JPS60168890A - Spacer - 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 [Background of the Invention] The present invention relates to a spacer having a main body made of synthetic resin for use in insulating glass, insulating panels, etc.

Such spacers are used to connect two panes of insulating glass in close proximity to each other at their respective edges.

Additionally, they can be used to widen the spacing and tightly bond the inner and outer walls of the panel.

The present invention is based on the problem of producing +M1ii at a low cost a spacer having a sufficiently thermally stable shape and providing a water vapor seal.

[Summary of the invention]

The present invention for solving the above problems is characterized in that the sealing lip and the bonding material or the sealing material are firmly attached to the main body, and in this case, the spacer preferably extrudes the sealing lip and the sealing material together with the main body. It is manufactured by molding. Thereby, the spacer can be formed by simultaneous extrusion molding of the respective parts necessary for bonding, sealing and adhering the window glass, and the spacer can be manufactured in one step.

Co-extrusion allows maximum bonding between the body and the resilient sealing lip and between the body and the bonding or sealing material, respectively.

When carrying out the process of the present invention, the seal lip can be made of elastomer, and the bead-shaped sealing material can be made of butyl rubber.

In this connection, the body of the spacer is box-shaped,
It can be constructed from polypropylene mixed with glass fiber or mineral powder.

In order to prevent moisture from entering between the window panes, a moisture vapor diffusion prevention layer is formed by coating at least the part of the main body that will be opened after installation. This water vapor diffusion prevention layer is made of synthetic resin, especially polyvinylidene chloride (PV).
DC). Further, the water vapor diffusion prevention layer can be made of a metal foil made of aluminum or special steel. The water vapor diffusion prevention layer made of synthetic resin can be formed by dipping, and the metal foil is attached to the main body immediately after the main body is extruded.

〔Example〕

Hereinafter, the present invention will be described by way of preferred embodiments with reference to the accompanying drawings. Note that the cross section of the spacer is shown.

In cross section, the spacer OI is formed in the shape of a hollow box (12); the side surface (14) that contacts the wall surface of the window glass or panel of the Ili thermal glass structure during assembly and installation;
(16) is a seal lip (1) made of elastomer.
8) and (20). These seal lips are
It is co-extruded with the box (12). The sealing lips (18), (20) preferably have side surfaces (14),
(16).

In the illustrated embodiment, there are four sealing lips;
The number of sealing lips may be larger or smaller.

Seal beads (22), (24) are attached to the outer wall of the spacer box in the bottom third of the sides (14), (16), and these seal beads are made of butyl rubber, for example. , box (12) and seal lip (18)
) and (20) are co-extruded. This provides a strong connection between the sealing bead and the side of the box. By using a suitable sealing material as a material for these sealing beads, it is possible to bond and seal the bead to the window glass or wall surface to which it is attached. The sealing bead must be permanently elastic or plastic to sufficiently withstand thermal expansion under compressive stress. It is known to use silicone as a sealing material between the spacer and the window glass, but silicon has insufficient water vapor dissipation resistance, so water condenses between the window glass and reduces the insulation effect and the transparency of the glass structure. It causes deterioration.

The box-like shape (12) is preferably made of polypropylene mixed with glass fibers or mineral powder to obtain sufficient compressive strength.

In the drawing, after the spacer (1 (l) is installed between two window glasses, the lower part of the surface of the shape (12) becomes an open part, this shape (12) has a water vapor diffusion prevention layer (
26) is coated. This water vapor dissipation preventionli
t (26) ensures a sufficient water vapor seal to the spacer. It is made of synthetic resin, preferably polyvinylidene chloride, but metal foils such as aluminum or stainless steel can also be used instead. Preferably, the metal foil is attached to the spacer body immediately after the body is extruded from the extruder.

Coating the spacer with polyvinylidene chloride is preferably carried out by immersing the main body (12) in a synthetic resin.

Spacer (101 (7) main body (12) has seal lips (18) (20) and seal beads (22), (2
4), and metal foil (16
) can be installed immediately after this body (12) is extruded, providing excellent mechanical properties and good filtration for sealing insulating glass structures or panels.
spacers can be produced economically.

[Brief explanation of the drawing]

The drawing shows a preferred embodiment of the invention and is a sectional view of a spacer. 0 [ll Spacer (12) Main body (14), (16) Side face (18), (20) Seal lip (22>, (24) Bead (26) Water vapor diffusion prevention layer Patent applicant Kosev Gartner & Company agent Hand Horimasu (2 people)

Claims (1)

[Claims] 1. A spacer for insulating glass, panels, etc. having a body made of a synthetic resin material, the spacer having a seal lip (18,
20) and a bonding or sealing material (22, 24). 2. Spacer according to claim 1, characterized in that said sealing lip (18, 20) and bonding or sealing material (22, 24) are coextruded with said body (12). 3. The seal lip (18, 20) is made of elastomer, and the bonding or sealing material formed in the shape of a bead (22, 24) is made of butyl rubber. Spacer according to item 2. 4゜ The main body (12) is box-shaped and made of polypropylene mixed with glass fiber or mineral powder.
Spacer as described in section. 5. At least the above main body (12
) The spacer according to claim 1, 2, 3, or 4, characterized in that a surface portion thereof is coated with a water vapor diffusion prevention layer (26). 6. The spacer according to claim 5, wherein the water vapor diffusion prevention layer is made of synthetic resin. 7. The spacer according to claim 6, wherein the synthetic resin is polyvinylidene chloride. 8. The spacer according to claim 5, wherein the water vapor diffusion prevention layer (26) is a metal foil. 9. The spacer according to claim 8, wherein the metal foil is made of aluminum or stainless special steel. 1O8 Spacer according to claim 8 or 9, characterized in that the metal foil is attached to the body (12) immediately after extrusion molding of the body (12).