CN103209667B - Seat reclining device - Google Patents
Seat reclining device Download PDFInfo
- Publication number
- CN103209667B CN103209667B CN201180047643.6A CN201180047643A CN103209667B CN 103209667 B CN103209667 B CN 103209667B CN 201180047643 A CN201180047643 A CN 201180047643A CN 103209667 B CN103209667 B CN 103209667B
- Authority
- CN
- China
- Prior art keywords
- seat
- supporting member
- base component
- reclining device
- cam face
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/1056—Arrangements for adjusting the seat
- A61G5/1075—Arrangements for adjusting the seat tilting the whole seat backwards
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
- A61G5/041—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven having a specific drive-type
- A61G5/042—Front wheel drive
Abstract
The present invention relates to the seat reclining device (3) for electric wheelchair, wherein wheelchair comprises underframe (1) and seat (2). Seat reclining device comprises: base component (11), and it can be fixed to underframe and be provided with at least one first gathering sill (16); Seat supporting member (40), its be arranged as can support receive seat, removable and guided by the first gathering sill with respect to base component; And linear driving mechanism (17), it is connected to base component and seat supporting member, for along mobile route with respect to base component moved seat supporting member. Seat supporting member comprises at least one first cam face (43) towards first direction; And base component comprises at least one first rotating supporting member (31), during the movement of the first area along described mobile route, described the first cam face is arranged as with described the first rotating supporting member and supports and contact, and is formed as changing the angle between seat supporting member and base component. The invention still further relates to the electric wheelchair that is provided with a kind of like this seat reclining device.
Description
Technical field
Present invention relates in general to electric wheelchair, and relate to particularly a kind of for making the seat of wheelchair with respect to wheelchairThe equipment that underframe tilts. The invention still further relates to the wheelchair with such equipment.
Background technology
Wheelchair, especially driven by power wheelchair, have the mechanism with respect to underframe position for adjusting seat conventionally. ThisA little mechanisms can comprise for the seat elevating gear of vertical adjustment height of seat with for making the backrest of seat with respect to seatThe back rest tilting device of chair bottom angled (, for changing the angle between backrest and seat bottom).
Modern wheelchair can additionally be provided with driven by power seat reclining device, by this equipment, comprises bottom and backrestWhole seat can tilt with respect to wheelchair underframe. Such seat reclining device is set to be used to be conducive to changing wheelchairPerson's body weight, thereby avoid being caused by user's static immobilization injured, numb and other is inconvenient.
On a kind of seat reclining device of known type, whole seat tilts around transverse horizontal axis, and this axle is the end of with respect toFrame is fixed. In the time allowing the simple change of user's body weight, the seat of this known type tilts to make seat and usePerson's center of gravity moves backward during tilting. This movement backward of center of gravity is disadvantageous, and this is to move backward due to thisMove to have reduced the stability of wheelchair and even may cause wheelchair to fall and turn over.
In order to address this problem, the seat reclining apparatus of different so-called constant-gravity-centers is proposed. At theseOn the seat reclining apparatus of type, seat moves forward during tilt operation around the axle of its inclination, US6,032,976Disclosed a kind of such equipment, this equipment comprises seat frame, and described seat frame in its back-end pivotable is connected to horizontal strokeTo supporting member. In the relative horizontal linear groove that supporting member is arranged in the basic framework of wheelchair, be guided. SeatFramework is also connected to basic framework by inclined arm linkage, and inclined arm linkage is formed by two bars, these twoRelative both sides and pivotable that bar is connected to seat frame in the front of seat frame rear end pivotable are connected to basic framework.Driven by power member is connected to basic framework at front end, and is connected to lateral supports in rear end. Drive by startupMoving member, the rear portion of supporting member and seat frame moves forward in the linear groove guiding by base component.During this moves, two bars make seat frame be inclined upwardly around pivot, and wherein pivot is by the rear end that is positioned at seat frameWith relative pivotable between lateral supports connects to limit.
US2007/0102615A1 has disclosed another kind of seat reclining device, and described seat reclining device comprises having leadsTo the base component of groove, seat supporting member and connect the pivotal arm of base component and seat supporting member, whereinSeat supporting member can be moved with respect to base component and be guided by gathering sill by linear driving mechanism. In order to reduce to openMoving tilt and increase and continue the required power of speed of inclination, gathering sill comprises and being arranged on mutually different bearing of trendTwo parts.
Even according to US6,032,976 and the device of US2007/0102615 in the center of gravity phase that keeps seat and userFor wheelchair underframe approximately constant time, can allow seat to tilt, but these devices still have some defect.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of seat reclining device of the enhancing for electric wheelchair, Qi ZhongzuoChair reclining device comprises base component, seat supporting member and linear driving mechanism, and described linear driving mechanism is for edgeMobile route is with respect to base component moved seat supporting member.
Another object is to provide so a kind of seat reclining device, and its simple structure and use are reliable.
Another object is to provide so a kind of seat reclining device, and it comprises the movable member of lesser amt.
And another object is to provide so a kind of seat reclining device, it does not use any pivot link arm and realize canLean on and comfortable inclination.
And another object is to provide so a kind of seat reclining device, can remain for realizing required powerLower.
And another object is to provide so a kind of seat reclining device, the relation between power demand and Angulation changes canEasily be suitable for along the different moving areas of the mobile route of seat supporting member.
One aspect of the present invention relates to a kind of seat reclining device for wheelchair, and wherein wheelchair comprises underframe and seatChair. Seat reclining device comprises base component, and it can be fixed to underframe and be provided with at least one first gathering sill. SeatChair supporting member be arranged as can support receive seat, removable and guided by the first gathering sill with respect to base component.Linear driving mechanism is connected to base component and is connected to seat supporting member, for along mobile route, with respect to base portionMember moved seat supporting member. Seat supporting member comprises at least one first cam face towards first direction.Base component comprises at least one first rotating supporting member. During moving along the first area of described mobile route,Described the first cam face is arranged as with described the first rotating supporting member and supports and contact, and is formed as for changing seatAngle between supporting member and base component.
Like this, at least, during moving along the part of mobile route, change between seat supporting member and base componentAngle is realized by the first cam face, and wherein the first cam face is with respect to the first rotating supporting member displacement and with theOne rotating supporting member contact. In this way, can easily realize seat tilt and need not any linking arm device.Thus, the quantity of movable member can remain very low, and the height of physical dimension, especially reclining device can keepFor very little.
By this seat reclining device of the wheelchair for comprising underframe and seat, present for the mobile rotating shaft that tiltsDuring receding, chair moves forward with respect to underframe. Therefore, seat and user's center of gravity is just easily with respect to underframeAnd substantially remain on constant lengthwise position.
During seat supporting member moves, with the vertical shift phase of the first cam face with respect to the first rotating supporting memberThe variation at the angle of inclination of closing is corresponding to the gearratio of reclining device. Thereby gearratio is longitudinal along it by the first cam faceThe shape longitudinal curvature of cam face (, along) of extending determines. By selecting suitable cam face longitudinal curvature,Just may obtain optimum gearratio in the each position extending longitudinally along the first cam face. Indulging of the first cam faceTo curvature for example can select so that gearratio start to tilt from horizontal level at seat supporting member very low when mobile, at waterMean place place, the gravity on seat and user has been offset mobile completely. Cam face curvature can further select withMake gearratio along with seat supporting member adopts the angle of inclination of increase gradually and increases gradually, produced by gravity wherebyCounteracting reduces. Utilize reclining device of the present invention, while applying heavy duty equally on seat supporting member, under lower power consumptionJust can realize reliable and tilt fast. The present invention also allows to use the moving motor of small electric with low-power consumption.
Seat supporting member preferably includes at least one the second cam face, the wherein second direction towards second directionContrary with described first direction. So base component preferably includes at least one second rotating supporting member, on edgeDuring the second area of described mobile route moves, described the second rotating supporting member is arranged as and described the second rotationThe contact of support member supports, and be formed as for changing the angle between seat supporting member and base component.
During seat supporting member recedes from horizontal original position, the first meeting of gravity on seat and user is supportedDisappear mobile. In the time that seat supporting member has tilted through certain balance angle, gravity can act on continuation on the contraryIn sweptback direction. Once exceed balance angle, the second cam face and the second rotating supporting member are arranged and are usedContinuing the gravity in sweptback direction in negative function. In this way, equally when gravity is applied to inclination sideUpwards time, seat reclining device allows easily to move with cosily controlled inclination.
From the position that recedes completely of seat supporting member to during the turning forward of horizontal original position, second is protrudingWheel surface and the second rotating supporting member overcome gravity at first with lifting seat. Once exceed balance angle, gravity justCan continue hardy to turn forward. Such weight-driven continue turn forward during, the first cam face andOne rotating supporting member is offset gravity and is moved with the inclination of interrupting and control forward. Therefore, the first and second cam facesThe inclination that cooperates the both sides that drive, interrupt and be controlled at balance angle with rotating supporting member is moved. Therefore, at waterWhole inclination on flat original position and two incline directions receding completely between position has realized during movingControlled and comfortable inclination is moved completely.
Seat supporting member can comprise chair mounted plate and be approximately perpendicular at least one guiding structure that installing plate is arrangedPart, and the first cam face can be arranged in the outer rim of described ways. Thereby realized reliable, save spaceWith simple structure.
The second gathering sill can be arranged in described at least one ways, and at least one second cam face can clothPut the edge at described the second gathering sill. This further contributes to save space and reliable structure, and allows seat to supportEffective utilization of the structure height of member.
Seat reclining device can comprise elastic mechanism, and it is for making described at least one second rotating supporting member towards instituteState at least one second cam face prestretched. Elastic mechanism contributes to realize during tilting to move level and smooth with cosilyTransmit and arrive angle of equilibrium degree. In addition, elastic mechanism allows cam face can carry out to lower accuracy machining and systemMake, and rotating supporting member can be positioned to lower accuracy between erecting stage.
Linear driving mechanism can comprise: the electro-motor that is fixed to base component; Be connected to the rotary screw of motor; WithAnd be threaded on screw rod and be fixed to the drive member on seat supporting member. Thereby, provide a kind of simple,Save space and very reliable and energy-conservation driving mechanism.
Base component can comprise two the first gathering sills, two the first rotating supporting member and two the second rotary support structuresPart, described the first gathering sill, described the first rotating supporting member and described the second rotating supporting member are arranged in base portionOn the relative cross side of member. So seat supporting member can comprise chair mounted plate and two ways, thisTwo ways are basically perpendicular to installing plate and arrange at the respective lateral side place of seat installing plate, each ways bagDraw together corresponding the first cam face and corresponding the second cam face. This permission can at each cross side place of seat supporting memberGuiding and control are tilted mobile. Thereby stability and the balance of equipment are strengthened. This embodiment further causesThe load being applied by seat and user is evenly distributed to the both sides of equipment, thereby the size of load bearing component can correspondingly reduce.
Linear driving mechanism can and be basically parallel to base portion structure between base component and the cross side of seat supporting memberThe cross side of part and seat supporting member is arranged. Thereby can be by thering is single, the less driving mechanism compared with low energy consumptionRealize mobile reliable and balanced driving.
According to second aspect, the present invention relates to a kind of wheel that comprises underframe, seat and seat reclining device as aboveChair.
Brief description of the drawings
Illustrative embodiments of the present invention is described below with reference to accompanying drawings, wherein:
Fig. 1 is the signal front perspective view according to the wheelchair that is provided with seat reclining device of the present invention.
Fig. 2 is the perspective view of the seat reclining device that is schematically shown in Fig. 1.
Fig. 3 shows the decomposition diagram of some parts of the seat reclining device shown in Fig. 2.
Fig. 3 a to Fig. 3 c illustrates the side view of seat reclining device in diverse location, and these positions are corresponding to seatTilt and tilt completely in level, part.
Detailed description of the invention
Fig. 1 shows a kind of electric wheelchair, and it comprises underframe 1, seat 2 and according to one embodiment of the present inventionSeat reclining device 3. Underframe supports two front-wheels 4 and pivotable trailing wheel 5, and wherein front-wheel is by electrical motor driven.Underframe also comprises automatic seat lowering or hoisting gear (not shown), and it is for the vertical motion of seat 2. In the drawings, seatThe extreme lower position of lowering or hoisting gear in it.
Seat 2 comprises seat bottom 7, backrest 8 and handrail 9, and handrail is connected to backrest 8. Shown in enforcement sideIn formula, backrest 8 is fixedly attached to seat bottom 7. But backrest 8 is also by back rest tilting device and with respect to seatChair bottom can pivotable, and this is known to those skilled in the art. Seat bottom 7 is also fixed to seat frame6, described seat frame is supporting leg rest 10 also.
Seat frame 6 is fixed to seat reclining device 3, and seat reclining device is fixed to seat elevating gear thenVertical movable part.
With reference to Fig. 2 and Fig. 3, seat reclining device comprises base component 11, and it illustrates separately in Fig. 3. Base component11 comprise central mounting plate 12 at front end, and described central mounting plate has multiple installing holes 13, for being fixed by screw etc.To the vertical movable part of seat elevating gear or be fixed to the stationary part of underframe. Therefore, if necessary, can omitSeat elevating gear. Base component 11 also comprises left-hand side member 14a and right-hand side member 14b. Side member 14a, 14bParallel to each other and perpendicular to installing plate 12 ground from installing plate 12 to downward-extension. In the embodiment shown, side member 14a,14b is the independent parts that are fixedly secured to installing plate 12. But installing plate 12 and side member can be formed as overall portionPart. The first gathering sill 16 is formed in each side member 14a, 14b. Each gathering sill 16 is generally linear.
Linear driving mechanism 17 is fixed to base component 11. Described linear driving mechanism comprises electro-motor 18, gearDevice 19, rotary screw 20 and drive member 21, described drive member is threaded on bar 20 and with respect to bar20 rotations. Screw rod 20 is connected to motor 18 by geared system 19. Linear driving mechanism 17 passes through mounting bracket22 and trip bolt 23,24 be fixed to base component 11. Screw rod 20 extends, is substantially positioned at base from geared system 19The centre of the side member 14 of portion's member 11 is also parallel to the side member 14 of base component 11.
Base component 11 also comprises two rotary support assemblies 30. Figure 3 illustrates, only a this rotation is propped upSupport component 30 is connected to right-hand side member 14b. But as shown in Figure 2, exemplary seat reclining device 3 also wrapsDraw together another rotary support assembly 30 that is connected to left-hand side member 14a. Only to be connected to by what describe in detail belowThe rotary support assembly 30 of right-hand side member 14b. But recognize described exemplary seat reclining deviceAlso comprise the corresponding rotary support assembly that is connected to left-hand side member 14a.
Rotary support assembly 30 comprises the first rotating supporting member 31, and it is the form of bearing of journals roller. First revolvesTurn supporting member and be fixed to right-hand side member 14b by screwed joint 32a-c. Assembly 30 also comprises the second rotary supportMember 33, it is the form of bearing of journals roller. The second rotating supporting member 33 is fixed by screwed joint 36a-cTo two installing plates 34,35 and between installing plate 34,35. Installing plate 34,35 is by overlapping cottar34a, 35a are engaged with each other. Two installing plates 34,35 and and then the second rotating supporting member 33 by bolt 37a,Bearing insert 37b and nut 37c are fixed to right-hand side member 14b pivotly. Rotary support assembly also comprises elasticityMechanism 38, it is for the prestretched of the second rotating supporting member 33. Elastic mechanism comprises bolt 38a, and it is contained inOne end has in the lining 38b of the collar radially. Multiple elastic washer 38c slide and in the footpath of lining on lining 38bTo compressed between the lower surface of the folding tenon 38d of the collar and side member 14b. Bolt 38a slides through in tenon 38dHole screw thread be received in the screwed hole 38e in the cottar 34a that is arranged in installing plate 34. In this way,Two installing plates 34,35 are flexibly actuated with around bolt 37a pivotable in the counterclockwise direction, as shown in Figure 3.Therefore, the second rotating supporting member 33 is by flexibly to lower compression, as shown in Figure 3.
Seat reclining device 3 also comprises seat supporting member 40. Seat supporting member 40 comprise chair mounted plate 41,Left hand ways 42a and right hand ways 42b. Ways 42a, 42b are arranged in the phase of chair mounted plateAnswer cross side place outstanding therefrom downwards, these ways are substantially parallel to each other. In the embodiment shown,Ways 42a, 42b are the separate parts being fixedly secured on chair mounted plate 41. But, chair mounted plate41 and ways 42a, 42b also can be formed as global facility.
Axostylus axostyle 50 pivotables are fixed to ways 42a, 42b and between the rear end of ways 42a, 42b.Axostylus axostyle 50 has centre bore 51, and wherein drive member 21 is fixed in described centre bore. Thereby stop driving structurePart 21 is with respect to the rotation of axostylus axostyle 50. Each guide roller 52 rotations are arranged in each end of axostylus axostyle 50. GuidingRoller 52 is received in each first gathering sill 16 that is arranged in side member 14a, 14b and by described the first gathering sillGuiding. Axostylus axostyle 50 and guide roller 52 are fixed to seat supporting member 40 by nipple 53a-c pivotable. Screw threadJoint 53a-c extends through the hole 54 in each ways 42a, 42b and passes each guide roller 52, andScrew thread is fixed to each end of axostylus axostyle 50.
Right hand ways 42b is described below in more detail. But, can understand, identical description also canFor left hand ways 42a. Ways 42b has the first cam face 43, and it is arranged in ways 42bOutward flange and towards lower limb. Cam face 43 extending longitudinallyly has a roughly convex surface curve shape along it. The second guidingGroove 44 is arranged in ways 42b. The lower edge of the second gathering sill 44 forms the second cam face 45, and describedTwo cam faces and the first cam face 43 faces are in the opposite direction. The second cam face is roughly arranged as with first protrudingWheel surface 43 is substantially parallel, thus make distance between the first and second cam faces 43 and 45 along cam face 43,45 substantially constant extending longitudinally.
Base component 11 and seat supporting member 40 arrange to make the first cam face 43 on each cross side to supportBy each first rotating supporting member 31. Each the second rotating supporting member 33 is arranged in each the second gathering sill 44In, and flexibly promoted facing to each second cam face 45.
With reference to Fig. 4 a to Fig. 4 c, now will explain the operation of seat reclining device. In Fig. 4 a, show in initialThe seat reclining device 3 of position. In original position, seat supporting member 40 is arranged in the position of basic horizontal. LeadBe positioned at the rear end of each the first gathering sill 16 to roller 52. This position of seat reclining device is corresponding to seat 2In aclinal normal position.
In the time that seat recedes, electro-motor 18 starts to rotate in the first direction of rotation. Thereby, screw rod 20In corresponding direction of rotation, rotate. Thereby the drive member 21 of screw threaded arrangement on bar 20 is along bar 20 to reachPosition. Drive member 21 is ordered about seat supporting member 40 by axostylus axostyle 50 and is shifted forward. At seat supporting member 40During displacement, the rear portion of described seat supporting member by guide roller 52 joint in the first gathering sill 16 guide.During the shifting forward of the first moving area along seat supporting member 40, the gravity on seat and seat userCan make the first cam face 43 contact with corresponding the first rotating supporting member 31. By the first rotating supporting member 31And first cooperation between cam face 43, the upwards lifting of the front portion of seat supporting member, seat supports structure thusPart recedes around the tilt pivot being limited by guide roller 52 center.
The curvature of the first cam face 43 along the longitudinal component corresponding to initial tilt with respect to the first rotating supporting memberAnd with respect to the bearing of trend setting of the first gathering sill 16, shifting forward of guide roller 52 certain lengths causedThe anterior less lifting of seat supporting member. Therefore, during initial tilt, the gearratio phase of seat reclining deviceTo low, thereby make the required power of initial tilt can keep lower, now gravity has been offset mobile completely.
Once initial tilt completes, along with guide roller 52 and tilt pivot approach the weight through seat and userThe vertical curve of the heart, the gravity that antagonism tilts to move can reduce gradually. The curvature of the first cam face is along corresponding to hypsokinesisOblique longitudinal component is arranged as has gradually the gearratio increasing, thereby along with the reducing of counteract gravity forces, tilts mobileSpeed increases, and is kept for realizing required power substantially constant simultaneously.
In Fig. 4 b, show in angle of inclination wherein and reached the seat reclining device of the position of balance angle. ?This balance angle, seat and user's center of gravity is positioned at the tilt pivot being limited by guide roller 52 centers substantially verticallyTop. Thereby continue to recede when being implemented angle of inclination and having passed through balance angle when as above, seat and makingGravity on user can continue to recede around tilt pivot hardy. Thereby that is supported by rotary support assembly 30 carriesLotus is changed into by the second cam face 45 from acting on the first rotating supporting member 31 by the first cam face 43Act in the second rotating supporting member 33. Afterwards, electro-motor is for interrupting on one's own initiative and controlling and continue to tilt to figureComplete obliquity shown in 4c, instead of it is mobile to drive continuation to tilt. When through balance angle, elastic mechanism38 have guaranteed there is no activity space between rotating supporting member and cam face, thereby do not appoint through balance angleWhat disturbance or uncomfortable jerk or interruption. Consistent with the first cam face 43, the longitudinal curvature of the second cam face 45 becomesShape for make from balance angle (Fig. 4 b) to complete obliquity (Fig. 4 inclination c) move during gearratio increase.
In the exemplary embodiment, recede position completely corresponding to the inclination of approximately 50 ° from horizontal original positionAngle. The longitudinal direction of the first gathering sill 16 is arranged as and turns forward, and between described longitudinal direction and horizontal plane, hasThe angle of inclination of approximately 5.5 °. This allows having at screw rod 20 when the effective length that still keeps cam face is shorterImitate in the shorter situation of length, can reach larger maximum inclination angle.
So that its rightabout rotates, can realize in a similar manner as described above from Fig. 4 c by starting electro-motorShown in complete obliquity be tilted forward to the original position shown in Fig. 4 a.
Utilize above-mentioned seat reclining device, may reach reliable, the level and smooth and comfortable inclination of fair speed, andBe supplied to effective utilization of the electrical power of electro-motor. Seat reclining device also comprises the movable member of lesser amt, itsStrengthen stability and service life, and reduced maintenance needs. This equipment is also considered and is saved spatial configuration and spyStructure height is remained lower not for this reason.
Describe and show illustrative embodiments of the present invention above. But the present invention should be regarded as being not limited toThese embodiments, and can change within the scope of the appended claims. Do not exceed in required range of tilt anglesIn the situation of balance angle, can be without the second cam face and the second rotating supporting member. In only limited full payloadBe applied in the situation on seat supporting member, seat reclining device can only comprise first cam face and oneOne rotating supporting member. In addition, the shape of cam face and configuration can change, for example, and for tilting the mobile phaseBetween realize the gearratio of any desired variation of seat reclining device.
Claims (9)
1. the seat reclining device (3) for electric wheelchair, wherein said wheelchair comprises underframe (1) and seat(2), described seat reclining device comprises:
Base component (11), described base component can be fixed to described underframe and be provided with at least one first guidingGroove (16) and at least one the first rotating supporting member (31);
Seat supporting member (40), described seat supporting member comprises at least one first cam towards first directionSurface (43), described seat supporting member be arranged as mode supporting receive described seat, can be with respect to instituteState that base component moves and guided by described the first gathering sill; And
Linear driving mechanism (17), described linear driving mechanism is connected to described base component and described seat supportsMember, for moving described seat supporting member along mobile route with respect to described base component, described mobile route byDescribed at least one first gathering sill and described at least one first cam face limit;
Wherein, during moving along the first area of described mobile route, described the first cam face is arranged as with describedFirst rotating supporting member support contact and be formed as for change described seat supporting member and described base component itBetween angle.
2. seat reclining device according to claim 1, wherein, described seat supporting member (40) comprisesTowards at least one second cam face (45) of second direction, wherein said second direction and described first direction phaseInstead; And described base component (11) comprises at least one second rotating supporting member (33), along described movementDuring the second area in path moves, described at least one second cam face is arranged as and described the second rotary support structurePart supports and contacts and be formed as for changing the angle between described seat supporting member and described base component.
3. seat reclining device according to claim 1 and 2, wherein, described seat supporting member (40)Comprise the chair mounted plate (41) for seat is installed and be arranged to be approximately perpendicular at least one of described chair mounted plateIndividual ways (42a, 42b), and wherein, described the first cam face (43) is arranged in described waysOuter edge.
4. seat reclining device according to claim 2, wherein, described seat supporting member (40) comprisesLead at least one of the chair mounted plate (41) of seat being installed and being arranged to be approximately perpendicular to described chair mounted plateTo member (42a, 42b), and wherein, described the first cam face (43) be arranged in described ways outsideEdge is furnished with the second gathering sill (44) in described at least one ways (42a, 42b), and instituteState the edge that at least one second cam face (45) is arranged in described the second gathering sill (44).
5. seat reclining device according to claim 2, described seat reclining device comprises elastic mechanism(38a-38c), described elastic mechanism is used for described at least one second rotating supporting member (33) towards extremely describedFew second cam face (45) prestretched.
6. seat reclining device according to claim 1, wherein, described linear driving mechanism (17) comprising:Be fixed to the electro-motor (18) of described base component (11); Be connected to the rotary screw (20) of described motor; WithAnd drive member (21), described drive member is threaded io on described rotary screw and is fixed to described seat and supportsMember (40).
7. seat reclining device according to claim 1, wherein, described base component (11) comprises twoThe first gathering sill (16), two the first rotating supporting member (31) and two the second rotating supporting member (33), instituteState the first gathering sill, described the first rotating supporting member and described the second rotating supporting member and be arranged in described base portion structureIn the relative both lateral sides of part (11); And wherein, described seat supporting member (40) comprises chair mounted plate(41) and two ways (42a, 42b), these two ways are approximately perpendicular to described chair mounted plate and establishPut at the respective lateral side place of described chair mounted plate (41), each ways (42a, 42b) comprises accordinglyThe first cam face (43) and corresponding the second cam face (45).
8. seat reclining device according to claim 7, wherein, described linear driving mechanism (17) is placed in the middleBe arranged between described base component (11) and the both lateral sides of described seat supporting member (40), and substantially flatRow is in the both lateral sides of described base component (11) and described seat supporting member (40).
9. an electric wheelchair, described electric wheelchair comprises underframe (1), seat (2) and according to claim 1To the seat reclining device (3) described in any one in 8.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1051018 | 2010-09-30 | ||
| SE1051018-8 | 2010-09-30 | ||
| PCT/EP2011/066833 WO2012041890A1 (en) | 2010-09-30 | 2011-09-28 | Seat tilt apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103209667A CN103209667A (en) | 2013-07-17 |
| CN103209667B true CN103209667B (en) | 2016-05-04 |
Family
ID=44764121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180047643.6A Expired - Fee Related CN103209667B (en) | 2010-09-30 | 2011-09-28 | Seat reclining device |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2621444B1 (en) |
| CN (1) | CN103209667B (en) |
| WO (1) | WO2012041890A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004039299A2 (en) * | 2002-10-28 | 2004-05-13 | Papac James B | Tiltable seating apparatus for wheelchair |
| EP1621170A2 (en) * | 2004-07-30 | 2006-02-01 | Hill-Rom Services, Inc. | Patient support having an adjustable popliteal length apparatus, system and method |
| US20060026765A1 (en) * | 2004-07-30 | 2006-02-09 | Hornbach David W | Advanced articulation system and mattress support for a bed |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0900555A3 (en) | 1997-09-08 | 1999-10-06 | Sunrise Medical HHG Inc. | Wheelchair with tilting seat |
| US6106065A (en) * | 1997-10-24 | 2000-08-22 | Reliance Medical Products, Inc. | Examination chair with lifting and tilting mechanism |
| US7007965B2 (en) * | 2003-03-31 | 2006-03-07 | Sunrise Medical Hhg Inc. | Center-of-gravity tilt-in-space wheelchair |
| US20070102615A1 (en) | 2005-10-21 | 2007-05-10 | Permobil Ab | Seat tilt apparatus for a wheelchair |
| WO2008036018A1 (en) * | 2006-09-19 | 2008-03-27 | Permobil Ab | Seat for a wheelchair and a method for varying the angle between a seat part and a backrest. |
-
2011
- 2011-09-28 CN CN201180047643.6A patent/CN103209667B/en not_active Expired - Fee Related
- 2011-09-28 WO PCT/EP2011/066833 patent/WO2012041890A1/en active Application Filing
- 2011-09-28 EP EP20110766946 patent/EP2621444B1/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004039299A2 (en) * | 2002-10-28 | 2004-05-13 | Papac James B | Tiltable seating apparatus for wheelchair |
| EP1621170A2 (en) * | 2004-07-30 | 2006-02-01 | Hill-Rom Services, Inc. | Patient support having an adjustable popliteal length apparatus, system and method |
| US20060026765A1 (en) * | 2004-07-30 | 2006-02-09 | Hornbach David W | Advanced articulation system and mattress support for a bed |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2621444A1 (en) | 2013-08-07 |
| WO2012041890A1 (en) | 2012-04-05 |
| CN103209667A (en) | 2013-07-17 |
| EP2621444B1 (en) | 2015-04-22 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 |