JP5630263B2 - Battery terminal - Google Patents

Description

  The present invention relates to a battery terminal.

  Patent Document 1 discloses a battery terminal configured by assembling a fastening tool to a terminal body. The terminal main body includes an arc-shaped connection portion fitted on the battery post, and at least two arc-shaped tightening portions extending in an arc shape from both end edges in the circumferential direction of the arc-shaped connection portion. When the diameter is increased, the arc-shaped connecting portion is deformed by a reduced diameter. The fastener is assembled so as to be inserted between the arc-shaped tightening portions, and is moved substantially parallel to the axis of the arc-shaped connection portion between the temporary holding position and the tightening position above the temporary holding position. ing. When connecting the battery terminal to the battery post, first, the fastener is assembled at the temporary holding position, and the arcuate connection portion is fitted to the battery post in this state. Thereafter, when the fastening tool is moved to the fastening position and displaced so as to expand the arc-like fastening part, the arc-like connecting part is deformed in diameter and connected to the outer periphery of the battery post.

JP-A-11-307145

  In the state where the fastener is temporarily held in the battery terminal described above, the lower end of the fastener protrudes downward from the lower end of the terminal body, and the lower end of the fastener is fitted when the terminal body is fitted to the battery post. Interferes with the upper surface of the battery, so that the terminal body is in an improper fitting state that is lifted from the upper surface of the battery. Therefore, in order to move the terminal body from this state to the normal connection position, the terminal body is pushed down to the normal connection position while pulling up the fastener to the tightening position, or the terminal body is forced down to the normal connection position. The attachment is displaced to the tightening position.

  As described above, the battery terminal described in Patent Document 1 cannot fit the terminal body into the regular connection position before the operation of displacing the fastener to the tightening position. Therefore, when connecting to the battery post, two operations, that is, the operation of displacing the fastener to the tightening position and the operation of moving the terminal body from the incorrect fitting position to the proper connection position must be performed simultaneously. There is a problem that workability is not good.

  The present invention has been completed based on the above circumstances, and an object thereof is to improve workability.

As a means for achieving the above object, the invention of claim 1 is configured by attaching a fastener to a terminal main body, and the terminal main body is an arc-shaped connection that is externally fitted to a battery post protruding from the outer surface of the battery. And a plurality of arc-shaped tightening portions extending from both ends in the circumferential direction of the arc-shaped connecting portion, and the arc-shaped tightening portion is inserted between the plurality of arc-shaped tightening portions. The arc-shaped connecting portion is deformed in a reduced diameter by displacing the arc-shaped connecting portion, and the interrupting direction of the fastener with respect to the arc-shaped fastening device is such that the arc-shaped connecting portion is The arcuate connection portion is allowed to be attached to and detached from the battery post in a state where the fitting direction is the same as the fitting direction to be fitted to the battery post, and the fastener is assembled in the temporary holding position. The interrupt forward end of the serial fastener, said are retracted rearward position than the front end of the fitting direction of the arcuate connecting portion, wherein the fastener, the surface prior Symbol interrupt aft In addition, the present invention is characterized in that an operation surface that enables the operation of pushing the fastening tool in the interruption direction is formed.

According to a second aspect of the present invention, in the first aspect of the present invention, in the state where the tightening tool is assembled at a tightening position forward of the interrupting direction with respect to the temporary holding position, the arc-shaped connecting portion is the battery post. a reduced diameter the outer periphery of the possible fastening, wherein the outer periphery of the fastener, and temporary retaining engagement portion for retaining the pre-Symbol fastener in the temporary holding position before Symbol the tightening position fastener It is characterized in that a fastening portion for tightening is formed.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the plurality of arc-shaped tightening portions are simultaneously locked on the outer periphery of the tightening tool so that the tightening tool is the arc-shaped. A plurality of locking portions are formed to be held in an assembled state with respect to the tightening portion, and the plurality of arc-shaped tightening portions are characterized by being independent from each other over the entire region in the extending direction. Have.

  According to a fourth aspect of the present invention, there is provided the method according to any one of the first to third aspects, wherein the arc-shaped connecting portion does not interrupt the fastener between the arc-shaped tightening portions, and the arc-shaped connection portion. In the state where the connection portion is fitted to the battery post, a retaining piece for retaining the arc-shaped connection portion by contacting the outer periphery of the battery post is formed.

<Invention of Claim 1>
When connecting the battery terminal to the battery post, first fit the terminal body into the battery post, and then push the operation surface while pushing the operating tool between the arc-shaped tightening parts to tighten the arc. By expanding the attachment portion, the arcuate connection portion is deformed in a reduced diameter and is brought into close contact with the outer periphery of the battery post. In the present invention, since the operation surface for pushing operation is formed on the fastener, the fitting direction of the terminal body with respect to the battery post and the interruption direction of the fastener with respect to the arcuate fastening portion are set to be substantially the same direction. This means that the fasteners can be prevented from interfering with the outer surface of the battery when fitting the terminal body to the battery post. This enables the terminal body to be fitted in the proper connection position with respect to the battery post prior to the interrupting operation to the arc-shaped fastening part by the fastening tool, so that the fastening work of the fastening tool can be performed independently. It can be performed and has excellent workability.

<Invention of Claim 2>
When connecting the battery terminal to the battery post, hold the fastener in the temporary holding position of the arc-shaped tightening portion, fit the arc-shaped connection portion to the battery post, and then place the fastener in the temporary holding position. Just push it to the tightening position. Since the fastening tool and the terminal body can be handled integrally during the connection work, workability is good.

<Invention of Claim 3>
Since the plurality of arc-shaped tightening portions are independent from each other over the entire region in the extending direction, even if any one arc-shaped tightening portion is displaced in a direction away from the locking portion, other arc-shaped tightening portions The part keeps being locked to the locking part.

<Invention of Claim 4>
When the arc-shaped connecting portion is fitted to the battery post, the retaining piece is locked to the outer periphery of the battery post and the arc-shaped connecting portion is held in the retaining state, so that it is easy to perform an operation of interrupting the subsequent fastener.

The front view showing the state which connected the battery terminal to the battery post in Embodiment 1. Front view showing the state in which the fastener is assembled in the temporary holding position and the arcuate connection portion is fitted to the battery post. Front view of the terminal body Front view of fastener Battery terminal side view Top view of the battery terminal

<Embodiment 1>
A first embodiment of the present invention will be described below with reference to FIGS. The battery terminal T is connected so as to be fitted from above to a battery post P that rises at a substantially right angle from the upper surface (outer surface) of the battery B. The battery post P has a substantially cylindrical shape, and specifically has a truncated cone shape with a diameter gradually reduced upward. The battery terminal T includes a terminal main body 10 formed by bending a metal plate material punched into a predetermined shape, and a fastening tool 20 assembled to the terminal main body 10.

  As shown in FIG. 5, the terminal body 10 is formed by integrally forming an arc-shaped connecting portion 11, a wire crimping portion 13, and three arc-shaped tightening portions 15 </ b> A, 15 </ b> B, and 15 </ b> C. The arc-shaped connecting portion 11 has a substantially cylindrical shape whose axis is directed in the vertical direction (direction parallel to the axis of the battery post P). The inner diameter of the arc-shaped connecting portion 11 gradually decreases upward so as to be aligned with the outer periphery of the truncated conical battery post P. Moreover, the one edge part and the other edge part in the circumferential direction of the arc-shaped connection part 11 are mutually spaced apart. As shown in FIG. 6, the arc-shaped connecting portion 11 is formed with retaining pieces 12 by cutting and raising three locations spaced in the circumferential direction. The retaining piece 12 has a shape that extends upward in a cantilevered manner and protrudes to the inside of the arc-shaped connecting portion 11. The wire crimping portion 13 has an open barrel shape extending rearward from the rear end portion of the lower end edge of the arc-shaped holding portion, and the end portion of the wire 14 is connected to the wire crimping portion 13 by crimping.

  As shown in FIGS. 1 to 3 and 5, the three arc-shaped tightening portions 15 </ b> A, 15 </ b> B, and 15 </ b> C are arranged in the axial direction (vertical direction) of the arc-shaped connecting portion 11. The uppermost first arcuate fastening part 15A and the lowermost third arcuate fastening part 15C are from the left end of the arcuate connection part 11 (the end on the front side in the clockwise direction in plan view). The first arcuate fastening part 15A and the third arcuate fastening part 15C have a substantially semicircular arc shape in which the right side surface is recessed. The second arcuate tightening portion 15B located at the intermediate height extends horizontally from the right end of the arcuate connection portion 11 (the end on the rearward side in the clockwise direction in plan view) to the left front, The planar shape of the two-arc-shaped tightening portion 15B is a substantially semicircular arc shape in which the left side surface is recessed.

  The first to third arc-shaped tightening portions 15A, 15B, and 15C are arranged so as to form a substantially C shape in a plan view (viewed from a direction parallel to the axis of the arc-shaped connecting portion 11). The base ends of the arc-shaped tightening portions 15A and 15C (portions connected to the right end of the arc-shaped connecting portion 11) and the base ends of the second arc-shaped tightening portion 15B (connected to the left end of the arc-shaped connecting portion 11) Part). Accordingly, when the distance between the first and third arc-shaped tightening portions 15A and 15C and the second arc-shaped tightening portion 15B is increased in the left-right direction, both end portions in the circumferential direction of the arc-shaped connection portion 11 approach each other. The portion 11 is deformed in a reduced diameter.

  The fastening tool 20 is made of a material having the same hardness as that of the terminal body 10 or higher in hardness, and as shown in FIGS. 1 to 3, the fastening tool 20 has a substantially cylindrical shape with the axis line directed vertically. The fastening tool 20 is assembled to the terminal body 10 so as to cut into the space formed so as to be sandwiched between the arc-like fastening parts 15A, 15B, 15C from above. The upper end surface of the fastening tool 20 (the end face on the rear end side of the fastening tool 20 with respect to the arc-like fastening parts 15A, 15B, 15C (hereinafter referred to simply as “interrupt direction”)) is the axis of the fastening tool 20 It consists of a plane perpendicular to the direction (interrupt direction), and is an operation surface 21 for pressing when the fastening tool 20 is interrupted.

  The outer periphery of the fastener 20 includes first to third three tapered surfaces 22A, 22B, 22C arranged in the vertical direction (axial direction), and first and second locking surfaces arranged at intervals in the vertical direction. 23A and 23B. The first taper surface 22A (the tightening locking portion or locking portion, which is a constituent requirement of the present invention) is positioned at the top, and the second taper surface 22B (the tightening locking portion, temporary fixing portion or the provisional requirement of the present invention). (Holding locking portion, locking portion) is located at the center height, and the third tapered surface 22C (the fastening locking portion, the temporary holding locking portion, the locking portion, which is a constituent element of the present invention) is the most. Located below. These tapered surfaces 22A, 22B, and 22C are all inclined with respect to the axial direction (direction substantially parallel to the interruption direction) of the fastener 20, and the outer diameters are downward (forward in the interruption direction). The curved surface is inclined so as to become gradually smaller.

  The first locking surface 23A (tightening locking portion or locking portion, which is a constituent feature of the present invention) is located at the stepped boundary between the first tapered surface 22A and the second tapered surface 22B, and the second The locking surface 23B (the fastening locking portion, the temporary holding locking portion, and the locking portion, which are constituent elements of the present invention) is formed at the stepped boundary portion between the second tapered surface 22B and the third tapered surface 22C. To position. Each of the two locking surfaces 23A and 23B is a plane that is substantially perpendicular to the axial direction of the fastener 20, and faces upward (backward in the interrupt direction).

  Next, the operation of this embodiment will be described. When connecting the battery terminal T to the battery post P, first, as shown in FIG. 2, the fastener 20 is assembled to the terminal main body 10 in a temporary holding position. The fastening tool 20 is assembled by pressing the operating surface 21 with an operator's finger and causing the fastening tool 20 to be interrupted between the upper two arc-shaped fastening parts 15A and 15B from above. In a state where the fastener 20 is assembled at the temporary holding position, the maximum inner diameter of the arc-shaped connection portion 11 is larger than the maximum outer diameter of the battery post P. That is, when the arc-shaped connecting portion 11 is externally fitted to the battery post P from above, the arc-shaped connecting portion 11 intersects the battery post P in the horizontal direction (the fitting direction of the arc-shaped connecting portion 11 with respect to the battery post P intersects). (Direction) can be rattled.

  In the state where the fastening tool 20 is assembled at the temporary holding position, as shown in FIG. 2, the inner surface of the first arcuate fastening part 15A abuts against the second tapered face 22B, and the second arcuate fastening part 15B When the inner surface comes into contact with the third tapered surface 22C, the fastening tool 20 is positioned in a state in which the backlash in the horizontal direction is restricted with respect to the arc-like fastening portions 15A and 15B (terminal body 10). Due to the inclination of the second taper surface 22B and the third taper surface 22C, the fastener 20 is restricted from being displaced downward relative to the arcuate tightening portions 15A and 15B. Further, the lower end edge (lower end surface) of the first arc-shaped tightening portion 15A abuts (locks) from above with respect to the second locking surface 23B, so that the tightening tool 20 has the arc-shaped tightening portions 15A and 15B. Is positioned in a state in which upward displacement is restricted. As a result, the fastening tool 20 is held in a state in which relative displacement is restricted with respect to the arcuate fastening portions 15A and 15B (terminal body 10) at the temporary holding position.

  After the fastening tool 20 is assembled in the temporary holding position, the arc-shaped connecting portion 11 is fitted to the battery post P from above, and the lower end of the arc-shaped connecting portion 11 is brought into contact with the upper surface of the battery B. At this time, as shown in FIG. 2, the lower end surface of the fastener 20 is retracted to a position above the lower end of the arc-shaped connecting portion 11, so that the lower end portion of the fastener 20 is in contact with the upper surface of the battery B. There is no interference. Therefore, the arc-shaped connecting portion 11 is fitted in a normal connection position (a position on the upper surface of the battery B) in the vertical direction. When the arc-shaped connecting portion 11 is fitted into the regular connection position, the upper end edges (extending end edges) of the three retaining pieces 12 are locked or bite into the outer periphery of the battery post P from below, so that the arc-shaped connecting portion 11 is Displacement in a direction away from the battery post P is restricted.

  Thereafter, by pushing the operation surface 21 with a finger, the fastening tool 20 is pushed down to a fastening position below the temporary holding position. By this pushing-down operation, the fastening tool 20 is deeply inserted between the arcuate fastening portions 15A, 15B, 15C. In the state in which the fastener 20 is interrupted to the tightening position, as shown in FIG. 1, the inner surface of the first arcuate tightening portion 15A abuts on the first taper surface 22A, and the inner surface of the second arcuate tightening portion 15B is When the second taper surface 22B abuts and the inner surface of the third arcuate tightening portion 15C abuts the third taper surface 22C, the tightening tool 20 becomes the arcuate tightening portions 15A, 15B, 15C (terminal body 10). Is positioned in a state in which backlash in the horizontal direction is restricted. Further, the inclination of the first to third tapered surfaces 22A, 22B, and 22C restricts the downward displacement of the fastening tool 20 with respect to the arc-shaped fastening portions 15A, 15B, and 15C. Further, the lower end edge (lower end surface) of the first arc-shaped tightening portion 15A abuts (locks) from above on the first locking surface 23A, and the lower end edge (lower end surface) of the second arc-shaped tightening portion 15B. ) Abuts (locks) with respect to the second locking surface 23B from above, so that the upward movement of the fastening tool 20 is restricted with respect to the arcuate fastening portions 15A, 15B, 15C. Is positioned. As a result, the fastening tool 20 is held in a state in which relative displacement is restricted with respect to the arcuate fastening portions 15A, 15B, and 15C (terminal body 10) at the fastening position.

  In a state where the fastening tool 20 is pushed into the fastening position, the space between the first and third arcuate fastening parts 15A, 15C and the second arcuate fastening part 15B is expanded to the left and right by the interruption of the fastening tool 20. Therefore, the arc-shaped connecting portion 11 is deformed so as to have a reduced diameter and is connected to the outer periphery of the battery post P so as to be conductive.

  As described above, the battery terminal T of the present embodiment is configured by attaching the fastener 20 to the terminal main body 10, and the terminal main body 10 is fitted to the battery post P with the arc-shaped connection portion 11 and the arc-shaped connection portion. 11 is provided with three arcuate fastening portions 15A, 15B, 15C extending from both ends in the circumferential direction, and the fastening tool 20 is disposed between the three arcuate fastening portions 15A, 15B, 15C. And the arcuate fastening portions 15A, 15B, and 15C are displaced so as to expand, whereby the arcuate connection portion 11 is deformed in a reduced diameter. The fastener 20 is formed with an operation surface 21 that faces the arcuate fastening portions 15A, 15B, and 15C in the interruption direction (upward) and that allows the operation of pushing the fastener 20 in the interruption direction. Yes.

  Since the operation surface 21 for pushing operation is formed on the fastener 20 as described above, the fitting direction of the terminal body 10 with respect to the battery post P and the fastener 20 with respect to the arc-shaped fasteners 15A, 15B, 15C are provided. It is realized that the interrupt direction is substantially the same direction (downward). This means that it is possible to prevent the fastener 20 from interfering with the outer surface of the battery B when the terminal main body 10 is fitted to the battery post P, and the arc-like fastening portion 15A by the fastener 20 can be avoided. , 15B, 15C, the terminal main body 10 can be fitted to the battery post P at a regular connection position prior to the interruption operation. Thereby, since the interruption operation | work of the fastener 20 can be performed independently, it is excellent in workability | operativity.

  Further, on the outer periphery of the fastening tool 20, a second taper surface 22B and a third taper are provided as temporary holding locking parts for holding the fastening tool 20 assembled to the arcuate fastening parts 15A and 15B in the temporary holding position. In the state where the surface 22C and the second locking surface 23B are formed and the fastener 20 is held at the temporary holding position, the arcuate connection portion 11 is allowed to be attached to and detached from the battery post P. Similarly, on the outer periphery of the fastening tool 20, as a fastening part for fastening the fastening tool 20 assembled to the arc-like fastening parts 15A, 15B, 15C in the interruption direction at a fastening position ahead of the temporary holding position. In the state where the first to third tapered surfaces 22A, 22B, 22C and the first and second locking surfaces 23A, 23B are formed and the fastener 20 is held at the fastening position, the arc-shaped connecting portion 11 is The outer diameter of the battery post P is reduced so as to be tightened. According to this configuration, when the battery terminal T is connected to the battery post P, the arc-shaped connecting portion 11 is connected to the battery post P while the fastener 20 is held at the temporary holding positions of the arc-shaped tightening portions 15A and 15B. After that, the fastening tool 20 can be pushed and moved from the temporary holding position to the fastening position. If it does in this way, since the fastener 20 and the terminal main body 10 can be handled integrally during a connection operation | work, workability | operativity is good.

  Further, the arcuate fasteners 20 are held in the assembled state with respect to the arcuate fastening parts 15A, 15B, and 15C by simultaneously locking the three arcuate fastening parts 15A, 15B, and 15C on the outer periphery of the fastening tool 20. The first to third tapered surfaces 22A, 22B, 22C and the first and second locking surfaces 23A, 23B are formed as a plurality of locking portions, and the three arc-shaped tightening portions 15A, 15B, 15C It is set as the mutually independent form over the whole area | region in the extending direction. If the three arcuate tightening portions 15A, 15B, and 15C are displaced independently of each other over the entire length in this way, any one of the arcuate tightening portions 15A, 15B, and 15C is the locking portion (first Even if the third taper surfaces 22A, 22B, 22C and the first and second locking surfaces 23A, 23B are displaced in the direction away from each other, the other arc-shaped tightening portions 15A, 15B, 15C are locked by the locking portions (first To the third tapered surfaces 22A, 22B, 22C, the first and second locking surfaces 23A, 23B).

  Further, in the arc-shaped connecting portion 11, the fastener 20 is not interrupted between the arc-shaped tightening portions 15 </ b> A, 15 </ b> B, 15 </ b> C, and the arc-shaped connecting portion 11 is fitted to the battery post P. A retaining piece 12 for retaining the arc-shaped connecting portion 11 by contacting the outer periphery is formed. According to this configuration, when the arc-shaped connecting portion 11 is fitted to the battery post P, the retaining piece 12 is locked to the outer periphery of the battery post P and the arc-shaped connecting portion 11 is held in the retaining state. It is easy to perform the work of interrupting the fastening tool 20.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the said embodiment, although the taper surface of the form which diameter-reduced toward the interruption direction front was formed in the outer periphery of a fastener, it is good also as a form which does not form a taper surface in a fastener. In this case, if the slidable contact surface of the arc-shaped tightening portion with the tightening tool is inclined with respect to the interrupting direction, the work of interrupting the tightening tool between the arc-shaped tightening portions can be performed smoothly. .
(2 ) In the above embodiment, the number of arc-shaped tightening portions is three, but the number of arc-shaped tightening portions may be two or four or more.
( 3 ) In the above embodiment, the plurality of arc-shaped tightening portions are independent from each other over the entire region in the extending direction. However, the plurality of arc-shaped tightening portions are mutually in a part in the extending direction. It may be a continuous form.
( 4 ) In the above embodiment, the number of retaining pieces is three, but the number of retaining pieces may be one, two, or four or more.
( 5 ) In the above embodiment, the retaining piece is formed on the arc-shaped connecting portion to prevent the arc-shaped connecting portion from being removed from the battery post. However, the retaining piece may not be formed on the arc-shaped connecting portion.

B ... Battery P ... Battery post T ... Battery terminal 10 ... Terminal body 11 ... Arc-shaped connecting portion 12 ... Putting piece 15A ... First arc-shaped tightening portion 15B ... Second arc-shaped tightening portion 15C ... Third arc-shaped tightening portion 20 ... Fastening tool 21 ... operation surface 22A ... first taper surface (fastening locking part, locking part)
22B ... 2nd taper surface (fastening locking part, temporary holding locking part, locking part)
22C ... 3rd taper surface (fastening locking part, temporary holding locking part, locking part)
23A ... first locking surface (tightening locking portion, locking portion)
23B ... second locking surface (fastening locking portion, temporary holding locking portion, locking portion)

Claims (4)

It is composed by attaching a fastener to the terminal body,
The terminal body includes an arc-shaped connection portion fitted on a battery post protruding from an outer surface of the battery, and a plurality of arc-shaped tightening portions extending from both ends in the circumferential direction of the arc-shaped connection portion,
The battery terminal is configured such that the arc-shaped connecting portion is deformed by reducing the diameter by interposing the clamp between the plurality of arc-shaped tightening portions and displacing the arc-shaped tightening portion. And
The interrupting direction of the fastener with respect to the arcuate fastener is the same direction as the fitting direction of fitting the arcuate connection portion to the battery post,
In the state where the fastener is assembled in the temporary holding position, the arcuate connection portion is allowed to be attached to and detached from the battery post, and the front end of the fastener in the interruption direction is the fitting in the arcuate connection portion. Evacuated to a position behind the front end of the direction,
Wherein the fastener, before Symbol interrupt direction facing rearwardly, battery terminal, characterized in that possible with the operation surface of the operation of pressing the tool said clamping to said interrupt direction is formed. In a state where the fastener is assembled at a tightening position in front of the interruption direction with respect to the temporary holding position, the arcuate connection portion is reduced in diameter so that the outer periphery of the battery post can be tightened,
The outer circumference of device the tightening includes a temporary holding latch unit for holding the pre-Symbol fastener in the temporary holding position, and prior Symbol engagement for tightening to hold the fastener in the tightening position stop portion claim 1, wherein the battery terminal, characterized in that it is formed. A plurality of locking portions are formed on the outer periphery of the fastener to hold the fastener in an assembled state with respect to the arc-shaped tightening portion by simultaneously locking the plurality of arc-shaped tightening portions.
The battery terminal according to claim 1 or 2, wherein the plurality of arc-shaped tightening portions are independent from each other over the entire region in the extending direction.   The arcuate connection portion does not interrupt the fastener between the arcuate tightening portions, and abuts the outer periphery of the battery post in a state where the arcuate connection portion is fitted to the battery post. The battery terminal according to any one of claims 1 to 3, wherein a retaining piece for retaining the arc-shaped connecting portion is formed.

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