JPH0828137B2 - Flat cable with wire holder - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat cable used for a television receiver or the like.

[0002]

2. Description of the Related Art Conventionally, when connecting a flat cable to a printed circuit board of a television receiver or the like, first, a wire holder 1 is attached to the printed circuit board 2 as shown in FIG. 7, and the wire holder 1 as shown in FIG. Insert the flat cable 3 into the flat cable 3 as shown in Fig. 9.
While being inserted into the wire holder 1, the solder is passed through a solder dip tank (not shown).

In order to perform the solder dip, the pitch between the adjacent conductors of the flat cable 3 is required to be at least 1.5 mm in the present technology. Therefore, it is necessary to widen the flat cable 3 in which the pitch between the adjacent conductors is 1.25 mm, and the wire holder 1 is used for this purpose. In the above-mentioned conventional one, when the flat cable 3 is inserted into the wire holder 1, the flat cable 3
The tip (conductor exposed portion) of the is formed in a puddle shape to widen the pitch of 1.25 mm to 2.5 mm.

[0004]

Since the conventional flat cable is connected to the printed circuit board by using the wire holder, the wire holder 1 needs to be attached to the printed circuit board 2 in advance as the connecting step, and the number of steps increases. However , when inserting the flat cable 3 into the wire holder 1, a force for forming the conductor in a puddle shape is required, which makes it difficult to insert the conductor. In particular, there is a problem that the conductor is thick and the number is large. Further, as shown in FIG. 9, when the flat cable 3 is inserted into the wire holder 1 and is not locked with each other, the flat cable 3 is detached from the wire holder 1 or floats in the solder dipping step or before and after the solder dipping step. There is a problem that the solder dip lacks reliability.

The present invention has been made to solve the above problems. Since the wire holder is delivered to the connecting step in the state of a flat cable with a wire holder in which the wire holder is temporarily inserted, the wire holder is attached to the printed circuit board and flat at the same time. The main insertion of the cable is possible, and the conductor exposed part of the flat cable is formed into a puddle shape before the temporary insertion, so the flat cable can be easily loaded on the wire holder regardless of the size and number of conductors. Since the flat cable can be inserted, and the flat cable is locked to the wire holder in the state of the temporary insertion and the main insertion, respectively, the flat cable does not come off from the wire holder or float during the solder dipping step or the steps before and after the solder dipping step. With wire holder for high solder dip And to obtain a flat cable.

[0006]

SUMMARY OF THE INVENTION A flat cable with a wire holder according to the present invention is provided with a bare conductor.
The end of the flat cable
Do not insert to the temporary insertion position in the through hole of the wire holder.
A flat cable with a wire holder that
Engagement with two facing holes on both sides of the through hole of the wire holder
Attached to the stop and one side of the end of the flat cable
And, at the temporary insertion position, the tape end is attached to one of the locking portions.
And the other side of the end part
Affixed to the flat cable from the temporary insertion position.
Book that is further inserted into the through hole of the wire holder
At the insertion position, the tape end engages with the other of the locking portions.
The present insertion stop tape is provided .

[0007]

According to the present invention, the end portion of the flat cable is inserted into the through hole of the wire holder before the wire holder is attached to the substrate, and the temporary insertion state in which the engaging portion engages with the end of the temporary insertion stopper tape is maintained. this was, after attaching the provisional insertion state wire holder on the substrate, further pushed by the flat cable of the temporary insertion condition into the wire holder
The main insertion state in which the locking portion engages with the end of the insertion stopper tape is maintained.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a plan view showing a state before insertion, and FIG. 2 is FIG.
3 is a vertical sectional side view of a main part of FIG. 5, FIG. 3 is a plan view showing a temporary insertion state, FIG. 4 is a vertical sectional side view of a main part of FIG. 3, FIG. It is a side view, and the same or corresponding parts as those of the conventional device are designated by the same reference numerals and the description thereof is omitted.

In the figure, reference numeral 4 is a heat-sealing tape formed by arranging a plurality of resin-insulated electric wires (2 to 60) side by side and adhering them at various places in the longitudinal direction thereof to form a flat cable 3, and 5 is a flat tape. Conductor stripping parts that are formed into a puddle shape by pressing on the end of the cable 3, 6 and 7 are long and short tapes attached to both ends of the flat cable 3, respectively. Are arranged in different lengths. Reference numeral 8 is a locking portion provided on both surfaces of the through hole 1a of the wire holder 1 so as to face each other, and the end portions of the tapes 6 and 7 are engaged with each other.

Next, the case where the flat cable 3 is connected to the printed circuit board 2 will be described. First, before attaching the wire holder 1 to the printed circuit board 2, the end portion of the flat cable 3 is inserted into the through hole 1a of the wire holder 1 in the direction shown by the arrow 9 in FIGS. As shown in, the wire holder 1 is held at the end of the flat cable 3 in a temporary insertion state in which the locking portion 8 can be engaged with the end of the tape 6 on the short side. In the temporary insertion state shown in FIGS. 3 and 4,
Since the end of the sheet 6 engages with the locking portion 8 and is locked with the conductor bare portion 5 slightly protruding, the flat cable 3
The wire holder 1 does not fall off. In this way, the wire holder 1 is temporarily inserted into the end portion of the flat cable 3 to be a product (flat cable with a wire holder) and delivered to the set manufacturer.

At the set manufacturer, the flat cable with the wire holder in which the wire holder 1 is temporarily inserted is
The wire holder 1 is attached to the printed board 2 in the direction shown by the arrow 10 in FIGS.
When the wire holder 1 is fixed to the printed circuit board 2, the flat cable 3 in the temporarily inserted state is further pushed into the wire holder 1, and as shown in FIGS.
The locking portion 8 is engaged with the end to be in the main insertion state, and the conductor bare portion 5 of the flat cable 3 is connected to the printed board 2. In the main insertion state shown in FIGS. 5 and 6, the wire holder 1 is locked to the printed board 2, and the flat cable 3 is further fixed to the wire holder 1 by the long side tape 7.
Therefore, the wire holder 1 and the flat cable 3 do not come out of the printed circuit board 2 and are not dropped.

As described above, in the set maker, the wire holder 1 is delivered with the wire holder 1 temporarily inserted in the end portion of the flat cable 3, so that the wire holder 1 is attached to the printed circuit board 2 and the flat cable 3 is connected at the same time. Complete. Therefore, the man-hours at the set maker can be reduced.

Further, since the conductor stripping portion 5 of the flat cable 3 is formed into a puddle shape by pressing before the wire is temporarily inserted into the wire holder 1, the operator can flatten the flat cable regardless of the size and number of conductors. 3 can be easily inserted into the wire holder 1 without load.

Further, since the flat cable 3 and the wire holder 1 are locked with each other in the state of temporary insertion and main insertion, the flat cable 3 is held in the wire holder in the solder dipping step or before and after the step. There is no phenomenon that it deviates from 1 or floats.

[0015]

As described above, according to the present invention, the flat cable with the wire holder in which the wire holder is temporarily inserted is delivered to the connecting step, so that the wire holder is attached to the printed circuit board and the flat cable is fully inserted at the same time. Moreover, since the conductor exposed portion of the flat cable is formed into a puddle shape before the temporary insertion, the flat cable can be easily inserted into the wire holder without load, regardless of the size and number of conductors. Since the flat cable is locked to the wire holder in the state of temporary insertion and main insertion, respectively, a highly reliable solder dip that does not cause the flat cable to come off or float in the solder dipping step or the steps before and after the solder dipping step. It has the effect of being obtained.

[Brief description of drawings]

FIG. 1 is a plan view of a state before insertion showing an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional side view of a main part of FIG.

FIG. 3 is a plan view showing a temporarily inserted state.

FIG. 4 is a vertical sectional side view of a main part of FIG.

FIG. 5 is a plan view showing a main insertion state.

FIG. 6 is a vertical sectional side view of a main part of FIG.

FIG. 7 is a plan view showing a conventional wire holder.

FIG. 8 is a plan view showing a conventional flat cable.

FIG. 9 is a plan view showing a connected state of a conventional flat cable.

[Explanation of symbols]

 1 Wire Holder 1a Through Hole of Wire Holder 2 Printed Circuit Board 3 Flat Cable 4 Thermal Bonding Tape 5 Stripped Conductor 6 Short Side Tape 7 Long Side Tape 8 Locking Section

Claims (1)

[Claims] 1. A flat cable with a wire holder, which is obtained by inserting an end portion of a flat cable formed by forming a stripped conductor into a puddle shape to a temporary insertion position in a through hole of the wire holder. Two locking parts provided opposite to each other on both sides of the through-hole, and a temporary tape which is attached to one surface of the end portion of the flat cable and whose tape end is engaged with one of the locking parts at the temporary insertion position. An insertion stopper tape, which is also attached to the other surface of the end portion, and the tape is attached to the other side of the locking portion at the main insertion position where the flat cable is further inserted into the through hole of the wire holder from the temporary insertion position. A flat cable with a wire holder, comprising: a main insertion stop tape whose ends engage.