[특허]Combination castor brake system whose castor assemblies are braked and positioned simultaneously

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60B-033/00
출원번호	US-0347807 (2012-01-11)
등록번호	US-8418315 (2013-04-16)
발명자 / 주소	Lin, Ming-Hsien Yang, Feng-Hsi
출원인 / 주소	Sunny Castors Co., Ltd.
대리인 / 주소	Kamrath, Alan
인용정보	피인용 횟수 : 5 인용 특허 : 54

초록 ▼

A combination castor brake system includes a linking device, and a plurality of castor assemblies connected with the linking device. Each of the castor assemblies includes an operation unit, a braking unit connected with the operation unit, and at least one roller connected with the braking unit. Th

A combination castor brake system includes a linking device, and a plurality of castor assemblies connected with the linking device. Each of the castor assemblies includes an operation unit, a braking unit connected with the operation unit, and at least one roller connected with the braking unit. The operation unit of each of the castor assemblies includes a mounting seat, a slide, and at least two limit rods. The braking unit of each of the castor assemblies includes a housing, a top cap, a control shaft, an elastic member, and a braking member. The roller of each of the castor assemblies is rotatably mounted on the housing of the braking unit. Thus, the linking device can drive and operate the castor assemblies to brake and position the castor assemblies simultaneously.

대표청구항 ▼

1. A combination castor brake system, comprising: a linking device; anda plurality of castor assemblies connected with the linking device;wherein each of the castor assemblies comprises:an operation unit;a braking unit connected with the operation unit;and at least one roller connected with the brak

1. A combination castor brake system, comprising: a linking device; anda plurality of castor assemblies connected with the linking device;wherein each of the castor assemblies comprises:an operation unit;a braking unit connected with the operation unit;and at least one roller connected with the braking unit;the operation unit of each of the castor assemblies includes:a mounting seat having an interior provided with a slideway;a slide slidably mounted in the slideway of the mounting seat and having a first end provided with a connecting portion pivotally connected with the linking device and a second end provided with a pressing ramp; andat least two limit rods each extended through the mounting seat and the slide;the mounting seat of the operation unit has two opposite sidewalls each provided with at least two through holes to allow passage of the limit rods;the slide of the operation unit has two opposite sidewalls each provided with at least two elongate limit slots slidable on the limit rods;the limit rods of the operation unit in turn extend through the through holes of the mounting seat and the limit slots of the slide;the connecting portion of the slide is driven by the linking device so that the slide of the operation unit is movable in concert with the linking device;the braking unit of each of the castor assemblies includes:a housing rotatably mounted on the mounting seat of the operation unit;a top cap mounted on the mounting seat of the operation unit;a control shaft movably mounted in the housing and having an upper end provided with a head pressing the pressing ramp of the slide and a lower end extended into the housing;an elastic member mounted on the control shaft and biased between the mounting seat of the operation unit and the control shaft; anda braking member secured on the lower end of the control shaft to move in concert with the control shaft and having a bottom provided with a braking portion that is movable to engage the roller;the braking member of the braking unit is received in the housing;the roller of each of the castor assemblies is rotatably mounted on the housing of the braking unit and is disposed under the braking portion of the braking member. 2. The combination castor of claim 1, wherein each of the two opposite sidewalls of the mounting seat has a top provided with a protruded fixing ear which has a plurality of fixing holes for affixing the mounting seat of the operation unit to a bottom of an object. 3. The combination castor of claim 1, wherein the head of the control shaft has an arcuate shape and is disposed between the pressing ramp of the slide and the elastic member;the head of the control shaft is pushed by the elastic member and is movable toward the pressing ramp of the slide. 4. The combination castor of claim 1, wherein the braking member of the braking unit has a side provided with a chamber which has a top wall provided with a first positioning toothed portion;the braking unit of each of the castor assemblies further includes a positioning member mounted on the mounting seat of the operation unit and having a periphery provided with a second positioning toothed portion;the positioning member of the braking unit is received in the housing;the second positioning toothed portion of the positioning member is disposed under the first positioning toothed portion of the braking member;the first positioning toothed portion of the braking member is movable to engage the second positioning toothed portion of the positioning member when the braking member of the braking unit is moved downward in concert with the control shaft. 5. The combination castor of claim 1, wherein each of the castor assemblies comprises two rollers connected with the braking unit;the rollers of each of the castor assemblies are rotatably mounted on two opposite sides of the housing;each of the rollers has an inner periphery provided with a plurality of first locking teeth;the braking portion of the braking member has two opposite sides each provided with a plurality of second locking teeth which are movable downward to engage the first locking teeth of a respective one of the rollers. 6. The combination castor of claim 1, wherein the slide of the operation unit is disposed above the mounting seat of the operation unit;the limit slots of the slide are aligned with and connected to the through holes of the mounting seat;the pressing ramp of the slide is disposed above and connected to the slideway of the mounting seat;the top cap of the braking unit is disposed above the housing;the elastic member of the braking unit is received in the slideway of the mounting seat and has an upper end abutting the head of the control shaft and lower end abutting the mounting seat of the operation unit;the control shaft of the braking unit is in turn extended through the mounting seat of the operation unit into the housing;the control shaft of the braking unit is movable in the slide and movable in the slideway of the mounting seat.

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이 특허에 인용된 특허 (54) 인용/피인용 타임라인 분석

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Jeffrey L. Lewandowski ; Martin W. Stryker ; Richard L. McDaniel, Caster brake mechanism.
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Lin, Ching-Sung, Caster brake system.
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Kawanabe Masatoshi (Tokyo JPX), Caster brake with push button actuation of a slide member for locking the caster wheel.
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Sung-Wang Yang TW, Caster structure with functions of brake and rotation constraint.
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Lin, Ching-Sung, Caster with a brake structure.
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Schlsser Klaus (Bochum DEX), Caster with brake.
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Chou Chuon-Hai (Taipei TWX), Caster with brake for use in a mobile structure.
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Chu, Keio, Caster with brake unit and direction unit.
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Screen Stafford T. (Stourbridge GBX), Castor brake.
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Chen, Ching-Tsun, Castor having a braking function.
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Tsai, Po Chuan, Castor having efficiently locking function.
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Yang, Sung-Wang; Lin, Ming-Hsien; Chen, Po-Lu, Castor that is braked and positioned simultaneously.
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Tsai, Po-Chuan, Castor that is braked solidly and stably without producing vibration.
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Dean Joseph D. ; Starnes Mark A., Castor with brake and locking mechanism.
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Mattinson Frederick (Andover EN), Castors.
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Flood William R., Channel members.
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Branson Terry L. (Round Rock TX) Titel Don (Liberty Hill TX) Reed Steve (Austin TX), Compact detachable dolly for heavy computer systems.
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Araya Moreno, Fernando Esteban; Riba Romeva, Carles, Device for the optional guiding of at least one self-steering wheel of a trolley.
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Lin, Qing-Song, Double-pedal double-wheel truckle with independent braking and releasing functions.
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Weismiller Matthew W. (Batesville IN) Kramer Kenneth L. (St. Paul IN), Electrically activated visual indicator for visually indicating the mode of a hospital bed castor.
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Reckelhoff, Jerome E.; Reinke, Christian H., Hospital bed caster control system.
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Sonnendorfer, Horst; Wieth, Franz, Immobilizer.
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Gray, Andrew, Latching mechanism.
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Craig J. Guttmann CA; Sean Guttmann CA; Peter DePinto CA; Csaba Lemak CA, Load indicating spring caster.
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He, Tsai Tien, Motion control apparatus for hospital bed.
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Reinke,Christian H.; Turner,Jonathan D.; Heimbrock,Richard H., Patient support apparatus having a brake/steer mechanism with a foot pedal gear reducer.
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Toennesland, Aasulv; Morasse, Louis; Meurer, Robert A., Pedal mechanism for operating brake and directional lock on lever-operated caster wheels.
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Vetter Klaus,DEX, Roller, in particular a castor.
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Liao, Chaokuo, Selectively lockable caster.
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Oelrichs Gunter,DEX ; Kirschey Jorg,DEX, Steering roller.
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Figel, Gregory J.; Rudolf, Kenneth Q.; Albersmeyer, David A.; Heimbrock, Richard H.; Walke, James L.; Michael, Brian P.; Suttman, Glenn C.; Turner, Jonathan D.; Wiggins, Brian T.; Weiler, Martin D., Stretcher foot pedal arrangement.
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Figel, Gregory J.; Rudolf, Kenneth Q.; Albersmeyer, David A.; Heimbrock, Richard Henry; Walke, James L.; Michael, Brian P.; Suttman, Glenn C.; Turner, Jonathan D.; Wiggins, Brian T.; Weiler, Martin D., Stretcher having hand actuated caster braking apparatus.
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Figel, Gregory J.; Rudolf, Kenneth Q.; Albersmeyer, David A.; Heimbrock, Richard Henry; Turner, Jonathan D.; Wiggins, Brian T.; Osborne, Eugene E.; Batta, Nicholas C., Stretcher having hand actuated wheel braking apparatus.
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Lan Red,TWX, Stroller having a brake device.
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Fallshaw, Andrew; Crawford, Andrew Charles; Trainor, Mathew Keith; Strahan, Brent Matthew; Harrison, Kenneth, Swivel castor braking system.
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Frolí K, Zbynek, Undercarriage for hospital bed.
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Hanson James R. ; McDaniel Richard L. ; Bartow Richard J. ; North Geary A., Unitary pedal control of brake and fifth wheel deployment via side and end articulation with additional unitary pedal control of height of patient support.
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Chang, Chin Lin, Wheel assembly.
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Ross Charles, Wheel assembly.
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Yan, Li-Lan, Wheel structure.
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이 특허를 인용한 특허 (5) 인용/피인용 타임라인 분석

Spektor, Yefim, Caster wheel braking systems.
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Spektor, Yefim, Caster wheel braking systems.
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Shahroodi, Hossein, Gravitationally aligning wheels.
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Waitz, Karl-Heinz, Swivel caster for suitcases, items of luggage, transport containers or the like.
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Kopp, Robert G.; Thuma, Michael G.; Vogler, Michael R., Swivelable and unidirectional platform truck.
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[미국특허] Combination castor brake system whose castor assemblies are braked and positioned simultaneously 원문보기

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[미국특허] Combination castor brake system whose castor assemblies are braked and positioned simultaneously 원문보기

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이 특허에 인용된 특허 (54) 인용/피인용 타임라인 분석

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