Hybrid low profile and standard ratchet system

  • US 8,205,529 B1
  • Filed: 10/04/2010
  • Issued: 06/26/2012
  • Est. Priority Date: 12/11/2007
  • Status: Active Grant
First Claim
Patent Images

1. A combination of an open drive ratchet wrench and a drive tool having a releaseable interface therebetween, the combined drive ratchet wrench and drive tool comprising:

  • the open drive ratchet wrench comprising;

    an open drive ratchet wrench body including an elongated handle having a ratchet drive section at a first end thereof;

    a drive gear receiving cavity formed within the ratchet drive section; and

    ,a drive gear rotationally retained within a drive gear receiving cavity, the drive gear comprising;

    a socket attachment receptacle defined by a socket attachment receptacle surface concentrically passing through a longitudinal axis of the drive gear,a drive gear upper surface located at a first end of the drive gear, the drive gear upper surface defining a plane that is substantially perpendicular to the longitudinal axis,a drive gear lower surface located at an opposite end of the drive gear, the drive gear lower surface defining a plane that is substantially perpendicular to the longitudinal axis,a first chamfered surface providing an angled transition between the drive gear upper surface and an upper end of the socket attachment receptacle surface, anda second chamfered surface providing an angled transition between the drive gear lower surface and a lower end of the socket attachment receptacle surface;

    the drive tool comprising;

    a drive tool body having a fastener head receiving section at a first end and a concentric receptacle drive section at an opposite second end;

    a drive tool receptacle drive section comprising a plurality of spaced-apart planar surfaces which are concentrically arranged about a drive tool central axis, each planar surface commencing at a distal end of the receptacle drive section and extending towards the fastener head receiving section, and terminating at a transition surface; and

    a releasable locking feature integrated into the receptacle drive section, the releasable locking feature comprising a snap ring positioned within a recess about a circumference of the receptacle drive section, wherein the snap ring is compressed into the recess when subjected to a compressive force,wherein, when the drive tool and the drive gear are secured to one another during use, the each transition surface seats against the first chamfered surface, between the drive gear upper surface and the upper end of the socket attachment receptacle surface and the snap ring seats against the second chamfered surface, between the drive gear lower surface and the lower end of the socket attachment receptacle surface in a manner releasably securing the drive tool to the drive gear.

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