JPH06183682A - Hoisting accessory for carrying ring-shaped member such a tire - Google Patents

Abstract

PURPOSE:To carry a unit of a plurality of ring-shaped members by arranging a pair of openable/closable arms of inversed-L shape in a horizontally openable/closable manner on a hoisting frame part, and providing a fork part to be engaged with the inner circumferential part of the ring-shaped member such as horizontally-piled tires on the lower end part of this openable/closable arms. CONSTITUTION:When a hoisting accessory 1 carries nothing, a tire upper surface contacting part 14 supported by a mounting shaft 12 through a supporting mechanism is in the position of the lower end of the mounting shaft 12, and when the hoisting accessory 1 is lowered on the tire 10, and the contacting part 14 is brought into contact with the uppermost surface of the tire 10, the contacting part 14 is slid relatively upward along the mounting shaft 12 as the hoisting accessory 1 is lowered. When a floor contacting part 13 reached the floor, the winding-down of a winding-up hook 2 is stopped, and switched to the winding-up, and the hoisting frame 3 is relatively elevated. The length between the contacting part 14 and the lower horizontal openable/closable arm 8 is kept constant, the horizontal openable/closable arms 8, 8 are opened by their own gravity by the action of the links 4-7 until being brought into contact with the inner circumference of the tire 10, and the fork part 11 is engaged with the inner surface of the tire, leading to the condition where the tires can be carried.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hanger for conveying a ring-shaped member such as a tire.

[0002]

2. Description of the Related Art In a distribution center, a material center, or the like that stores a large number of automobile tires, tire types are generally
They are grouped by size and stored in a dedicated rack or stacked on the floor. In addition, when transporting tires between the loading / unloading conveyor or transport vehicle and the storage location, an operator pushes the tires onto the floor surface to move them, and for horizontal stacking, the individual tires are manually lifted or hoisted. Are stacking.

[0003]

Therefore, when loading or unloading a large number of tires, or when the loading and unloading work is congested, it takes a long time to load and unload the tires from the storage location, and a lot of work is required. Even if people are operating, they cannot respond quickly and improvements are desired. However, even if, for example, a plurality of tires are stored in a pallet or a dedicated rack, loaded and unloaded, and transported by hoist, one tire is still required for each pallet assortment and tire loading and unloading. It is not possible to eliminate the work of using the human hand or the hoist of rack unit transportation.

In view of the above conventional state, the present invention has been proposed for the purpose of automatically transporting a plurality of ring-shaped members such as tires stacked horizontally in a bare unit.

[0005]

To achieve this object, in the present invention, a suspension frame supported by a hoisting hook and a pair of inverted L-shapes mounted and supported on the suspension frame portion so as to be horizontally openable and closable. A gravitational opening / closing arm, a fork portion which is attached to the lower end of the opening / closing arm in a semicircular shape and is attached laterally to the inner peripheral portion of a ring-shaped member, and the suspension frame portion. From the side through the center of the opening / closing arm, a floor contact portion provided at the lower end of a mounting shaft and a contact portion with the upper surface of the ring-shaped member mounted at the upper portion of the mounting shaft so that the height position can be adjusted. Characterize.

[0006]

The lifting device is inserted from the top into the hole of the ring-shaped members that are horizontally stacked with the open / close arm closed. With a length of 5 open / close arms depending on the member size,
When the opening / closing arm is inserted into the five ring-shaped members stacked horizontally on the floor, the floor contact portion at the lower end of the attachment shaft of the lifting tool hits the floor, the opening / closing arm is opened and moved, and the fork portion at the lower end of the arm is moved to the maximum position. Engages with the inner peripheral portion of the lower member, and the five ring-shaped members are hoisted together in a bare state by hoisting the hoisting tool.

Further, when inserting the opening / closing arm of the lifting tool into the ring-shaped member having five or more layers stacked on the floor, the contact portion of the mounting shaft contacts the upper surface of the uppermost ring-shaped member to stop the lifting of the lifting tool. In this state, the opening / closing arm opens and moves, the fork portion is inserted into the inner peripheral portion of the fifth ring-shaped member from the top, and the five ring-shaped members are likewise collectively lifted by the hoisting device.

The ring-shaped member release of the hanger means that when the hanger hung from the ring-shaped member is dropped on the floor surface or the ring-shaped member that is already laid on the floor, the floor contact portion contacts or hits the floor, respectively. The part contacts the upper surface of the ring-shaped member, the opening / closing arm is closed and moved, and the fork part retracts to release the tire. Opening and closing of the open / close arm is done by gravity without power.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 and FIG. 2 are front views showing an embodiment in which a suspender according to the present invention is horizontally opened and closed in a closed and opened state.
In the figure, a suspension tool 1 includes a suspension frame 3 suspended from a hoisting hook 2 such as an overhead crane or a hoist (not shown), and the suspension frame 3
A movable frame 6 vertically movably supported by links 4 and 5, and a pair of inverted L-shaped horizontal opening / closing arms 8 and 8 supported by the end of the link 5 and another link 7 below the movable frame 6; An arm open / close switching unit 9 which engages with each other at the central portions of the hanging frame 3 and the movable frame 6 so as to be able to extend and contract with each other, and a vertically extending lower end of the horizontal open / close arm 8, which is attached in a semicircular shape and is horizontally placed. Tire 10
From the fork portion 11 provided so as to be engaged with and supported by the air filling portion from the inner peripheral side, and from the suspension frame 3 side (from the movable frame 6 in the figure)
A floor contact portion 13 fixed to the lower end of a vertical mounting shaft 12 extending through the center of the horizontal opening / closing arms 8 and a tire upper surface contact portion 14 mounted above the mounting shaft 12 so that the height position can be adjusted. Prepare In the figure, reference numeral 15 indicates a floor such as a storage space where the tire 10 is placed horizontally.

FIG. 3 is a side view under the state of FIG. The horizontal opening / closing arm 8 has a vertical portion 8b extending below the semi-cylindrical cross section facing the inner end of a horizontal portion 8a connected to and supported by the ends of the links 5 and 7, and is stretched in a semicircular shape at the lower end. Attach the fork part 11 to be put out.

As shown in FIG. 4, the fork portion 11 has a large diameter tire 10 with the horizontal opening / closing arms 8 and 8 opened.
a, the tire 10b having a small diameter has a fork surface indicated by the hatched portions of the fork portions 11a and 11b.
Support weight. A large fork 11 can be attached and used when carrying a large-diameter tire. Further, in FIG. 3, the mounting shaft 1 extending from the movable frame 6
2 passes through the center of the arm vertical portion 8b, and the tire upper surface contact portion 14 is supported by the mounting shaft 12 via a support mechanism 16.

In FIGS. 5 and 6, the mounting shaft 12 extends vertically at a position between the arm vertical portions 8b and 8b, which is closer to one side by the axial radius, and supports the support mechanism 16 of the tire upper surface contact portion 14.
Is a boss portion 17 that fits vertically and slidably with the mounting shaft 12.
A support plate 18 extending along the vertical plane extending symmetrically from the boss portion 17 on both sides, and brackets 20 and 21 fixed to both ends of the support plate 18 and held in a linear position via rods 19.
Then, the boss 17 and the bracket 21 are inserted into the horizontal holes of the boss 17 and the bracket 21 in parallel with the support plate 18 and the rod 19, and the mounting shaft 12 is provided with the inclined surface at the tip.
A frictional coupling shaft 22 which is detachably and pressure-welded to the peripheral surface, a Y-shaped link 23 in which one end is pin-connected to the other end of the frictional coupling shaft 22, the bracket 20, and the tire upper surface abutting portion 14 and the other ends are pin-connected to each other, 24, 25 and the pin 26 of the support plate 18
And the support plate 18 to support the tire upper surface abutting portion 14 on the long hole eye plate 27 on the tire upper surface abutting portion 14.
And a flange-shaped stopper 29 which is fixed to the mounting shaft 12 at an arbitrary height above the boss portion 17 with a screw 28.

When the hoisting tool 1 is empty, the support mechanism 16 is lowered to the lower end position of the vertical mounting shaft 12 by its own weight and is located at the lower end position. When only 14 is in contact with the uppermost surface of the tire 10, the links 23, 24 and 25 slide upward on the mounting shaft 12 together with the tire upper surface abutting portion 14 while maintaining the Y shape of FIG. When the upper end comes into contact with the stopper 29 and does not rise, only the tire upper surface abutting portion 14 is relatively pushed up by the tire upper surface due to the lowering of the lifting tool, so that the links 23, 24, 25 are pushed up in a T-shape, thereby causing friction. The connecting shaft 22 is pushed into the boss portion 17 and the tip thereof is frictionally connected to the mounting shaft 12, so that the mounting shaft 12 and the tire upper surface contact portion 14
Has a fixed relationship.

In this state, as shown in FIGS. 1 to 2, when the hoisting hook 2 relatively raises the suspension frame 3, the horizontal opening / closing arms 8 and 8 below the tire upper surface contact portion 14 are kept constant in length. The horizontal opening / closing arms 8 and 8 are opened by their own weight including the movable frame 6 by the operation of the links 4, 5 and 7 while being laid down, and the horizontal surfaces of the horizontal opening / closing arms 8 and 8 are in contact with the inner periphery of the tire 10 while the vertical outer surfaces thereof are in contact with the inner circumference. For example, the fifth tire 10 from the top of the stacked tires 10
The fork portion 11 can be inserted into and engaged with the air filling portion of.

FIG. 7 is a side cross section of FIG. The vertical mounting shaft 12 is cranked in the horizontal opening / closing arms 8 toward the one side by the radius of the shaft, and the upper end and the lower end are kept at the center of the hanger 1. In FIGS. 6 and 7, 31 is a guide arm for engaging one opening / closing arm 8 with a roller 32 from above the boss 17 for holding the relative position between the boss 17 and the horizontal opening / closing arms 8, 8. Is a rubber lining covering the outer surface of the vertical portion 8b of the horizontal opening / closing arm 8.

FIG. 8 is a vertical cross section of an embodiment of the arm open / close switching unit 9 in the state of FIG. The open / close switching unit 9 includes the suspension frame 3
The inner cylinder 35, the outer cylinder 36 facing downward and the movable frame 6
The upward inner cylinder 37 and the outer cylinder 38 fixed to the side have a structure in which they are telescopically inserted into each other.
A lock plate 41, one end of which is supported by a pin 40 on the inner vertical wall 39 and whose upper side is freely rotatable to the left and right, and an opening 4 provided in the wall of the inner cylinder 35 in accordance with the tip position of the lock plate 41.
2, the link piece 44 whose one end is connected to the abdomen of the lock plate 41 by the pin 43, and the link piece 44 is pushed up by the bottom plate of the movable frame 6 side inner and outer cylinders 37, 38 along the guide 45 on the vertical wall 39. A cam 46 and a movable frame 6 side inner cylinder 3 for pushing up and alternately inverting the lock plate 41 to the opposite side.
A stopper 47 provided so as to engage with a protruding end of the lock plate 41 from the opening 42 is provided at the upper end of the lock plate 41.

In FIG. 7, the stopper 47 has the lock plate 4
1, the movable frame 6 is fixed to and supported by the suspension frame 3 at this height, and the suspension 1 is kept in the closed state of the horizontal opening / closing arms 8 and 8 in FIG. In this state, the empty hoisting tool 1 descends onto the five tires 10 which are stacked horizontally, the horizontal opening / closing arms 8 and 8 are inserted into the holes of the tire 10, and the floor contact portion 13 is landed on the floor 15 and is lifted. When pushed in, the lock plate 41 is inverted, the stopper 47 is released, and the movable frame 6 can be lowered freely.

When the lowering of the hoisting hook 2 is stopped by the landing of the floor contact portion 13 and then the hoisting hook 2 is switched to hoisting, the horizontal opening / closing arms 8 and 8 have the tire upper surface contact portion 14 and the tire 10 respectively.
The horizontal opening / closing arms 8 and 8 are driven to open by their own weight by contacting the uppermost surface and only the suspension frame 3 is relatively elevated by a certain distance, and the fork portion 11 is wound into the air filling portion of the tire 10 to be in the state of FIG. Be lifted up. The weight of the tire 10 acts as a force in the opening direction of the horizontal opening / closing arms 8 to prevent the tire 10 from falling off.

On the other hand, the empty hoisting tool 1 descends onto five or more tires 10 of the same size which are stacked side by side,
When the horizontal opening / closing arms 8 and 8 are inserted into the holes of the tires, the tire upper surface abutting portion 14 on the tire upper surface abuts on the uppermost surface of the tire 10 before the floor abutting portion 13 abuts on the upper surface of the tire 10. Is fixed to the boss portion 17 and the vertical mounting shaft 12, and the movable frame 6 is relatively raised, whereby the lock plate 41 of the arm opening / closing switching portion 9 is inverted, and the movable frame 6 can be freely lowered, and the hanging frame is lifted. Similarly, in the winding operation of 3, the top five tires 10 are supported by the fork portion 11 and lifted.

When the tire 10 that has been lifted and transported is lowered at a predetermined descending position onto a floor, a bed, or another tire,
Either the floor contact portion 13 or the tire upper surface contact portion 14 is the floor 1
When the movable frame 6 is lifted with respect to the suspension frame 3 by being pushed up by the tire 5 or another tire 10, the lock plate 41 of the arm open / close switching unit 9 is switched to the stopper 47 side, and the horizontal open / close arm is opened as shown in FIG. 8, 8 can be moved to the closed position and locked in the closed state, and the hanger 1 can be extracted upward from the tire 10 and returned to the next tire transport.

According to such an apparatus, since a plurality of tires 10 which are stored in a pile can be conveyed by a mechanical force by remote control in a unit, a conventional manual conveyance work becomes unnecessary, and a tire can be quickly inserted. This has the effect of enabling shipment and transportation.

[0022]

As described above, in short, the present invention comprises a suspension frame supported by a hoisting hook such as a crane or a hoist, and a pair of inverted L-shaped gravity-type opening / closing arms mounted on the suspension frame so as to be horizontally openable / closable. A fork portion which is attached to the lower end of the opening / closing arm in a semicircular shape outwardly and is fitted and supported by an inner peripheral portion of a ring-shaped member such as a tire that is laterally placed, and from the suspension frame portion side. By providing the floor contact portion provided at the lower end of the mounting shaft extending through the center of the opening / closing arm and the contact portion with the upper surface of the ring-shaped member mounted at the upper portion of the mounting shaft so that the height position can be adjusted, It is a non-powered mechanism of gravity opening and closing type, and it has an effect to provide a lifting device that can quickly transfer and receive ring-shaped members such as horizontally placed tires by remote control in units of several units. Be beneficial.

[Brief description of drawings]

FIG. 1 is a front view showing a suspender according to an embodiment of the present invention in a closed state.

FIG. 2 is a front view showing the lifting tool according to the embodiment of the present invention in an open state.

FIG. 3 is a side view taken along the line III-III in FIG.

FIG. 4 is an explanatory view of a plane along line IV-IV in FIG.

5 is an explanatory view showing an enlarged main part of FIG.

6 is a plan view taken along line VI-VI of FIG.

FIG. 7 is a side view taken along the line VII-VII in FIG.

8 is a vertical cross-sectional view showing a configuration example of an arm open / close switching unit in FIG.

[Explanation of symbols]

 1 Lifting Tool 2 Winding Hook 3 Hanging Frame 4, 5, 7 Link 6 Movable Frame 8, 8 Horizontal Opening / Closing Arm 9 Arm Opening / Closing Switching Part 10 Tire 11 Fork Part 12 Vertical Mounting Axis 13 Floor Contact Part 14 Tire Top Contact Part

Claims (1)

[Claims] 1. A hanging frame supported by a hoisting hook, a pair of inverted L-shaped gravity-type opening and closing arms mounted and supported on the hanging frame so as to be horizontally openable and closable, and a semicircle outward at the lower end of the opening and closing arm. Provided on the lower end of a mounting shaft extending from the suspension frame side through the center of the opening / closing arm, and a fork part that is mounted so as to extend like a ring and is engaged with and supported by the inner peripheral part of a horizontally placed ring-shaped member. A lifting device for transporting a ring-shaped member such as a tire, comprising: a floor contact part and a contact part with an upper surface of the ring-shaped member mounted at an upper part of the mounting shaft so that a height position thereof can be adjusted.