EP0949194A2 - Teleskopausleger für Hubarbeitsbühnen - Google Patents
Teleskopausleger für Hubarbeitsbühnen Download PDFInfo
- Publication number
- EP0949194A2 EP0949194A2 EP98111555A EP98111555A EP0949194A2 EP 0949194 A2 EP0949194 A2 EP 0949194A2 EP 98111555 A EP98111555 A EP 98111555A EP 98111555 A EP98111555 A EP 98111555A EP 0949194 A2 EP0949194 A2 EP 0949194A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- telescopic
- supports
- cylinder
- another
- work platforms
- 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.)
- Withdrawn
Links
- 239000000969 carrier Substances 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
-
- 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
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
- B66F11/044—Working platforms suspended from booms
- B66F11/046—Working platforms suspended from booms of the telescoping type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/16—Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type
- F15B15/165—Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type with synchronisation of sections
Definitions
- the present invention relates to a telescopic boom for Aerial work platforms, especially for mobile and self-propelled Aerial work platforms, with several slidably arranged Telescopic carriers, with the outer telescopic carrier for receiving and guidance of the inner telescopic carrier serves and at least three of the inner telescopic supports are coupled with each other and are displaceable and form a telescopic support group, wherein at least the innermost two telescopic carriers over at least two chain or cable hoists are connected.
- Such a telescopic boom is known from DE 195 20 080 A1.
- the telescopic carrier system described therein is at least between a horizontal alignment and an almost one vertical position swiveling via an outer support supported and has at least three more, telescopically one below the other as well as slidable to the outer beam.
- To in critical locations a more favorable mass distribution in the whole
- To achieve the carrier system is known from the known carrier system the other carriers an inner carrier group formed from at least three mechanically synchronized coupled with each other Carriers exist and when approaching a critical load condition is controlled so that the inner carrier takes priority extended the entire carrier group before it is pushed out priority and / or the entire inner support group before inserting their two inner supports into the receiving ones Carrier is retracted.
- a disadvantage of this known carrier system is that on the one hand no arbitrary interpretation of the extension sequence possible and on the other hand the receiving carrier with the carrier group via an external, double-acting cylinder in Active connection is established.
- this cylinder By arranging this cylinder on The outer circumference of the outer carrier results in an increased space requirement for the well-known carrier system. In addition, by the arrangement this cylinder is very risk of damage high.
- This ensures that at high telescopic extension forces in the horizontal boom position an independent extension of all cylinder stages in Depending on the piston area ratio is possible.
- the Sequence of the telescopic carrier extension is determined by the telescopic cylinder controlled according to the invention depending on the load. A stroke reducing According to the invention, movement takes place in reverse depending on the load Sequence.
- Telescopic boom as an example using the attached drawing explained in more detail.
- Telescopic boom 10 comprises a plurality of mutually displaceable Telescopic support 12, 14, 16, 18.
- the outer telescopic support 12 serves to receive and guide the inner telescopic carrier 14, 16, 18.
- the three inner telescopic supports 14, 16, 18 are coupled to one another and are displaceable and form a telescopic support group.
- the innermost two telescopic supports 16, 18 via a first and a second Cable or chain hoist 20, 26 connected to each other. they form thereby a stroke doubling system.
- the first rope or Chain hoist 20 serves as a retraction chain or rope and is guided over a first deflection device 22.
- the first Chain or cable 20 is by means of a fastening device 32 at the inner end of the telescopic carrier 18 attached.
- the opposite end of the first chain or Cable 20 is on the outside via a fastening device 34 End of the telescopic support 14 attached.
- the second Chain or cable pull 26 acts as an extension chain or rope.
- a second Deflection device 24 guided and is the first Chain or. Cable 20 via two fastening devices 28, 30 attached to the telescopic supports 14, 18.
- outer telescopic support 12 and the two outer telescopic supports 14, 16 of the telescopic support group 14, 16, 18 over a single one, within the telescopic boom 10 arranged, double-acting and double-stage telescopic cylinders 36 are operatively connected to each other.
- Piston rod 44 of the telescopic cylinder 36 fixed to the inner, end support base 42c of the outer telescopic support 12 connected.
- first cylinder stage 38 on the inner support base 42a of the telescopic support 16 rests and attached there.
- a second cylinder stage 40 is on the inner support base 42b of the telescopic support 14 is arranged and attached there.
- a cylinder sliding guide 46 is inside the innermost Telescopic carrier 18 arranged.
- two-stage telescopic cylinder 36 is the Sequence of the telescopic extension of the outer telescopic carrier 12 and the telescopic carrier group 14, 16, 18 depending on the load controlled. Due to the piston area ratio change is a any interpretation of the extension as well as insertion order guaranteed.
- Telescopic boom 10 By using a single telescopic cylinder 36 in Telescopic boom 10 is the number of hydraulic required Elements minimized. So only one is sufficient Pressure and return line connected to the telescopic cylinder 36 are connected.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
Description
Claims (3)
- Teleskopausleger für Hubarbeitsbühnen, insbesondere für fahrbare und selbstfahrbare Hubarbeitsbühnen, mit mehreren zueinander verschiebbar angeordneten Telekopträgern, wobei der äußere Teleskopträger (12) zur Aufnahme und Führung der inneren Teleskopträger (14, 16, 18) dient und mindestens drei der inneren Teleskopträger (14, 16, 18) miteinander gekoppelt und verschiebbar sind und eine Teleskopträgergruppe bilden, wobei wenigstens die innersten zwei Teleskopträger (16, 18) über mindestens zwei Ketten- oder Seilzüge (20, 26) miteinander verbunden sind,
dadurch gekennzeichnet,
daß der äußere Teleskopträger (12) und mindestens die beiden äußeren Teleskopträger (14, 16) der Teleskopträgergruppe (14, 16, 18) über einen einzelnen, innerhalb des Teleskopauslegers (10) angeordneten, doppelwirkenden und mindestens doppelstufigen Teleskopzylinder (36) in Wirkverbindung zueinander stehen. - Teleskopausleger nach Anspruch 1,
dadurch gekennzeichnet,
daß die Reihenfolge des Teleskopausschubs des äußeren Teleskopträgers (12) und der Teleskopträgergruppe (14, 16, 18) lastabhängig durch den Teleskopzylinder (36) steuerbar ist. - Teleskopausleger nach einem der Ansprüch 1 und 2,
dadurch gekennzeichnet,
daß der Teleskopzylinder (36) mindestens eine erste und eine zweite Zylinderstufe (38, 40) aufweist, wobei die Zylinderstufen (38, 40) unabhängig voneinander ausgefahren werden können.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29806602U | 1998-04-09 | ||
| DE29806602U DE29806602U1 (de) | 1998-04-09 | 1998-04-09 | Teleskopausleger für Hubarbeitsbühnen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0949194A2 true EP0949194A2 (de) | 1999-10-13 |
| EP0949194A3 EP0949194A3 (de) | 2000-10-18 |
Family
ID=8055623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98111555A Withdrawn EP0949194A3 (de) | 1998-04-09 | 1998-06-23 | Teleskopausleger für Hubarbeitsbühnen |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0949194A3 (de) |
| DE (1) | DE29806602U1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116040508A (zh) * | 2022-12-02 | 2023-05-02 | 河南骏通车辆有限公司 | 一种绳排伸缩结构、伸缩臂起重机及其起重方法 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29811413U1 (de) | 1998-06-25 | 1999-08-26 | BISON stematec Maschinenbau- und Hubarbeitsbühnen Produktionsgesellschaft mbH, 02708 Löbau | Mehrstufiger, doppelt wirkender Hydraulikzylinder mit Hydraulikanordnung insbesondere für Hubarbeitssysteme |
| DE202010013830U1 (de) | 2010-10-04 | 2011-07-06 | Lebro Verwertungs-GbR (vertretungsberechtigte Gesellschafter: Heinz Lehmann, 72175 Dornhan und Manfred Bronner, 72175 Dornhan), 72175 | Teleskophubarbeitsbühne |
| DE102013109510A1 (de) | 2013-05-02 | 2014-11-06 | Karl-Heinz Kaiser | Hubvorrichtung |
| CN112661024A (zh) * | 2020-12-20 | 2021-04-16 | 河南五建建设集团有限公司 | 一种桥面吊机的水平滑移装置 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7303518A (de) * | 1972-04-06 | 1973-10-09 | ||
| DE2227471B2 (de) * | 1972-06-06 | 1976-01-08 | Heinz Dipl.-Ing. Wetzikon Schellenberg (Schweiz) | Fahrbare Teleskophebeeinrichtung |
| US4133411A (en) * | 1977-02-11 | 1979-01-09 | Chamberlain Manufacturing Corporation | Extensible boom |
| FR2514338A1 (fr) * | 1981-10-12 | 1983-04-15 | Egie | Engin elevateur de personnel du type telescopique |
| FR2549029B1 (fr) * | 1983-07-11 | 1987-01-30 | Comabi Sa | Elevateur comportant au moins un mat telescopique |
| FR2659398B1 (fr) * | 1990-03-06 | 1992-07-10 | Ppm Sa | Verin multiple, circuit d'alimentation d'un tel verin, et fleche telescopique faisant application de ce verin. |
| DE4030167A1 (de) * | 1990-09-24 | 1992-03-26 | Michaelis Karl Heinz | Fahrbare hubbuehne |
| DE4311964A1 (de) * | 1993-04-10 | 1994-10-13 | Krupp Ag Hoesch Krupp | Teleskopauslegerkran |
| FR2708584B1 (fr) * | 1993-08-06 | 1995-10-27 | Ppm | Dispositif de commande sélective du déplacement simultané ou télescopique synchronisé de deux éléments constitutifs d'une flèche télescopique de grue. |
-
1998
- 1998-04-09 DE DE29806602U patent/DE29806602U1/de not_active Expired - Lifetime
- 1998-06-23 EP EP98111555A patent/EP0949194A3/de not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116040508A (zh) * | 2022-12-02 | 2023-05-02 | 河南骏通车辆有限公司 | 一种绳排伸缩结构、伸缩臂起重机及其起重方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0949194A3 (de) | 2000-10-18 |
| DE29806602U1 (de) | 1999-05-12 |
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