JP2013023903A - Movable scaffolding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a movable scaffolding device which is installed in a building and enhances convenience while suppressing upsizing of the device.SOLUTION: A movable scaffolding device 19 includes a plurality of supporting members 40 which are fixed to a building 10 and overhang in an outdoor direction, and rollers 45, 65A and 65B which are rotatably supported in positions of overhanging in the outdoor direction, in the supporting members 40. A lower rail 79 is laid across the plurality of rollers 45, and a rail 89 to be sandwiched is laid across the plurality of rollers 65A and 65B. Lower scaffolding 70 and upper scaffolding 80 are connected to the lower rail 79 and the rail 89 to be sandwiched.

Description

  The present invention relates to a mobile scaffold device installed in a building.

  2. Description of the Related Art Conventionally, there is a mobile scaffold device that is used in an operation performed while an operator moves along the outer wall of a building, such as a renovation operation of the outer wall of a building (see, for example, Patent Document 1). In the device described in Patent Document 1, a traveling unit that supports a bucket for boarding includes a traveling roller that rolls along the upper edge surface of the protruding portion of the building, an outer side roller that rolls along the outer surface of the protruding portion, An inner side roller that rolls along the inner surface of the protrusion.

  In addition, there is a simple scaffold installed in a structure in which a structure that protrudes from a main structure such as a passage or a veranda is provided on each floor (for example, see Patent Document 2). The scaffold described in Patent Document 2 includes a scaffold main body installed on the hallway floor, a support attached to the scaffold main body to obtain a support reaction force from the upper and lower corridor floors via a jack, and from the scaffold main body to the outdoor direction. An overhanging scaffold plate and a caster attached to the lower end of the scaffold body are provided.

  There is a gondola device that can move along the outer wall surface of a building (see, for example, Patent Document 3). In the apparatus described in Patent Document 3, a rail extending in the horizontal width direction of the building is held by a holding mechanism provided on the roof portion of the building, and the gondola can move along the rail.

Japanese Patent No. 3971444 JP 2000-38837 A Japanese Patent No. 4132532

  By the way, in the scaffold device described in Patent Document 1, when the traveling unit moves, the traveling roller, the outer side roller, and the inner side roller roll along the surface of the protruding portion of the building. For this reason, the movement of the traveling unit is restricted depending on the structure of the building, the surface shape of the protrusion, and the like, and the convenience of the scaffold device cannot be improved.

  Moreover, in the simple scaffold of patent document 2, a scaffold main body is supported because the support attached to the scaffold main body is fixed to an upper and lower corridor floor via a jack. Therefore, in order to change the installation location of the simple scaffold, it is necessary to remove the support from the upper and lower corridor floors, move the scaffold main body, and then fix the support to the upper and lower corridor floors again. Therefore, the simple scaffold cannot be used while being moved, and the convenience of the simple scaffold cannot be improved.

  On the other hand, in the gondola device described in Patent Document 3, the movable range of the gondola can be expanded by extending the rail in the width direction of the building, and the convenience of the gondola device can be improved. However, in that case, a very long rail is required, and the enlargement of the apparatus is inevitable.

  The present invention has been made in view of such circumstances, and a main object of the present invention is to improve convenience in a mobile scaffold device while suppressing an increase in size of the device.

  The present invention employs the following means in order to solve the above problems.

  1st invention is the mobile scaffold apparatus installed in the building, Comprising: The support member which was fixed to the said building and protruded in the outdoor direction, and the position protruded in the said outdoor direction in each of the said support member A roller rotatably supported by the motor, a rail that is stretched over the plurality of rollers and moved by the rotation of the rollers, and a scaffold member that is connected to the rails.

  According to the above configuration, the plurality of support members projecting in the outdoor direction are fixed to the building. In each support member, a roller is rotatably supported at a position protruding in the outdoor direction of the building. And the scaffold member (scaffold) is connected with the rail, The rail hung over the some roller is moved by rotation of a roller.

  That is, since the rail to which the scaffold member is connected is moved by the rotation of the roller, a long rail extending along the building is not required. Furthermore, by increasing the number of support members that rotatably support the rollers, the movable range of the rails to which the scaffold members are connected can be expanded, and the scaffold members can be moved while the support members are fixed. it can. Therefore, in the mobile scaffold device, it is possible to improve convenience while suppressing an increase in size of the device. In order to stabilize the rail, it is desirable that the plurality of rollers be arranged at the same height.

  A second invention is a mobile scaffold device installed in a building, and is a plurality of support members fixed to the building and projecting in the outdoor direction, and positions projecting in the outdoor direction in each of the support members A roller that is rotatably supported by the roller, a rail that is spanned by two to four rollers and that is moved by the rotation of the roller, and a scaffold member that is coupled to the rail. And

  According to the said structure, a rail is moved by rotation of a roller in the state hung on the 2 thru | or 4 roller. For this reason, it is possible to stabilize the rail by passing the rail over at least two rollers, and to suppress an increase in the size of the apparatus due to the use of a rail that is longer than necessary.

  Depending on the building, the structure of the portion for fixing each support member may be different. In this case, if a plurality of support members and rollers having the same configuration are fixed to the building, the plurality of rollers are displaced without being aligned on the same straight line. And when a some roller is not located in a line, there exists a possibility of causing trouble in the movement of a rail. Alternatively, in order to arrange a plurality of rollers on the same straight line, support members having different lengths are required, and the versatility of the mobile scaffold device may be reduced.

  In this regard, the third invention includes an adjustment mechanism that adjusts the length of the support member protruding in the outdoor direction. For this reason, according to the structure of the part which fixes each support member in a building, the length which a support member protrudes in an outdoor direction can be adjusted. Therefore, it becomes easy to adjust the position of the roller, and the versatility of the mobile scaffold device can be improved.

  In a state where a plurality of support members are fixed to the building, if the rail is tried to be hung around the roller of the specific support member, there is a possibility that the other support member and the rail may hit.

  In this regard, the fourth invention includes a switching mechanism that switches between a state in which the support member projects in the outdoor direction and a state in which the support member does not project. For this reason, it can switch to the state where the support member does not protrude to the outdoor direction. Therefore, when the rail is hung on the roller of the specific support member, it can be prevented that the other support member and the rail hit each other. As a result, the rail can be easily passed over the roller, and the efficiency of the work for installing the mobile scaffold device can be improved.

  In particular, when the configurations of both the third invention and the fourth invention are provided, the length of the support member protruding in the outdoor direction is adjusted by the adjusting mechanism, and then the support member is not extended in the outdoor direction. It can be switched by a switching mechanism. As a result, it is possible to accurately adjust the length of the support member projecting in the outdoor direction in a state where the rail is not stretched over the roller, and it is possible to easily span the rail over the roller.

  In a fifth aspect of the invention, the roller includes a first roller that is rotatably supported at a position protruding in the outdoor direction at a lower portion of the support member, and an outdoor direction at the upper portion of the support member. A second roller rotatably supported at a protruding position, the rail spanning the plurality of first rollers and moved by the rotation of the first roller, and a plurality of rollers A second rail that is stretched over the second roller and moved by the rotation of the second roller, wherein the scaffold member is a first scaffold member disposed below the first rail, and the second rail And a second scaffold member disposed above the rail.

  According to the said structure, the 1st roller and the 2nd roller are rotatably supported by the lower part and upper part of each support member, respectively. And the 1st scaffold member and the 2nd scaffold member are respectively arrange | positioned under the 1st rail and the 2nd rail above, respectively, and the 1st rail hung over the some 1st roller and the some 2nd roller respectively And the second rail is moved by the rotation of the first roller and the second roller, respectively. Therefore, a common support member can be used for supporting both the first scaffold member and the second scaffold member, and an increase in the number of necessary support members can be suppressed.

  In a sixth aspect of the invention, the building includes a side wall, and an upper surface wall and a lower surface wall projecting from the side wall in the outdoor direction, and is connected to the support member, and the upper surface wall and the lower surface wall A support column having an upper end and a lower end supported respectively, and a diagonal member connected to a lower portion of the support column and having an upper end supported by the upper surface wall and the side wall.

  According to the said structure, the building is provided with the side wall and the upper surface wall and lower surface wall which protruded from the side wall to the outdoor direction. A support member is connected to the support column, the upper end of the support column is supported by the upper surface wall, and the lower end of the support column is supported by the lower surface wall. An oblique member is connected to the lower portion of the support column, and an upper end of the oblique member is supported by the upper surface wall and the side wall.

  For this reason, when the weight of a rail, a scaffold member, an operator, etc. acts on a support member, the moment which rotates a support | pillar acts on the connection part of a support | pillar and a support member. This moment is transmitted to the diagonal member connected to the lower part of the column, and is received by the upper and side walls of the building at the upper end of the diagonal member. Therefore, the support member can be fixed by the support column and the diagonal member, and the weight acting on the support member can be received.

  Here, the weight acting on the support member is received by the upper end and the lower end of the support column and the upper end of the diagonal member, so that the portion corresponding to the lower wall of the building can be only the lower end of the support column. Therefore, it can suppress that fixing of a supporting member is restrict | limited by the shape of a lower surface wall, etc. In particular, when a drainage groove or the like is provided on the lower wall, the lower end of the support can be applied to the drainage groove or the like, and it is possible to suppress damage to waterproofing processing (surface) of the lower wall.

  In a seventh aspect of the invention, the diagonal member is connected rotatably in a vertical plane along the outdoor direction around the connecting portion with the support column, and includes an expansion / contraction mechanism that enables expansion / contraction. .

  According to the said structure, an oblique member can be rotated within the vertical plane along the outdoor direction centering | focusing on the connection part with a support | pillar. Moreover, since the diagonal material is provided with the expansion-contraction mechanism, the length can be adjusted. Therefore, regardless of the distance between the side wall and the column of the building and the distance between the upper surface wall and the lower surface wall, the upper end of the diagonal member can be adjusted to be supported by the upper surface wall and the side wall.

  In an eighth aspect of the invention, horizontal portions that extend horizontally in a direction intersecting the outdoor direction are respectively provided at the upper end and the lower end of the support column and the upper end of the diagonal member.

  According to the said structure, the horizontal part each provided in the upper end of a support | pillar and the upper end of an oblique material hits the upper surface wall of a building, and the horizontal part provided in the lower end of a support | pillar hits the lower surface wall of a building. And since these horizontal parts are extended horizontally in the direction which crosses an outdoor direction, when the force which shifts a support | pillar and diagonal is applied from the inside of a vertical plane, the force is received by the horizontal part. Accordingly, the fixing of the support member can be further stabilized.

  A ninth invention is a mobile scaffold device installed in a building, wherein a plurality of support members fixed to the building so as to project in the outdoor direction, and each of the support members is extended in the outdoor direction. A roller that is rotatably supported at a position to be extended, a rail that is spanned by the plurality of rollers and moved by the rotation of the rollers in a state of being installed in the building, and a scaffold member that is coupled to the rail It is characterized by providing.

  According to the said structure, when a mobile scaffold apparatus is installed in a building, there can exist an effect similar to 1st invention.

  In a tenth aspect of the invention, an adjustment mechanism is provided that adjusts the length of the support member protruding in the outdoor direction in a state where the support member is installed in the building.

  According to the said structure, when a mobile scaffold apparatus is installed in a building, there can exist an effect similar to 3rd invention.

  In an eleventh aspect of the invention, there is provided a switching mechanism for switching between a state in which the support member projects in the outdoor direction and a state in which the support member does not project in the state where the building is installed in the building.

  According to the said structure, when a mobile scaffold apparatus is installed in a building, there can exist an effect similar to 4th invention.

  In particular, when the configurations of both the tenth invention and the eleventh invention are provided, the same operational effects as when the configurations of both the third invention and the fourth invention are provided can be achieved.

The front view which shows the outline of a mobile scaffold apparatus. The side view which shows a mobile scaffold apparatus. The enlarged side view which shows a rotation mechanism periphery. The front view which shows the outline of operation | movement of a rotation mechanism. The expanded side view which shows a supporting member periphery.

  Hereinafter, an embodiment will be described with reference to the drawings. The present embodiment is embodied as a mobile scaffold device used for repair work or finishing work of an outer wall or a handrail in an apartment or an apartment.

  First, an outline of the mobile scaffold device 19 will be described with reference to FIG.

  As shown in the figure, the building 10 includes an outer wall 11 (side wall), a lower floor passage floor 12 (lower surface wall), an upper floor passage floor 13 (upper surface wall), and a handrail 14. The passage floors 12 and 13 protrude from the outer wall 11 toward the outdoor side of the building 10. In the building 10, the lower floor veranda floor may be the target as the lower wall, and the upper veranda floor may be the target as the upper wall.

  The rollers 45, 65 </ b> A, and 65 </ b> B are rotatably supported by the support member 40 at positions where the building 10 projects outward. Then, the lower scaffold 79 connected to the lower rail 79 is moved by moving the lower rail 79 suspended over the plurality of lower rollers 45 as the lower roller 45 rotates. Further, the upper scaffold 80 connected to the sandwiched rail 89 is moved by moving the sandwiched rail 89 spanned between the plurality of sandwiching rollers 65A and 65B as the sandwiching rollers 65A and 65B rotate.

  Next, the structure of each part of the mobile scaffold device 19 will be described. FIG. 2 is a side view showing the mobile scaffold device 19.

  The fixing device 20 is a device that fixes the support member 40 that supports the rollers 45, 65 </ b> A, 65 </ b> B and the like to the building 10. The fixing device 20 includes a column 21, a diagonal member 25, a cross member 30, a rotation mechanism 35, and the like. The support member 40 is coupled to the column 21 via a rotation mechanism 35.

  The support column 21 is formed in a long shape, and includes a bottom portion 22, an upper portion 23, and an expansion / contraction mechanism 24. The expansion / contraction mechanism 24 adjusts the length in which a part of the column 21 overlaps and fixes it with a screw or the like, thereby enabling the column 21 to expand and contract. The length of the column 21 is adjusted to be equal to the distance between the lower floor passage floor 12 and the upper floor passage floor 13 by the telescopic mechanism 24.

  In the support column 21, the bottom 22 (lower end) is supported by the lower floor passage floor 12, and the upper portion 23 (upper end) is supported by the upper floor passage floor 13. The bottom part 22 and the upper part 23 extend perpendicularly to the longitudinal direction of the column 21 and are arranged so that the extending direction is horizontal. Specifically, the direction in which the bottom portion 22 (horizontal portion) extends and the direction in which the upper portion 23 (horizontal portion) extends are arranged so as to be perpendicular to the outdoor direction of the building 10 (intersect with the outdoor direction). The bottom portion 22 is disposed in a drainage groove 12a (groove) provided in the passage floor 12 on the lower floor. The upper portion 23 is provided with a reinforcing portion 23 a that reinforces the upper portion 23 so as to maintain an angle between the longitudinal direction of the support column 21 and the extending direction of the upper portion 23.

  The diagonal member 25 is formed in a long shape, and includes a lower connecting portion 26, an intermediate connecting portion 27, an upper portion 28, and an expansion / contraction mechanism 29. The expansion / contraction mechanism 29 adjusts the length in which the diagonal member 25 overlaps and fixes the diagonal member 25 with a screw or the like, thereby enabling the diagonal member 25 to expand and contract. The length of the diagonal member 25 is adjusted by the expansion / contraction mechanism 29 so that the upper portion 28 of the diagonal member 25 hits the lower surface of the passage floor 13 on the upper floor and the outdoor side surface of the outer wall 11. That is, the length of the diagonal member 25 is adjusted so that the length from the lower connecting portion 26 to the upper portion 28 becomes equal to the distance from the lower connecting portion 26 to the intersection of the outer wall 11 and the upper floor passage floor 13. Has been.

  In the diagonal member 25, the lower connecting portion 26 (lower end) is connected to the lower portion of the support column 21, and the upper portion 28 is supported by the outer wall 11 and the passage floor 13 on the upper floor. The diagonal member 25 is connected so as to be rotatable in a vertical plane along the outdoor direction with the lower connecting portion 26 as a center. The upper part 28 (upper end) extends perpendicularly to the longitudinal direction of the diagonal member 25 and is arranged so that the extending direction is horizontal. Specifically, the direction in which the upper portion 28 (horizontal portion) extends is arranged so as to be perpendicular to the outdoor direction of the building 10 (intersect with the outdoor direction). For this reason, the upper part 28 is in contact with both the outdoor side surface of the outer wall 11 and the lower surface of the upper floor passage floor 13 over the entire length in the longitudinal direction. The cross-sectional shape of the upper portion 28 is circular, and the upper portion 28 can abut against both the outdoor side surface of the outer wall 11 and the lower surface of the passage floor 13 on the upper floor in a stable state.

  A cross member 30 is connected to the intermediate connecting portion 27 of the diagonal member 25. The cross member 30 is formed in a long shape, and includes an engaging portion 31 and an expansion / contraction mechanism 32. The cross member 30 is connected to the diagonal member 25 so as to be rotatable in a vertical plane along the outdoor direction around the intermediate connecting portion 27. The expansion / contraction mechanism 32 enables the horizontal member 30 to be expanded and contracted by adjusting the length of the overlap of the horizontal member 30 and fixing it with screws or the like.

  The engagement portion 31 will be described with reference to FIG. Here, an engaged portion 21 a with which the engaging portion 31 is engaged is provided at the intermediate portion of the column 21. As the engaging portion 31, a cutout is formed at the end of the cross member 30 opposite to the intermediate connecting portion 27. The engaged portion 21 a includes a pin 21 b that fits into a notch as the engaging portion 31. In a state where the engaging part 31 is engaged with the engaged part 21a, relative rotation between the engaging part 31 and the engaged part 21a is allowed, and relative movement between the engaging part 31 and the engaged part 21a is allowed. Be regulated.

  The length of the cross member 30 is adjusted by the expansion / contraction mechanism 32 so that the engaging portion 31 of the cross member 30 is engaged with the engaged portion 21 a of the support column 21. That is, the length of the cross member 30 is adjusted so that the length of the diagonal member 25 from the intermediate connecting portion 27 to the engaged portion 21a is equal to the distance from the intermediate connecting portion 27 to the engaged portion 21a. ing. In a state where the engaging portion 31 is engaged with the engaged portion 21 a, the oblique member 25 is restricted from rotating around the lower connecting portion 26 in the direction in which the upper portion 28 of the oblique member 25 approaches the column 21.

  As shown in FIG. 3, the support column 21 is provided with a rotation mechanism 35. The rotation mechanism 35 (switching mechanism) includes a main body 36 formed in a cylindrical shape. The main body 36 is fitted to the outer periphery of the support column 21, is movable in the longitudinal direction of the support column 21, and is rotatable in the circumferential direction of the support column 21. The main body portion 36 is formed with through-holes 37 penetrating in a direction perpendicular to the longitudinal direction at predetermined intervals in the longitudinal direction. Further, notches 38A and 38B are formed at the lower end of the main body 36. The notches 38 </ b> A and 38 </ b> B are formed at an interval of approximately 90 ° in the circumferential direction of the main body 36 and extend upward from the lower end of the main body 36. The through hole 37 and the notch 38 </ b> A are formed at the same position in the circumferential direction of the main body 36.

  A through hole corresponding to each through hole 37 is formed in the column 21. In other words, the support column 21 is formed with through-holes penetrating in a direction perpendicular to the longitudinal direction at intervals equal to the predetermined interval in the longitudinal direction.

  A pin 39A is inserted into the through hole 37 of the main body 36 and the through hole of the column 21, and the pin 39B is fitted into the notch 38A (the pin 39B is inserted into the through hole 37 of the main body 36 and the through hole of the column 21). )doing. In this state, the movement of the main body portion 36 in the longitudinal direction of the support column 21 and the rotation of the main body portion 36 relative to the support column 21 are restricted. Then, after the pins 39A and 39B are removed and the main body portion 36 is moved up and down, the pins 39A and 39B are inserted, whereby the vertical position of the rotation mechanism 35 relative to the column 21 can be adjusted.

  The operation of the rotation mechanism 35 will be described with reference to FIG. In the figure, the scaffolds 70 and 80 and a part of the fixing device 20 are omitted. By removing the pins 39A and 39B and rotating the main body portion 36 in the circumferential direction of the support column 21, the support member 40, the rollers 65A and 65B and the like can be retracted from the outdoor direction (indicated by a two-dot chain line). Then, by inserting the pin 39B and fitting it into the notch 38B, the support member 40, the rollers 65A, 65B and the like can be held in this retracted state. That is, the rotation mechanism 35 switches between a state in which the support member 40 projects in the outdoor direction and a state in which the support member 40 does not project.

  As shown in FIGS. 1 and 2, the support members 40 are fixed to the building 10 by the fixing devices 20, and the scaffolds 70 and 80 are supported by the plurality of support members 40. In each of the support members 40, the rollers 45, 65A, 65B are rotatably supported at positions projecting in the outdoor direction. Below, with reference to FIG. 5, the structure of the support member 40, roller 45, 65A, 65B, etc. is demonstrated. FIG. 5 is an enlarged side view showing the periphery of the support member 40.

  As shown in the figure, the support member 40 is formed in an elongated shape, and is formed using an “H” -shaped steel material. And the flange of the "H" shaped steel material as the supporting member 40 is arrange | positioned up and down, respectively. The support member 40 is formed with a plurality of through holes penetrating in a direction perpendicular to the longitudinal direction at predetermined intervals in the longitudinal direction.

  An adjustment mechanism 41 that adjusts the length of the support member 40 is provided at a connection portion between the support member 40 and the rotation mechanism 35. The adjustment mechanism 41 can adjust the length of the support member 40 protruding in the outdoor direction. The adjustment mechanism 41 includes a main body 41a formed in a cylindrical shape. The support member 40 is fitted to the inner periphery of the main body 41a, is movable in the longitudinal direction, and is not rotatable in the circumferential direction. The main body portion 41 a is formed with a through hole that can be overlapped with the through hole formed in the support member 40. And the support member 40 and the main-body part 41a are relatively moved, the through-hole formed in the main-body part 41a is overlapped with the through-hole formed in the support member 40, and it fastens with the fasteners 42, such as a volt | bolt. .

  A holding portion 46 that rotatably holds the lower roller 45 is attached to the lower portion of the support member 40. The holding portion 46 is attached in the vicinity of the end portion of the support member 40 on the side opposite to the rotation mechanism 35. The lower roller 45 is rotatably held by the holding portion 46. The lower roller 45 (first roller) is formed in a columnar shape with a steel material or the like, and includes flange portions 47 at both ends in the axial direction. The axial direction of the roller 45 coincides with the longitudinal direction of the support member 40. For this reason, in a state where the support member 40 protrudes outward from the building 10, the axial direction of the roller 45 coincides with the indoor / outdoor direction and is substantially perpendicular to the outer wall 11.

  A lower rail 79 is stretched over a plurality of (here, 3 to 4) lower rollers 45. The lower rail 79 (first rail) is formed in a long shape, and is formed in a square column shape using a square steel material. The lateral width of the rail 79 is set to be slightly narrower than the distance between the pair of flange portions 47 of the roller 45. A rail 79 is disposed between the pair of flange portions 47. Specifically, both side surfaces of the rail 79 are parallel to the flange portion 47, and the side surface of the rail 79 and the flange portion 47 partially overlap in the height direction.

  An upper support part 77 of the lower scaffold 70 is connected to the lower rail 79 via a connection part 78. The upper support part 77 is a part that supports the upper part of the lower scaffold 70, and extends upward from the upper surface member 71 of the lower scaffold 70. The upper support part 77 is formed in a long shape, and is formed in a quadrangular prism shape using a square steel material. The width of the upper support 77 in the indoor / outdoor direction is set to be slightly narrower than the distance between the pair of flanges 47 of the roller 45. An upper support portion 77 is disposed between the pair of flange portions 47. Specifically, the side surface in the indoor / outdoor direction of the upper support portion 77 is parallel to the flange portion 47, and the side surface and the flange portion 47 partially overlap in the height direction. The distance between the rail 79 and the upper support 77 is slightly wider than the diameter of the roller 45. In a state where the roller 45 is sandwiched between the rail 79 and the upper support portion 77, the pair of flange portions 47 restricts the rail 79 and the upper support portion 77 from being removed from the roller 45.

  A holding portion 66 that holds the above-described sandwiching rollers 65A and 65B rotatably is attached to the upper portion of the support member 40. The holding portion 66 is attached to the support member 40 near the end portion on the rotating mechanism 35 side. The holding rollers 66 hold the holding rollers 65A and 65B so as to be rotatable. Each of the sandwiching rollers 65A and 65B (second roller) is formed in a columnar shape by a steel material or the like, and includes flange portions 67 at both ends in the axial direction. The axial direction of the rollers 65 </ b> A and 65 </ b> B coincides with the longitudinal direction of the support member 40. For this reason, in the state where the support member 40 protrudes in the outdoor direction of the building 10, the axial direction of the rollers 65 </ b> A and 65 </ b> B coincides with the indoor and outdoor directions and is substantially perpendicular to the outer wall 11.

  A sandwiched rail 89 is stretched around a plurality of pairs (here, three to four pairs) of sandwiching rollers 65A and 65B. The sandwiched rail 89 (second rail) is disposed between the sandwiching rollers 65A and 65B. The rail 89 is formed in a long shape, and is formed using an “H” -shaped steel material. The lateral width of the rail 89 is set to be slightly narrower than the distance between the pair of flange portions 67 of the rollers 65A and 65B. A rail 89 is disposed between the pair of flange portions 67. Specifically, the upper portion of the rail 89 and the flange portion 67 of the roller 65A partially overlap in the height direction, and the lower portion of the rail 89 and the flange portion 67 of the roller 65B partially overlap in the height direction. . The distance between the rollers 65A and 65B is slightly wider than the height of the rail 89. When the rail 89 is sandwiched between the rollers 65A and 65B, the rail 89 is removed from between the rollers 65A and 65B. The pair of flange portions 67 of the roller 65A and the pair of flange portions 67 of the roller 65B. Is regulated by A lower surface member 81 of the upper scaffold 80 is connected to the sandwiched rail 89 via a connecting portion 88.

  A holding portion 56 that holds the upper roller 55 rotatably is attached to the upper portion of the support member 40. The holding portion 56 is attached in the vicinity of the end portion of the support member 40 opposite to the rotation mechanism 35. The upper roller 55 is rotatably held by the holding unit 56. The upper roller 55 (second roller) is formed in a columnar shape with a steel material or the like, and includes flange portions 57 at both ends in the axial direction. The axial direction of the roller 55 coincides with the longitudinal direction of the support member 40. For this reason, in the state where the support member 40 protrudes toward the outside of the building 10, the axial direction of the roller 55 coincides with the indoor / outdoor direction and is substantially perpendicular to the outer wall 11.

  An upper rail 59 is stretched over a plurality (here, 3 to 4) of upper rollers 55. The upper rail 59 (second rail) is formed in a long shape, and is formed using an “H” -shaped steel material. The lateral width of the rail 59 is set to be slightly narrower than the distance between the pair of flange portions 57 of the roller 55. A rail 59 is disposed between the pair of flange portions 57. Specifically, the lower portion of the rail 59 and the flange portion 57 of the roller 55 partially overlap in the height direction. In a state where the rail 59 is stretched over the roller 55, the rail 59 is prevented from being detached from the roller 55 by the pair of flange portions 57. A lower surface member 81 of the upper scaffold 80 is directly connected to the upper rail 59.

  Returning to FIGS. 1 and 2, the lower scaffold 70 and the upper scaffold 80 will be described.

  The lower scaffold 70 includes an upper surface member 71, an upper support portion 77, a lower surface member 72, a plurality of vertical members 73, and a handrail 74. A flat lower surface member 72 (first scaffold member) and a flat upper surface member 71 are connected by a plurality of vertical members 73. The lower surface member 72 and the upper surface member 71 are horizontally disposed, and the plurality of vertical members 73 are vertically disposed. A handrail 74 is provided so as to surround the outer edge of the lower scaffold 70. Each upper support portion 77 is connected to the upper surface member 71.

  The upper scaffold 80 includes a lower surface member 81, a plurality of vertical members 83, and a handrail 84. A plurality of vertical members 83 are erected on a flat plate-like lower surface member 72 (second scaffold member), and upper portions of the plurality of vertical members 83 are connected by a handrail 84. The lower surface member 81 is disposed horizontally, and the plurality of vertical members 83 are disposed vertically. A handrail 84 is disposed so as to surround the outer edge of the upper scaffold 80. A clamped rail 89 and an upper rail 59 are connected to the lower surface member 81.

  Next, the procedure for assembling the mobile scaffold device 19 will be described with reference to FIGS. The procedure is as follows.

  1. A plurality of fixing devices 20 are installed at predetermined intervals in the width direction of the building 10 (intervals of 1/4 to 1/2 of the lengths of the rails 79, 59, 89). For example, the rails 79, 59, and 89 have the same length of 2700 mm, and the interval between the fixing devices 20 is 900 mm. By using the fixing device 20 as an installation procedure, the length of the support column 21 is adjusted by the expansion / contraction mechanism 24 to bring the bottom 22 into contact with the upper surface of the lower floor passage floor 12 and the upper portion 23 on the lower surface of the upper floor passage floor 13. Abut. At this time, the bottom 22 is disposed in the drain groove 12a. Further, the length of the diagonal member 25 is adjusted by the expansion / contraction mechanism 29 and the diagonal member 25 is rotated around the lower connecting portion 26 so that the upper portion 28 is placed on the outdoor side surface of the outer wall 11 and the lower surface of the upper floor passage floor 13. Make contact. And while adjusting the length of the cross member 30 with the expansion-contraction mechanism 32, the cross member 30 is rotated centering | focusing on the intermediate connection part 27, and the engaging part 31 is engaged with the to-be-engaged part 21a.

  2. The lengths of the support members 40 are adjusted by the adjustment mechanisms 41 so that the positions of the common rollers (for example, the lower rollers 45) in the outdoor direction of the building 10 are aligned. Here, depending on the structure of the building 10, it is not possible to install all the fixing devices 20 at positions equidistant from the outer wall 11 in the outdoor direction. Therefore, each adjustment mechanism 41 supports each support member so as to compensate for the deviation. Adjust the length of 40.

  3. In each fixing device 20, the vertical position of the rotation mechanism 35 with respect to the column 21 is adjusted, and the height positions of all the rotation mechanisms 35 are adjusted. Specifically, as shown in FIG. 3, in the rotation mechanism 35, the pins 39 </ b> A and 39 </ b> B are pulled out and the main body 36 is moved up and down, and then the pins 39 </ b> A and 39 </ b> B are inserted, thereby The body portion 36 is fixed by adjusting the position. In addition, the order of this process and said 2 process can also be replaced.

  4). The support member 40 corresponding to the length of the rails 79, 59, 89 is retracted from the outdoor direction by the rotation mechanism 35. For example, in the four fixing devices 20, it is assumed that the support member 40 does not protrude outwardly by the rotation mechanism 35 (a state indicated by a two-dot chain line in FIG. 4). That is, the rails 79, 59, and 89 can be passed through the height positions of the rollers 45, 55, 65A, and 65B.

  5). At the place where the support member 40 is retracted, the scaffolds 70 and 80 are moved from above or below to the height at which the scaffolds 70 and 80 are installed. For example, with a crane or the like, the scaffolds 70 and 80 are lowered to the height at which the scaffolds 70 and 80 are installed while avoiding the support member 40.

  6). The scaffolds 70, 80 are respectively moved in the width direction of the building 10, and the lower rail 79 is hung on the plurality of lower rollers 45, and the upper rail 59 is hung on the plurality of upper rollers 55 (a plurality of sandwiched rails 89 are arranged). (Over the pair of sandwiching rollers 65A and 65B).

  7). The support member 40 that has been retracted from the outdoor direction is brought into a state of projecting in the outdoor direction by the rotation mechanism 35. Then, in the rotation mechanism 35, the main body 36 is fixed by adjusting the vertical position of the main body 36 with respect to the column 21. Thus, the assembly of the mobile scaffold device 19 is completed.

  Then, the worker performs repair work and finishing work such as the handrail 14 while moving the scaffolds 70 and 80 in the width direction of the building 10 in the mobile scaffold device 19.

  Specifically, the operator gets over the ladder 70 by passing the ladder L from the handrail 14 to the lower scaffold 70 and getting off the ladder L. It is also possible to get into the upper scaffold 80 without using the ladder L from the upper floor. At this time, when the weights of the rails 79, 59, 89, the scaffolds 70, 80, the worker, etc. act on the support member 40, the support column 21 is rotated by the rotation mechanism 35 that is a connecting portion between the support column 21 and the support member 40. Moment to act acts. This moment is transmitted to the diagonal member 25 connected to the lower part of the column 21 and is received by the passage floor 13 and the outer wall 11 of the building 10 at the upper part 28 of the diagonal member 25. Further, the upper portion 23 of the support column 21 and the upper portion 28 of the diagonal member 25 hit the passage floor 13 of the building 10, and the bottom portion 22 of the support column 21 hits the passage floor 12 of the building 10. And since these upper parts 23 and 28 and the bottom part 22 are extended horizontally in the direction which cross | intersects an outdoor direction, when the force which shifts the support | pillar 21 and the diagonal material 25 acts from the inside of a vertical plane, the force 23, 28 and the bottom 22 are received.

  Then, the worker moves the scaffolds 70 and 80 in the width direction of the building 10 after performing work on the handrail 14 and the like in the state of riding on the scaffolds 70 and 80. At this time, for example, the lower rail 79 is moved with the rotation of the lower roller 45, and the lower rail 79 is sequentially passed over the lower rollers 45 arranged side by side. By repeating this, repair and finishing work is performed on the handrail 14 and the like of the entire building 10. The worker may get off the scaffolds 70, 80 and move the scaffolds 70, 80 in the width direction of the building 10.

  The embodiment described above has the following advantages.

  A plurality of support members 40 projecting outward are fixed to the building 10. In each support member 40, the roller 45 and the rollers 65 </ b> A and 65 </ b> B are rotatably supported at a position protruding in the outdoor direction of the building 10. And since the rails 79 and 89 respectively connected with the lower scaffold 70 and the upper scaffold 80 are moved by the rotation of the roller 45 and the rollers 65A and 65B, a long rail extending along the building 10 is not required. Furthermore, by increasing the number of support members 40 that rotatably support the roller 45 and the rollers 65A and 65B and the fixing device 20 that fixes the support member 40, the rails 79 and 89 to which the scaffolds 70 and 80 are connected can be moved. The range can be expanded, and the scaffolds 70 and 80 can be moved while the support member 40 is fixed. Therefore, in the mobile scaffold device 19, it is possible to improve convenience while suppressing an increase in size of the device.

  The rail 79 (89) is moved by the rotation of the rollers 45 (rollers 65A and 65B) in a state where the rails 79 (89) are stretched over the three to four rollers 45 (three to four pairs of rollers 65A and 65B). For this reason, the rail 79 (89) is stretched around at least three rollers 45 (at least three pairs of rollers 65A and 65B). Therefore, it is possible to stabilize the rail 79 (89) and to suppress an increase in the size of the mobile scaffold device 19 caused by using a rail longer than necessary.

  -Depending on the structure of the building 10, the structure of the part to which each support member 40 should be fixed may differ. In this case, if a plurality of support members 40 and rollers 45 (rollers 65A and 65B) having the same configuration are fixed to the building 10, a plurality of rollers 45 (a plurality of pairs of rollers 65A and 65B) are arranged on the same straight line. It will slip out. If the plurality of rollers 45 (a plurality of pairs of rollers 65A and 65B) are not aligned on the same straight line, the movement of the rail 79 (89) may be hindered. Alternatively, in order for the plurality of rollers 45 (a plurality of pairs of rollers 65A and 65B) to be aligned on the same straight line, the support members 40 having different lengths are required, and the versatility of the mobile scaffold device 19 is reduced. There is a risk.

  In this regard, in the above-described embodiment, the adjusting mechanism 41 that adjusts the length of the support member 40 protruding in the outdoor direction is provided. For this reason, according to the structure of the part which fixes each support member 40 in the building 10, the length which the support member 40 protrudes to an outdoor direction can be adjusted. Therefore, it becomes easy to adjust the positions of the plurality of rollers 45 (a plurality of pairs of rollers 65A and 65B), and the versatility of the mobile scaffold device 19 can be improved.

  In a state in which the plurality of support members 40 are fixed to the building 10, if the rails 79 and 89 are to be spanned over the roller 45 and the rollers 65 </ b> A and 65 </ b> B of the specific support member 40, another support member 40. And the rails 79 and 89 may hit.

  In this regard, in the above-described embodiment, the rotation mechanism 35 that switches between the state in which the support member 40 projects in the outdoor direction and the state in which the support member 40 does not project is provided. For this reason, it can switch to the state where the support member 40 does not protrude to the outdoor direction. Therefore, when the rails 79 and 89 are wound around the roller 45 and the rollers 65A and 65B of the specific support member 40, it is possible to prevent the other support member 40 and the rails 79 and 89 from hitting. As a result, the rails 79 and 89 can be easily spanned between the roller 45 and the rollers 65A and 65B, and the efficiency of work for installing the mobile scaffold device 19 can be improved.

  In particular, the embodiment includes the adjustment mechanism 41 and the rotation mechanism 35. For this reason, after adjusting the length that the support member 40 protrudes in the outdoor direction by the adjustment mechanism 41, the rotation mechanism 35 can switch to a state in which the support member 40 does not protrude in the outdoor direction. As a result, while the rails 79 and 89 are not stretched between the roller 45 and the rollers 65A and 65B, it is possible to accurately adjust the length of the support member 40 protruding in the outdoor direction. The rails 79 and 89 can be easily spanned between the rollers 65A and 65B.

  The roller 45 and the rollers 65A and 65B (55) are rotatably supported at the lower portion and the upper portion of each support member 40, respectively. A lower scaffold 70 and an upper scaffold 80 are disposed below the rail 79 and above the rail 89 (59), respectively. A rail 79 and a rail 89 (59) spanned between a plurality of rollers 45 and a plurality of pairs of rollers 65A and 65B (a plurality of rollers 55), respectively, are a roller 45 and rollers 65A and 65B (55). ). Therefore, the common support member 40 can be used to support both the lower scaffold 70 and the upper scaffold 80, and an increase in the number of necessary support members 40 can be suppressed.

  The building 10 includes an outer wall 11, an upper floor passage floor 13 and a lower floor passage floor 12 projecting outward from the outer wall 11. A support member 40 is connected to the support column 21, an upper portion 23 of the support column 21 is supported by the upper floor passage floor 13, and a bottom portion 22 of the support column 21 is supported by the lower floor passage floor 12. The diagonal member 25 is connected to the lower part of the support column 21, and the upper part 28 of the diagonal member 25 is supported by the passage floor 13 and the outer wall 11 on the upper floor.

  For this reason, when the weights of the rails 79, 89, 59, the scaffolds 70, 80, the worker, etc. act on the support member 40, a moment for rotating the column 21 acts on the connecting portion between the column 21 and the support member 40. This moment is transmitted to the diagonal member 25 connected to the lower part of the column 21 and is received by the passage floor 13 and the outer wall 11 on the upper floor of the building 10 at the upper part 28 of the diagonal member 25. Therefore, the support member 40 can be fixed by the support column 21 and the diagonal member 25, and the weight acting on the support member 40 can be received.

  Here, since the weight acting on the support member 40 is received by the upper portion 23 and the bottom portion 22 of the support column 21 and the upper portion 28 of the diagonal member 25, the portion corresponding to the passage floor 12 on the lower floor of the building 10 is used as the bottom portion 22 of the support column 21. Can only be. Therefore, it is possible to prevent the fixing of the support member 40 from being limited by the shape of the passage floor 12 or the like. In particular, the drainage floor 12a is provided in the passage floor 12, the lower end of the support column 21 can be applied to the drainage groove 12a, and damage to the waterproof processing or the like (surface) of the passage floor 12 can be suppressed.

  The diagonal member 25 can be rotated in the vertical plane along the outdoor direction around the lower connecting portion 26. Moreover, since the diagonal member 25 is provided with the expansion-contraction mechanism 29, the length can be adjusted. Therefore, regardless of the distance between the outer wall 11 and the column 21 of the building 10 and the distance between the upper floor passage floor 13 and the lower floor passage floor 12, the upper portion 28 of the diagonal member 25 is connected to the upper floor passage floor 13 and the outer wall. 11 can be adjusted to be supported by.

  The upper part 23 of the column 21 and the upper part 28 of the diagonal member 25 hit the passage floor 13 on the upper floor of the building 10, and the bottom 22 of the column 21 hits the passage floor 12 on the lower floor of the building 10. And since these upper parts 23 and 28 and the bottom part 22 are extended horizontally in the direction perpendicular | vertical to an outdoor direction, when the force which shifts the support | pillar 21 and the diagonal material 25 acts from the inside of a vertical surface, the force is an upper part. 23, 28, received by the bottom 22. Therefore, the fixing of the support member 40 can be further stabilized.

  The above-described embodiment can be modified as follows.

  In the above embodiment, the upper portion 23 of the support column 21, the upper portion 28 of the diagonal member 25, and the bottom portion 22 of the support column 21 extend horizontally in a direction perpendicular to the outdoor direction. However, the upper parts 23 and 28 and the bottom part 22 may contact the passage floor 13 on the upper floor and the passage floor 12 on the lower floor, respectively, in at least two places. Even in this case, when a force for shifting the support column 21 and the diagonal member 25 is applied from the vertical plane, the force is received by the upper portions 23 and 28 and the bottom portion 22. Therefore, the fixing of the support member 40 can be stabilized.

  -Instead of the rails 89 and 59 formed of "H" type steel materials, rails 89 and 59 formed of square steel materials may be employed.

  A soundproof material or an impact absorbing material such as a rubber tire may be provided on the surfaces of the rollers 45, 65A, 65B, and 55. According to such a configuration, generation of noise can be suppressed when the rail is moved with the rotation of the roller.

  The length of the support member 40 protruding in the outdoor direction by the adjustment mechanism 41 can be adjusted before or after the support member 40 is fixed by the fixing device 20.

  If the structure of the part where each support member 40 should be fixed in the building 10 is the same, the adjusting mechanism 41 can be omitted. In that case, even with the plurality of support members 40 having the same length, the plurality of rollers 45 and the plurality of pairs of rollers 65A and 65B can be arranged on the same straight line. As a result, the configuration of the support member 40 can be simplified.

  -In the building 10, when the part which repairs and finishes the handrail 14 is a part, the support member 40 and the fixing device 20 should just be installed only in the part. In that case, the rails 79 and 89 can be hung around the roller 45 and the rollers 65A and 65B without the support member 40 being retracted from the outdoor direction by the rotation mechanism 35. Accordingly, the structure can be simplified by omitting the retracting function in the rotation mechanism 35.

  -The structure of the fixing device 20 is not limited to the said embodiment, The structure etc. which replace with the diagonal material 25 and are provided with the support | pillar 21 can also be employ | adopted. In addition, a configuration in which the support member 40 is coupled to the plurality of support columns 21 may be employed.

  In the above embodiment, the rails 79, 89, 59 are arranged between the pair of flange portions 47, 67, 57, respectively. However, the rollers 45, 65A (65B), 55 may be formed with protrusions extending in the circumferential direction, and the rails 79, 89, 59 may be formed with grooves extending in the longitudinal direction and engaged with the protrusions. . Even with such a configuration, it is possible to prevent the rails 79, 89, and 59 from coming off from the rollers 45, 65A (65B), and 55, respectively.

  In the above embodiment, a configuration is adopted in which the rail 79 (89) is stretched over three to four rollers 45 (three to four pairs of rollers 65A and 65B). However, a configuration in which the rail 79 is stretched over the two rollers 45 or a configuration in which the rail 79 is stretched over five or more rollers 45 may be employed.

  The mobile scaffold device 19 may include only one of the lower scaffold 70 and the upper scaffold 80. In that case, since the roller and the rail need only be provided on one of the lower and upper portions of the support member 40, the configuration of the mobile scaffold device 19 can be simplified.

  The mobile scaffold device 19 can be applied to a detached house or the like. In that case, the fixing device 20 may be supported by a building structure.

  DESCRIPTION OF SYMBOLS 10 ... Building, 19 ... Mobile scaffolding device, 20 ... Fixing device, 21 ... Strut, 25 ... Diagonal material, 35 ... Rotation mechanism (switching mechanism), 40 ... Support member, 41 ... Adjustment mechanism, 45 ... Lower roller (No. 1) 1 roller), 55 ... upper roller (second roller), 59 ... upper rail (second rail), 65A, 65B ... nipping roller (second roller), 70 ... lower scaffold, 79 ... lower rail (first rail) , 80 ... upper scaffolding, 89 ... sandwiched rail (second rail).

Claims (11)

A mobile scaffold device installed in a building,
A plurality of support members fixed to the building and projecting in the outdoor direction;
In each of the support members, a roller rotatably supported at a position protruding in the outdoor direction;
A rail that is stretched over a plurality of the rollers and moved by rotation of the rollers;
A scaffold member coupled to the rail;
A mobile scaffold device comprising: A mobile scaffold device installed in a building,
A plurality of support members fixed to the building and projecting in the outdoor direction;
In each of the support members, a roller rotatably supported at a position protruding in the outdoor direction;
A rail spanned between two to four rollers and moved by rotation of the rollers;
A scaffold member coupled to the rail;
A mobile scaffold device comprising:   The mobile scaffold device according to claim 1, further comprising an adjustment mechanism that adjusts a length of the support member protruding in the outdoor direction.   The mobile scaffold device according to any one of claims 1 to 3, further comprising a switching mechanism that switches between a state in which the support member projects in the outdoor direction and a state in which the support member does not project. The roller rotates at a position projecting in the outdoor direction at a lower portion of each of the support members, and a first roller supported rotatably at the position projecting in the outdoor direction, and at an upper portion of each of the support members. A second roller movably supported,
The rail is spanned between the plurality of first rollers and moved by the rotation of the first roller, and the rail is spanned by the plurality of second rollers and moved by the rotation of the second roller. A second rail,
The said scaffold member contains the 1st scaffold member arrange | positioned under the said 1st rail, and the 2nd scaffold member arrange | positioned above the said 2nd rail. Mobile scaffolding equipment. The building includes a side wall, and an upper surface wall and a lower surface wall projecting from the side wall in the outdoor direction,
A support column connected to the support member and having upper and lower ends supported by the upper and lower walls, respectively.
An oblique member connected to the lower part of the support column and supported at the upper end by the upper wall and the side wall
The mobile scaffold device according to any one of claims 1 to 5.   The diagonal member according to claim 6, wherein the diagonal member is rotatably connected in a vertical plane along the outdoor direction around a connecting portion with the support column, and further includes an expansion / contraction mechanism that enables expansion / contraction. Mobile scaffold device.   The mobile scaffold device according to claim 6 or 7, wherein a horizontal portion extending horizontally in a direction intersecting the outdoor direction is provided at each of an upper end and a lower end of the support column and an upper end of the diagonal member. A mobile scaffold device installed in a building,
A plurality of support members fixed to the building so as to project outward,
In each of the support members, a roller rotatably supported at a position protruding in the outdoor direction;
In a state installed in the building, a rail that is stretched over the plurality of rollers and moved by rotation of the rollers;
A scaffold member coupled to the rail;
A mobile scaffold device comprising:   The mobile scaffolding device according to claim 9, further comprising an adjustment mechanism that adjusts a length of the support member protruding in the outdoor direction in a state where the building is installed in the building.   The mobile scaffold device according to claim 9 or 10, further comprising a switching mechanism that switches between a state in which the support member projects in the outdoor direction and a state in which the support member does not project in the state where the building is installed in the building.

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