JP5063857B2 - 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 used for the battery terminal.

  A nut including a battery terminal main body, a bending bolt that penetrates the tightening portion of the battery terminal main body, a nut that is screwed into the screw 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 so that the threaded portion is bent with respect to the bolt central 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.
Japanese Patent Laid-Open No. 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, in the above prior art, the above interference may not be avoided depending on the vehicle type and grade, so it is necessary to further improve workability.

  This invention is made | formed in view of the situation mentioned above, and makes it a subject to provide the battery terminal and spacer which can improve workability | operativity further.

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 into the threaded portion;
In addition to being interposed between the tightening portion and the nut, it has a bolt insertion hole for the bending bolt, and a seat surface for contacting the nut becomes an inclined surface orthogonal to the axis of the screw portion. A spacer formed as follows,
A battery terminal comprising:
Thereby forming a positive polygonal section perpendicular wall side of the battery terminal body of the spacer, projecting the pair of clamping portions of the battery terminal body a flat vertical wall, outwardly from the upper and lower sides of the vertical wall Forming a pair of rotation preventing portions in a substantially U shape, and forming a receiving portion for hooking the regular polygonal portion by the pair of rotation preventing portions,
The regular polygonal portion protrudes from the contact surface of the spacer that contacts the tightening portion, and the pair of tightening portions of the battery terminal main body are formed in a flat plate-like vertical wall, and the through hole penetrates the bending bolt. And forming the through hole in a shape in which the regular polygonal portion formed to protrude from the contact surface of the spacer is closely fitted,
Have the action of a receiving part that hooks the regular polygon part to the through hole of the tightening part,
A mounting direction of the spacer with respect to the tightening portion can be selected in a rotation direction around the bolt central axis.

  According to the present invention having the features as described above, it is possible to select several mounting directions of the spacer. As a result, the spacer can be attached in an easy-to-work direction, and the nut can be tightened thereon. The spacer does not rotate around the bending bolt during tightening of the nut due to the engagement between the regular polygonal portion and the receiving portion. According to the present invention, it is possible to smoothly perform a nut tightening operation while avoiding interference between a tightening tool and battery peripheral components.

According to the first aspect of the present invention, there is an effect that it is possible to provide a battery terminal that can improve workability as compared with the prior art.
According to the present invention described in claim 1, the outer peripheral surface of the spacer is a regular polygonal part, and the bolt detent part of the battery terminal body is shared as a receiving part, so that the mounting direction of the spacer can be changed. There is an effect that it can be made selectable.

Hereinafter, description will be given with reference to the drawings.
FIG. 1 is a perspective view showing an embodiment of a battery terminal and a spacer according to the present invention, wherein (a) is a perspective view that enables nut tightening from diagonally above, and (b) is a spacer with respect to (a). It is a perspective view of the state which rotated the bending bolt 90 degrees. 2 is an exploded perspective view of the battery terminal of FIG. 1, FIGS. 3 and 4 are perspective views of the spacer, and FIG. 5 is a state in which the spacer and the bending bolt are arranged in the opposite direction with respect to FIG. It is a disassembled perspective view.

  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 screw portion 5 of the bending bolt 4, and a spacer 7 interposed between the tightening portion 3 and the nut 6. Further, the battery terminal 1 of the present invention is configured so that several mounting directions of the spacer 7 can be selected. 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 body 2 is provided with an annular portion 8, a pair of tightening portions 3, and a wire connection portion 9. The annular portion 8 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 8 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 8. 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 7 is attached. When the distance between the pair of tightening portions 3 is narrowed, the annular portion 8 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, the pair of detent portions 12 of the one tightening portion 3 corresponds to the receiving portion described in the claims. 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 wire connection portion 9 is formed so as to be continuous with the other tightening portion 3 (the tightening portion 3 on the rotation preventing portion 12 (12a) side). The wire connecting portion 9 is a portion for connecting the power supply wire and has a pair of conductor crimping pieces 15. The wire connection portion 9 is formed so as not to interfere with the head portion 14 of the bending bolt 4.

  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 portion 5 is not particularly limited, but is formed to be bent, for example, by 30 ° 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 7 is a block-like member and has a bolt insertion hole 17 for inserting the central shaft portion 16 and the screw portion 5 of the bending bolt 4. The spacer 7 has a contact surface 18 that contacts the vertical wall 11 of the tightening portion 3 and a seat surface 19 for contacting the nut 6. The contact surface 18 is a flat surface and is formed in a square shape. Since the contact surface 18 has a square shape, it is formed so that the one surface widths W2 are all equal. Further, the dimension of the contact surface 18 is set so that the one-surface width W2 matches the distance between the pair of detent portions 12 (12b) of the tightening portion 3.

  Such a portion where the abutment surface 18 exists corresponds to the regular polygonal portion described in the claims, and is denoted by reference numeral 20 in the following description. As can be seen from the figure, the regular polygonal portion 20 has a shape similar to the head portion 14 of the bending bolt 4. Like the bending bolt 4, the orientation of the seating surface 19 changes when rotated every 90 °. It is like that.

  The seat surface 19 is formed to be an inclined surface orthogonal to the axis of the screw portion 5. The seating surface 19 is a flat surface and is formed in a rectangular shape. Such a portion where the seating surface 19 exists is formed so that the thickness from the contact surface 18 gradually increases downward (see FIG. 1A and FIGS. 2 to 4).

  The bolt insertion hole 17 is formed so that the opening 21 on the contact surface 18 side is circular. The bolt insertion hole 17 is formed so that the opening 22 on the seating surface 19 side has an oval shape. When the bending bolt 4 is inserted into the bolt insertion hole 17, its length is set so that the tip end side of the screw portion 5 protrudes from the opening 22 on the seating surface 19 side.

  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 in which the electric wire is connected to the electric wire connecting portion 9 and then inserting the spacer 7 into 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. When the annular portion 8 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 19 of the spacer 7, the tightening force is applied in the direction of the bolt center axis of the bending bolt 4. The pair of tightening portions 3 moves in a direction in which they are close to each other. Thereby, the diameter of the annular portion 8 is reduced, and the connection of the battery terminal 1 of the present invention to the battery post is completed.

  According to the battery terminal 1 of the present invention, since the spacer 7 has the regular polygonal portion 20, the mounting direction is selected so that the spacer 7 can be easily tightened by the regular polygonal portion 20. can do. In the case of the regular polygonal portion 20 of the present embodiment, as shown in FIG. 1A, the direction in which the nut 6 can be tightened obliquely from above or as shown in FIG. The direction in which the spacer 7 and the bending bolt 4 are rotated by 90 ° with respect to FIG. 1 (a), and the direction of being rotated by 180 ° with respect to FIG. Four can be selected.

  Note that the regular polygonal portion 20 of the spacer 7 of this embodiment has four contact surfaces 18 because the contact surface 18 is square. However, instead of this, a regular polygon having six or eight faces may be formed. In this case, more mounting directions can be selected.

  The battery terminal 1 of the present invention can select several attachment directions of the spacer 7 (select several in the rotation direction around the bolt central axis). Thereby, workability | operativity can be improved rather than the conventional battery terminal.

  FIG. 5 is an exploded perspective view showing a state in which the spacers 7 and the bending bolts 4 are arranged in the reverse direction with respect to FIG. As shown in FIG. 5, it is also possible to attach the spacer 7 to the tightening portion 3 where the electric wire connecting portion 9 is provided. Further, as in the above, several attachment directions of the spacer 7 can be selected.

  Next, another example of the regular polygon part will be described with reference to FIG. FIG. 6A is a perspective view of a spacer having a regular polygon portion as another example, and FIG. 6B is a perspective view of a receiving portion corresponding to the regular polygon portion of FIG.

  In FIG. 6 (a), a regular polygonal portion 20 'is formed on the contact surface 18' of the spacer 7 'so as to protrude. The regular polygonal portion 20 'has a regular hexagonal shape and is formed at the periphery of the bolt insertion hole 17'. 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 '. Even with such a regular polygonal portion 20 'and a receiving portion 12b', the same effects as described above can be obtained (not limited to a regular hexagonal shape, but a regular triangular shape, a regular pentagonal shape, a regular hexagonal shape, a regular heptagonal shape). ... is also possible). Although not particularly illustrated, the same effect as described above can be obtained by forming a regular polygonal portion protruding from the periphery of the through hole of the tightening portion and forming a receiving portion in a concave shape on the contact surface of the spacer.

  Next, another example of the battery terminal body will be described with reference to FIGS. FIG. 7 is an exploded perspective view showing another example of the battery terminal main body, and FIG. 8 is a perspective view of the battery terminal in which a spacer, a bending bolt, and a nut are assembled to the battery terminal main body of FIG. Note that the spacers, bending bolts, and nuts are the same as in FIG.

  7 and 8, another example of the battery terminal 31 of the present invention includes a battery terminal main body 32, a bending bolt 4 penetrating a pair of tightening portions 33 of the battery terminal main body 32, and a screw portion of the bending bolt 4. 5 and a spacer 7 interposed between the tightening portion 33 and the nut 6. In addition, the battery terminal 31 of the present invention as another example is configured so that several mounting directions of the spacer 7 can be selected as in the case of the battery terminal 1 described above.

  The battery terminal body 32 is manufactured by punching and bending a conductive metal plate. Such a battery terminal main body 32 is provided with an annular portion 34, a pair of tightening portions 33, and a wire connecting portion 35. The annular portion 34 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 a tightening gap 36.

  The pair of tightening portions 33 are formed so as to be continuous with the partially cut portions of the annular portion 34. The pair of fastening portions 33 are arranged and formed so as to face each other with the fastening gap 36 interposed therebetween. The bending bolt 4 passes through the pair of tightening portions 33 and the spacer 7 is attached. When the distance between the pair of tightening portions 33 is reduced, the battery post insertion hole 37 of the annular portion 34 is reduced in diameter.

  The pair of fastening portions 33 is formed by bending a belt-like plate portion into a U shape. A through hole 38 for the bending bolt 4 is formed inside each tightening portion 33. Reference numeral 39 indicates a detent for hooking the head 14 of the bending bolt 4. Reference numeral 40 indicates a receiving portion for the regular polygonal portion 20 of the spacer 7.

  The wire connection part 35 is coupled to the annular part 34. Moreover, the electric wire connection part 35 is arrange | positioned and formed so that it may become the other side of a pair of clamping part 33. The electric wire connecting portion 35 is a portion for connecting a power supply electric wire, and includes a terminal fixing bolt 41 through which a terminal of the electric wire terminal is inserted and a nut (not shown) that is screwed into the terminal fixing bolt 41.

  In the above configuration, the battery terminal 31 according to another embodiment of the present invention is assembled in such a state that the bending bolt 4 is first inserted into the tightening portion 33 of the battery terminal main body 32 and then the spacer 7 is inserted into the bending bolt 4. (Since the spacer 7 has a regular polygonal portion 20, it is attached in an orientation that facilitates the tightening operation of the nut 6.) Finally, the nut 6 is screwed into the threaded portion 5 of the bending bolt 4 to complete. .

  Then, when the annular portion 34 of the battery terminal main body 32 is inserted into the battery post through the battery post insertion hole 37 and the nut 6 is started to be tightened on the seat surface 19 of the spacer 7, the tightening force is increased as described above for the bending bolt 4. Acting in the direction of the bolt center axis, the pair of tightening portions 33 moves in a direction in which they are close to each other. Thereby, the diameter of the battery post insertion hole 37 of the annular portion 34 is reduced, and the connection to the battery post is completed.

  The example in which the battery terminal body is different has been described above, but the battery terminal body is not limited to the above-described two forms.

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

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows one Embodiment of the battery terminal of this invention, and a spacer, (a) is the perspective view which enabled nut fastening from diagonally upward, (b) is a spacer and a bending bolt with respect to (a). It is a perspective view of the state which rotated 90 degrees. It is a disassembled perspective view of the battery terminal of FIG. It is the perspective view seen from the contact surface side of the spacer of FIG. It is the perspective view seen from the bearing surface side of the spacer of FIG. It is a disassembled perspective view of the state which has arrange | positioned the spacer and the bending volt | bolt in the reverse direction with respect to Fig.1 (a). (A) is a perspective view of the spacer which has the regular polygon part used as another example, (b) is a perspective view of the receiving part corresponding to the regular polygon part of (a). It is a disassembled perspective view which shows the other example of a battery terminal main body. FIG. 8 is a perspective view of a battery terminal in which a spacer, a bending bolt, and a nut are assembled to the battery terminal main body of FIG. 7.

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 Annular part 9 Electric wire connection part 10 Fastening gap 11 Vertical wall 12 Anti-rotation part (bolt detent part)
12a Anti-rotation part 12b Anti-rotation part functioning as a receiving part 13 Through hole 14 Head 15 Conductor caulking piece 16 Central shaft part 17 Bolt insertion hole 18 Contact surface 19 Seat surface 20 Regular polygon part 21, 22 Opening part W1 , W2 width across flat

Claims (1)

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 into the threaded portion;
In addition to being interposed between the tightening portion and the nut, it has a bolt insertion hole for the bending bolt, and a seat surface for contacting the nut becomes an inclined surface orthogonal to the axis of the screw portion. A spacer formed as follows,
A battery terminal comprising:
Thereby forming a positive polygonal section perpendicular wall side of the battery terminal body of the spacer, projecting the pair of clamping portions of the battery terminal body a flat vertical wall, outwardly from the upper and lower sides of the vertical wall Forming a pair of rotation preventing portions in a substantially U shape, and forming a receiving portion for hooking the regular polygonal portion by the pair of rotation preventing portions,
The regular polygonal portion protrudes from the contact surface of the spacer that contacts the tightening portion, and the pair of tightening portions of the battery terminal main body are formed in a flat plate-like vertical wall, and the through hole penetrates the bending bolt. And forming the through hole in a shape in which the regular polygonal portion formed to protrude from the contact surface of the spacer is closely fitted,
Have the action of a receiving part that hooks the regular polygon part to the through hole of the tightening part,
The battery terminal, wherein a mounting direction of the spacer with respect to the tightening portion can be selected in a rotation direction around the bolt central axis.

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