DE102020001594A1 - Storage compartment for an aircraft and aircraft with the storage compartment - Google Patents

Abstract

There are known luggage compartments for aircraft, which are arranged in an overhead area of a passenger cabin and are used to accommodate items of hand luggage. The object of the invention is to propose a storage compartment which is characterized by an improved emergency function. For this purpose, a storage compartment 1 for an aircraft, with a stationary housing part 2 for attachment to an aircraft structure, with a movable housing part 3, which is relative to the stationary housing part 2 is movable between an open position O and a closed position S, with a spindle drive 4 for transmitting an actuating force to the movable housing part 3, wherein the spindle drive 4 has a drivable spindle 6 and a spindle nut 7 engaging with the spindle 6, the spindle 6 is connected to one housing part 2, 3 and the spindle nut 7 is connected to the other housing part 2, 3, the spindle nut 7 and the spindle 6 being movable relative to one another during a rotational movement of the spindle 6 in an axial direction with respect to an axis of rotation RA, proposed, wherein the spindle drive 4 is a between a Fr In the free-running state, the spindle drive 4 is decoupled from one of the two housing parts 2, 3 in at least one direction of movement and in the transmission state is coupled to the two housing parts 2, 3 in terms of movement.

Description

The invention relates to a storage compartment for an aircraft with the features of the preamble of claim 1. Furthermore, the invention relates to an aircraft with the storage compartment.

There are known luggage compartments for aircraft which are arranged in an overhead area of a passenger cabin of aircraft and are used to accommodate items of hand luggage. In principle, such overhead lockers have a chute which is movably mounted in a stationary housing and is lowered to open and raised to close. To support the opening and / or closing process, linear guide systems are known, for example, which are equipped with a drive device in order, for example, to apply a force-supporting torque to the chute.

The pamphlet DE 10001038 A1 , which is probably the closest prior art, discloses a luggage rack with a lowerable luggage compartment, in particular for an aircraft passenger cabin, the luggage compartment being lowerable from an upper closed position to a lower open loading position via at least one guide system. The luggage rack also has a drive device, a coupling device being provided for uncoupling the drive device from the guide system. It is particularly advantageous that luggage racks are equipped with motor-driven drive devices with an emergency function in order to enable the overhead locker to be opened and safely closed at any time and access to hand luggage is easily possible even if the drive fails. In particular, the drive device is designed as a spindle drive consisting of screw spindle, gear and drive motor, a slide connected to the overhead locker executing the spindle stroke by means of the screw spindle and a device for separating the screw spindle and slide being provided.

It is the object of the present invention to propose a storage compartment for an aircraft which is characterized by an improved emergency function.

This object is achieved by a storage compartment with the features of claim 1 and by an aircraft with this storage compartment with the features of claim 15. Preferred or advantageous embodiments of the invention emerge from the subclaims, the following description and the attached figures.

A storage compartment is proposed which is suitable and / or designed for an aircraft, in particular a passenger aircraft. The storage compartment can preferably be integrated or integrated into an aircraft cabin. In particular, the storage compartment is designed to be mounted in an overhead area above a seat area. The storage compartment is preferably designed as an overhead luggage compartment, also known as a so-called “OHSC” (Overhead Storage Compartment).

The storage compartment has a stationary housing part which is designed and / or suitable for attachment to an aircraft structure. In particular, the stationary housing part is fastened to the aircraft structure in a stationary manner within the aircraft cabin in the overhead area. The stationary housing part preferably has one or more mechanical interfaces for attachment to the aircraft structure. In particular, the stationary housing part comprises at least two housing side walls and a housing upper side, the two housing side walls preferably being followed by further storage compartments or end regions of a storage compartment row.

The storage compartment has a movable housing part which can be moved relative to the stationary housing part between an open position and a closed position. In particular, the movable housing part can be moved relative to the stationary housing part by a pivoting movement and / or a translational movement between the open position and the closed position. In particular, the movable housing part is moved from the closed position into the open position in order to open the storage compartment. In the same way, the movable housing part is moved from the open position into the closed position in order to close the storage compartment. In principle, the storage compartment can be designed as an immovable storage compartment, also known as a so-called “fix bin”, the movable housing part being designed as a flap that can be opened in order to fill the stationary housing part with stowed items. The storage compartment is preferably designed as a movable storage compartment, also known as a so-called “movable bin”, the movable housing part being designed as a chute that can be opened in order to fill the movable housing part with stowed items.

Furthermore, the storage compartment has a spindle drive which is designed and / or suitable for transmitting an actuating force to the movable housing part. In particular, the spindle drive serves to apply the actuating force to the movable housing part when it is opened and / or when it is closed. In principle, the spindle drive can be designed in such a way that the actuating force causes the movable housing part to open and / or close automatically. Alternatively, the spindle drive can be designed such that the Actuating force causes a force support when opening and / or closing the movable housing part.

The spindle drive has a drivable spindle. In particular, the spindle drive has a drive motor, preferably an electric motor, which is drive-connected to the spindle. In one operation, the drive motor drives the spindle, as a result of which the spindle executes a rotational movement directed about an axis of rotation. In addition, the spindle drive has a spindle nut in engagement with the spindle, the spindle and the spindle nut being and / or moving relative to one another based on the rotational movement in an axial direction with respect to the axis of rotation. In particular, the spindle nut is in engagement with the spindle via a ball screw drive or a roller screw drive or a sliding screw drive or a screw drive. To transmit the actuating force, the spindle is connected to one housing part and the spindle nut is connected to the other housing part.

In the context of the invention it is provided that the spindle drive has a freewheeling device which can be switched between a freewheeling state and a transmission state. In particular, the freewheeling device has the function of decoupling the drive motor at any time, in particular in the event of an emergency or fault, by switching from the transmission state to the freewheeling state. For this purpose, the spindle drive is decoupled from one of the two housing parts in the freewheeling state in at least or precisely one direction of movement and is coupled in terms of movement to the two housing parts in the transmission state. In particular, the spindle drive is decoupled in the freewheeling state when the movable housing part is opened, so that the movable housing part can be moved manually into the open position. Alternatively or optionally in addition, the spindle drive is decoupled in the freewheeling state when the movable housing part is closed, so that the movable housing part can be moved manually into the closed position. The transmission state is preferably defined as a basic state of the freewheeling device, with switching to the freewheeling state taking place automatically or by the user if necessary.

The advantage of the invention is, in particular, that the freewheel device ensures that the storage compartment is opened and / or closed in the event of a failure, defect or blockage of the spindle drive, in particular the drive motor. The freewheel device enables simple decoupling of the spindle drive, which can be easily integrated into the spindle drive. Another advantage is that the freewheel device requires little space and thus a compact design of the spindle drive is made possible.

In a specific embodiment it is provided that the spindle nut in the freewheeling state is decoupled from the associated housing part in at least one direction of rotation about the axis of rotation. The direction of rotation can optionally be a rotation of the spindle nut caused by the closing or opening of the movable housing part. In principle, in the freewheeling state of the freewheel device, the spindle nut can be decoupled from the housing part in the direction of rotation and coupled to the housing part in a rotationally fixed manner in a counter-rotation direction. Alternatively, in the freewheeling state of the freewheel device, the spindle nut can be decoupled from the housing part both in the direction of rotation and in the opposite direction of rotation. In the transmission state, the spindle nut is always non-rotatably coupled to the associated housing part. In particular, the non-rotatable coupling of the spindle nut with the corresponding housing part has the consequence that the actuating force with respect to the axis of rotation is transmitted to the movable housing part as a force directed in the axial direction. By arranging the freewheel device between the spindle nut and the associated housing part, a freewheel device is proposed which is distinguished by a structurally simple and inexpensive construction.

In a further specification, it is provided that the freewheeling device can be switched manually between the freewheeling state and the transmission state. In particular, the freewheeling device can be switched manually from the transmission state to the freewheeling state and / or from the freewheeling state to the transmission state. The freewheeling device can preferably be switched between the freewheeling state and the transmission state in a purely mechanical and / or electricity-free manner. Thus, the freewheel device can be operated at any time without the influence of external energy. As a result, a particularly reliable and robust freewheel device can be implemented.

In a further embodiment of the invention it is provided that the housing part belonging to the spindle nut has a receiving section which is designed and / or suitable for receiving the spindle nut. In particular, the spindle nut is positively received in the receiving section with respect to the axis of rotation in the axial and / or in the radial direction. In particular, the receiving section is formed by a hollow cylindrical housing. The receiving section can in principle be designed as a housing molded onto and / or injection-molded onto the movable housing part. The receiving section is preferably formed by a separate housing, which is positively and / or non-positively connected to the movable housing part. In particular, the receiving section can be arranged in an articulated and / or rotatable and / or tiltable manner on the movable housing part, so that the receiving section can be moved relative to the movable housing part when it moves.

In the freewheeling state, the spindle nut is rotatably mounted in the receiving section at least in one direction of rotation. In particular, in the freewheeling state, the rotational movement of the spindle is thus decoupled from the movement of the movable housing part and / or from the linear movement of the spindle nut. In the freewheeling state, a linear guide between the two housing parts is particularly preferably implemented by the decoupled spindle drive, in particular by the spindle nut rotatably arranged in the receiving section, so that the spindle is prevented from jamming when the movable housing part moves. Thus, in the event of a blockage by the drive motor, the storage compartment can easily be opened and / or closed, the manual force to be applied to open and / or close the movable housing part being able to be reduced considerably. In addition, the properties of the linear guidance of the spindle drive are also retained in the freewheeling state of the freewheeling device.

In a further embodiment of the invention it is provided that the freewheel device forms a direction-independent freewheel in the freewheeling state. In particular, a direction-independent freewheel is to be understood as a decoupling of the spindle drive which, in the freewheeling state, is implemented by the freewheel device both when opening and when closing the movable housing part. For this purpose, in the freewheeling state, the spindle nut is arranged in the receiving section so as to be rotatable both in the direction of rotation and in the opposite direction of rotation. This enables the storage compartment to be opened and closed independently of a direction of rotation of the spindle.

In a further specification, it is provided that the freewheel device has a safety device. The function of the securing member is to secure the spindle nut against rotation relative to the receiving section in the transmission state. In particular, the spindle nut is coupled non-rotatably to the receiving section via the securing element in a form-fitting and / or force-fitting manner. In the freewheeling state, the securing element is removed so that the spindle nut can be rotated in the receiving section in a direction-independent manner. The securing element can be removed manually by means of a rotating and / or plugging movement. In the same way, the safety device can be reassembled to switch the transmission state. Thus, a freewheel device is proposed which is characterized by a particularly simple and thus inexpensive design.

In a further specific embodiment it is provided that the receiving section and the spindle nut each have a securing receptacle. In particular, the fuse holder is each formed by a through opening, preferably a through hole, which are aligned with one another in the transmission state. The securing member is designed as a cotter pin, which is arranged in the securing receptacle in the transmission state and is removed from the securing receptacle in the freewheeling state. In principle, the safety cotter pin can be used as a standard cotter pin according to EN ISO 1234 or a cotter pin according to DIN 11023 be trained. However, the cotter pin is preferred as a spring pin according to FIG DIN 11024 educated. Thus, a freewheel device is proposed which is particularly easy to operate.

In an alternative embodiment it is provided that the freewheel device forms a direction-dependent freewheel in the freewheeling state. In particular, a direction-dependent freewheel is to be understood as a decoupling of the spindle drive, which in the freewheeling state is optionally implemented by the freewheel device when opening or closing the movable housing part. For this purpose, in the freewheeling state, the spindle nut is arranged rotatably in exactly one direction of rotation in the receiving section. A rotation of the spindle nut is blocked in the opposite direction of rotation, with a manual force to be applied to the movable housing part preferably being increased. This means that the storage compartment can either be opened or closed independently of the direction of rotation of the spindle.

In a further specification, it is provided that the spindle nut has a direction-dependent effective contour. In principle, the active contour can be arranged on an outer circumference of the spindle nut. However, the active contour is preferably arranged on an axial end face of the spindle nut. For example, the active contour can be formed by one or more depressions, for example a notch, bore or the like. The freewheel device has a latching element that can be brought into engagement with the active contour. For example, the latching member can be designed as a displaceable and / or rotatable pin, pawl, bolt or the like.

To form the transfer state, the locking member is in a transfer position and for Formation of the freewheeling state can be locked in a freewheeling position.

In the transfer position, the locking element is in engagement with the active contour in order to secure the spindle nut against rotation relative to the receiving section. In the transfer position, the locking element is preferably arranged in a form-fitting manner in the active contour in the direction of rotation and in the opposite direction of rotation. In particular, the locking member is fixed in the transfer position. In principle, the locking element can be fixed in the transmission state from the outside by a securing means. However, the latching element is preferably fixed in the transmission state by means of a self-locking mechanism and / or self-locking mechanism.

In the freewheeling position, the locking element is in operative connection with the operative contour in order to release a direction-dependent rotation of the spindle nut in one direction of rotation. In particular, the locking element can be moved relative to the active contour in the free-running position, the locking element running against the active contour when the spindle nut is rotated in the direction of rotation. The locking element is moved out of the active contour when it approaches the active contour, so that the spindle nut can be rotated freely in the direction of rotation. When the active contour is arranged on the outer circumference, the latching element can preferably be moved in the radial direction relative to the active contour. When the active contour is arranged on the axial end face, the latching element is preferably movable in the axial direction with respect to the axis of rotation. When the spindle nut is rotated in the opposite direction of rotation, the latching element forms a form fit with the operative contour and / or engages positively in the operative contour, so that the spindle nut is secured against rotation in the opposite direction of rotation. Thus, in the freewheeling state, the spindle nut can be rotated in the receiving section in a direction-dependent manner.

In a development it is provided that the active contour is formed by a receiving opening formed between the receiving section and the spindle nut. In principle, the receiving opening can be designed as a bore running in the radial direction with respect to the axis of rotation, which is preferably made at least approximately in equal parts in the spindle nut and the receiving section. Preferably, however, the receiving opening is designed as a bore running in the axial direction with respect to the axis of rotation, which is preferably made at least approximately in equal parts in the spindle nut and the receiving section. The latching member is movably arranged in the receiving opening between the transfer position and the freewheel position. In particular, the locking element can be transferred from the free-running position into the transfer position and / or from the transfer position into the free-running position by an insertion and / or rotary movement. The latching element is preferably arranged in the transfer position in an end region of the receiving opening and in the free-running position in an input region of the receiving opening. Thus, a direction-dependent freewheel device is proposed which is particularly easy to operate manually.

In an alternative or optionally additional development, it is provided that the active contour is formed by a run-on bevel arranged on the spindle nut. In this case, the run-on bevel has a profile that rises towards an outside of the spindle nut, so that when the spindle nut is rotated in the direction of rotation, the locking bolt is guided to the outside via the run-on bevel. In the case of an axial arrangement of the active contour, the run-on bevel is preferably arranged on the axial end face of the spindle nut. When the spindle nut is rotated in the direction of rotation, the latching element initially runs against the run-up bevel, as a result of which the latching element is moved out of the active contour in the axial direction. If the spindle nut is rotated further in the direction of rotation, the locking element then runs against the axial end face of the spindle nut until the effective contour is reached again. Alternatively, in the case of a radial arrangement of the active contour, the run-on bevel is arranged on an outer circumference of the spindle nut. When the spindle nut is rotated in the direction of rotation, the latching element initially runs against the run-up bevel, as a result of which the latching element is moved out of the active contour in the radial direction. If the spindle nut is rotated further in the direction of rotation, the locking element then runs against the outer circumference of the spindle nut until the active contour is reached again. The outer circumference is preferably defined by a cylinder jacket outer surface of the spindle nut. Particularly preferably, the run-up bevel is arranged in the entrance area of the receiving opening, so that the locking element is moved out of the receiving opening via the run-up bevel when the spindle nut is rotated in the direction of rotation. A freewheel device is thus proposed which enables the spindle nut to rotate in the direction of the run-on bevel and prevents it from rotating counter to the run-on bevel.

In a further embodiment it is provided that the locking element is acted upon by a spring force, so that the locking element automatically locks into the active contour when the spindle nut rotates about the axis of rotation. In particular, for this purpose, the locking element is acted upon by the spring force via a spring element, e.g. a helical spring.

The spring force is preferably directed from the freewheeling position in the direction of the transmission position. This ensures that the locking element automatically locks back into the active contour in the disengaged state, especially when it comes into contact with the outside of the spindle nut, when the spindle nut has been rotated completely, in particular by 360 °, about the axis of rotation.

In a further embodiment it is provided that the locking member has a lever arm at the end. In particular, a handle for manual actuation of the freewheel device is formed by the lever arm. The locking element can be moved manually between the free-running position and the transfer position via the lever arm. For example, the latching member is designed as a cylinder bolt or pin, the lever arm joining it at an angle at the end. A freewheel device is thus proposed which is characterized by operability.

In a further specific implementation, it is provided that the freewheel device has a guide sleeve which is designed and / or suitable for guiding the locking member. The guide sleeve is preferably fixed on the receiving section. For example, the guide sleeve can be fixed to the receiving section via a screw connection. In particular, the latching element is guided in a straight line between the transfer position and the freewheeling position in the guide sleeve. In the free-running position and in the transfer position, the locking member can be locked to the guide sleeve. In particular, the locking member is secured against rotation in the free-running position and / or in the transfer position in the guide sleeve. In particular, the guide sleeve has at least one securing contour, the latching element being in engagement with the at least one securing contour in the free-running position and / or in the transfer position via a mating contour. The mating contour is particularly preferably formed by the lever arm. It can thus be ensured that the locking element is secured in the freewheeling position or the transfer position and undesired releasing or blocking by the freewheeling device is prevented.

Another object of the invention relates to an aircraft which has at least one storage compartment, as has already been described above.

• 1 in einer perspektivischen Darstellung ein Staufach als ein Ausführungsbeispiel der Erfindung;
• 2a, b unterschiedliche Detailansichten eines Spindelantriebs mit einer richtungsunabhängigen Freilaufeinrichtung für das Staufach aus 1;
• 3a, b unterschiedliche Detailansichten eines Spindelantriebs einer richtungsabhängigen Freilaufeinrichtung für das Staufach aus 1;
• 4a, b unterschiedliche Ansichten der richtungsabhängigen Freilaufeinrichtung aus den 3a, b;

Further features, effects and advantages of the invention emerge from the following description of a preferred exemplary embodiment of the invention and the attached figures. Show:

• 1 a perspective view of a storage compartment as an embodiment of the invention;
• 2a, b different detailed views of a spindle drive with a direction-independent freewheel device for the storage compartment 1 ;
• 3a, b different detailed views of a spindle drive of a direction-dependent freewheel device for the storage compartment 1 ;
• 4a, b different views of the directional freewheel device from the 3a, b ;

1 shows a storage compartment in a perspective view 1 , which is used for arrangement in an overhead area of a passenger cabin of an aircraft, in particular a passenger aircraft. The storage compartment 1 has a stationary housing part 2 as well as a movable housing part 3 on which relative to the stationary housing part 2 between an open position O and a closed position S. is movable. In the embodiment shown is the storage compartment 1 designed as a pivotable storage compartment, the stationary housing part 2 as a housing that can be mounted on an aircraft structure of the aircraft and the movable housing part 3 one in the housing about a pivot axis SA pivotably mounted chute is designed to hold items such as hand luggage.

By a first swivel movement around the swivel axis SA towards the open position O , becomes the movable housing part 3 from the stationary housing part 2 swiveled out, making the storage compartment 1 is opened for loading by a user. By a second swivel movement around the swivel axis SA towards the closed position S. , becomes the movable housing part 3 in the stationary housing part 2 swiveled in, making the storage compartment 1 is closed. 1 shows the open storage compartment 1 with the movable housing part 3 in the open position O .

Furthermore, the storage compartment 2 a spindle drive 4th , only indicated schematically, which on the one hand on the stationary housing part 2 and on the other hand for transmitting an actuating force to the movable housing part 3 is fixed on this. The spindle drive is used, for example 4th for power support of the movable housing part 3 from the open position O in the closed position S. and / or from the closed position S. in the open position O . Alternatively, the spindle drive is used to automatically open and / or close the movable housing part 3 .

The spindle drive 4th includes an electric drive motor 5 , a spindle 6th as well as a Spindle nut 7th . The drive motor 5 is drive technology with the spindle 6th connected, with the spindle 6th in one operation by the drive motor 5 around an axis of rotation RA is rotated. The drive motor 5 is on the stationary housing part 2 set. The spindle nut 7th stands with the spindle 6th engaged, the spindle nut 7th on the movable housing part 3 is fixed and / or determinable. When the spindle rotates 6th around the axis of rotation RA guides the spindle nut 7th a linear movement along the axis of rotation RA off to the movable housing part 3 to apply the actuating force.

For safety reasons, the storage compartment should also be opened and / or closed in the event of a failure, defect or blockage of the spindle drive 4th continue to be guaranteed. Usually, in the event of a defect that does not block the drive motor 5 leads to an opening or closing of the movable housing part 3 by overcoming the motor, gear and spindle resistance forces of the spindle drive 4th take place. As a rule, however, this requires very high manual forces, whereby opening or closing is no longer possible in the event of a blockage. Locking gears or clutches are known from the prior art, which enable the drive motor to be decoupled. However, these require a lot of space and are usually heavy. A solution is therefore to be created which is characterized by a compact design and complete decoupling of the spindle drive 4th from the movable housing part 3 excels.

The 2a shows the spindle drive 4th with a freewheel device 8th in a perspective detailed view as a first embodiment of the invention. The freewheel device 8th can be switched between a freewheeling state and a transmission state, with the spindle nut 7th in the freewheeling state from the movable housing part 3 decoupled and in the transmission state with the movable housing part 3 is motion-coupled. In the event of a defect in the drive motor 4th can the freewheel device 8th be switched to the freewheeling state, the rotational movement of the spindle in the freewheeling state 6th from the pivoting movement of the movable housing part 3 is decoupled.

The freewheel device 8th has a receiving portion 9 to accommodate the spindle nut 7th on, with the spindle nut 7th rotatable in the freewheeling state and non-rotatably in the receiving section in the transmission state 9 is stored. The receiving section 9 is designed as a hollow cylindrical housing which has a swivel joint 10 on the movable housing part 3 is pivotally mounted. The spindle nut 7th is in the receiving section 9 in the radial and in the axial direction with respect to the axis of rotation RA positively recorded.

The freewheel device 8th has a security body 11 on which the spindle nut 7th in the transmission state against rotation in the receiving section 8th secures. The security body 11 is designed as a spring pin, which is transverse to the axis of rotation RA through the receiving section 9 in the spindle nut 7th is plugged in the radial direction. As in 2 B shown, the receiving portion 9 a backup recording 12th on which through several through opening 12th is formed by which the security organ 11 is pushed through. For example, the spindle nut 7th also through openings or depressions to form the fuse holder 12th have, which for the assembly of the securing member 11 aligned with the through openings of the receiving section 9 are aligned.

In normal operation when the spindle 6th by the drive motor 4th is driven, is the freewheel device 8th in the transmission state so that the spindle nut 7th against rotation in the receiving section 9 is secured. The rotational movement of the spindle 6th is in a linear movement of the spindle nut 7th converted which via the receiving section 9 on the movable housing part 3 than the operating force is transmitted. To the freewheel mechanism 8th To switch from the transmission state to the freewheeling state, the safety device 11 removed so that the spindle nut 7th in the receiving section 9 to create a direction-independent freewheel in one direction of rotation DR and in a reverse direction of rotation GR around the axis of rotation RA can rotate. The freewheel device 8th thus enables the spindle nut to rotate on both sides 7th in the receiving section 9 so that the rotation of the spindle 6th or the spindle nut 7th now no more linear motion required. At the same time remains through the guidance of the spindle nut 7th in the receiving section 9 a linear guide of the spindle 6th when pivoting the movable housing part 3 obtain. To the freewheel mechanism 8th To switch back to the transmission state, the through openings or depressions of the spindle nut must 7th with the through openings of the receiving section 9 align and the security organ 11 then back into the backup receptacle 12th be plugged in.

By switching the freewheel device 8th in the freewheeling state, the movable housing part 3 even if the drive motor is blocked 5 both in the open and in the closed position S. move almost without resistance. This allows the manual forces required to open or close the movable housing part in the event of a fault 3 can be significantly reduced. Thus, for example, in the event of a fire, the storage compartment 1 be opened even if the drive motor 5 is defective or de-energized. In addition, the freewheel device 8th takes up little space and can easily be inserted into the spindle drive 4th to get integrated. Furthermore, the property of the linear guide of the spindle remains 6th also in the freewheeling state of the freewheeling device 8th obtain.

the 3a, b show part of the spindle drive in two different perspective detailed views 4th with an alternative freewheel device 8th as a second embodiment of the invention. The freewheel device 8th can be switched, as already described above, between a freewheeling state and a transmission state, with the spindle nut 7th in the transmission state with the movable housing part 3 is motion-coupled. In contrast, the spindle nut is in the freewheeling state 7th only in the direction of rotation DR from the movable housing part 3 is decoupled and in the opposite direction of rotation GR continue with the movable housing part 3 motion-coupled. In the event of a defect in the drive motor 4th can the freewheel device 8th be switched to the freewheeling state, the rotational movement of the spindle in the freewheeling state 6th optionally from the pivoting movement of the movable housing part 3 in the open position O or in the closed position S. is decoupled.

As already described above, the freewheel device 8th the receiving section 9 to accommodate the spindle nut 7th on in which the spindle nut 7th in the freewheeling state at least in the direction of rotation DR rotatable and non-rotatable in the transmission state in the receiving section 9 is stored.

The freewheel device 8th has a spring-loaded locking element 13th on, which is in the axial direction with respect to the axis of rotation RA in a guide sleeve 14th is led. The locking organ 13th is designed for this purpose as a cylindrical bolt, which is in the guide sleeve 14th between a transfer position P1 and a freewheel position P2 is lockable. The locking organ 13th is over the guide sleeve 14th on the receiving portion 9 mounted, with the guide sleeve 14th for this purpose, for example, in the receiving section 9 can be screwed in. In the transfer position P1 , as in 3a shown, the transmission state is switched and the spindle nut 7th against twisting in the receiving section 8th secured. In the freewheel position P2 the freewheeling state is switched and the spindle nut is rotated 7th in the direction of rotation DR released and in the opposite direction of rotation GR locked. The freewheel device thus enables 8th a rotation of the spindle nut 7th in only one direction, with no rotation of the spindle nut in the opposite direction 7th is possible.

As in 3b shown, has the spindle nut 7th a direction-dependent active contour 17th on, which by a between the receiving portion 9 and the spindle nut 7th arranged receiving opening 15th for receiving the locking organ 13th is formed. For example, the receiving opening 15th by one on an axial end face 16 the spindle nut 7th arranged blind hole formed, which in equal parts in the spindle nut 7th and the receiving section 9 in the axial direction with respect to the axis of rotation RA is introduced. In the transfer position P1 is the locking organ 13th in a fully extended state, so that the locking element 13th in an end area B1 of the receiving opening 15th is arranged. The locking member is in the end area B1 13th with the spindle nut 7th so engaged that rotation of the spindle nut 7th is prevented.

Furthermore, the active contour 17th through one in an entrance area B2 of the receiving opening 15th , in particular in the area of the hole edge, arranged run-up bevel 18th educated. The approach slope 18th points one to an outside A. the spindle nut 6th increasing course. In the freewheel position P2 is the locking organ 13th in a partially extended state, so that the locking element 13th in the entrance area B2 of the receiving opening 15th is arranged. When the spindle nut rotates 7th in the direction of rotation DR meets this in the freewheel position P2 arranged locking member 13th on the run-up slope 18th , whereby the locking organ 13th runs against this and in the direction of the outside A. contrary to one on the locking organ 13th acting spring force F. is pressed. When the locking organ 13th completely with the receiving opening 15th is disengaged, the locking element runs 13th on the outside A. , especially the axial face 16 the spindle nut 7th on, after one complete revolution of the spindle nut 16 the locking organ 13th springs automatically back into the entrance area B2 of the receiving opening.

Is the locking organ 13th arranged in the input area B2 and becomes the spindle nut 7th in the opposite direction of rotation GR twisted, the spindle nut can turn 7th due to the raster organ 13th , which without a bevel 18th is not pushed outwards, do not turn. One rotation of the spindle nut 7th is thus corresponding to an alignment of the run-up slope 18th possible. The freewheel device 8th thus enables one-sided rotation of the spindle nut 7th in the receiving section 9 so that the rotation of the spindle 6th or the spindle nut 7th in one direction no linear movement is required and in the other direction it is dependent on the spindle pitch and / or the spindle speed. This can be used, for example, when to dampen the opening process of the storage compartment 1 the inertia and drag forces of the drive motor 5 should be used. This enables the spindle drive 4th as a kind of damper for opening the movable housing part 3 from the closed position S. in the open position O to use, creating a standard damper of the storage compartment 1 can be omitted.

To the freewheel mechanism 8th To switch back to the transmission state, the locking element becomes 13th from the freewheel position P2 in the locked position P1 brought and the spindle nut 7th rotates until the locking element 13th in the end area B1 of the receiving section 15th engages automatically.

the 4a, b each show the freewheel mechanism 8th from the 3a, b . As in 4a shown are in the guide sleeve 14th two different long grooves 19a , b introduced as a securing contour, whereby through the first groove 19a the transfer position P1 and through the second groove 19b the freewheel position P2 is defined. The locking organ 13th has a lever arm at its axial end 20th as a securing counter contour, which as a handle for manual operation of the freewheel device 8th serves. The locking organ 13th is about the lever arm 20th optionally in the first or the second groove 19a , b guided in the axial direction and secured against rotation.

The locking member has at the other axial end 13th another bevel 21 on which one is complementary to the run-up bevel 18th the spindle nut 7th is. When the spindle nut is twisted 7th as a result of a pivoting movement of the movable housing part 3 , the two bevels run 21 with an arrangement of the locking member 13th in the freewheel position P2 to each other. The additional run-up bevel 20th a wedging of the locking member 13th can be reduced so that the functional reliability is increased.

To the locking organ 13th from the transfer position P1 in the freewheel position P2 to bring must the locking organ 13th first in the axial direction in the guide sleeve 14th at the level of the second groove 19b be moved. Then the locking organ 13th over the lever arm 20th at an angle W. for example 60 degrees, as in 4b shown in the second groove 19b pivoted and in the free-running position P2 latched. In the same way, the locking member 13th again from the freewheel position P2 in the transfer position P1 be convicted. This is a particularly easy-to-use freewheel device 8th suggested.

List of reference symbols

1

Storage compartment

2

stationary housing part

3rd

movable housing part

4th

Spindle drive

5

Drive motor

6th

spindle

7th

Spindle nut

8th

Freewheel device

9

Receiving section

10

Swivel joint

11

Security body

12th

Backup recording

13th

Locking organ

14th

Guide sleeve

15th

Receiving opening

16

axial face

17th

Knitting contour

18th

Approach slope

19a, b

Grooves

20th

Lever arm

21

further bevel

A.

Outside

F.

Spring force

O

Open position

S.

Closed position

W.

angle

P1

Transfer position

P2

Freewheel position

DR

Direction of rotation

GR

Opposite direction of rotation

RA

Axis of rotation

SA

Swivel axis

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 10001038 A1 [0003]

Non-patent literature cited

• EN ISO 1234 [0019]
• DIN 11023 [0019]
• DIN 11024 [0019]

Claims (15)

Storage compartment (1) for an aircraft, with a stationary housing part (2) for attachment to an aircraft structure, with a movable housing part (3), the movable housing part (3) being between an open position (O) relative to the stationary housing part (2) and a closed position (S) is movable, with a spindle drive (4) for transmitting an actuating force to the movable housing part (3), the spindle drive (4) having a drivable spindle (6) and one in engagement with the spindle (6) Has spindle nut (7), the spindle (6) being connected to one housing part (2, 3) and the spindle nut (7) being connected to the other housing part (2, 3), the spindle nut (7) and the spindle (6 ) are movable relative to one another during a rotational movement of the spindle (6) in an axial direction with respect to an axis of rotation (RA), characterized in that the spindle drive (4) is switchable between a freewheeling state and a transmission state Having freewheel device (8), the spindle drive (4) being decoupled from one of the two housing parts (2, 3) in at least one direction of movement in the freewheeling state and being coupled in terms of movement to the two housing parts (2, 3) in the transmission state. Storage compartment (1) Claim 1 , characterized in that the spindle nut (7) in the freewheeling state is decoupled from the associated housing part (2, 3) in at least one direction of rotation (DR) and that the spindle nut (7) in the transmission state with the associated housing part (2, 3) is rotatably coupled. Storage compartment (1) Claim 1 or 2 , characterized in that the freewheeling device (8) can be switched manually between the freewheeling state and the transmission state. Storage compartment (1) according to one of the preceding claims, characterized in that the housing part (2, 3) belonging to the spindle nut (7) has a receiving section (9) for receiving the spindle nut (7), the spindle nut (7) in the freewheeling state is rotatable in at least one direction of rotation (DR) in the receiving section (9) and is fixed on the receiving section (9) in the transmission state. Storage compartment (1) according to one of the preceding claims, characterized in that the freewheel device (8) forms a direction-independent freewheel in the freewheeling state, the spindle nut (7) in the freewheeling state both when opening and when closing the storage compartment (1) of the movable housing part (3) is decoupled. Storage compartment (1) Claim 5 , characterized in that the freewheel device (8) has a securing element (11), the securing element (11) securing the spindle nut (7) against rotation relative to the receiving section (9) in the transmission state and the securing element (11) in is removed from the freewheeling state, so that the spindle nut (7) can be rotated in the receiving section (9) in any direction. Storage compartment (1) Claim 6 , characterized in that the receiving section (9) and the spindle nut (7) each have a securing receptacle (12) and that the securing member (11) is designed as a securing pin, the securing pin being arranged in the securing receptacle (12) in the transfer state and is removed in the idle state. Storage compartment (1) after one of the Claims 1 until 4th , characterized in that the freewheel device (8) forms a direction-dependent freewheel in the freewheel state, the spindle nut (7) in the freewheel state optionally being decoupled from the movable housing part (3) when opening or closing the storage compartment (1). Storage compartment (1) Claim 8 , characterized in that the freewheel device (8) has a locking element (13) and the spindle nut (7) has a direction-dependent active contour (18), the locking element (13) for forming the transmission state in a transmission position (P1) and for forming the freewheeling state can be latched in a free-running position (P2), the latching element (13) being in engagement with the active contour (17) in the transfer position (P1) in order to secure the spindle nut (7) against rotation relative to the receiving section (9), and wherein the locking element (13) in the free-running position (P2) is in operative connection with the operative contour (17) in order to release a direction-dependent rotation of the spindle nut (7) in one direction of rotation (DR). Storage compartment (1) Claim 9 , characterized in that the active contour (15) is formed by a receiving opening (15) formed between the receiving section (9) and the spindle nut (7), the latching element (13) in the receiving opening (15) between the transfer position (P1) and the free-running position (P2) is movably arranged, Storage compartment (1) Claim 9 or 10 , characterized in that the active contour (17) is formed by a run-on bevel (18) arranged on the spindle nut (7), the run-on bevel (18) having a profile that rises towards an outside (A) of the spindle nut (7), so that the Locking bolt (13) when turning the spindle nut (7) is guided in the direction of rotation (DR) over the run-up bevel (18) to the outside (A). Storage compartment (1) after one of the Claims 9 until 11 , characterized in that the locking element (13) is acted upon by a spring force (F) so that the locking element (13) automatically locks into the active contour (17) when the spindle nut (7) rotates about the axis of rotation (RA). Storage compartment (1) after one of the Claims 9 until 12th , characterized in that the locking element (13) has a lever arm (20) at the end, the locking element (13) being manually movable between the free-running position (P1) and the transfer position (P2) via the lever arm (20). Storage compartment (1) after one of the Claims 9 until 13th , characterized in that the freewheeling device (8) has a guide sleeve (14) for guiding the locking member (13), the locking member (13) in the free-wheeling position (P1) and in the transfer position (P2) with the guide sleeve (14). is lockable. Airplane with the storage compartment (1) according to one of the preceding claims.

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