DE718047C - Retractable landing gear with two running wheels arranged next to each other - Google Patents

Retractable landing gear with two running wheels arranged next to each other

Info

Publication number
DE718047C
DE718047C DEH163973D DEH0163973D DE718047C DE 718047 C DE718047 C DE 718047C DE H163973 D DEH163973 D DE H163973D DE H0163973 D DEH0163973 D DE H0163973D DE 718047 C DE718047 C DE 718047C
Authority
DE
Germany
Prior art keywords
landing gear
arranged next
leg
wheels arranged
running wheels
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
Application number
DEH163973D
Other languages
German (de)
Inventor
Heinrich Heerdt
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.)
Heinkel Flugzeugwerke E GmbH
Original Assignee
Heinkel Flugzeugwerke E GmbH
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 Heinkel Flugzeugwerke E GmbH filed Critical Heinkel Flugzeugwerke E GmbH
Priority to DEH163973D priority Critical patent/DE718047C/en
Application granted granted Critical
Publication of DE718047C publication Critical patent/DE718047C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C25/00Alighting gear
    • B64C25/32Alighting gear characterised by elements which contact the ground or similar surface 
    • B64C25/34Alighting gear characterised by elements which contact the ground or similar surface  wheeled type, e.g. multi-wheeled bogies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Handcart (AREA)

Description

Einziehbares Fahrwerkbein mit zwei nebeneinander angeordneten Laufrädern Die bei großen Flugzeugen auftretende Be-1astung des Fahrwerks macht in vielen Fällen eine Verteilung der Last auf mehr als zwei Laufräder erforderlich. Bei Fahrwerken, die in bekannter Weise quer zur Flugrichtung in den Flügel oder den Rumpf eingezogen werden, ist der naheliegende Weg, zwei Räder an jedem Fahrwerkbein etwa zu beiden Seiten der Strebe anzuordnen, meist nicht gangbar, weil die Baulänge jedes Radpaares so groß ausfallen würde, daß es in den zur Verfügung stehenden Räumen nicht unterzubringen wäre.Retractable landing gear with two wheels arranged next to each other The loading of the landing gear that occurs in large aircraft makes in many cases it is necessary to distribute the load over more than two wheels. For trolleys, which are drawn into the wing or fuselage in a known manner transversely to the direction of flight the obvious way is to have two wheels on each leg roughly to both To arrange sides of the strut, usually not feasible, because the overall length of each pair of wheels would be so large that it could not be accommodated in the available rooms were.

Erfindungsgemäß wird vorgeschlagen, das eine der beiden an jedem quer zur Flugrichtung einziehbaren Fahrwerkbein nebeneinander angeordneten Laufräder in bekannter Weise unmittelbar am Fahrwerkbein und das andere Laufrad an einer Muffe zu befestigen, die beim Einziehen des Fährwerkbeines mittels einer an diesem vorgesehenen Führung, so auf dem Fahrwerkbein verschoben und verdreht wird, däß beide Räder in einsgezogener Stellung in oder annähernd in derselben Ebene liegen. Die Führung kann als Kurvenführung stetig verlaufend etwa schraubengangförmig gewunden sein, sie kann aber auch stufenartig erfolgen, und die Führung kann entweder im Zylindermantel der Stützstrebe als Nut ausgebildet oder als Keilbahn aufgesetzt sein. Die Fahrwerkbeine können nach außen oder nach Mitte Flugzeug klappen und auch einzeln verwendet werden.According to the invention it is proposed that one of the two transversely at each Running gear arranged next to each other for the direction of flight retractable landing gear in a known manner directly on the chassis leg and the other impeller on a sleeve to attach when pulling in the ferry leg by means of a provided on this Guide, is shifted and twisted on the leg so that both wheels are in retracted position in or approximately in the same plane. The leadership can be continuously wound as a curve guide, for example in a helical manner, but it can also take place in stages, and the guide can either be in the cylinder jacket the support strut designed as a groove or placed as a wedge track. The legs can be folded outwards or in the middle of the aircraft and can also be used individually.

In der Zeichnung, ist ein Ausführungsbeispiel schematisch dargestellt.In the drawing, an embodiment is shown schematically.

a ist ein in bekannter Weise federnd aus-,gebildetes Fahnverkbein, das um die flugzeugfeste Drehachse b in die gestrichelt gezeichnete Lage geschwenkt werden kann. Das Fahrwerkbein trägt zwei Laufräder c und Das Laufrad c ist in üblicher Weise am Fahrwerkbein a befestigt, während das Laufrad d an einer auf dem Fahrwerkbein a verschiebbaren Muffe e gelagert ist. Diese Muffe gleitet beim Einschwenken der Strebe auf dem zylindrischen Fahrwerkbein und wird durch die Nut f derart geführt, daß das Rad in der eingezogenen Lage die gestrichelte Stellung einnimmt. In dieser Weise eingezogen, nehmen die beiden Räder eine nur wenig größere Bauhöhe in Anspruch als ein einzelnes Rad, so daß sie auch bei geringer Flügeldicke unterzubringen sind. g, g2 sind Begrenzungskanten des Flügels. In entsprechender Weise kann das Fahrwerk auch in den Rumpf eingeschwenkt werden, renn die Raumaufteilung es wünschenswert machen sollte.a is a known way of resilient, formed Fahnverkbein, pivoted around the aircraft-fixed axis of rotation b into the position shown in dashed lines can be. The chassis leg carries two wheels c and the wheel c is in usual Way attached to the leg a, while the impeller d to one on the leg a sliding sleeve e is mounted. This sleeve slides when the Strut on the cylindrical leg and is guided through the groove f in such a way that that the wheel in the retracted position occupies the dashed position. In this When drawn in, the two wheels are only slightly larger in height than a single wheel, so that they can be accommodated even with thin blades. g, g2 are boundary edges of the wing. In a corresponding manner, the chassis can also be swiveled into the fuselage, the floor plan makes it desirable should do.

Die Feststellung der Muffe e am Fahrwerkbein « kann durch einen Bolzen, der elektrisch, hydraulisch oder mechanisch ausgerastet wird, erfolgen. Dieser Bolzen ist in der Zeichnung nicht dargestellt: auch -von der Darstellung der Bewegungseinrichtung der Muffe wurde abgesehen.The fixing of the sleeve e on the undercarriage «can be done by a bolt, which is disengaged electrically, hydraulically or mechanically. That bolt is not shown in the drawing: also -of the representation of the movement device the socket was disconnected.

Claims (1)

PATENTANSPRUCH: In den Rumpf oder Flügel des Flug zeugs quer zur Flugrichtung einziehbares Fährwerkbein mit zwei nebeneinander angeordneten Laufrädern, dadurch gekennzeichnet, daß das eine Laufrad f c i in an sich bekannter Weise unmittelbar am Fahrwerkbein (u; und das andere Laufrad (dan einer Muffe (e) befestigt ist, die beim Einziehen des Fahrwerkbeines (a) mittels einer an diesem vorgesehenen Führung (f) so auf dem Fahrwerkhein verschoben und verdreht wird, daß beide Räder in eingezogener Stellung in oder annähernd in derselben Ebene liegen. PATENT CLAIM: Fuselage leg which can be retracted transversely to the flight direction into the fuselage or wing of the aircraft, with two running wheels arranged next to one another, characterized in that one running wheel fci in a manner known per se directly on the running gear leg (u; and the other running wheel (next to a sleeve (e ) is attached, which is moved and rotated when retracting the landing gear leg (a) by means of a guide (f) provided on the chassis so that both wheels are in the retracted position in or approximately in the same plane.
DEH163973D 1940-12-07 1940-12-07 Retractable landing gear with two running wheels arranged next to each other Expired DE718047C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH163973D DE718047C (en) 1940-12-07 1940-12-07 Retractable landing gear with two running wheels arranged next to each other

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH163973D DE718047C (en) 1940-12-07 1940-12-07 Retractable landing gear with two running wheels arranged next to each other

Publications (1)

Publication Number Publication Date
DE718047C true DE718047C (en) 1942-02-28

Family

ID=7183915

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH163973D Expired DE718047C (en) 1940-12-07 1940-12-07 Retractable landing gear with two running wheels arranged next to each other

Country Status (1)

Country Link
DE (1) DE718047C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2925968A (en) * 1956-03-29 1960-02-23 English Electric Co Ltd Aircraft undercarriages
US3127134A (en) * 1964-03-31 Aircraft undercarriages
DE1272736B (en) * 1966-08-24 1968-07-11 Dornier Gmbh The aircraft landing gear can be pivoted about an axis extending in the aircraft longitudinal direction

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127134A (en) * 1964-03-31 Aircraft undercarriages
US2925968A (en) * 1956-03-29 1960-02-23 English Electric Co Ltd Aircraft undercarriages
DE1272736B (en) * 1966-08-24 1968-07-11 Dornier Gmbh The aircraft landing gear can be pivoted about an axis extending in the aircraft longitudinal direction

Similar Documents

Publication Publication Date Title
DE718047C (en) Retractable landing gear with two running wheels arranged next to each other
DE2924742A1 (en) LARGE PLANE, ESPECIALLY SHOULDER-DECK DESIGN
DE748739C (en) Tail-less aircraft with tail unit or leading wing arranged in front of the wing, transverse to the flight direction on the nose of the fuselage
DE760791C (en) Motor vehicle or the like with a removable aircraft wing
DE746811C (en) Retractable landing gear for aircraft, especially high-wing aircraft
DE851817C (en) Passenger transport vehicle on a cable car
DE655359C (en) Monoplane with a wing that can be dismantled into two half wings in the vertical direction
DE1521625U (en)
DE966920C (en) Forklift truck with a load lifting device arranged in front of the front axle and an adjustable counterweight arranged behind the rear axle
DE1927173A1 (en) Safety steering
DE736719C (en) Aircraft landing gear
DE692060C (en) Foldable aircraft wing
DE720453C (en) Retractable landing gear for aircraft
DE732486C (en) Landing facility for aircraft
DE1187139B (en) Arrangement of the nose landing gear and lift engine system in the aircraft fuselage
DE325134C (en) Chassis for aircraft with running wheels and snow skids that can be switched off
DE728256C (en) Airplane with propulsion that allows vertical take-off and landing
DE1197329B (en) Undercarriage for aircraft
DE646388C (en) Device for starting a glider that can be ascended as a hang-glider, especially for play purposes
DE727197C (en) Nose wheel landing gear for airplanes
DE800106C (en) Device to facilitate wheel changes in vehicles.
DE390218C (en) Airplane with retractable auxiliary tarpaulins
DE878604C (en) Motor vehicle with superstructure and chassis elastically supported on the chassis
DE721509C (en) Airplane wing
DE690656C (en) Steerable aircraft spur with impeller