JPH024456Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lock type drain connector.

Conventionally, for example, a record player and an amplifier,
In addition, when connecting the video camera and the power source using cords, a de-in connector is used as the connection means. This connector consists of a female part and a male part that is inserted into the female part, and is electrically connected by pin joining. In either case, a lock-type drain connector is used as the connector to prevent disconnection. The locking means of this type of connector is to provide a locking claw made of a metal piece that is an independent member with spring properties on one female part, and hold this with a retaining piece protruding from the cover, while a hole is provided in the other male part. It was configured to be locked in place. However, since the locking pawl is an independent member, the manufacturing and assembling process is time-consuming, the number of parts increases, and the locking force of the locking piece decreases over time.

The present invention eliminates the above-mentioned drawbacks, and one embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, the connector according to the present invention consists of a male connector part 1 and a female connector part 2, the main bodies 1a and 2a of which are both made of synthetic resin such as vinyl chloride, and the covering parts of the electric wires 3 and 4. It is integrated.

First, the specific structure of the male connector section 1 will be explained based on FIGS. 1 and 2. A hole 5 with an opening at the tip is provided in the axial center of the tip of the male part main body 1a.
A cylindrical body 6 is arranged concentrically in this hole 5,
The rear end is buried in the male main body 1a, and the tip protrudes toward the front of the main body. Also, located within the cylinder 6 are a plurality of terminal pins 7 whose rear ends are attached to the male body 1a. Each terminal pin is connected at its rear end to a core wire (not shown) of the electric wire 3, and the connecting portion is embedded and fixed within the male body 1a. Further, the tip of the male part body 1a has a plurality of engagement holes 8, which are engagement parts.
is formed, and the engagement hole communicates with the hole 5. Note that the engaging portions do not necessarily have to be holes, but may be grooves formed in the inner peripheral portion of the hole portion 5, and the number is not limited to a plurality.

Next, the configuration of the female connector section 2 will be explained based on FIGS. 1 and 3. The tip of the female body 2a can be fitted into the hole 5 of the male body 1a. A hole 9 is provided in the axial center of the female part main body 2a, and a connecting portion 10 shorter than the inner diameter of this hole is located concentrically within this hole, and this connecting portion is located at the rear end of the main body 2a. It is integrated with. This connecting portion 10 can be freely fitted into the cylindrical body 6 of the male portion main body 1a. The connecting portion 10 is provided with connection holes 11 into which the terminal pins 7 can be freely inserted and removed. A terminal piece (not shown) to be connected to the terminal pin 7 is housed in this connection hole 11, and the electric wire 4 at the rear end of this terminal piece is
The connection portion with the core wire is embedded and fixed within the main body 2a. Further, locking claws 12 are provided on both upper and lower sides of the outer periphery of the tip of the female part main body 2a, integrally with this outer periphery.
A locking pawl operating portion 13 is provided adjacently, and the locking pawl is located at the tip of the outer peripheral portion. Each locking claw 12
and the operating part 13 form one arm part, which can be bent inward of the main body hole part 9. The locking pawl 12 can be freely engaged with and detached from the locking hole 8 . 13a is the operation section 13
It is a protrusion provided on the top surface of the . A groove 13b is cut into the base of the locking pawl operating portion 13 from above in the width direction. Note that the number of the locking claws 12 and the operating portions 13 does not necessarily have to be plural, and the positions where they are arranged are not limited to the top and bottom of the main body 2a.

Next, the connection between the connector male part 1 and the female part 2 will be explained.

When the female connector part 2 is moved from the position indicated by the chain line in FIG.
0 is inserted into the cylindrical body 6 of the male part, and at the same time, the terminal pin 7 is inserted into the connection hole 11. When the tip of the female part main body 2a is inserted into the hole 5 of the male part 1, the locking claw 12 moves while sliding on the inner peripheral surface of this hole, and eventually the locking claw moves into the engagement hole. 8 (Fig. 1). As a result, the male connector part 1 and the female part 2 are connected and cannot be easily separated.

In addition, in order to release this connection, it is sufficient to pull out the connector female part 2 in the axial direction while pressing the operating part 13 inward.

As explained above, according to the present invention, the locking claw and the engaging part are integrally provided on the male or female part of the connector, so the number of parts can be reduced, and manufacturing and assembly of the connector can be facilitated. Become. moreover,
The locking force of the locking pawl also does not decrease over time.

In addition, the male part of the connector is provided with a cylindrical body, and the female part is provided with a connecting part that can be freely fitted into the cylindrical body, so it is possible to prevent looseness in the connection between the male part and the female part, and the cylindrical body is attached to the connecting part. Since it serves as a guide during insertion, the female part and male part can be joined smoothly.

A groove is provided in the width direction on the base of the locking claw operating section, so even if the male part and female part are repeatedly attached and detached during inspection or use, even if the locking claw operating part is thick. This prevents cracks from forming at its base and provides springiness, making it easier to attach and detach.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a partially cutaway front view, FIG. 2 is a sectional view taken along the line of FIG. 1, and FIG. 3 is a right side view of the female connector portion. 1... Connector male part, 1a... Male part main body,
2...Connector female part, 2a...Female part main body,
3, 4... Electric wire, 5... Hole, 7... Terminal pin,
8...Engagement hole, 9...Hole part, 10...Connection part, 1
1... Connection hole, 12... Locking claw, 13... Locking claw operating section.

Claims (1)

[Scope of Claim for Utility Model Registration] Each body has a main body made of synthetic resin, and the main bodies are composed of a male connector part and a female part that can be fitted into each other, and the male connector part is located at the axial center of the main body. A cylindrical body is provided in the cylindrical body, a plurality of terminal pins are provided in the cylindrical body, and the connector female part is provided with a connecting part that can freely fit into the cylindrical body at the axial center of the main body, and the terminal pins are inserted into this connecting part. A removable connection hole is provided, and a locking claw and a locking claw operating part are provided in an arm shape adjacent to the outer periphery of either the male connector part or the female connector part integrally therewith, and the other A locking type, characterized in that the locking pawl is provided with an engaging portion that can be elastically engaged with the locking pawl, and a groove is provided on the base of the locking pawl operating portion in the width direction of the locking pawl operating portion. Dane Connector.