US3614150A - Lifting hook - Google Patents

Abstract

A lifting hook is provided with a hook finger engageable with a corner clip strapped to a pulp bale. Below the lifting finger the hook has a clamping foot comprising an enlarged substantially flat surface for pressing against the side of a pulp bale. A lifting ear is provided on the hook above the hook finger and extends inwardly overlying the pulp bale so that a lifting force applied to the ear will cause the clamping foot to pivot about the corner clip inwardly against the bale. A handle is secured to the hook for positioning the hook finger within the corner clip. A plurality of such lifting hooks are used simultaneously in a lifting apparatus with the clamping feet engaging opposed pulp bales.

Description

United States Patent [72] Inventor James A. Pasic Aberdeen, Wash. [2]] Appl. No. 37,196 [22] Filed May 14, 1970 [45] Patented Oct. 19, 1971 [73] Assignee Ovalstrapping, Inc.

Hoquiam, Wash.

[54] LIFTING HOOK 8 Claims, 4 Drawing Figs.

[52] US. Cl 294/78 R, 294/67 DA, 294/83 R [51] Int. Cl B66c 1/34 [50] Field of Search 294/31.2, 63, 67, 74, 78, 86, 81

[56] References Cited UNITED STATES PATENTS 1,686,074 10/1928 Currie 294/82 3,203,726 8/1965 Smith 3,413,027 11/1968 Bohlinetal Primary Examiner-Even C. Blunk Assistant Examiner-lohnny D. Cherry Alt0rneySeed, Berry & Dowrey ABSTRACT: A lifting hook is provided with a hook finger engageable with a comer clip strapped to a pulp bale. Below the lifting finger the hook has a clamping foot comprising an enlarged substantially flat surface for pressing against the side of a pulp bale. A lifting ear is provided on the hook above the hook finger and extends inwardly overlying the pulp bale so that a lifting force applied to the ear will cause the clamping foot to pivot about the corner clip inwardly against the bale. A handle is secured to the hook for positioning the hook finger within the corner clip. A plurality of such lifting hooks are used simultaneously in a lifting apparatus with the clamping feet engaging opposed pulp bales.

PAIENTED'nm 19 I97! INVENTOR. JAMES A. PASIC BY Q ATTORNEYS LIFTING HOOK BACKGROUND OF THE INVENTION Field of the Invention This invention pertains to lifting or hoisting apparatus, and more particularly, to apparatus employing lifting hooks that are usable with corner clips strapped on loads, such as pulp bales or the like.

SUMMARY OF THE INVENTION It is an object of this invention to provide an apparatus for lifting multiple sets of strapped loads.

It is another object of the invention to provide a lifting hook having a clamping foot which is moved tightly into engagement with the side of the load as a lifting force is applied on the hook.

Basically the apparatus for lifting multiple sets of strapped loads includes comer clips held beneath the straps joining each set of loads. The comer clips are engaged by lifting hooks each of which has a hook finger for engaging the clip, a clamping foot which presses against the side of the bales below the comer slips and a lifting ear which extends inwardly overlying the load. The lifting ears are supported by cables which are fastened to a lifting frame. In this manner the lifting hooks are always engaged at the corner of the load and are swung upright clamping the clamping foot against the side of the load thus stabilizing the hook and preventing it from swinging outwardly to interfere with adjacent loads.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an isometric view illustrating apparatus embodying the principles of the invention for lifting loads, such as pulp bales.

FIG. 2 is a side elevation of a lifting hook embodying the principles of the invention.

FIG. 3 is an end elevation of the lifting hook shown in FIGS. 1 and 2.

FIG. 4 is an isometric of a portion of the apparatus shown in FIG. 1 illustrating a corner clip engaged by the lifting hook as shown in FIG. 1.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The lifting hook, of the present invention is used with a comer clip 12 shown in phantom lines in FIGS. 2 and 3, which is strapped onto the load by wires or strap 14. The comer clip is fully disclosed in Pasic copending application Ser. No. 836,281, filed June 25, I969. The comer clip has a horizontal leg 15 and a vertical leg 16, which position the clip on the comer of a load, and a hook-engaging opening 18.

The lifting hook is provided with a body 22 to which is joined a hook finger 20. The corner clip is engaged by inserting the lifting finger through the hook-receiving opening 18. The hook finger 20 is provided with a substantially flat, horizontal clip engaging surface 24 and an upright outer end 26 which prevents the finger from inadvertently becoming disengaged from the corner clip.

Secured to the body 22 below the hook finger 20 is an enlarged, substantially flat clamping foot 28 which engages the side of the load L. Secured to the body above the hook finger 20 is an inwardly extending lifting ear 30 which overlies the load L when the hook finger is engaged in the corner clip. The lifting ear is provided with an opening 32 that is connected by a cable 33 to a lifting frame 34. A handle 36 is secured to the upper end of the body 22 for positioning the lifting hook.

By positioning the lifting ear 32 over the load the clamping foot is pivoted about the comer clip against the load. In this manner the foot holds the lifting hook stable once the finger is engaged. Since the thickness of the hook protruding laterally from the load is very small the loads may be stacked next to one another with little difficulty. In FIG. 1 four sets of loads are illustrated supported from one lifting frame. More or less may of course be carried depending upon the length of the frame.

While the preferred form of my invention has been illustrated and described it should be understood that variations in the details thereof will be apparent to one skilled in the art. Accordingly, it is my intention that the scope of the invention be limited only by a proper interpretation of the claims appended hereto.

The embodiments of the invention in which a particular property or privilege is claimed are defined as follows:

1. A lifting hook for use in lifting strapped loads such as pulp bales or the like, comprising a hook body, a lifting finger secured to the body, said lifting finger having an upper supporting surface for supporting the load by the strap, a clamping foot secured to the body below said lifting finger and engageable with the load, and a lifting ear extending inwardly from the body overlying the load and having means thereon for engagement by lifting means for providing an upward force on said lifting ear whereby imposition of the upward force results in the lifting hook pivoting about said lifting finger and forcing said clamping foot against the load.

2. The lifting hook of claim 1 wherein comer clips having finger receiving openings are strapped to the upper corners of the load and wherein said finger is inserted in a corner clip finger receiving opening.

3. The lifting hook of claim 2 wherein said 6 clamping foot includes a substantially large flat face engageable with the load.

4. The lifting hook of claim 2 in combination with a plurality of additional such lifting hooks, said lifting means including a plurality of cables each secured to the lifting ear of a lifting hook, and a lifting frame secured to the cables wherein a plu rality of loads can be simultaneously lifted with the clamping feet engaging opposed loads.

5. A lifting hook for use in lifting strapped loads such as pulp bales or the like, comprising a hook body, a lifting finger secured to the body said lifting finger including a horizontal clip engaging surface and an upright terminal end for holding the clip engaging surface on the comer clip, a clamping foot secured to the body below said lifting finger and engageable with the load, and a lifting ear extending inwardly from the body overlying the load and being engageable by lifting means for providing an upward force on said lifting ear whereby imposition of the upward force results in the lifting hook pivoting about said lifting finger and forcing said clamping foot against the load, further including corner clips strapped to the load and wherein said finger is inserted in a comer clip, and wherein said clamping foot includes a substantially large flat face engageable with the load.

6. The lifting hook of claim 5 further including a positioning handle secured to the upper end of the hook body.

7. Apparatus for lifting multiple strapped loads such as pulp bales or the like comprising at least two sets of opposed strapped loads, comer clips secured by the straps to the outer comers of each set of opposed strapped loads, lifting hooks each having a hook finger engaged in a corner clip, a clamping foot engaging the side of the load below the lifting finger, and an inwardly extending lifting ear overlying the load, cables secured to said lifting ears and to a lifting frame, the cables associated with one set of loads being spaced from the cables associated with the other set of loads, and means for lifiing the lifting frame.

8. A lifting hook for use in lifting loads such as pulp bales or the like, comprising a hook body, a lifting finger secured to the body, a clamping foot secured to the body below said lifting finger and engageable with the load, and a lifting ear extending inwardly from the body overlying the load and being engageable by lifting means for providing an upward force on said lifting ear whereby imposition of the upward force results in the lifting hook pivoting about said lifting finger and forcing said clamping foot against the load, and wherein the lifting finger and clamping foot are in the same plane and are parallel to the side of the load, and the lifting ear is at a generally right angle to said plane.

Claims (8)

1. A lifting hook for use in lifting strapped loads such as pulp bales or the like, comprising a hook body, a lifting finger secured to the body, said lifting finger having an upper supporting surface for supporting the load by the strap, a clamping foot secured to the body below said lifting finger and engageable with the load, and a lifting ear extending inwardly from the body overlying the load and having means thereon for engagement by lifting means for providing an upward force on said lifting ear whereby imposition of the upward force results in the lifting hook pivoting about said lifting finger and forcing said clamping foot against the load.

2. The lifting hook of claim 1 wherein corner clips having finger receiving openings are strapped to the upper corners of the load and wherein said finger is inserted in a corner clip finger receiving opening.

3. The lifting hook of claim 2 wherein said 6 clamping foot includes a substantially large flat face engageable with the load.

4. The lifting hook of claim 2 in combination with a plurality of additional such lifting hooks, said lifting means including a plurality of cables each secured to the lifting ear of a lifting hook, and a lifting frame secured to the cables wherein a plurality of loads can be simultaneously lifted with the clamping feet engaging opposed loads.

5. A lifting hook for use in lifting strapped loads such as pulp bales or the like, comprising a hook body, a lifting finger secured to the body said lifting finger including a horizontal clip engaging surface and an upright terminal end for holding the clip engaging surface on the corner clip, a clamping foot secured to the body below said lifting finger and engageable with the load, and a lifting ear extending inwardly from the body overlying the load and being engageable by lifting means for providing an upward force on said lifting ear whereby imposition of the upward force results in the lifting hook pivoting about said lifting finger and forcing said clamping foot against the load, further including corner clips strapped to the load and wherein said finger is inserted in a corner clip, and wherein said clamping foot includes a substantially large flat face engageable with the load.

6. The lifting hook of claim 5 further including a positioning handle secured to the upper end of the hook body.

7. Apparatus for lifting multiple strapped loads such as pulp bales or the like comprising at least two sets of opposed strapped loads, corner clips secured by the straps to the outer corners of each set of opposed strapped loads, lifting hooks each having a hook finger engaged in a corner clip, a clamping foot engaGing the side of the load below the lifting finger, and an inwardly extending lifting ear overlying the load, cables secured to said lifting ears and to a lifting frame, the cables associated with one set of loads being spaced from the cables associated with the other set of loads, and means for lifting the lifting frame.

8. A lifting hook for use in lifting loads such as pulp bales or the like, comprising a hook body, a lifting finger secured to the body, a clamping foot secured to the body below said lifting finger and engageable with the load, and a lifting ear extending inwardly from the body overlying the load and being engageable by lifting means for providing an upward force on said lifting ear whereby imposition of the upward force results in the lifting hook pivoting about said lifting finger and forcing said clamping foot against the load, and wherein the lifting finger and clamping foot are in the same plane and are parallel to the side of the load, and the lifting ear is at a generally right angle to said plane.

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