Ladder with auxiliary support

Details Ladder with auxiliary support Ladder with auxiliary support

1994-07-25

1996-04-30

Chin-Shue, Alvin C.

Fire escape, ladder, or scaffold

Ladder with pivoted prop

Lateral prop

182107, E06C 138

Patent

active

055116329

ABSTRACT:
A ladder of the pivoted or leaning type includes a support pivoted for movement between a stowed position parallel to the ladder frame and an arcuately extended support position. The support includes telescoping members biased toward an axially extended position away from an axially retracted position. A lug mechanism prevents retracting movement of the telescoping members when the support is being used to stabilize the ladder. The lug is mounted for axial movement to disable the mechanism and allow the telescoping members to retract into an axially stowed position. A J-slot is used to hold the telescoping members in the stowed position.

REFERENCES:
patent: 468987 (1892-02-01), Fowler
patent: 1890423 (1932-12-01), Teagarder
patent: 2051420 (1936-08-01), Renholdt
patent: 2997127 (1961-08-01), Wojtowicz
patent: 3508628 (1970-04-01), Conrad
patent: 3786900 (1974-01-01), Olsen
patent: 3901354 (1975-08-01), Grebausky
patent: 5379861 (1995-01-01), Amacker

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