JP2015009172A - Filter structure body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filter structure body being detachably attached to a resin filter or a filter frame installed at an intake port of a device.SOLUTION: A filter structure body 11 has a filter body 14 formed in a bag shape by the circular knitting of PET fibers and polyurethane rubber 18 is attached to the whole circumference of an open part 17. When used, a resin filter 77 is inserted into the filter structure body 11 via the open part 17 and then fixed with the polyurethane rubber 18. The resin filter 77 in this state is installed at the intake port of a bathroom ventilation dryer. Thereby, the filter structure body 11 is improved in usability and becomes efficient since the range of a mountable resin filter is expanded.

Description

  The present invention relates to a filter structure, and more particularly, to a filter structure that is detachably attached to a resin filter or a filter frame installed at an intake port of a device.

  Various bathroom ventilation dryers have been proposed that are installed on a ceiling in a bathroom to ventilate the bathroom and also dry laundry in the bathroom.

  FIG. 10 is a perspective view schematically showing an example of the external shape of a bathroom ventilation dryer.

  Referring to the figure, bathroom ventilation dryer 61 is installed on ceiling 65, and intake is performed via an intake port (not shown). At that time, as the bathroom ventilation dryer 61, there are provided a type in which a resin filter (not shown) is installed at the air inlet and a type in which a filter frame is installed.

  FIG. 11 is a schematic exploded perspective view of a bathroom ventilation dryer in which a resin filter is installed, and FIG. 12 is a schematic exploded perspective view of a bathroom ventilation dryer in which a filter frame is installed.

First, referring to FIG. 11, a bathroom ventilation dryer 71 is a type in which a resin filter 77 having a mesh surface 76 covering an air inlet 73 is installed. The resin filter 77 is attached by being inserted from a filter insertion port 74 provided in the bathroom ventilation dryer 71. Such a type of bathroom ventilation dryer is disclosed in Patent Document 1 and Patent Document 2.
Next, referring to FIG. 12, the bathroom ventilation dryer 81 is a type in which a filter frame 87 to which a non-woven fabric 86 is attached is installed in the air inlet 83. Such a type of bathroom ventilation dryer is disclosed in Patent Literature 3 and Patent Literature 4.

JP 2008-190730 A JP 2010-14040 A JP-A-8-280998 JP 2011-69554 A

  By the way, in the bathroom ventilation dryer 71 shown in FIG. 11, when dust adheres to the mesh surface 76 of the resin filter 77 by use, the resin filter 77 must be removed to remove the dust. There is a risk that dust will fall into the bathroom (not shown) or into the bathroom ventilation dryer 71. Further, when the resin filter 77 is washed with water to remove dust, the mesh surface 76 may be inadvertently broken. Furthermore, when the mesh surface 76 is rough, fine dust may pass through the mesh surface 76 and enter the bathroom ventilation dryer 71.

  On the other hand, in the bathroom ventilation dryer 81 shown in FIG. 12, if the nonwoven fabric 86 dedicated to the filter frame 87 is not used, the pressure loss of the bathroom ventilation dryer 81 increases and the intake air amount decreases. The temperature inside the dryer 81 rises, and a thermostat (not shown) may operate. If it becomes so, the temperature in a bathroom cannot be raised with the bathroom ventilation dryer 81, and the function of the bathroom ventilation dryer 81 will fall. Moreover, it is unhygienic and not preferable to wash and repeatedly use the nonwoven fabric 86 to which dust adheres. In addition, although it is possible to use a filter (not shown) with a small pressure loss instead of the nonwoven fabric 86, in such a case, dust passes through the filter and the interior of the bathroom ventilation dryer 81 becomes dirty. In addition, it is conceivable to use a charging filter (not shown) instead of the non-woven fabric 86. However, when used for the bathroom ventilation dryer 81, water vapor adheres to the surface of the charging filter. Performance is not fully demonstrated.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a filter structure that can be detachably attached to a resin filter or a filter frame installed in an intake port of a device.

  In order to achieve the above object, the invention described in claim 1 is a filter structure that is detachably attached to a resin filter or a filter frame installed in an intake port of a device, and has an open portion at least on one side. And it is provided with a tubular filter body configured to be stretchable and a ring-shaped band body which is attached to the entire circumference of the open portion and is stretchable.

  If comprised in this way, the range of the resin filter and filter frame which can be attached will be expanded.

  According to a second aspect of the present invention, in the configuration of the first aspect of the present invention, the filter body is formed in a bag shape having one open portion.

  If comprised in this way, the attachment position of a filter main body will be decided.

  According to a third aspect of the present invention, in the configuration of the first or second aspect of the present invention, the device includes a bathroom ventilation dryer, and the filter body is formed to be 60 mesh or less with fibers having a maximum thickness of 300 deniers. It is what is done.

  If comprised in this way, there will be little influence of the action | operation of a bathroom ventilation dryer, and the volume attached to a resin filter etc. will also become low.

  According to a fourth aspect of the present invention, in the configuration of the third aspect of the present invention, the filter body is formed by circular knitting continuous in the circumferential direction.

  If comprised in this way, it will become easy to extend in the circumferential direction irrespective of the characteristic of a fiber.

  As described above, the invention according to claim 1 is an efficient filter structure that improves the usability because the range of resin filters and filter frames that can be attached is expanded.

  In addition to the effect of the first aspect of the invention, the attachment position of the filter body is determined, so that the attachment of the filter structure is facilitated.

  In addition to the effect of the invention of claim 1 or 2, the invention described in claim 3 is less affected by the operation of the bathroom ventilation dryer, and the volume attached to a resin filter or the like is reduced, so that an efficient filter It becomes a structure.

  In addition to the effect of the invention described in claim 3, the invention described in claim 4 is easily stretched in the circumferential direction regardless of the characteristics of the fiber, and therefore can be easily attached to a resin filter or the like.

It is the perspective view which showed the external appearance shape of the filter structure by 1st Embodiment of this invention. FIG. 2 is an enlarged view of an “X” portion shown in FIG. 1. It is the perspective view which showed schematically the external appearance shape of a filter structure and a resin filter before attaching the filter structure shown in FIG. 1 to a resin filter. It is the front view which showed schematically the external appearance shape of the resin filter after attaching the filter structure shown in FIG. 1 to the resin filter. It is sectional drawing of the VV line shown in FIG. FIG. 6 is a schematic exploded perspective view showing an example of an attaching process of the resin filter shown in FIGS. 4 and 5 to a bathroom ventilation dryer. It is a general | schematic disassembled perspective view which showed the attachment process to the bathroom ventilation dryer of the filter frame in which the filter structure which concerns on this invention was attached. In the filter structure shown in FIG. 1, it is the perspective view which showed schematically the external appearance shape of a filter structure and a resin filter before attaching a filter structure to another resin filter. It is the figure corresponding to FIG. 8, Comprising: It is the front view which showed the attachment process of the filter structure roughly. It is the perspective view which showed schematically one example of the external shape of a bathroom ventilation dryer. It is a general | schematic disassembled perspective view of the bathroom ventilation dryer in which a resin filter is installed. It is a schematic exploded perspective view of the bathroom ventilation dryer in which a filter frame is installed.

  FIG. 1 is a perspective view showing an external shape of a filter structure according to a first embodiment of the present invention, and FIG. 2 is an enlarged view of an “X” portion shown in FIG.

  With reference to these drawings, the filter structure 11 is configured around a filter main body 14 formed in a bag shape. The filter body 14 has one open portion 17, and a polyurethane rubber 18 is attached to the entire periphery of the open portion 17. The filter body 14 is configured to be stretchable by continuously knitting a polyethylene terephthalate (PET) fiber 15 having a fiber thickness of 20 denier (about 45 μm) in the circumferential direction.

  Next, the attachment of the filter structure shown in FIG. 1 to the resin filter of the bathroom ventilation dryer will be described.

  FIG. 3 is a perspective view schematically showing the appearance of the filter structure and the resin filter before the filter structure shown in FIG. 1 is attached to the resin filter, and FIG. 4 is a filter structure shown in FIG. 5 is a front view schematically showing the appearance of the resin filter after being attached to the resin filter, and FIG. 5 is a cross-sectional view taken along the line V-V shown in FIG. 4.

  Referring to these drawings, when attaching, first, as shown in FIG. 3, a resin filter 77 is inserted into the filter structure 11 through the open portion 17 in which the polyurethane rubber 18 is expanded. At this time, since the filter main body 14 is formed by circular knitting and is configured to be easily stretched in the circumferential direction, the resin filter 77 can be easily inserted. Further, since the filter main body 14 is formed in a bag shape, the attachment position of the filter main body 14 is determined on the back side, so that the filter structure 11 can be easily attached. Furthermore, since the filter structure 11 is fixed to the resin filter 77 by the polyurethane rubber 18 attached to the entire periphery of the open portion 17, there is no possibility that the filter structure 11 will accidentally fall from the resin filter 77.

  By attaching the filter structure 11 in this way, the resin filter 77 is covered with the filter body 14 as shown in FIGS.

  Next, installation of the resin filter to which the filter structure is attached to the bathroom ventilation dryer will be described.

  FIG. 6 is a schematic exploded perspective view showing an example of a process of attaching the resin filter shown in FIGS. 4 and 5 to a bathroom ventilation dryer.

  With reference to the figure, the resin filter 77 to which the filter structure 11 is attached can be installed in the air inlet 73 of the bathroom ventilation dryer 71. At that time, the resin filter 77 is attached by being inserted from the filter insertion port 74. The filter main body 14 is made of fibers having a thickness of 20 deniers and is highly stretchable, so that the filter main body 14 is close to the shape of the resin filter 77. Therefore, the resin filter 77 can be smoothly inserted into the filter insertion port 74 without being affected by the filter structure 11.

  Up to this point, the installation of a bathroom ventilation dryer of the type that installs a resin filter at the intake port has been explained. However, the bathroom ventilation dryer of the type that installs a filter frame at the intake port is also as follows. The filter structure according to the present invention can be applied.

  FIG. 7 is a schematic exploded perspective view showing a process of attaching the filter frame to which the filter structure according to the present invention is attached to a bathroom ventilation dryer.

  Referring to (1) of FIG. 7, in the bathroom ventilation dryer 81 in which the filter frame 87 is installed at the air inlet 83, after the filter structure 11 is attached to the filter frame 87, (2) of FIG. The filter frame 87 may be installed at a predetermined position of the bathroom ventilation dryer 81 as shown in FIG.

  By attaching the filter structure 11 to the resin filter 77 (see FIG. 6) or the filter frame 87 (see FIG. 7) in this way, dust is captured by the filter body 14, so that the dust is removed from the bathroom ventilation dryer 71 ( There is no risk of entering the interior of the bathroom ventilation dryer 81 (see FIG. 7). Moreover, since the filter main body 14 has a circular knitted mesh structure, the air flow is not hindered when the bathroom ventilation dryer 71 (or 81) is inhaled by attaching the filter structure 11. Furthermore, since the filter main body 14 is made of PET fiber and has water resistance, the filter structure 11 to which dust adheres can be removed, washed with water, and used repeatedly, which is economical.

  The filter structure according to the present invention can also be applied to resin filters and filter frames having different sizes. This will be described below using a resin filter as an example.

  FIG. 8 is a perspective view schematically showing the appearance of the filter structure and the resin filter before the filter structure is attached to another resin filter in the filter structure shown in FIG. FIG. 8 is a front view schematically showing the attachment process of the filter structure, corresponding to FIG.

  First, referring to (1) of FIG. 8 and FIG. 9, when used for a small resin filter 27, the resin is first introduced into the filter structure 11 through the open portion 17 in which the polyurethane rubber 18 is expanded. Insert the filter 27.

  Next, as shown in (2) of FIG. 9, the end of the remaining filter body 14 of the filter structure 11 on the opening portion 17 side is twisted. Finally, as shown in FIG. 9 (3), the part of the open part 17 side of the twisted part of the filter structure 11 is turned over to the resin filter 27 side and covered with the resin filter 27. The filter structure 11 is fixed to the resin filter 27 via the polyurethane rubber 18. In this way, the filter structure 11 can be stably attached regardless of the size of the resin filter.

  In the above embodiment, the filter structure is attached to the resin filter or the filter frame of the bathroom ventilation dryer, but the resin filter or the filter frame that is detachably attached to the air intake of an appliance such as an air conditioner. Can be applied similarly.

  In the above embodiment, polyurethane rubber is used as the elastic ring-shaped band. However, any other elastic band-shaped band may be used.

  Furthermore, in the above embodiment, the filter main body is formed in a bag shape, but the filter main body has an open portion at least on one side and can be extended and contracted, as in the present invention. The effect of.

  Furthermore, in the above embodiment, there is one open portion, but two may be provided to form the filter body in a cylindrical shape.

  Furthermore, in the above embodiment, the filter body is formed of PET fiber. For example, nylon, polylactic acid, polypropylene (PP), acrylonitrile-butadiene-styrene copolymer synthetic resin (ABS), polymethyl methacrylate ( PMMA), polycarbonate, polyacetal and the like.

  Furthermore, in the above embodiment, the filter body is formed by circular knitting so that it can easily extend in the circumferential direction regardless of the characteristics of the fiber. It may be formed by knitting or weaving.

  Furthermore, in the above embodiment, the filter main body is formed only of PET fibers, but an antibacterial substance or the like may be kneaded into the fibers or attached with a binder.

  Furthermore, in the above embodiment, the filter body is formed of a specific value of denier. However, for use in a resin filter of a bathroom ventilation dryer or a filter frame, the filter body is made of fibers having a thickness of up to 300 denier. If it is formed to 60 mesh or less, it does not affect the operation of the bathroom ventilation dryer as in the present invention.

The features of the present invention will be described more specifically with reference to the following examples and comparative examples. However, the scope of the present invention is not limited to the examples.
1. Measurement of the temperature in the bathroom when the bathroom ventilation dryer is operated As the filter according to the example, the filter structure of the present invention having a certain number of meshes and deniers is used, while the filter according to the comparative example has a mesh number of Different filter structures of the present invention and non-woven fabrics with a basis weight and denier number in a certain range were used. Each filter is (1) not attached to a resin filter (hereinafter referred to as “no filter (A)”), and (2) attached to a resin filter (hereinafter referred to as “with filter (B)”). Then, the bathroom ventilation dryer was operated, and for each of (1) and (2), the temperature in the bathroom was measured when the temperature increase in the bathroom was stopped by operating the thermostat of the bathroom ventilation dryer.

In this example, the filter structure had a filter body formed from PET fibers, while the nonwoven fabric was made of PET. In both the examples and comparative examples, the type of bathroom ventilation dryer and the measurement conditions in the bathroom were the same as follows.
Types of bathroom ventilation dryer:
・ Product made by Max Co., Ltd.
Bathroom condition:
・ Bathroom size Width 110cm x Depth 160cm x Height 200cm
・ No windows in the bathroom ・ Bathroom door is closed ・ Bathroom is in a dry state ・ Bathroom temperature 27 ℃ before the start of the experiment (before the bathroom ventilation dryer is activated) After that, I activated the bathroom ventilation dryer)
2. Evaluation method When the difference between “without filter (A)” and “with filter (B)” is less than 3 ° C., it is evaluated as “◯”, and when the difference is 3 ° C. or more, it is evaluated as “×”. . These results are summarized in Table 1.

表１から、フィルター本体は、最大３００デニールの太さの繊維により６０メッシュ以下に形成されている（実施例１〜実施例３）と、浴室換気乾燥機の作動への影響が少ないことがわかった。

From Table 1, it can be seen that the filter body is less than 60 mesh of fibers with a maximum thickness of 300 denier (Examples 1 to 3) and has little effect on the operation of the bathroom ventilation dryer. It was.

  On the other hand, when the denier of the filter main body is 300, when the mesh becomes 120 mesh, the temperature in the bathroom when the thermostat of the bathroom ventilation dryer was operated was low (Comparative Example 1). Moreover, when the nonwoven fabric filter was attached, the temperature in the bathroom when the thermostat of the bathroom ventilation dryer was operated was low regardless of the basis weight of the nonwoven fabric and the number of deniers (Comparative Example 2 to Comparative Example 6). These results show that when a 120-mesh filter body or a non-woven filter is attached, the amount of air intake by the bathroom ventilation dryer decreases and the temperature inside the bathroom ventilation dryer rises, which increases the temperature inside the bathroom so much. This is probably due to the thermostat being activated. Note that it is expected that the same result can be obtained even if the same experiment is performed by replacing the resin filter with the filter frame.

DESCRIPTION OF SYMBOLS 11 ... Filter structure 14 ... Filter body 15 ... PET fiber 17 ... Opening part 18 ... Polyurethane rubber 27, 77 ... Resin filter 71, 71 ... Bathroom ventilation dryer 87 ... Filter frame In addition, the same code | symbol in each figure is the same or equivalent Indicates the part.

Claims (4)

A filter structure that can be detachably attached to a resin filter or a filter frame installed at the air inlet of the device,
A cylindrical filter body having an open part at least on one side and configured to be stretchable;
A filter structure, which is attached to the entire circumference of the open portion and includes an elastic ring-shaped band body.   The filter structure according to claim 1, wherein the filter main body is formed in a bag shape having one open portion. The equipment includes a bathroom ventilation dryer,
The filter structure according to claim 1 or 2, wherein the filter body is formed to be 60 mesh or less with fibers having a thickness of 300 denier at the maximum.   The filter structure according to claim 3, wherein the filter body is formed by circular knitting continuous in a circumferential direction.

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