JP2019160602A - Terminal fixing structure and bracket - Google Patents

Abstract

To provide a terminal fixing structure or the like having an excellent workability for fixing a plate-like terminal to a bracket.SOLUTION: In a terminal fixing structure fixing a ring terminal 1 to which an electric wire W is connected to a bracket 10, the bracket 10 comprises: an axial hole fixing part 11 in which the ring terminal 1 is insertably provided, and which regulates both surfaces where an axial hole 2a of the ring terminal 1 to be inserted is regulated, and which rotatably supports the ring terminal 1 as a center of the axial hole 2a; and a terminal fixing part 16 that prevents the rotation of the ring terminal 1 in both directions at a rotational completion position where the ring terminal 1 inserted into the axial hole fixing part 11 is rotated from the insertion position.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a terminal fixing structure for fixing a round terminal to which a wire is connected to a bracket, and a bracket used therefor.

  In-vehicle devices may be grounded to a housing or the like using a round terminal 1 for grounding. FIG. 5 shows a conventional terminal fixing structure for fixing a round terminal. The terminal fixing structure of FIG. 5 has a bracket 50 in which an insertion hole (not shown) is formed, a round terminal (LA terminal) 1 connected to the ground wire W, and a bolt 51. When the bracket 50 is fastened to a housing (not shown) or the like, the round terminal 1 is fastened together. The ground wire W is electrically connected to the round terminal 1, the bracket 50, and the housing (not shown), thereby forming a ground path for the in-vehicle device.

JP 2017-152350 A

  However, in the conventional terminal fixing structure, it is necessary to align the shaft hole (not shown) of the round terminal 1 and the bolt hole (not shown) of the bracket 50 and perform bolting. As a result, there was a problem that workability was poor.

  Accordingly, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a terminal fixing structure with good workability for fixing a round terminal to a bracket, and a bracket used therefor.

  The terminal fixing structure of the present invention is a terminal fixing structure for fixing a round terminal to which a wire is connected to a bracket. The bracket is provided so that the round terminal can be inserted, and the shaft of the inserted round terminal is provided. A shaft hole fixing portion that restricts both surfaces where the holes are opened and supports the round terminal rotatably around the shaft hole, and an insertion position of the round terminal inserted into the shaft hole fixing portion. And a terminal fixing portion that prevents rotation of the round terminal in both directions at a rotation completion position.

  The bracket of the present invention is a bracket for fixing a round terminal to which an electric wire is connected, the round terminal is provided so that it can be inserted, and both sides of the inserted round terminal having a shaft hole are restricted, And a shaft hole fixing portion that rotatably supports the round terminal around the shaft hole, and a rotation completion position obtained by rotating the round terminal inserted into the shaft hole fixing portion from the insertion position. And a terminal fixing portion for preventing rotation of the round terminal in both directions.

  According to the present invention, since the round terminal is inserted into the shaft hole fixing portion and can be fixed to the bracket by rotating the inserted round terminal to the rotation completion position, the workability of fixing the round terminal to the bracket is good.

1 shows an embodiment of the present invention, (a) is a perspective view of a terminal fixing structure, (b) is a sectional view taken along line A1-A1 of (a), and (c) is a sectional view taken along line B1-B1 of (a). is there. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention, (a) is a perspective view of a terminal fixing structure showing a state where a round terminal is inserted into a shaft hole fixing portion, and (b) is a sectional view taken along line A2-A2 of (a). . BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A is a perspective view of a terminal fixing structure showing a state where a round terminal is rotated to a rotation completion position, and FIG. (A)-(d) is sectional drawing which shows the modification of a shaft hole fixing | fixed part, respectively. It is a perspective view of the terminal fixing structure of a prior art example.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  1 to 4 show an embodiment of the present invention. As shown in FIG. 1, the terminal fixing structure includes a round terminal 1 that is a plate-like terminal to which a ground wire W is connected, and a bracket 10 that fixes the round terminal 1.

  The ground wire W has a proximal end connected to a minus terminal of an in-vehicle device (not shown).

  The round terminal 1 includes a thin plate-like circular terminal main body 2 having a shaft hole 2a at the center thereof, and a wire crimping portion 3 that is provided integrally with the circular terminal main body 2 and that crimps and connects the distal end side of the ground wire W. And have. The round terminal (LA terminal) 1 is a product conforming to JIS D-5403 (automotive wire terminal) and JIS C-2805 (wire crimp terminal).

  The bracket 10 is formed by cutting a flat plate of a conductive member into a predetermined shape and bending it into a predetermined shape. The bracket 10 is fixed to the vehicle body side (for example, a housing) with bolts or the like. The bracket 10 includes a shaft hole fixing portion 11 and a terminal fixing portion 16.

  The shaft hole fixing portion 11 includes a base plate portion 12, a vertical wall portion 13 bent from one end side of the base plate portion 12, and a sandwiching plate portion 14 bent from the upper end of the vertical wall portion 13. The sandwiching plate portion 14 is disposed in parallel to the base plate portion 12. A space between the clamping plate portion 14 and the base plate portion 12 is formed in the terminal clamping space S. The terminal clamping space S is formed to have a width dimension d (shown in FIG. 1B) that is approximately the same as the thickness of the circular terminal body 2 of the round terminal 1. In the terminal clamping space S, the side opposite to the vertical wall portion 13 is the insertion direction of the round terminal 1.

  The holding plate portion 14 is provided with a support protrusion 15 protruding into the terminal holding space S. The support protrusion 15 is a cylindrical (columnar) protrusion having a dimension that can be inserted into the shaft hole 2a of the round terminal 1 without a gap. The round terminal 1 inserted into the terminal clamping space S is regulated (positioned) in the vertical direction by its upper and lower surfaces being in close contact with the base plate part 12 and the clamping wall part, respectively. The round terminal 1 is rotatably supported by inserting a support protrusion 15 into the shaft hole 2a.

  The terminal fixing portion 16 is formed by bending the leaf spring portion 17 and the leaf spring portion 17 formed by two parallel slits of the base plate portion 12, and preventing reverse rotation protruding from the upper surface of the base plate portion 12. Part 18 and an excessive rotation blocking part 19 bent in the vertical direction from one end side of the base plate part 12.

  The reverse rotation preventing portion 18 has a tapered surface 18a that gradually increases in the rotation direction from the insertion position of the round terminal 1 to the rotation completion position, and from the rotation completion position of the round terminal 1 to the insertion position. A rotation restricting surface 18b that abuts against the wire crimping portion 3 of the round terminal 1 with respect to the rotation direction. The rotation restricting surface 18 b is formed in a surface shape that substantially follows the outer surface of the wire crimping portion 3 of the round terminal 1.

  With such a configuration, the reverse rotation prevention unit 18 allows rotation of the round terminal 1 from the insertion position at the shaft hole fixing part 11 to the rotation completion position rotated 90 degrees, and the round terminal 1 is The rotation from the rotation completion position to the insertion position at the shaft hole fixing portion 11 is prevented.

  The excessive rotation prevention unit 19 prevents rotation of the round terminal 1 in the direction beyond the rotation completion position. The terminal fixing portion 16 prevents the round terminal 1 inserted in the shaft hole fixing portion 11 from rotating in both directions of the round terminal 1 at a rotation completion position rotated 90 degrees from the insertion position.

  Next, an operation for attaching the round terminal 1 to the bracket 10 will be described. As shown in FIG. 2, the round terminal 1 is inserted into the terminal clamping space S of the shaft hole fixing portion 11. The round terminal 1 inserted into the terminal clamping space S has its upper and lower surfaces in close contact with the base plate portion 12 and the clamping wall portion 14 and is regulated (positioned) in the vertical direction, and is supported by the shaft hole 2a. Part 15 is fitted.

  Next, as shown in FIG. 3, the round terminal 1 inserted in the shaft hole fixing is rotated. The round terminal 1 gets over the taper surface 18a of the reverse rotation prevention part 18 due to the bending deformation of the leaf spring part 17 and rotates to the rotation completion position. The round terminal 1 that has rotated to the rotation completion position is prevented from rotating in both directions by the rotation restricting surface 18 b of the reverse rotation blocking unit 18 and the excessive rotation blocking unit 19. Thereby, the round terminal 1 is fixed to the bracket 10.

  As described above, the round terminal 1 can be fixed to the bracket 10 by inserting the round terminal 1 into the shaft hole fixing portion 11 and rotating the inserted round terminal 1 to the rotation completion position. Since the fixing work is simple and can be performed in a short time, the workability is good.

  Since the entire area of both surfaces of the circular terminal main body 2 is in close contact with the base plate portion 12 and the sandwiching plate portion 14, the round terminal 1 can secure a sufficient grounding area.

  The bracket 10 can be provided with the shaft hole fixing portion 11 and the terminal fixing portion 16 at desired positions separately from a position where the bracket 10 is fixed to the vehicle body side (for example, a housing) with a bolt or the like. Therefore, the ground connection is possible at a free position on the vehicle body side (for example, the housing). For example, the ground wire W can be installed at a position where the minimum length can be set, or the bracket 10 can be shared by a plurality of vehicle types and grades. If the bracket 10 is configured so that it can be shared by a plurality of vehicle types and grades, it is possible to reduce the number of man-hours and the period for designing the bracket 10 as compared with the case where individual design or the like is performed.

  In this embodiment, the shaft hole fixing portion 11 has a terminal pinching space S between the base plate portion 12 and the base plate portion 12, and a pinching plate portion that holds the round terminal 1 inserted into the terminal pinching space S. 14 and at least one of the sandwiching plate portion 14 and the base plate portion 12 and projecting in the terminal sandwiching space S, and comprising a support projecting portion 15 inserted into the shaft hole 2a of the round terminal 1, A configuration in which the shaped terminal 1 is provided so as to be insertable, and both open surfaces of the shaft hole 2a of the inserted round terminal 1 are regulated, and the round terminal 1 is rotatably supported around the shaft hole 2a. If it is good.

  In this embodiment, the terminal fixing portion 16 is provided by bending the base plate portion 12, allows rotation from the insertion position at the shaft hole fixing portion 11 of the round terminal 1 to the rotation completion position, and A reverse rotation blocking portion 18 for blocking rotation from the rotation completion position of the round terminal 1 to the insertion position side at the shaft hole fixing portion 11, and a direction bent from the base plate portion 12 and extending beyond the rotation completion position The over-rotation preventing portion 19 prevents the rotation of the round terminal 1, but the round terminal 1 inserted in the shaft hole fixing portion 11 is rotated from the insertion position at the rotation completion position in both directions. Any configuration that prevents rotation is acceptable.

  In this embodiment, the terminal fixing part 16 is provided at the 90-degree rotation position of the round terminal 1 inserted in the shaft hole fixing part 11, but any rotation angle is acceptable.

  FIG. 4 shows each modification of the shaft hole fixing portion 11. In the first modification of FIG. 4A, the base plate portion 12 is provided with a cylindrical (columnar) support protrusion 15. In the second modified example of FIG. 4B, a cylindrical support protrusion 15 that is cut into a tapered shape when viewed from the side is provided on the sandwiching plate portion 14. Due to the tapered shape, the round terminal 1 can be smoothly inserted into the terminal clamping space S. In the third modification of FIG. 4C, support protrusions 15 are provided on both the base plate portion 12 and the sandwiching plate portion 14. Each support protrusion 15 has a spherical shape. Due to the spherical shape, the round terminal 1 can be smoothly inserted into the terminal holding space S. In the fourth modified example of FIG. 4D, a cylindrical (columnar) support protrusion 15 is provided on the clamping surface portion as in the above embodiment, but the clamping plate portion 14 is the entrance of the terminal clamping space S. It is inclined to narrow the direction. The clamping force to the round terminal 1 becomes strong, and reliable contact is possible.

W Electric wire 1 Round terminal (Plate terminal)
DESCRIPTION OF SYMBOLS 2 Circular terminal main-body part 2a Shaft hole 10 Bracket 11 Shaft hole fixing | fixed part 12 Base board part 14 Clamping plate part 15 Supporting protrusion 16 Terminal fixing | fixed part 18 Reverse rotation prevention part 19 Excess rotation prevention part S Terminal clamping space

Claims (4)

In the terminal fixing structure that fixes the plate-like terminal to which the wire is connected to the bracket,
The bracket is provided so that the plate-like terminal can be inserted therein, restricts both surfaces of the inserted plate-like terminal where the shaft hole is opened, and allows the plate-like terminal to rotate about the shaft hole. A supporting shaft hole fixing part;
A terminal fixing comprising: a terminal fixing portion that prevents rotation of the plate terminal in both directions at a rotation completion position obtained by rotating the plate terminal inserted into the shaft hole fixing portion from an insertion position. Construction. The terminal fixing structure according to claim 1,
The shaft hole fixing portion includes a base plate portion and a base plate portion as a terminal holding space, a holding plate portion that holds the plate-like terminal inserted into the terminal holding space, the holding plate portion, and the A support protrusion that protrudes into the terminal clamping space on at least one of the base plate portions and is inserted into the shaft hole of the plate terminal;
The terminal fixing portion is provided by bending the base plate portion, allows rotation of the plate terminal from the insertion position at the shaft hole fixing portion to a rotation completion position, and the plate terminal. A reverse rotation blocking unit for blocking rotation from the rotation completion position to the insertion position at the shaft hole fixing unit;
A terminal fixing structure, comprising: an excessive rotation blocking portion that is bent from the base plate portion and blocks rotation in a direction beyond a rotation completion position. In the bracket for fixing the plate terminal to which the electric wire W is connected,
A shaft hole in which the plate-like terminal is provided so as to be insertable, restricts both surfaces of the inserted plate-like terminal where the shaft hole is opened, and supports the plate-like terminal rotatably around the shaft hole. A fixed part;
A bracket comprising: a terminal fixing portion that prevents rotation of the plate-shaped terminal in both directions at a rotation completion position obtained by rotating the plate-shaped terminal inserted into the shaft hole fixing portion from an insertion position. The bracket according to claim 3, wherein
The shaft hole fixing portion serves as a terminal holding space between the base plate portion and the base plate portion, and holds the plate-like terminal inserted into the terminal holding space in a direction orthogonal to the shaft hole by a spring return force. A plate portion, and at least one of the sandwich plate portion and the base plate portion, projecting in the terminal sandwiching space, and having a support projection inserted into the shaft hole of the plate terminal,
The terminal fixing portion is provided by bending the base plate portion, allows rotation of the plate terminal from the insertion position at the shaft hole fixing portion to a rotation completion position, and the plate terminal. A reverse rotation blocking unit for blocking rotation from the rotation completion position to the insertion position at the shaft hole fixing unit;
A bracket comprising: an over-rotation preventing portion that is bent from the base plate portion and prevents rotation in a direction beyond a rotation completion position.

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