JP2020084727A - Upper floor indoor antifouling device used in underfloor work - Google Patents

Abstract

To provide an upper floor indoor antifouling device used in an underfloor work.SOLUTION: An upper floor indoor antifouling device 1 that prevents upper floor indoor contamination by dust when an underfloor work of a building is conducted includes an opening 4 opened to a floor surface 5 for allowing a worker 3 to go in/out underfloor, an antifouling device 2 for opening arranged so as to surround the upper part of the opening 4, a frame body 10 for opening in which the antifouling device 2 for opening is arranged on the opening peripheral floor surface 6 surrounding the periphery of the opening 4, a surrounding film 20 surrounding a space surrounded by the frame body 10 for opening so as to surround the upper part of the opening 4, and doorways 26 and 43a provided on one surface of the surrounding film 20 so as to be opened or be capable of opened, and performs an underfloor work by passing through the doorways 26 and 43a and going in/out the opening 4. The antifouling device 2 for opening is arranged on a protective member 35 and can protect a floor surface 5.SELECTED DRAWING: Figure 1

Description

The present invention relates to an on-floor indoor antifouling apparatus used in underfloor work of a building, and more specifically, the underfloor work of the present invention is a general term for underfloor investigation, pest control, cleaning work, wiring work, and various underfloor work. The present invention relates to an on-floor indoor antifouling device which prevents the inside of the above-floor room from being contaminated due to the entrance and exit of workers, dust, etc. when performing this underfloor work.

In Japanese Patent Laid-Open No. 2005-75967 (Patent Document 1), which is a conventional technique, a "termite-preventing paint and a method for controlling termites" is used as a special termite-preventing paint for protecting wooden buildings such as houses from harmful insects such as termites. The method of controlling the termite using is described. In claim 5, it is described that the special ant-preventive paint is applied by spraying from the foundation of the building to the bottom surface of the floor.

Further, Japanese Patent Laid-Open No. 2009-40710 (Patent Document 2), which is a conventional technique, describes the details of "termite control method and termite creeping-up prevention guide sheet". A sheet-like material, which is coated or kneaded with a termite repellent with low transpiration, is placed on the building inner and outer surfaces under the floor of the building, the wood surface, etc. to prevent termite creeping up due to the repellent effect, or a guide guide. As for controlling termites.

Furthermore, Japanese Patent Laid-Open No. 2000-1980 (Patent Document 3), which is a conventional technique, describes an "underfloor storage device and its installation method" that enables a floor work to proceed smoothly. That is, this installation method forms a rail on the concrete surface under the floor, slidably arranges a horizontally long rectangular parallelepiped storage box having an upper opening on the rail, and from the opening formed on the floor. The storage box is inserted and the rails are assembled and connected sequentially.

JP, 2005-75967, A JP, 2009-40710, A JP 2000-1980 A

As described above, Patent Document 1 describes a termite proofing construction method as “termite proofing paint and termite proofing construction method”. In addition, Patent Document 2 describes "termite control method and termite creeping-up prevention guide sheet".
However, in both of these patent documents, in order to carry out the method for controlling the termite under the floor and the method for controlling termites, the worker has to go under the floor and perform the work. At this time, for example, when entering or exiting below the floor through an opening on the floor of the kitchen, dust due to the work enters the floor upper room through the opening, and when the worker exits the opening, dust is introduced into the floor upper room. The situation occurs. In order to prevent this, the actual situation is that the floor antifouling device has not been developed or has not been sufficiently developed.

In addition, Patent Document 3 describes an "underfloor storage device and its installation method" that enables a floor work to proceed smoothly. Here, it is clearly stated that the storage box is inserted from the opening formed on the floor surface and sequentially assembled and connected.
However, there is a problem that is exactly the same as in Patent Documents 1 and 2, that is, dust due to work enters the floor upper chamber through the opening and pollutes the floor upper chamber where people live. In addition, in order to prevent this, the actual situation is that the floor antifouling device has not been developed or has not been sufficiently developed.

Therefore, the first object of the present invention is to remove dirt such as dust coming out of the opening of the floor when performing underfloor work such as underfloor survey, pest control, cleaning work, wiring work and various underfloor work. Provide an indoor floor antifouling device that is used for underfloor work that keeps the floor room indoors clean by blocking it and blocking dirt such as dust that is induced when an operator enters the floor room through its opening. To do.
A second object of the present invention is to arrange an antifouling device for an opening so as to surround the upper side of the opening, and to prevent the antifouling device for the opening from surrounding a floor surface surrounding the opening. An opening frame arranged above, an envelope film surrounding a space surrounded by the opening frame so as to surround the upper side of the opening, and an openable or releasable one surface of the envelope film. It is composed of the entrance and exit provided, the opening antifouling device is firmly constructed by using a sturdy opening frame, and it has durability that can handle many times of entry and exit of workers, and is covered. It is an object of the present invention to provide an antifouling device for an opening, which can completely block dust and the like with an enveloping film.
Further, a third object of the present invention is to provide an indoor antifouling walkway body on the floor surface from the vicinity of the entrance/exit formed in the opening antifouling device, so that the area around the opening of the floor surface is provided. In addition, another object of the present invention is to provide an on-floor indoor antifouling device that keeps the entire area of the above-floor room clean.
Still further, a fourth object of the present invention is to prepare a sheet for a sweep window in which a sheet opening portion is formed, and stretch the sheet for the sweep window in accordance with the sweep window of a building so that the surroundings of the sheet for the sweep window are stretched. An object of the present invention is to provide an on-floor indoor antifouling device which is fixed to the periphery of a sweep window and whose seat opening is connected to an exit opening of a stretchable walkway body to enhance the antifouling function in the above-floor room.

The present invention has been made to solve the above problems, and a first aspect of the present invention prevents contamination of the above-floor chamber with dust or the like when performing underfloor work of a building. An on-floor indoor antifouling device, which is an opening that is opened on the floor surface for workers to get in and out of the floor, an antifouling device for the opening that is arranged so as to surround the upper part of the opening, and an antifouling device for the opening. The fouling device includes an opening frame surrounding the opening and arranged on a floor surface around the opening, and an enclosure surrounding a space surrounded by the opening frame so as to surround the opening. An on-floor indoor antifouling device comprising a film and a doorway opened or releasably provided on one surface of a surrounding film and used for underfloor work in which the doorway is operated through the doorway to enter and exit the opening.

According to a second aspect of the present invention, an opening-surrounding sheet is laid on the opening-surrounding floor, and one or more protective members for protecting the floor surface are arranged on or near the opening-surrounding sheet. This is an on-floor indoor antifouling device used for underfloor work, in which the opening frame is arranged on the protective member and the opening antifouling device is formed on the protective member.

A third aspect of the present invention is an on-floor indoor antifouling apparatus used for underfloor work in which an indoor antifouling walkway body is provided on the floor surface from the vicinity of an entrance/exit formed in an opening antifouling apparatus. ..

A fourth mode of the present invention is an underfloor that enhances the antifouling function by continuously hanging the inner end piece inward of the opening from the sheet around the opening or bending the inner end piece to the back side of the floor surface. It is a floor indoor antifouling device used in work.

A fifth aspect of the present invention is a rectangular parallelepiped opening antifouling device in which the opening antifouling device is assembled in a rectangular parallelepiped shape, and the rectangular parallelepiped opening antifouling device is a substantially rectangular parallelepiped opening frame. It is composed of a body and a substantially rectangular parallelepiped surrounding film, and the surrounding film has six substantially rectangular parallelepiped surfaces, has a lower end opening with a lower end surface opened, and has a front opening at the front face to form an entrance/exit. Or having a front film, the front film is formed with an opening cut line in a substantially square shape or a substantially U-shape, cut the opening cut line to cut an open film piece, hang it forward, or It is an indoor floor antifouling device used in underfloor work in which the entrance/exit is formed when it is rolled up and the enclosing film is covered from the lower end opening to the opening frame to constitute the rectangular parallelepiped opening antifouling device. ..

According to a sixth aspect of the present invention, in a rectangular parallelepiped opening antifouling device, the opening frame includes two rectangular frames having rectangular frame holes at four corners and connecting rod projections at left and right ends. It consists of four projecting connecting rods, and two rectangular frames are arranged facing each other in the state of being separated from each other. Four connecting rods are horizontally installed at four corners between the rectangular frames, and each connecting frame is connected. This is an on-floor indoor antifouling device used for underfloor work, which is formed into a rectangular parallelepiped by inserting the left and right connecting rod projections of the rods into the rectangular frame holes of the left and right rectangular frames, respectively.

In a seventh aspect of the present invention, in a rectangular parallelepiped opening antifouling device, the substantially rectangular parallelepiped frame for opening has an upper rectangular body in which four horizontal tubes are arranged in a rectangular shape, and four rectangular parallelepipeds. A lower rectangular body in which the horizontal tubes are arranged in a rectangular shape, and four vertical tubes in which the upper rectangular body and the lower rectangular body are spaced apart from each other and vertically face each other, and the four corners of the upper rectangular body and the lower rectangular body are connected vertically. Is installed upright to form a substantially rectangular parallelepiped, and three-way joints in which joint holes are formed in three directions are arranged at eight corners of the substantially rectangular parallelepiped, and two lateral pipes are provided in the three-way joint holes of each three-way joint. Is an on-floor indoor antifouling device for use in underfloor work, which is formed into a solid, substantially rectangular parallelepiped by inserting the ends of one end and one end of a vertical pipe.

An eighth aspect of the present invention is, in the opening-portion frame body 10 formed in a substantially rectangular parallelepiped, four horizontal tubes forming an upper rectangular body and four horizontal tubes forming a lower rectangular body, An expansion cord is inserted into each of the four vertical pipes that are erected upright, and the expansion cords are connected so as to be mutually expandable and contractable among the eight three-way joints. With the vertical pipes removed, the eight horizontal pipes, four vertical pipes and eight three-way joints are inseparable and can be expanded and contracted by their expansion cords, resulting in a substantially free state. It is an on-floor indoor antifouling device used for underfloor work in which the antifouling device can be easily assembled.

In a ninth aspect of the present invention, in a rectangular parallelepiped frame for openings, the elastic cords inserted into the four vertical tubes are elastic vertical cords having elastic rings formed at the upper and lower ends, and the upper rectangular body is The elastic cords that are inserted into the four horizontal pipes that are formed are formed by one elastic ring that inserts the four elastic rings above the four elastic vertical cords, and the four that form the lower rectangular body. The expandable cord inserted into the horizontal pipe of the above is formed of a single expandable annular string that inserts four expandable rings below the four expandable vertical strings. Is.

In a tenth aspect of the present invention, the opening antifouling device is a loop-shaped opening antifouling device assembled in a loop shape, and the loop-shaped opening antifouling device is a loop-shaped opening frame. And the loop-shaped wrapping film, the loop-shaped opening frame has two upright loop frames with an upper loop part and a height that allows workers to walk. Then, the two upright loop frame bodies are connected to each other so as to be spaced apart from each other by a connecting rod so as to include the opening, and are arranged opposite to each other. , The lower end surface is open and has a lower end opening, the front surface is open and has an entrance and exit for workers to enter and exit, a back surface film that seals the back surface, and a peripheral surface that seals the peripheral surface including two loops It is an on-floor indoor antifouling device that is used at the time of underfloor work, which is composed of at least a film.

An eleventh aspect of the present invention is that an indoor antifouling walkway body is an extendable walkway body placed on a floor continuously from an entrance of an opening antifouling device, and the extendable walkway body is Two or more upright-shaped upright loop frames, each having a loop portion above and having a height such that a worker can walk, are connected in a separated state, and the upright loop frame body has a plurality of upright loops. A frame hole is drilled, and a space between the two adjacent upright loop frames is sealed by a bottom film and a peripheral film, so that all upright loop frames can be walked by workers. When opened, the inlet side becomes an inlet opening and the outlet side becomes an outlet opening.When not in use, all the upright loop frame bodies are adjacent to each other in a compressed state to reduce the volume, and when in use, the space between adjacent upright loop frame bodies is required. This is an on-floor indoor antifouling device used for underfloor work, which is used as a walking path body by being connected to each other in a spaced-apart shape by a connecting rod to expand the volume.

A twelfth aspect of the present invention is to prepare one sheet for a sweep window having a sheet opening, and to stretch the sheet for the sweep window in accordance with the sweep window of a building, and to install the sheet for the sweep window around the sweep window sheet. It is fixed around the sweep window, the seat opening is formed in the same shape as the exit opening of the stretchable walkway, and the exit opening of the stretchable walkway is connected to the seat opening to enhance the antifouling function inside the floor It is an on-floor indoor antifouling device used for underfloor work.

A thirteenth aspect of the present invention is an on-floor indoor antifouling device used for underfloor work, wherein the indoor antifouling walkway body is a floor sheet laid on the floor from the entrance of the opening antifouling device. is there.

According to a fourteenth aspect of the present invention, one sheet for a sweep window having a sheet opening formed therein is prepared, the sweep window sheet is stretched in accordance with the sweep window of the building, and the periphery of the sweep window sheet is provided. This is an on-floor indoor antifouling device used for underfloor work, which is fixed around the sweep window and a floor sheet is connected to the seat opening to improve the antifouling function.

A fifteenth aspect of the present invention prepares a telescopic conduit having an insertion end portion on the front end side and a receiving end portion on the rear end side, and the telescopic conduit can be expanded and contracted to adjust its length. Used in underfloor work to support underfloor work by inserting a long member inside and connecting the insertion end to the antifouling device for the opening and introducing the long member under the floor from the opening on the floor surface It is an antifouling device on the floor.

According to a sixteenth aspect of the present invention, two or more telescopic conduits each having a lock button at an insertion end and a locking hole at a receiving end are prepared, and one telescopic conduit has the insertion end at the other end. Insert into the receiving end of the expandable conduit to lock the lock button in the lock hole to connect them inseparably, and repeat this process even for long members of arbitrary length from the floor opening to under the floor. It is an on-floor indoor antifouling device used for underfloor work that can be introduced to support underfloor work.

According to the first aspect of the present invention, there is provided an on-floor indoor antifouling device for preventing contamination of the above-floor room with dust or the like when performing an underfloor work of a building, and for allowing a worker to go in and out of the underfloor. It is possible to provide an on-floor indoor antifouling device including an opening that is opened on the floor and an antifouling device for an opening that is arranged so as to surround the opening. Since the upper part of the opening is covered with the antifouling device for the opening, dust and the like do not enter the floor upper room through the opening, and the floor room can be kept clean.
Further, since the opening antifouling device uses as a base a frame for an opening arranged on the floor surface surrounding the opening surrounding the opening, it is an extremely sturdy structure, It is possible to stably and safely maintain the structure even if the structure enters and leaves the opening many times. Moreover, since the opening frame has a constant weight, it has the advantage that it can be stably held at a fixed position without being moved by wind or contact with an operator. And since the space surrounded by the frame for the opening is surrounded by the surrounding film so as to surround the upper side of the opening, the internal space of the frame for the opening can be separated from the upper floor chamber in a hermetically sealed manner, It has a function of completely and surely blocking dust and the like from invading and escaping into the above-floor chamber through the internal space of the opening frame from the above portion.
Further, an opening or an opening that is opened or formed so as to be openable is formed on one surface of the surrounding film, and when it is opened, a blocking film may be provided as needed to open and close. Therefore, the worker can go in and out of the opening through the entrance to perform the underfloor work, and the underfloor work can be efficiently advanced while maintaining the cleanliness of the above-floor chamber.
Furthermore, if the surrounding film is formed of a transparent film, the operation of the worker inside can be easily visually recognized from the outside, and the light is transmitted from the opening on the floor surface to the bottom of the floor by lighting or natural light in the floor above the floor, A worker in the room can easily confirm the position of the opening, and the opening can function as a lighting window under the floor. Needless to say, it is possible to light the inside of the floor from the opening in the underfloor work.

According to the second aspect of the present invention, the opening surrounding sheet can be laid on the opening surrounding floor to prevent the opening surrounding floor from being contaminated. The sheet around the opening may be formed by bending the lower edge of the wrapping film into an inner envelope, cutting the bottom side film of the wrapping film into a rectangular shape, or laying an annular bottom sheet, or laying one bottom surface. There are various forms such that the sheet may be cut out and opened.
Further, one or more protective members for protecting the floor surface may be arranged on or near the opening surrounding sheet, and one or more protective members may be provided on the opening surrounding floor without providing the opening surrounding sheet. The opening antifouling device can be formed on the protective member by arranging the same and disposing the opening frame on the protective member. With this configuration, the floor surface can be protected from the sturdy frame for the opening portion and the floor surface is not damaged, so that a safe and secure floor antifouling device can be provided.
Further, if the protective member is made of rubber or a flexible resin, it has a high friction property with respect to the floor surface and the protective member does not easily slip on the floor surface. When the above is assembled, the opening antifouling device does not move to the left or right even when the worker comes into contact therewith, and the positional stability of the opening antifouling device can be secured.

According to the third aspect of the present invention, an on-floor indoor antifouling device used for underfloor work in which an indoor antifouling walkway body is provided on the floor surface from the vicinity of an entrance/exit formed in the opening antifouling device. Will be provided.
As described above, the interior film of the opening antifouling device that covers the opening is completely shielded from the dust and the like by the surrounding film of the opening antifouling device. According to the third aspect, dust and the like brought out when an operator enters and leaves the entrance/exit of the surrounding film is prevented from diffusing into the floor room by the indoor antifouling walkway body.
Examples of indoor antifouling walkways include floor sheets and telescopic walkways described below. If a wide floor sheet is used, even if an operator walks, dust and the like will only fall onto the floor sheet and will not diffuse into the floor room. In addition, if the stretchable walkway is sealed from the outside air, even if a worker walks in it, dust and the like will only fall inside the stretchable walkway, and it is possible to keep the floor room clean. It will be possible.

According to the 4th form of this invention, an inner end piece is made to hang inward of an opening continuously from an opening surrounding sheet, or an inner end piece is bent to the back side of a floor surface, and an antifouling function is provided. It is possible to provide an on-floor indoor antifouling device.
At least the inner end piece of the opening-surrounding sheet covering the floor surface around the opening portion is lengthened toward the opening portion, and the inner end piece is hung inward of the opening portion, or the inner end piece is placed on the back side of the floor surface. If it is bent, it is possible to prevent dust from entering between the sheet around the opening and the floor surface, and to prevent the inner edge of the opening from being contaminated with dust.

According to the fifth aspect of the present invention, there is provided a rectangular parallelepiped opening antifouling device assembled in a rectangular parallelepiped shape as the opening antifouling device. The rectangular parallelepiped shape is a concept including a rectangular parallelepiped including a cube and a substantially rectangular parallelepiped shape. Since it has a rectangular parallelepiped shape, even if a worker comes in contact with it, the rectangular parallelepiped opening antifouling device does not easily slip on the floor surface, does not roll, and can maintain a stable fixed position, resulting in a stable floor surface opening. Since it can be surrounded at all times, the cleanliness of the room above the floor can be stably maintained.
Further, the rectangular parallelepiped opening antifouling device is composed of a substantially rectangular parallelepiped opening frame and a substantially rectangular parallelepiped surrounding film, and the substantially rectangular parallelepiped opening frame can be easily assembled and rolled. In addition, since it has a predetermined weight, it does not roll, does not laterally shift, and has positional stability. Further, it is possible to easily cover the opening frame with a substantially rectangular parallelepiped shape, and it is possible to reliably seal the internal space of the opening frame.
Further, the wrapping film 20 is formed of six substantially rectangular parallelepiped surfaces, has a lower end opening with a lower end surface opened, and has the front opening at the front face to form the entrance or exit, or has a front film. An opening cut line is formed on the front film in a substantially L-shape, a substantially square shape, or a substantially U-shape, and the opening cut line is cut to cut an open film piece, hang it forward, or roll it up. Therefore, the entrance and exit can be easily opened. In the case of the front opening, an opening/closing film that can open and close the front opening can be attached separately, or can be configured to be openable/closable by the open film piece simply by hanging or rolling it up without cutting the open film piece.
Furthermore, the surrounding film can be covered from the lower end opening to the opening frame from the upper side to the lower side to easily configure the rectangular parallelepiped opening antifouling device.

According to a sixth aspect of the present invention, in the rectangular parallelepiped opening antifouling device, the opening frame includes two rectangular frames having rectangular frame holes at four corners, and connecting rods at left and right ends. It consists of four connecting rods with protruding projections, and the two rectangular frames are arranged facing each other in the left-right direction, and four connecting rods are horizontally installed at four corners between the rectangular frames. By mounting the left and right connecting rod projections of the respective connecting rods into the rectangular frame holes of the left and right rectangular frames, respectively, it is possible to easily provide the floor-top indoor antifouling device configured in a rectangular parallelepiped shape.
Since the two rectangular frames consisting of rods and four connecting rods are disassembled and brought to the site, the members are not bulky, and by simply combining them on site, it is easy to construct a solid structure for a rectangular parallelepiped opening. It has the advantage that the fouling device can be assembled.

According to the seventh aspect of the present invention, in the rectangular parallelepiped opening antifouling device, the substantially rectangular parallelepiped opening frame has an upper rectangular body in which four horizontal tubes 13 are arranged in a rectangular shape, and A lower rectangular body in which the horizontal tubes are arranged in a rectangular shape, an upper rectangular body and a lower rectangular body are spaced apart and vertically face each other, and four corners of the upper rectangular body and the lower rectangular body are vertically connected. A vertical pipe is erected to form a substantially rectangular parallelepiped, and three-way joints having joint holes formed in three directions are arranged at eight corners of the substantially rectangular parallelepiped, and two three-way joint holes are provided in each three-way joint. By simply inserting the ends of the horizontal pipe and the ends of one vertical pipe, it is possible to provide an on-floor indoor antifouling device that is easily configured into a strong rectangular parallelepiped.
Eight horizontal pipes, four vertical pipes, and eight three-way joints made of pipes are disassembled and brought to the site, so the members are not bulky, and they are simply a strong structure simply by combining them on site. The antifouling device for a rectangular parallelepiped opening can be assembled, and various pipes can be used.

According to the eighth aspect of the present invention, in the opening-portion frame body formed into a substantially rectangular parallelepiped, four horizontal tubes forming the upper rectangular body and four horizontal tubes forming the lower rectangular body, An expansion cord is inserted into each of the four vertical pipes that are erected upright, and the expansion cords are connected to each other in the eight three-way joints 15 so that they can expand and contract. When the pipe and the vertical pipe are pulled out, the eight horizontal pipes, the four vertical pipes and the eight three-way joints become inseparable and expandable due to their expansion and contraction cords, and the rectangular parallelepiped opening is formed. It is possible to provide an on-floor indoor antifouling device with which the antifouling device for a room can be easily assembled.
The difference from the seventh mode is that the eight horizontal pipes, the four vertical pipes, and the eight three-way joints are configured to be inseparable and expandable by their expansion and contraction cords. Therefore, even if disassembled, the eight horizontal tubes, the four vertical tubes, and the eight three-way joints are in a substantially free state in which they cannot be separated by the expansion cord and can be expanded and contracted. There is an advantage that the partial antifouling device can be easily reassembled.
That is, when transporting, it is only necessary to load the bag in a substantially free state that is not separable and expandable, and reassemble it to the basic shape on site, so there is no loss of members, easy transportation, and An antifouling device for a rectangular parallelepiped opening that can be quickly reassembled can be realized.

According to the ninth aspect of the present invention, in the rectangular parallelepiped opening frame, the elastic cords inserted into the four vertical pipes are elastic vertical cords having elastic rings formed at the upper and lower ends, respectively. The telescopic cord inserted into the four horizontal tubes forming the body is formed by one telescopic annular cord that passes through the four telescopic rings above the four telescopic vertical cords to form a lower rectangular body. Provided is an on-floor indoor antifouling device in which an elastic cord inserted through four lateral pipes is formed by one elastic annular cord through which four elastic rings below four elastic vertical cords are inserted. ..
The ninth mode is an embodiment as a subordinate concept of the eighth mode, and is characterized in that four elastic vertical cords having elastic rings at the upper and lower ends and two elastic ring cords are used. The present inventors repeated disassembling and reassembling many times, but by constructing the elastic cord in this manner, it is possible to realize a substantially free state in which the elastic cord is not separable and can be expanded and contracted even if it is disassembled for transportation. Moreover, it was possible to speed up reassembly.

According to the tenth aspect of the present invention, the opening antifouling device is a loop-shaped opening antifouling device assembled in a loop shape, and includes a loop-shaped opening frame and a loop-shaped surrounding film. A structured antifouling device for a loop-shaped opening can be provided. This embodiment is another embodiment different from the antifouling device for a rectangular parallelepiped opening described above. By forming the loop shape, the number of members can be reduced and the worker can work while standing up, which is an advantage that workability can be improved.
As for the loop-shaped opening frame, two upright loop frames having an upside loop portion and having a height that allows a worker to walk are prepared, and 2 The upright loop frame bodies are connected to each other so as to be separated from each other by connecting rods and arranged so as to face each other. The front surface is openable to form an entrance/exit through which a worker can enter and exit, and is composed of at least a back film for sealing a back surface and a peripheral film for sealing a peripheral surface including the two loop portions. A floor indoor antifouling device is provided.
Since the two upright loop frames and the connecting rod for separation are only composed of the films on each surface, if the connecting rod is detached and the surrounding film is removed, the two upright loop frames face each other. There is an advantage that the film on each side also contracts only by bringing them into contact with each other, and the entire volume can be reduced. By allowing the upright loop frame to also be assembled, it is extremely easy to carry. The whole can be easily assembled by disassembling and transporting the whole, assembling the two upright loop frame bodies on site, separating them from each other with a connecting rod, and then enclosing them with an enclosing film.

According to the eleventh aspect of the present invention, the indoor antifouling walkway body is composed of an extendable walkway body that is continuously placed on the floor surface from the entrance of the opening antifouling device and is reduced. There is an advantage that the volume is contracted to facilitate transportation, and the volume can be expanded to reconstruct the whole if easily assembled on site.
The telescopic walking path body has two or more upright-shaped upright loop frame bodies that are separated from each other and have an upright loop frame body that has a loop portion above and a height that allows workers to walk. Has a plurality of holes for the upright loop frame, and the space between every two adjacent upright loop frames is sealed by a bottom film and a peripheral film. It is opened so that a worker can walk, and has an entrance opening on the entrance side and an exit opening on the exit side. When not in use, all of the upright loop frames are adjacent to each other in a compressed state to reduce the volume, and when in use, the adjacent upright loop frames are connected to each other by connecting rods so as to be spaced apart from each other, and the volume is expanded to cause a walkway. Can be used as a body. It is possible to provide an on-floor indoor antifouling device having such a stretchable walking path body.
Therefore, there is an advantage that the volume can be reduced and transported, and the indoor antifouling walkway body can be realized simply and quickly by expanding the volume on site.

According to the twelfth aspect of the present invention, one sheet for the sweep window having a sheet opening formed therein is prepared, and the sheet for the sweep window is stretched in accordance with the sweep window of the building. The surroundings are fixed around the sweep window, the seat opening is formed into a shape that is almost the same as the exit opening of the stretchable walkway, and the exit opening of the stretchable walkway is connected to the seat opening to prevent soiling inside the floor. It is possible to provide an on-floor indoor antifouling device that is used in underfloor work that is highly sophisticated.
There is an advantage that the cleanliness of the sweep window can be maintained by using only one sweep window sheet. Moreover, if the seat opening of this sweep window seat is joined to the exit opening of a stretchable walkway of approximately the same shape, the floor opening and the sweep window can be integrated to achieve complete cleaning of the floor room. It is possible to carry out underfloor work while maintaining the highest cleanliness in the above-floor room.

According to the thirteenth aspect of the present invention, the indoor antifouling walkway body is a floor sheet that is a floor sheet laid on the floor from the entrance of the opening antifouling device, and is used for underfloor indoor antifouling. A device can be provided.
Since only the floor sheet is used as a walkway for indoor antifouling, the floor floor can be easily antifouled by using a wide floor sheet. A device can be provided.

According to the fourteenth aspect of the present invention, one sheet for the sweep window having a sheet opening formed therein is prepared, and the sheet for the sweep window is stretched so as to fit the sweep window of the building. It is possible to provide an on-floor indoor antifouling device used for underfloor work in which the periphery is fixed around the sweep window and the floor sheet is connected to the sheet opening to improve the antifouling function.
By simply connecting the floor sheet of the thirteenth form, which is an indoor anti-fouling walkway, to the sheet opening of the sweep window sheet, the floor window to the sweep window can be integrated to clean the floor room interior. It can be realized completely, and underfloor work can be performed while maintaining the cleanliness of the above-floor room.

According to the fifteenth aspect of the present invention, there is provided a telescopic conduit having an insertion end on the front end side and a receiving end on the rear end side, and the telescopic conduit can be expanded and contracted to adjust its length. Used for underfloor work to support underfloor work by inserting a long member into the conduit, connecting the insertion end to the antifouling device for the opening, and introducing the long member under the floor from the opening on the floor surface. A floor indoor antifouling device can be provided.
The long member of the present embodiment is, for example, an electric cable, a water hose, a chemical liquid hose, or another long member, and the long member is inserted into the expansion conduit from the inside of the floor or the outside of the building and is distributed under the floor from the opening. Since it can be installed, it is possible to prevent contamination of the floor upper chamber due to the long member, and it is possible to efficiently maintain the cleanliness of the floor upper chamber.
By connecting two or more expandable conduits, there is an advantage that a long member having an arbitrary length can be dealt with.

According to the sixteenth aspect of the present invention, two or more telescopic conduits each having a locking button at the insertion end and a locking hole at the receiving end are prepared, and the insertion end of one telescopic conduit is provided. Into the receiving end of the other telescopic conduit to lock the locking button in the locking hole to connect them inseparably, and by repeating this, even for long members of arbitrary length from the floor opening It is possible to provide an on-floor indoor antifouling device used in underfloor work that can be installed under the floor to support underfloor work.
Since two or more telescopic conduits having a lock button at the insertion end and a lock hole at the receiving end can be locked and connected, they cannot be separated on the way except for the separation operation There is an advantage that it is possible to prevent contamination of the upper floor chamber by the member regardless of its length.

FIG. 1 is an overall view of an on-floor indoor antifouling apparatus 1 used in underfloor work according to the present invention. FIG. 2 is an overall perspective view of the on-floor indoor antifouling apparatus 1 using the open film piece 25 in the present invention. FIG. 3 is an enlarged view of a state in which the inner end piece 31 of the opening surrounding sheet 30 is hung or bent in the present invention. FIG. 4 is an exploded perspective view of an embodiment of the opening frame 10 according to the present invention. FIG. 5 is an assembly exploded perspective view of the floor indoor antifouling device 1 according to the present invention. FIG. 6 is an overall perspective view of an on-floor indoor antifouling apparatus 1 using an expandable walking path body 43 as an indoor antifouling walking path body 40 in the present invention. FIG. 7 is an overall perspective view of an on-floor indoor antifouling apparatus 1 using a loop-shaped opening antifouling apparatus 2B as the opening antifouling apparatus 2 of FIG. FIG. 8 is an exploded perspective view of a telescopic walkway body 43 used as the indoor antifouling walkway body 40 in the present invention. FIG. 9 is a layout view of the telescopic conduit 50 connected to the opening antifouling device 2 in the present invention. FIG. 10 is a state diagram showing a shortened state and an extended state of the telescopic conduit 50 shown in FIG. FIG. 11 is a state diagram showing an example of a building outlet of the indoor antifouling walkway body 40 in the present invention. FIG. 12 is a perspective view of another embodiment of the opening frame 10 according to the present invention. FIG. 13 is a joint connection diagram for explaining the connection state of the three-way joint 15, the vertical pipe 14, and the lower horizontal pipes 13, 13 shown in FIG. 12 in the present invention. FIG. 14 shows a combined state of the expandable and retractable annular cords 16 inserted in the four horizontal pipes 13 in the upper and lower stages and the extendable and retractable vertical cords 17 inserted in the four vertical pipes 14 in FIG. 12 of the present invention. FIG. FIG. 15 is a perspective view showing a specific example of the three-way joint 15 shown in FIG. 12 in the present invention. FIG. 16 is a specific configuration diagram of the opening frame 10 assembled using only one three-way joint 15 of FIG. 15 in the present invention. FIG. 17 is an enlarged view of a corner portion in which two horizontal pipes 13 and one vertical pipe 14 are connected by a three-way joint 15 in the frame 10 for openings shown in FIG. 16 of the present invention. FIG. 18 is a view showing the opening frame 10 shown in FIG. 16 of the present invention, which includes an expandable annular cord 16 inserted into two horizontal pipes 13 and an extendable vertical cord 17 inserted into one vertical pipe 14. It is an expansion-contraction string connection figure which shows a connection state. 19 is an assembly procedure diagram for assembling the opening frame 10 shown in FIG. 16 of the present invention.

Hereinafter, an embodiment of an on-floor indoor antifouling apparatus used for underfloor work according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is an overall view of an on-floor indoor antifouling apparatus 1 used in underfloor work according to the present invention. Now, description will be made assuming that the opening 4 that goes under the floor is present in the kitchen room.
A kitchen device A is present in the kitchen room, and an opening 4 communicating with the underfloor is opened on the floor surface 5 thereof. In order to carry out underfloor work, an on-floor indoor antifouling device 1 is arranged. The on-floor indoor antifouling apparatus 1 is composed of an opening antifouling apparatus 2 that surrounds the opening 4 from above, and an indoor antifouling walkway body 40 on which an operator 3 walks in an on-floor room.

The opening antifouling device 2 is composed of a rectangular parallelepiped opening antifouling device 2A formed in a substantially rectangular parallelepiped shape, and the opening frame is arranged so as to surround the opening 4 above and below where the worker 3 enters and leaves the floor. The body 10 is arranged and sealed by an enveloping film 20 that surrounds the entire opening frame 10. The rectangular parallelepiped shape is easy to handle and install, and even if the worker 3 comes into contact with the floor, it can be prevented from moving or rolling in the room due to the frictional force with the floor surface. 2A position stability is guaranteed. Moreover, since the opening frame 10 has a predetermined weight, the stability of the shape and the difficulty of movement thereof can further secure the stability of the fixed position.
The opening antifouling device 2 surrounds the interior of the room, and an opening cut line 24 is formed in a U shape on the front side of the film 20. By cutting the opening cut line 24, the open film piece 25 falls forward and the entrance is opened. It is opened. An opening surrounding sheet 30 is laid in a rectangular ring shape on the opening surrounding floor 6 existing around the opening 4, and protective members 35, 35 are arranged on both left and right sides of the opening surrounding sheet 30. .. The opening frame 10 is placed on the upper side of the protective members 35, 35.
The protection member 35 is made of rubber, a flexible resin, a strong sponge body, or the like, and is configured so that the floor surface 5 is not damaged by the sturdy opening frame 10. Moreover, the protective member 35 is configured to exert a large frictional force when it moves with respect to the floor surface so that the opening frame 10 does not move with respect to the floor surface. That is, the protection member 35 guarantees the floor surface protection and the fixed position stability of the opening frame 10.
In the present embodiment, the indoor antifouling walkway body 40 is composed of a wide floor sheet 41, and the floor sheet 41 is laid from the front lower edge of the opening antifouling device 2 to the front, The length may be adjusted to the required length in the room or may be laid down to the outer wall of the building.

FIG. 2 is an overall perspective view of the on-floor indoor antifouling apparatus 1 using the open film piece 25 in the present invention.
By cutting the opening cut line 24, the open film piece 25 falls forward to open the entrance/exit 26, and the worker 3 can enter/exit the opening 4 through this entrance/exit. Even if the worker 3 enters and leaves the opening 4, the opening antifouling device 2 prevents dust and the like from entering the floor upper chamber. Further, an opening/closing film piece can be attached to the entrance/exit 26, and when the opening/closing film piece is opened and closed at the time of entrance/exit, the airtightness can be secured, and thus the cleanliness can be further improved. Further, even if the worker 3 walks on the floor sheet 41 via the doorway 26, the wide floor sheet 41 prevents dust and the like from contaminating the floor upper chamber.

FIG. 3 is an enlarged view of a state in which the inner end piece 31 of the opening surrounding sheet 30 is hung or bent in the present invention.
(3A) is an enlarged perspective view, and the cleanliness around the opening 4 can be secured by the floor sheet 41 and the opening surrounding sheet 30 on the floor 5. Further, since the inner end piece 31 of the opening surrounding sheet 30 hangs downward from the four sides around the opening 4, there is no gap between the floor surface 5 and the opening 3 even if the worker 3 goes in and out. It is possible to completely prevent dust and the like from 4 from entering the floor surface 5 through the gap, and there is an advantage that the cleanliness of the floor surface 5 can be secured. The opening surrounding sheet 30 may be formed by bending the lower end peripheral edge of the above-described wrapping film 20 inwardly, or an independent rectangular annular sheet may be placed on the opening surrounding floor 6 and the like. Can be configured in any way.
(3B) is a cross-sectional view of the hanging state of the inner end piece 31, and it can be seen that the inner end piece 31 of the opening surrounding sheet 30 hangs downward into the opening 4. It goes without saying that this droop cuts off the intrusion of dust and the like to the floor surface 5. The extension sheet 29 may be the floor sheet 41, or one side of the opening-surrounding sheet 30 may be extended to be long and continuous with the floor sheet 41.
(3C) is a cross-sectional view of a bent state of the inner end piece 31, showing a state in which the inner end piece 31 of the opening surrounding sheet 30 is bent to the back surface side of the floor surface 5. Bending is more effective in blocking dust and the like, which is convenient for maintaining the cleanliness of the floor surface 5. It can be seen that it hangs downward into the opening 4.

FIG. 4 is an exploded perspective view of an embodiment of the present invention in which the opening frame 10 has a rectangular parallelepiped shape.
FIG. 4A is an exploded view of the opening frame 10. In the rectangular parallelepiped opening antifouling device 2A, in the assembly of the opening frame 10, two rectangular frames 11 having rectangular frame holes 11a at four corners are arranged so as to face each other on the left and right. In a state where the two rectangular frames 11 and 11 are separated from each other, four connecting rods 12, 12, 12 and 12 having connecting rod projections 12a and 12a protruding from the left and right ends are provided between the four corners of the rectangular frame 11. It is installed horizontally.
(4B) is a completed assembly diagram of the opening frame 10, and when the left and right connecting rod projections 12a, 12a of each connecting rod 12 are inserted and fixed in the rectangular frame holes 11a, 11a of the left and right rectangular frames 11, respectively. The frame 10 for openings having a substantially rectangular parallelepiped shape is completed.
As described above, the opening frame 10 is easy to assemble, and since it has a constant weight, it is difficult to move and does not roll. Therefore, when it is arranged in the opening 4, it is excellent in fixed position stability. There is.

FIG. 5 is an assembly exploded perspective view of the floor floor indoor antifouling apparatus 1 including the rectangular parallelepiped opening antifouling apparatus 2A in the present invention.
(5A) is a perspective view of the substantially rectangular parallelepiped opening-use frame body 10 completed in FIG. 4, disassembled and transported to the site, and easily assembled at the site as illustrated.
(5B) is a perspective view of the enclosing film 20 having a substantially rectangular parallelepiped shape. The surrounding film 20 is composed of six faces of a substantially rectangular parallelepiped shape, has a lower end opening 21 whose lower end face is open, has a front film 27 on the front side, and the front film 27 has a substantially square or substantially square shape. An opening cut line 24 is formed in a letter shape, and the opening 26 is opened when the opening cut line 24 is cut to cut the open film piece 25 or hang it forward. Therefore, there is an advantage that not only the airtightness can be secured but also the entrance and exit can be performed very easily.
As another embodiment, the front film 27 may have a front opening from the beginning, and the front opening may serve as the entrance/exit 26. In this case, if the opening/closing film piece that opens and closes the front opening is attached to the front film 27 so as to be openable and closable, the airtightness can be secured and the effect of blocking dust and the like is enhanced. The remaining three surfaces are composed of side surface films 22, 22, 22, and an upper surface film 23 is arranged on the upper surface side.
(5C) When the surrounding film 20 is covered from the lower end opening 21 to the opening frame 10 and is lowered, the rectangular parallelepiped opening antifouling device 2A is completed. Below, an opening surrounding sheet 30 is laid around the opening 4, and inner end pieces 31 on four sides thereof hang downward. Of course, it may be bent along the lower side of the floor surface, and the cleanliness around the opening can be secured. Protective members 35, 35, each having a floor material 36 and a side material 37 formed in a substantially right angle shape, are arranged on both left and right sides thereof. The floor surface is not damaged, and the high friction property of the protective member prevents movement and rolling, providing excellent stability. A floor sheet 41 is laid on the floor as the indoor antifouling walkway body 40. Therefore, if the above-mentioned anti-fouling device 2A for rectangular parallelepiped openings is placed on the protective member 35 arranged above or in the vicinity of the opening peripheral sheet 30, the anti-fouling device 2A for rectangular parallelepiped openings is provided. The on-floor indoor antifouling device 1 including the floor sheet 41 is configured. The edge of the floor sheet 41 need only be overlapped with the upper side or the lower side of the opening surrounding sheet 30. Therefore, the whole structure can be assembled quickly and easily.

FIG. 6 is an overall perspective view of an on-floor indoor antifouling apparatus 1 using an expandable walking path body 43 as an indoor antifouling walking path body 40 in the present invention.
In this on-floor indoor antifouling apparatus 1, the above-mentioned rectangular parallelepiped opening antifouling apparatus 2A is used as the opening antifouling apparatus 2, and the telescopic walking path body 43 is used as the indoor antifouling walking path body 40. There is. When the open film piece 25 is hung down forward by the rectangular parallelepiped opening antifouling device 2A, an entrance/exit 26 is formed, and an extendable walkway body 43 is placed on the floor surface 5 in connection with the entrance/exit 26.
Two or more telescopic walking path bodies 43 are continuously arranged in a state where upright standing upright loop frame bodies 44 having a height enough for a worker to walk are separated from each other. A space between the two adjacent upright loop frames 44, 44 is sealed by a bottom film 46 and a peripheral film 47, and all the upright loop frames 44 are opened so that the worker 3 can walk. There is. An entrance opening 43a is formed on the entrance side of the telescopic walking path body 43, and an exit opening 43b is formed on the exit side. When the stretchable walkway body 43 is not used, all the upright loop frame bodies 44 are adjacent to each other in a compressed state to reduce the volume thereof so that they can be transported. At the time of use, the upright loop frame bodies 44 are separated from each other to expand the volume, and the required adjacent upright loop frame bodies 44, 44 are connected by a connecting rod 45 to stably maintain the separated state. Therefore, the stretchable walkway body 43 is expanded in volume and used as a walkway body.
Since the entrance 26 of the anti-fouling device 2A for the rectangular parallelepiped opening and the entrance opening 43a of the telescopic walkway body 43 are aligned with each other, the worker 3 can pass through the entrance and exit from the exit opening 43b. As described above, the telescopic walkway body 43 is not only easy to carry and assemble, but also has an advantage that the antifouling property in the floor room is remarkably excellent because it is excellent in hermeticity.
The magnets 48 are attached to the upright loop frame bodies 44 in the front row and the last row at appropriate intervals, and when connecting the telescopic walkway bodies 43 of two or more stages, the upright loop frame bodies in the last row of the first stage are connected. If the magnet 48 of 44 and the magnet 48 of the upright loop frame body 44 in the front row of the second stage are magnetically attached, it is possible to easily connect the telescopic walkway bodies 43 of two or more stages to each other. A long indoor antifouling walkway 40 can be configured.

FIG. 7 is an overall perspective view of an on-floor indoor antifouling apparatus 1 using a loop-shaped opening antifouling apparatus 2B as the opening antifouling apparatus 2 of FIG.
In this on-floor indoor antifouling apparatus 1, a loop-shaped opening antifouling apparatus 2B is newly used as the opening antifouling apparatus 2, and the above-described stretchable walkway body 43 is used as the indoor antifouling walkway body 40. ing. The loop-shaped opening antifouling device 2B includes a loop-shaped opening frame 10 and a loop-shaped surrounding film 20.
The loop-shaped opening frame body 10 is provided with two upright-standing upright loop frame bodies 44 each having a loop portion 44a above and having a height such that a worker can walk. The two upright loop frame bodies 44 are connected so as to be separated from each other by a connecting rod 45 so as to include the portion 4 and are arranged to face each other.
The loop-shaped wrapping film 20 is composed of four surfaces, a back surface, a front surface, a peripheral surface and a lower end surface, the lower end surface is opened to have a lower end opening 21, and the front surface is opened to serve as an entrance/exit 42, or an opening. A front film that can be formed is provided and a part of the front film can be opened to form an entrance/exit 42 through which the worker 3 enters and exits. A back film 49 that seals the back surface and a circumference including the two loop portions 44a, 44a are provided. At least a peripheral film 47 for sealing the surface is formed.
Further, as described above, the opening surrounding sheet 30 is laid around the opening 4, and the inner end pieces 31 on the four sides thereof are hung downward. Protective members 35, 35, each having a floor material 36 and a side material 37 formed in a substantially right angle shape, are arranged on both the left and right sides thereof. The two upright loop frame bodies 44, 44 separated from each other are placed on the two protection members 35, 35 arranged opposite to each other with the opening 4 interposed therebetween. The protection member protects the floor surface, and at the same time, the loop-shaped opening antifouling device 2B is prevented from moving due to the high friction property of the protection member, and the fixed position stability can be secured. Further, if the worker 3 grasps the two upright loop frame bodies 44, 44, the location can be easily changed, and after the installation, the operation effect such as not to fall can be exhibited.
The opening peripheral sheet 30 may be provided by laying a rectangular annular sheet on the floor surface 6 around the opening, or the back film 49 and the peripheral film 47 and, if necessary, the lower end peripheral portion of the front film is folded inward. It goes without saying that they can be arranged by various methods such as being formed by bending.

A telescopic walkway body 43 is used as the indoor antifouling walkway body 40. As described above, two or more telescopic walkway bodies 43 are continuously arranged in a state where the upright loop frame bodies 44 having an upright shape having a height that allows a worker to walk are separated. A space between the two adjacent upright loop frames 44, 44 is sealed by a bottom film 46 and a peripheral film 47, and all the upright loop frames 44 are opened so that the worker 3 can walk. There is.
An inlet opening 43a is formed on the inlet side and an outlet opening 43b is formed on the outlet side. In this embodiment, the inlet opening 43a is shared with the inlet/outlet 42 of the loop-shaped opening antifouling device 2B. Further, the upright loop frame body 44 on the entrance side of the telescopic walking path body 43 is used in common with the upright loop frame body 44 on the doorway 42 side of the loop-shaped opening antifouling device 2B. When the upright loop frame body 44 is not shared, the upright loop frame body 44 on the entrance side of the telescopic walking path body 43 and the upright loop frame body 44 on the doorway 42 side of the loop-shaped opening antifouling device 2B are adjacent to each other. In this state, the inlet opening 43a and the inlet/outlet 42 also communicate with each other.
The stretchable walkway body 43 reduces the volume of all the upright loop frame bodies 44 to a compressed state so that it can be easily transported when not in use, and separates the upright loop frame bodies 44 from each other when in use, so that adjacent upright loop frame bodies are required. 44 and 44 are connected to each other by a connecting rod 45 to expand the volume and used as a walker.
Magnets 48 are attached to the upright loop frames 44 in the front row and the last row of the stretchable walkway body 43 at appropriate intervals, and when connecting the stretchable walkway bodies 43 of two or more stages, the end of the first stage If the magnets 48 of the upright loop frame bodies 44 in the row and the magnets 48 of the upright loop frame bodies 44 in the second row of the front row are magnetically attached, the expandable walkway bodies 43 of two or more steps can be easily connected to each other. Therefore, the indoor antifouling walkway body 40 having an arbitrary length can be configured.
In this embodiment, since the opening antifouling device 2 and the telescopic walkway body 43 can be configured to have substantially the same shape, they can be transported and assembled more quickly and easily, and the operator 3 walks because the entire device is tall. Has a characteristic that can be reasonably performed.

FIG. 8 is an exploded perspective view of a telescopic walkway body 43 used as the indoor antifouling walkway body 40 in the present invention.
(8A) is a perspective view of the stretchable walkway body 43 in a half-opened state. As described above, the telescopic walkway body 43 of the present embodiment has the upright loop frame body 44 having the loop portion 44a at the upper side and having a height that allows the worker to walk, in a state in which the upright loop frame body 44 is separated. More than one is installed in a row. Further, the upright loop frame body 44 is provided with a plurality of upright loop frame body holes 44b. A space between the two adjacent upright loop frames 44, 44 is sealed by a floor film 46 and a peripheral film 47, and all upright loop frames 44 are opened so that the worker 3 can pass through. ing. Therefore, an inlet opening 43a is formed on the inlet side and an outlet opening 43b is formed on the outlet side.
(8B) is a perspective view of a plurality of connecting rods 45. The connecting rod 45 is a rod for connecting adjacent upright loop frame members 44, 44 to each other, and connecting rod protrusions 45a, 45a are provided at both ends in a protruding manner. The connecting rod projections 45a, 45a are inserted and fixed into the upright loop frame body holes 44b, 44b of the adjacent upright loop frame bodies 44, 44 to separate the upright loop frame bodies 44, 44 from each other.
Therefore, when not in use, all the upright loop frame bodies 44 are compressed to be adjacent to each other to reduce the volume so that they can be easily transported to the site, and when in use, the connecting rods between adjacent upright loop frame bodies 44, 44 required at the site are connected. Magnets 48 are attached to the upright loop frame bodies 44 in the front row and the rear row of the telescopic walkway body 43 at appropriate intervals and are connected to each other in a spaced-apart shape by 45 to be expanded and used as a walkway body. When connecting the stretchable walkway body 43 of more than one step, the magnet 48 of the upright loop frame body 44 in the last row of the first step and the magnet 48 of the upright loop frame body 44 in the front row of the second step are magnetized. If it is worn, it is possible to easily connect the expandable walkway bodies 43 having two or more stages to each other, and thus it is possible to configure the indoor antifouling walkway body 40 having an arbitrary length.
As described above, if the expandable walking path body 43 is used as the indoor antifouling walking path body 40, transportation from the warehouse to the site and assembly at the site can be performed quickly and easily, and even in a vast room, there are a plurality of steps. There is an advantage that can be easily connected only by a magnet.

FIG. 9 is a layout view of the telescopic conduit 50 connected to the opening antifouling device 2 in the present invention.
The telescopic conduit 50 having the insertion end 50a on the tip side is arranged on the floor surface 5, and the insertion end 50a is inserted into the connection hole 2c of the opening antifouling device 2. A long member is inserted into the expandable conduit 50 to supply necessary materials from the outside. The long member includes various members such as an electric cable, a tap water tube, and a chemical solution supply tube. As a result, it is possible to support the underfloor work by supplying necessary materials under the floor without polluting the above-floor chamber.

FIG. 10 is a state diagram showing a shortened state and an extended state of the telescopic conduit 50 shown in FIG.
(10A) is a shortened state diagram of the telescopic conduit 50. The expandable conduit 50 has a locking button 50c at the insertion end 50a and a locking hole 50d at the rear receiving end 50b. When not used for work, the telescopic conduit 50 is shortened for transportation.
(10B) is an expansion state diagram of the telescopic conduit 50. At the work site, the telescopic conduit 50 is extended, and the long member 51 such as an electric cable, a tap water tube, and a chemical solution supply tube is inserted therein.
When the floor space is large, the length of one expansion conduit 50 may be insufficient. Therefore, two or more expandable conduits 50 are prepared. The insertion end 50a of one expansion tube 50 is inserted into the receiving end 50b of the other expansion tube 50 to lock the locking button 50c in the locking hole 50d so that they cannot be separated from each other. By repeating this, even the long member 51 having an arbitrary length can be introduced from the outside to the underfloor through the opening 4 of the floor surface 5, so that it can be applied from a normal room to a vast room and strongly supports underfloor work. be able to.

FIG. 11 is a state diagram showing an example of a building outlet of the indoor antifouling walkway body 40 in the present invention.
(11A) is a method of attaching the sweep window sheet 65. The sweep window 61 is formed on the outer wall surface 60 of the building, and includes a window opening 63 and a sliding door 62. One sheet of sweep window sheet 65 having a sheet opening 66 formed therein is attached to the sweep window 61.
(11B) is a sticking structure diagram of the sweep window sheet 65. By sweeping the sheet opening 66 of the sweep window sheet 65 so as to face the window opening 63 and fixing the periphery of the sweep window sheet 65 around the sweep window 61 with a clip 67, the sweep window It is possible to keep the interior and exterior of the building including 61 and the exterior wall surface 60 clean.
When the indoor antifouling walkway body 40 is composed of the extendable walkway body 43, the seat opening 66 is formed in substantially the same shape as the outlet opening 43b of the extendable walkway body 43. Then, the antifouling function in the above-floor room can be enhanced simply by connecting the outlet opening 43b of the telescopic walking path body 43 to the seat opening 66 so as to be connected thereto.
When the indoor antifouling walkway body 40 is the floor sheet 41 laid on the floor 5 from the entrances and exits 26, 42 of the opening antifouling device 2, the final end portion of the floor sheet 41. The floor sheet end 41a may be hung outward from the sheet opening 66 as the floor sheet end hanging portion 41. That is, one sheet 65 for the sweep window having the sheet opening 66 formed therein is prepared, and the sheet 65 for the sweep window is stretched so as to be aligned with the sweep window 61 of the building. The floor sheet 41 can be connected to the sheet opening 66 by fixing it around the sweep window 61 with a clip 67, and the floor indoor antifouling apparatus 1 used for underfloor work having an improved antifouling function is configured. can do.

FIG. 12 is a perspective view of another embodiment of the opening frame 10 according to the present invention.
In the rectangular parallelepiped opening antifouling device 2A, the substantially rectangular parallelepiped opening frame 10 includes an upper rectangular body 19A in which four horizontal tubes 13 are arranged in a rectangular shape, and four horizontal tubes 13. And the lower rectangular body 19B, which is arranged in a rectangular shape, are spaced apart from each other and are vertically opposed to each other.
At the four corners of the upper rectangular body 19A and the lower rectangular body 19B, four vertically connected vertical tubes 14 are erected to form a substantially rectangular parallelepiped. Next, the three-way joint 15 in which the joint holes 15a are formed in three directions is arranged at the eight corners of the substantially rectangular parallelepiped, and the two lateral pipes 13 are provided in the three-way joint holes 15a of each of the three-way joints 15. The end portion and the end portion of one vertical tube 14 are inserted and attached to form a strong substantially rectangular parallelepiped frame 10 for an opening. The left and right protection members 35, 35 are indicated by a chain line.
Therefore, the opening frame 10 including the rectangular parallelepiped opening antifouling device 2A is extremely strong, and can be arranged so as to cover the opening 4 by gripping the opening frame 10 with both hands. It's easy. Moreover, since it is heavy, it is difficult to move, and it does not roll, so there is an advantage that it can stably exist in a fixed position. Further, if it is arranged on the protection member 35, the floor surface is not damaged. Due to its weight, the cushioning property and the high friction property of the protection member 35, it does not move or roll on the floor surface, and is excellent in stability in position.

FIG. 13 is a joint connection diagram for explaining the connection state of the three-way joint 15, the vertical pipe 14, and the lower horizontal pipes 13, 13 shown in FIG. 12 in the present invention.
The three-way joint 15 is provided with three joint hole portions 15a, 15a, 15a corresponding to the X, Y, and Z directions. The horizontal pipes 13 and 13 are inserted into the joint holes 15a and 15a corresponding to X and Y, and the vertical pipes 14 are inserted into the joint hole 15a corresponding to Z. The three-way joint 15a facilitates the assembly of the opening frame 10 described above, and easily realizes a strong structure. Further, the connecting method may be insertion or screwing as long as it can be disassembled after being assembled.

FIG. 14 shows a combined state of the expandable and retractable annular cords 16 inserted in the four horizontal pipes 13 in the upper and lower stages and the extendable and retractable vertical cords 17 inserted in the four vertical pipes 14 in FIG. 12 of the present invention. FIG.
In the present embodiment, in the opening frame body 10 shown in FIG. 12, the four horizontal tubes 13 forming the upper rectangular body 19A and the four horizontal tubes forming the lower rectangular body 19B. It is characterized in that a stretchable cord is inserted into each of the vertical pipes 13 and the four vertical pipes 14 which are provided upright. Moreover, since these expansion and contraction strings are connected to each other in the eight three-way joints 15 so as to be expandable and contractable, the parts constituting the whole are assembled in a state in which they cannot be separated. That is, even when the horizontal pipes 13 and the vertical pipes 14 are removed from the eight three-way joints 15, the eight horizontal pipes 13 and the four vertical pipes 14 and the eight vertical pipes 14 are removed. The three-way joint 15 is in a substantially free state in which it cannot be separated and can be expanded and contracted by the elastic cords, and all the parts are connected to each other by the elastic cords so as not to be separated. Therefore, by mounting the eight horizontal pipes 13 and the four vertical pipes 14 on the eight three-way joints 15, the rectangular parallelepiped opening antifouling device 2A can be easily reassembled, There is an advantage that the best performance of the above-floor indoor antifouling apparatus 1 used in underfloor work can be performed easily and quickly.
More specifically, the elastic cords that are respectively inserted into the four vertical tubes 14 are the elastic vertical cords 17 in which elastic rings 17a are formed at the upper and lower ends, and the four elastic cords that form the upper rectangular body 19A. The elastic cord inserted into the lateral tube 13 is formed by one elastic ring cord 16 through which four elastic rings 17a above the four elastic vertical cords 17 are inserted, and constitutes the lower rectangular body 19B. The elastic cords that are inserted into the four horizontal tubes 13 are formed by one elastic ring cord 16 that inserts four elastic rings 17a below the four elastic vertical cords 17. Have.
Therefore, it is sufficient to insert one elastic ring 16 on the upper stage side through the four elastic rings 17a above the four elastic vertical cords 17, and on the lower side, one elastic ring 16 four. Since it is only necessary to insert the four elastic rings 17a below the elastic vertical cords 17, there is an advantage that the elastic cords can be easily connected to each other. Moreover, if the four upper elastic wheels 17a and the lower four elastic wheels 17a are housed in the eight three-way joints 15, the joints of the elastic cords cannot be visually recognized from the outside and the joints are unraveled by external force. There is no possibility of being scratched, and there is a feature that long-term durability can be maintained.

FIG. 15 is a perspective view showing a specific example of the three-way joint 15 shown in FIG. 12 in the present invention.
(15A) is a perspective view of the three-way joint 15 as viewed from the front side, in which screw portions 15b are formed around the three joint hole portions 15a. (15B) is a perspective view of the three-way joint 15 as viewed from the back side, and it can be seen that screw portions 15b are formed around the three joint hole portions 15a. Therefore, if the two horizontal pipes 13 and the one vertical pipe 14 are inserted into the three-way joint 15 and screwed with the tightening pipe 15c (shown in FIG. 16), the opening frame 10 is firmly assembled. be able to.

FIG. 16 is a specific configuration diagram of the opening frame 10 assembled using only one three-way joint 15 of FIG. 15 in the present invention.
It is clearly shown that the two horizontal pipes 13 and the one vertical pipe 14 are inserted into the three-way joint 15 at the lower front corner and screwed with the three tightening pipes 15c. Further, in the front corner on the upper side, the stretchable annular cord 16 and the stretchable vertical cord 17 exposed on the upper side of the vertical tube 14 are shown. The insertion state of the stretchable annular cord 16 and the stretchable vertical cord 17 is clearly shown in FIG. 18 described later. You can see that the whole is solidly assembled.

FIG. 17 is an enlarged view of a corner portion in which two horizontal pipes 13 and one vertical pipe 14 are connected by a three-way joint 15 in the frame 10 for openings shown in FIG. 16 of the present invention.
It can be seen that the three-way joint 15 is connected to the two horizontal pipes 13, 13 and the single vertical pipe 14 by the three fastening lids 15c. The tightening lid 15c does not loosen and disassemble by screwing, and the stability of the opening frame 10 and the device is guaranteed.

FIG. 18 is a view showing the opening frame 10 shown in FIG. 16 of the present invention, which includes an expandable annular cord 16 inserted into two horizontal pipes 13 and an extendable vertical cord 17 inserted into one vertical pipe 14. It is an expansion-contraction string connection figure which shows a connection state.
It can be seen that the telescopic ring 17a of the telescopic vertical cord 17 is arranged at the upper end of the vertical pipe 14, and the telescopic annular cord 16 for inserting the horizontal pipes 13, 13 passes through the telescopic ring 17a. Since the expandable ring 16 and the expandable ring 17a are engaged in a stretchable manner at the eight corners of the opening frame 10, all parts cannot be separated even if the joint by the three-way joint 15 is released. It can be understood that it is in a substantially free state.

19 is an assembly procedure diagram for assembling the opening frame 10 shown in FIG. 16 of the present invention.
In the first state diagram of (19A), a pipe group 18 consisting of eight horizontal pipes and four vertical pipes and one three-way joint are arranged in a folded state, and the end portions of the three pipes are located at the first corner 10A to 10A. It is arranged as the fourth corner 10D. In the second state diagram of (19B), the state where the second corner 10B and the third corner 10C are deployed forward is shown.
In the third state diagram of (19C), when the second corner 10B and the third corner 10C are opened to the left and right and the fourth corner 10D is moved to a symmetrical position with the second corner 10B, the whole is rearranged in a symmetrical shape. The state is shown. In the fourth state diagram of (19D), the second corner 10B and the fourth corner 10D are lifted upward to show a substantially rectangular parallelepiped three-dimensional state. Obviously, if this three-dimensional shape is turned over, the three-dimensional shape shown in FIG. 16 is formed.
The state (19A) shows the state of transportation from the warehouse to the site, and it can be seen that the transportation is easy because it is extremely compact. Further, when the parts arrive at the site, they do not separate even if they are separated, and the opening frame 10 can be assembled very easily and quickly from the state (19A) to the state (19D). it can.

It is needless to say that the present invention is not limited to the above-described embodiment, and includes various modifications, design changes, etc. within the technical scope of the present invention without departing from the technical idea of the present invention. Absent.

As described above in detail, the floor antifouling device used in the underfloor work according to the present invention, when performing underfloor work such as underfloor investigation, pest control and cleaning work, wiring work and various underfloor work, Keeps the floor room indoors clean by blocking dust and other dirt that comes out of the openings in the surface, and dust and dirt that is induced when an operator enters the floor room through the openings. A floor antifouling device can be provided.
Further, an antifouling device for an opening, which is covered with an enveloping film so as to surround the upper part of the opening, is provided, and an antifouling device for an opening that is durable and capable of completely blocking dust and the like is provided. Further, it is possible to provide an on-floor indoor antifouling device that connects an indoor antifouling walking path body to the opening antifouling device and keeps the entire area of the above-floor room clean. Further, the present invention provides an on-floor indoor antifouling device that further extends the antifouling function in the above-floor room by laying a sheet for an outflow window in conformity with the sweep window of a building.

1 Floor Indoor Antifouling Device 2 Opening Antifouling Device 2A Rectangular Rectangular Opening Antifouling Device 2B Loop Opening Antifouling Device 2c Connection Hole 3 Worker 4 Opening 5 Floor 6 Floor around Opening 10 Frame for opening 10A First corner 10B Second corner 10C Third corner 10D Fourth corner 11 Rectangular frame 11a Rectangular frame hole 12 Connecting rod 12a Connecting rod projection 13 Horizontal pipe 14 Vertical pipe 15 Three-way joint 15a Joint hole 15b Screw part 15c Tightening lid 16 Telescopic annular cord 17 Telescopic vertical cord 17a Telescopic ring 18 Telescopic ring 18 Pipe group 19A Upper rectangular body 19B Lower rectangular body 20 Enclosing film 21 Lower end opening 22 Side film 23 Top film 24 Opening film 25 Opening film piece 26 Entry/exit 27 Front Film 30 Opening Surrounding Sheet 31 Inner End Piece 35 Protective Member 36 Floor Material 37 Side Material 40 Indoor Antifouling Pedestrian Body 41 Floor Sheet 41a Floor Sheet Edge 41b Floor Sheet Edge Droop 42 Doorway 43 Expansion/contraction walkway body 43a Entrance opening 43b Exit opening 44 Upright loop frame body 44a Loop part 44b Upright loop frame body hole 45 Connecting rod 45a Connecting rod projection 46 Floor film 47 Peripheral film 48 Magnet 50 Conduit 50a Insert end 50b Receiving end 50c Locking button 50d Locking hole 51 Long member 60 Building outer wall surface 61 Sweep window 62 Sliding door 63 Window opening 65 Sweeping window seat 66 Seat opening 67 Clip 66 Seat opening A Kitchen device

Claims (16)

It is an on-floor indoor antifouling device that prevents the above-floor room from being contaminated with dust or the like when performing underfloor work in a building, and an opening that is opened on the floor surface for workers to enter and exit below the floor, and An opening antifouling device that is arranged so as to surround the upper side of the opening, and the opening antifouling device is an opening frame that is arranged on a floor surface surrounding the opening surrounding the opening. A body, an enclosing film surrounding the space surrounded by the frame for the opening so as to surround the upper portion of the opening, and an opening or a releasably provided entrance on one surface of the enclosing film, An on-floor indoor antifouling device used in underfloor work, characterized in that it goes in and out of the opening through the entrance and exit to perform underfloor work. A sheet around the opening is laid on the floor around the opening, and one or more protective members for protecting the floor are arranged on or near the sheet around the opening, and the sheet for the opening is provided on the protective member. The on-floor indoor antifouling device used for underfloor work according to claim 1, wherein a frame body is arranged to configure the opening antifouling device on the protective member to protect a floor surface. The on-floor indoor antifouling apparatus used for underfloor work according to claim 1 or 2, wherein an indoor antifouling walkway is provided on the floor surface from the vicinity of the doorway formed in the opening antifouling apparatus. 4. The antifouling function is enhanced by continuously hanging an inner end piece inward of the opening from the sheet around the opening, or bending the inner end piece to the back side of the floor surface. Above-floor indoor antifouling device used in the underfloor work described. The antifouling device for the opening is a rectangular parallelepiped opening antifouling device assembled in a rectangular parallelepiped shape, and the rectangular parallelepiped opening antifouling device has a substantially rectangular parallelepiped opening frame and a substantially rectangular parallelepiped shape. The surrounding film is composed of the surrounding film, and the surrounding film is composed of six faces of a substantially rectangular parallelepiped shape, has a lower end opening with a lower end face opened, and the front face has a front opening to form the entrance or exit, or A front film is provided, and an opening cut line is formed in the front film in a substantially L-shape, a substantially square shape, or a substantially U-shape, and the opening film line is cut to cut an open film piece or hang it forward. Or, when rolled up, the entrance is formed to be open, and the surrounding film is covered from the lower end opening to the opening frame to constitute the rectangular parallelepiped opening antifouling device. An on-floor indoor antifouling device used for underfloor work according to any one of 1. In the rectangular parallelepiped opening antifouling device, the opening frame includes two rectangular frames having rectangular frame holes at four corners and four connecting rod projections protruding at left and right ends. The two rectangular frames are arranged so as to face each other in the state of being separated from each other, and the four connecting rods are horizontally provided at four corners between the rectangular frames. The on-floor indoor antifouling device used for underfloor work according to claim 5, wherein connecting rod projections are respectively inserted into the rectangular frame holes of the left and right rectangular frames to form a rectangular parallelepiped shape. In the rectangular parallelepiped opening antifouling device, the rectangular parallelepiped opening frame has an upper rectangular body in which four horizontal tubes are arranged in a rectangular shape and four horizontal tubes in a rectangular shape. The lower rectangular body, the upper rectangular body and the lower rectangular body are spaced apart from each other and are vertically opposed to each other, and four vertical pipes that vertically connect the four corners of the upper rectangular body and the lower rectangular body are provided upright. Forming a substantially rectangular parallelepiped, and arranging three-way joints in which joint holes are formed in three directions at eight corners of the substantially rectangular parallelepiped, and ends of two lateral pipes in the three-way joint holes of each of the three-way joints. 6. The above-floor indoor antifouling device used in underfloor work according to claim 5, which is configured as a strong rectangular parallelepiped by inserting and attaching the end portion of the vertical section and one vertical tube. In the opening-portion frame body formed in a substantially rectangular parallelepiped, the four horizontal tubes forming the upper rectangular body, the four horizontal tubes forming the lower rectangular body, and the four standing tubes An expansion cord is inserted into each of the vertical pipes, and the expansion cords are connected to each other in the three three-way joints so that they can expand and contract. When the vertical pipes are pulled out, the eight horizontal pipes, the four vertical pipes, and the eight three-way joints are inseparable and expandable by the elastic cords, and are in a substantially free state, and the rectangular parallelepiped shape is provided. The on-floor indoor antifouling apparatus used in underfloor work according to claim 7, wherein the opening antifouling apparatus can be easily assembled. In the rectangular parallelepiped frame for openings, the elastic cords that are respectively inserted into the four vertical tubes are elastic vertical cords having elastic rings formed at the upper and lower ends, and the four elastic cords constituting the upper rectangular body are formed. The expandable cord inserted into the lateral pipe is formed by one expandable annular cord that inserts the four expandable rings above the four expandable vertical cords, and the four expandable cords that form the lower rectangular body. 9. The underfloor work according to claim 8, wherein the elastic cord inserted through the lateral pipe is formed by a single elastic ring string through which four elastic rings below the four elastic vertical cords are inserted. Floor indoor antifouling equipment used. The opening antifouling device is a loop-shaped opening antifouling device assembled in a loop shape, and the loop-shaped opening antifouling device is a loop-shaped opening frame and the loop-shaped surrounding. The opening-shaped frame body, which is made of a film and has a loop shape, is provided with two upright-shaped upright loop frame bodies each having a loop portion above and having a height at which an operator can walk. The two upright loop frame bodies are connected to each other so as to be separated from each other by a connecting rod so as to enclose the part and are arranged to face each other, and the surrounding film is composed of four surfaces of a back surface, a front surface, a peripheral surface, and a lower end surface, The lower end surface is opened and has a lower end opening, and the front surface is formed so as to be openable to form an entrance and exit for workers to enter and exit. A back surface film for sealing a back surface and a peripheral surface including the two loop parts are provided. An on-floor indoor antifouling device used in underfloor work according to any one of claims 1 to 4, which is composed of at least a peripheral film to be sealed. The indoor antifouling walkway body is composed of an extendable walkway body continuously placed on the floor from the entrance of the opening antifouling device, and the extendable walkway body has a loop portion above. Two or more upright-shaped upright loop frame bodies having a height that allows a worker to walk are connected to each other in a separated state, and the upright loop frame body has a plurality of upright loop frame body holes. It is installed, and the space between all two adjacent upright loop frames is sealed by a bottom film and a peripheral film, and all upright loop frames are open so that workers can walk, The side is an inlet opening and the outlet side is an outlet opening.When not in use, all the upright loop frames are adjacent to each other in a compressed state to reduce the volume, and in use, the adjacent upright loop frames are connected to each other by connecting rods. The on-floor indoor antifouling device used for underfloor work according to any one of claims 3 to 10, which is used as a walkway body by being connected in a spaced-apart shape and expanding in volume. Prepare one sheet for the sweep window with the sheet opening formed, and stretch the sheet for the sweep window to the sweep window of the building, and fix the periphery of the sheet for the sweep window around the sweep window Then, the seat opening is formed in substantially the same shape as the exit opening of the telescopic walking path body, and the exit opening of the telescopic walking path body is connected to the seat opening to enhance the antifouling function in the floor room. The above-floor indoor antifouling device used in the underfloor work according to claim 11. The above-mentioned indoor antifouling walkway body is a floor sheet laid on a floor from an entrance of the antifouling device for an opening to a floor surface. Antifouling device. Prepare one sheet for the sweep window with the sheet opening formed, and stretch the sheet for the sweep window to the sweep window of the building, and fix the periphery of the sheet for the sweep window around the sweep window The floor indoor antifouling device used in underfloor work according to claim 13, wherein the floor sheet is connected to the sheet opening to improve the antifouling function. Prepare a telescopic conduit having an insertion end on the front end side and a receiving end on the rear end side, and the telescopic conduit can be expanded and contracted to adjust the length, and a long member is inserted into the telescopic conduit. Let
The underfloor according to any one of claims 1 to 14, wherein the insertion end is connected to the opening antifouling device, and the long member is introduced under the floor through the opening on the floor to support underfloor work. Floor indoor antifouling device used in work. Two or more telescopic conduits each having a locking button at the insertion end and a locking hole at the receiving end are prepared, and the insertion end of one expansion conduit is the receiving end of the other expansion conduit. To lock the lock button into the lock hole and connect them inseparably, and repeat this to introduce even the long member of arbitrary length from the floor opening to under the floor for underfloor work. The above-floor indoor antifouling device used for underfloor work according to claim 15, which is capable of being assisted.