|Publication number||US3272555 A|
|Publication date||Sep 13, 1966|
|Filing date||Nov 12, 1964|
|Priority date||Nov 12, 1964|
|Publication number||US 3272555 A, US 3272555A, US-A-3272555, US3272555 A, US3272555A|
|Inventors||Barecki Chester J, Knapp Robert T|
|Original Assignee||American Seating Co|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (3), Referenced by (8), Classifications (5)|
|External Links: USPTO, USPTO Assignment, Espacenet|
Sept. 13, 1966 C. J. BARECKI ETAL ADJUSTABLE BACK LOUNGE CHAIR Filed Nov. 12, 1964 2 Sheets-Shee l WITNESS CHESTER J. B
ROBERT 'l'. KN
ARECKI APP Mfg/WQ, ATTDRNEYS Sept. 13, 196 C, J. BARECKI ETAE 3,272,555
ADJUSTABLE BACK LOUNGE CHAIR Filed Nov. l2, 1964 2 Sheets-Sheet 2 '6 y Enano FIG 9 lNvENTQRs: .l5 3o CHESTER J. BARECKI g1 'ou '003940 ROBERT T KNARR 23 United States Patent O 3,272,555 ADJUSTABLE BACK LOUNGE CHAIR Chester J. Barecki and Robert T. Knapp, Grand Rapids, Mich., assignors to American Seating Company, Grand Rapids, Mich., a corporation of New Jersey Filed Nov. 12, 1964, Ser. No. 410,358 2 Claims. (Cl. 297-369) This invention relates to an adjustable back lounge chair, and more particularly to a lounge chair for patients and invalids in hospitals, nursing homes, doctors oices, etc.
An object of the invention is to provide a lounge chair which may be readily adjusted to place the back of the chair at varying angles whereby the patient may be seated in a normal position or in a position for a head support, or the back may be adjust-ed for lumbar support. A further object is to provide a lounge chair wherein the back may be adjusted to a plurality of positions, including an erect position and at least four additional positions as desired. Yet another object is to provide in a tubular chair frame me-ans actuated by a control lever along one side of the seat for readily adjusting the angle of the chair back. Other specific objects and advantages will appear as the specification proceeds.
The invention is shown in an illustrative embodiment by the accompanying drawings, in which:
FIGURE 1 is a perspective view of a lounge chair embodying our invention; FIG. 2, a side View in elevation, adjusted positions of the back `of the cha-ir being shown in dotted lines; FIG. 3, a rear view in elevation; FIG. 4, a broken top plan view, a portion of the cushions being removed to show the chair structure; FIG. 5, an enlarged detail and part sectional view showing the pivot guide and locking mechanism utilized for controlling the position of the chair back, the back being shown in normal position; FIG. 6, a view similar to FIG. 5 but showing the adjusting mechanism being moved for the selection of a second position; FIG. 7, a view similar to FIG. 6` but showing the adjustment completed; FIG. 8, -a view similar to FIG. 7 but showing the locking mechanism adjusted for supporting the back in a further and more rearwardlyinclined position; FIG. 9, a detail sectional view, the section being taken as indicated at -line 9 9 of FIG. 5; and FIG. l0, a detail sectional view, the section being taken as indicated at line V10- 10 of FIG. 5.
In the illustration given, `10 designates a tubular seat frame supported in a generally horizontal position by legs 11. The legs 1\1 on each side of the frame are welded t-o the tubular frame A10 but are also extended upwardly to support a cushion armrest 12 on each side of the chair. Secured to the U-shaped frame .10 is a bottom pan 13 for supporting a cushion seat A14. Also welded to each side rail of the seat frame 10 are upwardly-extending pivot standards 15.
The back frame 116 is provided by a tubular U-shaped member, and the member .16 is connected at its lower ends by a crosspiece 17. A back sheet I18 is connected to the crossbar 17 and t-o the upper rail of frame 16 to provide a support for the back cushion 19.
The back Iframe 16 is pivotally mounted upon the standards 15 by pivot pins 20.
Means for adjusting the position of the back 16 will -now be described. As shown best in FIG. 3, one leg of the back frame -16 is extended downwardly and flattened at 21 and lying adjacent the tubular seat rail 10a. The tubular member 10a is provided on its inner side with a yslot 212 adapted t-o receive a connector pin 23 which extends into the iiattened portion y21 of the back \16.
As shown best in FIGS. 5-10, the pin 23 extending through the elongated slot 22 engages a guide head 24 which forms part of `a pivot guide within the tubular ice member 10a. Extending forwardly of the head 24 is a stem 25 which is secured at its forward end to an elongated ratchet bar 26 having downwardly-extending spaced teeth 27. A spring 28 engages at its rear the head 24, and at its forward end is confined by inwardly-extending screws 29.
A lever 30 extends upwardly along the side of the cushion 14 and is secured to an arm 31 which extends forwardly and which carries locking teeth 32. The tubular member 10a is cut away at 33 to permit the teeth 32 to extend upwardly and engage the teeth 27 of the ratchet 26. The arm 31 is connected to a U-.shaped member having upwardly-extending wings 34 enclosing the sides of the tube 10a, and a pivot pin `35 supports the arm upon the tube 10a. A rearwardly-extending portion of lthe .arm 3.1 is provided with a pin 36 receiving a spring 37, and the upper end of the spring is anchored within tube 10a by a pin 38.
T-o prevent rotation of the ratchet member 26, we provide a stud or screw 39 which engages ya longitudinal slot 40 in the member 26.
Operation In the operation of the structure, the patient may be seated in the lounge chair in the normal position illustrated in solid lines in FIGS. 1 and 2, but by manipulating the pivot control mechanism, the back may be moved to the various positions shown in dotted lines in FIG. 2. To eifect the movement from normal position to a rearwardly-inclined back pos-ition, the patient or other user may raise the lever 30 so as to depress the bar 31, as shown in FIG. 6, andthe patient may then move the back against the force of spring 28 to a desired inclined position and then, upon releasing the lever 30, spring 37 urges the teeth 32 upwardly into engagement with the teeth 27 of ratchet 26. Adjustment to at least five positions is provided with the ratchet means shown, but it will be understood that additional teeth may be provided for further adjustments if desired. 'The cylindrical head member 24 and the cylindrical ratchet member 26 provide stabilized supports for the pivot control whereby movement of the back is accomplished smoothly and evenly, and the patient or occupant is able to make the adjustments with a minimum of effort.
While in the foregoing `specication we have shown a specific embodiment in considerable detail for the purpose of illustrating our invention, it will be understood that such deta-il or details may be varied widely by those skilled in the art without departing from the spirit of our invention.
1. In a chair, a horizontal tubular seat frame, a cushion carried by said frame, legs supporting said frame and extending thereabove, armrests carried by said legs above said cushion, pivot standards mounted on said seat Iframe .and extending upwardly therefrom, a back frame pivotally mounted on said standards, a cushion carried by said back frame, one side of said back frame being extended downwardly adjacent a tubular side member of said seat frame, said tubular member being provided on its inner side with a longitudinal slot, `a pivot guide slidably -mounted in said tubular member and provided at its rear end with a head and at its forward end with a cylindrical ratchet having its lower surface cut away to form downwardly-extending teeth, a pin extending through said slot and connecting said pivot guide head and said extended portion of ,said back frame, a spring within said tubular member engaging said head, pins extending through said tubular member and restricting forward movement of said spring, a pin extending through `said tubular member and engaging a longitudinal slot within said ratchet member, a lever pivotally mounted on said tubular member and having a rearwardly-extending arm equipped with upwardly-extending tooth means, said tubular member being cut awayto allow said tooth means -to engage selectively said ratchet teeth for latching said ratchet in a plurality `of longitudinal positions, and spring means normally urging said arm upwardly.
2. In a chair, a horizontal tubular seat frame, a seat carried by said frame, ylegs supporting said frame and extending thereabove, pivot standards mounted on said seat frame and extending upwardly therefrom, a chair bac-k pivotally mounted on said standards, one side of said chair back being extended downwardly adjacent a tubular side member of said seat frame, said tubular member being provided on its inner side with a longitudinal slot, a pivot guide slidably mounted in said tubular member and provided at its rear end with a head and at its forward end with a cylindrical ratchet having its lower surface cut away to form downwardly-extending teeth, a pin extending through said slot and connecting said pivot guide head and said extended portion of said chair back, a spring within said tubular member engaging said head, pins extending through said tubular member and restricting forward movement of said spring, a pin extending through sa-id tubular member and engaging a longitudinal slot in the upper portion -of said ratchet member, a lever pivotally mounted on said tubular member and provided with a rearwardly-extending arm equipped with upwardly-extending t-ooth means, said tubular member being cut away to -allow said tooth means to engage selectively said ratchet teeth for latching said ratchet in a plurality of longitudinal positions, and spring means normally urging said arm upwardly.
References Cited by the Examiner UNITED STATES PATENTS 2,283,485 5/1942 Beck 297-369 X 2,645,0.75 7/195'3 Wong 297-365 X 2,962,087 1'1/ 1960 Barecki et al. 297-367 JAMES T. MCCALL, Primary Examiner.
FRANCIS K. ZUGEL, Examiner.
R. B. FARLEY, G. O. FINCH, Assistant Examiners.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US2283485 *||Aug 28, 1939||May 19, 1942||Karpen & Bros S||Reclining seat mechanism|
|US2645275 *||Apr 27, 1951||Jul 14, 1953||Wong George L||Fisherman's lounging seat|
|US2962087 *||Dec 19, 1958||Nov 29, 1960||American Seating Co||Reclining chair|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3317241 *||Apr 18, 1966||May 2, 1967||Pace David E||Reclining chair|
|US3708205 *||Jan 18, 1971||Jan 2, 1973||Rothermel H||Adjustable back rest support for chairs|
|US4165900 *||Jun 12, 1978||Aug 28, 1979||J. C. Sales & Mfg., Inc.||Reclinable seating structures|
|US4291916 *||Aug 20, 1980||Sep 29, 1981||Chardon Max M F||Seat for bus, train or airplane|
|US4455048 *||Jun 7, 1982||Jun 19, 1984||Itw Fastex Italia S.P.A||Seats with a device for locking the inclination of the seat back|
|US5393120 *||Oct 13, 1992||Feb 28, 1995||Krueger International, Inc.||Auditorium seating system|
|US5601335 *||Nov 7, 1994||Feb 11, 1997||Krueger International, Inc.||Auditorium seating system|
|US8616640||May 13, 2011||Dec 31, 2013||Knoll, Inc.||Chair|
|International Classification||A47C1/031, A47C1/032|