Brake released clutch mechanism
OwnerHugh A. Zindler, Sheldon D. Pollowinventors
Life of this patent
Estimating the term…
Abstract
A clutch mechanism between rotating drive and driven members particularly for smaller horsepower applications. A drum is carried on the drive member. The driven member carries clutch shoes that are movable into and out of engagement with the drum. Springs are provided for effecting movement of the shoes into engagement with the drum to drivingly clutch the drive and driven members together. A brake band is provided for selectively effecting movement of the shoes out of engagement with the drum and to stop rotation of the driven member without interrupting the rotation of the drive member.
Claims20
In a clutch mechanism for disposition between rotatable drive and driven members, a drum carried on said drive member, clutch shoes pivotally carried on said driven member and being movable relative thereto into and out of clutching engagement with the drum, means for effecting movement of said shoes into engagement with the drum to drivingly clutch the drive and driven members together, and a brake band for effecting movement of said shoes out of engagement with the drum and to stop rotation of the driven member without interrupting the rotation of the drive member said brake band, clutch shoes and drum being generally aligned radially.
In a clutch mechanism for disposition between rotatable drive and driven members, a drum carried on said drive member, clutch shoes pivotally carried on said driven member and being pivotally movable relative thereto into and out of clutching engagement with the drum, means for effecting movement of said shoes into engagement with the drum to drivingly clutch the drive and driven members together, and means for effecting movement of said shoes out of engagement with the drum and to stop rotation of the driven member without interrupting the rotation of the drive membrer, said clutch shoes being provided with radially spaced, generally circumferential inner and outer surfaces, the inner surface of each shoe being engageable with the drum and the outer surface being engageable by the means for effecting movement of said shoes out of engagement with the drum.
In a clutch mechanism for disposition between rotatable drive and driven members, a drum carried on said drive member, clutch shoes carried on said driven member, said clutch shoes being pivotally connected adjacent one end thereof to the driven member and being pivotally movable radially in a given plane relative to the driven member into and out of clutching engagement with the drum, means biasing said shoes into engagement with the drum to drivingly clutch the drive and driven members together, brake means selectively engageable with the clutch shoes to effect a disengagement between said shoes and the drum and to stop said driven member without interrupting the rotation of said drive member, said biasing means for effecting movement of the shoes into engagement with the drum and said selectively engageable brake means for effecting disengagement of the shoes from the drum being generally disposed in and acting in said given plane and means biasing the brake means to effect the disengagement between the clutch shoes and drum and to stop said driven member.
In a clutch mechanism for disposition between rotatable drive and driven members, a drum carried on said drive member, clutch shoes carried on said driven member, said clutch shoes being pivotally connected adjacent one end thereof to the driven member and being pivotally movable radially relative to the driven member into and out of clutching engagement with the drum, means biasing said shoes into engagement with the drum to drivingly clutch the drive and driven members together, a brake band selectively engageable with the clutch shoes to effect a disengagement between said shoes and the drum and to stop said driven member without interrupting the rotation of said drive member and means biasing said brake band to effect the disengagement between the clutch shoes and drum and to stop the driven member.
In a clutch mechanism for disposition between rotatable drive and driven members, a drum carried on said drive member, clutch shoes carried on said driven member, said clutch shoes being pivotally connected adjacent one end thereof to the driven member and being pivotally movable radially relative to the driven member into and out of clutching engagement with the drum, means biasing said shoes into engagement with the drum to drivingly clutch the drive and driven members together, a brake band selectively engageable with the clutch shoes to effect a disengagement between said shoes and the drum and to stop said driven member without interrupting the rotation of said drive member, said brake band extending around the clutch shoes and having one end thereof secured relative to a fixed anchor and the opposite end thereof secured to a movable anchor, said brake band being extended in one position of the movable anchor to avoid contact with the clutch shoes and thus provide for engagement between said shoes and the drum to drivingly clutch the drive and driven members together and being contracted in a second position of the movable anchor to pivot the clutch shoes inwardly against the force of the biasing means to thus effect disengagement between said shoes and the drum and to stop said driven member means biasing said brake band to said second position.
In a clutch mechanism for disposition between rotatable drive and driven members, a drum carried on said drive member, clutch shoes pivotally carried on said driven member and being pivotally movable relative thereto into and out of clutching engagement with the drum, means for effecting movement of said shoes into engagement with the drum to drivingly clutch the drive and driven members together, and means for effecting movement of said shoes out of engagement with the drum and to stop rotation of the driven member without interrupting the rotation of the drive member, said clutch shoes being provided with a pair of radially spaced, generally circumferential surfaces, one of said pair of surfaces being engageable with the drum and the other of said pair of surfaces being engageable by the means for effecting movement of said shoes out of engagement with the drum.
A combined brake and clutch mechanism comprising a drive member mounted for rotation and including thereon a clutch drum, a driven member carried for rotation coaxially with and relative to said drive member, a clutch shoe pivotally connected to said driven member for common rotation therewith and for pivotal movement relative to a position of engagement with said clutch drum, biasing means for urging said clutch shoe toward said position of engagement, a brake surface on said clutch shoe, a brake member moveable between a first position wherein said brake member is spaced from said brake surface and a second position wherein said brake member engages with the brake surface to brake rotation of said driven member and to displace said clutch shoe from said position of engagement against the action of said biasing means, and means biasing said brake member to said second position.
Dependencies are inferred from the claim text.