JPS5829266Y2 - Construction structure of glass plate - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a construction structure for glass plates.

Generally, when the side edges of a large glass plate are elastically fixed in the sash frame groove using an elastic sealant such as silicone sealant, the sealant is not completely filled into the sash frame groove, and both sides of the glass plate and the sash are The structure is such that an elastic back-up material is filled in the back of the gap between the inner wall of the frame groove and an elastic sealant is filled in the gap above the back-up material.

The purpose of this structure is to avoid a so-called three-sided adhesive structure, where the elastic sealant penetrates deeper than the glass edge, resulting in a complex stress distribution and peeling. This is for reasons such as making it possible to use only a single sealant, or saving on the use of relatively expensive elastic sealants.

Conventionally, in the construction structure described above, a relatively hard piece of rubber was used as the backup material, which caused the following problems.

In other words, sash frames made of inexpensive steel often have warps, kinks, etc. that impair their straightness.As a result, the glass plate also deforms according to the shape of the sash frame, impairing the flatness of the glass plate. There was a problem in that the unevenness of the inner wall of the sash frame placed a local load on the glass plate, distorting the image reflected on the glass plate and detracting from the unique beauty of the glass screen.

On the other hand, if a soft back-up material is used to avoid the above problem, the back-up material will be locally greatly dented when filled with the elastic sealant, and the adhesive area of the sealant will be uneven along the sides of the glass plate. A situation may arise in which load-bearing performance cannot be obtained.

The present invention provides a glass plate construction structure that solves the above-mentioned conventional problems in the construction of large-sized glass.

The present invention will be described below with reference to embodiments shown in the drawings.

Fig. 1 shows a cross-sectional view of a sliding window, in which the side edge of the glass plate 2 is fitted into the groove of the sash frame 1, and its lower edge is placed on the setting block 3, and both sides of the glass plate and the sash frame are placed. A back-up material 4 is placed on the back side of the gap between the groove inner wall 1a.
The gap on the back-up material 4 is filled with an elastic sealant 5 such as a silicone sealant.

In the above construction structure, the back-up material 4 of the present invention has a large compressive strain rate (amount of deformation per unit load) in the direction normal to the surface of the glass plate 2, and a relatively low compressive strain rate in the direction parallel to the surface of the glass plate. Use a small piece of elastic material.

- For example, an inorganic fiber mat made by laminating inorganic fibers such as glass fibers with a binder is cut into strips, the laminating direction of the relatively soft fibers is aligned with the normal direction of the glass plate 2, and the mat is compressed. The fibers, which are strong against force, are used as a back-up material 4 by selecting the direction of the end face so that the length direction thereof is parallel to the glass plate 2 surface.

By using the back-up material 4 as described above, the pressing force of the back-up material 4 against the glass plate, which causes distortion of the reflected image reflected on the glass plate surface, can be kept relatively small, and the sealant 5 can be kept relatively small. Since it has relatively high rigidity in the supporting direction, it will not be significantly deformed by the filling and discharging pressure and weight of the sealant 5, and a sealing layer with a uniform adhesive thickness dimension along the sides of the glass plate can be obtained.

There is no particular limitation on the cross-sectional shape of the back-up material 4, but it is desirable to make the contact area with the glass plate surface as small as possible. It is preferable that the shape is approximately an inverted trapezoid, with the width 12 of the lower surface being smaller than the width 11 of the upper surface on which the sealant 5 is placed.

However, in this case, the top and sides of the sash frame 1 (not shown)
Since there is a risk that the back-up material 4 may fall off or become misaligned after insertion, the bottom surface of the back-up material 4 is attached to the bottom wall of the groove of the sash frame 1 via an adhesive layer 6 as shown in FIG. It is best to wear clothes.

FIG. 3 shows a cross-sectional view of another back-up material according to the present invention.

In this example, a film body 8 such as metal foil or plastic film is pasted on both sides of the sponge body 7 to make it relatively stiff in the vertical direction in FIG. Use it in a position facing the

FIG. 4 shows a cross-sectional view of still another back-up material according to the present invention.

In this example, the bellows are formed of thin rubber, and the bellows surface 9 of the bellows is used as a support surface for the sealant 5.

Although the present invention has been described above with respect to a window, the present invention is not limited to this. For example, as shown in FIG. On the other hand, it can also be applied when fixing elastically.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of a rolling window showing an embodiment of the present invention, FIG. 2 is a perspective view showing a part of the back-up material 4 on the same side, and FIG. FIG. 4 is a cross-sectional view showing still another example of the back-up material; FIG. 5 is a cross-sectional view showing another embodiment of the present invention. . 1... Satsushi frame, 2... Glass plate, 3
... Setting block, 4... Backup material, 5... Elastic sealant, 6.
... Adhesive layer, 7 ... Sponge body, 8 ...
...Film body.

Claims (1)

[Scope of utility model registration request] The side edge of the glass plate 2 is fitted into the groove of the sash frame 1, and the back-up material 4 is filled in the back of the gap between both sides of the glass plate and the inner wall of the sash frame groove. In the construction structure of the glass plate in which the cavity is filled with an elastic sealant 5, the back-up material 4 has a large compressive strain in the direction normal to the surface of the glass plate 2, and has a relatively large compressive strain in the direction parallel to the plane of the glass plate 2. A glass plate construction structure characterized by using an elastic material with a small compressive strain rate.