US2957594A - Lift truck - Google Patents

Lift truck Download PDF

Info

Publication number
US2957594A
US2957594A US819653A US81965359A US2957594A US 2957594 A US2957594 A US 2957594A US 819653 A US819653 A US 819653A US 81965359 A US81965359 A US 81965359A US 2957594 A US2957594 A US 2957594A
Authority
US
United States
Prior art keywords
plate
forks
lift truck
platform
lift
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US819653A
Inventor
Roderick L Brenneman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US819653A priority Critical patent/US2957594A/en
Application granted granted Critical
Publication of US2957594A publication Critical patent/US2957594A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • B66F9/14—Platforms; Forks; Other load supporting or gripping members laterally movable, e.g. swingable, for slewing or transverse movements
    • B66F9/147—Whole unit including fork support moves relative to mast

Definitions

  • the present invention relates to a lift truck and particularly to a load engaging attachment for a fork lift truck.
  • the primary object of the invention is to provide :a swivel load support for the lifting forks of a lift truck to permit a relatively long load to be maneuvered into and out of relatively confined spaces.
  • Another object of the invention is to provide a swivel attachment of the class described above which can be attached and removed speedily with a minimum of tools and equipment.
  • a further object of the invention is to provide a swivel attachment of the class described above in which antifriction means supports the load to assist in the swiveling action.
  • a still further object of the invention is to provide a swivel attachment for lift trucks of the class described above which is inexpensive to manufacture, simple to attach and which permits a greater latitude in the use of the lift truck in confined spaces.
  • Figure 1 is a perspective view of the invention shown attached to a lift truck and in use;
  • FIG. 2 is an enlarged fragmentary perspective view of the invention
  • Figure 3 is a longitudinal vertical sectional view taken through the attachment
  • Figure 4 is a top plan view of the attachment
  • Figure 5 is an enlarged fragmentary vertical section taken along the line 55 of Figure 4, looking in the direction of the arrows;
  • Figure 6 is an enlarged fragmentary vertical sectional view taken along the line 6-6 of Figure 3, looking in the direction of the arrows.
  • the reference numeral 10 indicates generally a swivel attachment for a lift truck generally indicated at 11.
  • the lift truck 11 includes a vertically movable frame 12 having a pair of forks 13 mounted for swinging movement on a horizontal shaft 14.
  • the forks 13 each include a generally vertical portion 15 carrying on the lower ends thereof a forwardly extending horizontal portion 16.
  • the horizontal portions 16 of the forks 13 are arranged in spaced parallel relation, as can be clearly seen in Figure 4.
  • the horizontal portions 16 of the forks 13 are each provided with a horizontal ear 17 on the adjacent inner edges thereof.
  • a generally rectangular flat plate 18 is positioned be tween the horizontal portions 16 of the forks 13 and is secured to the ears 17 by means of bolts 19.
  • a generally rectangular bar 20 is secured to the upper surface of each side edge of the plate 18, projecting beyond the side edges thereof to rest on the horizontal portions 16 of the forks 13, as is clearly shown in Figure 2.
  • a transverse bar 21 is arranged in underlying relation to the inner end of the plate 18 and is spaced therebelow by a pair of oppositely disposed spacing blocks 22. The bar 21 engages under the inner ends of the horizontal portions 16 of the forks 13 adjacent the vertical portions 15 thereof.
  • the bars 20, the bar 21 and the bolts 19 secure the plate 18 to the horizontal portions 16 of the forks 13 so that movement of the forks 13 will cause similar movement of the plate 18.
  • a generally rectangular flat platform 23 is provided With an upstanding flange 24 adjacent one edge thereof.
  • the platform 23 has a cylindrical pin 25 welded thereto in centrally positioned depending relation.
  • the plate 18 has a vertical opening 26 formed therein axially aligned with the pin 25 and underlying the pin 25.
  • a raceway plate 27 is welded to the upper face of the plate 18 and has a central bore 28 formed therein through which the pin 25 extends.
  • a washer 29 is secured to the lower end of the pin 25 by bolts 30 extending upwardly therethrough.
  • a plurality of ballbearing rollers 31 of conventional design are interposed between the platform 23 and the raceway plate 27 to support the platform 23 above the plate 18 and to permit swiveling movement of the platform 23 with respect to the plate 18.
  • an exceptionally long load such as the stack of plywood, indicated generally at 32 in Figure l, is supported centrally on the platform 23 and moves with the lift truck 11 to the desired position.
  • the load 32 can be turned with respect to the truck 11 to permit the load 32 to be moved through relatively narrow aisles, into and out of relatively narrow freight cars and into other positions wherein the lift truck 11 fails to have sufiicient maneuverability to otherwise handle exceptionally long loads.
  • a swivel attachment for lift trucks of the type including a pair of spaced parallel generally horizontal lifting forks having a pair of diametrically arranged ears formed integral with the adjacent inner edges of said lift forks, comprising a generally horizontal flat plate, a pair of longitudinally extending bars secured to the upper surface of said plate and extending outwardly beyond the side edges of said plate to engage the upper surface of said lift forks to retain said plate in operative relation to said forks, securing means extending through said plate and said ears to rigidly secure said plate on said lift forks, a transverse bar mounted on the undersurface of said plate and spaced therefrom by spacing blocks so that said transverse bar is mounted for engaging under said forks to support said plate between said forks, a generally rectangular platform centrally overlying the outer end of said plate, and means swivelly supporting said platform on said plate.
  • a device as claimed in claim 1 wherein said last named means includes anti-friction bearing means supporting said platform on said plate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Description

LIFT TRUCK 2 Sheets-Sheet 1 Filed June 11, 1959 Oct. 25, 1960 R. BRENNEMAN LIFT TRUCK 2 Sheets-Sheet 2 Filed June 11, 1959 VIII/111114;";
I l \I argue/wk a u JFopzzzac L bizzzm lmamr ATTORNEYS United States Patent LIFT TRUCK Roderick L. Brenneman, Rte. 1, Box 309, Corvallis, Oreg.
Filed June 11, 1959, Ser No. 819,653
3 Claims. (Cl. 214-620) The present invention relates to a lift truck and particularly to a load engaging attachment for a fork lift truck.
The primary object of the invention is to provide :a swivel load support for the lifting forks of a lift truck to permit a relatively long load to be maneuvered into and out of relatively confined spaces.
Another object of the invention is to provide a swivel attachment of the class described above which can be attached and removed speedily with a minimum of tools and equipment.
A further object of the invention is to provide a swivel attachment of the class described above in which antifriction means supports the load to assist in the swiveling action.
A still further object of the invention is to provide a swivel attachment for lift trucks of the class described above which is inexpensive to manufacture, simple to attach and which permits a greater latitude in the use of the lift truck in confined spaces.
Other objects and advantages will become apparent in the following specification when considered in light of the attached drawings, in which:
Figure 1 is a perspective view of the invention shown attached to a lift truck and in use;
Figure 2 is an enlarged fragmentary perspective view of the invention;
Figure 3 is a longitudinal vertical sectional view taken through the attachment;
Figure 4 is a top plan view of the attachment;
Figure 5 is an enlarged fragmentary vertical section taken along the line 55 of Figure 4, looking in the direction of the arrows; and
Figure 6 is an enlarged fragmentary vertical sectional view taken along the line 6-6 of Figure 3, looking in the direction of the arrows.
Referring now to the drawings in detail wherein like reference characters indicate like parts throughout the several figures, the reference numeral 10 indicates generally a swivel attachment for a lift truck generally indicated at 11.
The lift truck 11 includes a vertically movable frame 12 having a pair of forks 13 mounted for swinging movement on a horizontal shaft 14. The forks 13 each include a generally vertical portion 15 carrying on the lower ends thereof a forwardly extending horizontal portion 16. The horizontal portions 16 of the forks 13 are arranged in spaced parallel relation, as can be clearly seen in Figure 4.
The horizontal portions 16 of the forks 13 are each provided with a horizontal ear 17 on the adjacent inner edges thereof.
A generally rectangular flat plate 18 is positioned be tween the horizontal portions 16 of the forks 13 and is secured to the ears 17 by means of bolts 19. A generally rectangular bar 20 is secured to the upper surface of each side edge of the plate 18, projecting beyond the side edges thereof to rest on the horizontal portions 16 of the forks 13, as is clearly shown in Figure 2. A transverse bar 21 is arranged in underlying relation to the inner end of the plate 18 and is spaced therebelow by a pair of oppositely disposed spacing blocks 22. The bar 21 engages under the inner ends of the horizontal portions 16 of the forks 13 adjacent the vertical portions 15 thereof. The bars 20, the bar 21 and the bolts 19 secure the plate 18 to the horizontal portions 16 of the forks 13 so that movement of the forks 13 will cause similar movement of the plate 18.
A generally rectangular flat platform 23 is provided With an upstanding flange 24 adjacent one edge thereof. The platform 23 has a cylindrical pin 25 welded thereto in centrally positioned depending relation. The plate 18 has a vertical opening 26 formed therein axially aligned with the pin 25 and underlying the pin 25. A raceway plate 27 is welded to the upper face of the plate 18 and has a central bore 28 formed therein through which the pin 25 extends. A washer 29 is secured to the lower end of the pin 25 by bolts 30 extending upwardly therethrough.
A plurality of ballbearing rollers 31 of conventional design are interposed between the platform 23 and the raceway plate 27 to support the platform 23 above the plate 18 and to permit swiveling movement of the platform 23 with respect to the plate 18.
In the use and operation of the invention, an exceptionally long load, such as the stack of plywood, indicated generally at 32 in Figure l, is supported centrally on the platform 23 and moves with the lift truck 11 to the desired position. By having the platform 23 swivelly mounted on the plate 18, the load 32 can be turned with respect to the truck 11 to permit the load 32 to be moved through relatively narrow aisles, into and out of relatively narrow freight cars and into other positions wherein the lift truck 11 fails to have sufiicient maneuverability to otherwise handle exceptionally long loads.
Having thus described the preferred embodiment of the invention, it should be understood that numerous structural modifications and adaptations may be resorted to without departing from the scope of the appended claims.
What is claimed is:
1. A swivel attachment for lift trucks of the type including a pair of spaced parallel generally horizontal lifting forks having a pair of diametrically arranged ears formed integral with the adjacent inner edges of said lift forks, comprising a generally horizontal flat plate, a pair of longitudinally extending bars secured to the upper surface of said plate and extending outwardly beyond the side edges of said plate to engage the upper surface of said lift forks to retain said plate in operative relation to said forks, securing means extending through said plate and said ears to rigidly secure said plate on said lift forks, a transverse bar mounted on the undersurface of said plate and spaced therefrom by spacing blocks so that said transverse bar is mounted for engaging under said forks to support said plate between said forks, a generally rectangular platform centrally overlying the outer end of said plate, and means swivelly supporting said platform on said plate.
2. A device as claimed in claim 1 wherein said last named means includes anti-friction bearing means supporting said platform on said plate.
3. A device as claimed in claim 1 wherein said platform is provided with an upstanding flange extending across one end edge thereof and rigidly secured thereto.
References Cited in the file of this patent UNITED STATES PATENTS 2,410,373 Westervelt Oct. 29, 1946
US819653A 1959-06-11 1959-06-11 Lift truck Expired - Lifetime US2957594A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US819653A US2957594A (en) 1959-06-11 1959-06-11 Lift truck

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US819653A US2957594A (en) 1959-06-11 1959-06-11 Lift truck

Publications (1)

Publication Number Publication Date
US2957594A true US2957594A (en) 1960-10-25

Family

ID=25228696

Family Applications (1)

Application Number Title Priority Date Filing Date
US819653A Expired - Lifetime US2957594A (en) 1959-06-11 1959-06-11 Lift truck

Country Status (1)

Country Link
US (1) US2957594A (en)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3180513A (en) * 1963-07-09 1965-04-27 Wal Tuenis Vander Attachment for fork-lift trucks
US3329292A (en) * 1965-03-11 1967-07-04 Clark Equipment Co Laterally movable platform for a lift truck
US3489305A (en) * 1967-07-10 1970-01-13 Joseph L Palmateer Gear handling device
US3556328A (en) * 1968-09-27 1971-01-19 Ray P Miles Lift truck attachment
FR2104949A1 (en) * 1970-09-09 1972-04-28 Miles Raymond
US4274794A (en) * 1979-10-29 1981-06-23 Cascade Corporation Lift truck having rotatable platen for handling unpalletized loads and method for using same
US4370086A (en) * 1979-08-15 1983-01-25 Barry Leonard D Rotary loader and side coupling system
US4482286A (en) * 1983-05-09 1984-11-13 Cascade Corporation Forklift truck push-pull slipsheet handler for facilitating conversion of truck between slipsheet handling and pallet handling capabilities
US4519737A (en) * 1983-02-07 1985-05-28 Barry Leonard D Rotary loader and side-coupling transfer system
US4624620A (en) * 1983-05-09 1986-11-25 Cascade Corporation Forklift truck push-pull slipsheet handler for facilitating conversion of truck between slipsheet handling and pallet handling capabilities
US4708575A (en) * 1983-05-09 1987-11-24 Cascade Corporation Forklift truck push-pull slipsheet handler for facilitating conversion of truck between slipsheet handling and pallet handling capabilities
US4755099A (en) * 1986-10-17 1988-07-05 The Dow Chemical Company Pivoting load table for forklift
US4828450A (en) * 1985-01-16 1989-05-09 Brudi Equipment, Inc. Universal fork-supported push-pull slip sheet handling attachment for forklift trucks
US4890973A (en) * 1985-01-16 1990-01-02 Brudi Equipment, Inc. Universal fork-supported push-pull slip sheet handling attachment for forklift trucks
DE4330836A1 (en) * 1993-09-11 1994-03-17 Joachim Rempfer Ball mounted mechanism for forklift truck - facilitates handling and transport of very large, heavy loads
US5316433A (en) * 1992-02-21 1994-05-31 Loron, Inc. Low profile push-pull slipsheet handler
US6530580B1 (en) 1999-05-12 2003-03-11 John Edward Simpson Suspension assembly related application
US20030221914A1 (en) * 2002-05-28 2003-12-04 Smith Paul L. Portable lift for rack mounting equipment
US20190119086A1 (en) * 2015-12-03 2019-04-25 The Boeing Company Modular powered mover attachment
US11193287B2 (en) * 2016-09-23 2021-12-07 Sh Technologies Pte Ltd Construction system and method
US20230219795A1 (en) * 2020-06-25 2023-07-13 Norden Mfg Llc Method and apparatus for moving objects

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2410373A (en) * 1944-04-07 1946-10-29 Nat Fireworks Inc Revolving crane accessory for fork trucks

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2410373A (en) * 1944-04-07 1946-10-29 Nat Fireworks Inc Revolving crane accessory for fork trucks

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3180513A (en) * 1963-07-09 1965-04-27 Wal Tuenis Vander Attachment for fork-lift trucks
US3329292A (en) * 1965-03-11 1967-07-04 Clark Equipment Co Laterally movable platform for a lift truck
US3489305A (en) * 1967-07-10 1970-01-13 Joseph L Palmateer Gear handling device
US3556328A (en) * 1968-09-27 1971-01-19 Ray P Miles Lift truck attachment
FR2104949A1 (en) * 1970-09-09 1972-04-28 Miles Raymond
US4370086A (en) * 1979-08-15 1983-01-25 Barry Leonard D Rotary loader and side coupling system
US4274794A (en) * 1979-10-29 1981-06-23 Cascade Corporation Lift truck having rotatable platen for handling unpalletized loads and method for using same
US4519737A (en) * 1983-02-07 1985-05-28 Barry Leonard D Rotary loader and side-coupling transfer system
US4708575A (en) * 1983-05-09 1987-11-24 Cascade Corporation Forklift truck push-pull slipsheet handler for facilitating conversion of truck between slipsheet handling and pallet handling capabilities
US4624620A (en) * 1983-05-09 1986-11-25 Cascade Corporation Forklift truck push-pull slipsheet handler for facilitating conversion of truck between slipsheet handling and pallet handling capabilities
US4482286A (en) * 1983-05-09 1984-11-13 Cascade Corporation Forklift truck push-pull slipsheet handler for facilitating conversion of truck between slipsheet handling and pallet handling capabilities
US4828450A (en) * 1985-01-16 1989-05-09 Brudi Equipment, Inc. Universal fork-supported push-pull slip sheet handling attachment for forklift trucks
US4890973A (en) * 1985-01-16 1990-01-02 Brudi Equipment, Inc. Universal fork-supported push-pull slip sheet handling attachment for forklift trucks
US4755099A (en) * 1986-10-17 1988-07-05 The Dow Chemical Company Pivoting load table for forklift
US5316433A (en) * 1992-02-21 1994-05-31 Loron, Inc. Low profile push-pull slipsheet handler
DE4330836A1 (en) * 1993-09-11 1994-03-17 Joachim Rempfer Ball mounted mechanism for forklift truck - facilitates handling and transport of very large, heavy loads
US6530580B1 (en) 1999-05-12 2003-03-11 John Edward Simpson Suspension assembly related application
US20030221914A1 (en) * 2002-05-28 2003-12-04 Smith Paul L. Portable lift for rack mounting equipment
US20190119086A1 (en) * 2015-12-03 2019-04-25 The Boeing Company Modular powered mover attachment
US10807848B2 (en) * 2015-12-03 2020-10-20 The Boeing Company Modular powered mover attachment
US11193287B2 (en) * 2016-09-23 2021-12-07 Sh Technologies Pte Ltd Construction system and method
US20230219795A1 (en) * 2020-06-25 2023-07-13 Norden Mfg Llc Method and apparatus for moving objects

Similar Documents

Publication Publication Date Title
US2957594A (en) Lift truck
US4015686A (en) Portable multi-stage mechanical list
US3007592A (en) Hoist attachment for fork lift trucks
US3561628A (en) Load handling in fork-lift trucks movable fork cover for forklift truck
US2271624A (en) Load handling mechanism for industrial trucks
US5692583A (en) Handling device for railway wheel assemblies
US3220698A (en) High lift trailer
US3497090A (en) Combined battery case and counterweight
US3387731A (en) Fork truck
US2598151A (en) Lift truck
US3172501A (en) Portable lift
US2947513A (en) Hydraulic bumper jack
US1830998A (en) Freight handling skid
US2687310A (en) Mobile sheet rack
US4099695A (en) Trailer safety stand
DE3224817A1 (en) METHOD FOR SWIVELING A LOAD UNIT ABOVE AN ESSENTIAL VERTICAL AXIS AND DEVICE FOR CARRYING OUT THIS METHOD
US2082663A (en) Sliding reach and sleeve for truck beds
US2693250A (en) Fork truck having adjustable counterweight
US2819811A (en) Extendible fork truck
EP0346292A1 (en) A self-propelled lift truck, in particular for handling palletized loads
US2855071A (en) Industrial trucks
US2890849A (en) Pallet for straddle type fork lift truck
US3105604A (en) Pallet handling device
US3091195A (en) Pallet superstructure
US2925921A (en) Pallet stack supproting frames