JPH0648165U - Battery terminal - Google Patents

Abstract

(57) [Abstract] [Purpose] When tightening with bolts and nuts, securely move the tightening plate part in the horizontal direction via the tapered surface of the tightening tool. Prevents deformation due to lowering. [Structure] A pair of left and right tightening plate portions are provided at each free end of a pair of upper and lower annular electrode fitting portions of the terminal body, and a notch portion formed by vertically opposing two downwardly extending tapered surfaces is provided. A battery for closing the free end of the electrode fitting portion by providing a fastening tool having the fastening tool, tightening a bolt through the fastening tool and tightening the nut, and moving the left and right fastening plate parts in the horizontal direction close to each other by their tapered surfaces. -In the terminal, a pair of upper and lower tightening plate portions on the left and right sides of the terminal body are engaged with each other.

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 more particularly, it converts the tightening force from the vertical upper direction to the horizontal direction to convert the battery terminal into a battery. -It is one that securely press-fixes to the post.

[0002]

[Prior art]

 Conventionally, in this type of battery terminal, a ring-shaped electrode fitting portion is externally fitted to a battery post protruding from the battery, and a continuous board portion is connected to the free end of the electrode fitting portion by bolts and nuts. From the horizontal direction, bolts are tightened and secured from the horizontal direction with a tightening tool such as an impact wrench.

In recent years, the number of installed parts in the engine room of a vehicle has become extremely large and the density has increased, and when tightening from the horizontal direction, interference with other installed parts makes it difficult to perform tightening work. If the impact wrench comes into contact with the post on one side while the post is tightened, a short circuit will occur, and in the worst case, a vehicle fire will occur and various other problems will occur.

To solve the above problem, as shown in FIGS. 6 (A) and 6 (B), the base plate portion 3b and the tightening plate portion 3c of the terminal body 3 are opposed to each other so as to have a taper that expands downward. On the other hand, a caulking plate 5 is formed on both sides of the base plate portion 3b and the clamping plate portion 3c. The caulking plate 5 spreads downward. There is provided a battery terminal in which the attached plate portion 3c is tightened and thus the electrode fitting portion 3a is pressed and fixed to the post 2 of the battery 1. (Jpn. Publication No. 4-9736)

In the above-mentioned conventional example, since the battery terminal has the outward widening facing downward on both sides of the caulking plate, the tightening force of the bolt spreads to the outside, and both sides of the caulking plate 5a and 5b are the base plate portions. There is a drawback that the inward tightening force is not sufficiently applied to 3b and the tightening plate part 3c, and as a result, the electrode fitting part 3a cannot be securely pressed against the post 2.

In order to solve the above problem, the applicant has previously proposed a battery terminal shown in FIG. (Japanese Patent Application No. 4-39304) In the battery terminal, the upper and lower substrates having substantially the same shape are arranged so that one ends of the upper and lower substrates are curved so as to face each other, and the wire connecting portion 3e ', the electrode fitting portion 3a', and the tightening portion It has a terminal body 3'formed with a portion 3b '. A pair of left and right tightening plate portions 3c'-1, 3c'-2 and 3c'-3, 3c'-4 are respectively continuous to the pair of upper and lower free ends of the annular electrode fitting portion 3a 'and 3c. '-1 and 3c'-3 are connected by a curved portion 3c'-5 at the tip, and 3c'-2 and 3c'-4 are connected by 3c'-6. On the other hand, as a tightening tool 5'which serves as a caulking plate, tapered surfaces 5a 'and 5b', 5c 'and 5d' that spread downward in two steps vertically are laterally opposite to each other on both sides of the inverted U-shaped cross section. The cutout portion 5e 'thus formed is provided.

A central portion of a tightening portion 3b ′ including a pair of upper and lower tightening plate portions of the terminal body 3 ′, that is, between the upper and lower tightening plate portions and between the left and right tightening plate portions. While arranging the nut 6, the fastening plates 5a ′ and 5b ′ of the fastening tool 5 ′ have outer end faces of the fastening plates 3c′-1 and 3c′-3, and the tapered faces 5e ′ and 5d ′ have fastening plates. It is brought into contact with the outer end surfaces of 3c'-2 and 3c'-4.

In the above state, the bolt 4 is screwed into the nut 6 through the bolt hole 5f ′ on the upper surface of the tightening tool 5 ′, thereby lowering the tightening tool 5 ′ and tightening along the tapered surface. The plate portions 3c'-1 to 3c'-4 are pressed in the horizontal directions close to each other indicated by the arrow X1. Therefore, the free ends of the electrode fitting parts connected to these tightening plate parts are moved in the closing direction to fix the terminal body 3'to the battery post 2 under pressure.

[0009]

[Problems to be Solved by the Invention] Usually, as shown in FIG. 7, the battery post 2 is fixed to the upper surface of the battery 1 via a flange portion 2a. Therefore, when the terminal main body 3'of the battery terminal is attached to the post 2, the lower electrode fitting portion abuts on the upper surface of the flange portion 2a, and the lower electrode fitting portion is on the same plane as the lower electrode fitting portion. There is a gap S between the side tightening plate portions 3c′-3, 3c′-4 and the upper surface of the battery 1.

As described above, if the lower surfaces of the lower tightening plate portions 3c′-3 and 3c′-4 are not supported and there is a gap S, the strength against the force from above is insufficient when the bolt 4 is tightened. Becomes Therefore, when the fastening tool 5'is lowered by the bolt 4, the fastening plate portions 3c'-3, 3c'-4 are not moved in the horizontal direction by the tapered surfaces 5b ', 5d' of the fastening tool 5 '. , It is easy to interlock and descend in the direction indicated by arrow X2. Since the lower surfaces of the upper tightening plate portions 3c'-1 and 3c'-2 are located on the upper surface of the nut 6, the upper tightening plate portions 3c'-1 and 3c'-2 do not descend and the upper tapered surfaces 7a 'and 7c' are closer to each other in the horizontal direction. Moved to.

As described above, unless the lower tightening plate portions are moved in the horizontal direction in which the lower tightening plate portions are close to each other, the lower free end of the continuous electrode fitting portion is not tightened, and the post 2 of the terminal body 3 ′ is not tightened. There is a problem that the pressure contact with is insufficient.

The present invention is intended to solve the above problems by preventing the lower tightening plate portion of the terminal body from being moved or deformed downward, and fixing the bolts and nuts in the same manner as the upper tightening plate portion. The purpose is to ensure that the taper surfaces of the fasteners move in the horizontal direction close to each other when tightening.

[0013]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a terminal body including a fastening part having upper and lower side parts of substantially the same shape by folding a board in two, an electrode fitting part and a wire connecting part, and the terminal body. In the main body, a pair of left and right tightening plate parts of the tightening part are provided at the free ends of the pair of upper and lower annular parts of the electrode fitting part, respectively, and a tip of the upper and lower tightening plate parts is provided with a curved part. It is formed in a continuous shape and has an inverted U-shape, has a bolt hole in the center top surface, and has notches formed on both sides by facing two vertically downward tapered taper surfaces to the left and right. Install a fastener, and assemble the fastener by abutting the tapered surface on the outer end surface of each tightening plate of the terminal body, and in the center of a pair of upper and lower tightening plates on the left and right sides of the terminal body. Through the bolt hole of the above fastener for the nut to be placed In the battery terminal that closes the free end of the electrode fitting part by moving the left and right tightening plate parts in the horizontal direction close to each other by the taper surface, in the left and right side of the tightening part of the terminal body. The upper and lower clamping plate portions, which are vertically opposed to each other, are configured to be locked to each other, and the lower clamping plate portion is prevented from descending by locking with the upper clamping plate portion supported by the upper surface of the nut. It provides a battery terminal.

The upper tightening plate part and the lower tightening plate part are engaged with each other by providing a sliding part that is inclined downward from the outer ends of the left and right upper tightening plate parts, while Provide a sliding part that inclines upward from the outer end of the tightening plate, make the sliding part of the lower tightening plate contact the inner surface of the upper tightening plate, and engage the contact surfaces with each other. An uneven part is provided to stop the upper and lower clamping plate parts. Alternatively, an L-shaped engaging portion that engages with each other is provided at the tip of the vertical sliding portion.

Further, in order to lock the upper and lower tightening plate portions, a two-step upper and lower taper having a shape along the two upper and lower tapered surfaces of the fastener is provided from the outer ends of the left and right upper tightening plate portions. The sliding part is formed so as to extend downward, and the lower end of the sliding part is bent inward to engage with the lower surface side of the flat plate-shaped lower left and right clamping plate parts.

[0016]

[Action]

 In the battery terminal of the present invention, the upper and lower clamping plate portions of the terminal main body are locked to each other, and the upper clamping plate portion is supported by the nut. Even when the tightening tool having the downwardly wide tapered surface is lowered, the lower tightening plate portion can be prevented from being lowered and deformed.

[0017]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 3 show a first embodiment of the present invention, in which a battery terminal 10 comprises a terminal body 11, a fastening tool 12, a bolt 13, a nut 14 and a ring 15.

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

In the terminal body 11, the upper portion 11a and the lower portion 11b, which are roughly the same in shape, are bent at a curved portion 11c on one end side, and are vertically opposed to each other so that the wire connecting portion 16 and the electrode fitting portion are fitted. The portion 20 and the tightening plate portion 21 are formed. Specifically, both the upper side portion 11a and the lower side portion 11b are provided with substantially rectangular wire connecting portions 16A, 16B at one end, and the electrode fitting portions 20A, 20B having a ring shape are connected to the wire connecting portions 16A, 16B. I have set up. Cylindrical portions 20A-1 and 20B-1 are provided upright along the inner peripheral edges of these electrode fitting portions 20A and 20B.

The tip ends of the electrode fitting portions 20A, 20B are in an open state as shown in the figure, and continuous tightening plate portions 21A, 21A ', 21B, 21B' are provided at the respective free ends, and the right tightening portion is provided. The tip ends of the attached plate portions 21A and 21B and the left side tightening plate portions 21A 'and 21B' are connected by bent portions 21C and 21C '.

On the outer ends of the upper tightening plate portions 21A and 21A ', upper sliding portions 21A-1 and 21A'-1 which are inclined downward and outward are provided in a protruding manner. Further, at the outer ends of the lower tightening plate portions 21B and 21B ', the lower sliding portions 21B-1 and 21B'-1 (21B'-1 shown in FIG. (Shown in Fig.).

As shown in FIG. 2, the lower sliding portions 21B-1 and 21B'-1 are bent at their upper ends outward so that the inner surfaces of the upper sliding portions 21A-1 and 21A'-1 are bent. Is provided with a locking surface 23, and the locking surface 23 is provided with a convex portion 23a. Further, a recess 24 is provided on the inner surface of each of the upper sliding portions 21A-1, 21A'-1 so as to correspond to the protrusion 23a of the locking surface 23, and these protrusions 23a and the recess 24 are engaged with each other. I am doing it.

Further, both end surfaces of the vertical sliding portions 21A-1 to 21B'-1 on the electrode fitting portions 20A, 20B side and the bent portions 21C, 21C 'side slide on both side surfaces of the fastener 12. A guide piece 22 that freely contacts is provided so as to project outward.

Further, these tightening plate portions 21A to 21B 'have locking pieces 21A-2, 21A'-2, 21B-2, 21B'- for positioning the nut 14 at predetermined positions on the inner ends. 2 is projected inward. In addition, the curved notches 21A-3, 21A'-3, 21B-for inserting the bolt 13 into the inner ends of the left and right tightening plate portions 21A and 21A ', 21B and 21B', respectively. 3,21B'-3 are provided. Moreover, a gap S1 (shown in FIG. 1) is provided between the left and right tightening 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, and a bolt hole 25 is formed at the center of the upper surface portion 12a. Further, as shown in the drawing, on both side portions 12b, 12c projecting from both ends of the upper surface portion 12a in the vertical direction, cutout portions 26, 27 having lower end openings are provided in the central portion, and these cutout portions 26, 27 are cut off. Tapered surfaces 26a, 26b, 26a ', 26b', 27a, 27b, 27a ', and 27b' are formed on the left and right side end surfaces, which are horizontally opposed and extend downward in two steps. The continuous portion of is a protruding surface 26c, 26c ', 27c, 27c'.

The bolt 13 penetrates the shaft portion 13 a into the bolt hole 25 of the fastener 12 and is screwed to the nut 14. Also, a ring mounting groove 13b is provided above the shaft portion 13a of the bolt 13, and after passing through the bolt hole 25, a ring 15 is assembled in the ring mounting groove 13b as shown in FIG. When it is opened, the tightening tool 12 is interlocked and raised.

The nut 14 is arranged between the upper tightening plate parts 21A and 21A ′ and the lower tightening plate parts 21B and 21B ′, and is engaged with the tightening plate parts 21A to 21B ′ so as to project therefrom. The pieces 21A-2 to 21B'-2 are positioned. Moreover, the screw hole 14a is interposed so as to be located in the notches 21A-3 to 21B'-3 of the tightening plate portions 21A to 21B '.

Next, a process of assembling the battery terminal 10 having the above-described configuration to the battery post 2 will be described. In the battery terminal 10, the outer surfaces of the tapered surfaces 26a to 27b 'of the fastener 12 are brought into contact with the vertical sliding portions 21A-1 to 21B'-1 while aligning with the guide pieces 22 of the terminal body 11. Then, the shaft portion 13a of the bolt 13 is passed through the bolt hole 25 of the tightening tool 12 and screwed to the nut 14 arranged inside the tightening plate portions 21A to 21B 'to be temporarily fixed.

In the temporarily fixed state, the both side portions 12b and 12c of the fastener 12 are attached to the upper and lower sliding portions 21A-1 to 21B'-1 of the outer end portions of the fastening plate portions 21A to 21B 'of the terminal body 11. Abutting slidably. The projecting surfaces 26c, 26c 'project toward the gaps between the upper and lower sliding portions 21A-1 and 21B-1, 21A'-1 and 21B'-1, that is, both sides of the nut 14.

In the temporarily fixed state, the bolt 13 is connected to the nut 14, and the nut 14 supports the upper tightening plate portions 21A and 21A ′. Since the cutout portion 27 side is similar, only the cutout portion 26 side shown in FIG. 3 will be described below.

In the temporarily fixed state, there is a gap S1 between the fastening plate portions 21A and 21A ′ and 21B and 21B ′ on both sides, and the electrode fitting portion continuous with these fastening plate portions 21A to 21B ′. The free ends of 20A and 20B are in a wide open state.

In this state, the pair of upper and lower electrode fitting portions 20A and 20B are fitted onto the post 2 of the battery 1 from above. The external fitting work can be easily performed because the free ends of the electrode fitting portions 20A and 20B are wide.

Next, the bolt 13 is tightened downward from above vertically using a tightening tool such as an impact wrench. By this tightening operation, the tightening tool 12 moves downward, and the tapered surfaces 26a to 26b 'of the notch 26 inside the vertical sliding parts 21A-1 to 21B'-1 of the left and right tightening plate parts 21A to 21B'. Press in the direction.

The lower sliding portions 21B-1 and 21B'-1 of the terminal body 11 and the upper sliding portions 21A-1 and 21A'-1 are connected to each other through a convex portion 23a and a concave portion 24. In addition, as the upper tightening plate portions 21A and 21A ′ are lowered, the upper tightening plate portions 21A and 21A ′ supported by the nut 14 move relatively upward. Therefore, even if the lower tightening plate portions 21B, 21B 'are pressed from above by the lower taper surfaces 26b, 26b' of the tightening tool 12 during the bolt tightening work, they will not be deformed downward.

In this way, the vertical tightening force of the bolt 13 is converted to the horizontal direction by the tapered surfaces 26a to 26b ′, and the upper tightening plate portions 21A and 21A ′ on the left and right sides, and the lower tightening plate. The parts 21B and 21B 'move in a direction in which they approach each other, and clamp the free ends of the electrode fitting parts 20A, 20B in communication in the closing direction. Therefore, the electrode fitting portions 20A and 20B are pressed against the outer peripheral surface of the post 2 so that the battery terminal 10 is pressed and fixed to the battery post 2.

FIG. 4 shows a second embodiment of the present invention. In the battery terminal 10 ′ of the second embodiment, the upper tightening plate parts 21 A and 21 A ′ are lower than the outer end of the tightening plate part 21 B. , 21B 'are formed to have sliding portions extending to the lower surface. These sliding parts are shaped to correspond to the shapes of the notches 26 and 27 of the fastener 12, and are an upper sliding part 21A-1 'and a lower sliding part 21B-1', as well as 21A'-1 'and 21B'. -1 'is connected by the connecting portion 30.

That is, the upper sliding portions 21A-1 ′ and 21A′-1 ′ are provided by bending both side ends of the upper tightening plate portions 21A and 21A ′ downward and outward, and the taper of the tightening tool 12 is provided. The surfaces 26a, 26a '27a, 27a' are made to correspond.

Further, the upper sliding portions 21A-1 ', 21A'-1' are bent inward in the horizontal direction at a substantially intermediate position between the upper and lower tightening plate portions 21A, 21A 'and 21B, 21B'. 30 is provided so as to correspond to the protrusions 26c, 26c ', 27c, 27c' of the fastener 12.

Further, the lower sliding portion 21B-1 is bent downward downward from the tip of the step portion 30 and the inner surface abuts on the outer end surfaces of the lower tightening plate portions 21B and 21B '. ', 21B'-1' is provided so as to correspond to the tapered surfaces 26b, 26b ', 27b, 27b' of the fastener 12.

Further, the lower sliding portions 21B-1 ', 21B'-1' are bent at their lower ends in the horizontal direction to provide the locking portions 31, and the lower tightening plate portions 21B, 21B 'are It is locked on the bottom surface. Since the configuration and operation other than the above are the same as those of the first embodiment, the same reference numerals are given and detailed description thereof is omitted.

In the battery terminal 10 'of the second embodiment, the sliding portion 21A-1 extended from the outer end of the upper fastening plate portions 21A, 21A' to the lower fastening plate portions 21B, 21B '. Since "~ 21B'-1" is provided and the locking portion 31 at the lower end thereof is positioned and held on the lower surface of the lower tightening plate portions 21B, 21B ', the lower tightening plate portion is held. 21B and 21B 'do not lower the lower tightening plate portions 21B and 21B' as in the first embodiment.

FIG. 5 shows a third embodiment of the present invention. In the battery terminal 10 ″ of the third embodiment, like the first embodiment, the outer end of the upper tightening plate portions 21 A, 21 A ′ is formed. Is bent downward and provided with upper sliding portions 21A-1 "and 21A'-1", and the lower tightening plate portions 21B and 21B 'are directed upward inward to the lower sliding portions. 21B-1 "and 21B'-1" are formed to correspond to the tapered surfaces 26a to 27b 'of the fastener 12.

Further, the lower slide portions 21A-1 ", 21A'-1" are bent at their lower ends inwardly to provide locking pieces 50, and the lower slide portions 21B-1 ", 21B are provided. The upper end of the "-1" is bent outwardly to provide a locking piece 51, and these locking pieces 50, 51 projecting in an L shape are brought into contact with each other to be engaged with each other.

In the third embodiment, by engaging the locking pieces 50 and 51, the fastening tool 12 is lowered by tightening the bolts 13 as in the first and second embodiments. However, the lower tightening plate portions 21B and 21B 'do not move down, and the tightening force in the horizontal direction is surely converted to fix the battery post 2 under pressure.

The battery terminal according to the present embodiment is not limited to the above-described configuration, and may have a configuration in which the upper and lower clamping plate portions are locked to each other and the lower clamping plate portion is supported by the upper clamping plate portion. Good.

[0046]

[Effect of device]

 As is clear from the above description, in the battery terminal of the present invention, since the upper and lower tightening plate portions of the fastener are locked, the upper tightening plate portion that is supported by the nuts lowers the lower side. The tightening plate portion is supported. Therefore, even if the fastening tool is lowered by tightening the bolt, the lower fastening plate portion will not be lowered and deformed. Along with this, through the tapered surface of the fastener, the vertical tightening force is converted into the horizontal tightening force, and the free end of the electrode fitting part where the upper and lower tightening plate parts are continuous is converted. It can be moved in the closing direction to securely press and fix the battery post.

[Brief description of 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 sectional view taken along line I-I of the terminal body of the first embodiment.

3A and 3B are front views showing the operation process of the first embodiment.

FIG. 4 is a sectional view showing a battery terminal according to a second embodiment.

FIG. 5 is a sectional view showing a battery terminal according to a third embodiment.

6A is a perspective view showing a conventional battery terminal, and FIG. 6B is an operation explanatory view of FIG. 6A.

7A is a perspective view showing another conventional battery terminal, and FIG. 7B is a sectional view for explaining the operation of FIG.

[Explanation of symbols]

2 Battery post 10 Battery terminal 11 Terminal body 12 Tightening tool 13 Bolt 14 Nut 16 Wire connection part 21A, 21A 'Upper tightening plate part 21B, 21B' Lower tightening plate part 20A-1, 20A'-1 Upper sliding part 20B-1, 20B'-1 Lower sliding part 25 Bolt hole 26a, 26a ', 26b, 26b', 27a, 27a ', 27
b, 27b 'Tapered surface

Claims (1)

[Scope of utility model registration request] 1. A pair of left and right tightening plate portions are provided at free ends of a pair of upper and lower annular electrode fitting portions of a terminal body formed by folding a board in two, and a downwardly widened tapered surface of two upper and lower stages. And a fastening tool having a notch formed so as to be opposed to each other, and each tapered surface of the fastening tool is brought into contact with the outer end surface of each of the pair of left and right fastening plate parts of the terminal body to be assembled. , Tighten the bolt through the bolt hole of the above-mentioned tightening tool with respect to the nut arranged in the center between these tightening plate parts, and move the left and right tightening plate parts in the horizontal direction close to each other by the tapered surface, In a battery terminal that closes the free end of a fitting part, an upper tightening plate part supported by the upper surface of the nut as a shape that locks a pair of upper and lower tightening plate parts located on both left and right sides of the terminal body. By locking with Battery terminal that is configured to support the attached side clamping plate portion.