JP2006313695A - Battery terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a battery terminal prevented from difference in useful life at both clamping parts by avoiding damage of battery posts. <P>SOLUTION: The battery terminal 10 is provided with an arc-shaped electrode retaining part 16 bent so as to surround a battery post P, a pair of clamping parts 20, 21 each with a slanted face part 23 at an outside face 20A, 21A, and a sliding member 40 shaped like a gate by a top plate part 41 and both side plate parts 44, 45 protruded from both ends of the top plate 41 in parallel. By plugging in tip parts of both clamping parts 20, 21 in an inside space of the sliding member 40, and moving the sliding member 40 toward the battery post along a front-and-rear axis passing the center of the battery post P, the both side plate parts 44, 45 of the sliding member 40 and the slanted face parts 23 are made to slide, and the pair of clamping parts 20, 21 are displaced by the sliding movement with the same displacement volume to uniformly deform the electrode retaining part 16 to taper down from a peripheral direction. <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, one described in Patent Document 1 is known. This is mounted so as to straddle both fastening parts, an arcuate electrode holding part that turns to surround the battery post, a pair of left and right fastening parts that extend from both ends of the electrode holding part to the side. And a substantially portal-type sliding member. One side portion of the sliding member and one of the tightening portions have a slope portion that can slide relative to each other. By approaching the other side, the electrode holder is reduced in diameter and the battery post is tightened.
JP 11-26054 A

  In the above case, since the horizontal component force of the sliding member acts on only one of the tightening portions, there is a disagreement that the tightening force is applied to one side of the battery post. Therefore, one side of the battery post is easily damaged, and there is a possibility that one of the two tightening portions has a longer useful life than the other.

  The present invention has been completed based on the above-described circumstances, and it is an object of the present invention to avoid damage to a battery post and to make no difference in the service life of both tightening portions.

  As a means for achieving the above object, the invention of claim 1 is characterized in that an electrode holding portion that is formed in an arc shape by turning along the outer peripheral surface of the battery post, and parallel to each other from both ends of the electrode holding portion. Formed in a gate shape with a pair of tightening portions having a slope portion on the outer surface thereof, and a top plate portion and both side plate portions projecting parallel to each other from both ends thereof. A sliding member that is mounted so as to straddle the front end portion, the front end portions of the tightening portions are inserted into the inner space of the sliding member, and the sliding member is connected to the battery post. By moving toward the battery post side along the longitudinal axis passing through the center, the both side plate portions and the inclined surface portion of the sliding member are slid, and each of the tightening portions is caused by this sliding operation. The same displacement in the direction of approaching each other By displacing with, characterized in was configured to shrink-deforming the electrode holder.

  According to a second aspect of the present invention, in the first aspect of the present invention, a screw member is disposed above the top plate portion so as to be screwable, and between the screw member and the top plate portion. A pressing member having an inclined pressing surface is disposed, and the pressing member is pushed by operating the screw member to be screwed downward, and the pressing surface is slid on a receiving portion formed on the top plate portion. The sliding member is characterized in that the sliding member is moved toward the battery post along the longitudinal axis by this sliding operation.

<Invention of Claim 1>
The sliding member is inserted into the front ends of both tightening portions, and the sliding member is further moved toward the battery post side along the longitudinal axis passing through the center of the battery post. Then, the inner side surfaces of the both side plate portions of the sliding member and the slope portions of both tightening portions slide, and accordingly, both tightening portions are displaced in the direction approaching each other with the same displacement amount. Thereby, the electrode holding part is uniformly reduced in diameter from the circumferential direction, and the battery terminal is tightened on the inner side surface of the electrode holding part.
According to the first aspect of the present invention, since both of the tightening portions are displaced in the approaching direction with the same displacement amount, a uniform tightening force is applied to the battery post from the circumferential direction. It is possible to avoid damage to the surface or shorten the service life of only one tightening portion.

<Invention of Claim 2>
By screwing the screw member downward, the pressing member disposed between the screw member and the top plate portion is pushed, and the holding surface is slid to the receiving portion formed on the top plate portion accordingly. . Then, the sliding member moves toward the battery post side along the longitudinal axis. According to the invention of claim 2, since the operation direction of the screw member is set parallel to the axial direction of the battery post, interference between the screw member and peripheral parts of the battery post can be avoided, and the operability is improved.

<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 by bending a conductive metal plate material or the like, and includes an electrode holding portion 16, tightening portions 20 and 21, a sliding member 40, and a wire connecting portion 11. Among these, the electrode holding part 16, the fastening parts 20 and 21, and the wire connecting part 11 are integrally formed, and the sliding member 40 is configured as a separate part. In the following description, the front-rear direction will be described with the left side of FIG.

  The battery post P is an electrode projecting from a battery mounted on an automobile, and has a tapered cylindrical shape whose diameter gradually decreases toward the upper end mainly using lead. The wire connection portion 11 has a rectangular tube shape that opens in the front-rear direction, and is housed in a state where the head portion 12A of the connection bolt 12 is restricted in rotation, and the shaft portion 12B of the connection bolt 12 is connected to the wire. The upper surface plate 13 of the part 11 protrudes upward through the bolt hole 15. An electric wire (not shown) or an eyeball terminal connected to the electric wire can be connected to the connecting bolt 12 by tightening a nut. The lower surface plate 14 of the electric wire connecting portion 11 extends rearward and is connected to the electrode holding portion 16 at its extended end 14A.

  As shown in FIG. 1, the electrode holding portion 16 is formed by turning along the outer peripheral surface of the battery post P, and forms an arc along a perfect circle when seen in a plan view. A pair of left and right tightening portions 20 and 21 projecting rearward across the opening 18 are integrally formed on both side ends 17 of the electrode holding portion 16. Both tightening portions 20 and 21 are symmetric with respect to a longitudinal axis (two-dot chain line shown in FIGS. 1 and 5) passing through the center of the battery post P, and are configured as rectangular vertical walls that are cut substantially vertically. Is done.

  As shown in FIG. 2, the upper ends of both tightening portions 20 and 21 are continuous at the same height as the upper end 16 </ b> A of the electrode holding portion 16, and the lower ends of both tightening portions 20 and 21 are It continues in the middle of the height direction (vertical direction). A pair of left and right inclined surface portions 23 are formed at the upper ends of the tightening portions 20 and 21 so as to protrude laterally and project upward about the thickness of the plate at a substantially central portion in the front-rear direction. The inclined surface portion 23 is formed by bending a trapezoidal plate material that is vertically cut at the upper ends of the tightening portions 20 and 21 to the outside at a substantially right angle during the bending process. Moreover, both the slope parts 23 comprise the left-right symmetric shape on both sides of the above-mentioned front-and-rear axis | shaft, and have the taper surface 23A which becomes wide gradually toward the front on the side surface. By sliding the both side plate portions 44 and 45 formed on the sliding member 40 against the tapered surface 23A, both the fastening portions 20 and 21 are connected to the roots (connections to both side ends 17 of the electrode holding portion 16). The portion is bent and deformed inward (direction approaching each other) with the fulcrum as a fulcrum.

  The right side edge 17A shown in FIG. 3 of both side ends 17 of the electrode holding portion 16 is connected to a tightening portion (hereinafter referred to as a first tightening portion 20), and the other tightening portions are referred to as second tightening portions. The connecting portion 26 is integrally formed at a position below the attaching portion 21). As shown in FIG. 4, the upper end of the connecting portion 26 is arranged substantially in parallel with the first slit 24 along the front-rear direction between the lower end of the first tightening portion 20 and the connecting portion 26. The lower end is continuous at the same height as the lower end 16B of the electrode holding portion 16.

  Further, the rear end of the connecting portion 26 is located behind the rear end 20B of the first tightening portion 20, and a guide plate portion 27 is formed that is vertically cut from the rear end region upward. The front edge of the guide plate portion 27 is disposed substantially in parallel with the second slit 25 along the height direction between the front edge of the guide plate portion 27 and the rear edge of the first tightening portion 20. The sliding member 40 is mounted so as to cover the region from the guide plate portion 27 to the distal end portions of the tightening portions 20 and 21, but at this time, the outer surface 27A of the guide plate portion 27 is Among the both side plate portions 44 and 45 of the sliding member 40, the inner side surface 44A of the right side plate portion (hereinafter referred to as the first side plate portion 44 and the other side plate portion as the second side plate portion 45) shown in FIG. Sliding contact is possible. Further, the upper end of the guide plate portion 27 is aligned with the same height as the upper end of the slope portion 23, and the top plate portion 41 formed on the sliding member 40 is connected to the slope portion 23 on the first tightening portion 20 side. A substantially horizontal posture is taken between the first side plate portion 44 and the first side plate portion 44.

  Further, as shown in FIG. 5, a bottom plate portion 28 extends from the lower end of the connecting portion 26 toward the side where the second tightening portion 21 is located. Specifically, the bottom plate portion 28 is formed by connecting the root to the lower surface in the region extending from the rear end of the connecting portion 26 to the position near the front end and extending in a cantilevered manner to the left, and the extending end is the first end. 2 It reaches below the tightening portion 21. In addition, of the extended ends of the bottom plate portion 28, the width direction arranged at the position corresponding to the rear end 21 </ b> B of the second tightening portion 21 is located behind the rear end 21 </ b> B of the second tightening portion 21. An end surface guide portion 30 that protrudes outward on the left side through the stepped portion 29 is formed. The lower end surface 45B of the second side plate portion 45 of the sliding member 40 can be slidably contacted with the upper surface 30A of the end surface guide portion 30.

  A circular bolt insertion hole 31 is formed in the bottom plate portion 28 slightly behind the rear ends 20B and 21B of the tightening portions 20 and 21. A shaft portion 33B of the bolt 33 is passed through the bolt insertion hole 31 from below, and a head portion 33A of the bolt 33 passed is fixed around the hole of the bolt insertion hole 31 on the lower surface of the bottom plate portion 28. . The bottom plate portion 28 is formed by bending an apron-like plate material suspended from the lower end of the connecting portion 26 in the middle of the bending process inward at a substantially right angle.

  The sliding member 40 includes a square top plate portion 41 and a pair of left and right side plate portions 44 and 45 projecting in parallel from both ends thereof. The sliding member 40 has a gate shape as a whole and has the center of the battery post P described above. It is symmetrical with respect to the front and rear axis. The distance between the inner side surfaces 44A and 45A of the both side plate portions 44 and 45 is set to be substantially equal to the distance between the outer side surfaces 20A and 21A of the tightening portions 20 and 21 in the natural state. Therefore, when the front ends of the two fastening portions 20 and 21 are inserted into the inner space of the sliding member 40, the inner side surfaces 44A and 45A of the both side plate portions 44 and 45 and the outer side surfaces of the two fastening portions 20 and 21 are inserted. 20A and 21A are slid, and after that, when both the fastening portions 20 and 21 are inserted deeper by the moving operation of the sliding member 40, the front end edges 44C and 45C of the side plate portions 44 and 45 are It rides on the taper surface 23A, and accordingly, the front ends of the tightening portions 20 and 21 are narrowed and deformed in a direction in which they approach each other.

  The top plate 41 is formed with an engagement hole 42 that opens in a substantially oval shape. A shaft portion 33B of the bolt 33 protruding from the bottom plate portion 28 side is inserted into the engagement hole 42 in a loosely fitted state, and a pressing member 34 penetrating the shaft portion 33B of the bolt 33 is further fitted. ing. The front half of the hole edge 43 of the engagement hole 42 (hereinafter referred to as the receiving portion 43A) is an arc having a smaller radius of curvature than the latter half, and the pressing surface 36A of the pressing member 34 is slidable here. Yes. Further, the sliding member 40 can move forward (center side of the battery post P) along the front-rear axis based on the sliding operation of the pressing surface 36A of the pressing member 34 and the receiving portion 43A. Yes.

  The pressing member 34 has a cylindrical shape as a whole, and has a guide hole 35 through which the shaft portion 33B of the bolt 33 protruding from the bottom plate portion 28 side can be inserted (see FIG. 8). The center of each hole of the guide hole 35, the engagement hole 42, and the bolt insertion hole 31, and the shaft core of the shaft portion 33B of the bolt 33 penetrating these holes are set in a vertical plane including the front and rear axes. The diameter of the guide hole 35 is set to be substantially equal to the outer diameter of the shaft portion 33B of the bolt 33, and the pressing member 34 is slidable in the height direction by being guided by the shaft portion 33B of the bolt 33. Yes. A side surface 36 of the pressing member 34 is a tapered surface that is concentric with the guide hole 35 and has an enlarged diameter upward, and a front half portion of the pressing member 34 is a pressing surface 36A that can be slidably contacted with the receiving portion 43A of the top plate portion 41. . A flange portion 34 </ b> A is formed at the upper end portion of the pressing member 34 so as to project outward in the radial direction from the entire circumference. The flange portion 34A abuts on the upper surface 41A of the top plate portion 41 when the pressing member 34 moves downward along the shaft portion 33B of the bolt 33 in accordance with a screwing operation of the screw member 32 described later. Is responsible for preventing further movement of the The lower surface 32A of the screw member 32 can be attached to the upper surface 34B of the flange portion 34A.

  The screw member 32 is formed of a well-known nut and has substantially the same outer diameter as the flange portion 34A of the pressing member 34. The shaft portion 33B of the bolt 33 passes through the guide hole 35 of the pressing member 34 and protrudes upward, and the screw member 32 is screwed into the protruding portion. The screw member 32 is abutted against the upper surface 34B of the flange portion 34A by the screwing operation, and pushes the pressing member 34 downward along the shaft portion 33B of the bolt 33 by the further screwing operation. When the pressing member 34 is pushed downward, the receiving portion 43A of the top plate portion 41 is relatively displaced upward along the pressing surface 36A of the pressing member 34 so that the sliding member 40 moves forward by its cam action. It has become.

  Next, the operation of this embodiment will be described. First, the front end portions of the tightening portions 20 and 21 and the guide plate portion 27 while the shaft portion 33B of the bolt 33 protruding from the bottom plate portion 28 side is passed through the engagement hole 42 of the top plate portion 41 of the sliding member 40. The sliding member 40 is put on the region extending over from above. Then, the lower end surface 45B of the second side plate portion 45 of the sliding member 40 abuts on the upper surface 30A of the end surface guide portion 30 and the inner side surface 44A of the first side plate portion 44 of the sliding member 40 is the first tightening portion 20. It faces the outer side surface 20A of the tip and the outer side surface 27A of the guide plate portion 27. Subsequently, the pressing member 34 is fitted into the engaging hole 42 of the top plate portion 41 from above while passing the shaft portion 33B of the bolt 33 through the guide hole 35 of the pressing member 34, and the screw member 32 is further inserted into the shaft portion 33B of the bolt 33. Then, the screw member 32 is seated on the upper surface 34B of the flange portion 34A of the pressing member 34 (see FIGS. 5 to 8). Then, the lower end side of the pressing surface 36 </ b> A of the pressing member 34 contacts along the receiving portion 43 </ b> A of the top plate portion 41. Then, the electrode holder 16 is placed on the battery post P from above, and the battery post P is loosely inserted inside the electrode holder 16.

  Next, the screw member 32 is screwed deeply, the pressing member 34 is moved downward along the shaft portion 33B of the bolt 33, and accordingly the receiving portion 43A of the top plate portion 41 is moved upward along the pressing surface 36A of the pressing member 34. The relative displacement is performed, and the sliding member 40 is advanced toward the battery post P along the longitudinal axis. In the movement process of the sliding member 40, the inner side surface 44A of the first side plate portion 44 slides along the outer side surface 20A of the first tightening portion 20, and the lower end surface 45B of the second side plate portion 45 is the end surface guide. It slides along the upper surface of the part 30, and the moving operation | movement of the sliding member 40 is guided by this.

  Further, by screwing the screw member 32, the front ends of the side plate portions 44 and 45 are slid on the tapered surface 23 </ b> A of the inclined surface portion 23 as the sliding member 40 advances. Then, both fastening parts 20 and 21 are displaced in the direction approaching each other with the same amount of displacement, and accordingly, the electrode holding part 16 is reduced in diameter from the circumferential direction with substantially the same amount of displacement. When the front ends of the side plate portions 44 and 45 of the sliding member 40 pass through the tapered surface 23A of the slope portion 23 and the flange portion 34A of the pressing member 34 is stopped against the upper surface 41A of the top plate portion 41, the sliding member The movement operation of 40 is restricted, and the electrode holding portion 16 is in a state where the diameter reduction is most deformed (see FIGS. 9 and 10). As a result, the tightening operation is completed, and a substantially uniform tightening force is applied to the battery post P from the circumferential direction.

According to the present embodiment, both the tightening portions 20 and 21 are displaced in the direction approaching each other with the same displacement amount, and an equal tightening force is applied to the battery post P from the circumferential direction based on the displacement operation. Therefore, it is possible to avoid damage to one side of the battery post P or shortening the useful life of only one tightening portion. Further, since the operation direction of the screw member 32 is set parallel to the axial direction of the battery post P, interference between the screw member 32 and peripheral parts of the battery post P can be avoided, and the operability is improved.
<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) In the above embodiment, a nut is selected as the screw member, and the nut is screwed into the shaft portion of the bolt on the bottom plate portion side from above. However, according to the present invention, on the contrary, the screw member A bolt may be selected, and the bolt may be screwed into the nut on the bottom plate portion side from above.

  (2) In the above embodiment, the screw member is a vertical tightening type in which the screwing direction of the screw member is set parallel to the axial direction of the battery post. However, according to the present invention, the screwing direction of the screw member is A lateral tightening type set in a direction orthogonal to the axial direction may be used.

  (3) The receiving portion in the present invention may be disposed at a position slidable with the pressing surface of the pressing member so as to advance the sliding member toward the battery post, and the first half of the hole edge of the engagement hole. It does not have to be configured as a part.

The top view of the battery terminal before mounting | wearing with a sliding member in Embodiment 1. FIG. Its side view Front view Side cross-sectional view Plan view of the battery terminal after the sliding member is installed Its side view Front view Side cross-sectional view Cross-sectional view of the battery terminal with the sliding member moving forward and sliding between the slope and both side plates Side cross-sectional view

Explanation of symbols

P ... Battery post 10 ... Battery terminal 11 ... Electric wire connecting part 12 ... Connection bolt 16 ... Electrode holding part 17 ... Both side edges 20 ... First fastening part 21 ... Second fastening part 23 ... Slope part 23A ... Tapered surface 28 ... Bottom plate part 32 ... Screw member 40 ... Sliding member 42 ... Engagement hole 44 ... First side plate part 45 ... Second side plate part

Claims (2)

An electrode holding portion formed in an arc shape by turning along the outer peripheral surface of the battery post;
A pair of clamping portions formed to project from both ends of the electrode holding portion in parallel with each other and having an inclined surface on the outer surface;
The top plate portion and the both side plate portions projecting parallel to each other from both ends thereof are formed in a gate shape, and include a sliding member that is mounted so as to straddle the front end portions of the both tightening portions,
By inserting the distal ends of the tightening portions into the inner space of the sliding member and moving the sliding member toward the battery post side along the front-rear axis passing through the center of the battery post, The both side plates of the sliding member and the inclined surface are slid, and by this sliding operation, each of the fastening parts is displaced with the same amount of displacement in the direction approaching each other, and the electrode holding part is contracted. A battery terminal characterized in that it is configured to be deformed in diameter. A screw member is disposed above the top plate portion so as to be screwable, and a pressing member having an inclined pressing surface is disposed between the screw member and the top plate portion,
By screwing the screw member downward, the pressing member is pushed and the pressing surface is slid to a receiving portion formed on the top plate portion, and the sliding member is moved forward and backward by this sliding operation. The battery terminal according to claim 1, wherein the battery terminal is configured to move along the axis toward the battery post side.

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