EP0894933B1 - Container with a door - Google Patents

Description

The invention relates to a luggage storage compartment for aircraft according to the preamble of claim 1.

DE 91 14 977 U discloses a storage compartment for motor vehicles with all Features of the preamble of claim 1.

Conventional luggage storage compartments in airplanes are usually with Gas springs equipped, which facilitate the opening of the flaps and allow the flap to be kept in the open position. One disadvantage is the susceptibility of gas springs to low Temperatures. If the plane has cooled down a lot, it can due to high friction to problems opening the flaps come. For example, if the plane is at the airport at night confessed, it may happen that the passengers on Tomorrow will have difficulty opening the storage compartments. About that In addition, take the one-sided or two-sided arranged Gas springs a not inconsiderable part of the existing Volume of the luggage storage compartment, whereby that with luggage pieces loadable net volume is reduced. Also, the Gas springs may be damaged by cargo, if not covers be mounted, which in turn need space and the Difficult to assemble and maintain ..

US 3 955 241 A describes a container with a door which via at least one hinge od. Like. On the container is pivotally mounted and in which a complex mechanism a different depending on the opening angle of the door Counter-momentum causes, being in a certain intermediate position the door a counteracting force canceling the spring force is generated and thus no moment is exerted on the door. In In this position, the door can be easily installed or removed be without breaking the compression force of the coil spring or a force caused by the torque of the door Counterforce must be exercised. Such a mechanism is Although space-saving, but not at the luggage storage compartments meet requirements for aircraft.

Object of the present invention is therefore to provide a Luggage compartment with a door where the movement of the door of the Not too strong and too fast, but still a hold of the door in the open position is ensured. The lifetime should be as high as possible, the manufacturing and Maintenance costs should be as low as possible. The disadvantages are known systems avoided or at least reduced as possible become. The container according to the invention is also intended in particular the high safety standards required for use in the aircraft industry. and load conditions.

Fulfills the task of the invention by the feature Claim 1. This ensures that the damping with decreasing Opening speed of the door decreases. Through this Arrangement is also achieved that the construction is also at Presence of such a damping device remains compact and occupies little stowage volume.

This measure will be particularly low Achieves friction losses and disturbing noises when opening and Closing the container avoided. As a viscous liquid can e.g. Serve fluid grease. To have a good function among all sorts To reach operating temperatures, the viscosity should be in Range from about -15 ° C to 55 ° C as constant as possible.

With reference to the accompanying drawings, an embodiment the invention described in more detail.

Fig. 1a eine Prinzipskizze eines Behälters mit einer Tür,

Fig. 1b bis 1d die Prinzipverläufe der von einer Vorrichtung zur Unterstützung der Bewegung der Tür in die geöffnete Stellung herrührenden Kraft F, der gewünschten resultierenden Kraft F_R sowie der daraus resultierenden Dämpfung δ in Abhängigkeit des Öffnungswinkels α der Tür,

Fig. 2a eine Ausführungsvariante eines erfindungsgemäßen Scharniers für ein Gepäckablagefach für Flugzeuge im Querschnitt,

Fig. 2b eine Draufsicht auf die Ausführungsvariante des Scharniers gemäß Fig. 2a.

Show:

1a is a schematic diagram of a container with a door,

1b to 1d show the basic characteristics of the force F resulting from a device for supporting the movement of the door into the open position, the desired resultant force F _R and the resulting damping δ as a function of the opening angle α of the door,

2a shows a variant of an inventive hinge for a luggage storage compartment for aircraft in cross-section,

Fig. 2b is a plan view of the embodiment of the hinge of FIG. 2a.

Fig. 1a shows a schematic representation of a container 1 with a pivotally mounted door 2. The opening angle of the door 2 is denoted by α. By a corresponding device for assisting the movement of the door 2 in the open position and holding the door 2 in the open position, a force F acts on the door 2 or a torque on the pivot axis of the door 2. As a result of the device used to support the movement of the door 2 in the open position, such as a spring od. Like., The force F is usually with the door closed 2 (ie α = 0 °) largest and becomes smaller with increasing opening angle α. This situation is illustrated in the diagram of FIG. 1b, which shows the force F as a function of the opening angle α. Of course, in practice this relationship will not necessarily be linear. These diagrams are for your convenience. The force F originating from the device for assisting the movement of the door 2 into its open position must be selected so that the door 2 is held in this position when the position is open (ie α maximum). Therefore, the force acting on the door 2 at the maximum opening angle F (α = max) must exceed the force acting on the door 2 gravity. As a result, however, an inadmissibly high force would act on the door 2 at the beginning of the opening of the door 2, which would result in an extremely fast swinging up of the door 2, which could injure persons. What is desired is a progression of the resultant force F _R as a function of the opening angle α, which is characterized by a minimum force with the door 2 F _{R closed} (α = 0) and by the maximum force with the door fully open 2 F _R (α = max) as shown in Fig. 1c. Therefore, an attenuation δ of the force F according to the course of FIG. 1d, ie falling attenuation δ with increasing opening angle α, is required.

Fig. 2a and 2b show a variant of an inventive Hinges for a luggage storage compartment 1 of an aircraft. It is at a luggage storage compartment 1, a door 2 at its upper Edge pivotally mounted. The hinge for the pivotal connection the door 2 on the luggage storage compartment 1 consists of two bearing plates 4, 5, one of which is a bearing plate 4, e.g. with help of screws 6 with the luggage tray 1 and the other bearing plate 5 e.g. connected by means of screws 7 with the door 2 becomes. The bearing plate 4 and the bearing plate 5 are over a Torsion spring 19 connected together. One end of the torsion spring 19 is rotatably with a rotary piston 20 with damping wing 21 connected, which in a chamber 22 with a viscous Liquid is rotatably arranged. Upon rotation of the rotary piston 20 in the chamber 22 is through the damper wings 21 the viscous liquid, e.g. Fluid grease displaced and thus a part the energy stored in the torsion spring 19 in displacement work transformed. The damping is independent in this case from the opening angle of the door 2 but depending on the Opening speed. The opening angle of the door can be through a resilient pressure piece 14 are limited. In open Position of the door 2, the spring force of the torsion spring 19th not dampened thereby ensuring a secure holding the door 2 becomes. A significant advantage of the viscosity damping is in the friction and thus low-wear embodiment, whereby the life of the hinge can be significantly increased can. In the aircraft industry, for example, more than 250,000 opening and closing cycles without significant functional deterioration be achieved. In the case of a linear compressive force for example, a stressed on pressure Coil spring or an elastic element may instead a rotary piston with damping wing also a piston in one be arranged with viscous fluid-filled chamber, wherein the piston perforations od. Like., Through which the Viscous fluid passes through and thus the movement delayed (not shown).

Claims (1)

1. A luggage compartment for aircraft, with a door, which door (2) is pivotably mounted on the luggage compartment (1) via at least one hinge or the like, and having means for holding the door (2) in the closed position, and having means for assisting the movement of the door (2) into the open position and holding the door (2) in the open position which essentially is arranged about the pivot axis of the door (2) and which is made with means for damping the movement of the door (2) such that the damping decreases as the rate at which the door (2) is opened decreases,
   wherein the means for assisting the movement of the door (2) into the open position and holding the door (2) in the open position is formed by at least one torsion spring (19) or the like arranged about the pivot axis of the door (2), and the means for damping the movement of the door (2) is formed by a rotating piston (20) which is rotatably arranged in a chamber (22) filled with viscous liquid and has damping vanes (21), characterised in that the means for damping the movement of the door (2) is arranged about the pivot axis of the door (2) and the rotating piston (20) is connected in a rotationally fixed manner to one end of the torsion spring or the like.

Images