JPS6023899Y2 - printed wiring board - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a printed wiring board in which lead core wire protruding end insertion holes are formed at corresponding positions for fixing a large number of lead core wire protruding ends of a multicore parallel wire body.

Conventionally, it is often thought that it is an extremely simple task to simultaneously insert and secure a large number of lead core wire protruding ends into the lead core wire protrusion end insertion holes that are drilled in printed wiring boards, but in reality, it is difficult to do so. In order to do this, all of the protruding ends of the many lead core wires of one multi-core parallel wire body should be aligned with the corresponding holes, and the work of pressing and inserting them is a non-trivial task that causes severe visual nerve fatigue for the worker. Although this work is efficient, if even one of the many protruding ends of the lead core wire does not fit into the corresponding hole, the multi-core parallel wire body cannot be inserted and fixed.

In addition, in order to prevent insertion even if there is a protruding end of the lead core wire whose position and shape are not accurate, the thickness of all the holes drilled in the printed wiring board should be far greater than the thickness of each of the protruding ends of the lead core wire to be inserted. If the opening is made larger, it will be easier to insert all the protruding ends of the lead core wires at the same time, but since there is no pressure welding part, there is a drawback that they are likely to come off or come up before the next solder dip is applied.

The present invention is a printed wiring board that allows the protruding ends of a large number of lead core wires of a multicore parallel wire body to be easily and securely inserted into corresponding holes.

Next, embodiments of the present invention will be described with reference to the drawings.

As shown in FIGS. 1 and 2, the embodiment of the present invention has a large number of printed wiring board 2 corresponding to a large number of lead core protruding ends 11 of a multicore parallel wire body 1 to be inserted and fixed. Hole 3
is made large enough to facilitate simultaneous insertion even if the tip position of the lead core wire protruding end portion 11 is slightly shifted in the insertion lateral direction, and the number of holes 3 inserted into each of the plurality of holes 3 is large enough to facilitate simultaneous insertion. A slit 4 is provided in which the protruding ends 11 of the lead core wires can be moved laterally at the same time and temporarily fixed.

As shown in FIG. 3, the multicore parallel wire body 1 is lowered from the state shown in FIG. It is held between the narrow width of the slit 4 and temporarily fixed in the state shown by dotted lines in FIGS. 2 and 3.

In the subsequent solder dipping operation, all of the temporarily fixed lead core protruding ends 1 □ are soldered and fixed to the printed wiring board 2 while being held in the slits 4 (not shown). The wiring is joined.

FIG. 4 shows how many slits 41 are inserted into the printed wiring board 21.
In another embodiment of the present invention, when the protruding ends of a large number of lead core wires of a multi-core parallel wire body are fixed close to the edge of a printed wiring board, the slit processing and the multi-core parallel wire body are The slit 41 is formed by moving a large number of lead core wire protrusions.
Temporary fixation to can be performed extremely easily and reliably.

As described above, according to the present invention, when fixing the protruding ends of a large number of lead core wires of a multi-core parallel wire body to a printed wiring board, temporary fixing before soldering can be performed extremely easily and reliably.
It is extremely effective for improving work efficiency.

[Brief explanation of drawings]

1 to 3 relate to an embodiment of the present invention, and FIG. 1 is a perspective view showing a state in which the protruding ends of a large number of lead core wires of a multicore parallel wire body are opposed to a large number of holes in a printed wiring board. . FIG. 2 is a rear view of essential parts of the state shown in FIG. 1, viewed from the back surface of the printed wiring board. FIG. 3 is a sectional view showing a state in which the protruding end portion of the lead core wire of the multicore parallel wire body is inserted into the hole of the printed wiring board. FIG. 4 is a plan view of main parts of another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Multi-core parallel wire body, 11... Lead core wire protruding end, 2, 2□... Printed wiring board, 3... Hole, 4 ,4. ---------Slit.

Claims (1)

[Scope of utility model registration request] A large number of holes in a printed wiring board are formed to correspond to the protruding ends of a large number of lead core wires of a multicore parallel wire body to be inserted and fixed.
The large number of protruding ends of the lead core wires should be of sufficient size to facilitate simultaneous insertion even if the protruding ends of the lead core wires are slightly misaligned, and the protrusion of the lead core wires should be ensured when the protruding ends of the lead core wires that have been inserted are moved laterally at the same time. A printed wiring board comprising a hole of sufficient size and a slit that can be used to clamp and temporarily fix parts.