JP2005353469A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector capable of surely preventing an operating member from falling when locking it. <P>SOLUTION: An almost semi-circular protrusion 55 is protrusively provided on the end face of a rotary shaft part 54, and when operating the operating member, the peripheral surface of the rotary shaft part 54 and the joint surface 56 of the protrusion 55 abuts on a protrusion 22 and a projection 23 provided on the facing side of the arm part 20 of a housing 10 respectively, and the operating member is prevented from coming off. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a connector, and more particularly to a connector for connecting a flexible printed wiring board (FPC).

Conventionally, as a connector for connecting a flexible printed circuit board, for example, there is a rotation lock type connector (see Patent Document 1).
That is, the connector according to Patent Document 1 is provided with concave support portions 37, 37 at both end portions on the back side of the housing 30. Then, by inserting the supported portion 27 of the operation member 20 into the support portion 37 and mounting it on the back side of the housing 30, the lateral rotation axis X is centered between the release position and the connection position. The operation member 20 is supported on the housing 30 so as to be rotatable.
Japanese Patent Laid-Open No. 11-307198

  However, the connector described above merely discloses that the supported portion 27 of the operation member 20 is supported by the support portion 37 of the housing 30. For this reason, if the operation member 20 and the housing 30 become smaller as the apparatus becomes smaller, it is difficult to obtain a supporting force for preventing the operation member 20 from dropping off, and it is not easy to adjust the force when operating the operation member 20. For this reason, for example, when the operation member 20 is locked, an operator may erroneously apply an excessive operation force, causing the operation member 20 to drop from the housing 30.

  In view of the above problems, an object of the present invention is to provide a connector that can reliably prevent the operation member from falling off during operation.

Means for Solving the Problems and Effects of the Invention

  In order to solve the above problems, the connector according to the present invention has a housing extending so as to oppose a pair of arm portions from both side surfaces of the housing main body, and an operation piece via a support column erected on the contact piece main body. A plurality of contacts that extend and have one end portion of the operation piece as a clamping portion and the other end portion as an operated portion, and are arranged in parallel at a predetermined pitch in the housing, and rotate to both end surfaces. A plurality of cam portions each having the same rotation axis as the rotation shaft portion are integrally formed at a predetermined pitch between the rotation shaft portions. An operation member that is pivotably secured to the arm portion of the housing, and the cam member of the operation member can be locked by rotating the operation member by pushing down the operation member. While pushing up the operated portion of the operation piece of the contactor, A connector for pressing and electrically connecting the holding portion of the operation piece of the child to the connection portion of the printed wiring board inserted into the housing, and having a substantially semicircular protrusion on the end surface of the rotating shaft portion During the operation, the outer peripheral surface of the rotating shaft portion and the joint surface of the protrusion are in contact with the retaining protrusion and the protrusion projecting on the opposing surface of the arm portion of the housing, respectively, and are prevented from coming off. The configuration is as follows.

  According to the present invention, the operation member is prevented from being detached from the housing at two locations of the rotation shaft portion and the protrusion of the operation member when locking or releasing the lock. Can be reliably prevented.

As an embodiment according to the present invention, there is provided a taper surface that prevents the drop-out preventing protrusion and the protrusion from falling out by acting so as to bite into the outer peripheral surface of the rotating shaft portion and the joint surface of the protrusion when locked. It is good also as a structure to have.
According to this embodiment, even if an external force acts in a direction in which the operation member is pulled out at the time of locking, the tapered surface can prevent the operation member from falling off more reliably.

As another embodiment according to the present invention, the operated portion of the operation piece of the contact does not generate a component force to push the operation member to the outside in the cam portion of the operation member when locked. The structure which press-contacts to may be sufficient.
According to the present embodiment, it is possible to prevent the operation member from dropping off due to the spring force of the operation piece that is always urged at the time of locking, and the reliability is further improved.

Embodiments according to the present invention will be described with reference to the accompanying drawings of FIGS.
As shown in FIG. 1, the connector according to the present embodiment includes a housing 10, a support fitting 30, a contact 40, and an operation member 50. The external dimensions of the connector according to this embodiment are a maximum width of 3.5 mm, a maximum length of 6.0 mm, and a maximum height of 1.25 mm.

  The housing 10 extends in parallel from both side surfaces of the cylindrical housing body 11 having a substantially rectangular cross section so as to oppose the pair of arm portions 20, 20. The housing body 11 is provided with press-fitting grooves 12 and 12 each having a T-shaped cross section for press-fitting and holding support fittings 30 and 30 to be described later on both side surfaces thereof. Further, the housing body 11 is provided with press contacts 40, which will be described later, on the upper and lower surfaces of the housing main body 11 and the lower terminal grooves 13, 14 facing each other at a predetermined pitch. The ribs 15 are integrally formed at a predetermined pitch so as to connect the upper and lower surfaces positioned between the upper and lower terminal grooves 13 and 14 and the other upper and lower terminal grooves 13 and 14 (FIG. 2A). Furthermore, as shown in FIG. 5D, a holding portion 16 that is located between the upper and lower terminal grooves 13 and 14 and that connects and integrates the rib 15 is integrally formed. As shown in FIGS. 2A and 3B, a position restricting claw portion 17 projects laterally toward the back side at the base portion of the arm portion 20 of the housing 11.

  As shown in FIG. 2B, the arm portion 20 has a step portion 21 that is one step lower on the top surface on the tip side, and an operation member 50 that will be described later can be rotated on the opposing inner surface on the tip side. The protrusions 22 for retaining the caps are formed respectively. The retaining protrusion 22 has a lower surface serving as a guide surface 22a for assembling an operation member 50 described later, and a tapered surface 22b formed on the rear side thereof. Further, the arm portion 20 is provided with a retaining projection 23 at a base portion inside the retaining projection 22. Further, as shown in FIG. 7C, the retaining protrusions 22 and the protrusions 23 have tapered surfaces 22c and 23a on the side surfaces facing the front side. This is to prevent the operation member 50 described later from falling off more reliably.

  The support fitting 30 is made of a metal plate bent in a substantially L-shaped cross section, and locking projections 32, 32 are provided on both end faces of the vertical portion 31, respectively. Then, the vertical portion 31 is press-fitted into the press-fitting groove 12 of the housing body 11 from below, and is prevented from coming off via the locking projection 32. Next, the housing 10 can be supported on the printed wiring board by fixing the support fitting 30 on a flexible or hard printed wiring board (not shown).

  As shown in FIG. 2C, the contact 40 is formed by punching from an elastic metal material, and the operation piece 43 extends in the horizontal direction via a support column 42 protruding upward from the center of the contact main body 41. doing. Further, the contact body 41 is provided with a clamping portion 41a on one end side and a terminal portion 41b on the other end side. Further, a positioning concave portion 41c for positioning an operation member 50 to be described later is formed between the column portion 42 and the terminal portion 41b, and a locking projection 41d is provided at the base portion of the column portion 42. is there.

  Then, as shown in FIG. 5D, when the operation piece 43 and the contact body 41 of the contact 40 are press-fitted into the upper and lower terminal grooves 13 and 14 of the housing body 11, the engaging claws 41e are inserted into the housing body 11, respectively. Is latched, and the latching protrusion 41d is latched to the holding portion 16 and is prevented from coming off. In addition, a locking portion may be formed on one end side of the lower terminal groove 14 in order to restrict the lifting of the clamping portion 41a located at the tip of the contact body 41.

  As shown in FIG. 2D, the operation member 50 has ribs 51 protruding in parallel at a predetermined pitch, and a contact portion 52 is provided so as to be adjacent to the rib 51 located on the outermost side. The abutment portion 52 is for preventing the operation member 50 from falling to the front side. Further, between the ribs 51, a cam portion 53 for driving the contactor 40 is integrally formed on the lever principle. Further, a rotation shaft portion 54 is provided on the side surface of the contact portion 52, and a substantially semicircular protrusion 55 is provided on the end surface of the rotation shaft portion 54 so as to protrude laterally. 56 is formed. The rotation center of the rotation shaft portion 54 and the rotation center of the cam portion 53 are located on the same straight line.

  Then, as shown in FIG. 5A, the joint surface 56 of the operation member 50 is brought into contact with the guide surface 22a of the retaining projection 22 provided on the arm portion 20 of the housing 10 and positioned. Then, by pressing the rotating shaft portion 54 of the operation member 50 against the taper surface 22b, the arm portion 20 is elastically deformed so as to get over the retaining projection 22 and fit. Then, the cam portion 53 of the operating member 50 is fitted and positioned in the positioning recess 41c of the contact 40, and the assembly is completed. In addition, when the contact portion 52 of the operation member 50 contacts the position restricting claw portion 17 of the housing 10, the operation member 50 can be prevented from falling down.

  Next, as shown in FIG. 5D, the FPC 60 is inserted from the front side of the connector having the above-described configuration, and is pressed against the rib 15 to be positioned. When the operation member 50 is pushed down and rotated around the axis of the rotation shaft portion 54, the cam portion 53 rises and pushes up the operated portion 43b of the operation piece 43 as shown in FIG. 8C. For this reason, the holding part 43a of the operation piece 43 holds the FPC 60 with the holding part 41a of the contactor body 41 to prevent it from coming off, and is electrically connected with the support column part 42 as a fulcrum.

  In the present embodiment, as shown in FIG. 7C, the rotating shaft portion 54 abuts against the tapered surface 22 c of the retaining projection 22, and the joint surface 56 of the projecting portion 55 is a tapered surface of the retaining projection 23. 23a abuts. At this time, the joint surface 56 and the taper surface 23a can be brought into surface contact with each other, and even when an excessive operation force is applied, the operation member 50 is unlikely to come off. In particular, the edge portions of the tapered surfaces 22c and 23a act so as to bite into the rotating shaft portion 54 and the joining surface 56, respectively. For this reason, it is possible to more reliably prevent the operation member 50 from dropping off during rotation.

  8C, the operating point of the operated portion 43b of the contact 40 with respect to the cam portion 53 is orthogonal to the axis of the cam portion 53, that is, the rotation axis of the rotation shaft portion 54, and Located on the vertical line. For this reason, the spring force of the operation piece 43 is not divided in the horizontal direction, and all of the spring force is loaded on the axis of the cam portion 53 in the vertical direction. For this reason, there is an advantage that the operation member 50 is less likely to come out of the recess 41c of the contact 40, and the operation member 50 is more difficult to drop off.

  When the operation member 50 is locked and the FPC 60 is sandwiched, the upper surface of the housing body 11 and the upper surface of the operation member 50 are flush with each other as shown in FIGS. 8A and 8B. This is because it is not easy to determine whether or not the operating member 50 is reliably displaced to the operating position when the operating member 50 is also reduced as the apparatus is downsized. For this reason, the operation member 50 can be reliably displaced to the locked state only by pressing the operation member 50 with a flat surface of a jig (not shown).

  Next, when removing the FPC 60, the cam member 53 rotates against the pressing force of the operated portion 43b of the operating piece 43 by pulling up and rotating the operating member 50 in the opposite direction. Move. For this reason, the operation piece 43 returns to the original state, the clamping state of the clamping parts 41 a and 43 a with respect to the FPC 60 is released, and the FPC 60 can be extracted from the housing 11.

  The connector according to the present invention can also be applied to a normal hard printed wiring board.

It is a disassembled perspective view which shows embodiment of the connector concerning this invention. 2A is a rear view of the housing shown in FIG. 1, FIG. 2B is a sectional view taken along line BB of FIG. 2A, and FIGS. 2C and 2D are perspective views showing the contact and the operation member shown in FIG. 3A and 3B are perspective views as seen from different angles showing a state before the connector shown in FIG. 1 is locked. 4A, 4B, and 4C are a plan view, a front view, and a bottom view, respectively, showing the connector shown in FIG. 5A and 5B are rear views showing a state before and after the operation member is assembled to the housing, FIG. 5C is a left side view of FIG. 5B, and FIG. 5D is a longitudinal sectional view. It is a perspective view which shows the state after the lock | rock of the connector shown in FIG. 7A, 7B and 7C are a plan view, a front view and a bottom view, respectively, showing the connector shown in FIG. 8A is a rear view of the connector shown in FIG. 6, FIG. 8B is a left side view of FIG. 8A, and FIG. 5D is a longitudinal sectional view.

Explanation of symbols

10: Housing 11: Housing body 12: Press-fit groove 13, 14: Upper and lower terminal grooves 15: Rib 16: Holding part 17: Position restricting claw part 20: Arm part 21: Step part 22: Protrusion part 22a : Guide surface 22b: Tapered surface 22c: Tapered surface 23: Locking projection 23a: Tapered surface 30: Support metal fitting 31: Vertical portion 32: Locking projection 40: Contact 41: Contact main body 41a: Holding portion 41b: Terminal part 41c: Positioning concave part 41d: Locking protrusion 41e: Locking claw 42: Supporting part 43: Operation piece 43a: Holding part 43b: Operated part 50: Operating member 51: Rib 52: Abutting part 53: Cam Portion 54: Rotating shaft portion 55: Projection 56: Joining surface 60: FPC

Claims (3)

A housing extending so as to oppose a pair of arms from both side surfaces of the housing body;
The operation piece extends through a support column erected on the contact piece main body, and one end of the operation piece is used as a clamping part, and the other end is used as an operation part. A plurality of contacts,
A rotating shaft portion is provided on both end surfaces so as to project on the same rotating shaft center, and a plurality of cam portions having the same rotating shaft center as the rotating shaft portion are provided between the rotating shaft portions. It consists of an operation member that is integrally formed with a pitch, and that the rotation shaft portion is rotatably attached to the arm portion of the housing.
The cam member of the operation member pushes up the operated portion of the operation piece of the contact, while the holding portion of the operation piece of the contact is the housing. A connector that is in pressure contact with and electrically connected to the connection portion of the printed wiring board inserted therein,
A substantially semi-circular protrusion protrudes from the end surface of the rotating shaft, and the outer peripheral surface of the rotating shaft and the joint surface of the protrusion protrude from the opposing surface of the arm of the housing during operation. A connector that is prevented from coming off by coming into contact with a retaining protrusion and a protrusion.   2. The taper surface according to claim 1, wherein the retaining protrusion and the protrusion have a tapered surface that acts to bite into an outer peripheral surface of the rotating shaft portion and a joint surface of the protrusion when locked. Connector described in. The operated portion of the operation piece of the contact is pressed against the cam portion of the operation member at the time of locking so as not to generate a component force to push the operation member to the outside. Or the connector of 2.

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