JPS591321Y2 - Battery containers for small electrical equipment - Google Patents

Description

[Detailed description of the invention] This invention relates to battery containers for small electric devices such as cylindrical flashlights, and in particular prevents deformation of the node plate attached to the inner wall of the battery container, allowing smooth removal and insertion of batteries. The purpose of the present invention is to provide a battery container made of

Conventionally, in this type of cylindrical flashlight, a long lead plate 51 is attached along the inner wall 53 of the main body case 52 in order to conduct current to the front illumination part 50, as shown in FIG. 1a. , and a conductive contact spring 5 mounted inside the battery cover 54.
Electricity is supplied by contacting a part of 5.

However, since the inner wall 53 of the main body case is generally formed in a straight line along the shape of the battery 56 housed therein, the lead plate 51 is also formed in a straight line.

Therefore, when the battery cover 54 presses the end 51a of the lead plate 51 on the open end side of the main body case 52 (this is done to reduce contact resistance and ensure continuity), the lead plate 51 As shown in Figure 1, the battery 56 is bent toward the battery side, and this state continues until the next battery replacement, so the curved deformation cannot be removed, and the battery 56 is pressed when replacing the battery, that is, taking it out and inserting a new one. This has the drawback that it poses a problem in taking out and putting in the battery 56.

In order to prevent the lead plate 51 from deforming into a curved shape, the present invention includes a sloped wall that expands the rear inner wall of the battery container toward the battery exchange port, and a slope that extends along the axial direction of the battery container following the sloped wall. The node plate attached along the inner wall is fixed at the base point of the inclined wall, and a small gap is left between the inclined part facing the inclined wall and the inclined wall. When the battery is replaced, the battery cover is attached to the main body case and has a conductive coil spring with one end pushing the battery housed in the main case forward and the other end extending to a position corresponding to the battery replacement port. When the device is attached to the mouth, the pressing direction of the other end of the conductive coil spring is made to match the linear direction of the linear portion of the lead plate facing the linear wall.

An embodiment of this invention will be described below with reference to the drawings.

In Fig. 2, reference numeral 1 denotes a battery container of the main body case which has a lighting section (not shown) containing a light bulb in the front, and an inclined wall 3 whose rear inner wall expands toward the battery exchange port 2; It is comprised of a straight wall 4 following the wall 3 and extending along the axial direction of the battery container 1.

Reference numeral 5 denotes a lead plate whose one end side is attached along the rear inner wall of the battery container, and includes an inclined portion 5a facing the inclined wall 3 and an inclined wall 3.
There is a slight gap between the base point a of the inclined wall and
It is fixed in place.

The other end of the lead plate 5 extends to the lighting section via a switch (not shown) attached to the side wall of the main body case.

Reference numeral 6 designates a battery cover that covers the battery exchange port 2, and inside the battery cover, one end presses forward the battery 7 housed in the main body case, and the other end extends to a position corresponding to battery exchange ■2. A coil spring 8 is attached thereto, and is screwed into the battery exchange port 2 so that the attachment direction matches the straight line direction of the straight portion 5b of the lead plate 5 facing the straight wall 4 of the rear inner wall of the battery container. .

The operation of the lead plate 5 of the flashlight having the above structure will be explained.

FIG. 3 shows a diagram of its operation. By attaching the battery cover 6 to the battery exchange port 2, the straight portion 5b of the lead plate 5 is removed.

When pressed with a magnitude of , this force F.

is the inclined portion 5 of the lead plate 5 with the inclined wall base point a as the fixed point.
a is divided into a vertical component F2 and an inclined component F1 toward the inclined wall 3. Therefore, the lead plate 5
is closely aligned further along the inclined wall 3.

The stronger the pressing force of the battery cover 6, the larger the vertical component F2, and the closer the lead plate 5 comes to the rear inner wall.

As described above, according to this invention, a battery container is constructed of an inclined wall 3 that expands toward the battery exchange port 2 and a straight wall 4 that continues from the inclined wall 3 and extends along the axial direction of the battery container 1. Since the lead plate 5 is attached along the rear inner wall, even if the lead plate 5 is installed unevenly, by attaching the battery cover 6, the lead plate 5 will be in close contact with the rear inner wall of the battery container, so that it can be moved inward. is not distorted, and the battery 7 can be taken out and inserted smoothly.

In addition, since the inner wall expands from the fixing point of the lead plate 5 at the base point a of the inclined wall on the rear inner wall of the battery container toward the battery exchange [-12], compared to the case of a conventional straight cylinder, the lead plate 5 is Fixing work such as welding, gluing, caulking, etc. becomes easier.

Furthermore, if the outer wall of the battery container is expanded along with the rear inner wall, it will become wider at the end, making it easier to grip and improving the practical effect.

[Brief explanation of drawings]

Fig. 1 shows a conventional flashlight, where a is a partial sectional view, b is a partially enlarged view, Fig. 2 is a partial sectional view of the rear part of a flashlight implementing the present invention, and Fig. 3 is a partial sectional view of the same implementation. FIG. 6 is an explanatory diagram of the operation of the example lead plate. 1...Battery container, 2...Battery exchange port,
3... Slanted wall, 4... Straight wall, 5...
...Lead plate, 5a...Slanted part, 5b.
...straight line part, D...gap, 6...
...Battery cover, 7...Battery, 8...Conductive coil spring.

Claims (1)

[Scope of utility model registration request] a sloped wall 3 expanding the rear inner wall of the battery container 1 toward the battery exchange port 2;
It is configured in a cylindrical shape consisting of a straight wall 4 along the axial direction of
The lead plate 5 attached along the inner wall is placed at the base point a of the inclined wall.
At the same time, the inclined portion 5a facing the inclined wall 3
and the inclined wall 3 with a slight gap, one end of which pushes the battery 7 housed in the main body case forward, and the other end of which extends to a position corresponding to the battery exchange port 2. When attaching the battery cover 6 having the conductive coil spring 8 to the battery exchange port 2, the direction in which the other end of the conductive coil spring 8 is pressed is aligned with the straight line of the lead plate 5 facing the straight wall 4. part 5b
A battery container for a small electric device, characterized in that the battery container is aligned with the linear direction of the battery container.