Vertical lift type arm device

Details Vertical lift type arm device Vertical lift type arm device

2005-02-15

2005-02-15

Underwood, Donald W. (Department: 3652)

Material or article handling

Vertically swinging load support

Shovel or fork type

C414S685000, C414S917000

Reexamination Certificate

active

06854951

ABSTRACT:
A vertical lift type arm device includes a set of left and right control links each having three connection shaft holes, a set of left and right central mounting parts which are provided at a center part of the main frame, and a set of left and right mounting parts which are provided at rear parts of the lift arms and extend downward. Front end parts of the control links and the central mounting parts are pivotably attached to each other, center parts of the control links and lower end parts of the mounting parts are pivotably attached to each other, and connection axes of the control links and the central mounting parts are provided at a same height as or at a higher position than connection axes of lower end parts of the rear links and the main frame.

REFERENCES:
patent: 5542814 (1996-08-01), Ashcroft et al.
patent: 5609464 (1997-03-01), Moffitt et al.
patent: 6132163 (2000-10-01), Andrews et al.
patent: 2333759 (1999-08-01), None
patent: 6-26068 (1994-02-01), None
patent: 6-136786 (1994-05-01), None

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