JPH0735929U - Filter holding frame - Google Patents

Abstract

(57) [Abstract] [Purpose] It is an object of the present invention to provide a filter holding frame which is extremely easy to install a filter and whose size can be changed depending on the size of a ventilation fan to be installed. [Structure] A filter holding frame 1 for attaching a sheet-like filter 9 to a front inlet of a ventilation fan 10 or the like, which is a surrounding frame plate 1a that expands and contracts, and a filter whose base end is attached to the frame plate 1a. The frame plate 1a has an L-shaped or hook-shaped filter stopper 2 which has a support 3 and which presses and holds the filter 9 mounted on the front surface by rotating from the outer side to the inner side of the frame plate 1a. A plurality is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a filter holding frame used when a filter is attached to the front of a ventilation fan or the like (including a range hood).

[0002]

[Prior art]

 Filter holding frames are made of plastic or metal, and filter holding frames of various sizes are usually prepared according to the dimensions of the ventilation fan. When attaching a sheet-shaped filter made of non-woven fabric to this filter holding frame, cover the surface of the holding frame with a sufficiently wide filter, and then attach the filter to the holding frame with a fastener such as a separately prepared clip. It was Moreover, since the conventional filter holding frame had a constant shape, a filter holding frame that fits the size of the ventilation fan was selected and used.

[0003]

[Problems to be solved by the device]

 However, when fixing the filter to the filter holding frame with a clip or the like, there is a problem that the clip may be lost because it is a separate body from the filter holding frame. Furthermore, the shape of the ventilation fan differs depending on the manufacturer, and it is necessary to prepare various sizes according to the ventilation fan. The customer must measure the size of the ventilation fan in advance and then purchase the ventilation fan cover (which means the combination of the filter holding frame and the filter, the same applies below), and if the dimensions are erroneously measured. The ventilation fan cover I purchased had the drawback that it could not be attached to the ventilation fan. Further, when the filter is attached to the filter holding frame, if the user forgets to prepare and put a separate stopper, or if the stopper is lost, there is a drawback that the filter holding frame cannot be attached. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a filter holding frame in which mounting of a filter is extremely easy and, in some cases, its size can be changed depending on the size of a ventilation fan to be mounted.

[0004]

[Means for Solving the Problems]

 The filter holding frame according to claim 1 which meets the above object, is a filter holding frame for attaching a sheet-like filter to a front suction port of a ventilation fan or the like, the surrounding frame plate and a base end of the frame plate. The frame plate has a plurality of L-shaped or hook-shaped filter stoppers which are attached to the front face of the frame plate and press and hold the filter attached to the front face by rotating the frame plate from the outside to the inside. It is configured by being provided individually. According to a second aspect of the present invention, in the filter holding frame according to the first aspect, the filter holding frame has a quadrangular shape and is divided into four parts each having a corner portion, and further, forms four sides of the quadrangle. The frame plates are connected so that they can be inserted and removed freely, so that they can be expanded and contracted. According to a third aspect of the present invention, in the filter holding frame according to the second aspect, the filter support has a substantially arcuate shape, and its base end is fixed to each of four divided frame bodies. . The filter holding frame according to claim 4 is the filter holding frame according to claim 3, wherein the base ends of the filter supports attached to the respective divided frame bodies are configured so that the mounting heights are slightly different. ing.

[0005]

[Action]

 In the filter holding frame according to any one of claims 1 to 4, when the filter is soiled and is to be replaced, the stopper connected to the rotatable (that is, hinge structure) is removed without removing the filter holding frame. The filter can be easily removed and a new filter can be attached with one touch. In addition, in the filter holding frame according to claims 2 and 3, even when purchasing the ventilation fan cover without worrying about the dimensions of the ventilation fan to be installed, the filter holding frame should be installed according to the ventilation fan. After setting the outer dimensions of the filter and mounting it, cover the filter with the filter holding frame, and then attach the filter to the filter holding frame by one-touch using the fastener connected to the outer periphery of the filter holding frame with a hinge. It is possible.

[0006]

【Example】

 Next, an embodiment of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. FIG. 1 shows a ventilation fan cover provided with a filter holding frame according to an embodiment of the present invention. The filter holding frame 1 is attached to the front of the ventilation fan 10, the filter 9 and the mounting springs 8 provided around the filter. have. Below, these will be explained in detail. The filter holding frame 1 is made of plastic such as polypropylene or polyethylene, and has a four-divided structure as shown in FIGS. 2 and 3, and the surrounding frame plate 1a is detachably connected to form a whole. It is flexible.

The filter stopper 2 is connected to a lower portion of the frame plate 1a by a hinge, has a tip bent in an L shape, and is integrally formed with the frame plate 1a. The filter support 3 is integrally formed on the upper portion of the frame plate 1a. The stopper 4 is formed at one end of the outer surface of the frame plate 1a. The retainer 5 is installed on a part of the inner surface of the frame plate 1a. The slide portion (convex) 6 is installed on the outer side surface of the frame plate 1a. The slide portion (concave) 7 is installed on the inner inner surface of the frame plate 1a.

The mounting spring 8 is made of a metal spring and a metal plate. The filter 9 is made of non-woven fabric and is made of glass fiber, flame-retardant plastic fiber or pulp, metal fiber, or the like. The ventilation fan 10 is an electric ventilation fan manufactured by an electric manufacturer that is generally commercially available.

Therefore, the filter holding frame 1 according to one embodiment of the present invention is expanded and contracted according to the external dimensions of the ventilation fan 10, and is attached to the ventilation fan 10 by the mounting spring 8. Next, the filter 9 cut according to the outer diameter of the ventilation fan 10 is put on the surface of the filter holding frame 1, and the filter 9 is fixed to the lower part of the frame plate 1a by a filter stopper 2 connected by a hinge. The exhaust fan cover is shown in FIG. Then, the replacement can be easily performed by removing the filter stopper 2.

Further, the filter holding frame 1 has a structure that can be disassembled as shown in FIGS. 2 and 3. When assembled, the function of the stopper 4 and the retaining member 5 prevents the filter holding frame from being disassembled or disassembled when the ventilation fan 10 is adjusted to a large size. The filter holding frame 1 moves smoothly according to the size and shape of the ventilation fan 10 when it is enlarged or reduced, and the slide portion (convex) 6 and slide portion (concave) 7 are arranged so as not to come off or disassemble. Are installed outside and inside the frame plate 1a.

FIG. 4 is a diagram when the outer dimensions of the filter holding frame 1 are set according to the size and shape of the relatively large ventilation fan 10 and mounted. FIG. 5 is a diagram when the external dimensions of the filter holding frame 1 are set according to the size and shape of the small ventilation fan 10 and the filter holding frame 1 is mounted. In this case, since both base ends of the filter support 3 are attached with their heights changed by the thickness thereof, the arc-shaped filter support 3 smoothly crosses. In this way, dirty oil or smoke in the ventilation fan cover chamber attached to the ventilation fan 10 can be attached to save the trouble of cleaning the ventilation fan.

Although the filter holding frame is of the expandable type in the above-described embodiment, the filter stopper may be attached to a fixed type. Further, although the shape of the filter support is an arc shape, it is not limited to this and may be any shape such as S, C, M type.

[0013]

[Effect of device]

 As is apparent from the above description, the filter holding frame according to claims 1 to 4 is provided with an L-shaped or hook-shaped filter stopper on the frame plate, which makes it extremely easy to attach and remove the filter. became. Therefore, in some cases, the filter can be removed by simply removing the filter stopper provided on the filter holding frame while the filter holding frame is still attached to the ventilation fan, and a new filter can be easily replaced on the surface of the filter holding frame. it can. At the time of this filter replacement work, the filter stopper is connected to the frame plate by a hinge, so it will not fall off or come off, so it will not be lost and it will be very convenient. Therefore, the running cost is very low, and the cost of only the filter to be replaced is a great economic advantage. In particular, since the filter holding frame according to claims 2 to 4 expands and contracts according to the size of the ventilation fan, it is not necessary to measure the size of the ventilation fan in advance and purchase a ventilation fan cover. It is not necessary for the side to prepare various types of filter holding frames. What's great about the present invention is that the filter can be removed by simply removing the filter stopper attached to the outside of the filter holding frame with a hinge while the filter holding frame is attached to the ventilation fan, and a new filter can be attached to the surface of the filter holding frame. It is very easy to replace.

[Brief description of drawings]

FIG. 1 is a perspective view of a ventilation fan cover using a filter holding frame according to an embodiment of the present invention.

FIG. 2 is a diagram showing a structure of a filter holding frame as viewed from the inside.

FIG. 3 is a diagram showing a structure of a filter holding frame as viewed from the outside.

FIG. 4 is a diagram showing a structure when a filter holding frame is extended to a maximum frame size.

FIG. 5 is a diagram showing a structure when the filter holding frame is contracted to a minimum frame size.

[Explanation of symbols]

 1 Filter retaining frame 1a Frame plate 2 Filter stopper 3 Filter support 4 Stopper 5 Stopper 6 Slide part (convex) 7 Slide part (concave) 8 Mounting spring 9 Filter 10 Ventilation fan

Claims (4)

[Scope of utility model registration request] 1. A filter holding frame for attaching a sheet-like filter to a front suction port of a ventilation fan or the like, which has a peripheral frame plate and a filter support having a base end attached to the frame plate. Moreover, the frame plate is provided with a plurality of L-shaped or hook-shaped filter stoppers that rotate from the outside of the frame plate to the inside and press and hold the filter mounted on the front surface. Filter holding frame to be used. 2. The filter holding frame has a rectangular shape,
The filter holding frame according to claim 1, wherein the filter holding frame is divided into four parts each having a corner portion, and further, frame plates forming four sides of a quadrangle are detachably connected so as to be expandable and contractable. 3. The filter support has a substantially arc shape,
The filter holding frame according to claim 2, wherein the base ends thereof are fixed to four divided frame members. 4. The filter holding frame according to claim 3, wherein the base ends of the filter supports attached to the respective divided frame bodies have slightly different attachment heights.