JPH0630686Y2 - Case - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention relates to a case for storing an article such as a photomask, which is extremely disliked by dust contamination.

[Prior art]

A photomask, which is one of the electronic components, cannot exhibit its design performance even if one dust adheres to it, so it must be handled with sufficient care. However, it is necessary to bring the photomask newly designed by the design department or the like to the user as a sample or to carry it to the factory which is the production site. The photomask must be managed so that dust does not adhere even during such transportation. For this reason, the photomask is currently placed in a plastic case, the gap between the case body and the lid is completely sealed with adhesive tape, etc., sealed so that dust does not enter at all and carried directly by hand. It is exposed.

[Problems to be solved by the device]

As described above, the intrusion of dust during transportation can be prevented by completely sealing the gap portion of the plastic case with the adhesive tape or the like. However, since the photomask stored in the case is not fixed, it may rattle during transportation.If the photomask substrate is glass, it damages the plastic case and is scraped by the photomask substrate. The powder from the case sometimes adhered to the photomask. Further, when the lid is opened, dust attached on the lid may enter the case and attach to the photomask. Therefore, when the lid is opened, it is necessary to keep it horizontal and carefully lift it straight up, and further move it horizontally to prevent dust from entering the case. For this reason, it is possible to easily make a seal to prevent dust from entering the gap between the main body and the lid, and also to securely fix the contained object, for example, a photomask, so that the case may not be damaged during transportation. It has been desired to devise a case that can be done and that does not allow dust and the like accumulated on the lid body to adhere to the stored object when the lid body is opened.

[Means for Solving the Problems]

The present invention has been made in order to solve the above-mentioned problems of the prior art, and is a case in which a main body and a lid are openably and closably connected via a hinge, and the inner surface of the main body and the lid is a storage object. A fixing member for fixing each of them, the outer surface of the portion where the main body and the lid meet is flush with each other, the hinge is provided downwardly from the joining portion, and faces the hinge. The case is characterized in that the locking portion provided on the side surface portion is also located below the meeting portion.

【Example】

Next, the present invention will be described in detail based on an embodiment shown in the drawings. The case according to the present invention is a case in which the main body 1 and the lid 2 are openably and closably connected to each other by a pair of hinges 3 provided on one side surface thereof, and the horizontal cross section is flat and square. A flat plate-shaped bulging portion 11 parallel to the opening end is provided on the side surface outer peripheral portion of the main body 1, and the bulging portion 11 is missing at two locations near both ends of one side surface portion. A bulging portion 11b extends downward from the bulging portion 11 facing the deficient portion 11a, and a hinge 3a is connected to the lower end of the bulging portion 11b in an L-shape. The hinge 3a is a hinge on the main body 1 side that constitutes the hinge 3 that connects the main body 1 and the lid body 2 in an openable and closable manner. A fixing member 1 for surely fixing the photomask 5 to a position near the corner of the inner surface (bottom surface in this case) of the main body 1.
2 are erected. The fixing member 12 is composed of an L-shaped positioning member 12a that performs horizontal positioning and a support member 12b that supports the positioning member 12b in the vertical direction. Support member 1
The tip end portion 12b 'of 2b is formed of polypropylene having a high elasticity in a columnar shape and is embedded in a columnar base portion so as to have a cushioning function, and the height is the first step 12a of the L-shaped positioning member 12a. It is adjusted slightly higher than ′.
The main body 1 excluding the supporting member 12b is formed of ABC resin, and a conductive treatment (for example, a resin in which an antistatic material is dispersed) is provided to protect the pattern drawn on the photomask 5 housed inside from electrical disturbance. Is subjected to etching treatment with an alkaline solution). The lid body 2 attached to the opening portion of the main body 1 has a bulging portion 21 whose opening end side of the side surface is flush with the outer surface of the flat plate-like bulging portion 11 of the main body 1. It can be attached to the side surface of the main body 1. The hinge 3b on the lid body 2 side that constitutes the hinge 3 from the bulging portion 21 is the hinge 3 of the main body 1.
It is provided by the same method as a. Reference numeral 3c is a pin that forms the hinge 3 by connecting the hinge 3a of the main body 1 and the hinge 3b of the lid body 2 in an openable and closable manner. Incidentally, the main part of the lid body 2 is made of ABS resin by being subjected to a conductive treatment so that an electric disturbance does not reach the photomask 5 housed therein similarly to the main body 1, and the main body 1 is fixed to the inner surface thereof. Member 12
The fixing member (not shown) corresponding to the supporting member 12b of FIG. The case according to the present invention in which the main body 1 and the lid body 2 are openably and closably connected by the hinge 3 is provided with the hinge portion 3 for securely engaging the lid body 2 with the main body 1. It is provided on the side surface portion facing the existing side surface portion. Reference numeral 4a is a locking groove on the main body 1 side that constitutes the locking portion 4 provided in the defective portion 11a 'where the bulging portion 11 of the main body 1 is defective,
Reference numeral 4b is a locking claw on the lid 2 side that constitutes the locking portion 4 provided at the tip of the bulging portion 22 extending from the bulging portion 21 of the lid 2 to the main body 1 side. In the case of the present invention having the above structure, the photomask 5 is placed on the fixing member 12 of the main body 1, the lid 2 is closed via the hinge 3, and the locking claw 4b is locked in the locking groove 4a. When stopped, the photomask 5 is securely fixed by the fixing member, so that the photomask 5 does not move and collide inside the case during transportation. In addition, in the case according to the present invention, the bulging portion 11 of the main body 1 and the bulging portion 21 of the lid 2 are provided flush with each other, and the hinge 3 and the locking portion 4 are downward from the peripheral edge A where they meet, that is, the main body. Since they are provided separately on the side of No. 1, it is possible to easily and surely seal the peripheral edge A with an adhesive tape or the like. Therefore, there is no possibility that dust may enter the case even during transportation / storage and contaminate the photomask 5 being stored. When opening the case and taking out the photomask 5 inside, if the case 2 is held substantially horizontally and the lid 2 is gently opened on the hinge 3 side, even if dust is accumulated on the lid 2, the inclination The dust does not enter the main body 1 only by falling in the direction of the hinge 3. Therefore, the photomask 5 stored in the case is not contaminated by the dust accumulated on the lid 2. Note that the shapes of the hinge 3 and the locking portion 4 are not limited to the shapes shown in the above embodiment, as long as they can be separated from the peripheral edge A. That is, as shown in FIG. 4 for the locking portion 4, the T-shaped member 4c is provided on the side surface portion of the main body 1 and the defective portion 1 of the bulging portion 11 is provided.
1a 'is provided on the lower side, and a groove member 4d is provided at the tip of a bulging portion 22 extending toward the main body 1 on the side surface of the lid 2.
Is provided, the groove member 4d is brought into contact with the cutout portion 4c 'of the T-shaped member 4c, and the C-shaped sliding member 4e is slidably attached to the main body 1 and the lid 2 It is also possible to make the engagement and disengagement more reliable. Further, the fixing member 12 provided on the inner surface of the case may be of any other shape, such as a three-point support structure, as long as it can securely fix the photomask 5. The main part of the main body 1 and the lid 2 is AB
In addition to S resin, acrylic resin, polypropylene resin,
Although polyethylene resin or the like can be used, it is desirable that any resin is used after being subjected to the conductive treatment as shown in the embodiment so that the electric disturbance does not reach the inside of the case.

[Effect of device]

As described above, the case according to the present invention is a case in which the main body and the lid body are openably and closably connected via a hinge, and the inner surface of the main body and the lid body are respectively provided with fixing members for fixing an object to be stored. The outer surface of the portion where the main body and the lid meet is flush with each other, and the hinge is provided downwardly spaced from the joining site and is provided on the side surface portion facing the hinge. Since the stopper is also located below the meeting site, the stored object such as a photomask can be securely fixed and stored. Further, since there is no hinge or locking portion on the peripheral edge where the main body and the lid body meet, the gap between the main body and the lid body can be easily and surely stitched with an adhesive tape or the like. Furthermore, since the lid is installed on one side of the main body via a hinge, if the main body is held horizontally and opened, the dust on the lid will only fall toward the hinge and will not fall into the case. . Therefore, according to the case of the present invention, the stored object such as the photomask is not contaminated during transportation, storage, and opening / closing of the lid.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a part of a case according to the present invention by cutting out, FIG. 2 and FIG. 3 are explanatory views showing an essential part of one embodiment, and FIG. 4 is an illustration of another embodiment. It is explanatory drawing which shows a part. 1 ... Main body, 11 ... Swelling part, 12 ... Fixing part, 2 ... Lid body, 21 ... Swelling part, 3 ... Hinge, 4 ... Locking part, 4a ... Locking groove, 4b ... Locking claw, 4c ... T-shaped member, 4d ... Groove member, 5 ... Photomask.

Claims (1)

[Scope of utility model registration request] 1. A case in which a main body and a lid are openably and closably connected to each other via a hinge, and a fixing member for fixing an object to be stored is provided on an inner surface of the main body and the lid, respectively. The outer surface of the portion where the lid and the lid meet is flush with each other, and the hinge is provided so as to be spaced downward from the meeting portion, and the locking portion provided on the side surface portion facing the hinge is also provided at the meeting portion. A case characterized by being located below.