JPH08136024A - Filter apparatus for ventilation fan - Google Patents

Abstract

PURPOSE: To contrive altering of the height of a filter freely according to the form of a ventilation fan by arranging filter beam members to be mounted in an arch across specified parts of a filter frame body in such a manner as to allow the altering of the height of the filter and a filter to be put on the filter beam members. CONSTITUTION: A filter 10 for a ventilation fan has a filter frame body 12 comprising four filter part frame bodies 11 bent at the right angle at an intermediate part. Then, four flexible and expansible filter beam members 14 are arranged to be each mounted in an arch between oblong cylindrical beam mounting parts 13 respectively molded integral on an internal surface of the central part of one side part 11A of each filter member frame body 11 and on an external surface of the central part of the other side part 11B thereof. A filter 15 comprising unwoven cloth is arranged to be put on the filter beam members 14 and four magnet fixing devices 17 to get a filter frame body 12 attracted securely on a ventilation fan 16 for business use.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation fan filter device, and more particularly to a ventilation fan filter device capable of freely changing the filter height according to the form of the ventilation fan.

[0002]

2. Description of the Related Art Generally, a commercial ventilation fan having a motor portion protruding into a room is attached to a wall surface of a kitchen such as a restaurant or a ramen shop. By the way, when food is cooked or cooked on the stove in this kitchen, water vapor, vaporized oil and soot are generated, and these adhere to the blades of the ventilation fan. If left unattended, there is a risk that the rotation speed of the motor will decrease and the ventilation efficiency will deteriorate, or the oil adhering to the blades will be scattered and stain the surrounding area. A ventilation fan filter device to be covered from the indoor side has been developed. As a conventional ventilation fan filter device, for example, 1990
Published Japanese patent application No. 2-290 published on January 30
As shown in "Filter device for attaching intake port of ventilation fan etc." in Japanese Patent No. 212, a rectangular filter frame body mounted on an exterior case of a ventilation fan and a plurality of curved frame members protruding outward from an outer end surface of the filter frame body. It is known to have a filter beam member and a filter to be put on the filter beam member.

[0003]

However, in the above-described ventilation fan filter device of the prior art, the filter beam member is fixed to the filter frame body, and the curvature is relatively small and constant. However, there is a problem that the ventilation fan filter device cannot be mounted on the commercial ventilation fan in which the motor part of the ventilation fan projects to the indoor side. Moreover,
Commercially available ventilation fans have a variation in the height of the motor that protrudes toward the indoor side of the fan, and can be installed on one manufacturer's model but not on another manufacturer's model. was there.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a ventilation fan filter device in which the filter height can be freely changed according to the form of the ventilation fan.

[0005]

A method according to the above-mentioned object.
The ventilation fan filter device described above includes a filter frame body, a filter beam member that is hung between the predetermined portions of the filter frame body in an arch shape so that the filter height can be changed, and a filter that is placed on the filter beam member. And have. In addition,
The filter frame body referred to here may be either a stretchable or non-stretchable frame body in the vertical direction and / or the horizontal direction. When a stretchable frame is used, a filter partial frame may be used which is bent in a right-angled L shape and both sides thereof are joined at almost arbitrary positions. Further, as the filter beam member whose filter height can be changed, for example, the beam member can be made stretchable to change the curvature rate of the filter beam member, or the filter beam member can be made flexible. The contact and separation of the portion of the filter frame over which the filter beam member is spanned, the inclination angle of the filter beam member at the connecting portion with the filter frame, and any other It can be a type. here,
As the beam member having elasticity, it is preferable to use a structure having a pair of divided beam members, the intermediate portions of which are slidably coupled to each other so that the total length can be changed.

[0006]

In the filter device for the ventilation fan according to the first aspect, the filter beam member is bridged between predetermined portions of the filter frame, and the filter beam member is covered with the filter.
At this time, by changing the filter beam member according to the height of the filter, it is possible to cover the ventilation fan having a high height or the ventilation fan having a low height without impairing the appearance depending on the form of the ventilation fan.

[0007]

Embodiments of the present invention will now be described with reference to the accompanying drawings to provide an understanding of the present invention. 1 is a perspective view of a ventilation fan filter device according to a first embodiment of the present invention, FIG. 2 is an enlarged plan view of a filter partial frame, FIG. 3 is an enlarged bottom view of a filter partial frame, and FIG.
7 is an enlarged side view of the filter partial frame body, FIG. 5 is an enlarged explanatory view of an essential part showing a connection state of the filter partial frame bodies, FIG. 6 is an enlarged plan view of an essential part showing a connection state of the filter partial frame bodies, FIG. (A) is a plan view of the filter beam member in a contracted state,
FIG. 7B is a plan view of the filter beam member in an expanded state, and FIG.
Is an enlarged perspective view of a main part showing a connection state of the filter beam member and the filter partial frame, FIG. 9 is an enlarged perspective view showing a use state of the magnet fixture, and FIG. 10 (a) is attached to a ventilation fan having a low height. FIG. 10B is a side view showing a state, FIG. 10B is a side view showing a state of being mounted on a ventilation fan having a high height, FIG. 11 is a perspective view showing another way of tensioning the filter beam member, and FIG. FIG. 13 is an enlarged side view of an essential part showing a changed filter height of the ventilation fan filter device according to the embodiment, FIG. 13 is an enlarged plan view of an essential part showing the changed filter height, and FIG. 14 is an enlarged sectional view of the filter beam member. FIG. 15 is an enlarged front view of a filter beam member of a ventilation fan filter device according to a third embodiment of the present invention, FIG. 16 is an enlarged side view of the filter beam member, and FIG. 17 is a fourth embodiment of the present invention. Of filter beam members for ventilation fan filter devices FIG. 18 is an enlarged perspective view of essential parts showing a filter height changing state of a ventilation fan filter device according to a fifth embodiment of the present invention, and FIG. 19 is a ventilation fan filter according to a sixth embodiment of the present invention. FIG. 20 is an enlarged side view of an essential part of a filter height changing state of the device, FIG. 20 is an enlarged side view of a filter fixing device of a ventilation fan filter device according to a seventh embodiment of the present invention, and FIG. 21 is an enlarged front view of the filter fixing device. FIG. 22 is an enlarged side view showing a usage state of the filter fixture, and FIG. 23 is an enlarged side view of a main part showing a hooking portion of a filter beam member of a ventilation fan filter device according to an eighth embodiment of the present invention. FIG. 24 is an enlarged side view of an essential part showing a hooking portion of a filter beam member of a ventilation fan filter device according to a ninth embodiment of the present invention.

First, the first aspect of the present invention will be described with reference to FIGS.
A ventilation fan filter device according to the embodiment will be described. FIG.
As shown in FIG. 3, the ventilation fan filter device 10 according to the first embodiment of the present invention includes a filter frame body 12 including four filter partial frame bodies 11 that are bent at right angles in an intermediate portion, and each filter partial frame body. Four flexible and stretchable wires that are laid in an arch shape between the horizontally long cylindrical beam attachment portions 13 integrally formed on the inner surface of the central portion of one side portion 11A of the eleventh portion and the outer surface of the central portion of the other side portion 11B. Of the filter beam member 14, a filter 15 made of a non-woven fabric that covers the filter beam member 14, and four magnet fixtures 17 for adsorbing and fixing the filter frame body 12 to a ventilation fan 16 for business use. is there.

As shown in FIGS. 2, 3, 5 and 6, one side portion 11A and the other side portion 11B of the filter part frame body 11 are made of plastic such as polypropylene, ABS or polystyrene and have a substantially J-shaped cross section. It is a long member, and one is integrally formed in a right angle L shape in a state of being inverted by 180 degrees. Corrugated corrugated fitting portions 11b are formed on the back surfaces of the short side walls 11a of the both side portions 11A and 11B, and one side portion 1 of one of the filter partial frame bodies 11 connected to each other.
1A and the other side portion 11B of the other filter partial frame 11 are connected to each other between the waveform fitting portions 11b without displacement (see FIGS. 5 and 6). Here, the corrugated fitting portion is not limited to the corrugated body having a trapezoidal cross section shown in the enlarged views of FIGS. It also includes a case where arcuate grooves into which the protrusions are fitted are formed at regular intervals.

In addition, a hook projection 19 of a total of four filters 15 in the shape of an arrowhead is integrally formed on one end of the inner surface of the filter part frame body 11 near the bent part and in the center part.
Since the beam attachment portion 13 is provided on the inner surface of the central portion on the side of the other side portion 11B, the latching protrusion 19 provided there is provided at the central portion of the beam attachment portion 13. Each beam mounting part 1
The filter beam member 14 is provided on both inner side surfaces of the through hole 13a of
An engaging projection 13b to which the bifurcated tip 14a is engaged is integrally formed (see FIG. 8). Further, the other side portion 11
At the other end of the inner surface of B, the locking ridges 20 of the magnet fixing tool 17 are integrally formed on both sides of the beam mounting portion 13 in between. A take-out port 20a for the hooking piece 17a of the magnet fixing tool 17 is cut out on the bent side of the filter projection frame 11 of the hooking projection 20.

As shown in FIGS. 1 and 7, the filter beam member 1
4 is made of the same material as the filter partial frame 11, and has a wall thickness (for example, 1.5 to
A pair of filter partial beam members 21 having a diameter of 2.5 mm)
A and 21B are assembled slidably with respect to each other. Each of the filter partial beam members 21A and 21B has a pine needle-shaped beam body 23 in which the bases of two parallel slide frames 22 are connected, and the length of the slide frame 22 is at the center of the bases. The extension protrusion 24 extending in the direction is integrally formed. A backing plate 25 having the same length as the width of the bases of the filter part beam members 21A and 21B is arranged orthogonally to the tip portion 14a of the extension protrusion 24. A central slider 26, which has substantially the same thickness as the members 21A and 21B, is integrally formed in a state of being applied to the bases of the beam members 21A and 21B.

An upper slider 27, which is slightly longer than the backing plate 25, is integrally formed near the center of the center slider 26 in the same direction as the backing plate 25. The raised portion 27a for preventing disengagement after assembly is integrally formed. Also, each slide frame 2
On the outer side surface of the tip end portion 14a of No. 2, there is formed a recess 28 which can be hooked on the hooking projection 13b of the beam mounting portion 13,
Further, the vicinity of the tip end portions of both slide frames 22 are integrally connected by a connecting portion 29, and the surface of the connecting portion 29 on the side of the central slider 26 extends over both slide frames 22 and the filter partial beam member 21A. , 21B are integrally formed with a slide stopper 30 having the same thickness.

To assemble the filter partial beam members 21A and 21B, the two sliders 21A and 21B are oriented so that their tip portions are oriented in opposite directions, and the central slider 26 and the upper slider 2 are respectively arranged.
The surfaces on the 7 side are abutted with each other, and then the spaces between the respective slide frames 22 are expanded, and the other members 21A, 21
By submerging the upper slider 27 of B, one central slider 26 is arranged in the slide gap 22a between the other slide frames 22, and one upper slider 27 abuts the slide surface of the other slide frame 22. It is assembled and assembled. Therefore, the filter partial beam members 21A and 21B
Holds the upper sliders 27 with both hands and slides them both inward and outward, so that one central slider 26 abuts the other slide stopper 30 in the shortest state of the filter beam member 14. In the longest state, one central slider 26 almost comes into contact with the base portion of the other beam body 23 (see FIG. 7).

As shown in FIG. 9, in the magnet fixture 17, a thin iron plate 31 is pressed to form a magnet housing portion 31a, a beam member sliding portion 31b and a backing portion 31c.
Is provided, and the magnet 32 is housed in the housing portion 31a. 1 and 10, reference numeral 33 is a motor portion of the ventilation fan 16, reference numeral 34 is a support frame of the ventilation fan 16, reference numeral 35 is a blade of the ventilation fan 16, and reference numeral 36 is an opening of a mounting wall.

Next, the operation of the ventilation fan filter device 10 according to the first embodiment of the present invention will be described. As shown in FIG. 1, when the ventilation fan filter device 10 is attached to the ventilation fan 16, the four filter partial frame bodies 11 are matched with the size of the ventilation fan 16 and the corrugated fitting portions 1 on one side 11 </ b> A are mutually attached.
1b and the corrugated fitting portion 11b of the other side portion 11B are fitted to each other to assemble the filter frame 12 and the ventilation fan 16
So as to cover the support frame 34 and the motor section 33 of
Four filter beam members 14 according to the height of the ventilation fan 16
Expand and contract respectively.

Next, with both ends 14a of the respective filter beam members 14 fitted in the hooking projections 13b and the recesses 28, an arch shape is formed between the opposite beam attachment portions 13 of the filter beam members 14. The four filter beam members 14 are assembled in a lattice shape by being bridged over the. These filter beam members 14 are, for example, as shown in FIG.
It may be bridged between the beam attachment parts 13 arranged at any other positions. In short, it suffices that the ventilation fan 16 can be curved in an arch shape so as to cover it from the outside. Then, the filter 15 is put on the assembled filter beam member 14, and the filter 1
The outer edge portion of 5 is folded into the inside of the filter frame body 12 and hooked on each hooking protrusion 19.

Subsequently, each magnet fixture 17 is attached to the filter frame 12 from above the filter 15. That is, with the magnet 32 side facing the inside of the frame, the four magnet fixtures 17 are attached to the lower end portion of the filter frame body 12 with the hooking pieces 17a being inserted from the inlet / outlet opening 20a, and then the hooking pieces 17a. The magnet fixing tool 17 is slid to a predetermined position along each side of the filter frame body 12 while being locked to the locking projection 19. By covering the ventilation fan 16 with the filter device 10 for the ventilation fan thus assembled,
The magnetic attraction force of the magnet 32 of the magnet fixture 17 attracts and fixes the ventilation fan filter device 10 to the iron plate on which the ventilation fan 16 is attached (see FIG. 1).

In this way, the filter beam member 14 is expanded and contracted to a length that covers the ventilation fan 16 to be mounted from the outside,
While pushing and bending the filter beam member 14, it is bridged between the beam attachment portions 13 in an arch shape, and then the filter beam member 14 is covered with the filter 15.
As shown in FIG. 10A, in the case of the ventilation fan 16 having a low height, the bending ratio of the filter beam member 14 is made small, and as shown in FIG. 10B, the ventilation fan 16 having a high height is used. In addition, the filter height can be freely changed according to the form of the ventilation fan 16 by largely adjusting the bending rate of the filter beam member 14.

Further, when the filter sub-frames 11 are connected to each other, the corrugated fitting portion 11b of the one side portion 11A and the corrugated fitting portion 11b of the other side portion 11B to be connected are fitted and connected. Therefore, due to the contact during the work after the filter frame body 12 is assembled, each filter partial frame body 11 that is a component is
Can be prevented from sliding and deforming the frame shape of the filter frame body 12. Further, the elastic filter frame 12
Since the same filter part frame body 11 or filter part beam members 21A and 21B are assembled and provided for the filter beam member 14 and the filter frame member 14, one molding die may be used for each of the filter frame body 12 and the filter beam member 14. Equipment costs can be reduced.

Next, a ventilation fan filter device according to a second embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 13, the ventilation fan filter device 40 according to the second embodiment has a narrow gate-shaped filter beam member 41.
The beam mounting portions 13 of the filter frame body 12 around which the filter beam members 41 are stretched are made to be adjacent beam mounting portions 13 or distant beam mounting portions 13 to each other. 12, the height of the filter beam member 41 is changed to change the height of the ventilation fan 16 as shown in FIG.
The height of the filter can be freely changed according to the form. By doing so, as compared with the case of the ventilation fan filter device 10 of the first embodiment, the cost can be reduced and the height changing work can be simplified.

As shown in FIG. 13, both end portions 41a of the filter beam member 41 are arranged so that the filter beam member 41 can be bridged around the corners of the filter frame 12 arranged at right angles. Each one end is twisted outward by 45 degrees. Moreover, as shown in FIG. 14, the upper beam portion 41b of the filter beam member 41 and the upper beam portion 41b of the filter 15 are changed even when the height of the beam is changed according to the filter height.
In order for the contact with the surface of the filter beam member 41 to be a surface contact that does not damage the filter 15 as much as possible, about 20 degrees toward the direction in which the tip end portion 41a of the filter beam member 41 is widened by 45 degrees.
It is inclined downwards.

Next, a ventilation fan filter device according to a third embodiment of the present invention will be described with reference to FIGS.
As shown in FIGS. 15 and 16, the ventilation fan filter device 50 according to the third embodiment of the present invention has, as the filter beam member 51, an untwisted gate unlike the filter beam member 41 of the second embodiment. Although it is a mold beam member, both tip portions 51a thereof are substantially orthogonal to the beam width direction. The operation of changing the filter height is the same as in the case of the second embodiment, but since the tip end portion 51a of the filter beam member 51 is arranged orthogonally, the filter beam member 51 is attached to the beam attachment portion of the filter frame body 12. When it is bridged between 13, the both beam side portions 51b are inevitably twisted greatly, and the rigidity of the filter beam member 51 increases.

Next, a ventilation fan filter device according to a fourth embodiment of the present invention will be described with reference to FIG. FIG. 17
As shown in FIG. 5, the ventilation fan filter device 60 according to the fourth embodiment of the present invention, as the filter beam member 61, has a thin hinge portion 6 between the upper portions of the linear plate-shaped both-side beam portions 61a.
The upper beam portion 61c is laterally integrated with the upper beam portion 1b via the 1b, and a reinforcing rib 61d is integrally formed on the lower surface of the upper beam portion 61c. The height of the filter is changed in the same way as in the second and third embodiments.
Since the hinge portion 61b is slightly twisted, the surface contact state is maintained between the upper beam portion 61c and the filter 15.

Next, a ventilation fan filter device according to a fifth embodiment of the present invention will be described with reference to FIG. FIG.
As shown in FIG. 7, in the ventilation fan filter device 70 according to the fifth embodiment of the present invention, the filter partial frame 71 has a slide hole 72 formed in the central part of the frame over substantially the entire length, and one of the filter partial frame 71 is A slider 73 engaged with the slide hole 72 is integrally formed at the tip of the other side portion 71B with respect to the side portion 71A. Further, lattice-shaped filter beam members 75A and 75B are integrally bendably formed on the upper side in the vicinity of the connecting portion of the both side portions 71A and 71B via a thin hinge 74, and extend from the filter beam member 75A. , One engaging portion 76A having a hook hole 76a formed at the tip thereof
The two beam members 75A and 75B are assembled by detachably engaging the other engaging portion 76B that extends from the filter beam member 75B and has the hook 76b formed at the tip end.

Bending frames 78A and 78B for adjusting the filter height, which are bendable through thin hinges 77, are integrally formed on the upper edges of the filter beam members 75A and 75B,
A large number of pin holes 7 are provided at one upper corner of the bending frame 78B.
The latching belt 79 on which 9a is formed is integrally molded. Further, a pin 79b engaged with the pin hole 79a is integrally formed on the back surface of the upper corner portion of the bending frame 78A,
The pin hole 79a to which the pin 79b is latched is arbitrarily selected to bring the bending frames 78A and 78B into contact with each other, or the bending angle of the bending frames 78A and 78B is adjusted by the hinge 77. The height of can be changed.

Next, a ventilation fan filter device according to a sixth embodiment of the present invention will be described with reference to FIG. FIG.
As shown in FIG. 6, in the ventilation fan filter device 80 according to the sixth embodiment of the present invention, a large number of beam inclination angle changing pins 82 (here, triangular arrangement is provided on the outer surface of the corner portion of the filter frame 81. First to third beam inclination angle changing pins 82a, 82b, 8
2c) are integrally formed, and the two pin holes 84 formed at both ends of the gate-shaped filter beam member 83 are provided with the first and second beam inclination angle changing pins 82a and 82b or the first and third beams. The filter beam member 83 is erected or tilted to change the filter height by being hooked on the inclination angle changing pins 82a to 82c.

Next, a ventilation fan filter device according to a seventh embodiment of the present invention will be described with reference to FIGS.
As shown in FIGS. 20 and 21, the ventilation fan filter device 90 according to the seventh embodiment of the present invention includes a magnet fixture 91.
Has a storage portion 93 for the magnet 92 that is formed of synthetic resin and has an open lower surface.
A gate-shaped backing plate 94 is integrally erected at one end in the width direction of the. Inside the gate, a spring retainer 95 is integrally formed, which is formed into a beak-like bent toward the contact plate 94 and presses the filter frame 12 from the outside.

As shown in FIG. 20, the handle 96 integrally formed on the upper portion of the spring retainer 95 is pulled outward, and the filter frame 12 in which the filter 15 is wound between the contact plate 94 and the spring retainer 95 is attached. When the handle 96 is released after the insertion,
As shown in FIG. 7, the spring force of the spring retainer 95 presses the upper corner portion of the filter frame body 12 by the claw portion 95 a formed at the tip of the spring retainer 95, and the filter frame body 12 is magnetized by the magnet fixture 91. It is fixed to. By doing so, the magnet fixture 91 can be easily attached to the filter frame body 12,
The filter 15 wound around the filter frame body 12 can also be firmly held by the filter frame body 12.

Next, a ventilation fan filter device according to an eighth embodiment of the present invention will be described with reference to FIG. FIG. 23
As shown in FIG. 6, the ventilation fan filter device 100 according to the eighth embodiment of the present invention is provided with clip portions 102 that can be inserted into and removed from the filter frame body 12 from above from both ends of the filter beam member 101. The attachment site of the member 101 to the filter frame 12 can be continuously changed to an arbitrary position. The clip portion 102 includes a backing plate 103 and a bent spring plate 104.
By sandwiching a predetermined portion of the filter frame body 12 between 03 and 104, the filter beam member 101 can be made into the filter frame body 1.
Hang on 2.

Next, a ventilation fan filter device according to a ninth embodiment of the present invention will be described with reference to FIG. FIG.
As shown in FIG. 7, the ventilation fan filter device 110 according to the ninth embodiment of the present invention includes the filter 15 and the filter frame body 11.
As the filter hooking member 112 hooked on the first frame, the filter frame 111 is provided with a relatively wide hinge 113,
A pressing plate 114 having a dogleg-shaped hook portion 114a at its tip is integrally formed.

In use, the filter 15 is wound around the filter frame 111 from the outside, and the filter retaining member 112 is rotated in the arrow direction about the hinge 113 so that the filter 15 does not come off. , Hook part 114
It is attached by hooking a on the lower part of the filter frame 111. Thus, the filter retaining member 1
Since 12 is integrally formed with the filter frame 111, the filter retaining member 112 is not lost.

The present invention has been described above with reference to the drawings. However, the present invention is not limited to this embodiment, and even if there are design changes and the like without departing from the scope of the invention, the present invention is included. For example, in the embodiments, the ventilation fan filter device used for the commercial ventilation fan is shown, but the invention is not limited to this and can be applied to a general household ventilation fan.

Further, in the embodiment, the magnet fixing device is shown as the fixing means to the ventilation fan side of the filter device for the ventilation fan, but the invention is not limited to this, for example, by adhesive fixing such as double-sided tape or adhesive. Alternatively, a detachable fixture having male and female engaging members may be adopted. further,
Although the filter frame body is provided so as to be disassembled from the four filter partial frame bodies, the filter frame body is not limited to this, and may be composed of two or more filter partial frame bodies excluding four. Alternatively, it may be molded as one filter frame.

Furthermore, in the first embodiment, the filter beam member is provided by being assembled from two filter partial beam members. However, without being limited to this, it is possible to use three or more filter partial beam members. May be In short, the beam member of the type as in the first embodiment may be any beam member as long as it has elasticity and can adjust the filter height. Further, the flexible filter beam member as in the second embodiment and the tiltable filter beam member as in the sixth embodiment also have their respective structural features and have a high filter height. Any structure may be used as long as the height can be adjusted. Furthermore, these stretchability,
The present invention also includes a filter beam member whose filter height can be adjusted by other methods, instead of being a flexible and tiltable filter beam member.

Although the hooking projection is used as a member for attaching the filter to the filter frame, the number and position of the hooking projection are not limited to this, and for example, the hook side may be provided on the filter frame side. Surface fasteners and loop-shaped surface fasteners (unnecessary when the filter is non-woven) on the filter side so that both are attached in a hooked state, or the outer edge of the filter is made of a magnetic material by the magnetic force of the magnet. Any other filter retaining member such as being pressed against the filter frame or being retained by a hook member may be used.

Further, the number and positions of the beam attachment portions provided on the filter frame are not limited to those in the embodiment, but may be any number and positions. Further, for example, as in the eighth embodiment, by providing the filter beam member with a hooking structure such as a hook portion, the beam attachment portion can be eliminated.
Further, in the embodiment, when the filter beam member is attached to the filter frame body, the beam attaching portion is interposed so that the filter beam member may be directly attached to the filter frame body without being limited to this. It may be attached to. Moreover, although the filter beam member is detachably hooked to the filter frame body, the filter beam member is not limited to this and may be fixed to the filter frame body. The point is that the length of the filter beam member can be adjusted according to the height of the ventilation fan to change its curvature.

Furthermore, in the embodiment, the filter sub-frames are fitted and connected by the corrugated fitting portions formed on both sides thereof, but the invention is not limited to this, and the corrugated No other fitting structure may be used, or it may be straight without fitting.

[0038]

As described above, the ventilation fan filter device according to the present invention employs, as the filter beam member, a filter beam member that is hung in an arch shape between the predetermined portions of the filter frame so that the filter height can be changed. Therefore, the height of the filter can be freely changed according to the form of the ventilation fan, whereby the application range of the ventilation fan filter device can be expanded.

[Brief description of drawings]

FIG. 1 is a perspective view of a ventilation fan filter device according to an embodiment of the present invention.

FIG. 2 is an enlarged plan view of a filter partial frame.

FIG. 3 is an enlarged bottom view of a filter partial frame body.

FIG. 4 is an enlarged side view of a filter partial frame.

FIG. 5 is an enlarged view of an essential part showing a connected state of filter partial frame bodies.

FIG. 6 is an enlarged plan view of an essential part showing a connected state of filter partial frame bodies.

FIG. 7A is a plan view of the filter beam member in a contracted state. (B) It is a top view of a filter beam member of an extension state.

FIG. 8 is an enlarged perspective view of an essential part showing a connected state of the filter beam member and the filter partial frame body.

FIG. 9 is an enlarged perspective view showing a usage state of the magnet fixture.

FIG. 10 (a) is a side view showing a state where the ventilation fan is mounted on a ventilation fan having a low height. (B) It is a side view which shows the state mounted in the ventilation fan with a high height.

FIG. 11 is a perspective view showing another way of tensioning the filter beam member.

FIG. 12 is an enlarged side view of essential parts showing a filter height changing state of the ventilation fan filter device according to the second embodiment of the present invention.

FIG. 13 is an enlarged plan view of an essential part showing a state where the filter height is changed.

FIG. 14 is an enlarged cross-sectional view of a filter beam member.

FIG. 15 is an enlarged front view of a filter beam member of a ventilation fan filter device according to a third embodiment of the present invention.

FIG. 16 is an enlarged side view of the filter beam member.

FIG. 17 is an enlarged perspective view of a filter beam member of a ventilation fan filter device according to a fourth embodiment of the present invention.

FIG. 18 is an enlarged perspective view of an essential part showing a filter height changing state of the ventilation fan filter device according to the fifth embodiment of the present invention.

FIG. 19 is an enlarged side view of essential parts showing a filter height changing state of the ventilation fan filter device according to the sixth embodiment of the present invention.

FIG. 20 is an enlarged side view of a filter fixture of a ventilation fan filter device according to a seventh embodiment of the present invention.

FIG. 21 is an enlarged front view of the filter fixture.

FIG. 22 is an enlarged side view showing a usage state of the filter fixture.

FIG. 23 is an enlarged side view of an essential part showing a hooking portion of a filter beam member of a ventilation fan filter device according to an eighth embodiment of the present invention.

FIG. 24 is an enlarged side view of essential parts showing a hooking portion of a filter beam member of a ventilation fan filter device according to a ninth embodiment of the present invention.

[Explanation of symbols]

 10 Filter Device for Ventilation Fan 11 Filter Part Frame 11A One Side 11B Other Side 11a Short Side Wall 11b Waveform Fitting Part 12 Filter Frame Body 13 Beam Mounting Part 13a Through Hole 13b Locking Projection Part 14 Filter Beam Member 14a Tip Part 15 Filter 16 Ventilation fan 17 Magnet fixing tool 17a Latching piece 19 Latching protrusion 20 Latching protrusion 20a Inlet / outlet 21A Filter part beam member 21B Filter part beam member 22 Sliding frame 22a Sliding gap 23 Beam body 24 Extension protrusion 25 Backing plate 26 Central slider 27 Upper slider 27a Raised portion 28 Recessed portion 29 Connection portion 30 Slide stopper 31 Iron plate 31a Magnet storage portion 31b Beam member sliding portion 31c Backing portion 32 Magnet 33 Motor portion 34 Support frame 35 Blades 36 Opening portion 40 Ventilation fan filter device Four Filter beam member 41a Tip part 41b Upper beam part 50 Ventilation fan filter device 51 Filter beam member 51a Tip part 51b Beam side part 60 Ventilation fan filter device 61 Filter beam member 61a Side beam part 61b Hinge part 61c Upper beam part 61d Rib 70 Ventilation fan Filter device 71 Filter partial frame 71A One side 71B Other side 72 Slide hole 73 Slider 74 Hinge 75A Filter beam member 75B Filter beam member 76A One engaging part 76B Other engaging part 76a Hook hole 76b Hook 77 Hinge 78A Bend Frame 78B Bending frame 79 Latching belt 79a Pin hole 79b Pin 80 Ventilation fan filter device 81 Filter frame body 82 Beam inclination angle changing pin 82a First beam inclination angle changing pin 82b Second beam inclination angle changing pin 82c Third Beam tilt angle change pin 3 Filter Beam Member 84 Pin Hole 90 Filter Device for Ventilation Fan 91 Magnet Fixing Tool 92 Magnet 93 Storage Section 94 Patch Plate 95 Spring Presser 95a Claw 96 Handle 100 Ventilation Fan Filter Device 101 Filter Beam Member 102 Clip Part 103 Backing Plate 104 Spring Plate 110 Ventilation fan filter device 111 Filter frame 112 Filter retaining member 113 Hinge 114 Holding plate 114a Hook part

Claims (1)

[Claims] 1. A filter frame body, a filter beam member that is provided between predetermined portions of the filter frame body in an arch shape so that the filter height can be changed, and a filter that is placed on the filter beam member. A ventilation fan filter device characterized by the above.