JPH088534Y2 - connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial Application Field" The present invention relates to an improvement of a connector having a structure in which an electric connector inserted in a terminal accommodating chamber is locked by a stopper piece that is separately inserted.

"Prior Art" FIG. 7 is a vertical cross-sectional view showing a state in which an electric connector is inserted into a terminal accommodating chamber of a conventional housing body of this type. In order to prevent the electric connector from being pulled out backward, A locking part is provided at the rear end of the electrical contact part, and after inserting the electrical connector into the terminal accommodating chamber,
The spacer is inserted from the rear of the terminal accommodating chamber, and after contacting the locking portion, the spacer is fixed to prevent the electric connector from being pulled out toward the rear.

"Problems to be solved by the invention" Looking at the above-mentioned conventional example, a connector in which a spacer is inserted from the rear of the terminal accommodating chamber and the locking portion is brought into contact with the electrical connector has a holding force in the terminal insertion direction. Although it is kept, there is a drawback that the terminal is loosened up and down, and the terminal cannot be accurately stored in the terminal storage chamber of the connector. The object of the present invention is to solve the above conventional problems.

[Means for Solving Problems] In order to achieve the above object, according to the present invention, a cylindrical terminal accommodating chamber having a terminal accommodating port at a rear part is provided at a front part which abuts against and supports a terminal tip. It has a wall material, and the lower wall surface of the terminal accommodating chamber is provided with a base part having an inclined surface that is close to the upper wall surface in the direction in which the terminal is inserted when the terminal is accommodated. After inserting the terminal into the chamber, it is formed into a thin plate shape that can be inserted from the rear opening between the terminal and the lower wall surface. While holding the terminal, the tip of the terminal abuts the locking portion of the terminal to press the terminal toward the upper wall surface and the front wall material, and the retaining mechanism prevents the wall material in the terminal storage chamber. It is configured by including a stopper piece that engages with.

[Operation] According to the present invention having the above configuration, when the stopper piece is inserted from the rear opening after the terminal is inserted into the terminal accommodating chamber, the tip of the stopper piece formed in a thin plate shape is the inclined surface of the base part. While being bent toward the terminal side along with, it abuts the terminal in an oblique direction. At this time, since the plate-shaped stopper piece is bent by the inclined surface, a gap is created between the inclined surface and the stopper piece, and there is a margin for further bending by the gap. Therefore, the terminal is pressed down elastically. After contact, the stopper piece engages with the terminal storage chamber by the retaining mechanism,
Hold the terminal pressed down diagonally.
Therefore, the terminal is held in a state of being pressed in both directions of the front wall material and the upper wall surface of the terminal accommodating chamber. Of course, the upper wall surface and the lower wall surface are relative, and the same applies to other wall surfaces facing each other in the terminal accommodating chamber.

"Example" A detailed description will be given below based on an example.

Referring to FIGS. 1 to 3 showing the embodiment, the connector of the present invention has a terminal accommodating chamber (2) having a three-stage structure including an upper stage, a middle stage and a lower stage.

A base part (1) is provided on a lower wall surface (6) of the terminal accommodating chamber (2), and a front opening end of the terminal accommodating chamber (2) is provided from above the base part (1). A flexible arm (4) is provided, the free end of which extends towards (3). The front wall material (19) is formed by the wall material around the front opening (3).

Near the free end of the flexible arm (4), there is a protrusion (9) projecting toward the opposing upper wall surface (5), and when the terminal (14) is inserted into the terminal accommodating chamber (2), The locking hole (16) of the terminal (14) engages with the protrusion (9) of the flexible arm (4).

From the base part (1) to the rear opening end (10) direction, there is an opposing upper wall surface (5) and an inclined surface (7) that gradually widens a space. Inserted along the inclined surface (7),
One end of the free end (8) has a stopper piece (11) pressed and supported by the terminal locking portion (17). The other end of the stopper piece (11) is provided with a locking projection (15) at the rear opening end (10). At the rear opening end (10) of the middle terminal accommodating chamber (2), windows (18A, 18B) are formed on the left and right peripheral walls, that is, the side walls of the connector (13).
Are drilled in pairs. The locking protrusions (15) of the stopper pieces (11) are provided on the side wall windows (18A, 18B) of the connector (13).
It is locked with. In addition, these locking protrusions (1
5) and windows (18A, 18B) form a retaining mechanism.

When the stopper piece (11) is inserted from below the terminal accommodating chamber (2), the inclined surface (7) bends the free end (8) of the stopper piece (11), and the inclined surface (7) and the stopper piece (11). ) And a gap (12) is created. By creating such a gap (12), the stopper piece (1
1) can be bent in the direction of the inclined surface, and the terminal locking portion (17) can be elastically pressed by the tip of the free end (8).

Here, the terminal (14) is the terminal accommodation room (2)
Since it is pressed toward the corner between the upper wall surface (5) and the front wall material (19), it is held in a position close to the upper wall surface (5) and close to the front wall material (19).

Fig. 2 shows the process of inserting the stopper piece (11). Fig. 2 (A) shows the stopper piece (11) being temporarily inserted and the terminal (14) being inserted in Fig. 2 (B). And finally, in FIG. 2 (C), the stopper piece (11) is completely fitted.

In FIG. 4, the angle of the inclined surface (7) is further changed from the base (1) to the rear opening end (10). Since the gap (12) is created, the stopper piece (11)
When the free end (8) of the flexure bends in the direction of the inclined surface (7), a springback force acts and acts on the terminal (14). The springback force is applied at a predetermined angle with respect to the axial direction of the terminal.

FIG. 5 shows that the inclined surface (7) is curved from the base (1) toward the rear opening end (10). A gap (12) is formed as in FIG. 4, and the free end (8) of the stopper piece (11) bends in the direction of the inclined surface (7).

FIG. 6 shows the tip of the free end (8) of the stopper piece (11), and the tip is notched and divided into a vertical surface portion and a horizontal surface portion to abut on the terminal locking portion (17). Is shown.

[Advantage of Invention] According to the present invention having the above configuration, the terminal is pressed obliquely toward the corners in the cylindrical terminal accommodating chamber, so that it can be pressed along each of the two wall members. Therefore, it is stably held at a predetermined position where it comes into contact with the wall material, and there is no backlash. Also, when inserting the other terminal, a strong force is applied to push the terminal in the terminal accommodation chamber to the rear side, but since the stopper piece elastically presses the terminal, part of this force is buffered. It is possible,
It is possible to prevent getting out.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a front view of a connector according to an embodiment of the present invention. 2 (A) (B) (C): Shows the order of mounting the stopper pieces on the connector. FIG. 3: shows a plan view of the connector. 4 and 5: Shows an embodiment of the base part of the connector. FIG. 6 shows an embodiment of a stopper piece. FIG. 7: A vertical cross-sectional view of a conventional connector when an electric connector is inserted. (1): Base part, (2): Terminal accommodation chamber (3): Front opening end, (4): Flexible arm (5): Upper wall surface, (6): Lower wall surface (7): Inclined Surface, (8): Free end (9): Projection, (10): Rear opening end (11): Stopper piece, (12): Gap (13): Connector, (14): Terminal (15): Engagement Stop protrusion, (16): Locking hole (17): Terminal locking part, (18A): Window (18B): Window

Claims (3)

[Scope of utility model registration request] 1. A cylindrical terminal accommodating chamber having a terminal accommodating port at a rear portion thereof has a front wall member for abutting and supporting the tip end of the terminal at a rear portion, and a lower wall surface of the terminal accommodating chamber is The terminal is provided with a base part that forms an inclined surface that is close to the upper wall surface in the direction in which the terminal is inserted at the time of accommodation, and after inserting the terminal into the terminal accommodation chamber, between the terminal and the lower wall surface. It is formed in a thin plate shape that can be inserted from the rear opening, and when it is inserted, it contacts the above-mentioned inclined surface and bends to hold a gap between the inclined surface and the end of the contacting part of the terminal. A connector comprising a stopper piece for pressing the terminal toward the upper wall surface and the front wall material and engaging with a wall material in the terminal storage chamber by a retaining mechanism. 2. The connector according to claim 1, wherein the inclined surface of the base portion is an inclination whose angle is further changed on the way to the rear opening end. 3. The connector according to claim 1, wherein the inclined surface of the base is curved toward the rear opening end.