JP2019044831A - Rotation supporting device and information terminal - Google Patents

Abstract

To provide a rotation supporting device capable of providing a smooth and stable use state, easily and quickly operating change-over means, and including the change-over means of a simple constitution with a small number of components.SOLUTION: A rotation supporting device includes sets of hinge portions 8 in each of which a first bearing portion 6a and a second bearing portion 7a are relatively rotatably connected through a hinge shaft 9 in a manner that they can be stopped and retained at an arbitrary rotation angle, at positions separating from each other, and a single stopper member 22 in which change-over means 5 for changing a rotation range of the second bearing portion 7a on the first bearing portion 6a is simultaneously brought into contact with both second bearing portions 7a, 7a side of both hinge portions 8, 8 to restrict rotation of both second bearing portions, and the single stopper member 22 is displaceable between a restriction position P1 and a restriction releasing position P2 further from the hinge shaft 9 with respect to the restriction position P2.SELECTED DRAWING: Figure 2

Description

  The present invention is suitable for use in rotatably supporting a pivoting member such as a display device with respect to a pivoted member constituting an apparatus main body of an information terminal such as a POS terminal. The present invention relates to a motion support device and an information terminal.

  The information terminal described above generally includes a display device as a pivoting member, a device body as a pivoted member serving as a support for the display device, and a display device that can pivot the display device relative to the device body And a pivotally supporting device that is stopably coupled at an arbitrary angle. The rotation support device includes an attachment member attached to the device body, a support member attached to the display device, and a hinge shaft pivotally connecting the support member to the attachment member. Have.

  Further, the rotation support device includes switching means for switching the rotation range of the support member on the mounting member. By operating this switching means, the rotation range of the display device with respect to the device body can be switched to a first rotation range and a second rotation range larger than the first rotation range. It is a thing.

  The first rotation range is, for example, a rotation range when the user of the information terminal performs a normal cash register operation (normal time). The person in charge of the cash register operation can adjust the tilt angle of the display device to an appropriate tilt angle according to his / her height and preferences within the first rotation range. Assuming that the rotation range of the display device is unlimited, when the person in charge of cash register work adjusts the inclination angle of the display device, the display device can be rotated larger than necessary, so that the usability is poor, or the display It is also conceivable that the device may touch other parts of the information terminal. For this reason, at normal times, it is preferable to restrict the pivoting range of the display device to the first pivoting range.

  On the other hand, the second rotation range is a rotation range in the case of largely rotating the display device beyond the first rotation range. When the rotation range of the display device is switched to the second rotation range, the display device can be largely rotated at the non-normal time such as maintenance of the information terminal. Therefore, the work area at the time of maintenance can be expanded, which is preferable.

  Various specific examples of the switching means are described in Patent Documents 1, 2, and 3.

JP, 2004-169901, A Patent No. 5398227 Patent No. 6138852 gazette

  In the above-mentioned Patent Documents 1 to 3, in the pivoting support device provided with a pair of left and right hinges for rotatably supporting the display device back and forth on the device main body, switching is made only to either the left or right hinge portion Means are provided (Embodiments 1 to 3 of Patent Document 1, Embodiment 5 and Patent Document 3), and switching means are individually provided for each of the pair of left and right hinges (Patent Document 2). It is a thing. For this reason, in the former, the rotation range regulation acts only on either the left or right side of the display device, and a load such as a twist acts on the hinge portion or the display device, so that it is smooth and stable. There is a problem that the state of use can not be obtained.

  In the latter case, when switching the rotation range of the display device, it is necessary to operate the switching means for each of the pair of left and right hinges. For this reason, the operation of the switching means is doubled as compared with the former, and there is a problem that the operation of the switching means is complicated.

  As switching means of another aspect, in Embodiment 4 of Patent Document 1 (see FIG. 15 of Patent Document 1), a pair of left and right stopper members (switching means) are provided corresponding to the pair of left and right hinges. It is described that the two stopper members are interlockingly connected by an operation transmission member in which the two interlocking rods are pivotally supported in a cross shape so that the stopper members interlock and interlock with each other.

  However, in the fourth embodiment of Patent Document 1, the right and left stopper members are separately formed, and the operation transmission member is formed of a combination of a plurality of parts. In addition to being complicated and having a large number of parts, there is also a problem in the smoothness of interlocking of both stopper members.

  The present invention has been made in view of the above-mentioned circumstances, and a smooth and stable use state can be obtained, and the switching means can be operated simply and quickly, and the switching means is simple in construction and has a small number of parts. It is an object of the present invention to provide a pivoting support device and an information terminal comprising:

  In order to solve the above-mentioned problems, in the rotary support device according to the present invention of claim 1, the first bearing portion and the second bearing portion are rotatably held relative to each other via a hinge shaft and stopped at an arbitrary rotation angle A pair of hinges which can be connected to each other are provided at mutually separated positions, and switching means for switching the rotation range of the second bearing on the first bearing is both the second bearings of both the hinges. A single movable stopper member which abuts simultaneously to restrict rotation of both second bearings, wherein the single movable stopper member is restricted from the restricting position and the hinge shaft from the restricting position It is characterized in that the position can be changed to the release position.

  According to the first aspect of the present invention, when the single movable stopper member is in the restricting position, the single stopper member simultaneously abuts on both the second bearing portions constituting the hinge portions. The rotation range of the bearing portion is restricted to a predetermined angle. Therefore, no load such as twist acts on the hinges at the time of regulating the rotation range. Thus, smooth and stable use can be obtained.

  On the other hand, when the position of the single movable stopper member is changed from the restricted position to the restricted release position, the restriction of the rotation range of both the second bearings by the single movable stopper member is released. By changing the position of the single movable stopper member, the rotation range of both the second bearing portions is controlled, so the switching means can be operated easily and quickly. Moreover, since it is the structure provided with the single movable stopper member, the structure is simple and the number of parts is small, which is preferable.

  The rotary support device according to the present invention of claim 2 is characterized in that it comprises elastic means for holding the single movable stopper member at the restricted position and the restricted release position in the one of claim 1. . In this case, since the single movable stopper member is held at the restriction position and the restriction release position by the elastic means, the position change of the single movable stopper member can be performed more simply and quickly.

  According to a third aspect of the present invention, in the rotary support device according to the first or second aspect, the mounting member having the first and second bearing portions is provided, and each of the pair of rising side plate portions of the mounting member The first bearing portion is connected in series, and the single movable stopper member is changed in position between the restricting position and the restriction releasing position on the pair of rising side plate portions.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, the upper surface of the pair of upright side plate portions is a lock for holding the single movable stopper member in the restriction release position. A part is formed.

  According to a fifth aspect of the present invention, in the rotary support device according to the third aspect, the pair of upright side plate portions are fitted in the restriction position for holding the single movable stopper member in the restriction position. A groove and a fitting groove for a control release position for holding the single movable stopper member at the control release position are formed.

  According to a sixth aspect of the present invention, in the third aspect of the present invention, the pair of rising side plate portions hold the single movable stopper member between the restricting position and the restricting release position. Long holes are provided.

  An information terminal according to the seventh aspect of the present invention is characterized in that the pivotal support device according to any one of the first to sixth aspects is provided between the device body and the display device.

It is a side view of an information terminal using a rotation support device concerning the present invention. FIG. 1 is an overall perspective view of a rotation support device of a first embodiment. It is a disassembled perspective view of FIG. It is a vertical side view of FIG. It is an expansion perspective view of the attachment member in FIG. It is a side view of the support member in FIG. FIG. 5 is a side view showing a front and back rotation range of the rotation support device of the first embodiment. It is an expansion perspective view of the horizontal hinge shaft in FIG. It is an expansion perspective view of the movable stopper member in FIG. (A) is a side view which shows the control position of the movable stopper member of Example 1, (b) is a side view which shows the control release position of the movable stopper member of Example 1. FIG. FIG. 7 is a side view showing a restricted state to a rear intermediate angular position of the support member in Example 1; FIG. 7 is a side view showing a holding state of the support member at the rear maximum angular position in Embodiment 1. FIG. 7 is an overall perspective view of a rotation support device of Example 2; It is a side view which shows the control position and the control cancellation | release position of a movable stopper member on the attachment member in FIG. FIG. 5 is a side view showing a front and back rotation range of the rotation support device of the first embodiment. It is an expansion perspective view of the movable stopper member in FIG. It is an expansion perspective view of the attachment member in FIG. FIG. 14 is a side view showing a restricted state to a rear intermediate angular position of the support member in Example 2; FIG. 14 is a side view showing a state of holding the support member at the rear maximum angular position in Example 2; FIG. 14 is an overall perspective view of a rotation support device of Example 3; FIG. 18 is a side view showing the back and forth rotation range of the rotation support device of the third embodiment. FIG. 21 is a side view showing a restricted state to a rear intermediate angular position of the support member in Example 3; FIG. 21 is a side view showing a holding state of the support member in the rear maximum angular position in Example 3; FIG. 21 is an enlarged perspective view of a movable stopper member in FIG. 20. FIG. 21 is a side view showing the regulated position and the regulated release position of the movable stopper member on the mounting member in FIG. 20. FIG. 21 is an enlarged perspective view of a mounting member in FIG. 20. It is a side view of the support member in FIG.

  In the best mode for carrying out the present invention, the first bearing portion 6a and the second bearing portion 7a are connected via the hinge shaft 9 so as to be relatively rotatable and capable of being stopped and held at any rotation angle. It is a rotation support device provided with switching means 5, 36, 40 having one set of hinge portions 8 at mutually separated positions and switching the rotation range of the second bearing portion 7 a on the first bearing portion 6 a. The switching means 5, 36, 40 are simultaneously brought into contact with the side of the second bearings 7a, 7a of both the hinges 8, 8 to limit the rotation of the second bearings 7a, 7a. 22, 37, 41 are provided. The single stopper members 22, 37, 41 can be changed in position to the restriction position P1 and the restriction release position P2 farther from the hinge shaft 9 than the restriction position P1.

  Hereinafter, a case where the present invention is applied to a POS terminal as an example of an information terminal will be described with reference to the attached drawings.

  In FIG. 1, the POS terminal 1 includes a display device 2 as a pivoting member, an apparatus main body 3 as a pivoted member serving as a support for the display device 2, and the display device 2 with respect to the device main body 3 And a pivotally supporting device 4 which is pivotally connected back and forth and is capable of being stopped and held at an arbitrary angle. The rotation support device 4 is interposed between the rear upper surface of the device body 3 and the lower rear surface of the display device 2.

  Further, the rotation support device 4 is provided with switching means 5 for switching the back and forth rotation range of the display device 2 on the device body 3. By operating this switching means 5, the first rotation range (between the display device shown by arrow A in FIG. 1 and the display device shown by arrow B in FIG. Rotation range) and a second rotation range larger than the first rotation range (a rotation range between the display device shown by arrow A in FIG. 1 and the display device shown by arrow C) It can be switched.

  The first rotation range is, for example, a rotation range when the user of the POS terminal 1 performs a normal cash register operation (normal time). The person in charge of the cash register operation can adjust the tilt angle of the display device 2 to an appropriate tilt angle according to his / her height and preference within the first rotation range. Assuming that the rotation range of the display device 2 is unlimited, when the person in charge of cash register work adjusts the inclination angle of the display device 2, the display device 2 can be rotated larger than necessary, so the usability is poor. In addition, there may be a disadvantage that the display device 2 contacts another part of the POS terminal 1. Therefore, at normal times, the rotation range of the display device 2 is restricted to the first rotation range.

  On the other hand, the second rotation range is a rotation range in the case of largely rotating the display device 2 backward beyond the first rotation range. When the rotation range of the display device 2 is switched to the second rotation range, the display device 2 can be largely rotated backward at the time of non-normal time such as maintenance of the POS terminal 1. Therefore, the work area at the time of maintenance can be expanded, which is preferable.

  As shown in FIGS. 2 and 3, the pivotal support device 4 includes an attachment member 6 attached to the device body 3 side, a support member 7 attached to the display device 4 side, and the attachment member 6 and the support member 7. And a pair of left and right hinges 8 and 8 disposed therebetween. The mounting member 6 includes a pair of left and right first bearings 6a, 6a. Corresponding to this, the support member 7 also includes a pair of left and right second bearings 7a, 7a. The first bearing 6a on the left side of the mounting member 6 and the second bearing 6a on the left side of the support member 7 can be rotated relative to each other via the left horizontal hinge shaft 9, and can be stopped at any rotation angle. The left hinge portion 8 is configured by being connected to Similarly, the first bearing portion 6a on the right side of the mounting member 6 and the second bearing portion 7a on the right side of the support member 7 can be rotated relative to each other via the right horizontal hinge shaft 9 and stopped at any rotation angle. By being connected possible, the right hinge 8 is configured. In the pivotal support device 4, the hinges 8, 8 are provided on the same axis, with the left and right horizontal hinge shafts 9, 9 located on the same axis, in pairs at positions mutually separated from each other.

  The mounting member 6 is mounted on the device body 3 so as to be horizontally rotatable about the vertical axis. As a result, the display device 2 can be rotated on the device body 3 also in a horizontal plane. A horizontal rotation mechanism 10 is interposed between the mounting member 6 and the device body 3. The horizontal rotation mechanism 10 has a horizontal rotation control means 11 for applying a predetermined rotation resistance to horizontal rotation of the mounting member 6. Hereinafter, the horizontal rotation mechanism 10 and the horizontal rotation control means 11 will be described mainly with reference to FIG.

  As shown in FIG. 3, a base plate 12 and a spacer 13 are interposed between the device body 3 and the mounting member 6. The base plate 12 is fixed to the device body 3 by a bolt (not shown). The spacer 13 is non-rotatably fixed on the base plate 12 via the vertical hinge shaft 14, and the mounting member 6 is horizontally rotatably mounted on the spacer 13 about the vertical hinge shaft 14.

  As shown in FIG. 3, the vertical hinge shaft 14 has a large diameter deformation portion 14a, an intermediate diameter deformation shaft portion 14b standing on the large diameter deformation portion 14a, and a small diameter standing on the medium diameter deformation shaft portion 14b. And a circular shaft portion 14c. Further, as shown in FIG. 4, the vertical hinge shaft 14 has a deformed projecting portion 14d on the lower surface of the large diameter deformed portion 14a. The deformation protrusion 14 d fits in the deformation hole 12 a formed in the base plate 12. Thereby, the vertical hinge shaft 14 is non-rotatably coupled to the base plate 12.

  As shown in FIG. 3, the spacer 13 has a deformation hole 13 a that fits into the large diameter deformation portion 14 a of the vertical hinge shaft 14. The spacer 13 is fixed to the base plate 12 in a state where the large diameter deformed portion 14a of the vertical hinge shaft 14 is received in the deformed hole 13a. A counterbore 13b is formed in the upper portion of the deformation hole 13a of the spacer 13. In the counterbore 13b, the first fixed friction washer 15 and the first rotational friction washer 16 are arranged in an overlapping manner in order from the bottom. It will be set up.

  The first fixed friction washer 15 is non-rotatably fixed to the longitudinal hinge shaft 14 by receiving the medium diameter deformation shaft portion 14 b of the longitudinal hinge shaft 14 in the deformation hole 15 a provided in the central axial direction. On the other hand, the first rotation friction washer 16 is freely rotatable with respect to the vertical hinge shaft 14 and locked to the mounting member 6 so as to always rotate integrally with the mounting member 6. That is, the first rotation friction washer 16 rotatably receives the medium diameter deformed shaft portion 14b of the vertical hinge shaft 14 in the circular hole 16a provided in the central axial direction. Further, the first rotation friction washer 16 is engaged with the mounting member 6 by locking the locking pieces 16 b, 16 b provided opposite to the edge thereof to the locking holes 6 b, 6 b provided in the mounting member 6. Always rotate together.

  A circular mounting hole 6 c is formed in the mounting member 6, and a medium diameter deformed shaft portion 14 b of the vertical hinge shaft 14 is relatively rotatably inserted into the circular mounting hole 6 c. A second rotation friction washer 17, a second fixed friction washer 18, and an appropriate number of washers 19 are provided in order from the bottom to the medium-diameter deformed shaft portion 14b of the vertical hinge shaft 14 projecting upward from the mounting member 6. Is attached. Then, the lock nut 20 is screwed from above the washer 19 to the male screw groove 14 e of the medium diameter deformed shaft portion 14 b of the vertical hinge shaft 14.

  Similar to the first rotation friction washer 16, the second rotation friction washer 17 is free to rotate with respect to the vertical hinge shaft 14, and the mounting member 6 is always rotated integrally with the mounting member 6. It is locked to. Further, the second fixed friction washer 18, like the first fixed friction washer 15, receives the medium diameter deformed shaft portion 14 b of the vertical hinge shaft 14 in the deformed hole 18 a provided in the central axial direction, thereby a vertical hinge shaft It is fixed non-rotatably to 14.

  In the above configuration, when the mounting member 6 is rotated on the spacer 13 about the vertical hinge shaft 14, the first and second rotation friction washers 16 and 17 rotate with the rotation of the mounting member 6, Since the first and second fixed friction washers 15 and 18 do not rotate, a predetermined friction torque is generated between the rotating friction washer and the fixed friction washer in contact with each other.

  The provision of two sets of fixed friction washers and rotational friction washers is merely a device for obtaining friction torque of a necessary and sufficient size. Therefore, as long as a friction torque of a preferable size can be obtained by only one combination of the fixed friction washer and the rotational friction washer, it is sufficient to provide it as much.

  The configurations of the horizontal rotation mechanism 10 and the horizontal rotation control means 11 need not be limited to those shown in the drawings, and may be replaced by other known ones.

  Next, the back and forth rotation mechanism 21 of the support member 7 on the mounting member 6 will be described.

  As shown in FIG. 5, the mounting member 6 has a mounting portion 6 d on the side of the device body 3 and a pair of left and right first bearing portions 6 a and 6 a that are erected from the mounting portion 6 d. The mounting portion 6d is mounted horizontally rotatably with respect to the vertical hinge shaft 14 by a circular mounting hole 6c. Each first bearing portion 6a has a deformation bearing hole 6e, and by receiving each horizontal hinge shaft 9 in each deformation bearing hole 6e, each first bearing portion 6e supports each horizontal hinge shaft 9 so that relative rotation is impossible. Do. At the front of each first bearing portion 6a, a fixed stopper portion 6f that protrudes outward in the left-right direction of the mounting member 6 is provided.

  As shown in FIGS. 2 and 3, the support member 7 includes an attachment portion 7 b on the display device 2 side, and a pair of left and right brackets 7 c connected to the attachment portion 7 b and supporting the attachment portion 7 b. Have. The attachment portion 7 b is attached to the display device 2 by a bolt (not shown). A lower portion of each bracket 7c has a second bearing 7a, and each horizontal hinge shaft 9 is relatively rotatably inserted in a bearing hole 7d formed in the second bearing 7a.

  Further, as shown in FIG. 6, on the outer periphery of the second bearing 7a of each bracket 7c, a front step 7e as a front locking portion, an intermediate step 7f as an intermediate locking portion, and a rear engagement. A rear side step 7g as a stop is formed. These step portions abut against the fixed stopper portion 6f of the mounting member 6 or the movable stopper member 22 as will be described in detail later, and the pivoting angle of the support member 7 is the maximum forward angle (arrow A in FIG. 7). It is restricted to the angle of the support member shown in, the middle rear angle (the angle of the support member shown by arrow B in FIG. 7) or the maximum rear angle (the angle of the support member shown by arrow C in FIG. 7).

  Each horizontal hinge shaft 9 is, as shown in an enlarged manner in FIG. 8, a circular flange 9a that abuts on the first bearing 6a of the mounting member 6, and a large diameter deformed shaft 9b having a substantially oval cross section. It has a small diameter deformation shaft 9c having a substantially oval cross section, and a male screw groove 9d formed on the tip end side of the small diameter deformation shaft 9c. The large diameter deformation shaft portion 9b is integrally formed at the center of one surface of the flange portion 9a, and the small diameter deformation shaft portion 9c is integrally formed at the center of the large diameter deformation shaft portion 9b. The height of the large diameter deformed shaft 9 b on one surface of the flange 9 a is the same as the thickness of the first bearing 6 a of the mounting member 6. The large diameter deformed shaft portion 9b fits into the deformed bearing hole 6e of the first bearing portion 6a.

  The front and rear rotation mechanism 21 includes a front and rear rotation control means 23 that allows the support member 7 to be stopped and held at an arbitrary angle with respect to the mounting member 6. For example, a friction type can be adopted as the front and rear rotation control means 23.

  That is, as shown in FIG. 3, the friction type back and forth rotation control means 23 comprises a first fixed friction washer 24 and a first rotation friction washer 25 disposed in contact with each other on the horizontal hinge shaft 9. Composed of a combination. In the illustrated example, in addition to the combination of the first fixed friction washer 24 and the first rotation friction washer 25, a combination of the second fixed friction washer 26 and the second rotation friction washer 27 is also provided. This is only a device for obtaining the necessary and sufficient friction torque. Therefore, as long as a friction torque of a preferable size can be obtained only by the combination of the first fixed friction washer 24 and the first rotation friction washer 25, it is sufficient to have only that. Further, as long as a necessary friction torque can be obtained, the horizontal rotation control means 23 may be provided only in one of the left and right hinges 8 and 8.

  The configuration of the horizontal rotation control means 23 need not be limited to that shown in the drawings, and may be replaced by another known configuration.

  In the horizontal rotation control means 23, the first fixed friction washer 24 has a circular hole 24a at the center in the axial direction for receiving the small diameter deformation shaft 9c of the horizontal hinge shaft 9, and is provided in the first bearing 6a of the mounting member 6. A locking piece 24b locked to the locking hole 6g is provided at the edge. Also, the second fixed friction washer 26 has a deformation hole 26a that fits the small diameter deformation shaft 9c of the horizontal hinge shaft 9, and by receiving the small diameter deformation shaft 9c of the horizontal hinge shaft 9 in this deformation hole 26a, It is non-rotatably fixed to the horizontal hinge shaft 9.

  On the other hand, the first and second rotation friction washers 25 and 27 are freely rotatable with respect to the horizontal hinge shaft 9 and engaged with the support member 7 so as to always rotate integrally with the support member 7. It is stopped. That is, the first and second rotational friction washers 25, 27 rotatably receive the small diameter deformation shaft 9c of the horizontal hinge shaft 9 in circular holes 25a, 27a provided in the axial direction of the central portion thereof. The first and second rotational friction washers 25 and 27 are engaged with the supporting member 7 by engaging the engaging pieces 25b and 27b provided at the edge thereof with the engaging holes 7h provided on the supporting member 7. Always rotate together.

  With the above configuration, when the support member 7 rotates with respect to the mounting member 6, the rotation friction washers 25 and 27 rotate with the rotation of the support member 7, but the fixed friction washers 24 and 26 do not rotate. Therefore, a predetermined friction torque is generated between the rotating friction washer and the fixed friction washer which are in contact with each other.

  The horizontal hinge shaft 9 includes, in order from the inside to the outside of the pair of left and right support members 7 and 7, the deformation hole 6 e of the first bearing portion 6 a of the mounting member 6 and the circular hole 24 a of the first fixed friction washer 24. The circular hole 25a of the rotational friction washer 25, the bearing hole 7d of the second bearing 7a of the support member 7, the circular hole 27a of the second rotational friction washer 27, the deformation hole 26a of the second fixed friction washer 26, the spring washer 28 Through the circular hole 28 a of the second embodiment and the deformation hole 29 a of the washer 29. Then, the lock nut 30 is screwed from above the washer 29 to the externally threaded groove 9 d at the end of the horizontal hinge shaft 9. Thereby, the support member 7 is supported on the mounting member 6 via the horizontal hinge shaft 9 so as to be able to rotate back and forth and to be able to stop and hold at any angle.

  Furthermore, the rotation support device 4 is provided with switching means 5 for switching the back and forth rotation angle of the support member 7 with respect to the mounting member 6. The switching means 5 indicates the rearward pivoting angle of the support member 7 with respect to the mounting member 6 at a rear intermediate angle (the angle of the support member shown by arrow B in FIG. 7) and a maximum backward angle (arrow C in FIG. 7). And the angle of the support member).

  The switching means 5 comprises a single movable stopper member 22. As shown in FIG. 9, the movable stopper member 22 has a plate-like mounting portion 22a, a pair of left and right stoppers 22b and 22b, a pair of left and right guides 22c and 22c, and a pair of left and right spring connection pieces 22d, And 22d. The pair of left and right stoppers 22b are formed to project upward from the front of the mounting portion 22a. The pair of left and right guides 22c are formed to project downward from the rear of the left and right sides of the attachment 22a. The pair of left and right spring connection pieces 22d are formed to project downward from the rear of the mounting portion 22a. Spring connection holes 22e are formed in each spring connection piece 22d.

  A mounting long hole 22 f extending in the front-rear direction is formed in the mounting portion 22 a of the movable stopper member 22. As shown in FIG. 4, the small diameter circular shaft portion 14c of the vertical hinge shaft 14 is inserted into the long mounting hole 22f from below. By attaching the dropout preventing washer 31 to the small diameter circular shaft portion 14c, the movable stopper member 22 is prevented from dropping out of the vertical hinge shaft 14. Further, as shown in FIG. 9, a fixing screw insertion groove 22g extending in the front-rear direction is formed in the mounting portion 22a.

  As shown in FIG. 5, the mounting member 6 to which the movable stopper member 22 is attached includes a pair of left and right upright side plates 6h and 6h, and a pair of right and left pair of right and left upright side plates 6h and 6h The first bearing portions 6a, 6a are connected in series. The upper surfaces of the pair of left and right upright side plates 6h, 6h are horizontal guide surfaces 6i, 6i, and the mounting portion 22a of the movable stopper member 22 is placed on the guide surfaces 6i, 6i. The pair of left and right guide portions 22c, 22c of the movable stopper member 22 is the mounting member 6 in a state where the movable stopper member 22 is mounted on the mounting member 6 so as to straddle the pair of left and right standing side plate portions 6h, 6h of the mounting member 6. It slidably contacts the left and right outer surfaces of the pair of left and right standing side plate portions 6h, 6h. The rear surface 6j of each first bearing portion 6a of the mounting member 6 is a vertical surface continuous with the upper surfaces 6i, 6i of the pair of left and right upright side plates 6h, 6h.

  As shown in FIG. 5, the mounting member 6 includes a pair of left and right spring connection pieces 6m and 6m with a spring connection hole 6k. Each spring connection piece 6m is formed on an upright front plate portion 6n which is bent at the front of the mounting member 6. A horizontal projecting piece 6q with a screw hole 6p is formed at the central portion in the left-right direction of the standing front plate portion 6n, and the movable stopper member 22 is fixed to the screw hole 6p of the horizontal projecting piece 6q. The fixing screw 32 (see FIGS. 3 and 4) is screwed.

  The movable stopper member 22 is engaged with the vertical hinge shaft 14 so as not to come off in a state of being mounted on the pair of left and right standing side plate portions 6 h and 6 h of the mounting member 6. It is fixed to six. That is, as shown in FIG. 3, the fixing screw 32 is inserted from above into the fixing screw insertion groove 22 g of the movable stopper member 22 and screwed into the screw hole 6 p of the horizontal projection 6 q of the mounting member 6. At the lower end of the stopper washer 33 is attached. By tightening the fixing screw 32, the movable stopper member 22 is fixed to the mounting member 6, and by loosening the fixing screw 32, the movable stopper member 22 can move in the front-rear direction on the mounting member 6.

  Between the movable stopper member 22 and the mounting member 6, as shown in FIG. 3, a pair of left and right tension coil springs 34, 34 as an example of the elastic means are provided in parallel with each other. Each tension coil spring 34 is bridged between the spring connection piece 22 d of the movable stopper member 22 and the spring connection piece 6 m of the mounting member 6. Each tension coil spring 34 always biases the movable stopper member 22 forward.

  As shown in FIG. 10, the movable stopper member 22 can be changed in position between the restriction position P1 and the restriction release position P2. As shown in FIG. 10A, the state in which the stopper portions 22b of the movable stopper member 22 abut the vertical rear surface 6j of the first bearings 6a of the mounting member 6 is the restriction position P1 of the movable stopper member 22. It is. On the other hand, as shown in FIG. 10 (b), the restriction release position P2 is a state where the movable stopper member 22 moves backward on each rising side plate portion 6h of the attachment member 6 and is separated from the restriction position P1 by a predetermined amount or more. . The restriction release position P2 of the movable stopper member 22 is at a position farther than the restriction position P1 by a predetermined amount or more from the deformation bearing hole 6e of the first bearing portion 6a of the mounting member 6. Here, as shown in FIG. 6, the predetermined amount refers to a dimension corresponding to the step of the rear side step 7 g formed in the second bearing 7 a of the support member 7.

  As shown in FIGS. 5 and 10, a pair of left and right locking projections 6r, 6r are formed on the mounting member 6 as locking portions for holding the movable stopper member 22 at the restriction release position P2. . Each locking projection 6 r is provided on the upper surface 6 i of each rising side plate 6 h of the mounting member 6 so as to project upward.

  Corresponding to this, as shown in FIGS. 9 and 10, the movable stopper member 22 is formed with a pair of left and right locking holes 6s, 6s that engage with the pair of left and right locking protrusions 6r, 6r. Ru. As shown in FIG. 9, each locking hole 6s is formed between the mounting portion 22a of the movable stopper member 22 and the pair of left and right guiding portions 22c. When the left and right locking projections 6r and 6r of the mounting member 6 are engaged with the left and right locking holes 6s and 6s of the movable stopper member 22, the movable stopper member 22 is configured by the left and right pair of tension coil springs 34. , 34 against the biasing force and held at the restriction release position P2.

  In the above configuration, as shown in FIG. 7, when the support member 7 is rotated forward, the fixed stopper portion 6 f of the attachment member 6 abuts on the front step 7 e of the support member 7. The forward pivot angle is restricted to the maximum forward angle (the angle of the support member indicated by arrow A in FIG. 7) which is a forward angle of 70 degrees from the 0 degree state in which it is horizontally laid backward. .

  Further, as shown in FIG. 11, when the support member 7 is rotated backward with the movable stopper member 22 fixed at the restricting position P1, the pair of left and right stopper portions 22b and 22b of the movable stopper member 22 are supported At the same time, the rotation angle of the support member 7 to the rear is rotated 25 degrees to the rear from the front maximum angle by simultaneously contacting the rear side steps 7g and 7g of the pair of left and right second bearings 7a and 7a. The rear intermediate angle (the angle of the support member indicated by the arrow B in FIG. 7) which is a backward state (a state in which it is turned forward 45 degrees from a 0 degree state where it is laid horizontally backward) is restricted.

  On the other hand, as shown in FIG. 12, when the movable stopper member 22 is displaced to the restriction release position P2, the rotation restriction of the support member 7 by the pair of left and right stopper portions 22b and 22b of the movable stopper member 22 is released. The pivoting angle to the rear of 7 is extended to the maximum rear angle beyond the middle rear angle. The maximum rear angle is a state in which the support member 7 is rotated backward by 55 degrees from the rear middle angle as shown by an arrow C in FIG. 7 (10 degrees further downward from the 0 degree state in which Degrees). As shown in FIG. 12, when the intermediate step 7 f of the support member 7 abuts on the fixed stopper 6 f of the attachment member 6, the rotation angle of the support member 7 to the rear is restricted to the rear maximum angle.

  According to the above configuration, when the movable stopper member 22 is at the restricting position P1, the pair of left and right stopper portions 22b of the movable stopper member 22 form the both second bearing portions 7a and 7a that constitute the hinge portions 8 and 8. By simultaneously abutting on the side, the rotation range of both the second bearing portions 7a and 7a is restricted to a predetermined normal use angle. For this reason, no load such as twist acts between the hinges 8 and 8 when the rotation range is restricted. Thus, smooth and stable use can be obtained.

  On the other hand, when the movable stopper member 22 is changed from the restriction position P1 to the restriction release position P2, the restriction of the rotation range of both the second bearings 7a, 7a by the pair of left and right stoppers 22b, 22b is released. By changing the position of the single movable stopper member 22, the rotation range of both the second bearing portions 7 a and 7 a is controlled, so the operation of the switching means 5 can be performed easily and quickly. Further, since the single movable stopper member 22 is provided, the structure is simple and the number of parts is small, which is preferable.

  In contrast to the above embodiment, the movable stopper member 22 is disposed on the support member 7 side, and the rear side step 7g as a locking portion in contact with the movable stopper member 22 is formed on the attachment member 6 side. You may do it.

  Further, in the first embodiment, a pair of left and right tension coil springs 34, 34 as elastic means are provided, and the movable stopper member 22 is held at the regulation position P1 and the regulation release position P2 by these tension coil springs 34, 34. . For this reason, it is also possible to omit fixation of the movable stopper member 22 by the fixing screw 32. By omitting the fixing screw 32, the position change of the movable stopper member 22 can be performed more easily and quickly.

  Furthermore, a pair of left and right tension coil springs 34, 34 are omitted, and a plate spring (not shown) is interposed between the mounting portion 22a of the movable stopper member 22 and the mounting portion 6d of the mounting member 6 When sliding the stopper member 22 between the restriction position P1 and the restriction release position P2, a click sensation may be obtained.

  Next, Example 2 of the present invention will be described. The pivoting support device 35 of the second embodiment is provided with switching means 36 of a configuration different from that of the first embodiment. In the second embodiment, the same parts as those of the first embodiment are denoted by the same reference numerals and the description thereof is omitted. Therefore, the description of the first embodiment should be referred to.

  As shown in FIG. 13, in the pivotal support device 35 of the second embodiment, the switching means 36 includes a single movable stopper member 37. The movable stopper member 37 is a rod-like member having an L-shaped cross section as shown in FIG. The movable stopper member 37 is formed between plate-like stopper portions 37a and 37a formed at upper ends of both ends, fixed piece portions 37b and 37b projecting downward from the front of each stopper portion 37a, and the stopper portions 37a and 37a. And a connecting portion 37c extending in Two spring connection holes 37d and 37d are formed in the connecting portion 37c.

  The movable stopper member 37 is fixed to the mounting member 38 so as to be positionally changeable between the restricting position P1 and the restricting release position P1, as shown in FIG. In order to fix the movable stopper member 37 so as to be changeable in position, as shown in FIGS. 14 and 17, each of the pair of left and right standing side plate portions 6h and 6h of the mounting member 38 has a fitting groove 38a for restricting position and A regulation release position fitting groove 38b is provided. The fixed piece portions 37b of the movable stopper member 37 are fitted into these fitting grooves 38a and 38b. The restriction release position fitting groove 38b is located farther from the deformation bearing hole 6e of the first bearing portion 6a of the mounting member 38 than the restriction position fitting groove 38a.

  As shown in FIG. 13, the movable stopper member 37 is held at the restriction position P1 and the restriction release position P2 by being biased by the pair of left and right tension coil springs 34, 34 as an example of the elastic means. The pair of left and right tension coil springs 34, 34 are bridged in parallel with each other between the spring connection holes 37 d, 37 d of the movable stopper member 37 and the mounting portion 6 d of the mounting member 38. A pair of left and right tension coil springs 34, 34, fixed pieces 37d, 37d of the movable stopper member 37, fitting grooves 38a, 38a for restricting positions formed on the mounting member 38, and fitting grooves 38b for restricting position , 38b form a fixing mechanism for fixing the movable stopper member 37 to the restriction position P1 and the restriction release position P2.

  In FIG. 16, the two notches 37e, 37e formed in the movable stopper member 37 are for avoiding the interference between the movable stopper member 37 and the pair of left and right tension coil springs 34, 34.

  In the above-described configuration, as shown by a solid line in FIG. 14, a state where the fixed piece portion 37 b of the movable stopper member 37 is fitted to the restricting position fitting groove 38 a is the restricting position P1 of the movable stopper member 37. Conversely, as shown by a two-dot chain line in FIG. 14, the state where the fixed piece portion 37 b of the movable stopper member 37 is fitted to the restriction releasing position fitting groove 38 b is the restriction releasing position P 2 of the movable stopper member 37. .

  Then, as shown in FIG. 18, when the movable stopper member 37 is positioned at the restriction position P1 and the support member 7 is rotated backward, the stopper portion 37 a of the movable stopper member 37 is the second bearing portion of the support member 7. By coming into contact with the rear side step 7g of 7a, the rotation angle of the support member 7 to the rear is 25 degrees from the front maximum angle to the rear (from 0 degree state where it is laid horizontally to the rear) It is restricted to a rear intermediate angle (an angle of the support member indicated by an arrow B in FIG. 15) which is a state rotated 45 degrees forward).

  On the other hand, as shown in FIG. 19, when the movable stopper member 37 is displaced to the restriction release position P2, the rotation restriction of the support member 7 by the stopper portion 37a of the movable stopper member 37 is released, and the support member 7 is moved backward. The pivoting angle is expanded to the rear maximum angle (the angle of the support member indicated by arrow C in FIG. 15) exceeding the rear intermediate angle. The maximum rear angle is a state in which the support member 7 is rotated backward by 55 degrees from the rear middle angle as shown in FIG. State). When the intermediate stepped portion 7f of the support member 7 abuts on the fixed stopper portion 6f of the attachment member 38, the rearward rotation angle of the support member 7 is restricted to the maximum rear angle.

  As in the first embodiment, as shown in FIG. 15, the fixed stopper portion 6f of the mounting member 38 is attached to the front step 7e of the second bearing portion 7a of the support member 7 as shown in FIG. By being abutted, it is always regulated to the maximum forward angle which is a state of being rotated forward 70 degrees from the state of 0 degrees which is horizontally laid back.

  According to the above configuration, when the movable stopper member 37 is at the restricting position P1, the stopper portions 37a, 37a at both ends of the movable stopper member 37 are on the both second bearing portions 7a, 7a side constituting the hinge portions 8, 8. At the same time, the rotational range of both the second bearing portions 7a and 7a is restricted to a predetermined angle. For this reason, no load such as twist acts between the hinges 8 and 8 when the rotation range is restricted. Thus, smooth and stable use can be obtained.

  On the other hand, when the movable stopper member 37 is changed from the restricting position P1 to the restricting release position P2, the restriction of the rotation range of both the second bearings 7a, 7a by the stoppers 37a, 37a is released. By changing the position of the single movable stopper member 37, the rotation range of both the second bearing portions 7a and 7a is controlled, so that the operation of the switching means 36 can be performed easily and quickly. Further, since the single movable stopper member 37 is provided, the structure is simple and the number of parts is small, which is preferable.

  Further, since the movable stopper member 37 is fixed to the restriction position P1 and the restriction release position P2 by the pair of left and right tension coil springs 34 as elastic means, the position change of the movable stopper member 37 can be performed easily and quickly.

  Contrary to the above-described embodiment, the movable stopper member 37 is disposed on the support member 7 side, and the rear side step portion 7g as a locking portion in contact with the movable stopper member 37 is formed on the attachment member 38 side. It is also good.

  A third embodiment of the present invention will now be described. The pivoting support device 39 of the third embodiment is provided with switching means 40 having a configuration different from that of the first and second embodiments. In the third embodiment, the same parts as those of the first and second embodiments are denoted by the same reference numerals and the description thereof is omitted, so the description of the first and second embodiments should be referred to.

  As shown in FIG. 20, in the pivotal support device 39 of the third embodiment, the switching means 40 is provided with a single movable stopper member 41. As shown in FIG. 24, the movable stopper member 41 includes a shaft 41a having a circular cross section extending in the left-right direction, and a shaft support plate 41b for supporting the shaft 41a. Both ends of the shaft 41a protruding leftward and rightward from the pair of left and right brackets 41c, 41c of the shaft support plate 41b are stopper portions 41d, 41d. A fixing screw insertion hole 41e is formed in the shaft support plate 41b as a fixing portion to the mounting member 42 side. The movable stopper member 41 is fixed to the mounting member 42 side by screwing the fixing screw 43 inserted into the fixing screw insertion hole 41 e to the mounting member 42 side. In the example of FIG. 20, a screw hole (not shown) is formed on the upper end surface of the vertical hinge shaft 14, and the fixing screw 43 is screwed to the screw hole.

  The movable stopper member 41 is attached to the mounting member 42 so as to be positionally changeable between the restricting position P1 and the restricting release position P2, as shown in FIG. In order to attach the movable stopper member 41, as shown in FIG. 26, long holes 42a for bearings are provided in each of the pair of left and right upright side plate portions 6h, 6h of the attachment member 42. The pair of left and right long holes 42a and 42a have the same shape curved in a V-shape, and are formed in the pair of left and right standing side plate portions 6h and 6h of the mounting member 42 with the bent portions facing upward.

  As shown in FIG. 25, in each long hole 42a, a state in which each stopper portion 41d of the movable stopper member 41 abuts on a front end portion 42b close to the deformed bearing hole 6e of each first bearing portion 6a of the mounting member 42 is This is the restriction position P1 of the movable stopper member 41. Further, in each long hole 42a, the restriction release position of the movable stopper member 41 is a state in which each stopper portion 41d of the movable stopper member 41 abuts on the rear end portion 42c far from the deformation bearing hole 6e of each first bearing portion 6a. It is P2.

  As shown in FIG. 26, in the mounting member 42, a first fixed stopper 42d and a second fixed stopper 42e are formed around each first bearing 6a. The first fixed stopper portions 42 d are formed to project leftward and rightward from the front portions of the respective first bearing portions 6 a. On the other hand, the second fixed stopper portion 42e is formed as a step portion at the rear position of the deformed bearing hole 6e of each first bearing portion 6a.

  As shown in FIG. 27, the support member 44 has a front locking portion 44a, an intermediate locking portion 44b, and a rear locking portion 44c on the outer periphery of the second bearing 7a of the bracket 7c. The front locking portion 44a and the rear locking portion 44c are formed in the shape of a step on the outer periphery of the second bearing portion 7a of the bracket 7c, and as shown in FIG. 20, the middle locking portion 44b is a second bearing portion. It is formed by bending leftward and rightward on the outer periphery of 7a.

  In the above configuration, when the support member 44 is rotated forward, the first fixed stopper portion 42d of the attachment member 42 abuts on the front locking portion 44a of the support member 44, whereby the support member 44 is rotated forward. The movement angle is restricted to a front maximum angle which is a state of being rotated forward 70 degrees from a state of 0 degree horizontally laid back as shown by an arrow A in FIG.

  Further, as shown in FIG. 22, when the movable stopper member 41 is positioned at the restricting position P1 and the support member 44 is rotated backward, the stopper portion 41d of the movable stopper member 41 is engaged with the rear side of the support member 44. By contacting the portion 44c, the rearward rotation angle of the support member 44 is rotated 25 degrees backward from the front maximum angle (45 degrees from the 0 degree state in which the horizontal position is turned backward) The rear intermediate angle (the angle of the support member of arrow B in FIG. 21) which is moved) is restricted.

  On the other hand, as shown in FIG. 23, when the fixed screw 43 is removed and the shaft support plate 41b of the movable stopper member 41 is pulled backward to displace the movable stopper member 41 to the restriction release position P2, the stopper of the movable stopper member 41 is The rotation restriction of the support member 44 by the portion 41 d is released, and the rotation angle to the rear of the support member 44 is expanded to the maximum rear angle exceeding the rear middle angle. The maximum rear angle is a state in which the support member 44 is rotated backward 55 degrees from the rear middle angle as shown by an arrow C in FIG. Degrees). When the intermediate locking portion 44 b of the support member 44 abuts on the second fixed stopper portion 42 e of the attachment member 42 from the top, the rearward rotation angle of the support member 44 is restricted to the maximum rear angle.

  According to the above configuration, when the movable stopper member 41 is at the restricting position P1, the stopper portions 41d, 41d at both ends of the movable stopper member 41 are on both the second bearing portions 7a, 7a side constituting the hinge portions 8, 8. At the same time, the rotational range of both the second bearing portions 7a and 7a is restricted to a predetermined angle. For this reason, no load such as twist acts between the hinges 8 and 8 when the rotation range is restricted. Thus, smooth and stable use can be obtained.

  On the other hand, when the movable stopper member 41 is changed from the restriction position P1 to the restriction release position P2, the restriction of the rotation range of the second bearings 7a and 7a by the stoppers 41d and 41d is released. By changing the position of the single movable stopper member 41, the rotation range of both the second bearing portions 7a, 7a is controlled, so that the operation of the switching means 40 can be performed easily and quickly. Further, since the single movable stopper member 41 is provided, the structure is simple and the number of parts is small, which is preferable.

  Contrary to the above embodiment, the movable stopper member 41 may be disposed on the side of the support member 44, and the rear locking portion 44c in contact with the movable stopper member 41 may be formed on the attachment member 42 side.

  Since the present invention is configured as described above, it can be suitably used as a pivoting support device capable of always stable operation with a simple configuration and an information terminal using the pivoting support device.

4 Rotation Support Device (Example 1)
5 Switching means (Example 1)
6 mounting member 6a first bearing portion 6h, 6h pair of standing side plate portions 6r locking portion 7a first bearing portion 8 hinge portion 9 hinge shaft 22 single movable stopper member (Example 1)
34 Elastic means 35 Rotational support device (Example 2)
36 Switching Means (Example 2)
37 Single Movable Stopper Member (Example 2)
38a Regulating position fitting groove 38b Regulating position fitting groove 39 Rotational support device (Example 3)
40 Switching Means (Example 3)
41 Single movable stopper member (Example 3)
42a (For bearings) Long hole P1 regulated position P2 regulated release position

Claims (7)

  The first bearing portion and the second bearing portion are provided with a pair of hinge portions connected to each other at mutually separated positions, the first bearing portion and the second bearing portion being connected rotatably relative to each other via a hinge shaft and stopably holdable at an arbitrary rotation angle. Switching means for switching the rotation range of the second bearing portion on one bearing portion simultaneously abuts on both the second bearing portions side of both hinge portions to restrict the rotation of both the second bearing portions A pivot support device comprising a stopper member, wherein the single movable stopper member can be repositioned to a regulated position and a regulated release position farther from the hinge shaft than the regulated position.   The rotation support device according to claim 1, further comprising elastic means for holding the single movable stopper member in the restricted position and the restricted position.   The mounting member has both the first bearing portions, the first bearing portions are connected to each of the pair of rising side plate portions of the mounting member, and the single movable stopper member is the pair of rising side plates The rotation support device according to claim 1, wherein the position is changed between the restricted position and the restricted position on the part.   The rotation support device according to claim 3, wherein a locking portion for holding the single movable stopper member at the restriction release position is formed on the upper surface of the pair of standing side plate portions.   A control position fitting groove for holding the single movable stopper member at the restricting position and a restriction for holding the single movable stopper member at the restriction release position in the pair of rising side plate portions The rotation support device according to claim 3, wherein a release position fitting groove is formed.   The rotation support device according to claim 3, wherein long holes for holding the single movable stopper member between the restricted position and the restricted position are provided in the pair of standing side plate parts.   An information terminal comprising the pivot support device according to any one of claims 1 to 6 between a device body and a display device.

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