JPH10184226A - Sealing material for closing aperture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent adhesion or deterioration of a sealing material and increase the durability thereof and reduce the cost, by coating a synthetic rubber seal material for window frames with fluororesin or a liquid that an inadhesive and abrasion-resistant agent or an ultraviolet ray-absorbing agent is added in the resin liquid. SOLUTION: A sealing raw material 91 used for a position such as a smoke- discharge window installed on a ceilling or the like and pushed down outward, where the opening/closing frequency is low or a position such as a soundproof sash or the like, where the air tightness is required, is shaped as a string with foamed synthetic rubber and applied with a fluororesin coating 32 at the contact part 31a with a sliding door 10. An inadhesive and abrasion-resistant agent such as silicone resin or graphite or an ultraviolet ray-absorbing agent is added into a thermosetting resin including fluororesin or a thermoplastic resin liquid, for preparation of this coating liquid to increase the abrasion-resistance of the sealing material 30 and prevent deterioration with elapsed time and dispense with an expensive material such as silicone rubber. In this way, a durable sealing material which does not stick to a sliding door can be costlessly obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for mounting an opening frame and an opening / closing body for opening / closing the opening, and closing the opening / closing body by contacting the other member. It is useful mainly for a sash such as a metal window frame and a metal door.

[0002]

2. Description of the Related Art In general, in a sash used in a building, a sealing material such as an airtight rubber is attached to one of an opening frame constituting an opening and an opening / closing body such as a shoji or a door which opens and closes the opening. The sealing material is brought into contact with the other member to close between them. In general, in an airtight sash, a soundproof sash, or the like, a sealing material is attached to an opening frame, and the sealing material is pressed against an opening / closing body such as a sash or a door to seal the airtight or watertight space therebetween. . As this kind of conventional sealing material, elastic synthetic rubber is used as it is, and an opening / closing body is pressed against the synthetic rubber.

[0003]

In the above-mentioned conventional sealing material, if a sliding door is left in contact with the sealing member for a long period of time, a sliding type sash in which the sliding door slides is used. However, there was a fatal problem that the shoji did not open due to sticking to the sealing material, and in the swing project / rotation type sash, the shoji did not rotate due to sticking to the sealing material and the shoji could not be opened. . In order to solve the above problem, it has been proposed to use silicone rubber as a sealing material. However, this silicone rubber is extremely expensive to use for closing a general opening. Because of this, it is actually used only in special places where it cannot be stopped, and there is a problem that it cannot be widely used as a sealing material for closing an opening.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is to be mounted on at least one of an opening frame forming an opening and an opening / closing body for opening and closing the opening, and the other member. In the sealing material for closing the opening, which is configured to close between the two by contacting with, and made of synthetic rubber, at least a portion of the synthetic rubber that contacts the other member is coated with a fluororesin,
It is characterized in that it is prevented from sticking to the other member.

Further, the present invention provides a method of coating a solution of a thermosetting resin or a thermoplastic resin containing a fluororesin with a non-adhesive antiwear agent as a modifier to improve the wear resistance. Features. Further, the present invention is characterized in that an ultraviolet absorber is added to the coating solution, and the deterioration of the synthetic rubber is prevented by the ultraviolet absorber.

[0006]

FIG. 1 shows an upside-down smoke exhaust window 1 to which the sealing material for closing an opening of the present application is applied, and FIG. 2 is a longitudinal sectional view in which a part of the upside-down smoke exhaust window 1 is omitted. Is shown. In the fall-down smoke exhaust window 1, reference numeral 2 denotes a window frame exemplified as an opening frame forming the opening 3, which is formed by combining an upper frame 4, a lower frame 5, and a plurality of vertical frames 6 made of an aluminum material. As shown in FIG. 2, the upper frame 4, the lower frame 5, and the plurality of vertical frames 6 are provided with outward seal material mounting grooves 7 at positions surrounding the opening 3, respectively. The base of a sealing material 30 (also referred to as an air-tight rubber or air-tight material) is fitted.

A support frame 8 is fixed to the lower frame 5, and a lower portion of a sash 10 exemplified as an opening / closing body is attached to the support frame 8 by a pivot 8a.
It is pivotally attached via a pivot. This shoji 10
An open side (outside) is urged by an air spring or a spring (not shown), and the sash 10 is opened as shown in FIG. 1 by the urging force. A gear box 12 of a sash opening device 11 is fixed to the upper frame 4 at a position corresponding to each sash 10. The sliding door opening device 11
For example, the movement of a cable gear (not shown) moved in the pipe 15 by the operation of the handle 14 provided on the handle box 13 is transmitted to the chain 16 via a worm gear (not shown) in the gear box 12, and
6 is moved. Chain 16
Is connected to the top of the shoji 10 and is usually closed (inside)
To close the sash 10 as shown in FIG.
When the shoji 10 is opened for the purpose of exhausting smoke and the like, the chain 16 is moved to the open side (outside) by operating the handle 14 so that the indoor side surface of the shroud is pressed against the tip of the sealing material 30. 10 is opened as shown in FIG. Various devices such as a device for automatically opening a shoji 10 based on a signal from a smoke detector are used as the shoji opening device 11.

The above-mentioned sealing material 30 is formed in a string shape having a cross section shown in FIG. 3 as an example. The sealing material 30 is made of a sealing material 31 entirely made of foamed synthetic rubber, and a coating liquid made of a thermosetting resin containing a fluororesin or a thermoplastic resin is applied to a sash-contacting portion 31a of the sealing material 31. A coating film 32 containing a fluororesin is formed by coating, and the coating film 32 prevents adhesion or sticking to the shoji 10 due to long-term contact. As an example of the coating solution, tetrafluoroethylene resin (PTF
E) containing emulsion (base agent) and curing agent in 9
A dry film lubricant mixed at a weight ratio of about 5: 5 is used. Further, a non-adhesive wear-resistant agent such as silicone resin or graphite is added to the coating liquid as a modifier, so that the wear resistance of the seal material 30 is improved and the life is extended. Further, an ultraviolet absorber is also added to the coating liquid to prevent the sealant 30 from deteriorating. In addition, although the sealing material 30 is formed in the protruding piece so that the front part is opened with respect to the base part in the figure, a simple rectangular cross-section having no protruding piece may be used, and the cross-sectional shape is limited. is not.

The fluororesin coating on the seal material 31 is performed as follows. First, seal material 3
1 is subjected to ultrasonic cleaning in an organic solvent or a water-soluble surfactant solution to perform degreasing and cleaning, and is then preheated by maintaining the temperature at a predetermined temperature higher than the atmosphere (for example, about 40 ° C.). Transfer to In the coating process, a thermosetting or thermoplastic resin solution containing a fluororesin is used, and a non-adhesive antiwear agent such as silicone resin or graphite is used as a modifier in the solution, and an ultraviolet absorber is used as a rubber deterioration inhibitor. Is prepared, and the coating liquid is applied to a necessary portion of the sealing material 31 by spray application (or dipping or brushing may be applied) to perform coating film processing. Next, the sealing material 31 is heat-treated at a heat-resistant temperature (for example, about 120 ° C.) for about 10 to 30 minutes to be cured, and thereafter, an adhesion test, a wear resistance test, and the like of the coating film 32 are performed. The thickness of the coating film of the coating film 32 is preferably about 10 μm in terms of performance,
A range of about 5 μm to about 20 μm is preferable because it can be practically used.

The falling down smoke exhaust window 1 having the above-described structure is generally installed near a ceiling, and usually the sash 10 is often kept closed for a long period of time, for example, several months or more. In this smoke exhaust window 1, the operator may be instructed to inspect the opening of the shoji every predetermined period, for example, about every one month. However, this inspection may be forgotten, and sometimes the closed state of the shoji is maintained for more than one year. It is often done. When the shoji 10 is maintained in the closed state as described above, the state in which the side surface of the shoji 10 is in contact with the sealing material 30 is maintained for a long time, and as a result, the sealing material 30 is Attempts to stick (meaning adhesion). In particular, when the shoji 10 is drawn toward the room side and is pressed against the seal member 30 in order to enhance the airtightness like a soundproof sash or the like, the seal member 30 sticks to the side surface of the shoji 10 and tries to fix it.

However, in the sealing material 30,
Shoji contact portion 31a of seal material 31 made of synthetic rubber
Is coated with the fluororesin coating film 32, even if the sealing material 30 is pressed against the shoji 10 for a long time, the fluororesin coating film 3
2, the sealing material 30 can be reliably prevented from sticking to the shoji. Therefore, even when the sash 10 is opened in a state where the sash 10 is closed and the sash 10 is pressed against the sealing material 30 for a long period of time, the chain 16 is operated by operating the handle 14 of the sash opening device 11. When the sliding door 10 is moved to the open side (outside), the sliding door 10 is easily and slightly separated from the sealing member 30 and immediately opened, and the sliding door 10 is removed from the sealing member 3.
The trouble of sticking to zero and not opening can be solved. This is particularly important when it is necessary to quickly open the shoji 10 in a fire or the like, and a highly safe window can be provided.

In the sealing material 30, since a non-adhesive anti-wear agent is added as a modifier to the coating film 32, the abrasion resistance of the sealing material can be improved, and the opening and closing of the sash can be performed frequently. In this case, the life of the sealing material can be extended. In the present application, the addition of the non-adhesive antiwear agent may be omitted. In addition, in the sealing material 30, since the coating film 32 is added with an ultraviolet absorber, even when used in a place exposed to sunlight, the ultraviolet absorber can prevent the synthetic rubber from deteriorating. Life can be extended. In the present application, the addition of the ultraviolet absorber may be omitted.
Further, since the sealing member 30 is formed by coating a sealing material 31 made of synthetic rubber with a coating film 32 of a fluororesin which can be obtained relatively inexpensively, it can be manufactured relatively inexpensively and widely used as a sealing material for closing an opening. can do.

In the drawing, the fluororesin coating film 32 is coated only on the sash-contacting portion 31a of the seal material 31, but it may be coated over the entire surface of the seal material 31. Also, the sealing material 30 is attached to the shoji.
And the sealing material 30 may be pressed against the window frame 2, or the sealing material 30 may be provided on both the window frame 2 and the shoji 10 so that the sealing materials 30 are pressed together. Further, in the figure, an example in which the sealing material 30 is applied to the smoke exhaust window 1 is shown. However, the sealing material 30 may be used for a sliding window or a sliding window, or may be used for a rotating window of a type in which a shoji is rotated. Alternatively, the same effect can be obtained by using a swing type door (a door frame forms an opening frame, and a door body forms an opening / closing body). In particular, the sliding door 10 is maintained in a closed state for a long time. When used for objects that are likely to be opened, the sliding door can be laterally moved or rotated with a light force when opening is required, which is convenient.

[0014]

As described above, according to the first aspect of the present invention, the sealing material is made of synthetic rubber, and the synthetic rubber is coated with a fluororesin. The sealing material can be easily separated from the opening frame or the shoji even if the sealing material is pressed against the opening frame or the shoji for a long period of time. Even if the shoji can be opened and closed lightly and the sealing material is prevented from sticking to the opening frame, the shoji, etc., the sealing material can be manufactured at a low cost and is generally used as a sealing material for closing the opening. It can be widely used and practical. According to the second aspect of the present invention, since a coating solution obtained by adding a non-adhesive anti-wear agent as a modifier to a solution of a thermosetting resin or a thermoplastic resin containing a fluororesin is coated, the resistance of the sealing material is improved. The abrasion can be improved, and the life of the sealing material can be extended even when used in a place where the sash is frequently opened and closed. According to the third aspect of the present invention, since an ultraviolet absorber is added to the coating liquid to prevent the synthetic rubber from deteriorating, the sealant can be deteriorated even when used in a location exposed to sunlight. Can be prevented and the life can be extended.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an inverted smoke exhaust window to which a sealing material is applied.

FIG. 2 is a longitudinal sectional view showing a part of FIG.

FIG. 3 is an enlarged cross-sectional view showing the sealing material of FIG. 2;

[Explanation of symbols]

1 smoke exhaust window, 2 window frame (opening frame), 3 opening,
10 shoji (opening / closing body), 30 seal material, 31 seal material, 31a shoji contact portion, 32 coating film

Claims (3)

[Claims] 1. An opening closure attached to at least one of an opening frame forming an opening and an opening / closing body for opening / closing the opening, and closing the opening by contacting the other member. A sealing material for closing an opening, wherein the sealing material is made of synthetic rubber, and at least a portion of the synthetic rubber that contacts the other member is coated with a fluororesin. 2. A sealing material for closing an opening according to claim 1, wherein a coating solution obtained by adding a non-adhesive antiwear agent as a modifier to a solution of a thermosetting resin or a thermoplastic resin containing a fluorine resin is coated. . 3. The sealing material for closing an opening according to claim 1, wherein an ultraviolet absorber is added to the coating liquid.