JP2003128383A - Reversing device for heavy cargo - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reversing device for a heavy cargo, capable of easily and safely performing reversing work for the heavy cargo in a short time. SOLUTION: This reversing device 1 for reversing the heavy cargo 65 comprises a hoisting frame 2, a clamping mechanism 18 having a fixed side attachment 20 and a movable side attachment 28 for clamping the heavy cargo 65, a rotating mechanism 33 having a speed reducer 34 for rotating the heavy cargo 65 put in a clamped state by the clamping mechanism 18, a brake mechanism 39 for the rotating mechanism for preventing the rotating mechanism 33 from running away, and a brake mechanism 44 for the clamping mechanism for preventing the clamping mechanism 18 from running away. The heavy cargo 65 is put in the clamped state by the clamping mechanism 18 and rotated by the rotating mechanism 33 to be reversed, and held in the reversed state by the brake mechanisms 38, 44.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heavy-weight reversing device, and more particularly to a heavy-weight reversing device effective for inspection and maintenance of a cylinder cover of a diesel engine of a ship.

[0002]

2. Description of the Related Art Conventionally, when a diesel engine of a ship such as a freighter or a ferry is disassembled for inspection and maintenance, the cylinder cover removed from the engine is carried into a factory for inspection and maintenance.

In this case, using an overhead crane in the factory,
The four points of the cylinder cover were hung with wires and shackles, and the wires were lifted and lowered two by two to invert the cylinder cover, and each part was cleaned, repaired, and maintained.

[0004]

However, the above-mentioned work of reversing the cylinder cover has the following problems. 1) A crane having the functions of main winding and auxiliary winding is required. 2) At least 3 workers are required for the reversing work. 3) There is a risk that the wire and shackle will move and the fingertips will be caught during the reversing work. 3) Wires, shackles, or cylinder covers are easily damaged. 4) A large factory space is required. 5) A license holder for operating the overhead crane is required. 6) The occupancy time of the overhead crane becomes long, and a waiting time occurs for other work. 7) Since it is necessary to perform an inching operation on the crane, it is easy to cause a contact failure on the starting board.

The present invention has been made in view of the above-mentioned conventional problems, does not require a crane having a main winding function and an auxiliary winding function, and can perform a sufficient reversing work even with a single-point hoist. Since the reversing work can be performed by one or two people, and there is no need to use a wire or a shackle, there is no risk that a fingertip is caught during the reversing work, and a heavy object is not scratched. Since the reversing work can be performed sufficiently even in a narrow space and the hoist can perform the reversing work, a crane operation license holder is not required and the time required for reversing is short,
Crane occupancy time is short, there is almost no waiting time for other work, and since there is no need for inching operation of the crane, there is almost no contact failure on the starter board. It is an object of the present invention to provide an inversion device for an object.

[0006]

The present invention employs the following means in order to solve the above problems. That is, the invention according to claim 1 is a heavy object reversing device for reversing a heavy object, comprising a frame that can be lifted, a clamping mechanism that is provided on the frame and that clamps the heavy object, and the clamping mechanism. And a brake mechanism for preventing the escape of the rotation mechanism and the sandwiching mechanism and for holding the heavy object in a stopped state.
According to the heavy object reversing device of the present invention, the heavy object is sandwiched by the sandwiching mechanism, and in this state, the heavy object is inverted by rotating the heavy object integrally with the sandwiching mechanism by the rotating mechanism, and the rotating mechanism is provided by the brake mechanism. Also, by preventing the pinching mechanism from running away, the heavy object is held in a stopped state.

According to a second aspect of the present invention, there is provided the heavy object reversing device according to the first aspect, wherein the holding mechanism is provided on the frame, and is rotationally driven by the rotating mechanism, and the heavy object is rotated. A fixed-side attachment engageable with one end surface, a movable-side attachment provided on the frame, capable of advancing and retracting in the direction of the fixed-side attachment, and engageable with the other end surface of the heavy object, and the movable attachment. A handle for advancing and retracting the side attachment is provided, and the heavy object is sandwiched between the fixed side attachment and the movable side attachment. According to the heavy weight reversing device of the present invention, the fixed side attachment is engaged with one end surface of the heavy weight, and the handle is operated in this state to move the movable side attachment forward in the direction of the fixed side attachment. By engaging with the other end surface of the heavy object, the heavy object is sandwiched between the fixed-side attachment and the movable-side attachment.

According to a third aspect of the present invention, there is provided the heavy object reversing device according to the second aspect, wherein the one end surface and the other end surface of the heavy object are respectively provided with engaging holes, and the engaging holes are provided in the engaging holes. The fixed side attachment and the movable side attachment are engageable with each other. According to the heavy weight reversing device of the present invention, the fixed-side attachment is engaged in the engagement hole of the one end surface of the heavy article, and the movable-side attachment is engaged in the engagement hole of the other end surface of the heavy article. Thus, the heavy object is sandwiched between the fixed side attachment and the movable side attachment.

A fourth aspect of the present invention is the heavy object reversing device according to the third aspect, wherein a soft plate is provided on at least a part of the peripheral surface of the fixed side attachment and the peripheral surface of the movable side attachment. It is characterized by being According to the heavy weight reversing device of the present invention, when the fixed side attachment is engaged in the engagement hole of the one end surface of the heavy article and the movable side attachment is engaged in the engagement hole of the other end surface, It will be smoothly engaged by the soft plate on the peripheral surface of the attachment.

The invention according to claim 5 is the reversing device for heavy objects according to any one of claims 2 to 4, wherein the rotating mechanism includes a speed reducer having an input shaft and an output shaft, and the input device. A handle attached to the shaft, and the fixed side attachment of the holding mechanism is connected to the output shaft. According to the heavy weight reversing device of the present invention,
When the handle is operated, the input shaft of the reduction gear rotates, the output shaft rotates at a predetermined reduction ratio following the rotation of the input shaft, and the fixed side attachment of the clamping mechanism rotates following the output shaft. The heavy load will rotate through the fixed attachment.

The invention according to claim 6 is the reversing device for heavy objects according to any one of claims 2 to 5, wherein the brake mechanism is a rotation mechanism brake mechanism for preventing the rotation mechanism from running away. And a clamping mechanism brake mechanism for preventing the clamping mechanism from running away. According to the heavy object reversing device of the present invention, the rotation mechanism brake mechanism prevents the rotation mechanism from running away, and the holding mechanism brake mechanism prevents the holding mechanism from running away, so that the heavy object is held in a stopped state. It will be.

The invention according to claim 7 is the reversing device for heavy objects according to any one of claims 1 to 6, wherein the frame has at least two pillars provided to face each other, and an upper end of the pillar. It is characterized by comprising at least one beam installed between the parts, and a lifting part for lifting the frame is provided on the beam. According to the heavy weight reversing device of the present invention, the heavy weight is lifted together with the frame via the lifting portion.

According to an eighth aspect of the present invention, there is provided the heavy object reversing device according to the seventh aspect, wherein the hoisting portion is provided at a central portion of the beam, and the attachment position is adjustable. A hoisting part for hoisting, a hoisting part for hoisting two points provided at both ends of the beam, and a hoisting part for hoisting a forklift provided at both ends of the beam. According to the heavy object reversing device of the present invention, the heavy object is integrally lifted with the frame by the crane through the one-point hoisting unit or the two-point hoisting unit. Further, the heavy load is lifted by the forklift through the lifting portion for lifting the forklift together with the frame.

The invention according to claim 9 is the heavy object reversing device according to any one of claims 1 to 8, wherein the frame is stored, and the frame is supported when the heavy object is reversed. It is characterized in that it is provided with a storage work table that According to the heavy weight reversing device of the present invention, the frame is stored in the storage workbench when not in use, and
When inverted, it is supported by the storage workbench to prevent shaking.

The invention according to claim 10 is based on claims 1 to 9.
The heavy object reversing device according to any one of items 1 to 3, wherein the frame is a square pipe. According to the heavy weight reversing device of the present invention, it is possible to reduce the weight of the frame and ensure a predetermined strength.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 to 7 show an embodiment of the present invention. In FIG. 1, the heavy weight reversing device 1 includes a frame 2, a holding mechanism 18, a rotating mechanism 33, a brake mechanism 38, and a storage workbench 57 shown in FIG. 7.

As shown in FIGS. 1 and 2, the frame 2 has a gate shape, and a pair of columns 3 and 4 facing each other at a predetermined interval and a pair of columns 3 are provided. Beams 7 integrally connected by welding or the like are provided between the upper ends of the beams 4. The beam 7 has a lower beam 10 that is horizontally installed between the upper ends of the pair of columns 3 and 4, and an inverted V-shaped structure in which both ends are integrally connected to both upper end portions of the lower beam 10 by welding or the like. It is composed of an upper beam 8. Various steel materials can be used as the material of the frame 2, but in this embodiment,
Square pipes are used to ensure a certain level of strength and reduce weight.

A long hole 9 is provided at the center of the upper beam 8 so as to penetrate therethrough in the vertical direction, and a lifting portion 11 for hanging a single point is provided at the center of the upper beam 8 through the long hole 9. It has become. The lifting portion 11 for hanging at one point includes an eyebolt 12 that is inserted from above into the elongated hole 9 of the upper beam 8 and a nut 14 that fixes the eyebolt 12 to the elongated hole 9. An annular lifting ring 13 is provided on the head of the eyebolt 12, and the lifting ring 13 is hung on the hook of the crane directly or through a wire or the like. The one-point hoisting unit 11 is movable in the elongated hole 9 and can be fixed at a predetermined position. By adjusting the position of the one-point hoisting unit 11, a heavy object is hoisted. It is possible to adjust the position of the center of gravity when the player touches.

At both ends of the upper beam 8 on the upper surface side, lifting portions 15, 15 for hanging at two points are provided. The lifting portions 15 and 15 for hanging at two points are integrally formed by welding a substantially triangular steel plate having a through hole 16 to both end portions on the upper surface side of the upper beam 8 by welding. When using the lifting parts 15 and 15 for hanging at two points, a wire may be passed between the through holes 16 and 16 and hooked on the hook of the crane.

Square tubular forklift hoisting portions 17, 17 are provided at both ends on the lower surface side of the lower beam 10, and the forklift pawls are inserted into the forklift hoisting portions 17, 17. The frame 2 can be lifted by a forklift.

The holding mechanism 18 includes a fixed side engaging member 19 attached to the lower end of one of the columns 3 via a support base 5,
The movable side engaging member 24 is attached to the lower end of the other pillar 4 via the support base 6.

The fixed side engaging member 19 is an output shaft 3 of a speed reducer 34 of a rotating mechanism 33 which will be described later and is attached to the support base 5.
6, which is integrally attached to the drive shaft 6, and includes a fixed-side attachment 20 that is rotationally driven integrally with the output shaft 36. In this case, the fixed attachment 20 is attached to the output shaft 36 in an eccentric manner.

As shown in FIGS. 1, 3 and 6, the fixed side attachment 20 has a shape whose outer peripheral surface conforms to the shape in an engaging hole (not shown) at one end surface of a heavy object, which will be described later. In the embodiment, a cylindrical engaging portion 21 formed in an octagonal shape, and an opening edge portion of an engaging hole on one end face of the heavy object, which is integrally provided at one end in the axial direction of the engaging portion 21. It is composed of a plate-shaped engaging portion 22 having a diameter larger than that of the engaging portion 21 which is engaged with.

On the outer peripheral surface of the engaging portion 21 of the fixed side attachment 20, every other piece, a soft plate 23 is integrally attached by screws. Examples of the soft plate 23 include those made of a material that easily fits when the engaging portion 21 of the fixed-side attachment 20 is engaged in the engaging hole of the one end face of the heavy object, such as a copper plate and an aluminum plate. The present invention is not limited to this, as long as it has similar properties. The soft plate 23 may be provided on the entire circumference of the fixed side attachment 20.

As shown in FIGS. 1 and 4, the movable side engaging member 24 penetrates the support base 6 in the horizontal direction and has a cylindrical guide guide 25 having an internal thread on the inner peripheral surface thereof, and a guide. A rod-shaped screw shaft 26, which is screwed to the inner peripheral side of the guide 25 and is provided with a male screw on the outer peripheral surface, which is screwed into the female screw of the guide guide 25, and one end portion of the screw shaft 26 in the axial direction. Handle 27 that is integrally attached, and screw shaft 26
And a movable side attachment 28 rotatably attached to the other end of the handle 2 via a bearing 32.
By rotating the screw shaft 26,
The movable side attachment 28 is rotated relative to the horizontal direction, and the movable side attachment 28 is moved forward or backward in the horizontal direction following the rotation of the screw shaft 26.

As shown in FIGS. 1, 4, and 6, the movable attachment 28 has a weight 65 whose outer peripheral surface will be described later.
Of the plate-like engaging portion 29 formed in a shape (octagonal shape in this embodiment) that matches the shape in the engaging hole (not shown) at the other end surface of the engaging portion 29 in the axial direction. A plate-like locking portion 3 that is integrally provided at one end and has a diameter larger than that of the engaging portion 29 that is locked at the opening edge of the engaging hole on the other end surface of the heavy object.
It is composed of 0 and 0.

Every other piece, soft plates 31 are integrally attached to the outer peripheral surface of the engaging portion 29 of the movable side attachment 28 by screws. The soft plate 31 may be made of a material that easily fits when the engaging portion 29 of the movable attachment 28 is engaged in the engaging hole of the other end surface of the heavy object, such as a copper plate or an aluminum plate. The present invention is not limited to this, as long as it has similar properties. The soft plate 31 may be provided on the entire circumference of the movable attachment 28.

As shown in FIGS. 1 and 3, the rotating mechanism 33
Is a reduction gear 34 attached to the support base 5, and a reduction gear 3
4 and the handle 37 attached to the input shaft 35, and the fixed side attachment 20 of the holding mechanism 18 is integrally attached to the output shaft 36 of the reduction gear 34 in an eccentric state. Then, by rotating the handle 37 and the input shaft 35 of the speed reducer 34,
The output shaft 36 rotates at a predetermined reduction ratio (1/50 in this embodiment) following the input shaft 35, and the fixed side attachment 20 of the holding mechanism 18 is integrated with the output shaft 36. Is something that rotates.

As shown in FIGS. 1, 3, 4, and 5,
The braking mechanism 38 locks the handle 37 of the rotating mechanism 33 to prevent the rotating mechanism 33 from running away, and the handle 2 of the holding mechanism 18.
The holding mechanism braking mechanism 44 prevents the holding mechanism 18 from running away by locking the holding mechanism 7.

As shown in FIGS. 3 and 5, the rotation mechanism brake mechanism 39 includes the input shaft 3 of the speed reducer 34 of the rotation mechanism 33.
5, the brake plate 40, which is integrally mounted on the outer peripheral surface 5 and rotates integrally with the input shaft 35, and in which the outer peripheral surface is provided with engaging grooves 41 at predetermined intervals, and the support base 5 on the frame 2 side. A stopper pin 42 that is rotatably attached and is engageable with an arbitrary engaging groove 41 of the brake plate 40, and a lever 43 that rotates the stopper pin 42.
By operating the lever 43 to rotate the stopper pin 42 to engage with the arbitrary engagement groove 41 of the brake plate 40, it is possible to prevent the speed reducer 34 from running away, The fixed-side attachment 20 attached to the output shaft 36 of 34 can be held at a predetermined position in the rotational direction.

As shown in FIGS. 4 and 5, the sandwiching mechanism brake mechanism 44 is integrally attached to the screw shaft 26 of the sandwiching mechanism 18 so as to rotate integrally with the screw shaft 26, and to extend around the outer peripheral surface over the entire circumference. The brake plate 45 is provided with engaging grooves 46 provided at predetermined intervals, and is rotatably provided on the support base 6 on the frame 2 side, and can be engaged with any engaging groove 46 of the brake plate 45. Comprised of a stopper pin 47 and a lever 48 for rotating the stopper pin 47,
By operating the lever 48 to rotate the stopper pin 47 to engage with the arbitrary engaging groove 46 of the brake plate 45, it is possible to prevent the screw shaft 26 from running away, and thus the screw shaft 2 can be prevented.
The movable side attachment 28 attached to the No. 6 can be held at a predetermined horizontal position.

As shown in FIG. 7, the storage workbench 57 comprises a base 58 constructed by assembling square pipes in a cross beam shape, and guide portions 59 which are integrally erected at both ends of the base 58. It is configured. The guide portion 59 has a pair of guide guides 60, 60 provided facing each other at a predetermined interval, and the lower ends of the columns 3, 4 of the frame 2 are inserted between the guide guides 60, 60. The frame 2 can be stored by the above, and the frame 2 can be supported when the heavy object is turned over.

In order to reverse the cylinder cover 65 of the heavy-duty diesel engine of a ship, which is a heavy object, by using the heavy object inverting device 1 according to this embodiment having the above-described structure, the frame 2 is suspended by one point. Lifting part 11
The cylinder cover 65 is lifted by a crane through and is moved horizontally to position the cylinder cover 65 between the pair of columns 3 and 4.

Then, the engaging portion 21 of the fixed side attachment 20 of the holding mechanism 18 is engaged with the engaging hole provided in the one end surface of the cylinder cover 65, and the engaging portion 22 is provided at the peripheral portion of the engaging hole. And the handle 27 of the holding mechanism 18 is rotated to move the movable side attachment 28 forward in the direction of the cylinder cover 65, and the engaging portion 29 of the movable side attachment 28 is inserted into the engaging hole of the other end surface of the cylinder cover 65. To engage the locking portion 30 with the peripheral portion of the engaging hole.

Then, the handle 27 is further rotated to press the movable side attachment 28 toward the cylinder cover 65, and the cylinder cover 65 is sandwiched between the fixed side attachment 20 and the movable side attachment 28 from the horizontal direction. Then, the lever 48 of the holding mechanism brake mechanism 44 is operated to engage the stopper pin 47 into the engagement groove 46 of the brake plate 45, and the movable side attachment 28 is held at a predetermined horizontal position. The cylinder cover 65 is attached between the pair of columns 3 and 4.

Then, the handle 37 of the rotating mechanism 33 is rotated to rotate the input shaft 35 of the speed reducer 34, and the input shaft 3
5, the fixed side attachment 20 of the holding mechanism 18 is rotated integrally with the output shaft 36, the cylinder cover 65 held between the fixed side attachment 20 and the movable side attachment 28 is rotated, and the cylinder cover 6 is rotated.
5 is placed at a predetermined position in the rotation direction.

Then, the lever 43 of the rotation mechanism brake mechanism 39 is operated to move the stopper pin 42 to the brake plate 4.
Fixed side attachment 2
0 is held at a predetermined position in the rotation direction, and the cylinder cover 6
Hold 5 in the inverted state. In this way, the cylinder cover 65 can be inverted.
Then, by repeating the above-mentioned reversing work, each part of the cylinder cover 65 can be inspected and maintained.

In the above description, the cylinder cover 65 is lifted integrally with the frame 2 via the lifting portion 11 for hanging at one point, but the position of the center of gravity is adjusted by the lifting portion 11 for hanging at one point. If you can not
It is also possible to use the lifting portions 15, 15 for hanging at two points. Further, at a place where the crane cannot be used, a lifting portion 17 for a forklift,
17 may be used.

In the heavy-weight reversing device 1 according to this embodiment configured as described above, the cylinder cover 65 is used.
When reversing the cylinder cover 65,
8, the cylinder cover 65 is lifted together with the frame 2, and in this state, the rotation mechanism 33
Therefore, since the cylinder cover 65 may be rotated, it is not necessary to use a wire, a shackle, or the like for reversing the cylinder cover 65. Therefore, the work of reversing the cylinder cover 65 becomes easy and can be done in a short time, so that the work efficiency is significantly improved. Also, slinging work is not required, and slinging license is not required.

Further, when the cylinder cover 65 is inverted, it is sufficient to rotate the handle 37 of the rotating mechanism 33, and since the operation of the handle 37 is sufficient with human power, the cylinder cover 65 can be easily inverted. .

Furthermore, when hoisting the frame 2,
Since one-point hoisting is sufficient, a crane having the functions of main winding and auxiliary winding is unnecessary, and a one-point hoist can suffice. Therefore, an overhead crane license is not required. Moreover, since the reversing work can be performed by one or two persons, the work efficiency can be significantly improved.

Furthermore, since it is not necessary to use a wire or a shackle, there is no danger of the fingertip being caught during the reversing work, and the safety can be improved. Further, the cylinder cover 65 is not damaged.

Further, even in a narrow space, the reversing work can be sufficiently performed, and even in a place where the crane cannot be used (in a ship, which is a narrow space without a crane),
Since it can be turned over by a forklift, it is effective for places where emergency inspection and maintenance are required.

Further, since the time required for reversing is short, the occupation time of the crane is short and the waiting time does not occur for other work.

Further, since the forklift can be used, it can be used not only for the work of reversing the cylinder cover 65 but also for the work of transferring the cylinder cover 65, and the work efficiency is greatly improved.

In this embodiment, according to the shape of the intake side and the exhaust side of the cylinder cover 65, FIG.
The case where the engaging portion 21 of the fixed-side attachment 20 and the engaging portion 29 of the movable-side attachment 28 have the same shape as described above has been described.
The shape may be appropriately formed according to the shape of the intake side and the exhaust side of the cylinder cover 65, and the engaging portions 21 and 29 may have different shapes such as an octagonal shape and a circular shape. Further, in the above embodiment, the cylinder cover 65 of the ship diesel engine is used as the heavy object, but the present invention is not limited to this, and the heavy object reversing device according to the present invention is used for reversing other heavy objects. Of course, the same effect can be obtained in that case as well.

FIG. 8 is a diagram showing another example of the rotation mechanism brake mechanism 39 described in the above embodiment. The rotation mechanism brake mechanism 39 shown in this figure is provided with a handle 37.
Engaging member 49 having an engaging hole 50 provided in the boss of
To connect the stopper pin 51 movably provided in the engagement hole 50 in the direction of the arrow, the grip 54 and the lever 55 attached to the handle 37 via the universal joint 53, and the lever 55 and the stopper pin 51. The wire 56 and the brake plate 57 fixed to the support base 5 side of the frame 2 are provided. Then, by operating the lever 55 in the direction of the arrow, the wire 5
Move the stopper pin 51 in the direction of the arrow via 6,
The stopper pin 51 can be engaged with and disengaged from an engagement groove 58 formed around the brake plate 57.

Also in this structure, by operating the lever 55, the stopper pin 51 is engaged with the engaging groove 58 of the brake plate 57, so that the speed reducer 34 shown in FIG. The fixed attachment 20 attached to the output shaft 36 of the machine 34 can be held in place.

The sandwiching mechanism brake mechanism 44 can also be configured as shown in FIG. 8, although not shown.

[0050]

As described above, according to the invention of claim 1 of the present invention, since a heavy object can be lifted through the frame, an overhead crane having a main winding function and an auxiliary winding function can be provided. It becomes unnecessary, and even a one-point hoist crane can fully perform the reversing work, so that even a small-scale factory can perform sufficient inspection and maintenance of heavy objects. Further, since the slinging work is unnecessary, the slinging license is unnecessary. In addition, 1 inversion work
Since ~ 2 people can perform the work, the work efficiency can be improved. Furthermore, since there is no need to use wires or shackles, there is no danger of pinching a fingertip during reversing work, and safety can be improved. Also, the heavy object is not damaged. further,
This makes it possible to perform the reversing work sufficiently even in a narrow space. Further, since the hoist crane can be used for reversing work, a license holder for an overhead crane is not required. Furthermore, since the time required for reversing work is shortened,
Hoist crane occupancy time is shortened and there is no waiting time for other work.

According to the second, third or fourth aspect of the present invention, the heavy object is attached to the frame by sandwiching the heavy object between the fixed side attachment and the movable side attachment of the holding mechanism. Therefore, it is not necessary to use a wire or a shackle for lifting the heavy object, and the heavy object can be easily and safely lifted in a short time. Further, the soft plate on the peripheral surface of the fixed-side attachment and the soft plate on the peripheral surface of the movable-side attachment prevent scratches or the like on the engagement holes of heavy objects.

Further, according to the invention of claim 5 of the present invention, it is possible to rotate a heavy object easily and safely by human power.

Further, according to the invention of claim 6 of the present invention, since the heavy object does not suddenly move from the inverted state, it is possible to ensure the safety during the inspection and maintenance of the heavy object. Become.

Further, according to the invention of claim 7 of the present invention, since the structure of the frame can be simplified,
Maintenance becomes easy.

According to the eighth aspect of the present invention, the weight is integrated with the frame by using the one-point lifting portion, the two-point lifting portion, or the forklift lifting portion. Since objects can be hoisted, they can be used properly according to the type of heavy objects, and the forklift can enter without being limited to the factory where the crane is installed and inspected. It will be possible to carry out inspection and maintenance even in the place.

Further, according to the invention of claim 9 of the present invention, the frame can be stored in the storage workbench when not in use, and the frame can be supported by the storage workbench during the reversing work. It is possible to prevent the occurrence of shaking during the reversing work, and further improve the safety.

Further, according to the invention of claim 10 of the present invention, since the frame is made of a square pipe, a predetermined strength can be ensured and the weight can be reduced. Even with a small hoist crane, it is possible to fully perform the reversing work of heavy objects.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a heavy weight inverting device according to the present invention.

FIG. 2 is a left side view of FIG.

FIG. 3 is a partially enlarged view of FIG.

FIG. 4 is a partially enlarged view of FIG.

FIG. 5 is an enlarged view of a brake plate.

6 is a sectional view taken along the line AA and a sectional view taken along the line BB of FIG.

FIG. 7 is a side view showing an example of use of a storage workbench.

FIG. 8 is an enlarged view showing another example of the brake mechanism.

[Explanation of symbols]

1 Reversing device 2 frames Three and four pillars 7 beams 11, 15, 17 Lifting section 18 clamping mechanism 20 Fixed side attachment 23, 31 Soft board 27, 37 handle 28 Movable side attachment 33 rotation mechanism 34 reducer 35 input shaft 36 Output shaft 38 Brake mechanism 39 Brake mechanism for rotating mechanism 44 Brake mechanism for clamping mechanism 57 Storage Workbench 65 heavy items (cylinder cover)

Claims (10)

[Claims] 1. A heavy object reversing device for reversing a heavy object, comprising: a frame that can be lifted; a clamping mechanism that is provided on the frame and that clamps the heavy object; and a condition in which the heavy object is clamped. A reversing device for a heavy object, comprising: a rotating mechanism for rotating the heavy object; and a braking mechanism for preventing the rotating mechanism and the sandwiching mechanism from running away and holding the heavy object in a stopped state. 2. The heavy object reversing device according to claim 1, wherein the holding mechanism is provided on the frame,
A fixed-side attachment that is rotatably driven by the rotating mechanism and is engageable with one end surface of the heavy object; and a fixed-side attachment that is provided on the frame and that can move forward and backward in the direction of the fixed-side attachment. A heavy object having a movable side attachment engageable with an end surface and a handle for advancing and retracting the movable side attachment, and sandwiching the heavy object between the fixed side attachment and the movable side attachment. Reversing device. 3. The heavy weight reversing device according to claim 2, wherein engaging holes are provided in one end surface and the other end surface of the heavy object, and the fixed side attachment and the attachment hole are provided in the engaging holes. A heavy weight reversing device, wherein the movable side attachment is engageable. 4. The heavy object reversing device according to claim 3, wherein a soft plate is provided on at least a part of a peripheral surface of the fixed-side attachment and a peripheral surface of the movable-side attachment. Inverter for heavy objects. 5. The heavy object reversing device according to claim 2, wherein the rotating mechanism includes a speed reducer having an input shaft and an output shaft,
A heavy object reversing device, comprising: a handle attached to the input shaft; and a fixed side attachment of the holding mechanism connected to the output shaft. 6. The heavy object reversing device according to claim 2, wherein the brake mechanism is a rotation mechanism brake mechanism that prevents the rotation mechanism from running away, and the pinching mechanism runs away. A reversing device for heavy objects, comprising: 7. The heavy object reversing device according to claim 1, wherein the frame is provided between at least two pillars provided to face each other and an upper end portion of the pillar. An apparatus for reversing a heavy object, comprising at least one beam, and a lifting portion for lifting the frame provided on the beam. 8. The heavy-weight reversing device according to claim 7, wherein the hoisting portion is provided at a central portion of the beam and has a mounting point adjustable for one-point hoisting. A heavy object reversing device, comprising: two-point hoisting portions provided at both ends of the beam, and forklift hoisting portions provided at both ends of the beam. 9. The heavy object reversing device according to claim 1, further comprising a storage workbench that stores the frame and supports the frame when the heavy object is inverted. Inversion device for heavy objects, characterized in that 10. The heavy goods reversing device according to claim 1, wherein the frame is a square pipe.