JPH0615267U - Washer with check terminal - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent rotation of washers with check terminals so that washers or probe tips during measurement do not come into contact with each other. [Structure] Washers with check terminals 11, 1 fixed to the upper surface of a terminal block 3 together with a crimp terminal 1 with a set screw 4.
3, rotation preventing portions 12 and 14 are provided to prevent the rotation of the washer itself by abuttingly engaging the side surface of the terminal block. Also,
The screw insertion holes 6 of the washers 11 and 13 are elongated holes.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a washer with a check terminal that is screwed and fixed on a terminal block together with a terminal such as a crimp terminal.

[0002]

[Prior art]

 Conventionally, when connecting a cord of an electric device to a terminal block provided at a connection point of an electric circuit, a crimp terminal 1 and a washer with a check terminal (hereinafter simply referred to as a washer) 2 are connected as shown in FIGS. 6 and 7. The washer 2 is fixed to the terminal block 3 by a set screw 4, and the characteristic measurement is performed by connecting the washer 2 to the probe tip of the measuring instrument such as an crocodile clip 7 when measuring the characteristic with a measuring instrument such as a voltmeter. The crimp terminal 1 is formed by punching a metal plate, and the U-shaped (or annular) fixed portion 1A fixed by the set screw 4 and the core wire tip of the cord 5 are inserted and connected. It is composed of a pipe-shaped cord connecting portion 1B. The crimp terminal 1 and the cord 5 are connected by inserting the tip end of the core wire into the cord connecting portion 1B and then crushing the cord connecting portion 1B with a normal tool or the like. The washer 2 is composed of a fixed base portion 2A and a check terminal portion 2B which are orthogonal to each other by being formed into an L shape by bending a metal plate, and the fixed base portion 2A is inserted into the screw insertion hole 6. It is fixed on the terminal block 3 together with the crimp terminal 1 by the set screw 4, and the check terminal portion 2B is clamped by the crocodile clip 7. Further, instead of the crocodile clip 7, the check terminal portion 2B is formed with a hook hole 8 for enabling a hook-shaped hook (not shown) to be locked.

[0003]

[Problems to be solved by the device]

 By the way, a partition wall 9 is provided on the upper surface of the terminal block 3 so as to prevent a short circuit between adjacent washers (and crimp terminals), but an appropriate gap is provided between the washer 2 and the partition wall 9. Since d is present, if the setscrew 4 is loosened when tightening the setscrew 4 or due to vibration, etc., the washer 2 rotates around the setscrew 4 and the adjacent washers or the probe tip of the measuring instrument are rotated. There was a problem that the parts contacted each other and short-circuited.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to prevent rotation of the washers and prevent the washers from being connected to each other or the probe tip ends at the time of measurement. It is to provide a washer with a check terminal that can surely prevent contact.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is provided with a long hole-shaped screw insertion hole through which a set screw is inserted into a washer with a check terminal, and a rotation prevention portion that abuts the side surface of the terminal block and prevents rotation of the washer. It is a thing.

[0006]

[Action]

 In the present invention, the screw insertion hole is a long hole so that the size of the washer protruding from the terminal block can be arbitrarily changed. The rotation prevention part comes into contact with the side surface of the terminal block to prevent the rotation of the washer from being restricted.

[0007]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. 1 is a plan view showing an embodiment of a washer with a check terminal according to the present invention, FIG. 2 is a perspective view of the washer and a crimp terminal, and FIG. 3 is a perspective view showing another embodiment of the washer. It should be noted that, in the drawings, the same components as those shown in FIGS. 6 and 7 are designated by the same reference numerals, and their description will be omitted. In these drawings, the washer 11 fixed to the right end of the upper surface of the terminal block 3 together with the crimp terminal 1 by the set screw 4 is bent in an L-shape to form the fixed base portion 11A and the fixed base portion 11A. A check terminal portion 11B is provided integrally with the tip at a position substantially orthogonal thereto, and a rotation prevention portion 12 bent in an inverted L shape is provided near the tip of the right side surface of the fixed base portion 11A. It is provided in one body. The fixed base portion 11A has a screw insertion hole 6 which is a long hole elongated in the longitudinal direction of the washer 11 formed at the center in the width direction and is placed on the fixed portion 1A of the crimp terminal 1 and the screw insertion hole 6 is provided. It is fixed on the terminal block 3 together with the fixed portion 1A by the setscrew 4 inserted through. By this fixing, the vertical piece 12a extending below the rotation preventing portion 12 contacts the right side surface 3a of the terminal block 3 to prevent the washer 11 from rotating counterclockwise in FIG.

Another washer that is fixed together with the crimp terminal 1 to a terminal mounting portion other than both ends on the upper surface of the terminal block 3, for example, a washer 13 fixed to the left side of the washer 11 adjacent to the washer 13 is L-shaped. The fixed base portion 13A is integrally formed with the fixed base portion 13A and the check terminal portion 13B provided at the tip of the fixed base portion 13A so as to be substantially orthogonal to the fixed base portion 13A, and the crimp terminal of the fixed base portion 13A is formed. A rotation preventing portion 14 bent downward in a U-shape is integrally provided at the side end. The fixed base portion 13A is mounted on the fixed portion 1A of the crimp terminal 1 from a long hole that is long in the longitudinal direction of the washer 13 formed at the center in the width direction and is placed on the fixed portion 1A of the crimp terminal 1. It is fixed on the terminal block 3 together with the fixed portion 1A by the set screw 4 that is inserted. By this fixing, the rotation preventing portion 14 comes into contact with the front side surface 3b of the terminal block 3 to prevent the washer 13 from rotating in the clockwise and counterclockwise directions of FIG.

Although the washer fixed to the left end of the upper surface of the terminal block 3 is not shown, it is formed in a symmetrical shape with the washer 11 so that it has an inverted L-shape on the left side of the fixed base. The rotation prevention unit is integrally provided.

Thus, the washers 11 and 13 having such a structure are integrally provided with the rotation preventing portions 12 and 14 that come into contact with and engage with the side surface of the terminal block. Even if there is a large gap, the set screw 4 is tightened, or the set screw 4 is loosened, the washers 11 and 13 can be reliably prevented from coming into contact with each other without rotating. Further, since the screw insertion hole 6 is a long hole, if the projecting dimension L is changed every other washer so that the check terminal portions 11 and 13B projecting forward of the terminal block 3 have a zigzag shape, at the time of measurement. Mutual contact between the probe tips can be prevented.

4 and 5 are a sectional view and a plan view showing another embodiment of the present invention. In this embodiment, the screw insertion hole 6 of the washer 13 is screwed with the screw portion 4A of the set screw 4, and one end communicates with this screw hole 6A and the hole width is smaller than the root diameter of the screw hole 6A. The long hole 6B has a key hole shape, and a small diameter portion 6C having a diameter smaller than the hole width of the long hole 6B is provided between the screw portion 4A of the set screw 4 and the head portion 4B. In such a configuration, if the screw portion 4A of the set screw 4 is screwed into the screw hole 6A so as to protrude below the washer 13 and the small diameter portion 4C is positioned inside the screw insertion hole 6, the washer 13 and the crimp Even if the terminal is removed from the terminal block, the set screw 4 does not separate from the washer 13 and does not fall off, so that it can be prevented from being lost.

[0012]

[Effect of device]

 As described above, according to the washer with a check terminal of the present invention, since the rotation preventing portion that abuts and engages with the terminal block side surface is provided, the rotation of the washer can be reliably prevented. It is possible to reliably prevent contact between adjacent washers or probe tips during measurement. Also, since the screw insertion hole of the washer is a long hole, the protrusion size of the washer from the terminal block can be changed arbitrarily. Especially, if the protrusion size of adjacent washers is made different, the probe tip parts will be different. Contact can be prevented even more reliably.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a washer with a check terminal according to the present invention.

FIG. 2 is a perspective view of a crimp terminal and a washer.

FIG. 3 is a perspective view showing another embodiment of the washer.

FIG. 4 is a sectional view showing another embodiment of the present invention.

FIG. 5 is a plan view.

FIG. 6 is a plan view showing a conventional example of a washer with a check terminal.

FIG. 7 is a perspective view of the washer.

[Explanation of symbols]

 1 Crimp terminal 2 Washer with check terminal 3 Terminal block 4 Set screw 6 Screw insertion hole 11,13 Washer 12,14 Rotation prevention part

Claims (1)

[Scope of utility model registration request] 1. A washer with a check terminal screwed and fixed to a terminal block together with a terminal, wherein a washer having a long hole shape into which a setscrew is inserted into the washer with the check terminal and a washer abutting on a side surface of the terminal block. A washer with a check terminal, which is provided with a rotation preventing portion for preventing rotation of the.