Switchgear and Electronic Equipment

Abstract

Provided is an opening and closing device that can stably move a slide member while suppressing an increase in size. [Solution] The opening and closing device 10 includes a base member 12, a metal sliding case 14, a rotating member 16 that rotates in an opening direction and a closing direction around a rotating shaft member 22 as a fulcrum, coil springs 24a, 24b, and 24c housed in the sliding case 14, and a sliding member 18 that is housed in the sliding case 14 and pressed toward the rotating member 16 by the elastic force of the coil springs. The sliding case 14 has a pair of side plate portions 14b that are provided to sandwich the sliding member 18 from both sides in the width direction. At least one of the front and rear ends of the side plate portions 14b is bent inward in the width direction so that the inner surface can slide against the front or rear surface of the sliding member 18.

Description

[Technical Field]

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

[0002] BACKGROUND ART Various hinges are used in electronic devices. For example, in a multifunction peripheral, a hinge is used to rotatably attach an original cover to a main body (see, for example, Patent Document 1).

[0003] The hinge disclosed in Patent Document 1 comprises a cylindrical hinge case fixed to the main body of the multifunction device, a slide case slidably housed in the hinge case, a fixed plate rotatably supported at one end of the slide case and fixed to the document pressing plate, and a resin slide member slidably housed in the slide case.

[0004] In the hinge of Patent Document 1, a compression spring is provided between the bottom of the slide case and the slide member. The force of the compression spring is transmitted to the fixed plate via the slide member, causing the fixed plate to rotate and lift upward.

[0005] Furthermore, in the hinge of Patent Document 1, in order to improve the sliding properties inside, the slide member is formed with a sliding protrusion that extends from the slide case and slides on the inner peripheral surface of the hinge case. By sliding the sliding protrusion against the inner peripheral surface of the hinge case, sliding between the slide case and the hinge case can be prevented. This improves the sliding properties inside the hinge. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent No. 6492343 Summary of the Invention [Problem to be solved by the invention]

[0007] However, when the sliding protrusion is provided on the sliding member so as to extend from the sliding case, the size of the sliding member increases, which in turn increases the size of the hinge.

[0008] Therefore, an object of the present invention is to provide an opening and closing device that can stably move a sliding member while suppressing an increase in size, and an electronic device equipped with the same. [Means for solving the problem]

[0009] An opening and closing device according to an embodiment of the present invention includes: a base member having an open end on one side in the axial direction and a bottom on the other side in the axial direction; a metal slide case that is housed in the base member so as to protrude from the base member to one side in the axial direction and be movable in the axial direction; a rotating member that is rotatably connected to the one end of the slide case in the axial direction via a rotating shaft member that extends in a width direction perpendicular to the axial direction, and that rotates in an opening direction and a closing direction around the rotating shaft member as a fulcrum; a coil spring that is housed in the slide case and that elastically presses the rotation member in the opening direction when the rotation member rotates in the closing direction; a slide member that is housed in the slide case so as to be movable in the axial direction and that is pressed toward the rotating member by the elastic force of the coil spring so as to come into contact with the rotating member, When a direction perpendicular to the axial direction and the width direction is defined as a front-rear direction, the slide case has a pair of first side plate portions provided to sandwich the slide member from both sides in the width direction, At least one of the front end and the rear end of each of the pair of first side plate portions is bent inward in the width direction so that the inner surface can slide along the front surface or the rear surface of the slide member. [Effects of the Invention]

[0010] According to the present invention, an opening and closing device can be obtained that can stably move a slide member while suppressing an increase in size. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a perspective view showing an electronic device equipped with an opening and closing device according to one embodiment of the present invention. [Figure 2] FIG. 2 is a perspective view showing the opening and closing device according to this embodiment. [Figure 3] FIG. 3 is a side view showing the opening and closing device in a closed state. [Figure 4] FIG. 4 is a front view showing the opening and closing device in a closed state. [Figure 5] FIG. 5 is a side view showing the opening and closing device in the open state. [Figure 6] FIG. 6 is a front view showing the opening and closing device in the open state. [Figure 7] FIG. 7 is a cross-sectional view showing the opening and closing device in a closed state (a cross-sectional view taken along the line AA in FIG. 4). [Figure 8] FIG. 8 is a cross-sectional view showing the opening and closing device in the open state (a cross-sectional view taken along the line BB in FIG. 6). [Figure 9] FIG. 9 is an exploded perspective view showing the members housed in the base member. [Figure 10] FIG. 10 is an exploded perspective view showing the members housed in the base member. [Figure 11] FIG. 11 is a diagram showing the relationship between the slide case and the slide member. [Figure 12] FIG. 12 is a diagram showing the relationship between the slide case and the slide member. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, an opening / closing device according to an embodiment of the present invention and an electronic device including the same will be described with reference to the drawings.

[0013] (Electronic device configuration) FIG. 1 is a perspective view showing an electronic device equipped with an opening and closing device according to one embodiment of the present invention. The electronic device 100 includes a main body 102 and a lid 104. The lid 104 is connected to the main body 102 by a plurality of (two in this embodiment) opening and closing devices 10 so as to be openable and closable relative to the main body 102. 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 and closing device 10 according to this embodiment may be used to connect two members so as to be openable and closable, and may be applied not only to electronic devices but also to automobiles, toilet seats, furniture, and the like.

[0014] (Switchgear configuration) FIG. 2 is a perspective view showing an opening / closing device according to this embodiment. Specifically, FIG. 2 shows the opening / closing device in a closed state. FIG. 3 is a side view showing the opening / closing device in a closed state, FIG. 4 is a front view showing the opening / closing device in a closed state, FIG. 5 is a side view showing the opening / closing device in an open state, and FIG. 6 is a front view showing the opening / closing device in an open state. FIG. 7 is a cross-sectional view showing the opening / closing device in a closed state (a cross-sectional view taken along arrow AA in FIG. 4), and FIG. 8 is a cross-sectional view showing the opening / closing device in an open state (a cross-sectional view taken along arrow BB in FIG. 6). FIGS. 9 and 10 are exploded perspective views showing components housed in a base member. Note that FIG. 2 includes arrows indicating mutually orthogonal vertical, horizontal, and front-to-rear directions to facilitate understanding of the positional relationships of the various components of the opening / closing device. In this embodiment, the vertical direction corresponds to the axial direction, and the left-to-right direction corresponds to the width direction. In FIG. 3 and subsequent figures, the vertical, horizontal, and front-to-rear directions are also appropriately indicated. However, the positional relationships of the various components when using the opening / closing device are not limited to the vertical, horizontal, and front-to-rear positional relationships shown in each figure.

[0015] 2 to 10, the opening and closing device 10 according to this embodiment includes a base member 12, a sliding case 14, a rotating member 16, and a sliding member 18. As shown in FIG. 1, in this embodiment, in an electronic device 100, the base member 12 is attached to the main body 102, and the rotating member 16 is attached to the lid 104 so that the lid 104 is rotatable relative to the main body 102.

[0016] The base member 12 has an open upper end and a bottom portion 12a at its lower end. In this embodiment, the base member 12 is made of metal. In this embodiment, the base member 12 further has a pair of side plate portions 12b and a back plate portion 12c. The pair of side plate portions 12b are arranged opposite each other in the left-right direction. The front end portion 12d of each side plate portion 12b is bent inward in the left-right direction. In this embodiment, the side plate portions 12b correspond to the second side plate portions. The back plate portion 12c is formed so as to extend upward from the rear end portion of the bottom portion 12a and to connect the rear ends of the pair of back plate portions 12c. A restricting hole 12e is formed in the back plate portion 12c so as to extend in the up-down direction and penetrate the back plate portion 12c.

[0017] The slide case 14 is made of metal and is housed in the base member 12 so as to protrude upward from the base member 12 and to be movable in the up and down direction. As shown in Figures 7 to 10, in this embodiment, the slide case 14 has a bottom portion 14a and a pair of side plate portions 14b. In this embodiment, the side plate portion 14b corresponds to the first side plate portion.

[0018] As shown in FIGS. 9 and 10 , a pair of side plates 14b are formed to extend upward from both left-right ends of the bottom portion 14a. The front end 14c and rear end 14d of each side plate 14b are bent inward in the left-right direction. Each side plate 14b is formed with a boss 14e that protrudes outward in the left-right direction. In this embodiment, each side plate 14b is formed with two bosses 14e spaced apart in the up-down direction. In this embodiment, when the sliding case 14 is housed in the base member 12, each boss 14e contacts the side plate 12b of the base member 12. This allows the sliding case 14 to be appropriately positioned relative to the base member 12 in the left-right direction.

[0019] A protruding portion 14f is formed at the upper end of the rear end portion 14d of each slide case 14. The protruding portion 14f is formed so as to be protruded forward. As shown in FIG. 10, a mounting portion 14g is formed along the up-down direction at the rear end portion of the bottom portion 14a. A locking member 20 (see, for example, FIG. 7) is attached to the mounting portion 14g. In this embodiment, a screw is used as the locking member 20. In this embodiment, the locking member 20 is attached to the mounting portion 14g so that a portion of the locking member 20 is positioned within the restriction hole 12e. In this embodiment, as shown in FIG. 2, the locking member 20 catches on the edge of the restriction hole 12e, thereby preventing the slide case 14 from falling off the base member 12.

[0020] As shown in FIGS. 2 to 8, the rotating member 16 is connected to the upper end of the sliding case 14 via the rotating shaft member 22 extending in the left-right direction so as to rotate around the rotating shaft member 22 as a fulcrum. In this embodiment, the operation of the rotating member 16 rotating around the rotating shaft member 22 as a fulcrum is referred to as an opening / closing operation. In the rotation direction of the rotating member 16, the direction away from the sliding case 14 is referred to as the opening direction, and the direction toward the sliding case 14 is referred to as the closing direction. The closed state in FIGS. 2 to 4 refers to a state in which the rotating member 16 has rotated fully in the closing direction. Furthermore, the open state in FIGS. 5 and 6 refers to a state in which the rotating member 16 has rotated fully in the opening direction.

[0021] As shown in FIGS. 4 and 6 , in this embodiment, the rotating member 16 includes an inner member 60 and an outer member 62. The vertical direction in the following description of the rotating member 16 refers to the vertical direction when the opening / closing device 10 is in the closed state. The inner member 60 includes a top plate 60a and a pair of side plate portions 60b extending downward from both left-right ends of the top plate 60a. The outer member 62 includes a top plate 62a, a pair of side plate portions 62b extending downward from both left-right ends of the top plate 62a, and a pair of flange portions 62c extending outward in the left-right direction from the lower ends of the pair of side plate portions 62b. The top plate 62a is larger in the left-right direction than the top plate 60a. The pair of side plate portions 62b are located further outward in the left-right direction than the pair of side plate portions 60b.

[0022] The inner member 60 and the outer member 62 are fixed to each other. In this embodiment, the top plate portion 60a and the top plate portion 62a are fixed to each other by, for example, screws or the like. In this embodiment, the side plate portion 14b of the slide case 14 is disposed between the side plate portions 60b and the side plate portions 62b. The rotating shaft member 22 is fixed to the pair of side plate portions 60b and the pair of side plate portions 62b, and is rotatably supported by the pair of side plate portions 14b. This allows the pair of side plate portions 60b and the pair of side plate portions 62b to rotate relative to the pair of side plate portions 14b, with the rotating shaft member 22 as a fulcrum.

[0023] As shown in FIG. 2, a pair of through holes 62d are formed in the top plate portion 62a of the outer member 62. The upper ends of the side plate portions 14b are positioned in the through holes 62d, respectively. This allows the vertical dimension of the opening and closing device 10 to be reduced. In this embodiment, the inner member 60 and the outer member 62 are separate members, so it is possible to change the design of only one of the inner member 60 or the outer member 62 depending on the shapes of the other components of the opening and closing device 10 or the shapes of the components of the electronic device 100. This increases the degree of freedom in designing the opening and closing device 10.

[0024] 2 and 7, a camshaft 16a is provided below the rotary shaft member 22 so as to be supported by the rotary member 16. In this embodiment, the camshaft 16a functions as a cam portion that presses the slide member 18. In this embodiment, the camshaft 16a is supported by a pair of side plate portions 60b of the inner member 60 so as to extend in the left-right direction. The camshaft 16a is configured to be able to press downward a pressure-receiving portion 18c (described later) of the slide member 18 when the rotary member 16 rotates in the closing direction from the open state of the opening-closing device 10 (see FIG. 8).

[0025] As shown in FIGS. 7 and 8, the slide member 18 is housed in the slide case 14 so as to be movable in the vertical direction. The slide member 18 is made of, for example, a resin material. As shown in FIGS. 7 to 10, the slide member 18 is formed in a cylindrical shape that extends in the vertical direction and has an open lower end. In this embodiment, the slide member 18 has a ceiling portion 18a, a cylindrical housing portion 18b that extends downward from the outer edge of the ceiling portion 18a, and a pressure-receiving portion 18c that protrudes upward from the ceiling portion 18a. In this embodiment, the housing portion 18b has a rectangular cylindrical shape. In this embodiment, the upper surface of the pressure-receiving portion 18c serves as a pressure-receiving surface that comes into contact with the camshaft 16a of the rotating member 16.

[0026] As shown in FIG. 9, the front surface 19 of the storage section 18b includes a pair of first surfaces 19a, a pair of second surfaces 19b, and a third surface 19c. The pair of first surfaces 19a are provided at both ends of the front surface 19 in the left-right direction. The pair of second surfaces 19b protrude forward from the pair of first surfaces 19a and are provided inside the pair of first surfaces 19a in the left-right direction. The third surface 19c protrudes forward from the pair of second surfaces 19b and is provided between the pair of second surfaces 19b in the left-right direction. In this embodiment, the third surface 19c is provided in the center of the front surface 19 in the left-right direction.

[0027] 7, 8, and 10, a pair of ribs 21a extending in the up-down direction are formed on the rear surface 21 of the housing portion 18b of the slide member 18 so as to protrude rearward beyond the rear end portion 14d of the slide case 14. The ribs 21a are provided so as to be able to slide relative to the inner surface of the back plate portion 12c of the base member 12 when the slide case 14 and the slide member 18 are housed in the base member 12. In this embodiment, the slide member 18 is appropriately positioned relative to the base member 12 in the front-rear direction by the ribs 21a coming into contact with the inner surface of the base member 12.

[0028] 7 and 8, a plurality of coil springs 24a, 24b, and 24c are provided in the slide case 14 between the bottom 14a and the slide member 18. In this embodiment, the lower ends of the coil springs 24a and 24b are supported on the bottom 14a via the bottom 30a of a damper member 30 (described later) housed in the slide case 14, and the lower end of the coil spring 24c is supported on the bottom 14a via a cylindrical support member 26 housed in the slide case 14.

[0029] In this embodiment, the support member 26 is housed in the slide case 14 so as to be able to move up and down relative to the base member 12 in conjunction with the slide case 14. The support member 26 is made of, for example, a resin material. As shown in FIGS. 7 to 10, the support member 26 is formed in a cylindrical shape with an open upper end. In this embodiment, the support member 26 has a bottom 26a and a cylindrical housing portion 26b extending upward from the outer edge of the bottom 26a. A through-hole 26c is formed in the center of the bottom 26a. In this embodiment, the housing portion 26b has a rectangular cylindrical shape.

[0030] As shown in FIGS. 7 and 8 , in this embodiment, the upper ends of the coil springs 24a, 24b, and 24c are supported by the ceiling 18a so as to be housed in the housing 18b of the slide member 18. The lower ends of the coil springs 24a and 24b are supported by the bottom 30a of the damper member 30 so as to be housed in the housing 26b of the support member 26, and the lower end of the coil spring 24c is supported by the bottom 26a so as to be housed in the housing 26b. In this embodiment, the support member 26 and the damper member 30 are pressed against the bottom 14a of the slide case 14 by the elastic forces of the coil springs 24a, 24b, and 24c. This fixes the support member 26 and the damper member 30 to the bottom 14a. As a result, the support member 26 and the damper member 30 move vertically together with the slide case 14 relative to the base member 12. The lower end of the coil spring 24b may be supported by the bottom portion 26a of the support member 26, instead of the bottom portion 30a of the damper member 30.

[0031] As shown in FIGS. 7 to 10, in this embodiment, the four corners of the support member 26 are supported by the bottom 12a of the base member 12 via four coil springs 28. Note that in FIGS. 7 and 8, the coil springs 28 are shown in a simplified form. The coil springs 28 are biasing members that bias the support member 26 upward to bring the opening and closing device 10 into a lifted state. In this embodiment, a stable lifting operation is possible by supporting the four corners of the support member 26 that supports the coil spring 24c with the four coil springs 28.

[0032] The multiple coil springs 24a, 24b, and 24c are positioned coaxially, overlap one another when viewed radially, and are arranged so that the winding directions of adjacent coil springs in the radial direction are opposite to each other. Note that, in this embodiment, adjacent coil springs in the radial direction refer to adjacent coil springs in a direction perpendicular to the axial direction of the coil springs. In this embodiment, the winding direction of the coil spring 24b is opposite to the winding directions of the inner coil spring 24a and the outer coil spring 24c.

[0033] In this embodiment, the multiple coil springs 24a, 24b, and 24c are arranged so that the spring load acting on the outermost coil springs in the radial direction is higher. In this case, for example, a coil spring with a larger wire diameter can be used as the outer coil spring, and a coil spring with a smaller wire diameter can be used as the inner coil spring. By using a coil spring with a larger wire diameter as the outer coil spring in this way, the spring load can be made sufficiently large.

[0034] In this embodiment, the coil springs 24a, 24b, and 24c press the slide member 18 toward the rotation member 16 so that the slide member 18 remains in contact with the camshaft 16a when the rotation member 16 rotates. As a result, a force that rotates the rotation member 16 in the opening direction is applied to the rotation member 16 from the coil springs 24a, 24b, and 24c via the slide member 18. That is, in this embodiment, the coil springs 24a, 24b, and 24c are housed in the slide case 14 so that when the rotation member 16 rotates in the closing direction, they press the rotation member 16 in the opening direction by their elastic force.

[0035] A damper member 30 is provided so as to be positioned inside the coil springs 24a, 24b, and 24c. Various known dampers, such as an oil damper, can be used as the damper member 30. In this embodiment, a bottom portion 30a of the damper member 30 passes through a through-hole 26c of the support member 26 and is supported by the bottom portion 14a of the slide case 14. In this embodiment, the bottom portion 30a of the damper member 30 is pressed against the bottom portion 14a of the slide case 14 by the coil springs 24a and 24b.

[0036] In this embodiment, even if the slide member 18 moves downward suddenly, the tip portion 30b of the damper member 30 is pushed toward the main body portion 30c of the damper member 30 by the ceiling portion 18a of the slide member 18, as shown in Figure 7, thereby absorbing the impact.

[0037] In the opening / closing device 10 according to this embodiment, the above-described configuration allows the slide member 18 to move vertically due to the pressing force from the camshaft 16a of the rotating member 16 against the pressure-receiving portion 18c and the elastic force of the coil springs 24a, 24b, and 24c. Specifically, in the opening / closing device 10 in the open state shown in FIG. 8 , when the rotating member 16 rotates in the closing direction, the pressure-receiving portion 18c of the slide member 18 is pressed by the camshaft 16a of the rotating member 16, causing the slide member 18 to move downward. Also, in the opening / closing device 10 in the closed state shown in FIG. 7 , when the rotating member 16 rotates in the opening direction, the slide member 18 is pressed by the elastic force of the coil springs 24a, 24b, and 24c and moves upward. The shapes of the camshaft 16a and the pressure-receiving portion 18c described above are merely examples, and the shapes of the cam portion and the pressure-receiving portion may be those of various known opening / closing devices.

[0038] (Action and effect) 11 and 12 are diagrams illustrating the relationship between the slide case 14 and the slide member 18. As shown in FIGS. 11 and 12, in the opening / closing device 10 according to this embodiment, the slide case 14 has a pair of side plate portions 14b arranged to sandwich the slide member 18 from both sides in the left-right direction. The front end portion 14c and the rear end portion 14d of the side plate portions 14b are bent inward in the left-right direction so that the inner surfaces thereof can slide against the front surface 19 and the rear surface 21 of the slide member 18. In this case, the slide case 14 and the slide member 18 are in surface contact with each other, allowing for stable sliding between the slide case 14 and the slide member 18. Furthermore, since there is no need to provide a sliding protrusion extending from the slide case as in the conventional case, the size of the slide member 18 can be prevented from increasing. As a result, the slide member 18 can be moved stably while preventing the opening / closing device 10 from becoming larger.

[0039] Furthermore, in the opening and closing device 10 according to this embodiment, a protruding portion 14f that is protruded forward is formed at the upper end of the bent rear end portion 14d of the side plate portion 14b. In this case, when the sliding member 18 moves close to the upper end portion of the sliding case 14, the protruding portion 14f acts as a resistance, and can brake the upward movement of the sliding member 18. As a result, the rotating member 16 can be prevented from bouncing up.

[0040] Furthermore, in the opening and closing device 10 according to this embodiment, the front end portions 12d of the pair of side plate portions 12b of the base member 12 are bent inward in the left-right direction so as to pass in front of the front end portions 14c of the pair of side plate portions 14b of the sliding case 14. By bending the front end portions 12d of the side plate portions 12b in this manner, the sliding case 14 can be appropriately positioned relative to the base member 12.

[0041] In this embodiment, the front end 12d of the side plate 12b is bent so as to extend further inward in the left-right direction than the front end 14c of the side plate 14b. In this embodiment, the front end 14c of the side plate 14b is provided so as to face a first surface 19a of the front surface 19 of the slide member 18. Furthermore, the portion of the front end 12d of the side plate 12b that protrudes further inward in the left-right direction than the front end 14c of the side plate 14b is provided so as to face a second surface 19b of the front surface 19 of the slide member 18.

[0042] (Variation) In the above embodiment, the opening and closing device 10 is described as including the damper member 30, but the opening and closing device 10 does not have to be provided with the damper member 30. In this case, the lower ends of the coil springs 24a and 24b may be supported by the support member 26. Furthermore, in the above embodiment, the opening and closing device 10 is described as including the support member 26, but the coil springs 24a, 24b, and 24c may be directly supported by the sliding case 14 without providing the support member 26. In this case, the bottom 14a of the sliding case 14 may be urged upward by the coil spring 28 or another spring.

[0043] In the above-described embodiment, the opening and closing device 10 has been described as having multiple coil springs 24a, 24b, and 24c, but the number of coil springs for pressing the slide member 18 may be one, two, four or more.

[0044] In the above embodiment, the front end 14c and the rear end 14d of the side plate 14b of the slide case 14 are bent inward in the left-right direction, but only one of the side plate 14b and the front end 14c may be bent inward in the left-right direction. Also, in the above embodiment, the protruding portion 14f is provided at the upper end of the rear end 14d of the side plate 14b, but a protruding portion may be formed at the upper end of the front end 14c of the side plate 14b so as to be protruded rearward.

[0045] In the above embodiment, the ribs 21a are formed on the rear surface 21 of the slide member 18, but the ribs may be formed on the front surface 19 of the slide member 18 instead of the rear surface 21. In this case, the shape of the base member may be appropriately modified so that the ribs contact the inner surface of the base member. Also, in the base member 12, the positional relationship in the front-to-rear direction between the pair of front end portions 12d and the back plate portion 12c may be reversed from that in the above embodiment. [Industrial Applicability]

[0046] According to the present invention, an opening and closing device can be obtained that can stably move a slide member while suppressing an increase in size. [Explanation of symbols]

[0047] 10 Switchgear 12 Base member 14 Slide Case 16 Rotating member 16a camshaft 18 Slide member 18c Pressure receiving part 20 Locking member 22 Rotating shaft member 24a, 24b, 24c, 28 Coil spring 26 Support member 30 Damper member 100 Electronic equipment

Claims

1. a base member having an open end on one side in the axial direction and a bottom on the other side in the axial direction; a metal slide case that is housed in the base member so as to protrude from the base member to one side in the axial direction and be movable in the axial direction; a rotating member that is rotatably connected to the one end of the slide case in the axial direction via a rotating shaft member that extends in a width direction perpendicular to the axial direction, and that rotates in an opening direction and a closing direction around the rotating shaft member as a fulcrum; a coil spring that is housed in the slide case and that elastically presses the rotation member in the opening direction when the rotation member rotates in the closing direction; a slide member that is housed in the slide case so as to be movable in the axial direction and that is pressed toward the rotating member by the elastic force of the coil spring so as to come into contact with the rotating member, When a direction perpendicular to the axial direction and the width direction is defined as a front-rear direction, the slide case has a pair of first side plate portions provided to sandwich the slide member from both sides in the width direction, An opening and closing device, wherein at least one of the front end and rear end of each of the pair of first side plate portions is bent inward in the width direction so that the inner surface can slide against the front or rear surface of the slide member.

2. 2. The opening and closing device according to claim 1, wherein at least one of the bent front end portion and the bent rear end portion of the first side plate portion has an extrusion portion extruded inward in the front-to-rear direction at the end portion on one side in the axial direction.

3. 2. The opening and closing device according to claim 1, wherein a rib is formed on the front or rear surface of the slide member so as to protrude forward or rearward beyond the slide case and to be able to slide along the inner surface of the base member.

4. the base member has a pair of second side plate portions provided to sandwich the slide case from both sides in the width direction, 4. The opening and closing device according to claim 3, wherein the front end or rear end of each of the pair of second side plate portions is bent inward in the width direction so as to pass outside the bent front end or rear end of the first side plate portion in the fore-and-aft direction.

5. The opening and closing device according to claim 1 , wherein a boss protruding outward in the width direction is formed on each of the pair of first side plate portions.

6. The opening and closing device according to claim 1 , further comprising a damper member provided between the bottom of the base member and the slide member so as to be positioned inside the coil spring.

7. An electronic device comprising: a main body; a lid; and the opening / closing device according to claim 1 that connects the lid to the main body so that the lid can be opened and closed relative to the main body.

Images