JPH11294035A - Sealing material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sealing material capable of ensuring excellent opening/ closing property and the sealability of an opening/closing member such as a paper sliding door, a door, etc. SOLUTION: A sealing material is provided with a base part 32, feathers 31 formed on the base part 32, and a film 34 erected on the base part 32, and the film 34 is provided with a brittle part 34b. Since the flexibility is given to the film 34 by the brittle part 34b, the film 34 is easy to fall at the brittle part 34b when it is abutted on a surface to be abutted, and the repulsive force is reduced. The resistance of a part to be sealed with a sealing material 30 in the opening/closing operation is reduced thereby.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealing material to be mounted on an opening / closing portion, such as an aluminum sash or a sash door, for improving airtightness and watertightness.

[0002]

2. Description of the Related Art In recent years, various aluminum sashes and sash doors have been required to have water-tightness, air-tightness, and heat-insulating properties at open / close portions such as a window frame (frame body) and a shoji, or between a door frame and a door. . As a sealing material for sealing such a portion, a material formed of a pile fabric and a resin film is used. As shown in FIG. 10, this sealing material 100 is a pile portion of a pile fabric (a portion where pile bristles are raised) formed of an elongated strip-shaped ground structure 102 and pile hairs 104 woven into the ground structure. A thin resin film 106 is formed upright at a substantially central portion of the base material 102, and a coating layer 108 is formed on the back surface of the ground structure 102. The sealing material 100 is attached to the inside of a window frame or the like for accommodating a shoji or the inside of the window frame or the like via an adhesive layer formed on the back surface of the coating layer 108. And is fitted in the recess provided in the recess. As shown in FIG.
The pile bristles 104 are attached to both outer sides of the shoji frame 110 such that the ends of the pile bristles 104 face the inner peripheral surface of the sash frame 112, and the pile bristles 104 and the film 106 are attached to the frame 112.
The gap between the shoji and the outer frame is closed by contacting the inner peripheral surface of the sash. When the space between the shoji and the outer frame is closed by the pile hair 104 and the film 106,
Airtightness, watertightness, heat insulation and the like are exhibited.

[0003]

Further, in recent years, more airtightness and heat insulation have been required in houses and the like. Therefore, the film 106 of the sealing material is used to reduce the height of the pile bristles 104. Beyond (about 1mm to 4m
m) Projecting so that the leading end side of the film 106 comes into contact with the inner peripheral surface of the frame 112 more (see FIG. 12). As described above, when the contact area between the film 106 and the inner peripheral surface of the frame 112 increases, the repulsive force of the film 106 also increases, and the film 106 is urged more strongly to the inner peripheral surface of the frame 112 to improve airtightness and the like. I do. However, on the other hand, the frictional resistance between the film 106 and the inner peripheral surface of the frame 112 also increases, and the sliding resistance when opening and closing the shoji or the opening and closing resistance of the door significantly increases. There has been a problem that smooth opening and closing becomes difficult.

In view of the above, an object of the present invention is to provide a sealing material capable of ensuring good opening / closing properties and tightness of opening / closing members such as sashes and doors in order to solve the above-mentioned problems.

[0005]

In order to achieve the above object, the present inventors have completed the following invention. That is, the invention according to claim 1 is a sealing material including a base, a fluff formed on the base, and a film erected on the base, and the film includes a fragile portion. . According to the present invention, since the film is provided with flexibility by the fragile portion, when the film is brought into contact with the abutted surface, the film easily falls down at the fragile portion, and the repulsive force is reduced. It is getting smaller. For this reason, the resistance at the time of opening and closing the part to be hermetically sealed by the sealing material is reduced.

According to a second aspect of the present invention, there is provided the sealing material according to the first aspect, wherein the film has a projecting portion exceeding the height of the fluff. ADVANTAGE OF THE INVENTION According to this invention, while a protruding part becomes easy to fall, the repulsive force at the time of falling is small, and the frictional resistance and contact when the protruding part is brought into contact with the contacted surface are reduced. .

The invention according to claim 3 is the sealing material according to claim 1, wherein the film is provided with flexibility on any side along the thickness direction. According to the present invention, the film can easily fall on any side along the thickness direction, and therefore, the mounting site is not limited.

[0008]

Embodiments of the present invention will be described below in detail. The sealing material of the present invention is attached to an opening / closing portion of an aluminum sash or a sash door to seal the portion. Therefore, the shape of the sealing material of the present invention is not limited, but in many cases, the sealing material is formed in an elongated strip shape so as to be easily fitted along the shape of a frame such as an aluminum sash. The sealing material of the present invention seals the opening / closing portion itself or seals a gap formed in the opening / closing portion. Specifically, as the former,
Sealing between the open / close end of the door of the sash door and the door frame, sealing between the louver sash frame and the louver, the bent portion of the bent door and the seal between the open / close end and the door frame, and the like can be cited. In an aluminum sash, the sealing of the gap between the frame, the upper frame, the lower frame, and the vertical frame can be mentioned. Note that the sealing material can naturally be used in a wooden opening / closing portion such as a wooden sash or a wooden door. Since the wooden opening / closing portion has good heat insulating properties, the application of the sealing material of the present invention is effective. The sealing material may be attached to the opening / closing portion, either on the frame body side or on the opening / closing member side.

The sealing material of the present invention includes a base, fluff,
It has a film. (Base) The base is a base for forming the fluff and the film, and also a base for mounting the sealing material to a desired portion. The base portion can be used in addition to a woven fabric, a felt material, a resin sheet-like body, and the like, in particular, without limiting its form. The material of the base is preferably melted at a low temperature in consideration of mounting workability. In consideration of water resistance and weather resistance, a material having high waterproofness and durability is preferable. Specifically, it is preferable to use cotton, polyester, polypropylene, acrylic resin, nylon, and polyurethane resin as the material. Among them, polypropylene is preferable because it is easily heat-welded and has high non-water absorption.

(Fluff) The fluff is formed on the base such that the tip side of the fluff is directed upward from the surface of the base. The form of the fluff is selected as needed,
Usually, it is formed along the length direction of the band-shaped base. The fluff is basically formed of fibers. As a material of the fiber for the fluff, when the fluff is heat-welded to the base, it is preferably a material that is thermally fused and is of the same quality as the material of the base. Further, the fluff is also preferably formed of a water-resistant and weather-resistant material. If the water resistance is good,
The watertight effect is improved, and the reduction of the sealing effect is prevented. If the weather resistance is good, a reduction in the sealing effect is prevented. Examples of such a material include cotton, polyester, polypropylene, acrylic resin, nylon, and polyurethane resin, as well as ultrahigh-molecular-weight polyethylene, polyamide, aramid resin, and fluorine resin. further,
As the material of the fluff, a material having good restoring property and sliding property is preferable. If the fiber has good slidability, the resistance between the fluff and the contact surface can be reduced. In addition, if the fiber has good restoring properties, it is possible to prevent the sealing effect of the fluff from being reduced. Specifically, it is a polytetrafluororesin or a polypropylene resin.

As the material having such a base and fluff, it is preferable to select a conventionally known material such as a pile fabric, an electrostatic flocking material, or a material having a raised surface as necessary. However, in consideration of the properties of the base, the mounting strength of the fluff, the form and size of the fluff, it is preferable to use a pile fabric. In addition, velvet,
Various weaving methods such as plush, velveteen, and kohten can be selected as needed.

(Film) The sealing material of the present invention is provided with a film. The film, together with the fluff, seals the open / close portion. Although the form of the film is selected as required, it is usually formed along the fluff forming direction. It is not always necessary for the film to be present in the entire fluff forming portion, but it is preferable that the film be formed in the entire fluff forming portion as long as the opening and closing portion is sealed together with the fluff. Preferably, the film is formed inside or adjacent to the fluff. More preferably, it is formed inside the fluff, particularly at the center of the fluff. When the film is erected from the center of the fluff, the hermeticity of the fluff and the film is ensured regardless of the direction in which the film breaks.

Although the shape of the film is not particularly limited, it is preferable that the tip side is formed at the same height from the base surface. This is for obtaining a similar contact state with the contact surface of the opening / closing portion. If necessary, the tip side may be wavy, or a plurality of cuts may be made vertically from the tip side. In addition, the film may be one or two or more for the same attachment site. When two sheets are used, it is preferable to fold one film into two and use the waviness as a base for attachment to the base in terms of attachment workability and attachment strength. In this case, strong welding and fixing can be performed while locating the wedge-shaped portion at the mounting portion of the base portion and pressing the front end of the heated welding device inside the wedge-shaped portion while easily determining the position. Further, the film can be attached to a plurality of portions. The fluff may be provided simultaneously on the center portion and on both sides of the fluff. Note that there is no particular limitation on the mounting method when the film is erected on the base.
A preferable method is appropriately selected depending on the combination of the base and the fluff. For example, in addition to welding, there are methods such as bonding and sewing.

The size of the film is not limited as long as the film can be hermetically sealed together with the fluff, but preferably has a height that protrudes from the fluff. This is because higher hermeticity can be obtained. The protrusion of the film is preferably 1 mm or more and 6 mm or less. More preferably, 2 mm or more and 3 m
m or less. Further, the height from the base surface of the film is preferably 2.5 to 19.5 mm. When the height of the film is lower than 2.5 mm, it is difficult to exhibit the sealing property of the film, and the height is 19.5 m.
If it is higher than m, the resistance at the time of sliding or opening and closing becomes too large to hinder these, and at the same time, the sliding noise and the opening and closing noise become too large.

The thickness of the film is preferably from 10 μm to 300 μm in order to maintain good slidability and openability. When the thickness is less than 10 μm, the film becomes excessively easy to bend along the sliding direction or the opening and closing direction when sliding or opening and closing, and easily bends along the length direction, thereby obtaining a desired sealing property. Is no longer obtained. If the thickness is more than 300 μm, the resistance between the sealing material and the contact surface becomes too large,
Sliding and opening / closing are significantly impaired.

The material of the film is not particularly limited, but is preferably made of synthetic resin. Further, those having weather resistance are more preferable. As a method of imparting weather resistance to the synthetic resin, there are a method of kneading a weather agent in a process of forming a film, a method of coating a film with a working fluid containing the weather agent, and the like. The former is preferably used from the viewpoint of durability of weather resistance. Examples of the weathering agent in this case include a hindered amine-based light stabilizer and a benzotriazole-based ultraviolet absorber. In order to improve the weather resistance, a dark-colored film such as brown or black, which easily absorbs ultraviolet light, may be used. Further, by imparting a desired color to the film, a sealing material that matches the color tone of the opening / closing member can be provided, and the appearance of the opening / closing portion is improved.

In order to maintain good sliding noise and impact noise at the opening / closing part, the film is measured according to ASTM D2.
Soft synthetic resins such as polypropylene, polyethylene, polyamide resin and polyester resin having a hardness of 240 or more at 240 or more are preferable. If the hardness is less than 30, the film is easily broken when sliding or colliding, and the required durability may not be achieved. On the other hand, when the hardness exceeds 50, the resistance between the sealing material and the contact surface is excessively increased, so that the sliding sound and the impact sound at the time of opening and closing become large.

When the film is attached to the base by welding, the material of the film and the material of the base are preferably the same. This is because these members can be firmly joined. Further, when a coating layer is formed on the back surface of the base, the coating layer is preferably made of the same material. This is because these members can be more firmly joined.

(Coating Layer) In the sealing material provided with the base, the fluff and the film described above, a coating layer may be provided on the back surface of the base. The coating layer can enhance the fixing of the fluff and the fixing of the film. In particular, when the base of the fluff or the mounting base of the film is welded by the coating layer, it is preferable that the material of the coating layer be the same as or similar to the material of the fluff or the film and the base. Further, an adhesive layer made of an adhesive may be formed on the back surface of the coating layer. This is because the seal member can be prevented from moving when the opening and closing member is opened and closed. It is preferable that the adhesive layer is formed of an adhesive having an adhesive property such that the sealing material does not move when the opening / closing member slides or opens and closes. Examples of such adhesives include pressure-sensitive adhesives such as rubber-based and acrylic-based adhesives, and hot-melt adhesives. As the pressure-sensitive adhesive, those having no core material or those having a core material having elongation are preferably used.

(Fragile part) The film of the sealing material of the present invention has a fragile part. The fragile portion is provided to impart flexibility to the film. Specifically, the film is provided so as to easily fall down when the film comes into contact with the contacted surface at the opening / closing portion. The fragile portion is preferably formed over the entire film to impart flexibility to the entire film, but may be partially formed. Usually, the fragile portion is formed so as to easily fall on either side in the thickness direction of the film, or is formed so as to easily fall in any direction in the thickness direction of the film. In the case where the film is easily formed to fall on any one side in the thickness direction of the film, a weak portion is formed only on one side of the film, or a weaker portion is formed on one side. When the film is formed to easily fall in any direction in the thickness direction of the film, a weak portion is formed on both sides of the film, or a weak portion which is uniformly weak on both sides. When two films are used in a pair, by providing a fragile portion that easily falls down in the outer direction of each film, it is possible to easily fall down in any direction. If the film is formed so as to easily fall in any direction of the thickness direction, the mounting portion can be selected, and the number of parts can be reduced.

The formation site of the weak portion is selected according to the position in the height direction of the film, the size of the formation region of the weak portion, the degree of weakening, and the weakening method. The vulnerable part is
There is no particular limitation on the shape, shape, forming process, and the like, as long as the portion is more likely to concentrate stress than other film portions. It can be formed by various treatment methods such as molding treatment, chemical treatment, or physical treatment. As an example of chemical treatment, when a film is formed from a crystalline resin as a material, a method is used in which a portion to be made to be a fragile portion is heated in advance and then rapidly cooled to reduce the crystallization, or the thickness of the portion is heated and heated. And the like. As a process on molding, a method for forming a film in advance into a shape that is easily stressed, such as forming a concave portion or forming a thin portion as shown in FIG. Can be mentioned. As an example of the physical treatment, a method of forming a valley-like or concave-like scratch on a portion of the film that is to be made a weak portion can be given.

The method for producing the sealing material of the present invention is not limited. For example, pile hair is woven into a band-like ground structure of a pile fabric serving as a base so as to form fluff of a predetermined form into a pile fabric. If necessary, a coating layer is formed on the back surface. Further, the fragile portion is formed in advance, the tip of the heat welding device is applied to the wedge portion of the folded film, and the film is pressed near the central portion of the fluff of the pile fabric, and the film is placed at the base and Thermal welding to the coating layer. In order to attach the sealing material to the opening / closing member such as the frame side or the shoji, a mounting concave portion was formed in advance, and the base was fitted into this concave portion, or formed on the back surface side of the coating layer. It can be mounted by bonding to the mounting site with an adhesive layer, or by fitting and bonding to the mounting recess through an adhesive layer.

Next, the operation of the sealing material of the present invention will be described. According to the sealing material of the present invention, since the film is provided with flexibility by the fragile portion, stress is concentrated on the fragile portion when the film is brought into contact with the abutted surface, and in this portion, It becomes easy to fall down. That is, as shown in FIG. 8, according to the sealing material 30, since the fragile portion 34b is formed, sliding resistance along the length direction of the film 34, impact resistance along the thickness direction of the film 34, Film 34
The impact resistance along the height direction is reduced. For this reason,
The repulsive force against the contact surface is reduced, and the sliding resistance and the opening / closing resistance of the opening / closing portion are reduced while maintaining the close contact with the opening / closing portion. As the sliding resistance and the opening / closing resistance decrease, the sliding noise and the opening / closing noise also decrease.

Furthermore, the provision of the fragile portion makes it easier to follow the shape of the contact surface, and improves the sealing at the open / close portion. In particular, when this sealing material is attached to either the frame side such as an aluminum sash or the shoji side, the film is easily bent by providing the fragile part, such as when attaching a shoji to the frame body, so the work is required. It is easy to mount the film in a state where the film is tilted in a certain direction without the film being shifted left and right at the time of work.

In addition, when this sealing material is attached to the open / close end or the bent portion of the folding door, or when this sealing material is attached to a frame opposed to the opening / closing end, the resistance at the time of opening / closing decreases. Also, the sound generated when opening and closing is reduced. In addition, when this sealing material is attached to the door side such as a sash door or the frame side, resistance at the time of opening and closing is reduced. In particular, since the resistance at the time of closing is reduced, the door can be naturally closed with a weak door checker while ensuring the airtightness at the time of closing.

Hereinafter, embodiments of the present invention will be described in detail. As shown in FIG. 4 to FIG. 6, the shoji 12 is formed by an expansion frame 14 formed on an inner peripheral surface of an aluminum frame 13.
The glass plate 15 is expanded. Upper frame 1
A guide groove 16 that opens upward or downward is formed by a pair of projecting pieces 17 on the outer surfaces of the lower frame 3a and the lower frame 13b. In addition, a guide groove 16 that opens laterally is formed by a pair of projecting pieces 17 on the outer surface of the vertical frame 13c.

On the side of each frame 13, there is formed a concave strip 19 which is opened in the thickness direction of the sash 11 and whose opening is regulated to a predetermined width by a pair of projecting pieces 18. That is, the recesses 19 of the upper frame 13a and the lower frame 13b are
Are formed on the outer walls of the pair of projecting pieces 17 so as to extend in the length direction of the sash 11. The recess 19 of the vertical frame 13c is formed on the outer wall of the pair of projecting pieces 17 so as to extend in the height direction of the sash 11.

The window frame 20 as a frame is formed of aluminum in a concave shape so as to accommodate the shoji 12, and is formed on the inner surfaces of the upper frame 20a and the lower frame 20b.
Rails 21 that enter the guide grooves 16 of the upper frame 13a and the lower frame 13b, respectively. In addition, the vertical frame 20c
Has a ridge 21a that enters the guide groove 16 on the side of the vertical frame 13c.

A not-shown moving roller is attached to the inner bottom of the guide groove 16 of the upper frame 13a and the lower frame 13b of the shoji 12, so that it can roll on the rail 21. And the shoji 12 can be opened and closed smoothly.

In the upper frame 20a and the lower frame 20b of the window frame 20, a gap 22 is formed between the frame 13 of the shoji 12 and the window frame 20. When the shoji 12 is closed, a gap 22 is formed between the frame 13 and the window frame 20 of the shoji 12 on the side of the aluminum sash 11.

The reseal material 30 containing the film 34 provided on the upper and lower portions is provided such that the tip of the fluff 31 and the tip side of the film 34 come into contact with the inner surface of the window frame 20. That is, as shown in FIGS. 4 and 5,
Seal material 30 provided on upper frame 13a and lower frame 13b
Is extended between the sash 12 and the window frame 20 into a concave line 19 provided on the outer surface of the projecting piece 17.

The resealing material 30 with the film 34 provided on the side of the shoji 12 is provided such that the tip of the fluff 31 contacts the inner surface of the window frame 20. That is, as shown in FIGS. 4 and 6, the resealant 30 containing the film 34 provided on the side of the shoji 12 expands into the recess 19 of the vertical frame 13 c between the shoji 12 and the window frame 20. Have been combined. When the sliding door 12 is closed, the ridge 21a of the vertical frame 20c enters the guide groove 16 of the vertical frame 13c, and the fluff 31 of the sealing material 30 passes through the opening of the concave stripe 19 and the vertical frame 20c. It comes in contact with the inner surface of the.

As shown in FIGS. 1 and 3, the reseal material 30 containing the film 34 of the first embodiment is made of a fiber having good slidability on a surface of a base 32 as a base material made of a synthetic resin fiber. It is formed of a pile fabric having fluff 31. The synthetic resin coating layer 33 includes a base 32.
And the base of the fluff 31 is joined to the base 32. In the middle part of the fluff 31, a film 34 made of a soft synthetic resin is disposed so as to extend in the length direction of the sealing material 30. The film 34 is arranged such that one film 34 has a substantially U-shaped cross section, and is formed to have a height higher than the height of the fluff 31, and has a protruding portion 34 a exceeding the height of the fluff 31. doing. The film 34 is heat-welded on the base 32 at a heat-welding portion 36. As the base 32 in the first embodiment, a base made of polypropylene fiber is used.

The fluff 31 is formed of fibers of the same size and length, and is formed so as to extend upward from the surface of the base 32. Fluff 31 of the present embodiment
For example, polypropylene fiber, which is the same material as the base fabric 32, is used.

As shown in FIGS. 2 and 3, the base 32 constituting the pile woven fabric has two warps 32a between two peaks and valleys of two wefts 32b which form a wave in the width direction of the sealing material 30.
Are formed so as to enter. At this time, the base 32
Is formed so that two wefts 32b enter between the peaks and valleys of the two warp yarns 32a in the lengthwise direction of the sealing material 30. Then, the fluff 31 is placed on the base cloth 3 such that the bundle is adjacent to each other for each row of the adjacent fluff 31.
Pile woven on two surfaces. As shown in FIG. 3, the pile weave of the present embodiment is configured such that the fuzz 31 as a pile yarn is provided on the base 32 formed as described above and the two wefts 32.
This is a method of weaving under "b" and passing under it. As shown in FIGS. 1 to 3, the fluff 31 is pile-woven on the surface of the base 32, and then the root protruding from the back surface of the base 32 is thermally welded to the base 32, so that the fluff 31 falls off from the surface of the base 32. Not to be.

Since the coating layer 33 is thermally welded to the back surface of the base 32 and the root of the fluff 31,
2 and the fluff 31 are preferably formed of the same material. The coating layer 33 of the present embodiment uses polypropylene. And this coating layer 3
3 is thermally welded to the back surface of the base 32 and the root of the fluff 31,
The base fabric 32 is prevented from coming off and the fluff 31 from falling off. Further, in the first embodiment, the coating layer 33
Is formed with an adhesive layer 35 made of an adhesive. In the present embodiment, a hot-melt adhesive is used for the adhesive layer 35.

The film 34 of this embodiment is formed of a soft black polypropylene synthetic resin (trade name: SPX, manufactured by Mitsubishi Yuka Co., thickness: 100 μm, hardness: 40). Around the base of the projecting portion 34a of the film 34, that is, near the height at which the upper end of the fluff 31 reaches, a shallow semicircular concave portion 34b is formed on the outer surface side of the pair of films 34, respectively. Is formed. The recess 34b is formed at the same time as the film 34 is formed.

Next, the operation of the seal member 30 of the present embodiment will be described. As shown in FIG. 9A, the reseal material 30 with the film 34 configured as described above is provided on the outer wall of the pair of projecting pieces 17 of the shoji 12 with the concave streak 1.
9. As shown in FIG. 9A, the sealing material 30 of the present embodiment is provided on the inner bottom surface of the groove 19 provided on the frame 13 such that the tip of the fluff 31 contacts the inner wall of the window frame 20. It is fixed by the adhesive layer 35. In this state, the pair of films 34 are bent in a substantially J-shaped cross section, and the bent portions are in contact with the inner surface of the window frame 20. Then, the gap 22 formed between the inner surface of the window frame 20 and the shoji 12 is sealed by the film 34 and the fluff 31. Since the concave portion 34b is formed in the film, the film is easily bent in the concave portion 34b.
Is in contact with the inner wall. Since the concave portion 34b is formed, the frictional resistance is reduced because the concave portion 34b is in contact with the inner wall with a small repulsive force. At the same time, the sliding noise is reduced.
Also, in the vertical frame 13c, the window frame 2 has a small repulsion force.
Since it is in contact with the inner wall of Oc, the opening / closing resistance at the time of opening / closing the sash is reduced to be appropriate. At the same time, the opening and closing sound is reduced.

As shown in FIG. 9 (b), when the sash member 12 is pushed outward due to inaccuracy of the sash member, a change in the air pressure inside or outside the room, or the like, the tip of the fluff 31 is The inner surface of the window frame 20 cannot be contacted. At this time, the sealing performance of the sealing material 30 is maintained by the end of the film 34 provided on the sealing material 30 contacting the inner surface of the window frame 20.

When the sash 12 is closed, when the ridge 21 a of the side window frame 20 enters the guide groove 16 of the frame 13 on the side of the sash 12, the tip of the fluff 31 When the projection 34a of the film 34 contacts the inner wall of the window frame 20, the gap 22 formed between the sash 12 and the window frame 20 is sealed.

Further, since the film 34 has the protruding portion 34b, even when the sash 12 is pushed outward and the tip of the fluff 31 cannot contact the inner surface of the window frame 20, The reseal effect can be maintained by the end of the film 34 being in contact with the inner surface of the window frame 20.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a film-sealed reseal material of an embodiment.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a sectional view taken along line III-III in FIG. 1;

FIG. 4 is a partially broken perspective view showing a state in which a sealing material is attached to an aluminum sash.

FIG. 5 is a sectional view showing a state in which a sealing material is attached to an upper portion of the aluminum sash.

FIG. 6 is a sectional view showing a state in which a sealing material is attached to a side portion of the aluminum sash.

FIG. 7 is a view showing forms (a) to (c) of a fragile portion of a film.

FIG. 8 is a diagram showing a force applied to a film of a sealing material when the opening and closing member is opened and closed.

9A is a cross-sectional view illustrating a state in which a projection of a fluff is in contact with a window frame, and FIG. 9B is a cross-sectional view illustrating a state in which the tip of the fluff is in contact with a window frame.

FIG. 10 is a view showing a conventional sealing material.

FIG. 11 is a view showing a state in which a conventional sealing material seals an opening / closing portion.

FIG. 12 is a view showing a state in which a conventional sealing material seals an opening / closing portion.

[Explanation of symbols]

 Reference Signs List 30 sealing material 31 fuzz 32 base 33 coating layer 34 film 34a projecting part 34b weak part 35 adhesive layer

Claims (3)

[Claims] 1. A base, and fluff formed on the base,
A film erected on a base, wherein the film has a fragile portion. 2. The sealing material according to claim 1, wherein the film has a projection that exceeds the height of the fluff. 3. The sealing material according to claim 1, wherein the film has flexibility on any side along the thickness direction.