EP1604709A1 - Displacement detector of a shock absorption unit for a treadmill - Google Patents
Displacement detector of a shock absorption unit for a treadmill Download PDFInfo
- Publication number
- EP1604709A1 EP1604709A1 EP04013618A EP04013618A EP1604709A1 EP 1604709 A1 EP1604709 A1 EP 1604709A1 EP 04013618 A EP04013618 A EP 04013618A EP 04013618 A EP04013618 A EP 04013618A EP 1604709 A1 EP1604709 A1 EP 1604709A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- frame
- gear
- handgrip
- treadmill
- driving motor
- 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.)
- Ceased
Links
Images
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
- A63B22/02—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
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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
- A63B22/02—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
- A63B22/0207—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 having shock absorbing means
- A63B22/0214—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 having shock absorbing means between the belt supporting deck and the frame
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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
- A63B22/02—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
- A63B22/0207—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 having shock absorbing means
- A63B22/0228—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 having shock absorbing means with variable resilience
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/50—Force related parameters
- A63B2220/51—Force
- A63B2220/53—Force of an impact, e.g. blow or punch
Definitions
- the invention relates to a displacement detector of a shock absorption unit for a treadmill, and more particularly, to a device utilizing optical detection technique to accurately measure the displacement amount of the shock absorption unit when a force is applied onto a platform of the treadmill. Accordingly, a corresponding cushioning force of the shock absorption unit can be precisely controlled.
- the treadmill is provided with cushioning apparatuses at suitable places for achieving a proper cushioning effect and enhancing the comfort of the operator during a workout session.
- a protection mechanism has been developed for preventing both feet of the operator from being injured due to the too large reactive force of the platform of the treadmill. It will be particularly beneficial to the operator if hydraulic or pneumatic cylinders are used to provide more excellent cushioning effect.
- a few prior arts such as US 4,591,147, US 5,184,988, US 4,974,831, US 4,984,810, US 5,072,928, US 5,372,559, etc. have disclosed the application of hydraulic or pneumatic cylinders to the treadmill.
- the cushioning apparatus is adjustable.
- optical detection technique is used to accurately measure the displacement amount of the shock absorption unit when an operator stands on a platform of the treadmill. Accordingly, a corresponding cushioning force of the shock absorption unit can be precisely controlled.
- the treadmill 10 includes a base frame 20 and a deck frame 30.
- a handgrip frame 21 extends upwardly from both sides at front end of the base frame 20 with an electronic control panel 22 mounted thereon.
- the deck frame 30 has a running belt 31 movably mounted thereon so that the operator can stand thereon to take the walking, jogging or running exercise.
- a cantilever 23 has one end pivotably connected to the lower portion of each of the handgrip frames 21 and the other end pivotably connected to the deck frame 30.
- a displacement detector 50 and an adjustable cushioning apparatus 40 with a driving motor 41 are interposed between each connecting arm 24 of the handgrip frame 21 and each cantilever 23 for adjusting the cushioning force in accordance with different forces acting on the deck frame 30.
- an auxiliary supporting rod 25 is interposed between the connecting arm 24 and the base frame 20.
- the driving motor 41 brings an adjustment gear 43 in rotation through a motor shaft gear 42.
- the rotation of the adjustment gear 43 enables the adjustment of the cushioning force provided by the adjustable cushioning apparatus 40.
- a coupling control element 44 is disposed on the adjustment gear 43.
- the control element 44 is movable with the adjustment gear 43. When the control element 44 contacts one of micro-switches 45, 46, the driving motor 41 is automatically shut down.
- the displacement detector 50 having a cable 51, a guide roller 52, a large gear 53, a small gear 54 and an optical disk 56 is installed at bottom end of the adjustable cushioning apparatus 40.
- the optical disk 56 and the small gear 54 are received on a shaft 55.
- An optical detector 57 is mounted near one side of the optical disk 56.
- the cable 51 with one end fixed at the connecting arm 24 of the handgrip frame 21 extends around the guide roller 52 and the large gear 53 and is secured to the other end to the base frame 20.
- the optical detector 57 can determine the displacement amount of the adjustable cushioning apparatus 40.
- a micro main board 60 serving as a control center is mounted on the adjustable cushioning apparatus 40 for an effective control and connection among the displacement detector 50, the driving motor 41, the micro-switches 45, 46 and the electronic control panel 22.
- the electric connection thereof it belongs to prior art so that no further descriptions thereto are given hereinafter.
Landscapes
- Health & Medical Sciences (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Tools (AREA)
Abstract
Description
Claims (3)
- A treadmill having a base frame, a handgrip frame extending upwardly from both sides at front end of the base frame with an electronic control panel mounted thereon and a deck frame with a running belt movably mounted thereon, comprising:a) a plurality of cantilevers (23) each having one end pivotably connected to the lower portion of the handgrip frames (21) and the other end pivotably connected to the deck frame (30);b) a plurality of adjustable cushioning apparatus (40) each interposed between a connecting arm of the handgrip frame (21) and one of the cantilevers (23) for adjusting the cushioning force in accordance with different forces acting on the deck frame (30) ; andc) a plurality of displacement detectors (50) each installed at bottom end of the adjustable cushioning apparatuses (40).
- The treadmill of claim 1 wherein the adjustable cushioning apparatus with a driving motor comprising:a) a motor shaft gear and an adjustment gear so that the driving motor (41) of the adjustable cushioning apparatus (40) brings the adjustment gear (43) in rotation through the motor shaft gear (42) whereby the rotation of the adjustment gear enables the adjustment of the cushioning force provided by the adjustable cushioning apparatus (40);b) a coupling control element (44) disposed on the adjustment gear (43) and movable therewith; andc) a plurality of micro-switches (45, 46) for automatically shutting down the driving motor (41) when the control element (44) contacts either of the micro-switches (45, 46) whereby an effective restriction of the adjusting travel caused by the driving motor is attainable.
- The treadmill of claim 1 wherein the displacement detector comprising:a) a guide roller (52);b) a large gear (53);c) a small gear (54);d) an optical disk (56) installed at bottom end of the adjustable cushioning apparatus (40) wherein the optical disk and the small gear are received on an identical shaft; ande) a cable (51) with one end fixed at the connecting arm of the handgrip frame (21) extending around the guide roller and the large gear (53) and secured to the other end to the base frame (20).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04013618A EP1604709A1 (en) | 2004-06-09 | 2004-06-09 | Displacement detector of a shock absorption unit for a treadmill |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04013618A EP1604709A1 (en) | 2004-06-09 | 2004-06-09 | Displacement detector of a shock absorption unit for a treadmill |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1604709A1 true EP1604709A1 (en) | 2005-12-14 |
Family
ID=34925312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04013618A Ceased EP1604709A1 (en) | 2004-06-09 | 2004-06-09 | Displacement detector of a shock absorption unit for a treadmill |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP1604709A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1901151A1 (en) | 2006-09-14 | 2008-03-19 | Abb Research Ltd. | A method and a device for avoiding collisions between an industrial robot and an object |
EP1925340A1 (en) * | 2006-11-10 | 2008-05-28 | MLS Lanny GmbH | Treadmill device for moving living beings, in particular hoofed animals, here in particular horses |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5184988A (en) * | 1990-01-10 | 1993-02-09 | Precor Incorporated | Exercise treadmill |
US6273843B1 (en) * | 2000-08-10 | 2001-08-14 | Peter K. C. Lo | Walking exerciser having a treadmill-body inclination adjustment mechanism |
US6719669B1 (en) * | 2003-04-11 | 2004-04-13 | Leao Wang | Displacement detector of a shock absorption unit for a treadmill |
-
2004
- 2004-06-09 EP EP04013618A patent/EP1604709A1/en not_active Ceased
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5184988A (en) * | 1990-01-10 | 1993-02-09 | Precor Incorporated | Exercise treadmill |
US6273843B1 (en) * | 2000-08-10 | 2001-08-14 | Peter K. C. Lo | Walking exerciser having a treadmill-body inclination adjustment mechanism |
US6719669B1 (en) * | 2003-04-11 | 2004-04-13 | Leao Wang | Displacement detector of a shock absorption unit for a treadmill |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1901151A1 (en) | 2006-09-14 | 2008-03-19 | Abb Research Ltd. | A method and a device for avoiding collisions between an industrial robot and an object |
EP1925340A1 (en) * | 2006-11-10 | 2008-05-28 | MLS Lanny GmbH | Treadmill device for moving living beings, in particular hoofed animals, here in particular horses |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR |
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AX | Request for extension of the european patent |
Extension state: AL HR LT LV MK |
|
17P | Request for examination filed |
Effective date: 20060509 |
|
17Q | First examination report despatched |
Effective date: 20060720 |
|
AKX | Designation fees paid |
Designated state(s): DE ES FR GB IT SE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 20061204 |