JP4668565B2 - Battery terminal and spacer connection parts for battery terminal - Google Patents

Description

The present invention relates to a battery terminal interposed between a battery and a power supply wire, and a spacer connecting component for the battery terminal used in the battery terminal .

  A nut including a battery terminal body, a bending bolt that penetrates the tightening portion of the battery terminal body, a nut that is screwed into a threaded portion of the bending bolt, and a spacer that is interposed between the tightening portion and the nut. As a battery terminal that can be tightened, a technique disclosed in Patent Literature 1 previously proposed by the applicant of the present application is known.

The bending bolt of the battery terminal disclosed in the following Patent Document 1 is formed such that the threaded portion is bent with respect to the bolt center axis. The spacer has a bolt insertion hole for the bending bolt and is formed so that a seating surface for contacting the nut becomes an inclined surface orthogonal to the axis of the threaded portion of the bending bolt.
JP-A-10-223203 (Page 4, FIGS. 9-14)

  In the above prior art, nut tightening from diagonally above is possible, so judging from the crowded situation in the engine room in recent years, tightening tools and batteries are more effective than tightening nuts from the side of the battery terminal. Interference with peripheral parts can be easily avoided. Therefore, there is an effect that workability can be improved. However, the above prior art has the following problems. In other words, since the degree of avoidance of the interference differs depending on the vehicle type and grade, if further tightening of the nut from the diagonally upper side is required, it is necessary to newly install a bending bolt and a spacer, and as a result, There is a problem that parts management becomes complicated and costs increase.

The present invention has been made in view of the above-described circumstances, and provides a battery terminal and a spacer connecting component for the battery terminal that can minimize the increase in cost while minimizing component management. The task is to do.

The battery terminal of the present invention according to claim 1, which has been made to solve the above-described problems, includes a battery terminal body in which a clamping gap is provided and a pair of opposing clamping parts are formed.
A bending bolt that penetrates the tightening portion and a screw portion bends with respect to a bolt central axis; and
A nut screwed on the threaded portion,
Be one which is interposed between the clamping portion and the nut has a bolt insertion hole for inserting the bending bolt has an opening of the bolt insertion hole, the center axis of the threaded portion A spacer having a regular polygonal contact surface orthogonal to the contact surface and a contact inclined surface inclined with respect to the corresponding contact surface, and forming the opening of the corresponding contact inclined surface in an oval shape ;
A battery terminal comprising:
When the bolt insertion hole on the side of the contact inclined surface of the spacer is formed in an oval shape, and instead of the bending bolt, another bending bolt in which the screw portion is bent rather than the bending bolt is used. The rotation direction of each spacer in a state where the contact inclined surfaces are in contact with each other by a spacer detent formed on the periphery of the contact inclined surface of each spacer. It is characterized by being interposed between the nuts so as to restrict the movement of the nut.

According to a second aspect of the present invention, there is provided a spacer connecting component having a regular polygonal shape having a bolt insertion hole for inserting a bent bolt whose screw portion is bent with respect to the bolt central axis, and an opening of the bolt insertion hole. Two spacers having a contact surface and a contact inclined surface inclined with respect to the corresponding contact surface, and the opening of the corresponding contact inclined surface is formed in an oval shape . A spacer anti-rotation portion is formed on the periphery, and the spacers are connected so as to restrict movement of the spacers in the rotational direction in a state where the contact inclined surfaces are in contact with each other.

  According to the present invention having the above-described features, when a nut tightening from diagonally upward as in the prior art is sufficient, one spacer is used, and when further tightening of the nut from diagonally upward is required. It is possible to cope by connecting spacers having the same shape. At this time, the only new parts are bent bolts. The connected spacers are prevented from rotating when the nut is tightened by the spacer detents. In addition, the presence of the spacer detent portion makes it possible to grasp the spacer seat surface (contact inclined surface) without visual inspection. The spacer detent portion contributes to improvement in workability.

According to the present invention described in claims 1 and 2 , there is an effect that component management can be made as simple as possible. In addition, there is an effect that an increase in cost can be minimized.

Hereinafter, description will be given with reference to the drawings.
1A and 1B are diagrams showing an embodiment of a battery terminal according to the present invention, where FIG. 1A is a perspective view and FIG. 1B is a cross-sectional view. 2 is an exploded perspective view of the battery terminal, FIG. 3 is a perspective view of the spacer, and FIG. 4 is a cross-sectional view of the battery terminal when only one spacer is used.

  1 and 2, reference numeral 1 indicates a conductive battery terminal of the present invention attached to a battery post of a battery (not shown). The battery terminal 1 of the present invention is for connecting a power supply wire (not shown) so that power can be supplied from the battery. The battery terminal main body 2 and a pair of fastening portions of the battery terminal main body 2 are provided. 3, a bending bolt 4 penetrating through 3, a nut 6 screwed into a threaded portion 5 of the bending bolt 4, and a spacer connecting component 8 interposed between the tightening portion 3 and the nut 6 and including two spacers 7. Configured. Hereinafter, each component will be described.

  The battery terminal body 2 is manufactured by punching and bending a conductive metal plate. Such a battery terminal main body 2 is provided with an annular portion 9, a pair of tightening portions 3, and a wire connection portion (not shown). The annular portion 9 is a portion wound around the battery post, and is formed in a shape in which a part thereof is divided in order to provide the tightening gap 10. That is, the annular portion 9 is formed in a shape as shown in the figure that is substantially C-shaped in plan view.

  The pair of tightening portions 3 are formed so as to be continuous with the partially cut portions of the annular portion 9. The pair of fastening portions 3 are arranged and formed so as to face each other with the fastening gap 10 interposed therebetween. A bending bolt 4 passes through the pair of tightening portions 3, and a spacer connecting component 8 is attached. When the interval between the pair of tightening portions 3 is narrowed, the annular portion 9 is reduced in diameter.

  Each fastening portion 3 has a flat vertical wall 11 and a pair of detents 12 protruding outward from both upper and lower sides of the vertical wall 11 and has a substantially U-shape as illustrated. Is formed. The vertical wall 11 is formed to have a flat surface. A through hole 13 for the bending bolt 4 is formed at the center of the vertical wall 11.

  The pair of anti-rotation portions 12 are formed in a shape that hooks the head 14 of the bending bolt 4 so that the bending bolt 4 does not rotate when the nut 6 is tightened. In this embodiment, one of the rotation preventing portions 12 of the pair of tightening portions 3 is used as a portion for hooking the head 14 of the bending bolt 4, and the other rotation preventing portion 12 is a positive portion of the spacer connecting component 8 described later. It is formed as a receiving part for hooking the polygonal part 15. In addition, 12a is attached | subjected to the direction which functions as a rotation stop of the bending volt | bolt 4, and 12b is attached to the direction which functions as a receiving part.

  The bending bolt 4 has a head portion 14 having a square cross section, a cylindrical central shaft portion 16 protruding from the center of the head portion 14, and a screw portion 5 continuous to the central shaft portion 16. The threaded portion 5 is formed in the shape shown in the figure so as to be bent with respect to the central shaft portion 16 (in other words, with respect to the bolt central shaft). The head portion 14 is formed so that all the widths W1 thereof are equal. The head 14 is dimensioned so that the one surface width W1 matches the distance between the pair of detent portions 12 (12a) of the tightening portion 3. The screw part 5 is not particularly limited, but is formed to be bent, for example, by 60 ° in this embodiment. Since the bending bolt 4 has a square cross section in the present embodiment, the direction of the screw portion 5 is changed when the bending bolt 4 is rotated every 90 °.

  1 to 4, the spacer connecting component 8 is configured by combining two block spacers 7 (combining spacers 7 having the same shape). Specifically, each of the contact inclined surfaces 17 (described later) of the two spacers 7 is connected to be in contact with each other. Each spacer 7 includes a bolt insertion hole 18 for inserting the bending bolt 4, a contact surface 21 and a contact inclined surface 17 having openings 19 and 20 of the bolt insertion hole 18, and a spacer detent portion 22. have.

  The contact surface 21 is a flat surface and is formed in a square shape. Since the contact surface 21 has a square shape, the one surface width W2 is formed to be equal. The abutment surface 21 is dimensioned so that the one-surface width W2 matches the distance between the pair of detent portions 12 (12b) of the tightening portion 3. The contact surface 21 of the spacer 7 on the tightening portion 3 side is used as a surface that contacts the vertical wall 11 of the tightening portion 3. Further, the contact surface 21 of the spacer 7 on the nut 6 side is used as a seat surface for contacting the nut 6 (the same spacer 7 is used, but the function differs depending on the arrangement).

  The contact inclined surface 17 is formed to be inclined with respect to the contact surface 21. The contact inclined surface 17 is a flat surface and is formed in a rectangular shape. The portion where the contact inclined surface 17 exists is formed so that the thickness from the contact surface 21 gradually increases from one to the other. The contact inclined surface 17 is formed so as to function as a seat surface for contacting the nut 6 when one spacer 7 is used without using the spacer connecting component 8 (see FIG. 4). Yes. This will be described later with reference to FIG.

  In this embodiment, the portion where the contact surface 21 of the spacer 7 on the tightening portion 3 side is present is set as a regular polygon portion 15. As can be seen from the figure, the regular polygonal portion 15 has a shape similar to the head 14 of the bending bolt 4, and, like the bending bolt 4, the orientation of the contact inclined surface 17 when rotated every 90 °. (The mounting direction of the spacer connecting part 8 can be changed to an easy working direction. The spacer connecting part 8 has a structure in which the mounting direction can be changed in the rotational direction with respect to the bolt central axis. Have). In addition, since the contact surface 21 is a square shape, the regular polygonal part 15 has four outer peripheral surfaces. However, instead of this, a regular polygon having six or eight faces may be formed.

  The bolt insertion hole 18 is formed so that the opening 19 on the contact surface 21 side is circular. The bolt insertion hole 18 is formed so that the opening 20 on the abutting inclined surface 17 side has an oval shape. The length of the bending bolt 4 is set so that the tip end side of the screw portion 5 protrudes from the contact surface 21 of the spacer 7 on the nut 6 side when passing through the spacer connecting component 8 through each bolt insertion hole 18. Yes. The bending bolt 4 is formed so that the screw portion 5 is orthogonal to the contact surface 21 of the spacer 7 on the nut 6 side.

  The spacer detent portion 22 is a portion for restricting the movement in the rotational direction of each spacer 7 of the spacer connecting component 8 that is connected in a state where the contact inclined surfaces 17 are in contact with each other. Two are formed in the diagonal direction of the peripheral edge of the contact inclined surface 17. In addition, the shape and arrangement | positioning of the spacer detent | locking part 22 in a figure shall be an example.

  In the above configuration, the battery terminal 1 according to the present invention is assembled by first inserting the bending bolt 4 into the tightening portion 3 of the battery terminal body 2 and then connecting the spacer connecting component 8 combining the two spacers 7 to the bending bolt 4. It is attached in such a state that it is inserted, and finally, the nut 6 is screwed into the threaded portion 5 of the bending bolt 4 to complete. Then, when the annular portion 9 of the battery terminal body 2 is inserted into the battery post and the nut 6 is started to be tightened on the seat surface of the spacer connecting component 8 (the contact surface 21 of the spacer 7 on the nut 6 side), the tightening force Acts in the direction of the bolt center axis of the bending bolt 4 and moves in a direction in which the pair of tightening portions 3 are close to each other. Thereby, the diameter of the annular portion 9 is reduced, and the connection of the battery terminal 1 of the present invention to the battery post is completed.

  Here, the battery terminal 31 when only one spacer 7 is used will be described with reference to FIG. In addition, the same code | symbol shall be attached | subjected to the same structural member as the above-mentioned.

  In FIG. 4, the battery terminal 31 includes a battery terminal main body 2, a bending bolt 32 penetrating the pair of tightening portions 3 of the battery terminal main body 2, a nut 6 screwed into a screw portion 33 of the bending bolt 32, and a tightening portion. 3 and one spacer 7 interposed between the nut 6 and the nut 6.

  The bending bolt 32 includes a head portion 34 (same as the head portion 14) having a square cross section, a cylindrical central shaft portion 35 protruding from the center of the head portion 34, and a screw portion continuous to the central shaft portion 35. 33, and the threaded portion 33 is formed in the shape shown in the figure so as to bend with respect to the central shaft portion 35 (in other words, with respect to the bolt central shaft). The screw portion 33 is not particularly limited, but is formed to be bent, for example, by 30 ° in this embodiment. Further, the screw portion 33 is formed so as to be orthogonal to the contact inclined surface 17 of the spacer 7 (the seat surface with respect to the nut 6).

  In the above configuration, the battery terminal 31 is assembled in such a manner that the bending bolt 32 is first inserted into the tightening portion 3 of the battery terminal body 2, the spacer 7 is then inserted into the bending bolt 32, and finally the nut 6 Is completed by screwing into the threaded portion 33 of the bending bolt 32. Then, when the annular portion 9 of the battery terminal body 2 is inserted into the battery post and the nut 6 is started to be tightened on the contact inclined surface 17 (seat surface) of the spacer 7, the tightening force is the center of the bolt of the bending bolt 32. It acts in the axial direction and moves in a direction in which the pair of tightening portions 3 are close to each other. Thereby, the diameter of the annular portion 9 is reduced, and the connection of the battery terminal 31 to the battery post is completed.

  In the case where the nut 6 can be tightened from an obliquely upward direction as in the prior art, the battery terminal 31 using one spacer 7 and the bending bolt 32 can be used. When it is necessary to tighten the nut 6 from obliquely above, the battery terminal of the present invention using the spacer connecting component 8 formed by connecting the spacers 7 having the same shape and the bending bolt 4 is used. 1 can respond.

  As described above with reference to FIGS. 1 to 4, the battery terminal 1 of the present invention uses the existing spacer 7 without newly providing a spacer, so that parts management is not as complicated as possible. can do. Further, an increase in cost can be minimized.

  Next, another example of the battery terminal body will be described with reference to FIG. In the present invention, not only the battery terminal body 2 described above, but also a battery terminal body 44 having an annular portion 41, a pair of tightening portions 42, and a wire connecting portion 43 as shown in FIG. It is also possible to use a battery terminal main body 48 having an annular portion 45, a pair of tightening portions 46, and a wire connecting portion 47 as shown in FIG. 5 (b).

  The bending bolt 4 is inserted into the pair of tightening portions 42 (or 46) of the battery terminal main body 44 (or 48), and the spacer connecting component 8 is attached in such a state that the bending bolt 4 is inserted. Assembling of the battery terminal is completed by screwing 6 into the threaded portion 5 of the bending bolt 4.

  Next, another example spacer and receiving portion will be described with reference to FIG. (A) is a perspective view of the spacer used as another example, (b) is a perspective view of the receiving part corresponding to the spacer of (a).

  In FIG. 6 (a), a regular polygonal portion 15 'is formed on the contact surface 21' of the spacer 7 'so as to protrude. The regular polygonal portion 15 ′ has a regular hexagonal shape and is formed at the periphery of the bolt insertion hole 18 ′. On the other hand, as shown in FIG. 6 (b), a regular hexagonal receiving portion 12b 'is formed in the through hole 13' of the tightening portion 3 '. Such a regular polygon part 15 'and the receiving part 12b' can produce the same action as described above (not just a regular hexagonal shape, but a regular triangular shape, a regular pentagonal shape, a regular hexagonal shape, a regular heptagonal shape). Shape ... is also possible). Although not shown in particular, the same action as described above can also be produced by forming a regular polygonal part protruding from the periphery of the through hole of the tightening part and forming a receiving part in a concave shape on the contact surface of the spacer.

  In addition, it goes without saying that the present invention can be variously modified without departing from the spirit of the present invention.

It is a figure which shows one Embodiment of the battery terminal of this invention, (a) is a perspective view, (b) is sectional drawing. It is a disassembled perspective view of a battery terminal. It is a perspective view of a spacer. It is sectional drawing of a battery terminal at the time of using only one spacer. (A), (b) is a perspective view which shows the other example of a battery terminal main body. (A) is a perspective view of the spacer used as another example, (b) is a perspective view of the receiving part corresponding to the spacer of (a).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Battery terminal 2 Battery terminal main body 3 Fastening part 4 Bending bolt 5 Screw part 6 Nut 7 Spacer 8 Spacer connection component 9 Annular part 10 Fastening gap 11 Vertical wall 12 Non-rotating part 12a Non-rotating part 12b Non-rotating part functioning as a receiving part DESCRIPTION OF SYMBOLS 13 Through-hole 14 Head 15 Regular polygon part 16 Center axis part 17 Contact | inclination inclined surface 18 Bolt insertion hole 19, 20 Opening part 21 Contact surface 22 Spacer detent part 32 Bending bolt 33 Screw part W1, W2 One surface width

Claims (2)

A battery terminal body in which a clamping gap is provided to form a pair of opposing clamping parts;
A bending bolt that penetrates the tightening portion and a screw portion bends with respect to a bolt central axis; and
A nut screwed on the threaded portion,
Be one which is interposed between the clamping portion and the nut has a bolt insertion hole for inserting the bending bolt has an opening of the bolt insertion hole, the center axis of the threaded portion A spacer having a regular polygonal contact surface orthogonal to the contact surface and a contact inclined surface inclined with respect to the corresponding contact surface, and forming the opening of the corresponding contact inclined surface in an oval shape ;
A battery terminal comprising:
When the bolt insertion hole on the side of the contact inclined surface of the spacer is formed in an oval shape, and instead of the bending bolt, another bending bolt in which the screw portion is bent rather than the bending bolt is used. The rotation direction of each spacer in a state where the contact inclined surfaces are in contact with each other by a spacer detent formed on the periphery of the contact inclined surface of each spacer. A battery terminal, wherein the battery terminal is interposed between the nut and the nut so as to restrict movement of the battery. A bolt insertion hole for inserting a bending bolt whose screw portion is bent with respect to the bolt central axis, a regular polygonal contact surface having an opening of the bolt insertion hole, and a contact inclined to the corresponding contact surface Two spacers having an inclined surface and the opening of the corresponding inclined surface formed in an oval shape, and a spacer detent portion formed on the periphery of the contact surface of each spacer, and the contact A spacer connecting part for a battery terminal , wherein the spacers are connected so as to restrict the movement of the spacers in the rotational direction with the inclined surfaces in contact with each other .

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