Battery forklift drive unit

Details Battery forklift drive unit Battery forklift drive unit

2011-07-19

2011-07-19

Schwartz, Christopher P (Department: 3657)

Brakes

Wheel

Axially movable brake element or housing therefor

C188S072900

Reexamination Certificate

active

07980364

ABSTRACT:
The invention is aimed at providing a battery forklift drive unit which makes a large space unnecessary for disposing brakes in the vicinities of drive units, thereby to achieve making the vicinities of drive units compact in a battery forklift. To this end, a second gear disposed in a drive case of the drive unit is formed inside with a space in which a wet type brake section is disposed and the wet type brake section comprises an inner disk whose entire inner periphery is attached to the second gear, an outer disk which lies opposite to the inner disk and whose entire outer periphery is attached to a side of the drive case, and a pressure plate for pressing together the inner and outer disks lying opposite to each other.

REFERENCES:
patent: 3132724 (1964-05-01), Ansteth
patent: 3237724 (1966-03-01), Kershner et al.
patent: 5090501 (1992-02-01), McNulty
patent: 5147255 (1992-09-01), Strehler et al.
patent: 5174419 (1992-12-01), Strehler et al.
patent: 1 499 995 (1978-02-01), None
patent: 51-72871 (1976-06-01), None
patent: 2003-247573 (2003-09-01), None
patent: 2005-029117 (2005-02-01), None
International Preliminary Report on Patentability, Chapter I of the Patent Cooperation Treaty, undated, for PCT/JP2007/056762. 6 sheets.
English Language International Search Report dated May 15, 2007 issued in parent Appln. No. PCT/JP2007/056762.

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