JP2007009634A - Simplified partition wall - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To stably install a simplified partition wall on a wall surface or in a space where an obstacle is placed. <P>SOLUTION: The simplified partition wall 100 partitions the space having a rod-like obstacle between a ceiling surface and a floor surface or between facing wall surfaces. The partition wall 100 comprises; a wall panel 30; a pole 10 including a telescopic rod member and an urging means for urging the telescopic rod member in a direction of its extension so that the rod member may bridge the space between the obstacle and the ceiling surface, the floor surface or the wall surface for supporting by the urging force of the urging means; a pair of facing beam members 12a, 12b fitted to both ends of the pole 10 in a direction perpendicular to the pole 10 and provided with a pressing spring 16 to detachably sandwich and support the wall panel 30; and an engaging means 60 mounted on at least one of the beam members 12a, 12b in a manner that the engaging means 60 may be horizontally movable and horizontally rotatable on the beam members 12a, 12b and be engaged with the obstacle. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a simple partition wall, and more particularly, to a simple partition wall suitable for use in curing in renewal work such as building facilities.

  Building facilities and the like are usually renewed with a period of 15 to 20 years for the purpose of deterioration over time, application change, multifunctionalization, and the like. Most of the renewal work is performed within a limited time, for example, on a company holiday, and after that work has to be restored. For this reason, it was necessary to cure a predetermined floor surface or wall with a plywood board or a vinyl sheet before the work, and after the work, dismantle the curing and clean a room or a passage used for the work. Further, when there is no wall to which a curing plywood or vinyl sheet is attached, a partition wall is simply formed in order to block the working space from the non-working space. Conventionally, this partition has been formed by forming a wall frame using a pipe or wood for scaffolding, and attaching vinyl or a veneer board to the wall frame.

  However, the conventional partition wall has a drawback that it requires a skillful technique to form the wall frame, and it takes time to form the partition wall. In many cases, the partition wall is attached with a plywood plate attached to the wall frame. However, in this case, the plywood plate is damaged and cannot be reused, resulting in an increase in the cost of the partition wall.

  Conventionally, since the partition wall has the above-described drawbacks, a curing method for curing a predetermined wall surface or floor surface without using the partition wall as much as possible has been common. For this reason, the range to be cured in a corridor used as a conveyance path for construction supplies and the like is widened, and there is a problem that a great amount of work time is required for assembling / disassembling work and cleaning work.

As means for solving these problems, Patent Document 1 and Patent Document 2 disclose a simple partition wall including a column whose height is adjustable and a beam member that fixes a sheet-like wall member. According to this, it is described that a simple partition wall can be easily assembled at low cost regardless of the height of the ceiling.
JP 2000-120275 A JP 2004-107986 A

  However, in Patent Documents 1 and 2, in the case of a ceiling surface on which an obstacle such as a pipe or a duct is arranged, the contact surface with the simple partition wall (beam member) is reduced, so that the simple partition wall is stabilized. There was a problem that it could not be fixed and installed.

  The present invention has been made in view of such circumstances, and a simple partition wall that can be stably installed even in a wall surface on which an obstacle is arranged or in a space where an obstacle exists between opposing wall surfaces. The purpose is to provide.

  In order to achieve the above object, claim 1 of the present invention provides a simple partition wall for partitioning a space portion having a bar-shaped obstacle between a ceiling surface and a floor surface or between opposing wall surfaces. A telescopic bar member and a biasing means for biasing the bar member in the extending direction, and the bar member is placed on the obstacle, the ceiling surface, the floor surface or the wall surface by a biasing force of the biasing means. And a pair of opposing members each provided with a support member that is supported between the support member and a support member that is attached to both ends of the bar member in a direction orthogonal to the bar member and that detachably supports the wall plate. And an engaging means provided on at least one of the pair of beam members and capable of horizontally moving and rotating on the beam members and engaging the obstacle. A simple partition wall is provided.

  Conventionally, since a simple partition wall has been substantially in contact with and supported by a ceiling surface or a wall surface, for example, between a ceiling surface (ceiling surface other than a plane) on which an obstacle such as a pipe or a duct is disposed and a floor surface When the simple partition wall was handed over, the area (contact area) where the obstacle and the simple partition wall engage was small. For this reason, it has been difficult to pass a simple partition wall between a ceiling surface or a wall surface other than a flat surface and a floor surface, or where a pipe is provided in the space.

  According to the present invention, at least one of the pair of beam members of the simple partition wall is provided with engaging means capable of horizontal movement and horizontal rotation. As a result, when obstacles such as pipes or ducts are arranged on the ceiling or wall surface and / or when obstacles exist in the space, the obstacle The area with which the simple partition wall engages can be increased. Therefore, a simple partition wall can be passed stably.

  A second aspect of the present invention is characterized in that, in the first aspect, the rod-like obstacle is a pipe and / or a duct.

  According to a third aspect of the present invention, in the first or second aspect, the engaging means includes a horizontal movement track formed in a longitudinal direction on the beam member, a slide member that slides on the horizontal movement track, and the slide member. And an engaging tool that is supported in a horizontally rotatable manner and has an engaging surface that engages with the obstacle having a concave cross section.

  The third aspect specifically explains the structure of the engaging means of the first aspect. According to the second aspect, the engagement means can be moved or rotated to be engaged with the obstacle according to the arrangement direction or position of the obstacle such as the pipe or the duct. Therefore, the simple partition wall can be handed over easily and stably even on the wall surface or space where the obstacle is arranged. Further, the cross-sectional shape of the concave portion of the engaging means includes a substantially semicircular shape, a substantially U-shape, and the like, and a shape that can engage a cylindrical obstacle such as a pipe or a duct is particularly preferable. Further, the engaging means can be replaced corresponding to the shape and size of the pipe or duct. Further, the edge of the upper end of the engaging means is substantially flat, and when the two engaging means are used facing each other, the two engaging means are stably fixed to each other. It is configured to be able to. Further, the horizontal movement track may be, for example, a rail shape formed on the upper surface of the beam member, but is not limited thereto. Also, the slide member is not particularly limited as long as it can move along the above-described rail.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, a square plate-like partition auxiliary wall having an opening surrounding the obstacle is provided at a central portion of the simplified partition wall, and the partition auxiliary wall Is detachably supported by the beam member, and swingable with a pair of support shafts having a support plate having a recess serving as a part of the opening and a symmetrical position across the recess of the support plate. And a pair of swing plates each having a recess that becomes the remaining portion of the opening after swinging, and the pair of swing plates supports the obstacle in the recess of the support plate. When the obstacle is brought into contact, it swings around the support shaft as a result.

  The fourth aspect explains the structure of the partition auxiliary wall that closes (hardens) the gap formed between the obstacle and the simple partition wall.

  According to the fourth aspect, the partition auxiliary wall that can swing (open and close) is attached to the side surface of the beam member on the ceiling surface side where an obstacle such as a pipe or a duct is arranged. Then, when the partition auxiliary wall in the open state is pressed against a pipe or duct on the ceiling surface, the two swing plates swing, and an opening that surrounds the pipe or duct is formed at the center (this opening) Is formed by combining the recesses of the support plate and the recesses of the two swing plates). Therefore, it is possible to easily close a gap formed around a pipe or a duct and to stably fix the simple partition wall to the wall surface or space where the pipe or the duct is arranged. Further, dust scattered in the work space does not leak into the non-work space from gaps formed around pipes or ducts, and contamination of the non-work space can be reliably prevented. Moreover, since the partition auxiliary wall is detachable, the use or non-use of the partition auxiliary wall can be selected according to the arrangement direction, position, and diameter size of an obstacle such as a pipe or a duct.

  As described above, according to the present invention, a simple partition wall can be stably installed even in a wall surface on which an obstacle is arranged or a space where an obstacle exists between opposing wall surfaces.

  Hereinafter, preferred embodiments of a simple partition wall according to the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a diagram for explaining the overall configuration of a simple partition wall 100 according to the present invention, FIG. 2 is an exploded perspective view for explaining a part of the components shown in FIG. 1, and FIG. ) 10 is a perspective view for explaining the connecting member 18. 4 is an arrow view of the engaging means 60 of FIG. 1 as viewed from the direction of the arrow A, and FIG. 5 is a side view for explaining the mounting state of the wall plate 30 using the pressing spring 16.

  As shown in FIGS. 1 and 2, the simple partition wall 100 mainly includes a pole (post member) 10 that supports and supports an obstacle between a ceiling surface, a floor surface, and a wall surface, and poles 10 at both ends of the pole 10. The beam members 12a and 12b are connected to each other in an orthogonal direction, the engaging means 60 is capable of horizontally moving and rotating on the upper beam member 12a, and the wall plate 30. The beam members 12a and 12b are formed in an L shape, and are provided with three pressing springs 16, 16, and 16 and a connecting member 18.

  3 is attached to the center of the beam members 12a and 12b by a fixing screw (not shown), for example, and has a hole 20 for a pole into which the tip of the pole 10 is inserted. The connecting member 18 is provided with a lock button hole 22 that is inserted into the pole hole 20, and a lock button 24 that will be described later protrudes and fits when the tip of the pole 10 is inserted into the pole hole 20. It is configured as follows.

  The pole 10 mainly includes an outer cylinder 36, a rod 38 attached to an end of the outer cylinder 36, and an inner cylinder 40. The inner cylinder 40 is slidably supported by the outer cylinder 36 and is fixed by fastening a fixing screw 42 attached to the outer cylinder 36. Therefore, the pole 10 can be adjusted to a predetermined length by sliding the inner cylinder 40 to the outer cylinder 36 and fastening the fixing screw 42.

  Further, the rod 38 includes an elastic body (not shown) such as a spring therein, and is configured to apply a biasing force in the extending direction of the pole 10. Therefore, when the pole 10 is disposed between a pair of opposing surfaces in a state in which the pole 10 is contracted, the pole 10 can be provided and supported by the biasing force in the extending direction of the pole 10.

  In addition, lock buttons 24 are provided at the distal ends of the rod 38 and the inner cylinder 40, respectively. The lock button 24 is provided in the rod 38 or the inner cylinder 40 so as to be able to protrude and retract, and an elastic body (not shown) such as a spring is incorporated therein, and is normally maintained in a protruding state. Therefore, when the lock button 24 is pushed from outside to be inserted and the tip of the pole 10 is inserted into the pole hole 20 of the connecting member 18, the lock button 24 protrudes when the lock button 24 and the lock button hole 22 are aligned. It fits into the lock button hole 22. Thereby, the beam members 12a and 12b and the pole 10 can be connected.

  A close contact member 34 is formed on the floor surface side of the lower beam member 12b. The contact member 34 is made of a material having elasticity such as sponge, and the material is preferably urethane. In addition, a heat insulating material for piping, a thin rubber sheet such as neoprene can be used. Thereby, a floor surface and the beam member 12b can be stuck.

  The engaging means 60 in FIG. 4 is provided so as to be rotatable in the horizontal direction, and engages with an engaging tool 62 that engages with a pipe or a duct or the like, and a rail 13 (horizontal movement track) formed in the longitudinal direction of the upper beam member 12a. 1 and 2), and a slide member 15 that slides on the rail 13. As shown in FIG. 4, the cross-sectional shape of the engaging tool 62 is a semicircular concave shape, and is formed into a shape that engages a pipe or a duct disposed on the ceiling surface. Further, the engaging tool 62 is rotatably supported on the slide member 15. Thereby, the engagement tool 62 can be horizontally moved and rotated in the longitudinal direction of the upper beam member 12a in accordance with the position or orientation of a pipe or a duct.

  A buffer material 64 is formed inside the engagement tool 62. Thereby, when the tip of the engagement tool 62 is brought into contact with the ceiling surface on which the pipe or duct is arranged, the buffer or the like can be brought into close contact with the engagement tool 62. Further, since the shock when the buffer material 64 is brought into contact is absorbed, damage to the surface of the pipe or the duct can be prevented.

  The material of the buffer material 64 is a material having elasticity such as sponge, and urethane is particularly preferable, but is not limited thereto. In addition, a heat insulating material for piping, a thin rubber sheet such as neoprene can be used.

  Moreover, the cross-sectional shape or size of the recessed part of the engaging tool 62 can be replaced with the shape or size of a pipe or a duct arranged on the ceiling surface to be installed. For example, in the present embodiment, a case has been shown in which the cross-sectional shape of the recess of the engagement tool 62 is a semicircular shape matched to a cylindrical pipe or duct or the like, but it is matched to a square columnar pipe or duct or the like. It may have a cross-sectional shape. Thereby, the engaging tool 62 with a large area which engages with obstructions, such as piping or a duct distribute | arranged to the ceiling surface, can be selected and used. Further, since the engaging tool 62 is rotatable in the horizontal direction and can be moved horizontally by the slide member 15, the simple partition wall can be stably fixed to the ceiling surface according to the position and orientation of the piping. Further, the engaging means 60 may be made of metal or resin such as rubber.

  Further, as shown in FIG. 5, the wall plate 30 is sandwiched and supported between the pressing spring 16 and the lower beam member 12b. Thus, by fixing the wall board 30, the space between a ceiling surface and a floor surface can be partitioned without a gap.

  Next, the operation of the simple partition wall 100 configured as described above will be described.

  FIG. 6 is a diagram showing a procedure for forming the simple partition wall 100 of the present invention between the pipe 1 and the duct 2 arranged on the ceiling surface 44 and the floor surface 46.

  First, while pushing the lock button 24, the tip of the pole 10 is inserted into the pole hole 20 of the connecting member 18, and the lock button 24 and the lock button hole 22 are fitted. Next, the engaging means 60 is slid and rotated in the horizontal direction while adjusting to the diameter of the duct 2 arranged on the ceiling surface 44 in a place where a partition wall is required (a place where the work space and the non-work space are blocked). The position and orientation of the engaging tool 62 of the engaging means 60 with respect to the duct 2 are determined and fixed to the upper beam member 12a with a bolt or the like (not shown). Then, as shown in FIG. 6A, the engaging means 60 formed on the top of the pole 10 is brought into contact with the duct 2 disposed on the ceiling surface 44, and the lower beam member 12b is placed on the floor surface 46. Abut. At this time, the engaging means 60 is in close contact with the duct 2 via the cushioning material 64, and the floor surface side of the beam member 12 b is in close contact with the floor surface via the close contact member 34.

  Thus, the beam members 12a and 12b and the pole 10 are connected, and the ceiling surface 44 and the beam member 12a are fixed by the engaging means 60, so that the support frame 50 is formed. That is, the pole 10 is stretched so that the length of the pole 10 can be adjusted to the distance between the duct 2 disposed on the ceiling surface 44 and the floor surface 46 while the pole 10 is compressed. Thereby, both ends of the pole 10 are pressed against the duct 2 and the floor surface 46 disposed on the ceiling surface 44 by the urging force of the elastic body in the rod 38, and the pole 10 is interposed between the duct 2 and the floor surface 46. Supported by handing over.

  Next, the above operation is repeated, and a plurality of support skeletons 50 (only two are shown in FIG. 6) are arranged side by side as shown in FIG. The support frame 50 is disposed so that the beam members 12a, 12a or 12b, 12b are in contact with each other, and is installed in the entire place where a partition wall is required. In addition, when the beam members 12a and 12a or 12b and 12b do not contact each other at the end of the place where the partition wall is required, the beam member 12 having an appropriate length is connected and the support frame 50 is installed. .

  Next, as shown in FIG. 6C, the wall plate 30 is inserted into the holding spring 16 of the lower beam member 12 b, and the wall plate 30 is sandwiched and supported by the pole 10. Then, as shown in FIG. 6D, the wall plate 30 is also inserted into the pressing spring 16 of the upper beam member 12a, and the wall plate 30 is sandwiched and supported by the pole 10. The wall plate 30 is formed of a cardboard-shaped polypropylene plate, plywood plate, vinyl chloride plate, or the like, and has a thickness that can be sandwiched and supported by the holding spring 16 and the same width as the beam member 12. Is formed. Further, the length of the wall plate 30 may be any length as long as it is larger than half of the interval between the ceiling surface 44 and the floor surface 46, and even if the upper and lower wall plates 30, 30 overlap as shown in FIG. Good. When the wall plate 30 having such a length is used, even if the space between the ceiling surface 44 and the floor surface 46 is widened, the overlapping area of the wall plate 30 only changes, so that it is not necessary to change the length of the wall plate 30. .

  Next, as shown in FIG. 6 (E), the upper and lower wall plates 30 are attached to all the column skeletons 50 to form partition walls, and then the walls are adhered with adhesive tape 48 as shown in FIG. 6 (F). The plate 30 is weathered. As described above, the pipe 1 or the duct 2 disposed on the ceiling surface 44 and the beam member 12a are in close contact with each other through the buffer material 64, and the floor surface 46 and the beam member 12b are in close contact with each other through the close contact member 34. Therefore, the partition of the present invention can completely block the work space and the non-work space. Accordingly, dust scattered in the work space does not leak into the non-work space, and contamination of the non-work space can be prevented.

  In the present embodiment, it is preferable to install the partition auxiliary wall 70 on the upper beam member 12a in order to further close the gap formed around the pipe 1 or the duct 2.

  FIG. 7 shows a simple partition wall 100 ′ in which a partition auxiliary wall 70 is provided on the top of the simple partition wall 100 in the present embodiment as an application example of the present embodiment.

  As shown in FIG. 7, the partition auxiliary wall 70 is provided on the side surface in the longitudinal direction of the upper beam member 12a with the same width as the beam member 12a. The partition auxiliary wall 70 includes a support plate 72 in which a U-shaped recess is formed, and two swing plates 72a and 72b that are swingable with the edge of the recess of the support plate 72 as a support shaft. I have. As shown in FIG. 8, the partition auxiliary wall 70 is sandwiched and supported by the side surface of the beam member 12 a by the pressing spring 16.

  FIG. 9 illustrates the operation of the partition auxiliary wall 70. When the pipe 1 is pressed against the partition auxiliary wall 70 in the opened state of FIG. 9A against the ends of the swing plates 72a and 72b, the swing plate supports the support shaft as shown in FIG. 9B. Rotate in the closing direction (arrow direction). 9C, the support plate 72 and the swinging plates 72a and 72b form an opening surrounding the periphery of the pipe 1 at the center of the partition auxiliary wall 70, and The gap between the beam member 12a is closed.

  Thus, by installing the partition auxiliary wall 70 between the simple partition wall 100 and the ceiling surface on which pipes or ducts are arranged, the simple partition wall 100 and the ceiling surface can be reliably and substantially free of gaps. Can be closed.

  In the present embodiment, the case where the arrangement direction of pipes or ducts is substantially perpendicular to the direction in which the simple partition walls 100 are arranged is shown. However, as shown in FIG. Even when it is substantially parallel to the installation direction, the engaging means 60 can be horizontally moved and rotated to support the duct 2 (at this time, the partitioning auxiliary wall 70 is not installed).

  Moreover, in this Embodiment, although the case where the simple partition wall 100 was installed in the ceiling surface where piping or the duct was distribute | arranged was demonstrated, as shown in FIG. Even when (duct 1 in the figure) is provided, the engaging means 60, 60 of the two simple partition walls 100 can be combined and arranged so as to face each other. Thereby, the simple partition wall 100 can be stably installed, without damaging piping or a duct. At this time, the edges of the upper ends of the engaging means 60 are in contact with each other in a substantially flat surface, and the edges can be connected to each other by a fixing jig (bolt, screw, etc.) not shown. Although not shown, it is also possible to close the gap formed around the duct 1 by installing a partition auxiliary wall 70 between the beam members 12a, 12a facing each other.

  In the present embodiment, the case where a simple partition wall is installed between a wall surface on which an obstacle such as a pipe or a duct is arranged or between opposing wall surfaces has been described. It can also be used on a wall surface or ceiling surface as usual.

  As described above, by using the simple partition wall according to the present embodiment, the movable engagement means 60 allows the obstacle to be obstructed even in the wall where the obstacle is arranged or in the space where the obstacle exists between the opposing wall surfaces. The area where an object and a simple partition wall engage can be increased. Therefore, the simple partition wall can be stably fixed. In addition, since the gap between the beam member of the simple partition wall and the ceiling surface can be easily closed by the partition auxiliary wall 70, it is possible to suppress scattering of dust and the like generated in the renewal work or the like. Furthermore, since the pole 10 is installed and supported by an elastic body (not shown) in the rod 38 and the wall plate is sandwiched and supported by the pressing spring 16, the partition wall can be easily formed. In addition, since the length of the pole 10 of the present embodiment can be adjusted by sliding the inner cylinder 40, the distance between an obstacle such as a pipe or duct arranged on the ceiling surface and the floor surface can be adjusted. Regardless, the partition wall can be formed.

  By the way, when disassembling the formed simple partition wall, it is performed in the reverse procedure to the above-described operation. That is, the adhesive tape 48 used for the weathering is peeled off, each wall plate 30 is pulled out from the holding spring 16, and the support frame 50 is removed. The detached support frame 50 is disassembled into the pole 10 and the beam members 12a and 12b by removing the engaging means 60 and pulling out the pole 10 while pressing the lock button 24.

  Thus, the simple partition wall 100 of this Embodiment can be disassembled easily. Further, the wall plate 30 is only sandwiched between the beam members 12a and 12b, so that it is not damaged and can be reused. Furthermore, since the support | pillar frame | skeleton 50 can be decomposed | disassembled into the pole 10 and the beam members 12a and 12b, it can be conveyed easily.

  In the above-described embodiment, the simple partition wall is used in the renewal work, but it may be used in other work for curing and taking measures against dust.

  Thus, according to the present invention, a simple partition wall can be stably installed even in a wall where an obstacle is arranged or a space where an obstacle exists between opposing wall surfaces. Moreover, since the gap between the beam member of the simple partition wall and the ceiling surface can be easily closed by the partition auxiliary wall, dust scattered in the work space such as renewal work will not leak into the non-work space. It is possible to prevent contamination of the work space.

  In addition, according to the present invention, it is possible to easily assemble and disassemble a simple partition wall when performing limited time work such as renewal work, particularly on a ceiling surface where piping or ducts are arranged. And the construction period can be greatly shortened.

It is a figure explaining the whole structure of the simple partition wall which concerns on this invention. It is a disassembled perspective view of the simple partition wall of FIG. 1 which concerns on this invention. It is a figure explaining the connection member of Drawing 1 concerning the present invention. It is a side view explaining the engaging means of FIG. 1 which concerns on this invention. It is a figure explaining the attachment state of the wall board of FIG. 1 which concerns on this invention. It is a figure which shows the effect | action of the simple partition wall which concerns on this invention. It is a figure explaining the application example of the simple partition wall which concerns on this invention. It is a figure explaining the attachment state of the wall board of FIG. 7, and the partition auxiliary wall of this invention. It is a figure explaining operation | movement of the partition auxiliary wall which concerns on this invention. It is a perspective view which shows the other installation form of the simple partition wall which concerns on this invention. It is a perspective view which shows the other installation form of the simple partition wall which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Piping, 2 ... Duct, 10 ... Pole (support | pillar member), 12a, 12b ... Beam member, 13 ... Rail (horizontal movement track), 15 ... Slide member, 16 ... Holding spring (clamping tool), 30 ... Wall Plate 34: Contact member 36 ... Outer cylinder 38 ... Rod 40 ... Inner cylinder 50 ... Strut skeleton 60 ... Engagement means 62 ... Engagement tool 64 ... Buffer material 70 ... Partition auxiliary wall 72 ... Support plate, 72a, 72b ... Oscillating plate, 100, 100 '... Simple partition wall

Claims (4)

In a simple partition wall that partitions a space having a bar-shaped obstacle between the ceiling surface and the floor surface or between the opposing wall surfaces,
Wallboard,
A telescopic bar member; and a biasing unit that biases the bar member in the extending direction. The biasing force of the biasing unit causes the bar member to move between the obstacle and the ceiling surface, floor surface, or wall surface. A strut member that supports and spans between,
A pair of opposing beam members, which are attached to both ends of the bar member in a direction orthogonal to the bar member, and which have a clamping tool that detachably supports the wall plate; and
A simple partition wall provided on at least one of the pair of beam members, and having engagement means that can move horizontally and rotate on the beam members and engage with the obstacle.   The simple partition wall according to claim 1, wherein the bar-shaped obstacle is a pipe and / or a duct. The engaging means includes
A horizontal movement trajectory formed in the longitudinal direction on the beam member;
A slide member that slides on the horizontal movement trajectory;
An engagement tool that is supported on the slide member in a horizontally rotatable manner, and an engagement surface that engages with the obstacle is formed in a concave cross section.
The simplified partition wall according to claim 1 or 2, further comprising: In the central part of the simple partition wall, a square plate-like partition auxiliary wall in which an opening surrounding the obstacle is formed is provided,
The partition auxiliary wall is
A support plate that is detachably supported by the beam member and has a recess that becomes a part of the opening;
A pair of oscillating plates each having a recess that becomes a remaining portion of the opening after swaying, with a symmetrical position across the recess of the support plate as a pair of support shafts, respectively. With
The pair of swing plates swings about the support shaft when the obstacle comes into contact with the obstacle when the obstacle is supported by the recess of the support plate. One of the simple partition walls.

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