A unifoldable reclining chair design has a collapsible articulated frame and includes a pair of opposing side assemblies having longitudinally elongated pivotally connected side frame members that are maintained in opposing transversally spaced relation by front and rear collapsible X-shaped connect
A unifoldable reclining chair design has a collapsible articulated frame and includes a pair of opposing side assemblies having longitudinally elongated pivotally connected side frame members that are maintained in opposing transversally spaced relation by front and rear collapsible X-shaped connector assemblies. Slidable pivot connections, or alternatively, pivotal connecting linkages, which join the rear connector assembly to associated side frame members, enable all of the frame members to move substantially in unison and in multiple directions relative to each other while simultaneously undergoing multiple changes in an angular position relative to each other to move the chair frame from a set-up condition for use to a collapsed condition for transportation and/or storage in response to a single folding action. The slidable pivot connections and pivotal connecting linkages also enable a chair occupant to change the angular position of the chair back support when seated or reclined in the set-up chair.
대표청구항▼
1. A unifoldable reclining chair comprising: an articulated frame defining a back support and a seat support, wherein said frame has a set-up condition and a collapsed condition, and wherein in said set-up condition, the back support is adapted to be angularly adjusted between at least two reclined
1. A unifoldable reclining chair comprising: an articulated frame defining a back support and a seat support, wherein said frame has a set-up condition and a collapsed condition, and wherein in said set-up condition, the back support is adapted to be angularly adjusted between at least two reclined positions relative to the seat support;a flexible seat panel mounted on the seat support of the frame, said flexible seat panel defining a generally taut chair seat when same frame is in its set-up condition; anda flexible backrest panel mounted on the back support of the frame, said flexible backrest panel defining a generally taut chair backrest when said frame is in its set-up condition;wherein said frame comprises a pair of side frame assemblies of opposite hand disposed in generally parallelly extending and transversely spaced apart opposing relation to each other in the set-up condition of said chair, each said side frame assembly having a plurality of generally axially elongated frame members being interconnected for pivotal movement relative to one another about generally transversely extending pivot axes, said frame members including: a front leg member;a rear leg member;a seat support member defining a respective side of the seat support;a back support member defining a respective side of the back support; andan armrest;wherein said frame further comprises generally transversely extending front and rear connector assemblies extending between and pivotally connected to said side frame assemblies for transversely moving said side frame assemblies towards and away from each other during collapsing or set-up of the chair frame;wherein each lower end of the rear connector assembly is movably attached to a respective one of the rear leg members of the frame for movement between first and second positions spaced apart along the respective rear leg member, said positions corresponding to respective first and second reclined positions of the back support relative to the seat support;wherein said chair in its collapsed condition forms a bundle with all of the frame members and the front and rear connector assemblies gathered together from the set-up condition and having generally common directions of extent; andwherein said chair is folded from its set-up condition to its collapsed condition with a single folding action. 2. The unifoldable reclining chair according to claim 1, wherein the front and rear connector assemblies each comprises a pair of axially elongated frame connectors generally centrally joined each to the other for limited pivotal movement about a pivot axis between a generally X-shaped condition associated with the set-up condition of the chair and a generally parallel condition associated with the collapsed condition of the chair. 3. The unifoldable reclining chair according to claim 2, wherein an upper terminal end of each rear frame connector is pivotally attached to a respective back support member of the chair frame, and a lower terminal end of each rear frame connector is pivotally attached to a respective rear leg member of the chair frame. 4. The unifoldable reclining chair according to claim 3, wherein the lower terminal end of each rear frame connector is slidably and pivotally attached to a respective rear leg member by a guide rail assembly including a guide rail having a longitudinal slot disposed therein, and a slide disposed within the slot for movement along the length of the guide rail, wherein the lower terminal end of the rear frame connector is pivotally attached to the slide. 5. The unifoldable reclining chair according to claim 3, wherein the lower terminal end of each rear frame connector is pivotally attached to a respective rear leg member by a pivotal linkage connected between the lower terminal end of the rear frame connector and the respective rear leg member. 6. The unifoldable reclining chair according to claim 3, wherein the lower terminal end of each rear frame connector is slidably attached to a respective rear leg member by a sleeve mounted on the rear leg member for movement therealong, wherein the lower terminal end of the rear frame connector is pivotally attached to the sleeve. 7. The unifoldable reclining chair according to claim 1, wherein a lower terminal end of the rear connector assembly is movable to a plurality of intermediate positions between the first and second positions, whereby each intermediate position is associated with a reclined position of the back support relative to the seat support. 8. The unifoldable reclining chair according to claim 1, wherein the rear leg member and the seat support member are integrally formed to define a single generally axially elongated member, whereby the rear leg portion and the seat support portion of said integral member are connected by an intermediate bend. 9. A unifoldable reclining chair comprising: an articulated foldable frame;a flexible seat material mounted on said frame;a flexible back material mounted on said frame;said frame being adapted to rest on a generally horizontally oriented supporting surface in a set-up condition with said flexible seat material defining a generally taut chair seat support and said flexible back material defining a generally taut chair back support for collectively accommodating an upright seated or reclined chair occupant;said frame having a pair of side frame assemblies of opposite hand disposed in generally parallelly extending and transversely spaced apart opposing relation to each other in said set-up condition, each of said side frame assemblies having a plurality of generally axially elongated side frame members, said side frame members of each of said assemblies being disposed within generally parallelly extending vertical planes and connected each to another for pivotal movement relative to each other about generally transversely extending pivot axes, said side frame members including front and rear leg members with respective front and rear feet; andsaid frame further having a plurality of connecting assemblies each including generally axially elongated connecting members, said connecting assemblies extending between and movably attached at each end thereof by pivotal connections to said side assemblies and supporting said side assemblies for transverse movement toward each other and away from each other and to said transversally spaced apart condition, each of said connecting assemblies having a lower end thereof that is movably attached to a respective rear leg member for motion therealong between a reclined position and an upright position; andenabling means for requiring both said side members and said connecting members to move substantially in unison and in multiple directions relative to each other, and to undergo multiple changes of angular position relative to each other, in response to a single frame collapsing force applied to a plurality of said frame members to cause said chair frame to move directly from said set-up condition to said collapsed condition in response to a single collapsing action, and for permitting the chair back support of said chair frame to be moved between seated and reclined positions at all times that said chair is in said set-up condition;said chair in said collapsed condition forming a bundle with all of said side members and all of said connecting members having generally common directions of extent with said front and rear leg members substantially parallel each other and all of said front and rear feet closely spaced, and with said seat material and said back material forming part of said bundle and having a flaccid condition. 10. The unifoldable reclining chair as set forth in claim 9, wherein each rear leg has a guide rail assembly mounted thereon, said guide rail assembly comprises a guide rail defining a longitudinal slot and a slide disposed within the slot for movement in one and an opposite direction along the length of the guide rail, wherein a lower terminal end of one of said connecting members is pivotally connected to the slide for movement therewith. 11. The unifoldable reclining chair as set forth in claim 9, wherein each of said connecting members has a slide member pivotally connected to a lower terminal end thereof and is slidably supported on a respective rear leg for movement in one and an opposite direction therealong. 12. The unifoldable reclining chair as set forth in claim 9, wherein said frame includes a link comprising said enabling means and has connecting points at its opposite ends and one of said connecting points is pivotally connected to an associated one of said connecting members and the other of said connecting points is pivotally connected to an associated one of said side frame members. 13. The unifoldable reclining chair as set forth in claim 12, wherein each of said side frame assemblies has a back support member pivotally connected to a respective rear leg for movement between upright seating and reclined seating positions and said enabling means further comprises means for preventing said back support member from bowing inward and in a direction of an opposite side of said chair in response to the weight of said occupant of said chair. 14. The unifoldable reclining chair according to claim 2, further comprising a locking mechanism connected between the frame connectors of the rear connector assembly for releasably retaining the side frame assemblies in said transversally spaced apart condition when locked and thereby preventing said chair from being moved to its collapsed condition, wherein said locking mechanism, when unlocked, permits collapsing of the chair. 15. The unifoldable reclining chair according to claim 14, wherein said locking mechanism comprises a lock bar having a plurality of pivotally connected parts and an operating handle. 16. The unifoldable reclining chair according to claim 9, further comprising a locking mechanism connected between the connecting members of one of the connecting assemblies for releasably retaining the side frame assemblies in said transversally spaced apart condition when locked and thereby preventing said chair from being moved to its collapsed condition, wherein said locking mechanism, when unlocked, permits collapsing of the chair. 17. A unifoldable reclining chair comprising: an articulated frame defining a back support and a seat support, wherein said frame has a set-up condition and a collapsed condition, and wherein in said set-up condition, the back support is adapted to be angularly adjusted between at least two reclined positions relative to the seat support;a flexible seat panel mounted on the seat support of the frame, said flexible seat panel defining a generally taut chair seat when same frame is in its set-up condition; anda flexible backrest panel mounted on the back support of the frame, said flexible backrest panel defining a generally taut chair backrest when said frame is in its set-up condition;wherein said frame comprises a pair of side frame assemblies of opposite hand disposed in generally parallelly extending and transversely spaced apart opposing relation to each other in the set-up condition of said chair, each said side frame assembly having a plurality of generally axially elongated frame members being interconnected for pivotal movement relative to one another about generally transversely extending pivot axes, said frame members including: a front leg member ending at a front foot;a rear leg member ending at a rear foot;a seat support member defining a respective side of the seat support;a back support member defining a respective side of the back support; andan armrest;wherein said frame further comprises generally transversely extending front and rear connector assemblies extending between and pivotally connected to said side frame assemblies for transversely moving said side frame assemblies towards and away from each other during collapsing or set-up of the chair frame;wherein each lower terminal end of the rear connector assembly is movably attached to a respective one of the rear leg members of the frame for movement between first and second positions spaced apart along the respective member, said positions corresponding to respective first and second reclined positions of the back support relative to the seat support;wherein said chair in its collapsed condition forms a bundle with all of the frame members and the front and rear connector assemblies gathered together from the set-up condition with front leg members, rear leg members, and back support members substantially parallel and with all of its front feet and rear feet closely spaced; andwherein said chair is folded from its set-up condition to its collapsed condition with a single folding action. 18. The unifoldable reclining chair according to claim 17, wherein the lower ends of the rear connector assembly are movably attached to the rear leg members for sliding movement. 19. The unifoldable reclining chair according to claim 17, wherein the lower ends of the rear connector assembly are movably attached to the rear leg members for swinging movement.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (22)
Tseng Chuen-Jong,TWX, Chair frame with an adjustable backrest frame.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.