JPH0555988B2 - - Google Patents

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.

Prior Art Wire harnesses used in automobile electrical circuits connect their terminals to various electrical components by mating female and male connectors, but they are used in many switches and instruments, such as instrument panels. 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 allow multiple connectors to be aggregated and a large number of electrical connections to be made with one connector.

As one of such connectors, 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, as shown in FIGS. A type in which a nut d is provided on the connector housing c, and when the two are mated, the housing a is pressed to a specified position on the housing c, the bolt b is rotated by a jig, and the connector fitting is completed by joining the bolt nuts b and d. A screw-on connector housing has been proposed.

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 the excessive force applied in the axial direction is In order to resist the force, the holding part e around the bolt had to be made thick, and there was a risk that dimensional defects in the connector pitch would easily occur due to sink marks or deformation during molding. In addition, the bolt head protrudes from the end face of the housing and is placed at a high position 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.

It is an object of the present invention to provide a bolt mounting mechanism that does not cause dimensional defects in the connector housing as described above, and allows easy insertion of multi-pole terminals in addition to securely mounting the connector on the vehicle body. be.

Means for Solving the Problems In order to achieve the above object, in the present invention, one connector housing is provided with a bolt,
In the connector housing in which the other connector housing is provided with a nut, the one connector housing is divided into a housing body provided with a plurality of terminal accommodating chambers and a bolt holding part that protrudes rearward from the housing body and receives bolt fastening force. The housing body is provided with a housing chamber for the bolt holding part, 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 housing chamber and the bolt holding part. It is characterized by having been provided.

Embodiment In FIG. 1, A indicates a connector housing on the bolt attachment side of a screw-tight connector housing, which is formed by being divided into a housing body 1 and a bolt holding portion 9.

A plurality of terminal accommodating chambers 2 are provided inside the bousing main 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, and the bolt body 11 of the bolt 11 inserted into the central shaft hole 10
A stopper 12 is fitted between the bolt 11a and the threaded portion 11b to prevent the bolt 11 from coming off and to restrict movement in the axial direction. The bolt holding portion 9 also has a flexible locking arm 13 on its outer peripheral wall that engages with a locking hole 8 provided in the inner wall of the storage chamber 3.
(see FIG. 2), and a positioning pin 14 is provided in front of the portion 9 to protrude in parallel with the bolt threaded portion 11b.

According to the above configuration, as shown in FIG. 2, after the terminals (not shown) to which the electric wires 15 are connected are inserted into all the terminal accommodating chambers 2 of the housing body 1, these electric wires 15 are sorted and Containment chamber 3 opened to
When the bolt holding part 9 is attached to the housing body 1, the bolt holding part 9 is locked to the housing body 1 by the locking means of the locking hole 8 and the locking arm 13 in a state in which the bolt holding part 9 protrudes rearward. Since the positioning pin 14 is guided by the positioning hole 7 of the storage chamber 3 when the bolt holding part 9 is installed, incorrect installation and forced fitting can be prevented and secure locking can be achieved.

Effects of the Invention As described above, the present invention provides a connector housing in which one connector housing is provided with a bolt and the other connector housing is provided with a nut, in which the one connector housing is connected to a housing body provided with a plurality of terminal accommodating chambers. The housing body is divided into a bolt holding part that protrudes rearward from the housing body and receives the bolt fastening force, and the housing body is provided with a housing chamber for the bolt holding part, and a bolt inserted into the bolt holding part is provided with a housing to prevent it from slipping out. Since the housing body and the thick bolt holding part are formed separately, the housing body and the thick bolt holding part are formed separately, which eliminates the need for conventional thick molding. It is possible to obtain a precision molded product by reducing the possibility of dimensional defective products due to dimensional defects due to dimensional defects, and the terminal insertion work into the housing body, which has a relatively flat rear surface before the bolt holder protruding from the rear of the housing body is assembled, is possible. This has the effect of making it extremely easy to insert the terminal automatically by a machine since there are no protrusions.

[Brief explanation of the drawing]

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, 8... Locking hole, 9... Bolt holding portion, 11... Bolt, 12... Stopper.

Claims (1)

[Claims] 1 Install a bolt on one connector housing,
In the connector housing in which the other connector housing is provided with a nut, the one connector housing is divided into a housing body provided with a plurality of terminal accommodating chambers and a bolt holding part that protrudes rearward from the housing body and receives bolt fastening force. The housing body is provided with a housing chamber for the bolt holding part, 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 housing chamber and the bolt holding part. A bolt attachment mechanism for a screw-tight connector housing.