FR2491344A3 - Drive handles for manually propelled tricycle - pivot round horizontal axle and are set at 90 degrees to each other - Google Patents

Drive handles for manually propelled tricycle - pivot round horizontal axle and are set at 90 degrees to each other Download PDF

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Publication number
FR2491344A3
FR2491344A3 FR8021553A FR8021553A FR2491344A3 FR 2491344 A3 FR2491344 A3 FR 2491344A3 FR 8021553 A FR8021553 A FR 8021553A FR 8021553 A FR8021553 A FR 8021553A FR 2491344 A3 FR2491344 A3 FR 2491344A3
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FR
France
Prior art keywords
degrees
cranks
horizontal axle
manually propelled
pivot round
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.)
Granted
Application number
FR8021553A
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French (fr)
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FR2491344B3 (en
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Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR8021553A priority Critical patent/FR2491344A3/en
Publication of FR2491344A3 publication Critical patent/FR2491344A3/en
Application granted granted Critical
Publication of FR2491344B3 publication Critical patent/FR2491344B3/fr
Granted legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M1/00—Rider propulsion of wheeled vehicles
    • B62M1/14—Rider propulsion of wheeled vehicles operated exclusively by hand power
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/02—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K5/00—Cycles with handlebars, equipped with three or more main road wheels
    • B62K5/02—Tricycles
    • B62K5/023—Tricycles specially adapted for disabled riders, e.g. personal mobility type vehicles with three wheels

Abstract

The handles are for tricycles propelled manually by handicapped people and to aid their propulsion. They pivot round a horizontal axle and are placed at 90 deg. to each other so that if one handle is vertical the other is horizontal. This means that if one handle is at a dead point the other is at a point where a maximum effort can be applied to it.

Description

Disposition spéciale des manivelles de tricycle à propulsion manuelle améliorant le rendement
Généralement, les manivelles de tricycle à propulsion manuelle ou de tricycle pour handicapés des membres inférieurs, sont composées de 2 manivelles opposées, pivotant autour d'un axe horizontal.Special arrangement of hand-propelled tricycle cranks improving efficiency
Generally, the cranks of tricycle with manual propulsion or of tricycle for handicapped people of the lower limbs, are composed of 2 opposite cranks, pivoting around a horizontal axis.

Si l'une des manivelles se trouve horizontalement en avant de l'axe, l'autre se trouve en arrière, le cycliste qui est assis, ne peut guère obtenir un bon rendement, qui n'est maximum, que lorsqu'elles sont placées verticalement, permettant ainsi au cycliste de tirer et de pousser l'une et l'autre.If one of the cranks is horizontally in front of the axis, the other is behind, the cyclist who is seated, can hardly obtain a good performance, which is maximum, only when they are placed vertically, allowing the cyclist to pull and push both.

Il y a donc par cycle complet de chaque manivelle placée b 18Q degrès l'une de l'autre, 2 moments de plein rendement et 2 moments de point mort, ou de faible rendement.There are therefore per complete cycle of each crank placed at 18Q degrees from each other, 2 moments of full efficiency and 2 moments of neutral, or of low efficiency.

La présente invention, consiste tout simplement a placer les manivelles å 90 degrés l'une de l'autre, ainsi, si l'une se trouve à un point mort, l'autre se trouve au rendement maximum, comme il est possible au cycliste de pousser comme de tirer, il lui sera facile de porter toute son énergie sur la manivelle ayant le meilleur rendement supprimant ainsi les moments e point mort. The present invention is simply to place the cranks 90 degrees from each other, so if one is in neutral, the other is at maximum efficiency, as is possible for the cyclist to push as to pull, it will be easy for him to carry all his energy on the crank having the best output thus eliminating the moments e dead center.

Claims (1)

Revendications Claims Disposition spéciale des manivelles de tricycle à propulsion manuelle ameliorant le rendementSpecial arrangement of hand-propelled tricycle cranks improving performance Revendication caractérisée par le fait que les manivelles pivotant autour d'un axe horizontal et opposées de 180 dégrées sont remplacées par des manivelles espacées de 90 dégrés dune part, ce qui permet dgavoir toujours uns manivelles - rendement maximum, c'est à dire placée verticalement si l'autre se trouve placée horizontalement, ce qui permet au cycliste de porter toute son énergie sur la mieux placée des manivelles Claim characterized in that the cranks pivoting around a horizontal axis and opposite by 180 degrees are replaced by cranks spaced 90 degrees on the one hand, which makes it possible to always have one cranks - maximum efficiency, ie placed vertically if the other is placed horizontally, which allows the cyclist to focus all his energy on the best placed cranks
FR8021553A 1980-10-08 1980-10-08 Drive handles for manually propelled tricycle - pivot round horizontal axle and are set at 90 degrees to each other Granted FR2491344A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8021553A FR2491344A3 (en) 1980-10-08 1980-10-08 Drive handles for manually propelled tricycle - pivot round horizontal axle and are set at 90 degrees to each other

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8021553A FR2491344A3 (en) 1980-10-08 1980-10-08 Drive handles for manually propelled tricycle - pivot round horizontal axle and are set at 90 degrees to each other

Publications (2)

Publication Number Publication Date
FR2491344A3 true FR2491344A3 (en) 1982-04-09
FR2491344B3 FR2491344B3 (en) 1983-02-25

Family

ID=9246686

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8021553A Granted FR2491344A3 (en) 1980-10-08 1980-10-08 Drive handles for manually propelled tricycle - pivot round horizontal axle and are set at 90 degrees to each other

Country Status (1)

Country Link
FR (1) FR2491344A3 (en)

Also Published As

Publication number Publication date
FR2491344B3 (en) 1983-02-25

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