HUB FOR LOCK DEVICE, AND LOCK DEVICE
20220034122 · 2022-02-03
Inventors
Cpc classification
E05B63/04
FIXED CONSTRUCTIONS
E05B63/16
FIXED CONSTRUCTIONS
E05B2047/0023
FIXED CONSTRUCTIONS
International classification
Abstract
A hub (10) for a lock device (104), the hub (10) comprising an outer member (12) having an outer opening structure (20); an inner member (14) having an inner opening structure (22); an intermediate member (16) having an intermediate opening structure (24); an attachment element (18) configured to be attached to the intermediate member (16), and being movable between a locking position (96) and an unlocking position (102); and a locking member (28) for rotationally locking the outer member (12) and the intermediate member (16), or for rotationally locking the inner member (14) and the intermediate member (16); wherein the hub (10) is configured such that the locking member (28) can be withdrawn from the intermediate member (16) when the attachment element (18) adopts the unlocking position (102). A lock device (104) comprising a hub (10) is also provided.
Claims
1. A hub for a lock device, the hub comprising: an outer member for rotation about a hub axis, the outer member comprising an outer opening structure; an inner member for rotation about the hub axis, the inner member comprising an inner opening structure; an intermediate member for rotation about the hub axis, the intermediate member comprising an intermediate opening structure, and being configured to be arranged between the outer member and the inner member; an attachment element configured to be attached to the intermediate member, the attachment element being movable between a locking position and an unlocking position; and a locking member configured to be inserted into the outer opening structure and the intermediate opening structure from an exterior outer side of the hub to engage the attachment element in the locking position, and rotationally lock the outer member and the intermediate member for common rotation about the hub axis, or into the inner opening structure and the intermediate opening structure from an exterior inner side of the hub to engage the attachment element in the locking position, and rotationally lock the inner member and the intermediate member for common rotation about the hub axis; wherein the hub is configured such that an engagement between the locking member and the attachment element is released by moving the attachment element from the locking position to the unlocking position.
2. The hub according to claim 1, wherein the attachment element is configured to be resiliently deformed between the locking position and the unlocking position.
3. The hub according to claim 1, wherein the attachment element is a C-clip,
4. The hub according to claim 1, wherein the locking member is configured to be attached to the attachment element by means of a snap-fit.
5. The hub according to claim 1, wherein the locking member comprises at least one locking arm configured to engage the attachment element.
6. The hub according to claim 1, further comprising a cam profile, and wherein the attachment element comprises a cam follower configured to follow the cam profile in order to move between the locking position and the unlocking position.
7. The hub according to claim 6, further comprising a cam element, wherein the cam profile is provided on the cam element.
8. The hub according to claim 7, wherein the cam element is configured to be attached to the intermediate member by means of a snap-fit.
9. The hub according to claim 7, wherein the cam element is a C-clip.
10. The hub according to claim 3, wherein the cam element is configured to be arranged within the attachment element.
11. The hub according to claim 10, wherein an opening is provided between an outer back surface of the cam element and an inner back surface of the attachment element when the cam element is arranged within the attachment element and when the attachment element adopts the locking position.
12. The hub according to claim 1, wherein the intermediate member comprises a recess for receiving the attachment element.
13. The hub according to claim 12, wherein the recess is joined with the intermediate opening structure.
14. The hub according to claim 1, wherein the intermediate member comprises an intermediate blocking arm for being selectively blocked by a blocking mechanism of the lock device in order to block rotation of the intermediate member.
15. A lock device comprising a hub according to claim 1.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0039] Further details, advantages and aspects of the present disclosure will become apparent from the following embodiments taken in conjunction with the drawings, wherein:
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DETAILED DESCRIPTION
[0055] In the following, a hub for a lock device, the hub comprising a locking member for locking an intermediate member with either an outer member or an inner member, and a lock device comprising a hub, will be described. The same reference numerals will be used to denote the same or similar structural features.
[0056]
[0057] The hub 10 further comprises an attachment element 18. The attachment element 18 is configured to be attached to the intermediate member 16. The attachment element 18 is movable between a locking position and an unlocking position. The attachment element 18 may remain attached to the intermediate member 16 in both the locking position and in the unlocking position.
[0058] The outer member 12 comprises an outer opening structure 20. In this example, the outer opening structure 20 comprises three outer through holes 20a, 20b, 20c. The inner member 14 comprises an inner opening structure 22. In this example, the inner opening structure 22 comprises three inner through holes 22a, 22b, 22c. The intermediate member 16 comprises an intermediate opening structure 24. The intermediate member 16 is configured to be arranged between the outer member 12 and the inner member 14. In this example, the intermediate opening structure 24 comprises three intermediate holes 24a, 24b, 24c. The intermediate holes 24a, 24b, 24c are here constituted by through holes provided in an intermediate body 26 of the intermediate member 16.
[0059] As shown in
[0060] The hub 10 further comprises a locking member 28. The locking member 28 is configured to be inserted from an exterior outer side of the hub 10 into the outer opening structure 20 of the outer member 12 and into the intermediate opening structure 24 of the intermediate member 16, i.e. from the right in
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[0062] The locking member 28 is also configured to be inserted from an exterior inner side of the hub 10 into the inner opening structure 22 of the inner member 14 and into the intermediate opening structure 24 of the intermediate member 16, i.e. from the left in
[0063] As shown in
[0064] The intermediate member 16 further comprises a recess 30. The recess 30 is configured to receive the attachment element 18. As shown in
[0065] The intermediate member 16 further comprises an intermediate Mocking arm 32. The intermediate Mocking arm 32 extends from the intermediate body 26. The intermediate Mocking arm 32 is configured to be selectively blocked by a Mocking mechanism of the lock device. Thereby, rotation of the intermediate member 16, and either the outer member 12 or the inner member 14 locked thereto by means of the locking member 28, can be selectively blocked.
[0066] The locking member 28 in
[0067] The locking member 28 in
[0068] Each locking arm 38a, 38b, 38c is configured to engage the attachment element 18 when the attachment element 18 is in the locking position in the intermediate member 16. To this end, each locking arm 38a, 38b, 38c comprises a locking hook 40a, 40b, 40c for engaging the attachment element 18 by means of a snap-fit. The engagement between the locking arms 38a, 38b, 38c and the attachment element 18 can be released by moving the attachment element 18 from the locking position to the unlocking position.
[0069] The outer member 12 further comprises an outer pin opening 42. The outer pin opening 42 is configured to receive an outer handle pin of an outer door handle. The outer member 12 can thereby rotate together with an outer door handle. The outer pin opening 42 is here square-shaped, but may have alternative, such as polygonal, shapes.
[0070] The outer member 12 further comprises an outer bolt actuating part 44. The outer bolt actuating part 44 is configured to actuate a bolt in the lock device by rotation of the outer member 12 about the hub axis.
[0071] The outer member 12 further comprises an outer lever arm 46. The outer lever arm 46 is configured to be attached to an outer elastic element of the lock device in order to rotate the outer member 12 about the hub axis to a neutral position.
[0072] The outer member 12 further comprises an outer collar 48. The outer collar 48 protrudes towards the intermediate member 16 and is configured to partly receive the intermediate body 26 of the intermediate member 16. Thereby, the intermediate member 16 can be held by the outer member 12. The outer member 12 further comprises an outer stop 50, here exemplified as a protrusion, for stopping the outer member 12 in the neutral position.
[0073] As shown in
[0074] The inner member 14 further comprises an inner bolt actuating part 54. The inner boll actuating part 54 is configured to actuate the boll in the lock device by rotation of the inner member 14 about the hub axis.
[0075] The inner member 14 further comprises an inner lever arm 56. The inner lever arm 56 is configured to be attached to an inner elastic element of the lock device in order to rotate the inner member 14 about the hub axis to a neutral position.
[0076] The inner member 14 further comprises an inner collar 58. The inner collar 58 protrudes towards the intermediate member 16 and is configured to partly receive the intermediate body 26 of the intermediate member 16. Thereby, the intermediate member 16 can be held by the inner member 14. The inner member 14 further comprises an inner stop 60, here exemplified as a protrusion, for stopping the inner member 14 in the neutral position.
[0077] The intermediate member 16 further comprises a slit 62. The slit 62 may be used for rotationally aligning the intermediate member 16 with the outer member 12, when received in the outer collar 48, or for rotationally aligning the intermediate member 16 with the inner member 14, when received in the inner collar 58. The slit 62 may for example be engaged by a flat-blade screwdriver. When the intermediate member 16 is aligned with the outer member 12, the locking member 28 can be inserted into the outer opening structure 20 and into the intermediate opening structure 24. When the intermediate member 16 is aligned with the inner member 14, the locking member 28 can be inserted into the inner opening structure 22 and into the intermediate opening structure 24.
[0078] The attachment element 18 is configured to be resiliently deformed between the locking position and the unlocking position. The attachment element 18 comprises two attachment arms 64b, 64c. The attachment element 18 further comprises an attachment structure 66 for being engaged by the locking member 28. In
[0079] The attachment element 18 of this example is a resilient C-clip, for example made of metal, such as stainless steel. The attachment element 18 constituted by a C-clip expands when adopting the unlocking position and contracts when adopting the locking position.
[0080] The attachment element 18 further comprises two cam followers 70b, 70c. The cam followers 70b, 70c are each constituted by a sloping surface on an inside of a respective attachment arm 64b, 64c.
[0081] The hub 10 of the example in
[0082] Thus, in this example, the cam profiles 74b, 74c are provided on the cam element 72. However, the cam profiles 74b, 74c may be provided in alternative ways, for example provided directly on the intermediate member 16. In this case, the cam element 72 can be omitted.
[0083] Also the cam element 72 of this example is a resilient C-clip, for example made of plastic. The cam element 72 is configured to be attached to the intermediate member 16 by means of a snap-fit in the recess 30. This snap-fit may be permanent.
[0084] The cam element 72 can be inserted laterally into the attachment element 18, i.e. such that the cam element 72 is arranged within the attachment element 18 in a common extension plane, before attaching the cam element 72 to the intermediate member 16. When the attachment element 18 and the cam element 72 are arranged in this way and moved into the recess 30, the cam element 72 resiliently expands within the attachment element 18 prior to snapping into the recess 30.
[0085] The attachment element 18 and the cam element 72 may be attached to the intermediate member 16 by first arranging the cam element 72 inside the attachment element 18, and then attaching both the attachment element 18 and the cam element 72 together to the intermediate member 16, e.g. such that cam hooks 78b, 78c on a respective cam arm 76b, 76c snap onto respective steps (not shown) of the recess 3o in the intermediate member 16.
[0086] When the cam hooks 78b, 78c of the cam element 72 snap onto steps (not shown) in the recess 30 of the intermediate member 16, the cam element 72 at the same time pulls the attachment element 18 and sell-centers the attachment element 18 with respect to the intermediate member 16. The cam element 72 thereby constitutes a helping piece for the attachment of the attachment element 18 to the intermediate member 16. The recess 30, the cam element 72 and the attachment element 18 may be configured such that there is little or no deformation of the attachment element 18 during the attachment. In this example, the attachment element 18 is thus attached to the intermediate member 16 via the cam element 72.
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[0090] In
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[0097] One example of moving the attachment element 18 from the locking position 96 to the unlocking position will now be described. In the hub 10 in
[0098] By turning the screwdriver slightly, or by pushing it in as a wedge, the blade engages the outer back surface 82 of the cam element 72 and the inner back surface 80 of the attachment element 18. When turning the screwdriver further with a slight force, the blade pushes the attachment element 18 away from the cam element 72 (to the left in
[0099] Due to the cooperation between the cam followers 70b, 70c on the attachment element 18 and the cam profiles 74b, 74c on the cam element 72, frictional forces are reduced and the attachment element 18 can smoothly move between the locking position 96 and the unlocking position. This enables a reduced twisting force of a screwdriver when the blade is inserted into the opening 100.
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[0101] During the movement from the locking position 96 to the unlocking position 102, the attachment element 18 of this example partly slides and partly opens. Thereby, the degree of opening of the attachment element 18 can be reduced. This improves reliability of the design since the attachment element 18 is less prone to wear out due to repeated movements between the locking position 96 and the unlocking position 102. The resiliency of the attachment element 18 can thereby be maintained over time.
[0102] When the engagement between the locking member 28 and the attachment element 18 is released as shown in
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[0105] By simply inserting the locking member 28 from either the outside as in
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[0107] In
[0108] The lock device 104 further comprises a Mocking mechanism 118. The blocking mechanism 118 of this example comprises a blocking lever 120, and an actuator 122 for moving the blocking lever 120 between the illustrated blocking position, and an unblocking position, for example in response to an authorization signal. The actuator 122 comprises a motor for turning a worm gear engaged by a pin connected to the blocking lever 120. The power supply to the actuator 122 may be from an external power source, or from a battery provided in the lock device 104.
[0109] In the blocking position, the Mocking lever 120 blocks the intermediate blocking arm 32 of the intermediate member 16. Thereby, any rotation of the intermediate member 16, the outer member 12 rotationally locked to the intermediate member 16 by the locking member 28, and an outer door handle (not shown) connected to the outer member 12, is blocked.
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[0113] While the present disclosure has been described with reference to exemplary embodiments, it will be appreciated that the present invention is not limited to what has been described above. For example, it will be appreciated that the dimensions of the parts may be varied as needed.