JPH0124854Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention relates to an unlocking device for a quick-connect terminal device having a wire locking spring, and an unlocking device for a quick-connect terminal device that can be unlocked by inserting a wire conductor. Provide a locking device.

BACKGROUND ART In general, there are two methods for unlocking a quick-connect terminal device: one is to directly unlock the locking spring with a screwdriver, and the other is to unlock the locking spring by interposing an insulator between the locking spring and the screwdriver.

Problems that the invention aims to solve: The above-mentioned method of directly unlocking the lock spring with a screwdriver may deform or damage the lock spring, which may cause abnormal heat generation or prevent the lock from functioning properly. It was something that would disappear.

On the other hand, there is a method that eliminates the above-mentioned drawbacks and electric shock by using an insulator, but it is economically disadvantageous because it increases the number of parts and the number of assembly steps. In addition, in either case, a large hole is required for inserting a screwdriver, which requires a large space, and the lock cannot be unlocked without a screwdriver.

The present invention attempts to eliminate the above-mentioned drawbacks by making it possible to unlock using a wire conductor.

Means for Solving the Problems The present invention provides a first wire conductor connection portion and a hole for receiving a second wire conductor, and locks the second wire conductor inserted through the hole with a locking spring. In the quick-connect terminal device for locking, a support member facing a side surface of a second wire conductor inserted through the hole, a support member that is biased in a direction opposite to the direction of insertion of the second wire conductor, and a second wire conductor at an end thereof; A locking spring press-contacts the wire to the support member, an unlocking hole opened in a direction substantially perpendicular to the hole, and a third electric wire conductor inserted through the unlocking hole. a sloped groove for guiding the locking spring to move in a direction opposite to the biasing direction; and means for electrically connecting the first wire conductor connection portion and the second wire conductor inserted through the hole. It is intended to provide

Effect According to the above configuration, the second
The second wire conductor is fixed between the locking spring and the support member, and in this state, the second wire conductor is fixed to the first wire conductor.
electrically conductive with the wire conductor connection part. and,
When the third wire conductor is inserted through the unlocking hole, the locking spring is moved in the opposite direction to its biasing direction.
Release the second wire conductor. In this way, the lock can be easily unlocked using the electric wire conductor.

Example The present invention will be explained below with reference to examples.

In the figure, 1 is an insulating box body, the bottom wall is provided with a hole 2 for receiving the second electric wire conductor 14, one side wall is provided with a notch 3 through which the first electric wire conductor (not shown) is inserted, and It has a partition plate part 4 provided inside to separate a first wire conductor connection part and a quick connection terminal part, which will be described later, and a recess 5 for a lid stop formed on the inner surface of the side wall. Reference numeral 8 denotes a conductive plate, which is formed into an almost frame shape and has a first plate on a piece extending to one side.
It has a round hole 7 for soldering as a wire conductor connection part, and a sloped groove 6 for guiding the third wire conductor 15 in a part of the inside. Reference numeral 10 denotes a locking spring that is formed into an approximately L shape and has a locking piece 9 bent at a certain angle at one end. 12 is the insulation box 1
It is an insulating cover formed into a plate shape that fits the
It has an unlocking hole 11 for inserting the third electric wire conductor 15, and a locking projection 13 that fits into the recess 5 of the insulating box 1 on the outer periphery.

The conductive plate 8 is provided so that its frame-shaped part runs along the inside of one of the chambers partitioned by the partition plate part 9 of the insulating box 1, and the extending piece with the round soldering hole 7 runs along the inside of the other chamber. It is provided so that it is guided inward. Further, the locking spring 10 is attached to the inside of the frame-shaped portion of the conductive plate 8,
The locking piece 9 faces the portion of the conductive plate 8 having the groove 6 with a small gap, and the tip of the locking piece 9 is located above the hole 2 of the insulating box 1 and is located in the frame shape of the conductive plate 8. and one side wall of the section to form a small gap. The insulating cover 12 is attached to the insulating box 1 by fitting the locking protrusion 13 on the outer periphery into the recess 5 of the insulating box 1, and the unlocking hole 11 is placed opposite the groove 6 of the conductive plate 8. ing.

FIG. 2 is a diagram showing the locked state, in which the wire conductor 14 is inserted through the hole 2 of the insulating box 1, pushing up the locking piece 9, and is pressed and locked by the elasticity of the locking spring 10.

FIG. 3 is a side view of the unlocked state, and FIG. 4 is a sectional view of the unlocked state. By inserting the unlocking wire conductor 15 into the sloped groove 6 of the conductive plate 8, the locking spring can be activated. The locking portion 9 of 10 is pushed up beyond the locked state, and the wire conductor 14 is unlocked. After the wire conductor 14 is removed, the wire conductor 15 is connected to the locking spring 10 and the conductive plate 8.
The distance between the two will be smaller, but it will not become locked, so you can exit smoothly.

In the above embodiment, the third electric wire conductor guide groove 6
is provided on the conductive plate 8, but the conductive plate in that portion may be omitted and provided on the bottom wall of the box body 1. Further, the unlocking hole 11 may be provided on the back surface of the box body 1, and in that case, the groove 6 has a reverse slope. Although the portion of the conductive plate 8 along the partition plate 4 was used as a support member that faces and supports the side surface of the wire conductor 14 pressed by the spring 10, the wire conductor 14 may be brought into direct contact with the partition plate 4. The inner wall surface of the box 1 may be used as a support member. In that case, the conductive plate 8 having the hole 7 and the wire conductor 14 are electrically connected via the spring 10.

Effects of the invention According to the invention, the space required for unlocking can be reduced, which is economically advantageous. In addition, since the insertion force of the wire is smaller than that of a screwdriver, it will not deform the locking spring or destroy the insulating box, and the wire conductor is softer than the locking spring, so it will not damage the locking spring. This improves reliability when rewiring. Furthermore, since the groove is sloped, insertion is easy and the wire conductor, which is easily deformed, has a good guiding effect.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of a quick-connect terminal device according to an embodiment of the present invention, FIG. 2 is a front view in cross section of a locked state, and FIG. 3 is a front view of a cross section of an unlocked state.
FIG. 4 is a cross-sectional side view of the unlocked state. 1... Insulating box, 2... Hole, 4... Partition plate, 6
...Groove, 7...First wire conductor connection hole, 8...
Conductive plate, 10... locking spring, 11... unlocking hole,
14... Second electric wire conductor, 15... Third electric wire conductor.

Claims (1)

[Scope of utility model registration request] In a quick-connect terminal device that includes a first wire conductor connection portion and a hole for receiving a second wire conductor, and locks the second wire conductor inserted through the hole with a locking spring, the second wire conductor is inserted through the hole. a support member facing a side surface of the second electric wire conductor, a locking spring that is biased in a direction opposite to the insertion direction of the second electric wire conductor and press-contacts the second electric wire conductor to the support member at its end; An unlocking hole is opened in a direction substantially perpendicular to the hole, and as the third wire conductor is inserted through the unlocking hole, the locking spring is moved in a direction opposite to the biasing direction as the third wire conductor is inserted through the unlocking hole. An unlocking device for a quick-connect terminal device, comprising: a sloped groove for guiding the first wire conductor connection portion and a second wire conductor inserted through the hole; .