WO2000003942A3 - Lowering brake device for hydraulic elevating platforms - Google Patents
Lowering brake device for hydraulic elevating platforms Download PDFInfo
- Publication number
- WO2000003942A3 WO2000003942A3 PCT/DE1999/002166 DE9902166W WO0003942A3 WO 2000003942 A3 WO2000003942 A3 WO 2000003942A3 DE 9902166 W DE9902166 W DE 9902166W WO 0003942 A3 WO0003942 A3 WO 0003942A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- working platform
- lowering
- lowering valve
- brake device
- hydraulic elevating
- Prior art date
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
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/08—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated
-
- 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
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/0641—Single levers, e.g. parallel links
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Braking Arrangements (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Lifting Devices For Agricultural Implements (AREA)
Abstract
The invention relates to a lowering brake device for a hydraulic elevating platform, wherein the working platform (2) is moved by a parallel suspension arm arrangement and the position of the lowering valve (21) is decoupled from the position of the control pedal (19) for the lowering valve (21) when the working platform (2) is being lowered by opening the lowering valve (21) of the hydraulic cylinder (4). In order to throttle the lowering speed of the working platform (2) when the lower resting position of the working platform (2) is reached, the position of the lowering valve (21) is regulated depending on the altitude of the working platform (2) thereby complying with safety requirements. Opening of the lowering valve (21) is controlled by a regulating shaft (17) which regulates the opened state of the lowering valve (21) depending on the altitude of the working platform (2).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19831546.5 | 1998-07-14 | ||
DE1998131546 DE19831546C1 (en) | 1998-07-14 | 1998-07-14 | Lowering brake device for hydraulic lifts |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000003942A2 WO2000003942A2 (en) | 2000-01-27 |
WO2000003942A3 true WO2000003942A3 (en) | 2000-09-21 |
Family
ID=7874017
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1999/002166 WO2000003942A2 (en) | 1998-07-14 | 1999-07-13 | Lowering brake device for hydraulic elevating platforms |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE19831546C1 (en) |
WO (1) | WO2000003942A2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10026037A1 (en) * | 2000-05-25 | 2001-12-06 | Hein Gericke Gmbh | Lifting device especially for motorcycles under repair has rotatably mounted locking pawl and toothed rack rotating with lifting frame, and lock is mechanically released by operating element on drive |
DE102008039224A1 (en) * | 2008-08-20 | 2010-03-04 | Mhg Gmbh | flat Lifter |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2055754A (en) * | 1979-08-08 | 1981-03-11 | Inst Produktudvikling | An actuator mechanism for lifting and lowering the supporting surface of piece of furniture, such as a bed or chair, having a locking mechanism for maintaining the supporting surface in a vertical position obtained by means of the actuator mechanism |
DE29719926U1 (en) * | 1997-11-10 | 1998-02-26 | Lehnert, Rudolf, 86529 Schrobenhausen | Mechanical height adjustment of hand-operated motorcycle lifts |
DE29817350U1 (en) * | 1998-07-14 | 1999-04-08 | Lehnert, Rudolf, 86529 Schrobenhausen | Lowering brake device for hydraulic lifts |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE6916660U (en) * | 1969-04-25 | 1969-10-09 | Ver Flugtechnische Werke | DEVICE FOR DAMPING THE IN AND OUT MOVEMENT OF HYDRAULICALLY OPERATED LIFTING TABLES |
-
1998
- 1998-07-14 DE DE1998131546 patent/DE19831546C1/en not_active Expired - Fee Related
-
1999
- 1999-07-13 WO PCT/DE1999/002166 patent/WO2000003942A2/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2055754A (en) * | 1979-08-08 | 1981-03-11 | Inst Produktudvikling | An actuator mechanism for lifting and lowering the supporting surface of piece of furniture, such as a bed or chair, having a locking mechanism for maintaining the supporting surface in a vertical position obtained by means of the actuator mechanism |
DE29719926U1 (en) * | 1997-11-10 | 1998-02-26 | Lehnert, Rudolf, 86529 Schrobenhausen | Mechanical height adjustment of hand-operated motorcycle lifts |
DE29817350U1 (en) * | 1998-07-14 | 1999-04-08 | Lehnert, Rudolf, 86529 Schrobenhausen | Lowering brake device for hydraulic lifts |
Also Published As
Publication number | Publication date |
---|---|
WO2000003942A2 (en) | 2000-01-27 |
DE19831546C1 (en) | 2000-05-11 |
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