JP2847282B2 - Method of manufacturing non-slip handrail for construction - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to architectural stairs, corridors,
Manufacture of non-slip handrails for construction in which a non-slip uneven coating is formed on a part of the outer periphery of a metal or synthetic resin hollow member installed in other places, and a uniform coating layer is formed on the entire outer periphery. It is about the method.

[0002]

2. Description of the Related Art Conventionally, handrails used for structures such as stairs and corridors for buildings of this type are made of wood in a circular shape in the longitudinal direction, a metal pipe directly used, or a metal pipe. At present, it is generally used to use a synthetic resin fitted on the outer periphery as a handrail.

[0003]

[0005] Of the above-mentioned prior arts which use wood in the former, the strength is generally weak and the production is very troublesome.
In addition, there is a problem that mold and the like easily occur. Further, the latter, in which the metal pipe or the outer periphery is coated with a synthetic resin, has a drawback that it is very slippery, and there is a problem that injuries, cuts and the like occur when hit. The present invention has been made in view of such conventional problems, and a main object thereof is to provide a portion of the outer periphery of a hollow hollow member made of a hard synthetic resin or metal running at the center. The uneven surface between the thick protrusion and the thin concave arc is formed at a fixed or unspecified interval by a lifting shutter mold by the variable drive device, and the slip-proof part of the handrail is reliably formed, and the uneven surface of the uneven surface is formed. An object of the present invention is to provide a method for manufacturing a handrail having a beautiful appearance by applying a synthetic resin coating layer on the outer periphery.

[0004]

In order to achieve the above object, in a method for manufacturing a non-slip handrail according to the present invention, a running hollow member made of a hard synthetic resin or metal is passed through a mold die. Then, the synthetic resin from the first extruder is used to form a concave / convex portion of a thick protrusion and a thin concave arc portion alternately and continuously on a part of the outer periphery by a lift shutter mold by a variable driving device. A uniform coating layer is applied to the entire surface of the formed uneven portion and the other outer periphery of the synthetic resin. Thereafter, it is solidified by a cooling water tank, and a non-slip handrail is manufactured by a fixed-size cutting machine. Further, the interval between the thick protrusion and the thin concave arc provided on the handrail main body may be alternated, or an unspecified interval may be set. Further, an antibacterial agent for preventing generation of mold or the like is added to the inside of the synthetic resin coated on the entire outer periphery of the handrail body. Further, an adhesive is applied to the outer periphery of the hollow member inside the handrail main body in order to improve the adhesion.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The operation of the method of manufacturing a non-slip handrail according to the present invention will be described below. As shown in FIG. 1, a hollow member (9) made of various running materials is formed by a mold die as shown in FIG. While passing through the inside of (5), the amount of material supplied is adjusted by a vertically movable shutter die (6) from a variable driving device (8) from below. FIG. 3 (a) of the hollow member (9)
In the embodiment shown in the drawings, the thick protrusion (10) shown in FIG. 3 (b) and the thin concave arc (11) shown in FIG. 3 (c) are formed by raising and lowering the shutter from below. The uneven surface is provided alternately at a part of the hollow member (9), or an unspecified interval portion (13) shown in FIG. 5 is provided at a predetermined position. Thereafter, as shown in FIG.
2) is to be adhered. Further, an antibacterial agent for preventing the generation of mold is added to the inside of the synthetic resin used for the coating layer (12) on the entire outer periphery of the handrail. Further, an adhesive is applied to the outer periphery of the hollow member (9) in advance, and then the synthetic resin coating layer (1) is applied.
By attaching 2), the hollow member is firmly adhered to the outer periphery of the hollow member. Thereafter, it is cooled in a cooling water tank (16), cut through a drawer (17) and cut by a fixed-length cutting machine (18) to manufacture a non-slip handrail.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a handrail according to an embodiment of the present invention; FIG. A hollow member (9) made of various metals is passed through the inside of the die (5), from below the die (5) through the metal flow pipe (19) to the first extruder. By the lifting / lowering action of the lifting / lowering shutter mold (6) located at the end of the lifting / lowering rod (7) that is interlocked with the variable driving device (8) on the joint surface, the hollow member (9) is partially moved in the longitudinal direction. As a result, the thick projections (10) and the thin concave arcs (11) are formed alternately and continuously in an uneven shape. After that, the second extruder (3) is made of a synthetic resin having the same effect as the first extruder (2) from the metal flow pipe (19) connected to the tip end of the die (5). A uniform coating layer (1) is formed on the entire portion of the hollow member (9) where the thick protrusion (10) and the thin concave arc (11) are formed.
2) is applied to form the handrail (1).

[0007] The handrail (1) then moves forward and passes through the cooling water tank (16), and then is cut into a predetermined size by a fixed-length cutting machine (18) through a drawer (17) to prevent slipping. It manufactures handrails. In addition, as synthetic resin of the constituent material of the first extrusion molding machine (2) and the second extrusion molding machine (3), various materials such as olefin-based synthetic resin, vinyl chloride resin, polystyrene-based synthetic resin, and nylon-based synthetic resin are used. Is used.

FIG. 5 shows a handrail (1) according to the first aspect of the present invention. The handrail (1) includes a thick protrusion (10) and a thin concave arc (11) provided on a part of the outer periphery. This shows an embodiment in which a partly unspecified interval portion (13) is formed at an alternate interval and a predetermined interval is provided in the middle thereof. A coating layer (1) covering the entire outer periphery of the handrail (1) described in claim 1 is also provided.
An antibacterial agent for preventing the generation of mold is added to and mixed with the synthetic resin of 2). Further, by applying an adhesive in advance to the outer periphery of the hollow member (9) of the handrail body (1), the adhesion between the metal and the synthetic resin is improved. Further, a metal pipe (14) may be inserted into the hollow member (9) of the handrail (1) for reinforcement as shown in FIG.

In the embodiment shown in FIG. 6, an oval hollow member (21) is used as a hollow member at the center of a handrail (1), and a thick protrusion (10) and a thin concave arc are formed on a part of the outer periphery. (11) is formed in the longitudinal direction, and the coating layer (12) is applied over the entire outer periphery. In the embodiment of FIG. 7, the hollow member of the handrail body (1) uses a rectangular hollow member (22), and a thick protrusion (10) and a thin concave arc (11) are formed on the outer periphery in the longitudinal direction. The coating layer (12) is formed alternately and applied to the entire outer periphery.

FIG. 8 shows a conventional non-slip handrail, in which an outer peripheral surface of a hollow member (24) is coated with a coating film (25) of an elastomer resin, and a part of the outer periphery is provided. The thick protrusions (26) and the thin concave arcs (27) are alternately formed in the longitudinal direction, and the thick protrusion (26) and the thin concave arcs (2) are formed.
7) and the boundary between the step (2)
3) is formed and is very poor in appearance and unsuitable for use. Reference numeral (20) indicates each hopper provided in the first extruder (2) and the second extruder (3). The reason why the variable driving device (8) interlocking with the die (5) shown in FIG. 1 is provided below is that the lifting shutter mold (6) is operated above the variable driving device (8). As compared with the synthetic resin, the synthetic resin from the extrusion molding machine is always supplied in a constant amount and the supply amount is adjusted by the elevating shutter mold (6). Released outside. In order to prevent the released material from dropping around the die and the hollow member (9), the lift shutter die (6) is driven from below.

[0011]

According to the present invention, unlike a conventional wood or metal pipe or a metal pipe whose outer periphery is coated with a synthetic resin, a handrail can be surely gripped without slipping and a stable feeling can be obtained. It has a good feel and a very good aesthetic effect, and has a remarkably superior shape and sufficient toughness as compared with conventional wood and the like. In addition, there is an effect that generation of mold and the like can be prevented and the device can be used with security for a long period of time.

Then, the synthetic resin from the first extruder is connected to the variable driving device while passing through the inside of the die for the hard synthetic resin or metal hollow member which is continuously fed. By adjusting the supply amount by the elevating shutter mold, the thick protruding portion and the thin concave arc portion can be easily and alternately formed at predetermined intervals, and the non-slip portion of the uneven portion can be reliably formed, and the grip portion can be formed. There is also a convenient effect that the selection of a certain uneven portion and an unspecified interval portion convenient for cutting or the like can be freely determined by the supply amount. Further, the synthetic resin from the second extruder is formed with a uniform coating layer on the entire outer periphery of the thick protrusion and the thin concave arc by using the same effective synthetic resin as the first extruder. This has the effect of coating the steps of the boundary formed by the thick protrusions and the thin concave arcs formed on the surface of the handrail on average to make the finish beautiful. Also,
By forming the unspecified interval at a part of the predetermined position between the thick protrusion and the thin concave arc formed on the handrail, there is an effect that the cutting position with respect to the dimension can be remarkably shaped.

The addition of an antibacterial agent for preventing the generation of mold inside the synthetic resin of the coating layer covering the entire outer periphery of the handrail makes it possible to generate mold even when used in a humid bathroom. There is an effect that the beauty can be maintained for a long time without worry. Further, by applying an adhesive in advance to the outer periphery of the hollow member of the handrail, even if the hollow member is made of metal, the synthetic resin has an effect of being sufficiently bonded and integrally formed.

[Brief description of the drawings]

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

FIG. 2 is a partially cutaway perspective view of the completed handrail of the present invention.

FIG. 3 is a longitudinal sectional view showing a manufacturing order of the present invention.

FIG. 4 is a partially cutaway perspective view showing a metal tube in the center of the present invention.

FIG. 5 is a perspective view of the handrail according to the present invention in which an unspecified interval is provided.

FIG. 6 is a sectional view of an embodiment in which the cross section of the handrail of the present invention is formed into an elliptical shape.

FIG. 7 is a cross-sectional view of an embodiment in which the cross section of the handrail of the present invention is formed into a rectangular hollow member.

FIG. 8 is a perspective view showing a state in which a boundary line is formed on the surface of a conventional non-slip handrail.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Handrail 2 1st extrusion molding machine 3 2nd extrusion molding machine 5 Die die 6 Elevating shutter die 7 Elevating rod 8 Variable drive device 9 Hollow member 10 Thick protruding part 11 Thin concave arc part 12 Coating layer 13 Unspecified interval Part 16 Cooling water tank 18 Standard-size cutting machine 19 Metal flow pipe 21 Oval hollow member 22 Square hollow member 23 Boundary line

Continuation of the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) E04F 11/18 B29C 69/00 B29D 31/00 B32B 1/08 B29L 31:10

Claims (4)

(57) [Claims] 1. A traveling hollow member (9) made of a hard synthetic resin or a metal is provided with a variable driving device in which a synthetic resin of a first extruder (2) is a variable drive device while passing through an inside of a die (5). By the raising and lowering action of the raising and lowering shutter mold (6) by (8), thick projecting portions (10) and thin concave concave portions (11) are formed alternately in a part of the longitudinal direction, and thereafter, the second extrusion molding is performed. The thick protruding part (10) and the thin concave arc (1) are made of a synthetic resin having the same effect as the first extruder (2).
1) and a uniform coating layer (12) on the entire outer periphery, and then, after passing through a mold die (5), a cooling water tank (1).
6) A method of manufacturing a non-slip handrail for construction, comprising: solidifying according to 6), and then cutting it to a required size with a fixed-size cutting machine (18) to manufacture a handrail. 2. An unspecified interval part (13) in which an alternate interval between the thick projection part (10) and the thin concave arc part (11) according to claim 1 is formed. Manufacturing method of non-slip handrail for construction. 3. A non-slip architectural construction according to claim 1, wherein an antibacterial agent for preventing the generation of mold is added to the inside of the synthetic resin of the coating layer (12) covering the entire outer periphery according to claim 1. Method of manufacturing handrails. 4. The method of manufacturing a non-slip handrail for architectural purposes according to claim 1, wherein an adhesive is applied in advance to the outer periphery of the hollow member (9).