JP2003151650A - Battery terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vertical fastening battery terminal, in which the number of parts and the number of assembly steps are decreased to simplify the manufacturing process. SOLUTION: The battery terminal 1 comprises: a terminal body 2 to which an electrode fitting part 6 assembled with a periphery of a battery post 21 is disposed; a fastening member 5 attached to bridge between open end parts 7A, 7B of the electrode fitting part 6; a fastening bolt 4 that passes through the fastening members 5 and moves the fastening member 5 by a rotational operation to narrow the distance between the open end parts 7A, 7B. A nut hole part 12 to which the fastening bolt 4 is assembled is disposed at the terminal body 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery terminal.

[0002]

2. Description of the Related Art FIG. 26 shows a battery terminal 100 attached to a battery post P projecting from the upper surface of a battery B. This battery terminal 100
Is a so-called lateral tightening method, and tightens the tightening bolts 104 from a horizontal direction that is substantially orthogonal to the protruding direction of the battery posts P. The battery terminal 100 is provided with an electrode fitting portion 102 that is attached to a battery post and a pair of open end portions 101 that tighten the electrode fitting portion 102. Both open ends 101
Pass the tightening bolt 104 through the bolt hole provided in
The electrode fitting portion 102 is fixed to the battery post P by assembling the nut 103 and then tightening the impact wrench L. At this time, the impact wrench L is operated in the horizontal direction parallel to the assembling direction of the tightening bolt 104.

By the way, in recent years, the number of parts provided in the engine room of an automobile has become extremely large, and many objects such as an air duct and electric wires are laid around the battery. In such a situation, when the tightening bolts 104 are arranged in the horizontal direction and the nut 105 is tightened with the impact wrench L laid sideways as described above, the impact wrench L interferes with other parts. , It becomes difficult to tighten. In some cases, there is no space for installing the impact wrench L in the horizontal direction, and the tightening work cannot be performed.

Therefore, in order to solve the problem of the horizontal tightening type battery terminal 100, a vertical tightening type battery terminal 107 as shown in FIG. 27 has been developed. This battery terminal 107 is actually open flat 6-2
The electrode fitting part 1 disclosed in Japanese Patent No. 8994.
By providing the tightening member 112 for tightening 08, the tightening bolt 106 is assembled from above the battery post P. Therefore, since the impact wrench L is operated from above the tightening bolt 106,
There is an advantage that tightening work is easy.

[0005]

However, in the above-described vertical tightening type battery terminal 107, the terminal body 1
In addition to 10, the stud bolt 111, the tightening bolt 106, the nut 109, and the tightening member 112 which is not necessary in the lateral tightening method, at least five parts are required (details are shown in the drawing). However, in addition to the above-mentioned configuration, since the C ring that prevents the tightening bolt 106 and the tightening member 112 from coming off is provided, the battery terminal 107 is composed of a total of six parts. .). In addition, as the number of tightening members 112 increases, the number of assembling operations also increases. Therefore, there is room for reducing the manufacturing process and improving the assembling operability. The present invention has been made in view of the above circumstances, and an object thereof is to provide a vertical tightening type battery terminal capable of simplifying the manufacturing process by reducing the number of parts and the number of assembly steps. It is in.

[0006]

Means for Solving the Problem, Action of the Invention, and Effect of the Invention In order to solve the above-mentioned problems, the first invention is to be assembled around a battery post and provided with a pair of open ends for opening. A terminal main body provided with an electrode fitting portion, a fastening member attached so as to bridge between the both open end portions, a fastening member penetrating the fastening member and being rotated to operate the fastening member. A battery terminal provided with a tightening bolt that is moved to reduce a separation distance between the two open ends and reduce a hole diameter of the electrode fitting portion, wherein the tightening bolt is rotated around the terminal body. It is characterized in that a nut hole to be attached is provided. According to the first aspect of the present invention, since the nut hole is provided in the terminal body, the nut, which is one of the components required for the conventional battery terminal, becomes unnecessary. Therefore, the number of parts is reduced and the number of assembling steps is also reduced, so that the manufacturing process can be simplified.

In a second aspect based on the first aspect, the terminal body is provided with a stud bolt for mounting an electric wire to which an end portion of the electric wire is attached, and the terminal body is provided with the electrode fitting portion. The nut hole portion is provided at a position between the nut hole portion and the stud bolt. In the first invention, for example, in the terminal body, the stud bolt and the nut hole portion can be provided at positions facing each other with the electrode fitting portion interposed therebetween. With that configuration,
Since the open end of the electrode fitting part is located above the nut hole, both open ends must be provided in a direction away from the terminal body (for example, in a T shape). Structure becomes complicated, and the area required for removing the member also increases. Therefore, in the second invention, since the nut hole portion is provided between the electrode fitting portion and the stud bolt, one side of the pair of open end portions is the fixed end portion connected to the terminal body, and the other side. Only the free end. Therefore, the mold for manufacturing the terminal main body is simplified, the material removal is improved, and the raw material cost is reduced.

According to a third aspect of the present invention, the terminal main body provided around the battery post and provided with an electrode fitting portion having a pair of open ends and opening, and the open ends are bridged. And a tightening member that is attached through the tightening member, and the tightening member is moved by rotating the nut and the tightening member is moved to reduce the distance between the two open ends to reduce the hole diameter of the electrode fitting portion. A battery terminal provided with a tightening bolt to be reduced in size, wherein the tightening bolt also serves as a stud bolt for mounting an electric wire to which an end of the electric wire is attached. According to the third aspect of the invention, the tightening bolt, which is one of the necessary parts for the battery terminal, also serves as the stud bolt for mounting the wire to which the end of the wire is attached, so the number of parts is reduced and the assembly process The number also decreases. Thereby, the manufacturing process can be simplified.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be described in detail with reference to the drawings, but the technical scope of the present invention is not limited by the following embodiments, and its gist Can be variously modified and implemented without changing. Moreover, the technical scope of the present invention extends to an equivalent range.

<First Embodiment> Next, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows the battery terminal 1 of the first embodiment. This battery terminal 1 has a battery post 21.
The terminal body 2 attached to the stud, the stud bolt 3 for attaching the end portion of the electric wire, the tightening member 5, the tightening bolt 4, and C.
It is composed of five members including a ring 26 (only shown in FIG. 18).

Of these, the structure of the terminal body 2 will be described with reference to FIGS. The terminal body 2 is provided with a substantially annular electrode fitting portion 6 that is assembled around the battery post 21. The electrode fitting portion 6 is provided on the side of the terminal body 2 so as to project, and has a substantially annular shape that opens in both upper and lower directions. More specifically, the shape of the electrode fitting portion 6 is such that the upper end portion of the cone shape is cut off and the side surface whose lower end side is larger than the upper end side is trapezoidal. Further, the electrode fitting portion 6 is provided with a pair of open end portions 7A and 7B. Of these, the open end 7A on one side is the fixed end 7A.
A, which is in a state of being connected to and fixed to the terminal body 2 (note that the names 7A and 7B are referred to as “open end” or “free end, fixed” for convenience of description. Both ends are used.). On the other hand, the open end portion 7B on the other end side is a free end portion 7B, and can be elastically displaced in a direction of approaching or separating from the fixed end portion 7A. Further, on the inner peripheral surface of the electrode fitting portion 6, groove portions 8 are provided in the vertical direction at regular intervals along the circumferential direction so that a good fixing state with respect to the battery post 21 can be maintained. (See FIG. 9 and the like).

Further, in the terminal body 2, the electrode fitting portion 6
Position opposite to the side where is provided (back side in Fig. 1)
A stud bolt 3 for mounting an electric wire is vertically provided on this. As shown in FIG. 8, the stud bolt 3 is inserted between the mounting holes 11 formed in the upper plate portion 10 of the main body, and then the lower plate portion 9 of the main body is folded so that the stud bolts 3 are provided between the plate portions 9 and 10. It is fixed in a sandwiched state.
Further, as shown in FIG. 2, a nut hole portion 12 is provided at a position between the electrode fitting portion 6 and the stud bolt 3 in the terminal body 2. This nut hole 12 is shown in FIG.
As shown in, the tightening bolt 4 is provided so as to be vertically tightened from the upper direction of the main body. Further, on the side of the nut hole portion 12 of the terminal body 2, a side edge portion of the body upper plate portion 10 is folded up and provided with a positioning protrusion 20. A temporary locking groove 20A is provided on the side of the positioning protrusion 20.

Further, FIG. 10 shows a developed view of the terminal body 2. In the terminal body 2 of the present embodiment, the nut hole portion 12 is provided at a position between the electrode fitting portion 6 and the stud bolt 3. Therefore, the fixed end 7A on one side of the pair of open ends 7A and 7B is connected to the terminal body 2, and only the free end 7B on the other side is protruded from the terminal body 2. Becomes Therefore, the structure of the mold for manufacturing the terminal main body 2 has a simple L-shape as shown in FIG. 10, the efficiency of material removal is improved, and the raw material cost can be reduced. .

Next, the tightening member 5 will be described with reference to FIGS. 11 to 17. As shown in FIG. 11, the fastening member 5 includes a ceiling plate portion 13 and leg pieces 22 </ b> A, 22 </ b> B, 23 </ b> A, 2 hanging from the four corners of the ceiling plate portion 13.
It has a table shape with 3B. Ceiling board part 13
A mounting hole 14 through which the tightening bolt 4 is inserted is provided in the. Also, the four leg pieces 22A, 22B, 23A, 2
Of the 3B, the pair of tightening leg pieces 22A and 22B located on the left side in FIG. 11 includes the open end portions 7 of the electrode fitting portion 6.
It is attached so as to bridge between A and 7B. Further, in the tightening leg piece 22A on the side contacting the free end portion 7B, from the front surface portion 15 provided on the front surface of the ceiling plate portion 13,
A tapered guide surface 16 having a width that narrows downward is provided. The guide surface 16 moves the free end portion 7B toward the fixed end portion 7A as the fastening bolt 4 is tightened. Also, in both tightening leg pieces 22A, 22B,
The side edges that are outward from each other are bent at substantially right angles to form reinforcing edges 24 in order to improve the strength of the leg pieces 22A and 22B.

Further, as shown in FIG. 14, the ceiling plate portion 13
In the rear surface portion 18 whose rear side is bent, a groove portion 19 is provided near the stabilizing leg piece 23A located behind the tightening leg piece 22A. The positioning protrusion 20 of the terminal main body 2 is fitted into the groove portion 19 to stabilize the position of the fastening member 5. In addition, near the tip of the stabilizing leg piece 23A, the other stabilizing leg piece 23A
A temporary locking protrusion 25 is provided toward B. The temporary locking projection 25 is fitted into the temporary locking groove 20A of the positioning protrusion 20 so that the terminal body 2 and the fastening member 5 are at the temporary locking position (the fastening member 5 is the electrode fitting portion 6). Is not sufficiently tightened and is attached to the battery post 21 at an attachment position where the battery terminal 1 can be attached and detached.

Further, as shown in FIG. 18, a male thread is not formed on the upper end of the shaft portion of the tightening bolt 4, and a retaining portion 4A is not formed.
Is provided. When the C ring 26 is fitted in the retaining portion 4A with the tightening bolt 4 inserted in the mounting hole 14, the retaining bolt 4 and the tightening member 5 are in the retaining state.

Next, the operation and effect of this embodiment configured as described above will be described. As shown in FIG. 18, after the tightening bolt 4 is inserted into the mounting hole 14 of the tightening member 5, the C ring 26 is fitted into the retaining portion 4A of the tightening bolt 4 so that the tightening member 5 and The fastening bolts 4 are integrated with each other (at this time, the fastening bolts 4 are allowed to rotate in the mounting hole 14). Next, the two open end portions 7 are provided between the two fastening leg pieces 22A and 22B of the fastening member 5.
A and 7B are sandwiched between (in other words, by both the clamping leg pieces 22A and 22B, both open end portions 7A and 7B are
The connecting member 5 and the tightening member 5 to the terminal body 2
Attach to.

At this time, the positioning projection piece 20 of the terminal body 2 is fitted in the groove portion 19 provided in the rear surface portion 18 of the fastening member 5. In this way, the position of the tightening member 5 is defined, and the rotation of the tightening member 5 is restricted by the rotational force when the tightening bolt 4 is rotated. Here, the tip of the tightening bolt 4 is inserted into the nut hole 12 and rotated. Tightening bolt 4
With the rotation, the tightening bolt 4 enters the inner side of the nut hole portion 12, and the tightening member 5 is deeply fitted into the terminal body 2. When the rotating operation of the tightening bolt 4 progresses by a predetermined amount, the temporary locking projection 25 provided on the stabilizing leg piece 23A of the tightening member 5 is fitted into the temporary locking groove 20A.
The battery terminal 1 is assembled in the temporarily locked state.
Further, at this time, as shown in FIG.
The guide surface 16 is lightly in contact with the outside of the upper end of the free end 7B. At this time, the electrode fitting portion 6
Is in a state of being sufficiently opened beyond the outer diameter of the battery post 21, and the battery terminal 1 is attachable to and detachable from the battery post 21.

The battery terminal 1 in the temporarily locked state as described above is carried into a place where the assembling process with the battery post 21 is carried out. After the electrode fitting portion 6 of the battery terminal 1 is fitted on the outer periphery of the battery post 21, the tightening bolt 4 is rotated and tightened from above the battery terminal 1 using an impact wrench (not shown). Then, with the movement of the tightening bolt 4, the tightening member 5 descends with respect to the terminal body 2. At this time, as shown in FIG. 20, the guide surface 16 presses the free end portion 7B of the electrode fitting portion 6 toward the fixed end portion 7A, thereby moving the open end portions 7A and 7B in the approaching direction. To do.

By this movement, the hole diameter of the electrode fitting portion 6 is narrowed, and the battery post 21 is tightened, whereby the battery terminal 1 and the battery post 21 are fixed (the terminal body 2 and the tightening member 5 at this time). The position is called the final locking state). At this time, the groove portion 8 provided in the electrode fitting portion 6 smoothly wraps the electrode fitting portion 6 around the battery post 21 and increases the degree of adhesion to the battery post 21. As described above, according to the present embodiment, since the nut hole portion 12 is provided in the terminal body 2, the nut 10 that is necessary for the conventional battery terminal 107.
The vertical tightening type battery terminal 1 can be configured without using 9. As a result, the number of parts and the number of assembly steps can be reduced, and the manufacturing process can be simplified.

Further, in the present invention, for example, the stud bolt and the nut hole portion may be provided at positions facing each other across the electrode fitting portion in the terminal body. However, with such a configuration, since the open end of the electrode fitting portion is located above the nut hole, both open ends are separated from the terminal body (for example, in a T shape). Since it has to be provided, the structure of the terminal body becomes complicated, and the area required for removing the member also becomes large. In order to avoid this inconvenience, in the terminal main body 2 of the present embodiment, the nut hole portion 12 is provided between the electrode fitting portion 6 and the stud bolt 3, and therefore, of the pair of open end portions 7A, 7B. One side is a fixed end portion 7A connected to the terminal body 2, and only the other side is a free end portion 7B. Therefore, the mold for manufacturing the terminal main body 2 has a simple L-shaped simple structure, the efficiency of material removal is improved, and the raw material cost can be reduced.

<Second Embodiment> Next, a second embodiment of the present invention will be described with reference to FIGS.
In addition, in the present embodiment and the first embodiment, the same configurations or configurations having the same effects are denoted by the same reference numerals, and description thereof will be omitted. FIG. 21 shows a state in which the battery terminal 30 of the second embodiment is temporarily locked. The battery terminal 30 includes a terminal body 31, a fastening bolt 34 provided on the terminal body 31, and a fastening member 33.
And a tightening nut 32. In this embodiment, the tightening bolt 34 integrated with the terminal body 31 also serves as a wire mounting stud bolt for mounting the end of the wire.

The terminal main body 31 is provided with a substantially annular electrode fitting portion 6 to be assembled around the battery post 21. The electrode fitting portion 6 includes a pair of open end portions 7A, 7A.
B is provided. The fixed end portion 7A on one end side of the both open end portions 7A and 7B is connected to the terminal main body 31 via the connecting portion 38.
Is continuous with the side wall 37. On the other hand, the other end is the free end 7
B (see FIGS. 22 and 23). Further, the tightening bolt 34 is provided so as to project upward at substantially the center of the base portion 36 of the terminal body 31. The tightening member 33 includes a tightening portion 41 that tightens both open ends 7A and 7B,
An attachment portion 40 that is fixed to the terminal body 31 and an electric wire connection portion 42 that connects electric wires are provided (see also FIG. 25). Of these, the mounting portion 4 having a substantially square shape
As shown in FIG. 25, a mounting hole 39 into which the tightening bolt 34 is inserted is provided at 0.

Further, a fastening portion 41 is provided on one side (left side in FIG. 25) of the mounting portion 40. Tightening part 41
Is folded up with respect to the mounting portion 40, then bent diagonally forward, and then folded back downward. Further, in the tightening portion 41, the front surface portion 43 folded back is provided with an assembling groove portion 45, and by this assembling groove portion 45, at both left and right end portions of the front surface portion 43,
A pair of tightening leg pieces 47A and 47B are provided. Of the two tightening leg pieces 47A and 47B, the inner side edge of the tightening leg piece 47A, which is in contact with the free end portion 7B, has a tapered guide surface 44 which becomes narrower as it goes downward. It is provided. In addition, in the mounting portion 40, a wire connecting portion 42 is bent and formed so as to hang down from the mounting portion 40 on the side facing the side where the tightening portion 41 is provided.

Next, the operation and effect of this embodiment configured as described above will be described. Prior to assembling the terminal body 31 and the fastening member 33, the fastening bolt 34
Is assembled to the terminal body 31 and integrated. Next, as shown in FIG. 21, the tightening bolts 34 of the terminal body 31 are
After inserting the mounting hole 39 of the tightening member 33, the tightening nut 32 is rotated from above the tightening bolt 34.
The tightening nut 32 is rotated to a predetermined position, and the rotation operation is completed when the guide surface 44 comes into contact with the upper end edge of the free end portion 7B. During this rotation operation, the base end portion of the wire connecting portion 42 contacts the base portion 36 of the terminal body 31, whereby the rotation of the tightening member 33 is restricted. . In this way, when the battery terminal 30 is assembled in the temporarily locked state, it is carried into the work place where the assembly operation with the battery post 21 is performed.

When mounting on a battery of an automobile, the electrode fitting portion 35 is fitted from above so as to be assembled around the battery post 21, and the tightening nut 32 is tightened from above the battery terminal 30 with an impact wrench (not shown). . When the tightening member 33 descends with the rotation of the tightening nut 32, the free end portion 7B pressed by the guide surface 44 moves toward the fixed end portion 7A and the distance between them is reduced. As a result, the hole diameter of the electrode fitting portion 35 is reduced, the battery post 21 is tightened, and the battery terminal 30 is fixed to the battery. As described above, according to the present embodiment, the tightening bolt 34 also serves as the stud bolt for mounting the electric wire to which the end of the electric wire is attached, so that the number of parts and the number of assembling steps can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of a battery terminal according to a first embodiment.

[Figure 2] Top view of terminal body

[Figure 3] Side view of the terminal body

[Figure 4] Bottom view of terminal body

FIG. 5: Side view of terminal body

[Figure 6] Rear view of the terminal body

7 is a cross section taken along line BB in FIG.

8 is a sectional view taken along line CC in FIG.

9 is a cross section taken along line AA in FIG.

FIG. 10: Development view of terminal body

FIG. 11 is a perspective view of a fastening member.

FIG. 12 is a side view of the fastening member.

FIG. 13 is a front view of the fastening member.

FIG. 14 is a rear view of the fastening member.

FIG. 15 is a plan view of the tightening member.

16 is a sectional view taken along line DD of FIG.

17 is a sectional view taken along line EE in FIG.

FIG. 18 is an exploded view of the battery terminal (partially sectional view)

FIG. 19 is a cross-sectional view showing the main part of the engagement portion between the terminal body and the fastening member in the battery terminal in the temporarily locked state.

FIG. 20 is a cross-sectional view showing a main part of an engaging portion between a terminal body and a fastening member in a battery terminal in a fully locked state.

FIG. 21 is a perspective view of a battery terminal according to the second embodiment.

FIG. 22 is a side view of the terminal body.

FIG. 23 is a plan view of the terminal body.

FIG. 24 is a front view of the terminal body.

FIG. 25 is a perspective view of a fastening member.

FIG. 26 is a perspective view of a conventional lateral tightening type battery terminal.

FIG. 27 is a perspective view of a conventional vertically tightened battery terminal.

[Explanation of symbols]

1,30 ... Battery terminal 2, 31 ... Terminal body 3, 34 ... Stud bolt 4, 34 ... Tightening bolts 5, 33 ... Tightening member 6 ... Electrode fitting part 7A ... Fixed end (open end) 7B ... Free end (open end) 12 ... Nut hole 21 ... Battery post

Claims (3)

[Claims] 1. A terminal body which is assembled around a battery post and which has an electrode fitting portion provided with a pair of open ends and which is opened, and a clamp attached so as to bridge between the both open ends. A fastening member and a fastening bolt that is provided so as to penetrate the fastening member and that moves the fastening member by a rotating operation to reduce the distance between the open ends and reduce the hole diameter of the electrode fitting portion. And a nut hole portion for turning the tightening bolt, the battery terminal being provided with. 2. The terminal main body is provided with a stud bolt for mounting an electric wire to which an end of the electric wire is attached, and at a position between the electrode fitting portion and the stud bolt in the terminal main body, The battery terminal according to claim 1, wherein the nut hole portion is provided. 3. A terminal main body which is assembled around a battery post and which has an electrode fitting portion provided with a pair of open ends and which is opened, and a clamp which is attached so as to bridge between the both open ends. A fastening member and a fastening which is provided so as to penetrate the fastening member and which moves the fastening member by rotating the nut to reduce the distance between the two open end portions and reduce the hole diameter of the electrode fitting portion. A battery terminal provided with a bolt for use, wherein the tightening bolt also serves as a stud bolt for mounting an electric wire to which an end of the electric wire is attached.