Patent Application
20220081932
The present disclosure generally relates to handlesets, and more particularly but not exclusively relates to systems and methods for selection and/or adjustment of the handing of a lever handle.
Handlesets including lever handles typically provide a mechanism by which the handing of the lever can be selected or adjusted, often between right-handed and left-handed orientations. Many current approaches to lever handing adjustment suffer from drawbacks and limitations. For example, certain existing handlesets require a specialized tool for handing selection. Should the tool be lost or thrown away, it may be difficult or impossible to adjust the lever handing. Additionally, certain existing systems require that the handle be removed from the handleset and reinstalled in the new orientation, a process that can be difficult and/or time-consuming. For these reasons among others, there remains a need for further improvements in this technological field.
An exemplary handleset includes a housing, a spring cage assembly, a spindle, and a lever handle. The spring cage assembly includes a spring cage rotatably mounted in the housing, and a bias mechanism biasing the spring cage toward a home position. The spindle extends along a longitudinal axis, and is longitudinally movable between an engaged position in which the spindle is rotationally coupled with the spring cage and a disengaged position in which the spindle is rotationally decoupled from the spring cage. The lever handle is rotationally coupled with the spindle, and the spindle is slidable relative to the lever handle between the engaged position and the disengaged position. Further embodiments, forms, features, and aspects of the present application shall become apparent from the description and figures provided herewith.
Although the concepts of the present disclosure are susceptible to various modifications and alternative forms, specific embodiments have been shown by way of example in the drawings and will be described herein in detail. It should be understood, however, that there is no intent to limit the concepts of the present disclosure to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives consistent with the present disclosure and the appended claims.
References in the specification to “one embodiment,” “an embodiment,” “an illustrative embodiment,” etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may or may not necessarily include that particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. It should further be appreciated that although reference to a “preferred” component or feature may indicate the desirability of a particular component or feature with respect to an embodiment, the disclosure is not so limiting with respect to other embodiments, which may omit such a component or feature. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to implement such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
As used herein, the terms “longitudinal,” “lateral,” and “transverse” are used to denote motion or spacing along three mutually perpendicular axes, wherein each of the axes defines two opposite directions. In the coordinate system illustrated in
Furthermore, motion or spacing along a direction defined by one of the axes need not preclude motion or spacing along a direction defined by another of the axes. For example, elements that are described as being “laterally offset” from one another may also be offset in the longitudinal and/or transverse directions, or may be aligned in the longitudinal and/or transverse directions. The terms are therefore not to be construed as limiting the scope of the subject matter described herein to any particular arrangement unless specified to the contrary.
Additionally, it should be appreciated that items included in a list in the form of “at least one of A, B, and C” can mean (A); (B); (C); (A and B); (B and C); (A and C); or (A, B, and C). Similarly, items listed in the form of “at least one of A, B, or C” can mean (A); (B); (C); (A and B); (B and C); (A and C); or (A, B, and C). Items listed in the form of “A, B, and/or C” can also mean (A); (B); (C); (A and B); (B and C); (A and C); or (A, B, and C). Further, with respect to the claims, the use of words and phrases such as “a,” “an,” “at least one,” and/or “at least one portion” should not be interpreted so as to be limiting to only one such element unless specifically stated to the contrary, and the use of phrases such as “at least a portion” and/or “a portion” should be interpreted as encompassing both embodiments including only a portion of such element and embodiments including the entirety of such element unless specifically stated to the contrary.
In the drawings, some structural or method features may be shown in certain specific arrangements and/or orderings. However, it should be appreciated that such specific arrangements and/or orderings may not necessarily be required. Rather, in some embodiments, such features may be arranged in a different manner and/or order than shown in the illustrative figures unless indicated to the contrary. Additionally, the inclusion of a structural or method feature in a particular figure is not meant to imply that such feature is required in all embodiments and, in some embodiments, may be omitted or may be combined with other features.
With reference to
As described in further detail below, the lever handle 120 generally includes a shank 122 that extends along the longitudinal axis 102 and a lever portion 124 that extends from the shank 122 in a direction transverse to the longitudinal axis 102. In the configuration illustrated in
With additional reference to
The illustrated latch mechanism 80 generally includes a housing 82, a latchbolt 84 movably mounted in the housing 82, and a retractor 86 movably mounted in the housing 82 and engaged with the latchbolt 84. The retractor 86 is configured for connection with the actuation assembly 150, for example via a drive spindle 88, and is configured to retract the latchbolt 84 when rotated from a home position. As described herein, such rotation of the retractor 86 may selectively be transmitted from the handle 120 by the actuation assembly 150.
The housing 110 generally includes a backplate 112 and an escutcheon 114 mounted to the backplate 112 such that the housing 110 defines a chamber in which various internal components of the handleset 100 are positioned. The backplate 112 includes an opening 113 through which the actuation assembly 150 may be connected to the latch mechanism 80, for example via a drive spindle 88 that extends through the opening 113. As described herein, the backplate opening 113 may also facilitate adjustment of the handleset 100 between a plurality of handing orientations including at least a first handing orientation and a second handing orientation. The escutcheon 114 includes an opening 116 that is surrounded by an annular flange 117, which aids in the mounting of the lever handle 120 to the housing 110 as described herein. Positioned near the opening 116 on a distal side of the escutcheon 114 is a generally circular recess 118 including one or more projections 119. As described herein, the projection(s) 119 provide anchor points for a bias mechanism 148 of the spring cage assembly 140 to aid the spring cage assembly 140 in exerting a biasing force urging the lever handle 120 toward a home position corresponding to the selected orientation.
The lever handle 120 generally includes the shank 122, which extends along the longitudinal axis 102, and the lever portion 124, which extends from the shank 122 in a direction transverse to the longitudinal axis 102. The illustrated shank 122 includes a cavity 123 in which a proximal end portion 131 of the spindle 130 is slidably received, and a bias element such as a spring 129 is seated in the cavity 123 between the spindle 130 and an end wall of the cavity 123 such that the spring 129 longitudinally biases the spindle 130 in the distal direction. In the illustrated form, the spring 129 is provided as a compression spring. It is also contemplated that the spring 129 may be provided as another form of biasing member, such as a torsion spring, a leaf spring, an extension spring, one or more magnets, and/or an elastic member.
With additional reference to
The distal end portion 133 generally includes a proximal or first engagement section 134 configured for engagement with a spring cage 142 of the spring cage assembly 140, a distal or second engagement section 135 configured for engagement with an actuator 152 of the actuation assembly 150, and an intermediate disengagement section 136 positioned between the first engagement section 134 and the second engagement section 135. Each of the proximal end portion 131, the first engagement section 134, and the second engagement section 135 is configured for sliding engagement and rotational coupling with a corresponding component, and has a corresponding and respective non-circular cross-section that facilitates such slidably engagement and rotational coupling. In the illustrated form, each of the proximal end portion 131, the first engagement section 134, and the second engagement section 135 has a substantially square geometry. It is also contemplated that one or more of the proximal end portion 131, the first engagement section 134, and the second engagement section 135 may have a different cross-sectional geometry, such as that of a hexagon or another polygon. The example disengagement section 136 is smaller in cross-section than each of the engagement sections 134, 135, and in the illustrated form has a circular cross-section. It is also contemplated that the disengagement section 136 may have a different cross-sectional geometry.
With additional reference to
As noted above, the spring cage opening 143 is configured to slidably receive the first engagement section 134 of the spindle 130. The spring cage opening 143 and the first engagement section 134 are also sized and shaped such that the spindle 130 is rotationally coupled with the spring cage 142 when the first engagement section 134 is received in the spring cage opening 143. In the illustrated form, each of the first engagement section 134 and the spring cage opening 143 has a square cross-sectional geometry. It is also contemplated that other cross-sectional geometries may be utilized, including without limitation other polygonal cross-sectional geometries.
The actuation assembly 150 is mounted in the housing 110, and generally includes a first actuator 152, which is another form of rotatable component that may be selectively coupled with the spindle 130. The actuation assembly 150 may further include a case 151 in which the first actuator 152 is rotatably seated, a second actuator 154 rotatably mounted in the case 151, and a clutch mechanism 156 operable to selectively rotationally couple the first actuator 152 with the second actuator 154. The first actuator 152 includes an opening 153 operable to slidably receive the second or distal engagement section 135 of the spindle 130 for rotational coupling with the spindle 130. The second actuator 154 is positioned distally of the first actuator 152, and is selectively rotatable relative to the first actuator 152. The second actuator 154 includes an opening 155 configured for engagement with the latch mechanism 80 (e.g., via a drive spindle 88 inserted into the opening 155) such that rotation of the second actuator 154 is operable to rotate the retractor 86 to thereby retract the latchbolt 84.
As noted above, the illustrated clutch mechanism 156 is operable to selectively rotationally couple the first actuator 152 with the second actuator 154. When so coupled, rotation of the first actuator 152 causes a corresponding rotation of the second actuator 154 to actuate the latch mechanism 80. The clutch mechanism 156 may be in communication with the credential reader 106 and/or a controller of the handleset 100 such that the clutch mechanism 156 selectively couples the actuators 152, 154 when a valid credential is presented to the credential reader 106 to thereby unlock the handleset 100. While the illustrated actuation assembly 150 includes a second actuator 154 and a clutch mechanism 156 operable to selectively rotationally couple the first actuator 152 with the second actuator 154 to enable the spindle 130 to actuate the latch mechanism 80, it is also contemplated that the second actuator 154 and the clutch mechanism 156 may be omitted, for example in embodiments in which the first actuator 152 is rotationally coupled with the drive spindle 88 for actuation of the latch mechanism 80.
As indicated above, the first actuator opening 153 is configured to slidably receive the second engagement section 135 of the spindle 130. The first actuator opening 153 and the second engagement section 135 are also sized and shaped such that the spindle 130 is rotationally coupled with the first actuator 152 when the second engagement section 135 is received in the opening 153. In the illustrated form, each of the second engagement section 135 and the first actuator opening 153 has a square cross-sectional geometry. It is also contemplated that other cross-sectional geometries may be utilized, including without limitation other polygonal cross-sectional geometries.
With additional reference to
With additional reference to
With additional reference to
Like the spring cage 142, the first actuator 152 is also rotationally decoupled from the spindle 130 when the spindle 130 is in the disengaged position. More particularly, the second engagement section 135 is removed from the first actuator opening 153 such that the second engagement section 135 no longer couples the spindle 130 with the first actuator 152. Various dimensions of the spindle 130, such as the position of the collar 132, may be selected such that abutment of the collar 132 with the shank 122 prevents the second engagement section 135 from entering the spring cage opening 143 when the spindle 130 is in the disengaged position.
In the illustrated form, the handleset 100 is provided as an outside handleset configured for mounting to the exterior or outer side of a door. It is also contemplated that the handleset 100 may be provided as an inside handleset configured for mounting to the interior or inner side of a door. In such forms, various components of the illustrated handleset (e.g., the lock cylinder 104 the credential reader 106, and/or certain components of the actuation assembly 150 such as the second actuator 154 and the clutch mechanism 156) may be omitted. Moreover, while the illustrated handleset 100 is configured as a lockable handleset in which the handleset 100 is operable to selectively prevent the lever handle 120 from actuating a latchbolt mechanism 80, it is also contemplated that the handleset 100 may be provided as a passage handleset in which the lever handle 120 is always operable to actuate the latchbolt mechanism 80. Various components of the handleset 100 (e.g., the lock cylinder 104 the credential reader 106, and/or certain components of the actuation assembly 150 such as the second actuator 154 and the clutch mechanism 156) may likewise be omitted in such embodiments.
With additional reference to
The process 200 generally involves changing the handing of a handleset comprising a housing, a rotatable component rotatably mounted in the housing, a lever handle rotatably mounted on a front side of the handleset, and a spindle slidably coupled to the lever handle for movement between an engaged position and a disengaged position. For example, the process 200 may be performed with the handleset 100, which generally includes a housing 110, at least one rotatable component (e.g., the spring cage 142 and/or the first actuator 152) rotatably mounted in the housing 110, a lever handle 120 rotatably mounted on a front side 109 of the handleset 100, and a spindle 130 slidably coupled to the lever handle 120 for movement between an engaged position (
At the beginning of the process 200, the lever handle 120 may be in a first orientation, such as the right-handed orientation 121 illustrated in
The process 200 may include block 210, which generally involves biasing the spindle toward an engaged position in which the spindle rotationally couples the lever handle with the rotatable component. Block 210 may, for example, be performed using a bias element such as the compression spring 129 to bias the spindle 130 into engagement with a rotatable component in the form of the spring cage 142 and/or a rotatable component in the form of the first actuator 152. It is also contemplated that block 210 may involve another form of bias element, such as an extension spring, a torsion spring, a pair of magnets, and/or an elastic element. It is further contemplated that the spindle 130 may not necessarily be biased to the engaged position, in which case block 210 may be omitted from the process 200. In the illustrated form, the spindle 130 rotationally couples the lever handle 120 with each of two rotatable components (e.g., the spring cage 142 and the first actuator 152) when in the engaged position. It is also contemplated that the spindle 130 may rotationally couple the lever handle 120 with a single rotatable component when the spindle 130 is in the engaged position. For example, the spring cage 142 and the actuator 152 may be combined into a single rotatable component, or one of the spring cage 142 or the actuator 152 may not necessarily be present in certain embodiments.
The process 200 may include block 220, which generally involves moving the spindle against the biasing to a disengaged position in which the lever handle and the rotatable component are rotationally decoupled. As one example, block 220 may involve inserting a tool 90 from the rear side 108 of the handleset 100. The tool 90 may, for example, be inserted through the backplate opening 113, the second actuator opening 155, and the first actuator opening 153 until the tool 90 engages the distal end of the spindle 130. The tool 90 may then be urged proximally to move the spindle 130 proximally along the longitudinal axis 102 until the collar 132 abuts the shank 122, at which point the spindle 130 is in its disengaged position and is rotationally decoupled from the rotatable component(s) (e.g., the spring cage 142 and the first actuator 152).
The process 200 may include block 230, which may be performed at least in part while maintaining the spindle in the disengaged position, and which generally involves rotating the lever handle relative to the rotatable component from a first orientation to a second orientation different from the first orientation. As noted above, when the spindle 130 is in the disengaged position, the lever handle 120 is free to rotate relative to at least one rotatable component (e.g., the spring cage 142 and/or the first actuator 152). As such, block 230 may be performed while maintaining the spindle 130 in the disengaged position (
The first orientation is different from the second orientation such that the lever portion 124 extends from the shank 122 in a first direction when the lever handle 120 is in the first orientation, and extends from the shank 122 in a second direction different from the first direction when the handle 120 is in the second orientation. For example, block 230 may involve rotating the lever handle 120 about the longitudinal axis 102 from one of the right-handed orientation 121 or the left-handed illustrated in
The process 200 further includes block 240, which may be performed with the lever handle in the second orientation and which generally involves returning the spindle to the engaged position, thereby coupling the lever handle with the rotatable component. Block 240 may, for example, involve releasing the spindle such that the biasing returns the spindle to the engaged position. For example, block 240 may involve removing the tool 90 such that the biasing force of the spring 129 returns the spindle 130 to its engaged position. In embodiments in which the spindle 130 is not biased toward the engaged position, block 240 may involve returning the spindle 130 to its engaged position in another manner.
With the spindle 130 returned to its engaged position, the new or second orientation of the lever handle 120 is selected, and the spring cage assembly 140 biases the lever handle 120 toward the second orientation. More particularly, when the second orientation is selected, the biasing of the spring cage 142 to its home position by the bias mechanism 148 results in biasing of the lever handle 120 toward the second orientation.
As should be evident from the foregoing, the systems and methods described herein may provide one or more advantages over existing systems. As one example, the systems and methods described herein may obviate the need to remove the lever handle 120 in order to select the new orientation, which may facilitate the re-handing process by reducing the number and/or difficulty of the steps for rehanding. As another example, the systems and methods described herein do not necessarily require a specialized tool for re-handing the handleset 100. Instead, the handleset 100 is operable to be re-handed using a standard tool (e.g. a screwdriver) or another elongated rigid member. This feature may likewise facilitate the rehanding process, for example by enabling rehanding with tools that the user is likely to have at hand, thereby obviating the need for the manufacturer to include a special rehanding tool and the need for the user to keep track of the special rehanding tool.
While the invention has been illustrated and described in detail in the drawings and foregoing description, the same is to be considered as illustrative and not restrictive in character, it being understood that only the preferred embodiments have been shown and described and that all changes and modifications that come within the spirit of the inventions are desired to be protected.
It should be understood that while the use of words such as preferable, preferably, preferred or more preferred utilized in the description above indicate that the feature so described may be more desirable, it nonetheless may not be necessary and embodiments lacking the same may be contemplated as within the scope of the invention, the scope being defined by the claims that follow. In reading the claims, it is intended that when words such as “a,” “an,” “at least one,” or “at least one portion” are used there is no intention to limit the claim to only one item unless specifically stated to the contrary in the claim. When the language “at least a portion” and/or “a portion” is used the item can include a portion and/or the entire item unless specifically stated to the contrary.
