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Accumulating conveyor

  • US 4,372,441 A
  • Filed: 03/16/1981
  • Issued: 02/08/1983
  • Est. Priority Date: 09/15/1978
  • Status: Expired due to Term
First Claim
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1. A drive module for a conveyor having a plurality of load carrying rollers arranged in generally parallel, side-by-side relationship and mounted for rotation on transversely extending shafts supported by parallel side rails, said drive module comprising:

  • (a) power means for driving said module comprising at least two endless powered force transmitting members disposed below said load carrying rollers;

    (b) a generally vertically extending supporting device mounted to one of said side rails;

    (c) rotatable means supported by said supporting device for supporting two of said powered endless force transmitting members;

    (d) a rotatable friction wheel operatively connected to said load carrying rollers so that when said friction wheel is rotated it will cause said load carrying rollers to rotate;

    (e) a rotatable pressure roller movable between a first position out of engagement with said friction wheel and a second position in which said roller drivingly engages said friction wheel;

    (f) power means for drivingly engaging said pressure roller and engageable with said force transmitting power means, including a first continuously driven rotating sprocket disposed on the pivotal axis of said support means, a second rotating sprocket disposed on the rotational axis of and concentrically connected to said pressure roller, and an additional endless chain drivingly interconnecting said two sprockets;

    (g) support means on said supporting device for supporting said pressure roller for movement between said first and second positions, said second position being said driving position; and

    (h) actuating means for moving said support means from said first position to said second position.

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