JP2003187782A - Battery terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a battery terminal in which a force in the left/right direction can act uniformly toward its center. <P>SOLUTION: The battery terminal comprises a battery terminal body 22, and a clamping means, i.e., a clamp 23. The clamp 23 comprises a bracket 42 including a substrate 46 having a bolt insertion hole 48 and a pair of taper parts 47 and 47, and a bolt 43 and a nut 44 for slide-contacting the taper parts 47 and 47 relative to coupling parts 26 and 26. Slid parts 38 and 38 onto which a force acts from the slide taper parts 47 and 47 are formed at centers in the vertical directions at opposite ends of the coupling parts 26 and 26 in the longitudinal direction. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery terminal provided with a battery terminal body having a battery post insertion hole and a tightening means for contracting the battery post insertion hole in a diameter reducing direction.

[0002]

2. Description of the Related Art In FIG. 3, a conventionally used battery terminal 1 has a pair of clamp members 2 and 2 for holding a battery post (not shown), and a direction in which the positional relationship between the pair of clamp members 2 and 2 is brought close to each other. It is configured to include a bracket 3 that is moved to a position, a bolt 4 and a nut 5.

The pair of clamp members 2, 2 are integrally formed with a pair of substantially rod-shaped tightening portions 6, 6. The pair of tightening parts 6, 6 are arranged so as to have a tightening gap 7, and taper parts 8, 8 for the bracket 3 are formed on each side surface in the left-right direction.

3 and 4, the bracket 3
Are arranged below the pair of tightening portions 6, 6. A recess 9 is formed on the upper surface of the bracket 3. The recess 9 has tapered portions 10 and 10 corresponding to the tapered portions 8 of the pair of tightening portions 6 and 6.
Are formed. Further, the bolt 4 is vertically inserted through the bottom of the recess 9. Bolt 4
Passes through the tightening gap 7 and is screwed with the nut 5 on the upper side of the pair of tightening portions 6, 6. The pair of clamp members 2, 2 and the bracket 3 are manufactured by casting.

In the above structure, when the nut 5 is tightened, the bracket 3 is pulled upward. When the bracket 3 is pulled upward, the taper portions 10 and 10 of the bracket 3 narrow the gap between the pair of tightening portions 6 and 6. As a result, the pair of clamp members 2 and 2 move in a direction in which they approach each other, and the battery terminal 1 is attached and fixed to the battery post.

[0006]

By the way, in the above-mentioned prior art, the battery post is attached by a structure for converting the vertical tightening force into the horizontal tightening force. However,
The portions where the bracket 3 and the pair of tightening portions 6 and 6 contact each other become the lower ends 11 and 11 of the tapered portions 8 and 8 of the pair of tightening portions 6 and 6, that is, the lower portions of the pair of tightening portions 6 and 6. Therefore, there is a problem that the tightening force in the left-right direction is not evenly transmitted toward the center.

It is possible to arrange the brackets 3 one above and one below the pair of tightening portions 6 to solve the above problems, but there is a concern that the number of parts will increase and the assemblability will deteriorate. To be done.

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 capable of exerting a tightening force in the left-right direction toward the center without unevenness.

[0009]

SUMMARY OF THE INVENTION The battery terminal of the present invention as set forth in claim 1 for solving the above problems has a battery post insertion hole for inserting a battery post, which has a partly cut off portion. A battery terminal main body having an annular portion penetratingly formed in the up-and-down direction, and a pair of tightening portions provided in parallel with the annular portion with a tightening gap communicating with the partially cut portion; A pair of tightening portions are brought closer to each other to tighten the battery post insertion hole in a diameter reducing direction, and the tightening means is connected to a substrate having a bolt insertion hole and both left and right ends of the substrate, respectively. And a bracket having a pair of tapered portions, which is inserted into the bolt insertion hole and is operated from above the annular portion. A battery terminal with a bolt and a nut for sliding contact with the pair of tapered portions engaged state is performed for the pair of clamping portions and,
It is characterized in that a sliding contact portion on which a force from the pair of taper portions in sliding contact is applied is formed at the vertical center of both end portions of the pair of tightening portions in the left-right direction.

A battery terminal according to a second aspect of the present invention is the battery terminal according to the first aspect, wherein the sliding contact portion is in point contact with or in line contact with the pair of tapered portions in the front-rear direction. It is characterized by being formed as.

A battery terminal according to a third aspect of the present invention is the battery terminal according to the first or second aspect, wherein the bracket is arranged on either the upper side or the lower side of the pair of tightening portions. It is characterized in that it is formed into a shape that can be formed.

According to the present invention as set forth in claim 1,
Slidable contact portions with which the pair of tapered portions of the bracket slidably contact are formed at the vertical center of both ends of the pair of tightening portions in the left-right direction. When the sliding contact portion is formed at such a position and the tightening means is operated, the tightening force in the left-right direction generated by the sliding contact of the pair of taper portions acts uniformly toward the center. As a result, the pair of tightening portions are securely tightened in the direction toward each other. In addition, the battery post insertion hole contracts in the diameter reducing direction, and the battery post insertion hole is brought into pressure contact with the battery post, completing the connection of the battery terminal.

According to the present invention described in claim 2,
The sliding contact portion makes point contact or line contact in the front-rear direction with the pair of tapered portions. As a result, the tightening force in the left-right direction acts toward the center more evenly.

According to the present invention described in claim 3,
The bracket is formed in a shape that can be arranged on either the upper side or the lower side of the pair of tightening portions.
This improves the assembling property and operability of the tightening means.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view showing an embodiment of a battery terminal of the present invention. 2 is a front view of the battery terminal.

In FIGS. 1 and 2, reference numeral 21 indicates a battery terminal wound around a known battery post (not shown) having a tapered peripheral side surface whose tip diameter is smaller than that of the base end. . The battery terminal 21 is configured to include a battery terminal main body 22 and a tightening device 23 (corresponding to a tightening unit described in claims) including a plurality of constituent members.

The battery terminal body 22 is
It is manufactured by pressing a metal plate having conductivity, and has a pair of annular portions 24 and 25, a pair of connecting portions 26 and 26 (corresponding to a tightening portion described in the claims), and a pair of It has joining plates 27 and 28. In addition, the battery terminal body 22 includes a pair of joining plates 2
It has a terminal fixing bolt 29 held by 7, 28.

The axial direction of the battery post is defined as the vertical direction (corresponding to the vertical direction), and the tip of the battery post is defined as the upper side and the base end is defined as the lower side. In this specification, the annular portion 24 is arranged on the upper side and the annular portion 25 is arranged on the lower side. Similarly, it is assumed that the joint plate 27 is arranged on the upper side and the joint plate 28 is arranged on the lower side.

The annular portion 24 has a flat plate-shaped upper substrate 30. In addition, a battery post insertion hole 31 for inserting the battery post is formed substantially at the center of the substrate 30.
Are formed so as to penetrate vertically. Further, the left and right ends of the upper substrate 30 are respectively formed with engaging portions 32, 32 with their front ends facing downward.

The battery post insertion hole 31 is a portion that comes into contact with the peripheral side surface of the battery post, and is formed by bending the upper substrate 30 so that its tip faces upward. Further, the battery post insertion hole 31 is formed in an annular shape in accordance with the diameter of the front end side of the battery post. In addition, the battery post insertion hole 31
The portion between the connecting portions 26, 26 is formed in a divided state. Reference numeral 33 indicates a part of the battery post insertion hole 31 which is cut off.

The annular portion 25 has a flat plate-shaped lower substrate 34. A battery post insertion hole 35 for inserting the above-mentioned battery post is formed substantially in the center of the lower substrate 34.
Are formed so as to penetrate vertically. Further, engaging portions 36, 36 having their front ends facing upward are connected to the left and right ends of the lower substrate 34, respectively.

The battery post insertion hole 35 is a portion that comes into contact with the peripheral side surface of the battery post, and is formed by bending the lower substrate 34 so that its tip faces downward. Further, the battery post insertion hole 35 is formed in an annular shape in accordance with the diameter of the base end side of the battery post. Furthermore, the battery post insertion hole 35 is
The portion between the connecting portions 26, 26 is formed in a divided state. The part of the battery post insertion hole 35 that is partially cut is formed directly below the portion of the reference numeral 33 in the same manner (the reference numeral 33 is used).

The engaging portions 32, 32 of the upper substrate 30 and the engaging portions 36, 36 of the lower substrate 34 are arranged so that their tips are opposed to each other. Further, the tips are arranged such that the tips are in contact with or close to each other.

The connecting portions 26, 26 are portions for connecting the upper substrate 30 and the lower substrate 34 so as to overlap with each other with a space therebetween, and are formed in a U-shaped curved state. . That is, the front and rear ends of the connecting portions 26, 26 are connected to the front end of the upper substrate 30 (the left and right sides of the partially cut upper portion 33), and The end portion is formed so as to be connected to the front end of the lower substrate 34 (which is formed so as to be formed on both the left and right sides of the partially cut-off portion 33 on the lower side) and has a U-shaped side view in the left-right direction. In addition, the connecting portions 26, 26 have the tightening gap 37 communicating with the partially cut portions 33, 33.
Are arranged side by side in the left-right direction.

Inserting spaces are formed inside the connecting portions 26, 26 so as to penetrate in the left-right direction. Also,
Slidable contact portions 38, 38 are formed in the vertical center of the left and right ends (outer ends) of the connecting portions 26, 26, respectively. The sliding contact portions 38, 38 are portions that make point contact or line contact with a pair of tapered portions 47, 47 described later, and in the present embodiment, outside and the center of the curved portions of the connecting portions 26, 26. Is formed in. Reference numerals 39 and 39 denote tapered cut-off portions formed for the sliding contact portions 38 and 38. In addition, with respect to the upper and lower contact type connecting portions in which the above-mentioned insertion space does not exist in the connecting portions 26, 26, the same as the sliding contact portions 38, 38 on the extension of the contact surface (or the center in the vertical direction). It is assumed that the sliding contact portion is formed.

The joint plate 27 includes a contact plate portion 40 connected to the rear end of the upper substrate 30 and downward side walls 41 and 41 (only one of which is shown in the figure) connected to both end portions of the contact plate portion 40 in the left-right direction. ) And. The contact plate portion 40 is a rectangular flat plate, and the terminal fixing bolt 29 is provided at the center thereof.
A bolt insertion hole is formed therethrough.

The joint plate 28 includes a bolt standing plate portion formed continuously with the rear end of the lower substrate 34, and left and right ends of the bolt standing plate portion and three side walls formed continuously with the rear end portion. Is configured. The left and right side walls of the joining plate 28 are arranged inside the side walls 41, 41 of the joining plate 27.

The joint plates 27, 28 and the terminal fixing bolt 29 form a connecting portion for an external connecting terminal (not shown).

The tightening device 23 brings the connecting parts 26, 26 closer to each other through the tightening gap 37 and shrinks the battery post insertion holes 31, 35 in the diameter reducing direction. The bracket 42, the bolt 43, and the nut. 44
And a bolt holding spacer 45.

The bracket 42 is arranged above the connecting portions 26, 26. The bracket 42 is formed by bending a metal plate having a rectangular shape in plan view. That is, the bracket 42 is formed to have the substrate 46 and the pair of tapered portions 47, 47. A bolt insertion hole 48 is formed in the center of the substrate 46 so that the bolt 43 is inserted in the vertical direction. The taper portions 47, 47 are connected to both end portions of the substrate 46 in the longitudinal direction (horizontal direction), and are formed in a taper shape such that the distance between them gradually increases toward the tip. The bracket 42 may be arranged below the connecting portions 26, 26.

The bolt 43 is adapted to be inserted through the bolt insertion hole 48, the tightening gap 37, and a bolt holding hole 50 described later. The axis of the bolt 43 is inserted in parallel with the axes of the battery post insertion holes 31 and 35. In the present embodiment, the head 49 of the bolt 43 is arranged on the side of the lower substrate 34 (the reverse is also possible). Nut 44
Are adapted to be screwed into the bolts 43 from the upper substrate 30 side. If the tightening gap 37 is narrow,
A bolt relief portion (arc-shaped recess) as illustrated may be formed in the connecting portions 26, 26.

The bolt holding spacer 45 is used for the bolt 4
3 is a member made of metal or synthetic resin for preventing oblique insertion, and is formed in a substantially rectangular shape in plan view having an appropriate thickness. Further, the bolt holding spacer 45 includes the connecting portion 26,
It is designed to be inserted and arranged in the insertion space 26. A bolt holding hole 50 having a diameter slightly larger than the threaded portion of the bolt 43 is formed through the bolt holding spacer 45. In the present embodiment, the bolt holding hole 50 is formed so as to be positioned at the front end side of the bolt holding spacer 45 and at the center in the left-right direction (the position is not limited to this position). In addition, the bolt holding hole 50 connects the shaft of the bolt 43 to the battery post insertion hole 3
It is formed in a shape that can be arranged in parallel along the axes 1, 35. The bolt holding spacer 45 is arbitrarily set. The bolt holding spacer 4
5 is formed to have a long length in the left-right direction, and the tapered portion 4 is formed.
If the tips of 7, 47 are brought into contact with each other, there is an advantage that excessive tightening can be prevented.

When the tightening device 23 is set to the battery terminal body 22, the substrate 46 faces the upper surfaces of the connecting portions 26, 26, and the taper portions 47, 47 are near the sliding contact portions 38, 38. Alternatively, it comes into contact with the sliding contact portions 38, 38. Further, the bolt 43 is inserted from below the connecting portions 26, 26 into the tightening gap 37, the bolt holding hole 50, and the bolt insertion hole 48, and the nut 4
4 is screwed on the upper side of the connecting portions 26, 26.

Next, based on the above configuration, the attachment and fixing (connection) of the battery terminal 21 to the battery post will be described.

First, the battery terminal 21 is moved downward to bring the battery post insertion holes 31 and 35 into contact with the peripheral side surface of the battery post. next,
The battery terminal main body 22 is arranged so that the direction thereof is aligned with a predetermined direction. Then, the battery terminal body 22
From above, a nut (not shown) such as an impact wrench is used to tighten the nut 44, and the operation of the tightening device 23 is started.

When the nut 44 is tightened in the operation of the tightening device 23, the bolt 43 and the nut 44 are tightened.
The screwed state of is advanced. Then, when the bracket 42 is pressed against the connecting portions 26, 26 by the bolts 43 and the nuts 44, the taper portions 47, 47 move the sliding contact portions 38,
38 is slidably contacted. As a result, the vertical tightening force is converted into the horizontal tightening force, and the connecting portions 26, 26 are tightened in the directions approaching each other (left-right direction). Then, the battery post insertion holes 31 and 35 contract in the diameter reducing direction, and the battery post insertion holes 31 and 35 are brought into pressure contact with the peripheral side surface of the battery post. Then, in such a state, the connection of the battery terminal 21 is completed.

The battery terminal 21 of the present invention is
Since the sliding contact portions 38, 38 are formed at the vertical center of both end portions of the connecting portions 26, 26 in the left-right direction,
The tightening force in the left-right direction generated by the sliding contact between the tapered portions 47 of the bracket 42 can be applied toward the center without unevenness.

Further, the battery terminal 2 of the present invention
1 has one bracket 42 and the bracket 4
2 is formed so that it can be arranged on either the upper side or the lower side of the connecting portions 26, 26 (when arranged on the lower side, the cut-off portions 39, 39 are formed on the lower side), so consideration is given to the number of parts and the ease of assembly. You can also do it.

Further, the battery terminal 21 of the present invention surely avoids interference between the above-mentioned tool (not shown) and installation parts (not shown) around the battery, and facilitates connection work (installation work). You can also

In addition, it goes without saying that the present invention can be modified in various ways without departing from the spirit of the present invention. That is, in the above description, the battery terminal main body 22 is formed by pressing, but the present invention is not limited to this, and it may be formed by casting or the like (in this case, for example, the annular portion and the joining plate are different from the above, one by one). become).

[0041]

As described above, according to the present invention described in claim 1, since the sliding contact portion is formed at the center of the end portions of the pair of tightening portions, the tightening force in the left-right direction is biased. Instead, it can act toward the center. In addition, it is possible to consider the number of parts and the ease of assembly.

According to the present invention as set forth in claim 2,
Since the sliding contact portion is formed as a point contact portion or a line contact portion in the front-rear direction with respect to the pair of tapered portions, the tightening force in the left-right direction can be applied toward the center more evenly.

According to the present invention described in claim 3,
Since the bracket is formed in a shape that can be arranged on either the upper side or the lower side of the pair of tightening portions, in addition to the effect of claim 1 or 2, the assembling property and operability of the tightening means can be obtained. Can be improved.

[Brief description of drawings]

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

FIG. 2 is a front view of a battery terminal.

FIG. 3 is a perspective view of a conventional battery terminal.

4 is a cross-sectional view of the bracket of FIG. 3 and a pair of tightening portions.

[Explanation of symbols]

21 Battery terminal 22 Battery terminal body 23 Tightening device (tightening means) 24, 25 annular part 26 Connection part (tightening part) 27, 28 Bonding plate 29 Terminal fixing bolt 30 Upper substrate 31, 35 Battery post insertion hole 32, 36 Engagement part 33 Partly cut off 34 Lower substrate 37 Tightening gap 38 Sliding contact part 39 Cut-off part 40 Contact plate 41 Side wall 42 bracket 43 volts 44 nuts 45 bolt holding spacer 46 board 47 taper 48 bolt insertion hole 49 head 50 bolt holding hole

Claims (3)

[Claims] 1. A battery post insertion hole for inserting a battery post is provided with an annular portion formed in a vertical direction so as to have a partially cut portion, and a tightening gap communicating with the partially cut portion. A battery terminal body having a pair of tightening portions arranged side by side with respect to the annular portion; and a tightening means for bringing the pair of tightening portions closer to each other through the tightening gap to reduce the battery post insertion hole in the diameter reducing direction. The tightening means includes a board having a bolt insertion hole, a bracket having a pair of tapered portions connected to both ends of the board in the left-right direction, and an upper portion of the annular portion which is inserted into the bolt insertion hole. When the screw is operated from above, the screwing state advances, and the bolt and the screw for slidingly contacting the pair of taper portions with the pair of tightening portions. And a sliding contact portion on which a force from the pair of taper portions in sliding contact acts, is formed at the vertical center of the pair of tightening portions in the left-right direction. A battery terminal characterized in that. 2. The battery terminal according to claim 1, wherein the sliding contact portion is formed as a portion that makes point contact or line contact in the front-rear direction with the pair of tapered portions. . 3. The battery terminal according to claim 1, wherein the bracket is formed in a shape that can be arranged on either the upper side or the lower side of the pair of tightening portions. Battery terminal featuring.