US3328076A - Angularly adjustable seat - Google Patents

Angularly adjustable seat Download PDF

Info

Publication number
US3328076A
US3328076A US434398A US43439865A US3328076A US 3328076 A US3328076 A US 3328076A US 434398 A US434398 A US 434398A US 43439865 A US43439865 A US 43439865A US 3328076 A US3328076 A US 3328076A
Authority
US
United States
Prior art keywords
tubular element
seat
arm
chair
locking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US434398A
Other languages
English (en)
Inventor
Naef Johannes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maglum SA
Original Assignee
Maglum SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maglum SA filed Critical Maglum SA
Application granted granted Critical
Publication of US3328076A publication Critical patent/US3328076A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B60N2/23—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by linear actuators, e.g. linear screw mechanisms

Definitions

  • a seat has a swinging back that is spring biased forwardly and is lockable by manipulation of a lever.
  • a pair of tubes telescope one within the other, and the end of the inner tube is a split sleeve with a knurled outer surface.
  • One tube is connected to the back and the other to the seat.
  • a wedge member is axially movable into and out of the split sleeve by manipulation of the lever, thereby selectively to lock and unlock the tubes relative to each other.
  • the present invention has for object an arm-chair with a tilting back comprising a linear device for locking the angular positions of the back relative to the seat of this arm-chair as well as a resilient return device tending to fold over the back in the direction of the seat.
  • This hinged seat is distinguishable from known seats of this kind by the fact that the linear locking device comprises two tubular elements sliding one within the other and mechanically connected by their free ends the one to the seat and the other to the back of said armchair and by the fact that the inner tubular element is equipped with a control device provided with an operating member located outside the said tubular element, and mechanically connected to a wedging device located inside said tubular element.
  • FIG. 1 shows partially, certain parts being seen in section, a first embodiment of the arm-chair, the locking device being in operative position.
  • FIG. 2 is a view similar to that of FIG. 1, the locking device being however in inoperative position.
  • FIG. 3 shows a detail of the locking device.
  • FIG. 4 shows partiallyin section and on a larger scale the tubular elements and a part of the wed-ging device.
  • FIG. 5 shows partially, certain parts being seen in secthe frames 1 and 3 of the arm-chair are placed relative to the hinge joints 4 in such a way that the back tends to be folded over on the seat in the direction of the arrow at.
  • This arm-chair is further provided with a linear locking device fixing the desired respective angular positions of the back and of the seat of the arm-chair.
  • This linear locking device comprises two tubular elements 7, 8 telescopically engaged one within the other.
  • the inner tubular element 8 is equipped with a control device provided with an operating member 9, located outside said inner tubular element 8, and mechanically connected to a device for locking by wedging, located inside said tubular element 8 and including pincers P and a separating member 10.
  • the outer tubular element 7 is mounted at A by its free end on the frame 1 of the seat of the arm-chair and extends tion, a second embodiment of the arm-chair, the locking device being in operative position.
  • FIG. 6 is a'view similar to that of FIG. 5, the locking device being however in inoperative position.
  • FIG. 7 shows a detail of the locking device of this second embodiment.
  • the arm-chair object of the invention comprises a seat having a frame 1 and a stufiing 2 as well as a back also having a frame 3 and a stufiing.
  • the frame 1 of the seat and the frame 3 of the back are hinged one to the other by means of hinge joints 4.
  • These frames 1 and 3 are constituted in known manner for example by means of tubular elements. The shape and the dimensions of these frames are determined by the type of arm-chair under consideration.
  • a resilient return action tends to move angularly the back in the direction of the seat, as shown by the arrow a, about the hinge joints 4.
  • This resilient return action is constituted by a coil spring 5 one end of which is secured to a nose 6 of the frame 1 of the seat while the other end of this spring 5 is fixed to the frame 3 of the back.
  • the inner tubular element 8 is mounted at B by its free end on a lever arm 11 integral with the frame 3 of the back.
  • the tubular elements 7, 8 are mounted on the frames 1, 3 in such a way that they may effect movements and in particular rotations or angular movements of low angular amplitude relative to the frames 1, 3. It is thus not necessary to provide hinges at A and B, a mounting through the agency of a flexible connecting member already conferring to the tubes 7 and 8 the necessary freedom for the satisfactory operation of the device.
  • the outer diameter of the inner tubular element 8 corresponds to the inner diameter of the outer tubular element 7.
  • These tubular elements 7, '8 are telescopically Hand is provided with longitudinal slots 13 so as to form pincers P, elastic in the radical direction, that is to say so as to permit of varying the diameter of the end of said inner tubular element 8.
  • a separating member 10 is constituted by a nut the outer surface of which isconical and of which the end of smallest diameter is directed towards, or engaged in, the pincers P forming the end of the inner tubular element 8.
  • This separating member 10 is screwed on the end of a rod 14 extending axially inside the inner tubular element 8.
  • a counter-nut 15 permits of fixing the axial position of the separating member or latch 10 relative to the rod 14 and .thus to the pincers P.
  • This pincers P, this separating member 10 and this rod 14 form together a locking device by wedging permitting of preventing any movement of the tubular elements 7, 8 the one relative to the other.
  • This locking device forms an integral part of a control device provided with an operating member 9 disposed inside the tubes 7 and 8 and mechanically connected to this locking device.
  • This operating member 9 pivots at 16 on a support 17 rigidly fixed on the inner tubular element 8 adjacent to its end mounted on the lever arm 11 of the frame 3 of the back.
  • An actuating lever 18 pivots at 1-9 on said support 17 and passes diametrally right through the inner tubular member 8 through orifices 20.
  • This actuating lever 18 is mechanically connected to the rod 14, disposed axially inside the inner tubular element, by means of a yoke 21 and a pin 22 passing through the said actuating lever 18 as well as the flanges of said yoke 21.
  • the free upper end 23 of the actuating lever 18 is connected by means of a small rod 24 pivoted at each its ends by means of pins 25, 26 on the one hand on the said upper end 23 of the lever 18 and on the other hand on the end of the arm 27 of the operating member 9.
  • a stop 28 integral with the support 17 determines the operative position of'the operating member 9 shown in FIG. 1.
  • the separating member is also in operative position that is to say engaged and forced inside the pincers P forming the end of the inner tubular element 8. Consequently, this separating member causes a radial expansion of the end P of the tube 8, so that the tubes 7 and 8 are from that moment rigidly connected one to the other by wedging of the elements of the pincers P against the inner walls of the tube 7.
  • the operating member 9 and the locking device are held in this operative position shown in FIG. 1 by the position of the hinge 26 of the control device which is located above (FIG. 1) a straight line d connecting the spindles 16 and 25.
  • the axial position of the separating member 10 relative to the rod 14 is adjusted in such a way that when the operating member 9 is in operative position, this separating member causes the separating of the pincers of the inner tubular element 8 and the application of its outer scored surface 12 against the inner surface of the outer tubular element 7 with a force such that any movement of the tubular elements 7, 8 one relative to the other is prevented.
  • the separation between two possible angular positions of the back may be reduced at will, the locking device being linear that is to say that the pincers P is capable, under the action of the separating member 10, of immobilizing the tubular elements 7, 8 in any relative position.
  • the second embodiment of the locking device according to the invention is very similar to the one already described.
  • the outer tubular element 7 is constituted by one of the tubes of the frame 3 of the back.
  • the inner tubular element 8 is fixed at C on the nose 6 of the frame 1 of the seat of the arm-chair.
  • a seat having a tilting back, resilient means urging the back to fold in the direction of the seat, and means for locking the back in a vertically swung adjusted position relative to the seat, said means comprising two tubular elements sliding one within the other and mechanically connected by their free ends the one to the seat the other to the back, the inner tubular element terminating inside the outer tubular element in spaced arms having a scored outer surface for clampingly engaging the inside of the outer tubular element, said arms having a resiliency that tends to keep them out of locking engagement with the inner surface of the walls of the outer tubular element, wedge means movable into and out of the end of said inner tubular element, and an operating member located outside the tubular elements and mechanically connected to the wedge means for selectively moving said wedge means into and out of the inner end of said inner tubular element thereby selectively to force said scored surfaces into locking engagement with the outer tubular element and to release said locking engagement, respectively.
  • a seat as claimed in claim 2 and means interconnecting said operating member and said rod so that said operating member is held in its operative position regardless of the pull exerted on the rod by the wedge means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
US434398A 1964-03-03 1965-02-23 Angularly adjustable seat Expired - Lifetime US3328076A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH265664A CH416348A (fr) 1964-03-03 1964-03-03 Siège articulé

Publications (1)

Publication Number Publication Date
US3328076A true US3328076A (en) 1967-06-27

Family

ID=4238644

Family Applications (1)

Application Number Title Priority Date Filing Date
US434398A Expired - Lifetime US3328076A (en) 1964-03-03 1965-02-23 Angularly adjustable seat

Country Status (4)

Country Link
US (1) US3328076A (fr)
CH (1) CH416348A (fr)
FR (1) FR1427280A (fr)
GB (1) GB1082123A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5660440A (en) * 1996-02-28 1997-08-26 Fisher Dynamics Corporation Linear recliner with easy entry memory feature
US5707112A (en) * 1996-05-03 1998-01-13 Magna Lomason Corporation Linear recliner with memory seatback dump mechanism
US5769493A (en) * 1996-02-28 1998-06-23 Fisher Dynamics Corporation Linear recliner with easy entry memory feature
US5823622A (en) * 1997-05-08 1998-10-20 Fisher Dynamics Corporation Linear recliner with memory dump mechanism
US5918939A (en) * 1997-03-27 1999-07-06 Fisher Dynamics Corporation Seat recliner with memory dump mechanism
US5979986A (en) * 1996-02-28 1999-11-09 Fisher Dynamics Corporation Linear seat recliner with easy entry memory feature
US6948772B1 (en) * 2000-03-03 2005-09-27 Fisher Dynamics Corporation Linear seat recliner for structural seat

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996025070A1 (fr) * 1995-02-15 1996-08-22 Ashfield Engineering Company Wexford Limited Dispositif de commande pour un mecanisme de blocage monte sur une chaise

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2833336A (en) * 1955-10-25 1958-05-06 Aerotherm Corp Seats with angularly adjustable back
US2894566A (en) * 1955-09-19 1959-07-14 Rockwell Standard Co Seat structure
US3024067A (en) * 1959-10-12 1962-03-06 Brandoli Marino Seat having adjustable back
CH366461A (fr) * 1960-10-25 1962-12-31 Krestis Anstalt Fauteuil à dossier inclinable
US3156004A (en) * 1961-12-07 1964-11-10 Recaro A G Hinge fittings for seats with adjustable back rests
US3198577A (en) * 1962-07-24 1965-08-03 Fiat Spa Adjustable seat back for vehicle seats

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2894566A (en) * 1955-09-19 1959-07-14 Rockwell Standard Co Seat structure
US2833336A (en) * 1955-10-25 1958-05-06 Aerotherm Corp Seats with angularly adjustable back
US3024067A (en) * 1959-10-12 1962-03-06 Brandoli Marino Seat having adjustable back
CH366461A (fr) * 1960-10-25 1962-12-31 Krestis Anstalt Fauteuil à dossier inclinable
US3133764A (en) * 1960-10-25 1964-05-19 Krestis Anstalt Articulation device for a chair with a tilting back
US3156004A (en) * 1961-12-07 1964-11-10 Recaro A G Hinge fittings for seats with adjustable back rests
US3198577A (en) * 1962-07-24 1965-08-03 Fiat Spa Adjustable seat back for vehicle seats

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5660440A (en) * 1996-02-28 1997-08-26 Fisher Dynamics Corporation Linear recliner with easy entry memory feature
US5769493A (en) * 1996-02-28 1998-06-23 Fisher Dynamics Corporation Linear recliner with easy entry memory feature
US5979986A (en) * 1996-02-28 1999-11-09 Fisher Dynamics Corporation Linear seat recliner with easy entry memory feature
US5707112A (en) * 1996-05-03 1998-01-13 Magna Lomason Corporation Linear recliner with memory seatback dump mechanism
US5918939A (en) * 1997-03-27 1999-07-06 Fisher Dynamics Corporation Seat recliner with memory dump mechanism
US6095609A (en) * 1997-03-27 2000-08-01 Fisher Dynamics Corporation Seat recliner with memory dump mechanism
US5823622A (en) * 1997-05-08 1998-10-20 Fisher Dynamics Corporation Linear recliner with memory dump mechanism
US6948772B1 (en) * 2000-03-03 2005-09-27 Fisher Dynamics Corporation Linear seat recliner for structural seat

Also Published As

Publication number Publication date
GB1082123A (en) 1967-09-06
CH416348A (fr) 1966-06-30
FR1427280A (fr) 1966-02-04

Similar Documents

Publication Publication Date Title
US4779925A (en) Height-adjustable swivel chair equipped with gas-pressure spring, especially office chair or office armchair
US3328076A (en) Angularly adjustable seat
US4703974A (en) Seat furniture
US3352601A (en) Chair
US5333368A (en) Chair control with forward tilt
US5080434A (en) Adjusting mechanism for an adjustable chair
US4678230A (en) Back support means
JPH02111310A (ja) シートの背もたれの傾き調節装置
SE445168B (sv) Stolsrygg, spec till en fordonsstol
DE813760C (de) Stuhl mit abgefederter Rueckenlehne
US3001821A (en) Adjustable seat structure
EP3616983A1 (fr) Dispositif de réglage pour appui-tête
US10413072B2 (en) Height-adjustable armrest
US4787673A (en) Chair support with adjustment device
US3695685A (en) Longue chair
IT9021855A1 (it) Supporto per la seduta di poltroncine da ufficio o simili con dispositivo per la variazione dell'inclinazione della seduta stessa.
JPH0775575B2 (ja) 調節自在の頭支え
US3362747A (en) Seat, more particularly a vehicle seat
US3455601A (en) Support unit for chair
EP4275991B1 (fr) Appareil de support d'enfant et ensemble de support juvénile
US426602A (en) Rest for rocking-chairs
CN107788737B (zh) 可翻转的头枕倾斜和腰部机构
US3276816A (en) Reclining seat actuating mechanism
US20230415805A1 (en) Child carrier
US2576466A (en) Reclining article of furniture