JPS6143737Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention is installed near electrical and electronic equipment, such as telephone exchanges, in which a large number of printed circuit boards are installed, and has pre-wired wiring in case of an emergency failure. This relates to a grounded type printed circuit board storage cabinet for storing printed circuit boards.

[Conventional technology]

Conventionally, the only storages used for the above purpose are relatively large ones such as book storages for office use, and smaller ones are in the form of portable handheld containers. On the other hand, Utility Model Application No. 54-92350 has been proposed as a medium-sized storage facility that can be grounded.

This conventional idea relates to a storage box for organizing and storing electronic components or printed circuit boards, etc. A large number of crosspieces are formed inside a case with an open side, and a drawer-shaped top-opened electronic component storage box is placed on the crosspieces. In the case where a plurality of cases are arranged, the electronic component storage case is made conductive, the housing is made conductive, and the electronic component storage case is grounded through the crosspiece. be.

[Problem that the invention attempts to solve]

However, this conventional technique has the following problems. That is, it is difficult to respond to changes in substrate size. In the above-mentioned conventional technology, the size of the drawer-shaped electronic component storage case is fixed, and the bars that support the case so that it can be taken in and out are also fixed to the inner wall and partition wall of the case. It is difficult to accommodate the board. In particular, a board whose width is larger than the height of the storage case cannot be stored in an upright state because the crosspiece 3 interferes with the board. To solve this problem, it is necessary to prepare multiple types of storage cases with different heights, and if the storage case is unified with the highest height, it will be inconvenient to put in and take out small boards, and the storage space will be used effectively. I can't even figure it out.

Further, in the above-mentioned prior art, no particular consideration was given to storing tools necessary for pulling out the printed circuit board or documents such as a printed circuit board inspection card in the printed circuit board storage.

The present invention has been devised in view of the problems of the prior art, and includes a spare guide rail unit that guides the insertion of printed circuit boards when storing printed circuit boards of different sizes in a storage cabinet, and a spare guide rail unit that guides the insertion of printed circuit boards. The purpose of the present invention is to provide a printed circuit board storage cabinet that collectively stores tools and documents such as printed circuit board inspection cards.

[Means for solving problems]

The present invention consists of a printed circuit board storage shelf in which a plurality of guide rail units are removably fixed in multiple stages, in which a plurality of guide rails are arranged in parallel between a pair of side plates via front and rear brackets, and a space is created around the storage shelf. an outer box having a door with a size that allows the interior to be seen through; a guide provided between the lower part of the storage shelf and the outer box for storing the removed guide rail unit; and a side of the storage shelf. and a holder provided between the storage shelf and the outer box to which a printed circuit board removal tool is attached, and a document tray provided between the upper part of the storage shelf and the outer box to hold documents, etc. do.

[Effect]

Between a storage shelf for printed circuit boards, in which a plurality of guide rail units are removably fixed in multiple stages, in which a plurality of guide rails are arranged in parallel between a pair of side plates via front and rear brackets, and an outer box to which the storage shelf is attached.
By forming at least three spaces, documents such as a spare guide rail unit that guides the insertion of printed circuit boards, a printed circuit board extraction tool, and printed circuit board inspection cards can be stored all at once, making it possible to carry out the work of removing printed circuit boards. This is intended to improve performance, prevent loss of tools, and improve quality control of printed circuit boards.

[Embodiment] The details of the present invention will be explained below according to an embodiment shown in the drawings.

Fig. 1 is a partially transparent perspective view showing an embodiment of the present invention, Fig. 2 is a partially exploded perspective view showing a storage shelf according to the embodiment of the invention, and Fig. 3 is a side vertical sectional view of Fig. 1. , FIG. 4, and FIG. 5 are explanatory views of rearranging the guide rail unit in the embodiment of the present invention.

In FIG. 1, reference numeral 1 designates a storage shelf for printed circuit boards, and on the left and right sides, a pair of side plates 2, 2 each having a U-shaped cross section as shown in FIG. They are placed upright facing each other so that the inside faces are facing each other. The front bent portion 3 has tap holes 7, which overlap mounting holes 6, 6 formed in the front bracket 5 of the guide rail unit 4, which will be described later.
7, 7... are provided, and the rear bent portion 3' has pins 10, 10, 10, .
protrudes toward the front. Furthermore, holders 11, 11 for a printed circuit board extraction tool are attached to the outer front sides of the side plates 2, 2. As shown in FIGS. 2 and 3, the guide rail unit 4 includes a channel-type front bracket 5 and a rear bracket 8.
An intermediate unit 4a in which a plurality of guide rails 12, 12, 12... are installed in parallel at required intervals above and below between
There are two types: and an end unit 4b in which a plurality of guide rails 12, 12, 12, . . . are attached in parallel at required intervals on one side between the angled front bracket 5 and rear bracket 8. The intermediate unit 4a is used as the middle stage of the storage shelf 1, and the end unit 4b is used as the upper and lower stages of the storage shelf 1.

As shown in FIGS. 1 and 3, the size of the outer box 13 is such that there is enough space on all six sides of the storage shelf 1 (top, bottom, left, right, front and back) to allow wrists and fingertips to enter and exit. Attachments 14, 14 for supporting and fixing the rear bent portions 3', 3' of the side plates 2, 2 of the storage shelf 1 are fixed to the inside back of the box 13. Outer box 1
3, a door 17 having a transparent plate 16 made of conductive synthetic resin supported by a support frame 15 is attached to the outer box 13 via a hinge 18 so that it can be opened toward the front. Furthermore, a document tray 20 is attached to the inside of the top plate 19 of the outer box 13 to store inspection cards of printed circuit boards to be stored, and the space below the storage shelf 1 is used for the guide rail unit attached to the storage shelf 1. It is used when storing the removed part after adjusting the interval, and if necessary, guides 22, 22 for preventing slippage are provided inside the bottom plate 21. A ground terminal is provided protruding from the outer surface of the lower part of the outer box 13 so that it can be grounded.

In addition, using Figure 2, there are two cases: one in which four stages of printed circuit boards [small] are stored in the storage according to the present invention, and one in which two stages of printed circuit boards [small] and one stage of printed circuit boards [large] are stored. We will explain the configuration that will be used regularly. The pitches of the tap holes 7, 7, 7... provided in the front bent portions 3, 3 of the side plates 2, 2 and the pins 10, 10, 10... provided protruding from the rear bent portions 3', 3' are adjusted on the printed circuit board. If the case of [small] is C and the case of printed circuit board [large] is D, side plate 2,
Form 4 pitches (C x 4) downward from the top of 2, that is, 5 tap holes and 5 pins on one side plate 2, and tap holes and pins at the boundary between the pitches of the second and third rows from the top. One tapped hole and one pin may be formed at a position lowered by pitch D with respect to the pin, and six tapped holes and six pins may be provided on one side plate 2. Since the size of the printed circuit board usually differs not only in height but also in length, it is necessary to change the length of the rear stopper. In this case, if you simply make two types with different depths, you can change from storing four tiers of small printed circuit boards to storing two tiers of small printed circuit boards and one tier of large printed circuit boards. , it becomes necessary to replace the rear stopper, which takes more time and effort.
Therefore, in order to save this time and effort, as shown in FIG.
By attaching it to the rear bracket 8 of the fourth and fifth stages, and installing the 2L-shaped rear stopper 24, which has an L shape in two stages, to the rear bracket 8 of the third stage from the top, the guide for the third stage from the top can be installed. The end face of the horizontal plate 26 of the 2L type rear stopper 24 is brought into contact with the lower part of the printed circuit board [small] 25 that will fit into the upper side of the rail unit 4, and the printed circuit board [large] 27 that will fit into the lower side of the guide rail unit 4 will be placed in contact with the end surface of the horizontal plate 26 of the 2L type rear stopper 24. 2L at the top
Vertical plate 2 extending below the rear stopper 24
By bringing the inner surfaces of 8 into contact with each other, it is possible to position both the printed circuit board [small] and the printed circuit board [large].

The present invention has the above-described structure, and for reference, how to use the two storage formats described above will be explained. Guide rail unit 4 to side plates 2, 2
To install it, as shown in Fig. 2, insert the engaging holes 9, 9 drilled in the rear bracket 8 of the guide rail unit 4 onto the pins 10, 10 protruding from the rear bent parts 3', 3'. Keep the guide rail unit 4 horizontal and push it backwards so that the guide rail unit 4 is engaged.
After aligning the mounting holes 6, 6 drilled in the front bracket 5 of the guide rail unit 4 with the tapped holes 7, 7 provided in the front bent part 3, tap the male screws 29, 29 inserted into the mounting holes 6, 6. Fix by screwing into holes 7 and 7. Guide rail unit 4
To remove it, of course, just do the opposite operation and pull it out.

Therefore, when storing four tiers of printed circuit boards (small), tap holes 7, 7, 7, etc. formed with pitches C downward from the tops of the side plates 2, 2, pins 10, 10,
10... When fixing the guide rail unit 4 and assembling the storage shelf 1 to store two tiers of printed circuit boards [small] and one tier of printed circuit boards [large], move the printed circuit boards [small] When storing four stages, remove the intermediate unit 4a fixed to the fourth stage from the top and remove the guides 22, 22 on the bottom plate 21 of the outer box 13.
The lowermost end unit 4b
The guide rail unit 4 may be moved downward from the position of the third guide rail unit 4 from the top to the tap holes 7, 7 and pins 10, 10 provided at a pitch D apart. At this time, remove the L-shaped rear stopper.

When manufacturing the storage cabinet of the present invention, the outer box can be completed by bending and welding steel plates, and the storage shelves and guide rail units can also be completed by bending steel plates and drilling holes. Then, by manufacturing only the storage shelves in various ways and assembling them to the outer box, it is possible to easily assemble a storage according to the size of the printed circuit boards to be stored.

[Effect of idea]

Due to the structure of the present invention as described above, the method of use thereof is extremely simple, and the present invention has become practical with good workability. That is, between a printed circuit board storage shelf to which a plurality of guide rail units in which a plurality of guide rails are arranged in parallel between a pair of side plates via front and rear brackets are removably fixed, and an outer box to which the storage shelf is attached. By forming at least three spaces in the space, documents such as a spare guide rail unit for inserting and guiding printed circuit boards, a printed circuit board extraction tool, and printed circuit board inspection cards can be stored all at once. The aim is to improve the workability of taking out, prevent the loss of tools, and improve the quality control of printed circuit boards.

To explain this in detail, since a spare guide rail unit for guiding the insertion of a printed circuit board can be stored in the storage cabinet, the guide rail unit can be used again without worrying about dirt, damage, or static electricity. By being able to store printed circuit board removal tools in the storage cabinet, there is no need to worry about static electricity when using a hand-held removal tool that has been exposed to the outside air, and the tool can be stored in a designated location, making it easier to use the tool. No more getting lost. As described above, the present invention has a very large industrial effect.

[Brief explanation of the drawing]

Fig. 1 is a partially transparent perspective view showing an embodiment of the present invention, Fig. 2 is a partially exploded perspective view showing a storage shelf according to the embodiment of the invention, and Fig. 3 is a side vertical sectional view of Fig. 1. , FIG. 4, and FIG. 5 are explanatory views of rearranging the guide rail unit in the embodiment of the present invention. 1: Storage shelf, 2: Side plate, 3, 3': Bent part, 4: Guide rail unit, 11: Extraction tool holder, 12: Guide rail, 13: Outer box,
16: Transparent plate, 17: Door, 19: Top plate, 20: Document tray, 21: Bottom plate, 22: Guide.

Claims (1)

[Scope of utility model registration request] A storage shelf for printed circuit boards in which a plurality of guide rail units are removably fixed in multiple stages, each having a plurality of guide rails arranged in parallel between a pair of side plates via front and rear brackets, and a space large enough to form around the storage shelf. an outer box having a door through which the inside can be seen through; a guide provided between the lower part of the storage shelf and the outer box for storing the removed guide rail unit; and a side part of the storage shelf and the outer box. and a holder for mounting a printed circuit board removal tool between the storage shelf and the outer box, and a document tray for storing documents, etc., provided between the upper part of the storage shelf and the outer box. Storehouse.