JPH0741103Y2 - Connector with cam bolt for mating operation - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is mainly used for connecting electric wiring of an automobile, and a pair of housings facing each other is fitted and removed by operating a cam member. It relates to an electrical connector.

[Conventional technology]

In FIG. 7, a is a female housing, b is a male housing, and c is an operation cam member. Terminal fittings are housed in the female and male housings a and b that form a pair of connectors.

The sleeve portion a ₁ of the female housing a is formed with a slide guide elongated hole a _{2 of} a fitting operation cam member c which is fitted over the sleeve portion a ₁ to form a bifurcated frame-shaped fitting operation cam. The inner surface of the member c is provided with a drive projection c ₁ that engages with the slide guide elongated hole a ₂ and projects into the sleeve body a ₁ .

Then, on the opposite outer surfaces of the male housing b, a tapered driven groove b ₂ is formed following the introduction groove b ₁ into which the drive protrusion c ₁ enters.

In the above structure, the male groove b is opposed to the female housing a with the fitting operation cam member c positioned on one side of the female housing a, so that the introduction groove b ₁ is driven to project.
It is opposed to c ₁ (FIG. 8 (a)), and in this state, the male housing b is pushed in to position the drive projection c ₁ from the introduction groove b ₁ to the inlet of the tapered driven groove b ₂ (FIG. 8 ( b)), in this state, by moving the fitting operation cam member c to the right side in the drawing, the driving projection c ₁ draws the female housing into the inside through the tapered driven groove b ₂ , and both terminal fittings are connected. Connect them (Fig. 8 (c)).

[Problems to be solved by the device]

In the above-mentioned prior art, the operating cam member c projects and moves in the lateral direction intersecting the fitting direction of the female and male housings a and b, so that a mounting space for that is required, and one housing is a panel. It may be difficult or impossible in space to move the operation cam member c in the lateral direction because the operation cam member is fixed.

The present invention has been made in view of the above-mentioned points, and the problem of the above space can be solved by providing the operation cam members in the fitting direction of the pair of housings and operating them.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, in the present invention, a cam rod and an operating handle having a spiral cam groove formed with a housing chamber penetrating in the fitting direction in one of a pair of connectors to be fitted to each other. A cam bolt having a rotatably supported position at a fixed position in the accommodating chamber, the other connector is provided with an engaging portion facing the cam bolt, and the engaging portion has a receiving hole for the cam bolt and the spiral cam groove. We adopted a configuration that provides a cam protrusion that engages with.

〔Example〕

In FIGS. 1 to 4, A is a synthetic resin female connector, and B is a synthetic resin male connector, to which terminal fittings are attached. Four electrical connection fitting chamber A ₂ on both sides of the center of the detachable operating fitting chamber A ₁ by the partition wall 1 is arranged in the female connector A, fitting the center of the detachable operating the male connector B Four fitting parts B ₂ for electrical connection are arranged in parallel on both sides of the part B ₁ . Detachable operating engagements B ₁ represents fitted in the detachable operating fitting chamber A _1, each electrical connection fitting portion B ₂ are fitted to each electrical connecting fitting chamber A in ₂ facing Connect the built-in terminal fittings to each other. A housing chamber 3 for the cam bolt 2 is formed in the fitting / removal fitting portion B ₁ so as to penetrate therethrough in the fitting direction.

The cam bolt 2 includes a cam rod 2c having a pointed head 2a and three spiral cam grooves 2b formed on the peripheral surface, an inner groove 2d for an inner stopper, an outer groove 2e for an outer stopper, and an operating handle. 2f
Are sequentially provided in the axial direction, and when inserted into the accommodation chamber 3, a U-shaped stopper 5 is inserted into a support hole 4 formed from the outer wall 3 of the male connector B to the accommodation chamber 3 to form an annular groove 2d. The cam bolt 2 is rotatably provided at a fixed position of the male connector housing B by locking and engaging the split ring-shaped stopper 6 in the annular groove 2e on the outside of the male connector B.

An engaging portion 7 for the cam bolt 2 is integrally provided in the fitting chamber A ₁ for attachment / detachment of the female connector housing A, and a receiving hole 7a for the cam rod portion 2c is formed in the engaging portion 7 and a receiving hole 7a is formed. Three cam protrusions 7b that engage with the spiral cam groove 2b are provided in the hole 7a so as to protrude inward.

In the above configuration, the cam bolt 2 is moved in one direction by the operating handle 2f in a state where the female and male connector housings A and B are opposed to each other and the pointed head 2a of the cam bolt 2 faces the receiving hole 7a of the engaging fitting 7. When rotated by 90 °, both connector housings A and B are driven in the fitting direction by the engagement of the cam protrusion 7b and the cam groove 2b, and complete connection is achieved in one operation. When the fitting between the female and male connector housings A and B is released, the cam bolt 2 is rotated in the opposite direction.

In the embodiment shown in FIG. 6, the operation handle 2f 'is detachably attached to the cam bolt 2'and can be removed after the fitting is completed.

[Effect of device]

As described above, the present invention provides a cam bolt having a cam rod having a spiral cam groove formed in a housing chamber penetrating in one of a pair of connectors to be fitted to each other in the fitting direction and an operating handle. The housing is rotatably supported at a fixed position, the other connector is provided with an engaging portion facing the cam bolt, and the engaging portion engages with the receiving hole of the cam bolt and the spiral cam groove. Since the cam projection is provided, it has a feature that the space required for mounting the electric connector for fitting and disconnecting the pair of connector housings with the cam member can be reduced.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention, FIG. 2 is a front view of a male connector, FIG. 3 is a front view of a female connector, and FIG. 4 is a cross section of a female and a male connector in a fitted state. Fig. 5 is a plan view of the cam bolt, Fig. 6 is a perspective view showing another embodiment of the cam bolt, Fig. 7 is an exploded perspective view of a conventional example, and Figs. 8 (a) (b) (c) are It is a partially broken plan view showing the same joining process. A, B ... A pair of connectors, 2, 2 '... Cam bolt, 2b ... Spiral cam groove, 2c ... Cam rod, 2f, 2f' ... Operating handle, 7
... Engaging portion, 7a ... Receiving hole, 7b ... Cam projection.

Claims (2)

[Scope of utility model registration request] 1. A cam bolt having a cam rod portion having a spiral cam groove formed therein and a cam bolt having an operating handle, the accommodating chamber being formed in one of a pair of connectors to be fitted with each other and penetrating in the fitting direction. Rotatably supported at a fixed position of
A fitting operation characterized in that the other connector is provided with an engaging portion facing the cam bolt, and the engaging portion is provided with a cam projection that engages with the receiving hole of the cam bolt and the spiral cam groove. Connector with cam bolt. 2. A connector with a cam bolt for fitting operation according to claim 1, wherein the operation handle of the cam bolt is configured to be removable.