CN103209667A - Seat tilt apparatus - Google Patents
Seat tilt apparatus Download PDFInfo
- Publication number
- CN103209667A CN103209667A CN2011800476436A CN201180047643A CN103209667A CN 103209667 A CN103209667 A CN 103209667A CN 2011800476436 A CN2011800476436 A CN 2011800476436A CN 201180047643 A CN201180047643 A CN 201180047643A CN 103209667 A CN103209667 A CN 103209667A
- 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.)
- Granted
Links
Images
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
-
- 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 invention concerns a seat tilt apparatus (3) for an electric wheelchair, which wheelchair comprises a chassis (1) and a seat (2). The seat tilt apparatus comprises; a base member (11), which is fixable to the chassis and provided with at least one first guide slot (16); a seat supporting member (40) which is arranged to supportably receive the seat, movable in relation to the base member and guided by the first guide slot; and a linear drive means (17) which is connected to the base member and to the seat supporting member, for moving the seat supporting member along a motion path, in relation to the base member. The seat supporting member comprises at least one first cam surface (43) facing in a first direction; and the base member comprises at least one first rotational support member (31), said first cam surface being arranged to be in supporting contact with said first rotational support member and formed for altering the angle between the seat supporting member and the base member during movement along a first interval of said motion path. The invention also concerns an electric wheelchair provided with such a seat tilt apparatus.
Description
Technical field
Present invention relates in general to electric wheelchair, and relate to a kind of be used to the equipment of the seat that makes wheelchair with respect to the inclination of wheelchair underframe particularly.The invention still further relates to the wheelchair with such equipment.
Background technology
Wheelchair, especially driven by power wheelchair have usually for regulating the mechanism of seat with respect to the underframe position.These mechanisms can comprise for the seat elevating gear of vertically adjusting height of seat and be used for making the backrest of seat with respect to the back rest tilting device of seat bottom inclination (that is, for the angle that changes between backrest and the seat bottom).
Modern wheelchair can additionally be provided with driven by power seat reclining device, by this equipment, comprises that the whole seat of bottom and backrest can tilt with respect to the wheelchair underframe.Such seat reclining device is set being conducive to changing wheelchair user's body weight, thus avoid being caused by the user 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 is fixed with respect to underframe.When allowing the simple change of user body weight, the seat of this known type tilts to make the center of gravity of seat and user mobile backward during tilting.This movement backward of center of gravity is disadvantageous, and this is because this mobile stability that has reduced wheelchair backward and even may cause wheelchair to fall turning over.
In order to address this problem, the different constant seat reclining apparatus of so-called center of gravity has been proposed.On the seat reclining apparatus of these types, seat moves forward US6 around the axle of its inclination during tilt operation, 032,976 have disclosed a kind of such equipment, and this equipment comprises seat frame, and described seat frame pivots in its back-end and is connected to lateral supports.Be guided in the relative horizontal linear groove that supporting member is arranged in the basic framework of wheelchair.Seat frame also is connected to basic framework by the inclined arm linkage, and the inclined arm linkage is formed by two bars, and these two bars are connected to basic framework at relative both sides and the pivot that the place ahead of seat frame rear end pivot is connected to seat frame.The driven by power member is connected to basic framework at front end, and is connected to lateral supports in the rear end.By starting drive member, the rear portion of supporting member and seat frame moves forward in by the guiding of the linear groove in the base component.During this moved, two bars made seat frame be inclined upwardly around pivot, and wherein pivot is by connecting to limit in the rear end of seat frame and the relative pivot between the lateral supports.
US2007/0102615 A1 has disclosed another kind of seat reclining device, described seat reclining device comprises base component with gathering sill, seat supporting member and the pivotal arm that connects base component and seat supporting member, and wherein the seat supporting member can move with respect to base component and guided by gathering sill by linear driving mechanism.Continue the required power of speed of inclination in order to reduce to start to tilt and increase, gathering sill comprises two parts that are arranged on the mutually different bearing of trend.
Even according to US6,032,976 and the device of US2007/0102615 when the center of gravity that keeps seat and user is with respect to wheelchair underframe approximately constant, can allow seat to tilt, but these devices still have some defective.
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, wherein the seat reclining device comprises base component, seat supporting member and linear driving mechanism, and described linear driving mechanism is used for moving the seat supporting member along mobile route with respect to base component.
Another purpose is to provide a kind of like this seat reclining device, and its simple structure and use are reliable.
Another purpose is to provide a kind of like this seat reclining device, and it comprises the movable member of lesser amt.
And another purpose is to provide a kind of like this seat reclining device, and it does not use any pivot links arm and realizes reliable and comfortable inclination.
And another purpose is to provide a kind of like this seat reclining device, is used for realizing that required power can remain lower.
And another purpose is to provide a kind of like this seat reclining device, and the relation between power demand and angle change can easily 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 seat.The seat reclining device comprises base component, and it can be fixed to underframe and be provided with at least one first gathering sill.The seat supporting member is arranged as can admit seat with supporting, removable and guided by first gathering sill with respect to base component.Linear driving mechanism is connected to base component and is connected to the seat supporting member, is used for along mobile route, moves the seat supporting member with respect to base component.The 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 first cam face is arranged as with described first rotating supporting member support and contacts, and forms for the angle that changes between seat supporting member and the base component.
Like this, at least during the part along mobile route moves, the angle that changes between seat supporting member and the base component is realized that by first cam face wherein first cam face contacts with respect to the displacement of first rotating supporting member and with first rotating supporting member.In this way, can realize easily that seat tilts 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 remain very little.
By this seat reclining device for the wheelchair that comprises underframe and seat, be used for tilting mobile rotating shaft and during seat recedes, move forward with respect to underframe.Therefore, the center of gravity of seat and user just remains on constant lengthwise position with respect to underframe easily substantially.
During the seat supporting member moved, the variation at the angle of inclination relevant with respect to the vertical shift of first rotating supporting member with first cam face was corresponding to the gear ratio of reclining device.Thereby gear ratio is determined along the shape of its longitudinal extension longitudinal curvature of cam face (that is, along) by first cam face.By selecting suitable cam face longitudinal curvature, just may obtain optimum gear ratio in each position along the longitudinal extension of first cam face.The longitudinal curvature of first cam face for example can be selected so that gear ratio begins to tilt very low when mobile from horizontal level at the seat supporting member, and in horizontal position, the gravity on seat and the user has been offset mobile fully.Cam face curvature can further be selected so that gear ratio adopts the angle of inclination of increase gradually along with the seat supporting member and increases gradually, and the counteracting that is produced by gravity reduces whereby.Utilize reclining device of the present invention, when the seat supporting member applies heavy duty, under lower power consumption, just can realize reliable and inclination fast equally.The present invention also allows to use the less electro-motor with low-power consumption.
The seat supporting member preferably includes at least one second cam face towards second direction, and wherein second direction is opposite with described first direction.So, base component preferably includes at least one second rotating supporting member, during the second area along described mobile route moves, described second rotating supporting member is arranged as with described second rotating supporting member support and contacts, and forms for the angle that changes between seat supporting member and the base component.
During the seat supporting member receded from horizontal original position, the first meeting of the gravity on seat and the user was offset mobile.When the seat supporting member had tilted through certain balance angle, gravity can act on the contrary and continue on the sweptback direction.In case surpassed the balance angle, second cam face and second rotating supporting member are arranged and are used for negative function at the gravity that continues on the sweptback direction.In this way, when gravity applied in an inclined direction, the seat reclining device allowed to move with cosily controlled inclination easily equally.
From the seat supporting member recede the position fully during the turning forward of horizontal original position, second cam face and second rotating supporting member overcome gravity at first with the lifting seat.In case surpassed the balance angle, gravity will continue to turn forward hardy.Such weight-driven continue turn forward during, first cam face and first rotating supporting member are offset gravity to interrupt and control inclination is forward moved.Therefore, first and second cam faces and rotating supporting member cooperate to drive, interrupt and control in the inclination of the both sides of balance angle and move.Therefore, during the whole inclination on horizontal original position and two incline directions between the position of receding is fully moved, realized that complete controlled and comfortable inclination moves.
The seat supporting member can comprise the chair mounted plate and be approximately perpendicular at least one ways that installing plate is arranged, and first cam face can be arranged in the outer rim of described ways.Thereby realized reliable, save space and simple structure.
Second gathering sill can be arranged in described at least one ways, and at least one second cam face can be arranged in the edge of described second gathering sill.This further helps to save space and reliable structure, and allows effective utilization of the structure height of seat supporting member.
The seat reclining device can comprise elastic mechanism, and it is used for making described at least one second rotating supporting member towards described at least one second cam face prestretched.Elastic mechanism helps to realize during tilting to move level and smooth and cosily transmits arrival angle of equilibrium degree.In addition, elastic mechanism allows cam face to carry out machining and manufacturing to lower accuracy, 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; And be threaded on the screw rod and be fixed to drive member on the seat supporting member.Thereby, provide a kind of simple, save space and very reliable and energy-conservation driving mechanism.
Base component can comprise two first gathering sills, two first rotating supporting member and two second rotating supporting member, and described first gathering sill, described first rotating supporting member and described second rotating supporting member are arranged on the relative cross side of base component.So, the seat supporting member can comprise chair mounted plate and two ways, these two ways are basically perpendicular to installing plate and arrange that each ways comprises corresponding first cam face and corresponding second cam face at the respective lateral side place of seat installing plate.This allows can guide and control to tilt to move at each cross side place of seat supporting member.Thereby stability and the balance of equipment have been strengthened.This embodiment further causes the both sides of the equipment that is evenly distributed to by the load that seat and user apply, thereby the size of load bearing component can correspondingly reduce.
Linear driving mechanism can be between the cross side of base component and seat supporting member and the cross side that is basically parallel to base component and seat supporting member arrange.Thereby can realize mobile reliable and balanced driving by having than single, the less driving mechanism of low energy consumption.
According to second aspect, the present invention relates to a kind of wheelchair that comprises underframe, seat and aforesaid seat reclining device.
Description of drawings
Illustrative embodiments of the present invention is described below with reference to accompanying drawings, wherein:
Fig. 1 is the signal front perspective view that is provided with the wheelchair of seat reclining device according to of the present invention.
Fig. 2 is the perspective view of the seat reclining device that is schematically shown among 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 that the seat reclining device is in diverse location, and these positions are in level, part inclination corresponding to seat and tilt fully.
The specific embodiment
Fig. 1 shows a kind of electric wheelchair, and it comprises underframe 1, seat 2 and according to the seat reclining device 3 of one embodiment of the present invention.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 used for the vertical motion of seat 2.In the drawings, seat elevating gear is in its extreme lower position.
Seat 2 comprises seat bottom 7, backrest 8 and handrail 9, and handrail is connected to backrest 8.In the embodiment shown, backrest 8 is fixedly attached to seat bottom 7.Yet backrest 8 also can pivot with respect to seat bottom by back rest tilting device, and this is known to those skilled in the art.Seat bottom 7 also is fixed to seat frame 6, and described seat frame is supporting leg rest 10 also.
Seat frame 6 is fixed to seat reclining device 3, and the seat reclining device is fixed to the vertical movable part of seat elevating gear then.
With reference to Fig. 2 and Fig. 3, the seat reclining device comprises base component 11, and it illustrates separately in Fig. 3.Base component 11 comprises central installing plate 12 at front end, and described central installing plate has a plurality of installing holes 13, is used for being fixed to the vertical movable part of seat elevating gear or being fixed to the stationary part of underframe by screw etc.Therefore, if necessary, can omit seat elevating gear.Base component 11 also comprises left-hand side member 14a and right-hand side member 14b.Side member 14a, 14b are parallel to each other and extend downwards from installing plate 12 perpendicular to installing plate 12 ground.In the embodiment shown, side member 14a, 14b are the independent parts that are fixedly secured to installing plate 12.Yet installing plate 12 and side member can form global facility.First gathering sill 16 is formed among each side member 14a, 14b.Each gathering sill 16 is generally linear.
Seat reclining device 3 also comprises seat supporting member 40.Seat supporting member 40 comprises chair mounted plate 41, left hand ways 42a and right hand ways 42b.Ways 42a, 42b are arranged in the respective lateral side place of chair mounted plate and outstanding therefrom downwards, and these ways are parallel to each other basically.In the embodiment shown, ways 42a, 42b are the separate parts that is fixedly secured on the chair mounted plate 41.Yet chair mounted plate 41 and ways 42a, 42b also can form global facility.
Axostylus axostyle 50 pivots and is 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 the described centre bore.Thereby stoped the rotation of drive member 21 with respect to axostylus axostyle 50.Each guide roller 52 rotations are arranged in each end of axostylus axostyle 50.Guide roller 52 is received in each first gathering sill 16 that is arranged in side member 14a, 14b and by described first gathering sill and guides.Axostylus axostyle 50 and guide roller 52 pivot by nipple 53a-c and are fixed to seat supporting member 40.Nipple 53a-c extends through the hole 54 among each ways 42a, the 42b and passes each guide roller 52, and screw thread is fixed to each end of axostylus axostyle 50.
With reference to Fig. 4 a to Fig. 4 c, now will explain the operation of seat reclining device.In Fig. 4 a, show the seat reclining device 3 that is in original position.In original position, seat supporting member 40 is arranged in the position of basic horizontal.Guide roller 52 is positioned at the rear end of each first gathering sill 16.This position of seat reclining device is in aclinal normal position corresponding to seat 2.
When seat receded, electro-motor 18 started to rotate in first direction of rotation.Thereby screw rod 20 rotates in corresponding direction of rotation.Thereby the drive member 21 of screw threaded arrangement on bar 20 shifts forward along bar 20.Drive member 21 is ordered about seat supporting member 40 by axostylus axostyle 50 and is shifted forward.During 40 displacements of seat supporting member, the rear portion of described seat supporting member is guided by the joint of guide roller 52 in first gathering sill 16.During the shifting forward of first moving area of seat supporting member 40, seat can make first cam face 43 contact with corresponding first rotating supporting member 31 with gravity on the seat user.By the cooperation between first rotating supporting member 31 and first cam face 43, the lifting that can make progress of the front portion of seat supporting member, the tilt pivot that limits of the seat supporting member center by guide roller 52 of winding recedes thus.
The curvature of first cam face 43 along corresponding to the longitudinal component of initial tilt with respect to first rotating supporting member and with respect to the bearing of trend setting of first gathering sill 16, make the less lifting of the front portion that shifting forward of guide roller 52 certain-lengths causes the seat supporting member.Therefore, during initial tilt, the gear ratio of seat reclining device is low relatively, thereby makes the required power of initial tilt can keep lower, and this moment, gravity was offset mobile fully.
In case initial tilt is finished, along with guide roller 52 and the approaching vertical curve that passes the center of gravity of seat and user of tilt pivot, the gravity that antagonism tilts to move can reduce gradually.The curvature of first cam face has the gear ratio that increases gradually along being arranged as corresponding to the longitudinal component with rear-inclined, thereby along with the reducing of counteract gravity forces, the mobile speed that tilts increases, and is kept for realizing required power substantially constant simultaneously.
In Fig. 4 b, show and be in the seat reclining device that angle of inclination has wherein reached the position of balance angle.In this balance angle, the center of gravity of seat and user is positioned at the tilt pivot top that is limited by guide roller 52 centers substantially vertically.Thereby continue to recede when being implemented the angle of inclination and having passed through the balance angle when aforesaid, the gravity on seat and the user can continue to recede around tilt pivot hardy.Thereby the load that is supported by rotation supporting component 30 changes into by second cam face 45 and acts on second rotating supporting member 33 from acts on first rotating supporting member 31 by first cam face 43.Afterwards, electro-motor is used for interrupting on one's own initiative and controlling and continue to tilt to the complete obliquity shown in Fig. 4 c, rather than it is mobile to drive the continuation inclination.Through the balance angle time, elastic mechanism 38 has guaranteed do not have activity space between rotating supporting member and cam face, thereby through the balance angle and without any disturbance or uncomfortable jerk or interruption.Consistent with first cam face 43, the longitudinal curvature of second cam face 45 is shaped so that gear ratio increases during moving from balance angle (Fig. 4 b) to the inclination of complete obliquity (Fig. 4 c).
In the exemplary embodiment, recede the position fully corresponding to from the about 50 ° angle of inclination of horizontal original position.The longitudinal direction of first gathering sill 16 is arranged as and turns forward, and has about 5.5 ° angle of inclination between described longitudinal direction and the horizontal plane.This permission under the short situation of the effective length of screw rod 20, can reach bigger maximum inclination angle when the effective length that still keeps cam face is short.
, so that rotating, its rightabout can realize in a similar manner as described above being tilted forward to the original position shown in Fig. 4 a from the complete obliquity shown in Fig. 4 c by starting electro-motor.
Utilize above-mentioned seat reclining device, may reach reliable, the level and smooth and comfortable inclination of fair speed, and the effective utilization that is supplied to the electrical power of electro-motor.The seat reclining device also comprises the movable member of lesser amt, and it has strengthened stability and service life, and has reduced maintenance needs.This equipment is also considered and is saved spatial configuration and structure height is remained lower especially for this reason.
Above describing and showing illustrative embodiments of the present invention.Yet the present invention should be regarded as being not limited to these embodiments, and can change within the scope of the appended claims.Under the situation of required not over balance of range of tilt angles angle, can need not second cam face and second rotating supporting member.Under only limited full payload was applied to situation on the seat supporting member, the seat reclining device can only comprise first cam face and first rotating supporting member.In addition, the shape of cam face and configuration can change, and for example, are used for realizing the gear ratio of any desired variation of seat reclining device during tilting to move.
Claims (9)
1. seat reclining device (3) that is used 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 gathering sill (16);
Seat supporting member (40), described seat supporting member are arranged as in the mode that can support and admit described seat, can move and by the guiding of described first gathering sill with respect to described base component;
Linear driving mechanism (17), described linear driving mechanism are connected to described base component and described seat supporting member, are used for moving described seat supporting member along mobile route with respect to described base component; It is characterized in that
Described seat supporting member comprises at least one first cam face (43) towards first direction; And described base component comprises at least one first rotating supporting member (31), during moving along the first area of described mobile route, described first cam face is arranged as with described first rotating supporting member and supports the angle that contacts and form for changing between described seat supporting member and the described base component.
2. seat reclining device according to claim 1, wherein, described seat supporting member (40) comprises that wherein said second direction is opposite with described first direction towards at least one second cam face (45) of second direction; And described base component (11) comprises at least one second rotating supporting member (33), during the second area along described mobile route moved, described second rotating supporting member was arranged as with described second rotating supporting member and supports the angle that contacts and form for changing between described seat supporting member and the described base component.
3. seat reclining device according to claim 1 and 2, wherein, described seat supporting member (11) comprises the installing plate (12) for seat and is arranged to be approximately perpendicular at least one ways (42a, 42b) of described installing plate, and wherein, described first cam face (43) is arranged in the outer edge of described ways.
4. seat reclining device according to claim 3, wherein, in described at least one ways (42a, 42b), be furnished with second gathering sill (44), and described at least one second cam face (45) is arranged in the edge of described second gathering sill (44).
5. according to each described seat reclining device in the claim 2 to 4, described seat reclining device comprises elastic mechanism (38a-38c), and described elastic mechanism is used for described at least one second rotating supporting member (33) towards described at least one second cam face (45) prestretched.
6. according to each described seat reclining device in the claim 1 to 5, wherein, described linear driving mechanism (17) comprising: the electro-motor (18) that is fixed to described base component (11); Be connected to the rotary screw (20) of described motor; And drive member (21), described drive member is threaded io on the described screw rod and is fixed to described seat supporting member (40).
7. according to each described seat reclining device in the claim 1 to 6, wherein, described base component (11) comprises two first gathering sills (16), two first rotating supporting member (31) and two second rotating supporting member (33), and described first gathering sill, described first rotating supporting member and described second rotating supporting member are arranged on the relative both lateral sides of described base component (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 the respective lateral side place that described chair mounted plate is arranged on described chair mounted plate (41), and each ways (42a, 42b) comprises corresponding first cam face (43) and corresponding second cam face (45).
8. seat reclining device according to claim 7, wherein, described linear driving mechanism (17) medially is arranged between the both lateral sides of described base component (11) and described seat supporting member (40), and is basically parallel to the both lateral sides of described base component (11) and described seat supporting member (40).
9. electric wheelchair, described electric wheelchair comprise underframe (1), seat (2) and according to each described seat reclining device (3) in the claim 1 to 8.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1051018-8 | 2010-09-30 | ||
| SE1051018 | 2010-09-30 | ||
| PCT/EP2011/066833 WO2012041890A1 (en) | 2010-09-30 | 2011-09-28 | Seat tilt apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103209667A true CN103209667A (en) | 2013-07-17 |
| CN103209667B 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 EP EP20110766946 patent/EP2621444B1/en active Active
- 2011-09-28 WO PCT/EP2011/066833 patent/WO2012041890A1/en active Application Filing
- 2011-09-28 CN CN201180047643.6A patent/CN103209667B/en not_active Expired - Fee Related
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 |
|---|---|
| CN103209667B (en) | 2016-05-04 |
| EP2621444A1 (en) | 2013-08-07 |
| EP2621444B1 (en) | 2015-04-22 |
| WO2012041890A1 (en) | 2012-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8419130B2 (en) | Seat tilt apparatus | |
| CN1847049A (en) | Vehicle seat | |
| CN101137307A (en) | Tension adjustment mechanism for a chair | |
| CN101077696B (en) | Seat apparatus for a vehicle | |
| CN101323088B (en) | Support construction for a control panel of a machine tool | |
| CN102985285A (en) | Adjustment device for motor vehicle seats, in particular height adjustment devices | |
| CN109501744A (en) | Vehicle location adjusts device | |
| CN104644366A (en) | Operating table | |
| CN101175942B (en) | Positioning foot unit of a domestic appliance | |
| CN103264645A (en) | Seat-adjusting device and vehicle including same | |
| US11364761B2 (en) | Vehicle suspension device | |
| KR100997902B1 (en) | Device for assembly of liquid rocket engine's nozzle extension | |
| JP6925923B2 (en) | Electric vehicle | |
| CN201833657U (en) | Printing platform lifting device for jet printer | |
| KR20050116376A (en) | Walking structure of object | |
| CN109099266A (en) | A kind of rig a ship bracket automatically lock support device | |
| EP1863671A1 (en) | Adjustable seat construction | |
| CN102463910A (en) | Vehicle seat frame with seat inclined angle adjusting device | |
| CN110979504A (en) | Posture self-adaptive walking-aid robot | |
| CN103209667A (en) | Seat tilt apparatus | |
| US20130284874A1 (en) | Seat underframe for motor vehicle seats | |
| JP5531878B2 (en) | Press machine | |
| KR20160069842A (en) | Apparatus and system for adjusting spring constant of transverse leaf spring in suspension of vehicle | |
| CN101058195B (en) | Regulating mechanism for universal cutter shaft | |
| KR20140032173A (en) | Seat for vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 |