JP2015111630A - Sheet-like cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheet-like cover which can be easily fitted and removed and can be versatilely used even when hole size varies.SOLUTION: A sheet-like cover 100 comprises: a flexible sheet 110; and a plurality of locking claws 121, 122 and 123 which are deflectable, with respect to the sheet 110, in a direction perpendicular to the sheet surface. This constitution enables the sheet-like cover 100 to be easily fitted and removed. If a hole is large enough so that two or more locking claws can be inserted therein with the hole covered, the sheet 110 is less likely to move when the hole is covered. Consequently, the sheet-like cover 100 can be versatilely used even when the whole size varies.

Description

  The present invention relates to a sheet-like lid that is used, for example, to close a hole in a housing that houses an electronic component.

  Conventionally, there are various forms of housings that house electronic components. Of these forms, a hole is formed in a part of the housing for maintenance of the accommodated electronic component and for checking the state of the accommodated electronic component, and the hole is usually closed with a lid. In addition, there is a case in which a lid is removed when performing a maintenance operation of a part, a state confirmation of a part, or the like (for example, Patent Document 1).

  Such a lid is detachably attached to the housing by, for example, a screw. Some of them are removably attached to the housing by locking claws formed on the edge of the lid.

JP 2011-058706 A

  By the way, in the structure which attaches a lid | cover using fixing tools, such as a screw, attachment and removal of a lid | cover take time, and it is troublesome when it is desired to perform maintenance work frequently.

  Moreover, in the structure which attaches a lid | cover with a latching claw, compared with the case where a screw is used, there exists an advantage that attachment and removal of a lid | cover are easy. However, since the size of the hole that can be attached is determined by the position of the locking claw, it is generally necessary to prepare a dedicated lid corresponding to the size of the hole.

  The present invention has been made in consideration of the above points, and provides a sheet-like lid that is easy to attach and detach and can be used universally even when the sizes of the holes are different.

One aspect of the sheet-like lid of the present invention is:
A flexible sheet;
A portion formed between the pair of cuts by a pair of cuts formed from the outer edge of the sheet toward the inner side of the sheet, and the outer edge of the sheet sandwiched between the pair of cuts is a free end. A plurality of locking claws that can be biased in a direction perpendicular to the sheet surface with respect to the sheet body, with the inner ends of the pair of cuts as fixed ends;
It comprises.

  According to the present invention, it is possible to realize a sheet-like lid that can be easily used and removed and can be used for general purposes even when the sizes of the holes are different.

The top view which shows the structure of the sheet-like cover which concerns on embodiment The top view which shows the state which attached the sheet-like cover to the housing | casing which accommodates an electronic component Sectional drawing which shows the A-A 'cross section of FIG. The top view which shows the other structural example of a sheet-like lid Schematic plan view showing a state where the hole is actually closed by the sheet-like lid of FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a plan view showing a sheet-like lid according to an embodiment of the present invention. The sheet-like lid 100 includes a flexible sheet body 110 (hereinafter, the sheet body 110 may be abbreviated as the sheet 110) and a plurality of locking claws 121, 122, 123 formed on the sheet 110. It is configured.

  In this embodiment, the sheet 110 is made of polycarbonate. The material of the sheet 110 is not limited to polycarbonate, and any material having flexibility may be used. However, it is preferable that the material of the sheet 110 has heat resistance against heat generated from the electronic component. In addition, the sheet 110 is preferably made of a material having transparency that allows an object present on one side of the sheet 110 to be visually recognized from the other side of the sheet 110. Since the sheet 110 of the present embodiment is made of polycarbonate, it has such heat resistance and transparency.

  In the case of the present embodiment, the sheet 110 has a rectangular shape, two locking claws 121 and 122 are formed on opposite sides of the rectangle, and one locking claw 123 is formed with the locking claws 121 and 122. It is formed on the side adjacent to the side.

  The locking claw 121 is a portion formed between the pair of cuts 121 a and 121 b by a pair of cuts 121 a and 121 b formed from the outer edge position of the sheet 110 toward the inside of the sheet 110. The locking claw 121 has the outer edge of the sheet 110 sandwiched between the pair of cuts 121a and 121b as a free end 121c and the inner end of the pair of cuts as a fixed end 121d in a direction perpendicular to the sheet surface with respect to the sheet 110. It can be biased.

  Similarly, the locking claw 122 is a portion formed between the pair of cuts 122a and 122b by a pair of cuts 122a and 122b formed from the outer edge position of the sheet 110 toward the inside of the sheet 110. The locking claw 122 has an outer edge of the sheet 110 sandwiched between the pair of cuts 122a and 122b as a free end 122c and an inner end of the pair of cuts as a fixed end 122d in a direction perpendicular to the sheet surface with respect to the sheet 110. It can be biased.

  Similarly, the locking claw 123 is a portion formed between the pair of cuts 123a and 123b by a pair of cuts 123a and 123b formed from the outer edge position of the sheet 110 toward the inside of the sheet 110. The locking claw 123 has the outer edge of the sheet 110 sandwiched between the pair of cuts 123a and 123b as the free end 123c and the inner end of the pair of cuts as the fixed end 123d in a direction perpendicular to the sheet surface with respect to the sheet 110. It can be biased.

  In addition, circular notches 121e, 121f, 122e, 122f, 123e, and 123f are formed so as to be adjacent to the inner ends (fixed ends 121d, 122d, and 123d) of the notches 121a, 121b, 122a, 122b, 123a, and 123b. Has been. The circular notches 121e, 121f, 122e, 122f, 123e, and 123f cause the sheet 110 to tear with use, and the cuts 121a, 121b, 122a, 122b, 123a, and 123b extend inward of the sheet 110. Can be prevented.

  FIG. 2 is a plan view showing a state in which the sheet-like lid 100 is attached to the housing 200 that houses the electronic components. FIG. 3 is a cross-sectional view showing a cross section A-A ′ of FIG. 2.

  As shown in FIG. 3, a circuit board 300 and an electronic component 310 such as a capacitor and a coil are accommodated in the housing 200. A fan 311 is accommodated in the housing 200. Normally, the sheet-like lid 100 is attached to the upper surface of the housing 200 so as to cover the hole 210 formed in the upper surface of the housing 200. When maintaining the electronic component 310 and the fan 311, the user removes the sheet-like lid 100 from the housing 200.

  As shown in FIGS. 2 and 3, when the sheet-like lid 100 is attached to the upper surface of the housing 200, the tips (free ends) of the locking claws 121, 122, and 123 are on the back side of the upper surface of the housing 200. Plugged in. As described above, the sheet-like lid 100 is held on the upper plate of the casing 200 with the holes 210 closed by sandwiching the upper plate of the casing 200 by the locking claws 121, 122, 123 and the sheet main body 110. Is done. Actually, the user inserts the tip (free end) portion of the locking claws 121, 122, 123 into the back side of the upper surface of the housing 200 while bending the locking claws 121, 122, 123 downward, and the holes are completely formed. The sheet 110 is moved on the top surface of the housing 200 so as to be closed, and the position is adjusted.

  Here, in the state where the locking claws 121, 122, 123 are inserted, the range in which the sheet 110 can move in the surface direction is regulated by the positions and lengths of the cuts 121a, 121b, 122a, 122b, 123a, 123b. If the positions and lengths of the cuts 121a, 121b, 122a, 122b, 123a, 123b are appropriately determined according to the size and shape of the hole 210 to be closed, the possibility that the sheet 110 is displaced from the hole 210 can be reduced.

  When removing the sheet-like lid 100 from the housing 200, the sheet 110 may be bent until the locking claws 121, 122, 123 reach positions where they are removed from the housing 200.

  Thus, the sheet-like lid 100 can be easily attached to the housing 200 and can be easily detached from the housing 200.

  As described above, according to the present embodiment, the flexible sheet 110 and the plurality of locking claws 121, 122, 123 that can be biased in the direction perpendicular to the sheet surface with respect to the sheet 110 are provided. By providing, the sheet-like lid | cover 100 with easy attachment and removal is realizable. Further, if the hole 210 has a size that allows the two or more locking claws 121, 122, and 123 to be inserted with the hole 210 closed, the sheet 110 is difficult to move with the hole 210 closed. As a result, even when the size of the hole 210 is different, it can be used for general purposes.

  In addition, since the material of the sheet 110 is transparent so that an object existing on one side of the sheet 110 can be viewed from the other side of the sheet 110, the casing can be formed without removing the sheet-like lid 100. This is convenient because the state of the electronic component 310 and the fan 311 housed in the 200 can be observed from the outside of the housing 200. For example, connection failure of the electronic component 310 can be confirmed without removing the sheet-like lid 100.

  The shape of the flexible sheet, the number of locking claws, the size of the locking claws, and the arrangement of the locking claws are not limited to those shown in FIG. The sheet-like lid of the present invention may be configured as shown in FIG. 4, for example. 4 includes a flexible flexible sheet main body 410 (hereinafter, the sheet main body 410 may be abbreviated as the sheet 410), and a plurality of locking claws 421 formed on the sheet 410. 422, 423, 431, 432, 433.

  The locking claws 421, 422, and 423 form a first group, and the locking claws 431, 432, and 433 form a second group. The first group and the second group face each other. Each of the first and second groups has a plurality of locking claws having different lengths. That is, the latching claws 421, 422, and 423 constituting the first group have different lengths, and similarly, the latching claws 431, 432, and 433 constituting the second group are respectively lengths. Is different. Furthermore, the plurality of locking claws 421, 422, and 423 included in the first group change from a long one to a short one when viewed from the first direction (the direction from the top to the bottom in FIG. 4). The plurality of locking claws 431, 432, and 433 included in the second group, on the contrary, from the shortest to the longest when viewed from the first direction. They are in order.

  FIG. 5 is a schematic plan view showing a state where the hole is actually closed by the sheet-like lid 400 of FIG. A hatched portion 500 in FIG. 5 indicates a hole that is closed by the sheet-like lid 400. FIG. 5A shows a state in which the sheet-like lid 400 closes the large hole 500. In this case, all the locking claws 421, 422, 423, 431, 432, and 433 are used (that is, inserted into the back side of the housing). ). On the other hand, the locking claws 421, 422, 431, and 432 are used in the case of FIG. 5B, the locking claws 421 and 433 are used in the case of FIG. 5C, and the locking claws 422 and 433 in the case of FIG. 5D. Is used.

  Thus, even if the size and shape of the hole 500 change variously, the sheet-like lid 400 has at least one locking claw of the first group and at least of the second group facing the first group. Since it is locked by one locking claw, the rotation of the sheet 410 in the surface direction is suppressed, and the sheet 410 is not easily displaced from the hole 500.

  As described above, the shape of the flexible sheet, the number of locking claws, the size of the locking claws, and the arrangement of the locking claws are not limited to those shown in FIGS. May be, for example, a circle or a pentagon or more polygon. Further, the larger the number of the locking claws and the larger the size of the locking claws, the more various holes can be accommodated. However, if the number of the locking claws is increased too much, there are many notches forming the locking claws on the hole, and the strength for closing the hole may be reduced.

  Therefore, as shown in FIGS. 1 and 4, it is preferable to provide a locking claw near the position where the sheet faces. If it does in this way, it will become possible to latch in the position which plugs up a hole, without rotating a sheet-like lid with as few latching claws as possible.

  Furthermore, the hole that is covered by the sheet-like lid of the present invention is not limited to the hole of the housing that houses the electronic component.

  The above-described embodiments are merely examples of implementation in carrying out the present invention, and the technical scope of the present invention should not be construed as being limited thereto. That is, the present invention can be implemented in various forms without departing from the gist or the main features thereof.

  The sheet-like lid of the present invention can be used as a lid for closing a hole.

100, 400 Sheet-like lid 110, 410 Sheet body 121, 122, 123, 421, 422, 423, 431, 432, 433 Locking claw 121a, 121b, 122a, 122b, 123a, 123b Notch 121c, 122c, 123c Free end 121d, 122d, 123d Fixed end 121e, 121f, 122e, 122f, 123e, 123f Circular notch 200 Case 210, 500 hole 300 Circuit board 310 Electronic component 311 Fan

Claims (7)

A flexible sheet;
A portion formed between the pair of cuts by a pair of cuts formed from the outer edge of the sheet toward the inner side of the sheet, and the outer edge of the sheet sandwiched between the pair of cuts is a free end. A plurality of locking claws that can be biased in a direction perpendicular to the sheet surface with respect to the sheet body, with the inner ends of the pair of cuts as fixed ends;
A sheet-like lid comprising: At least two of the plurality of locking claws have different lengths from the free end to the fixed end,
The sheet-like lid according to claim 1. The plurality of locking claws are:
A first group of one or more locking claws;
A second group consisting of one or more locking claws, facing the first group;
The sheet-like lid according to claim 1 or 2, comprising: Each of the first and second groups has a plurality of locking claws having different lengths from the free end to the fixed end,
The sheet-like lid according to claim 3. The plurality of locking claws included in the first group are arranged in order from the longest to the shortest when viewed from the first direction,
The plurality of locking claws included in the second group are arranged in order from the shortest to the longest when viewed from the first direction.
The sheet-like lid according to claim 4. The flexible sheet has transparency that allows an object present on one side of the sheet to be visually recognized from the other side of the sheet.
The sheet-like lid according to any one of claims 1 to 5. Formed of a material comprising polycarbonate,
The sheet-like lid according to any one of claims 1 to 6.

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