Clockwork swing assembly and method of use

Abstract

The present disclosure relates to a clockwork swing assembly. The clockwork swing assembly includes a swing arm assembly, a drive spring, and an escapement assembly. Each axis of the swing arm assembly, the drive spring, and the escapement assembly can be angled relative to each other. The axis of the drive spring can be angled in a non-vertical direction relative to a vertical plane. The axis of the swing arm assembly can be angled in a non-horizontal direction relative to a horizontal plane or support surface.

Description

[0001] Cross-references to related applications

[0002] This application claims the benefits of U.S. Provisional Application No. 63 / 691,077, filed September 5, 2024, and U.S. Provisional Application No. 63 / 584,758, filed September 22, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure generally relates to a child swing assembly, and more specifically, to a non-electric child swing assembly and its method of use. Background Technology

[0004] Child swing devices are well-known. Many known child swing devices are powered by electricity or batteries. These types of child swing devices can be considered electric swing devices because they have a dedicated motor unit or other drive mechanism to generate periodic or swinging motions and require a power source. Due to environmental concerns, there is a growing commercial demand in many consumer sectors for more environmentally friendly products that do not require electricity to operate, whereas electric operation typically consumes fossil fuels or batteries, which can be harmful to the environment.

[0005] Before the commercialization of electric swing devices, many known children's swing devices relied on human power or were driven by a horizontally positioned drive spring. Typically, the drive spring had a central axis extending in the horizontal direction (i.e., the drive spring axis) and was positioned above the children's swing device.

[0006] While using a drive spring to power the swing assembly addresses the growing demand for more environmentally friendly children's swing devices, traditional drive spring-driven swing devices often have drawbacks that make them less than ideal. For example, traditional wind-up swing devices have a relatively short run time (e.g., 20 minutes) after being fully wound. Furthermore, traditional wind-up swing devices typically require a larger footprint or occupy more space.

[0007] In addition to increasing operating time and reducing the footprint of the wind-up child swing mechanism, effectively transmitting force between the various sub-components of the swing assembly (such as the drive spring, escapement assembly, and swing arm assembly) can also be difficult.

[0008] Since springs can store relatively little energy, minimizing energy loss due to friction is crucial. Therefore, low-friction designs are necessary, especially when transmitting rotation between shafts. This is also advantageous for shafts that are not parallel to each other. The benefit is that energy transfer between shafts of various components is achieved with minimal frictional loss, while maintaining a cost-effective and feasible design.

[0009] Therefore, it is desirable to provide a compact, wind-up child swing device that offers a relatively long operating time and effectively transmits force between the main components. Summary of the Invention

[0010] This disclosure relates to a wind-up child swing device that addresses the typical drawbacks of conventional wind-up swing devices. Unlike conventional wind-up swing devices where the drive spring is oriented along a horizontal axis above the swing device itself, the swing device assembly of this disclosure has a drive spring having a central axis (i.e., the drive spring axis) oriented in a non-horizontal direction. In some examples, the drive spring axis can be at an angle of a few degrees to the vertical direction. In some examples, the drive spring axis can be at any angle from 45 degrees to 90 degrees to the ground support surface (i.e., perpendicular to the ground support surface). In other examples, the drive spring axis can extend vertically. The wind-up swing device disclosed herein also has a longer operating time, exceeding 45-60 minutes based on the user winding the drive spring for approximately 20 seconds or approximately 20-30 turns.

[0011] This disclosure relates to a wind-up child swing device that addresses the typical drawbacks of conventional wind-up swing devices. Unlike conventional wind-up swing devices where the drive spring is oriented along a horizontal axis above the swing device itself, the swing device assembly of this disclosure has a drive spring having a central axis oriented in a non-horizontal direction (i.e., the drive spring axis). In some examples, the drive spring axis can be at an angle of several degrees to the vertical direction. In some examples, the drive spring axis can be at any angle from 45 degrees to 90 degrees to the ground support surface (i.e., perpendicular to the ground support surface). In other examples, the drive spring axis can extend vertically. The wind-up swing device disclosed herein also has a longer operating time, exceeding 45-60 minutes based on the user winding the drive spring for approximately 20 seconds or approximately 20-30 turns.

[0012] In one example, the clockwork oscillating assembly includes: a frame assembly comprising a housing; a drive spring positioned within the housing and having a drive spring axis (X3) oriented in a non-vertical direction relative to a vertical plane; a swing arm assembly connected to the frame assembly to receive energy from the drive spring, the swing arm assembly including a swing arm and a swing arm pivot, the swing arm being rotatable about a swing arm axis (X1) oriented in a non-horizontal direction relative to a horizontal plane; and a winding mechanism including a winding shaft positioned along the drive spring axis (X3), the winding mechanism having a first end connected to a crank assembly and a second end connected to a spool. The drive spring includes a first end connected to an attachment plate arranged around the winding shaft and a second end connected to the spool, such that rotation of the winding shaft winds the drive spring via the spool.

[0013] The tightening mechanism may further include: a first tightening gear arranged around a tightening shaft and attached to an attachment plate; and a second tightening gear meshing with the first tightening gear, wherein stored energy released from a drive spring can rotatably drive the first tightening gear, which in turn rotatably drives the second tightening gear. The escapement assembly may include an escapement shaft connected to a second tightening gear that rotatably drives the escapement shaft, the escapement shaft being oriented along an escapement axis (X2), the escapement assembly including: a bracket connected to the escapement shaft and configured to rotate about the escapement axis (X2); a pusher including a first end connected to the bracket and a second end connected to a swing arm assembly, the pusher driving the swing arm assembly to rotate when the escapement gear is driven via the connection between the escapement shaft and the second tightening gear by stored energy released from a drive spring; and an escapement gear fixed to the escapement shaft and configured to be driven via the second tightening gear, the escapement gear including a plurality of teeth.

[0014] The escapement assembly may further include: a pawl pivotally attached to the frame assembly, the pawl including pawl teeth that selectively engage with the teeth of the escape gear to prevent the escape gear from rotating in the drive direction when the swing arm is in the intermediate position; a clamp pivotally attached to the bracket and selectively engaging with the teeth of the escape gear when the swing arm rotates and the pawl teeth disengage from the escape gear; an amplitude control assembly; and an amplitude control lever. The amplitude control lever includes a first stop and a second stop spaced apart from each other, and each stop is configured to control the swing amplitude.

[0015] The amplitude control assembly may include a drop plate configured to selectively limit the clamp travel, and an amplitude control lever configured to selectively adjust the position of the drop plate, wherein the drop plate includes an engagement portion configured to engage a portion of the clamp and an attachment configured to engage a portion of the amplitude control lever. The amplitude control lever may include a closed position. The housing supporting the amplitude control assembly may include a downward stop for limiting further movement of the amplitude control lever, the downward stop corresponding to the closed position of the amplitude control lever. When the amplitude control lever is in the closed position, a gap may be provided between the attachment configured to engage a portion of the amplitude control lever and the housing supporting the amplitude control assembly, allowing the drop plate to float.

[0016] According to an alternative, the spring-loaded oscillating assembly includes: a frame assembly comprising a housing; a drive spring positioned within the housing and having a drive spring axis (X3) oriented in a non-vertical direction relative to a vertical plane; a swing arm assembly connected to the frame assembly to receive energy from the drive spring, the swing arm assembly including a swing arm and a swing arm pivot, the swing arm being rotatable about a swing arm axis (X1) oriented in a non-horizontal direction relative to a horizontal plane; a tensioning mechanism including a tensioning shaft positioned along the drive spring axis (X3); and a torque-limiting clutch configured to prevent over-tensioning of the drive spring.

[0017] The torque limiting clutch can be radially supported at its axis of rotation. The outer lower bearing circumference of the torque limiting clutch can be axially supported by the housing. A low-friction spacer can be inserted between the housing and the lower bearing circumference of the torque limiting clutch. The outer upper support circumference of the torque limiting clutch can be axially supported by a crown. The tightening mechanism can have a first end connected to the crank assembly and a second end connected to the spool. The torque limiting clutch can include a torque clutch spring mounted on the spool, configured to tighten when the tightening shaft rotates in the tightening direction and to slide when the drive spring is tightened beyond a predetermined torque. The tightening mechanism can include a tightening shaft positioned along the drive spring axis (X3), having a first end connected to the crank assembly and a second end connected to the spool.

[0018] A torque-limiting clutch may include: a first housing operably connected to a crank assembly, the first housing including clutch drive teeth; a clutch hub fixed to the crank assembly; and a clutch pawl pivotally connected to the clutch hub via a biasing element, the clutch pawl being biased by the biasing element to selectively engage with the clutch drive teeth. A drive spring may be tightened via the crank assembly, the clutch pawl engaging with the clutch drive teeth until a predetermined torque limit is reached to transmit torque from the crank assembly to the drive spring, and when the torque transmitted from the crank assembly to the drive spring exceeds the predetermined torque limit, the clutch pawl disengages from the clutch drive teeth to prevent further torque transmission from the crank assembly to the drive spring.

[0019] A torque-limiting clutch may include an input shaft connected to a crank assembly, an output shaft connected to a drive spring, a cap fixed to the input shaft, and a clutch spool fixed to the output shaft and clamped to the cap. The cap and spool may be configured to slide relative to each other when a predetermined force is overcome, to prevent the drive spring from being over-tightened.

[0020] The torque limiting clutch may include: a shaft connected to a crank assembly, an input hub including at least one catch, and an output hub connected to the shaft, the output hub including at least one protrusion that engages with the catch. The at least one protrusion may be configured to disengage from the at least one catch when a predetermined force from the crank assembly is overcome, to prevent over-tightening of the drive spring. The at least one catch may be an elastic member biased toward engagement with the at least one protrusion. The at least one catch may be pivotally attached to the input hub. A spring may be connected to the at least one catch and bias the at least one catch toward engagement with the at least one protrusion. A low-friction support washer may be located between the housing and the torque limiting clutch, the low-friction support washer being mounted in a gear cap within the housing.

[0021] According to another embodiment, the spring-loaded oscillating assembly includes: a frame assembly having an upper end and a lower end; a base member located at the lower end of the frame assembly; and an upright frame member extending from the base member to the upper end of the frame assembly. The frame assembly includes a housing, a drive spring axis (X3) positioned within the housing and oriented in a non-vertical direction relative to a vertical plane, and a swing arm assembly connected to the frame assembly to receive energy from the drive spring. The swing arm assembly includes a swing arm and a swing arm pivot, the swing arm being rotatable about a swing arm axis (X1) oriented in a non-horizontal direction relative to a horizontal plane. The upright frame member is welded to the base member.

[0022] The frame assembly may further include: a support member located at the lower end of the frame assembly, the support member being configured to rest on the ground; and a handle positioned adjacent to the upper end of the frame assembly. The support member may extend from the base member in the opposite direction.

[0023] Another embodiment is described below. Attached Figure Description

[0024] The foregoing overview and the following detailed description will be better understood when read in conjunction with the accompanying drawings, which illustrate preferred embodiments of the present disclosure. In the drawings: Figure 1A This is a 3D diagram of a wind-up child swing component.

[0025] Figure 1B This is another 3D view of the wind-up child swing component.

[0026] Figure 1C This is a top view of the wind-up child swing assembly.

[0027] Figure 2 This is a 3D view of a wind-up child swing assembly with the shell frame removed.

[0028] Figure 3A It is a three-dimensional view of the top of the frame assembly, in which the crank assembly is in an unused or stored state.

[0029] Figure 3B This is a 3D view of the top of the frame components, with the crank component in use.

[0030] Figure 3C This is a schematic diagram of the crank assembly according to the first embodiment.

[0031] Figure 3D This is a schematic diagram of the crank assembly according to the second embodiment.

[0032] Figure 3E This is a schematic diagram of the crank assembly according to the third embodiment.

[0033] Figure 3F This is a schematic diagram of the crank assembly according to the fourth embodiment.

[0034] Figure 3G It is a 3D view of the top of a sample frame component, where the crank component is in an unused or stored state.

[0035] Figure 3H It is a 3D view of the top of a sample frame component, where the crank component is in use.

[0036] Figure 3I This is a bottom view of the top cap of the frame component.

[0037] Figure 4A This is a 3D view of the upper part of the wind-up child swing assembly.

[0038] Figure 4B This is a side view of the upper part of the wind-up child swing assembly.

[0039] Figure 4C This is a 3D view of the bottom of the drive spring.

[0040] Figure 4D This is a three-dimensional sectional view of the bottom of the drive spring.

[0041] Figure 4E This is another perspective view of the bottom and frame portion of the drive spring.

[0042] Figure 4FThis is another perspective view of the bottom and part of the frame of the drive spring, based on another example.

[0043] Figure 5A This is another 3D view of the upper part of the wind-up child swing assembly.

[0044] Figure 5B This is an exploded 3D view of the escapement assembly.

[0045] Figure 5C It is a three-dimensional view of the bracket, pivot housing, and pusher in an assembled state.

[0046] Figure 5D It is a three-dimensional view of the bracket, pivot housing, and pusher in a disassembled state.

[0047] Figure 5E This is a side sectional view showing the various axes of the wind-up child swing assembly.

[0048] Figure 5F This is an enlarged view of the interface between the pusher and the bracket.

[0049] Figure 5G This is a front view of the interface between the pusher and the bracket.

[0050] Figure 5H This is an enlarged view of a bracket configured to accommodate a pusher.

[0051] Figure 6A This is the front view of the escapement component in its first state.

[0052] Figure 6B This is a front view of the escapement component in its second state.

[0053] Figure 6C This is the front view of the escapement component in its third state.

[0054] Figure 6D This is a front view of the escapement component in its fourth state.

[0055] Figure 7A This is a 3D view of the amplitude control component.

[0056] Figure 7B This is the front view of the amplitude control component in its first state.

[0057] Figure 7C This is the front view of the amplitude control component in its second state.

[0058] Figure 7D This is the front view of the amplitude control component in its third state.

[0059] Figures 8A-8CThe various stages of the pawl safety teeth and the second set of teeth are shown.

[0060] Figure 9A This is a perspective view of a torque-limiting clutch according to one embodiment.

[0061] Figure 9B This is a side view of the torque-limiting clutch.

[0062] Figure 9C This is a side sectional view of the torque-limiting clutch.

[0063] Figure 10A This is a 3D diagram of another example of a framework component.

[0064] Figure 10B yes Figure 10A A magnified view of a portion of the top area of ​​the frame component.

[0065] Figure 10C yes Figure 10A Another magnified view of a portion of the top area of ​​the frame component.

[0066] Figure 11 It is a top-view perspective view based on an example gear assembly.

[0067] Figure 12A This is a side view of the torque-limiting clutch assembly.

[0068] Figure 12B This is another side view of the torque-limiting clutch assembly.

[0069] Figure 12C This is an exploded perspective view of the torque-limiting clutch assembly.

[0070] Figure 12D This is a top view of the torque-limiting clutch assembly in its first state.

[0071] Figure 12E This is a top view of the torque-limiting clutch assembly in its second state.

[0072] Figure 12F This is a top view of the torque-limiting clutch assembly in its third state.

[0073] Figure 12G This is a bottom view of the interior of the torque-limiting clutch assembly.

[0074] Figure 12H This is a perspective view of a torque-limiting clutch according to one embodiment.

[0075] Figure 12I yes Figure 12H The diagram shown is an exploded perspective view of the torque-limiting clutch.

[0076] Figure 12J This is a cross-sectional view of a torque-limiting clutch according to one embodiment.

[0077] Figure 12K yes Figure 12J The diagram shown is an exploded perspective view of the torque-limiting clutch.

[0078] Figure 12L yes Figure 12J The image shows a perspective view of the upper side of the torque-limiting clutch.

[0079] Figure 12M yes Figure 12J The image shows a perspective view of the lower side of the torque-limiting clutch.

[0080] Figure 12N This is a perspective view of a torque-limiting clutch according to one embodiment.

[0081] Figure 12O yes Figure 12N The diagram shows a plan view of the torque-limiting clutch.

[0082] Figure 12P It is along Figure 12O The cross-sectional view of the torque-limiting clutch taken from plane II is shown.

[0083] Figure 12Q It is along Figure 12O The cross-sectional view of the torque-limiting clutch taken from plane II-II is shown.

[0084] Figure 13A This is a magnified view of the interface between the frame components and the swing arm.

[0085] Figure 13B This is another magnified view of the interface between the frame components and the swing arm.

[0086] Figure 14 It is a three-dimensional view of the seat frame in one orientation.

[0087] Figure 15A This is a first magnified view of the interface between the swing arm and the swing arm pivot.

[0088] Figure 15B This is a second enlarged view of the interface between the swing arm and the swing arm pivot.

[0089] Figure 15C This is an enlarged view of the swing arm removed from the swing arm pivot.

[0090] Figure 16A This is a perspective view of a wind-up child swing assembly according to an alternative to this disclosure.

[0091] Figure 16Byes Figure 16A The side view of the wind-up child swing assembly shown.

[0092] Figure 16C yes Figure 16A The perspective view shown is of a wind-up child swing assembly, illustrating the seat portion and base assembly of the seat assembly.

[0093] Figure 16D yes Figure 16B The perspective view shown is of a wind-up child swing assembly, illustrating the seat portion and base assembly of the seat assembly.

[0094] Figure 17 This is a top-down perspective view of the crank assembly.

[0095] Figure 18 It is a perspective view of the swing arm assembly and the seat assembly located above the swing arm assembly.

[0096] Figure 19 yes Figure 18 The first side view of the swing arm assembly and seat assembly shown, wherein the seat assembly is located on the swing arm assembly.

[0097] Figure 20 yes Figure 18 The second side view of the swing arm assembly and seat assembly shown, wherein the seat assembly is located on the swing arm assembly.

[0098] Figure 21A and Figure 21B This is a 3D view of the swing arm assembly.

[0099] Figure 21C yes Figure 21A and Figure 21B An exploded perspective view of the support hub of the swing arm assembly shown.

[0100] Figure 21D yes Figure 21C A bottom perspective view of a portion of the support hub shown.

[0101] Figure 22 yes Figure 18 The exploded perspective view of the seat assembly is shown.

[0102] Figure 23A and Figure 23B Each includes Figure 22 The diagram shows a top-view perspective and a bottom-view perspective of the support base for the seat assembly.

[0103] Figure 24A and Figure 24B These are perspective views of the connecting components and the support hub, respectively, according to the alternatives disclosed herein.

[0104] Figure 25 It is in the locked position. Figure 23B A cross-sectional view of a portion of the support base shown.

[0105] Figure 26 It is in the unlocked position. Figure 23B A cross-sectional view of a portion of the support base shown.

[0106] Figure 27 It is in the locked position. Figure 23B The diagram shows a cross-sectional view of a portion of the support base, in which the support hub is located.

[0107] Figures 28A-28L This is a three-dimensional diagram showing the assembly sequence of a gear assembly and a torque clutch, based on another example.

[0108] Figure 29 yes Figure 28L A sectional view.

[0109] Figures 30-33 It is a cross-sectional view of the control sub-component based on an example amplitude.

[0110] Figure 34 It is a 3D diagram based on an example frame component. Detailed Implementation

[0111] Some terms used in the following description are for convenience only and not for limitation. The words “front,” “back,” “up,” and “down” indicate directions of reference in the accompanying drawings. The words “inward” and “outward” refer to directions toward and away from the parts shown in the accompanying drawings. The list of items referring to “at least one of a, b, or c” (where a, b, and c represent listed items) refers to any combination of any one or more of items a, b, or c. The term includes the words specifically mentioned above, their derivatives, and words with similar meanings.

[0112] like Figures 1A-1C As shown, a spring-loaded oscillating assembly 10 is generally disclosed herein. (As...) Figure 2 , Figure 4B and Figure 5E As shown, the spring-loaded oscillating assembly 10 includes a swing arm assembly 12, which includes a swing arm 25 and a swing arm pivot 27 having a swing arm axis (X1). Figure 4A As shown, the pivot arm 27 typically includes a pivot housing 27a and at least one bearing 27b. For example (but not limited to), the at least one bearing 27b may include two bearings, a first bearing in the upper region of the pivot housing 27a and a second bearing in the lower region of the pivot housing 27a. The bottom of the pivot housing 27a may be supported by a portion of the frame assembly 35a (e.g., an upright frame member 35c), which will be described in more detail herein.

[0113] like Figures 5C-5D As shown and described in more detail herein, the pivot housing 27a may include an opening 27c configured to receive a portion of the pusher 90 (i.e., the first end 90a of the pusher 90). The pivot housing 27a is configured to support a rocker arm 25, and the rocker arm 25 pivots about the rocker arm pivot 27. The rocker arm 25 may include a first end 25a and a second end 25b, the first end being configured to engage with the rocker arm pivot 27 and the second end being configured to support the seat frame 15. A housing 26 may be provided to close the interface between the first end 25a of the rocker arm 25 and the rocker arm pivot 27.

[0114] The swing arm axis (X1) can be oriented in a non-horizontal direction or at an angle relative to the ground or to a horizontal plane (P1) along the x-axis. In one aspect, the swing arm axis (X1) can be oriented in a non-vertical direction or at an angle relative to a vertical plane (P2). The angle (θ1) between the swing arm axis (X1) and the horizontal plane (P1) is as follows: Figure 4B As shown. The swing arm axis (X1) can be at an angle of 30-70 degrees relative to the ground or horizontal plane (P1). Preferably, the swing arm axis (X1) can be at an angle of 40-60 degrees relative to the ground or horizontal plane (P1). More preferably, the swing arm axis (X1) can be at an angle of 45-55 degrees relative to the ground or horizontal plane (P1). In another example, the swing arm axis (X1) can be at an angle of 50 degrees relative to the ground or horizontal plane (P1). The relative orientation and angle of the swing arm axis (X1) are configured to maximize the potential energy of the spring-loaded oscillating assembly 10, thereby increasing its running time. Furthermore, the swing arm axis (X1) is arranged to minimize the footprint of the spring-loaded spring assembly 10.

[0115] The spring-loaded oscillating assembly 10 also includes a drive spring 60 having a drive spring axis (X3). The drive spring axis (X3) can be oriented in a non-vertical direction or in a direction angled relative to a vertical plane (P2) along the y-axis, and can be angled relative to the swing arm axis (X1). In one aspect, the drive spring axis (X3) can be oriented in a non-horizontal direction or in a direction angled relative to the ground or a horizontal plane (P1) along the x-axis. Those skilled in the art will recognize that the vertical plane (P2) is perpendicular to the horizontal plane (P1). The angle (θ3) between the drive spring axis (X3) and the vertical plane (P2) is as follows: Figure 4BAs shown. The drive spring axis (X3) can be at an angle of 5 to 20 degrees relative to the vertical plane (P2). Those skilled in the art will understand that, depending on the arrangement of any associated bevel gears, in another configuration, the drive spring axis (X3) can be at an angle greater than 20 degrees relative to the vertical plane (P2). Preferably, the drive spring axis (X3) can be at an angle of 5 to 15 degrees relative to the vertical plane (P2). More preferably, the drive spring axis (X3) can be at an angle of 5 to 10 degrees relative to the vertical plane (P2). In one example, the drive spring axis (X3) can be at an angle of 7 degrees relative to the vertical plane (P2). The orientation and angle of the drive spring axis (X3) can be selected to optimize the stability of the spring-loaded oscillating assembly 10 while also ensuring that the center of gravity of the spring-loaded oscillating assembly 10 is positioned relative to the base assembly 35b to minimize the risk of any accidental tipping.

[0116] The wind-up oscillating assembly 10 also includes an escapement assembly 70 having an escapement axis (X2). The escapement axis (X2) may be angled relative to the swing arm axis (X1). The escapement axis (X2) may be substantially parallel to the ground or a horizontal plane (P1). Alternatively, those skilled in the art will understand that the escapement axis (X2) may be angled relative to the ground or a horizontal plane (P1).

[0117] like Figure 2 , Figure 4B and Figure 5E As shown, the swing arm axis (X1), escapement axis (X2), and drive spring axis (X3) can be at an angle relative to each other. Figure 4B As shown, the swing arm axis (X1), escapement axis (X2), and drive spring axis (X3) can be angled relative to each other. In one embodiment, the relative angle between any one of the first, second, and / or third axes (X1, X2, X3) can be from 0 degrees to 90 degrees. Those skilled in the art will understand that these angles can vary depending on the specific configuration required for the clockwork spring assembly 10. Furthermore, in another embodiment, the first, second, and / or third axes (X1, X2, X3) can be arranged at any relative angle and can be arranged in multiple different planes.

[0118] Return to reference Figure 1A and Figure 1B In addition to the swing arm 25, the swing arm assembly 12 may also include an adjustment assembly 20 and a seat frame 15. The adjustment assembly 20 may be configured to adjust the tilt angle of the seat frame 15, and the adjustment assembly 20 may be released or engaged via a button, lever, or other actuation / adjustment feature. The seat frame 15 may be configured to be adjustable from 0 degrees (i.e., a plane) relative to the horizontal plane (in either the positive or negative direction) to a tilt of at least 20 to 30 degrees relative to the horizontal plane.

[0119] Unlike upper spring assemblies that require vertical space to support the drive spring, the spring-driven oscillating assembly 10 disclosed herein positions the drive spring 60 laterally adjacent to or on the side of the seat frame 15. Therefore, the drive spring 60 is not positioned above the seat frame 15.

[0120] The spring-loaded oscillating assembly 10 also includes a frame assembly 35a, a base assembly 35b, and an upright frame member 35c. The frame assembly 35a, including the upright frame member 35c and the base assembly 35b, may include a housing or enclosure that typically surrounds or encloses internal components (such as the drive spring 60).

[0121] Frame assembly 35a may include a support 37 at its lower end and a handle 36 at its upper end. Support 37 is configured to provide an additional stabilizing surface for contact with the ground. Support 37 may be formed as a protrusion large enough to accommodate a user's foot on its upper side, allowing the user to step on support 37 and stabilize the spring-loaded oscillating assembly 10 when the drive spring 60 is tightened via crank assembly 40. Support 37 may extend outward from the rest of frame assembly 35a. For example (but not limited), support 37 may extend outward from frame assembly 35a by at least 3 inches. In embodiments (but not limited), the height of support 37 may be less than 1 inch. Support 37 preferably extends from frame assembly 35a in a direction opposite to that of base assembly 35b.

[0122] The handle 36 may be configured as a lip, edge, or other type of recess formed on the frame assembly 35a. Those skilled in the art will understand that the handle 36 may also be formed on other areas of the spring-loaded oscillating assembly 10 besides the frame assembly 35a. The handle 36 is sized or constructed to accommodate a user's hand to provide additional support for the spring-loaded oscillating assembly 10 when the drive spring 60 is tightened. The handle 36 may also be used to lift or otherwise move the spring-loaded oscillating assembly 10. For example (but not limitingly), the handle 36 may have a depth of at least 1 inch, preferably at least 2 inches. The handle 36 is configured to allow the user to move the spring-loaded oscillating assembly 10 more easily and to improve the overall mobility of the spring-loaded oscillating assembly 10.

[0123] The base assembly 35b can be formed as two legs 39a, 39b extending from the upright frame member 35c, which is in Figure 1C As shown in the top view. In one example, the base assembly 35b may include two curved or bow-shaped legs 39a, 39b, which typically have a U-shaped or horseshoe-shaped profile. Figure 1CAs shown, the outline of the base assembly 35b may generally at least partially overlap with or fall within the outline or shape of the seat frame 15 (as shown at the ends of the legs 39a, 39b). Those skilled in the art will understand that the outline of the base assembly 35b may vary.

[0124] The spring-loaded oscillating assembly 10 also includes a crank assembly 40, which provides an interface for the user to apply motion or energy to the drive spring 60. The crank assembly 40 may typically be disposed on the frame assembly 35a. The crank assembly 40 may be located on the upper surface of the frame assembly 35a. Those skilled in the art will understand that the crank assembly 40 may be disposed on other portions or areas of the frame assembly 35a, or on any other portion of the spring-loaded oscillating assembly 10.

[0125] like Figure 3A and Figure 3B As shown, the crank assembly 40 may include a crank handle 44 configured to extend from the frame assembly 35a. The crank handle 44 provides input to the drive spring 60 regarding rotation about the crank pivot 46. The crank handle 44 can be configured to fold outward from the frame assembly 35a in a use state and can be configured to fold into a pocket 47 defined on the frame assembly 35a in a storage state. A handle 42 may be provided on the crank handle 44 and configured to be engaged by the user when the drive spring 60 is tightened.

[0126] An energy level indicator can be provided for the spring-loaded oscillating assembly 10. Figure 3A and Figure 3B One example illustrates an energy level indicator 120. In one example, the energy level indicator 120 may be a torque sensor and may be operatively arranged between the drive spring 60 and the crank assembly 40. The energy level indicator 120 may provide a marker, such as a meter, that displays the amount of energy stored by the drive spring 60. The user can quickly determine how much time is left to continue the oscillating motion and decide to further engage the crank assembly 40. The energy level indicator 120 may include a sensor or spring arranged in series with the drive spring 60. Those skilled in the art will understand that various configurations are possible for measuring the energy in the drive spring 60. Furthermore, the location and specific form of the energy level indicator 120 may vary.

[0127] like Figures 3C-3F As shown, various structures can be provided for the crank assembly 40. For example... Figure 3CAs shown, the arm 144 of the crank assembly 40 can be operated as a handle, rotating outward in the use or starting position (cranking position, rocking position), and can be eccentrically positioned relative to the middle portion of the frame. Figure 3D As shown, the arm 244 of the crank assembly 40 can be operated as a handle, which also rotates outward from the frame. Increasing the arm length allows for a greater input to the drive spring 60. Figure 3E As shown, the arm 344 of the crank assembly 40 can be radially outwardly translated for operation as a handle. Figure 3F As shown, the arm 444 of the crank assembly 40 may have a rotating portion 444a that is configured to be gripped by a user.

[0128] Figure 3G-Figure 3I Additional views of a crank assembly according to another example are provided. In one configuration, a tower cap 540 is provided, typically attached to the top of the frame assembly. The tower cap 540 may include an opening 542 configured to allow an arm 544 of the crank assembly 40 to extend through. The arm 544 (also referred to as a knob) may be configured to rotate to tighten the drive spring 60. The arm 544 may be configured to be biased by a spring or biasing element to a closed or inactive position, which may serve as a safety function. The tower cap 540 may snap-fit ​​onto the body of the frame assembly 35a. The tower cap 540 may include an inner wall 546 corresponding to the wall of the first housing 402 of the torque limiting clutch assembly 400 (in... Figures 12A-12G (As shown in more detail in the diagram and described in more detail herein), this creates a tight fit between the cap 540 and the first housing 402 with minimal rotational movement (e.g., torsion) between them. The inner wall 546 also facilitates alignment of the cap 540 with the clutch assembly 400 during assembly. For safety purposes and a cleaner aesthetic appearance, the tightening knob or arm 544 can be configured to pivot downwards to be flush with the cap 540.

[0129] like Figure 4A and Figure 4B As shown in detail, the spring-loaded oscillating assembly 10 also includes a tensioning mechanism 50 disposed between the crank assembly 40 and the drive spring 60. The tensioning mechanism 50 is typically configured to provide an interface between the crank assembly 40 and the drive spring 60, such that a user-generated starting input (cranking input) is converted into tensioning of the drive spring 60. Figure 4B As shown, the tightening mechanism 50 may include a tightening shaft 55, which is connected to the crank assembly 40 at its first end 55a. Figures 4D-4EAs shown, the tensioning shaft 55 can extend inside the drive spring 60 and can be connected to the quiet wind spool 105 at its second end 55b. Alternative arrangements of the tensioning shaft 55 may be provided.

[0130] For reference Figure 4A and Figure 4B The tightening mechanism 50 shown includes an attachment plate 52 that can be attached to a first tightening gear 54, which is disposed around a tightening shaft 55 and configured to engage with a second tightening gear 56. In one example, the first tightening gear 54 and the second tightening gear 56 can be bevel gears. The second tightening gear 56 can be connected to the escapement assembly 70. In one configuration, the second tightening gear 56 is configured to rotatably drive the escapement shaft 75 (e.g., Figures 5A-5B (As shown). Alternative arrangements can be provided to transfer motion or energy from the drive spring 60 to the escapement assembly 70.

[0131] like Figures 4A-4E As shown, the drive spring 60 may include a first end 60a connected to the attachment plate 52 and a second end 60b connected to the silent tensioning spool 105, such that rotation of the tensioning spool 55 causes the drive spring 60 to be tensioned via the silent tensioning spool 105.

[0132] like Figures 4C-4E As shown, a power tube 66 is provided to center the drive spring 60 and prevent the drive spring 60 from snaking or otherwise tangling during tightening. A first bearing 64 can be provided to support both the tightening shaft 55 and the power tube 66. A second bearing 106 can be provided between a portion of the upright frame member 35c and the tightening shaft 55.

[0133] The silent tensioning spool 105 may define a connector 62 that connects to the second end 60b of the drive spring 60. Clockwise rotation of the tensioning spool 55 causes the silent tensioning spool 105 to rotate, which tensions the drive spring 60 via the connector 62. A connector 108 may be provided to connect the tensioning spool 55 to the silent tensioning spool 105. The connector 108 may include a retaining screw, a knurled connector, or any other attachment structure that connects the tensioning spool 55 to the silent tensioning spool 105.

[0134] A slip clutch spring 100 may also be provided, which is typically configured to prevent rotation of the tensioning shaft 55 in the non-tensioning direction. Rotation of the tensioning shaft 55 in the tensioning direction (e.g., clockwise as shown in the figure) causes the slip clutch spring 100 to open and slide. Conversely, rotation of the tensioning shaft 55 in the non-tensioning direction causes the slip clutch spring 100 to tighten around the silent tensioning spool 105. When the user stops tightening the tensioning shaft 55, a counterclockwise force on the silent tensioning spool 105 causes the slip clutch spring 100 to tighten. Whenever the drive spring 60 is in the tightened position, whether during tightening or during operation of the oscillating mechanism, the slip clutch spring 100 prevents energy from being released from the drive spring 60. Therefore, in the event of a mechanical failure in the escapement mechanism, the tensioning crank (i.e., knob, spring, etc.) will not rotate uncontrollably and release energy, providing a safety feature and preventing injury to the user. Figures 4C-4E As shown, a bracket 35d can be fixed to the upright frame member 35c. Therefore, the rotational torque of the drive spring 60 is resisted by the attachment of the sliding clutch spring 100 to the pin 102, which is connected to either the bracket 35d or the upright frame member 35c. This is for illustrative purposes only. Figure 4E A drive spring 60 is shown pulling upwards from the bottom of the frame. (See diagram.) Figure 4F As shown, one end 100' of the sliding clutch spring 100 can be fixed to a portion of the upright frame member 35c or the bracket 35d.

[0135] The escapement assembly 70 is configured to control the release of energy from the drive spring 60 and is configured to provide discrete and controlled bursts of energy to drive the seat frame 15. The escapement assembly 70 is also configured to prevent accidental release of the drive spring 60. The escapement assembly 70 may include an escape gear 74 comprising a plurality of teeth 74a and configured to be driven via a connection to a second tightening gear 56 via an escape shaft 75. The escape gear 74 may be fixed to the escape shaft 75. U.S. Patent 6,283,870 discloses such an escapement assembly, which is incorporated herein by reference as if fully set forth herein.

[0136] Figures 5A-5B The escapement assembly 70, as well as the drop plate 85 and amplitude control lever 95, are shown in more detail below. The escapement assembly 70 may also include a bracket 72, a pawl 76, an actuator 78, a dog 80, and a pusher 90, each of which will be described in more detail below.

[0137] Pad 76 is pivotally supported at pad pivot 76c. In one aspect, pad pivot 76c can be pivotally attached to a portion of frame assembly 35a (e.g., upright frame member 35c). The force of drive spring 60 biases escape gear 74 to rotate in the drive direction (e.g., clockwise). However, in the initial state, pad teeth 76a engage with teeth 74a of escape gear 74 to prevent escape gear 74 from rotating clockwise and also to prevent drive spring 60 from disengaging at the same time. The clockwise bias of escape gear 74 due to the force of drive spring 60 causes escape gear 74 to exert a force on pad 76, which keeps pad teeth 76a engaged with escape gear 74. Without this engagement, pad counterweight 76e will cause pad 76 to rotate clockwise due to gravity, thereby disengaging from escape gear 74.

[0138] The carrier 72 is connected to the escapement shaft 75 and configured to rotate about the escapement axis (X2). The carrier 72 is also connected to a first end 90a of the pusher 90. The second end 90b of the pusher 90 is connected to the swing arm assembly 12. When the escapement gear 74 is driven via the connection of the escapement shaft 75 to the second tension gear 56, the carrier 72 pushes the swing arm assembly 12 to rotate during the powered stroke and is pushed by the swing arm assembly 12 during the non-powered stroke. The swing arm assembly 12 is configured to swing in a pendulum-like motion. During the powered stroke, energy from the drive spring 60 is transferred through the escapement assembly 70 to drive the swing arm assembly 12 in a first direction. After reaching the end of this stroke or the end of the swing, inertia drives the swing arm assembly 12 in a second direction opposite to the first direction. This process continues as long as there is residual stored energy from the tension of the drive spring 60.

[0139] The clamp 80 is pivotally fixed to the bracket 72 at the clamp pivot 80c, such that when the bracket 72 rotates with the swing arm assembly 12 about the escapement axis (X2), the clamp 80 moves together with the bracket 72. The shape of the clamp 80 and the construction of the clamp teeth 80a and 80d cause the clamp counterweight to cause the clamp 80 to rotate clockwise about the clamp pivot 80c, so that the clamp teeth 80a disengage from the teeth 74a of the escapement gear 74.

[0140] Actuator 78 is coupled to the escapement shaft and configured to rotate about the escapement axis (X2). Actuator 78 is configured to selectively engage with clamp 80 via clamp engagement surface 78b, which engages with clamp control arm 80b. Actuator 78 is also configured to selectively engage with pawl 76 via pawl engagement surface 78a, which engages with pawl control arm 76b. This selective engagement controls the movement of clamp 80 and pawl 76. Actuator 78 also includes actuator counterweight 78c, which is positioned such that actuator 78 is biased clockwise when not engaged by pawl 76 or clamp 80.

[0141] The pusher 90 operatively connects the escapement assembly 70 to the swing arm assembly 12. The pusher 90 is typically configured to convert rotation from the escapement assembly 70 about the escapement axis (X2) into oscillation or swinging of the swing arm 25 about the swing arm axis (X1). In one example, the pusher 90 may be a rigid wire. Those skilled in the art will understand that the pusher 90 may include a pair of bevel gears or any type of mechanical linkage. For example, in… Figure 13A and Figure 13B In the illustrated embodiment, the swing arm pivot 127 may include a first bevel gear 190a. A second bevel gear 190b may be configured to drivably engage with the first bevel gear 190a. The second bevel gear 190b may be connected to the bracket 72 or another part of the frame assembly. In one configuration, the second bevel gear 190b may be integrally formed with the bracket 72. The drive connection between the bevel gears 190a and 190b transmits oscillating or swinging motion to the swing arm 25 and otherwise provides the same function as the pusher 90 and its associated components. The configuration including bevel gears may be configured to provide a 1:1 rotational motion ratio between the first bevel gear 190a and the second bevel gear 190b, thereby providing a more efficient swinging configuration.

[0142] The pusher 90 includes a first end 90a connected to the bracket 72 and a second end 90b connected to the swing arm pivot 27. The pusher 90 can be configured to rotate and move in multiple degrees of freedom. The first end 90a and the second end 90b of the pusher 90 can be held within the bracket 72 and the swing arm pivot 27 with a predetermined amount of slack or predetermined tolerance, such that when the pusher 90 is driven back and forth to perform a swinging motion, there can be some predetermined amount of play.

[0143] like Figure 5C and Figure 5D As shown, the first end 90a and the second end 90b of the pusher 90 may include portions that are bent or angled relative to the body of the pusher 90. For example, the first end 90a may be bent upwards, and the second end 90b may be bent downwards. The first end 90a is configured to be held in an opening 72a of the bracket 72. The opening 72a in the bracket 72 may include a through-hole and at least one tapered region adjacent to the through-hole. The opening 27c in the pivot housing 27a may also include a through-hole and at least one tapered region adjacent to the through-hole. By not rigidly fixing the ends 90a and 90b relative to the bracket 72 and the pivot housing 27a, the pusher 90 is allowed to swing more freely, which increases the swing time.

[0144] Figures 5E-5H Other aspects of the structure of the pusher 90 are shown. (Reference) Figure 5EEnergy needs to be transferred from the escapement axis (X2) to the swing arm pivot axis (X1). These axes can be arranged non-parallel to each other, and in one configuration, they can be at an angle of 40 to 60 degrees relative to each other. A pusher 90 is arranged between the bracket 72 and the pivot housing 27a to provide improved bending strength for torque transmission. The connection between the pusher 90 and both the bracket 72 on the escapement axis (X2) and the pivot housing 27a on the swing arm pivot axis (X1) is configured to allow the pusher 90 to self-align with the corresponding connection holes 72a on the bracket 72 and 27c on the pivot housing 27a. Those skilled in the art will understand that the connection between the pusher 90 and the pivot housing 27a is similar. The outlines of the ends 90a, 90b of the pusher 90 can be circular or cylindrical. Figure 5C and Figure 5D As shown, the arcuate contact surface provided within the connection hole 27c of the pivot housing 27a can provide an engagement surface for the first end 90a of the pusher 90. Although the element 90 is referred to as the pusher 90, those skilled in the art will understand that any linkage or connection configured to apply a thrust or pull (i.e., tension) can be provided between the bracket 72 and the pivot housing 27a.

[0145] Figures 6A-6D Various states of the spring-loaded oscillating assembly 10 are shown. Figure 6A It generally shows the non-dynamic phase. Figure 6B It illustrates the transition phase from the non-powered phase to the powered phase. Figure 6C It shows the power phase, while Figure 6D This illustrates the transition from the dynamic phase to the non-dynamic phase.

[0146] Figure 6A The escapement assembly 70 is shown in its intermediate position (i.e., the non-powered phase) when the drive spring 60 is fully tightened. Figure 6A As shown, the pawl tooth 76a engages with the tooth 74a of the escape gear 74 to prevent the escape gear 74 from rotating clockwise (due to energy from the tightened drive spring 60) and also to prevent the drive spring 60 from accidentally and suddenly releasing. In this state, the clamp engagement surface 78b on the actuator 78 and the clamp control arm 80b disengage from each other. Figure 6A The non-powered state is generally shown, in which the clamp 80 is fully disengaged, the pawl 76 is engaged, and rotation is configured to occur counterclockwise for the actuator 72.

[0147] Figure 6BThis illustrates that, as the swing arm assembly 12 is initially pushed by the user, the swing arm assembly 12 and the bracket 72 rotate counterclockwise. This movement is opposite to the spring force from the drive spring 60, which normally drives the swing arm assembly 12 to rotate clockwise. Figure 6B As shown, the inertia from the initial push causes the swing arm assembly 12 to move counterclockwise, driving the pusher 90, which in turn drives the bracket 72 to begin rotating counterclockwise. This movement of the bracket 72 also drives the clamp 80 counterclockwise. The counterclockwise movement of the clamp 80 causes the clamp control arm 80b to engage the clamp engagement surface 78b of the actuator 78. This engagement causes the clamp 80 to rotate about the clamp pivot 80c, and the clamp teeth 80a are driven to engage with the teeth 74a of the escapement gear 74. The inertia from the swing arm assembly 12 is applied to the clamp teeth 80a, such that the torque from the drive spring 60 is now located between the seat frame (i.e., the upright frame member 35c) at one end and the clamp 80 at the other end. Since the clamp 80 is connected to the bracket 72, any movement applied to the bracket 72 from the swing arm assembly 12 also drives the clamp 80. The engaged clamp 80 then rotates the escapement gear 74 counterclockwise, releasing the force on the pawl 76.

[0148] Due to the counterweight 76e, the pawl 76 is biased by gravity and then rotates clockwise, disengaging from the escapement gear 74. During this phase, the torque force exerted on the pawl 76 by the escapement gear 74 is released, and the pawl 76 is temporarily disengaged from the escapement gear 74. The clamp 80 (which is now engaged with the escapement gear 74) transmits the spring torque from the escapement gear 74 to the carrier 72, thereby providing energy to drive the pendulum arm assembly in a counterclockwise pendulum motion.

[0149] Figure 6C The power stroke phase is shown, in which the swing arm assembly 12 rotates clockwise. During this phase, the drive spring 60 applies a force that drives the escape gear 74 clockwise. During this phase, the pawl 76 disengages from the escape gear 74, and the clamp 80 engages with the escape gear 74. The escape gear 74 is configured to drive the clamp 80 to rotate clockwise, and the clamp 80 then drives the carrier 72 clockwise. The carrier 72, fixed to the pusher 90, then applies this driving motion to the swing arm assembly 12 via the pusher 90, thereby powering the swing motion. During this phase, the pawl 76 remains disengaged, which is necessary for the escape gear 74 to rotate clockwise. As the clamp 80 rotates clockwise, it remains in contact with the actuator 78. Based on this engagement, the clamp 80 is configured to control the timing of the clockwise rotation of the actuator 78. The actuator 78 is typically biased to rotate clockwise due to gravity (i.e., due to the actuator counterweight 78c), and the clamp 80 controls this rotation until the actuator 78 engages with the pawl 76.

[0150] Reference Figure 6D When the oscillating assembly transitions from the powered phase to the unpowered phase, actuator 78 engages pawl 76 with escape gear 74 (i.e., via engagement between pawl engagement surface 78a and pawl control arm 76b). During this phase, carrier 72 continues to rotate clockwise, releasing clamp 80 from engagement with actuator 78 (i.e., disengaging clamp control arm 80b from clamp engagement surface 78b), allowing clamp 80 to rotate clockwise about clamp pivot 80c to disengage from escape gear 74. After actuator 78 causes pawl 76 to fall into the next tooth 74a of escape gear 74, torque is transmitted to pawl tooth 76a as it engages with escape gear 74. During this step, clamp 80 disengages from escape gear 74 due to gravity (i.e., due to the shape of the clamp and its pivoting position). Therefore, power is no longer supplied to the rocker arm assembly 12 via the drive spring 60, even though the rocker arm assembly 12 is still rotating clockwise. Shortly after the pawl tooth 76a engages with the escape gear 74, the pawl tooth 76a is no longer held in place by the actuator 78. However, the pawl 76a controls the position of the actuator 78 and prevents the actuator 78 from rotating further clockwise due to gravity. The rocker arm assembly 12 continues to swing clockwise for the remainder of the power stroke, and then the rocker arm assembly 12 begins to travel counterclockwise. This occurs after the power stroke ends and the momentum of the rocker arm assembly 12 stops.

[0151] When the swing assembly transitions back to the fully unpowered stage, the bracket 72 and the swing arm assembly 12 begin to travel counterclockwise, and the clamp 80 engages with the actuator 78, which causes the clamp tooth 80a to rotate counterclockwise around the clamp pivot 80c and engage with the next tooth of the escapement gear 74. After this step, the powered stroke is repeated.

[0152] refer to Figures 7A-7D An amplitude control component 92 can be configured, which typically controls the swing amplitude. The amplitude control component 92 may include: a drop plate 85 configured to selectively limit the travel of the clamp 80; and an amplitude control lever 95 configured to selectively adjust the position of the drop plate 85. The amplitude control lever 95 can be configured to set a limit to the swing amplitude. If the actual swing amplitude begins to exceed the limit set by the amplitude control lever 95, the amplitude control component 92 prevents the escapement assembly 70 from releasing additional energy from the drive spring 60 to the swing arm assembly 12.

[0153] The drop plate 85 may include: an engagement portion 85a configured to engage with a portion of the clamp 80 via a control edge 85d; a recess 85b adjacent to the control edge 85d; and an attachment 85c configured to engage with a portion of the amplitude control lever 95. A user can manually engage the amplitude control lever 95 to adjust the swing amplitude. The amplitude control lever 95 may include a first stop 95a and a second stop 95b spaced apart from each other. Each stop 95a, 95b may be configured to engage with the attachment 85c of the drop plate 85. In one example, the second stop 95b may be formed on a portion of the frame or housing.

[0154] The drop plate 85 is configured to rotate with the bracket 72 via frictional engagement between the engagement portion 85a of the drop plate 85 and the clamp control arm 80b. The rotation of the drop plate 85 is limited by a first stop 95a and a second stop 95b. If the actual swing amplitude is within a predetermined limit set by the amplitude control assembly 92, the clamp 80 remains engaged with the engagement portion 85a of the drop plate 85, thereby preventing the drop plate 85 from falling. The drop plate 85 includes a slot 85e through which the escapement shaft 75 is configured to extend, allowing the drop plate 85 to move or fall. A larger swing amplitude is allowed when the amplitude control lever 95 rotates upward or counterclockwise. The attachment 85c of the drop plate 85 is allowed to rotate a greater distance between the stops 95a and 95b, such that when the swing arm assembly 12 swings higher, the clamp control arm 80b remains in contact with the engagement portion 85a of the drop plate 85 for a longer period. Figure 7B and Figure 7C As shown, the drop plate 85 will not fall as long as the joint portion 85a of the drop plate 85 is engaged with the clamp control arm 80b.

[0155] Figure 7D This illustrates situations or stages where the actual swing amplitude exceeds a predetermined or set limit. For example... Figure 7D As shown, the drop plate 85 descends such that the clamp control arm 80b engages beyond the control edge 85d and is accommodated within a recess 85b adjacent to the control edge 85d. The control edge 85d of the drop plate 85 drives the clamp tooth 80a into the same tooth 74a previously engaged with the escape gear 74, rather than into the next tooth 74a on the escape gear 74. Thus, the control edge 85d drives the clamp tooth 80a to engage with the escape gear 74 before the actuator 78 further drives the clamp tooth 80a back into engagement with the escape gear 74. Furthermore, the control edge 85d of the drop plate 85 is angled, thereby allowing the clamp control arm 80b to push the drop plate 85 upward during counterclockwise swinging.

[0156] If the swing arm assembly 12 swings beyond a predetermined amplitude limit, the drop plate 85 falls downwards, causing the clamp tooth 80a to engage with the escapement gear 74, and then rises. This process is repeated for each swing cycle until the amplitude falls below the predetermined limit. As the swing arm assembly 12 travels clockwise (i.e., in the direction in which the drive spring 60 releases its energy), the drop plate 85 falls downwards, and the clamp control arm 80b is accommodated in the recess 85b of the drop plate 85.

[0157] Various states of the pawl tooth 76a and clamp tooth 80a are shown relative to the escapement gear 74 (more specifically, relative to the first set of teeth 74a on the escapement gear 74). The pawl safety tooth 76d and the clamp safety tooth 80d are also shown. The second set of teeth 74b on the escapement gear 74 is configured to engage with the pawl safety tooth 76d and the clamp safety tooth 80d. The pawl safety tooth 76d and the clamp safety tooth 80d are generally configured to engage with corresponding teeth in the second set of teeth 74b on the escapement gear 74 when the drive spring 60 is tightened, to prevent the drive spring 60 from accidentally disengaging. The clamp safety tooth 80d can be configured to prevent the clamp 80 from falling too far during oscillation when it disengages from the escapement gear 74.

[0158] Figures 8A-8COther features of the pawl safety tooth 76d are shown. Those skilled in the art will understand that the description of the function of the pawl safety tooth 76d provided herein also applies to the clamp safety tooth 80d. For illustrative purposes, a portion of the pawl 76 supporting the pawl safety tooth 76d is not shown to illustrate the engagement between the pawl safety tooth 76d and the second set of teeth 74b on the escapement gear 74. During normal operation, when the pawl teeth 76a and the clamp teeth 80a are regularly driven inward and outward relative to the escapement gear 74, the pawl safety teeth 76d and the clamp safety teeth 80d typically follow the corresponding pawl teeth 76a and clamp teeth 80a. In the event of a potential failure of one of the components (e.g., breakage of the clamp tooth 80a), it is desirable for the pawl 76 to re-engage to prevent high torque from the drive spring 60 in the escapement gear 74, regardless of the actuator position and the escapement mechanism. If the clamp tooth 80a is inoperable, the clamp 80 cannot prevent any relative movement of the escape gear 74, and there is a risk that a high, uncontrolled torque from the drive spring 60 will be released onto the escape gear 74. In this case, the second set of teeth 74b, which is beginning to rotate at high speed, is configured to engage the pawl safety tooth 76d at high speed (rather than the usual counterclockwise force generated by gravity). This forces the pawl tooth 76a down into the gap between the first set of teeth 74a, completely independent of any movement of the actuator 78 that normally controls the movement of the pawl 76. The pawl tooth 76a is then driven toward the escape gear 74 with considerable energy and momentum. In this state, the escape gear 74 rotates at high speed in a clockwise direction. The engagement of the pawl tooth 76a with the first set of teeth 74a stops the gear rotation. This same type of configuration will also occur if the pawl tooth 76a is damaged or otherwise fails, and the clamp safety tooth 80d must stop the uncontrolled rotation of the escape gear 74.

[0159] Another example of an amplitude control component is in Figures 30-33 As shown in the image.

[0160] As an additional feature, a torque-limiting clutch can also be implemented in conjunction with the spring-loaded oscillating assembly 10, which is configured to prevent the user from tightening the drive spring 60 beyond a predetermined torque limit. The torque-limiting clutch can also be configured to slip if tightened in the opposite or non-tightening direction.

[0161] Specific reference Figures 9A-9C A torque-limiting clutch can be configured to prevent damage caused by over-tightening. The silent tensioning spool 105 can be divided into an upper part 105a and a lower part 105b to provide a torque-limiting configuration for the drive spring 60. During tensioning, torque is transmitted from the lower part 105b to the upper part 105a via the torque clutch spring 900.

[0162] The torque clutch spring 900 is configured such that its inner diameter is smaller than the outer diameter of the silent tensioning spool 105 before being assembled onto it. The torque clutch spring 900 is assembled onto the upper portion 105a and lower portion 105b of the silent tensioning spool 105 by temporarily enlarging its inner diameter. This is achieved by applying a torque force to the torque clutch spring 900. Once assembled onto the silent tensioning spool 105, the torque force is removed, and the torque spring 900 clamps the upper portion 105a and lower portion 105b of the silent tensioning spool 105. This clamping of the torque clutch spring 900 onto the silent spool portion 105 allows torque to be transmitted from the lower portion 105b to the upper portion 105a.

[0163] During tightening, the torque from the tightening shaft 55 causes the lower part 105b to rotate. This torque is then transmitted to the upper part 105a, and the rotation of the upper part 105a tightens the drive spring 60. The tightening direction of the coil of the torque clutch spring 900 is such that when the tightening torque is transmitted, the coil of the torque clutch spring 900 is configured to slip at a given or predetermined torque. However, when the torque of the fully tightened drive spring 60 is resisted, the torque clutch spring 900 locks the upper part 105a of the silent tightening spool 105 to the lower part 105b. With the lower part 105b connected to the pin 102, the torque is further resisted by the slip clutch spring 100.

[0164] Those skilled in the art will understand that various modifications can be made to the spring-loaded oscillating assembly. For example, such as Figure 10B , Figure 10C and Figure 11As shown, in one configuration, a gear assembly 300 may be included to facilitate easier tightening of the oscillating device. The gear assembly 300 may include multiple gears. For example, a crank gear 302 may be connected to a shaft 140, which is connected to a crank assembly 40. In one example, the crank gear 302 may directly engage with a spring gear 306. In one example, a idling or intermediate gear 304 may be arranged between the crank gear 302 and the spring gear 306. The spring gear 306 may be rotatably fixed to the tightening shaft 55. The idling gear 304 may be provided to maintain the rotation of user input / rotation and spring tightening. The gear assembly 300 reduces the force required by the user to apply to the crank assembly 40 and also allows the crank assembly 40 to be centered relative to the housing. Those skilled in the art will understand that the crank assembly 40 does not need to be centered and can be located in various positions. The shaft 140 connected to the crank assembly 40 may typically have a more centrally located axis of rotation, while the axis of rotation of the tightening shaft 55 may be offset from the axis of rotation of the shaft 140. Although a particular gear configuration is shown, those skilled in the art will understand that various gear configurations can be used that make the oscillating device easier to tighten and position the crank assembly 40 in a more desirable position within the housing for purposes of stability and weight distribution. Figures 28A-29 Another exemplary embodiment of the gear assembly is shown.

[0165] The torque limiting clutch assembly 400 can also be set, such as... Figures 12A-12G As shown in more detail, the torque-limiting clutch assembly 400 may include a first housing 402 configured to support a portion of the crank assembly 40 (e.g., handle 42). The first housing 402 may be considered an upper housing or upper portion. The first housing 402 may include clutch drive teeth 402a. A second housing 406 may be provided, which may serve as a cover or lower portion of the torque-limiting clutch assembly 400. In some embodiments, the second housing 406 may be omitted.

[0166] A clutch hub 404 is also provided, configured to interact or engage with the first housing 402, and more specifically, with the clutch drive tooth 402a. The clutch hub 404 can be rotatably locked to the crank assembly 40. The clutch hub 404 may include at least one pawl 404a. In one example, at least one pawl 404a may include two pawls. Pawl 404a may include at least one pawl tooth 404b, which may be configured to selectively engage with the clutch drive tooth 402a. The clutch hub 404 may also include a biasing element 404c, which is configured to pivot outwardly or drive the pawl 404a such that the pawl tooth 404b engages with the clutch drive tooth 402a. In one example, the biasing element 404c may include a spring. A pivoting connector 404d may be provided at one end of at least one pawl 404a to attach the pawl 404a to the body of the clutch hub 404.

[0167] Torque is applied to the first housing 402, causing the clutch drive tooth 402a to engage with the pawl tooth 404b. The pawl 404a is configured to be driven clockwise through the contact between the clutch drive tooth 402a and the pawl tooth 404b. Torque is thus transmitted from the crank assembly 40 to the drive spring 60. The pawl 404a is normally biased radially outward by a biasing element 404c. At a given or predetermined torque, the force of the biasing element 404c is overcome by the tightening torque applied to the crank assembly 40. When this occurs, the pawl 404a rotates clockwise, disengaging the pawl tooth 404b from the clutch drive tooth 402a. Therefore, no torque is transmitted from the crank assembly 40 to the drive spring 60. This prevents over-tightening of the system, which could damage components of the crank assembly 40, the drive spring 60, and related components.

[0168] like Figure 12D and Figure 12E As shown, the arrow indicates the tightening torque applied by the user. During this state, the pawl tooth 404b and the clutch drive tooth 402a engage. Figure 12F As shown, when the user applies excessive torque to the crank assembly 40, the pawl tooth 404b and the clutch drive tooth 402a disengage. In this situation, because the torque-limiting clutch assembly 400 disengages, torque is not transmitted from the crank assembly 40 to the drive spring 60. The torque-limiting clutch assembly 400 is configured to ensure that the torque or input applied to the spring-loaded oscillating assembly does not exceed a predetermined amount of torque. Figure 12GAs shown in more detail, the first housing 402 also defines a plurality of secondary teeth 404e, which are configured to allow the nose of the pawl 404a to pass over the secondary teeth 404e and produce an audible noise of clutch disengagement due to excessive input torque input to the system. The pawl teeth 404b are configured to engage the clutch drive teeth 402a as the first housing 402 and the clutch hub 404 continue to rotate within a predetermined circumferential range (e.g., 180 degrees).

[0169] Figure 12H and Figure 12I An alternative to the torque limiting clutch 400' according to one embodiment of the present disclosure is shown. The torque limiting clutch 400' can be implemented in conjunction with the spring-loaded oscillating assembly 10 to prevent the user from tightening the drive spring 60 beyond a predetermined torque limit. The torque limiting clutch 400' is located between the input shaft 402' and the output shaft 404'. The input shaft 402' is operatively connected to the crank assembly 40, and the output shaft 404' is operatively connected to the drive spring 60. The torque limiting clutch 400' may also include a cap 406', a spool 408', and a spring 410'. The cap 406' is fixed to the input shaft 402', and the spool 408' is fixed to the output shaft 404'. The cap 406' and the spool 408' are clamped together by the spring 410' and can slide relative to each other when friction is overcome. Sliding between the cap 406' and the spool 408' prevents the drive spring 60 from being over-tightened.

[0170] Figures 12J-12M An alternative to the torque limiting clutch assembly 420 according to one embodiment of the present disclosure is shown. Figures 12K-12M The operation of the torque limiting clutch assembly 420 shown is similar to... Figures 12A-12G The torque limiting clutch assembly 400 shown requires fewer parts, which reduces the size and cost of the torque limiting clutch assembly 420 and also reduces the likelihood of mechanical problems and improper assembly. The torque limiting clutch assembly 420 may include an input hub 422 and an output hub 424. The output hub 424 can be rotatably locked to the shaft 140. The input hub 422 can be considered as the upper part and may support a portion of the crank assembly 40 (e.g., handle 42). The input hub 422 may include at least one engagement member 426 to engage with at least one protrusion 428 of the output hub 424. This at least one engagement member 426 may be, for example, a resilient material (e.g., a spring claw 430 with an engagement portion 432), such as an engagement hole or engagement surface, configured to engage with at least one protrusion 428 of the output hub 424.

[0171] The input hub 422 can be rotatably locked to the crank assembly 40. The output hub 424 can be located within the lower portion of the input hub 422. At least one engagement 426 of the input hub 422 can be biased to engage with at least one protrusion 428 of the output hub 424. A torque applied to the input hub 422 causes at least one engagement 426 to engage with at least one protrusion 428. The torque is thus transmitted from the crank assembly 40 to the drive spring 60. At a given or predetermined torque, the force on the engagement 426 is overcome by the tightening torque applied to the crank assembly 40. When this occurs, the protrusion 428 slides off or disengages from the engagement 426 to prevent torque from being transmitted from the crank assembly 40 to the drive spring 60. This prevents over-tightening of the drive spring 60, which could damage components of the crank assembly 40, the drive spring 60, and related components.

[0172] Figures 12J-12M An input hub 422 with three couplings 426 and an output hub 424 with three protrusions 428 are shown; however, those skilled in the art will recognize that other variations in the number of couplings 426 and protrusions 428 can be utilized within the scope of this disclosure. Furthermore, those skilled in the art will recognize that the positions of at least one coupling 426 and at least one protrusion 428 can be reversed, such that at least one protrusion 428 is located on the input hub 422, while at least one coupling 426 is located on the output hub 424.

[0173] Figures 12N-12Q An alternative to a torque-limiting clutch assembly 440 according to one embodiment of the present disclosure is shown. The torque-limiting clutch assembly 440 may include an input hub 442 and an output hub 448. The output hub 442 may be rotatably locked to a shaft 140. The input hub 442 may include an upper portion 444 and a lower portion 446. The upper portion 444 may support a portion of a crank assembly 40 (e.g., a handlebar 42). The output hub 448 may be located below the upper portion 444 of the input hub 442. The output hub 448 may include an upper portion 450 and a lower portion 452. In one example, the upper portion 450 and the lower portion 452 of the output hub 448 may be located within the upper portion 444 and the lower portion 446 of the input hub 442.

[0174] The input hub 442 may include at least one engagement member 454 having an engagement surface 455 for engaging at least one protrusion 456 of the output hub 448. The at least one engagement member 454 may be pivotally attached, for example, to the input hub 442 or a resilient portion of the input hub 442. A spring 458 may be attached to the at least one engagement member 454 to bias the engagement member 454 inward toward the output hub 448. In one example, the input hub 442 includes two engagement members 454, the output hub 444 includes two engaging protrusions 456, and the spring 458 biases the engagement surface 455 of each engagement member 454 toward engagement with the protrusion 456.

[0175] The input hub 442 can be rotatably locked to the crank assembly 40. Torque applied to the input hub 442 causes the engagement surface 455 of at least one coupling 454 to engage with at least one protrusion 456. Torque is thus transmitted from the crank assembly 40 to the drive spring 60. At a given or predetermined torque, the biasing force of the coupling 454 is overcome by the tightening torque applied to the crank assembly 40. When this occurs, the protrusion 456 slides off or disengages from the engagement surface 455 of the coupling 454 to prevent torque transmission from the crank assembly 40 to the drive spring 60. This prevents over-tightening of the drive spring 60, which could damage components of the crank assembly 40, the drive spring 60, and related components.

[0176] Figures 12N-12Q An input hub 442 with two engagement members 454 and an output hub 448 with two protrusions 456 are shown; however, those skilled in the art will recognize that other variations in the number of engagement members 454 and protrusions 456 can be utilized within the scope of this disclosure. Furthermore, those skilled in the art will recognize that the positions of at least one engagement member 454 and at least one protrusion 456 can be reversed, such that at least one protrusion 456 is located on the input hub 442, while at least one engagement member 454 is located on the output hub 448. Another exemplary embodiment of the torque clutch is shown in... Figures 28A-29 As shown in the image.

[0177] like Figure 14 As shown, a swing arm hub 22 can be provided, which is connected to a swing arm 25 and a first end 25a and a second end 25b of the swing arm 25. An tilt axis (AR) is defined based on the angle of the adjustment assembly 20, and a seat rotation axis (ASR) is defined, which extends approximately perpendicular to the swing arm hub 22. Figure 14The diagram also shows a scatter plot of the center of gravity (COG). The COG is typically determined based on the weight distribution of the frame itself and the presence of the occupant or child in the swing mechanism. Overall, the wind-up swing assembly 10 offers an improved configuration that is easier to use than other known swing assemblies, provides longer swing duration, smoother swing, and more predictable amplitude. The tilt axis (AR) and seat rotation axis (ASR) intersect each other and both extend approximately through the center of gravity (COG). Figure 14 A schematic diagram of a occupant is shown. Those skilled in the art will understand that soft materials or seat components can be incorporated to support the occupant. The occupant's weight is typically located in an area of ​​the seat frame 15 where the center of gravity (COG) intersects the tilt axis (AR) and the seat rotation axis (ASR). Those skilled in the art will understand that various design considerations, such as the shape of the seat frame 15, the length / angle of the swing arm 25, the profile of the soft materials, etc., can be adjusted or modified based on the tilt axis (AR) and the seat rotation axis (ASR) and the positioning of the center of gravity. Figure 14 The configuration shown improves the stability of the spring-loaded oscillating assembly 10.

[0178] Figures 15A-15C Additional configurations or features of the swing arm 25 and its interface with the swing arm pivot 127 are shown. A swing arm connector 125 may be provided, having a first end fixed to the swing arm pivot 127 and configured to attach or connect with the swing arm 25. For example, the swing arm 25 may be received within the swing arm connector 125 and further secured by a rivet 125a and a snap pin 125b. The snap pin 125b may be provided on the swing arm 25 and may be configured to be received within an opening in the swing arm connector 125. The rivet 125a may extend through the opening in the swing arm connector 125 and reside within a slot 125c defined in the swing arm 25. This arrangement of the connectors reduces or limits any play or loose connection between the swing arm 25 and the swing arm pivot 127, thereby providing improved swing time. Furthermore, the connector allows the user to quickly and easily remove the rocker arm 25 from the rocker arm pivot 127 for disassembly. The locking pin 125b prevents the two parts from being removed from each other, and the rivet / slot connector minimizes torsional and rotational movement between the rocker arm 25 and the rocker arm pivot 127.

[0179] The spring-loaded oscillating assembly 10 disclosed herein typically offers a small footprint, i.e., no overhead or vertical support, and requires very limited energy to drive the oscillating arm assembly. The spring-loaded oscillating assembly 10 also features an improved and efficient configuration for transmitting force between multiple axes: i.e., the oscillating arm axis (X1), the escapement axis (X2), and the drive spring axis (X3)). This configuration imparts a pendulum-like motion to the oscillating arm through the use of bearings, thereby overcoming wind resistance and increasing the operating time of the spring-loaded oscillating assembly 10. The spring-loaded oscillating device disclosed herein also has a longer operating time, exceeding 45-60 minutes based on the user winding the drive spring for approximately 20 seconds or approximately 20-30 turns.

[0180] Figures 16A-27 An alternative to the spring-loaded oscillating assembly 600 according to this disclosure is shown. Figures 16A-27 The alternative to the disclosed spring-loaded oscillating assembly 600 is partially similar to... Figures 1A-15C The spring-loaded oscillating assembly 10 described herein functions similarly to those described above. The spring-loaded oscillating assembly 600 includes a rocker arm assembly 612, which includes a seat frame 615 and a rocker arm 625 connected to a rocker arm pivot 627. The spring-loaded oscillating assembly 600 also includes a frame assembly 635 and a crank assembly 640.

[0181] The swing arm 625 extends between the swing arm pivot 627 and the seat frame 615. The swing arm 625 forms an approximately L-shape. The shape and position of the swing arm 625 can alleviate safety concerns by minimizing the possibility of a child's hands, fingers, legs, or head getting stuck between the swing arm 625 and the seat frame 615. It should be understood that, for safety reasons, the swing arm 625 may include other shapes to affect the spacing between the swing arm 625 and the seat frame 615.

[0182] The configuration of the connection between the swing arm 625 and the frame assembly 635 allows easy access to the seat on the seat frame 615. For example, there is no structure directly above the seat frame 615 (see...). Figure 16B This configuration creates an open passageway, allowing caregivers to place and remove children into and out of the swing assembly 600. It should be understood that movable toy rods or other movable or removable play toys may be included on the seat frame 615 without obstructing the open passageway to the seat on the seat frame 615.

[0183] The crank assembly 640 includes a crank arm 644, a ring 646, and a plate 648. The ring 646 extends around the periphery of the plate 648 and can be secured to the seat frame 615. The crank arm 644 is connected to the plate 648 such that rotation of the crank arm 644 causes rotation of the plate 648. The crank arm 644 and the plate 648 can rotate about the same axis of rotation. Rotation of the crank arm 644 can tighten the drive spring 60. During operation (as further described below), when the user tightens the crank arm 644 to tighten the drive spring 60, the user can grasp the ring 646 to facilitate the tightening motion.

[0184] The crank arm 644 may have a curved or rounded shape and may rotate downward toward the plate 648. In one embodiment, the crank arm 644 may rotate downward into a recess or opening defined by the plate 648. The ability to rotate downward and the shape of the crank arm 644 may minimize "snagging" (e.g., ropes, clothing or other materials being caught or tangled in the area of ​​the crank arm 644).

[0185] Figures 18-26 Alternatives to the rocker arm assembly and seat assembly 740 according to this disclosure are shown. The rocker arm assembly 712 includes a rocker arm 725 and a support hub 727. The rocker arm 725 may extend between the rocker arm pivot 627 and the support hub 727. The seat assembly 740 includes a seat frame 715, a seat portion 717, and a base assembly 719. The seat assembly 740 may be detachably connected to the support hub 727 (see [link to documentation]). Figure 19 and Figure 20 ).

[0186] refer to Figures 21A to 21D The support hub 727 may include a rotating hub 750 and a fixed hub 752. The fixed hub 752 may be fixedly connected to the rocker arm 725. The rotating hub 750 may be rotatably connected to the fixed hub 752 such that the rotating hub 750 can rotate relative to the fixed hub 752 about a rotation axis A. The rotating hub 750 includes a rotating body 754 extending upward from the rotating base 753. The rotating body 754 is configured to receive the seat assembly 740 thereon. The rotating body 754 defines a circular recess 756 and at least one anti-rotation channel 758. The circular recess 756 may be located in the center of the rotating body 754. In one embodiment, the center of the circular recess 756 may be located on the rotation axis A. The rotating body 754 also includes at least one latch 760. The at least one latch 760 may be located within the at least one anti-rotation channel 758. It should be understood that the at least one latch 760 may be located at other locations on the rotating hub 750. In one embodiment, the rotating body 754 includes four anti-rotation channels 758 and four latches 760 located within the respective anti-rotation channels 758. It should be understood that the rotating body 754 may include fewer or more anti-rotation channels 758 and latches 760.

[0187] refer to Figure 21C and Figure 21D The support hub 727 may also include a plunger 762 and a biasing element 764. The biasing element may be an elastic member, such as a spring. The plunger 762 and the biasing element 764 may be at least partially located between the rotating hub 750 and the fixed hub 752. The rotating hub 750 may define at least one plunger recess or brake element 766. The shape and configuration of the at least one plunger recess 766 correspond to the plunger 762, such that the plunger 762 can be received by the at least one plunger recess 766. The connection between the plunger 762 and the at least one plunger recess 766 creates a temporary rotational lock between the rotating hub 750 and the fixed hub 752. The temporary rotational lock can be overcome by applying a rotational force to the rotating hub 750 to force the biasing element 764 to retract the plunger 762 from the at least one plunger recess 766. The rotating hub 750 may include four plunger recesses 766 circumferentially spaced around the rotating hub 750. It should be understood that the rotating hub 750 may include fewer or more than four plunger recesses 766. In one embodiment, the plunger recesses 766 may be equidistant from each other around the rotating hub 750.

[0188] Reference Figure 22 The seat assembly 740 also includes at least one support leg 768, a support base 770, and a connecting assembly 772. The at least one support leg 768 extends upward from the support base 770 and is configured to support the seat frame 715 and seat portion 717 above the support base 770. As shown, the at least one support leg 768 includes two legs. It should be understood that the at least one support leg 768 may include fewer or more legs. The support base 770 may define, for example, a rocker arm, a flat surface, or other shapes, such that the seat assembly 740 attached to the support base 770 can be used independently of the rocker arm assembly 712 and placed on a surface (e.g., a floor, a work surface, etc.).

[0189] The connecting assembly 772 can be connected to the support hub 727. (See reference...) Figure 23A and Figure 23B The connecting component 772 defines a connecting recess 776. The connecting recess 776 is sized to accommodate a support hub 727 for connecting the seat assembly 740 to the swing arm 725. In one embodiment, the connecting recess 776 defines a shape that substantially corresponds to the shape of the outer surface of the rotating body 754.

[0190] The seat assembly 740 also includes at least one actuator 774. The at least one actuator 774 can control the release connection between the connecting assembly 772 and the support hub 727, as further described below. The at least one actuator 774 can be connected to at least one of the support leg 768, the support base 770, and the connecting assembly 772.

[0191] According to the alternatives disclosed herein, Figure 24A and Figure 24B A connecting assembly 872 and a support hub 827 are shown. The connecting assembly 872 may include at least one connecting recess 874. The support hub 827 may include at least one connecting stud 829. When the connecting assembly 872 is positioned on the support hub 827, at least one connecting stud 829 may be received within at least one connecting recess 874. The connection between at least one connecting stud 829 and at least one connecting recess 874 provides further rotational locking (e.g., torque locking) between the connecting assembly 872 and the support hub 827. Less energy is wasted during operation of the oscillating assembly 600 by reducing movement between the connecting assembly 872 and the support hub 827. It should be understood that at least one stud 829 and at least one recess 874 may be located on either the connecting assembly 872 or the support hub 827. For example, the support hub 827 may include at least one recess 874, while the connecting assembly 872 may include a corresponding at least one stud 829.

[0192] Figures 25-27 A cross-section of at least one actuator 774 and a portion of a connecting assembly 772 is shown. The connecting assembly 772 includes an actuator biasing element 777, a pivot member 778, and a hub latch 780. The connecting assembly 772 also defines a hub protrusion 782 and at least one anti-rotation rib 784 within a connecting recess 776. The at least one anti-rotation rib 784 is sized to be received within a corresponding at least one anti-rotation channel 758 of the rotating hub 750. The connection of the at least one rib 784 within the at least one anti-rotation channel 758 substantially prevents rotation between the connecting assembly 772 and the rotating hub 750. It should be understood that the rotating hub 750 may include at least one rib, and the connecting assembly 772 includes at least one channel configured to receive the at least one rib. The hub protrusion 782 is sized to be received by a circular recess 756 of the rotating hub 750.

[0193] The actuator biasing element 777 may be, for example, an elastic member (e.g., a spring) and is connected between at least one actuator 774 and a pivot member 778. The pivot member 778 may be, for example, a pivot shaft or a pivot latch and is pivotally connected to the body 772a of the connecting assembly 772 at a pivot connection 779. The pivot member 778 is also connected between the biasing element 777 and a hub latch 780. A first end 778a of the pivot member 778 is connected to at least one actuator 774 and is under the biasing force of the biasing element 777. A second end 778b of the pivot member 778 is connected to the hub latch 780 and biases the hub latch 780 to a locked position, allowing the hub latch 780 to engage with the rotating hub 750. The hub latch 780 may be pivotally connected to the body 772a of the connecting assembly 772. Actuation of actuator 774 or at least one actuator 774 moving to the actuated position causes hub latch 780 to be in the unlocked position. Figure 26 ) and lock position ( Figure 27 Transitions between ) . For example, refer to Figure 26 When actuator 774 is actuated (e.g., in Figure 26 (Moving upwards in the view shown), actuator 774 overcomes the biasing force of biasing element 777 and causes pivot member 778 to pivot about pivot connector 779. The pivoting movement of pivot member 778 changes hub latch 780 from the locked position to the unlocked position. When at least one actuator 774 is released, biasing element 777 pulls at least one actuator 774 downwards and causes pivot member 778 to rotate about pivot connector 779, which changes hub latch 780 to the locked position.

[0194] Reference Figure 27 The hub latch 780 is in the locked position, and the rotating hub 750 is located within the connecting recess 776. The hub latch 780 is in the locked position and engages with at least one latch bracket 760 of the rotating hub 750. The engagement between the at least one latch bracket 760 and the hub latch 780 essentially locks the seat assembly 740 to the rotating hub 750. To remove the seat assembly 740, at least one actuator 774 can be actuated to turn the hub latch 780 to the unlocked position. In the unlocked position, the seat assembly 740 can be removed from the rotating hub 750.

[0195] A method of using a spring-loaded oscillating assembly 10 is also disclosed. It should be understood that the method of using the spring-loaded oscillating assembly 10 can also be used to operate a spring-loaded oscillating assembly 600. The method may include engaging the crank assembly 40 by rotating a crank handle 44. The crank assembly 40 is operatively connected to a tensioning mechanism 50 such that a rotational input from the crank assembly 40 is applied to the tensioning mechanism 50. Rotating the crank handle 44 tensions the drive spring 60, which is connected to the tensioning mechanism 50. The method includes selectively releasing energy from the drive spring 60 via an escapement assembly 70, which may include a bracket 72. The bracket 72 may also be connected to the swing arm pivot 27 via a pusher 90. Based on this arrangement, during the powered stroke, the swing arm pivot 27 moves (i.e., is driven) in a first direction due to the discrete release of energy from the drive spring 60 via the escapement assembly 70. During the unpowered stroke, the swing arm pivot 27 moves in a second direction opposite to the first direction. This movement in the second direction is based on momentum or gravity. The swing arm pivot 27 is configured to swing left and right based on energy from the drive spring 60, rather than swinging forward and backward.

[0196] This document also discloses a method for driving the seat frame 15 of a spring-loaded oscillating assembly 10. It should be understood that the method for driving the seat frame 15 of the spring-loaded oscillating assembly 10 can also be used to operate the spring-loaded oscillating assembly 600. The method may include rotating a crank assembly 40 connected to a drive spring 60, thereby tightening the drive spring 60. The drive spring 60 may have a drive spring axis (X3) oriented in a non-vertical direction. The method includes transferring energy from the tightened drive spring 60 to an escapement assembly 70, which may have an escapement axis (X2) angled relative to the drive spring axis (X3). The method may include selectively releasing energy from the escapement assembly 70 to a swing arm pivot 27. The swing arm pivot 27 may be connected to the seat frame 15 and may have a swing arm axis (X1) angled relative to both the drive spring axis (X3) and the escapement axis (X2).

[0197] Compared to known non-electric or manually driven oscillating assemblies, the spring-loaded oscillating assembly 10 disclosed herein also provides enhanced running time or oscillation time. For example, the spring-loaded oscillating assembly disclosed herein can provide approximately one hour of running time. This running time is based on the user turning the crank winding mechanism for approximately 20 seconds, or approximately 20-30 revolutions.

[0198] Compared to known clockwork-type oscillating assemblies, the clockwork-type oscillating assembly 10 disclosed herein offers a reduced footprint while also providing improved accessibility to the child-supporting seat frame. As shown, the drive spring 60 is positioned off-center relative to the seat frame. This provides several advantages, including unobstructed access to the seat frame and the child, and also provides an ideal center of gravity by positioning the drive spring 60 relatively closer to the ground compared to clockwork-type oscillating assemblies that require the drive spring 60 to be positioned above the seat frame. Based on this positioning, the center of gravity is lowered to the ground, thus requiring a relatively smaller support assembly for the frame.

[0199] Overall reference Figures 28A-34 Additional example embodiments of this disclosure are shown. These embodiments provide various beneficial features, such as: (a) mechanical design of the tightening gear, shaft, and tightening components that simplifies assembly and reduces costs; (b) radial support around the rotating shaft; (c) axial support at the outer circumference of the torque clutch; (d) enhanced tightening experience / feel for the consumer—e.g., reduced friction, increased rigidity, and improved support for the tightening rotator; (e) a closing feature with amplitude control; and (f) a welded steel frame design for reduced transport dimensions.

[0200] refer to Figures 28A-29 Another exemplary embodiment of the gear assembly and torque clutch, generally identified by reference numeral 800, is shown in the order of assembly steps to illustrate the constituent parts. Figures 28A-29 The operation of the torque limiting clutch assembly 800 shown is similar to... Figures 12A-12G and / or Figures 12K-12M The torque limiting clutch assembly is shown. Various aspects of the assembly process apply to the various torque clutches disclosed herein. The gear assembly includes shafts 802 and 804 housed in shaft holes 806 and 808 of housing 810, to which gears 811 and 812 are engaged. A gear cap 814 is then mounted on housing 810 and secured thereto with fasteners such as screws 816. A low-friction support washer 820 may be mounted in gear cap 814. Torque clutch 824 is then mounted to gear cap 814 and rotatably engaged with shaft 802. Once torque clutch 824 is installed, a tightening knob 828 is engaged with torque clutch 824. A crown trim piece 830 is then mounted on gear cap 814 and torque clutch 824, and a tightening rotator 832 is engaged with torque clutch 824. It should be understood that the assembly sequence of components may differ from the sequence described above, and some components may first be assembled into sub-assemblies, which are then assembled into a unit. Furthermore, various components can be fastened together in various ways (e.g., by fasteners, friction fits, snap-fits, adhesives, etc.).

[0201] exist Figure 28G In the exemplary application, the tightening knob 828 is connected to the torque clutch 824 using a pin, although it can alternatively be snapped onto a boss. Furthermore, a downward-flipped tightening knob 828 is shown. This design can be implemented for aesthetic and safety reasons, although other mounting methods are also conceivable. For this example design, it should be noted that the tightening knob 828 is directly connected to the torque clutch 824 and can be mounted around a vertical axis or other axes, with or without fasteners.

[0202] exist Figure 28H In this configuration, the crown trim 830 is installed as a decorative element and can have an aesthetically pleasing design. Because this trim is rigidly attached to the gear cap 814, concentricity between the rotating tightening component and any aesthetically pleasing cap component is always ensured. This minimizes friction between components due to deflection during tightening.

[0203] When components such as Figures 28A-28L When assembled as shown, the resulting components are in Figure 29 The image is shown in cross-section. In this embodiment, gears 806 and 808 are axially held by gear caps 814, torque clutch 824 is radially positioned by a central shaft 802, the outer lower support circumference of torque clutch 824 is supported by low-friction support washers 820, and the outer upper support circumference of torque clutch 824 is supported by crown trim 830 for its vertical retention. A tightening rotator 832 provides an aesthetically pleasing cover and, through a snap-fit ​​connection with torque clutch 824, provides axial retention of the tightening shaft 802. Therefore, this exemplary embodiment of the assembly provides: minimal components, torque clutch with radial support at the center and axial thrust at the periphery to resist consumer tightening forces during tightening, and retention of the tightening shaft's center by the tightening rotator when engaged. The improved radial and axial support of the torque clutch, combined with the low-friction support washers, significantly improves the tightening experience through component rigidity and low friction.

[0204] As mentioned above Figures 7A-7D In this embodiment, the escapement mechanism 70 has a minimum operating swing angle, which can be approximately 9 degrees per side. If the swing amplitude is below this value, the mechanism will not function. An amplitude control device 92 is provided to set the swing amplitude at a preferred height. Typically, this amplitude must be greater than 9 degrees per side to be effective. For a given design, the amplitude control is set to a minimum of approximately 15 degrees and a maximum of 25 degrees per side. The purpose of the amplitude control lever 95 is to move the control lever downward to reduce the swing amplitude. However, moving the amplitude control lever 92 downward too far will cause the lever to jam against the drop plate. When this occurs, the amplitude control fails, and the swing mechanism will swing at its maximum amplitude.

[0205] refer to Figures 30-33 An example closing feature for amplitude control can be implemented in the escapement mechanism 70. Figure 33 In this design, by strategically setting a downward stop 910 to limit the downward rotation of the amplitude control lever 95, a position can be found where the drop plate 85 is activated with a swing angle less than the required exemplary 9 degrees per side without jamming. Furthermore, the drop plate 85 must be able to "float." Therefore, a space (e.g., gap 920) is provided as shown to provide a closed position. Additionally, moving the amplitude control lever 95 downward would cause it to jam the drop plate 85, thus disabling it. Therefore, the stop 910 is positioned as shown to prevent the amplitude control lever 95 from descending further, thereby preventing the drop plate 85 from jamming. The stop 910 can be located in the housing supporting the amplitude control device 92 or another adjacent component.

[0206] refer to Figure 34 In some embodiments, a welded steel frame can be provided, allowing for reduced transport dimensions and other benefits. When the frame is substantially rigid, these different mechanical components disclosed herein will provide improved performance. As shown, an example frame design includes a welded frame 1005, which includes a tower-shaped member 1010 rigidly welded to a horizontal member 1020 of a base 1030. A corresponding U-shaped or bent member 1040 of the base 1030 is adapted to be inserted into or otherwise coupled to the horizontal member 1020 of the welded frame.

[0207] The aforementioned oscillating component can be implemented in various structures and operated in the various methods listed below: 1. A spring-loaded oscillating assembly, comprising: a frame assembly including a housing; a drive spring positioned within the housing and having a drive spring axis (X3) oriented in a non-vertical direction relative to a vertical plane; and a swing arm assembly connected to the frame assembly to receive energy from the drive spring, the swing arm assembly including a swing arm and a swing arm pivot, the swing arm being rotatable about a swing arm axis (X1) oriented in a non-horizontal direction relative to a horizontal plane.

[0208] 2. The spring-loaded oscillating assembly according to configuration 1, wherein the drive spring axis (X3) is angled relative to the swing arm axis (X1).

[0209] 3. The spring-loaded oscillating assembly according to configuration 1, wherein the axis of the swing arm (X1) is oriented at an angle of 30-70 degrees relative to the horizontal plane.

[0210] 4. The spring-loaded oscillating assembly according to configuration 1, wherein the drive spring axis (X1) is oriented at an angle of 5-20 degrees relative to the vertical plane.

[0211] 5. The spring-loaded oscillating assembly according to configuration 1 further includes an escapement assembly connected to the frame assembly, the escapement assembly having an escapement axis (X2) angled relative to the swing arm axis (X1).

[0212] 6. The spring-loaded oscillating assembly according to configuration 5, wherein the swing arm axis (X1), the escapement axis (X2), and the drive spring axis (X3) are each at an angle relative to each other.

[0213] 7. The spring-loaded oscillating assembly according to configuration 5, wherein the escapement axis (X2) is substantially parallel to the horizontal plane.

[0214] 8. The spring-loaded swing assembly according to configuration 1, wherein the swing arm assembly includes an adjustment assembly and a seat frame, and the adjustment assembly is configured to adjust the tilt angle of the seat frame.

[0215] 9. The spring-loaded oscillating assembly according to configuration 8, wherein the drive spring is arranged laterally relative to the seat frame.

[0216] 10. The spring-loaded oscillating assembly according to configuration 1, wherein the frame assembly includes: an upper end and a lower end; a base located at the lower end of the frame assembly; and an upright frame member extending from the base to the upper end of the frame assembly.

[0217] 11. The spring-loaded oscillating assembly according to configuration 10, wherein the frame assembly further includes: a support located at the lower end of the frame assembly, the support being configured to rest on the ground; and a handle positioned adjacent to the upper end of the frame assembly.

[0218] 12. The spring-loaded oscillating assembly according to configuration 11, wherein the support extends from the base in opposite directions.

[0219] 13. The spring-loaded oscillating assembly according to configuration 1, wherein the crank assembly is disposed on the frame assembly to tighten the drive spring.

[0220] 14. The spring-loaded oscillating assembly according to configuration 13, wherein the crank assembly includes a crank handle configured to extend away from the frame assembly, and rotation of the crank handle about the crank pivot causes the drive spring to tighten.

[0221] 15. The spring-loaded oscillating assembly according to configuration 14, wherein the crank handle is configured to fold outward from the frame assembly in the use state and is configured to fold into a pocket defined on the frame assembly in the storage state.

[0222] 16. The spring-loaded oscillating assembly according to configuration 13 further includes a tensioning mechanism disposed between the crank assembly and the drive spring to switch the starting input from the crank assembly, thereby tensioning the drive spring.

[0223] 17. The spring-loaded oscillating assembly according to configuration 16, wherein: the tightening mechanism includes a tightening shaft connected at a first end to a crank assembly and at a second end to a spool; and the drive spring includes a first end connected to an attachment plate arranged around the tightening shaft and a second end connected to the spool, such that rotation of the tightening shaft tightens the drive spring via the spool.

[0224] 18. The spring-loaded oscillating assembly according to configuration 17 further includes a gear assembly disposed between the crank assembly and the drive spring to reduce the force required to tighten the drive spring, the gear assembly including: a crank gear fixed to a shaft connected to the crank assembly; and a spring gear engaging the crank gear and fixed to a spool.

[0225] 19. The spring-loaded oscillating assembly according to configuration 1 further includes a tensioning mechanism comprising a tensioning shaft positioned along the drive spring axis (X3), the tensioning mechanism having a first end connected to the crank assembly and a second end connected to the spool.

[0226] 20. The spring-loaded oscillating assembly according to configuration 19, wherein the drive spring includes a first end connected to an attachment plate arranged around a tensioning shaft and a second end connected to a spool, such that rotation of the tensioning shaft tensions the drive spring via the spool.

[0227] 21. The spring-loaded oscillating assembly according to configuration 20, wherein the tightening mechanism further includes: a first tightening gear arranged around a tightening shaft and attached to an attachment plate; and a second tightening gear meshing with the first tightening gear; wherein stored energy released from the drive spring drives the first tightening gear to rotate, and the first tightening gear drives the second tightening gear to rotate.

[0228] 22. The spring-loaded oscillating assembly according to configuration 21 further includes an escapement assembly connected to the frame assembly, the escapement assembly including an escape shaft connected to a second winding gear that rotatably drives the escape shaft, the escape shaft being oriented along the escapement axis (X2).

[0229] 23. The spring-loaded oscillating assembly according to configuration 22, wherein the escapement axis is oriented substantially parallel to the horizontal plane.

[0230] 24. The spring-loaded oscillating assembly according to configuration 22, wherein the escapement assembly further includes an escapement gear fixed to the escapement shaft, the escapement gear being configured to be driven via a second winding gear.

[0231] 25. The spring-loaded oscillating assembly according to configuration 24, wherein the escapement assembly further includes: a bracket connected to the escapement shaft and configured to rotate about the escapement axis (X2); and a pusher including a first end connected to the bracket and a second end connected to the swing arm assembly, wherein the pusher drives the swing arm assembly to rotate when the escapement gear is driven by stored energy released from the drive spring through the connection of the escapement shaft to the second winding gear.

[0232] 26. The spring-loaded oscillating assembly according to configuration 25, wherein: the pusher includes a wire, a first end and a second end of the pusher include portions angled relative to the body of the pusher, the first end of the pusher is configured to be held in an opening in a bracket including a through hole, at least one tapered region adjacent to the through hole, and the second end of the pusher is configured to be held in an opening in a pivot housing of the swing arm assembly, the opening including a through hole and at least one tapered region adjacent to the through hole.

[0233] 27. The spring-loaded oscillating assembly according to configuration 25, wherein the pusher includes a first bevel gear and a second bevel gear driven to engage with the first bevel gear, the first bevel gear being attached to the swing arm pivot and the second bevel gear being connected to the bracket.

[0234] 28. The spring-loaded oscillating assembly according to configuration 25, wherein the escapement gear includes a plurality of teeth, and the escapement assembly further includes: a pawl pivotally attached to the frame assembly, the pawl including pawl teeth selectively engaging with the teeth of the escapement gear to prevent the escapement gear from rotating in the drive direction when the oscillating arm is in an intermediate state; and a clamp pivotally attached to the bracket, the clamp selectively engaging with the teeth of the escapement gear when the oscillating arm rotates and the pawl teeth disengage from the escapement gear.

[0235] 29. The spring-loaded oscillating assembly according to configuration 28, wherein the escapement assembly further includes an actuator coupled to the escapement shaft and configured to rotate about the escapement axis (X2), the actuator selectively engaging with the pawl and clamp to control selective engagement between the pawl and clamp and the escapement gear.

[0236] 30. The spring-loaded oscillating assembly according to configuration 28 further includes: an amplitude control assembly including a drop plate configured to selectively limit the travel of the clamp; and an amplitude control lever configured to selectively adjust the position of the drop plate.

[0237] 31. The spring-loaded oscillating assembly according to configuration 30, wherein the drop plate includes an engagement portion configured to engage with a portion of a clamp and an accessory configured to engage with a portion of an amplitude control lever.

[0238] 32. The spring-loaded oscillating assembly according to configuration 31, wherein the amplitude control lever includes a first stop and a second stop, the first stop and the second stop being spaced apart from each other and each being configured to engage with an attachment of the drop plate to control the oscillation amplitude.

[0239] 33. The spring-loaded oscillating assembly according to configuration 19 further includes a torque-limiting clutch configured to prevent over-tightening of the drive spring.

[0240] 34. The spring-loaded oscillating assembly according to configuration 33, wherein the torque limiting clutch includes a torque clutch spring mounted on a spindle, and the torque clutch spring is configured to tighten when the tightening shaft rotates in the tightening direction, and to slide when the drive spring is tightened beyond a predetermined torque.

[0241] 35. The spring-loaded oscillating assembly according to configuration 33, wherein the torque-limiting clutch comprises: a first housing operably connected to the crank assembly, the first housing including clutch drive teeth; a clutch hub fixed to the crank assembly; and a clutch pawl pivotally connected to the clutch hub via a biasing element, the clutch pawl being biased by the biasing element to selectively engage with the clutch drive teeth; wherein, when the drive spring is tightened through the crank assembly, the clutch pawl engages with the clutch drive teeth until a predetermined torque limit is reached to transmit torque from the crank assembly to the drive spring, and when the torque transmitted from the crank assembly to the drive spring exceeds the predetermined torque limit, the clutch pawl disengages from the clutch drive teeth to prevent further transmission of torque from the crank assembly to the drive spring.

[0242] 36. The spring-loaded oscillating assembly according to configuration 33, wherein the torque limiting clutch includes: an input shaft connected to the crank assembly; an output shaft connected to the drive spring; a cap fixed to the input shaft; and a spool fixed to the output shaft and clamped to the cap; wherein the cap and the spool are configured to slide relative to each other when a predetermined force is overcome to prevent the drive spring from being over-tightened.

[0243] 37. The spring-loaded oscillating assembly according to configuration 33, wherein the torque limiting clutch comprises: a shaft connected to a crank assembly; an input hub including at least one engagement member; and an output hub connected to the shaft, the output hub including at least one protrusion engageable with the engagement member; wherein the at least one protrusion is configured to disengage from the at least one engagement member when a predetermined force from the crank assembly is overcome, to prevent the drive spring from being over-tightened.

[0244] 38. The spring-loaded oscillating assembly according to configuration 37, wherein at least one engagement member is an elastic member that is biased toward engagement with at least one protrusion.

[0245] 39. The spring-loaded oscillating assembly according to configuration 37, wherein at least one coupling is pivotally attached to the input hub.

[0246] 40. The spring-loaded oscillating assembly according to configuration 37 further includes a spring connected to at least one engagement member and biasing the at least one engagement member toward engaging with at least one protrusion.

[0247] 41. The spring-loaded oscillating assembly according to configuration 1, wherein the oscillating arm is connected to the oscillating arm pivot via an oscillating arm connector, the oscillating arm connector including a rivet and a locking pin.

[0248] 42. The spring-loaded swing assembly according to configuration 1, wherein the swing arm assembly includes a seat frame, and the occupant's center of gravity (COG) within the seat frame substantially intersects the tilt axis (AR) and the seat rotation axis (ASR) of the seat frame.

[0249] 43. The clockwork oscillating assembly according to configuration 1, wherein the oscillating arm assembly includes a seat frame, and the tilt axis (AR) of the seat frame and the seat rotation axis (ASR) of the seat frame intersect each other, and both axes extend through the center of gravity (COG) defined by the seat frame and the occupant of the clockwork oscillating assembly.

[0250] 44. A swing assembly comprising: a frame assembly; a swing arm assembly connected to the frame assembly, the swing arm assembly including a swing arm pivot member pivotally attached to the frame assembly; and a swing arm having a first end connected to the swing arm pivot member and a second end connected to a seat assembly; wherein the swing arm is rotatable about a swing arm axis (X1) oriented in a non-horizontal direction relative to a horizontal plane.

[0251] 45. The swing assembly according to configuration 44, wherein the swing arm is L-shaped.

[0252] 46. ​​The swing assembly according to configuration 44, wherein the swing arm further includes a support hub located at a second end of the swing arm and configured to accommodate the seat assembly.

[0253] 47. The swing assembly according to configuration 46, wherein the seat assembly is detachably connected to the support hub.

[0254] 48. The swing assembly according to configuration 46, wherein the support hub is rotatable relative to the swing arm.

[0255] 49. The swing assembly according to configuration 46, wherein the seat assembly includes a connecting recess and the support hub includes a connecting stud received within the connecting recess to secure the seat assembly to the support hub.

[0256] 50. The swing assembly according to configuration 46, wherein the support hub includes: a fixed hub fixed to the swing arm; and a rotating hub rotatably connected to the fixed hub, the rotating hub being configured to be attached to the seat assembly and rotate relative to the fixed hub.

[0257] 51. The oscillating assembly according to configuration 50 further includes: a plunger; a biasing element for attaching the plunger to the fixed hub; and a brake formed on the rotating hub to selectively receive the plunger, thereby suppressing rotation between the rotating hub and the fixed hub.

[0258] 52. The swing assembly according to configuration 50, wherein the seat assembly further includes: a seat frame; at least one support leg connected to the seat frame; and a connecting assembly including a connecting recess for receiving a rotating hub.

[0259] 53. The oscillating assembly according to configuration 51, wherein the rotating hub includes at least one rib, and the connecting recess defines at least one channel to receive at least one rib.

[0260] 54. The swing assembly according to configuration 51, wherein the seat assembly includes an actuator to release the engagement between the seat assembly and the support hub.

[0261] 55. The swing assembly according to configuration 54, wherein the connecting assembly comprises: a body; a pivot member having a first end and a second end, and pivotally connected to the body at a pivot connection located between the first end and the second end, the first end of the pivot member being attached to an actuator; an actuator biasing element applying a biasing force to the first end of the pivot member to bias the actuator to a rest position; and a hub latch connected to the second end of the pivot member and biased to a locked position with the rotating hub to secure the seat assembly to the rotating hub; wherein movement of the actuator to the actuated position overcomes the biasing force of the actuator biasing element and causes the pivot member to pivot about the pivot connection, thereby moving the hub latch to an unlocked position and disengaging it from the rotating hub.

[0262] 56. The swing assembly according to configuration 52, wherein the seat assembly further includes a support base for using the seat assembly independently of the swing arm assembly when the seat assembly is detached from the swing arm assembly.

[0263] 57. A spring-loaded oscillating assembly, comprising: a frame assembly; a drive spring positioned within the frame assembly and oriented in a non-vertical direction relative to a vertical plane; a crank assembly disposed on the frame assembly and configured to input a drive torque to the drive spring; a seat frame rotatably connected to the frame assembly, the seat frame including a swing arm oriented in a non-horizontal direction relative to a horizontal plane; and a gear assembly connected to the crank assembly and the drive spring to transmit energy from the drive spring to provide oscillating motion to the seat frame.

[0264] 58. A method of using a spring-loaded oscillating assembly, the method comprising: engaging a crank assembly by rotating a crank handle, wherein the crank assembly is connected to a tensioning mechanism; tensioning a drive spring connected to the tensioning mechanism; and selectively releasing energy from the drive spring via an escapement assembly having a bracket connected to a swing arm pivot via a pusher, such that the swing arm pivot moves in a first direction during a powered stroke, and such that the swing arm pivot moves in a second direction during a non-powered stroke.

[0265] 59. A method of driving a seat frame for a spring-loaded oscillating assembly, the method comprising: rotating a crank assembly connected to a drive spring such that the drive spring is wound up, the drive spring being positioned along a drive spring axis (X3) oriented in a non-vertical direction relative to a vertical plane; transferring energy from the wound drive spring to an escapement assembly having an escapement axis (X2) angled relative to the drive spring axis (X3); and selectively releasing energy from the escapement assembly to a swing arm pivot, wherein the swing arm pivot is connected to the seat frame and has a swing arm axis (X1) oriented in a non-horizontal direction relative to a horizontal plane and angled relative to the drive spring axis (X3) and the escapement axis (X2).

[0266] 60. A spring-loaded oscillating assembly, comprising: Frame components, including the shell; A drive spring is positioned within the housing and has a drive spring axis (X3) oriented in a non-vertical direction relative to a vertical plane. A swing arm assembly, connected to the frame assembly to receive energy from the drive spring, the swing arm assembly including a swing arm and a swing arm pivot, the swing arm being rotatable about a swing arm axis (X1) oriented in a non-horizontal direction relative to the horizontal plane; and The tightening mechanism includes a tightening shaft positioned along the axis (X3) of the drive spring, the tightening mechanism having a first end connected to the crank assembly and a second end connected to the spool; The drive spring includes a first end connected to an attachment plate arranged around the tensioning shaft and a second end connected to the spool, such that rotation of the tensioning shaft causes the drive spring to tighten via the spool.

[0267] 61. The spring-loaded oscillating assembly according to configuration 60, wherein the tightening mechanism further comprises: A first tensioning gear is arranged around the tensioning shaft and attached to the attachment plate; and The second upper gear meshes with the first upper gear; The stored energy released from the drive spring rotatably drives the first tension gear, and the first tension gear rotatably drives the second tension gear. An escapement assembly, connected to the frame assembly, the escapement assembly including an escape shaft connected to a second clamping gear that rotatably drives the escape shaft, the escape shaft being oriented along the escapement axis (X2), the escapement assembly including: The bracket, connected to the escapement shaft and configured to rotate about the escapement axis (X2); and The pusher includes a first end connected to the bracket and a second end connected to the swing arm assembly; When the escape gear is driven by stored energy released from the drive spring via the connection between the escape shaft and the second upper gear, the pusher drives the swing arm assembly to rotate; and An escapement gear, fixed to the escapement shaft and configured to be driven via a second tightening gear, the escapement gear comprising a plurality of teeth.

[0268] 62. The spring-loaded oscillating assembly according to configuration 61, wherein the escapement assembly further comprises: A pawl, pivotally attachable to the frame assembly, the pawl including pawl teeth that selectively engage with the teeth of the escapement gear to prevent the escapement gear from rotating in the drive direction when the swing arm is in the intermediate position; The clamp is pivotally attached to the bracket and can selectively engage with the teeth of the escapement gear when the swing arm rotates and the pawl teeth disengage from the escapement gear. Amplitude control components; and Amplitude control lever; The amplitude control lever includes a first stop and a second stop, which are spaced apart from each other and are each configured to control the swing amplitude.

[0269] 63. The spring-loaded oscillating assembly according to configuration 62, wherein the amplitude control assembly includes a drop plate configured to selectively limit the travel of the clamp, and the amplitude control lever configured to selectively adjust the position of the drop plate, wherein the drop plate includes an engagement portion and an accessory, the engagement portion being configured to engage with a portion of the clamp, and the accessory being configured to engage with a portion of the amplitude control lever.

[0270] 64. The spring-loaded oscillating assembly according to configuration 63, wherein the amplitude control lever includes a closed position.

[0271] 65. The spring-loaded oscillating assembly according to configuration 64, wherein the housing supporting the amplitude control assembly includes a downward stop for limiting further movement of the amplitude control lever, the downward stop corresponding to the closed position of the amplitude control lever.

[0272] 66. The spring-loaded oscillating assembly according to configuration 63 further includes, when the amplitude control lever is in the closed position, a gap between the accessory configured to engage with a portion of the amplitude control lever and the housing supporting the amplitude control assembly, thereby enabling the drop plate to float.

[0273] 67. A spring-loaded oscillating assembly, comprising: Frame components, including the shell; A drive spring is positioned within the housing and has a drive spring axis (X3) oriented in a non-vertical direction relative to a vertical plane. A swing arm assembly, connected to the frame assembly to receive energy from a drive spring, the swing arm assembly including a swing arm and a swing arm pivot, the swing arm being rotatable about a swing arm axis (X1) oriented in a non-horizontal direction relative to a horizontal plane; The tightening mechanism includes a tightening shaft positioned along the axis (X3) of the drive spring; and A torque-limiting clutch is configured to prevent the drive spring from being over-tightened.

[0274] 68. The spring-loaded oscillating assembly according to configuration 67, wherein the torque-limiting clutch is radially supported at its axis of rotation.

[0275] 69. The spring-loaded oscillating assembly according to configuration 67, wherein the outer lower support circumference of the torque limiting clutch is axially supported by the housing.

[0276] 70. The spring-loaded oscillating assembly according to configuration 69 further includes a low-friction spacer between the housing and the lower support circumference of the torque-limiting clutch.

[0277] 71. The spring-loaded oscillating assembly according to configuration 67, wherein the outer upper support circumference of the torque limiting clutch is axially supported by the crown.

[0278] 72. The spring-loaded oscillating assembly according to configuration 67, wherein the winding mechanism has a first end connected to the crank assembly and a second end connected to the spool.

[0279] 73. The spring-loaded oscillating assembly according to configuration 72, wherein the torque limiting clutch includes a torque clutch spring mounted on the spool, the torque clutch spring being configured to tighten when the tightening shaft rotates in the tightening direction and to slide when the drive spring is tightened beyond a predetermined torque.

[0280] 74. The spring-loaded oscillating assembly according to configuration 73 further includes a tensioning mechanism, the tensioning mechanism including a tensioning shaft positioned along the axis (X3) of the drive spring, the tensioning mechanism having a first end connected to the crank assembly and a second end connected to the spool; The torque limiting clutch mentioned above includes: A first housing is operatively connected to the crank assembly, the first housing including clutch drive teeth; The clutch hub is fixed to the crank assembly; and A clutch pawl, pivotally connected to the clutch hub via a biasing element, is biased by the biasing element to selectively engage with the clutch drive teeth; When the drive spring is tightened via the crank assembly, the clutch pawl engages with the clutch drive teeth until a predetermined torque limit is reached to transfer torque from the crank assembly to the drive spring. When the torque transmitted from the crank assembly to the drive spring exceeds the predetermined torque limit, the clutch pawl disengages from the clutch drive teeth to prevent further transmission of torque from the crank assembly to the drive spring.

[0281] 75. The spring-loaded oscillating assembly according to configuration 67, wherein the torque limiting clutch comprises: The input shaft is connected to the crank assembly; The output shaft is connected to the drive spring; Cap, fixed to the input shaft; and The clutch spool is fixed to the output shaft and clamped to the cap; The cap and the spool are configured to slide relative to each other when a predetermined force is overcome, in order to prevent the drive spring from being over-tightened.

[0282] 76. The spring-loaded oscillating assembly according to configuration 75, wherein the torque-limiting clutch comprises: A shaft is connected to the crank assembly; Input hub, including at least one coupling member; and An output hub, connected to the shaft, the output hub including at least one protrusion capable of engaging with the coupling; The at least one protrusion is configured to disengage from the at least one engagement member when a predetermined force from the crank assembly is overcome, in order to prevent the drive spring from being over-tightened.

[0283] 77. The spring-loaded oscillating assembly according to configuration 76, wherein the at least one engaging member is an elastic member biased toward engaging with the at least one protrusion.

[0284] 78. The spring-loaded oscillating assembly according to configuration 76, wherein the at least one coupling member is pivotally attached to the input hub.

[0285] 79. The spring-loaded oscillating assembly according to configuration 76 further includes a spring connected to the at least one coupling member and biasing the at least one coupling member toward engaging with the at least one protrusion.

[0286] 80. The spring-loaded oscillating assembly according to configuration 67 further includes a low-friction support washer located between the housing and the torque-limiting clutch, the low-friction support washer being mounted in the gear cap of the housing.

[0287] 81. A spring-loaded oscillating assembly, comprising: A frame assembly having an upper end and a lower end, a base member located at the lower end of the frame assembly, and an upright frame member extending from the base member to the upper end of the frame assembly, the frame assembly including a housing; A drive spring, positioned within the housing, and having a drive spring axis (X3) oriented in a non-vertical direction relative to a vertical plane; and A swing arm assembly, connected to the frame assembly to receive energy from the drive spring, the swing arm assembly including a swing arm and a swing arm pivot, the swing arm being rotatable about a swing arm axis (X1) oriented in a non-horizontal direction relative to the horizontal plane; The upright frame member is welded to the base member.

[0288] 82. The spring-loaded oscillating assembly according to configuration 81, wherein the frame assembly further includes: A support member, located at the lower end of the frame assembly, is configured to rest on the ground. The handle is positioned adjacent to the upper end of the frame assembly.

[0289] 83. The spring-loaded oscillating assembly according to configuration 82, wherein the support extends from the base member in opposite directions.

[0290] This embodiment has been described in detail. Those skilled in the art will understand and appreciate that many physical changes can be made without altering the inventive concepts and principles embodied therein, only some of which are illustrated by example in the detailed description of this disclosure.

[0291] It should also be understood that many embodiments are possible in combination with only a portion of the preferred embodiments, which do not alter the inventive concept and principles embodied therein with respect to those portions.

[0292] Therefore, this embodiment and optional configuration are considered exemplary and / or illustrative in all embodiments, rather than restrictive. The scope of this disclosure is defined by the appended claims rather than the foregoing description, and thus all alternative embodiments and modifications thereof falling within the meaning and scope of equivalents of the claims are included therein.

Claims

1. A spring-loaded oscillating assembly, comprising: Frame components, including the shell; A drive spring is positioned within the housing and has a drive spring axis (X3) oriented in a non-vertical direction relative to a vertical plane. A swing arm assembly, connected to the frame assembly to receive energy from the drive spring, the swing arm assembly including a swing arm and a swing arm pivot, the swing arm being rotatable about a swing arm axis (X1) oriented in a non-horizontal direction relative to the horizontal plane; as well as The tightening mechanism includes a tightening shaft positioned along the axis (X3) of the drive spring, the tightening mechanism having a first end connected to the crank assembly and a second end connected to the spool; The drive spring includes a first end connected to an attachment plate arranged around the tensioning shaft and a second end connected to the spool, such that rotation of the tensioning shaft causes the drive spring to tighten via the spool.

2. The spring-loaded oscillating assembly according to claim 1, wherein, The tightening mechanism also includes: A first tensioning gear, arranged around the tensioning shaft and attached to the attachment plate; and The second upper gear meshes with the first upper gear; The stored energy released from the drive spring rotatably drives the first tension gear, and the first tension gear rotatably drives the second tension gear. An escapement assembly, connected to the frame assembly, the escapement assembly including an escape shaft connected to a second clamping gear for rotatably driving the escape shaft, the escape shaft being oriented along an escapement axis (X2), the escapement assembly including: A bracket, connected to the escapement axis and configured to rotate about the escapement axis (X2); and The pusher includes a first end connected to the bracket and a second end connected to the swing arm assembly; When the escape gear is driven by stored energy released from the drive spring via the connection between the escape shaft and the second upper gear, the pusher drives the swing arm assembly to rotate; and An escapement gear, fixed to the escapement shaft and configured to be driven via a second tightening gear, the escapement gear comprising a plurality of teeth.

3. The spring-loaded oscillating assembly according to claim 2, wherein, The escapement assembly also includes: A pawl, pivotally attachable to the frame assembly, the pawl including pawl teeth that selectively engage with the teeth of the escapement gear to prevent the escapement gear from rotating in the drive direction when the swing arm is in the intermediate position; The clamp is pivotally attached to the bracket and can selectively engage with the teeth of the escapement gear when the swing arm rotates and the pawl teeth disengage from the escapement gear. Amplitude control components; and Amplitude control lever; The amplitude control lever includes a first stop and a second stop, which are spaced apart from each other and are each configured to control the swing amplitude.

4. The spring-loaded oscillating assembly according to claim 3, wherein, The amplitude control assembly includes a drop plate configured to selectively limit the travel of the clamp, and an amplitude control lever configured to selectively adjust the position of the drop plate, wherein the drop plate includes an engagement portion and an accessory, the engagement portion being configured to engage with a portion of the clamp, and the accessory being configured to engage with a portion of the amplitude control lever.

5. The spring-loaded oscillating assembly according to claim 4, wherein, The amplitude control lever includes a closed position.

6. The spring-loaded oscillating assembly according to claim 5, wherein, The housing supporting the amplitude control assembly includes a downward stop for limiting further movement of the amplitude control lever, the downward stop corresponding to the closed position of the amplitude control lever.

7. The spring-loaded oscillating assembly of claim 4, further comprising, when the amplitude control lever is in the closed position, a gap between the accessory configured to engage a portion of the amplitude control lever and the housing supporting the amplitude control assembly, thereby enabling the drop plate to float.

8. A spring-loaded oscillating assembly, comprising: Frame components, including the shell; A drive spring is positioned within the housing and has a drive spring axis (X3) oriented in a non-vertical direction relative to a vertical plane. A swing arm assembly, connected to the frame assembly to receive energy from a drive spring, the swing arm assembly including a swing arm and a swing arm pivot, the swing arm being rotatable about a swing arm axis (X1) oriented in a non-horizontal direction relative to a horizontal plane; The tightening mechanism includes a tightening shaft positioned along the axis (X3) of the drive spring; and A torque-limiting clutch is configured to prevent the drive spring from being over-tightened.

9. The spring-loaded oscillating assembly according to claim 8, wherein, The torque-limiting clutch is radially supported at its axis of rotation.

10. The spring-loaded oscillating assembly according to claim 8, wherein, The outer lower support circumference of the torque limiting clutch is axially supported by the housing.

11. The spring-loaded oscillating assembly of claim 10, further comprising a low-friction spacer between the housing and the lower support circumference of the torque-limiting clutch.

12. The spring-loaded oscillating assembly according to claim 8, wherein, The outer upper support circumference of the torque limiting clutch is axially supported by the crown.

13. The spring-loaded oscillating assembly according to claim 8, wherein, The tightening mechanism has a first end connected to the crank assembly and a second end connected to the spool.

14. The spring-loaded oscillating assembly according to claim 13, wherein, The torque limiting clutch includes a torque clutch spring mounted on the spool, the torque clutch spring being configured to tighten when the tightening shaft rotates in the tightening direction, and to slide when the drive spring is tightened beyond a predetermined torque.

15. The spring-loaded oscillating assembly according to claim 14, further comprising a tensioning mechanism, the tensioning mechanism comprising a tensioning shaft positioned along the axis (X3) of the drive spring, the tensioning mechanism having a first end connected to the crank assembly and a second end connected to the spool; The torque limiting clutch mentioned above includes: A first housing is operatively connected to the crank assembly, the first housing including clutch drive teeth; The clutch hub is fixed to the crank assembly; and A clutch pawl, pivotally connected to the clutch hub via a biasing element, is biased by the biasing element to selectively engage with the clutch drive teeth; When the drive spring is tightened via the crank assembly, the clutch pawl engages with the clutch drive teeth until a predetermined torque limit is reached to transfer torque from the crank assembly to the drive spring. When the torque transmitted from the crank assembly to the drive spring exceeds the predetermined torque limit, the clutch pawl disengages from the clutch drive teeth to prevent further transmission of torque from the crank assembly to the drive spring.

16. The spring-loaded oscillating assembly according to claim 8, wherein, The torque limiting clutch includes: The input shaft is connected to the crank assembly; The output shaft is connected to the drive spring; Cap, fixed to the input shaft; and The clutch spool is fixed to the output shaft and clamped to the cap; The cap and the spool are configured to slide relative to each other when a predetermined force is overcome, in order to prevent the drive spring from being over-tightened.

17. The spring-loaded oscillating assembly according to claim 16, wherein, The torque limiting clutch includes: A shaft is connected to the crank assembly; Input hub, including at least one coupling member; and An output hub, connected to the shaft, the output hub including at least one protrusion capable of engaging with the coupling; The at least one protrusion is configured to disengage from the at least one engagement member when a predetermined force from the crank assembly is overcome, in order to prevent the drive spring from being over-tightened.

18. The spring-loaded oscillating assembly according to claim 17, wherein, The at least one engagement member is an elastic member that is biased toward engaging with the at least one protrusion.

19. The spring-loaded oscillating assembly according to claim 17, wherein, The at least one coupling member can be pivotally attached to the input hub.

20. The spring-loaded oscillating assembly of claim 17, further comprising a spring connected to the at least one coupling member and biasing the at least one coupling member toward engaging with the at least one protrusion.

21. The spring-loaded oscillating assembly of claim 8 further includes a low-friction support washer located between the housing and the torque-limiting clutch, the low-friction support washer being mounted in the gear cap of the housing.

22. A spring-loaded oscillating assembly, comprising: A frame assembly having an upper end and a lower end, a base member located at the lower end of the frame assembly, and an upright frame member extending from the base member to the upper end of the frame assembly, the frame assembly including a housing; A drive spring is positioned within the housing and has a drive spring axis (X3) oriented in a non-vertical direction relative to a vertical plane. as well as A swing arm assembly, connected to the frame assembly to receive energy from the drive spring, the swing arm assembly including a swing arm and a swing arm pivot, the swing arm being rotatable about a swing arm axis (X1) oriented in a non-horizontal direction relative to the horizontal plane; The upright frame member is welded to the base member.

23. The spring-loaded oscillating assembly according to claim 22, wherein, The framework components also include: A support member, located at the lower end of the frame assembly, is configured to rest on the ground. The handle is positioned adjacent to the upper end of the frame assembly.

24. The spring-loaded oscillating assembly according to claim 23, wherein, The support extends from the base member in the opposite direction.

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