JP5113402B2 - Climbing scaffold equipment - Google Patents

Description

  The present invention relates to a climbing scaffolding device that is arranged outside a building frame when building a building and is moved to the upper floor side as the building work progresses.

  When building a medium- or high-rise concrete structure, a scaffolding device is placed outside the building frame to perform various finishing operations such as painting on the exterior of the building. It is performed by a person on a scaffold board provided in the scaffold device. Since the building construction work of the building progresses sequentially to the upper layer side, the scaffold device is climbed and moved to the upper floor side by a vertical movement device such as a crane and a hoist as the upper building construction work proceeds.

As such a climbing type scaffolding device, as described in Patent Document 1, there is one in which a fastener fastened to a building frame is attached to a unit frame to which a scaffolding plate is attached, As described in Patent Document 2, there is one in which a rod-like bracket fastened to a building frame is attached to a scaffold unit to which a scaffold plate is attached so as to be swingable around a pin.
JP 2003-184301 A JP 2005-248574 A

  As described in Patent Document 1, when the fastener is fixed to the unit frame so as to protrude toward the building frame, the scaffold device is moved up by a driving means such as a crane or a hoist on the upper floor side In doing so, it is necessary to move the scaffold device horizontally in a direction away from the building frame in order to avoid interference between the fastener and the building frame during climbing movement. On the other hand, as described in Patent Document 2, a rod-like bracket is attached to the scaffold unit so that it can swing around the pin at its outer end, and the building side end of the bracket is attached to the outer surface of the building frame. In other words, if the bracket receiver with which the inner end engages is protruded, the bracket unit can be attached between the two pins of the bracket receiver by moving the scaffold unit downward, and the climbing unit that moves the scaffold unit upward Sometimes it is not necessary to move the scaffold unit horizontally in the direction away from the building frame.

  However, when the bracket is engaged and fixed to the bracket receiver, the bracket cannot be automatically engaged between the two pins of the bracket receiver by simply moving the scaffold unit downward. It is necessary for the operator to manually operate the bracket, and it is not easy for the operator to manually operate the heavy bracket. Moreover, since the bracket is attached at the inner end to a bracket receiver that protrudes from the outer surface of the building frame, the inner end must be protruded from the scaffold unit toward the building frame. It is necessary to ensure a large gap between the scaffold unit and the outer surface of the building frame, since the support must be protruded to the outer surface. For this reason, the distance between the scaffolding board to be mounted on the scaffold unit and the building frame is increased, and it is necessary for the worker to get out of the scaffold unit toward the building frame and perform the finishing work while avoiding the gap. There is a problem that workability is bad. In addition, when the scaffold unit is moved upward to the upper floor side, the bracket is swung at the outer end portion, so that the upward movement becomes unstable.

  The objective of this invention is providing the climbing type | formula scaffold apparatus which can improve the workability | operativity of the finishing operation | work with respect to the outer surface of a building frame.

  Another object of the present invention is to provide a climbing type scaffolding device capable of reducing the gap between the scaffold board and the building frame under a state of being fixed to the building frame.

  Another object of the present invention is to provide a climbing type scaffolding device that can be stably moved to the upper floor side.

The climbing type scaffolding device of the present invention includes an inner vertical strut on the side of a building frame, an outer vertical column that is spaced outward from the inner vertical column with respect to the building frame, and connects the inner vertical column and the outer vertical column. A plurality of frames each having a plurality of supporting beams, and a scaffold unit formed by connecting them in a state of being arranged in parallel with each other, and a portion of the inner vertical strut facing the scaffold unit. At least two support fittings that are respectively fixed and provided with horizontal support pins along the building frame, and are respectively pin-coupled to the support fittings by the support pins at the center portion, and fixed to the outer vertical struts. A support position where the inner end is fastened to the building frame with the outer end contacting the contact member, and a standing position along the inner vertical column At least two connecting rods to pivot between being pinned by the arm pin outward end of each of said connecting rods, between the separate position to leave the engagement and position meshing meshing with said abutment member A clamp arm that rotates at a position where the coupling bar is engaged with the contact member when the coupling bar is set at the support position, and the coupling bar is set at the upright position. It is characterized by moving to the upper layer side.

  In the climbing type scaffolding device of the present invention, the horizontal barycentric position of the connecting bar when the connecting bar is in the standing position is shifted to the outer vertical column side than the support pin. Features.

  In the climbing type scaffolding device of the present invention, the position of the center of gravity of the clamp arm when each of the connecting bar members is in the standing position and the clamp arm is in the separated position is closer to the building frame than the arm pin. In this case, the arm pin is shifted upward.

  In the climbing type scaffolding device of the present invention, when each of the connecting rods reaches the standing position, at least a part of each of the connecting rods overlaps the inner vertical column in the horizontal direction. It is characterized by.

  According to the present invention, since the connecting rod for connecting the scaffold unit to the building frame is pin-coupled to the inner vertical support column of the scaffold unit at the center portion thereof, the scaffold unit is moved in the vertical direction outside the building frame. When moving to the vertical position, the connecting bar is placed in an upright position, so that the scaffolding unit moves up and down without moving the scaffold unit away from the building. It can be easily moved away. Thereby, the finishing operation | work with respect to a building frame can be performed efficiently.

  FIG. 1 is a schematic perspective view showing a set of scaffold units constituting a climbing scaffold device according to an embodiment of the present invention.

  The scaffold unit 10 shown in FIG. 1 has four frame bodies 11. Each frame 11 is formed by connecting an inner vertical strut 12 and an outer vertical strut 13 parallel to the inner vertical strut 12 by five support beams 14, and the support beam 14 is the lowermost side in FIG. Reference numerals (a) to (e) are attached from the top to the top. Under the state in which the scaffold unit 10 is arranged outside the building frame, the inner vertical column 12 is positioned on the building frame side, and the outer vertical column 13 is outside the inner vertical column 12 with respect to the building frame. Will be located.

  Each vertical support 12 and 13 has a length of about 7 m 70 cm and is formed by a square pipe having a width dimension of 6 cm × 6 cm, and the horizontal support beam 14 is formed by a round pipe having an outer diameter of about 4.3 cm. Yes. The distance between the axes of the support beams 14 is about 190 cm, and the distance between the axes of the inner vertical column 12 and the outer vertical column 13 is about 72 cm. However, these dimensions can be set arbitrarily.

  The four frame bodies 11 constituting the scaffold unit 10 are formed by mutually connecting the frame bodies 11 adjacent to each other in the horizontal direction by the brace 9, and two support beams adjacent in the horizontal direction in the scaffold unit 10. A scaffolding plate 15 is attached to 14. The scaffold plate 15 is also referred to as a cloth plate and has a rectangular shape as described in Patent Document 1, and hooks that are detachably engaged with the support beam 14 are provided at both ends, as shown in FIG. The scaffolding plate 15 is attached to the lower support beams 14a to 14d except for the uppermost support beam 14e. However, the scaffold plate 15 may be mounted on the uppermost support beam 14e. In addition, although the length of the scaffold board 15 is about 180 cm, the scaffold board 15 of another dimension can be used. Each frame 11 is connected to each other by a horizontal bar (not shown) in addition to the brace 9.

  As shown in FIG. 1, a single U-shaped steel material 16 extending in the horizontal direction is fixed to the scaffold unit 10, and the steel material 16 is positioned on the inner side of each inner vertical support column 12 to be arranged on the inner vertical side. It is fixed to the column 12 with a fastening bracket 17. A single U-shaped steel material 18 is fixed to the inside of each outer vertical column 13 substantially parallel to the steel material 16 by a fastening bracket 19, and both the steel materials 16 and 18 have substantially the same length. Yes, slightly projecting from the left and right of the scaffold unit 10 as shown in FIG. In FIG. 1, two fasteners 17 and 19 are shown corresponding to both ends of the respective steel materials 16 and 18, but the fasteners 17 and 19 are shown corresponding to the respective vertical columns 12 and 13. You may make it attach 19 19 4 each.

  Although FIG. 1 shows a scaffold unit 10 having four frames 11, the scaffold unit 10 can be formed by any number of frames 11. In addition, as shown in FIG. 1, one set of scaffolding units 10 may be arranged outside the building frame alone, and two sets of scaffolding units 10 may be connected up and down on the outside of the building frame. It may be arranged.

  2 is a front view of the scaffold unit 10 showing an enlarged view of the scaffold unit 10 shown in FIG. 1 from the right side, and FIG. 3 is a front view of the scaffold unit 10 showing a part of FIG. FIG. 4 is a sectional view taken along line AA in FIG.

  Plate-shaped support fittings 21 are fixed to the left and right ends of the steel material 16 so as to oppose each other, and the support fitting 21 is attached to the U-shaped fixing member 22 fitted to the outside of the steel material 16 and the fixing member 22. The support member 21 is welded to the fixing member 22. As described above, two support fittings 21 are fixed to both ends of the steel material 16, but any number of two or more support fittings 21 may be fixed to the steel material 16. A support pin 24 is attached to the support metal 21 in the horizontal direction and along the building frame, and a connecting rod 25 is rotatably connected to the support pin 24. The connecting bar 25 is pin-coupled to the support fitting 21 by a support pin 24 at the center in the length direction, and FIG. 3 shows a state in which the connecting bar 25 is in an upright position along the inner vertical column 12. .

  As shown in FIG. 4, the connecting bar 25 is made of an I-type steel material, and the support fittings 21 attached to the respective fixing members 22 are formed of two plates so as to sandwich the connecting bar 25. Yes. As the connecting rod 25, three or more support fittings 21 may be attached to the frame 11, and the connecting rod 25 may be provided on each of the support fittings 21. The number of bars 25 is not limited to two.

  The connecting rod 25 is rotated about 90 degrees in the clockwise direction in FIG. 3 from the state shown in FIG. 3, and when the connecting rod 25 is turned to a substantially horizontal support position, the connecting rod 25 is rotated. 3 is an inward end portion that protrudes toward the building housing 30 side, and a lower side portion is on the outside with respect to the building housing 30 and contacts the steel material 18 as a contact member. It becomes. A clamp arm 27 is pivotally connected to the outer end side of the connecting rod 25 by an arm pin 26. The clamp arm 27 has a meshing position for meshing with the steel material 18 as the contact member in a state where the connecting bar 25 is in a horizontal position and is in contact with the steel material 18 as the contact member, and a separation position for releasing the meshing. Rotate between.

  FIG. 5 is a front view of the scaffold unit 10 showing a state in which the connecting bar is in a substantially horizontal state and the clamp arm 27 is in a separated position, and FIG. 6 is a state in which the connecting bar is in a substantially horizontal state. It is a front view which shows the state which the clamp arm 27 meshed | engaged with the steel material 18 as a contact member.

  As shown in FIG. 3, the scaffold unit 10 can be moved in the vertical direction by a vertical movement device (not shown) such as a crane or a hoist under the state where the connecting bar 25 is in the standing position. As shown in FIG. 3, the center of gravity Ga of the connecting rod 25 is the center in the length direction and the width direction when the length of the connecting rod 25 is L and the width is W (L / 2, W / 2) Under the state where the connecting bar 25 is in the upright position as shown in FIG. 3, the support pin 24 is located on the side of the building housing 30 with respect to the center of gravity Ga and is located below the center of gravity Ga. ing. That is, the center of gravity Ga is shifted to the outer vertical column 13 side from the support pin 24 and slightly above the support pin 24. Therefore, under the state where the connecting rod 25 is in the standing position, the connecting rod 25 falls in the direction toward the steel material 16 and comes into contact with the steel material 16, so that the standing position is maintained in that state. Thereby, even if the scaffold unit 10 is moved up and down by the vertical movement device in the state of the standing position, the connecting bar 25 is held in the standing position without rotating to the building housing 30 side.

  Thus, when the connecting bar 25 is in the standing position, the connecting bar 25 partially overlaps or overlaps the inner vertical support column 12 in the horizontal direction as shown in FIG. The length of the connecting bar 25 protruding toward the building housing 30 can be made shorter than the width dimension W of the connecting bar 25. In FIG. 3, a portion indicated by a broken line of the inner vertical column 12 overlaps the connecting bar 25.

  A weight 28 is provided at the base end portion of the clamp arm 27, and the center of gravity Gb of the clamp arm 27 has a building housing rather than the arm pin 26 when the connecting bar 25 is in the upright position as shown in FIG. It is shifted to the 30 side and above the arm pin 26. Therefore, when the connecting bar 25 is in the standing position, the clamp arm 27 holds the separation position.

  To attach the scaffold unit 10 to the building frame, the connecting rod 25 is moved clockwise as shown in FIG. 5 with the scaffold unit 10 set to a predetermined height by a vertical movement device such as a crane. It is assumed that the outer end of the connecting bar 25 is in contact with the steel material 18 as a contact member. Since the center of gravity Ga is slightly deviated from the position of the support pin 24, this rotation operation is easily performed manually by the operator without applying a large load. Can do. In this way, the connecting rod 25 is fastened to the building frame 30 by passing the anchor bolt 31 through the inner end of the connecting rod 25 under the state that the connecting rod 25 is substantially horizontal. Thereby, the connection bar 25 is fastened to the building housing 30, and the scaffold unit 10 is fixed to the building housing 30 by the two connection bars 25 provided on the left and right of the upper end portion thereof. In the process of rotating the connecting rod 25 from the standing position shown in FIG. 3 to the horizontal position shown in FIG. 5, the center of gravity Gb of the clamp arm 27 is on the right side in FIG. The arm 27 holds the separation position.

  As shown in FIG. 5, when the outer end portion of the connecting rod 25 is in contact with the lower surface side of the steel material 18, the load of the scaffold unit 10 is applied to the connecting rod 25 at the portions of the two steel materials 16 and 18. Since it is supported, the scaffold unit 10 is surely supported by the building frame 30 via the connecting bar 25, but in order to further improve the mounting safety of the scaffold unit 10, the clamp arm 27 is shown in FIG. The clamp arm 27 is engaged with the steel material 18 by rotating from the separation position shown in FIG. Since the position of the center of gravity Gb of the clamp arm 27 is slightly shifted with respect to the position of the arm pin 26, this rotating operation is easily performed manually without applying a large load to the operator. Can do.

  When finishing work such as painting work on the outer surface of a building using the above-described climbing type scaffolding device, the scaffold unit 10 is lifted by a crane or the like under a state where a predetermined number of floors of the building are built. As shown in FIG. 3, the scaffolding unit 10 is positioned so that the support bracket 21 is slightly higher than the floor portion of the building housing 30 under a state of being hung outside the building housing 30. Positioning. Under this state, the connecting rod 25 in the standing position is rotated about 90 degrees clockwise to the support position shown in FIG. As a result, the outer end portion of the connecting bar 25 comes into contact with the lower surface of the steel material 18 as a contact member. When the connecting bar 25 is rotated from the standing position shown in FIG. 3 to the support position shown in FIG. 5, the clamp arm 27 holds the separated position from the positional relationship between the arm pin 26 and the center of gravity Gb.

  As shown in FIG. 5, the inner end portion of the connecting rod 25 is fastened to the floor portion of the building frame 30 by the anchor bolt 31 in a state where the connecting rod 25 is in the support position. Thereby, the scaffold unit 10 is fixed to the building housing 30 by the two connecting rods 25, and the load of the scaffold unit 10 is supported by the building housing 30 via the two connecting rods 25. The Under this state, when the clamp arm 27 is rotated from the separation position shown in FIG. 5 to the engagement position shown in FIG. 6, the clamp arm 27 is engaged with the steel material 18 as the contact member. Under this state, the worker can perform the finishing work on the scaffolding plate 15.

  As shown in FIGS. 5 and 6, when the connecting rod 25 is rotated to the support position and the connecting rod 25 does not become substantially horizontal, a jack is disposed instead of the spacer 32, and the connecting rod By adjusting the vertical distance between the right end of the material 25 in FIGS. 5 and 6 and the building housing 30, the connecting rod 25 can be set in a substantially horizontal state.

  In order to move the scaffold unit 10 upward as the building work progresses, the scaffold unit 10 is lifted by a crane or the like. In that case, while the scaffold unit 10 is supported by a crane or the like, the anchor bolt 31 is removed and the clamp arm 27 is turned to the separation position, and then the connecting rod 25 is raised from the horizontal position. Rotate until. When the connecting bar 25 is rotated to the upright position, a part of the connecting bar 25 enters the scaffold unit 10 and overlaps the inner vertical column 12, so that the scaffold unit 10 is lifted by a crane or the like. Interference between the connecting bar 25 and the building frame 30 can be avoided simply by moving it.

  FIG. 7 is a schematic view showing a state in which two scaffold units are vertically connected and arranged outside the building. For example, the lower scaffold unit 10a is arranged outside the building housing 30. Then, when the construction on the upper floor side proceeds, the other scaffold unit 10b is lifted and connected to the upper side of the scaffold unit 10a by a vertical movement device such as a crane. In FIG. 7, the scaffold unit 10 b is fastened to the building frame 30 on the upper floor side by the connecting rod 25 provided on the upper scaffold unit 10 b, and the connecting rod 25 of the scaffold unit 10 b is the scaffold unit. It is attached to the lower side of the frame 11 than the connecting rod 25 of 10a. Thus, the connecting rod 25 can be attached to any position in the vertical direction of the frame body 11. In FIG. 7, the frame body 11 is connected by the joint metal fitting 41 between the building housing 30 and the scaffolding units 10 a and 10 b other than the building housing 30 to which the scaffolding units 10 a and 10 b are connected by the connecting bar 25. The distance between the building frame 30 is set, and the frame 11 and the building frame 30 are connected to each other.

  When the scaffolding units 10a and 10b are connected to the upper and lower two stages and arranged outside the building housing 30, the floor wall of the building housing 30 corresponding to the scaffolding unit 10b is provided for the upper scaffolding unit 10b. Until it is completed, the scaffold unit 10b is suspended by a crane or the like and connected to the building frame only by the joint fitting 41. After the corresponding building frame 30 is completed, the scaffold unit 10b is connected by the connecting bar 25. It may be fastened to the building housing 30. Further, a plurality of connecting rods 25 may be attached to one scaffold unit while being shifted up and down.

  The present invention is not limited to the embodiments, and various modifications can be made without departing from the scope of the invention. For example, the fastening between the inner end of the connecting bar 25 and the building housing 30 is not limited to the anchor bolt 31, and other fastening members may be used. Further, the steel material 18 is provided as an abutting member with which the clamp arm 27 meshes, and the abutting member is formed by one steel material 18, but each clamp arm 27 meshes with a short block-shaped member. An abutting member may be formed.

It is a schematic perspective view which shows one set of scaffold units which comprise the climbing type | system | group scaffold apparatus which is one embodiment of this invention. It is a front view of the scaffold unit which expands and shows the state which looked at the scaffold unit shown by FIG. 1 from the right side. It is a front view of the scaffold unit which expands and shows a part of FIG. It is sectional drawing which follows the AA line in FIG. It is a front view of a scaffold unit showing a state where a connecting bar is in a substantially horizontal state and a clamp arm is in a separated position. It is a front view which shows the state which the clamp arm meshed | engaged with the steel material as a contact member in the state in which the connection bar became the substantially horizontal state. It is the schematic which shows the state which connected the two scaffold units up and down, and has arrange | positioned on the outer side of the building.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Scaffolding unit 11 Frame 12 Inner vertical support | pillar 13 Outer vertical support | pillar 14 Support beam 15 Scaffold board 16 Steel material 18 Steel material (contact member)
21 support bracket 22 fixing member 23 screw member 24 support pin 25 connecting rod 26 arm pin 27 clamp arm 30 building frame

Claims (4)

An inner vertical column on the side of the building frame, an outer vertical column that is separated from the inner vertical column toward the outside of the building frame, and a plurality of support beams that connect the inner vertical column and the outer vertical column. A scaffold unit formed by connecting a plurality of frames in a state of being arranged parallel to each other;
At least two support fittings respectively fixed to the scaffold unit so as to oppose each other to the inner vertical column part, and provided with horizontal support pins respectively along the building frame;
Each of the support pins is pin-coupled to the support bracket at the center portion, and the inner end portion is in contact with the abutment member fixed to the outer vertical support column while the outer end portion is in contact with the building housing. At least two connecting rods that rotate between a support position to be fastened and an upright position along the inner vertical strut ;
A clamp arm that is pin-coupled by an arm pin to the outer end of each of the connecting rod members and rotates between a meshing position that meshes with the contact member and a separation position that disengages the meshing;
When the connecting bar is set to the support position, the clamp arm is engaged with the abutting member, and the connecting bar is moved to the upper layer side in a state where the connecting bar is set to the upright position. Climbing type scaffolding device to do. 2. The climbing type scaffolding device according to claim 1 , wherein a horizontal barycentric position of the connecting bar when each of the connecting bars is in the standing position is shifted to the outer vertical column side than the support pin. A climbing type scaffolding device characterized by that. 3. The climbing type scaffolding device according to claim 1 , wherein the center of gravity of the clamp arm when each of the connecting bar members is in the upright position and the clamp arm is in the separated position is more than the arm pin. A climbing type scaffolding device that is shifted to the building housing side and above the arm pin. The climbing type scaffolding device according to any one of claims 1 to 3 , wherein at least a part of each of the connecting bars is the inner vertical column when each of the connecting bars is in the standing position. A climbing type scaffolding device characterized by overlapping in the horizontal direction.

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