JP3249352B2 - Man trolley equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a man trolley device applied to cranes such as overhead cranes and bridge cranes.

[0002]

2. Description of the Related Art FIG. 3 is an explanatory view of a conventional man trolley device mounted and used on a crane such as an overhead crane and a bridge crane. In the figure, the man trolley device is used for a container crane.
1 is a main girder of the container crane, 02 is a trolley provided so as to traverse the main girder 01 by a rope trolley mechanism or the like, 03 is a cab provided with one end of the trolley 02 fixed at an upper end, and 04 is a cab. A fixed guide sheave for hoisting hoist, which is fixedly disposed at four symmetrical locations on the trolley 02, is a hoisting line. 06 is trolley 02
A lifting tool (container spreader) having four fixed sheaves 07 opposed to the upper fixed guide sheave 04, and a hoisting line 05 is wound from the fixed guide sheave 04 on the trolley 02 to the fixed sheave 07 on the lifting tool 06. It is turned to support the hanging tool 06. A container 08 is hung and supported by the hanger 06.

The horizontal distance from the cab 03 to the hanging gear 06 is always constant. When the operator traverses the trolley 02 and raises / lowers the hanging gear 06, the hanging gear is moved obliquely downward from the inside of the cab 03 as indicated by an arrow 09. The operation is performed while visually checking the position of 06 or the container 08.

[0004]

As described above, in the conventional mantrolley device, the horizontal distance from the operator cab 03 to the hanging device 06 is always constant, and the operator looks at the obliquely downward direction while holding the hanging device 06. An operation for aligning with the container 08 must be performed. For this reason, it is not possible to accurately confirm the mutual horizontal and height shifts between the hanging tool 06 and the container 08, and the hanging tool 06 and the container 08 cannot be checked.
There is a problem that it takes time to perform the alignment operation with Further, the same problem occurs when the hanging tool 06 is not for the container 08 and the suspended load is not the container 08.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems .
The man trolley device as a means, the cab and the hanger in the man trolley device where the trolley hangs the cab and traverses along the main girder of the crane and raises and lowers the hanger through the sheave provided on the trolley the relative length horizontal direction between the that have come to be regulated.

Then , the trolley suspends the cab, traverses along the main girder of the crane, and raises and lowers the suspension through sheaves provided on the trolley. Sheaves are provided to traverse the trolley so that the relative horizontal distance can be adjusted.
When the brake is decelerated to stop the mantrolley device at the target position or after the stop, the operation is performed so that the horizontal relative distance between the driver's cab and the hanger becomes minimum or maximum. As described above, when the operation is performed so that the relative distance between the driver's cab and the hanging device in the horizontal direction is minimized, when the hanging device is lowered to align with the suspended load, or when the hanging device is suspended by the hanging device. When unloading the suspended load to the unloading place and aligning it, the operator can visually observe the lifting device and the suspended load from above in a direction almost perpendicular to the operator's cab. The horizontal deviation from the unloading place can be accurately determined. In addition, when the operation is performed so that the relative distance between the driver's cab and the hanging device in the horizontal direction is maximized, the hanging device can be viewed from the driver's cab at a gentle downward inclination angle, and the hanging device or the hanging device can be hung. The height relationship between the suspended load and the unloading place can be accurately determined. In addition, when the trolley is decelerated and decelerated, the traversable sheave that winds up the hanging tool is sent in synchronization with the swing direction of the hanging tool, and the swing operation due to the inertia of the hanging tool can be suppressed by performing the returning operation. . In addition, the traversable sheave that winds up the hanger is sent in the opposite direction to each side, and the hanger is rotated slightly clockwise or counterclockwise substantially horizontally by returning the sheave to around the vertical axis of the hanger. Can be suppressed.

[0007] Further, the mantrolly device as the second means is the same as the above-mentioned mantrolle device according to the first means,
Further, the trolley suspends the operator's cab, traverses along the main girder of the crane, and raises and lowers the suspenders via sheaves provided on the trolley. The driver's cab is suspended on the trolley so that the target distance can be adjusted. Therefore, on
The following operation is obtained in addition to the operation of the first means.
That is, the operation is performed such that the horizontal relative distance between the driver's cab and the hanger becomes minimum or maximum when the braking is decelerated or stopped after the mantrolley device is stopped at the target position. As described above, when the operation is performed so that the relative distance between the driver's cab and the hanging device in the horizontal direction is minimized, when the hanging device is lowered to align with the suspended load, or when the hanging device is suspended by the hanging device. When unloading the suspended load to the unloading place and aligning it, the operator can visually observe the lifting device and the suspended load from above in a direction almost perpendicular to the operator's cab. The horizontal deviation from the unloading place can be accurately determined. In addition, when the operation is performed so that the relative distance between the driver's cab and the hanging device in the horizontal direction is maximized, the hanging device can be viewed from the driver's cab at a gentle downward inclination angle, and the hanging device or the hanging device can be hung. The height relationship between the suspended load and the unloading place can be accurately determined.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 and 2 are explanatory views of a mantrolley device according to first and second embodiments of the present invention, respectively. In the figure, the man trolley device according to these embodiments is used by being mounted on a crane such as an overhead crane and a bridge crane, and the level and height of a visual hanging device and a suspended load or unloading place. It is easy to grasp the distance relationship in the direction and to perform the positioning.

In FIG. 1, reference numeral 1 denotes a main girder such as an overhead crane or a bridge crane, 2 denotes a trolley provided to engage with a track 1a on the main girder 1 and traverse by a rope trolley mechanism or the like, and 3 denotes a trolley. This is a cab provided with the upper end fixed to one end of the trolley 2. Reference numeral 4 denotes a pair of trajectories provided in a symmetrical position on the trolley 2 in the transverse direction. Reference numeral 5 denotes a drive unit 6 such as an actuator on the trolley 2 which engages with the trajectory 4 to individually set a distance of, for example, about 1 m. A sheave truck 7 is provided so as to be able to reciprocate, and a moving guide sheave for hoisting hoisting which is symmetrically supported two by two on the sheave truck 5. Reference numeral 8 denotes a lifting tool (container spreader) provided with four fixed sheaves 9 corresponding to the moving guide sheave 7 on the trolley 2, and a hoisting rope 10 unreeled from a hoisting device (not shown) on the crane moves the hoisting rope 10 on the trolley 2. It is wound around the fixed sheave 9 on the hanger 8 via the sheave 7 to support the hanger 8. Reference numeral 11 denotes a container (load) suspended and supported by the hanger 8, and 12 denotes the track 4
An opening that is provided therebetween and through which the hoisting rope 10 passes. In this manner, in the present man trolley device, the driver's cab 3 and the hanger 8 are provided on the trolley 2 by the track 4, the sheave trolley 5, the driving device 6 such as an actuator, the moving guide sheave 7, and the like.
Adjustment means for adjusting the relative distance in the transverse direction with respect to.

The two sheave trucks 5 on the trolley 2 reciprocate individually or in synchronization with each other by driving devices 6 such as actuators. Then, by the movement of the two sheave carriages 5, the hanging members 8 supported via the hoisting ropes 10 from the movement guide sheave 7 on the sheave carriage 5 follow and move in the transverse direction. When the movable trolley 5 is moved to a position shown by a solid line on the side away from the cab 3 by a control operation from the inside of the cab 3, the operator moves the trolley 5 from the inside of the cab 3 with a gentle depression from In addition, the moving operation of the hanger 8 can be performed while viewing the hanger 8 or the lower end of the container 11 from a wide field of view. Conversely,
When the moving trolley 5 is moved closer to the cab 3 side and moved to the position shown by the dashed line, the operator lifts the hanging tool 8 or the lower end of the container 11 downward from the inside of the cab 3 at an almost vertical angle. The operation which aligns the tool 8 in the horizontal direction can be performed.

When the operator decelerates the braking to stop the trolley 2 from moving, the operator operates so that the horizontal distance between the operator's cab 3 and the hanger 8 becomes minimum or maximum. In this way, by operating so that the horizontal distance is minimized,
Subsequently, when the hanging tool 8 is lowered to fit the hanging tool 8 to the container 11, or when the container 11 hung by the hanging tool 8 is lowered onto, for example, a trailer chassis, the operator moves upward from the cab 3 in a direction substantially perpendicular to the operator's cab 3. The operator can visually check the hanger 8 and the container 11 from each other, and accurately grasps the horizontal position shift between the hanger 8 and the container 11 and between the container 11 and the unloading place to quickly perform the positioning operation. be able to. Further, by operating the horizontal distance to be the maximum, the operator can accurately grasp the height relationship between the hanger 8 and the container 11 at a gentler depression angle from the cab 3 and quickly move the hanger 8 or the container 11. Can be aligned and lowered. When adjusting the relative distance in the traversing direction between the cab 3 and the hanger 8, the hanger 8 moves in the opposite direction by the same distance in the opposite direction corresponding to the distance of the moving guide sheave 7 for winding up the hanger 8. When the automatic traverse control of the trolley 2 is performed so as to correct the moving distance of the trolley 2,
It is possible to adjust only the relative distance in the transverse direction without changing the moving distance of the hanging tool 8 during the cargo handling operation.

In addition to adjusting the horizontal distance between the driver's cab 3 and the hanger 8, the present trolley also suspends the moving guide sheave 7 for winding up the hanger 8 together with deceleration braking of the trolley 2 traverse. Feed synchronously in the direction of swing of the tool 8,
By performing the returning operation, it can also be used to suppress the swing movement due to the inertia of the hanging tool 8. In addition, the moving guide sheave 7 for lifting the lifting tool 8 is sent in reverse for each side,
By performing the returning operation, the hanging tool 8 can be slightly turned clockwise or counterclockwise horizontally, and the rotation of the hanging tool 8 around the vertical axis can be suppressed by this operation.

In FIG. 2, the man trolley device according to the second embodiment has a means for adjusting the relative distance between the driver's cab 3 and the hanger 8 provided on the side of the trolley 2 which traverses .
The moving guide sheave 7 includes a moving guide sheave 7 similar to that of the first embodiment, a moving mechanism 18 of the cab 3 provided to extend over the projecting portion 2a of the trolley 2 and the lower surface of the body end of the trolley 2. . The operator's cab 3 is supported so as to be able to traverse the trolley 2 via a moving mechanism 18. The moving mechanism 18 of the cab 3 includes a pair of girders 19 fixed in the transverse direction across the overhang portion 2 a of the trolley 2 and the lower surface of the main body of the trolley 2, and a channel-shaped track 20 on the girders 19.
A suspension type roller 21 which supports the upper end of the cab 3 so as to be movable in the transverse direction, and a front and rear portion of the cab 3 which are wound around a driving drum 22 provided on the spar 19 and have both ends passed through a plurality of guide sheaves 23. It is constituted by a wire rope 24 for moving the cab 3 which is connected endlessly to the side. At both ends of the channel-shaped track 20, stoppers (not shown) for limiting the moving distance of the cab 3 are provided. The movement mechanism 18 of the cab 3 may be arbitrarily configured in addition to the above.

This embodiment is an addition to the first embodiment.
According to the moving mechanism 18 of the cab 3, if the driving drum 22 is driven counterclockwise, the cab 3 moves in a direction approaching the trolley 2 as indicated by an arrow 25,
At the position shown by the solid line, it stops by engaging with the stopper. Conversely, when the drive drum 22 is driven clockwise, the cab 3
Moves in the direction away from the trolley 2 as shown by the arrow 26, and engages with the stopper at the position shown by the chain line to stop. Since the pair of girders 19 is provided so as to straddle the overhanging portion 2a of the trolley 2 and the lower surface of the main body of the trolley 2, the cab 3 can hold the lifting gear 8 within a range that does not interfere with the hoisting rope 10.
Side, and the relative distance between the driver's cab 3 and the hanger 8 is minimized at the solid line position moved closer to the trolley 2 side, and the front end of the hanger 8 is closer to vertical. The horizontal positional relationship between the hanging member 8 and the container 11 can be accurately grasped visually from the visual field, and the positioning can be easily performed. Conversely, also when the operator's cab 3 is retracted to the position shown by the chain line, the length between the spar 19 and the rear side of the track 20 can be set to be large freely. The horizontal distance between the driver's cab 3 and the hanging device 8 is set to be sufficiently large, so that the field of view from the driver's cab 3 can be widened and driving can be performed safely. By visually observing at a gentle depression angle, the height relationship with the container 11 or the unloading place can be accurately grasped, and the lifting or unloading can be performed promptly.
You.

[0015]

In the mantrolling device according to the present embodiment ,
The moving guide sheave 7 on the trolley 2 traversing as described above
And the moving mechanism 18 of the operator's cab 3, the relative movement between the operator's cab 3 and the hanger 8 by both the movement of the moving guide sheave 7 on the trolley 2 side and the movement of the operator's cab 3 side. The distance can be adjusted, and both are used to adjust the relative distance. When the operator's cab 3 and the hanger 8 are brought close to each other, the front end of the hanger 8 is visually observed in a more vertical view than in the case of the first embodiment, and the hanger 8 and the container 1 are viewed.
It is possible to easily grasp the horizontal relationship with the position No. 1 and perform positioning. Conversely, when the operator's cab 3 and the lifting gear 8 are separated,
Now maintain a more sufficient distance than in the first Ichikatachi status of implementation, visually with looser depression angle the hanger 8 from the cab 3, grasp the height relationship between the container 11 or unloading location And alignment can be performed easily. Further, by operating the moving mechanism 18 of the cab 3 while independently using the movement guide sheave 7 on the trolley 2 side to stop the hanging tool 8 when stopping the traverse movement braking, the cab 3 can be operated.
It can also be used to adjust the relative distance between the trolley and the hanger 8, and the utility value of the mantrolley device can be increased. Incidentally, it is possible to obtain the same operation and effects as the first Ichikatachi status of implementation to the outer.

In the conventional man trolley device, the horizontal distance from the driver's cab to the hanging device is always constant, and the operator has to perform an operation of aligning the hanging device with the container while observing obliquely downward. For this reason, it is not possible to accurately confirm the mutual horizontal and vertical displacements of the hanging tool and the container, and there is a problem that it takes a long time to perform the positioning operation of the hanging tool and the container. In addition, there is a similar problem when the hanging tool is not used for a container and the suspended load is not a container. However, the mantrolling device according to each of the above-described embodiments solves such a problem and visually suspends the object. ingredients 8 and container 11 or for the grasping and positioning of the horizontal and height relationship between the unloading place can be easily carried out, overhead crane, the trolley 2 for transverse in such bridge crane horizontal line capable suspended A moving guide sheave 7 for winding up the tool 8; and a means for adjusting a relative distance in the traverse direction between the cab 3 and the hanging tool 8; A cab 3 provided with means for adjusting the relative distance in the direction fixed to the trolley 2 and a hanger 8 provided on the trolley 2 so as to be able to reciprocate in the same transverse direction by a driving device 6 such as an actuator.
A driving guide sheave, which is constituted by a lifting guide sheave or a means for adjusting a relative distance in the transverse direction between the operator's cab 3 and the hanger 8, is provided on the trolley 2 so as to be able to reciprocate in the transverse direction. If, constitute Ri by <br/> to the movement guide sheave 7 for winding suspender 8 provided so as to be reciprocated by the driving device 6 such as an actuator in the same direction in the horizontal row direction provided on the trolley 2 The relative distance in the horizontal direction between the driver's cab 3 and the hanger 8 is minimized or maximized when braking or decelerating the mantrolley device configured as described above to stop at the target position or after the braking. To operate. When the operation is performed such that the relative distance in the horizontal direction is minimized, the hanger 8 is lowered to align with the container 11, or the container 11 hung by the hanger 8 is lowered to a trailer chassis or the like. When making the alignment, the operator places the hanger 8 and the container 1 from above in a direction almost perpendicular to the operator's cab 3.
1 can be visually checked, and the positional deviation between the hanger 8 and the container 11 and between the container 11 and the unloading location in the horizontal direction can be accurately determined, and the positioning operation can be performed promptly. be able to. Further, when the operation is performed such that the relative distance between the driver's cab 3 and the hanger 8 in the horizontal direction is maximized, the hanger 8 can be visually observed from the driver's cab 3 at a more gentle downward inclination angle. The height relationship between the container 8 or the container 11 hung on the hanger 8 and the unloading place of the container 11 can be accurately determined, and the position can be promptly aligned and unloaded. Moreover, since with a movement guide sheaves 7 of the cab 3 and the hanger 8 and the horizontal direction of the relative distance adjusting means as trolley for hoisting attachment 8 hoist movable 2 to transverse direction over, the man trolley device In addition to the above-described adjustment of the horizontal distance between the cab 3 and the hanger 8, the moving guide sheave 7 for winding up the hanger 8 is synchronized with the swing direction of the hanger 8 together with the deceleration braking of the trolley 2, for example. By performing the feed and return operations, there is an advantage that it can be used to control the swing motion of the hanging tool 8 due to inertia. In addition, the moving guide sheave 7 for lifting the hoisting device 8 is reversely sent to each side, and the returning operation is performed.
Can be slightly rotated clockwise or counterclockwise horizontally, and by this operation, rotation of the hanging tool 8 around the vertical axis can be suppressed. When the cab 3 is configured to be movable in the transverse direction with respect to the trolley 2 as a means for adjusting the relative distance in the horizontal direction between the cab 3 and the hanger 8, the moving guide sheave 7 is used. In addition to the function and effect, the moving mechanism 18 of the cab 3 can be configured so as to straddle the lower surface of the overhang portion 2a of the trolley 2 and the lower surface of the main body of the trolley 2 so that the cab 3 can be positioned closer to the suspender 8. , So that the hanging member 8 can be visually observed in a direction more nearly vertical, and the position in the horizontal direction can be easily grasped and aligned. In addition, the viewing angle of the hanger 8 is set to a gentle downward slope by providing a retreat distance with a large water stroke in the opposite direction, so that the position in the height direction can be easily grasped and aligned.

[0018]

As described above, the man trolley device according to the present invention is constructed as described above, and when the operation is performed so that the relative distance between the driver's cab and the hanger is minimized, the hanger is lowered. When aligning the suspended load with the hanging equipment, or when lowering the suspended load suspended by the lifting equipment to the unloading place and performing the alignment, the operator shall use the lifting equipment And it is possible to accurately determine the horizontal displacement between the lifting gear and the suspended load or between the suspended load and the unloading location. can do. In addition, when the operation is performed so that the relative distance between the driver's cab and the hanging device in the horizontal direction is maximized, the hanging device can be viewed from the driver's cab at a gentle downward inclination angle, and the hanging device or the hanging device can be hung. Since the height relationship between the suspended load and the unloading place can be accurately determined, the positioning operation can be promptly performed and the unloading can be performed. Also, hang the lifting gear when slowing down the trolley.
Lifting traversable sheaves are sent in synchronization with the swing direction of the lifting gear
The swinging motion caused by the inertia of the lifting gear
Can be suppressed. In addition, rolling up hoisting equipment
Sends possible sheaves in opposite directions on each side and returns
To slightly turn clockwise or counterclockwise
To suppress the rotation of the lifting gear around the vertical axis.
Can be.

[Brief description of the drawings]

FIG. 1 (a) is a front view of a mantrolley device according to a first embodiment of the present invention, and FIG. 1 (b) is a plan view.

FIG. 2 is a front view of a mantrolley device according to a second embodiment of the present invention.

FIG. 3 is a front view of a conventional mantrolling device.
You.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Main girder of crane 1a Track on main girder 2 Trolley for traverse 2a Overhanging part of trolley 3 Operator's cab 4 Track on trolley 5 Sheave trolley 6 Actuator and other driving device 7 Moving guide sheave 8 Lifting device (container spreader) 9 fixed sheave 10 hoisting ropes 11 containers on the load block (load) 12 opening 1 8 cab of the moving mechanism 19 digits 20 channel-shaped track 21縣吊formula roller 22 driving the drum 23 guide wire rope sheave 24 cab for movement

────────────────────────────────────────────────── ─── Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B66C 11/02-11/06

Claims (2)

(57) [Claims] 1. A man trolley device in which a trolley suspends an operator's cab, traverses along a main girder of a crane, and raises and lowers a suspender via a sheave provided on the trolley. As a means for adjusting the horizontal relative distance between the trolley and the trolley.
A man trolley device comprising the above sheave . 2. The trolley further includes means for adjusting a horizontal relative distance between the cab and the hanging device.
The man trolley device according to claim 1, further comprising the operator cab suspended so as to be able to traverse the vehicle.