JP4756910B2 - Fine parts storage container - Google Patents

Description

  As the electronic device product, opto-device product, etc. are miniaturized, the peripheral components of the present invention have also been miniaturized. The present invention relates to a fine component storage container for preventing the fine component from being scattered and scattered during temporary storage and assembly of the fine component in the manufacturing process.

In recent years, digital home appliances and optical communication have been widely spread, and various types of products have been complicated and miniaturized as performance has been improved. In particular, peripheral parts, mainly electronic devices and opto devices, are spurred by further miniaturization and densification. Due to this background, prevention of dust contamination of parts and prevention of electrostatic breakdown are becoming more urgent.
However, many conventional containers for storing and temporarily storing parts do not take measures against dust generation or electrostatic breakdown in the container.
For example, a screw that has been pre-greased, washed with water, and dried, so-called parts cleaning, and a screw stored in a conventional storage container is used for assembly work, etc., and the bottom surface is always observed. The bottom surface is darkened, and sometimes fine powder can be confirmed.
This phenomenon is not limited to screws, and the same result is obtained when other fine parts are accommodated. It is obvious that this is dust generation due to contact between parts and dust generation due to collision of the parts with the side of the container when the container is moved.
Next, when taking out a component, insulating ceramic tweezers are widely used so that static electricity generated by a worker's clothes misalignment or the like is not directly applied to the component for countermeasures against static electricity. However, ceramic tweezers are slippery on the surface, and there are many mistakes in gripping the parts, causing damage to the parts themselves, scattering of damaged particles, electrification due to collision between parts, and the induction of new dust. There is always a danger associated with dust contamination.
From the above, it is desirable that the fine component storage container can hold the components and the entire container has conductivity.
However, conventional storage containers are intended to hold parts, for example, a sponge sheet is laid, but this has a drawback that dust is likely to be generated due to frictional wear between the sponge and the parts. In addition, since the entire container is covered with black, the storage container with countermeasures against static electricity has a drawback that the components stored therein cannot be confirmed unless the lid is opened each time.
Therefore, it cannot be said that the conventional storage case satisfies all of the dust generation countermeasure, the electrostatic countermeasure and the ease of confirmation of the contents at the same time.

  In the present invention, first, the contents can be easily confirmed. Easily remove the contents, prevent contact and scattering between parts, and quickly catch damaged particles when dust is generated by contact. Furthermore, it has antistatic performance. An object of the present invention is to provide a fine component holder that satisfies all of these requirements at a low cost.

A first invention of the present invention for solving the above-mentioned problems is a fine component storage container as described in claim 1, and is as follows.
A conductive adhesive rubber is laid as an elastic member for holding a component on the inner bottom of the synthetic resin case, and a static elimination ground is provided to hold the component and remove dust at the same time .

A second invention of the present invention for solving the above-mentioned problems is a fine component storage container as described in claim 2 and is as follows.
In addition to the first aspect of the present invention, as a static elimination ground, an eyelet is formed at the bottom of the synthetic resin case.

A third invention of the present invention for solving the above-mentioned problems is a fine component storage container as described in claim 3 and is as follows.
In addition to the invention described in claim 1 or 2, the inner surface and the outer surface of the synthetic resin case are connected by using a metal or non-ferrous metal that can be energized or a conductive synthetic resin as a static elimination ground. In this configuration, static electricity is released by contacting the bottom surface or side surface of the elastic member for holding the fine component.

A fourth invention of the present invention for solving the above-described problems is a fine component storage container as described in claim 4 , and is as follows.
In addition to the invention according to any one of claims 1 to 3, in the synthetic resin case, have a rib (foot) outside the bottom, arranged neutralization grounded to the outer bottom, the discharger A metal or non-ferrous metal plate, a spring, a conductive elastic body, or a conductive foam is provided on the outer surface side of the ground to prevent backlash of the synthetic resin case.

Since the fine component storage container according to the present invention has the configuration as described above, the following effects can be obtained.
(1) Since the elastic member for holding the parts is laid on the inner bottom of the storage container, the fine parts can be stored in a stable state, and are less likely to be scattered or scattered even during the work of taking out.
(2) The contents can be easily confirmed by making the synthetic resin case a transparent resin.
(3) By making the component holding part an adhesive rubber, it becomes easy to fix the contents, and the contents do not move even when taken out with tweezers or the like, and therefore can be easily taken out.
(4) By making the component holding part an adhesive rubber, it is possible to quickly remove dust generated by contact between contents.
(5) By using a static elimination ground as an eyelet, no ground wire or pin jack is required.
(6) By making the elastic member for holding the parts conductive, it is possible to always reduce the charged voltage to 0 via the eyelet even when impact frictional charging between the parts occurs, while reducing the impact on the parts. .

  A through hole is made in one corner of the bottom corner of a commercially available styrene case with a lid, a metal (preferably made of stainless steel) eyelet with a diameter of 5 mm to 10 mm is driven in, and a conductive adhesive rubber having the same dimensions as the inner bottom of the styrene case is used. By laying down and using a polystyrene case with a rib (foot) rise at the bottom, the polystyrene case can be prevented from rattling due to the protrusion of the eyelet, and the rise dimension of the rib and the size of the eyelet When the height does not match, the fine component storage container is adjusted by using the eyelet through a washer or the like.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
First, some specific examples will be described in the order of development.
The first attempt was to open a hole with a diameter of approximately 5 mm in the bottom and corners of a commercially available synthetic resin case, and put a 5 mm brass eyelet on the top of the inner bottom of the synthetic resin case. An adhesive rubber was pasted to make a product. Originally, it was an attempt to ground the transfer sheet (adhesive rubber), but the height of the eyelet hindered the leveling of the synthetic resin case, causing backlash, and a satisfactory one could not be obtained. However, it was confirmed that the adhesive rubber and the floor surface were energized reliably, which was a big step in determining the direction of development.

Next, an attempt was made to provide eyelets at the four corners of the bottom of the synthetic resin case. The hitting of four eyelets simply deviated from the objective of making the manpower simply and quadrupling.
Next, the directionality is slightly changed, and the conductive tape 1 is taken out from the inner side surface of the synthetic resin case 2 to the outside as shown in FIG. Supporting the conductive tape 1 and one side where the conductive tape 1 is not disposed, the backlash can be greatly reduced as compared with the above-described embodiment. However, there is some instability. In addition, the upper lid 9 cannot be closed.
However, there is no problem in this embodiment when considered for holding fine parts, but there is a possibility of scattering during transportation when considering the function as the fine parts storage container 3, and it is still optimal for the purpose. I can't say that.

Next, an example as shown in FIG. 2 was tried as a solution to the prevention of rattling and the reliable covering of the lid 9 at the same time.
That is, a grommet 4 is struck on the bottom corner of the synthetic resin case 2, adhesive rubber 6 or conductive adhesive rubber is laid on the inner bottom of the synthetic resin case 2, and the synthetic resin case 2 of the grommet 4 A metal backlash prevention plate 5 is provided on the entire bottom except for the portion protruding from the bottom.

  Thus, the problems of rattling and scattering could be solved completely, but the rattling prevention plate 5 is slightly suitable for the purpose of making it inexpensively because it uses a metal processed product.

Therefore, as shown in FIG. 1, a synthetic resin case 2 provided with ribs 7 (foot portions) on the bottom surface of the synthetic resin case 2 that coincide with the protruding height of the eyelet 4 (a state where the eyelet and the floor are in contact). Since the rib 7 and the height of the eyelet 4 were selected to be used, good results were obtained.
However, when the synthetic resin case 2 is changed, the height of the ribs 7 changes, so it is necessary to prepare several types of eyelets 4 having different heights.

Therefore, as shown in FIG. 4, a washer 8 is arranged inside the eyelet 4 to adjust the height so that the height of the rib 7 and the eyelet 4 is matched.
Although not shown in the figure, a conductive tape or spring is placed on the bottom of the eyelet 4 and the height is finely adjusted, so that the ground can always be in contact with the floor surface. Became.

  Since it has a configuration with the conductive adhesive rubber and static elimination ground as described above, the conductive adhesive rubber is laid to eliminate the effects of static electricity on the electronic parts and when grasping with ceramic tweezers. Since the fine parts are placed and housed on it, the fine parts are lightly adhered and held with adhesive rubber and do not move. There is nothing.

  It can also be used to store various items that dislike static electricity.

It is sectional drawing which shows the fine component storage container which is an Example of this invention. It is a front sectional view showing an example in which a metal rattle prevention plate is provided so as to coincide with the height of the protruding portion of the static elimination earth (eyelet) of the present invention. In another embodiment of the present invention, from the conductive adhesive rubber laid on the bottom of the synthetic resin case, a static elimination ground (conductive tape) is stretched along the inner side, the outer side, and the bottom of the synthetic resin case. It is front sectional drawing which shows the Example which was circulated. In another embodiment of the present invention, there are various types of synthetic resin cases, and the height was adjusted by interposing a washer on the inside of the eyelet so that the height of the rib of the case made of the synthetic resin matches the eyelet. It is a front sectional view showing an example.

DESCRIPTION OF SYMBOLS 1 .... Conductive tape 2 .... Synthetic resin case 3 .... Fine parts storage container 4 .... Eyelet 5 .... Metal rattle prevention plate 6 .... Adhesive rubber 7. ... Rib 8 ... Washer 9 ... Lid

Claims (4)

A fine component storage container characterized in that a conductive adhesive rubber is laid as an elastic member for holding a component on the inner bottom portion of a synthetic resin case, and a static elimination ground is provided to simultaneously hold the component and remove dust . The fine component storage container according to claim 1, wherein an eyelet is formed on the bottom of the synthetic resin case as the static elimination ground . Using a metal or non-ferrous metal that can be energized as a static elimination ground, or using a conductive synthetic resin, it is arranged so as to connect the inner surface and the outer surface of the synthetic resin case, and the bottom surface of the elastic member for holding fine parts, The fine component storage container according to claim 1 , wherein static electricity is released by contacting the side surface. Synthesis rib (foot) on the outer bottom in case made resins have a, the outsole arranged neutralization grounding the unit, said charge removing earth metal which can energize the outer surface side or non-ferrous metal plate, spring or conductive elastic body , arranged conductive foam, fine component container according to any one of claims 1 to claim 3, characterized in that to prevent rattling of the synthetic resin case.

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