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US20070087908A1 - Treadbase lifting mechanism of a treadmill - Google Patents

Treadbase lifting mechanism of a treadmill Download PDF

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Publication number
US20070087908A1
US20070087908A1 US11/242,072 US24207205A US2007087908A1 US 20070087908 A1 US20070087908 A1 US 20070087908A1 US 24207205 A US24207205 A US 24207205A US 2007087908 A1 US2007087908 A1 US 2007087908A1
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US
United States
Prior art keywords
treadbase
framework
plank
driving mechanism
lifting mechanism
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
US11/242,072
Inventor
Francis Pan
Shih-Huang Chu
Tsung-Chih Tsai
Min-Chuan Wu
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.)
Forhouse Corp
Original Assignee
Forhouse Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Forhouse Corp filed Critical Forhouse Corp
Priority to US11/242,072 priority Critical patent/US20070087908A1/en
Assigned to FORHOUSE CORPORATION reassignment FORHOUSE CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHU, SHIH-HUANG, PAN, FRANCIS CHUNG HWA, TSAI, TSUNG-CHIH, WU, MIN-CHAN
Publication of US20070087908A1 publication Critical patent/US20070087908A1/en
Abandoned legal-status Critical Current

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    • 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
    • A63B22/0015—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with an adjustable movement path of the support elements
    • A63B22/0023—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with an adjustable movement path of the support elements the inclination of the main axis of the movement path being adjustable, e.g. the inclination of an endless band
    • 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
    • A63B22/02—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills
    • A63B22/0235—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills driven by a motor

Definitions

  • the present invention relates to exercising apparatus and more particularly to a treadbase lifting mechanism of a treadmill.
  • a treadmill has a treadbase upon which the user treads.
  • the treadbase can be adjusted to the desired tilted position.
  • FIGS. 1 and 2 show a treadbase lifting mechanism according to the prior art design, which was also invented by the present inventor.
  • the treadbase lifting mechanism comprises a motor 1 , a rack 2 , and an arched link 3 .
  • the rack 2 is meshed with the pinion at the output shaft of the motor 1 .
  • the arched link 3 is coupled between the rack 2 and one end of the treadbase of the treadmill. Rotating the motor 1 causes the rack 2 to move the arched link 3 and to further lift or lower the treadbase of the treadmill.
  • This design allows adjustment of the treadbase to the desired tilted position.
  • the driving force of the motor is not directly transmitted to the treadbase but through the arched link, the horizontal push/pull force provided by the driving mechanism is not the vertical push/pull force required for adjusting the tilting angle of the treadbase. Therefore, the driving mechanism must have a strong output force to move the rack so that the arched link can provide sufficient vertical component of force to lift the treadbase. Due to this limitation, this treadbase lifting mechanism requires much installation space and wears quickly with use.
  • the present invention has been accomplished under the circumstances in view. It is the main object of the present invention to provide a treadbase lifting mechanism for treadmill, which saves the output power of the driving motor and reduces the size of the treadmill.
  • the treadbase lifting mechanism comprises a framework placed on a flat surface to support a treadbase; a driving mechanism mounted in the framework, the driving mechanism having a movable end adapted to provide a reciprocating driving force; a plank pivotally mounted on a fulcrum at the framework and balanced on the fulcrum, the plank having a rear end pivoted to the an end of the treadbase; a rotary member pivotally mounted in the framework in front of the movable end of the driving mechanism; and a flexible connecting member extending over the rotary member and connected between the front end of the plank and the movable end of the driving mechanism for driving by the movable end of the driving mechanism to turn the plank up and down on the fulcrum.
  • FIG. 1 is a perspective view of a prior art design.
  • FIG. 2 is a side view of the prior art design shown in FIG. 1 .
  • FIG. 3 is a side view of the present invention, showing the treadbase set in horizontal.
  • FIG. 4 corresponds to FIG. 3 , showing the treadbase set in a tilted position.
  • a treadbase lifting mechanism in accordance with the present invention is shown comprising a framework 10 , a driving mechanism 20 , a rack 23 , a plank 40 , a rotary member 50 , and a flexible connecting member 60 .
  • the framework 10 can be placed on a flat surface, having a treadbase 11 above on it.
  • the driving mechanism 20 is mounted in the framework 10 and adapted to provide a reciprocating driving force.
  • the driving mechanism 20 is comprised of a reversible motor 21 mounted in the framework 10 , a drive gear 22 fixedly mounted on the output shaft of the motor 21 , and a rack 23 longitudinally slidably mounted in the framework 10 and meshed with the drive gear 22 . Starting the motor 21 to rotate the drive gear 22 forwards/backwards, the rack 23 is moved longitudinally forwards/backwards in the framework 10 .
  • the driving mechanism 20 can be formed of a worm and a worm gear.
  • the plank 40 is pivoted to the framework 10 and balanced on the fulcrum at the pivoted point, having one end, namely, the rear end pivoted to the an end (the front end) of the treadbase 11 .
  • the rotary member 50 is pivotally mounted in the framework 10 in front of the rack 23 .
  • the rotary member 50 can be a roll or gear wheel.
  • the rotary member 50 is a sprocket.
  • the flexible connecting member 60 has one end connected to the movable end of the driving mechanism, i.e., connected to one end of the rack 23 , and the other end extending over the rotary member 50 and connected to the other end, namely, the front end of the plank 40 . Therefore, the flexible connecting member 60 changes the horizontal acting force produced by the motor 20 into a vertical acting force and transmits this vertical acting force to the front end of the plank 40 .
  • the flexible connecting member 60 can be a wire, cable, or chain. According to this embodiment, the flexible connecting member 60 is a chain meshed with the sprocket 50 and connected between the front end of the rack 23 and the front end of the plank 40 .
  • FIG. 3 shows the treadbase 11 set in horizontal.
  • the rack 23 is disposed adjacent to the rotary member 50 , the plank 40 is held in a tilted position with the front end received inside the framework 10 and the rear end spaced above the framework 10 .
  • the flexible connecting member 60 is used and driven to change the horizontal acting force produced by the motor 20 into a vertical acting force and to transmit this vertical acting force to the front end of the plank 40 , no component or dispersion of force will be produced during the operation of the present invention, i.e., the invention prevents a loss of driving force when tilting the treadbase.

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  • Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Tools (AREA)

Abstract

A treadbase lifting mechanism is disclosed to include a framework with a treadbase above on it, a plank balanced on a fulcrum at the framework having one end pivoted to the an end of the treadbase, a driving mechanism, a sprocket pivotally mounted in the framework, and a chain meshed with the sprocket and connected between the driving mechanism and the other end of the plank for driving by the driving mechanism to turn the plank and to further lift the treadbase to the desired tilted position.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates to exercising apparatus and more particularly to a treadbase lifting mechanism of a treadmill.
  • 2. Description of the Related Art
  • A treadmill has a treadbase upon which the user treads. The treadbase can be adjusted to the desired tilted position. FIGS. 1 and 2 show a treadbase lifting mechanism according to the prior art design, which was also invented by the present inventor. According to this design, the treadbase lifting mechanism comprises a motor 1, a rack 2, and an arched link 3. The rack 2 is meshed with the pinion at the output shaft of the motor 1. The arched link 3 is coupled between the rack 2 and one end of the treadbase of the treadmill. Rotating the motor 1 causes the rack 2 to move the arched link 3 and to further lift or lower the treadbase of the treadmill. This design allows adjustment of the treadbase to the desired tilted position. However, because the driving force of the motor is not directly transmitted to the treadbase but through the arched link, the horizontal push/pull force provided by the driving mechanism is not the vertical push/pull force required for adjusting the tilting angle of the treadbase. Therefore, the driving mechanism must have a strong output force to move the rack so that the arched link can provide sufficient vertical component of force to lift the treadbase. Due to this limitation, this treadbase lifting mechanism requires much installation space and wears quickly with use.
    • SUMMARY OF THE INVENTION
  • The present invention has been accomplished under the circumstances in view. It is the main object of the present invention to provide a treadbase lifting mechanism for treadmill, which saves the output power of the driving motor and reduces the size of the treadmill.
  • To achieve this and other objects of the present invention, the treadbase lifting mechanism comprises a framework placed on a flat surface to support a treadbase; a driving mechanism mounted in the framework, the driving mechanism having a movable end adapted to provide a reciprocating driving force; a plank pivotally mounted on a fulcrum at the framework and balanced on the fulcrum, the plank having a rear end pivoted to the an end of the treadbase; a rotary member pivotally mounted in the framework in front of the movable end of the driving mechanism; and a flexible connecting member extending over the rotary member and connected between the front end of the plank and the movable end of the driving mechanism for driving by the movable end of the driving mechanism to turn the plank up and down on the fulcrum.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a perspective view of a prior art design.
  • FIG. 2 is a side view of the prior art design shown in FIG. 1.
  • FIG. 3. is a side view of the present invention, showing the treadbase set in horizontal.
  • FIG. 4 corresponds to FIG. 3, showing the treadbase set in a tilted position.
    • DETAILED DESCRIPTION OF THE INVENTION
  • Referring to FIG. 3, a treadbase lifting mechanism in accordance with the present invention is shown comprising a framework 10, a driving mechanism 20, a rack 23, a plank 40, a rotary member 50, and a flexible connecting member 60.
  • The framework 10 can be placed on a flat surface, having a treadbase 11 above on it.
  • The driving mechanism 20 is mounted in the framework 10 and adapted to provide a reciprocating driving force. According to this embodiment, the driving mechanism 20 is comprised of a reversible motor 21 mounted in the framework 10, a drive gear 22 fixedly mounted on the output shaft of the motor 21, and a rack 23 longitudinally slidably mounted in the framework 10 and meshed with the drive gear 22. Starting the motor 21 to rotate the drive gear 22 forwards/backwards, the rack 23 is moved longitudinally forwards/backwards in the framework 10. Alternatively, the driving mechanism 20 can be formed of a worm and a worm gear.
  • The plank 40 is pivoted to the framework 10 and balanced on the fulcrum at the pivoted point, having one end, namely, the rear end pivoted to the an end (the front end) of the treadbase 11.
  • The rotary member 50 is pivotally mounted in the framework 10 in front of the rack 23. The rotary member 50 can be a roll or gear wheel. According to this embodiment, the rotary member 50 is a sprocket.
  • The flexible connecting member 60 has one end connected to the movable end of the driving mechanism, i.e., connected to one end of the rack 23, and the other end extending over the rotary member 50 and connected to the other end, namely, the front end of the plank 40. Therefore, the flexible connecting member 60 changes the horizontal acting force produced by the motor 20 into a vertical acting force and transmits this vertical acting force to the front end of the plank 40. The flexible connecting member 60 can be a wire, cable, or chain. According to this embodiment, the flexible connecting member 60 is a chain meshed with the sprocket 50 and connected between the front end of the rack 23 and the front end of the plank 40.
  • FIG. 3 shows the treadbase 11 set in horizontal. At this time, the rack 23 is disposed adjacent to the rotary member 50, the plank 40 is held in a tilted position with the front end received inside the framework 10 and the rear end spaced above the framework 10.
  • When wishing to tilt the treadbase 11, start the motor 21 to rotate the drive gear 22 and to further move the rack 23 horizontally backwards, thereby increasing the distance between the rotary member 50 and the rack 23 and driving the flexible connecting member 60 to pull the front end of the plank 40 downwards. When pulling the front end of the plank 40 downwards, the front end of the plank 40 is turned upwards to lift the front end of the treadbase 11, and therefore the treadbase 11 is tilted to the desired tilted position. Because the flexible connecting member 60 is used and driven to change the horizontal acting force produced by the motor 20 into a vertical acting force and to transmit this vertical acting force to the front end of the plank 40, no component or dispersion of force will be produced during the operation of the present invention, i.e., the invention prevents a loss of driving force when tilting the treadbase.
  • Although a particular embodiment of the invention has been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.

Claims (5)

1. A treadbase lifting mechanism comprising:
a framework;
a treadbase above said framework;
a driving mechanism mounted in said framework, said driving mechanism having a movable end adapted to provide a reciprocating driving force;
a plank pivotally mounted on a fulcrum at said framework and balanced on said fulcrum, said plank having a rear end pivoted to an end of said treadbase;
a rotary member pivotally mounted in said framework in front of the movable end of said driving mechanism; and
a flexible connecting member extending over said rotary member and connected between the front end of said plank and the movable end of said driving mechanism for driving by said movable end of said driving mechanism to turn said plank up and down on said fulcrum.
2. The treadbase lifting mechanism as claimed in claim 1, wherein said rotary member is a gear wheel.
3. The treadbase lifting mechanism as claimed in claim 2, wherein said flexible connecting member is a chain.
4. The treadbase lifting mechanism as claimed in claim 1, wherein said rotary member is a roll.
5. The treadbase lifting mechanism as claimed in claim 4, wherein said flexible connecting member is a cable.
US11/242,072 2005-10-04 2005-10-04 Treadbase lifting mechanism of a treadmill Abandoned US20070087908A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/242,072 US20070087908A1 (en) 2005-10-04 2005-10-04 Treadbase lifting mechanism of a treadmill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/242,072 US20070087908A1 (en) 2005-10-04 2005-10-04 Treadbase lifting mechanism of a treadmill

Publications (1)

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US20070087908A1 true US20070087908A1 (en) 2007-04-19

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Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130123073A1 (en) * 2011-11-15 2013-05-16 Icon Health & Fitness, Inc. Exercise Device With Rack and Pinion Incline Adjusting Mechanism
US10188890B2 (en) 2013-12-26 2019-01-29 Icon Health & Fitness, Inc. Magnetic resistance mechanism in a cable machine
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
US10335632B2 (en) 2015-12-31 2019-07-02 Nautilus, Inc. Treadmill including a deck locking mechanism
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
US10398932B2 (en) 2015-12-31 2019-09-03 Nautilus, Inc. Treadmill including a lift assistance mechanism
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
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
US11420091B2 (en) * 2019-08-28 2022-08-23 Technogym S.P.A Closed-circuit sliding-belt gymnastic machine and manufacturing method thereof
US11451108B2 (en) 2017-08-16 2022-09-20 Ifit Inc. Systems and methods for axial impact resistance in electric motors

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6796927B2 (en) * 2001-10-19 2004-09-28 Konami Corporation Exercise assistance controlling method and exercise assisting apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6796927B2 (en) * 2001-10-19 2004-09-28 Konami Corporation Exercise assistance controlling method and exercise assisting apparatus

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9138615B2 (en) * 2011-11-15 2015-09-22 Icon Health & Fitness, Inc. Exercise device with rack and pinion incline adjusting mechanism
US20130123073A1 (en) * 2011-11-15 2013-05-16 Icon Health & Fitness, Inc. Exercise Device With Rack and Pinion Incline Adjusting Mechanism
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
US10258828B2 (en) 2015-01-16 2019-04-16 Icon Health & Fitness, Inc. Controls for an exercise device
US10953305B2 (en) 2015-08-26 2021-03-23 Icon Health & Fitness, Inc. Strength exercise mechanisms
US10398932B2 (en) 2015-12-31 2019-09-03 Nautilus, Inc. Treadmill including a lift assistance mechanism
US10335632B2 (en) 2015-12-31 2019-07-02 Nautilus, Inc. Treadmill including a deck locking mechanism
US10493349B2 (en) 2016-03-18 2019-12-03 Icon Health & Fitness, Inc. Display on exercise device
US10293211B2 (en) 2016-03-18 2019-05-21 Icon Health & Fitness, Inc. Coordinated weight selection
US10625137B2 (en) 2016-03-18 2020-04-21 Icon Health & Fitness, Inc. Coordinated displays in an exercise device
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
US10252109B2 (en) 2016-05-13 2019-04-09 Icon Health & Fitness, Inc. Weight platform treadmill
US10471299B2 (en) 2016-07-01 2019-11-12 Icon Health & Fitness, Inc. Systems and methods for cooling internal exercise equipment components
US10441844B2 (en) 2016-07-01 2019-10-15 Icon Health & Fitness, Inc. Cooling systems and methods for exercise equipment
US10500473B2 (en) 2016-10-10 2019-12-10 Icon Health & Fitness, Inc. Console positioning
US10376736B2 (en) 2016-10-12 2019-08-13 Icon Health & Fitness, Inc. Cooling an exercise device during a dive motor runway condition
US10343017B2 (en) 2016-11-01 2019-07-09 Icon Health & Fitness, Inc. Distance sensor for console positioning
US10661114B2 (en) 2016-11-01 2020-05-26 Icon Health & Fitness, Inc. Body weight lift mechanism on treadmill
US10543395B2 (en) 2016-12-05 2020-01-28 Icon Health & Fitness, Inc. Offsetting treadmill deck weight during operation
US11451108B2 (en) 2017-08-16 2022-09-20 Ifit Inc. Systems and methods for axial impact resistance in electric motors
US10729965B2 (en) 2017-12-22 2020-08-04 Icon Health & Fitness, Inc. Audible belt guide in a treadmill
US11420091B2 (en) * 2019-08-28 2022-08-23 Technogym S.P.A Closed-circuit sliding-belt gymnastic machine and manufacturing method thereof
US11872443B2 (en) 2019-08-28 2024-01-16 Technogym S.P.A Closed-circuit sliding-belt gymnastic machine and manufacturing method thereof

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Legal Events

Date Code Title Description
AS Assignment

Owner name: FORHOUSE CORPORATION, TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PAN, FRANCIS CHUNG HWA;CHU, SHIH-HUANG;TSAI, TSUNG-CHIH;AND OTHERS;REEL/FRAME:017067/0753

Effective date: 20050916

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION