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특허 상세정보

Suspensions for wheeled transport devices

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B62D-021/11   
미국특허분류(USC) 280/037; 280/654; 280/655; 280/655.1; 280/047.17; 280/019.1; 280/047.26; 280/019.3
출원번호 US-0185316 (2005-07-20)
등록번호 US-7500680 (2009-03-10)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Fish & Richardson P.C.
인용정보 피인용 횟수 : 4  인용 특허 : 22

A wheeled transport device, such as luggage, a trash can, a garden cart or other hand cart configured to be manually wheeled in an inclined position by a pedestrian user, includes a collapsible handle at one end and wheels at the other end. The wheels are independently connected to the device by respective suspensions that exhibit a compliance, in response to forces applied to their respective wheels by the surface in a direction opposing wheel motion, selected to sufficiently alter suspension geometry to temporarily change an attitude, such as toe, camb...


What is claimed is: 1. A wheeled transport device configured to be manually wheeled in an inclined position by a pedestrian user, the transport device comprising: a main body defining a compartment therein for containing goods to be transported; a handle disposed at an upper end of the body when the transport device is in an operative, inclined position, the handle manually graspable by the pedestrian user while walking; and at least two wheels disposed at a lower end of the body when the transport device is in an operative, inclined position, each of t...

이 특허에 인용된 특허 (22)

  1. Yu Wen-Chi (Chang Hua TWX). Automatically extensible and retractable wheel unit for mounting on a corner of a suitcase. USP1988094773123.
  2. Tsai Wang Mei-Li,TWX. Baggage caster. USP1998075778488.
  3. Watanabe, Yasukuni; Shizume, Takeharu. Caster. USP2003056568030.
  4. Chen Tzu L. (No. 26-2 ; Lane 96 ; Hsin Lung Rd. ; Section 2 Taipei TWX). Device for towing luggage. USP1986054588055.
  5. Andrisin ; III John J. (Middleburg Hts. OH) Wiatrak Thomas (Brunswick OH) Lauro C. William (Akron OH). Hub and wheel assembly with shock absorber. USP1992045103530.
  6. Craig J. Guttmann CA; Sean Guttmann CA; Peter DePinto CA; Csaba Lemak CA. Load indicating spring caster. USP2002116484359.
  7. Knowles Harford E. (2718 Jackson St. Hollywood FL 33020). Luggage case. USP1981034254850.
  8. Chang Yuan-Chi,TWX. Luggage case structure with retrievable handle and wheels. USP1998095813503.
  9. Joel N. Bleicher. Maneuverable self-propelled cart. USP2002056390213.
  10. Nykoluk, Cory O.; Nordstrom, Mark B.; O'Shea, Jr., James Edward. Method of and device for extending and retracting the wheels of a piece of towable baggage. USP2003096612411.
  11. Lampugnani, Umberto. Mounting element for the wheels of rolling containers. USP2004076758534.
  12. Fu-Jung Chang TW. Retractable wheel for a built-in luggage cart. USP2002046367602.
  13. Hager Clarence H. (3408 Corbridge La. Rockford IL 61107). Shock absorbing caster wheel suspension with frictional vertical oscillation dampening. USP1987084685174.
  14. Clausen, Eivind. Shock-absorbing wheel assemblies for luggage bag. USP2004086769701.
  15. Cho-Kai Hu TW. Touch-sensitive screen stylus. USP200211D465805.
  16. Wu,Yi Ming. Transporting wheel structure of storage or luggage container. USP2007077237660.
  17. Mueller Christoph (Kleiner Muristalden 28 CH-3006 Bern CHX). Unitary resilient bearing support. USP1985064524482.
  18. Friedman Donald M. (8 Glenwood Dr. Hauppauge NY 11788) Monner Fred M. (21 Pimlico Dr. Commack NY 11725). Variable terrain dolly. USP1984024429897.
  19. Walker ; Jr. James W. (125 Leavell Woods Dr. Jackson MS 39212). Vehicle suspension. USP1990064930806.
  20. Deliman Lawrence J. ; Elles Daniel G. ; Gregg James S. ; King William L. ; Pedlar Roger ; Younessian Elliot J.. Wheel mounting system for molded luggage case. USP1999075921635.
  21. Davis, Robert P.; Bertelsen, Jeffrey A.. Wheeled lightweight collapsible luggage. USP2003086604617.
  22. Dean E. Wilcox. Window sill cover. USP2002036360500.