Railways – Suspended
Reexamination Certificate
2005-08-02
2009-06-30
Le, Mark T (Department: 3617)
Railways
Suspended
C414S540000, C414S541000
Reexamination Certificate
active
07552683
ABSTRACT:
A lifting stroke of a platform (3), liftably/lowerably supported through a cross link (13a), of a traveling body (1) for conveyance is increased with a low floor structure of the traveling body (1) maintained. In a conveying apparatus having the lifting/lowering platform, there are laid a first cam rail (47A) working on a first to-be-operated portion (28) to lift the platform (3) to a middle height (H1) and a second cam rail (48) working on a second to-be-operated portion (29) to lift the platform (3) from the middle height (H1) to the maximum height (H2). The second to-be-operated portion (29) is provided at a middle bending fulcrum (36) of a toggle link (32) interposed between the cross link (13a) and a fixing position on the conveying traveler body (1) side. When the platform (3) is lifted to the middle height (H1), the toggle link (32) is extended such that both upper fulcrums (37, 39) are separated, relative to the middle bending fulcrum (36), to both the front and rear in the traveling direction. The second to-be-operated portion (29) in this extended state of the toggle link (32) is positioned below the first to-be-operated portion (28) in the same state.
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DAIFUKU Co., Ltd.
Le Mark T
Smith Jason C
St. Onge Steward Johnston & Reens LLC
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