JPS6233891Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a soundproof rail for door cars.
To provide a soundproof rail capable of preventing the vibration transmitted from the door roller to the rail from being directly transmitted to the sill and eliminating the sound of the door roller passing due to contact of the door roller with a fixing member of the rail.

Conventionally, a structure in which a hard cover body is attached directly to a soft rail body is known, but since the rail body and cover body are originally formed by closely contacting a single rail, it is not possible to The rail body must be elastically deformed and the rail body must be fitted with considerable force for installation. Therefore, the work of attaching a cover body to a rail body fixed to a narrow sill area is not only quite difficult, but there is also the risk of damaging the soft rail body with the hard cover body, and there is a risk of damage during installation. This was a cause of deteriorating the durability of the entire rail. In addition, once fitted, it is difficult to remove it, and it is also impossible to move the rails in the longitudinal direction to align them, and after long-term use, the two stick together. There was a problem in that it was not possible to replace just the cover body.

Therefore, the present invention covers the surface of the cushioned rail body with which the cover body is in close contact with a metal coating, so that the cover body can be easily attached and detached without frictional resistance, and it also allows the cover body to be easily attached and removed in the longitudinal direction after attachment. To provide a soundproof rail for a door wheel whose position can be easily adjusted and whose cover body can be easily replaced by preventing sticking with a metal coating even after long-term use.

In the illustrated embodiment, reference numeral 1 denotes a rail body integrally molded from a material having cushioning properties such as hard rubber or synthetic resin, and has a substantially trapezoidal cross section and gently tapered surfaces 1a on both sides. The tapered surface 1a is interrupted by an engagement groove 2 provided downward from the center in the height direction of the rail body 1, and the lower side of the engagement groove 2 is connected to the tapered surface 1.
It constitutes a side wall 1b that extends outward from a.
3 is a threshold with which the bottom surface of the rail body 1 comes into contact. 4 is a fixing screw for fixing the rail main body 1 to the sill at a predetermined position in the longitudinal direction thereof.
The surface of the rail body 1, except for the side wall 1b, is covered with a thin metal coating 5 made of aluminum or the like. Reference numeral 6 denotes a cover body that closely contacts the outer periphery of the metal coating 5 to cover the rail body 1, and is configured such that a fitting frame piece portion 6a at the lower end thereof fits into the engaging groove 2. The cover body 6 is integrally formed from a metal plate such as stainless steel in order to prevent wear of the rail body 1.

In the above configuration, the metal coating 5 covering the outer periphery of the rail body 1 is attached to the cover body 6 on the rail body 1.
When installing the rail body 1 and the cover body 6, mutual elastic deformation and resistance during insertion and fitting of the two are eliminated, making it easy to install the rail body 1 and the cover body 6. This has the effect that the positions can be adjusted by mutually moving them in the longitudinal direction. In addition, the rail body 1 portion located below the fitting frame piece 6a of the cover body 6 has the effect of absorbing vibrations generated in the cover body 6 due to its cushioning properties and preventing the vibrations from being transmitted directly to the sill. Since the body 6 covers the fixing screw 4, it comes into contact with the door roller,
It has the effect of preventing passing noise from being emitted.

As described above, according to the soundproof rail for a door car according to the present invention, when the metal cover body 6 is attached after the rail body 1 having cushioning properties is fixed to the threshold where the work environment is narrow and bad, the rail Since the metal coating 5 is provided on the surface of the main body, the cover body can be easily attached and detached without frictional resistance, and the soft rail body will not be damaged. Easy to adjust, etc.
In addition to being reliable and easy to use, the metal coating protects the surface of the rail body made of hard rubber when replacing the cover body after long-term use.
Since it prevents the cover from sticking, it is effective to easily replace the cover without damaging the rail body, which is of great practical benefit.

[Brief explanation of the drawing]

The drawing is a longitudinal sectional view showing an embodiment of the product of the present invention taken along a plane orthogonal to the longitudinal direction. DESCRIPTION OF SYMBOLS 1...Rail body, 2...Engaging groove, 3...Sill, 4...Fixing screw, 5...Metal coating, 6...Cover body.

Claims (1)

[Scope of utility model registration request] A rail body 1 having cushioning properties such as hard rubber or synthetic resin to be fixed to a threshold, and the rail body 1
A cover body 6 having abrasion resistance such as metal, which is attached to the rail body 1 so as to cover at least the part that the door roller comes into contact with and not to come into contact with the sill.
and a metal coating 5 covering the surface of the rail body 1 to which the cover body 6 is in close contact.