JP2010216588A - Phase angle applying rotary device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a phase angle applying rotary device capable of finely and highly accurately applying a phase angle, by always successively limitlessly applying the phase angle in one direction, to a workpiece held by tables on a rotary plate, even in high speed rotation of the rotary plate. <P>SOLUTION: This phase angle applying rotary device 10 has the rotary plate 20 for rotatably supporting a plurality of tables 23 and a phase gear 35 for rotating the respective tables 23 around a central shaft, and has a rotational driving transmitting means for transmitting rotational driving force from a main rotational driving source 22 so as to rotate the rotary plate 20 and the phase gear 35 in the same direction at the same angular velocity, and a rotation angle transmitting means for transmitting a predetermined rotation angle only by rotation to one of the rotary plate 20 or the phase gear 35 from a phase rotating source 36. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  More specifically, the present invention relates to a rotating device that supports a plurality of tables so as to be rotatable about its own axis, and a gear connected to each of the tables. And a phase gear that rotates around the central axis, and a rotational phase difference is generated between the rotating plate and the phase gear so that each of the tables rotates at an arbitrary angle and is phased on the work held on the table. The present invention relates to a phase angle imparting rotation device that imparts an angle.

  2. Description of the Related Art Conventionally, there is an inspection chip configured by forming ultra-small groove channels on a substrate such as a quartz plate or a polymer resin plate. Centrifugal force is applied to the collected blood or a test chip containing reagents, washing liquid, etc. to separate the blood into blood cells and plasma components, and then the test chip is rotated by a predetermined angle in the state where the centrifugal force is applied. Thus, there is known a phase angle applying and rotating device for transferring a plasma component or the like along a groove flow path by centrifugal force (for example, see Patent Document 1).

  This phase angle imparting rotation device includes a rotating plate and a phase gear. The rotating plate is coupled to the rotation output shaft of the rotation drive source on its own rotation center axis by a coupling, and supports the plurality of tables so as to rotate around the rotation center axis. The plurality of tables have gears meshing with the phase gears and hold inspection chips. A spline is formed at the center of rotation of the rotating plate, and one end of the shaft is engaged with this, so the shaft is free to move along the axial direction (vertical direction), but the movement along the rotational direction is not It is restrained. A screw is formed at the other end of the shaft, and is rotated with a nut fixed to the phase gear so as to be coaxial with the rotation center thereof.

  With this configuration, when the shaft is moved linearly along the axial direction by the linear actuator, the phase gear to which the nut is fixed is rotated around the rotation center axis of the rotating plate by the linear / rotational conversion action of the screw and nut of the shaft. And a rotational phase difference is generated between the rotating plate and the phase gear.

  Since the rotation of the phase gear is transmitted to each of the tables via the meshing gears, each of the plurality of tables can be rotated on the rotating plate around the central axis. Then, by rotating the table at a predetermined angle in this way, a phase angle could be given to the inspection chip held on the table.

JP-A-2005-241617

  However, in the conventional phase angle imparting rotation device as described above, the shaft is linearly moved along the axial direction thereof, and the phase gear is made relative to the rotating plate by the linear / rotational conversion action of the screw and nut of the shaft. The table is rotated by a predetermined angle to rotate it at a predetermined angle to give a phase angle to the inspection chip. For this reason, the phase angle cannot be given in the reverse direction from the middle due to the relationship between the groove flow paths in the inspection chip, and when the phase angle must be given in only one direction, it is fixed to the shaft screw and the phase gear. The range of rotation with the nut, that is, the range of the phase angle that can be given is determined by the length of the screw forming portion in the shaft axis direction, and the range of the phase angle that can be given is limited.

  In this case, in order to increase the range of the phase angle that can be applied, it is necessary to increase the length of the screw forming portion of the shaft, but this leads to an increase in the size of the device, and the phase is always in only one direction. An apparatus for providing a corner cannot be realized.

  In addition, when the above-described phase angle imparting rotation device is applied to an inspection chip that requires a fine and highly accurate phase angle, the stroke in which the screw makes one round around the shaft, that is, the lead angle is increased to increase the rotation portion. It is necessary to increase the linear / rotational conversion ratio in order to obtain a small rotation angle of the phase gear with a large amount of linear movement of the shaft.

  However, if the lead angle is increased, the amount of linear motion needs to be increased in order to obtain a necessary phase angle, and there is a limit to a device with a limited size. In other words, in the conventional phase angle imparting rotation device, the phase angle is imparted to the inspection chip by rotating the phase gear by linear motion / rotational conversion, so there is a limit to the fineness and high accuracy of the phase angle to be imparted. there were.

  As described above, the conventional phase angle applying rotation device cannot be applied to an inspection chip that is always required to successively apply phase angles in only one direction, or an inspection chip that is required to provide a fine and highly accurate phase angle. As a result, there has been a drawback that it has become an obstacle to the optimum groove flow path design of the inspection chip, which has prevented the realization of a high-performance inspection chip.

  In view of the above circumstances, the present invention can always give a phase angle in one direction to the workpiece held on the table on the rotating plate without any limitation even in the high speed rotation of the rotating plate. An object of the present invention is to provide a phase angle applying and rotating device capable of providing a phase angle finely and with high accuracy.

  In order to achieve the above object, a phase angle imparting rotation device according to claim 1 of the present invention is connected to a rotary plate that supports a plurality of tables so as to be rotatable about its own axis, and to each of the tables. A phase gear that meshes with a gear and rotates each of the tables around a central axis, and generates a rotational phase difference between the rotating plate and the phase gear, thereby allowing each of the tables to be rotated at an arbitrary angle. A rotating device that rotates the rotating plate and the phase gear to rotate the rotating plate and the phase gear in the same direction so as to rotate in the same direction. Rotation drive transmission means for transmitting the rotation drive force of the rotation, a phase rotation source provided independently outside the rotation drive force transmission path by the rotation drive transmission means, and rotation between the rotation plate and the phase gear To produce a phase difference, a predetermined angle of rotation applied from the phase rotation source, characterized in that a rotation angle transmitting means for transmitting only the rotation to the rotary plate or the phase gear.

  According to a second aspect of the present invention, in the first aspect described above, the rotation drive transmission unit and the rotation angle transmission unit include a common differential gear unit, and the differential gear unit includes a plurality of differential gear units. It is constituted by meshing of bevel gears.

  The invention according to claim 3 of the present invention is characterized in that, in claim 2 described above, the differential gear unit is configured by meshing of a sun gear, a planetary gear, and an internal gear. .

  According to a fourth aspect of the present invention, in the second aspect described above, the differential gear unit is configured by meshing of a gear train composed of an internal gear and an external gear having different numbers of teeth. It is characterized by being.

  According to the present invention, the rotational drive transmission means for transmitting the rotational driving force from the main rotational driving source so as to rotate the rotating plate and the phase gear in the same direction at the same angular velocity, and the predetermined rotational angle applied from the phase rotational source. Is transmitted to the rotating plate or the phase gear only by rotation, and a rotation angle transmitting means for generating a rotational phase difference between the rotating plate and the phase gear is provided, so even during high-speed rotation of the rotating plate, It is possible to always give a phase angle in one direction to each of the workpieces held on the plurality of tables on the rotating plate without limitation. In addition, since the rotation angle is transmitted with high accuracy, the phase angle can be applied with high accuracy even during high-speed rotation of the rotating plate.

  Since the phase angle imparting rotation device of the present invention has the excellent effects as described above, it can be applied to an inspection using any inspection chip, and can optimize the groove flow path design of the inspection chip, thereby performing a high-performance inspection. Promote the realization of chips.

FIG. 1 is a longitudinal sectional view showing a phase angle imparting rotation device according to a first embodiment of the present invention, and is a central longitudinal sectional view cut along a plane passing through the center of a rotating plate when viewed from above. . FIG. 2 is an explanatory diagram showing the inspection chip shown in FIG. FIG. 3 is an explanatory diagram for explaining the operation in the case where a rotational driving force is applied from the main rotational driving source in the phase angle imparting rotating device shown in FIG. FIG. 4 is a plan view schematically showing how the rotating plate and the table shown in FIG. 1 rotate. FIG. 5 is a plan view schematically showing how the rotating plate and the table shown in FIG. 1 rotate. FIG. 6 is a plan view schematically showing how the rotating plate and the table shown in FIG. 1 rotate. FIG. 7 is a plan view of the rotating plate shown in FIG. FIG. 8 is an explanatory diagram showing the inspection chip shown in FIG. FIG. 9 is an explanatory diagram for explaining the operation in the case where the phase rotation driving force is applied from the phase rotation source in the phase angle imparting rotation device shown in FIG. FIG. 10 is a plan view of the rotating plate shown in FIG. FIG. 11 is an explanatory diagram showing the inspection chip shown in FIG. 12 is a plan view of the rotating plate shown in FIG. FIG. 13 is an explanatory diagram showing the inspection chip shown in FIG. FIG. 14 is a longitudinal sectional view showing a phase angle imparting rotation device according to a second embodiment of the present invention, and is a central longitudinal sectional view showing a phase passing through the center of the rotating plate when viewed from above. . FIG. 15 is an explanatory diagram for explaining the operation in the case where the rotational driving force is applied from the main rotational driving source in the phase angle imparting rotating device shown in FIG. FIG. 16 is an explanatory diagram for explaining the operation when the phase rotation driving force is applied from the phase rotation source in the phase angle imparting rotation device shown in FIG. FIG. 17 is a longitudinal sectional view showing a phase angle imparting rotation device according to the third embodiment of the present invention, and is a central longitudinal sectional view showing a section passing through the center of the rotating plate when viewed from above. . FIG. 18 is an explanatory diagram showing the configuration of the wave gear shown in FIG. FIG. 19 is an explanatory diagram for explaining the operation in the case where the rotational driving force is applied from the main rotational driving source in the phase angle imparting rotating device shown in FIG. FIG. 20 is an explanatory diagram for explaining the operation in the case where the phase rotation driving force is applied from the phase rotation source in the phase angle imparting rotation device shown in FIG.

  Exemplary embodiments of a phase angle imparting rotation device according to the present invention will be described below in detail with reference to the accompanying drawings.

<Embodiment 1>
FIG. 1 is a longitudinal sectional view showing a phase angle imparting rotation device according to a first embodiment of the present invention, and is a central longitudinal sectional view cut along a plane passing through the center of a rotating plate when viewed from above. . The phase angle imparting rotation device 10 exemplified here includes a rotating plate 20, a differential gear unit 30, and the like.

  The rotary plate 20 is a circular plate-like body, and is connected to a main rotation drive source 22 such as a motor via a shaft member 21. Here, the shaft member 21 is a long member extending in the vertical direction, and transmits the rotational driving force applied from the main rotational driving source 22 to the central portion of the rotating plate 20. As a result, the rotating plate 20 can rotate about its own axis, that is, the central axis of the shaft member 21 as its axis.

  The rotating plate 20 supports a plurality of tables 23. More specifically, the rotating plate 20 has a plurality of support holes 20a formed in the circumferential direction. A bearing member 23b such as a bearing is fixed to each of the support holes 20a. A rod-like connecting member 23a whose upper end is connected to the table 23 is supported on the bearing member 23b in a manner that it can rotate around its axis and is restricted from moving in the vertical direction. The table 23 is a circular plate-like body having a diameter much smaller than that of the rotary plate 20, and is for holding the inspection chip (work) 100 placed on the upper surface thereof. A table gear 24 is connected to the lower end of the connecting member 23a penetrating the bearing member 23b. Thus, the rotating plate 20 supports the plurality of tables 23 so as to be rotatable around its own axis. The table 23, the connecting member 23a, and the table gear 24 that are connected to each other are freely rotated on the rotating plate 20 around the central axis of the connecting member 23a.

  As shown in FIG. 2, the inspection chip 100 held on the table 23 is configured by forming an ultra-small groove channel and an inspection unit 101 on a substrate such as a quartz plate or a polymer resin plate. is there. Inside the test chip 100, collected blood 110, reagents 111 to 115, and a cleaning liquid 116 are preliminarily embedded. Such a test chip 100 is conventionally known and will not be described in detail.

  Referring again to FIG. 1, the differential gear unit 30 includes a plurality of gear trains, and includes an input side bevel gear 31, a pinion gear 34, an output side bevel gear 32, and a link gear 33.

  The input-side bevel gear 31 is held at a lower portion thereof in a manner that the shaft member 21 that is inserted is rotatable through a bearing and is constrained from moving along the vertical direction. The shaft member 21 can be rotated independently of the shaft member 21 around the shaft center. An intermediate gear 43 constituting the reverse rotation mechanism 40 is integrally provided below the input side bevel gear 31, and the reverse rotation gear 41 is provided at a position where the intermediate gear 43 can be meshed. The reverse rotation mechanism 40 includes the intermediate gear 43, the reverse rotation gear 41, the secondary pulley 45 integrally connected to the reverse rotation gear 41 via a shaft member, and the outer peripheral surface of the secondary pulley 45 at a constant pitch. A transmission belt 42 that engages with the teeth and a main pulley 44 that engages with the transmission belt 42 and transmits the rotational driving force of the shaft member 21 are provided. The main pulley 44 is connected and fixed in such a manner as to be inserted into the shaft member 21, and teeth are provided at a constant pitch on the outer peripheral surface thereof. The reverse gear 41 is held by a holding device (not shown) so as to be rotatable around each central axis and restricted in movement in the vertical direction. With the above configuration, the reverse rotation mechanism 40 transmits the rotational force of the shaft member 21, that is, the rotational drive force of the main rotational drive source 22 through the main pulley 44, the transmission belt 42, the sub pulley 45, the reverse gear 41, and the intermediate gear 43. This is transmitted to the input side bevel gear 31 to rotate the input bevel gear 31 in the direction opposite to the rotation direction of the shaft member 21.

  The output-side bevel gear 32 is arranged in a mode in which the shaft member 21 is inserted in a region above the input-side bevel gear 31 and below the rotating plate 20. The output-side bevel gear 32 is held at the upper part thereof in such a manner that the shaft member 21 is freely rotatable via a bearing and the movement along the vertical direction is constrained. As a result, the shaft member 21 can rotate independently of the shaft member 21.

  The output side bevel gear 32 is linked to the input side bevel gear 31 via a pair of pinion gears 34 arranged symmetrically with respect to the shaft member 21. More specifically, the output side bevel gear 32 is provided so as to be able to mesh with each of the two pinion gears 34 arranged so as to be meshed with the input side bevel gear 31.

  Further, a phase gear 35 is integrally provided on the output side bevel gear 32 so that the shaft member 21 and the shaft center coincide with each other. The phase gear 35 is disposed at a position where it can mesh with each of the table gears 24. Such a phase gear 35 rotates independently of the shaft member 21 at the same time as the bevel gear 32 provided integrally around its own axis, that is, the central axis of the shaft member 21.

  Due to the rotation of the phase gear 35, each of the table gears 24 meshed with the phase gear 35 is rotated around the axis center regardless of the rotary plate 20 connected to the shaft member 21, and each of the tables 23 is rotated. Rotate. On the other hand, even if the phase gear 35 is stationary and fixed without rotating itself, the rotating plate 20 rotates around the axis, thereby rotating each of the table gears 24 around the axis, Each of the tables 23 can also be rotated. That is, the phase gear 35 meshes with a gear connected to each of the tables 23 and rotates each of the tables 23 around the central axis.

  The link gear 33 is disposed in such a manner that the link gear 33 is rotatable through a bearing and is restricted from moving in the vertical direction while being inserted through a member in which the output bevel gear 32 and the phase gear 35 are integrated. Thus, the shaft member 21 can be rotated about its central axis as a central axis. The link gear 33 rotatably supports the pair of pinion gears 34 described above.

  A phase bevel gear 37 connected to the phase rotation source 36 via a phase shaft 36 a is provided at a position where the link gear 33 can be engaged. The phase rotation source 36 has a rotation shaft such as a motor, and can rotate it arbitrarily by an arbitrary rotation angle. The phase rotation source 36 is connected to the phase shaft 36a at an arbitrary timing according to a control command. An arbitrary rotation angle is given to the phase bevel gear 37 around its central axis via Furthermore, the phase rotation source 36 can provide rotation angles in one direction one after another without limitation due to its configuration, and can be provided with an encoder or the like so that the rotation angle can be given with a fine and high accuracy. Since the phase rotation source 36 is mechanically fixed at a time other than giving a predetermined rotation angle, the phase shaft 36a and the phase bevel gear 37 connected thereto are also fixed stationary.

  FIG. 3 is an explanatory diagram for explaining an operation when a driving force is applied from the main rotation driving source 22 in the phase angle imparting rotation device 10 having the above-described configuration. In FIG. 3, members that are operated by a rotational driving force applied by the main rotational driving source 22 are hatched. The operation of the phase angle imparting rotation device 10 will be described with reference to FIG.

  First, when the shaft member 21 is rotated about its own axis, for example, clockwise when viewed from above, by a rotational driving force applied from the main rotational drive source 22, a rotating plate integrally connected to the shaft member 21. 20 and the main pulley 44 also rotate clockwise. The rotation of the main pulley 44 is transmitted to the sub pulley 45 by the transmission belt 42, and the sub pulley 45 rotates clockwise around its own central axis. As the slave pulley 45 rotates in the clockwise direction, the reversing gear 41 connected thereto rotates in the clockwise direction around its own axis. The clockwise rotation of the reverse gear 41 is transmitted to an intermediate gear 43 that can mesh with the reverse gear 41, and the intermediate gear 43 and the input side bevel gear 31 provided integrally therewith are reversely moved. That is, it is rotated counterclockwise.

  Due to the counterclockwise rotation of the input side bevel gear 31 about its own axis, a pair of pinion gears 34 arranged so as to be able to mesh with the input side bevel gear 31 rotate, and the pair of pinion gears 34 further rotates. This is transmitted to the output-side bevel gear 32 that can mesh with this, and the output-side bevel gear 32 is rotated in the clockwise direction about its own central axis, that is, the central axis of the shaft member 21. At this time, the link gear 33 is stationary and fixed without rotating, and the pinion gear 34 that is axially supported by the link gear 33 only rotates around its own axis.

  Since the output side bevel gear 32 rotates in the clockwise direction around its own axis, the phase gear 35 provided integrally with the output side bevel gear 32 also rotates in the clockwise direction when viewed from above. The number of teeth of each gear and pulley constituting the reversing mechanism 40 and the differential gear unit 30 is adjusted in advance so that the angular speed of the phase gear 35 is the same as each speed of the rotating plate 20, whereby the phase gear 35 Rotate at the same angular velocity in the clockwise direction, which is the same direction as the rotating plate 20. As a result, the phase gear 35, the table gear 24 meshing with the phase gear 35, and the table 23 connected thereto rotate “integrally” with the rotating plate 20 around the central axis of the shaft member 21 at the same angular velocity. .

  Adjustment of the number of teeth of each gear and pulley to make the angular velocity w20 of the rotating plate 20 and the angular velocity w35 of the phase gear 35 the same is performed as follows. First, the main pulley 44, the sub pulley 45, the reverse gear 41, the intermediate gear 43, the input side bevel gear 31, which are involved in transmitting the rotational driving force applied from the main rotational driving source 22 to the rotary plate 20 and the phase gear 35, The number of teeth of the pinion gear 34 and the output side bevel gear 32 is N44, N45, N41, N43, N31, N34, and N32, respectively. Since the shaft member 21 connected to the main rotation drive source 22 is also connected to the rotary plate 20, when the shaft member 21 rotates at the angular velocity w20, the main pulley 44 connected to the shaft member 21 also has the same angular velocity. The rotation speed of the phase gear 35 is expressed as w35 = w20 × (N44 / N45) × (N41 / N43) × (N31 / N34) × (N34 / N32). Therefore, in order to make the angular velocity w20 of the rotating plate 20 and the angular velocity w35 of the phase gear 35 the same, α1 = (N44 / N45) × (N41 / N43) × (N31 / N34) × (N34 / N32) The number of teeth of the main pulley 44, the sub pulley 45, the reverse gear 41, the intermediate gear 43, the input side bevel gear 31, the pinion gear 34, and the output side bevel gear 32 is selected and adjusted so as to be 1.

  Here, a description will be given of the fact that the plurality of tables 23 rotate together with the rotating plate 20. 4-6 is a top view which shows typically the mode of rotation of the rotating plate 20 and the table 23, respectively. It will be described that the plurality of tables 23 rotate “integrally” with the rotating plate 20 using FIGS. 4 to 6 as appropriate.

  As shown in FIGS. 4A and 4B, when the phase gear 35 is rotated, for example, in the clockwise direction with the rotating plate 20 stopped and fixed, the table is in a meshable relationship with the phase gear 35. The gears 24 respectively rotate in the counterclockwise direction, whereby the table 23 connected to the table gear 24 and in an integral relationship rotates in the counterclockwise direction.

  On the other hand, as shown in FIGS. 5A and 5B, when the rotating plate 20 is rotated, for example, in the clockwise direction with the phase gear 35 stopped and fixed, the table gear 24 is fixed. The table 23 that rotates in the clockwise direction while meshing with the table 35 rotates in the clockwise direction, and thus rotates in the clockwise direction.

  Therefore, when the rotating plate 20 and the phase gear 35 rotate in the same direction at the same angular velocity, as shown in FIGS. 6A and 6B, the rotation of the table 23 shown in FIG. 4 and the rotation shown in FIG. Since the rotations of the table 23 cancel each other, the table 23 does not rotate. As a result, the table 23 rotates “integrally” with the rotary plate 20. As described above, the rotating plate 20 holding the table 23 and the table gear 24 and the phase gear 35 rotate in the same direction around the axis of the shaft member 21 in the same direction, and there is a relative speed difference therebetween. It can be said that there is no.

  As shown in FIG. 7, when the table 23 rotates together with the rotating plate 20 without rotating, a centrifugal force acts on the inspection chip 100 held on the table 23, and the inspection chip 100 is shown in FIG. The state changes from the initial state to the state shown in FIG. That is, the cleaning liquid 116 is moved to clean the inspection unit 101, the blood 110 is transferred and separated into the blood cell 110a and the plasma component 110b, and the reagents 111 to 115 are transferred and mixed. Is done.

  In this way, when the rotation angle is given from the phase rotation source 36 in a state where the table 23 and the rotating plate 20 are rotated integrally by the rotation driving force from the main rotation driving source 22, the phase angle giving rotation device. The operation of 10 will be described with reference to FIG.

  FIG. 9 is a schematic vertical cross-sectional view at the center of the shaft member 21 of the phase angle giving rotation device 10, but the members that operate relatively when the rotation angle is given by the phase rotation source 36 are hatched. . For convenience of explaining the relative operation in FIG. 9, the description will be made assuming that the members not hatched are stopped.

  First, the rotation angle θ37 is applied from the phase rotation source 36 to the phase bevel gear 37 via the phase shaft 36a, for example, in the clockwise direction when viewed from the phase bevel gear 37 toward the phase rotation source 36. When the phase bevel gear 37 rotates around its own axis in the clockwise direction by the rotation angle θ 37, the link gear 33 that can mesh with the phase bevel gear 37 also has its own axis, that is, the center of the shaft member 21. It rotates about the axis by the rotation angle θ33 = θ37 × N37 / N33 in the clockwise direction when viewed from above. Here, N37 and N33 are the numbers of teeth of the phase bevel gear 37 and the link gear 33, respectively. When the link gear 33 rotates in the clockwise direction by the rotation angle θ33 in this way, the pinion gear 34 supported by the link gear 33 is fixed to the shaft member 21 with respect to the input side bevel gear 31 that is stopped and fixed. While relatively rotating around, it meshes with the input side bevel gear 31 and rotates around its own axis. As described above, the pinion gear 34 rotates around the central axis of the shaft member 21, that is, revolves around the axis of the shaft member 21. As a result, the output-side bevel gear 32 having a meshable relationship is connected to the central axis of the shaft member 21. Rotate around the rotation angle θ32 = 2 × θ33 in the clockwise direction as viewed from above. That is, the rotation angle given from the phase rotation source 36 is transmitted to the output side bevel gear 32.

  As a result, the phase gear 35 provided integrally with the output side bevel gear 32 rotates in the clockwise direction relative to the rotating plate 20 by the rotation angle θ32, and only the rotation angle θ32 is provided between the two. Phase difference occurs. When the rotational phase difference occurs in this way, the table gear 24 that can mesh with the phase gear 35 rotates counterclockwise around the axis of the connecting member 23a by the rotation angle θ24 = θ32 × N35 / N24, that is, Rotate. Here, N35 and N24 are the numbers of teeth of the phase gear 35 and the table gear 24, respectively. As a result, the table 23 connected to the table gear 24 also rotates, that is, rotates in the counterclockwise direction that is the same direction as the table gear 24 by the same rotation angle θ24 as shown in FIG. A phase angle of θ24 is given. Here, the rotation angle θ24, which is the phase angle applied to the inspection chip 100, can be arbitrarily determined. As described above, in proportion to the rotation angle θ37 of the phase bevel gear 37 applied from the phase rotation source 36, θ24 = Θ37 × N37 / N33 × 2 × N35 / N24.

  As a result of the rotation of the table 23 by a predetermined rotation angle in this way, the test chip 100 held by the table 23 is given a phase angle in the counterclockwise direction, and is changed from the state shown in FIG. 8 to the state shown in FIG. 11, for example. change. That is, as the posture of the test chip is changed, the fractionation of the plasma component 110b separated from the blood 110 by the action of the centrifugal force and the mixing with the reagent 111 and the transfer of the remaining reagents 112 to 115 are performed in steps. Is called.

  Then, for a next process, for example, after a predetermined time, for example, from the phase rotation source 36 to the phase bevel gear 37 via the phase shaft 36a, and in the counterclockwise direction when viewed from the phase bevel gear 37 to the phase rotation source 36, When only the rotation angle θ37 is applied, the rotation angle θ37 is transmitted to the output side bevel gear 32 through the link gear 33 and the pinion gear 34 in the opposite direction. As a result, the phase gear 35 provided integrally with the output side bevel gear 32 rotates relative to the rotating plate 20 in the counterclockwise direction by the rotation angle θ32. As a result, the table gear 24 that can mesh with the phase gear 35 and the table 23 connected thereto rotate in the clockwise direction by the rotation angle θ24 as shown in FIG. Is given a phase angle of a rotation angle θ24.

  As a result of the table 23 rotating by a predetermined rotation angle in this way, the test chip 100 held on the table 23 maintains the posture shown in FIG. 13, and the mixed liquid of the plasma component 110 b and the reagent 111 mixed is used. Processing such as passing the inspection unit 101 and step-transferring the reagents 112 to 115 is performed.

  In the phase angle imparting rotation device 10 according to the first embodiment of the present invention, the shaft member 21, the reverse rotation mechanism 40, the input side bevel gear 31, the pinion gear 34, and the output side bevel gear 32 include the rotary plate 20 and the phase gear 35. Rotational drive transmission means for transmitting rotational drive force from the main rotational drive source 22 so as to rotate in the same direction at the same angular velocity. In addition, the phase rotation source 36 in which the phase shaft 36a, the phase bevel gear 37, the link gear 33, the pinion gear 34, and the output side bevel gear 32 are independently provided outside the rotational drive force transmission path by the rotational drive transmission means. The rotation angle transmission means is configured to transmit the predetermined rotation angle given from 1 to the phase gear 35 only by rotation.

  As described above, according to the phase angle imparting rotation device 10 according to the first embodiment of the present invention, the predetermined rotation angle given from the phase rotation source 36 is transmitted to the phase gear 35 through the rotation angle transmission means, As a result of causing a rotational phase difference between the rotating plate 20 and the phase gear 35, the table gear 24 meshed with the phase gear 35 rotates, and the inspection chip 100 held on the table 23 connected to the table gear 24 can be arbitrarily set. It can be rotated by the phase angle. In addition, the phase rotation source 36 is rotated by the phase shaft 36a, the input side bevel gear 31, the pinion gear 34, the output side bevel gear 32, the phase bevel gear 37, and the link gear 33 that constitute the rotation angle transmission means. The rotation angle is transmitted. Since the phase rotation source 36 can provide rotation angles one after another without limitation in one direction, the rotation angle is transmitted to the inspection chip 100 held on the table 23 by successively transmitting the rotation angles by the rotation transmission means. It is possible to always give an arbitrary phase angle in one direction without limitation. Further, since the rotation angle can be given from the phase rotation source 36 finely and with high accuracy, the phase angle can be given to the inspection chip 100 with fine and high accuracy. Furthermore, since the rotation angle applied from the phase rotation source 36 can be made finer by adjusting the number of teeth of each gear element constituting the rotation angle transmission means, the inspection chip 100 is ultrafine and ultrahigh precision. Can be given a phase angle.

  The application of an arbitrary phase angle to the inspection chip 100 is performed through a rotation angle transmission unit different from the rotation drive transmission unit that transmits the rotation driving force of the main rotation drive source 22 to the rotary plate 20 and the phase gear 35. The rotation can be performed while the rotating plate 20 is rotating, regardless of the rotation speed or the rotation direction. Since it is not necessary to stop the rotation of the rotating plate 20 in order to change the direction and orientation of the inspection chip 100, the liquid inside the inspection chip 100 moving in one direction due to the rotation diffuses in another direction when the rotation stops. There is no fear. Moreover, since the rotation of the rotating plate 20 is not stopped or started, the processing time can be shortened and noise and vibration can be reduced.

  Further, according to the phase angle imparting rotation device 10, the main rotation drive source 22 and the phase rotation source 36 can be installed outside the rotation area of the rotary plate 20, and connection of drive power, signal lines, and the like becomes easy.

<Embodiment 2>
FIG. 14 is a longitudinal sectional view showing the phase angle imparting rotation device 11 according to the second embodiment of the present invention, and is a central longitudinal sectional view cut along a plane passing through the center of the rotating plate when viewed from above. is there. In addition, the same code | symbol is attached | subjected to what has the same structure as the phase angle provision rotation apparatus 10 which is Embodiment 1 mentioned above, and the description is abbreviate | omitted suitably. The phase angle imparting rotation device 11 exemplified here includes a rotating plate 20, a phase gear 50, and the like.

  The rotating plate 20 is a circular plate-like body and is connected to the differential gear unit 60 via the shaft member 21. The rotary plate 20 can rotate about its own central portion, that is, the central axis of the shaft member 21 as its axis.

  The rotating plate 20 has the same configuration as the phase angle imparting rotating device 10 and includes a plurality of tables 23, table gears 24, a connecting member 23a, a support hole 20a, and a bearing member 23b. Here, a table gear 24 is coupled to the table 23 holding the inspection chip 100 via a coupling member 23a, and is supported by the rotating plate 20 so as to be rotatable about its own axis.

  The differential gear unit 60 includes a plurality of gear trains including a sun gear 63, a planetary gear 61, and an internal gear 64, and a carrier pulley 62. The planetary gear 61 is rotatably supported by the carrier pulley 62 and supported by the shaft in a manner in which movement along the vertical direction is restricted. The planetary gear 61 is disposed at a position where it can mesh with the sun gear 63 and the internal gear 64. is there. The internal gear 64 is connected and fixed to the lower end of the shaft member 21, and is disposed so as to be rotatable around the axis of the shaft member 21. The internal gear 64 rotates integrally with the rotating plate 20.

  The sun gear 63 is connected to the phase rotation source 36 via the phase shaft 36a, and rotates around the axis centered on the central axis of the phase shaft 36a.

  The carrier pulley 62 is inserted in the phase shaft 36a, and is held in such a manner that the carrier pulley 62 can freely rotate and is restricted from moving in the vertical direction. The center axis of the phase shaft 36a is the axis. It can rotate around its axis. The carrier pulley 62 has teeth that engage with the outer peripheral portion at a constant pitch, and is similarly connected to a first pulley P1 that has teeth that engage with the outer peripheral portion through a toothed transmission belt 65. . Accordingly, the rotational driving force of the first pulley P1 is transmitted from the transmission belt 65 to the carrier pulley 62.

  The first pulley P1 is disposed integrally with the main shaft 22a in a manner inserted through the main shaft 22a. Here, the main shaft 22a is an elongate one extending along the vertical direction, and the center axis of the main shaft 22a is rotated around the axis by the rotation driving force applied from the main rotation driving source 22 to be connected. Rotate to. That is, the first pulley P1 rotates around the axis of the main shaft 22a together with the main shaft 22a.

  The phase gear 50 is inserted in the shaft member 21 and holds the shaft member 21 in such a manner that the shaft member 21 is freely rotatable via bearings at the upper and lower ends and the movement along the vertical direction is restricted. The phase gear 50 itself is held in such a manner that its outer portion is rotatable around the axis of the shaft member 21 by a holding device (not shown) and is restricted from moving in the vertical direction. Are arranged at positions that can mesh with each of the table gears 24. Further, a third pulley P3 having teeth that engage with the transmission belt 25 at a constant pitch is integrally provided at the lower portion of the phase gear 50, and the phase gear 50 is integrated with the third pulley P3. Thus, the shaft member 21 can rotate around the axis. Here, the third pulley P3 is connected to a second pulley P2 formed integrally with the main shaft 22a via a toothed transmission belt 25. The second pulley P2 includes teeth that engage with the transmission belt 25 at a constant pitch on the outer periphery thereof. When the second pulley P2 rotates together with the main shaft 22a, the rotational driving force is transmitted to the third pulley P3 via the transmission belt 25, and the third pulley P3 and the phase gear 50 are rotated around the axis of the shaft member 21. Will rotate.

  The phase gear 50 rotates about its own axis, that is, the central axis of the shaft member 21, thereby rotating each of the table gears 24 about the axis regardless of the rotation state of the rotating plate 20. it can. As a result, the table 23 connected to the table gear 24 via the connecting member 23a also rotates around its axis. On the other hand, even when the phase gear 50 is stationary and fixed, when the rotating plate 20 rotates around the axis of the shaft member 21, each of the table gears 24 also rotates around the axis of the shaft member 21. Since it rotates while meshing with 50, each of the table gear 24 and the table 23 connected thereto rotates around its axis.

  FIG. 15 is an explanatory diagram for explaining the operation in the case where a rotational driving force is applied from the main rotational driving source 22 in the phase angle imparting rotating device 11 having the above-described configuration. In FIG. 15, the members that are operated by the rotational driving force from the main rotational driving source 22 are hatched. The operation of the phase angle giving / rotating device 11 will be described with reference to FIG.

  First, when the main shaft 22a is rotated about its own axis, for example, clockwise when viewed from above, by the rotational driving force applied from the main rotational drive source 22, the first provided integrally with the main shaft 22a. The pulley P1 and the second pulley P2 also rotate in the clockwise direction. The rotation of the first pulley P1 is transmitted to the carrier pulley 62 via the transmission belt 65, and the carrier pulley 62 rotates clockwise around its own axis, that is, the central axis of the phase shaft 36a. Due to the rotation of the carrier pulley 62, the planetary gear 61 rotatably supported by the carrier pulley 62 meshes with both the sun gear 63 and the internal gear 64 that are stationary and fixed, and its own shaft center. While rotating in the clockwise direction, that is, rotating, it rotates in the clockwise direction around the central axis of the phase shaft 36a, that is, revolves. Due to the rotation and revolution of the planetary gear 61, the internal gear 64 meshing with the planetary gear 61 rotates in the clockwise direction around its own axis, that is, the central axis of the shaft member 21. As a result, the rotating plate 20 integrally connected via the internal gear 64 and the shaft member 21 also rotates clockwise around the central axis of the shaft member 21.

  On the other hand, the clockwise rotation of the second pulley P2 provided integrally with the first pulley P1 on the main shaft 22a is transmitted to the third pulley P3 via the transmission belt 25 and integrated with the third pulley P3. The phase gear 50 provided in the shaft also rotates clockwise around the axis of the shaft member 21. The phase gear 50 and the rotating plate 20 rotate in the same direction but rotate at the same angular velocity so that the number of teeth of each gear and pulley that transmits the rotational driving force to each of the phase gear 50 and the rotating plate 20 is predetermined. It has been adjusted. As a result, the phase gear 50, the table gear 24 meshing with the phase gear 50, and the table 23 connected to the phase gear 50 rotate about the central axis of the shaft member 21 at the same angular velocity as the rotating plate 20. .

  Adjustment of the number of teeth of each gear and pulley to make the angular velocity w20 of the rotating plate 20 and the angular velocity w50 of the phase gear 50 the same is performed as follows. First, the second pulley P2, the third pulley P3, the first pulley P1, the carrier pulley 62, and the planetary gear 61 that are involved in transmitting the rotational driving force applied from the main rotational driving source 22 to the rotary plate 20 and the phase gear 50. The numbers of teeth of the sun gear 63 and the internal gear 64 are NP2, NP3, NP1, N62, N61, N63, and N64, respectively. Assuming that the angular velocity of the main shaft 22a directly connected to the main rotational drive source 22 is w22a, the angular velocity w20 = w22a × (NP1 / N62) × (1 + N63 / N64) of the rotating plate 20, and the angular velocity w50 = w22a × of the phase gear 50. Since it is expressed as (NP2 / NP3), in order to make the angular velocity w20 of the rotating plate 20 and the angular velocity w50 of the phase gear 50 the same, (NP1 / N62) × (1 + N63 / N64) = NP2 / NP3 The number of teeth of the second pulley P2, the third pulley P3, the first pulley P1, the carrier pulley 62, the sun gear 63, and the internal gear 64 is selected and adjusted.

  Next, FIG. 16 is an explanatory diagram for explaining the operation when the rotation angle is given from the phase rotation source 36 in the phase angle giving rotation device 11 having the above-described configuration. In FIG. 16, the members that move relatively when the rotation angle is given by the phase rotation source 36 are hatched. In FIG. 16, for the sake of convenience in explaining the relative operation, it is assumed that the members not hatched are stopped.

  First, the rotation angle θ63 is applied from the phase rotation source 36 to the sun gear 63 via the phase shaft 36a, for example, in the clockwise direction as viewed from above. When the sun gear 63 rotates around its own axis in the clockwise direction by the rotation angle θ63, the planetary gear 61 that can mesh with the sun gear 63 rotates around its own axis in the counterclockwise direction. The angle θ61 = θ63 × N63 / N61 is rotated. Here, N63 and N61 are the numbers of teeth of the sun gear 63 and the planetary gear 61, respectively.

  The rotation of the planetary gear 61 causes the internal gear 64 to rotate together with the shaft member 21 in the counterclockwise direction around the axis thereof by the rotation angle θ64 = θ61 × N61 / N64. The rotating plate 20 also rotates counterclockwise by the rotation angle θ64. Here, N64 is the number of teeth of the internal gear 64.

  Therefore, in proportion to the rotation angle θ63 of the sun gear 63, the rotation plate 20 rotates counterclockwise by the rotation angle θ64 = θ63 × N63 / N64 with respect to the phase gear 50. And the phase gear 50 cause a rotational phase difference by a rotational angle θ64.

  When a rotational phase difference occurs between the rotating plate 20 and the phase gear 50 in this way, the table gear 24 that can mesh with the phase gear 50 is rotated counterclockwise around the axis of the shaft member 21 together with the rotating plate 20. Rotate in the direction by the rotation angle θ64, and rotate in the counterclockwise direction around the axis of the connecting member 23a by the rotation angle θ24 = θ64 × N50 / N24. Here, N50 and N24 are the numbers of teeth of the phase gear 50 and the table gear 24, respectively.

  Due to the rotation of the table gear 24, the table 23 connected thereto also rotates by the same rotation angle θ24 in the same direction as the table gear 24, and the inspection chip 100 held on the table 23 has a phase angle of the rotation angle θ24. Will be granted. Here, the rotation angle θ24 which is a phase angle given to the inspection chip 100 can be arbitrarily determined, and specifically, proportional to the rotation angle θ63 of the sun gear 63 given from the phase rotation source 36 as described above. Θ24 = θ63 × N63 / N64 × N50 / N24.

  In the phase angle imparting rotation device 11 according to the second embodiment of the present invention, the main shaft 22a, the second pulley P2, the transmission belt 25, the third pulley P3, the first pulley P1, the transmission belt 65, the carrier pulley 62, Rotational drive transmission means for transmitting rotational drive force from the main rotational drive source 22 so that the planetary gear 61, the internal gear 64, and the shaft member 21 rotate the rotary plate 20 and the phase gear 50 in the same direction at the same angular velocity. It is composed. In addition, the phase shaft 36 a, the sun gear 63, the planetary gear 61, the internal gear 64, and the shaft member 21 transmit a predetermined rotation angle given from the phase rotation source 36 to the rotating plate 20 only by rotation. Is configured.

  As described above, according to the phase angle imparting rotation device 11 according to the second embodiment of the present invention, the predetermined rotation angle given from the phase rotation source 36 is transmitted to the rotating plate 20 through the rotation angle transmission means, As a result of causing a rotational phase difference between the rotating plate 20 and the phase gear 50, the table gear 24 meshed with the phase gear 50 rotates, and the inspection chip 100 held on the table 23 connected to the table gear 24 can be arbitrarily set. It can be rotated by the phase angle. Further, the phase shaft 36a, the sun gear 63, the planetary gear 61, the internal gear 64, and the shaft member 21 constituting the rotation angle transmission means rotate only around their own axis centers, so that predetermined rotation from the phase rotation source 36 occurs. Transmit the angle. Since the phase rotation source 36 can provide rotation angles one after another without limitation in one direction, the rotation angle is transmitted to the inspection chip 100 held on the table 23 by successively transmitting the rotation angles by the rotation transmission means. It is possible to always give an arbitrary phase angle in one direction without limitation. Further, since the rotation angle can be given from the phase rotation source 36 finely and with high accuracy, the phase angle can be given to the inspection chip 100 with fine and high accuracy. In addition, since the rotation angle provided from the phase rotation source 36 can be made finer by adjusting the number of teeth of each gear element constituting the rotation angle transmission means, the inspection chip 100 is ultrafine and ultrahigh precision. Can be given a phase angle.

  The application of an arbitrary phase angle to the inspection chip 100 is performed through a rotation angle transmission unit different from the rotation drive transmission unit that transmits the rotation driving force of the main rotation drive source 22 to the rotation plate 20 and the phase gear 50. The rotation can be performed while the rotating plate 20 is rotating, regardless of the rotation speed or the rotation direction. Since it is not necessary to stop the rotation of the rotating plate 20 in order to change the direction and posture of the inspection chip 100, the liquid inside the inspection chip 100 that is moving in one direction due to the rotation diffuses in another direction when the rotation stops. There is no fear of it. In addition, since the rotation of the rotating plate 20 is not stopped or started, the processing time can be shortened and noise and vibration can be reduced.

  Further, according to the phase angle applying rotation device 11, the main rotation drive source 22 and the phase rotation source 36 can be installed outside the rotation region of the rotating plate 20, and connection of driving power, signal lines, and the like is facilitated.

<Embodiment 3>
FIG. 17 is a longitudinal sectional view showing the phase angle imparting rotation device 12 according to the third embodiment of the present invention, and is a central longitudinal sectional view cut along a plane passing through the center of the rotating plate when viewed from above. is there. In addition, what has the same structure as the phase angle giving rotation apparatus 10 which is Embodiment 1 mentioned above and the phase angle addition rotation apparatus 11 which is Embodiment 2 attaches | subjects the same code | symbol, and demonstrates the description suitably. Omitted. The phase angle imparting rotation device 12 exemplified here includes the rotation plate 20, the differential gear unit 70, and the like.

  A main rotation drive source 22 is connected to the rotation plate 20 via a shaft member 21 in the same manner as the phase angle giving rotation device 10, and the rotation plate 20 is rotated by the rotation drive force applied from the main rotation drive source 22. The center portion of the shaft member 21, that is, the central axis of the shaft member 21 rotates around the axis.

  The rotating plate 20 has the same configuration as the phase angle imparting rotating devices 10 and 11, and includes a plurality of tables 23, a table gear 24, a connecting member 23a, a support hole 20a, and a bearing member 23b. Here, a table gear is connected to the table 23 holding the inspection chip 100 via a connecting member 23a, and is supported by the rotating plate 20 so as to be rotatable around its own axis.

  The differential gear unit 70 is configured by a plurality of gear trains mainly including a wave gear 71, an output side gear 74, a correction gear 72, and an input side gear 73. The wave gear 71 is called Harmonic Drive (registered trademark) and is sold by Harmonic Drive Systems, Inc., and has the configuration shown in FIG. That is, the wave gear 71 includes a wave generator 711 in which a thin ball bearing 712 is fitted on the outer periphery of an elliptical cam 715 and a flex spline 713 which is an external gear in which external teeth are formed on a thin cup-shaped outer peripheral surface. And a circular spline 714 that is a hollow cylindrical internal gear having internal teeth formed on the inner peripheral surface.

  An elliptical cam 715 of the wave generator 711 is fixed to an inner ring (not shown) of the ball bearing 712. When the cam 715 rotates, an outer ring (not shown) is elastically deformed via the ball of the ball bearing 712. In other words, the wave generator 711 is deformed so that its outermost peripheral surface rotates an elliptical object such as a rugby ball by the rotation of the cam 715. Therefore, the expression "rotate the wave generator 711" Synonymous with rotating around the central axis. The wave generator 711 also has a characteristic that it can rotate relative to the inner ring of the ball bearing 712 to which the cam 715 is fixed because the outermost peripheral surface thereof is the outer ring of the ball bearing 712. The outer peripheral surface of the flexspline 713 can be freely elastically deformed, and the outer teeth mesh with the inner teeth formed on the inner peripheral surface of the circular spline 714. Normally, the number of external teeth of the flexspline 713 is two less than the number of internal teeth of the circular spline 714. When the wave generator 711 is rotated, the outer peripheral surface of the flexspline 713 is also deformed accordingly, and the outer teeth of the flexspline 713 are pressed against the inner teeth of the circular spline 714 near the elliptical long axis. As a result, the flex spline 713 can rotate relative to the wave generator 711.

  In the wave gear 71, when the circular spline 714 is fixed and the wave generator 711 is rotated once, the flex spline 713 rotates by the number of teeth of two in the direction opposite to the rotation direction of the wave generator 711. In order to generalize this, assuming that the number of external teeth of the flexspline 713 is N713 and the number of internal teeth of the circular spline 714 is N714, when the wave generator 711 is rotated by the rotation angle θ711, the flexspline 713 In the opposite direction, the rotation angle is θ713 = θ711 × (N714-N713) / N713.

  On the other hand, when the wave generator 711 is fixed and the circular spline 714 is rotated once, the flex spline 713 has the same number of teeth as the circular spline 714 and the flex spline 713 in one rotation in the same direction as the circular spline 714. Rotate by the difference, for example, the sum of the number of two teeth. In this case, the rotation angle θ713 of the flexspline 713 is represented by θ713 = θ714 × (1+ (N714-N713) / N713), where the rotation angle of the circular spline 714 is θ714.

  Referring again to FIG. 17, the phase shaft 36 a is fixed to the cam 715 of the wave generator 711 constituting the wave gear 71 in such a manner that it is inserted. Since the phase shaft 36 a is connected to the phase rotation source 36, a predetermined rotation angle can be given to the wave generator 711 from the phase rotation source 36.

  The circular spline 714 is connected to the input side gear 73. Since the input side gear 73 is inserted in the phase shaft 36a and is held in such a manner that the input side gear 73 is rotatable through a bearing and the movement in the vertical direction is restricted, the center of the phase shaft 36a It can rotate around its axis. Accordingly, the circular spline 714 connected to the input side gear 73 can also rotate around the central axis of the phase shaft 36a. The input side gear 73 is also disposed at a position where the input side gear 73 can mesh with the shaft gear 211 disposed integrally with the shaft member 21.

  The flex spline 713 has a cup-shaped bottom surface portion connected to the output side gear 74. Since the output side gear 74 is inserted in the phase shaft 36a and is held in such a manner that the output side gear 74 is rotatable through a bearing and restricted in movement along the vertical direction, the center of the phase shaft 36a It can rotate around its axis. Accordingly, the flex spline 713 connected to the output side gear 74 can also rotate around the central axis of the shaft 36a. The output side gear 74 is disposed at a position where it can mesh with the correction gear 72.

  The correction gear 72 is disposed integrally with the lower portion of the phase gear 75 so as to be inserted into the shaft member 21, and can be rotated about the center axis of the shaft member 21. is there. The correction gear 72 has a function of correcting and adjusting a rotation ratio with the output side gear 74 caused by the rotation of the flex spline 713 of the wave gear 71.

  The phase gear 75 in which the correction gear 72 is integrally disposed is rotatable through the shaft member 21 at the upper and lower ends of the shaft gear 21 and moved along the vertical direction while being inserted into the shaft member 21. Is held in a restrained manner. The phase gear 75 is also disposed at a position where it can mesh with each of the table gears 24. Such a phase gear 75 rotates about its own axis, that is, around the central axis of the shaft member 21, thereby rotating each of the table gears 24 about the axis regardless of the rotation state of the rotating plate 20. be able to. As a result, the table 23 connected to the table gear 24 via the connecting member 23a also rotates around its axis. On the other hand, even if the phase gear 75 is stationary and fixed, when the rotating plate 20 rotates around the axis of the shaft member 21, each of the table gears 24 meshes with the phase gear 75 around the axis. Since the table 23 rotates in a state, each of the tables 23 rotates around its axis.

  FIG. 19 is an explanatory diagram for explaining the operation when a rotational driving force is applied from the main rotational driving source 22 in the phase angle imparting rotating device 12 having the above-described configuration. In FIG. 19, members that are operated by a rotational driving force applied by the rotational main drive source 22 are hatched. The operation of the phase angle imparting rotation device 12 will be described with reference to FIG.

  When the shaft member 21 rotates about its own axis, for example, clockwise when viewed from above, by the rotational driving force applied from the main rotational drive source 22, the rotating plate 20 connected to the shaft member 21 also rotates clockwise. Rotate in the direction. The clockwise rotational force of the shaft member 21, that is, the rotational driving force of the main rotational drive source 22 is transmitted from the shaft gear 211 to the input side gear 73 and the wave gear 71, and the input side gear 73 and the wave gear 71 The circular spline 714 is rotated counterclockwise.

  On the side of the wave gear 71, the phase rotation source 36 is stopped and fixed. Therefore, the phase shaft 36a connected to the phase rotation source 36 is fixed stationary. Therefore, the wave generator 711 connected to the phase shaft 36a by the cam 715 is also fixed stationary. is doing. The inner teeth of the circular spline 714 and the outer teeth of the flexspline 713 are engaged with each other at two contact points in the vicinity of the elliptical long axis of the cam 715 of the wave generator 711 that is stationary. In this state, the input side gear When the circular spline 714 rotates in the counterclockwise direction together with 73, the flex spline 713 also rotates in the counterclockwise direction around the center axis of the phase shaft 36a. The rotation of the flex spline 713 is transmitted to the output side gear 74 connected thereto, and the output side gear 74 rotates counterclockwise around its own axis, that is, the central axis of the phase shaft 36a.

  The rotation of the output side gear 74 is transmitted to a correction gear 72 disposed at a position where it can mesh with the output side gear 74, and the correction gear 72 is rotated clockwise around the central axis of the shaft member 21. The rotation of the correction gear 72 is transmitted as it is to a phase gear 75 provided integrally with the correction gear 72, and the phase gear 75 rotates clockwise around the central axis of the shaft member 21. That is, the clockwise rotational driving force of the main rotational driving source 22 is transmitted to the phase gear 75 to rotate the phase gear 75 in the clockwise direction. Here, the number of teeth of the shaft gear 211, the input side gear 73, the circular spline 714, the flex spline 713, the output side gear 74, and the correction gear 72 is N211, N73, N714, N713, N74, N72, respectively. Assuming that the angular velocity is w20 and the angular velocity of the phase gear 75 is w75, w75 = w20 × (N211 / N73) × (N714 / N713) × (N74 / N72). Therefore, the number of teeth of each gear is selected so that the angular velocity ratio α2 = (N211 / N73) × (N714 / N713) × (N74 / N72) is 1, and the phase gear 75 and the rotating plate 20 are set in the same direction. Rotate at the same angular velocity. As a result, the phase gear 75, the table gear 24 meshing with the phase gear 75, and the table 23 connected thereto rotate around the central axis of the shaft member 21 together with the rotating plate 20.

  When the rotation angle is given from the phase rotation source 36 when the table 23 is rotated integrally with the rotary plate 20 by the rotation driving force from the main rotation driving source 22 in this way, the phase angle giving rotation device 12 Behaves like

  FIG. 20 is an explanatory diagram for explaining the operation when the rotation angle is given from the phase rotation source 36 in the phase angle giving rotation device 12 having the above-described configuration. In FIG. 20, a member that relatively moves when a rotation angle is given by the phase rotation source 36 is hatched. For convenience of explaining the relative operation in FIG. 20, the description will be made assuming that the members not hatched are stopped.

  For example, the rotation angle θ 711 is applied from the phase rotation source 36 to the wave generator 711 constituting the wave gear 71 via the phase shaft 36 a in the clockwise direction as viewed from above. When the wave generator 711 rotates about its own axis in the clockwise direction by the rotation angle θ 711, the external teeth of the flex spline 713 and the circular spline 714 are on the axis whose major axis is the ellipse of the cam 715 of the wave generator 711. The inner teeth of the flex spline 713 are counterclockwise by the rotation angle of θ713 = θ711 × (N714-N713) / N713 in proportion to the difference in the number of teeth (N714-N713) from the circular spline 714. Rotate. Along with this, the output side gear 74 connected to the flexspline 713 also rotates counterclockwise by the same rotation angle θ713 as that of the flexspline 713.

  As the output side gear 74 rotates counterclockwise, the correction gear 72 rotates clockwise by the rotation angle θ72 = θ713 × N74 / N72. Here, N74 and N72 are the numbers of teeth of the output side gear 74 and the correction gear 72, respectively. As a result, the phase gear 75 provided integrally with the correction gear 72 rotates in the clockwise direction relative to the rotating plate 20 by the rotational angle θ72, and the rotational phase difference of only the rotational angle θ72 between them. Will occur. When the rotational phase difference is generated in this way, the table gear 24 that can mesh with the phase gear 75 rotates counterclockwise around the axis of the connecting member 23a by the rotation angle θ24 = θ72 × N75 / N24, that is, Rotate. Here, N75 and N24 are the numbers of teeth of the phase gear 75 and the table gear 24, respectively. As a result, the table 23 connected to the table gear 24 also rotates in the same direction as the table gear 24 by the same rotation angle θ24, and gives the inspection chip 100 a phase angle of the rotation angle θ24. Here, the rotation angle θ24 which is a phase angle given to the inspection chip 100 can be arbitrarily determined, and as described above, in proportion to the rotation angle θ711 of the wave generator 711 given from the phase rotation source 36, θ24 = θ711 × (N714-N713) / N713 × N74 / N72 × N75 / N24.

  In the phase angle imparting rotation device 12 according to the third embodiment of the present invention, the shaft member 21, the shaft gear 211, the input side gear 73, the wave gear 71, the output side gear 74, and the correction gear 72 are connected to the rotary plate 20 and the phase. Rotational drive transmission means for transmitting rotational drive force from the main rotational drive source 22 is configured to rotate the gear 75 in the same direction at the same angular velocity. Further, the phase shaft 36a, the wave gear 71, the output side gear 74 and the correction gear 72 constitute a rotation angle transmission means for transmitting a predetermined rotation angle given from the phase rotation source 36 to the phase gear 75 only by rotation. Yes.

  As described above, according to the phase angle imparting rotation device 12 according to the third embodiment of the present invention, the predetermined rotation angle given from the phase rotation source 36 is transmitted to the phase gear 75 through the rotation angle transmission means, As a result of causing a rotational phase difference between the rotating plate 20 and the phase gear 75, the table gear 24 meshed with the phase gear 75 rotates, and the inspection chip 100 held on the table 23 connected to the table gear 24 can be arbitrarily set. It can be rotated by the phase angle. Further, a predetermined rotation angle is transmitted from the phase rotation source 36 only by rotating the wave gear 71, the output side gear 74, the correction gear 72, and the phase shaft 36a that constitute the rotation angle transmission means around their own axis. . Since the phase rotation source 36 can provide rotation angles one after another without limitation in one direction, the rotation angle is transmitted to the inspection chip 100 held on the table 23 by successively transmitting the rotation angles by the rotation transmission means. It is possible to always give an arbitrary phase angle in one direction without limitation. Further, since the rotation angle can be given from the phase rotation source 36 finely and with high accuracy, the phase angle can be given to the inspection chip 100 with fine and high accuracy. Furthermore, since the rotation angle applied from the phase rotation source 36 can be made finer by adjusting the number of teeth of each gear element constituting the rotation angle transmission means, the inspection chip 100 is ultrafine and ultrahigh precision. Can be given a phase angle.

  The application of an arbitrary phase angle to the inspection chip 100 is performed through a rotation angle transmission unit different from the rotation drive transmission unit that transmits the rotation driving force of the main rotation drive source 22 to the rotary plate 20 and the phase gear 75. The rotation can be performed while the rotating plate 20 is rotating, regardless of the rotation speed or the rotation direction. Since it is not necessary to stop the rotation of the rotating plate 20 in order to change the direction and posture of the inspection chip 100, the liquid inside the inspection chip 100 that is moving in one direction due to the rotation diffuses in another direction when the rotation stops. There is no fear of it. Moreover, since the rotation of the rotating plate 20 is not stopped or started, the processing time can be shortened and noise and vibration can be reduced.

  Further, according to the phase angle imparting rotation device 12, the rotation main drive source 22 and the phase rotation source 36 can be installed outside the rotation area of the rotating plate 20, and the connection of the drive power source, the signal line, etc. is facilitated.

DESCRIPTION OF SYMBOLS 10, 11, 12 Phase angle giving rotation apparatus 20 Rotating plate 21 Shaft member 211 Shaft gear 22 Main rotational drive source 22a Main shaft 23 Table 23a Connecting member 23b Bearing member 24 Table gear 25 Transmission belt 30, 60, 70 Differential gear unit 31 Input side bevel gear 32 Output side bevel gear 33 Link gear 34 Pinion gear 35, 50, 75 Phase gear 36 Phase rotation source 36a Phase shaft 37 Phase bevel gear 40 Reverse rotation mechanism 41 Reverse rotation gear 42 Transmission belt 43 Intermediate gear 44 Main pulley 45 Slave pulley 60 Differential gear unit 61 Planetary gear 62 Carrier pulley 63 Sun gear 64 Internal gear 65 Transmission belt 70 Differential gear unit 71 Wave gear 711 Wave generator 712 Ball bearing 713 Flex spline 714 Circulation Spline 715 cam 72 corrected gear 73 input-side gear 74 the output side gear 100 test chip 101 inspection unit 110 Blood 110a blood cell 110b plasma components 111-115 reagent 116 washing solution P1 first pulley P2 second pulley P3 third pulley

Claims (4)

A rotating plate that supports a plurality of tables rotatably about its own axis;
A phase gear that meshes with a gear connected to each of the tables and rotates each of the tables around a central axis, and causing a rotational phase difference between the rotating plate and the phase gear, A phase angle giving and rotating device that rotates each of the tables to an arbitrary angle and gives a phase angle to a work held on the table,
Rotation drive transmission means for transmitting a rotation drive force from a main rotation drive source so as to rotate the rotation plate and the phase gear in the same direction at the same angular velocity;
A phase rotation source independently provided outside the transmission path of the rotational drive force by the rotational drive transmission means;
Rotation angle transmitting means for transmitting a predetermined rotation angle applied from the phase rotation source to the rotation plate or the phase gear only by rotation so as to generate a rotation phase difference between the rotation plate and the phase gear. A phase angle imparting rotation device comprising: The rotation drive transmission means and the rotation angle transmission means include a common differential gear unit,
The phase angle imparting rotation device according to claim 1, wherein the differential gear unit is configured by meshing a plurality of bevel gears.   The phase angle imparting rotation device according to claim 2, wherein the differential gear unit is configured by meshing a sun gear, a planetary gear, and an internal gear.   The phase angle imparting rotation device according to claim 2, wherein the differential gear unit is configured by meshing of a gear train composed of an internal gear and an external gear having different numbers of teeth.

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