JP4180988B2 - Sliding member for vacuum cleaner suction tool and suction tool for vacuum cleaner using the same - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a sliding member for a vacuum cleaner suction tool using a sliding member made of a cut pile fabric that is preferably used as a vacuum cleaner suction tool, and a suction tool for a vacuum cleaner using the same . The pile fabric refers to a fabric in which loops (rings) of yarn (including thread tufts) are woven on the surface of the fabric using pile warp or weft separately from the ground yarn. In addition, a fabric portion made of ground yarn is called a backing base fabric, a yarn forming a loop is called a pile yarn, and a fabric made by cutting the loop portion into a raised (raised) state is called a cut pile fabric. As a method of weaving cut pile fabric, weaving the backing base fabric with top and bottom yarns, weaving the pile portions alternately up and down in the vertical direction, and finally cutting the space between the base fabrics to make two splits simultaneously. There is also a method of weaving.
[0002]
[Prior art]
In order to maintain a smooth sliding action between object surfaces that slide in opposition, a sliding member that is attached to one object surface and slides on the other surface is often used. A routine example is a vacuum cleaner suction tool (also referred to as a floor brush, suction nozzle surface, etc.). For example, Japanese Patent Laid-Open No. 02-295527 discloses a vacuum cleaner suction tool in which a brushed cloth made of a cut pile-like spun cloth is attached to the lower surface of a suction port in contact with the floor. The pile of the spun cloth is formed with a high density using ultrafine fibers (meaning fibers with a diameter <10 μm) whose thickness is 0.1 (unit unknown) or less, and is set to a length of 4 to 6 mm. It is said that when it comes into contact with the surface, the touch of the surface is soft and fits well, so that it acts as if the surface is wiped with a rag, and further, there is an effect of polishing the hard flat surface.
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 02-295527 [Problems to be Solved by the Invention]
By improving the sliding member for the suction tool like the invention described in the patent document ,
The vacuum cleaner suction tool has a soft feel. However, there was a strong demand for lighter and smoother operation. The present invention is to research for the purpose of responding to such a demand, as a result of repeated trial and testing, has been completed.
[0004]
[Means for Solving the Problems]
As a result of the research, as a means for solving the problem, the present application is applied to cut pile fabric.
The first aspect according to the invention and the second aspect equivalent thereto have been found. Both are surface
Is attached to one surface of an object that slides relative to each other and the other
Used for sliding members that slide on the surface. In the first aspect, polytetrafluoroethylene
Tylene (PTFE) resin fiber and nylon fiber are in the range of 1/6 to 6/1 by volume.
It consists of a cut pile fabric woven using pile yarn combined in a surrounding, and
The pile yarn is composed of a multifilament.
It is a sliding member for vacuum cleaner suction tools . Polytetrafluoroethylene that is combined with pile yarn
The single fiber diameter of the resin resin fiber is preferably in the range of 10 to 45 μm. Other than the above, for example
As a second embodiment according to the present invention , a cut pile fabric in which fluororesin fibers are mainly used in pile yarns and the single yarn diameter of the fluororesin fibers is in the range of 25 to 45 μm was examined .
In both the first and second embodiments, the fiber diameter of the pile yarn is preferably in the range of 200 to 500 μm. The pile yarn is preferably composed of multifilaments. Usually, the pile density is preferably in the range of 70,000 to 160,000 pieces / 25 mm square in terms of the number of single yarns, and the thickness of the woven fabric including the pile portion is preferably in the range of 2 to 5.5 mm .
[0005]
Also, the cut pile fabric according to the first aspect, an electrical slide the other surface which faces attached to one surface of an object relative sliding to face the surface sweep
It is suitable as a sliding member for a machine removal suction tool . As illustrated in FIG. 1 , the sliding member 1 is preferably attached to a surface 3 that is in sliding contact with the surface to be cleaned of the vacuum cleaner suction tool 2.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with specific examples. The cut pile fabric of the first aspect according to the present invention is manufactured mainly for the purpose of being used as a sliding member, and a polytetrafluoroethylene resin fiber and nylon are used as a pile yarn.
Fibers are used in combination.
[0007]
The single yarn diameter of the polytetrafluoroethylene resin fiber is recommended to be in the range of 10 to 45 μm. When the single yarn diameter is less than 10 μm, the piled yarn that rises easily tends to lie down when repeatedly pressed and pressed because the fibers are soft even after the combined yarn. In addition, when the single yarn diameter exceeds 45 μm, it is difficult to handle as a yarn.
[0008]
In the present invention, the pile yarn is made of polytetrafluoroethylene resin fiber and nylon fiber.
Are used together. Only fluororesin fibers including polytetrafluoroethylene resin fibers
The cut pile fabric made of the pile yarn has a small coefficient of friction, but the fiber is soft, so if you repeatedly slide and press, the pile yarn will gradually fall down and the performance will deteriorate and the appearance will also deteriorate. There are drawbacks. Nylon fibers are harder than fluororesin fibers and have a relatively low friction coefficient, but not as high as fluororesin fibers, so even if they are combined with fluororesin fibers and used as pile yarns, the friction coefficient of fabrics is not so great. It is possible to obtain napped recovery without increasing the size. Furthermore, in general, nylon fibers are cheaper and more cost-effective than fluororesin fibers.
[0009]
There may be multiple types of fibers to be combined with polytetrafluoroethylene resin fibers , but if there are many types of fibers to be combined, not only will the twisting process be complicated, but cutting will also take advantage of the characteristics of each. It becomes difficult to obtain a pile fabric.
[0010]
The combined yarn ratio of polytetrafluoroethylene resin fiber and nylon fiber is 1 on a volume basis.
A range of / 6 to 6/1 is preferred. When the ratio of the fluororesin fiber is larger than this, the recovery property of napping is deteriorated, and when the ratio is smaller, the friction coefficient tends to be higher.
[0011]
Next, in the cut pile fabric as the second aspect, the fluororesin fiber is mainly used for the pile yarn, and the single yarn diameter of the fluororesin fiber is in the range of 25 to 45 μm. When the single yarn diameter is less than 25 μm, since the fiber is soft, the pile yarn that rises is liable to remain lying down when repeatedly slid and pressed. Moreover, when it exceeds 45 micrometers, there exists a fault that the handling as a thread | yarn becomes difficult.
[0012]
In addition, the fiber diameter of the pile yarn is preferably in the range of 200 to 500 μm in both the first and second aspects. When the fiber diameter is 200 μm or less, the productivity at the time of weaving the pile fabric is deteriorated, and when it is 500 μm or more, the unevenness of the pile fabric becomes conspicuous. The pile yarn may be any of monofilament, multifilament, and spun yarn. However, the spun yarn tends to drop short fibers, and the monofilament has poor productivity when processed as a pile yarn. Is preferred. The density of the pile yarn is preferably in the range of 70,000 to 160,000 pieces / 25 mm square in terms of the number of single yarns. If the density is higher than this, it becomes difficult to obtain a soft feeling, and if it is less, the wear resistance is poor. The thickness of the cut pile fabric is preferably in the range of 2 to 5.5 mm. If the thickness is greater than this, the amount of air inflow varies when used in a vacuum cleaner suction tool, and if it is thin, the friction coefficient tends to increase.
[0013]
The fluorine-containing resin fiber which can be utilized as a pile yarn, usually 90% or more of repeating structural units of the polymer main chain or a fluorine atom in the side chain may fiber made up of monomers containing 1 or more. This is because a fiber composed of a monomer having a large number of fluorine atoms has better sliding properties and is preferable. However, among these fluororesins , poly-4
Fluorinated ethylene is preferred.
[0014]
The cut-pile woven fabric described above is particularly suitable as a sliding member because it has a small coefficient of friction and is excellent in recovering napping against pressure from the surface. For example, in the vacuum cleaner suction tool 2 illustrated in FIG. 1, when the suction member 4 is used as the sliding member 1 of the surface 3 that is in sliding contact with the surface to be cleaned, excellent performance is exhibited.
[0015]
【Example】
Reference example
Poly 4 with a single yarn diameter of 28.6 μm (14.8 dtex) and 90 filaments
Cut pile fabrics were woven using multifilaments of ethylene fluoride as pile yarns. The fiber diameter as a pile yarn was 270 μm. The pile density is 15
9,000 pieces / 25 mm square. For the backing fabric, we used warp, yokomo and meta-aramid spun yarn. After weaving, a shearing process was performed, and the thickness of the woven fabric including the pile portion was 3.8 mm.
[0016]
Reference comparison example
A multifilament of tetrafluoroethylene / olefin copolymer having a single yarn diameter of 16.6 μm (5.5 dtex) and 200 filaments was used as a pile yarn.
Cut-pile fabric was woven. The fiber diameter as a pile yarn was 235 μm. The pile density was 86,000 pieces / 25 mm square. For backing fabric
We also used the spun yarn of Metaaramid. After weaving, a shearing treatment was performed, and the thickness of the woven fabric including the pile portion was set to 2.2 mm.
[0017]
Example
Single yarn diameter is 28.6 μm (single yarn fineness is 14.8 dtex), number of filaments is 60
Polytetrafluoroethylene multifilament and a single yarn diameter of 33 μm (9.8
dtex) and a nylon multifilament having 48 filaments were combined at a ratio of 1/3, and a cut pile fabric was woven using as a pile yarn. The fiber diameter of the pile yarn was 320 μm. The pile density was 159,000 pieces / 25 mm square. For the backing fabric, we used warp, yokomo and meta-aramid spun yarn. After weaving, the shirring process is performed, and the thickness of the woven fabric including the pile portion is set to 3.8.
mm.
[0018]
Comparative example
Cut pile fabrics were woven using nylon multifilaments having a single yarn diameter of 20.2 μm (single yarn fineness of 7.4 dtex) and 90 filaments as pile yarns. The fiber diameter as a pile yarn was 190 μm. The pile density is 140,0
00 pieces / 25 mm square. As backing material, we used warp, yoko and meta-aramid spun yarn. After weaving, the shirring process was performed, and the thickness of the woven fabric including the pile portion was 3.8 mm.
[0019]
With respect to the above four samples, the coefficient of friction was measured in accordance with JIS K 7125 using cotton carpet as a test material and using the above four samples as a sliding piece. A 200 g load should be applied to the sliding piece, and the test speed should be close to that in actual use.
It changed from S description conditions to 6000 mm / min. For the measurement, a surface property measuring device Tribogear TYPE: HEIDON-14DR manufactured by Shinto Scientific Co., Ltd. was used. Table 1 shows the measurement results of the respective static friction coefficient and dynamic friction coefficient. From these,
Example as compared with the comparative example static friction coefficient, dynamic friction coefficient are both low, it was found that needed during the time or operation starts operating force is small.
[0020]
Furthermore, for the above four samples, a carpet was used as a test material, and each was attached to a vacuum cleaner suction tool, and the state of the pile immediately after 10,000 reciprocations and the state of the pile after 5 minutes were observed. The vacuum cleaner suction tool had a size of 250 mm × 100 mm, and two pieces of cut pile fabric of 20 mm × 25 mm were attached to the lower part, and were attached to the vicinity of the center. The reciprocating distance was 500 mm, and a load of 500 g was applied. The observation results are shown in Table 2. It was found that the examples and reference examples were better than the conventional reference reference example 1 and inferior to the comparative example .
[0021]
[Table 1]
[0022]
[Table 2]
[0023]
【The invention's effect】
The cut-pile fabric used for the sliding member for the vacuum cleaner suction tool according to the present invention is formed by combining polytetrafluoroethylene resin fiber and nylon fiber with a pile yarn.
As shown in FIG. 1 , not only the friction coefficient of the pile yarn surface is small, but also the so-called pile yarn's waist is strong and difficult to fall down, so that the sliding property of the pile surface is repeatedly used .
Such a vacuum cleaner suction tool 2 is preferably attached to the surface 3 that is in sliding contact with the surface to be cleaned. By using the vacuum cleaner suction tool according to the present invention, it is easy to use the vacuum cleaner. Specifically, it is possible to lightly move the suction port 4 and particularly reduce the operating force at the initial stage of operation.
[Brief description of the drawings]
[Fig. 1] Perspective view of sliding surface of vacuum cleaner suction tool [Explanation of symbols]
1: Sliding member according to the present invention 2: Vacuum cleaner suction tool 3: Surface in sliding contact with the surface to be cleaned 4: Suction port

Claims (6)

A sliding member that is attached to and faces one surface of an object that slides relative to each other and that slides on the other surface , comprising polytetrafluoroethylene (PTFE) tree
A pile in which fat fibers and nylon fibers are combined in a volume range of 1/6 to 6/1
It consists of a cut pile fabric woven using yarn, and the pile yarn is
A sliding member for a vacuum cleaner suction tool , characterized in that the sliding member is made of a filament . The single yarn diameter of the polytetrafluoroethylene resin fiber combined with the pile yarn is 10 to 45
The sliding for a vacuum cleaner suction tool according to claim 1 , characterized in that it is in the range of μm.
Member . The sliding member for a vacuum cleaner suction tool according to claim 1 or 2, wherein a fiber diameter of the pile yarn is in a range of 200 to 500 µm. The pile density is in the range of 70,000 to 160,000 pieces / 25 mm square in terms of the number of single yarns .
Sliding member . The thickness of the fabric including the pile portion is in the range of 2 to 5.5 mm.
The sliding member for vacuum cleaner suction tools in any one of Claims 1-4 . The sliding member (1) for a vacuum cleaner suction tool according to any one of claims 1 to 5 , is attached to a surface (3) that is in sliding contact with the surface to be cleaned of the vacuum cleaner suction tool (2). Vacuum cleaner suction tool characterized by