US3637255A

US3637255A - Mechanism for rocker/reclining chair and for reclining chair

Info

Publication number: US3637255A
Application number: US694985A
Authority: US
Inventors: Frank M Re
Original assignee: Dual Manufacturing and Engineering Inc
Current assignee: Dual Manufacturing and Engineering Inc
Priority date: 1968-01-02
Filing date: 1968-01-02
Publication date: 1972-01-25
Anticipated expiration: 1989-01-25

Abstract

A multipurpose rocker recliner including a base and a chassis and a rocker-spring mechanism and a body-supporting unit and hardware means incorporating first stop means for restraining the body-supporting unit against rocking in positions between intermediate reclined and fully reclined positions and second stop means for restraining the body-supporting unit against tipping in the fully reclined position and third stop means for maintaining the foot stool in retracted position when in the fully upright position and for precluding assumption of a reclined position of the body-supporting unit without a concomitant projection of the foot stool into extended position.

Description

United States Patent Re [451 Jan. 25, 1972 [5 MECHANISM FOR 3,371,959 3/1968 Gordin ..297/2l0 ROCKER/RECLINING CH AIR AND FOR 3,379,473 4/1968 Mizelle ..297/270 RECLENING CHAIR Primary Examiner-James T. McCall 72 Inventor; Frank flol ok Mass Attamey-Kenwood Ross and Chester E. Flavin [73] Assignee: Dual Manufacturing and Engineering, In- 57] ABSTRACT corporated, Holyoke, Mass. A multipurpose rocker recliner including a base and a chassis [221 filed: 1968 and a rocker-spring mechanism and a body-supporting unit [21] APP] NOJ 694,985 and hardware means incorporating first stop means for restraining the body-supporting unit against rocking in positions between intermediate reclined and fully reclined posi- 97/DlG. 7, 2 7/27 tions and second stop means for restraining the body-support- [51] Int. Cl ..A47c 3/03 i it a ainst ti ping in the fully reclined position and third Field of Search 1316- 7 stop means for maintaining the foot stool in retracted position when in the fully upright position and for precluding assump- References Cited tion of a reclined position of the body-supporting unit without UNITED STATES PATENTS figloncomitant projection of the foot stool into extended posi- 3,l63,464 12/1964 Martin et al. ..297/85 3,256,040 6/1966 Mize et al. ..297/310 4 5 3,352,601 11/1967 Cycowicz ..297/270 X PATENTEDJAN25IQ72, 3,837,255

SHEETIOFS INVENTOB. FRANK M.

svmmwjm v f/izm im' I ATTORNEYS.

mmmsm 3.637.255 snmsor INVENTOR, FRANK M. RE

ATTORNEYS.

MECHANISM FOR ROCKER/RECLINING CHAIR AND FOR RECLINING CHAIR BACKGROUND OF THE INVENTION 1. Field of the Invention Rocker/reclining chairs wherein a leg rest or foot stool is moved in concert with movements of a body-supporting unit relative to a fixed chassis.

2. Description of the Prior Art To my knowledge, prior to my invention, there has been no mechanism which can be quickly and easily converted for use either with a rocker/reclining chair or with a reclining chair. Nor has provision been made to completely and positively limit the range and speed of movements of the leg rest and body-supporting components of a chair, either of the rocker/reclining type or of the reclining type.

Too, with the prior art rocker/reclining chairs, no positive means is provided for precluding accidental tipping of the chair while the occupant is in a fully reclining position.

SUMMARY OF THE INVENTION A primary object of the invention is to provide means for precluding accidental tipping of a rocker/reclining chair while it is in a fully reclining position.

A further object is to provide a mechanism which may be quickly, easily and economically converted for use with a rocker/reclining type of chair, or with a reclining type of chair.

Another object is to provide means for completely and positively limiting the range and speed of movement of the leg rest and body-supporting components of a chair, either of the rocker/reclining type or of the reclining type.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view, in longitudinal section, of a rocker/reclining chair embodying the invention, the chair being shown in upright position;

FIG. 2 is an elevational view of the linkage mechanism of the chair of FIG. I, the mechanism being shown in intermediate reclining or TV-position;

FIG. 3 is an elevational view similar to FIG. 2, the mechanism being shown in fully reclining position;

FIG. 4 is a view, in longitudinal section, of a reclining chair embodying the invention, the chair being shown in upright position; and

FIG. 5 is an elevational view of the linkage mechanism of the chair of FIG. 4, the mechanism being shown in fully reclining position.

DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIGS. 1-3, I have shown the invention as incorporated in a rocker/reclining chair; in FIGS. 4 and 5, I have shown the invention as incorporated in a reclining chair.

With reference first to the embodiment of FIGS. 1-3, a combination rocker/reclining chair comprises a chassis fixed to a base 12 supported upwardly of the floor by legs 14, and a body-supporting unit including a seat 16 and a backrest l8 and being rockably supported with respect to the base and the chassis by such as conventional rocker blocks with rocker springs disposed at each side of the chair, or such as a rockerspring mechanism, generally indicated by 20, disposed centrally of the chair.

The body-supporting unit is operatively connected to rocker-spring mechanism 20 by means of a pair of linkage mechanisms, there being one at each side of the body-supporting unit inwardly of the respective adjacent side of the chassis so as to be concealed from view. Only one such linkage mechanism is herein defined, they being identical.

A leg supporting unit or foot stool 30 may be of the one-part type or the two-part type such as shown herein. The two-part type is constituted by a large foot stool 32 and a small foot stool 34 pivotally interconnected. The foot stool, whichever its type, is mounted, by means of said linkage mechanism,

relative to the forward area of seat 16, for movements between a fully retracted position, as viewed in FIG. I, and a fully extended position, as viewed in FIGS. 2 and 3.

With the chair in the fully upright position, the foot stool is in the fully retracted position. Then the large foot stool 32 is positioned substantially flush with or in the vertical plane of the forward end of seat 16, while the cooperant pivotally connected small foot stool 34 extends rearwardly from adjacent the lower extremity of the large foot stool wherefore it is concealed from view below the seat and rearwardly of the large foot stool.

When large foot stool 32 is elevated and advanced to an extended position, cooperant small foot stool 34 is moved therewith accordingly and is in an axially aligned position forwardly thereof, as viewed in FIGS. 2 and 3.

The linkage mechanisms are stationarily mounted as by bolts 35 or the like on a cross rail 36 depending from the bodysupporting unit extending transversely relative to and between and fixed to the upper surface of the rocker-spring mechanism 20, the lower surface of the rocker-spring mechanism being stationarily mounted as by bolts 37 or the like, on a bottom cross rail 39 fastened at its opposite ends to base 12.

A generally horizontally disposed baseplate 38, extending along the front-to-rear chair axis, is stationarily fixed by means of the bolts 35 to the upper planar surface of cross rail 36.

A seat plate 40, similarly extending along the front-to-rear chair axis, is stationarily secured to the adjacent side rail of seat 16 as by screws 42 or the like.

The body-supporting unit and the footstool are operatively connected to baseplate 38 and to each other by means now to be described.

'A first L-link 44 is pivoted at 46 at its approximate midsection to the rearward end of baseplate 38 and at its upper end at 48 to seat plate 40 adjacent the rearward end of the latter.

A rise bar 50 is pivoted adjacent its rearward end at 52 to the approximate midsection of baseplate 38, and is pivoted adjacent its forward end at 54 to a second L-link 56.

Second L-link 56 is pivoted at 58 at its upper end to seat plate 40 and is pivoted at its lower end at 60 to one end of a slotted link 62 and to the rearward end of a first long link 64.

Slotted link 62 is pivoted at 66 at its opposite end to forward end of baseplate 38 and has a slot 68 therein adjacent its forward end in which pivot 60 is slidable, for purposes to appear.

First long link 64 is pivoted at its approximate midsection at 70 to the approximate midsection of a first elevator link 72 and is pivoted at its forward end at 74 to the rearward end of a second elevator link 76.

First elevator link 72 is pivoted at its upper end at 78 to seat plate 40 adjacent the forward end thereof and is pivoted at its lower end at 80 to the lower rearward end of a second long link 82.

Second elevator link 76 is pivoted at its approximate midsection at 84 to the approximate midsection of second long link 82 and is pivoted at its lower end at 86 to the lower rearward end of a small foot stool link 88.

Second long link 82 is pivoted at its forward end at 90 to one end of a large foot stool support plate 92 to which large foot stool 32 is fixed, and large foot stool support plate 92 is pivoted at its opposite end at 94 to a small foot stool support plate 96 to which small foot stool 34 is fixed.

Small foot stool link 82 is pivoted at its forward end at 98 to small foot stool support plate 96 and is pivoted at 100 rearwardly of its forward end to the lower end of a connecting link 102 pivoted at its opposite end at 104 to large foot stool support plate 92.

A tension spring 106 is fixed at one end to slotted link 62 and is fixed at its opposite end to first long link 64, the spring acting much in the manner of a buffing device to control the speed with which the foot stool is extended and to buffer the tilting of the chair as it approaches the fully reclined position and additionally to insure that the foot stool remains retracted when the chair is in the upright position and the occupant is rocking.

The functions of slotted link 62 are three fold: (i) it precludes extension of the foot stool beyond a desired limit as dictated by pivot pin 60 reaching the forward extremity of slot 68; (2) it precludes reclining of the chair without a concomitant extension of the foot stool; and (3) it precludes retraction of the foot stool while the chair is in a fully reclined position.

Any rocking movement of the body-supporting unit, while the chair is in any reclining position, is precluded when a roller [08 provided on the free end of first L-link 44 contacts the upper surface of a bearing block 110 fixed to base 12.

When the chair is in the upright position of FIG. 1, roller 108 is disposed upwardly of the bearing block wherefore the body-supporting unit may be rocked.

When the chair is moved to either of the reclining positions of FIGS. 2 or 3, the roller swings downwardly into contact with the bearing block to preclude rocking.

The upper end of a stop link 112 is fixed as by rivets 114 or the like to the rear end of seat plate 40 and extends downwardly therefrom.

When the chair is in the fully reclining position of FIG. 3, the lower end of stop link 112 contacts the upper surface of bearing block 110, thereby effectively precluding any ac cidental tipping of the chair from such fully reclining position.

A stop pin 116 on seat plate 40, when contacted by a leading edge of second L-iink 56, limits the range of outward movement of the foot stool, while the lower surface of rise bar 50, when it contacts baseplate 38, limits the range of downward movement of the body-supporting unit.

in use, when the chair is moved from an upright, FIG. 1, position to an intermediate reclining, FIG. 2, position, rise bar 50 remains in a generally horizontal position in contact with baseplate 38, roller 108 swings downwardly into contact with bearing block 110 and the large and small foot stools are extended, the speed of such extension being controlled by spring 106, while second L-link 56 contacts stop pin 116 to preclude further foot stool extension.

When the chair is moved from an intermediate reclined, FIG. 2, position, to a fully reclined, FIGv 3,'position, rise bar 50 pivots relatively to baseplate 38; pivot pin 60 moves to the forward extremity of slot 68 in slotted link 62 to preclude closing of the foot stool while in the fully reclined position, and stop link 112 contacts bearing block 110 to preclude accidental tipping of the chair. During this movement from intermediate to fully reclined position, roller 108 remains in contact with the bearing block, merely roliing therealong.

The mechanism just described may be quickly and easily modified for use with a reclining chair without the rocking feature by the simple expedient of repositioning pivot 52, removing stop link 112, and removing the lower roller-bearing end of first L-link 44.

Such a modified linkage is shown in FIGS. 4 and 5, which illustrate a reclining chair without the rocking feature.

Herein, the mechanisms are fixed to a cross rail 136 which extends between, and is fastened at its opposite ends to, the arms of the chair chassis. The pivot 52 has been moved upwardly, the stop link 112 has been removed, and first L-link 44 has been replaced by a straight link 1 44 wherefore the roller 108 is also omitted.

lclaim:

l. A multiple-position rocker/recliner comprising in combination:

A. a base;

B. a rocker-spring mechanism mounted on the base for rocking movement about a transverse rocking axis;

C. a body-supporting unit including a seat and backrest rockably supported between the base by the rockerspring mechanism;

D. hardware means 1. mounting the body-supporting unit with respect to the base a. for two-part reclining movement relative thereto between fully upright and intermediate reclining and fully reclined positions, and

b. for rocking movement with the body-supporting unit about the rocking axis in the fully upright position 2. and including a. means providing a transverse reclining axis about which the body-supporting unit reclines from the fully upright position to intermediate reclined and fully reclined positions b. first stop means i. mounted for movement with the body-supporting unit about the reclining axis, and ii. positioned for engaging the base in the intermediate reclined and fully reclined positions and throughout movement therebetween, and iii. operative, through such engagement, for restraining rocking movement of the body-supporting unit about the rocking axis, and c. second stop means i. mounted for movement with he body supporting unit about the reclining axis, and ii. positioned for confrontation with he base in the fully reclined position, and iii. and operative, through such engagement, for restraining the body-supporting unit against tipping.

2. The rocker/recliner of claim 1 including:

A. a footstool shiftable between a retracted position and an extended position,

B. and in the hardware means i. linkage means for interconnecting the body-supporting unit and the footstool a. for maintaining the foot stool in retracted position when in the fully upright position, and b. for precluding assumption of a reclined position of the body supporting unit without a concomitant projection of the foot stool into extended position.

3. In a chair mechanism selectively adaptable for use in a recliner including a base and a body-supporting unit comprising a seat and a back supported upwardly of the base and a footstool shil'table between retracted and extended positions and for use in a rocker/recliner including a base and a rocker spring mechanism mounted on the base for rocking movement about a transverse rocking axis and a body supporting unit comprising a seat and a back rockably supported relative to the base by the rocker spring mechanism and a footstool shiftable between retracted and extended positions, the improvement comprising:

hardware means mounting the body-supporting unit with respect to the base for two-part reclining movement relative thereto between chair fully upright and chair intermediate reclined and chair fully reclined positions,

means providing a transverse reclining axis about which the body-supporting unit moves between chair fully upright position and chair intermediate reclined and chair fully reclined positions, and

linkage means for interconnecting the body-supporting unit and footstool and maintaining the footstool in retracted position when in the chair fully upright position and for precluding assumption of a chair reclined position of the body-supporting unit without a concomitant projection of the footstooi into extended position.

4. The chair mechanism according to claim 3 for use in a rocker/recliner, including first stop means i. mounted for movement with the body-supporting unit about the reclining axis, and

ii. positioned for engaging the base in the intermediate reclined and fully reclined positions and throughout movement therebetween, and

iii. operative, through such engagement, for restraining rocking movement of the body-supporting unit about the rocking axis, and second stop means i. mounted for movement with the body supporting unit about the reclining axis, and

ii. positioned for confrontation with the base in the fully reclined position, and iii. and operative, through such engagement, for restraining the body-supporting unit against tipping.

Claims

1. A multiple-position rocker/recliner comprising in combination: A. a base; B. a rocker-spring mechanism mounted on the base for rocking movement about a transverse rocking axis; C. a body-supporting unit including a seat and backrest rockably supported between the base by the rocker-spring mechanism; D. hardware means 1. mounting the body-supporting unit with respect to the base a. for two-part reclining movement relative thereto between fully upright and intermediate reclining and fully reclined positions, and b. for rocking movement with the body-supporting unit about the rocking axis in the fully upright position 2. and including a. means providing a transverse reclining axis about which the body-supporting unit reclines from the fully upright position to intermediate reclined and fully reclined positions b. first stop means i. mounted for movement with the body-supporting unit about the reclining axis, and ii. positioned for engaging the base in the intermediate reclined and fully reclined positions and throughout movement therebetween, and iii. operative, through such engagement, for restraining rocking movement of the body-supporting unit about the rocking axis, and c. second stop means i. mounted for movement with the body supporting unit about the reclining axis, and ii. positioned for confrontation with the base in the fully reclined position, and iii. and operative, through such engagement, for restraining the body-supporting unit against tipping.

2. and including a. means providing a transverse reclining axis about which the body-supporting unit reclines from the fully upright position to intermediate reclined and fully reclined positions b. first stop means i. mounted for movement with the body-supporting unit about the reclining axis, and ii. positioned for engaging the base in the intermediate reclined and fully reclined positions and throughout movement therebetween, and iii. operative, through such engagement, for restraining rocking movement of the body-supporting unit about the rocking axis, and c. second stop means i. mounted for movement with the body supporting unit about the reclining axis, and ii. positioned for confrontation with the base in the fully reclined position, and iii. and operative, through such engagement, for restraining the body-supporting unit against tipping.

2. The rocker/recliner of claim 1 including: A. a footstool shiftable between a retracted position and an extended position, B. and in the hardware means

3. In a chair mechanism selectively adaptable for use in a recliner including a base and a body-supporting unit comprising a seat and a back supported upwardly of the base and a footstool shiftable between retracted and extended positions and for use in a rocker/recliner including a base and a rocker spring mechanism mounted on the base for rocking movement about a transverse rocking axis and a body supporting unit comprising a seat and a back rockably supported relative to the base by the rocker spring mechanism and a footstool shiftable between retracted and extended positions, the improvement comprising: hardware means mounting the body-supporting unit with respect to the base for two-part reclining movement relative thereto between chair fully upright and chair intermediate reclined and chair fully reclined positions, means providing a transverse reclining axis about which the body-supporting unit moves between chair fully upright position and chair intermediate reclined and chair fully reclined positions, and linkage means for interconnecting the body-supporting unit and footstool and maintaining the footstool in retracted position when in the chair fully upright position and for precluding assumption of a chair reclined position of the body-supporting unit without a concomitant projection of the footstool into extended position.

4. The chair mechanism according to claim 3 for use in a rocker/recliner, including first stop means i. mounted for movement with the body-supporting unit about the reclining axis, and ii. positioned for engaging the base in the intermediate reclined and fully reclined positions and throughout movement therebetween, and iii. operative, through such engagement, for restraining rocking movement of the body-supporting unit about the rocking axis, and second stop means i. mounted for movement with the body supporting unit about the reclining axis, and ii. positioned for confrontation with the base in the fully reclined position, and iii. and operative, through such engagement, for restraining the body-supporting unit against tipping.