Storage compartment lock for a storage compartment of a vehicle and storage compartment of a motor vehicle with such a storage compartment lock
The storage compartment lock with a direct worm gear and lever element design addresses the complexity and cost issues of existing systems, offering a simple, reliable, and secure locking solution for vehicle compartments.
Patent Information
- Application Number
- DE202024104076
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-12-04
- Estimated Expiration
- 2034-07-31
Smart Images

Figure 00000000_0000_ABST
Abstract
Description
[0001] The present application relates to a storage compartment locking device for a storage compartment of a vehicle and to a storage compartment of a vehicle with such a storage compartment locking device.
[0002] Motor vehicles feature a variety of storage compartments and trays within their interiors, which can be used to stow small items such as drinks, documents, keys, mobile phones, and the like. These compartments and trays may also include additional functional elements such as cup holders, USB ports, and the like. They can be integrated into the interior trim or located in other areas of the passenger compartment.
[0003] For example, a glove compartment is generally integrated into the dashboard of a motor vehicle, providing storage space that can be opened or closed via a flap. Furthermore, armrests are common; these may be located, for example, in a center console and have a hinged cover that can be folded into an open position, providing access to the storage space, and a closed position, in which the storage space is closed.
[0004] Various locking or latching systems are known for storage compartments that can be closed by means of a flap. These systems serve to either lock or release the flap to the storage compartment housing. In the simplest case, latches with a detent function can be provided, which hold the flap in position by snapping it against the storage compartment housing. Latches with a tensioning function have also been used, which lock the cover flaps of storage compartments, for example glove compartments, by a 180° rotation of an operating handle. In this case, a locking tongue can be positioned behind a kind of frame, and a subsequent axial tensioning stroke presses the locking tongue securely against the cover. Manual locking systems can function correctly, but are less suitable for use in modern and especially high-quality motor vehicles.They offer little user comfort and can be damaged if misused, for example, by applying excessive force. Furthermore, unauthorized persons can easily gain access to the storage space.
[0005] Electrically operated locking systems with a locking mechanism are also known in practice. These systems actuate a locking bolt, for example, via a pull magnet or an electric motor with a downstream power transmission mechanism, to selectively unlock it. The unlocking can be triggered by the driver by pressing a switch, button, or similar device. Such locking systems can simplify operation for the user and offer a certain degree of access security. However, they generally comprise many components, which can result in considerable manufacturing, assembly, and cost complexity. There is a need for less complex electrically operated locking systems that can be manufactured and installed simply and cost-effectively, and that provide the necessary reliability and security when locking and unlocking a storage compartment flap.
[0006] Based on this, it is an object of the invention to improve the locking systems known from the prior art and in particular to create a storage compartment lock for a storage compartment of a vehicle as well as a storage compartment of a motor vehicle with such a storage compartment lock, which offer the convenience and safety of an electric operation with a design that comprises as few components as possible and can be manufactured and assembled simply and cost-effectively, so that they are suitable for applications in vehicles, in particular motor vehicles.
[0007] This problem is solved by a storage compartment locking mechanism for a storage compartment of a vehicle, having the features of independent claim 1, and a storage compartment of a vehicle having the features of dependent claim 17. Particularly preferred embodiments are specified in the dependent claims.
[0008] According to a first aspect of the invention, a storage compartment lock for a vehicle storage compartment is provided, comprising a housing, at least one locking bolt, an electric drive, and a lever element. The at least one locking bolt has a base body, which is slidably mounted in the housing, for example, along its longitudinal extent, and a bolt head that is fixedly connected to the base body, preferably integrally formed with it. The bolt head can be selectively moved by displacing the base body either into a fully extended position, in which it projects maximally from the housing, or into a fully retracted position, in which it is at least largely inserted into the housing. The electric drive is arranged in the housing and comprises an electric motor and a worm gear driven by the electric motor.The lever element is pivotally mounted in the housing and directly operatively connected to the worm gear in such a way that a rotary movement of the electric motor is immediately converted into a pivoting movement of the lever element via the worm gear. The lever element has a lever arm that engages with the base body of the at least one locking bolt in order to convert a pivoting movement of the lever element into a sliding movement of the at least one locking bolt.
[0009] Thus, a storage compartment lock for a vehicle storage compartment, preferably a motor vehicle, has been created that comprises only a few components and is relatively simple and inexpensive to construct. This significantly reduces the number of components and costs compared to conventional electrically operated locking systems for vehicle storage compartments, while offering the user ease of use, high user comfort, and a high level of security. Advantageously, no force or assistance from the user is required for the unlocking process. The user can trigger the unlocking process easily, quickly, and conveniently via an input, for example, using an operating switch, a button on a control panel (such as a touch-sensitive screen or touchscreen of a combined input and / or output device in the vehicle), a remote control, voice control, or other means.The electric operation, using the electric drive and lever element, ensures reliable unlocking of at least one locking bolt. Advantageously, only the driver or other authorized persons, for example, after vehicle access control, can trigger the unlocking of the storage compartment. The storage compartment lock is well-suited for use in the automotive sector.
[0010] In the sense used here, "directly functionally connected" means that no further means or gear elements for power transmission are arranged between the worm gear and the lever element. The lever element is thus directly connected to the worm gear. This reduces the number of components interacting for power transmission and motion conversion, which in turn results in reduced backlash and noise. The simple power transmission mechanism according to the invention enables high efficiency, robustness, and reliability in operation.
[0011] In one embodiment, the housing of the storage compartment lock can comprise a base plate, a side wall rigidly connected to the base plate, and a housing cover that is detachably connected to the side wall and the base plate. For example, the detachable connection can be achieved using detent devices, such as detent lugs with associated locking tabs. A screw connection is also possible in principle, although more complex. The base plate, the side wall, and the housing cover define an interior space between them, in which the components of the storage compartment lock are housed. The housing can have an opening on one front side through which the control head can protrude from the interior of the housing in the locked position to achieve the locking function. The housing components can be manufactured cost-effectively, preferably from plastic, for example, by injection molding or thermoforming.It is understood that the housing parts may also be made from other materials, such as sheet metal, steel or the like, and may each comprise several prefabricated parts which may be joined together by gluing, welding or other joining methods.
[0012] In one embodiment, the base body of the at least one locking bolt has an elongated, straight cylindrical shape and can carry guide rails extending along its longitudinal extent on two opposite sides. These guide rails are slidably guided in guide rails formed on the housing. The guide rails can be provided on the base plate and / or the side wall of the housing and are preferably integrally formed therein. This simplifies manufacturing and eliminates the need for additional parts for the guide mechanism.
[0013] The bolt head of the at least one locking bolt can be wedge-shaped with a locking surface and an inclined ramp surface opposite the locking surface. When a storage compartment cover flap is closed, the ramp surface interacts, for example, with a locking bar or other locking element attached to the cover flap, to press the at least one locking bolt into the housing and into its fully engaged position, particularly against the action of a spring or the like. The locking surface interacts with the locking bar or other locking element to keep the cover flap securely closed in the locked position and to prevent accidental or unauthorized opening of the cover flap without triggering the release mechanism.
[0014] In an advantageous embodiment, the at least one locking bolt can have a lug projecting beyond a surface of the base body, which can be arranged and configured to engage with the lever element. Preferably, the lug engages directly with the lever element, where "direct engagement" means that the lever element acts directly on and against the locking bolt, in particular the lug. No intervening means are involved, so the design requires few parts and is simple and cost-effective. In principle, the lever element could also engage indirectly with the at least one locking bolt, in particular the lug on the base body, via a coupling element, for example, if the storage compartment lock contains two locking bolts. The lug can preferably be manufactured integrally with the base body.Alternatively, though less preferred, it could also be manufactured separately and attached to the base body. Other sections of the locking bolt could also be designed to engage with the lever element.
[0015] In advantageous embodiments, the at least one locking bolt can be biased towards its disengaged position by a biasing device, in particular a compression spring. The biasing device can, for example, press the at least one locking bolt directly against the lever element and keep it in contact with the lever, thus counteracting any displacement of the locking bolt into the housing and any corresponding pivoting movement of the lever element. The biasing device can also enable the locking mechanism to return to its original position.
[0016] In a particularly preferred embodiment, the worm gear can be designed as a non-self-locking worm gear so that forces and movements can be transmitted or converted in both directions from the motor to the at least one locking bolt and vice versa. By rotating the motor, the lever element can be pivoted such that the locking bolt is drawn into the housing, or conversely, the preload force of the preloading device can act without motor actuation to move the locking bolt out of the housing and thereby pivot the lever element back in the opposite direction. The return pivoting movement can then be converted via the non-self-locking worm gear into a rotation of the drive shaft in the opposite direction to the drive movement. In any case, the lever element can be returned to its initial position.
[0017] In an advantageous embodiment, the worm gear comprises a worm shaft formed by a helical output shaft of the electric motor, or a worm wheel fixed to the output shaft of the electric motor, and a worm wheel element formed integrally with the lever element. A separate worm wheel is not required. The lever element and the worm wheel element are integrally formed as a single component, thus reducing the number of components.
[0018] In an advantageous implementation, the worm gear element on the lever element can be designed as a gear segment bounded by a segment angle range greater than 0° and less than 45°, preferably less than 30°, and particularly preferably less than 20°. The gear segment thus does not cover the entire circumference of the gear, but only forms a section or part of it. The segment angle range spanned by the gear segment is very small, so that the worm gear element is also significantly smaller compared to a solid gear and requires less installation space. The design is lightweight and simple.
[0019] The lever element can be particularly advantageously configured as a double-sided lever element, comprising a (first) lever arm that preferably engages directly with the at least one locking bolt, and a further (second) lever arm that is operatively connected to the worm gear and on which the gear segment is formed. The double-sided lever enables the very efficient transmission of forces, the balancing of loads, and, in the case of a non-self-locking worm gear, the transmission of movements in both directions from the worm gear to the at least one locking bolt and vice versa.
[0020] An emergency release mechanism for the storage compartment lock can be implemented to allow the lock to be unlocked in the event of a failure of the electric motor or power supply. For this purpose, in one embodiment, the additional lever arm can have a projection that extends in a direction essentially perpendicular to a pivot plane of the lever element. The housing, for example, the housing cover, can have a through-opening through which the projection is accessible from the outside. For example, the projection can be located opposite the through-opening or even project outwards through it, so that it can be grasped and pivoted from the outside, either by hand or with a tool, to enable the emergency release.
[0021] In one configuration of the storage compartment lock of any of the aforementioned embodiments, the at least one locking bolt can be the only locking bolt of the storage compartment lock, and the lever element can then preferably engage directly with the single locking bolt. For example, the lever arm of the lever element can engage directly with the lug molded onto the locking bolt. Without interposed elements, the design can be implemented particularly simply and cost-effectively, with few parts, and in a compact form. This also provides the basis for high reliability and durability of the design.
[0022] In another configuration of the storage compartment locking mechanism described above, the at least one locking bolt can have a first elongated locking bolt and a second elongated locking bolt. The two locking bolts can be arranged parallel to each other and spaced apart within the housing and slidably mounted. Preferably, each locking bolt is biased towards its disengaged position by its own separate biasing device, for example, a compression spring. This allows each locking bolt to be pressed into the housing independently of the other when external force is applied, without affecting the state of the other locking bolt. This can be particularly advantageous for double-leaf cover flaps of armrests, enabling the two cover flap halves to be closed independently of each other.
[0023] In order to unlock the first and second locking bolts simultaneously in the configuration described above, an advantageous embodiment provides a coupling element that is slidably mounted in the housing and effectively coupled between the lever element on the one hand and the first and second locking bolts on the other. This allows a pivoting movement of the lever element to be converted, via the coupling element, into a coupled sliding movement of both the first and second locking bolts. However, the first and second locking bolts are each designed to be retracted into the housing independently of the other locking bolt and the coupling element when an external force is applied to their respective bolt heads. Both locking bolts can then be unlocked together and simultaneously and locked independently of each other.
[0024] In a further development, the coupling element can be designed for an emergency release of the storage compartment lock. For this purpose, a section of the coupling element can be accessible from the outside through a through-opening in the housing, so that it can be grasped and moved from the outside, if necessary with a tool, in order to move the first and second locking bolts into their fully engaged position as required and to enable an emergency release.
[0025] The storage compartment lock according to the invention allows a user to request and initiate automatic unlocking of the storage compartment lock by means of an input, thereby opening the storage compartment. The input can be made by touching a touch switch or touch field on an input unit, for example, on the vehicle's instrument cluster, by a voice command, a movement command, or the like. To accomplish the automated unlocking, a control unit is preferably provided, which is associated with the storage compartment lock and is configured to receive an input signal indicating the operator's wish to open the storage compartment and to then cause the electric motor to be appropriately energized. The input signal can originate from a sensor that detects the driver's input.The control system can advantageously supply the electric motor with a current pulse of limited duration, for example 30-70 ms, preferably about 50 ms, to move the locking head into the fully engaged position. Once this position is reached, a suitable mechanism, for example a spring-loaded or motor-driven mechanism, can ensure that the storage compartment cover is automatically moved to at least a slightly open position, whereupon the cover can be fully opened to provide access to the storage compartment. The mechanism can also fully open the cover.
[0026] When the control unit interrupts the power supply to the electric motor after a limited time, at least one locking bolt can be automatically returned to its disengaged position by the associated preloading device, for example, a compression spring. Simultaneously, the lever element is also pivoted back to its starting position. This is permitted by the non-self-locking worm gear of the electric drive.
[0027] According to a further aspect of the invention, a storage compartment of a vehicle, in particular a motor vehicle, is provided, comprising a storage compartment housing, at least one cover flap, a storage compartment lock, and a locking element. The storage compartment housing defines a cavity that forms the storage space. The cover flap is movably arranged on the storage compartment housing so that the cover flap can move between an open position, in which the cavity is open to the outside, and a closed position, in which the cavity is closed to the outside. For example, the cover flap can be pivotally mounted about a horizontal axis. The storage compartment lock is constructed according to any embodiment described above and is attached to a component separated from the cover flap and the storage compartment.The locking element is designed to interact with the bolt head of at least one locking bolt of the locking mechanism to lock the cover flap in the closed position. The locking element is attached to the other side of the cover flap and the storage compartment housing. Preferably, the storage compartment lock is attached to the storage compartment housing, while the locking element is attached to the cover flap. The reverse arrangement is also possible.
[0028] The locking part may, for example, be a locking bolt part or a hook part, which includes a receiving opening for receiving the bolt head of the at least one locking bolt in the closed position and a wall or bolt or hook section limiting the receiving opening, which engages with the locking surface and the ramp surface of the bolt head to enable the proper functioning of the storage compartment locking mechanism as described herein.
[0029] The storage compartment can be any compartment or cavity for storing items in a vehicle, which can be closed by a cover flap. In particularly preferred applications, the storage compartment can be a glove compartment integrated into the dashboard of a motor vehicle. It can also be a separate component that can be inserted into the dashboard. In other preferred applications, the storage compartment can be an armrest or armboard, provided, for example, in an area of a center console or rear seat console of a motor vehicle, and comprising a lockable storage space. A storage compartment lock with two locking bolts is particularly suitable for double-winged armrests that have two cover flaps or lid halves covering different areas of the storage space.The two cover flaps or lid halves can be unlocked and opened together at the push of a button or similar, and then closed and locked independently of each other.
[0030] The different embodiments of the storage compartment locking mechanism according to the invention can be implemented in the storage compartment according to the invention, and their advantages, in particular the simple and cost-effective construction, the ease of handling and the user-friendliness, also benefit the storage compartment as a whole.
[0031] Further advantageous embodiments of the invention will become apparent from the claims, the following description of preferred embodiments, and the drawings.
[0032] The drawing does not depict any limiting embodiments of the subject matter of the invention. Wherever possible, the same reference numerals are used in all figures to denote the same parts or components, and unless otherwise specified, the descriptions apply accordingly to all figures. The figures show: Fig. 1 a perspective view of a section of a vehicle interior with an open glove compartment and a storage compartment lock according to an embodiment of the present invention to illustrate a preferred application area of the invention, in a highly schematic representation; Fig. 2 a perspective view of a storage compartment lock according to an embodiment of the invention in an assembled state; Fig. 3 an exploded view of the storage compartment lock according to Fig. 2; Fig. 4a-4c a storage compartment locking system with the storage compartment locking mechanism of the embodiment according to Fig. 2 and Fig. 3 in a locked position, an unlocked position and an open position to illustrate the unlocking and opening of a storage compartment, in a schematic front view; Fig. 5a-5b the storage compartment locking system according to Fig. 4 in a locked closed position and an unlocked open position, in a cross-sectional view; Fig. 6a-6c Top views of the storage compartment locking system according to the invention in similar views as Fig. 4a-4c to illustrate a closing and locking process; Fig. 7, a perspective view of a section of an armrest with a storage compartment lock according to a further embodiment of the invention to illustrate a further application area of the invention, in a schematic representation in section form; Fig. 8 a cross-section through the armrest and the storage compartment lock to Fig. 7, in a schematic, excerpted representation; Fig. 9 a perspective view of the storage compartment locking mechanism of the further embodiment according to Fig. 7 and Fig. 8 in an assembled state; Fig. 10 an exploded view of the storage compartment lock according to Fig. 9; Fig. 11a-11c the storage compartment locking mechanism of the further embodiment according to the Fig. 7-10 in different positions to illustrate an unlocking and opening process; and Fig. 12a-12b Perspective views of the locking mechanism of the further embodiment according to the Fig. Figures 7-11 illustrate different closing and locking processes.
[0033] Fig. Figure 1 shows a highly schematic representation of a storage compartment 1 in the form of a glove compartment 2, arranged in the dashboard 3 of a motor vehicle, to illustrate an environment in which the invention can be applied. The glove compartment 2 has a storage compartment housing 4, which here is integrally formed in the dashboard 3 or can also be a separate component that is inserted into the dashboard 3. The storage compartment housing 4 defines a cavity 6 inside, which can be used as storage space for items such as documents, wallets, keys, mobile phones, or the like.
[0034] The glove compartment 2 also has a flap 7, which can also be referred to as a cover flap and serves to open or close the cavity 6 to the outside as required. For this purpose, the flap 7 can be pivotally mounted on its underside about a horizontal axis (not shown in detail here) on the storage compartment housing 4.
[0035] To keep the flap 7 securely closed in its folded-down position, in which the cavity 6 is sealed, a storage compartment locking system 8 is provided, comprising a storage compartment lock 9 and a locking element 11 that interact to lock the flap 7 in the closed position. In this case, the storage compartment lock 9 is attached to the storage compartment housing 4, while the locking element 11 is attached to the flap 7. Conversely, the storage compartment lock 9 can also be attached to the flap 7 and the locking element 11 to the storage compartment housing 4. Furthermore, the positions shown here for the storage compartment lock 9 and the locking element 11 are only examples and could be positioned at any location on the glove compartment 2, for example, on the vertical sides of the glove compartment 2. Moreover, the Fig. The design of the glove compartment 2 and the dashboard 3 shown in Figure 1 is only exemplary, and many different designs are possible. The glove compartment 2 could, in principle, also be designed like a drawer, and the flap 7 could then be attached to the drawer element so that it slides relative to the storage compartment housing 4.
[0036] By now focusing on the Fig. Reference is made to Figure 2-6, where a storage compartment lock 9' for a storage compartment locking system 8 according to a first embodiment of the invention is illustrated. As can be seen in particular from the perspective view of the assembled storage compartment lock 9' according to Fig. 2 and the exploded view according to Fig. As can be seen in Figure 3, the storage compartment lock 9' has a relatively compact, simple and cost-effective design with few components, which essentially include a housing 12, an electric drive 13, a lever element 14, a pretensioning device 16 and a locking bolt 17.
[0037] The housing 12 comprises a base plate 18, which is also designed for attaching the storage compartment lock 9' to a support structure, such as the storage compartment housing 4, for example by means of screws; a side wall 19, which is fixedly connected to the base plate 18 and projects substantially perpendicularly from the base plate 18; and a housing cover 21, which is arranged on the side of the side wall 19 facing away from the base plate 18 and can be detachably connected to the side wall 19. The base plate 18, the side wall 19, and the housing cover 21 define an interior space 22 of the housing 12, in which the components of the storage compartment lock 9', namely the electric drive 13, the lever element 14, the tensioning device 16, and at least a large part of the locking bolt, are protected. The entire housing 12 can be made of plastic, for example, by injection molding or thermoforming.
[0038] The base plate 18 shows, as can also be seen from the Fig. As shown in figures 4a-4c and 6a-6c, the base plate 18 has two spaced-apart and parallel guide rails 23a, 23b, which provide linear guidance for the locking bolt 17 in the interior 22. Furthermore, the base plate 18 carries a pivot pin 24, which provides a pivot point for the lever element 14. The guide rails 23a, 23b and the pivot pin 24 can advantageously be integrally formed on the base plate 18.
[0039] The side wall 19 extends around the circumference of the base plate 18, essentially along all sides of the same, except for one side formed by the Fig. 2 and Fig. 3. A visible recess 26 leaves the side wall 19 free on a front side 27 of the housing 12 facing the locking element 11 during operation. The recess 26 allows the locking bolt to project outwards from the interior 22 for locking purposes. Locking lugs 28 can be formed on the side wall 19, enabling the housing cover 21 to be detachably attached to the side wall 19 by means of a locking action.
[0040] The housing cover 21 has a contour corresponding to the outline of the side wall 19 in order to close the interior 22 to the outside when the housing cover 21 is secured to the side wall 19. The housing cover 21 may be provided with locking lugs 29 that enable a snap-fit connection with the locking tabs 28. Alternatively, a reverse arrangement could be chosen, with locking tabs formed on the housing cover 21 and locking lugs or locking tongues formed on the side wall 19. The housing cover 21 could also be detachably fastened to the side wall 19 or the base plate 18 by screwing, press fitting, or other detachable connection techniques.
[0041] A claw 31 is formed on one side of the housing cover 21 belonging to the front 27 of the housing 12, which projects substantially perpendicularly from the plane of the housing cover 21 and is positioned such that, in the installed state, it Fig. 2 is received in the recess 26 of the side wall 19. The claw 31 contains two parallel and spaced-apart fingers 32a, 32b, which define an opening 33 between them that allows the locking bolt 17 to project outwards from the interior 22 of the housing 12. The opening 33 is preferably dimensioned to guide the locking bolt 17 with minimal play.
[0042] The housing cover 21 also has a connection 34, which is designed here in the form of a terminal socket and comprises connection contacts 36a, 36b, which are connected to the electric drive 13 for power supply via electrical lines (not shown in detail here). A suitable plug of a power cable (not illustrated) can be connected to the connection 34 to supply the electric drive 13 with electrical energy.
[0043] The electric drive 13 comprises an electric motor 37, the output shaft 38 of which, in the illustrated embodiment, carries a worm gear 39 (shown here only schematically), which is part of a worm drive 41. The output shaft 38 could also itself be helical and form a worm shaft. The electric motor 37 is a DC motor, preferably with a nominal voltage of 12 volts, corresponding to the electrical system voltage of a motor vehicle. The electric motor 37 can be designed for the required actuating movements of the lever element 14 and the locking bolt 17 with a relatively low power output of less than 100 W, preferably even less than 50 W.
[0044] In the preferred embodiment shown, the lever element 14 is designed as a double-sided lever with a hollow shaft 42 rotatably mounted on the pivot pin 24 of the base plate 18, a first lever arm 43, and a second lever arm 44. The first lever arm 43 projects away from the hollow shaft 42 in a first direction, and the second lever arm 44 projects away from the hollow shaft 42 in a second direction, which differs from the first direction and may, for example, be perpendicular to the first direction. The first lever arm 43 has a first free end 46, which is designed to engage with the locking bolt 17. The second lever arm 44 has a second free end 47, which here is formed with a gear segment 48 that constitutes a worm gear element 49 of the worm drive 41.The thread of the worm shaft or worm gear 39, which is not shown in the figures for the sake of simplicity, engages in the tooth gaps of the worm gear element 49, which is formed here by the gear segment 48. Advantageously, the gear segment 48 is integrally formed with the second lever arm 44 as a single component, thus reducing the number of components.
[0045] The gear segment 48 comprises only a section or part of a complete gear, thus saving installation space and weight. In the illustrated embodiment, the segment angle range spanned by the gear segment 48 can be between 0° and 45° and is preferably less than 30°. In particularly preferred embodiments, the segment angle range can be less than 20°. In the design according to the invention, a pivoting of the lever element 14 by an angle of less than 20° is sufficient to release the storage compartment lock 9'.
[0046] As furthermore, from the Fig. 2 and Fig. As can be seen from Figure 3, the second lever arm 44 has a projection 51 which extends in a direction substantially perpendicular to a pivot plane of the lever element 14 defined by the two lever arms 43, 44 and serves to enable emergency release of the storage compartment lock 9'. For this purpose, the housing 12 has a through-opening 52 recessed in the housing cover 21, and the projection 51 is arranged such that it is opposite the through-opening 52 and preferably also projects slightly outwards through the through-opening 52, as for example also in the Fig. 5a and Fig. 5b is shown. In any case, the projection 51 can be grasped and pivoted by hand or with a tool from the outside in order to unlock the storage compartment lock 9' and open the glove compartment 2 in an emergency, in the event of failure of the electric motor 37 or the power supply.
[0047] The storage compartment lock 9' also includes the locking bolt 17, which has an elongated base body 53, here for example in the form of a straight cylinder with a rectangular outer surface, and a bolt head 54 that is fixedly connected to the base body 53, preferably integrally with it. The base body 53 is slidably mounted in the housing 12 along its longitudinal extent. For this purpose, the base body 53 has two guide rails 56a, 56b, which are provided on two opposite sides along its longitudinal extent in order to be slidably guided in the guide rails 23a, 23b of the base plate 18 of the housing 12. By means of the guide rails 23a, 23b and the guide rails 56a, 26b that interact with them, the locking bolt 17 is guided linearly with minimal play in both directions perpendicular to the opening 33 of the housing 12 during its sliding movement.
[0048] The bolt head 54 is, as can be seen from the Fig. 2 and Fig. As shown in Figure 3, the locking surface 57 is essentially wedge-shaped in side view and comprises a locking surface 57, which is essentially flush with a surface 58 of the base body 53, and an inclined ramp surface 59 opposite the locking surface 57, which is inclined at an angle other than 0° and 90°, for example, an angle of approximately 45°, relative to the locking surface 57. The locking surface 57 is designed to interact with the locking element 11 to lock the storage compartment lock 9' when the flap 7 is closed and to hold it in the locked position. The ramp surface 59 serves to interact with the locking element 11 when the flap 7 is closed in order to press the locking bolt 17 into the housing 12 against the action of the preloading device 16, thus enabling the flap 7 to close.A coil or compression spring 61, for example, can serve as the preloading device 16. This spring is arranged inside the base body 53 and supported between a rear surface 62 of the control head 54 and a support wall 63, for example, formed on the base plate 18. The compression spring 61 is designed to preload the locking bolt 17 outwards from the interior 22 towards its disengaged position. The design could also be modified to use a tension spring, and other preloading devices, such as leaf springs, wave springs, or the like, could be used. However, the compression spring used here simplifies the design.
[0049] As especially from Fig. As can be seen in Figure 3, the base body 53 of the locking bolt 17 has a projection or lug 60 at the end opposite the bolt head 54, which projects from the surface 58 of the base body 53 that is connected to the locking surface 57 of the bolt head 54. The lug 60 is arranged and configured to engage with the lever element 14 in order to convert a pivoting movement of the lever element 14 into a sliding movement of the locking bolt 17. In the illustrated embodiment, the first free end 46 of the first lever arm 43 and the lug 60 are suitably positioned relative to each other so that the first free end 46 engages directly with the lug 60 to transmit the force directly, without any intermediaries, from the lever element 14 to the lug 60 and consequently to the locking bolt 17.
[0050] An exemplary locking element 11, which interacts with the storage compartment lock 9' to form the storage compartment locking system 8 according to the invention, is shown in particular in the Fig. 5a and Fig. 5b. However, it should be noted that the locking part 11 shown here as a locking bolt component is purely exemplary and the locking part 11 can be configured in many different ways, for example as a locking hook, to achieve the locking function together with the storage compartment lock 9'. In the illustrated embodiment, the locking part 11 comprises a base section 64, which is designed for mounting on the flap 7 or the storage compartment housing 4, for example by screwing or riveting, and a locking section 66, which is formed integrally with the base section 64. The locking section 66 here includes two spaced-apart and parallel wall elements 67, 68, which define between them a receiving space 69 that is arranged and dimensioned to accommodate the bolt head 54 of the locking bolt 17 in its fully extended and locked position, as shown in Fig. 5a is shown. The wall element 68, spaced apart from the base section 64, is further designed to act on the inclined ramp surface 59 of the bolt head 54 in order to press the locking bolt 17 into the housing 12 when the flap 7 is closed, as also shown in the Fig. 5b is shown.
[0051] The operation of the storage compartment locking mechanism 9' according to the invention is preferably controlled by a control unit 71, which is located in Fig. Figure 1 is shown only schematically. The control unit 71 can be a hardware-based electronic control unit or a processor-based control unit that executes a software or firmware program. It can be part of a vehicle control system or a controller that manages certain functions of the vehicle. The control unit 71 is connected to a power supply 72, which can be coupled to or integrated into the vehicle's power supply and is electrically connected via a connecting line 73 to the storage compartment lock 9', in particular to the connection 34 for supplying power to the electric motor 37.
[0052] The functioning of the locker locking system 8 described so far according to the invention will now be explained with particular reference to the Fig. 4-6 will be described. Fig. Figures 4a-4c show a top view of the locker locking system 8 in different positions during the unlocking and opening process, with the housing cover 21 removed to reveal the internal locking mechanism. Fig. 5a and Fig. Figure 5b shows cross-sections through the locker locking system 8 in a plane perpendicular to the plane of representation in the Fig. 4a-4c is aligned, essentially through the center of the locking bolt 17. Fig. 6a-6c show views according to the Fig. 4a-4c for different positions during a locking and closing process. The locker locking system 8 according to the invention functions as follows:
[0053] It is assumed that the locking bolt 17 is located in the Fig. 4a and Fig. The fully extended position shown in Figure 5a is present, in which the locking head 54 projects outwards through the opening 33 from the interior 22 of the housing 12 and into the receiving chamber 69 of the firing section 11. The wall element 68 of the locking section 11 interacts with the locking surface 57 of the locking head 54 to prevent the flap 7 from opening, so that the storage compartment locking system 8 is locked and the glove compartment 2 is closed.
[0054] If the glove compartment 2 requires unlocking the storage compartment locking system 8 and opening the flap 7, a user can signal the wish to open the storage compartment 1 by means of a suitable input device, such as a touch switch or a button on a control panel, by voice or motion input, or the like. A sensor (not shown here) can detect this input and transmit an input signal indicating this wish to the control unit 71. The control unit 71 receives the input signal and then causes the electric motor 37 to be supplied with a current pulse from the power supply 72 in order to retract the locking bolt 17 into the housing 12. The current pulse has a limited duration, for example, 50 ms, generally less than 70 ms, or even less than 30 ms, which is sufficient to retract the bolt head from its fully extended position. Fig. 4a into its fully indented position, as it appears in Fig. As shown in 4b, indent.
[0055] While the power supply 72 delivers the current pulse to the electric motor 37, the output shaft 38 of the electric motor 37 is rotated. Via the worm gear 39 and the gear segment 48 of the worm gear 41, the rotary motion of the output shaft 38 is converted into a pivoting motion of the lever element 14 in the Fig. The action shown in Figure 4b, here clockwise, is implemented in which the first lever arm 43 of the lever element 14 is pivoted away from the locking part 11 towards the electric motor 37. The first lever arm 43 acts directly on the nose 60 of the locking bolt 17 and engages it. This pushes the locking bolt 17 away from the locking part 11 into the interior 22, guided by the guide elements 23a, 23b, 56a, 56b, until the locking bolt 17 reaches the fully engaged position. Fig. 4b is reached. In this position, the bolt head 54 has completely left the receiving chamber 69 of the locking part 11, so that the flap 7 can be opened and the glove compartment 2 can be opened.
[0056] Although not shown here, in preferred embodiments a mechanism, for example a pre-tensioning mechanism or a drive mechanism with force transmission means, is provided to automatically push the flap 7 into an at least partially open position when the locking system 8 is unlocked. In this position, the bolt head 54 is located outside the receiving space 69 of the locking element 11, as is also shown, for example, in Fig. 5b shown. The pre-tensioning or drive mechanism could also be set up to fully open flap 7.
[0057] As soon as the control unit 71 interrupts the power supply to the electric motor 37, i.e., the current pulse ceases, the compression spring 61 can act on the locking bolt 17 to push it out of the interior 22 of the housing 12. The spring force pushes the locking bolt 17 out of the housing 12 until the bolt head 54 reaches its fully extended position. Simultaneously, the lug 60 of the locking bolt 17 presses against the first free end 46 of the first lever arm 43, thereby retracting the lever arm 43 and thus the entire lever element 14 into the Fig. The lever element 14 is rotated around the pivot pin 24 in the direction shown in Figure 4c, here counterclockwise. The second lever arm 44, which rotates along with it, interacts via the gear segment 48 with the worm gear 39 on the output shaft 38 of the electric motor 37 to convert the pivoting movement of the lever element 14 into a rotary movement of the output shaft 38. This is permitted by the non-self-locking worm gear 41. Thus, the lever element 14 can be returned to its initial position. Fig. Figure 4c shows the state in which the locking bolt 17 is in the fully extended position outside the locking part 11 and the lever element 14 has been turned back to its starting position.
[0058] To close the glove compartment 2 again, the flap 7 is folded back until the flap 7 reaches the storage compartment housing 4 and the storage compartment lock 9' and the locking part 11 engage in the Fig. 5b and Fig. 6a reaches the relative position shown. In this position, the ramp surface 59 of the bolt head 54 comes into contact with the wall element 68 of the locking part 11, whereby, as the flap 7 is further closed, the wall element 68 presses against the inclined ramp surface 59, so that a force component acting longitudinally on the locking bolt 17 pushes the locking bolt 17 into the housing 12. As the flap 7 continues to close, the locking bolt 17 is pushed in until it is fully engaged, until the bolt head 54 can pass the wall element 68. This fully engaged position is indicated in Fig. 6b shown. Advantageously, only the locking bolt 17 is inserted into the housing 12, while the lever element 14 is decoupled from the locking bolt 17 and is not moved along with it.
[0059] As soon as the bolt head 54 has passed the wall element 68 and is opposite the receiving chamber 69 of the locking part 11, the locking bolt 17 is pushed back out of the housing 12 and into the receiving chamber 69 by the action of the compression spring 61 or other preloading device 16 until it reaches the Fig. 6c and Fig. 5a assumes the fully retracted position shown, in which the storage compartment locking system 8 is locked again. The locking surface 57 again prevents the flap 7 from being opened without user intervention. In an emergency, the locker locking system 8 can be released via the projection 51 extending from the housing (see Figure 5a). Fig. 5a, Fig. 5b) be unlocked.
[0060] The locker locking system according to the invention is relatively simple, compact, and space- and weight-saving. The design offers high functional reliability, robustness, and durability. For the user, handling is simplified and comfort is increased. The simple and cost-effective design, manufacture, and assembly of the locker system according to the invention make it particularly suitable for use in the automotive sector. The storage compartment locking system 8 can be used for various storage compartments, including lockable armrests, lockable storage compartments on doors, and the like.
[0061] Fig. Figures 7-12 show a further embodiment of a locker locking system 8 according to the invention with a modified storage compartment lock 9', which is particularly suitable for locking a storage compartment 1 in the form of a double-winged armrest 74. Insofar as components of the embodiment of the locker locking system 8 of the Fig. 7-12 with that of the Fig. Where 2-6 is the same, to avoid repetition, the description above will be used based on the same reference numerals. Fig. Reference is made to sections 2-6, which shall apply here in the same or analogous manner unless otherwise specifically stated herein.
[0062] As from the Fig. 7 and Fig. As can be seen in Figure 8, the double-winged armrest 74 has two cover flaps 76a, 76b which can be opened or unfolded independently of each other to provide access to different areas of the storage or cavity 6 of the armrest 74. The cover flaps 76a, 76b can be unlocked and opened together and simultaneously, and can be individually closed and locked separately. For this purpose, the storage compartment lock 9'' has two locking bolts 17a, 17b, each of which can be essentially identical to the locking bolt 17 of the first embodiment. This is particularly evident from Fig. Figure 10 shows an exploded view of the components of the storage compartment lock 9''. The two locking bolts 17a, 17b are arranged in the housing 12 at a distance from and parallel to each other and are slidably mounted and guided. For this purpose, two pairs of guide rails 23a, 23b are formed on the base plate 18 of the housing 12, each pair corresponding to the guide strips 56a, 56b of one of the locking bolts 17a, 17b. Each locking bolt 17a, 17b is biased towards its disengaged position by a compression spring 61a, 61b or other biasing device 16.
[0063] In contrast to the first embodiment according to the Fig. 2-6, the storage compartment lock 9'' additionally features a coupling element 77, which serves to effect a simultaneous displacement of both locking bolts 17a, 17b into the housing when the electric motor 37 is actuated, in order to unlock both cover flaps 76a, 76b. The coupling element 77 is designed in the form of a slide, which is slidably mounted and guided in the housing 12, in particular in an elongated guide opening 78 in the housing cover 21, and which is operatively coupled between the first lever arm 43 of the lever element 14 and the lugs 60 of both locking bolts 17a, 17. The coupling element 77 has at least one first working surface 79 which engages with the first free end 76 of the first lever arm 63, as well as further working surfaces 81 which are arranged to engage with the lugs 60 of the locking bolts 17a, 17b.
[0064] As especially from Fig. As can be seen in Figure 9, the guide opening 78 in the housing cover 21 can be designed as a through-opening, and a section 82 of the coupling element 77 can be accessible from the outside through the through-opening 78 to allow manual displacement of the coupling element 77, if necessary by means of a tool for emergency release of the storage compartment lock 9''.
[0065] The storage compartment locking system 8 with the storage compartment lock 9'' according to the Fig. 7-12 essentially functions in the same way as described above in connection with the Fig. 4-6 described, for each of the locking bolts 17a, 17b, where the coupling element 77 ensures that both locking bolts 17a, 17b are carried along in order to be able to retract them into the housing 12 simultaneously when unlocking.
[0066] In the locked position, as described in the Fig. 7 and Fig. 8 shown and also in Fig. As indicated in 11a, each of the two locking bolts 17a, 17b engages in its corresponding locking element 11a or 11b, which may be, for example, in the form of a locking hook or locking bar on the corresponding cover flap 76a, 76b, in order to lock the locking bolt 17a or 17b. As soon as the control unit 71 triggers the unlocking and opening of the cover flaps 76a, 76b as a result of a user request, the electric motor 37 receives a current pulse of limited duration, for example 50 ms, as described above, whereby the electric motor 37, via the output shaft 38 and the worm gear 41, moves the lever element 14 in the Fig. In the direction shown in Figure 11b, here clockwise, the lever element 14 rotates around the pivot pin 24, thereby drawing both locking bolts 17a and 17b into the housing 12 via the coupling element 77. More precisely, during the rotation of the lever element 14, the first free end 76 of the first lever arm 43 acts on the first working surface 79 of the coupling element 77 to move the coupling element 77 along the guide opening 78. The coupling element 77 then acts via its further working surfaces 81 on the two lugs 60 of the locking bolts 17a and 17b to push both locking bolts 17a and 17b together into the interior 12. Fig. Figure 11b shows the two locking bolts 17a, 17b in their fully retracted position.
[0067] As soon as the electrical impulse ceases and the cover flaps 76a, 76b have been moved, for example by a suitable mechanism such as a pre-tensioning mechanism or a drive mechanism with power transmission means, into a position that is at least partially open, the compression springs 61a, 61b push both locking bolts 17a, 17b outwards again, out of the housing 12, until they reach the fully extended position according to Fig. 11c. At the same time, the noses 60 act via the coupling element 77 on the first lever arm 43 to engage the lever element 14 in the Fig. The direction shown in Figure 11c, here counterclockwise, is used to rotate the pivot pin 24. By providing the non-self-locking worm gear 41, the lever element 14 can be rotated back to its initial position. Advantageously, the worm gear element 49 is designed in the form of the gear segment 48 integrally formed on the second lever arm 44.
[0068] The cover flaps 66a and 66b can be closed independently and separately from each other, without affecting the state of the other cover flap 76a or 76b. For example, as shown in Fig. As shown in section 12a, when the cover flap 76b is closed, the locking bolt 17b is pushed into the housing 12 by the force exerted by the locking element 11b on the running surface 59 of the locking bolt 17b, so that the bolt head 54 of the locking bolt 17b can pass a corresponding wall element 68 of the locking element 11b and enter the receiving chamber 69 of the locking element 11b to lock the cover flap 76b. The state of the locking bolt 17a associated with the cover flap 76a is not affected in any way by this.
[0069] Accordingly, when closing the cover flap 76a, as shown in the diagram... Fig.As shown in section 12b, the locking bolt 17a is pressed into the housing 12 by the force exerted by the locking element 11a, while the state of the other locking bolt 17b and the other cover flap 76b remains unaffected. If one of the cover flaps 76a or 76b is closed and the other cover flap 76b or 76a is closed, the state of the already closed cover flap 17a or 17b and the associated locking bolt 17a or 17b is not affected. They remain closed or locked and are therefore not opened or unlocked. During the individual closing operations, the movements of the locking bolts 17a and 17b are completely decoupled from each other.
[0070] A storage compartment lock 9, 9', 9'' for a storage compartment 1 of a vehicle comprises a housing 12, at least one locking bolt 17, 17a, 17b slidably mounted in the housing 12, which can be selectively moved into a position engaged in the housing 12 or into a position disengaged from the housing 12, an electric drive 13 arranged in the housing 12 with an electric motor 37 and a worm gear 41 driven by the electric motor 37, and a lever element 14 pivotably mounted in the housing 12, which is directly operatively connected to the worm gear 41 in such a way that a rotary movement of the electric motor 37 is directly converted into a pivoting movement of the lever element 14 via the worm gear 41, wherein the lever element 14 is further operatively connected to the at least one locking bolt 17, 17a, 17b in such a way that a pivoting movement of the The lever element 14 is converted into a sliding movement of at least one locking bolt 17, 17a, 17b.
Claims
[1] Storage compartment lock (9, 9', 9'') for a storage compartment (1) of a vehicle, comprising: a case (12); at least one locking bolt (17, 17a, 17b) which has a base body (53) which is slidably mounted in the housing (12) and a bolt head (54) which is fixedly connected to the base body (53) and which can be selectively moved into a fully extended position or a fully retracted position by moving the base body (53); an electric drive (13) arranged in the housing (12) with an electric motor (37) and a worm gear (41) driven by the electric motor (37); and a lever element (14) which is pivotably mounted in the housing (12) and is directly operatively connected to the worm gear (41) in such a way that a rotary movement of the electric motor (37) is directly converted into a pivoting movement of the lever element (14) via the worm gear (41), wherein the lever element (14) has a lever arm (43) which engages with the base body (53) of the at least one locking bolt (17, 17a, 17b) in order to convert a pivoting movement of the lever element (14) into a sliding movement of the at least one locking bolt (17, 17a, 17b). [2] Storage compartment lock (9, 9', 9'') according to claim 1, wherein the housing (12) comprises a base plate (18), a side wall (19) fixedly connected to the base plate (18) and a housing cover (21) detachably connected to the side wall (19) and / or the base plate (18), wherein at least one opening (33) is defined on a front face (27) of the housing (12) through which the locking head (54) protrudes from the housing (12) in the fully extended position. [3] Storage compartment locking device (9, 9', 9'') according to claim 1 or 2, wherein the base body (53) of the at least one locking bolt (17, 17a, 17b) has an elongated shape and carries guide rails (56a, 56b) extending along its longitudinal extent on two opposite sides, which are slidably guided in guide rails (23a, 23b) formed on the housing (12). [4] Storage compartment locking device (9, 9', 9'') according to any one of the preceding claims, wherein the bolt head (54) of the at least one locking bolt (17, 17a, 17b) is formed with a locking surface (57) and an inclined ramp surface (59) opposite the locking surface (57). [5] Storage compartment locking device (9, 9', 9'') according to any one of the preceding claims, wherein the at least one locking bolt (17, 17a, 17b) has a nose (60) projecting over a surface (58) of the base body (53), which is arranged and configured to engage with the lever element (14). [6] Storage compartment locking device (9, 9', 9'') according to any one of the preceding claims, wherein the at least one locking bolt (17, 17a, 17b) is biased in the direction of its disengaged position by a biasing device (16), in particular a compression spring (61, 61a, 61b). [7] Storage compartment locking mechanism (9, 9', 9'') according to any one of the preceding claims, wherein the worm gear (41) is designed as a non-self-locking gear. [8] Storage compartment locking device (9, 9', 9'') according to any one of the preceding claims, wherein the worm gear (41) comprises a worm shaft formed by a helical output shaft (38) of the electric motor (37), or a worm wheel (39) mounted non-rotatably on the output shaft (38) of the electric motor (37), and a worm wheel element (49) formed integrally with the lever element (14). [9] Storage compartment locking device (9, 9', 9'') according to claim 8, wherein the worm gear element (49) is designed as a gear segment (48) which is limited by a segment angle range which is less than 45°, preferably less than 30°, particularly preferably less than 20°. [10] Storage compartment locking device (9, 9', 9'') according to claim 9, wherein the lever element (14) is a two-sided lever element (14) comprising the lever arm (43) which engages with the at least one locking bolt (17, 17a, 17b) and a further lever arm (44) on which the gear segment (48) is formed. [11] Storage compartment lock (9, 9', 9'') according to claim 10, wherein the further lever arm (44) carries a projection (51) which projects in a direction substantially perpendicular to a pivot plane of the lever element (14), the housing (12) has a through-opening (52) and the projection (51) is accessible from the outside through the through-opening (52) to enable emergency release of the storage compartment lock (9, 9', 9''). [12] Storage compartment locking mechanism (9, 9', 9'') according to any one of the preceding claims, wherein the at least one locking bolt (17, 17a, 17b) is a single locking bolt (17) and the lever element (14) engages directly with the single locking bolt (17). [13] Storage compartment locking device (9, 9', 9'') according to one of claims 1-11, wherein the at least one locking bolt (17, 17a, 17b) has a first elongated locking bolt (17a) and a second elongated locking bolt (17b) which are arranged parallel and spaced apart next to each other in the housing (12) and are slidably mounted, wherein each of the first and second locking bolts (17a, 17b) is biased in the direction of its disengaged position by a separate biasing device (16), in particular a compression spring (61a, 61b). [14] Storage compartment locking device (9, 9', 9'') according to claim 13, wherein a coupling element (77) is slidably mounted in the housing (12) and is effectively coupled between the lever element (14) and the first and second locking bolts (17a, 17b) to convert a pivoting movement of the lever element (14) into a coupled sliding movement of both the first and the second locking bolts (17a, 17b), wherein the first and the second locking bolts (17a, 17b) are each arranged to be pushed into the housing (12) independently of the other locking bolt (17a, 17b) and the coupling element (77) when an external force is applied to their associated bolt head (54). [15] Storage compartment lock (9, 9', 9'') according to claim 14, wherein a section (82) of the coupling element (77) is accessible from the outside through a through-opening (78) of the housing (12) to allow emergency release of the storage compartment lock (9''). [16] Storage compartment lock (9, 9', 9'') according to any one of the preceding claims, wherein the storage compartment lock (9, 9', 9'') is associated with a control (71) which is configured to receive an input signal indicating the operator's wish to open the storage compartment (1) and to cause the electric motor (37) to be supplied with a current pulse of limited duration to effect the transfer of the locking head (54) into its fully engaged position. [17] Storage compartment (1) of a vehicle, in particular a motor vehicle, wherein the storage compartment (1) comprises: a storage compartment housing (4) that defines a cavity (6); at least one cover flap (7, 76a, 76b) which is movably arranged on the storage compartment housing (3), wherein the at least one cover flap (7, 76a, 76b) is movable between an open position in which the cavity (6) is open to the outside and a closed position in which the cavity (6) is closed to the outside; a storage compartment lock (9, 9', 9'') according to any one of the preceding claims, which is attached to one of the at least one cover flap (7, 76a, 76b) and the storage compartment housing (3), and a locking part (11, 11a, 11b) attached to the other by the at least one cover flap (7, 76a, 76b) and the storage compartment housing (3), which is arranged to cooperate with the bolt head (54) of the at least one locking bolt (17, 17a, 17b) of the storage compartment locking mechanism (9, 9', 9'') in order to lock the at least one cover flap (7, 76a, 76b) in the closed position. [18] Storage compartment (1) according to claim 17, comprising a glove compartment (2) formed in a dashboard (3) of a motor vehicle or a separate component that can be inserted into the dashboard (3), or an armrest (74) provided in an area of a center console or a rear seat console of a motor vehicle and comprising a lockable storage space.