JPH08156064A - Manufacture of slip-resistant building handrail - Google Patents

Abstract

PURPOSE: To obtain a slip-resistant handrail by a method wherein a projected and recessed part is continuously formed crosswise to the longitudinal direction of a metal pipe serving as a building handrail main body on some part of the outer peripheral surface of a synthetic resin covering layer provided on the whole outer periphery of the metal pipe. CONSTITUTION: A synthetic resin covering layer 9 is molded on the whole outer periphery of a running metal pipe 8 with a first extruder 1. After that, during the passage of a second extruder 3, a projected and recessed coating part, which is produced out of a synthetic resin by successively forming a thick walled projected part and a thin walled recessed part crosswise to the longitudinal direction of the metal pipe of some part of the outer peripheral surface of the covering layer 9 through the ascending and descending action of the shutter ascending and descending mold of a variable driving device 6. After that, a resultant pipe is passed through a cooling water tank 13 and cut off with a standard cutter 15 in order to obtain a slip-resistant handrail.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to stairs, corridors, and
The present invention relates to a manufacturing method of a non-slip handrail for construction, characterized in that a non-slip concavo-convex film part is formed on a part of an outer peripheral surface of a handrail made of a metal pipe attached to another place.

[0002]

2. Description of the Related Art Conventionally, for handrails used for structures such as stairs and corridors of this type, wooden ones having a circular shape in the longitudinal direction are generally used, or metal rails are used. A pipe itself or a pipe whose outer periphery is fitted with a synthetic resin is used as a handrail is generally used.

[0003]

The former handrail of the conventional handrail has a problem that it is very weak in strength because of the wooden material, it takes time to manufacture, and molds easily occur. Have a point. In addition, the latter metal pipes are very slippery, and when hit, they cause injuries, cuts, and the like, which poses many problems. The present invention is to solve such a conventional problem, and its main purpose is to use a metal pipe at the center, but the metal pipe to be sent is the first one.
An adhering layer is molded on the outer periphery by a synthetic resin while passing through the mold. After that, while passing through the second mold, a concavo-convex film portion is continuously formed on a part of the outer peripheral surface of the adherend layer to form a strong and excellent anti-slip on the surface of the handrail. The present invention provides a manufacturing method of.

[0004]

In order to achieve the above object, in the method of manufacturing a non-slip handrail according to the present invention, the first metal pipe to be fed is first passed through the first die during the passage. The adhered layer is continuously molded on the entire outer circumference of the metal pipe with a synthetic resin from an extruder. After that, when passing through the second mold, a part of the outer peripheral surface is continuously moved in the longitudinal direction in order to make slippery irregularities alternately by the operation of the variable drive device to move the shutter lifting mold up and down. It is molded, passed through a cooling water tank, and then cut into a predetermined length with a cutting machine. Further, an antibacterial agent for preventing mold and the like is added to the synthetic resin used for the outer peripheral coating portion of the metal pipe and the uneven coating portion adhered to the upper portion thereof.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to the drawings. (A) shows a completed handrail main body, and various types of horizontal handrails are used to form the handrail main body (A). While passing through the metal pipe (8) of a predetermined diameter through the first first mold (2), the synthetic resin melted from the first extrusion molding machine (1) was used to cover the entire outer circumference of the metal pipe (8). The adherend layer (9) having a predetermined thickness is continuously pressure-bonded and molded in the longitudinal direction.

Thereafter, the metal pipe (8) provided with the deposition layer (9) is second extrusion molded while passing through the second mold (4) adjacent to the first mold (2). When the molten synthetic resin of the machine (3) reaches a part of the outer peripheral surface of the adherend layer (9), it is provided below the elevating rod (7) of the variable drive device (6). As a result of the raising and lowering operation of the shutter raising and lowering mold (5), the thick and thin projections (10) and the thin concave arc portions (11) in the lateral direction are alternately alternately arranged in the longitudinal direction. The uneven pattern is continuously molded.

The handrail main body (A) on which the uneven coating portion (12) is formed then advances and passes through the inside of the cooling water tank (13), and then passes through the take-up machine (14) and the fixed-length cutting machine (15). The non-slip product is manufactured by cutting it into a predetermined size. Incidentally, the uneven layer portion (12) partially adhered to the adhered layer (9)
As the constituent material of the synthetic resin, the olefin resin, vinyl chloride resin, polystyrene, nylon and the like are mainly used.

Further, the adherend (9) according to claim 1
For each of the synthetic resin for the uneven coating film portion (12), an antibacterial agent for preventing mold and the like is added and mixed inside each of the synthetic resins. Reference numeral (16) indicates each flow pipe, and (17) indicates each hopper.

[0009]

The present invention has the above-mentioned structure, and the operation state of this manufacturing method will now be described. The synthetic resin supplied from the first extrusion molding machine (1) causes the metal pipe (8) to pass through the first mold ( 2)
The coating layer (9) is deposited on the entire outer periphery while passing through
When the synthetic resin having the melting compatibility from the second extruder (3) reaches a part of the outer peripheral surface of the adherend layer (9) when passing through the second mold (4), the variable driving is performed. By the operation of the device (6), the thick protrusion (10) and the thin concave arc (11) are alternately and freely changed by the speed action of the raising and lowering of the shutter raising and lowering mold (5) of the raising and lowering rod (7). The uneven coating portion (12) is easily molded by adjusting. After that, it is cooled in a cooling water tank (13), passed through a take-up machine (14), and then manufactured by a standard length cutting machine (15) to be used as a non-slip handrail for various constructions.

[0010]

As described above, according to the present invention, a conventional metal pipe or a metal pipe coated with a synthetic resin is
Or, unlike the slip prevention of the wavy line pattern in the longitudinal direction provided on the synthetic resin adhered layer, there is a stable feeling and a good feeling that the handrail can be reliably gripped, and the effect that the appearance is remarkably excellent and the conventional Compared with wood, it has an excellent shape, is toughened, has no mold, and can be used safely for a long period of time. Then, with respect to the metal pipe which is continuously fed, a synthetic resin deposition layer is molded on the entire outer circumference by the first extrusion molding machine, and the second resin is formed by the second extrusion molding machine in the adjacent second mold. Manufacture of non-slip handrails by continuously forming a concavo-convex film part consisting of a thick protrusion and a thin concave arc part in the lateral direction with respect to the longitudinal direction by means of a Sharkoo elevating mold on a part of the outer peripheral surface of the adhered layer. It is possible to easily and continuously, and the convenient effect that the unevenness of the uneven film portion that becomes the grip can be freely selected by adjusting the ascending / descending speed of the shutter lifting die and the lateral direction with respect to a part of the longitudinal direction of the handrail. The unevenness can be accurately molded, and both the adherend layer and the uneven coating portion can be pressed comfortably so that the bonded state of both can be closely extrusion-molded. Further, the handrail main body extruded from the first mold and the second mold is continuously taken through the cooling water tank and cut by the standard length cutting machine, so that troublesome work is required in manufacturing. Instead, there is an effect that a strong and beautiful handrail can be easily and surely manufactured by using two molds. Also, by adding an antibacterial agent to prevent the generation of mold inside the synthetic resin of the adherend layer and the uneven coating, there is no fear of mold etc. even when used in a humid place, It has the effect of maintaining aesthetics throughout.

[Brief description of drawings]

FIG. 1 is a side view showing a partially omitted manufacturing method of the present invention.

FIG. 2 is an enlarged perspective view of the mold of the present invention with a part thereof cut away.

FIG. 3 is a sectional view of the metal pipe of the present invention.

FIG. 4 is a cross-sectional view of a process in which an adhesion layer is provided on the outer periphery of the metal pipe in the same manner.

FIG. 5 is a vertical sectional side view of the thick-walled protruding portion of the handrail body of the present invention.

FIG. 6 is a vertical sectional side view of the thin-walled concave arc portion of the handrail body of the present invention.

[Explanation of symbols]

 A Handrail main body 1 1st extrusion molding machine 2 1st metal mold 3 2nd extrusion molding machine 4 2nd metal mold 5 Shutter lift mold 6 Variable drive device 7 Lifting rod 8 Metal pipe 9 Adhesion layer 10 Thick protrusion 11 Thin concave arc part 12 Recessed arc coating part 13 Cooling water tank 14 Pulling machine 15 Standard length cutting machine

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[Procedure amendment]

[Submission date] March 22, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is a side view showing a partially omitted manufacturing method of the present invention.

FIG. 2 is an enlarged perspective view of the mold of the present invention with a part thereof cut away.

FIG. 3 is a sectional view of the metal pipe of the present invention.

FIG. 4 is a cross-sectional view of a process in which an adhesion layer is provided on the outer periphery of the metal pipe in the same manner.

FIG. 5 is a vertical sectional side view of the thick-walled protruding portion of the handrail body of the present invention.

FIG. 6 is a vertical sectional side view of the thin-walled concave arc portion of the handrail body of the present invention.

FIG. 7 is a partially cutaway perspective view of a conventional non-slip handrail with a boundary line appearing on the surface in the longitudinal direction.

[Explanation of Codes] A handrail book 1 first extrusion molding machine 2 first mold 3 second extrusion molding machine 4 second mold 5 shutter lifting mold 6 variable drive device 7 lifting rod 8 metal pipe 9 adhered layer 10 Thick wall protruding part 11 Thin wall concave arc part 12 Concavo-convex film part 13 Cooling water tank 14 Pulling machine 15 Standard length cutting machine

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Claims (2)

[Claims] 1. Various kinds of metal pipes (8) to be fed are first extruder (1) during the first passage through the first mold (2).
The adhered layer (9) is continuously pressure-molded on the entire outer circumference of the metal pipe (8) by using a synthetic resin of the following, and then the metal pipe (8) is secondly pressed while passing through the second mold (4). The synthetic resin of the extrusion molding machine (3) crosses a part of the outer peripheral surface of the adherend layer (9) in the longitudinal direction by the elevating action of the shutter elevating mold (5) of the variable drive device (6). Thick protrusion (1
0) and the thin-walled concave arc portion (11) are sequentially and alternately molded to form the concavo-convex film portion (12) continuously, and the synthetic resin of the first die (2) and the synthetic resin of the second die (4) are formed. Have the same effect and are strongly fused together, and then solidified by a cooling water tank (13), and then handrails are manufactured by a standard length cutting machine (15). Handrail manufacturing method. 2. An antibacterial agent for preventing the formation of mold is added to the inside of each of the synthetic resin of the synthetic resin coating layer (9) and the concavo-convex film portion (12) of claim 1. Item 1. A method for manufacturing a non-slip slide for construction according to item 1.