JPS61165472A - Lighting top light - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a top-line for daylighting made of a glass cloth/Teflon coating film provided on a roof having a film structure using a metal film.

[Conventional technology]

Recently, membrane structures have been developed and are attracting attention as a new roof structure type for buildings. There are two types of membrane structures: pneumatic membranes and tension membranes, and they have a variety of features, including the ability to create large spaces without pillars and the ability to create new architectural forms not found in conventional construction methods. Materials for the membrane include, for example, Teflon-coated glass fiber membranes and metal membranes made of thin steel plates, stainless steel plates, or the like. A membrane structure using a metal membrane requires a device for lighting, unlike the case of a glass fiber membrane.

FIG. 5 is a perspective view showing an example of a top light for daylighting installed on a roof with an air membrane structure using a metal membrane. 1 is a metal film made of, for example, a thin steel plate or stainless steel; 2 is a top light made of plastic, for example; and 3 is a tension ring.

The top light 2 has a tension ring 3 in the center of the metal film 1.
It is installed via. Further, the metal membrane 1 forms a roof R having an air membrane structure as shown in FIG. 6, and the roof R is supported by a support structure 4.

[Problem that the invention seeks to solve]

The conventional top light 2 configured as described above has a tension ring 6 to share the film stress in the vicinity.
Therefore, the weight increases by the weight of the tension ring 3, and there is a drawback that excessive weight is added to the roof R. This drawback is not limited to the case of the air film structure, but also applies to the case of the tension film structure.

The present invention was made to solve the above-mentioned drawbacks, and its purpose is to obtain a lightweight and simple top light for daylighting that does not add excessive weight to a roof structure using a metal membrane. do.

[Means for solving problems]

In order to achieve the above object, the present invention extends cables radially between the upper end of one of two supporting columns with built-in springs, the lower end of the other, and a central ring fixed to a metal membrane. The system provides a top light for daylighting with a glass cloth Teflon coating on the upper side of the cable.

[Function] The membrane stress transmitted from the central ring of the daylighting top light is borne by the cable, support column, and spring.

〔Example〕

FIG. 1 is an explanatory diagram showing an embodiment of the present invention, showing a translucent top light L having a glass cloth/Teflon coating film provided at the center of a roof R having a metal film structure. In addition,
FIG. 2 is a partially cutaway perspective view of FIG. 1. In both figures, 1 is a metal film made of, for example, a thin steel plate or a stainless steel plate, and forms the roof R of the air film structure.

6 is a support column with a built-in spring shown by 7.
The upper and lower parts have different diameters, and can be expanded and contracted in the vertical direction by the elasticity of the spring 70.

8a and 8b are cables, 9 is a center ring, and 10 is a holding ring. The cables 8a, 8b have intermediate portions fixed to the upper end 6a and lower end 6b of the support column 6, and both ends are further fixed by a center ring 9 and a presser ring 10. As shown in FIG. 2, a plurality of these cables 8a, 8b are provided and are stretched radially between the center ring 9 and the presser ring 10. Reference numeral 11 denotes a transparent glass cloth/Teflon coating film, which is provided above the radially arranged upper cable 8a, and its ends are fixed by a center ring 9 and a retaining ring 10.

FIG. 3 is an enlarged view of the main part of FIG. 1. Note that parts having the same functions as those in FIG. 1 are denoted by the same symbols, and explanations thereof will be omitted. 1
Reference numeral 2 denotes cable attachment hardware provided at the ends of the cables 8a and 3b, and 13 is an elastic member (for example, neoprene) for maintaining airtightness. 14a and 14b are bolts and nuts, holding ring 10, elastic members 13, 13, glass cloth/Teflon coating I [11, metal film 1
, the cable attachment hardware 12 and, for example, the U-shaped central ring 9 are tightened and fixed.

Note that the cable mounting hardware 12 shown in FIG.
As shown in the figure, it may have a truncated conical shape 5, in which case the cable attachment hardware 20a fits into a recess 20b provided in the central ring 9.

A detailed explanation of the present invention configured as above is as follows. In the roof R having an air membrane structure using the metal membrane 1, air pressure is applied from inside to give tension to the metal membrane 1 and form a stable curved surface.

Therefore, membrane stress is generated in the direction shown in FIG. 1 and in a direction perpendicular to this direction. Conventionally, this membrane stress was shared by the tension ring 3 shown in FIG. 5, but in the present invention, the membrane stress is transmitted from the central ring 9 to the cables 8a, 8b. Furthermore, this membrane stress is transmitted to the support column 6 from the cables 8a, 8b via the upper end 6a and lower end 6b of the support column 6. Since the support column 6 is provided with a spring 7, the support column 6 expands and contracts depending on the degree of membrane stress and stops at a balanced position. Shown is the case where it is installed on a membrane roof! -7 However, the present invention is not limited to this.tc<gold Mu of tension film structure
2. [Effects of the Invention] As is clear from the above explanation, according to the present invention, there is no need for a tension ring, so there are significant advantages such as a top light for daylighting, Hg, and simplicity. It has the effect of

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing an embodiment of the present invention, FIG. 2 is a partially cutaway perspective view of FIG. 1, FIG. 6 is an enlarged view of the main part of FIG. FIG. 5 is a perspective view showing an example of a conventional daylighting top light, and FIG. 6 is a perspective view showing an example of a roof of a conventional air structure. 1...Metal film 6...Support column 7...Spring 8a, 8b...Cable 9...Central ring 11...Glass cloth/Teflon coating Hanging L...Top light 1°゛° Roof agent Patent attorney Sanro Kimura Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] In a top light for daylighting installed on a roof with a membrane structure using a metal membrane, two support pillars with built-in springs of different diameters are connected to one upper end, the other lower end, and a central ring fixed to the metal membrane. The cables are stretched radially between the
A top light for daylighting characterized by providing a glass cloth/Teflon coating film on the upper side of the cable.