CN107205557A - Seat arrangement with headrest assemblies - Google Patents

Abstract

A kind of seat arrangement is included：Portions component；Backrest module, the backrest module is operatively coupled to portions component；And headrest assemblies, the headrest assemblies are coupled to backrest module.Headrest assemblies are included：Support meanss, the support meanss may be pivotably coupled to backrest module, to be moved pivotally around the first pivotal line；Headrest part, the headrest part may be pivotably coupled to support meanss, to be moved pivotally around the second pivotal line separated with the first pivotal line；And carriage, headrest part is coupled to support meanss by the carriage, to allow along curved path relative to support meanss vertical sliding motion regulation headrest part.

Description

Seat arrangement with headrest assemblies

Technical field

Various embodiments are related to a kind of seat arrangement, and a kind of more particularly to office chairs subgroup comprising headrest assemblies Part, the headrest assemblies have the pivot adjusting means that can be pivoted respectively for a pair and vertical adjustment mechanism.

The content of the invention

In one embodiment, seat arrangement is included：Portions component, the portions component is adapted to support user；Backrest group Part, the backrest module is operatively coupled to portions component and is adapted to support user；And headrest assemblies, the headrest assemblies It is coupled to backrest module.Headrest assemblies are included：Support meanss, the support meanss may be pivotably coupled to backrest module, with around One pivotal line moves pivotally；Rest the head on part, the headrest part may be pivotably coupled to support meanss, with around being separated with the first pivotal line Second pivotal line moves pivotally；And carriage, headrest part is coupled to support meanss by the carriage, to allow along arc Shape path is relative to support meanss vertical sliding motion regulation headrest part.

In another embodiment, headrest assemblies are adapted to be coupled to seat arrangement, and the headrest assemblies are included：Support dress Put, the support meanss are configured to may be pivotably coupled to the backrest module of seat arrangement, to be moved pivotally around the first pivotal line；Head Part is rested the head on, the headrest part may be pivotably coupled to support meanss, to be moved pivotally around the second pivotal line separated with the first pivotal line； And carriage, the carriage makes headrest part be coupled to support meanss, and the carriage is configured to allow for along arc Shape path is relative to support meanss vertical sliding motion regulation headrest part.

In yet another embodiment, seat arrangement is included：Portions component, the portions component is adapted to support user；Backrest Component, the backrest module is operatively coupled to portions component and is adapted to support user；And headrest assemblies, the headrest group Part is coupled to backrest module.The headrest assemblies are included：Support meanss, the support meanss are coupled to backrest module；Headrest part, the head Pillow part has arcuation orbit portion；And carriage, the carriage make the orbit portion of headrest part be slidably coupled to support Device so that cause headrest part along curved path relative to support meanss row relative to support meanss slidable adjustment headrest part Enter.

In yet another embodiment, headrest assemblies are adapted to be coupled to seat arrangement, and the headrest assemblies are included：Support dress Put, the support meanss are operatively configured to be coupled to the backrest module of seat arrangement；Headrest part, the headrest part has arcuation branch Support part；And carriage, the carriage makes the supporting part of headrest part be slidably coupled to support meanss so that relative to Supporting part slidable adjustment headrest part causes headrest part to be advanced along curved path relative to support meanss.

In another embodiment, seat arrangement is included：Portions component, the portions component is adapted to support user；Backrest Component, the backrest module is operatively coupled to portions component and is adapted to support user；And headrest assemblies, the headrest group Part is coupled to backrest module.Headrest assemblies are included：Support meanss, the support meanss may be pivotably coupled to backrest module, with around First pivotal line moves pivotally；Headrest part, the headrest part is configured to support user and may be pivotably coupled to support meanss, with Moved pivotally around the second pivotal line for being separated with the first pivotal line, wherein allow to rest the head on part around the second pivotal line pivot independently of Pivot of the support meanss around the first pivotal line；And coupling device, the coupling device make headrest part be operatively coupled to support Device so that headrest part can be pivoted around with the pivot area that the first pivotal line and the second pivotal line are separated.

In yet another embodiment, headrest assemblies are adapted to be coupled to seat arrangement, and the headrest assemblies are included：Support dress Put, the support meanss are configured to may be pivotably coupled to the backrest module of seat arrangement, to be moved pivotally around the first pivotal line；Head Part is rested the head on, the headrest part may be pivotably coupled to support meanss, to be moved pivotally around the second pivotal line separated with the first pivotal line, Wherein allow rest the head on part around the second pivotal line pivot independently of support meanss around the first pivotal line pivot；And coupling dress Put, the coupling device is configured to make headrest part be operatively coupled to support meanss so that headrest part can around with the first pivot The pivot area that line and the second pivotal line are separated is pivoted.

In yet another embodiment, seat arrangement is included：Portions component, the portions component is adapted to support user；Lean on Component is carried on the back, the backrest module is operatively coupled to portions component and is adapted to support user；And headrest assemblies, the headrest Component is coupled to backrest module.Headrest assemblies are included：Support meanss, the support meanss may be pivotably coupled to backrest module, with Moved pivotally around the first pivotal line, wherein support meanss are located substantially on backrest module when headrest assemblies are located at first position Above, it is located substantially on when headrest assemblies are located at the second place behind backrest module；Headrest part, the headrest part is comprising suitable It is made into the supporting surface of support user and may be pivotably coupled to support meanss, with around the second pivot separated with the first pivotal line Line moves pivotally, before wherein supporting surface is substantially facing when headrest assemblies are located at first position and when headrest assemblies are located at second After being substantially facing during position, and wherein headrest part includes upper limb and lower edge when in said first position；And carriage, The carriage makes headrest part be coupled to support meanss, to allow vertically to adjust headrest part, and its relative to support meanss In when headrest assemblies be in first position when, rest the head on part upper limb close to support meanss, and when headrest assemblies be located at the second place When, the lower edge for part of resting the head on is close to support meanss.

Another embodiment arranges that seat arrangement is included comprising seat：Portions component, the portions component is adapted to support User；Backrest module, the backrest module is operatively coupled to portions component and is adapted to support user；And headrest group Part.Headrest assemblies are included：Headrest part, the headrest part is adapted to support user；Support meanss, the support meanss make headrest assemblies can Backrest module is operatively coupled to so that headrest part can be vertically adjusted relative to backrest module, wherein headrest part and support are filled At least one in putting includes more than first lock pin and more than second lock pin, wherein lock pin in more than first lock pin is by more than second Lock pin skew in individual lock pin；And fastener, when vertically regulation headrest when, the fastener alternately with more than first lock pin With more than second lock pin engagement.

Another embodiment includes headrest assemblies device, and the headrest assemblies device is adapted to be coupled to seat arrangement, the head Pillow assembly apparatus is included：Headrest part, the headrest part is adapted to support user；Support meanss, the support meanss are configured to make headrest Part is operatively coupled to the backrest module of seat arrangement so that can rest the head on part, wherein head relative to backrest module vertical adjusting At least one rested the head in part and support meanss includes more than first lock pin and more than second lock pin, wherein in more than first lock pin Lock pin offsets the lock pin in more than second lock pin；And fastener, when vertically regulation headrest when, the fastener alternately with More than first lock pin and more than second lock pin engagement.

Yet another embodiment arranges that seat arrangement is included comprising seat：Portions supporting construction, the portions supporting construction Include the portions supporting surface for being configured to support the user sat on；Backrest supporting structure, the backrest supporting structure is included：Upwards Extension, the portion of upwardly extending is adapted to move between stand up position and reclined position, controller control part, the controller control part The rear portion of portions supporting construction, and the second end are coupled to, the rear portion of backrest supporting structure is coupled at second end；Back rest supports Face, the back rest supports face generally forward-facing and is configured to support the back of the user taken a seat, and with bottom and is coupled to The top for upwardly extending portion of back rest supports；And backrest connector, the backrest connector is coupled to the bottom in back rest supports face And portions supporting construction is coupled to, wherein when backrest supporting structure retreats position movement from stand up position, backrest connection Part makes back rest supports face be moved forward relative to the portion of upwardly extending of backrest supporting structure.Seat arrangement also includes headrest assemblies, The headrest assemblies are coupled to backrest supporting structure, and the headrest assemblies are included：Support meanss, the support meanss may be pivotably coupled to Backrest module is so as to around the first pivotal line pivoting action；Rest the head on part, the headrest part may be pivotably coupled to support meanss, with around with The second pivotal line that first pivotal line is separated moves pivotally；And carriage, the carriage makes headrest part be coupled to support Device, so as to allow relative to backrest supporting structure vertical sliding motion regulation headrest part.

The feature and advantage of these and other each embodiment will be said by those skilled in the art by reference to following Bright book, claim, and accompanying drawing further understand and recognized.

Brief description of the drawings

Fig. 1 is the front perspective view of an embodiment of chair assembly；

Fig. 2 is the rear view of chair assembly；

Fig. 3 is the side view of chair assembly, and it shows chair assembly in the position of reduction, and elevated position shown in broken lines Put, and show portions component in retracted position and the position of expansion shown in broken lines；

Fig. 4 is the side view of chair assembly, and it shows chair assembly in stand up position, and reclined position shown in broken lines；

Fig. 5 A are the exploded views of portions component；

Fig. 5 B are the enlarged perspectives of chair assembly, and wherein a part for portions component is removed to show spring supporting group Part；

Fig. 6 is the decomposition diagram of portions component；

Fig. 7 is the top perspective of portions component；

Fig. 8 is the bottom perspective view of portions component；

Fig. 9 is the exploded bottom perspective view for covering component and portions component；

Figure 10 is the sectional view for covering component；

Figure 11 is the decomposition diagram of an alternate embodiment of portions component；

Figure 11 A are the decomposition diagrams of another alternate embodiment of portions component；

Figure 12 is the top perspective of the alternate embodiment of portions component；

Figure 13 is the bottom perspective view of the alternate embodiment of portions component；

Figure 14 is the exploded bottom perspective view of the alternate embodiment of portions component；

Figure 15 is the top perspective of the second alternate embodiment of portions component；

Figure 16 is the sectional view of XVI-XVI line of the second alternate embodiment of portions component along Figure 15；

Figure 17 is the sectional view of XVII-XVII line of the second alternate embodiment of portions component along Figure 15；

Figure 18 is the front perspective view of backrest module；

Figure 19 is the side view of backrest module；

Figure 20 A are the exploded front perspective views of backrest module；

Figure 20 B are the exploded rear perspective views of backrest module；

Figure 21 is Figure 20 A region XXI enlarged perspective；

Figure 22 is Fig. 2 region XXII enlarged perspective；

Figure 23 is the sectional view of XXIII-XXIII line of the upper backrest pintle assembly along Figure 18；

Figure 24 A are the exploded rear perspective views of upper backrest pintle assembly；

Figure 24 B are the exploded front perspective views of upper backrest pintle assembly；

Figure 25 is Figure 20 B region XXV enlarged perspective；

Figure 26 A are that a comfortable part and one lean on the enlarged perspective of waist component；

Figure 26 B are comfortable part and the rear view by waist component；

Figure 27 A are the front perspective views of a pawl component；

Figure 27 B are the rear views of pawl component；

Figure 28 is the perspective partial section view along Figure 26 B line XXVIII-XXVIII；

Figure 29 A are the perspective views of backrest module, wherein a part for the comfortable part is cut out；

Figure 29 B are the enlarged perspectives of a part for backrest module；

Figure 30 is the perspective view of the alternate embodiment by waist component；

Figure 31 is the sectional view of backrest module and an exterior trim component；

Figure 32 A-32D are the assembled views step by step of backrest module and exterior trim component；

Figure 33 is Figure 32 A region XXXIII enlarged perspective；

Figure 34 A-34H are a series of back elevational views for the sequential steps that a bitt and a drawstring are fixed thereon；

Figure 35 G and 35H are the alternate orders steps being fixed to drawstring on bitt；

Figure 36 is the exploded view of an alternate embodiment of backrest module；

Figure 37 is the side cross-sectional view of a top section of the alternate embodiment of backrest module；

Figure 38 is the side cross-sectional view of a lateral part of the alternate embodiment of backrest module；

Figure 39 is to maintain the anterior elevational view of part；

Figure 40 is to maintain part in an anterior elevational view that inside is routed up to outer orientation；

Figure 41 is the partial front elevational view for the holding member for being sewn onto set part；

Figure 42 is the perspective view that support seat supporting plate in control input component thereon；

Figure 43 is the perspective view of control input component, and some of which element is removed to show inside it；

Figure 44 is the exploded view of control input component；

Figure 45 is the side view of control input component；

Figure 46 A are the front perspective views of a backrest supporting structure；

Figure 46 B are the decomposition diagrams of backrest supporting structure；

Figure 47 is the side view of chair assembly, and it shows its multiple pivotal point；

Figure 48 is the side perspective view of control assembly, and it shows multiple pivotal points associated therewith；

Figure 49 is the sectional view of chair, and it shows backrest in stand up position, is set wherein being set at a neutrality by waist regulation It is fixed；

Figure 50 is the sectional view of chair, and it shows backrest in stand up position, wherein being set by waist portions to a flat configuration；

Figure 51 is the sectional view of chair, and it shows backrest hypsokinesis, wherein being adjusted to a neutral position by waist；

Figure 52 is in the sectional view of the chair of reclined position, wherein being adjusted to a flat configuration by waist；

Figure 52 A are the sectional views of chair, it shows backrest hypsokinesis, and wherein shell portion is set to maximum arc by waist portions Degree；

Figure 53 is the exploded view of a moment arm displaceable member；

Figure 54 is the cross-sectional perspective view of LIV-LIV line of the moment arm displaceable member along Figure 43；

Figure 55 is the plan view from above of multiple controls connecting rods；

Figure 56 is the exploded view of a controller control component；

Figure 57 A are the side perspective views of control assembly, and wherein moment arm displacement member is in low-tension position, and chair assembly is straight Vertical position；

Figure 57 B are the side perspective views of control assembly, and wherein moment arm displacement member is in low-tension position, and chair assembly is rear Incline position；

Figure 58 A are the side perspective views of control assembly, and wherein moment arm displacement member is in high tension position, and chair assembly is straight Vertical position；

Figure 58 B are the side perspective views of control assembly, and wherein moment arm displacement member is in high tension position, and chair assembly is rear Incline position；

Figure 59 be it is low set with high-tension under moment of torsion it is corresponding after inclination chart；

Figure 60 is the perspective view of a direct drive component, and wherein seat supporting plate is decomposed from it；

Figure 61 is the decomposition diagram for directly driving component；

Figure 62 is the perspective view of a vertical height control assembly；

Figure 63 is the perspective view of vertical height control assembly；

Figure 64 is the side view of vertical height control assembly；

Figure 65 is the cross-sectional perspective view of LXV-LXV line of the first input control assembly along Figure 42；

Figure 66 A are the decomposition diagrams of control input component；

Figure 66 B are the enlarged perspectives of the clutch components of the first control input component；

Figure 66 C are the decomposition diagrams of control input component；

Figure 67 is the side cross-sectional view of LXVII-LXVII line of the variable backrest control assembly along Figure 42；

Figure 68 is the perspective view of an alternate embodiment of the chair assembly for including headrest assemblies；

Figure 69 is the rear view of headrest assemblies；

Figure 70 A are the exploded rear perspective views of headrest assemblies；

Figure 70 B are the exploded rear perspective views of an alternate embodiment of headrest assemblies；

Figure 71 is the exploded view of the component of an alternate embodiment of coupler body；

Figure 72 is the sectional view of LXXII-LXXII line of the headrest assemblies along Figure 69；

Figure 73 is the rear view after component of the fabric is combined with the subframe part of headrest assemblies；

Figure 74 is the sectional view of headrest assemblies；

Figure 75 is the enlarged drawing of headrest assemblies；

Figure 76 is the rear view of headrest assemblies, wherein set is removed；

Figure 77 is the rear view of headrest assemblies, wherein set part and guide are removed；

Figure 78 A-78K are side view of the headrest assemblies in various configurations and orientation；

Figure 79 is the perspective view of another embodiment of a chair assembly；

Figure 80 is the anterior elevational view of an embodiment of Figure 79 chair assembly；

Figure 81 is the first side view of an embodiment of Figure 79 chair assembly；

Figure 82 is the second side view of an embodiment of Figure 79 chair assembly；

Figure 83 is the lateral side view of an embodiment of Figure 79 chair assembly；

Figure 84 is the plan view from above of an embodiment of Figure 79 chair assembly；

Figure 85 is the face upwarding view of an embodiment of Figure 79 chair assembly；

Figure 86 is the perspective view of another embodiment of chair assembly；

Figure 87 is the anterior elevational view of an embodiment of Figure 86 chair assembly；

Figure 88 is the first side view of an embodiment of Figure 86 chair assembly；

Figure 89 is the second side view of an embodiment of Figure 86 chair assembly；

Figure 90 is the lateral side view of an embodiment of Figure 86 chair assembly；

Figure 91 is the plan view from above of an embodiment of Figure 86 chair assembly；And

Figure 92 is the face upwarding view of an embodiment of Figure 86 chair assembly.

Embodiment

For purpose described herein, term " on ", " under ", " right side ", " left side ", " rear ", " preceding ", " vertical ", " level " The embodiment oriented such as Fig. 1 should be related to their derivative words.However, it should be understood that various embodiments can be taken respectively The orientation and sequence of steps substituted is planted, unless clearly there is opposite regulation.It will also be appreciated that be shown in the drawings, and below Specification described in specific equipment and technique, be the exemplary implementation for the inventive concept that appended claim is limited Example.Therefore, the specific dimension related to presently disclosed embodiment and other physical characteristics be not considered as it is restricted, Except being clearly stated in this way in non-claimed.The various elements of presently disclosed embodiment can be described as operable each other Ground is coupled, including element directly or indirectly coupled to each other.In addition, " chair " one word used herein above covers office The various seat arrangements such as chair, car seat, household seat, stadium seat, movie seat.

Reference number 10 (Fig. 1 and 2) generally indicates the embodiment of a chair assembly.In the example in the figures, chair group Part 10 includes the base assembly 12 for abutting the foot wheel of the floor surface 13 of support, the control supported by the base assembly 12 of foot wheel System or support component 14, the portions component 16 each operationally coupled with control assembly 14 and backrest module 18, and a pair Arm component 20.Control assembly 14 (Fig. 3) is operationally coupled with base assembly 12, so that the portions component 16, backrest module 18 Can vertically it be conditioned between the position A reduced completely and the position B risen completely with arm component 20, and around vertical axis 21 are pivoted with direction 22.Portions component 16 is operationally to be coupled with control assembly 14, so that the portions component 16 is relative Can be between fully retracted position C and fully expanded position D by longitudinally adjust in the control assembly 14.Portions component 16 (Fig. 4) With backrest module 18 operationally with control assembly 14 and with it is coupled to each other so that backrest module 18 is can be in a completely erected position Put and moved between the complete reclined position F of E and one, and further make portions component 16 can in a completely erected position G and Moved between one complete reclined position H, it respectively correspond tos the completely erected position E and complete reclined position of backrest module 18 F。

Base assembly 12 includes multiple pedestal arms 24, and it radially extends and is separated by around hollow central post 26, central rods Receive pneumatic linear actuator 28 wherein.Each pedestal arm 24 is supported on the top of floor surface 13 by a related castor assembly 30. Although the base assembly 12 is shown as including a multi-arm pedestal component, indicate here, other suitable supporting constructions can be used, Including but not limited to fixed post, the arrangement of multiway, the seat support component of vehicle, stadium seat arrangement, household seat are pacified Row, the seat arrangement of movie theatre, etc..

Described portions component 16 (Fig. 5 A) includes the seat supporting plate 32 of relative stiffness, and it has leading edge 34, trailing edge 36, And a pair of C-shaped guide rails 38, which defines the lateral margin of seat supporting plate 32 (Fig. 5 B), and prolong between leading edge 34 and trailing edge 36 Stretch.Portions component 16 also includes a pliable resilient seat shell body 40, and it has a pair of retrousse lateral parts 42 and one Individual retrousse rear portion 44, it cooperates to form a shape being generally concaved set up, and a leading edge 45. In the example in the figures, seat housing 40 is made up of relative pliable material such as thermoplastic elastomer (TPE) (TPE).In assembling, seat Position shell body 40 is fixed and is sandwiched between the plastics of seat supporting plate 32 and one, pliable resilient seat disk 46, and seat disk leads to Cross multiple machanical fasteners and be fixed to seat supporting plate 32.Seat disk 46 includes leading edge 48, trailing edge 50, in leading edge 48 and trailing edge The lateral margin 52 extended between 50 and the top surface 54 and basal surface 56 of the shape being generally concaved set up with synthesis one. In example illustrated, seat disk 46 includes the groove 58 of multiple Longitudinal extendings, and it extends forward from trailing edge 50.Groove 58 is mutual in-between It is engaged to limit multiple fingers 60, each finger 60 is individually pliable, elasticity.Seat disk 46 also includes multiple The long hole 62 of transversal orientation, it is located near leading edge 48.Hole 62 works in coordination to increase the whole of seat disk 46 in its region Body mutabililty, and backward part 68 of the front part 64 relative to seat disk 46 of seat disk 46 is more specifically allowed in vertical direction 66 bendings, as discussed further below.Portions component 16 also includes airfoam cushion part 70, and it has upper surface 76, and Rest on the top surface 54 of seat disk 46 and be absorbed in seat shell body 40.Portions component 16 also includes fabric cover for seat 72, It has leading edge 73, trailing edge 75 and one for the lateral margin 77 that extends between leading edge 73 and trailing edge 75.One spring supporting component 78 (Fig. 5 A and 5B) is fixed to portions component 16, and suitable for supporting the front part 64 of seat disk 46 pliablely, with Vertical Square To 66 bendings.In the example in the figures, spring supporting component 78 includes a support housing 80, and it includes foam, and with limit The lateral part 82 of a upwardly recessed arcuate shape is determined.Spring supporting component 78 also includes the attachment of a relative stiffness Part 84, it is extended laterally between the lateral part 82 of support housing 80, and positioned at the front portion of support housing 80 and seat disk 46 Between part 64.Support housing 80 and attachment component 84 are fixed to the front part of seat disk 46 by multiple machanical fasteners 86 64.Spring supporting component 78 also includes a pair of cantilever springs 88, and it each has the corresponding hole 92 by attachment component 84 The distal end 90 received, and be fixed to the near-end 94 of seat supporting plate 32, so that the distal end 90 of each cantilever spring 88 can be with Bent in vertical direction 66.A pair of linear bearings 96 are securely attached to attachment component 84 and are aligned with its hole 92, so that Distal end 90 of each linear bearing 96 slideably received within a corresponding cantilever spring 88.In operation, when the use taken one's seat Person on portions component 16 when rotating forward and applying downward power to its leading edge, and cantilever spring 88 works in coordination to allow seat The front portion 64 of disk 46, and the more generally useful whole front part of portions component 16, are bent with vertical direction 66.

Reference number 16a (Fig. 6) generally indicates another embodiment of portions component.Portions component 16a is similar to previous The portions component 16 of description, is marked so respectively appearing in Fig. 5 A parts similar with Fig. 6's -10 by identical, corresponding reference Number represent, except having suffix " a " in the label of the latter in the example that shows.Portions component 16a includes the seat of relative stiffness Supporting plate 32a, it has leading edge 34a, trailing edge 36a, and a pair of C-shaped guide rail 38a, and which defines seat supporting plate 32a side Edge, and extend between leading edge 34a and trailing edge 36a.Portions component 16a also includes a pliable resilient seat shell body 40a (figures 6 and 7), it has a pair of retrousse lateral part 42a, and it is each terminated in a lateral margin 43a, and leading edge 45a, Yi Jixiang On the rear portion 44a that turns over, it terminates at a trailing edge 47a and including a lobe point 49a, wherein lateral part 42a and posterior 44a is divided to coordinate to form a shape being generally concaved dimensionally arranged upwards.Seat housing 40a is by relatively pliable material Material, such as thermoplastic elastomer (TPE) (TPE) are constituted, and are molded as single single piece.Assembling as described in further detail below In, seat shell body 40a is fixed and is sandwiched in seat supporting plate 32a between a plastics, pliable resilient seat disk 46a, Seat disk is fixed to seat supporting plate 32a by multiple machanical fasteners.Seat disk 46a include a leading edge 48a, trailing edge 50a, Lateral margin 52a, the top surface of the shape being generally concaved set up with synthesis one extended between leading edge 48a and trailing edge 50a 54a and basal surface 56a.In the example in the figures, disk 46a in seat includes the groove 58a of multiple Longitudinal extendings, its from trailing edge 50a to Preceding extension.Groove 58a works in coordination to limit multiple finger 60a in-between, each finger 60a for it is individually pliable, Elasticity.Seat disk 46a also includes the long hole 62a of multiple transversal orientations, and it is located near leading edge 48a.Hole 62a mutually matches Close to increase seat disk 46a overall mutabililty in its region, and it is relative to more specifically allow for a seat disk 46a front part 64a Bent in seat disk 46a backward part 68a in vertical direction 66a, as discussed further below.Portions component 16a is also wrapped Airfoam cushion part 70a is included, it has a upper surface 76a, and rest on seat disk 46a top surface 54a and be absorbed in seat In shell body 40a.Portions component 16a also include fabric cover for seat 72a, its there is leading edge 73a, trailing edge 75a and in both it Between a pair of lateral margin 77a extending.Portions component 16a by spring supporting component 78a support (Fig. 6), it on structurally and operationally and Foregoing spring supporting component 78 is similar.

As most clearly showed that in Fig. 7 and 8, pliable resilient seat housing 40a and fabric cover for seat 72a coordinate to be formed Outer decoration cover component or set 100a.Specifically, seat housing 40a lateral margin 43a and cover for seat 72a lateral margin 77a, seat housing 40a leading edge 45a and cover for seat 72a leading edge 73a, and seat housing 40a trailing edge 47a and cover for seat 72a trailing edge 75a It is attached to one another to form set 100a and limit inner space 102a wherein respectively.

Seat housing 40a lobe point 49a includes pair of horns edge 104a, and it is each located at rear portion along seat housing 40a Angle 106a extensions between part 44a and corresponding lateral part 42a, so that the lobe point 49a can be in open position I and closure Moved between the J of position.In the example in the figures, lobe point 49a each angle edge 104a include it is multiple along angle of entry edge 104a each other The lug 108a of separation, each lug includes extending through hole 110a therein.Angle edge 104a lug 108a and multiple edges The lug 112a that each lateral part 42a angle edge 114a is separated mutually separates.Each lug 112a includes extending through it In hole 116a.Seat housing 40a also include around seat housing 40a inner edge 121a be separated it is multiple integrally moulded Lug 118a is coupled, it each has Z-shaped, section configuration.

In assembling, outer decoration cover component 100a (Fig. 9) is built as described above from seat housing 40a and cover for seat 72a.So Back seat disk 46a, cushion components 70a and spring supporting component 78a are arranged relative to each other, with outer decoration cover component 100a groups Dress, this is, by the way that valve 49a is placed in into open position I, seat disk 46a, cushion components 70a and spring supporting component 78a to be positioned In in the 102a of inner space, valve 49a is then moved on into closed position J.A pair of quick securing member 120a are each included along a L Multiple buckle male part 122a that the main part 124a of shape length is separated.In assembling, buckle male part 122a quilts Lug 108a, 112a hole 110a, 116a are extended through, and be received in the corresponding holes of seat disk 46a with being snapped In 126a, so that angle edge 104a, 114a are fixed into seat disk 46a and lobe point 49a is fixed on into closed position J.

Afterwards in assembling, coupling lug 118a (Figure 10) is located in seat disk 46a corresponding hole 130a, with Cause set component 100a to be temporarily fixed to seat disk 46a, thus allow further to manipulate socket section group in an assembling process Part 16a, while keeping set component 100a and seat disk 46a connections and being aligned.Herein, " temporarily fix " and be defined as one Plant and fix, it is not expected to be used solely as normally using chair assembly during the life-span good for use of whole chair assembly When keep the set component 100a to be fixed to seat disk 46a.After supporting plate 32a seat is fixed to by multiple screw 132a Coupling lug 118a, is thus clipped between supporting plate 32a and seat disk 46a by disk 46a downside, and it is permanent to cover component 100a Ground is fixed to seat disk 46a.Herein, " for good and all fix " and be defined as a kind of fixation, it is expected to whole chair group The set component is kept to be fixed to seat disk 46a when normally using chair assembly during the life-span good for use of part.

Reference number 16b (Figure 11) generally indicates another embodiment of portions component.Portions component 16b is similar to previous The portions component 16 and/or portions component 16a of description, thus respectively appear in Fig. 5 A-10 parts similar with Figure 11's -17 by Identical, corresponding reference number sign, except the suffix " b " in the label of the latter.In the example in the figures, portions component 16b is similar to portions component 16 and portions component 16a in configuration and structure, and most significant exception is one and alternatively configured With the seat shell body 40b and outer decoration cover 100b of construction.

Portions component 16b (Figure 11) includes a pliable resilient seat shell body 40b, and it has a pair each in a lateral margin Retrousse lateral part 42b, leading edge 45b that 43b is terminated, and terminate at the retrousse rear portion of a trailing edge 47b 44b, wherein lateral part 42b and rear portion 44b coordinate to form a shape being generally concaved dimensionally arranged upwards. Seat housing 40b is by relative pliable material, and such as thermoplastic elastomer (TPE) (TPE) is constituted, and is molded as single single piece.Such as In the assembling being further detailed below, seat shell body 40b is fixed and is sandwiched in seat supporting plate 32b, a plastics, easily Between curved resilient seat disk 46b and a plastics, substantially rigid overcoating 51b, it is each via multiple machanical fasteners It is fixed to seat supporting plate 32b.Overcoating 51b has a upward arcuate shape, and prolongs forward including rear wall 53b and a pair The side wall 55b stretched, it each includes a most leading edge 57b, and wherein described rear wall 53b and side wall 55b coordinates most upper to be formed Edge 59b.Seat disk 46b includes a leading edge 48b, trailing edge 50b, the lateral margin 52b extended between leading edge 48b and trailing edge 50b, cooperation Into the top surface 54b and basal surface 56b of a shape being generally concaved set up.

As most clearly showed that in Figure 12 and 13, pliable resilient seat housing 40b, fabric cover for seat 72b and overcoating 51b Coordinate to form outer decoration cover component or set 100b.In the example in the figures, seat housing 40b lateral margin 43b and cover for seat 72b Lateral margin 77b, seat housing 40b leading edge 45b and cover for seat 72b leading edge 73b, and seat housing 40b trailing edge 47b and seat Position set 72b trailing edge 75b is attached to one another respectively, so that seat housing 40b and fabric cover for seat 72b and overcoating 51b coordinates with shape Complete 100b and wherein restriction inner space 102b.Seat housing 40b also include around seat housing 40b inner edge 121b each other The multiple integrally moulded coupling lug 118b separated, it each has Z-shaped, section configuration.

In assembling, by outer decoration cover component 100b (Fig. 9) seat housing 40b and cover for seat 72b as described above each other Coupling.As most clearly showed that in Figure 15 and 16, seat housing 40b lateral part 42b is coupled to fabric cover for seat 72b, With in limiting one jiao of 79b between the two.Here indicate, while using fabric cover for seat 72b textile material and seat housing 40b TPE 90 ° or smaller of angle angle beta distinct, attractive in appearance is provided, while providing soft, elasticity a, deformable sense of touch To user.Then seat disk 46b, cushion components 70b and spring supporting component 78b are arranged and are located in set relative to each other In 100b inner space 102b.Then, shell 40b is by multiple integral hook-type male part 123b quilts in terms of horizontal direction displacement Be fixed to seat disk 46b, those hook-type male parts are separated around shell 40b periphery, and engage around seat disk 46b sidepiece and The deburring part 125b extended downwardly of rear perimeter extension.Shell 40b (Figure 17) also includes multiple Z-shaped couplings with shell 40b one Component 127b, it is received in seat disk 46b corresponding hole 129b, thus in terms of vertical displacement that housing 40b is temporary When be fixed to seat disk 46b.

Afterwards in assembling, being cladded with 51b (Figure 17) includes multiple L-shaped hook 131b being integrally formed, and they are along side Wall 55b is separated, and slidably engages corresponding multiple angled couplings being integrally formed with seat disk 46b Part 133b.Specifically, when overcoating 51b relative to seat disk 46b by forward slip when, hook 131b is engaged with male part 133b.So It is cladded with 51b afterwards to be secured in position by a pair of screws 135b, wherein screw is extended by the overcoating corresponding hole 137b of 51b, and It is housed inside in screw thread, male part 127b is trapped in hole 129b in seat disk 46b corresponding sleeve 139b thus.Then Supporting plate 32b is fixed to seat disk 46b downside by multiple screw 132b, thus by with overcoating 51b one it is multiple that This coupling lug 141b separated is sandwiched between supporting plate 32b and seat disk 46b, and set component 100b is permanently fixed into seat Position disk 46b.Here indicate, term " temporarily fixing " and " for good and all fixing " have defined in above.

Backrest module 18 (Figure 18-20B) includes back frame component 200 and the back-supported component 202 being supported by it.Lean on Carry on the back frame assembly 200 and generally include a generally rigid material, such as metal, and including a top frame extended laterally The side frame portions 208 of frame part 204, a bottom frame part 206 extended laterally, and a pair of curved, they are in top Extend between frame part 204 and bottom frame part 206, and coordinate with it to limit opening 210, it has relatively large upper The bottom dimension 214 of portion's dimension 212 and relative narrowness.

Backrest module 18 also include one it is pliable ground elasticity plastics coupler body 216, its have upper part 218, under Portion part 220, one for extend between upper part 218 and low portion 220 lateral margin 222, a forward surface 224 and one The width of surface 226 backward, the wherein width of upper part 218 generally than low portion 220 is big, and low portion 220 configurations for reducing generally to follow the rear portion of frame assembly 200 to face aspect downwards.(the figure of one bottom strengthening part 228 29A) it is attached to the hook 230 of the low portion 220 of coupler body 216.Strengthening part 228 includes multiple projections 232, and its engagement is leaned on Multiple reinforcement ribs 250 of backpanel housing 216, to prevent bottom strengthening part 228 with respect to the side of coupler body 216 to opposite side Movement, and strengthening part 228 in pivotal point or axis 590 by backrest controller control 236 and the low portion of coupler body 216 220 are pivotally connected to each other, and the above is all as described below.

Coupler body 216 also includes multiple integrally moulded, hooks 240 (Figure 21) for forwardly and upwardly extending, they in by The periphery of the upper part 218 of backpanel housing is separated.Centre is vertically located at the upper of coupler body 216 by waist portions 242 Between portion part 218 and low portion 220, and including multiple grooves 244 extended laterally, it coordinates what is be disposed between to be formed Multiple ribs 246 extended laterally.Groove 244 cooperates with each other to provide extra mutabililty as coupler body 216 in its position.One To transverse ribs 246 coordinate with vertically extending rib 248, the latter is integrally formed with the former, and big located at the former Horizontal intermediate point about.When backrest module 18 moves on to reclined position F from stand up position E as described below, in coupler body 216 when intermediate position 242 is bent, and vertical ribs 248 act on that transverse ribs 246 link together and reduce the latter Between vertical extension.The reinforcement rib 250 that the multiple transverse direction is separated in low portion 220 and center section 242 it Between along coupler body 216 vertical length Longitudinal extending.Here indicate, the depth of every rib 250 along every rib 250 therefrom Between part 242 deepen toward low portion 220 so that the integral rigidity of coupler body 216 along rib 250 length increase.

What coupler body 216 (Figure 20 A and 20B) also extended back including a pair, integrally moulded pivot bosses 252, its Form a part for back pivot component 254 on one.Back pivot component 254 (Figure 22-24B) includes the pivot of coupler body 216 Crown of roll platform 252, a pair of cap assembly 256, the mechanical fastening components of track component 258 and one around respective pivot bosses 252 260.Each pivot bosses 252 include the spill seat surface 264 a pair of sidewalls 262 and one backward, and it, which has, extends through it In the pivot channel 266 vertically extended.Each cap assembly 256 is shaped to be closely received corresponding pivot bosses 252, and Include the bearing surface 270 of multiple side walls 268 corresponding to side wall 262, and a spill backward, it includes extending through wherein A pivot channel 272 vertically extended, and its be suitable to be aligned with the groove 266 of corresponding pivot bosses 252.Track component 258 cores 274 including extending laterally and being abutted with it along the top frame part 204 of back frame component 200, and position In the bearing surface 276 of a pair of arcs of its end.Specifically, core 274 includes Part I 278 and Part II 280, wherein Part I 278 abuts the preceding surface of top frame part 204, and Part II 280 abuts top frame part 204 top surface.Each bearing surface 276 extends through hole 282 therein including one, and it is aligned and back frame component The corresponding sleeve part 284 of 200 one.

In assembling, cap assembly 256 is positioned around the corresponding pivot bosses 252 of coupler body 216 and operationally fixed Between coupler body 216 and track component 258, so that bearing surface 270 is sandwiched in the seat of corresponding pivot bosses 252 Between the bearing surface 276 of surface 264 and one.Mechanical fastening component 260 respectively includes a bolt 286, and it is by the circle of bearing washer 290 Shape abutment surface 288 is fixed on the sliding engagement with the inner surface 292 of corresponding pivot bosses 252, and with coupler body 216 Corresponding sleeve part 284 is threadedly engaged.In operation, upper back pivot component 254 allows back-supported component 202 relative Pivoted in back frame component around pivotal line 296 (Figure 18) with direction 294 (Figure 19).

Back-supported component 202 (Figure 20 A and 20B) also includes the comfortable part 298 (Figure 26 A and 26B) of pliable ground elasticity, It, which is attached to coupler body 216 and slidingly supports one, leans on waist component 300.Comfortable part 298 include upper part 302, under Portion part 304, a pair of lateral parts 306, preceding surface 308 and rear surface 310, wherein upper part 302, the and of low portion 304 Lateral part 306 coordinates to form hole 312, and it is received by waist component 300 in wherein.As most clearly showed that in Figure 20 B and 25 , comfortable part 298 includes multiple box-like male parts 314 for being separated around the periphery on top 302, and they are from rear surface 310 Extend back.Each box-like male part 314 includes the roof 318 of a pair of sidewalls 316 and one, and they coordinate to form an inner space 320.One bar 322 extends between side wall 316, and separates from rear surface 310.In assembling, comfortable part 298 is fixed To coupler body 216, this is coupled by being directed at and being inserted perpendicularly into each box-like by the hook 240 (Figure 23) of coupler body 216 In the inner space 320 of part 314, until hook 240 engages corresponding bar 322.Here indicate, the preceding surface 224 of coupler body 216 It is being no hole or hole close to the hook 240 and the part of box-like male part 314 with the rear surface 310 of comfortable part 298, from And the comfort for the user that smooth preceding surface 308 is taken one's seat with increase is provided.

Comfortable part 298 (Figure 26 A and 26B) includes integrally moulded, the sleeve pipe 324 of Longitudinal extending, and it is from rear surface 310 Extend back, and the cross-sectional configuration with rectangle.It is laterally forward concave surface including one by waist component 300 and is vertically convex surface forward , the pliable, main part 326 of elasticity and the support section 328 integral with it that is upwardly extended from main part 326. In example illustrated, main part 326 be formed so that the main part vertically along its reduced height so that its generally according to Follow the profile and shape of the hole 312 of comfortable part 298.Support section 328 is slideably received in the set of comfortable part 298 In pipe 324, so that relative to the remaining part of back-supported component 202 being vertically adjustable in reducing completely by waist component 300 Between position I and the position J risen completely.Pawl component 330 is selectively engaged along the length of support section 328 divides each other Every multiple holes 332 so that releasedly it is fixed by waist component 300 in the position I reduced completely and the position J risen completely Between select upright position on.Pawl component 330 (Figure 27 A and 27B) includes a housing parts 334, and it, which has, is located at it The engagement lug 336 that end and outer surface 338 from housing parts 334 are offset backward.The quilt of finger 340 of one pliable ground elasticity It is centrally placed in housing parts 334, and including a ratchet 342 extended back.

In assembling, pawl component 330 (Figure 28) is located in the hole 344 in the upper part 302 of comfortable part 298 It is interior, so that the outer surface 338 of the housing parts 334 of pawl component 330 and the preceding surface 308 of comfortable part 298 are coplanar, and with The engagement lug 336 of housing parts 334 is caused to abut the rear surface 310 of comfortable part 298.Then by by the support of waist component 300 Part 328 is positioned in the sleeve pipe 324 of comfortable part 298, so that sleeve pipe 324 is slidably in wherein, and ratchet 342 is selection Property can be engaged with hole 332, thus allow user optimization by waist component 300 relative to overall back-supported component 202 Position.Specifically, the main part 326 by waist component 300 includes a pair of handle portions 346 stretching out, integral with it (Figure 29 A and 29B), it each has C-shaped cross-sectional configuration, and it limits raceway groove 348 in wherein, and it surrounds the side of coupler body 216 The corresponding lateral margin 306 of edge 222 and comfortable part 298 is simultaneously oriented to along it.Alternately there is provided by waist component 300c (Figure 30), Wherein main part 326c and support section 328c are formed integrally, and handle 346c and main part 326c dividually shapes And be attached to thereon.In alternate embodiments, each handle 346c includes a pair of blade 350c, and it is received in main part In the corresponding pocket 352c for dividing 326c.Each blade 350c includes a pair of engaging lug 354c being separated along its length, It is engaged with buckle with an edge of one of hole in multiple hole 356c in main part 326c.

In operation, user by catch handle portion 346,346c wherein one or two, and along comfortable portion Part 298 and coupler body 298 with vertical direction sliding handle component 346,346c with adjust lean on waist component 300,300c relative to The relative vertical position of coupler body 216.Stopping tab 358 is integrally formed therewith in distally 360, and offsets to connect from it The end wall of the sleeve pipe 324 of comfortable part 298 is closed, so as to limit the support section 328 by waist component 300 relative to comfortable part The stroke vertically downward of 298 sleeve pipe 324.

Backrest module 202 (Figure 20 A and 20B) also includes the cushion components with upper part 364 and low portion 366 362, wherein low portion 366 along its vertical length reduce with correspondence coupler body 216 and comfortable part 298 global shape and Reduce.

Back-supported component 202 also includes an outer decoration cover component 400 (Figure 31), and it accommodates comfortable part 298, lumbar support Component 300 and cushion components 362 are in wherein.In the example in the figures, set component 400 includes textile material, and including front side 402 (Figure 32 A) and rear side 404, they are stitched together along its corresponding lateral margin to form the first pocket 406, and it has inside first Or interior space 408, it receives comfortable part 298 and cushion components 362 in wherein, and lobe point 410, and it is sewn to rear side 404 and it is matched therewith to form the second pocket 412, it has the second inside or interior space 413 (Figure 32 D), it receives waist Support component 300 is in wherein.

In assembling, by the way that the respective lateral edge of front side 402 and rear side 404 is attached to one another (for example by suture or other It is suitable for the method for the material of group kit 400) to form the first pocket 406 (Figure 32 A), and to limit the first inner space 408.Then one edge of lobe point 410 is fixed to the lower end of rear side 404.Afterwards, in the example in the figures, coupler body 216 and the combinations of cushion components 362 inner space of the first pocket 406 is inserted into via the hole 415 of rear side 404 (Figure 32 B) In 408.Outer decoration cover component 400 was stretched around cushion components 362 and comfortable part 298, and by by the hook upwardly extended Multiple holes 420 that part 424 (Figure 33) is received with passing through are fixed to comfortable part 298.Alternately, component is covered 400, which can be configured to pore gap 420, is positioned to receive the T-shaped attachment member 422 passed through simultaneously.In example illustrated In, attachment component 422 and hook part 424 are integrally formed with comfortable part 298.Each attachment component 422 is provided a T-shaped and cut Face or bitt configuration, it has Part I 428, and it is at a right angle out of the rear surface 310 of comfortable part 298 recess 429 Ground extends back, and a pair of Part II 430, its be located at Part I 428 distal end and reciprocally from this distally to Outer extension.One of them of Part II 430 coordinates to form an angled composition surface 432 with Part I 428.It is recessed Enter portion 429 and define edge 434 in its periphery.

Set component 400 is further secured to comfortable part 298 by drawstring 436, and its medium pulling rope is by covering the drawing of component 400 Rope passage 438 extends, and is fixed to attachment component 422.Specifically, and as most clearly showed that in Figure 34 A-34H, draw Rope 436 each free end by one do not knot and without using the machanical fastener independently of comfortable part 298 in the way of fixed To associated attachment component 422.In assembling, drawstring 436 and draw cord channel 438 draw around multiple guiding hooks 439 (Figure 26 B) Lead, guiding hook is arranged and is integrally formed therewith around the periphery of comfortable part 298.Drawstring 436 is wrapped in the attachment of correlation On part 422, so that drawstring 436 forces the connecing against that face for bending towards recess 429 of drawstring 436 around the tension force of attachment component 422 Surface 432 is closed, so that force drawstring 436 is partly into recess 429, and makes its edge 434 with recess 429 extremely Few part engagement, to be frictionally engaged up to increased between cause drawstring 436 and comfortable part 298.Figure 35 1 and 35J are shown respectively With respect to step medium pulling rope 436 shown in Figure 34 G and 34H can around attachment component 422 and row alternative route.

Then, by the assembly pair of waist component 300 (Figure 32 C) and set component 400, cushion components 362 and comfortable part 298 Standard, so that the main part 326 by waist component 300 is located near the stage casing 414 of set component 400, and by the support of waist component 300 Part 328 and comfortable part 298 are coupled as described above.Then 410 (Figure 32 D) of lobe point are crossed by waist component 300 by folding, so that Produce the second pocket 412 with inner space 413.The one of lobe point 410 is located at the edge 442 of distal end by lobe point 410 It is interior, allow hook 424 to pass through to be attached to comfortable part 298 to receive multiple holes 444 of hook 424.Remote edge 442 also may be used To be sewn the rear side 404 of set component 400.In the example in the figures, the lateral margin 446 of lobe point 410 is not attached to set group The remainder of part 400, such lateral margin 446 and the remainder of set component 400 coordinate to form multiple grooves 448, by waist component 300 handle portion 346 is extended by those grooves.Second pocket 412 is configured so that by waist component 300 in wherein vertically may be used Adjust.Then set component 400, cushion components 362, comfortable part 298 and the assembly by waist component 300 are attached to coupler body 216。

Reference number 18d (Figure 36) generally indicates an alternate embodiment of backrest module.Backrest module 18d is similar to first The backrest module 18 of preceding description, so appearing in Figure 20 A parts similar with Figure 36's -41 with Figure 20 B by identical, corresponding Reference number is represented respectively, except there is suffix " d " in the label of the latter.Backrest module 18d include back frame component 200d, Coupler body 216d, and an outer decoration cover component 400d.In the example in the figures, coupler body 216d is generally easy including one Curved outer peripheral portion 450d (Figure 37 and 38), and the significantly relatively low rear portion 452d of mutabililty, peripheral part 450d It is attached to thereon.Rear portion 452d include it is multiple extend laterally, the groove 454d that separates perpendicular to each other, it is worked in coordination To limit lath 456d between it.Peripheral part 450d and rear portion 452d coordinates to form an opening faced out 458d, it extends around coupler body 216d periphery.Rear portion 452d include multiple rib 460d, they around opening 458d that This separates and is used as that set component 400d is fixed into coupler body 216d as described below.

Set component 400d includes the maintaining part that fabric sleeve 462d and the periphery edge 466d around fabric sleeve 462d extend Part 464d.Fabric sleeve 462d includes preceding surface 468d and rear surface 470d, and is preferably included in longitudinal direction and horizontal direction The flexible material of at least one aspect.As most clearly showed that in Figure 39, holding member 464d is annular, and including multiple Each there is the widened section 472d of square-section configuration, widened section is with each having the multiple narrowed of circular cross-section configuration Corner part 474d is separated.Each widened section 472d includes multiple hole 476d being separated along its length, those Hole is suitable to engage with coupler body 216d rib 460d as described below.Holding member 464d is by a pliable modeling relatively Material is constituted, so that outside can holding member 464d inside be routed up, as shown in figure 40.

In assembling, holding member 464d is fixed to set 462d rear surface 470d, so that set 462d is with widened section 472d is fixed in terms of rotation, and so that set 462d not with narrowed corner part 474d along being tangential on narrowed turn The line of the angle part 474d longitudinal axis is fixed in terms of rotation.In the present example, holding member 464d (Figure 41) is around set 462d's Periphery edge 466d is sewn, wherein the stitch sutured is through widened section 472d and bypasses narrowed corner part 474d 's.Holding member 464d and the set component 400d for covering 462d are aligned with coupler body 216d, and the peripheral edge that 462d will be covered Edge 466d surrounds coupler body 216d, so that holding member 464d inside is routed up outside.Then holding member 464d is inserted Opening or groove 458d, so that the tension force of the fabric sleeve 462d around the coupler body 216d that was stretched keeps holding member 464d Clearly it is engaged in groove 458d.Coupler body 216d rib 460d engagement holding members 464d corresponding hole 476d, So as to which further holding member 464d is fixed in groove 458d.Here indicate, attachment set 462d to holding member 464d seam Method allows holding member 464d narrowed corner part 474d freely to be rotated relative to set 462d, so as to reduce neighbouring set Anomaly aesthetically near 462d angle, the clustering of such as textile design or hyper-extended.

Portions component 16 and backrest module 18 are operably coupled to control assembly 14 (Figure 42) and control input component 500, and controlled by them.Control assembly 14 (Figure 43-45) includes housing or base construction or ground structure 502, and it includes antetheca 504th, rear wall 506, a pair of sidewalls 508 and bottom wall 510, they are formed integrally with each other and coordinated to form upward opening Inner space 512.Bottom wall 510 is placed in one centre including a hole 514, as described below.Base construction 502 is further defined The pivotal point 516 in top and front, pivotal point 518 and the up pivotal point 540 with rear in lower section and front, wherein controlling Component 14 processed also includes the seat support structure 522 of support base parts 16.In the example in the figures, seat support structure 522 With essentially u-shaped plane configuration, it includes a pair of arm section 524 extended forward, and it each includes one and is located at front Pivot hole 526, it is pivotably fixed to base construction 502 by pivot axostylus axostyle 528, with around the pivot of top and front Point 516 moves pivotally.Seat support structure 522 also include rear portion 530, it extended laterally between arm section 524 and with It coordinates to form inner space 532, and base construction 502 is received in it.What rear portion 530 extended back including a pair Arm mounting portion 534, arm component 20 is attached thereon as described below.Seat support structure 522 also includes control input component Mounting portion 536, control input component 500 is attached thereon.Seat support structure 522 also includes a pair of bush assemblies 538, They coordinate to limit pivotal point 540.

Control assembly 14 also includes a backrest supporting structure 542, and it has essentially u-shaped plane configuration and including a pair The arm section 544 extended forward, it each includes a pivot hole 546 and is pivotally coupled to base by pivot axostylus axostyle 548 Holder structure 502, so that backrest supporting structure 542 is wound on lower section and the pivotal point 518 in front is pivoted.Backrest supporting structure 542 is wrapped Rear portion 550 is included, it coordinates to limit inner space 552 with arm section 544, it receives base construction 502 in wherein.Backrest Supporting construction 542 also includes a pair of pivot hole 554 arranged along its length, and they coordinate to limit pivotal point 556.Here note Bright, in some cases, at least a portion of back frame component 200 can be included as one of backrest supporting structure 542 Point.

Control assembly 14 also includes multiple controller controls 558, and they respectively have pivotly is coupled by a pair of pivot pin 562 It is pivotally coupled to first end 560 of the seat support structure 522 to be pivoted around pivotal point 540, and by a pair of pivot pin 566 Second end 564 of the corresponding pivot hole 554 of backrest supporting structure 542 to be pivoted around pivotal point 556.In operation, chair is worked as When sub-component is by migration reclined position, controller control 558 controls seat support structure 522 relative to backrest supporting structure 542 Motion, specifically controls its hypsokinesis speed, as described below.

As most clearly showed that in Figure 46 A and 46B, the bottom frame part 206 of back frame component 200 be configured to through Backrest supporting structure 542 is connected to by a Quick Connect Kit 568.Each arm section 544 of backrest supporting structure 542 includes One positioned at its near-end 572 installs hole 570.In the example in the figures, Quick Connect Kit 568 includes back frame component The configuration of 200 bottom frame part 206, it includes a pair of male part parts 574 extended forward, and male part part 574 is matched somebody with somebody Close to limit the raceway groove 576 between them, raceway groove 576 receives the near-end 572 and rear portion 550 of arm section 544 in the inner. Each male part part 574 includes a sleeve 578 extended downwardly, and it is directed at a corresponding hole 570 and is received in wherein. Then machanical fastener (such as screw 580) is screwed into the screw thread of sleeve 578, thus allows back frame component 200 quick It is connected to control assembly 14.

As most clearly showed that in Figure 47, base construction 502, seat support structure 522, backrest supporting structure 542 and control System connection 558 coordinates to form a double leval jib component, its support base parts 16, backrest module 18 and arm component 20 (Fig. 1).For It is convenient for reference, is called as follows with the associated pivot component of the double leval jib component liaison of control assembly 14：Base construction 502 The pivotal point 516 up with front between base supports structure 522 is referred to as the first pivotal point 516；In base construction 502 The pivotal point 518 in lower section and front between backrest supporting structure 542 is referred to as second pivotal point 518；In controller control 558 First end 560 and seat support structure 522 between pivotal point 540 be referred to as the 3rd pivotal point 540；And, in controller control 558 The second end 564 and backrest supporting structure 542 between pivotal point 556 be referred to as the 4th pivotal point 556.In addition, Figure 47 is with dotted line Show be in reclined position in chair assembly 10 component, wherein the chair of reclined position reference number with " ' " indicate.

In operation, the double leval jib component of control assembly 14 coordinates to be moved into from stand up position E in backrest module 18 By portions component 16 from stand up position G hypsokinesis to reclined position H during reclined position F, the wherein top of position E and F in Figure 47 Represent to show with bottom, the upper part and low portion of backrest module 18 are used as the hypsokinesis of single piece ground.Specifically, control System connection 558 is configured and coupled to seat support structure 522 and backrest supporting structure 542, so that when backrest supporting structure 542 When being pivoted around second pivotal point 518, seat support structure 522 is pivoted around the first pivotal point 516.Preferably, seat support structure The pact for the speed that 522 speed being rotated around the first pivotal point 516 rotate for backrest supporting structure 542 around second pivotal point 518 Between 1/3 to about 2/3, more preferably seat support structure 522 is backrest supporting structure around the speed that the first pivotal point 516 is rotated About half of 542 speed rotated around second pivotal point 518, and most preferably, when backrest module 18 is from completely erected position E Hypsokinesis is to angle γ, and it is about 18 °, during to complete reclined position F, and portions component 16 is from completely erected position G hypsokinesis to angle β, it is about 9 °, to complete reclined position H.

As most clearly showed that in Figure 47, no matter when position of the chair assembly 10 in completely erected position or complete hypsokinesis When putting, the first pivotal point 516 is all the top and front for being located at second pivotal point 518, because when seat assembly 10 is by hypsokinesis, Base construction 502 keeps fixing relative to the floor surface 13 of support.During the whole reclining movement of chair assembly 10, 3rd pivotal point 540 be maintained at behind the first pivotal point 516 and its relative vertical elevational below.Here it is further noted that In the whole reclining movement of chair assembly 10, the distance between the first pivotal point 516 and second pivotal point 518 are remained above The distance between three pivotal points 540 and the 4th pivotal point 556.As most clearly showed that in Figure 48, when chair assembly 10 has been in During full stand up position, central axis 582 and the formation sharp angle α of seat support structure 522 of a Longitudinal extending of controller control 558, And when chair assembly 10 is in complete reclined position, they then form sharp angle α '.Here indicate, when chair assembly 10 is in it When between completely erected and complete reclined position by movement, the central axis 582 of controller control 558 will not be rotated more than and seat The orthogonal alignment of supporting construction 522.

With further reference to Figure 49, backrest controller control 584 includes front end 585, and it is in the 5th pivotal point 586 by pivotly Couple or be connected to seat support structure 522.The rear end 588 of backrest controller control 584 is connected in the 6th pivotal point 590 to be leaned on The bottom 220 of backpanel housing 216.6th pivotal point 590 is optional, and backrest controller control 584 and coupler body 216 also can be firm Property it is fixed to one another.In addition, pivotal point 590 can include a retainer, it limits the relative coupler body of backrest controller control 584 216 the first and/or second rotation direction rotation.For example, referring to Figure 49, pivotal point 590 can include retainer 592, its The low portion 220 of coupler body 216 is allowed to be turned clockwise relative to controller control 584.If tending to reduce dimension D₁'s What backward/horizontal force was applied to coupler body 216 leans on waist, and above-mentioned configuration allows to become relatively to put down by waist.However, retainer 592 can be configured to prevent the low portion 220 of coupler body 216 from rotating in a counter-clockwise direction (figure relative to controller control 584 49).This causes when user is by upper part hypsokinesis in chair for pushing backrest module 18, connection control 584 and leans on The low portion 220 of backpanel housing 216 is rotated with identical angular speed.

One cam connection 594 is also pivotly coupled or is connected to seat support structure 522 with around pivotal point or axle 586 Rotate.Cam connection 594 has the lower cam face 596 of a bending, and it, which is slidably engaged, is formed close to back support structure 542 In cam face 598 upward.A pair of torque springs 600 (referring also to Figure 29 A) with tend to increase angleThe side of (Figure 49) Formula rotationally biases backrest controller control 584 and cam connection 594.Those torque springs 600, which are produced, to be tended to counterclockwise Direction rotates controller control 584 and rotation cam couples 594 power in a clockwise direction simultaneously.Therefore, those torque springs 600 Tend to increase the angle between backrest controller control 584 and cam connection 594Retainer on seat support structure 522 The position rotated counterclockwise to shown in Figure 49 of 592 limitation backrest controller controls 584.This power also can by controller control 584 with Counterclockwise it is biased into retainer 592.

As discussed above, coupler body 216 is pliable, particularly compared to rigid back frame structure 200.Together Therefore and back rest supports as discussed above, back frame structure 200 is rigidly attached backrest supporting structure 542 to sample, and Structure 542 is pivoted.The power produced by torque spring 600 pushes up the low portion 220 that press against coupler body 216.Equally as above Discussed, those grooves 244 in coupler body structure 216 are produced in coupler body 216 by waist supporting part or region 242 Extra mutabililty.The power produced from torque spring 600 also tend to be led to coupler body 2126 by waist portions 242 to antecurvature Song, so that the region by waist portions 242 than adjacent torque spring 600 has bigger radian.

As discussed above, the position by waist component 300 is vertically adjustable.Vertical adjustment by waist component 300 is also adjusted The mode for the bending of the whole coupler body 216 during the hypsokinesis of back 18/bent.For example, working as one is transferred to by waist component 300 During middle or neutral position, the radian by waist portions 242 (Figure 49) of coupler body 216 is also middle or neutral.If leaned on The upright position of waist component 300 is conditioned, angle(Figure 50) is reduced, and is reduced by the radian of waist portions 242.As schemed Shown in 50, this also causes angleBecome big, and the global shape of coupler body 216 turns into relatively straight.

With further reference to Figure 51, if the height by waist component 300 is set at by-level (that is, such as Figure 49), and One user's leans back, then limited by connection and structure 502,522,542,558 and pivotal point 516,518,540,556 Double leval jib Figure 51 configuration (as described above) will be moved to from Figure 49 configuration.This so cause pivotal point 586 and cam face The distance between 598 increases.This causes angleIncreased to about 59.9 ° (Figure 51) from about 49.5 ° (Figure 49).When spring direction is opened The position opened is rotated, and energy of the section store in spring is transferred in coupler body 216, so that coupler body 216 Become much larger by the radian of waist portions 220.Like this, it is backrest controller control 584, convex in user's leans back in chair Wheel connection 594 and torque spring 600 is provide bigger radian by waist portions 242, to lower the radian at user back.

In addition, when chair tilts to Figure 51 position from Figure 49 position, by waist region or part 242 and seat 16 it Between from 174 millimeters increase to 234 millimeters apart from D.When backrest 18 tilts to Figure 51 position from the position in Figure 49, backrest The dimension D leaned between waist portions 242 and back frame structure 200 of housing 216₁Also increase.Therefore, during hypsokinesis, although Increase a little apart from D, dimension D₁Increase reduce dimension D increase because coupler body 216 is relative by waist portions 242 Shifted forward in back frame 200.

Referring again to Figure 49, when user 606 is seated at stand up position, the backbone 604 of the user 606 taken one's seat is in waist It is inclined to the first amount to antecurvature in portion region 608.When position of the user 606 from Figure 49 position leans back to Figure 51, waist The radian in region 608 tends to increase, and the backbone 604 of user is also by 612 turns of the femur around hip joint 610 relative to user Move a bit.Dimension D increase and the increase of the radian by waist portions 242 of coupler body 216 ensure the hip joint of user 610 and femur 612 will not seat 16 on slide, while being also adapted to the arc of the lumbar region 608 of the backbone 604 of user Degree.

As discussed above, Figure 50 shows the backrest 18 of chair in stand up position, and wherein coupler body 216 leans on waist 242 are divided to be brought to straight position.If back 18 is inclined to Figure 52 position from Figure 50 position, then backrest control System connection 584 and cam connection 594 are all rotated in a clockwise direction.However, cam connection 594 is rotated with slightly higher speed, angleTherefore it is changed into 35.9 ° from 31.4 °.It is changed into 265 millimeters from 202 millimeters apart from D, and angleIt is changed into 24.1 ° from 24.2 °.

With further reference to Figure 52 A, if by the hypsokinesis of back 18, and it is arranged to high by waist regulation, then angle It is exactly 93.6 °, is then 202 millimeters apart from D.

Therefore, when back 18 is tilted backwards, coupler body 216 is bent.If however, radian is initially adjusted To a higher level, then by waist portions 242 from uprightly to reclined position increased radian be significantly bigger.This is Consider the arrangement that following facts is made：If user back when erectly taking one's seat is initially the state in an opposing straight, So when user's hypsokinesis, the radian at the back of user will not increase so much.Repeat：If used in stand up position The back of person is relatively straight, then can also keep relatively straight when the back of user is even if hypsokinesis, although from upright Position can slightly increase to radian during reclined position., whereas if the back of user is significantly to bend in stand up position , then it is initially relatively straight use that when user's hypsokinesis, the radian increase of lumbar region, which will be above its back, Person.

A pair of spring assemblies 614 (Figure 43 and Figure 44) are inclined from reclined position F toward stand up position E by backrest module 18 (Fig. 4) Pressure.As most clearly showed that in Figure 45, each spring assembly 614 includes the circular cylindrical shell with the end 620 of first end 618 and second Body 616.Each spring assembly 614 also includes a compression helical spring 622, the first male part 624 and the second male part 626. In the example in the figures, the first male part 624 is fixed to the first end 618 of housing 616, and the second male part 626 is fixed To the rod unit 628 extended by helical spring 622.Packing ring 630 is fixed to the distal end of rod unit 628, and abuts spiral bullet One end of spring 622, and the other end of helical spring 622 abuts the second end 620 of housing 616.First male part 624 is by a pivot Pin 632 is pivotably fixed to backrest supporting structure 542, to be pivotally displaced around pivotal point 634, and its pivot pin 632 is connect Close in the pivot hole 636 of backrest supporting structure 542, and the second male part 626 is pivotly coupled by axostylus axostyle 640 To moment arm displaceable member 638 (Figure 53-55), to be pivoted around pivotal point 642.Moment arm displaceable member 638 is suitable to low from one Tension force setting (Figure 57 A) will be biased or spring assembly 614 moves to high-tension setting (Figure 58 A), the bias group in high-tension setting The power that part 614 is applied to backrest module 18 increased relative to low-tension setting.

As shown in Figure 53-56, moment arm displaceable member 638 includes：Adjusting part 644；Moment arm shifts link assembly 646, control input component 500 is operably coupled to adjusting part 644 and allows operator to move bias assembly 614 by it Between the setting of low and high-tension；And regulation accessory part 648, it is suitable to reduce user as described below by moment arm Displaceable member 638 sets the input power put on control input component 500 being moved to needed for high-tension setting from low-tension Amplitude.

Adjusting part 644 includes pivot pin 650, and it includes a threaded hole, and it receives threaded adjustment axis Bar 652 is in wherein.Adjusting axostylus axostyle 652 includes the end 656 of first end 654 and second, and wherein first end 654 extends through base construction 502 hole 514, and guide to pivot around a longitudinal axis by bearing assembly 660.Pivot pin 650 by a link assembly 662 by Base construction 502 is supported (Figure 44), and link assembly 662 includes：A pair of links arm 664, pitman arm 664 each has：First end 666, it is pivotally coupled to the second male part 626 by pivot pin 632；With the second end 668, it is pivotly received by one Pivot pin 670 in the pivot hole 672 of base construction 502 is pivotally coupled to base construction 502 with around pivotal point 674 Pivot；And a hole 675, it receives the respective end of pivot pin 650.Pivot pin 650 along its length pivotly with connecting rod Arm 664 is coupled.

Moment arm displacement link assembly 638 prolongs between being included in the helical gear component 678 of control input component 500 and first The first drive shaft 676 stretched, and extend between the first helical gear component 678 and the second helical gear component 682 and incite somebody to action both The second drive shaft 680 being operatively coupled, wherein the second helical gear component 682 is connected to regulation axostylus axostyle 652.First driving Axle 676 includes first end 684, and it is operably coupled to control input component 500 by the first universal joint assembly 686, and the Second end 688 of one drive shaft 676 is to be operably coupled to the first helical gear component by the second universal joint assembly 690 678.In the example in the figures, the first end 684 of the first drive shaft 676 includes a female coupling of the first universal joint assembly 686 Part 692 is closed, and the second end 688 of the first drive shaft 676 includes a female coupling unit of the second universal joint assembly 690 694.First helical gear component 678 includes housing unit 696, and it accommodates the first helical gear 698 and the second helical gear 700 in it In.As illustrated, the first helical gear 698 includes the male coupling unit 702 with the one of the second universal joint assembly 690.Second The first end 706 of drive shaft 680 is coupled to the first helical gear component 678 by the 3rd universal joint assembly 704.Second driving The first end 706 of axle 680 includes a female coupling unit 708 of the 3rd universal joint assembly 704.Second helical gear 700 includes The 3rd universal joint assembly 704 male coupling unit 710 integral with it.Second end 712 of the second drive shaft 680 includes multiple The spline 714 of Longitudinal extending, it is engaged with the spline (not shown) of the corresponding Longitudinal extending of a coupler part 716.Coupling Clutch part 716 is by the 4th universal joint assembly 718 by the second end 712 of the second drive shaft 680 and the second helical gear component 682 couplings.4th universal joint assembly 718 includes housing unit 720, and it is accommodated：It is coupled to by the 4th cardan universal joint component 718 First helical gear 722 of coupler part 716, and it is fixed to second helical gear 724 at the second end 656 of regulation axostylus axostyle 652.Coupling Clutch part 716 includes female male part part 726, and it receives the male male part part with the one of the first helical gear 722 728。

In assembling, the adjusting part 644 (Figure 53 and 54) of moment arm displaceable member 638 is operable by base construction 502 Ground is supported, and control input component 500 (Figure 42) is by (the figure of control input component mounting portion 536 of seat support structure 522 44) it is operably supported.As a result, when seat support structure 522 is between completely erected position G and complete reclined position H During by movement, relative angle and distance between the adjusting part 644 of control input component 500 and moment arm displaceable member 638 Change.The arrangement of third and fourth universal joint assembly 704,718 and spline 714 and coupler 716 coordinates, and thinks these angles Relative change is turned into compensation with distance.

Moment arm displaceable member 638 (Figure 53 and 54) effect is the setting (Figure 57 A-58B) in low-tension and high-tension Between adjust bias assembly 614.Specifically, Figure 57 A show that bias assembly 614 is set with chair assembly 10 in straight in low-tension Vertical position, Figure 57 B show that bias assembly is set with chair assembly 10 in reclined position in low-tension, and Figure 58 A show bias Component 614 in high-tension setting with chair assembly 10 in upright position, and Figure 58 B show bias assembly in high-tension setting with Chair assembly 10 is in reclined position.To measure institute between the second end 620 of the housing 616 of pivotal point 642 and spring assembly 614 The distance 730 obtained is used as when moment arm displaceable member 638 is placed in low-tension setting and chair assembly 10 is in stand up position, Put on the reference of the decrement of spring assembly 614.Distance 730 ' (Figure 58 A) shows to work as moment arm displaceable member 638 with comparing In high-tension set and chair assembly 10 be in stand up position when, put on the compression stress of the increment of spring assembly 614.Use Person is put on by the way that moment arm displaceable member 638 is moved into high-tension setting from low-tension setting with adjusting by bias assembly 614 The amount of power on backrest supporting structure 542.Specifically, operator is moved with the input to control input component 500 by moment arm Position link assembly 646 driving adjusting part 644 regulation axostylus axostyle 652 rotate so that pivot axostylus axostyle 650 along regulation axostylus axostyle 654 Length advance, change so as to be saved whole period relative to base construction 502 in pivot axostylus axostyle 650 and be applied to spring assembly 614 On compression stress.Pivot axostylus axostyle 650 is in being placed in the side plate parts 734 for the associated side wall 508 for being attached to base construction 502 Groove 732 in advance.Here indicate, when moment arm displaceable member 638, in high-tension setting, chair assembly 10 is in uprightly Distance 730 ' during position be greater than when moment arm displaceable member 638 be in low-tension set and chair assembly 10 be in orthostatic position Distance 730 when putting, thus shows, when moment arm displacement member, which is in high-tension, to be set, is applied to the pressure on spring assembly 614 Contracting power ratio is big when low-tension is set.Similarly, distance 736 ' (Figure 58 B) is greater than distance 736 (Figure 57 B), causes bias The biasing force increase that component 614 is applied, and backrest module 18 is compeled toward stand up position from reclined position.Here indicate, by inclined The change changed corresponding to the bias torsion applied around second pivotal point 518 for the biasing force that pressure component 614 is applied, and In some configurations, bias torsion can also be changed by not changing the length or biasing force of bias assembly 614.

Figure 59 is around second pivotal point when backrest supporting structure 542 is moved between reclined position and stand up position The chart of 518 torsion forces applied, the torsion compels backrest supporting structure 542 toward stand up position from reclined position.In diagram In example, when backrest supporting structure 542 is to be in low-tension in stand up position and moment arm displaceable member 638 and set, bias Component 614 applies the torsion of about 652 in-lbs around second pivotal point 518, and when backrest supporting structure 542 is in reclined position And it is then about 933 in-lbs that moment arm displaceable member 638, which is in when low-tension is set, cause about 43% change.Similarly, When backrest supporting structure 542 is to be in high-tension in stand up position and moment arm displaceable member 638 and set, bias assembly 614 Apply the torsion of about 1.47E+03 in-lbs around second pivotal point 518, and be in reclined position when backrest supporting structure 542 and It is then about 2.58E+03 in-lbs that moment arm displaceable member 638, which is in when high-tension is set, causes about 75% change.By Back support structure 542 in it is upright between reclined position by it is mobile when, moment arm displaceable member 638 located at low-tension setting and High-tension setting between, the torsion force that bias assembly 614 applies produces considerable change, and this allows overall chair assembly 10 Appropriate back-supported forward is provided for the user of different height, weight.

Adjust (Figure 53 and 54) auxiliary operator of accessory part 648 and moment arm displaceable member 638 is set into shifting from high-tension Move to low-tension setting.Adjusting accessory part 648 includes helical spring 738, and it is fixed to base construction with mounting structure 740 502 antetheca 504, and snap part 742, it extends around the axostylus axostyle 632 fixed with pitman arm 664, and including a clamping part Divide 744, it limits the hole 746 for the free end 748 for catching helical spring 738.Helical spring 738 is applied with upward vertical direction Power F is on snap part 742 and axostylus axostyle 632, and in being attached on the axostylus axostyle 632 of pitman arm 664, so as to reduce user It is must be applied on when moment arm displaceable member 638 is moved into high-tension setting from low-tension setting on control input component 500 Input strength.

As described above, portions component 16 (Fig. 3) is can be in retracted position C and the position of expansion relative to control assembly 14 Vertically moved between D.As most clearly showed that in Figure 60 and 61, direct drive component 1562 includes drive component 1564 and connected Bar assembly 1566, the latter couples control input component 500 with drive component 1564, thus allows user's adjustment seat parts 16 relative to control assembly 14 linear position.In the example in the figures, seat supporting plate 32 (Figure 42) includes C-shaped guide rail 38, It wrapped and slidably engaged the corresponding guide ribs 1570 of the control panel 1572 of control assembly 14.A pair of C-shapeds, longitudinal direction The connection rail 1574 of extension is located in corresponding guide rail 38, and is coupled to seat supporting plate 32.The bushing of a pair of C-shapeds Part 1576 is in Longitudinal extending in connection rail 1574 and is positioned between connection rail 1574 and guide ribs 1570.Drive component 1564 include the rack member 1578 with multiple teeth 1580 extended downwardly.Drive component 1564 also includes having C-shaped section The rack guide member 1582 of configuration, it limits raceway groove 1584, and it is slideably received within rack member 1578 in wherein.Rack is guided Part 1582 includes the slot 1586 put along its length, and cooperatively receiving bearing part 1588 is in wherein for it, wherein such as void Parts of bearings 1588 shown in line shows the assembling pair between parts of bearings 1588 and the slot 1586 of rack guide member 1582 Standard, and in addition, the parts of bearings being shown in solid shows the assembling alignment between parts of bearings 1588 and rack member 1578.Replace Dai Di, parts of bearings 1588 can be formed and the integral part of rack guide member 1,582 1.Drive component 1564 also includes driving Moving axis 1590, its have with control input component 500 it is universal the first end 1592 that couples and radially divide each other with multiple Every tooth 1596 the second end 1594.In assembling, seat supporting plate 32 and control panel 1572 slideably coupling as described above Close, wherein rack member 1578 is fixed to the downside of seat supporting plate 32, and rack guide member 1582 is fixed in control panel In the raceway groove 1598 of 1572 upward opening.In operation, the input power applied by user to control input component 500 Drive component 1564 is sent to by link assembly 1566, so that the tooth 1596 of drive shaft 1590 is driven to prop up rack member 1578 tooth 1580 and cause rack member 1578 and seat supporting plate 32 relative to rack guide member 1582 and control panel 1572 Slide.

With further reference to Figure 62-64, chair assembly 10 includes a height adjustment assembly 1600, and it allows seat 16 and leaned on Vertical adjusting of the back of the body 18 relative to base assembly 12.Height adjustment assembly 1600 includes being vertically disposed in known manner Pneumatic linear actuator 28 in the central rods 26 of base assembly 12.

A kind of supporting structure 1602 is fixed to housing or base construction 502, and the upper part 1604 of pneumatic linear actuator 28 with Known mode is received in an opening 1606 of base construction 502 (Figure 64).Pneumatic linear actuator 28 includes a regulating valve 1608, It can be moved downward to discharge pneumatic linear actuator 28, to provide the regulation of height.Bellcrank 1610 has the arm upwardly extended 1630 and horizontal-extending arm 1640, the latter is configured to engage the relief valve 1608 of pneumatic linear actuator 28.Bellcrank 1610 can turn Support 1602 is attached to dynamicly.Cable assembly 1612 operationally interconnects bellcrank 1610 with left regulation wheel/bar 1620.Cable Component 1612 includes interior cable 1614 and outer cable or sheath 1616.Epitheca 1616 includes a ball accessory 1618, and it is in formation in support Rotatably received in spherical socket 1622 in 1602.Second ball accessory 1624 is connected to one end of interior cable 1614 1626.Second ball accessory 1624 can be revolved in the second spherical socket 1628 of the arm 1630 upwardly extended of bellcrank 1610 Turn ground to be received, to allow the rotary motion of cable-end during height is adjusted.

Second end of interior cable 1614 or the bag third wheel 1620 of outer end portion 1632, and end fitting 1634 is connected to interior cable 1614.In 1638, this point is connected to end fitting 1634 and seat structure to tension spring 1636.Spring 1636 is existed with a direction Tension force is produced on interior cable 1614, and when valve 1608 is released, cable 1614 is also with same direction displacement with by bellcrank 1610 Rotate.Spring 1636 does not produce enough power to activate valve 1608, but spring 1636 produces enough power with by bellcrank 1610 arm 1640 is biased so that being contacted with valve 1608.Like this, empty dynamic caused by component has tolerance or loosening quilt Eliminate.In operation, user rotates left regulation wheel 1620 manually, so that in producing tension force on interior cable 1614.This causes clock Shape crank 1610 rotates, so as to cause the pressing of arm 1640 and the valve 1608 of actuating pneumatic cylinder 28 of bellcrank 1610.Pneumatic cylinder A 28 contained spring (not shown) biases valve 1608 upwards, valve 1608 is moved to a non-cause after left regulation wheel 1620 is released Dynamic position.

Control input component 500 (Figure 42 and 65-67) includes the first control input component 1700 and the second control input group Part 1702, each of which is adapted the input come from user being conveyed to the chair structural member coupled with them and function Part, chair structural member and functor are accommodated in housing unit 1704.Control input component 500 includes backspace and drives component 1706, Overload clutch device assembly 1708, and knob 1710.Mechanism or component 1706 are driven in backspace, and it prevents from directly driving component 1562 (Figure 60 and 61) and portions component 16 are in the case of the input not from control assembly 1700 in retraction and expansion position Put and driven between C, D.Backspace is driven component 1706 and is received in the inside 1712 of housing unit 1704, and including adapter 1714, it includes the male part of the universal adapter at the second end 1594 coupled to drive shaft 1590 (Figure 61) at one end 1716, and include splined couplers 1717 in the other end.Cam part 1718 passes through clutch components 1720 and adapter 1714 Coupling.Specifically, cam part 1718 includes splined end 1722, and it is coupled to rotate with knob 1710, and with outer The cam end 1724 of cam face 1726.Clutch components 1720 (Figure 66 B) include a pair of splines 1723 inwardly arranged, they Slidably engage the splined couplers 1717 with cam face 1730, the cam face as described below with cam part Engage 1718 cam of outer cam surface 1726.Clutch components 1720 have the reception of ring 1732 that is locked with engaging Conical clutch surface 1719, retaining ring is locked in terms of relative to the rotation of housing unit 1704, and including correspondence clutch The conical clutch surface 1721 of the clutch surface 1719 of part 1720, they coordinate to form a cone clutch.Spiral shell Rotation spring 1734 biases clutch components 1720 toward the direction engaged with retaining ring 1732.

When not inputting, biasing spring 1734 forces the trochoidal surface of clutch components 1720 and the circle of retaining ring 1732 Conical surface engagement, so as to prevent " return and drive ", or only leads in the case of not from the input of the first control input component 1700 The power applied to portions component 16 posteriorly or anteriorly is crossed, portions component 16 is adjusted in retracting between position C, D of expansion. In operation, operator is through the first control input component 1700 actuating direct drive component 1562, by portions component 16 in retraction Moved between position C, D of expansion.The revolving force that specifically user puts on knob 1710 is transmitted from knob 1710 To cam part 1718.When cam part 1718 is rotated, the outer cam surface 1726 of cam part 1718 acts on clutch On the cam face 1730 of part 1720, so as to overcome the biasing force of spring 1734 and force clutch components 1720 to leave engagement Position, wherein clutch components 1720 depart from retaining ring 1732.Then, revolving force is communicated to clutch from cam part 1718 Part 1720 is down to adapter 1714, and the latter's through connecting rod component 1566 is coupled to direct drive component 1562.

Here indicate, a small amount of tolerances in the first control input component 1700, in clutch components 1720 in engagement and de- When offing normal between putting by movement, it is allowed to which cam part 1718 is slightly moved (or " rocking ") in rectilinear direction and direction of rotation.Bag Rotating annular damping element 1736 containing thermoplastic elastomer (TPE) (TPE) is located in the inside 1712 of housing 1704, and attached It is connected to clutch components 1720.In the example in the figures, damping element 1736 is oppressed simultaneously by the inwall against housing unit 1704 Frictionally engaged with it.

First control input component 1700 also includes the second turn-knob 1738, and it is adapted to allow user as described below The upright position of chair assembly is adjusted between the position A and elevated position B of reduction.

Second control input component 1702 is adapted to adjust the tension force put in hypsokinesis in backrest module 18, and Control the rear inclination of the backrest module 18.First knob 1740 is operably coupled to by moment arm displacement link assembly 646 Moment arm displaceable member 638.Specifically, the second control input component 1702 includes male coupling unit 1742, itself and moment arm Shift the universal coupling unit 692 of female (Figure 53 and 55) coupling of the axle 676 of link assembly 646.

Second knob 1760 is adapted with inclination after adjusting backrest module 18 through cable assembly 1762, and cable assembly revolves second Button 1760 is operably coupled to variable back stop component 1764 (Figure 67).Cable assembly 1762 leads cable structure including first 1766th, the second cable pipe 1770 led cable structure 1768 and extended between them, its slidably receive actuation cable 1772 in Wherein.Cable 1772 includes distal end 1774, and it is fixed relative to base construction 502, and the side from helical spring 1778 toward 1776 To bias.Variable back stop component 1764 include with multiple vertical staged steps 1782 retainer 1780, relative to The supporting support 1784 that portions component 16 is fixedly supported, and slide unit 1786, it is slidably coupled to the support branch Frame 1784 is fixedly coupled to the stop component 1780 to be slided in fore-and-aft direction 1788 by a pair of screws 1790.Cable 1772 are clamped between stop component 1780 and slide unit 1786, so that vertically moving for cable 1772 causes stop component 1780 move in fore-and-aft direction 1788.In operation, user adjusts stop component by the input to the second knob 1760 1780 position, to adjust inclination after possible backrest.When backrest module 18 is moved from stand up position toward reclined position, stop The step selected in multiple steps 1782 of part 1780 contacts the trailing edge 1792 of base construction 502, to limit available backrest Inclination afterwards.

Ref. No. 10e (Figure 68) refers to another embodiment of chair assembly or seat arrangement.Due to the seat cloth Put that 10e is arranged with previously described seat or chair assembly 10 is similar, thus with the part class that occurs in Fig. 1 and 2 and Figure 68 As part by identical correspondence Ref. No. represent, simply have suffix " e " in the numbering of the latter.In the example shown, Seat arrangement 10e includes the headrest assemblies 2000 pivotly coupled with backrest module 18e.Headrest assemblies 2000 include support group Part 2002 and headrest part 2004.Pass through the first articulated mounting as best seen from, support component 2002 is included in Figure 69 and 70A 2008 may be pivotably coupled to backrest module 18e support member 2006.Support member 2006 has generally U-shaped construction, includes transverse direction The arm 2012 that the basal part 2010 of extension and a pair are upwardly extended.Each arm includes vertical component effect 2014 and terminal part 2016, The terminal part 2016 slightly extends upwards and forward from the vertical component effect 2014 of association.First articulated mounting 2008 includes a pair of hinges Fitting 2018, the articulated elements 2018 makes support member 2006 may be pivotably coupled to backrest module 18e, so that with direction 2022, around The first pivotal line 2020 extended laterally rotates.Each articulated elements 2018 includes friction lock type articulated elements, wherein support member Frictional force of 2006 rotation position relative to backrest module 18e in articulated elements 2018 is held in position in.Specifically, Articulated elements 2018 makes support member 2006 be coupled to coupler body 216e top 218e (Figure 71).In the example shown, backrest Housing 216e includes groove 2021, and comfortable part 298e includes groove 2023, and each groove is used to accommodate basal part 2010 in it In.Support component 2002 is also comprising support lid 2025, for covering before basal part 2010, and the masking backrest shell of bonnet 2027 The body 216e back side.In regulation, frictional force in articulated elements 2018 by user headrest assemblies 2000 are applied it is sufficiently large Power overcomes.After adjustment, the power that user applies is released, and the frictional force in articulated elements 2018 makes support member 2006 be maintained at institute The rotation position of selection.Note that without outside or independent releasable latch assembly make support member 2006 relative to Backrest module 18e is held in or is fixed on rotation position.

Support component 2000 also includes the second articulated mounting 2024, and second articulated mounting 2024 includes guide 2026, The guide 2026 has bluff body portion 2028 and a pair of tubulated ends 2030, and every end in this pair of tubulated ends 2030 is each With outwardly open aperture 2032.Second articulated mounting 2024 is also comprising a pair of (figures of friction lock type articulated mounting 2033 72), this pair of friction lock type articulated mounting 2033 makes headrest part 2004 be rotatably coupled to support member 2006, with direction 2036 Rotated (Figure 69) around the second pivotal line 2034 extended laterally.Each articulated mounting 2033 (Figure 72) includes articulated elements 2038, should Articulated elements 2038 is included：First end 2040, the pressure of first end 2040 is assemblied in one in the end 2030 of guide 2026 Association aperture 2032 in, and be fixed to rotate；And second end 2042, the pressure of the second end 2042 is assemblied in branch The aperture 2044 of one in the terminal part 2016 of the arm 2012 of support member 2006 is interior and is fixed to rotate.Articulated mounting 2033 allow headrest part 2004 to be pivoted around the second pivotal line 2034 relative to support member 2006.As described above, each articulated mounting 2033 include friction lock type articulated elements, wherein frictional force of the rotation position of headrest part 2004 in articulated mounting 2033 is kept In position.In regulation, the sufficiently large power that the frictional force in articulated mounting 2033 is applied by user to headrest part 2004 Overcome.After adjustment, the power that user applies is released, and the frictional force in articulated mounting 2033 makes headrest part 2004 be maintained at institute The rotation position of selection.Note that without outside or independent releasable latch assembly make headrest part 2004 relative to Support member 2006 keeps or is fixed on rotation position.Cap 2046 is held to be located in the end in aperture 2044.Allow part 2004 of resting the head on Permit with the dual pivotal adjustment that support member 2006 is pivoted and repositioned around the first pivotal line 2020 and the second pivotal line 2034 Perhaps rest the head on and re-position at each numerous position and orientation relative to backrest module 18e and the people being sitting in seat arrangement 10e, such as Lower done further describes.As one kind selection, headrest assemblies can include support member, and the support member has single arm And/or for making support member be coupled to the single articulated elements of backrest module and/or for making headrest part be coupled to support member Single articulated elements.

Headrest part 2004 also by support member 2006 it is vertically adjustable support, to be adjusted in direction 2047.First In embodiment, headrest part 2004 (Figure 70 A) is included：Frame unit 2048；Subframe part 2050, the subframe part 2050 is releasedly It is coupled to frame unit 2048；And reticulated covers 2052, reticulated set 2052 is attached to framework by subframe part 2050 Part 2048.Although reticulated set 2052 is contained in this example, it is noted that can also be using non-mesh fabric and other Material.Set 2052 is included：Front support face 2054 is faced, this faces the head that front support face 2054 is configured to support the user taken a seat And/or neck；And bag edge 2056, the bag edge 2056 extends back from supporting surface 2054.A pair of horizontal mouldings or attaching Top and bottom of the bar 2058 along bag edge 2056 is disposed and fixed, and a pair of vertical mouldings or attaching bar 2059 are along Bao Yuan 2056 side is disposed and fixed.In assembling, the periphery of bag edge 2056 (Figure 73) the parcel subframe part 2050 of set 2052 Edge, and attaching bar 2058 is coupled to the rear surface of subframe part 2050.As in Figure 73-75 best seen from, horizontal attaching Bar 2058 has the arrow-like cross-sectional configuration comprising enlarged head 2061 respectively, and the enlarged head 2061 is engaged along subframe 2050 Upper limb and multiple plano-convexs first 2063 for separating of lower edge and multiple configuration plush coppers 2065 engage, and vertical attaching bar 2059 engages edge Multiple plano-convexs first 2065 that the side of subframe 2058 is separated.Tension force in reticulated set 2052 makes vertical attaching bar 2059 Remained engaged with plano-convex first 2065, and it can be made to be held between plush copper 2065 and outer wall 2049.Then, subframe 2050 Releasedly frame unit 2048 is coupled in snap-in so that bag edge 2056 and attaching bar 2058 are clipped in and are hidden in subframe part Between 2050 and frame unit 2048.

In a second embodiment, the subframe 2050 of the first embodiment shown in Figure 70 A and reticulated set 2052 can be with Replaced by rosette 2051 (Figure 70 B), foam element 2053 and outer fabric sleeve 2055.In assembling, set is clipped in foam element 2053 In the case of between 2055 and ring 2051, fabric sleeve 2055 is fixed to rosette 2051 by multiple attaching bars 2057.Then, by ring 2051 are attached to framework 2048 so that the edge of attaching bar 2057 and fabric sleeve 2052 be clipped in rosette 2051 and framework 2048 it Between.

Frame unit 2048 is included：Periphery extends frame section 2060, and subframe part 2050 is attached to periphery extension frame section 2060；And extend vertically, the arcuation central part 2062 of lordosis.Central part 2062 (Figure 70) is included：Extend vertically elongated slot 2070； First group of backward-facing, the plush copper 2072 being spaced vertically apart from；And second group of backward-facing, the plush copper 2074 that is spaced vertically apart from, this second group Backward-facing, relative to first group plush copper 2072 of the plush copper 2074 being spaced vertically apart from are located at the offside of groove 2070.Note that first group it is convex First 2072 each plush copper in vertical direction offsets each plush copper of second group of plush copper 2074.A pair of fastening parts positioned at its end 2078 are fixed to a pair of flat springs 2076 planar portions 2028 of guide 2026.Each spring 2076 also includes junction surface 2080, the junction surface 2080 is located between fastening part 2078 and inclined towards first group of plush copper 2072 and second group of plush copper 2074 Pressure.Attachment 2082 is attached to guide 2026 by a pair of screws 2086 so that central part 2062 is slideably clipped in guide Between 2026 and attachment 2082, and sliding motion is oriented to by the pad 2085 positioned using groove 2070.Cover 2083 snap-ins simultaneously And the back side of encapsulating central part 2062.

In regulation, user to headrest part 2004 by applying upward or downward power come relative to support component 2002 regulation headrest parts 2004 so that in vertical direction 2047 vertically regulation headrest part 2004 and make headrest part 2004 around The pivot area 2079 separated with headrest part 2004 and support component 2002 is pivoted.By making the engagement of one in flat spring 2028 Portion 2080 is engaged with one group of plush copper associated 2072,2074, and headrest part 2004 is held in selected upright position.As above institute State, the plush copper in first group of plush copper 2072 and second group of plush copper 2074 is mutually shifted in vertical direction so that only one group plush copper Engaged by spring 2076, so as to improve effective vertical adjusting of headrest part 2004.As one kind selection, plush copper 2072, 2074 it is aligned with each other when, by making spring 2076 be mutually shifted in vertical direction, can provide as offset in vertical direction Plush copper 2072,2074 provide headrest part 2004 increment type skew controllability.In another embodiment, plush copper 2072nd, 2074 it can be mutually shifted in vertical direction, and spring 2076 is mutually shifted in vertical direction.

It is varied that the dual pivotal adjustment of headrest assemblies 2000 and vertically adjustable property allow headrest assemblies 2000 to be located at Point position between and assume it is many construction the different user of multiclass is adapted in the way of shown in Figure 78 A-78K.For example, can be all Headrest assemblies 2000 are adjusted between forward facing position as shown in Figure 78 I and the rearward position such as shown in Figure 78 J, at this to anteposition Put, support component 2002 rotates to forward facing position relative to backrest module 18e, and in vertical direction, by part 2004 of resting the head on The position reduced relative to support component 2002 is adjusted, in the rearward position, in vertical direction, headrest part 2004 is adjusted To relative to the most most elevated position of support component 2002, and support component 2002 is set to be rotated to relative to backrest module 18e Rearward position.In these and other embodiment, headrest part 2004 can rotate around support component 2002 so that itself and support Component 2002 or backrest module 18e produce physical contact.For example, in the position shown in Figure 78 I, the lower edge for part 2004 of resting the head on (as positioned) can produce with backrest module 18e preceding surface and contact, and in the position shown in Figure 78 K, headrest assemblies 2004 lower edge (as positioned) can be produced with the rear surface of backrest module 18e or support component 2002 and contacted.

In certain embodiments, one or more block can be placed in backrest module 18e, support component 2002 and/or In person's headrest assemblies 2000, to limit ad-hoc location.For example, block 2100 (Figure 78 K) can be set, to prevent support component 2002 rotate to more than level orientation backward.Similarly, block 2102 (Figure 78 G) can be set, to prevent support component 2002 Rotate to the front of selected position.

In the foregoing description, those skilled in the art is it is easily understood that the design disclosed in not departing from also can be right Each component and element of the present invention makees various alternative combinations, to the present invention, various modifications may be made, such as by hair disclosed herein Bright concept is applied to vehicle seat, stadium seat, household seat, movie seat and analog.Such modification will by regarding Make to be included in appended claim, unless these claims clearly stated by its word it is really not so.

Claims (33)

1. a kind of headrest assemblies for being adapted to be coupled to seat arrangement, including；

Support meanss, the support meanss are configured to may be pivotably coupled to the backrest module of seat arrangement, with around the first pivot Line moves pivotally；

Rest the head on part, the headrest part may be pivotably coupled to the support meanss, with around the separated with first pivotal line Two pivotal lines move pivotally；And

The headrest part is coupled to the support meanss by carriage, the carriage, and the carriage is constructed Into permission along curved path the headrest part is adjusted relative to the support meanss vertical sliding motion.

2. headrest assemblies according to claim 1, wherein the carriage is configured so as to fill when using described slide Put vertically adjust it is described headrest part when, the headrest part around with it is described headrest part and the headrest support at least one every The pivot area opened is pivoted.

3. headrest assemblies according to claim 2, wherein the carriage is configured so as to fill when using described slide Put when vertically adjusting the headrest part, the headrest part around with the headrest part and the pivot that separates of headrest support Area is pivoted.

4. the headrest assemblies described in any one in claim 1-3, wherein when relative to the back rest vertically During the regulation headrest part, the distance between first pivotal line and described second pivotal line are held substantially constant.

5. the headrest assemblies described in any one in claim 1-4, wherein the support meanss include the first friction Articulated mounting, the first friction articulated mounting is configured to make the support meanss may be pivotably coupled to the backrest module.

6. headrest assemblies according to claim 5, wherein the headrest part rubs articulated mounting pivotly by second It is coupled to the support meanss.

7. the headrest assemblies described in any one in claim 1-6, wherein the headrest part includes arcuation orbit portion, The arcuation orbit portion is slidably engaged by the support meanss.

8. the headrest assemblies described in any one in claim 1-7, wherein the support meanss are biased comprising spring Fastener, the fastener of spring bias engages the headrest assemblies using frictional force so that can multiple upright positions it Between be selectively adjusted the headrest assemblies relative to the backrest module.

9. headrest assemblies according to claim 8, wherein the headrest part includes multiple lock pins, the multiple lock pin is mutual The fastener that separates and can be biased by the spring is selectively engaged so that the headrest part be held in it is described vertical At position.

10. headrest assemblies according to claim 9, wherein the multiple lock pin is a pair of multiple lock pins, it is the pair of Multiple lock pins include more than first lock pin and more than second lock pin, the lock pin in more than first lock pin is by described the In more than two lock pin the lock pin skew so that when vertically adjusting the headrest, the fastener alternately with it is described More than first lock pin and more than second lock pin engagement.

11. the seat arrangement of the headrest assemblies described in any one in a kind of 1-10 including claim, and also include：

Portions component, the portions component is adapted to support user；And

Backrest module, the backrest module is operatively coupled to the portions component, and the backrest module is adapted to branch User is supportted, wherein the headrest assemblies are operatively coupled to the backrest module.

12. a kind of headrest assemblies for being adapted to be coupled to seat arrangement, including：

Support meanss, the support meanss are operatively configured to be coupled to the backrest module of seat arrangement；

Headrest part, the headrest part has arc support portion；And

Carriage, the carriage makes the supporting part of the headrest part be slidably coupled to the support meanss, So that causing the headrest part along curved path relative to the branch relative to part of being rested the head on described in the supporting part slidable adjustment Support arrangement is advanced.

13. headrest assemblies according to claim 12, wherein the carriage is configured so as to slide when using described When device vertically adjusts the headrest part, at least one of the headrest part in being supported with the headrest part and the headrest The pivot area separated is pivoted.

14. headrest assemblies according to claim 13, wherein the carriage is configured so as to slide when using described When device vertically adjusts the headrest part, the headrest part is around the pivot separated with the headrest part and headrest support Axle area is pivoted.

15. the headrest assemblies described in any one in claim 12-14, wherein be configured to can pivot for the support meanss It is coupled to the seat back of the body with turning, to be moved pivotally around the first pivotal line.

16. headrest assemblies according to claim 15, wherein the headrest part may be pivotably coupled to the support meanss, To be moved pivotally around the second pivoting point.

17. the headrest assemblies described in any one in claim 15 and 16, wherein the support meanss include first Rub articulated mounting, and the first friction articulated mounting is configured to make the support meanss may be pivotably coupled to the backrest group Part, to be moved pivotally around first pivotal line.

18. the headrest assemblies described in any one in claim 12-17, wherein the headrest part utilizes the second friction Articulated mounting may be pivotably coupled to the support meanss.

19. the headrest assemblies described in any one in claim 12-17, wherein the support meanss are inclined comprising spring The fastener of pressure, the fastener of the spring bias engages the headrest assemblies using frictional force so that the headrest assemblies structure Cause to be selectively adjusted relative to the backrest module between multiple upright positions.

20. headrest assemblies according to claim 19, wherein the headrest part includes multiple lock pins, the multiple lock pin is mutual The fastener that is spaced and can be biased by the spring is selectively engaged so that the headrest part be held in it is described vertical At position.

21. headrest assemblies according to claim 20, wherein the multiple lock pin is a pair of multiple lock pins, it is the pair of Multiple lock pins comprising more than first lock pin and more than second lock pin, the lock pin in more than first lock pin will be described In more than second lock pin the lock pin skew so that when vertically adjusting the headrest, the fastener alternately with institute State more than first lock pin and more than second lock pin engagement.

22. the seat arrangement of the headrest assemblies described in any one in a kind of 12-21 including claim, and also include：

Portions component, the portions component is adapted to support user；And

Backrest module, the backrest module is operatively coupled to the portions component, and the backrest module is adapted to branch User is supportted, wherein the headrest assemblies are operatively coupled to the backrest module.

23. a kind of headrest assemblies for being adapted to be coupled to seat arrangement, including：

Support meanss, the support meanss are configured to may be pivotably coupled to the backrest module of seat arrangement, with around the first pivot Line moves pivotally；

Rest the head on part, the headrest part may be pivotably coupled to the support meanss, with around the separated with first pivotal line Two pivotal lines move pivotally, wherein allow it is described headrest part around second pivotal line pivot independently of the support meanss around The pivot of first pivotal line；And

Coupling device, the coupling device is configured to make the headrest part be operatively coupled to the support meanss so that permit Perhaps described headrest part is pivoted around with the pivot area that first pivotal line and second pivotal line are separated.

24. headrest assemblies according to claim 23, wherein the pivot area and the headrest part and the support meanss In at least one separate.

25. headrest assemblies according to claim 24, wherein the pivot area and the headrest part and the support meanss All separate.

26. the headrest assemblies described in any one in claim 23-25, wherein when vertical relative to the back rest When ground adjusts the headrest part, the distance between first pivotal line and second pivotal line are held substantially constant.

27. the headrest assemblies described in any one in claim 23-26, wherein the support meanss are rubbed comprising first Articulated mounting is wiped, the first friction articulated mounting is configured to make the support meanss may be pivotably coupled to the backrest group Part.

28. headrest assemblies according to claim 27, wherein the headrest part is pivotable using the second friction articulated mounting It is coupled to the support meanss in ground.

29. the headrest assemblies described in any one in claim 23-28, wherein the headrest part includes arcuation track Portion, the arcuation orbit portion is slidably engaged by the support meanss so that relative to described in the orbit portion slidable adjustment Support meanss make the headrest portion be pivoted around the pivot area.

30. the headrest assemblies described in any one in claim 23-28, wherein the support meanss are inclined comprising spring The fastener of pressure, the fastener of the spring bias engages the headrest assemblies using frictional force so that the headrest assemblies structure Cause to be selectively adjusted relative to the backrest module between multiple upright positions.

31. headrest assemblies according to claim 30, wherein the headrest part includes multiple lock pins, the multiple lock pin is mutual The fastener that is spaced and can be biased by the spring is selectively engaged so that the headrest part be held in it is described vertical At position.

32. headrest assemblies according to claim 31, wherein the multiple lock pin is a pair of multiple lock pins, it is the pair of Multiple lock pins include more than first lock pin and more than second lock pin, the lock pin in more than first lock pin is by described the In more than two lock pin the lock pin skew so that when vertically adjusting the headrest, the fastener alternately with it is described More than first lock pin and more than second lock pin engagement.

33. the seat arrangement of the headrest assemblies described in any one in a kind of 23-32 including claim, and also include：

Portions component, the portions component is adapted to support user；And

Backrest module, the backrest module is operatively coupled to the portions component, and the backrest module is adapted to branch User is supportted, wherein the support meanss of the headrest assemblies may be pivotably coupled to the backrest module.