JPH10144367A - Terminal fixing tool for battery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fix a terminal fitting in a battery post without a tool. SOLUTION: A fixing tool F is used for fixing a terminal metal fitting 40 connected at the terminal of an electric wire W in a battery post 30 and constituted of a lever 10 and a bracket 20. A cam part 11 is formed in the lever 10. On the other hand, the supporting groove 22A to support the lever 10 in freely turnable manner and a hooking piece 21 which can be joined to a seat part 31 formed in a battery post are formed in the bracket 20. When the lever 10 is turned after the battery post 30 is inserted into the terminal metal fitting 40 and a spring member 50 and the bracket 20 and the lever 10 are installed, the cam part 11 pushes the spring member 50 with the turning movement of the lever 10 and consequently the terminal metal fitting 40 is pushed to the seat part 30 and held in the seat part 30. As a result, only by the turning operation of the lever 10, the terminal metal fitting 40 is fixed and no tool such as a wrench, etc., is needed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a fixture for fixing a terminal fitting to a battery post.

[0002]

2. Description of the Related Art Conventionally, to connect an electric wire to a battery,
This was performed by fitting a terminal fitting attached to the end of the electric wire into a battery post, and then tightening a nut with a washer from above.

[0003]

However, tightening of the nut is difficult by hand, and usually requires the use of a wrench, impact wrench, or the like. That is, work could not be performed without tools such as a spanner and an impact wrench. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a battery terminal fixing tool that can fix a terminal fitting to a battery post without using a tool.

[0004]

In order to achieve the above object, a battery terminal fixture according to claim 1 is a fixture for fixing a terminal fitting to a battery post, comprising a lever having a cam portion. A bracket having a hook that can be hooked on the battery side and a support that rotatably supports the lever, and a pedestal for supporting the inserted terminal fitting is formed on the battery post, and the lever is turned. It is characterized in that the terminal fitting is pressed onto the pedestal part by a cam action in accordance with the moving operation.

According to a second aspect of the present invention, there is provided a battery terminal fixture according to the first aspect, further comprising a holding means for holding the lever at a position where the lever is pressed against the terminal fitting. According to a third aspect of the present invention, in the battery terminal fixing device according to the first or second aspect, a spring member is inserted between the terminal fitting and the cam portion, and the terminal fitting is formed by the cam portion via the spring member. It is characterized by being pressed.

[0006]

According to the first aspect of the present invention, to connect an electric wire or the like to a battery, first, a terminal fitting connected to an end of the electric wire or the like is inserted into a battery post. further,
The bracket is mounted such that the hook is hooked on the battery side. Then, when the lever is rotated, the brackets stick against the battery side, and the cam presses the terminal fitting against the pedestal. Thereby, the terminal fitting is fixed to the battery post, and the battery is electrically connected to the electric wire or the like. Thus, in the present invention, the terminal fitting can be fixed only by operating the lever, so that a tool such as a wrench is not required.

According to the second aspect of the present invention, after the terminal fitting is pressed against the pedestal by the rotation of the lever, the lever is held at that position. Therefore, the lever is prevented from returning to the original position, and the fixed state of the terminal fitting to the battery post can be reliably held. According to the third aspect of the present invention, the terminal fitting is pressed onto the pedestal via the spring member. Therefore, even if the terminal is thin, it can be reliably pressed onto the pedestal through the spring member.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a battery terminal fixture of the present invention will be described below with reference to FIGS. Battery terminal fixture F of the present embodiment
Is configured to include a lever 10 having a cam portion and a bracket 20 for rotatably supporting the lever, and an electric wire (constituted by a braided wire in this embodiment) for electrically connecting between the battery posts 30. It is used for fixing the terminal fitting 40 provided at the terminal of W to the battery post 30.

The battery post 30 protrudes from the upper surface of the battery B. The base of the battery post 30 is formed to have a large diameter, and the upper end of the base of the battery post 30 projects in a flange shape to form a pedestal 31. On the upper surface of the pedestal portion 31, a projecting portion 31A slightly projecting in a disk shape is formed.
The upper portion of the battery post 30 is formed to have a small diameter and serves as an insertion portion 32 for inserting a terminal fitting 40 and a spring member 50, which will be described later. It is sandwiched by the member 50.

The bracket 20 is formed by bending a metal plate into a channel shape when viewed from above, and is mounted on the battery post 30 from the side. The lower edge of each side plate of the bracket 20 is bent inward at a substantially right angle to form a hook piece 21, which engages with the lower surface of the pedestal 31 when the bracket 20 is mounted on the battery post 30. It is supposed to. Further, bearing grooves 22 are formed on the side plates on the opposite side to face each other. Each of the bearing grooves 22 is cut downward from the upper edge of each side plate, then extends rearward (to the left in FIG. 3), and further has its rear end slightly cut upward to form the support groove 22A. Is formed. Further, the upper portion of the side plate connecting the opposing side plates is cut out to avoid interference with the base of the terminal fitting 40, and the bracket 20
Is mounted with the barrel 42 of the terminal fitting 40 protruding outward.

The lever 10 is formed in a gate shape, a grip portion 13 is formed at an upper end portion, and a cam portion 11 is formed at both lower end portions.
Are formed. Each cam portion 11 is formed in a triangular shape, and slightly bulges inward. A turning shaft 12 protrudes from the outer surface of the cam portion 11, and the lever 10 is supported by the bracket 20 in a rotatable state by fitting the turning shaft 12 into a bearing groove 22 of the bracket 20. .
As shown in FIG. 2, the protruding edge of the rotating shaft 12 projects in a flange shape, and forms a retaining portion 12 </ b> A so as not to come out after being inserted into the bearing groove 22.

The cam portion 11 will be described in detail with reference to FIG.
The distance from the rotation shaft 12 to the right side surface 11B of the cam portion 11 is set to be greater than the distance to the bottom surface 11A, and the right edge formed by the bottom surface 11A and the right side surface 11B is larger than the distance to the right side surface 11B. The distance to the part 11C is set to be larger. In this state, the lever 10 is mounted as described later (the state shown in FIG. 3).
In this case, the spring member 50 is not pressed, but the spring member 50 is gradually pressed by the right edge portion 11C as the lever 10 is rotated, and the right edge portion 11C is directly below the rotation shaft 12 (FIG. 4). This position is hereinafter referred to as a maximum pressing force position), and the pressing force becomes maximum. When reaching the right side surface 11B, the pressing force is slightly weakened, and the lever 10 is held in that state (the state shown in FIG. 5). It has become so. Here, the right edge portion 11C is hereinafter referred to as a cam pressing portion 11C, and the right side surface 11B is referred to as a holding surface 11B. The cam pressing portion 1
1C has an R shape for smooth pressing.

The terminal fitting 40 is formed by punching a conductive metal plate into a substantially L-shape, and has an insertion hole 41 formed at one end thereof to insert the insertion portion 32 of the battery post 30. The other end of the terminal fitting 40 is connected to a barrel 42.
A pair of barrel pieces 42A are provided therein, and by crimping the barrel piece 42A, the electric wire W is connected to the terminal fitting 40A.
It can be crimped on.

The spring member 50 is formed in a disk shape, and has an insertion hole 51 formed at the center thereof so that the insertion portion 32 of the battery post 30 can be inserted. In addition, the insertion hole 51
A plurality of cuts are made at equal intervals in the periphery of the cutout, and the split pieces divided by the cuts project obliquely downward to form elastic piece portions 52 for pressing the terminal fittings 40. doing.

Next, the operation of the present embodiment will be described.
To connect the electric wire W to the battery B, first, the terminal fitting 40 crimped to the end of the electric wire W is fitted into the insertion portion 32 of the battery post 30. Further, from above the spring member 5
0 is inserted into the insertion portion 32. Thereafter, the bracket 20 is inserted into the battery post 30 from the side so that the hooking piece 21 enters the lower side of the pedestal 31, and the lever 10 is mounted on the bracket 20 (see FIG. 2).

In order to mount the lever 10, first, the lever 10 is vertically held, and the bracket 20 is held from its lower end.
The rotation shaft 12 is fitted into the bearing groove 22 of the bracket 20. After that, the lever 10
Is slid backward along the bearing groove 22 so that the rotating shaft 12
Is located at the rear end of the bearing groove 22 (see FIG. 3).

Then, the user grips the grip 13 of the lever 10 and rotates in the direction of the arrow shown in FIG. Then, bracket 2
The hooking piece 21 of 0 is hooked on the lower surface of the pedestal 31,
When the bracket 20 is stretched, the rotating shaft 12 escapes into the support groove 22A and is pressed against the upper end thereof. Thereafter, the rotation shaft 12 rotates at that position, and the cam pressing portion 11C starts pressing the upper surface of the spring member 50. As a result, the elastic piece 52 of the spring member 50 is bent, and the terminal fitting 40 is pressed against the protrusion 31 </ b> A on the pedestal 31.

Further, when the rotation of the lever 10 advances and the cam pressing portion 11C is positioned directly below the rotation shaft 12, the spring member 5
The pressing force with respect to 0 becomes maximum, and the elastic piece portion 52 is largely bent, so that the terminal fitting 40 is strongly pressed against the protruding portion 31A (see FIG. 4). Thereafter, when the lever 10 reaches the holding surface 11B, the pressing force against the spring member 50 is slightly weakened.
Is held in a state where the spring member 50 is pressed (see FIG. 5). As a result, the terminal fitting 40 is held in a state of being pressed onto the pedestal 31, and the fixing operation of the terminal fitting 40 is completed.

In the state where the spring member 50 is pressed by the holding surface 11B, even if a force in the returning direction acts on the lever 10,
In order for the lever 10 to return to the original position, the lever 10 must go over the maximum pressing position, thereby preventing the lever 10 from accidentally returning to the original position.

As described above, in the present embodiment, the terminal fitting 40 is moved to the pedestal portion 31 of the battery post 30 by operating the lever 10.
Since the battery is pressed upward, the electric wire W or the like can be easily connected to the battery B without using a tool such as a wrench as in the related art. Also, the cam surface 11 has a holding surface 11B.
Is formed, it is possible to prevent the lever 10 from returning to the original position carelessly, and it is also possible to ensure that the pressed state can be maintained. Furthermore, since the terminal fitting 40 is pressed onto the pedestal portion 32 via the spring member 50, even when the terminal fitting 40 is thin, it can be reliably pressed onto the pedestal portion 32. This also has an effect that even if there is a slight assembling error or the like, this can be absorbed and the terminal fitting 40 can be reliably pressed onto the pedestal portion 32.

The present invention is not limited to the above-described embodiment, but can be modified as follows, for example, and these embodiments also belong to the technical scope of the present invention. (1) In the above embodiment, the spring member 50 is connected to the cam 11
Although the terminal fitting 40 is pressed on the pedestal 31 by pressing the terminal fitting, the terminal fitting may be directly pressed by the cam portion.

(2) In the above embodiment, the bracket 2
The hook portion 21 of 0 is configured to be hooked on the lower surface of the pedestal portion 31. However, an engagement protrusion may be provided on the battery body and hooked on this.

(3) In the above embodiment, the battery terminal fixture of the present invention is used for fixing the terminal fitting 40 provided at the end of the electric wire for conducting connection between the batteries to the battery post 30. However, it may be used simply to fix the terminal fitting provided at the end of the lead wire to the battery post.

(4) In the above embodiment, the spring member 50
Cuts into the periphery of the insertion hole 51 to make the elastic piece 5
2, but may be a coil spring or the like. In addition, the present invention can be implemented with various modifications without departing from the scope.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing the entire embodiment.

FIG. 2 is a side sectional view showing a state where a bracket and the like are mounted.

FIG. 3 is a front sectional view showing a mounted state of a lever.

FIG. 4 is a front sectional view showing a maximum pressing position of a lever.

FIG. 5 is a front sectional view showing a pressed and held state of a lever.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Lever 11 ... Cam part 11B ... Holding surface (holding means) 20 ... Bracket 21 ... Hook piece part (hook part) 22A ... Support groove (support part) 30 ... Battery post 31 ... Pedestal part 40 ... Terminal fitting 50 ... Spring member

Claims (3)

[Claims] 1. A fixing device for fixing a terminal fitting to a battery post, comprising: a lever having a cam portion; a hook portion hookable on a battery side; and a support portion rotatably supporting the lever. And a pedestal portion for supporting the inserted terminal fitting is formed on the battery post, and the terminal fitting is pressed onto the pedestal portion by a cam action as the lever is rotated. A battery terminal fixture, characterized in that: 2. The battery terminal fixing device according to claim 1, further comprising holding means for holding the lever at a position where the lever is pressed against the terminal fitting. 3. The device according to claim 1, wherein a spring member is inserted between the terminal fitting and the cam portion, and the terminal fitting is pressed by the cam portion via the spring member. Terminal fixing device for a battery.