JPH083985Y2 - connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Outline] A cable connector, and more particularly, a connector having a locking mechanism that is easy to manufacture. A bearing has a simple structure to facilitate sheet metal working of a hook member and an inner cover. , For the purpose of simplifying the assembly by eliminating the shaft pin and reducing the number of parts to reduce the cost, the inner cover made of sheet metal covering the connected connector main body and freely rotatable on the side wall of the inner cover A hook member made of a metal plate that is attached to the mating connector and is locked to the mating connector, and a locking projection that projects outward and a locking plate portion that extends rearward from the locking projection on the parallel side wall of the inner cover. The hook member is formed with a claw portion that engages with the mating connector, a spring tongue piece that extends rearward and has an engaging hole formed in the end portion, and an inner portion near the engaging hole. A pair protruding opposite L
Bending guide part, operation part with a handle of insulator attached,
A V spring portion that abuts the diagonal side wall of the inner cover is provided in order from the front end, and the hook member is mounted from the rear end of the parallel side wall of the inner cover, so that the locking projection is provided with the locking hole. The hook plate is held by the inner cover so that the hook plate is held by the guide portion while being held by the inner cover.

[Industrial applications]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable connector, and more particularly to a connector having a retaining lock mechanism that is easy to manufacture. Many interface connectors for detachably connecting a cable to a device are equipped with a lock mechanism in order to prevent the mating with the mating connector from being loosened by external force or vibration.

[Conventional technology]

The cable-side connector has a lock mechanism that locks the mating connector so as not to loosen the fitting due to external force or vibration when inserted into the device-side connector. This lock mechanism usually has a structure in which a rotatable hook member is attached to the side surface of the cable cover, and it automatically locks to the mating connector without any special operation at the time of insertion, but at the time of removal, the operating part of the hook member is The connector is pulled out while pressing to release the lock.

FIG. 3 is a view showing a connector with a lock mechanism to which the present invention is applied. In the figure, 1 is a connector on the cable side, and 2 is a mating connector attached to the apparatus.
The mating connector 2 is a metal shell for electromagnetic shielding.
21 is attached to a contact installation member, and a female contact 22 implanted inside is led out from the rear portion, bent at a substantially right angle, and connected to the pattern of the printed board 23. Lock receiving members 24 project from both ends of the front surface.

The connector 1 on the cable side has a connector body 12 in which a conductive wire 31 is connected to each contact 11 planted in a contact installation member, inner covers 13 and 14 for covering the connector body 12 and the connection portion, and covering them. And an insulating cover 15. The inner covers 13 and 14 are formed by sheet metal working of a metal plate, and are composed of an upper half body 13 and a lower half body 14, and a connector body.
The upper half 13 is covered so as to cover 12, and the outer half is covered with the lower half 14
Assembled to hold. A hook member 4 having a claw portion 41 at its tip and an insulating handle 42 at its rear portion is rotatably provided in the middle part on both side walls 14a of the lower half body 14 so as to be rotatable. The lock mechanism is configured by projecting to. When the insulating cover 15 is put on the outer side of the inner cover, the grip 42 of the hook member is exposed to the outside from the rear side surface of the insulating cover 15. At the time of fitting, the hook member 4 engages with the lock receiving member 24 of the mating connector and serves as a retaining function. When the handle 42 is pressed inward at the time of removal, the claw portion 41 opens outward as shown by the arrow and the lock is released. To be done. In this connector, the main body of the connector and the connecting portion are surrounded by a metal inner cover, and the outer side thereof is surrounded by an insulating cover, so that the electromagnetic shield effect and the electrostatic disturbance countermeasure are good.

FIG. 4 is an exploded perspective view of a conventional lock mechanism in the above connector, which is an enlarged view of the lock mechanism attached to the lower half of the inner cover shown in FIG. The lower half body 14 has side walls 14a, 14c, etc. for holding the upper half body around the periphery except the front side (right side in the figure), and the rear end of the side wall 14a is divided into three parts and is formed into a semicircular bearing portion 14b. Is provided.
A bearing 43 is also provided in the middle of the hook member 4, and the pin 44 is passed through both bearings 14b and 43 to pivotally support the hook member 4 with an inner cover. In addition, the rear end of the hook member 4 is bent into a V-shape to form a V-spring portion 45.
Is provided, and the tip is brought into contact with the diagonal side wall 14c of the inner cover to urge the claw portion 41 at the other end inward, and when the mating connector is fitted, the lock receiving member has a claw portion. Locks well.

When releasing the lock, if the grip of the insulator fitted to the rear end is grasped, the tip turns outward against the bias of the spring and the pawl separates from the lock receiving member, so it can be easily removed. .

[Problems to be solved by the device]

In the above-mentioned conventional connector, since it is necessary to form the arc-shaped bearing portion on the hook member and the inner cover, the sheet metal working is difficult. Further, since the pin is pivotally supported, there is a problem that the assembly for inserting the pin is troublesome and the number of parts is large and the cost is increased.

The present invention has been made in view of the above problems.The bearing has a simple structure to facilitate the sheet metal working of the hook member and the inner cover, and to eliminate the shaft pin to simplify the assembly and reduce the number of parts. The purpose is to reduce costs.

[Means for solving the problem]

The above-mentioned problems include an inner cover made of a sheet metal that covers the connected connector body, and a hook member made of a sheet metal that is rotatably attached to a side wall of the inner cover and locked to a mating connector. On the parallel side wall of the cover, a locking projection protruding outward and a locking plate portion extending rearward from the locking projection are formed, and the hook member has a claw portion locking with a mating connector,
A spring tongue piece that extends rearwardly and has a locking hole formed in its end portion, a pair of L-bending guide portions that protrude toward the inner side in the width direction in the vicinity of the rear side of the locking hole, and a handle of the insulator are provided. A capped operation portion and a V spring portion that comes into contact with the oblique side wall of the inter cover are sequentially provided from the tip end, and the hook member is attached from the rear end of the parallel side wall of the inner cover, whereby the above-mentioned hook member is attached. The locking projection is locked in the locking hole, the locking plate is held by the guide, and the hook member is rotatably held by the inner cover. It is solved by the connector of the present invention.

[Action]

Since there is no arc-shaped bending process on the inner cover or hook member, sheet metal processing becomes easy. By simply attaching the hook member along the side wall of the cover from the rear side, the guide member can be rotatably assembled, so that it is not necessary to pivotally support it with a pin, the number of parts is reduced, and the assembly is simplified.

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an exploded perspective view showing a lock mechanism of a connector of the present invention, and FIG. 2 is a sectional view of a lock mechanism portion in a completed connector body. Note that the same reference numeral represents the same object throughout the drawings. The connector of the present embodiment is the same except that the shape of the shaft support portion of the lock mechanism of the connector described above with reference to FIGS. 3 and 4 is different.

In FIG. 1, 14 is the lower half of the inner cover, SP
Made of sheet metal processed products such as C material (thin sheet steel for drawing),
A conductive wire is connected to the connector body 1 housed in the upper half 13 to cover and assemble the connector body 1 from the lower side to electromagnetically shield contacts and connection portions.

A parallel side wall 14a and a diagonal side wall 14c are provided around the lower half body. The parallel side wall 14a has a protruding portion 14d which is cut and raised outward at a predetermined position from the front end, and has a narrower width at the rear end to form a locking plate portion 14e. The oblique side wall 14c is formed behind the parallel side wall 14a. Four
Is a hook member, which is made of a thin stainless steel plate having spring properties, and has a claw portion 41 at its tip that engages with a mating connector.
And a spring tongue piece 46 having a narrow width in the middle and extending rearwardly and having a locking hole 46a at the end, and a pair of spring tongue pieces 46 bent in an L shape near the rear of the spring tongue piece 46 and facing each other and projecting inward. L bending guide part
47, an operating portion 48 to which an insulator handle 45 is attached, and a V spring portion 45 that abuts the diagonal side wall 14c of the inner cover at the rear end.

Attach the hook member 4 having the above-described structure to the parallel side wall as indicated by an arrow A.
When the inner cover is inserted from the rear end of 14a, the locking protrusion 14d
The spring tongue piece 46 is pushed up to be inserted while flexing outward, and stops at the position where the locking projection 14d engages with the locking hole 46.
FIG. 2 is a cross-sectional view of the lock mechanism portion after all the assembling is completed. The hook member 4 is provided between the side wall of the outermost insulating cover 15 and the parallel side wall 14a of the lower half body 14 of the inner cover. The assembled state is shown.

In this position, the guide portion 47 holds the locking plate portion 14e, and the tip of the V spring portion 45 at the rear end abuts the diagonal side wall 14b to urge the rear end of the hook member 4 to the outside. Here, the guide portion 47 of the hook member 4 is the locking plate portion 14e of the inner cover.
Since it is supported by
41 is biased inward, and the mating connector and lock receiving member 24
Surely get caught in. The force applied to the connector in the direction of removal (to the left in the figure) is transmitted to the hook member 4 via the locking projection 14d, but is not caught because it is caught.

When releasing the lock, press the handle 42 as shown by the arrow P,
The hook member 4 rotates around the guide portion 47 as a fulcrum, as shown by the alternate long and short dash line, and the claw portion 41 opens to the outside and is disengaged from the lock receiving member 24 of the mating connector.

[Effect of device]

As described above, according to the present invention, in a connector for an interface having a good electromagnetic shielding property and an effect of preventing electrostatic damage, the retaining lock mechanism attached to the inner cover has a simple structure, and the hook member and the inner cover are subjected to sheet metal processing. In addition, since the shaft pin is not required, the assembling can be simplified and the cost can be reduced by reducing the number of parts, and its practical effect is remarkable.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a lock mechanism of a connector of the present invention, FIG. 2 is a sectional view of a lock mechanism portion in a completed connector body, FIG. 3 is a view showing a connector with a lock mechanism, and FIG. 3 is an exploded perspective view of the lock mechanism of FIG. In the figure, 1 ... Connector body, 4 ... Hook member, 41 ... Claw part,
42 …… Handle, 45 …… V spring part, 46 …… Spring tongue, 46a…
… Locking hole, 47 …… L bend guide part, 13 …… Inner cover upper half, 14 …… Inner cover lower half, 14a ……
Parallel side wall, 14c …… Slanting side wall, 14d …… Locking hole, 14e ……
Locking plate, 15 ... Insulating cover, 24 ... Lock receiving member for mating connector, 21 ... Driver.

Claims (1)

[Scope of utility model registration request] 1. An inner cover (14) made of a metal plate for covering the connected connector body (1), and a hook member (made of a metal plate) rotatably attached to a side wall of the inner cover and locked to a mating connector ( 4), and a locking projection (14d) protruding outward on the parallel side wall (14a) of the inner cover, and a locking plate portion (14e) extending rearward from the locking projection (14d). The hook member (4) is formed with a claw portion (41) that engages with a mating connector, and a spring tongue (46) that extends rearward and has an engaging hole (46a) at the end. ), A pair of L-bending guide portions (47) projecting inward in the width direction in the vicinity of the rear of the locking hole (46a), and an operating portion (on which the handle (42) of the insulator is attached. Four
8) and a V spring portion (45) that comes into contact with the diagonal side wall (14c) of the inter cover are provided in order from the front end, and the hook extends from the rear end of the parallel side wall (14a) of the inner cover (14). By mounting the member (4), the locking projection (14d) is locked in the locking hole (46a), and the locking plate part (14e) is held by the guide part (47). The connector is characterized in that the book member (4) is rotatably held by the inner cover (14).