JP4302297B2 - Structural member mounting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structural member mounting apparatus capable of transporting a structural member such as a precast concrete member or a steel member to its mounting position and holding the structural member until the mounting is completed at the mounting position.
[0002]
[Prior art and problems to be solved by the invention]
For example, when installing a precast concrete (PC) wall slab overlaid on an existing bearing wall to seismically strengthen the bearing wall of an existing building, or when installing a new PC wall slab in an opening without a bearing wall, PC wall slabs are fixed to upper and lower beams and slabs by anchors and non-shrink mortar at the upper and lower ends, and to PC wall slabs and columns adjacent to each other in the width direction. It needs to be kept in the vertical state.
[0003]
Usually, the PC wall slab is suspended from a suspension support device such as a chain block attached to the upper-side frame and kept in a vertical state by human power. In addition to the lack of safety and the lack of certainty in maintaining the verticality, the angle adjustment in the in-plane direction and out-of-plane direction of the wall slab does not work.
[0004]
In addition, it is necessary to carry the PC wall slab on the carriage until it is supported by the chain block or the like. Since the loading apparatus and the supporting apparatus are separated, the efficiency of transfer from conveyance to support is poor.
[0005]
The above-mentioned problems when installing structural members by hand with chain blocks, etc. are not limited to indoor installation work of PC wall plates, but in the case of outdoor installation work, or structural members such as PC members and steel members other than wall plates This is also true when using.
[0006]
In view of the above background, the present invention proposes an attachment device that secures safety and stability at the time of attachment of a structural member and increases work efficiency.
[0007]
[Means for Solving the Problems]
In the present invention, a support member that supports a structural member on one side in the width direction of the carriage is mounted on a carriage that has wheels and is capable of traveling, and the structural member is held during the mounting operation by the support member supported by the carriage. While ensuring stability and safety, it improves the efficiency of transportation and mounting.
[0008]
The support member can be raised and lowered with respect to the carriage, and is supported by the carriage so as to be able to reciprocate in the width direction of the carriage, and can move in the height direction and thickness direction or width direction of the structural member by raising and lowering the carriage and the reciprocating movement in the width direction. Position adjustment is performed.
[0009]
If ask supported rotatably bogie support member about the width direction of the axis of the carriage as claimed in claim 2, the structural member, can the angle adjustment in a plane with respect to the mounting surface, to claim 3 If the support member is tilted about the axis in the traveling direction of the carriage as described, the angle of the structural member in the out-of-plane direction with respect to the mounting surface can be adjusted. When the support member is supported by the elevating frame, the support member may be tiltable about the axis in the traveling direction of the carriage together with the elevating frame as described in claim 4 .
[0010]
According to claim 2 , the support member is rotatable around an axis in the width direction of the carriage so that the structural member is conveyed in a laid state when the height of the structural member in the mounted state is large. Therefore, even when there is no height of the passage where the attachment device travels or when there is an obstacle above the passage, the attachment device can be transported to the attachment position while the structural member is placed on the attachment device.
[0011]
The support member that is specifically supported by the lift frame to be vertically movable supported by the fixed frame on the carriage as described in claim 1, comprising a vertically movable relative to the carriage. In the width direction of the carriage, for example, a pedestal is placed on the elevating frame as described in claim 1 , and the support member is supported on the pedestal so that the elevating frame is supported together with the gantry while being supported by the elevating frame. On the other hand, it can reciprocate freely. In this case, the supporting member moves up and down with respect to the frame together with the gantry and the lifting frame.
[0012]
The attachment of the structural member is performed in the support state at the time of transportation or in the state where it is raised from the time of transportation as described above. In any case, the structural member is moved from the transportation state to the support state for attachment. Since there is no need for transfer, it is possible to immediately shift from conveyance to mounting, and the mounting efficiency is improved.
[0013]
After transportation, if the work space can be secured around the structural member in the state where the structural member is pulled toward the carriage at the mounting position of the structural member, the work space is secured in that state, and in the pulled state, the work space is secured around the structural member. If it is not possible, the mounting is performed with the support member protruding in the width direction of the carriage and the structural member protruding from the carriage toward the mounting surface.
[0014]
Supporting state of the structural member by the support member corresponding to the shape of the structural member side structural member of the support member as claimed in claim 5, capable of contacting with a surface to a structural member, connecting the mounting plate structural member is connected To stabilize. In this case, if a plurality of mounting plates having shapes corresponding to the overall shape and surface shape of the structural member are detachably connected to the support member, the shape can be freely adjusted by a single mounting device only by replacing the mounting plate. It becomes possible to correspond to the structural member.
[0015]
When mounting with the structural member protruded, if there is a possibility that the cart may fall down, as described in claim 6 , the cart can be extended and contracted in the width direction on the side supporting the structural member. An outrigger is installed. Alternatively, as described in claim 7 , a counterweight is mounted on the side of the carriage opposite to the side supporting the structural member.
[0016]
When the outriggers are installed, the outriggers can be contracted during travel so that they can be transported by the mounting device even when the width of the path in which the mounting device travels is narrow. If the counterweight is within the width of the carriage during the travel, the counterweight does not become an obstacle during travel of the mounting device.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
The mounting device 1 of the present invention has wheels 2a as shown in FIGS. 1 and 2, and a carriage 2 that can run on a floor surface, a road surface, and the like, and a structural member that is manufactured in advance on one side of the carriage 2 in the width direction. The support member 3 is configured to support 19 and hold it at the attachment position of the structural member 19 until the attachment is completed.
[0018]
The width direction of the carriage 2 refers to the horizontal direction orthogonal to the traveling direction of the carriage 2 and refers to the axial direction of the wheel 2a in FIGS. The traveling direction of the carriage 2 refers to the direction of the wheel 2a in FIGS. 1 and 2, but since the wheel 2a can be in any direction, the carriage 2 must travel in the axial direction of the wheel 2a in FIGS. You can also.
[0019]
6 to 8 show a case where a precast concrete wall slab is used as the structural member 19, the structural member 19 includes other precast concrete members and steel members. Moreover, although the installation procedure of the wall slab indoor is shown in the same figure, this attachment apparatus 1 is used also for the construction outdoors such as the construction of the wall slab on the outer wall and the wall construction in the PC tank.
[0020]
A frame 4 that supports the support member 3 so as to be movable up and down is fixed on the carriage 2. A lift frame 5 that lifts and lowers the support member 3 along the frame 4 is supported on the frame 4, and the support member 3 is supported on the lift frame 5. Supported. Also mounted on the carriage 2 is a hydraulic unit 6 for operating expansion and contraction of hydraulic cylinders 7 and 9, which will be described later.
[0021]
The frame 4 is basically assembled from the connecting material 4b that connects the four supporting columns 4a and the heads of the adjacent supporting columns 4a, 4a. The lifting frame 5 is arranged on the inner peripheral side of the frame 4 in a state of being assembled in a square shape from the horizontal member 5a as shown in FIG. 3 which is a sectional view taken along line xx of FIG. By being connected to a piston rod 7a of a hydraulic cylinder 7 whose shaft is fixed to 2 in a vertical direction, it is supported on the carriage 2 so that it can be raised and lowered by its expansion and contraction.
[0022]
As shown in FIG. 3, a roller 5b that rolls along the column 4a is connected to the position of any column 4a on the outer periphery of the lifting frame 5 in order to ensure stability when the hydraulic cylinder 7 moves up and down.
[0023]
As shown in FIG. 1, a gantry 8 that directly supports the support member 3 is placed on the elevating frame 5, and the hydraulic cylinder 9 is fixed with the shaft facing the width direction of the trolley 2. The gantry 8 is connected to the piston rod 9a of the hydraulic cylinder 9 so that it can be reciprocated in the width direction of the carriage 2 by its expansion and contraction.
[0024]
The gantry 8 is disposed between the columns 4a and 4a of the frame 4 that are arranged in parallel with the traveling direction of the carriage 2. The support member 3 moves up and down with the elevating frame 5 and the gantry 8 with respect to the frame 4, and with respect to the elevating frame 5. It reciprocates in the width direction of the carriage 2 together with the gantry 8.
[0025]
As shown in FIG. 1 and FIG. 4, which is a sectional view taken along the line yy, the elevating frame 5 is connected to a roller 5 c that is always in contact with the gantry 8, and the gantry 8 is in contact with the roller 5 c of the elevating frame 5. The horizontal state during the reciprocating motion by the cylinder 9 is maintained. A plurality of rollers 5c are arranged in the width direction of the carriage 2.
[0026]
In FIG. 1, a solid line shows a state in which the elevating frame 5 and the gantry 8 are lifted in a state where they are stored on the frame 4 side, and the structural member 19 that is a wall slab is supported in a laid state. The alternate long and two short dashes line is lowered when the gantry 8 and the support member 3 protrude toward the mounting surface side of the structural member 19 with the structural member 19 laid down, and the support member 3 rotates around the axis as described later. A state when the structural member 19 is erected by rotating is shown in FIG.
[0027]
As shown here, when the piston rod 9a of the hydraulic cylinder 9 connected to the gantry 8 is contracted and the gantry 8 is retracted, the structural member 19 does not protrude from the carriage 2 in the width direction. Supported by When the piston rod 9a extends and the mount 8 protrudes, the structural member 19 protrudes to such an extent that a space is secured between the lower end portion and the carriage 2.
[0028]
In order to maintain the horizontal state when the elevator frame 5 is moved up and down, sprockets 10 and pulleys are connected to two positions in the width direction of the carriage 2, and the carriage 2 and the frame 4 are connected to the two sprockets 10 and the like. A chain 11, a rope, etc. stretched between the connecting materials 4 b are spanned.
[0029]
As shown in FIG. 1, one end of the chain 11 or the like is connected to the connecting member 4b near the structural member 19 and passes through the lower surface side of the sprocket 10 etc. located on that side, and the upper surface side of the sprocket 10 etc. located on the opposite side The other end is connected to the carriage 2 via.
[0030]
The chain 11 and the like are stretched between the connecting material 4b and the carriage 2 and always hold the elevating frame 5 horizontally through the two sprockets 10 and 10 etc., but further tension is applied from this state. Thus, since the sprocket 10 on the structural member 19 side is to be pushed up with respect to the frame 4, the structural member 19 side of the lifting frame 5 can be inclined upward.
[0031]
Conversely, if the tension is relaxed from the normal state, the sprocket 10 on the structural member 19 side tends to descend, so the structural member 19 side of the lifting frame 5 can be inclined downward, and the tension of the chain 11 etc. can be adjusted. Thus, the inclination angle of the lifting frame 5 about the axis of the traveling direction of the carriage 2 can be adjusted. The tension of the chain 11 and the like is adjusted by adjusting the screwing length of the nut 11b to the shaft portion 11a connected to the carriage 2 or the fixing end to the connecting member 4b.
[0032]
As shown in FIG. 1 and FIG. 2, the structural member 19 is projected from the frame 4 and supported at a position where it does not interfere with the wheel 2 a on the side supporting the structural member 19 in the width direction of the carriage 2. An outrigger 12 with wheels 12 a is connected to be freely movable, and a counterweight 13 for preventing the cart 2 from falling over is disposed together with the outrigger 12 on the opposite side of the outrigger 12.
[0033]
The wheel 12a of the outrigger 12 is connected to a rod 12b protruding and retracting from the carriage 2 by a bolt 12c so as to be adjustable in height, and is placed in a state of floating from the floor surface or road surface during the retracting operation and in the retracted state. Touch the surface or road surface.
[0034]
Similarly to the outrigger 12, the counterweight 13 is placed on a rod 13b that can be moved in and out in the width direction of the carriage 2, and is placed within the width of the carriage 2 when the carriage 2 runs, and protrudes from the carriage 2 when necessary. To do.
[0035]
As shown in FIG. 1 and FIG. 5 which is an arrow view of the z-z line, bearings 14 and 14 are fixed on the gantry 8 at two positions in the axial direction of the support member 3. 14 is held rotatably around the axis.
[0036]
A disk 15 is connected to the end of the support member 3 opposite to the structural member 19, and a brake member 16 that holds the disk 15 is fixed to the base 8 at a position corresponding to the disk 15. 3 is freely rotated around the shaft by a bearing 14 and is stopped at an arbitrary angle when the braking member 16 grips the disk 15. The support member 3 is angle-adjusted about its axis by the bearings 14 and 14 and the braking member 16.
[0037]
The structural member 19 overlaps the end of the supporting member 3 on the structural member 19 side, and a mounting plate 17 that supports the structural member 19 is connected. The mounting plate 17 connects and supports the structural member 19. A mounting portion 17a such as a bolt hole is formed. In order to stabilize the mounting plate 17 in a state where the structural member 19 is supported, the mounting plate 17 contacts the structural member 19 on the surface.
[0038]
The mounting plate 17 is a bolt hole provided in the structural member 19, or a mounted portion 19a such as a hook projecting on the mounting plate 17 side of the structural member 19 and the mounting portion 17a. The structural member 19 is supported by connecting with each other.
[0039]
6 and 7 show a state when the structural member 19 which is a precast concrete wall slab is attached. FIG. 6 shows the case where the existing wall 20 is present at the mounting position of the structural member 19, and when the structural member 19 is attached to the existing wall 20 for seismic reinforcement, FIG. 7 shows an opening where there is no existing wall 20. This is a case where a structural member 19 as a seismic wall is newly attached between the slab 21 on the lower floor and the beam 22 on the upper floor in order to provide earthquake resistance.
[0040]
When the structural member 19 is a precast concrete wall slab, the main bar 19b and the fixing bar protrude from the upper and lower ends of the structural member 19, and the main bar 19b is attached to the structural member 19 while being held by the mounting device 1. The slab 21 and the anchor 23 fixed to the beam 22 are connected by welding or other joints, and the structural member 19 is filled with a filler such as a non-shrink mortar.
[0041]
FIG. 8 shows that the mounting device 1 is used as a dedicated device for mounting the structural member 19 in order to increase the transport efficiency and the mounting efficiency of the structural member 19, and the transport cart 24 dedicated for transport is used for transport to the mounting device 1. The state of construction is shown.
[0042]
【The invention's effect】
In claim 1 , the structural member is held during the mounting operation by the supporting member that is mounted on the carriage having the wheels and supports the structural member on one side in the width direction of the carriage, so that the structural member is supported by the supporting member up to the mounting position. It can be transported and mounted as it is, improving the efficiency of transporting and mounting the structural member, and ensuring safety and stability when mounting the structural member.
[0043]
The support member can move up and down with respect to the carriage, and is supported by the carriage so as to reciprocate in the width direction of the carriage, so that the position of the structural member can be adjusted in the height direction and thickness direction, or in the width direction. Installation can be performed while responding to the situation.
[0044]
For supporting the claims 2, support member rotatably bogie about the width axis of the bogie, the structural member, the angle adjustment of the plane direction with respect to the mounting surface is performed, the support member in claim 3, 4 In order to be able to tilt around an axis in the traveling direction of the carriage, the angle of the structural member in the out-of-plane direction relative to the mounting surface can be adjusted.
[0045]
According to the second aspect of the present invention , the support member is rotatable around an axis in the width direction of the carriage, so that the structural member is transported in a laid state when the height of the structural member is large. Since it is possible to stand at a position, even when there is no height of the passage where the attachment device travels or when there is an obstacle above the passage, it can be conveyed to the attachment position with the structural member mounted on the attachment device. .
[0046]
According to the fifth aspect of the present invention, the structural member can be contacted on the surface, and the mounting plate to which the structural member is connected is connected to the structural member side of the support member. Therefore, the structural member is supported in a stable state according to the shape of the structural member. In particular, if a mounting plate having a shape corresponding to the overall shape or surface shape of the structural member is detachably connected to the support member, it can be applied to a structural member having a free shape by a single mounting device. It becomes possible.
[0047]
In claim 6 , an outrigger that is extendable in the width direction is mounted on the side of the carriage that supports the structural member, and in claim 7 , the counterweight is mounted on the opposite side of the carriage that supports the structural member. When mounting is performed in a state where the structural member is protruded, conveyance by the mounting device is possible when the width of the path in which the mounting device travels is narrow while preventing the cart from overturning.
[Brief description of the drawings]
FIG. 1 is an elevation view of a traveling direction side showing an attachment device.
FIG. 2 is a side view of FIG.
3 is a cross-sectional view taken along line xx of FIG.
4 is a cross-sectional view taken along line yy of FIG.
5 is a view taken along the line zz in FIG. 1. FIG.
FIG. 6 is a longitudinal sectional view showing a mounting state of a structural member when there is an existing wall at the mounting position.
FIG. 7 is a longitudinal sectional view showing a state of attachment of a structural member when there is no existing wall at the attachment position.
FIG. 8 is an elevational view showing a state in which construction is performed using an attachment device and a transport carriage.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Mounting device, 2 ... Dolly, 2a ... Wheel, 3 ... Support member, 4 ... Frame, 4a ... Strut, 4b ... Connecting material, 5 ... Elevating frame, 5a ... Horizontal material, 5b ... Roller, 5c ... Roller, 6 ... Hydraulic unit, 7 ... Hydraulic cylinder, 7a ... Piston rod, 8 ... Mount, 9 ... Hydraulic cylinder, 9a ... Piston rod, 10 ... Sprocket, 11 ... Chain, 11a ... Shaft, 11b ... Nut, 12 ... Outrigger, 12a ... Wheel, 12b ... Rod, 12c ... Bolt, 13 ... Counterweight, 13a ... Rod, 14 ... Bearings, 15: Discs, 16: Braking members, 17: Mounting plates, 17a: Mounting portions, 18: Connecting materials, 19: Structural members, 19a: Mounted portions, 19b: Main bars, 20 …… Wall, 21 …… Slab, 22 …… Beam, 23 …… Anchor, 24 …… Conveyer cart.

Claims (7)

It has a wheel and a travelable carriage, and a support member that is mounted on the carriage and supports a prefabricated structural member on one side in the width direction of the carriage and holds the structural member at the mounting position of the structural member until the mounting is completed. The support member can be raised and lowered with respect to the carriage, and can be reciprocated in the width direction of the carriage, the frame is fixed on the carriage, the raising and lowering frame is supported to be raised and lowered, and the supporting member is supported by the raising and lowering frame. In the structural member mounting apparatus, the gantry is placed on the lifting frame, the support member is supported on the gantry, and the supporting member moves up and down with respect to the frame together with the gantry and the lifting frame. An apparatus for attaching a structural member, wherein the structural member is capable of reciprocating in the width direction of the carriage . 2. The structural member mounting device according to claim 1, wherein the support member is rotatable about an axis in a width direction of the carriage. Support member mounting device structure according to any of claims 1 or 2 which is inclinable about a traveling direction of the axis of the carriage. Support member mounting device structure according to any of claims 1 to 3 is freely tilted about the traveling direction of the carriage with lifting frame axis. The structural member mounting device according to any one of claims 1 to 4 , wherein a mounting plate is connected to the structural member side of the support member so as to be able to contact the structural member with a surface and to which the structural member is connected. The structural member mounting device according to any one of claims 1 to 5 , wherein an outrigger that is extendable in a width direction of the carriage is attached to a side of the carriage that supports the structural member. The structural member mounting device according to any one of claims 1 to 6, wherein a counterweight is mounted on a side of the carriage opposite to the side supporting the structural member.

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