JPH03212998A - Radial taping method for electronic components - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for radial taping of electronic components for mounting on printed circuit boards, such as switches, which are mainly used in consumer video and audio equipment such as televisions, video, and audio equipment. It is.

Conventional technology In general, as a method for attaching electronic components to printed circuit boards, automatic insertion machines (radial lead component layer Electronic components such as switches and variable resistors with complex shapes and a large number of terminals that require wiring are installed manually.

However, in recent years, the assembly of sets has become more streamlined, and electronic components have become smaller and more difficult to handle manually. In recent years, installation has become required.

FIGS. 6 to 8 are diagrams illustrating conventional taping examples. In FIGS. 6 to 8, 1 is an electronic component having a plurality of terminals 2, and two cylindrical bosses lb are formed on the board mounting bottom surface 1a, perpendicular to this bottom surface 1a and spaced apart from each other by a predetermined distance MS. , lc are provided. 3 is a taping terminal,
It has a pedestal part 3a, and lead parts 3b and 3c are installed parallel to each other and perpendicular to the pedestal part 3a with a predetermined distance P between them, and a boss lb is provided on the pedestal part 3a.

Holes 3e and 3d are provided to fit into the IC.

As shown in FIG. 8, the taping terminal 3 has a hole 3e.

After inserting bosses lb and lc into 3d, boss lb.

The IC is fixed to the electronic component 1 by cold or heating. Moreover, the lead part 3b.

The tip of 3C is attached to base tape 4 with adhesive tape 5 while maintaining a predetermined distance MP.

Problems to be Solved by the Invention However, in the conventional taping method, the taping terminal 3 is a sheet metal part that requires a precision mold, so the parts cost is high.
Since the part is pre-formed into a U-shape by the lead parts 3b and 3c, it is easily deformed during the process of fixing it to the electronic component, and requires particular precision when mounting the lead part 3b.
This has the disadvantage that variations tend to occur in one dimension of the 3c interval, resulting in a lack of mounting accuracy.

The present invention solves these conventional problems, and aims to provide a radial taping method for electronic components that is inexpensive and provides excellent mounting accuracy.

Means for Solving the Problems In order to solve the above problems, the taping method of the present invention involves attaching two taping terminals made by cutting a metal wire to the center of the bottom surface of the board mounting surface of an electronic component from which a plurality of terminals protrude. The tips of the taped terminals are press-fit perpendicularly to the bottom surface of the board into holes that are provided at a predetermined interval on the wire at a position different from the protrusion of the terminals and have a slightly smaller diameter than the taped terminals, and the tips of the taped terminals are taped. The electronic components are attached to a shaped body and arranged at a predetermined pitch.

Effect With the above configuration, the taping terminal attached to the electronic component does not use a component pre-formed in a U-shape by a pedestal part and two lead parts as in the past.
All you have to do is press-fit two terminals cut from round wire into the holes on the bottom of the electronic component's board, so there is no risk of deformation during the process of fixing it to the electronic component, and it can be easily fixed. By attaching these two taping terminals to the tape-shaped body using adhesive tape or the like, electronic components can be arranged and fixed easily on the tape-shaped body with a predetermined pitch with high accuracy.

Example An embodiment of the present invention will be described below based on the drawings.

1 and 2 are perspective views showing a radial taping method for electronic components according to an embodiment of the present invention. In FIG. 2, reference numeral 11 is made of an insulating molded material, and the board mounting bottom surface 11a
It is an electronic component having a plurality of terminals 12 protruding from the board, and holes 11b and 11c are formed at a predetermined distance MP on the center line of the board mounting bottom surface 11a at a position different from the protruding parts of the terminals 12.
is provided. Taping terminal 13.14 is approximately 18
It consists of two round wire rods cut to a length of ~20 IWI, and the fixed ends 13a and 14a are taped terminals 13.
The first and second holes are cold-sized or heated and press-fitted into holes 11b and 11c having a diameter slightly smaller than that of 14, and are fixed perpendicularly to the board mounting bottom surface 11a and parallel to each other at a distance P.
As shown in the figure, the free ends 13b and 14b of the taping terminals 13.14 are attached to a base tape 15 made of paper material having holes 15a arranged at a predetermined pitch, and the free ends 13b and 14b are adhered with the distance equal to the distance MP. The electronic components 11 are attached to the base tape 16 at predetermined pitches, as shown in FIG.

As described above, according to this embodiment, the taping terminals 13, 1
4 is a straight line made of a round wire, and has a predetermined length of 18 to 2
Parts can be processed using a mold for cutting to 0am length,
This has the advantage that the cost of parts can be made very low, and that it is difficult to deform during the process of completing taping of a simple shape, so that taping accuracy can be improved.

FIGS. 4 and 5 are perspective views showing other embodiments, respectively. Figure 4 shows the fixed ends 13a and 14 of the taping terminal.
This is a method of rolling A and press-fitting into the hole 11b, tlc, and FIG. 5 shows a method of knurling and press-fitting. Therefore, in this embodiment, the taping terminal 1
This has the effect of increasing the fixing strength to the electronic component 11 of 3.14.

Effects of the Invention As described above, according to the present invention, the taping terminal is made of a round wire and has a simple straight shape and is press-fitted into the hole provided on the bottom surface of the board mounting surface of the electronic component. Taping costs can be reduced. Furthermore, since it has a simple shape, deformation of the taping terminal during the taping process can be prevented, which has the effect of improving taping accuracy and mounting accuracy.

[Brief explanation of drawings]

1 and 2 are perspective views illustrating the radial taping method of electronic components of the present invention, FIG. 3 is a partially sectional front view showing the taped state, and FIGS. 4 and 5 are other views, respectively. 6 and 7 are perspective views of main parts showing an embodiment of
The figure is a perspective view illustrating a conventional radial taping method for electronic components, and FIG. 8 is a partially sectional front view showing the conventional taped state. 11... Electronic component, 11a... Board mounting bottom surface, 11
b. 11c...hole, 12...terminal, 13.14...taping terminal, 13a, 14a--fixed end, 13b
, 14b--free end, 14--base tape, 1
5... Adhesive tape.

Claims (2)

[Claims] 1. Two taped terminals cut from metal wire,
The board mounting bottom surface of an electronic component from which a plurality of terminals are protruding is inserted into holes provided at predetermined intervals at positions different from the protruding parts of the terminals on the center line of the board mounting bottom surface and having a diameter slightly smaller than that of the taped terminals. A radial taping method for electronic components, in which the electronic components are arranged at a predetermined pitch by press-fitting them perpendicularly to a tape-like body and pasting the tips of the taped terminals on a tape-like body. 2. The method for radial taping of electronic components according to claim 1, characterized in that the metal wire is cut and two taping terminals whose press-fit portions are rolled or knurled to prevent them from coming off are press-fitted into holes provided on the bottom of the insulating base. .