EP3067097B1 - Übungsmaschine mit multifunktionalem radbremsenaktuator und verriegelungsmechanismus über totpunkt - Google Patents

Übungsmaschine mit multifunktionalem radbremsenaktuator und verriegelungsmechanismus über totpunkt Download PDF

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Publication number
EP3067097B1
EP3067097B1 EP16159035.1A EP16159035A EP3067097B1 EP 3067097 B1 EP3067097 B1 EP 3067097B1 EP 16159035 A EP16159035 A EP 16159035A EP 3067097 B1 EP3067097 B1 EP 3067097B1
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EP
European Patent Office
Prior art keywords
shaft
brake arm
tube
flywheel
lever
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16159035.1A
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English (en)
French (fr)
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EP3067097A1 (de
Inventor
Eric Golesh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foundation Fitness LLC
Original Assignee
Foundation Fitness LLC
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Filing date
Publication date
Priority claimed from US14/643,792 external-priority patent/US9919182B2/en
Priority claimed from US14/643,823 external-priority patent/US9839807B2/en
Application filed by Foundation Fitness LLC filed Critical Foundation Fitness LLC
Publication of EP3067097A1 publication Critical patent/EP3067097A1/de
Application granted granted Critical
Publication of EP3067097B1 publication Critical patent/EP3067097B1/de
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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/06—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement
    • A63B22/0605—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing a circular movement, e.g. ergometers
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/00058—Mechanical means for varying the resistance
    • A63B21/00069—Setting or adjusting the resistance level; Compensating for a preload prior to use, e.g. changing length of resistance or adjusting a valve
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/0046—Details of the support elements or their connection to the exercising apparatus, e.g. adjustment of size or orientation
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/005—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters
    • A63B21/0051—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters using eddy currents induced in moved elements, e.g. by permanent magnets
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/22—Resisting devices with rotary bodies
    • A63B21/225—Resisting devices with rotary bodies with flywheels
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
    • A63B2225/09—Adjustable dimensions
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
    • A63B2225/09—Adjustable dimensions
    • A63B2225/093—Height

Definitions

  • Embodiments of the present disclosure generally involve an exercise bicycle and a brake adjustment assembly and a locking assembly.
  • Indoor cycling is a popular and excellent way for people to maintain and improve fitness.
  • indoor cycling revolves around an exercise bicycle that is similar to other exercise bicycles with the exception that the pedals and drive sprocket are connected to a flywheel rather than some other type of wheel.
  • the spinning flywheel maintains some momentum and better simulates the feel of riding a real bicycle.
  • fitness clubs often offer indoor cycling classes as a part of their group fitness programs. With such a program, an instructor guides the class through a simulated real world ride including simulating long steady flat sections and climbing.
  • US 649106 describes a spin bike, comprising a frame assembly, a rotatable wheel, a pair of pedals, a friction pad adapted to engage a portion of said rotatable wheel for placing a load thereon during its rotation, and
  • an exercise machine comprising: a frame supporting a wheel; a brake arm pivotally coupled with the frame and moveable between at least a first position and a second position, the brake arm comprising at least one resistance element positioned proximate the wheel, and the first position associated with a first braking force on the wheel and the second position associated with a second braking force on the wheel, the second braking force greater than the first braking force; and a brake arm adjustment assembly comprising: a housing fixed relative to the frame, the housing translationally and rotatable supporting a shaft; a member operably fixed relative to the housing, the member defining a first surface separated from a second surface by an axial distance relating to a separation between the first position and the second position; a lever assembly rotationally supported by the shaft, the lever assembly comprising at least one projection, the lever assembly rotatable about the shaft and relative to the housing to move the at least one projection from engaging the first surface to engaging the second surface, the movement of the lever to
  • the member defines a first collar with the first surface defining a first recess and the second surface defining a second recess, the collar comprising a ramp separating the first recess from the second recess.
  • the lever assembly comprises a second collar defining the projection, the projection defining a point to engage the first recess, and translate the shaft by moving along the ramp to the second recess when the lever assembly is moved.
  • the brake arm comprises a spring arranged to bias a pivotal coupling of the brake arm to the frame, the spring to bias the brake arm toward the brake arm adjustment assembly to provide a detent function between the first collar and the second collar.
  • the exercise machine wherein the spring is a torsion spring.
  • the exercise machine wherein the first collar defines a third recess separated from second recess by a second ramp, the third recess associated with a third position of the brake arm associated with a third braking force to be induced on the flywheel.
  • the exercise machine comprising: the housing comprising a tube; a knob coupled with the shaft, the shaft defining a threaded end; a connector threadably engaged with the shaft, the connector translationally supported in the tube and rotatably fixed, the connector coupled with the brake arm; and whereby the shaft is arranged such that rotation of the shaft finely adjusts the brake arm through a plurality of positions including at least the first position, the second position and the third position.
  • the knob defines a cavity to receive the tube when a user depresses the knob over the tube to drive a brake pad in the brake arm against the wheel and wherein the wheel is a flywheel.
  • the exercise machine wherein the frame is an exercise bicycle frame.
  • the at least one resistance element comprises at least one magnet and the wheel comprises a flywheel, the at least one magnet positioned proximate the flywheel, and the first position associated with a first braking force induced on the flywheel wheel and the second position associated with a second braking force induced on the flywheel.
  • a second aspect of the present invention provides a method of adjusting braking force of a flywheel comprising: receiving a rotational force on a shaft, the rotational force threadedly translating the shaft to move an arm supporting at least one magnet to position the magnet relative to a flywheel at a first position; receiving a second rotational force to translate the shaft a fixed distance to move the arm from the first position to a second position, the fixed distance being more than one degree of rotation of the shaft.
  • Embodiments of the present disclosure involve an exercise machine, such as an exercise bicycle or an indoor cycle, comprising a frame supporting a wheel.
  • a brake arm may be pivotally coupled with the frame and moveable between at least a first position and a second position.
  • the brake arm may include at least one resistance element, which may be a friction pad or magnets, positioned proximate the wheel.
  • the first position is associated with a first braking force on the wheel and the second position is associated with a second braking force on the wheel where the second braking force is greater than the first braking force.
  • the exercise machine may further include a brake arm adjustment assembly including a housing coupled with the frame, the housing translationally and rotatable supporting a shaft.
  • a member such as a collar, may be operably fixed relative to the housing, the member defining a first surface separated from a second surface by a distance relating to a separation between the first position and the second position.
  • a lever assembly may be operably coupled with the shaft, the lever assembly including at least one projection, which may be provided through a plurality of teeth on a tooth collar. The lever assembly may be moveable relative to the housing to move the at least one projection from engaging the first surface to engaging the second surface, the movement causing the shaft to translate and move the brake arm from the first position, associated with the first surface, to the second position, associated with the second surface.
  • an exercise machine including a frame supporting a wheel.
  • a member may be pivotally coupled with the frame and moveable between at least a first position and a second position, the member including at least one resistance element positioned proximate the flywheel and the first position associated with a first braking force on the flywheel and the second position associated with a second braking force on the wheel, the second braking force greater than the first braking force.
  • a shaft may be translationally and rotatably supported relative to the frame and the shaft is coupled with the member.
  • a detent member may be operably fixed relative to the housing, the member defining a first surface separated from a second surface by a distance relating to a separation between the first position and the second position.
  • a lever assembly may be operably coupled with the shaft, the lever assembly including at least one projection, the lever assembly moveable to cause the at least one projection to engage the first surface or the second surface to move the member between the first position and the second position.
  • an exercise machine such as indoor cycle, may include a multi-function wheel brake actuator.
  • a braking force may be induced on a wheel, such as through eddy currents or frictionally, by finely or coarsely adjusting the brake actuator.
  • the brake actuator may thus include a knob whereby a user may finely adjust the braking force on the wheel and a lever to actuate interval settings whereby the brake actuator provides set positions of braking resistance.
  • the exercise machine may further include a pop-pin assembly with an over-center cam mechanism to clamp members together.
  • the pop-pin assembly may also include a fine adjustment to adjust the clamping force. So, for example, the seat stem may be clamped to the seat tube, or the handlebar stem clamped to the head tube, with a lever actuating the over center mechanism.
  • Embodiments of the present disclosure involve an exercise machine, such as an indoor cycle, and mechanisms for adjusting braking resistance of a wheel or fixing one member relative to another member.
  • a multifunction brake actuator is provided that allows a user to both finely adjust braking force and coarsely adjust braking force, which may be useful for interval training when used in an exercise bicycle.
  • the exercise machine includes a flywheel and a brake arm that may be moved relative to the brake arm to position magnets to induce a braking force on the flywheel through eddy currents.
  • the brake actuator may also be used with a friction resistance element to create a frictional braking force on a wheel. A person using the exercise machine must use some amount of power to overcome the induced braking force.
  • the brake actuator allows a user to finely adjust the braking force by rotating a knob.
  • the brake actuator also allows a user to turn a lever to coarsely adjust the brake arm between one of a plurality (e.g., three interval settings) different interval settings where different set resistances are placed on the wheel.
  • the baseline for the interval settings may be established by fine adjustment.
  • the user may also fix one member to another member through a locking assembly, which may be a pop-pin assembly.
  • a locking assembly which may be a pop-pin assembly.
  • the locking assembly is released so that the seat or handlebars may be raised or lowered.
  • the pin assembly engages the pin assembly to lock the members.
  • the pin assembly includes an over-center cam assembly that allows a user to lever a pin into a hole to tightly couple any two members.
  • the pin assembly includes a fine adjustment that allows a user to adjust the clamping force.
  • the exercise bicycle is configured for use by a variety of riders in a club environment or for a single or limited number of riders in a home or other personal use environment.
  • the exercise bicycle includes a frame 12 adjustably supporting an adjustable seat assembly 14 at the rear of the frame and adjustably supporting an adjustable handlebar assembly 16 at the front of the frame.
  • the adjustable seat and handlebar assemblies provide fore and aft adjustment of a respective seat 18 and handlebar 20. Further, the seat and handlebar assemblies may be vertically adjusted and fixed at various possible positions.
  • the exercise bicycle provides for many different possible seat and handlebar positions to fit different riders and to provide riders with different configurations depending on the exercise being performed.
  • seat and handlebar adjustment assemblies that may be used are described in U.S. patent 8,827,871 titled “Exercise Bicycle Frame with Bicycle Seat and Handlebar Adjustment Assemblies,” issued on Sept. 9, 2014.
  • the frame includes a seat tube 22 that receives a seat post or "stem" portion 24 of the seat assembly 14.
  • the seat post may be moved up and down relative to the seat tube to adjust the height of the seat assembly, and particularly to adjust the height of the seat 18 that is a part of the seat assembly.
  • a pop pin 26 is connected with the seat tube (second member) and is configured to engage one of a plurality of apertures 28 defined in the seat post (first member), and thereby secure the seat at a desired height.
  • the pop pin may be spring-loaded such that it is biased in the locked position engaging the aperture.
  • the pop pin is shown extending forwardly from the seat tube. This configuration provides easy access for a rider to adjust the seat up or down. In many instances, ease of seat height adjustment is simply to accommodate riders of different heights.
  • the pop pin is positioned for easy access by the rider. It is possible, however, to position the pop pin on the back side of the seat tube or at another location. Additionally, it is possible to use other mechanisms to facilitate seat height adjustment with or without pop pins. For example, a pawl on the fore and aft seat and handlebar assemblies may be used to vertically adjust the seat post (or tube) as well as the handlebar post.
  • the seat tube is rearwardly angled at approximately 72 degrees.
  • the seat tube angle along with other adjustment and dimensional relationships discussed herein, is optimized so that riders of all sizes can best fit the exercise bicycle.
  • the seat tube 22, along with other frame members discussed herein, is extruded aluminum. Other frame member shapes and materials may be used, such as steel square tubing or steel round tubing, in the construction of the frame assembly. However, the extruded aluminum race track shaped tubing provides a unique balance between strength, overall exercise bicycle weight and aesthetic appearance.
  • the seat post is shown as telescoping out of the seat tube, this relationship may be reversed such that the post fits over the tube. This relationship may also be reversed for other tube and post arrangements discussed herein.
  • a down tube 32 extends from a lower rear area of the exercise bicycle to an upper forward area of the exercise bicycle.
  • the down tube extends between a mid-portion of the seat tube 22 and supports a head tube 34 at the forward end of the down tube.
  • the down tube is also a racetrack type extruded aluminum member.
  • the down tube in one particular arrangement, is curved descending at a relatively steeper angle 36 at the head tube and curving to a shallower angle 38 at the seat tube.
  • the down tube is welded to the seat tube, although other means of attachment and arrangements are possible.
  • a bottom bracket tube 40 extends downward and rearward from the down tube to a bottom of the seat tube.
  • the bottom bracket tube connects to the seat tube below the down tube.
  • the bottom bracket tube supports a bottom bracket 42, which in turn supports a crank assembly 44.
  • the bottom bracket tube, down tube and seat tube collectively form a structurally rigid triangle 46.
  • the head tube 34 is connected to the front of the down tube 32.
  • a portion 48A of the head tube extends upwardly from the down tube and a portion 48B of the head tube extends downwardly from the head tube.
  • the head tube (second member) receives a handlebar post 50 (first member) that extends downwardly from the fore and aft adjustable handlebar assembly 16.
  • the handlebar post may be moved vertically relative to the head tube to adjust the height of a handlebar assembly, and particularly to adjust the height of a handlebar 20 of the handlebar assembly.
  • a second pop pin 52 is connected with the head tube 34 and is configured to engage one of a plurality of apertures (not shown) defined in the handlebar post, and hence secure the handlebars at a desired height.
  • Other mechanisms may also be used in place of the pop pin, and the position of the pop pin or any other mechanism may be altered in alternative exercise bicycle implementations.
  • a front fork assembly 54 which supports a flywheel 56 between opposing left 58 and right 60 fork legs, is coupled to the down tube 32 at a point between the head tube 34 and the seat tube 22, and proximate the head tube.
  • the forks are set at about the same angle as the seat tube.
  • the exercise bicycle discussed herein is particularly configured for indoor cycling and therefore includes a flywheel. It is nonetheless possible to deploy the frame and other components discussed, whether alone or in combination, in an exercise bicycle that does not include a flywheel, to use different sized flywheels or to position the flywheel and frame members differently.
  • the exercise bicycle further includes the crank assembly 44 configured to drive the flywheel 56.
  • a drive sprocket is rotatably supported in the bottom bracket 42.
  • a belt (not shown, behind the cover 62) connects the drive sprocket to the flywheel sprocket, although other mechanisms, such as a chain, may be used to connect the sprockets.
  • the drive sprocket is fixed to a pair of crank arms and the flywheel is fixed to the flywheel sprocket such that the drive sprocket and flywheel sprocket do not freewheel.
  • clockwise rotational force on the crank arms such as in conventional forward pedaling, rotates the flywheel in a clockwise manner.
  • the spinning flywheel will continue, via the belt, to drive the crank arms. It is, however, possible to include freewheel mechanisms with the drive or flywheel sprocket or other components. As discussed below, a rider may rapidly stop the spinning flywheel and the associated crank arm rotation by depressing a multi-function brake actuator 64.
  • brake arm 66 is controlled with a multi-function brake actuator 64.
  • the brake arm supports one or more permanent magnets 67 that induce eddy currents in the flywheel, depending on the proximity of the magnets to the flywheel.
  • the induced resistance on the flywheel by the relative position of the magnets determines how much power is required to spin the flywheel.
  • the exercise bicycle or any other exercise machine using a rotating wheel, such as an elliptical machine or recumbent bike may also use a brake arm that presses a friction element on a wheel to create a frictional resistance rather than a magnetic resistance.
  • the friction element may be in the brake arm or provided directly by the brake actuator.
  • the brake arm has a friction element, such as a felt pad or the like, that pushes on the wheel to create resistance.
  • Rotating the knob in such an arrangement places greater force on the friction pad and hence induces greater resistance to rotation of the wheel.
  • rotation of the flywheel relative to the magnets induces eddy currents in the flywheel that creates braking power ranging from 40 watts, with little or no magnet induced resistive power, to about 700 watts or greater depending on the rpm of the flywheel when the magnets are positioned.
  • the magnets are positioned adjacent to but not in contact with an outer ring 68 of the flywheel.
  • one or more pairs of magnets are positioned substantially equidistant from opposing sides of the flywheel.
  • Braking power (and hence the amount of power required by a rider to spin the flywheel) may be adjusted depending on the position of the magnets relative to the flywheel.
  • the brake arm actuator is used to pivot the brake arm relative to the flywheel to adjust braking resistance or otherwise the power required to turn the flywheel.
  • the brake actuator 64 may provide fine adjustment, coarse adjustment, and provide for immediate flywheel braking to cause a complete stop, and hence is referred to herein as a multi-function actuator. It possible that an implementation may provide only one or two of the three disclosed functions, and hence may not be multi-function. Nonetheless, with reference to the multi-function brake actuator illustrated, a user may rotate a knob 70 to move the brake arm downward or upward and finely adjust the braking force imparted on the flywheel 56.
  • Figs. 4A , 4B , and 4C are section views of the brake actuator and brake arm (and other components) and illustrating the brake actuator finely adjusted at an upper most position (least braking resistance), a mid-position and a lower most position (greatest braking resistance).
  • a user may also actuate an interval lever 72 to move the brake arm between a plurality of coarse adjustment settings where the brake arm moves a fixed distance between settings, and hence moves the brake arm between a plurality of different resistance settings.
  • Figs. 5A , 5B , and 5C illustrate the interval lever, the actuation of the brake actuator and the position of the brake arm in three possible interval positions (upper, middle and lower) associated with three relative degrees of braking resistance ranging from a relatively lower resistance, to a relatively higher resistance with a mid-level resistance between.
  • Such a coarse adjustment may be useful in interval training where a user rides between a recovery resistance (the upper position) and one or more training resistances (the middle and lower positions) where it takes more power to spin the flywheel relative to the recovery resistance.
  • the user may push down on the knob causing the actuator to press the brake arm down to engage a mechanical friction brake to stop the flywheel.
  • the actuator may press the brake arm down to engage a mechanical friction brake to stop the flywheel.
  • the brake arm 66 is pivotally mounted at a bracket 74 coupled with a bottom of the head tube 34.
  • the brake arm extends rearwardly and downwardly from a pivot 76.
  • a torsion spring 78 is coupled to the brake arm at the pivot 76 and provides an upward force on the brake arm, and also provides a return or upward force on components of the brake actuator as discussed in more detail herein.
  • a coil spring, compression spring, extension spring, or other spring may be positioned between the brake arm and the frame to provide the return force.
  • the brake arm Distal from the pivot, the brake arm has a clam shell opening 80 defining a channel configured to receive and secure a magnet assembly 82 housing the magnets 67.
  • the brake arm is mounted generally above the flywheel, and the discussion herein refers to moving the brake arm downward or upward to induce more or less braking power, respectively.
  • the brake arm and actuator may be positioned in various different ways to cause relative movement of the brake arm (and magnets) relative to the flywheel.
  • the actuator might be positioned to face a seated rider, and the brake arm might move fore and aft to achieve resistance changes.
  • the brake actuator might be employed with magnets coupled directly to a feature of the brake actuator rather than a brake arm.
  • the pivotal position of the brake arm relative to the flywheel may be finely adjusted by way of the multifunction brake adjustment assembly.
  • the brake actuator includes a tube 84 fixed to the down (or top) tube 32 of the exercise bicycle 10. Many of the functional components of the actuator are supported in, or relative to, the tube.
  • the knob is coupled with a shaft 90 extending through the tube.
  • the knob 70 defines a cavity 86 that fits over a top portion 88 of the support tube 84.
  • the tube defines a circular cross section.
  • the tube may be of other shapes and dimensions, and serves as a housing and structural support for various actuator components.
  • the shaft 90 Proximate the knob 70, the shaft 90 extends through a bore (or aperture) defined in a cap 92 pressed into the top of the tube.
  • the end cap defines a top collar 94 above the tube and of approximate the same outer diameter as the tube.
  • the collar retains the cap at the top of the tube.
  • the cap also defines an extension 96 that extends within the tube and is about the same inside diameter of the tube.
  • the cap may be press fit, threaded, or otherwise secured in the tube.
  • the shaft defines a threaded portion 98, distal the knob 70, to which is coupled a brake arm connector 100.
  • the threaded portion of the shaft is connected at a threaded aperture 102 defined in the connector.
  • the brake arm connector is translationally supported in the tube but rotationally fixed.
  • An end 99 of the connector is coupled with the brake arm 66.
  • a friction element or magnetic element may, however, be operably connected directly to the connector.
  • rotating the knob causes rotation of the shaft 90 to translate the connector within the tube through the interaction between the threaded portion of the shaft and the threaded aperture.
  • rotating the knob 70 finely pivots the brake arm relative to the flywheel to adjust braking power to whatever braking resistance is desired by the rider.
  • the tube defines a pair of opposing slots 104 at an end proximate the brake arm.
  • the slots run longitudinally along a lower length of the tube, and are positioned with about 180 degrees of separation.
  • the connector includes a pair of keys 106 that fit with the respective slots.
  • Course or "interval” adjustment is achieved by rotating the interval lever 72 to cause the shaft 90 to be moved between a plurality of set positions.
  • the lever can cause the shaft to move between three distinct positions and hence move the brake arm between three distinct positions, such as illustrated in Figs. 5A-5C .
  • the lever is part of a lever assembly 107 operably coupled with the shaft.
  • the interval adjustment acts in concert with fine adjustment.
  • a user first sets the fine resistance for one of the different interval settings, and then the interval resistances are based on the fine adjustment. So, for example, a user may finely adjust resistance, as discussed above, with the interval lever in the upper most interval position, which might be the easiest or recovery resistance.
  • the resistance will be relative to the set recovery resistance, such that when the user returns the lever to the upper position, the resistance will be as finely adjusted.
  • the user can finely adjust any of the different positions.
  • the lever assembly includes a tooth collar 108 rotationally supported on the shaft by a pair of opposing bushings 110.
  • the tooth collar defines four equidistantly spaced teeth 112 projecting upwardly from an annular surface 114 of the collar.
  • the teeth interact with a plurality of detent ramps 116 defined on a detent, or interval, ramp collar 117 to cooperatively drive the shaft and brake arm through the interval positions.
  • the lever assembly also includes a sleeve 118 of a slightly larger outside diameter than the tube 84.
  • the sleeve moves both rotationally and translationally relative to the tube when the lever is actuated.
  • the sleeve and lever arm are connected to the tooth ring by way of an interconnecting member 120 extending between the collar 108 and the sleeve/lever arm.
  • the sleeve is separated by a gap 122 with the sleeve on the outside of the tube and the collar on the inside of the tube.
  • the interconnecting member extends through a slot 124, in the form of an inverted T, defined from the top of the tube, at the cap, downward.
  • the slot defines a relatively wider section 126 below a relatively narrower section 128.
  • the lever handle and interconnecting members moves within the wider lever slot portion between the upper right corner (upper, lower resistance interval), downward and across, to the lower left corner (lowest, greatest resistance interval).
  • the ramps and collar might be reversed such that actuation of the lever moves it from the upper left corner, downward and across to the lower right corner.
  • the slot is sized and dimensioned to accommodate the lever through its range of motion both rotationally and translationally relative to the tube.
  • the respective teeth 112 of the tooth collar 108 interact with a respective plurality of detent ramps 116 defined in the interval ramp collar 117.
  • the interval ramp collar is positioned below the cap 92 and above the lever assembly.
  • the interval ramp collar defines a first bore 119 or aperture through which extends the shaft.
  • the interval collar also defines a second bore 121, larger than the first, that supports a coil spring 123 fixed between the cap and the collar, which takes up any slack in the components within the tube.
  • the interval collar also defines a tab 130 projecting from a side of the collar and received in the upper 128, narrow, portion of the inverted T-slot. The tab prohibits the collar from rotating.
  • interval ramp/detent structures 116 The annular surface of the interval collar facing the tooth collar defines a plurality of interval ramp/detent structures 116.
  • Each ramp/detent structure provides three detent or "interval" locations.
  • an interval structure defines a first - or, upper - detent 132A defined on the collar surface from which project the ramp/detent structures.
  • Each ramp/detent structure defines a first ramp 134A and a second ramp 134B with the first, a second (or “mid") 132B, and a third - or, lower - detent 132C separated by the first ramp and the second ramp.
  • a tooth has a long face 136A intersecting a short face 136B to define a point 138. With the points engaging the upper detents 132A, the long face 136A of each tooth abuts the first (upper) ramp. In this position, the brake arm is in its upper interval position (lowest braking resistance of the three interval resistances). Further, in this position, the interval lever and interconnecting member are positioned at the upper right corner of the larger width portion of the inverted T-slot.
  • the brake arm 66 moves relative to the flywheel from a first position (e.g. as shown in Fig. 5A ), associated with the upper detent, to a second position (with greater resistance than the first position) associated with the mid-detent (e.g., as shown in Fig. 5B ).
  • the travel distance of the brake arm is set by the distance between the upper detent and the mid-detent (distance D1).
  • a user may rotate the lever clockwise (to the lower detent) or counterclockwise back to the upper detent. If clockwise, the long faces of the teeth are abutting the respective lower ramps 134B. Rotating the lever pushes the tooth face against the ramp, pushing the lever arm assembly and the attached shaft downward so that the brake arm moves relative to the flywheel to a third position (with greater resistance than the second position).
  • the travel distance of the brake arm is set by the distance between the mid-detent and the lower detent (distance D2). Due to the return or upward force on the brake arm due to the torsion spring 78, the interaction of the teeth and detent notches act as detents due to the retention of the teeth in a detent caused by the spring force.
  • the torsion spring force on the brake arm returns the shaft and other components to the normal position (fully upward), after the user stops pushing on the brake knob.
  • the interaction of the teeth and the detent recesses also arrests the rotation of the lever between positions and provide a discernible feeling on the lever when the teeth snap into the recesses.
  • the number and distance between distinct positions may be more or less than three, and the distance difference between positions may not be same.
  • the tooth collar may have two teeth, 180 degrees separated, and there may be only two relatively larger ramp structures on the interval ramp with two detents between an upper and lower detents, and separated by an additional ramp providing four interval positions. Other similar variations are possible.
  • the brake adjustment assembly Besides the brake adjustment assembly allowing a rider to adjust the brake force by finely pivoting the brake arm to position the magnets relative to the flywheel or by using the interval lever to coarsely adjust the brake force, the brake adjustment assembly also allows a rider to stop the flywheel by forcing a brake pad 183, transverse between the magnet in the upper part of the housing 80, down on flywheel 56.
  • the brake adjustment assembly includes the brake knob 70 fixed to the shaft 90.
  • the brake knob includes or otherwise defines the cavity 86 suitable to receive the top of the tube and for the knob to fit over the tube and any components associated therewith.
  • a rider may press downward on the handle which moves the shaft 90 downward within the tube.
  • the cavity 86 of the knob is pressed downward over the tube 84.
  • the shaft through engagement with the brake arm, pivots the brake arm 66 downward such that the brake pad 83 contacts the flywheel.
  • the spring 78 acting on the brake arm pushes the shaft and knob upward to disengage the pad and release the flywheel.
  • a pop-pin 26 that may be finely adjusted and then actuated to engage or disengage through use of a lever.
  • the pop-pin secures a pin 202 into a mating hole but also does so tightly.
  • the present pop-pin allows a user to disengage, adjust and engage (or vice versa) - effectively eliminating two actions.
  • the loosening and tightening steps that are eliminated allow the user to make quick and easy adjustments that are simply not possible through conventional arrangements.
  • the clamping force tightly locks the members in a way not possible or which would substantially greater effort in conventional design.
  • the pop-pin which may also be referred to herein as a pop-pin assembly, is coupled to a first tube (e.g. seat tube 22 or head tube 34) at a pin tube 204.
  • the pop-pin is also a form of an over-center clamp.
  • the pin tube extends from and is coupled to the first tube.
  • the first tube houses a second tube (e.g. the seat post 24 or the handle bar post 50) defining a plurality of holes 206.
  • the first tube is the seat tube and the second tube is the seat stem.
  • the first tube is fixed relative to the second tube (while referenced as “tubes,” it should be recognized that other members, besides tube style structures may be used).
  • the second (inner) tube may be adjusted relative to the first (outer) tube (e.g. to raise or lower the seat 18 or the handlebars 20).
  • the pin tube 204 is fixed in a corresponding opening in the first tube.
  • the pin tube defines a pin aperture 208, which is a channel through which the pin 202 traverses between an engaged (clamped) position and a disengaged (release) position.
  • the pin tube includes a flange 210 to which a pivot bracket and housing 212 is mounted.
  • the housing supports many of the functional components of the pop-pin.
  • the housing may further include a cover 213, within which are many of the various functional components of the assembly.
  • the pin includes a collar 214 defining a bore 217. As shown, the pin portion 202 extends into one of the apertures 206 in the tube fixing the relative movement between the tubes.
  • the pop-pin assembly or more generally engagement assembly, is discussed with respect to a pin that engages an aperture. It is possible, however, that the shaft may support some other form of structure such as a flat face or a roughened face that presses on the inner tube to form a resistance fit, or presses on and depresses a ball detent or other structure in the tube. Hence, the shaft creates the engagement between the tubes, and the description of a pin is but one way.
  • an outward face 219 of the collar 214 abuts the tube circumferentially around the pinned aperture 206A.
  • the outward face of the pin collar presses on the tube, and depending on the arrangement, will tightly couple the first tube to the second tube by pressing the second tube (e.g., seat post or handlebar stem) against the wall opposing the wall to which the pin tube is attached thereby tightening the tubes to reduce or eliminate any sloppiness or looseness between the tubes.
  • An adjustment shaft 216 is connected to the pin at the bore 217.
  • the adjustment shaft is connected to the pin with a retaining pin 218 that extends through an aperture in the pin collar and an aligned aperture in the adjustment shaft.
  • a retaining pin 218 may be defined in the adjustment shaft whereby the ball portion couples the adjustment shaft to the apertures in the pin collar.
  • a retaining pin may be threaded and engage a corresponding threaded bore in the adjustment shaft. Regardless of the mechanism, however, the threaded shaft is coupled with the pin.
  • an adjustment knob 220 is coupled with the shaft 216. Between the knob and the pin, the adjustment shaft defines a threaded portion 222 that engages a corresponding threaded bore 224 defined in a drive shaft 226.
  • the adjustment shaft is translationally and rotatably supported in a smooth bore portion 228 of the drive shaft. By rotating the knob, the adjustment shaft rotates and through the interaction between the treads and threaded bore, finely adjusts the position of the adjustment shaft and pin relative to the drive shaft 226.
  • the drive shaft 226 is translationally supported in a guide passage 230 defined or otherwise provided in the housing.
  • the clamp lever 200 is coupled to the drive shaft at a cam roller 232.
  • the cam roller extends from the drive shaft, through a slot 234 in the guide passage, and is supported in a cam slot 236 defined in or otherwise provided with the clamp lever.
  • the drive shaft includes a pair of cam rollers (232A, 232B) extending from opposing sides of the drive shaft, and through opposing slots (234A, 234B) in the guide passage.
  • the clamp lever defines opposing cam slots (236A, 236B) defined in opposing ears (238A, 238B) extending from a handle portion of the lever.
  • the lever is pivotally coupled with the housing at a pivot axle 240. Generally speaking, pivoting of the lever causes the cam slot to extend the drive shaft to engage the pin or to retract the drive shaft to disengage the pin from a hole 206.
  • a first spring 242 which may be a coil spring, is positioned between the tolerance adjustment knob 220 and the drive shaft.
  • the first spring provides a force between the drive shaft and the knob to put pressure on the knob to hold it in place.
  • the knob 220 includes a collar 244 that traps the adjustment knob and the attached adjustment shaft in the guide passage 230.
  • a second spring 246 is positioned between a spring collar 248 of the drive shaft and the housing 212.
  • the housing includes a countersunk hole 250, which may be a bore, formed, molded, etc., depending on the structure of the housing, sufficient to receive the collar 248 and a portion of the pin tube 204 extending from flange 210.
  • the guide passage defined in one example as a cylinder smaller than the countersunk hole, is within the countersunk hole.
  • the second spring may be a coil spring surrounding the guide shaft, and abutting the wall of the hole surrounding the guide passage. The second spring forces the pin into the hole by driving the drive shaft outward. This ensures that the pin engages firmly even if the lever is not fully clamped (pushed inward toward the tubes).
  • a stem (or second tube) fits within a tube (or first tube) with some amount of space between the wall (in the case of circular tubes) or walls (in the case of rectangular, trapezoidal or square tubes).
  • the stem may be loose within the seat tube unless one or more walls of the tubes are pressed together to frictionally couple the tubes.
  • the pin collar 214 presses the stem (e.g.
  • the pop-pin 26 is provided with a fine adjustment to change the pin position relative to the drive shaft. Retracting the adjustment shaft compensates for a relative smaller gap between tubes and extending the adjustment shaft compensates for a relatively larger gap between the tubes.
  • Actuating the properly adjusted pin involves pivoting the clamp lever.
  • the cam slots each define an asymmetric curved slot 236 with a first end 254 and a second end 256.
  • the first, upper, end defines a fully withdrawn position of the drive shaft.
  • the second, lower, end defines a fully extended position of the drive shaft. Since the cam roller 232 is trapped in the slot, rotating the lever and the cam slot cause the cam roller and drive shaft to move between the fully extended and withdrawn positions.
  • Fig. 18A illustrates the pop pin in a neutral position
  • Fig. 18B illustrates the pop pin in a clamped (engaged or over-center) position
  • Fig. 18C illustrates the pop pin in a release (or unengaged).
  • the stem or inner tube
  • the outer tube e.g., the seat may be raised or lowered
  • the lever is pivoted away from the tubes and the pin and drive shaft are withdrawn.
  • the spring 246 will push the drive shaft outward along with the pin.
  • the spring force will cause the pin to push into the hole as shown in Fig.
  • the user may push the lever arm toward the tubes forcing the collar against the inner tube wall and causing it to abut the adjacent wall of the outer tube thereby clamping the tubes together to eliminate or substantially reduce wobble or any slop between the tubes.
  • the pin When the pin is properly adjusted relative to the shaft, the user will apply a force sufficient to push the inner tube rearward and the cam roller will move along the cam slot until it is positioned in the most downward portion of the cam slot (or most upward if the cam slot, handle orientation were reversed - handle oriented upward).
  • the collar includes an O-ring, the compression of the O-ring when the lever is fully engaged helps set the pin and the lever in the fully engaged position, and assist the cam roller in going over center in the cam slot.
  • the center position is proximate the fully extended (locking position) but not at the end of the slot end.
  • the center position is illustrated in Fig. 14 , where the arc of the cam pushes the cam roller the furthest forward compressing the O-ring.
  • the pin may be tightly pressed against the inner tube wall and pressing it tightly against the outer tube such that the O-ring is compressed.
  • the lever is fully in the engaged (locking or over-center) position, the compression of the O-ring is relaxed slightly while the pin maintains the tight clamping of the tubes.
  • the cam slot pushes the drive shaft slightly less forward relative to the center position.
  • the over-center position prohibits the spring force on the drive shaft from back-driving the drive shaft. Thus, a user must pull the lever to remove the drive shaft.
  • a link or links may be placed between the lever and the drive shaft.
  • Fig. 20A is a side view of a pop-pin assembly in a locked (over-center) engaged position and Fig. 20B is a side view of the pop-pin assembly in the unlocked (disengaged) position.
  • a link 300 is coupled between the lever 302 and the drive shaft 304. More specifically, the lever includes a link pivot or axle 306 proximate a lever axle 308.
  • the link pivot is positioned on an ear 310 extending forwardly from the lever.
  • a second link pivot 312 is connected with the drive shaft 304.
  • the pivot may extend through a slot 316 in a fashion similar to the cam roller.
  • the link In the disengaged position, the link is aligned with the drive shaft. Pressing forward (toward the members), places a forward and upward force on the link, which force translates to pushing the drive shaft (and pin) forwardly to engage the pin. As the lever is pushed forward (against the spring force on the drive shaft), the link pivots upwardly and through a path defined by the path of the link pivot 306 in an arc about the lever axle 308.
  • the center position which may also compress an O-ring or other resilient member of the pin or other member pressing on the tubes, is where the three axles (306, 308 and 312) align as shown in Fig. 20B .
  • a lever stop 318 is positioned to allow the lever to rotate slightly past the alignment (over center orientation), which takes a slight amount of force off the pin but keeps the members locked together. Additionally, by going over center, the over-center linkage prohibits the spring force from back-driving the drive shaft. As with the cam follower embodiment, a user must pull the lever to remove the shaft and disengage the pop-pin.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
  • Braking Elements And Transmission Devices (AREA)

Claims (11)

  1. Trainingsgerät (10), das Folgendes umfasst:
    einen Rahmen (12), der ein Rad (56) trägt,
    einen Bremsarm (66), der schwenkbar mit dem Rahmen verbunden und zwischen mindestens einer ersten Stellung und einer zweiten Stellung beweglich ist, wobei der Bremsarm mindestens ein Widerstandselement (67) einschließt, das nahe dem Rad angeordnet ist, die erste Stellung mit einer ersten Bremskraft an dem Rad verknüpft ist und die zweite Stellung mit einer zweiten Bremskraft an dem Rad verknüpft ist, wobei die zweite Bremskraft größer ist als die erste Bremskraft, und
    eine Bremsarm-Einstellbaugruppe (64), die Folgendes umfasst:
    ein Gehäuse (118), das im Verhältnis zu dem Rahmen fixiert ist, wobei das Gehäuse verschiebbar und drehbar einen Schaft (90) trägt,
    ein Element, das wirksam im Verhältnis zu dem Gehäuse fixiert ist, wobei das Element eine erste Fläche definiert, die von einer zweiten Fläche durch eine axiale Entfernung getrennt ist, die in Beziehung zu einem Abstand zwischen der ersten Stellung und der zweiten Stellung steht,
    eine Hebelbaugruppe (107), die drehend durch den Schaft getragen wird, wobei die Hebelbaugruppe mindestens einen Vorsprung (112) einschließt, wobei die Hebelbaugruppe um den Schaft und im Verhältnis zu dem Gehäuse drehbar ist, um den mindestens einen Vorsprung von einem In-Eingriff-Nehmen der ersten Fläche zu einem In-Eingriff-Nehmen der zweiten Fläche selektiv zu bewegen, wobei die Bewegung der Hebelbaugruppe bewirkt, dass sich der Schaft um die Entfernung verschiebt, welche die erste Fläche und die zweite Fläche trennt, und den Bremsarm von der ersten Stellung, die mit der ersten Fläche verknüpft ist, zu der zweiten Stellung, die mit der zweiten Fläche verknüpft ist, bewegt.
  2. Trainingsgerät nach Anspruch 1, wobei das Element eine erste Manschette (117) definiert, wobei die erste Fläche eine erste Aussparung (132A) definiert und die zweite Fläche eine zweite Aussparung (132B) definiert, wobei die Manschette ferner eine Rampe (134A) umfasst, welche die erste Aussparung von der zweiten Aussparung trennt.
  3. Trainingsgerät nach Anspruch 2, wobei die Hebelbaugruppe eine zweite Manschette (108) umfasst, die den Vorsprung definiert, wobei der Vorsprung eine Spitze (138) definiert, die die erste Aussparung in Eingriff nimmt, und den Schaft durch Bewegen entlang der Rampe zu der zweiten Aussparung verschiebt, wenn die Hebelbaugruppe bewegt wird.
  4. Trainingsgerät nach Anspruch 3, wobei der Bremsarm eine Feder (78) einschließt, die eine Schwenkkupplung des Bremsarms mit dem Rahmen vorspannt, wobei die Feder den Bremsarm zu der Bremsarm-Einstellbaugruppe hin vorspannt, um eine Rastfunktion zwischen der ersten Manschette und der zweiten Manschette bereitzustellen.
  5. Trainingsgerät nach Anspruch 4, wobei die Feder eine Torsionsfeder ist.
  6. Trainingsgerät nach Anspruch 4, wobei die erste Manschette ferner eine dritte Aussparung (132C) definiert, die durch eine zweite Rampe (134B) von der zweiten Aussparung getrennt wird, wobei die dritte Aussparung mit einer dritten Stellung des Bremsarms verknüpft ist, die mit einer dritten Bremskraft verknüpft ist, die an dem Rad erzeugt wird.
  7. Trainingsgerät nach Anspruch 6, das ferner Folgendes umfasst:
    das Gehäuse, das eine Röhre (84) umfasst,
    einen Knauf (70), der mit dem Schaft verbunden ist, wobei der Schaft ein Gewindeende (98) definiert,
    einen Verbinder (100), der in Gewindeeingriff mit dem Schaft gebracht ist, wobei der Verbinder verschiebbar in der Röhre getragen und drehend fixiert wird, wobei der Verbinder mit dem Bremsarm verbunden ist, und
    wobei eine Drehung des Schafts den Bremsarm durch mehrere Stellungen fein einstellt, welche die erste Stellung, die zweite Stellung und die dritte Stellung einschließen.
  8. Trainingsgerät nach Anspruch 7, wobei der Knauf einen Hohlraum (86) definiert, um die Röhre aufzunehmen, wenn ein Benutzer den Knauf über der Röhre niederdrückt, um einen Bremsklotz (83) in dem Bremsarm gegen das Rad zu treiben, und wobei das Rad ein Schwungrad ist.
  9. Trainingsgerät nach Anspruch 1, wobei der Rahmen ein Fahrradergometer-Rahmen ist.
  10. Trainingsgerät nach Anspruch 1, wobei das mindestens eine Widerstandselement mindestens einen Magneten (67) umfasst und das Rad ein Schwungrad umfasst, wobei der mindestens eine Magnet nahe dem Schwungrad angeordnet ist.
  11. Verfahren zum Einstellen einer Bremskraft eines Schwungrades (56) eines Trainingsgeräts (10), wobei das Verfahren Folgendes umfasst:
    Aufnehmen einer ersten Drehkraft an einem Schaft (90), der schraubend mit einem Bremsarmverbinder (100) verbunden ist, wobei der Bremsarmverbinder ferner mit einem Arm verbunden ist, der mindestens einen Magneten (67) trägt, wobei die erste Drehkraft den Schaft dreht, um den Bremsarmverbinder ohne Verschiebung des Schafts schraubend zu verschieben, wobei eine Verschiebung des Bremsarmverbinders den stützenden Arm bewegt, um den Magneten in einer ersten Stellung im Verhältnis zu einem Schwungrad anzuordnen, und
    Aufnehmen einer zweiten Drehkraft an einem Hebel (72), der wirksam mit dem Schaft verbunden ist, wobei die zweite Drehkraft den Hebel dreht, um sowohl den Schaft als auch den Bremsarmverbinder zu verschieben, wobei eine Verschiebung des Schafts und des Bremsarmverbinders den Arm bewegt, um den Magneten in einer zweiten Stellung im Verhältnis zu dem Schwungrad anzuordnen.
EP16159035.1A 2015-03-10 2016-03-07 Übungsmaschine mit multifunktionalem radbremsenaktuator und verriegelungsmechanismus über totpunkt Active EP3067097B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/643,792 US9919182B2 (en) 2015-03-10 2015-03-10 Exercise machine with multi-function wheel brake actuator and over center locking mechanism
US14/643,823 US9839807B2 (en) 2015-03-10 2015-03-10 Exercise machine with multi-function wheel brake actuator and over center locking mechanism

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CN110585660A (zh) * 2018-06-13 2019-12-20 青岛大方新瑞网络科技有限公司 一种多用健身设备
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TWM599187U (zh) * 2020-05-07 2020-08-01 敦洋科技股份有限公司 健身裝置及其磁阻與煞車控制構造
CN113633929A (zh) * 2021-07-08 2021-11-12 宁波篆和科技有限公司 运动器材的刹车装置和刹车驱动器

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