JPH06313456A - Fixing method for coil spring to metallic board-like member - Google Patents

Abstract

PURPOSE:To sufficiently fix a spring by folding and raising the part surrounded by a pair of U-shaped cut lines provided on a metallic board-like member so as to be bent, making the base end side of a coil spring in contact with the bent inner surface, and putting down the bent leg flaps to both sides. CONSTITUTION:A pair of U-shaped cut lines 2, 3 are cut and provided on a metallic board-like member 1, and parts surrounded by them are folded and raised, and then the folded and raised parts are bent in the required direction, thereby a pair of fixing bent leg flaps 4, 5 are obtained. A coil 7 on the base end side of a coil spring 6 is brought in contact with the board-like member 1 in the state both side parts 8, 9 of the coil 7 are faced to the bent inner surfaces 10, 11 of both fixing bent leg flaps 4, 5, and both fixing bent leg flaps 4, 5 are put down in the direction of both side parts 8, 9 in this state. Accordingly, the contact amount can be increased, and the elimination of poorly fixing to the metallic board-like member can be completely achieved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of fixing a coil spring to a metal plate-shaped member, which is effective for fixing a coil spring in contact with a battery mainly to a cathode terminal plate of a battery box, a flashlight or the like.

[0002]

2. Description of the Related Art Conventionally, a method of fixing a coil spring to a metal plate-shaped member of this type is to cut a pair of U-shaped cutting lines 2 and 3 on a metal plate-shaped member 1 and to form each U-shaped cutting line 2. The first step of obtaining the pair of fixing straight leg pieces 13 and 14 by subjecting the portion surrounded by 3 to the vertical bending process, the wire ring 7 on the base end side of the coil spring 6 is attached to the plate member 1. Both side portions 8 and 9 of the ring 7 are straight inner surfaces 1 of the straight leg pieces 13 and 14 for fixing both of them.
The second step is to bring the fixing leg legs 13 and 14 into contact with each other in a state of facing each other, and the third step of tilting both the fixing straight leg pieces 13 and 14 toward the side portions 8 and 9 in the contacted state. It was

[0003]

In the case of the method of fixing the coil spring to the metal plate-like member described in the above-mentioned prior art, the contact amount (contact area amount) of the fixing straight leg pieces 13 and 14 with respect to the wire wheel 7. ) Was less, the presser foot was not sufficiently fixed by the fixing straight leg pieces 13 and 14.

The present invention provides a novel method for fixing a coil spring to a metal plate-like member, which increases the amount of contact of the fixed leg piece with respect to the coil wheel of the coil spring and eliminates the insufficient fixing of the coil spring. To aim.

[0005]

In order to achieve the above object, a method of fixing a coil spring to a metal plate member according to the present invention is to cut a pair of U-shaped cutting lines 2 and 3 on a metal plate member 1. A pair of fixing curved leg pieces 4 and 5 are provided by performing a process of providing, a process of bending a part surrounded by the U-shaped cutting lines 2 and 3 and a process of bending the bent part in a required direction. The first step of obtaining the coil spring 6 on the plate member 1
The second step of contacting the base end side wire ring 7 with the both side portions 8 and 9 of the wire ring 7 facing the curved inner surfaces 10 and 11 of the fixing curved leg pieces 4 and 5, respectively. In the contacted state, the third step of tilting both the fixed bending leg pieces 4 and 5 toward the both side portions 8 and 9 is performed.

[0006]

In the present invention, the leg pieces for holding down the coil spring are curved so that the hit amount can be increased.
This is clear from a comparison of the figures without much detailed explanation.

[0007]

The method of fixing the coil spring to the metal plate-shaped member according to the present invention is a process of cutting a pair of U-shaped cutting lines 2 and 3 on the metal plate-shaped member 1 and the respective U-shaped cutting lines 2. ,
A first step of obtaining a pair of fixing curved leg pieces 4 and 5 by performing a process of bending a part surrounded by 3 and a process of bending each of the bent parts in a desired direction, a coil spring for the plate-shaped member 1. 6 on the base end side of the wire ring 7 on both sides 8 of the wire ring 7,
Reference numeral 9 is the curved inner surface 10, 11 of the above-mentioned fixed curved leg pieces 4, 5.
It is characterized by performing a second step of abutting in a state of confronting with each other and a third step of inclining both of the fixing curved leg pieces 4 and 5 toward the both side portions 8 and 9 in the abutting state. As described in the above operation, it is possible to increase the amount of contact, and it is possible to completely eliminate the insufficiency of the presser stop (fixation) with respect to the metal plate member.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. First, a process of cutting a pair of U-shaped cutting lines 2 and 3 at the time of punching the metal cathode terminal member 1, a process of bending up a portion surrounded by the U-shaped cutting lines 2 and 3, and The terminal member 1 is provided with a pair of fixing curved leg pieces 4 and 5 by performing processing for bending each folded portion in a desired direction. Next, the terminal member 1 is provided with the coil 7 on the base end side of the coil spring 6 in a state in which both side portions 8 and 9 of the coil 7 face the curved inner surfaces 10 and 11 of the fixing curved leg pieces 4 and 5, respectively. In this contacted state, both fixing curved leg pieces 4 and 5 are tilted toward the both side portions 8 and 9 to complete the fixing of the coil spring 6 to the terminal member 1.

The curve described in the text includes a bent state like a dogleg.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a terminal member before a fixed curved leg piece is provided in an embodiment of the present invention.

FIG. 2 is a sectional view showing a terminal member similarly provided with fixed curved leg pieces.

FIG. 3 is a sectional view showing a state in which a coil spring is also brought into contact with the terminal member.

FIG. 4 is a cross-sectional view showing a state in which the fixed curved leg piece is also tilted.

FIG. 5 is a plan view showing a state where the coil spring is fixed to the terminal member in the same manner.

FIG. 6 is a sectional view showing a terminal member before a fixed curved leg piece is provided in a conventional example.

FIG. 7 is a sectional view showing a terminal member similarly provided with the fixing straight leg piece.

FIG. 8 is a sectional view showing a state in which a coil spring is also brought into contact with the terminal member.

FIG. 9 is a cross-sectional view showing a state in which the fixing straight leg piece is also tilted to complete the fixing.

[Explanation of symbols]

 1 member 2 cutting line 3 cutting line 4 fixed curved leg piece 5 fixed curved leg piece 6 coil spring 7 wire ring 8 both side portions 9 both side portions 10 curved inner surface 11 curved inner surface 13 straight straight leg piece 14 straight straight leg surface 15 for fixing straight leg surface 15 16 straight inside

Claims (1)

[Claims] 1. A process of cutting a pair of U-shaped cutting lines 2 and 3 on a metal plate-shaped member 1, a process of folding a portion surrounded by the U-shaped cutting lines 2 and 3, and a folding process. A first step of obtaining a pair of fixing curved leg pieces 4 and 5 by subjecting a bent portion to a bending in a desired direction, a coil spring 6 on the plate member 1.
The second step of contacting the base end side wire ring 7 with the both side portions 8 and 9 of the wire ring 7 facing the curved inner surfaces 10 and 11 of the fixing curved leg pieces 4 and 5, respectively. A method for fixing a coil spring to a metal plate-shaped member, comprising a third step of tilting both fixing curved leg pieces (4, 5) toward the both side parts (8, 9) in a contacted state.