JPH0247823B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a battery cover retaining device that prevents a battery cover from coming off in a small portable electronic device or the like that houses a battery.

Conventional Structure and Problems Conventionally, in the case of a small portable electronic device that houses a battery, the battery 3 is covered with the engaging part 2 of the case body 1, as shown in FIGS. 1 and 2. battery cover 4
The engaging portion 5 is engaged and attached. A pair of recesses 6 are formed in the engagement part 2 of the case body 1, and a pair of protrusions 7 are provided in the engagement part 5 of the battery cover 4 as shown in FIGS. 2 and 3. 4
When the engaging part 5 of the battery cover 4 is engaged with the engaging part 2 of the case body 1, the engaging part 5 of the battery cover 4 moves forward while forcibly pushing the engaging part 2 of the case body 1 apart. The battery cover 4 is attached to the case body 1 by being elastically engaged with the recess 6 of the battery cover 4 .
At this time, attach the engaging part 2 of the case body 1 to the battery cover 4.
The larger the force of spreading by the protrusion 7, that is,
The larger the protrusion 7 and recess 6 are, the more difficult it is for the battery cover 4 to come off. Further, when removing the battery cover 4, a force sufficient to push apart the engaging portion 2 of the case body 1 by the protrusion 7 of the battery cover 4 is required in the same manner as described above. Since the battery cover 4 is attached to and detached from the case body 1 by operating with fingers, the force for pulling out the battery cover 4 cannot be made very large. That is, the sizes of the protrusion 7 and the recess 6 have their own limitations. Therefore, in the above-mentioned conventional portable electronic device, there is a risk that the battery cover 4 may come off relatively easily and the battery 3 may fly out due to shock if accidentally dropped or due to rough handling. There were flaws.

Purpose of the Invention The present invention eliminates the above-mentioned problems of the conventional example, and can prevent the battery cover from coming off from the case body even if it is subjected to an accidental drop impact or is handled roughly. It is an object of the present invention to provide a battery cover retaining device that allows moderation when attaching and detaching the battery cover to and from a case body.

Structure of the Invention In order to achieve the above object, the present invention includes a recess formed on the negative side of the engaging portion in the case body in a direction perpendicular to the engaging direction of the battery cover, and a recess formed on the negative side of the battery cover. a recess that can communicate with the recess while engaged with the case body, a positioning protrusion formed at the bottom of the recess, facing the middle part, and an enlarged part on both sides. an engagement hole in which is formed, a stopper body movably fitted into the recess of the battery cover, a stopper body protruding from the stopper body,
a pair of elastically deformable legs that are inserted into the engagement hole of the battery cover, and a tip of each leg that protrudes;
It is equipped with a stopper consisting of an engagement claw that engages with the edge of the engagement hole to prevent it from coming out, and by fitting the stopper body across the recess of the battery cover and the recess of the case body, the leg The leg elastically overcomes the positioning protrusion of the engagement hole and is located inside the - side expansion part, and by separating the stopper body from the recess of the case body, the leg part moves over the positioning protrusion of the engagement hole. It is characterized in that it is configured to elastically cross over and be located within the other side expanded portion.

DESCRIPTION OF EMBODIMENTS Hereinafter, one embodiment of the present invention will be described in detail based on the drawings. As shown in FIGS. 4 to 7, a battery 12 is accommodated in a battery accommodating portion of the case body 11. As shown in FIGS. The case body 11 is provided with an engaging portion 13 on the open side of the battery accommodating portion. An engaging portion 15 of the battery cover 14 is slid into engagement with this engaging portion 13 . These engaging parts 13 and 15 may be provided with a recess (not shown) and a protrusion 16 to engage with each other, as in the conventional example, or may not be provided. A notch-shaped recess 17 is formed in the negative side of the case body 11 on the side of the engaging portion 13 in a direction perpendicular to the direction in which the battery cover 14 is engaged. On the negative side of the battery cover 14, there is a recess 17 in the case body 11 with the battery cover 14 engaged with the case body 11.
A recess 18 is formed which can communicate with the
An engagement hole 19 is formed at the bottom of the holder. As shown in FIG. 7B, the engagement hole 19 is formed by a pair of chevron-shaped positioning protrusions 20 with the intermediate portion 26 at the apex. The protrusion 20 has an intermediate portion 26
The opposing distance is the narrowest at the point , and as it moves away from the intermediate portion 26 to both sides (toward the hem of the chevron), the opposing distance gradually (continuously) increases due to the sloped portions 27a and 27b. As a result, wide enlarged portions 28 are formed at both ends of the communication side and the back side. The stopper 21 that prevents the battery cover 14 from coming off from the case body 11 is made of synthetic resin, as is particularly clear from FIG. is provided protrudingly, and each leg portion 23 is formed with an engaging pawl 24 . The surface of the stopper main body 22 is formed with unevenness 25 to facilitate operation. The leg portion 23 of the stopper 21 is inserted into the engagement hole 19 and the engagement claw 24 is engaged with the edge of the engagement hole 19 to prevent the stopper 21 from coming off, and the stopper body 22 is movable into the recess 18. is mated to. Then, press the stopper 21 and move the stopper body 22 between the recess 18 and the case body 1.
By fitting across the recess 17 of 1, the leg 2
3 elastically overcomes the positioning protrusion 20 and is located within the − side expanded portion (see FIGS. 6B and 7B),
By removing the stopper body 22 from the recess 17 and fitting it only into the recess 18, the leg 23 elastically overcomes the positioning protrusion 20 and is positioned within the other side widening part. (Figure 6A,
(See Figure 7B).

Next, the operation of the above embodiment will be explained. Fourth
From the state shown in the figure, the engaging part 1 of the battery cover 14 is attached to the engaging part 13 of the case body 11 as shown in FIG.
5 to make the recess 17 of the case body 11 communicate with the recess 18 of the battery cover 14. Thereafter, the stopper 21 is pressed to elastically deform the leg portion 23, and as shown in FIG. 7B, the leg portion 23 is moved over the positioning protrusion 20 and positioned within the − side expanded portion. At the same time, the stopper body 22 is moved into the recess 1 as shown in FIG. 6B.
8 and 17 can be fitted across. Therefore, the leg portion 23 is positioned by the positioning protrusion 20 and the stopper body 22 is maintained in the fitted state with the recesses 18 and 17, so that the battery cover 14 is prevented from coming off from the case body 11 by the stopper 21. Ru. When the stopper 21 moves, the leg portion 23 elastically rides over the positioning protrusion 20, so that good switching moderation can be provided, which can be confirmed by touch, hearing, etc.

By pressing the stopper 21 in the opposite direction to the above, the leg 23 is elastically deformed and positioned in the expanded portion on the other side beyond the positioning protrusion 20, as shown in FIG. 7A. At the same time, the stopper body 22 is moved to the case body 11 as shown in FIG. 6A.
from the recess 17 of the battery cover 14, and fit only into the recess 18 of the battery cover 14. Therefore, the battery cover 14
By pulling , it can be removed from the case body 11 as shown in FIG.

Effects of the Invention As is clear from the above description, according to the present invention, by engaging the engaging portion of the battery cover with the engaging portion of the case body, a recess is formed in both in a direction perpendicular to the engaging direction. The stopper body of the stopper is fitted into these recesses by straddling the stopper body, and the leg of the stopper is elastically moved over the positioning protrusion of the engagement hole formed at the bottom of the recess on the battery cover side. I'm trying to position it. Therefore, the battery cover can be reliably secured to the case body,
There is no risk that the battery cover will come off even if it is subjected to impact such as being dropped or subjected to rough handling. In addition, as mentioned above, the legs of the stopper elastically move over the positioning protrusions of the engagement hole, so it is possible to control the operation when attaching and detaching the battery cover to the case body. There are advantages such as Furthermore, the positioning protrusion is not a protrusion, but
Since the stopper has a chevron shape and is constructed so that the facing distance changes continuously, the stopper moves smoothly and has the effect of greatly improving the operating feel.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a conventional portable electronic device with the battery cover removed, Fig. 2 is a side view thereof, Fig. 3 is a side view of the battery cover, and Figs. 4 to 7 are in accordance with the present invention. Fig. 4 is a plan view of a portable electronic device equipped with a support device with the battery cover removed, Fig. 5 is a perspective view of the stopper, and Fig. 6A shows an embodiment of the battery cover retaining device. , B are enlarged plan views of essential parts for explaining the operation, and FIGS. 7A and 7B are partially cutaway plan views of the states shown in FIGS. 6A and B, respectively. 11...Case body, 12...Battery, 14...
Battery cover, 17, 18... recess, 19... engaging hole, 20... positioning protrusion, 21... stopper, 22... stopper body, 23... leg, 24
...Engaging claw.

Claims (1)

[Claims] 1. A recess formed on one side of the case body on the engaging portion side in a direction perpendicular to the engaging direction of the battery cover;
A recess formed on one side of the battery cover and capable of communicating with the recess while engaged with the case body; a pair of positioning protrusions whose facing distance increases continuously as they move away from the battery cover in the engagement direction of the battery cover to form a widening part; A stopper body, a pair of elastically deformable legs that protrude from the stopper body and are inserted into the engagement hole of the battery cover, and a pair of elastically deformable legs that protrude from the tip of each leg and engage the edge of the engagement hole. and a stopper consisting of an engaging claw that is fitted together to prevent the stopper from coming out, and by fitting the stopper body across the recess of the battery cover and the recess of the case body, the leg portion is fitted into the engaging hole. The legs elastically move over the positioning protrusion of the engagement hole and are located in the one side expansion part, and the stopper is removed from the recess of the case body, so that the leg elastically moves the positioning protrusion of the engagement hole. A device for preventing a battery cover from coming off, characterized in that the device is configured to be positioned within the expanded portion on the other side by climbing over the battery cover.