JP2007091255A - Blank housing structure, and blank housing case - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a housing structure and a housing case which can effectively prevent blanks from sticking to the internal surface. <P>SOLUTION: This housing structure for blanks is equipped with the case 20, a magnet sheet 24, and a steel plate. In this case, the case 20 is equipped with a housing space S inside, has an opening 21 communicating with the housing space, and is formed of an insulating material. The magnet sheet 24 is arranged outside of the case, and is arranged to be proximal at a degree by which the magnetic force reaches at least inside of the case. On the steel plate, the case is placed in such a manner that the magnet sheet may be inserted in-between. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a box-shaped case for housing a blank, which is a vibrating element formed of a piezoelectric material such as quartz, and an improvement of a blank housing structure.

Packages such as small information devices such as HDDs (hard disk drives), mobile computers, IC cards, mobile communication devices such as mobile phones, car phones, and paging systems, and measuring devices such as gyro sensors Piezoelectric devices such as piezoelectric vibrators and piezoelectric oscillators that house a piezoelectric vibrating piece inside are widely used.
As the piezoelectric vibrating piece, a thin plate mainly made of a piezoelectric material such as quartz, that is, a blank which is a small and extremely thin quartz plate obtained by cutting a wafer is used.

In such a blank manufacturing process, a blank housing case to be processed is used so as to be attached to a machine for selecting the frequency or a machine for selecting a defect.
Originally, blanks are, for example, 1 mm to 10 mm square and extremely small and thin, with a thickness of 30 μm to 0.5 mm. Therefore, these blanks are cut out from a quartz wafer and accommodated for inspection. There was a problem that the payout did not go well with the storage box.

FIG. 7: is a schematic perspective view which shows the blank storage box 1 which is such a blank storage case (refer patent document 1, FIG. 1).
In the figure, the storage box 1 is a box made of a special resin, that is, made of a conductive resin, so that static electricity does not easily accumulate.
That is, when the blank 4 is put into the inside from the opening 2 of the storage box 1 and is held in the storage space, static electricity is generated inside. Then, when the blank 4 is to be taken out (to be paid out), there is a problem that a part of the blank 4 is stuck to the bottom surface 3 and cannot be taken out.
Therefore, in the thing of FIG. 7, the unevenness | corrugation is formed in the bottom face 3, and it tries to prevent the blank 4 from adhering to the bottom face 3. FIG.

JP2000-281169A

  However, with such a structure, the storage box 1 has not only inferior storage capacity compared to a flat curved surface, but also to the inner surface of the storage box 1 of the blank 4 because the bottom surface 3 has a curved surface to form irregularities. Is not sufficiently prevented, resulting in a problem that a considerable amount of blank is attached and cannot be dispensed.

  The present invention has been made to solve the above problems, and an object of the present invention is to provide a storage structure and a storage case that can effectively prevent the blank from sticking to the inner surface.

  According to the first aspect of the present invention, there is provided a case formed of an insulating material having an accommodating space inside and having an opening communicating with the accommodating space, and disposed outside the case, and at least the case This is achieved by a blank housing structure comprising a magnet sheet disposed close to the extent to which a magnetic force is applied and an iron plate on which the case is placed so that the magnet sheet is interposed therebetween.

  Further, in the second invention, the above-mentioned object is provided on the inside of the case main body formed of an insulating material provided with an accommodation space inside and having an opening leading to the accommodation space, This is achieved by a blank storage case including at least a magnet sheet disposed so as to have a magnetic force in the case.

  According to a third invention, in the configuration of the second invention, the magnet sheet is fixed to a bottom surface of the case body.

  According to a fourth invention, in the configuration of the third invention, the magnet sheet is fixed to a side surface of the case body.

  Furthermore, in the fifth aspect of the present invention, the above-mentioned object is provided with a case main body formed of an insulating material provided with an accommodating space inside and having an opening leading to the accommodating space, and at least a bottom portion of the case. This is achieved by a blank storage case in which the storage space is made magnetized by mixing a magnetic material into the constituent material.

FIG. 1 is a schematic front view of a frequency sorter that is an apparatus used in a part of a blank manufacturing process, and FIG. 2 is a schematic side view of the apparatus of FIG.
In FIG. 1, the frequency sorter (hereinafter referred to as “apparatus 10”) includes a base 11 and a working unit 12 that is installed on the base 11 and is a clean room. As shown in FIG. 2, the working unit 12 includes an air introduction unit 13 and an air discharge unit 14 so that clean air is introduced.

The working unit 12 is provided with a transport system 15 to which a blank (not shown), which is a quartz vibrating element obtained by cutting a quartz wafer according to a predetermined crystal axis orientation, for example, is sent.
The blank supplied from the transport system 15 is applied with a drive voltage by the frequency measuring unit 16 in FIG. 2 and its oscillation frequency is measured.
The blanks that have been measured are stored in a plurality of storage cases (storage boxes) 18 arranged on the iron plate 17a that forms the upper surface of the storage case base 17 on the storage case base 17 of FIG. It is like that.
In addition, the storage case of the code | symbol 18 in FIG. 1 has shown the several storage case, and each storage case is shown in FIG.

FIG. 3 is a schematic perspective view showing the first embodiment of the housing case.
In FIG. 3, the storage case 20 is a box-shaped container that is long in the depth direction and relatively thin in the juxtaposed direction, and has an opening 21 at the upper end and can store a sufficient number of blanks 23. It has a relatively deep form.
The housing case 20 is made of a plastic such as polyvinyl chloride or polytetrafluoroethylene (PTFE), a ceramic such as zirconia, an insulating material such as glass, or a dielectric, and is itself made of a material that does not conduct electricity.

In a state where a plurality of storage cases 20 are arranged in a row as illustrated, the storage cases 20 are placed on the magnet sheet 24.
The magnet sheet 24 is a rubber (resin) -like sheet mixed with magnetic powder, and is commercially available as, for example, a trade name; magnet sheet (color) (part number; Mac-E300) (manufactured by KOKUYO Corporation). It can be used suitably.
The magnet sheet 24 is laid on the storage case base 17 of the apparatus 10 of FIG. 1, and the storage case base 17 is formed of an iron plate, thereby forming a blank storage structure.

The present embodiment is configured as described above, and the magnetic field formed by the magnet sheet extends inside the housing case 20. Thereby, the static electricity removal effect is seen in the storage case 20.
For this reason, after the blanks 23 for which the frequency measurement has been completed are stored in the storage cases 20, for example, when the blanks 23 are taken out from the storage case 20 during the next operation, the action of static electricity in the storage case 20. Is effectively prevented from sticking to the inner surface of the housing case 20 and is paid out appropriately.

As described above, in the present embodiment, the static electricity is appropriately removed by the action of the magnet sheet 24 on the housing case 20, so that a curved surface is formed on the inner surface as a countermeasure against sticking of the inner surface of the case due to static electricity as in the past. Therefore, it is not necessary to avoid the formation of corners as much as possible, and a special form is not necessary. Therefore, as a normal rectangular case as shown in the figure, a sufficient accommodating capacity of the blank 23 is secured in the internal space (accommodating space) S. it can.
Further, it is not necessary to form irregularities for preventing sticking on the bottom surface which is the innermost side of the storage case 20, and furthermore, as a material constituting the storage case 20 itself, generation of static electricity is conventionally performed. In order to prevent as much as possible, it is not necessary to use a special material such as a resin mixed with a conductor, so that the manufacturing cost is also low.

FIG. 4 shows a second embodiment.
In the figure, the storage case 20-1 is supported by a support body 31 extending in the lateral direction, and is in the form of a test tube as a whole. The material of the housing case 20-1 is the same as that of the first embodiment.
A magnet sheet 24 is disposed below the storage case 20-1, and the magnet sheet 24 is laid on the storage case base 17 of the apparatus 10 of FIG.
This embodiment is configured as described above, and even if the shape of the housing case is changed, the same effect can be exhibited and static electricity can be removed. Thereby, the situation that a blank sticks inside storage case 20-1 and cannot be taken out can be prevented effectively.

FIG. 5 is a schematic cross-sectional view showing the main part of the third embodiment.
In the figure, the storage case 20-2 is the same as the first embodiment in that it is placed on the magnet sheet 24.
This embodiment is different from the first embodiment in that a magnet sheet 24-1 is further arranged or joined to the side surface of the housing case 20-2.
By adopting such a configuration, in the housing case 20-2, the blank 23 is effectively prevented from sticking to the inner surface due to the action of static electricity, and is appropriately paid out.

FIG. 6 is a schematic perspective view showing the fourth embodiment.
The storage case 20-3 is different from the first embodiment in that the cut magnetic sheet 24-2 is integrally fixed or joined to the bottom surface of the storage case 20-3 by sticking or the like. It is. Reference numeral 31 denotes an iron plate on the surface of the storage case base 17 of the apparatus 10 of FIG.
Thereby, while being able to acquire the effect similar to 1st Embodiment, since the magnet sheet is integrated in this accommodating case 20-3 itself, space saving can be achieved.

The present invention is not limited to the above-described embodiment. Each configuration of the embodiment may be omitted as appropriate and combined with other configurations not shown.
Further, the present invention is not limited to a blank, and can be applied to a thin piece housing or a storage case made of an insulating material that is small and thin.

The schematic front view of the apparatus by which the storage case of this invention embodiment is utilized. The schematic side view of the apparatus by which the storage case of this invention embodiment is utilized. The schematic perspective view of the storage case of 1st Embodiment. The schematic front view of the storage case of 2nd Embodiment. The schematic sectional drawing of the principal part of the storage case of 3rd Embodiment. The schematic perspective view of the storage case of 4th Embodiment. The schematic block diagram of the conventional blank storage box.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Frequency sorter, 20, 20-1, 20-2, 20-3 ... Housing case, 21 ... Opening, 23 ... Blank, 24, 24-1, 24-2 ...・ Magnet sheet S: Internal space (accommodating space)

Claims (5)

A case formed of an insulating material having an accommodating space inside and having an opening leading to the accommodating space;
A magnet sheet disposed outside the case and disposed at least close enough to exert a magnetic force in the case;
An iron plate on which the case is placed so that the magnet sheet is interposed therebetween. A case body formed of an insulating material having an accommodation space therein and having an opening leading to the accommodation space;
A blank storage case, comprising: a magnet sheet disposed outside the case and disposed at least close enough to exert a magnetic force in the case.   The blank storage case according to claim 2, wherein the magnet sheet is fixed to a bottom surface of the case body.   The blank storage case according to claim 3, wherein the magnet sheet is fixed to a side surface of the case main body. A case body formed of an insulating material having an accommodation space therein and having an opening leading to the accommodation space;
A blank storage case, wherein a magnetic material is mixed into a material constituting at least a bottom portion of the case so that the storage space is magnetized.

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