JPH11246191A - Heavy weight carrying device and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To safely carry a heavy cargo by a small number of workers, and thereby enhance its operating efficiency. SOLUTION: An inclining leg 23 is supported rotatably around a pin 24 at the middle part in the vertical direction of a main body frame at its one end side, and the range of its revolution angle is regulated by an angular regulating plate 26 in the area between θ1 and θ2 . By the constitution, a carrying device 100 can be formed into three postures, that is, a first carrying posture (indicated by a dash line) where a main wheel 13 and a front wheel are brought into contact with a road surface, an intermediate posture (indicated by a solid line) where the main wheel 13 and a rear wheel 28 are brought into contact with the road surface, and furthermore, the revolution angle of the inclining leg 23 is held at θ1 , and a second carrying posture (indicated by a two dot chain line) where the main wheel 13 and the rear wheel 28 and brought into contact with the road surface, and the revolution angle of the inclining leg 23 is held at θ2 .

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heavy object transfer apparatus and method for transferring heavy objects such as a control panel and an operation panel in a plant construction or the like.

[0002]

2. Description of the Related Art As shown in FIG. 8, a post type on-site operation panel 1 installed in a plant, for example, a water treatment plant,
The operation box 3 is mounted on the upper part of the support 2, and the base plate 4 for mounting is mounted on the lower part of the support 2. The operation box 3 has a width (W) of 300 to 800 m.
m, depth (D): 300-400 mm, height (H
2): It has an external shape of 300 to 700 mm and has 1600
Since the post-type operation panel 1 is located at a height of mm, the post-type on-site operation panel 1 has a high center of gravity and is easily collapsed.
The post type on-site operation panel 1 weighs 150 kg.

Conventionally, when such a post-type field operation panel 1 is transported, as shown in FIG. 9, the post-type field operation panel 1 which has been transported to the field is erected on a cart 5 and installed at a mounting position. Had been transported to At this time, the post-type on-site operation panel 1 is heavy and has a structure that is easy to fall down. A worker, such as a person, carries the post-type operation panel 1 from the side of the cart 5 while supporting the same.

Further, as shown in FIG. 10, the post type on-site operation panel 1 is mounted on a cart 5 in a falling state and transported to an installation position. In this transport method, although the number of support staffs of the post-type on-site operation panel 1 during the transport can be reduced, when the post-type on-site operation panel 1 is put on the truck 5 and when the post-type on-site operation panel 1 is lowered, the work of about four people is required. Staff is required.

Further, in the above-described conventional transport method, the carriage 5 cannot be brought close to the installation position of the post-type field operation panel 1. Then, after transporting the post-type field operation panel 1 to the vicinity of the installation position by the trolley 5, the post-type field operation panel 1 is lifted and transported to the installation position by about four workers, and the post-type field operation panel 1 is moved. Had been installed.

[0006]

As described above, in the conventional transfer method, the post-type on-site operation panel 1 is mounted on the trolley 5 for transfer, so that a large number of workers are required for transfer, and work efficiency is reduced. There was a problem that was very bad.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and a heavy-weight transfer apparatus capable of safely transferring a heavy load with a small number of people and improving the work efficiency, and a heavy-load transfer apparatus. The aim is to get the method.

[0008]

According to the present invention, there is provided a heavy object transporting apparatus having a foot portion extending forward from a lower end of a main body frame to have an L-shaped side surface, and a main wheel connected to the main body frame. A body mounted on each of the lower ends and a front wheel mounted on each of the front ends of the foot, and one end supported rotatably about a horizontal axis at an intermediate portion in the vertical direction of the body frame; Side extends to the rear of the body frame,
A tilting foot having a rear wheel mounted on the other end side, and a second angle fixed to the body frame, wherein the angle of the tilting foot with respect to the body frame is a first angle and a second angle greater than the first angle.
And an angle regulating plate that regulates the rotation range of the tilting foot around the horizontal axis so as to be between the above angles, and is installed between the main body frame and the tilting foot. A first transporter having tilting foot opening and closing means for rotating about a horizontal axis, wherein the front wheel and the main wheel are in contact with each other, and a center of gravity of a heavy object to be transported is located between the front wheel and the main wheel. The main wheel and the rear wheel are in contact with the posture and the angle of the inclination foot with respect to the main body is the second angle, and the center of gravity of the heavy object to be conveyed is located between the main wheel and the rear wheel. The main wheel and the rear wheel are grounded, and the center of gravity of the heavy object to be conveyed is the main wheel and the horizontal axis. And an intermediate position located between the two positions.

The tilting foot opening / closing means includes a pair of multiple pulleys mounted on the body frame and the tilting foot, and one end fixed to one of the pair of multiple pulleys. It comprises an operation rope alternately wound around each pulley of a pair of multiple pulleys, and a stopper for restricting return of the operation rope.

Further, a lifter is mounted on the front surface of the main body frame so as to be able to move up and down.

Also, a turntable base having a U-shaped planar shape, a large number of spherical roller bearings arranged on the upper surface, and being inserted into the claw of the lifter, and a pair of U-shaped planar shapes The flat plate is connected and integrated integrally by a connecting member, the connecting member is loosely fitted into the opening of the turntable base, and the turntable is sandwiched between the pair of flat plates. The turntable includes a turntable mounted on the gantry, and a turntable stopper in which a large number of spherical roller bearings are arranged on the upper surface and is mounted so as to close the open end of the turntable gantry.

[0012] Also, in the method of transferring a heavy object using the above-mentioned heavy object transfer device, the transfer device is set to a first transfer position in which a front wheel and a main wheel are in contact with a ground, and the heavy object to be transferred is mounted on a main body. The fixing step, the angle of the tilting foot with respect to the main body frame is set to a first angle, the main body is caused to fall backward with the contact point of the main wheel with the road surface as a fulcrum, and the rear wheel is brought into contact with the road surface; Causing the center of gravity of the object to assume an intermediate position between the main wheel and the horizontal axis that is the center of rotation of the tilting foot; and Expanding the tilting foot from the first angle to the second angle to take a second conveyance posture in which the main wheel and the rear wheel are in contact with the ground, and moving the conveyance device to the second conveyance position. A step of manually pushing and moving to a position near the target position in the posture, and The intermediate position in which the inclination foot is opened and closed by closing the inclination foot until the angle of the inclination foot with respect to the main body is changed from the second angle to the first angle, and the main wheel and the rear wheel are grounded. And setting the first transporting posture in which the main body stands upright with the contact point between the main wheel and the road surface as a fulcrum and the front wheel contacts the road surface, and the front wheel and the main wheel contact the ground. And a step of moving the transfer device to the target position in the first transfer position, releasing the fixing of the heavy object, and placing the heavy object at the target position.

In the above-described step of moving the transfer device to the target position in the first transfer position, releasing the fixing of the heavy object and placing the heavy object at the target position, a large number of bearings are arranged on the upper surface. Place the turntable on the target position, place the heavy object on the turntable, adjust the direction and position of the heavy object, lift the heavy object, pull out the turntable, and move the heavy object to the target position. It is intended to be put in.

In the turntable, a large number of the bearings are radially arranged on the upper surface, and the bearings are mounted so that the rotation axis direction of each bearing is directed toward the radial arrangement center.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. Embodiment 1 FIG. 1 and 2 are an exploded perspective view and a side view, respectively, showing a transport device according to Embodiment 1 of the present invention. 1 and 2, a main body 10 includes a main body frame 11 and a foot portion 12 extending forward from a lower end of the main body frame 11, has a substantially L-shaped side shape, and has both lower end sides of the main body frame 11. Main wheels 13 are attached to the front wheels 1 on both sides of the tip of the foot portion 12, respectively.
4 is attached. The main body frame 11 is formed in a rectangular frame shape having a pair of a vertical frame 11a, an upper frame 11b, and a lower frame 11c as main components, and a foot portion 12 is detachably attached to a front surface of the lower frame 11c. And a pair of feet 12b fastened and fixed to both ends of the adapter 12a by mounting screws 15. Lifter 16
A claw mounting plate 17 attached to the front surface of the main body frame 11 so as to be able to move up and down, and an L-shape which is inserted into pins 18 provided on both end surfaces of the claw mounting plate 17 and extends forward of the main body frame 11. It comprises a pair of claws 19, a snap ring 20 attached to the protruding portion of the pin 18 and fixing the claws 19 to the claw mounting plate 17, a rope 21 for raising and lowering the claw mounting plate 17, and a claw vertical handle 22.

The tilting foot 23 is inserted into a pin 24 as a horizontal shaft provided on the vertical side intermediate portion of the vertical frame 11a of the main body frame 11 and extends to the rear of the main body frame 11, and the retaining ring 25 Is attached to the protrusion of the pin 24 so that the pin 24
It is mounted to be rotatable around. This foot for inclination 2
3 is provided by an angle regulating plate 26 fixed to the vertical frame 11a.
The angle with respect to the main body frame 11 is regulated so as to rotate within an angle range of θ ₁ (first angle) and θ ₂ (second angle). The tilting foot 23 is divided into two parts, left and right. After being inserted into the pin 24 from the left and right, it is tightened and integrated by the mounting screw 27. Further, a rear wheel 28 is attached to both ends of the tip of the tilting foot 23. A pair of triple pulleys 30A and 30B are mounted on the rear surface of the lower frame 11c of the main body frame 11 and the tread plate 23a of the tilting foot 23, and the operation rope 31 is connected to the pair of triple pulleys 30A and 30B.
It is bridged between and constitutes a tilting foot opening / closing means. The heavy object transporting apparatus 100 thus configured further includes a positioning adapter 40 and a fixing adapter 41.

FIG. 3 is a view for explaining the structure of the tilting foot opening / closing means. FIG. 3 (a) is a schematic view of the entire structure.
(B) is a plan view of the triple pulley. In FIG. 3, one triple pulley 30A includes three pulleys 30a rotatably arranged in parallel, a fixed roller 30b for fixing one end of the operation rope 31, and a pair of eccentricities as stoppers for preventing the operation rope 31 from returning. It has a roller 30c. The other three pulleys 30B include three pulleys 30a rotatably arranged side by side. Then, the operation rope 31 is fixed at one end to the fixed roller 30b, and is alternately bridged between the pulleys 30a of the pair of triple pulleys 30A and 30B, and then passed between the pair of eccentric rollers 30c. Be attached. Therefore, by pulling the operation rope 31,
Even if the distance between the pair of triple pulleys 30A and 30B is shortened and the pulling of the operation rope 31 is stopped, the return of the operation rope 31 is prevented by the pair of eccentric rollers 30c, and the distance between the triple pulleys 30A and 30B. Is maintained and the eccentric roller 3
The distance between the pair of triple pulleys 30A and 30B is increased by releasing the rope fixation of 0c and extending the operation rope 31. The operation of the operation rope 31 allows the tilting foot 23 to be opened and closed.

Next, the operation of the heavy goods transport device 100 will be described with reference to FIG. This heavy object transfer device 10
0 is configured such that the inclination foot 23 can take two angles (θ ₁ , θ ₂ ) with respect to the main body frame 11 as shown in FIG. Therefore, the heavy object transport device 1
00 is a first transfer posture (indicated by a dashed line in FIG. 4) in which the main wheels 13 and the front wheels 14 can contact the road surface and travel in a substantially vertical state on the main body frame 11 of the main body 10;
The second transporting posture (indicated by a two-dot chain line in FIG. 4) in which the main body 13 and the rear wheel 28 can travel on the main body frame 11 of the main body 10 in an inclined state while the main wheel 13 and the rear wheel 28 And an intermediate position (shown by a solid line in FIG. 4) in which the main body frame 11 of the main body 10 is held slightly inclined with respect to the vertical plane. And the first
In the transport position of FIG.
And the front wheel 14. In the intermediate position, the center of gravity of the heavy object is located between the main wheel 13 and the pin 24. Furthermore, in the second transport position, the center of gravity of the heavy object is located between the main wheel 13 and the rear wheel 28.

Here, when shifting from the first transfer posture to the intermediate posture, the main body 10 may be turned backward with the contact point of the main wheel 13 with the road surface as a fulcrum. At this time, a large overturning force is required until the center of gravity of the heavy object reaches the point of contact with the road surface of the main wheel 13, but when the center of gravity of the heavy object exceeds the point of contact with the road surface of the main wheel 13, the main body 10 loses its inertia. To fall backward. When the rear wheel 28 is in contact with the ground, the center of gravity of the heavy object is located between the main wheel 13 and the pin 24. After the vehicle 28 has landed, an accident such as turning over with the contact point of the rear wheel 28 with the road surface as a fulcrum is prevented. That is, the inertia force of the heavy object that falls backward does not increase, and the inertia force is received by the landing of the rear wheel 28, and the intermediate posture can be taken with a small amount of labor. Further, when shifting from the intermediate position to the second transfer position, the weight of the heavy object acts as an opening force of the tilting foot 23 by pulling out the operation rope 31 little by little,
The tilting feet 23 are gradually spread. And the foot for inclination 2
When the angle between 3 and the main body frame 11 becomes θ ₂ , the end of the tilting foot 23 comes into contact with the angle regulating plate 26, and further opening operation of the tilting foot 23 is prevented, and the second transport posture is changed. Can be taken. At this time, the center of gravity of the heavy
And the rear wheel 28, the opening force of the tilting foot 23 due to the weight of the heavy object, the contact between the end of the tilting foot 23 and the angle regulating plate 26, and a pair of Eccentric roller 3
0c, which is received by fixing the operation rope 31;
Stable hand pushing can be realized.

When shifting from the second transport position to the intermediate position, the tilting foot 23 is gradually closed by pulling the operation roller 31 little by little. Then, when the angle between the tilt foot 23 and the body frame 11 becomes theta _1, the ends of the tilt foot 23 abuts against the angle restriction plate 26, closing the more inclined the foot 23 is prevented, the intermediate Can take a posture. At this time, the triple pulleys 30A, 30B
Is used, the pulling force of the operation roller 31 can be small, and the load on the operator can be reduced. Further, even if the pulling of the operation roller 31 is stopped, the pair of eccentric rollers 30c
As a result, the return of the operation rope 31 is prevented, so that it is not necessary to continuously pull the operation rope 31 to return to the intermediate position at a stretch, and at this point, the load on the operator is reduced.
When shifting from the intermediate position to the first transfer position, the main body 10 is set with the contact point of the main wheel 13 with the road surface as a fulcrum.
May be erected forward. At this time, a large overturning force is required until the center of gravity of the heavy object reaches the point of contact with the road surface of the main wheel 13, but when the center of gravity of the heavy object exceeds the point of contact with the road surface of the main wheel 13, the main body 10 loses its inertia. As a result, it is possible to stand forward and return to the first transport position with a small amount of labor.

Next, the transfer of the post type on-site operation panel 1 using the heavy object transfer device 100 will be described with reference to FIG. First, the transport device 100 is manually pushed and moved in the first transport position, and as shown in FIG. 5A, the base plate 4 of the post-type field operation panel 1 transported to the site is positioned between the pair of feet 12b. The transport device 100 is set so as to enter. Then, the user operates the claw vertical handle 22 to raise the claw 19 until the claw 19 hits the bottom surface of the operation box 3.
Then, the transfer device 100 is manually pushed and moved while being addressed to the positioning adapter 40 and the fixing adapter 41, and the root side of the claw 19 is moved through the positioning adapter 40, and the front surface of the main body frame 11 is moved through the fixing adapter 41. It is brought into close contact with the side wall surface of the operation box 3. Then, fastening band 4
2, the operation box 3 is fastened and fixed to the base of the claw 19. Then, the wheel stopper 43 is set, and the operator rides on the tread plate 23a of the tilting foot 23 to turn the main body 10 backward with the contact point of the main wheel 13 with the road surface as a fulcrum, as shown in FIG. So that the transfer device 100 is in the intermediate position. Further, the operating rope 31 is extended to extend the tilting foot 2.
3, the transport device 100 is set to the second transport position. Then, the wheel stopper 43 is removed, and as shown in FIG. 5C, the transfer device 100 is manually pushed to the vicinity of the target position in the second transfer posture.

When the vehicle reaches the vicinity of the target position, the operating rope 31 is pulled to close the tilting foot 23 and
Is in the middle position. Then, the wheel stopper 43 is set, and the main body 10 is erected forward with the contact point of the main wheel 13 with the road surface as a fulcrum. As shown in FIG. And Thereafter, the wheel stopper 43 is removed, and as shown in FIG.
The transport device 100 is manually pushed and travels to move to a target position. In this example, since the base 44 on which the post-type on-site operation panel 1 is mounted protrudes from the road surface, the claw 19 is operated by operating the claw up / down handle 22 to raise the post-type on-site operation panel 1 from the road surface to a predetermined height. The user will move to the target position while floating. Alternatively, when the post-type on-site operation panel 1 is mounted on the transport device 100, the
The operation box 3 may be fastened and fixed to the base of the claw 19 by the fastening band 42 while the control box 3 is lifted from the road surface at a predetermined height. Therefore, the transfer device 100 is moved and adjusted so that the position of the post type on-site operation panel 1 is adjusted to the base 44. Then, FIG.
(F), the claw 19 is lowered by operating the claw up / down handle 22, the post-type on-site operation panel 1 is lowered onto the base 44, and the post-type on-site operation panel 1 is anchored to the base 44. It is fixed with bolts 45. Then, the fastening band 42 is removed, the transport device 100 is pulled out, and the transport and installation of the post-type field operation panel 1 are completed.

As described above, according to the first embodiment,
Since the tilting foot 23 is configured to be rotatable with respect to the main body frame 11 in the angle range of θ ₁ and θ ₂ , the intermediate posture between the small inclination amount and the second conveyance posture with the large inclination amount is set. A two-stage tilt posture can be taken. Therefore, the first
From the transfer position to the second transfer position via the intermediate position, so that even heavy objects with a high center of gravity can be safely transferred to the second transfer position without falling down with a small number of workers. Can be performed, and the sheet can be conveyed in the second conveyance posture having a large inclination amount, so that the fall during the conveyance is prevented, and the number of personnel supporting the post-type on-site operation panel 1 from the side is reduced, so that the stable hand-push traveling can be performed. In addition, since the transfer position is shifted from the second transfer position having a large inclination amount to the first transfer position via the intermediate position, even a heavy object having a high center of gravity can be safely moved down by a small number of workers. Then, the operation for shifting to the first transfer posture can be performed. As a result, the number of workers involved in transport can be reduced, the working efficiency can be improved, the load on the workers can be reduced, and a heavy load transport device and a heavy load transport method capable of performing safe transport can be obtained.

Further, since the triple pulleys 30A and 30B and the operating rope 31 constitute the tilting foot opening / closing means, the force for opening and closing the tilting foot 23 can be small, and the load on the operator can be reduced. . Further, since the return of the operation rope 31 is prevented by the pair of eccentric rollers 30c, the operation rope 31
Is released, that is, there is no need to pull the operation rope 31 to close the inclination feet 23 at a stretch, and at this point, the load on the worker can be reduced. Further, since the lifter 16 is mounted, the post-type on-site operation panel 1 can be lifted off the road surface and run, and an accident in which the post-type on-site run 1 collides with a protrusion on the road surface and falls down can be prevented beforehand, and safety can be prevented. Transport can be realized. Further, the post-type on-site operation panel 1 can be moved up and down depending on the state of the installation section of the post-type on-site operation panel 1, and installation on the installation section becomes easy. Further, since the foot portion 12, the lifter 16, and the tilting foot 23 are detachably attached to the main body frame 11 and are configured to be disassembled, respectively, the volume at the time of transportation and storage is small, and the transportability and Excellent storage.

In the first embodiment, the first angle θ ₁ is 45 degrees and the second angle θ ₂ is 90 degrees. However, the first angle θ ₁ and the second angle θ ₂ It is not limited to an angle. In addition, especially for the first angle θ ₁ , θ ₁
In but less than 20 degrees from the intermediate position when the case does not enter occurs, theta ₁ exceeds 45 degrees between some heavy when taken intermediate position of the center of gravity position is a main wheel 13 and the rear wheel 28 Since the force for erecting in the first conveyance posture becomes large, 2
It is desirable that 0 degrees ≦ θ ₁ ≦ 45 degrees.

Embodiment 2 FIG. FIG. 6 is a diagram for explaining a method of conveying a heavy load according to the second embodiment of the present invention.
(A) is a perspective view thereof, and (b) of FIG. 6 is a sectional view thereof. In FIG. 6, the turntable 46 is a bearing 4
Many bearings 6a are radially arranged on a flat plate so as to draw concentric circles, and the bearings 46a are mounted so that the rotation axis direction of each bearing 46a faces the radial arrangement center. In the second embodiment, in the transfer method using the transfer device 100 described in the first embodiment, the turntable 46 is used.
The direction of the post-type field operation panel 1 when installed on the foundation 44 is adjusted and changed by using. That is,
In many cases, the post-type on-site operation panel 1 has an installation orientation with respect to the foundation 44, and it is necessary to adjust the orientation at the time of installation. The other configuration is the same as that of the first embodiment.

Next, features of the second embodiment will be described. As in the first embodiment, the post-type field operation panel 1 is transported to near the target position using the transport device 100, and the transport device 100 is set to the first transport position via the intermediate position. Thereafter, the transfer device 100 is manually pushed and moved to move to the target position. Here, turntable 46
Is placed on the base 44, and the claw 19 is lowered to place the base plate 4 on the turntable 46. Then, the fastening band 42 is removed, and the post-type field operation panel 1 is rotated on the turntable 46 to change the direction to a predetermined direction.
Then, after raising the claw 19 and pulling out the turntable 46, the claw 19 is lowered, the base plate 4 is placed on the base 44, and the post-type field operation panel 1 is fixed to the base 44 with anchor bolts. Thereafter, the transport device 100 is pulled out, and the transport and installation of the post-type field operation panel 1 are completed.

According to the second embodiment, the turntable 46 is installed on the foundation 44, and the post-type field operation panel 1 is once mounted on the turntable 46 to adjust the direction. Even in the case where the direction of entry of the transport device 100 to the foundation 44 is regulated by the influence of an object or the like, the direction of the post-type on-site operation panel 1 is easily changed,
The post type on-site operation panel 1 can be installed in a predetermined direction. The turntables 46 are formed by arranging a large number of bearings 46a radially on a flat plate so as to draw concentric circles, and mounting the bearings 46a with the rotation axis direction of the bearings 46a facing the center of the radial arrangement. When the on-site operation panel 1 is mounted and rotated, the post-type on-site operation panel 1 rotates so that the center thereof approaches the center position of the turntable 46. Therefore, if the installation position of the turntable 46 with respect to the foundation 44 is made accurate, the positioning of the post-type field operation panel 1 with respect to the foundation 44 becomes easy.

Embodiment 3 FIG. 7 is an exploded perspective view showing a heavy object transporting apparatus according to Embodiment 3 of the present invention. In FIG. 7, the turntable base 47 has a U-shaped planar shape, and a large number of spherical roller bearings 48 having a freely rotating direction are arranged on the upper surface thereof. This turntable base 47 is inserted into a pair of claws 19. The turntable stopper 49 has a spherical roller bearing 4 on its upper surface.
8 are arranged and mounted so as to close the opening of the turntable base 47. The turntable 50 is formed by integrating a pair of U-shaped flat plates 50a with a U-shaped connecting member 50b. The gap between the pair of flat plates 50a is formed to be slightly larger than the thickness of the turntable base 47, and the outer diameter of the connecting member 50b is
7 is formed smaller than the inner diameter of the U-shaped opening. The turntable 50 is inserted from the open end of the turntable base 47 so as to sandwich the turntable base 47 between the pair of flat plates 50a. The other configuration is the same as that of the first embodiment.

Here, the turntable 50 mounted on the turntable base 47 has an upper flat plate 50a received by a number of spherical roller bearings 48, and a connecting member 50b is loosely inserted into the opening of the turntable base 47. Since it is in the fitted state, it can move back and forth, right and left on a plane formed by a large number of spherical roller bearings 48, and can rotate.

[0031] The heavy object transport device 10 constructed as described above.
1 will be described. Note that the basic operation is the same as that of the above-described heavy object transporting apparatus 100, and a description thereof will be omitted. In the transfer device 101, the turntable base 47 is inserted into the claw 19 in the first transfer posture, and the turntable 50 is inserted from the open end of the turntable base 47. Then, the base plate 4 of the post-type site operation panel 1 transported to the site is a pair of feet 12b.
The transport device 101 is set so as to be interposed. And
Operate the nail up / down handle 22 to turn the turntable 50.
Is raised until it hits the bottom surface of the operation box 3. Then, the transfer device 101 is manually pushed and moved while being addressed to the positioning adapter 40 and the fixing adapter 41, and the root side of the claw 19 is moved through the positioning adapter 40, and the front surface of the main body frame 11 is moved through the fixing adapter 41. It is brought into close contact with the side wall surface of the operation box 3. Then, the turntable stopper 49 is attached to the open end of the turntable base 47, and the operation box 3 is fastened and fixed to the base of the claw 19 by the fastening band 42. Further, the claw 19 is raised to lift the post-type on-site operation panel 1 to a predetermined height. Next, after the main body 10 is turned over backward and set to the intermediate position, the operation rope 31 is extended and the transfer device 101 is set to the second transfer position. Then, the transfer device 101 is manually pushed and moved to the vicinity of the target position in the second transfer posture.

When reaching the vicinity of the target position, the operation rope 31 is pulled to bring the transfer device 101 to the intermediate position, and then the main body 10 is erected forward to set the transfer device 101 to the first transfer position. Next, the transfer device 101 is manually pushed and moved to the target position. Therefore, the fastening band 42, the positioning adapter 40 and the fixing adapter 41
Is removed, and the post-type on-site operation panel 1 is pushed by hand to move back and forth, left and right, or rotated by hand, and finely adjusted so that the position and orientation of the post-type on-site operation panel 1 match the base 44. Then, operate the nail up / down handle 22,
The claw 19 is lowered, the post-type on-site operation panel 1 is lowered onto the foundation 44, and the post-type on-site operation panel 1 is fixed to the foundation 44 by the anchor bolt 45. Then, remove the turntable stopper 49, pull out the transfer device 101,
The transport and installation of the post type on-site operation panel 1 are completed.

As described above, according to the third embodiment,
Since the turntable base 47 and the turntable 50 are mounted on the claws 19, the transport device 101 itself has a function of finely adjusting the position and orientation of the post-type field operation panel 1 in the front-rear and left-right directions. Therefore, when the post-type on-site operation panel 1 is installed, the positioning with the base 44 can be extremely easily performed, and a heavy object transfer device that improves workability and work efficiency can be obtained. Further, if the post-type field operation panel 1 is transported using the transport device 101, the positioning operation with the foundation 44 can be performed easily and with less labor, and a transport method with improved workability and work efficiency can be obtained. .

In each of the above-described embodiments, the post-type on-site operation panel 1 has been described as being transported. However, the present invention is not limited to the post-type on-site operation panel 1 but can be applied to other heavy objects. It is not even. In each of the above embodiments, the triple pulley 3 is used as the tilting foot opening / closing means.
Although 0A and 30B and the operation rope 31 are used, a four-wheel pulley or a five-wheel pulley may be used instead of the three-wheel pulley. Further, a hydraulic cylinder, a jack, or the like may be used as the tilting foot opening / closing means.

[0035]

Since the present invention is configured as described above, it has the following effects.

According to the present invention, the foot portion extends forward from the lower end of the main body frame to have an L-shaped side shape,
Attach main wheels to both lower ends of the body frame,
A main body having front wheels mounted on both ends of the front end of the foot, one end of which is supported rotatably about a horizontal axis at an intermediate portion in the vertical direction of the main body frame, and the other end of which is located rearward of the main body frame; And a tilting foot having a rear wheel attached to the other end side, and fixed to the main body frame, wherein the angle of the tilting foot with respect to the main body frame is a first angle and the first angle. An angle regulating plate that regulates a rotation range of the tilting foot around the horizontal axis so as to be between the larger second angle, and a bridge between the main body frame and the tilting foot, A tilting foot opening / closing means for rotating the tilting foot about a horizontal axis, wherein the front wheel and the main wheel are in contact with the ground, and the center of gravity of a heavy object to be transported is located between the front wheel and the main wheel. The first transporting posture and the angle of the tilting foot with respect to the main body are referred to as the second angle. The main wheel and the rear wheel are in contact with each other, and the center of gravity of the heavy object to be conveyed is located between the main wheel and the rear wheel. The first angle is such that the main wheel and the rear wheel are in contact with the ground, and the center of gravity of the heavy object to be conveyed can take three positions: an intermediate position located between the main wheel and the horizontal axis. As a result, a heavy object transfer device that can be stably transferred with a reduced number of support personnel, is safe, and can improve work efficiency is obtained.

The tilting foot opening / closing means includes a pair of multiple pulleys mounted on the body frame and the tilting foot, and one end fixed to one of the pair of multiple pulleys. Since it is composed of an operation rope that is alternately bridged over each pulley of the pair of multiple pulleys and a stopper that regulates the return of the operation rope, it is possible to open and close the inclining foot with a small force, Work load can be reduced.

Further, since the lifter is mounted on the front surface of the main body frame so as to be able to move up and down, a heavy object can be easily conveyed regardless of the concavo-convex shape of the conveyance path or the installation portion.

A turntable base having a U-shaped planar shape, a large number of spherical roller bearings arranged on the upper surface, and being inserted into the lifter claws, and a pair of U-shaped planar shapes The flat plate is connected and integrated integrally by a connecting member, the connecting member is loosely fitted into the opening of the turntable base, and the turntable is sandwiched between the pair of flat plates. Since a turntable mounted on the gantry and a large number of spherical roller bearings are arranged on the upper surface and a turntable stopper mounted so as to close the open end of the turntable gantry, a heavy object is removed. The position and the direction of the heavy object can be adjusted in a state where the heavy object is placed, and the positioning of the heavy object with respect to the installation portion becomes easy.

Also, in the method of transporting a heavy object using the above-described heavy object transport device, the transport device has a first transport position in which a front wheel and a main wheel are in contact with a ground, and the heavy object to be transported is mounted on a main body. The fixing step, the angle of the tilting foot with respect to the main body frame is set to a first angle, the main body is caused to fall backward with the contact point of the main wheel with the road surface as a fulcrum, and the rear wheel is brought into contact with the road surface; Causing the center of gravity of the object to assume an intermediate position between the main wheel and the horizontal axis that is the center of rotation of the tilting foot; and Expanding the tilting foot from the first angle to the second angle to take a second conveyance posture in which the main wheel and the rear wheel are in contact with the ground, and moving the conveyance device to the second conveyance position. A step of manually pushing and moving to a position near the target position in the posture, and The intermediate position in which the inclination foot is opened and closed by closing the inclination foot until the angle of the inclination foot with respect to the main body is changed from the second angle to the first angle, and the main wheel and the rear wheel are grounded. And setting the first transporting posture in which the main body stands upright with the contact point between the main wheel and the road surface as a fulcrum and the front wheel contacts the road surface, and the front wheel and the main wheel contact the ground. And a step of moving the transfer device to the target position in the first transfer position, releasing the fixation of the heavy object and placing the heavy object at the target position. Can be transported,
A method of transporting a heavy object that is safe and improves the working efficiency can be obtained.

Further, in the above-described step of moving the transfer device to the target position in the first transfer posture, releasing the fixing of the heavy object and placing the heavy object at the target position, a large number of bearings are arranged on the upper surface. Place the turntable on the target position, place the heavy object on the turntable, adjust the direction and position of the heavy object, lift the heavy object, pull out the turntable, and move the heavy object to the target position. The positioning work is facilitated.

In the turntable, a large number of the bearings are radially arranged on the upper surface, and the bearings are mounted so that the rotation axis direction of each bearing is directed toward the center of the radial arrangement. When adjusting the position, the center of the heavy object coincides with the center of the turntable, which facilitates the positioning operation.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a heavy object transporting device according to Embodiment 1 of the present invention.

FIG. 2 is a side view showing the heavy object transfer device according to the first embodiment of the present invention.

FIG. 3 is a diagram illustrating a configuration of a tilting foot opening / closing unit applied to the heavy object transporting apparatus according to the first embodiment of the present invention;

FIG. 4 is a side view for explaining the operation of the heavy object transporting apparatus according to Embodiment 1 of the present invention.

FIG. 5 is a diagram illustrating a carrying method using the heavy object carrying device according to the first embodiment of the present invention.

FIG. 6 is a diagram for explaining a method of transporting a heavy object according to the second embodiment of the present invention.

FIG. 7 is an exploded perspective view showing a heavy object transporting apparatus according to Embodiment 3 of the present invention.

FIG. 8 is a perspective view showing a configuration of a post-type field operation panel.

FIG. 9 is a perspective view illustrating an example of a conventional method of transporting a heavy object.

FIG. 10 is a perspective view illustrating another example of a conventional method of transporting heavy objects.

[Explanation of symbols]

1 post type operation panel (heavy load), 10 main body, 11
Main frame, 12 feet, 13 main wheels, 14 front wheels, 16 lifters, 19 pawls, 23 feet for tilting, 24
Pin (horizontal axis), 26 Angle regulating plate, 28 Rear wheel, 30
A, 30B Triple pulley (inclination foot opening / closing means), 30a
Pulley, 30c eccentric roller (stopper), 31 operation rope (tilt opening / closing means), 46 turntable, 4
6a bearing, 47 turntable mount, 48
Spherical roller bearings, 49 turntable stopper, 50 a turntable, 50a flat, 50b connecting member, 100 and 101 weight transfer apparatus, theta ₁ first
Angle, θ ₂ the second angle.

Claims (7)

[Claims] 1. A foot is formed to extend forward from a lower end of a main body frame to form an L-shaped side surface, main wheels are mounted on both lower ends of the main body frame, respectively, and a front wheel is connected to a front end of the foot. A body mounted on both sides, one end of which is rotatably supported about a horizontal axis at a vertical intermediate portion of the main body frame, and the other end of which is extended rearward of the main body frame; And a second angle larger than the first angle, wherein the angle of the angled foot with respect to the main body frame is fixed to the main body frame. An angle regulating plate that regulates a rotation range of the tilting foot around the horizontal axis so as to be between the main frame and the tilting foot,
A tilting foot opening and closing means for rotating the tilting foot about a horizontal axis, wherein the front wheel and the main wheel are in contact with each other, and a center of gravity of a heavy object to be conveyed is located between the front wheel and the main wheel. The main wheel and the rear wheel are in contact with each other, and the center of gravity of the heavy object to be conveyed is the main wheel and the rear wheel. The second located between
And the main wheel and the rear wheel are in contact with each other, and the center of gravity of the heavy object to be conveyed is between the main wheel and the horizontal axis. 3. A heavy object transport device characterized in that it can adopt three postures, namely, an intermediate posture located at a position corresponding to the intermediate position. 2. The tilting foot opening / closing means includes a pair of multiple pulleys mounted on the main body frame and the tilting foot, and one end fixed to one of the pair of multiple pulleys. 2. The heavy object transporting device according to claim 1, further comprising an operation rope alternately wound around each pulley of the pair of multiple pulleys, and a stopper for restricting return of the operation rope. 3. The heavy object transport device according to claim 1, wherein a lifter is attached to the front surface of the main body frame so as to be able to move up and down. 4. A turntable mount having a U-shaped planar shape, a large number of spherical roller bearings arranged on an upper surface thereof, and being inserted into a claw of the lifter, and a pair of U-shaped planar shapes. The flat plate is connected and integrated integrally by a connecting member, the connecting member is loosely fitted into the opening of the turntable base, and the turntable is sandwiched between the pair of flat plates. A turntable mounted on the gantry, and a turntable stopper in which a large number of spherical roller bearings are arranged on the upper surface and mounted so as to close the open end of the turntable gantry are provided. The heavy object transport device according to claim 3. 5. A method for transporting a heavy object using the heavy object transport device according to claim 1, wherein the transport device has a first transport position in which a front wheel and a main wheel are in contact with a ground, and the transported heavy object is Mounting on the main body and fixing; and setting the angle of the tilting foot with respect to the main body frame as a first angle, and turning the main body backward with the point of contact of the main wheel with the road surface as a fulcrum so that the rear wheel is mounted on the road surface. Grounding and taking an intermediate position in which the center of gravity of the heavy object is located between the main wheel and a horizontal axis serving as a rotation center of the tilting foot; The tilting foot is widened until the angle of the main body with respect to the main body is changed from the first angle to the second angle, and the second wheel where the main wheel and the rear wheel are in contact with the ground.
And a step of manually moving the transfer device to the vicinity of the target position in the second transfer posture. The tilting foot opening / closing means causes the tilting foot to be tilted relative to the main body by a second angle. Closing the inclining foot from the angle of the main wheel to the first angle to take the intermediate position where the main wheel and the rear wheel are in contact with the ground, and using the contact point of the main wheel with the road surface as a fulcrum. Erecting the main body to the front to ground the front wheel on the road surface, and adopting a first conveyance posture in which the front wheel and the main wheel are in contact with the ground; and moving the conveyance device to a target position in the first conveyance posture. Releasing the fixing of the heavy object and placing the heavy object at a target position. 6. In the step of moving the transfer device to the target position in the first transfer position, releasing the fixing of the heavy object and placing the heavy object at the target position, a number of bearings are arranged on the upper surface. Place the turntable on the target position, place the heavy object on the turntable, adjust the direction and position of the heavy object, lift the heavy object, pull out the turntable, and move the heavy object to the target position. 6. The method for transporting a heavy object according to claim 5, wherein: 7. The turntable according to claim 1, wherein a number of the bearings are radially arranged on an upper surface, and each of the bearings is mounted so that a rotation axis direction of each bearing is directed toward a radially arranged center. 6. The method for conveying a heavy object according to 6.