Patent Grant
7290815
1. Field of the Invention
The present invention relates generally to hoisting and, more specifically, to an improved hoisting sling, specially palletized loads comprising a pair of blades having opposing ends, each with a channel terminating in a puck-shaped cavity forming means of engagement for lengths of load bearing members having mating puck-shaped members thereon. The load bearing members extend from distal ends of a spreader frame extending between and having means for engaging the load bearing members. Depending from the intersection of the spreader arms an anchor line extends to a common load bearing member serving as terminus for load bearing members extending to the terminal ends of the spreader arms and also serving as point of attachment for a user selected hoisting device.
2. Description of the Prior Art
There are other hoist devices designed for load bearing. Typical of these is U.S. Pat. No. 762,875 issued to Blodgett on Jun. 21, 1904.
Another patent was issued to Sammon on May 28, 1912 as U.S. Pat. No. 1,027,907. Yet another U.S. Pat. No. 1,401,206 was issued to Swartz on Dec. 27, 1921 and still yet another was issued on Oct. 24, 1933 to Mueller as U.S. Pat. No. 1,931,931.
Another patent was issued to Ward on Oct. 9, 1973 as U.S. Pat. No. 3,764,032. Yet another U.S. Pat. No. 3,945,674 was issued to Ide on Mar. 23, 1976. Another was issued to Stohler et al. on Jun. 14, 1983 as U.S. Pat. No. 4,388,032 and still yet another was issued on Nov. 17, 1992 to Boos et al. as U.S. Pat. No. 5,163,726.
Another patent was issued to Allen et al. on Jan. 28, 1981 as U.K. Patent No. GB1583642. Yet another U.K. Patent No. GB2041885 was issued to Krestensen on Sep. 17, 1980. Another was issued to Kenji on Sep. 9, 2004 as Japanese Patent No. JP2004250188 and still yet another was published on Dec. 9, 2004 to McGinley as International Patent No. WO 2004/106214.
In a sling, the combination with a crossbar having eyes at its ends, of chains secured to the bar, passed up through the eyes and connected together, chains supported
In a hoisting sling, the combination of an tipper bar and a lower bar, the said lower bar carrying sleeves on its opposite ends and having an aperture at each end, said sleeves having apertures in their tipper sides to register with the apertures in the lower bar, pulley wheels mounted in said apertures in the lower bar, a rope or cable secured to each end of the upper bar and passing down around the pulley wheel carried in the adjacent end of the lower bar, said upper bar having apertures in its opposite ends through which said ropes or cables move after passing around the pulley wheels, and means for connecting said ropes or cables to a hoisting cable, the said bars constituting a pair of movable jaws to grip the load carried by the sling, between them and prevent displacement thereof.
A lumber cradle comprising, in combination, a frame adapted to rest upon the top of the load; an arm hingedly connected to the frame, a suspension device and lifting means both connected to the free end of the arm.
In a hoisting sling of the type set forth, a frame, two pairs of levers pivotally mounted on the frame and each having two arms, one pair at each end thereof, a clamping bar connecting companion arms of each pair of levers, a hoisting chain connected to the other arm of each lever, a stirrup member depending from each corner of said frame and carrying at its lower end a stirrup and having means at its upper end for adjustably connecting it to said frame to enable the stirrup members to be adjusted vertically to accommodate packages of different thickness or height.
An attachment device especially for lift trucks adapted to engage, lift and transport large freight containers. A support frame is provided for attachment to the lift carriage on the mast of a lift truck so that the horizontal portion′ of the frame extends forwardly of the truck. An elongated transverse lifting frame is suspended from corner portions of the horizontal portion of the support frame. A pair of oppositely disposed hydraulic cylinder actuators are connected at their one ends to the horizontal frame portion and extend diagonally in opposite directions for operative connection at their other ends to the lifting frame so that the lifting frame may beside shifted in either direction relative to the truck by energizing one or the other of the cylinders.
A load-retaining apparatus including a pallet floor having an upstanding cage mounted thereon for receipt within of a load carried on such pallet floor. A horizontally projecting retainer is provided for resting on such load to hold it captive and is carried from such cage by means of pivotable lifting arms coupled with a hoisting device in such a manner that hoisting of the cage causes such arms to rotate and automatically lower the retainer onto such load. When the pallet subsequently comes to rest on the ground and tension is taken off this hoisting device, the arms are biased to their retracted positions to raise the retainer off such load.
A lifting and stowage system for lifting and stowing containers within a limited magazine area. The system provides a sway bracing feature during lifting which also functions as a stowage member when completely assembled. The system also includes a pair of guide rails attached vertically to the bulkhead and a carriage that travels up and down the guide rails. A strongback is attached to the carriage and is located over the container that is positioned by a forklift. The system employs a lifting mechanism consisting of a power source, a pulley and cable system, a snatch block which attaches to the carriage, a stowage system which restrains the stack of containers in all directions and deceleration buffers. In operation, the strongback is attached to the container and the snatch block is attached to the carriage. The container is lifted to allow vertical clearance for the next container. The lower container is positioned by a forklift and the upper container is lowered onto it. The tie down system is then installed and the snatch block disconnected and returned to its stow position. The reverse is followed for unstacking.
A cargo loading system which includes a spreader bar and overheight attachment wherein the overheight attachment incorporates an automatic latching mechanism for the purpose of locking and unlocking engagement of the spreader bar. The automatic latching mechanism is actuated by the twistlocks of the spreader bar and serves to obviate the need for dock-side personnel and the attendant hazardous working conditions posed to these personnel by conventional mounting pin attachment of the spreader bar and overheight attachment.
A method of supporting and stacking containers comprises raising a first container (50) on an elevator, securing the container in a raised position by means of supports, lowering the elevator, raising a second container (53) on the elevator such that the base of the first container (50) is supported by the top of the second container and releasing the securement of the first container. The elevator may then be raised again and the second container (53) secured by the supports. The elevator can then be lowered clear of the second container. Apparatus for performing the method comprises two supports spaced apart to opposite sides of a container receiving location. Container engagement means are provided on each of the supports which are adjusted for engagement with a container and are capable of supporting the container upon removal of the elevator. Each container engagement means comprises a container engagement member mounted on a support arm which in turn is movably mounted on an associated support.
A method of supporting and stacking containers comprises raising a first container (50) on an elevator, securing the container in a raised position by means of supports, lowering the elevator, raising a second container (53) on the elevator such that the base of the first container (50) is supported by the top of the second container and releasing the securement of the first container. The elevator may then be raised again and the second container (53) secured by the supports. The elevator can then be lowered clear of the second container. Apparatus for performing the method comprises two supports spaced apart to opposite sides of a container receiving location. Container engagement means are provided on each of the supports which are adjusted for engagement with a container and are capable of supporting the container upon removal of the elevator. Each container engagement means comprises a container engagement member mounted on a support arm which in turn is movably mounted on an associated support.
PROBLEM TO BE SOLVED: To prevent occurrence of damage to plate bodies when the plate bodies with brittleness represented by ALC panels are stacked and transferred. SOLUTION: The hoisting fixture A comprises at least two supporting members 1 that are formed substantially equally to or longer than the cargo width of the plate bodies B, are arranged on the lower surface of the plate bodies B, and support them for hoisting a mountain formed by stacking the plurality of plate bodies B having brittleness. The hoisting fixture A comprises a frame 5 having a locked member 7 to be locked to a hook of a crane and a plurality of engaging sections 8 disposed at predetermined positions that are separated equally to or longer than the cargo width of the plate bodies and along the length direction of the plate bodies, and a plurality of nylon slings 4 for connecting the supporting members 1 to the engaging sections 8 in the frame 5.
A lifting and turning apparatus (1) adapted for connection to an overhead support (B), the apparatus comprising a payload engaging means (12,14) which is operably coupled to and supported by a chain (10) which is driven by a pair of electrically actuable brake/drive units (5,6). A method of manipulating a payload is also described, the method comprising en-aging the payload (R) to a lifting and turning apparatus (1) of the type operably suspended from an overhead support (B) and supporting said payload via a chain driven by brake/drive units and a hoist (2) also including a chain drive for effecting a turning function. Together or separately, by actuating the brake/drive units and/or the hoist, the apparatus may lift, turn, lower or otherwise manipulate the payload. The apparatus includes a simplified, intuitive controller and control technique for the manipulation of the payload.
While these hoist devices may be suitable for the purposes for which they were designed, they would not be as suitable for the purposes of the present invention, as hereinafter described.
The present invention discloses an improved hoisting sling specially for palletized loads comprising a pair of skids having opposing ends, each with a channel terminating in a puck-shaped cavity forming means of engagement of lengths of load bearing members having mating puck-shaped members thereon. The load bearing members extend from distal ends of a spreader frame extending between and having means for engaging the load bearing members. Depending from the intersection of the spreader arms an anchor line extends to a common load bearing member serving as terminus for load bearing members extending to the terminal ends of the spreader arms and also serving as point of attachment for a user selected hoisting device.
A primary object of the present invention is to provide means and apparatus to move a load of palletized material safely.
Another object of the present invention is to provide a hoist sling having a pair of blades each with a terminal end cavity with a channel extending to the tip of the blade.
Yet another object of the present invention is to provide a hoist sling having load bearing members releasably fastenable to the blades.
Still yet another object of the present invention is to provide a hoist sling having load bearing members with a puck-like lifting lug fastened thereto.
Another object of the present invention is to provide a hoist sling having a load bearing member support frame with means for retaining one end of a load bearing member.
Yet another object of the present invention is to provide a hoist sling having load bearing members converging on a hoist sling attachment serving as terminus to the load bearing members.
Additional objects of the present invention will appear as the description proceeds.
The present invention overcomes the shortcomings of the prior art by providing an improved hoisting sling, especially useful on palletized loads comprising a pair of blades having opposing ends, each with a channel terminating in a puck-shaped cavity forming means of engagement for lengths of load bearing members having mating puck-shaped members thereon. The load bearing members extend from distal ends of a spreader frame extending between and having means for engaging the load bearing members. Depending from the intersection of the spreader arms an anchor line extends to a common load bearing member serving as terminus for load bearing members extending to the terminal ends of the spreader arms and also serving as point of attachment for a user selected hoisting device.
The foregoing and other objects and advantages will appear from the description to follow. In the description reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. These embodiments will be described in sufficient detail to enable those skilled in the art to practice the invention, and it is to be understood that other embodiments may be utilized and that structural changes may be made without departing from the scope of the invention. In the accompanying drawings, like reference characters designate the same or similar parts throughout the several views.
The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is best defined by the appended claims.
In order that the invention may be more fully understood, it will now be described, by way of example, with reference to the accompanying drawings in which:
With regard to reference numerals used, the following numbering is used throughout the drawings.
The following discussion describes in detail one embodiment of the invention (and several variations of that embodiment). This discussion should not be construed, however, as limiting the invention to those particular embodiments since practitioners skilled in the art will recognize numerous other embodiments as well. For a definition of the complete scope of the invention, the reader is directed to the appended claims.
Turning to
Turning to
Turning to
Turning to
Turning to
Turning to
Turning to
Turning to
Turning to
Turning to
Turning to
| Number | Name | Date | Kind |
|---|---|---|---|
| 762875 | Blodgett | Jun 1904 | A |
| 1027907 | Sammon | May 1912 | A |
| 1401206 | Swartz | Dec 1921 | A |
| 1834902 | Payzant | Dec 1931 | A |
| 1918007 | Woodruff | Jul 1933 | A |
| 1931931 | Mueller | Oct 1933 | A |
| 2235719 | Matarese | Mar 1941 | A |
| 2998994 | Karr | Sep 1961 | A |
| 3764032 | Ward | Oct 1973 | A |
| 3945674 | Ide | Mar 1976 | A |
| 4388032 | Stohler et al. | Jun 1983 | A |
| 4538849 | Khachaturian et al. | Sep 1985 | A |
| 4826228 | Dinitz et al. | May 1989 | A |
| 5163726 | Boos et al. | Nov 1992 | A |
| Number | Date | Country |
|---|---|---|
| 2.041.885 | Sep 1980 | GB |
| 1.583.642 | Jan 1981 | GB |
| 2004250188 | Sep 2004 | JP |
| WO2004106214 | Dec 2004 | WO |
