Seat suspension for underground mining machines
First Claim
1. A seat suspension for an underground mining machine comprising:
- (a) fixed bracket means adapted to be attached to a side wall of an operator compartment of an underground mining machine, said fixed bracket means including plural rod members each having upper and lower ends attached respectively to upper and lower portions of said fixed bracket means;
(b) sliding bracket means including plural upper horizontal apertured flange segments and plural lower horizontal apertured flange segments, said flange segments sized and positioned to receive and slide on said plural rod members to provide relative vertical movement with respect to said fixed bracket means, said sliding bracket means attached to a back portion of a seat provided within the operator compartment; and
(c) vertical suspension means operably connected between said fixed bracket means and said sliding bracket means for supporting the seat and for reducing and dampening vibration and shock transmitted from the mining machine to the seat, said fixed bracket means, said sliding bracket means and said suspension means each positioned entirely behind said seat.
8 Assignments
0 Petitions
Accused Products
Abstract
A compact seat suspension for an underground mining machine is disclosed in which a vertical suspension is operably connected between a fixed bracket and a sliding bracket for supporting a seat and for reducing and dampening vibration and shock transmitted from the mining machine to the seat. The fixed bracket is attached to a side wall of the mining machine and includes one or more vertical guide members. The sliding bracket is movably mounted on the vertical guide members for relative vertical movement with respect to the fixed bracket. The sliding bracket is attached to the back portion of a seat provided within the mining machine. The entire compact assembly is adapted to be positioned entirely behind rather than beneath the seat, making it possible to utilize the suspension in areas of reduced height. The fixed bracket may be adjustably attached to the mining machine by a pair of hanger members which include recesses adapted to receive and retain pins which extend outwardly from opposite edges of the fixed bracket.
29 Citations
10 Claims
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1. A seat suspension for an underground mining machine comprising:
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(a) fixed bracket means adapted to be attached to a side wall of an operator compartment of an underground mining machine, said fixed bracket means including plural rod members each having upper and lower ends attached respectively to upper and lower portions of said fixed bracket means; (b) sliding bracket means including plural upper horizontal apertured flange segments and plural lower horizontal apertured flange segments, said flange segments sized and positioned to receive and slide on said plural rod members to provide relative vertical movement with respect to said fixed bracket means, said sliding bracket means attached to a back portion of a seat provided within the operator compartment; and (c) vertical suspension means operably connected between said fixed bracket means and said sliding bracket means for supporting the seat and for reducing and dampening vibration and shock transmitted from the mining machine to the seat, said fixed bracket means, said sliding bracket means and said suspension means each positioned entirely behind said seat. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A seat suspension for an underground mining machine comprising:
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(a) fixed bracket means adapted to be attached to a side wall of an operator compartment of an underground mining machine, said fixed bracket means including two parallel vertical rod members each having upper and lower ends attached respectively to upper and lower ends of the fixed bracket means; (b) sliding bracket means including a pair of upper spaced part horizontal apertured flange segments on an upper end thereof and a pair of lower spaced apart horizontal apertured flange segments on a lower end thereof, said flange segments sized and positioned to receive and travel on said rod members for relative vertical movement with respect to said fixed bracket means, said sliding bracket means attached to a back portion of a seat provided within the operator compartment; and (c) vertical suspension means operably connected between said fixed bracket means and said sliding bracket means for supporting the seat and for reducing and dampening vibration and shock transmitted from the mining machine to the seat, said suspension means including a pair of compression springs carried by said rod members and a vertical hydraulic cylinder provided between said rod members and between said sliding bracket means and said fixed bracket means with an upper end of said cylinder attached to an upper end of said sliding bracket means and a lower end of said cylinder attached to a lower end of said fixed bracket means, said sliding bracket means and said suspension means each positioned entirely behind said seat. - View Dependent Claims (9, 10)
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Specification