JPS5926320A - Manufacturing method of run channel for glass - Google Patents

Abstract

PURPOSE:To secure the form and size of a run channel as specified even if specific gravity in an elastic body is small as well as to make the promotion of lightweightiness attainable, by sticking a metallic sheet fast to the backside of the felt-like elastic body made up in a long flat sheet form, while bending the said elastic body so as to cause the metallic sheet to be turned outside. CONSTITUTION:A felt-like elastic body 5 coupled with a frizzily curled polyamide fiber via vulcanized rubber is made up in a long flat sheet form having a proper section. And, polishing a slideway 6 of the said elastic body 5, the polyamide fiber is made to expose outside and fluffed out to make its sliding characteristics yet better, while a bending groove 7 and a shallow bottom 8 are formed up on a surface 6. Afterward, a thin metallic sheet 10 is stuck fast to a backside at the side opposite to the slideway 6 while the elastic body 5 is bent along the groove 7 so as to cause the metallic sheet 10 to be turned outside whereby such a glass run channel providing the slideway 6 with a deep sliding groove 2 is produced. If doing like this, not only form and size as specified can be secured even if specific gravity in the elastic body 5 small but also the promotion of motion of its lightweightiness can be achieved.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a launch channel for glass, and particularly to a method for producing a launch channel for glass made of a felt-like elastic body.

Glass launchers 4 and channels made of felt-like elastic material have good sliding properties and are widely prized for use in automobiles.

Conventionally, such glass vessels/channels are made using a felt-like elastic body f11 in the form of a long column made of crimped polyamide fibers bonded with vulcanized rubber, as shown in Fig. 1. A deep sliding groove (2) was cut in the longitudinal direction, and the cross section was made into a U-shape according to the standard dimensions, and it was inserted into the Sara (3).

Usually, the columnar felt-like elastic body (1) has a specific gravity of Ojθ~θ in consideration of machinability to create the deep sliding groove (2).
tg was used.

However, as is well known, in the automatic industry, there is a particular demand for weight reduction, and in order to meet this demand, it has been a challenge to make the light channel for glass even more expansive.

Therefore, it has been considered to lower the specific gravity of the felt-like elastic body that makes up the glass launch channel.・Following the movement of the blade, it becomes easy to bend, and the side part f41, (41, deep bottom part (5
), etc. Specifically, the thickness is inaccurately cut, and this tends to occur especially at the deep bottom (5) (Typically, the thickness is designed to be between d and 3 to promote weight reduction.) It was noticeable in And if it becomes thin, the bullet V in that part
It was not possible to prevent the glass from vibrating during driving, and if the gap was too thick, there was a risk that the glass would not be able to fit into the specified position.

The present invention accomplishes the above-mentioned problems II! This product was invented in consideration of the above, and even if the specific gravity of the felt-like elastic body constituting the crow/chanol is small, the side part (41, +41, tN and bottom part (5 ) The purpose of the present invention is to provide a method for manufacturing a lunch channel for crows that produces a thickness according to the standard.

That is, in the present invention, a felt-like elastic body made by bonding crimped polyamide fibers with vulcanized rubber is formed into a long flat plate having an appropriate cross section, and a metal plate is pasted on the back side of the flat formed body. A launch channel for crows was produced by bending the adhered body along the longitudinal direction so that it became the outer surface of the metal plate, and making the cross section perpendicular to the longitudinal direction U-shaped.

As mentioned above, the gist of the present invention is to form a sliding groove by integrating a felt-like flat elastic body with a metal plate and bending it along the longitudinal direction. The opposite side, i.e., the surface, may remain one surface, but it is preferable that it be folded easily and smoothly when folded along the longitudinal direction together with the metal plate, and that the dimensions of the side and bottom are in accordance with the standard. A better launcher/flank for glass can be obtained by making grooves at predetermined locations so that they can be easily exposed.

In the latter case, the deep sliding grooves on the surface of the felt-like flat elastic body constituting the final product, that is, the glass chamber, are formed by bending along the longitudinal direction. The grooves to be cut on the surface (=j) may be shallow and rough grooves with barbs that help bending. Therefore, the specific gravity of the felt-like flat elastic body is reduced considerably, specifically by about θ3g to Oatθ. Things happen,
Weight reduction can be achieved without impairing moldability.

Moreover, in the present invention, the flat molded body is vulcanized,
Although it has elasticity, it is attached integrally with the metal plate, and is shaped so that the cross section perpendicular to the longitudinal direction is U-shaped. The flat elastic body is then fixed to a metal plate, and it does not restore its shape and retains its predetermined shape, and its dimensions do not change over time, making it possible to obtain a product that is extremely easy to handle. .

If the metal plate has a /l of about θ2 to θ3w, it satisfies two points: the formability of the glass launcher/flank can be improved, and the dimensions after the product can be maintained permanently. Not only that, but it also has the advantage that the window can be opened and closed by moving it downwards, eliminating the need for the conventional heavy Sanon. (Support points that support the weight of the glass are usually built into the vehicle body.)

Example Natural rubber 700 parts by weight Polyamide fiber (7-30 denier) 100
u sulfur
3 〃Zinc Flower O
〃Stearic acid / 〃Vulcanization accelerator Komel Kabutobe / Zothiazole /
Part by weight Tetramethylthiuram monosulfide
/, 2 Anti-aging agent The felt bullet 1<l integral used in the present invention has the composition as described above, and first, the manufacturing method thereof will be explained in detail.

Natural rubber and polyamide fibers are uniformly dispersed using an open roll with a surface temperature of 3θ to 0θ°C, taken out, and left to cool for 2 hours at normal humidity. Perform the same operation again. This kneaded material is put into an open roll, and sulfur, zinc white, stearic acid, a vulcanization accelerator, an anti-aging agent, etc. are mixed into the open roll.

This mixed material is left at a temperature for 2 hours to cool down, then heated and portioned out to a predetermined thickness. The separated dough is placed in a heating oven at a temperature of 70 to 0°C for 20 to 30 minutes, and expanded to 27 to 35 times the predetermined thickness.

This expanded dough was placed in a second press machine with a hot plate temperature of /, 2J℃~/33' (press pressure 10~30Kp7c,
Vulcanize under pressure for 4 minutes to obtain the same thickness as the predetermined thickness.

After taking it out from the press and cooling it, it is cut into a predetermined length of 11 cm to obtain a long felt-like flat elastic body.

The sliding surface of this felt-like flat elastic body is polished with sandpaper to expose the polyamide fibers and fluff them to improve sliding properties. The fluffed surface is cut with a chip saw to form a groove (7) (force and shallow bottom surface (8)) on the surface (6) that promotes bending, as shown in FIG. Since the cutting allowance is shallow, cutting is easy even if the specific gravity of the flat elastic body is small, and dimensional accuracy is reliably maintained.
), and using a press machine with a drawing jig set, groove +71, f so that the metal plate OI is on the outside surface.
Fold along 7+ and make the surface as shown in Figure 5 (6)
A launch channel for glass having a deep sliding groove (2) was obtained.

In addition, during the above manufacturing process, the metal plate (10) may be attached before the surface (6) of the flat elastic body is cut (.

The physical properties of the felt-like flat elastic body used in this example were as follows.

Specific gravity θ3 Hardness Gu! (Asker hardness) Tensile strength (longitudinal), □KYd (;ISK, <s°' Vulcanized rubber test method).

f 10 and νd(〃　　　　) stretch Vertical 300% (〃) Horizontal 22θ% (〃-)

[Brief explanation of the drawing]

Figure 1 is a perspective view of a columnar felt-like elastic body used in the process of obtaining a launcher/flank for glass by a conventional manufacturing method, and Figure 1 is a perspective view of a launch channel for glass obtained by a conventional manufacturing method. Figure 3 is a perspective view of a felt-like plate-like elastic body used in the present invention, Figure 9 is a perspective view illustrating a part of the main part of the manufacturing process of the present invention, and Figure The figure shows a perspective view of a launch channel for glass obtained according to the invention. /... Felt-like elastic body, K... Deep sliding groove, 3.
... Sanshi, g, da... side, -t... deep bottom,
Go... surface, 2, 7... groove! ... Shallow bottom, Wa... Back, 10. Metal plate patent applicant 11 y Mifelt Co., Ltd. Procedure
Amendment 1 (Method) December 11, 1982, Commissioner of the Japan Patent and Trademark Agency 2, Name of the invention: Method for manufacturing glass launch channel 3. Person making the amendment: July 7.2, 1980 (Delivery date: 1982) Year/July 3
0 days! Drawing 2 subject to amendment Contents of amendment Figure 5 of the drawing will be supplemented as shown in the attached sheet. Figure 5

Claims (1)

[Claims] A felt-like elastic body made by bonding crimped polyamide fibers with a vulcanized comb is formed into a long flat plate with an appropriate cross section, a metal plate is attached to the back of the flat formed body, and the attached body is A method for manufacturing a lunch channel for crows, which is characterized by bending a metal plate along the longitudinal direction so that it becomes the outer surface, and making the cross section perpendicular to the longitudinal direction U-shaped.