JP2510546Y2 - Connector with terminal locking device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a connector used for connecting a wire harness for an automobile, etc., which is provided with a terminal locking member for securing locking of a terminal fitting to be housed.

[0002]

2. Description of the Related Art In FIGS. 4 to 8, A is a connector housing and B is a terminal locking member, both of which are integrally formed of a synthetic resin material. Connector housing A is resides a gap between the case A ₁ at its outer peripheral portion the terminal receiving block A ₂ consisting of a plurality of terminal accommodating chambers 1 in the second half portion of the female case A _1, and the case A ₁ opening It is provided so as to be partially exposed from the portion 3. Case A
_A temporary locking hole 4 and a main locking hole 5 are formed in the rear portion of ₁ .

In the terminal accommodating block A ₂ , a plurality of terminal accommodating chambers 1 are arranged in parallel in upper and lower two stages, and each terminal accommodating chamber 1 is provided with a cantilevered flexible locking piece 6. An intermediate wall 7 of the case A ₁ is located in front of the locking end 6a of the flexible locking piece 6 with a space exposed to the outside as a stopper.

The terminal locking device B includes a pair of terminal pressing portions 10 at the rear ends of the upper and lower walls 8a of the rectangular main frame portion 8 via a hinge 9.
10 is erected up and down, and is in an upright state when not restrained due to the biasing tendency of the hinge 9 (FIGS. 4, 5, and 6).
), The terminal pressing portion 10 has a stopper portion 10a that engages with the rear end C ₁ of the terminal fitting C in the fallen state.

A cantilevered flexible locking arm 11 is provided in a recess 8a 'formed in one wall 8a of the main frame portion 8 of the terminal locking device B, and the surface of the flexible locking arm 11 is provided. A temporary locking projection 12 is provided on the front surface of the terminal pressing portion 10, and a final locking projection 13 is provided on the surface of the terminal pressing portion 10. When in use, the terminal locking device B is attached to the connector housing A with the provisional locking projection 12
Is in a temporarily coupled state in which it is engaged with the temporary locking hole 4, and in this state, the terminal metal fitting C is inserted into each terminal accommodating chamber 1 from the rear of the connector housing A, and the protrusion C ₂ formed in the middle is intermediately formed. It is positioned and fixed between the wall 7 and the locking end 6a of the flexible locking piece 6 (FIG. 6). In this state, since the terminal pressing portion 10 is upright, the terminal locking tool B will not be inadvertently pushed in and will not shift to the main connection state.

In order to shift to the fully coupled state, the terminal pressing portion 10 is laid down against the urging force of the hinge 9 (FIG. 7), and then pushed in as it is so that the final locking projection 13 is finally locked in the case A _1. The main frame portion 8 closes the opening portion 3 of the case A _{1 in} this state (FIG. 8).

By the way, in the above-mentioned fully connected state, since the hinge 9 is deformed, the terminal pressing portion 10 is inclined due to the hinge 9 side being lifted through the fulcrum X, and therefore the terminal metal fitting C of the terminal pressing portion 10 is formed. The locking action on the rear end C ₁ becomes insufficient, and the engagement of the main locking projection 13 in the terminal pressing portion 10 with the main locking hole 5 also becomes insufficient.

[0008]

In view of the above points, the present invention is designed so that the terminal pressing portion 10 maintains a correct posture and fulfills the terminal locking action in the fully connected state.

[0009]

In order to achieve the above object, in the present invention, a connector housing and a terminal movably combined with a rear portion of the connector housing in two stages of a temporary connection state and a final connection state. The terminal retainer is provided with a hinge to the rear portion of the terminal retainer so that the terminal retainer can be tilted up and down, and the terminal retainer has a main retaining protrusion and a posture stabilizing protrusion that stands up behind it. A configuration is adopted in which the attitude stabilizing projections contact the inner surface of the connector housing to maintain the locking attitude of the terminal pressing portion when the terminal locking tool is fully connected.

[0010]

In this connection state, the posture stabilizing projection provided at the free end of the terminal pressing portion separates and supports the free end from the inner surface of the connector housing, so that lifting of the hinge portion is prevented and the terminal is prevented. The holding posture of the holding section is stable.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, A is a synthetic resin connector housing, and B is a synthetic resin terminal locking tool.
Most of the parts have the same structure as the conventional example, and the same parts are designated by the same reference numerals.

In the terminal pressing portion 10 connected by the hinge 9 in the terminal locking device B, the main locking projection 1 that engages with the main locking hole 5 provided in the case A ₁ of the connector housing A.
3 is provided, and a posture stabilizing projection 14 lower than the main locking projection 13 that rises in a taper shape is formed on the free end side behind the main locking projection 13.

Therefore, in the fully connected state shown in FIG. 3, the posture stabilizing projection 14 has a fulcrum Y higher than the conventional fulcrum X.
Since it comes into contact with the case A ₁ by holding it, it acts so as to prevent the hinge 9 from being lifted up, and by stabilizing the attitude of the terminal pressing portion 10 to a normal state, the main locking projection 13 is securely engaged with the main locking hole 5. At the same time, the terminal engaging portion 10 is securely engaged with the rear end C ₁ of the terminal fitting C.

[0014]

As described above, the present invention comprises a connector housing and a terminal locking member which is movably combined with a rear portion of the connector housing in two stages of a temporary connection state and a main connection state. The terminal retainer is provided to the rear part of the retainer by hinge coupling so that the terminal retainer can be raised and lowered, and the terminal retainer is provided with a main retaining protrusion and a posture stabilizing protrusion that stands up behind the main retainer. In this state, since the posture stabilizing projection abuts the inner surface of the connector housing to hold the locking posture of the terminal retainer, the terminal retainer hingedly coupled to the terminal retainer is retained by the terminal retainer. The action can be stabilized.

[Brief description of drawings]

FIG. 1 is a perspective view showing a temporarily connected state of a connector housing and a terminal locking device according to an embodiment of the present invention.

FIG. 2 is a sectional view of the above-mentioned temporary connection state.

FIG. 3 is a cross-sectional view of the same bonded state as above.

FIG. 4 is a perspective view of a conventional example in which a connector housing and a terminal locking tool are separated.

FIG. 5 is a perspective view of the above-mentioned temporary connection state.

FIG. 6 is a cross-sectional view of the above-mentioned temporary connection state.

FIG. 7 is a cross-sectional view immediately before shifting to the main combined state in the above.

FIG. 8 is a cross-sectional view of the above-mentioned main combined state.

[Explanation of symbols]

 A Connector Housing B Terminal Locking Tool 9 Hinge 10 Terminal Pressing Section 13 Full Locking Projection 14 Posture Stabilizing Projection

Claims (1)

(57) [Scope of utility model registration request] 1. A connector housing and a terminal locking member that is movably combined with a rear portion of the connector housing in two stages of a temporary coupling state and a main coupling state. The terminal pressing portion is provided to be tiltable by a hinge connection, and the terminal pressing portion is provided with a main locking projection and a posture stabilizing projection that stands up behind the terminal locking portion. A connector with a terminal locking member, characterized in that the terminal pressing member is held in the locking posture by contacting the inner surface of the connector housing.