JP2019199928A - Opening/closing device of opening/closing member and opened/closed member - Google Patents

Abstract

To provide an opening/closing device of an opening/closing member, particularly such as an in-vehicle monitor, in which a necessary friction torque can be obtained, and further the harness is not exposed to the outside, too.SOLUTION: An opening/closing device of an opening/closing member is constituted of a mounting member 1 mounted to an opened/closed member side, a first shaft member 2 rotatably mounted to this mounting member and having a through-hole penetrating through the center axis direction where the opening/closing member is mounted, and rotation control means 3 for controlling the rotation of this first shaft member. This rotation control means is constituted of friction torque fluctuation means 4, interlocking means 5 for making this friction torque fluctuation means interlock each other with the first shaft member, and stopper means for regulating a rotation angle of the first shaft member. The friction torque fluctuation means is constituted of a second shaft member 14 provided adjacently to the first shaft member in the mounting member, cam means 15 provided at this second shaft member, pressurizing means 7 for pressurizing this cam means, and suction means 8 of the first shaft member.SELECTED DRAWING: Figure 8

Description

  INDUSTRIAL APPLICABILITY The present invention particularly relates to an opening / closing device for an opening / closing body, an automobile using the opening / closing device, and the like suitable for use in attaching an in-vehicle monitor, which is a kind of opening / closing body, to the rear of a backrest of a front seat of an automobile. It is related with the to-be-opened-closed body which consists of various apparatuses.

  2. Description of the Related Art Conventionally, devices described in Patent Documents 1 to 3 below are known as support devices that support an on-vehicle monitor mounted in the vicinity of a seat inside an automobile so as to be swingable or openable. Among these, the mounting structure of the in-vehicle monitor shown in Patent Documents 1 and 2 uses a solid one with no insertion hole for harness insertion in the hinge shaft, and the one shown in Patent Document 3 is a hinge shaft. An insertion hole for a harness is provided so as to penetrate the axial direction, and friction torque generating means using a friction washer, a wave washer, or the like is provided on the hinge shaft.

  However, those described in Patent Documents 1 and 2 have a problem that the harness is exposed to the outside, which is not preferable in terms of design. Moreover, in the thing of patent document 3, although the insertion hole for the insertion of a harness is provided in the axial direction of a hinge shaft, it is avoided that a harness exposes outside, In this case, a normal hinge It is necessary to use a shaft with a diameter that is larger than that of the shaft, and the effective area in the radial direction of the members constituting the friction torque generating means such as friction washers and wave washers must be reduced. There is a problem that it is difficult to obtain a friction torque for stably stopping the monitor at a necessary angle. In addition, as described in the following patent document, the one provided with the friction torque generating means on the hinge shaft 1 axis has a long axial length of the hinge shaft, so that the entire width of the switchgear becomes long. This has been an obstacle to reducing the width of the body to be opened and closed attached to the switchgear and making it compact. Further, in recent years, an FPC (flexible substrate) is used instead of a harness, and an opening / closing device corresponding to this FPC is also required.

JP 2014-177235 A JP 2007-308124 A JP 2000-330475 A

  Therefore, an object of the present invention is to provide a rotation control means that is separate from the first shaft member, even if the first shaft member that supports the opening / closing body and axially penetrates the insertion hole through which the harness passes is used. By providing the first shaft member and the rotation control means, the required friction torque can be obtained, the harness is not exposed to the outside, and the width of the in-vehicle monitor is reduced to make it compact. In addition, it is intended to provide an open / close device for an open / close body such as an in-vehicle monitor, which can also be used for FPC.

  In the following description, an on-vehicle monitor opening / closing device will be described as an example. However, the opening / closing device according to the present invention is not limited to this, and can be widely used as an opening / closing device for electronic devices such as display devices. Therefore, an electronic device that is opened and closed using the opening and closing device according to the present invention is read as an opening and closing body, and a side to which the opening and closing body is attached is referred to as an opening and closing body.

  In order to achieve the above-described object, an opening / closing device for an opening / closing body according to claim 1 of the present invention is attached to an opening / closing body side, and is attached rotatably to the attachment member and the opening / closing body. However, it is composed of a first shaft member having a through hole penetrating through its central axial direction, and a rotation control means for controlling the rotation of the first shaft member, and this rotation control means is a friction torque varying means, The interlocking means for interlocking the friction torque varying means and the first shaft member and the stopper means for restricting the rotation angle of the first shaft member, and the friction torque varying means is connected to the mounting member on the first shaft. The second shaft member provided adjacent to the member, cam means provided on the second shaft member, pressurizing means for pressurizing the cam means, and suction means And it features.

  An opening / closing device for an opening / closing body according to claim 2 of the present invention is characterized in that the mounting member is composed of a mounting plate and a side plate bent from the mounting plate.

  An opening / closing device for an opening / closing body according to a third aspect of the present invention is characterized in that the first shaft member is rotatably attached to the side plate at one end thereof.

  An opening / closing device for an opening / closing body according to a fourth aspect of the present invention is characterized in that the interlocking means is rotatably attached to the first shaft member together with the first gear and the second shaft member is rotatably attached to the first gear. It is characterized by comprising a second gear meshing with one gear.

  An opening / closing device for an opening / closing body according to claim 5 of the present invention is characterized in that the stopper means is provided on a stopper piece provided on the side plate and a first gear rotatably attached to the first shaft member. The uniaxial member is constituted by a convex portion that contacts the stopper piece at a predetermined rotation angle.

  In an opening / closing device for an opening / closing body according to a sixth aspect of the present invention, the cam means is secondly engaged with a first gear rotatably attached to the second shaft member and rotatably attached to the first shaft member. The outer periphery side recess and the inner periphery side recess provided on the side surface of the gear, and a pair of outer periphery side first step portions and inner periphery respectively provided after the end portions of the outer periphery side recess and the inner periphery side recess. A rotating cam portion having an outer peripheral side second step portion and an inner peripheral side second step portion provided subsequent to the outer peripheral side first step portion and the inner peripheral side first step portion; A slide cam member having a fixed cam portion comprising an outer peripheral convex portion and an inner peripheral convex portion on the side facing the rotating cam portion that is non-rotatably attached to the second shaft member and slidable in the axial direction; It is characterized by comprising.

In the opening / closing device of the opening / closing body according to claim 7 of the present invention, the friction torque varying means is
The suction means includes a rotating cam portion having an outer peripheral side concave portion and an inner peripheral side concave portion provided on a side surface of the second gear rotatably attached to the second shaft member constituting the cam means, A slide cam member having a fixed cam portion including an outer peripheral convex portion and an inner peripheral convex portion on a side facing the rotating cam portion which is non-rotatably attached to the second shaft member and slidable in the axial direction; It is characterized by comprising.

  An object to be opened and closed according to claim 8 of the present invention is characterized in that the opening / closing device for an opening and closing body according to any one of claims 1 to 7 is used.

  According to the first aspect of the present invention, the harness is not exposed to the outside by passing the harness through the insertion hole provided in the first shaft member. By controlling the rotation of the shaft member, the rotational torque of the opening / closing body attached to the first shaft member so as to rotate together can be controlled. Furthermore, since the friction torque changing means is provided separately from the first shaft member, the width of the opening / closing device can be reduced, so that the width of the opening / closing body such as a monitor using the opening / closing device can be reduced, and the size reduction can be achieved. It is something that can be done. In addition, since the friction torque changing means is not provided on the first shaft member, there is a margin in the axial width, and an FPC (flexible substrate) can be attached thereto.

  According to the second aspect of the invention, the manufacturing cost can be reduced by simplifying the structure of the mounting member.

  According to invention of Claim 3, since the structure which attaches a 1st shaft member to the side plate of an attachment member rotatably is simple, manufacturing cost can be lowered | hung.

  According to the invention of claim 4, since the structure of the interlocking means is simple, this can also reduce the manufacturing cost.

  According to the invention of claim 5, the rotation angle of the first shaft member is regulated and the opening / closing angle of the opening / closing member is controlled by the stopper means comprising the stopper piece provided on the side plate of the mounting member and the convex portion provided on the first gear. It can be controlled.

  According to invention of Claim 6, the said cam means was provided following the outer peripheral side recessed part and the inner peripheral side recessed part provided in the side surface of the said 2nd gear, these outer peripheral side recessed parts, and an inner peripheral side recessed part. The outer periphery side first step portion, the inner periphery side first slide cam member, the outer periphery side first step portion, the outer periphery side second step portion provided following the inner periphery side first slide cam member, and the inner periphery side second. A rotating cam portion having a stepped portion, and an outer peripheral convex portion and an inner peripheral convex portion on the side facing the rotating cam portion that is non-rotatably attached to the second shaft member and slidable in the axial direction. By comprising the slide cam member having the fixed cam portion, the rotational torque of the first gear can be varied via the second gear.

  According to the seventh aspect of the present invention, the suction means is provided on the side surface of the second gear constituting the cam means, the rotating cam portion having the outer peripheral recess and the inner peripheral recess, and the second shaft member. A slide cam member having a fixed cam portion formed of an outer peripheral convex portion and an inner peripheral convex portion on a side facing the rotating cam portion that is rotatably and slidably mounted in the axial direction; The suction function is exhibited at a predetermined rotation angle of the first shaft member from the second gear through the first gear, and the operability of the opening / closing body can be improved.

  According to the eighth aspect of the present invention, it is possible to provide a body to be opened / closed using an opening / closing device for an opening / closing body with good operability.

The state which attached the opening-closing body to the to-be-opened body using the opening / closing apparatus which concerns on this invention is shown, (a) is the front view, (b) is the left view. FIG. 3 is an enlarged side view of the opening / closing device of FIG. 1 viewed from the direction of line AA in FIG. 2 with the opening / closing body closed. It is the enlarged front view which looked at the switchgear shown in Drawing 1 from the front side. It is the enlarged plan view which looked at the switchgear shown in Drawing 1 from the plane side. It is a perspective view of the switchgear simple substance concerning the present invention. It is the perspective view which looked at the switchgear simple substance concerning this invention from the angle different from FIG. It is a plane sectional view of the switchgear simple substance concerning the present invention. It is a disassembled perspective view of the switchgear concerning the present invention. It is a perspective view of the attachment member of the switchgear concerning the present invention. The 1st shaft member of the switchgear concerning the present invention is shown, (a) is a perspective view, (b) is a longitudinal section, (c) is a side view seen from the support member side, (d) is from the attachment member side FIG. The 2nd shaft member of the switchgear concerning the present invention is shown, (a) is a perspective view, (b) is a front view, (c) is a right view. The 1st gear of the switchgear concerning the present invention is shown, (a) is a perspective view and (b) is a top view. The 2nd gear of the switchgear which concerns on this invention is shown, (a) is the perspective view seen from the one surface side, (b) is the perspective view seen from the other surface side, (c) It is a longitudinal cross-sectional view. The slide cam member of the switchgear concerning the present invention is shown, (a) is the perspective view seen from the one surface side, and (b) is the perspective view seen from the other surface side. The operation of the switchgear according to the present invention will be described. (A) shows the closed state of the opening / closing body with an opening angle of 0 degrees, and (b) shows the opened state of the opening / closing body with an opening angle of 10 degrees. . The operation of the switchgear according to the present invention will be described. (A) shows the open state of the open / close body at an opening angle of 100 degrees, and (b) shows the open state of the open / close body at an open angle of 210 degrees. The operation of the switchgear according to the present invention will be described. (A) illustrates the open / close angle of the switchgear and the state of torque fluctuation, and (b) schematically illustrates this. It is explanatory drawing which shows the operation | movement of the cam means of the opening / closing apparatus which concerns on this invention in simulation.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As described above, in the following description, a monitor opening / closing device such as a television receiver attached to the back side of the backrest portion of the front seat of the automobile will be described as an example. However, the present invention is not limited to this. It can be used as a display device such as a general personal computer, other display devices, or a lid opening / closing device. Therefore, in the present specification, claims, etc., the monitor portion is read as an opening / closing body, and the backrest portion is called an opening / closing body.

  Further, the mounting member, the first shaft member, the second shaft member, the support member, the second shaft member, the rotation control means, the friction torque fluctuation means, the interlocking means, the cam means, which are described in the present specification and claims. Terms such as suction means and stopper means are not limited to the forms and structures given in the examples. It encompasses a broader concept than that described below.

  According to the drawing, in FIG. 1, on the back side of the backrest portion a of the front seat (opened / closed body A) of the automobile, an opening / closing body C comprising a monitor via a pair of opening / closing devices B and B ′. It is attached so that it can be opened and closed from the state accommodated in the accommodating part D provided in a to the open position in use. The pair of opening / closing devices B and B ′ basically have the same configuration, but one of them has a different configuration, for example, only one shaft without using two shafts, A case in which the insertion hole of the harness penetrating in the axial direction is not provided is also conceivable. However, in the following description, the left opening / closing device B will be described as having the same configuration on the left and right, and description of the right opening / closing device B 'will be omitted.

  As shown in FIG. 1B, in the closed state of the opening / closing body C, the opening / closing body C is provided on the back side of the backrest portion a of the opening / closing body A composed of a front seat, Although it is housed in D and does not protrude to the rear part of the backrest part a, it is not limited to this.

  As shown in FIGS. 2 to 14, an opening / closing device B according to the present invention is provided with an attachment member 1 attached to an attachment plate portion E on an opening / closing body A side, and is attached to the attachment member 1 so as to be rotatable and open / close. The first shaft member 2 having a through hole 2a penetrating the central axial direction of the body C attached thereto, and a rotation control means 3 for controlling the rotation of the first shaft member 2, this rotation control The means 3 includes friction torque changing means 4, interlocking means 5 for transmitting the rotational driving force of the first shaft member 2 to the friction torque changing means 4, and stopper means 6 for restricting the rotation angle of the first shaft member 2. The friction torque changing means 4 is configured by the second shaft member 14 provided adjacent to the first shaft member 2 with respect to the mounting member 1 and the cam means provided on the second shaft member 14. 15 and this A pressing means 7 for pressurizing the arm means 15, and the suction means 8, in being configured.

  The attachment member 1 is made of a metal plate such as SUS. In particular, as shown in FIGS. 8 and 9, the mounting member 1 has a substantially L-shaped cross section including a mounting plate 1a and a side plate 1b that is bent by pressing from the mounting plate 1a. The mounting plate 1a is attached to the open / close body A side with mounting screws 1d and 1d through mounting holes 1c and 1c provided there. The side plate 1b has a bearing hole 1e for rotatably mounting the first shaft member 2 on the flat surface portion thereof, a mounting hole 1f for fixing the second shaft member 14 adjacent to the bearing hole 1e, and a reinforcing plate 25 described later. A mounting hole 1g is provided. At the top of the side plate 1b, a stopper piece 1h is further bent adjacent to the bearing hole 1e. The configuration of the mounting member 1 can be manufactured at low cost because the configuration of the embodiment is simple, but is not limited to this configuration, and it has both side plates arranged side by side with a predetermined interval. Desirable in strength. Furthermore, the material is not limited to a metal such as SUS, and may be made of a synthetic resin having mechanical strength such as ABS.

  The first shaft member 2 (corresponding to a well-known hinge shaft) has a configuration as shown in FIGS. 8 and 10 in particular, and will be described later which is drawn out from the opening / closing body C side through the central axial direction. Similarly, it is a metal cylinder like SUS provided with a through hole 2a through which the harness H and the like are passed. The first shaft member 2 is provided following the central shaft portion 2b, the first deformation portion 2c provided on the attachment member 1 side on the one end portion side of the shaft portion 2b, and the first deformation portion 2c. The second deformable portion 2d having a large diameter and the third deformable portion 2e for fixing the support member 9 provided at the end opposite to the side where the second deformable portion 2d is provided. . The first shaft member 2 is inserted into and engaged with the second deformation portion 2d through the deformation hole 10a provided in the axial direction of the central portion of the first gear 10 of the interlocking means 5, and then provided in the central portion axial direction of the spacer washer 11. The first deformed portion 2c is inserted into and engaged with the deformed hole 11a, and the first deformed portion 2c is passed through the bearing hole 1e provided in the side plate 1b of the mounting member 1, and the locking ring 12 is connected to the first deformed portion 2c protruding to the opposite side of the side plate 1b. Is passed through the deformation hole 12a provided in the axial direction of the central portion, and the end portion of the protruding first deformation portion 2c is swaged to be rotatable with respect to the side plate 1b while being restricted in movement in the axial direction. It is attached. The supporting member 9 is inserted into and engaged with a deforming mounting hole 9a provided on the surface of the third deforming portion 2e, and the exposed end portion of the protruding third deforming portion 2e is crimped to rotate together with the first shaft member 2. It is attached to do. In the embodiment, the support member 9 is provided with mounting holes 9b, 9b, and the side portions of the opening / closing body C are mounted with mounting screws 13, 13 through the mounting holes 9b, 9b. The opening / closing body C can also be configured to directly attach the first shaft member 2 without using the support member 9. Furthermore, since the first shaft member 2 is not provided with friction torque changing means in the width direction, a space for attaching an FPC (flexible substrate) can be secured.

  The rotation control means 3 includes a friction torque changing means 4, an interlocking means 5 for interlocking the friction torque changing means 4 and the first shaft member 2, and a stopper means 6 for restricting the rotation angle of the first shaft member 2. The friction torque varying means 4 includes a second shaft member 14 provided adjacent to the first shaft member 2 on the mounting member 1 and a cam provided on the second shaft member 14. A means 15, a pressurizing means 7 for pressurizing the cam means 15, and a suction means 8 for the first shaft member 2 are configured.

The interlocking means 5 includes a first gear 10 that is attached to the first shaft member 2 while being restricted in rotation, and a second gear 16 that meshes with the first gear 10 and is rotatably attached to the second shaft member 14. . The interlocking means 5 is not limited to that of the embodiment, and may be configured to transmit driving force from the first gear 10 to the second gear 16 using an intermediate gear, or may be an embodiment using a bevel gear. It is done. The second gear 16 is provided with a rotating cam portion 18 on one side and a recess 16b on the other side. The recess 16b is provided with a circular insertion hole 24a in the axial direction of its central portion. A washer 24 having small holes 24b, 24b,... For holding lubricating oil is fitted in the surface portion, and is interposed between the second gear 16 and the large diameter portion 14b of the second shaft member 14. The engaging recess 14 a provided in the large diameter portion 14 b is engaged with an engaging piece 24 c provided in the washer 24.
The stopper means 6 is composed of a stopper piece 1h provided on the side plate 1b and an engagement convex portion 10b provided on the first gear 10, and restricts the rotation of the first shaft member 2 at a predetermined rotation angle, thereby The opening / closing angle is limited.

  As shown in FIGS. 8 and 11, the second shaft member 14 constituting the friction torque varying means 4 is inserted into a mounting hole 1f provided adjacent to the bearing hole 1e provided in the side plate 1b of the mounting member 1. A large-diameter portion 14b having an engaging recess 14a on the outer periphery, a first deformed shaft portion 14c provided on one side of the large-diameter portion 14b, and a common shaft center on the other side of the large-diameter portion 14b. The small-diameter portion 14d is provided with a circular shaft portion 14e following the large-diameter portion 14b. The circular shaft portion 14e is further followed by a second deformation shaft portion 14f and a third deformation shaft portion 14g. The third deformation shaft portion 14g is provided with a male screw portion 14h. The second shaft member 14 has the large-diameter portion 14b inserted into the mounting hole 1f, and the first deformed shaft portion 14c protruding to the opposite side of the side plate 1b is inserted into the deformed mounting hole 25a provided in the reinforcing plate 25. It is attached to the side plate 1b of the attachment member 1 in a non-rotating manner by projecting its tip side and caulking the projecting portion. The reinforcing plate 25 is provided with mounting holes 25b and 25b in addition to the above-described deformation mounting hole 25a, and fixed to the mounting holes 1g and 1g provided in the side plate 1b with mounting screws 15c and 15c through the mounting holes 25b and 25b. It is the composition which is done. In this fixing method, a caulking pin may be used instead of the mounting screw.

  Next, the cam means 15 that also constitutes the friction torque varying means 4 is the interlocking means 5 that is rotatably provided through the circular shaft portion 14e of the second shaft member 14 in the insertion hole 16a provided in the central portion axial direction. The second cam member 18 is provided on the rotation cam portion 18 provided on one side surface side of the second gear 16 and the deformation insertion hole 19a provided in the axial direction of the central portion of the second shaft member 14 adjacent to the second gear 16. The slide cam member 19 is provided with a fixed cam portion 20 that is provided so as to be able to move in the axial direction. The rotating cam portion 18 includes an outer peripheral recess 18a and an inner peripheral recess 18b that are concentrically opposed to each other in the radial direction, and an outer periphery provided continuously from both ends of each outer peripheral recess 18a and the inner peripheral recess 18b. Side first stepped portions 18c, 18c and inner peripheral first stepped portions 18d, 18d, and one step provided following each outer peripheral first stepped portion 18c, 18c and inner peripheral first stepped portions 18d, 18d. It is formed of an outer peripheral second step 18e and an inner peripheral second step 18f that are raised in the axial direction. The fixed cam portion 20 includes an outer peripheral convex portion 20a and an inner peripheral convex portion 20b concentrically on the side of the slide cam member 19 that faces the rotating cam portion 18 provided on the second gear 16. The rotating cam portion 18 and the fixed cam portion 20 are always in pressure contact with each other by the pressurizing means 7.

  The pressurizing means 7 is provided adjacent to the slide cam member 19 and extends in the axial direction while inserting the deformation insertion holes 22a, 22a... Into the second deformation shaft portion 14f of the second shaft member 14. It is composed of a plurality of disc springs 22, 22... That are provided so as to be movable, and a tightening nut 23 that is screwed to the male screw portion 14 h of the second shaft member 14. The provided fixed cam portion 20 is pressed toward the rotating cam portion 18 provided on the second gear 16.

  The suction means 8 includes an outer peripheral side concave portion 18a and an inner peripheral side concave portion 18b provided on the rotating cam portion 18, an outer peripheral side convex portion 20a and an inner peripheral side convex portion 20b provided on the fixed cam portion 20 side. The suction function is exhibited at the closing position of the opening / closing body C, and the opening / closing body C is automatically urged to rotate in the closing direction. The stopper means 6 includes a stopper piece 1h provided on the side plate 1b of the mounting member 1 and an engaging convex portion 10b provided on the first gear 10, and restricts the rotation of the first shaft member 2 at a predetermined rotation angle. The opening / closing angle of the opening / closing body C is limited.

  Next, the operation of the switchgear according to the present invention will be described. First, the torque fluctuation during the opening / closing operation of the monitor which is the opening / closing body C is shown in FIG. The upper side shows the torque fluctuation at the time of opening, and the lower side shows the torque fluctuation at the time of closing. The opening / closing body C is accommodated via the opening / closing devices B and B ′ in a housing portion D having a substantially rectangular shape in front view provided at the rear portion of the backrest portion a of the front seat which is the body A to be opened / closed. This accommodated state is a closed state, and is 0 degree as shown in FIGS. 17 (a) and 17 (b). In this state, the outer peripheral side convex portion 20a and the inner peripheral side convex portion 20b of the fixed cam portion 20 of the slide cam member 19 constituting the suction means 8 are, as shown in FIG. Since the slide cam member 19 is pressed to the rotating cam portion 18 side by the pressurizing means 7, the opening / closing body C is Due to its own weight, it is urged to rotate counterclockwise in the figure, but it is kept in a closed state stably, and it does not rotate automatically counterclockwise depending on the shaking or vibration of the car. In a closed state.

Next, when the monitor which is the opening / closing body C is viewed and lifted upward by placing a hand on the lower side thereof, the first shaft member 2 rotates via the support member 9 and the opening / closing body C starts to be opened. As shown in FIGS. 18 (e) and 18 (d), the outer peripheral side concave portion 18a, the inner peripheral side concave portion 18b, and the slide cam member 19 are fixed to the second gear 16 side until the first 10 degrees. Although resistance is encountered when the cam part 20 escapes from the outer peripheral side convex part 20a and the inner peripheral side convex part 20b, it begins to open by giving up a little force. Thereafter, as shown in FIG. 17 and FIG. 18 (c), in the opening angle range from 10 degrees to 100 degrees, the outer peripheral side convex part 20a and the inner peripheral side convex part 20b are on the outer peripheral side of the slide cam member 19. Since it moves on the 1st step part 18c, 18c and the inner peripheral side 1st step part 18d, 18d, it opens to a free stop. When the opening / closing body C is further pushed up from the opening angle of 100 degrees, as shown in FIGS. 17 and 18B, the outer peripheral convex portion 20a and the inner peripheral convex portion of the fixed cam portion 20 of the slide cam member 19 are provided. Since the portion 20b moves toward the outer peripheral second step portion 18e and the inner peripheral second step portion 18f of the rotating cam portion 18, an even stronger friction torque is created, and the opening / closing body C that attempts to rotate in the closing direction. A friction torque exceeding the rotational torque is created. Therefore, the opening / closing body C is not opened by free stop and closed by its own weight. The maximum opening angle is 210 degrees, but in actuality, it hits the headrest portion b, and is about 190 degrees. In this state, the opening position of the opening / closing body C is stable, and the opening / closing body C does not rotate due to the friction torque due to the shaking or vibration of the automobile.

  When the opened opening / closing body C is closed, as shown in FIG. 17, the torque fluctuation opposite to the opening occurs, and the opening / closing body C is shown in FIGS. 18 (a) to 18 (f). Thus, it is closed to the original 0 degree position. At this time, the suction operation by the suction means 8 occurs from the closing angle of 10 degrees of the opening / closing body C, and the opening / closing body C is automatically closed to 0 degrees. This state is a state in which the opening / closing body C is accommodated in the accommodating portion D.

  Since the present invention is configured as described above, the harness can be made invisible from the outside, and the width of the switchgear can be further reduced, thereby reducing the width of the switchgear using the switchgear. In addition to being able to achieve compactness, FPC (flexible base) can be attached. Especially as an opening / closing body opening / closing device consisting of an on-vehicle monitor, an opening / closing body made of electronic equipment can be opened and closed to an opening / closing body. It is suitably used as an opening / closing device to be attached.

A Open / closed body (front seat)
a Backrest B, B 'Opening / Closing Device C Opening / Closing Body (Monitor)
D housing portion E mounting plate H harness 1 mounting member 1a mounting plate 1b side plate 1e bearing hole 1f mounting hole 2 first shaft member 2a through hole 2b shaft portion 3 rotation control means 4 friction torque fluctuation means 5 interlocking means 6 stopper means 7 addition Pressure means 8 Suction means 9 Support member 10 First gear 14 Second shaft member 15 Cam means 16 Second gear 18 Rotating cam portion 18a Outer peripheral recess 18b Inner peripheral recess 18c Outer peripheral first step 18d Inner peripheral first Step portion 18e Outer peripheral side second step portion 18f Inner peripheral side second step portion 19 Slide cam member 20 Fixed cam portion 20a Outer peripheral side convex portion 20b Inner peripheral side convex portion 25 Reinforcing plate

Claims (8)

An attachment member attached to the body to be opened and closed;
A first shaft member having a through-hole penetrating through the central axial direction of the opening and closing body attached to the attachment member in a rotatable manner;
The rotation control means for controlling the rotation of the first shaft member,
The rotation control means includes friction torque changing means, interlocking means for interlocking the friction torque changing means and the first shaft member, and stopper means for restricting the rotation angle of the first shaft member,
The friction torque changing means includes a second shaft member provided adjacent to the first shaft member on the mounting member, a cam means provided on the second shaft member, and a pressurization for pressurizing the cam means. An opening / closing device for an opening / closing body, characterized in that the opening / closing member is constituted by means and suction means for the first shaft member.   2. The opening / closing device for an opening / closing body according to claim 1, wherein the attachment member comprises an attachment plate and a side plate bent from the attachment plate.   The opening / closing device for an opening / closing body according to claim 2, wherein the first shaft member is rotatably attached to the side plate at one end side thereof.   The interlocking means comprises a first gear that is rotatably attached to the first shaft member, and a second gear that is rotatably attached to the second shaft member and meshes with the first gear. The opening / closing device for an opening / closing body according to claim 1.   The stopper means is provided on a stopper piece provided on the side plate and a first gear rotatably attached to the first shaft member, and contacts the stopper piece at a predetermined rotation angle of the first shaft member. The opening / closing device for an opening / closing body according to claim 2, wherein the opening / closing device comprises a convex portion.   The cam means is rotatably attached to the second shaft member and is provided on a side surface of a second gear that meshes with a first gear that is rotatably attached to the first shaft member. A pair of outer peripheral side first stepped portions and inner peripheral side first stepped portions, and a pair of outer peripheral side first stepped portions provided respectively following the end portions of the outer peripheral side concave portions and the inner peripheral side concave portions; A rotating cam portion having an outer peripheral side second step portion and an inner peripheral side second step portion provided subsequent to the inner peripheral side first step portion, and attached to the second shaft member so as to be non-rotatable and slidable in the axial direction. The slide cam member having a fixed cam portion composed of an outer peripheral convex portion and an inner peripheral convex portion on the side facing the rotating cam portion as described above, Opening and closing device for opening and closing body.   The friction torque changing means further has suction means, and the suction means is provided on the side surface of the second gear rotatably attached to the second shaft member constituting the cam means. A rotation cam portion having a side recess and an inner periphery recess, and an outer peripheral protrusion and an inner periphery on the side facing the rotation cam portion that is non-rotatably attached to the second shaft member and is slidable in the axial direction. 2. The opening / closing device for an opening / closing body according to claim 1, wherein the opening / closing member comprises a slide cam member having a fixed cam portion formed of a side convex portion.   An opening / closing body using the opening / closing apparatus for an opening / closing body according to any one of claims 1 to 7.

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