JP5235780B2 - Louver opening and closing device - Google Patents

Description

  The present invention relates to an opening / closing device for a louver in a louver window which is provided in an opening of a window or the like in a building and performs light shielding, daylighting, ventilation, soundproofing, crime prevention and the like.

  Conventionally, as a louver window as described above, a plurality of louvers in which both end shafts are rotatably supported in the vertical frame on both sides of the window frame are arranged in parallel in the window frame, and these louvers are connected to a link mechanism. There is widely known a structure in which all the louvers are opened and closed at the same time by being linked so as to be linked together and by operating this link mechanism manually or electrically. Furthermore, in the above manual opening / closing operation of the louver, there is a problem that it is troublesome because the operation handle has to be rotated many times in order to fully open or close it. There is a problem that the louver cannot be opened and closed when the power supply from the power source is cut off, such as a power failure or battery exhaustion.

  For this reason, for example, as described in Patent Document 1, a louver window configured to open and close the louver manually or electrically has been developed. As an opening / closing device for the louver in the louver window, an electric motor is disposed on one side vertical frame of the window frame, and a worm is fixed to a rotating shaft of the electric motor, and an arm is projected to a worm gear meshed with the worm. The arm is connected to the link mechanism via a movable arm, and a manual handle mounting angular shaft is provided on the distal end surface of the worm.

  With this configuration, when the electric motor is operated, the worm gear meshed with the worm is rotated from the worm, and the link mechanism is operated via the arm by the rotation to open and close all the louvers at once. In addition, if the manual handle is connected to the square shaft protruding from the tip of the worm and is turned by hand, the worm can be rotated to open and close the louver in the same manner as described above.

Japanese Utility Model Publication No. 6-40873

  However, according to the louver opening and closing device configured as described above, in order to manually open and close the louver when the electric motor becomes inoperable due to a power failure or battery exhaustion, the louver is protruded from the front end surface of the worm. In addition to having to provide a separate storage area for this manual handle, it is necessary to connect the manual handle to the above-mentioned square shaft to rotate the manual handle. In order to enable this, a relatively wide space is required, and the opening / closing device cannot be disposed in the window frame, which may affect the installation of the louver window.

  In addition, since the manual handle is connected to the worm side fixed to the rotating shaft of the electric motor to open and close the louver, not only the electric motor may be overloaded but also broken, As described above, the operation handle must be rotated many times as described above to fully close it. In an emergency such as when a fire breaks out, the louver is opened and smoke is discharged smoothly. There is a problem that it can not be done. Furthermore, if the manual handle is lost, the manual opening / closing operation cannot be performed.

  Also, rather than turning the worm to open and close the louver, it is possible to quickly open and close the louver if any louver can be directly rotated manually by hand among a plurality of louvers arranged side by side in the window frame. However, even if the louver is directly rotated, the rotation transmission from the worm gear side to the worm cannot be performed because it is in a locked state.

  The present invention has been made in view of such problems, and its purpose is to enable smooth opening / closing operation by rotating the louver directly during manual operation as well as smooth opening / closing operation of the electric louver, and An object of the present invention is to provide a louver opening and closing device that can be compactly disposed within a vertical frame of a window frame.

  In order to achieve the above object, a louver opening and closing device according to the present invention includes, as described in claim 1, a plurality of shaft bodies in which both end shafts are rotatably supported in the vertical frames on both sides of the window frame. The louvers are arranged side by side, and these louvers are connected so as to be linked via a link mechanism, and the rotation of the motor disposed on the window frame is rotated through the meshing gear train and the rearmost gear of the meshing gear train. In the louver opening and closing device configured to transmit to the shaft body of one louver in the plurality of louvers to which the plurality of louvers are fixed, and to open and close all the louvers via the link mechanism, the meshing gear train is a rotating shaft of an electric motor. And a worm gear meshed with the worm, and an intermediate gear train comprising a plurality of gears sequentially meshed from the worm gear to the rearmost gear, Coupling the connection between the gears in the intermediate gear train, characterized in that there is provided a clutch mechanism for interrupting.

  In the louver opening and closing device configured as described above, the clutch mechanism may be configured such that one gear in the intermediate gear train rotates integrally with the gear, and an engagement groove is provided on the outer peripheral surface. A cylindrical boss portion, and a locking piece that is rotatably supported on the cylindrical boss portion and that engages and disengages with the engagement groove and meshes with a gear different from the gear. And an operation lever for engaging and disengaging the locking piece with the engaging groove.

  According to a third aspect of the present invention, there is provided a clutch mechanism having a structure different from that of the clutch mechanism, wherein an engagement protrusion projecting on a surface of one gear in the intermediate gear train, and a central axis of the gear. Engagement pieces that engage with and disengage from the engagement protrusions are integrally provided on the outer peripheral portion of the surface that faces the surface of the gear and is rotatably disposed in the axial direction. An engagement member formed by projecting an arm piece, and a gear that is supported by the arm piece of the engagement member so as to be slidable in the axial direction, and rotates integrally with the engagement member and is separate from the gear. And an operating lever that moves the engaging member in the axial direction to engage and disengage the engaging piece with the engaging protrusion of the gear.

  According to a fourth aspect of the present invention, there is provided a projecting piece that contacts a changeover switch piece of a sensor such as a micro switch that stops the motor at the fully open or fully closed position of the louver. It is characterized by.

  Furthermore, the invention according to claim 5 is a case in which a rod body that advances and retreats toward a vertical frame on one side of a window frame is provided on the back of one side of one louver in a louver arranged in parallel in the window frame. While the body is fixed, the base end portion of the manual handle for moving the rod body forward and backward by a left and right rotation operation is rotatably supported on the back of the case body. The wall surface is provided with a plurality of locking holes for removably engaging the tip of the rod body about the rotation axis of the louver.

  According to the first aspect of the present invention, the rotation of the electric motor is made up of a worm fixed to the rotating shaft of the electric motor, a worm gear meshed with the worm, and an intermediate gear train meshed with the worm gear. This is transmitted to the shaft body of one louver to which the last gear of this meshing gear train is fixed via the gear train, and the link mechanism connecting all the louvers from this shaft body is operated to move the louvers all at once. Since the rotation of the electric motor is decelerated by the meshing gear train, and the rotation torque is increased, the link mechanism is reliably operated, and all the louvers are rotated at the same time. The window can be opened and closed smoothly.

  Further, since the clutch mechanism for connecting and disconnecting the gears in the intermediate gear train is provided, the clutch mechanism is operated to operate the intermediate mechanism when the power is cut off, such as during a power failure. If the connection between the gears in the gear train is cut off, the worm and the worm gear lock function by releasing the connection between the last gear side fixed to the shaft body of one louver and the gear train on the electric motor side. Regardless of whether the electric louver window is turned on or off in an emergency such as the occurrence of a fire, the louver can be turned directly and manually without any load applied to the electric motor. Even if it cannot be opened and closed, the louver can be quickly opened and closed manually. In addition, after manually opening the louver window to a desired opening degree, the clutch mechanism is operated to connect the gears in the intermediate gear train so that the opening degree is locked. Can do. Further, a louver window in which the louver opening / closing device is compactly accommodated in the window frame can be configured by disposing the meshing gear train in a vertical frame on one side of the window frame while being accommodated in the gear case.

  According to the second aspect of the present invention, the clutch mechanism that cuts off the connection between the gears in the intermediate gear train rotates integrally with the gear in one gear in the intermediate gear train, and the engagement groove is formed on the outer peripheral surface. A cylindrical boss portion provided and a locking piece that is rotatably supported on the cylindrical boss portion and is engaged with and disengaged from the engagement groove, and a gear different from the gear is provided. Since it is composed of a meshing gear and an operation lever for engaging and disengaging the locking piece to and from the engaging groove, it is rotatably supported on the cylindrical boss portion of the gear having a cylindrical boss portion. If the locking piece protruding from the existing gear is locked in the engaging groove of the cylindrical boss portion, all the gears of the intermediate gear train are connected, and the louver can be opened and closed by the electric motor. On the other hand, the locking piece protruding on the gear by the operating lever and the cylindrical shape If the engagement with the engagement groove provided in the gear portion is released, the connection between the gears in the intermediate gear train can be instantaneously interrupted, and the last gear fixed to the shaft body of one louver The worm and the worm gear side fixed to the rotation side of the electric motor and the worm gear side are released, and the louvers are rotated manually and securely by rotating all the louvers simultaneously via the link mechanism, The louver window can be opened and closed smoothly.

  Further, according to the clutch mechanism of the third aspect, the engagement protrusion projecting from the surface of one gear in the intermediate gear train, and the shaft can move freely on the central axis of the gear and move in the axial direction. Engagement is formed by protruding an arm piece integrally provided with an engagement piece that engages and disengages the engagement protrusion at the tip of the outer periphery of the surface that faces the surface of the gear. A coupling member, a gear that is slidably supported in the axial direction on the arm piece of the engagement member, rotates together with the engagement member, and meshes with a gear different from the gear, Since the engaging member is moved in the axial direction and the engaging piece is engaged with and disengaged from the engaging protrusion of the gear, the engaging piece provided at the tip of the arm piece of the engaging member is If the intermediate gear train is engaged with the engaging protrusion protruding from the surface of the one gear, the intermediate gear In the event of an emergency, the engaging member is moved in the axial direction by an operating lever, and the end engaging piece of the arm piece is placed in the middle. By disengaging from the engaging projection protruding from the surface of the one gear in the gear train, the connection between the gears in the intermediate gear train can be cut off, and one louver can be directly rotated manually. The louver window can be opened and closed quickly.

  According to the invention of claim 4, a projecting piece that abuts a changeover switch piece of a sensor such as a microswitch that stops the motor at the fully open or fully closed position of the louver is provided on one gear in the intermediate gear train. Therefore, when the motor is used as an electric louver, it can be automatically stopped in a fully open state or a fully closed state by simply starting the electric motor.

  According to the invention of claim 5, the rod body that advances and retreats toward the one side vertical frame of the window frame is provided on the one side rear surface of one louver in the louver arranged in the window frame. While fixing the case body and supporting the base end portion of the manual handle for allowing the rod body to be advanced and retracted by a horizontal rotation operation on the back of the case body, A plurality of locking holes are provided in the inner wall for removably engaging the tip of the rod body around the rotation axis of the louver, so that the louver can be manually opened and closed by the mesh release mechanism. After that, by grasping the manual handle and rotating it in the front-rear direction, the louver attached with the case equipped with this handle can be easily rotated in the opening and closing direction, and all via the link mechanism of The bar can be opened at the same angle all at once, and the rod body is moved from the case body to the one side vertical frame side by rotating the manual handle in the left-right direction. The louver can be held in an open state at a desired angle by being locked in one of a plurality of locking holes provided in the inner wall surface of the one side vertical frame.

The simplified perspective view of a louver window. Simplified front view. The partial longitudinal section front view of the part provided with the louver opening and closing device. The partial vertical side view of a louver opening / closing apparatus. The longitudinal cross-sectional view of a clutch mechanism part. The longitudinal side view of the state which canceled the connection between the gears by a clutch mechanism. The side view of a link mechanism part. The simplified side view of the louver installed side by side. The perspective view of the handle | steering-wheel mounting part which opens and closes a louver manually. The rear view. The perspective view of a part of the state which has opened the louver manually. The perspective view of a part of the state which fixed the louver so that rotation was impossible. The longitudinal cross-sectional view which shows another structure of a clutch mechanism. The simplified exploded perspective view. The longitudinal side view of the state which canceled the connection between the gears by a clutch mechanism.

  A specific embodiment of the present invention will be described with reference to the drawings. The upper side frame material 1c and the lower side horizontal frame material 1d are integrated with each other between the upper end and the lower end of both side vertical frame members 1a and 1b having a certain length. Are connected to each other to form a front rectangular window frame 1, and a plurality of front horizontally long louvers 2 are arranged in the window frame 1 at regular intervals in the vertical direction. Both end shaft bodies 3a, 3b projecting horizontally outward from the center of both side end surfaces of the both side vertical frame members 1a, 1b by penetrating the opposite side wall plate portions and supporting them rotatably. A louver window A is formed. The vertical frame members 1a and 1b on both sides are made of a frame material having a U-shaped cross section, and the opening end that opens toward the outside thereof is detachably closed by a lid material 1e (shown in FIG. 3). It is formed in the hollow part.

  As shown in FIG. 8, each louver 2 is provided with engaging portions 2a and 2b at the upper end on the front surface and the lower end on the rear surface, and the lower end of the upper louver 2 in the louvers 2 and 2 adjacent vertically. In the state in which the joint portion 2b and the upper end engaging portion 2a of the lower louver 2 have a certain vertical width so that they engage with each other, and these upper and lower engaging portions 2a and 2b are engaged. The space between the upper and lower adjacent louvers 2, 2 is configured to be in a closed state in which the space is sealed.

  One shaft body 3a in all the louvers 2 rotatably supported by the one vertical frame member 1a is formed at the end portion protruding from the side wall plate portion of the vertical frame member 1a as shown in FIGS. 7, the base ends of the levers 4a are fixed, and the tips of the levers 4a of all the louvers 2 are rotatably connected to one longitudinal rectangular connecting rod 4b. These levers 4a And the connecting rod 4b constitutes a link mechanism 4 that opens and closes the louver window A by rotating all the louvers 2 simultaneously by moving the connecting rod 4b in the vertical direction.

  The louver window A is configured to be openable and closable both manually and electrically. As shown in FIGS. 3 and 4, the electrically operated opening and closing device controls the rotation of the electric motor 5 through the meshing gear train. The louver 2 is transmitted to the shaft body 3b on the other end side of one louver 2, and all the louvers 2 are simultaneously rotated from the shaft body 3b via the link mechanism 4 so that the louver window A is opened and closed. ing. The meshing gear train is secured to the worm 6 fixed to the rotating shaft 5a of the electric motor 5, the worm gear 7 meshed with the worm 6, and the shaft 3b on the other end side of the one louver 2 from the worm gear 7. The intermediate gear train 9 sequentially meshes with the rearmost gear 8. The intermediate gear train 9 includes a first gear 9 a meshed with the worm gear 7 and a second gear meshed with the first gear 9 a. 9b, a third gear 9c meshed with the second gear 9b, and a fourth gear 9d meshed with the third gear 9c. The fourth gear 9d meshes with the rearmost gear 8.

  The worm gear 7 includes a large-diameter worm gear 71 and a small-diameter worm gear 72 that are rotatably supported by a central shaft 73 thereof. The large-diameter worm gear 71 meshes with the worm 6 and the intermediate gear train 9 The first gear 9a and the second gear 9b are also composed of large-diameter gears 9a1 and 9b1 and small-diameter gears 9a2 and 9b2 that are rotatably supported by the central shafts 9a3 and 9b3, respectively. 9a1 is engaged with a small-diameter worm gear 72 that rotates integrally with the large-diameter worm gear 71 in the worm gear 7, the small-diameter gear 9a2 is engaged with the large-diameter gear 9b1 of the second gear 9b, and the small-diameter gear of the second gear 9b. 9b2 is meshed with the third gear 9c, and the rotation of the electric motor 5 is decelerated by these meshing gears and transmitted to the rearmost gear 8.

  The large-diameter gear 9a1 and the small-diameter gear 9a2 constituting the first gear 9a are integrally formed and rotate integrally on the central shaft 9a3, but the large-diameter gear constituting the second gear 9b. 9b1 and the small-diameter gear 9b2 are formed separately from each other, and the large-diameter gear 9b1 and the small-diameter gear 9b2 are connected to each other so as to be connected and disconnected by a clutch mechanism C described later.

  The electric motor 5 and the meshing gear train are housed in a gear case B. The electric motor 5 is mounted on the upper portion of the gear case B, and constitutes a worm gear 7 and an intermediate gear train 9. 9d is rotatably supported on the gear case B by respective center shafts 9a3 to 9d3, and the rearmost gear 8 is fixed to the shaft body 3b on the other end side of the one louver 2 protruding into the gear case B. doing. The gear case B is formed in a rectangular tube shape that can be stored in the hollow portion of the other vertical frame member 1b in the window frame 1, and is fixed to the upper portion of the vertical frame member 1b by screws or the like. The electric motor 5 is connected to a commercial power source via wiring (not shown), but a battery such as a dry cell may be used as a power source.

  In addition, the above-described electrically operated louver window opening / closing device manually turns the louver 2 in the event of a power failure in an emergency such as the occurrence of a fire, or when the electric motor 5 cannot be driven due to battery exhaustion. Even if it is attempted to open the louver window A, the worm gear 7 cannot be rotated from the worm gear 7 and is locked, so that the coupling between the gears of the intermediate gear train 9 is disconnected by the clutch mechanism C. Thus, the rotational force of the louver 2 manually is not transmitted to the worm gear 7 meshed with the worm 6.

  As shown in FIG. 5, the clutch mechanism C is integrally provided with a cylindrical boss portion 10 having an engagement groove 11 on the outer peripheral surface of a large-diameter gear 9b1 of the second gear 9b in the intermediate gear train. A small-diameter gear 9b2 of the second gear 9b is rotatably supported on the boss portion 10, and a locking piece 12 that can be engaged with and disengaged from the engaging groove 11 of the cylindrical boss portion 10 protrudes from the small-diameter gear 9b2. The engagement piece 12 is configured to be engaged with and disengaged from the engagement groove 11 by the operation lever 13.

  Specifically, a cylindrical boss portion 10 projects from the center portion of the large-diameter gear 9b1 in the second gear 9b, and the cylindrical boss portion 10 is supported integrally with the large-diameter gear 9b1 on the central shaft 9b3. The center portion of the small-diameter gear 9b2 is rotatably fitted on the base end portion of the cylindrical boss portion 10, that is, the connection portion with the large-diameter gear 9b1, and the large-diameter gear 9b1 A thin rod-shaped locking piece 12 having a fixed length that can be elastically bent and deformed in the inner and outer diameter directions in the same direction as the protruding direction of the cylindrical boss 10 is opposed to the second gear 9b. Thus, the operation lever 13 is supported on the lower rear portion of the gear case B so as to be able to advance and retract in the axial direction of the central shaft 9b3 of the second gear 9b.

  The engagement groove 11 provided on the outer peripheral surface of the cylindrical boss portion 10 is provided in two diametrically opposed manners in the cylindrical boss portion 10. Two locking pieces 12 are also provided opposite to each other in the diametrical direction. Three or more engaging grooves 11 are provided at predetermined intervals in the circumferential direction around the central shaft 9b3 in the second gear 9b. It is only necessary to provide locking pieces 12 corresponding to the respective engaging grooves 11.

  The locking piece 12 is formed at a locking end portion that bends the tip end inward and locks in the engagement groove 11, and has an inclined surface that inclines the outer surface inward from the base end toward the tip. The inner surface of the tip projection 13b of the arm portion 13a provided corresponding to each locking piece 12 in the operation lever 13 is pressed onto the inclined surface, and the tip projection 13b is engaged. The locking piece 12 is configured to be engaged with and disengaged from the engaging groove 11 by moving in the length direction of the stopping piece 12. Further, a coil spring 14 is interposed between the projecting portion 13b of the operating lever 13 and the gear case B in a compressed state. Under normal conditions, the projecting portion 13b is attached to the locking piece 12 by the force of the coil spring 14. It is located at the base end, and the locking piece 12 is bent inward to lock the locking end in the engaging groove 11.

  In addition, a sensor 15 such as a microswitch is disposed in the intermediate gear train 9 in the vicinity of the lower side of the fourth gear 9d, and the fourth gear 9d protrudes at a predetermined angular interval in the circumferential direction. The pieces 16a and 16b are provided in a projecting manner, and the projecting pieces 16a and 16b are brought into contact with the changeover switch piece 15a provided on the sensor 15 so that the louver window is fully opened and the electric motor 5 is stopped in the fully closed position. It is configured to make it.

  Further, one louver 2 in the plurality of louvers 2 arranged in parallel in the window frame 1, for example, on one side rear surface of the middle louver 2 as shown in FIG. 2, is shown in FIGS. As described above, a manual handle 17 for opening and closing the louver window A by manually rotating the louver 2 is provided. In detail, a rectangular frame-shaped hollow case body 18 having a vertical width substantially equal to the vertical width of the louver 2 is fixed to the back of one side of the louver 2, and the manual handle 17 is attached to the center of the back of the hollow case body 18. The base end portion (lower end portion) is supported so as to be rotatable in the left-right direction, and the louver 2 is gripped by the manual handle 17 projecting upward from the hollow case body 18 and rotated up and down in the front-rear direction. Is configured to open and close the louver window A.

  In addition, as shown in FIG. 10, a rod body 19 that moves forward and backward toward the one side vertical frame 1a of the window frame 1 is disposed in the hollow case body 18 so as to be slidable in the left-right direction. The rack 20 formed on the lower surface of the base end of the body 19 is fixed to a rotating shaft 17a projecting from the center of the base end of the manual handle 17 rotatably supported by the hollow case body 18. By engaging the sector gear 21 and rotating the manual handle 17 to the right in the figure, the tip of the rod body 19 protrudes from one side surface of the hollow case body 18, and one side of the window frame 1. It is configured to be detachably locked in a locking hole 22 formed in the inner wall surface of the vertical frame 1a. A plurality of the locking holes 22 are provided in the circumferential direction at regular angular intervals around the shaft body 3a of the louver 2 to which the hollow case body 18 is attached. Therefore, the opening degree of the louver window A can be adjusted by fixing.

  Next, the operation of the louver opening / closing device of the louver window A configured as described above will be described. Usually, the louver window A is used as an electric louver window by the operation of the electric motor 5, and all the louvers 2 are By rotating the shafts 3a and 3b up to the vertical direction with the shafts 3a and 3b as fulcrums and engaging the vertical engaging portions 2a and 2b of the adjacent louvers 2 and 2 as shown in FIG. When the electric motor 5 is driven by pushing a switch (not shown) from the state where the louver window A is fully closed, the rotation of the electric motor 5 changes the meshing gear train consisting of the worm 6 to the worm gear 7 and the intermediate gear train 9. The one louver 2 that is transmitted to the rearmost gear 8 and fixes the gear 8 to the shaft body 3b rotates and is fixed to the shaft body 3a on one side end side of the louver 2. Lever 4a rotates at the same time and Connecting rod 4b are vertically moved by the rotation, the other lever 4a of the louver 2 for connecting to the connecting rod 4b all the louver 2 is operated in unison to rotate in a direction to open the louvers window A.

  Thus, when the louver 2 is rotated in the horizontal direction until the louver window A is fully opened, the one projecting piece 16a projecting from the fourth gear 9d of the intermediate gear 9 becomes the switching switch piece 15a of the sensor 15. The electric motor 5 stops. In order for the louver window A to have a desired opening degree, the electric motor 5 may be stopped until the one projecting piece 16a of the fourth gear 9d comes into contact with the switching switch piece 15a of the sensor 15. When the electric motor 5 is driven from this state, it operates until the louver A is fully opened, that is, until the protruding piece 16a comes into contact with the switching switch piece 15a of the sensor 15. When the projecting piece 16a comes into contact with the switching switch piece 15a of the sensor 15, the electric motor 5 is stopped and switched to rotate in the reverse direction when it is operated next time.

  In order to close the louver window A from the fully opened state as described above, when the switch (not shown) is pressed, the electric motor 5 rotates in the opposite direction to the last through the meshing gear train. The one louver 2 that is transmitted to the gear 8 and fixed to the shaft body 3b rotates in the opposite direction, that is, in the standing direction, and this rotation causes the link mechanism 4 to pass through. All the louvers 2 rotate in a direction to close the louver window A all at once. Thus, when the louver 2 rotates in the upright direction until the louver window A is fully closed, the other projecting piece 16b projecting from the fourth gear 9d of the intermediate gear 9 becomes the switching switch piece of the sensor 15. The electric motor 5 stops in contact with 15a.

  Next, in order to manually open and close the louver window A by rotating the louver 2, first, the clutch mechanism C is operated by pulling the operation lever 13 provided on the back surface of the gear case B toward the second side. The connection between the large-diameter gear 9b1 and the small-diameter gear 9b2 in the gear 9b is cut off, and meshed with the worm 6 fixed to the shaft 3a of the louver 2 and the worm 6 fixed to the rotary shaft 5a of the electric motor 5. The connection with the worm gear 7 side is released, and the louver 2 can be manually rotated.

  Specifically, the operation lever 13 is pulled against the force of the coil spring 14, and the tip end protrusion 13b of the second gear 9b protrudes from the small-diameter gear 9b2. When moving on the inclined surface of the locking piece 12 from the side toward the downward inclined end, the locking piece 12 moves outward with its base end portion as a fulcrum by its elastic restoring force, and the distal end locking end The part is detached from the engaging groove 11 provided in the cylindrical boss part 10 of the large-diameter gear 9b1 in the second gear 9b. Then, the connection between the large diameter gear 9b1 and the small diameter gear 9b2 in the second gear 9b is released.

  While holding this state, the louver 2 is rotated in the front-rear direction by grasping or holding the manual handle 17 that is supported by the hollow case body 18 attached to the back of one side of the louver 2 so as to be able to turn left and right. When operated, the gear 8 fixed to the other shaft body 3b of the both end shaft bodies 3a, 3b of the louver 2 and the fourth gear 9d of the intermediate gear train 9 meshed with the gear 8 are electrically driven. The lever 4a fixed to one shaft body 3a of the louver 2 rotates integrally with the rotation of the louver 2 through the link mechanism 4 while idling without transmitting the rotational force to the motor 5 side. All the louvers 2 rotate all at once, and the louver window A opens and closes.

  Note that the louver window A is opened when the louver 2 stands up in the vertical direction, and when the manual handle 17 is pulled forward (rear), all the louvers 2 are bent down horizontally and the louver window A is opened. In this state, the manual handle 17 is kept tilted rearward. When the manual handle 17 is turned forward from this state, the louver 2 can be turned in the upright direction to close the louver window A.

  Further, the louver 2 is rotated as described above by operating the manual handle 17, and when the louver window A has a desired opening degree, the manual handle 17 is moved toward the one side vertical frame 1a side of the window frame 1. When the rotating operation is performed, the rod body 19 provided with the rack 20 in which the sector gear 21 fixed to the rotating shaft 17a of the manual handle 17 rotates integrally and meshes with the sector gear 21 is formed as a hollow case body. The louver window A is fixed with the above opening degree by moving from 18 toward the one side vertical frame 1a and inserting and locking the leading end portion into the locking hole 22 formed in the one side vertical frame 1a. Can hold. In this case, the window frame 1 is provided on one side vertical frame 1a so as to face the rod body 19 in the circumferential direction at a certain angular interval with the shaft body 3a of the locking hole 22 louver 2 as the center. Therefore, the opening degree of the louver window A can be adjusted by inserting and locking the distal end portion of the rod body 19 into the desired locking hole 22.

  Further, the louver window A is manually opened to a desired opening degree as described above without locking the tip end of the rod body 19 in the locking hole 22, and then the clutch mechanism. The C operating lever 13 is moved forward by the force of the coil spring 14, and the second gear is inserted into the engaging groove 11 provided in the cylindrical boss portion 10 integral with the large diameter gear 9b1 of the second gear 9b in the intermediate gear train. If the locking piece 12 protruding from the small-diameter gear 9b2 of the 9b is engaged, the lock function by the worm 6 and the worm gear 7 works and can be fixed by the opening degree. Can be opened at a desired degree of opening steplessly.

  In order to switch from manually opening and closing the louver window A to electrically opening and closing the louver window, the operating lever 13 is moved forward by the force of the coil spring 14 as described above, and the tip protrusion 13b is engaged with the locking piece 12 as described above. It is only necessary to return to the base end portion of the locking piece 12 on the inclined surface. The operation lever 13 is stopped at this position, for example, so that the arm portion 13a does not move further into the gear case B with respect to the gear case B inserted through and supported by the arm portion 13a of the operation lever 13. The arm 13a may be provided with a protrusion or the like for stopping the operation, and as described above during manual operation, the operation lever 13 is pulled toward the front so that the engagement between the engagement piece 12 and the engagement groove 11 is maintained. While the louver 2 is being rotated, even if the operating lever 13 is released while the locking piece 12 and the engaging groove 11 are locked, the operating lever 13 is held in that position. The distal end protruding portion 13b may be returned to the base end portion of the locking piece 12 by pulling the operating lever 13 slightly and then releasing it.

  FIGS. 13 to 15 show another embodiment of the clutch mechanism C. The clutch mechanism C is arranged on the surface of one gear in the intermediate gear train 9, for example, the large-diameter gear 9b1 in the second gear 9b. Engaging protrusions 31 projecting from the central shaft 9b3 at regular intervals in the circumferential direction, and the large-diameter gear 9b1 are disposed on the central shaft 9b3 so as to be rotatable and movable in the axial direction. And a disc-shaped engaging member formed by protruding an arm piece 33 integrally provided at the tip of an engaging piece 32 engaging and disengaging with the engaging protrusion 31 protruding from the large-diameter gear 9b1. 34, a small-diameter gear 9b2 in the second gear 9b that supports the arm piece 33 of the engaging member 34 so as to be slidable in the axial direction and rotates integrally with the engaging member 34, and the engaging member 34 is moved in the axial direction, and the engaging piece 32 is composed of an operating lever 30 that engages and disengages with the engaging protrusion 31 protruding from the large-diameter gear 9b1. It is.

  The disk-shaped engaging member 34 is composed of several rod-shaped arm pieces 33, 33 (two in the figure) at predetermined intervals in the outer circumferential portion of the surface facing the large-diameter gear 9b1. The arm pieces 33 and 33 are provided in an annular shape so as to protrude in parallel with the central axis 9b3, and the arm pieces 33 and 33 are integrally provided at the tips of the arm pieces 33 and 33. The insertion hole 36 provided in the center of the engaging member 34 is provided on the inner peripheral surface of the small-diameter gear 9b2 formed so as to be slidably engaged with the engaging grooves 35, 35. The shaft 9b3 of the gear 9b is slidably inserted.

  Further, a coil spring 37 is interposed between the engaging member 34 and the inner surface of the gear case B in a compressed state. Under normal conditions, the engaging piece 32 of the engaging member 34 is moved by the force of the coil spring 37. The large-diameter gear 9b1 is engaged with the engaging protrusion 31 and the large-diameter gear 9b1 is connected to the small-diameter gear 9b2 via the engaging member.

  The operation lever 30 is inserted and supported in the lower part of the back surface of the gear case B so as to be movable in the front-rear direction, and an engagement claw portion 30a engaged with the inner surface of the engagement member 34 at the distal end of the operation lever 30. Is protruding. Since other structures are the same as those in the above embodiment, the same parts are denoted by the same reference numerals and detailed description thereof is omitted.

  With this configuration, in order to manually rotate the louver 2 to open and close the louver window A, if the operating lever 30 is pulled forward against the force of the coil spring 37, as shown in FIG. The engaging member 32 is retracted and the engaging piece 32 provided at the tip of the arm piece 33 is disengaged from the engaging protrusion 31 protruding from the large-diameter gear 9b1 in the second gear 9b, and the second gear 9b. The connection between the large-diameter gear 9b1 and the small-diameter gear 9b2 is released.

  While holding this state, the louver 2 is rotated in the front-rear direction by grasping or holding the manual handle 17 that is supported by the hollow case body 18 attached to the back of one side of the louver 2 so as to be able to turn left and right. When operated, the gear 8 fixed to the other shaft body 3b of the both end shaft bodies 3a, 3b of the louver 2 and the fourth gear 9d of the intermediate gear train 9 meshed with the gear 8 are electrically driven. The lever 4a fixed to one shaft body 3a of the louver 2 rotates integrally with the rotation of the louver 2 through the link mechanism 4 while idling without transmitting the rotational force to the motor 5 side. All the louvers 2 rotate all at once, and the louver window A opens and closes.

  Further, in order to switch from manual opening / closing of the louver window A to electric opening / closing of the louver window, the operating lever 30 is moved forward by the force of the coil spring 37, so that the engaging member 34 is moved forward integrally. The engagement piece 32 provided at the tip of the piece 33 is engaged with the engagement protrusion 31 protruding from the large-diameter gear 9b1 in the second gear 9b. Then, the large-diameter gear 9b1 and the small-diameter gear 9b2 in the second gear 9b are connected, and the rotational force of the electric motor 5 is fixed to the shaft 3b of the louver 2 from the worm 6 fixed to the electric motor 5. 8 is transmitted to the louver 2 having the rearmost gear 8 through the meshing gear train reaching 8, and all the louvers 2 are simultaneously rotated through the link mechanism 4 to open and close the louver window A. Can do.

A louver window B gear case C clutch mechanism 1 window frame 2 louver 4 link mechanism 5 electric motor 6 worm 7 worm gear 8 last gear 9 intermediate gear train
10 Cylindrical boss
11 Engagement groove
12 Locking piece
13 Control lever

Claims (5)

  In the window frame, a plurality of louvers in which both end shafts are rotatably supported by the vertical frames on both sides of the window frame are arranged side by side, and these louvers are connected to each other via a link mechanism. The rotation of the motor disposed on the window frame is transmitted to the shaft body of one louver of the plurality of louvers to which the gear at the rearmost portion of the meshing gear train is fixed via the meshing gear train, and via the link mechanism. In the louver opening and closing device configured to open and close all the louvers, the meshing gear train includes a worm fixed to the rotating shaft of the electric motor, a worm gear meshed with the worm, and the worm gear to the rearmost gear. It comprises an intermediate gear train composed of a plurality of gears that are sequentially meshed, and further provided with a clutch mechanism for connecting and disconnecting the gears in the intermediate gear train. Louvers switchgear characterized.   The clutch mechanism is a single gear in the intermediate gear train that rotates integrally with the gear and has an outer peripheral surface provided with an engaging groove, and is rotatably supported on the cylindrical boss. And a gear engaging with a gear different from the gear, and an operating lever for engaging and disengaging the locking piece with the engaging groove. The louver opening and closing device according to claim 1, comprising:   The clutch mechanism is disposed on the surface of one gear in the intermediate gear train, and is disposed on the central axis of the gear so as to be rotatable and movable in the axial direction. An engaging member formed by projecting an arm piece integrally provided with an engaging piece that engages and disengages the engaging protrusion at the tip on the outer peripheral portion of the surface facing the surface of the gear, and an arm of the engaging member A gear that is slidably supported by the piece in the axial direction and rotates integrally with the engagement member and meshes with a gear different from the gear, and the engagement member is moved in the axial direction. The louver opening and closing device according to claim 1, further comprising an operation lever that engages and disengages the engagement piece with the engagement protrusion of the gear.   A projecting piece that abuts a changeover switch piece of a sensor such as a microswitch that stops the motor at a fully open or fully closed position of the louver is provided on one gear in the intermediate gear train. The louver opening and closing device according to claim 2 or claim 3.   A case body provided with a rod body that advances and retreats toward the vertical frame on one side of the window frame is fixed to the back surface of one louver of the louvers arranged side by side in the window frame. While supporting the base end of the manual handle that moves the rod body forward and backward by a turning operation in the left and right directions, the inner wall of the vertical frame on one side of the window frame is centered on the rotation axis of the louver. The louver opening and closing device according to claim 1, wherein a plurality of locking holes for removably engaging the tip of the rod body are provided.

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