US2178647A - Lift truck - Google Patents

Lift truck Download PDF

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Publication number
US2178647A
US2178647A US198130A US19813038A US2178647A US 2178647 A US2178647 A US 2178647A US 198130 A US198130 A US 198130A US 19813038 A US19813038 A US 19813038A US 2178647 A US2178647 A US 2178647A
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Prior art keywords
extending
roller
frame
lift truck
pallet
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Expired - Lifetime
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US198130A
Inventor
George G Raymond
William C House
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LYON IRON WORKS
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LYON IRON WORKS
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Priority to US198130A priority Critical patent/US2178647A/en
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Publication of US2178647A publication Critical patent/US2178647A/en
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Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/04—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment
    • B62B3/06—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment for simply clearing the load from the ground
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/008—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor having more than two axes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2203/00—Grasping, holding, supporting the objects
    • B62B2203/20—Grasping, holding, supporting the objects using forks or tines
    • B62B2203/28—Guiding the forks into the pallets

Definitions

  • One primary object of this invention is the provision of an improved lift truck for use with two faced pallets wherein there is provided a simple means for facilitating the insertion of the fork of the truck between the two faces of the pallet;
  • An additional object is the provision in conjunction with an uncounterweighted lift truck having an extensible and retractible member adapted to be passed through an aperture in the lower face of a two faced pallet or adapted to extend completely through such .a pallet, of means whereby the fork may readily ride over the lower face of the pallet either upon being inserted between the two faces thereof or withdrawn therefrom.
  • a further and more specific object is the provision of a stepped means carried by the fork of a lift truck to substantially eliminate the necessity of lifting the end of the truck ofi of the floor to any extentwhen the same is passed over an edge of the lower face of a two faced pallet.
  • a still further object is the provision of a lift truck incorporating all the advantages mentioned in the above objects which may be readily used with a single faced pallet if desired.
  • a further object is the provision of a lift truck which may be readily used particularly in conjunction with a pallet of the type described in applicants co-pending application, Serial No. 164,541, filed September 18, 1937, entitled Pallet.
  • Figure l is a top elevational view of a preferred form of lift truck in accordance with the present invention.
  • Figure 2 is a side elevational view of the structure shown in Figure 1.
  • Figure 3 is a perspective view of a lift truck illustrated in Figures 1 and 2, shown as associated with a two-faced pallet.
  • brackets I5 is provided with roller means I! and the arrangement is such that upon actuation of lift mechanism 12 and consequently elevation of frame 10 with respect to wheel Ii, bracket i5 is swung about pivot 16 in a clockwise direction as viewed in Figure 2 to move extending portions l3 upwardly with respect to rollers I1 and the floor surface generally designated at F" in Figure 2.
  • Springs l8 serve normally to bias grackets l5 and rollers I 1 toward retracted posiso In the operation of such a lift truck, however, it has been found that, in order to maintain the thickness of extending portions l3- with such limits as to permit the ready passage between the 85 two faces of a two faced pallet either of the conventional type or the type disclosed in applicants above mentioned application entitled Pallet, rollers ll must extend a substantial distance below the bottom surface thereof, as shown in Figure 2. This under certain circumstances has hitherto necessitated a slight elevation of the end of the frame by the operator.
  • One object of this invention is, therefore, to provide a means whereby such elevation may be accomplished without material effort on the part of the operator and whereby the ends of the extending portions I! may be readily passed over the lower face of a pallet without occasioning any jar or bump to the truck mechanism.
  • extending members I 3 opposite lift mechanism l 2, generally indicated at 20 are provided with a plurality of members 2
  • Each of Each of low said extending portions a distance less than said first mentioned roller, a third roller positioned adjacent said second roller in a direction away from said lifting means and extending a still lesser distance below said extending portions, and a fourth roller extending below said extend ing portions a distance less than the first mentioned roller and positioned adjacent thereto in a direction toward said lifting means.
  • a frame lifting means carried by an end of said frame, extending portions comprising a part of said frame and adapted for insertion between the faces of a two faced pallet, extensible and retractible members carried by said portions, each of said members including a, roller and extending when in retracted position a given distance below'said extending portion, a second roller positioned adjacent said first mentioned roller in a direction away from said lifting means and extending below said extending portions a distance less than said first mentioned roller, a third roller positioned adjacent said second roller in a direction away from said -lifting means and extending a still lesser distance below said extending portions, a fourth roller extending below said frame a distance less than the first mentioned roller and positioned adjacent thereto in a direction toward said lifting means, and a fifth roller extending below said extending portions a less distance than said fourth mentioned roller and positioned adjacent thereto in a direction toward said lifting means.
  • a frame lifting means carried by ahead of said frame, extending portions comprising a part of said frame and adapted for insertion between the faces of a two faced pallet, extensible and retractible members carried by said portions, each of said members including a roller and extending when in retracted position a given distance below said extending portion, and a plurality of roller means extending a varying distance below said extending portions positioned adjacent said first mentioned roller means in a direction away from said lifting means, those of said rollers extending the least distance below said extending portions being situated at points more remote from said first mentioned roller than those of said roller means extending a greater distance.
  • a frame in combination, a frame, an extensible and retractible member carried by an end of said frame, means to extend and retract said member carried by one end of said frame and roller means carried by said frame and positioned adjacent said member in a direction towards said means to extend and retract said member.
  • frame including a. portion adapted to be inserted between the faces of a two faced pallet, means to elevate said frame, and extensible and retractible means adapted to extend into 'said pallet, for extension through or beyond the same, successive roller means so positioned as to provide successive relative slight lifting movement of the leading end of said portion to facilitate introduction of the said portion into. the space between said faces and successive roller means so positioned as to provide a relatively slight lifting movement of the end of said portions carrying said retractible and extensible means upon withdrawal of the same from said space.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Intermediate Stations On Conveyors (AREA)

Description

Nov. 7, 1939.1
G. G. RAYMOND ET AL LIFT TRUCK Filed March 35; 1958 0,5 mm mm W m Mm am a W A w my 6 W Patented Nov. 7, 1939 PATENT OFFICE um 'raUcx George- G. Raymond and William 0. House, Greene, N. Y., asaignora to Lyon Iron Works, a corporation of New York Application March 25, 1988, Serial No. 198,130 14 Claims. (Cl. 280-44) This invention relates to lift trucksaiid more particularly to the type of lift truck disclosed in applicants copending application, Serialglflo. 164,- 540, filed September 18, 1937, entitled lift truck adapted for use with a two faced pallet.
One primary object of this invention is the provision of an improved lift truck for use with two faced pallets wherein there is provided a simple means for facilitating the insertion of the fork of the truck between the two faces of the pallet;
An additional object is the provision in conjunction with an uncounterweighted lift truck having an extensible and retractible member adapted to be passed through an aperture in the lower face of a two faced pallet or adapted to extend completely through such .a pallet, of means whereby the fork may readily ride over the lower face of the pallet either upon being inserted between the two faces thereof or withdrawn therefrom.
. A further and more specific object is the provision of a stepped means carried by the fork of a lift truck to substantially eliminate the necessity of lifting the end of the truck ofi of the floor to any extentwhen the same is passed over an edge of the lower face of a two faced pallet.
A still further object is the provision of a lift truck incorporating all the advantages mentioned in the above objects which may be readily used with a single faced pallet if desired.
A further object is the provision of a lift truck which may be readily used particularly in conjunction with a pallet of the type described in applicants co-pending application, Serial No. 164,541, filed September 18, 1937, entitled Pallet.
Other objects will in part be obvious and in part pointed out hereinafter.
The invention accordingly consists in the combination of elements, arrangement of parts and features of construction all as will be more fully pointed out hereinafter and disclosed in the accompanying drawing wherein:
Figure l is a top elevational view of a preferred form of lift truck in accordance with the present invention.
Figure 2is a side elevational view of the structure shown in Figure 1.
Figure 3 is a perspective view of a lift truck illustrated in Figures 1 and 2, shown as associated with a two-faced pallet.
Similar reference characters refer to similar parts throughout the several views of the draw- Having reference now to the drawing there is generally indicated at It a lift truck frame provided with an elevating wheel ll adjacent one end thereof and suitable lifting mechanism I 2, only generally shown here but more clearly il- 5 lustrated in our copending application Ser. No. 164,540 above referred to, to elevate frame 10 with respect to wheel ll. Frame It is provided with a pair of extending portions I 3, which by reference to Figure 3, are adapted to be inserted 10 between the two faces of a two faced pallet, for example, of the type shown in applicants above mentioned co-pending application, Serial No. 164,541, entitled Pallet. Inasmuch as the two extending portions l3 are substantially identical 15 they will hereinafter not be individually described.
An axially movable rod 14 actuated by said lifting mechanism passes through each of extending portions l3 and is secured incagh case to a bracket l5 pivoted as on a pivot l6. brackets I5 is provided with roller means I! and the arrangement is such that upon actuation of lift mechanism 12 and consequently elevation of frame 10 with respect to wheel Ii, bracket i5 is swung about pivot 16 in a clockwise direction as viewed in Figure 2 to move extending portions l3 upwardly with respect to rollers I1 and the floor surface generally designated at F" in Figure 2. Springs l8 serve normally to bias grackets l5 and rollers I 1 toward retracted posiso In the operation of such a lift truck, however, it has been found that, in order to maintain the thickness of extending portions l3- with such limits as to permit the ready passage between the 85 two faces of a two faced pallet either of the conventional type or the type disclosed in applicants above mentioned application entitled Pallet, rollers ll must extend a substantial distance below the bottom surface thereof, as shown in Figure 2. This under certain circumstances has hitherto necessitated a slight elevation of the end of the frame by the operator.
One object of this invention is, therefore, to provide a means whereby such elevation may be accomplished without material effort on the part of the operator and whereby the ends of the extending portions I! may be readily passed over the lower face of a pallet without occasioning any jar or bump to the truck mechanism. In
. order that this may be accomplished the ends of extending members I 3 opposite lift mechanism l 2, generally indicated at 20, are provided with a plurality of members 2|, 2! and 23 extending longitudinally with respect thereto. Each of Each of low said extending portions a distance less than said first mentioned roller, a third roller positioned adjacent said second roller in a direction away from said lifting means and extending a still lesser distance below said extending portions, and a fourth roller extending below said extend ing portions a distance less than the first mentioned roller and positioned adjacent thereto in a direction toward said lifting means.
7. In a lift truck, in combination, a frame, lifting means carried by an end of said frame, extending portions comprising a part of said frame and adapted for insertion between the faces of a two faced pallet, extensible and retractible members carried by said portions, each of said members including a, roller and extending when in retracted position a given distance below'said extending portion, a second roller positioned adjacent said first mentioned roller in a direction away from said lifting means and extending below said extending portions a distance less than said first mentioned roller, a third roller positioned adjacent said second roller in a direction away from said -lifting means and extending a still lesser distance below said extending portions, a fourth roller extending below said frame a distance less than the first mentioned roller and positioned adjacent thereto in a direction toward said lifting means, and a fifth roller extending below said extending portions a less distance than said fourth mentioned roller and positioned adjacent thereto in a direction toward said lifting means.
a. in a lift truck, in combination, a frame, lifting means carried by an end of said frame, ex-
tending portions comprising a part of said frame and adapted for insertion between the faces of a two faced pallet, extensible and retractible mem-- bers carried by said portions, each of said mem= here including a roller and extendingwhen in retracted position a given distance below said extending portion, and a plurality of roller means extending varying distances below said extending portions positioned adjacent said first mentioned rollers, those of said roller means extending the least distance below said extending portions being situated at points more remote from said first mentioned roller than those of said roller means extending a greater distance.
9. In a lift truck, in combination, a frame, lifting means carried by ahead of said frame, extending portions comprising a part of said frame and adapted for insertion between the faces of a two faced pallet, extensible and retractible members carried by said portions, each of said members including a roller and extending when in retracted position a given distance below said extending portion, and a plurality of roller means extending a varying distance below said extending portions positioned adjacent said first mentioned roller means in a direction away from said lifting means, those of said rollers extending the least distance below said extending portions being situated at points more remote from said first mentioned roller than those of said roller means extending a greater distance.
10. In a lift truck, in combination, a frame, lifting means carried by an end of said frame, extending portions comprising a partof said frame and adapted for insertion between the faces of a two faced pallet, extensible and re=- tractible members carried by said portions, each of said members including a roller and extending when in retracted position a given distance below said extending portion, and a plurality of roller means extending a. varying distance below said extending portions positioned adjacent said first mentioned roller means in a direction toward said lifting means, those of said rollers extending the least distance below said extending portions being situated at points more remote from said first mentioned roller than those of said roller means extending a greater distance.
11. In a lift truck, in combination, a frame. lifting means carried by an end of said frame, extending portions comprising a part of said frame and adapted for insertion between the faces of a two faced pallet, extensible and retractible members carried by said portions, each of said members including a roller and extending when in retracted position a given distance below said extending portion, and a plurality of roller means extending a varying distance below said extending portions positioned adjacent said first mentioned roller in opposite directions from said first mentioned roller means with respect to said lifting means, those of said rollers extend= ing the least distance below said extending portions being situated at points more remote from said first mentioned roller than those of said roller means extending a greater distance.
12. In a lift truck, in combination, a frame, an extensible and retractible member carried by an end of said frame, means to extend and retract said member carried by one end of said frame and roller means carried by said frame and positioned adjacent said member in a direction towards said means to extend and retract said member.
13. In combination with a lift truck having a frame including a portion adapted to be insertecl between the faces of a two faced pallet, means to elevate said frame, and extensible and retractible means adapted to extend into said pallet, for extension through or beyond the same, successive roller means so positioned as to provide successive relative slight lifting movement of the leading end of saidportion to facilitate introduction of the said portion into the space between said faces.
14. In combination with a lift truck having a.
frame including a. portion adapted to be inserted between the faces of a two faced pallet, means to elevate said frame, and extensible and retractible means adapted to extend into 'said pallet, for extension through or beyond the same, successive roller means so positioned as to provide successive relative slight lifting movement of the leading end of said portion to facilitate introduction of the said portion into. the space between said faces and successive roller means so positioned as to provide a relatively slight lifting movement of the end of said portions carrying said retractible and extensible means upon withdrawal of the same from said space.
GEORGE a. RAYMOND. wnmu o. noose.
US198130A 1938-03-25 1938-03-25 Lift truck Expired - Lifetime US2178647A (en)

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462007A (en) * 1946-05-03 1949-02-15 Irvin F Schreck Auxiliary supporting roller arrangement for pallet trucks
US2522357A (en) * 1946-04-26 1950-09-12 Yale & Towne Mfg Co Lift truck
US2569190A (en) * 1946-12-27 1951-09-25 Int Harvester Co Bale handling vehicle
US2877982A (en) * 1956-08-31 1959-03-17 George J Davis Hydraulic pallet lift truck
US2968491A (en) * 1959-02-26 1961-01-17 Banner Metals Inc Warehouse pallet dolly
US3963257A (en) * 1975-03-31 1976-06-15 Brodie, Inc. Roll handling
US5356257A (en) * 1990-01-05 1994-10-18 N.C.H. Hydraulische Systemen B.V. Carriage for lifting and moving a container
US20050042069A1 (en) * 2002-02-12 2005-02-24 Tynecat Technologies Pty. Ltd. Transport trolley having pivotable roller housings
US20060125196A1 (en) * 2004-12-15 2006-06-15 Grand Steer Inc. Steering device for pallet truck
US8336913B1 (en) * 2009-05-07 2012-12-25 Grand Steer Inc. Steering device for pallet jack
US8752846B1 (en) * 2012-12-11 2014-06-17 Cascade Corporation Roller load support
US20140166951A1 (en) * 2012-10-15 2014-06-19 Om Carrelli Elevatori S.P.A. Industrial Truck With Load Rollers Located On Load Roller Carriers On A Wheelarm
US20140175350A1 (en) * 2012-10-15 2014-06-26 Om Carrelli Elevatori S.P.A. Industrial Truck With Load Rollers Located In Swiveling Load Roller Carriers
US10421474B2 (en) * 2016-06-02 2019-09-24 Toyota Material Handling Manufacturing Sweden Ab Lift-truck with automated climbing function
USD898324S1 (en) * 2018-08-30 2020-10-06 Shark Wheel, Inc. Pallet truck wheels
SE2051073A1 (en) * 2020-09-14 2022-03-15 Toyota Mat Handling Manufacturing Sweden Ab A support roller arrangement for a lift truck
US20240210177A1 (en) * 2022-12-23 2024-06-27 Brookhurst Garage, Inc. Topometric map based autonomous navigation for inventory drone
DE102023124341A1 (en) * 2023-09-08 2025-03-13 Jungheinrich Aktiengesellschaft Industrial truck with a drive and a load section and method for entering a closed pallet
AU2024204830A1 (en) * 2024-03-27 2025-10-16 Hyster-Yale Materials Handling, Inc. Auxiliary rollers for a fork of a forked materials-handling vehicle

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2522357A (en) * 1946-04-26 1950-09-12 Yale & Towne Mfg Co Lift truck
US2462007A (en) * 1946-05-03 1949-02-15 Irvin F Schreck Auxiliary supporting roller arrangement for pallet trucks
US2569190A (en) * 1946-12-27 1951-09-25 Int Harvester Co Bale handling vehicle
US2877982A (en) * 1956-08-31 1959-03-17 George J Davis Hydraulic pallet lift truck
US2968491A (en) * 1959-02-26 1961-01-17 Banner Metals Inc Warehouse pallet dolly
US3963257A (en) * 1975-03-31 1976-06-15 Brodie, Inc. Roll handling
US5356257A (en) * 1990-01-05 1994-10-18 N.C.H. Hydraulische Systemen B.V. Carriage for lifting and moving a container
US20050042069A1 (en) * 2002-02-12 2005-02-24 Tynecat Technologies Pty. Ltd. Transport trolley having pivotable roller housings
US20060125196A1 (en) * 2004-12-15 2006-06-15 Grand Steer Inc. Steering device for pallet truck
US7226060B2 (en) 2004-12-15 2007-06-05 Grand Steer Inc. Steering device for pallet truck
US20070284838A1 (en) * 2004-12-15 2007-12-13 Grand Steer Inc. Steering device for pallet truck
US20080042381A1 (en) * 2004-12-15 2008-02-21 Grand Steer Inc. Pallet jack
US7427075B2 (en) 2004-12-15 2008-09-23 Grand Steer Inc. Steering device for pallet truck
US7475887B2 (en) 2004-12-15 2009-01-13 Grand Steer Inc. Pallet jack
US8336913B1 (en) * 2009-05-07 2012-12-25 Grand Steer Inc. Steering device for pallet jack
US20140166951A1 (en) * 2012-10-15 2014-06-19 Om Carrelli Elevatori S.P.A. Industrial Truck With Load Rollers Located On Load Roller Carriers On A Wheelarm
US20140175350A1 (en) * 2012-10-15 2014-06-26 Om Carrelli Elevatori S.P.A. Industrial Truck With Load Rollers Located In Swiveling Load Roller Carriers
US9567197B2 (en) * 2012-10-15 2017-02-14 Om Carrelli Elevatori S.P.A. Industrial truck with load rollers located on load roller carriers on a wheelarm
US10005650B2 (en) * 2012-10-15 2018-06-26 Om Carrelli Elevatori S.P.A. Industrial truck with load rollers located in swiveling load roller carriers
US8752846B1 (en) * 2012-12-11 2014-06-17 Cascade Corporation Roller load support
US10421474B2 (en) * 2016-06-02 2019-09-24 Toyota Material Handling Manufacturing Sweden Ab Lift-truck with automated climbing function
USD898324S1 (en) * 2018-08-30 2020-10-06 Shark Wheel, Inc. Pallet truck wheels
SE2051073A1 (en) * 2020-09-14 2022-03-15 Toyota Mat Handling Manufacturing Sweden Ab A support roller arrangement for a lift truck
SE544748C2 (en) * 2020-09-14 2022-11-01 Toyota Mat Handling Manufacturing Sweden Ab A support roller arrangement for a lift truck and a fork lift truck
US20240210177A1 (en) * 2022-12-23 2024-06-27 Brookhurst Garage, Inc. Topometric map based autonomous navigation for inventory drone
US12474170B2 (en) * 2022-12-23 2025-11-18 Brookhurst Garage, Inc. Topometric map based autonomous navigation for inventory drone
DE102023124341A1 (en) * 2023-09-08 2025-03-13 Jungheinrich Aktiengesellschaft Industrial truck with a drive and a load section and method for entering a closed pallet
AU2024204830A1 (en) * 2024-03-27 2025-10-16 Hyster-Yale Materials Handling, Inc. Auxiliary rollers for a fork of a forked materials-handling vehicle

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