US2266055A

US2266055A - Adjustable reclining chair

Info

Publication number: US2266055A
Application number: US250114A
Authority: US
Inventors: Luckhardt Hans; Lorenz Anton
Original assignee: Individual
Current assignee: Individual
Priority date: 1938-01-12
Filing date: 1939-01-10
Publication date: 1941-12-16
Anticipated expiration: 1958-12-16

Description

Dec. 16, 1941.l H. LUcKHARD'r ETAL 2,266,055

ADJUSTABLE RECLINING CHAIR y y Filed Jan. 10, 1939 2 Sheets-Sheet 1 Fly; 'I'zigz. I y, /0

By my I Dee. 16, 1941. H. LUCKHARDT Erm. 2,266,055v

ADJUSTABLE RECLINING' CHAIR Filed. Jan. 10, 1939 v 2 Sheets-Sheet 2 om.` one anton `Emana,-Beriinchlle Ge l Awnu: www 1o, ness, sox-ion No. 250,114

ing chair, and' more particularly to anadjustable reclining chair, in which a back-rest; a seat, ya

leg-rest and connecting link-means are pivotally polygonal structure with unequal sides,` and wherein one point of the polygonal structure is pivoted Vto a support and cooperating sliding means are arranged on the support and on one-- member ofthe polygonal structurevvto control the movement of the members of the polygonal structure.-

Y kOne4 object of our invention is to simpliiythe construction scribed Y linotherobject of our invention is to provide of/ reclining chairs of-theabove de a reclining chair, the movable parts of whichmay be easily brought into I lvarious positions. while.

the user ofthe chair rests thereon.

i Still another object of our inventionis to pro-'ivide a v:reclining chairof lthe above described' type, in which the load-is .transferred to thesup-l port at the lowest possible-pointofthe supportik lIn order to carry'out our invention into prac-f' comprising asupport, a back-rest, afseat, a legrest, said seat extending between a vlowerpoint L of said back-rest Vand ari-upper point ofsaid leg.- rest and being pivoted thereto', said fback-restf having at leastv one lower f extension extending-.5

downwardly beyondthe pivotlpointfbetweenthe back-rest andthe seat,l lat :least one connecting;

1' 3am l2, 1933 i f 1 wi iss-10s) Qur invention relates to anadjustable reclin` Fig. 3 is a left side end view of another embodir r ment fof an adjustable reclining chair, the left vinterconnected* with 'each -other to form* a". 5

hand side frame being omitted,

Fig. 4 is partly a front elevational view and partly a. sectional View of the adjustable reclining chair shown in Fig. 3, taken on line -d of Fig. 3,

Fig. 5 is a side elevational view of still another o embodiment of an adjustable reclining chair,

Fig. .6 is a front elevational view of the reclining chair shown in Fig. 5, the leg-rest being partly. broken away, and

Fig. 'I-is a fragmentary perspective view of the reclining chair shown in Fig. 5.

Referring now to Figs.. 1 and 2, I indicates a back-rest, I2 indicates a-seat, and M indicates a leg-rest of an adjustable reclining chair, which 'has the form of a club chair. The seat I2 extends between the back-rest I and the leg-rest I lIhe front end of the seat I2 is pivoted tothe upper end of the leg-rest at I6, the rear end of the soot az is pivoted to the bock-rest lo at is.

- The back-rest l0 has two extensions 20, one on tice, we provide an .adjustable reclininglchairafg each side of the chair, which extend downwardly beyond the pivot point I8 between the back-rest Alll and the seat I2. Said extensions are integral with the back-rest. On each side of the "chair, the rear end of a connecting ,link 22 is link, said connecting ilinlrl `extending between :a .r

lower. point of said extension andan intermedi-:f: ate point of said leg-rest and .being pivoted there-'i` to, said seat,1the .upper portion -of` the yleg-rest between. said upper pointand said-intermediate 'i I' point, said connectingrglinkfand'said extension:

forming a; polygonal structure, havingy unequal; sides, one-point of lsaid polygonal structure being pivoted `toV said support, and `cooperating cam meansiand sliding means arrangedfon the Asup-.y

port andon the.connectingzlinkrgrfe 1. The above;mentioned. objects and advantages-2 aswell -as other objects and advantageswillbe more `:disclosed ,the-:following 'Speciiication reference being'.` had tothe accompanying drawings formingipa'rt off/'this .specification in trigo-1 isaleft reclining lthair,` i the :left `h omittedpfl Figi 2 :fisapartly affrontelevational iviewi and partly a'sectional view'fofthefadjustablereclin ing. chair, taken. on. line'-2`-21of-'IIlg.1-1,

yli

hingedto one of the extensions 28 at 24, and the front end of each link 22 is pivotally connected with an` intermediate point of the leg-rest I6 at y 2. Theextension 20 of the back-rest I0, the 'seatfl2g the upper portion of the leg-rest I6 and theconnecting link 22 forma polygonal structure having unequal sides, the shortest side being the upper portion ofthe leg-rest between the pivots Itand 25.

The chair has two side frames 26, which are connected with each other by means of two

transverse members

28 and 30. The

structure

26, 28, ll'forms the support of the chair. The side frames T26 `may be covered with a layer 32 of a 4*suitable covering material, `such as fabric, leather orthe: like. The upper edges of the side frames 26 form the arm-rests of the chair.

Onepoint of the polygonal structure I2, I4, 22," 20 is pivoted to the

support

26, 28, 38. In the embodiments'shown in Figs. 1 and 2, thispointisrcoaxialwith the .pivot point I8 between the back-rest I8 .and the seat I2. The bolt I8 is screwedinto the side frame 26 and passes through holesin theback-rest and seat, so that the latter "'mayro'tate about'the bolt I8. i

.morder-,to obtain venous positions of the members of 'the polygonal structure swingably mounted at I8, the movement of the members of said polygonal structure must be controlled. For this purpose, we provide cooperating sliding means on the support and on the connecting link. Each side frame 28 of the chair shown in Figs. 1 and 2 has acurved slot 34, and each connecting link 22 has a lug 36' provided with a hole. A cross-bar 38 passing through said holes is connected with the links 22, and the ends of said cross-bar 38 are in slidable `engagement with said slots 34. If the user of the chair moves 'the back-rest I8 to the left (as seen in Fig. 1),

viously, the extension 288 rigidly connected to vthe back-rest I8 is an equivalent of the extension 20 being integral with the back-rest I8 shown in Figs. l to 4. While the chair shown in Figs. 5 to 7 has only a single connecting lilik 22 pivotally connected to the middle of the leg-rest'.l4. the chair could be provided with two connecting links 22, one on each side of the chair as shown in the embodiment of the chair illustrated in Fig. 3. In such a case, the extensions 2'88 could be of straight form. The cam-like recess 48 of about the pivot| I8 and is lowered. The sitting position of the polygonal structure is shown in full lines, the extreme reclining position is shown in dash lines. 'If the movable parts of the chair are in sitting position, the cross-bar 38 abuts against the lower end of the slot 34, and if the movable parts of the chair are in the extreme reciining position, the cross-bar 38 abuts against the upper.end of the slot 34, so that the latter forms the stops for the extreme positions of the polygonal structure. v

As will be apparent from the above description and drawings, the arrangement of the cooperating cam means and sliding means on the support and the link 22 being below the seat I2 permits the application of the load to the support at -the lowest possible point. The slots 34 are covered by the covering layer 32 on the outside of the side frames, so that the construction of the cam means and sliding means is invisible and the reclining chair has the appearance of a usual club chair.

A Figs. 3 and 4 illustrate another embodiment of -our reclining chair. Similarly to the embcdiment shown in Figs. 1 and 2, the support comprises the

elements

26, 28 and 38, and the polygonal structure comprises the elements I2, I4, 22 and'28 and is pivoted to the support at I8.

'Ihe cooperating cam means and sliding means,A however, are ofsomewhat difierent form. 'Ihe links2'2 have a recess 48 forming a sliding cam surface, which rests on a cross-rod 42 the ends of which being secured to the side frames 26. If the back-rest I8 is lowered, the surface of the recess 48 slides on the cross rod 42 serving to guide the link 22 for upward swinging movement. The upper end of the recess l48 forms a stop for the sitting position of thevpolygonal structure, and the lower end of the recess 48 forms a stop for the extreme reclining position, whenit abuis against the cross-rod 42.

Figs. 5 to 7 illustrate a further embodiment of the reclining chair, in whichthe support 268 is formed ofv tubular material. The polygonal,

the link 22 shown in Figs. 5 to 7 is in slidable engagement with thecross-rod 42 secured to the bars 4G forming a part of the support.

Furthermore, Figs. 5 to 7 show, -that the pivot I8 between the back-rest I8 and the seat I2 is not necessarily used for the pivotal connection between the polygonal structure and the support. According to Figs. 5 to '7, the polygonal structure is pivoted to the support by means 'of separate pivots |88 secured to the seat I2 on each side of the chair. Said pivots are rotatably mounted in lugs 48 secured to rods 58 forming a. part of the support.

While we have shown only certain embodiments of a reclining chair, we do not wish that the invention be limited to said embodiments only. For example, the cam-like surface of the recess 48 or the slot 34 may Ihave any other shape as may be required by the proportions of the elements of the polygonal structure. Furthermore, the recess 48 may be replaced by a cam attached to the link 22. Moreover, each link 22 may be provided with separate and independent rollers instead of a single cross-bar 38 connected to both lines, and said rollers or said croSS- bar may be in slidable engagement with a curved or straight bar instead of a slot 34. Furthermore,fthe extension 28 shown in Figs. 1 to 4 vmay be replaced by a separate element rigidly secured tothe back-rest, or a single connecting bodiments shown in the drawings, the extension l back-rest and an upper point of said leg-rest 28 and the extension 288 are substantially in alignment with the back-rest. If desired, however, the extension 28 and the extension 288 could be arranged at an angle to the back-rest. Furthermore, separate stops could be arranged in the chair for limiting the end positions of the polygonal structure. Moreover, the chairs may be equipped with a locking device, by means of which the user of the chair may lock the movable parts of the chair in any desired position.

' We have described preferred embodiments of our invention, but it is clear that numerous changes and omissions may be made without departing from the spirit of our invention.

What we claim is:

1. An adjustable reclining chair comprising: a. support; a back-rest; a seat; a leg-rest; said seat extending between a lower point of said and being pivoted thereto; said back-rest having at least one lower extension. extending downwardly beyond the pivot point between the backrest and the seat; at least one connecting link; said connecting link extending between a lower point of said extension and an intermediate .point of said leg-rest and being pivotedl thereto; said seat, the upper portion of the leg-rest between said upper and said intermediate point, said connecting link and said extension forming a polygonal structure having unedual sides; one point of said polygonal structure being pivoted to said support; and cooperating cam means and sliding means arranged on the support and on the connecting link.

2. An adjustable reclining chair as claimed in claim 1, in which said extension is an integral,

part of the back-rest.

3. An adjustable reclining chair comprising: a support; a back-rest; a seat; a leg-rest; said seat extending between a lower point of saidback-rest and an upper poinilof said leg-rest and being pivoted thereto; said back-rest having at least one lower extension extending downwardly beyond the pivot point between the backrest and the seat; at least one connecting link; said connecting link extending between a lower point of said extension and an intermediate point of said leg-rest and being pivoted thereto; said .3 'being provided with, a slot, and said cross-bar being in. slidable engagement with said slots.

6.\An adjustable reclining chaircomprising: a support; a back-rest; a seat; a leg-rest; said seat, extending between a'` lower point oi said back-rest and an upper point of said leg-rest and being pivoted thereto; said back-rest having at -least one lower extension extending downwardly beyond the pivot-point between the backrest and the seat; at least one connecting link; said connecting link extending between a lower pointof said extension and an intermediate point of said leg-rest and being pivoted thereto; said seat,y the upper portion of the legrest between seat, the upper portion of the leg-rest between the chair, and' slidingV means associatedwith each of said connecting links, each of said' side frames being provided with a slot, and said sliding means being in cooperative engagement with said slots.

5. An adjustable reclining chair as claimed in claim 3, said support having two side frames',

Aone side frame on each side of the polygonal structure, two connecting links one at each side of the chair, and a cross-bar associated with '45 said connecting links, each o! said side frames said upper and said intermediate point, said connecting link and said extension forming a polygonal structure having unequal sides; one point of said polygonal structure spaced from the pivot point between the back-rest and the seat being pivoted to said support; and cooperating cam means and sliding means arranged on the support and on the connecting link.

7. An adjustable reclining chair comprising: a support; a back-rest; a seat; a 1egrest; said seat extending between a lower point of said back-rest and an upper point of said leg-rest and being pivoted thereto; said back-rest having at least one lower extension extending downwardly beyond the pivot point between the backrest and the seat; at least one connecting link; said connecting link extending between a lower point of said extension and an intermediate point of said leg-rest and being pivoted thereto; said seat, the upper portion of the leg-rest between said upper and said intermediate point, said connecting link and-said extension forming a polygonal structure having unequal sides; one point of said polygonal structure being pivoted to said support; Va sliding cam surface on said' connecting link; and means for guiding the connecting link for upward swinging movement as the back-rest is lowered, said means being mounted on said support and being in cooperative engagement with said sliding .cam surface on the connecting link.

HANS LUCKHARDT.- l ANTON LORENZ.