Opening and closing device and electronic device

Abstract

The present application provides an opening and closing device and an electronic device, which can stably move a sliding member while suppressing the size increase. The opening and closing device includes a base member, a metal sliding housing, a rotating member that rotates about a rotating shaft member as a fulcrum in an opening direction and a closing direction, a coil spring housed in the sliding housing, and a sliding member housed in the sliding housing and pressed toward the rotating member by the elastic force of the coil spring. The sliding housing has a pair of side plate portions arranged to sandwich the sliding member from both sides in the width direction. At least one of the front end portion and the rear end portion of the side plate portion is bent toward the inside in the width direction in such a manner that the inner face can slide relative to the front face or the rear face of the sliding member.

Description

Technical Field

[0001] This invention relates to opening and closing devices, and electronic devices equipped with the same. Background Technology

[0002] Various hinges are used in electronic devices. For example, in a multifunction printer, a hinge is used to rotatably mount the original platen to the main body (see, for example, Patent Document 1).

[0003] The hinge disclosed in Patent Document 1 comprises: a cylindrical hinge housing fixed to the main body of the laminating machine; a sliding housing slidably housed within the hinge housing; a fixing plate rotatably supported at one end of the sliding housing and fixed to the original document pressure plate; and a resin sliding component slidably housed within the sliding housing.

[0004] In the hinge of Patent Document 1, a compression spring is provided between the bottom of the sliding housing and the sliding component. By transmitting the force of the compression spring to the fixed plate via the sliding component, the fixed plate can be rotated to lift upwards.

[0005] Furthermore, in the hinge of Patent Document 1, to improve internal sliding performance, a sliding protrusion is formed on the sliding member, extending from the sliding housing and sliding on the inner circumferential surface of the hinge housing. By allowing the sliding protrusion to slide against the inner circumferential surface of the hinge housing, sliding between the sliding housing and the hinge housing can be prevented. This improves the internal sliding performance of the hinge.

[0006] Existing technical documents

[0007] Patent documents

[0008] Patent Document 1: Patent No. 6492343 Summary of the Invention

[0009] The problem the invention aims to solve

[0010] However, when the sliding protrusion is provided on the sliding component in a manner that extends from the sliding housing, the size of the sliding component becomes larger. As a result, the hinge becomes larger.

[0011] Therefore, the object of the present invention is to provide an opening and closing device and an electronic device having the same, which can stably move a sliding component while suppressing its large size.

[0012] Solution for solving the problem

[0013] An opening and closing device according to one embodiment of the present invention includes:

[0014] A base component, which is open at one end on one side of the axial direction and has a bottom at the other end on the other side of the axial direction;

[0015] A metal sliding housing, housed within the base component, protrudes from the base component toward one side in the axial direction and is movable in the axial direction;

[0016] A rotating component, which is rotatably connected to the end of one side of the sliding housing along the axial direction via a rotating shaft component extending in a width direction orthogonal to the axial direction, and rotates about the rotating shaft component as a fulcrum in the opening and closing directions;

[0017] A helical spring, housed in the sliding housing, presses the rotating component toward the opening direction by means of elastic force when the rotating component rotates toward the closing direction;

[0018] And a sliding component, which is housed in the sliding housing, is movable in the axial direction, and is pressed toward the rotating component by the elastic force of the helical spring to contact the rotating component;

[0019] When the direction orthogonal to the axial direction and the width direction is set as the front-back direction, the sliding housing has a pair of first side plate portions, which are configured to clamp the sliding member from both sides in the width direction. At least one of the front end and the rear end of the pair of first side plate portions is bent inward in the width direction in such a way that the inner surface can slide relative to the front or the rear of the sliding member.

[0020] The effects of the invention

[0021] According to the present invention, an opening and closing device is available that can stably move the sliding component while suppressing its enlargement. Attached Figure Description

[0022] Figure 1 This is a perspective view showing an electronic device equipped with an opening and closing device according to an embodiment of the present invention.

[0023] Figure 2 This is a perspective view showing the opening and closing device involved in this embodiment.

[0024] Figure 3 This is a side view showing the opening and closing device in the closed state.

[0025] Figure 4 This is a front view showing the opening and closing device in the closed state.

[0026] Figure 5 This is a side view showing the opening and closing device in the open state.

[0027] Figure 6 This is a front view showing the opening and closing device in the open state.

[0028] Figure 7 This is a cross-sectional view showing the opening and closing device in the closed state. Figure 4 (A cross-sectional view with AA arrow lines).

[0029] Figure 8 This is a cross-sectional view showing the opening and closing device in the open state. Figure 6 (A cross-sectional view with BB arrow lines).

[0030] Figure 9 This is an exploded perspective view showing the components housed within the base component.

[0031] Figure 10 This is an exploded perspective view showing the components housed within the base component.

[0032] Figure 11 This is a diagram showing the relationship between the sliding housing and the sliding components.

[0033] Figure 12 This is a diagram showing the relationship between the sliding housing and the sliding components.

[0034] Explanation of reference numerals in the attached figures

[0035] 10. Opening and closing device; 12. Base component; 14. Sliding housing; 16. Rotating component; 16a. Camshaft; 18. Sliding component; 18c. Pressure-bearing part; 20. Locking component; 22. Rotating shaft component; 24a, 24b, 24c, 28. Helical spring; 26. Support component; 30. Damping component; 100. Electronic equipment. Detailed Implementation

[0036] Hereinafter, with reference to the accompanying drawings, the opening and closing device according to the embodiments of the present invention, and the electronic device having the same, will be described.

[0037] (The composition of electronic devices)

[0038] Figure 1This is a perspective view showing an electronic device equipped with an opening and closing device according to an embodiment of the present invention. The electronic device 100 includes a main body 102 and a cover 104. The cover 104 is closably connected to the main body 102 via a plurality of (two in this embodiment) opening and closing devices 10. Examples of electronic devices 100 include OA equipment such as scanners, fax machines, copiers, or multifunction printers, or rice cookers. Furthermore, the opening and closing device 10 according to this embodiment is not limited to electronic devices; it can be applied to automobiles, toilet seats, furniture, etc., for example.

[0039] (Composition of the opening and closing device)

[0040] Figure 2 This is a perspective view showing the opening and closing device according to this embodiment. Specifically, Figure 2 The image shows the opening and closing device in the closed state. Figure 3 This is a side view showing the opening and closing device in the closed state. Figure 4 This is a front view showing the opening and closing device in the closed state. Figure 5 This is a side view showing the opening and closing device in the open state. Figure 6 This is a front view showing the opening and closing device in the open state. Figure 7 This is a cross-sectional view showing the opening and closing device in the closed state. Figure 4 (Cross view of the AA arrow line). Figure 8 This is a cross-sectional view showing the opening and closing device in the open state. Figure 6 (A cross-sectional view with BB arrow lines). Figure 9 as well as Figure 10 This is an exploded perspective view showing the components housed within the base component. Furthermore, Figure 2 To facilitate understanding of the positional relationships of the various parts of the opening and closing device, arrows indicating mutually orthogonal directions (up / down, left / right, and front / back) are provided. In this embodiment, the up / down direction corresponds to the axial direction, and the left / right direction corresponds to the width direction. Figure 3 The following diagrams will also appropriately show the up-down, left-right, and front-back directions. However, the positional relationships of the various parts when using the opening and closing device are not limited to the up-down, left-right, and front-back positions shown in the diagrams.

[0041] like Figures 2 to 10 As shown, the opening and closing device 10 according to this embodiment includes: a base component 12, a sliding housing 14, a rotating component 16, and a sliding component 18. For example... Figure 1 As shown, in this embodiment, in the electronic device 100, the base member 12 is mounted on the main body 102 and the rotating member 16 is mounted on the cover 104 in such a way that the cover 104 can rotate relative to the main body 102.

[0042] The base component 12 has an opening at its upper end and a bottom 12a at its lower end. In this embodiment, the base component 12 is made of metal. In this embodiment, the base component 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 to face 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 portion 12b corresponds to the second side plate portion. The back plate portion 12c is formed to extend upward from the rear end portion of the bottom 12a and connect the rear ends portions of the pair of back plate portions 12c to each other. A limiting hole 12e is formed in the back plate portion 12c, extending in the up-down direction and penetrating the back plate portion 12c.

[0043] The sliding housing 14 is made of metal, housed within the base component 12, and protrudes upward from the base component 12, allowing it to move vertically. For example... Figures 7-10 As shown, in this embodiment, the sliding housing 14 has a bottom 14a and a pair of side plate portions 14b. In this embodiment, the side plate portion 14b corresponds to the first side plate portion.

[0044] like Figure 9 as well as Figure 10 As shown, a pair of side plate portions 14b are formed to extend upward from both ends in the left-right direction of the bottom 14a. The front end portion 14c and the rear end portion 14d of each side plate portion 14b are bent inward in the left-right direction. In each side plate portion 14b, a boss 14e protruding outward in the left-right direction is formed. In this embodiment, two bosses 14e spaced apart in the vertical direction are formed in each side plate portion 14b. In this embodiment, when the sliding housing 14 is housed within the base member 12, each boss 14e contacts the side plate portion 12b of the base member 12. Thus, the sliding housing 14 is properly positioned relative to the base member 12 in the left-right direction.

[0045] An ejector portion 14f is formed at the upper end of the rear end portion 14d of each sliding housing 14. The ejector portion 14f is configured to extend forward. Figure 10 As shown, a mounting portion 14g is formed at the rear end of the bottom 14a, extending in the vertical direction. A locking member 20 is mounted on the mounting portion 14g (for example, see reference...). Figure 7 In this embodiment, a screw is used as the locking member 20. In this embodiment, the locking member 20 is mounted to the mounting portion 14g such that a portion of the locking member 20 is located within the limiting hole 12e. In this embodiment, as... Figure 2 As shown, by engaging the locking member 20 at the edge of the limiting hole 12e, it is possible to prevent the sliding housing 14 from falling off the base member 12.

[0046] like Figures 2-8 As shown, the rotating component 16 is connected to the upper end of the sliding housing 14 via a rotating shaft component 22 extending in the left-right direction, so that it can rotate around the rotating shaft component 22 as a fulcrum. In this embodiment, the action of rotating the rotating component 16 around the rotating shaft component 22 as a fulcrum is called an opening and closing action. In the rotation direction of the rotating component 16, the direction away from the sliding housing 14 is called the opening direction, and the direction closer to the sliding housing 14 is called the closing direction. Figures 2-4 The closed state refers to the state where the rotating component 16 has been rotated to its full closed position. Furthermore, Figure 5 as well as Figure 6 The "open" state refers to the state in which the rotating part 16 is rotated to the open direction and fully open.

[0047] like Figure 4 as well as Figure 6 As shown, in this embodiment, the rotating member 16 has an inner member 60 and an outer member 62. Furthermore, in the following description of the rotating member 16, the vertical direction refers to the vertical direction when the opening / closing device 10 is in the closed state. The inner member 60 has a top plate portion 60a and a pair of side plate portions 60b extending downward from both ends of the top plate portion 60a in the left-right direction. The outer member 62 has a top plate portion 62a, a pair of side plate portions 62b extending downward from both ends of the top plate portion 62a in the left-right direction, 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. In the left-right direction, the top plate portion 62a is larger than the top plate portion 60a. In the left-right direction, the pair of side plate portions 62b are disposed outside the pair of side plate portions 60b.

[0048] The internal component 60 and the external component 62 are fixed to each other. In this embodiment, for example, the top plate portion 60a and the top plate portion 62a are fixed by screws or the like. In this embodiment, a side plate portion 14b of the sliding housing 14 is disposed between the side plate portions 60b and the side plate portions 62b. The rotation shaft component 22 is fixed to the pair of side plate portions 60b and the pair of side plate portions 62b, and is rotatably supported on the pair of side plate portions 14b. Thus, the pair of side plate portions 60b and the pair of side plate portions 62b can rotate relative to the pair of side plate portions 14b with the rotation shaft component 22 as the fulcrum.

[0049] like Figure 2As shown, a pair of through holes 62d are formed in the top plate portion 62a of the external component 62. The upper end of the side plate portion 14b is positioned in each through hole 62d. This allows the vertical dimension of the opening / closing device 10 to be reduced. Furthermore, in this embodiment, since the internal component 60 and the external component 62 are separate and independent components, the design of only one of the internal component 60 or the external component 62 can be changed depending on the shape of other components of the opening / closing device 10 or the shape of components of the electronic device 100. This increases the design freedom of the opening / closing device 10.

[0050] like Figure 2 as well as Figure 7 As shown, a camshaft 16a is provided below the rotating shaft component 22 and is supported by the rotating component 16. In this embodiment, the camshaft 16a serves as a cam portion for pressing the sliding component 18. In this embodiment, the camshaft 16a is supported by a pair of side plate portions 60b of the inner component 60 in a manner extending in the left-right direction. The camshaft 16a is configured such that when the rotating component 16 is in the open state from the opening / closing device 10 (see reference...), the camshaft 16a... Figure 8 When rotated in the closing direction, the pressure-receiving part 18c of the sliding member 18 (described later) can be pressed downwards.

[0051] like Figure 7 as well as Figure 8 As shown, the sliding member 18 is housed within the sliding housing 14, allowing it to move in the vertical direction. The sliding member 18 is, for example, made of resin material. Figures 7-10 As shown, the sliding member 18 is formed in a cylindrical shape, extending vertically and having an opening at its lower end. In this embodiment, the sliding member 18 has a top portion 18a, a cylindrical receiving portion 18b extending downward from the outer edge of the top portion 18a, and a pressure-receiving portion 18c protruding upward from the top portion 18a. In this embodiment, the receiving portion 18b has a cylindrical shape. In this embodiment, the upper surface of the pressure-receiving portion 18c becomes a pressure-receiving surface that contacts the camshaft 16a of the rotating member 16.

[0052] like Figure 9 As shown, the front surface 19 of the receiving portion 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 located at both ends of the front surface 19 in the left-right direction. The pair of second surfaces 19b protrudes further forward than the pair of first surfaces 19a and is located inside the pair of first surfaces 19a in the left-right direction. The third surface 19c protrudes further forward than the pair of second surfaces 19b and is located between the pair of second surfaces 19b in the left-right direction. In this embodiment, the third surface 19c is located at the center of the front surface 19 in the left-right direction.

[0053] like Figure 7 , Figure 8 as well as Figure 10 As shown, a pair of reinforcing ribs 21a extending in the vertical direction are formed at the rear end 21 of the receiving portion 18b of the sliding member 18. These reinforcing ribs 21a protrude further rearward than the rear end portion 14d of the sliding housing 14. The reinforcing ribs 21a are configured to slide relative to the inner surface of the back plate portion 12c of the base member 12 when the sliding housing 14 and the sliding member 18 are received in the base member 12. In this embodiment, by contacting the reinforcing ribs 21a with the inner surface of the base member 12, the sliding member 18 is properly positioned relative to the base member 12 in the front-rear direction.

[0054] like Figure 7 as well as Figure 8 As shown, a plurality of helical springs 24a, 24b, and 24c are provided within the sliding housing 14, between the bottom 14a and the sliding member 18. In this embodiment, the lower ends of the helical springs 24a and 24b are supported by the bottom 14a via the bottom 30a of the damping member 30 (described later) housed within the sliding housing 14, and the lower end of the helical spring 24c is supported by the bottom 14a via the cylindrical support member 26 housed within the sliding housing 14.

[0055] In this embodiment, the support member 26 is housed within the sliding housing 14, allowing it to move vertically relative to the base member 12 and the sliding housing 14. The support member 26 is, for example, made of resin material. Figures 7-10 As shown, the support member 26 is formed in a cylindrical shape with an opening at the upper end. In this embodiment, the support member 26 has a bottom 26a and a cylindrical receiving 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 receiving portion 26b has a cylindrical shape.

[0056] like Figure 7 as well as Figure 8As shown, in this embodiment, the upper ends of the coil springs 24a, 24b, and 24c are supported by the canopy portion 18a and housed in the housing portion 18b of the sliding member 18. The lower ends of the coil springs 24a and 24b are supported by the bottom 30a of the damping member 30 and housed in the housing portion 26b of the support member 26, and the lower end of the coil spring 24c is supported by the bottom 26a and housed in the housing portion 26b. In this embodiment, the support member 26 and the damping member 30 are pressed against the bottom 14a of the sliding housing 14 by the elastic force of the coil springs 24a, 24b, and 24c. Thus, the support member 26 and the damping member 30 are fixed to the bottom 14a. As a result, the support member 26 and the damping member 30 move integrally with the base member 12 and the sliding housing 14 in the vertical direction. Furthermore, the lower end of the coil spring 24b can also be supported by the bottom 26a of the support member 26, instead of by the bottom 30a of the damping member 30.

[0057] like Figures 7-10 As shown, in this embodiment, the four corners of the support member 26 are supported by the bottom 12a of the base member 12 via four helical springs 28. Furthermore, in Figure 7 as well as Figure 8 In the diagram, the helical spring 28 is simplified. The helical spring 28 is an energizing component used to energize the support member 26 upwards, thereby raising the opening and closing device 10. In this embodiment, a stable raising action can be achieved by having four helical springs 28 supporting the four corners of the support member 26 that supports the helical spring 24c.

[0058] Multiple helical springs 24a, 24b, and 24c are arranged coaxially, overlapping each other radially, and the winding directions of radially adjacent helical springs are opposite. Furthermore, in this embodiment, radially adjacent helical springs refer to those adjacent in a direction orthogonal to the axial direction of the helical springs. In this embodiment, the winding direction of helical spring 24b is opposite to the winding directions of the inner helical spring 24a and the outer helical spring 24c.

[0059] In this embodiment, the plurality of helical springs 24a, 24b, and 24c are arranged such that the outermost helical spring in the radial direction has a higher spring load. In this case, for example, the thicker helical spring in diameter can be used as the outer helical spring, and the thinner helical spring in diameter can be used as the inner helical spring. By using the thicker helical spring in diameter as the outer helical spring, the spring load can be made sufficiently large.

[0060] In this embodiment, the helical springs 24a, 24b, and 24c press the sliding member 18 toward the rotating member 16 so that the sliding member 18 remains in contact with the camshaft 16a when the rotating member 16 rotates. Thus, the force that rotates the rotating member 16 in the opening direction is applied to the rotating member 16 from the helical springs 24a, 24b, and 24c via the sliding member 18. That is, in this embodiment, the helical springs 24a, 24b, and 24c are housed in the sliding housing 14 so that when the rotating member 16 rotates in the closing direction, the rotating member 16 is pressed toward the opening direction by its elastic force.

[0061] A damping member 30 is provided, located inside the coil springs 24a, 24b, and 24c. Various known dampers, such as oil dampers, can be used as the damping member 30. In this embodiment, the bottom 30a of the damping member 30 passes through the through hole 26c of the support member 26 and is supported on the bottom 14a of the sliding housing 14. In this embodiment, the bottom 30a of the damping member 30 is pressed against the bottom 14a of the sliding housing 14 by the coil springs 24a and 24b.

[0062] In this embodiment, even when the sliding member 18 moves sharply downwards, such as Figure 7 As shown, the impact can also be mitigated by pressing the front end 30b of the damping member 30 toward the main body 30c of the damping member 30 through the top portion 18a of the sliding member 18.

[0063] In the opening and closing device 10 according to this embodiment, with the configuration described above, the sliding member 18 can move in the vertical direction by the pressing force of the camshaft 16a of the rotating member 16 on the pressed part 18c and the elastic force of the coil springs 24a, 24b, 24c. Specifically, in Figure 8 In the open / closed device 10 shown, when the rotating member 16 rotates in the closing direction, the pressure portion 18c of the sliding member 18 is pressed by the camshaft 16a of the rotating member 16, causing the sliding member 18 to move downwards. Furthermore, in Figure 7 In the closed state of the opening / closing device 10 shown, when the rotating member 16 rotates in the opening direction, the sliding member 18 is pressed upward by the elastic force of the coil springs 24a, 24b, and 24c. Furthermore, the shape of the camshaft 16a and the pressure-receiving part 18c described above is merely one example; various known shapes of opening / closing devices can be used as the shapes of the cam and the pressure-receiving part.

[0064] (Effects)

[0065] Figure 11 as well as Figure 12 This is a diagram showing the relationship between the sliding housing 14 and the sliding component 18. (See diagram below.) Figure 11 as well as Figure 12 As shown, in the opening and closing device 10 according to this embodiment, the sliding housing 14 has a pair of side plate portions 14b, which are configured to clamp the sliding 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 surface can slide relative to the front end 19 and the rear end 21 of the sliding member 18. In this case, since the sliding housing 14 and the sliding member 18 are in surface contact, the sliding housing 14 and the sliding member 18 can slide stably. Furthermore, since it is not necessary to provide a sliding protrusion extending from the sliding housing as in the past, it is possible to avoid the size of the sliding member 18 becoming larger. As a result, it is possible to prevent the opening and closing device 10 from becoming too large while ensuring the stable movement of the sliding member 18.

[0066] Furthermore, in the opening and closing device 10 according to this embodiment, a forward-pushing portion 14f 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 to the vicinity of the upper end of the sliding housing 14, the pushing portion 14f acts as a resistance, which can brake the upward movement of the sliding member 18. As a result, it is possible to prevent the rotating member 16 from bouncing up.

[0067] Furthermore, in the opening and closing device 10 according to this embodiment, the front ends 12d of the pair of side plate portions 12b of the base member 12 are bent inward in the left-right direction, passing in front of the front ends 14c of the pair of side plate portions 14b of the sliding housing 14. By bending the front ends 12d of the side plate portions 12b in this way, the sliding housing 14 can be properly positioned relative to the base member 12.

[0068] Furthermore, in this embodiment, the front end portion 12d of the side plate portion 12b is bent to extend in the left-right direction further inward than the front end portion 14c of the side plate portion 14b. In this embodiment, the front end portion 14c of the side plate portion 14b is positioned to face the first surface 19a of the front surface 19 of the sliding member 18. Furthermore, the portion of the front end portion 12d of the side plate portion 12b that protrudes further inward in the left-right direction than the front end portion 14c of the side plate portion 14b is positioned to face the second surface 19b of the front surface 19 of the sliding member 18.

[0069] (Modified example)

[0070] In the above embodiment, the opening and closing device 10 is described with a damping member 30, but the opening and closing device 10 may also be without a damping 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 with a support member 26, but the support member 26 may be omitted, and the coil springs 24a, 24b, and 24c may be directly supported by the sliding housing 14. In this case, the bottom 14a of the sliding housing 14 can be energized upwards by the coil spring 28 or other springs.

[0071] In the above embodiment, the case where the opening and closing device 10 has multiple helical springs 24a, 24b, and 24c has been described. However, the number of helical springs used to press the sliding member 18 can be 1, 2, or more than 4.

[0072] In the above embodiment, the case where the front end portion 14c and the rear end portion 14d of the side plate portion 14b of the sliding housing 14 are bent inward in the left-right direction has been described. However, either the front end portion 14c or the rear end portion 14d may be bent inward in the left-right direction. Furthermore, in the above embodiment, the case where a push-out portion 14f is provided at the upper end of the rear end portion 14d of the side plate portion 14b has been described. However, a push-out portion that pushes out rearward may also be formed at the upper end of the front end portion 14c of the side plate portion 14b.

[0073] In the above embodiment, the case where a reinforcing rib 21a is formed on the rear 21 of the sliding member 18 has been described. However, it is also possible to form a reinforcing rib on the front 19 of the sliding member 18 instead of on the rear 21. In this case, the shape of the base member can be appropriately modified so that the reinforcing rib contacts the inner surface of the base member. Furthermore, in the base member 12, the positional relationship in the front-rear direction between the pair of front ends 12d and the back plate portion 12c can also be reversed compared to the above embodiment.

[0074] Industrial availability

[0075] According to the present invention, an opening and closing device is available that can stably move the sliding component while suppressing its enlargement.

Claims

1. An opening and closing device, comprising: A base component, which is open at one end on one side of the axial direction and has a bottom at the other end on the other side of the axial direction; A metal sliding housing, housed within the base component, protrudes from the base component toward one side in the axial direction and is movable in the axial direction; A rotating component, which is rotatably connected to the end of one side of the sliding housing along the axial direction via a rotating shaft component extending in a width direction orthogonal to the axial direction, and rotates about the rotating shaft component as a fulcrum in the opening and closing directions; A helical spring, housed in the sliding housing, presses the rotating component toward the opening direction by means of elastic force when the rotating component rotates toward the closing direction; And a sliding component, which is housed in the sliding housing, is movable in the axial direction, and is pressed toward the rotating component by the elastic force of the helical spring to contact the rotating component; When the direction orthogonal to the axial direction and the width direction is set as the front-back direction, the sliding housing has a pair of first side plate portions, which are configured to clamp the sliding member from both sides in the width direction. At least one of the front end and the rear end of the pair of first side plate portions is bent inward in the width direction in such a way that the inner surface can slide relative to the front or the rear of the sliding member.

2. The opening and closing device as described in claim 1, wherein, At least one of the front end and the rear end of the bend in the first side plate portion, at the end of the one side in the axial direction, a push-out portion is formed that pushes inward in the front-rear direction.

3. The opening and closing device as described in claim 1, wherein, A reinforcing rib is formed in front of or behind the sliding member. The reinforcing rib protrudes further forward or backward than the sliding housing and is capable of sliding relative to the inner surface of the base member.

4. The opening and closing device as described in claim 3, wherein, The base component has a pair of second side plates that are configured to clamp the sliding housing from both sides in the width direction. In the pair of second side plates, the front or rear end portion is bent inward in the width direction, passing outward in the front or rear direction of the front or rear end portion of the first side plate portion.

5. The opening and closing device as described in claim 1, wherein, On each of the pair of first side plates, a boss is formed that protrudes outward in the width direction.

6. The opening and closing device as claimed in claim 1, wherein, A damping component is provided between the bottom of the base component and the sliding component, and the damping component is located inside the helical spring.

7. An electronic device comprising: Main body; lid part; And the opening and closing device as claimed in claim 1, which connects the cover to the main body so that the cover can be opened and closed relative to the main body.

Images