JP7129787B2 - Wall covering device and method - Google Patents

Description

The present invention relates to an apparatus and method for blind-coating a wall surface, such as a concrete wall surface, during repair.

When repairing the concrete wall surface of a tunnel such as a subway, there is a period of time during which the reinforcing bars are exposed on the wall surface after the existing frame is scraped off and before the concrete is sprayed again. Particularly in a subway station, if left in this state, the reinforcing bars exposed from the platform can be seen, which is unattractive and sometimes arouses the anxiety of subway users.

Therefore, conventionally, in order to hide the repaired area, multiple sheets were prepared to cover the repaired area, and anchors for fixing the sheet were provided on the upper part such as the haunch part of the tunnel and the lower part such as the floor. Workers used scaffolding to install and remove the sheets each time.

Conventionally, a roll-type sheet winder has been used in a store or the like to place a plurality of sheets adjacent to each other to hide the interior from customers (see, for example, Patent Document 1).

JP 2008-163726 A

However, the tunnel repair work of the subway can only be done in a short time from the last train to the first train of the subway, and it takes a long time to install and remove the sheet, so the number of days required for the repair work becomes longer. There was a problem that many workers were required.

SUMMARY OF THE INVENTION In view of the above points, it is an object of the present invention to provide a wall surface covering apparatus and method capable of installing and removing a sheet for blinding a wall surface such as a concrete wall surface under repair in a short period of time. do.

The wall surface covering device of the present invention comprises a sheet capable of covering a wall surface, a winding member connected to the upper part of the sheet and capable of winding the sheet into a roll, and rotatably supporting the winding member. and a plurality of sheet winders attached to the wall surface, wherein the sheet winders are mounted adjacent to each other in the width direction of the sheet, wherein the installation positions of the support members are in the vertical direction. and shifted in the front-rear direction.

According to the wall surface covering apparatus of the present invention, an operator can easily feed and wind the sheet by rotating the winding member. As a result, it is possible to shorten the time required to install and remove the sheet that blinds the wall surface to be repaired, compared to the conventional method. Furthermore, since the supporting members are installed at different positions in the vertical direction and the front-rear direction, interference between the supporting members in adjacent sheet winders can be avoided, and the occurrence of lateral gaps between the fed sheets can be prevented. It becomes possible to plan

In the wall surface covering apparatus of the present invention, in the sheet winders installed adjacently, the sheet winder having the support member installed at the front unwinds the sheet at the rear side of the winder member. It is possible, and it is preferable that the sheet winding machine in which the support member is installed at the rear side can let out the sheet from the front side of the winding member.

In this case, it is possible to reduce the gap in the front-rear direction between the adjacent sheets.

Further, in the wall surface covering device of the present invention, a means to be engaged is provided at a lower portion of the sheet, and the engaging means for engaging the means to be engaged in a state in which the sheet is drawn out is a lower portion of the wall surface or a It is preferably provided in front of the lower part.

In this case, it is possible to prevent the sheet from being turned up.

Further, the wall surface covering apparatus of the present invention further comprises restricting means for restricting the forward movement of the sheet in the unwound state , wherein the plurality of restricting means are respectively provided for all the sheet winders of the plurality of sheet winders. Transversely across the seat, it is located in front of said seat .

As a result , forward movement of the seat can be restricted, so that contact of the seat with other objects can be suppressed.

The wall surface covering method of the present invention includes a sheet capable of covering a wall surface, a winding member connected to the upper part of the sheet and capable of winding the sheet into a roll, and rotatably supporting the winding member. A plurality of sheet winders each having a supporting member and a means to be engaged provided at the bottom of the sheet, and attached adjacent to each other in the width direction of the sheet. Each of the plurality of sheet winders is attached to the wall surface in a staggered manner, each sheet of the plurality of sheet winders is fed out, and each of the locked means is locked to the locking means provided at the bottom or in front of the bottom of the wall surface. and each of the plurality of restricting means is positioned in front of the sheet, transversely across all the sheets of the plurality of sheet winders.

According to the wall surface covering method of the present invention, an operator can easily feed and wind the sheet by rotating the winding member. As a result, it is possible to shorten the time required to install and remove the sheet that blinds the wall surface to be repaired, compared to the conventional method. Furthermore, since the supporting members are installed at different positions in the vertical direction and the front-rear direction, interference between the supporting members in adjacent sheet winders can be avoided, and the occurrence of lateral gaps between the fed sheets can be prevented. It becomes possible to plan

1 is a schematic front view of a wall covering device according to an embodiment of the present invention; FIG. The top conceptual side view of a wall surface covering apparatus.

A wall covering device 100 according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG.

The wall covering device 100 is a device for covering and hiding the repaired wall surface when repairing the concrete wall surface A of an underground railroad structure or the like to prevent it from being seen from the surroundings. Here, a case of using the wall surface covering device 100 for repairing a concrete wall surface A of a subway station will be described.

However, the wall covering device 100 is not limited to those used in railway stations such as subways, tunnels, etc. For example, the wall covering device 100 is not limited to those used in underground structures such as tunnels of automobile roads, the walls of which can be visually recognized by people. It may be used against Particularly in stations, railway passengers often see the tunnel wall surface from the platform while waiting for a train.

Furthermore, the wall covering apparatus 100 is not limited to use in underground structures with covered ceilings, but in structures that are not completely covered at the top and are at least partially open. can be anything.

The repair wall covering device 100 includes a sheet 11 capable of covering a wall surface to be repaired, a winding member 12 connected to the upper part of the sheet 11 and capable of winding the sheet 11 into a roll, and the winding member 12 being rotatable. It has a plurality of sheet winders (winders) 10 each provided with a support member 13 for supporting the sheet. A commercially available one can be used as the sheet winder 10 .

The material of the sheet 11 is not limited as long as it is opaque so that the covered wall surface to be repaired cannot be seen from the front and is strong enough not to be easily damaged even if it rubs against the wall surface to be repaired.

The sheet 11 here has a rectangular shape, and one side of its upper end is fixed to the take-up member 12 . Although not shown, it is preferable that both side portions and a lower end portion of the sheet 11 are formed with folded portions by folding to improve the strength.

The take-up member 12 is a cylindrical member here, and is rotatably supported by a round-bar-shaped support member 13 inserted therein. The take-up member 12 has an engaged portion (not shown) that can be engaged with and disengaged from an engaging portion provided at the tip of the long handle. As a result, a worker or the like standing on the track surface of a station can easily pay out and wind up the sheet 11 by operating the handle to rotate the winding member 12 without using a scaffolding. becomes.

The supporting member 13 has fixing portions 14 fixed to anchors or the like fixed to the concrete wall surface A at both ends thereof. The fixing portions 14 are positioned outside from both ends of the take-up member 12 . The fixing part 14 is, for example, box-shaped, although not shown, and has a through hole formed in the fixing surface to the concrete wall surface A. An anchor, which is the fixing part 14, is inserted through the through hole and fastened with a nut. Anything that can be done is acceptable.

In FIG. 1, there are three sheet winding machines 10 for the sake of simplification, but the number of sheet winding machines 10 is determined according to the length of the concrete wall surface A in the repair range that needs to be covered. Alternatively, it may be determined according to the length of the concrete wall surface A that is visible to subway users from the platform.

An engaged member 15 is attached to the lower portion of the seat 11 . The engaged member 15 is, for example, an annular metal fitting, and engages with an engaging member 21 such as a hook provided at the bottom of the concrete wall surface A or at the inner part of the track surface. By the engagement between the engaged member 15 and the engaging member 21, it is possible to prevent the sheet 11 from being turned up due to wind pressure or the like when a train passes. The engaged member 15 corresponds to the engaged means of the present invention, and the engaging member 21 corresponds to the engaged means of the present invention.

When such a wall surface covering device 100 is used, a worker or the like can easily feed and wind the sheet 11 by operating the sheet winder 10, and the wall surface to be repaired can be covered more easily than before. Since the time required for repair work can be shortened, it is possible to secure sufficient time for substantial repair work.

When the sheet winders 10 are installed at the same height, a gap is generated between the fed sheets 11 in order to avoid interference between the supporting members 13 of the adjacent sheet winders 10 . However, in this case, the repaired wall surface can be visually recognized by subway users through the gap, and the blind function is not sufficiently exhibited. Therefore, in order to solve such a problem, it is necessary to prevent the gap from occurring between the sheets 11 .

Therefore, it is necessary that the left and right side edges of the sheet 11 overlap each other or that the left and right side edges of the sheet 11 are exactly adjacent to each other so as not to create a gap between the adjacent sheets 11 . be.

Therefore, in order to prevent the support members 13 from interfering with each other, the adjacent sheet winders 10 are installed at different heights, and the positions of the sheet winders 10 in the front-rear direction (the direction from the tunnel wall toward the platform) are different. need to let That is, in the sheet winder 10 that is installed adjacent to the sheet 11 in the width direction (the direction in which the railroad tracks extend, the left-right direction in FIG. 1), the installation position of the support member 12 is shifted in the vertical direction and the front-rear direction. As a result, the adjacent sheets 11 are also offset in the front-rear direction, making it easy to overlap the side edges in the lateral direction.

Specifically, the support member 12 of the sheet winding machine 10 is formed on an inclined surface B which is located on the upper part of the concrete wall surface A such as the haunch portion and which is inclined upward toward the near side (the platform side, the left direction in FIG. 2). ,is set up. As a result, the sheet winder 10A, which is positioned relatively upward, is positioned relatively toward the front (front), and the sheet winder 10B, which is positioned relatively downward, is positioned relatively toward the back (rear). It will be.

Although the support members 12 of the sheet winders 10A and 10B are the same here, the support members 12 of the sheet winders 10A and 10B may be different. As a result, even if the support member 12 is installed on a vertical concrete wall surface A or a ceiling surface instead of the inclined surface B, the installation positions of the sheet winders 10A and 10B can be shifted in the vertical direction and the front-rear direction. . Also, the sheet winder 10 may be installed at three or more different positions in the vertical direction or the front-rear direction.

Further, the winding direction of the adjacent sheet winding machines 10 is relatively upward, i.e., relatively forward. In the sheet winding machine 10B positioned relatively downward, i.e., relatively rearward, so as to perform winding and winding, the sheet 11 is reeled out and wound on the rear side of the winding member 13. It is preferable to determine the winding direction of the sheet 11 in the take-up member 12 . As a result, the space between the adjacent sheets 11 in the front-rear direction can be reduced, and it is possible to effectively prevent the repaired wall surface from being seen through the space between the sheets 11 .

In this case, in the sheet winder 10A positioned relatively upward, when feeding the sheet, the winder member 12 is rotated counterclockwise as indicated by the solid arrow in FIG. In the sheet winder 10B positioned at the bottom, when feeding the sheet 11, the winding member 12 is rotated clockwise as indicated by the dotted arrow in FIG. 13 rotates in the opposite direction.

Furthermore, the wall surface covering device 100 further prevents the sheet 11 from being turned up from the side or the bottom by the wind pressure from a passing train, etc., so that the repaired wall surface can be seen. A restricting means 22 for restricting movement is provided.

As the restricting means 22, a rope 22 located in front of the plurality of sheets 11 is stretched across the sheets 11 in the horizontal direction. Both ends of the rope 22 are fixed using fixtures 23 such as anchors provided on the concrete wall surface A. As shown in FIG. And it is preferable that the ropes 22 are plural. Also, a belt or belt-like net may be used instead of the rope 22 .

Conventionally, when installing the sheet 11, the entire sheet 11 was sometimes covered with a net. However, in this embodiment, a roll-type sheet winder 11 is used, and it is physically impossible to wind the sheet 11 and the net at the same time in consideration of the wind pressure resistance strength. However, if the entire sheet 11 is covered with a net, the effect of shortening the working time cannot be obtained. The inventors have confirmed that stretching a plurality of ropes provides the same anti-turnover effect as when the entire sheet 11 is covered with a net.

However, instead of passing the plurality of sheets 11 by the rope 22 or the like across them, the rope 22 or the like may be used to suppress the turning over of each sheet 11 .

Further, the wall surface covering device 100 preferably includes separation suppressing means 24 to suppress the formation of gaps between the adjacent sheets 11 due to the separation thereof. Here, the separation suppressing means 24 has a through-hole 11a formed in the side end of each sheet 11, and a binder 24 such as a rope or metal fitting that is inserted through the through-holes 11a of the adjacent sheets 11 and bound together. be.

In the wall surface covering method according to the embodiment of the present invention, the wall surface covering device comprises a plurality of sheet winders 10 each having the support members 12 mounted on the concrete wall surface A with vertical and longitudinal displacements as described above. 100.

In this method, each sheet 11 is fed out from a plurality of sheet winders 10, and each engaged member 15 is engaged with an engaging member 21 to cover the repair surface with a plurality of sheets 11. .

The present invention is not limited to the wall surface covering apparatus 100 and the method using the apparatus specifically described in the above embodiment, and can be appropriately modified within the scope of the claims. can be done.

DESCRIPTION OF SYMBOLS 10, 10A, 10B... Sheet winding machine 11... Sheet 11a... Through hole 12... Winding member 13... Supporting member 14... Fixed part 15... Engaged member (engaged means) 21 ... Engaging tool (locking means), 22... Regulating means, rope, 23... Fixing tool, 24... Binding tool, 100... Wall covering device, A... Concrete wall surface, B... Inclined surface.

Claims (4)

A sheet capable of covering a wall surface, a winding member connected to the upper part of the sheet and capable of winding the sheet into a roll, and a supporting member rotatably supporting the winding member, a plurality of sheet winders attached to the wall surface ; and a plurality of restricting means for restricting forward movement of the sheet in the unwound state ;
In the sheet winder mounted adjacent to the sheet in the width direction, the installation position of the support member is displaced in the vertical direction and the front-back direction ,
A wall covering device , wherein each of said plurality of restricting means is positioned in front of said sheet across all of said sheets of said plurality of sheet winders in the lateral direction . Among the adjacently mounted sheet winders, the sheet winder in which the supporting member is installed at the front side can unwind the sheet from the rear side of the winding member. 2. The wall surface covering device according to claim 1 , wherein the sheet winder installed at the rear side can let out the sheet from the front side of the wind-up member. A locked means is provided on the lower part of the seat,
4. The seat according to any one of claims 1 to 3, wherein locking means for locking the locked means when the seat is extended is provided at a lower portion of the wall surface or in front of the lower portion. Wall covering device as described. a sheet capable of covering a wall surface; a winding member connected to an upper portion of the sheet and capable of winding the sheet into a roll; a support member rotatably supporting the winding member; A plurality of sheet winders each having a locking means provided at the bottom and attached adjacently in the width direction of the sheet are attached to the wall surface such that the support members are displaced in the vertical direction and the front-rear direction. cage,
unwinding each of the sheets of the plurality of sheet winders and locking each of the locked means with locking means provided at the bottom or in front of the bottom of the wall surface;
A wall covering method, wherein a plurality of restraining means are each positioned in front of said sheets transversely across all said sheets of said plurality of sheet winders.

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