JPH10214661A - Sheetlike conductive path connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability when installing a sheetlike conductive path. SOLUTION: Several terminals 2 are transversely arranged and accommodated in a connector housing 1, and a cam rod 4 used as a swing shaft of an operation lever 3 is rotatably inserted between contact pieces 16 and 17. The cam rod 4 is formed in an oval cross-section having a large diameter part 30, while a circular pressure limiting part 35 with the large diameter part 30 removed is formed at a location corresponding to a part of the terminal 2. When the operation lever 3 is swung to a release position, as described in Fig. (A), the upper contact piece 16 is pressed by the large diameter part 30, and is deflected and deformed, on the other hand, as described in Fig. (B), the contact piece 16 keeps its original attitude by means of the pressure limiting part 35 corresponding to a part of the terminal 2. A part of an inserted ribbon cable 5 is supported by pinching it between the contact piece 16 keeping the original attitude and the corresponding contact piece 17, and is temporarily retained in a state to prevent the ribbon cable 5 from slipping off.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet-like conductive path connector to which a sheet-like conductive path is attached.

[0002]

2. Description of the Related Art Conventionally, as a connector for a sheet-like conductive path, one described in Japanese Patent Application Laid-Open No. 1-315976 is known. This is, as shown in FIG. 8, an FP, which is an example of a sheet-like conductive path, is provided on the front surface of
The insertion port c of the ribbon cable b made of C is opened, and a plurality of terminals d provided with a pair of upper and lower contact pieces e and f in a forked shape are housed in the housing a in a laterally arranged manner. The lower contact piece f is fixedly provided on the lower surface side of the insertion port c, while the upper contact piece e is provided on the upper surface side of the insertion port c so as to be flexibly deformable. The upper contact piece e
A follower portion g that is bent upward while rising upward is formed on the distal end side of the connector housing a. An operation lever h provided to be able to swing with respect to the connector housing a is provided below the follower portion g. A moving shaft i is passed through, and a peripheral cam j that can be engaged with each of the follower portions g is formed on the swing shaft i.

When attaching the ribbon cable b, as shown in FIG.
When the peripheral cam j is rotated to the upright posture, the upper contact piece e is bent and deformed while the follower portion g is pressed, so that the interval with the lower contact piece f is widened. In this state, the ribbon cable b is inserted between the upper and lower contact pieces e and f from the insertion port c, and then, as shown in FIG. By rotating to the reclined position, the upper contact piece e moves back to the original posture side, and both contact pieces e,
The ribbon cable b is sandwiched between f. As a result, the conductive paths wired on the upper and lower surfaces of the ribbon cable b are held in contact with the upper and lower contact pieces e and f of the corresponding terminal d.

[0004]

The above-mentioned connector is called a non-insertion force type because no force is required for inserting the ribbon cable b, and in recent years, this type of connector has become mainstream. However, because of the non-insertion force type, for example, as shown in FIG.
When the operation lever h is depressed after the cable is inserted into the insertion port c, the ribbon cable b may be displaced in the insertion port c, or may fall out of the insertion port c in an extreme case. For this reason, it is necessary to perform the operation of tilting the operation lever h while holding the ribbon cable b inserted in the proper position, and there is still room for improvement in consideration of the workability. The present invention has been completed based on the above circumstances, and an object of the present invention is to improve workability when attaching a sheet-like conductive path.

[0005]

According to a first aspect of the present invention, there is provided a connector housing having a contact piece which is flexibly deformable and extended to contact a sheet-like conductive path. A plurality of terminals are accommodated side by side, and a receiving portion disposed opposite to the contact piece of each terminal, and a receiving portion disposed so as to traverse the vicinity of each contact piece and having a release position and a holding position. A cam shaft that is rotated around an axis between the cam shaft and the cam shaft, when the cam shaft is rotated to the release position, presses the contact piece of the terminal to separate from the receiving portion. By bending and deforming, the sheet-like conductive path is allowed to be inserted and removed, and when the camshaft is rotated to the holding position, the contact piece is moved back and the sheet-like conductive path is sandwiched between the receiving part. To maintain contact. In the G-shaped conductive path connector, a part of the cam shaft is in a non-pressed state or a state in which the amount of pressing is limited with respect to the contact piece of the terminal even when the cam shaft is rotated to the release position. It is characterized in that it has a configuration in which a pressing restriction portion is provided.

A second aspect of the present invention is characterized in that, in the first aspect of the present invention, a pair of the pressing restriction portions are provided on both sides of a center in the parallel direction of the terminals. A third aspect of the present invention is characterized in that, in the first or second aspect of the invention, the receiving portion is constituted by another contact piece provided in the respective terminals so as to face the contact piece. Having.

[0007]

Actions and effects of the present invention

<Invention of claim 1> When the camshaft is rotated to the release position, the contact piece of the terminal is pressed and flexed and deformed in the direction away from the receiving portion to widen the gap with the receiving portion. In the terminal corresponding to the provided portion, the contact piece does not bend or deform, or the amount of bending is slightly suppressed, so that the contact piece comes close to the receiving portion. When the sheet-shaped conductive path is inserted from such a state, the contact piece approaching the receiving portion is pushed in while being bent and deformed. Since only a part of the contact pieces is bent and deformed, a large insertion force is not required. Then, the sheet-shaped conductive path is temporarily held by sandwiching the sheet-shaped conductive path between the deformed contact piece and the receiving portion. Subsequently, when the camshaft is rotated to the holding position, all the contact pieces sandwich the sheet-like conductive path between the receiving portion and the sheet-like conductive path while the bending and deformation of the contact piece are restored. It is kept in contact with the piece. Since the sheet-like conductive path can be temporarily held in the retaining state after being inserted, it is not necessary to press the sheet-like conductive path each time the camshaft is rotated to the holding position, thereby simplifying the operation. In addition, it is possible to cope with a simple structure in which only a pressing restriction portion is provided on a part of the camshaft.

<Invention of Claim 2> When the sheet-shaped conductive path is inserted, resistance is received in a well-balanced manner, so that the sheet-shaped conductive path can be easily inserted straight. <Invention of Claim 3> When the camshaft is rotated to the holding position, both the front and back surfaces of the sheet-like conductive path are sandwiched by a pair of contact pieces in the terminal. It is possible to satisfactorily cope with the attachment of a sheet-shaped conductive path in which conductive paths are arranged on both front and back surfaces.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. <First Embodiment> A first embodiment of the present invention will be described with reference to FIGS. The connector of this embodiment is roughly a connector housing 1, a plurality of (four in this embodiment) terminals 2 housed in the connector housing 1, and an operation lever swingably attached to the connector housing 1. 3 and a cam rod 4 also serving as a swing axis of the operation lever 3. The sheet-shaped conductive path applied to the present embodiment is a double-contact type FPC ribbon cable 5 (shown in FIG. 5), which is provided on both front and back surfaces of a flexible band-shaped base film. It has a structure in which a plurality of conductive paths are formed at intervals by printed wiring means.

As shown in FIG. 1, the connector housing 1 is formed in a flat and horizontally long block shape by a synthetic resin material. At the center in the width direction on the front surface (the left front surface in FIG. 1) of the connector housing 1, a horizontally elongated insertion opening 8 reaching the rear surface while leaving the ceiling portion 6 and the bottom portion 7 is provided.
Are formed in a penetrating manner. The front edge of the ceiling portion 6 is recessed to a predetermined depth. The bearing recess 9 (FIG. 2) is located slightly behind the center in the depth direction on the upper surface of the bottom 7.
Is formed over the entire width. At the left and right end portions on the rear surface side of the connector housing 1, mounting recesses 11 are formed leaving a bottom plate, and are separated from the above-mentioned insertion opening 8 via a partition 12. In the ceiling portion 6 and the bottom portion 7 of the above-described insertion opening 8, four slits 14 shown in the front-rear direction, which are accommodation chambers of the terminal 2, are formed at intervals in the width direction.

The terminal 2 is formed by stamping a conductive metal plate. As shown in FIG. 4, the terminal 2 has a pair of upper and lower contact pieces 16 and 17 which are bifurcated and extend forward, and a print (not shown) is provided behind the lower contact piece 17. A lead portion 15 that is fixedly connected to the conductive path on the wiring board by soldering is provided continuously. The upper contact piece 16 of the pair of contact pieces 16 and 17
Is formed to be shorter than the lower contact piece 17, and at the tip thereof, a downward contact protrusion 18 having an oblique guide portion 19 formed on the front edge side is formed. On the other hand, at a position corresponding to the upper edge of the lower contact piece 17 immediately below the above-mentioned contact protrusion 18, a contact protrusion 20 is similarly provided, and in front of the contact protrusion 20, A guide portion 21 having a gentle downward slope is formed. The spacing between the contact projections 18 and 20 of the upper and lower contact pieces 16 and 17 is set to be slightly smaller than the thickness dimension of the ribbon cable 5 in a natural state. Also, the lower contact piece 1
A bearing recess 22 corresponding to the bearing recess 9 of the above-described insertion opening 8 is formed at the upper edge of the base side of 7.

The slit 14 corresponding to the terminal 2
4 from the rear (the right side in FIG. 4), and the abutting portions 24 and 25 provided on the upper and lower edges on the rear end side abut against the rear surface of the connector housing 1 so that the pushing is stopped.
Locking projection 26 provided slightly in front of upper abutment 24
However, by being cut into the wall surface of the slit 14 of the ceiling portion 6, it is housed in a retaining state. Here, the lower contact piece 17 is fixedly accommodated, and
Project from the bottom 7 of the insertion slot 8 (see FIG. 1). On the other hand, the upper contact piece 16 faces the lower end side of the slit 14 of the ceiling portion 6 and is capable of being bent upward. Also, the bearing recess 2 of the terminal 2
2 is aligned with the bearing recess 9 of the insertion port 8 and the lead 15
Project rearward at the bottom of the connector housing 1.

An operation lever 3 is swingably mounted on the rear side of the connector housing 1. The operating lever 3 is formed of a synthetic resin material. As shown in FIG. 1, the operating lever 29 is moved between the distal ends of the pair of arms 28 so as to straddle both the partition walls 12 of the connector housing 1. Shaped. The operation lever 3 is swingably supported via a cam rod 4 serving as a swing shaft.

The cam rod 4 functions to bend and deform the contact piece 16 on the upper side of the terminal 2 and has a length covering the entire width of the connector housing 1. In addition, the cross-sectional shape is formed in an approximately oval shape in which a large-diameter portion 30 is gently protruded from a part of a circular outer periphery. The diameter dimension passing through the large-diameter portion 30 is set to be larger than the interval between the roots of the contact pieces 16 and 17 of the terminal 2 by a predetermined dimension. 17 is set to be smaller than the interval on the base side.

[0015] Both partition walls 1 of the connector housing 1 described above.
As shown in FIG. 1, an insertion hole 32 for rotatably inserting the cam rod 4 is opened in each of the holes 2. Also,
A bearing hole 33 having the same oval cross section is formed at the base end side of both arm portions 28 of the operation lever 3 so that both ends of the cam rod 4 can be fitted.

When the operation lever 3 is assembled, the base end side of the arm portion 28 of the operation lever 3 is housed in the mounting recess 11, and the cam rod 4 is inserted into the bearing holes 33 of the both arm portions 28 and the insertion holes 32 of both the partition walls 12. Through. At this time, if one of the bearing holes 33 is forcibly fitted to the cam rod 4, the cam rod 4 is integrally assembled to the operation lever 3 without being shifted in the axial direction. The cam rod 4 inserted in this manner passes between the bases of the contact pieces 16 and 17 of each terminal 2 and is received by the bearing recess 9 of the connector housing 1 and the bearing recess 22 of the terminal 2.

The operating lever 3 assembled as described above
Is pivotally supported about the cam rod 4 between a holding position lying down as shown in FIG. 2 and a release position standing up as shown in FIG. 3 over an angle range of about 90 degrees. With the rotation of the operation lever 3, when the operation lever 3 is at the holding position shown in FIG. 2, the cam rod 4 takes a reclining posture in which the large-diameter portion 30 faces rearward. When in the release position of FIG.
Takes an upright standing position.

The large-diameter portion 30 is cut off at a portion of the cam rod 4 corresponding to the terminal 2 at the left end when viewed from the front, so as to have a circular cross section. This portion corresponds to the pressing restricting portion 35 according to the present invention.

This embodiment has the above-described structure,
Subsequently, the operation will be described. The terminal 2 is accommodated in the connector housing 1 in the manner described above, and the operation lever 3 is assembled via the cam rod 4. Normally, the operation lever 3 is stored, transported, and the like in a state of being swung to the holding position shown in FIG. The connector housing 1 is fixed at a predetermined position on the printed wiring board, and the lead 15 of each terminal 2 is connected to the corresponding conductive path of the printed wiring board by soldering.

The procedure for attaching the ribbon cable 5 to the connector housing 1 fixed to the printed wiring board as described above is as follows. First, from the state shown in FIG. 4, a finger is put on the operation section 29 to swing the operation lever 3 in the counterclockwise direction in FIG. 4 and brought to the release position as shown in FIG. When the operation lever 3 is swung to the release position, the cam rod 4 is turned to the upright posture. Then, as for the other three terminals 2 except for the terminal 2 at the left end, as shown in FIGS. 3A and 5A, the root portion of the upper contact piece 16 is pressed by the large diameter portion 30. As a result, the space between the contact protrusions 18 and 20 of the upper and lower contact pieces 16 and 17 is expanded to be greater than the thickness of the ribbon cable 5.

On the other hand, as shown in FIG. 3 (B) and FIG. 5 (B), the left end terminal 2 corresponds to the cut-off restricting portion 35 of the large-diameter portion 30 corresponding to the upper end. The contact piece 16 is kept in the original posture without receiving the pressing force, and the space between the contact projections 18 and 20 of the upper and lower contact pieces 16 and 17 is narrow.

From this state, the ribbon cable 5 is inserted from the front toward the insertion opening 8 of the connector housing 1.
The ribbon cable 5 is connected to both contact pieces 16 of each terminal 2,
The guide piece 19 is inserted between the guide sections 19 and 21 while being guided therebetween. The contact piece 16 on the upper side of the terminal 2 on the left end is inserted while being bent upward and deformed. The insertion is stopped when a predetermined amount is inserted. In this case, the contact protruding portions 18 and 20 of the upper and lower contact pieces 16 and 17 of the terminal 2 on the left end in the wired portion of the conductive path on the left end of the ribbon cable 5. As a result, the ribbon cable 5 is temporarily held in the retaining state.

Finally, the operation lever 3 is swung clockwise in FIG. 5 to bring it to the holding position shown in FIG. As a result, the cam rod 4 rotates to the reclined position and the large-diameter portion 30 escapes, so that the pressing force against the upper contact piece 16 is removed from the other three terminals 2 except for the left end. Contact piece 16 moves back to the original posture,
As a result, the contact projections 18 and 20 of all the terminals 2 bite the ribbon cable 5 while cutting into the conductive paths on the front and back of the ribbon cable 5. As a result, the ribbon cable 5 is held in a state of being electrically connected to the terminal 2.

On the other hand, when the ribbon cable 5 is detached, the operation lever 3 is swung from the state shown in FIG. 6 to the release position shown in FIG. The gap between the contact pieces 16 and 17 is widened to remove the clamping force, and the ribbon cable 5 can be detached from the connector housing 1 by pulling out the ribbon cable 5 against the clamping force of the left end terminal 2.

As described above, according to the present embodiment,
Since the ribbon cable 5 can be temporarily held in a retaining state after being inserted, it is not necessary to hold down the ribbon cable 5 when the operation lever 3 is rotated from the release position to the holding position. Can be. In addition, it is possible to cope with a simple structure in which a part of the cam rod 4 is provided with a pressing restriction part 35 from which the large diameter part 30 is removed.

<Second Embodiment> FIG. 7 shows a second embodiment of the present invention. In the second embodiment, the cam rod 4A
Press limiting portion 3 formed by cutting off large diameter portion 30 at
5 are formed in a pair corresponding to the positions of the terminals 2 at both ends of the terminals 2 arranged in parallel. Therefore, when the ribbon cable 5 is inserted, it is temporarily held by the terminals 2 at both ends. When the ribbon cable 5 is inserted, the resistance is balanced in the left and right directions, so that, for example, even when the number of poles is large and the ribbon cable 5 is wide, it can be inserted straight without tilting.

<Other Embodiments> The present invention is not limited to the embodiments described above and illustrated in the drawings. For example, the following embodiments are also included in the technical scope of the present invention. In addition, various changes can be made without departing from the scope of the invention. (1) The present invention can be similarly applied to a connector for a single contact type ribbon cable in which a conductive path is provided only on one surface side. In this case, it is necessary to provide a receiving portion on one side of the insertion opening of the connector housing so as to face the contact piece of the terminal.

(2) The present invention can be similarly applied to a flat cable connector in which a plurality of round conductive wires are juxtaposed and resin films are laminated on both front and rear surfaces to form a strip. It is possible. (3) The position of the camshaft is arbitrary as long as it can be engaged with the contact piece of the terminal and does not hinder the insertion of the sheet-like conductive path.

[Brief description of the drawings]

FIG. 1 is a partially cutaway exploded perspective view according to a first embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view in a state where an operation lever is at a holding position.

FIG. 3 is a partially cutaway perspective view showing a state where an operation lever is at a release position.

FIG. 4 is a sectional view showing a state before a ribbon cable is inserted.

FIG. 5 is a sectional view showing a state where a ribbon cable is inserted.

FIG. 6 is a cross-sectional view showing a state where a ribbon cable is held.

FIG. 7 is a perspective view showing a shape of a cam rod according to a second embodiment of the present invention.

FIG. 8 is a sectional view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Connector housing 2 ... Terminal 3 ... Operation lever 4 ... Cam rod (cam shaft) 5 ... Ribbon cable (sheet-shaped conductive path) 14 ... Slit 16 ... Upper contact piece 17 ... Lower contact piece (receiving part) 18 ... Contact projection 20 Contact projection 30 Large diameter part 35 Press limiting part 4A Cam rod

Claims (3)

[Claims] 1. A connector housing in which a plurality of terminals having contact pieces extended in a flexible manner so as to be in contact with a sheet-like conductive path are housed side by side, and are opposed to the contact pieces of each terminal. A receiving portion provided, and a camshaft disposed so as to cross the vicinity of each of the contact pieces and rotatably operated around an axis between a release position and a holding position. When pivoted to the release position,
The contact piece of the terminal is pressed to bend and deform in a direction away from the receiving portion to allow the insertion and removal of the sheet-like conductive path, and when the cam shaft is rotated to the holding position, the contact piece is A sheet-like conductive path connector in which the sheet-like conductive path is sandwiched between the receiving portion and the holding section so as to be held in contact with the receiving section, wherein the camshaft is provided at a part of the camshaft at the release position. A contact restricting portion which is in a non-pressed state or a state in which the amount of pressing is limited with respect to the contact piece of the terminal even when the connector is rotated. 2. The sheet-like conductive path connector according to claim 1, wherein a pair of said pressing restriction portions are provided on both sides of a center of said terminals in a parallel direction. 3. The sheet-like sheet according to claim 1, wherein the receiving portion is constituted by another contact piece provided in the respective terminals so as to be opposed to the contact piece. Conductive path connector.