JP2011113669A - Battery terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a battery terminal capable of maintaining a state of a holding part outwardly fitted into a battery post, even if external force generated upon or after fixing of a wire to a wire connecting part is transferred to the holding part. <P>SOLUTION: The battery terminal is provided with: a holding part 20 of a ring shape with an end to be fitted into the battery post 50 having a tapered outer periphery face with its diameter gradually getting smaller toward a top end side; a pair of fastening piece parts 30 extended in opposition from both ends of the holding part 20, respectively; a wire connecting part 11 integrally prepared to the holding part 20 for the wire to be connected; and a fastener for fastening the pair of fastening piece parts 30 in a direction coming near each other. An upper edge part 21 of the holding part 20 crosses a peripheral direction of the battery post 50. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a battery terminal for connecting an electric wire to an electrode of a battery.

Conventionally, what was described in patent document 1 is known as an example of the battery terminal used in order to connect an electric wire to a battery post.
This battery terminal connects an annular holding part that fits into a battery post of a battery mounted in an engine room of a vehicle, etc., a fastening part for fastening the holding part, and a terminal on the electric wire side. It is comprised from the electric wire connection part. The tightening portion extends from both ends of the holding portion so as to be tightened by a post tightening bolt and a nut.

  The wire connection portion is formed continuously on the side opposite to the clamping portion of the holding portion, and stud bolts are provided to protrude upward, and the axis of the stud bolt is parallel to the axis of the battery post. There is no. An electric wire side terminal is inserted into the stud bolt, and a nut is inserted from above the terminal bolt and fixed by tightening.

  The battery post is positioned on the upper surface of the battery and has a substantially truncated cone shape having a tapered side surface with a diameter gradually decreasing from the upper surface toward the upper end side. By fitting the holding portion into the battery post from above and tightening the bolt of the tightening portion, the holding portion can be fixed in a state of being reduced in diameter and in close contact with the side surface of the battery post.

  By the way, in order to attach this battery terminal, first, the holding part is externally fitted to the battery post, and the post tightening bolt is tightened and fixed, and then the electric wire side terminal is fitted to the stud bolt of the electric wire connecting part, Further, tighten the nut to the stud bolt to fix the terminal.

JP 2006-338999 A

  In such an attachment procedure, when the wire-side terminal is nut-fastened to the stud bolt of the wire connecting portion, a rotational torque acts on the battery terminal by a frictional force with the nut. This rotational torque becomes an external force that acts in a substantially perpendicular direction around the axis of the battery post, and the holding portion that externally fits the battery post may be pulled out by this external force.

  Further, even when the electric wire is pulled after the electric wire side terminal is fastened to the stud bolt, a force that the holding portion tries to rotate in any one direction with respect to the axial center of the battery post may act. In addition to this, the outer peripheral surface of the battery post is tapered, which may cause the holding portion to come off from the battery post.

  The present invention has been completed based on the above circumstances, and even when an external force generated when the electric wire is fixed to the electric wire connecting portion and after the electric force is transmitted to the holding portion, the holding portion is the battery post. An object of the present invention is to provide a battery terminal that can be kept externally fitted to the battery terminal.

  The present invention provides a holding portion having an end ring shape that is fitted to a battery post having a tapered outer peripheral surface that gradually decreases in diameter toward the upper end side, and extends opposite to both ends of the holding portion. A pair of tightening pieces, an electric wire connecting portion integrally connected to the holding portion to which an electric wire is connected, and fastening means for holding the pair of fastening pieces in a direction approaching each other , Wherein the holding portion is formed with an inclined edge portion that intersects the circumferential direction of the battery post.

  Usually, the battery post is formed of a material (lead alloy) having a lower rigidity than the holding portion. When the holding portion is externally fitted to the battery post, the inclined edge portion bites into the battery post, so that the meat of the battery post on the upper end side of the inclined edge portion protrudes outside the holding portion. As a result, even if the holding portion tries to come out above the battery post due to the external force, the inclined edge portion is caught and prevented by the step formed by the protruding battery post meat. Further, when the holding portion is going to rotate along the direction in which the inclined edge portion is inclined downward, the meat of the battery post that protrudes above the inclined edge portion is also inclined downward. As a result, the entire holding portion is guided in the downward direction along the step while the inclined edge portion is hooked on the downward extending step formed on the battery post, so that the holding portion is further removed from the battery post. Can be blocked.

  The electric wire connecting portion includes a terminal fixing bolt for screwing and fixing an electric wire side terminal connected to the terminal portion of the electric wire, and the inclined edge portion is the hug when the terminal fixing bolt is tightened. It may be made into the inclined shape which becomes the downward direction ahead of the relative rotation direction with respect to the battery post.

  When screwing and fixing the wire side terminal to a terminal fixing bolt such as a stud bolt, the screw side is fixed rather than the force applied to the holding part by the wire being pulled after the wire side terminal is fixed to the terminal fixing bolt. Sometimes the force transmitted to the holding part is greater. This form is specialized for preventing the holding portion from being detached from the battery post against the force applied to the holding portion when the screw is fixed. The inclined edge portion is inclined downward along the same rotational direction as the screw fastening direction of the terminal fixing bolt. When the holding part tries to rotate in the same direction as the screw tightening direction, the rotation direction is guided downward by the step on the battery post formed by the protrusion of the meat on the upper side of the inclined edge part. As a result of the inclined edge portion being caught, the force that tends to escape upward can be suppressed.

  The inclined edge portion may have a shape inclined symmetrically in both directions from a substantially intermediate position in the extending direction of the holding portion. According to such a structure, the inclined edge portion can exhibit the effect of guiding the entire holding portion downward with respect to the force in both directions in which the holding portion tries to rotate with respect to the battery post.

  The inclined edge portion may be an upper edge portion of the holding portion. By setting the upper edge, which is the first part to be removed when the holding part comes out from the battery post, as the inclined edge part, it is possible to prevent the removal more effectively than providing the inclined edge part at another part.

  The inclined edge portion may be formed by an edge portion of a recess provided on a surface of the holding portion that contacts the outer peripheral surface of the battery post. First, by providing a recess on the contact surface to the battery post, an effect as a detent can be expected. Further, by setting the edge of the concave portion as an inclined edge portion, a part of the inclined edge portion inclined downward in the direction in which the holding portion tries to rotate with respect to the battery post guides the rotation direction downward. Thereby, even if the holding part rotates around the battery post, it can be prevented from coming out of the battery post.

  The inclined edge portion may be formed by an inner peripheral edge portion of a hole penetrating a side surface of the holding portion that contacts the outer peripheral surface of the battery post. The effect is the same as in the case where the recess is provided, but in addition to this, by forming the inclined edge portion with a through hole, the weight of the battery terminal corresponding to the hole portion can be reduced.

  According to the present invention, there is provided a battery terminal capable of maintaining a state in which the holding portion is externally fitted to the battery post even when an external force generated when the electric wire is fixed to the electric wire connecting portion and after the fixing is transmitted to the holding portion. Can be provided.

The perspective view of the battery terminal which concerns on Embodiment 1 of this invention. Side view of battery terminal according to Embodiment 1 Top view of battery terminal according to Embodiment 1 The top view of the expansion | deployment components of the battery terminal which concerns on Embodiment 1. FIG. The top view of the expansion | deployment components of the battery terminal which concerns on the modification 1 of Embodiment 1. FIG. The top view of the expansion | deployment components of the battery terminal which concerns on the modification 2 of Embodiment 1. FIG. The perspective view of the battery terminal which concerns on Embodiment 2. FIG. Side view of battery terminal according to Embodiment 2 The top view of the expansion | deployment components of the battery terminal which concerns on Embodiment 2. FIG. The perspective view of the battery terminal which concerns on the modification 1 of Embodiment 2. FIG. The side view of the battery terminal which concerns on the modification 1 of Embodiment 2. FIG. The top view of the expansion | deployment components of the battery terminal which concerns on the modification 1 of Embodiment 2. FIG. The top view of the expansion | deployment components of the battery terminal which concerns on the modification 2 of Embodiment 2. FIG. The top view of the expansion | deployment components of the battery terminal which concerns on the modification 3 of Embodiment 2. FIG. The top view of the expansion | deployment components of the battery terminal which concerns on Embodiment 3. FIG. The top view of the expansion | deployment components of the battery terminal which concerns on the modification 1 of Embodiment 3. FIG. The top view of the expansion | deployment components of the battery terminal which concerns on the modification 2 of Embodiment 3.

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS.
The battery terminal 10 in the present embodiment includes a holding portion 20 that fits externally on a battery post 50 that is an electrode of a battery (not shown) mounted on a vehicle such as an automobile, and a wire-side terminal (not shown) connected to an in-vehicle electrical component. In this example, the electric wire connecting portion 11 is connected to the battery post 50 and the electric wire side terminal (not shown) is electrically connected to the battery post 50 via the battery terminal 10.

  The battery terminal 10 is made of a metal such as a copper alloy harder than lead, and as shown in FIG. 1, a wire connecting portion 11 for connecting a wire-side terminal (not shown) is provided. The wire connection part 11 holds the stud bolt 12 corresponding to the terminal connection bolt, and is located on the upper surface of the connection body part 13 and a plate-like connection body part 13 extended from the holding part 20 described later, And a bolt holding portion 14 for holding the stud bolt 12. A stud bolt insertion hole 15 for inserting the stud bolt 12 is formed in the bolt holding portion 14. The bolt holding portion 14 is folded back so as to overlap the upper side of the connection main body portion 13, and the stud bolt insertion hole 15 is inserted from above the stud bolt 12, so that the connection between the connection main body portion 13 and the bolt holding portion 14. The stud bolt 12 is held between the two.

  The stud bolt 12 is held so as to be substantially perpendicular to the plate surface of the bolt holding portion 14. Moreover, the center axis | shaft of the stud bolt 12 is distribute | arranged in parallel with respect to the center axis | shaft of the battery post 50 in which the holding part 20 fits outside as shown in FIG. The stud bolt 12 is a right-hand thread, and is inserted into an insertion hole provided in a wire-side terminal (not shown) and is tightened with a nut (not shown) from above, thereby fixing the wire-side terminal on the bolt holding portion 14. ing.

  A holding part 20 is provided continuously at one end of the connection main body part 13. The battery post 50 to which the holding portion 20 is fitted will be briefly described. The battery post 50 is a lead electrode protruding from the upper surface of a battery body (not shown) having a substantially box shape. As shown by the broken lines in FIGS. 1 to 3, the shape is a truncated cone having a tapered shape in which the cross-sectional shape is a perfect circle and the upper end side is gradually reduced in diameter.

  The holding part 20 that is externally fitted to the battery post 50 is C-shaped when viewed from above as shown in FIG. 3, and has a taper along the outer peripheral shape of the battery post 50. The open end portions of the holding portion 20 face each other and extend in a direction opposite to the electric wire connection portion 11, and the extended end portions are fastening pieces 30 that can be fastened to each other. Bolt insertion holes 32 through which the post tightening bolts 31 are inserted are respectively formed in the tightening pieces 30. As a fastening means of the fastening piece 30, the post fastening bolt 31 is inserted into the bolt insertion hole 32, and the nut 33 is screwed into the inserted post fastening bolt 31. By tightening the fastening piece 30, the holding portion 20 is reduced in diameter, and the holding portion 20 is externally fitted to the battery post 50.

  By the way, when the battery terminal 10 is unfolded, as shown in FIG. 4, the holding portion 20 has a band shape. The upper edge 21 of the holding part 20 is inclined in a direction approaching the lower edge 22 toward the left in FIG. In the present embodiment, the inclined upper edge 21 corresponds to an inclined edge. When the holding portion 20 is externally fitted to the battery post 50, the upper edge portion 21 is in a state of intersecting with the circumferential direction of the battery post 50 as shown in FIG. 2. In addition, the inclination direction is inclined in the same direction as the tightening direction a (right rotation direction, see FIG. 1) of the stud bolt 12 so as to approach the lower end portion of the battery post 50 with the battery post 50 as an axial center. Yes.

  The present embodiment has the above-described structure, and the assembly work of the battery terminal 10 will be described next. First, the holding part 20 is put on the battery post 50, and the nut 33 is fastened to the post fastening bolt 31 inserted through the bolt insertion hole 32. Thereby, the holding part 20 is reduced in diameter toward the axial center of the battery post 50 and fixed to the battery post 50 in an externally fitted state. At this time, since the holding part 20 is harder than the lead battery post 50, the holding part 20 is held in a state of being bitten into the battery post 50.

  Next, the not-shown wire-side terminal is attached to the battery terminal 10 by inserting a not-shown wire-side terminal insertion hole through the stud bolt 12 held on the bolt holding portion 14 and tightening a not-shown nut from above. be able to.

  By the way, when a nut (not shown) is fastened to the stud bolt 12, rotational torque in the tightening direction a is applied to the stud bolt 12 side. This rotational torque is also transmitted to the holding unit 20 via the electric wire connection unit 11. As a result, the holding portion 20 tries to turn around the battery post 50 in the b direction, which is the same as the tightening direction a. In addition, since the side surface of the battery post 50 to which the holding portion 20 is fitted is tapered, a component force that tends to escape from the upper side of the battery post 50 is also generated.

  The upper edge portion 21 can be cited as a portion that counters this external force. The upper edge portion 21 is in a state of biting into the battery post 50. The battery post 50 on the upper end side of the upper edge 21 is in a state in which the meat protrudes outward from the holding part 20 when the externally holding holding part 20 bites into the battery post 50, and the boundary with the upper edge 21. The part is stepped. Further, the upper edge portion 21 is inclined downward along the direction b in which the holding portion 20 tries to rotate by receiving an external force. With such a shape, when the holding part 20 tries to come out from the upper side of the battery post 50, first, the upper edge part 21 collides with a step formed by the upper edge part 21 biting in, and the upper part of the battery post 50 is moved to the upper end side. The movement of the holding unit 20 to be moved is restricted. Further, when the holding portion 20 tries to rotate in the b direction, the shape of the upper edge portion 21 inclined downward collides with a step formed by biting in as it is, so that the rotation direction is guided downward and rotated.

  Therefore, it is possible to prevent the holding part 20 from coming out of the battery post 50 upward by the upper edge part 21 formed on the holding part 20, and further, the battery post of the holding part 20. The direction of going around 50 can be guided to the lower end side of the battery post 50.

  In addition, compared with a conventional case where, for example, the upper edge of the holding portion has a shape along the circumferential direction of the battery post 50, in this embodiment, the holding that tries to slip out from the battery post 50 first is performed. The portion 20 is cut out. Thereby, even if it rotates in the direction which pulls out, it has the structure where the holding part 20 cannot pull out easily. With the above structure, even when an external force generated when the electric wire side terminal is fixed to the electric wire connecting portion 11 is transmitted to the holding portion 20, the holding portion 20 keeps an externally fitted state without coming out of the battery post 50. be able to.

  As mentioned above, although Embodiment 1 of this invention was shown, this invention is not restricted to the said embodiment, For example, the following modifications can also be included. In the following modifications, members similar to those in the above embodiment are denoted by the same reference numerals as those in the above embodiment, and illustration and description thereof may be omitted.

[Modification 1 of Embodiment 1]
Modification 1 of Embodiment 1 is demonstrated using FIG. Here, the upper edge portion 21 of the holding portion 20 does not have the function as the inclined edge portion, but the concave retaining portion 40 provided on the contact surface of the holding portion 20 with the battery post 50 has. Explain the case.

  A retaining portion 40 having a linear groove shape with the inner peripheral surface depressed is formed on the inner peripheral surface of the holding portion 20 that contacts the outer periphery of the battery post 50. Similar to the upper edge portion 21 of the first embodiment, the retaining portion 40 extends while being inclined downward along the entire direction b along the direction b in which the holding portion 20 is to rotate. Further, a plurality of retaining portions 40 are provided and are parallel to each other.

  When the holding part 20 having such a retaining part 40 is fitted into the battery post 50 while being bitten into the battery post 50, the retaining part 40 has a concave shape. Enters. In this state, when the rotational torque generated when the electric wire side terminal is nut-fastened to the stud bolt 12 is transmitted to the holding unit 20, the holding unit 20 tries to rotate in the b direction as in the first embodiment. With respect to the rotation direction b, first, the meat that has entered the retaining portion 40 becomes a barrier, and the edge portion 40A perpendicular to the rotational direction of the retaining portion 40 mainly collides. Similarly, the meat of the battery post 50 that has entered the retaining portion 40 also becomes a barrier against the component force that tends to escape from the battery post 50, and the lower edge portion 40 </ b> B of the retaining portion 40 collides. Further, since the retaining portion 40 extends while being inclined downward in the rotation direction b, the retaining portion 40 is about to come out upward while contacting the flesh of the battery post 50 in which the lower edge portion 40B of the retaining portion 40 enters. The direction of rotation is guided downward. By providing the retaining part 40 in the holding part 20 in this way, it is possible to suppress the holding part 20 from coming out of the battery post 50 by an external force.

[Modification 2 of Embodiment 1]
A second modification of the first embodiment will be described with reference to FIG. Here, the case where the function as an inclined edge part is given to the terminal window 41 which is a through hole provided in the contact surface of the holding part 20 to the battery post 50 will be described.

  A hole-shaped terminal window 41 is formed on the inner peripheral surface of the holding portion 20 that is in contact with the outer periphery of the battery post 50 by punching out and penetrating the inner peripheral surface. Similar to the first modification of the first embodiment, the terminal window 41 is a single hole that is inclined and extended downward along the direction b in which the holding unit 20 is to rotate.

  When the holding part 20 in which such a terminal window 41 is formed is externally fitted to the battery post 50, the meat of the battery post 50 enters the terminal window 41 as in the first modification. In this state, when the rotational torque generated when the electric wire side terminal is nut-fastened to the stud bolt 12 is transmitted to the holding unit 20, the holding unit 20 tries to rotate in the b direction as in the above embodiment. With respect to the rotation direction b, first, the edge 41A serving as the rear end portion in the rotation direction of the terminal window 41 is caught by the meat that has entered the terminal window 41, and the movement of the holding portion 20 is prevented.

  Further, even when the component force is about to escape from the battery post 50, the lower edge 41 </ b> B of the terminal window 41 is caught by the meat of the battery post 50 that has entered the terminal window 41, so that the holding part 20 is about to come out. Movement is hindered. Further, since the terminal window 41 extends while being inclined downward in the rotation direction b, the terminal window 41 comes into contact with the meat of the battery post 50 into which the lower edge 41B of the terminal window 41 entering the upper side enters. The direction of rotation is guided downward. By providing the terminal window 41 in the holding part 20 in this way, the same effect as that of the retaining part 40 of the modified example 1 is exhibited, and the holding part 20 does not come out of the battery post 50 by an external force. can do. In addition, since the terminal window 41 is provided, the battery terminal 10 can be reduced in weight and contribute to cost reduction.

<Embodiment 2>
Next, a second embodiment of the present invention will be described with reference to FIGS.
The present embodiment is different from the first embodiment in the structure of the wire connecting portion 11 and the shape of the upper edge portion 21 of the holding portion 20 that functions as an inclined edge portion. Since other configurations are the same as those in the first embodiment, the description thereof is omitted.

  The wire connection portion 11 is provided in the extending direction of the fastening piece portion 30 of the holding portion 20. Specifically, a crimping barrel 11 </ b> A for connecting a terminal end of a wire bundle (not shown) is provided at the protruding end of one of the pair of fastening pieces 30.

  As shown in FIGS. 7 and 8, the upper edge portion 21 of the holding portion 20 is inclined downward in a direction away from each fastening piece portion 30. Specifically, when the holding unit 20 is expanded as shown in FIG. 9, the upper edge portion 21 of the holding unit 20 extends obliquely upward from the approximate center position x of the holding unit 20 toward the left side. The first inclined edge portion 21A that protrudes and the second inclined edge portion 21B that extends obliquely upward from the substantially central position x toward the right side are symmetric with respect to the substantially central position x. I am doing.

  Next, the procedure for assembling the battery terminal 10 will be described. First, a terminal of a wire bundle (not shown) is crimped to the crimping barrel 11A. Next, the holding part 20 is put on the battery post 50, and the nut 33 is fastened to the post fastening bolt 31 inserted through the bolt insertion hole 32. Thereby, the holding part 20 is reduced in diameter toward the center of the battery post 50 and fixed to the battery post 50.

  Now, in a state where the battery terminal 10 is assembled to the battery post 50, a wire bundle (not shown) that is crimped to the crimping barrel 11A is pushed at the time of vehicle assembly work at another part or at the time of vehicle inspection work, It may be pulled. Then, a rotational torque is applied to the battery terminal 10 in such a way that the holding portion 20 rotates about the axis of the battery post 50 in the right rotation direction c or the left rotation direction d in FIG. Further, since the side surface of the battery post 50 to which the holding portion 20 is fitted is tapered, it will come out from the upper side of the battery post 50 in addition to the rotational torque in the right rotation direction c and the left rotation direction d. A component force is also generated.

  By the way, according to the present embodiment, the upper edge portion 21 is in a state of biting into the battery post 50, and the battery post 50 on the upper end side of the upper edge portion 21 is bitten by the externally held holding portion 20. Thus, the meat protrudes outside the holding portion 20, and the boundary portion with the upper edge portion 21 has a stepped shape. With such a shape, when the holding part 20 tries to come out from the upper side of the battery post 50, first, the upper edge part 21 collides with a step formed by the upper edge part 21 biting in, and the upper part of the battery post 50 is moved to the upper end side. The movement of the holding unit 20 to be moved is restricted.

  Further, in the upper edge portion 21, the first inclined edge portion 21A is inclined downward along the right rotation direction c, and the second inclined edge portion 21B is inclined downward along the left rotation direction d. With this shape, for example, when the holding portion 20 tries to rotate in the rotation direction c, the first inclined edge portion 21A inclined downward contacts the step of the battery post 50 generated by the bite, and the first step is brought into the step. By rotating the inclined edge portion 21A along, the rotation direction of the entire holding portion 20 is guided downward. When the rotation direction is c, the second inclined edge portion 21B is in a direction away from the step of the battery post 50 caused by the second inclined edge portion 21B biting in. Therefore, no component force is generated in any of the upper and lower directions. On the contrary, in the rotation direction d, similarly, the rotation direction of the holding portion 20 is guided downward by the second inclined edge portion 21B, and the first inclined edge portion 21A can be divided in either the upper or lower direction. There is no power.

  With the structure as described above, the holding portion 20 can be prevented from coming out upward from the battery post 50 by the upper edge portion 21 formed in the holding portion 20, and further the holding portion 20 The direction of going around the battery post 50 of the part 20 can be guided to the lower end side of the battery post 50. Further, according to the present embodiment, in addition to the same effects as those of the first embodiment, it is possible to cope with both the left and right rotations in the right rotation direction c and the left rotation direction d, so that an external force is applied in both the left and right rotation directions. For example, it is particularly useful in a crimping type in which a wire bundle is directly crimped and held on the battery terminal 10.

  As mentioned above, although Embodiment 2 of this invention was shown, this invention is not restricted to the said embodiment, For example, the following modifications can also be included. In the following modifications, members similar to those in the above embodiment are denoted by the same reference numerals as those in the above embodiment, and illustration and description thereof may be omitted.

[Modification 1 of Embodiment 2]
A first modification of the second embodiment will be described with reference to FIGS. 10 to 12. In this modification, the structure of the electric wire connection part 11 is different from that of the second embodiment, and is the same stud bolt 12 type as that of the first embodiment. Moreover, the shape of the upper side edge part 21 of the holding part 20 which functions as an inclined edge part differs. Since other configurations are the same as those in the first and second embodiments, the description thereof is omitted.

  As shown in FIGS. 10 and 11, the upper edge portion 21 of the holding portion 20 is inclined downward in a direction away from the stud bolt 12 of the wire connection portion 11. Specifically, when the holding part 20 is expanded as shown in FIG. 12, the upper edge 21 of the holding part 20 is obliquely downward from the substantially central position x of the holding part 20 toward the left. The third inclined edge portion 21E that extends and the fourth inclined edge portion 21F that extends obliquely downward from the substantially central position x toward the right direction, and each of which has a substantially central position x as a boundary. Is symmetrical.

  When the battery terminal 10 is externally fitted to the battery post 50 and a nut (not shown) is fastened to the stud bolt 12, rotational torque in the tightening direction a is applied to the stud bolt 12, and the holding portion 20 tightens around the battery post 50. It tries to turn in the attaching direction c. In addition, after the battery terminal 10 is assembled, the wire bundle connected to the wire-side terminal is pushed or pulled at the time of vehicle assembly work at another part, vehicle inspection work, or the like. As a result, a torque is applied to the battery terminal 10 such that the holding portion 20 rotates in the right rotation direction c or the left rotation direction d in FIG. In addition, since the side surface of the battery post 50 to which the holding portion 20 is fitted is tapered, a component force that tends to escape from the upper side of the battery post 50 is also generated in each rotation direction.

  On the other hand, the upper edge portion 21 of the holding portion 20 of the present embodiment exhibits the same operation as that of the second embodiment. That is, when the holding part 20 tries to come out from the upper side of the battery post 50, the upper edge part 21 is formed at the step of the battery post 50 generated by the upper edge part 21 biting in as in the first and second embodiments. The movement of the holding part 20 which tries to move to the upper end side of the battery post 50 is restricted.

  Further, when the holding portion 20 tries to rotate in the rotation direction c, for example, the third inclined edge portion 21E rotates along the step of the battery post 50 caused by the third inclined edge portion 21E inclined downward. By doing so, the rotation direction is guided downward. Similarly, in the rotation direction d, the rotation direction of the holding portion 20 is guided downward by the fourth inclined edge portion 21F. In both the second embodiment and the present modification, the upper edge 21 that is the inclined edge is inclined downward in the direction away from the force point at which the force to rotate the holding part 20 around the battery post 50 acts. Same in terms. Therefore, it can be said that the effect is the same as that of the second embodiment.

[Modification 2 of Embodiment 2]
A second modification of the second embodiment will be described with reference to FIG. Here, the upper edge portion 21 of the holding portion 20 does not have the function as the inclined edge portion, but the holding surface of the holding portion 20 on the battery post 50 is the same as in the first modification of the first embodiment. A case where the provided concave retaining portion 40 is provided will be described. However, the shape of the retaining portion 40 is different from that of the first modification of the first embodiment.

  On the inner peripheral surface of the holding portion 20 that contacts the outer periphery of the battery post 50, a concave retaining portion 40 having a recessed inner peripheral surface is formed. As shown in FIG. 13, the shape is such that the right edge 40E extends obliquely downward in the right direction from the substantially central position x of the holding portion 20, and obliquely downward in the left direction from the substantially central position x. It has a concave shape including a left side edge portion 40F that extends. Further, the edge on the upper edge 21 side of the retaining part 40 is provided so as to be parallel to the upper edge 21.

  When the holding part 20 having such a retaining part 40 is externally fitted to the battery post 50, the retaining part 40 has a concave shape as in the first modification of the first embodiment. The meat of the battery post 50 enters. In such a state, first, with respect to the component force that tends to escape from the battery post 50, both the right edge 40E and the left edge 40F are within the retaining portion 40 of the battery post 50 positioned above the right edge 40E. By hitting the meat that has entered, the force to escape is suppressed.

  When the holding portion 20 tries to rotate in the rotation direction c, the left edge portion 40F in a state of contacting the meat of the battery post 50 that has entered the retaining portion 40 is guided in the rotation direction along the meat. Thereby, the movement of the entire holding part 20 is guided to the lower end side of the battery post 50. The same effect is exhibited by the right edge 40E of the retaining portion 40 in the reverse rotation direction d. Even with such a retaining portion 40, the holding portion 20 can be kept in an externally fitted state without coming out of the battery post 50 against external forces in both the left and right rotational directions as in the second embodiment.

[Modification 3 of Embodiment 2]
A third modification of the second embodiment will be described with reference to FIG. Here, the function as the inclined edge portion is provided to the terminal window 41 which is a through hole provided in the contact surface of the holding portion 20 to the battery post 50 as in the second modification of the first embodiment. Will be explained. However, the shape of the terminal window 41 is different from that of the second modification of the first embodiment.

  A hole-shaped terminal window 41 is formed on the inner peripheral surface of the holding portion 20 that is in contact with the outer periphery of the battery post 50 by punching out and penetrating the inner peripheral surface. Similarly to the second embodiment, the terminal window 41 corresponds to the right rotation direction c and the left rotation direction d in which the holding unit 20 is to rotate. That is, as shown in FIG. 14, the right edge 41 </ b> E extending obliquely downward from the substantially central position x of the holding part 20 toward the right direction, and obliquely downward from the substantially central position x toward the left direction. It has a hole shape including a left side edge portion 41F extending in the direction. Further, the edge on the upper edge 21 side of the terminal window 41 is provided so as to be parallel to the upper edge 21.

  When the holding part 20 in which such a terminal window 41 is formed is externally fitted to the battery post 50, the meat of the battery post 50 enters the terminal window 41 as in the second modification of the second embodiment. In this state, when an external force in the clockwise rotation direction c is applied to the holding portion 20, the left edge 41F in a state of contacting the meat that has entered the terminal window 41 is guided in the rotation direction along the meat. Thereby, the movement of the entire holding part 20 is guided to the lower end side of the battery post 50. The right edge 41E exhibits the same effect in the reverse rotation direction d. Further, the component force to escape is suppressed by the right edge 41E and the left edge 41F being caught by the meat that has entered the terminal window 41 as in the second modification of the first embodiment. Also by such a terminal window 41, the same effect as the modification 2 of Embodiment 2 can be acquired.

<Embodiment 3>
Next, Embodiment 3 of the present invention will be described with reference to FIG.
This embodiment differs from Modification 1 of Embodiment 2 in the shape of the upper edge portion 21 of the holding portion 20. Since other configurations are the same as those of the first modification of the first and second embodiments, the description thereof is omitted.

  The upper edge portion 21 of the holding portion 20 is inclined upward in a direction away from the stud bolt 12 of the wire connecting portion 11. Specifically, as shown in FIG. 15, the fifth inclined edge portion 21 </ b> G that extends obliquely upward from the substantially central position x of the holding portion 20 toward the right direction, and also obliquely inclined to the left from the substantially central position x. And a sixth inclined edge portion 21H extending in the upward direction, and are symmetrical to each other with a substantially central position x as a boundary.

  As in the second embodiment, an external force in the right rotation direction c or the left rotation direction d is applied to the holding portion 20 having the upper edge portion 21. In addition, a component force that tends to escape from the upper side of the battery post 50 is also generated in each of the rotation directions c and d. On the other hand, the upper edge portion 21 of the holding portion 20 of the present embodiment exhibits the same operation as that of the second embodiment. That is, when the holding part 20 tries to come out from the upper side of the battery post 50, the upper edge part 21 is formed at the step of the battery post 50 generated by the upper edge part 21 biting in as in the first and second embodiments. The movement of the holding part 20 which tries to move to the upper end side of the battery post 50 is restricted.

  Furthermore, when the holding part 20 tries to rotate in the rotation direction c, for example, the fifth inclined edge part 21G rotates along the step of the battery post 50 caused by the fifth inclined edge part 21G inclined downward. By doing so, the rotation direction is guided downward. Similarly, with respect to the rotation direction d, the rotation direction of the holding portion 20 is guided downward by the sixth inclined edge portion 21H.

  Thus, even if the developed shape of the upper edge portion 21 of the holding portion 20 is a valley shape, the same effect as that of the first modification of the second embodiment having a mountain shape is exhibited. However, for example, when the holding part 20 is about to rotate in the rotation direction c, the external force is applied to the side of the holding part 20 where the fifth inclined edge part 21G is formed. However, the external force to rotate is so small that it cannot be compared with the force with which the holding portion 20 tightens the battery post 50. Therefore, although it seems that there is no big difference of effect compared with the modification 1 of Embodiment 2, the inclined edge part along the rotation direction of the external force is provided in the site | part of the holding part 20 to which an external force mainly applies. The present embodiment is theoretically preferable.

  As mentioned above, although Embodiment 3 of this invention was shown, this invention is not restricted to the said embodiment, For example, the following modifications can also be included. In the following modifications, members similar to those in the above embodiment are denoted by the same reference numerals as those in the above embodiment, and illustration and description thereof may be omitted.

[Modification 1 of Embodiment 3]
Modification 1 of Embodiment 3 will be described with reference to FIG. Here, the upper edge portion 21 of the holding portion 20 does not have the function as the inclined edge portion, but the battery of the holding portion 20 as in the first modification of the first embodiment and the second modification of the second embodiment. A case where the concave retaining portion 40 provided on the contact surface with the post 50 is provided will be described. However, the shape of the retaining portion 40 is different from that of the retaining portion 40 described above.

As shown in FIG. 16, the shape of the retaining portion 40 includes a first edge portion 40 </ b> G that extends obliquely upward from the substantially central position x of the holding portion 20 toward the right direction, and the substantially same central position x. And a second edge portion 40H extending obliquely upward in the left direction. Further, the edge on the upper edge 21 side of the retaining part 40 is provided so as to be parallel to the upper edge 21.
Providing such a retaining portion 40 also provides the same effect as that of the third embodiment. Further, it is theoretically more effective than the second modification of the second embodiment for the same reason as the third embodiment.

[Modification 2 of Embodiment 3]
A second modification of the third embodiment will be described with reference to FIG. Here, the function as the inclined edge portion is a through hole provided on the contact surface of the holding portion 20 to the battery post 50 as in the second modification of the first embodiment and the third modification of the second embodiment. A case where the terminal window 41 is provided will be described. However, the shape of the terminal window 41 is different from the terminal window 41 described above.

  As shown in FIG. 17, the terminal window 41 includes a first edge portion 41G extending obliquely upward from the approximate center position x of the holding portion 20 toward the right direction, and also from the approximate center position x to the left direction. And a second edge 41H extending obliquely upward. Further, the edge on the upper edge 21 side of the terminal window 41 is provided so as to be parallel to the upper edge 21. Even if it does in this way, the effect similar to the modification 3 of Embodiment 2 can be anticipated. Further, for the same reason as in the third embodiment, it is theoretically more effective than the third modification of the second embodiment.

<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.

  (1) In the above embodiment, when the upper edge portion 21 of the holding portion 20 has a function as the inclined edge portion, the shape of the upper edge portion 21 is a shape that is inclined downward with respect to one direction, Or although it was set as the mountain shape or valley shape which has one edge which inclines downward in the left-right both directions, it is not restricted to this, For example, the shape where several mountain valley shapes, such as a sawtooth, may be sufficient.

  (2) In the above-described embodiment, the retaining portion 40 is formed by the concave portion, but is not limited thereto, and may be formed by, for example, a convex portion.

DESCRIPTION OF SYMBOLS 10 ... Battery terminal 11 ... Electric wire connection part 11A ... Crimp barrel 12 ... Stud bolt 20 ... Holding part 21 ... Upper edge part 22 ... Lower edge part 30 ... Fastening piece part 40 ... Detachment part 41 ... Terminal window 50 ... Battery post

Claims (6)

A holding part that forms an end ring that is fitted to a battery post having a tapered outer peripheral surface that gradually decreases in diameter toward the upper end side;
A pair of fastening pieces extending oppositely from both ends of the holding portion;
An electric wire connecting portion integrally provided in the holding portion and connected to an electric wire;
A battery terminal comprising: a fastening means for holding the pair of fastening pieces in a direction approaching each other;
The battery terminal according to claim 1, wherein the holding portion is formed with an inclined edge portion that intersects with a circumferential direction of the battery post. The electric wire connecting portion includes a terminal fixing bolt for screwing and fixing the electric wire side terminal connected to the terminal portion of the electric wire,
The said inclined edge part is made into the inclined shape which becomes the downward direction ahead of the relative rotation direction with respect to the battery post of the said holding part at the time of the said terminal fixing bolt clamp | tightening. Battery terminal.   2. The battery terminal according to claim 1, wherein the inclined edge portion has a shape inclined symmetrically in both directions from a substantially middle position in the extending direction of the holding portion.   The battery terminal according to any one of claims 1 to 3, wherein the inclined edge portion is an upper edge portion of the holding portion.   4. The inclined edge portion is formed by an edge portion of a concave portion provided on a surface of the holding portion that is in contact with the outer peripheral surface of the battery post. The battery terminal according to item.   The said inclined edge part is formed of the inner peripheral part of the hole penetrated in the side surface which contact | connects the said outer peripheral surface of the said battery post of the said holding part, The Claim 1 thru | or 3 characterized by the above-mentioned. The battery terminal according to item.

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