JPH0139396Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a dry battery ejection structure for taking out a spare dry battery from a storage part of a device using dry batteries, such as a watch or an electrical device.

(Prior Art) In devices such as watches and radio cassettes that operate on dry cell batteries, a spare dry cell that serves as the operating source is housed in a part of the case of the device.

Conventionally, when removing a stored spare battery, the user had to hook the end of the battery with a nail and remove it upwards, but this had the disadvantage that it was difficult to remove with the nail.

It is also known that a ribbon is placed in the battery compartment, one end is fixed, the other end of the ribbon is pinched and pulled out, and the battery is lifted up and removed. However, when installing a dry cell battery, the other end of the ribbon is sometimes placed under the dry cell battery, which has the disadvantage that the other end of the ribbon is hidden and difficult to remove.

(Purpose of the invention) The present invention solves the above-mentioned drawbacks, and allows the battery to be easily removed by simply pushing the end of the elastic removal piece with your finger and causing the removal piece to remove the stored dry battery outward. The purpose of the present invention is to provide a dry battery ejection structure that allows the battery to be taken out.

(Structure of the invention) In order to achieve the above object, the present invention has a structure in which a part of the lower wall of the dry cell storage section made of a synthetic resin material has the same shape as the lower wall and an axis of the dry cell storage section. A band-shaped elastic extraction piece is integrally provided in a direction perpendicular to the direction, one end of the extraction piece is made a free end, and a protrusion is provided on the inner surface of the free end, and the tip of the protrusion is located in the upper half of the dry cell to be stored. The present invention is characterized in that when the free end is pushed down, it is located in the lower half of the dry cell battery in the dry cell storage section.

(Embodiment) Next, a dry battery ejection structure according to an embodiment of the present invention will be explained with reference to FIGS. 1 to 5. For the sake of explanation, a clock will be described below as an example of a device operated by dry batteries, but the present invention can also be applied to other electric devices such as radio cassettes.

A dry cell storage part 3 is formed on the back surface 2 of a watch case 1. This dry battery storage part 3 is for storing spare dry batteries or dry batteries removed from the movement at the time of shipment.The width of the entrance is slightly wider than the diameter of the dry battery 5, and the lower part of the dry battery storage part 3 has a semi-cylindrical shape. A bottom wall 7 is formed. Battery compartment 3
Both ends in the axial direction are provided with closing walls.

Near the center of the dry cell storage section 3, a U-shaped elastic removal piece 9 is provided which is in the form of a band in a direction perpendicular to the stored dry cell battery and its axis. The ejection piece 9 is integrally molded with the bottom wall 7 from a synthetic resin material forming the dry battery storage part 3, and one end of the ejection piece 9 is connected to the dry battery storage part 3.
It is fixed to the upper part of the side wall, and the other end is formed as a free end. A protrusion 11 bent outward at a right angle is continuously formed at the free end of the extraction piece 9, and a stopper 1 as a part of the case 21 is provided below the protrusion 11.
3 is provided.

A projection 15 having a triangular cross section is provided on the inner surface of the extraction piece 9 near the free end. This protrusion 15 is
The tip is installed at a position higher than the center line of the dry battery 5 in the stored state, that is, in the upper half 5a, and serves to prevent the dry battery 5 in the stored state from coming off. Further, when the protrusion 11 is pushed down and the ejection piece 9 is elastically deformed, the tip of the protrusion 15 is located below the center line of the stored battery 5, that is, at the lower half 5b, so the ejection piece 9 returns to its original state due to its elastic force, and at the same time the protrusion 15 pushes up the dry battery 5.

The dry battery ejection structure of the present invention is constructed as described above. Therefore, when inserting the dry cell battery 5 into the dry cell storage compartment 3, use your finger to move the dry cell battery 5 to the arrow A as shown in FIG.
When pushed in the direction, the protrusion 15 is pushed by the dry battery 5, the free end of the removal piece 9 expands in the lateral direction of arrow B, and the dry battery 5 is inserted up to the bottom wall. Thereafter, the take-out piece 9 returns to its original position due to its elastic force and holds the dry cell battery 5 in the dry cell storage portion 3 so as not to move.

When taking out the dry cell battery 5, as shown in FIG.
The tip hits the lower half 5b from the center line of the dry cell battery 5 in the stored state. After that, when you release your finger, the free end returns to its original position due to elastic force, as shown in Figure 5.
At the same time, the protrusion 15 pushes up the dry battery 5 while supporting the lower half 5b of the dry battery 5.

(Effects of the Invention) As described above, according to the present invention, the dry battery can be removed with a single touch operation of a finger, and the dry battery can always be taken out reliably and easily. In addition, the conventional method of removing batteries with a ribbon required the effort of pasting the ends of the ribbon, but in the case of the present invention, the removal piece can be integrally molded with the battery compartment, which has the advantage of being easy to manufacture. .

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the back of a watch having a dry battery ejection structure according to the present invention. Figure 2 is an enlarged view of the main parts of Figure 1. FIG. 3 is a cross-sectional view showing the operation of the dry battery removal structure. Fourth
The figure is a cross-sectional view showing the operation of the dry battery removal structure. FIG. 5 is a cross-sectional view showing the operation of the dry battery removal structure. 3... Dry cell storage section, 5... Dry battery, 7... Bottom wall, 9... Removal piece, 15... Protrusion.

Claims (1)

[Scope of utility model registration request] A band-shaped elastic ejection piece having the same shape as the low wall and extending in a direction perpendicular to the axial direction of the dry battery storage part is integrally provided on a part of the lower wall of the dry battery storage part made of a synthetic resin material. One end is a free end and a protrusion is provided on the inner surface of the free end, and the tip of the protrusion is located on the upper half of the battery to be stored, and when the free end is pushed down, the lower half of the battery in the battery storage section Dry battery removal structure located in the section.