The specific embodiment
The theme of the utility model embodiment is specifically described as and meets legal requirements at this.But this description itself does not limit the scope of the claims.On the contrary, the technology that protection theme can be existing or following from other is in combination to comprise and the embodied in other of similar different key elements described herein or factor combination.
Referring to Fig. 1, according to an embodiment of the present utility model, seat unit 10 has a portion 12, backrest 14, supporting leg 16 and 18, and link gear 20, and described link gear arranges present portion 12 belows and illustrates in greater detail in Fig. 2-4.In addition, seat unit 10 can comprise one or more arm (not shown) and can be attached to larger seat unit as in sofa or modularized seat unit.
In the case of pivotal arm (pivot-over-arm, POA) type chair, arm interconnects with seat portion and link gear 20, makes supporting leg 16 and 18 can directly not support described arm.The lower section frame of supporting leg 16 and 18 supported seat unit 10 can be moved a portion 12 together with described arm.In POA configuration, backrest 14 can be included in that handrail top is extended and when backrest is swung back around the alar part of the rear portion of handrail pivotable.Being known as in the alternate configuration of framework cover framework (frame-within-a-frame) type, described arm maintains static with respect to seat portion 12, and seat portion can regulate by link gear.In this embodiment, seat portion 12 is movable at the conditioning period of seat unit 10, but described arm keeps relatively maintaining static.
In one embodiment, backrest 14 extends and is connected to rotationally link gear 20 from the rear section of seat unit 10.In addition, as will be below with reference to Fig. 2-4 in greater detail, link gear 20 comprises the footrest component that makes one or more footstools stretch and regain.In each embodiment, link gear 20 is arranged to hingedly to activate and the motion between closed (packing up) position, extended position and layback position of control block portion 12, backrest 14 and footstool.
In an embodiment of the present utility model, seat unit 10 comprises the high supporting leg design with specific size characteristic.For example, Fig. 1 shows first size 22, and it comprises when link gear 20 distance between a part for seat portion installing plate and the bottom of front leg strut 16 at link gear 20 during in closure or stowed position.In one embodiment, first size is in the scope of approximately 11 inches to approximately 12.5 inches.Fig. 1 illustrates the second size 24 of the height that comprises supporting leg 16.In an embodiment of the present utility model, the second size 24 is in the scope of approximately 5 inches to approximately 6 inches.Other size of the present utility model is described in the application's other parts, for example the distance between present portion's installing plate and baffle-type footstool (flipper ottoman) support when link gear is packed up.
If without the utility model, comprise that the high supporting leg chair of regulatory function of the present utility model (for example, leg rest stretches/packs up with backrest and swings back/lean forward) does not meet first size 22 and the second size 24 conventionally.For example, if without the utility model, when the height of seat portion installing plate comprises first size, be just difficult on the ground have sufficient gap and make leg rest stretch and pack up.But the utility model comprises the link gear with Compact Design, it allows the enough lowlands of seat portion installing plate to locate to meet first size, and allows the motion of seat unit between closing position, extended position and layback position.
Fig. 2-4 illustrate the configuration of the link gear 20 of the three position back-tilting type seat units (calling " seat unit " in the following text) for regulating manually or automatically, and this seat unit is designed to be configured to high leg-type seat unit in each embodiment.As mentioned above, link gear 20 is arranged to the motion of seat portion, backrest and the footstool that can hingedly activate and control seat unit.That is to say, link gear 20 can be adjusted to closing position (Fig. 2), stretch (TV) position (Fig. 3) and layback position (Fig. 4).In layback position, as mentioned above, backrest rotates backward and setovers with angle of inclination backward, and described angle is obtuse angle with respect to seat portion.
Between closing position, extended position and layback position, carry out conditioning period, link gear 20 utilizes various connectors (connecting rod) and pivotal part.The position of the geometric configuration of connector and their interconnection makes the high leg seating unit in three positions with lower height of seat can have advantage.Equally, lower height of seat is limited by first size 22 at least in part, and wherein the distance between the end 16a of supporting leg 16 and seat portion installing plate is in the scope of approximately 11 inches to approximately 12.5 inches.When meeting this first size, just utilize link gear 20 to realize the final height of seat (that is, comprising seat cushion) of approximately 17 inches to approximately 18.5 inches.
Substantially, link gear 20 comprises multiple connecting rods, and described multiple connecting rods are arranged in the motion that activates and control seat unit between closing position, extended position and layback position between moving period.Conventionally, in order to realize the hinged actuating of link gear 20, each connecting rod can be connected to one or more other connecting rods or the plate that comprise link gear 20 pivotly.What be to be understood that and recognize is, between these connecting rods, can be rendered as various configurations by pivotable connector (being depicted as in the drawings pivotal point), the combination of for example pivotal pin, bearing, traditional installation hardware, rivet, bolts and nuts or known any other suitable securing member in woodwork industry.In addition, the shape of connecting rod and support can change, as the position of some pivotal point also can change.Be to be understood that, for example, when connecting rod to other element (is called as pivotly " connection ", connecting rod, support, framework etc.), with other element " interconnection ", " attached " on other element etc. time, can expect that connecting rod and each element can be in direct contact with one another, or also can there is other element, as element between.
In operation, link gear 20 guides the rotational motion of backrest, seat portion and footstool.In a kind of exemplary configuration, these motions are controlled by the link gear (one of them illustrates herein and represents with Reference numeral 20) of a pair of mirror image substantially, and described a pair of link gear comprises the layout of the connecting rod of interconnection pivotly.Link gear about a plane extending longitudinally with opposite relation setting, described plane between described a pair of opposed arm to a point seat unit.So, description below will only concentrate on one of them link gear 20, and described content is applicable to another complementary linkage unit comparably.
With reference to Fig. 2-4, the vantage point in seat unit shows according to the side direction view of the link gear 20 of the utility model embodiment.In one embodiment, link gear 20 comprises footrest component 26, seat portion installing plate 28, substrate 30 and seat adjustment assembly 32.Footrest component 26 comprises that being arranged in seat unit conditioning period between extended position and closing position makes respectively footstool stretch and multiple connectors of packing up.Seat portion installing plate 28 is configured to be fixedly mounted in a portion, and jointly limits portion's area supported (not shown) with opposed seat portion installing plate.Seat adjustment assembly 32 comprises back installation connecting element 34 and multiple other connector.In general, seat adjustment assembly 32 is suitable for making to be connected to the backrest layback on back installation connecting element 34 and leaning forward.In addition, seat adjustment assembly 32 is suitable for making to be connected to the seat portion lateral translation on portion's installing plate 28 and angularly regulating.In addition, in the automatic embodiment of seat unit, seat adjustment assembly 32 is connected on the crossbeam for example, being regulated linearly or rotationally by linear actuators (, motor mechanism), is conducive to thus seat unit and moves in response to the electronically actuated of user's initiation.
In each embodiment, one or more supporting legs 16 and 18 are suitable for vertically erecting and seat unit being bearing on lower surface.In each embodiment, in framework cover frame-type chair, supporting leg is arranged on arm, and supporting leg is arranged in lower arm substrate in pivotal arm type chair.Sometimes, in arm or lower arm substrate, underframe is installed.Substrate 30 is for example arranged on, on pipe across underframe (, front and back both).Seat portion installing plate 28 interconnects via the each connector and the substrate 30 that comprise seat adjustment assembly 32, seat adjustment assembly carries out conditioning period between closing position, extended position and layback position makes portion translation on substrate 30, incrementally regulates the angle of inclination between them simultaneously.
With reference to Fig. 2-4, footrest component 26 will be described in more detail.Footrest component 26 comprises rear footstool connector 35 and front footstool connector 36, and the two is attached to portion's installing plate at pivot part 38 and 40 respectively.Footrest component 26 is also included in pivot part 44 and is attached to the main footstool connector 42 of rear footstool connector 35, and before pivot part 48 is attached to the second footstool connector 46 of footstool connector 36.The second footstool connector 46 and main footstool connector 42 are all attached to foot-rest bracket 50, and main footstool connector 42 is also attached to middle footstool support 52.Foot-rest bracket is used for supporting leg rest 51(Fig. 1), and except leg rest 51, middle footstool support 52 is also for supporting another footstool 53(Fig. 1).Footstool support 52 in the middle of middle footstool control connection part 57 is attached to from the second footstool connector 46.Footrest component 26 also comprises the baffle controls connector 54 that is attached to the second footstool connector 46 and is attached to baffle-type footstool support 56, and baffle-type footstool support 56 can be used for supporting another leg rest 59(Fig. 1).
As mentioned above, footrest component 26 is for activating and making described multiple leg rest 51,53 and 59 move to extended position (Fig. 3) from closing position or stowed position (Fig. 1 and 4).So, link gear 20 also comprises that the leg rest that is attached to the locking connector 60 of front footstool connector 36 and is attached to rear footstool connector 35 drives connector 62.Locking connector 60 is also attached to lock bracket 64, and lock bracket 64 is attached to driving tube 66 and locking installing plate 68.When activating (manual or use motor) driving tube 66, lock bracket 64 clockwise rotates (in the view being provided by Fig. 2) around the pivot part 70 that lock bracket 64 is attached to locking installing plate 68.This motion of lock bracket 64 drives locking connector 60 forward, and this makes again front footstool connector 36 clockwise rotate around front footstool connector 36 is attached to a pivot part for portion's plate 28 40.Meanwhile, drive connector 62 and rear footstool connector 35 to activated, rear footstool connector 35 clockwise rotates around rear footstool connector 35 is attached to a pivot part for portion's plate 28 38 in this case.
Rear footstool connector 35 and front footstool connector 36 make winner's footstool connector 42 and the second footstool connector 46 along with they are stretched to the extended configuration of Fig. 3 and rotate counterclockwise from the clockwise rotating of closing position of Fig. 2 then.In addition, middle footstool control connection part 57 and middle footstool support 52 clockwise rotate around pivot part 72 and 74 respectively, to move to extended position (Fig. 3) from closing position (Fig. 2).In addition, baffle controls connector 54 and baffle-type footstool support 56 clockwise rotate around pivot part 76 and 78 respectively, to move to expanded position (Fig. 3) from closing position (Fig. 2).
As previously mentioned, the Compact Design of link gear 20 allow at seat unit, comprise first size 22 and second size 24(Fig. 1) time footrest component 26 from closing position, move to extended position.Compact Design is the function of the various geometric configurations (for example, distance between length, the pivot part of the shape of connecting rod and spacing, connecting rod etc.) of the connector that comprises in footrest component.In one embodiment, these features as in Figure 2-4.
The Compact Design of linkage unit 20 also provides other benefit.For example, in one embodiment, the baffle-type footstool plate (not shown) that described design allows to be arranged on baffle-type footstool support 56 extends to the width approximate with main toe board (not shown).If without this technology, baffle-type footstool plate will dwindle and can not extend to obtain so wide (from left to right).In another embodiment, described design meets the 3rd size 75 that the distance between present portion's mounting flange 31 and the mounting surface of baffle-type footstool support 56 limits when in the close position by assembly.In one embodiment, the 3rd size is about 3.625 inches.
Footstool 51,53 and 59 and the motion of footrest component 26 from closing structure to extended position have been described.By making driving tube 66 be conducive to these elements to be packed up or closed along contrary direction (that is, the counter clockwise direction in Fig. 3) motion, this so that make above-mentioned movement reversal.
Continuation, with reference to accompanying drawing 2-4, will be described seat adjustment assembly 32 now in more detail.As previously mentioned, seat adjustment assembly 32 is attached to substrate 30 by seat portion plate 28.In addition, seat adjustment assembly 32 moves forward portion's plate 28 when backrest 14 moves to the position of more layback, and when backrest 14 moves to the position of more leaning forward, makes portion's plate 28 move backward.
Seat adjustment assembly 32 comprises that back drives connector 80, after crank 82 and back toggle connector 84.Back drives connector 80 to be attached to back mounting bracket 34 and to be attached to after crank 82.Mounting bracket 34 is attached to the back seat portion support 81 extending from seat portion installing plate 28.After crank 82 is attached to a rear portion of portion's installing plate 28 86 and is attached to back toggle connector 84 at pivot part 83, and back toggle connector 84 is attached to substrate 30.
Seat adjustment assembly 32 also comprises rear hinge connector 88 and front hinge connector 90, and the two is all attached to roller connector 92.Roller connector 92 comprises two rollers 94 and 96, and they are connected in roller connector 92 rotationally.Roller 94 and 96 is arranged between roller connector 92 and substrate 30, and roller 94 and 96 is arranged on one or more track of substrate 30.
As previously mentioned, seat adjustment assembly 32 is conducive to the layback of backrest 14 and leans forward, and portion's installing plate 28 is moved around with respect to substrate 30.Now will the operation of seat adjustment assembly 32 be described in more detail.
Referring to Fig. 3, seat portion installing plate 28 is owing to moving and being regulated downwards from closing position to extended position.This at least a portion moving down is to drive connector 62 to cause by the leg rest that rear hinge connector is worked.That is to say, when link gear moves from closing position to extended position, rear hinge connector rotates counterclockwise, and makes thus portion's installing plate move down.During to the motion of layback position, back mounting bracket 34 clockwise rotates around the pivot part 98 that back mounting bracket 34 is attached to back seat portion support 81.For example, when be sitting in user in seat unit 10 backward by or while applying weight to backrest 14 in addition, back mounting bracket 34 can clockwise rotate.Clockwise rotating of back mounting bracket 34 drives connector 80 to push away downwards at back, makes thus after crank 82 rotate counterclockwise and move down around pivot part 83.Back toggle connector 84 regulates counterclockwise around the pivot part that back toggle connector 84 is attached to substrate 30.When substrate 30 is fixing with respect to seat portion installing plate (for example, when substrate 30 is attached to the supporting leg that rests the chair on floor directly or indirectly), back mounting bracket 34, back drive the motion of connector 80, after crank 82 and back toggle connector 84 to cause travelling forward of seat portion installing plate 28.
Continuation is with reference to Fig. 3, and when seat portion installing plate 28 is setovered forward, rear hinge connector 88 and front hinge connector 90 pass to roller connector 92 by travelling forward of seat portion installing plate 28.And then roller connector 92 utilizes the roller 94 and 96 moving around on the track of substrate 30 to move forward with respect to substrate 30.
The position of leaning forward of seat adjustment assembly 32 from Fig. 3 described to the motion of the position of layback in Fig. 4.By making back mounting bracket 34 rotate in the counterclockwise direction (as Fig. 3 looks) (this and then make above-mentioned movement reversal), be conducive to move to the position shown in Fig. 3 from the position as shown in Fig. 4.For example, can make back mounting bracket 34 move on one's own initiative, and/or removable back mounting bracket 34 power (for example, user's body weight) of motion clockwise that makes.Equally, user turns forward and also can apply the power that allows back mounting bracket 34 to rotate counterclockwise.
Fig. 5 illustrates according to the various views of the various combination of the connecting rod being labeled of the utility model embodiment.
The multiple different layout of described various parts and unshowned parts is all possible and can not exceed the scope of claims.In line with descriptive, nonrestrictive original intention has been described the various embodiment of our technology.At readers ' reading of the present disclosure after present disclosure and because read the disclosure, alternate embodiment will be apparent for them.Can realize the alternative means of implementing aforementioned content and the scope that does not depart from claims.Specific feature and sub-portfolio are available and with reference to further feature and sub-portfolio, just can not adopt, and can expect within the scope of the claims.