GB1395199A - Lifting gear - Google Patents
Lifting gearInfo
- Publication number
- GB1395199A GB1395199A GB4404772A GB4404772A GB1395199A GB 1395199 A GB1395199 A GB 1395199A GB 4404772 A GB4404772 A GB 4404772A GB 4404772 A GB4404772 A GB 4404772A GB 1395199 A GB1395199 A GB 1395199A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chains
- chain
- links
- mast
- section
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/18—Chains having special overall characteristics
- F16G13/20—Chains having special overall characteristics stiff; Push-pull chains
-
- 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
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/02—Devices, e.g. jacks, adapted for uninterrupted lifting of loads with racks actuated by pinions
- B66F3/06—Devices, e.g. jacks, adapted for uninterrupted lifting of loads with racks actuated by pinions with racks comprising pivotable toothed sections or segments, e.g. arranged in pairs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
1395199 Masted lift truck MIAG MUHLENBAU UND INDUSTRIE GmbH 22 Sept 1972 [22 Sept 1971] 44047/72 Heading B8H [Also in Division F2] A fork lift truck has a mast comprising a fixed section of a pair of spaced U-sectioned members 7 which guide a movable section of similar members 10 along which a lift carriage 15 is movable. The carriage 15 is connected to one end of a pair of semi-rigid chains 18, which are pivoted in one direction but not in the opposite direction, the other end of which are located in respective spiral storage magazines 17. Hydraulic motors 20 mounted on the fixed section of its mast are arranged to drive each chain to move the lift carriage along the movable section of the mast until an abutment thereon engages an upper cross-member 11 on the movable section to thereby raise said section relative to the fixed section. In a further embodiment, Fig. 5 (not shown), an hydraulic motor (20<SP>1</SP>) is mounted on the lift carriage 15 to move said carriage along racks (25) secured to the movable section of the mast and then along semi-rigid chains (18) connected to the upper end of each rack. The chains are stored in magazines (27) secured to the movable section. In a further embodiment, Fig. 8 (not shown), a pair of semi-rigid chains (18) are attached at one end to the lift carriage in back to back relation. Hydraulic motors (2011) are secured to the fixed section of the mast to erect or retract the chains, which are stored in magazines (37) secured to the fixed section of the mast and within portions of the movable section. The chains comprise a plurality of U-sectioned links (1) Fig. 1 (not shown) pivotally interconnected by ordinary links (2) whereby when the chain extends in a linear direction the ends of the web (1<SP>1</SP>) of the links (1) abut against each other to prevent pivoting of the chain in the direction of said webs. The pivotal connection (3<SP>11</SP>) between the lift carriage and the chain is offset from the plain of the pivot pins 3 of the chain to reduce any tendency of the chain to collapse. In the embodiment wherein the chains are arranged back-to-back the chains may comprise a series of long links (41) (43) (45) Fig. 9 (not shown) interconnected by intermediate links (47) (49) and inner short links (40). The long links have longitudinal extensions (43<SP>1</SP>) to abut adjacent pivot pins (33) to prevent the chain rotating in one direction whilst allowing rotation in the opposite direction and have lateral projection (43<SP>11</SP>) extending in the direction of an adjacent chain to engage pivot pins (33<SP>1</SP>) thereof to provide lateral stabilization of the chains.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712147186 DE2147186A1 (en) | 1971-09-22 | 1971-09-22 | LIFTING DEVICE |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1395199A true GB1395199A (en) | 1975-05-21 |
Family
ID=5820206
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4404772A Expired GB1395199A (en) | 1971-09-22 | 1972-09-22 | Lifting gear |
Country Status (5)
Country | Link |
---|---|
AT (1) | AT325512B (en) |
CH (1) | CH547225A (en) |
DE (1) | DE2147186A1 (en) |
FR (1) | FR2153303B3 (en) |
GB (1) | GB1395199A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU690759B2 (en) * | 1994-11-30 | 1998-04-30 | Endurequip Pty Ltd | Column hoists |
EP2320109A1 (en) * | 2009-11-05 | 2011-05-11 | Tsubakimoto Chain Co. | Engagement chain |
CN112847296A (en) * | 2021-01-05 | 2021-05-28 | 中科创达软件股份有限公司 | Flexible lifting device and robot chassis comprising same |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2491903A1 (en) * | 1980-10-15 | 1982-04-16 | Mecanismes Comp Ind De | Vehicle window operating mechanism - has push=pull cable wound inside spiral groove around motor-driven winding drum with cover |
DE59209119D1 (en) * | 1992-10-21 | 1998-02-12 | Weatherford Lamb | Load positioning device |
DE4334378C2 (en) * | 1993-10-08 | 1999-01-14 | Weatherford Oil Tool | Device for aligning hanging loads |
EP0799788A4 (en) * | 1994-12-19 | 1998-04-15 | Sanin Boruto Seisakusho Co Ltd | Rod-shaped extension body |
GB9617538D0 (en) | 1996-08-21 | 1996-10-02 | Weatherford Oil Tool | Positioning device |
CN202176674U (en) * | 2011-08-11 | 2012-03-28 | 上海西门子医疗器械有限公司 | Push chain, linear motion drive device and examination couch |
-
1971
- 1971-09-22 DE DE19712147186 patent/DE2147186A1/en active Pending
-
1972
- 1972-09-08 CH CH547225D patent/CH547225A/en not_active IP Right Cessation
- 1972-09-08 AT AT770172A patent/AT325512B/en not_active IP Right Cessation
- 1972-09-19 FR FR7233155A patent/FR2153303B3/fr not_active Expired
- 1972-09-22 GB GB4404772A patent/GB1395199A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU690759B2 (en) * | 1994-11-30 | 1998-04-30 | Endurequip Pty Ltd | Column hoists |
EP2320109A1 (en) * | 2009-11-05 | 2011-05-11 | Tsubakimoto Chain Co. | Engagement chain |
CN102052427A (en) * | 2009-11-05 | 2011-05-11 | 株式会社椿本链索 | Engagement chain |
US8500101B2 (en) | 2009-11-05 | 2013-08-06 | Tsubakimoto Chain Co. | Engagement chain |
CN102052427B (en) * | 2009-11-05 | 2014-10-15 | 株式会社椿本链索 | Engagement chain |
CN112847296A (en) * | 2021-01-05 | 2021-05-28 | 中科创达软件股份有限公司 | Flexible lifting device and robot chassis comprising same |
Also Published As
Publication number | Publication date |
---|---|
FR2153303A1 (en) | 1973-05-04 |
CH547225A (en) | 1974-03-29 |
FR2153303B3 (en) | 1975-10-17 |
DE2147186A1 (en) | 1973-03-29 |
AT325512B (en) | 1975-10-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |