JPH086057Y2 - Interviewing material for window stabilizer - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a window stabilizer used as an anti-sway device for a window glass of an automobile, a vehicle, etc., and more specifically for a window stabilizer sliding in a face-to-face contact with the window glass. Regarding the structure of the interview member.

(Prior Art) A window stabilizer is attached to a window glass of an automobile or the like in order to smooth the opening and closing of the window glass and to prevent the window glass from swinging due to vibration during traveling, wind pressure and the like. A window stabilizer is generally a flocked article that can slide on both sides of a window glass in face-to-face contact with the window glass,
It is configured to be held by a face-to-face member such as a brush or an elastic body so as to prevent vibration. The performance required for the interview member of such a window stabilizer is as follows.
That is, (1) the frictional resistance with the glass surface is small, that is, the operation is smooth and the sliding resistance is stable with repeated opening and closing with a surface pressure that maintains a certain airtightness.

(2) The window glass is not marked, that is, the window glass surface is not marked or fogged even if the opening / closing operation is repeated.

(3) When it is mounted on a mounting bracket or the like as a component, for example, it should be easy to bond, fuse, or fit other members (mounting workability).

(4) A simple mounting structure can be adopted, and necessary member strength can be maintained without damaging the parts due to work problems (member strength).

Is.

Conventionally, in order to satisfy the above required performance, a plastic molded product is often used as an interfacing member for a window stabilizer, but this product lacks smoothness when sliding due to local surface pressure. It is a thing. Further, the shock absorbing ability is insufficient, and if hard plastic is used in consideration of abrasion resistance, there is a problem that marks are likely to be formed on the glass surface.

Other attempts are to add shock absorbing ability to the surface of the synthetic resin roller, which has been devised in terms of surface hardness and elasticity (Japanese Utility Model Publication No. 57-89), and to add the glass window wiping function to the steady rest. In addition, many proposals have been made, such as using a flocked article or a member having a brush on its surface (Executive Publication No. 59-37374), and a part in which flocking is applied to a rubber material (Executive Publication No. 60-37843). However, both are incomplete.

(Problems to be solved by the invention) The inventors of the present invention have focused their attention on a fluorocarbon resin, which is being widely used for industrial purposes as an excellent material having a small friction coefficient, and have conducted earnest research on applying the fiber to a window stabilizer. As a result, they have found that the above-mentioned required performance is satisfied by using such fibers as pile yarns, and further found that a pile woven fabric having a specific ground structure is extremely preferable, and completed the present invention.

An object of the present invention is to provide an interfacing member for a window stabilizer that can satisfy the above-mentioned required performance required for the interfacing member that comes into sliding contact with the window glass in the window stabilizer.

(Means for Solving Problems) The interview member for a window stabilizer of the present invention is
The pile yarn is composed of a plain weave structure supporting the pile yarn, the pile yarn is a polytetrafluoroethylene yarn having a single yarn fineness of 10 to 20 denier, and the height of the pile yarn is 2 mm or more,
It is characterized in that the pile portion is made of a pile fabric having a napped density of 10 to 30 (10,000 pieces / inch ² ). As the polytetrafluoroethylene yarn, specifically, a fiber commercially available under the trade name of "Teflon" (manufactured by DuPont) is known.

In the pile fabric according to the present invention, a pile yarn having a fineness of less than 10 denier is used and the pile density of the surface is 100,000 / inch ²
In the following cases, the pile density on the surface is insufficient, so that voids are easily formed, and when pressure contact sliding is repeated with a required surface pressure, the voids are immediately worn. Further, it is extremely difficult to weave a pile fabric with a density of 300,000 yarns / inch ² or more using pile yarns having a fineness of 20 denier or more.

In the pile fabric according to the present invention, the substantial pile length excluding the thickness of the base fabric is 2 mm or more, preferably 2 to 5 mm
Is. If the pile length is less than 2 mm, it is difficult to maintain the smoothness required for the surface-to-face contact with the glass. On the other hand, if the pile length is too short, the absolute pile yarn amount will be too small to secure the required bulk modulus and impact absorption capacity.
The pile length may be set appropriately depending on the main dimensions of the window stabilizer itself and design factors such as surface pressure, as well as the gap structure with the automobile door box, but a length of about 5 mm is usually sufficient to obtain the required performance. Is.

In the ground weave of the pile fabric according to the present invention, one of the warp yarn and the weft yarn is a spun yarn, and the other is a filament yarn having an approximate weave of similar polymers, and the weight of the spun yarn / filament yarn is Density ratio of 1.0 or more,
A plain weave design of less than 2.0 is preferable. Here, as a standard for obtaining the weight density ratio between the spun yarn and the filament yarn, the weight ratio is calculated by converting the span yarn (cotton count ^S ) into denier with (5315 / cotton count ^S ).

There is no problem if the vertical material and the horizontal material are used in reverse, but if the weight density ratio of spun yarn / filament yarn is less than 1.0, pile pull-out defects are likely to occur,
It is not preferable because the strength balance of the horizontal becomes poor and the end part is easily unraveled when cutting the woven fabric to a predetermined size, and when bonding or fusing to a bracket etc. to complete as a window stabilizer. However, its adhesive strength is weakened, which is not preferable. In addition, when mechanical fastening methods such as screw fastening and pin fastening are adopted, it is clear that fraying of the ground structure causes a fatal quality defect.

The reason why the above-mentioned drawback is eliminated by setting the weight density ratio to 1.0 or more is that the fluff of the spun yarn is entangled with the filament yarn even slightly, and the apparent bond by the back coat strengthens the ground structure. It seems that this is due to the effect of spun yarn.

On the other hand, if the ratio of spun yarn / filament yarn is 2.0 or more, the vertical / horizontal balance is unbalanced, and the distribution of pile yarn is biased to vertical / horizontal, so that special performance such as one-way reinforcement is required. It is not preferable except for cases.

That is, if the ground structure is configured as described above, the pile does not come off, there is no mistake in cutting and fusing, and the required member strength can be maintained.

The warp yarn and the weft yarn are preferably made of polyamide-based fibers such as 6 nylon and 66 nylon, but low melting point polyester fibers and low melting point polyamide fibers may be used for the purpose of enhancing the fusion performance. Aromatic polyamide fibers, carbon fibers, and conductive / antistatic fiber materials may be mixed for the purpose of reinforcement.

The pile woven fabric according to the present invention is generally woven by a pile loom, and then the pile length is adjusted by shirring, and the back side opposite to the pile side is coated with a resin to prevent fluffing and strengthen the base fabric. It can be manufactured. Here, the resin to be coated on the back surface is not particularly limited, and may be an emulsion type or a solvent type, but when it is used as a polyurethane type resin base, good results are obtained in the welder property.

The pile fabric thus obtained is one in which a polytetrafluoroethylene yarn pile is erected, and is, for example, a wide pile fabric as shown in FIG. The pile fabric shown in FIG. 1 is a fabric in which a plurality of pile ridges are arranged side by side in the width direction at a predetermined interval. As the interviewing member of the present invention, one or two rows of pile ridges are used for the window glass and the face sliding. It is quite possible to achieve that purpose by moving. Therefore, the interviewing member for a window stabilizer of the present invention is usually a pile fabric having one or two rows of pile ridges, but may of course have three or more rows of pile ridges.

FIG. 2 is an explanatory view showing a row in which the interview member of the present invention is fixed to a mounting bracket (6) of a window stabilizer. A plastic in which a rubber elastic spacer (7) is inserted between the back side of the fabric and the plastic or metal bracket (6) to sandwich the bracket (6) and both ends of the pile fabric (3). Alternatively, it is pressed and fixed by a metal spring plate (8).

In this case, as the rubber elastic body, in addition to natural rubber, SBR,
NBR, EPDM, CR-based synthetic rubber, a mixture thereof or a foam material, and polyurethane and its foam can be used. Further, as a method for attaching the woven fabric, it is also possible to directly adhere the ground structure of the pile woven fabric to the bracket by an ultrasonic welder or a high frequency dielectric welder. in this case,
Since the spring plate has only a meaning of an end cover, it can be designed without it.

(Examples) Examples 1 and 2 and Comparative Examples 1 to 3 As an interview member for a window stabilizer, a pile fabric having the following specifications was prepared.

Effective pile height: 3 mm, pile width (back standard): 20 mm, number of ridges:
24, ground structure part: 20mm evenly spaced, total length (including ears): 10
00 mm.

The types of yarn used and the textile design strip are as follows:
The number of pile yarn plies was changed to 1 to 4 to obtain various woven fabrics having different pile densities. The results are as shown in Table 1.

 The pile yarn density is calculated by the following equation.

Pile density (pieces / inch ² ) = F × P × O × N where F: number of filaments P: number of plies O: number of reeds (feathers / inch) N: number of warp threads (pieces / inch)

Comparative Examples 4 to 6 1200 denier / 9 used in the above examples as pile yarn
120 instead of 0 filament (single yarn fineness 13.3 denier)
An interview member for a window stabilizer made of a pile fabric under the same conditions as in Example was prepared except that 0 denier / 180 filament (single yarn fineness of 6.7 denier) was used and the plies were set to 1, 2, and 3. The results are as shown in Table 1.

Among the obtained pile fabrics, Example 1, Example 2, and Comparative Example 5, which had good weavability, were back-coated with a polyurethane resin base, dried, and then cut into ridges with a predetermined size. The obtained pile fabric was tested by a door maker as an interview member for a window stabilizer. As a result, in Example 1 and Example 2, good results were obtained for a window stabilizer. On the other hand, in Comparative Example 5, the appearance was good, but the texture was too soft and it was easily crushed, resulting in insufficient performance for a window stabilizer.

Further, as shown in FIG. 2, the contact members for window stabilizers of Examples 1 and 2 were manufactured by inserting an elastic spacer made of SBR synthetic rubber between the back surface of the cloth and the plastic bracket. Both ends of the non-ridge portion were pressed and fixed by the plastic spring plates and mounted, and the mounting workability was good, and the excellent steady rest effect was achieved.

(Effect of the device) The contact member for the window stabilizer of the present invention is a pile woven fabric composed of polytetrafluoroethylene yarn in the pile portion and having a specific nap density, so that the friction with the glass surface is small and smooth. It slides on the glass and does not scratch the glass. Further, due to the volume elasticity effect of the pile yarn, an excellent steady rest effect is exhibited. Therefore, the window stabilizer using the interviewing member of the present invention is extremely good as a steadying device for a window glass of an automobile or the like.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an example of a pile fabric relating to a surface-contacting member for a window stabilizer according to the present invention. Second
FIG. 1 is an explanatory view showing an example of a bracket equipped with a surface-contacting member for a window stabilizer according to the present invention. (1) …… Pile height of polytetrafluoroethylene yarn (2) …… Pile part of polytetrafluoroethylene yarn (3) …… Ground structure that supports the pile part (4) …… Vertical yarn that constitutes the ground structure (5) …… Weft that constitutes the ground structure (6) …… Mounting bracket (7) …… Rubber elastic spacer (8) …… Spring plate

Claims (2)

[Scope of utility model registration request] 1. A face-contacting member arranged on a window stabilizer for slidingly contacting a window glass to prevent the window glass from swaying, the face-contacting member being composed of a pile yarn and a plain weave structure supporting the pile yarn. It is a polytetrafluoroethylene yarn with a single yarn fineness of 10 to 20 denier, and the height of the pile yarn is
With a thickness of 2 mm or more, the napped density of the pile part is 10 to 30 (10,000 pieces / inc
An interview member for a window stabilizer, which is made of a pile fabric which is h ² ). 2. One of a warp yarn and a weft yarn constituting a ground structure of a pile fabric is a spun yarn, and the other is a filament yarn composed of the same kind of polymer as the spun yarn. Weight density ratio is 1.
The interview member for a window stabilizer according to claim 1, characterized in that it is 0 to 2.0.