CN106687095A - Stairlift - Google Patents
Stairlift Download PDFInfo
- Publication number
- CN106687095A CN106687095A CN201580039108.4A CN201580039108A CN106687095A CN 106687095 A CN106687095 A CN 106687095A CN 201580039108 A CN201580039108 A CN 201580039108A CN 106687095 A CN106687095 A CN 106687095A
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- CN
- China
- Prior art keywords
- crus secunda
- stair
- bearing
- stair lift
- angle position
- 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.)
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- 210000001699 lower leg Anatomy 0.000 claims description 184
- 238000005452 bending Methods 0.000 claims description 21
- 230000001360 synchronised effect Effects 0.000 claims description 19
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 230000033001 locomotion Effects 0.000 claims description 7
- 230000009467 reduction Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 4
- 230000005520 electrodynamics Effects 0.000 claims 1
- 210000002683 foot Anatomy 0.000 description 81
- 230000014616 translation Effects 0.000 description 6
- 238000013519 translation Methods 0.000 description 6
- 230000001174 ascending effect Effects 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/06—Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces
- B66B9/08—Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces associated with stairways, e.g. for transporting disabled persons
-
- 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
- A61G5/06—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps
- A61G5/061—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps for climbing stairs
-
- 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
- A61G5/06—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps
- A61G5/063—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps with eccentrically mounted wheels
- A61G5/065—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps with eccentrically mounted wheels with three or more wheels mounted on a rotary cross member, e.g. spiders or spoked wheels with small wheels at the end of the spokes
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Structural Engineering (AREA)
- Handcart (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
Stairlift (1) comprising a frame (2) provided with at least one unit (3) for raising, or lowering, said stairlift along the stairs (100) having a plurality of bearing surfaces (100a, 102a, 103 a, 100b) and at least one couple of wheels for the sliding of said stairlift, said at least one unit (3) comprising at least one first foot (4) movably constrained to said frame (2), directly or indirectly, in order to raise, or lower, said stairlift (1) along said stairs (100), characterized in that said at least one first foot (4) is shaped so that to be contemporaneously in contact with at least two bearing surfaces (100a, 102a; 102a; 103a; 103a, 100b) of said plurality of bearing surfaces (100a, 102a, 103 a, 100b) placed at different heights, during at least part of the raising, or lowering, of said stairlift (1) along said stairs (100).
Description
Technical field
The present invention relates to a kind of stair lift.
Specifically, involved stair lift is for by the disabled is along straight stair or spiral stairway rising or drops
It is low.More specifically, the stair lift is also advantageously used in and the common wheelchair that the disabled moves is raised and lowered.
Prior art
Stair lift is known in the prior art, and the stair lift includes framework, lifting unit and a pair
Movable pulley, the lifting unit make stair lift itself be raised and lowered along stair, when the stair lift is along building
When the ascending step or reduction step of ladder are completed, the pair of movable pulley is sliding on upper strata ground or lower floor relative to stair
Move the stair lift.Above-mentioned carriage includes the wheel of the bottom for being easy to be arranged on the framework.
For example, the patent documentation ITMC2008A043 possessed by present applicant describes a kind of building for being provided with framework
Terraced elevator, two can 360 ° rotation cranks be connected to the framework.For the movement of stair lift, two cranks from
Pivoted by two, end its center of idle pulley correspondence.When stair lift is close to step, two cranks are rotated by 360 °, and make respective
Idle pulley is on the step bearing-surface of itself.When two cranks continue rotation, two idle pulleys start to make stair lift sheet
Body is raised, therefore two idle pulleys are used as the raising device of stair lift itself.
Although such stair lift is very simple and highly effective, it is required that skilled operator is on the scene always, this is ripe
Experienced operator lays oneself open to the rear portion of stair lift, in stair lift along the ascending step of stair and reduction step phase
Between all make stair lift keep balance.
Furthermore, and the patent documentation ITPG2010A000034 possessed by present applicant describes a kind of stair
Elevator, the stair lift include at least one lifting unit, and the lifting unit makes the stair lift from stair
The lower platform of one step is increased to the upper mounting plate of the one-level in stair, or makes one-level of the stair lift from stair
Upper mounting plate is reduced to the lower platform of the one-level in stair.The lifting unit includes the frame for being rotatably restrained to stair lift
First foot of frame, and in a period of time during rotation, first foot directly or indirectly firmly grasps the upper mounting plate of step
First area is so that stair lift is raised and lowered.Additionally, the lifting unit be provided with can be relative to stair lift rotary flat
In the crus secunda of shifting and synchronizer, and a period of time during crus secunda rotation translation, the crus secunda directly or
Ground connection firmly grasps the second area of the lower platform of step so that stair lift is raised and lowered, and the synchronizer is used for when the first foot
Rotation the first foot of translation and crus secunda when firmly grasped with crus secunda.
However, such stair lift has some shortcomings.First, when stair lift must along with stair in one
When the different supporting plane of supporting plane (such as the flat surfaces above or below the stair itself) of level slides, second supports
Foot is certified as very heavy.The shape and size of lazy-tongs and the first and second support feets must be made, when the first foot and
When crus secunda is inoperative, the first foot and crus secunda are all in the position higher than same supporting plane, otherwise the first foot and crus secunda
Can be promoted always, that is, can be increased or decreased always when stair lift is on slip plane.
Additionally, such solution does not prove to be independent of skilled operator completely, the skilled operator must
Must be in stair lift along during being raised and lowered of stair, specifically, when stair lift and its pair of sliding take turns to
Up to the one-level in stair platform when keep stair lift balance.
It is therefore an object of the present invention to realize a kind of stair lift, the structure of the stair lift is compared with prior art
Stair lift is simple, and while is provided with lifting unit, the lifting unit guarantees that stair lift is risen along each of stair
Complete stability that is high or reducing step.
A further object of the present invention is to realize a kind of stair lift, and the stair lift is provided with the lifting of space saving
Unit, the lifting unit is mainly used in the rising and to reduce step transitions be any flat table along above or below stair
The simple slip step in face.
Another object of the present invention is to realize a kind of stair lift, the stair lift will not in a large number using electrically/
Electronic unit is raised and lowered function in which, is entirely almost mechanical part on the contrary.
The content of the invention
These and other purposes are reached by a kind of stair lift, and the stair lift includes framework, the frame
Erection has at least one lifting unit and at least one pair of movable pulley, and at least one lifting unit makes the stair lift edge
Stair to be raised and lowered, described at least one pair of movable pulley for along stair lift described in a planar slide, it is described at least
One lifting unit includes at least one the first foot for being movably directly or indirectly restrained to the framework, so that institute
State stair lift to be raised and lowered along the stair, it is characterised in that described at least one first feet are shaped as, described
At least a period of time during stair lift is raised and lowered along the stair is interior, and described at least one first feet are connect simultaneously
At least two bearing-surfaces of the stair are touched, at least two bearing-surface has differing heights.
In fact, during the ascending step or reduction step of stair lift of the invention, the elevator
Machine always contacts at least two platforms of two subsequent steps, raises along the step to improve the stair lift
Or the stability during reducing.This is reached by described at least one first feet are eligibly shaped.
Specific embodiment of the invention, described at least one first feet do L-shaped, so as to described at least one
At least two different two differences of area contact and continuous step of the available free end for being preferably provided in " L " of one foot
Platform.According to preferred embodiment, the free end of first foot includes at least one cylindrical joint element.
According to the present invention, at least one lifting unit includes that at least one is hinged to the framework in the first pin joint
The first crank and at least one the second crank for being hinged to the framework in the second pin joint, wherein described at least one first
Foot is rotatably restrained to described at least one first cranks and at least one second crank.Therefore, the final frame
Frame, described at least one first cranks, described at least one second cranks and at least one first foot define double leval jib
Mechanism so that when the stair lift is along during being raised and lowered of the stair, the first script body can be described
A crank in two cranks carries out 360 ° of rotation translations relative to the framework after being driven in rotation.It is described to drive rotation
Can for example due to drive the electro-motor of crank rotation, the presence of hydraulic motor or other kinds of motor and occur.Due to
The gradient that rotate freely permission adjustment first foot of first foot relative to first and second crank, so that
At least when the stair lift is in ascent stage (that is, the pair of movable pulley and the framework rise to completely to leave and appoint
What bearing-surface), first foot bearing-surface of steps different from two can keep contacting always, therefore proposed solution
Also permission solution will produced problem when the step of the stair is configured in on-fixed height.
According to the present invention, at least one lifting unit is also described including being movably directly or indirectly restrained to
At least one crus secunda of framework, and at least one lazy-tongs, raise along the stair in the stair lift or
In at least a period of time during reduction, at least one lazy-tongs be used for synchronous at least one crus secunda with it is described
The displacement of at least one first feet, under the control of described at least one first feet and due to the lazy-tongs, it is described extremely
A few crus secunda changes its Angle Position relative at least one of the plurality of bearing-surface bearing-surface of the stair, and
Depending on the direction of power, at least when at least one crus secunda contacts the bearing-surface of the stair or contacts in the stair
During the riser of one-level, at least one crus secunda bears a torque, and the torque is suitable to seal at least one crus secunda
Lock in position, so as at least when described at least one first feet do not contact be in differing heights at least two
The stair lift is supported during bearing surface, or pushes at least one crus secunda to bending position, so as to the stair liter
Drop machine slides.
Again according to the present invention, under the control of described at least one first feet and due to the lazy-tongs, it is described extremely
The Angle Position of a few crus secunda thus relative at least one of the plurality of bearing-surface bearing-surface the first Angle Position with
Change between second Angle Position, so that：
- at least when at least one crus secunda contacts at least one bearing-surface, described at least one first
At least one crus secunda described in during Angle Position bears a torque, and the torque is suitable to be locked at least one crus secunda suitable
When position, so as at least when described at least one first feet do not contact at least two bearing-surface in differing heights
Support the stair lift；And
- at least when at least one crus secunda contacts at least one bearing-surface, in second Angle Position
At least one crus secunda bears a torque, and the torque is suitable to push at least one crus secunda to bending position, with
Toilet states stair lift slip.
Therefore, in fact, when the crus secunda contacts bearing-surface, at the first position, the crus secunda bears one
Torque, the torque by the crus secunda keep block in position, so as to prevent the stair lift it is any enter one
Step anterior displacement, additionally, during described at least one first feet are repositioned on differing heights two surfaces (also
I.e. when described at least one first feet actually do not contact at least two different surfaces), the crus secunda also fills
Work as support member.On the contrary, when the crus secunda encounters bearing-surface, in the second position, to bear one contrary for the crus secunda
Torque, the contrary torque take bending position to the crus secunda, in order to avoid the stair lift is hindered in the upper of the stair
Slide on surface or lower surface.
Similarly, also when the crus secunda contacts the riser of the afterbody in the stair, and the stair liter
When drop machine is moved rearwards by, at the first position, the crus secunda is still under a torque, and the torque is by the crus secunda band
To bending position, in order to avoid hinder the stair lift to slide on the upper surface of the stair.Therefore, in fact such second
Foot is not only (that is, in the upper of the stair lift during the stair lift is raised and lowered step along the stair
During the stage of liter) make the stair lift more stable, and can bend to aid in the stair lift along institute
The upper mounting plate or lower platform for stating stair slides.So, it is to avoid the lifting unit is hindered or hinders the stair lift sheet
Body slides.
In another embodiment, at least when at least one crus secunda contacts at least one bearing-surface and holds
When being suitable to at least one crus secunda to block torque in position, described at least one pair of movable pulley contact is extra
Bearing-surface, the height of the height residing for the extra bearing-surface and the bearing-surface for supporting at least one crus secunda
Difference, to support described when described at least one first feet do not contact at least two bearing-surface in differing heights
Stair lift.Specifically, at least when at least one crus secunda contacts at least one bearing-surface and is in institute
When stating the first Angle Position, described at least one pair of movable pulley contacts extra bearing-surface, the height residing for the extra bearing-surface
It is different from the height of the bearing-surface for supporting at least one crus secunda.This solution causes to be raised and lowered any
In step, and thus also when by described at least one first feet from ground raise with two of differing heights other
When repositioning at least one first foot at bearing surface, the stair lift is permanently connected to two in differing heights
Bearing surface, so the maximum stability of stair lift is guaranteed described in any ascending step.
Specifically, at least one crus secunda is rotatably restrained to the framework, and at least when it is described extremely
When a few crus secunda is not contacted with least one bearing-surface, at least one crus secunda first Angle Position with
Crankmotion is carried out between second Angle Position and between second Angle Position and first Angle Position, it is excellent
Selection of land drives at least one crus secunda by described at least one first feet for carrying out rotating translation.Preferably, it is described at least
Upright position of one crus secunda between first Angle Position and second Angle Position.Additionally, described at least one
Crus secunda is arranged on the position before described at least one first feet.
According to another embodiment of the invention, the lazy-tongs include a device, and wherein at least is at least one described in
When individual crus secunda does not contact at least one bearing-surface, described device drives at least one first foot and described at least
The catch cropping synchronous shift of individual crus secunda, and at least when at least one crus secunda and at least one bearing-surface or with institute
The riser contact of the afterbody in stair is stated, at least one crus secunda bears and is suitable to push away at least one crus secunda
During the torque slided so as to the stair lift to bending position, described device prevent at least one first foot with it is described
The catch cropping synchronous shift of at least one crus secunda.
A specific embodiment of the invention, the lazy-tongs include a device, wherein at least when it is described extremely
A few crus secunda does not contact at least one bearing-surface or when at least one crus secunda is in first jiao of position
When putting, described device drives the catch cropping synchronous shift of at least one first foot and at least one crus secunda, Yi Jizhi
Less when at least one crus secunda is in second Angle Position and is contacted with least one bearing-surface, or at least
When at least one crus secunda is contacted with the riser of the afterbody in the stair, at least one described in described device prevention
The catch cropping synchronous shift of individual first foot and at least one crus secunda.
Specifically, according to the embodiment, described device includes at least one connecting rod and at least one connection strap, it is described extremely
A few connecting rod is rotatably restrained to the framework and, at least one piece company synchronous with described at least one first feet
Narrow bars are used at least one connecting rod to be connected at least one crus secunda directly or indirectly；At least one company
Bar is restrained at least one connection strap so that at least when at least one crus secunda does not contact described at least one
During bearing surface, at least one connection strap movement described at least one connecting rod driving, to drive at least one crus secunda to exist
Displacement between first Angle Position and second Angle Position, so as at least when at least one crus secunda is in described the
Two Angle Positions and when contacting with least one bearing-surface, or when upper at least one crus secunda with the stair
When the riser of one-level is contacted, at least one connection strap relative at least one rod slide, will described at least one
Individual crus secunda is moved to the bending position.Advantageously, at least one connection strap includes at least one slit, at least works as institute
State at least one crus secunda contact with least one bearing-surface and in second Angle Position when, or when it is described at least
When one crus secunda is contacted with the riser of the upper level in the stair, at least one connecting rod is directly or indirectly restrained
Slide at least one slit.Therefore, this is allowed when the crus secunda and the building in second Angle Position
The bearing-surface of the lower surface of ladder makes described at least one first feet discharge from least one crus secunda when contacting, and therefore
Auxiliary at least one crus secunda is allowed to be moved to bending position.This allows the size for greatly reducing the lifting unit.
A specific aspect of the invention, it should be noted, however, that the purpose of the present invention also passes through a kind of stair
Reaching, the stair lift includes framework to elevator, and the framework is provided with least one lifting unit and at least one pair of is slided
Driving wheel, at least one lifting unit make the stair lift be raised and lowered along the stair with multiple bearing-surfaces,
Described at least one pair of movable pulley is used for the stair lift that slides, and at least one lifting unit includes that at least one is removable
Directly or indirectly be restrained to the first foot of the framework dynamicly so that the stair lift raise along the stair or
Reduce, be movably directly or indirectly restrained at least one crus secunda of the framework, and at least one synchrodrive
Structure, at least a period of time during the stair lift is raised and lowered along the stair, described at least one is same
The displacement of step mechanism synchronously at least one crus secunda and described at least one first feet, at least one crus secunda are relative
At least one of the plurality of bearing-surface in stair bearing-surface changes the Angle Position of its own, and depending on power
Direction, at least riser of the one-level at least one crus secunda contacts the bearing-surface of the stair or the contact stair
When, at least one crus secunda bears a torque, and it is appropriate that the torque is suitable to be locked at least one crus secunda
Position, at least to support the stair when described at least one first feet do not contact at least one bearing-surface of the stair
Elevator, or push at least one crus secunda to bending position, so that the stair lift slides.
Description of the drawings
From the following description to the preferred embodiments of the present invention and referring to the drawings, these and its other party of the present invention is in the face of this
Art personnel will be apparent from, and these preferred embodiments are only provided in a non-limiting manner by example, wherein：
Fig. 1 to Fig. 7 is that stair lift of the invention reduces the side view during (or rising) along stair；
Fig. 8 to Figure 10 is stair lift of the invention reduce near the lower surface of stair or promotion during
Side view；
Figure 11 is the axonometric chart of stair lift of the invention.
Specific embodiment
With reference to these accompanying drawings, stair lift of the invention 1 in figure, is shown.
Specifically, as shown in drawings, stair lift 1 includes framework 2, and framework 2 is provided with lifting unit 3 and two pairs of slips
Wheel 30,31 (wheel in each pair movable pulley is only see in Fig. 1 to Figure 10), lifting unit 3 makes stair lift along building
Ladder 100 is raised and lowered, and two pairs of movable pulleies 30,31 are for the lower surface 100b or upper surface 100a slip institute along stair 100
State stair lift.Lifting unit 3 includes two the first feet 4 (first foot is only see in Fig. 1 to Figure 10), is placed on frame
Two first feet 4 of the both sides 2a of frame 2,2b are restrained to framework 2 indirectly so that stair lift 1 is raised along stair 100
Or reduce, in illustrative example shown in the drawings, stair 100 include three steps 101,102 and 103 and four bearing-surfaces
Or platform 100a, 102a, 103a and 100b.It should be noted that upper surface 100a and lower surface 100b is respectively stair 100
Upper mounting plate and lower platform, stair lift 1 slide along stair 100, and platform 102a and 103a are the flat of step 102 and 103
Platform.It is apparent that stair lift of the invention 1 can be also operated on stair of different shapes, the stair of different shapes
Such as spiral stairway, or the stair with more or less step number, the stair thus have different number of bearing-surface or
Platform.
Advantageously, each first foot is shaped as, during stair lift 1 is raised and lowered along stair 100 at least
Two bearing-surfaces can be contacted simultaneously in a period of time, the such as surface 100a and 102a or 102a and 103a in differing heights or
103a and 100b.In the accompanying drawings, such two bearing-surfaces are the platform of the upper mounting plate 100a and step 102 of stair 100 respectively
The platform 103a of the lower platform 100b and step 103 of 102a (as shown in Fig. 3 to Fig. 7) or stair 100 is (such as Fig. 8 to Figure 10 institutes
Show).To put it more simply, the platform 103a of the platform 102a and step 103 of two bearing-surfaces respectively step 102 is not shown
Situation, but such situation is similar to the situation shown in Fig. 3 to Figure 10 in fact.
The shape permission of the first foot 4 guiding stair lift 1 under security situation when stair lift 1 is raised and reduced
Towards stair.In fact, during stair lift 1 is raised and lowered, that is, the stair lift is during ascent stage, two
Individual first foot 4 passes through to lean against with differing heights two different bearing-surfaces, so as to allow to provide higher peace to user
All risk insurance hinders, and keeps the balance of stair lift 1 without any operator during the operation.
Additionally, doing L-shaped just because of the first foot 4, each first foot 4 has two free ends 4a, 4b, and two cylindrical
Joint element 61 is connected with two free ends 4a, 4b respectively.
And the embodiment described in reference to the accompanying drawings, lifting unit 3 are included for each the first foot 4 in the first pin joint 6a
The first crank 6 for being hinged to framework 2 and the second crank 7 that framework 2 is hinged in the second pin joint 7a, wherein each first foot 4
First crank 6 and the second crank 7 are restrained to rotatably in pin joint 4c and 4d.So framework 2, the first crank 6, second are bent
Handle 7 and the first foot 4 define real quadric chain in every side 2a, 2b of framework 2.
Again according to embodiment described herein, stair lift 1 includes electro-motor (not shown here), the electronic horse
Up to framework 2 is fixed to and the pin joint 7a with the second crank 7 is placed on power transmission shaft；Each second crank 7 is so as to by described
Electrical motor driven, and respective first crank 6 is rotated and is made respective to be rotatably constrained in two 6 Hes of crank
The 7 rotation translation of the first foot 4.Must raise along stair 100 or reduce depending on stair lift 1, such motor can be suitable
Clockwise and counterclockwise rotates.It should be pointed out that according to known technology, the first crank 6 and the second crank 7 pass through chain
Bar is connected with each other so that the rotation mode of a crank is consistent with the rotation mode of another crank, so as to avoid two 6 Hes of crank
7 operations that the quadric chain is disturbed because of rotating in opposite directions.
According to solution described herein, lifting unit 3 also includes two crus secundas 8, and each crus secunda 8 is arranged on
Side 2a, 2b of framework 2 and the end position being arranged on before the first foot 4.Each crus secunda 8 is restrained to framework 2 indirectly.This
Outward, lifting unit 3 includes the lazy-tongs 9 of the displacement for synchronous two the first feet 4 and two crus secundas 8.Therefore, it is actual
On, such lazy-tongs 9 allow two crus secundas 8 to limit and moved with the movement of two the first feet 4 in a synchronous manner, two the
The movement of one foot 4 is alternately driven by the second crank 7, and above-mentioned electro-motor forces the second crank 7 to rotate.
During the rotation of two the first feet 4 is translated, the bearing-surface of the Angle Position of each crus secunda 8 relative to stair 100
100a, 102a, 103a, 100b change between the first Angle Position P1 and the second Angle Position P2, so that：
If-crus secunda 8 contacts bearing-surface when being in the first Angle Position P1, the crus secunda 8 bears a torque, the power
The crus secunda 8 is locked in first Angle Position by square, so as at least when two the first feet 4 do not contact in differing heights two
Stair lift 1 is supported during individual bearing-surface；
- when crus secunda 8 be in the second Angle Position P2 when contact bearing-surface in the case of, the crus secunda 8 bears a power
Square, the torque are suitable to push the crus secunda 8 to bending position P3, in order to avoid hinder stair lift 1 to slide (see Fig. 8 to Figure 10).
Likewise, the afterbody 101 of stair 100 is contacted when each of two crus secundas 8 is in the first Angle Position P1
In the case of riser 101b (such as when being moved rearwards by), each of two crus secundas 8 is still under a torque, and the torque is by two
Each of individual crus secunda 8 takes bending position P3 to, in order to avoid hinder the stair lift to slide in the upper surface 100a of stair 100
It is dynamic.
In fact, generally speaking let us say that, direction depending on power (and it is accordingly dependent on the side of torque generation
To), when the riser of the bearing-surface or contact step of each crus secunda 8 contact stair, each 8 remains stationary of crus secunda is with by building
Terraced elevator 1 is stopped in position, so as to allow in order to step is raised and lowered for the next one of stair lift 1 at place
The first foot 4 is repositioned on two bearing-surfaces of significantly different height, or when each crus secunda 8 contacts the supporting of stair
Face or contact step riser when, each crus secunda 8 by the riser of same bearing-surface or the step push to bending position P3 (that is,
The bending position P3 for not hindering the stair lift to slide along general closed planar).
It should be noted that due to the solution, when two the first feet 4 are in ascent stage (that is, when two first
When foot 4 does not contact any bearing-surface), the condition that the bearing-surface of stair 100 is contacted when each crus secunda 8 is in Angle Position P1 is able to
Realize.In the stair lift of known technology, such as the stair lift described in document ITPG2010A000034, at this
In the case of, absolute demand be operator it is on the scene keep stair lift 1 balance until the first foot 4 is contacted for elevator
The bearing-surface being raised and lowered next time of machine 1.
Further, it is necessary to supplement, the free end 8a of each crus secunda 8 includes idle pulley 60.
Fig. 1 shows that from the upper surface 100a of stair 100 each crus secunda 8 for leaving touches step in Angle Position P1
102 bearing-surface 102a, therefore as shown in subsequent Fig. 2 and Fig. 3, each crus secunda 8 keeps resting on a position to allow
Two the first feet 4 are brought back to while contacting two bearing-surfaces, such as the surface 100a and 102a in differing heights is (such as Fig. 2
With shown in Fig. 3) position.
Then, Fig. 4, Fig. 5, Fig. 6 and Fig. 7 show different step, wherein in two the first feet 4 from the supporting of step 101
Stair lift 1 is supported by two the first feet 4 during the bearing-surface 102a that face 100a moves to step 102.In such step
Period, two crus secundas 8 shift to lower step 103 then, so as to reach bearing-surface 103a in first position P1.According to Fig. 7 institutes
The position for being reached for showing, two crus secundas 8 positioned at the same position shown in Fig. 1.Must be noted that in such stage
Before period and contact bearing-surface 103a, two crus secundas 8 also serve as anti-roll element because two crus secundas 8 always towards
The bearing-surface 103a of next step 103.
It should also be noted that in the case of afterbody 103 (Fig. 8) of the stair lift 1 in stair 100, by
The surface 103a that step 103 is commonly angled relative in the lower surface 100b of stair 100 extends, and two crus secundas 8 are not at angle position
Bearing-surface 103a is contacted when putting P1, and when can be in Angle Position P2, contacts the lower surface 100b of stair 100, therefore two crus secundas
8 bear a torque, and the torque is suitable to push two crus secundas 8 to bending position P3 (see Fig. 9 and Figure 10), so as to stair lift
1 slides.
In the case where making stair lift 1 that the upper surface 100a of stair 100 is increased to from most upper level 101, when being located at
The riser 101b of step 101 can be encountered and be contacted to each crus secunda 8 being moved rearwards by during the P1 of position, therefore two crus secundas 8 hold
By a torque, the torque pushes each crus secunda 8 to bending position P3.
In order to improve the stability of stair lift 1, lazy-tongs 9 are further configured to, at least when each crus secunda 8 connects
Tactile bearing-surface 102a or 103a and in the first Angle Position P1 when, the pair of sliding wheel 30 behind stair lift 1
Contact bearing-surface 100a or 102a, if the bearing-surface 100a or 102a be in higher position point, its highly with each crus secunda 8
The height of the bearing-surface for being contacted is different.This is only illustrated in Fig. 1 and Fig. 2, but such case is applied to all remainders of stair 100
Step 102 and 103, and the stability of stair lift 1 is significantly increased.
As shown in drawings, each crus secunda 8 is rotatably restrained to framework 2, at least appoints when each crus secunda 8 is not contacted
During what bearing-surface, each crus secunda 8 is driven by the first foot 4, and each crus secunda is driven in the first Angle Position by lazy-tongs 9
Carry out between P1 and the second Angle Position P2 and between second Angle Position (P2) and first Angle Position (P1) reciprocal
Rotary motion.
Additionally, two crus secundas 8 are through the vertical position between the first Angle Position P1 and the second Angle Position P2
Put v (shown in broken lines in Fig. 2, Fig. 8 and Fig. 9).Angle beta is also illustrated in accompanying drawing, crus secunda 2 is rotated relative to angle beta, the meter of angle beta
Calculate it is also contemplated that situations below：The assessment reference of the Angle Position of crus secunda 8 pin joint of straight line r and idle pulley 60, straight line r will be every
The pin joint 8b of individual crus secunda 8 is connected to framework 2, and the pin joint of idle pulley 60 is placed on the end 8a of each crus secunda 8.
And the embodiment described in reference to the accompanying drawings, lazy-tongs 9 include device 50, wherein at least works as two crus secundas 8 not
When contacting any bearing-surface or when two crus secundas 8 are in the first Angle Position P1, device 50 drives two the first feet 4
With the catch cropping synchronous shift of two crus secundas 8, and at least when two crus secundas 8 reach all bearing-surfaces from stair 100
During the bearing-surface of 100a, 102a, 103a and 100b, in the second Angle Position P2 when device 50 prevent two the first feet 4 and two
The catch cropping synchronous shift of crus secunda 8.On other occasions, device 50 only prevents two the in the lower surface 100b of stair 100
The catch cropping synchronous shift of one foot 4 and two crus secundas 8.When crus secunda 8 contacts the perpendicular of such afterbody in most upper level 101
During plate 101b, can also prevent to make synchronous.
Specifically, device 50 includes the connecting rod 10 and connection strap 11 for each the first foot 4 and each crus secunda 8, even
Bar 10 is rotatably restrained to framework 2 and synchronous with two the first feet 4, and it is right that connection strap 11 is used to being connected to every connecting rod 10
The crus secunda 8 answered.Every connecting rod is restrained to corresponding connection strap 11 so that at least when crus secunda 8, (crus secunda 8 passes through
The protuberance 15 integrated with same crus secunda 8 is connected with connection strap 11) when not contacting any bearing-surface, 10 drive connection of connecting rod
Bar 11 is moved, to drive the displacement between the first Angle Position P1 and the second Angle Position P2 of crus secunda 8, and on the contrary
Ground so that at least when each crus secunda 8 is in second position P2 and is contacted with bearing-surface (see Fig. 8 to Figure 10), connecting rod 10
Slide relative to connection strap 11, the crus secunda is moved to into bending position P3.What this can also work as crus secunda 8 and stair 100 should
Realize when the riser 101b of most upper level 101 is contacted.
Specifically, every connection strap 11 includes slit 12, when the corresponding crus secunda 8 connected with connection strap 11 and supporting
Face 100b contact and in the second Angle Position P2 when (see Fig. 8 to Figure 10 again), connecting rod 10 by pin (not shown in accompanying drawing) about
Beam slides in slit 12.In fact, in second Angle Position P2, the straight line r integrated with crus secunda 8 is relative to vertical line
V is located at position (that is, at further away from step) above, and crus secunda 8 bears a torque, and the torque promotes crus secunda 8 with one
The mode of kind rotates, and which causes connection strap 11 to slide relative to connecting rod 10, so as to the first foot 4 and second is prevented in certain degree
The catch cropping synchronized links of foot 8.When each crus secunda 8 is contacted with the riser 101b of the most upper level 101 of stair 100, can also send out
Translation of the life connecting rod along the slit 12 of connection strap 11, because riser 101b is produced on each crus secunda 8, be related to will be every
Individual crus secunda 8 shifts to the torque (not shown in such case accompanying drawing, but described similar to Figure 10) of bending position P3.
Conversely, when crus secunda 8 is in the first Angle Position P1 in the case of contact bearing-surface, wherein with crus secunda 8 integrally
The straight line r of change is moved back by (that is, being closer to step) relative to vertical line v, and the torque that then crus secunda 8 bears is by stop unit
Balancing, the stopping element is integrated with the framework and can be reaching in contrast to crus secunda 8 for part (not shown in accompanying drawing)
The path of bending position P3 hinders the rotation of crus secunda 8.
Again according to embodiment described herein, the lazy-tongs 9 include the first driving pulley for each first foot 4
80 and the second pin joint 95b on the first foot 4, the first driving pulley 80 is rotated by the arm for being provided with the first pin joint 95a, the
One pin joint 95a is located on framework 2 and coaxial with the pin joint 6a of the first crank 6.95b is also bent with first for second pin joint
The pin joint 4c of handle 6 is coaxial, but at 95, the arm the first foot 4 side, the side is contrary residing for first crank 6
Side.Lazy-tongs 9 also include second pulley 81 and transmission belt 82 (or chain), and second pulley 82 is rotatably restrained to framework
Pin joint 81a in 2, transmission belt 82 (or chain) is for transmitting the motion between first pulley 80 and second pulley 81.Additionally,
Every connecting rod 10 is integrally restrained to corresponding second pulley 81 so that corresponding second pulley 81 is revolved in a synchronous manner
Turn every connecting rod 10.
As first pulley 80 is integrated with arm 95 and also shares pin joint 95, it follows that conclusion every connecting rod 10 is by right
The second pulley 81 answered rotates, and second pulley 81 is rotated by first pulley 80 with the synchronous rotary of the first foot 4 with arm 95.
Again according to embodiment described herein, the lazy-tongs also include pushing mechanism 90, at least when two second
When foot does not contact any bearing-surface, pushing mechanism 90 shifts two crus secundas 8 onto first Angle Position P1.Specifically, it is described to push away
Motivation structure 90 includes two compression springs 91 (compression spring is merely illustrated in accompanying drawing), one end of each compression spring 91
91a is rotatably constrained in crus secunda 8, and the second end 91a of each compression spring 91 is rotatably constrained in framework 2.
Claims (16)
1. a kind of stair lift (1), the stair lift (1) include framework (2), and the framework (2) is provided with least one
Lifting unit (3) and at least one pair of movable pulley, at least one lifting unit (3) make the stair lift along with many
The stair (100) of individual bearing-surface (100a, 102a, 103a, 100b) are raised and lowered, and described at least one pair of movable pulley is used to slide
The stair lift, at least one lifting unit (3) are movably directly or indirectly restrained including at least one
In first foot (4) of the framework (2), so that the stair lift (1) is raised and lowered along the stair (100), its
It is characterised by, described at least one first feet (4) are shaped to, rises along the stair (100) in the stair lift (1)
In at least a period of time during high or reduction, described at least one first feet (4) are while the plurality of bearing-surface of contact
At least two bearing-surface (100a, 102a in (100a, 102a, 103a, 100b) in differing heights；102a, 103a；103a,
100b)。
2. stair lift (1) according to claim 1, it is characterised in that described at least one first feet (4) make L
Shape.
3. stair lift (1) according to claim 1 and 2, it is characterised in that at least one lifting unit (3)
First crank (6) of the framework (2) and at least one is hinged in second hinge in the first pin joint (6a) including at least one
Contact (7b) is hinged to second crank (7) of the framework (2), wherein described at least one first feet (4) are rotatably by about
At least one first cranks (6) described in Shu Yu and at least one second crank (7).
4. stair lift (1) according to one or more in aforementioned claim, it is characterised in that described at least
Individual lifting unit (3) also includes at least one crus secunda (8) for being movably directly or indirectly restrained to the framework, with
And at least one lazy-tongs (9), during at least a section during the stair lift is raised and lowered along the stair
In, at least one lazy-tongs (9) are for synchronous at least one crus secunda (8) and described at least one first feet
(4) displacement, at least one crus secunda (8) relative to the stair (100) the plurality of bearing-surface (100a, 102a,
103a, 100b) at least one of bearing-surface change the Angle Position of its own, and depending on the direction of power, at least when described
When at least one crus secunda (8) contacts the bearing-surface of the stair or contacts the riser of one-level in the stair, it is described at least
One crus secunda (8) bears a torque, and the torque is suitable to block in position at least one crus secunda (8),
At least to support institute when described at least one first feet (4) do not contact at least two bearing-surface in differing heights
Stair lift (1) is stated, or pushes at least one crus secunda (8) to bending position (P3), so as to the elevator
Machine (1) slides.
5. stair lift (1) according to one or more in aforementioned claim, it is characterised in that described at least
The Angle Position of individual crus secunda (8) relative to the stair at least one of the plurality of bearing-surface bearing-surface first jiao of position
Put, so that：
- at least when at least one crus secunda (8) contacts at least one bearing-surface (102a；When 103a), at least one
At least one crus secunda (8) described in during individual first Angle Position (P1) bears a torque, the torque be suitable to by it is described at least
One crus secunda (8) is blocked in position, so as at least when described at least one first feet (4) do not contact described in not
The stair lift (1) is supported during level at least two bearing-surface；
- at least when at least one crus secunda (8) contacts at least one bearing-surface, in second Angle Position (P2)
At least one crus secundas of Shi Suoshu (8) bears a torque, and the torque is suitable to push at least one crus secunda (8) to bending
Position (P3), so that the stair lift (1) slides；And
- at least when at least one crus secunda (8) contacts the riser of the most upper level (101) in the stair (100),
Described at least one during the first Angle Position (P1) described at least one crus secunda (8) bear a torque, the torque is suitable to institute
State at least one crus secunda (8) and push bending position (P3) to, so that the stair lift (1) slides.
6. stair lift (1) according to claim 4 or 5, it is characterised in that at least when at least one crus secunda
(8) contact at least one bearing-surface (102a；103a) and bear and be suitable to be locked at least one crus secunda (8)
During the torque of settling position, described at least one pair of movable pulley (30；31) contact extra bearing-surface (100a；102a), the volume
Height residing for outer bearing-surface is different from the height of the bearing-surface for supporting at least one crus secunda (8).
7. stair lift (1) according to one or more in claim 4 to 6, it is characterised in that described at least
Individual crus secunda (8) is rotatably restrained to the framework (2), and at least when at least one crus secunda (8) with it is described
When at least one bearing-surface in multiple bearing-surfaces is not contacted, at least one crus secunda (8) is driven described first
Between Angle Position (P1) and second Angle Position (P2) and in second Angle Position (P2) and first Angle Position
(P1) crankmotion is carried out between.
8. stair lift (1) according to claim 7, it is characterised in that at least one crus secunda (8) is through institute
State the upright position between the first Angle Position (P1) and second Angle Position (P2).
9. stair lift (1) according to one or more in claim 4 to 8, it is characterised in that described at least
Individual crus secunda (8) is arranged on the position before described at least one first feet.
10. stair lift (1) according to one or more in claim 4 to 9, it is characterised in that the synchronization
Mechanism (9) includes device (50), wherein at least when at least one crus secunda does not contact at least one bearing-surface or
When at least one crus secunda is in first Angle Position, described device (50) drives at least one first foot to person
(4) the catch cropping synchronous shift with least one crus secunda (8), and at least when at least one crus secunda is in described
Second Angle Position and when contacting with least one bearing-surface, described device (50) prevent at least one first foot with
The catch cropping synchronous shift of at least one crus secunda.
11. stair lifts (1) according to claim 10, it is characterised in that described device includes at least one connecting rod
(10) and at least one connection strap (11), at least one connecting rod (10) be rotatably restrained to the framework and with institute
At least one first foot synchronizations are stated, at least one connection strap (11) is for directly or indirectly at least one connecting rod by described in
At least one crus secunda is connected to, at least one connecting rod is restrained at least one connection strap (11) so that
At least when at least one crus secunda (8) does not contact at least one bearing-surface, at least one connecting rod drives institute
State the movement of at least one connection strap, with drive at least one crus secunda first Angle Position (P1) with described second jiao
Displacement between position (P2), so as at least when at least one crus secunda be in second Angle Position and with it is described at least
When one bearing-surface is contacted, at least one connection strap (11) relative at least one rod slide, will described in extremely
A few crus secunda is moved to the bending position (P3).
12. stair lifts (1) according to claim 11, it is characterised in that at least one connection strap (11) bag
At least one slit (12) is included, at least when at least one crus secunda is contacted with least one bearing-surface and is in institute
When stating the second Angle Position, at least one connecting rod is directly or indirectly constrained at least one slit (12) sliding
It is dynamic.
13. stair lifts (1) according to one or more in aforementioned claim, it is characterised in that the stair
Elevator (1) includes at least one electrodynamic type or hydraulic motor, described at least one first cranks or described at least one
Two cranks or at least one first foot are driven by least one motor.
14. stair lifts (1) according to claim 13, it is characterised in that the lazy-tongs include at least one
The first pulley (80) that directly or indirectly driven by the motor, at least one are rotatably restrained to the framework (2)
Second pulley (81), and at least one be used for transmit the transmission belt moved between the first pulley and the second pulley
(82), at least one connecting rod is integrally restrained at least one second pulley.
15. stair lifts (1) according to one or more in claim 4 to 14, it is characterised in that the synchronization
Mechanism also includes pushing mechanism (90), at least described in during at least one crus secunda does not contact the plurality of bearing-surface extremely
During a few bearing-surface, the drive mechanism (90) shifts at least one crus secunda (8) onto first Angle Position (P1).
16. stair lifts (1) according to claim 15, it is characterised in that the pushing mechanism includes at least one
Compression spring (91), one end (91a) of at least one compression spring (91) are rotatably constrained in described at least one
Two feet (8), second end (91b) of at least one compression spring (91) are rotatably constrained in the framework (2).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITPG2014A000028 | 2014-05-20 | ||
| ITPG20140028 | 2014-05-20 | ||
| PCT/IB2015/000716 WO2015177625A1 (en) | 2014-05-20 | 2015-05-20 | Stairlift |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106687095A true CN106687095A (en) | 2017-05-17 |
| CN106687095B CN106687095B (en) | 2018-11-06 |
Family
ID=51220749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580039108.4A Active CN106687095B (en) | 2014-05-20 | 2015-05-20 | Stair lift |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3145849B1 (en) |
| JP (1) | JP6687606B2 (en) |
| CN (1) | CN106687095B (en) |
| WO (1) | WO2015177625A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108995741A (en) * | 2018-08-14 | 2018-12-14 | 冯瑞新 | A kind of electric vehicle of climbing stairs |
| WO2019144911A1 (en) * | 2018-01-26 | 2019-08-01 | 林丘 | Stair lifting device |
| CN111936099A (en) * | 2018-01-15 | 2020-11-13 | 安塔诺集团有限公司 | Crawler-type stair climbing device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3081701A1 (en) * | 2018-06-04 | 2019-12-06 | Kerostin Medical | MARKET DESCENT DEVICE FOR TRANSPORT EQUIPMENT |
| IT201900020210A1 (en) | 2019-10-31 | 2021-05-01 | T G R Soc A Responsabilita Limitata | LADDER FOR WHEELCHAIRS |
| IT202100008039A1 (en) | 2021-03-31 | 2022-10-01 | Gaetano Gentile | WHEELCHAIR CLIMBERS |
| WO2024218667A1 (en) * | 2023-04-17 | 2024-10-24 | Antano Group S.R.L. | Stair climber |
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| GB961370A (en) * | 1961-05-15 | 1964-06-17 | Richard Appenrodt | Endless track invalid carriage |
| US3196970A (en) * | 1963-05-17 | 1965-07-27 | Dale E Brenner | Stair-climbing wheel chair |
| US3231290A (en) * | 1962-12-31 | 1966-01-25 | Paul P Weyer | Wheel chair for regular and irregular surface travel |
| US4585241A (en) * | 1982-12-28 | 1986-04-29 | Sunwa Sharyo Manufacturing Co., Ltd. | Carrier for rescuing patients |
| US4618155A (en) * | 1985-11-13 | 1986-10-21 | Jayne Laurence I | Stair-climbing wheelchair |
| CN2320234Y (en) * | 1998-02-19 | 1999-05-26 | 孙卫国 | Electric wheel-chair device capable of going up and down steps |
| CN1720886A (en) * | 2004-07-12 | 2006-01-18 | 日本三和公司 | wheelchair stairlift |
| CN202342323U (en) * | 2011-10-29 | 2012-07-25 | 刘铁儿 | Wheelchair used for climbing stairs |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5447250A (en) * | 1977-09-21 | 1979-04-13 | Ouchi Nobutoshi | Carrier for staircase |
| JPH021269A (en) * | 1988-06-10 | 1990-01-05 | Aisin Aw Co Ltd | Stairs ascending and descending method and vehicle therefor |
-
2015
- 2015-05-20 EP EP15733883.1A patent/EP3145849B1/en active Active
- 2015-05-20 CN CN201580039108.4A patent/CN106687095B/en active Active
- 2015-05-20 WO PCT/IB2015/000716 patent/WO2015177625A1/en not_active Ceased
- 2015-05-20 JP JP2017513373A patent/JP6687606B2/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB961370A (en) * | 1961-05-15 | 1964-06-17 | Richard Appenrodt | Endless track invalid carriage |
| US3231290A (en) * | 1962-12-31 | 1966-01-25 | Paul P Weyer | Wheel chair for regular and irregular surface travel |
| US3196970A (en) * | 1963-05-17 | 1965-07-27 | Dale E Brenner | Stair-climbing wheel chair |
| US4585241A (en) * | 1982-12-28 | 1986-04-29 | Sunwa Sharyo Manufacturing Co., Ltd. | Carrier for rescuing patients |
| US4618155A (en) * | 1985-11-13 | 1986-10-21 | Jayne Laurence I | Stair-climbing wheelchair |
| CN2320234Y (en) * | 1998-02-19 | 1999-05-26 | 孙卫国 | Electric wheel-chair device capable of going up and down steps |
| CN1720886A (en) * | 2004-07-12 | 2006-01-18 | 日本三和公司 | wheelchair stairlift |
| CN202342323U (en) * | 2011-10-29 | 2012-07-25 | 刘铁儿 | Wheelchair used for climbing stairs |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111936099A (en) * | 2018-01-15 | 2020-11-13 | 安塔诺集团有限公司 | Crawler-type stair climbing device |
| WO2019144911A1 (en) * | 2018-01-26 | 2019-08-01 | 林丘 | Stair lifting device |
| EP3760521A4 (en) * | 2018-01-26 | 2021-07-07 | Lin, Qiu | STAIR LIFT DEVICE |
| US11872168B2 (en) | 2018-01-26 | 2024-01-16 | Lin Qiu | Stair lift |
| CN108995741A (en) * | 2018-08-14 | 2018-12-14 | 冯瑞新 | A kind of electric vehicle of climbing stairs |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017523008A (en) | 2017-08-17 |
| WO2015177625A1 (en) | 2015-11-26 |
| EP3145849A1 (en) | 2017-03-29 |
| EP3145849B1 (en) | 2020-01-29 |
| CN106687095B (en) | 2018-11-06 |
| JP6687606B2 (en) | 2020-04-22 |
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