JPH076321B2 - Method of manufacturing curved guide rail for sliding wall - Google Patents

Description

Detailed Description of the Invention

[0001]

The present invention relates to relates to a manufacturing <br/> production method of the curved guide rail of the sliding wall to be used such as indoor partitions.

[0002]

2. Description of the Related Art A curved guide rail of this type is used for a curved portion c of a guide rail b for guiding and suspending a sliding wall a as shown in FIG.

As shown in FIGS. 4 to 6, the curved guide rail has a substantially C-shaped lateral cross section. The rail flange portions d, d located at the lower stage support the runner e provided at the upper end of the sliding wall a from both sides. Further, the rail opening f formed between the rail flange portions d, d allows a hanging bolt g connecting the runner e and the sliding wall a to be loosely inserted. still,
Reference numeral h in the figure denotes a ceiling plate receiving flange portion, which is welded to the curved guide rail body.

Conventionally, such a curved guide rail is formed by casting because it has the above-mentioned substantially C-shaped cross-sectional shape and a complicated shape curved in the length direction.
Further, the rail flange portion d is formed to be thick in terms of strength.

[0005]

In the above-mentioned prior art, since there is a difference in shrinkage during cooling between the thick portion such as the rail flange portion d and the other thin portion, distortion occurs in the shape. Therefore, there is a problem that the rail flange portion d is easily deformed into a twisted or inclined shape, and the sliding wall a during sliding is vertically moved or inclined. There is also a problem that a step is likely to occur at the joint between the curved guide rail and another guide rail, and the runner e is caught and the sliding wall a does not slide smoothly.

Further, since it is difficult to form a complicated shape such as a pair of ceiling plate receiving flange portions h, h on the left and right by casting, the ceiling plate receiving flange portion h is formed separately and curved. Since it has to be welded to the lower part of the guide rail body at two places on the left and right, there is a problem that the manufacturing cost of the curved guide rail by casting is further increased.

[0007] The present invention, curved guide rail of the sliding wall which can eliminate the above problems
Those to and to provide a production method.

[0008]

To achieve the above object SUMMARY OF THE INVENTION, manufacturing method of the curved guide rail of the present invention, 2 ceiling flange and the rail flange on the upper and lower portions of the one surface protrudes to a size different magnitude Tsunojika Roll-bend one of the extruded molds in the direction in which the surface on the flange protruding side becomes the inner diameter surface, and the other in the direction in which the surface on the flange protruding side becomes the outer diameter surface. The curved inner surface and the outer peripheral surface of the curved flanges have almost the same curvature, and the ceiling flanges of these curved flanges are butt-joined with the inner peripheral surface and the outer peripheral surface of the curved flanges abutting each other. The rail opening is formed in the.

[0009]

According to the arrangement of the manufacturing method of the curved guide rail the present invention, straight-shaped extruded material ceiling flange and the rail flange on the upper and lower portions of the one side having the same cross-sectional shape protruding in a size different sizes Since the roll is bent into a predetermined curved shape, high-precision bending using the guide of the roll can accurately maintain the cross-sectional shape of the same extruded shape that is molded with high accuracy, and the flange It is possible to accurately form two types of curved die members that are curved in the opposite directions in which the forming surfaces are the inner periphery and the outer periphery, and the inner periphery surface and the outer periphery surface formed by the ceiling flange have substantially the same curvature. the ceiling flange each other of the curved type material,
By simply butt-welding the inner peripheral surface and the outer peripheral surface of them that are in contact with each other, the two curved mold members can be integrally formed in a correctly aligned state, and an accurate cross-sectional shape and dimensions can be obtained. The curved guide rails that it has can be easily manufactured with high yield.

[0010]

Embodiments of the present invention will be described with reference to FIGS. 1 and 2.

As shown in FIG. 2, the pair of left and right curved mold members 2a and 2b forming the curved guide rail 1 are formed to have a laterally symmetrical shape. The curved profile 2a on the left side of the drawing has a ceiling flange 3a facing right on the upper stage of the outer diameter side surface 2c and a rail flange 4a facing right on the lower stage. The rail flange 4a is formed such that its rightward protruding amount is smaller than the ceiling flange 3a by a dimension indicated by S in the figure. A ceiling plate receiving flange 5a is provided leftward at the lower end of the rail flange 4a extending downward. This is provided as needed.

On the other hand, the curved member 2b on the right side in the figure is provided with a ceiling flange 3b and a rail flange 4b on the inner diameter side surface 2d in a position and orientation symmetrical to the curved member 2a. Further, the ceiling plate receiving flange portion 5b is also formed by the curved member 2a on the left side.
It is provided at a position and orientation symmetrical to the ceiling plate receiving flange 5a.

The curved mold members 2a and 2b are obtained by roll-bending a straight extrusion molding material having the same cross-sectional shape.

When the roll is bent, the left curved member 2a is formed.
Is curved so that the upper and lower flange portions 3a, 4a are outward in the radial direction, in other words, the flange protruding surface of the extruded material is the outer diameter side surface. The right curved member 2b is curved so that the upper and lower flange portions 3b, 4b are inward in the radial direction, in other words, the flange protruding surface of the extruded material is the inner diameter surface. Each of the curved mold members 2a and 2b can be formed by the extrusion molding material roll-bent in the length direction while maintaining the molding accuracy of extrusion.

Further, this roll bending process is performed by each curved die member 2
The outer peripheral surface and the inner peripheral surface formed by the ceiling flanges 3a and 3b of a and 2b have substantially the same curvature.

The pair of left and right curved members 2a and 2b thus formed are abutted by the ends of the ceiling flanges 3a and 3b having substantially the same curvature, and the two are joined by welding, as shown in the figure. It is possible to obtain the curved guide rail 1 having the required cross-sectional shape and curved shape according to the present invention. A rail opening 9 is formed between the rail flanges 4a and 4b.

Reference numeral 11 in FIG. 1 indicates the curved mold members 2a, 2
It is a butt joint by the ceiling flanges 3a and 3b of b.

At the time of the above-mentioned butting, since each of the curved mold members 2a and 2b has a curved shape and the transverse cross section has a bilaterally symmetrical shape, they are placed on a flat surface, and they are put together to be substantially the same. The curved flanges 2a, 2b are butted to each other in a precise positional relationship and posture between the tips of the ceiling flanges 3a, 3b by merely bringing the tips of the ceiling flanges 3a, 3b having the curvature of 1 into contact with each other. And it is possible to easily hold the butt state. Therefore, the welding operation can be easily performed without using a special fixture or the like.

The curved guide rail 1 is fixed to a slab or a beam and is used for a curved portion c of a guide rail b for suspending a sliding wall a as shown in FIG.
The ceiling plate receiving flanges 5a and 5b provided at the lower ends of the curved members 2a and 2b support the open ends of the ceiling plate.

In this embodiment, the ceiling plate receiving flange portion 5a,
Since 5b is formed integrally with the curved guide rail 1, it can be manufactured at a low cost, as compared with the case where the cast molded one has to weld the separately formed ceiling plate receiving flange portion to the curved guide rail body. You can Also, in FIG. 1, left and right 1
Welding to join the pair of curved mold members 2a and 2b is partially performed, but if all the abutting portions of the ceiling flanges 3a and 3b are welded or sealed with a sealing material or the like, scattering occurs between the ceiling plate and the slab. The scattered light generated can be prevented from leaking into the room through the gap between the abutting portions.

FIG. 3 shows a modification of the above embodiment,
The curved guide rail 1 and the straight guide rail 6 are cut and combined. The straight guide rail 6 is formed by facing a pair of straight extruded molding materials 7 and 7 which are the materials for the curved mold materials 2a and 2b of the curved guide rail 1, and the straight extruded molding materials 7 and 7 are roll-bent. It is the same as the curved guide rail 1 except that it is not processed.

In the cutting and combining, the outer diameter side curved mold material 2b of the curved guide rail 1 and one extruded material 7 of the linear guide rail 6 are respectively cut along a combined surface shown by 8 in FIG. This deformed guide rail can be obtained by joining the parts by welding.

The present invention can be constructed in various modes other than those shown in the above embodiments. For example, the end portion of the curved guide rail may be formed in a linear shape.

[0024]

According to the method for manufacturing a curved guide rail of the present invention, a straight extruded material having the same sectional shape in which the ceiling flange and the rail flange project at different sizes at the upper and lower sides of one surface is rolled. Since it is bent into a predetermined curved shape material, the same extrusion molding material that is molded with high accuracy can be accurately maintained by the high-accuracy bending processing that uses the guide of the roll, and the flange forming surface Is the inner and outer peripheries, and the inner peripheral surface and the outer peripheral surface formed by the ceiling flange have substantially the same curvature, and it is possible to accurately form two types of curved mold members that are curved in opposite directions.
The ceiling flanges of these two types of curved profile members are butt-welded together with their inner and outer peripheral surfaces abutting against each other, but the two types of curved profile members are integrally formed in a correctly aligned state. It is possible to easily manufacture a curved guide rail having an accurate cross-sectional shape and dimensions.

[Brief description of drawings]

FIG. 1 is a perspective view of a curved guide rail showing a first embodiment of the present invention.

2 is a cross-sectional view of the curved guide rail shown in FIG.

FIG. 3 is a perspective view showing a second embodiment of the present invention.

FIG. 4 is a cross-sectional view showing a conventional curved guide rail.

5 is a partially enlarged view of the curved guide rail of FIG.

6 is a perspective view of the curved guide rail of FIG. 4 seen from below.

FIG. 7 is a perspective view showing the curved guide rail of FIG.

[Explanation of symbols]

 1 Curved guide rails 2a, 2b Curved members 3a, 3b Ceiling flanges 4a, 4b Rail flanges 9 Rail openings 11 Butt joints

Claims (1)

[Claims] 1. One of two straight extruded moldings having a ceiling flange and a rail flange projecting at different sizes on the upper and lower portions of one surface, in a direction in which the surface on the flange projecting side is the inner diameter surface, The other side is roll-bent in such a direction that the surface on the flange protruding side becomes the outer diameter surface, and the inner peripheral surface and the outer peripheral surface formed by the respective ceiling flanges are made into curved mold members with substantially the same curvature. A method for manufacturing a curved guide rail for a sliding wall, characterized in that the flanges are butt-joined in a state where the inner peripheral surface and the outer peripheral surface of the flanges are in contact with each other to form a rail opening between the rail flanges.