JPH0789689A - Swing suppressing device for crane - Google Patents

Abstract

PURPOSE:To shift a plate shaped body such as a glass plate having a large area and large weight without generating a swing by allowing a ceiling transfer part which travels horizontally, hoist part for rising and lowering and a suspension part consisting of a bellows shaped pantagraph to move in interlocking, following the rise and lowering of the hoist. CONSTITUTION:A crane 1 is equipped with a ceiling transfer part 4 which horizontally travels on a supporting rail 9 and a hoist part 2 including a hoisting motor 1 installed in the ceiling transfer part 4 and a hoisting drum. Further, the crane 1 is equipped with four wire ropes 8 wound on two pulleys 15 which are axially installed in a bracket 6 having a hoist part 2, free roll for hooking a wire rope, and a hook 7 at the lower end, and a suspension part having the bellows shaped pantagraphs 3 in two row combination, at the front and rear places. The pantagraph 3 is extended and contracted in accordance with the rising/lowering of the hook 7, and the joint shafts 16 and 18 which are formed integrally with the installation parts 13 and 14 are turned by changing the angle between the upper and lower installation parts 13 and 14, and the left and right pantagraphs 3 are moved in a symmetrical form.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is intended to more reliably prevent shakes and the like that occur when a heavy object such as a plate, particularly a glass plate, especially a large-area glass plate, is suspended and transferred. The present invention relates to a steady rest of a crane for transferring a plate-shaped body.

[0002]

2. Description of the Related Art Conventionally, as a transfer device for a large area plate, for example, a so-called large glass plate, a manual or semi-automatic operation is performed by simply combining a hoist crane and a vacuum lift. Also, various transfer devices have been proposed.

For example, Japanese Examined Patent Publication No. 40-14501 discloses a stacking hoist of a glass plate or a plate-like body, and a glass frame is adsorbed by descending a chuck frame having a large number of vacuum chucks from above. Then, the chuck frame lifting device should not operate until the inside of the vacuum chuck reaches a certain degree of vacuum, and after moving the lifting device, the chuck frame is rotated in the required direction to rotate the glass plate diagonally. There is disclosed a stacking device that operates by making full use of several motors and limit switches.

Further, for example, in Japanese Patent Application Laid-Open No. 5-138557 proposed by the applicant of the present invention, a vaccum lift for transferring a plate-like body is described, and an inverter hoist section and a bellows are provided at a ceiling transition section traversing a support rail. -Shaped pantograph is attached to each upper end to form a hanging part, and a vacuum lift main body with a plurality of adsorption / desorption pads is provided on the lower side of this hanging part, and a transitional part attachment point on the upper side of the bellows-shaped pantograph. In addition, on the corresponding same side of the lower side of the Bakuium lift main body mounting location,
Provided with a linear guide that slides by lifting and lowering, engage the pantograph with the main body of the vacuum hoist at a location different from the inverter hoist, and install the load cell between the inverter hoist and the main lift body. With it intervening and hanging,
By providing a control means for controlling the adsorption / desorption of the plate-like body and the drive operation of each part, when the plate-like body such as a large-area glass plate is suspended and transferred, the swing and twist of the main body of the vacuum lift It was disclosed that it was possible to suppress this and that automation was stable and reliable.

[0005]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention As described above, in the case where the hoist crane and the vacuum lift are simply combined, when the glass plate is transferred, a shake or a twist is likely to occur and is unstable, and For example, it is difficult to reliably carry out the traverse stop shift control or the horse control during loading.

Further, for example, in the plate hoist described in Japanese Patent Publication No. 40-14501, a large number of motors are required and the equipment must be large, heavy and complicated. When the glass plate is mounted on the mounting table, for example, rubbing may occur on the lower side of the glass, and minute scratches may appear.

Further, for example, in the vacuum lift for transferring a plate-like body described in Japanese Patent Laid-Open No. 5-138557, the swing and twist are surely improved, and it is more stable and surely prevented from swinging than the conventional one. Although it is possible to perform high control, it may not be said that it is sufficient if it is more reliable and requires significant prevention of shake, and it is not always sufficient when the vacuum lift needs to be replaced. It was difficult to replace easily.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and in which a hoist portion and a bellows-shaped pantograph are provided side by side,
The bellows-shaped pantograph expands and contracts smoothly following the ascent and descent, and prevents the bellows-shaped pantograph itself from swinging and twisting, in particular, preventing swinging of the hook portion of the crane. A plate that enables stable and reliable transfer of large-area, heavy-weight glass plates with high efficiency and safety without causing deterioration of quality such as damage instantly and accurately. It is intended to provide a shake preventing device for a crane for transferring a state body.

That is, the present invention is for transferring a plate-like body comprising a ceiling transition section traversing a support rail, and a suspension section provided with a hoist section attached to the transition section and a bellows-shaped pantograph in combination. In the crane
Locked to both the bellows-shaped pantograph upper mounting portion of the bracket provided in the lower portion of the ceiling transition portion, and the bellows-shaped pantograph lower mounting portion of the bracket that supports the hanging hook and the pulley. Moreover, a steady rest device for a crane, characterized in that a pair of joining shafts having a meshing portion and connecting left and right pantographs are axially supported by a bracket so as to be interlocked in accordance with the elevation of the pantograph. .

Further, in the above-mentioned bellows-shaped pantograph, there is provided each of the above-described anti-sway devices for cranes, wherein a joint shaft is pivotally supported so as to connect both left and right pantographs to an intersection thereof.

Here, as described above, the hoist portion fixed to the transition portion and the bellows-shaped pantograph are combined to form a suspension portion, which is locked to the upper and lower mounting portions of the pantograph, respectively. ,
In addition, the pair of joint shafts are supported by the bracket so as to connect the left and right pantographs with the meshing part. The mechanism for preventing the phenomenon such as twisting is integrally linked, and it is possible to achieve a rigid skeleton shape with a simplified structure to achieve the prevention of the above-mentioned phenomenon, and balance the left and right pantographs. This is because they can be made uniform and the two can work together more smoothly.

Further, the joint shaft is pivotally supported so as to connect the left and right pantographs to the respective intersections of the bellows-shaped pantograph by engaging with the upper and lower mounting portions of the pantograph, respectively, and having a meshing portion. In addition to arranging a pair of joint shafts so as to connect both left and right pantographs, the pantographs that are moved up and down are integrated so that they can be expanded and contracted in a well-balanced manner and instantly with exceptionally uniform movement and smoothness. This is for making the structure more sturdy and making it stronger while following up and down.

[0013]

As described above, the steady rest of the crane according to the present invention is provided with the hoist portion for raising and lowering fixed to the ceiling transition portion and the bellows-shaped pantograph as a suspending portion integrally combined to form the bellows-shaped pantograph. The bellows-shaped pantograph, which is positionally fixed by the upper and lower mounting parts and integrally interlocks to follow up and down by the hoist part, allows the bellows-shaped pantograph to uniformly and smoothly follow the lifting operation by the hoist part. It also forms a skeleton and can prevent the bellows pantograph itself from swinging or twisting during running or movements of each of the above parts, and can prevent unbalance during hanging of the plate, running or landing. Work can be done quickly, reliably and stably with high accuracy without any manifestation, and there is no manifestation of scratches or damage on the plate-like body. It is possible to perform a smooth transfer operation even by hand and it is easy to automate it, and it is possible to perform transfer work with high safety and efficiency, and the device configuration can be relatively simplified. The present invention is a useful anti-vibration device for a crane for plate-like object transfer that can be widely adopted.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below based on the embodiments shown in the drawings. However, the present invention is not limited to the embodiment.

FIG. 1 is an overall perspective view of a crane showing a steady rest of a crane according to the present invention, and FIG. 2 is a partial cutaway showing an upper portion of a steady rest of a crane according to the present invention.
FIG. 3 is a partially cutaway, partially omitted perspective view showing a lower portion of the crane shake prevention device according to the present invention.

[0016] 1 in FIG. 1 is a crane for the plate-like body transfer according to the steady rest of the crane of the present invention, the crane 1 shifts motor 10 the support rails 9 for mounting transfer said plate member And a ceiling transition section 4 which is traversed by the ceiling transition section 4
, A wire rope winding motor 12 installed in the wire rope winding drum, and a hoist portion 2 formed of a wire rope winding drum, a free roll (not shown) for hooking the wire rope and a hook 7 at the lower end.
4 wire ropes 8 that connect two pulleys 15 axially supported in a bracket 6 provided with the
The bellows-shaped pantographs 3 are combined in two rows in a row, and the hanging portions are provided side by side. Further, the bellows-shaped pantograph upper attachment portions 13 of the brackets 5 provided below the ceiling transition portion 4 and the hanging portions. The bracket 6 for supporting the hook 7 for the support and the shaft 15 for supporting the pulley 15 is engaged with bearings 22 on both the bellows-shaped pantograph lower mounting portion 14 and the spur gears 17, 1
A pair of joint shafts 16 and 18 are attached to the brackets 5 and 6 so as to connect the left and right pantographs with the upper and lower engaging portions formed by 9.
FIG. 3 is an overall perspective view of a crane including a steady rest device for a crane that is axially supported and is skeletonized so as to be integrally interlocked with the expansion and contraction of the pantograph by the lifting and lowering operation of the hoist unit 2.

With the above-described structure, the bellows-shaped pantograph 3 expands and contracts in response to the lifting and lowering of the hook 7 by the hoist portion 2, and by this operation, the upper and lower attachment portions 13, 1
The angle of 4 is changed, the joint shafts 16 and 18 integrated with the mounting portions 13 and 14 are rotated, and the spur gears 17 and 19 provided in the central region of the joint shafts are also rotated. The pantograph 3 will move symmetrically vertically and horizontally,
It is stable, reliable and uniform, and can be raised and lowered with a great balance, and it can be skeletonized, and it can contain the shake and twist phenomenon with a relatively simple additional device when moving up and down as well as running. is there.

Further, the joint shaft 21 is pivotally connected to the intersections 20 of the bellows-shaped pantograph 3 so as to connect the left and right pantographs to each other by engaging the upper and lower mounting portions 13 and 14 of the pantograph, respectively. Moreover, in addition to having a pair of joint shafts 16 and 18 pivotally supported so as to connect both left and right pantographs 3 with a meshing portion formed by spur gears 17 and 19, the pantograph by the ascending / descending operation is further provided. 3 is more integrated to be able to expand and contract in a well-balanced manner and to instantly follow up and down with extremely uniform movement and smoothness, while being more skeletonized and tougher.

FIG. 2 is a partially cutaway and a partially enlarged perspective view showing an upper portion of the shake preventing apparatus for a crane for transferring plate-like objects according to the present invention, which is provided below the ceiling transition portion 4. The bracket 5 is engaged with the upper mounting portion 13 of the bellows-shaped pantograph 3 and has a pair of joint shafts 16 supported by bearings 22 provided on the bracket 5 so as to connect both left and right pantographs with a spur gear 17 engaging portion. The bellows-shaped pantograph 3 expands and contracts in response to the lifting and lowering of the hook 7 by the hoist portion 2, whereby the angle of the upper attachment portion 13 changes, and the bellows-shaped pantograph 3 changes. The joint shaft 16 that is integrated rotates, and the spur gear 17 provided in the central region of the joint shaft also rotates, so that the left and right pantographs symmetrically move in the same manner, which is stable and reliable. Balance With the ability to lift, in which the possible containment of rocking or twisting phenomena.

FIG. 3 is a partially cutaway, partially omitted perspective view showing a lower portion of the swing preventing device for a crane for transferring plate-like bodies according to the present invention, which supports a hanging hook 7 and a pulley. The bracket 6 that supports 15 is locked to the lower mounting portion 14 of the bellows-shaped Pandagraph 3, and the spur gear 19
2 shows a state in which a pair of joining shafts 18 are axially supported by bearings 22 provided on the bracket 6 so as to connect both left and right pantographs having a meshing part consisting of the hook 7 formed by the hoist part 2. The bellows-shaped pantograph 3 expands and contracts in response to the up and down movement of the lower mounting portion 14
Of the joint shaft 18 integrated with the mounting portion 14
Is rotated, and the spur gear 19 provided in the central region of the joint shaft is also rotated, so that the left and right pantographs symmetrically move in the same manner, so that it is possible to ascend and descend in a stable, reliable and well-balanced manner. At the same time, it will contain the shake and twist phenomenon.

[0021]

As described above, according to the present invention, a transverse ceiling transition portion, an ascending / descending hoist portion, and a suspending portion made of an integrally framed bellows-shaped pantograph that follows the ascending / descending movement, By locking the upper and lower mounting parts of the pantograph to integrate both left and right pantographs and pivotally supporting the joint shaft having a meshing part, by skillfully deploying the hoist to interlock with it, When a plate-like object, especially a glass plate, especially a large-area or heavy-weight glass plate, etc. is transferred, the crane will not shake or twist and the placement will be stable instantly and reliably. Can be performed with high precision, without causing scratches or damage to the plate-like body, and can perform operations such as moving and placing smoothly even with human hands, and it can handle not only manual operation but also automation, high safety and high efficiency Transfer operation Can also Hakare be simplified apparatus configuration,
(EN) A sway preventing device for a crane for transferring a plate-like object, which can be widely adopted in various places.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a crane showing a steady rest of a crane according to the present invention.

FIG. 2 is a partially cutaway, partially omitted perspective view showing an upper portion of the crane shake preventing device according to the present invention, with the part enlarged.

FIG. 3 is a partially cutaway, partially omitted perspective view showing a lower portion of the anti-sway device for a crane according to the present invention.

[Explanation of Codes] 1 Crane 2 Hoist 3 Bellows Pantograph 5 Bracket 6 Bracket 8 Wire rope 13 Upper mount 14 Lower mount 16 Joining shaft 17 Spur gear 18 Joining shaft 19 Spur gear 20 Crossing 21 Joining shaft

Claims (2)

[Claims] 1. A crane for transferring a plate-shaped body, comprising: a ceiling transition section traversing a support rail; and a suspension section provided with a hoist section attached to the transition section and a bellows-shaped pantograph in combination. Locked to both the bellows-shaped pantograph upper mounting portion of the bracket provided at the lower portion of the ceiling transition portion, and the bellows-shaped pantograph lower mounting portion of the bracket that supports the hanging hook and supports the pulley, Moreover, a steady rest device for a crane, characterized in that a pair of joining shafts having a meshing portion are connected to a bracket so as to connect both left and right pantographs, and are interlocked with each other as the pantograph moves up and down. 2. In the bellows-shaped pantograph,
The steady rest device of a crane according to claim 1, wherein a joint shaft is pivotally supported so as to connect the left and right pantographs to the intersection.