WO2021140320A1 - Landau motorisé - Google Patents

Landau motorisé Download PDF

Info

Publication number
WO2021140320A1
WO2021140320A1 PCT/GB2021/050024 GB2021050024W WO2021140320A1 WO 2021140320 A1 WO2021140320 A1 WO 2021140320A1 GB 2021050024 W GB2021050024 W GB 2021050024W WO 2021140320 A1 WO2021140320 A1 WO 2021140320A1
Authority
WO
WIPO (PCT)
Prior art keywords
pram
motor
power module
unitary
housing
Prior art date
Application number
PCT/GB2021/050024
Other languages
English (en)
Inventor
Philip Jeffrey TAYLOR
Original Assignee
Silver Cross (Ip) Limited
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 Silver Cross (Ip) Limited filed Critical Silver Cross (Ip) Limited
Priority to CN202180007286.4A priority Critical patent/CN114829228A/zh
Publication of WO2021140320A1 publication Critical patent/WO2021140320A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/0026—Propulsion aids
    • B62B5/0033—Electric motors
    • B62B5/0036—Arrangements of motors
    • B62B5/005—Detachably mounted motor units
    • 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
    • A61G5/027—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person by using auxiliary detachable mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/0026—Propulsion aids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/0026—Propulsion aids
    • B62B5/0033—Electric motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/0026—Propulsion aids
    • B62B5/0033—Electric motors
    • B62B5/0036—Arrangements of motors
    • B62B5/0046—One motor drives two wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/0026—Propulsion aids
    • B62B5/0033—Electric motors
    • B62B5/0053—Arrangements of batteries

Definitions

  • the present invention relates to a unitary motor and power module for a pram and a powered pram comprising said unitary motor and power module.
  • Prams also known as strollers, buggies and push chairs
  • electric motors to provide rotational force to the wheels, thereby making the pram easier for the operator to push
  • GB 2563573 A is an example of such a pram.
  • prams lack flexibility as, although the battery may be removed, the motor remains attached to the pram and, in the absence of the battery to provide power to it, simply provides unwanted excess weight.
  • a first aspect of the present invention is a unitary motor and power module for a pram comprising: a housing containing: an electric motor, and a battery electrically coupled to the motor; and a drive shaft located at respective ends of the housing configured such that, when the housing is placed between a pair of pram wheels along a common rotational axis of the wheels, the drive shafts engage with the respective wheels and are operable to transmit rotational force from the electric motor to the wheels.
  • the unitary nature of the motor and power module allows for the entire module to be attached to the pram when additional power is needed and for the entire module to be removed when additional power is not needed. This saves significantly on weight when the motor is not required, making the pram easier to move. It will be appreciated that one drive shaft may be provided for each electric motor.
  • the motor and battery in certain configurations, there are two electric motors and so there are two drive shafts.
  • a single driveshaft which extends between opposing ends of the module may be provided.
  • keeping the motor and battery in a single unit also protects them from the external environment when the module is in use and when it is removed from the pram.
  • the unitary nature of the module also allows for easy customisation of products (e.g. with different ratings of motor and/or battery) for the manufacturer, seller and user.
  • the provision of a unitary battery and motor unit allows for a modular system in which a selection of prams of different functionality may be provided.
  • prams which do not include any powered assistance
  • prams which include a wiring loom within the frame and having a plurality of electrical connection points to which electronic accessories may be attached to a battery held in the same position as the unitary module of the present invention, or a pram including the unitary module of the present invention.
  • the battery needs to be in electrical connection with the motor(s) which power the pram. As such, where the battery is removable, there needs to be an electrical connector which is able to be reversibly connected.
  • the housing may be provided with means to engage with a static part of the pram, such as the frame, when the housing is placed between the pair of pram wheels.
  • Engaging with a static part of the pram ensures that, when the motor applies rotational force to the wheels, it is the wheels that rotate in the direction of the motor, rather than the motor that rotates in the opposite direction.
  • Any suitable anti-rotation means may be used.
  • Static is to be understood as part of a pram which does not rotate when the pram is in motion. It will be appreciated that the static part of the pram may be moveable, such as when the pram is being folded, but is static to the extent that it is able to stop the module rotating when torque is provided by the motor(s).
  • the means may comprise a protuberance extending from the housing, the protuberance configured to co-operate with a recess in the static part of the pram.
  • the means may comprise a recess in the housing (which may be located at an end of the housing), the recess configured to cooperate with a protuberance extending from the static part of the pram.
  • the recess(es) and/or protuberances are configured such that the unitary motor and power module may be installed between the coaxial wheels of the pram simply by sliding the module into place in a radial manner.
  • the recess includes a channel connecting radially to the outer diameter through which a protuberance may be passed.
  • the apparatus may be configured such that the unitary motor and power module may be installed in an axial manner.
  • the housing of the unitary motor and power module may be shaped such that it may be engaged with a pram in a specific orientation.
  • the housing may include a flattened portion which is shaped to engage with a corresponding flattened portion on a pram.
  • the flattened portions may serve to prevent relative rotation of the unitary motor and power module and a pram with which it is engaged.
  • the or each drive shaft may be splined.
  • the presence of splines on the drive shaft permits the shaft to mechanically interlock with a corresponding socket on, or coupled to, the wheel. This provides for the transfer of rotational force from the motor to the wheels.
  • Any suitable number of splines may be used.
  • the drive shaft may simply have a cross section that prevents rotation of the shaft relative to the wheel once it is fitted into the corresponding socket.
  • the end of the shaft may have a non-circular cross-section. By having a non-circular cross section, such as a square cross-section, the shaft may engage with a corresponding receiving portion, such as a socket, of a pram and allow the shaft to power the wheels of the pram.
  • Each drive shaft may be moveable from an extended position, which may be proud of the surface of the end of housing, to a retracted position flush with or axially inwards of the surface of the end of the housing. Retraction of the drive shaft allows the unitary motor and power unit to be easily installed and removed from between the pram wheels, while the extended position ensures good mechanical contact with the socket on, or coupled to, the wheels and an efficiency transfer of rotational force.
  • the terminus of the or each drive shaft may be frustoconical.
  • the drive shaft being narrower at the tip makes it easier to align the drive shaft with the corresponding socket on, or coupled to, the wheels.
  • Substantially any shape that is narrowest at its terminus may exhibit this benefit (e.g. shapes from a full cone to a prism with a chamfered edge).
  • the terminus of the or each drive shaft may be chamfered to allow easy engagement with the pram.
  • the electric motor may be operable to provide rotational force when one or both drive shafts are turned. In other words, the motor is triggered to rotate in sympathy to an externally applied rotational force.
  • a motor acts as a ‘power assist’, reducing the effort expended by the operator to push the pram on which the unitary motor and power module is fitted. This is particularly beneficial when, for example, pushing the pram up an incline.
  • the apparatus may comprise a control module which is configurable to selectively provide power to the motor in response to detected inputs.
  • the apparatus may include one or more sensors to detect movement of the pram.
  • the sensors may be connected to a control module.
  • the control module may be configurable to provide adjustable degrees of assistance from the motor(s).
  • the unitary motor and power module may further comprise at least one of a rotation sensor and a torque sensor. Each of these sensors is able to detect the imparting of rotational force to the drive shaft and/or wheel by sensing movement of these parts and detecting the application of force to them respectively.
  • a portion of the surface of the or each drive shaft may comprise an electric contact electrically coupled to the battery.
  • a portion of the surface of the or each end of the housing may comprise an electric contact electrically coupled to the battery.
  • the provision of an external electrical contact permits charging of the unitary motor and power module.
  • the unitary module may include a charging port via which the battery may be charged.
  • the invention is not particularly limited to the way in which the battery may be charged.
  • the battery may be charged via connection to a mains power supply, which may include a transformer to alter the voltage and/or current provided to the battery depending on the requirements of the battery.
  • the battery may be charged via a USB cable or similar.
  • these contact points may provide suitable means for the provision of electrical power to these circuits from the battery.
  • the electrical connection from the battery to any wiring within the frame of the pram may be provided by an electrical contact located on the unitary motor and battery module, and an electrical contact located on the frame.
  • the battery may be a lithium ion battery. Lithium ion batteries are able to provide good performance for portable, rechargeable battery applications.
  • the electric motor may be a brushed or a brushless electric motor.
  • the motor may be operable to act as a dynamo. When the motor is not in use, it may be beneficial to have rotation of the drive shaft generate electrical power, which may be used to recharge the battery. Such ‘regenerative braking’ would be particularly beneficial when descending inclines.
  • the motor may therefore be configured to provide a braking force to the wheels. There may be a clutch which disconnects the wheels from the electric motor(s) to allow free rotation of the wheels.
  • the unitary module may comprise a shaft at each end which is configured to be rotated by an electric motor. By having separately driven drive shafts, the motors are able to rotate at different rates. This may be advantageous to allow improved steering of a pram.
  • the unitary module may be configured to adjust the power provided to each electric motor in order to adjust the power provided at each drive shaft. This may be advantageous in steering a pram.
  • a second aspect of the present invention is a powered pram comprising a unitary motor and power module according to the first aspect of the present invention.
  • the pram is configured to accept the unitary motor and power module between a coaxial set of wheels (e.g. the rear wheels).
  • Being configured to accept the unitary motor and power module may comprise at least one of one or more sockets on, or coupled to, the wheels that are configured to accept the drive shaft (i.e. being complementary in shape) and a static part comprising a recess or protuberance that is complementary to the protuberance or recess of the housing.
  • the powered pram may further comprise wiring passed through the frame of the pram to connect electrical devices to the battery when the housing is placed between the pair of pram wheels.
  • the electrical devices may include one or more of lights, speakers, heaters, solar panels, sockets, smart phones, fans, air filtration devices, video cameras, tablets, satellite navigation systems, charging stations, portable power devices, or any other device requiring electrical power.
  • the provision of such wiring allows for further useful devices to be connected to the battery, for example lights to enable the operator to see their path clearly in low light conditions and to ensure that the pram is visible to others.
  • the powered pram may include control means for the electric motor.
  • the control means may comprise a simple on/off switch to activate the motor, a throttle for the operator to select a particular speed, and/or a switch enabling a ‘power assist’ mode.
  • the control means may be operable to restrict the pram to a particular maximum speed and/or to prevent action of the motor in the absence of an operator (e.g. a dead man’s switch located on the powered pram).
  • the control means may include a level sensor to enable the pram to work selectively depending on the incline of the pram (for example, engaging the motor when travelling uphill and disengaging the motor when travelling downhill).
  • Figure 1A shows a view of an embodiment of a unitary motor and power module according to the first aspect of the present invention with the drive shafts retracted.
  • Figure 1B shows the same embodiment as Figure 1A, with the drive shafts extended.
  • Figure 2A shows a perspective view of the rear wheels of a pram configured to receive the unitary motor and power module displayed in Figs 1A and 1B.
  • Figure 2B shows a perspective view of the pram of Fig 2A with the unitary motor and power module of Figs 1A and 1B.
  • Figure 2C shows a perspective view of a the pram of Fig 2A with the unitary motor and power module of Figs 1A and 1B fitted between the rear wheels.
  • Figure 3 shows a perspective view of an embodiment of the unitary motor and power module according to the first aspect of the present invention and the rear wheels of a pram configured to receive said unitary motor and power module.
  • Figure 4 shows a perspective view of the unitary motor and power module fitted on a charging station.
  • Figure 5A shows a rear view of a powered pram, with a unitary motor and power module fitted and wiring (indicated as dashed lines) passed through the frame.
  • Figure 5B shows a plan view of the powered pram of Figure 5A, with the unitary motor and power module fitted and wiring (indicated as dashed lines) passed through the frame.
  • Figures 1A and 1B show one embodiment of the unitary motor and power module according to the first aspect of the present invention with the drive shafts in the retracted and extended positions respectively.
  • the housing 110 of the unitary motor and power module 100 contains the battery and motor (not shown) and is in the form of a cylinder with flared ends.
  • substantially any shape that would connect the wheels of the pram to which the module is to be fitted would be suitable, on the proviso that it does not interfere with the operation of the pram.
  • Typical shapes which may be employed for the housing 110 have a high aspect ratio, enabling bridging of the space between the wheels without risking contact with the group or the operator, such as cylinders, triangular prisms, cuboids, pentagonal prisms, hexagonal prisms and prisms of higher order polygons.
  • the cylindrical portion of the housing 110 may be textured to make it easy to grip. Alternative means may be used to improve grip, such as the addition of rubber material.
  • Each end 115 of the housing 110 includes a protuberance 120 which is shaped to fit into a complementary recess in the pram and will be described in more detail below.
  • the drive shafts are retracted within the ends 115 of the housing 110. This prevents the drive shafts from catching on the wheel and/or frame of the pram as it is fitted.
  • Fig. 1B the draft shafts 125 are in the extended position as they would be when fitted in a pram.
  • the exposed parts of the drive shafts 125 are frustoconical, making it easier for the drive shafts 125 to be fitted into the corresponding sockets on, or connected to, the wheels.
  • the drive shafts 125 are also splined to enhance their mechanical interaction with the sockets and the transfer of rotational force from the motor to the wheels by reducing the likelihood of slippage. It will be appreciated that the ability to extend or retract the ends of the drive shafts is optional.
  • the housing 110 of the embodiment shown in Figs. 1A and 1B includes the additional feature of a power (USB) socket 130 and a corresponding switch 135 for activating the socket.
  • a power (USB) socket 130 and a corresponding switch 135 for activating the socket.
  • USB power
  • Figure 2A shows the rear portion of a pram 200 configured to have the unitary motor and power module shown in Figs. 1A and 1B fitted between its rear wheels 210.
  • the sockets to which the driveshafts of the unitary motor and power module are to interlock with and the recesses into which the protuberances of the housing are to slot are covered by caps 215.
  • the caps 215 operate to prevent dirt entering or damage occurring to the sockets and/or recesses.
  • Figure 2B shows the unitary motor and power module 100 in the process of being fitted to the pram 200.
  • the caps have been removed from the rear wheels 210 revealing the recesses 220 into which the protuberances 120 of the housing are to slot.
  • the static part of the pram in which the recesses are formed are the brackets that hold the wheels.
  • the relationship between the recesses and protuberances may be reversed (i.e. the protuberances being on the static parts and the recesses being in the ends of the housing) or a complex interaction may be used.
  • the design of the recesses and protuberances beneficially allows the unitary motor and power module 100 to simply be slid into position from above, with gravity holding the module in position.
  • Figure 2C shows the unitary motor and power module 100 fitted between the rear wheels 210 of the pram 200.
  • the driveshafts are mechanically intermeshed with the sockets (not shown) allowing transferral of rotational force from the motor to the wheels and the engagement of the protuberances on the ends of the housing with the recesses in the static part of the pram ensures that it is the wheels that are rotated rather than the housing.
  • Figure 3 shows an embodiment of a unitary motor and power module 300 and the rear portion of a pram 310 configured to have the unitary motor and power module 300 fitted between its rear wheels 320.
  • the configuration of the recesses and protuberances has been reversed such that the recess 330 is in the end of the housing of the unitary motor and power module 300 and the protuberance 340 is located in the static portion of the pram (in this case, the bracket holding the wheel).
  • the drive shafts of the unitary motor and power module 300 are not shown in Figure 3.
  • FIG. 4 shows the unitary motor and power module 300 placed on a charging station 400 which passes mains electricity to the unitary motor and power module 300 in order to charge the battery held within.
  • the charging station includes a protuberance 410 configured to fit into recess 330 in one end of the unitary motor and power module 300.
  • the charging station 400 is in electrical contact with the battery within the unitary motor and power module 300, this electrical contact is established through contacts of conductive material 420 in the protuberance 410 and corresponding contacts on a portion of the driveshaft.
  • the contacts of the charging station may be located on a portion of the protuberance or top face of the charging station and the contacts of the unitary motor and power module 300 may be located on a portion of the recess of a portion of the end face of the housing.
  • the charging station charges the battery via induction.
  • inductive charging also known as wireless charging, it is possible to provide a sealed unit to prevent corrosion or damage to any exposed electrical contacts.
  • FIGs 5A and 5B show a pram 500 fitted with a unitary motor and power module 510 and additionally comprising wiring throughout the frame (represented as dashed lines).
  • the battery of the unitary motor and power module 510 is in direct electrical contact with the wiring, with the contact being provided in the same manner as for between the charging station and the unitary motor and power module in Figure 4.
  • the wiring is suitable to transmit electrical power from the battery to various points on the frame of the pram, such as the handle, the joints and the underslung basket.
  • the points to which electrical power is transmitted may be in the form of sockets, such as USB sockets, operable to receive cables for the connection of devices such as tablet computers, smartphones, GPS, speakers, and lights.
  • connections suitable for smartphones are beneficial on the handle of the pram, freeing the hands of the operator when using the smartphone (e.g. when using a GPS application or making a phonecall).
  • a lamp may be fitted on the front of the pram (e.g. on the front of the underslung basket) to provide illumination in low-light conditions and enhance visibility of the pram.
  • the wiring loom may be configured to provide power to any electronic device as required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Public Health (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Handcart (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

L'invention concerne un moteur unitaire et un module de puissance pour un landau comprenant : un boîtier qui contient un moteur électrique et une batterie reliée électriquement au moteur; et un arbre d'entraînement situé à des extrémités respectives du boîtier et configuré de telle sorte que, lorsque le boîtier est placé entre une paire de roues de landau le long d'un axe de rotation commun des roues, les arbres d'entraînement viennent en prise avec les roues respectives et peuvent fonctionner pour transmettre une force de rotation du moteur électrique aux roues.
PCT/GB2021/050024 2020-01-06 2021-01-06 Landau motorisé WO2021140320A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202180007286.4A CN114829228A (zh) 2020-01-06 2021-01-06 电动婴儿车

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2000122.8 2020-01-06
GB2000122.8A GB2590925B (en) 2020-01-06 2020-01-06 Power pram

Publications (1)

Publication Number Publication Date
WO2021140320A1 true WO2021140320A1 (fr) 2021-07-15

Family

ID=69527959

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2021/050024 WO2021140320A1 (fr) 2020-01-06 2021-01-06 Landau motorisé

Country Status (3)

Country Link
CN (1) CN114829228A (fr)
GB (1) GB2590925B (fr)
WO (1) WO2021140320A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023183942A3 (fr) * 2022-03-24 2023-11-23 Zero Friction, LLC Ensemble sac de golf motorisé

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8033348B1 (en) * 2008-04-07 2011-10-11 Hemin Parkhe Self-propelled child stroller
CN203902623U (zh) * 2014-06-23 2014-10-29 滨州学院 可变换休闲式婴儿车
GB2563573A (en) 2017-06-03 2018-12-26 Kvarda Jaroslav Motorised pram
US20190134474A1 (en) * 2017-05-31 2019-05-09 Eric Jordan Schneiter Detachable motor assembly for golf bag carrier

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3719247A (en) * 1971-04-07 1973-03-06 R Hollis Golf cart
FR2718363B1 (fr) * 1994-04-12 1996-06-28 Aubert Jean Pierre Dispositif mobile permettant la motorisation d'un chariot de golf manuel.
DE202006001818U1 (de) * 2006-02-01 2006-04-20 Kilic, Cuma Motorangetriebener Einkaufstrolley

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8033348B1 (en) * 2008-04-07 2011-10-11 Hemin Parkhe Self-propelled child stroller
CN203902623U (zh) * 2014-06-23 2014-10-29 滨州学院 可变换休闲式婴儿车
US20190134474A1 (en) * 2017-05-31 2019-05-09 Eric Jordan Schneiter Detachable motor assembly for golf bag carrier
GB2563573A (en) 2017-06-03 2018-12-26 Kvarda Jaroslav Motorised pram

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023183942A3 (fr) * 2022-03-24 2023-11-23 Zero Friction, LLC Ensemble sac de golf motorisé

Also Published As

Publication number Publication date
CN114829228A (zh) 2022-07-29
GB2590925B (en) 2023-11-01
GB2590925A (en) 2021-07-14
GB202000122D0 (en) 2020-02-19

Similar Documents

Publication Publication Date Title
US7185726B2 (en) Bicycle with optional power assist
CN204699363U (zh) 一种改良电动平衡车
CN104029769B (zh) 电动平衡扭扭车
EP2686229B1 (fr) Roue pour vélos à pédalage assisté
JP2018505097A (ja) 車両用の電気駆動ホイールハブシステム、及びそれを組み込んだ車両
WO2021140320A1 (fr) Landau motorisé
JP5695640B2 (ja) 歯車ケーシング及びパラメータ検知装置を備えた携帯型動力レンチ
CN201856212U (zh) 电手双动多功能扳手
CN105346650A (zh) 电动平衡车
US20160280300A1 (en) Combined device for power generation, power regulation, and removable power storage for a bicycle
CN204601572U (zh) 一种自动平衡电动滑板车
CN106092595A (zh) 一种车辆安全维护检测装置
CN207930673U (zh) 排爆机器人
CN103935238A (zh) 电动汽车和用于电动汽车的电驱动系统
JP6927799B2 (ja) 自転車用ドライブユニット
CN106329670A (zh) 电动汽车车顶充电智能系统
CN205554505U (zh) 一种自行车用电子变速系统装置
CN207242028U (zh) 一种无人机转动分析辅助支架
CN102784778B (zh) 一种全地形涵道式除尘机器人
CN211364612U (zh) 一种建筑设备用搬运装置
CN207859932U (zh) Agv驱动装置及agv小车
CN208102157U (zh) 全方位移动平台
CN207257486U (zh) 一体化监控排爆机器人航母底盘
CN217010600U (zh) 多功能离合器
CN207657870U (zh) 一种用于水产饲料加工用的推车

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21700326

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21700326

Country of ref document: EP

Kind code of ref document: A1