GB1457974A - Mast for a lift truck - Google Patents
Mast for a lift truckInfo
- Publication number
- GB1457974A GB1457974A GB590874A GB590874A GB1457974A GB 1457974 A GB1457974 A GB 1457974A GB 590874 A GB590874 A GB 590874A GB 590874 A GB590874 A GB 590874A GB 1457974 A GB1457974 A GB 1457974A
- Authority
- GB
- United Kingdom
- Prior art keywords
- members
- elongate
- flanges
- channel
- elongate members
- 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
Links
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
- B66F9/08—Masts; Guides; Chains
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49636—Process for making bearing or component thereof
- Y10T29/49641—Linear bearing
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)
Abstract
1457974 Elevation guides TOWMOTOR CORP 8 Feb 1974 [8 Feb 1973] 05908/74 Heading B8L A telescopic mast assembly on a fork lift truck comprises a pair of elongate members 44, 46 slidable within a pair of fixed upright channel base members 24, 26, the elongate members 44, 46 each having only one edge flange 52, 56 extending towards the adjacent channel member and between edge flanges thereof. Bottom rollers 58, 62 mounted at the lower ends of the elongate members and top rollers 66, 70 mounted at the upper ends of the channel members engage the adjacent channel members and elongate members respectively during telescopic movement of the mast, the single flanges 52, 56 on the elongate members and the front flanges 34, 40 on the channel members being cut away in the vicinity of the respective rollers. The junction of the flanges 52, 56 and 36, 42 with the elongate and channel members, are angled 78, 80, 74, 76 for roller engagement. A load lifting carriage 82 movable up and down the elongate members 44, 46 of the mast engages the members 44, 46 through stabilizing rollers 96, 100, 104, 106 mounted on the carriage 82.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00330890A US3851732A (en) | 1973-02-08 | 1973-02-08 | Mast and carriage for a lift truck |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1457974A true GB1457974A (en) | 1976-12-08 |
Family
ID=23291746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB590874A Expired GB1457974A (en) | 1973-02-08 | 1974-02-08 | Mast for a lift truck |
Country Status (5)
Country | Link |
---|---|
US (1) | US3851732A (en) |
BE (1) | BE810617A (en) |
CA (1) | CA1002905A (en) |
FR (1) | FR2274545A1 (en) |
GB (1) | GB1457974A (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES430087A1 (en) * | 1973-09-07 | 1976-10-16 | Cubic Handling Systems Nv | Movable stacking device |
US3999267A (en) * | 1975-09-22 | 1976-12-28 | Towmotor Corporation | Method for assembling a lift truck mast |
US4124104A (en) * | 1976-04-14 | 1978-11-07 | Towmotor Corporation | Lift mask carriage mounting arrangement |
EP0113711A1 (en) * | 1982-06-25 | 1984-07-25 | Towmotor Corporation | High-visibility mast assembly for lift trucks |
JPS606598A (en) * | 1983-06-27 | 1985-01-14 | 小松フオ−クリフト株式会社 | Mast device |
SE460116B (en) * | 1985-02-01 | 1989-09-11 | Jungheinrich Kg | TRANSPORTDON, IN PARTICULAR STACKING VEHICLE |
US5145034A (en) * | 1988-12-08 | 1992-09-08 | Hyster Company | Lift truck fork carriage |
US5326217A (en) * | 1990-09-24 | 1994-07-05 | Clark Material Handling Company | Lift truck with negative drop upright |
US5320197A (en) * | 1993-02-19 | 1994-06-14 | Clark Material Handling Company | Sextuple upright |
US5515945A (en) * | 1994-04-18 | 1996-05-14 | Genie Industries, Inc. | Multi-stage mast assembly for portable lifts |
US20030057027A1 (en) * | 2001-09-21 | 2003-03-27 | Simpson Stan J. | Mast for a fork lift |
US7195105B2 (en) * | 2004-06-21 | 2007-03-27 | Tygard Machine & Manufacturing Company | Lift truck |
US10329130B2 (en) * | 2013-11-05 | 2019-06-25 | Hyster-Yale Group, Inc. | Lift chain tension relieving devices and methods |
CN108689350B (en) * | 2017-03-30 | 2021-06-08 | 雷蒙德股份有限公司 | Extendable mast system and method for a materials handling vehicle |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2456320A (en) * | 1947-02-24 | 1948-12-14 | Ross Carrier Company | Lift truck |
US2643162A (en) * | 1950-08-01 | 1953-06-23 | Roller Bearing Company | Antifriction carriage roller |
US2936047A (en) * | 1957-10-16 | 1960-05-10 | Yale & Towne Mfg Co | Lift truck |
US3506092A (en) * | 1967-07-14 | 1970-04-14 | Toyoda Automatic Loom Works | Lift truck |
US3556247A (en) * | 1967-11-07 | 1971-01-19 | Toyoda Automatic Loom Works | Lift truck |
-
1973
- 1973-02-08 US US00330890A patent/US3851732A/en not_active Expired - Lifetime
-
1974
- 1974-01-08 CA CA189,672A patent/CA1002905A/en not_active Expired
- 1974-02-05 BE BE140554A patent/BE810617A/en unknown
- 1974-02-07 FR FR7404169A patent/FR2274545A1/en active Granted
- 1974-02-08 GB GB590874A patent/GB1457974A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3851732A (en) | 1974-12-03 |
BE810617A (en) | 1974-08-05 |
CA1002905A (en) | 1977-01-04 |
FR2274545A1 (en) | 1976-01-09 |
FR2274545B1 (en) | 1978-10-20 |
AU6463474A (en) | 1975-07-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |