The present disclosure relates generally to shutters for architectural openings and, more particularly, to a louvered shutter for an architectural opening.
Louvered shutters for architectural openings, such as doors, windows, and the like, have taken numerous forms for many years. Louvered shutters generally provide adjustable light and privacy control through the inclusion of multiple rotatable louvers. In operation, consumers may rotate the louvers to a desired position that provides a preferred amount of light and privacy.
Examples of the disclosure may include a shutter panel for an architectural opening. The shutter panel may include a frame and a louver rotatably coupled to the frame and automatically closable based on an angular orientation of the louver. The shutter panel may include a closure device operably associated with the louver and actuated based on an angular orientation of the louver.
In another example, the shutter panel may include a frame, a louver rotatably coupled to the frame, and a closure device operably associated with the louver and configured to move the louver. The closure device may be actuated based on an angular orientation of the louver. The closure device may be automatically actuated or self-actuated based on the angular orientation of the louver. The closure device may be configured to rotate the louver toward a closed position, such as a fully-closed position.
The closure device may include a first cam member and a second cam member. The first cam member may be rotatable relative to the second cam member. The second cam member may be non-rotatable relative to the first cam member. The second cam member may be slidable relative to the first cam member. One of the first cam member or the second cam member may include a protuberance, and the other of the first cam member or the second cam member may include a recessed area configured to receive the protuberance. The first cam member and the second cam member may be aligned along a common axis. The first cam member and the second cam member may be at least partially received within a common housing.
The shutter panel may include a louver pin. The louver pin may interconnect the louver and the frame. The louver pin may be non-rotatably coupled to the first cam member. The first cam member, the second cam member, and the louver pin may be aligned along a common axis. The first cam member, the second cam member, and the louver pin may be at least partially received within a common housing.
The closure device may include a biasing element. The biasing element may bias the second cam member into contact with the first cam member. The first cam member, the second cam member, and the biasing element may be aligned along a common axis. The first cam member, the second cam member, and the biasing element may be at least partially received within a common housing. The housing may include an outer envelope of about one inch in length and about three-eighths of an inch in diameter.
The shutter panel may include a damping device operably associated with the louver. The damping device may include an angular range of disengagement or non-engagement, or a deadband. The damping device may include a damper, such as a linear damper or a rotary damper. The damper may be fluid-based, spring-based, or both. The damper may provide a damping rate that controls or governs a louver closure speed. The damping device may include a centering device configured to substantially center the damper within the angular range of non-engagement of the damping device. The damper may be actuated substantially simultaneously with the closure device. The closure device and the damper may be aligned along a common axis. The closure device and the damping device may be at least partially received within a common housing. The shutter panel may include a tension device operably associated with the louver.
In another example, the shutter panel may include a frame, a louver rotatably coupled to the frame, and a damping device operably associated with the louver and configured to resist movement of the louver. The damping device may be actuated based on an angular orientation of the louver. The damping device may be automatically actuated or self-actuated based on the angular orientation of the louver. The damping device may be configured to control the rate of movement of the louver from an open position toward a closed position, such as a fully-closed position.
The damping device may include a deadband device configured to selectively engage or disengage a damper based on the angular orientation of the louver. The deadband device may include a first deadband member and a second deadband member. The first deadband member may be non-rotatably coupled to the louver. The first deadband member may be rotatable relative to the second deadband member. The first deadband member and the second deadband member may be aligned along a common axis. The second deadband member may be angularly offset relative to the first deadband member about the common axis when the damping device is in a disengaged state. The second deadband member may be angularly aligned with the first deadband member about the common axis when the damping device is in an engaged state.
The damping device may include a damper, such as a linear damper or a rotary damper. The damper may be fluid-based, spring-based, or both. The damper may provide a damping rate that controls or governs a louver closure speed. The damping device may include a centering device configured to substantially return the damper to an initial state associated with a midpoint of a deadband range of the damping device. The centering device may include a first centering member and a second centering member. The first centering member may be non-rotatably coupled to the second deadband member. The first centering member may be rotatable relative to the second centering member. The second centering member may be non-rotatable relative to the first centering member. The second centering member may be slidable relative to the first centering member. One of the first centering member or the second centering member may include a protuberance, and the other of the first centering member or the second centering member may include a recessed area configured to receive the protuberance. The protuberance may be a wedge. The recessed area may be a groove. The protuberance may be a lobe, which may extend outward from a side of the centering member. The recessed area may be defined by a trough and opposing sidewalls of a leaf spring.
The first centering member and the second centering member may be aligned along a common axis. The first centering member and the second centering member may be at least partially received within a common housing. The first deadband member, the second deadband member, first centering member, and the second centering member may be aligned along a common axis. The first deadband member, the second deadband member, first centering member, and the second centering member may be at least partially received within a common housing. The housing may include an outer envelope of about one inch in length and about three-eighths of an inch in diameter.
The damping device may include a biasing element. The biasing element may bias the second centering member into contact with the first centering member. The first centering member, the second centering member, and the biasing element may be aligned along a common axis. The first centering member, the second centering member, and the biasing element may be at least partially received within a common housing.
The shutter panel may include a louver pin. The louver pin may interconnect the louver and the frame. The louver pin may be non-rotatably coupled to the first deadband member. The first deadband member, the second deadband member, and the louver pin may be aligned along a common axis. The first deadband member, the second deadband member, and the louver pin may be at least partially received within a common housing. The first deadband member, the second deadband member, the first centering member, the second centering member, the biasing element, and the louver pin may be aligned along a common axis. The first deadband member, the second deadband member, the first centering member, the second centering member, the biasing element, and the louver pin may be at least partially received within a common housing.
The shutter panel may include a closure device operably associated with the louver. The damping device may be actuated substantially simultaneously with the closure device. The damping device and the closure device may be aligned along a common axis. The damping device and the closure device may be at least partially received within a common housing. The shutter panel may include a tension device operably associated with the louver. The damping device and the tension device may be aligned along a common axis.
In another example, the shutter panel may include a frame, a louver rotatably coupled to the frame, and a tension device operably associated with the louver and configured to retain the louver in an angular orientation. The tension device may include a first tension member non-rotatably coupled to the louver, a second tension member slidable relative to the first tension member, and a biasing element biasing the second tension member into contact with the first tension member. The first tension member may be non-rotatably coupled to a louver pin. The first tension member may be rotatable relative to the second tension member. The second tension member may be non-rotatable relative to the first tension member. The first tension member, the second tension member, and the biasing element may be at least partially received within a common housing. The louver pin, the first tension member, the second tension member, and the biasing element may be at least partially received within a common housing. The first tension member, the second tension member, and the biasing element may be aligned along a common axis. The louver pin, the first tension member, the second tension member, and the biasing element may be at least partially received within a common housing. The housing may include an outer envelope of about one inch in length and about three-eighths of an inch in diameter. The tension device may be configured to resist movement of the louver regardless of an angular orientation of the louver.
This summary of the disclosure is given to aid understanding, and one of skill in the art will understand that each of the various aspects and features of the disclosure may advantageously be used separately in some instances, or in combination with other aspects and features of the disclosure in other instances. Accordingly, while the disclosure is presented in terms of examples, it should be appreciated that individual aspects of any example can be claimed separately or in combination with aspects and features of that example or any other example.
This summary is neither intended nor should it be construed as being representative of the full extent and scope of the present disclosure. The present disclosure is set forth in various levels of detail in this application and no limitation as to the scope of the claimed subject matter is intended by either the inclusion or non-inclusion of elements, components, or the like in this summary. Moreover, reference made herein to “the present invention” or aspects thereof should be understood to mean certain examples of the present disclosure and should not necessarily be construed as limiting all examples to a particular description.
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate examples of the disclosure and, together with the general description given above and the detailed description given below, serve to explain the principles of these examples.
It should be understood that the drawings are not necessarily to scale. In certain instances, details that are not necessary for an understanding of the disclosure or that render other details difficult to perceive may have been omitted. In the appended drawings, similar components and/or features may have the same reference label. Further, various components of the same type may be distinguished by following the reference label by a letter that distinguishes among the similar components. If only the first reference label is used in the specification, the description is applicable to any one of the similar components having the same first reference label irrespective of the second reference label. It should be understood that the claimed subject matter is not necessarily limited to the particular examples or arrangements illustrated herein.
The present disclosure relates to a shutter panel for an architectural opening. The shutter panel may include one or more rotatable louvers. For shutter panels with multiple louvers, the louvers may be linked together by a tilt bar, a gear track system, a pulley system, or another operating system. To move the louvers, a force may be applied directly to a louver or indirectly to a louver through the operating system.
The shutter panel may include a closure feature. For example, during rotation of a louver toward a closed position, the louver may be automatically closed after reaching a certain angular orientation. The automatic closure of the louver may occur without user actuation or interaction. The automatic closure of the louver may ensure a full panel closure, thereby addressing any stacked tolerance issues with the shutter panel.
The shutter panel may include a closure device operably associated with the louver and configured to move the louver. The closure device may be actuated based on an angular orientation of the louver relative to a fully closed position. In some implementations, the closure device is actuated based on the louver being oriented between about 1 degree and about 30 degrees from a fully closed position. In some implementations, the closure device is actuated based on the louver being oriented between about 10 degrees and about 20 degrees from a fully closed position. In some implementations, the closure device is actuated based on the louver being oriented at about 15 degrees from a fully closed position. Upon actuation, the closure device may drive or rotate the louver into the fully closed position.
Additionally or alternatively, the shutter panel may include a damping feature. For example, during rotation of a louver toward a closed position, the rate of louver rotation may be automatically damped after the louver reaches a certain angular orientation. The automatic damping of the rate of motion of the louver may occur without user actuation or interaction. The automatic damping of the rate of louver motion may ensure a substantially consistent, controlled, slow, smooth, and/or soft panel closure.
The shutter panel may include a damping device operably associated with the louver and configured to resist movement of the louver. The damping device may be actuated based on an angular orientation of the louver relative to a fully closed position. In some implementations, the damping device is actuated based on the louver being oriented between about 1 degree and about 30 degrees from a fully closed position. In some implementations, the damping device is actuated based on the louver being oriented between about 10 degrees and about 20 degrees from a fully closed position. In some implementations, the damping device is actuated based on the louver being oriented at about 15 degrees from a fully closed position.
Upon actuation, the damping device may control a rate of louver movement. In some implementations, the damping device is used in a shutter panel employing a closure device. In these implementations, upon actuation, the damping device may control or govern a rate of closure of the closure device and may provide a substantially consistent, controlled, smooth, and/or slow closure of the louver. In these implementations, the damping device may be actuated before, simultaneously, substantially simultaneously, or after the closure device is actuated.
Additionally or alternatively, the shutter panel may include a tensioning feature. For example, once a louver is positioned in a desired orientation, the louver may be automatically held or retained in the desired orientation until a subsequent reorienting force is applied to the louver. The automatic orientation retention of the louver may occur without user actuation or interaction. The automatic tensioning of the louver may ensure the louver remains in the desired orientation without inadvertent rotational slippage of the louver relative to a frame, substantially regardless of the tolerance between a louver pin and a receiving hole formed in the frame.
The shutter panel may include a tensioning device operably associated with the louver and configured to retain the louver in a desired angular orientation. The tensioning device may provide substantially constant and/or uniform friction or tension to the louver substantially regardless of the angular orientation of the louver. The tensioning device may be substantially unaffected by tolerance differences between the tensioning device and a receiving hole or cavity defined by a frame. The tensioning device may be used in a shutter panel employing a closure device, a damping device, or both.
Referring to
The louvers 6 may be positioned within the interior space defined by the frame 4 and may be rotatably coupled to the frame 4. As illustrated in
The louvers 6 may be coupled or grouped together so that the louvers rotate substantially in unison. For example, a tilt bar 12 may be attached to each louver 6 to link the individual louvers together so that movement of the tilt bar 12 causes a substantially uniform movement of the louvers 6. Alternatively, each louver 6 may be operably associated with a gear track system embedded within each stile 8. A slider knob or other actuator may be operably associated with the gear track system to substantially uniformly move the louvers 6. Alternatively, each louver 6 may be operably associated with a pulley system embedded within each stile 8. A slider knob or other actuator may be operably associated with the pulley system to substantially uniformly move the louvers 6.
With reference to
With reference to
With reference to
With continued reference to
When assembled, the housing members 20a, 20b may define a series of substantially cylindrical inner walls 40a, 40b, 40c axially spaced along the longitudinal axis 30 of the louver closure device 18. The inner walls 40a, 40b, 40c may define axially-spaced, contiguous sub-cavities 41a, 41b, 41c that may collectively form an internal cavity 41 of the housing 20. The inner walls 40a, 40b, 40c each may have a different radius, thereby defining a series of shoulders 42a, 42b that form transitions between adjacent inner walls 40a, 40b, 40c. The shoulders 42a, 42b may be oriented substantially perpendicular to the longitudinal axis 30. A longitudinally-extending slot 44 may be formed in one of the inner walls 40c.
The housing 20 may include a substantially cylindrical outer surface 46 extending lengthwise between opposing ends 48a, 48b of the housing 20. The ends 48a, 48b of the housing 20 may be spaced apart from one another along the longitudinal axis 30 and may be oriented substantially perpendicular to the outer surface 46 of the housing 20. A circumferential flange 50 may extend radially outward from the outer surface 46 of the housing 20 adjacent one of the ends 48a of the housing. When attached to a shutter panel 2, the substantially cylindrical outer surface 46 of the housing 20 may be positioned within a receiving hole formed in a member of the shutter panel 2 (such as a louver 6, a stile 8, or a rail 10) and the circumferential flange 50 may abut a wall surrounding the hole to substantially prevent further insertion of the housing 20 into the hole. A pair of longitudinally-extending fins 52 may protrude radially outward from the outer surface 46 of the housing 20. The fins 52 may key into an inner wall of the shutter panel member that defines the hole to substantially prevent rotation of the housing 20 within the hole. Although depicted as substantially cylindrical, the outer surface 46 of the housing 20 may be formed in various transverse cross-sectional shapes, such as rectangular, triangular, or other suitable shapes.
With reference to
With reference back to
The louver pin 22 also may include a tip portion 22d, which may be integrally formed with and extend longitudinally away from one end of the first keyed portion 22a. The tip portion 22d of the louver pin 22 may align the louver pin 22 within a louver pin receiving hole, which may be formed in an end of a louver 6, a stile 8, a rail 10, or the like. The tip portion 22d may be substantially conical (
The louver pin 22 further may include a collar portion 22e, which may extend radially outward from an opposite end of the first keyed portion 22a relative to the tip portion 22d. The collar portion 22e may be adjacent the journal portion 22c of the louver pin 22. The collar portion 22e of the louver pin 22 may abut one end 48a of the housing 20 (
The housing 20 and the louver pin 22 may be non-rotatably secured to different structures of the shutter panel 2 so that rotation of one structure relative to the other structure of the shutter panel 2 causes relative rotation between the housing 20 and the louver pin 22. For example, the housing 20 may be non-rotatably secured to a stile 8. In this example, the louver pin 22 may protrude from an end of the housing 20 and may be non-rotatably secured to a corresponding louver 6. As such, rotation of the louver 6 may rotate the louver pin 22 relative to the housing 20. As another example, the housing 20 may be non-rotatably secured to a louver 6. In this example, the louver pin 22 may protrude from an end of the housing 20 and may be non-rotatably secured to a stile 8. As such, rotation of the louver 6 may rotate the housing 20 relative to the louver pin 22. The housing 20 and the louver pin 22 may be non-rotatably embedded within the different structures of the shutter panel 2.
With reference to
The rotary cam 24 may include an alignment key and the linear cam 26 may include a complementary alignment feature. For example, the rotary and linear cams 24, 26 may include a complementary protuberance and groove. As another example, the rotary and linear cams 24, 26 may include a complementary spring-biased detent (such as a ball detent) and recessed receiving area. With continued reference to
With reference back to
The rotary cam 24 may be oriented within the sub-cavity 41b of the housing 20 so that the receptacle 66 may open to the sub-cavity 41a (
With reference to
The linear cam 26 may be slidable relative to the housing 20. With reference to
With continued reference to
With reference back to
With reference to
The louver closure device 18 may be configured to provide a consistent holding force that maintains the louvers 6 in a desired position. With continued reference to
The compressive force exerted on the rotary cam 24 may generate a resistive friction force that generally opposes relative rotational movement between the rotary cam 24 (and thus the louver pin 22) and the housing 20. In this manner, the louver closure device 18 may counteract gravitational forces applied to the louver 6 and generally resist louver movement. The magnitude of the resistive friction force may be increased or decreased by altering a coefficient of friction between the contacting surfaces (such as by altering materials, surface finish, or the like), by altering a spring force exerted by the compression spring 28, or both. The spring 28 may be selected from an assortment of springs based on the specific louver panel application.
Once a torque sufficient to overcome the resistive friction force of the louver closure device 18 is applied to the louver pin 22 or the housing 20, the rotary cam 24 and the louver pin 22 may rotate relative to the housing 20 and the linear cam 26, or vice versa. During the relative rotation between the rotary cam 24 and the linear cam 26, the transversely-extending peak 68c of the cam surface 68 may rotatably bear against the confronting end 74a of the linear cam 26. The relative rotation between the rotary cam 24 and the linear cam 26 may cause the relative angle between the protuberance 67 and the groove 80 to decrease from substantially perpendicular to an acute angle. With reference to
With reference to
With reference to
With reference to
Once the louver 6 is rotated to or beyond the angular position B1 or B2, the louver 6 may enter into an automatic or cam-driven closure range 86, which may correspond to the louver closure device 18 configuration depicted in
The angles β and θ may be altered based on different applications, user preferences, and many other factors. For example, the corresponding cam features 67, 80 of the rotary and linear cams 24, 26 may be altered to change the closure angles. With reference to
Once the louver 6 is oriented into the fully-closed angular position C1 or C2, which as previously discussed may correspond to the louver closure device 18 depicted in
Generally, the corresponding cam features may generate a rotational force when substantially aligned with one another. The profiles of the cam surface 68 and the cam surface 78 may be switched without effecting the operation of the louver closure device 18. That is, in one implementation, the cam surface 68 is recessed into an end 62b of the body 58 of the rotary cam 24 and the cam surface 78 protrudes from a confronting end 74a of the body 70 of the linear cam 26.
The automatic or self-closure of the louvers 6 may be advantageous in view of conventional shutters, which may experience inconsistent or uneven louver closure due at least in part to component tolerances designed to prevent binding. For example, when a force is applied near an end of a conventional shutter panel, some of the louver motion caused by the force may not be transferred through the shutter panel as the component tolerances may absorb some of the motion. Thus, louvers near an opposite end of the panel may not travel as far as the louvers near the force application point. The varying amount of louver travel through the shutter panel may result in inconsistent or uneven louver closure. In some circumstances, the inconsistent or uneven louver closure may permit undesired light passage through the shutter panel, despite a user applying a force to the shutter panel to close the shutters. By including at least one louver closure device 18 in a shutter panel 2, the louvers 6 in the shutter panel 2 may automatically close into a fully closed position and may remain in that position until an opening force is applied to the louvers 6. Multiple louver pin cam assemblies 18 may be used in some shutter panels and may be dispersed through the shutter panel to ensure consistent and reliable louver closure. The automatic closure angle of the louver closure assembly may be altered based on user preferences.
With reference to
With continued reference to
The louver tension device 118 may be configured to provide a consistent holding force that maintains the louver 6 in a desired position. With continued reference to
The compressive force exerted on the rotary cam 124 may generate a resistive friction force that generally opposes relative rotational movement between the rotary cam 124 (and thus the louver pin 122) and the housing 120. In this manner, the louver tension device 118 may counteract gravitational forces applied to the louvers 6 and generally resist louver movement. The magnitude of the resistive friction force may be increased or decreased by altering a coefficient of friction between the contacting surfaces (such as by altering materials, surface finish, or the like), by altering a spring force exerted by the compression spring 128, or both. The spring 128 may be selected from an assortment of springs based on a specific shutter panel application.
Each louver tension device 118 may be configured to restrain or inhibit rotation of at least a portion of one louver 6 until a user-initiated force is applied to the louver 6. For example, a single louver tension device 118 may resist rotation of a portion of the louvers 6 in a given shutter panel 2 so that multiple louver pin tension assemblies 118 may collectively maintain all of the shutter panel louvers in a given position. As another example, a single louver tension device 118 may resist rotation of all louvers 6 in a given shutter panel 2 so that a single louver tension device 118 may individually maintain all of the shutter panel louvers in a given position.
Once a torque sufficient to overcome the resistive friction force of the louver tension device 118 is applied to the louver pin 122 or the housing 120, the rotary cam 124 and the louver pin 122 may rotate relative to the housing 120 and the linear cam 126, or vice versa. During the relative rotation between the rotary cam 124 and the linear cam 126, one end 162b of the rotary cam 124 may rotatably bear against the confronting end 174a of the linear cam 126. At substantially any point during this rotation, the user-initiated force may be ceased and the resistive friction force or tension in one or more louver tension assemblies 118 may maintain the orientation of the louver 6 until further louver movement is initiated by the user. As the rotary cam 124 does not include the protuberance 67, the contact area between the rotary cam 124 and the linear cam 126 is generally increased in the louver tension device 118 compared to the louver closure device 18. As such, the louver tension device 118 may provide a larger resistive friction force relative to the louver closure device 18. Although the linear cam 126 is depicted with a groove 180 formed in a rotary-cam-confronting end 174a of the linear cam 126, in some implementations the linear cam 126 does not include the groove 180 and the rotary-cam-confronting end 174a of the linear cam 126 may be substantially continuous.
The louver tension device 118 may provide advantages relative to conventional louver tension pins. For example, the louver tension device 118 may provide substantially consistent frictional resistance or tension to the shutter panel regardless of a fit or tolerance between an inner wall of a receiving hole and an outer wall of the housing 120. In various implementations, the resistive frictional force generated between the confronting end faces of the rotary cam 124 and the linear cam 126 may be substantially unaffected by the fit or tolerance of the housing 120 and an inner wall of a receiving hole. That is, the louver tension device 118 may resist louver rotation with a substantially consistent force regardless of tolerance variations between the louver tension device 118 and a corresponding structure of the shutter panel 2.
With reference to
The damper 219 may be a rotary damper and may include a barrel or outer wall 225 that is non-rotatably keyed to the housing 220 to substantially prevent relative rotation between the outer wall 225 of the damper 219 and the housing 220. As illustrated in
With continued reference to
In some implementations, a rotary damper manufactured by Nifco Inc. may be used. In one implementation, a small axis damper manufactured by Nifco Inc. (for example, part number 3F7W or 3F7X) may be used. The torque specification of the damper may vary depending on the shutter panel application. In one implementation, the damper torque may be about 5 Ncm, about 10 Ncm, or any other suitable torque level based on the shutter panel application.
The deadband system 221 may be non-rotatably keyed to the shaft 233 of the damper 219 to selectively transfer torque from an associated louver 6 to the damper 219 based upon a rotational orientation of the louver 6. The deadband system 221 may include a damper adapter 235 and a louver pin adapter 237. The damper adapter 235 may be positioned intermediate the louver pin adapter 237 and the damper 219 along the longitudinal axis 230 of the louver damping device 218.
With continued reference to
The louver pin adapter interface portion 235b of the damper adapter 235 may be associated with an opposing end of the damper adapter 235 relative to the damper interface portion 235a. The louver pin adapter interface portion 235b may include two diametrically opposed tangs 245. The tangs 245 may protrude axially from a substantially flat end face 247 of the louver pin adapter 237. When the louver damping device 218 is assembled, the tangs 245 may selectively interact with the louver pin adapter 237, which is discussed in more detail later in this disclosure.
The centering system interface portion 235c of the damper adapter 235 may be positioned intermediate the damper interface portion 235a and the louver pin adapter interface portion 235b. The centering system interface portion 235c may include a cam actuator 267 extending axially in a direction away from the tangs 245 toward the damper 219. The cam actuator 267 may be formed as a wedge, as illustrated in
With continued reference to
The louver pin adapter 237 may include two wings 249 extending radially outward from a substantially cylindrical bearing surface 251. The wings 249 and the substantially cylindrical bearing surface 251 may protrude longitudinally from an end 237b of the louver pin adapter 237. When the louver damping device 218 is assembled, the tangs 245 of the damper adapter 235 may rotatably bear against the substantially cylindrical bearing surface 251 of the louver pin adapter 237 to maintain an axial alignment between the damper adapter 235 and the louver pin adapter 237. Additionally, the tangs 245 of the damper adapter 235 may be positioned within a rotational path of the wings 249 of the louver pin adapter 249 to selectively transfer torque from the louver pin adapter 237 through the damper adapter 235 to the damper 219.
Within continued reference to
With continued reference to
Once the wings 249 of the louver pin adapter 237 contact the tangs 245 of the damper adapter 235, further rotation of the louver 6 in a closing direction (which may be driven by the louver closure device 18) may be transferred to the damper 219 through the keyed engagement of the damper adapter 235 and the shaft 233 of the damper 219. That is, rotational alignment of the wings 249 and the tangs 245 may result in damper engagement. Once engaged, the damper 219 may resist further rotation of the louver 6 in a closing direction. The radial width of the wings 249 and the tangs 245 may be configured such that the wings 249 contact or engage the tangs 245, thereby actuating the damper 219, substantially simultaneously with the actuation of the louver closure device 18. The damping rate of the damper 219 may restrain the closing force of the louver closure device 18 and provide a generally controlled, consistent, slow, and/or smooth closure. As such, the damping rate of the damper 219 may control or govern the rate of closure of the louver 6. The actuation of the louver damping device 218 may be altered by changing the radial width of the tangs 245, the wings 249, or both.
As the damper adapter 235 is rotated by the louver pin adapter 237 during closure of the louver 6, the damper adapter 235 may rotate relative to the linear cam 226, which may be positioned around the outer wall 239 of the sleeve portion 235a of the damper adapter 235. The relative rotation between the damper adapter 235 and the linear cam 226 may cause the cam actuator 267 to contact a sidewall 259 of the groove 257 and drive the linear cam 226 toward the damper 219 against the spring force of the compression spring 228. When the louver 6 is in a fully closed position, the louver closure device 18 may hold the louver 6 in the fully closed position, thereby maintaining the cam actuator 267 in engagement with the sidewall 259 of the groove 257 (the spring force of the compression spring 28 of the louver closure device 18 is larger than the spring force of the compression spring 228).
To open the louver 6 from the fully-closed position, an opening force that exceeds the closing force of the louver closure device 18 may be applied to the louver 6. As the louver 6 is opened, the louver pin adapter 237 may rotate in unison with the louver 6. Also, the compression spring 228 of the louver damping device 218 may slide the linear cam 226 away from the damper 219 toward the louver pin adapter 237, which may cause the sidewall 259 of the groove 257 to apply a lateral force to the cam actuator 267 of the damper adapter 235, which may rotate the damper adapter 235 (and thus the damper 219) into its initial position that may correspond to a fully-opened louver position. In this position, the cam actuator 267 may be seated in the groove 257 and the tangs 245 may be rotated into their pre-engagement position relative to the wings 249 of the louver pin adapter 237.
The louver damping device 218 may provide a generally controlled, consistent, slow, and/or smooth closure of the louver 6. The deadband system 221 of the louver damping device 218 may provide a first angular range in which the damper 219 is disengaged from the louver 6 and a second angular range in which the damper 219 resists rotation of the louver 6. The centering system 223 of the louver damping device 218 may re-align or re-center at least some of the components of the louver damping device 218 (which may include the damper 219) in preparation for subsequent louver closure.
By including a louver closure device 18 and a louver damping device 218 in a shutter panel 2, the louvers 6 in the shutter panel 2 may automatically close in a generally controlled, consistent, slow, and/or smooth manner into a fully closed position and may remain in that position until an opening force is applied to the louvers 6. Multiple louver damping assemblies 218 may be used in some shutter panels and may be dispersed through the shutter panel to ensure a controlled louver closure. The actuation of the louver damping device 218 may be altered based on user preferences.
With reference to
The housing 320 may include a base 320a and multiple side panels 320b-320e attached to and extending away from the base 320 to form a substantially rectangular body closed at one end and open at the other end. Although not depicted, the housing 320 may include a removable cover that closes the open end of the substantially rectangular body. The cover may include an aperture for permitting passage of the gear portion 361 of the rotary cam 324 so that the gear portion 361 may engage the gear racks 363 exterior to the housing 320.
With continued reference to
The damper adapter 335 may interconnect the rotary damper 319 and the rotary cam 324. The damper adapter 335 may include a body 365 that includes an outer wall 365a and an inner wall 365b. The inner wall 365b may define a keyed socket corresponding in shape to and configured to receive the shaft 333 of the damper 319. A pair of wings 349 may extend radially outward from the outer wall 365a of the body 365 of the damper adapter 335. The wings 349 may be diametrically opposed about the outer wall 365a. A latch feature 371 may extend longitudinally from one end of the body 365. The latch feature 371 may include two resilient, transversely spaced arms 373 each having a barb 375 formed on a distal end relative to the body 365 of the damper adapter 335.
With continued reference to
The rotary cam 324 may include a pair of diametrically opposed tangs 345 that extend radially inward from the body 377 into the recessed opening 379 (
The recessed opening 379 may extend through the body 377 of the rotary cam 324 and may be configured to receive a louver pin in an opposing relationship to the damper adapter 335. In this configuration, the louver pin and the damper adapter 335 may be aligned along the longitudinal axis 330 of the louver damping device 318. The louver pin and the rotary cam 324 may be non-rotatably keyed together with an interference or press fit or other keying structures, such as those previously discussed in connection with the louver pin 22 and the louver closure device 18.
With continued reference to
With continued reference to
With reference to
Similar to the louver closure device 18, the louver tension device 118, and the louver damping device 218, the louver damping device 318 may be coupled to a louver 6 so that at least one component of the louver damping device 318 may rotate in unison with the louver 6. As previously discussed, the rotary cam 324 may be non-rotatably coupled to a louver pin to transfer torque between the louver 6 and the rotary cam 324. With reference back to
With continued reference to
To reset or re-center the wings 349 of the damper adapter 335 relative to the tangs 345 of the rotary cam 324 (thereby resetting the damper deadband to the fully-opened louver position), the lobes 367 of the rotary cam 324 and the leaf springs 328 may be used on a smaller scale in association with the damper adapter 335. That is, the body 365 of the damper adapter 335 may include lobes protruding from opposite sides of the body 365 that selectively contact or engage peak sidewalls of opposing leaf springs based on the angular orientation of the louver 6. As the peak sidewalls of the opposing leaf springs may elastically deform during automatic louver closure, the leaf springs may store potential energy that may be released as the louver 6 is rotated from a fully-closed position toward a fully-opened position, which in turn may rotate the damper adapter 335 into its louver fully-opened position through the contact or engagement of the leaf springs and the lobes associated with the body 365 of the damper adapter 335. Additionally or alternatively, a button may be associated with a lobe 367 of the rotary cam 324 and selectively engagable with a wing 349 of the damper adapter 335. A sidewall 387 and/or peak 391 of a corresponding leaf spring 328 may depress the button as the louver 6 is approaching full closure, which may cause the button to contact a wing 349 of the damper adapter 335, which may rotate the damper adapter 335 and reorient or re-center the wings 349 of the damper adapter 335 relative to the tangs 345 of the rotary cam 324.
With reference to
With continued reference to
The linear cam 426 may include a longitudinally-extending rod 488 protruding from an end 474b of the linear cam 426. The rod 488 may extend along the longitudinal axis 430 of the louver closure and damping assembly 418 through an inner space of the compression spring 428 and the damper 419. A fastener, such as a clip 490, may be interference or press fit within a circumferential groove 491 formed in a distal end of the rod 488 that extends axially beyond the damper 419.
With reference to
With continued reference to
With continued reference to
With reference to
The components or parts discussed herein may be constructed from various types of materials, including metallic and non-metallic materials. In one implementation, the various housings, rotary cams, cams, and louver pins are made from Lustran® acrylonitrile butadiene styrene (ABS) 433. In one implementation, the various springs are made from stainless steel. The components or parts discussed herein may include various surface finishes or textures. In one implementation, the various housings, rotary cams, cams, and louver pins include a polish of SPI-A2 (Society of Plastics Industry).
The foregoing description has broad application. The louver closure, damping, and tension assemblies may be incorporated into any type of shutter panel, including shutter panels with solid wood frames and hollow vinyl frames. Further, the louver closure, damping, and tension assemblies may be used in connection with any type of louver actuation system, including gear rack systems, pulley systems, tilt bars, and other louver actuation systems. Moreover, the louver closure, damping, and tension assemblies may be provided as a self-contained module or unit that may be retrofit into existing shutter panels. Furthermore, the louver closure, damping, and tension assemblies may include a relatively small outer envelope, which may not compromise the integrity of the frame of the shutter panel. For example, the louver closure, damping, and tension assemblies may include an outer envelope of about one inch in length and about three-eighths of an inch in diameter. Accordingly, the discussion of any example is meant only to be explanatory and is not intended to suggest that the scope of the disclosure, including the claims, is limited to these examples. In other words, while illustrative examples of the disclosure have been described in detail herein, it is to be understood that the inventive concepts may be otherwise variously embodied and employed, and that the appended claims are intended to be construed to include such variations, except as limited by the prior art.
The foregoing discussion has been presented for purposes of illustration and description and is not intended to limit the disclosure to the form or forms disclosed herein. For example, various features of the disclosure are grouped together in one or more aspects, embodiments, or configurations for the purpose of streamlining the disclosure. However, it should be understood that various features of the certain aspects, embodiments, or configurations of the disclosure may be combined in alternate aspects, embodiments, or configurations. Moreover, the following claims are hereby incorporated into this Detailed Description by this reference, with each claim standing on its own as a separate embodiment of the present disclosure.
The phrases “at least one”, “one or more”, and “and/or”, as used herein, are open-ended expressions that are both conjunctive and disjunctive in operation. For example, each of the expressions “at least one of A, B and C”, “at least one of A, B, or C”, “one or more of A, B, and C”, “one or more of A, B, or C” and “A, B, and/or C” means A alone, B alone, C alone, A and B together, A and C together, B and C together, or A, B and C together.
The term “a” or “an” entity, as used herein, refers to one or more of that entity. As such, the terms “a” (or “an”), “one or more” and “at least one” can be used interchangeably herein.
The use of “including,” “comprising,” or “having” and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. Accordingly, the terms “including,” “comprising,” or “having” and variations thereof are open-ended expressions and can be used interchangeably herein.
All directional references (e.g., proximal, distal, upper, lower, upward, downward, left, right, lateral, longitudinal, front, back, top, bottom, above, below, vertical, horizontal, radial, axial, clockwise, and counterclockwise) are only used for identification purposes to aid the reader's understanding of the present disclosure, and do not create limitations, particularly as to the position, orientation, or use of this disclosure. Connection references (e.g., attached, coupled, connected, and joined) are to be construed broadly and may include intermediate members between a collection of elements and relative movement between elements unless otherwise indicated. As such, connection references do not necessarily infer that two elements are directly connected and in fixed relation to each other. Identification references (e.g., primary, secondary, first, second, third, fourth, etc.) are not intended to connote importance or priority, but are used to distinguish one feature from another. The drawings are for purposes of illustration only and the dimensions, positions, order and relative sizes reflected in the drawings attached hereto may vary.
This application is a continuation of U.S. application Ser. No. 14/766,147, filed Aug. 6, 2015, which is a National Stage Entry of International Application Ser. No. PCT/US2013/031780, filed Mar. 14, 2013, the disclosures of both of which are hereby incorporated by reference herein in their entirety for all purposes.
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Number | Date | Country | |
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20190242180 A1 | Aug 2019 | US |
Number | Date | Country | |
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Parent | 14766147 | US | |
Child | 16388189 | US |