Bicycle saddle with spring-based vibration isolation

Abstract

The vibration isolation device may be configured to provide improved vibration isolation performance for a bicycle saddle or the like. The bicycle saddle may be operatively connected to a bicycle frame. The vibration isolation device may be disposed within a portion of the bicycle frame. The vibration isolation device may be operatively located relative to the bicycle saddle. The vibration isolation device is configured to exhibit a non-linear stiffness profile. The non-linear stiffness profile may include a region of near-zero stiffness. The vibration isolation device includes a plurality of spring members arranged in a stacked configuration.

Description

[Technical field]

[0001] The subject matter described herein relates generally to saddles, and more specifically, to bicycle saddles. [Background technology]

[0002] Bicycle saddles, commonly referred to as bicycle seats, are designed to support a portion of the rider's body. The height of the saddle is often adjustable. Saddles can be made in a variety of shapes and sizes. Saddles can be configured to provide a certain amount of comfort to the rider, for example, by including padding. Summary of the Invention

[0003] In one aspect, the present disclosure is directed to a vibration isolator. The vibration isolator can include a plunger and a landing. The plunger can be configured to be urged toward the landing. The vibration isolator can include a stack of spring members operatively positioned between the plunger and the landing. The vibration isolator can be configured to exhibit a non-linear stiffness profile. The non-linear stiffness profile can include a region of near-zero stiffness.

[0004] In another aspect, the present disclosure is directed to a system for vibration isolation of a bicycle saddle. The system may include a bicycle saddle. The system may include a bicycle frame. The bicycle saddle may be operatively connected to the bicycle frame. The system may include an isolator disposed within a portion of the bicycle frame. The isolator may be operatively located relative to the bicycle saddle. The isolator may be configured to exhibit a non-linear stiffness profile. The non-linear stiffness profile may include a region of near-zero stiffness. The isolator may include a plurality of spring members arranged in a stacked configuration. [Brief description of the drawings]

[0005] [Figure 1] FIG. 1 shows an example of a portion of a bicycle. [Figure 2A] FIG. 1 illustrates an example of a force-deflection curve for a conical spring. [Figure 2B] FIG. 13 illustrates example force-deflection curves for various stacks of multiple conical springs. [Diagram 3] 1 is a cross-sectional view of an example of a conical spring used in an anti-vibration device for a bicycle saddle. [Figure 4A] 1 is a cross-sectional view of a first example of an anti-vibration device for a bicycle saddle, shown in an unactuated state; FIG. [Figure 4B] 1 is a cross-sectional view of a first example of an anti-vibration device for a bicycle saddle, shown in an activated state; FIG. [Figure 4C] 1A-1C are cross-sectional views of a first example of an anti-vibration device for a bicycle saddle, showing further operational states; [Diagram 5] 1 is a cross-sectional view of a second example of an anti-vibration device for a bicycle saddle, shown in an unactuated state. FIG. [Figure 6A] FIG. 13 is a cross-sectional view of a third example of an anti-vibration device for a bicycle saddle, shown in an unactuated state. [Figure 6B] 11 is a cross-sectional view of a third example of an anti-vibration device for a bicycle saddle, shown in an activated state; FIG. [Figure 7] FIG. 11 is a cross-sectional view of a fourth example of an anti-vibration device for a bicycle saddle, shown in an unactuated state. [Figure 8] FIG. 1 illustrates an example of an anti-vibration system. [Figure 9A] FIG. 1 illustrates an example of an annular wave spring. [Figure 9B] FIG. 1 illustrates an example of an annular wave spring. [Figure 10] 1A and 1B are diagrams illustrating examples of multi-turn wave springs. [Figure 11] FIG. 1 illustrates an example of a magnetic elastomer isolator. [Figure 12] FIG. 13 illustrates an example of a force versus deflection graph showing the difference in the curves for a spring-based isolator and a linear spring. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0006] When in use, bicycles may be ridden over rough or otherwise non-smooth surfaces. As a result, vibrations may be transmitted to the bicycle seat or saddle. Such vibrations may cause discomfort to the rider and / or reduce the comfort of the ride. In accordance with features described herein, vibration isolation devices and systems may be configured to manage vibrations and / or forces that may be encountered during use of the bicycle.

[0007] The vibration isolator may be configured to exhibit a non-linear stiffness profile. The non-linear stiffness profile may include a region of near-zero stiffness. The vibration isolator may include a plurality of spring members arranged in a stack. The vibration isolator may be used in connection with a system. In such a case, the vibration isolator may be disposed within a portion of a bicycle frame. The vibration isolator may be operatively positioned relative to a bicycle saddle.

[0008] Although detailed embodiments are disclosed herein, it should be understood that the disclosed embodiments are intended as examples only. Therefore, specific structural and functional details disclosed herein should not be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching those skilled in the art to variously employ the aspects of the present specification in substantially any suitable detailed structure. Furthermore, the terms and phrases used herein are not intended to be limiting, but rather to provide an understandable description of possible implementations. Although various embodiments are shown in Figures 1 to 12, the embodiments are not limited to the illustrated structures or applications.

[0009] It should be understood that for simplicity and clarity of illustration, reference numerals have been appropriately repeated among different figures to indicate corresponding or similar elements. Additionally, numerous specific details have been set forth to provide a thorough understanding of the embodiments described herein. However, it will be understood by those skilled in the art that the embodiments described herein may be practiced without these specific details.

[0010] 1, an example of a portion of a bicycle 100 is shown. Although the mechanisms described herein are made for bicycles, it will be understood that the mechanisms described herein may be used in connection with a variety of devices, including seats or saddles. For example, the mechanisms described herein may be used in connection with any motorized or non-motorized vehicle, including, for example, a one-wheeler, a motorcycle, or a three-wheeler.

[0011] The bicycle 100 may include a saddle 102, which may also be referred to as a seat. The saddle 102 may be designed to support a portion of the rider's body. The saddle 102 may provide cushioning and / or comfort to the user. The saddle 102 may be any type of saddle now known or later developed.

[0012] The saddle 102 may be operably connected to the bicycle frame 104 in any suitable manner now known or later developed. In one or more mechanisms, the saddle 102 may be operably connected to a seat post 106. The seat post 106 may be a tubular structure. In some mechanisms, at least a portion of the seat post 106 may be hollow. In such cases, the seat post 106 may have an inner periphery 108. As used throughout this specification, the term "operably connected" includes direct or indirect connections and may include connections without direct physical contact.

[0013] The vibration isolator 110 may be operatively positioned to reduce vibrations acting on the saddle 102. The vibration isolator 110 may be provided in any suitable location. In one or more mechanisms, the vibration isolator 110 may be disposed within a hollow interior of the seatpost 106. In some mechanisms, the vibration isolator 110 may frictionally couple with an inner circumferential surface 108 of the seatpost 106. In some mechanisms, the vibration isolator 110 may be operatively connected to the seatpost 106. For example, the vibration isolator 110 may be operatively connected to the seatpost 106 by one or more fasteners, one or more welds, one or more adhesives, and / or one or more forms of mechanical interlocking, or any combination thereof. The vibration isolator 110 may be operatively positioned relative to a coupling structure of the saddle 102, such as a pin 112, or other structure operatively connected to the saddle 102. In some mechanisms, the pin 112 may directly contact the vibration isolator 110. In some arrangements, the pin 112 may be spaced apart from the vibration isolator 110 .

[0014] 1 (e.g., a four-bar linkage or other structure) may push downward on the pin 112. As a result, the pin may push downward on the vibration isolator 110. In some mechanisms, the structure and the pin 112 may be separate structures. In other mechanisms, the structure and the pin 112 may be operatively connected to one another or may be a unitary structure.

[0015] It should be noted that while the arrangement shown in FIG. 1 includes a single isolator 110, it is understood that there may be multiple isolators 110. In such a case, the multiple isolators 110 may be arranged in any suitable manner. For example, the multiple isolators 110 may be stacked vertically within the post 106. When there are multiple isolators 110, the isolators 110 may be substantially identical to one another, or one or more of the isolators 110 may differ from the other isolators 110 in one or more respects.

[0016] The vibration isolator 110 may be configured to exhibit a non-linear stiffness profile. The non-linear stiffness profile may include a region of quasi-zero stiffness. An example of a force-deflection graph 200 for this type of actuator is shown in FIG. 2A. It should be noted that this force-deflection graph 200 is merely an example, as the values ​​will vary depending on various characteristics of the vibration isolator. However, the general shape of a force-deflection curve 210 representing a stiffness profile is shown. Starting at an origin 220, the vibration isolator 110 may exhibit an initial stiffness region 230 that is substantially linear. The vibration isolator 110 is relatively stiff in the initial stiffness region 230. Upon reaching a load, the force-deflection curve 210 may be zero or substantially zero, which is a quasi-zero stiffness region 240. The quasi-zero stiffness region 240 may allow for excellent vibration isolation. Continuing beyond the quasi-zero stiffness region 240, the force-deflection curve 210 may have a next stiffness region 250 that is substantially linear. The vibration isolator 110 is relatively stiff in the next stiffness region 250 .

[0017] Note that there are two force-deflection curves shown in Figure 2A. The first force-deflection curve 210' represents the isolator 110 going from an unloaded state to a loaded state. The second force-deflection curve 210'' represents the isolator 110 going from a loaded state to an unloaded state.

[0018] According to the features herein, the vibration isolation device 110 may include multiple spring members. In one or more features, the spring members may be conical springs 300. It should be noted that other terms may be used to describe the conical springs 300, such as Belleville washers, Belleville springs, conical disks, etc. As more conical springs are added to the stack, the quasi-zero stiffness region 240 of the force-deflection curve 210 may be elongated. An example of a force-deflection graph 260 depicting this effect is shown in FIG. 2B. As can be seen, as the number of conical springs 300 used in the stack increases, the length of the quasi-zero stiffness region increases.

[0019] 3, an example of a conical spring 300 is shown. The conical spring 300 may have a body 310 with a substantially conical shape. The conical spring 300 may include an outer diameter body portion 320 and an inner diameter body portion 330. The outer diameter body portion 320 may be larger than the inner diameter body portion 330. The conical spring 300 may have a central opening 340. The conical spring 300 may have a central axis 350. The conical spring may have a height H and a thickness τ.

[0020] The multiple conical springs 300 may be stacked and arranged in any suitable manner. For example, in one or more arrangements, the multiple conical springs 300 may be arranged in an alternating pattern. For example, the outer diameter body portion 320 of one conical spring 300 may face the outer diameter body portion 320 of an adjacent conical spring 300. Alternatively or in addition, the inner diameter body portion 330 of a conical spring 300 may face the inner diameter body portion 330 of an adjacent conical spring 300. The central openings 340 of the conical springs 300 may be substantially aligned with one another.

[0021] There are many ways in which multiple conical springs 300 can be arranged in a stack. Some examples are described herein, but it will be understood that the mechanisms are not limited to the examples.

[0022] The vibration isolation device 110 can have a variety of configurations, some of which are described herein with respect to Figures 4-7, each of which is described in turn below.

[0023] 4A-4B, a first example of an anti-vibration device 110 is shown. The anti-vibration device 110 may include an outer housing 120. The outer housing 120 may have any suitable size, shape, and / or configuration. In one or more configurations, the outer housing 120 may be substantially cylindrical. The outer housing 120 may be hollow. The outer housing 120 may have an inner periphery 122 and an outer periphery 124. The outer housing 120 may be made of any suitable material including, for example, metal or plastic.

[0024] The vibration isolation device 110 may include one or more landings 130. The landings 130 may be operably connected to the outer housing 120. For example, the landings 130 may be operably connected to the inner periphery 122 of the outer housing 120 by one or more fasteners, one or more welds, one or more adhesives, and / or one or more forms of mechanical interlocking, or any combination thereof. The landings 130 may be fixed landings in that they do not move. In some arrangements, the landings 130 may be fixed landings in that they do not move at least in at least the longitudinal direction L of the vibration isolation device 110.

[0025] The landings 130 may have any suitable configuration. For example, in one or more arrangements, the landings 130 may be substantially cylindrical in structure. In some arrangements, one or more of the landings 130. Alternatively, one or more of the landings 130 may be made of multiple segments. The landings may define a central opening 132.

[0026] The landing portion 130 may have an upper side 130' and a lower side 130''. It will be understood that the terms "upper" and "lower" are made relative to the orientation of the isolator 110 in Figures 4A-4B. However, it will be understood that such terminology is used for convenience and ease of description and is not intended to be limiting.

[0027] The landings 130 may be substantially identical to one another. Alternatively, one or more of the landings 130 may differ in one or more respects from the other landings. The landings 130 may be substantially evenly spaced apart from one another. Alternatively, one or more of the landings 130 may be unevenly spaced apart. The landings 130 may be made of any suitable material, including, for example, metal or plastic.

[0028] The vibration isolation device 110 may include any suitable number of landings 130. In the arrangement shown in Figures 4A-4B, there may be three landings. However, it will be understood that there may be a greater or lesser number of landings. For ease of explanation, the uppermost landing in Figure 4A is referred to as the first landing 130a. Continuing downward in the longitudinal direction L, the next landing is referred to as the second landing 130b. The lowermost landing is referred to as the third landing 130c.

[0029] The vibration isolation device 110 may include a plurality of plungers 140. The plungers 140 may be any movable structure and may have any suitable configuration. For example, in one or more mechanisms, one or more of the plungers 140 may include a head 142 and a shaft 144. The head 142 may include an upper side 142' and a lower side 142''. The shaft 144 may extend from the head 142, or more specifically, from the lower side 142'' of the head 142. The shaft 144 may extend to a distal end 146.

[0030] The vibration isolation device 110 may include any suitable number of plungers 140. In the arrangement shown in FIGS. 4A-B, there may be four plungers. However, it will be understood that in some arrangements there may be a greater or lesser number of plungers. For ease of explanation, the topmost plunger in FIG. 4A is referred to as the first plunger 140a. Continuing downward in the longitudinal direction L, the next plunger is referred to as the second plunger 140b. Continuing further downward in the longitudinal direction L, the next plunger is referred to as the third plunger 140c. The bottommost plunger is referred to as the fourth plunger 140d.

[0031] The head 142 may have any suitable size, shape, and / or configuration. The shaft 144 may have any suitable size, shape, and / or configuration. The head 142 and shaft 144 may be of unitary construction or may be separate pieces that are later joined together. In some arrangements, the head 142 may be substantially circular, rectangular, polygonal, or triangular in configuration. In some arrangements, the shaft 144 may have a substantially circular, rectangular, polygonal, or triangular cross-sectional shape.

[0032] In some arrangements, the shafts 144 of the plungers 140 may be substantially aligned with one another within the vibration isolator 110. In some arrangements, one or more of the shafts 144 may be offset from the other shafts 144.

[0033] The plungers 140 may be substantially identical to one another. Alternatively, one or more of the plungers 140 may differ from the other plungers 140 in one or more respects, including, for example, head width, head shape, head thickness, shaft length, shaft diameter or width, and / or shaft cross-sectional shape. In some configurations, a portion of the head 142 and shaft 144 of the first plunger 140a may extend outside of the outer housing 120. The exposed portion of the first plunger 140a may couple with a coupling structure (e.g., pin 112 in FIG. 1). The plungers 140 may be made of any suitable material, including, for example, metal or plastic.

[0034] As mentioned above, the vibration isolation device 110 may include a number of spring members, such as conical springs 150. The conical springs 150 may be any suitable conical spring now known or later developed. The conical springs may be any suitable type of spring member now known or later developed.

[0035] The conical springs 150 may be arranged in any suitable manner. For example, multiple conical springs 150 may be arranged in a stacked fashion. The conical springs may be arranged in a stacked fashion in any suitable manner. For example, multiple conical springs 150 may be arranged in an alternating pattern, as described above with respect to FIG. 3 and as shown in FIGS. 4A-4C.

[0036] The first stack of conical springs 150a may be operatively connected to and / or operatively positioned relative to the second plunger 140b (e.g., the underside 142'' of the head 142 of the second plunger 140b) and the first landing 130a (e.g., the upper side 130' of the first landing 130a). The second stack of conical springs 150b may be operatively connected to and / or operatively positioned relative to the third plunger 140c (e.g., the underside 142'' of the head 142 of the third plunger 140c) and the second landing 130b (e.g., the upper side 130' of the second landing 130b). The third stack of conical springs 150c may be operably connected to and / or operably positioned relative to the fourth plunger 140d (e.g., the underside 142'' of the head 142 of the fourth plunger 140d) and the third landing 130c (e.g., the upper side 130' of the third landing 130c).

[0037] Any suitable method of operable connection may be provided between the stack of conical springs 150 and the respective landings 130 and plungers 140. For example, the operable connection may include one or more fasteners, one or more welds, one or more brazes, one or more adhesives, and / or one or more forms of mechanical interlocking, or any combination thereof. In some examples, the stack of conical springs 150 may not be attached to the respective landings 130 and / or plungers 140.

[0038] Each of the conical spring stacks 150a, 150b, 150c may have any suitable amount of conical springs. In some arrangements, each of the conical spring stacks 150a, 150b, 150c may include the same number of conical springs. In some arrangements, the amount of conical springs in at least one of the stacks may differ from the other stacks. In some arrangements, the conical springs used in each stack may be substantially identical. However, in some arrangements, one or more of the conical springs in one of the stacks may differ from other conical springs in the same stack or other stacks. In some arrangements, the conical springs may be arranged in the same manner in each stack. However, in other arrangements, the conical springs in at least one of the stacks may be arranged differently from the other stacks.

[0039] Figure 4A illustrates the isolator 110 in an unactuated configuration, while Figures 4B and 4C illustrate an example of the isolator 110 in an actuated configuration. In the unactuated configuration, the distal ends 146 of the plungers 140 may be spaced a distance from the respective heads 142 of adjacent plungers 140.

[0040] When a load is applied against the head 142 of the first plunger 140a, such as from the pin 112, the first plunger 140a may move downward. Eventually, the distal end 146 of the first plunger 140a may contact the upper side 142' of the head 142 of the second plunger 140b. As the first plunger 140a moves further downward, the head 142 of the second plunger 140b moves downward. As a result, the first stack of conical springs 150a may be compressed. The process may continue with other plungers 140 and stacks of conical springs 150. FIGS. 4B and 4C show different stages of compression of the stack of conical springs 150.

[0041] 4A, the isolator 110 may be in an initial stiffness region 230 of the force-deflection curve 210. As can be seen, the conical spring 150 may be substantially in its neutral state. In the initial stiffness region 230, the stiffness curve may be substantially linear increasing from the origin of the graph. The isolator 110 may be relatively stiff in the initial stiffness region 230.

[0042] In Figures 4B and 4C, the vibration isolator 110 may be in a near-zero stiffness region 240 of the force-deflection curve 210. In the near-zero stiffness region 240, the force-deflection curve becomes substantially flat. The stiffness becomes very low, i.e., zero or substantially zero. The near-zero stiffness region 240 allows for excellent vibration isolation. In the near-zero stiffness region 240, the conical spring 150 may become substantially flat, as shown in Figure 4C.

[0043] It will be appreciated that the non-linear stiffness profile of an isolator 110 according to the mechanisms described herein may provide improved vibration isolation performance compared to linear spring type systems. A schematic representation of the difference in performance is shown in FIG. 12, which depicts a force versus deflection graph 1200. One curve 1202 represents the performance of an isolator according to the mechanisms described herein. Another curve 1204 represents the performance of an isolator comprising a linear spring. Curve 1202 includes a quasi-zero stiffness region, while curve 1204 does not include a quasi-zero stiffness region.

[0044] 4A-4C present one possible mechanism for stacking conical springs, but it will be understood that the mechanism is not limited to the example shown and described. Additionally, in some mechanisms, the stack of conical springs may include other elements. Indeed, in some examples, the stack of conical springs may include locking and / or non-locking spacers. Such locking and / or non-locking spacers may be disposed between adjacent conical springs. An example of such a mechanism is shown in U.S. Patent Application Serial No. 17 / 156,041, the entire contents of which are incorporated herein by reference.

[0045] Referring to Figure 5, another example of an isolator 110 is shown. For ease of explanation, the above description of the outer housing 120, landing 130, and plunger 140 equally apply here and will not be repeated. Also, the reference numerals used in Figures 4A-4C are used for similar structures in Figure 5.

[0046] In FIG. 5, the stack of spring members 150 may include a stack of magnetically actuated spring members. In one or more arrangements, the magnetically actuated spring members may be annular wave springs 900 (FIGS. 9A-9B). The annular wave springs 900 may be made of a metallic glass. The annular wave springs 900 may be made of an amorphous metal structure. In one or more arrangements, the annular wave springs 900 may be made of Metglas, available from Metglas Inc., Conway, South Carolina. Examples of wave springs are described in Panagiotopoulos et al., “Advanced Ultralight Multifunctional Metallic Glass Wave Springs,” Materials & Design 192 (2020): 108770, the entire contents of which are incorporated herein by reference. In some arrangements, the magnetically actuated spring members may be conical springs made of a magnetically responsive material, such as Metglas.

[0047] In one or more mechanisms, the magnetically actuated spring member can be a multi-turn wave spring 1000 (FIG. 10). The multi-turn wave spring 1000 can be made of a shape memory alloy. An example of a multi-turn wave spring is described in Spaggiari et al., "Multiphysics Modeling and Design of Shape Memory Alloy Wave Springs as Linear Actuators," Smart Materials, Adaptive Structures and Intelligent Systems. Vol. 44151. 2010, the entire contents of which are incorporated herein by reference. In some mechanisms, the magnetically actuated spring member can be a magnetic elastomer vibration isolator 1100 (FIG. 11). The magnetic elastomer vibration isolator 1100 can include a top plate 1102, a laminated magnetorheological elastomer (MRE) and steel layer 1104, a coil 1106, and a yoke 1108 (e.g., a steel yoke). An example of a magnetic elastomer vibration isolator is described in Li et al., "Highly Tunable Magnetorheological Elastomer-Based Vibration Isolator for Real-Time Adaptive Control Applications," Smart Materials and Structures 22.9 (2013):095020, the entire contents of which are incorporated herein by reference. The magnetically actuated spring member may be made of a material whose characteristics or properties change when exposed to a magnetic field. For example, the elastic modulus of the spring member may change when a magnetic field is applied. More specifically, the elastic modulus may change to a higher value. The magnetic field may change the stiffness of the spring member.

[0048] Additionally, the vibration isolation device 110 may include a magnetic field generator 155. The magnetic field generator 155 may be a device of any configuration now known or later developed that generates a magnetic field. By way of example, the magnetic field generator 155 may be a magnetic coil 156 and / or other components. The magnetic coil 156 may be operatively positioned relative to the spring member 150. In some arrangements, the magnetic coil 156 may be wrapped around at least a portion of the outer circumferential surface 124 of the outer housing 120. The magnetic coil 156 may be operatively connected to one or more power sources (see FIG. 8). Generation of the magnetic field may be controlled by one or more processors (FIG. 8), which may selectively allow or impede the flow of electrical energy to the magnetic field generator 155.

[0049] 5 shows the isolator 110 in an unactuated configuration. When a load is applied against the head 142 of the first plunger 140a, such as from the pin 112, the first plunger 140a may move downward. Eventually, the distal end 146 of the first plunger 140a may contact the upper side 142' of the head 142 of the second plunger 140b. As the first plunger 140a moves further downward, the head 142 of the second plunger 140b moves downward. As a result, the first stack of magnetically actuated spring members 150a may be compressed. The process may continue with other plungers 140 and stacks of magnetically actuated spring members.

[0050] Thus, when a force is applied to the vibration isolation device, the magnetic field generator 155 may operate to modify the performance characteristics of the magnetically actuated spring members. As a result, the magnetically actuated spring members may be modified to operate in a near-zero stiffness region of the force-deflection curve to enable superior vibration isolation.

[0051] Referring to Figures 6A-6B, another example of an isolator 110 is shown. For ease of explanation, the above description of the stack of outer housing 120, landing 130, plunger 140, and conical spring 150 given with respect to Figures 4A-4C applies here as well and will not be repeated. Also, the reference numbers used in Figures 4A-4C are used for similar structures in Figures 6A-6B. In Figures 6A-6B, the outer housing 120 is not shown for clarity.

[0052] Here, one or more of the landings 130 may be configured to be selectively movable. The landings 130 may be movable to move out of the path of the associated stack of conical springs 150. The landings may have any suitable movement. In one or more mechanisms, the landings 130 may move laterally or radially outward. Examples of such movements are shown in FIG. 6A. As can be seen, the first landing 130a moves laterally outward. As a result, the first landing 130a is no longer in the path of the first stack of conical springs 150a. Thus, when the second plunger 140b moves downward in the longitudinal direction L, the first stack of conical springs 150a is not compressed. As a result, the first stack of conical springs 150a does not contribute to the performance of the vibration isolator. Rather, in this example, only the second stack of conical springs 150b and the third stack of conical springs 150c contribute to the overall vibration isolation performance of the isolator 110.

[0053] The landing 130 may be movable in any suitable manner. For example, in one or more mechanisms, the landing 130 may be operatively connected to one or more actuators 885 ( FIG. 8 ). The actuators 885 may cause movement of the landing 130. The actuators 885 may be controlled by one or more processors 810 ( FIG. 8 ). In this example, the first stack of conical springs 150a may be operatively connected to the second plunger 140b such that if the first landing 130a moves out of course, the first stack of conical springs 150a remains attached to the second plunger 140b.

[0054] Referring to Figure 7, another example of an isolator 110 is shown. For ease of explanation, the above description of the stack of outer housing 120, landing 130, plunger 140, and conical spring 150 given with respect to Figures 4A-4C equally applies here and will not be repeated. Also, the reference numbers used in Figures 4A-4C are used for similar structures in Figure 7.

[0055] 7, the isolator 110 may include one or more plunger obstruction structures. The plunger obstruction structures may be a stopper (e.g., a rubber stopper) 160 and / or a viscous fluid. The shaft 144 of the plunger 140 may be configured to pass through the plunger obstruction structures.

[0056] The vibration isolation device may include a first stopper 160a, a second stopper 160b, and a third stopper 160c. In some arrangements, the first stopper 160a, the second stopper 160b, and the third stopper 160c may rest on the respective landings 130a, 130b, 130c. In some arrangements, the first stopper 160a, the second stopper 160b, and the third stopper 160c may be operatively connected to the respective landings 130a, 130b, 130c by, for example, one or more fasteners, one or more adhesives, and / or one or more forms of mechanical interlocking, or any combination thereof.

[0057] It will be appreciated that the plunger 140 is depressed. The plunger obstruction structure can slow the downward movement of the plunger 140. As a result, the plunger obstruction structure can alter the timing of compression of the conical spring 150 stack to achieve desired performance characteristics.

[0058] In some arrangements, the plunger-obstructing structures may be substantially identical to one another, however, in other arrangements, one or more of the plunger-obstructing structures may differ in one or more respects from the other plunger-obstructing structures.

[0059] In some arrangements, each of the landings 130 may have a plunger-impeding structure, however, in other arrangements, one or more of the landings 130 may not have a plunger-impeding structure.

[0060] It should be noted that in this mechanism, the vibration isolation device 110 may include a magnetorheological fluid (MR fluid). The MR fluid may be used in place of the spring member. Alternatively, the MR fluid may be used in combination with any of the mechanisms shown in Figures 4-7 above.

[0061] 8, an example is shown of a system 800 for vibration isolation of a seat or saddle. The system 800 may be used in combination with any type of seat or saddle, such as a bicycle seat or saddle.

[0062] System 800 may include a variety of elements. Some of the possible elements of system 800 are shown in FIG. 8 and described herein. It will be understood that it is not necessary for system 800 to have all of the elements shown in FIG. 8 or described herein. System 800 may have any combination of the various elements shown in FIG. 8. Furthermore, system 800 may have additional elements to those shown in FIG. 8. In some arrangements, system 800 may not include one or more of the elements shown in FIG. 8.

[0063] System 800 may include one or more processors 810, one or more data stores 820, one or more sensors 830, one or more power sources 840, one or more input interfaces 850, one or more output interfaces 860, a seat or saddle system 870, one or more control modules 880, and one or more actuators 885. Each of these elements is described in turn below.

[0064] As mentioned above, the system 800 may include one or more processors 810. A "processor" refers to any component or group of components configured to execute any of the processes described herein or any form of instructions to execute or cause the process to be executed. The processor 810 may be implemented with one or more general-purpose processors and / or one or more special-purpose processors. Examples of suitable processors include microprocessors, microcontrollers, DSP processors, and other circuits capable of executing software. Further examples of suitable processors include, but are not limited to, central processing units (CPUs), array processors, vector processors, digital signal processors (DSPs), field programmable gate arrays (FPGAs), programmable logic arrays (PLAs), application specific integrated circuits (ASICs), programmable logic circuits, and controllers. The processor 810 may include at least one hardware circuit (e.g., an integrated circuit) configured to execute instructions contained within a program code. In an arrangement in which there are multiple processors 810, the processors may function independently of one another, or one or more processors may function in combination with one another.

[0065] The system 800 may include one or more data stores 820 that store one or more types of data. The data stores 820 may include volatile and / or non-volatile memory. Examples of suitable data stores 820 include RAM (random access memory), flash memory, ROM (read only memory), PROM (programmable read only memory), EPROM (erasable programmable read only memory), EEPROM (electrically erasable programmable read only memory), registers, magnetic disks, optical disks, hard drives, or any other suitable storage medium, or any combination thereof. The data store 820 may be a component of the processor 810, or the data store 820 may be operatively connected to the processor 810 for use by the processor 810.

[0066] System 800 may include one or more sensors 830. "Sensor" means any device, component, and / or system that can detect, determine, evaluate, monitor, measure, quantify, obtain, and / or sense something. One or more sensors may detect, determine, evaluate, monitor, measure, quantify, obtain, and / or sense in real time. As used herein, the term "real time" refers to a level of processing responsiveness that allows a user or system to sense quickly enough a particular process or decision to be made or a processor to keep up with some external process.

[0067] In arrangements where system 800 includes multiple sensors 830, the sensors may function independently of one another. Alternatively, two or more of the sensors may function in combination with one another. In such cases, the two or more sensors may form a sensor network. Sensor 830 may be operatively connected to processor 810, data store 820, and / or other elements of system 800 (including any of the elements shown in FIG. 10).

[0068] The sensor 830 may include any suitable type of sensor. Various examples of different types of sensors are described herein. However, it will be understood that embodiments are not limited to the particular sensors described.

[0069] The sensors 830 may include one or more weight sensors 832. The weight sensors 832 may include any sensor now known or later developed configured to detect, determine, evaluate, monitor, measure, quantify, and / or sense any information or data related to the weight of an occupant of the saddle 102. The weight sensors 832 may be disposed under the saddle 102.

[0070] As mentioned above, the system 800 may include one or more power sources 840. The power source 840 may be any power source capable of and / or configured to power various elements, such as the actuators and magnetic field generators, as described below. For example, the power source 840 may include one or more batteries, one or more fuel cells, one or more generators, one or more alternators, one or more solar cells, and combinations thereof.

[0071] System 800 may include one or more input interfaces 850. An "input interface" includes any device, component, system, element, or mechanism, or grouping thereof, that allows information / data to be input into a machine. Input interface 850 may receive input from a person (e.g., a person riding a bicycle). Any suitable input interface 850 may be used, including, for example, a keypad, a display, a touch screen, a multi-touch screen, a switch, a button, a joystick, a mouse, a trackball, a microphone, and / or combinations thereof.

[0072] The system 800 may include one or more output interfaces 860. An "output interface" includes any device, component, system, element, or mechanism, or group thereof, that allows for information / data to be presented to a person. The output interface 860 may present information / data to an occupant in the saddle 102. The output interface 860 may include a display, an earphone, and / or a speaker. Some components of the system 800 may function as both components of the input interface 850 and components of the output interface 860.

[0073] The system 800 may include a set or saddle system 870. The saddle system 870 may include a seat or saddle and an isolator. The above descriptions of the saddle 102 and the isolator 110 apply equally to the same elements in the saddle system 870.

[0074] The system 800 may include one or more actuators 885. The actuators 885 may be operably connected to effect a variety of things. For example, the actuators 885 may be operably connected to effect movement of one or more of the landings 130. The actuators 885 may be operably connected to one or more of the landings 130. In one or more mechanisms, the actuators 885 may include servo motors, pneumatic actuators, hydraulic pistons, relays, solenoids, and / or piezoelectric actuators, just to name a few possibilities. The actuators 885 may include pistons, push and / or pull bars or rods, pulleys, gears, gear tracks, and / or magnets, just to name a few possibilities. The actuators 885 may include any combination of the above. The actuators 885 may be selectively actuated to move one or more of the landings 130 in and out of a variety of positions. In one or more mechanisms, the actuator 885 may actuate in response to receiving a signal or other input from the control module 880 and / or from a user (eg, via the input interface 850).

[0075] System 800 may include one or more modules, at least some of which are described herein. The modules may be implemented as computer readable program code that, when executed by a processor, implements one or more of the various processes described herein. One or more of the modules may be components of processor 810, or one or more of the modules may be executed on and / or distributed among other processing systems to which processor 810 is operatively connected. The modules may include instructions (e.g., program logic) executable by one or more processors 810. Alternatively or additionally, one or more data stores 820 may include such instructions.

[0076] In one or more arrangements, the modules described herein may include artificial or computational intelligence elements, such as neural networks, fuzzy logic, or other machine learning algorithms. Further, in one or more arrangements, the modules may be distributed among multiple modules. In one or more arrangements, two or more of the modules described herein may be combined into a single module.

[0077] The system 800 may include one or more control modules 880. The control module 880 may include profiles and logic to actively control the stiffness characteristics of the vibration isolator 110. The control module 880 may be configured to determine when the stiffness characteristics of the vibration isolator 110, such as the stiffness profile, should be adjusted. The control module 880 may be configured to do so in any suitable manner. For example, the control module 880 may be configured to analyze data or information obtained by the sensors 830 (e.g., weight sensor 1032 and / or other sensors). The control module 880 may obtain raw data from the sensors 830 and / or from the data store 820. The control module 880 may use profiles, parameters, or settings loaded into the control module 880 and / or stored in the data store 820. Alternatively or in addition, the control module 880 may be configured to detect user input (e.g., commands) provided at the input interface 850.

[0078] The control module 880 may analyze the sensor data to determine appropriate actions to adjust the performance characteristics of the isolator 110. The control module 880 may be configured to adjust the stiffness of the isolator 110. As used herein, "cause" or "cause" means to make, force, compel, direct, command, indicate, and / or enable an event or action to occur, either directly or indirectly, or to make, force, compel, direct, command, indicate, and / or enable an event or action to at least be in a state in which such event or action can occur.

[0079] For example, the control module 880 may move one or more landings 130 of the isolator 110 off course. For example, the control module 880 may actuate one or more of the actuators 885 that may move the landings 130 off course. As a result, the spring members 150 associated with the moved landings 130 do not contribute to the performance of the isolator 110. In some arrangements, the control module 880 may be configured to selectively allow, limit, regulate, modify, and / or impede the flow of electrical energy from the power source 840 to the actuators 885. The control module 880 may be configured to transmit control signals or commands over the communication network 890 to the actuators 885 or to other elements of the system 800.

[0080] The control module 880 may be configured to adjust the stiffness characteristics of the vibration isolation device 110 based on one or more parameters. For example, the control module 880 may be configured to adjust the stiffness characteristics of the vibration isolation device 110 based on real-time conditions as detected by the sensor 830, such as the weight of an occupant in the seat. Based on the real-time conditions, the control module 880 may determine a suitable stiffness characteristic for the vibration isolation device 110. The control module 880 may query the data store 820 for data regarding the spring members 150. For example, the control module 880 may query spring member data, such as a stress-strain curve for the spring members 150, including performance characteristics based on how many stacks of spring members are used. The control module 880 may be configured to select or determine an appropriate number of stacks of spring members 150 to achieve a desired stiffness characteristic.

[0081] The selective alteration of the stiffness characteristics of the vibration isolation device 110 may be performed at any suitable time, for example, the selective alteration may be performed continuously, periodically, irregularly, or even randomly.

[0082] In some examples, the control module 880 may be configured to selectively adjust the stiffness characteristics of the vibration isolation device 110 based on a user input (e.g., a command). For example, a user may provide an input at the input interface 850. The input may be to adjust the stiffness characteristics of the vibration isolation device 110. The control module 880 may be configured to adjust the stiffness characteristics of the vibration isolation device 110 according to the user input.

[0083] In some arrangements, the control module 880 may be configured to selectively activate and deactivate a magnetic field generator 500 (see FIG. 5 ) associated with the vibration isolation device 110. The control module 880 may be configured to modify the strength of the magnetic field generated by the magnetic field generator 500. In some arrangements, the control module 880 may be configured to selectively allow, limit, regulate, modify, and / or impede the flow of electrical energy from the power source 840 to the actuator 885. The control module 880 may be configured to transmit control signals or commands over the communication network 890 to the actuator 885 or to other elements of the system 800. In some arrangements, the control module 880 may be configured to modify the strength of the magnetic field generated by the magnetic field generator 500 based on the weight of an occupant in the saddle 102, which may be determined by the weight sensor 832.

[0084] The various elements of the system 800 may be communicatively connected to one another or to one or more other elements through one or more communications networks 890. As used herein, the term "communicatively connected" may include a direct or indirect connection through a communications channel, bus, path, or another component or system. A "communications network" refers to one or more components designed to transmit and / or receive information from one source to another. The data store 820 and / or one or more other elements of the system 800 may include and / or execute suitable communications software that enables the various elements to communicate with one another through the communications network to perform the functions disclosed herein.

[0085] The one or more communication networks 890 may be implemented as or include, but are not limited to, a wide area network (WAN), a local area network (LAN), a public switched telephone network (PSTN), a wireless network, a mobile network, a virtual private network (VPN), the Internet, a hardwired communication bus, and / or one or more intranets. The communication network may further be implemented as or include one or more wireless networks, whether short-range (e.g., a local wireless network established using Bluetooth or one of the IEEE 802 wireless communication protocols, e.g., 802.11a / b / g / i, 802.15, 802.16, 802.20, Wi-Fi Protected Access (WPA) or WPA2) or long-range (e.g., mobile, cellular, and / or satellite-based wireless networks, GSM, TDMA, CDMA, WCDMA networks, or the like). The communication network may include wired and / or wireless communication links. The communications network may include any combination of the above networks and / or other types of networks.

[0086] The terms "a" and "an," as used herein, are defined as one or more than one. The term "multiple," as used herein, are defined as two or more than two. The term "another," as used herein, is defined as at least a second or more. The terms "including" and / or "having," as used herein, are defined as comprising (i.e., open language). The term "or" is intended to mean an inclusive "or" rather than an exclusive "or." The phrase "at least one of ... and ..." as used herein refers to and includes any and all possible combinations of one or more of the associated listed items. As an example, the phrase "at least one of A, B, and C" includes A only, B only, C only, or any combination thereof (e.g., AB, AC, BC, or ABC).

[0087] The terms "substantially" or "about" as used herein include the exact term it modifies and slight variations therefrom. Thus, the term "substantially parallel" means exact parallelism and slight variations therefrom. "Slight variations therefrom" may include within 15 degrees / percent / unit or less, within 14 degrees / percent / unit or less, within 13 degrees / percent / unit or less, within 12 degrees / percent / unit or less, within 11 degrees / percent / unit or less, within 10 degrees / percent / unit or less, within 9 degrees / percent / unit or less, within 8 degrees / percent / unit or less, within 7 degrees / percent / unit or less, within 6 degrees / percent / unit or less, within 5 degrees / percent / unit or less, within 4 degrees / percent / unit or less, within 3 degrees / percent / unit or less, within 2 degrees / percent / unit or less, or within 1 degree / percent / unit or less. In some examples, "substantially" may include within normal manufacturing tolerances.

[0088] The aspects herein may be embodied in other forms without departing from the spirit or essential attributes thereof, and reference should accordingly be made to the following claims, rather than the foregoing specification, as indicating the scope of the invention.

Claims

1. 1. A vibration isolation device, comprising: A plunger and a landing portion, the plunger being configured to be pushed toward the landing portion; and a plurality of spring members operatively positioned between the plunger and the landing; The plurality of spring members are arranged in a stacked manner, The vibration isolation device is configured to exhibit a non-linear stiffness profile, the non-linear stiffness profile including a region of near-zero stiffness. Anti-vibration device.

2. The vibration isolation device of claim 1 , wherein the spring member is a conical spring.

3. The conical springs are arranged in an alternating pattern, each conical spring including an outer diameter body portion and an inner diameter body portion, and for each of the conical springs: the outer diameter body portion faces the outer diameter body portion of an adjacent conical spring; and the inner diameter body portion faces the inner diameter body portion of an adjacent conical spring; 3. The vibration isolation device according to claim 2.

4. 2. The anti-vibration device of claim 1, wherein the landing is movable such that the spring member is not compressed when the plunger is pushed.

5. one or more actuators operatively positioned relative to the landing such that, when actuated, the one or more actuators move the landing; one or more processors operably connected to selectively actuate the one or more actuators; The vibration isolation device of claim 4 further comprising:

6. The anti-vibration device of claim 1 , wherein the spring member is magnetically actuated.

7. a magnetic field generator operatively positioned relative to the spring member; Power supply, one or more processors operatively connected to control the supply of energy from the power source to the magnetic field generators; The vibration isolation device of claim 6 further comprising:

8. The vibration isolation device of claim 1 , wherein the spring member comprises a wave spring, a conical spring, or a magnetic elastomer vibration isolation device.

9. 2. The anti-vibration device of claim 1, further comprising a plunger obstruction structure operatively positioned to obstruct movement of the plunger toward the landing, the plunger obstruction structure being one of a stopper or a viscous fluid.

10. The vibration isolation device of claim 1 , wherein the stack of spring members is configured to be in a near-zero stiffness region of the non-linear stiffness profile when compressed.

11. 1. A system for vibration isolation of a bicycle saddle, said system comprising: Bicycle saddle, a bicycle frame, the bicycle saddle being operably connected to the bicycle frame; and a vibration isolation device disposed within a portion of the bicycle frame; the vibration isolator is operatively positioned relative to the bicycle saddle, the vibration isolator is configured to exhibit a non-linear stiffness profile, the non-linear stiffness profile including a region of near-zero stiffness, and the vibration isolator includes a plurality of spring members arranged in a stacked configuration. system.

12. The system of claim 11 , wherein the spring member is a conical spring.

13. The conical springs are arranged in an alternating pattern, each conical spring including an outer diameter body portion and an inner diameter body portion, and for each of the conical springs: the outer diameter body portion faces the outer diameter body portion of an adjacent conical spring; and the inner diameter body portion faces the inner diameter body portion of an adjacent conical spring; The system of claim 12.

14. The vibration isolation device is A plunger and a landing portion, the plunger being configured to be pushed toward the landing portion; and Including, the plurality of spring members are operatively positioned between the plunger and the landing; The vibration isolation device is configured to exhibit a non-linear stiffness profile, the non-linear stiffness profile including a region of near-zero stiffness. The system of claim 11.

15. 15. The system of claim 14, wherein the landing is movable such that when the plunger is pushed to move the landing, the stack of spring members is not compressed.

16. one or more actuators operatively positioned relative to the landing such that, when actuated, the one or more actuators move the landing; one or more processors operably connected to selectively actuate the one or more actuators; The system of claim 15 further comprising:

17. 15. The system of claim 14, further comprising a plunger obstruction structure operably positioned to obstruct movement of the plunger toward the landing, the plunger obstruction structure being one of a stopper or a viscous fluid.

18. The plurality of spring members are magnetically actuated, and the system comprises: a magnetic field generator operatively positioned relative to the plurality of spring members; Power supply, one or more processors operatively connected to control the supply of energy from the power source to the magnetic field generators; The system of claim 11 further comprising:

19. The system of claim 11 , wherein the stack of spring members is configured to be in a near-zero stiffness region of the non-linear stiffness profile when compressed.

20. The system of claim 11 , wherein the plurality of spring members are housed in posts of the bicycle frame.

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