JPH1086737A - Conveying carriage provided with inverting mechanism for long workpiece - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently and safely perform inverting, lifting and conveying work of a long workpiece of angular section. SOLUTION: A carriage 5 conveying a long workpiece can run in a direction X by wheels 54, a first/second arm 1, 2 of an inverting mechanism for the long workpiece is turnably provided in a rotary shaft 3 of a support shaft 4, to be secured to the carriage 5. One more first/second arm 41, 42 is turnably provided in the rotary shaft 3 of a support part 44 and movably provided in the carriage 5. An L shape is formed by the first arms 1, 41 and the second arms 2, 42, to perform inverting and lifting of the long workpiece mounted here.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carriage having a long work reversing mechanism, and more particularly to a long work provided with a long work reversing mechanism movably in the longitudinal direction of the long work. The present invention relates to a transport trolley provided with a reversing mechanism.

[0002]

2. Description of the Related Art Generally, a long work having a rectangular cross section, for example, a long work having a rectangular cross section such as a bridge or a building steel frame, needs to be inverted, lifted, and conveyed for an assembling process, a welding process, and storage. . For this purpose, the work is reversed by lifting and placing the work on the L-shaped arm with a crane or the like and reversing the L-shaped arm by 90 degrees. When reversing by 180 degrees, the work is lifted by a crane or the like after being reversed by 90 degrees with the L-shaped arm, replaced with the L-shaped arm again, and the L-shaped arm is further reversed by 90 degrees. Further, as a device for reversing and lifting the work, a combination of an L-shaped arm for rotating the work and a traverser having a function of lifting and lowering the work has been proposed.

[0003]

In the conventional art in which a work is lifted and mounted on a L-shaped arm by a crane or the like and the L-shaped arm is turned over, there is a danger of a disaster due to crane sling work. In addition, the operator had to wait for the crane to move during the operation, which resulted in a loss of waiting time. Further, in the case of a combination of an L-shaped arm for rotating a work and a traverser having a function of lifting and lowering a work according to the related art, the cost is high because the apparatus includes two devices of the L-shaped arm and the traverser. Lifting work,
Since the traverse and the reversal are performed as separate operations, the operation takes time.

[0004] In addition, a long work to which a metal fitting, a lifting hardware, and the like are attached may collide with the L-shaped arm of the reversing mechanism, so that there is a problem that the long work cannot be stably mounted. As described above, in the prior art, for example, a long work having a rectangular cross section such as a bridge or a building steel frame is subjected to inversion, lifting, and transport for an assembling process, a welding process, storage, and the like. There was a problem in terms of efficiency and work efficiency.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a transporting vehicle provided with a long work reversing mechanism, wherein the long work reversing mechanism independently rotates the first arm and the second arm around the rotation shaft. The first arm is provided with a first working cylinder at a link portion thereof, and the second arm is provided with a second working cylinder at a link portion thereof. The L-shaped arm is formed by the arm and the second arm to reverse and lift the long work placed thereon.
A plurality of the long work reversing mechanisms are provided on the carriage, and at least one of the long work reversing mechanisms is provided so as to be movable on the carriage in a longitudinal direction of the long work to be placed. It is a transport trolley provided with a long work reversing mechanism.

Further, the present invention is the transport carriage provided with the long work reversing mechanism, wherein the carriage provided with the long work reversing mechanism is a divided carriage. Further, the present invention is the transport carriage including the long work reversing mechanism, wherein a sensor for detecting the work is provided on the first arm and / or the second arm.

[0007]

According to the present invention, a long work reversing mechanism is provided in which a first arm and a second arm rotate independently between a substantially horizontal position and a substantially vertical position. When placing a work, place one arm almost horizontally and move it under the work on the base to place the work, and then place the other arm on the base. By rotating to a substantially vertical position, an L-shape is formed by the first arm and the second arm, and a long work can be inverted. The L-shaped corner formed by the first arm and the second arm is rotated by the first working cylinder and the second working cylinder so that the corner of the L-shape is moved to a position substantially perpendicular to the rotation axis, and the work is loaded. The work can be lifted from the base on which it is placed.

Further, according to the present invention, a plurality of long work reversing mechanisms are provided on a carriage, and at least one of the long work reversing mechanisms moves on the carriage in a longitudinal direction of the long work to be placed. Since the L-shape is provided so that the L-shape formed by the first arm and the second arm is located at the center of gravity of the work in the longitudinal direction, it is possible to prevent the workpiece from being dropped during transport and reversal. Further, in the case of a long workpiece in which a metal fitting and a lifting hardware are fixed to the workpiece, the workpiece can be placed so as to avoid contact with the workpiece.

The reversing and lifting of the workpiece by the reversing mechanism of the present invention will be described with reference to FIGS. In the figure, (1) and (41) indicate the first arm, and (2) and (4)
2) is a second arm, (3) is a rotation axis, and (10) is a work. The first arms (1) and (41) are for reversing the work.
The same operation is performed at the time of lifting, and the first arm (1) will be described. Also, the second arms (2) and (4
2) similarly describes the second arm (2). First, FIGS. 12 to 14 will be described. This means that the work is placed on a pillow (base) of height (h + δ) and the first arm (1)
This is the case where the horizontal position in (41) is related to the height (h).
Note that (ho + r)> (h + δ) is set.

As shown in FIG. 12, the first arm (1) is moved substantially under the pillow having a height (h + δ) of the work (10) while being substantially horizontal. The second arm (2) is pivoted to a substantially vertical position by a hydraulic cylinder, and the first arm (1) and the second arm (2) form an L-shape. Next, as shown in FIG. 13, each of the first arm (1) and the second arm (2) formed in the L-shape is rotated by the operation of the hydraulic cylinder, and the work (10) is rotated by α degrees. ) Comes into contact with the first arm (1) at the lower part (Q), and the weight of the work (10) is placed in an L-shape from the pillow.

Next, as shown in FIG. 14, the first arm (1) and the second arm (2), which are further L-shaped, are rotated by a hydraulic cylinder, and the L-shaped corner (P) is rotated. The workpiece (10) is lifted to the position (ho + r) by being positioned substantially on the vertical line of the axis (3). Since (ho + r)> (h + δ) is set here, the work (10) placed on the pillow of the height (h + δ) at the lifted (ho + r) position is separated from the pillow by a carriage. Is what you can do.

Another example of reversing / lifting a workpiece according to the present invention will be described with reference to FIGS. 15, 16 and FIG. This is the height of the pillow where the work is placed and the first
This is the case where the height of the horizontal position of the arm (1) is equal, that is, the height (h) where the work is placed, and the case where the horizontal position of the first arm (1) is the height (h). As shown in FIG.
The tip of the first arm (1) was directed slightly below horizontal (h
−δ) and move it to the lower part of the work (10). The second arm (2) is pivoted to a substantially vertical position by a hydraulic cylinder, and the first arm (1) and the second arm (2) form an L-shape.

Next, as shown in FIG. 16, each of the L-shaped first arm (1) and second arm (2) is rotated by a hydraulic cylinder and brought into contact with the lower surface of the work (10). . Thus, the weight of the work (10) shifts from the pillow to the L-shape. Next, as shown in FIG. 14 described above, the first arm (1) and the second arm (2), which are further L-shaped, are each rotated by a hydraulic cylinder, and the L-shaped corner (P) is rotated. The workpiece (10) is lifted to the position (ho + r) by being positioned substantially on the vertical line of the axis (3). Work (10) placed on a pillow with a height (h) at this raised (ho + r) position
Can be lifted from a pillow and transported by a trolley.

As described above, the L-shaped corner portion (P) rotating about the center O of the rotation axis (3) turns on the locus of the circumference of the radius r, and the corner portion (P) in FIG. Shaft (3)
Can be lifted to the position (ho + r) at a position substantially on the vertical line. As a result, the work (10) placed on the L-shape formed by the first arm (1) and the second arm (2) is lifted up by the rotation of the work (10) simultaneously with the rotation alone. Things. That is, lift-up and lift-down of the work (10) is a mechanism that is necessarily performed during rotation of the L-shaped arm constituted by the arm (1) and the arm (2), and means for rotating the work. Independently, the work can be turned upside down and lifted without providing means for lifting and lowering the work.

As shown in FIG. 14, when the L-shaped corner (P) is located substantially on the vertical line of the rotation axis (3), that is, the work (10) is inclined by approximately 45 ° from the horizontal position. The position is the position where the work is lifted up to the maximum, but the center of gravity of the work (10) is located substantially on the vertical line of the rotation axis (3), and the load is stable on the bogie.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, a transport carriage provided with a mechanism for reversing a long workpiece transports, for example, a long workpiece having a rectangular cross section in a lateral direction. As running means,
For example, it is preferable to provide wheels that run on laid tracks (rails) or wheels that run without tracks, and to provide the running power to the bogie. Specifically, the transport vehicle travels on a monitor with a speed reducer that drives wheels.

The reversing mechanism for a long work is provided with a first arm and a second arm rotatably provided on a rotating shaft independently of each other. Specifically, the first arm and the second arm are provided.
The arms can be independently turned to a substantially horizontal position and a substantially vertical position. Then, an L-shape is formed by the first arm and the second arm to perform reversal and lifting of a long work. The rotation axis of the reversing mechanism for the long work is provided at the intermediate position between the front and rear wheels of the bogie, and when the work is inclined by approximately 45 °, the center of gravity is located substantially in the middle of the bogie on a vertical line of the rotary shaft. It is preferable that a stable load state be set on the carriage in this way.

The first arm of the reversing mechanism for a long work is provided with a first working cylinder at a link portion thereof,
The arm is provided with a second working cylinder at a link portion thereof. Specifically, each of the first arm and the second arm includes a first hydraulic cylinder and a second hydraulic cylinder connected by a link mechanism. A cylinder is provided. The first hydraulic cylinder and the second hydraulic cylinder are provided almost horizontally at the base of the trolley. The work of reversing, lifting, and transporting a long work can be done by not making the height of the work placement position of the movable trolley too high. It is important to carry out the operation stably without danger.

A plurality of long work reversing mechanisms are provided on the carriage, and at least one of the long work reversing mechanisms is provided movably on the carriage in the longitudinal direction of the long work to be placed. In order to move the reversing mechanism for a long work, a method in which a rail is provided on a bogie and a reversing mechanism is driven by a wheel drive method driven by an electric motor, a method performed by a rack and pinion method, a method performed by a screw rotating method, or the like is used. is there. In addition, the reversing mechanism is capable of moving in the longitudinal direction of the long work placed thereon, but the degree of the movement is the width required for adjusting the longitudinal center of gravity of the long work,
It is determined empirically depending on the work size and the position where the metal fittings and the lifting hardware are fixed.

A plurality of long work reversing mechanisms are provided on a trolley, and at least one of the long work reversing mechanisms is provided so as to be movable on the trolley. For example, a long work reversing mechanism is provided. Are provided on the carriage, one is fixed to the carriage, and the other is provided on the carriage so as to be movable in the longitudinal direction of the long work. Alternatively, a long work reversing mechanism is provided on a carriage, and two reversing mechanisms are provided on the carriage so as to be movable in a longitudinal direction of the long work.

Further, the bogie provided with a long work reversing mechanism is divided, and specifically, is divided for each mechanism for reversing and lifting the long work, and a means for synchronizing the running of the bogie. , And an inversion synchronization means such as forming an L-shape by the first arm and the second arm.

The first arm and / or the second arm of the long work reversing mechanism is provided with a sensor for detecting the work, and detects the state of the work to control the hydraulic cylinder.
This corresponds to the rotation speed of the arm and the weight of the work. Specifically, the arm comes into contact with the workpiece, detects the contact, and transmits it to the drive unit of the bogie to automatically stop the bogie. In addition, it is also possible to detect the state of the work and control the transmission to the hydraulic cylinder to control the rotation speed of the arm and the like. The operation of the traveling drive unit and the hydraulic cylinder (hydraulic circuit) of the transport trolley is performed by button operation, and a series of operations can be automatically performed by attaching a sequencer.

[0023]

Embodiment 1 FIGS. 1 to 1 show a first embodiment of the present invention.
1 will be described. FIG. 1 is a perspective view showing a carriage according to a first embodiment of the present invention, FIG. 2 is a plan view of FIG. 1, FIGS. 3 and 4 are views showing the operation of a hydraulic cylinder, and FIGS. , FIG. 7 is a view showing a link mechanism, FIGS. 8 and 9 are views showing the movement of a long work in the longitudinal direction of a long work reversing mechanism, and FIGS. Inversion of mechanism
It is a figure explaining lifting.

First, a carrier according to a first embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 and 2, a carriage (5) for transporting a long work is composed of a horizontal frame (50) and a vertical frame (51), provided with wheels (54), and moves on rails (55). It can run in the X direction.

The first arm (1) and the second arm (2)
Rotation axis (3) of arm support member (52) of support part (4)
Is provided rotatably. The support part (4) is fixed on a horizontal frame (50) of the carriage (5). The other first arm (41) and second arm (42) are rotatably provided on a rotation shaft (3) of an arm support member (53) of the support portion (44). A wheel (46) is provided at an end (45) of the support portion (44), and is movable on rails (47) of two opposing horizontal frames (50). is there.

The first arm (1) is connected to the piston (14) of the first hydraulic cylinder (12) by a connecting portion (13). The first hydraulic cylinder (12) is a support (4)
Is provided so as to be swingable about a shaft (15). The second arm (2) is connected to a piston (24) of the second hydraulic cylinder (22) at a connection portion (23). The second hydraulic cylinder (22) is provided on the support (4) so as to be swingable about a shaft (25).

Similarly, another first arm (4)
1) The piston (14) of the first hydraulic cylinder (12)
At a connecting portion (13). The first hydraulic cylinder (12) is provided on the support (44) so as to be swingable about a shaft (15). The second arm (42) is connected to the connecting portion (2) to the piston (24) of the second hydraulic cylinder (22).
The second hydraulic cylinder (22) is connected to the support portion (44) so as to be swingable by a shaft (25). The first arm (1) (41) and / or the second arm (2) (42) are provided with a sensor (not shown) for detecting a work.

The number and position of the wheels (54) of the truck (5) are arbitrarily determined as appropriate, but are determined by the size and weight of the long work to be placed, transported and inverted. . In this embodiment, the position of the wheel (54) is such that the width of the wheel (54) on the side where the support portion (4) of the work reversing mechanism of the bogie (5) is fixed is narrow, and the work reversing mechanism is The position of the wheel (54) on the side where the supporting portion (44) is movably provided is wider. This is because the support portion (44) is movable in the Y direction on the horizontal frame (50) of the carriage (5), so that it can support the weight of the work at any position in the Y direction and safely transport and reverse it.・ This is for lifting. Also, in this embodiment, the cart (5) is
0) and the vertical frame (51), but the trolley (5) may be formed of a plate material.

Next, the first arm and the second arm in FIGS.
The operation of the arm will be described. FIGS. 3 and 4 show the operation of the hydraulic cylinder, and are side views of the above-described movable cart shown in FIGS. In FIGS. 3 and 4, the support portion (4
4) The end (45) on the rail (47) of the bogie (5).
Is provided so as to be movable by wheels (46) provided on the vehicle. A first arm (1) and a second arm (2), and another first arm (41) and a second arm (42)
Is the same operation when reversing and lifting a long work. Here, a first arm (41) and a second arm (4) rotatably provided on a rotation shaft (3) of an arm support member (53) of the support portion (44).
2) and its first hydraulic cylinder (12) and second
The hydraulic cylinder (22) will be described.

As shown in FIG. 3, the first arm (41)
Rotates about the rotation axis (3) from a substantially horizontal position indicated by a chain line to a substantially vertical position indicated by a solid line. The first arm (41) is connected to the piston (14) of the first hydraulic cylinder (12), which is swingably provided on the support (44) by the shaft (15). Are connected by At a substantially horizontal position indicated by a dashed line, the operation of the first hydraulic cylinder (12) is started, the hydraulic cylinder (12) is further operated, the piston (14) is pushed out, and the first hydraulic cylinder (12) is pushed out as indicated by a solid line. ) Is to rotate the first arm (41) to a substantially vertical position indicated by a solid line by the link (11) with a slight inclination.

As shown in FIG. 4, the second arm (4
2) also rotates about the rotation axis (3) from a substantially horizontal position indicated by a chain line to a substantially vertical position indicated by a solid line. Second
The arm (42) is connected to the piston (24) of the second hydraulic cylinder (22), which is swingably provided on the support (44) by the shaft (25). In the substantially horizontal position shown by the dashed line, the operation of the second hydraulic cylinder (22) is started, the hydraulic cylinder (22) is further operated, the piston (24) is pushed out, and the second hydraulic cylinder (22) is pushed out as shown by the solid line. 2 hydraulic cylinders (2
2) is to tilt the link (21) to rotate the second arm (42) to a substantially vertical position indicated by a solid line.

The link mechanism of the first arm and the second arm will be described with reference to FIGS. FIG. 5 shows the first arm (1) (41), the rotating shaft (3), the connecting part (13), and the link (11). The connecting part (13) is connected to the piston of the first hydraulic cylinder. They are connected by a link (11). Although the link mechanism is shown as an integral part of the first arm (1) (41) for explanation, the present invention is not limited to this, and the link mechanism (11) and the first arm (1) are not limited thereto.
(41) can be made separately. In addition, the overall height of the movable trolley is important for safely performing the work of reversing, lifting, and transporting a long work. For this purpose, the first and second hydraulic cylinders are provided substantially horizontally at the base of the trolley, but the overall height of the movable trolley also needs to consider the structure of the link mechanism.

In the link mechanism shown in FIG. 6, one end of a first hydraulic cylinder (12) is provided so as to be swingable about a shaft (15), and the first arms (1) and (41) are provided on a rotating shaft (3).
The piston (14) of the first hydraulic cylinder (12) is connected to the link portion (11) of the connecting portion (13).
In connecting arrows of the first hydraulic cylinder _{(12) (P} 1)
The first arm (1) is rotated in the direction of the arrow (M) by the force in the direction.

When the first hydraulic cylinder (12) is pushed in the direction of the arrow with the force of (P ₁ ), the connecting portion (13) becomes an arc at the center of the rotating shaft (3) with the radius of (R ₁ ) of the link portion (11). It moves on the upper trajectory, and the force of the hydraulic cylinder (12) (P ₁ )
And the reversal moment (M) are represented by the following equation. M = P ₁ · R ₁ · sin θ ₁ (θ ₁ is an angle formed by an initial horizontal line.)

In the link mechanism shown in FIG. 7, the angle between the link mechanism of FIG. 6 and the initial horizontal line is different.
Angle of the initial horizontal line is the case of the theta _2. In the link mechanism of FIG. 7, when θ ₂ = 90 degrees, M = P ₂ · R ₂ . That is, as shown in FIG. 7, if θ ₂ = 90 degrees, the force of the hydraulic cylinder can be rationally exerted. Either the link mechanism shown in FIG. 6 or the link mechanism shown in FIG. 7 is used in consideration of the overall height of the movable carriage, the size of the hydraulic cylinder, and the like.

Next, with reference to FIGS. 8 and 9, a description will be given of the movement of the long work in the longitudinal direction of the long work reversing mechanism. FIGS. 8 and 9 are diagrams showing the movement of the reversing mechanism for the long work of the transport carriage shown in FIGS. 1 and 2 in the longitudinal direction of the long work. The support (4) is fixed to the trolley (5), and the support (44) has a wheel (4) at its end (45).
6) is provided, and the rail (47) is provided so as to be movable in the Y direction.

A long work (10) having a connection (60), hanging fittings, etc. (61) attached to a trolley (5)
(60), hanging fittings, etc. (61)
The first arm (1) and the second arm (2) and another first arm (41) and the second arm (42) at positions
Must be placed so that they do not collide.

For this purpose, when the long work (10) is mounted on the carriage (5), first, the first arm (1) and the second arm (2) are connected to the connection (60) of the work (10), The first arm (41) and the support portion (44) of the second arm (42) should not be in contact with the connection (60), the hanging metal fitting (61) or the like. To Y
It is mounted after moving in the direction.

The support portion (44) is driven by a motor (not shown) on the rail (47) of the carriage (5) to move in the Y direction. The Y-direction movement may be performed by a rack and pinion system or a screw rotation system instead of the rails and wheels. Also, the wheel (5) on the side on which the supporting portion (44) of the work reversing mechanism is movably provided.
The width of 4) is the movable range in the Y direction, that is, the rail (47).
The width is wider than the side to which the support part (4) is fixed so that the weight of the work can be supported at any position on the upper side and can be safely transported, inverted and lifted.

10 and 11, which illustrate the reversing and lifting of the reversing mechanism of a long work in FIGS. 10 and 11, in FIG. 10 and FIG. 11, a truck (5) is provided with wheels (54), and the wheels (54) are driven by a driving unit. Driven by the transmission means (7) from (6), the bogie (5) can run on the rail (55). (Note that, in FIGS. 1 and 2, the drive unit (6) and the transmission unit (7) are not shown.) FIG. 10 shows a state in which a workpiece is placed and the first arm (1).
The work (10) is placed on (41) and the second arm (2)
The work (10) is placed and supported by rotating the (42) to a substantially vertical position to make it L-shaped. When the work (10) is placed on the first arm (1) (41) in the horizontal state,
A support member (not shown) may be provided between the lower part of the first arm (1) (41) and the carriage (5) to support the load.

Next, as shown in FIG. 11, the work (10) mounted on the L-shape of the first arm (1) (41) and the second arm (2) (42) is inclined by approximately 45 °. The workpiece (10) can be lifted by pivoting to the position where it has been moved. At this time, the first arm (1) (41) constituting the L-shape
The piston of the hydraulic cylinder (12) is pushed out to rotate the first arm (1) (41) from a substantially horizontal position to a position inclined at approximately 45 °, and a second hydraulic cylinder (22).
By pulling the piston, the second arm (2) (42) is rotated from a substantially vertical position to a position inclined at approximately 45 ° to rotate the work (10) to a position inclined at approximately 45 ° to move the work (10). It is something to lift. The position where the work (10) is inclined approximately 45 ° from the horizontal position is the position where the work is lifted up to the maximum, and the center of gravity of the work (10) is located substantially on the vertical line of the rotation axis (3). It is in a stable load state on the trolley.

[0042]

Embodiment 2 A second embodiment of the present invention will be described with reference to FIGS. FIG. 17 is a plan view of the transport vehicle of the second embodiment, and FIG. 18 is a front view of FIG. As shown in FIGS. 17 and 18, the cart (5) for transporting a long work is composed of a horizontal frame (50) and a vertical frame (51) of the cart, and wheels (54).
Is provided so that the vehicle can travel on the rail (55) in the X direction. Two supporting portions (44) are provided on the trolley (5).
Both are provided so as to be movable in the Y direction. Support (4
4) has a wheel (46) at its end (45) and is provided movably in the Y direction on rails (47) of two opposing horizontal frames (50). When the long work (10) is mounted, the connection of the work (10)
The hanging bracket or the like is the first arm (41) or the second arm of the reversing mechanism.
The two support parts (4
4) is appropriately moved in the Y direction and mounted on a truck (5).

The first arm (41) and the second arm (42) are rotatable around the rotation shaft (3) of the arm support member (53) in the same manner as in the first embodiment. Is provided. The first arm (41) is connected to the first hydraulic cylinder (12), and the second arm (42) is connected to the second hydraulic cylinder (12).
Being connected to a hydraulic cylinder (22),
The L-shape is formed by the first arm (41) and the second arm (42) of the reversing mechanism so that a long work can be reversed and lifted.

[0044]

Embodiment 3 A third embodiment of the present invention will be described with reference to FIGS. FIG. 19 is a plan view of the transport vehicle of the third embodiment, and FIG. 20 is a front view of FIG. In the third embodiment, a bogie provided with a long work reversing mechanism is divided, and as shown in FIGS.
It is divided into two. A trolley (5) for transporting a long workpiece divided into two is composed of a horizontal frame (50) and a vertical frame (51) of the trolley, is provided with wheels (54), and is mounted on a rail (55) in the X direction. You can run on.

Each divided cart (5) has Y
A support (44) movable in the direction is provided. The support (44) has wheels (46) at its ends (45) and the rails (47) of two opposing lateral frames (50).
It is provided so as to be movable in the Y direction on the upper side. When mounting a long work (10), the work (10)
The two supports (44) are moved in the Y direction as appropriate so that the connection, the hanging fitting, etc., do not hit the first arm (41) or the second arm (42) of the reversing mechanism, and are mounted on the bogie (5). Is what you do.

Then, similarly to the above-described embodiment, the support portion (4
A first arm (41) and a second arm (42) are rotatably provided on a rotation shaft (3) of the arm support member (53) of (4). The first arm (41) is connected to the first hydraulic cylinder (12), and the second arm (42) is connected to the second hydraulic cylinder (22), and the first arm (41).
And the second arm (42) can form an L-shape to perform reversal and lifting of a long work. Also,
Since the carriage is divided for each mechanism for reversing and lifting a long work, synchronization means (not shown) for traveling of the carriage,
And an inversion synchronization means (not shown) such as forming an L-shape by the first arm and the second arm.

[0047]

Embodiment 4 A fourth embodiment of the present invention will be described with reference to FIGS. In the fourth embodiment, a bogie provided with a reversing mechanism for a long work is divided, and FIGS.
As shown in FIG. 2, the cart (5) is divided into two. A trolley (5) for transporting a long workpiece divided into two is composed of a horizontal frame (50) and a vertical frame (51) of the trolley, is provided with wheels (54), and is mounted on a rail (55) in the X direction. You can run on.

One of the divided carts (5) is provided with a support (44) movable in the Y direction. The support part (44) has a wheel (46) at its end (45), and Y is mounted on the rail (47) of two opposing horizontal frames (50).
It is provided movably in the direction. A support (4) is fixed to the other of the divided carts (5). When the long work (10) is mounted, the support (a) fixed to the carriage (5) so as not to contact the first arm or the second arm of the reversing mechanism with a connection, a suspending fitting or the like of the work (10). 4) Adjust the distance between the movable portion and the supporting portion (44).

The support portion (44) movable to one of the divided carriages (5) has a first arm (41) attached to the rotating shaft (3) of the arm support member (53), similarly to the above embodiment. And a second arm (42) are provided rotatably, the first arm (41) is connected to the first hydraulic cylinder (12), and the second arm (42) is connected to the second hydraulic cylinder (22). Have been. Further, the support portion (4) fixed to the other divided carriage (5) has a rotation shaft (3) of the arm support member (52) as in the above embodiment.
A first arm (1) and a second arm (2) are rotatably provided on the first arm (1), and the first arm (1) is connected to a first hydraulic cylinder (1).
2), and the second arm (2) is connected to a second hydraulic cylinder (22).

The operation of the first hydraulic cylinder (12) and the second hydraulic cylinder (22) allows the first arm (1) (4)
The L-shape is formed by 1) and the second arm (2) (42) so that a long work can be inverted and lifted. In addition, since the carriage is divided for each mechanism for reversing and lifting a long work, synchronization means (not shown) for traveling of the carriage, and inversion such as forming an L-shape by the first arm and the second arm. (Not shown).

[0051]

Embodiment 5 As a fifth embodiment of the present invention, the operation of the carrier will be described. FIG. 23A is a plan view showing an operation of a transport trolley for transporting a long work, and FIG. 23B is a side view. In this transport trolley, a support (4) of one long work reversing mechanism is fixed to a trolley (5), and another support (44) is movably provided. .

When transporting from zone A to zone B shown in FIGS. 23A and 23B, the long work (10) on the pillow (30) in zone A is lifted by the first arm and the second arm. It is mounted on the carrier (5). At this time, a long work (1
The support (44) is moved to an appropriate position in the longitudinal direction of the long work (10) so that the first arm and the second arm do not hit the connection and the hanging metal fitting of (0), and the bogie (5). To be mounted on. Next, a long work (10) is mounted and a trolley (5)
Travels in the direction of the arrow on the rail (55). Then, the wafer is conveyed to the zone B, stopped at a predetermined pillow (31), and the first arm and the second arm are rotated to work (10) on the pillow (31).
Is to put.

[0053]

[Embodiment 6] As a sixth embodiment of the present invention, the operation of a carriage having a reversing mechanism for a long work will be described with reference to FIG. FIGS. 24 (a) to 24 (c) show that a long work is almost 4
This is a case in which the robot is lifted five times and transported. First, the support portion (44) is connected to its wheel (so that the first arm (41) and the second arm (42) do not hit the connection of the long work (10) on the pillow (30), the hanging fitting, and the like. In step 46), the rail (47) is moved and set at an appropriate position. Next, as shown in FIG. 24A, an L-shaped member formed by a first arm (1) (41) and a second arm (2) (42) under a work (10) on a pillow (30). The first horizontal arm (1) (41) is moved as shown by the arrow. Vertical second
The work (10) is automatically stopped at the position of the work (10) by a touch sensor provided on the arm (2) (42).

Next, the first arm (1) (41) and the second arm (2) (42), which are L-shaped, are respectively rotated by hydraulic cylinders, and the work (10) is put on the pillow (3).
Lift from 0). Further, as shown in FIG. 24 (b), the work (1) is rotated by approximately 45 degrees to position the L-shaped corner on a substantially vertical line of the rotation axis (3).
Lift 0). Then, the carriage (5) is transported on the rail (55) in the direction of the arrow. Then, as shown in FIG. 24 (c), the cart (5) on which the work (10) is placed is placed on the pillow (3).
The work (10) is stopped at the position (1), the first arm (1) (41) forming the L-shape is rotated to the horizontal position, and the work (10) is placed on the pillow (31). In this manner, the long work (10) is lifted by inverting the long work by approximately 45 degrees, and is conveyed in parallel in the original state.

[0055]

Embodiment 7 As a seventh embodiment of the present invention, FIG.
(A) to (c) show the operation of a transport trolley provided with a reversing mechanism when a long workpiece is lifted, transported, and reversed by approximately 45 degrees while being reversed. First, the first arm (4) is connected to a connection of the long work (10) on the pillow (30), a hanging metal fitting, or the like.
The support portion (44) is set at an appropriate position by moving the rail (47) with its wheels (46) so that 1) and the second arm (42) do not hit.

Next, as shown in FIG. 25A, the first arm (1) is placed under the work (10) on the pillow (30).
The L-shaped horizontal first arm (1) (41) formed by (41) and the second arm (2) (42) is moved as shown by the arrow. The touch sensor provided on the vertical second arm (2) (42) automatically stops at the position of the work (10).

Next, the first arm (1) (41) and the second arm (2) (42), which are L-shaped, are each rotated by a hydraulic cylinder, and the work (10) is put on the pillow (3).
0), and further rotate, and as shown in FIG. 25 (b), rotate approximately 45 degrees to position the L-shaped corner on a substantially vertical line of the rotation axis (3), thereby making the work (1).
Lift 0).

Next, the carriage (5) is moved on the rail (55) as shown by the arrow, and the work (10) is transported. Then, as shown in FIG. 25C, the carriage (5) on which the work (10) is placed is stopped at the position of another pillow (31), and the second arm (2) ( 42) is rotated to a horizontal position, and the work (10) is placed on the pillow (31).
In this way, the long work (10) is transported and turned 90 degrees.

[0059]

Embodiment 8 FIG. 26 shows an eighth embodiment of the present invention.
(A) to (e) and FIGS. 27 (f) to (h) show the operation when the long work is reversed by 180 degrees. First, the support portion (44) is connected to its wheel (so that the first arm (41) and the second arm (42) do not hit the connection of the long work (10) on the pillow (30), the hanging fitting, and the like. In step 46), the rail (47) is moved and set at an appropriate position. Next, as shown in FIG. 26A, an L-shaped pillow (30) formed below the work (10) by the first arm (1) (41) and the second arm (2) (42). The horizontal first arm (1) (41) is moved as shown by the arrow. Vertical second
The work (10) is automatically stopped at the position of the work (10) by a touch sensor provided on the arm (2) (42).

Next, the first arm (1) (41) and the second arm (2) (42), which are L-shaped, are each rotated by a hydraulic cylinder, and the work (10) is put on the pillow (3).
26), the work (10) is rotated by approximately 45 degrees to position the L-shaped corner on a substantially vertical line of the rotation axis (3) as shown in FIG. 26 (b).
Lifting. After lifting the work (10), the trolley (5) is moved as indicated by an arrow on the rail (55) while the load of the work (10) is stored in the two L-shaped arms, and the right side of the pillow (30) is moved. The work (10) is transported in the direction. Next, as shown in FIG. 26 (c), the second arm (2) (42) forming the L-shape is rotated so as to be in a horizontal position, and the work (10) is turned 90 degrees and the pillow ( 30) Temporarily put on top.

Next, as shown in FIG.
The arms (1) and (41) are turned to the horizontal position, and the first arm (1) (41) and the second arm (2) (42) are made horizontal. Next, as shown in FIG. 26 (e), the first arm (1) (41) and the second arm (2) (4)
2) is passed under the work (10) from the right side to the left side of the pillow (30) as indicated by an arrow. Then, FIG.
As shown in (f), the second arm (2) (4
2) is rotated to a vertical position, and the first arm (1) (41) and the second arm (2) (42) form an L-shape.

Next, as shown in FIG. 27 (g), the first arms (1) (41) and the second arms (2) (42), which are L-shaped, are rotated to approximately 45 degrees. Lift the work (10). Here, the carriage (4) is moved as shown by the arrow, and the work (10) is transported to the right of the pillow (30). The transferred work (10) is, as shown in FIG. 27 (h), an L-shaped second arm (2) (4).
2) is rotated so as to be in a horizontal position, and the pillow (30) is turned 180 degrees from the initial state.

The above long work shown in FIGS.
In the case of turning over by 80 degrees, a specific embodiment thereof is, for example, a case in which a long work is a box girder of a highway having a large square or rectangular cross section of about 3 m on a side, and FIG.
Assembling the box girder and welding the upper part, and FIG.
It is inverted at the stage shown in FIG. In FIG. 20 (h), which is inverted by 180 degrees, the other side of the box girder is welded and appropriately conveyed to a stocking place (payback place).

[0064]

As described above, according to the present invention,
A long work reversing mechanism is provided on a rotation shaft so that a first arm and a second arm can be independently rotated, respectively. The first arm and the second arm form an L-shape and are used for a long work. Since the work can be inverted and lifted, the work can be lifted without providing a separate lifting device on the trolley. The long work can be lifted and transported, and the work can be inverted 90 degrees or 180 degrees. Operation can be performed. Further, since the work reversing mechanism is provided so as to be movable in the longitudinal direction of the long work, the L-shaped formed by the first arm and the second arm can be located at the center of gravity of the work in the longitudinal direction, It can be stably mounted on a trolley and can be prevented from dropping during transport and reversal. Further, in the case of a long work in which a metal fitting or a lifting metal is fixed to the work, there is an effect that the operation of placing the work can be easily performed while avoiding contact with the work.

As described above, the long work can be lifted and transported, and various operations such as 90-degree reversal and 180-degree reversal can be performed. The work reversing mechanism is provided so as to be movable in the longitudinal direction of the long work. As a result, the time required for reversing, lifting, and transporting a long work such as a bridge, a building steel frame, and the like for a long work having a rectangular cross section is shortened, and the work can be performed efficiently and safely. It has the effect of. In addition, compared to the conventional method in which a lifting device is separately provided, the occupied area is relatively small, and the manufacturing cost is significantly reduced, so that it is economical.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a plan view showing a first embodiment of the present invention.

FIG. 3 is a diagram for explaining the operation of the first embodiment of the present invention.

FIG. 4 is a diagram for explaining the operation of the first embodiment of the present invention;

FIG. 5 is a diagram for explaining the operation of the first embodiment of the present invention.

FIG. 6 is a diagram for explaining the operation of the first embodiment of the present invention.

FIG. 7 is a diagram for explaining the operation of the first embodiment of the present invention.

FIG. 8 is a diagram for explaining the operation of the first embodiment of the present invention.

FIG. 9 is a diagram for explaining the operation of the first embodiment of the present invention.

FIG. 10 is a diagram for explaining the operation of the first embodiment of the present invention.

FIG. 11 is a diagram for explaining the operation of the first embodiment of the present invention.

FIG. 12 illustrates the operation of the present invention.

FIG. 13 is a diagram illustrating the operation of the present invention.

FIG. 14 illustrates the operation of the present invention.

FIG. 15 illustrates the operation of the present invention.

FIG. 16 is a diagram illustrating an operation of the present invention.

FIG. 17 is a plan view showing a second embodiment of the present invention.

FIG. 18 is a front view showing a second embodiment of the present invention.

FIG. 19 is a plan view showing a third embodiment of the present invention.

FIG. 20 is a front view showing a third embodiment of the present invention.

FIG. 21 is a plan view showing a fourth embodiment of the present invention.

FIG. 22 is a front view showing a fourth embodiment of the present invention.

FIG. 23 is a diagram showing a fifth embodiment of the present invention.

FIG. 24 is a diagram showing a sixth embodiment of the present invention.

FIG. 25 is a diagram showing a seventh embodiment of the present invention.

FIG. 26 is a diagram showing an eighth embodiment of the present invention.

FIG. 27 is a diagram showing an eighth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 41 1st arm 2, 42 2nd arm 3 Rotating shaft 4, 44 Support frame 5 Cart 10 Work 11 Link 12 1st hydraulic cylinder 22 2nd hydraulic cylinder 46 Wheel 47 Rail 50 Vertical frame of truck 51 Horizontal frame of truck 54 trolley wheels

Claims (3)

[Claims] In a transport carriage provided with a long work reversing mechanism, the long work reversing mechanism is provided with a first arm and a second arm rotatably provided on a rotating shaft independently of each other. One arm is provided with a first working cylinder at a link portion thereof, and the second arm is provided with a second working cylinder at a link portion thereof. The first arm and the second arm are L-shaped. For reversing and lifting a long work placed thereon, and a plurality of the long work reversing mechanisms are provided on a carriage, and at least one of the long work reversing mechanisms is a mounting length. A transport trolley provided with a reversing mechanism for a long workpiece, the transport trolley being provided so as to be movable on the trolley in the longitudinal direction of the long workpiece. 2. The carriage according to claim 1, wherein the carriage provided with the long work reversing mechanism is a divided carriage. 3. A sensor for detecting a workpiece is provided on the first arm and / or the second arm.
Or a transport trolley provided with the long work reversing mechanism according to 2.