EP0374109B1 - Mobiler und zerlegbarer Unterbau für Gerüste - Google Patents

Mobiler und zerlegbarer Unterbau für Gerüste Download PDF

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Publication number
EP0374109B1
EP0374109B1 EP89830545A EP89830545A EP0374109B1 EP 0374109 B1 EP0374109 B1 EP 0374109B1 EP 89830545 A EP89830545 A EP 89830545A EP 89830545 A EP89830545 A EP 89830545A EP 0374109 B1 EP0374109 B1 EP 0374109B1
Authority
EP
European Patent Office
Prior art keywords
basement
wheels
steering
driving
scaffolding
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 - Lifetime
Application number
EP89830545A
Other languages
English (en)
French (fr)
Other versions
EP0374109A1 (de
Inventor
Fabrizio Venturini
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT89830545T priority Critical patent/ATE78075T1/de
Publication of EP0374109A1 publication Critical patent/EP0374109A1/de
Application granted granted Critical
Publication of EP0374109B1 publication Critical patent/EP0374109B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/24—Scaffolds primarily resting on the ground comprising essentially special base constructions; comprising essentially special ground-engaging parts, e.g. inclined struts, wheels
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/24—Scaffolds primarily resting on the ground comprising essentially special base constructions; comprising essentially special ground-engaging parts, e.g. inclined struts, wheels
    • E04G2001/242—Scaffolds movable on wheels or tracks
    • E04G2001/244—Scaffolds movable on wheels or tracks mechanically operated

Definitions

  • the invention refers to a basement, for mobile and disassemblable scaffoldings, trestle bridges, telescopic bridges or the like, comprising at least a driving wheel having a fixed axis combined to a propelling means, and a pair of steering wheels combined to an actuator means able to drive the steering of said steering wheels.
  • a scaffold with steering wheels and driving wheels mounted on a basement is described in US-A-3 422 922.
  • This known scaffold comprises a rigid rectangular frame forming a basement, on which the driving and steering wheels are supported.
  • Channel track elements and inclined channel braces are rigidly connected to the frame and extend upwardly to form a guide means for a platform frame which is vertically movable with respect to the basement.
  • This known scaffold cannot be disassembled and is designed to be used as a vehicle.
  • the basement comprises a front or steering part and a rear or driving part, which are removably connected through longitudinal beams, locking means being provided for an easy locking and releasing of said beams and of said front and rear parts of the basement. Furthermore, said front and rear parts are provided with connecting means for connecting the basement to the scaffolding, trestle bridge, telescopic bridge or the like.
  • each of said front and rear part comprises a box-type structure within which the corresponding wheels and the driving members of said wheels are housed, the wheels partly projecting from the open bottom of the relevant box-type structure.
  • This box like structure of the front and rear parts respectively allow a remarkable resistance even to torsional and bending stresses at very limited production costs and are, moreover, particularly suitable to carry out a connection with the longitudinal beams.
  • the driving and steering wheels project only slightly from the relevant box-type structure so that, if during use a wheel comes across a pit or a depression, the scaffolding will not turn over as the basement will rest on the ground with its box-like structure.
  • the box-type structure has an inverted U-shaped cross-section within which the wheels and driving mechanisms are housed.
  • the invention also refers to a scaffolding provided with a basement as above described.
  • the drawing shows schematically a non limiting embodiment of the invention.
  • the basement is shown in combination with a trestle bridge, but it will be appreciated that it may be applied to telescopic bridges or to other self-propelling means as well.
  • a mobile scaffolding 1 comprises a tubular disassemblable structure 3 of a type known per se, having in particular four uprights 3A connected to a basement generally indicated by 5, provided with four wheels 7, 9.
  • the wheels 7, 9 are borne by two parts of the basement 5: a front or steering part, indicated by 11, and a rear or driving part, indicated by 13.
  • the wheels 7 borne by the steering part 11 of basement 5 are pivoting wheels, that is they are movable about vertical axes thus having a steering capability, and they are combined to means able to control the steering, as described later in greater detail; while the rear wheels 9 have fixed axes and are mechanically driven to allow the scaffolding to move forward, as described in the following.
  • Parts 11 and 13 of basement 5 are connected to each other by tubular beams 15 whose ends are received in corresponding supports 17, 19 (see in particular Figs. 2 and 4) carried by parts 11, 13 and blocked by srew members 21 provided with grips 23 to facilitate the manoeuvre thereof.
  • the basement 5 may be easily disassembled by loosening the screw members 21 and withdrawing the beams 15 from the respective housings 17, 19.
  • 13 tubular seats 25 are solidly applied (for example by welding) inside which the lower ends of the uprights 3A of structure 3 of scaffolding 1 are fitted.
  • Possible locking members may be provided to link the structure 3 to the basement 3.
  • Figs. 2 to 4 show in detail the front or steering part 11 of the basement 5.
  • part 11 comprises a box-type structure 30 with inverted U-shaped cross-section carrying the housings 17, 19 for receiving the ends of the tubular beams 15, in correspondence of which housings the screw-operated clamping means 21 are disposed.
  • the two pivoting wheels 7 are applied to the tubular structure 30, each wheel being supported by a corresponding bracket 32, borne by a plate 33 anchored to the box-type structure 30 by screws 34 (Fig. 4), which bracket 32 rotates about a vertical axis A-A.
  • a fork 36 is combined to each of said two pivoting wheels 7, which engages the respective pivoting wheel in correspondence of the rotation axis thereof.
  • the two forks 36 are hinged through an articulation 40 to relevant arms or connecting rods 38, which are in turn hinged, at the opposite end with respect to fork 36, to a crank 44 through an articulation 42 similar to articulation 40.
  • the crank 44 rotates about a vertical axis B by an electrical motor 46, through a joint 48 and a reduction gear 50.
  • the electrical motor 46 powered by a battery 52 carried by the same basement (Fig. 1), drives into rotation the crank 44 according to double arrow f44 in clockwise or anti-clockwise direction according to the command given by the operator, so as to allow the basement and the whole scaffolding to steer in one direction or the other as required.
  • the control of the motor is made through a console 54 (Fig. 1) carried by the structure 3 of the scaffolding 1, at a level suitable for an easy access by an operator standing on the ground or by an operator standing on the scaffolding, a sufficiently long cable being provided to displace the console from one position to another.
  • a console lever or bottom means or similar are provided for controlling the rotation of the electrical motor 46.
  • an indicator of the charge level of the battery 52 and an indicator of the position of the steering wheels may also be provided.
  • analog and digital transducer means of known type which detect the position of crank 44.
  • said position transducer means may comprise a potentiometer able to detect the angular position of the crank 44.
  • Figs. 5 to 7 illustrate a possible embodiment of the rear part 13 of basement 5, which carries the propelling means for causing the advancement of the self-propelling scaffolding.
  • the rear or driving part 13 comprise a box-type structure 60 equal or similar to the box-type structure 30 carrying the housings 17, 19 for the tubular beams 15.
  • the box-type structure 60 is provided at its ends with closing plates 61 solidly engaged to said box-type structure 60.
  • the plates 61 carry supports 63 for the ends of a shaft 65 on which the driving wheels 9 are fitted.
  • the shaft 65 is driven into rotation by a geared motor 67 comprising an electrical motor 69, said geared motor being supported by a bracket 71 achored to the box-type structure 60.
  • the electrical motor 69 is powered by battery 52 and is put into operation by lever, button or similar means disposed on console 54. Moreover, the motor 69 can be driven into rotation in both directions to allow the movement of the scaffolding in forward or backward direction.
  • a single driving wheel connected to a geared motor and a wheel idly mounted in the box-type structure coaxially to the driving wheel.
  • the basement 5 is provided with means of known type and schematically indicated by 73 of Fig. 1 for securing the scaffolding on the ground.
  • the motor 69 is also able to act as safety means against accidental movements of the basement and thus of the scaffolding.
  • the velocity ratio between said motor and the driving wheels is very high, in the order of 1:70, so that the transmission is in practice irreversible.
  • the reduction ratio of geared motor 46 is extremely high so that the transmission is irreversible and, moreover, also in this case a self-braking motor may be provided.
  • the basement according to the invention is extremely practical in that it allows the scaffolding associated thereto to be easily moved without exerting any appreciable efforts, and in that it is further provided with safety devices as required for its use. This being particularly useful in case of works which call for frequent displacements of even heavy scaffoldings.
  • the basement according to the invention can be easily disassembled thus allowing a ready transfer thereof. To this end, it is sufficient, after having disengaged the scaffolding from the basement, to loosen the screw members 21 and withdraw the tubular beam 15 from their seats.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Handcart (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Baking, Grill, Roasting (AREA)
  • Ladders (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Emergency Lowering Means (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)

Claims (8)

1. Ein Unterbau für mobile und zerlegbare Gerüste, Gerüstbrücken, ausziehbare Brücken oder dergleichen, der wenigstens ein Antriebsrad (9) mit einer festen Achse (65) in Kombination mit einem Antriebsmittel (67, 69) und zwei Steuerräder (7) in Kombination mit einem Betätigungsmittel (46, 50) aufweist, das in der Lage ist, die Lenkung der Steuerräder (7) anzutreiben, dadurch gekennzeichnet, daß er ein Vorder- oder Steuerteil (11) und ein Hinter- oder Antriebsteil (13) umfaßt, die demontierbar über Längsträger (15) verbunden sind, wobei Verriegelungsmittel (21, 23) für ein einfaches Verriegeln und Lösen der Träger (15) und des Vorder- (11) und Hinterteils (13) des Unterbaus vorgesehen sind, und daß das Vorder- und Hinterteil mit Verbindungsmitteln (25) versehen sind, um den Unterbau mit dem Gerüst, der Gerüstbrücke, der ausziehbaren Brücke oder dergleichen zu verbinden.
2. Unterbau nach Anspruch 1, dadurch gekennzeichnet, daß sowohl das Vorder- als auch das Hinterteil (11, 13), eine kastenartige Struktur (30, 60) umfaßt, in der die entsprechenden Räder (7, 9) und die Antriebsteile-der Räder untergebracht sind, wobei die Räder teilweise aus dem offenen Boden der jeweiligen kastenartigen Struktur herausragen.
3. Unterbau nach Anspruch 2, dadurch gekennzeichnet, daß die kastenartige Struktur einen umgedreht U-förmigen Querschnitt aufweist, aus dem die Räder mit einem Teil ihres Radius herausragen.
4. Unterbau nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Antriebsmittel (67, 69) ein Gleichstrom-Getriebemotor ist.
5. Unterbau nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Betätigungsmittel (46, 50) zum Antrieb der Steuerräder einen elektrischen Gleichstrommotor (46) umfaßt.
6. Unterbau nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Steuerräder (7) Räder sind, die sich um eine vertikale Achse (A-A) drehen und daß jedem der Räder (7) eine Gabel (36) zugeordnet ist, die mit einem Gelenksystem (38, 44) zur Übertragung der Bewegung von dem Betätigungsmittel (46, 50) zu den Steuerrädern (7) verbunden ist.
7. Unterbau nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß mit dem Betätigungsmittel (46, 50) zum Antrieb der Steuerräder Positionserfassungsmittel kombiniert sind, um die Stellung der Steuerräder zu erfassen.
8. Mobiles und zerlegbares Gerüst, dadurch gekennzeichnet, daß es einen Unterbau nach einem oder mehreren der vorhergehenden Ansprüche umfaßt.
EP89830545A 1988-12-14 1989-12-14 Mobiler und zerlegbarer Unterbau für Gerüste Expired - Lifetime EP0374109B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89830545T ATE78075T1 (de) 1988-12-14 1989-12-14 Mobiler und zerlegbarer unterbau fuer gerueste.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8809544A IT1225836B (it) 1988-12-14 1988-12-14 Basamento smontabile e semovente per ponteggi
IT954488 1988-12-14

Publications (2)

Publication Number Publication Date
EP0374109A1 EP0374109A1 (de) 1990-06-20
EP0374109B1 true EP0374109B1 (de) 1992-07-08

Family

ID=11131956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89830545A Expired - Lifetime EP0374109B1 (de) 1988-12-14 1989-12-14 Mobiler und zerlegbarer Unterbau für Gerüste

Country Status (5)

Country Link
EP (1) EP0374109B1 (de)
AT (1) ATE78075T1 (de)
DE (1) DE68902044T2 (de)
ES (1) ES2033139T3 (de)
IT (1) IT1225836B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2684123A1 (fr) * 1991-11-27 1993-05-28 Vayssieres Andre Structure tridimensionnelle porteuse mobile notamment pour echafaudage.
CN110185248B (zh) * 2019-05-31 2021-04-16 浙江浙建钢结构有限公司 一种用于建筑中悬空物品支撑装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3422922A (en) * 1967-07-10 1969-01-21 Homer Carl Aiken Motorized scaffolds
US3731758A (en) * 1971-01-04 1973-05-08 Hibma A Scaffold drive and steering unit
US3865203A (en) * 1973-03-08 1975-02-11 Hibma Anne Marie Scaffold drive and steering unit
IT214650Z2 (it) * 1988-03-31 1990-05-28 Simonetti Liduina Impalcatura ad elementi componibili con basamento motorizzato ed elevatore laterale

Also Published As

Publication number Publication date
IT8809544A0 (it) 1988-12-14
DE68902044D1 (de) 1992-08-13
ATE78075T1 (de) 1992-07-15
ES2033139T3 (es) 1993-03-01
IT1225836B (it) 1990-12-06
DE68902044T2 (de) 1993-01-28
EP0374109A1 (de) 1990-06-20

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