Switchgear and electronic apparatus with the same

Abstract

To provide a switchgear capable of enhancing drop impact resistance effect on a rotary member, and an electronic apparatus with the same.SOLUTION: A switchgear 1 comprises: a cylindrical case member 10 which has one end made open and the other end closed; a rotary member 20 which is connected to the case member 10 through a rotary shaft member 30, and rotates in a closing direction and an opening direction; an elastic member 40 which is housed in the case member 10, and presses the rotary member 20 in the opening direction with elastic force when the rotary member 20 rotates in the closing direction; and a damper member 60 which is housed in the case member 10 side by side with the elastic member 40 in a right-left direction, and comes into contact with the rotary member 20 rotating in the closing direction to attenuate the rotation of the rotary member 20. The damper member 60 is arranged farther away from the rotary shaft member 30 than the elastic member 40 in the right-left direction.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to an opening and closing device and an electronic device including the same. [Background technology]

[0002] Electronic devices such as multifunction peripherals use hinges that connect a main body and an original cover. Some of these hinges use a damper member that dampens the rotation of the cover in the closing direction to reduce the impact of a fall when the cover is closed (see, for example, Patent Document 1). The hinge disclosed in Patent Document 1 has a configuration in which a fluid damper is arranged so as to be surrounded by a compression coil spring that rotates a support member fixed to the original cover in the opening direction. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2023-077954 Summary of the Invention [Problem to be solved by the invention]

[0004] In the hinge device disclosed in Patent Document 1, a compression coil spring and a fluid damper are arranged coaxially, and a slider pressed down by a support member presses down the compression coil spring and the fluid damper. With this configuration, the buffering effect of the fluid damper cannot be adjusted unless the spring multiplier of the compression coil spring is taken into consideration, which poses a problem in that it is not possible to improve the drop impact resistance of the document cover to which the support member is fixed.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an opening and closing device that can enhance the drop impact resistance of a rotating member, and an electronic device equipped with the same. [Means for solving the problem]

[0006] In order to achieve the above object, the opening and closing device of the present invention comprises: a cylindrical case member having one end open and the other end closed; a rotating member connected to the one end side of the case member via a rotating shaft member and rotating around the rotating shaft member in a closing direction to close the opening and in an opening direction to open the opening; an elastic member that is housed in the case member and that presses the rotary member in an opening direction with an elastic force when the rotary member rotates in the closing direction; a damper member that is housed in the cylindrical case member alongside the elastic member along a direction perpendicular to the axial direction of the cylindrical case member, and that comes into contact with the rotating member rotating in the closing direction to damp the rotation of the rotating member; Equipped with The damper member is In the orthogonal direction, the elastic member is disposed farther from the rotating shaft member than the elastic member. [Effects of the Invention]

[0007] The present invention can improve the drop impact resistance of the rotating member. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of an electronic device provided with an opening and closing device. [Figure 2] FIG. 2 is a perspective view of the hinge in an open state. [Figure 3] FIG. 3 is a perspective view of the hinge in the closed state. [Figure 4] 4 is a cross-sectional view taken along the line IV-IV in FIG. [Figure 5] FIG. 5 is a cross-sectional view taken along the line VV of FIG. [Figure 6] FIG. 6 is a perspective view of the slide member. DETAILED DESCRIPTION OF THE INVENTION

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an opening / closing device and an electronic device including the same according to embodiments of the present invention will be described with reference to the drawings.

[0010] FIG. 1 is a perspective view of an electronic device 100 provided with an opening / closing device 1. The electronic device 100 includes a main body 101 and a lid 102. The opening / closing device 1 connects the lid 102 to the main body 101 in an openable and closable manner. Examples of the electronic device 100 include office automation equipment such as a scanner, fax machine, copier, or multifunction peripheral, as well as a rice cooker. The opening / closing device 1 of this embodiment may be any device that can open and close two members, and may be applied not only to electronic devices but also to automobiles, toilet seats, furniture, and the like.

[0011] Fig. 2 is a perspective view of the opening and closing device 1 in an open state. Fig. 3 is a perspective view of the opening and closing device 1 in a closed state. Fig. 4 is a cross-sectional view taken along the line IV-IV in Fig. 2. Fig. 5 is a cross-sectional view taken along the line VV in Fig. 3. For convenience of illustration, hatching of the damper member 60 has been omitted in the cross-sectional views of Figs. 4 and 5.

[0012] In the opening and closing device 1 of this embodiment, the rotating member 20 is provided to the case member 10 via the rotating shaft member 30, and the rotating member 20 rotates relative to the case member 10 around the rotating shaft member 30 as a fulcrum. In this embodiment, the operation of the rotating member 20 rotating relative to the case member 10 around the rotating shaft member 30 as a fulcrum is referred to as the opening and closing operation. Furthermore, the direction in which the end of the rotating member 20 opposite the rotation center moves away from the case member 10 in the rotation direction of the rotating member 20 is referred to as the opening direction, and the direction in which it moves closer to the case member 10 is referred to as the closing direction. The open state in FIG. 2 refers to a state in which the rotating member 20 has rotated fully in the opening direction. Furthermore, the closed state in FIG. 3 refers to a state in which the rotating member 20 has rotated fully to the closed state.

[0013] In the opening and closing device 1, the case member 10 is attached to a main body 101 (see FIG. 1 ) of the electronic device 100, and the rotating member 20 is attached to a lid 102 of the electronic device 100. This allows the lid 102 of the electronic device 100 to rotate relative to the main body 101.

[0014] In this embodiment, for the sake of convenience, the case member 10 and the rotating member 20 are arranged in the vertical direction, with the case member 10 on the bottom and the rotating member 20 on the top. Directions that are perpendicular to each other and perpendicular to the vertical direction are the front-to-rear direction and the left-to-right direction, respectively. When the rotating member 20 rotates in the closing direction, the rotating member 20 falls forward in the front-to-rear direction. Note that these directions do not limit the usage state of the opening and closing device 1.

[0015] (Configuration of the switching device 1) The opening and closing device 1 includes a case member 10, a rotary member 20, a rotary shaft member 30, an elastic member 40, a slide member 50, and a damper member 60.

[0016] The case member 10 is a cylindrical member that extends in the vertical direction and has an open upper end and a closed lower end. The case member 10 accommodates an elastic member 40, a slide member 50, and a damper member 60, which will be described later. The case member 10 has a tilt prevention portion 10A that is provided on the inner circumferential surface on the front side of the open upper end.

[0017] The tilt prevention portion 10A has a convex shape that protrudes rearward from the inner circumferential surface of the case member 10 and has a flat surface 10B that follows the vertical direction. A main body portion 61 of the damper member 60, which will be described later, is disposed between the tilt prevention portion 10A and the bottom surface of the case member 10 and is supported from the vertical direction. In addition, a portion of a rod portion 62 of the damper member 60, which will be described later, slides along the flat surface 10B and moves up and down, preventing tilting forward.

[0018] The rotating shaft member 30 is provided at the open upper end of the case member 10, on the rear side in the front-to-rear direction. The rotating shaft member 30 has a cylindrical shape extending in the left-right direction. The rotating shaft member 30 rotatably connects the rotating member 20 to the case member 10. Note that the rotating shaft member 30 is not limited to a cylindrical shape as long as it can rotatably connect the rotating member 20 to the case member 10.

[0019] The rotating member 20 is rotatably connected to the case member 10 via the rotating shaft member 30. The opening direction is the direction in which the rotating member 20 opens the opening at the upper end of the case member 10, and the closing direction is the direction in which the rotating member 20 closes the opening of the case member 10. The rotating member 20 has a first cam portion 21 and a second cam portion 22. In the closed state shown in FIGS. 3 and 5 , the first cam portion 21 and the second cam portion 22 are aligned in the front-to-rear direction, with the first cam portion 21 positioned closer to the rotating shaft member 30. When the rotating member 20 of the opening-closing device 1 in the open state rotates in the closing direction, the first cam portion 21 pushes down a slide member 50 (described below), and the second cam portion 22 pushes down a rod portion 62 of a damper member 60 (described below).

[0020] The elastic member 40 is, for example, a coil spring, and is housed in the case member 10 in a position in which it can expand and contract in the vertical direction. The elastic member 40 is arranged alongside the damper member 60 in the front-to-rear direction, and is arranged rearward of the damper member 60. When the rotating member 20 rotates in the closing direction, the elastic member 40 is compressed by the first cam portion 21, and the elastic force presses the rotating member 20 in the opening direction.

[0021] 6 is a perspective view of the slide member 50. The slide member 50 is a cylindrical member with one open end and the other closed end. Hereinafter, the open end will be referred to as the opening 51. The slide member 50 is housed in the case member 10 so as to be movable up and down, with the opening 51 facing downward so as to cover the upper end of the elastic member 40. In addition, the upper surface of the slide member 50 is in contact with the first cam portion 21 of the rotation member 20.

[0022] When the rotating member 20 rotates in the closing direction, the sliding member 50 is pushed down by the first cam portion 21. Furthermore, when the sliding member 50 moves downward, it is pressed upward by the elastic force of the elastic member 40. In other words, when the rotating member 20 rotates in the closing direction, it is pressed in the opening direction by the elastic force of the elastic member 40 via the sliding member 50.

[0023] The slide member 50 has a sliding surface 52 on its front side that slides against the damper member 60. The damper member 60, which will be described later, is arranged alongside the elastic member 40 and the slide member 50 in the front-rear direction. The slide surface 52 is long in the up-down direction and has an R-shape with its left-right central portion convex toward the rear. The outer peripheral surface of the damper member 60 arranged on the front side is fitted into the slide surface 52 of the slide member 50. In other words, the slide member 50 moves in the up-down direction while the slide surface 52 slides on the outer peripheral surface of the damper member 60. In this way, by moving the slide member 50 in the up-down direction along the outer peripheral surface of the damper member 60, the slide member 50 and the damper member 60 can be arranged in close contact with each other, which prevents the case member 10 from becoming large in the front-rear direction.

[0024] The damper member 60 is housed in the case member 10 and is disposed forward of the elastic member 40 and the slide member 50 in the front-rear direction. In other words, the damper member 60 is disposed farther from the rotating shaft member 30 in the front-rear direction than the elastic member 40. The damper member 60 is supported by being sandwiched between the sliding surface 52 of the slide member 50 and the inner circumferential surface of the case member 10. The damper member 60 is, for example, an oil damper and includes a main body 61 and a rod 62. The main body 61 is cylindrical. The rod 62 includes a round rod-shaped shaft 62A and a cylindrical cap 62B with a diameter larger than that of the shaft 62A. The rod 62 is disposed such that the shaft 62A protrudes from the main body 61, and the cap 62B is attached to the end of the protruding side. In the damper member 60, the rod 62 extends and contracts in the up-and-down direction relative to the main body 61. The damper member 60 is configured to exert a buffering effect when the rod portion 62 is pressed into the main body portion 61.

[0025] 4, the damper member 60 is in the open state, with the rod portion 62 extended relative to the main body portion 61. In this state, when the rotating member 20 rotates in the closing direction, the second cam portion 22 of the rotating member 20 comes into contact with the rod portion 62 of the damper member 60, and the rod portion 62 is pushed down. This allows the damper member 60 to exert a cushioning effect, and can mitigate the impact of a fall when the rotating member 20 rotates in the closing direction.

[0026] The first cam portion 21, which presses down the slide member 50, and the second cam portion 22, which presses down the rod portion 62 of the damper member 60, rotate about the rotating shaft member 30. The distance from the rotating shaft member 30 to the second cam portion 22 is longer than the distance from the rotating shaft member 30 to the first cam portion 21. Therefore, when the rotating member 20 rotates in the closing direction, the amount by which the rod portion 62 is pressed down by the second cam portion 22 is greater than the amount by which the slide member 50 is pressed down by the first cam portion 21 (i.e., the amount by which the elastic member 40 is pressed down). In other words, in this embodiment, the amount by which the damper member 60 is pressed down is greater than when the elastic member 40 and the damper member 60 are arranged coaxially, and therefore the drop impact resistance effect of the rotating member 20 can be further improved.

[0027] Furthermore, a part of the rod portion 62 (specifically, the cap 62B) of the damper member 60 slides on the flat surface 10B of the tilt prevention portion 10A, and moves up and down. The rod portion 62 of the damper member 60 is prevented from tilting forward by contacting the flat surface 10B of the rod portion 62 with the flat surface 10B.

[0028] (About the effects) As described above, in this embodiment, by arranging the damper member 60 alongside the elastic member 40 in the front-to-rear direction inside the case member 10, the amount of depression of the damper member 60 can be increased compared to when the elastic member 40 and the damper member 60 are arranged coaxially. As a result, the opening and closing device 1 of this embodiment can further improve the drop impact resistance effect of the rotating member 20.

[0029] Furthermore, by moving the slide member 50 in the vertical direction along the outer circumferential surface of the damper member 60, the slide member 50 and the damper member 60 can be arranged in close contact with each other, preventing the case member 10 from becoming larger in the front-to-rear direction. Furthermore, by contacting the flat surface 10B of the tilt prevention portion 10A of the case member 10, the rod portion 62 of the damper member 60 is prevented from tilting forward.

[0030] (Variation) In the above embodiment, the opening and closing device 1 is configured such that one elastic member 40 is housed in the case member 10. However, two elastic members 40 may be housed in the case member 10. Specifically, the two elastic members 40 and the damper member 60 may be arranged side by side in the front-to-rear direction within the case member 10. Even in this case, the damper member 60 is arranged at a position farther from the rotation center of the rotating member 20, i.e., the rotating shaft member 30, than the two elastic members 40. In this case, one slide member may be configured to press down the two elastic members 40, or independent slide members may be configured to press down the two elastic members 40, respectively. When independent slide members are used, it is preferable that the rotating member 20 be provided with a cam portion that presses down each slide member.

[0031] Furthermore, although the rod portion 62 of the damper member 60 has the cap 62B sliding on the flat surface 10B of the tilt prevention portion 10A, the rod portion 62 may also have a configuration in which the shaft 62A slides on the flat surface 10B of the tilt prevention portion 10A. The shaft 62A and the cap 62B of the rod portion 62 may be a single member or may be separate members. Furthermore, the rod portion 62 does not necessarily have to have the cap 62B. [Explanation of symbols]

[0032] 1: Switchgear 10: Case material 10A: Tilt prevention part 10B: Plane 20: Rotating member 21: First cam part 22: Second cam part 30: Rotating shaft member 40: Elastic member 50: Slide member 51: Opening 52: Sliding surface 60: Damper material 61: Main body 62: Rod part 62A: Shaft 62B: Cap 100:Electronic equipment 101: Main body 102: Lid

Claims

1. a cylindrical case member having one end open and the other end closed; a rotating member connected to the one end side of the case member via a rotating shaft member and rotating around the rotating shaft member in a closing direction to close the opening and in an opening direction to open the opening; an elastic member that is housed in the case member and that presses the rotary member in an opening direction with an elastic force when the rotary member rotates in the closing direction; a damper member that is housed in the cylindrical case member alongside the elastic member along a direction perpendicular to the axial direction of the cylindrical case member, and that comes into contact with the rotating member rotating in the closing direction to damp the rotation of the rotating member; Equipped with The damper member is In the orthogonal direction, the elastic member is disposed farther from the rotating shaft member than the elastic member. Switchgear.

2. a slide member housed in the case member and movable along the axial direction by the elastic force of the elastic member and the pressing force of the rotating member rotating in the closing direction; Equipped with the elastic member is a coil spring, the slide member is cylindrical with one end open and the other end closed, and is disposed in a position to accommodate one end of the coil spring; The damper member is supported by being sandwiched between an outer peripheral surface of the slide member and an inner peripheral surface of the case member. The opening and closing device according to claim 1 .

3. The damper member has a main body portion and a rod portion that advances and retreats relative to the main body portion along the axial direction, An inclination prevention portion that prevents the rod portion from inclining is provided on the inner circumferential surface of the case member. The opening and closing device according to claim 1 or 2.

4. An electronic device comprising the opening and closing device according to claim 1.

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