Inverted barrier rack and pinion

Abstract

An interchangeable lock cylinder is disclosed for use with a key and has a locked state and an unlocked state. The lock cylinder may include a housing, a ferrule, and a lock. The ferrule may be positioned within the housing and rotatable relative to the housing about a longitudinal axis of the ferrule between a first ferrule position and a second ferrule position. The ferrule may include a key slot adapted to receive a key. The lock is rotatable about a lock axis between a first position in which rotation of the ferrule is restricted and a second position in which the ferrule is rotatable from a first ferrule position to a second ferrule position. The lock axis may be positioned outside the envelope of the ferrule.

Description

Technical Field

[0001] The present disclosure relates to lock cylinders and associated keys, and in particular to interchangeable lock cylinders having arcuate stops. Background Art

[0002] There are various examples in the art for providing interchangeable lock cylinders with blocking devices to verify the key and allow locking or unlocking of the lock cylinder. It may be beneficial to incorporate a means of verifying the key in order to reduce the situation where the interchangeable lock cylinder is unlocked or locked by a key or other mechanism that is not authorized for use with the interchangeable lock cylinder. For example, the lock cylinder may include various pins that are actuated by the key to be placed in an unlocked position when the pins are properly engaged by the profile of the key. If the key profile fails to properly engage the pins, the key is not authenticated and the lock cylinder is not unlocked. In other examples, an element that blocks the key from being inserted into the keyway may be incorporated into the lock cylinder unless the lock cylinder has an engagement feature that allows the key to be fully inserted and bypass the block.

[0003] There remains a need for an interchangeable lock cylinder for unlocking and / or locking a barrier that provides additional improvements in security. Summary of the invention

[0004] In an embodiment, an interchangeable lock cylinder for use with a lock device having a locked state and an unlocked state is provided.

[0005] In a first example ("Example 1"), a lock cylinder for use with a key may include: a housing; a mortise positioned within the housing and rotatable relative to the housing about a longitudinal axis of the mortise between a first mortise position and a second mortise position; and a lock. The mortise may include a keyway adapted to receive a key. The lock may rotate about a lock axis between a first position and a second position, in the first position, in which rotation of the mortise is restricted, and in the second position, in which the mortise may rotate from the first mortise position to the second mortise position. The lock may rotate within an envelope of the housing, and the lock axis may be positioned outside the envelope of the mortise.

[0006] In a second example ("Example 2"), the lock cylinder of Example 1, wherein the housing may include a passageway to receive the mortise, and wherein a lock axis of the lock may be positioned within the housing.

[0007] In a third example ("Example 3"), the lock cylinder of Example 1, wherein the housing may include: an upper region having a first cylindrical portion having a first maximum lateral extent; a lower region having a second cylindrical portion having a second maximum lateral extent; and a waist having a third maximum lateral extent. The third maximum lateral extent may be less than the first maximum lateral extent and may be less than the second maximum lateral extent.

[0008] In a fourth example ("Example 4"), the lock cylinder of Example 1, wherein a lock axis of the lock may be skewed relative to a longitudinal axis of the mortise.

[0009] In a fifth example ("Example 5"), the lock cylinder of Example 1, wherein a center plane of the lock may intersect a longitudinal axis of the mortise.

[0010] In a sixth example ("Example 6"), the lock cylinder of Example 1, wherein the mortise core may further include a lock channel, and the lock may be positioned in the lock channel.

[0011] In a seventh example ("Example 7"), the lock cylinder of Example 1, wherein the lock may include a first end and a second end, and the housing may include at least one lock receiver. When the lock is in the second position, the first end and the second end of the lock may be spaced apart from the at least one lock receiver.

[0012] In an eighth example ("Example 8"), the lock cylinder of Example 1, wherein the lock is rotatable from the second position to a third position, in which rotation of the mortise is restricted.

[0013] In a ninth example ("Example 9"), the lock cylinder of Example 8, wherein the lock may include a first end and a second end, and the housing may include at least one lock receiver. When the lock is in the first position, the first end of the lock may be received in the at least one lock receiver. When the lock is in the third position, the second end of the lock may be received in the at least one lock receiver.

[0014] In a tenth example (“Example 10”), the lock cylinder of Example 8 may further include a front face, and when the lock is in the first position, the lock is in a proximal-most position relative to the front face, and when the lock is in the third position, the lock is in a distal-most position relative to the front face.

[0015] In an eleventh example ("Example 11"), the lock cylinder of Example 1, wherein the mortise core may include an arcuate surface having a center of curvature, and a lock axis of the lock may intersect the center of curvature.

[0016] In a twelfth example ("Example 12"), the lock cylinder of Example 11, wherein the lock may include an arcuate stopper, and the arcuate stopper may be supported by and rotate on the arcuate surface.

[0017] In a thirteenth example ("Example 13"), the lock cylinder of Example 6 may further include a lock actuator positioned within the lock channel of the mortise. The lock actuator may include a rack and a spring longitudinally aligned with the rack. The rack may include a receiver, one end of the spring may be received on the receiver, and the other end of the spring may be received by the mortise. The spring may provide a biasing force to bias the lock to the first position.

[0018] In a fourteenth example ("Example 14"), the lock cylinder of Example 13, wherein a center plane of the lock may intersect the rack.

[0019] In a fifteenth example ("Example 15"), the lock cylinder of Example 13, wherein the lock actuator is translatable within the mortise in a direction parallel to a longitudinal axis of the mortise.

[0020] In a sixteenth example ("Example 16"), the lock cylinder of Example 15, wherein translational movement of the lock actuator within the lock cylinder can cause the lock to rotate about the lock axis.

[0021] In a seventeenth example ("Example 17"), the lock cylinder of Example 15, wherein the rack may further include gear teeth, and the lock may include a pinion that meshes with the gear teeth of the rack so that translation of the lock actuator can cause the lock to rotate about the lock axis.

[0022] In an eighteenth example ("Example 18"), the lock cylinder of Example 16, wherein the lock can be rotated from the first position to the second position against the biasing force of the spring.

[0023] In a nineteenth example ("Example 19"), the lock cylinder of Example 1, wherein in the first position, rotation of the mortise toward the second mortise position can be restricted.

[0024] In a twentieth example ("Example 20"), a lock core for use with a key may include: a housing; a ferrule positioned within the housing and rotatable relative to the housing about a longitudinal axis of the ferrule between a first ferrule position and a second ferrule position; a blocking member; and a gear assembly. The ferrule may include a keyway adapted to receive a key. The blocking member may be movable between a first position that limits rotation of the ferrule, a second position that allows rotation of the ferrule, and a third position that limits rotation of the ferrule. The gear assembly may be positioned within the ferrule and configured to cause the blocking member to move between the first position, the second position, and the third position.

[0025] In a twenty-first embodiment ("Embodiment 21"), a key for use with a lock cylinder is provided. The lock cylinder may include a housing, a lock actuator, a mortise, a lock, the mortise being positioned within the housing and being rotatable relative to the housing about a longitudinal axis of the mortise between a first mortise position and a second mortise position, the lock being rotatable about the lock axis between a first position and a second position, the rotation of the mortise being restricted in the first position, and the mortise being rotatable from the first mortise position to the second mortise position in the second position. The mortise may include a keyway adapted to receive a key. The lock may rotate within an envelope of the housing, and the lock axis may be positioned outside the envelope of the mortise. The key may include a key bow and a key handle. The key handle may include a groove along at least a portion of a side of the key handle. The groove may define a length terminating at a shoulder. The shoulder may include a profile matching a profile of the lock actuator, and when the shoulder contacts the lock actuator, the lock actuator may be operable to rotate the lock about the lock axis between a first position and a second position. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above-mentioned features and advantages and other features and advantages of the present disclosure and their implementation will become more apparent and will be easily understood by referring to the following description of exemplary embodiments in conjunction with the accompanying drawings, in which:

[0027] Figure 1A is a front perspective view of a barrier having a handle with an interchangeable lock cylinder;

[0028] Figure 1B For Figure 1A The handle is removed Figure 1A A front perspective view of an interchangeable lock cylinder;

[0029] Figure 2A For assembly with lock cylinder Figure 1A A front perspective view of an interchangeable lock cylinder;

[0030] Figure 2B For Figure 2A Lock cylinder removed Figure 1A A front perspective view of an interchangeable lock cylinder;

[0031] Figure 3A For assembly with padlock Figure 1A A front perspective view of an interchangeable lock cylinder;

[0032] Figure 3B For Figure 3A The padlock is removed Figure 1A A front perspective view of an interchangeable lock cylinder;

[0033] Figure 4A For assembly with door handle Figure 1A A front perspective view of an interchangeable lock cylinder;

[0034] Figure 4B For Figure 4A Door handle removed Figure 1A A front perspective view of an interchangeable lock cylinder;

[0035] Figure 5 for Figure 1A A schematic diagram of the envelope of the lock cylinder body of the interchangeable lock cylinder;

[0036] Figure 6 for Figure 1A A three-dimensional view of the interchangeable lock cylinder and key;

[0037] Figure 7 for Figure 6 A stereoscopic view of a key;

[0038] Figure 8 for Figure 1A A three-dimensional view of the interchangeable lock cylinder;

[0039] Fig. 9 for Figure 1A An exploded perspective view of an interchangeable lock cylinder;

[0040] Fig.10 for Figure 1A An exploded perspective view of an interchangeable lock cylinder;

[0041] Fig.11 for Figure 1A An exploded perspective view of an interchangeable lock cylinder;

[0042] Fig. 12A for Figure 1A An exploded perspective view of a mortise insert of an interchangeable lock cylinder;

[0043] Fig. 12B for Fig. 12A An exploded perspective view of a ferrule insert;

[0044] Fig.13 For the first configuration Figure 1A A partial cross-sectional view of an interchangeable lock cylinder;

[0045] Fig.14 For the second configuration Figure 1A A partial cross-sectional view of an interchangeable lock cylinder;

[0046] Fig.15 For the third configuration Figure 1A A partial cross-sectional view of an interchangeable lock cylinder;

[0047] Fig.16 for Figure 1A Front elevation view of the interchangeable lock cylinder.

[0048] Corresponding reference numerals indicate corresponding parts throughout the several views.The exemplifications set out herein illustrate exemplary embodiments of the invention, and such exemplifications are not to be construed as limiting the scope of the invention in any way. DETAILED DESCRIPTION

[0049] For the purpose of promoting an understanding of the principles of the present disclosure, reference is now made to the embodiments illustrated in the accompanying drawings, which are described below. The embodiments disclosed herein are not intended to be exhaustive or to limit the disclosure to the precise forms disclosed in the following detailed description. Instead, the embodiments are selected and described so that others skilled in the art may utilize their teachings. Therefore, it is not intended to limit the scope of the present disclosure. Throughout the several views, corresponding reference numerals indicate corresponding parts.

[0050] The terms "couples," "coupled," "coupler," and variations thereof are intended to include both arrangements where two or more components are in direct physical contact and arrangements where two or more components are not in direct contact with each other (e.g., the components are "coupled" through at least a third component) but still cooperate or interact with each other.

[0051] In some cases in this specification and claims, numerical terms, such as first, second, third, and fourth, are used to refer to various components or features. Such use is not intended to indicate an order of components or features. Instead, the numerical terms are used to help the reader identify the referenced components or features and should not be narrowly interpreted as providing a specific order of components or features.

[0052] Figure 1A The barrier in the form of a door 10 is illustrated, which includes a handle 11 having a lock cylinder 100 and a retractable latch 14. In various embodiments, the retractable latch 14 retracts with actuation of the handle 11 in an upward direction 13 or a downward direction 15. The retractable latch 14 can be retracted by actuation of the handle 11 only when the handle 11 is in an unlocked configuration, which is controlled by the lock cylinder 100 in the unlocked state. The retractable latch 14 can be retracted by using a key 20 ( Figure 6 ) to actuate locking or unlocking of the lock core 100, as will be further described herein. In addition, the lock core 100 may be a small format interchangeable lock core ("SFIC"), thereby providing that the lock core 100 is configured to be, for example, by using a core retainer 119 (see Figure 5 ) has the added benefit of removal and replacement being performed in handle 11. Figure 1BThe lock cylinder 100 is depicted removed from the opening 12 of the handle 11. In embodiments, the lock cylinder 100 may be configured as a large format interchangeable core ("LFIC"), a Euro cylinder lock cylinder, or other suitable type of lock cylinder.

[0053] In addition to the handle 11, the lock cylinder 100 can be received in a corresponding opening in a plurality of different types of outer shells. Figure 2A and Figure 2B , the lock cylinder 100 is illustratively received in and removed from the opening of the lock cylinder 16. The lock cylinder 16 may be included in a mortise lock or other device. Figure 3A and Figure 3B , the lock cylinder 100 is illustratively received in and removed from the opening of the padlock 17. In the case of the padlock 17, the handle 18 is received in the padlock 17, and a locking device in the padlock 17 locks or unlocks the handle 18 to or from the padlock 17. Figure 4A and Figure 4B , the lock cylinder 100 is illustratively received in and removed from an opening in another exemplary door handle 19 .

[0054] Reference Figure 5 , the lock cylinder 100 includes a lock cylinder body 104 having an outer profile or envelope 105. In the illustrated embodiment, the lock cylinder body 104 includes: an upper portion 106 having a first cylindrical portion 108, the first cylindrical portion 108 having a first maximum lateral extent (d1); a lower portion 110 having a second cylindrical portion 112, the second cylindrical portion 112 having a second maximum lateral extent (d2); and a waist 114 having a third maximum lateral extent (d3). The third maximum lateral extent (d3) is less than the first maximum lateral extent (d1) and less than the second maximum lateral extent (d2). Exemplary interchangeable lock cylinders having a longitudinal shape that satisfies the relationship of the first maximum lateral extent (d1), the second maximum lateral extent (d2), and the third maximum lateral extent (d3) include SFIC, LFIC, and other suitable interchangeable lock cylinders. In an embodiment, the lock cylinder body 104 may have a longitudinal shape that does not satisfy the relationship of the first maximum lateral extent (d1), the second maximum lateral extent (d2), and the third maximum lateral extent (d3).

[0055] If you will refer to Figure 6 and Figures 8 to 11As further described, the lock core 100 may include a housing 116, a core sleeve 118, and a plug core 120. The housing 116 surrounds at least a portion of the core sleeve 118 and the plug core 120 and defines an 8-shaped profile, and the 8-shaped profile of the housing 116 is received in the corresponding 8-shaped profile of the panel 122. The housing 116 includes: an upper region 116A, which has a first cylindrical portion, the first cylindrical portion has a first maximum lateral range; a lower region 116B, which has a second cylindrical portion, the second cylindrical portion has a second maximum lateral range; and a waist 116C, which has a third maximum lateral range. In various embodiments, the third maximum lateral range is less than the first maximum lateral range and less than the second maximum lateral range. As shown, in various embodiments, the core sleeve 118 includes a core retainer 119, and the core retainer 119 can extend from the waist 116C of the housing 116. The 8-shaped profile is called SFIC. The size and shape of the housing 116 can also be designed to be compatible with LFIC and other known cores.

[0056] According to the present disclosure, the lock cylinder 100 is provided with a pin assembly (not shown) including a plurality of pins (not shown) and an auxiliary system for verifying the access rights of the key / key blank / key body 20. Figure 6 and Figure 7 It is shown illustratively in FIG. Figure 6 2 is a bottom perspective view of the lock cylinder 100 and the key 20. The key 20 is used to actuate the lock cylinder 100 from a locked state to an unlocked state, and vice versa, based on the insertion and actuation of the key 20 as further described herein. The key 20 includes a key handle 22 and a key bow 24. The key handle 22 includes an outer profile that is configured to engage with a profile of a keyway 102 of the lock cylinder 100 and actuate a pin assembly. The function of the pin assembly is such that when the outer profile of the key handle 22 is fully engaged within the keyway 102 of the lock cylinder 100, that is, when the key 20 is fully inserted into the keyway 102, a plurality of pins are positioned at the shear lines, partially allowing the lock cylinder 100 to be in an unlocked state. More specifically, with the appropriate key 20 inserted into the keyway 102, the pins no longer prevent the rotation of the insert 120 within the housing 116. In an embodiment, the first key has a profile that positions a plurality of pins to allow the ferrule 120 to rotate relative to the core sleeve 118 and maintain the position of the core sleeve 118 relative to the lock core body 104, thereby maintaining the lock core retainer 119 in an extended position relative to the lock core body 104, and the second key has a profile that positions a plurality of pins to connect the ferrule 120 to the core sleeve 118 and allow the combination of the ferrule 120 and the core sleeve 118 to rotate together relative to the lock core body 104 to retract the core retainer 119 relative to the lock core body 104, which allows the lock core 100 to be removed from a lock device (such as a handle 11) in which it is located.

[0057] like Figure 6and Figure 7 As illustrated, the key 20 includes a key shank 22 and a key bow 24. The key shank 22 includes a groove 26 and a shoulder 28. The key bow 24 is defined as a width extending generally transverse to the longitudinal axis A that is greater than a length of the key bow 24 extending along (nominally coincident with or nominally parallel to) the longitudinal axis A. The key shank 22 is defined as a width extending generally transverse to the longitudinal axis A that is less than a length 23 of the key shank 22 extending along (nominally coincident with or nominally parallel to) the longitudinal axis A. The width of the key shank 22 is generally uniform along the length 23 of the key shank 22. In addition, the key shank 22 includes at least two side surfaces (illustratively a right side surface 32 and a left side surface 34), a top surface, and a bottom surface 36. The right side surface 32 may be positioned opposite the left side surface 34, and the top surface may be positioned opposite the bottom surface 36.

[0058] like Figure 6 and Figure 7 As shown, an outer contour has been cut into the key 20 while a lower recess 26 has been retained in the key handle 22. The outer contour extends along the entire length 23 of the key handle 22, and the outer contour can be cut into the key 20 by various methods, including but not limited to milling, grinding and other applicable machining processes. The size and shape of the outer contour are designed to be compatible with the lock cylinder 100 so that the key 20 can be inserted into the lock cylinder 100 and the outer contour can engage with a pin assembly (not shown). The outer contour is machined in such a manner that the recess 26 and the shoulder 28 are not obstructed or altered by the outer contour. The recess 26 and the shoulder 28 are configured so that after the key 20 is inserted, the recess 26 can receive an element of the lock cylinder 100, such as the lock actuation assembly 132, without interfering with the full insertion of the key 20, and the shoulder 28 can serve as a driver for the lock actuation assembly 132 of the lock cylinder 100, as will be referred to herein. Fig. 9 and Fig.10 In various embodiments, the shoulder 28 is specifically defined by the proximal end of the wall defining the recess 26 in the key handle 22. In various embodiments, for example Figure 6 and Figure 7 In the exemplary embodiment of the present invention, each groove 26 and shoulder 28 has an arcuate or circular cross section. In other embodiments, the cross section 26 of the groove is triangular, rectangular or has other irregular shapes. The cross-sectional shape 26 of the groove can be selected so that it can engage with the corresponding part of the lock cylinder 100, as will be referred to in Fig. 9 and Fig.10 In other embodiments, the shoulder 28 may be a relative depression within the groove 26 rather than the proximal-most surface of the groove 26 .

[0059] The groove 26 has a length 27 along the key stem 22 that extends only a portion of the length 23 of the key stem 22, such that the length 27 of the groove 26 is less than the length 23 of the key stem 22. The length 27 of the groove 26 extends along (nominally coincident with or nominally parallel to) the longitudinal axis A of the key stem 22. For example, the length 27 has a value of 50% of the length 23 of the key stem 22. In various other embodiments, the length 27 has a value of 55%, 60%, 65%, 70%, or 75% of the length 23 of the key stem 22. In further embodiments, the length 27 is between 80% and 95% of the length 23. In some embodiments, the length 27 of the groove 26 has a value of 20%, 25%, or 30% of the length 23 of the key stem 22. The above percentages are non-limiting examples of dimensions of the length 27, and various other dimensions may be used for the length 27 of the groove 26. For example, the length 27 has a value between 10% and 90% of the length 27.

[0060] The groove 26 is formed by various methods, such as but not limited to three-dimensional printing, end milling or side milling. The groove 26 can be formed using a cutting tool configured to produce a nominal flat portion. For example, in various embodiments, the groove 26 is formed by engaging at least one side of the key handle 22 with a cutting tool (e.g., an end mill), which is oriented transversely to the longitudinal axis A of the key handle 22. The cutting tool engages at least one side of the key handle 22 and moves along the key handle 22 while maintaining engagement. In these embodiments, the cutting tool removes material from the key handle 22 at a point where it engages or contacts the key handle 22. In these embodiments, for example, in the case of using an end mill, a flat portion can be formed along the back surface of the groove 26. When the end mill moves along the longitudinal axis A, a nominal flat portion can be formed along the top and bottom surfaces of the groove 26, thereby generating an intersecting nominal flat portion defining the groove 26. In various embodiments, the cutting tool can be nominally oriented parallel to the longitudinal axis A. In addition, the shape of the groove 26 is determined by the shape of the end portion of the cutting tool engaged with the key handle 22. The cutting tool extends along the key shank 22 for a length that defines the length 27 of the groove 26. In this way, the length 27 of the groove 26 along the longitudinal axis A can be varied and customized to a desired length that will allow compatibility with the lock cylinder 100, and the shape of the cross-sectional groove 26 can be varied by varying the cutting tool.

[0061] Although the groove 26 is generally continuous over the length 27 of the groove 26, there may be pockets, stops, shoulders or indentations within the groove 26. The shape and length 27 of the groove 26 are made for proper engagement with the lock actuation assembly 132 of the lock cylinder 100, as will be described with reference to Fig. 9 and Fig.10 As further described. Although the shoulder 28 is at least Figure 6 and Figure 720 is shown as having a generally flat surface shape, but the shoulder 28 changes shape based on the formation method of the groove 26 and the shoulder 28. For example, the surface of the shoulder 28 is generally arcuate or curved. Although the shape or configuration of the shoulder 28 varies, the shoulder 28 must be configured to serve as a driver of the lock actuation assembly 132 of the lock cylinder 100 so that the lock actuation assembly 132 does not move relative to the key 20 once it contacts the shoulder 28, as will be referred to in Fig. 9 and Fig.10 Further described.

[0062] like Figure 6 and Figures 8 to 11 As shown, the lock cylinder 100 is elongated along the longitudinal axis L between the distal end 30 and the proximal end 35. The lock cylinder 100 includes a rear surface 31 at the distal end 30 and a front surface 33 at the proximal end 35. The lock cylinder 100 has a housing 116, a core sleeve 118, a core insert 120, a panel 122, and a core clip 124. The housing 116 includes a bottom surface having: a lock receiver 34 for receiving a lock (exemplified as an arc-shaped stopper of the lock cylinder 100, i.e., a pinion 126); and a plurality of openings 36 for receiving a pin assembly (not shown), which is ultimately received in a bible 121 (see FIG. 1 ) of the core sleeve 118. Fig. 9 ) corresponding holes, corresponding holes in the upper portion 106 of the lock cylinder body 104 (see Fig. 9 ) and a corresponding hole in the upper side of the ferrule 120. In the illustrated embodiment, two openings in the housing 116 define the lock receiver 34. In an embodiment, a single opening or passage can be used as a lock receiver for the lock 126. As previously described, the pin assembly is configured so that when the key 20 is fully engaged in the keyway 102, the pin is actuated to be positioned at the shear line, thereby allowing the ferrule 120 to rotate from the first position of the ferrule 120 to the second position within the housing 116. The core sleeve 118 may also include a lock receiver 38 ( Fig.10 and Figures 13 to 15 ), so that the lock 126 can extend through the lock receiver 38 of the core sleeve 118 and the lock receiver 34 of the housing 116. The mortise 120 is positioned within the housing 116 and can rotate about the longitudinal axis L relative to the housing 116 between a first position and a second position, i.e., between a locked position that prevents the handle 11 ( FIG. 1 ) from rotating to actuate the retractable latch 14 and an unlocked position that allows the handle 11 to rotate to actuate the retractable latch 14 to allow access through the door 10. In an embodiment, a locking member (not shown) of the handle 11 is operably coupled to an opening 123 on the rear end of the mortise 120. The panel 122 is positioned at the proximal end 35 of the lock cylinder 100 and is flush with the housing 116 and the mortise 120 of the lock cylinder 100.

[0063] Fig. 9 and Fig.10 An exploded view of the lock core 100 is depicted. The ferrule 120 includes a proximal end 120A and a distal end 120B. As shown, the ferrule 120 includes a keyway 102 and a ferrule insert 128. Although depicted as separate components in the illustrated embodiment, the ferrule insert 128 and the ferrule 120 can be integrally formed as a single structure. A lock channel 130 can be formed in the ferrule insert 128. In an embodiment in which the ferrule 120 and the ferrule insert 128 are integrally formed, the lock channel 130 can be formed in the ferrule 120. The lock channel 130 can receive the lock 126 and the lock actuation assembly 132. The lock actuation assembly 132 includes a rack 134 and a biasing element illustrated as a spring 136. Although described herein as a spring 136, the biasing element can include various other mechanisms for biasing the rack 134. The rack 134 includes a receiver for receiving one end of the biasing element, and the other end of the biasing element is received by the ferrule insert 128. In the illustrated embodiment, the receiver is a protrusion 137, and one end of the biasing element can be received by the protrusion 137, and the other end of the biasing element can be received by the ferrule insert 128, such as by a protrusion or a recess. In an embodiment, a recess can be used as a receiver, and one end of the biasing element can be received in the recess, and the other end of the biasing element can be received by the ferrule insert 128, such as by a protrusion or a recess. In addition, the spring 136 can be repositioned relative to the rack 134 so that when the rack 134 translates within the lock cylinder 100, the spring 136 is stretched rather than compressed, and thus still accumulates elastic restoring force. The spring 136 biases the lock actuation assembly 132 to a first locked position, in which a portion of the lock 126 is received in the lock receiver 34 of the housing 116 and the lock receiver 38 of the core sleeve 118, and the lock receiver 38 of the core sleeve 118 is aligned with the lock receiver 34 of the housing 116.

[0064] like Figures 13 to 15 As best shown, the lock 126 is an arcuate stop or pinion that meshes with the gear teeth of the rack 134. In an embodiment, a center plane X of the lock 126 can intersect the rack 134, which can result in improved meshing of the gear teeth of the rack 134 with the lock 126 and can reduce the size of the lock cylinder 100, which is an important design consideration for SFIC. The lock 126 includes a first end 126A, a second end 126B, and a bottom surface 126C extending between the first end 126A and the second end 126B. The bottom surface 126C is supported by a corresponding arcuate surface 138 of the insert 120. As shown in FIG. Fig.16 As shown, the center plane X of the lock 126 intersects the center of rotation of the ferrule 120. Among other advantages, this arrangement results in symmetry between the lock 126 and the ferrule 120, thereby preventing the ferrule 120 from being biased to rotate in one direction relative to another. Figures 13 to 15As discussed in detail, translational movement of the rack 134 in a direction parallel to the longitudinal axis L of the lock cylinder 100 can cause the lock 126 to rotate on the arcuate surface 138 of the lock cylinder 120 about a lock axis R extending perpendicular to or transverse to the longitudinal axis L of the lock cylinder 100. The arcuate surface 138 has a center of curvature, and the lock axis R can intersect the center of curvature of the arcuate surface 138. As shown, the lock axis R is positioned outside the envelope of the ferrule 120, outside the envelope of the control sleeve 118, and within the envelope of the housing 116. In an embodiment, the lock axis R is positioned outside each of the envelope of the ferrule 120, the envelope of the control sleeve 118, and the envelope of the housing 116. In an embodiment, the lock axis R is positioned outside each of the envelope of the ferrule 120, the envelope of the control sleeve 118, and the envelope of the housing 116. In an embodiment, the lock axis R is positioned outside the envelope of the ferrule 120, within the envelope of the control sleeve 118, and within the envelope of the housing 116. In an embodiment, the lock axis R intersects one of the envelopes of the ferrule 120, the control sleeve 118, and the housing 116.

[0065] The lock channel 130 is configured such that when the rack 134 is inserted, the lock channel 130 only allows the rack 134 to move along the longitudinal axis L, that is, coincident with or parallel to the longitudinal axis L, and inhibits the rack 134 from moving in a direction transverse to the longitudinal axis L. When the key 20 is inserted into the keyway 102, the shoulder 28 of the groove 26 contacts the rack 134, preventing the rack 134 from moving relative to the key 20, and allowing the rack 134 to translate within the lock channel 130 against the biasing force of the spring 136. In the illustrated embodiment, as shown in FIG. Fig. 12B and Figures 13 to 15 As best shown, rack 134 includes engagement features 135 , and shoulder 28 of recess 26 of key 20 contacts engagement features 135 of rack 134 to translate rack 134 within lock channel 130 against the bias of spring 136 and prevent rack 134 from moving relative to key 20 .

[0066] The proximal end 120A of the ferrule 120 is embedded from the rear side of the housing 116 to contact the panel 122, so that the panel 122 is coupled to the proximal end 120A of the ferrule 120 and is at least partially positioned around it. The panel 122 includes a figure 8 shape, having an upper region 122A and a lower region 122B. The upper region 122A includes a first opening 42, and the lower region 122B has a second opening 44, so that the ferrule 120 is received within the second opening 44 of the panel 122. In an embodiment, the panel 122 additionally includes a countersunk hole so that the panel 122 and the ferrule 120 are flush.

[0067] The core sleeve 118 is inserted onto the distal end 120B of the ferrule 120 until it surrounds the ferrule 120 and is at least partially received by the panel 122. The core sleeve 118 includes a lock receiver 38 and is positioned so that the lock receiver 38 is aligned with the lock channel 130 of the ferrule 120 so that the lock 126 can extend out of the lock channel 130 and into the lock receiver 38 of the core sleeve 118. The core sleeve 118 also includes a plurality of openings 40 for receiving a plurality of pins of the pin assembly. In an embodiment, the core sleeve 118 and the plurality of pins are received in the housing 116 and the core sleeve 118 before the ferrule 120 is inserted.

[0068] The housing 116 is embedded over the core sleeve 118 and the ferrule 120 until the housing 116 abuts the panel 122. As described above, the outer perimeter of the housing 116 includes a figure-eight shape that corresponds to the shape of the panel 122. The lower region 116B of the housing 116 includes a passage, illustratively an opening 46, for receiving and surrounding the ferrule 120. The upper region 116A of the housing 116 abuts the upper region 122A of the panel 122, and the lower region 116B abuts the lower region 122B of the panel 122. In these embodiments, the ferrule 120 and the housing 116 are both flush with the panel 122. As previously described, the housing 116 includes a plurality of openings 36 for receiving the pins of the pin assembly and a lock receiver 34 for receiving the lock 126 of the lock actuation assembly 132, as will be further described herein. When positioned over the core sleeve 118 and the ferrule 120, the lock receiver 34 of the housing 116 is aligned with the lock channel 130 of the ferrule 120 and the lock receiver 38 of the core sleeve 118. The plurality of openings 36 of the housing 116 are aligned with the plurality of openings 40 of the core sleeve 118. Towards the distal end 30 of the lock core 100, the core clip 124 is received within the circumferential groove 140 of the ferrule 120 and couples the ferrule 120 and the core sleeve 118 to the housing 116.

[0069] This article will refer to Figures 13 to 15 The operation of the lock cylinder 100 when used with the key 20 to unlock the handle 11 ( FIG. 1 ) of the door 10 is described. Figures 13 to 15 For purposes of this disclosure, it is assumed that the plurality of pins of the pin assembly are positioned within the lock cylinder 100 such that they allow the mortise 120 to rotate within the housing 116. Thus, Figures 13 to 15 The description describes the operation of the lock 126 and the lock actuation assembly 132 for verifying that the key 20 has access rights to unlock the door 10 , independent of the ability of the key 20 to properly position the pin to allow relative rotation of the mortise 120 within the housing 116 .

[0070] Fig.13 1 is a cross-sectional view of the lock core 100. As shown, one end of the spring 136 is received on the protrusion 137 of the rack 134, and the other end of the spring 136 is received by the insert 128 of the insert 120. Figures 9 to 11 As discussed, the rack 134 is only allowed to move along the longitudinal axis L of the lock cylinder 100, i.e., overlapping or parallel to the longitudinal axis L of the lock cylinder 100. Throughout the translational motion range of the rack 134, the spring 136 is compressed between the rack 134 and the insert 128 of the insert 120. Fig.13 As shown, when the spring 136 biases the rack 134 to the proximal end of the lock channel 130, the first end 126A of the lock 126 extends into the lock receiver 38 of the core sleeve 118 and the lock receiver 34 of the housing 116. This position, the first locked position, defines one end of the range of motion of the lock 126, wherein the first end 126A blocks any rotation of the ferrule 120 relative to the housing 116. In this position, the lock 126 is positioned closer to the proximal side relative to the front surface 33 and the proximal end 35 of the lock core 100 than any other position along the range of motion. Through this range of motion, the lock 126 is supported by and rotates on the arcuate surface 138 of the ferrule insert 128 of the ferrule 120.

[0071] Reference Fig.13 and Fig.14 ,like Fig.14 The illustrated rack 134 is in a space located from the proximal end of the lock channel 130, and therefore, the spring 136 has been compressed against the ferrule insert 128 of the ferrule 120. Due to the distal translational movement of the rack 134 relative to the proximal end of the lock channel 130, the lock 126 has been rotated about the lock axis R to an intermediate position within the range of the lock 126. More specifically, the gear teeth of the rack 134 are engaged with the lock 126 (illustratively an arcuate stopper or pinion), and the translational movement of the rack 134 causes the lock 126 to rotate about the lock axis R. In this intermediate position, i.e., the unlocked position, the first end 126A and the second end 126B of the lock 126 do not extend through the lock receiver 38 of the core sleeve 118 or the lock receiver 34 of the housing 116, and the ferrule 120 is able to rotate relative to the housing 116.

[0072] As described above, the lock 126 rotates about a lock axis R that intersects the center of curvature of the arcuate surface 138. In the illustrated embodiment, the lock axis R is positioned outside the housing of the ferrule 120. For example, the lock axis R can be positioned within the envelope of the housing 116. In an embodiment, the lock axis R can be positioned within the envelope of the core sleeve 118, or alternatively, further positioned outside the envelope of the housing 116. Positioning the center of rotation of the lock 126 outside the ferrule 120 can allow for greater control over the movement of the lock 126 and the lock actuation assembly 132.

[0073] Fig.15 The rack 134 is illustrated as being positioned further from the proximal end of the lock channel 130 along the longitudinal axis L (i.e., coincident with or parallel to the longitudinal axis L). Fig.15 In Fig.14 Due to this further translational movement of rack 134 within lock channel 130, lock 126 is further rotated about lock axis R and Fig.15 The proximal end of the lock channel 130 is positioned relative to Fig.14 The lock 126 is shown positioned further away. In this position, the rack 134 further has a compression spring 136 that abuts against the ferrule insert 128 of the ferrule 120. In addition, in this position, i.e., the second locked position, the second end 126B of the lock 126 extends into the lock receiver 38 of the sleeve 118 and the lock receiver 34 of the housing 116. Therefore, the ferrule 120 is blocked from rotating relative to the housing 116. Fig.15 The positioning illustrated in defines a second range or second end of the range of motion of the lock 126 , wherein the lock 126 is positioned farther relative to the proximal end 35 of the lock cylinder 100 than any other position along the range of motion.

[0074] Figures 13 to 15 Thus, the range of motion of the elements of the lock 126 and the lock actuation assembly 132 is illustrated as the components move from one end of the range of motion to the opposite end of the range of motion. Figures 13 to 15 The actuation of the movement is further described.

[0075] like Figures 13 to 15 As shown in dashed lines in FIG. 1 , the key 20 may be inserted into the keyway 102 of the lock cylinder 100 to actuate the lock actuation assembly 132 and, therefore, the lock 126 through the above-described range of motion. Figure 6 and Figure 7 As described above, the key handle 22 will only be authenticated if the groove 26 and the shoulder 28 include features that properly engage with and sufficiently actuate the engagement features 135 of the rack 134. Figures 13 to 15 As shown, the engagement feature 135 of the rack 134 can extend into a portion of the key slot 102, and when inserted, the groove 26 of the key handle 22 must have the correct cross-sectional shape and size to receive the engagement feature 135 to properly actuate the rack 134. Otherwise, for example, the rack 134 can be compressed against the spring 136 to actuate the lock 126 to the second locked position, as will be described with reference to Fig.15 As further described, alternatively, the rack 134 may not be sufficiently compressed against the spring 136 to rotate the lock 126 from the first locked position to the unlocked position. Additionally, the key 20 may not be properly aligned with the bolt assembly, thereby inhibiting the ferrule 120 from rotating relative to the housing 116. For example, if Fig.10 and Fig. 12BAs shown, the engagement feature 135 has a generally arcuate or curved cross-section. The groove 26 has a cross-section capable of receiving a portion of the engagement feature 135, and when the key 20 is inserted into the keyway 102, the rack 134 can actuate the lock 126 to the unlocked position, as will be described with reference to FIG. Fig.14 Various other cross-sectional shapes may be combined with both the groove 26 and the engagement feature 135 to allow for engagement.

[0076] Additionally, the groove 26 requires a certain length along the key handle 22 in order to fully engage the rack 134 for actuation of the lock 126. Once the rack 134 is received by the groove 26 and abuts the shoulder 28, the key 20 actuates the rack 134 forward, thereby rotating the lock 126 on the arcuate surface 138 and about the lock axis R. The rack 134 is actuated a predetermined and limited amount to allow the lock 126 to be in the unlocked position, as will be described with reference to FIG. Fig.14 As further described. Thus, the length 27 of the groove 26 must be configured to actuate the rack 134 a predetermined amount to place the lock 126 in the unlocked position. In other words, if the length 27 of the groove 26 is too large, then even after the key 20 is fully inserted, the shoulder 28 will not engage the engagement feature 135 of the rack 134, and the rack 134 will not be actuated. However, if the length 27 of the groove 26 is too small, the insertion of the key 20 engages the engagement feature 135 of the rack 134 and actuates the rack 134 too far within the lock channel 130 and, therefore, leaves the unlocked position and enters the second locked position. This document will refer to Figures 13 to 15 These examples are described further.

[0077] Refer again Fig.13 , the lock 126 is illustrated in a first locked position, wherein the key 20 has not yet actuated the lock actuation assembly 132. The spring 136 biases the lock actuation assembly 132 so that the first end 126A of the lock 126 extends into the lock receiver 38 of the core sleeve 118 and the lock receiver 34 of the housing 116. With the first end 126A of the lock 126 extending through the lock receiver 34 of the housing 116, the first end 126A of the lock 126 blocks rotation of the mortise 120 relative to the housing 116, such that even if the pin is at the correct shear line, the key 20 is not operable to actuate the lock. In this way, the lock 126 is in the first locked position and the lock cylinder 100 is in a locked state.

[0078] Still refer to Fig.13 , when the key 20 is inserted into the keyway 102, the shoulder 28 of the key shank 22 has not yet engaged with the engagement feature 135 of the rack 134. This may be the result of the key 20 not being fully inserted into the keyway 102 and / or the length 27 of the groove 26 being too large or otherwise improperly shaped to engage the engagement feature 135 of the rack 134. For example, as previously described with reference to Figure 6 and Figure 7 As described, the groove 26 and therefore the shoulder 28 include various cross-sectional shapes to engage the rack 134. Fig.13 As shown, the groove 26 includes a cross-section capable of receiving the rack 134. Fig.13 In the positioning of the key 20, the key 20 may not be fully inserted into the lock cylinder 100, or the length 27 of the groove 26 is too large and does not allow engagement between the shoulder 28 and the engagement feature 135 of the rack 134. In this way, the shoulder 28 will not actuate the rack 134 to rotate the lock 126 on the arc surface 138 and about the lock axis R. In this configuration, when the key handle 22 has an outer profile corresponding to the pin bolt assembly so that it actuates the pin of the pin bolt assembly to the shear line, the first end 126A of the lock 120 extends into the lock receiver 38 of the core sleeve 118 and the lock receiver 34 of the housing 116 and blocks the pin 126 from rotating within the housing 116, so the pin 120 will be inhibited from rotating to unlock the handle 11.

[0079] Fig.14 The lock 126 is illustrated in an unlocked position, and thus the lock cylinder 100 is illustrated in an unlocked position. The lock 126 can be sequentially moved from a first locked position to an unlocked position. Movement of the lock 126 from the first locked position to the unlocked position is accomplished by inserting the key 20, shown in phantom, into the keyway 102 to actuate the lock actuation assembly 132. As previously described, the size and shape of the groove 26 and shoulder 28 of the key 20 must be appropriately actuated to actuate the rack 134 of the lock actuation assembly 132. Fig.14 As shown, the groove 26 and shoulder 28 have a cross-section capable of receiving the engagement feature 135 of the rack 134 within the groove 26, and have a length 27 along the key handle 22 that allows for proper engagement with the rack 134 once fully inserted. In this way, during insertion of the key 20, the shoulder 28 of the groove 26 engages the engagement feature 135 and actuates the rack 134 distally in a direction along the longitudinal axis L and relative to the proximal end 35 of the lock cylinder 100 against the biasing force of the spring 136. When the rack 134 is actuated to overcome the biasing force of the spring 136, the lock 126 rotates about the lock axis R so that the first end 126A no longer extends through the lock receiver 38 of the core sleeve 118 and the lock receiver 34 of the housing 116. As the rack 126 translates along the longitudinal axis L of the lock cylinder 100 , the lock 134 rotates about the lock axis R due to the meshing of the gear teeth of the rack 134 with the lock 126 (illustratively an arcuate stop or pinion).

[0080] In order to achieve lock 126 from Fig.14In moving from the first locked position to the unlocked position shown, the recess 26 is sized and shaped so that the shoulder 28 of the key 20 actuates the lock actuation assembly 132 only a sufficient distance to cause the lock 126 to rotate until the first end 126A of the lock 126 no longer extends through the lock receiver 38 of the core sleeve 118 and the lock receiver 34 of the housing 116, and the second end 126B of the lock 126 no longer extends through the lock receiver 38 of the core sleeve 118 and the lock receiver 34 of the housing 116. Fig.13 As shown, this allows the lock receiver 34 of the housing 116 to be uninterrupted by the lock 126. As previously described, if the key handle 22 includes an outer profile that effectively engages the bolt assembly, the rotation of the key bow 24 causes the mortise 120 within the lock cylinder 100 to rotate relative to the housing 116. In this position, the handle 11 is unlocked and the door 10 can be opened. In various embodiments, the unlocked position is achieved by an end position of the key 20, so that the key 20 can no longer be inserted further into the keyway 102 of the mortise 120, and can only be retracted from the keyway 102.

[0081] In an embodiment, the lock 126 can be sequentially moved from the unlocked position to the second locked position, such as Fig.15 The second locked position is different from the first locked position, but similarly inhibits rotation of the mortise 120 relative to the housing 116 within the lock cylinder 100. Movement of the lock 126 from the unlocked position to the second locked position is the result of continued actuation of the lock actuation assembly 132, wherein the rack 134 is continuously actuated in a distal direction relative to the proximal end 35 of the lock cylinder 100. Continued actuation of the lock actuation assembly 132 may be the result of the recess 26 being too small along the length 27 of the key handle 22, such that the lock 126 is not rotated when the lock 126 is already positioned in the unlocked position. Fig.14 After the unlocked position, the rack 134 is continuously actuated. In this position, if the key bow 24 is rotated, the rotation of the mortise 120 relative to the housing 116 is blocked because the second end 126B of the lock 126 extends through the lock receiver 38 of the core sleeve 118 and the lock receiver 34 of the housing 116. In this way, the lock 126 is in the second locked position and the lock cylinder 100 is in a locked state.

[0082] like Figures 13 to 15 As shown, movement of the lock 126 from the first locked position to the unlocked position, and subsequently from the unlocked position to the second locked position defines sequential actuation and rotation of the lock 126 about the lock axis R from one end of the range of motion of the lock 126 to a second end of the range of motion of the lock 126. The first locked position corresponds to a proximal-most position of the lock 126 relative to the proximal end 35 of the lock cylinder 100, and the second locked position corresponds to a distal-most position of the lock 126 relative to the proximal end 35 of the lock cylinder 100.

[0083] Although the present invention has been described as having an exemplary design, the present invention may be further modified within the spirit and scope of the present disclosure. Therefore, this application is intended to cover any variation, adaptation or modification of the present invention using its general principles. In addition, this application is intended to cover such deviations from the present disclosure in known or customary practice in the field to which the present invention belongs.

Claims

1. A lock core for use with a key, the lock core comprising: shell; a ferrule positioned within the housing and rotatable relative to the housing about a longitudinal axis of the ferrule between a first ferrule position and a second ferrule position, the ferrule including a keyway adapted to receive the key; as well as A lock, the lock can rotate around a lock axis between a first position and a second position, in the first position, the rotation of the ferrule is restricted, in the second position, the ferrule can rotate from the first ferrule position to the second ferrule position, the lock can rotate within the envelope of the housing, and the lock axis is positioned outside the envelope of the ferrule.

2. The lock core according to claim 1, wherein: The housing includes a passageway for receiving the mortise, and wherein a lock axis of the lock is positioned within the housing.

3. The lock core according to claim 1, wherein: The housing includes an upper region having a first cylindrical portion having a first maximum lateral extent, a lower region having a second cylindrical portion having a second maximum lateral extent, and a waist having a third maximum lateral extent that is smaller than the first maximum lateral extent and smaller than the second maximum lateral extent.

4. The lock cylinder according to claim 1, wherein: A lock axis of the lock is inclined relative to a longitudinal axis of the mortise.

5. The lock cylinder according to claim 1, wherein: The central plane of the lock intersects the longitudinal axis of the mortise.

6. The lock cylinder according to claim 1, wherein: The insert includes a lock channel, and the lock is located in the lock channel.

7. The lock cylinder according to claim 1, wherein: The lock includes a first end and a second end, and the housing includes at least one lock receiver, and when the lock is in the second position, the first and second ends of the lock are spaced apart from the at least one lock receiver.

8. The lock cylinder according to claim 1, wherein: The lock is rotatable from the second position to a third position, in which the rotation of the ferrule is restricted.

9. The lock cylinder according to claim 8, wherein: The lock includes a first end and a second end, and the housing includes at least one lock receiver, and when the lock is in the first position, the first end of the lock is received in the at least one lock receiver, and when the lock is in the third position, the second end of the lock is received in the at least one lock receiver.

10. The lock cylinder according to claim 8, wherein: The lock cylinder further includes a front face, and when the lock is in the first position, the lock is in a proximal-most position relative to the front face, and when the lock is in the third position, the lock is in a distal-most position relative to the front face.

11. The lock cylinder according to claim 1, wherein: The insert core comprises an arcuate surface having a center of curvature, and a lock axis of the lock intersects the center of curvature.

12. The lock cylinder according to claim 11, wherein: The lock includes an arcuate stopper, and the arcuate stopper is supported by the arcuate surface and rotates on the arcuate surface.

13. The lock core according to claim 6 further includes a lock actuator, which is positioned in the lock channel of the insert, and the lock actuator includes a rack and a spring longitudinally aligned with the rack, the rack includes a receiver, one end of the spring is received by the receiver, and the other end of the spring is received by the insert, and the spring provides a biasing force to bias the lock to the first position.

14. The lock cylinder according to claim 13, wherein: A center plane of the lock intersects the rack.

15. The lock cylinder according to claim 13, wherein: The lock actuator translates within the ferrule in a direction parallel to a longitudinal axis of the ferrule.

16. The lock cylinder according to claim 15, wherein: Translational movement of the lock actuator within the mortise causes the lock to rotate about the lock axis.

17. The lock cylinder according to claim 15, wherein: The rack further includes gear teeth, and the lock includes a pinion that meshes with the gear teeth of the rack such that translation of the lock actuator causes the lock to rotate about the lock axis.

18. The lock cylinder according to claim 16, wherein: The lock rotates from the first position to the second position against the biasing force of the spring.

19. The lock cylinder according to claim 1, wherein: In the first position, rotation of the ferrule toward the second ferrule position is restricted.

20. A lock core for use with a key, the lock core comprising: shell; a ferrule positioned within the housing and rotatable relative to the housing about a longitudinal axis of the ferrule between a first ferrule position and a second ferrule position, the ferrule including a keyway adapted to receive the key; a blocking member movable between a first position for limiting the rotation of the ferrule, a second position for allowing the rotation of the ferrule, and a third position for limiting the rotation of the ferrule; as well as A gear assembly is positioned within the insert and configured to cause the blocking member to move between the first position, the second position, and the third position.

21. A key for use with a lock core, the lock core comprising a housing, a lock actuator, a mortise, and a lock, the mortise being positioned within the housing and being rotatable relative to the housing about a longitudinal axis of the mortise between a first mortise position and a second mortise position, the mortise comprising a keyway adapted to receive the key, the lock being rotatable about a lock axis between a first position and a second position, in the first position, the mortise being restricted from rotation, in the second position, the mortise being rotatable from the first mortise position to the second mortise position, the lock being rotatable within an envelope of the housing, and the lock axis being positioned outside the envelope of the mortise, the key comprising: Key bow; and A key handle comprising a groove along at least a portion of a side of the key handle, the groove defining a length terminating in a shoulder, the shoulder comprising a profile matching a profile of the lock actuator, and the lock actuator being operable to rotate the lock about the lock axis between the first position and the second position when the shoulder contacts the lock actuator.

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