JPS5845879A - Drawing tool for package of printed board - 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 the replacement of interchangeable mechanical parts in electronic devices, and particularly to improvements in a tool for extracting a printed board package mounted on a shelf unit.

The electronic circuit of a unit electronic device is usually printed on a shelf unit in which a back spring/L10 is arranged on the back surface of a bookshelf-like rack bcI in which guide rails a are vertically opposed and arranged side by side, as shown in the side cross section shown in Fig. 1. At least one multi-connector e is provided on the rear edge of the plate d, and a pair of suspensions are provided on the front edge of the plate d. The front plate g has a hole f and a predetermined multi-connector h, and predetermined electronic elements are arranged at high density. The mounted printed circuit board package is inserted in a double-backed manner, and the multi-connector e is engaged with the multi-connector e' of the pack panel, and a connector cable (not shown) is connected between the multi-connectors h and the electronic unit of the pack panel. It had a configuration in which the wires were connected by.

However, in such devices, the printed circuit board package is often replaced for adjustment tests or maintenance inspections during operation of a single device or a system consisting of a plurality of devices. And the bag cage and pack spring /1/
Since the connection with C is made by a multi-connector with approximately 180 pin contacts, the maximum pulling force is 5 to 9.
, and a removal tool was required to remove the package.

The conventional extraction tool has an arm A2 protruding from both ends of a grip A1 as shown by A in the figure, and a bottle A3 which is to be engaged with a hole f for hanging the printed board package is planted on the side of the tip of the arm. However, when using this tool, hold the Al with one hand and move it in the direction of the arrow about 15 degrees downward, 9J,! (There was a concern that when the connector became unlatched, the resistance to pull it out would rapidly disappear and the user would hit their elbow against the device, causing a secondary failure due to the impact.)

In addition, in order to deal with this problem, as shown in Figure 2 (the symbol of the shelf unit is the same as in Figure 1), the bins B3 at the intersection of the long arm B1 and the short arm B2 of the two L-shaped cutting bars B are packaged in a printed board package. The pullers of are engaged with the holes f, and the hooks at the tips of the short arms B2 are brought into contact with the outside of the guide tray/shia, and the long arms B
There is also a tool to increase the pulling force by expanding the l in the direction of the arrow with both hands, but this tool has the drawback of slow workability as it requires balancing the force and operating with both arms.

The object of the present invention is to provide a printed board package removal tool which can correct the above-mentioned drawbacks and has excellent reliability and workability, and which is suitable for electronic devices and connectors.

This is a tool that pulls out a specified package from a shelf unit in which a printed board package with a front panel etc. mounted is mounted in a bookshelf shape, and the sole of the foot touches the outside of a pair of printed board guide trays μ from both ends of the connecting beam. a U-shaped rigid frame protruding parallel legs that can be contacted; a gripping beam having means for sliding between the parallel legs in parallel with the connecting beam; A pair of suspensions on the front plate are equipped with bottles that can be held in holes.
It is characterized by comprising a pair of pull bars and a means for simultaneously retracting the pull bars by gripping the connecting beam and the gripping beam with one hand.

Preferred embodiments of the extraction tool of the present invention will be described in detail below with reference to the drawings. Figure 8 is an embodiment of the present invention♂
FIG. 4 is a front sectional view, FIG. 5 is a side view showing an embodiment of a pond equipped with a reaction force mechanism, and FIG.
The figure is also a front sectional view, and l is the connecting beam 2. It consists of 8 parallel legs. 2 type 14U frame, 4 is a grip beam, 5 is a pull rod, 6 is a suspension bottle, 7 is a recovery spring, 8 is a lever, 9 is a fulcrum piece, 10 is a connecting link, 11 is a suspension for a printed board package. This shows the hole.

First, an improved embodiment of the tool shown in FIG. 1 will be described with reference to FIGS. 3 and 4. In the case of the present invention, the shape of the U-shaped rigid beam l with parallel legs B protruding from both ends of the connecting beam 2 is the same as the conventional one, but opposing protrusions are provided on the inside of the parallel legs, and the protrusions and the connecting Slide hole 81 coaxially penetrating beam 2
and 21. The hole 110 is for hanging the printed board package.
It differs from the conventional method in that the holes are drilled at intervals. A pair of pull rods 5 with a bottle 6 mounted thereon is inserted into the slide holes 81 and 21, and a pair of pull rods 5 having a bottle 6 installed therein is inserted into the slide holes 81 and 21, and a pair of pull rods 5 with a bottle 6 mounted thereon are inserted into the slide holes 81 and 21. A gripping beam 4 parallel to the connecting beam 2 is fixed to the middle position of the connecting beam 21, and a pull rod 6 is
It has a configuration in which a compressible recovery spring 7 is fitted in advance between the connecting beam 2 and the grip beam.

Next, an embodiment of a pond equipped with a usage mechanism corresponding to that shown in FIG. 2 will be described with reference to FIGS. 5 and 6. In this embodiment as well, the outline of the assembly structure indicated by symbols 1, 2, 8, 4, 5°, 6.7 is almost the same as the embodiment shown in FIG. 8, and only the differences will be described in detail.

In the case of this embodiment, the gripping beam 4 is a 1 extending outside the connecting beam 2.
A guide hole 41 is supported by a pair of pull rods 6. A recovery spring 7 is installed between the connecting beam 2 of the pull bar 5 and the gripping beam 4.
Needless to say, this has been depressed. Furthermore, a rotatable fulcrum piece 9 is arranged symmetrically between the slide holes 21 and 81 of the pull rod 6, and the tip of the lever 8, which is symmetrically arranged at the fulcrum 8B of the parallel leg 8'', is arranged symmetrically. Fork part 81
holds the parallel side surface of the fulcrum piece 9, and connects the force point 82, which is separated by light in the direction opposite to the fork part side 81 by holding the fulcrum 8B of the lever lever, and the fulcrum 42' at both ends of the gripping beam into a pair of links. It is connected by lever lO.

In any of the embodiments, when the extraction tool of the present invention is used, the pin 6 of the tool is in the position of 1 liter, so that it protrudes a predetermined amount by the force of the normal recovery spring. 11, and can hold the connecting beam 2 and the gripping beam with one hand with normal working grip strength (up to 15 kg).
), the legs 32 of the first J'-y frame L will hit the outside of the guide rail, and then the two pull rods will move back about 15% each, pulling the connector between the printed circuit board package and the pack panel. After the connection is released, the tool can be easily pulled out with one hand, and there is no damage caused by shock resistance as in the past, making it possible to provide a pulling tool with excellent workability and reliability. An extraction tool with a recess structure shown in FIG. 5 is particularly suitable for connector connections with a large number of contact pins.

[Brief explanation of drawings]

Figures 1 and 2 are explanatory diagrams of conventional extraction tools;
4 and 4 are side views and front sectional views of the tool according to one embodiment of the present invention, and FIGS. 5 and 6 are side views and front sectional views of the pond embodiment. In the figure, 1 is a rigid frame, 2 is a connecting beam, 3 is a parallel leg, 4 is a grip beam, 5 is a pull rod, and 6 is a hole in the hanging hole. Tracing state

Claims (1)

[Claims] A tool that pulls out a specified package from a shelf unit in which printed board packages mounted with electronic elements, connectors, front boards, etc. are mounted in a bookshelf shape, and is a printed board guide tray with a pair of soles from both ends of a connecting beam. a U-shaped rigid frame protruding parallel legs that can abut on the outside of μ; a gripping beam having means for sliding between the parallel legs in parallel with the connecting beam; A pair of suspensions of a curved board which is movable and which is provided on the printed board is secured in a hole by a pair of pull rods with bottles planted thereon, and the connecting beam and the gripping beam are grasped and tightened with one hand. and means for simultaneously retracting the pulling bar.