JPH0594961U - Battery terminal - Google Patents

Abstract

(57) [Summary] [Purpose] The battery terminal can be attached to the battery post with a lever with one touch. [Structure] An annular electrode fitting portion externally fitted to the battery post is continuously provided at the rear end of the electric wire connecting board portion, and a pair of left and right tightening members are respectively provided at the open free ends of the electrode fitting portion rear end. Attached plate parts are connected in series, and the left and right tightening plate parts are tilted so that the gap expands toward the rear end, and the front end part is rotatable on the left and right tightening plate parts of the terminal body. A lever that is attached to the shaft, the lever is provided with both side wall portions positioned on the outer surface side of the left and right tightening plate portions, and the both side wall portions are provided with an inclination corresponding to the inclination angle of the tightening plate portion, When the lever is rotated, the tilt direction of the lever is reversed back and forth, and the wide rear end sides of the left and right tightening plate parts are tightened by the narrow side walls.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a battery terminal attached to an electrode (battery post) of a battery mounted on an automobile or the like, and particularly to a lever instead of a bolt and nut fixing method using a tightening tool such as an impact wrench. By adopting the formula, the battery terminal can be fixed to the battery post with one touch without using any tools.

[0002]

[Prior Art]

 Conventionally, as shown in FIG. 12, a battery terminal of this type has a battery post (hereinafter abbreviated as a post) 2 and an electrode fitting of a battery terminal (hereinafter abbreviated as a terminal) 3 as shown in FIG. The mating portion 3a is externally fitted, the bolt 4 is passed through the bolt holes of the base plate portion 3b and the tightening plate portion 3c in the horizontal direction, and the nut 6 is placed horizontally with the impact trench 5 lying sideways with respect to the bolt 4. The terminal 3 is fixed to the post 2 by tightening from the direction and pressing the electrode fitting portion 3 a to the post 2.

In recent years, the number of installed parts in the engine room of automobiles has become extremely large and the density has increased, and there are cases in which there are protrusions (eg, air ducts) higher than the posts around the battery and the handling of electric wires and the like. Many. In such a situation, if the bolt 4 is arranged horizontally and the nut 6 is tightened with the impact wrench 5 lying down as described above, the impact wrench interferes with other parts and is difficult to tighten. At the same time, in some cases, there is no space to install the impact wrench horizontally, so tightening may not be possible.

Further, when the impact wrench interferes with other parts, for example, when the + side post is tightened and the impact wrench comes into contact with the − side post, a short circuit occurs, which is the worst case. In some cases, a vehicle fire may occur. Therefore, in order to prevent the above interference, there arises a problem that the shapes of other parts must be changed.

To solve the above problem, as shown in FIGS. 13 (A) and 13 (B), the terminal body 3 ′ is divided into two parts, and the first terminal has one side semi-circular arc part of the annular electrode fitting part. The shaft 7 attached to the second terminal piece 3'b is formed in the long groove 3'a-1 of the first terminal piece 3'a. For a battery having a structure in which the links 8 and 8 are fixed to both ends of the shaft 7, the connecting rods 9 are fixed to the other ends of the links 8 and 8, and both ends of the connecting rods 9 are locked to the cover 10. Electrical connections have been proposed. (Jpn. Pat. Appln. KOKAI No. 4-14863)

In the above-described battery electrical connector, the cover 10 is rotated about the connecting rod 9 as a fulcrum so that the first terminal piece 3'a and the second terminal piece 3'b are brought close to each other. I'm trying to pinch.

[0007]

[Problems to be solved by the device]

 The above-mentioned electric connector for a battery has an advantage that it can be fixed only by pushing down the cover 10 without using a fixing method using bolts and nuts. However, the terminal body is divided into two, and the link and the connecting rod are It has a drawback that the structure is very complicated, such as required, the number of parts is large, and the manufacturing cost is high. In addition, there are many assembly processes for these many parts, and there is a drawback that the assembly work is troublesome. Further, since the cover 10 is shaped so as to cover the entire terminal body, the cover 10 is large, so that there is a drawback that the operating force of the cover 10 also requires a large force.

The present invention has been made in view of the above-mentioned problems. First, the terminal is integrated without being divided, and the electrode fitting part of the terminal is pressed against the battery post. The lever is rotatably supported on the terminal, and the structure is extremely simple. The size is reduced, the number of parts and the number of assembly steps are reduced, and the tightening operation can be performed with a small operating force.

[0009]

[Means for Solving the Problems]

 That is, according to the present invention, an annular electrode fitting portion externally fitted to a battery post is continuously provided at the rear end of the electric wire connecting board portion, and the left and right open ends of the rear end of the electrode fitting portion are left and right respectively. A pair of tightening plate parts are connected in series, and the left and right tightening plate parts are tilted so that a gap expands toward the rear end, and the left and right tightening plate parts of the terminal body are connected to the front end parts. A lever rotatably attached to the lever, and both side wall portions located on the outer surface side of the left and right tightening plate portions are provided on the lever, and both side wall portions are tilted corresponding to the tilt angle of the tightening plate portion. A battery terminal is provided in which the tilting direction of the lever is reversed back and forth when the lever is rotated, and the wide rear end sides of the left and right tightening plate parts are tightened by the narrow side walls. I will do it.

Both side walls of the lever have a bolt mounting hole projecting from the front side of the bottom wall having an inner dimension A ′ having substantially the same width as the outer dimension A of the front ends of the pair of left and right tightening plate portions. The sandwiching rib portion having a substantially square shape and the outer fitting portion which is continuous with the rear end of the sandwiching rib portion and expands outward toward the rear side. The outer dimension B of the rear ends of the pair of left and right tightening plate portions is formed. And the inner dimension B ′ of the rear end of the outer fitting portion is substantially the same, and an operating portion is provided upright from the rear end of the bottom wall portion. When the operating portion is rotated 90 °, the lever is closed. The sandwiching rib portion having the inner dimension A ′ is displaced to the position of the outer dimension B of the pair of left and right tightening plate portions, and the left and right tightening plate portions are tightened in the directions in which they approach each other.

Alternatively, in the lever, both side wall portions are erected at both ends of a bottom wall portion whose width increases toward the rear end, and the inner dimension A ′ of the front end of the both side wall portions is set to the front end of the tightening plate portion. While making it approximately the same as the outer dimension A of B, set the inner dimension of both side walls of the portion corresponding to the outer dimension B of the rear end of the tightening plate to B'and rotate the lever 180 °. The inner dimension A'of the front end of the lever is displaced to the position of the outer dimension B of the rear end of the tightening plate portion so that the left and right tightening plate portions are tightened in the direction of approaching each other.

[0012]

[Action]

 In the battery terminal of the present invention described above, the inclination direction of the lever matches the inclination direction of the tightening plate portion before mounting on the battery post, and the tightening plate portion is not tightened. Easy to attach to battery post with open end. When the lever is rotated after the above installation, the inclination direction of both side walls of the lever is reversed, and the inclination direction of the tightening plate part is reversed, and the width of the narrow side walls of the lever is increased. It is possible to tighten by tightening the tightening plate parts close to each other.

[0013]

【Example】

 Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. 1 to 3 show a first embodiment, a battery terminal 11 comprises a terminal body 12 and a tightening lever 13 as shown in FIG. It is rotatably attached to the side through a bolt 25. The terminal main body 11 is a stat type, and is formed by bending a single metal plate as shown in the figure, and a stud bolt 14 is projectingly provided on the wire connection board portion 15A at one end. The annular end of the terminal (not shown) crimped to the electric wire is externally fitted and tightened with a nut to connect.

The terminal body 12 has a shape in which an upper portion and a lower portion, which are generally in the same shape, are bent at a curved portion on the rear end side and are vertically opposed to each other. Specifically, both the upper and lower parts are provided with substantially rectangular wire connection board parts 15A and 15B at their front ends, and both sides of the upper wire connection board part 15A are bent downward and the lower part between them is inserted. The electric wire connecting board portion 15B is inserted.

From the rear ends of the electric wire connecting board portions 15A and 15B, annular electrode fitting portions 16A and 16B are continuously provided. Cylindrical portions 16A-1 and 16B-1 are provided upright along the inner peripheral edge of these electrode fitting portions 16A and 16B, and these cylindrical portions 16A-1 and 16B-1 are attached to the outer peripheral surface of the battery post 2. I try to press against.

The rear ends of the ring-shaped electrode fitting portions 16A, 16B are in an open state as shown in the drawing, and the tightening plate portions 17A, 17A ', 17B, 17B which are continuous with the respective free ends. 'Is provided, and the tightening plate portions 17A and 17B, 17A' and 17B 'are connected by vertical bending portions 17C and 17C'.

A space S is provided between the left and right tightening plate portions 17A and 17A ', 17B and 17B', and the tightening plate is formed so that the space S widens toward the bent portions 17C and 17C '. The parts 17A to 17B 'are inclined. That is, from the dimension A between the outer ends of the left and right tightening plate portions 17A and 17A 'on the side that is continuous with the free end side of the electrode fitting portions 15A and 15B, the tip (rear end) on the side of the bent portions 17C and 17C' The dimension B between the outer ends of the left and right tightening plate portions 17A and 17A 'in () is large (A <B). The same applies to the left and right tightening plates 17B and 17B 'on the lower side.

Bearing portions 18A and 18A 'which are bent downward are provided at substantially central portions of the outer ends of the above left and right tightening plate portions 17A and 17A', and shaft holes 18A-1 are provided in the bearing portions 18A and 18A '. , 18A′-1 is formed. (Note that 18A 'and 18A'-1 are not shown in the figure.)

As illustrated, the lever 13 is provided with a bottom wall portion 19, an operation portion 20 projecting upward from a rear end of the bottom wall portion 19, and a front portion of both side portions of the bottom wall portion 19. The sandwiching rib portions 21A, 21B having a substantially square shape and the outer fitting portions 22A, 22B which are continuous with the rear ends of the sandwiching rib portions 21A, 21B and which are inclined and protrude in a direction away from each other are integrally formed. There is. That is, the rear side portions of both side wall portions are inclined to form a cam shape. Bolt holes 21A-1 and 21B-1 are formed in the sandwiching rib portions 21A and 21B.

The length of the bottom wall portion 19 is set to be larger than the length of the tightening plate portions 17A to 17B ′ of the terminal body 12. The width A ′ of the bottom wall portion 19, that is, the inner dimension A ′ of the sandwiching rib portions 21A and 21B is set to be substantially the same as the outer dimension A of the tightening plate portions 17A and 17A ′ and 17B and 17B ′. ing. On the other hand, the inner dimension B'of the rear ends of the outer fitting portions 22A and 22B is set to be substantially the same as the outer dimension B of the rear ends of the tightening plate portions 17A and 17A 'and 17B and 17B'.

As shown in FIG. 2, in the lever 13, the bottom wall portion 19 is arranged below the lower clamping plate portions 17B and 18B ′ of the terminal body 12, and the sandwiching rib portions 21A and 21B are arranged. B is placed so as to be sandwiched between the left and right tightening plate portions 17A and 17B, 17A 'and 17B', and the bolt 25 is passed through the bolt holes 21A-1, 18A-1, 18A'-1, 21B-1. A nut (not shown) is attached to the tip, and the lever 13 is rotatably attached to the terminal body 12.

With the lever 13 attached, the rear side of the tightening plate portions 17A to 17B ′, which is widened to the outside, is sandwiched between the outer fitting portions 22A and 22B of the lever 13, and these outer fitting portions 22A and 22B are Since 22B is formed so as to expand outward, it is not tightened in the left-right direction, and the space S between the left and right tightening plate portions 17A and 17A 'and 17B and 17B' is widened toward the rear side. Therefore, the free ends of the electrode fitting portions 16A and 16B are open. Further, in this state, the operation portion 20 projects substantially vertically upward.

A spacer 40 is interposed in order to secure the space S between the tightening plate portions 17A and 17A ′ and 17B and 17B ′.

Next, the operation of assembling the battery post will be described. The electrode fitting portions 16A and 16B of the terminal body 12 are put on the battery post 2 from above. At this time, since the free end is in the released state, the battery post 2 can be smoothly fitted onto the battery post 2.

After that, the operating portion 20 of the lever 13 is tilted to the front side as shown by the arrow in FIG. 2, and the lever 13 is rotated by 90 °, and the state shown in FIG. 3 is obtained. By this lever operation, the bottom wall portion 19 is located at the rear end surface of the bent portions 17C, 17C 'at the rear ends of the tightening plate portions 17A and 17A', 17B and 17B '. Since the width of the bottom wall portion 19 is A ', the outer expanding portion B of the fastening plate portions 17A and 17A', 17B and 17B 'is narrowed to the width A', and the left and right fastening plates are The parts 17A and 17A 'and 17B and 17B' are tightened in the lateral direction in which they are close to each other.

As described above, when the lever 13 is closed, the tightening plate portions are tightened in the direction to close each other, so that the open free ends of the continuous electrode fitting portions 16A and 16B are closed, and the electrode fitting portion is closed. The cylindrical portions 16A-1 and 16B-1 of 16A and 16B are fixed to the outer peripheral surface of the battery post 2 by pressure. In the fixed state, the rear end of the tightening plate portion is tightened by the bottom wall portion 19 of the lever 13 and the bending roots of the bolt mounting portions 20A and 20B, so that a strong tightening force can be obtained and secure fixing can be achieved.

FIG. 4 shows a second embodiment, in which the wire connection side is of the crimp type, and the wire connection section 15A 'continuous with the upper electrode fitting section 16A is of the barrel type. Since the other construction and the manner of assembling to the battery post are the same as those of the first embodiment, the same reference numerals are given and the description thereof will be omitted.

5 to 10 show a third embodiment. In the third embodiment, the lever 30 is attached to the terminal body 12 continuously in the horizontal direction, and is rotated by 180 ° from that state to tighten the tightening plate portion of the terminal body 12 and the electrode fitting portion. Is fixed to the battery post by pressure.

Since the structure of the terminal body 12 of the third embodiment is the same as that of the first embodiment, the same reference numerals are given and the description thereof is omitted. The lever 30 includes a bottom wall portion 31 and side wall portions 32A and 32B protruding from both left and right sides of the bottom wall portion 31. The left and right sides of the bottom wall portion 31 are inclined to increase the width W 1 toward the rear end.

The inclination angles of the left and right sides of the bottom wall portion 31 are the same as the inclination angles of the tightening plate portions 17 A, 17 A ′, 17 B, 17 B ′ of the terminal body 12 toward the rear end. That is, as shown in FIG. 6, the inner dimensions of the front ends of the left and right side wall portions 32A and 32B are set to A ′, and the outer dimensions A of the fastening plate portions 17A and 17A ′ 17B and 17B ′ are set to be substantially the same. , Tightening plate portions 17A to 17B 'The side wall portions 32A and 32B which are outer fitting portions on the rear side at a distance equal to the length of the fastening plate portions 17A and 17A', 17B and 17B ' It is set to B ', which is almost the same as the outer dimension B on the side.

The side wall portions 32A, 32B of the lever 30 are formed by protruding the sandwiching rib portions 33A, 33B from the front end portion, that is, the portion of the inner dimension A'to B '. Bolt holes 33A-1 and 33B-1 are formed in these rib portions 33A and 33B.

As shown in FIG. 7, the side wall portions 32A and 32B including the sandwiching rib portions 33A and 33B are inclined so as to be slightly outwardly widened upward.

The lever 30 is connected to the terminal body 12 by connecting the bolt holes 33A-1, 33B-1 to the bolt holes 18A, 18A 'of the tightening plate portions 17A, 17A' of the terminal body 12 and connecting them to the bolt 25. It is attached by a nut, and the lever 30 is rotatably attached to the terminal body 12.

A state in which the lever 30 shown in FIGS. 5 and 8A is continuous in the same horizontal direction as the terminal body 11 is a state before being assembled to the battery post 2. At this time, the sandwiching rib portions 33A and 33B are located on the outer surfaces of the tightening plate portions 17A and 17B, 17A 'and 17B', respectively, and the inclination angles of the outward spread are matched, that is, A Since A'is present at the position of B and B'is present at the position of B, the fastening plate portions 17A to 17B 'are not tightened, and the free ends of the electrode fitting portions 16A and 16B are in the open state.

With the lever 30 having an opening angle of 180 ° with the terminal body 12, the electrode fitting portions 16A and 16B are fitted onto the battery post 2 from above as shown in FIG. 8A. From this state, the lever 30 is rotated forward. When rotated 90 ° in FIG. 8 (B), the front end of the narrowest inner dimension A ′ of the lever 30 is located at the outer dimension B of the rear end position of the tightening plate portions 17A to 17B ′, and Since the width of the sandwich rib portions 33A and 33B that is continuous with the bottom wall portion is narrow, the tightening force on the tightening plate portion reaches a peak.

Further, the lever 30 is rotated forward until the bottom wall portion 31 of the lever 30 comes into contact with the upper surface of the battery post 2 as shown in FIGS. 8 (C), 9 and 10. Rotate 180 ° from position (A) and close lever 30. At this position, the front end of the inner dimension A'of the lever 30 is displaced to the rear end position and comes to the position of the outer dimension B of the rear end of the fastening plate portions 17A to 17B ', so that the fastening plate portions are mutually moved. Tighten in the direction of close proximity. Therefore, the open free ends of the electrode fitting portions 16A and 16B which are continuous with the tightening plate portion are tightened, and the electrode fitting portions 16A and 16B are pressed and fixed to the outer peripheral surface of the battery post 2.

In order to return the lever 30 to the open position by rotating 180 degrees from the closed state, it is necessary to go through the 90 ° open position shown in FIG. 8B, and at this position, As described above, since the tightening force is strongest and the return is suppressed, the lever 30 is prevented from returning.

FIG. 11 shows a fourth embodiment. In the fourth embodiment, the battery terminal of the third embodiment is an electric wire crimp type, and a barrel 15A ′ is provided in the electric wire connecting portion. Since other configurations are the same as those of the third embodiment, the same reference numerals are given and the description thereof is omitted.

The terminal bodies of the above-described first to fourth embodiments are provided with upper and lower both side portions having substantially the same shape and are folded back at the rear end to face each other. Instead, the shape may be one. However, it is preferable to have a two-ply structure because it has higher strength.

[0040]

[Effect of the device]

 As is clear from the above description, the battery terminal according to the present invention has an extremely simple structure in which the lever is rotatably attached to the integrally formed terminal body. You can press and fix the battery terminal to the battery post with one touch. In this way, manual installation is possible without the need for a tightening tool such as an impact wrench, which was required in the past, and workability is greatly improved. There is no problem of interference with other parts.

In addition, in the battery terminal of the present invention, the pair of left and right tightening plate portions of the terminal body are inclined outward toward the rear end to widen the space between them and to correspond to the inclination angle. The lever is formed with an inclination angle, and when the lever is rotated, this inclination angle is used to locate the narrow width part of the lever in the wide part at the rear end of the tightening plate and tighten it. Since it has an extremely simple structure in which the plates are moved in the direction of approaching each other, it is possible to reduce the number of parts and the assembling man-hours, and moreover, to perform reliable tightening.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a battery terminal according to a first embodiment of the present invention.

FIG. 2 is a perspective view of the battery terminal of the first embodiment.

FIG. 3 is a perspective view showing a state where the battery terminal of the first embodiment is fixed to a battery post.

FIG. 4 is a perspective view of a battery terminal according to a second embodiment.

FIG. 5 is a perspective view of a battery terminal according to a third embodiment.

FIG. 6 is a plan view showing the dimensional relationship of the battery terminal of the third embodiment.

FIG. 7 is a side view of a lever according to a third embodiment.

8A, 8B, and 8C are schematic front views showing the operation sequence of the third embodiment.

FIG. 9 is a perspective view showing a state where a battery terminal of a third embodiment is fixed to a battery post.

FIG. 10 is a side view of FIG.

FIG. 11 is a perspective view of a battery terminal according to a fourth embodiment.

FIG. 12 is a perspective view showing a state in which a conventional battery terminal is fixed to a battery post.

13A and 13B are cross-sectional views showing another conventional battery terminal.

[Explanation of symbols]

 2 Battery post 11 Battery terminal 12 Terminal body 13,30 Lever 15A, 15B Wire connection board part 16A, 16B Electrode fitting part 17A, 17A ', 17B, 17B' Tightening plate part 19,31 Bottom wall part 20 Operation part 21A, 21B, 33A, 33B Clamping rib part 22A, 22B Outer fitting part 32A, 32B Side wall part A Front end outer size of tightening plate part B Rear end outer size of tightening plate part A'Front end of both side wall parts of lever Inner dimension B'Inner dimension on the outside of the inclined part on both sides of the lever

Claims (3)

[Scope of utility model registration request] 1. A battery at the rear end of the electric wire connecting substrate portion.
A ring-shaped electrode fitting portion to be fitted onto the post is continuously provided, and a pair of left and right tightening plate portions are continuously provided at the open free ends of the rear ends of the electrode fitting portions. The terminal main body is inclined so that a space is widened toward the rear end, and the left and right tightening plate portions of the terminal main body are provided with levers whose front ends are rotatably pivoted. Provide both side wall parts located on the outer surface side of the attached plate part, and provide an inclination corresponding to the inclination angle of the tightening plate part on these both side wall parts, and when the lever is rotated, the inclination direction of the lever is reversed back and forth. hand,
A battery terminal that has a narrow width on both side walls that tightens the wide rear end of the left and right tightening plates. 2. The left and right side wall portions of the lever are each provided with a substantially square-shaped sandwiching rib portion having a bolt hole in a front side portion thereof, and are spaced continuously from the rear end surface of the sandwiching rib portion toward the rear side. So as to spread, the outer fitting portion is inclined toward the outer surface side, and the inclination of the outer fitting portion is made to correspond to the outward inclination of the left and right tightening plate portions so that the rib portion to be sandwiched when the lever rotates. The left and right tightening plate portions are configured to be displaced toward the rear end side and tightened.
Battery terminal as described. 3. The left and right side wall portions of the lever are continuously inclined outwardly toward the rear end so as to face the outward inclination angles of the left and right tightening plate portions. Battery terminal.