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Clutch control mechanical device for the brush axle of a vacuum cleaner

  • US 5,839,160 A
  • Filed: 02/21/1997
  • Issued: 11/24/1998
  • Est. Priority Date: 02/21/1997
  • Status: Expired due to Fees
First Claim
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1. A clutch mechanism for a vacuum cleaner having an undercarriage with a rotatable brush axle connected to an endless belt that is movable between driving and non-driving positions, and an upper body movably attached to the undercarriage so as to be movable between an upright position and an oblique position, the clutch mechanism comprising:

  • a) a pressure control shaft movably connected to the undercarriage and in contact with the upper body so as to move between first and second positions as the upper body moves between the upright and oblique position;

    b) a belt mount member pivotally connected to the undercarriage and having a portion engaging the endless belt whereby pivoting movement of the belt mount member moves the endless belt between the driving and non-driving positions;

    c) a spring acting on the belt mount member so as to bias the belt mount member toward a position in which the endless belt is in the driving position;

    d) a first pivoting plate in contact with the pressure control shaft whereby movement of the pressure control shaft causes pivoting movement of the first pivoting plate; and

    ,e) a second pivoting plate connected to the first pivoting plate and to the belt mount member, whereby when the upper body is in the upright position the endless belt is in the non-driving position and when the upper body is in the oblique position, the endless belt is in the driving position.

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