JPH0721833Y2 - Lower rail device for sliding doors - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lower rail device for a sliding door gate, and more specifically, a structure of a lower rail for guiding a door roller provided at a lower portion of a large sliding door door provided at a doorway of a school or a factory. Regarding

[0002]

2. Description of the Related Art Conventionally, at entrances and exits of schools, factories, etc.
A large sliding door gate 1 as shown in FIG. 9 is often used. Such a large sliding door 1 is usually formed so that door rollers 3 and 3 provided at the lower portion of the door body 2 are guided by the lower rails 4 to open and close.

As shown in FIGS. 10 and 11, the conventional lower rail 4 has a steel flat bar 5 at a portion where a gate is installed.
There are often used the one in which the vertical axis is embedded or the one in which the angle steel 6 is embedded so that the corners thereof project.

[0004]

However, since the tops of these lower rails 4 usually project from the traffic surface A, there is a risk that they will trip over and fall over when the vehicle is passing, and the lower rails 4 and It was an obstacle to the passage of vehicles.

For this reason, as shown in FIG.
It is also practiced to form a groove B in the concrete and to embed the lower rail 4 in the groove B so that the top of the rail is substantially flush with the passing surface A. However, in the case of such a structure of the lower rail, water may accumulate in the groove B, and if dust, sand, etc. accumulate, they enter the fine irregularities of the concrete surface, and further rust occurs. It had a drawback that it looked bad. Furthermore, in a severe case, there was a problem that water algae was generated in the groove B.

Therefore, the present invention is to provide a lower rail device for sliding door gates which is not obstructive to traffic, has an excellent appearance, is easy to clean dust and sand, and has a drainage function. Has an aim.

[0007]

In order to achieve the above object, a lower rail device for a sliding door according to the present invention has substantially the same height as the above-mentioned ridges on both sides of the ridges serving as rails through concave grooves. The metal rail material provided with a protruding edge portion is embedded so that the upper surface of the ridge portion is approximately at the same height as the passage surface of the gate installation portion. A drainage box having a drainage port communicating with the groove is connected to the end of the drainage box, and the drainage box is connected to a drainage facility.

[0008]

[Operation] In the lower rail device with the above configuration, the upper surface of the ridge that is the rail provided at the center of the rail material in the longitudinal direction is located at approximately the same height as the traffic surface, so it does not interfere with traffic. Moreover, since the rail material is formed by integrally molding metal, even if dust or sand accumulates in the recessed grooves provided on both sides of the rail ridge, it can be easily cleaned, especially stainless steel. By forming the rail material with, there is almost no rust, and a beautiful appearance can be maintained for many years. Further, by connecting a drainage box to the end of the rail material, water accumulated in the groove can be drained.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will now be described in more detail based on an embodiment shown in the drawings. 1 is a perspective view of a main part of a large-sized sliding door gate with two rails using the lower rail device of the present invention, FIG. 2 is a sectional view of the lower rail, FIG. 3 is a sectional view of a rail material, and FIG. 4 is a sectional view of the lower rail. A cross-sectional view in which a drainage box is connected to the end,
5 is a sectional view taken along line VV of FIG. 4, and FIG. 6 is a sectional view taken along line VI-VI of FIG.

The rail member 20 for guiding the door roller 11 of the large sliding door 10 has a ridge portion 21 at the center in the longitudinal direction, concave grooves 22 and 22 on both sides of the ridge portion, and ridge portions 23 on both sides in the longitudinal direction. , 23, and is integrally formed by roll-forming or pultruding stainless steel.

The protruding portion 21 functions as a rail for guiding the door roller 11, and the top surface 21a thereof and the top surfaces 23a of the protruding edges 23, 23 are formed at substantially the same height. . Further, a groove portion 24 for inserting the reinforcing rectangular rod 30 is provided on the back surface of the protruding portion 21, and the outer lower end portions of the projecting edge portions 23, 23 have inward projecting edges 25.
25 are provided. The projecting sides 25, 25 are integrated with the concrete to be placed so that the rail 20 is prevented from being lifted up by the passage of, for example, an automobile.

In the rail member 20, the rectangular rod 30 is inserted into the groove 24 on the rear surface of the protrusion 21 to form the top surface 21a of the protrusion 21.
And the top surface 23a of the projecting edge portions 23, 23 is a large sliding door gate 10.
It is constructed in a state in which most of it is buried so that it is substantially flush with the traffic surface G on which the is installed.

In this way, the top surface 21a of the ridge portion 21 serving as a rail and the top surfaces 23a of the protruding edge portions 23, 23 on both sides are
By making it substantially flush with the traffic surface G, there is no risk of tripping during walking, and there is no obstacle to the traffic of small vehicles such as bicycles, wheelchairs, baby carriages, etc., and safety can be improved.

Further, the concave groove portions 22, 22 on both sides of the protrusion 21 are provided.
Since it is made of stainless steel, accumulated water, dust, sand, etc. can be easily discharged, and since dust, sand, etc. do not adhere to the surface, it is made of stainless steel, so rust of There is almost no occurrence, and it can maintain a beautiful appearance for many years. Moreover, the linearity can be improved as compared with the conventional lower rail using a rectangular rod or the like.

In addition, a groove 24 is provided on the back surface of the protrusion 21 serving as a rail, and a reinforcing member such as a rectangular rod 30 is attached to the groove 24, whereby the strength of the rail portion can be greatly improved. it can.

Further, as shown in FIGS. 4 to 6, by providing a drainage box 40 at one end of the rail member 20,
The water accumulated in the groove portion 22 can be naturally drained. The drainage box 40 has a drainage port 41, 4 having an opening communicating with each of the recessed groove portions 22, 22 in a shape that allows the two rail members 20 to be inserted into one side upper part of the box body.
1 is provided with a drain pipe 42 at the bottom, and is formed of a stainless steel plate or the like like the rail member 20. Further, the drainage pipe 42 is connected to a drainage facility such as a drainage ditch via an appropriate connection pipe 43.

As described above, by combining the rail member 20 having the above-described configuration with the drainage box 40 having the above-described configuration, the concave groove portion 2 is formed.
Rainwater and the like in 2 is naturally drained, and dust, sand, etc. accumulated in the concave groove portion 22 can be easily cleaned.

The shape of the rail material in the lower rail device of the present invention is not limited to the shape shown in the above embodiment, but may be formed in an appropriate cross-sectional shape depending on the required strength and manufacturability. Further, the reinforcing member such as a rectangular rod provided on the back surface of the rail material as necessary is preferably provided over the entire length of the rail material, but a plurality of reinforcing members may be provided at appropriate intervals. It is also possible to attach a construction anchor between the protrusions provided at the outer lower end of the edge portion.

FIG. 7 is a cross-sectional view of a structure similar to that of FIG. 2 according to another embodiment of the present invention. This rail material 50 is
The central portion in the longitudinal direction is provided with a chevron-shaped ridge portion 51, and concave groove portions 52, 52 are provided on both sides of the ridge portion. Further, projecting edge portions 53, 53 are formed on both sides in the longitudinal direction, and the whole is integrally formed by roll-forming or pultruding stainless steel.

The protruding portion 51 functions as a rail for guiding the door roller as in the above embodiment, and the top surface 51a thereof and the top surfaces 53a of the protruding edges 53, 53 have substantially the same height. Is formed in. Also, the above-mentioned Yamagata ridge 21
An angle member 60 for reinforcement is welded to the back surface of the. Thus formed. According to the rail material 50, it becomes possible to slide the door roller of the gate corresponding to the mountain-shaped protrusion 51. The rest of the configuration and operation are the same as those in the above-mentioned embodiment, and the explanation thereof is omitted. The connection mode to the drain valve 40 is as shown in FIG. 8 and is the same as that of FIG.

As described above, according to the rail device of the present invention, the rail member is provided with the projecting edge portions on both sides of the projecting ridge portion which is the rail through the concave groove portions, and the rail upper surface is substantially a passage surface. Since the rails are buried so as to be one, the rails do not project from the passage surface, do not cause trips or falls, and do not interfere with the passage of vehicles. In addition, since the rail material is integrally formed of metal, particularly stainless steel, dust and sand in the groove can be easily cleaned, and a beautiful appearance can be maintained for a long period of time. Furthermore, a drainage box can be connected to the end of the rail material so that the water in the recessed groove can be drained through the drainage box, rainwater does not collect, and water cleaning is easy.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of a large sliding door gate using a lower rail device of the present invention.

FIG. 2 is a sectional view of a lower rail.

FIG. 3 is a cross-sectional view of a rail material.

FIG. 4 is a cross-sectional view of an end portion of a lower rail.

5 is a sectional view taken along line VV of FIG.

6 is a cross-sectional view taken along the line VI-VI of FIG.

FIG. 7 is a cross-sectional view of a structure similar to that of FIG. 2 according to another embodiment of the present invention.

FIG. 8 is a sectional view similar to FIG. 5 in the other embodiment.

FIG. 9 is a front view showing an example of a large sliding door.

FIG. 10 is a cross-sectional view of a conventional lower rail using a rectangular rod.

FIG. 11 is a cross-sectional view of a conventional lower rail using angle steel.

FIG. 12 is a cross-sectional view of a conventional lower rail having grooves on both sides of the rail.

[Explanation of symbols]

 10 Large Sliding Door Gate 11 Door Roller 20 Rail Material 21 Projection Part 22 Recessed Groove Section 23 Projection Edge Section 24 Groove Section 25 Collision Side 30 Flat Square Bar 40 Drain Box 41 Drain Port 42 Drain Pipe 43 Connection Pipe 50 Rail Material 51 Projection Section 52 Recessed Groove Section 53 Prong edge 60 Angle material G Passing surface

Claims (2)

[Scope of utility model registration request] 1. A metal rail material, in which projecting ridges serving as rails are provided with projecting edges having substantially the same height as the projecting ridges on both sides via recessed grooves, and the upper surface of the projecting ridges is a gate installation section. A lower rail device for sliding door gates, which is buried so as to be approximately the same height as the traffic surface. 2. A drainage box provided with a drainage port communicating with the groove is connected to an end of the rail member, and the drainage box is connected to a drainage facility. Lower rail device for the sliding doors of.