JPH0244544Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention is used when transporting or storing printed wiring boards, and has a form that has many guide grooves on the surface and can be attached and detached as a single unit to a storage box. Or, it relates to a printed wiring board storage guide formed integrally with a storage box.

(b) Conventional technology Storage boxes conventionally used for processing printed wiring boards, mounting parts, moving printed wiring boards during processing steps after mounting parts, and/or storage after processing. These printed wiring board storage guides are usually formed directly on the inner surface of the storage box, or are used by attaching a separately formed storage guide inside the storage box.These printed wiring board storage guides 1 are shown in Figure 4. As shown in the figure, it consisted of guide grooves 3 of a single length arranged parallel to each other at equal intervals on the surface of the plate body 2.

(c) Problems to be solved by the invention Conventional printed wiring board storage guides as described above are arranged or formed oppositely on two sides according to the size of the printed wiring boards to be stored in a normal storage box. The printed wiring board is inserted and held using any pair of opposing guide grooves, but since all the guide grooves have the same shape (length), the original pair of guide grooves at opposite front positions It was quite common to accidentally insert the guide groove into another guide groove nearby. Even if a printed wiring board is inserted by mistake, there is no particular problem as long as it does not come into contact with other adjacent printed wiring boards, but in general, printed wiring boards are stored in one storage box as much as possible. Usually, the distance between the substrates is not very large. Therefore, if the mounted components or printed pattern surfaces are damaged due to mutual contact due to incorrectly inserting them close together, the damage may induce corrosion and reduce the reliability of the wiring circuit over time.
The use of a printed wiring board storage guide has often resulted in the completely opposite effect.

Furthermore, even if some landmarks were placed near the guide groove to avoid accidents like those mentioned above,
Workers who continue to perform the same repetitive tasks inevitably become accustomed to the process and begin to perform intuitive movements, making it impossible to obtain any fundamental countermeasure effects.

(d) Means for solving the problem The above problem is solved by arranging a large number of guide grooves in parallel on the surface of the plate, and the length of the guide groove is equal to the envelope connecting the tips of each guide groove in sequence. The length of the guide groove is different from the length of the adjacent guide groove so that the line forms a substantially serrated mountain shape with a specific period, and this substantially serrated mountain shape is arranged so that the right angle part of the right triangle is parallel to the common base. The problem is solved by a printed wiring board storage guide characterized by having a continuous shape as shown in FIG.

The substantially serrated mountain shape has a shape in which a right angle part of a right triangle is moved parallel to a common base, and one of the substantially serrated mountain shapes is formed by five guide grooves, and If the shape of the plate is symmetrical with respect to the center of the plate, the approximate position where the plate should be stored can be grasped at a glance, which is very effective.

(e) Embodiment An embodiment of the present invention will be described below based on the drawings.

In FIGS. 1 to 3, reference numeral 1 is a printed wiring board storage guide according to the present invention, which has a large number of guide grooves 3 on the surface (both sides are possible) of a plate body 2.
The length of the guide groove 3 is set at a specific period, for example every five guide grooves, at the tips of each of the grooves 3a, 3b, 3c, 3d, 3e.
The envelope line which is sequentially connected is set so as to form a substantially sawtooth-shaped chevron 4.

Here, the printed wiring board storage guide 1
Lightweight materials such as synthetic resin or aluminum are suitable as materials for forming the body, as they are less burdensome during transportation. The substantially serrated chevron 4 is formed at the center of the plate 2 so that when two identical printed wiring board storage guides 1 are arranged oppositely, guide grooves 3 of the same length correspond to each other. Of course, they must be placed symmetrically as boundaries. Furthermore, the plate body 2 may be a single plate-like body as in this embodiment that is attached to the inside of a storage box, or a guide groove is formed in the inner wall itself, although not shown, assuming that the plate body 2 is an inner wall of a storage box. Of course, it is also possible to realize the same usage pattern even if the Further, in the figure, numeral 5 is a storage box to which the printed wiring board storage guide 1 is attached, 6 is a printed wiring board to be stored, and 6a is an edge portion of the printed wiring board 6.

(f) Function As shown in FIG. 3, the printed wiring board storage guide 1 according to the above-described embodiment is attached to two opposing inner walls of the storage box 5, and is inserted into any opposing guide groove 3. The edge portion 6a of the printed wiring board 6 is slid in and stored.

Incidentally, when storing this, the tip of the edge portion 6a of the printed wiring board 6 on the insertion start side is brought into light contact with the sloped ridge side of the substantially serrated ridge 4 in FIG. 1, and parallel displacement insertion is started. They are guided into guide grooves 3 of exactly the same length. The position of the guide groove to be accommodated can also be roughly grasped at a glance by the number and position form of the substantially serrated chevrons.

(g) Effect of the invention As described above, according to the invention, the length of the guide groove is such that the envelope line connecting the tips of each guide groove in sequence forms a substantially sawtooth mountain shape with a specific period. Because the setting is set to It has become possible to provide a simple and extremely useful printed wiring board storage guide that can prevent damage accidents caused by mutual contact that are likely to occur when taking the printed wiring boards in and out.

[Brief explanation of the drawing]

1 is a partially omitted front view showing a printed wiring board storage guide according to an embodiment of the present invention; FIG. 2 is a plan view of the printed wiring board storage guide of FIG. 1;
FIG. 3 is a schematic sectional view showing an example of use of the printed wiring board storage guide according to the present invention, and FIG. 4 is a partially omitted front view showing a conventional printed wiring board storage guide. 2... Plate body, 3... Guide groove, 4... Approximately serrated chevron, 5... Storage box.

Claims (1)

[Claims for Utility Model Registration] (1) A large number of guide grooves are arranged in parallel on the surface of a plate, and the length of the guide grooves is such that an envelope connecting the tips of each guide groove in turn has a specific value. The length of the guide groove is different from the length of the adjacent guide groove so as to form an approximately serrated mountain shape with a periodicity, and this approximately serrated mountain shape is arranged so that the right angle part of the right triangle is moved in parallel so as to be in contact with the common base. A printed wiring board storage guide characterized by having a continuous shape as shown in FIG. (2) The printed wiring board storage guide according to claim 1, wherein one of the substantially serrated chevrons is formed by five guide grooves. (3) The printed wiring board storage guide according to claim 1, wherein the substantially sawtooth-shaped chevrons are arranged symmetrically with respect to the center of the plate.