JPH0948585A - Stabilizer for lifted cargo in trolley hoist - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stabilizer for lifted cargo in a trolley hoist which can ensure high safety, and labor and space saving during conveyance in 4 long horizontal conveyance passage and a narrow vertical lifting conveyance passage. SOLUTION: This stabilizer is provided with a trolley (b) which is joined to a trolley hoist A suspended on traveling rails C so as to run freely and runs on traveling rails, a rotating mechanism (c) journaled to the trolley so as to rotate freely, and a horizontal balance beam (e) connected to wire 36 elongated from a winding device (d) suspended on the rotating mechanism.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention controls the posture of a suspended load in a trolley hoist installed in a horizontally traveling overhead traveling crane or a horizontal vertical transportation Telha crane to ensure the safety of a transportation route. The present invention relates to a device for stabilizing a suspended load in a trolley hoist configured to measure.

[0002]

2. Description of the Related Art An overhead traveling crane, which is installed on a ceiling and horizontally conveys materials and the like, and a Telha crane, which vertically conveys a hoistway together with horizontal conveyance, are mounted horizontally or vertically with a trolley hoist suspended on the crane. When hoisting a load such as a material and transporting it to a predetermined place, the suspension position from the trolley hoist is transported by hanging a suspension hook on the center of gravity of the suspended load.

Since the suspended load hoisted as described above rotates or inclines during transportation, a rope is attached to one end of the suspended load especially when transporting long rebar or timber. It is hung, and the worker holds the rope and conveys it to a predetermined position while manually adjusting the posture of the suspended load.

[0004]

The suspended load hoisted as described above is rotated during transportation and is regulated by human power in order to prevent inclination of the suspended load. In some cases, the suspended load is transported. Roads and hoistways must be enlarged.
Therefore, there is a problem in that there is a problem from the viewpoint of labor saving for the transportation, labor saving of the hoistway and the like, or smooth transportation of the material on the narrow transportation route.

The present invention has been proposed in view of the above-mentioned problems of the prior art, and an object thereof is to convey a long horizontal conveying path and a vertically narrow narrow hoistway. The purpose is to provide a device for stabilizing the suspended load in the trolley hoist that ensures the safety of the trolley hoist and that enables the transportation with labor saving and space saving without manpower.

[0006]

In order to achieve the above object, a stabilizing device for a suspended load in a trolley hoist according to the present invention is connected to a trolley hoist suspended movably on a traveling rail, and the traveling rail is provided. A trolley that travels on the road, and a rotation mechanism that is rotatably supported by the trolley,
It is composed of a winding device suspended on a rotating mechanism and a horizontal balance beam connected to a wire extended from the winding device.

According to a second aspect of the present invention, the rotating mechanism is fixed to the trolley and has a stopper ring having a pin hole formed therein; a rotary table rotatably supported at the center of the stopper ring; It is composed of a stopper pin mounted on a stopper guide so as to be engageable with and disengageable from the pin hole, and a lever for engaging and disengaging the stopper pin with the pin hole.

According to the invention of claim 3, in the winding device, the wire is wound around the wire winding drum, and the spiral spring extends over the main winding cylinder that drives the winding drum and the pair of sub winding drums. Is wound, and an auxiliary sheave is provided in front of the winding drum. According to the invention of claim 4, the wire is extended from the winding device and the balance beam is hung at the tip of the wire through the horizontal balance beam or the auxiliary sheave.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to the drawings showing preferred embodiments thereof. Fig. 5 and Fig. 6 show the outline of this device. It is an overhead traveling crane that suspends materials such as suspended from the ceiling and conveys materials, and a terha crane that conveys materials horizontally and vertically in hoistways. At the time of transferring the material from the ground to the underground part, an opening Y serving as a transfer port is provided on the floor F, and an ascending / descending beam B vertically suspended from a Telha crane on a traverse girder is passed through the opening Y. The trolley hoist A is transferred to the horizontal traveling rail C provided on the ceiling of the underground part G, and the material is safely transported to a target place.

Reference numeral N denotes a stabilizing device for a suspended load, which is connected to a trolley hoist A which is suspended on the horizontal traveling rail C and travels freely by a connecting rod a through a connecting pin a ', and travels on the traveling rail C. A winding device d is rotatably suspended on the trolley b via a rotating mechanism c. The trolley b travels on a traveling rail C made of I-shaped steel, and is composed of a bracket 1 having a main wheel 2 traveling on the upper surface of the flange, a cam follower 3 sandwiching the lower surface of the flange, and a cam follower 4 sandwiching the outer edge of the flange. (See FIGS. 1 and 2) As shown in FIG. 3, the rotation mechanism c is pivotally supported on the trolley b by a center pin 10, and is pivotally supported by a thrust bush 11 and a thrust washer 12 about the center pin 10. A stopper ring 16 that is configured to rotate the table 13 and in which stop holes 15 are arranged in a row is provided, and a swivel lock that is engaged with and disengaged from the stop holes 15 of the stopper ring 16 restricts rotation.
7. A groove type stopper guide 18 for holding 7 horizontally and a stopper pin 17 that is inserted between the opposing vertical pieces of the stopper guide 18 so as to be retractable and retractable are wound with a compression spring 19 and the stopper pin 17 is operated. The crank 21 is pivotally supported on the revolving table 13 via a pin 23 'so as to be swingable, is pivotally supported by a hinge pin 23 on the rear end of the stopper pin 17, and the crank 21 is operated on one end of the stopper pin 17 to stop the stopper. It is configured by connecting a string 24 that makes the pin 17 appear and disappear.

The winding device d is the turning table 13 described above.
A wire rod 31 is rotatably mounted on a shaft 32 by a wire 36 wound on a bracket 30 which is fixed to the bracket 30, and a horizontal balance beam balance holding device composed of a spiral spring is provided on an extension portion of the shaft 32. .
(See FIGS. 1 and 2) In the spring governor, a main winding cylinder 33 is pivotally supported on a shaft 32, and a pair of sub winding cylinders 34 are provided on the left and right of the main winding cylinder 33. The main winding cylinder 33 is wound around the spiral winding spring 35 wound around the sub winding cylinder 34. FIG. 4A shows a state in which a load is applied to the horizontal balance beam e, the horizontal balance beam e hangs down, and a spiral spring is wound from the main winding drum 33 to the sub winding drum 34. The state e is wound up by the trolley hoist, and the spiral spring is wound around the main winding drum 33 from the sub winding drum 34.

Further, a sheave 37 is provided at a position parallel to the winding drum 31, and a wire 36 is wound around and fixed to the horizontal balance beam e. In the figure, 38 is a stopper. The horizontal balance beam e is connected to the wire 36 via connecting metal fittings 40 for fixing the wire 36 at both ends, and a hanging ring 41 is provided at the upper part of the center and a hanging ring 42 of three points is provided at the lower part.
Is provided.

FIG. 1 shows a state in which a load is placed on the trolley b and the trolley b is traveling on a horizontal traveling rail C, and both the stabilizers N are operating. In this embodiment, the stabilizer N is provided before and after the trolley hoist A, but only one of them may be provided. FIG. 5 shows an example of use of this device, in which a trolley hoist A is suspended on a lifting beam B suspended from a traverse girder (not shown), and a stabilizer N is suspended by being connected to the trolley hoist A. F is a floor, and an opening Y is provided in the floor.

A material j is hung on the horizontal balance beam e, and is hung by wires 36 from both ends of the horizontal balance beam e through sheaves of a stabilizer. As described above, the material j is hung on the horizontal balance beam e, and the wire 36 of the stabilizer N is attached to the horizontal balance beam e.
When the material j is lifted by the trolley hoist A while being locked at both ends of the wire, the wire 36 of the stabilizer N is moved by the urging force of the spiral spring wound around the main winding cylinder 33 as shown in FIG. The wound winding drum 31 is driven to uniformly hold the horizontal balance beam e, and the material j suspended from the horizontal balance beam e is conveyed in parallel with the traveling rail C, and the material j in the conveying path immediately below the horizontal traveling rail is conveyed. Easily transported to the destination.

FIG. 6 shows a case where a long material j is conveyed in the opening Y provided on the floor. The direction of the winding device d is changed by the rotation mechanism of the stabilizer to change the direction of the long side of the opening Y. It is possible to convey by passing through the opening Y toward the diagonal line of. For rotation, when the cord 24 of the rotating mechanism is pulled, the stopper pin 17 of the crank 21 retracts and comes out from the stop hole 15 of the stopper ring 16 and turns table 13.
Since the lock is released, when the swivel table 13 is rotated to loosen the cord 24 when the desired angle is reached, the stopper pin 17 is pushed by the urging force of the compression spring 19 mounted on the stopper pin 17. The swivel table 13 is fixed by engaging with the stop hole 15 of the stopper ring 16.

[0016]

According to the present invention, as described above, the wire is extended from the winding device of the hanging load stabilizer connected to the trolley hoist of the traveling rail and connected to the horizontal balance beam to be hung on the horizontal balance beam. The suspended load is held parallel to the traveling rails in front of and behind the horizontal balance beam by the winding device, preventing the load from shaking, and the suspended load does not rotate or tilt during transport and is transported. Medium, it can be easily transported to the intended place on the transport path directly under the traveling rail without requiring any work by workers.

Further, in the case of vertical transportation, the floor opening can be made small by suspending the load by varying the horizontal balance beam diagonally by the rotating mechanism of the suspended load stabilizing device, thus saving labor. Allows space-saving transportation. According to the invention of claim 2, the rotating mechanism is mounted on the stopper guide so that the rotating table fixed to the trolley and pivotally supported at the center of the stopper ring can freely rotate and can be engaged with and disengaged from the pin hole of the stopper ring. By operating a crank pivotally supported on the rotary table, the stopper pin is retracted from the pin hole to change the rotary table, whereby the winding device rotates.

According to the third aspect of the invention, the wire wound around the wire winding drum is wound around the main winding cylinder and the pair of sub winding cylinders by the horizontal balance beam balance holding device provided in the winding device. Due to the biasing force of the spiral spring, the horizontal balance beam is always kept in tension, and the horizontal balance beam is prevented from swinging or tilting.
According to the invention of claim 4, since the balance beam is hung from the winding device through the auxiliary sheave to the wire tip through the auxiliary sheave, the suspended load hung on the horizontal balance beam can be swiftly aimed at in a stable posture. Can be transported to a place.

[Brief description of drawings]

FIG. 1 is a side view showing an example of a suspended load stabilizing device in a trolley hoist according to the present invention.

FIG. 2 is a sectional view of a main part of FIG.

FIG. 3 shows a rotating mechanism, wherein the right half is a cross-sectional view and the left half is a side view.

FIG. 4 shows a winding state of a spiral spring that holds the balance of a horizontal balance beam, and (a) shows a state in which a spiral spring wound around a main winding cylinder is wound around a pair of sub winding cylinders,
(B) shows a state in which a spiral spring is wound around the main winding drum from the pair of auxiliary winding drums around the pair of auxiliary winding drums.

FIG. 5 is a side view showing a use state of the present invention.

FIG. 6 is a plan view of FIG. 5;

[Explanation of symbols]

 A Trolley hoist B Elevating beam C Horizontal traveling rail F Floor G Underground N Stabilizer for suspended load a Connecting rod a ′ Connecting pin b Trolley c Rotating mechanism d Rolling device e Horizontal balance beam j Material 1 Bracket 2 Main wheel 3 Cam follower 4 cam follower 10 center pin 11 thrust bush 13 swivel table 15 stop hole 16 stopper ring 17 stopper pin 18 stopper guide 19 compression spring 21 crank 23 hinge pin 23 'pin 24 string 30 bracket 31 winding drum 32 shaft 33 main winding body 34 sub winding body 35 Whirlpool spring 36 Wire 37 Sheave 38 Stopper 40 Connecting fitting 41 Suspension ring 42 Suspension ring

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tadahiko Hayashi 3-20-11 Nishi-Ominami, Suginami-ku, Tokyo

Claims (4)

[Claims] 1. A trolley connected to a trolley hoist movably suspended on a traveling rail, traveling on the traveling rail, a rotating mechanism rotatably supported by the trolley, and a winding device suspended by the rotating mechanism. An apparatus for stabilizing a suspended load in a trolley hoist, comprising: a winding device and a horizontal balance beam connected to a wire extended from the winding device. 2. The rotating mechanism is fixed to the trolley and has a stopper ring with a pin hole bored therein, a rotary table rotatably supported at the center of the stopper ring, and a lockable and disengageable with the pin hole. 2. The apparatus for stabilizing a suspended load in a trolley hoist according to claim 1, comprising a stopper pin mounted on the stopper guide as described above, and a lever for engaging and disengaging the stopper pin with the pin hole. 3. The winding device, wherein a wire is wound around a wire winding drum, and an urging spring mounted across a main winding drum and a pair of sub winding drums for driving the drum, and the drum. The stabilizing device for a suspended load in a trolley hoist according to claim 1, further comprising a front auxiliary sheave. 4. The device for stabilizing a suspended load in a trolley hoist according to claim 1, wherein a balance beam is suspended from the winding device by a wire through an auxiliary sheave through the auxiliary sheave.