JP2001223962A - Rotary electronic equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the increase of the load of unlocking by a lock member due to the dead weight of an electronic equipment main body when trying to unlock the electronic equipment main body in the state of locking it in a housing posture. SOLUTION: On a ceiling 40 in a vehicle, a housing recess part 40b for housing the electronic equipment main body 1 is provided. In the part 40b, the main body 1 is provided rotatably and a locking means 20 for locking the main body 1 when it is housed in the part 40b is provided. The means 20 is provided with the locking member, and the main body 1 is provided with an engaging recess part at a position opposing the locking member. On unlocking the main body 1 from the housing state, the main body 1 is rotated to the side of the ceiling 40 temporarily and then, the locking member is pulled out from the engaging recess part. Thus, the locking member is removed from the main body 1 by a low load.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating electronic device used as, for example, a monitor for a vehicle, and more particularly to a rotating electronic device which can be locked in a predetermined rotating posture.

[0002]

FIG. 4 is a perspective view showing a conventional rotary electronic device 30. As shown in FIG. FIG. 5 is a partially enlarged cross-sectional view showing a state in which the electronic device main body 31 of the rotary electronic device 30 is locked.

[0003] The rotary electronic device 30 is provided with an electronic device main body 31 in which a liquid crystal display monitor is incorporated, and the electronic device main body 31 is installed on a ceiling 40 in an automobile. The electronic device main body 31 is rotatably supported on a ceiling 40 by a rotating shaft 32.
Is provided with a motor for rotationally driving the motor.

When the electronic device main body 31 is used, when the electronic device main body 31 is used, the electronic device main body 31 is turned downward as shown by a solid line in FIG.
When not in use, the motor is rotated upward by the power of the motor as shown by the dotted line in FIG.

As shown in FIG. 5, a lock means 35 for locking the electronic device main body 31 when the electronic device main body 31 is in the storage position is provided on the ceiling 40 side.
The electronic device main body 31 is configured to hold the storage posture. An engaging recess 34 is provided at the distal end 33 of the electronic device body 31.
The locking means 35 is provided with the engaging recess 3.
4 and the claw 36 facing the engaging recess 3
An actuator such as a solenoid mechanism which is inserted into and removed from the actuator 4 is provided. Electronic device body 31 is ceiling 40
When the electronic device main body 31 is used, the claw portion 36 is inserted into the engaging concave portion 34 to lock the electronic device main body 31.
6 is removed from the engaging recess 34, and the electronic device main body 31 can be rotated downward.

[0006]

However, in the rotary electronic device 30, when the electronic device main body 31 is in the storage position shown in FIG. 4, the distal end portion 33 may rotate downward by its own weight. In particular, in the case of a vehicle-mounted device, the electronic device main body 31 is easily rotated in the direction of gravity due to vehicle body vibration. In such a case, as shown in FIG. 5, the upper wall surface 34a in the engaging recess 34 may ride on the upper surface 36a of the claw portion 36, and the weight of the electronic device main body 31 may act on the upper surface 36a.

At this time, when the actuator is operated to release the lock, a problem is likely to occur in that the claw portion 36 does not fall out of the engaging concave portion 34 due to friction with the engaging concave portion 34. In this case, the lock cannot be released, and the electronic device main body 31 cannot be rotated to the use state.

In the case where rattling occurs in the rotating portion of the base of the electronic device main body 31, the electronic device main body 31 after rotating to the storage position is moved by the amount of rattling in the direction of gravity. It can rotate freely. Therefore, the weight of the electronic device main body 31 acts on the claw portion 36 at the time of unlocking, and it is difficult to pull out the claw portion 36 from the engaging concave portion 34. Also, even if the claw portion 36 can be pulled out, immediately after the claw portion 36 is pulled out and before the motor is started, the electronic device main body 31 rotates in the direction of gravity from the locked position and rotates. Phenomenon occurs. Furthermore, if there is a time interval between the release of the lock and the start of the motor, the electronic device main body 31 causes the rattling phenomenon due to the rattling due to the vibration of the vehicle body or the like.

The electronic device body 3 in the storage position as described above
If the rotation supporting portion at the base end of the first unit 1 is rattled, the storage position is not stabilized immediately after the lock is released as described above, and the appearance becomes very poor.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and can prevent the claw portion from falling out of the engaging concave portion to prevent the electronic device main body from opening, and further prevent the electronic device main body from fluttering when opened. It is an object of the present invention to provide a rotary electronic device.

[0011]

According to the present invention, there is provided an apparatus main body having a first attitude rotated in the direction of gravity and a second attitude rotated in the direction opposite to the direction of gravity, and the apparatus main body having at least the first attitude. A rotation drive source for rotating in the direction of the second posture;
A lock member that locks the device main body that has been rotated to the posture of the electronic device, wherein the lock member is opposed to the device main body from the direction of gravity when the device is hooked on the device main body. And the second portion
When releasing the lock of the device body in the posture of, the control unit that gives a command to the rotation drive source to rotate the device body in the direction opposite to the direction of gravity, and removes the lock member from the device body. It is characterized by being provided.

In the above, the device main body is provided with a hooking concave portion facing the lock member in the second posture, and the actuator is configured to move the lock member forward and backward to be inserted into and pulled out of the hooking concave portion. For example, the engaging recess is provided at the tip of the device main body when the rotation fulcrum side of the device main body is used as a base end.

[0013] For example, the second position is a stored state where the device main body is not used, and the first position is a used state of the device main body. In this case, the device main body is a monitor for in-vehicle use, a rotation axis of the device main body is provided on a ceiling in the vehicle, and the monitor can be viewed in the vehicle in the first posture, In this posture, the monitor can be in a posture substantially parallel to the ceiling.

In the present invention, when the lock member is removed from the device main body, preferably immediately before the lock is released, the device body in the second posture is further forcibly rotated in the direction opposite to the gravity.
Therefore, at this time, even if the device main body rides on the lock member by its own weight, the self-weight acting on the lock member by the rotation can be removed, and the lock of the lock member can be reliably released.

When the main body in the second position has a wobble of rotation, a rotating force is applied to the main body by the motor in a direction opposite to its own weight.
By being pushed further upward from the posture of
The rattling is absorbed. Therefore, immediately after the lock of the lock member is released, it is possible to prevent a phenomenon in which the device main body is rotated by its own weight in the direction of gravity by the amount of the rattling, and fluttering occurs due to body vibration or the like.

The device body may be turned in the direction opposite to the gravity at the same time as the lock member is unlocked, or the device body may be turned in the direction opposite to the gravity immediately after the lock member is unlocked. May be.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a side view for explaining a rotary electronic device of the present invention and its operation, and FIGS. 2A and 2B are sectional views showing the operation of a lock member. Is locked,
FIG. 3B is a block diagram showing the unlocked state, and FIG. 3 is a block diagram showing the rotary electronic device of the present invention.

The electronic device main body 1 of the rotary electronic device 10 of the present invention incorporates a liquid crystal type monitor 1a, and is attached to, for example, a ceiling 40 in an automobile. The ceiling 40 has a projection 40a projecting downward, and a storage recess 40b is formed in the projection 40a. The storage recess 40b is formed to be substantially the same as the external dimensions of the electronic device main body 1, and the entire electronic device main body 1 is stored at the time of storage. Further, when the electronic device main body 1 is stored, it is preferable that a downward surface of the electronic device main body 1 and a lower surface of the convex portion 40a be substantially the same surface or a surface that is continuous with each other.

The storage recess 40b is provided, for example, in a ceiling between a driver's seat and a passenger's seat in a car, a ceiling on a driver's seat side, a ceiling in a rear seat, and the like.

A pair of mounting pieces 2 facing each other in a direction perpendicular to the plane of FIG. 1 are fixed inside the storage recess 40b. A pair of rotation shafts 2a are fixed to both side surfaces of the base end of the electronic device body 1, and the rotation shafts 2a are rotatably supported by the mounting pieces 2. Therefore, the rotating shaft 2a
The electronic device main body 1 is rotatable in the W direction, that is, the direction of gravity and the direction opposing gravity, with the fulcrum as a fulcrum.

As a result, when not in use, the electronic device main body 1 is rotated to the second posture 1A shown by the solid line in FIG. 1, and is housed in the housing recess 40b. At the time of use, it rotates in the direction of gravity as shown in FIG.
, And the display surface of the monitor 1a is turned to the inside of the vehicle.

The storage recess 40b is provided with a locking means 20 facing the tip of the electronic device body 1. FIG.
As shown in (1), the lock means 20 is housed in a convex portion 40a formed on the ceiling 40, and includes a lock member 6 and an actuator 7. The lock member 6 is formed of a magnetic material such as iron, and functions as a plunger. Further, a claw portion 6a is integrally formed at the tip of the lock member 6, and is capable of moving toward and away from the tip portion 1b of the electronic device main body 1.

The actuator 7 is constituted by, for example, a solenoid mechanism, and a coil 8a for magnetically attracting the lock member 6 acting as the plunger, a magnetic core around which the coil 8a is wound, and an integral part of the magnetic core. A rear facing core 8c for sucking a rear end portion of the lock member 6
And so on. A coil spring 8b is provided for pushing the lock member 6 toward the electronic device main body 1 when the solenoid is not excited.

The claw 6a may be formed integrally with the tip of the lock member 6 made of a magnetic material, or the claw 6a may be formed by coating the periphery of the lock member 6 with a resin or the like. You may. Alternatively, a claw 6a made of resin or the like may be fixed to the tip of the lock member 6 made of the magnetic material.

An engaging recess 4 is provided at the tip 1b of the electronic device main body 1, and a claw 6a at the leading end of the lock member 6 can be inserted into the engaging recess 4.

At the base end of the electronic device main body 1, a partial gear 11a having a predetermined pitch circle is integrally provided. A motor 11c is provided in the housing recess 40b, and a pinion gear 11b is provided to transmit the power of the motor 11c at a reduced speed. This pinion gear 11b meshes with the partial gear 11a.

As shown in FIG. 3, the rotary electronic device 10
Has a control unit 12 including a CPU and a memory in which a program is stored, a motor driver 13, and a solenoid driver 14, and is provided with an operation unit 15 for giving an operation instruction to the control unit 12. I have. The operation unit 15 is an operation button provided on the electronic device main body 1 or an operation button provided on a lower surface of the ceiling 40 or the like. Alternatively, the operation unit 15 may be a remote controller that performs transmission using infrared rays. In this case,
A control instruction signal is provided to the control unit 12 from a receiving device that receives an infrared signal.

Next, the operation of the rotary electronic device 10 will be described. In a state where the electronic device main body 1 is stored in the ceiling 40, as shown in FIG.
Is the second posture 1A that has been rotated upward in the opposite direction to gravity.
And is housed in the housing recess 40b. At this time, the actuator 7 of the lock means 20 is in a non-excited state, the lock member 6 is pushed out by the urging force of the coil spring 8b, the claw portion 6a is inserted into the engaging recess 4, and the electronic device body 1 is locked. .

When the electronic device main body 1 is operated by operating the operation unit 15 in the housed state, first, a command is given from the control unit 12 to the motor driver 13, and the motor 11c is operated. It is driven for a short time. The rotation direction of the motor 11c at this time is a direction for rotating the electronic device main body 1 in a direction opposite to gravity. The power of the motor 11c is given from the pinion gear 11b to the partial gear 11a,
As shown by reference numeral 1C in FIG. 1, the electronic device main body 1 is once turned to the ceiling 40 side.

Immediately thereafter, a control signal is given from the control section 12 to the solenoid driver 14 so that the locking means 20
Of the lock member 6 is excited.
a is pulled out of the engaging recess 4.

After the lock member 6 is pulled out by the excitation of the actuator 7, the operation command is given from the control unit 12 to the motor driver 13, and the motor 11c is started again. By the power of the motor 11c at this time, the electronic device main body 1 is turned in the direction of gravity, the electronic device main body 1 is turned to the first posture 1B shown in FIG. 1, and the screen of the monitor 1a faces forward. Can be

When a switch (not shown) detects that the electronic device main body 1 has turned to the 1B position, the control unit 12 gives a motor stop instruction to the motor driver 13.

As described above, when the lock by the lock member 6 is released, the main body 1 of the electronic device is rotated by the motor 11c in the direction opposite to the gravity. It will surely be separated from the upper surface 6c. Therefore, the electronic device main body 1 is placed on the upper surface 6c of the claw portion 6a.
No self-weight acts on the lock member 6, and no excessive resistance acts on the lock member 6 when the lock member 6 is pulled out from the engaging recess 4. Therefore, the lock member 6 is not reliably removed from the engagement recess 4 and the lock cannot be released. Further, even if the driving force of the actuator 7 is small, the unlocking can be surely released, and the solenoid mechanism of the actuator 7 can be downsized.

Further, the backlash between the pinion gear 11b and the partial gear 11a, the operation of the rotor and the output shaft in the motor 11c, and the operation of the output shaft cause the rattling of the electronic device body 1 when the motor 11c is stopped. Free rotation margin)
May have occurred. In such a case, if a rotational force in the direction of lifting the electronic device main body 1 is applied to the motor 11c before the lock is released as described above, the rattling can be removed (absorbed). . Therefore, when the lock member 6 is pulled out, the electronic device main body 1 does not freely rotate in the direction of gravity from the posture of 1A or 1C shown in FIG. Problems such as instantaneous rotation and rattling due to vehicle vibration do not occur.

Next, when the electronic apparatus body 1 is changed from the use state of the first posture 1B shown in FIG. 1 to the housed state, an instruction is given from the control unit 12 to the motor driver 13 by operating the operation unit 15. The electronic device main body 1 is rotated from the state shown by reference numeral 1B to the state shown by reference numeral 1A by the power of the motor 11c. When it is detected by a switch or the like (not shown) that the electronic device main body 1 has reached the second posture 1A housed in the housing recess 40b, an instruction is given from the control unit 12 to the solenoid driver 14, and the actuator 7 is actuated. Are de-energized, the lock member 6 protrudes by the urging force of the coil spring 8b, the claw portion 6a enters the engaging concave portion 4 of the electronic device main body 1, and the electronic device main body 1 is again in the locked state.

At this time, a tapered taper 6b is formed on the lower surface of the claw portion 6a. Therefore, even if the excitation of the actuator 7 is released before the electronic device main body 1 completely rotates upward, the tip 1b of the electronic device main body 1 that rotates upward by the power of the motor 11c hits the taper 6b. The contact makes it possible to push the lock member 6 back once against the urging force of the coil spring 8b. Therefore, when the electronic device main body 1 is completely rotated upward, the claw portion 6 a of the lock member 6 can reliably enter the engaging concave portion 4.

However, when the electronic device main body 1 is in the storage posture, the power is continuously applied to the motor 11c, and the state in which the electronic device main body 1 is pressed into the storage recess 40b as shown by 1C in FIG. 1 is continued. During this time, the actuator 7 can be de-energized to control the lock member 6 to be surely inserted into the engaging recess 4.

[0038]

As described above, according to the present invention, it is possible to prevent the self-weight of the electronic device main body from acting on the lock member and causing a lock release failure. Further, when there is backlash in the electronic device main body, it is possible to prevent the electronic device main body from lowering by the amount of the backlash immediately after the lock member is unlocked, thereby causing rattling.

[Brief description of the drawings]

FIG. 1 is a side view illustrating the operation of a rotary electronic device according to the present invention;

FIGS. 2A and 2B are cross-sectional views illustrating a relationship between a lock unit and an electronic device main body, wherein FIG.

FIG. 3 is a block diagram schematically showing a circuit configuration of the rotary electronic device of the present invention.

FIG. 4 is a perspective view showing a usage form of the rotary electronic device.

FIG. 5 is an explanatory view showing a problem of the conventional rotary electronic device,

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electronic device main body 1a Monitor 1b Tip part 1A 2nd attitude 1B 1st attitude 2 Mounting piece 4 Engagement recess 6 Lock member 6a Claw 7 Actuator 8a Coil 8b Coil spring 11a Partial gear 11b Pinion gear 11c Motor 12 Control unit 13 Motor Driver 14 Solenoid driver 15 Operation unit 20 Locking means

Claims (5)

[Claims] An apparatus main body having a first attitude rotated in a direction of gravity and a second attitude rotated in a direction opposite to the direction of gravity, and rotating the apparatus main body at least in the direction of the second attitude. A rotation drive source for rotating the electronic device, and a lock member for locking the device main body rotated to the second position, wherein the lock member is locked when the device main body is locked. The device has a portion facing the device body from the direction of gravity, and when unlocking the device body in the second posture,
A rotary electronic device, comprising: a control unit for giving a command to the rotation drive source to rotate the device main body in a direction opposite to the direction of gravity and to remove the lock member from the device main body. machine. 2. The device main body is provided with an engaging concave portion facing the lock member in the second posture, and an actuator is provided for moving the lock member forward and backward to insert and remove the engaging concave portion. The rotating electronic device according to claim 1, wherein 3. The rotary electronic device according to claim 2, wherein the engaging concave portion is provided at a distal end of the device main body when a rotation fulcrum side of the device main body is a base end. 4. The rotary electronic device according to claim 1, wherein the second posture is a storage state where the device main body is not used, and the first posture is a use state of the device main body. . 5. The device main body is a monitor for mounting on a vehicle, a rotation axis of the device main body is provided on a ceiling in the vehicle, and the monitor can be viewed in the vehicle in the first posture. 5. The rotating electronic device according to claim 4, wherein the monitor is in a posture substantially parallel to the ceiling in the second posture.