JP2004068477A - Workpiece carrier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a workpiece carrier capable of efficiently conveying relatively heavy and large workpieces of a base isolator or the like to different positions within a large or deformed area while saving energy and using no large crane, etc. <P>SOLUTION: The workpiece carrier 1 for use in carrying workpieces W comprises a carrier base 11 having wheels 11w to travel on a path R of travel; a frame 12 approximately in the form of a rectangular solid that is mounted on the carrier base; a platform 13 provided inside the frame 12 for placing the workpieces W thereon; workpiece moving means 14, 15 provided on the top of the frame 12 for lifting and moving the workpieces W between workpiece mounting faces Y, B besides the frame 12 and the platform 13; and an outrigger 16 that can be removably mounted on the side of the frame 12 along the direction in which the workpieces are moved by the workpiece moving means 14, 15. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a work loading / unloading method and a device for loading / unloading a work such as a seismic isolation rubber for protecting a building or a bridge having a seismic isolation structure from shaking of an earthquake into a work processing unit such as a testing machine.
[0002]
[Prior art]
When building a seismic isolation structure, install a seismic isolation device (laminated rubber isolator) between the lower and upper parts of the building. Since the seismic isolation device has a heavy weight (about 3 tons), each of the seismic isolation devices is lifted by a crane corresponding to this weight, and is moved to each installation position and installed.
[0003]
[Problems to be solved by the invention]
Here, if the distance between the crane and the seismic isolation device is long, it is necessary to use a crane with a large lifting load according to the working radius of the crane, and the cost required for the operation of installing the seismic isolation device increases. In addition, it took time to secure safety measures and processes.
In addition, when using a crane truck, work at night or on holidays may be forced due to consideration for road traffic, etc.In this case, it has been necessary to take soundproofing measures, install lighting, etc. .
[0004]
Also, depending on the shape of the site where the building is constructed, the position of the road in contact with the site, the width, and the like, the transport of the seismic isolation device by the crane may be inappropriate or impossible.
For example, when the site has an irregular shape, or when the width of the road adjacent to the site is narrow, it is impossible to transport the seismic isolation devices to the mounting position by a crane vehicle from a road adjacent to the site.
In this case, it is conceivable to carry a seismic isolation device by loading a transport machine such as a forklift or a hydraulic excavator with a crane into the premises.For example, in a building where the seismic isolation device is installed on the first floor of each pillar, In order to cope with the weight of the transfer machine, it is necessary to set the strength of the slab on the first floor high, which is uneconomical.
Further, even in a building in which the seismic isolation device is installed directly above the foundation of the building, it is troublesome to drop these transport machines on the foundation slab from the ground and remove the transport machinery again after the installation of the seismic isolation device.
[0005]
An object of the present invention is to enable a relatively heavy work such as the seismic isolation device to be efficiently conveyed to each position in a wide area or a deformed area with little energy without using a large crane or the like. An object of the present invention is to provide a work carrier.
[0006]
[Means for Solving the Problems]
In order to solve the above problems, an invention according to claim 1 is a work transport cart 1 used for transporting a work (seismic isolation device) W, for example, as shown in FIGS.
A bogie base 11 having wheels 11w for traveling on a traveling path (track) R;
A substantially rectangular parallelepiped frame 12 mounted on the base of the cart;
A mounting table 13 provided inside the frame 12 and capable of mounting the work W;
The work W is lifted up and moved between the work placement surface (stock yard) Y, (seismic isolation device mounting position) B on the side of the frame 12 and the mounting table 13 provided above the frame 12. Work moving means (chain block with trolley) 14 and (guide rail) 15
An outrigger (support jack) 16 that can be attached or detached to the side of the frame 12 in the direction of movement of the work by the work moving means 14 and 15 is provided.
Here, the traveling path may be one that is configured such that a line is constant, such as a rail or a guidance device, or one that can freely select a line, such as a flat roadbed. Is also good.
[0007]
According to the first aspect of the present invention, in a state where the outrigger is attached to the side of the frame, the work is lifted by the work moving means and moved between the work mounting surface on the side of the frame and the mounting table. Thus, when loading the work on the side of the work transfer cart and unloading the work loaded on the work moving means, even if the center of gravity of the work transfer cart in a suspended state of the work moves, The work carrier is maintained in a stable state without tilting.
And, since a carriage base having wheels for traveling on the traveling path is provided, if the work is transported by moving the work carrier with the workpiece loaded, a lifting machine such as a crane is used. The work can be efficiently transported without any work.
In addition, it is possible to appropriately set the traveling path so that the traveling of the work transporting means is a small turn, and to transport the workpiece to each workpiece mounting surface in the irregularly shaped area.
[0008]
According to a second aspect of the present invention, as shown in FIGS. 1 to 3, for example, in the work carrier 1 according to the first aspect,
The traveling path R is a track provided with a rail R1,
The frame 12 is mounted on the carriage base 11 so as to be rotatable around a vertical axis,
At each corner of the lower portion of the frame 12, a lifting means (lift jack) 17 is provided, which is capable of supporting and raising the frame 12 on the ground (slab) G by extending below the frame 12. It is characterized by having.
[0009]
According to the second aspect of the invention, the same effect as the first aspect of the invention is obtained, and the frame is rotatably mounted on the base of the bogie around the vertical axis. A state in which the work carrier is located at the intersection of the two orbits is provided with a raising means capable of supporting and raising the frame on the ground by extending the frame below the corner at the corner. Then, the frame is raised by the lifting means, and in this state, the work carrier is run by rotating the carriage base attached below the frame from the direction of one track to the direction of the other track. You can change direction.
In addition, since the frame can be rotated while the work carrier is positioned on the track, the work can be moved and installed on the work transfer destination on both the left and right sides of the track and on the front side of the terminal end. it can.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, with reference to the drawings, embodiments of a work transport cart according to the present invention will be specifically described.
As shown in FIG. 2, the work carrier of the present embodiment is a seismic isolation attached to a column base of each column on a slab (ground) G on the first floor of a reinforced concrete building constructed on an S-shaped site. The device (work) W is used for transporting the device (work) W to each seismic isolation device mounting position (work placement surface) B.
Although two roads S1 and S2 are in contact with this site, because the width of the road S2 is narrow, the seismic isolation device W must be carried into the site by a crane truck C from the road S1 and a stock yard (work placement). This is performed by temporarily placing the image on the surface (Y).
1A to 1C are a front view, a side view, and a top view, respectively, of the work carrier 1.
[0011]
As shown in FIGS. 1 and 2, the work carrier 1 is laid on the first floor slab of this building in the X and Y directions from the stock yard Y to each seismic isolation device mounting position B. The vehicle travels on the track (travel path) R thus set. The track R is a rail R1 composed of a JIS 15 kg rail (Japanese Industrial Standard: JIS E 1103 “light rail”) laid so that the gauge is 610 mm.
At the intersection Rx of the track R laid in the X direction and the Y direction, the rails are laid in a grid pattern.
[0012]
As shown in FIG. 1, in the work transporting trolley 1, a frame 12 formed by assembling a steel material into a rectangular parallelepiped frame shape on a disk-shaped trolley base 11 provided with wheels 11 w for traveling on a track R has a vertical axis. It is attached rotatably around.
A mounting table 13 for mounting the seismic isolation device W is welded inside the lower frame of the frame 12.
In addition, as shown in FIG. 1, lift jacks (uplifts) capable of supporting the frame 12 on the slab G and extending the frame 12 by extending below the frame 12 are provided at the four corners at the lower portion of the frame 12. Means 17 are provided.
[0013]
As shown in FIG. 1, a guide rail (work moving means) 15 made of H-shaped steel of size 200 is fastened to the upper frame of the frame 12 with bolts, and a chain block with a trolley (work moving means) is attached to the guide rail 15. 14 is movably suspended. The guide rail 15 protrudes from one surface of the frame 12 to about 1 m outside.
[0014]
A gate-shaped support jack mounting portion 18 is fixed to a leading end of the guide rail 15 on the protruding side.
As shown in FIG. 1, an insertion portion 18a is provided at the lower end of the support jack mounting portion 18. The tip of the support jack (outrigger) 16 is inserted into the insertion portion 18a, and is maintained in a state of being extended until it hits the slab G. Thus, the tip of the guide rail 15 can be supported by the slab G via the support jack 16.
As shown in FIG. 1, a spacer 16 </ b> A is installed between the support jack 16 and the vertical frame member of the frame 12 so that the chain block 14 with the trolley on which the seismic isolation device W is lifted is guided by the guide rail 15. When it moves along, the support jack 16 can be prevented from leaning and losing the supporting force.
The support jack 16 is detached from the support jack mounting portion 18 when the seismic isolation device transport cart 1 moves on the track R in order to avoid interference with objects on the slab.
[0015]
As shown in FIG. 1, a beam 14A is suspended from the chain block 14.
On the upper surface of the seismic isolation device W, a suspension portion Wa that also serves as a dowel embedded in a reinforced concrete column to be constructed above the projection is protruded. When this hanging portion Wa and the hanging portion on the lower surface of the beam 14A are connected by a shackle and the chain block 14 is wound up, the seismic isolation device W is lifted up along the guide rail 15 as shown by a broken line in FIG. To a movable state.
[0016]
A method of transporting the seismic isolation device W from the stock yard Y to each seismic isolation device mounting position B using the work transport cart 1 will be briefly described.
First, the seismic isolation device W temporarily placed in the stock yard Y shown in FIG. At this time, the support jack 16 is attached to the work carrier 1 as described above. In this state, the chain block with trolley 14 is moved along the guide rails 15 above the seismic isolation device W in the stockyard Y, the seismic isolation device W is lifted from the slab R, and the frame 12 is moved along the guide rails 15. After being moved inside, the seismic isolation device W is hung on the mounting table 13 and is loaded on the work carrier 1. Then, the support jack 18 is removed from the work carrier 1.
[0017]
Then, the work carrier 1 is moved to an intersection Rx with a track R laid in the X direction on the site. Here, the lift jack 17 provided at the lower part of the frame 12 is extended to support and raise the frame 12 on the slab G, and the wheel 11w is lifted off the rail R1. In this state, the bogie base 11 is rotated 90 degrees so that each wheel 11w is positioned on the rail R1 of the track R laid in the X direction, the lift jack 17 is contracted, and the frame 12 is placed on this rail R1. take down.
In a similar manner, the work carrier 1 is turned at the intersection Rx of the tracks R, and the work carrier 1 is moved to the side of the desired seismic isolation device mounting position B.
[0018]
Then, the support jack 16 is attached to the work carrier 1 again. In this state, the chain block 14 with the trolley is wound up to lift the seismic isolation device W from the mounting table 13, and is moved to the side of the frame 12 along the guide rails 15, so that the seismic isolation device W is positioned on the seismic isolation device mounting position B. Hang W and install.
[0019]
As described above, according to the work carrier 1 described in the present embodiment, the seismic isolation device W is lifted by the chain block 14 with the trolley in a state where the support jack 16 is mounted on the support jack mounting portion 18 on the side of the frame 12. The seismic isolator W on the side of the work carrier 1 is loaded by moving the stock yard Y or the seismic isolator attachment position B on the side of the frame 12 and the mounting table 13 to transfer the work. When unloading the seismic isolation device W loaded on the trolley 1, even if the center of gravity of the work transportation trolley 1 in a state where the seismic isolation device W is suspended moves, the work transportation trolley 1 does not tilt and is stable. It is kept in the state.
And, since the truck base 11 provided with the wheels 11w for traveling on the track R is provided, if the workpiece carrier 1 is run while the seismic isolator W is loaded, and the seismic isolator W is transported, The seismic isolation device W can be efficiently transported manually without using a lifting machine such as a crane. Therefore, after the seismic isolation device W is carried into the stock yard Y, the seismic isolation device W can be transported and installed even in a place without electricity.
Also, a track R is laid vertically and horizontally in the X direction and the Y direction on the site, and the work transfer means 1 runs on the track R. Therefore, as in the building shown in FIG. It is possible to convey the seismic isolation device W to each seismic isolation device mounting position B in the site that is difficult to be conveyed by the lifting machine.
[0020]
In addition, a lift jack 17 is provided at each corner of the lower portion of the frame 12 so as to be supported by the slab G and to be raised by extending the frame 12 below the frame 12. In a state where the work carrier 1 is located at the intersection Rx of the track R, the frame is lifted by the lift jack 17, and in this state, the carriage base 11 attached below the frame 12 is moved from one direction of the track R to the other. The direction in which the work carrier 1 travels can be changed by rotating the work carrier 1 by 90 degrees so as to face the direction of the trajectory R.
In addition, since the frame can be rotated with the work carrier 1 positioned on the track R, the seismic isolation device mounting position B on both the left and right sides of the track R and the front side of the terminal end is also isolated. The device W can be moved and installed.
[0021]
It should be noted that the present invention is not limited to the above embodiment, and various improvements and design changes may be made without departing from the spirit of the present invention.
For example, by using the work carrier to transport heavy objects other than the seismic isolation device, the use efficiency of the work carrier can be increased.
Further, the work transport cart of the present embodiment is used for transporting the seismic isolation device W of a reinforced concrete building to each mounting position B. When installing objects (outdoor air-conditioning units, pumps, emergency generators, etc.), the crane may not reach the installation location of each machine, or there may be overhead obstacles. It can also be used effectively when installing heavy objects (heavy temporary materials, pumps, bridge piers, seismic reinforcement members, etc.) in places where work is not possible.
In particular, in the latter case, usually, an anchor is installed on the ceiling, and a winch lever block or the like is used to move a heavy object. On the other hand, by using the work transport cart of the present invention, a heavy object can be safely moved to a desired place and installed without damaging an obstacle (such as a frame of an existing structure). . A typical example is installation work of a cubicle or a pump for a tunnel at a construction site of a tunnel.
The track may be provided with a curved portion, a branching device, and the like. The wheels 1 may be used as wheels to allow the work carrier 1 to run on the slab B in any direction.
In addition, it is needless to say that specific detailed structures and the like can be appropriately changed.
[0022]
【The invention's effect】
According to the first aspect of the present invention, in a state where the outrigger is attached to the side of the frame, the work is lifted by the work moving means and moved between the work mounting surface on the side of the frame and the mounting table. Thus, when loading the work on the side of the work transfer cart and unloading the work loaded on the work moving means, even if the center of gravity of the work transfer cart in a suspended state of the work moves, The work carrier is maintained in a stable state without tilting.
And, since a carriage base having wheels for traveling on the traveling path is provided, if the work is transported by moving the work carrier with the workpiece loaded, a lifting machine such as a crane is used. The work can be efficiently transported without any work.
In addition, it is possible to appropriately set the traveling path so that the traveling of the work transporting means is a small turn, and to transport the workpiece to each workpiece mounting surface in the irregularly shaped area.
[0023]
According to the second aspect of the invention, the same effect as the first aspect of the invention is obtained, and the frame is mounted on the base of the bogie so as to be rotatable around a vertical axis. Since the lifting means capable of supporting and raising the frame on the ground by extending the frame below the corner is provided at the corner, the work carrier 1 is located at the intersection of the two tracks. In this state, the frame is raised by the lifting means, and in this state, the carriage base mounted under the frame is rotated from the direction of one track to the direction of the other track, so that the work transfer truck travels. Can change direction.
In addition, since the frame can be rotated while the work carrier is positioned on the track, the work must be moved and installed on the work mounting surface on both the left and right sides of the track and on the front side of the terminal end. Can be.
[Brief description of the drawings]
FIG. 1 is a front view, a side view, and a top view of a work carrier according to the present invention, wherein (a) to (c) of FIG.
FIG. 2 is a plan view showing a work transfer state to which a work transfer cart according to the present invention is applied.
FIG. 3 is a side view showing a state of movement and installation of a work by the work transport cart according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Work conveyance trolley 11 trolley base 11w wheel 12 frame 13 mounting table 14 chain block with trolley (work moving means)
15 Guide rail (work moving means)
16 Support jack (outrigger)
17 lift jack (lift means)
B Seismic isolation device mounting position (work mounting surface)
G slab (ground)
R running path (track)
R1 Rail W Work (Seismic Isolation Device)
Y Stock yard (work placement surface)

Claims (2)

A workpiece transport trolley used to transport the workpiece,
A bogie base with wheels for traveling on the traveling path,
A substantially rectangular parallelepiped frame mounted on the base of the cart,
A mounting table provided inside the frame and capable of mounting a work,
Work moving means provided on the upper part of the frame, capable of lifting the work and moving the work between the work mounting surface on the side of the frame and the mounting table,
An outrigger that can be attached to or detached from a side of the frame in a direction in which the work is moved by the work moving means. The work carrier according to claim 1,
The travel path is a track with rails,
The frame is rotatably mounted on a bogie base around a vertical axis,
A work carrier having a lifting means capable of supporting and raising the frame on the ground by extending the frame below the frame at each corner of the lower portion of the frame.

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