JPS58197686A - Method of aligning and implanting sleeve terminal - 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 The present invention relates to a method for aligning and implanting sleeve terminals as applied to a two-part sleeve terminal and socket base assembly.

As shown in Figure 1, 1. A sleeve terminal 1 used for an IC socket, etc. has an outer contact 1' in which a pin terminal part 3 extends from the lower end of a cylindrical part 2 that opens at the upper end, and a plurality of elastic contact pieces 5 extending from the lower end of a ring part 7. The inner contact 4 is inserted into the cylindrical part 2 with the ring part 7 facing upward.

Generally, when assembling the sleeve terminal 1 to the socket base 6 as shown in FIG. A method is adopted in which each individual item is automatically implanted into the terminal insertion hole 10 of the socket base 6 shown in the figure.

However, when the sleeve terminals 1 completed as described above are implanted while being automatically fed one by one, it is inevitable that the elastic contact pieces 5 of the inner contacts 4 will be oriented unevenly as shown in FIG. Due to the irregular arrangement of the inner contacts 4, the contact pressure and contact posture with the ICIJ-dead inserted into the inner contacts 4 are uneven on each side of the sleeve terminal, which is desirable for ensuring electrical reliability. There is a drawback that homogeneous contact between the terminal sides cannot be achieved.

The present invention accurately eliminates the uneven arrangement of the sleeve terminals 1, that is, the inner contacts 4 with respect to the socket base 6 as described above, and also enables alignment and implantation of the assembly IJ-1 of the sleeve terminal 1 and the socket base 6 consisting of the above three parts. The aim is to achieve high efficiency.

That is, the present invention provides a sleeve terminal 1 formed by press-fitting the inner contact 4 into the cylindrical portion 2 of the outer contact 1' having the above-mentioned structure so that the ring portion 7 thereof is on the upper side. This is a method of aligning and implanting into the insertion hole 10, and this will be described in detail as follows based on the embodiments shown in FIGS. 4 and subsequent figures.

In order to use the inner contact press-insertion described above, an inner contact connecting strip L+ in which a plurality of inner contacts 4 are connected and held in series with a strip 8 is prepared as shown in FIG. Each inner contact 4 is connected via a connecting piece 9 protruding from one longitudinal side of the strip 8 for each contact, and the tapered part of each connecting piece 9 is directly connected to the ring part 7 of each inner contact 4, It is placed in a suspended state on one side of the strip material 8. The inner contact connecting strip L1 is formed by known punching and forming processes.

As shown in FIGS. 8A-)B, each inner contact 4 is connected to the outer contact 1' prepared separately under the connection by the inner contact connecting strip L1.
Pressure fit into the cylindrical part 2 of and combine the two.

The upper end opening 11 of the cylindrical part 2 of the outer contact 1' is mortar-shaped, and the contact insertion depth by the inner contact press-insertion is the depth at which the upper end of the ring part 7 reaches the lower end of the mortar-shaped opening 11. Set to .

As a result of the above, the band 8 is caused to pass from the upper end of the ring portion 7 of the inner contact 4, that is, from the lower end of the mortar-shaped opening 11, through the mortar-shaped opening 11, and to rise above the cylindrical portion of the outer contact 1', and thus, as shown in FIG. 8B. And as shown in FIG.
A temporarily assembled sleeve terminal connecting strip is formed to connect and hold the two terminals in series under the combination of the two.

For the sake of explanation, FIG. 5 shows a state in which some of the inner contacts 4 and the outer contacts 1' are press-fitted.

Next, as shown in FIG. 8C, each temporarily assembled sleeve terminal 1 is connected to a plurality of terminal insertion holes drilled in a row in the socket base 6 while being connected by the temporarily assembled sleeve terminal connecting strip L2. Press-fit into each at once.

As shown in FIG. 6 by the above-mentioned batch press-fitting, each of the sleeve terminals 1 is planted into each of the terminal insertion holes 10 of the socket base 6, and the strip material 8 is placed outside the terminal insertion holes 10, that is, on the top surface of the base. A temporary socket assembly is formed that protrudes into the socket. After the above-mentioned batch press-fitting, the sleeve terminal connecting strip L2 is laterally bent as shown in the eighth diagram while the press-fitting is being carried out.

As described above, the opening 11 of the outer contact 1' is in the shape of a mortar, and the inclined surface 11' of the mortar-shaped opening 11 allows the strip material 8 to be bent laterally to the left and right.

The starting point of the strip 8, that is, the connection point between the connecting piece 9 of the strip 8 and the ring portion 7 of the inner contact 4 is the lower end of the bowl-shaped opening 11 due to the setting of the insertion source, and Using the lower end of the opening as a fulcrum, stretch the strip 8 toward the inclined surface 11' side.
Lateral bending is allowed.

A ring portion 7 is press-fitted and held directly below the connecting point (lateral bending fulcrum), and the horizontal bending of the strip material is carried out while the band is fixed to the ring portion 7.

By allowing the strip material 8 to be bent left and right in the manner described above while the sleeve terminal connecting strip L2 is press-fitted into the socket base 6 at once, the strip material can be broken accurately and beautifully, and the sleeve terminals can be aligned and implanted. The purpose is achieved.

That is, the I assembled through the series of implantation steps as described above.
In the C socket, the implantation posture of each inner contact 4 in each sleeve terminal 1 is uniformly unified, and all ICs are
It is possible to unify the contact pattern between the IJ-board and the sleeve terminal and to make the contact homogeneous.

FIG. 9 shows an example of the aligned and implanted state.

Furthermore, according to the invention, the sleeve terminal 1 to the socket base 6
Assembling can be performed extremely efficiently, positioning and posture control during parts feeding on the assembly line are extremely easy, and an optimal method can be provided for achieving the above-mentioned alignment and implantation purpose.

[Brief explanation of the drawing]

Figure 1 is an exploded perspective view showing an example of the general structure of a sleeve terminal.
Fig. 2 is an assembled sectional view, Fig. 3 is a plan view showing the arrangement of sleeve terminals of a conventional IC socket, Figs. 4 and 5,
FIG. 6 is a diagram illustrating the main steps of the present invention, FIG. 4 is an exploded perspective view showing the state immediately before the inner contact is press-fitted into the outer contact, and FIG. 5 is a temporarily assembled sleeve terminal connection strip after press-fitting. FIG. 6 is a perspective view showing the same strip material embedded in the socket base; FIG. 7 is a perspective view of the IC socket with the strip material removed;
FIGS. 8A to 8E are partial sectional views illustrating one step of assembling the inner contact, outer contact, and socket base of the present invention in the order of steps, and FIG. 9 is a diagram showing the arrangement of the sleeve terminals after the assembly is completed. FIG. 1...Sleeve terminal, 1' outer contact,
4 Inner contact, 5 - Elastic contact piece, 6 - Socket base, 7... Ring section, 8... Band material, 9... Connecting piece, 10 Terminal planting hole, 11 - Pot-shaped opening, 11'.
・Slope, LI...Inner contact connecting strip, L
2.Temporary assembly sleeve terminal connection strip. Patent Applicant Yama-Denki Kogyo Co., Ltd. Figure 1 Figure 5 Figure 3 Procedural Amendment June 8, 1982 Commissioner of the Patent Office Haruki Shimada 1 Indication of the Case 1981 Patent Application No. 078819 2 Invention Name Alignment and implantation method of sleeve terminals 3 Relationship with the case of the person making the amendment Patent applicant: Mr. 1111 Kao Name) Yama-Denki Kogyo Co., Ltd. 4, Agent Address: 105 8 Patent claims in the description of the contents of the amendment Correct the range as described in the attached sheet. "Record" (Claims) [(1) Consisting of an outer contact with a pin terminal extending from the lower end of a cylinder that opens at the upper end, and an inner contact with an elastic contact piece extending from the lower end of the ring, A method of aligning and implanting sleeve terminals, which are formed by press-fitting an inner contact into the cylindrical portion of the outer contact with the ring portion thereof facing upward, into the terminal insertion hole of the socket base, wherein a plurality of the inner contacts An inner contact connecting strip is connected and held in series to the band material at the upper end of the ring portion, and each of the inner contacts is press-fitted into the cylindrical portion of the outer contact while being connected by the inner contact connecting strip. The insertion depth by press insertion of the inner contact is set to a depth where the upper end of the ring part reaches the lower end of the socket-shaped opening at the upper end of the cylindrical part, and the strip material is inserted from the upper end of the ring part of the inner contact, that is, the lower end of the socket-shaped opening. A temporary assembly sleeve terminal connecting strip is formed by passing through the pot-shaped opening and standing up above the cylindrical portion of the outer contact so that the strip material connects and holds the inner contact and the outer contact in series, and the temporary assembly sleeve terminal connecting strip Under connection, the temporary assembly of each sleeve terminal is press-fitted into each of a plurality of terminal insertion holes drilled in a row in the socket base, and after press-fitting, the strip of the sleeve terminal connection strip is inserted into the upper end of the cylindrical part of the outer contact. A method for aligning and implanting sleeve terminals, which comprises breaking and separating the slanted surface of the pot-shaped opening while allowing lateral bending, thereby obtaining an alignment of the sleeve terminal and the socket base.

Claims (1)

[Claims] It consists of an outer contact with a pin terminal extending from the lower end of a cylinder that opens at the upper end, and an inner contact with an elastic contact piece extending from the lower end of the ring, and the inner contact is placed inside the cylindrical part of the outer contact. The sleeve terminal is formed by press-fitting the sleeve terminal with the upper part facing up.
A method of aligning and implanting the inner contacts into the terminal implantation holes of the socket base, wherein a plurality of the inner contacts are connected and held in series to a strip material at the upper end of the ring portion to form an inner contact connecting strip material, and the inner contacts are connected to each other. Each of the inner contacts is press-fitted into the cylindrical portion of the outer contact while connected by a strip, and the insertion depth by press-fitting the inner contacts is set to a depth at which the upper end of the ring portion reaches the lower end of the pot-shaped opening at the upper end of the cylindrical portion. At the same time, the strip material is raised from the upper end of the ring part of the inner contact, that is, the lower end of the pot-shaped opening, through the pot-shaped opening and above the cylindrical part of the outer contact, so that the strip material connects the inner contact and the outer contact in series. A temporarily assembled sleeve terminal connecting strip is formed to connect and hold the temporarily assembled sleeve terminal, and while connected by the temporarily assembled sleeve terminal connecting strip, each temporarily assembled sleeve terminal is inserted into a plurality of terminal insertion holes drilled in a row in the socket base. After press-fitting, the strip of the sleeve terminal connecting strip is broken and separated while allowing lateral bending at the inclined surface of the catch-shaped opening at the upper end of the cylindrical part of the outer contact. A sleeve terminal alignment and implantation method characterized by obtaining a socket base assembly.