JP2013221362A - Unit floor lifting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simultaneously lift a plurality of unit floors supported in a layered state.SOLUTION: A unit floor lifting device, which supports a plurality of unit floors 1 in a layered state and lifts the supported unit floors 1, includes: receiving girders 40 on each of which the unit floor 1 is mounted; fixed columns 20 which support the plurality of unit floors 1 in a layered state through the receiving girders 40; movable columns 30 which are installed so as to rise and fall, and rise while supporting the plurality of unit floors 1 in a layered state through the receiving girders 40; a plurality of pins 26, 33 which are installed to the fixed columns 20 and the movable columns 30 at vertical intervals; hooks 42 each of which is movably mounted to the receiving girder 40 and displaces between a support position where the receiving girder 40 is supported by the pin 26 and a retreat position where the hook 42 does not vertically overlap with the pin 26; and hooks 44 each of which is movably mounted to the receiving girder 40 and displaces between a support position where the receiving girder 40 is supported by the pin 33 and a retreat position where the hook 44 does not vertically overlap with the pin 33.

Description

  The present invention relates to a unit floor lifting apparatus.

  2. Description of the Related Art A unit floor lifting device that lifts a unit floor in which equipment such as a deck, a beam, and piping are unitized and stocks them in layers is known (for example, see Patent Document 1). In the unit floor lifting device described in Patent Document 1, the unit floor is lifted by a chain block installed at the top of the frame. Here, a load receiving arm is rotatably provided on the support column of the frame. When the unit floor is raised, the load receiving arm is retracted from the rising path of the unit floor, and the load is loaded after the unit floor is raised. The receiving arm returns to the position where it receives the load on the unit floor.

JP 2009-249980 A

  In the unit floor lifting device described in Patent Document 1, the unit floor must be lifted one unit at a time, and a plurality of unit floors cannot be lifted simultaneously.

  This invention is made | formed in view of the said situation, and makes it a subject to provide the lifting apparatus of the unit floor which can lift several unit floors supported in layer form all at once.

  In order to solve the above problems, a unit floor lifting apparatus according to the present invention is a unit floor lifting apparatus that supports a plurality of unit floors in layers and lifts the supported unit floors. A receiving member on which the plurality of unit floors are supported in a layered manner via the receiving member, and a plurality of unit floors that are supported in a layered manner via the receiving member. A moving column that rises, a plurality of first support portions that are spaced apart in the vertical direction on the fixed column, and a plurality of second support portions that are spaced apart in the vertical direction on the movable column. And a first movable portion that is movably attached to the receiving material and is displaced to a supporting position that supports the receiving material on the first supporting portion, and a retracted position that does not overlap with the first supporting portion. And movably attached to the receiver Comprises a support position for supporting the receiving material on the second support portion, and a second movable portion which is displaced to the retracted position does not overlap vertically with the second supporting portion.

  The unit floor lifting device may include a jack for moving the moving column up and down.

  In the unit floor lifting apparatus, the first movable portion and the second movable portion may be hooks rotatably attached to the receiving member, and the first support portion and the The second support part may be a pin that is fixed to the movable column or the fixed column and on which the hook is hooked.

  The unit floor lifting device may include a rotation preventing portion that is provided on the receiving member and stops the rotation of the hook in a direction away from the pin to position the hook at the support position. The hook may be rotated to the retracted position by the upper pin when the movable column moves up and down. In addition, the hook may be configured to rotate in a direction approaching the rotation stopper by its own weight.

  According to the present invention, a plurality of unit floors supported in a layered manner can be lifted all at once.

It is an elevation which shows the lifting apparatus of the unit floor which concerns on one Embodiment. It is an elevation view (2 arrow view of FIG. 1) which shows the unit floor lifting apparatus which concerns on one Embodiment. It is a top view which shows the lifting apparatus of the unit floor which concerns on one Embodiment. It is a plane sectional view expanding and showing a longitudinal direction end part of a fixed pillar, a movement pillar, and a receiving girder. FIG. 5 is a view taken in the direction of arrow 5 in FIG. 4. The state where the movable column 30 is rising is shown. It is an elevation sectional view showing the state where movable pillar 30 is rising. It is an elevation sectional view showing the construction procedure of the unit floor. It is an elevation sectional view showing the construction procedure of the unit floor. It is an elevation sectional view showing the construction procedure of the unit floor. It is an elevation sectional view showing the construction procedure of the unit floor. It is an elevation sectional view showing the construction procedure of the unit floor. It is an elevation sectional view showing the construction procedure of the unit floor. It is an elevation sectional view showing the construction procedure of the unit floor. It is an elevation sectional view showing the construction procedure of the unit floor.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an elevation view showing a lifting device 10 of a unit floor 1 according to an embodiment, and FIG. 2 is an elevation view (a view taken along arrow 2 in FIG. 1) showing the lifting device 10. FIG. 3 is a plan view showing the lifting apparatus 10. As shown in these drawings, the lifting device 10 is installed in a building 2 under construction, and lifts a rectangular unit floor 1 in a plan view and stocks it in layers.

  The lifting device 10 is installed in a rectangular space 3 in a plan view extending in the vertical direction in the building 2, and is connected to the housing of the building 2 by a wall connection 4 at the floor level of each floor. Further, a temporary elevator 5 and a scaffold 6 are installed in the space 3 in which the lifting device 10 is installed. The scaffold 6 is installed so as to surround the lifting device 10. In addition, illustration of the scaffold 6 is abbreviate | omitted in FIG.2 and FIG.3.

  The lifting device 10 includes four fixed pillars 20 respectively disposed at four corners of a rectangular space in plan view, and four movable pillars 30 (corresponding to the respective fixed pillars 20). 2 and FIG. 3), a plurality of pairs of receiving girders 40 arranged in pairs on each layer, and a gantry 50 that supports the lifting device 10. The fixed column 20 is connected to the housing of the building 2 by a wall connecting 4. In addition, each fixed column 20 accommodates each movable column 30 so as to be movable up and down.

  The pair of receiving girders 40 in each layer is stretched over the left and right fixed columns 20 in FIG. 2, and the unit floor 1 is placed on the pair of receiving girders 40 in each layer. Each unit floor 1 has a structure in which a deck 8 is stretched on a plurality of parallel beams 7, and is mounted on a pair of receiving beams 40 in each layer so that the beams 7 are orthogonal to the receiving beams 40. (See FIGS. 2 and 3).

  The gantry 50 includes four columns 52 arranged immediately below each fixed column 20, a plurality of beams 54 connecting the upper and lower sides of the four columns 52, and hydraulic pressure arranged directly below each moving column 30. A jack 56 (see FIG. 2) is provided. The hydraulic jack 56 supports the moving column 30 and raises the moving column 30 by extending, and lowers the moving column 30 by contracting.

  Here, when the movable column 30 is raised by the hydraulic jack 56, the receiving girder 40 and the unit floor 1 above it that are supported by the fixed column 20 rise, and then the receiving column 40 and the unit floor 1 above it. Is supported by the fixed column 20, and the configuration for that will be described below.

  FIG. 4 is an enlarged plan sectional view showing one end portion in the longitudinal direction of the fixed column 20, the movable column 30, and the receiving beam 40, and FIG. 5 is a view taken in the direction of arrow 5 in FIG. FIG. 6 is an elevational sectional view showing a state in which the movable column 30 is raised.

  As shown in FIG. 4, the fixed column 20 has a configuration in which a pair of side plates 21 are coupled by a frame 22 having an H-shaped cross section. The pair of side plates 21 protrudes from the frame 22 toward the receiving beam 40, and the moving column 30 is arranged in a space surrounded by the pair of side plates 21, the frame 22, and the receiving beam 40. In a space surrounded by the pair of side plates 21, the frame 22, and the receiving girder 40, a plurality of pairs of guide rollers 23 and 24 of each layer are disposed. One guide roller 23 is attached to one side plate 21, and the other guide roller 24 is attached to the other side plate 21. The guide roller 23 is arranged to be rotatable around an axis orthogonal to the side plate 21, and the guide roller 24 is arranged to be rotatable about an axis orthogonal to the rotation axis of the guide roller 23.

  The movable column 30 has a configuration in which a pair of side plates 31 are coupled by a frame 32 having an H-shaped cross section. The pair of side plates 31 protrudes from the frame 32 to the receiving beam 40 side. Here, the guide rollers 23 and 24 are arranged to face each other with the web 32A of the frame 32 interposed therebetween. Further, the guide roller 23 is disposed so that the peripheral surface thereof is in contact with the pair of flanges 32B, and the guide roller 24 is disposed so that the peripheral surface thereof is in contact with the web 32A. The raising and lowering of the moving column 30 is guided.

  A pair of hooks 42 and a hook 44 disposed between the pair of hooks 42 are provided at one longitudinal end of the receiving beam 40. The pair of hooks 42 and the hooks 44 are rotatably supported by pins 46 fixed to one end in the longitudinal direction of the receiving beam 40. The pin 46 is disposed so as to be orthogonal to the longitudinal direction of the receiving beam 40, and the pair of hooks 42 and hooks 44 are rotatable around an axis orthogonal to the longitudinal direction of the receiving beam 40. Further, it is supported at one end in the longitudinal direction of the receiving beam 40.

  Each side plate 21 of the fixed column 20 is provided with a U-shaped bracket 25 into which the tip of the hook 42 enters, and a pin 26 for hooking the hook 42 is fixed to the bracket 25. In addition, a pin 33 for hooking a hook 44 is fixed to the pair of side plates 31 of the movable column 30. The pins 26 and 33 are parallel to the rotation axes of the hooks 42 and 44.

  As shown in FIGS. 5 and 6, the hooks 42 and 44 are bent with the rotation axis as a boundary. Arc-shaped concave portions 42B and 44B for engaging with the pin 26 or the pin 33 are formed at the lower ends of the engaging portions 42A and 44A extending from the pivot shafts of the hooks 42 and 44 toward the fixed column 20 and the moving column 30. Is formed. Further, a side plate 47 to which the pin 46 is fixed is provided at one end of the receiving beam 40, and a stopper 48 that prevents the hooks 42 and 44 from rotating is provided on the side plate 47. When the hooks 42 and 44 rotate counterclockwise in the drawing and the postures of the engaging portions 42A and 44A become horizontal, the stopper 48 comes into contact with the upper portions of the engaging portions 42A and 44A. 44 is prevented from rotating counterclockwise in the figure. In this state, the recesses 42 </ b> B and 44 </ b> B of the hooks 42 and 44 can be engaged with the pin 26 or the pin 33.

  The pins 26 and 33 are arranged at equal intervals, and the interval between the pins 26 and the interval between the pins 33 are set to be the same. Further, the heights of the pins 26 and 33 are set to be different in a state where the movable column 30 is lowered.

  Further, the weight balance is set so that the hooks 42 and 44 are heavier on the opposite side than the engaging portions 42A and 44A. Therefore, the hooks 42 and 44 are in a state in which the engaging portions 42A and 44A are pressed against the stopper 48 unless the engaging portions 42A and 44A are lowered, that is, the engaging portions 42A and 44A are horizontal. Maintained in a posture.

  7 to 14 are elevational sectional views showing a construction procedure of the unit floor 1. As shown in FIG. 7, on the first floor of the building 2, the traveling rails 11 of the moving carriage 9 are installed so as to extend from the outside of the lifting device 10. 1 is carried into the lowest layer of the lifting device 10. In addition, an overhead crane 12 is installed on the first floor of the building 2, and materials and the like to be assembled to the unit floor 1 with the overhead crane 12 are carried into the lifting device 10.

  In the lifting apparatus 10, the unit floor 1 is stocked in layers, and fireproof coating is applied, or equipment such as piping is attached to complete the unit floor 1 sequentially. Then, the uppermost unit floor 1 is transported to an installation location in the building 2 by a crane. Also, the uppermost girder 40 is lowered to the first floor of the building 2 with a crane. When the uppermost unit floor 1 is unloaded from the lifting device 10, the unit floors 1 stocked in layers are raised all at once, and the newly assembled unit floor 1 is carried into the lowermost layer.

  Here, when the unit floor 1 carried into the lifting device 10 is stocked in layers, or when the plurality of unit floors 1 stocked in layers in the lifting device 10 are lifted, they are moved by the hydraulic jack 56. The column 30 is raised and lowered. Hereinafter, a procedure for lifting the unit floor 1 will be described.

  As shown in FIG. 8, the unit floor 1 of each layer is placed on a receiving beam 40 supported by fixed pillars 20 on both sides. Here, the hooks 42 for the fixed columns 20 that are rotatably provided at both ends of the receiving beam 40 are hooked on the pins 26 provided on the fixed columns 20, so that the stoppers 48 are detached from the pins 26. By preventing the rotation, the receiving girder 40 of each layer and the unit floor 1 thereon are supported by the fixed column 20. Further, the hooks 44 for the movable pillars 30 rotatably provided at both ends of the receiving beam 40 stand by in a state where they are pressed against the stopper 48 by their own weight.

  As shown in FIG. 9, when the moving column 30 is raised by the hydraulic jack 56, the hook 44 for the moving column 30 is hooked on the pin 33 provided on the moving column 30, and in this state, the stopper 48 By preventing rotation in a direction away from the pin 33, the receiving girder 40 and the unit floor 1 thereon are supported by the movable column 30. Thereby, the multi-layer unit floor 1 rises all at once.

  Then, as shown in FIG. 10, when the receiving girder 40 is raised by the moving column 30, the hook 42 for the fixed column 20 is detached from the pin 26, and then the engaging portion 42 </ b> A is lowered by the upper pin 26. Is rotated. Thereby, the hook 42 can be moved to the upper side from the upper pin 26, and the receiving beam 40 can be raised to an upper layer.

  Then, as shown in FIG. 11, when the movable column 30 is raised by the hydraulic jack 56 until the hook 42 for the fixed column 20 passes through the upper pin 26, the hook 42 for the fixed column 20 is moved by its own weight. It rotates so that the engaging part 42A may become horizontal. Then, as shown in FIG. 12, the moving column 30 is lowered by the hydraulic jack 56. As a result, the hook 42 for the fixed pillar 20 is hooked on the upper pin 26 and is prevented from rotating in a direction away from the pin 26 by the stopper 48, so that the receiving girder 40 of each layer and the unit floor 1 thereon are fixed. 20 is supported.

  Then, as shown in FIG. 13, when the receiving beam 40 is lowered by the moving column 30, the hook 44 for the moving column 30 is detached from the pin 33 and then the engaging portion 44 </ b> A is lowered by the upper pin 33. Is rotated. Thereby, the pin 33 can be moved to the lower side than the lower hook 44, and the moving column 30 can be lowered to the original position.

  As shown in FIG. 14, when the moving column 30 is lowered by the hydraulic jack 56 until the pin 33 passes the hook 44 for the lower moving column 30, the hook 44 for the moving column 30 is moved by its own weight. The engaging portion 44A rotates so as to be horizontal.

  As described above, in the lifting apparatus 10 according to the present embodiment, the fixed pillar 20 that supports the plurality of unit floors 1 in layers via the receiving girders 40, and the receiving beams 40 in the plurality of unit floors 1 in layers. And a plurality of pins 26 and 33 are provided at predetermined intervals in the vertical direction on the fixed column 20 and the moving column 30, respectively. The hooks 42 and 44 that are hooked are provided to be rotatable. Here, the hooks 42 and 44 are configured to be displaced between a support position where the receiving beam 40 is supported by the pin 26 or the pin 33 and a retreat position where the pin 26 or the pin 33 does not overlap with the pin 26 or the pin 33. Accordingly, the plurality of unit floors 1 can be supported on the fixed column 20 in a layered manner by positioning the hook 42 for the fixed column 20 at the support position. Further, the unit floor 1 is lifted up by raising the moving column 30 with the hook 44 for the moving column 30 positioned at the support position and the hook 42 for the fixed column 20 positioned at the retracted position. After that, the hook 42 for the fixed column 20 is positioned at the support position, and the moving column 30 is lowered while the hook 44 for the moving column 30 is positioned at the retracted position, thereby being lifted to the upper layer. The unit floor 1 can be supported by the fixed column 20. Therefore, the plurality of unit floors 1 stocked in layers can be lifted all at once, and the productivity of the unit floor 1 can be improved.

  Further, in the lifting device 10 for the unit floor 1 according to the present embodiment, the plurality of unit floors 1 stocked in layers are configured to be lifted by moving the moving column 30 up and down with the hydraulic jack 56. That is, by using the hydraulic jack 56 having a higher lifting capacity than a lifting device such as a winch or a chain block, it is possible to easily lift a plurality of unit floors 1 at the same time.

  Further, in the lifting device 10 of the unit floor 1 according to the present embodiment, the unit floor 1 is supported on the fixed column 20 by a simple mechanism in which the hooks 42 and 44 are hooked or detached from the pins 26 or 33. The moving column 30 can be raised. Therefore, the productivity of the unit floor 1 can be improved while suppressing costs.

  Further, in the lifting device 10 of the unit floor 1 according to the present embodiment, the stopper 48 provided on the receiving girder 40 stops the rotation of the hooks 42 and 44 in the direction away from the pin 26 or the pin 33, thereby The spar 40 is supported by the pin 26 or the pin 33. Further, when the receiving girder 40 is raised, the hook 42 for the fixed column 20 is pushed to the position where it does not overlap with the pin 26 by being pushed by the upper pin 26, and when the receiving girder 40 is lowered, the moving column 40 is moved. The 30 hook 44 is retracted to a position where it does not overlap with the pin 33 by being pushed by the upper pin 33.

  Here, the hooks 42 and 44 are configured to contact the stopper 48 with their own weight. Therefore, since the hooks 42 and 44 can be moved to a position where the receiving beam 40 is supported by the fixed column 20 or the moving column 30 by a simple mechanism that does not use a spring or the like, the cost can be reduced.

  In addition, the above-mentioned embodiment is for making an understanding of this invention easy, and does not limit this invention. It goes without saying that the present invention can be changed and improved without departing from the gist thereof, and that the present invention includes equivalents thereof. For example, in the above-described embodiment, the mechanism for supporting the unit floor 1 on the fixed column 20 or raising the unit floor 1 to the movable column 30 is configured by the hooks 42 and 44 and the pins 26 and 33. For example, a mechanism that linearly protrudes or returns from the girder 40 and rests on or retracts from the convex portion provided on the fixed column 20 or the movable column 30 can be applied.

  In the above-described embodiment, the moving column 30 is lifted and lowered by the hydraulic jack 56. However, the moving column 30 may be lifted and lowered by a winch, a chain block, or the like. Furthermore, in the above-described embodiment, the hooks 42 and 44 are configured to abut against the stopper 48 due to their own weight, but may be press-contacted by a spring.

1 unit floor, 2 building, 3 space, 4 wall connection, 5 temporary elevator, 6 scaffolding, 7 beam, 8 deck, 9 moving carriage, 10 lifting device, 11 traveling rail, 12 overhead crane, 20 fixed column, 21 Side plate, 22 frame, 23, 24 guide roller, 25 bracket, 26 pin (first support part), 30 moving column, 31 side plate, 32 frame, 32A web, 32B flange, 33 pin (second support part), 40 receiving girder (receiving material), 42 hook (first movable part), 42A engaging part, 42B recessed part, 44 hook (second moving part), 44A engaging part, 44B recessed part, 46 pin, 47 side plate, 48 Stopper (non-rotating part), 50 frame, 52 columns, 54 beams, 56 hydraulic jack

Claims (5)

A unit floor lifting device that supports a plurality of unit floors in layers and lifts the supported unit floors,
The receiving material on which the unit floor is placed,
A fixed column that supports the plurality of unit floors in layers via the receiving member;
A movable column which is provided so as to be capable of ascending and descending and which rises while supporting the plurality of unit floors in a layered manner via the receiving material;
A plurality of first support portions provided at intervals in the vertical direction on the fixed column;
A plurality of second support portions provided at intervals in the vertical direction on the moving column;
A first movable part that is movably attached to the receiver and is displaced to a support position that supports the receiver on the first support part, and a retracted position that does not overlap the first support part; and
A second movable part that is movably attached to the receiver and is displaced to a support position that supports the receiver on the second support part, and a retracted position that does not overlap the second support part; and
A unit floor lifting device comprising:   The unit floor lifting apparatus according to claim 1, further comprising a jack that raises and lowers the movable column. The first movable part and the second movable part are hooks attached to the receiving member so as to be rotatable,
The unit floor lifting device according to claim 1 or 2, wherein the first support portion and the second support portion are pins fixed to the movable column or the fixed column and on which the hook is hooked. Provided in the receiving material, comprising a detent portion for positioning the hook at the support position by stopping rotation of the hook in a direction away from the pin,
The unit hook lifting device according to claim 3, wherein the hook is rotated to the retracted position by the upper pin when the movable column moves up and down.   The unit floor lifting device according to claim 4, wherein the hook is configured to rotate by its own weight in a direction approaching the rotation stopper.

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