US20070225127A1 - Cushion device for exercise machine - Google Patents

Cushion device for exercise machine Download PDF

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Publication number
US20070225127A1
US20070225127A1 US11/385,691 US38569106A US2007225127A1 US 20070225127 A1 US20070225127 A1 US 20070225127A1 US 38569106 A US38569106 A US 38569106A US 2007225127 A1 US2007225127 A1 US 2007225127A1
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United States
Prior art keywords
linkage
cushion device
exercise machine
cushion
vibration
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.)
Abandoned
Application number
US11/385,691
Inventor
Francis Chung Hwa Pan
Pao-Chuan Wang
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Forhouse Corp
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Forhouse Corp
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Publication date
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Priority to US11/385,691 priority Critical patent/US20070225127A1/en
Assigned to FORHOUSE CORPORATION reassignment FORHOUSE CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PAN, FRANCIS CHUNG HWA, WANG, PAO-CHUAN
Publication of US20070225127A1 publication Critical patent/US20070225127A1/en
Abandoned legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/02Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/02Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills
    • A63B22/0207Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills having shock absorbing means
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/02Games or sports accessories not covered in groups A63B1/00 - A63B69/00 for large-room or outdoor sporting games
    • A63B71/023Supports, e.g. poles
    • A63B2071/025Supports, e.g. poles on rollers or wheels

Definitions

  • the present invention relates generally to an exercise machine, and more particularly to a cushion device of the exercise machine, such as treadmill, which can absorb the vibration from various orientations.
  • Treadmill is the most popular machine to provide a place for user walking, jogging or running indoors. When user is running or walking on the treadmill, every step will give the knee joints and heel joints a reactive force. It is easy to get musculoskeletal injure when a user running or walking on the treadmill for a long time.
  • Some new treadmills are provided with a cushion device to reduce the loading of knee joints and heel joints, when user is running or walking on the treadmill.
  • the cushion device may be a spring or hydraulic pump to absorb the vibration when user is running or walking on the treadmill.
  • Such invention includes U.S. Pat. No. 5,072,928 issued to Stearns, et al. and U.S. Pat. No. 6,872,168 issued to Wang, et al.
  • cushion devices for treadmill include Eschenbach's invention (U.S. Pat. No. 6,053,848) providing a rope to be the cushion medium and the invention issued to Dalebout et al. (U.S. Pat. No. 6,821,230) providing a cushion block with holes thereon. The sizes of the holes are different, so that the block is rotated to give different cushion capacities.
  • the above cushion devices only absorb the vibration normal to the cushion device. There is a poor absorbing capacity for the vibration not normal to the cushion device.
  • the vibration not normal to the axis of the spring will provides a shear force that the spring has a weak capacity to absorb it and the shear force may damage the spring.
  • the primary objective of the present invention is to provide a cushion device of an exercise apparatus, which can absorb the vibration from various orientations.
  • a cushion device which is mounted on an exercise machine to absorb vibration, comprises a linkage having an end pivot on a bottom of the exercise machine, and an elastic member having opposite end urging the exercise machine and the linkage respectively.
  • An angle between the linkage and the ground is less than ninety degrees, such that the vibration from different orientation will transmit to the linkage and make it swing, and the elastic member is elastically deformed to absorb the vibration.
  • FIG. 1 is a perspective view of the treadmill of a preferred embodiment of the present invention
  • FIG. 2 is an exploded view of the cushion device of the preferred embodiment of the present invention.
  • FIG. 3 is a sectional view of the cushion device of the preferred embodiment of the present invention, showing the condition of unloading
  • FIG. 4 is a sectional view of the cushion device of the preferred embodiment of the present invention, showing the condition of loading
  • FIG. 5 is a sectional view of the cushion device of the preferred embodiment of the present invention, showing the nut is screwed to comprise the spring.
  • a treadmill 1 of the preferred embodiment of the present invention includes a base 10 and a deck 12 with a front end connected to the base, on which a running belt 14 and two cushion devices 18 (only show one of which in drawings) are provided.
  • Each of the cushion devices 18 has a linkage 20 , a wheel 22 , an elastic member 24 , which is a spring in the embodiment, and a mount 26 .
  • the linkage 20 has two parallel arms 28 and a plate 30 fixed to the arms 28 .
  • the plate 30 has a bore 32 between the arms 32 .
  • the arms 28 have inner ends pivoted on a bottom of the deck 12 and outer ends pivoted with the wheel 22 .
  • the wheel 22 is rested on the ground for running.
  • the mount 26 is fixed to the bottom of the deck 12 with a shaft 34 through the bore 32 of the plate 30 of the linkage 20 .
  • a nut 36 is screwed to the distal end of the shaft 34 and against the plate 30 .
  • the spring 24 is fitted to the shaft 34 with opposite ends urging the mount 26 and the plate 30 of the linkage 20 respectively.
  • the steps will provide vibrations from various orientations and transmit to the linkages 20 of the cushion devices 18 .
  • the force of vibrations form every orientation to the linkages 20 can be resolved into a normal component (Fn) and a horizontal component (Fs).
  • the normal component (Fn) will swing the linkages 20 and compress the spring 24 , as shown in FIG. 3 .
  • the spring 24 will force the linkages 20 back to the initial position, as shown in FIG. 2 .
  • the ratio of the normal component (Fn) and the horizontal component (Fs) is relative to an angle ⁇ between the linkage 20 and ground.
  • the value of the normal component (Fn) is positive related to the angle ⁇ .
  • the present invention recommends the angle ⁇ is less than 45 degrees, and more preferred, the angle ⁇ is between 25 degrees and 35 degrees.
  • the nut 36 may be screwed to adjust the pre-compression of the spring 24 .
  • FIG. 3 shows the spring 24 in the condition of less pre-compression, which provides the cushion device 18 with a “soft” cushion capacity.
  • FIG. 5 shows the nut 36 is screwed to compress the spring 24 much.
  • the cushion device 18 of FIG. 5 will provide a “hard” cushion capacity.

Abstract

A cushion device for an exercise machine, such as treadmill, includes a linkage, a spring and a mount. The linkage is pivoted on a bottom of the exercise machine, and wheel is pivoted on a distal end of the linkage. The mount is fixed to the bottom of the exercise machine, on which the spring is provided to urge the linkage. When user takes exercise on the machine, the vibration from different orientations will transmit to the linkage and make it swing, such that the spring is compressed to absorb the vibration.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates generally to an exercise machine, and more particularly to a cushion device of the exercise machine, such as treadmill, which can absorb the vibration from various orientations.
  • 2. Description of the Related Art
  • Treadmill is the most popular machine to provide a place for user walking, jogging or running indoors. When user is running or walking on the treadmill, every step will give the knee joints and heel joints a reactive force. It is easy to get musculoskeletal injure when a user running or walking on the treadmill for a long time. Some new treadmills are provided with a cushion device to reduce the loading of knee joints and heel joints, when user is running or walking on the treadmill.
  • There was a treadmill equipped with a cushion device between the deck and base. The cushion device may be a spring or hydraulic pump to absorb the vibration when user is running or walking on the treadmill. Such invention includes U.S. Pat. No. 5,072,928 issued to Stearns, et al. and U.S. Pat. No. 6,872,168 issued to Wang, et al.
  • U.S. Pat. No. 5,441,468, issued to Deckers, et al., taught a treadmill with cushion pads under the running belt to absorb vibration. Similar inventions include Buhler's invention (U.S. Pat. No. 5,542,892) and Chiu's invention (U.S. Pat. No. 6,117,053).
  • Other cushion devices for treadmill include Eschenbach's invention (U.S. Pat. No. 6,053,848) providing a rope to be the cushion medium and the invention issued to Dalebout et al. (U.S. Pat. No. 6,821,230) providing a cushion block with holes thereon. The sizes of the holes are different, so that the block is rotated to give different cushion capacities.
  • The above cushion devices only absorb the vibration normal to the cushion device. There is a poor absorbing capacity for the vibration not normal to the cushion device. For a spring cushion device, the vibration not normal to the axis of the spring will provides a shear force that the spring has a weak capacity to absorb it and the shear force may damage the spring.
  • SUMMARY OF THE INVENTION
  • The primary objective of the present invention is to provide a cushion device of an exercise apparatus, which can absorb the vibration from various orientations.
  • According to the objective of the present invention, a cushion device, which is mounted on an exercise machine to absorb vibration, comprises a linkage having an end pivot on a bottom of the exercise machine, and an elastic member having opposite end urging the exercise machine and the linkage respectively. An angle between the linkage and the ground is less than ninety degrees, such that the vibration from different orientation will transmit to the linkage and make it swing, and the elastic member is elastically deformed to absorb the vibration.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a perspective view of the treadmill of a preferred embodiment of the present invention;
  • FIG. 2 is an exploded view of the cushion device of the preferred embodiment of the present invention;
  • FIG. 3 is a sectional view of the cushion device of the preferred embodiment of the present invention, showing the condition of unloading;
  • FIG. 4 is a sectional view of the cushion device of the preferred embodiment of the present invention, showing the condition of loading; and
  • FIG. 5 is a sectional view of the cushion device of the preferred embodiment of the present invention, showing the nut is screwed to comprise the spring.
  • DETAILED DESCRIPTION OF THE INVENTION
  • As shown in FIG. 1 and FIG. 2, a treadmill 1 of the preferred embodiment of the present invention includes a base 10 and a deck 12 with a front end connected to the base, on which a running belt 14 and two cushion devices 18 (only show one of which in drawings) are provided.
  • Each of the cushion devices 18 has a linkage 20, a wheel 22, an elastic member 24, which is a spring in the embodiment, and a mount 26. The linkage 20 has two parallel arms 28 and a plate 30 fixed to the arms 28. The plate 30 has a bore 32 between the arms 32. The arms 28 have inner ends pivoted on a bottom of the deck 12 and outer ends pivoted with the wheel 22. The wheel 22 is rested on the ground for running. The mount 26 is fixed to the bottom of the deck 12 with a shaft 34 through the bore 32 of the plate 30 of the linkage 20. A nut 36 is screwed to the distal end of the shaft 34 and against the plate 30. The spring 24 is fitted to the shaft 34 with opposite ends urging the mount 26 and the plate 30 of the linkage 20 respectively.
  • As shown in FIG. 3, when an user (not shown) is running or walking on the running belt 14 of the treadmill of the present invention, the steps will provide vibrations from various orientations and transmit to the linkages 20 of the cushion devices 18. In analysis of mechanics, the force of vibrations form every orientation to the linkages 20 can be resolved into a normal component (Fn) and a horizontal component (Fs). The normal component (Fn) will swing the linkages 20 and compress the spring 24, as shown in FIG. 3. When the vibration is gone, the spring 24 will force the linkages 20 back to the initial position, as shown in FIG. 2.
  • The ratio of the normal component (Fn) and the horizontal component (Fs) is relative to an angle θ between the linkage 20 and ground. When the value of the normal component (Fn) is positive related to the angle θ. The present invention recommends the angle θ is less than 45 degrees, and more preferred, the angle θ is between 25 degrees and 35 degrees.
  • In operation, the nut 36 may be screwed to adjust the pre-compression of the spring 24. FIG. 3 shows the spring 24 in the condition of less pre-compression, which provides the cushion device 18 with a “soft” cushion capacity. FIG. 5 shows the nut 36 is screwed to compress the spring 24 much. The cushion device 18 of FIG. 5 will provide a “hard” cushion capacity.

Claims (7)

1. A cushion device, which is mounted on an exercise machine to absorb vibration, comprising a linkage having an end pivot on a bottom of the exercise machine to be swung by the vibration; and an elastic member having opposite end urging the exercise machine and the linkage respectively to be elastically deformed when the linkage is swung, wherein an angle between the linkage and the ground is less than ninety degrees.
2. The cushion device as defined in claim 1, further comprising a mount fixed to the exercise machine, which has a shaft through a bore of the linkage and a nut screwed to a distal end of the shaft, wherein the elastic member is fitted to the shaft.
3. The cushion device as defined in claim 1, further comprising a wheel pivoted on the linkage to touch the ground.
4. The cushion device as defined in claim 1, wherein the linkage includes two substantially parallel arms and a plate connected to the arms.
5. The cushion device as defined in claim 4, further comprising a wheel between the arms and pivoted thereon to touch the ground.
6. The cushion device as defined in claim 4, further comprising a mount fixed to the exercise machine, wherein the mount has a shaft though a bore on the plate with a nut screwed to a distal end thereof and the elastic member is fitted to the shaft.
7. The cushion device as defined in claim 1, wherein the angle between the linkage and the ground is preferred less than forty-five degrees.
US11/385,691 2006-03-22 2006-03-22 Cushion device for exercise machine Abandoned US20070225127A1 (en)

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Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090082176A1 (en) * 2007-09-26 2009-03-26 Icon Health & Fitness, Inc. Exercise devices, components for exercise devices and related methods
US20090124466A1 (en) * 2007-11-09 2009-05-14 Johnson Health Tech Co., Ltd. Treadmill having a compact shape
US20120178590A1 (en) * 2011-01-10 2012-07-12 Tai-Yang Lu Weight-Based Cushion-Adjusting Apparatus
US8435160B1 (en) 2011-02-07 2013-05-07 Gerald M. Clum Shock-absorbing treadmill
WO2016095862A1 (en) * 2014-12-18 2016-06-23 浙江风尚科技有限公司 Independent suspension damping mechanism for walking platform of treadmill
US20160287930A1 (en) * 2015-04-02 2016-10-06 George Moser Treadmill
US20180099180A1 (en) * 2016-10-12 2018-04-12 Icon Health & Fitness, Inc. Retractable Caster in an Exercise Machine
US10188890B2 (en) 2013-12-26 2019-01-29 Icon Health & Fitness, Inc. Magnetic resistance mechanism in a cable machine
US10238912B2 (en) * 2017-03-15 2019-03-26 Ying Liang Health Tech. Co., Ltd. Curved treadmill
US10252109B2 (en) 2016-05-13 2019-04-09 Icon Health & Fitness, Inc. Weight platform treadmill
US10258828B2 (en) 2015-01-16 2019-04-16 Icon Health & Fitness, Inc. Controls for an exercise device
US10272317B2 (en) 2016-03-18 2019-04-30 Icon Health & Fitness, Inc. Lighted pace feature in a treadmill
US10279212B2 (en) 2013-03-14 2019-05-07 Icon Health & Fitness, Inc. Strength training apparatus with flywheel and related methods
US10293211B2 (en) 2016-03-18 2019-05-21 Icon Health & Fitness, Inc. Coordinated weight selection
US10343017B2 (en) 2016-11-01 2019-07-09 Icon Health & Fitness, Inc. Distance sensor for console positioning
US10376736B2 (en) 2016-10-12 2019-08-13 Icon Health & Fitness, Inc. Cooling an exercise device during a dive motor runway condition
US10426989B2 (en) 2014-06-09 2019-10-01 Icon Health & Fitness, Inc. Cable system incorporated into a treadmill
US10433612B2 (en) 2014-03-10 2019-10-08 Icon Health & Fitness, Inc. Pressure sensor to quantify work
US10441844B2 (en) 2016-07-01 2019-10-15 Icon Health & Fitness, Inc. Cooling systems and methods for exercise equipment
US10471299B2 (en) 2016-07-01 2019-11-12 Icon Health & Fitness, Inc. Systems and methods for cooling internal exercise equipment components
US10493349B2 (en) 2016-03-18 2019-12-03 Icon Health & Fitness, Inc. Display on exercise device
US10500473B2 (en) 2016-10-10 2019-12-10 Icon Health & Fitness, Inc. Console positioning
US10543395B2 (en) 2016-12-05 2020-01-28 Icon Health & Fitness, Inc. Offsetting treadmill deck weight during operation
US10561894B2 (en) 2016-03-18 2020-02-18 Icon Health & Fitness, Inc. Treadmill with removable supports
US10625137B2 (en) 2016-03-18 2020-04-21 Icon Health & Fitness, Inc. Coordinated displays in an exercise device
US10661114B2 (en) 2016-11-01 2020-05-26 Icon Health & Fitness, Inc. Body weight lift mechanism on treadmill
CN111408101A (en) * 2020-04-21 2020-07-14 胡日都胡 Aerobic fitness equipment with buffering and vibration damping functions
US10729965B2 (en) 2017-12-22 2020-08-04 Icon Health & Fitness, Inc. Audible belt guide in a treadmill
US10953305B2 (en) 2015-08-26 2021-03-23 Icon Health & Fitness, Inc. Strength exercise mechanisms
US11058913B2 (en) * 2017-12-22 2021-07-13 Icon Health & Fitness, Inc. Inclinable exercise machine
US11451108B2 (en) 2017-08-16 2022-09-20 Ifit Inc. Systems and methods for axial impact resistance in electric motors
US11458356B2 (en) 2020-02-14 2022-10-04 Life Fitness, Llc Systems and methods for adjusting a stiffness of fitness machines

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Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7815550B2 (en) * 2007-09-26 2010-10-19 Icon Health & Fitness, Inc. Exercise devices, components for exercise devices and related methods
US20090082176A1 (en) * 2007-09-26 2009-03-26 Icon Health & Fitness, Inc. Exercise devices, components for exercise devices and related methods
US20090124466A1 (en) * 2007-11-09 2009-05-14 Johnson Health Tech Co., Ltd. Treadmill having a compact shape
US20120178590A1 (en) * 2011-01-10 2012-07-12 Tai-Yang Lu Weight-Based Cushion-Adjusting Apparatus
US8435160B1 (en) 2011-02-07 2013-05-07 Gerald M. Clum Shock-absorbing treadmill
US10279212B2 (en) 2013-03-14 2019-05-07 Icon Health & Fitness, Inc. Strength training apparatus with flywheel and related methods
US10188890B2 (en) 2013-12-26 2019-01-29 Icon Health & Fitness, Inc. Magnetic resistance mechanism in a cable machine
US10433612B2 (en) 2014-03-10 2019-10-08 Icon Health & Fitness, Inc. Pressure sensor to quantify work
US10426989B2 (en) 2014-06-09 2019-10-01 Icon Health & Fitness, Inc. Cable system incorporated into a treadmill
WO2016095862A1 (en) * 2014-12-18 2016-06-23 浙江风尚科技有限公司 Independent suspension damping mechanism for walking platform of treadmill
US9937375B2 (en) * 2014-12-18 2018-04-10 Zhe Jiang Feng Shang Technology Co., Ltd. Independent suspension vibration damping mechanism of running platform of a treadmill
US10258828B2 (en) 2015-01-16 2019-04-16 Icon Health & Fitness, Inc. Controls for an exercise device
US20160287930A1 (en) * 2015-04-02 2016-10-06 George Moser Treadmill
US9814929B2 (en) * 2015-04-02 2017-11-14 George Moser Treadmill
US10953305B2 (en) 2015-08-26 2021-03-23 Icon Health & Fitness, Inc. Strength exercise mechanisms
US10293211B2 (en) 2016-03-18 2019-05-21 Icon Health & Fitness, Inc. Coordinated weight selection
US10561894B2 (en) 2016-03-18 2020-02-18 Icon Health & Fitness, Inc. Treadmill with removable supports
US10272317B2 (en) 2016-03-18 2019-04-30 Icon Health & Fitness, Inc. Lighted pace feature in a treadmill
US10493349B2 (en) 2016-03-18 2019-12-03 Icon Health & Fitness, Inc. Display on exercise device
US10625137B2 (en) 2016-03-18 2020-04-21 Icon Health & Fitness, Inc. Coordinated displays in an exercise device
US10252109B2 (en) 2016-05-13 2019-04-09 Icon Health & Fitness, Inc. Weight platform treadmill
US10441844B2 (en) 2016-07-01 2019-10-15 Icon Health & Fitness, Inc. Cooling systems and methods for exercise equipment
US10471299B2 (en) 2016-07-01 2019-11-12 Icon Health & Fitness, Inc. Systems and methods for cooling internal exercise equipment components
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