US20110294628A1 - Electromechanical mechanism for controlling fractional weight lifting plates in workout stations - Google Patents

Electromechanical mechanism for controlling fractional weight lifting plates in workout stations Download PDF

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Publication number
US20110294628A1
US20110294628A1 US13/148,194 US201013148194A US2011294628A1 US 20110294628 A1 US20110294628 A1 US 20110294628A1 US 201013148194 A US201013148194 A US 201013148194A US 2011294628 A1 US2011294628 A1 US 2011294628A1
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US
United States
Prior art keywords
pulley
tower
fractional weight
crossbeam
steel cable
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
US13/148,194
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English (en)
Inventor
Takashi Nishimura
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of US20110294628A1 publication Critical patent/US20110294628A1/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
    • 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
    • A63B21/15—Arrangements for force transmissions
    • A63B21/151—Using flexible elements for reciprocating movements, e.g. ropes or chains
    • A63B21/154—Using flexible elements for reciprocating movements, e.g. ropes or chains using special pulley-assemblies
    • 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
    • A63B21/06—User-manipulated weights
    • A63B21/072—Dumb-bells, bar-bells or the like, e.g. weight discs having an integral peripheral handle
    • A63B21/075—Dumb-bells, bar-bells or the like, e.g. weight discs having an integral peripheral handle with variable weights, e.g. weight systems with weight selecting means for bar-bells or dumb-bells
    • 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
    • A63B21/06—User-manipulated weights
    • A63B21/062—User-manipulated weights including guide for vertical or non-vertical weights or array of weights to move against gravity forces
    • A63B21/0626—User-manipulated weights including guide for vertical or non-vertical weights or array of weights to move against gravity forces with substantially vertical guiding means
    • A63B21/0628—User-manipulated weights including guide for vertical or non-vertical weights or array of weights to move against gravity forces with substantially vertical guiding means for vertical array of weights
    • 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
    • A63B21/06—User-manipulated weights
    • A63B21/062—User-manipulated weights including guide for vertical or non-vertical weights or array of weights to move against gravity forces
    • A63B21/0626—User-manipulated weights including guide for vertical or non-vertical weights or array of weights to move against gravity forces with substantially vertical guiding means
    • A63B21/0628—User-manipulated weights including guide for vertical or non-vertical weights or array of weights to move against gravity forces with substantially vertical guiding means for vertical array of weights
    • A63B21/063—Weight selecting means
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/0054—Features for injury prevention on an apparatus, e.g. shock absorbers
    • A63B2071/0063—Shock absorbers
    • 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
    • A63B2220/80—Special sensors, transducers or devices therefor
    • A63B2220/805—Optical or opto-electronic sensors

Definitions

  • the present invention is directed to an electromechanical mechanism for controlling fractional weight lifting plates in workout stations and, more specifically, to a shaft having pulleys mounted on bearings fixed on the weight tower of the workout station to act in conjunction with a set of fractional weight lifting plates, which, together with the unit weights, make up the total amount of weight selected by a user of the workout station.
  • weight towers of workout stations have various unit weights stacked, which may, in whole or in part, be lifted inside the towers by central vertical steel cables, which, in turn, are driven by active members of the workout station driven by the user. Selecting the weights to lift may be obtained by inserting a horizontal pin, which crosses through a hole existing in each weight in correspondence with a sequence of holes of an ear that extends to below the lower weight and attaches at the top to a steel cable. A weight selected by the pin lifts all the weights above it as well.
  • the most modern towers have electromechanical systems for selecting the weights, commanded by a panel fixed to the workout station.
  • a electromechanical mechanism for controlling fractional weight lifting plates in workout stations to be installed in a weight tower of the workout station, of the kind comprised by two vertical columns joined at the top by a crossbeam and at the bottom by a base, on which there rests a stack of unit weights that can be vertically moved by a steel cable, sliding in vertical guides mounted between the crossbeam and the base.
  • a pulley At or toward the top of this tower there is a pulley that deflects the steel cable coming from the lower part of the tower towards the center of the tower, where it is fixed to the unit weights.
  • the mechanism is comprised by of the pulley mounted in the center of a shaft that is kept suspended and parallel to the crossbeam by a pair of bearings attached to the crossbeam of the tower.
  • On this shaft may be mounted, on either side of the pulley, another pulley provided with a coupling in the side section, housable in a coupling of an adjacent disk, lengthwise and slidingly mounted on the shaft, and conducted by a rod which is propelled axially by the cursor of a linear actuator.
  • Fastened to each pulley is a steel cable, which passes through the tower, by a deflection pulley, hanging vertically down inside a tube attached to the crossbeam and to the base of the tower, the cylindrical fractional weight being held at the end.
  • FIG. 1 depicts a front raised view of a tower having an electromechanical mechanism for controlling fractional weight lifting plates, in accordance with some aspects of the present invention
  • FIG. 2 is a vertical sectional view taken along line A-A of FIG. 1 , depicting of a tower having an electromechanical mechanism for controlling fractional weight lifting plates, in accordance with some aspects of the present invention
  • FIG. 3 is a long cross-sectional view taken along line B-B of FIG. 2 , depicting an electromechanical mechanism for controlling fractional weight lifting plates, passing through the shaft of the pulley of the top of the tower, in accordance with some aspects of the present invention.
  • FIG. 4 is a cross-sectional view of the top of the tower taken along line C-C of FIG. 1 , crosswise to the shaft of the pulley, in accordance with some aspects of the present invention.
  • an electromechanical mechanism for controlling fractional weight lifting plates in workout stations may include weight towers comprised of two vertical columns 1 joined at the top by a crossbeam 2 and at the bottom by a base 3 supporting said columns 1 .
  • a rectangular space is formed between the columns 1 , crossbeam 2 and base 3 where a plurality of unit weights 4 may be positioned in a stacked fashion, for example, as shown in FIGS. 1 and 2 .
  • the unit weights 4 may have vertical holes that are crossed by vertical guides 5 mounted between the crossbeam 2 and the base 3 , as shown in FIG. 1 .
  • a coupling plaque 40 Above the uppermost unit weight 4 there is a coupling plaque 40 , with a vertical bar 6 that crosses through all the unit weights 4 by corresponding central holes therein, the plaque 40 being attached to the end of a steel cable 7 which lifts the unit weights 4 .
  • the electromechanical mechanism promotes the coupling between the vertical bar 6 and one of the unit weights 4 , duly selected.
  • the steel cable 7 then lifts, by way of the bar 6 , the selected weight 4 plus all the weights above it.
  • An aspect of the present invention includes adding to the unit weights 4 fractional weight lifting plates, such as to provide equivalents to one half, or to one half plus one fourth of a unit weight, with an electromechanical selector for selective coupling.
  • the electromechanical selector for fractional weight lifting plates consists of using a central pulley 8 positioned at the top of the tower for deflecting downwards, in the center of the tower, the steel cable 7 coming from the bar 6 , toward a deflecting pulley 10 , which leads the cable 7 horizontally, for example, to the workout station, as schematically represented by an arrow in FIG. 2 .
  • the pulley 8 may be mounted on a tubular shaft 11 .
  • the shaft 11 may be rotatably mounted on bushings 12 of bearings 13 , which may be attached to the crossbeam 2 of the tower.
  • the tubular shaft 11 extends outwardly of the bushings 12 and receives, on either side of the bearings 13 , the bushings 14 of two fractional weight pulleys 15 , which have channels for steel cables 16 having small gauge or belt.
  • Each fractional weight pulley 15 has a rotary coupling 17 , opposite an analogous coupling 18 , of a disk 19 mounted coaxially and slidingly on the shaft 11 .
  • a cylindrical rod 20 is housed internally.
  • a radial pin 21 may be mounted toward the internal, distal end of the cylindrical rod 20 , which perpendicularly crosses oblong holes 22 provided on opposite walls of the shaft 11 , so as to enable the coupling of the pin 21 on the respective disk 19 .
  • the end opposite the distal end of the rod 20 extends from a hole of the shaft 11 and connects to a cursor 23 of a linear actuator 24 , by way of a rotary joint 25 , each actuator 24 being attached to the crossbeam 2 of the tower.
  • the shaft 11 has a rod 20 at each end and linear actuators 24 , one for each rod 20 .
  • These two optical sensors 27 are located near each other and at a distance less than or equal to the distance between the perforations of the disk 26 such that a CPU of the command panel recognizes the direction in which the disk 26 is turning, besides counting the amount of holes in a lifting or lowering operation of the weights.
  • FIG. 4 illustrates how each fractional weight pulley 15 has the steel cable 16 (or belt) attached at a point toward the bottom of the channel, where a terminal 28 is housed, the steel cable 16 extending behind the tower where it deflects downwards, for example, vertically when passing by a deflection pulley 29 .
  • each weight 31 and 32 is suspended by the steel cables 16 in the tubes 30 , the steel cables 16 connecting to the weights 31 and 32 substantially at their centers.
  • the tubes 30 are closed at the lower ends, and may contain rubber pads 33 below the weights 31 and 32 to buffer the shock of any of the weights 31 or 32 that freefall due to rupture of the respective cable 16 . Closed at the bottom, the tubes also help buffer the freefall by partial air compression with the weight acting as a piston.
  • the weights 31 and 32 are hung by the respective steel cables 16 , without touching the bottom of the tubes 30 , keeping these cables driven, which will always keep their pulleys 15 in the same position when not operated.
  • the electronic command panel drives one or both of the linear actuators 24 .
  • the actuator 24 pushes the rod 20 axially into the shaft 11 , which, by means of its pin 21 , conducts the disk 19 towards the pulley 15 , joining the couplings 17 and 18 , such that the pulley 15 thereafter turns in conjunction with the shaft 11 .
  • the pulley 15 thus winds the cable 16 , suspending the weight 31 or 32 , or both.
  • fractional weight lifting plates weighing five kilograms and two and a half kilograms may be used, such that selective operations of the two linear actuators 24 may fill the interval between 10 kilogram weights in four equal intervals.
  • the disk 26 and the optical sensors 27 read the angular movement of the pulley 8 , which is related to the linear movement of the steel cable 7 and, therefore, to the displacement of the unit weights 4 .
  • the displacement data may be relayed to the electronic panel of the workout station, which interprets the displacement data and the weight data provided by an appropriate sensor of the selection system and displays the energy expended in the exercise on the panel screen.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Emergency Lowering Means (AREA)
  • Rehabilitation Tools (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Bridges Or Land Bridges (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
US13/148,194 2009-04-22 2010-04-20 Electromechanical mechanism for controlling fractional weight lifting plates in workout stations Abandoned US20110294628A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BRPI0901360-1 2009-04-22
BRPI0901360-1A BRPI0901360A2 (pt) 2009-04-22 2009-04-22 mecanismo eletromecánico para controle de pesos fracionários em estação de musculação
PCT/BR2010/000133 WO2010121336A1 (pt) 2009-04-22 2010-04-20 Mecanismo eletromecânico para controle de pesos fracionários em estação de musculação

Publications (1)

Publication Number Publication Date
US20110294628A1 true US20110294628A1 (en) 2011-12-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
US13/148,194 Abandoned US20110294628A1 (en) 2009-04-22 2010-04-20 Electromechanical mechanism for controlling fractional weight lifting plates in workout stations

Country Status (7)

Country Link
US (1) US20110294628A1 (ko)
EP (1) EP2422851A4 (ko)
JP (1) JP2012524554A (ko)
KR (1) KR20120013295A (ko)
CN (1) CN102264439B (ko)
BR (1) BRPI0901360A2 (ko)
WO (1) WO2010121336A1 (ko)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140336018A1 (en) * 2013-05-10 2014-11-13 Precor Incorporated Fitness equipment unit
US20180200560A1 (en) * 2015-07-06 2018-07-19 Tea-hee HAN Weight training machine

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101636657B1 (ko) * 2015-10-15 2016-07-05 백준영 전동식 운동보조장치
CN111807243B (zh) * 2020-07-08 2023-11-28 黄云山 一种健身自动配重装置及健身自动配重方法
CN112237720A (zh) * 2020-11-26 2021-01-19 山东宇盛体育产业有限责任公司 户外用力量训练健身设备

Citations (12)

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US149486A (en) * 1874-04-07 Improvement in hanging loose pulleys
US177873A (en) * 1876-05-23 Improvement in mechanical movements
US200375A (en) * 1878-02-19 Improvement in clutch mechanisms
US223668A (en) * 1880-01-20 Odilon duplessis
US337942A (en) * 1886-03-16 Exercising-machine
US804218A (en) * 1903-12-21 1905-11-14 Richard Fiedler Gymnastic apparatus.
US1496387A (en) * 1922-12-11 1924-06-03 George E Smith Exercising device
US3717342A (en) * 1971-11-15 1973-02-20 Haney Recreational Equipment C Basketball training aid
US3743282A (en) * 1971-10-22 1973-07-03 Whittaker Corp Weight training device
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US5935048A (en) * 1998-09-08 1999-08-10 Krull; Mark A. Weight lifting exercise apparatus
US6387019B1 (en) * 1998-09-08 2002-05-14 Mark A. Krull Methods and apparatus for adjusting resistance to exercise

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JP4325878B2 (ja) * 2003-12-15 2009-09-02 リー、ビュング、ドン 自己発電機能を備えたウエートトレーニング器具及び器具向けスタック
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US7211030B1 (en) * 2006-04-12 2007-05-01 Guofang Cao Exercise machine having full weight or half weight selection mechanism
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Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US149486A (en) * 1874-04-07 Improvement in hanging loose pulleys
US177873A (en) * 1876-05-23 Improvement in mechanical movements
US200375A (en) * 1878-02-19 Improvement in clutch mechanisms
US223668A (en) * 1880-01-20 Odilon duplessis
US337942A (en) * 1886-03-16 Exercising-machine
US804218A (en) * 1903-12-21 1905-11-14 Richard Fiedler Gymnastic apparatus.
US1496387A (en) * 1922-12-11 1924-06-03 George E Smith Exercising device
US3743282A (en) * 1971-10-22 1973-07-03 Whittaker Corp Weight training device
US3717342A (en) * 1971-11-15 1973-02-20 Haney Recreational Equipment C Basketball training aid
US4827123A (en) * 1986-04-11 1989-05-02 Sangamo Weston, Inc. Direction sensitive optical shaft encoder
US5935048A (en) * 1998-09-08 1999-08-10 Krull; Mark A. Weight lifting exercise apparatus
US6387019B1 (en) * 1998-09-08 2002-05-14 Mark A. Krull Methods and apparatus for adjusting resistance to exercise

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140336018A1 (en) * 2013-05-10 2014-11-13 Precor Incorporated Fitness equipment unit
US9320937B2 (en) * 2013-05-10 2016-04-26 Precor Incorporated Fitness equipment unit
US20180200560A1 (en) * 2015-07-06 2018-07-19 Tea-hee HAN Weight training machine

Also Published As

Publication number Publication date
EP2422851A4 (en) 2013-08-07
KR20120013295A (ko) 2012-02-14
EP2422851A1 (en) 2012-02-29
CN102264439B (zh) 2014-05-28
JP2012524554A (ja) 2012-10-18
WO2010121336A1 (pt) 2010-10-28
BRPI0901360A2 (pt) 2011-01-04
CN102264439A (zh) 2011-11-30

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