CN112211508A

CN112211508A - Lock and container with such a lock

Info

Publication number: CN112211508A
Application number: CN202010661467.6A
Authority: CN
Inventors: 斯特凡·凯德尔
Original assignee: Sudhaus GmbH and Co KG
Current assignee: Sudhaus GmbH and Co KG
Priority date: 2019-07-10
Filing date: 2020-07-10
Publication date: 2021-01-12
Anticipated expiration: 2040-07-10
Also published as: CN112211508B; EP3763240A1; DE202019103812U1; EP3763240B1

Abstract

The present invention relates to a lock and a container having such a lock. The lock comprises a receiving unit fastened to the wall of the container and an engagement unit fastened to a container cover that can be moved relative to the wall and releasably engaged with the receiving unit, the receiving unit having a receiving core that projects outward in a cylindrical configuration and that receives the first magnet in the region of its free end, the receiving core being provided on its circumferential surface with a guide groove that extends obliquely outward from the lower end of the receiving core and is open at its upper free end, the engagement unit having a recess that receives the receiving core and whose shape is matched to the shape of the receiving core, a second magnet and an engagement element that is arranged rotatably relative to the receiving core between an unlocking position and a locking end position, which engagement element is configured and positioned such that: in its unlocking position, when the receiving core is introduced into the recess, it engages in the guide groove and is then guided in the guide groove into its locking end position as the magnetic attraction of the mutually attracting magnets increases.

Description

Lock and container with such a lock

Technical Field

The present invention relates to a lock for a container, in particular for a container in the form of a backpack (Tornister), a travel bag (Rucksack) or the like. Furthermore, the invention relates to a container with such a lock.

Background

Portable containers such as backpacks, travel bags, or the like typically include a wall defining a containment space for the container and a container lid that is movable relative to the wall. The cover is usually connected to the wall on the rear side in such a way that it can be tilted or pivoted relative to the wall between an open position and a closed position in order to make the receiving space selectively accessible or closable. In order to lock the container lid in the closed position, it is known to provide the container with a lock. Such locks generally comprise a receiving unit fastened to the wall of the container and an engagement unit fastened to the cover of the container and capable of releasably engaging with the receiving unit to close the receiving space.

Disclosure of Invention

Starting from this prior art, the object of the present invention is to provide a novel, low-cost and easy-to-operate lock and a container with such a lock.

In order to solve this object, the invention provides a lock for a container, in particular in the form of a backpack, a travel bag or the like, comprising a receiving unit and an engagement unit, the receiving unit being designed to: fastened to the container wall, the engagement unit is designed to: fastened to a container cover that can be moved relative to a wall and brought into engagement in a releasable manner with a receiving unit, wherein the receiving unit has an outwardly projecting, cylinder-like receiving core that receives a first magnet in the region of its free end and is provided on its circumferential surface with at least three peripherally distributed guide grooves that extend obliquely outward from the lower end of the receiving core and are open at the free end of its upper part, and wherein the engagement unit has a recess that receives the receiving core and whose shape is matched to the shape of the receiving core, a second magnet that is arranged in the region of the bottom of the recess and that cooperates with the first magnet, and a number of engagement elements that is arranged in a number corresponding to the number of guide grooves so as to be rotatable relative to the receiving core between an unlocking position and a locking end position, the engagement elements being configured and positioned in such a way that, in the unlocked position of the engagement element, the receiving core is brought into engagement with the guide groove when it is introduced into the recess, and is then guided in the guide groove into its locked final position as the magnetic attraction of the mutually attracting magnets increases.

In order to lock the container lid in the closed state, the engagement unit and the receiving unit of the lock according to the invention are brought into engagement in such a way that the recess of the engagement unit engages over the receiving core of the receiving unit. In this case, the engagement element of the engagement unit, in particular the radially inwardly projecting, preferably pin-shaped, free end of the engagement element, is introduced into the associated guide groove of the receiving core via the free end of the upper part of the associated guide groove, which is open, and is moved inside the guide groove in the direction of the lower end of the receiving core into its locking end position. During this movement, the distance between the magnets positioned on the receiving unit on the one hand and on the engagement unit on the other hand decreases, the magnets attracting each other with increasing attraction force, thereby supporting the movement of bringing the engagement unit and the receiving unit into engagement with each other. The locking itself is thus effected on the one hand via the holding force of the two magnets and on the other hand via the engagement element engaging into the guide groove. For opening the container lid, the engagement unit is rotated in such a way that the engagement elements are moved outward along the associated guide grooves, wherein the magnets are also moved away from each other. The rotational movement here facilitates overcoming the magnetic attraction in the locked state of the lock. As soon as the magnetic attraction force has sufficiently weakened due to the spacing of the magnets and the engagement element has moved out of the guide groove, the engagement unit can be easily released from the receiving unit.

As a result, the invention provides a lock which can be manufactured at low cost, is simple to operate and ensures satisfactory locking of the container lid to the container wall.

According to an embodiment of the invention, the receiving unit has a receiving portion defining the receiving core and a retaining disc preferably screwed to the receiving portion. In order to fasten the receiving unit on the wall of the container, the retaining disk is positioned at the desired location on the inner side of the wall. Subsequently, the containing section defining the containing core is placed on the outer side of the wall at the location of the holding tray, and then the containing unit and the holding tray are connected to each other. Advantageously, the connection is made using a fastening screw, in particular a self-tapping fastening screw. Alternatively, other connecting elements, such as rivets or the like, can of course also be used.

Preferably, the engagement unit has a base part provided with a through-opening, a swivel plate of annular configuration which is held rotatably on the inside of the base part and which accommodates the engagement element, and an actuating element which is held rotatably on the outside of the base part and is connected to the swivel plate in a rotationally fixed manner (drehfest) and which defines a recess and accommodates the second magnet, wherein the recess is accessible through the through-openings of the swivel plate and the base part. The base part is a component of the engagement unit, which is connected to the container lid in a rotationally fixed manner. Then, the rotating plate and the operating portion are rotatably held on the base portion. In this way, the engagement element arranged on the rotary plate can be rotated relative to the receiving core of the receiving unit in such a way that the actuating element is actuated by the user by rotating it.

Advantageously, the base part defines a stop which limits the rotational movement of the rotary plate and the operating element relative to the base part in both rotational directions. Such a stop facilitates the user in handling the lock according to the invention on the one hand, since the final position of the rotary movement, i.e. the locking final position and the unlocking position, can be easily found by means of the stop. On the other hand, improper operation of the lock is prevented, and thus damage to the lock is prevented.

According to one embodiment of the invention, a spring element, preferably in the form of an extension spring, is provided, which pretensions the swivel plate into the locking end position of the engagement element. Such a spring element supports the locking of the lock, thereby further facilitating the operation of the lock.

Preferably, the engagement unit has fastening portions which are intended to be connected to the container lid and which are pivotably connected to the base portion. The engagement means can then be fastened to the container lid using fastening elements, in particular using self-tapping fastening screws, although other fastening elements can of course also be used.

A spring element, preferably a compression spring, is advantageously provided, which presses the engagement element radially inward. Due to such a spring element, the engagement element can be brought into engagement with the guide groove when the engagement element is pushed onto the receiving unit, even if the engagement element is not exactly aligned with the opening of the guide groove due to the application of a small pressure. The spring element is moved slightly radially outwards by the pressure force, so that it snaps into the guide groove. The engagement element and the spring element are preferably accommodated in an accommodation space delimited by the rotary plate and the actuating element, wherein in particular a free end of the engagement element, which is of pin-like design, projects radially inward from the accommodation space.

The invention further provides a container, in particular in the form of a backpack, a travel bag or the like, having a wall, in particular a wall which delimits a receiving space of the container, a container lid which can be moved relative to the wall, and a lock according to the invention, wherein a receiving unit of the lock is fastened to the container wall and an engagement unit is fastened to the container lid in such a way that the engagement unit can be brought into releasable engagement with the receiving unit.

Drawings

Further features and advantages of the invention will become apparent with reference to the drawings in conjunction with the following description. Wherein:

figure 1 shows an exploded view of a lock according to an embodiment of the invention from above;

figure 2 shows an exploded view of the lock from below;

FIG. 3 shows a top view of the lock in an assembled state;

FIG. 4 shows a side view of the lock;

fig. 5 shows a top view of the lock with the actuating element lifted, the engagement element of the lock being in the unlocked position;

fig. 6 shows a plan view similar to fig. 5, wherein the engagement element is in engagement with the guide groove in the locked final position;

FIG. 7 shows a sectional side view along the line VII-VII in FIG. 6; and

fig. 8 shows a schematic perspective view of a container on which the lock shown in fig. 1 is arranged.

Detailed Description

The lock 1 shown in the figures comprises as main components a receiving unit 2 and an engagement unit 3, the receiving unit being designed to: fastened to the wall of the container, the engagement unit being designed to: is fastened to the container lid which can be moved relative to the wall and is releasably brought into engagement with the receiving unit 2. The container is preferably a portable container such as in the form of a backpack, travel bag or the like.

In the present case, the receiving unit 2 has a receiving section 4 of disk-like design, which defines a centrally located, outwardly projecting receiving core 5 of cylindrical design. The receiving core 5 comprises a cavity 6 that is accessible from below, in which cavity a first magnet 7 is positioned in the upper region of the receiving core 5. In the present case, the receiving core 5 is provided on its circumferential surface with three guide grooves 8 which are distributed uniformly over the circumference and which extend obliquely outward from the lower end of the receiving core 5 and are open at the upper free end. Radially outwardly of the receiving core 5, through-holes 9 are arranged distributed along the circumference for receiving fastening screws, not shown in detail. The containing unit 2 further comprises a retaining disc 10 which, when the containing unit 2 is fitted on the wall of the container, is screwed to the containing part 4 using the fastening screws described.

In the present case, the engagement unit 3 comprises a base part 12 provided with a substantially circular through-opening 11, on which two spring element retaining projections 13 projecting radially inward into the through-opening 11 are formed, which are situated diametrically opposite one another. The through-opening 11 has a recess 14 in the form of a circular segment, which is formed with a stop 15 at its free end. The base part 12 is provided on one end side with a plurality of retaining projections 16 arranged at a distance from one another, through which mutually aligned through-holes 17 extend. The

further holding projections

18 and 19 of the two fastening

parts

20 and 21, which are likewise provided with through

holes

22 and 23 arranged in alignment with one another, engage in the intermediate space existing between the holding projections 16 of the base part 12, wherein the through hole 17 of the base part 12, the through hole 22 of the fastening part 20 and the through hole 23 of the fastening part 21 jointly accommodate a pendulum shaft 24. The base part 12 and the two fastening

parts

20 and 21 can thus be moved in a swiveling manner relative to one another about the swivel axis 24. The fastening portion 21 has two recesses 25 into which fastening projections 27 of the fastening portion 21 provided with through holes 26 can be introduced when the

fastening portions

20 and 21 are moved in a pendulum-like manner relative to each other, so that the

fastening portions

20 and 21 are oriented relative to each other. When the engagement unit 3 is mounted on the container lid, a fastening screw, not shown in detail, can then be introduced through the fastening projection 27 of the fastening part 21 and screwed into the fastening part 20. Furthermore, an orientation lug 28 is formed on the fastening part 20, which lug 28 projects in the direction of the fastening part 21, and is designed such that: in a recess 29 on the underside of the fastening part 21. The engagement unit 3 furthermore comprises a rotary plate 31 which is held rotatably on the inner side 30 of the base part 12 and is of annular design, and an actuating element 33 which is held rotatably on the outer side 32 of the base part 12 and is connected to the rotary plate 31 in a rotationally fixed manner. The diameter of the centrally arranged opening 34 of the rotary plate 31 corresponds to the outer diameter of the receiving core 5, so that the retaining core 5 can be introduced into the opening 34 from below. Three engagement elements 35 are held on the rotary plate 31, which are designed and positioned in such a way that they project radially inward into the opening 34 and that, when the receiving core 5 is introduced into the opening 34, their free ends, which are designed in a pin-like manner, engage in the guide groove 8 of the receiving core 5. The engagement element 35 is provided with spring elements 36 in the form of compression springs, which press the engagement element 35 radially inwards. The engagement element 35 is accommodated in an accommodation space 37 formed on the upper side of the rotary ring 31 in such a way that the spring element 36 is pressed against a wall on the rear side of the accommodation space 37. Further, on the outer side 32 of the rotating ring 31, a positioning projection 38 in the shape of an annular arc segment projecting upward is provided in the vicinity of the outer periphery. Furthermore, retaining pins 39 project from the outer side 32 of the rotary ring 31, which are positioned diametrically opposite one another in a circumferential groove 40 formed radially inside the positioning projection. The peripheral groove 40 serves as a guide for two spring elements 41 embodied as tension springs, which are each fastened on one side to one of the retaining pins 39 of the swivel plate 31 and on the other side to one of the spring element fastening projections 13 of the base part. The rotating plate is provided with through openings 42 for receiving fastening screws. The actuating element 33 defines on its underside 43 a recess 44 for accommodating the accommodating core 5, the shape of which is coordinated with the shape of the accommodating core 5, and on its bottom or base a second magnet 45 is located which cooperates with the first magnet 7. Furthermore, recesses 46 covering the receiving space 37 of the rotary plate 31 and downwardly projecting positioning projections 47 in the form of annular segments are provided on the underside 43 of the actuating element 33, which positioning projections 47 engage between and cooperate with the positioning projections 38 of the rotary plate 31 for the purpose of relatively positioning the rotary plate 31 and the actuating element 33. The stop element 48, which projects downward from the actuating element 33, engages in the recess 14 of the base part 12, so that the stop element, as a result of striking against the stop 15, limits the joint rotational movement of the rotary plate 31 and the actuating element 33 relative to the base part 12, thereby defining an unlocked position and a locked end position. Similarly to the through-opening 42 of the rotary plate 31, a blind hole 49 is formed on the underside 43 of the actuating element 33 in order to connect the rotary plate and the actuating element in a rotationally fixed manner to one another using a clamping screw.

In order to lock the lock 1, in a first step, the actuating element 33 of the engagement unit 3 is rotated starting from a locked final position (in which the spring element 41 is substantially untensioned) into an unlocked position (in which the spring element 41 is tensioned), so that the engagement unit 3 is placed on the receiving unit 2 in such a way that the receiving core 5 of the receiving unit 2 is inserted into the recess 44 of the engagement unit 3. The free ends of the engagement elements 35 of the engagement unit 3 are introduced into the associated guide groove 8 of the receiving unit 2 via the open upper free ends of the associated guide groove 8, see fig. 5. Subsequently, the actuating element 33 is pivoted back and released, while the engagement unit 3 is pressed slightly against the receiving unit 2. The spring element 41 then ensures that the engagement element 35 slides along the associated guide groove, wherein the two

magnets

7 and 45, which attract one another, move toward one another. Then, the locked position shown in fig. 6 is held by the magnet. Alternatively, the engagement unit 3 can also be simply pushed onto the receiving unit 2 without the actuating element 33 having to be rotated. The engagement element 35, which is in contact with the surface of the receiving core 5, is pushed radially outward against the force of the spring element 36 as a result of the force exerted on the engagement unit 3 and then only latches at the end of the sliding movement into the guide groove 8.

In order to release the locking that is achieved in this way, the actuating element 33 is rotated again and the engagement element 35 is disengaged from the guide groove 8 in the course of this rotational movement with the continuously decreasing attraction force of the

magnets

7 and 45, so that the engagement unit 3 can be lifted off from the receiving unit 2.

Fig. 8 shows a container 50 in the present form of a travel bag having a wall 51 defining a receiving space 52, a container lid 53 which can be swung into and held against the wall 51 on the back side of the wall 51 and which serves to close the receiving space 52, a carrier strip 54 and a holding handle 55. In the front region of the wall 51, the receiving unit 2 of the lock 1 is positioned, wherein the wall 51 is arranged between the retaining disk 10 positioned inside and the receiving part arranged outside. The engagement unit 3 is fastened with its

fastening portions

20 and 21 to the front free end of the container lid 53 in such a way that the engagement unit 3 can be releasably brought into engagement with the receiving unit 2 in order to releasably fix the container lid to the wall 51.

List of reference numerals

1 Lock

2 containing unit

3 scarf joint unit

4 accommodating part

5 containing core

6 cavity

7 first magnet

8 guide groove

9 through hole

10 holding plate

11 through opening

12 base part

13 spring element retaining projection

14 recess

15 stop

16 holding projection

17 through hole

18 retention bumps

19 holding projection

20 fastening part

21 fastening part

22 through hole

23 through hole

24 pendulum shaft

25 concave part

26 through opening

27 fastening projection

28 orientation projection

29 pit

30 inner side

31 rotating plate

32 outside

33 actuating element

34 opening

35 scarf element

36 spring element

37 accommodating space

38 positioning projection

39 retaining pin

40 circumference groove

41 spring element

42 through opening

43 lower side

44 recess

45 second magnet

46 recess

47 positioning projection

48 stop element

49 blind hole

50 container

51 wall

52 accommodating space

53 container lid

54 Carrier tape

55 holding handle

Claims

1. Lock (1) for a container (50), in particular in the form of a backpack, travel bag or the like, comprising a receiving unit (2) and an engagement unit (3), which receiving unit is designed to: fastened to the wall of the container, the engagement unit being designed to: fastened to a container lid which can be moved relative to the wall and which engages in a releasable manner with the receiving unit (2), wherein the receiving unit (2) has an outwardly projecting receiving core (5) of cylindrical design which receives the first magnet (7) in the region of its free end and is provided on its circumferential surface with at least three peripherally distributed guide grooves (8) which extend obliquely outward from the lower end of the receiving core (5) and are open at the free end of their upper part, and wherein the engagement unit (3) has: a recess (44) for receiving the receiving core (5) and having a shape that is matched to the shape of the receiving core (5), a second magnet (45) that is arranged in the region of the bottom of the recess (44) and that interacts with the first magnet (7), and a number of engagement elements (35) that are arranged in a manner such that they can be rotated relative to the receiving core (5) between an unlocking position and a locking end position, corresponding to the number of guide grooves (8), said engagement elements being designed and positioned such that: in the unlocking position thereof, the engagement element, when the receiving core (50) is introduced into the recess (44), engages in the guide groove (8) and is then guided in the guide groove into the locking end position thereof as the magnetic attraction of the mutually attracting magnets (7, 45) increases.

2. Lock (1) according to claim 1, characterized in that the containing unit (2) has a containing portion (4) defining the containing core (5) and a retaining disc (10) preferably screwed to the containing portion (4).

3. The lock (1) according to claim 1 or 2, characterized in that the engagement unit (3) has: a base portion (12) provided with a through opening (11); a swivel plate (31) which is held rotatably on the inner side of the base part (12) and which accommodates the engagement element (35) and is of annular design; and an actuating element (33) which is held rotatably on the outside of the base part (12), is connected in a rotationally fixed manner to the rotary plate (31), delimits the recess (44), and accommodates the second magnet (45), wherein the recess (44) is accessible through the through-opening (11) of the base part (12) and the rotary plate (31).

4. The lock (1) according to claim 3, characterized in that said base portion (12) defines a stop (15) which limits the rotational movement of said rotating plate (31) and said operating element (33) with respect to said base portion (12) in both rotational directions.

5. Lock (1) according to claim 3 or 4, characterized in that a spring element (41), preferably in the form of a tension spring, is provided which pretensions the turning plate (31) into the locking position of the engagement element (35).

6. Lock (1) according to one of claims 3 to 5, characterized in that the engagement unit (3) has a fastening section (20, 21) for connection with the container lid and which is pivotably connected with the base section (12).

7. Lock (1) according to any one of the preceding claims, characterized in that a spring element (36), preferably a compression spring, is provided which presses the engagement element (35) radially inwards.

8. A container (50), in particular in the form of a backpack, a travel bag or the like, having: a wall (51), in particular a wall (51) defining a receiving space (52) of the container (50); a container lid (53) movable relative to the wall; and a lock (1) according to any one of the preceding claims, wherein the receiving unit (2) of the lock (1) is fastened to a wall (51) of the container (50) and the engagement unit (3) is fastened to the container lid (53) such that the engagement unit (3) can be brought into engagement with the receiving unit (2) in a releasable manner.