US2699880A - Roll grab for lift trucks - Google Patents
Roll grab for lift trucks Download PDFInfo
- Publication number
- US2699880A US2699880A US189513A US18951350A US2699880A US 2699880 A US2699880 A US 2699880A US 189513 A US189513 A US 189513A US 18951350 A US18951350 A US 18951350A US 2699880 A US2699880 A US 2699880A
- Authority
- US
- United States
- Prior art keywords
- roll
- mast
- arm
- column
- pintle
- 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
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
- B66F9/18—Load gripping or retaining means
Definitions
- This invention relates broadly to lift trucks and more specifically to improvements in mechanism for handling newsprint rolls.
- the majority of lift trucks in current use embody a mast mounted on the truck for limited tilting movement fore and aft, a slide mounted on the mast for reciprocative movement relative thereto, and a work-supporting carriage mounted on the slide for independent vertical movement.
- the roll grab mechanism is mounted on the carriage and is manipulated by the combined movement of the mast and carriage.
- the grab mechanism comprises a column secured to the carriage, an arm mounted thereon in normal relation thereto, a pintle depending therefrom for engagement in the core bushing in a paper roll, and a shoe on the lower end of the column for engagement with the base of the roll.
- the roll grab is designed to handle paper rolls which are in a vertical position, the operative cycle, therefore, comprising moving the vehicle into a confronting relation with the roll, lowering the carriage and tilting the mast downwardly, engaging the pintle in the core bushing of the paper roll, moving the vehicle forwardly and simultaneously tilting the mast rearwardly to introduce the shoe below the base of the roll and to effect the engagement of the shoe therewith, and elevating the carriage to the requisite carrying position.
- the roll may be cradled in the sleeve by tilting the mast to its maximum rearward position of adjustment, the upper support therefor has been found inadequate when the vehicle is driven over a rough surface or brought to a sudden stop.
- this difiiculty is eliminated by supporting the pintle in radlal spring-pressed relation with the roll and formmg the pintle with a reentrant angle in order to attain maximum frictional engagement thereof with the bushing.
- An object of the invention is to provide an adjustable locking mechanism for the column and arm to accommodate the use of the grab mechanism on rolls of different size.
- Another object of the invention is to provide a paper roll grab mechanism which may be attached to the carriage of a lift truck or dismantled therefrom w1th ease and dispatch.
- Fig. 1 is a side elevational view of a lift truck embody ing the improved paper roll grab mechanism
- Fig. 2 is a front elevational view thereof
- Fig. 3 is a side elevational view of a lift truck simllar to Fig. 1 but shown in actuated position;
- Fig. 4 is a transverse sectional view thereof, the section being taken on a plane indicated by the line 44 in Fig. 1;
- Fig. 5 is a longitudinal sectional view taken on lme 55 in Fig. 1.
- the vehicle chosen herein for the purpose of illustrating one of the environs within which ice the grab mechanism may be used comprises a body 10 mounted on wheels 11, a mast 12 mounted for pivotal movement on a fulcrum 13 adjacent the base of the mast, a slide 14 carried by the mast, and a carriage constructed for vertical reciprocative movement on the slide.
- the improved roll grab embodies a column 15 having a V block and horizontally disposed shoe 16 on the lower end thereof, a sleeve 17 mounted for vertical adjustment thereon, an arm 18 aflixed upon the sleeve in normal relation thereto, and a pintle 19 mounted in a collar 20 slidably engaged with the arm 18.
- the collar is urged inwardly by a helical spring 21 mounted. on the arm intermediate the outer face of the collar and inner face of a ring 22.
- the ring may be retained upon the arm by a nut or a shouldered plug 23, as shown, which is threaded into the end of the arm.
- the inner end of the collar 20 abuts a sleeve 24 mounted on the arm and united with the ring 22 by a pair of tie bars 25 preferably welded to the ring and sleeve in spaced parallel relation to each other.
- the upper face of the collar 20 has a key 26 welded thereon which is arranged for free sliding movement between the tie bars 25.
- the sleeves 17 and 24 are cross-drilled for the reception of pins 27 engageable in openings 28 in the column and arm respectively to accommodate the use of the clamping mechanism in paper rolls of variable length and diameter.
- the vehicle In operation, the vehicle is brought into confronting relation with the roll, then the carriage or slide 14 is lowered into position.
- the mast is next inclined forwardly (as illustrated in Fig. 1) and the vehicle slightly advanced to affect the introduction of the pintle into the bushing in the roll of newsprint or other cylindrical bodies. Further forward movement of the vehicle will place the shoe 16 beneath the edge of the lower face of the roll.
- the mast is then tilted rearwardly and the carriage or slide elevated to cradle the roll in the V block and facilitate the transportation thereof.
- the spring 21 will maintain a constant pressure of the pintle 19 against the bushing in the roll and thus prevent displacement thereof due to shock or vibration resulting from irregularities in the surface of the floor.
- a roll grab mechanism comprising a column secured to said slide, an arm releasably mounted on said column and normal thereto, a pintle reciprocably mounted on said arm for engagement with the upper end of said roll, resilient means for biasing said pintle toward said column, and a shoe on the lowermost end of said column for engagement with the lower end of said roll.
- a roll grab mechanism comprising a column secured to said slide, an arm mounted on said column, a pintle for engagement with said roll, mounting means on said arm for carrying the pintle, said pintle being reciprocable on the arm, a shoe on the lowermost end of said column for engagement with the lower end of said roll, and a resilient member on said means for biasing the pintle toward one end of its path of travel.
- a roll grab mechanism comprising a column secured to said slide, an arm releasably mounted on said column, a sleeve carried by said arm, a pair of spacedapart stops rigidly mounted on said arm, said sleeve being disposed for movement therebetween, a resilient member between one of said stops and the sleeve for biasing said sleeve toward the other stop, a pintle depending from said sleeve for engagement with the upper end of said roll, and a shoe on the lowermost end of said column for engagement with the lower end of said rollas the roll is lifted.
- a roll grab mechanism comprising a column secured to said slide, an arm mounted on said column, a pintle reciprocally mounted on said arm for engagement with the upper end of said roll, resilient means for biasing said pintle toward said column, and support means carried by the mast for engagement with the lower end of said roll.
- a roll grab mechanism comprising a column secured to said slide, an arm mounted on said column, a pintle reciprocally mounted on said arm for engagement with the upper end of said roll, resilient means for biasing said pintle toward said column, and support means on the lower end of said column for engagement with the lower end of said roll.
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Forklifts And Lifting Vehicles (AREA)
Description
Jan. 18, 1955 R. L. HAEHN ET AL Rom. GRAB FOR LIFT TRUCKS 2 Sheets-Sheet 1 Filed 00 11, 1950 INVENTORS P055671. HAEH/V apusrw E @4145 Jan. 18, 1955 R HAEHN ETAL INVENTORS 8055272. l/AEHN X DwT/N E DAVAS United States Patent ROLL GRAB FOR LIFT TRUCKS Robert L. Haehn, Euclid, and Dustin F. Davis, Parma,
Ohio, assignors to Towmotor Corporation, a corporation of Ohio Application October 11, 1950, Serial No. 189,513
Claims. (Cl. 214-654) This invention relates broadly to lift trucks and more specifically to improvements in mechanism for handling newsprint rolls.
The majority of lift trucks in current use embody a mast mounted on the truck for limited tilting movement fore and aft, a slide mounted on the mast for reciprocative movement relative thereto, and a work-supporting carriage mounted on the slide for independent vertical movement. In the present invention the roll grab mechanism is mounted on the carriage and is manipulated by the combined movement of the mast and carriage. In detail, the grab mechanism comprises a column secured to the carriage, an arm mounted thereon in normal relation thereto, a pintle depending therefrom for engagement in the core bushing in a paper roll, and a shoe on the lower end of the column for engagement with the base of the roll. The roll grab is designed to handle paper rolls which are in a vertical position, the operative cycle, therefore, comprising moving the vehicle into a confronting relation with the roll, lowering the carriage and tilting the mast downwardly, engaging the pintle in the core bushing of the paper roll, moving the vehicle forwardly and simultaneously tilting the mast rearwardly to introduce the shoe below the base of the roll and to effect the engagement of the shoe therewith, and elevating the carriage to the requisite carrying position. Although the roll may be cradled in the sleeve by tilting the mast to its maximum rearward position of adjustment, the upper support therefor has been found inadequate when the vehicle is driven over a rough surface or brought to a sudden stop. In the present invention this difiiculty is eliminated by supporting the pintle in radlal spring-pressed relation with the roll and formmg the pintle with a reentrant angle in order to attain maximum frictional engagement thereof with the bushing.
An object of the invention is to provide an adjustable locking mechanism for the column and arm to accommodate the use of the grab mechanism on rolls of different size.
Another object of the invention is to provide a paper roll grab mechanism which may be attached to the carriage of a lift truck or dismantled therefrom w1th ease and dispatch.
Further objects of the invention reside in the provision of the roll grab which is sturdy of structure, relatively light in weight, efficient of operation, and susceptible of use in the hands of an operator untutored 1n the use thereof.
Other objects and advantages more or less anclllary to the foregoing, and the manner in which all the various objects are realized will appear in the following description, which, considered in connection with the accompanying drawings, sets forth the preferred embodiment of the invention.
Referring to the drawings:
Fig. 1 is a side elevational view of a lift truck embody ing the improved paper roll grab mechanism;
Fig. 2 is a front elevational view thereof;
Fig. 3 is a side elevational view of a lift truck simllar to Fig. 1 but shown in actuated position;
Fig. 4 is a transverse sectional view thereof, the section being taken on a plane indicated by the line 44 in Fig. 1; and
Fig. 5 is a longitudinal sectional view taken on lme 55 in Fig. 1.
Referring to Fig. l, the vehicle chosen herein for the purpose of illustrating one of the environs within which ice the grab mechanism may be used comprises a body 10 mounted on wheels 11, a mast 12 mounted for pivotal movement on a fulcrum 13 adjacent the base of the mast, a slide 14 carried by the mast, and a carriage constructed for vertical reciprocative movement on the slide.
The improved roll grab embodies a column 15 having a V block and horizontally disposed shoe 16 on the lower end thereof, a sleeve 17 mounted for vertical adjustment thereon, an arm 18 aflixed upon the sleeve in normal relation thereto, and a pintle 19 mounted in a collar 20 slidably engaged with the arm 18. The collar is urged inwardly by a helical spring 21 mounted. on the arm intermediate the outer face of the collar and inner face of a ring 22. The ring may be retained upon the arm by a nut or a shouldered plug 23, as shown, which is threaded into the end of the arm. The inner end of the collar 20 abuts a sleeve 24 mounted on the arm and united with the ring 22 by a pair of tie bars 25 preferably welded to the ring and sleeve in spaced parallel relation to each other. The upper face of the collar 20 has a key 26 welded thereon which is arranged for free sliding movement between the tie bars 25. The sleeves 17 and 24 are cross-drilled for the reception of pins 27 engageable in openings 28 in the column and arm respectively to accommodate the use of the clamping mechanism in paper rolls of variable length and diameter.
In operation, the vehicle is brought into confronting relation with the roll, then the carriage or slide 14 is lowered into position. The mast is next inclined forwardly (as illustrated in Fig. 1) and the vehicle slightly advanced to affect the introduction of the pintle into the bushing in the roll of newsprint or other cylindrical bodies. Further forward movement of the vehicle will place the shoe 16 beneath the edge of the lower face of the roll. The mast is then tilted rearwardly and the carriage or slide elevated to cradle the roll in the V block and facilitate the transportation thereof. During the translation of the vehicle, the spring 21 will maintain a constant pressure of the pintle 19 against the bushing in the roll and thus prevent displacement thereof due to shock or vibration resulting from irregularities in the surface of the floor.
Although the foregoing description is necessarily of a detailed character, in order that the invention may be 7 completely set forth, it is to be understood that the specifie terminology is not intended to be restrictive or confining, and that various rearrangements of parts and modifications of detail may be resorted to without departing from the scope or spirit of the invention as herein claimed.
What is claimed is:
1. In a lift truck having a mast mounted for tilting movement fore and aft, a slide mounted on the mast for movement relative thereto, a roll grab mechanism comprising a column secured to said slide, an arm releasably mounted on said column and normal thereto, a pintle reciprocably mounted on said arm for engagement with the upper end of said roll, resilient means for biasing said pintle toward said column, and a shoe on the lowermost end of said column for engagement with the lower end of said roll.
2. In a lift truck having a mast mounted for tilting movement fore and aft, a slide mounted on the mast for movement relative thereto, a roll grab mechanism comprising a column secured to said slide, an arm mounted on said column, a pintle for engagement with said roll, mounting means on said arm for carrying the pintle, said pintle being reciprocable on the arm, a shoe on the lowermost end of said column for engagement with the lower end of said roll, and a resilient member on said means for biasing the pintle toward one end of its path of travel.
3. In a lift truck for rolls of news print paper having a mast mounted for tilting movement fore and aft, a slide mounted on the mast for movement relative thereto, a roll grab mechanism comprising a column secured to said slide, an arm releasably mounted on said column, a sleeve carried by said arm, a pair of spacedapart stops rigidly mounted on said arm, said sleeve being disposed for movement therebetween, a resilient member between one of said stops and the sleeve for biasing said sleeve toward the other stop, a pintle depending from said sleeve for engagement with the upper end of said roll, and a shoe on the lowermost end of said column for engagement with the lower end of said rollas the roll is lifted.
4. In a lift truck having a mast mounted for tilting movement fore and aft, a slide mounted on the mast for movement relative thereto, a roll grab mechanism comprising a column secured to said slide, an arm mounted on said column, a pintle reciprocally mounted on said arm for engagement with the upper end of said roll, resilient means for biasing said pintle toward said column, and support means carried by the mast for engagement with the lower end of said roll.
5. In a lift truck having a mast mounted for tilting movement fore and aft, a slide mounted on the mast for movement relative thereto, a roll grab mechanism comprising a column secured to said slide, an arm mounted on said column, a pintle reciprocally mounted on said arm for engagement with the upper end of said roll, resilient means for biasing said pintle toward said column, and support means on the lower end of said column for engagement with the lower end of said roll.
References Cited in the file of this patent UNITED STATES PATENTS 1,276,799 Northrup et a1 Aug. 27, 1918 1,377,865 Weber May 10, 1921 1,439,228 Cochran Dec. 19, 1922 1,866,887 Gleason et a1 July 12, 1932 1,887,134 Johancen et a1. Nov. 8, 1932 2,379,587 Moore July 3, 1945 2,566,863 Voigt Sept. 4, 1951 2,578,802 Heidrick et a1. Dec. 18, 1951 2,587,769 Rowe Mar. 4, 1952 2,593,820 Weiss Apr. 22, 1952 2,598,515 Dickson May 27, 1952
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US189513A US2699880A (en) | 1950-10-11 | 1950-10-11 | Roll grab for lift trucks |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US189513A US2699880A (en) | 1950-10-11 | 1950-10-11 | Roll grab for lift trucks |
Publications (1)
Publication Number | Publication Date |
---|---|
US2699880A true US2699880A (en) | 1955-01-18 |
Family
ID=22697643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US189513A Expired - Lifetime US2699880A (en) | 1950-10-11 | 1950-10-11 | Roll grab for lift trucks |
Country Status (1)
Country | Link |
---|---|
US (1) | US2699880A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3434611A (en) * | 1966-04-01 | 1969-03-25 | Hugo V Ferrari | Sleeve extension adapter |
US4281961A (en) * | 1978-09-13 | 1981-08-04 | Mathewson Corporation | Coil transfer apparatus |
US4531771A (en) * | 1982-03-22 | 1985-07-30 | William M. Kinney | Rug puller |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1276799A (en) * | 1917-02-23 | 1918-08-27 | Burton Ashley Northrup | Industrial truck. |
US1377865A (en) * | 1921-05-10 | Tbuck | ||
US1439228A (en) * | 1921-08-19 | 1922-12-19 | Elwell Parker Electric Co | Load-securing means for industrial trucks |
US1866887A (en) * | 1929-04-30 | 1932-07-12 | Meredith Publishing Company | Truck construction |
US1887134A (en) * | 1930-10-17 | 1932-11-08 | Catherine Kehoe | Truck for handling rolls of newsprint paper |
US2379587A (en) * | 1944-04-20 | 1945-07-03 | Robert D Moore | Wheel-mounting dolly |
US2566863A (en) * | 1948-07-06 | 1951-09-04 | Geuder Paeschke & Frey Co | Load retaining means for industrial vehicles |
US2578802A (en) * | 1948-12-06 | 1951-12-18 | Fred C Heidrick | Material handling industrial truck |
US2587769A (en) * | 1948-04-05 | 1952-03-04 | Rowe Warehouse & Fertilizer Co | Bale stacking and unstacking machine |
US2593820A (en) * | 1949-02-19 | 1952-04-22 | Weiss Samuel | Attachment for industrial trucks |
US2598515A (en) * | 1948-11-17 | 1952-05-27 | Terminal Warehouse Company | Lift truck and attachment therefor |
-
1950
- 1950-10-11 US US189513A patent/US2699880A/en not_active Expired - Lifetime
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1377865A (en) * | 1921-05-10 | Tbuck | ||
US1276799A (en) * | 1917-02-23 | 1918-08-27 | Burton Ashley Northrup | Industrial truck. |
US1439228A (en) * | 1921-08-19 | 1922-12-19 | Elwell Parker Electric Co | Load-securing means for industrial trucks |
US1866887A (en) * | 1929-04-30 | 1932-07-12 | Meredith Publishing Company | Truck construction |
US1887134A (en) * | 1930-10-17 | 1932-11-08 | Catherine Kehoe | Truck for handling rolls of newsprint paper |
US2379587A (en) * | 1944-04-20 | 1945-07-03 | Robert D Moore | Wheel-mounting dolly |
US2587769A (en) * | 1948-04-05 | 1952-03-04 | Rowe Warehouse & Fertilizer Co | Bale stacking and unstacking machine |
US2566863A (en) * | 1948-07-06 | 1951-09-04 | Geuder Paeschke & Frey Co | Load retaining means for industrial vehicles |
US2598515A (en) * | 1948-11-17 | 1952-05-27 | Terminal Warehouse Company | Lift truck and attachment therefor |
US2578802A (en) * | 1948-12-06 | 1951-12-18 | Fred C Heidrick | Material handling industrial truck |
US2593820A (en) * | 1949-02-19 | 1952-04-22 | Weiss Samuel | Attachment for industrial trucks |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3434611A (en) * | 1966-04-01 | 1969-03-25 | Hugo V Ferrari | Sleeve extension adapter |
US4281961A (en) * | 1978-09-13 | 1981-08-04 | Mathewson Corporation | Coil transfer apparatus |
US4531771A (en) * | 1982-03-22 | 1985-07-30 | William M. Kinney | Rug puller |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4258826A (en) | Combination stepladder and load lifting apparatus | |
US1878994A (en) | Industrial truck | |
US2596477A (en) | Lift truck grab arm mechanism for cylindrical bodies | |
US2517085A (en) | Industrial truck | |
US2678746A (en) | Industrial lifting truck | |
US2582663A (en) | Industrial truck attachment | |
US2514825A (en) | Hand truck with lift platform | |
US2903147A (en) | Lifting and mounting device for outboard motors | |
US2506242A (en) | Vehicle mounted crane with load lifting accessory | |
US2513718A (en) | Power actuated elevating truck | |
US10894702B2 (en) | Vehicle lift system and vehicle dolly system | |
US2798729A (en) | Carrier for the transport of aircraft on the ground | |
US2545440A (en) | Hand truck | |
US2661927A (en) | Portable load lifter | |
US2699880A (en) | Roll grab for lift trucks | |
US3335879A (en) | Side carrying lift truck | |
US2068825A (en) | Industrial truck | |
US5544719A (en) | Lift truck for transferring reels to a user machine | |
US2614711A (en) | Barrel transporting device | |
US2584870A (en) | Attachment for fork lift trucks | |
EP0726224A2 (en) | Drum lifting and transporting device | |
GB1008918A (en) | Lifting truck | |
US1900528A (en) | Jack | |
US2120051A (en) | Rear axle block for automobile lifts | |
US2477871A (en) | Handling truck |