JPH07317419A - Runner rail - Google Patents

Abstract

PURPOSE:To enhance workability by burying a rail receiving member into a surface finish mortar of a floor slab in such a fashion that the top of the receiving member may be flush with the floor surface and pressing a rail leg part into a rail leg fitting space in which a runner guide groove is formed on the top of the rail leg fitting space. CONSTITUTION:A synthetic resin-made rail receiving member 1 is placed on a floor slab A at a specified position and a mortar layer B is cast so that it may be flush with the top 4c. A mounting leg 7 of a groove type rail 2 is pressed into a rail leg fitting space 5 by breaking a thin walled part 4a of the receiving member 1 and forcibly opening an elastic blocking projected piece 4b and mounted. Then, a floor finish material C is joined with a lateral side of a main body 6 of a rail 2 and loaded on the mortar layer B. Since the mortar layer B may be constructed by adjusting with the top of the receiving member, this construction makes it possible to omit a troublesome work that places the mortar layer accurately at a lower level than the top of the rail as demanded by a prior art work, and what is more, to prevent the mortar from being deposited on the surface of the rail and enhance a sound absorption capacity as well.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door roller rail, and more particularly to a grooved door roller rail used by being embedded in a mortar layer formed on a floor slab.

[0002]

2. Description of the Related Art Conventionally, as a door roller rail of this type, as shown, for example, in Japanese Utility Model Application No. Sho 59-124281, it has a substantially rectangular cross section, and its upper surface has a generally V-shaped cross section. It is known to have a door roller guide groove in the shape of a door and a plurality of upper and lower ridges formed on the left and right sides of the layer in the longitudinal direction. This door roller rail is embedded in the surface finishing mortar layer on the floor slab, leaving only an amount corresponding to the thickness of the floor finishing material, and the floor finishing material laid on the mortar layer and the upper surface of the rail. It is used in a substantially flush manner.

[0003]

However, if the mortar layer is too thick or too thin, a step is generated between the rail and the floor finishing material. The rails must be embedded while forming a mortar layer on the floor slab, leaving exactly the amount corresponding to the thickness of the rail. Therefore, not only is it extremely laborious for a skilled person to perform the work, but it is also necessary to be careful not to accidentally attach the mortar to the rail top surface. Actually accurate and flawless burial construction is extremely difficult. Met. Further, as the door rail of this type, a metal or a hard synthetic resin integrally molded in consideration of its durability was generally used, but these are difficult to absorb the vibration sound. was there.

The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a door roller rail capable of extremely easily and accurately performing this kind of rail laying work and having an excellent effect of absorbing vibration noise. To aim.

[0005]

Therefore, the door rail according to the present invention preferably has a height corresponding to the thickness of the surface finishing mortar layer (B) formed on the floor slab (A). After having a rail receiving member (1) made of synthetic resin and a thickness corresponding to the thickness of the floor finishing material (C), the rail receiving member (1) is embedded in the mortar layer (B), It is composed of a groove type rail integrally assembled with the member (1).

That is, a rail receiving member (1) made of a synthetic resin is embedded in the surface finishing mortar layer (B) on the floor slab (A) so that the upper surface (4c) is flush with the rail receiving member (1). The grooved rail (2) to be assembled, and the receiving member (1) has a thin rupturable portion (4) at an intermediate portion in the width direction thereof.
a) or a rail leg fitting space (5) whose upper end is closed by a pair of elastic closing protrusions (4b) (4b) facing each other through a cut (4d), while the rail (2) is provided. Has a thickness corresponding to the thickness of the floor finish material (C),
A main body (6) having a door roller guide groove (6a) formed on its upper surface, and a mounting leg (7) forcibly press-fitted and fixed in the space (5) on the lower surface of the main body (6). Is.

[0007]

Embodiments of the present invention will now be described with reference to the drawings. This door rail is composed of a rail receiving member (1) and a grooved rail (2), and is provided in a separated and independent state, as shown in FIG. 2, until just before being actually mounted.

The rail receiving member (1) has a cushioning portion (4) having a predetermined thickness so as to cover the inner peripheral surface and the upper end surface of the pedestal portion (3) which is formed in a generally U-shaped cross section. ) Is formed, and the upper end of the buffer portion (4) is opposed to the middle portion in the width direction by a pair of elastic blocking protrusions (4b) (4b) that are opposed to each other via a thin rupturable portion (4a). It is closed and has a rail leg fitting space (5) inside. The height of the receiving member (1) is preset to a height corresponding to the thickness of the surface finishing mortar layer (B) formed on the floor slab (A). As a material, a hard synthetic resin is preferably used for the pedestal part (3) and a soft synthetic resin is preferably used for the buffer part (4).

On the other hand, in the groove type rail (2) assembled to the rail receiving member (1), a mounting leg portion (7) is vertically provided at a central portion of a lower surface of a main body portion (6), and a cross section thereof is substantially T. It has a letter shape. The main body portion (6) is set to a thickness corresponding to the thickness of the floor finish material (C) used, and a door roller guide groove (6a) having a substantially V-shaped cross section is formed in the center of the upper surface. It was done. The mounting leg portion (7) has a length and a width corresponding to the space portion (5) of the rail receiving member (1), and has a plurality of upper and lower tiers along the longitudinal direction on both sides in the width direction. (7a) ... It is provided so as to be firmly fixed and not easily come out when the space portion (5) is forcibly press-fitted. Further, the tips of the leg portions (7) are sharply formed so that the thin portion (4a) can be easily broken. As a material of the rail (2), a metal such as an aluminum alloy or a hard synthetic resin is preferably used.

Then, this door roller rail is laid as follows. First, the rail receiving member (1) is placed at a predetermined position on the floor slab (A), and the mortar layer (B) is formed so as to be flush with the upper surface (4c) thereof. Then, thereafter, the mounting leg portion (7) of the groove type rail (2) is ruptured at the thin portion (4a) of the rail receiving member (1) to force the elastic closing protrusions (4b) and (4b). The groove type rail (2) is assembled to the rail receiving member (1) by press-fitting into the space portion (5) while opening. Then, the floor finish material (C) is brought into close contact with the side surface of the main body portion (6) of the rail (2) and placed on the mortar layer (B) to complete (see FIG. 1).

In the above embodiment, the pair of elastic closing projections (4b) are arranged so that the upper ends of the rail receiving members (1) face each other in the widthwise intermediate portion through the rupturable thin portion (4a).
Although it is shown that it is closed by (4b), it may be closed by a pair of elastic closing projections (4b) (4b) facing each other through a cut (4d) as shown in FIG. Further, as shown in FIG. 3, the rail receiving member (1)
It is also permissible to form the buffer portion (4) of (1) so as to cover the outside of the pedestal portion (3).

[0012]

INDUSTRIAL APPLICABILITY The door roller rail according to the present invention is used by being installed substantially flush with the floor surface like the conventional groove type door roller rail, and the rail portion does not project from the floor surface. In addition to the effects that pedestrians do not trip, there is little shock when passing a car (wheelbarrow, wheelchair, etc.), and cleaning is easy, in addition to the following unique effects. That is, since the rail receiving member (1) has a height corresponding to the thickness of the surface finishing mortar layer (B) formed on the floor slab (A), the mortar layer (B) is the floor slab. (A) The coating is easily applied according to the upper surface (4c) of the receiving member (1) placed on (A), and is equivalent to the thickness of the floor finishing material (C) from the upper surface of the rail like the conventional product. This frees you from the troublesome work of having to accurately form a lower level. Therefore, anyone can easily
Moreover, the mortar layer (B) having a predetermined thickness can be accurately formed.
Further, the receiving member (1) has an upper end by a pair of elastic blocking projections (4b) (4b) facing each other through a rupturable thin portion (4a) or a cut (4d) in an intermediate portion in the width direction. Has a closed rail leg fitting space (5), the work can be carried out with peace of mind without the risk of accidentally mixing mortar into the space (5). The groove type rail (2) has the receiving member (1) after the mortar layer (B) is formed.
Since it is attached to the rail (2), there is no fear that mortar will adhere to the surface of the rail (2) and the surface finish will deteriorate. Further, since the rail (2) has a mounting leg portion (7) forcibly press-fitted into the space portion (5) on the lower surface of the main body portion (6), the rail receiving member (1). Assembling to the above, the mounting leg (7) is simply broken by breaking the thin portion (4a) or the cut (4d) is opened to forcibly open the elastic blocking protrusions (4b) (4b). On the other hand, it can be easily performed only by press-fitting into the space (5). Since the main body portion (6) has a thickness corresponding to the thickness of the floor finish material (C), the floor finish material placed on the mortar layer (B) formed as described above. There is no step difference with (C). As described above, according to this door rail, the laying work can be performed easily and accurately.

Further, since the rail receiving member (1) is made of synthetic resin, the function of absorbing the vibration of the groove type rail (2) by the receiving member (1) is exhibited, and the sound absorbing effect is excellent. Will be things.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a construction state of an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state where a rail is being attached.

FIG. 3 is a cross-sectional view of a rail receiving member of a door roller rail according to another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Rail receiving member 2 ... Groove type rail 4a ... Thin part 4b ... Elastic closing protrusion 4c ... Upper surface 4d ... Notch 5 ... Rail leg fitting space 6 ... Main part 6a ... Door car guide groove 7 ... Mounting leg A … Floor slab B… Mortar layer C… Floor finishing material

Claims (2)

[Claims] 1. A rail receiving member (1) made of synthetic resin, which is embedded in a surface mortar layer (B) on a floor slab (A) with its upper surface (4c) flush, and integrally with this. The grooved rail (2) to be assembled, the receiving member (1)
Is a rail leg fitting whose upper end is closed by a pair of elastic closing projections (4b) (4b) facing each other through a breakable thin portion (4a) or a cut (4d) in the middle portion in the width direction. The rail (2) has a thickness corresponding to the thickness of the floor finishing material (C), while having a combined space portion (5), and a main body portion (a door guide groove (6a) is formed on the upper surface thereof ( A door roller rail having a mounting leg portion (7) forcibly press-fitted and fixed to the space portion (5) on the lower surface of (6). 2. The door roller rail according to claim 1, wherein the rail receiving member (1) has a height corresponding to the thickness of the surface finish mortar layer (B).