JPH10199601A - La terminal with nut - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an external-diametric dimension from increasing, improve an assembling property, and reduce cost. SOLUTION: The LA terminal 10 with a nut includes an LA terminal body 19 that is formed in incorporation with a screw stopping plate 14 with a screw insertion hole 13 and a wire crimp part 17 to which a wire end is crimp connected, and nut member 20 that is threadedly engaged with a male screw inserted through the screw passing hole to be attached to the screw locking plate 14. The nut member 20 has a narrow diametric section 21 that can be inserted in the screw insertion hole 13 of the screw locking plate 14 for the crimp terminal body 19, and an engaging groove 22 around the base end periphery of this narrow diametric section 21. A locking piece 11 formed integrally with the inside peripheral edge of the screw insertion hole 13 is engaged with the engaging groove 22 to hold the nut member 20 on the screw locking plate 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved LA terminal with a nut in which a nut member is attached to a screwing plate portion to facilitate the work of screwing the LA terminal.

[0002]

2. Description of the Related Art An ordinary LA terminal has a structure in which a screwing plate portion having a screw insertion hole and an electric wire crimping portion to which an electric wire end is crimped are integrally formed by a metal plate. When fixing the LA terminal to a stud bolt implanted in a terminal connection portion of an electric device or the like, first, a state where the stud bolt is inserted into the screw insertion hole of the screwing plate portion is set. After that, while holding the LA terminal with one hand, the nut member must be tightened to the stud bolt with the other hand, and if both hands need to be put in a narrow place, the nut member falls. For example, there is a problem that the work is very difficult.

Therefore, as shown in FIGS. 7 and 8, an LA terminal body in which a screwing plate portion 1 having a screw insertion hole and an electric wire crimping portion 2 to which an electric wire end is crimped and connected is integrally formed by a metal plate. 3 and a nut which is mounted on the screwing plate 1 by a locking piece 5 formed integrally with the screwing plate 1, and is screwed into a male screw (stud bolt) inserted through the screw insertion hole. A nut-equipped LA terminal 8 having a member 6 has been proposed (see Japanese Utility Model Laid-Open No. 54-35397).

In the case of this example, the nut member 6 is configured as shown in FIG.
As shown in FIG. 1, a flange-shaped flange portion 9 is provided at one end. The locking piece 5 of the screwing plate portion 1 is a claw-shaped member extending from the outer peripheral edge of the screwing plate portion 1, and as shown in FIG.
The nut member 6 is held by press-forming a substantially U-shaped cross section sandwiching the periphery of the nut member 6.

[0005]

However, in the LA terminal 8 with the nut described above, a special press-molding die is required in order to press-mold the locking piece 5 into a substantially U-shaped cross section, and the processing cost is increased. However, there was a problem that the bulk increased. Further, since the locking piece 5 presses the nut member 6 so as to grip it from the outside, there is a problem that the outer diameter of the LA terminal becomes large.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned problems. A special press-molding die is not required, the nut member can be easily attached to the screwing plate portion, and cost reduction and assembly are possible. It is an object of the present invention to provide a nut-equipped LA terminal capable of improving the performance and preventing an increase in the outer diameter.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an LA terminal body integrally formed with a screwing plate portion having a screw insertion hole and an electric wire crimping portion to which an electric wire end is crimped. A nut member attached to the stopper plate and screwed into a male screw inserted through the screw insertion hole.
A terminal, wherein the nut member includes an engagement groove formed on an outer periphery of a base end of a small-diameter portion that can be inserted into a screw insertion hole of the screw-fastening plate portion. This is achieved by a nut-equipped LA terminal, wherein an engaging portion integrally formed on a peripheral edge engages with the engaging groove to hold the nut member on the screwing plate portion.

Preferably, the engaging portion projects from the inner peripheral edge of the screw insertion hole obliquely upward of the nut mounting surface, and presses the nut end surface located at the base end of the small diameter portion. The urged distal end of the engaging portion is plastically deformed in a direction of protruding into the engaging groove, thereby engaging with the engaging groove and holding the nut member on the screwing plate portion. or,
Preferably, the engaging portion comprises a plurality of claw-shaped locking pieces protruding from the inner peripheral edge of the screw insertion hole, or a ring-shaped portion extending along the inner peripheral edge of the screw insertion hole.

According to the above configuration, the nut member is simply held on the screw-fixing plate by simply pressing the nut member against the screw-fixing plate of the LA terminal main body. Since a press mold is not required, cost can be reduced and assemblability can be improved. In addition, the locking piece for holding the nut member is protrudingly provided on the inner peripheral edge of the screw insertion hole of the screwing plate portion,
Since it does not affect the external dimensions of the screwing plate, LA
It is also possible to prevent an increase in the outer diameter of the terminal.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the accompanying drawings. 1 to 5 show an LA terminal with a nut according to one embodiment of the present invention. FIG. 1 is a perspective view of an assembled state of the LA terminal 10 with a nut, and FIG. 2 is a line AA in FIG. 3, FIG. 3 is an exploded perspective view of the LA-attached terminal 10 shown in FIG. 1, and FIGS. 4 and 5 are longitudinal sectional views illustrating a state of the assembling work of the LA-attached terminal 10 shown in FIG. It is.

The LA terminal with nut 10 of the present embodiment is formed by pressing a metal plate with a screwing plate portion 14 having a screw insertion hole 13 and an electric wire crimping portion 17 to which an end of an electric wire 16 is crimped. An LA terminal body 19 integrally formed with the screw insertion hole 13 attached to the screwing plate portion 14;
And a nut member 20 that is screwed into a male screw such as a stud bolt through which the nut is inserted.

The nut member 20 includes a small-diameter portion 21 that can be inserted into the screw insertion hole 13 of the screw-fixing plate portion 14, and an engagement groove 22 provided on the outer periphery of the base end of the small-diameter portion 21. Is provided. In the inner peripheral edge of the screw insertion hole 13, the nut member 20 is engaged with the engagement groove 22 and the nut
A plurality of claw-shaped locking pieces 11 which are locking portions to be held by 4 are integrally formed.

The locking piece 11 of the screwing plate portion 14 is
At the time of press-punching of the screwing plate portion 14, a part of the inner peripheral edge of the screw insertion hole 13 is cut and raised so as to be directed radially inward from the inner peripheral edge of the screw insertion hole 13. It protrudes obliquely upward from the nut mounting surface of the plate portion 14. In the case of this embodiment,
The locking pieces 11 are provided at four locations at equal intervals along the inner peripheral edge of the screw insertion hole 13.

Further, as shown in FIG. 2 and FIG.
Outer diameter D of diameter part 21₁, Each locking piece 1 projecting obliquely
Inner diameter D by the tip of 1_Two, And of the screw insertion hole 13
Inner diameter D_ThreeIs D₁<D_Two<D_ThreeTo satisfy each part
Is set. And as shown in FIG.
At the base end of the small-diameter portion 21 of the nut member 20.
The nut end face 23 is brought into contact with the tip of each of the locking pieces 11
After that, a predetermined pressing force F ₁To the screwing plate 14 with the nut.
When the pressing member 20 is pressed, the nut end face 23
The bending force F_TwoActs, and this bending force F
_TwoThe locking piece 11 is plastic in the direction in which the inclination is eliminated.
It is deformed, and as shown in FIG.
Since it protrudes into the engagement groove 22 of the small diameter portion 21, the nut
In this state, the locking member 20 is held by the screwing plate portion 14.
You.

[0015] However, as shown in FIG.
The locking piece 1 is plastically deformed by the pressing force of the nut member 20.
1 in a state where the tip portion is engaged with the engagement groove 22,
Inner diameter D of engagement groove 22_FourAnd the tip of each locking piece 11
Inner diameter D_FiveIs D_Four<D_Five<D ₁So that each person in charge
The protruding length of the stopper 11 is set. Therefore, each lock
When the piece 11 is engaged with the engagement groove 22, the screwing plate portion is formed.
14, the nut member 20 can rotate freely.
Can be.

According to the configuration of the LA terminal 10 of the present embodiment, the nut member 20 is easily held on the screwing plate portion 14 simply by pressing the nut member 20 against the screwing plate portion 14 of the LA terminal body 19. And the nut member 2
Since no special press mold is required for mounting 0,
The cost can be reduced and the assemblability can be improved.
Also, each locking piece 11 for holding the nut member 20
Is projected inside the screw insertion hole 13 of the screwing plate portion 14 and does not affect the external dimensions of the screwing plate portion 14, thereby preventing the outer diameter of the LA terminal from increasing. You can also.

It should be noted that the LA terminal with nut of the present invention is not limited to the configuration of the above-described embodiment, but may take various forms based on the gist of the present invention. For example, in the nut-equipped LA terminal 10 of the embodiment, the engaging portion for holding the nut member 20 on the screwing plate portion 14 has a claw-like shape in which a part of the inner periphery of the screw insertion hole 13 is cut and raised. Although the locking portion 11 is configured, the engagement portion is configured as a ring-shaped portion 31 extending along the inner peripheral edge of the screw insertion hole of the LA terminal main body 32 as in the LA terminal 30 illustrated in FIG. You may. This ring-shaped portion 31
When the LA terminal body 32 is stamped out by pressing, the inner peripheral edge of the screw insertion hole can be obtained by extending and forming a thin ring portion obliquely projecting obliquely upward to the nut mounting surface of the screwing plate portion 33. it can.

[0018]

According to the LA terminal with nut of the present invention, the nut member is simply held on the screw plate by simply pressing the nut member against the screw plate of the LA terminal body. Since a special press mold is not required for mounting the nut member, the cost can be reduced and the assemblability can be improved. Further, the engaging portion for holding the nut member is formed integrally with the inner peripheral edge of the screw insertion hole of the screwing plate portion, and does not affect the external dimensions of the screwing plate portion. It is also possible to prevent an increase in the outer diameter dimension.

[Brief description of the drawings]

FIG. 1 is a perspective view of an assembled state of an LA terminal with a nut according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an exploded perspective view of the LA-equipped LA terminal shown in FIG. 1;

FIG. 4 is a longitudinal sectional view for explaining a state of an assembling operation of the LA terminal with a nut shown in FIG. 3;

FIG. 5 is a longitudinal sectional view for explaining a state of an assembling operation of the LA terminal with a nut shown in FIG. 3;

FIG. 6 is an exploded perspective view showing another embodiment of the nut-equipped LA terminal shown in FIG. 3;

FIG. 7 is a plan view of a conventional LA terminal with a nut.

FIG. 8 is a front view of a conventional LA terminal with a nut.

[Explanation of symbols]

 Reference Signs List 10 LA terminal with nut 11 Locking piece 13 Screw insertion hole 14 Screw fixing plate part 16 Electric wire 17 Electric wire crimping part 19 LA terminal main body 20 Nut member 21 Small diameter part 22 Engagement groove

Claims (4)

[Claims] An LA integrally formed with a screwing plate portion having a screw insertion hole and an electric wire crimping portion to which an electric wire end is crimped and connected.
An LA terminal with a nut, comprising: a terminal main body; and a nut member attached to the screwing plate portion and screwed into a male screw inserted through the screw insertion hole, wherein the nut member includes the screwing plate. An engagement groove provided on the outer periphery of the base end of the small-diameter portion that can be inserted into the screw insertion hole of the portion, and a locking portion integrally formed on an inner peripheral edge of the screw insertion hole is provided in the engagement groove. An LA terminal with a nut, which is engaged to hold the nut member on the screwing plate portion. 2. The nut according to claim 1, wherein said engaging portion projects from an inner peripheral edge of said screw insertion hole obliquely upward of a nut mounting surface, and presses against a nut end surface located at a base end of said small diameter portion. The distal end of the engaged portion is plastically deformed in a direction of protruding into the engagement groove, thereby engaging with the engagement groove, and holding the nut member on the screwing plate portion. The LA terminal with a nut according to claim 1. 3. The LA terminal with a nut according to claim 2, wherein said engaging portion comprises a plurality of claw-like projections projecting from an inner peripheral edge of said screw insertion hole. 4. The LA terminal with a nut according to claim 2, wherein the engagement portion comprises a ring-shaped portion extending along an inner peripheral edge of the screw insertion hole.