JPH0363023A - Shoe wiping device - Google Patents

Abstract

PURPOSE:To enable a dirty shoe wiping mat to be used repeatedly and regeneratingly by arranging a pair of front and rear feed rolls with the endless shoe-wiping mat bridged to be turned between the upper and lower sections of a floor surface, and a washing solution tank for dipping the shoe wiping mat fed under the floor surface, in washing solution. CONSTITUTION:In a housing 7, a pair of feed rolls 10a, 10b are arranged along the lower sections of respective slits 9a, 9b, and between both the rolls, an endless shoe-wiping mat 11 formed with the pressure-sensitive tacky rubber G of urethane system for enabling dust or dirt bonded on a surface, to be easily washed off just by washing with water, is bridged to be turned. Besides, a motor 12 for driving the feed roll 10a rotationally in the direction for feeding the shoe wiping mat 11 to the upper section of a floor surface 8, a washing solution tank 13 for dipping the shoe wiping mat 11 moved from the feed roll 10b and fed to the lower section of the floor surface 8, into washing solution, and a dryer 14 for vaporizing the washing solution attached to the surface of the shoe wiping mat 11 passed through the washing solution tank 13 and washed off the dust or dirt and recovering the bonding force of the pressure- sensitive tacky rubber G, are arranged.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a shoe-wiping device that is installed at an entrance or a room and is used to wipe off dirt and grime adhering to footwear and the like.

[Conventional technology]

Shoe-wiping mats placed in entrances and rooms are generally cloth mats made of chemical fibers impregnated with chemicals that absorb dirt from shoes.

In addition, shoe-wiping mats placed at the entrance of clean rooms where dust is not allowed to enter are covered with multiple layers of paper sheets coated with adhesive on the surface, and the dirty paper sheets are peeled off in order from the top. There is a sticky mat.

[Problem to be solved by the invention]

However, this adhesive mat has the disadvantage that it is very uneconomical and expensive because the dirty paper sheet is peeled off and discarded.

In addition, the thickness of the entire adhesive mat differs before and after each paper sheet is peeled off, creating a step at the entrance to the clean room, which can cause people walking in and out of the clean room to trip over it, and it is difficult to transport various materials. There was a problem in that it obstructed the movement of handcarts.

In addition, the adhesive applied to the Gion sheet is based on polymers such as natural rubber, polychloroprene, and polyisobutylene.
Because it is made by adding a plasticizer as a softener and a tackifier such as rosin, terpene resin, or coumaron indene resin, it has poor stability over time, and can be used at the bottom of M products or in push carts during high temperatures such as summer. A serious drawback was that the wheels of the machine got sticky and were carried into the clean room.

Therefore, the present invention allows dirty shoe-wiping mats to be recycled and used over and over again, prevents steps from forming at the entrance of the clean room where the mat is placed, and further,
The technical challenge is to prevent adhesive from being brought into the clean room.

[Means to solve the problem]

In order to solve this problem, the present invention has developed a pair of front and rear feed rolls in which an endless shoe-wiping mat made of urethane-based pressure-sensitive adhesive rubber is hung over the top and bottom of the floor, and To provide a shoe-wiping device equipped with a cleaning liquid tank for immersing a shoe-wiping mat fed into a cleaning liquid in a cleaning liquid tank.

[Effect]

According to the present invention, when a shoe-wiping mat protruding above the floor surface is stepped on with footwear, dirt and dirt adhering to the footwear adhere to the surface of the shoe-wiping mat made of urethane-based pressure-sensitive adhesive rubber. completely wiped off.

When a large amount of dust and dirt adheres to the surface of the shoe-wiping mat, and the adhesive force of the pressure-sensitive adhesive rubber that damages the mat decreases, the part that was above the floor surface is removed by the feed roll. The area is soaked in a cleaning solution to wash away dirt and grime, and at the same time, the area where the pressure-sensitive adhesive rubber has regained its adhesive strength is sent out onto the floor again.

Therefore, the shoe-wiping mat can be recycled and used many times, making it very economical.

In addition, shoe-wiping mats made of urethane-based pressure-sensitive adhesive rubber do not create steps on the floor like traditional adhesive mats.
There is no problem of the adhesive getting sticky on footwear or the like and being carried indoors.

〔Example〕

Embodiments of the present invention will be specifically described below based on the drawings.

FIG. 1 is a cross-sectional side view of a shoe cleaning device according to the present invention, and FIG. 2 is a perspective view showing its installed state.

The shoe-wiping device 1 shown in this example is located in front of an automatic door 4 provided at an entrance 3 of a clean room 2, and is installed in a pit 6 recessed in the floor 5 of a building.

In this device engineer, the top plate of the housing 7, which is removably fitted into the bit 6, forms a floor surface 8 that extends at approximately the same height as the floor surface 5 of the building. - A pair of parallel sulins (9a, 9b) are formed which are lined up front and back toward the entrance 3 of the room 2.

Each slit 9a is provided in the housing 7.

Along the lower part of 9b, a pair of feed rolls 10a, 10b
Between these rolls 10a and 10b is an endless shoe-wiping mat 11 made of urethane-based pressure-sensitive adhesive rubber G that can easily remove dirt and grime adhered to the surface by simply washing with water. is being passed around.

Note that this shoe-wiping mat 11 has a slit 9a.

It extends above and below the floor surface 8 so as to move forward and backward on the floor surface 8 through 9b.

Inside the housing 7, there is also a motor 12 that rotates the feed roll 10a in a direction to feed the shoe-wiping mat 11 onto the floor surface 8, and a motor 12 that rotates the feed roll 10a in a direction to send out the shoe-wiping mat 11 onto the floor surface 8. A cleaning liquid tank 13 in which the wiping mat 11 is immersed in the cleaning liquid, and a cleaning liquid that passes through the cleaning liquid tank 13 and adheres to the surface of the shoe wiping mat 11 from which dust and dirt has been washed off are evaporated to increase the adhesive strength of the pressure-sensitive adhesive rubber G. A dryer 14 for recovery is installed.

In addition, the inside of the cleaning liquid tank 13 is partitioned into front and rear sections with a filter or strainer 15 to form a front tank 13a and a rear tank 13b, and the cleaning liquid tank 13 has a front tank 13a and a back tank 13b. Guide rolls 16a~ for guiding the mat 11 into each tank 13a, 13b
1.6d, a brush roll 17 that slides against the surface of the shoe-wiping mat 11 soaked in the cleaning liquid in the front tank 13a and scrapes off dust and dirt adhered to the surface, and a brush roll 17 that moves from the front tank 13a to the rear tank 13b. A wiper 18.18 scrapes off the dirt adhering to the shoe-wiping mat 11 along with the cleaning liquid into the front tank 13a, and a wiper 19 scrapes off the cleaning liquid adhering to the shoe-wiping mat ■1 taken out from the rear tank 13b.
．． 19 are provided.

In addition, the shoe-wiping mat 11 has pressure-sensitive adhesive rubber G on the back side,
A reinforcing belt 20 made of hard rubber, metal, plastic, or various fibers is layered to reinforce the strength and prevent elongation.

Further, the motor 12 is operated at a constant rate until the dirty part of the shoe-wiping mat 11 protruding above the floor surface 8 is sent under the floor surface 8 by a switch 21 provided on the side wall of the clean room 2. Hours of operation.

Further, the upper plate portion of the housing 7 is provided with an inspection M22 that closes the upper surface of the pre-stage tank 13a.

Then, the shoe-wiping device 1, together with its housing 7, is fitted and installed in a pit 6 recessed in the floor surface 5 of the building,
The inspection M22 provided on the upper plate portion of the housing 7 is opened and the cleaning liquid tank 13 is filled with a cleaning liquid such as water, alcoholic water, or a detergent chemical solution.

In this state, the shoe-wiping mat 11 appearing on the floor surface 8 adheres dirt and dirt adhering to the footwear of people entering and exiting the clean room 2, the wheels of handcarts, etc. to the urethane-based pressure-sensitive adhesive rubber G. The cleaning room 2 is completely wiped off to ensure that the dust and dirt are prevented from entering the clean room 2.

When a large amount of dust and dirt adheres to the surface of the pressure-sensitive adhesive rubber G and its adhesive strength decreases, the motor 12 is activated by operating the switch 21, and the feed roll 10a driven by the motor 12 is activated. The feed roll 10b, which is driven by the feed roll 10b, is rotated for a certain period of time, and the part of the shoe-wiping mat 11 to which dust and dirt has adhered is sent into the cleaning liquid tank 13 provided under the floor surface 8 and immersed in the cleaning liquid. The part of the shoe-wiping mat 11 from which dust and dirt have been removed after passing through the cleaning liquid tank 13 is delivered onto the floor surface 8.

At this time, the shoe-wiping mat 11 sent into the cleaning liquid tank 13 is first immersed in the cleaning liquid in the pre-stage tank 13a.
Dust and dirt adhering to the surface are effectively washed off by the brush roll 17, and then immersed in a clean cleaning solution in the downstream tank 13b and rinsed, drained by wipers 19 and 19, and then dried by the dryer 14. The water is completely evaporated by hot or cold air blown from the pressure-sensitive adhesive rubber G, and the adhesive strength of the pressure-sensitive adhesive rubber G is restored.

Then, the shoe-wiping mat 11 whose adhesive force of the pressure-sensitive adhesive rubber G has been restored is sent out onto the floor surface 8 from below the floor surface 8.

In this way, the shoe-wiping mat 11 can be recycled and reused many times, which is very economical.

In addition, the urethane-based pressure-sensitive adhesive rubber G used in the shoe-wiping mat 11 does not cause any problems such as the adhesive getting sticky on footwear or the like and being carried indoors, unlike paper adhesive mats.

In addition, in the embodiment, the feed rolls 10a and 10b are driven by the motor 12, but each roll 10a.

10b may be driven manually.

Further, the part of the shoe-wiping mat 11 interposed between the guide roll 16d and the feeding roll 10a is stretched in a zigzag shape with a large number of guide rolls, and the length of that part is adjusted to the floor surface 8.
If the length is the same as or longer than the part that appears above, the part that has passed through the cleaning liquid tank 13 does not have to be immediately dried and sent directly onto the floor B, and the cleaning liquid tank 1
The dryer 14 is not necessarily necessary since it is possible to secure time for natural drying after passing through the dryer 3 and before sending it out onto the floor 8.

〔Effect of the invention〕

As described above, according to the present invention, the shoe-wiping mat placed in a clean room where dust is not allowed to enter can be reused over and over again, making it extremely economical. This has an excellent effect.

Further, there is a very excellent effect that there is no difference in level at the entrance of the clean room, and at the same time, no adhesive is brought into the clean room.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional side view of a shoe cleaning device according to the present invention, and FIG. 2 is a perspective view showing its installed state. Explanation of symbols 1--Shoe wiping device, 10a, 10b 8--Floor surface, work 1--Shoe wiping mat, G--Urethane pressure sensitive adhesive rubber, 13-Washing liquid tank. - feed roll,

Claims (1)

[Claims] A pair of front and rear feed rolls (10a) and (10b) on which an endless shoe-wiping mat (11) made of urethane-based pressure-sensitive adhesive rubber (G) is wrapped around the top and bottom of the floor (8);
The floor surface (
8) A shoe-wiping device characterized by comprising a cleaning liquid tank (13) for immersing the shoe-wiping mat (11) sent below in cleaning liquid.