WO1990001441A1 - Systeme de roulement sur sols plats, escaliers et sols irreguliers - Google Patents

Systeme de roulement sur sols plats, escaliers et sols irreguliers Download PDF

Info

Publication number
WO1990001441A1
WO1990001441A1 PCT/JP1989/000814 JP8900814W WO9001441A1 WO 1990001441 A1 WO1990001441 A1 WO 1990001441A1 JP 8900814 W JP8900814 W JP 8900814W WO 9001441 A1 WO9001441 A1 WO 9001441A1
Authority
WO
WIPO (PCT)
Prior art keywords
wheel
main
stairs
arm
attached
Prior art date
Application number
PCT/JP1989/000814
Other languages
English (en)
Japanese (ja)
Inventor
Minoru Sato
Original Assignee
Kusakari, Tateki
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
Priority claimed from JP19814488A external-priority patent/JPH0248266A/ja
Priority claimed from JP9851089A external-priority patent/JPH02279461A/ja
Priority claimed from JP9850989A external-priority patent/JPH02279460A/ja
Application filed by Kusakari, Tateki filed Critical Kusakari, Tateki
Publication of WO1990001441A1 publication Critical patent/WO1990001441A1/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
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/02—Accessories or details specially adapted for hand carts providing for travelling up or down a flight of stairs

Definitions

  • the present invention relates to a storage device that can travel on flat ground, stairs, and uneven terrain. Background art
  • Japanese Patent Application Laid-Open No. 48-64651 discloses a device capable of moving up and down stairs instead of a conventional wheel device for traveling on flat ground having only a large-diameter main wheel.
  • JP-A-51-16302 and JP-A-52-27807 are known.
  • an arm is radially mounted around an axle at an equal angle radially, and wheels are rotatably mounted at the tip of the arm. It goes up and down the steps.
  • An object of the present invention is to provide a wheel device that can be configured to be compact and lightweight by adding products, and that can be smoothly operated not only for traveling on flat ground, but also for ascending and descending on stairs of various steps or on uneven terrain. Disclosure of the invention
  • a small-diameter sub-wheel is mounted on the front end of a front arm formed on a group wheel mounting body, a large-diameter main wheel or a small-diameter sub-wheel is mounted on a rear arm distal end, and the wheel mounting body is transported.
  • a wheel device characterized by being rotatably mounted on a connecting body mounted on a lower surface of a vehicle body.
  • the present invention also provides a small-diameter auxiliary wheel on a front arm formed on a wheel mounting body, a large-diameter main wheel on a rear arm, and a large-diameter main wheel rotatably mounted on the rear arm.
  • a wheel device characterized in that a long hole is formed in the long hole, and a slide shaft of a connecting body attached to the main body is slidably fitted into the long hole.
  • a small-diameter auxiliary wheel is rotatably mounted on a front arm formed on a wheel mounting body, and a large-diameter main wheel is rotatably mounted on a rear arm. Since the hole is formed and the slide shaft of the connecting body attached to the main body is slidably fitted in the long hole, the wheel mounting body is rotatable with respect to the connecting body, so that it is not only flat, but also stairs. This makes it possible to travel on uneven terrain with irregularities.
  • the present invention also provides a small-diameter sub-wheel at the tip of the arm formed on the wheel mounting body and a large-diameter main wheel at the tip of the rear arm.
  • an elongated hole is formed in the front-rear direction near the rear of the main wheel of the rear arm, and a slide shaft of a connecting body attached to the main body is slidably fitted in the elongated hole.
  • the present invention is characterized in that a small-diameter auxiliary wheel is formed at the front end of a front arm formed on a wheel mounting body, and a large-diameter main wheel is rotatably mounted at a front end of a rear arm.
  • a long hole is pitted in the front-rear direction close to the rear of the main wheel, and the slide shaft of the connecting body attached to the main body is slidably fitted into the long hole.
  • the rest is rotatable with respect to the connected body, and it is possible to run not only on flat ground, but also on stairs up and down and uneven terrain with irregularities.
  • the present invention provides a wheel device in which a large-diameter main wheel is rotatably connected to a coupling body attached to a lower surface of a main body, wherein a front arm and a rear arm are formed in an arch shape, and the two arms are respectively provided at the tip ends of both arms.
  • a wheel mounting body on which a small-diameter auxiliary wheel is rotatably pivoted is rotatably mounted on the connecting body in front of the main wheel, and is always attached to the mounting portion so that the front arm approaches the main body side.
  • a wheel device characterized by attaching a biasing biasing means.
  • the present invention relates to a wheel device in which a large-diameter main wheel is rotatably mounted on a connecting body attached to a lower surface of a main body, a front arm and a rear arm are formed in an arch shape, and small diameters are provided at both ends of the arms.
  • a wheel mounting body rotatably pivoted with the auxiliary wheel is rotatably mounted on the connecting body in front of the main wheel, and the front arm is constantly urged to the mounting portion so that the front arm approaches the main body lavage. Since the biasing means is mounted, the wheel mounting body can rotate with respect to the connecting body, and can travel not only on flat ground, but also on stairs, up and down stairs, and uneven terrain with irregularities.
  • Fig. 1 is a view of a lavatory when stored in the first embodiment of the present invention
  • Fig. 2 is a side view of the same when traveling on level ground
  • FIG. 10 is a vertical cross-sectional view of the second embodiment of the present invention at the time of storage
  • FIG. 11 is a rear view partially cut away as viewed from the direction shown by the arrow in FIG. 10
  • FIGS. Fig. 9 shows a measurement plan of the operation over time when going up and down the stairs.
  • FIG. 20 is a vertical cross-sectional view of the third embodiment of the present invention at the time of storage
  • FIG. 21 is a plan view also seen from the bottom
  • FIGS. FIG. 3 shows a schematic view of a lavatory in an operating state over time.
  • FIG. 27 is a longitudinal sectional side view of the fourth embodiment of the present invention
  • FIG. 28 is a schematic lavatory view of the same operating state when the stairs are ascending.
  • the wheel device of the present invention is mounted on a hand car for carrying luggage, and the pair of wheel devices are independently operated on the left and right lavages of the hand car body. In this case, only one wheel device is shown in the drawing.
  • Reference numeral 1 denotes a main body having the best hand force.
  • a connecting body 2 is provided at a rear portion of a lower surface of the main body 1 and a buffering regulating body 3 is provided in front of the connecting body 2.
  • a plate-shaped wheel mounting rest which is V-shaped forward from the base end 5
  • An arm 6 and a rear arm 7 are formed so as to protrude.
  • a small-diameter auxiliary wheel 8 is rotatably mounted on the front arm 6, and a large-diameter main wheel 9 is mounted on the rear arm 7. It is rotatably mounted on the shaft.
  • a long hole 10 is provided at the base end 5 in the front-rear direction, and a slide shaft 11 fixed to the end of the connecting body 2 is fitted into the hole 10 to attach a ⁇ ring to the main body 1.
  • the body 4 is mounted so as to be freely slidable and rotatable in the front-rear direction.
  • Reference numeral 12 denotes a coil spring, which is stretched between the wheel mounting body 4 and the main body 1 so that the front arm 6 comes into contact with the holding shaft 13 fixed to the regulating body 3. 4, which is biased
  • the slide shaft 11 when traveling on level ground, when the main body 1 is raised in the direction a from the state shown in Fig. 1, the slide shaft 11 is loaded with the load of the main body 1 as shown in Fig. 2, and the rear end 10 a), the front arm pivots around the slide shaft 11 so that it contacts the presser shaft 13, the auxiliary wheel 8 rises, and only the main wheel 9 contacts the flat ground A.
  • the main wheels 9 are rotated by hand pushing operation of the main body 1 in the front-rear direction, and the main wheels 1 run smoothly on the flat ground A freely left and right.
  • the secondary wheel 8 rotates on the top surface D of the stairs and the main wheel 9 further rises on the measurement surface C of the stairs, as shown in Fig. 7 due to the lifting of the main body 1.
  • the spring 12 expands against the tension as shown in Fig. 8. , the extension of the spring 1 2 becomes maximum, the repulsive force becomes strongest ⁇
  • the wheel device of the present invention is mounted on a hand car for carrying luggage, but the present invention is not limited to this.
  • a single unit may be provided at the center, or a plurality of rows may be provided in the left and right direction of the main holiday.
  • FIGS. 10 to 19 show that the wheel device of the present invention is mounted on a hand car for carrying luggage, and that a pair of the wheel devices is mounted on the left and right sides of the hand car main rest so that they can operate independently.
  • Reference numeral 1 denotes a main body of a hand car, and a connecting body 2 formed of a substantially triangular plate is connected to both lavages at the rear of the lower surface of the main body 1, and an elastic buffering rest having elasticity is provided on the lower surface of the main body in the connecting body 2. 3 is installed.
  • Reference numeral 4 denotes a wheel mounting body.
  • a front arm 6 and a rear arm 7 are formed in a V-shape at both ends of a base end portion 5 composed of a horizontal member, and are formed in a V-shape.
  • a small-diameter auxiliary wheel 8 is rotatably mounted on the shaft, and a large-diameter main wheel 9 is rotatably mounted on the tip of the rear arm 7.
  • a long hole 10 is formed in the rear arm 7 in the front-rear direction (vertical direction in FIG. 10) so as to be close to the rear of the main wheel 9, and is fixed to the tip of the connecting body 2.
  • the slide shaft 11 is fitted, and the wheel grip 4 is attached to the main body 1 so as to be freely slidable and rotatable in the front-rear direction.
  • Reference numeral 12 denotes a coil spring, which is stretched between the wheel mounting body 4 and the main body, whereby the base end portion 5 is urged so as to abut on the buffer regulating body 3.
  • the main body 1 when not in use, the main body 1 can be set up with the dashed line XX as the ground surface as shown in Fig. 10. At this time, the wheel mounting arm 4 is pulled forward by the tension of the spring 12 and the slide shaft 11 comes into contact with the rear end of the elongated hole 10 and the wheel mounting body is centered on the slide shaft 11. The base end 5 of 4 is held and housed in a state of contact with the buffer regulating body 3.
  • the main wheel 9 rises from the flat ground A under the stairs and rises to the stair rising surface C.
  • the wheel mounting rest 4 rotates in the counterclockwise direction (arrow d) around the slide shaft 11 as it rises while rotating along this while abutting.
  • the auxiliary wheel 8 rotates on the stair tread surface D and the main wheel 9 is further raised by the lifting operation of the main body 1, as shown in Fig. 16.
  • the wheel mounting rest 4 In order to ascend the step rise surface C, the wheel mounting rest 4 further rotates in the counterclockwise direction d, whereby the spring 12 expands against the tension.
  • the wheel device of the present invention is mounted on a hand car for carrying cargo, but the present invention is not limited to this.
  • Multiple rows may be installed at one location or in the horizontal direction of the main unit.
  • FIGS. 20 to 26 show the wheel device of the present invention mounted on a hand car for carrying luggage, and a pair of ⁇ wheel devices equipped on the left and right sides of the hand car body so that they can operate independently. This is the third embodiment.
  • Reference numeral 1 denotes a main body of a hand car, and connecting bodies 2 and 2 are attached to both sides of a rear surface of a lower surface of the main body 1.
  • the connecting body 2 is formed of a ⁇ -shaped plate, and has a rear end curved in a semicircular shape to have a substantially U-shape having a folding buffering property, thereby forming a folded portion 2a below.
  • the main shaft 23 is stretched over the central portion of the folded portions 2a, 2a of the two connected bodies 2, 2, and fixedly attached thereto. It is pivotally connected to the rotation itself.
  • the present invention includes the following structures in addition to the above structures.
  • Numeral 34 denotes wheels, which are fixed so as to bridge the ends of the folded portions 2a, 2a of the two connected bodies 2, 2.
  • Reference numeral 35 denotes a wheel mounting body, which is disposed in front of both sides of the main shaft 23, respectively.
  • Each wheel mounting rest 35 is composed of opposed mounting plates 36, 36.
  • the mounting plate 36 forms a front arm 37 and a rear arm 38 in an arch shape, and forms a front arm 37.
  • the shaft 39 on which the small diameter sub wheels 18 are rotatably connected is fixedly attached, and the shaft 40 on which the small diameter rear sub wheel 19 is rotatably connected is also fixed to the rear arm 38.
  • Reference numeral 14 denotes a long hole, which is bored at the rear end of the base of the arms 37, 38 of the mounting plate 36, and is rotatably and slidably fitted to the axle 34, so that a wheel mounting rest is provided.
  • 3 5 -i 2-attached, 15 is a coil spring, which is inserted into the axle 34, one end 15b of which is fixed to the folded part 2a of the connecting body 2, and the other end 15a is attached to the wheel
  • the mounting plate 36 of the body 35 is slidably engaged with the protruding engaging portion 16, and the wheel mounting body 35 is provided with the hole 14 as a fulcrum, and the torsion elastic force of the coil spring 15 is applied.
  • the front arm 37 is constantly biased in the direction approaching the main body 1.
  • Reference numeral 17 denotes a regulation element for gentle streets, which prevents the wheel gripping body 35 from directly colliding with the main body 1.
  • the main unit 1 when not in use, the main unit 1 can be set up with the dashed line XX as the ground surface as shown in Fig. 20. At this time, the wheel mounting body 35 is longer due to its own weight. The axle 34 moves downward so that the axle 34 abuts on the front end 14a of L14.
  • the front arm 37 is lifted up by the tension of 15 so as to come into contact with the buffering regulator 17.
  • the main body 1 when traveling on level ground, if the main body 1 is raised in the direction a in FIG. 20, the rear end of the main body 1 is separated from the flat ground A, and only the main shaft 24 is grounded, so that the main body 1 can run smoothly.
  • FIG. 22 the state when ascending the stairs will be described with reference to FIGS. 22 to 26.
  • the wheel mounting body 35 When the main body 1 is subsequently lifted, the wheel mounting body 35 further pivots counterclockwise as shown in FIG. 23, and the front sub-wheel 18 rotates on the tread tread D and the rear part.
  • the secondary wheel 19 rises while rotating along the stair climbing surface C.
  • the main shaft 24 rises from the flat ground A below the stairs.
  • a wheel device 20 shown in FIG. 27 and FIG. 28 is a fourth embodiment of the present invention.
  • the mounting body 26 is rotatably pivoted by the axle 25. In this case, instead of the hole 14 as in the third embodiment, it is pivotally connected so as not to slide.
  • a small diameter front sub-wheel 29 and rear sub-wheel 30 are rotatably mounted on the front arm 27 and the rear arm 28 of the wheel mounting body 26, respectively, and are further attached to the joint body 22.
  • One end of the torsion spring 32 is locked to the locking bracket 31, and the center of the torsion spring 32 is passed through the upper lavage of the axle 25 and the other end is locked to the lower part of the main shaft 23.
  • the front arm 27 of the wheel mounting body 26 is constantly urged in a direction approaching the main rest 21 so as to come into contact with the buffering regulator 33, as shown in FIG. 27.
  • the vehicle can travel on level ground as in the third embodiment, and when climbing the stairs B, similarly to the operation state of the third embodiment shown in FIGS. 22 to 26.
  • the wheel mounting 26 pivots about the axle 25, and the pivoting is performed against the tension of the torsion spring 32 as shown in FIG. be able to.
  • the present invention is not limited to the configuration of the above embodiment, and may have the following configuration. (a) It is not limited to hand trucks for carrying luggage, but may be equipped on heavy trucks.
  • the wheel device may be a plurality of rows parallel in the horizontal direction of one location or body in the center instead of mounted on both left and right ⁇ law body ⁇
  • the wheel mounting body was mounted by a rotating means with an axle fitted in the long hole, in the case of a comparatively comparative car, by adjusting the tension of the coil spring, it was not necessary to make the long hole.
  • the wheels may be pivoted so as to rotate without sliding.
  • the coil spring is not limited to the torsion winding type, but may be a torsion rewinding type or an elastic body such as a tension panel, a compression panel, or rubber, or a weight rest may be attached. In short, it is sufficient if the front arm of the wheel mount is flipped up smoothly.
  • the present invention has a structure in which the auxiliary wheel and the main wheel are rotatably mounted on the front and rear arms of the wheel mounting body, respectively, and the main body side is inserted into the long hole provided in the base.
  • the slide shaft moves back and forth in the elongated hole in response to changes in the unevenness of the road surface, the wheel mount rotates, and the load on the main Alternatively, it is automatically converted to cover the main wheel and sub wheel, and on flat ground, the sub wheel floats up, and only the main wheel is in contact with the ground, and runs while rotating.In addition, when climbing up and down stairs and uneven terrain, it runs on steps.
  • both the main wheel and the auxiliary wheel touch the ground and rotate, Even a weak person, such as an elderly person, can operate it smoothly and can run the machine smoothly.
  • the main wheel is supplemented with a small-diameter auxiliary wheel, which makes it lightweight and compact, and has excellent effects such as extremely convenient handling during storage and running operation. Things.
  • the auxiliary wheel and the main wheel are rotatably mounted on the front and rear arms of the wheel mounting body, respectively, and the elongated holes formed in the rear of the main wheel are provided. Since the slide shaft on the main unit side is fitted, the slide shaft moves back and forth in the long hole according to the change in the unevenness of the road surface, the wheel mount rotates, and the load on the main unit is reduced. Or, it is automatically converted to cover the secondary wheel or the main wheel and the secondary wheel.
  • the secondary wheel floats up, and only the main wheel is in contact with the ground, and turns, and stairs, uneven terrain
  • the main wheels and the sub wheels contact the ground and rotate according to the change in travel at the step, and fits into the long holes that are the fulcrum of operation conversion between the main wheels and the sub wheels.
  • the slide shaft is located close to the rear of the main wheel, the position of the center of gravity is lowered, Of the operating force is transmitted to the main wheel in without waste smoothly, wobble without it is possible to operate reliably, women and children, can be a force of ⁇ rather than operation also weak persons such as the elderly.
  • the auxiliary wheel is attached to the main wheel with a small-diameter auxiliary wheel, it has an excellent effect such as compactness due to the height of the stirrer and extremely convenient handling during storage and running operation. .
  • the present invention relates to a wheel device in which a main wheel is pivotally connected to a main body via a connecting body, and a wheel mounting in which auxiliary wheels are pivotally connected to front and rear arms, respectively.
  • Allows the body to rotate during a connection break It is equipped with a biasing means that biases the mounting and wheel mounting body toward the main body side, so on flat terrain, it travels freely with the main wheels as with the conventional wheel device, and when climbing up and down stairs or uneven terrain,
  • both the secondary wheels are automatically brought into contact with and separated from the stepped part in conjunction with the rotation of the main wheels, the group wheel mounting rest, and the operation of the biasing means, as well as the operation of the main wheels. And it can go up and down smoothly.
  • women, women, the elderly, and other weak people can operate comfortably without difficulty.
  • the wheel device of the present invention can be manufactured by a simple operation of attaching the wheel mounting body and the urging means without largely modifying the existing structure such as a conventional hand car for traveling on flat ground. It has excellent usability, and has the effect of providing an easy-to-manufacture and inexpensive wheel device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)

Abstract

Un système de roulement pour charrettes à bras permet de déplacer celles-ci même sur des escaliers, des sols irréguliers et plats. Une roue auxiliaire (8) est rotativement montée à l'extrémité libre d'un bras antérieur (6) d'un organe (4) de montage de la roue et une roue principale (9) est montée sur l'extrémité libre d'un bras postérieur (7) du même organe de montage (4). Un axe coulissant (11) assujetti à un organe de liaison (2) sur le côté du corps (1) d'une charrette à bras coulisse dans un alésage allongé (10) ménagé dans l'organe (4) de montage de la roue, de façon à fixer celui-ci sur le corps (1) de la charrette.
PCT/JP1989/000814 1988-08-09 1989-08-09 Systeme de roulement sur sols plats, escaliers et sols irreguliers WO1990001441A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP19814488A JPH0248266A (ja) 1988-08-09 1988-08-09 平地ならびに階段および不整地用の車輪装置
JP63/198144 1988-08-09
JP9851089A JPH02279461A (ja) 1989-04-18 1989-04-18 平地ならびに階段および不整地用の車輪装置
JP9850989A JPH02279460A (ja) 1989-04-18 1989-04-18 平地ならびに階段および不整地用の車輪装置
JP1/98509 1989-04-18
JP1/98510 1989-04-18

Publications (1)

Publication Number Publication Date
WO1990001441A1 true WO1990001441A1 (fr) 1990-02-22

Family

ID=27308697

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1989/000814 WO1990001441A1 (fr) 1988-08-09 1989-08-09 Systeme de roulement sur sols plats, escaliers et sols irreguliers

Country Status (1)

Country Link
WO (1) WO1990001441A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2690668A1 (fr) * 1992-04-29 1993-11-05 Delta Diffusion Sa Chariot distributeur, notamment de magazines, journaux, prospectus.
FR2709094A1 (fr) * 1993-08-18 1995-02-24 Rebours Jean Francois Roue déformable.
US5883068A (en) * 1994-10-04 1999-03-16 Henkel Kommanditgesellschaft Auf Aktien Pumpable water-containing surfactant concentrates
WO2006102781A3 (fr) * 2005-03-31 2006-12-07 Degonda Rehab Sa Unite a roue pivotante et chaise roulante comprenant une unite a roue pivotante
US8539640B1 (en) 2012-06-08 2013-09-24 Herbert A. Waggener Caster wheel lift and brake assembly
WO2014005192A1 (fr) * 2012-07-04 2014-01-09 Easton Samuel Systèmes et procédés de roue
US8650710B1 (en) 2012-12-15 2014-02-18 Herbert A. Waggener Caster wheel lift and brake assembly
JP2016052367A (ja) * 2014-09-02 2016-04-14 豊田鉄工株式会社 車椅子
CN108068950A (zh) * 2016-11-10 2018-05-25 福特全球技术公司 第一/最后一英里运输中的或有关的改进
US10464373B1 (en) 2017-06-26 2019-11-05 Herbert A Waggener Caster wheel lift and brake assembly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4923950U (fr) * 1972-06-02 1974-02-28
JPS50107652A (fr) * 1974-02-01 1975-08-25

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4923950U (fr) * 1972-06-02 1974-02-28
JPS50107652A (fr) * 1974-02-01 1975-08-25

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2690668A1 (fr) * 1992-04-29 1993-11-05 Delta Diffusion Sa Chariot distributeur, notamment de magazines, journaux, prospectus.
FR2709094A1 (fr) * 1993-08-18 1995-02-24 Rebours Jean Francois Roue déformable.
US5883068A (en) * 1994-10-04 1999-03-16 Henkel Kommanditgesellschaft Auf Aktien Pumpable water-containing surfactant concentrates
WO2006102781A3 (fr) * 2005-03-31 2006-12-07 Degonda Rehab Sa Unite a roue pivotante et chaise roulante comprenant une unite a roue pivotante
CH698063B1 (de) * 2005-03-31 2009-05-15 Degonda Rehab Sa Lenkradeinheit und Rollstuhl mit mindestens einer Lenkradeinheit.
US8539640B1 (en) 2012-06-08 2013-09-24 Herbert A. Waggener Caster wheel lift and brake assembly
WO2014005192A1 (fr) * 2012-07-04 2014-01-09 Easton Samuel Systèmes et procédés de roue
US8650710B1 (en) 2012-12-15 2014-02-18 Herbert A. Waggener Caster wheel lift and brake assembly
JP2016052367A (ja) * 2014-09-02 2016-04-14 豊田鉄工株式会社 車椅子
CN108068950A (zh) * 2016-11-10 2018-05-25 福特全球技术公司 第一/最后一英里运输中的或有关的改进
US10464373B1 (en) 2017-06-26 2019-11-05 Herbert A Waggener Caster wheel lift and brake assembly

Similar Documents

Publication Publication Date Title
KR102435716B1 (ko) 후륜 견인 타입 링크 부재를 이용한 전동 킥보드
WO1990001441A1 (fr) Systeme de roulement sur sols plats, escaliers et sols irreguliers
KR101010833B1 (ko) 접이식 자전거 및 이를 이용한 자전거 접이방법
JPH0438607B2 (fr)
US7850189B2 (en) Curb climbing wheelchair attachment
JP2002178930A (ja) 階段走行可能な運搬車
JP3766800B2 (ja) 車両用折り畳み式階段
JP6843354B2 (ja) 階段昇降装置
JP3418924B2 (ja) 階段荷物運搬車
JPH02279461A (ja) 平地ならびに階段および不整地用の車輪装置
JPH1189899A (ja) 歩行補助車
GB2237250A (en) A kerb climbing device which minimises vertical acceleration
JPH0248266A (ja) 平地ならびに階段および不整地用の車輪装置
JP2001180499A (ja) ハンドカート
JPH02279460A (ja) 平地ならびに階段および不整地用の車輪装置
JP3005888B2 (ja) エスカレータ用ショッピングカート
JP3874740B2 (ja) 車輪付き歩行杖
JP3172850B2 (ja) 段差昇降機
JPH0314670B2 (fr)
KR200353320Y1 (ko) 탑승용 발판장치를 갖춘 보행식 이송장치
CN111297013B (zh) 移动机构、移动载具与行李箱
CN213441917U (zh) 用于箱包轮的防滑装置
JPH028951Y2 (fr)
EP0786396A1 (fr) Un transporteur de secours pour un malade
JP2002035039A (ja) 車椅子における前車輪用補助具

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): KR US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LU NL SE