JP2014109313A - Rotation regulation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotation regulation device which can be fixed at an arbitrary angle, which reduces generation of a sound during a rotational operation, and which can prevent a breakage in an engagement part.SOLUTION: A rotation regulation device 40 includes a sun gear 41, a planetary gear 42, an arm 43, and a fixed gear 44. The sun gear 41 and the planetary gear 42 are rotated in such a manner as to interlock with rotation of a touch panel 2, and the arm 43 is rotated on a rotating shaft 21. Thus, the planetary gear 42 moves to a position away from the fixed gear 44 and an engagement position to enable the rotation regulation and release of the touch panel 2.

Description

  The present invention relates to a rotation restricting device capable of restricting the rotation of a member provided to be rotatable.

  2. Description of the Related Art Conventionally, some information display units of electronic devices can be held at an arbitrary angle that is easy for a user to visually recognize. As shown in Patent Document 1, a ratchet gear and an engaging claw are provided, and the engagement of the engaging claw with the ratchet gear restricts the rotation of the information display device in one direction. Some can be held at any angle. However, in order to return the information display device to the storage position, it is necessary for the user to perform a button operation in order to retract the engaging claw from the ratchet gear, and the operability is low.

  On the other hand, in Patent Document 2, by providing a shutter in addition to the ratchet gear and the engaging claw, when the information display device is rotated by a predetermined angle or more, the shutter enters between the engaging claw and the ratchet gear, The pawl is retracted from the ratchet gear. Some information display devices can be rotated in the storage direction, and a user can fix and release the information display device without performing a separate button operation or the like.

JP 2007-164331 A JP 2010-36439 A

  However, in the above-described prior art, the engagement claw is engaged with the ratchet gear so that the rotation of the information display device is restricted in one direction. When you get over the gear teeth, noise will be generated and the quality will deteriorate. Further, after the information display device is fixed at an arbitrary angle, a large tooth skipping sound is generated when the engaging claw gets over the teeth of the ratchet gear when it is pushed in with a strong force in the storing direction. Moreover, since a big stress generate | occur | produces in a ratchet gear and an engaging claw, there exists a possibility of damaging.

  Therefore, the present invention provides a rotation restricting device that can be fixed at an arbitrary angle, and that can reduce the generation of sound during a turning operation and can prevent the engagement portion from being damaged. For the purpose.

In order to achieve the above object, the rotation restricting device of the present invention comprises:
A rotation restricting device for a device having a rotating member rotatable about a rotating shaft, the first rotating body rotating in conjunction with the rotation of the rotating member, and supported rotatably about the rotating shaft. An arm, a second rotating body provided on the arm that rotates in conjunction with the rotation of the first rotating body, a first stopper that restricts the rotation of the arm, and the second rotation. A restricting portion for restricting rotation of the second rotating body by contacting the body, and the arm rotates in conjunction with the first rotating body. When the rotating member rotates in a predetermined direction, the second rotating body and the regulating portion are separated from each other in conjunction with the rotation of the first rotating body. The arm rotates in the direction of the first direction, and the first stopper moves the arm in the first direction. When the rotation is restricted and the rotation of the arm is restricted by the first stopper, the arm does not rotate in conjunction with the rotation of the first rotating body, and the second rotating body idles. When the rotating member rotates in the direction opposite to the predetermined direction, the second rotating body and the restricting portion come into contact with the rotation of the first rotating body. The arm rotates in a direction.

  According to the present invention, there is provided a rotation restricting device that can be fixed at an arbitrary angle, and that can reduce the generation of sound during a rotating operation and prevent damage to an engaging portion. It becomes possible.

External perspective view of a printer according to the present invention The perspective view which showed the relationship between the touch panel of the printer which concerns on this invention, and a rotation control apparatus. Exploded perspective view of rotation restricting device Side view for explaining the operation of the rotation restricting device Side view for explaining the operation of the rotation restricting device Side view for explaining the operation of the rotation restricting device Side view for explaining the operation of the rotation restricting device

Example 1
Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  1A and 1B are external perspective views of a printer according to an embodiment of the present invention. The printer in this embodiment will be described by taking a printer having a touch panel as an information display device as an example.

  As shown in FIG. 1A, 10 is a printer body, 20 is a touch panel disposed on the surface of the information display unit, and 30 is an operation button.

  In the printer main body 10 according to the present exemplary embodiment, an image to be printed, image processing information, and the like are displayed on the touch panel 20, a print image is selected by operating the touch panel 20 or the operation button 30, and the image is appropriately processed and printed. be able to.

  The touch panel 20 is rotatably held by a rotation restricting device 40 which will be described later, and can be fixedly held at, for example, the position shown in FIG. Can be improved.

  FIG. 2 is a perspective view showing the relationship between the touch panel 20 and the rotation restricting device 40 in this embodiment. The rotation restricting device 40 is disposed on both side surfaces of the touch panel 20. The touch panel 20 is held so as to be rotatable about a rotation shaft 21, and the rotation shaft 21 is supported by bearing portions of an inner case 46 and an outer case 47 of the rotation restriction device 40.

  In the present embodiment, the rotation restricting devices 40 are arranged one by one on the left and right sides of the touch panel 20, but may be one on one side.

  3A and 3B are exploded perspective views of the rotation restricting device 40 in the present embodiment.

  The rotation restricting device 40 is configured to be held by an inner case 46 and an outer case 47.

  Reference numeral 41 denotes a sun gear, and the sun gear 41 is a rotating body that has a plurality of teeth around a rotation center that is rotatably held around the rotation shaft 21. The sun gear 41 rotates in conjunction with the rotation operation of the touch panel 20. The sun gear 41 has an arm portion 411 and a protruding portion 412.

  42 is a planetary gear, and 43 is an arm. The arm 43 is supported so as to be rotatable about the rotation shaft 21. The planetary gear 42 is a rotating body having a plurality of teeth around the rotation center, which is rotatably held by the bearing portion 431 of the arm 43. The planetary gear 42 is in a meshed position with the sun gear 41. Since the torque is set so that the force required to rotate the planetary gear 42 is larger than the force required to rotate the arm 43, the sun gear 41 is interlocked with the rotation and the planetary gear 42 is When rotating, the arm 43 rotates around the rotation shaft 21 in conjunction with the planetary gear 42.

  Reference numeral 44 denotes a fixed gear, and the fixed gear 44 is a rotating body having a plurality of teeth around the center of rotation that is held on the shaft portion 471 of the outer case 47 so as not to rotate below a certain torque. The fixed gear 44 functions as a restricting portion that restricts the rotation of the planetary gear 42 by contacting the planetary gear 42.

  45 is a cam member. The cam member 45 is held so as to be rotatable about the rotation shaft 21. The cam member 45 includes a first stopper 451, a second stopper 452, an engaged portion 453, and a groove portion 454. The cam member 45 is always biased in the direction of arrow C in FIG.

  The groove 454 is configured so that the protrusion 412 of the sun gear 41 is engaged with the sun gear 41. The sun gear 41 rotates by a predetermined angle or more, and the protrusion 412 of the sun gear 41 contacts the end in the rotation direction. Then, the cam member 45 is also rotated in conjunction with the rotation of the sun gear 41.

  Reference numeral 48 denotes a lock member that is always urged by the urging member 482 in the direction of arrow D in FIG. The lock member 48 can engage with the engaged portion 453 of the cam member 45 to restrict the rotation of the cam member 45.

  Next, the operation of the rotation restricting device according to the present invention will be described with reference to FIGS.

  4 and 5 are side views for explaining the operation of the rotation restricting device in this embodiment. FIG. 4A is a side view of the rotation restricting device 40 when the touch panel 20 is accommodated. FIG. 4B is a side view of the rotation restricting device 40 in the middle of raising the touch panel 20. FIG. 4C is a side view of the rotation restricting device 40 when the touch panel 20 is fixed at an arbitrary angle. FIG. 4D is a side view of the rotation restricting device 40 when the touch panel 20 is raised by a certain angle or more. Fig.5 (a) is the side view which looked at the rotation control apparatus 40 of the state of FIG.4 (d) from the back surface. FIG. 5B is a side view of the rotation restricting device 40 when the touch panel 20 is accommodated. FIG. 5C is a side view of the rotation restricting device 40 immediately before returning the touch panel 20 to the storage position.

  As shown in FIG. 4A, in the position where the touch panel 20 is accommodated, the planetary gear 42 is located away from the fixed gear 44, and both the planetary gear 42 and the sun gear 41 are rotatable.

  From this state, when the touch panel 20 is raised in the direction of arrow A in FIG. 1B, the sun gear 41 rotates in the direction of arrow F in FIG. The planetary gear 42 is driven in conjunction with the sun gear 41 to rotate in the direction of arrow G in FIG. 4A, the arm 43 rotates in the direction of arrow F in FIG. It abuts against the stopper 451 and is held at the position shown in FIG.

  When the touch panel 20 is raised in the direction of arrow A in FIG. 1B, the sun gear 41 rotates in the direction of arrow F in FIG. 4B, and the planetary gear 42 idles in the direction of arrow G in FIG.

  Next, when the touch panel 20 is pushed in the direction of arrow B in FIG. 1B, the sun gear 41 rotates in the direction opposite to the arrow E direction in FIG. 4B, that is, the F direction. In conjunction with the rotation of the sun gear 41, the planetary gear 42 moves in the direction of arrow H in FIG. 4B, and the arm 43 rotates about the rotation shaft 21 in the direction of arrow E in FIG.

  When the arm 43 rotates in the direction of arrow C in FIG. 4B, the planetary gear 42 moves to the meshing position with the fixed gear 44 shown in FIG. 4C, and the rotation of the planetary gear 42 is restricted. When the rotation of the planetary gear 42 is restricted, the rotation of the sun gear 41 is also restricted, so that the touch panel 20 cannot be pushed further in the direction of arrow B shown in FIG. be able to.

  At this time, when the touch panel 20 is pushed with a strong force in the direction of arrow B in FIG. 1B, the load applied to the touch panel 20 drives the sun gear 41 and the planetary gear 42 to generate torque in the fixed gear 44. At this time, since the fixed torque of the fixed gear 44 is set to a certain value, the fixed gear 44 rotates when a torque equal to or greater than the fixed torque is generated, and the touch panel 20 is pushed in the direction B shown in FIG. In addition, excessive torque is not generated in the sun gear 41, the planetary gear 42, and the fixed gear 44, and generation of abnormal noise due to gear tooth skipping and gear tooth damage can be suppressed.

  Next, when the touch panel 20 is raised in the direction of arrow A in FIG. 1B, the sun gear 41 rotates in the direction of arrow F in FIG. When the sun gear 41 rotates to the position shown in FIG. 4D and FIG. 5A, the projection 412 of the sun gear 41 becomes the end in the rotational direction of the groove 454 of the cam member 45 as shown in FIG. Abuts against the part. Then, the cam member 45 is rotated in the direction of arrow F in FIG. 5A in conjunction with the sun gear 41, and the engaged portion 453 of the cam member 45 is connected to the lock member 48 as shown in FIG. The cam member 45 is engaged and held at the position shown in FIG.

  Next, when the touch panel 20 is pushed in the direction of arrow B in FIG. 1B from the state shown in FIG. 4D, the sun gear 41 rotates in the direction of arrow E in FIG. The planetary gear 42 rotates in the direction of arrow G in FIG. Then, the arm 43 rotates about the rotation shaft 21 in the direction of arrow E in FIG. 4D, and the arm 43 contacts the second stopper 452 of the cam member 45 and is held at the position shown in FIG. The At this time, since the planetary gear 42 is maintained at a position separated from the fixed gear 44, the planetary gear 42 is freely rotatable. Therefore, the sun gear 41 is also free to rotate, and the touch panel 20 can be further pushed in the direction of arrow B in FIG.

  Next, when the touch panel 20 is pushed to the storage position in the direction of arrow B in FIG. 1B, the sun gear 41 rotates in the direction of arrow E in FIG. Then, as shown in FIG. 5A, the arm portion 411 of the sun gear 41 pushes down the lock member 48, the lock member 48 is retracted downward from the engaged portion 453 of the cam member 45, and the lock is released. The member 45 rotates in the direction of arrow E in FIG. 5A and returns to the storage position shown in FIG.

(Example 2)
The second embodiment of the present invention will be described below with reference to FIG.

  FIG. 6 shows a rotation restricting device to which the second embodiment of the present invention is applied.

  51 is a sun roller, 52 is a planetary roller, and 54 is a fixed roller. Each roller is made of a rubber material having high frictional resistance, and can transmit power by rotating while in contact therewith. The sun roller 51 is rotatably held around the rotation shaft 21 and rotates in conjunction with the rotation operation of the touch panel 20. The planetary roller 52 is rotatably held by the bearing portion 431 of the arm 43. The planetary roller 52 is in contact with the sun roller 51, the planetary roller 52 rotates in conjunction with the rotation of the solar rubber roller 51, and the arm 43 rotates about the rotation shaft 21.

  As shown in FIG. 6A, in the position where the touch panel 20 is accommodated, the planetary roller 52 is located away from the fixed roller 54, and both the planetary roller 52 and the sun roller 51 are rotatable.

  From this state, when the touch panel 20 is raised in the direction of arrow A in FIG. 1B, the sun roller 51 rotates in the direction of arrow F in FIG. The planetary roller 52 is driven in conjunction with the sun roller 51 to rotate in the direction of arrow G in FIG. 6A, the arm 43 rotates in the direction of arrow F in FIG. 6A, and the arm 43 is the first stopper of the cam member 45. It abuts on 451 and is held at the position shown in FIG.

  Further, when the touch panel 20 is raised in the direction of arrow A in FIG. 1B, the sun roller 51 rotates in the direction of arrow F in FIG. 6B, and the planetary roller 52 idles in the direction of arrow G in FIG.

  Next, when the touch panel 20 is pushed in the direction of arrow B in FIG. 1B, the sun roller 51 rotates in the direction of arrow E in FIG. In conjunction with the rotation of the sun roller 51, the planetary roller 52 moves in the direction of arrow H in FIG. 6B, and the arm 43 rotates about the rotation shaft 21 in the direction of arrow E in FIG.

  When the arm 43 rotates in the direction of arrow C in FIG. 6B, the planetary roller 52 moves to the contact position with the fixed roller 54 shown in FIG. 6C, and the rotation of the planetary roller 52 is restricted. When the rotation of the planetary roller 52 is restricted, the rotation of the sun roller 51 is also restricted, so that the touch panel 20 cannot be pushed further in the direction of arrow B shown in FIG. be able to.

  Next, when the touch panel 20 is raised in the direction of arrow A in FIG. 1B, the sun gear 41 rotates in the direction of arrow F in FIG. When the sun roller 51 is rotated to the position shown in FIG. 6D and FIG. 7A, the projection 512 of the sun roller 51 is moved to the position of the sun roller 51 in the groove 454 of the cam member 45 as shown in FIG. Abuts against the end in the rotational direction. Therefore, the cam member 45 rotates in the direction of arrow F in FIG. As shown in FIG. 6D, the engaged portion 453 of the cam member 45 engages with the lock member 48 to hold the cam member 45 at the position shown in FIG.

  Next, when the touch panel 20 is pushed in the direction of arrow B in FIG. 1B from the state shown in FIG. 6D, the sun roller 51 rotates in the direction of arrow E in FIG. The planetary roller 52 rotates in the direction of arrow G in FIG. Then, the arm 43 rotates around the rotation shaft 21 in the direction of arrow E in FIG. 6D, and the arm 43 contacts the second stopper 452 of the cam member 45 and is held at the position shown in FIG. The At this time, since the planetary roller 52 is maintained at a position separated from the fixed roller 54, the planetary roller 52 is freely rotatable. Therefore, the sun roller 51 is also free to rotate, and the touch panel 20 can be further pushed in the direction of arrow B in FIG.

  Next, when the touch panel 20 is pushed to the storage position in the direction of arrow B in FIG. 1B, the sun roller 51 rotates in the direction of arrow E in FIG. Then, as shown in FIG. 7A, the arm portion 511 of the sun roller 51 pushes down the lock member 48, and the lock member 48 is retracted downward from the engaged portion 453 of the cam member 45. It rotates in the direction of arrow E in (a) and returns to the storage position shown in FIG.

  As described above, in the first and second embodiments, the touch panel 20 with the information display unit is described as an example of the information display device, but the present invention can also be applied to other rotating devices.

  Further, the present invention is not limited to these specific embodiments, and various forms within the scope of the present invention are also included in the present invention. A part of the above-described embodiments may be appropriately combined. You may combine suitably.

  In the above-described embodiment, the information display device has been described as the target of the rotation restriction. However, any other rotating member that rotates about the rotation axis can be applied.

  According to the present invention, the rotation of the information display device (angle fixing) can be performed at an arbitrary angle. In addition, since the rotation of the information display device is controlled by the meshing of the planetary gear and the fixed gear, the gear teeth can be prevented from jumping over or damaged during the rotation of the information display device. can do. Moreover, even if the information display device is held at an arbitrary angle and is pushed in the storing direction with a strong force by setting the fixed torque of the fixed gear to an arbitrary torque, the fixed gear rotates to increase the amount of gear between the gears. No stress is generated and gear skipping noise and damage can be suppressed. In particular, in the case of the rotation restricting device for the touch panel as in the above-described embodiment, the touch operation is performed while affirming the touch panel at an arbitrary angle, and thus a strong force is easily applied in the storage direction, and the present invention is particularly useful.

Claims (8)

A rotation restricting device for a device having a rotating member rotatable around a rotation axis,
A first rotating body that rotates in conjunction with rotation of the rotating member;
An arm supported rotatably about the rotation axis;
A second rotating body provided on the arm that rotates in conjunction with the rotation of the first rotating body;
A first stopper for restricting rotation of the arm;
A regulating portion that regulates rotation of the second rotating body by contacting the second rotating body;
The arm rotates in conjunction with rotation of the second rotating body rotating in conjunction with the first rotating body;
When the rotating member rotates in a predetermined direction, the arm rotates in a first direction in which the second rotating body and the restricting portion are separated in conjunction with the rotation of the first rotating body. And
The first stopper restricts the rotation of the arm in the first direction;
When the rotation of the arm is restricted by the first stopper, the arm does not rotate in conjunction with the rotation of the first rotating body, and the second rotating body idles,
When the rotating member rotates in the direction opposite to the predetermined direction, in conjunction with the rotation of the first rotating body, in the second direction in which the second rotating body and the restricting portion come into contact with each other. The rotation restricting device, wherein the arm rotates. A second stopper for restricting rotation of the arm in the second direction;
The rotating member is rotatably held around the rotation axis of the rotating member, and has a groove portion, an engaging portion, the first stopper, and the second stopper, and the protrusion portion of the first rotating body and the groove portion A cam member that rotates by contacting the cam member;
A locking portion that regulates rotation of the cam member by engaging with the engaging portion;
In response to rotating the cam member to a predetermined position in the first direction, the locking member restricts rotation of the cam member in the second direction,
When the arm is rotated in a state where the rotation of the cam member is restricted by the lock member, the arm is stopped by the second stopper before the second rotating body and the restricting portion come into contact with each other. The rotation restricting device according to claim 1, wherein the rotation is restricted. In a state where the rotation of the arm is regulated by the second stopper, the first rotating body is further rotated to a position where the first rotating body comes into contact with the end portion in the second direction of the groove portion. The cam member is configured to rotate in response to rotation of the rotating body in the second direction,
The rotation restricting device according to claim 2, wherein the lock member and the engagement portion are disengaged by rotating the cam member to a predetermined position in the second direction.   4. The rotation restriction according to claim 1, wherein the first rotating body, the second rotating body, and the restricting portion are gears having a plurality of teeth. 5. apparatus.   The said 1st rotary body, the said 2nd rotary body, and the said control part are rotary bodies which consist of a rubber material of a high friction coefficient, The any one of Claim 1 thru | or 4 characterized by the above-mentioned. Rotation restricting device.   The rotation restricting device according to any one of claims 1 to 5, wherein the restricting portion is a rotating body and rotates at an arbitrary torque or more.   The rotation restricting device according to claim 1, wherein the rotating member is provided with a display device.   The rotation restricting device according to claim 7, wherein the display device is a touch panel.

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