JP2008210768A - Battery post - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely perform mounting of a terminal at suitable workability. <P>SOLUTION: A battery post 1 consists of a support bar 2 set in projection on an upper face of a battery, a plug member 3 screwed into the support bar 2 capable of moving up and down along the support bar 2 and fixing at an optional position, and outer frame bodies 4, 5 connected with the support bar 2 capable of expanding and contracting in a radial direction with the support bar 2 as a center at the outer peripheral side of the plug member 3 and being pushed in an expanding direction due to interference with the ascending plug member 3. A battery terminal 20 is externally fitted into the outer periphery of the outer frame bodies 4, 5 moved in a contracting direction, and the outer frame bodies 4, 5 push and fix the battery terminal 20 by moving the outer frame bodies 4, 5 in the expanding direction when making the plug member 3 ascend. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a battery post provided for attaching a terminal such as a battery terminal to a battery mounted on an automobile or the like.

  The battery post protrudes in a conical or cylindrical shape on the upper surface of the battery, and the battery terminal is attached to the battery post. For example, as shown in Patent Document 1, this battery terminal includes a contact portion that is formed in a loop shape and into which a battery post is inserted, and a fastening portion that extends from both ends of the contact portion. It is well known that it can be fixed to a battery post by tightening with a nut and a nut to reduce the diameter of the contact portion.

Japanese Utility Model Publication No. 5-31133

  The bolts and nuts are tightened in the direction perpendicular to the battery posts (sideways), making it difficult to operate tools such as a wrench in a narrow space, and the workability associated with attaching and detaching battery terminals is not good. . Also, when transporting battery terminals, the bolts and nuts are often loosely temporarily fastened to the fastening parts so that they can be quickly attached to the battery posts. Dropped and lost, or the nut was tightened too much and it was necessary to loosen the nut once, so that the installation work could not be done or extra work was required. Furthermore, in order to prevent the bolts and nuts from falling off, special management such as applying lock paint to the bolts or tightening them with an ultra-low torque has been performed.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a battery post capable of reliably performing terminal attachment with good workability.

In order to achieve the above object, the invention described in claim 1 is a support rod protruding from the upper surface of the battery, and is mounted on the support rod so as to be vertically movable along the support rod and fixed at an arbitrary position. A plurality of plug members which are connected to the support rods so as to be expandable / contractable in the radial direction around the support rods on the outer peripheral side of the plug members, and are pressed in the expanding direction by interference with the plug members which rise or fall It consists of an outer frame, and a terminal is fitted on the outer periphery of the outer frame that has been moved in the reduction direction, and the stopper is lifted or lowered to move the outer frame in the expansion direction and press and fix the terminal. It is characterized by being possible.
In addition to the object of the first aspect, the invention described in claim 2 is such that the stopper member is screwed into the support rod and is moved up and down by a rotation operation in order to easily and reliably operate the stopper member. This is a configuration that can be fixed with.
According to a third aspect of the present invention, in addition to the object of the second aspect, in order to facilitate the rotation operation of the plug member, a nut for rotation operation is integrally provided at the upper end of the plug member.
According to a fourth aspect of the present invention, in addition to the object of any one of the first to third aspects, in order to smoothly move the outer frame body in the expansion / contraction direction, the plug member is formed in a conical shape, The interference portion with the plug member in the frame is tapered along the outer shape of the plug member.
In addition to the object of any one of the first to fourth aspects of the present invention, the terminal is connected to the outer frame body in order to obtain a terminal that can secure a contact area with the battery post and can be used at low cost. A flat terminal having a cylindrical portion formed in the outer fitting portion is provided.

According to the first aspect of the present invention, since the terminal can be fixed and released by the vertical movement operation of the plug member from above, the terminal can be easily attached and detached even in a narrow space.
In addition, there is no need for special management by loosely fixing bolts and nuts to the terminal as in the past, and only simple tightening management is required. In addition, parts are lost during transportation and the terminal cannot be installed. Does not occur. Therefore, the terminal can be reliably attached with good workability. Furthermore, since the structure of the battery post is changed instead of using a special new terminal for the conventional battery post as in Patent Document 1, the cost increase is reduced.
According to the second aspect of the present invention, in addition to the effect of the first aspect, the operation of the plug member for attaching and detaching the terminal can be performed easily and reliably by screwing.
According to the invention described in claim 3, in addition to the effect of claim 2, the nut can be easily rotated by the nut.
According to the invention described in claim 4, in addition to the effect of any one of claims 1 to 3, the plug member is formed in a conical shape, and the interference portion with the plug member in the outer frame is tapered. Thus, the outer frame body can be smoothly moved in the expansion / contraction direction.
According to the invention described in claim 5, in addition to the effect of any one of claims 1 to 4, the use of a flat terminal formed with a cylindrical portion ensures a contact area with the battery post even if it is a flat terminal. it can. Therefore, contact resistance is reduced and overtightening is less likely to occur. In addition, the conventional flat terminal can be simply processed to form a cylindrical part, and the flat terminal can be directly attached to the battery post. Thus, while maintaining the connection stability, not only bolts and nuts, but also intermediate terminals The extra parts such as are unnecessary.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an exploded perspective view showing an example of the battery post of the present invention. The battery post 1 includes a support bar 2 standing on the upper surface of the battery, a plug member 3 screwed to the support bar 2, It consists of two outer frames 4 and 5.
First, the support rod 2 is a screw rod that passes through a circular base plate 6 protruding from the upper surface of the battery and is suspended above the battery. The plug member 3 has a conical shape having a large diameter on the lower side, and a through hole 7 into which the support rod 2 can be freely inserted is formed in the shaft center, while the support rod 2 is screwed into the upper end portion. A possible nut 8 is fixed, and is rotated with a wrench or the like through the nut 8 so that the support rod 2 can be moved up and down and fixed at an arbitrary position.

  The outer frame body 4 has a circular bottom surface portion 9 having the same diameter as that of the base plate 6, and a tapered wall portion 10 extending along the outer shape of the plug member 3 is provided on a semicircular portion on the circular bottom surface portion 9. Has been established. The outer frame body 5 has a circular bottom surface portion 11 that can be set on the upper surface of the circular bottom surface portion 9 within the wall portion 10 of the outer frame body 4, and the outer frame body 4 on the outer surface side on the circular bottom surface portion 11. The taper-shaped wall part 12 along the external shape of the plug member 3 is provided in the half circumference part on the opposite side. That is, by combining the outer frame body 4 and the outer frame body 5, as shown in FIG. 2A, it is possible to form a conical post body 13 that opens upward. Here, the upper opening 14 formed by combining the outer frame bodies 4 and 5 is set to be substantially the same as the diameter of the upper portion of the plug member 3.

  In addition, elongated holes 15A and 15B through which the support rod 2 can pass are formed in the circular bottom surface portions 9 and 11 of the outer frame bodies 4 and 5, respectively. The elongated holes 15A and 15B are formed along lines connecting the centers of the circular bottom surface portions 9 and 11 and intermediate positions of the wall portions 10 and 12, respectively. 4 and 5 are through-holes of the support rod 2, in the combination position where the post body 13 is formed as shown in FIG. 2A, and in the direction in which the long holes 15A and 15B are formed as shown in FIG. It is movably connected to a separation position where the post body 13 spreads apart. At the separation position, the plug member 3 can enter the space between the outer frame bodies 4 and 5.

  In the battery post 1 configured as described above, the outer frame body 4 is first set on the base plate 6 with the support bar 2 passing through the circular bottom surface portion 9, and then the outer frame body 5 is also mounted on the circular bottom surface. The support bar 2 is passed through the portion 11 and set on the circular bottom surface portion 9 of the outer frame body 4. Then, with both outer frame bodies 4 and 5 moved to the separated position, the stopper member 3 is externally mounted on the support rod 2 and the nut 8 at the upper end is screwed together. Screw in until it enters between the outer frame bodies 4 and 5.

  When both the outer frame bodies 4 and 5 are moved to the combined position in this state, the post main body 13 is contracted around the plug member 3 as shown in FIG. Here, the attachment portion 21 of the battery terminal 20 is fitted from above the post body 13 and the nut 8 of the plug member 3 is rotated in the slack direction using a wrench or the like as it is. Then, the stopper member 3 rises, and the tapered surfaces on the outer periphery press the wall portions 10 and 12 of the outer frame bodies 4 and 5 from the inside, respectively, so that both the outer frame bodies 4 and 5 are pushed to the separation position. As shown in FIG. 4, the outer frame bodies 4 and 5 are press-fitted into the mounting portion 21 of the battery terminal 20 with the plug member 3 as a wedge, and the battery terminal 20 is fixed to the battery post 1.

  On the contrary, when removing the battery terminal 20, if the nut 8 of the plug member 3 is rotated in the screwing direction with a wrench or the like, the plug member 3 descends and the wall portions 10 and 12 of the outer frame bodies 4 and 5 are formed by the tapered surfaces. In order to release the pressure, a gap is generated between the outer frame bodies 4 and 5 and the attachment portion 21 of the battery terminal 20, and the battery terminal 20 can be removed.

  As described above, according to the battery post 1 of the above embodiment, the support bar 2 protruding from the upper surface of the battery, the exterior of the support bar 2, which can be moved up and down along the support bar 2 and fixed at an arbitrary position. The plug member 3 is connected to the support rod 2 so that it can expand and contract in the radial direction around the support rod 2 on the outer peripheral side of the plug member 3, and is pressed in the expanding direction by interference with the rising plug member 3. The battery terminals 20 are fitted on the outer periphery of the outer frame bodies 4 and 5 moved in the reduction direction, and the plug member 3 is raised to expand the outer frame bodies 4 and 5. Since the battery terminal 20 can be pressed and fixed by moving in the direction, the battery terminal 20 can be fixed and released by rotating the plug member 3 from above. Can be attached and detached.

  In addition, it is not necessary to perform special management by loosely fastening bolts and nuts to the battery terminal 20 as in the past, and only simple tightening management is required, and parts are lost during transportation and the battery terminal 20 is attached. There is no problem of not being able to Therefore, the battery terminal 20 can be reliably attached and detached with good workability. Furthermore, since the structure of the battery post is changed instead of using a special new terminal for the conventional battery post, the cost increase is reduced.

In particular, here, the plug member 3 is screwed to the support rod 2 and can be moved up and down and fixed at an arbitrary position by a rotation operation. Therefore, the operation of the plug member 3 for attaching and detaching the battery terminal 20 is possible. Can be easily and reliably performed.
Moreover, since the nut 8 for rotation operation is integrally provided in the upper end of the plug member 3, rotation operation of the plug member 3 can be performed easily.
Furthermore, since the plug member 3 is formed in a conical shape, and the interference portions with the plug member 3 in the outer frame bodies 4 and 5 are tapered wall portions 10 and 12 along the outer shape of the plug member 3, the outer frame body 4, 5 can be smoothly moved in the expansion / contraction direction.

In the above embodiment, a nut is provided at the upper end of the plug member. However, a nut shape may be directly formed at the upper end of the plug member so as to be rotatable. Of course, it is possible to use a two-sided width portion in addition to the nut shape. Further, the plug member is not limited to a conical shape as a whole. If the plug member can be pressed against the wall portion of the outer frame body, the taper flange 16 is wound downward as in the battery post 1a shown in FIG. The plug member 3a having an inverted T-shaped longitudinal section can also be used.
Further, FIG. 5 also shows the post main body 13a having the same diameter in the vertical direction according to the shape of the battery terminal 20a. Also in this case, by forming the tapered surfaces 17a on the inner surfaces of the wall portions 17 and 17 of the outer frame bodies 4a and 5a, the plug member 3a can be expanded and contracted by moving up and down.

In addition, the outer frame body is not limited to two, but can be formed by three or more, and the whole wall is not formed with a tapered wall portion, and the tapered wall portion is formed in the lower portion and the upper portion As a composite shape in which a straight cylindrical wall portion is formed, the outer frame body may be expanded by interference between the plug member and the lower wall portion.
Further, in the above embodiment, the two outer frame bodies have different shapes so that the post body is generally conical, but a plurality of outer frame bodies having the same shape are prepared and connected to the support rod. However, although the overall shape of the post body is somewhat distorted, the terminal can be fixed and released by expansion / contraction.

  On the other hand, in the above embodiment, the plug member is screwed to the support rod so as to be movable up and down, but the vertical mechanism is not limited thereto. For example, the support rod is not a bolt, but a shaft body in which a plurality of stoppers are projected intermittently in a part of the peripheral surface, and a shaft body including the stopper is loosely inserted in the center of the plug member. A through hole with a protrusion that can engage with the stopper is formed on the inner surface so that the plug member can be moved up and down at the rotation position of the plug member where the protrusion and the stopper do not interfere in the axial direction. A structure that restricts the vertical movement of the plug member by engaging the stopper with the stopper in the axial direction is also conceivable.

And in the said form, it is set as the structure which permits the movement to the reduction | decrease direction of an outer frame body in the descent | fall position of a plug member, and presses an outer frame body in the expansion direction by the raise of a plug member. As shown in the battery post 1b shown in FIG. 6, the plug member 3b has a conical shape with a small diameter on the lower side, and tapered surfaces 18 and 18 along the inner surfaces of the wall portions 10 and 12 of the outer frames 4 and 5, respectively. And a structure that allows the outer frame bodies 4 and 5 to move in the contracting direction at the raised position of the plug member 3b and presses the outer frame bodies 4 and 5 in the expanding direction by lowering the plug member 3b. It can be adopted.
In addition, the present invention is not limited to the battery terminal as described above, but can be applied to a flat terminal such as an LA terminal or a BA terminal. In particular, in the case of a flat terminal, since the terminal structure is simple, there is an advantage that the cost is reduced and bolts and nuts are unnecessary.

However, when a flat terminal is used, it can be fixed by expanding the outer frame body of the battery post, but the contact area between the flat terminal and the outer frame body decreases, so that the contact resistance may increase. There is. In addition, excessive tightening may cause troublesome insertion / removal and may damage the outer frame and the like. As disclosed in Japanese Utility Model Laid-Open No. 5-45899, another battery terminal (intermediate terminal) may be fitted to the battery post, and the flat terminal may be attached to the battery terminal. In addition, it takes time and effort and leads to cost increase.
Therefore, as shown in FIG. 7, it is possible to use a flat terminal 30 in which a cylindrical portion 31 along the shape of the battery post is formed in an outer fitting portion to the outer frame body by drawing the hole portion or the like. Conceivable.

  Even when this flat terminal 30 is used, it can be attached to the battery post 1 in the same procedure as the battery terminal 20 described above. That is, as shown in FIG. 8, with the battery post 1 in a state in which the post body 13 is contracted around the plug member 3, the cylindrical portion 31 of the flat terminal 30 is externally fitted from above the post body 13 and is left as it is. The nut 8 of the plug member 3 is rotated in the slack direction using a wrench or the like. Then, the stopper member 3 rises, and the tapered surfaces on the outer periphery press the wall portions 10 and 12 of the outer frame bodies 4 and 5 from the inside, respectively, so that both the outer frame bodies 4 and 5 are pushed to the separation position. As shown in FIG. 9, the outer frame bodies 4 and 5 are pressed into the cylindrical portion 31 of the flat terminal 30 with the plug member 3 as a wedge, and the flat terminal 30 is fixed to the battery post 1.

Thus, the contact area with the battery post 1 can be ensured even if it is a flat terminal by using the terminal as the flat terminal 30 in which the cylindrical portion 31 is formed in the outer fitting portions 4 and 5. Therefore, contact resistance is reduced and overtightening is less likely to occur. In addition, the conventional flat terminal can be simply processed to form a cylindrical part, and the flat terminal can be directly attached to the battery post. Thus, while maintaining the connection stability, not only bolts and nuts, but also intermediate terminals The extra parts such as are unnecessary.

It is a disassembled perspective view of a battery post. It is explanatory drawing of an outer frame, (A) shows a combination position, (B) shows a separation position, respectively. It is a perspective view which shows the attachment state of a battery terminal. It is a perspective view which shows the attachment state of a battery terminal. It is sectional drawing which shows the example of a change of a battery post. It is sectional drawing which shows the example of a change of a battery post. It is explanatory drawing of a flat terminal, an upper part shows a longitudinal cross section, and the lower part shows a plane, respectively. It is a perspective view which shows the attachment state of a flat terminal. It is a perspective view which shows the attachment state of a flat terminal.

Explanation of symbols

  1, 1a, 1b ··· Battery post, 2 ··· Support rod, 3, 3a, 3b ·· Plug member, 4, 4a, 5, 5a · · Outer frame, 8 · · Nut, 9, 11 · · Circular Bottom part, 10, 12, 17 ... Wall part, 13, 13a ... Post body, 15A, 15B ... Long hole, 20 ... Battery terminal, 21 ... Installation part, 30 ... Flat terminal, 31 ... Tube section.

Claims (5)

A battery post protruding to attach a terminal to the upper surface of the battery,
A support rod protruding from the upper surface of the battery; a plug member which is externally mounted on the support rod and can be moved up and down along the support rod; and can be fixed at an arbitrary position; and the support on the outer peripheral side of the plug member It consists of a plurality of outer frames that are connected to the support rod so as to be able to expand and contract in the radial direction around the rod, and are pressed in the expanding direction by interference with the plug member that rises or descends. Further, the terminal is fitted on the outer periphery of the outer frame body, and the plug member is lifted or lowered to move the outer frame body in the expanding direction so that the terminal can be pressed and fixed. Battery post.   2. The battery post according to claim 1, wherein the plug member is screwed onto the support rod, and can be moved up and down and fixed at an arbitrary position by a rotating operation.   The battery post according to claim 2, wherein a nut for rotation operation is integrally provided at an upper end of the stopper member.   4. The plug member according to claim 1, wherein the plug member is formed in a conical shape, and an interference portion of the outer frame body with the plug member is tapered along the outer shape of the plug member. Battery post.   The battery post according to any one of claims 1 to 4, wherein the terminal is a flat terminal in which a cylindrical portion is formed in a portion fitted to the outer frame body.

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