JP7085407B2 - Switchgear of switchgear and switchgear - Google Patents

Description

The present invention is particularly suitable for attaching an in-vehicle monitor, which is a kind of switchgear, to the rear part of the backrest of the front seat of an automobile so as to be openable and closable. Regarding the object to be opened and closed, which consists of various devices.

Conventionally, as a support device for supporting an in-vehicle monitor mounted near a seat inside an automobile so as to be swingable or openable, those described in the following Patent Documents 1 to 3 are known. Of these, the mounting structure of the in-vehicle monitor shown in Patent Documents 1 and 2 uses a solid hinge shaft having no insertion hole for inserting a harness, and the one shown in Patent Document 3 is a hinge shaft. An insertion hole for a harness is provided through the axial direction of the hinge shaft, and a friction torque generating means using a friction washer, a wave washer, or the like is provided on the hinge shaft.

However, the ones 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. Further, in the case described in Patent Document 3, since the insertion hole for inserting the harness is provided in the axial direction of the hinge shaft, it is possible to prevent the harness from being exposed to the outside. In this case, a normal hinge is used. It is necessary to use a shaft with a larger diameter than the shaft, and the effective area in the radial direction of the members constituting the friction torque generating means such as the friction washer and the wave washer must be small, and depending on the place where the monitor is mounted. There is a problem that it is difficult to obtain a friction torque that stably stops the monitor at a required angle. Further, as described in the following patent document, in the case where the friction torque generating means is provided on one hinge shaft, the length of the hinge shaft in the axial direction becomes long, so that the width of the entire switchgear becomes long. This has been an obstacle to reducing the width of the object to be opened / closed attached to the switchgear to make it compact. Further, in recent years, an FPC (flexible substrate) has been used instead of a harness, and a switchgear compatible with this FPC is also required.

Japanese Unexamined Patent Publication No. 2014-177235 Japanese Unexamined Patent Publication No. 2007-308124 Japanese Unexamined Patent Publication No. 2000-330475

Therefore, an object of the present invention is to provide a rotation control means in a place different from the first shaft member even if a first shaft member that supports the opening / closing body and has an insertion hole through which the harness is passed is used in the axial direction. By providing the first shaft member and the rotation control means in conjunction with each other, 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 more compact. Further, the present invention is intended to provide an opening / closing device for an opening / closing body such as an in-vehicle monitor, which can also be used for FPC.

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

In order to achieve the above-mentioned object, the opening / closing device of the opening / closing body according to claim 1 of the present invention has a mounting member attached to the side to be opened / closed and a mounting member rotatably attached to the mounting member and the opening / closing body is attached . However, it is composed of a first shaft member having a through hole penetrating the central portion in the axial direction and a rotation control means for controlling the rotation of the first shaft member, and this rotation control means is referred to as a friction torque fluctuation means. The friction torque fluctuating means, the interlocking means for interlocking the first shaft member with each other , and the stopper means for regulating the rotation angle of the first shaft member are configured, and the friction torque fluctuating means is attached to the mounting member. A second shaft member provided adjacent to the first shaft member, a cam means provided on the second shaft member, a pressurizing means for pressurizing the cam means, and a suction means for the first shaft member. The cam means is provided on the outer peripheral side of the second gear that meshes with the first gear that is rotatably attached to the second shaft member and rotatably attached to the first shaft member. A pair of outer peripheral side first step portions and inner peripheral side first step portions, which are provided following the concave portions and the inner peripheral side concave portions, and the outer peripheral side concave portions and the inner peripheral side concave portions, respectively, and the outer peripheral side thereof. A rotary cam portion having a second step portion on the outer peripheral side and a second step portion on the inner peripheral side provided following the first step portion and the first step portion on the inner peripheral side, and a non-rotating and axial direction to the second shaft member. It is characterized in that it is composed of a slide cam member having a fixed cam portion including an outer peripheral side convex portion and an inner peripheral side convex portion on a side facing the rotary cam portion which is slidably attached to the rotary cam portion .

The switchgear opening / closing device 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 provided by bending from the mounting plate.

The switchgear opening / closing device according to claim 3 of the present invention is characterized in that the first shaft member is rotatably attached to the side plate on one end side thereof.

The opening / closing device for an opening / closing body according to claim 4 of the present invention is a first gear in which the interlocking means is rotatably attached to the first shaft member, and the first gear is rotatably attached to the second shaft member. It is characterized by being composed of a second gear that meshes with one gear.

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

The opening / closing device for an opening / closing body according to claim 6 of the present invention is a second gear in which the suction means of the friction torque fluctuating means is rotatably attached to the second shaft member constituting the cam means. On the side facing the rotary cam portion having the outer peripheral side concave portion and the inner peripheral side concave portion provided on the side surface and the rotary cam portion attached to the second shaft member in a non-rotating and axially slidable manner. It is characterized by being composed of a slide cam member having a fixed cam portion composed of a convex portion on the outer peripheral side and a convex portion on the inner peripheral side.

According to the first aspect of the present invention, by passing a harness or the like through an insertion hole provided in the first shaft member, the harness is not exposed to the outside, so that the design can be improved, and the rotation control means is used to make the first. It is possible to control the rotation of the shaft member and control the rotation torque of the opening / closing body attached to the first shaft member so as to rotate together. Furthermore, since the friction torque fluctuation means is provided separately from the first shaft member, the width of the switchgear can be reduced, so that the width of the switchgear such as a monitor using this switchgear can be reduced, and the size of the switchgear can be reduced. It is something that can be done. Moreover, since the friction torque fluctuating 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 to the margin.

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

According to the third aspect of the present invention, since the configuration in which the first shaft member is rotatably attached to the side plate of the attachment member is simple, the manufacturing cost can be reduced.

According to the invention of claim 4, since the configuration of the interlocking means is simple, the manufacturing cost can also be reduced.

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

According to the sixth aspect of the invention, the suction means is provided on the side surface of the second gear constituting the cam means , and the rotary cam portion having the outer peripheral side concave portion and the inner peripheral side concave portion, and the second shaft member. By being composed of a slide cam member having a fixed cam portion composed of a convex portion on the outer peripheral side and a convex portion on the inner peripheral side on the side facing the rotary cam portion which is non-rotating and slidable in the axial direction. The suction function can be exerted at a predetermined rotation angle of the first shaft member from the second gear via the first gear, and the operability of the opening / closing body can be improved.

A state in which the switchgear is attached to the opened / closed body by using the switchgear according to the present invention is shown, (a) is a front view thereof, and (b) is a left side view thereof. FIG. 3 is an enlarged side view of the switchgear of FIG. 1 as viewed from the direction of AA in FIG. 2 with the switchgear closed. FIG. 3 is an enlarged front view of the switchgear shown in FIG. 1 as viewed from the front side. FIG. 3 is an enlarged plan view of the switchgear shown in FIG. 1 as viewed from the plane side. It is a perspective view of the switchgear unit which concerns on this invention. It is a perspective view which looked at the switchgear alone which concerns on this invention from the angle different from FIG. It is a top sectional view of the switchgear unit which concerns on this invention. It is an exploded perspective view of the switchgear which concerns on this invention. It is a perspective view of the mounting member of the switchgear which concerns on this invention. The first shaft member of the switchgear according to the present invention is shown, (a) is a perspective view, (b) is a vertical sectional view, (c) is a side view seen from the support member side, and (d) is from the mounting member side. It is a side view as seen. The second shaft member of the switchgear according to the present invention is shown, (a) is a perspective view, (b) is a front view, and (c) is a right side view. The first gear of the switchgear according to the present invention is shown, (a) is a perspective view, and (b) is a plan view. A second gear of the switchgear according to the present invention is shown, (a) is a perspective view seen from one side thereof, (b) is a perspective view seen from the other side, and (c) is a vertical sectional view. The slide cam member of the switchgear according to the present invention is shown, (a) is a perspective view seen from one side thereof, and (b) is a perspective view seen from the other side. The operation of the switchgear according to the present invention will be described. FIG. .. The operation of the switchgear according to the present invention will be described. FIG. The operation of the switchgear according to the present invention is described, (a) explains the opening / closing angle of the switchgear and the state of torque fluctuation, and (b) is a simulated illustration of this. It is explanatory drawing which shows the operation of the cam means of the switchgear which concerns on this invention in a simulated manner.

Hereinafter, 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, which is attached to the back side of the backrest of the front seat of the automobile, will be described as an example, but the present invention is not limited to this. It can also be widely used as a display device such as a general personal computer, other display devices, or a wide range of lid opening / closing devices. Therefore, in the present specification, the scope of claims, etc., the monitor part is read as an opening / closing body, and the backrest part is referred to as 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, and the cam means described in the present specification and the claims. The terms such as suction means and stopper means are not limited to the forms and structures given in the examples. It embraces a broader concept than those described below.

According to the drawing, in FIG. 1, on the back side of the backrest portion a of the front seat (opening / closing body A) of an automobile, an opening / closing body C composed of a monitor via a pair of opening / closing devices B and B'is the backrest portion. It is attached so as to be openable and closable from the state of being housed in the housing portion D provided in a to the open position in the used state. These pair of switchgear B, B'have basically the same configuration, but one of them has a different configuration, for example, a switchgear having only one axis without using two axes, or a shaft member. It is also conceivable that the harness is not provided with an insertion hole that penetrates in the axial direction. However, in the following description, the switchgear B on the left side will be described as having the same configuration on the left and right sides, and the description of the switchgear B'on the right side will be omitted.

As shown in FIG. 1 (b), 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 opened / closed body A composed of the front seats and is provided in the accommodating portion. It is housed in D and does not protrude to the rear part of the backrest portion a, but is not limited to this.

As shown in FIGS. 2 to 14, the opening / closing device B according to the present invention is rotatably attached to and opened / closed the mounting member 1 attached to the mounting plate portion E on the side to be opened / closed A and the mounting member 1. It is composed of a first shaft member 2 having a through hole 2a penetrating the central axial direction of the body C to which the body C is attached, and a rotation control means 3 for controlling the rotation of the first shaft member 2, and the rotation control thereof. The means 3 are the friction torque fluctuating means 4, the interlocking means 5 for transmitting the rotational driving force of the first shaft member 2 to the friction torque fluctuating means 4, and the stopper means 6 for regulating the rotation angle of the first shaft member 2. A second shaft member 14 provided with the friction torque fluctuation means 4 adjacent to the first shaft member 2 with respect to the mounting member 1, and a cam means provided on the second shaft member 14. It is composed of 15, a pressurizing means 7 for pressurizing the cam means 15, and a suction means 8.

The mounting 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 composed of a mounting plate 1a and a side plate 1b bent from the mounting plate 1a by press working. The mounting plate 1a is configured to be mounted on the side to be opened / closed A by mounting screws 1d and 1d via mounting holes 1c and 1c provided therein. The side plate 1b has a bearing hole 1e for rotatably attaching the first shaft member 2 to 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. Is provided with a mounting hole of 1 g for mounting the bearing. A stopper piece 1h is provided on the top of the side plate 1b in a bent state adjacent to the bearing hole 1e. The structure of the mounting member 1 is not limited to this, and the mounting member 1 may be manufactured at low cost because the structure of the embodiment is simple, and it may have both side plates arranged side by side at predetermined intervals. Desirable in terms of strength. Further, the material is not limited to a metal such as SUS, and may be a synthetic resin having mechanical strength such as ABS.

The first shaft member 2 (corresponding to a hinge shaft of a known technique) has a configuration as shown in FIGS. 8 and 10, and is drawn out from the opening / closing body C side through the central axial direction thereof, which will be described later. It is also a metal cylinder like SUS provided with a through hole 2a through which a harness H or the like is passed. The first shaft member 2 is provided following the shaft portion 2b in the central portion, the first deformed portion 2c provided on the mounting member 1 side on the one end side of the shaft portion 2b, and the first deformed portion 2c. It has a second deformed portion 2d having a large diameter and a third deformed portion 2e for fixing the support member 9 provided at the end on the side opposite to the side where the second deformed portion 2d is provided. .. The first shaft member 2 is inserted into and engaged with the second deformable portion 2d into the deformable hole 10a provided in the central axial direction of the first gear 10 of the interlocking means 5, and then is provided in the central axial direction of the spacer washer 11. The locking ring 12 is inserted into and engaged with the deformed hole 11a, 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 projected 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 by crimping the end portion of the protruding first deformation portion 2c, it becomes rotatable with respect to the side plate 1b in a state where the movement is restricted in the axial direction. It is attached. The support member 9 is inserted into and engaged with the deformed mounting hole 9a provided on the surface of the third deformed portion 2e, and the exposed end portion of the protruding third deformed portion 2e is crimped to rotate together with the first shaft member 2. It is installed so that it can be used. In the embodiment, the support member 9 is provided with mounting holes 9b and 9b, and the side portions of the opening / closing body C are mounted by the mounting screws 13 and 13 via the mounting holes 9b and 9b. The opening / closing body C may be configured to directly attach the first shaft member 2 without using the support member 9. Further, since the first shaft member 2 is not provided with the friction torque fluctuation means in the width direction thereof, it is possible to secure a space for mounting the FPC (flexible substrate).

The rotation control means 3 includes a friction torque fluctuation means 4, an interlocking means 5 that interlocks the friction torque fluctuation means 4 and the first shaft member 2 with each other, and a stopper means 6 that regulates the rotation angle of the first shaft member 2. The friction torque fluctuation means 4 is composed of 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. It is composed of means 15, a pressurizing means 7 for pressurizing the cam means 15, and a suction means 8 of the first shaft member 2.

The interlocking means 5 includes a first gear 10 that is constrained to rotate and attached to the first shaft member 2, 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 an embodiment in which an intermediate gear is used to transmit a driving force from the first gear 10 to the second gear 16 or a bevel gear is used can be considered. Will be. The second gear 16 is provided with a rotary cam portion 18 on one side and a recess 16b on the other side, and the recess 16b is provided with a circular insertion hole 24a in the axial direction of the central portion thereof. A washer 24 provided with 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 14a provided in the large diameter portion 14b is engaged with the engaging piece 24c provided in the washer 24.
The stopper means 6 is composed of a stopper piece 1h provided on the side plate 1b and an engaging convex portion 10b provided on the first gear 10, and the first shaft member 2 is restricted from rotating at a predetermined rotation angle to control the rotation of the opening / closing body C. It limits the opening / closing angle.

The second shaft member 14 constituting the friction torque fluctuation means 4 is inserted into the mounting hole 1f provided adjacent to the bearing hole 1e provided in the side plate 1b of the mounting member 1, as shown in FIGS. 8 and 11. A large-diameter portion 14b having an engaging recess 14a on the outer periphery thereof, a first deformable shaft portion 14c provided on one side of the large-diameter portion 14b, and a common axis on the other side of the large-diameter portion 14b. It is composed of a small diameter portion 14d provided, and the small diameter portion 14d is provided with a circular shaft portion 14e following the large diameter portion 14b, and the second deformed shaft portion 14f and the third deformed shaft portion 14g are further provided following the circular shaft portion 14e. Is provided, and a male screw portion 14h is provided on the third deformation shaft portion 14g. In the second shaft member 14, the large diameter portion 14b is 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. The tip side is projected, and the protruding portion is crimped so as to be non-rotatably attached to the side plate 1b of the mounting member 1. The reinforcing plate 25 is provided with mounting holes 25b and 25b in addition to the above-mentioned deformed mounting holes 25a, and is fixed to the mounting holes 1g and 1g provided in the side plate 1b by the mounting screws 15c and 15c through the mounting holes 25b and 25b. It is a configuration to be done. In this fixing method, a crimping pin may be used instead of the mounting screw.

Next, the cam means 15 that also constitutes the friction torque fluctuation means 4 is rotatably provided through the circular shaft portion 14e of the second shaft member 14 through the insertion hole 16a provided in the central axial direction thereof. The second shaft member 14 is provided in the rotary cam portion 18 provided on one side surface side of the second gear 16 and the deformed insertion hole 19a provided in the second shaft member 14 adjacent to the second gear 16 in the axial direction of the central portion thereof. It is composed of a slide cam member 19 having a fixed cam portion 20 provided so as to be movable in the axial direction, although rotation is restricted through the second deformation shaft portion 14f of the above. The rotary cam portion 18 is provided concentrically with the outer peripheral side recesses 18a and the inner peripheral side recesses 18b, and the outer peripheral side recesses 18a and the outer peripheral side recesses 18b provided continuously from both ends. One step provided following the first step portions 18c and 18c on the side, the first step portions 18d and 18d on the inner peripheral side, the first step portions 18c and 18c on the outer peripheral side, and the first step portions 18d and 18d on the inner peripheral side. It is formed of an outer peripheral side second step portion 18e raised in the axial direction and an inner peripheral side second step portion 18f. The fixed cam portion 20 is concentrically composed of an outer peripheral side convex portion 20a and an inner peripheral side convex portion 20b on the side facing the rotary cam portion 18 provided on the second gear 16 of the slide cam member 19. The rotary cam portion 18 and the fixed cam portion 20 are always in a pressure contacting state with each other by the pressurizing means 7.

The pressurizing means 7 is provided adjacent to the slide cam member 19, and the deformed insertion holes 22a, 22a, ... Are inserted and engaged with the second deformable shaft portion 14f of the second shaft member 14 in the axial direction. It is composed of a plurality of countersunk springs 22, 22 ... The fixed cam portion 20 provided is pressed toward the rotary cam portion 18 provided on the second gear 16.

The suction means 8 is composed of an outer peripheral side concave portion 18a and an inner peripheral side concave portion 18b provided on the rotary cam portion 18, an outer peripheral side convex portion 20a provided on the fixed cam portion 20 side, and an inner peripheral side convex portion 20b. The suction function is exerted at the closed position of the opening / closing body C, and the opening / closing body C is automatically rotationally urged in the closing direction. The stopper means 6 is composed of 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 the first shaft member 2 is restricted from rotating at a predetermined rotation angle. It limits the opening / closing angle of the opening / closing body C.

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. 17 (a). 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 housed 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 to be opened / closed A, via the opening / closing devices B and B'. This housed state is a closed state, and is 0 degrees 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 the second gear 16 as shown in FIG. 18 (f). Since the slide cam member 19 is pressed toward the rotary cam portion 18 by the pressurizing means 7, the opening / closing body C is depressed into the outer peripheral side recess 18a and the inner peripheral side recess 18b of the rotary cam portion 18 provided in the above. Although it is urged to rotate counterclockwise in the figure due to its own weight, it keeps the closed state stable, and it is stable without automatically rotating counterclockwise depending on the shaking and vibration of the car. It is kept closed.

Next, when the monitor which is the opening / closing body C is viewed by placing a hand on the lower side thereof and lifting it upward, 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 recess 18a, the inner peripheral side recess 18b, and the slide cam member 19 are fixed to the rotary cam portion 18 on the second gear 16 side up to the first 10 degrees. A resistance is encountered when escaping from the outer peripheral side convex portion 20a and the inner peripheral side convex portion 20b of the cam portion 20, but the cam portion 20 begins to be opened by a slight force. After that, as also shown in FIGS. 17 and 18 (c), in the opening angle range from 10 degrees to 100 degrees, the outer peripheral side convex portion 20a and the inner peripheral side convex portion 20b are on the outer peripheral side of the slide cam member 19. Since it moves on the first stage portions 18c and 18c and the inner peripheral side first stage portions 18d and 18d, it is opened to a free stop. When the opening / closing body C is further pushed up from this opening angle of 100 degrees, as shown in FIGS. 17 and 18 (b), the outer peripheral side convex portion 20a and the inner peripheral side convex portion of the fixed cam portion 20 of the slide cam member 19 are convex. Since the portion 20b moves to the outer peripheral side second stage portion 18e and the inner peripheral side second stage portion 18f side of the rotary cam portion 18, a stronger friction torque is created and the opening / closing body C that tries to rotate in the closing direction. Friction torque that exceeds the rotational torque of is created. Therefore, the opening / closing body C is opened by a free stop and is not closed by its own weight. This maximum opening angle is 210 degrees, but since it actually hits the headrest portion b, it is around 190 degrees. In this state, the opening position of the opening / closing body C is stable and does not rotate due to the shaking or vibration of the automobile due to the friction torque.

When closing the opened opening / closing body C, a torque fluctuation opposite to that at the time of opening occurs as shown in the torque fluctuation of FIG. 17, and the opening / closing body C is shown in FIGS. 18 (a) to 18 (f). As such, 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 housed in the housing portion D.

Since the present invention is configured as described above, it can be made invisible from the outside when a harness is used, and the width of the switchgear can be reduced, so that the width of the switchgear using the switchgear can be reduced. In addition to being compact, it is also possible to attach an FPC (flexible board). In particular, as a switchgear opening / closing device consisting of an in-vehicle monitor, it is possible to open / close a switchgear made of electronic devices to the opened / closed body. It is suitably used as a switchgear to be attached.

A Opening and closing body (front seat)
a Backrest B, B'Switchgear C Switchgear (monitor)
D Accommodating part 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 part 3 Rotation control means 4 Friction torque fluctuation means 5 Interlocking means 6 Stopper means 7 Pressure means 8 Suction means 9 Support member 10 1st gear 14 2nd shaft member 15 Cam means 16 2nd gear 18 Rotating cam part 18a Outer peripheral side recess 18b Inner peripheral side concave 18c Outer peripheral side 1st step 18d Inner peripheral side 1st Step 18e Outer peripheral side 2nd step 18f Inner peripheral side 2nd step 19 Slide cam member 20 Fixed cam part 20a Outer peripheral convex 20b Inner peripheral convex 25 Reinforcing plate

Claims (6)

Mounting members that can be attached to the side to be opened and closed,
A first shaft member that is rotatably attached to this mounting member and has a through hole that penetrates the central portion of the place where the opening / closing body is mounted in the axial direction.
It is composed of a rotation control means for controlling the rotation of the first shaft member.
The rotation control means is composed of a friction torque fluctuation means, an interlocking means for interlocking the friction torque fluctuation means and the first shaft member with each other, and a stopper means for regulating the rotation angle of the first shaft member.
A second shaft member provided on the mounting member adjacent to the first shaft member, a cam means provided on the second shaft member, and a pressurizing force for pressurizing the cam means. It is composed of means and suction means of the first shaft member .
The cam means is provided on the outer peripheral side concave portion and the inner peripheral side where the cam means is rotatably attached to the second shaft member and meshes with the first gear rotatably attached to the first shaft member. A pair of outer peripheral side first step portions and inner peripheral side first step portions, and the outer peripheral side first step portion, which are provided following each end portion of the concave portion, the outer peripheral side concave portion and the inner peripheral side concave portion, respectively. A rotary cam portion having an outer peripheral side second step portion and an inner peripheral side second step portion provided following the inner peripheral side first step portion, and a non-rotating and axially slidable attachment to the second shaft member. An opening / closing device for an opening / closing body , which comprises a slide cam member having a fixed cam portion composed of an outer peripheral side convex portion and an inner peripheral side convex portion on a side facing the rotary cam portion. .. The switchgear opening / closing device according to claim 1, wherein the mounting member is composed of a mounting plate and a side plate provided by bending from the mounting plate. The switchgear opening / closing device according to claim 2, wherein the first shaft member is rotatably attached to the side plate on one end side thereof. The interlocking means is characterized by comprising a first gear rotatably attached to the first shaft member and a second gear rotatably attached to the second shaft member and meshed with the first gear. The opening / closing device for the 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 abuts on the stopper piece at a predetermined rotation angle of the first shaft member. The switchgear opening / closing device according to claim 2, wherein the switchgear is composed of a convex portion. The outer peripheral side concave portion and the inner peripheral side concave portion where the suction means of the friction torque fluctuating means is provided on the side surface of the second gear rotatably attached to the second shaft member constituting the cam means. A fixed cam portion consisting of a rotary cam portion having an outer peripheral side convex portion and an inner peripheral side convex portion on the side facing the rotary cam portion where it is non-rotating and slidably attached to the second shaft member. The opening / closing device for an opening / closing body according to claim 1, further comprising a slide cam member having the above.

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