JP2582332Y2 - Battery terminal - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery terminal which is attached to an electrode (battery post) of a battery mounted on an automobile or the like. Convert to battery
The terminal is pressed and fixed to the battery post.

[0002]

2. Description of the Related Art Conventionally, in this type of battery terminal, an annular electrode fitting portion is externally fitted to a battery post projecting from a battery, and a substrate portion continuous with a free end of the electrode fitting portion is provided. Bolts and nuts are arranged and tightened and fixed from the horizontal direction by an automatic tightening tool such as an impact wrench.

[0003] In recent years, the number of installed components has become extremely large in the engine room of a vehicle, and the density has increased. When tightening in the horizontal direction, it interferes with other installed components, making the tightening operation difficult. While tightening the post of-
When the impact wrench contacts the side post, a short circuit occurs, and in the worst case, there are various problems such as a vehicle fire.

To solve the above problem, as shown in FIGS. 7 (A) and 7 (B), the substrate portion 3b and the clamping plate portion 3c are opposed to the terminal body 3 so as to have a taper that expands downward. On the other hand, a crimping plate 5 extending on both sides extending over the substrate portion 3b and the clamping plate portion 3c is provided, and bolts 4 are tightened from above, and the clamping portion 5 is tightened with the substrate portion 3b. There is provided a battery terminal in which the plate portion 3c is tightened, so that the electrode fitting portion 3a is pressed and fixed to the post 2 of the battery 1. (Japanese Utility Model Publication No. 4-9736)

[0005]

However, in the battery terminal, since the both sides of the caulking plate 5 are downwardly outwardly spread, the bolt tightening force is spread outward, and both sides of the caulking plate 5a, 5b are connected to the substrate. The inward tightening force is not sufficiently applied to the portion 3b and the tightening plate portion 3c.
There is a drawback that a cannot be reliably pressed against the post 2.

The present invention has been made in view of the above-mentioned problems, and when a battery terminal is attached to a battery post, a force applied vertically from above applied via a bolt is surely converted into a horizontal force. The purpose is to securely press-fit the battery terminal to the battery post.

[0007]

In order to solve the above-mentioned problems, according to the present invention, a pair of left and right fastenings is provided at each free end of a pair of upper and lower annular electrode fitting portions of a terminal body formed by folding a substrate in half. A plate portion is provided, and a fastener having a cutout portion formed by opposing left and right two-stage downwardly tapering surfaces is provided, and each tapered surface of the fastener is paired with the upper and lower pair of the terminal main body. And tighten the bolts through the bolt holes of the above-mentioned fasteners to the nuts located in the center between these tightening plates. In the battery terminal for moving the attachment plates in the horizontal direction close to each other and closing the free end of the electrode fitting portion, the outer ends of the upper and lower fastening plate portions of the terminal body are formed on the tapered surface of the fastener. Sliding along That you are projecting a is intended to provide a battery terminal according to claim.

On the end face and the other end face of the sliding part of the terminal body on the electrode fitting part side, a guide piece for slidably holding both side faces of the fastener is provided so as to project outward. preferable.

The distance between the upper and lower tightening plate portions of the terminal body is set to a size such that the terminal body is slidably adhered to the nut, and the nut is held so as to prevent rattling in the vertical direction. In order to prevent rattling of the nut, a rib is protruded downward from the upper clamping plate of the terminal body, and the nut is pressed against the lower clamping plate with the rib,
The nut may be held between the rib and the lower fastening plate. As described above, when a rib is protruded from the upper tightening plate, a long groove in the left-right direction is provided on the upper surface of the nut, and when the rib is slidably fitted, the rotation of the nut is prevented, which is preferable. .

[0010]

In the above-mentioned battery terminal of the present invention, the sliding portion protruding from the upper and lower fastening plates of the terminal body slides securely along the tapered surface of the fastening tool. The movement in the direction can be reliably converted into the movement in the left and right horizontal direction of the upper and lower clamping plates. Further, since the fastener is held between the guide pieces protruding from both ends of the sliding portion so as to be able to move up and down, the fastener can be assembled at a predetermined position with respect to the upper and lower tightening plate parts, The fastener can be guided vertically.

When the upper and lower tightening plate portions are brought into close contact with the nut, or when the nut is held without looseness between the rib protruding from the upper tightening plate portion and the lower tightening plate portion, the bolt is removed. It can be stably tightened and can be evenly moved in the left and right directions on the left and right fastening plate portions. Further, when the rib is slidably fitted in the long groove provided in the nut, the rotation of the nut can be reliably prevented.

With the above construction, the bolt is stably fastened to the nut, the fastener is securely moved in the vertical direction, and the right and left fastening plates of the terminal body are evenly arranged by the tapered surface of the fastener. The free ends of the annular electrode fitting portions that are continuous with the left and right fastening plate portions can be closed and pressed against the outer periphery of the battery post by moving the inner portions closer to each other.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 4 show a first embodiment of the present invention, in which a battery terminal 10 includes a terminal body 1.
1, a fastener 12, a bolt 13, a nut 14, and a ring 15.

The terminal body 11 is of a stat type, and is formed by bending a single metal plate into two as shown in the figure, and protruding a stat bolt 17 at a wire connecting portion 16 at one end to connect the wires. Connect the crimped terminal (not shown) to the nut
(Not shown) for connection.

The terminal body 11 is formed by bending an upper portion 11a and a lower portion 11b having substantially the same shape at a curved portion 11c at one end, and arranging the upper and lower portions to face each other.
6, the electrode fitting part 20 and the fastening plate part 21 are formed. More specifically, both the upper portion 11a and the lower portion 11b have substantially rectangular wire connection portions 16A and 16B at one end, and the electrode fitting portion 20 has an annular shape from the wire connection portions 16A and 16B.
A and 20B are connected in series. These electrode fitting portions 20A, 2
0B has a cylindrical portion 20A-1, 20B-1 along the inner peripheral edge.
Has been established.

The distal ends of the electrode fitting portions 20A and 20B are open as shown in the drawing, and continuous clamping plates 21A, 21A ', 21B and 21B' are provided at respective free ends.
The right ends of the right fastening plates 21A and 21B and the left ends of the left fastening plates 21A 'and 21B' are connected by bent portions 21C and 21C '.

At the outer ends of the upper clamping plates 21A, 21A ', there are upper sliding portions 21 which are inclined downward and outward.
A-1 and 21A'-1 are protrudingly provided. Further, lower sliding portions 21B-1, 21B'-1 (21) inclined upward and inward are provided on the outer ends of the lower fastening plate portions 21B, 21B '.
B′-1 is shown in FIG. 2).

The upper and lower sliding portions 21A-1 to 21B'-1
Electrode fitting portions 20A, 20B side and bent portions 21C, 21
Guide pieces 22 slidably in contact with both side faces of the fastener 12 are protruded outwardly from both end faces on the C ′ side. Therefore, the fastener 12 is vertically movably held between the guide pieces 22.

The left and right fastening plate portions 21A and 21A ', 21
B-shaped notches 21A-3, 21A'- for inserting the bolt 13 at a substantially intermediate position between the inner ends of B and 21B '.
3, 21B-3 and 21B'-3 are provided. An air gap S is provided between the left and right fastening plate portions 21A and 21A ', and 21B and 21B'.

The fastener 12 has a substantially inverted U-shape having an upper surface portion 12a and both side portions 12b and 12c.
A bolt hole 25 is formed at the center of a. Also, both side portions 12b, 1 projecting vertically from both ends of the upper surface portion 12a.
2c, as shown in the figure, a notch 2 having a lower end opening at the center.
6, 27 are provided. Tapered surfaces 26a, 26b, 26a ', 26b', 2 extending downward in the upper and lower two stages facing the horizontal direction are provided on both left and right end surfaces of these notches 26, 27.
7a, 27b, 27a 'and 27b' are formed, and a continuous portion of these tapered surfaces is formed as protruding surfaces 26c, 26c ', 27c and 27c'.

The bolt 13 connects the shaft portion 13a to the fastener 1.
The second bolt hole 25 penetrates and is screwed to the nut 14. Further, a ring mounting groove 13b is provided above the shaft portion 13a of the bolt 13, and after passing through the bolt hole 25,
The ring 15 is assembled to the ring mounting groove 13b, and when the bolt 13 is loosened and raised, the fastener 12 is raised in conjunction therewith.

The nut 14 includes an upper tightening plate 21A,
The nut 14 has a thickness slightly larger than the gap between the lower fastening plate portions 21A 'and 21B' and the lower fastening plate portions 21B and 21B '. With the upper fastening plate portions 21A and 21A '
The lower clamping plate 21B, 21B 'is slidably adhered to the lower surface of the nut 14 while being slidably adhered to the upper surface of the nut 4. The screw hole 14a provided at the center of the nut 14 is located in the cutouts 21A-3 to 21B'-3.

Next, a process of attaching the battery terminal 10 having the above-described structure to the battery post 2 will be described.
The battery terminal 10 is connected to the battery post 2
Prior to attachment to the terminal body, the fastener 12 is assembled between the guide pieces 22 of the terminal main body 11, and the bolt 13 is passed through the fastener 12 with respect to the nut 14 interposed between the tightening plate portions 21A to 21B '. , As shown in FIG.

In the temporarily fixed state, both sides 12 of the fastener 12 are
The outer surfaces of b and 12c slidably abut the guide piece 22,
In addition, the tapered surfaces 26a to 27b 'slidably contact the corresponding sliding portions 21A-1 to 21B'-1 of the terminal body 11, and the projecting surfaces 26c to 27c' of the tapered surfaces 26 and 27 are , Upper sliding parts 21A-1, 21A'-
1 is in contact with the lower end. Further, upper and lower tightening plate portions 21A to 21B 'are slidably adhered to both upper and lower surfaces of the nut 14. Since the notches 26 and 27 are the same, a detailed description of the notch 27 will be omitted below.

With the fastening tool 12 temporarily fixed to the terminal body 11 as described above, the electrode fitting portion 20 is
It is fitted to the post 2 from above. At this time, there is a gap S between the fastening plate portions 21A and 21A 'and 21B and 21B' on the left and right sides of the terminal body 11, and these fastening plate portions 21
The free end sides of the electrode fitting portions 20A and 20B continuous with A to 21B 'are in a wide open state. Therefore, the work of fitting the battery terminal 10 in the temporarily fixed state to the battery post 2 can be easily performed.

Next, the bolts 14 are tightened downward from above vertically. By this tightening operation, the tightening tool 12 is lowered, and the sliding portions 21A-1 to 21B'-1 of the terminal body 11 are pressed inward by the tapered surfaces 26a to 26b 'of the tightening tool 12, and the sliding is performed. Moving parts 21A-1 to 21B'-1
And the fastening plate portions 21A to 21B 'which are continuous with each other move in the directions approaching each other while sliding on the upper and lower end surfaces of the nut 14.

At the time of the above operation, the fastener 12 is regulated by the guide piece 22 and is reliably moved downward. Therefore, the sliding portions 21A-1 to 21B 'are caused by the lowering of the tapered surface of the fastener 12.
-1 can be reliably moved in the left-right direction. Also, nut 14
Since the upper and lower surfaces of the nut 14 are in close contact with the fastening plate portions 21A to 21B ', it is possible to prevent the nut 14 itself from being inclined as shown in FIG. When the nut 14 is tilted, unequal pressing force acts on the left and right tightening plate portions 21A and 21A 'and 21B and 21B', and the tightening force of the left and right tightening plate portions 21A to 21B ', that is, The movement amount varies. On the other hand, since the upper and lower tightening plate portions 21A to 21B 'are brought into close contact with the nut 14 so that the nut 14 is not inclined as described above, the left and right tightening plate portions 21A to 21B' can be evenly distributed. Can be moved.

As described above, the vertical tightening force of the bolt 14 is accurately converted into a horizontal inward force via the tapered surfaces 26a to 27b 'of the fastener 12, as shown in FIG. , The left and right fastening plate portions 21A and 21A ', 21
B and 21B 'move toward each other to clamp the free ends of the continuous electrode fittings 20A, 20B in the closing direction. Therefore, the electrode fitting portions 20A and 20B are pressed against the outer peripheral surface of the battery post 2, and the battery terminal 10 is connected and fixed to the battery post 2.

FIG. 5 shows a second embodiment of the present invention. In the first embodiment, the thickness of the nut 14 is slightly larger than the gap between the upper and lower tightening plate portions 21A to 21B 'of the terminal body 11, whereas the upper and lower tightening plate portions 21A to 21B' are provided.
B ′ is in close contact with the upper and lower surfaces of the nut 14, but the second
In the embodiment, the upper clamping plate portion 21 of the terminal body 11 'is used.
A rib 28 protruding downward is provided on the lower surface of A, 21A '. The nut 14 'is pushed down by the rib 28, and the rib 2
The nut 14 'is held between the lower part 8 and the lower tightening plate parts 21B, 21B' without play. The configuration and operation other than those described above are the same as those of the first embodiment, and a description thereof will be omitted.

FIG. 6 shows a third embodiment of the present invention, in which a long groove 30 in which the rib 28 is slidably fitted is provided on the upper surface of the nut 14 ". Thus, the long groove 3 of the nut 14" is provided.
When the rib 28 is fitted to the nut 0, the nut 14 "is prevented from rotating.

[0031]

As is clear from the above description, in the battery terminal of the present invention, since the sliding portions are formed on the right and left fastening plates of the terminal body, the battery terminal is tightened while contacting the sliding portions. The tapered surface of the attachment is moved, and the sliding portion can be reliably moved in the horizontal direction by the tapered surface.

In addition, the fastener can be reliably guided in the vertical direction by the guide piece, and the nut is stably held between the upper and lower tightening plates of the terminal body without looseness to stably tighten the bolt. Since it can be performed, the sliding part of the tightening plate is evenly pressed inward by the vertical movement of the tightening tool, so the electrode fitting part can be securely fixed to the battery post with a stable tightening force. Can be pressed against.

[Brief description of the drawings]

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

FIG. 2 is a front view showing a temporarily fixed state of a battery terminal.

FIG. 3 is a front view showing a problem of another battery terminal.

FIG. 4 is a front view showing a fixed state of the first embodiment.

FIG. 5 is a front view showing a battery terminal according to a second embodiment of the present invention.

FIG. 6 is a front view showing a battery terminal according to a third embodiment of the present invention.

FIG. 7 shows a conventional battery terminal, and (A)
Is a perspective view showing an assembled state to a battery post, (B)
Is a front view.

[Explanation of symbols]

2 Battery Post 11 Terminal Body 12 Fastener 13 Bolt 14 Nut 20 Electrode Fitting 21 Tightening Plate 21A-1, 21A'-1, 21B-1, 21B'-1 Sliding Part 22 Guide Piece 26, 27 Notch 26a, 26a ', 26b, 26b', 27a, 27a ', 27
b, 27b 'tapered surface 28 rib 30 long groove

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H01M 2/20-2/34 H01R 4/38 H01R 11/12

Claims (5)

(57) [Scope of request for utility model registration] 1. A pair of left and right clamping plates are provided at each free end of a pair of upper and lower annular electrode fitting portions of a terminal main body formed by folding a substrate in half, and a tapered surface having a two-stage lower and upper spread. Is provided with a notch formed by facing left and right, and each tapered surface of the tightening tool is brought into contact with the outer end surfaces of the pair of right and left tightening plate portions in the upper and lower pair of the terminal body. By tightening a bolt through a bolt hole of the tightening tool with respect to a nut arranged at a central portion between the tightening plate portions, and moving the left and right tightening plate portions in a horizontal direction close to each other by the tapered surface, A battery terminal for closing a free end of a fitting portion, wherein a sliding portion that is inclined along a tapered surface of the fastener is protruded from outer ends of upper and lower fastening plates of the terminal body. Battery term Le. 2. A guide piece which slidably sandwiches both side surfaces of a fastener is provided outwardly on the end surface and the other end surface of the sliding portion of the terminal body on the electrode fitting portion side. The battery terminal according to claim 1, wherein 3. The terminal according to claim 1, wherein an interval between the upper and lower tightening plates of the terminal body is set to a size such that the terminal body is slidably adhered to the nut.
Battery terminal according to the paragraph. 4. A terminal according to claim 1, wherein a rib is projected downward from an upper clamping plate of said terminal body, and a nut is held between said rib and said lower clamping plate without play. Item 3. The battery terminal according to any one of Items 1 or 2. 5. The battery terminal according to claim 4, wherein a long groove in the left-right direction is provided on an upper surface of the nut, and the rib is slidably fitted to prevent the nut from turning.