Stabilizer jack

  • US 5,501,428 A
  • Filed: 12/14/1994
  • Issued: 03/26/1996
  • Est. Priority Date: 12/14/1994
  • Status: Expired due to Term
First Claim
Patent Images

1. An improved stabilizer jack for securement to he underside of a recreational vehicle, comprising:

  • a channel frame formed with a top wall having inner and outer ends and opposite side walls projecting downwardly and turned inwardly to form track flanges cooperating with said top wall to form a track and terminating in parallel retaining edges spaced a predetermined distance apart;

    an elongated screw rotatably mounted from said frame and restrained against longitudinal movement;

    a trunnion plate carried in said track including a threaded bore for engaging said screw and formed with a reinforcing annular rim surrounding said threaded bore and having an inner diameter substantially the same diameter as said bore;

    a support leg having proximal and distal ends, said proximal end pivotally carried from said trunnion plate, said distal end projecting downwardly and outwardly from said track;

    a strut having upper and lower ends, said upper end formed with upwardly turned retainer flanges spaced laterally apart and received in closed spaced relation between the respective said retaining edges;

    a first pivot pin pivotally connecting said upper end of said strut to said frame to hold said upwardly turned retainer flanges interposed between said inwardly turned flanges of said frame; and

    a second pivot pin pivotally connecting said lower end of said strut to said leg whereby said frame may be mounted to the underside of said recreational vehicle and said screw rotated to drive said trunnion plate along said track to pivot said strut about said first and second pivot pins to lower said distal end of said leg while said first pivot pin holds said retainer flanges constrained between the respective said retaining edges of said track.

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