GB2523799A - Wheel clutch device for a mobility aid - Google Patents

Wheel clutch device for a mobility aid Download PDF

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Publication number
GB2523799A
GB2523799A GB1403909.3A GB201403909A GB2523799A GB 2523799 A GB2523799 A GB 2523799A GB 201403909 A GB201403909 A GB 201403909A GB 2523799 A GB2523799 A GB 2523799A
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GB
United Kingdom
Prior art keywords
clutch
engagement
base
shaft
unit
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
GB1403909.3A
Other versions
GB201403909D0 (en
GB2523799B (en
Inventor
Shu-Chen Chan
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.)
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 GB1403909.3A priority Critical patent/GB2523799B/en
Publication of GB201403909D0 publication Critical patent/GB201403909D0/en
Publication of GB2523799A publication Critical patent/GB2523799A/en
Application granted granted Critical
Publication of GB2523799B publication Critical patent/GB2523799B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D11/00—Clutches in which the members have interengaging parts
    • F16D11/14—Clutches in which the members have interengaging parts with clutching members movable only axially
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
    • F16D48/062—Control by electric or electronic means, e.g. of fluid pressure of a clutch system with a plurality of fluid actuated clutches
    • 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
    • A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
    • A61G5/047—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven by a modular detachable drive system
    • 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
    • B62K3/00—Bicycles
    • B62K3/002—Bicycles without a seat, i.e. the rider operating the vehicle in a standing position, e.g. non-motorized scooters; non-motorized scooters with skis or runners
    • 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
    • B62K5/003—Cycles with four or more wheels, specially adapted for disabled riders, e.g. personal mobility type vehicles with four wheels
    • B62K5/007—Cycles with four or more wheels, specially adapted for disabled riders, e.g. personal mobility type vehicles with four wheels power-driven
    • 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
    • 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
    • B62K2204/00—Adaptations for driving cycles by electric motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/302—Signal inputs from the actuator
    • F16D2500/3026—Stroke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/502—Relating the clutch
    • F16D2500/50236—Adaptations of the clutch characteristics, e.g. curve clutch capacity torque - clutch actuator displacement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/702—Look-up tables
    • F16D2500/70205—Clutch actuator
    • F16D2500/70217—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/702—Look-up tables
    • F16D2500/70205—Clutch actuator
    • F16D2500/70235—Displacement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/706—Strategy of control
    • F16D2500/70605—Adaptive correction; Modifying control system parameters, e.g. gains, constants, look-up tables

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General 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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

A wheel clutch device has two hubs 10, a shaft module 20, an engagement base 30, a clutch base 40, a clutch unit 50 and an abutment unit 60. The shaft module 20 is inserted through the hubs 10 and has a shaft body 21. The engagement base 30 is mounted on one of the hubs 10 and has at least one engagement base groove 31. The clutch base 40 is mounted in the engagement base 30 engaged with the shaft body and has at least one alignment slit 43 aligned with the at least one engagement base groove 31. The clutch unit is mounted around the clutch base and has at least one engagement lump or tooth 51 selectively engaged with the at least one engagement base groove 31 and the at least one alignment slit 43. The abutment unit is combined with the shaft body and abuts the clutch unit. The clutch is useful for electric vehicles such as mobility scooters and makes it easier for a user to push the vehicle when the motor is not working.

Description

WHEEL CLUTCH DEVICE FOR A MOBILITY AID
BACKGROUND OF THE INVENTION
I. Field of the Invention
The present invention relates to a clutch device, particularly one suitable for a small electric vehicle, and more particularly to a wheel clutch device for a mobility scooter or rollator.
2. Descnption of Related Art A conventional mobility scooter or rollator has a body, two rear wheels, a front wheel, and a transmission module. The body has a bottom frame and a handle. The handle is mounted on a front side of the bottom frame. The rear wheels are rotatably mounted on a rear side of the bottom frame. The front wheel is rotatably mounted on the front side of the bottom frame, and a steering direction of the front wheel can be controlled by the handle. The transmission module is mounted on the bottom frame and has a cell, hvo motors, and two gear modules. The motors are electrically connected with the cell and are respectively mounted on the rear wheels. The gear modules are respectively connected between a motor and a corresponding rear vheel.
The motors drive the corresponding rear wheel by the gear module, such that the rollator can move forward.
When the cell is short of electrical power, a user needs to manually push the rollator to move. Howevei; the rear wheels carniot be rotated since the rear wheels are mechanically braked by the gear modules to keep from sliding. Therefore, it is laborious for the user to push the rollator to move, particularly for the user who has reduced mobility or is senior in age.
SUMMARY OF TI-IF INVENTION
The main objective of the present invention is to provide an improved wheel clutch device for an electric vehicle or rollatoi; to resolve the afore-mentioned problems.
The wheel clutch device has two hubs, a shaft module, an engagement base, a clutch base, a clutch unit and an abutment unit.
The hubs abut each other. The shaft module is inserted through the hubs and has a shaft body inserted through the hubs and a shaft engagement block mounted in the shaft body.
The engagement base is mounted on a corresponding one of the hubs at a position opposite to the other hub and has at least one engagement base groove radially formed in the engagement base.
The clutch base is mounted in the engagement base, is mounted around the shaft body, is engaged with the shaft engagement block, and has at least one alignment slit formed in a side of the clutch base and aligned with the at least one engagement base groove.
The clutch unit is mounted around the clutch base and has at least one engagement lump formed on a side of the clutch unit and selectively engaged with the at least one engagement base groove and the at least one alignment slit.
The abutment unit is mounted on the shaft body and has a cover and a spring. The cover is combined with the shaft body The spring is mounted around the clutch base and abuts between the cover and the clutch unit.
Other objectives, advantages and novel features of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a perspective view of a first preferred embodiment of a wheel clutch device in accordance with the present invention mounted on a rollator; Fig. 2 is an enlarged perspective view of the wheel clutch device in Fig. I; Fig. 3 is an exploded perspective view of the wheel clutch device in Fig. 2; Fig. 4 is a side view in partial section of the wheel clutch device along line 4-4 in Fig. 2; Fig. 5 is a cross sectional front view of the wheel clutch device along the 5-5 line in Fig. 4; Fig. 6 is a cross sectional side view in partial section of the wheel clutch device in Fig. 2; Fig. 7 is an operational cross sectional front view of the wheel clutch device along line 7-7 in Fig. 6; Fig. 8 is an exploded perspective view of a second preferred embodiment of a wheel clutch device in accordance with the present invention; Fig. 9 is a side view in partial section of the wheel clutch device in Fig. 8; and Fig. 10 is a cross sectional front view of the wheel clutch device along line 10-10 in Fig. 9.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
\Vith reference to Figs. ito 3, a first preferred embodiment of a wheel clutch device in accordance with the present invention is mounted on a mobility scooter or rollator 70 -the seat assembly is removed for clarity. The rollator 70 has a bottom frame 71, two rear wheel bodies 72, two motors 73 and two gear modules 74, wherein two wheel clutch devices of the present invention are respectively mounted in the two rear wheel bodies 72. The wheel clutch device has two hubs 10, a shaft module 20, an engagement base 30, a clutch base 40, a clutch unit 50 and an abutment writ 60.
The hubs 10 are hollow, abut and are combined with each other. One of the rear wheel bodies 72 is mounted around the hubs 10. Each hub 10 has a shaft hole II formed through the hub 10. The shaft holes 11 of the hubs 10 are aligned with each other.
With reference to Figs. 3 to 5, the shaft module 20 is inserted through the shaft holes 11 of the hubs 10 and has a shaft body 21, a shaft engagement block 22, two bearings 23 and a supporting tube 24. The shaft body 21 is inserted through the shaft holes 11 and has a combining hole 211 and a shaft engagement recess 212. The combining hole 211 is formed in an end of the shaft body 21. The shaft engagement recess 212 is formed in the shaft body 21 and is adjacent to the combining hole 211.
The shaft engagement block 22 is mounted in the shaft engagement recess 212. The bearings 23 are mounted around the shaft body 21, are respectively located in the hubs 10, and respectively abut the hubs 10. The supporting tube 24 is mounted around the shaft body 21 and is located between the bearings 23.
The engagement base 30 is formed on one of the hubs 10 and is located at a position opposite to the other hub 10. The engagement base 30 has two engagement base grooves 31 and a clutch base recess 32. The engagement base grooves 31 are radially and symmetrically formed in the engagement base 30. The clutch base recess 32 is formed in the corresponding hub 10 at a side opposite to the other hub 10 and communicates with the engagement base grooves 31.
The clutch base 40 is hollow, is mounted around the shaft body 21, is mounted in the clutch base recess 32 and has a clutch pad 41, a mounting collar 42, two alignment slits 43 and an engagement recess 44. The clutch pad 41 is mounted in the clutch base recess 32. The mounting collar 42 is formed on a side of the clutch pad 41 and is mounted around the shaft body 21 The alignment slits 43 are symmetrically formed in the clutch pad 41 and can be respectively aligned and communicate with the engagement base grooves 3 1. The engagement recess 44 is formed in an inner surface of the mounting collar 42 and is engaged with the shaft engagement block 22, such that die clutch base 40 and the shaft body 21 can cooperate with each other by a non-circular cross section to achieve a synchronous rotation purpose.
The clutch unit 50 is mounted around the mounting collar 42 and has two engagement lumps or teeth 51 and an abutment unit recess 52. The engagement lumps 5 1 are formed on a side of the clutch unit 50 that faces the clutch base 40 and are respectively inserted into the alignment slits 43 and respectively inserted into the engagement base grooves 31. The abutment unit recess 52 is formed in the clutch unit 50 at a side opposite to the engagement lumps 51.
The abutment unit 60 is mounted in the abutment unit recess 52 and has a spring 61, a combining unit 62 and a cover 63. The spring 61 is mounted around the shaft body 21 and abuts die clutch unit 50. The combining unit 62 is combined with the combining hole 211 by threads. The cover 63 is mounted around the combining unit 62, is clamped by the combining unit 62 and the shaft body 21, and abuts the spring 61.
With reference to Figs. I, 3, 4 and 5, in use, the two alignment slits 43 and the two engagement base grooves 3 1 are respectively aligned with each other, and each engagement lump 51 is inserted into the corresponding alignment slit 43 and the corresponding engagement base groove 31. The shaft body 21 is driven by the motor 73 and the gear module 74. When the motor 73 is operated, the gear module 74 is driven by the motor 73 to chive the shaft body 21 to rotate. When the clutch base 40 is rotated, the hubs 10 and the clutch unit 50 are also rotated by the clutch base 40. The corresponding rear wheel body 72 is rotated by the hubs 10, such that the rollator can be moved.
With reference to Figs. I, 6 and 7, when the rollator cannot be moved due to power shortage of the cell and has to be manually pushed by a user, the operation state of the rear wheel bodies 72 must be idle relative to the gear nodules 74 and the motors 73. First, the clutch unit 50 is pulled away from the clutch base 40 and is rotated relative to the clutch base 40 until the two engagement lumps 51 are detached from the engagement slits 43 and the engagement base grooves 31. Then, the rear wheel body 72 can be rotated without affecting the clutch unit 50 and the hubs 10.
Therefore, when the rear wheel body 72 is rotated, the clutch base 40 is maintained at a fixed status, such that the shaft body 21 can be maintained at a fixed status as well.
The rotation of the rear wheel body 72 cannot cause the shaft body 21 to rotate, so the rotation of the rear wheel body 72 cannot be affected by the gear module 74 and the rear wheel body 72 can be rotated smoothly After the rollator is pushed to a destination, the clutch unit 50 is rotated to align the engagement base grooves 3 1 with the engagement lumps 51. Then, the rollator is slightly pushed for a short distance until the alignment slits 43 are respectively aligned with the engagement base grooves 3!. When each alignment slit 43 is aligned with the corresponding engagement base groove 31, the clutch unit 50 is not blocked by the clutch pad 41. The spring 61 presses the clutch unit 50 inward, such that the engagement lumps 51 can be engaged with the alignment slits 43 and the engagement base grooves 31. Therefore, the wheel clutch device can return to an original state relative to the rollator.
With reference to Figs. 8 to ID, a second preferred embodiment of the wheel clutch device in accordance with the present invention has two hubs bA, a shaft module 20, an engagement base 30A, a clutch base 40A and a clutch unit 50A.
The engagement base 30A is detachably mounted on a side of one of the hubs I OA and has three engagement base grooves 31 A. The clutch base 40A is mounted in the engagement base 30A and on a corresponding hub I OA. The clutch base 40A has three alignment slits 43A respectively aligned with the engagement base grooves 3 1A. The shaft module 20 is inserted through the hubs lOA and the engagement base 30A, and is engaged with the clutch base 40A. The clutch unit 50A is mounted in the corresponding hub IDA and around the clutch base 40A. The clutch unit 50A has three engagement lumps SlArespectively aligned and engaged with the engagement base grooves 31 A and the alignment slits 43A.
From the above description, it is noted that the present invention has the following advantages: \Vhen the rollator needs to be manually pushed forward by the usei; the rear wheel body 72 is controlled to be idle relative to the rollator by the clutch unit 50.
The clutch unit 50 is pulled away from the hubs ID and then is rotated relative to the shaft body 21. Then, when the engagement lumps 51 are disengaged from the alignment slits 43 and the engagement base grooves 31, the hubs 10 are idle relative to the shaft body 21, such that the rear wheel body 72 is idle relative to the motor 72 and the gear module 74. Therefore, the rollator can be pushed smoothly by the user.
After the rollator alTives at the destination, the clutch unit 50 is rotated again,
S
and then the engagement lumps 51 are respectively aligned with the engagement base grooves 31. The rollator is then pushed forward for a short distance to rotate the clutch base 40. When the clutch base 40 is rotated, the alignment slits 43 are also rotated to respectively align with the engagement lumps 51 and with the engagement base grooves 31. Then, the engagement lumps 51 are pressed by the spring 61 to be engaged with the alignment slits 43 and the engagement base grooves 31. Therefore, the wheel clutch device is recovered to the original state, such that it is convenient for the user to use the wheel clutch device.
Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the tenns in which the appended claims are expressed.
Reference numerals HO luibs 1OA hubs II shafthole shaftmodule 21 shaftbody 22 shaft engagement block 23 bearings 24 supportingtube engagement base 30A engagement base 31 engagement base grooves 31 A engagement base grooves, 32 clutch base recess 1: clutch base 40A clutch base 41 clutchpad 42 collar alignment slits 43A alignment slits 44 engagement recess clutch unit 50A: clutch unit 51 engagement teeth 52 abutment unit recess abutment unit 61 spring 62 combining unit 63 cover rollator 71 bottom frame 72 rear wheel bodies 73 motors 74 gear modules 21! combining hole 212 shaft engagement recess I0

Claims (8)

  1. CLAIMS: A wheel clutch device for a mobility vehicle, having: two hubs abutting each other; a shaft module inserted through the hubs and having a shaft body inserted Through the hubs; and a shaft engagement block in the shaft body; an engagement base on a corresponding one of the hubs at a position opposite to the other hub and having at least one engagement base groove radially fonned in the engagement base; a clutch base mounted in the engagement base, mounted around the shaft body, and engaged with the shaft engagement block, the clutch base having at least one alignment slit fonned in a side of the clutch base and aligned with the at least one engagement base groove; a clutch unit mounted around the clutch base and having at least one engagement tooth, the engagement tooth formed on a side of the clutch unit and selectively engaged with the at least one engagement base groove and the at least one alignment slit and an abutment unit mounted on the shaft body and having a cover combined with the shaft body; and a spring mounted around the clutch base and abutting between the cover and the clutch unit.
  2. 2. A wheel clutch device as claimed in claim 1, wherein the clutch base has a clutch pad mounted in the engagement base; and a mounting collar formed on a side of the clutch pad, mounted around the shaft body, and engaged with the shaft engagement block.
  3. 3. A wheel clutch device as claimed in claim 1 or 2, wherein the engagement base is integrally formed on the corresponding hub.
  4. 4. A wheel clutch device as claimed in any preceding claim, wherein the engagement base has two engagement base grooves, the clutch base has two alignment slits, and the clutch unit has two engagement teeth.
  5. 5. A wheel clutch device as claimed in claim 4, wherein the engagement base has three engagement base grooves, the clutch base has three alignment slits, and the clutch unit has three engagement teeth.
  6. 6. A wheel clutch device as claimed in any preceding claim, wherein the engagement base is detachably mounted on the corresponding hub.
  7. 7. A wheel clutch device substantially as described herein with reference to any of the attached drawings.
  8. 8. An electric vehicle incorporating a wheel clutch device according to any preceding claim.
GB1403909.3A 2014-03-05 2014-03-05 Wheel clutch device for a mobility aid Active GB2523799B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1403909.3A GB2523799B (en) 2014-03-05 2014-03-05 Wheel clutch device for a mobility aid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1403909.3A GB2523799B (en) 2014-03-05 2014-03-05 Wheel clutch device for a mobility aid

Publications (3)

Publication Number Publication Date
GB201403909D0 GB201403909D0 (en) 2014-04-16
GB2523799A true GB2523799A (en) 2015-09-09
GB2523799B GB2523799B (en) 2020-02-19

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ID=50490852

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1403909.3A Active GB2523799B (en) 2014-03-05 2014-03-05 Wheel clutch device for a mobility aid

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200088242A1 (en) * 2018-09-19 2020-03-19 Zhejiang Linix Motor Co., Ltd Reduction Gearbox Transmission Separation Mechanism

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3669476A (en) * 1971-06-25 1972-06-13 Dana Corp Selective front wheel drive hub
US4266646A (en) * 1978-11-06 1981-05-12 Warn Industries, Inc. Wheel stud mounted locking clutch
US4610558A (en) * 1983-09-15 1986-09-09 Erickson Mervin L Selectively free wheeling or drive hub for vehicles
US4854434A (en) * 1987-02-04 1989-08-08 Tochigi-Fuji Sangyo Kabushiki Kaisha Hub clutch
US5394968A (en) * 1993-05-19 1995-03-07 Yu-Shu; Lin Clutch applied between transmission shaft and wheel of an electric cart

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3669476A (en) * 1971-06-25 1972-06-13 Dana Corp Selective front wheel drive hub
US4266646A (en) * 1978-11-06 1981-05-12 Warn Industries, Inc. Wheel stud mounted locking clutch
US4610558A (en) * 1983-09-15 1986-09-09 Erickson Mervin L Selectively free wheeling or drive hub for vehicles
US4854434A (en) * 1987-02-04 1989-08-08 Tochigi-Fuji Sangyo Kabushiki Kaisha Hub clutch
US5394968A (en) * 1993-05-19 1995-03-07 Yu-Shu; Lin Clutch applied between transmission shaft and wheel of an electric cart

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200088242A1 (en) * 2018-09-19 2020-03-19 Zhejiang Linix Motor Co., Ltd Reduction Gearbox Transmission Separation Mechanism
US10830284B2 (en) * 2018-09-19 2020-11-10 Zhejiang Linix Motor Co., Ltd. Reduction gearbox transmission separation mechanism
DE102019100153B4 (en) 2018-09-19 2024-02-01 Zhejiang Linix Motors Co., Ltd Transmission disconnection mechanism of a reduction gear

Also Published As

Publication number Publication date
GB201403909D0 (en) 2014-04-16
GB2523799B (en) 2020-02-19

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