JPH08101282A - Cover fixing structure - Google Patents

Abstract

PURPOSE: To obtain a cover fixing structure in which a cover fixed to the case body can be removed easily. CONSTITUTION: A battery cover 2 having arcuate cross-section is fixed, slidingly in the direction perpendicular to the arc, to the opening part 4 at the battery containing part 3 of a case body 1. The battery cover 2 is provided, on the opposite side of the arc, with inclining faces 10 for forming a gap (s) increasing toward the inside of the case body 1 between the side face 4a of the opening 4 and the side face of the battery cover 2. When the battery cover 2 is depressed, the battery cover 2 is bent easily by an amount corresponding to the gap (s) with respect to the side face 4a of the opening 4 and since the inclining face 10 of the battery cover 2 is not pressed strongly against the side face 4a at the opening 4, the battery cover 2 can be slid smoothly and removed easily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a lid such as a battery lid.

[0002]

2. Description of the Related Art Conventionally, there is an electronic device such as an electronic timepiece in which a case body 1 is formed in a substantially cylindrical shape as shown in FIG. A battery lid 2 having an arc-shaped cross section is detachably attached to the back side (upper surface side in the figure) of the case body 1 according to the shape of the case body 1.
As shown in FIG. 7, the battery lid 2 has parallel surfaces in which both side surfaces 2a in the arc direction are in parallel contact with both side surfaces 4a of the opening 4 of the battery housing portion 3 provided in the case body 1. And the side surfaces 2a of the battery lid 2 are formed on the side surfaces 4a of the opening 4.
The structure is such that it slides in the direction orthogonal to the arc direction while being in contact with. Further, a locking piece 5 that is locked to the edge of the opening 4 of the case body 1 when the battery lid 2 is mounted is attached to the tip portion (the end portion in the sliding direction when mounted) 2b of the battery lid 2. Is provided. When the vicinity of the locking piece 5 is pressed, the battery lid 2 bends as shown by the dotted line in FIG. 7, whereby the locking of the edge of the opening 4 by the locking piece 5 is released. It can be removed from the opening 4 by sliding.

[0003]

In such a battery lid 2 mounting structure, both end surfaces 2a of the battery lid 2 in the arc direction are formed in parallel planes which are in contact with both side surfaces 4a of the opening 4 in parallel with each other. Therefore, as shown by the solid line in FIG.
When the battery is attached to the opening 4, both side surfaces 2a of the battery lid 2
Will be in close contact with both side surfaces 4a of the opening 4. Therefore, even if the vicinity of the locking piece 5 of the battery lid 2 is pressed to release the locking by the locking piece 5, the battery lid 2 is difficult to bend and the locking by the locking piece 5 can be easily released. However, since both side surfaces 2a of the battery lid 2 are pressed against the both side surfaces 4a of the opening 4, it becomes difficult for the battery lid 2 to slide smoothly, and the battery lid 2 cannot be easily removed. . An object of the present invention is to provide a lid mounting structure capable of easily removing the lid mounted on the case body.

[0004]

In order to achieve the above object, the present invention has a lid mounting structure which is formed in an arcuate cross section and is slidably mounted in an opening of a case body in a direction orthogonal to the arcuate direction. In addition, sloped surfaces for forming a gap that widens toward the inside of the case body between the side surface of the opening and the side surface of the lid are formed on both side surfaces of the lid in the arc direction. It is what In this case, as described in claim 2, a locking piece that is locked to the case body is formed at an end portion of the lid in the sliding direction, and sloped surfaces are formed on both side surfaces of the lid on the locking piece side in the arc direction. It is preferable that parallel surfaces are formed on both side surfaces of the lid in the arc direction on the side opposite to the locking piece and that are parallel to the side surfaces of the opening. Further, as described in claim 3, it is preferable that the lid on the locking piece side of the parallel surface is formed with ribs along the arc direction.

[0005]

According to the present invention, the slopes formed on both side surfaces of the lid in the arc direction form a gap between the side surface of the opening and the side surface of the lid, which becomes wider toward the inside of the case body. Therefore, when the lid is pressed, the lid is easily bent by the amount of the gap between the both side surfaces of the opening and the both side surfaces of the lid, and the side surface of the lid is not strongly pressed against the side surface of the opening. , The lid can be slid smoothly, so that the lid can be easily removed. In this case, as described in claim 2, a locking piece that is locked to the case body is formed at an end portion of the lid in the sliding direction, and sloped surfaces are formed on both side surfaces of the lid on the locking piece side in the arc direction. If a parallel surface that is parallel to the side surface of the opening is formed on both sides of the lid in the arc direction on the side opposite to the locking piece, the locking piece side of the lid easily bends, but the locking The side opposite to the piece is hard to bend, so even if the lid on the side opposite to the locking piece is pressed, the locking by the locking piece is not released and it is possible to prevent the lid from coming off without permission. it can. Further, as described in claim 3, if the lid is formed along the arc direction on the lid on the side of the locking piece with respect to the parallel surface, the bending strength of the lid can be increased and the lid is excellent in durability. can get.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a lid mounting structure according to the present invention will be described below with reference to FIGS. The same parts as those in the conventional example shown in FIGS. 6 and 7 are designated by the same reference numerals, and the description thereof will be appropriately omitted. As shown in FIG. 1, the tip 2b of the battery lid 2 having an arcuate cross-section slidably attached to the opening 4 of the case body 1 has a rear side of the opening 4 of the case body 1 when the battery lid 2 is attached. A locking piece 5 that is locked to the edge portion (left edge portion in the figure) 4b is provided. The rear end portion 2c of the battery lid 2 has an arc plate-shaped engaging portion 6 that engages with a front edge portion (right edge portion in the figure) 4c of the opening 4 of the case body 1 when the battery lid 2 is attached. Is provided.

On both sides of the battery lid 2 in the arc direction on the side of the locking piece 5, between the side surface 4a of the opening 4 and the side surface of the battery lid 2 as shown in FIGS. 2 and 5 (a). The slope 10 for forming a gap s that gradually widens toward the inside of the battery storage portion 3 is provided at the tip on the locking piece 5 side from the substantially middle portion in the sliding direction as shown in FIGS. 3 (a) and 4. It is formed over the portion 2b. Further, on both side surfaces in the arc direction of the battery lid 2 on the side opposite to the locking piece 5, there are parallel surfaces 11 that are in parallel contact with the side surface 4a of the opening 4 as shown in FIG. 5B. As shown in FIGS. 3A and 4, it is formed from the substantially middle portion in the sliding direction to the engaging portion 6. Further, a reinforcing rib 12 is formed on the inner surface of the battery lid 2 on the locking piece 5 side of the parallel surface 11, that is, on the inner surface of the battery lid 2 on the slope 10 side of the boundary portion between the parallel surface 1 and the slope 10. It is formed along the direction.

On both sides of the tip portion 2b of the battery lid 2,
Positioning protrusions 13 are provided to position the battery lid 2 by being removably inserted into insertion holes (not shown) formed in the inner edge 4b of the opening 4. Further, the engaging portion 6 of the rear end portion 2c of the battery lid 2 is releasably engaged with an engaging hole (not shown) formed in the front edge portion 4c of the opening portion 4 to engage the battery lid 2 with the engaging portion 6. Is provided with an engagement projection 14 for positioning. Further, an uneven portion 15 for preventing slippage is provided on the outer surface of the battery lid 2 in the vicinity of the locking piece 5.

In such a battery lid 2, both side surfaces 4a of the opening 4 of the case body 1 are slid in correspondence with both side surfaces of the battery lid 2 to open the locking piece 5 at the tip 2b of the battery lid 2. While being locked to the rear side edge 4b of the portion 4, the tip 2b
The insertion protrusion 13 is inserted into the insertion hole of the rear side edge 4b of the opening 4 for positioning, and the engaging portion 6 of the rear end 2c of the battery lid 2 is engaged with the front side edge 4c of the opening 4. And let
The engagement protrusion 14 of the engagement portion 6 is engaged with the engagement hole of the front side edge portion 4c of the opening portion 4 for positioning. Thereby, the battery lid 2
Is attached to the opening 4 of the case body 1. In this state, of the both side surfaces of the battery lid 2, both side surfaces on the locking piece 5 side are arranged in the opening 4 with a gap s between the side surface of the opening 4 and the side surface of the opening 4 due to the slope 10. Both side surfaces on the side opposite to the stopper 5 are arranged in the opening 4 in a state of being in close contact with the side surface of the opening 4 by the parallel surface 11.

When the battery lid 2 is removed from the opening 4 of the case body 1, the outer surface of the battery lid 2 on the side of the locking piece 5, that is, the uneven portion 15 on the outer surface of the battery lid 2 is pressed. At this time, due to the slopes 10 formed on both sides in the arc direction, a gap s is formed between the side surface 4a of the opening 4 and the side surface 4a of the opening 4. When pressed, the locking piece 5 is moved by the gap s.
The battery lid 2 on the side can be easily bent, and the locking of the back side edge 4b of the opening 4 by the locking piece 5 can be easily released. Moreover, even if the battery lid 2 on the side of the locking piece 5 is bent, the slopes 10 on both sides thereof are not strongly pressed against the side surface 4a of the opening 4, so that the battery lid 2 can be slid smoothly. As a result, the battery lid 2 can be easily removed.

Further, in this battery lid 2, both side surfaces in the arc direction of the battery lid 2 on the side opposite to the locking piece 5 are formed as parallel surfaces 11 having a shape corresponding to the side surface 4a of the opening 4 in parallel. Therefore, the battery lid 2 on the side opposite to the locking piece 5 is difficult to bend. Therefore, even if the battery cover 2 in this portion is pressed, the locking by the locking piece 5 is not released, and the battery cover 2 does not come off without permission. Further, since the rib 12 is formed along the arc direction on the inner surface of the battery lid 2 on the locking piece 5 side of the parallel surface 11, the bending strength of the battery lid 2 on the locking piece 5 side is formed by the rib 12. It is possible to obtain a product having excellent durability.

In the above embodiment, the case main body 1 of the electronic device is described as having a substantially cylindrical shape. However, the case body 1 is not limited to this and may have a spherical shape. Further, in the above embodiment, the battery cover 2 of the electronic device such as the electronic timepiece is described, but the present invention is not limited to this, and can be applied as a cover of a storage portion for components such as a memory pack (external storage means).

[0013]

As described above, according to the present invention, due to the slopes formed on both side surfaces of the lid in the arc direction, the distance between the side surface of the opening and the side surface of the lid increases toward the inside of the case body. Since the widening gap is formed, when the lid is pressed, the lid easily bends by the gap between the side surface of the opening and the side surface of the lid, and the side surface of the lid is strong against the side surface of the opening. Since the lid is not pressed, the lid can be slid smoothly and thus the lid can be easily removed.

[Brief description of drawings]

FIG. 1 is a sectional view taken along the sliding direction of an embodiment in which the present invention is applied to a battery lid mounting structure.

FIG. 2 is an enlarged sectional view taken along line AA of FIG.

3 is a side view of the battery cover of FIG. 1, FIG.
(B) is the top view.

FIG. 4 is a rear view of the battery lid shown in FIG. 3 (b).

FIG. 5 shows a cross section of the battery lid, (a) being B of FIG. 3 (b).
-B sectional drawing, (b) is CC sectional drawing of FIG.3 (b).

FIG. 6 is an external perspective view showing a conventional battery lid mounting structure.

7 is an enlarged sectional view taken along line DD of FIG.

[Explanation of symbols]

 1 Case Main Body 2 Battery Lid 2a Both Sides of Battery Lid 4 Opening 4a Both Sides of Opening 5 Locking Piece 10 Slope 11 Parallel Surface 12 Rib s Gap

Claims (3)

[Claims] 1. A mounting structure of a lid which is formed in an arc shape in cross section and is slidably mounted in an opening of a case body in a direction orthogonal to the arc direction, wherein both side surfaces of the lid in the arc direction. The mounting structure for the lid, wherein a sloped surface is formed between the side surface of the opening and the side surface of the lid to form a gap that widens toward the inside of the case body. 2. A locking piece that is locked to the case body is formed at an end portion of the lid in the sliding direction, and the inclined surface is provided on both side surfaces of the lid on the locking piece side in the arc direction. And a parallel surface that is parallel to the side surface of the opening is formed on both side surfaces of the lid on the side opposite to the locking piece in the arc direction. The lid mounting structure described in 1. 3. The lid mounting structure according to claim 2, wherein a rib is formed along the arc direction on the lid on the locking piece side with respect to the parallel surface.