CN211928373U

CN211928373U - Cover holding structure

Info

Publication number: CN211928373U
Application number: CN201990000081.1U
Authority: CN
Inventors: 武田干也
Original assignee: NEC Display Solutions Ltd
Current assignee: Sharp NEC Display Solutions Ltd
Priority date: 2018-06-11
Filing date: 2019-06-05
Publication date: 2020-11-13
Anticipated expiration: 2029-06-05
Also published as: WO2019239981A1; JP2019215401A

Abstract

The cover holding structure includes: a main body; a cover covering a first area in a surface of the body; a rotation shaft portion protruding from a second region in the surface of the body; a flange portion provided at a front end of the rotation shaft portion in a protruding direction and protruding outward from the rotation shaft portion in a radial direction; and a pressing plate disposed so as to be in surface contact with at least the second region. The pressure plate includes a plate body having an insertion hole through which the rotation shaft is inserted, and a spring portion provided at a peripheral portion of the insertion hole and elastically deformed by being interposed between the plate body and the flange portion, thereby pressing the plate body toward the second region. The pressing plate is capable of rotating about the rotation shaft between a first rotation position where the plate body presses the cover against the surface of the body by the elastic force of the spring portion and a second rotation position where the plate body does not press the cover.

Description

Cover holding structure

Technical Field

The utility model relates to a cover keeps structure.

Background

Patent document 1 discloses a lock for a lamp cover of a projector, which is locked to prevent the lamp cover from being opened. The lock device of patent document 1 includes a projection (second shaft portion) that can be exposed to and retracted from the inside and outside of the projector housing, and a recess (movement prevention device) that is formed in a lamp cover disposed on the outside of the projector housing and into which the projection projecting from the projector housing is inserted. The convex part protruding from the projector housing is inserted into the concave part of the shade, thereby preventing the opening of the shade.

Prior art documents

Patent document

Patent document 1: japanese laid-open patent publication No. 2009-116327

SUMMERY OF THE UTILITY MODEL

Problem to be solved by utility model

However, in an electronic device such as a display device or a projector, it is conceivable that a cover covering a predetermined portion of a main body is held by the main body by being pressed against the main body by a pressure plate. In order to easily attach and detach the cover to and from the main body, it is conceivable to attach the pressure plate to the main body so that the pressure plate moves along the surface of the main body or the cover between a first position where the cover is pressed and a second position where the cover is not pressed. In addition, it is conceivable that a convex portion is formed on the platen, the convex portion protruding from an opposing surface of the platen opposing the surfaces of the main body and the cover, and the convex portion enters a concave portion formed in the cover in a state where the platen is arranged at the first position.

However, in the structure in which the pressure plate has the convex portion, in a state in which the pressure plate is moved from the first position and the convex portion is disengaged from the concave portion of the cover, the pressure plate is elastically deformed by flexure, and the convex portion is pressed against the surfaces of the body and the cover. Therefore, when the platen is moved, the surface of the main body or the cover may be damaged or deformed by the convex portion, and the design of the electronic apparatus may be damaged.

In the structure in which the pressing plate has the convex portion, the shape of the pressing plate repeatedly changes between a warped shape in which the pressing plate is deformed by being flexed and a horizontal shape in which the pressing plate is not deformed by repeating the movement of the pressing plate between the first position and the second position. Therefore, the spring performance of the pressure plate deteriorates and the pressure plate is plastically deformed into a warped shape, and the amount of the convex portion of the pressure plate entering the concave portion decreases. As a result, the cover may be detached from the main body.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a cover holding structure capable of holding a cover on a main body even when the movement of a platen is repeated while suppressing damage or deformation of the main body and the cover.

Means for solving the problems

The utility model discloses a cover keeps the characterized in that of structure, possesses: a main body; a cover covering a first area in a surface of the body; a rotation shaft portion protruding from a second region in the surface of the body; a flange portion provided at a front end of the rotation shaft portion in a protruding direction and protruding outward from the rotation shaft portion in a radial direction; and a pressing plate having a plate body that is disposed in surface contact with at least the second region and has an insertion hole through which the rotation shaft portion is inserted, and a spring portion that is provided at a peripheral portion of the insertion hole and is elastically deformed by being sandwiched between the plate body and the flange portion to press the plate body toward the second region, the pressing plate being capable of rotating about the rotation shaft portion between a first rotation position where the plate body presses the cover toward the surface of the body by an elastic force of the spring portion and a second rotation position where the plate body does not press the cover.

Effect of the utility model

According to the present invention, the plate main body of the pressing plate presses the cover toward the surface of the main body by the elastic force of the spring portion sandwiched between the peripheral portion and the flange portion of the insertion hole of the plate main body, and the cover can be held in the main body. Therefore, it is not necessary to form a convex portion on the platen. As a result, even if the platen is rotated, the body and the cover can be prevented from being damaged or deformed.

Further, the spring portion is configured to press the plate main body against the second region of the main body, and therefore, the shape of the spring portion can be prevented from changing regardless of the rotational position of the platen. In addition, it is possible to suppress the shape of the plate main body from changing (for example, flexural deformation) according to the rotational position of the pressure plate.

This can suppress or prevent plastic deformation of the plate body and the spring portion. Therefore, even if the rotational movement of the platen is repeated between the first rotational position and the second rotational position, the cover can be satisfactorily held by the main body.

Drawings

Fig. 1 is a plan view showing a state in which a platen is arranged at a first rotational position, in a cover holding structure according to an embodiment of the present invention.

Fig. 2 is an enlarged plan view showing an area R of fig. 1 in an enlarged manner.

Fig. 3 is an enlarged plan view showing a state in which the platen is arranged at the second rotational position in the cover holding structure of fig. 1 and 2.

Fig. 4 is a sectional view taken along line IV-IV of fig. 2.

Fig. 5 is a perspective view showing a platen according to an embodiment of the present invention.

Fig. 6 is a plan view showing a platen according to an embodiment of the present invention.

Fig. 7 is a view in section from VII to VII in fig. 6.

Fig. 8 is a sectional view taken along line VIII-VIII of fig. 6.

Fig. 9A is a cross-sectional view showing a process of attaching the pressure plate to the main body in the cover holding structure according to the embodiment of the present invention.

Fig. 9B is a cross-sectional view showing a process of attaching the pressure plate to the main body in the cover holding structure according to the embodiment of the present invention.

Fig. 10 is a cross-sectional view showing a process of attaching the pressure plate to the main body in the cover holding structure according to the embodiment of the present invention.

Fig. 11 is a cross-sectional view showing a process of attaching the pressure plate to the main body in the cover holding structure according to the embodiment of the present invention.

Fig. 12 is an enlarged cross-sectional view showing a cover holding structure according to another embodiment of the present invention.

Description of the reference symbols

1 cover holding structure

2 main body

3 cover

4 rotating shaft part

5 Flange part

6 pressing plate

7 screw with gasket

11 first region

12 second region

21 surface of the cover 3

31 internal thread of the rotation shaft 4

32 front end of the rotation shaft 4

35 flat gasket

41 plate body

42 spring part

43 insertion hole

44 guide piece

45 formation site

46 pressing part

47 first plate spring part

48 second plate spring portion

52 extension plate part

53 extending the folded-back portion of the plate portion 52

P1 first rotational position

P2 second rotational position

Detailed Description

Hereinafter, an embodiment of the present invention will be described with reference to fig. 1 to 11. Fig. 1 is a plan view showing a state in which a platen is arranged at a first rotational position in the cover holding structure according to the embodiment. Fig. 2 is an enlarged plan view showing an area R of fig. 1 in an enlarged manner. Fig. 3 is an enlarged plan view showing a state in which the platen is arranged at the second rotational position in the cover holding structure shown in fig. 1 and 2. Fig. 4 is an IV-IV cross-sectional view of the enlarged top view shown in fig. 2.

As shown in fig. 1 to 4, the cover holding structure 1 of the present embodiment includes a main body 2, a cover 3, a rotating shaft 4, a flange 5, and a pressure plate 6.

The main body 2 may constitute a housing in an electronic apparatus such as a display device. On the surface of the main body 2, which is the outer surface of the housing or the like, there are a first region 11 covered by the cover 3 and a second region 12 not covered by the cover 3.

The specific structure and shape of the main body 2 may be arbitrary. For example, the number of the first regions 11 of the main body 2 may be one, but in the present embodiment, a plurality of the first regions are arranged with a space therebetween in a plan view of the main body 2 as viewed from the front side of the main body 2. Specifically, the main body 2 has two first regions 11. The first region 11 may be formed on the same plane as the second region 12, for example, but in the present embodiment, as shown in fig. 4, it is located lower than the second region 12. In the present embodiment, the second region 12 is formed flat. Further, a portion of the main body 2 constituting the second region 12 located between the two first regions 11 and provided with the rotation shaft portion 4 described later is constituted by fixing the other plate-like members 13 in an overlapping manner.

As shown in fig. 1 to 4, the cover 3 covers the first region 11 of the main body 2. The cover holding structure 1 of the present embodiment includes two covers 3 that cover the two first regions 11, respectively.

The shape of the cover 3 may be arbitrary. The cover 3 of the present embodiment is formed in a shape corresponding to each first region 11 in a plan view. In the present embodiment, the surface 21 of the cover 3 facing outward in a state where the cover 3 covers the first region 11 of the main body 2 is located at the same height as the second region 12 of the main body 2. That is, in a state where the cover 3 covers the first region 11 of the main body 2, the surface 21 of the cover 3 constitutes the same plane together with the second region 12 of the main body 2.

Although the cover 3 illustrated in fig. 1 to 4 has a plurality of openings formed therethrough, the present invention is not limited thereto.

As shown in fig. 4, the rotation shaft 4 protrudes from the second region 12 of the main body 2. The rotation shaft 4 of the present embodiment is provided in the second region 12 located between the two first regions 11. The rotation shaft 4 is formed separately from the main body 2, for example, and can be fixed to the main body 2 by press fitting or the like. The rotation shaft 4 of the present embodiment is formed integrally with the main body 2. Specifically, the rotation shaft 4 is integrally formed with the plate-like member 13 of the main body 2.

The rotation shaft 4 may be formed in a columnar or cylindrical shape centered on an axis O orthogonal to the second region 12 of the main body 2. The rotation shaft 4 may be formed in a polygonal column shape or a cylindrical shape, for example, when viewed from the axis O direction, or may be formed in a cylindrical shape. The rotation shaft 4 of the present embodiment is formed in a cylindrical shape. A female screw 31 is formed on the inner periphery of the rotary shaft 4 (see fig. 9A, 9B, and 10). When the rotation shaft 4 is formed separately from the body 2, the rotation shaft 4 may be, for example, a cylindrical nut.

The flange portion 5 is provided at the tip 32 in the protruding direction of the rotating shaft portion 4. The flange portion 5 protrudes outward from the rotation shaft portion 4 in the radial direction of the rotation shaft portion 4. The flange portion 5 may be integrally formed with the rotation shaft portion 4, for example. The flange portion 5 of the present embodiment is detachably provided to the rotation shaft portion 4. The specific configuration of the flange portion 5 may be arbitrary. The flange portion 5 of the present embodiment is a flat washer 35 of the screw 7 with a washer which is engaged with the female screw 31 of the rotary shaft portion 4.

The platen 6 is configured to hold the cover 3 disposed in the first region 11 of the main body 2 on the main body 2. As shown in fig. 4 to 7, the platen 6 includes a plate body 41 and a spring portion 42.

The plate body 41 is formed in a plate shape and is disposed so as to be in surface contact with at least the second region 12 of the body 2. In the present embodiment, the second region 12 of the main body 2 is formed flat, and therefore the plate main body 41 is also formed flat. The plate body 41 is formed with an insertion hole 43 through which the rotation shaft 4 is inserted. The insertion hole 43 penetrates in the plate thickness direction of the plate body 41.

Fig. 5 is a perspective view showing a platen according to an embodiment. Fig. 6 is a plan view showing a platen according to an embodiment.

As shown in fig. 5 and 6, a guide 44 is formed on the periphery of the insertion hole 43. The guide 44 is formed in an arc shape corresponding to the outer periphery of the rotation shaft 4 formed in a circular shape. The plurality of guides 44 are arranged with a space in the circumferential direction of the insertion hole 43. The number of guides 44 may be three or more, for example, but in the present embodiment, two guides are provided. The two guides 44 are arranged to face each other in the radial direction of the insertion hole 43. Thus, the pressure plate 6 can rotate about the axis O of the rotation shaft 4 in a state where the rotation shaft 4 is inserted into the insertion hole 43 of the plate body 41.

The platen 6 is capable of rotating about the rotary shaft 4 between a first rotational position P1 shown in fig. 1, 2, and 4 and a second rotational position P2 shown in fig. 3. At the first rotation position P1, the plate body 41 presses the cover 3 disposed in the second region 12 of the body 2 by the elastic force of the spring portion 42 described later. At the second rotation position P2, the plate main body 41 does not press the cover 3.

As shown in fig. 2 to 6, the plate body 41 is formed in a band plate shape in which a formation portion 45 where the insertion hole 43 is formed and a pressing portion 46 that presses the cover 3 disposed in the second region 12 are aligned in one direction. In the present embodiment, the pressing portions 46 are located on both sides of the forming portion 45 in one direction. As shown in fig. 2 to 4, the formation portion 45 of the plate main body 41 is located on the second region 12 of the main body 2 regardless of the rotational position (P1, P2) of the platen 6. The pressing portion 46 of the plate body 41 is located on the cover 3 (on the first region 11 of the main body 2) in a state where the pressure plate 6 is disposed at the first rotational position P1, and is located on the second region 12 of the main body 2 in a state where the pressure plate 6 is disposed at the second rotational position P2.

Fig. 7 is a sectional view taken along line VII-VII in a plan view of the platen shown in fig. 6. Fig. 8 is a sectional view taken along line VIII-VIII in a plan view of the platen shown in fig. 6.

As shown in fig. 4 to 7, the spring portion 42 is provided at a peripheral portion of an insertion hole 43 provided in the second region 12 of the main body 2. The spring portion 42 is elastically deformed by being sandwiched between the plate main body 41 and the flat gasket 35 (flange portion 5). Thereby, the spring portion 42 presses the plate body 41 toward the second region 12 of the body 2 by its own elastic force. The elastic force of the spring portion 42 that presses the plate main body 41 against the main body 2 does not change regardless of the rotational position (P1, P2) of the pressure plate 6.

Fig. 9 to 11 are cross-sectional views showing a process of attaching the pressure plate to the main body in the cover holding structure according to the embodiment.

The spring portion 42 of the present embodiment is integrally formed with the plate main body 41. The spring portion 42 has a first plate spring portion 47 and a second plate spring portion 48.

The first plate spring portion 47 is integrally formed with the plate main body 41. As shown in fig. 9A, 9B, and 10, the first plate spring portion 47 is pressed against the rotation shaft portion 4 by inserting the rotation shaft portion 4 through the insertion hole 43 of the plate main body 41, and elastically deforms in a plate thickness direction of the plate main body 41 so as to be separated from the surface (second region 12) of the main body 2 with respect to the plate main body 41.

As shown in fig. 4 to 7, the second plate spring portion 48 is integrally formed at the tip end of the first plate spring portion 47. As shown in fig. 11, the flat washer 35 (flange portion 5) is attached to the front end 32 of the rotary shaft portion 4, whereby the second plate spring portion 48 is sandwiched between the flat washer 35 and the first plate spring portion 47, and elastically deforms and flexes with respect to the first plate spring portion 47.

Hereinafter, the spring portion 42 of the present embodiment will be described more specifically.

As shown in fig. 5 and 6, the first plate spring portion 47 of the present embodiment is formed between two slits 49 extending outward of the insertion hole 43 from the peripheral edge of the insertion hole 43 of the plate body 41 in parallel with each other. The first plate spring portion 47 is formed in a band plate shape extending toward the insertion hole 43 with the leading ends of the two slits 49 in the extending direction as starting points. Thereby, the first plate spring portion 47 can be elastically deformed in the plate thickness direction with respect to the plate main body 41.

When the plate body 41 is viewed in a plan view from the plate thickness direction of the plate body 41, the tip end portion of the first plate spring portion 47 in the extending direction overlaps the rotation shaft portion 4 inserted through the insertion hole 43. That is, the front end portion of the first plate spring portion 47 is located radially inside the insertion hole 43. As a result, when the rotation shaft portion 4 is inserted into the insertion hole 43 of the plate main body 41 as shown in fig. 10, the tip end portion of the first plate spring portion 47 is pressed against the rotation shaft portion 4, and can be elastically deformed in a bending manner with respect to the plate main body 41 so as to be separated from the surface of the main body 2 in the plate thickness direction of the plate main body 41. In a state where the rotation shaft 4 is inserted into the insertion hole 43 of the plate body 41, the tip end of the first plate spring portion 47 in the extending direction preferably contacts the outer peripheral surface of the rotation shaft 4 as illustrated in fig. 10.

As shown in fig. 5 to 7, the second plate spring portion 48 of the present embodiment is formed by being folded back with respect to the first plate spring portion 47 at the tip end of the first plate spring portion 47. The second plate spring portion 48 is folded back toward the opposite side surface 51, and the opposite side surface 51 faces the opposite side of the opposite surface 50 of the plate main body 41 facing the second region 12 of the main body 2. The angle of the second plate spring portion 48 folded back with respect to the first plate spring portion 47 may be 90 degrees or more and less than 180 degrees. In this state, the second plate spring portion 48 is elastically deformable in a bending manner with respect to the first plate spring portion 47.

As shown in fig. 10, the tip of the second plate spring portion 48 is preferably located higher than the tip 32 of the rotation shaft portion 4 in the protruding direction of the rotation shaft portion 4 in a state where the rotation shaft portion 4 is inserted into the insertion hole 43 of the plate body 41. Thus, as shown in fig. 11, the following can be achieved by attaching the flat washer 35 (flange 5) of the screw with washer 7 to the tip 32 of the rotating shaft 4. That is, the second plate spring portion 48 is sandwiched between the first plate spring portion 47 and the flat washer 35, and thereby the second plate spring portion 48 can be elastically deformed in a flexible manner with respect to the first plate spring portion 47.

As shown in fig. 5 and 6, the plurality of spring portions 42 of the present embodiment configured as described above are arranged at equal intervals in the circumferential direction of the insertion hole 43. The number of the spring portions 42 may be, for example, three or more, but in the present embodiment, two. The two spring portions 42 are respectively located between the circumferentially adjacent guides 44, and are opposed to each other in the radial direction of the insertion hole 43. In the present embodiment, the two spring portions 42 are arranged along the longitudinal direction (one direction) of the plate body 41 formed in a band plate shape.

As shown in fig. 5 to 8, the platen 6 of the present embodiment further includes a pair of extension plate portions 52. The pair of extension plate portions 52 are integrally formed at both ends in the width direction of the plate main body 41 formed in a band plate shape. The width direction of the plate main body 41 is a direction orthogonal to the plate thickness direction and the longitudinal direction (one direction) of the plate main body 41. The pair of extension plate portions 52 extend in a direction away from the surface of the main body 2 in the plate thickness direction of the plate main body 41. The direction of separation from the surface of the main body 2 is a direction of separation from the opposite side surface 51 of the plate main body 41 in the plate thickness direction of the plate main body 41. In the illustrated example, each extension plate portion 52 is orthogonal to the plate main body 41, but is not limited thereto. The extension plate portion 52 can be formed by bending the plate material constituting the platen 6.

In the present embodiment, the front end portion of each extension plate portion 52 in the extension direction is folded back toward the inside of the plate main body 41 in the width direction. The folded-back portion 53 of the extension plate portion 52 is preferably formed on the entire extension plate portion 52 in the longitudinal direction of the plate main body 41, for example. In the present embodiment, the folded-back portions 53 of the extension plate portions 52 are formed only in the middle portions of the extension plate portions 52 in the longitudinal direction of the plate main body 41, and are not formed at both end portions of the extension plate portions 52.

As shown in fig. 7, both ends of the extension plate portion 52 are chamfered by cutting corners 56 of a side 54 at the front end in the extension direction of the plate main body 41 extending in the longitudinal direction of the plate main body 41 and a side 55 at both ends of the extension plate portion 52 extending in the extension direction of the extension plate portion 52 at both ends in the longitudinal direction of the plate main body 41. That is, both ends of the extension plate portion 52 are formed so that the dimension of the extension plate portion 52 in the extension direction decreases from the folded portion 53 of the extension plate portion 52 toward both ends of the extension plate portion 52 in the longitudinal direction of the plate main body 41.

The platen 6 of the present embodiment configured as described above can be manufactured by appropriately performing cutting, pressing, bending, and the like on a plate material having elasticity, such as a metal plate.

Next, a cover holding method of the present embodiment will be described. The cover holding method is a method of pressing the cover 3 covering the first region 11 in the surface of the main body 2 by the pressing plate 6. In the cover holding method, the platen 6 is first attached to the main body 2.

When the pressure plate 6 is attached to the main body 2, first, as shown in fig. 9A, 9B, and 10, the rotation shaft portion 4 is inserted into the insertion hole 43 of the plate main body 41, and the plate main body 41 is arranged so as to be in surface contact with the second region 12 of the main body 2. When the rotation shaft portion 4 is inserted into the insertion hole 43 of the plate main body 41, the tip end portion of the first plate spring portion 47 of the spring portion 42 is pressed against the rotation shaft portion 4, and elastically deforms in a plate thickness direction of the plate main body 41 so as to be separated from the second region 12 of the main body 2 with respect to the plate main body 41. In this state, the tip of the first plate spring portion 47 contacts the outer peripheral surface of the rotation shaft portion 4. Further, the tip of the second plate spring portion 48 of the spring portion 42 is located higher than the tip 32 of the turning shaft portion 4 in the protruding direction of the turning shaft portion 4.

When the rotation shaft 4 is inserted into the insertion hole 43 of the plate body 41, the entire guide 44 of the insertion hole 43 comes into contact with the outer peripheral surface of the rotation shaft 4 (see fig. 6). The spring portion 42 is provided so as to sandwich the rotation shaft portion 4 in the radial direction. Therefore, the pressure plate 6 is not positionally displaced with respect to the rotation shaft 4 by the elastic force of the first plate spring portion 47 that is subjected to the flexural deformation.

Next, as shown in fig. 11, the spring portion 42 of the pressure plate 6 is sandwiched between the plate body 41 and the flat washer 35 (flange portion 5) of the screw 7 with washer. Specifically, the screw 7 with a washer is engaged with the female screw 31 of the rotary shaft 4 from the tip 32 side of the rotary shaft 4, and the flat washer 35 (flange 5) is brought close to the second region 12 of the body 2. Thereby, the spring portion 42 is sandwiched between the plate body 41 and the flat gasket 35 (flange portion 5). At this time, the second plate spring portion 48 is elastically deformed in a flexible manner with respect to the first plate spring portion 47.

Then, the plate body 41 is pressed toward the second region 12 of the body 2 by the elastic force of the first plate spring portion 47 and the second plate spring portion 48 which are bent and deformed as described above, that is, the elastic force of the spring portion 42 sandwiched between the plate body 41 and the flat gasket 35 (flange portion 5).

By the above, the mounting of the platen 6 with respect to the main body 2 is completed.

In the cover holding method of the present embodiment, as shown in fig. 2 and 4, when the cover 3 is pressed by the presser 6, the presser 6 may be rotated about the rotation shaft 4 to be disposed at the first rotation position P1. In a state where the pressure plate 6 is disposed at the first rotation position P1, the pressing portion 46 of the plate main body 41 is positioned on the cover 3 (on the first region 11 of the main body 2). Therefore, the plate body 41 can press the cover 3 toward the surface of the body 2 by the elastic force of the spring portion 42.

On the other hand, as shown in fig. 3, the platen 6 may be rotated and disposed at the second rotational position P2 without pressing the cover 3 with the platen 6. In this state, the entire plate body 41 (particularly, the pressing portion 46) is positioned on the second region 12 of the body 2. In this state, the cover 3 can be attached to and detached from the main body 2.

As described above, the cover holding method of the present embodiment is completed.

As described above, according to the cap holding structure 1 and the cap holding method of the present embodiment, the plate body 41 of the pressure plate 6 presses the cap 3 against the surface of the main body 2 by the elastic force of the spring portion 42 interposed between the peripheral edge portion of the insertion hole 43 of the plate body 41 and the flat washer 35 (flange portion 5) of the screw with washer 7, and the cap 3 can be held by the main body 2. Therefore, the pressing plate 6 does not need to be formed with a convex portion. As a result, even if the platen 6 is rotated, damage or deformation of the main body 2 or the cover 3 can be suppressed or prevented.

In the present embodiment, the spring portion 42 presses the plate body 41 against the second region 12 of the body 2. Therefore, the shape of the spring portion 42 can be prevented from being changed regardless of the rotational position of the platen 6. Further, it is possible to suppress the shape of the plate body 41 from being changed (e.g., flexural deformation) according to the rotational position of the platen 6. In particular, in the cover holding structure 1 of the present embodiment, the surface (second region 12) of the main body 2 and the surface 21 of the cover 3 are flush with each other in a state where the cover 3 covers the first region 11 of the main body 2. Therefore, the shape of the plate body 41 can be prevented from being changed according to the rotational position of the platen 6. This can suppress or prevent plastic deformation of the plate body 41 and the spring portion 42. Therefore, even if the rotational movement of the platen 6 is repeated between the first rotational position P1 and the second rotational position P2, the cover 3 can be held well on the main body 2.

In the present embodiment, the spring portion 42 is configured to press the plate body 41 against the second region 12 of the body 2. Therefore, the number of components of the cover holding structure 1 can be reduced as compared with the case where the plate body 41 is sandwiched between the second region 12 of the body 2 and the flat washer 35 of the screw with washer 7. This point will be specifically explained below.

When the plate body 41 is sandwiched between the second region 12 of the body 2 and the flat washer 35 of the screw with washer 7, the frictional resistance between the body 2 and the platen 6 increases with the rotational movement of the platen 6. Therefore, it is necessary to reduce the frictional resistance between the main body 2 and the platen 6 by sandwiching a member having high slidability between the main body 2 and the platen 6.

In contrast, in the configuration in which the plate body 41 is pressed against the second region 12 of the body 2 by the elastic force of the spring portion 42 as in the present embodiment, the frictional resistance between the body 2 and the platen 6 associated with the rotational movement of the platen 6 can be suppressed to be small by adjusting the elastic force of the spring portion 42. This eliminates the need to dispose a member having high slidability between the main body 2 and the platen 6. That is, the number of components of the cover holding structure 1 can be reduced.

In addition, according to the present embodiment, it is not necessary to form the convex portion on the platen 6 as described above. Therefore, the cover holding structure 1 can be adopted as a product only by adjusting the elastic force of the spring portion 42 so as to be able to press the cover 3 with an appropriate force. This can reduce the time and cost of development required until the cover holding structure 1 is adopted as a product.

In the cover holding structure 1 of the present embodiment, the spring portion 42 that presses the plate body 41 against the second region 12 of the body 2 is sandwiched between the plate body 41 and the flat gasket 35 (flange portion 5). Therefore, the elastic force of the spring portion 42 that presses the plate body 41 against the body 2 can be easily adjusted. For example, the elastic force of the spring portion 42 can be adjusted by merely changing the distance between the plate body 41 and the flat gasket 35 (flange portion 5). The elastic force of the spring portion 42 can be adjusted only by changing at least one of the plate thickness and material of the pressure plate 6, the number of the spring portions 42, the length and width of the first plate spring portion 47 and the second plate spring portion 48, and the folding angle of the second plate spring portion 48 with respect to the first plate spring portion 47. The elastic force of the spring portion 42 can be adjusted by merely changing the outer diameter and height of the rotation shaft portion 4.

In the cover holding structure 1 of the present embodiment, the spring portion 42 for pressing the plate body 41 against the second region 12 of the body 2 is integrally formed in the plate body 41. Therefore, the number of components of the cover holding structure 1 can be further reduced as compared with a case where the spring portion 42 and the plate body 41 are separately formed.

In the cover holding structure 1 of the present embodiment, the spring portion 42 integrally formed with the plate body 41 includes a first plate spring portion 47 integrally formed with the plate body 41 and a second plate spring portion 48 integrally formed at the tip of the first plate spring portion 47. Therefore, the platen 6 in which the spring portion 42 is integrally formed with the plate body 41 can be easily manufactured by performing machining such as cutting, pressing, and bending on one plate material.

In the cover holding structure 1 of the present embodiment, a plurality of spring portions 42 integrally formed with the plate body 41 are arranged at equal intervals in the circumferential direction of the insertion hole 43. Therefore, the plate body 41 can be pressed uniformly against the second region 12 of the body 2 in the circumferential direction of the insertion hole 43 by the elastic force of the plurality of spring portions 42. This enables the cover 3 to be stably held on the surface of the main body 2.

Further, since the cover holding structure 1 includes the plurality of spring portions 42, even if the elastic force of each spring portion 42 is small, the elastic force (strength) of the spring portion 42 pressing the plate body 41 against the surface of the body 2 can be ensured.

Further, according to the cover holding structure 1 of the present embodiment, the rigidity of the plate body 41 is improved by the pair of extension plate portions 52 integrally formed at both end portions in the width direction of the plate body 41 formed in the band plate shape, and the plate body 41 can be effectively restrained from being warped and deformed. For example, in a state where the platen 6 is disposed at the first rotation position P1 where the cover 3 is pressed, even if vibration or the like is applied to a product including a holding structure of the cover 3 to press the cover 3 against the platen 6, the occurrence of flexural deformation of the plate main body 41 can be suppressed. Further, it is assumed that the front surface 21 of the cover 3 is located at a position higher than the second region 12 of the main body 2, and thus the pressing portion 46 of the plate main body 41 may be lifted by the cover 3 in a state where the platen 6 is disposed at the first rotation position P1 where the cover 3 is pressed. Even in this case, the flexural deformation of the plate body 41 can be suppressed. By suppressing the flexural deformation of the plate body 41, the cover 3 can be favorably held by the body 2.

Further, since the platen 6 includes the extension plate portion 52, the platen 6 can be easily grasped by the fingers of the operator. That is, the operator can easily operate the platen 6.

In addition, according to the cap holding structure 1 of the present embodiment, the spring portion 42 is provided in the peripheral portion of the insertion hole 43 in the plate main body 41. Therefore, even if the rigidity of the plate main body 41 is reinforced by the pair of extension plate portions 52, the reinforcement does not affect the elastic force of the spring portion 42. That is, both the rigidity of the plate body 41 and the elastic force of the spring portion 42 can be ensured.

In addition, in the cover holding structure 1 of the present embodiment, the front end portion of the extension plate portion 52 is folded back toward the inside of the plate main body 41 in the width direction of the plate main body 41. Therefore, the substantial front end of the extension plate portion 52 can have the rounded corner 57 (see fig. 8). In the cover holding structure 1 of the present embodiment, corner portions 56 (see fig. 7) at both ends of the extension plate portion 52 in the longitudinal direction of the plate body 41 are cut by chamfering. This can prevent the fingers of the operator from being injured when touching the extension plate 52.

Although the display device and the method for protecting electronic components according to the present invention have been described in the above embodiments, the present invention is not limited to the above embodiments, and can be modified as appropriate without departing from the scope of the invention.

In the present invention, the flange portion 5 may be, for example, a head portion of a screw that engages with the female screw 31 of the rotating shaft portion 4, or may be a flat washer that is sandwiched between the head portion of the screw and the tip 32 of the rotating shaft portion 4. The flange portion 5 may be fixed to the tip 32 of the rotary shaft portion 4 in a non-detachable manner as shown in fig. 12, for example, or may be formed integrally with the tip 32 of the rotary shaft portion 4, for example.

Fig. 12 is an enlarged sectional view showing a cover holding structure according to another embodiment.

In the present invention, the spring portion 42 may be formed separately from the plate body 41 as shown in fig. 12, for example, and fixed to a peripheral portion of the insertion hole 43 in the plate body 41. The spring portion 42 may be formed in a cylindrical shape surrounding the rotation shaft portion 4 as shown in fig. 12, for example.

In the present invention, the surface 21 of the cover 3 facing outward in a state where the cover 3 covers the first region 11 of the main body 2 may be located higher than the second region 12 of the main body 2, for example. In this case, the pressing portion 46 of the plate main body 41 that overlaps the front surface 21 of the cover 3 in the state where the platen 6 is disposed at the first rotation position P1 may be located at a position higher than the formation portion 45 of the plate main body 41 that overlaps the second region 12 of the main body 2, for example.

The application claims priority based on application Japanese application laid-open No. 2018-111303 to the date 11/6/2018, the disclosure of which is hereby incorporated by reference in its entirety.

Industrial applicability

Further, since the spring portion presses the plate main body against the second region of the main body, the shape of the spring portion can be prevented from changing regardless of the rotational position of the pressure plate. In addition, it is possible to suppress the shape of the plate main body from changing (for example, flexural deformation) according to the rotational position of the pressure plate.

Claims

1. A cover holding structure is provided with:

a main body;

a cover covering a first area in a surface of the body;

a rotation shaft portion protruding from a second region in the surface of the body;

a flange portion provided at a front end of the rotation shaft portion in a protruding direction and protruding outward from the rotation shaft portion in a radial direction; and

a pressing plate having a plate body that is arranged to be in surface contact with at least the second region and has an insertion hole through which the rotation shaft portion is inserted, and a spring portion that is provided at a peripheral portion of the insertion hole and elastically deforms by being sandwiched between the plate body and the flange portion to press the plate body toward the second region,

the pressing plate is capable of rotating about the rotation shaft between a first rotation position where the plate body presses the cover against the surface of the body by the elastic force of the spring portion and a second rotation position where the plate body does not press the cover,

it is characterized in that the preparation method is characterized in that,

the spring portion is integrally formed with the plate main body.

2. The mask holding configuration according to claim 1,

the flange portion is detachably fixed to the rotating shaft portion,

the spring portion includes:

a first plate spring portion that is pressed by the rotation shaft portion by inserting the rotation shaft portion through the insertion hole and elastically deforms in a plate thickness direction of the plate main body so as to be separated from a surface of the main body; and

and a second plate spring portion integrally formed at a tip end of the first plate spring portion, the second plate spring portion being sandwiched between the flange portion and the first plate spring portion and elastically deformed in a flexural manner with respect to the first plate spring portion by attaching the flange portion to the rotation shaft portion.

3. The mask holding configuration according to claim 2,

the plurality of spring portions are arranged at equal intervals in the circumferential direction of the insertion hole.

4. The cap retaining structure according to any one of claims 1 to 3,

the plate main body is formed in a band plate shape in which the formation portion of the insertion hole and the pressing portion pressing the cover are arranged in one direction,

the platen further includes a pair of extension plate portions integrally formed on the platen at both end portions in the width direction of the plate main body and extending in a direction separating from the surface of the main body in the plate thickness direction of the plate main body.

5. The mask holding configuration according to claim 4,

a front end portion of the extension plate portion in the extension direction is folded back toward an inner side of the plate main body in the width direction.