JP2012031633A - Seal structure of sash - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seal structure of a sash, having excellent seal performance without affecting smooth running of a sash.SOLUTION: A sill 4 made of a hard resin is attached to a sash 1 by fitting a fitting part 11 in a recess 14 of the sash 1. An arch shaped seal part 5 made of a soft resin is integrally molded with the sill 4 by two color extrusion molding so as to be in elastically contact with a sliding door 2 for sealing. After the extrusion molding, a surface of the seal part 5 is coated with aqueous silicone, allowing the sliding door 2 to run smoothly.

Description

  The present invention relates to a seal structure of a door such as a glass door or a shoji (hereinafter simply referred to as a shoji, which is included in the present invention includes a door such as a glass door) that is slidably mounted on a sash.

  With regard to this type of seal structure, an ultra-high molecular polyethylene film having a low friction coefficient is attached to a sash through a foamed polyurethane foam, and the polyethylene film is used as a sliding surface of a glass door (Patent Document 1). There is a known one (Patent Document 2) in which a tight material made of metal is attached and brought into contact with a shoji.

JP-A-6-185271 JP-A-10-205238

  In the conventional sealing structure described above, in order to improve the sealing performance, it is necessary to increase the sealing pressure by pressing a sealing material such as a polyethylene film or a tight material adhered to the polyurethane foam to the shoji, and the higher the sealing pressure, the higher the sealing pressure. The seal material is compressed, but the seal material has a part that contacts the shoji and a part that does not contact, and the part that does not contact is not compressed, so there is a difference in thickness in the seal material between the compressed part and the non-compressed part. Is produced. When the shoji is opened and closed in this state, the front or rear edge of the shoji will bite into the sealing material, and the smooth opening and closing of the shoji will be impaired.

  An object of the present invention is to provide a shoji seal structure having excellent sealing performance without impairing the smooth opening and closing of the shoji.

The invention according to claim 1 is a soft rubber or a lip that is attached to a sash and is elastically contacted with a shoji that slides on the sash and is attached so as to be openable and closable. It has a seal part made of soft resin,
The invention according to claim 2 is the invention according to claim 1, wherein the lower frame made of hard rubber or hard resin is provided with the seal portion and a fitting portion integrally formed with the seal portion and fitted to the sash. It is characterized by having.

  The invention according to claim 3 is characterized in that, in the invention according to claim 1 or 2, a sliding film is formed on the seal portion at least at a position in contact with the shoji for low friction.

  According to the invention of claim 1, the seal portion is soft and hollow or lip-shaped, so it has excellent flexibility, can be brought into close contact with the shoji and can be improved in sealing performance, and can be in contact with the shoji. When opening and closing the shoji with a step at a location that does not contact the shoji, even if the front or rear end of the shoji digs in, the seal part has sufficient bending allowance and is excellent in flexibility, so it is sufficiently bent and deformed. However, it does not impair the smooth opening and closing of the shoji.

  According to the second aspect of the present invention, the lower frame is attached to the sash by fitting the fitting portion to the sash, whereby the seal portion is easily attached to the sash.

  According to the invention of claim 3, the shoji can be opened and closed smoothly.

The front view of the shoji attached to the sash. Sectional drawing of the lower frame which integrally formed the seal part. Sectional drawing in the AA line of FIG. 1 which shows the seal structure of the shoji by the seal part of the lower frame shown in FIG. 2 assembled | attached to the sash. Sectional drawing of the lower frame which integrally formed the seal part of another aspect. Sectional drawing in the AA line of FIG. 1 which shows the sealing structure of the shoji by the seal part of the lower frame shown in FIG. 4 assembled | attached to the sash. Furthermore, sectional drawing of the lower frame which integrally formed the seal part of another aspect. Sectional drawing in the AA line of FIG. 1 which shows the sealing structure of the shoji by the seal part of the lower frame shown in FIG. 6 assembled | attached to the sash. Sectional drawing of the lower frame of another aspect which omitted the seal part. Sectional drawing of the lower frame of another aspect which abbreviate | omitted the seal part.

  FIG. 1 shows a sliding door-shaped shoji 2 that is slidably attached to a sash 1 and can be opened and closed. 3 is a cross-sectional view taken along the line AA of FIG. 1, and FIG. 2 is a hollow frame that is attached to the sash 1 and that forms the seal structure of the present embodiment, and is formed integrally with the lower frame 4. The lower frame 4 has an outdoor side wall 6, an indoor side wall 7 having substantially the same height as the side wall 6 and having a step shape, both side walls 6 and 7, a connecting portion 8 having a T-shaped cross section that connects the middle portions of 7, and a fitting portion 11 in which a recess 9 is formed inside the connecting portion 8 and both side walls 6, 7 on the connecting portion; The mounting portion 12 extends horizontally from the upper end of the indoor side wall to the indoor side, and is entirely formed of a hard resin such as polypropylene PP, olefin thermoplastic elastomer TPO, styrene thermoplastic elastomer TPS, vinyl chloride PVC, or the like. .

  The seal portion 5 has a hanging arch shape that connects the upper end of the indoor side wall 7 and the connecting portion 8, and is formed of a soft resin such as an olefin thermoplastic elastomer TPO, a styrene thermoplastic elastomer TPS, or vinyl chloride PVC. The lower frame 4 is integrally formed by two-color extrusion. After the extrusion molding, a sliding film is formed by applying a sliding agent having a low coefficient of friction, such as aqueous silicone, so that the shoji 2 can be smoothly opened and closed after the extrusion. The sliding film can be formed not only by coating as described above but also by pasting another member or co-extruding with a seal portion.

  The sash 1 shown in FIG. 3 is provided with a concave portion 14 that has the same form as the lower outline of the fitting portion 11 and into which the fitting portion 11 is fitted, and an outdoor side wall 15 that forms the concave portion 14 is a rail. Thus, the door 16 of the shoji 2 is engaged with the upper end so as to be able to roll. Although not shown, the side wall 15 and the outer side wall 6 of the lower frame 4 are formed with a plurality of slots penetrating both.

  When the lower frame 4 is attached to the sash 1, the fitting portion 11 is fitted into the recess 14 of the sash 1. In this fitting, positioning in the longitudinal direction of the lower frame (a direction orthogonal to the paper surface) is performed, and when the positioning and fitting are performed, the slot formed in the side wall 6 on the outdoor side of the lower frame, and the sash The slots formed on the side wall 15 of the first and second side walls 15 are aligned so that dust and water collected in the recess 9 can be discharged to the outside of the room through the slots. In the figure, 17 is a lip that is attached to the shoji 2 and elastically contacts and seals the outdoor side of the sash side wall 15.

  After the lower frame 4 is attached to the sash 1 as described above, the shoji 2 is attached. In this attached state, the edge on the indoor side at the lower end of the shoji is pressed against the seal portion 5 and comes into close contact. Thus, indoor and outdoor sealing is performed, and a watertight and airtight structure is obtained.

  The sash 1 to which the lower frame 4 is assembled is screwed to a window frame (not shown) in the mounting portion 12 with screws or bonded with an adhesive tape. This fixing is performed by attaching the shoji 2 to the sash 1. This can be done before installation or after installation.

  According to the seal structure of the present embodiment, the lower frame 4 can be easily attached simply by fitting the fitting portion 11 into the recess 14 of the sash 1. As for the seal part 5, one half of the entire length is elastically contacted with the shoji 2 as shown in FIG. 3, and the other half which is not elastically contacted with the shoji 2 maintains the form shown in FIG. When the shoji 2 slides from this state and opens and closes, the indoor surface or bottom surface (lower end surface) of the indoor side corner at the lower end of the shoji tends to bite into the seal portion 5 shown in FIG. 3 and move. Since it is hollow and excellent in flexibility and has a sufficient bending allowance, it can be easily and sufficiently deformed, and in combination with the sliding film formed on the surface of the seal portion, the shoji 2 can be opened and closed smoothly. To do.

  The lower frame 21 shown in FIG. 4 has the same structure as the lower frame 4 shown in FIG. Unlike the seal portion 5, the seal portion 22 has an inverted V-shaped cross section and is connected to the middle portion of the indoor side wall 7 of the lower frame 21 and the connecting portion 8, and the upper surface is inclined slightly upward toward the outdoor side. ing.

  FIG. 5 shows a state in which the lower frame 21 shown in FIG. 4 is assembled to the sash 1, and the seal portion 22 elastically contacts the indoor half of the indoor side lower end surface of the shoji 2 and the shoji 2. It is designed to seal between.

  The seal structure of this embodiment produces the same effect as the seal structure of the above embodiment. That is, the seal portion 22 seals in contact with the lower end surface of the shoji 2 in one half of the entire length, and maintains the form shown in FIG. 4 in the other half not in contact with the shoji 2. When the shoji 2 slides and opens and closes from this state, the edge of the shoji front end or rear end bites into the seal portion 22 and tries to move. However, the seal portion 22 is hollow and excellent in flexibility and has a sufficient bending allowance. Therefore, it can be easily and sufficiently deformed and, in combination with the sliding film formed on the surface of the seal portion, allows the shoji 2 to be smoothly opened and closed.

  The bottom frame 25 shown in FIG. 6 has a configuration in which the seal portion 26 is supported except that the seal portion 26 except the lower side portion of the seal portion 5 shown in FIG. Has the same structure as the lower frame 4 shown in FIG.

  FIG. 7 shows a state in which the lower frame 25 shown in FIG. 6 is attached to the sash 1, and the seal portion 26 is configured to be elastically contacted with the lower end surface on the indoor side of the shoji 2 and sealed.

  Since the seal portion 26 of the present embodiment has a lip shape, the seal portion 26 is more easily deformed than the seal portions 5 and 22 of the above-described embodiment. Allows for easy opening and closing.

  FIG. 8 shows another form of the lower frame. The lower frame 28 is formed only in that the outdoor side wall 6 is provided only under the connecting portion 8 and is not provided on the connecting portion. The lower frame 4 shown in FIG.

  FIG. 9 shows still another form of the lower frame. The lower frame 31 is formed by removing the outdoor side wall 6 from the lower frame 4 shown in FIG. 3 and the outdoor side of the connecting portion 8 having a T-shaped cross section. It has a form with no part. In the present embodiment, the sash to which the lower frame 31 is attached may be formed such that the recess fits the indoor side wall 7 of the lower frame 31 and the angle-shaped connecting portion 32.

In the lower frames 28 and 31 shown in FIGS. 8 and 9, the above-described seal portion 5, 22 or 26 is integrally formed in the same manner as in FIG. 2, FIG. 4 or FIG.
In the lower frames 4, 21, 25, 28, and 31 described above, the side wall 7 on the indoor side is stepped, but this corresponds to the shape of the sash to be attached, and the sash has no stepped portion. For example, the lower frame need not be stepped.

1 .. Sash 2.. Shoji 4, 21, 25, 28, 31.. Lower frame 5, 22, 26... Seal part 6, 15 .. Outdoor side wall 7.・ Connecting part 9 ・ ・ Recess 11 ・ ・ Fitting part 12 ・ ・ Mounting part 14 ・ ・ Recess 16 ・ ・ Dolly 17 ・ ・ Rip

Claims (3)

  Made of soft rubber or soft resin that is attached to the sash 1 in the form of a hollow or lip, and elastically contacts the shoji 2 that is slidably attached to the sash 1 so that it can be opened and closed. A shoji seal structure characterized by having seal parts 5, 22, and 26.   The lower frames 4, 21, 25 made of hard rubber or hard resin, which are integrally formed with the seal portions 5, 22, 26 and the fitting portions 11 that are fitted to the sash 1 and are integrally formed with the seal portions 5, 22, 26. , 28, 31. The shoji seal structure according to claim 1.   3. The shoji seal structure according to claim 1 or 2, wherein a sliding film is formed on the seal portions 5, 22, and 26 at least in contact with the shoji for low friction.