EP0058052A2 - Übungsvorrichtung - Google Patents

Übungsvorrichtung Download PDF

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Publication number
EP0058052A2
EP0058052A2 EP82300558A EP82300558A EP0058052A2 EP 0058052 A2 EP0058052 A2 EP 0058052A2 EP 82300558 A EP82300558 A EP 82300558A EP 82300558 A EP82300558 A EP 82300558A EP 0058052 A2 EP0058052 A2 EP 0058052A2
Authority
EP
European Patent Office
Prior art keywords
rotatable member
brake
friction areas
low friction
drum
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.)
Withdrawn
Application number
EP82300558A
Other languages
English (en)
French (fr)
Other versions
EP0058052A3 (en
Inventor
Roger Michael Smith
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.)
Herbert Terry and Sons Ltd
Original Assignee
Herbert Terry and Sons Ltd
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 Herbert Terry and Sons Ltd filed Critical Herbert Terry and Sons Ltd
Publication of EP0058052A2 publication Critical patent/EP0058052A2/de
Publication of EP0058052A3 publication Critical patent/EP0058052A3/en
Withdrawn legal-status Critical Current

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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
    • 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
    • A63B21/00181—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices comprising additional means assisting the user to overcome part of the resisting force, i.e. assisted-active exercising
    • 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
    • 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
    • A63B21/012—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using frictional force-resisters
    • A63B21/015—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using frictional force-resisters including rotating or oscillating elements rubbing against fixed elements
    • 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
    • A63B22/0002—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements involving an exercising of arms
    • A63B22/0005—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements involving an exercising of arms with particular movement of the arms provided by handles moving otherwise than pivoting about a horizontal axis parallel to the body-symmetrical-plane
    • 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
    • A63B22/0002—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements involving an exercising of arms
    • A63B22/0007—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements involving an exercising of arms by alternatively exercising arms or legs, e.g. with a single set of support elements driven either by the upper or the lower limbs
    • 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
    • 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
    • A63B23/00—Exercising apparatus specially adapted for particular parts of the body
    • A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
    • A63B23/04—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs
    • A63B23/0476—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs by rotating cycling movement

Definitions

  • This invention relates to exerciser devices of the kind in which a shaft is rotated by a pair of pedal cranks or the like.
  • the pedals may be arranged to be foot operated as in a bicycle, or hand rotated.
  • the shaft may be braked or it may be arranged to drive a braked element, and the brake may be adjustable so as to vary the work done and hence the amount of exercise obtained.
  • a problem with devices of this kind is that in converting near straight line motion ( of the user's arms or legs ) into rotary motion, the drive is most inefficient at two diametrically opposed points which it is convenient to call top dead centre (TDC) and bottom dead centre (BDC), although they are only vertically aligned in certain circumstances. If the brake is set to require considerable effort to turn the pedals, it may be difficult or even impossible to start the rotary motion if the pedals are left in the TDC and BDC positions, or the device may stall at such positions.
  • a relatively massive flywheel can minimise stalling, and various means are theoretically possible to ensure low resistance to turning until a minimum rotational speed is achieved, but all of these possibilities tend to be relatively expensive.
  • the object of the invention is to solve the problem in an inexpensive way.
  • an exerciser device comprises a rotatable member which is braked, and which has at TDC and BDC positions ( as hereinbefore defined ) low friction areas for engagement by the brake.
  • the rotatable member may be a brake drum engaged by an externally contracting brake shoe, and the brake drum may be a metal casting with inset pads of plastics material.
  • the plastics material is not necessarily one with an ultra low coefficient of friction such as polytetrafluorethylene, and it is sufficient if its coefficient of friction is merely substantially less than that of the remainder of the drum, as might be the case for example by using a light alloy die casting for the drum with nylon inserts for the low friction areas.
  • the brake shoe may have a lining of a conventional high friction material of the kind used for bicycle brakes or vehicle brakes, and it may be arranged to engage with the drum over a portion of its periphery, the brake pad having a generally rectangular shape.
  • the length of the shoe and the corresponding dimensions of the low-friction material determine the effect obtained.
  • a smooth transition can be achieved by shaping the friction surfaces so that during angular movement towards the BDC or TDC position a progressively greater proportion of the engaged areas involve the low friction material, and when the TDC or BDC position is passed, vice versa. This may be done with a circular pad of low-friction material which sweeps past the squared end of the brake shoe, but many other solutions are possible: for example a similar transitional effect can be obtained by using a brake pad which has shaped ends.
  • an exercise “bicycle” comprises a main frame which forms a stand supporting handle bars and a saddle.
  • the frame journals a spindle carrying a pair of oppositely directed pedal cranks each terminating in a corresponding pedal possibly provided with a toe clip.
  • the spindle is fixed to a brake drur so that the latter rotates with the spindle as the pedal cranks are turned, and the brake shoe is mounted at one end of a lever pivoted between its ends on the frame, with the end opposite to that carrying the shoe connected to an adjuster device for example by cable.
  • the braked rotatable member may be a disc instead of a drum and in this event a caliper-type brake device can be used in conjunction with the disc.
  • the exerciser includes a frame having a seat tube 12 and rear legs 14 with a stablising crossbar 16.
  • the frame will also include front legs with a stablising bar and handlebars as in a conventional cycle type exerciser.
  • the frame journals a spindle 20 to which a pair of oppositely directed pedal cranks 22 are secured (only one crank 22 being shown in the drawing).
  • the spindle 20 mounts a brake drum 24 and a flywheel 26 (shown in broken outline).
  • a link 28 is pivoted to the frame at 30 and carries at its lower end a pivoted brake block 32 for frictional engagement with the periphery 34 of the drum 24.
  • the force with which the block 32 bears against the surface 34 is governed by a tensioning cable 36 engaging the link adjacent its upper end.
  • the cable 36 is conveniently connected to an adjustable tensioning device which is mounted so as to be readily accessible to the user when seated.
  • the brake drum 24 is conveniently manufactured -as a casting with recesses for insertion of pads 38 of low friction material so that its periphery presents both low and higher frictional resistance areas to the block 32 as the drum rotates.
  • the pads 38 are located at the previously mentioned TDC and BDC positions and they may be shaped as previously described so that the change in frictional resistance is progressive rather than abrupt.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • Braking Arrangements (AREA)
EP82300558A 1981-02-06 1982-02-03 Exerciser device Withdrawn EP0058052A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8103766 1981-02-06
GB8103766 1981-02-06

Publications (2)

Publication Number Publication Date
EP0058052A2 true EP0058052A2 (de) 1982-08-18
EP0058052A3 EP0058052A3 (en) 1982-09-22

Family

ID=10519517

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82300558A Withdrawn EP0058052A3 (en) 1981-02-06 1982-02-03 Exerciser device

Country Status (1)

Country Link
EP (1) EP0058052A3 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994016775A3 (en) * 1993-01-27 1994-09-15 Nordictrack Inc Flywheel resistance mechanism for exercise equipment
FR2998021A1 (fr) * 2012-11-15 2014-05-16 Aqua System Design Pedalier de velo aquatique

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE313270B (de) * 1967-12-04 1969-08-04 Monark Crescent Ab
JPS56130761U (de) * 1980-02-22 1981-10-03

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994016775A3 (en) * 1993-01-27 1994-09-15 Nordictrack Inc Flywheel resistance mechanism for exercise equipment
FR2998021A1 (fr) * 2012-11-15 2014-05-16 Aqua System Design Pedalier de velo aquatique
EP2732853A1 (de) * 2012-11-15 2014-05-21 Societe Industrielle Radio Electrique Et Mecanique "Sirem" Fahrradpedal für Aquabike
WO2014076212A3 (fr) * 2012-11-15 2014-07-10 Societe Industrielle Radio Electrique Et Mecanique ''sirem'' Pedalier de velo aquatique

Also Published As

Publication number Publication date
EP0058052A3 (en) 1982-09-22

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Legal Events

Date Code Title Description
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

PUAL Search report despatched

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AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LU NL SE

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17P Request for examination filed

Effective date: 19821203

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19840901

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SMITH, ROGER MICHAEL