JP3147672U - Hot air blower filter - Google Patents

Abstract

Provided is a filter for a hot air blower or the like that has a longer life than a conventional filter and can be easily attached to a suction port portion of a hot air blower or the like.
A filter medium is disposed on a peripheral side surface of a bottomed cylindrical main body having one end face closed, and outside air passes through the filter medium and flows into the main body. It is a filter attached to the inlet of the hot air blower through which the outside air filtered out from the outlet 13 provided on the other end surface of the hot air blower. An opening 12 is provided at the closed bottom, and an inner cylinder 20 having a bottomed cylindrical shape is provided from the opening 12 toward the inside of the main body 11. The filter medium 25 is also disposed on the peripheral side surface of the inner cylinder 20, and the outside air passes through both the filter medium 25 on the peripheral side of the inner cylinder 20 and the filter medium 15 on the peripheral side of the main body 11. 11 flows into the interior. A connecting member that can be connected and fixed to the blower suction port can be detachably connected and fixed to the end surface portion on the outlet 13 side of the main body 11 via a connection fixing means such as a band member.
[Selection] Figure 2

Description

  The present invention relates to an improvement in a filter used by being attached to a suction port portion of a hot air generator (hot air blower) or the like.

The applicant of the present application is a person who has been manufacturing and selling hot air generators as a main product for many years. This hot air generator is a hot air that combines a heater and a blower to discharge hot hot air. It is a blower.
This hot air generator has been used in various factories requiring hot air from room temperature to 1000 ° C. for industrial use, for drying various articles, for draining water, for shrink packaging of resin containers, etc. .

Such a hot air generator is used for various applications as described above. For example, when drying various articles in a predetermined drying chamber or drying furnace, the hot air is circulated. In such a case, it is necessary to remove oil, moisture mist, dust, dust, etc. generated in the hot air circulation path.
Furthermore, in the factory environment as well, all kinds of dirt and dust components such as oil and moisture mist, dust and dust are floating, and this has many adverse effects on the hot air generator, and its maintenance and lifespan etc. Has had a great influence.

Therefore, the applicant of the present application aims to eliminate drainage, packaging, and contamination of various articles to be dried, etc., or to prolong the maintenance cycle of the hot air generator and further to prolong its life. We have developed various filters to be installed on the inlet side of the hot air generator.
Examples of conventional filters of this type include those described in the following non-patent documents.
This document is a catalog issued by the applicant of the present application. As described above, what is described in this catalog is attached to the inlet of a hot air generator or a blower.

FIG. 4 shows this filter, in which (A) is a perspective view showing a state where the filter is attached to the suction port of the hot air generator, and (B) is a longitudinal sectional view of the filter.
The filter 50 includes a cylindrical body 51, one end surface 52 is closed, and the other end surface 53 is provided with an outlet 54 connected to a suction port of a hot air generator. A filter medium 55 made of a polyester fiber woven fabric is bent and arranged in a bellows shape in the circumferential direction on the peripheral side surface of the main body 51.
The inflow air passes through the bellows-shaped filter medium 55 as shown by arrows in the figure, flows from the passage 56 at the center of the main body 51 to the outlet 54, and is filtered during that time to generate hot air. It flows into the inside from the suction port 63 of the machine 60.

The filter 50 is connected and fixed to a pipe 64 that is connected and fixed to the suction port 63 of the blower 61 provided in the hot air generator 60 via a connection portion 58 attached to the outlet 54.
The structure connected to the suction port 63 of the hot air generator 60 can be designed completely freely, and the filter is installed in a lateral position via a straight pipe instead of the elbow pipe 64 as shown in FIG. You can also.
Published by Takezuna Seisakusho Co., Ltd. “General catalog of optional parts” (Catalog No. OP) Published 2008-2009 June 2008 (page 25)

The above conventional filter is a dedicated filter for attaching to a suction port such as a hot air generator or a blower. The entire filter is one complete, and when the filter medium has reached the end of its life, the entire filter must be replaced. Don't be.
Of course, it is possible to clean the filter medium, but the life of one filter ends when it becomes difficult to use the filter medium.

Therefore, in the present invention, it is possible to easily attach to a suction port portion of a hot air generator or the like, and the problem is to extend the life of the filter in the same manner as a conventional filter.
Another object of the present invention is to devise a structure that can be easily attached and detached in order to facilitate cleaning of the filter medium of the filter.

  In order to solve the above-mentioned problem, a first one of the present invention is such that a filter medium is disposed on a peripheral side surface of a bottomed cylindrical body having a closed bottom on one end surface, and outside air is filtered on the peripheral side. A filter that is attached to a blower inlet of a hot air blower or the like that flows into the body portion and flows into the body portion and flows out of the filtered air from an outlet provided in the other end surface portion of the body portion. An inner cylinder having a bottomed cylindrical shape is formed from the opening toward the inside of the main body, and a filter medium is disposed on the peripheral side surface of the inner cylinder so that the outside air is surrounded by the inner cylinder. It is a filter for a hot air blower or the like, characterized in that it can pass through both the filter medium on the side surface and the filter medium on the peripheral side surface of the main body and flow into the main body.

  According to a second aspect of the present invention, in the first invention, the filter medium is formed of a synthetic fiber woven fabric such as polyester bent in a bellows shape in the circumferential direction of the main body portion and the inner cylindrical body portion. It is a filter for hot air blowers and the like.

  According to a third aspect of the present invention, in the first or second aspect of the invention, a connecting member that can be connected and fixed to a blower suction port such as a hot air blower is connected to the main body portion via an annular connecting and fixing means such as a band member. A filter for a hot air blower or the like, characterized in that it can be detachably connected and fixed to an end surface on the outlet side.

  According to a fourth aspect of the present invention, in the third aspect of the invention, the joining member joins the end surface portion screwed into a blower inlet of a hot air blower or the like and the outer peripheral edge portion of the filter outlet side end surface portion. It is a filter for hot air blowers characterized by having a substantially pan-shaped outer shape having a portion.

  In the first one of the present invention, the filter medium is disposed on the peripheral side surface of the bottomed cylindrical body, and the outside air passes through the filter medium and flows into the main body. In the filter from which the outside air filtered from the outflow port flows out, an opening is provided at the closed bottom, and another inner cylinder having a bottomed cylindrical shape is provided from the opening toward the inside of the main body. Since the filter medium is also disposed on the peripheral side surface of the inner cylinder, outside air flows through both the filter medium on the peripheral side surface of the inner cylinder and the filter medium on the peripheral side surface of the main body and flows into the main body. It becomes.

Therefore, in the present invention, the area provided with the filter medium does not double, but the outside air is also filtered by the filter medium provided on the peripheral side surface of the inner cylinder, and the area of the filter medium is compared with the conventional one. As a result, the life of the entire filter medium can be greatly extended.
Of course, it is also possible to extend the interval of the filter cleaning time.

Furthermore, the filter according to the present invention is attached to the inlet portion of the blower installed in the hot air generator, but the maintenance period of the hot air generator itself can be extended, and the life of the device itself can be extended. Can be extended.
The filter according to the present invention can be mounted not on the suction port side of the hot air generator or the like but on the discharge port side.

  In the second one of the present invention, the same effect as described above is exhibited, and a synthetic fiber woven fabric such as polyester is used as a filter medium, and it is bellows in the circumferential direction of the main body and the inner cylinder. It is limited to what is bent into a shape.

In the third aspect of the present invention, it is possible to more easily attach and detach the filter according to the present invention using an annular band member or the like using a connecting member that can be connected and fixed to a blower inlet such as a hot air blower. it can.
As a result, the filter can be easily removed and washed, and after washing, it can be easily attached as well.

  In the 4th thing of this invention, the connection member is formed in a substantially pan lid shape, and the effect similar to the said 3rd invention is exhibited.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
1A and 1B illustrate an embodiment of a filter according to the present invention, in which FIG. 1A is a perspective view seen from the upper side, and FIG. 1B is a perspective view seen from the lower side.
A filter 10 according to the present invention includes a main body portion 11 having a substantially cylindrical shape. One end surface portion (upper end surface portion in the drawing) of the main body portion 11 is provided with an opening 12, and the other end surface portion (see FIG. An opening portion is also provided in the middle lower end surface portion, and the opening portion of the lower end surface portion serves as a filtered air outlet 13.

Outside air flows from the opening 10 and the filter medium 15 disposed on the peripheral side surface of the main body 11, and although not clearly shown in the drawing, the filter medium 15 is not shown on the peripheral side surface of the inner cylinder 20. The air passing through the disposed filter medium flows into the main body 10 and the filtered air flows out from the outlet 13.
As the filter medium, a woven fabric made of polyester fiber bent in a bellows shape in the circumferential direction of the main body portion 10 is used in the present embodiment.
The internal structure of the filter 10 will be described with reference to FIG.

2A and 2B show the filter of the above embodiment, in which FIG. 2A is a partially cutaway plan view, and FIG. 2B is a cross-sectional view taken along the line S-S in FIG.
As can be seen from these drawings, an inner cylinder 20 is provided from the opening 12 toward the inner side.
The inner cylindrical body 20 is also closed at one end face (lower end face in the figure) and provided with an opening 12 on the other end face (upper end face in the figure).

Outside air flows from the opening 12, passes through the filter medium 25 provided on the peripheral side surface of the inner cylinder 20, passes through the passage 17 inside the main body 10, and flows out the filtered air from the outlet 13. .
Accordingly, in the present invention, the outside air is filtered by both the filter medium 15 provided on the peripheral side surface of the main body 10 and the filter medium 25 provided on the peripheral side surface of the inner cylindrical body 20, and the filter medium 15 The area could be greatly increased compared to the conventional one.

The filter media 15 and 25 are made of the same material and are bent in a bellows shape in the circumferential direction of the main body 10 as shown in the cutout portion in FIG.
Moreover, in this embodiment, since the length of the main-body part 10 in FIG. 2 (B) is not so large, the support frame which supports the filter media 15 and 25 is not used.
If the length of the filter medium in the vertical direction is longer than this, if necessary, a spiral metal wire that is conventionally used may be arranged inside the filter medium, A reinforcing member or the like having a large number of holes formed in the outer peripheral surface of the cylindrical body can be disposed inside the filter medium.
Such a frame body that maintains the shape of the filter medium, that is, a shape-retaining member, can be employed freely.

FIG. 3 shows a state in which the filter according to the embodiment of the present invention is mounted on a hot air generator, in which (A) is an exploded perspective view and (B) is an exploded front view.
In FIG. 3, the filter according to the present invention is mounted in a lateral position.
When the filter 10 is mounted, the connecting member 30 that can be screwed into the portion of the suction port 63 of the blower 61 provided in the hot air generator 60 is used here.

  As shown in the figure, the connecting member 30 has a substantially pan lid shape in which a through hole 31 is provided in the central portion, and a plurality of screw insertion holes 32 provided around the through hole 31. It is screwed to a portion of the suction port 63 provided in the blower 61. The surface provided with the plurality of screw insertion holes 32 is an end surface portion that is screwed to the suction port side of the hot air blower.

  The other side of the connecting member 30, that is, the end edge 35 on the filter side, can be adapted so as to cover the outer peripheral edge 17 of the end surface of the main body 11 of the filter 10 according to the present invention. That is, the end edge portion 35 of the connecting member 30 becomes a joint portion that joins the outer peripheral edge portion 17 of the end face portion of the filter 10 on the outlet 13 side.

Thereafter, both the outer peripheral edge portion 17 of the main body portion 11 and the end edge portion 35 of the connecting member 30 can be fixed by the band member 18.
The edge portion 35 does not cover the outer peripheral edge portion 17 of the filter 10, but can be joined so as to simply abut and be fixed by the band member 18.

  The band member 18 has a U-shaped cross section in its annular main body portion 18h. The band member 18 sandwiches both the outer peripheral edge portion 17 of the end face of the filter 10 and the end edge portion 35 of the connecting member 30, and the fixing lever 18k is watched. By rotating around and along the annular main body 18h side, both can be fixed.

Instead of the band member 18, a plurality of simple clip-like fixing members may be used to connect and fix the filter 10 according to the present invention to the connecting member 30, and various fixing means may be used. .
However, by using the annular band member 18, it is possible to connect and fix the filter 10 according to the present invention to the connecting member 30 screwed to the portion of the suction port 63 of the hot air generator 60 with one touch. Therefore, the band member 18 is optimal as the fixing means.

Although the embodiment has been described above, various design changes can be made in the present invention as follows.
The external shape and size of the main body having a substantially cylindrical shape can be variously modified as required. Similarly, the size of the inner cylinder can be changed according to the outer shape and size of the main body.
For example, the outer shape of the main body portion can be implemented not only as a cylindrical shape but also as a cylindrical body whose bottom surface portion is substantially elliptical or polygonal.
In that case, it is necessary to match the shape of the filter side end portion of the connecting member, and it is necessary to adopt the shape of the band member that matches this.

The filter medium provided on the peripheral side surface of the main body and the peripheral side surface of the inner cylinder can also be selected as necessary.
When the polyester fiber woven fabric is used, dust or the like having a particle diameter of about 3 microns or more can be collected and washed.
The filter medium is bent in a bellows shape to increase the surface area of the filter medium, but the bending length can also be designed freely.

The connecting member for connecting the filter to the suction port of the hot air blower also has a substantially pan lid shape with a through hole provided in the center, and the suction of the hot air generator at the periphery of the through hole. Other configurations are completely free as long as they can be screwed to the mouth portion and the other edge can be matched with the outer peripheral edge of the filter.
Other fixing means can be employed for the band member for connecting and fixing the connecting member and the filter, but such an annular band member is optimal for connecting and fixing with one touch.

  As described above, according to the present invention, an inner cylinder is further provided inside the filter main body, which has never been conceived before, and a filter medium is also provided on the peripheral side surface of the inner cylinder, so that a filter is further arranged inside the filter. It is possible to provide a very revolutionary filter that has a higher filtering efficiency and a longer service life with a single filter, thereby extending the service life and maintenance period of the connected hot air generator. Was able to.

One Embodiment of the filter concerning this invention is illustrated, The (A) is the perspective view seen from the upper side, The (B) is the perspective view seen from the downward side. The filter which concerns on the said embodiment of this invention is shown, The (A) is a partially notched top view, The (B) is the SS sectional view taken on the line of FIG. 2 (A). The state which mounts | wears with the filter which concerns on the said embodiment of this invention to a hot-air generator is shown, The (A) is the disassembled perspective view, The (B) is an exploded front view. The conventional filter is shown, The (A) is a perspective view which shows the state with which the hot air generator was mounted | worn, and the (B) is a longitudinal cross-sectional view of a filter.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Filter 11 Main-body part 12 Opening part 13 Outflow port 15, 25 Filter medium 17 Outer periphery part (of filter)
18 Band member 20 Inner cylinder 30 Connecting member 35 End edge (of connecting member)

Claims (4)

The filter medium is disposed on the peripheral side surface of the bottomed cylindrical body having a closed bottom on one end surface, and the outside air passes through the filter medium on the peripheral side and flows into the main body, and the other end surface of the main body. In a filter attached to a blower inlet such as a hot air blower through which the filtered outside air flows out from an outlet provided in
An opening (12) is provided in the closed bottom, and an inner cylinder (20) having a bottomed cylindrical shape is formed from the opening (12) toward the inside of the main body (11), and the inner cylinder (20 The filter medium (25) is also disposed on the peripheral side surface of the inner cylinder (20), and the outside air has both the filter medium (25) on the peripheral side surface of the inner cylinder (20) and the filter medium (15) on the peripheral surface of the main body (11) A filter for a hot air blower or the like, characterized by being configured to pass through and flow into the main body (11).   The filter medium (15, 25) is formed of a synthetic fiber woven fabric such as polyester bent in a bellows shape in the circumferential direction of the main body (11) and the inner cylinder (20). The filter for hot air blowers etc. of description.   A connecting member (30) that can be connected and fixed to a blower intake port such as a hot air blower is attached to and detached from the end surface on the outlet (13) side of the main body (11) via an annular connecting and fixing means such as a band member (18). The filter for a hot air blower or the like according to claim 1 or 2, wherein the filter can be connected and fixed freely.   The connecting member (30) has an end surface portion screwed to the blower inlet side of a hot air blower or the like, and a substantially pan lid having a joint portion joined to the outer peripheral edge portion (17) of the end surface portion on the filter outlet (13) side. The filter for a hot air blower or the like according to claim 3, wherein the filter has a shape outer shape.