GB1376680A - Bridging member for ramps and the like - Google Patents
Bridging member for ramps and the likeInfo
- Publication number
- GB1376680A GB1376680A GB1839272A GB1839272A GB1376680A GB 1376680 A GB1376680 A GB 1376680A GB 1839272 A GB1839272 A GB 1839272A GB 1839272 A GB1839272 A GB 1839272A GB 1376680 A GB1376680 A GB 1376680A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- lever
- bridge
- pivoted
- april
- 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
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/28—Loading ramps; Loading docks
- B65G69/2805—Loading ramps; Loading docks permanently installed on the dock
- B65G69/2811—Loading ramps; Loading docks permanently installed on the dock pivoting ramps
- B65G69/2835—Loading ramps; Loading docks permanently installed on the dock pivoting ramps with spring-operated means
- B65G69/2841—Loading ramps; Loading docks permanently installed on the dock pivoting ramps with spring-operated means extensible by pivoting parts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Methods And Devices For Loading And Unloading (AREA)
Abstract
1376680 Dock loading bridge; counterbalancing K ALTEN 20 April 1972 [20 April 1971] 18392/72 Headings B8E and B8B A bridging plate 1 is hinged at 2 to a dock loading ramp 3 or similar structure and has a support lever 8 connected to a carriage 5 running on a guide 4 under the plate 1 and provided with counterbalancing springs 9. The support lever 8 is pivoted at 14 to two guide rods 10, 11 pivoted respectively to the plate 1 and ramp 3 so that the pivot 14 describes an arcuate path as the plate 1 is lowered helping to equate the support moment to the load moment throughout the descent. The springs 9 are preferably chosen so that equilibrium is achieved at the maximum lowering of the plate at 105 degrees from the vertical as determined by stops 25. A lever 20, Fig. 3, eccentrically pivoted at 21<SP>1</SP> engages a beam 6 of the carriage 5 to prevent lowering of the bridge until the lever 20 is manually moved in the direction 24. A minder mechanism 26 may be provided having a cable spring urged to wind up which may have a handle which can be grapsed to pull up the bridge plate.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712119056 DE2119056C3 (en) | 1971-04-20 | 1971-04-20 | Dock leveler for ramps and the like |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1376680A true GB1376680A (en) | 1974-12-11 |
Family
ID=5805210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1839272A Expired GB1376680A (en) | 1971-04-20 | 1972-04-20 | Bridging member for ramps and the like |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH537859A (en) |
DE (1) | DE2119056C3 (en) |
FR (1) | FR2133970B3 (en) |
GB (1) | GB1376680A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2190060A (en) * | 1986-05-08 | 1987-11-11 | Ratcliff Tail Lifts Ltd | Improvements in vehicle tail lifts |
GB2384226A (en) * | 2002-01-09 | 2003-07-23 | Alexander Wyllie | Counterbalanced platforms |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8812582U1 (en) * | 1988-10-06 | 1988-12-08 | Industrieberatung - Technischer Vertrieb Hecker - Gössl, 5354 Weilerswist | Dock leveller |
ES2035392T3 (en) * | 1989-02-24 | 1993-04-16 | Van Wijk Nederland B.V. | DRIVE MECHANISM FOR PASSAGE BRIDGES ON RAMPS. |
-
1971
- 1971-04-20 DE DE19712119056 patent/DE2119056C3/en not_active Expired
-
1972
- 1972-04-19 CH CH576072A patent/CH537859A/en not_active IP Right Cessation
- 1972-04-20 GB GB1839272A patent/GB1376680A/en not_active Expired
- 1972-04-20 FR FR7214023A patent/FR2133970B3/fr not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2190060A (en) * | 1986-05-08 | 1987-11-11 | Ratcliff Tail Lifts Ltd | Improvements in vehicle tail lifts |
GB2190060B (en) * | 1986-05-08 | 1989-11-29 | Ratcliff Tail Lifts Ltd | Improvements in vehicle tail lifts |
GB2384226A (en) * | 2002-01-09 | 2003-07-23 | Alexander Wyllie | Counterbalanced platforms |
Also Published As
Publication number | Publication date |
---|---|
FR2133970B3 (en) | 1974-06-07 |
CH537859A (en) | 1973-06-15 |
DE2119056A1 (en) | 1973-01-18 |
FR2133970A3 (en) | 1972-12-01 |
DE2119056B2 (en) | 1980-02-28 |
DE2119056C3 (en) | 1980-10-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |