Land vehicles – Wheeled – Tiltable vehicles – stabilized by attendant or article
Patent
1997-09-12
1999-12-21
Mai, Lanna
Land vehicles
Wheeled
Tiltable vehicles, stabilized by attendant or article
280655, B62B 100
Patent
active
060038845
ABSTRACT:
A handcart has a handle, two inner pipes connected to the handle, a movable seat having a downward groove, an opening, two rail plates, two lateral through holes, two lateral recesses, two upper sleeves each receiving the respective inner pipe, two lower sleeves each connected to the respective upper sleeve, two outer pipes each inserted in the respective lower sleeve and receiving the respective inner pipe, and a lower seat having two lateral sleeves receiving two lower ends of the outer pipes. The lower seat has an upward groove. A press button has a downward protruded block with two flat laterals and two lateral flanges. A cover plate has two lateral protrusions. A hollow block has a notch, a post, an inclined face, and a rod. A positioning plate has a slant, a pillar, and a bar. The press button is inserted in the opening and disposed between the rail plates. The rail plates block the lateral flanges. The positioning plate is inserted in the notch. A spring is disposed between the post and the pillar.
REFERENCES:
patent: 4893824 (1990-01-01), Turek et al.
patent: 5257800 (1993-11-01), Yang
patent: 5294145 (1994-03-01), Cheng
patent: 5397151 (1995-03-01), Jserng
patent: 5421605 (1995-06-01), Chen
patent: 5515576 (1996-05-01), Tsai
patent: 5630488 (1997-05-01), Chen
patent: 5639109 (1997-06-01), Liang
patent: 5709398 (1998-01-01), Lu
patent: 5730264 (1998-03-01), Lu
patent: 5864921 (1999-02-01), Chou
Mai Lanna
Restifo Jeff
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