Seat pedestal with vertical and swivel adjustments

{
  "publication_number": "US3845926A",
  "country": "US",
  "kind": "A",
  "title": "Seat pedestal with vertical and swivel adjustments",
  "abstract": "A seat pedestal has upper and lower plates separated by a vertically extending double telescoping tube. To adjust seat height, a bat handle controlled toggle linkage locking arrangement includes a sliding bolt which engages any one of several discrete, vertically displaced, keeper holes formed in an intermediate one of the telescopic tubes. By turning the bat handle, a friction bite may be secured against the innermost one of the telescopic tubes to hold the seat in any of an infinite number of swivel positions.",
  "claims": [
    "1. A pedestal comprising a double telescoping vertical tube including at least a rotary-free tube, a unitary double acting locking means secured to an outer one of said telescoping tubes, means in an intermediate one of said tubes for receiving said locking means to fix the telescoping length and therefore the vertical height of said pedestal, and means associated with said locking means acting in one way for selectively releasing or restraining the rotation of said tubes with respect to each other so that they may or may not rotate with respect to each other depending upon the operated condition of said locking means and associated with said locking means acting in another way for releasing said tubes so that they may telescope.",
    "2. The pedestal of claim 1 wherein said locking means comprises a toggle leverage device.",
    "3. The pedestal of claim 2 wherein said keeper means comprises an aligned series of longitudinal displaced holes in the intermediate tube, and a capture slot in at least one of said tubes for restricting the telescopic excursion of said tubes to fix the allowable height excursions of said pedestal, said toggle cooperating with said holes and slot.",
    "4. The pedestal of claim 1 and compression means inside said telescoping tube for urging said telescoping tubes to a fully extended position.",
    "5. A pedestal for a seat comprising a double telescoping vertical tube including at least a rotary-free tube, locking means secured to an outer one of said telescoping tubes, keeper means in an intermediate one of said tubes for receiving said locking means to fix the telescoping length and therefore the vertical height of said pedestal, said locking means comprising a two-arm toggle linkage movable between three positions, means responsive to movement of said toggle linkage to one position for selectively restraining both the rotation and telescoping of said tubes, means responsive to movement of said toggle linkage to a second position for restraining the telescoping while enabling the rotation of said tubes, and means responsive to movement of said toggle linkage to a third position for enabling both said rotation and telescoping of said tubes.",
    "6. The pedestal of claim 5 wherein said locking means comprises sliding bolt controlled in its longitudinal extension position by said toggle linkage, said sliding bolt being positioned to slide through said keeper holes and bite against an inner tube, and means for adjusting the horizontal extemity of said bolt position.",
    "7. An automotive seat pedestal comprising upper and lower plates separated by a double telescoping tube means, bat handle controlled toggle linkage lock means attached to an outer one of said telescoping tubes and engaging any one of several discrete longitudinally displaced keeper means formed in an intermediate one of the telescoping tubes, and means responsive to a turning of the bat handle on the toggle lock for adjusting a frictional bite on a second one of the telescopic tubes for holding the seat in any of an infinite number of swivel positions.",
    "8. The seat of claim 7 wherein said locking toggle linkage comprises two arms which are movable between three positions, means responsive to movement of said toggle linkage into one position for selectively restraining both the swivel and height positions of said seat, means responsive to movement of said toggle linkage into a second position for retaining said height position while enabling alteration of said swivel position, and means responsive to movement of said toggle linkage into a third position for enabling a change in both said swivel and height position.",
    "9. The seat of claim 8 and compression means inside said telescoping tube for urging said telescoping tubes to a fully extended position.",
    "10. The seat of claim 9 wherein said keeper means comprises an aligned series of longitudinally displaced holes in the intermediate tube, and a capture slot in at least one of said tubes for restricting the telescoping of said tubes to fix the allowable extremities of height adjustments of said seat.",
    "11. The seat of claim 10 wherein said locking means further comprises a sliding bolt controlled in horizontal position by said toggle linkage, said sliding bolt being positioned to slide through a selected one of said keeper holes and frictionally bite against an inner one of said tubes, and means for incrementally adjusting the horizontal extremity of said bolt position."
  ],
  "cpc": [
    "B60N 2/143",
    "A47C 3/34",
    "B60N 2/02",
    "B60N 2/163",
    "B60N 2/1675",
    "B60N 2/1685",
    "B60N 2/169"
  ],
  "assignees": [
    "FREEDMAN SEATING CO"
  ],
  "filing_date": "1973-04-02",
  "publication_date": "1974-11-05",
  "grant_date": "1974-11-05",
  "priority_date": "1973-04-02",
  "application_number": "US-34721473-A",
  "family_id": "23362786",
  "citations": [
    "DE1026494B",
    "DE1219290B",
    "GB360111A",
    "GB806321A",
    "US3533583A"
  ]
}