Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Handle – handle component – or handle adjunct – Luggage-type
Patent
1998-04-27
1999-06-15
Mah, Chuck Y.
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Handle, handle component, or handle adjunct
Luggage-type
190115, 280 47315, A47B 9502
Patent
active
059112638
ABSTRACT:
A locking device is provided for a collapsible luggage trolley of the type having a pair of outer tubes, a pair of inner tubes respectively, telescopically received in the outer tubes, and an operative handle connected to upper ends of the inner tubes. The locking device includes a rack formed on the inner periphery of one of the outer tubes. A rod is mounted in one inner tube which is telescopically received in the outer tube. The rod includes an upper end operably connected to the operative handle to move therewith. A latching device includes a link having an upper end securely connected to a lower end of the rod to move therewith, a plate member mounted to a lower end of the link and including two lateral walls each having an inclined slot defined therein, and a latch block including two protrusions formed on two lateral sides thereof and slidably received in the inclined slots of the plate member, respectively. The latch block further includes two teeth formed on a side thereof for releasably engaging with the rack on the outer tube. A box houses the rod and the plate member and defines a notch through which the teeth of the latch block is passable. A spring is mounted around the link and has two ends respectively attached to the plate member and the box for biasing the teeth of the latch block to engage with the rack.
REFERENCES:
patent: 5459908 (1995-10-01), Chen
patent: 5584097 (1996-12-01), Lu
patent: 5630250 (1997-05-01), Chou
patent: 5729866 (1998-03-01), Chg
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