JP2574236Y2 - Battery terminal - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery terminal attached to an electrode (battery post) of a battery mounted on an automobile or the like, and more particularly to a method of fixing with a bolt and a nut using a tightening tool such as an impact wrench. Instead of using a lever type, the battery terminal can be fixed to the battery post with one touch without using a tool.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 7, a battery terminal of this type is protruded from an upper surface of a battery 1 and a battery terminal (hereinafter abbreviated as a post) 2 is attached to a battery post (hereinafter abbreviated as a post). 3) The electrode fitting portion 3a is externally fitted, the bolt 4 is passed through the bolt holes of the substrate portion 3b and the tightening plate portion 3c in the horizontal direction, and the impact wrench 5 is tilted sideways with respect to the bolt 4. The nut 6 is tightened from the horizontal direction, and the electrode fitting portion 3 a is pressed against the post 2 to fix the terminal 3 to the post 2.

[0003] In recent years, the number of components installed in the engine room of an automobile has become extremely large and the density has increased, and a protrusion (for example, an air duct or the like) higher than a post is provided around the battery.
And electric wires are often handled. In such a situation, as described above, when the bolt 4 is considered in the horizontal direction and the nut 6 is tightened in a state where the impact wrench 5 is tilted sideways, the impact wrench interferes with other parts and is difficult to tighten. At the same time, in some cases, there is no space for installing the impact wrench in the horizontal direction, so that the impact wrench cannot be tightened.

In addition, when the impact wrench interferes with another part, for example, when the impact wrench contacts the negative post while the positive post is being tightened, a short circuit occurs. May cause a vehicle fire. Therefore, a problem arises in that the shape of another component must be changed in order to prevent the interference.

To solve the above problem, as shown in FIGS. 8 (A) and 8 (B), a terminal main body 3 'is different from a first terminal piece 3'a having a semicircular arc on one side of an annular electrode fitting portion. A second terminal piece 3'b having a lateral semicircular arc is divided into two parts, and the shaft 7 attached to the second terminal piece 3'b is inserted into the long groove 3'a-1 of the first terminal piece 3'a. An electric connector for a battery having a structure in which links 8 and 8 are fixed to both ends of the shaft 7, a connecting rod 9 is fixed to the other ends of the links 8 and 8, and both ends of the connecting rod 9 are locked to a cover 10. Has been proposed. (Japanese Utility Model Publication No. 4-14863)

[0006] In the above-mentioned electric connector for a battery, the cover 10 is rotated about the connecting rod 9 as a fulcrum,
The battery post is sandwiched between the semicircular arc portions of the first terminal piece 3'a and the second terminal piece 3'b.

[0007]

[Problems to be Solved by the Invention] The above-mentioned electric connection device for a battery does not use a fixing method using bolts and nuts.
There is an advantage that the terminal can be fixed only by pressing down the cover 10, but the structure is very complicated, for example, the terminal body is divided into two and a link and a connecting rod are required.
There is a drawback that the number of parts is large and the manufacturing cost is high. In addition, there are many steps of assembling these many components, and there is a disadvantage that the assembling operation is troublesome.

The present invention has been made in view of the above-mentioned problem. First, the terminal main body is made integral instead of being divided, and the electrode fitting portion of the terminal main body is pressed against the battery post. Has a very simple structure that simply supports the lever for rotation to the terminal body in a freely rotatable manner, minimizing the size, reducing the number of parts and the number of assembly steps, and enabling the assembly operation with a small operating force. It is.

[0009]

In order to achieve the above-mentioned object, in the present invention, an annular electrode fitting portion externally fitted to a battery post is continuously provided at a rear end of a wire connecting substrate portion. An open end is provided at one of the left and right ends of the electrode fitting portion,
Each of these free ends has a fastening portion protruding therefrom, and a terminal body having a lever support shaft protruding at a position facing the free end, and one of the bearing portions protruding from the rear ends of both sides of the substrate,
A lever provided with a cam hole for inserting the pair of front and rear tightening portions on the other of the bearing portions while the rotatable mounting portion is mounted on the lever support shaft portion, and the tightening portion is located at a long portion of the cam hole. Then, the gap between the tightening parts is widened, and when the lever is tightened, the tightening part is located in the short part of the cam hole and the gap narrows, and the free end of the electrode fitting part is closed and pressed against the battery post The battery terminal is provided as follows.

[0010]

In the battery terminal of the present invention, since the left and right tightening portions are provided with a gap before the battery terminal is attached to the battery post, the free end of the electrode fitting portion is opened to easily attach the battery post to the battery post. It is attached. After installation, by rotating the lever, the tightening part is positioned from the long part of the cam hole to the short part, narrowing the gap between the tightening parts,
By closing the free end of the electrode fitting part, the battery post can be securely pressed.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. In the first embodiment shown in FIGS. 1 to 5, the battery terminal 15 includes a terminal body 16 and a tightening lever 17, and the lever 17 is rotatably attached to the electrode fitting portion of the terminal body 16. I have.

As shown in FIG.
Is a stat type, formed by bending a single metal plate, providing a flat-plate-shaped electric wire connection substrate 20 at one end, and protruding a stat bolt 21 from the electric wire connection substrate 20. doing. The stat bolt 21 is configured such that an annular portion 23 of a terminal crimped to an electric wire 22 is fitted to the outside and tightened by a nut 24 for connection.

An electrode fitting portion 25 is provided at the rear end of the electric wire connection substrate portion 20 in a ring shape. The electrode fitting portion 25 is provided with a flange portion 26 in which one of the left and right side ends is opened, and which protrudes in the horizontal direction along the outer periphery of the lower end.

At the open end of the electrode fitting portion 25, semi-annular fastening portions 27A and 27B, each of which is a half ring, are protruded at the center thereof. The fastening portion 27A,
Reference numeral 27B is such that when the free end of the electrode fitting portion 25 is in the closed state, it abuts with each other and apparently forms one ring.

The electrode fitting portion 25 has a lever support shaft portion 29 projecting from the outer wall at a position facing the other end in the diameter direction from the center of the tightening portions 27A and 27B.

The lever 17 is formed by bending both side surfaces of the substrate 32 into a U-shaped cross section.
Bearing portions 33 and 34 are provided by extending the rear end of 31. A mounting hole 36 is formed in one of the bearing portions 34, and the lever support shaft portion 29 is inserted into the mounting hole 36 and tightened rotatably.

As shown in FIG. 3, the other bearing portion 33 has a cam hole 35 formed by combining three circles. In the cam hole 35, a circle R1 indicated by a dotted line in the figure is positioned at the center of the bearing portion 33, and a circle R2 indicated by a dashed line and a circle R3 indicated by a two-dot chain line are vertically displaced and combined to form a center. The shape has bulging portions 35d and 35e continuous with a part of the upper part of the circle R2 and a part of the lower part of the circle R3 above and below both sides 35b and 35c of the perfect circular part 35a. That is, the perfect circular portion 35a is a short portion having a short diameter D1 passing through the center O of the cam hole 35, and the distance D2 is long between the upper and lower bulging portions 35d and 35e passing through the center O orthogonally to the diameter D1. And a cam shape having a short portion and a long portion.

When the tightening portions 27A and 27B of the terminal body 16 are inserted into the cam holes 35, and the half-ringed semi-annular tightening portions 27A and 27B are inserted into the short circular portions 35a. A small gap S is provided therebetween, and when the fastening portions 27A and 27B are located at the bulging portions 35d and 35e of the long portions, the gap S is set to be widened. After the insertion, the fastening portion 27A protruding from the cam hole 35,
The ends of 27B are bent outwardly, and these bent portions are used as locking portions 28A and 28B to the bearing portion 33.

The positional relationship between the cam hole 35 and the tightening portions 27A and 27B is such that, as shown in FIG.
Bulges 35d, 35e located at both ends of the long part (D2)
Are located in the horizontal direction in the figure. As a result, the right and left tightening portions 2
7A and 27B are located in the bulging portions 35d and 35e so as to leave a gap S between the tightening portions 27A and 27B. On the other hand, when the lever 17 is rotated to the left by 90 ° in the X direction and laid down to a substantially horizontal position as shown in FIG.
The right and left tightening portions 27A and 27B are located at both ends of the short portion (D1) of the cam hole 35 forming the perfect circular portion 35a of the tightening portion 2.
The gap between 7A and 27B becomes smaller than the gap S.

The rear end of the substrate 32 of the lever 17 has an arc shape larger than the annular outer periphery of the electrode fitting portion 25,
Therefore, when the lever 17 is attached to the terminal body 16, the substrate 17 is prevented from interfering with the electrode fitting portion 25.

When assembling the battery terminal 15 to the battery post 2, first,
As shown in FIG. 4, the terminal 15 is set in a state where the lever 17 is directed upward, a space is left between the tightening portions 27A and 27B, the free end of the electrode fitting portion 25 is opened, and the battery post 2 is opened. The electrode fitting part 25 is covered from above and fitted outside.

Next, the lever 17 is moved forward in the X direction in FIG.
Defeat By this operation, the round portion 35 of the cam hole 35 is formed.
a rotates counterclockwise in the front-rear direction. By this rotation, the longitudinal direction of the cam hole 35 becomes an obtuse angle from the acute direction with respect to the horizontal direction, and the gap S narrows. The lower end of the tightening portion 27A and the upper end of the tightening portion 27B are located at the projection points Q1 and Q2 of the cam hole 35, respectively. The gap at the end is reduced to the maximum.

When Q1 and Q2 are exceeded, the force required for the rotation operation is slightly reduced, the gap is slightly widened, and the operation is rotated by approximately 90 ° to complete the tightening. As described above, the battery terminal 15 is prevented from coming off because the lever 17 is attached to the terminal body 16 beyond the thought points Q1 and Q2. Therefore, the electrode fitting portion 25
Is securely fixed to the battery post 2 and is in the state shown in FIG.

In the second embodiment shown in FIG. 6, the wire connecting board 20 of the first embodiment is a barrel type 21 'as a crimping type. Since the configuration is the same as that of the first embodiment, the same reference numerals are given and the description is omitted.

[0025]

As is clear from the above description, the battery terminal of the present invention has a very simple configuration in which the lever is rotatably mounted on the integrally formed terminal body, and the lever is rotated. With just one touch, the battery terminal can be pressed and fixed to the battery post with one touch. Therefore, it is possible to manually mount the apparatus without using a conventionally required tightening tool such as an impact wrench, thereby greatly improving workability and improving the compatibility with other parts generated when the impact wrench is used. Interference is prevented, and the problem of occurrence of a short circuit is eliminated.

One of the bearing holes of the lever is used as a cam hole, and a tightening portion projecting from the free end of the electrode fitting portion is inserted into the cam hole, and the gap between the tightening portions is reduced by rotating the lever. Since the configuration is simple, the number of parts can be reduced and the assembling work time can be reduced. In addition, there are various advantages such as downsizing as compared with the conventional one-touch type battery terminal, and secure fastening without taking up space.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a battery terminal according to a first embodiment of the present invention.

FIG. 2 is a plan view showing the first embodiment.

FIG. 3 is a plan view showing the lever of the first embodiment.

FIG. 4 is an operation explanatory diagram of the first embodiment.

FIG. 5 is a side view showing a state where the battery terminal of the first embodiment is fixed to the battery post.

FIG. 6 is a perspective view showing a battery terminal of a second embodiment.

FIG. 7 is a perspective view showing a state in which a conventional battery terminal is fixed to a battery post.

8A and 8B are cross-sectional views showing another conventional battery terminal.

[Explanation of symbols]

 2 Battery Post 15 Battery Terminal 16 Terminal Body 17 Lever 21 Wire Connection Board 25 Electrode Fitting 27A, 27B Tightening 33, 34 Bearing 35 Cam Hole

Claims (1)

(57) [Scope of request for utility model registration] A battery and a battery are provided at the rear end of the wire connection board.
An annular electrode fitting portion externally fitted to the post is continuously provided, open ends are provided at one of the left and right ends of the electrode fitting portion, and a fastening portion is protruded from each of these free ends. One of a terminal body having a lever support shaft protruding at a position facing the end, and one of a bearing protruding from the rear end of both sides of the substrate is rotatably attached to the lever support, and the other of the bearings And a lever provided with a cam hole for inserting the pair of front and rear tightening portions. When the tightening portion is located in the long portion of the cam hole, a gap between the tightening portions is widened, and when the lever is tightened, the cam is formed. A battery terminal having a configuration in which a tightening portion is located at a short portion of a hole to narrow a gap, and a free end of an electrode fitting portion is closed to press against a battery post.