JPH0542118B2 - - Google Patents

Abstract

PURPOSE:To obtain a low insertion/pulling-out force connector which enables fellow housings to be inserted in/pulled out from each other with low insertion and pulling-out force by weakening pressure contact force of a connecting terminal by means of a braking member at the time of insertion/pulling-out of the housings while restoring pressure contact force at the time of fitting. CONSTITUTION:A plate-shaped braking member 5 is slidably provided inside a housing 1 and the free end 2d of a movable contact piece 2b is pressed on its surface to weaken the force of a spring. The number of recessed parts 5a equal to the number of connection terminals 2 are provided on both surfaces of the braking member 5, while an engaging part 5b engaging with the claw part 3b of a housing 3 is provided on the edge of its central part. Before mutual fitting of the fellow housings 1 and 3, the free end 2d of the contact piece 2b is pushed by the braking member 5 to weaken the spring force. After fitting and after finishing the insertion of a connection terminal insertion part 4a into the connection part of a connecting terminal 2, the braking member 5 is inwardly pushed by a release part 3a, the free end 2d is fitted into the recessed part 5a of the braking member 5 and the contact piece 2b restores its spring force to make pressure contact with the insertion part 4a.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a low insertion/removal force connector that allows connection terminals to be inserted and removed with low insertion/removal force.

[Prior Art] For example, when connecting connection terminals, that is, housings, are inserted, the insertion connection terminal fixed to one housing fits into the reception connection terminal attached to the other housing. However, during this fitting, the spring force of the receiving and connecting terminals becomes a large resistance, and an extremely large force is required to connect the housings containing a large number of receiving and connecting terminals. Furthermore, even when separating, a large amount of force is required, although not as much as when inserting.

[Object of the Invention] The object of the present invention is to eliminate the above-mentioned drawbacks, and to reduce the insertion force by weakening the pressure contact force of the receiving connection terminal when inserting and removing the housing, and restoring the pressure contact force after fitting. It is an object of the present invention to provide a low insertion/removal force connector that enables insertion and removal of housings with the insertion and extraction force.

[Summary of the invention] The gist of the present invention for achieving the above object is as follows:
A receiving connection terminal having a movable contact end for press-contacting an insertion part of a mating connection terminal is fixed inside a first housing, and the first housing has a plate body having a locking part and a recessed part on its surface. A braking member having a shape is disposed therein so as to be movable within a certain range in the insertion direction of the insertion connection terminal, and the braking member is free to move the movable contact piece on its surface at a first position in the first housing. The end is pressed to weaken the pressure contact force, and the free end is fitted into the recess at a second position deeper than the first position to release the damping of the pressure contact force, The second housing on the other side is provided with a claw-like release portion, and when the housings are fitted together, the release portion of the second housing is pushed in while being locked to the locking portion of the braking member, whereby the brake is applied. The member is pushed in and the braking member is moved from the first position to the second position to release the pressure on the free end, and when the housings are separated, the release part moves the braking member to the first position. This is a low insertion/removal force connector characterized in that the connector is pulled out to the position shown in FIG.

[Embodiments of the Invention] The present invention will be described in detail based on illustrated embodiments.

FIG. 1 is a perspective view of the first embodiment, and FIG. 2 is a sectional view thereof. The first housing 1 houses a reception connection terminal 2, and the second housing 3 houses an insertion connection terminal 4. In addition, connection terminal 2,
The electric wire connected to 4 is omitted from the illustration. Although the connection terminals 2 and 4 are provided in two stages within the housings 1 and 3, respectively, the number of stages is not particularly limited. The receiving connection terminal 2 is formed by punching and bending a conductive metal plate, and the connection part with the mating insertion connection terminal 4 formed in the same manner is approximately box-shaped.
A movable contact piece 2b extending from the bottom part 2a and folded back into the connecting part, and a ceiling part 2c bent from the side surface of the bottom part 2a are provided. A locking piece 1a having
It is attached by. The free end 2d of the movable contact piece 2b is normally lifted obliquely toward the ceiling 2c of the connection part, receives the insertion part 4a of the insertion connection terminal 4 between it and the ceiling 2c, and receives the spring force of the movable contact piece 2b. The insertion portion 4a is brought into pressure contact with the insertion portion 4a. Inside the first housing 1 is a plate-shaped brake member 5.
is built-in so as to be slidable in the insertion direction of the insertion portion 4a,
The free end 2d of the movable contact piece 2b is pressed on this surface to weaken the spring force. Recesses 5a corresponding to the number of inserted receiving connection terminals 2 are provided on both sides of the braking member 5, and a tongue-shaped release portion 3a provided on the second housing 3 is engaged with the central end of the recesses 5a. It is now possible to stop it. Release part 3
A is provided with a claw portion 3b, and this claw portion 3b can be locked to a locking portion 5b of the brake member 5. Note that locking pawls 5c are provided on both sides of the brake member 5, and the locking pawls 5c are locked on the inner surface of the first housing 1, so that the brake member 5 is not inserted into the first housing 1. Even though it can move back and forth, the presence of this locking pawl 5c prevents it from coming off outward.

Before the housings 1 and 3 are fitted together, as shown in FIG. 2, the free end 2d of the movable contact piece 2b is pressed by the braking member 5 to weaken the spring force, but as shown in FIG. When the housings 1 and 3 are fitted together, the insertion portion 4a of the insertion connection terminal 4
After the receiving connection terminal 2 has been inserted into the connection part, the brake member 5 is pushed inward by the release part 3a, and the free end 2d of the movable contact piece 2b is fitted into the recess 5a of the brake member 5. Then, the free end 2d is opened, and the movable contact piece 2b exerts its spring force to press the insertion part 4a against the ceiling part 2c. In this state, current can flow between the connection terminals 2 and 4.

Note that FIGS. 4 to 6 illustrate the fitting process in more detail, and FIGS. 2 and 3 show cross sections at other positions. As shown in FIG. 4, in the initial state of mating, even if the insertion part 4a of the insertion connection terminal 4 is inserted into the connection part of the receiving connection terminal 2, the movable contact piece 2b will be accepted with almost no resistance. However, when the end of the brake member 5 comes into contact with the claw part 3b of the release part 3a in the state shown in FIG. 5, and the brake member 5 is further pushed in as shown in FIG. 6, the free end 2d of the movable contact piece 2b The brake member 5 is fitted into the recess 5a, and the brake is released to press against the insertion portion 4a. At this time, the lock lever 1b of the first housing 1 is locked to the locking part 3c of the second housing 3 in FIGS. 4, 5, and 6, and the locking lever 1b is completely locked. It's becoming like that.

In this embodiment, not only is there less resistance during insertion, but also less force is required during separation. In other words, after the locking means is removed, the braking member 5 goes through the state shown in FIG. 5, where it is pulled out by the claw part 3b of the release part 3a, and then reaches the state shown in FIG. 4 and then in FIG. Fifth
Although some resistance occurs only in the process of reaching the figure, once the state shown in Figure 5 is reached, the insertion portion 4a of the insertion connection terminal 4 receives the pressure contact force of the movable contact piece 2b within the connection portion of the receiving connection terminal 2. is gone,
The connection terminal 2 receives the insertion part 4a under extremely low resistance.
It can be extracted from.

[Effects of the Invention] As explained above, the low insertion/removal force connector according to the present invention weakens the pressure contact force of the movable contact piece of the receiving connection terminal when inserting and removing the connection terminal, and reduces the pressure contact force after insertion. Since it is designed to restore its original shape, insertion resistance and extraction resistance are extremely small, making it easy to handle.

[Brief explanation of the drawing]

The drawings show an embodiment of the low insertion/removal force connector according to the present invention, in which FIG. 1 is a perspective view, FIG. 2 is a longitudinal sectional view thereof, and FIGS. 3 to 6 are sectional views of the operating state. 1 is a housing, 2 is a receiving connection terminal, 2a is a bottom part, 2b is a movable contact piece, 2c is a ceiling part, 2d is a free end, 3 is a second housing, 3a is a release part,
3b is a claw part, 4 is an insertion connection terminal, 4a is an insertion part,
5 is a braking member, and 5a is a recess.

Claims (1)

[Claims] 1. A receiving connection terminal having a movable contact end for press-contacting the insertion part of a mating connection terminal is fixed inside a first housing, and the first housing has a plate having a locking part and a recess on its surface. A braking member in the form of a body is disposed within the body so as to be movable within a certain range in the insertion direction of the insertion connection terminal, and the braking member engages the movable contact piece with its surface at a first position in the first housing. The free end is pressed to weaken the pressing force, and the free end is fitted into the recess at a second position deeper than the first position to release the damping of the pressing force. , the second housing on the other side is provided with a claw-shaped release portion, and when the housings are fitted together, the release portion of the second housing is pushed forward while being locked to the locking portion of the braking member. The brake member is pushed in and moved from the first position to the second position to release the pressure on the free end, and when the housings are separated, the release part moves the brake member to the second position. 1. A low insertion/removal force connector, characterized in that the connector is pulled out to position 1 and the free end is pressed.