JP2001252225A - Guide roller for suction part in vacuum cleaner and its molding method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide both a guide roller in which outer circumferential protective film layers of good slidability are laid one on another and laminated on the outer circumference of the guide roller which lightly slides at the bottom part of the suction part of a vacuum cleaner and its molding method. SOLUTION: In the guide roller 2, a hollow cylindrical body 7 is formed inside, and an outer circumferential protective film layer 8 of a sliding synthetic resin with smaller frictional resistance than the synthetic resin of the hollow cylindrical body 7 is formed. A mixture of additives of various powders and particles of which the melt viscosity is higher than a base martial and which does not melt at the melting point of the base material is used as the component material of the outer circumferential protective film layer 8, and a large number of recessed and protruded coarse surface parts are formed on the outer circumferential surface. The guide roller 2 is integrally molded by two extrusion molding machines and one metal mold die.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outer peripheral protective film made of a synthetic resin on the outer peripheral surface of a guide roller body made of a synthetic resin, which is provided at the bottom of a suction part of a vacuum cleaner and plays a role of guiding. The present invention relates to an induction roller for a suction unit of a vacuum cleaner, in which a layer is formed and the suction unit can be moved lightly, and a method of forming the same.

[0002]

2. Description of the Related Art Conventionally, rubber or light polyvinyl chloride is used as a constituent material of an induction roller provided on the bottom surface of a suction unit of this type of vacuum cleaner. In addition, fine hair made of nylon or the like is planted on the outer periphery thereof through an adhesive agent.

[0003]

In the above-mentioned prior art induction roller, when the material of the induction roller is rubber or vinyl chloride, the friction of the contacting surface is very large, so that the rotation of the roller is remarkably deteriorated. In addition, the hair implanted on the outer surface of the roller has a functional defect that the implanted hair comes off sequentially during use. Further, rubber or vinyl chloride is very difficult to recycle, and there are problems such as deterioration of the environment due to generation of volatile gas in the adhesive used for flocking.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned drawbacks and problems, the present invention uses a synthetic resin that can recycle an induction roller. It is formed of a lubricating synthetic resin with low frictional resistance, which can be heat-sealed and laminated with the main body. Further, the outer peripheral protective film layer is compatible with the guide roller made of the slip synthetic resin in order to form a rough surface portion on the outer peripheral surface in order to reduce frictional resistance, and has a low frictional resistance. A large number of rough surfaces are formed on the outer surface by using a mixed synthetic resin in which powder and particles of a synthetic resin having a higher melt viscosity than a base material are mixed with a small base material. Further, the outer peripheral protective film layer provided with a number of uneven surface portions on the outer surface thereof by a synthetic resin having a melting point higher than that of the base material of the slip synthetic resin, and a mixed synthetic resin obtained by mixing inorganic or mineral powder particles. What you get. Then, as a method of forming the guide roller provided in the suction section, a synthetic resin of an inner hollow cylindrical body is injected into a first extruder. The second extruder has a lubricating synthetic resin having a smaller friction resistance than the synthetic resin of the cylindrical body, or the lubricating synthetic resin has compatibility with the hollow cylindrical body,
Synthetic resin in which powder or particles of a synthetic resin having a higher melt viscosity than the base material are mixed with a base material having a lower frictional resistance than the hollow cylinder, or a synthetic resin or inorganic material which does not melt at the melting point of the base material in the base material Or mineral powder,
This is a molding method in which a mixed synthetic resin in which particles are mixed is injected, and two extruders are simultaneously operated to form an induction roller with a die.

[0005]

Next, an embodiment of the present invention will be described.
The suction part (1) connected to the vacuum cleaner (11) by a hose (12) shown in FIG. 1 has a suction port (6) on a bottom surface (4) and an appropriate number of auxiliary rollers (3). (3)
Is installed. An induction roller (2) is provided with various core shafts (5) slightly in parallel with the suction port (6).

The guide roller (2) has a hollow cylindrical body (7) formed of a synthetic resin inside. On the outer peripheral surface of the hollow cylindrical body (7), an outer peripheral protective film layer (8) of a lubricating synthetic resin having smaller frictional resistance than the synthetic resin of the hollow cylindrical body (7) is integrally formed.

Next, as a constituent material of the outer peripheral protective film layer (8), a synthetic resin powder or particle additive having a higher melt viscosity than the base material based on a synthetic resin having a small frictional resistance (9) Are formed on the outer peripheral surface of the outer peripheral protective film layer (8) by using a mixed synthetic resin in which a number of uneven surface portions (10) (10) are formed.

Further, FIG. 5 shows a conventional roller body (13) in which a flocking portion (14) is planted on the outer periphery of the roller body (13) via an adhesive.

Next, FIG. 6 shows a step of forming the guide roller (2), and shows a first extruder (1).
5) The synthetic resin of the hollow cylindrical body (7) inside the guide roller (2) is injected. Next, a lubricating synthetic resin having a smaller frictional resistance than the synthetic resin of the hollow cylindrical body (7) is injected into the second extruder (16). In addition, a mixed synthetic resin obtained by mixing a synthetic resin powder and a particle additive (9) having a higher melt viscosity than the base material into a base material having a lower frictional resistance than the hollow cylindrical body (7) is injected. Further, a mixed synthetic resin obtained by mixing a synthetic resin that does not melt at the melting point of the base material and an inorganic or mineral powder or an additive (9) of particles is injected into the base material. Thereafter, the first extruder (15) and the second extruder (16) are simultaneously operated to advance inside one mold die (17) to integrate the guide roller (2) integrally. Mold into Thereafter, it is cut and completed by a fixed-size cutting machine (20) through a cooling water tank (18) and a drawer (19).

Further, as a constituent material for forming the induction roller (2), an olefin-based or styrene-based synthetic resin is used. As the lubricating synthetic resin on the outer surface of the guide roller (2), an olefin-based or styrene-based synthetic resin that is compatible with the synthetic resin of the guide roller (2) and has low frictional resistance is used.

Next, in order to form uneven surface portions (10) (10) on the outer surface in order to reduce the frictional resistance,
As a base material of a lubricating synthetic resin, a melt flow rate is 0.5 g or more / 10 minutes (ASTMD1238 190
℃) low-viscosity polyethylene. Further, as the powder (9) having higher viscosity than the base material and the additive as particles, the melt flow rate is 0.1 g or less /
Add 10 to 40% of an olefin-based high-viscosity polyethylene of 10 minutes (ASTMD1238190 ° C). In this case, when the extrusion molding temperature is 180 to 240 ° C., the low-viscosity polyethylene of the base material is completely melted and is in a fluid state, but the high-viscosity polyethylene does not fluidize but has a certain powder and particle shape. It is extruded while maintaining it, and forms a rough surface portion (10) (10) with irregularities on the surface.

Further, as a method of forming the rough surface portions (10) and (10) having an uneven shape, there is a method of forming a base material having a low frictional resistance such as a synthetic resin such as an olefin, styrene, or nylon having a low frictional resistance. Highly-synthetic powders of synthetic resins such as olefins, styrene-based, silicon-based, and fluorine-based resins,
Particles and powders of minerals such as molybdenum, particles or silica,
Even if the base material of the inorganic powder such as mica is in a molten state, the powder or the particle having a high melting point does not melt and easily forms an uneven rough surface portion.

[0013]

As described above, according to the guide roller of the present invention, the frictional resistance is large and the rotation is remarkably deteriorated like the conventional roller body made of rubber or vinyl chloride. In addition, there is an effect that the hair is smoothly rotated without hair loss as in the case where the hair is planted on the outer periphery. And the slippery synthetic resin of the outer peripheral protective film layer provided on the outer periphery of the hollow cylindrical body made of the synthetic resin of the induction roller,
Because the frictional resistance is small and the rotation of the guide roller is light, the suction part itself can be easily moved, and the cleaning is very simple. Addition of synthetic resin powder, particles with higher melting viscosity than base material, synthetic resin, inorganic and mineral powders and particles that do not melt at the melting point of base material Because of the synthetic resin of the material, a large number of uneven rough surfaces were formed on the surface, so that the frictional resistance on the outer periphery of the fusion roller was significantly reduced, and the rotation of the induction roller was light and smooth. The addition of various powders and particles to the resin has the effect that it can be used for a long period of time without being easily peeled or rubbed during rotation. In addition, depending on the degree of melting of the additive mixed, there is also an effect that various rough surfaces having a small frictional resistance can be freely selected and formed. Further, as a method of forming the guide roller body, depending on two extruders, the hollow cylindrical body and the outer peripheral protective film layer are integrally heat-fused and polymerized and laminated, and the conventional outer peripheral layer is formed. Adhesive is no longer necessary, just like planting hair
There is no generation of volatile gas and it is useful for environmental pollution, and it is surely and firmly laminated integrally by the inside of one die after extrusion. The constituent material of the induction roller of the present invention uses a recyclable olefin resin and a styrene resin.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a use state in which an induction roller according to the present invention is connected to a vacuum cleaner, with one part thereof being omitted.

FIG. 2 is a perspective view of the guide roller of the present invention.

FIG. 3 is a sectional view of the guide roller of the present invention.

FIG. 4 is a sectional view of the guide roller of the present invention.

FIG. 5 is a vertical sectional side view of a conventional roller body.

FIG. 6 is a longitudinal side view showing a forming step in which a part of the guide roller of the present invention is omitted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Suction part 2 Induction roller 3 Auxiliary roller 4 Bottom surface 5 Core shaft 6 Suction port 7 Hollow cylindrical body 8 Peripheral protective film layer 9 Additive material 10 Rough surface part 11 Vacuum cleaner 15 First extruder 16 Second extruder 17 Gold Dies 18 Cooling water tank

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Toshio Takeda 13 Kanda Konyacho, Chiyoda-ku, Tokyo Kyowa Seika Co., Ltd. (72) Inventor Masaaki Matsui 13 Kanda Konyacho, Chiyoda-ku, Tokyo Kyowa Kasei Co., Ltd. (72) Inventor Mitsuo Morizumi 261-5 Kawaato, Shirai-cho, Inba-gun, Chiba Prefecture Tokiwa Chemical Industry Co., Ltd. F-term (reference) 3B061 AA06 AA17 AA52 AD05 AD11

Claims (4)

[Claims] 1. A guide roller is provided on the bottom of a suction unit provided in a vacuum cleaner, the guide roller being provided through a core shaft slightly in parallel with a suction port, and the guide roller is provided inside. A hollow cylindrical body made of a synthetic resin is formed, and on the outer peripheral surface of the hollow cylindrical body, an outer peripheral protective film layer of a slippery synthetic resin having a smaller frictional resistance than the synthetic resin of the hollow cylindrical body is formed. Induction roller of the suction part in the vacuum cleaner. 2. The constituent material of the outer peripheral protective film layer of the lubricating synthetic resin according to claim 1, wherein a synthetic resin powder having a higher melt viscosity than a base material of a synthetic resin having low frictional resistance; 2. The induction roller for a suction unit in a vacuum cleaner according to claim 1, wherein a large number of uneven surface portions are formed on the surface by using a mixed synthetic resin in which an additive of particles is mixed. 3. A synthetic resin, inorganic material or mineral which does not melt at the melting point of the base material of a synthetic resin having a low frictional resistance as a constituent material of the outer peripheral protective film layer of the lubricating synthetic resin according to claim 1. 2. An induction roller for a suction unit in a vacuum cleaner according to claim 1, wherein a large number of uneven surface portions are formed by a mixed synthetic resin obtained by mixing powder and particle additives. 4. A synthetic resin of a hollow cylindrical body inside an induction roller mounted on a bottom surface of a suction unit provided in a vacuum cleaner is injected into a first extruder, and a second extruder has:
A slippery synthetic resin having a lower frictional resistance than the synthetic resin of the hollow cylindrical body is injected, or the slippery synthetic resin has compatibility with the hollow cylindrical body, and has a higher frictional resistance than the hollow cylindrical body. Inject a mixed resin mixed with powder or particles of a synthetic resin having a higher melt viscosity than the base material into a small base material, or further add a synthetic resin, inorganic or mineral that does not melt at the melting point of the base material to the base material. A mixed synthetic resin in which powder and particles are mixed is injected, and then the first extruder and the second extruder are simultaneously operated so that the hollow cylindrical body and the outer peripheral protective film on the outer periphery are formed inside one mold die. 4. The electric cleaning apparatus according to claim 1, wherein the layer is integrally formed, and then advanced to pass through a cooling water tank, cut through a drawer, and cut to a predetermined size by a fixed-size cutting machine. Roller in the suction section of the machine Molding method.