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US 5,328,240 AGranted
Support for a seat including a pedestal adapted to receive a vertically inclined column
AssigneeSifa Sitzbabrik GmbH
InventorKonrad Neumuller
Life of this patent
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AssigneeSifa Sitzbabrik GmbH
InventorKonrad Neumuller
Estimating the term…
A vertically adjustable seat with means to permit adjustment of the horizontal inclination of the seat and partial rotation thereof, consisting of a pedestal base, a support frame made of two tubings attached to it, as well as a seat supporting member fastened to the support frame and a seating unit affixed to this seat supporting member, in which arrangement the seat supporting member, along with the seating unit, is vertically adjustable along the support frame, and the seating unit is adjustable in inclination, in which arrangement the seating unit is fastened onto a seat supporting member and the seat supporting member is swivellably mounted between two forward projecting arms of a click-stop unit which is slidable along the support frame, said seat supporting member being capable of being locked into various positions, and in which arrangement the click-stop unit with detent latches is capable of being brought into engagement with detent holes in the support frame to effect adjustment of the height of the seat. Thus, vertical and horizontal adjustment of the seat is easily accomplished, and requires only one hand of the user. Partial rotation of the seat is also facilitated.
Vertically adjustable seat with means to permit adjustment of the horizontal inclination of the seat and partial rotation thereof, comprising a pedestal base, a support column of two tubing pieces connected to the pedestal base, a seat supporting member fastened to the support column, and a seat unit fixed to the seat supporting member, the seat supporting member and the seat unit being vertically adjustably positionable along the support column, the seat unit being adjustable in inclination, characterized in that the seat unit (5) is fastened onto said seat supporting member (8), in that the seat supporting member (8) is swivellably mounted between two forward projecting arms (42) of a click-stop unit (6) being slidable along the support column (2) and lockable on the support column at selected positions thereon, and in that the click-stop unit (6) has detent latches (11) engagable with detent holes (7) on the support column (2), the seat supporting member (8) being U-shaped and having downward pointing arms (43), and in that the seat supporting member (8) is mounted on a shaft (12) fixed in an upper section of the click-stop unit between the arms (42) thereof, in which arrangement the shaft (12) projects through slotted holes (44) located in the arms (43) of the seat supporting member, the seat supporting member being movable along these slotted holes (44), and in that the arms (43) of the seat supporting member (8) have adjustment notches in lower sections thereof, which are capable of being engaged in and disengaged from a detent means (14) fixed in a lower section of the arms (42) of the click-stop unit (6) and in accordance with the movement of the seat supporting member (8) in the slotted holes (44).
Vertically adjustable seat with means to permit adjustment of the horizontal inclination of the seat and partial rotation thereof, comprising a pedestal base, a support column of two tubing pieces connected to the pedestal base, a seat supporting member fastened to the support column, and a seat unit fixed to the seat supporting member, the seat supporting member and the seat unit being vertically adjustably positionable along the support column, the seat unit being adjustable in inclination, characterized in that the seat unit (5) is fastened onto said seat supporting member (8), in that the seat supporting member (8) is swivellably mounted between two forward projecting arms (42) of a click-stop unit (6) being slidable along the support column (2) and lockable on the support column at selected positions thereon, and in that the click-stop unit (6) has detent latches (11) engagable with detent holes (7) on the support column (2), the seat supporting member (8) having an upper surface (52), in that there is a hole (28) located at approximately the middle of the upper surface (52), in that around the hole (28) on the upper surface (52), placed at regular intervals apart, there are located at least two arcuate grooves (29), in that the grooves (29) have a deepening (41) in their centre sections, and from there they slope upward gradually on both sides, in that the seat unit (5) carries a seat plate (30) on its under side, in that from this seat plate (30) a threaded rood (34) extends downward through the hole (28) in the upper surface (52) of the seat supporting member (8), in that on the under side of the seat plate (30) there are likewise arcuate grooves (32) with deepenings and upward sloping ends fixed to correspond with the grooves (29) on the upper surface (52) of the seat supporting member (8), in that captive ball bearings (33) are placed in between the grooves (29) on the upper surface (52) of the seat supporting member (8) and the grooves (32) in the seat plate (30), and in that the threaded rod (34) beneath the upper surface (52) of the seat supporting member (8) extends downward through, an assembly of components including at least one washer (35), an axial ball bearing (36), another washer (37), a resilient element (38) and a further washer (39), said components being fastened in assembly by means of a nut (40).
Vertically adjustable seat with means to permit adjustment of the horizontal inclination of the seat and partial rotation thereof, comprising a pedestal base, a support column of two tubings connected to the pedestal base, a seat supporting member attached to the support column and a seat unit fixed onto this seat supporting member, characterized in that the seat supporting member (8) has an upper surface (52), in that approximately in the middle of the upper surface (52) there is located a hole (28), in that, in the upper surface (52), at regular intervals apart around the hole (28) there are fixed at least two arcuate grooves (29), in that the grooves (29) having a deepening (41) in their centre sections, and from there they gradually slope upward on both sides, in that the seat unit (5) carries a seat plate (30) on its under side, in that from the seat plate (30) a threaded rod (34) extends downward through the hole (28) in the upper surface (52) of the seat supporting member (8), in that on the under side of the seat plate (30) there are likewise fixed curvilinear grooves (32) with deepenings and upward sloping ends, to correspond to the grooves (29) in the upper surface (52) of the seat supporting member (8), in that captive ball bearings (33) are placed in between the grooves (29) in the upper surface (52) of the seat supporting member (8) and the grooves (32) in the seat plate (30), in that the threaded rod (34) underneath the upper surface (52) of the seat supporting member (8) extends downward through an assembly of components including at least one washer (35), an axial ball bearing (36), another washer (37), a resilient element (38) and a further washer, said components being fastened in assembly by means of a nut (40).
Dependencies are inferred from the claim text.