JP2006318751A - Battery terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a battery terminal which can be connected to a battery post with reduced operation force. <P>SOLUTION: The battery terminal 10 has an arc-shaped and plate-shaped electrode holding part 11 curved so as to surround a side face of the battery post P, and a plate-shaped displacing part 20 and a holding part 29 extending over one end to the other end of a part clamping the electrode holding part 11 while encircling a side face of the electrode holding part. The displacing part 20 engages with a nut 32 at its rear end side, and front end side of the displacing part is slanted downwards with the rear end part as a fulcrum by screwing the nut 32 in axial direction of the battery post P. The holding part 29 is arranged toward battery post P side which is front end side of the displacing part 20, and thrusted into the side face of the battery post P by the slanting movement of the displacing part 20. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a battery terminal.

As a battery terminal connected to a battery of an automobile or the like, a battery terminal described in Patent Document 1 is known. This is assembled to an arc-shaped electrode holding portion that turns so as to surround the battery post, a pair of engagement pieces that extend in opposite directions from both ends of the electrode holding portion, and the electrode holding portion. A tightening member that deforms in the diameter-reducing direction and a bolt and a nut that apply a tightening force to the tightening member are provided.
JP2003-151651A

  The battery terminal described above is intended to reduce the diameter of the electrode holding portion via the tightening member by operating force when the bolt and the nut are screwed together, thereby connecting the electrode holding portion and the battery post. . Therefore, it is difficult to transmit the tightening force by the tightening member directly to the battery post, and an excessive operation force is required, resulting in a work burden.

  The present invention has been completed based on the above-described circumstances, and an object thereof is to reduce an operation force when connected to a battery post.

  As a means for achieving the above object, the invention of claim 1 sandwiches the electrode holding part between a plate-like electrode holding part arranged so as to cover at least one end side of the side surface of the battery post. From one end to the other end, it extends around the electrode holding portion, engages with a screw member on the other end side, and the screw member is screwed along the axial direction of the battery post, so that the other end A plate-like displacement portion that tilts in the direction of pushing down with the one end as a fulcrum, on the other end side of the displacement portion and on the battery post side, and with the tilting operation of the displacement portion, It is characterized in that it includes a pressing portion that presses the side surface between the opposing inner surfaces of the electrode holding portions.

The invention of claim 2 is characterized in that, in the invention of claim 1, the tip of the pressing portion is in a state of being bitten into the side surface of the battery post upon completion of the displacement operation.
According to a third aspect of the present invention, in the first or second aspect of the present invention, the pressing portion has a pressing body that is bent toward the base end side of the battery post and can be brought into contact with the side surface of the battery post. The front end position of the pressing body is set closer to the base end of the battery post than the one end position of the displacement part when the displacement part is arranged along a horizontal direction orthogonal to the axial direction of the battery post. It has the characteristics where it is done.

  According to a fourth aspect of the present invention, in the method according to any one of the first to third aspects, the screw member is constituted by a nut that can be screwed into a bolt, and the pressing portion is completed when the tilting operation of the displacement portion is completed. The other end side of the displacement part is bent and deformed with a contact point between the tip of the part and the side surface of the battery post as a fulcrum, and the nut in a direction in which the female screw of the nut and the male screw of the bolt are brought into close contact by elastic reaction force It is characterized in that is pressed.

<Invention of Claim 1>
By performing the screw operation of the screw member along the axial direction of the battery post, the displacement portion is tilted in the direction of pushing down the other end with one end thereof as a fulcrum. Then, in accordance with this tilting operation, the battery post is pressed between the inner surface of the electrode holding portion facing the pressing portion, so that one end of the displacement portion is a fulcrum, and the engagement position with the screw member on the other end side of the displacement portion The lever is configured with the point of action as the point of action and the contact position between the pressing portion and the battery post, and the operating force can be reduced. Further, since the pressing portion directly acts on the battery post, the connection is ensured.

<Invention of Claim 2>
Since the holding portion bites into the battery post, the connection to the battery post is more reliable.
<Invention of Claim 3>
When the displacement part tilts with one end thereof as a fulcrum, the tip position of the holding body draws a turning locus centering on one end of the displacement part. In this case, since the distal end position of the holding body is set closer to the base end of the battery post than the one end position of the displacement portion when the displacement portion assumes the horizontal posture, the same height as the one end position of the displacement portion is set. Therefore, the amount of displacement in the horizontal direction can be increased by that amount (see FIG. 5). Therefore, when the pressing body is applied to the battery post, the screwing amount of the screw member can be reduced.

<Invention of Claim 4>
When the tilting operation of the displacement portion is completed, the other end side of the displacement portion is bent and deformed with the contact portion between the tip portion of the holding portion and the side surface of the battery post as a fulcrum, and the elastic reaction force causes the female screw of the nut and the male screw of the bolt to Since the nut is pressed in the direction in which the nut comes into close contact, the nut can be prevented from coming off.

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS. The battery terminal 10 of the present embodiment is formed of a conductive metal plate material, and is attached to the battery post P and forward from the front end of the electrode holder 11 (corresponding to the left side in FIG. Is provided with a base portion 15 extending in the front-rear direction) and a displacement portion 20 that is attached to the electrode holding portion 11 and can tighten the electrode holding portion 11. The electrode holding part 11 and the base part 15 are integrally formed, and the displacement part 20 is configured as a separate article.

  The battery post P is an electrode projecting from a battery mounted on an automobile or the like, and is formed in a tapered cylindrical shape whose diameter gradually decreases toward the upper end side mainly using lead.

  As shown in FIG. 1, the electrode holding portion 11 has an arc shape that turns so as to surround the side surface of the battery post P, and is open over the entire area in the vertical direction on the front side where the base portion 15 is disposed. Part 12 is formed. A first slit 13 that divides the front half region of the electrode holding portion 11 in the height direction is formed at a substantially central portion in the vertical direction of the electrode holding portion 11. One end of the first slit 13 opens at both side edges of the opening 12, and a pair of left and right sides are symmetrically arranged with the opening 12 interposed therebetween. Therefore, the upper region sandwiching the first slit 13 in the electrode holding portion 11 has a structure that is more easily deformed inward and outward than the lower region integrated with the base portion 15.

On the rear surface side of the electrode holding portion 11, a retaining protrusion 14 is formed that is bent backward between a pair of left and right second slits 13 </ b> B cut on both sides. The retaining projection 14 has a rectangular block shape and projects backward. A receiving portion 22 of a displacement portion 20 to be described later can be fitted into the retaining protrusion 14.
The base portion 15 has a box shape with the front-rear direction opened, and is formed to protrude forward from the lower end portion of the front surface of the electrode holding portion 11. Specifically, the base portion 15 is connected to the lower end portions on both side edges of the opening portion 12 of the electrode holding portion 11 and is arranged to face each other so as to stand up and down, and is bent at right angles from the lower ends of the both side plates 16 to the inside. A pair of left and right lower plates 18 whose edges are separated from each other, and a pair of left and right upper plates 17 which are bent at right angles from the upper ends of both side plates 16 and abut the edges in the front-rear direction. Become.

  The abutting edge of the upper plate 17 is set at a substantially central portion in the width direction of the base portion 15, and the semicircular arc portion 19 </ b> A opening at each end edge matches with this, whereby the base portion of the shaft portion 31 </ b> B of the bolt 31 is made. A substantially circular bolt insertion hole 19 that can be inserted is formed. Further, as shown in FIG. 3, the inside of the base portion 15 is a support space for accommodating the head portion 31A of the bolt 31 and supporting the bolt 31 in an upright state. Therefore, the bolt 31 is fixed in the support space in a state where the head portion 31A is sandwiched between the upper plate 17 and the lower plate 18, and the shaft portion 31B is directed upward from the bolt insertion hole 19. It is arranged in a protruding state.

  As shown in FIG. 1, the displacement portion 20 has a generally front rear circular shape as a whole, is formed on the rear end side (one end side in the present invention), and is attached to the electrode holding portion 11 from above. Part 21 and a substantially rectangular plate-like arm part 25 which is formed on the front end side (the other end side in the present invention), extends forward from the front end of the ring part 21, and is arranged on the base part 15 so as to be opposed thereto. .

  The inner diameter dimension of the ring portion 21 is set to a size between the outer diameter dimension on the distal end side and the outer diameter dimension on the proximal end side of the electrode holding portion 11, and fits in the middle of the electrode holding portion 11 in the vertical direction. It is possible to wear. In addition, the ring portion 21 is formed with a receiving portion 22 at a position slightly deviated in the circumferential direction from the rearmost end position. The receiving portion 22 has a substantially gate-shaped frame shape that bulges outward, and after the retaining protrusion 14 is fitted inside the receiving portion 22, the receiving portion 22 is shifted in the circumferential direction and set to the rearmost end position of the ring portion 21. The retaining protrusion 14 is locked in the adjacent region. Since the adjacent region of the receiving portion 22 and the retaining projection 14 are engaged with each other in the direction in which the displacement portion 20 is removed, the displacement portion 20 is prevented from coming off from the electrode holding portion 11.

In the substantially central portion of the arm portion 25, a bolt through hole 26 having a long hole shape is formed in the front-rear direction to allow the shaft portion 31B of the bolt 31 protruding from the base portion 15 side to pass through in a loosely fitted state. The front end portion of the shaft portion 31B of the bolt 31 protrudes upward from the bolt through hole 26, the nut 32 is screwed into the front end portion, and the seat surface 32A of the nut 32 is the bolt through hole on the upper surface of the arm portion 25. It engages with 26 hole edges.
On both side ends of the arm portion 25 in the width direction, excessive tightening prevention pieces 27 for preventing the nut 32 from being excessively tightened to the bolt 31 are provided. The over-tightening prevention piece 27 is formed by bending both sides of the arm portion 25 in the width direction downward.

  Now, a tongue-shaped pressing portion 29 is formed at the rear end of the arm portion 25. The pressing portion 29 includes a root portion continuous in the planar direction of the arm portion 25 between a pair of left and right cutout portions 28 cut on both sides, and a pressing body 30 formed by bending downward from the root portion. As a whole, it is substantially L-shaped. The pressing portion 29 can be bent and deformed with its base portion as a fulcrum, and the pressing main body 30 faces the ring portion 21 through the opening 12 described above.

  Further, the holding body 30 can be brought into contact with the side surface of the battery post P, and the tip position of the holding body 30 is displaced when the displacement portion 20 is disposed along the horizontal direction orthogonal to the axial direction of the battery post P as a whole. It is set below the rear end position of the portion 20 (one end position in the present invention).

  Here, when the tightening force of the nut 32 is not acting on the arm portion 29, the adjacent region of the receiving portion 22 corresponding to the rear end position of the displacement portion 20 is hooked on the retaining protrusion 14, and The arm portion 25 is connected to the same height as the latching position 23 with a substantially horizontal posture (see FIG. 3). On the other hand, when the tightening force of the nut 32 acts on the arm portion 25, the arm portion 25 tilts downward with the latching position 23 between the adjacent region of the receiving portion 22 and the retaining projection 14 as a fulcrum. (See FIG. 4). Then, as the arm portion 25 is tilted, the pressing portion 29 is rotated about the above-described latching position 23, whereby the battery post is placed between the pressing main body 30 and the inner surface of the rear end of the electrode holding portion 11 facing the pressing body 30. The side of P is pressed down.

  Next, the operation of this embodiment will be described. First, with respect to the base portion 15 in the unfolded state, the head 31A of the bolt 31 is placed on the center of the upper surface of the lower plate 18, the bolt 31 is raised, the both side plates 16 are raised in this state, and then the raised end Is bent inward to form the upper plate 17, and the base portion of the shaft portion 31B of the bolt 31 is fitted inside the bolt insertion hole 19 formed in accordance with the bending operation.

  Subsequently, the retaining projection 14 is fitted into the receiving portion 22 in a state where the arm portion 25 is lifted upward, and in this state, the ring portion 21 is shifted in the circumferential direction and the retaining projection 14 is adjacent to the receiving portion 22. Hang up. Further, the arm portion 25 is pulled down to have a substantially horizontal posture, and the tip portion of the shaft portion 31B of the bolt 31 is fitted into the bolt through hole 26. When the displacement portion 20 is thus set in a horizontal posture (the position of the displacement portion 20 in this state is set as the initial position), the nut 32 is then loosely screwed into the tip portion of the shaft portion 31B of the bolt 31 protruding from the bolt through hole 26. .

  Next, the electrode holder 11 is placed on the battery post P from above, and the rear surface of the pressing body 30 is brought into contact with the side surface of the battery post P through the opening 12. In this state, the nut 32 is screwed deeply into the bolt 31. Then, the arm portion 25 tilts downward with the above-described latching position 23 as a fulcrum, and the tip portion 30A of the presser body 30 bites into the side surface of the battery post P along with the tilting operation. Then, when the nut 32 is screwed in at a normal depth, the arm portion 25 is inclined with a predetermined slope downward to the left, and the tip portion 30A of the presser body 30 bites into the side surface of the battery post P at a predetermined depth. A reliable connection with can be taken. At this time, even if the nut 32 is forced to be screwed in, the excessive tightening prevention piece 27 comes into contact with the base portion 15 and prevents further screwing operation, so that excessive tightening by the nut 32 can be prevented.

  FIG. 5 is a schematic diagram for explaining the displacement operation of the pressing portion 29. FIG. 5B is an enlarged view of a region from the rear end position of the displacement portion 20 to the pressing portion 29 via the ring portion 21 in the present embodiment. On the other hand, FIG. 5A shows a reference example using the comparative pressing portion 40 arranged on the extension shaft of the ring portion 21 without bending in the middle, and corresponds to the above-described FIG. 5B. It is a figure to do.

  Here, the nut 32 is tightened with a fixed screwing amount, and the pressing portion 29 and the comparison pressing portion 40 are rotated at the same rotation angle Z with the rear end position of the displacement portion 20 as a fulcrum. Then, in the case of FIG. 5 (A), the comparison pressing portion 40 is set to the same height as the rear end position of the displacement portion 20 before the displacement operation, and the front end portion 40A is horizontal. Whereas the displacement amount X in the direction does not increase so much, in the case of FIG. 5B, the distal end portion 30A of the presser body 30 is lower than the rear end position of the displacement portion 20 before the displacement operation, that is, the rotation. Due to the fact that it is set ahead of the direction, the displacement amount Y in the horizontal direction of the tip portion 30A becomes larger than that in FIG. Accordingly, if a sufficient pressing force against the battery post P can be obtained by the amount of displacement X in the horizontal direction of the distal end portion 40A of the comparison pressing portion 40, in the case of this embodiment, the rotation is smaller than the rotation angle Z. What is necessary is just to perform the screw operation of the nut 32 by a moving angle, that is, since the screwing amount of the nut 32 can be set small, a work burden can be reduced.

  As described above, according to the present embodiment, by performing the screw operation of the nut 32 along the axial direction of the battery post P, the displacement portion 20 tilts in the direction of pushing down the arm portion 25 with the rear end as a fulcrum. Since the holding portion 29 bites into the side surface of the battery post P with the tilting operation, the rear end of the displacement portion 20 is a fulcrum, the engagement position between the arm portion 25 and the nut 32 is a power point, and the holding portion 29 A lever having a contact position with the battery post P as an action point is configured, and the operating force can be reduced. Further, since the pressing portion 29 acts directly on the battery post P and bites into the side surface thereof, the connection is more reliable.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention, and further, within the scope not departing from the gist of the invention other than the following. Various modifications can be made.

  (1) According to the present invention, upon completion of the displacement operation of the displacement portion, the arm portion is bent and deformed with the contact position between the front end portion of the holding body and the side surface of the battery post as a fulcrum, and the nut is caused by the elastic reaction force. The nut may be pressed in the direction in which the female screw and the male screw of the bolt are in close contact with each other. As a result, the nut can be prevented from being inadvertently rotated and loosened. In the case of the above embodiment, since the arm portion has a structure that is difficult to bend and deform due to the provision of the over-tightening prevention piece, the over-tightening prevention piece is abolished or the over-tightening prevention piece. It is preferable to provide a structure that can be easily bent and deformed by providing at a position other than the arm portion. Of course, if the arm portion can be bent and deformed in a state where the over-tightening prevention piece is provided, it is not necessary to abolish the over-tightening prevention piece.

(2) In the above embodiment, the displacement portion is composed of the ring portion and the arm portion. However, according to the present invention, the displacement portion extends so as to wrap around the electrode holding portion from the rear end position to the front end position. Any mode may be used. Therefore, it is not necessary to set the diameter dimension of the ring portion in accordance with the diameter dimension of the electrode holding portion, and a semicircular arc portion that wraps around the side surface of the electrode holding portion may be provided instead of the ring portion.
(3) In the above embodiment, the pressing piece of the pressing portion bites into the side surface of the battery terminal. However, according to the present invention, the pressing piece of the pressing portion is between the inner surface of the opposing electrode holding portion. It is sufficient that the connection is made by pressing the side of the battery terminal.
(4) In the above embodiment, the tip portion of the pressing portion is a pressing piece that bends from the root portion. However, according to the present invention, even if the tip portion of the pressing portion extends straight over the entire length. Good.
(5) In the above embodiment, the electrode holding portion is formed to bend so as to surround the side surface of the battery post. However, according to this embodiment, the electrode holding portion presses the battery post. It is only necessary to be disposed at a position where the pressing force can be received when the battery post is pressed, that is, it may be disposed so as to cover the rear end surface of the battery post.

1 is an exploded perspective view of the battery terminal according to the first embodiment. Battery terminal perspective view Side sectional view of the battery terminal before the displacement part is displaced Side cross-sectional view of the battery terminal after the displacement part is displaced Schematic for explaining displacement operation of holding part

Explanation of symbols

P ... Battery post 10 ... Battery terminal 11 ... Electrode holding part 15 ... Base part 20 ... Displacement part 25 ... Arm part 26 ... Bolt through hole 27 ... Over-tightening prevention piece 29 ... Holding part 30 ... Holding body 31 ... Bolt 32 ... nut

Claims (4)

A plate-like electrode holding portion arranged to cover at least one end side of the side surface of the battery post;
From one end to the other end sandwiching the electrode holding portion, it extends around the electrode holding portion, engages with a screw member on the other end side, and the screw member extends along the axial direction of the battery post. A plate-like displacement portion that tilts in a direction to push down the other end side with the one end as a fulcrum by a screw operation;
A pressing portion that is on the other end side of the displacement portion and on the battery post side and presses the side surface of the battery post between the opposing inner surfaces of the electrode holding portions in accordance with the tilting operation of the displacement portion; A battery terminal characterized by comprising. 2. The battery terminal according to claim 1, wherein the front end portion of the pressing portion bites into a side surface of the battery post when the displacement operation is completed. The holding portion has a holding body that is bent toward the base end side of the battery post and can come into contact with the side surface of the battery post. The distal end position of the holding body is such that the displacement portion is aligned with the axial direction of the battery post. 3. The battery terminal according to claim 1, wherein the battery terminal is set closer to a base end of the battery post than an end position of the displacement portion when arranged along a horizontal direction orthogonal to the battery. . The screw member is constituted by a nut that can be screwed with a bolt,
When the tilting operation of the displacement portion is completed, the other end side of the displacement portion is bent and deformed with a contact point between the tip end portion of the pressing portion and the side surface of the battery post as a fulcrum. The battery terminal according to any one of claims 1 to 3, wherein the nut is pressed in a direction in which the male screw of the bolt is in close contact.

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