JPH0935792A - Clip device for flexible board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make contact resistance constant by connecting a metallic terminal pin and a flexible board to each other in the condition of stable contact pressure. SOLUTION: For a first fixing member 10 and a second fixing member 20 for fixing a flexible board from above and below, the contact parts 16 and 28 are made to pressure-contact with each other by facing several support pieces 12 and 22 to each other, and inserting a pivot 30A into the insertion holes 13 and 33, and attaching a compressed coil spring 40 between spring engaging parts 15 and 26. The flexible board 50 is inserted until it abuts on the stopper 14 when the first fixing member and the second fixing member are pressed in the direction of resisting the elastic force of the coil spring 40, and is fixed, with the contact pressure surely fixed by the contact parts 16 and 28.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clip device used for electrically connecting a flexible substrate, which is an inspected component such as an electric product, and an inspection device for inspecting the flexible substrate.

[0002]

2. Description of the Related Art In a so-called portable electric product such as a portable recording / reproducing apparatus, a space between electric circuits constituting the electric product is relatively inexpensive and space-saving in order to miniaturize the electric product and reduce the price. It is often connected using a flexible substrate that can be connected. The flexible substrate is electrically connected to the inspection device through a connection device that can be easily attached and detached when each component is inspected or adjusted in the manufacturing process of the portable electric product. At this time, the inspection device
As a connection device that can be easily attached and detached, there is provided a clip device that is a combination of a member in which metal terminal pins are arranged in a row or in a staggered manner at the same interval as the interval between terminals of a flexible board to be inspected, and a member that is paired with the member.

Specifically, as shown in FIG. 9, the clip device 200 has a first fixing member 210 for fixing a flexible substrate (not shown) by sandwiching it from the vertical direction.
And a second fixing member 220, a support shaft 230A for rotatably supporting the first fixing member 210 and the second fixing member 220, the first fixing member 210 and the second fixing member 220. And a coil spring 240 for urging the flexible substrate with the support shaft 230A as a fulcrum so as to sandwich the flexible substrate.

The first fixing members 210 are provided on the opposite side edges near the center of the prismatic base body 211, respectively.
A pair of support pieces 212A and 212B are integrally provided so as to project downward. This pair of support pieces 212A, 212B
Through hole 2 for inserting the support shaft 230A in the center of the
13A and 213B are formed with their axes aligned. Further, on the lower surface of the base portion 211, a block-shaped stopper 214 for determining the position where the flexible substrate is inserted is integrally provided. The stopper 214 is formed so as to be orthogonal to the longitudinal direction of the base portion 211. Further, on the lower surface of the base portion 211, the support pieces 212A,
212B is provided with a spring engaging portion 215 located on the opposite side of the stopper 214 for fixing one end of the coil spring 240.

The second fixing member 220 has a pair of support pieces 22 at the opposite edges of the prism-shaped base body 221 which is slightly smaller than the base body 211 described above and in the vicinity of the center thereof.
2A and 222B are integrally provided so as to project upward. At the central portions of the pair of support pieces 222A, 222B, insertion holes 223A, 2 for inserting the support shaft 230A are formed.
23B is formed with the axes aligned. A terminal insertion hole 224 is formed at one end of the base portion 221 in the vertical direction corresponding to a metal terminal pin 226 described later. A spring engagement portion 225 is provided on the upper surface of the second fixing member 220 so as to face the spring engagement portion 215 of the first fixing member 210. A metal terminal pin 226 electrically connected from an inspection device (not shown) is fitted into the terminal insertion hole 224. The metal terminal pin 226 is exposed to the upper side surface of the base portion 221 so that the upper end contacts the terminal of the flexible substrate, and the lower end connects the lead wire 227 to connect the terminal of the flexible substrate and the inspection device. Has been done.

The clip device 20 configured as described above
0, for example, as shown in FIG. 10, the first fixing member 210 and the second fixing member 220 have the support piece 212A.
The support piece 222A and the support piece 212B and the support piece 222B are assembled to face each other. The support shaft 230A has insertion holes 213A, 223A, 223 whose support shafts are aligned.
The first fixing member 210 and the second fixing member 2 are inserted into the first fixing member 210 and the second fixing member 2 by being stopped by the retaining ring 230B.
20 and 20 are rotatably supported. The coil spring 240 is compressed and attached to the spring engaging portions 215 and 225 of the first fixing member 210 and the second fixing member 220, respectively, to bring the metal terminal pin 226 into pressure contact with the lower surface of the first fixing member 210. .

This clip device 200, as shown in FIG. 10, has a first fixing member 210 and a second fixing member 220.
When a force in the direction of the arrow is applied to one end side of the coil spring 240 against the elastic force of the coil spring 240, the first fixing member 210 rotates counterclockwise and the second fixing member 220 rotates clockwise. It rotates about the support shaft 230A. As a result, the first fixing member 210 and the second fixing member 220 on the metal terminal pin 226 side are opened, and the metal terminal pin 226 is exposed from the opening (hereinafter referred to as “flexible substrate insertion opening”).

The flexible substrate is inserted into the clip device 200 from the opened flexible substrate insertion opening along the lower surface of the first fixing member 210 until the flexible substrate comes into contact with the stopper 214. This flexible substrate includes a first fixing member 210 and a second fixing member 2.
When the force applied to 20 is released, the coil spring 2
The elastic force of 40 sandwiches and fixes the lower surface of the first fixing member 110 and the metal terminal pin 226. At this time, the metal terminal pin 226 is in contact with the printed wiring of the flexible substrate 250 and is electrically connected to the inspection device via the lead wire 27.

[0009]

By the way, with the miniaturization of products and the high density of circuit boards, the flexible board is designed to have a narrow pattern interval, such as 0.5 mm. . In particular, in a clip device 200 for a product such as an optical pickup device or a magnetic head where a minute signal is handled, the pickup device, which is a connection target, is connected to the inner peripheral portion of the optical disc so that the contact resistance is several tens of milliohms or less. Even if the flexible substrate moves toward the outer peripheral portion, it must be held securely so that the flexible substrate does not move and the contact resistance does not change.

In the conventional clip device 200, as described above, the flexible board is sandwiched by the first fixing member 210 and the metal terminal pin 226 on the second fixing member 220 side, and the metal terminal pin 226 and the flexible board are separated from each other. Are mechanically held and electrically contacted. Therefore, according to the conventional clip device 200, when the flexible board is firmly held by preventing the floating board, the flexible board and the metal terminal pin 2
Since the contact resistance with 26 becomes large, and when the contact resistance is made small, there is a problem that the flexible substrate floats and a good inspection result cannot be obtained.

Further, in the conventional clip device 200, when the number of the metal terminal pins 226 is small, the mechanical holding force is insufficient, and the metal terminal pins move as the pickup device of the connected body moves. The contact portion tends to become unstable due to the movement of the connection portion between 226 and the pattern. Therefore, in the conventional clip device 200, the connection position with the flexible board is adjusted so as not to affect the connection part between the metal terminal pin 226 and the flexible board even when the pickup device or the like is moved, and the stable connection is achieved. Measures have been taken such as checking the condition and conducting inspections.

Therefore, the present invention solves the problems of the conventional clip device, and connects the metal terminal pin and the flexible substrate in a state of stable contact pressure, thereby providing a high density for a miniaturized product. The present invention has been proposed for the purpose of providing a clip device suitable for use in inspecting a flexible substrate that has been made into a compact product and a product in which minute signals are handled.

[0013]

In order to solve the above-mentioned problems, the flexible board clip device according to the present invention is
The whole is in the shape of a rectangular block, the fixed part of the flexible substrate is integrally formed on the opposite side surfaces of one end, and it is penetrated by the integrally formed fulcrum located at the approximate center in the longitudinal direction. A first fixing member and a second fixing member that are rotatably combined with each other via a support shaft, and are attached to the other end portions of the first fixing member and the second fixing member that are combined with each other. An elastic member that imparts a contact habit to opposing fixing portions, and a metal terminal pin having a terminal portion on one end side that is located on the fulcrum portion side with respect to the fixing portion is provided on at least one fixing member side. . On the other hand, the terminal portion of the metal terminal pin is connected to the terminal portion of the flexible substrate with the flexible substrate sandwiched and fixed between the fixing portion of the first fixing member and the fixing portion of the second fixing member. Has become.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of a clip device to which the present invention is applied will be described below with reference to the drawings.

A clip device 1 to which the present invention is applied, for example, as shown in FIG. 1, includes a first fixing member 10 and a second fixing member 20 for fixing a flexible substrate, which will be described later, from above and below, and a first fixing member 20. 30A for rotatably supporting the fixing member 10 and the second fixing member 20, and the first fixing member 10 and the second fixing member 20 with the supporting shaft 30A as a fulcrum. And a coil spring 40 for urging the coil spring in a direction in which the coil spring is sandwiched.

The first fixing member 10 is a prismatic base portion 1
1. A pair of support pieces 12 are provided on opposite sides of the edge of the sheet 1 near the center.
A and 12B are integrally provided so as to project downward. At the center of the pair of support pieces 12A, 12B,
Insertion holes 13A and 13B for inserting the support shaft 30A are provided with their axes aligned. Further, a block-shaped stopper 14 for integrally determining a position for inserting the flexible substrate is integrally provided on the lower surface of the base portion 11 so as to project.
The stopper 14 is formed so as to be orthogonal to the longitudinal direction of the base portion 11. Similarly, a spring engaging portion 25 for fixing one end of the coil spring 40 is provided on the lower surface of the base portion 11 on the opposite side of the stopper 14 with respect to the support pieces 12A and 12B.

The second fixing member 20 is the base portion 1 described above.
A pair of support pieces 22A and 22B are respectively provided in the height direction so as to project on the opposite edges of the prism-shaped base portion 21 which is slightly smaller than 1 in the vicinity of the center. These support pieces 22
Insertion holes 23A and 23B for inserting the support shaft 30A are provided in the central portions of the A and 22B with their axes aligned. Further, a block-shaped fixing portion 24 is provided on one end of the upper surface of the base portion 21. Support pieces 22A, 22B
In the base portion 21 between the fixing portion 24 and the fixing portion 24, the terminal insertion hole 25
Are formed in the up-down direction corresponding to the metal terminal pins 27 described later. A spring engagement portion 25 is provided on the upper surface of the base portion 21 so as to face the spring engagement portion 15 of the first fixing member 10. In addition, the metal terminal pin 2 electrically connected to the inspection device (not shown) is provided in the terminal insertion hole 25 described above.
7 is fitted from below the base portion 21. The metal terminal pin 27 has an upper surface (hereinafter referred to as “contact portion”) 28 of the fixing portion 24 so that an upper end portion thereof contacts a terminal of the flexible substrate.
And the lower end is electrically connected to the lead wire 29 from the inspection device.

In the clip device 1 constructed as described above, the first fixing member 10 and the second fixing member 20 are, for example, as shown in FIG.
2A, the support piece 12B and the support piece 22B are opposed to each other, and the respective insertion holes 13A and insertion holes 23A,
The insertion hole 13B and the insertion hole 23B are assembled so as to overlap each other. The support shaft 30A has an insertion hole 13 whose axis is aligned.
The first fixing member 10 and the second fixing member 20 are rotatably supported by being inserted through A, 23A, 23B, and 13B. A thread groove is cut at the end of the support shaft 30A, and the support shaft 30A is tightened by a retaining ring 30B. The coil spring 40 is compressed and attached to the spring engaging portions 15 and 26 of the first fixing member 10 and the second fixing member 20, respectively, and the contact portion 28 of the second fixing member 20 and the first fixing member. The lower surface of 10 is urged so that a portion (hereinafter referred to as “contact portion”) 16 facing the contact portion 28 comes into contact.

In the clip device 1 thus constructed, as shown in FIG. 3, arrows are formed on one end side of the first fixing member 10 and the second fixing member 20 against the elastic force of the coil spring 40. When a force in the direction of is applied, the first fixing member 1
0 rotates counterclockwise, and the second fixing member 20 rotates clockwise about the support shaft 30A. as a result,
The first fixing member 10 and the second fixing member 20 have the support shaft 3
The contact portions 16 and 28 are pivotally opened with 0A as a fulcrum, and the metal terminal pin 27 is exposed from the opening (hereinafter referred to as "flexible substrate insertion opening").

In this clip device 1, the flexible substrate 50 is inserted from the opened flexible substrate insertion opening along the lower surface of the base portion 11 until it abuts on the stopper 14. When the force applied to the first fixing member 10 and the second fixing member 20 is released, the flexible substrate 50 is released by the elastic force of the coil spring 40 as shown in FIG. It is fixed by being sandwiched between the contact portion 16 of 10 and the contact portion 28 of the second fixing member 20. At this time, the metal terminal pin 27 contacts the printed wiring of the flexible substrate 50 and is electrically connected to the inspection device via the lead wire 29.

That is, in this clip device 1, since the flexible substrate 50 is fixed by the contact portion 16 and the contact portion 28, the contact state between the printed wiring and the metal terminal pin 27 does not change even if the flexible substrate 50 moves. Therefore,
Since the contact resistance due to the contact pressure between the printed wiring and the metal terminal pin 27 does not change, stable inspection can always be performed. This clip 1 is particularly troublesome when re-inspecting by reconnecting the connection that has been conventionally performed when handling a minute signal that cannot be inspected unless the electric resistance is kept low or when the inspected component moves during the inspection. Therefore, the inspection time can be shortened.

Next, a second embodiment of the clip device to which the present invention is applied will be described.

As shown in FIG. 5, for example, the clip device 100 includes a first fixing member 110 and a second fixing member 120 for fixing a flexible substrate described below from above and below, and a metal terminal pin described below. An upright terminal board 130, a pair of support plates 140 that support the first fixing member 110 and the second fixing member 120, and a support shaft 150A that rotatably supports the first fixing member 110. And the first fixing member 110 and the second fixing member 120
And a coil spring 160 for urging the flexible substrate so as to sandwich the flexible substrate with 50A as a fulcrum.

In the first fixing member 110, a block-shaped support portion 112 is integrally provided in the vicinity of the center of a prismatic base portion 111. The support portion 112 includes a support shaft 150A.
An insertion hole 113 for inserting the through hole is formed. A block-shaped first fixing portion 114, which is slightly larger than the support portion 112, is provided on one end side of the lower surface of the base portion 111. On the lower surface of the base portion 111, the coil spring 1 is located on the side opposite to the first fixing portion 114 with respect to the support portion 112.
A spring engaging portion 115 for fixing one end of 60 is provided.

The second fixing member 120 has a support portion 1 near the center of the upper surface of the prismatic base portion 121 when the first fixing member 110 and the second fixing member 120 are combined.
A stopper 122 formed of a small prism is integrally provided so as to be located in a gap between the first fixing portion 114 and the second fixing portion 114. The stopper 122 is formed so as to be orthogonal to the longitudinal direction of the base 121. The upper surface of the base portion 121 has the first fixing portion 114 with the stopper 122 as a boundary.
A portion (hereinafter, referred to as a “second fixing portion”) 123 facing to is located above the other portion. The second fixing portion 123 is provided with a terminal insertion hole 124 corresponding to a metal terminal pin 132 described later. A spring engaging portion 125 is provided on the upper surface of the base portion 121 so as to face the spring engaging portion 115 of the first fixing member 110. Stopper 12
The screw holes 1
26A and 126B are provided, and screw holes 127A and 127B are provided on the front surface and the back surface of the base 121 in the vicinity of the spring engaging portion 125, respectively.

The terminal board 130 has a second fixing member 120.
The metal terminal pins 132 are respectively attached to the plate-like substrate 131 having the same size as the lower surface of the base 121 of the substrate 13.
1 is erected upright. The upper portion of the metal terminal pin 132 is slightly longer than the length of the terminal insertion hole 124, while the lower portion is the lead wire 1 from the inspection device (not shown).
It is electrically connected to 33.

The support plates 140A and 140B are plate-shaped pieces each having a substantially rectangular shape with one large corner cut out.
The support plate 140A has a support shaft insertion hole 141A for inserting the support shaft 150A and allowing the first fixing member 110 to rotate.
And set screw insertion holes 142A and 143A for inserting the set screws 151A and 152A. On the other hand, similarly, the support plate 140B also has a support shaft insertion hole 141 for inserting the support shaft 150A and allowing the first fixing member 110 to rotate.
B and set screw insertion holes 142B and 143B for inserting the set screws 151B and 152B are provided.

Clip device 10 constructed as described above
At 0, as shown in FIG. 6, for example, the second fixing member 120 is bonded to the terminal board 130 by inserting the metal terminal pins 132 into the terminal insertion holes 124. Then, in the second fixing member 120, the set screws 151A, 151B, 152A, 152B are inserted into the set screw insertion holes 142A, 142B, 143A, 143B and screwed into the screw holes 126A, 126B, 127A, 127B. , Support plates 140A, 140
It is fixed to B. The support shaft 150A includes the support shaft insertion hole 141A of the support plate 140A and the insertion hole 11 of the first fixing member 110.
3 and the support shaft insertion hole 141B of the support plate 140B are inserted, and the first fixing member 110 is rotatably supported. The tip of the support shaft 150A is tightened by a retaining ring 150B. The coil spring 160 includes the first fixing member 11
0 and the spring engaging portion 11 of each of the second fixing member 120.
5, 125 is compressed and attached, and the first fixing portion 114 of the first fixing member 110 and the second fixing portion 123 of the second fixing member 120 are brought into pressure contact with each other.

The clip device 100 configured as described above
Then, as shown in FIG. 7, the first fixing member 110 and the second fixing member 110
When a force in the direction of the arrow is applied to one end side of the fixing member 120 of No. 1 against the elastic force of the coil spring 160, the first fixing member 110 is rotated counterclockwise, and the first fixing member 110 is rotated counterclockwise.
Rotate in the clockwise direction around the support shaft 150A. As a result, in the first fixing member 110 and the second fixing member 120, the contact portions 16 and 28 side are pivotally opened, and the metal terminal pin 132 is exposed from the opening (hereinafter referred to as “flexible substrate insertion opening”). .

In this clip device 100, as shown in FIG. 7, the flexible board 180 is inserted from the opened flexible board insertion opening along the upper surface of the second fixing portion 123 until it comes into contact with the stopper 122. The flexible substrate 180 includes a first fixing member 110 and a second fixing member 110.
When the force applied to the fixing member 120 of is released,
As shown in FIG. 8, the coil spring 160 is sandwiched and fixed by the first fixing portion 114 and the second fixing portion 123 by the elastic force of the coil spring 160. At this time, the metal terminal pin 132 contacts the printed wiring of the flexible substrate 180, and the lead wire 133
Is electrically connected to the inspection device via.

That is, the inspection device using the clip device 100 having the above-described structure is the flexible substrate 18
A portion for fixing 0, that is, the first fixing portion 114 and the second
Since the fixing portion 123 is wide, the flexible substrate 180 and the inspection device can be electrically connected to each other without changing the contact pressure between the metal terminal pin 132 and the flexible substrate 180. That is, in the clip device 100, the contact resistance of the contact portion between the flexible substrate 180 and the metal terminal pin 132 can be more reliably kept constant,
For example, it is possible to more surely inspect a minute signal from the flexible substrate 180.

Further, since the terminal board 130 can be attached to and detached from the second fixing member 120, if the tip of the metal terminal pin 226 is worn out by repeatedly using the clip device 100, it can be replaced. . That is, the clip device 100 can replace the consumable parts, so that the replacement of the clip device due to a simple consumption of a part can be avoided, and the cost can be reduced.

The second fixing member 120 and the terminal board 1
30 may be integrated in advance, or the second fixing member 120 may be provided with a metal terminal pin 132 in advance.

[0034]

As described above in detail, in the clip device to which the present invention is applied, the contact pressure between the flexible board and the metal terminal pin is made constant by widening the portion that contacts and fixes the flexible board. be able to. That is, since this clip device can make the contact resistance of the contact portion between the flexible substrate and the metal terminal pin constant, for example, when electrically connected to the inspection device, a minute signal such as a component to be inspected is transmitted. It can be taken out reliably.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a flexible board clip device according to a first embodiment of the present invention.

FIG. 2 is a side view of the clip device.

FIG. 3 is a side view of the clip device when opened.

FIG. 4 is a side view when the clip device sandwiches a flexible substrate.

FIG. 5 is an exploded perspective view of a flexible board clip device according to a second embodiment of the present invention.

FIG. 6 is a side view of the clip device.

FIG. 7 is a perspective view of a main part when the clip device is opened.

FIG. 8 is a side view when the clip device sandwiches a flexible substrate.

FIG. 9 is an exploded perspective view of a conventional clip device.

FIG. 10 is a side view of the clip device.

[Explanation of symbols]

 1 Clip Device 10 First Fixing Member 12 Supporting Piece 13 Insertion Hole 14 Stopper 20 Second Fixing Member 22 Supporting Piece 23 Insertion Hole 27 Metal Terminal Pin 30A Spindle 40 Coil Spring

Claims (4)

[Claims] 1. A fulcrum having a rectangular block shape as a whole, a fixing portion of a flexible substrate being integrally formed on opposite side surfaces of one end portion and being integrally formed at a substantially central portion in a longitudinal direction. A first fixing member and a second fixing member that are rotatably combined with each other via a support shaft that penetrates the portion, and the other ends of the first fixing member and the second fixing member that are combined with each other. An elastic member that is assembled to the fixed portion and imparts a contact habit to the opposing fixed portion, and a terminal portion on one end side that is located on the fulcrum portion side with respect to the fixed portion on at least one of the fixed member sides. A metal terminal pin is provided, and the terminal portion of the metal terminal pin is connected to the terminal portion of the flexible substrate in a state where the flexible substrate is sandwiched and fixed between the fixing portion of the first fixing member and the fixing portion of the second fixing member. Flexibe characterized by being Clip device for printed circuit boards. 2. The second fixing member is provided with a terminal insertion hole which is located on the fulcrum side with respect to the fixing portion and through which the metal terminal pin is inserted, and the metal terminal pin is erected on the lower surface portion. The flexible printed circuit board according to claim 1, wherein the printed circuit board is assembled, and the metal terminal pin penetrates through the terminal insertion hole to expose the terminal portion on the fixed portion side of the second fixing member. Clip device 3. A stopper is integrally projectingly provided on a side surface portion facing one of the fixing members on the side of one of the fixing members, and the stopper includes the fixing portion of the first fixing member and the second fixing member. 3. The flexible board according to claim 1 or 2, wherein the flexible board sandwiched between the fixing portion of the member is defined at a connection position between the terminal portion and the terminal portion of the metal terminal pin. Clip device. 4. The first fixing member and the second fixing member are rotatably combined with each other via a pair of opposing supporting members. The clip device for a flexible substrate according to any one of items.