JP2759390B2 - How to manufacture a strap for connecting the battery ears - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a strap for connecting an electrode plate group of a storage battery such as an alkaline storage battery, and to a strap.

[0002]

2. Description of the Related Art A conventional bent or sealed alkaline storage battery strap has a plurality of slits through which each ear of an anode plate group or a cathode plate group of a plate group is inserted from a steel plate. It is known to manufacture a pole strap by punching it into a rectangular body having a predetermined size and, if necessary, further welding a pole to its upper surface.

[0003]

In the above-mentioned conventional method of manufacturing a strap, the width of the slit is manufactured so as to be suitable for the insertion connection of the ear of a specific electrode plate, and the electrode plate thinner than the slit width. Not suitable for connection. In addition, the width of the slit should be at least the same as the thickness of the strap. If the width is smaller than that, there is an inconvenience that the slit cannot be formed due to the limitation of the punching technique. Therefore, in addition to using the strap manufactured by the above-mentioned conventional manufacturing method as it is,
It is desirable to be able to apply to the ear of the electrode plate smaller than the width of the slit. It is also desirable to be able to manufacture straps with slits smaller than their thickness.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and relates to a method of manufacturing a storage battery strap satisfying the above-mentioned needs. After the manufacture of the strap, the plate surface on the lengthwise extension of each slit of the strap is pressurized, and the plate surface portion within a width corresponding to the width of the slit is bent.

[0005]

The width of the slit is reduced by bending the plate portion of the strap downward. Therefore, apart from using the stamped manufactured strap as it is, through the above-mentioned press working, it can be manufactured into a strap suitable for the ear of the electrode plate having a slit of a predetermined width smaller than the width of each slit. . In addition, a strap having a slit width smaller than the plate thickness can be obtained by the above pressing.

[0006]

An embodiment of the present invention will be described with reference to the accompanying drawings. The present invention relates to a strap having a desired number of slits manufactured by punching from a metal plate such as a steel plate used for both an anode plate group and a cathode plate group of an electrode group of an open or closed type alkaline storage battery. Applies to manufacturing method.

In FIGS. 1 and 2, reference numeral 1 denotes a strap for a group of ears having a specific thickness of a group of plates of a vented cell. According to a conventional manufacturing method, the strap 1 is provided with a plurality of required slits suitable for inserting and connecting an anode plate ear group or a cathode plate ear group of a predetermined electrode plate group, and four slits 2 in the illustrated example.
It was manufactured into rectangular straps of predetermined dimensions having 2, 2, and 2. The strap still has four slits 2, 2,
A set of pole plates, for example, four ears of a cathode plate are inserted through and welded to the pole plates 2, 2, and pole poles are welded to the upper surface thereof to form pole pole straps.

According to the present invention, a new strap is formed by using this strap 1 and further processing the following so as to be suitable for insertion and connection of an electrode plate having ears with thinner ears. Can be manufactured. That is, the plate surface on the extension in the length direction of each of the slits is pressed, and the plate surface portions 3, 3, 3, 3 within the width corresponding to the width of the slit are V-shaped as shown in FIG. performed in fold bending processing downwards, the person <br/> first width of each slit 2,2,2,2 is having slits 2 becomes smaller predetermined width ', 2', 2 ', 2' An inventive strap 1 'is obtained. In the drawing, 4 indicates each bent portion. Each V-shaped bent portion 4 may be formed in an upward bent portion. However, as shown in FIG. 4, when formed in a downward bent portion 4, the pole 5 is welded to the upper surface thereof. Brings convenience that does not disturb the installation work. In addition, the degree of the V-shaped bending of the bent part 4 can be appropriately adjusted, and the desired slit width can be appropriately adjusted.
Also, depending on the width of the plate surface portion 3 , the V-shaped folding
Bend 4 can also be to have a W-shaped soil multiple bent portion having two bent portions.

As is apparent from the above, if necessary, according to the above-mentioned manufacturing method of the present invention, a strap having a slit having the same width as the plate thickness is manufactured by punching, and then subjected to bending by the above-described press. By doing so,
A strap having a slit width smaller than the plate thickness that cannot be obtained by punching can be obtained.

[0010]

When according to the present invention Thus, the present invention, the strap having a slit, a plate surface portion having a width corresponding to a plate surface on an extension in the longitudinal direction of each slit of the strap pressurized, the width of the slit Is bent so that a strap having a reduced width of each slit can be obtained. So, if you need one particular strap,
According to this method, the slit width can be reduced so that it can be manufactured to be used for insertion connection of the electrode plate group corresponding thereto, and conventionally, a slit having a width smaller than the plate thickness could not be manufactured by punching, According to the present method, it is possible to manufacture it, and it is possible to produce a particularly thin plate ear group strap. According to this method, when a downward bent portion is formed, an effect is produced in which a pole strap can be manufactured smoothly without disturbing the welding operation of the pole to the upper surface of the strap.

[Brief description of the drawings]

FIG. 1 through

FIG. 4 shows an example of the production method of the present invention.

FIG. 1 is a top view of a strap.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a top view of the strap of the present invention.

FIG. 4 shows the IV- of the strap of FIG.
It is an IV line sectional drawing.

[Explanation of symbols]

2 'slit 4 bending part 5
Pole

Claims (2)

(57) [Claims] 1. After stamping and manufacturing a strap having a plurality of slits for inserting an electrode plate group from a metal plate, a plate surface on a lengthwise extension of each slit of the strap is pressed, and A method for manufacturing a strap for connecting an electrode plate ear group of a storage battery, comprising bending a plate surface portion within a width corresponding to the width of the battery. 2. A plate surface on an extension in the length direction of the slit,
A strap for connecting an electrode plate ear group of a storage battery having a downward bent portion.