WO2022050870A1 - Wheelchair undercarriage with side-mounted screw propulsion mechanisms - Google Patents

Wheelchair undercarriage with side-mounted screw propulsion mechanisms Download PDF

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Publication number
WO2022050870A1
WO2022050870A1 PCT/RU2021/000376 RU2021000376W WO2022050870A1 WO 2022050870 A1 WO2022050870 A1 WO 2022050870A1 RU 2021000376 W RU2021000376 W RU 2021000376W WO 2022050870 A1 WO2022050870 A1 WO 2022050870A1
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WO
WIPO (PCT)
Prior art keywords
wheelchair
rotor
screw
technical solution
proposed
Prior art date
Application number
PCT/RU2021/000376
Other languages
French (fr)
Russian (ru)
Inventor
Евгений Владимирович СУРОВ
Original Assignee
Евгений Владимирович СУРОВ
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 Евгений Владимирович СУРОВ filed Critical Евгений Владимирович СУРОВ
Publication of WO2022050870A1 publication Critical patent/WO2022050870A1/en

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Classifications

    • 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
    • A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
    • 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
    • A61G5/06—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D57/00—Vehicles characterised by having other propulsion or other ground- engaging means than wheels or endless track, alone or in addition to wheels or endless track
    • B62D57/02—Vehicles characterised by having other propulsion or other ground- engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members
    • B62D57/036—Vehicles characterised by having other propulsion or other ground- engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members screw type, e.g. Archimedian screw

Definitions

  • the utility model "Wheelchair chassis” relates to transport engineering, in particular to off-road transport equipment, and can be used as a wheelchair chassis to overcome public flights of stairs.
  • the stated goal is achieved by the fact that in the chassis of the wheelchair, containing the running bearings, the carrier platform of the drive system and the device for stabilizing the position of the platform, the running bearings are made in the form of onboard auger propellers.
  • the driving part of the screw propeller is the wide bearing central body of the rotor, and the low helical blade is soil-capturing. (Fig. 2)
  • the weight load is transferred from the rotor body to the helical blades by increasing their height and reducing the diameter of the rotor body.
  • the propeller should not crawl along the ground, clinging to the auger, but roll without touching the surface of the rotor body, turning over the rollers (Fig. 4a, 46, 4c) located between the cheeks of the auger (Fig. 3.5), double rollers from different sides (Fig. 4 c ) from the screw blade. Perhaps it will be almost or a solid screw of rollers (Fig. 5.6) or other types of lugs (Fig. 7.8) like a tank caterpillar.
  • the wheelchair with the proposed chassis acquires patency both on weakly bearing soils (sand, peat, snow, etc.) and on hard surfaces (asphalt, concrete, etc.), thereby expanding functionality of the chassis according to the technical solution proposed by the patent.
  • Steps indicates the main parameters of stairs used in construction.
  • the stair height and width parameters will determine the height of the helical blade and the pitch of the auger, which will allow the auger to walk up the stairs ( Figure 9).
  • the location of the auger drive and its reference points on the auger shaft, in any place, allows the front of the auger to overcome any uneven areas with a screw with rollers.
  • the wheelchair with the proposed chassis is capable of moving forward and backward, with counter-rotating or opposite augers rotating at the same speed, is able to turn (turn around) with augers rotating in the same direction at different speeds, i.e. is able to repeat all the movements of wheelchairs on wheels, caterpillars and wheel-caterpillars. Additionally, a wheelchair equipped with the proposed chassis is able to move left and right (even on flights of stairs for general use) with augers rotating in one direction at the same speed, thereby expanding the functionality of the wheelchair chassis.
  • the technical solution proposed by the invention is new, has an inventive step and is industrially applicable.
  • Fig. 1 View of two parallel cheeks, between which the rollers are located.
  • FIG. 2 View of a screw propeller with a wide rotor and a small helical blade.
  • Fig. 5 Type of movement of the screw propeller with an increased width of the rollers.
  • Fig. 6 View of a continuous belt of rotating rollers or support devices.
  • Fig. 7 Type of support devices.
  • Fig. 8 Type of support devices.
  • Fig. 9 View of the movement of the chassis on the steps of the stairs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)

Abstract

The utility model entitled "Wheelchair undercarriage" relates to transportation, and more particularly to off-road transportation means, and can be used as a propulsion mechanism in wheelchairs for negotiating public staircases. The essence of the technical solution according to the proposed utility model consists in that the weight load is transferred from the body of a rotor to screw vanes by increasing the height of the latter and decreasing the diameter of the body of the rotor. Arranged across the diameter of the screw vanes are roller bearings or other ground-engaging elements. Using the proposed technical solution expands the functional capabilities of wheelchair undercarriages during travel on hard surfaces (asphalt, concrete and the like) with obstacles in the form of thresholds, curbs, steep slopes and public staircases, using the national standard GOST 8717 "Steps" to determine the parameters of a screw propulsion mechanism.

Description

WO 2022/050870 IZZA nn^izi / z- rnrrrnn i i л л i и i .PCT/RU2021/000376 шлиии КРЕСЛА-КОЛЯСКИ С БОРТОВЫМИ шмькиьыми WO 2022/050870 IZZA nn^izi / z- rnrrrnn i i l l i and i .PCT/RU2021/000376
ДВИЖИТЕЛЯМИ ENGINES
Описание. Description.
Полезная модель «Шасси кресла-коляски» относится к транспортному машиностроению, в частности к внедорожной транспортной технике, и может быть использовано в качестве шасси кресла-коляски для преодоления лестничных маршей общего пользования. Известно шасси кресла-коляски патент № 2018129363. При всех достоинствах конструкторской схемы известного шасси- прототипа последнее может быть усовершенствовано с целью расширения функциональных возможностей шасси кресла-коляски для движения по твердым поверхностям (асфальт, бетон и т.п.) с препятствиями в виде порогов, бордюров, эскарпов, включая лестничные марши общего пользования. Заявленная цель достигается тем, что в шасси кресла-коляски, содержащем ходовые опоры, несущую платформу системы приводов и устройство стабилизации положения платформы, ходовые опоры выполнены в виде бортовых шнековых движителей. The utility model "Wheelchair chassis" relates to transport engineering, in particular to off-road transport equipment, and can be used as a wheelchair chassis to overcome public flights of stairs. Known wheelchair chassis patent No. 2018129363. With all the advantages of the design scheme of the known prototype chassis, the latter can be improved in order to expand the functionality of the wheelchair chassis for movement on hard surfaces (asphalt, concrete, etc.) with obstacles in the form thresholds, curbs, scarps, including flights of stairs for general use. The stated goal is achieved by the fact that in the chassis of the wheelchair, containing the running bearings, the carrier platform of the drive system and the device for stabilizing the position of the platform, the running bearings are made in the form of onboard auger propellers.
Предлагаемое полезной моделью техническое решение предлагает использование принципиально нового вида шнекового движителя. The technical solution proposed by the utility model suggests the use of a fundamentally new type of screw propeller.
Известен (см. авторское свидетельство № 49 899 (кл. 63К/23) от 31.10.1935) шнековый движитель с винтовой лопастью, выполненной в виде двух параллельных щек, между которыми расположены ролики. (Фиг.1) Known (see copyright certificate No. 49 899 (cl. 63K / 23) dated 10/31/1935) screw propeller with a helical blade made in the form of two parallel cheeks, between which the rollers are located. (Fig.1)
Функциональные возможности известного шнекового движителя- прототипа ограничены при перемещении по твердым поверхностям асфальт, бетон и т.п. The functionality of the known screw propulsion prototype is limited when moving on hard surfaces of asphalt, concrete, etc.
Движущей частью шнекового движителя, является широкое несущее центральное тело ротора, а невысокая винтовая лопасть является грунтозахватывающей. (Фиг. 2) The driving part of the screw propeller is the wide bearing central body of the rotor, and the low helical blade is soil-capturing. (Fig. 2)
В результате вся весовая нагрузка ложится на центральное тело ротора, а винтовая вминается в грунт. Возникающее сопротивление требует увеличение мощности двигателя и снижает скорость передвижения. As a result, the entire weight load falls on the central body of the rotor, and the helical one is pressed into the ground. The resulting resistance requires an increase in engine power and reduces the speed of movement.
С целью устранения отмеченных недостатков в предлагаемом шнековом движителе с винтовой лопастью, весовая нагрузка переносится с тела ротора на винтовые лопасти путем увеличения их высоты, и уменьшения диаметра тела ротора. Движитель должен не ползти по земле цепляясь шнеком, а катится не касаясь телом ротора поверхности, перебирая роликами (Фиг. 4а, 46, 4в) расположенными между щек шнека (Фиг. 3,5), двойными роликами с разных сторон (Фиг.4 в) от шнековой лопасти. Возможно это будет почти или сплошной винт из роликов (Фиг. 5,6) или других видов грунтозацепов (Фиг.7,8) как танковая гусеница. In order to eliminate the noted shortcomings in the proposed screw propeller with a helical blade, the weight load is transferred from the rotor body to the helical blades by increasing their height and reducing the diameter of the rotor body. The propeller should not crawl along the ground, clinging to the auger, but roll without touching the surface of the rotor body, turning over the rollers (Fig. 4a, 46, 4c) located between the cheeks of the auger (Fig. 3.5), double rollers from different sides (Fig. 4 c ) from the screw blade. Perhaps it will be almost or a solid screw of rollers (Fig. 5.6) or other types of lugs (Fig. 7.8) like a tank caterpillar.
Кресло-коляска с предлагаемым шасси(Фиг.З,5) приобретает проходимость как на слабонесущих грунтах (песок, торф, снег и т.п.), так и на твердых поверхностях (асфальт, бетон и т.п.) тем самым расширяя функциональные возможности шасси по предлагаемому патентом техническому решению. The wheelchair with the proposed chassis (Fig.Z, 5) acquires patency both on weakly bearing soils (sand, peat, snow, etc.) and on hard surfaces (asphalt, concrete, etc.), thereby expanding functionality of the chassis according to the technical solution proposed by the patent.
Для преодоления препятствиями в виде порогов, бордюров, эскарпов, включая лестничные марши общего пользования, предлагается обратиться к ГОСТ 8717 «Ступени», где указаны основные параметры лестничных ступеней используемые в строительстве. Параметры высоты и ширины ступеней будут определять высоту винтовой лопасти и шаг шнека, что позволит шнековому движителю шагать по лестнице (Фиг.9). Расположение привода шнека и его опорных точек на валу шнека, в любом месте, позволяет передней части шнека винтом с роликами преодолевать любые неровные участки. To overcome obstacles in the form of thresholds, curbs, scarps, including flights of stairs for general use, it is proposed to refer to GOST 8717 "Steps", which indicates the main parameters of stairs used in construction. The stair height and width parameters will determine the height of the helical blade and the pitch of the auger, which will allow the auger to walk up the stairs (Figure 9). The location of the auger drive and its reference points on the auger shaft, in any place, allows the front of the auger to overcome any uneven areas with a screw with rollers.
Кресло-коляска с предлагаемым шасси способно двигаться вперед- назад, при встречно или в разные стороны вращающихся с одинаковыми скоростями шнеках, способно поворачиваться (разворачиваться) при вращающихся в одну сторону с разными скоростями шнеках, т.е. способно повторять все движения кресел- колясок на колесном, гусеничном и колесно-гусеничном ходу. Дополнительно кресло-коляска, снабженное предлагаемым шасси, способно двигаться вправо-влево (даже на лестничных маршах общего пользования) при вращающихся в одну сторону с одинаковыми скоростями шнеках, тем самым расширяя функциональные возможности шасси кресла-коляски. The wheelchair with the proposed chassis is capable of moving forward and backward, with counter-rotating or opposite augers rotating at the same speed, is able to turn (turn around) with augers rotating in the same direction at different speeds, i.e. is able to repeat all the movements of wheelchairs on wheels, caterpillars and wheel-caterpillars. Additionally, a wheelchair equipped with the proposed chassis is able to move left and right (even on flights of stairs for general use) with augers rotating in one direction at the same speed, thereby expanding the functionality of the wheelchair chassis.
Таким образом, по мнению заявителя, предлагаемое изобретением техническое решение является новым, имеет изобретательский уровень и промышленно применимо. Thus, according to the applicant, the technical solution proposed by the invention is new, has an inventive step and is industrially applicable.
Перечень фигур. List of figures.
Фиг. 1 Вид двух параллельных щек, между которыми расположены ролики. Fig. 1 View of two parallel cheeks, between which the rollers are located.
1 - полое цилиндрическое тело ротора 1 - hollow cylindrical body of the rotor
2 - щека 2 - cheek
3 - ролик 4 - ось 3 - roller 4 - axis
Фиг. 2 Вид шнекового движителя с широким ротором и маленькой винтовой лопастью. Fig. 2 View of a screw propeller with a wide rotor and a small helical blade.
1 - полое цилиндрическое тело ротора 1 - hollow cylindrical body of the rotor
2 - щека 2 - cheek
Фиг. 3 Вид передвижения шнекового движителя. Fig. 3 Type of movement of the screw propeller.
1 - полое цилиндрическое тело ротора 1 - hollow cylindrical body of the rotor
2 - щека 2 - cheek
3 - ролик 3 - roller
Фиг. 4 Виды роликов. Fig. 4 Types of rollers.
3 - ролик 3 - roller
Фиг. 5 Вид передвижения шнекового движителя с увеличеной шириной роликов. Fig. 5 Type of movement of the screw propeller with an increased width of the rollers.
1 - полое цилиндрическое тело ротора 1 - hollow cylindrical body of the rotor
2 - щека 2 - cheek
3 - ролик 3 - roller
Фиг. 6 Вид сплошной ленты вращающихся роликов или опорных приспособлений. Fig. 6 View of a continuous belt of rotating rollers or support devices.
1 - полое цилиндрическое тело ротора 1 - hollow cylindrical body of the rotor
2 - щека 2 - cheek
3 - ролик или другое опорное приспособление 3 - roller or other supporting device
Фиг. 7 Вид опорных приспособлений. Fig. 7 Type of support devices.
2 - щека 2 - cheek
3 - опорное приспособление 3 - support device
4 - ось 4 - axis
Фиг. 8 Вид опорных приспособлений. Fig. 8 Type of support devices.
2 - щека 2 - cheek
3 - опорное приспособление 3 - support device
4 - ось 4 - axis
Фиг. 9 Вид движения шасси по ступеням лестницы. Fig. 9 View of the movement of the chassis on the steps of the stairs.
1 - полое цилиндрическое тело ротора 1 - hollow cylindrical body of the rotor
2 - щека 2 - cheek
5 - лестничные ступени 5 - stair steps
Документы, цитированные в отчёте о поиске Documents cited in the search report
SU 49899А1 1936.08.31 Кезгермезов ГЛ. Шнековый движитель SU 49899А1 1936.08.31 Kezgermezov GL. screw propeller
SU 551215А1 1977.03.25 Согин А. В. Шнековый движитель SU 551215А1 1977.03.25 Sogin A.V. Screw propeller
RU 2653387 Дядченко Н.П. Шнековый движитель RU 2653387 Dyadchenko N.P. screw propeller
RU 2609181 Лялин А. П. Шнековый движитель RU 2609181 Lyalin A.P. Screw propeller
RU 2018129363, 2018.08.10 Дядченко Н.П. Шасси кресла-коляскиRU 2018129363, 2018.08.10 Dyadchenko N.P. Wheelchair Chassis
ГОСТ 8717 Ступени GOST 8717 Steps

Claims

Формула изобретения. Claim.
Шасси кресла-коляски, с бортовыми шнековыми движителями, состоящими из цилиндрического ротора высоким с винтовым гребнем, по диаметру которого расположены ролики. Chassis of a wheelchair, with onboard auger propellers, consisting of a high cylindrical rotor with a helical ridge, along the diameter of which the rollers are located.
4 4
PCT/RU2021/000376 2020-09-03 2021-09-14 Wheelchair undercarriage with side-mounted screw propulsion mechanisms WO2022050870A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2020129318 2020-09-03
RU2020129318 2020-09-03

Publications (1)

Publication Number Publication Date
WO2022050870A1 true WO2022050870A1 (en) 2022-03-10

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Application Number Title Priority Date Filing Date
PCT/RU2021/000376 WO2022050870A1 (en) 2020-09-03 2021-09-14 Wheelchair undercarriage with side-mounted screw propulsion mechanisms

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110137844A (en) * 2010-06-18 2011-12-26 김병기 Screw climber
KR101383044B1 (en) * 2012-12-27 2014-04-08 근로복지공단 Electric wheelchairs
RU2653387C1 (en) * 2017-09-25 2018-05-08 Николай Петрович Дядченко Screw motor
RU2685075C1 (en) * 2018-08-10 2019-04-16 Николай Петрович Дядченко Chassis of wheelchair

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110137844A (en) * 2010-06-18 2011-12-26 김병기 Screw climber
KR101383044B1 (en) * 2012-12-27 2014-04-08 근로복지공단 Electric wheelchairs
RU2653387C1 (en) * 2017-09-25 2018-05-08 Николай Петрович Дядченко Screw motor
RU2685075C1 (en) * 2018-08-10 2019-04-16 Николай Петрович Дядченко Chassis of wheelchair

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