Patent GB-619408-A (GB)
Title: A reclining chair or like article or furniture
IPC: A47C1/035
Filed: 1946-12-07
Abstract: 619,408. Seats. LORENZ, A. Dec. 7, 1946, No. 36249. Convention date, Jan. 12. [Class 52 (ii)] An adjustable reclining chair, comprising a link system pivoted to a support 20, Fig. 1, which may be mounted on wheels 30, the link system consisting of the seat 32, lower extension 38 of the back rest 34, and two or more connecting links such as 40, 44 situated below the plane of the seat 32, and a leg rest 56 pivoted to the seat 32, is provided with guiding means, such as a guiding link 50, pivoted to the support and one of the connecting links, for the control of the movements of the link system and co-operating control surfaces 76 on one of the connecting links and on the leg rest 56 whereby angular adjustable movement of the reclining chair causes corresponding movement of the leg rest 56. In some instances a disengagement of one of the links of the link system permits the back rest, seat and leg rest to be placed in horizontal alignment which may be adjusted vertically to facilitate the transference of a patient from a bed to the chair. As shown in Fig. 4 a holding rod 58 is pivoted to the leg rest whereby the latter may be moved into any angular adjusted position about its pivot 48 independently of the movement of the link system. The holding rod 58 may be clamped in adjusted position by means of a handle 74 and split sleeve 64. The leg rest 56 is held against the controlling cam or projection 76, when the holding rod 58 is free, by means of a spring 78. In some instances the rod 58 is not positively connected to the leg rest .56 but bears against it and may be used to lift it into adjusted position. A locking means whereby the occupant may lock the chair in any adjusted position comprises a rod 92, Fig. 1, pivoted to the seat and passing through a clampable sleeve 96 carried by the support 20, the rod 92 also having adjustable washers 118 limiting the movement of the rod and consequently of the seat 32. The leg rests 56 may be in two parts pivoted on coaxial pivots so as to permit say, a stiff leg to be held in fixed relation to the seat while the other leg remains on that part of the leg rest which moves in dependence with the movement of the chair. Fig. 22 shows a modification in which the lower connecting link 640 is pivoted to an intermediate connecting link 625 and the front connecting link 644, has an angular extension 641 the end of which forms the controlling surface cam 676 for the control of the leg rest 656. As shown the seat 632 and back extension 638 are pivoted at 636 and 629 to the support 620 in spaced relation one with the other. Fig. 16 shows an arrangement in which the link system is carried on bearers 144 which are adjustable vertically by means of a lazy tong arrangement 158, 160 operable by screw 182 and nut 172 mechanism. Such mechanism may be replaced by hydraulic, electric or other mechanism. In some instances the guiding means instead of being a guiding link 50 for the link system may comprise a pin on one of the connecting links engaging in a cam slot in the support and the cam surface 76 for the leg rest may be arranged to be adjustable on the connecting link 44.