JPH0226137Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" This invention relates to a connector in which a metal shell is fixed to a contact accommodating portion of an insulating holder.

``Prior Art'' A connector has been proposed in the past in which a metal shell is fixed to protrude in front of an insulating holder, and a contact accommodating portion in which a contact is accommodated is provided within the shell.

FIG. 2 is an assembly diagram showing the configuration of this type of connector that has been proposed in the past, in which the plate surface of an insulating holder 11 made of a synthetic resin material, for example, having a substantially rectangular plate shape protrudes forward at approximately the center to accommodate contacts. Part 1
3 is formed. A metal shell 12 is fixedly held to the insulating holder 11 so as to surround the contact accommodating portion 13 with its circumferential surface. A housing hole is formed in the contact housing portion 13, and a contact is fixedly housed in each of the housing holes.

Mounting holes 14-1, 1 are provided on both sides of the insulating holder 11.
4-2 are formed, and engaging pieces 15 are fixed to these mounting holes with screws 16, respectively, thereby forming an engaging portion with the attached connector.

The engagement piece 15 has a mount 17 formed on a rectangular plate made of an elastic material such as a leaf spring material, and the plate is bent at a right angle at approximately the center position, and the end of this bent extension is folded back to the outside. Thus, a locking portion 18 is formed. The engaging piece 15 is attached to the insulating holder 1 at the mounting hole 17 position.
The locking portions 18 are screwed and fixed to the mounting holes 14-1 and 14-2 on both sides of the insulating holder 11 toward both longitudinal ends of the insulating holder 11 by screws 16, respectively.

A connector to be connected is connected to the connector configured in this way, and the connector to be connected is provided with engaging pieces 20 as shown in FIG. 2 on both sides of the connector. Locking portions 20-C are formed at the ends of the locking portions 20-C, which are bent in a direction toward each other.

When the connector to be connected is moved in the direction shown by arrow A in FIG. 2 and the connector to be connected is connected to the connector, the engaging portion 18 of the connector and the engaging portion 20-C of the connector to be connected are respectively When engaged, the connector to be connected is attached to the connector.
Conversely, in order to release the attached state, the locking part 20-C is displaced in the direction of arrow B in FIG. 2 to release the engagement with the locking part 18, and the connector to be connected is pulled out. good.

``Problems to be solved with the invention'' In this conventionally proposed connector, it is necessary to create the engaging piece 15 separately from the connector and fix it to the insulating holder 11 of the connector with screws. , the number of parts increases and tightening work is required. In addition, in the manufacturing process, as shown in FIG.
There is a risk that a defective product may be attached to the insulating holder 11 in a tilted state.

Even if there is no inclination, the engagement piece spacing
There may be variations in the quality of the connector, and defective products may be manufactured in which the conditions for attaching the connector to the connector are not consistent.

If there are variations in the inclination or the spacing between the engaging pieces, the connector and the connector to be connected may not be properly attached and detached, and the attachment may not be completed completely, or it may be difficult to attach and release the connector. do.

This invention solves the problems with conventionally proposed connectors of this type, and ensures that the engaging portion of the connector is always accurately provided, and that the connector to be connected can be attached and unattached smoothly under certain conditions. This provides a connector that can be used.

"Structure of the invention" In this invention, a metal shell is fixed to the insulating holder so as to protrude forward, contacts are accommodated in the contact accommodating part located inside this shell, and the contacts are connected to the attached connector on both sides of the insulating holder. An engaging portion is provided.

In this invention, both sides of the insulating holder are integrally bent and extended in the direction in which the shell protrudes, and an engaging portion is formed at this bent extension. Both sides of the shell are bent parallel to the bent extension, and frame-shaped reinforcing pieces are formed at the bent portions. This frame-shaped reinforcing piece is fitted into the bent extension, and an engaging part is formed by the fitted frame-shaped reinforcing piece and the bent extension.

``Example'' The connector of this invention will be described in detail below based on an example using the drawings.

FIG. 1 is an assembly diagram showing the structure of an embodiment of the connector of this invention, in which an insulating holder 21 is formed of an insulating material such as a synthetic resin material. Insulation holder 2
A contact accommodating portion 22 is formed by integrally protruding the front plate surface of the contact accommodating portion 1 in a substantially rectangular shape.

A plurality of accommodation holes 23 are formed in this contact accommodation portion 22, and contacts (not shown) are fixedly accommodated in each of these accommodation holes.

Both sides of the insulating holder 21 are bent and extended substantially perpendicularly to the plate surface in the same direction as the protruding direction of the contact accommodating portion 22, and an engaging portion is formed in this bent extension.

That is, both sides of the insulating holder 21 are bent and extended in the same direction as the protruding direction of the contact accommodating part 22 to form the bent piece 25. A taper 25-T is formed at the protruding end of the bent piece 25 so that the thickness becomes gradually thinner in the protruding direction.

Bent pieces 2 formed on both sides of the insulating holder 21
Thin engaging bodies 26 are formed on the mutually opposing plate surfaces of 5 and protrude perpendicularly to the plate surfaces. A stepped portion 27 is formed on the plate surface of the bent piece 25 on the opposite side of the engaging body 26, where the plate surface of the bent piece 25 becomes thinner from the end position of the taper 25-T.

A cut groove 28 is formed on the end surface of the engaging body 26 on the protruding end side of the bent piece 25 over the entire surface in a direction perpendicular to the longitudinal direction of the insulating holder 21. Further, an engagement groove 35 is formed on the upper edge surface of the insulating holder 21.

The contact base 10 is composed of the insulating holder 21, the contact accommodating portion 22, and the engaging portion formed on the insulating holder 21. A metal shell 30 is fitted and fixed to this contact base 10 to form a connector.

As shown in FIG. 1, the metal shell 30 has a cylindrical body 32 fixed to a plate-shaped substrate 31, and both end surfaces of the cylindrical body 32 including the substrate portion are open surfaces. Both ends of the substrate 31 are hollowed out into a substantially rectangular shape, and the substrate 31 is bent in the same direction as the protruding direction of the cylinder 32 from near the starting end of the hollowed out portion to form a frame-shaped reinforcing piece 33.

The length in the longitudinal direction of the hollowed out portions formed at both longitudinal ends of the plate surface of the substrate 31 is set to be slightly larger than the thickness of the engaging body 26, and the width is set to be slightly larger than the height of the engaging body 26. be done. Further, the thickness of the frame-shaped reinforcing piece 33 is set to be slightly smaller than the width of the cut groove 28. Furthermore, the depth of the cut groove 28 is increased by the frame-shaped reinforcing piece 33.
The width of the connecting piece 33-L is set to be approximately equal to the width of the connecting piece 33-L.
Further, a portion of the substrate 31 is integrally projected in the opposite direction to the cylinder 32 to form an engaging piece 34.

The shell 30 is fitted to the contact base 10 to form a connector body. By this fitting, the engagement pieces 34 are respectively positioned in the engagement grooves 35, and the frame-shaped reinforcing pieces 33 are fitted into the bent extensions so as to cover the engagement body 26 from the outside.

By this fitting, the connecting piece portion 33-L of the frame-shaped reinforcing piece 33 enters into the cut groove 38, and the cylinder body 32 is positioned in opposition to the circumferential surface of the contact accommodating portion 22. The engagement piece 34 is caulked at the end of the engagement groove 35 to fix the shell 30 to the contact base 10.

FIGS. 8 and 9 are views showing how the connector to be connected is attached to the connector of this invention, and as the connector is attached, the engaging piece 20 of the connector to be connected is inserted from the outside of the bending piece 25 into its locking part 20. -C along the taper 25-T in the direction of arrow A.

As shown in FIG. 9, the engaging piece 20 once moves in the direction of arrow B, and when the locking portion 20-C overcomes the taper 25-T, the locking portion 20-C moves in the direction of the arrow and forms a stepped portion. It is elastically engaged with the bending piece 25 at the 27 position.
The connector to be connected is attached to the connector by the engagement between the locking portion 20-C and the bending piece 25.

In order to release the engagement between the engagement piece 20 and the bending piece 25 and release the attachment of the connector to be connected, the engagement piece 20 is deflected in the direction of arrow B in FIG. Just pull out the connector to be connected in the direction of arrow D while holding it.

"Effects of the Idea" The contact base 10 can be integrally formed by, for example, molding, and by fitting and fixing the shell 30 to the contact base, the contact can be assembled accurately and easily.

Since the contact base 10 is mechanically reinforced by the metal shell 30, a strong structure is realized even against the application of external force such as a falling object. Since the engaging portion is integrally formed at the same time as the contact base 10 is produced, it is possible to manufacture the engaging portion with high manufacturing precision. High-quality connectors can be mass-produced easily and efficiently.

As explained in detail above, in this invention, the operation of attaching and unattaching to the connector to be connected is performed under certain conditions, and it is strong against the application of external force, and the contact accommodating part and the engaging part are not deformed or damaged. It is possible to provide a connector that does not cause any problems and allows high-quality products to be manufactured with high production efficiency.

[Brief explanation of the drawing]

FIG. 1 is a perspective assembly diagram showing the configuration of an embodiment of the connector of this invention, FIG. 2 is an assembly diagram showing the configuration of a conventionally proposed connector of this type, and FIGS. FIGS. 5, 6 and 7 are a front view, a front view, a front view, a side view and a side view, respectively, showing the configuration of an embodiment of the connector of this invention. 8
9 is a diagram showing a process of attaching an embodiment of the connector of this invention to a connector to be connected, and FIG. 9 is a diagram showing a state of attachment of an embodiment of the connector of this invention to a connector to be connected. 10: Contact base, 20: Engagement piece, 20-
C: Locking portion, 21: Insulating holder, 22: Contact accommodating portion, 23: Accommodating hole, 25: Bent piece, 25:
-T: taper, 26: engaging body, 27: step, 2
8: Cut groove, 30: Shell, 31: Substrate, 32: Cylindrical body, 33: Frame-shaped reinforcing piece, 34: Engagement piece, 35: Engagement groove.

Claims (1)

[Scope of utility model registration request] In the connector, a metal shell is fixed to an insulating holder so as to protrude forward, a contact is accommodated in the shell, and engagement parts with a mounted connector are provided on both sides of the insulating holder, wherein the insulating holder Both sides of the shell are bent and extended integrally in the projecting direction of the shell, the engaging part is formed in the bent extension, and both sides of the shell are bent parallel to the bent extension to form a frame-shaped reinforcing piece. The connector is characterized in that the frame-shaped reinforcing piece is fitted into the bent extension, and the engaging part is formed by the frame-shaped reinforcing piece and the bent extension.