lock assembly

Abstract

The present application relates to a lock assembly comprising: a lock cylinder comprising a cam; a door lock comprising a first cam follower and a second cam follower, each of the first and second cam followers configured to receive the cam; wherein rotation of the lock cylinder in a first rotational direction causes the cam to communicate with the first cam follower to drive the door lock from a retracted position to a first extended position, and further rotation of the lock cylinder in the first rotational direction causes the cam to communicate with the first cam follower to drive the door lock from the first extended position to a second extended position; wherein rotation of the lock cylinder in a second rotational direction, opposite the first rotational direction, causes the cam to communicate with the second cam follower to drive the door lock from the second extended position to the first extended position, and further rotation of the lock cylinder in the second rotational direction causes the cam to communicate with the first cam follower to drive the door lock from the first extended position to the retracted position.

Description

[0001] This application is a divisional application of Chinese patent application No. 201910386850.2 entitled "Lock Component". Technical Field

[0002] This application relates to lock components for panels (such as doors or windows). Background Technology

[0003] Panels such as doors or windows typically have locking mechanisms that allow the panel to be locked. This prevents unauthorized access to the door. For example, the locking mechanism may require inserting and turning the appropriate key before the door can be opened. Some locking mechanisms have a latch for providing a first locking point and a deadbolt for providing a second locking point. Summary of the Invention

[0004] In a first example embodiment, a lock assembly is provided, including: a lock cylinder including a cam; a door lock including a first cam follower and a second cam follower, each of the first cam follower and the second cam follower being configured to receive a cam; wherein rotation of the lock cylinder in a first rotational direction causes the cam to communicate with the first cam follower to drive the door lock from a retracted position to a first extended position, and further rotation of the lock cylinder in the first rotational direction causes the cam to communicate with the first cam follower to drive the door lock from the first extended position to a second extended position; wherein rotation of the lock cylinder in a second rotational direction opposite to the first rotational direction causes the cam to communicate with the second cam follower to drive the door lock from the second extended position to the first extended position, and further rotation of the lock cylinder in the second rotational direction causes the cam to communicate with the first cam follower to drive the door lock from the first extended position to a retracted position. Attached Figure Description

[0005] The invention has been described by way of example with reference to the accompanying drawings, which illustrate some embodiments of the invention. However, these are for illustrative purposes only. The invention is not limited to the specific details and corresponding descriptions in the drawings.

[0006] Figure 1 A lock component according to an example embodiment is shown.

[0007] Figure 2 An isometric front view of the lock assembly is shown.

[0008] Figure 3 An isometric rear view of the lock assembly is shown.

[0009] Figure 4 A front view of the lock assembly is shown, with the door lock in the retracted position.

[0010] Figure 5A partial front view of the lock assembly is shown, with the door lock in the retracted position to show the first cam follower and the second cam follower.

[0011] Figure 6 A rear view of the lock assembly is shown, with the door lock in the retracted position.

[0012] Figure 7 A lock assembly is shown, in which the door lock switches between a retracted position and a first extended position.

[0013] Figure 8 A front view of the lock assembly is shown, with the door lock in the first extended position.

[0014] Figure 9 A partial front view of the lock assembly is shown, with the door lock in a first extended position to show the first cam follower and the second cam follower.

[0015] Figure 10 A rear view of the lock assembly is shown, with the door lock in the first extended position.

[0016] Figure 11 A lock assembly is shown, in which the door lock switches between a first extended position and a second extended position.

[0017] Figure 12 A front view of the lock assembly is shown, with the door lock in the second extended position.

[0018] Figure 13 A partial front view of the lock assembly is shown, with the door lock in a second extended position to show the first cam follower and the second cam follower.

[0019] Figure 14 A rear view of the lock assembly is shown, with the door lock in the second extended position.

[0020] Figure 15 A lock assembly is shown, in which the door lock limiter is in the restricted position and the door lock is in the retracted position.

[0021] Figure 16 A lock assembly is shown, with the door lock limiter in the restricted position and the door lock in the extended position. Detailed Implementation

[0022] According to an example embodiment, the lock component is... Figure 1 and 2 As shown in the image.

[0023] The lock assembly depicted is a mortise lock assembly. That is, the lock assembly is designed to be installed in the mortise of a panel (such as a door or window).

[0024] The lock assembly has a body 110 for retaining components of the lock assembly and a cover 111 for closing the body 110. The body 110 and the cover 111 can be connected using fasteners 112 (such as rivets). The cover 111 has a drive hub hole 113 for allowing access to the drive hub 130, a day latch hole 114 for allowing access to the day latch hub 140, a lock cylinder hole 115 for allowing access to the lock cylinder 210, and a door lock limiter hole 116 for allowing access to the door lock limiter 180.

[0025] A forend plate 120 is disposed at one longitudinal end of the body 110. This can be attached to the body 110 by fasteners 121 (such as screws). The forend plate 120 has a lock hole 122 for allowing a lock 220 to pass through, and a latch hole 123 for allowing a latch 230 to pass through.

[0026] Fastener 124 can pass through front plate 120 into lock cylinder 210 to install lock cylinder 210 into lock assembly. Fastener can pass through hole 125 to install front plate 120 (and thus lock assembly) into front of door.

[0027] In use, the door lock 220 and the latch 230 can engage with a strike plate on the door frame. Each of the latch 230 and the door lock 220 can be inserted into a corresponding cavity in the strike plate. When this occurs, the latch 230 and / or the door lock 220 prevent or at least stop the door from opening. The door lock 220 can be retracted, for example by turning a key in the lock cylinder 210. The latch 230 can be retracted, for example by turning a handle. The lock hub 140 can prevent the handle from being operated in at least one direction. In addition, the latch locking plate 233 can be configured to communicate with the door lock such that when the door lock is extended, the latch locking plate 233 prevents the latch from retracting.

[0028] Figure 3 An isometric view of the internal components of the lock assembly is shown, with cover 111 omitted.

[0029] The drive hub 130 includes a center bore 131 that can receive a spindle of the handle. The center bore 131 can be keyed, for example by having a square cross-section in the same manner as the spindle. Operation of the handle causes the spindle to rotate, which in turn causes the drive hub 130 to rotate.

[0030] The drive hub 130 has an actuator 132 that rotates in unison with the drive hub 130. The actuator 132 is located in a bore 231 of the latch cam follower 232. The latch cam follower 232 is connected to the latch 230 via fasteners, or may otherwise be integral with the latch 230. Rotation of the drive hub 130 in a first rotational direction (such as clockwise) causes the latch 230 to retract. When the user releases the handle, the latch biasing device 133 extends the latch 230.

[0031] The day lock hub 140 includes a center hole 141 that can receive a bolt spindle. The center hole 141 can be keyed, for example by having a square cross-section in the same manner as the bolt spindle. Operation of the bolt causes the bolt spindle to rotate, which in turn causes the day lock hub 140 to rotate.

[0032] The day lock hub 140 is connected to the day lock plate 142. When the day lock hub 140 rotates to the engaged position, the day lock plate 142 moves to prevent the drive hub 130 from rotating at least in the first rotational direction. This requires disengaging the day lock hub 140 before operating the handle. Therefore, the day lock hub 140 can be accessed from inside the door to prevent a user outside the door from operating the handle. This provides a certain level of security.

[0033] The door lock 220 moves laterally between a retracted position, a first extended position, and a second extended position. In the retracted position, the door lock 220 is fully (or at least substantially) located within the lock body 110. In the first extended position, the door lock 220 penetrates the lock hole 122 of the lock body 110 by a first distance. In the second extended position, the door lock 220 penetrates the lock hole 122 of the lock body 110 by a second distance greater than the first distance.

[0034] The locking plate 150 is mounted to pivot about the pin 151 between a locked position where the lock 220 cannot move and an unlocked position where the lock 220 can move. A biasing member 152 (such as a leaf spring) can bias the locking plate 150 toward the locked position.

[0035] The first cam follower 240 is connected to or integrated with the door lock 220. The first cam follower 240 has a first arm 241 and a second arm 242 descending from an end, the first arm 241 and the second arm 242 being spaced apart to receive a cam. A post 243 extends laterally from the first cam follower 240.

[0036] The post 243 can move through the channel 153 in the locking plate 150. A first notch 154, a second notch 155, and a third notch 156 are provided outside the channel 153. These notches correspond to the retracted position, the first extended position, and the second extended position of the door lock 220, respectively.

[0037] A second cam follower 250 is disposed on the body 110 of the lock assembly. The second cam follower has a track 251, which is defined at one end by an arm 252 and at the other end by a stop 253. A first cam follower 240 is movable along the track 251. A spring 254 (or other biasing device) biases the first cam follower 240 toward the stop 253 opposite to the arm 252.

[0038] The lock cylinder 210 has a cam 211 that rotates around the lock cylinder 210. This occurs, for example, when a suitable key is inserted into the lock cylinder 210. The rotation of the key causes the cam 211 to rotate uniformly.

[0039] Cam 211 is positioned to engage with locking plate 150 and can move locking plate 150 to the unlocked position by resisting bias member 152.

[0040] Cam 211 can move door lock 220 between a retracted position and a first extended position by communicating with the first arm 241 of the first cam follower 240 of door lock 220. Cam 211 can move from the first extended position to a second extended position by communicating with the second arm 242 of the first cam follower 240, and from the second extended position to the first extended position by communicating with the arm 252 of the second cam follower 250. This operation... Figures 4 to 14 It is shown in more detail below.

[0041] The lock assembly includes a door lock limiter 180 to selectively limit the extent of extension of the door lock 220. Specifically, the door lock limiter 180 prevents the door lock 220 from entering a second extended position. The door lock limiter 180 has an integrally formed limiter cam 181 that pivots within the body. The door lock limiter 180 moves between a restricted position and an unrestricted position, which can be separated by approximately 90°. When the door lock limiter 180 is in the restricted position, the limiter cam 181 is located in the path of the first cam follower 240. When the door lock 220 is in the first extended position, the first cam follower 240 abuts against the limiter cam 181. This prevents further movement of the door lock 220 toward the second extended position. When the door lock limiter 180 is in the unrestricted position, the limiter cam 181 is not located in the path of the first cam follower 240. The door lock limiter 180 in the second position does not prevent movement of the door lock 220.

[0042] The door lock limiter 180 can be selectively rotated between a restricted position and an unrestricted position, for example, using a tool (such as a hex wrench) or by the user's fingers. The door lock limiter 180 is engaged with a configuration 182 on the body 110 and / or cover 111. Configuration 182 has two recesses 183. A spring (or other biasing device) biases the door lock limiter 180 into the recesses 183 to prevent rotation of the door lock limiter 180. In some cases, the door lock limiter 180 may require a lateral force before a rotational force can be applied to rotate the door lock limiter 180 against the spring bias. This allows the door lock limiter 180 to leave one of the recesses 183 and rotate to align with the other recess 183. Each recess may correspond to one of the restricted and unrestricted positions. When the user releases the lateral force, the door lock limiter 180 then re-enters the recess 183. This allows the limiter cam 181 to resist lateral forces from the first cam follower 240 without rotating back to the unrestricted position.

[0043] Retract to the first extended position

[0044] Figures 4 to 6 The lock assembly is shown with the door lock 220 in the retracted position. The locking plate 150 is in the locked position, and the pin 243 is positioned in the first recess 154 of the locking plate 150. Therefore, the door lock 220 cannot move laterally.

[0045] When the user rotates the lock cylinder 210, the lock assembly moves to... Figure 7 The state shown.

[0046] Cam 211 engages with the first cam follower 240. The second arm 242 of the first cam follower 240 may be tilted to allow cam 211 to pass over the second arm 242 without contact. As cam 211 engages with the first cam follower 240, cam 211 pushes against locking plate 150. This resists the biasing of biasing member 152 and pivots locking plate 150 to the unlocked position. This causes post 243 to disengage from first notch 154.

[0047] Further rotation of the lock cylinder 210 causes the lock assembly to move to... Figures 8 to 10 The state shown.

[0048] Cam 211 pushes the first arm 241 of the first cam follower 240. This causes the first cam follower 240 to move along the track 251 of the second cam follower 250, which in turn causes the door lock 220 to enter the first extended position. Cam 211 then disengages from the first cam follower 240. Because cam 211 no longer pushes the locking plate 150, biasing member 152 forces the locking plate 150 back to the locked position. Post 243 then enters the second recess 155. The second recess 155 is positioned such that when cam 211 disengages from the locking plate 150, post 243 aligns with the second recess 155. This prevents further lateral movement of the first cam follower 240.

[0049] The movement of the first cam follower 240 eliminates the compression on the spring 254. The spring 254 maintains sufficient tension to hold the second cam follower 250 in place relative to the first cam follower 240.

[0050] In this state, the door lock 220 is in the first extended position and can therefore engage with the impact plate on the door frame. This is sufficient to lock the door and thus provide adequate security.

[0051] Therefore, the key can be removed from the lock cylinder 210 after it has been rotated further to return the lock cylinder 210 to the intermediate position.

[0052] By rotating the lock cylinder in opposite directions, the door lock 220 can move from a first extended position to a retracted position. Cam 211 forces the locking plate 150 into the unlocked position and pushes the second arm 242 of the first cam follower 240. This causes the first cam follower 240 to slide along the track 251 of the second cam follower. This, in turn, moves the door lock 220 to the retracted position. When cam 211 disengages from the first cam follower 240, it forces the locking plate 150 from the biasing member 152 into the locked position, and the pin 243 enters the first recess 154.

[0053] From the first extended position to the second extended position

[0054] from Figures 8 to 10 As shown, further rotation of the lock cylinder 210 causes the lock assembly to move to... Figure 11 The state shown. This may require at least one full rotation of the lock cylinder 210.

[0055] Cam 211 enters the space between arm 252 of second cam follower 250 and second arm 242 of first cam follower 240. Arm 252 of second cam follower 250 may be tilted to allow cam 211 to pass through arm 252 without contact. As cam 211 enters the space, it pushes locking plate 150. This resists the biasing of biasing member 152 and pivots locking plate 150 to the unlocked position. This causes post 243 to disengage from second notch 155.

[0056] Further rotation of the lock cylinder 210 causes the lock assembly to move to... Figures 12 to 14 The state shown.

[0057] Cam 211 pushes the second arm 242 of the first cam follower 240. This pushes the first cam follower 240, which in turn drives the door lock 220 into the second extended position. Additionally, the first cam follower 240 pushes the stop 253 of the second cam follower 250, causing the second cam follower 250 to move laterally in unison with the first cam follower 240. Cam 211 disengages from the space between the arm 252 of the second cam follower 250 and the second arm 242 of the first cam follower 240. Because cam 211 no longer pushes the locking plate 150, biasing member 152 pushes the locking plate 150 back to the locked position. Post 243 then enters the third recess 156. The third recess 156 is positioned such that post 243 aligns with the third recess 156 when cam 211 disengages from contact with the locking plate 150. Therefore, the locking plate 150 prevents the first cam follower 240 from moving laterally, and the spring 254 prevents the second cam follower 250 from moving relative to the first cam follower 240.

[0058] In this state, the door lock 220 is in the second extended position. This allows the door lock 220 to engage with the impact plate on the door frame (if in the first extended position, a gap is maintained), or to further engage with the impact plate.

[0059] Therefore, the key can be removed from the lock cylinder 210 after it has been rotated further to return the lock cylinder to the intermediate position.

[0060] By rotating the lock cylinder in opposite directions, the door lock 220 can move from the second extended position to the first extended position. Cam 211 forces the locking plate 150 into the unlocked position and pushes the arm 252 of the second cam follower 250. This causes the second cam follower 250 to move laterally. Additionally, due to the stop 253 and the spring 254, the first cam follower 240, and therefore the door lock 220, moves laterally in unison with the second cam follower 250. This moves the door lock 220 to the first extended position. When cam 211 leaves the space between the arm 252 of the second cam follower 250 and the second arm 242 of the first cam follower 240, the locking plate 150 enters the locked position, and the pin 243 enters the second recess 155. Therefore, the locking plate 150 prevents the first cam follower 240 from moving laterally, and the spring 254 prevents the second cam follower 250 from moving relative to the first cam follower 240.

[0061] Limiter

[0062] Figures 4 to 14 The door lock limiter 180 is shown in the unrestricted position. In this position, the door lock limiter 180 does not prevent the door lock 220 from entering the second extended position.

[0063] However, in some cases, it may be desirable to restrict the door lock 220 from entering its second extended position. One possible scenario is that the door lock recess in the door frame is too shallow to allow the door lock 220 to be adjusted to its second extended position. To avoid the need to reassemble the lock assembly for different door lock sizes, the door lock limiter 180 can be positioned in a restricted position.

[0064] Figure 15 Similar to Figure 4 Except when the door lock limiter 180 is in the restricted position, the limiter cam 181 is aligned with the path of the first cam follower 240. However, because the door lock is in the retracted position, the limiter cam 181 does not abut against the first cam follower 240. Therefore, the door lock limiter 180 does not prevent the door lock 220 from moving between the retracted position and the first extended position.

[0065] Figure 16 Similar to Figure 8 Except for the door lock limiter 180 being in the restricted position. Therefore, Figure 15 and Figure 16 Conversion between and Figure 4 and Figure 8 The conversions between them are the same.

[0066] The limiter cam 181 is aligned with the path of the first cam follower 240. The limiter cam 181 may abut against the first arm 241 of the first cam follower 240 in this position, or may abut against the first arm 241 of the first cam follower 240 when the door lock 220 moves further toward the second extended position.

[0067] The limiter cam 181 resists the force of cam 211 on the second arm 242 of the first cam follower 240. Therefore, rotating the lock cylinder will not cause the door lock 220 to move from the first extended position to the second extended position.

[0068] In this way, a single lock component can be used in various door frame configurations.

[0069] explain

[0070] Discussions of any existing technology should not be interpreted as an admission that such technology constitutes part of common knowledge.

[0071] Unless otherwise stated, the term "including" and other grammatical forms are intended to have an inclusive meaning. That is, they should be considered as intended to include the listed parts, and may include other unspecified parts or elements.

[0072] The invention has been described by way of examples. While these examples have been described in detail, this should not be construed as limiting or restricting the scope of the claims to those details. Other advantages and modifications will readily occur to those skilled in the art. Therefore, the invention is not limited in its broader aspects to the specific details of the illustrative examples shown and described. Thus, modifications to the details may be made without departing from the spirit or scope of the overall inventive concept.

Claims

1. A locking assembly, the locking assembly comprising: Lock cylinder, the lock cylinder including a cam; A door lock, the door lock including a first cam follower and a second cam follower, each of the first cam follower and the second cam follower being configured to receive the cam; as well as A door lock limiter, including a limiter cam, the door lock limiter being selectively movable between a restricted position and an unrestricted position; Wherein, the rotation of the lock cylinder in the first rotation direction causes the cam to communicate with the first cam follower to drive the door lock from the retracted position to the first extended position, and the further rotation of the lock cylinder in the first rotation direction causes the cam to communicate with the first cam follower to drive the door lock from the first extended position to the second extended position; Wherein, the rotation of the lock cylinder in a second rotation direction opposite to the first rotation direction causes the cam to communicate with the second cam follower to drive the door lock from the second extended position to the first extended position, and further rotation of the lock cylinder in the second rotation direction causes the cam to communicate with the first cam follower to drive the door lock from the first extended position to the retracted position. In the restricted position, the limiter cam is aligned with the movement path of the first cam follower to prevent the door lock from moving from the first extended position to the second extended position by abutting against the first cam follower; in the unrestricted position, the limiter cam is not aligned with the movement path of the first cam follower, thereby not preventing the door lock from moving from the first extended position to the second extended position; and The door lock limiter is configured to selectively apply different permissible extensions of the door lock based on different depths of the door lock notch by selectively moving its movement between the restricted position and the unrestricted position.

2. The lock assembly according to claim 1, wherein, The first cam follower includes a first arm and a second arm, and the second cam follower includes an arm; The cam communicating with the first cam follower to drive the door lock from a retracted position to a first extended position includes the cam pushing the first arm of the first cam follower; The cam communicating with the first cam follower to drive the door lock from the first extended position to the second extended position includes the cam pushing the second arm of the first cam follower; The cam communicating with the second cam follower to drive the door lock from the second extended position to the first extended position includes the cam pushing the arm of the second cam follower; as well as The cam communicates with the first cam follower to drive the door lock from the first extended position to the retracted position, including the cam pushing the second arm of the first cam follower.

3. The lock assembly according to claim 2, wherein, The second cam follower includes a track, and the first cam follower is configured to slide along the track to move relative to the second cam follower.

4. The lock assembly of claim 3, further comprising a biasing device configured such that when the lock is in the first extended position or the second extended position, the biasing device resists movement of the first cam follower relative to the second cam follower.

5. The lock assembly according to claim 1, further comprising a locking plate, the locking plate including a channel and a plurality of recesses; wherein, The first cam follower includes a post configured to move within a channel of the locking plate and to be located within each of the recesses.

6. The lock assembly according to claim 5, wherein, When the post is located in the first recess, the door lock is in the retracted position; when the post is located in the second recess, the door lock is in the first extended position; and when the post is located in the third recess, the door lock is in the second extended position.

7. The lock assembly according to claim 6, wherein, The locking plate is movable between a locked position and an unlocked position, wherein when the locking plate is in the locked position, the locking plate prevents the door lock from moving between the retracted position and the first extended position or between the first extended position and the second extended position, and when the locking plate is in the unlocked position, the locking plate does not prevent the door lock from moving between the retracted position and the first extended position or between the first extended position and the second extended position.

8. The lock assembly according to claim 7, wherein, When the cam is in communication with the first cam follower or the second cam follower, the locking plate is in the unlocked position.

9. The lock assembly according to claim 8, wherein, The locking plate is biased toward the locking position.

10. The lock assembly according to any one of claims 1 to 9, wherein, Moving the door lock restrictor between the restricted position and the unrestricted position includes lateral force and rotational force.

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