JPH0211791Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention is a method for mounting an IC on a circuit board.
The present invention relates to an IC mounting tool, and particularly to an IC mounting tool that can accommodate multiple types of ICs.

[Conventional technology]

As a tool for mounting ICs on circuit boards,
IC by holding the IC and pressing one end of the IC.
There is a configuration in which the pins are press-fitted into holes in the circuit board.

However, there are various types of ICs with different sizes, and if we tried to prepare tools suitable for each type, a huge number of tools would be required, equal to the type of IC x the number of workers, which would be a burden. I can't stand it.

In addition, as a conventional IC mounting tool,
There are methods such as those shown in Publication No. 43763 and Publication of Utility Model Application No. 52-111569, but none of them are compatible with multiple types of ICs, and furthermore, they are not accurate and appropriate in terms of directionality and stability when held. Ta.

[Problem that the invention attempts to solve]

As mentioned above, conventional IC mounting tools have to be prepared according to the type of IC, and are insufficient in holding the IC.

This idea was made to solve these problems, and aims to provide an IC mounting tool that can handle multiple types of ICs with one tool and that can hold ICs accurately and appropriately. The purpose is

[Means for solving problems]

In order to achieve the above object, the IC mounting tool of this invention includes a cylindrical case made of synthetic resin and having a pair of flat parts facing each other on the outer surface, a handle at the upper end, and a threaded part at the lower end. and a rod movably disposed in the center of the case;
A plurality of types of guide bodies having a U-shaped cross section and different sizes are attached to the horizontal surface part of the lower end of the case by a pair of screws, and a shape that is screwed into the threaded part through a screw hole and adapted to the guide body. and a plurality of types of pressing plates, at least one of which is shaped like a keyhole for allowing the screw to pass through the guide body, and each linear part is located on the same side and in the same straight line at a predetermined interval. It is characterized in that a single notch is formed so as to

[Effect]

With this configuration, various types of work can be easily performed by exchanging multiple guide bodies and pressing plates.
This tool can accommodate the IC, and the direction in which the tool is gripped is determined by the pair of opposing flat parts provided on the outer surface of the cylindrical case, allowing the IC to be held accurately and appropriately.

〔Example〕

An embodiment of this invention will be described below with reference to the drawings.

Figures 1a and b are a front view and a side view showing the external appearance of the same embodiment, in which 1 is a cylindrical case made of synthetic resin and has a pair of flat parts 2 facing each other on the outer surface; A guide body 4 having a U-shaped cross section is provided on the surface portion 3 to hold the IC. The horizontal surface portion 3 has a rectangular shape when viewed from below, and its long sides are parallel to the flat portion 2.

5 is a handle provided at the upper end of the rod, which will be detailed later; 6 is a press plate provided at the lower end of this rod; 7 is a grounding terminal for grounding the metal part of the tool; 8 is a grounding terminal for grounding the metal part of the tool; The IC is shown held by a guide 4.

FIG. 2 is a longitudinal sectional view showing the inside of the case 1, in which a metal rod 9 is inserted through the center of the case 1.
is provided movably, and the handle 5 is attached to the upper end thereof.
However, the threaded hole 1 is also inserted into the threaded portion 10 at the lower end of this rod 9.
A press plate 6 is attached by screwing the two pieces together. Further, 12 is a screw for fixing the guide body 4 to the horizontal surface portion 3. In addition, a partition wall 13 is formed in the case 1 and also serves as a bearing for the rod 9. The rod 9 is provided through a hole 14a formed at its bottom and a hole 14b formed in the horizontal surface 3. It protrudes from the case 1 and is in constant contact with the rod 9. A spring 15 is interposed inside the partition wall 13 between the handle 5 and the bottom of the partition wall 13 to surround the rod 9 and constantly push the rod 9 upward.

As shown in FIGS. 3a to 3c, a plurality of types of guide bodies 4 and press plates 6 are prepared with different sizes corresponding to the types of ICs.

A pair of keyhole-shaped notches 16a and 16b are formed in the horizontal part of the guide body 4, and the circular hole of the notch 16a located in the center is formed large enough to allow the tip of the rod 9 to pass through. has been done.

Also, in the case shown in c, since the area of the horizontal part is small, the cutout part 16a is formed with the same size and shape, but the cutout part 16b is formed with only the linear part opening at one edge. A clever construction has been adopted in which the space outside the edge is substituted for the circular hole. Note that the linear portions of each of the notches 16a and 16b are formed so as to be located on the same straight line on the same side at a predetermined interval.

The guide body 4 and the press plate 6 are attached and detached as follows.

First, in the state shown in FIG. 4a, the rod 9 is rotated to the left by twisting the handle 5 to the left (in the direction of the dashed arrow in the figure), and the threaded hole 11 of the pressing plate 6 and the threaded portion 10 of the rod 9 are screwed together. , and remove the pressing plate 6.
At this time, the guide body 4 is in the state shown in FIG. 4b, so when the pair of screws 12 is loosened and moved as shown by the broken line arrow, the head of the screw 12 will be in the notch as shown in FIG. 4c. Since it is at the position of the circular holes 16a and 16b, move the guide body 4 upward (in the direction perpendicular to the paper)
When pulled up, the circular hole is larger than the head of the screw 12, so it can be easily removed.

For installation, loosen the screws 12 slightly, position the guide 4 as shown in Figure 4c, and tighten the screws 12.
expose the head of Next, when the guide body 4 is moved in the direction of the solid arrow, the state shown in FIG. Since it is parallel to the long side of the horizontal surface portion 3 and therefore parallel to the flat surface portion 2 of the case 1, the guide body 4 can be accurately attached by tightening the screw 12 here.

In state b, the threaded portion 10 of the rod 9 is in the notch 1.
Since it is exposed through the circular hole 6a, by placing the pressing plate 6 on top of this and rotating the rod 9 clockwise,
By screwing the threaded portion 10 into the screw hole 11, the pressing plate 6 can be fixed at a regular position as shown in FIG.

In this way, the guide body 4 and the press plate 4 can be replaced without removing or attaching the screws 12.
It can be done easily and in a short time, and if the screws 12 are properly installed, the guide body 4 and press plate 6 can be easily replaced without any tools, and various ICs can be replaced with one tool. It is economical and can correspond to

As shown in FIG. 1, this IC mounting tool can restrict the pins of the IC 8, which have been slightly spread, to a predetermined interval by pushing the IC 8 into the guide body 4. Furthermore, as shown in FIG. 5, if you grip the part of the case 1 where the flat part 2 is formed, the existence of this flat part 2 allows you to grip the tool in an accurate direction, and the pins of the IC8 are lined up. The direction in which the tool is gripped is parallel to the flat part 2, and therefore the long side of the horizontal part 3 and the vertical part of the guide body 4. Using these as a guide, press the handle 5 while maintaining the grip direction of the tool. As a result, the pressing plate 6 is lowered using the guide body 4 as a guide, and the pins of the IC 8 can be easily and accurately inserted into the insertion holes of the circuit board, thereby achieving efficient mounting.

Note that this invention is not limited to the above-mentioned embodiments, and can be implemented with various modifications without changing the gist.

[Effect of idea]

According to this idea, one tool can handle multiple types of
An IC that is compatible with ICs and is efficient in mounting ICs.
Installation tools can be provided.

[Brief explanation of drawings]

Figures 1a and b show the external appearance of an embodiment of this invention; a is a front view, b is a side view, and Figure 2 is a longitudinal sectional front view with a part of the case cut away to expose the inside;
FIGS. 3 a to 3 c are explanatory diagrams of multiple types of guide bodies and pressing plates used in the same embodiment, and FIGS. FIG. 5 is a perspective view showing the usage state of the same embodiment. DESCRIPTION OF SYMBOLS 1... Case, 2... Plane part, 3... Horizontal surface part, 4... Guide body, 5... Handle, 6... Pressing plate,
7... Ground terminal, 8... IC, 9... Rod, 10
...Threaded part, 11...Screw hole, 12...Screw, 1
3...Partition wall, 14a, 14b...hole, 15...
...Spring, 16a, 16b...Notch.

Claims (1)

[Scope of utility model registration request] a cylindrical case made of synthetic resin and having a pair of flat parts facing each other on the outer surface; a rod having a handle at the upper end and a threaded part at the lower end and movably disposed in the center of the case; A plurality of types of guide bodies having a U-shaped cross section and different sizes are attached to the horizontal surface part of the lower end of the case by a pair of screws, and a shape that is screwed into the threaded part through a screw hole and adapted to the guide body. and a plurality of types of pressing plates, at least one of which is shaped like a keyhole for the screw to pass through the guide body, and each linear part is located on the same side and on the same straight line at a predetermined interval. An IC mounting tool characterized by having a pair of notches formed so as to