FR2609701A1 - Telescopic mat, especially for rolling bridges - Google Patents

Telescopic mat, especially for rolling bridges Download PDF

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Publication number
FR2609701A1
FR2609701A1 FR8700745A FR8700745A FR2609701A1 FR 2609701 A1 FR2609701 A1 FR 2609701A1 FR 8700745 A FR8700745 A FR 8700745A FR 8700745 A FR8700745 A FR 8700745A FR 2609701 A1 FR2609701 A1 FR 2609701A1
Authority
FR
France
Prior art keywords
barrel
partitions
mast
drums
cables
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.)
Granted
Application number
FR8700745A
Other languages
French (fr)
Other versions
FR2609701B1 (en
Inventor
Francis Luc Lapre
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Reel SA
Original Assignee
Reel SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Reel SA filed Critical Reel SA
Priority to FR8700745A priority Critical patent/FR2609701B1/en
Publication of FR2609701A1 publication Critical patent/FR2609701A1/en
Application granted granted Critical
Publication of FR2609701B1 publication Critical patent/FR2609701B1/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, 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
    • B66F11/00Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04Lifting 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

Abstract

ITS FUTS 7, 8, 9, 10 EACH INCLUDE A CROSS-SECTION WITH A HEXAGONAL SECTION IN ORDER TO DETERMINE SIDE PARTITIONS WITH THE OUTER FACE OF THREE OF THEM ANGULARLY DISTRIBUTED REGULARLY SUPPORTING GUIDANCE 18 COOPERATING WITH GALETS INTERIOR OF THE CORRESPONDING BULKHEAD OF THE FUT THAT SURROUNDES THE OTHER SIDE PARTITIONS RELATING TO THEIR INTERNAL FACES OF PULLEYS 15-17 FOR THE PASSING OF AUXILIARY CABLES 14, 16. MAIN CABLES 20 PROVIDING CONTROL OF THE DEPLOYMENT OF THE BUCKETS AND THEIR CONTRACTION.

Description

When operations must be carried out at specific locations,
  an overhead crane with telescopic mast whose elementary drums develop towards the ground. Such a device is used for example for aircraft maintenance, the operator being mounted on a cantilever platform or nacelle associated with the lower part
  of the last fat in relation to which it can change orientation.
  This movement of the platform or nacelle causes torsional and bending forces on the barrels, so much so that means must be provided to absorb these forces without harming the good
functioning of the whole.
  In accordance with the invention, each fat has a polygonal cross section with an even number of sides in order to determine lateral partitions whose external face of some of them, angularly distributed in regular manner, supports a guide cooperating with complementary elements carried by the internal face of the corresponding partition of the barrel which surrounds it and the other lateral partitions of which bear on the internal face of
  pulleys for the passage of auxiliary cables.
  In a preferred embodiment, the barrels are produced by means of a tubular lattice frame with a hexagonal section, three partitions of each barrel not adjacent carrying the guides, while
  the pulleys are supported by the other three partitions.
  The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the - advantages which it is capable of providing: FIG. 1 is a general view of an overhead crane provided with a vertical mast established in accordance with the invention and the elements of which
  telescopic have been shown in section.
  Fig. 2 is an end view in which we have deleted
the extreme platform.
  Fig. 3 is an elevational view of the telescopic mast according to the invention. Fig. 4 is a partial view on a large scale of one of the
  telescopic elements in an isolated state.
  There is shown in fig. 1 an overhead crane 1 intended to move by means of wheels 2 supported on raceways 3, said
  traveling crane being provided with a carriage 4 suitable for moving transversely
  Lement through wheels 5, relative to the main beam of the crane. In the embodiment shown, the carriage 4 is integral with a telescopic mast 6 produced by means of a number of drums
sliding into each other.
  The chassis of the carriage 4 is associated with a fixed barrel 7 in which a first barrel 8 can slide, which encloses a second barrel 9 in which an extreme barrel 10 can move, the lower end of which is secured to a platform or nacelle 11. The barrel 10 is integral with an orientation crown 11a which cooperates with a pinion 12 carried by a geared motor 13 to ensure the rotation of the platform or
nacelle relative to the barrel 10.
  In the known manner, the sliding of the barrels is carried out by means of auxiliary cables 14, the ends of which are attached to the upper end on the one hand of any barrel and on the other hand of that of the barrel located i outside of the one around him directly. In other words, one of the ends 14a of the cable 14 is attached to the carriage 4, then this cable passes around a pulley 15 carried by the interior of the barrel 8 located immediately inside that 7, then the other end 14b of this cable is attached to the top of the barrel 9 located in that 8. Similarly, a second cable 16 is attached by one of its ends 16a to the upper end of the barrel 8, then it passes around a pulley 17 associated with barrel 9, its other end 16b being fixed at the end
superior of the last bole 10.
  According to the invention, each barrel has in cross section the shape of a hexagon, so that there are three cables 14 and three cables 16 located opposite three non-adjacent faces and angularly distributed so regular compared
to the geometric axis of the barrels.
  The other three faces of the latter are intended for their angular guidance. For this purpose, the partitions of the drums which are not arranged opposite the pulleys 15 and 17 carry on their outer faces a guide rail 18. These rails are respectively carried by the drums 8, 9 and 10 (fig 2). The inner faces of the corresponding partitions of the drums 7, 8 and 9 carry two superimposed rows of rollers 19 which roll on the rails 18, as
'will explain this further below.
  Illustrated in fig. 3 the position of the two rows of rollers 19 of each drum 7 to 9, as well as that of the pulleys 15 and 17 associated respectively with the drums 9 and 8. It can be seen that the two rows of rollers are located practically at the free end of each was 7, 8 and 9. The pulleys 15 and 17 are advantageously located in the
lower part of barrels 8 and 9.
  In the embodiment shown, the deployment of the drums is carried out by gravity. Main cables 20 leave from a winch 4a of the carriage 4 to come to cooperate with pulleys 21 mounted at the top of the barrel 10, in order to control the speed of movement synchronized by gravity of said barrels. On the contrary, during the contraction of the mast, the main cables 20 are wound in the known manner so as to reassemble the barrel 10 which, via the cables 16 and 14, ensures the synchronized movement of the barrels upwards. We will not come back
  on this way of proceeding which is well known in practice.
  As illustrated in fig. 2 and 4 all the fats are produced by means of several tubular lattice partitions, of longitudinal coupling boxes 22 forming the assembly elements of the transverse and oblique tubes 23 at each of the angles of the drums. It is observed that each box 22 is produced by means of two tubes of rectangular or similar section 23a, 23b oriented obliquely and joined by means of two t8les, one internal 23c and the other external, e 23d. So that the lattice frameworks do not appear, the outer faces of the drums can be coated with full panels illustrated
more particularly in fig. 3.
  A telescopic mast for an overhead crane has thus been produced which has a structure capable of absorbing the forces due to the rotation of the platform by means of a guide on three rails fixed to the faces of a tubular lattice frame allowing significant weight gain, said guidance also ensuring the recovery of
  bending forces when the nacelle 11 is mounted cantilevered.
  It should also be understood that the foregoing description
  has been given only by way of example and that it in no way limits the field of the invention from which one would not depart by replacing the
  execution details described by all other equivalents.
2,609,701 l
R E V E ND I C A T I ON S
  1. Telescopic mast in particular for overhead traveling cranes of the type comprising several sliding drums (7, 8, 9, 10) by means of main (20) and auxiliary cables (14, 16), characterized in that said drums (7, 8, 9, 10) each have a polygonal cross section with an even number of sides in order to determine lateral partitions whose external face of some of them, angularly distributed in a regular manner, supports a guide (18) cooperating with complementary elements ( 19) carried by the internal face of the corresponding partition of the barrel which surrounds it, the other lateral partitions of which carry pulleys (15, 17) on their internal faces to
  the passage of the auxiliary cables (14, 16).
  2. Mast according to claim 1, characterized in that the elements complementary to the guides consist of rollers (19) distributed in two superimposed rows arranged at the part
lower barrels (7, 8, 9).
  3. Mast according to claim 1, characterized in that the lower barrel (10) carries at its free end a platform or working nacelle (11) mounted in porteà4faux rotation relative to said barrel (10). 4. Mast according to claim 3, characterized in that its barrel
exterior (7) is fixed.
  5. Mast according to claim 1, characterized in that the deployment of its legs (8, 9, 10) is effected by gravity, the ends of the auxiliary cables (14, 16) being attached to the upper end of a part of a barrel and secondly of the barrel located outside of that
which surrounds it directly.
  6. Mast according to claim 1, characterized in that the f6ts (7, 8, 9, 10) are made by means of lattice partitions
  produced in the form of tubes (22) and determining a hexagonal section.
  7. Mast according to claim 5, characterized in that the
  outer sides of the barrels are covered with a solid panel.
  8. Mast according to claim 6, characterized in that the tubes (23) constituting the tubular lattice are assembled to vertical boxes (22) constituting the angles of each barrel (7, 8, 9,). 9. Mast according to claim 5, characterized in that the guides (18) are located on three non-adjacent partitions of the drums (7, 8, 9, 10) and in that the pulleys are carried by the three
other partitions.
FR8700745A 1987-01-20 1987-01-20 Telescopic mat, especially for rolling bridges Expired FR2609701B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8700745A FR2609701B1 (en) 1987-01-20 1987-01-20 Telescopic mat, especially for rolling bridges

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
FR8700745A FR2609701B1 (en) 1987-01-20 1987-01-20 Telescopic mat, especially for rolling bridges
ES88420016T ES2018631B3 (en) 1987-01-20 1988-01-20 Telescopic mast for crane bridges.
EP88420016A EP0277078B1 (en) 1987-01-20 1988-01-20 Telescopic mast for an overhead travelling crane
AT88420016T AT57165T (en) 1987-01-20 1988-01-20 Telescopic column for trolley.
DE8888420016T DE3860708D1 (en) 1987-01-20 1988-01-20 TELESCOPIC COLUMN FOR TROLLEY.

Publications (2)

Publication Number Publication Date
FR2609701A1 true FR2609701A1 (en) 1988-07-22
FR2609701B1 FR2609701B1 (en) 1989-04-07

Family

ID=9347174

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8700745A Expired FR2609701B1 (en) 1987-01-20 1987-01-20 Telescopic mat, especially for rolling bridges

Country Status (5)

Country Link
EP (1) EP0277078B1 (en)
AT (1) AT57165T (en)
DE (1) DE3860708D1 (en)
ES (1) ES2018631B3 (en)
FR (1) FR2609701B1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2640607B1 (en) * 1988-12-19 1991-05-17 Cga Hbs Load lifting device
FR2642059A1 (en) * 1988-12-29 1990-07-27 Ipr Productique Sarl Translation control device, particularly for a handling assembly
EP0533977A1 (en) * 1991-09-26 1993-03-31 INTERSER GROUP S.r.l. Overhead traveling device for carrying out pipelining and large mantainance works in industrial buildings
US5280715A (en) * 1992-01-13 1994-01-25 Caterpillar Inc. Lifting arrangement and method
ES2113264B1 (en) * 1993-08-02 1999-01-01 Franz Ehrenleitner Suspension device for the suspension of loads and hook in corresponding c.
FR2788263B1 (en) * 1999-01-12 2001-03-16 Reel Sa Device for handling suspended loads
FR2921578B1 (en) * 2007-09-28 2010-01-29 Sidel Participations MANIPULATOR ROBOT FOR PALLETIZER
DK177708B1 (en) 2012-09-06 2014-03-24 Falck Schmidt Defence Systems As A telescopic mast
US9706860B2 (en) * 2013-12-13 2017-07-18 Ping Li Dish conveying device used in catering store
CN103625869B (en) * 2013-12-13 2015-04-29 李平 Lifting mechanism and dish delivery device with same
CN105249980A (en) * 2015-08-31 2016-01-20 上海飞乐机械制造有限公司 Medical telescopic equipartition rectilinear motion mechanism
CN106419430A (en) * 2016-11-28 2017-02-22 哈工大机器人集团上海有限公司 Lifting device for dining room

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2632530A (en) * 1950-07-03 1953-03-24 Elmer A Wagner Telescoping tower vehicle
DE921172C (en) * 1949-01-19 1954-12-09 Richard Gladewitz Mobile, extendable ladder frame
US3286853A (en) * 1964-12-24 1966-11-22 Harnischfeger Corp Stacker crane power lift mechanism
FR1545379A (en) * 1966-11-28 1968-11-08 Vagbelysning Ab Telescopic mast improved to support antennas and the like
US3602335A (en) * 1969-09-25 1971-08-31 Eaton Yale & Towne Platform positioning mechanism
DE2406387A1 (en) * 1974-02-11 1975-08-21 Ver Flugtechnische Werke Overhead working platform with telescopic support - has rope pulleys and endless rope actuator between each telescopic section
US4166542A (en) * 1977-12-05 1979-09-04 Bryan John F Jr Telescoping lattice boom crane
FR2448606A1 (en) * 1979-02-09 1980-09-05 Eklund Erik TELESCOPIC MAT
US4258825A (en) * 1978-05-18 1981-03-31 Collins Pat L Powered manlift cart
DE3528996C1 (en) * 1985-08-13 1986-12-18 Mannesmann Ag Telescopic column

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE921172C (en) * 1949-01-19 1954-12-09 Richard Gladewitz Mobile, extendable ladder frame
US2632530A (en) * 1950-07-03 1953-03-24 Elmer A Wagner Telescoping tower vehicle
US3286853A (en) * 1964-12-24 1966-11-22 Harnischfeger Corp Stacker crane power lift mechanism
FR1545379A (en) * 1966-11-28 1968-11-08 Vagbelysning Ab Telescopic mast improved to support antennas and the like
US3602335A (en) * 1969-09-25 1971-08-31 Eaton Yale & Towne Platform positioning mechanism
DE2406387A1 (en) * 1974-02-11 1975-08-21 Ver Flugtechnische Werke Overhead working platform with telescopic support - has rope pulleys and endless rope actuator between each telescopic section
US4166542A (en) * 1977-12-05 1979-09-04 Bryan John F Jr Telescoping lattice boom crane
US4258825A (en) * 1978-05-18 1981-03-31 Collins Pat L Powered manlift cart
FR2448606A1 (en) * 1979-02-09 1980-09-05 Eklund Erik TELESCOPIC MAT
DE3528996C1 (en) * 1985-08-13 1986-12-18 Mannesmann Ag Telescopic column

Also Published As

Publication number Publication date
DE3860708D1 (en) 1990-11-08
EP0277078B1 (en) 1990-10-03
FR2609701B1 (en) 1989-04-07
AT57165T (en) 1990-10-15
ES2018631B3 (en) 1991-04-16
EP0277078A1 (en) 1988-08-03

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