JPS62188188A - Bolt-fitting mechanism of screw type connector housing - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a bolt attachment mechanism for a screw-clamped connector housing.

Conventional technology Wire harnesses used in automobile electrical circuits connect their terminals to various electrical components by mating female and male connectors. There are a large number of connectors in areas where many types of connectors are concentrated, and connecting them takes time and effort, and also occupies a considerable amount of space. Therefore, high-density multi-pole connectors have come into use that can aggregate a plurality of connectors and make many electrical connections with one connector.

As one of such connectors, in Utility Model Application No. 60-876 related to the applicant's earlier application, as shown in FIGS. 3 and 4, one connector housing a is provided with a bolt b, and the other is provided with a bolt b. A nut d is installed in the connector housing C of the connector housing C, and when the two are mated, the housing a is pressed to the specified position of the housing C, the pole 1-b is rotated using a jig, and the connector is mated by connecting the bolts b and d. A screw-clamp type connector housing has been proposed that terminates the process.

Problems to be Solved by the Invention Although the above-mentioned screw-tight connector housing has the advantage of reliably attaching the connector to the vehicle body, the bolt b is integrally attached to the specified position of the housing, and excessive axial force is required. To resist the force, the retaining part e around the bolt
must be formed thick, and there is a risk that dimensional defects in the connector pitch may occur due to sink marks or deformation during molding. In addition, the bolt head is placed at a high position protruding from the end face of the housing to prevent wires from getting caught when rotating and tightening with a jig. There was a possibility that it would be difficult to insert the terminal into the terminal accommodating chamber near the protrusion.

The object of the present invention is to provide a bolt mounting mechanism that not only securely mounts a connector to a vehicle body but also allows easy insertion of multi-pole terminals without causing dimensional defects in the connector housing. There is something to do.

Voice your concerns! In order to achieve the above object, in the present invention, in a connector housing in which one connector housing is provided with a bolt and the other connector housing is provided with a nut, one connector housing is connected to the housing body with the bolt. The housing body is provided with a housing chamber for the bolt holding part, and a stopper is fitted to the bolt inserted into the bolt holding part to prevent it from coming off. A locking means is provided between the two.

Embodiment In FIG. 1, A indicates a bolt-mounting side connector housing in a screw-tight connector housing, which is divided into a housing body 1 and a bolt holding portion 9.

A plurality of terminal accommodating chambers 2 are provided inside the housing body 1, and an accommodating chamber 3 for a bolt holding part 9 is provided in the center, and a guide frame 4 for a mating connector housing is formed protruding from the front of the accommodating chamber 3. ing. A partition wall 5 between the storage chamber 3 and the guide frame 4 is provided with a bolt insertion hole 6 and a positioning hole 7.

The bolt holding part 9 is a hollow prismatic body with a shaft hole 10 in the center.
Bolt body 11a and threaded portion 11 of bolt 11 inserted into
A stopper 12 is fitted between the bolt 11 and the bolt 11 to prevent the bolt 11 from coming off and to restrict movement in the axial direction.

Further, the bolt holding part 9 has the above-mentioned accommodation chamber 3 on its outer peripheral wall.
A flexible locking arm 13 (see FIG. 2) that engages with a locking hole 8 provided in the inner wall of the core portion 9 is provided, and a positioning pin 14 is provided protruding from the front of the core portion 9 in parallel with the bolt threaded portion 11b. ing.

According to the above configuration, as shown in FIG.
After inserting the electric wires 15 (not shown), if the bolt holding part 9 is attached to the centrally opened storage chamber 3, the locking mechanism between the locking hole 8 and the locking arm 13 will
The bolt holding part 9 is locked with the housing body 1. When attaching the bolt holding part 9, the positioning pin 14 is inserted into the accommodation chamber 3.
Since it is guided by the positioning hole 7, it is possible to prevent erroneous mounting and forced fitting, and ensure secure locking.

Effects of the Invention As is clear from the above, in the bolt attachment mechanism of the present invention, since the housing body and the bolt holding part are formed separately, dimensional defects due to conventional thick-walled molding can be avoided (and precise molding is possible). This made the terminal insertion work extremely easy, and since there were no protrusions from the housing end face and the housing was flat, it became possible to automatically insert the terminals using a machine.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention in a separated state, FIG. 2 is a perspective view showing an assembly method of the same, and FIGS. 3 and 4 are explanatory views of a conventional example. A... Connector housing, 1... Housing body, 3... Accommodation chamber, End... Locking hole, 9... Bolt holding part, 11... Bolt, 12... Stopper. Figure 2

Claims (1)

[Claims] In a connector housing in which one connector housing is provided with a bolt and the other connector housing is provided with a nut, one connector housing is formed by being divided into a housing body and a bolt holding part, and the housing body has a housing for the bolt holding part. A screw-tight connector housing characterized in that a chamber is provided, a stopper is fitted to the bolt inserted into the bolt holding part to prevent it from coming off, and a locking means is provided between the accommodation chamber and the bolt holding part. Bolt mounting mechanism.