IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0981185
(2010-12-29)
|
등록번호 |
US-8308228
(2012-11-13)
|
발명자
/ 주소 |
- Lawson, Gregory M.
- Bryant, Jason Allan
|
출원인 / 주소 |
- L & P Property Management Company
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
10 인용 특허 :
10 |
초록
▼
A seating unit that includes a linkage mechanism adapted to move the seating unit between seat-lift, closed, extended, reclined, and seat-lift positions is provided. The linkage mechanism includes a seat-mounting plate mounted to a footrest assembly, a base plate fixedly mounted to a lift assembly,
A seating unit that includes a linkage mechanism adapted to move the seating unit between seat-lift, closed, extended, reclined, and seat-lift positions is provided. The linkage mechanism includes a seat-mounting plate mounted to a footrest assembly, a base plate fixedly mounted to a lift assembly, a back-mounting link rotatably coupled to the seat-mounting plate, a seat-adjustment assembly with a bellcrank, and a linear actuator for automating adjustment of the linkage mechanism. In operation, a stroke in a first phase of the linear actuator generates a force on the bellcrank that translates the seat-mounting plate rearward in a consistent angle of inclination and rotates the back-mounting link from a reclined to an upright orientation. A stroke in a second phase acts to collapse the footrest assembly. A stroke in a third phase causes the lift assembly to raise and tilt the seating unit, thereby accommodating egress and ingress of an occupant.
대표청구항
▼
1. A seating unit having a chassis, a seat, a backrest, and at least one foot-support ottoman, the seating unit being adapted to move between a closed, an extended, a reclined, and a seat-lift position, the seating unit comprising: a pair of base plates in substantially parallel-spaced relation;a pa
1. A seating unit having a chassis, a seat, a backrest, and at least one foot-support ottoman, the seating unit being adapted to move between a closed, an extended, a reclined, and a seat-lift position, the seating unit comprising: a pair of base plates in substantially parallel-spaced relation;a pair of lift assemblies, wherein each of the lift assemblies is attached to a respective base plate and raises and lowers the respective base plate above an underlying surface;a pair of seat-mounting plates in substantially parallel-spaced relation, wherein the seat-mounting plates translatably carry the seat over the lift assemblies; anda pair of generally mirror-image linkage mechanisms each moveably interconnecting each of the base plates to a respective seat-mounting plate, wherein each of the linkage mechanisms comprise: (a) a footrest assembly that extends and retracts the at least one foot-support ottoman; and(b) a seat-adjustment assembly that reclines and inclines the backrest;a linear actuator that provides automated adjustment of the seating unit between the closed position, the extended position, the reclined position, and the seat-lift position, wherein the linear actuator comprises: (a) a motor mechanism;(b) a track operably coupled to the motor mechanism; and(c) a motor activator block that translates longitudinally along the track under automated control,wherein the linear-actuator adjustment is sequenced into a first phase, a second phase, and a third phase that are mutually exclusive in stroke,wherein the first phase moves the footrest assembly between the reclined position and the extended position,wherein the second phase moves the seat-adjustment assembly between the extended position and the closed position; andwherein the third phase moves the pair of lift assemblies into and out of the seat-lift position while maintaining the pair of linkage mechanisms in the closed position; anda front motor bracket that spans between and couples to the pair of linkage mechanisms,wherein the front motor bracket has a pair of ends, andwherein the motor activator block is fixedly coupled to a section between the pair of ends of the front motor bracket. 2. The seating unit of claim 1, wherein the track includes a first travel section, a second travel section, and a third travel section. 3. The seating unit of claim 2, wherein one of the ends of the front motor bracket is fixedly coupled to a motor swing bracket within the seat-adjustment assembly, and wherein the motor swing bracket is rotatably coupled to a rearward portion of a lift carrier plate within a respective lift assembly. 4. The seating unit of claim 3, further comprising a support assembly that spans between and couples to the pair of lift assemblies, wherein a housing of the motor mechanism is pivotably coupled to a rear lateral member of the support assembly. 5. The seating unit of claim 4, wherein the first phase involves longitudinal translation of the motor activator block along the first travel section that creates a lateral thrust at the front motor bracket, thereby invoking first-phase movement of the motor swing bracket, the first-phase movement of the motor swing bracket controls adjustment of the seat-adjustment assembly between the reclined position and the extended position. 6. The seating unit of claim 5, wherein, during the stroke of the linear actuator within the first phase, the motor activator block moves forward and upward with respect to the support assembly while the motor mechanism remains generally fixed in space. 7. The seating unit of claim 6, wherein the seat-adjustment assembly comprises: the motor swing bracket that includes a mid portion located between a first end and a second end, wherein the mid portion of the motor swing bracket is rotatably coupled to the lift carrier plate, and wherein the first end of the motor swing bracket is pivotably coupled to a respective end of the front motor bracket;a motor drive link that includes a front end and a back end, wherein the second end of the motor swing bracket is pivotably coupled to the back end of the motor drive link; anda raise link that includes a mid portion located between an upper end and a lower end, wherein the mid portion of the raise link is pivotably coupled to the front end of the motor drive link, and wherein the lower end of the raise link is rotatably coupled to a forward section of a respective base plate. 8. The seating unit of claim 7, wherein the second phase involves longitudinal translation of the motor activator block along the second travel section that creates a lateral thrust at the front motor bracket, thereby invoking second-phase movement of the motor swing bracket, the second-phase movement of the motor swing bracket controls adjustment of the footrest assembly between the closed position and the extended position, wherein the first-phase movement includes a range of degrees of angular rotation of the motor swing bracket that does not intersect a range of degrees included within the second-phase of movement. 9. The seating unit of claim 8, wherein, during the stroke of the linear actuator within the second phase, the motor activator block moves forward and upward with respect to the support assembly while the motor mechanism remains generally fixed in space. 10. The seating unit of claim 9, wherein each of the lift assemblies further comprise: the lift carrier plate that includes a forward portion and the rearward portion;a lift pivot plate that is attached to a longitudinal member of the support assembly;an upper lift link that is pivotably coupled at one end to the forward portion of the lift carrier plate and is rotatably coupled at another end to the lift pivot plate; anda lower lift link that is pivotably coupled at one end to the forward portion of the lift carrier plate and is rotatably coupled at another end to the lift pivot plate. 11. The seating unit of claim 10, wherein the third phase involves longitudinal translation of the motor activator block along the third travel section that creates a lateral thrust at the front motor bracket, thereby invoking adjustment of the lift assemblies into or out of the seat-lift position while maintaining the pair of linkage mechanisms in the closed position. 12. The seating unit of claim 11, wherein, during the stroke of the linear actuator within the third phase, when adjusting the lift assemblies into the seat-lift position, the motor activator block moves forward and upward with respect to the support assembly while the motor mechanism remains generally fixed in space. 13. A seating unit, comprising: a support assembly that contacts an underlying surface;a pair of base plates in substantially parallel-spaced relation;a pair of lift assemblies, wherein each of the lift assemblies is attached to a respective base plate and moveably supports the respective base plate with respect to the support assembly, wherein the lift assemblies are adapted to adjust the seating unit into and out of a seat-lift position;a pair of seat-mounting plates in substantially parallel-spaced relation, wherein each of the seat-mounting plates is disposed in an inclined orientation in relation to each of the base plates, respectively; anda pair of generally mirror-image linkage mechanisms each moveably interconnecting each of the seat-mounting plates to a respective base plate, and adapted to move the seating unit between a closed position, an extended position, and a reclined position, wherein each of the linkage mechanisms comprise: (a) a back-mounting link rotatably coupled to a respective seat-mounting plate and configured to support a backrest of the seating unit;(b) a rear bellcrank rotatably coupled to a respective seat-mounting plate;(c) a sequence plate rotatably coupled to the rear bellcrank, wherein the sequence plate includes a guide slot;(d) a rear pivot link pivotably coupled to the back-mounting link and to the rear bellcrank; and(e) a sequence element that extends from a respective seat-mounting plate, wherein the sequence element, at least partially, extends into the guide slot, and wherein interaction between the sequence element and the sequence plate resists direct adjustment between the closed position and the reclined position. 14. The seating unit of claim 13, further comprising a rear control link that is pivotably coupled at one end to the rear bellcrank and at another end to a respective base plate. 15. A seating unit having a chassis, a seat, a backrest, and at least one foot-support ottoman, the seating unit being adapted to move between a closed, an extended, a reclined, and a seat-lift position, the seating unit comprising: a pair of base plates in substantially parallel-spaced relation;a pair of lift assemblies, wherein each of the lift assemblies is attached to a respective base plate and raises and lowers the respective base plate above an underlying surface;a pair of seat-mounting plates in substantially parallel-spaced relation, wherein the seat-mounting plates translatably carry the seat over the lift assemblies;a pair of generally mirror-image linkage mechanisms each moveably interconnecting each of the base plates to a respective seat-mounting plate, wherein each of the linkage mechanisms comprise: (a) a footrest assembly that extends and retracts the at least one foot-support ottoman; and(b) a seat-adjustment assembly that reclines and inclines the backrest, wherein the seat-adjustment assembly comprises: (i) a motor swing bracket that includes a mid portion located between a first end and a second end, wherein the mid portion of the motor swing bracket is rotatably coupled to a lift carrier plate within a respective lift assembly, wherein the first end of the motor swing bracket is pivotably coupled to a respective end of a front motor bracket, and wherein the front motor bracket is pivotably coupled to a motor activator block;(ii) a motor drive link that includes a front end and a back end, wherein the second end of the motor swing bracket is pivotably coupled to the back end of the motor drive link; and(iii) a raise link that includes a mid portion located between an upper end and a lower end, wherein the mid portion of the raise link is pivotably coupled to the front end of the motor drive link, and wherein the lower end of the raise link is rotatably coupled to a forward section of a respective base plate; anda linear actuator that provides automated adjustment of the seating unit between the closed position, the extended position, the reclined position, and the seat-lift position, wherein the linear actuator comprises: (a) a motor mechanism;(b) a track operably coupled to the motor mechanism; and(c) the motor activator block that translates longitudinally along the track under automated control,wherein the linear-actuator adjustment is sequenced into a first phase, a second phase, and a third phase that are mutually exclusive in stroke,wherein the first phase moves the footrest assembly between the reclined position and the extended position,wherein the second phase moves the seat-adjustment assembly between the extended position and the closed position; andwherein the third phase moves the pair of lift assemblies into and out of the seat-lift position while maintaining the pair of linkage mechanisms in the closed position. 16. The seating unit of claim 15, wherein the front motor bracket has a pair of ends, wherein one of the ends of the front motor bracket is fixedly coupled to the motor swing bracket within the seat-adjustment assembly. 17. The seating unit of claim 15, further comprising a support assembly that spans between and couples to the pair of lift assemblies, wherein a housing of the motor mechanism is pivotably coupled to a rear lateral member of the support assembly.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.