WO2013100503A1 - 이동구조물의 휠 베이스 - Google Patents
이동구조물의 휠 베이스 Download PDFInfo
- Publication number
- WO2013100503A1 WO2013100503A1 PCT/KR2012/011315 KR2012011315W WO2013100503A1 WO 2013100503 A1 WO2013100503 A1 WO 2013100503A1 KR 2012011315 W KR2012011315 W KR 2012011315W WO 2013100503 A1 WO2013100503 A1 WO 2013100503A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- frame portion
- frame
- slider
- unit
- wheel
- 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.)
- Ceased
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/14—Understructures, i.e. chassis frame on which a vehicle body may be mounted of adjustable length or width
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- 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
- A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
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- 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
- A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
- A61G5/0808—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction
- A61G5/0833—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding front to back, e.g. reducing or expanding the overall depth of the wheelchair
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- 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
- A61G5/041—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven having a specific drive-type
- A61G5/042—Front wheel drive
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- 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
- A61G5/10—Parts, details or accessories
Definitions
- the present invention relates to a wheel base of a mobile structure, and more particularly, to a wheel base of a mobile structure that can be adjusted in length depending on the situation.
- the wheelchair is a single vehicle, and the residential area is a medical aid device that helps the physically disabled, the patient, and the elderly who are inconvenient to move easily.
- Such wheelchairs are classified into manual wheelchairs for driving wheels by manpower and electric wheelchairs for driving wheels by using an electric apparatus.
- Such wheelchairs are provided with driving wheels on both sides of the frame constituting the wheelchair, and the front wheels are installed on both front sides of the frame, or the rear wheels are installed on both rear sides of the frame to facilitate movement.
- the general wheelchair has a narrow gap between the wheels located in the front and rear direction.
- the wheelchair can freely rotate or turn in a narrow space. That is, it is designed to move indoors.
- the distance between the wheels located in the front and rear direction is narrow, it is not stable when the wheelchair moves at an increased speed outdoors.
- the wheelchair has been disclosed as an example, since the wheel base of the mobile structure of the wheelchair-like type is fixed, there is a problem that the mobile structure is somewhat restricted in being used in a state suitable for the use environment.
- the present invention is to provide a wheel base of the movable structure that can easily adjust the distance between the wheels located in the front and rear direction.
- the present invention is to provide a wheel base of the mobile structure to implement the movement of the mobile structure stably indoors and outdoors.
- a wheel base positioned between a front wheel and a rear wheel of a moving structure and connecting the front wheel and the rear wheel, the wheel base comprising: a first frame part connected to any one of the front wheel and the rear wheel; A second frame part connected to the other of the front wheel and the rear wheel and positioned below or above the first frame part and coupled to the first frame part (between the first frame part and the second frame part) A receiving space is formed); A slider part located in the accommodation space and coupled to one of the first frame part and the second frame part; A driving unit positioned at one end surface of the other of the first frame unit and the second frame unit to generate a driving force; And a driving transmission unit connecting the driving unit to the slider unit and transmitting the driving force to the slider unit, wherein the driving unit is arranged along a longitudinal direction of the other of the first frame unit and the second frame unit.
- a wheel base characterized in that for adjusting the distance between the front wheel and the rear wheel by moving.
- the drive transmission part may have a bar shape, disposed along another one of the first frame part and the second frame part, penetrating the slider part, and screwed to the slider part. And rotates the slider to move the slider along the drive transmission on the drive transmission.
- the drive unit a transmission unit for generating a rotational force
- a wheel base comprising a reduction unit for connecting one end of the transmission unit and the drive transmission unit, and transmits the rotational force of the transmission unit to the drive transmission unit.
- the wheel base further includes a bearing part inserted between the slider part and the drive transmission part and fixed to the slider part (the bearing part includes a plurality of balls arranged along a screw bone of the drive transmission part).
- the bearing part includes a plurality of balls arranged along a screw bone of the drive transmission part.
- any one of the first frame portion and the second frame portion includes rail grooves recessed along the longitudinal direction, respectively, on both sides of any one of the first frame portion and the second frame portion, The other one of the first frame portion and the second frame portion further protrudes from the inner surfaces of the other one of the first frame portion and the second frame portion to be inserted into the rail grooves.
- a wheel base comprising a.
- a wheel base comprising a.
- the wheel base may further include switch units positioned at both ends of the accommodation space with the slider portion interposed therebetween, wherein the driving unit is stopped when the switch unit contacts the switch unit. Start the wheel base.
- At least one of the first frame portion and the second frame portion surrounds a portion of a wheel pipe connected to the front wheel or the rear wheel, and at least one of the first frame portion and the second frame portion.
- Pipe fixing portion for fixing the wheel pipe to the;
- a cushioning portion made of an elastic material and positioned between the pipe fixing portion and the wheel pipe.
- one of the first frame portion and the second frame portion discloses a wheel base, characterized in that further extending to face the drive unit.
- the wheel base of the movable structure according to the present invention has the following effects.
- the wheel base of the movable structure according to the present invention includes a first frame portion, a second frame portion, a slider portion, a drive transmission portion and a drive portion.
- the slider portion is located between the combined first frame portion and the second frame portion and is coupled to any one of them, and is connected to the driving portion through the drive transmission portion.
- the driving unit moves along one of the first frame unit and the second frame unit, and the position of the first frame unit relative to the second frame unit is changed. For this reason, the length of the wheel base which consists of the combination of a 1st frame part and a 2nd frame part is changed. Therefore, the heel base of the movable structure according to the present invention has an effect of easily adjusting the distance between the wheels located in the front and rear direction by the length of the wheel base.
- the wheel base of the mobile structure according to the present invention can easily adjust the length, regardless of whether the mobile structure is used indoors or outdoors, by adjusting the length of the wheel base according to the situation, the stable structure of the mobile structure Has the effect of providing movement.
- FIG. 1 is a perspective view separately showing the wheel base of the moving structure according to a preferred embodiment of the present invention.
- FIG. 2 is a longitudinal sectional view showing a state in which the wheel base illustrated in FIG. 1 is coupled.
- FIG. 3 is a cross-sectional view illustrating a state in which the wheel base illustrated in FIG. 1 is coupled.
- FIG. 4 is a perspective view illustrating a state in which the wheel base illustrated in FIG. 1 is applied to a moving structure.
- FIG. 5 is a perspective view illustrating a state in which the wheel base is extended in the movable structure shown in FIG. 4.
- FIG. 1 is a perspective view showing the wheel base 100 separated from the moving structure according to a preferred embodiment of the present invention
- Figure 2 is a longitudinal cross-sectional view showing a state in which the wheel base 100 shown in FIG. 3 is a cross-sectional view illustrating a state in which the wheel base 100 illustrated in FIG. 1 is coupled
- FIG. 4 is a perspective view illustrating a state in which the wheel base 100 illustrated in FIG. 1 is applied to the moving structure 1.
- 5 is a perspective view illustrating a state in which the wheel base 100 is extended from the movable structure 1 shown in FIG. 4.
- the wheel base 100 includes a first frame portion 101, a second frame portion 102, a slider portion 103, and a drive transmission portion. And a drive section 105, which is located between the front wheel 10 and the rear wheel 20 in the moving structure 1 and is used to connect them.
- the moving structure 1 shows an example made of a wheelchair, but is not limited thereto and may be applied to various types of moving structures.
- the rear wheel 20 is moved with respect to the front wheel 10 while the front wheel 10 is fixed, but it may be applied to the opposite.
- the first frame portion 101 is connected to the front wheel 10.
- Rail grooves 111 are recessed in the longitudinal direction of the first frame portion 101 on both side surfaces of the first frame portion 101.
- the first frame portion 101 is positioned below the second frame portion 102, and the first frame portion 101 is inserted into the bottom surface of the second frame portion 102. And the first frame portion 101 are combined.
- an accommodation space 110 is formed between the first frame portion 101 and the second frame portion 102.
- the rail protrusion 121 protrudes along the longitudinal direction of the second frame portion 102 on the inner surface of the second frame portion 102.
- the rail protrusion 121 corresponds to the rail groove 111 and is inserted into the rail groove 111.
- the second frame portion 102 is coupled to the first frame portion 101 and is movable along the first frame portion 101.
- the rail groove 111 serves as a guide.
- the second frame portion 102 is connected to the rear wheel 20.
- the rail groove 111 and the rail protrusion 121 may be formed and applied to the first frame portion 101 and the second frame portion 102 in various combinations.
- rail protrusions may be formed on both side surfaces of the first frame part 101, and rail grooves may be formed on the inner side surface of the second frame part 102.
- the case in which the second frame portion 102 is coupled to be inserted into the upper surface of the first frame portion 101 may be applied.
- the slider 103 is coupled to the second frame portion 102 and inserted into the accommodation space 110, and is located between the coupled first frame portion 101 and the second frame portion 102. In addition, the slider 103 moves together with the second frame 102 in the same direction.
- the drive transmission part 104 has a bar shape, and is screwed with the slider part 103 through the slider part 103. At this time, the drive transmission unit 104 is arranged along the longitudinal direction of the first frame unit 101, and rotates about an axis along the direction in which the drive transmission unit 104 is arranged. For this reason, the slider part 103 moves along the drive transmission part 104 on the drive transmission part 104, and the moving direction of the slider part 103 is determined according to the rotation direction of the drive transmission part 104.
- the driving unit 105 is located at one type end face of the first frame part 101, and is coupled to the one type end face of the driving transmission part 104. As the drive unit 105 operates, the drive transmission unit 104 rotates, and the rotation direction of the drive transmission unit 104 is selected by the drive unit 105.
- the driving unit 105 includes a transmission unit 151 and a reduction unit 153.
- the transmission unit 151 generates a rotational force, and generally consists of a motor or the like.
- the reduction unit 153 connects one end of the transmission unit 151 and the drive transmission unit 104.
- the reduction unit 153 receives the rotational force of the transmission unit 151 and transmits the rotational force according to the set reduction ratio to the drive transmission unit 104.
- the driving unit 105 may be selectively operated through manipulation of a button or the like of the moving structure 1.
- the slider portion 103 is preferably positioned adjacent to the driving portion 105 on the driving transmission portion 104.
- the drive part 105 rotates the drive transmission part 104 in one direction, and moves the slider part 103 so that it may move away from the drive part 105 on the drive transmission part 104.
- FIG. At this time, the inside of the first frame unit 101 may be exposed.
- the driving portion 105 rotates the driving transmission portion 104 in the reverse direction, so that the slider portion 103 is driven on the driving transmission portion 104. Go to 105).
- the first frame portion 101 and the second frame portion 102 overlap again. Due to the above operation, the length of the first frame portion 101 and the second frame portion 102 is combined so that the entire length of the wheel base 100 can be adjusted as necessary. That is, the distance between the front wheel 10 and the rear wheel 20 is adjusted.
- the driving unit 105 in the present embodiment has been disclosed an example of linearly moving the slider unit 103 by rotating the drive transmission unit 104 screwed with the slider unit 103, but is not limited thereto.
- the drive unit 105 may have a cylindrical shape, and the drive transmission unit 104 may be linearly moved to allow the slider 103 to be linearly moved.
- the wheel base 100 as described above is applied to the moving structure (1) to shorten the length in the room to facilitate the rotation and direction even in a narrow space, and to increase the length in the outdoor to drive the moving structure (1) Can provide stability.
- the second frame part 102 may be further extended to face the driving part 105 so as not to expose the inside of the first frame part 101.
- the interior of the first frame portion 101 and the second frame portion 102 can be kept closed and protected from the external environment.
- the slider 103 and the drive transmission 104 can be prevented from being damaged by the external environment.
- first frame portion 101 is positioned below the second frame portion 102 and inserted into the second frame portion 102.
- slider unit 103 is coupled to the second frame unit 102 is disclosed.
- the present invention is not limited thereto, and the first frame part 101 may be positioned above the second frame part 102, and the second frame part 102 may be inserted into the first frame part 101. .
- the first frame portion 101 may be coupled to the slider portion 103 to move together with the slider portion 103.
- the wheel base 100 further includes a switch unit 106 and a bearing unit 107.
- the switch units 106 are located at both ends of the accommodation space 110.
- the slider portion 103 is located between the switch portions 106 on the drive transmission portion 104 and moves between the switch portions 106 along the drive transmission portion 104.
- the driving unit 105 is stopped, so that the rotation of the driving transmission unit 104 by the driving unit 105 is stopped.
- the slider 103 is not continuously moved in the moving direction.
- excessive movement of the slider portion 103 can be prevented.
- the bearing portion 107 is inserted between the slider portion 103 and the drive transmission portion 104 and fixed to the slider portion 103.
- the bearing portion 107 includes a plurality of balls 171, the balls 171 are arranged along the screw bone of the drive transmission (104). At this time, the balls 171 are in contact with each other by being inserted into the screw bone of the drive transmission unit 104. For this reason, the drive transmission part 104 rotates by the bearing part 107 in the state which the friction by the contact with the slider part 103 is reduced, and wear is reduced while rotating smoothly.
- the front wheel 10 and the rear wheel 20 are connected to the wheel base 100.
- the rear wheels 20 are connected to each other by the wheel pipe 30, the wheel pipe 30 is located on the upper surface of the second frame portion 102 and fixed.
- the second frame part 102 further includes a pipe fixing part 123 and a buffer part 125.
- the pipe fixing part 123 fixes the wheel pipe 30 to the upper surface of the second frame part 102 while wrapping a portion of the wheel pipe 30.
- the shock absorbing portion 125 is made of an elastic material and is located between the pipe fixing portion 123 and the wheel pipe 30. The friction between the wheel pipe 30 and the pipe fixing part 123 in the process of moving the first frame portion 102 to prevent noise or wear.
- the pipe fixing part 123 and the buffer part 125 may be applied to the first frame part 101 instead of only the second frame part 102.
- the rear wheel 20 may be connected to the first frame portion 101
- the front wheel 10 may be connected to the second frame portion 102.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Handcart (AREA)
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- Invalid Beds And Related Equipment (AREA)
Description
Claims (9)
- 이동구조물의 전측 휠과 후측 휠 사이에 위치되어 상기 전측 휠과 후측 휠을 연결하는 휠 베이스에 있어서,상기 전측 휠 및 상기 후측 휠 중 어느 하나에 연결되는 제 1 프레임부;상기 전측 휠 및 상기 후측 휠 중 다른 하나에 연결되고, 상기 제 1 프레임부의 하측 또는 상측에 위치되어 상기 제 1 프레임부와 결합되는 제 2 프레임부(상기 제 1 프레임부와 상기 제 2 프레임부 사이에는 수용 공간이 형성된다);상기 수용 공간 내에 위치되고, 상기 제 1 프레임부 및 상기 제 2 프레임부 중 어느 하나에 결합되는 슬라이더부;상기 제 1 프레임부 및 상기 제 2 프레임부 중 다른 하나의 일종단면에 위치되고, 구동력을 발생시키는 구동부; 및상기 구동부와 상기 슬라이더부를 연결하고, 상기 구동력을 상기 슬라이더부에 전달하는 구동 전달부를 포함하되,상기 구동부는 상기 슬라이더부를 상기 제 1 프레임부 및 상기 제 2 프레임부 중 다른 하나의 길이방향을 따라 이동시켜, 상기 전측 휠과 상기 후측 휠 사이의 간격을 조절하는 것을 특징으로 하는 휠 베이스.
- 제 1 항에 있어서,상기 구동 전달부는 바아 형상으로 이루어지고, 상기 제 1 프레임부 및 상기 제 2 프레임부 중 다른 하나를 따라 배치되어 상기 슬라이더부를 관통하고 상기 슬라이더부와 나사 결합되며,상기 구동 전달부는 상기 구동부에 의해 회전하여, 상기 슬라이더부를 상기 구동 전달부 상에서 상기 구동 전달부를 따라 이동시키는 것을 특징으로 하는 휠 베이스.
- 제 2 항에 있어서, 상기 구동부는,회전력을 발생시키는 전동부; 및상기 전동부와 상기 구동 전달부의 일종단을 연결하고, 상기 전동부의 회전력을 상기 구동 전달부로 전달하는 감속부를 포함하는 것을 특징으로 하는 휠 베이스.
- 제 2 항에 있어서, 상기 휠 베이스는,상기 슬라이더부와 상기 구동 전달부 사이에 삽입되어 상기 슬라이더부에 고정되는 베어링부(상기 베어링부는 상기 구동 전달부의 나사골을 따라 배열된 복수 개의 볼들을 포함한다)를 더 포함하는 것을 특징으로 하는 휠 베이스.
- 제 1 항에 있어서,상기 제 1 프레임부 및 상기 제 2 프레임부 중 어느 하나는,상기 제 1 프레임부 및 상기 제 2 프레임부 중 어느 하나의 양측면 상에 각각 길이방향을 따라 함몰 형성되는 레일홈들을 포함하되,상기 제 1 프레임부 및 상기 제 2 프레임부 중 다른 하나는,상기 제 1 프레임부 및 상기 제 2 프레임부 중 다른 하나의 내측면으로부터 돌출형성되어 상기 레일홈들에 대응되어 삽입되는 레일돌기들을 더 포함하는 것을 특징으로 하는 휠 베이스.
- 제 1 항에 있어서,상기 제 1 프레임부 및 상기 제 2 프레임부 중 어느 하나는,상기 제 1 프레임부 및 상기 제 2 프레임부 중 어느 하나의 양측면 상에 각각 길이방향을 따라 돌출 형성되는 레일돌기들을 포함하되,상기 제 1 프레임부 및 상기 제 2 프레임부 중 다른 하나는,상기 제 1 프레임부 및 상기 제 2 프레임부 중 다른 하나의 내측면으로부터 돌출형성되어 상기 레일돌기들에 대응되어 삽입되는 레일홈들을 더 포함하는 것을 특징으로 하는 휠 베이스.
- 제 1 항에 있어서, 상기 휠 베이스는,상기 슬라이더부를 사이에 두고, 상기 수용공간의 양종단에 각각 위치된 스위치부들를 더 포함하되,상기 스위치부에 상기 슬라이더부가 접촉될 때, 상기 구동부가 정지되는 것을 특징으로 하는 휠 베이스.
- 제 1 항에 있어서, 상기 제 1 프레임부 및 상기 제 2 프레임부 중 적어도 하나는,상기 전측 휠 또는 상기 후측 휠에 연결되는 휠 파이프의 일부를 감싸면서, 상기 제 1 프레임부 및 상기 제 2 프레임부 중 적어도 하나에 상기 휠 파이프를 고정시키는 파이프 고정부; 및탄성 재료로 이루어지고, 상기 파이프 고정부와 상기 휠 파이프 사이에 위치되는 완충부를 더 포함하는 것을 특징으로 하는 휠 베이스.
- 제 1 항에 있어서,상기 제 1 프레임부 및 상기 제 2 프레임부 중 어느 하나는 상기 구동부와 마주하도록 더 연장되는 것을 특징으로 하는 휠 베이스.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/368,713 US9333986B2 (en) | 2011-12-26 | 2012-12-21 | Wheelbase for movable structure |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2011-0142612 | 2011-12-26 | ||
| KR1020110142612A KR101311813B1 (ko) | 2011-12-26 | 2011-12-26 | 이동구조물의 휠 베이스 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2013100503A1 true WO2013100503A1 (ko) | 2013-07-04 |
Family
ID=48697879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2012/011315 Ceased WO2013100503A1 (ko) | 2011-12-26 | 2012-12-21 | 이동구조물의 휠 베이스 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US9333986B2 (ko) |
| KR (1) | KR101311813B1 (ko) |
| WO (1) | WO2013100503A1 (ko) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106394687A (zh) * | 2016-11-15 | 2017-02-15 | 杜杭泽 | 一种车轮间距可调节的车架机构 |
| EP3578154B1 (en) * | 2018-06-05 | 2021-08-04 | Matia Robotics Mekatronik Sistemler AR-GE Mühendislik Yazilim Sanayi ve Ticaret Anonim Sirketi | Indoor and outdoor mobility device system |
| JP7211219B2 (ja) * | 2019-04-05 | 2023-01-24 | スズキ株式会社 | 移動体 |
| JP2021030954A (ja) * | 2019-08-27 | 2021-03-01 | スズキ株式会社 | 電動車両 |
| WO2022103028A1 (ko) * | 2020-11-11 | 2022-05-19 | 삼성전자 주식회사 | 강성 가변 바퀴 및 이를 포함하는 이동 장치 |
| KR102867241B1 (ko) * | 2023-08-03 | 2025-10-01 | 인하대학교 산학협력단 | 휠베이스 조절이 가능한 주행장치 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4789181A (en) * | 1987-02-02 | 1988-12-06 | The Binkley Company | Wheeled vehicle suspension |
| JP2001054255A (ja) * | 1999-08-06 | 2001-02-23 | Namiki Precision Jewel Co Ltd | リニア駆動マイクロアクチュエータ |
| KR20020047442A (ko) * | 2000-12-13 | 2002-06-22 | 밍 루 | 나사이송장치 |
| US20050067206A1 (en) * | 2003-04-23 | 2005-03-31 | Trautman Edwin L. | Personal motorized vehicle having an adjustable wheelbase assembly |
| KR20100023763A (ko) * | 2008-08-21 | 2010-03-04 | 에스엠씨 가부시키 가이샤 | 볼나사기구 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3455404A (en) * | 1966-10-18 | 1969-07-15 | Carl J Hansen | Farm vehicle |
| US3797880A (en) * | 1972-03-29 | 1974-03-19 | Carrozzeria Boneschi Srl | Extendable vehicle body |
| US4825971A (en) * | 1985-01-14 | 1989-05-02 | Bernstein Lawrence A | Universal wheeled chair |
| US4941540A (en) * | 1985-01-14 | 1990-07-17 | Bernstein Lawrence A | Universal electric wheeled chair |
| US4834409A (en) * | 1987-10-13 | 1989-05-30 | Kramer Duwayne E | Personal mobility vehicle with expansible wheel base and wheel track |
| US4852898A (en) * | 1988-06-15 | 1989-08-01 | Teresa Donoghue | Collapsible hydraulic polycycle |
| AUPM777594A0 (en) * | 1994-08-30 | 1994-09-22 | Van William Concepts Pty Ltd | Improvements in motor vehicles |
| US5782483A (en) * | 1995-06-05 | 1998-07-21 | Adorno/Rogers Technology, Inc. | Adjustable wheelbase wheelchair |
| US6220382B1 (en) * | 1998-11-17 | 2001-04-24 | Burke Mobility Products, Inc. | Powered wheelchair with separating frame |
| US6530445B1 (en) * | 2000-05-12 | 2003-03-11 | Electric Mobility Corporation | Variable wheelbase personal mobility vehicle |
| JP2005111063A (ja) * | 2003-10-09 | 2005-04-28 | Kyokuto Kaihatsu Kogyo Co Ltd | 電動車椅子 |
| NZ539543A (en) * | 2005-04-20 | 2008-02-29 | Graham John Mahy | Vehicle with adjustable track width and wheelbase |
| US8602153B2 (en) * | 2007-08-06 | 2013-12-10 | Extendquip Llc | Extendable frame work vehicle |
-
2011
- 2011-12-26 KR KR1020110142612A patent/KR101311813B1/ko active Active
-
2012
- 2012-12-21 US US14/368,713 patent/US9333986B2/en active Active
- 2012-12-21 WO PCT/KR2012/011315 patent/WO2013100503A1/ko not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4789181A (en) * | 1987-02-02 | 1988-12-06 | The Binkley Company | Wheeled vehicle suspension |
| JP2001054255A (ja) * | 1999-08-06 | 2001-02-23 | Namiki Precision Jewel Co Ltd | リニア駆動マイクロアクチュエータ |
| KR20020047442A (ko) * | 2000-12-13 | 2002-06-22 | 밍 루 | 나사이송장치 |
| US20050067206A1 (en) * | 2003-04-23 | 2005-03-31 | Trautman Edwin L. | Personal motorized vehicle having an adjustable wheelbase assembly |
| KR20100023763A (ko) * | 2008-08-21 | 2010-03-04 | 에스엠씨 가부시키 가이샤 | 볼나사기구 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101311813B1 (ko) | 2013-09-26 |
| KR20130074520A (ko) | 2013-07-04 |
| US20140375022A1 (en) | 2014-12-25 |
| US9333986B2 (en) | 2016-05-10 |
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