TWI429821B - Lock assembly - Google Patents

Description

Lock assembly

The present invention is directed to an actuator assembly for use as part of a lock assembly and is associated with a lock assembly including the actuator assembly. The lock assembly has a bolt that is moveable relative to a housing between an extended position and a retracted position. These locks are typically used to secure a movable member such as a door and the like in a closed position. The invention is described below with reference to convenience, and particularly to the use of the door, although it should be understood that the invention has other uses.

The lock assembly has an internal knob or a similar structure that can be operated from the inside to move the bolt to the extended position, which can be used by owning a room to secure the door to the room when it is in the room In a closed position. Or the bolt can be moved by operating another handle and the knob will operate a locking mechanism to render the additional handle inoperable. This form of lock assembly is often referred to as a privacy lock and is used in rooms where the owner is more in need of privacy.

The privacy lock typically has an external actuator that can be moved by the outer side for the bolt to be moved to the release position. For example, it may be desirable, for example, when the owner can no longer operate the knob. Or the person in the room may need to have a requirement that exceeds the privacy required by the owner. The form of the external actuator includes a rectangular slot for receiving a head end of a screwdriver. Turn the screwdriver to move the bolt to the release position. Or it can provide a key-controlled actuation The device is such that the person in the tube can operate the additional handle.

The problem with this form of external actuator is that whether the person in the tube uses a screwdriver or a key, the owner can hold the knob and provide a greater force than the one provided by the tube. Resist the rotation. This may not be acceptable depending on the environment in which the lock is installed.

It would be better to provide a lock assembly that would allow the owner to maintain a certain level of privacy while providing a way for the owner to override the owner.

According to an aspect of the present invention, there is provided an actuator assembly for operating a locking mechanism having a lock assembly, the actuator assembly including: an internal drive member that is The lock member assembly operates on an inner side thereof for rotation about an axis; an external drive member is operable from an outer side of the lock member assembly; a driven member is rotatable about the shaft Rotating between a first position and a second position to operate the locking mechanism; and a stopper, the stopper being in the inner driving member and the driven member when in an active condition Providing a driving interaction between the internal driving members causing rotation of the driven member, and when the stopper is in an inactive condition, the driven member can be operated by operating the external driving member Rotating in the inner drive member; and wherein the inner drive member includes a drive member having a surface extending substantially perpendicular to the shaft, whereby the surface interacts with the retainer In effect, the drive element includes a rotation limiting member for limiting the degree of rotation of the drive element to a selected range.

Preferably, the surface includes a configuration that engages at least a portion of the detent when the detent is in the active condition. The drive element, more preferably, includes at least one arm that interacts with a stop of the lock assembly in a condition that limits the degree of rotation of the drive member. The preferred selected range is 90°. Preferably, the inner drive member includes an armable member having a shaft for driving engagement with the drive member.

Preferably, the drive member includes a driven member having a surface extending substantially perpendicular to the shaft such that the surface interacts with the retainer. The drive member, however, more preferably includes a securing member that secures the drive member to the inner drive member to limit axial movement of the driven member relative to the inner drive member. The fixed element and the driven element are preferably framed to allow the drive element to rotate relative to the drive element. The driven component is preferably configured to interact with the locking mechanism. The driven component preferably includes a slot for receiving the tail rod of the locking mechanism such that rotation of the drive member causes rotation of the tail rod. The external drive member is preferably operable to rotate the tail rod about the shaft. The external drive member more preferably includes a key operated cylinder lock having a cylinder that rotates about the shaft to rotate the tail rod.

Preferably, the detent comprises two stop elements, each stop element being equidistant from the opposite side of the shaft and located on opposite sides of the shaft. more Preferably, each of the stop elements moves between an active position and an inactive position in the axial direction, the positions corresponding to the active and inactive conditions of the stop, respectively. More preferably, the detent includes a biasing member for pressing each of the stop members toward the active position.

According to another aspect of the present invention, there is provided a mortice lock assembly comprising an actuator assembly as claimed in any of the claims.

Simple illustration

The present invention is described in more detail in the following description with reference to the accompanying drawings, which illustrate, The particularity of the drawings and the associated detailed description are not to be construed as a

Figure 1 is a front elevational view of a preferred embodiment of an actuator assembly forming a portion of a lock assembly attached to a door.

Fig. 2 is a cross-sectional view taken through line A-A of Fig. 1.

Fig. 3 is a cross-sectional view taken along line B-B of Fig. 2.

Figure 4 is a rear elevational view of the actuator assembly separated from the door shown in Figure 1.

Figure 5 is an exploded view of the actuator assembly shown in Figure 2.

Figure 6 is a front elevational view of a preferred form of a mortice lock forming a portion of the lock assembly.

Detailed description of the preferred embodiment

Reference is first made to Figure 1 which illustrates the formation of a lock attached to a door 3 A preferred embodiment of the actuator assembly 1 of a portion of the assembly 2. The illustrated lock member assembly 2 preferably includes a mortice lock assembly 30 (see FIG. 6) having a bolt 4 that is in an extended position relative to the door 3 and a Move between retracted positions. It includes an additional actuator assembly 5 that is operable to move the bolt 4 from the extended position to the retracted position. The function of the actuator 1 in the particular example shown is to control the operation of the additional actuator assembly 5 rather than moving the bolt 4. It should be understood, however, that it may additionally control the movement of the bolt 4 or control the movement of additional bolts (not shown).

Referring now to Figure 2, an actuator assembly 1 and an additional actuator assembly 5 are illustrated in cross-section. The additional actuator assembly 5 includes a knob 6 that can be gripped by a hand to rotate along the axis X-X. A shaft 7 extends in the axial direction from the rear end of the knob 6. A drive element 8 connected to the end of the spindle 7 rotates with the spindle 7 and the knob 6. A bushing 9 is provided in a hole formed in the furniture panel 10, which can provide a cylindrical sleeve to support the shaft 7. A mandrel (not shown) is located within the hub and is preferably secured to a mortise lock assembly (see Figure 6) for mutual mutual understanding in the locksmithing industry. effect. In this preferred configuration, rotation of the mandrel causes rotation of the retaining sleeve to retract the latch bolt 4. This form of additional actuator is merely a preferred embodiment, and the invention is not limited to the use of an additional actuator 5 of this type.

Still referring to Fig. 2, the actuator assembly 1 includes a knob 11 that can be gripped by a hand having an axis 12 extending from a rear end thereof. Illustrated by the institute The shape of the knob 11 is not absolute and can be varied. The shaft 12 is disposed in a bushing 13 formed in a hole in the furniture panel 10. The bushing 13 again provides support for the axle 12 while allowing the hub 12 to rotate within the bushing 13. The knob 11 is coupled to a drive member 14 to form an internal drive member. The drive member is rotatable along the axis Y-Y.

The drive member is coupled to a driven member. The driven member includes a driven member 15 and a fixing pin 16 that fixes the driven member 15 to one of the free ends of the shaft 12. Such a structure can fix the axial position of the drive element 15 relative to the drive element 14. The retaining pin 16 is maintained in a position relative to the drive element by a coil 17. Other means for maintaining the securing pin 16 are clearly feasible.

The drive member is coupled to the drive member by a structure that permits limited rotation of the drive member relative to the drive member. This allows an external drive member 18 (see Figure 5) to operate without causing the internal drive member to rotate. This structure is often referred to as a loss motion arrangement. It can be achieved by any suitable structure, however in the illustrated construction the driven element 15 includes an interior space in which the securing pin 16 is free to move between abutments. This space 19 is more clearly illustrated in Figure 3, in which it is shown that the 21 seats will partially define each of the blocks 20 of the space 19. The relative angular spacing of each of the seats 20 will determine the extent of the motion loss, which is 90 in the illustrated configuration. The degree of motion loss may vary depending on the requirements of the lock assembly 2. a stop post 22 (see Fig. 4) interacts with the arm 23 of the drive member 14 to limit the rotation of the drive member 14 to 90° in accordance with the limit of the operational wear.

A detent 24 can provide a drive interaction between the drive element 14 and the driven element 15. This stopper 24 is more clearly illustrated in Fig. 5. The illustrated stopper includes a pair of stop members 25, each of which is disposed on the opposite side of the same interval from the axis Y-Y. This position is preferred because it provides a balance of the pressure exerted on the drive member 14 by the stop 24. Each of the stop members 25 is pressed by a compression spring 26 and is located in a recess formed in the surface of the drive member 14. This allows the drive interaction to occur between the drive element 14 and the driven element 15 so that rotation of the knob 11 will cause rotation of the driven element 15.

Rotation of the driven member 15 will cause the tail rod 28 to rotate (as shown in Figures 2 and 5), which will result in a locking mechanism within the mortice lock assembly 30 as shown in Figure 6 ( Some of the operational features are not shown). The tail boom 28 preferably interacts with the cam member 32 of the mortice lock assembly 30 in a manner known in the locksmithing art. This tail bar 28 can be additionally rotated from the outside of the lock member assembly 2 by, for example, operating a cylinder lock member 18. In the case where the owner on the inside maintains the knob 11 in its position and the outer actuator 18 is operated, the stopper 24 will become an inoperable condition. More specifically, each stop element 25 will move out of its respective recess 27 to allow the driven element 15 to rotate relative to the drive element 14, which in turn will allow rotation 28 of the tail rod.

It should be understood that the actuator assembly can provide a means for lifting A simple and effective assembly of the way the owner is beyond the owner.

The invention may be embodied in various different modifications and/or variations and modifications without departing from the spirit or scope of the invention.

1, 5‧‧‧ actuator assembly

2‧‧‧Lock assembly

3‧‧‧

4‧‧‧ bolt

6, 11‧‧ ‧ knob

7, 12‧‧‧ Axis

8, 14‧‧‧ drive components

9, 13‧‧‧ bushing

10‧‧‧Furniture panels

15‧‧‧Driven components

16‧‧‧fixed pin

17‧‧‧Spring coil

18‧‧‧External drive components

19‧‧‧ Space

20‧‧‧ blocks

21‧‧‧Resident

22‧‧‧stop column

23‧‧‧ Arm

24‧‧‧stop

25‧‧‧stop components

26‧‧‧Compressed spring

28‧‧‧ tail rod

30‧‧‧Blinking lock assembly

31‧‧‧Fixed sleeve

32‧‧‧Cam components

Figure 1 is a front elevational view of a preferred embodiment of an actuator assembly forming a portion of a lock assembly attached to a door.

Fig. 2 is a cross-sectional view taken through line A-A of Fig. 1.

Fig. 3 is a cross-sectional view taken along line B-B of Fig. 2.

Figure 4 is a rear elevational view of the actuator assembly separated from the door shown in Figure 1.

Figure 5 is an exploded view of the actuator assembly shown in Figure 2.

Figure 6 is a front elevational view of a preferred form of a mortice lock forming a portion of the lock assembly.

1‧‧‧ actuator assembly

2‧‧‧Lock assembly

3‧‧‧

4‧‧‧ bolt

5‧‧‧Actuator assembly

Claims (17)

An actuator assembly for operating a locking mechanism having a lock assembly, the actuator assembly including: an internal drive member operable from an inner side of the lock assembly, Rotating about an axis; an external drive member operable from an outer side of the lock member assembly; a driven member circumscribing the shaft between a first position and a second position Rotating to operate the locking mechanism; and a stopper that, when in an active condition, provides a driving interaction between the internal drive member and the driven member, such that the internal drive Rotation of the member causes rotation of the driven member, and when the stopper is in an inactive condition, the driven member is rotatable relative to the internal drive member by the external drive member; and wherein the interior The drive member includes a drive member having a surface extending substantially perpendicular to the shaft, whereby the surface interacts with the retainer, the drive member including a plurality of degrees of rotation for the drive member Within a selected range of the rotation restricting member. The actuator assembly of claim 1, wherein the surface includes one of the at least one portion of the retainer that receives the retainer when in the active condition. An actuator assembly of claim 1, wherein the drive element comprises At least one arm that interacts with a stop of the lock assembly. The actuator assembly of claim 2, wherein the drive member includes at least one arm for interacting with a stop member of the lock member assembly. The actuator assembly of any of claims 1 to 4, wherein the selected range is 90°. The actuator assembly of any of claims 1 to 4, wherein the inner drive member includes an arm-engageable member having a shaft that is drivingly engaged with the drive member. The actuator assembly of any one of claims 1 to 4, wherein the driven member includes a driven member having a surface extending substantially perpendicular to the axis such that the surface is associated with the stop Interaction. The actuator assembly of claim 7, wherein the driven member includes a fixed member that secures the driven member to the inner drive member to limit axial movement of the driven member relative to the inner drive member. The actuator assembly of claim 8, wherein the fixed element and the driven element are configured to allow the driven element to rotate relative to the driven element. The actuator assembly of claim 7, wherein the driven component is configured to interact with the locking mechanism. The actuator assembly of claim 10, wherein the driven member includes a slot for receiving a tail rod of the locking mechanism such that rotation of the driven member causes the tail rod to rotate. The actuator assembly of claim 11, wherein the external drive member is operable to rotate the tail rod about the shaft. The actuator assembly of claim 12, wherein the external drive member comprises a key operated cylinder lock having a cylinder that rotates about the shaft to rotate the tail rod. The actuator assembly of any of claims 1 to 4, wherein the retainer includes two stop elements, each stop element being equidistant from the opposite side of the shaft and located opposite the shaft On the side. The actuator assembly of claim 14, wherein each of the stop members moves between an active position and an inactive position in an axial direction, the positions corresponding to the action of the stop, respectively The situation and the inability to act. The actuator assembly of claim 15 wherein the retainer includes a biasing member for biasing each of the stop members toward the active position. A mortice lock assembly comprising an actuator assembly as claimed in any one of claims 1 to 4.