WO1992003324A1 - Hoisting device for lifting loads - Google Patents

Hoisting device for lifting loads Download PDF

Info

Publication number
WO1992003324A1
WO1992003324A1 PCT/CH1991/000179 CH9100179W WO9203324A1 WO 1992003324 A1 WO1992003324 A1 WO 1992003324A1 CH 9100179 W CH9100179 W CH 9100179W WO 9203324 A1 WO9203324 A1 WO 9203324A1
Authority
WO
WIPO (PCT)
Prior art keywords
rod
lifting device
lifting
pressure
locking
Prior art date
Application number
PCT/CH1991/000179
Other languages
German (de)
French (fr)
Inventor
Georg Hirmann
Original Assignee
Georg Hirmann
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 Georg Hirmann filed Critical Georg Hirmann
Publication of WO1992003324A1 publication Critical patent/WO1992003324A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/04—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment
    • B62B3/06—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment for simply clearing the load from the ground
    • B62B3/0625—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment for simply clearing the load from the ground using rigid mechanical lifting mechanisms, e.g. levers, cams or gears

Definitions

  • Fig. 1 shows a lifting device with a bow-shaped foot lever 1 and with a pedal-operated locking pawl 2 before the load 3 is lifted.
  • Fig. 2 shows a lifting device after lifting the load.
  • the load is deposited by foot pressure 10 on the tilting edge 11.
  • Fig. 3 shows a bow-shaped additional device 20, with rollers 21, which make it possible to raise the front wheels 22 slightly in order to overcome level transitions 23.
  • Fig. 4 shows a hand lever actuation 30, with locking 31 of the lifting position which can also be released by hand.
  • FIG. 5 shows a platform 41 that is moved via horizontally displaceable wedges 40. The actuation takes place via tilting 42, 43 to activate 4, or to release 45 the locking device 46.
  • FIG. 6 shows a device similar to FIG. 5, but with hydrostatic, for example pneumatic, actuation.
  • the rod 54 with the wedges is displaced via the roller 51 and the pressure plate 52 and, supported on the bearing 53.
  • the bracket 56 pressed against the rod via springs 55 acts as a frictional brake which is released during the displacement of the rod by the reaction force of the force cell.
  • the force of the return spring 57 is determined such that a lower medium pressure only releases the braking effect of the bracket 56 and controls the return of the rod 54, whereas a higher pressure causes the load 58 to be lifted.
  • Fig. 1 roller-mounted lifting device with bow-shaped lever arm for foot actuation before lifting the load.
  • Fig. 2 roller-mounted lifting device with bow-shaped lever arm for foot actuation with raised load.
  • Fig. 4 Hand lever operated lifting device.
  • FIG. 5 Foot lever operated lifting device with wedge tracks.
  • Fig. 6 Hydrostatically operated and acting over wedges lifting device with frictional locking of the lifting position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Handcart (AREA)

Abstract

Hoisting device for lifting loads with a power transmission and a blocking section. The figure shows a platform moved over horizontally movable wedges which is hydrostatically, e.g. pneumatically, actuated. When a pressure medium is fed into the power cell (50), the rod (54) with the wedges is shifted via a roller (57) and pressure plate (52), supported on the suspension (53). The bracket (56) pressed by springs (55) against the rod acts in the position of rest as a friction brake which is released during the movement of the rod by the reactive force of the power cell. The power of the return spring (57) is determined so that slight pressure from the medium only releases the braking effect of the bracket (56) and controls the return of the rod (54), whereas a higher pressure lifts the load (58).

Description

Hebevorrichtung zum Heben von Lasten Lifting device for lifting loads
Fig . 1 zeigt eine Hebevorrichtung mit bügeiförmigem Fusshebel 1 und mit pedalbetätigter Arretierklinke 2 , vor dem Heben der Last 3.Fig. 1 shows a lifting device with a bow-shaped foot lever 1 and with a pedal-operated locking pawl 2 before the load 3 is lifted.
Fig. 2 zeigt eine Hebevorrichtung nach dem Heben der Last. Das Absetzen der Last erfolgt durch Fusε druck 10 , auf die Kippedalkante 11.Fig. 2 shows a lifting device after lifting the load. The load is deposited by foot pressure 10 on the tilting edge 11.
Fig . 3 zeigt eine bügelförmige Zusatzeinrichtung 20 , mit Rollen 21 , welche es ermöglichen , die Vorderräder 22 leicht anzuheben um Niveauübergänge 23 zu überwinden.Fig. 3 shows a bow-shaped additional device 20, with rollers 21, which make it possible to raise the front wheels 22 slightly in order to overcome level transitions 23.
Fig. 4 zeigt eine Handhebelbetätigung 30 , mit ebenfalls von Hand lösbarer Arretierung 31 der Hubposition.Fig. 4 shows a hand lever actuation 30, with locking 31 of the lifting position which can also be released by hand.
Fig . 5 zeigt eine über horizontal verschiebbare Keile 40 , bewegte Plattform 41 Die Betätigung erfolgt über Kippedale 42 ,43 zum aktivieren 4 , oder zum lösen 45 der Arretierung 46.Fig. FIG. 5 shows a platform 41 that is moved via horizontally displaceable wedges 40. The actuation takes place via tilting 42, 43 to activate 4, or to release 45 the locking device 46.
Fig. 6 zeigt eine Fig. 5 ähnlivhe Vorrichtung , jedoch mit hydrostatischer , bei¬ spielsweise pneumatischer Betätigung . Bei Druckmediumzuführung in die Kraft¬ zelle 50 wird über Rolle 51 und Druckplatte 52 und , abgestützt auf die Lage¬ rung 53 , der Stab 54 mit den Keilen verschoben. Der über Federn 55 gegen den Stab gepresste Bügel 56 wirkt in der Ruhelage als reibungsschlüssige Bremse , welche sich während der Verschiebung des Stabes durch die Reaktionskraft der Kraftzelle löst.FIG. 6 shows a device similar to FIG. 5, but with hydrostatic, for example pneumatic, actuation. When pressure medium is fed into the force cell 50, the rod 54 with the wedges is displaced via the roller 51 and the pressure plate 52 and, supported on the bearing 53. In the rest position, the bracket 56 pressed against the rod via springs 55 acts as a frictional brake which is released during the displacement of the rod by the reaction force of the force cell.
Die Kraft der Rückstellfeder 57 wird so bestimmt , dass ein geringerer Medium¬ druck nur die Bremswirkung des Bügels 56 löst und den Rücklauf des Stabes 54 steuert , wogegen ein höherer Druck das Heben der Last 58 bewirkt. Die Figuren zeigen:The force of the return spring 57 is determined such that a lower medium pressure only releases the braking effect of the bracket 56 and controls the return of the rod 54, whereas a higher pressure causes the load 58 to be lifted. The figures show:
Fig . 1 Rollengelagerte Hubvorrichtung mit bügeiförmigem Hebelarm für Fussbetätigung vor dem Heben der Last.Fig. 1 roller-mounted lifting device with bow-shaped lever arm for foot actuation before lifting the load.
Fig . 2 Rollengelagerte Hubvorrichtung mit bügeiförmigem Hebelarm für Fussbetätigung mit angehobener Last.Fig. 2 roller-mounted lifting device with bow-shaped lever arm for foot actuation with raised load.
Fig. 3 Rollengelagerte Hubvorrichtung mit zusätzlichem Bügel und Rollen zur Ueberwindung von Niveauunterschieden.Fig. 3 roller-bearing lifting device with additional bracket and rollers to overcome differences in level.
Fig . 4 Handhebelbetätigte Hebevorrichtung .Fig. 4 Hand lever operated lifting device.
Fig . 5 Fusshebelbetätigte Hebevorrichtung mit Keilbahnen.Fig. 5 Foot lever operated lifting device with wedge tracks.
Fig. 6 Hydrostatisch betätigte und über Keile wirkende Hebevorrichtung mit reibungs schlüssiger Arretierung der Hubposition . Fig. 6 Hydrostatically operated and acting over wedges lifting device with frictional locking of the lifting position.

Claims

Patentansprüche Claims
1. Hebevorrichtung zum Heben von Lasten, gekennzeichnet durch einen kraftübersetzenden und einen arretierenden Vorrichtungsteil.1. Lifting device for lifting loads, characterized by a force-translating and a locking device part.
(Fig. 1 - 6)(Fig. 1 - 6)
2. Hebevorrichtung nach Patentanspruch 1, gekennzeichnet durch einen Hebel zur Kraftübersetzung. (Fig. 1 -4)2. Lifting device according to claim 1, characterized by a lever for power transmission. (Fig. 1 -4)
3. Hebevorrichtung nach Patentanspruch 1, gekennzeichnet durch min¬ destens einen Keil zur Kraftübersetzung. (Fig. 5 - 6)3. Lifting device according to claim 1, characterized by at least one wedge for power transmission. (Fig. 5 - 6)
4. Hebevorrichtung nach Patentanspruch 1, gekennzeichnet durch eine Klinke zur Arretierung der Hubposition. (Fig. 1 - 5)4. Lifting device according to claim 1, characterized by a pawl for locking the lifting position. (Fig. 1 - 5)
5. Hebevorrichtung nach Patentanspruch 1, gekennzeichnet durch eine reibungsschlüssige Arretierung. (Fig. 6)5. Lifting device according to claim 1, characterized by a frictional locking. (Fig. 6)
6. Hebevorrichtung nach Patentanspruch 4, gekennzeichnet durch Pedal¬ betätigung der Arretierklinke . (Fig. 1- 3)6. Lifting device according to claim 4, characterized by pedal actuation of the locking pawl. (Fig. 1-3)
7. Hebevorrichtung nach Patentanspruch 6, gekennzeichnet durch eine Pedalausführung, welche je nach Fussdruckposition ein Schliessen oder Oeffnen der Klinke bewirkt. (Fig.5)7. Lifting device according to claim 6, characterized by a pedal design which, depending on the foot pressure position, causes a closing or opening of the latch. (Fig.5)
8. Hebevorrichtung nach Patentanspruch 1, gekennzeichnet durch Hand¬ betätigung der Arretiervorrichtung . (Fig.4) 8. Lifting device according to claim 1, characterized by manual actuation of the locking device. (Fig.4)
PCT/CH1991/000179 1990-08-27 1991-08-23 Hoisting device for lifting loads WO1992003324A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH276190A CH683916A5 (en) 1990-08-27 1990-08-27 Lifting device for loads.
CH2761/90-0 1990-08-27

Publications (1)

Publication Number Publication Date
WO1992003324A1 true WO1992003324A1 (en) 1992-03-05

Family

ID=4241019

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1991/000179 WO1992003324A1 (en) 1990-08-27 1991-08-23 Hoisting device for lifting loads

Country Status (2)

Country Link
CH (1) CH683916A5 (en)
WO (1) WO1992003324A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013017062A1 (en) * 2013-10-15 2015-04-16 Eisenmann Ag Feed unit and conveyor system for conveying load carriers

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB477067A (en) * 1936-12-17 1937-12-21 Hector Vincent Williams Improvements in or relating to means of lowering loads carried by lifting trucks or the like
GB956065A (en) * 1962-02-05 1964-04-22 Takefusa Kikuchi Improvements relating to load-lifting and transporting trucks
DE1239076B (en) * 1963-05-16 1967-04-20 George Bernard Johnstone Load handling device
GB2076776A (en) * 1980-05-20 1981-12-09 Steel & Aluminium Fabricators Improvements Relating to Conveyors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB477067A (en) * 1936-12-17 1937-12-21 Hector Vincent Williams Improvements in or relating to means of lowering loads carried by lifting trucks or the like
GB956065A (en) * 1962-02-05 1964-04-22 Takefusa Kikuchi Improvements relating to load-lifting and transporting trucks
DE1239076B (en) * 1963-05-16 1967-04-20 George Bernard Johnstone Load handling device
GB2076776A (en) * 1980-05-20 1981-12-09 Steel & Aluminium Fabricators Improvements Relating to Conveyors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013017062A1 (en) * 2013-10-15 2015-04-16 Eisenmann Ag Feed unit and conveyor system for conveying load carriers
EP3057845B1 (en) 2013-10-15 2021-03-03 pentanova cs GmbH Conveyor unit and conveyor system for conveying load carriers

Also Published As

Publication number Publication date
CH683916A5 (en) 1994-06-15

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