US2925300A

US2925300A - Material handling device

Info

Publication number: US2925300A
Application number: US596782A
Authority: US
Inventors: Ralph R Kelley
Original assignee: Individual
Current assignee: Individual
Priority date: 1956-07-09
Filing date: 1956-07-09
Publication date: 1960-02-16
Anticipated expiration: 1977-02-16

Description

Feb. 16, 1960 R. KE 2,925,300

MATERIAL HANDLING DEVICE Filed July 9, 1956 f/vvelvrok RALPH A. Many 5y 6 0775 dSHM/DAN JTTQPNEVS in the vertical position a 1 I "fig; 3 is'aside elevation offa co "embracing the :second-"mbodime vention.=*

: devicefor handling coils of metal. V

' lift and manipulatecoils of metal. 'Strip steel is supplied. 20

- a device such as a slitter- During these operations a chain is disposed on the'coil for engagement by the crane hook.'-, .This isan inefi'icient and. risky makeshift.

' vide a material handling device, particularly adaptedfor' with coils of metal, which utilizes the following description-QandQappendedclaims, reference;

- designate corresponding parts; 1,

. embracing thefirstiembodimentofthe resenfinvention ,a' coil beingshown .inthe' horizontal United States PatcntaQ "ice 5' ogy employed hereinis for the purpose of: description f v and not of limitation. i r Referring to the drawings, Fig. 1 shows a coil handling 2,925,300 mechanism usingoneembodiment of the present .in-

if I i l '5' venti on. The'device comprises atraclt member Ill-hav- M l L H G V E I sing'an upper rail -12. a nd a lower rail '14; Similar rails" v R K n D k b Mi are prov ded on the opposite; side of the track member. e f Q t A;balance memberl6. is provided atthe top of, the device. Application y 5. UQLNP- '5 5211...{ The .;balance member is :provided with wheels Hand 20' I 4 agi g v 10 which are disposedon the axles 22 and24- respectively;

These wheels engagethe rails 12.and 14m the track member .10. Similar wheels are provided on the opposite, side of the track member. I I Q A'fiange-26is'afii'xed to one end of the track member ,Thqr Invention relates n r y to frnatetlalv 15. 10. A threaded'shaft 28 is journaled in the flange 26. fldlln i a p l y improvem a and extends through the balance member 16 in threaded;

engagement therewith. A hand wheel 30 is disposed on one end, of the shaft 28, and a'handle 32 is ailixed to the' hand-wheel; Rotation of the hand wheel"30-will move. the .balancemember along-the track member 10to bal ance the device when 'it performs a lifting function. 'An' opening 34 is provided in -the. balance member 16 to f accommodatea crane book (not shown). i A vertical-support member36 is afiixed to the track} member '10. A trunnion 38 is formed at the bottom of the vertical support n'l'einber 36. .The 'trun'nioni is dis posed at a 45,deg ree angle with respect to the vertical 7 support member 36. A clamp bracket 40 is provided waytof'handlmg 60115505111991! I 1 fadjacentthe trunnion 38. The clamp bracket 40 includes 'Devlces have. been proposed for solvmgthls problem 3 'a s tub shaft 42 which extends within the trunnion 38 in a i of material h f L Y- been p and rotatable engagement therewith. The stub shaft is re costly P f r L? tained in thetrunnionby any suitable means suchias the It is a Prlnclpal oblact 1 Present lnventlon P bolt 44 which extendsthrough the openend oftrunnion- 38intoa'threaded opening in the end of s'tub shaft 42.

vide a material' handling :device, particularly adapted" for handling coils of metal, Which-3531111516 in 001153116 A Washer 46 is disposed between the head "ofthe bolt 44 tion-and positive and eflicientinoperation'. g and h fidf trunnion g Disposed'through clamp braket is "an'adjusti'ng mechanism- 47. This adjusting mechanisincomprises a It is another object of the present invention tdprovide vertical slidemember 48' which has a clamp jaw 50- afa balanced device adapted for-use with'a crane; which. device will effectively lift and manipulate coils;of metal fiXedto thelower, end thereof. Journaled in the slide member 48 is a threaded shaftSl which 'engagesf'a' into various positions. 1 l a 40 his a'further object of the present invention to prop p V threaded lug 52 in the clamp bracket 40. 1 ,A hand wheel handling coils of metal, whlch requires rninunl m n 54j-having a'handle 56 thereon. is affixedito the tope'nd' p a l 1 1i 4 j ,1 ofthreadedshaft 51. Rotation of the hand wheel "54f anotherlobject of the P UPW W P R FQ Y wilhraise and lower-the cramp jaw '50 with respect to the a materialhandling device;particularly adapted for use a'fi p t g r i x V 2 crane hook is inserted throug nce' i'nember 16.: Hand wheel 54 has the onesho;

Prior to the present invention. a simpler and efficient devicehas been sought which could workwith a cranetol in coils-usually weighing several thousand pounds.,-These I coils must be unloaded from thetrans'porting trailer. which delivers the same; The'coils'are then stored.in. a. suitable location. They. areu sually manipulated-at a later time ontoa coil reel which feeds the. strip steel 10125 Obiact being at d edfiql skt iqbiec l 11 appear. injthe Other objects of this invention w being ha qth a9mt uyin .d aw sto n a P t rsp q rat n wherein -.In the 'drawings: r. g. Fig. 1' is a sideflelevationof.a;coil h Fig. 4' is a side elevation of a coil handling mechanism "shaft 42, the stub shaft rotatingwithin'the trunnion 38. I using the third embodimentjof the present-invention. 652A1S 01jf the-coil is}first.liftedjin oneposition; it canbe' Before explaining the: present invention in detail; it turnedfto a'difi tn P 'w l h ltfl mpby i1 1 is to be understood that the invention is not limited. in I :tating mPTDI kQ 'j p l its application to the details of construction. and arrange- The $66011? embodiment 18 how In Fig. 0f the drawment' of parts illustrated in theaccompanying drawings, g f embodiment, electllc motors and 154 since the invention is capable of other e b di ts nd 7,0 are substltuted

forthe hand Wheels

30 and 54 shown in of being practiced or carried out invarious ways. Also,

Fig. 1. Also an electric motor 144 is aflixed to the stub it i to be understood that the .phraseology or terminolshaft 142 of the clamp bracket 140. Suitable electrical controls, not shown, will energize the motor 130 to move the balance member 116 back and forth on the threaded shaft 128 to establish balance. Electrical controls may also energize the motors 154' and'i4 l to perform the clamping actions and pivoting actions respectively. Any well known arrangement of electrical controls' can' be used, andso such controls are not shown in the-drawings. The use of electrical motors and controls adds to the cost of the device, but may render it automatic in operations a Fig. 4-of the drawings shows an embodiment wherein the weight of the object being lifted acts to, lock the clamping jaws in place. in this arrangemenha guiding eyelet 258v and a pulley are aifozed to the horizontal member- 219; A pulley 262 is to the vertical member 236, and a pulley 264' is afiixed to the trunnion 23th A lifting cable26'6 is disposed'al-o'ng these pulleys and extends through an opening in the center of'the stub shaft 242 which extends'down through'thc bottom ofthe clamping bracket 24%. The cable then xtends over pal-lay 263 and is afiixed to clamping bracket 240. When a coil of metal is disposed between the clamping jaw 250 and the clamping bracket 24%, a lifting force is applied to the upper end of the cable 266' by a crane. 'The lifting force pulls against the weightbf the coil, and this lifting force is transferred through the cable 266 to tightly engagev the jaws 24h? and'ZSdWith the coil. A balancing mechanism such as shown in Figs. 1-3 can also be used with this embodiment.

From the foregoing description, it will be apparent that I have provided a novel and efficient' material-hark dlingdevice which is simple in arrangement and operation.

Having thus described my invention, I claim:

1. A material handling device, particularly adapted for 'use with a coiled workpiece such as a coil of metal, comprising a substantially Leshaped frame member which includes a horizontal leg and a vertical log; a trunnion in the lower portion of said vertical leg, the axis of said trunnion being vdisposed at substantially a forty-fivedegree angle relative to said vertical leg; a horizontal clamp bracket having a shaft thereon disposed in rotatable en-. gagement with said trunnion; a vertical slide member having a horizontal clamp jaw rigidly aifixed thereto, said clamp jaw being slidable on said slide member; means for moving at least one of said clamp members so that the workpiece is gripped firmly between thesaid clamp members; said clamp members being .turnable to avertical position about the axis of said trunnion so that, the workpiece can be placed in either ahorizontaltorv adjacent the free end of the horizontal leg on said frame;

and the free end of said flexible cable secured to a lifting device such as a crane. j

3. A material handling device, particularly adapted for use with a coiled workpiece such as a coil of metal, comprising a substantailly L-shaped frame member which includes a horizontal leg and a vertical leg; a trunnion in a the lower portion of said vertical leg, the axis of said trunnion being disposed at substantially a forty-five degree angle relative to said vertical leg; a horizontal clamping bracket having a shaft thereon disposed in rotatable engagement with said trunnion; a vertical slide member having a horizontal clamp jaw rigidly aflixed thereto, said clamp jaw being slidable on said slide'mem ber; means for moving at least one of-said-clamp members so that the workpiece is gripped firmly between the said clamp members; said clamp members being turnable to a-vertical position about the axis of said trunnion so that the workpiece can be placed in either a horizontal or vertical position; and means for afi'ixing the horizontal legof said frame member toa lifting mechanism such asacrane, said means being movable along the horizontal leg of said frame member to balance the material'handling device. Y

4. A material handling 'device, particularly adapted for use with a coiled workpiece such as a coil of metal, I

comprising a substantially 'L-shaped frame member which includesahorizontal leg and avertical leg; a trunnion I in the lower portion of said vertical leg, the'axis of said vertical position; and means on said, horizontal jleg to permit said frame member to be secured [to a lifting mechanism'such as a crane. j

'2. A material handling Idevicegparticularly adapted "for, use'wi'th a coiled workpiece'such asa coil of -metal, comprisingasubs'tantially rL shaped frame member which in-i cludes a horizontal leg and alv ertical leg; a tru'nnionid thelbwer 'portionof said vertical leg, the axis of said? trunnion bcing'disposed at substantially aforty-fivede' gr'e'efaugle relative to said vertical; leg; a horizontal'clamfi brackct'liavingia'shaft thereon disposed in rotatable err-f gagement'with said trunnion; a? vertical slidefm'rriber f having a horizontal 'clamp jaw j rigidly afiixedther'eto; sa d clamp jaw being slidable'on said slide .memberg al guide" aflixed to said slide member adjacent said clamp:

trunnion being disposed at substantially a forty-five de-' gree angle relative to said vertical leg; a horizontalclamping bracket having a shaft thereon disposed in rotatable engagement with said trunnion; a vertical slide '-member' having a horizontal clamp jaw rigidly aifixed thereto, said clamp jaw being slidable on said slide'member; means for moving at least one of said clamp members so that the workpiece is gripped firmly between the said clamp members; said clamp members being turnable to a vertical position about the axis of said trunnion so that the-workpiece can be placed in either a horizontal orvertical position; means on'the horizontal leg of said frame member for securing said frame to a lifting mecha nism such as acrane; and adjusting means for moving said fasteningvm eans along said horizontal leg to balance the material handling device.

a 7 References Cited 'in the file of this patent UNITED STATES PATENTS 195s I a