JPH0732684Y2 - Airtight gasket for curtain wall - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a gasket which is interposed between panels of a curtain wall to be fitted and which maintains airtightness and prevents rainwater from entering.

(Prior Art) A seal is filled between panels to prevent rainwater from invading from the joint of the curtain wall due to a pressure difference, and the adhesiveness of the seal maintains the honey property.

Recently, the curtain wall has also been improved so as to minimize the filling work of the sealing material placed in the field, and in consideration of the damage of the sealing material caused by the interlayer displacement,
For example, Japanese Utility Model Laid-Open No. 55-41405 discloses a mounting structure of a packing made of an elastic material that is fixedly attached to a panel via a pressing plate, the packing extending in a long shape over the upper surface of the panel, In addition, the cross-sectional shape perpendicular to the longitudinal direction is formed by eyeglass-shaped tight portions spaced apart by upward channel portions, and the bottom surface of the packing is a flat surface that adheres to the panel, and the pressing plate is almost the same as the packing. It is made of a long rigid material of the same length, and its cross-sectional shape is shaped to fit inscribed in the recess of the channel part, and the push plate fitted in the recess of the channel part of the packing is replaced with several screws. Discloses a mounting structure for an airtight or water honey packing fixedly attached to a panel, and JP-B-63-29060 discloses a waist panel water honey structure, which includes a vertical frame of the waist panel and an extension flange. Between the outdoor surface The elastic molded sealing material having the tongue-shaped portion fitted to the C-shaped channel of the vertical frame is provided to seal the gap between the both over almost the entire height of the waist panel. There is disclosed a water honey structure in which a rain partitioning portion formed on the outer surface side of a portion to be fitted and an airtight portion formed by sealing with a gasket on the inner surface side are provided and the principle of equal pressure is applied.

(Problems to be solved by the invention) Among the conventional ones described in Japanese Utility Model Laid-Open No. 55-41405, when the panels are butted, the upper surface of the eyeglass-shaped tight portion screwed to the end of the panel is pressed. Since it is designed to be sealed, it cannot be applied to a panel type curtain wall that is fitted and assembled.
In the elastic molded sealing material having a tongue portion shown in Japanese Patent No. 9060, the molded sealing material is inserted into the C-shaped channel, but in addition to the sealing between the tongue-shaped portion and the outer surface of the flange, the C-shaped channel of the vertical frame is used. It is necessary to hermetically seal the joint surface, and in order to improve the adhesion and maintain the airtightness, a molded seal material that has almost the same opening size as the C-shaped channel is inserted. There is a problem that requires
If the lip is removed instead of the shaped channel to form a concave groove, insertion of the molded sealing material becomes relatively easy, but there is a problem that it may come off during assembly of the panel.

(Means for Solving Problems) The present invention has been made in view of the above-mentioned problems of the related art.
For the purpose of providing a gasket that maintains reliable airtightness even in a fitting panel structure that can be easily mounted, a C-shaped channel-shaped groove portion having a lip is formed on the side surface of the fitting plate that is erected on the peripheral end surface of the frame body. An airtight gasket for a curtain wall, in which a gasket made of an elastic material is provided in the groove portion, and the end portion of the gasket protruding from between the lips is brought into contact with the side of a fitting plate of another adjacent frame body to maintain airtightness. A V-shaped projecting strip that is narrower than the inner height and inner width of the groove and protrudes diagonally upward and to the left and right; and a lip of the groove that stands upright in the center of the projecting strip and is thicker than the projecting strip. An airtight gasket for a curtain wall comprising a leg portion narrower than a space and a taper-shaped bent portion extending on the leg portion, and in the above-described curtain wall airtight gasket, an inner height and an inner width of the groove portion. Yo V which projects obliquely above the left and right narrow
-Shaped projecting strip, a leg portion standing upright in the center of the projecting strip, thicker than the projecting strip, and narrower than the gap between the lips of the groove, and a crescent-shaped cross-section on the leg portion. Provided is an airtight gasket for a curtain wall, which has a narrow upper end and a thicker end and has a flat surface for adhering to the side surface of the fitting plate on the end.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a gasket according to the present invention, FIG. 2 is a perspective view showing a groove portion of a frame body which is partially cut away, and FIG. 3 is a sectional view showing a mounting state of the gasket according to the present invention in the groove portion. , Fig. 4 is a schematic front view of a curtain wall with a part cut away, Fig. 5 is a sectional view taken along line AA of Fig. 4, and Fig. 6 is B of Fig. 4.
-B is a sectional view, FIG. 7 is a sectional view showing a state in which a gasket of the present invention having another structure is attached to a groove portion, and FIG. 8 is a perspective view showing a partially cut-away panel.

The left and right cuboid members 1 and the upper and lower horizontal frame members 2, or the frame 4 assembled in a rectangular shape by inserting the seamless 3 between the horizontal frame members, the exterior plate, for example, the glass plate 6 on the indoor side. The panel 8 having the structural sealing material 7 adhered thereto comprises a plurality of fitting plates 9 arranged side by side on the peripheral end face with the pasting plate 5, and some of the fitting plates 9 have C-shaped channels along the side surface. Groove 10
The gasket 11 is attached to the groove, and the side face of the fitting plate 9 of the adjacent panel 8 is pressed against the airtight portion 13, and the trough 12 is fitted by the fitting plate 9 without the gasket 11. Curtain wall 14

The groove portion 10 provided on the side surface of the fitting plate 9 has a C-shaped channel shape with rounded left and right lip 15 ends, and a part of the gasket 11 , that is, a leg portion 17 and a protruding strip 16 which will be described later, is formed in the opening cross-section portion. Insert.

The gasket 11 mounted in the groove portion 10 includes a leg portion 17 between the rib 16 and the protruding piece 16 to be inserted into the opening portion of the groove portion, and a tapered bend having a rounded tip portion extending from the center of the leg portion. Part 18
It is formed as an anchor consisting of
Is narrower than the inner width of the groove and the gap between the inner surface of the lip 15 and the bottom surface of the groove, and its shape is a V-shape projecting obliquely upward to the left and right, and as shown in FIG. The angle θ between the line and the bottom surface of the protruding strip 16 is 5 ° to 15 °.

The leg portion 17 provided upright in the center of the protruding strip 16 is narrower than the space between the lips 15 and thicker than the thickness of the protruding strip, and has a taper-like bend on the leg portion where the thickness becomes thinner toward the tip end side. The part 18 is extended. The gasket 11 uses a rubber material, and its HS hardness is 40 °.
It is ~ 65 °, but if good adhesion is desired, the range of 45 ° -55 ° is preferable. Also, in order to make the V-shaped tip of the protruding strip 16 slide well at the time of insertion, it is the same as the tip of the bent portion 18. Rounding is preferable.

Next, as a gasket 11 'showing another embodiment, a crescent-shaped bent portion 18' is provided in place of the tapered bent portion 18 provided on the leg 17, and the upper end side of the crescent-shaped portion is narrowed. Moreover, a flat surface 19 for adhering to the fitting plate on the leg 17 side is provided as a thick wall on the end side, and the leg 17 and the protruding strip are provided.
The dimensions of 16 and the material including the bent portion 18 'conform to those of the gasket 11 described above, and the surface of the ridge 16 facing the inner surface of the lip 15 rises at a right angle to the leg 17 or slightly in the protruding direction.
The slope may be about 10 °.

The operation of the present invention will be described below.

The panel 8 on which the framed glass plate 6 has been adhered and cured is carried into the field, and gaskets 11 and 11 'are inserted into the groove 10 provided in the fitting plate 9 in preparation for construction, but the mounting work is performed by opening the groove. Compared to the size, both the gasket ridges 16 and legs 17 are narrow, and the V-shape of the ridges 16 makes the contact area with the inner wall of the groove 10 small, resulting in less frictional resistance and smooth insertion. be able to. In the construction, the tapered bent portion 1 is formed by inserting the adjacent panel 8 into the fitting plate 9.
Although a shearing force is applied to 8, the bent portion whose tip side is thinned by an elastic body is pushed down and is brought into contact with the side surface of the fitting plate 9 of the adjacent panel to be in a close contact state. On the other hand, in the groove portion 10, since the width of the leg portion 17 is thicker than the thickness of the protruding strip 16, the bending deformation of the bent portion 18 due to the load is stopped at the upper portion of the leg portion 17, and the lower portion of the leg portion has a roundness. Lip 15 end and leg
One side of 17 contacts as a fulcrum, acts in the reaction force direction with respect to the bending direction of the bent portion 18, and press-contacts the bottom surface of the protruding strip 16 and the bottom surface of the groove portion 10 by a synergistic effect with the pressing of the bent portion, Further, contact pressure or the like is generated between the inner surface of the lip 15 on one side and the projecting end portion of the protruding piece 16 on one side.
In 10 as well, a pressure-contacted sealing portion is provided, and a sealing action and effect for the same purpose are generated in each of the fitting plate 9 and the groove portion 10 depending on the shape of the gasket 11 , and ventilation is performed via the groove portion. It also prevents.

In the case of the gasket 11 'having the crescent-shaped bent portion 18', the tip of the bent portion is brought into contact with the fitting portion 9 to seal it, but by bending and pressing the bent portion 18 ', the flat portion positioned on the leg 17 side is located. A contact pressure is generated between the surface 19 and the protruding strip 16 in the groove portion 10 to perform a close seal.

For example, a fitting plate 9 located on the right side of the panel 1 on the side of the panel 8
And the fitting plate 9 on the left side of the panel 8 which is adjacent to the fitting plate 9 are fitted with the gutter portion 12 and the airtight portion 13 shown in FIG. 5, and are also adjacent to the fitting plate 9 provided on the surface of the upper horizontal frame member 2 of the panel 8. Other panels to do 8
The trough portion 12 and the airtight portion 13 shown in FIG. 6 are formed by fitting the fitting plates 9 standing on the horizontal frame member 2 provided at the lower part of the frame, and the formation structure and the gaskets 11 and 11 used for the airtight portion. Due to the airtightness of ′, a honey structure is formed based on the isobaric principle.

The gaskets 11 and 11 ′ of the present invention seal at a plurality of closely contacting points depending on the shape and the direction of the load to keep airtightness securely.
The pressing method may be such that the tip of 18 'is bent.

The gasket shown in FIG. 1 or the gasket shown in FIG. 7 can be used alone or as an appropriate combination as a curtain wall gasket.

(Effects of the Invention) The present invention makes it easy to install in the groove by considering the shape and fitting dimensions of the gasket, and seals with the groove at multiple points by the load acting on the gasket. , Its practical effect is remarkable.

[Brief description of drawings]

FIG. 1 is a perspective view of a gasket according to the present invention, FIG. 2 is a perspective view showing a groove portion of a frame body which is partially cut away, and FIG. 3 is a sectional view showing a mounting state of the gasket according to the present invention in the groove portion. , Fig. 4 is a schematic front view of a curtain wall with a part cut away, Fig. 5 is a sectional view taken along line AA of Fig. 4, and Fig. 6 is B of Fig. 4.
-B is a sectional view, FIG. 7 is a sectional view showing a state in which a gasket of the present invention having another structure is attached to a groove portion, and FIG. 8 is a perspective view showing a partially cut-away panel. 4 …… Frame, 8 …… Panel, 9 …… Mating plate 10 …… Groove, 11 , 11 ′ …… Gasket 14 …… Curtain wall, 15 …… Lip 16 …… Strip, 17 …… Leg 18, 18 '... Bent

Claims (2)

[Scope of utility model registration request] 1. A gasket having a lip and having a C-shaped channel having a lip formed on a side surface of a fitting plate which is erected on a peripheral end surface of the frame, and a gasket made of an elastic body is attached to the groove so as to protrude from between the lips. In an airtight gasket of a curtain wall, the end portion of which is brought into contact with the side surface of a fitting plate of another adjacent frame to maintain airtightness. Of the ridge, a leg portion standing upright in the center of the ridge portion, thicker than the ridge portion and narrower than the gap between the lips of the groove, and a tapered bent portion extending on the leg portion. An airtight gasket for curtain walls, which consists of 2. A gasket having a lip and having a C-shaped channel shape is provided on a side surface of a fitting plate which is erected on a peripheral end surface of a frame body, and a gasket made of an elastic body is mounted in the groove portion to project from between the lips. In an airtight gasket of a curtain wall, the end portion of which is brought into contact with the side surface of a fitting plate of another adjacent frame to maintain airtightness. And a leg portion which is erected in the center of the protrusion portion and is thicker than the protrusion portion and narrower than the gap between the lips of the groove portion, and has a crescent-shaped cross-section on the leg portion and above it. An airtight gasket for a curtain wall, characterized in that the front end side is narrow and the end side is thick, and the bent side is provided with a flat surface for adhering to the side surface of the fitting plate.