JP2811625B2 - Integrally molded gasket - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an integrally molded gasket used for a top light or the like for fixing a lighting plate to a support frame.

[0002]

2. Description of the Related Art In a gymnasium, an atrium, or the like, a part of a roof is largely opened, and a large number of glass or synthetic resin daylighting plates are incorporated into the opening to form a so-called top light. . The plurality of lighting plates are connected and supported with the end faces abutting each other via a connecting member supported by a strength member of the structure, and as the connecting member,
A gasket made of a rubber material is used. That is, a large number of unit support frames corresponding to the size of the daylighting plate are provided on the strength member of the structure in a planar shape on a flat inclined roof surface, in a mounting cylindrical shape (camel-like shape), an arch shape, or a dome. In the case of a vaulted roof, it is attached so as to be connected in a polygonal shape, and a lighting plate is fitted and supported in the area surrounded by each unit support frame. The lower part is sandwiched by a sealing material (gasket) and is continuously provided by being pressed by a ridge spanned between adjacent light-receiving plates.

[0003] When the lower seal is a separate member, the number of work steps increases, and the lower seal is integrated into a U-shape through a connecting portion, which is introduced in Japanese Utility Model Publication No. 57-44814. I have. That is, as shown in FIG. 4, a pair of ridges 3, 3 and a fastening ridge 4 are formed on the upper surfaces of the longitudinal and latitudinal frames 1, 2 in the unit support frames orthogonal to each other. .

On the other hand, in the U-shaped integrally molded gasket 5, a holding groove 7 is formed substantially in the center of one side of a quadrangular prism-shaped pressed portion 6 along the longitudinal direction. A fitting ridge 8 is formed on the lower surface of. A fitting ridge 8 of a gasket 5 is fitted and fixed between the pair of ridges 3 and 3, and a lighting plate 9 is inserted into a holding groove 7 of the gasket 5 and a packing 11 is screwed to a packing 11. The daylighting plate 9 is firmly clamped by the action of the pressing edge 12 which is fastened and fixed to the fastening ridge 4 via the fastening ridge 4.

The caulking material 13 for preventing rainwater or the like from entering between the ridge 12 and the daylighting plate 9 is filled in the field with the press-contacted portion 6 as a backup, because it is exposed to a severe environment. Is done.

[0006]

The above-mentioned caulking material 1
Numeral 3 is for compensating for the aging failure of the gasket 5 manufactured in conformity with the lower half layer of the pressed portion 6 requiring the highest hardness. Is set to For this reason, a large puddle 14 that cannot be avoided due to the orientation that traverses the roof slope is formed for the frame 2 in the latitude direction (it does not occur in the longitude direction because rainwater flows down). Under the circumstances that the construction is an on-site work and the amount of accumulated water is large, the sealing work may be overwhelmed in the process depending on the weather conditions. Due to variations in the management at the time of construction (water wetness, temperature, humidity) and the skill of the constructor, it is difficult to secure the specified performance, unstable work, difficult to perform reliable construction, etc. Can cause dirt and water leakage without prompt drainage.
It is about a year, and has a problem that it is shorter than sash frame and glass.

The gasket 5 is installed on site,
That is, in the gasket 5, the fitting ridge 8 is fitted and fixed between the ridges 3 and 3, and thereafter, the lighting plate 9 which is very easily damaged at the end is hung and clamped in the clamping groove 7. For,
The construction is inefficient. The present invention has been made in view of such problems of the related art, and has as its object to eliminate the need for on-site sealing, and to ensure the water stopping performance, and drastically reduce the amount of accumulated water. Get
An object of the present invention is to provide an integrally molded gasket used for a top light or the like that can eliminate a breakage accident at the time of hanging a lighting plate.

[0008]

In order to achieve the above object, a gasket according to the present invention is an integrally molded gasket having a U-shaped vertical section provided with a holding groove for holding a lighting plate in the middle of a portion to be pressed. The lower half of the light receiving plate on which the pressure-receiving portion is placed is a hard material layer, and the upper half which is responsible for the external seal is partitioned into a soft material layer.

[0009]

Since the upper half of the pressure-receiving portion of the gasket of the present invention, which is in charge of the outer seal, is made soft, the inadequate sealing with time is eliminated, and the on-site filling of the caulking material for supplementing the seal is unnecessary. Based on this, it is not necessary to design a bulky part for caulking, the bulk of the gap can be reduced, and the water pool is greatly reduced.

Further, in the present invention, since the light-collecting plate is clamped, it can be assembled in a factory, so that the suspended light-collecting plate can be carried in a state where the edge is protected, and the situation of breakage can be solved. it can.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described with reference to FIGS. In FIG. 1, a gasket 15 of the present invention has a holding groove 17 for holding a lighting plate in the middle of a block-shaped pressure-contacting portion 16 like the conventional gasket. A hanging tongue piece 18 and an upstanding tongue piece 19 are formed at the opening edge of the holding groove 17 so as to face each other, so that a tight holding is achieved. A fitting ridge 20 of a dovetail fitting type is formed on the lower surface of the pressed portion 16. A through hole 21 formed at the center of the fitting ridge 20 is a hole for imparting elasticity.

In the present invention, the upper and lower halves of the pressed portion 16 are divided into materials having different hardnesses. That is, the upper half is made of a soft material A foamed with closed cells, and the lower half is made of a non-foamed hard material B. The lower half, which must have strength for receiving, is hard, and the upper half, which requires only the external seal without receiving the daylighting plate and is flexible, is soft.

The above-described gasket 15 is pre-assembled to the lighting plate 9 at the factory in advance, and serves as an edge protection when suspended. 2 and 3 show the manner of connection of the daylighting plates 9 with the gasket 15 assembled. That is, unit support frames 25a, 25b in the latitudinal direction and the meridian direction are attached to the mounting plates 23, 24 fixed on the strength member 22 of the structure by bolts 26, and the unit support frames 25a, 25b are fixed. The fitting ridge 20 is fitted and fixed to the pair of ridges 27 formed on the upper surface of 25b.
Between the pair of ridges 27, 27, a fastening ridge 29 for fastening the packing 28 by a dovetail method is raised, and the ridge 30 is stopped with a screw.

In the above construction, the layer thickness of the soft material A is reduced with a predetermined fastening force because it is in close contact with the daylighting plate and a perfect permanent sealing effect can be expected. Then, the lighting plate 9
The level difference, which is the weir height of the puddle 32 between the top end and the top end of the ridge 30, is significantly small. As a result, the amount of accumulated water is reduced, dirt is reduced, and there is no water leakage, and the durability is improved. In addition, since the gasket of the process is integrally welded at the corner, the watertightness of the corner does not decrease.

The gasket of the present invention can be used not only for top lights but also for general sashes and curtain walls.

[0016]

Since the present invention is configured as described above, the following effects can be obtained. (1) Since the on-site caulking material is not required, labor and labor are saved, and the reliability of performance is improved. (2) The amount of stored water is remarkably reduced, dirt and water leakage are eliminated, and durability is increased. (3) When the lighting plate is assembled at the factory, it can be protected from breakage during hanging.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a gasket of the present invention.

FIG. 2 is an explanatory diagram of an embodiment in which the product of the present invention is used for a unit support frame in a weft direction.

FIG. 3 is an explanatory view of an embodiment in which the product of the present invention is used for a unit support frame in the weft direction.

FIG. 4 is a perspective view of a usage form of a conventional integrally molded gasket.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 frame 2 frame 3, 3 ridges 4 tightening ridges 5 integrally molded gasket 6 pressure-contacted part 7 holding groove 8 fitting ridge 9 lighting plate 10 screw 11 packing 12 ridge 13 caulking material 14 pool 15 gasket 16 pressure-contact Part 17 Holding groove 18 Hanging tongue piece 19 Standing tongue piece 20 Fitting ridge 21 Through hole 22 Strength member 23 Mounting plate 24 Mounting plate 25a Unit support frame 25b Unit support frame 26 Bolt 27 Projection 28 Packing 29 Tightening projection 30 Ridge 32 puddle

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Minoru Tsuji 2-11-32 Sakae Naka-ku, Nagoya City YK KA Architectural Products Co., Ltd. Nagoya Branch (58) Fields surveyed (Int. Cl. ⁶ , DB Name) E04D 3/08 E04D 3/38 E06B 3/62

Claims (1)

(57) [Claims] 1. An integrated molded gasket having a U-shaped vertical cross section provided with a holding groove for holding a lighting plate in the middle of a pressed portion, a lower half of the pressed portion receiving the light receiving plate and a hard material layer. An integrally molded gasket, wherein the upper half of the external seal is partitioned into a soft material layer.