JP2011196765A - Article support device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an article support device capable of performing fine adjustment, while keeping an approximate angle, without causing enlargement of the device constitution.SOLUTION: The article support device includes a rotation angle adjusting mechanism 12, between a first framework member 21 and a second framework member 22, which rotate relatively like a hinge. In the rotation angle adjusting mechanism 12, the rotation angle between the first framework member 21 and the second framework member 22 is determined roughly, according to the pitch of the meshing part of a first engagement member 31 with a second engagement member 32. By rotating a plate member 33 around an axis C1, in a state that these substances are engaged, the angle of the plate member 33 to the second framework member 22 is finely adjusted. As a result, the relative angle of the first framework member 21 to the second framework member 22 is adjusted accurately by rough adjustment by the mesh between the first engagement member 31 and the second engagement member 32, and by the fine adjustment by the rotation of the plate member 33, with respect to the second framework member 22.

Description

  The present invention relates to an article support apparatus, and more particularly to an article support apparatus that adjusts the angle of an article to be supported.

  2. Description of the Related Art Conventionally, an article support device that supports an article supports the article at a predetermined position, for example, by adjusting the rotation angle of the hinge portion. For example, in the case of a monitoring device that monitors a monitoring area using a laser or camera image, the laser sensor or camera is supported by an article support device. The laser sensor is used for monitoring a wide monitoring area, that is, a long distance by making use of the characteristics of the laser beam. However, when long-distance monitoring is performed using laser light, the angle shifts at the target irradiation point and the error increases as the monitoring range becomes far. That is, a slight rotation angle error of about several degrees in the article support apparatus is an error of about several tens of centimeters at the outer edge of the monitoring area irradiated with the laser beam. Therefore, in the case of a monitoring device, it is required to determine an accurate position by the article support device.

  Therefore, in Patent Document 1, a rack and pinion mechanism is used to adjust the installation angle of an article supported by the article support device. However, in the case of Patent Document 1, the angle can be adjusted only in units corresponding to the pitch width of the rack and pinion. Therefore, depending on the initial installation position and installation angle of the laser sensor, adjustment for irradiating laser light to an arbitrary position becomes difficult. In the case of Patent Document 1, the article support device is held only at one point where the rack and the pinion are engaged with each other. For this reason, the angle of the article support device may change due to the weight of the object during position adjustment, and readjustment may be necessary. Furthermore, a laser sensor, a camera, or the like that is an object is often attached at a position close to a wall of a house. Therefore, it is difficult to secure a space for adjustment in the article support device. In the case of Patent Document 1, there is a problem that as the adjustment width increases, the length of the rack increases and a lot of space is required.

JP-A-5-187159

  Accordingly, an object of the present invention is to provide an article support device capable of fine adjustment while maintaining a rough angle without causing an increase in size of the physique.

  In the first aspect of the present invention, the stay member and the frame member rotate in a hinge shape with the rotation center as an axis. The frame member is further rotatable relative to the plate member around the center of rotation. The rotation angle adjustment mechanism has a first fitting member connected to the stay member and a second fitting member connected to the plate member. The first fitting member and the second fitting member mesh with each other at the first tooth portion and the second tooth portion. The first tooth portion is provided on the side of the first fitting member facing the second fitting member along the rotation direction of the first fitting member with the rotation center as an axis. Similarly, the second tooth portion is provided on the side of the second fitting member facing the first fitting member along the rotation direction of the second fitting member with the rotation center as an axis. Accordingly, by shifting the meshing between the first fitting member and the second fitting member that are meshed with each other, the stay member integral with the first fitting member and the plate member integral with the second fitting member are , The angle they form changes. That is, the angle between the stay member and the plate member changes for each pitch of the first tooth portion and the second tooth portion. Further, the plate member can be rotated relative to the frame member around the rotation center. Therefore, by rotating the plate member, the second fitting member integral with the plate member, the first fitting member meshing with the second fitting member, and the stay member integral with the first fitting member are attached to the frame member. The angle changes. Accordingly, the angle between the stay member and the plate member is roughly determined by shifting the meshing pitch between the first fitting member and the second fitting member. By tightening the lock member in this state, the first fitting member and the second fitting member are engaged and held together. Then, the angle of the plate member is finely adjusted by rotating the plate member around the rotation center. This plate member is rotatable relative to the frame member between both ends in the circumferential direction around the rotation center. That is, the plate member can rotate around the rotation center, and this rotatable range is set between both ends in the circumferential direction of the plate member. That is, the angle of the stay member and the frame member is roughly determined by the fitting of the first fitting member and the second fitting member, and the angle is finely adjusted between both ends in the circumferential direction by the rotation of the plate member. Is done. Furthermore, rotation about the rotation center is used for determining the angle. Therefore, the occupied space becomes small. As a result, the structure can be simplified even if the configuration for determining the rough angle and the configuration for determining the detailed angle are separated. Therefore, it is possible to finely adjust the relative rotation angle between the stay member and the frame member while maintaining a general angle without causing an increase in the size of the physique and a complicated structure.

  In the invention according to claim 2, the plate member has an arc hole. As a result, the rotation angle of the plate member is adjusted in the range of the arc hole with the rotation center as an axis. That is, by loosening the holding member, the angle between the plate member and the frame member is determined in detail in a state where free rotation between the plate member and the frame member is ensured in the range of the arc hole. Then, the angle between the plate member and the frame member is determined by tightening the holding member. Therefore, the relative rotation angle between the stay member and the frame member can be finely adjusted.

  In the invention according to claim 3, the plate member has a rack portion. Thereby, the rotation angle of the plate member is adjusted in the range of the rack portion with the rotation center as an axis. That is, by rotating the holding member provided with the pinion, the angle between the plate member and the frame member is determined in detail for each pitch of the rack portion and the pinion. Therefore, the relative rotation angle between the stay member and the frame member can be finely adjusted.

1 is a schematic perspective view showing an article support device according to an embodiment of the present invention. 1 is a schematic exploded perspective view showing an article support device according to an embodiment. The schematic perspective view which shows the rotation angle adjustment mechanism part of the article | item support apparatus by one Embodiment. It is the schematic perspective view which looked at the rotation angle adjustment mechanism part of the article | item support apparatus by one Embodiment from the 2nd frame member side, Comprising: The figure which shows the state except the 2nd frame member The schematic perspective view which shows the structure of the rotation angle adjustment mechanism part of the article | item support apparatus by one Embodiment. The schematic diagram which shows the plate member which comprises the rotation angle adjustment mechanism part of the article | item support apparatus by one Embodiment. The schematic perspective view which shows the rotation angle adjustment mechanism part of the article | item support apparatus by one Embodiment.

Hereinafter, an article support device according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the article support device 10 supports a laser irradiation device 11. The laser irradiation device 11 irradiates a preset monitoring area with laser light at a predetermined angular interval. In the case of the article support apparatus 10 according to one embodiment, two rotation angle adjustment mechanisms 12 and 13 are provided. The rotation angle adjustment mechanism unit 12 adjusts the vertical rotation angle of the laser irradiation device 11 in the middle of the article support device 10. Further, the rotation angle adjustment mechanism unit 13 adjusts the rotation angle in the turning direction of the laser irradiation device 11 at the end of the article support device 10. The article support device 10 has an end 14 opposite to the laser irradiation device 11 fixed to a structure such as a wall of a house.

  First, the rotation angle adjustment mechanism unit 12 will be described. The article support device 10 includes a first skeleton member 21 and a second skeleton member 22. The first skeleton member 21 corresponds to a stay member in the claims, and the second skeleton member 22 corresponds to a frame member in the claims. The first skeleton member 21 and the second skeleton member 22 are movable in a hinge shape at two joint portions 23 and 24. The rotation angle adjusting mechanism 12 is provided at one joint 23 of the two joints 23 and 24.

  The rotation angle adjustment mechanism 12 includes a first fitting member 31, a second fitting member 32, a plate member 33, a lock member 34, and a holding member 35 as shown in FIGS. The first fitting member 31 is formed in a disc shape and is connected to the first skeleton member 21 integrally. Specifically, the first fitting member 31 has an insertion portion 36 at one end in the axial direction of the disk as shown in FIG. In the first skeleton member 21, the end portion on the second skeleton member 22 side is inserted into the insertion portion 36. The first fitting member 31 has a first tooth portion 41 on the end face on the second skeleton member 22 side. The first tooth portion 41 is uneven in the axial direction of the first fitting member 31. Similar to the first fitting member 31, the second fitting member 32 is formed in a disc shape, and is integrally connected to the plate member 33. The second fitting member 32 is provided to face the first fitting member 31. The second fitting member 32 has a second tooth portion 42 on the end surface facing the first fitting member 31. The second tooth portion 42 is uneven in the axial direction of the second fitting member 32. The interval, that is, the pitch of the irregularities of the first tooth portion 41 and the pitch of the second tooth portion 42 are substantially the same. Thereby, the 1st tooth part 41 of the 1st fitting member 31 and the 2nd tooth part 42 of the 2nd fitting member 32 can mutually mesh | engage.

As shown in FIG. 2, the plate member 33 is formed in a substantially rectangular plate shape. One end of the plate member 33 is integrally connected to the second fitting member 32 as shown in FIG. Specifically, the second fitting member 32 has an insertion portion 43 on the end surface side opposite to the second tooth portion 42. The end of the plate member 33 on the second fitting member 32 side is inserted into the insertion portion 43.
The lock member 34 is provided on the same axis as the axis C1 serving as the rotation center. As shown in FIG. 3, the lock member 34 penetrates all of the first skeleton member 21, the second skeleton member 22, the first fitting member 31, the second fitting member 32, and the plate member 33. The lock member 34 has a body portion 44 on one end side in the axial direction. The end of the lock member 34 on the side of the body 44 is rotatably supported by the first skeleton member 21, and the end on the side opposite to the body 44 is rotatably supported by the support 45 of the second skeleton member 22. ing.

  The rotation angle adjusting mechanism 12 includes an elastic member 46 and an elastic member 47 as shown in FIG. The elastic member 46 and the elastic member 47 are formed by, for example, a wave washer. The elastic member 46 is sandwiched between the first skeleton member 21 and the first fitting member 31 and has an elastic force that presses the first fitting member 31 toward the second fitting member 32. The elastic member 47 is sandwiched between the plate member 33 and the second fitting member 32 and has an elastic force that presses the second fitting member 32 toward the first fitting member 31.

  The lock member 34 penetrates the first skeleton member 21, the second skeleton member 22, the first fitting member 31, the second fitting member 32, and the plate member 33, thereby integrating the first skeleton member 21 and The first fitting member 31, the integrated second fitting member 32 and plate member 33, and the second skeleton member 22 are supported in a state where relative rotation is possible. A screw is formed on the support portion 45 of the second skeleton member 22. Therefore, when the lock member 34 is rotated to one side around the axis C <b> 1, the lock member 34 is fastened to the support portion 45. Accordingly, when the lock member 34 is rotated to one side around the axis C1, the first fitting member 31 and the second fitting member 32 are tightened in the fitting direction. At this time, the elastic member 46 and the elastic member 47 also press the first fitting member 31 and the second fitting member 32 in the direction in which they are fitted to each other. On the other hand, the lock member 34 is loosened from the support portion 45 when rotated to the other side about the axis C1. Thereby, when the lock member 34 is rotated to the other side about the axis C <b> 1, the fitting force acting between the first fitting member 31 and the second fitting member 32 decreases. At this time, the elastic member 46 presses the first fitting member 31 to the second fitting member 32 side, and the elastic member 47 presses the second fitting member 32 to the first fitting member 31 side. Therefore, the first fitting member 31 and the second fitting member 32 maintain a loosely fitted state.

  The plate member 33 has one end in the longitudinal direction connected to the second fitting member 32 and is rotatably supported by the lock member 34. As shown in FIG. 2, the plate member 33 has an arc hole 48 as a fine adjustment portion at the other end in the longitudinal direction. The arc hole 48 extends in an arc shape in the rotation direction with the rotation center of the rotation angle adjusting mechanism 12 as the axis C1. As shown in FIG. 6, the plate member 33 has a rack portion 49 on the inner wall forming the arc hole portion 48. The rack portion 49 corresponds to a plate-side fine adjustment portion in the claims.

  As shown in FIG. 3, the holding member 35 penetrates the plate member 33 and the second skeleton member 22. The holding member 35 has a body portion 51, and an end portion on the opposite side to the body portion 51 is rotatably supported by the support portion 52 of the second skeleton member 22. The holding member 35 passes through the arc hole 48 of the plate member 33. As shown in FIGS. 2 and 4, the holding member 35 has a pinion portion 53 that can mesh with the rack portion 49 of the plate member 33 at a part of the entire length in the axial direction. 2 and 4, the pinion shape in the pinion portion 53 is omitted. The holding member 35 is rotatably supported by the support portion 52 of the second skeleton member 22, thereby sandwiching the plate member 33 between the trunk portion 51 and the support portion 52 of the second skeleton member 22. In this case, the tightening force applied between the trunk portion 51 and the support portion 52 is set to an extent that allows relative rotation between the plate member 33 and the second skeleton member 22. Therefore, the engagement of the holding member 35 with the rack portion 49 is changed by the rotation to one or the other. As a result, by rotating the holding member 35 to one side or the other, the plate member 33 and the second skeleton member 22 rotate relative to each other about the axis C1. Therefore, the relative angle between the plate member 33 and the second skeleton member 22 varies slightly according to the pitch of the rack portion 49 due to the change in meshing between the pinion portion 53 of the holding member 35 and the rack portion 49 of the plate member 33. Adjusted. Thus, the holding member 35 holds the plate member 33 and the second skeleton member 22 while determining their relative positions.

  The arc hole 48a extends in the rotation direction with the rotation center as the axis C1. Therefore, the plate member 33 held by the holding member 35 rotates relative to the second skeleton member 22 between both ends in the rotation direction with the center of rotation as the axis C1, that is, between both ends of the arc hole 48a. To do. Thus, the relative rotation range of the plate member 33 with respect to the second skeleton member 22 is limited. Thereby, the relative rotation range of the plate member 33 and the second skeleton member 22 is set between the both ends of the plate member 33 in the circumferential direction of the plate member 33 with the rotation center as the axis C1, that is, both ends of the arc hole 48a. Limited between clubs.

Next, the operation of the rotation angle adjustment mechanism unit 12 in the article support device 10 having the above configuration will be described.
The rotation angle adjusting mechanism unit 12 rotates the lock member 34 to release the fitting between the first fitting member 31 and the second fitting member 32, whereby the first skeleton member 21 and the plate are centered on the axis C <b> 1. The member 33 can be relatively rotated. By rotating the lock member 34 to the other side described above, the force with which the lock member 34 tightens the first fitting member 31 and the second fitting member 32 in the fitting direction is loosened. Thereby, the 1st fitting member 31 and the 2nd fitting member 32 become relatively rotatable centering on the axis | shaft C1. At this time, the first fitting member 31 and the second fitting member 32 are pressed by the elastic member 46 and the elastic member 47 in a direction in which they are fitted to each other. Thereby, the 1st fitting member 31 and the 2nd fitting member 32 are fitting loosely. Therefore, the first fitting member 31 and the second fitting member 32 rotate relatively while the meshing between the first tooth portion 41 and the second tooth portion 42 is shifted in the rotation direction around the axis C1. Moreover, the elastic member maintains the loose fitting with the 1st fitting member 31 and the 2nd fitting member 32 with the pressing force. Therefore, when the engagement between the first tooth portion 41 and the second tooth portion 42 is shifted, a light click feeling is added to the user who operates the article support device 10. By setting the pitch of the first tooth portion 41 and the second tooth portion 42, the rotation angle that changes per one click feeling is arbitrarily set. In the case of this embodiment, for each click feeling, the first skeleton member 21 and the plate member 33 rotate relatively 2.5 ° about the axis C1. That is, the angle formed by the first skeleton member 21 and the plate member 33 changes by 2.5 ° for each click feeling.

  By relatively rotating the first skeleton member 21 and the plate member 33 in a state where the lock member 34 is loosened, the first skeleton member 21 and the plate member 33 have an angle around the axis C1 of the joint portion 23. Change. When the first skeleton member 21 and the plate member 33 are at a desired angle, the user rotates the lock member 34 to the opposite side when loosening it. Thereby, the lock member 34 is fastened to the support part 45 of the second skeleton member 22, and the first fitting member 31 and the second fitting member 32 are fixed in a state where the fitting is maintained.

  By fastening the lock member 34 in this manner, the fitting between the first fitting member 31 and the second fitting member 32 is fixed. Therefore, the first skeleton member 21 connected to the first fitting member 31 and the plate member 33 connected to the second fitting member 32 are fixed at a desired angle. Thus, when the 1st fitting member 31 and the 2nd fitting member 32 are fitting, the plate member 33 connected to the 2nd fitting member 32 is the 2nd frame member 22 centering on the axis | shaft C1. And is relatively rotatable. The angle at which the plate member 33 and the second skeleton member 22 can rotate relatively depends on the arc hole 48 of the plate member 33. That is, the plate member 33 and the second skeleton member 22 are relatively positioned between the one end portion 481 and the other end portion 482 of the arc hole portion 48 in the rotation direction of the holding member 35 about the axis C1. It can be rotated. More specifically, the holding member 35 is movable between the end portion 481 and the end portion 482 of the arc hole portion 48. Therefore, the arc hole 48 defines a range in which the plate member 33 and the second skeleton member 22 are relatively rotatable.

  In the case of this embodiment, a rack portion 49 is provided on the inner wall of the plate member 33 that forms the arc hole portion 48. When the holding member 35 is rotated, the meshing between the pinion portion 53 of the holding member 35 and the rack portion 49 of the plate member 33 changes. Therefore, when the holding member 35 is rotated, the relative rotation angle between the plate member 33 and the second skeleton member 22 changes for each pitch of the rack portion 49. In the case of this embodiment, when the holding member 35 moves from the end portion 481 of the arcuate hole portion 481 to the end portion 482, the plate member 33 and the second skeleton member 22 are connected to the first tooth portion 41 of the first fitting member 31. And the rotation angle changes by 2 pitches of the second tooth portion 42 of the second fitting member 32. In other words, when the holding member 35 is in the center of the arc hole 48, when the holding member 35 moves to one end 481, the rotation angle between the plate member 33 and the second skeleton member 22 changes by + 2.5 °, and the other end When it moves to 482, the rotation angle between the plate member 33 and the second skeleton member 22 changes by -2.5 °. In the case of this embodiment, the pitch of the rack part 49 is set to 1/5 of the pitch of the first tooth part 41 and the second tooth part 42. Therefore, when the meshing between the holding member 35 and the plate member 33 is shifted by one pitch, the rotation angle between the plate member 33 and the second skeleton member 22 changes by 0.5 °. In addition, the plate member 33 shown in FIG. 6 is typical, and the number of teeth of the rack portion 49 is different from the actual number.

  As described above, the rotation angle adjusting mechanism 12 can loosely adjust the angle formed by the first skeleton member 21 and the plate member 33 at intervals of 2.5 ° by loosening the lock member 34. . After roughly determining the angle formed by the first skeleton member 21 and the plate member 33 in a state where the lock member 34 is loosened, the first fitting member 31 and the second fitting member 31 are tightened by tightening the lock member 34. The fitting with the fitting member 32 is fixed, and the angle formed by the first skeleton member 21 and the plate member 33 is roughly determined. When the holding member 35 is rotated in this state, the angle formed by the plate member 33 and the second skeleton member 22 changes in increments of 0.5 ° according to the pitch of the rack portion 49. Thereby, the angle formed by the plate member 33 and the second skeleton member 22 is finely adjusted below the pitch of the first tooth portion 41 and the second tooth portion 42. At the same time, since the angle of the first skeleton member 21 with respect to the second skeleton member 22 also changes, the angle formed by the first skeleton member 21 and the second skeleton member 22 is finally finely adjusted. That is, the first skeleton member 21 and the second skeleton member 22 are determined after the approximate rotation angle is determined by the relative rotation of the first fitting member 31 and the second fitting member 32, and then the second skeleton member. The detailed rotation angle is finely adjusted by the rotation of the plate member 33 with respect to 22.

Next, the rotation angle adjustment mechanism unit 13 will be described.
In addition to the first skeleton member 21 and the second skeleton member 22, the article support device 10 has a third skeleton member 60 as shown in FIGS. 1, 2, and 7. In the case of the rotation angle adjusting mechanism 13, the first skeleton member 21 corresponds to a stay member in the claims, and the third skeleton member 60 corresponds to a frame member in the claims. As shown in FIG. 1, the first skeleton member 21 and the third skeleton member 60 rotate relative to each other about the center of rotation about the axis C2. The third skeleton member 60 supports the laser irradiation device 11 on the side opposite to the first skeleton member 21.

  As shown in FIGS. 1, 2, 4, and 7, the rotation angle adjustment mechanism unit 13 includes a first fitting member 61, a second fitting member 62, a plate member 63, a lock member 64, and a holding member 65. is doing. The first fitting member 61 is formed in a disc shape and is connected to the first skeleton member 21 integrally. Specifically, the first fitting member 61 has an insertion portion 66 at one end in the axial direction of the disk as shown in FIGS. 4 and 7. In the first skeleton member 21, the end portion on the third skeleton member 60 side is inserted into the insertion portion 66. As shown in FIG. 4, the first fitting member 61 has a first tooth portion 71 on the end face on the third skeleton member 60 side. The first tooth portion 71 is uneven in the axial direction of the first fitting member 61. The second fitting member 62 is formed in a disk shape like the first fitting member 61 and is integrally connected to the plate member 63. The second fitting member 62 is provided to face the first fitting member 61. The second fitting member 62 has a second tooth portion 72 on the end surface facing the first fitting member 61. The second tooth portion 72 is uneven in the axial direction of the second fitting member 62. The interval, that is, the pitch of the irregularities of the first tooth portion 71 and the pitch of the second tooth portion 72 are substantially the same. Thereby, the 1st tooth part 71 of the 1st fitting member 61 and the 2nd tooth part 72 of the 2nd fitting member 62 can mutually mesh | engage.

As shown in FIG. 2, the plate member 63 is formed in a substantially rectangular plate shape. One end of the plate member 63 is integrally connected to the second fitting member 62. Specifically, the 2nd fitting member 62 has the insertion part 73 in the edge part on the opposite side to the 2nd tooth | gear part 72, as shown in FIG. The end of the plate member 63 on the second fitting member 62 side is inserted into the insertion portion 73.
As shown in FIGS. 1 and 7, the lock member 64 is provided on the same axis as the axis C2 serving as the center of rotation. The lock member 64 penetrates all of the first skeleton member 21, the third skeleton member 60, the first fitting member 61, the second fitting member 62, and the plate member 63. As shown in FIG. 2, the lock member 64 has a body portion 74 on one end side in the axial direction. The end of the lock member 64 on the body 74 side is rotatably supported by the first skeleton member 21, and the end on the side opposite to the body 74 is rotatably supported by the support portion 75 of the third skeleton member 60. ing.

  The rotation angle adjustment mechanism unit 13 has two elastic members (not shown) in addition to the above configuration. The two elastic members (not shown) are both formed by wave washers like the elastic member 46 and the elastic member 47. One of the two elastic members is sandwiched between the first skeleton member 21 and the first fitting member 61, and has an elastic force to press the first fitting member 61 toward the second fitting member 62. ing. The other of the two elastic members is sandwiched between the plate member 63 and the second fitting member 62 and has an elastic force that presses the second fitting member 62 toward the first fitting member 61 side. .

  The lock member 64 penetrates the first skeleton member 21, the third skeleton member 60, the first fitting member 61, the second fitting member 62, and the plate member 63, thereby integrating the first skeleton member 21 and The first fitting member 61, the integrated second fitting member 62 and plate member 63, and the third skeleton member 60 are supported in a relatively rotatable state. When the lock member 64 is rotated to one side around the axis C <b> 2, the lock member 64 is fastened to the support portion 75 of the third skeleton member 60. Accordingly, when the lock member 64 is rotated in one direction around the axis C2, the first fitting member 61 and the second fitting member 62 are tightened in the fitting direction. At this time, the elastic member (not shown) also presses the first fitting member 61 and the second fitting member 62 in the direction in which they are fitted to each other. On the other hand, when the lock member 64 is rotated about the axis C <b> 2 to the other side, the lock member 64 is loosened from the support portion 75 of the third skeleton member 60. Thereby, if the lock member 64 is rotated to the other centering on the axis | shaft C2, the fitting force which acts between the 1st fitting member 61 and the 2nd fitting member 62 will fall. At this time, the two elastic members are pressed in the direction in which the first fitting member 61 and the second fitting member 62 are fitted together. Therefore, the first fitting member 61 and the second fitting member 62 maintain a loosely fitted state.

  The plate member 63 has one end in the longitudinal direction fitted to the second fitting member 62 and is rotatably supported by the lock member 64. As shown in FIG. 2, the plate member 63 has an arc hole 78 as a fine adjustment portion at the other end in the longitudinal direction. The arc hole portion 78 extends in an arc shape in the rotation direction around the axis C <b> 2 of the rotation angle adjustment mechanism portion 13. The plate member 63 has a rack portion (not shown) on the inner wall forming the arc hole portion 78. This rack portion corresponds to the plate-side fine adjustment portion in the claims. The configuration of the rack portion of the plate member 63 is the same as that of the rack portion 49 of the plate member 33.

  As shown in FIG. 2, the holding member 65 penetrates the plate member 63 and the third skeleton member 60. The holding member 65 has a trunk (not shown), and an end opposite to the trunk is rotatably supported by the support portion 82 of the third skeleton member 60. The holding member 65 passes through the arc hole 78 of the plate member 63. The holding member 65 has a pinion portion (not shown) that can mesh with the rack portion of the plate member 63 at a part of the entire length in the axial direction. The configuration of the pinion portion of the holding member 65 is the same as that of the pinion portion 53 of the holding member 35. The holding member 65 is rotatably supported by the support portion 82, thereby sandwiching the plate member 63 between the trunk portion and the support portion 82 of the third skeleton member 60. In this case, the tightening force applied between the trunk portion and the support portion 82 is set to an extent that allows relative rotation between the plate member 63 and the third skeleton member 60. For this reason, the holding member 65 changes its engagement with a rack portion (not shown) of the plate member 63 by rotation to one or the other. As a result, by rotating the holding member 65 to one side or the other side, the plate member 63 and the third skeleton member 60 rotate relative to each other about the axis C2. Therefore, the relative angle between the plate member 63 and the third skeleton member 60 is finely adjusted according to the pitch of the rack portion by the change in meshing between the pinion portion of the holding member 65 and the rack portion of the plate member 63. .

Next, the operation of the rotation angle adjusting mechanism unit 13 configured as described above will be described. It should be noted that substantially the same operation as that of the rotation angle adjustment mechanism unit 12 will be omitted.
The rotation angle adjusting mechanism unit 13 rotates the lock member 64 to release the fitting between the first fitting member 61 and the second fitting member 62, whereby the first skeleton member 21 is rotated about the axis C <b> 2. The plate member 63 can be relatively rotated. By rotating the lock member 64 to the other side described above, the force with which the lock member 64 tightens the first fitting member 61 and the second fitting member 62 in the fitting direction is loosened. Thereby, the 1st fitting member 61 and the 2nd fitting member 62 become relatively rotatable centering | focusing on the axis | shaft C2. At this time, since the first fitting member 61 and the second fitting member 62 are pressed against each other by an elastic member (not shown), the first fitting member 61 and the second fitting member 62 are loosely fitted. Yes. Therefore, the first fitting member 61 and the second fitting member 62 give a light click feeling while the meshing of the first tooth portion 71 and the second tooth portion 72 is shifted in the rotation direction around the axis C2. While relatively rotating. In the case of the present embodiment, the rotation angle adjustment mechanism unit 13 has a relative rotation angle between the first skeleton member 21 and the plate member 63 of 2.5 for each click feeling, similarly to the rotation angle adjustment mechanism unit 12. ° Change.

  By rotating the first skeleton member 21 and the plate member 63 relatively with the lock member 64 loosened, the rotation angle of the first skeleton member 21 and the plate member 63 changes around the axis C2. When the first skeleton member 21 and the plate member 63 reach a desired rotation angle, the user tightens the lock member 64. Thereby, the lock member 64 is fastened to the support part 75, and the 1st fitting member 61 and the 2nd fitting member 62 are fixed in the state which maintained fitting.

  By tightening the lock member 64, the fitting between the first fitting member 61 and the second fitting member 62 is fixed, and the first skeleton member 21 and the second fitting member connected to the first fitting member 61. The plate member 63 connected to 62 is fixed at a desired angle. When the first fitting member 61 and the second fitting member 62 are fitted, the plate member 63 connected to the second fitting member 62 is relative to the third skeleton member 60 about the axis C2. Can be rotated. The angle at which the plate member 63 and the third skeleton member 60 can relatively rotate depends on the circular arc hole 78 of the plate member 63.

  When the holding member 65 is rotated, the meshing between the pinion portion of the holding member 65 and the rack portion of the plate member 63 changes. Therefore, when the holding member 65 is rotated, the relative rotation angle between the plate member 63 and the third skeleton member 60 changes for each rack portion pitch. In the case of the present embodiment, when the meshing between the holding member 65 and the plate member 63 is shifted by one pitch, the rotation angle between the plate member 63 and the third skeleton member 60 changes by 0.5 °.

  As described above, the rotation angle adjustment mechanism 13 can loosely adjust the angle formed by the first skeleton member 21 and the plate member 63 at intervals of 2.5 ° by loosening the lock member 34. . After roughly determining the angle formed by the first skeleton member 21 and the plate member 63 in a state where the lock member 34 is loosened, the first fitting member 61 and the second fitting member 61 are tightened by tightening the lock member 34. The fitting with the fitting member 62 is fixed, and the angle formed by the first skeleton member 21 and the plate member 63 is roughly determined. When the holding member 65 is rotated in this state, the angle formed by the plate member 63 and the third skeleton member 60 changes in increments of 0.5 ° according to the pitch of the rack portion. Thereby, the angle formed by the plate member 63 and the third skeleton member 60 is finely adjusted below the pitch of the first tooth portion 71 and the second tooth portion 72. At the same time, since the angle of the first skeleton member 21 with respect to the third skeleton member 60 also changes, the angle formed by the first skeleton member 21 and the third skeleton member 60 is finally finely adjusted. That is, the first skeleton member 21 and the third skeleton member 60 are determined with respect to the plate member 63 after a rough rotation angle is determined by the relative rotation of the first fitting member 61 and the second fitting member 62. The detailed rotation angle is finely adjusted by the rotation of the third skeleton member 60.

  In the above-described embodiment, the first fitting members 31 and 61 and the second fitting members 32 and 62 that are meshed with each other are shifted from each other so that the first fitting members 31 and 61 are integrated with each other. The angle of the skeleton member 21 and the plate members 33 and 63 integrated with the second fitting members 32 and 62 changes according to the pitch of the first tooth portions 41 and 71 and the second tooth portions 42 and 72. The plate members 33 and 63 are rotatable relative to the second skeleton member 22 or the third skeleton member 60 about the axis C1 or the axis C2. As a result, the relative angle between the first skeleton member 21 and the plate members 33 and 63 is roughly set by shifting the meshing pitch between the first fitting members 31 and 61 and the second fitting members 32 and 62. It is determined. By tightening the lock members 34 and 64 in this state, the first fitting members 31 and 61 and the second fitting members 32 and 62 are engaged with each other and held together. Then, by rotating the plate members 33 and 63 about the axis C1 or the axis C2, the angles of the plate members 33 and 63 are finely adjusted. That is, the first skeleton member 21 and the second skeleton member 22 or the third skeleton member 60 are roughly relative angles by fitting the first fitting members 31 and 61 and the second fitting members 32 and 62. Is determined, and the exact angle is finely adjusted by the rotation of the plate members 33 and 63. Further, the rotation about the axis C1 or the axis C2 is used to determine the relative angle. Therefore, the occupied space becomes small. As a result, the first fitting members 31 and 61 and the second fitting members 32 and 62 for determining an approximate angle, and plate members 33 and 63 and holding members 35 and 65 for determining a detailed angle are provided. Even if the parts are separated, the structure becomes simple. Therefore, the relative rotation angle between the first skeleton member 21 and the second skeleton member 22 or the third skeleton member 60 is kept small while maintaining a rough angle without increasing the size of the physique and complicating the structure. Can be adjusted.

In one embodiment, the plate members 33 and 63 have arc hole portions 48 and 78. Thereby, the rotation angle of the plate members 33 and 63 is adjusted in the range of the arc hole portions 48 and 78 with the axis C1 or the axis C2 as the rotation center. Therefore, the relative rotation angle between the first skeleton member 21 and the second skeleton member 22 or the third skeleton member 60 can be finely adjusted within a predetermined range.
Furthermore, in one embodiment, the plate members 33 and 63 have a rack portion 49 on the inner wall that forms the arc hole portions 48 and 78. Thereby, the rotation angle of the plate members 33 and 63 is adjusted in the range of the rack portion 49 around the axis C1 or the axis C2. That is, by rotating the holding members 35 and 65 provided with the pinion portion, the plate member 33 and the second skeleton member 22 or the plate member 63 and the third skeleton member 60 are provided for each pitch of the rack portion 49 and the pinion portion 53. The angle is determined in detail. Therefore, the relative rotation angle between the first skeleton member 21 and the second skeleton member 22 or the third skeleton member 60 can be easily finely adjusted.

(Other embodiments)
The present invention described above is not limited to the above-described embodiment, and can be applied to various embodiments without departing from the gist thereof.
In the above-described embodiment, the example in which the rack portion 49 is formed on the inner wall forming the arc hole portion 48 of the plate member 33 has been described. However, it is not necessary to provide the rack part 49 on the plate member 33 and the pinion part 53 on the holding member 35. In this case, the holding member 35 is configured to be fastened to the second skeleton member 22. Thus, when the approximate angle between the first skeleton member 21 and the plate member 33 is determined by fitting the first fitting member 31 and the second fitting member 32, the holding member 35 is tightened to fix the plate member 33. And the second skeleton member 22 are fixed. And if the rough angle of the 1st frame member 21 and the plate member 33 is determined by fitting with the 1st fitting member 31 and the 2nd fitting member 32, the holding member 35 will be loosened. By loosening the holding member 35, the plate member 33 and the second skeleton member 22 can be relatively rotated within the range of the arc hole 48 around the axis C1. Accordingly, the angle of the plate member 33 with respect to the second skeleton member 22 is finely adjusted, and the holding member 35 is tightened at the determined angle. As a result, the rotation angle between the plate member 33 and the second skeleton member 22 and the rotation angle between the first skeleton member 21 and the second skeleton member 22 should be determined with high accuracy without forming a rack portion or the like. Can do. The holding member 65 can also have the same configuration.

  In the embodiment, the example in which the article support apparatus 10 supports the laser irradiation apparatus 11 has been described. However, the article supported by the article support apparatus 10 is not limited thereto. Moreover, the shape of the 1st frame member 21, the 2nd frame member 22, and the 3rd frame member 60 is an example, and if it is the structure which adjusts the relative angle of two members, it will not restrict to said example.

  Furthermore, in one embodiment, an explanation will be given of an example in which the engagement between the first fitting member 31 and the second fitting member 32 is ensured by the pressing force of the elastic member 46 and the elastic member 47 when the tightening by the lock member 34 is released. did. However, a configuration is provided in which a thick portion capable of elastic deformation is provided near the radial center of the first fitting member 31 and the second fitting member 32, and the thick portion is deformed by tightening or releasing the tightening of the lock member 34. It is good. In this case, when the lock member 34 is tightened, the thick portion is deformed, and the first fitting member 31 and the second fitting member 32 are in close contact with each other in the fitted state. On the other hand, when the tightening of the lock member 34 is released, the first fitting member 31 and the second fitting member 32 are separated from each other by the elastic force of the thick portion, and are loosely fitted. Thereby, relative rotation between the first fitting member 31 and the second fitting member 32 is ensured while ensuring a click feeling due to the loose fitting between the first fitting member 31 and the second fitting member 32. Can be secured.

  In the drawings, 10 is an article support device, 11 is a laser irradiation device (article), 12 and 13 are rotation angle adjustment mechanisms, 21 is a first skeleton member (stay member), 22 is a second skeleton member (frame member), 31 and 61 are first fitting members, 32 and 62 are second fitting members, 33 and 63 are plate members, 34 and 64 are locking members, 35 and 65 are holding members, 41 and 71 are first tooth portions, 42 and 72 are second tooth portions, 46 and 47 are elastic members, 48 and 78 are arc hole portions (fine adjustment portions), 49 is a rack portion (plate side fine adjustment portion), 53 is a pinion portion, and 60 is a third portion. A frame member (frame member) is shown.

Claims (3)

A stay member, a frame member that rotates relative to the stay member about a rotation center, and a rotation angle adjustment mechanism that adjusts a relative rotation angle between the stay member and the frame member, An article support device for supporting an article of interest on one of a stay member or the frame member,
The rotation angle adjustment mechanism is
A first fitting member connected integrally with the stay member and having a first tooth portion on an end surface on the frame member side;
A second fitting member that is provided facing the first fitting member and has a second tooth portion that can be engaged with the first tooth portion on an end surface on the first fitting member side;
Connected integrally with the second fitting member, and is rotatable relative to the frame member between both ends in the circumferential direction with the rotation center as an axis and opposite to the rotation center. A plate member having a fine adjustment portion for finely adjusting a rotation angle between the frame member at an end on the side;
An elastic member for pressing the first fitting member and the second fitting member in a direction in which the first fitting member and the second fitting member are fitted to each other;
In the center of rotation, the stay member, the frame member, the first fitting member, the second fitting member, and the plate member are penetrated, and the integral stay member and the first fitting member are integrated. The second fitting member, the plate member, and the frame member are supported so as to be relatively rotatable, and the first fitting member and the second fitting together with the pressing force of the elastic member by rotating to one side. A locking member that tightens in a direction in which the member is fitted, and loosens in a direction to release the fitting between the first fitting member and the second fitting member by rotating to the other;
A holding member that holds the plate member and the frame member while determining a relative position in the fine adjustment unit;
Each time the meshing between the first tooth member and the second tooth member deviates in the rotation direction about the rotation center, the relative rotation angle of the plate member with respect to the stay member about the rotation center changes. Then, the plate member rotates about the rotation center, and the relative rotation angle between the plate member and the frame member is maintained while maintaining the engagement between the first fitting member and the second fitting member. An article supporting apparatus characterized by the fact that changes occur.   The article support device according to claim 1, wherein the plate member has an arc hole portion that extends in the rotation direction of the plate member with the rotation center as an axis and through which the holding member passes, in the fine adjustment portion. . The fine adjustment portion is provided on the plate member, extends in the rotation direction of the plate member with the rotation center as an axis, and has a rack portion on the inside thereof,
A pinion portion provided on the holding member and capable of meshing with the rack portion;
The article supporting apparatus according to claim 1, wherein the article supporting apparatus is provided.

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