Patent US4226469A successfully refreshed from Google Patents.
US4226469A
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US
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Recliner chair with wall-avoiding action
Assignee: Royal Development Co Inc
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Filing: 1979-01-23
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Granted: 1980-10-07
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Expires: 1999-01-23
Abstract
Abstract A handle-operated recliner chair has a seat mounting linkage consisting of two mounting links mounting the seat directly to a stationary base for movement between normal and reclining positions. A footrest is mounted to the front of the seat by a footrest linkage which is extended and retracted through means of a handle mounted relative to the seat to rotate a torque tube which is connected to the footrest linkage to operate the same. One of the links of the footrest linkage is directly connected to the front mounting link of the seat such that extension of the footrest will cause the seat mounting links to pivot forwardly to not only place the seat in an inclined position but also, to move the seat forwardly relative to the base to provide wall-avoiding action which comes in to play when the backrest is reclined to avoid striking a nearby wall with the backrest. The backrest may be either fixed rigidly to the seat to move together with the seat as a unit to provide a "one-way" recliner or as an alternative, it may be mounted by means of a novel backrest linkage to the seat to move relative to the seat to provide a "three-way" recliner chair. In either instance, the backrest linkage is totally independent of the seat mounting linkage and the footrest linkage.
Inventors
- 👤 Walter C. Rogers, Jr.
- 👤 David S. Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:33
CPC Classifications
A; A47; A47C; A47C1/00; A47C1/02; A47C1/031; A47C1/034; A47C1/035; A47C1/0355
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
229 words
In a recliner chair having a seat, a base, front and rear seat mounting links both pivotally connected to the base and both pivotally connected to the seat to mount the seat for movement relative to the base between normal and reclining positions, a footrest, a footrest linkage mounting the footrest to the seat for movement between a retracted position adjacent the seat and an extended position projected forwardly from the seat, the footrest linkage including a footrest mounting link having one end pivotally connected to the seat, and manual means for actuating the footrest linkage to move the footrest between the extended and retracted positions thereof, the manual actuating means including linkage connected to the footrest linkage for operating the same between said positions thereof; the improvement comprising an extension of said front seat mounting link projecting above the pivotal connection of the front seat mounting link to the seat, and a seat actuating link having one end portion pivotally connected to said footrest mounting link and having an opposite end portion pivotally connected to said extension of said front seat mounting link such that when the footrest is moved to the extended position, said seat actuating link will pivot said front mounting link about its pivotal connection to the base to move the seat forwardly relative to the base into an inclined position forwardly of the base.
Claim 2
Dependent Claim
229 words
In a recliner chair having a seat, a base, front and rear seat mounting links both pivotally connected to the base and both pivotally connected to the seat to mount the seat for movement relative to the base between normal and reclining positions, a footrest, a footrest linkage mounting the footrest to the seat for movement between a retracted position adjacent the seat and an extended position projected forwardly from the seat, the footrest linkage including a footrest mounting link having one end pivotally connected to the seat, and manual means for actuating the footrest linkage to move the footrest between the extended and retracted positions thereof, the manual actuating means including linkage connected to the footrest linkage for operating the same between said positions thereof; the improvement comprising an extension of said front seat mounting link projecting above the pivotal connection of the front seat mounting link to the seat, and a seat actuating link having one end portion pivotally connected to said footrest mounting link and having an opposite end portion pivotally connected to said extension of said front seat mounting link such that when the footrest is moved to the extended position, said seat actuating link will pivot said front mounting link about its pivotal connection to the base to move the seat forwardly relative to the base into an inclined position forwardly of the base.
Claim 3
Dependent Claim
32 words
The recliner chair defined in claim 1 wherein said seat actuating link is pivotally connected to said footrest mounting link adjacent the pivotal connection of the footrest mounting link to the seat.
Claim 4
Dependent Claim
148 words
The recliner chair defined in claim 1 wherein there is further included a backrest and backrest linkage means pivotally mounting the backrest to the seat for movement between a generally upright position and a reclined position, said backrest linkage means including a first backrest link fixed to the backrest, a second backrest link fixed to the seat and pivotally connected to the first backrest link, a knuckle linkage interconnecting the first and second backrest links and movable between an extended position when the backrest is in the generally upright position and a retracted folded position when the backrest is reclined relative to the seat, and spring means biasing the knuckle linkage into its extended position but permitting the knuckle linkage to be moved into said retracted position thereof when sufficient pressure is exerted against the backrest to move the backrest into a reclining position relative to the seat.
Claim 5
Dependent Claim
33 words
The chair defined in claim 3, further including stop means fixed to the seat and engageable with spaced portions of the knuckle linkage for defining extended and folded positions of the knuckle linkage.
Claim 6
Dependent Claim
44 words
The recliner chair defined in claim 4 wherein said knuckle linkage includes a first link pivotally connected to the first backrest link, a second link pivotally connected to the second backrest link, said first and second knuckle links being pivotally connected to each other.
Claim 7
Dependent Claim
52 words
The recliner chair defined in claim 5 wherein said second link of the knuckle linkage has a portion projecting below the point of its pivotal connection to the seat and wherein said spring means is connected at one end to said last defined portion of the second link of the knuckle linkage.
Claim 8
Dependent Claim
204 words
In a recliner chair having a base, a seat, a seat linkage mounting the seat relative to the base, a backrest, and backrest linkage pivotally mounting the backrest to the seat for movement between a normal generally upright position and a plurality of reclined positions; the improvement wherein said backrest linkage includes a first backrest link fixed to the backrest, a second backrest link fixed to the seat, said first and second backrest links being pivotally connected to each other, a knuckle linkage pivotally interconnecting said first and second backrest links for movement between an extended position when the backrest is in the normal generally upright position and a retracted folded position when the backrest is in a reclined position, and spring means biasing said knuckle linkage to said extended position thereof but permitting said knuckle linkage to move to a retracted position when sufficient pressure is exerted on the backrest, permitting the backrest to move into a reclined position relative to the seat, and wherein said knuckle linkage includes a first knuckle link pivotally connected to the first backrest link, a second knuckle link pivotally connected to the second backrest link, said first and second knuckle links being pivotally connected to each other.
Claim 9
Dependent Claim
204 words
In a recliner chair having a base, a seat, a seat linkage mounting the seat relative to the base, a backrest, and backrest linkage pivotally mounting the backrest to the seat for movement between a normal generally upright position and a plurality of reclined positions; the improvement wherein said backrest linkage includes a first backrest link fixed to the backrest, a second backrest link fixed to the seat, said first and second backrest links being pivotally connected to each other, a knuckle linkage pivotally interconnecting said first and second backrest links for movement between an extended position when the backrest is in the normal generally upright position and a retracted folded position when the backrest is in a reclined position, and spring means biasing said knuckle linkage to said extended position thereof but permitting said knuckle linkage to move to a retracted position when sufficient pressure is exerted on the backrest, permitting the backrest to move into a reclined position relative to the seat, and wherein said knuckle linkage includes a first knuckle link pivotally connected to the first backrest link, a second knuckle link pivotally connected to the second backrest link, said first and second knuckle links being pivotally connected to each other.
Claim 10
Dependent Claim
33 words
The chair defined in claim 7, further including stop means fixed to the seat and engageable with spaced portions of the knuckle linkage for defining extended and folded positions of the knuckle linkage.
Claim 11
Dependent Claim
45 words
The recliner chair defined in claim 7 wherein said second knuckle link has a portion projecting below its pivotal connection to the second backrest link and wherein said spring means is connected at one end to said last defined portion of the second knuckle link.
Claim 12
Dependent Claim
35 words
The recliner chair defined in claim 9 further including stop means fixed to the seat and engageable with spaced portions of said second knuckle link for defining extended and folded positions of the knuckle linkage.
Claim 13
Dependent Claim
236 words
A backrest linkage for use in pivotally mounting a backrest to a seat in a reclining chair enabling the backrest to be moved between a normal generally upright position and a plurality of reclined positions extending at an angle relative to the seat; the backrest linkage comprising first and second backrest links adapted to be fixed to a backrest and a seat of an associated recliner chair, said backrest links being pivotally connected to each other, a knuckle linkage pivotally interconnecting said first and second backrest links and being movable between an extended position when the backrest of an associated chair is in a generally upright position and a retracted folded position when the backrest of the associated chair is in a reclined position, and spring means having one end fixed to the second backrest link and another end connected to the knuckle linkage for biasing the knuckle linkage into said extended position thereof but permitting the knuckle linkage to be moved to a retracted folded position when the first backrest link is pivoted relative to the second backrest link upon application of pressure to an associated backrest to which the first backrest link is adopted to be fixed, and wherein said knuckle linkage includes a first knuckle link pivotally connected to the first backrest link, a second knuckle link pivotally connected to the second backrest link, said first and second knuckle links being pivotally interconnected.
Claim 14
Dependent Claim
236 words
A backrest linkage for use in pivotally mounting a backrest to a seat in a reclining chair enabling the backrest to be moved between a normal generally upright position and a plurality of reclined positions extending at an angle relative to the seat; the backrest linkage comprising first and second backrest links adapted to be fixed to a backrest and a seat of an associated recliner chair, said backrest links being pivotally connected to each other, a knuckle linkage pivotally interconnecting said first and second backrest links and being movable between an extended position when the backrest of an associated chair is in a generally upright position and a retracted folded position when the backrest of the associated chair is in a reclined position, and spring means having one end fixed to the second backrest link and another end connected to the knuckle linkage for biasing the knuckle linkage into said extended position thereof but permitting the knuckle linkage to be moved to a retracted folded position when the first backrest link is pivoted relative to the second backrest link upon application of pressure to an associated backrest to which the first backrest link is adopted to be fixed, and wherein said knuckle linkage includes a first knuckle link pivotally connected to the first backrest link, a second knuckle link pivotally connected to the second backrest link, said first and second knuckle links being pivotally interconnected.
Claim 15
Dependent Claim
39 words
The backrest linkage defined in claim 11 wherein said spring means is connected at one end to said second knuckle link at a point spaced from the pivotal connection of the second knuckle link to the second backrest link.
Claim 16
Dependent Claim
46 words
The backrest linkage defined in claim 12 further including a stop fixed to the second backrest link and being engageable with spaced portions along the second knuckle link for defining the extended position of the knuckle linkage and a retracted folded position of the knuckle linkage.
Claim 17
Dependent Claim
48 words
The backrest linkage defined in claim 13 wherein said second knuckle link includes a spring mounting lug and adjusting means for adjusting the position of the spring mounting lug along the second knuckle link, said spring means being connected at said one end thereof to said mounting lug.
Claim 18
Dependent Claim
29 words
The backrest linkage defined in claim 14 wherein said adjusting means includes a screw mounted in said second knuckle link and wherein said lug has threads receiving said screw.
Claim 19
Dependent Claim
17 words
The backrest mounting linkage defined in claim 14 wherein said spring means is a tension coil spring.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-07 | 1984-04-07 | 1984-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-07 | 1988-04-07 | 1988-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-07 | 1992-04-07 | 1992-10-07 | $7700.00 | Window Closed / Lapsed |