JPH02309576A - Locking type connector - Google Patents

Abstract

PURPOSE:To confirm the unlocked condition securely by lifting up a knob to a confirmable height in a regular gearing condition by rotating a hanging part when a plug is inserted, and gearing the knob to the rear end of the plug to lock. CONSTITUTION:By hitting the tip 20a of the recess 20 of a plug 9 to the hanger 11 of a socket 8 to rotate a lever 10 90 deg., a knob 14 is held in the erecting condition in the condition the side surface 11a is contacted to the recess 20. Furthermore, the knob 12 is rotated by hand to the near side against the elasticity of a lever 10, and a gearing window 14a is hooked with a pawl 21a to lock. In such a locked condition, the height of the lever 10 is made low along the upper surface 8a of a socket 8 or the upper surface 9a of the plug 9 same as the separated condition, and when the locking is released by operating the knob 14, the knob 14 is restored to the erecting condition by the elasticity of the lever 10. In such a way, since the knob 14 is lifted up to the visually confirmable height when the plug 9 is inserted, the locked and unlocked conditions can be confirmed easily, and the locking can be carried out securely by this confirmation.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a lock type connector in which a plug is inserted into a socket and is locked in the properly inserted state, and is provided with a lock or unlock knob. .

(Prior Art) Fig. 3 shows this type of connector, in which a socket l having an opening 4 on its surface is provided with a lever 3 having a knob 3a at the front end and a claw 3b projecting in the middle. Plug 2 can be inserted. When connecting the connector, the plug 2 is inserted into the socket 1 as shown in FIG. It is latched to the edge 4a and is in a locked state.

The lock is released by pressing down the knob 3a.

(Problem to be Solved by the Invention) However, as shown in Fig. 4, in the half-locked state where the claw 3b is hidden in the front surface of the socket, the amount of displacement of the knob 3a is small, so visual or contact confirmation cannot be performed. There was definitely an issue that was difficult to resolve.

SUMMARY OF THE INVENTION Therefore, it is an object of the present invention to provide a lock type connector of the type mentioned at the beginning, in which the unlocked state can be reliably confirmed.

(Means for Solving the Problems) In order to achieve this object, the present invention has the front end portion of the plug locking lever placed on the socket surface hinged to the socket, and the front end portion has a front end portion that is placed on the socket surface. The lever enters the plug entry path through the formed opening to form a hanging part that is pushed by the plug and rotates, and the rear end of the lever has a knob facing upward that engages with the rear end of the plug. It is a protruding structure. The length of the lever is such that when the plug is inserted, the hanging part is rotated to raise the knob to a height where it can be seen when properly inserted.

Furthermore, this knob is set so that it can be engaged with the rear end of the plug in a normally inserted state by manually rotating the knob forward.

(Function) When the plug is inserted, the plug presses the hanging part and rotates it, raising the knob to a height where it can be seen when properly inserted.

Further, by manually rotating the knob forward, the plug is engaged with the rear end of the plug which is in the normally fitted state.

(Embodiment) FIG. 1 shows a perspective view of a lock type connector according to an embodiment of the present invention.

The lock type connector is composed of a socket 8 and a plug 9, and the plurality of contacts inserted into each through hole are not shown in the figure. is mounted, the front end portion of which is hinged to a pin 12 that extends between the sides of the socket, and has a hanging portion 11 that enters the plug entry path through an opening 8b formed in the upper surface 8a. on the other hand,
A knob 14 in which a locking hole 14a is formed projects upward at the rear end portion of the lever IO. An integral hinge portion 10a is formed on the back surface of the front end portion of the lever lO when placed on the upper surface 8a. Each of these parts 1O11, 1, and 14 is integrally molded of elastic synthetic resin, for example.

A four part 20 corresponding to the width of the hanging part 11 is formed at the center of the upper surface 9a of the plug 9, and a locking hole 14a is formed at the rear end.
A wall portion 21 is formed with a claw 21 for locking the wall. The height of the recess 20 is such that the hanging portion 1 contacts the hanging portion 11 and rotates by approximately 90 degrees in conjunction with the forward movement.
The lever 10 is set so as to lightly contact the side surface 11a of the lever 10 to maintain the upright state of the lever 10. The length of lever lO is
In this upright state, the knob 14 can be raised to a height where it can be reliably seen, and further, by rotation, the locking hole 14a can be positioned to the claw 21a at the rear end of the plug that is in the normally fitted state. It is set.

The operation of the connector configured in this way will be explained.

In the separated state, as shown in FIG. 2a, the lever 10 rests along the upper surface 8a of the socket, making the overall height as low as possible. When plug 9 is inserted,
As shown in FIG. 2, the tip 20a of the recess 20 is
The lever IO is rotated 90° upon contact with the hanging portion 11, and the knob 14 is held in an upright state with the side surface 11a in contact with the four portions 20. In this state, the lock preparation state can be easily confirmed visually or by groping. Furthermore, rotate the knob 14 toward you by hand against the elasticity of the lever 10, and
As shown in Figure C, the locking hole 14a is locked by the claw 21a. In this locked state, the height of the lever 10 is lowered along the upper surface 8a of the socket or the upper surface 9a of the plug 9, similar to the above-mentioned separated state, making the two operations easier. When the lock is released by operating the knob 14, the lever l
Due to the elasticity of O, it returns to the position shown in Figure 2.

In addition, as another example, if the aforementioned lever does not have bending elasticity, the hanging portion also locks the lever forward against the frictional force between the hanging portion that maintains the upright state and the plug surface. It is also possible to configure it to rotate in conjunction with the rotation.

(Effects of the Invention) According to the above-mentioned first aspect of the invention, since the knob rises when the plug is inserted, the state of the lock and unlocker can be reliably visually confirmed, and it is also easy to check by groping in areas that cannot be seen with the naked eye. This confirmation ensures that the lock is secured. When locked in the mated state, the knob is along the connector surface, so it does not become an obstacle when working in narrow spaces.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a locking connector according to an embodiment of the present invention in a separated state, FIG. 2 is a cross-sectional view illustrating the operation of the same connector, and FIG. 3 is a conventional locking connector in a separated state. The perspective view and FIG. 4 are diagrams for explaining the operation of this conventional connector. 8...Socket, 9...Plug, IO-
...Lever, 11--Drooping part, 14...Knob.

Claims (1)

[Claims] In a lock type connector in which a plug is inserted into a socket to make an electrical connection and is locked in the properly inserted state, the front end portion of a plug locking lever placed on the socket surface. is hinged to the socket, and the front end portion is formed with a hanging part that is rotated by being pushed by the plug by entering the plug entry path through an opening formed in the socket surface, and the rear end of the lever The part has a knob protruding upward that engages with the rear end of the plug, and the length of the lever is such that when the plug is inserted, the hanging part is rotated so that the knob is in the properly inserted state. The knob is raised to a visible height, and furthermore, the knob is set so that it can be engaged with the rear end of the plug in the normally fitted state by manually rotating the knob forward. A locking connector featuring: