CN105916407A - Lumbar support system - Google Patents

Lumbar support system Download PDF

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Publication number
CN105916407A
CN105916407A CN201580004720.8A CN201580004720A CN105916407A CN 105916407 A CN105916407 A CN 105916407A CN 201580004720 A CN201580004720 A CN 201580004720A CN 105916407 A CN105916407 A CN 105916407A
Authority
CN
China
Prior art keywords
flexible cable
support
actuator
drag
lumbar support
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
Application number
CN201580004720.8A
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Chinese (zh)
Other versions
CN105916407B (en
Inventor
罗伯特·J·麦克米伦
霍里亚·布兰迪尔
保罗·廷德尔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Leggett and Platt Canada Co
Original Assignee
Leggett and Platt Canada Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US14/156,122 external-priority patent/US9193280B2/en
Application filed by Leggett and Platt Canada Co filed Critical Leggett and Platt Canada Co
Priority to CN201910495681.6A priority Critical patent/CN110356301B/en
Publication of CN105916407A publication Critical patent/CN105916407A/en
Application granted granted Critical
Publication of CN105916407B publication Critical patent/CN105916407B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/64—Back-rests or cushions
    • B60N2/66—Lumbar supports
    • B60N2/667—Lumbar supports having flexible support member bowed by applied forces
    • B60N2/6671—Lumbar supports having flexible support member bowed by applied forces with cable actuators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/64—Back-rests or cushions
    • B60N2/66—Lumbar supports
    • B60N2/667—Lumbar supports having flexible support member bowed by applied forces
    • B60N2/6673—Lumbar supports having flexible support member bowed by applied forces with motor driven adjustments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/64—Back-rests or cushions
    • B60N2/66—Lumbar supports

Abstract

An adjustable support system for a seat having a fixed frame includes a support movable from a first position to a second position relative to the frame. An actuator is coupled to only the support and is configured to move the support between the first and second positions. A member is operatively associated with and movable by the actuator. A flexible cable has a first end coupled to the member for travel along the length of the member and a second end coupled to the fixed frame such that movement of the member by the actuator causes the flexible cable to move the support between the first position and the second position.

Description

Lumbar support system
Technical field
The present invention relates to a kind of lumbar support system, this lumbar support system, for using in seat, is particularly used for Use in vehicle seat.
Background technology
A lot of lumbar support systems use electromechanical actuator to move load via Bowden drag-line.But, use Bowden Drag-line frequently results in bad overall system efficiency, and this system typically requires that multiple component, to include for activating Large-scale heavy motor.It addition, these systems trend towards sending during operation noise.
Summary of the invention
In an embodiment of the lumbar support system for backrest, this system includes fixed frame and is connected to The Lordosis support of fixed frame, Lordosis support can move to the second position from primary importance.Motor is coupled to waist Support member.Screwed part operationally engages with described motor, thus described motor makes described screwed part rotate about the axis.The One traveling member engages with screwed part, and the second traveling member engages with screwed part.The rotation of described screwed part makes Described first traveling member and described second traveling member translate in opposite axial directions along described screwed part.Interval Device is between described first traveling member and described second traveling member.Described spacer is configured at described screwed part Upper slip.First flexible cable have be coupled to described first traveling member with move with described first traveling member first End, the second end being coupled to described fixed frame and the mid portion being operationally associated with described Lordosis support. Second flexible cable have be coupled to described second traveling member with the first end moved with described second traveling member, joined The second end receiving described fixed frame and the mid portion being operationally associated with described Lordosis support.In response to institute State the first traveling member and the translation of described second traveling member, the described mid portion of described first flexible cable and described The described mid portion of two flexible cables operates so that described Lordosis support is moved to described second from described primary importance Put.
In an embodiment of the support system for backrest, this system includes fixed frame and support member.Institute Stating the form that support member is profile pad, described profile pad is suitably mounted on described fixed frame.Described profile pad includes side To localized external silk and multiple transverse wire.First flexible cable is operably coupled to framework, and described first flexibility is drawn Rigging has the first end, the second end and drag-line body.Second flexible cable is operably coupled to framework, and described second soft Property drag-line has the first end, the second end and drag-line body.Actuator is constructed such that described first flexible cable and described second Flexible cable moves relative to described support member.When the actuating of described actuator, flexible with described first at described support member The contact between the described drag-line body of at least one in drag-line and described second flexible cable makes described support member from first Position moves to the second position.Described actuator is only coupled to the described lateral register outer filaments of described support member.
In an embodiment of the Lordosis support system of the backrest for having fixed frame, this system includes Being connected to the Lordosis support of fixed frame and for moving the motor of Lordosis support, Lordosis support can be from primary importance Move to the second position.Screwed part is operationally associated with motor, thus motor makes screwed part rotate about the axis.Advance Parts are operationally associated with screwed part, thus the rotation of screwed part makes traveling member translate along screwed part.Should System farther includes have the first end and the flexible cable of the second end.First end is coupled to traveling member with traveling member Move, and the second end is coupled to fixed frame, thus the translation in response to the traveling member of the rotation of screwed part makes waist Portion's support component moves to the second position from primary importance.
In an embodiment of the adjustable support system at the seat for having fixed frame, this adjustable support system System includes to move to from primary importance the support member of the second position relative to framework.Actuator is only coupled to described support Part, and described actuator is constructed such that described support member moves between described primary importance and the described second position.One Individual parts are operationally associated with actuator and can be moved by described actuator, and these parts have length.Flexibility is drawn Rigging has the first end and the second end.Described first end is coupled to described parts and advances with the described length along described parts, And described second end is coupled to described fixed frame, thus described actuator moves described parts and causes described flexible cable Described support member is made to move between described primary importance and the described second position.
By considering the detailed description and the accompanying drawings, the other side of the present invention will be clear from.
Brief Description Of Drawings
Fig. 1 is the perspective view of the vehicle seat including lumbar support system.
Fig. 2 is the perspective view of the lumbar support system of Fig. 1.
Fig. 3 is the decomposition view of the lumbar support system of Fig. 1.
Fig. 3 A is the decomposition view driving assembly of the lumbar support system of Fig. 1.
Fig. 4 is the cross sectional view along the line 4-4 of Fig. 1 of the lumbar support system in retracted position.
Fig. 5 is the cross sectional view along the line 4-4 of Fig. 1 of the lumbar support system in extended position.
Fig. 6 is the perspective view of the vehicle seat including another lumbar support system.
Fig. 7 is the perspective view of the lumbar support system of Fig. 6.
Fig. 8 is the decomposition view of the lumbar support mechanism of the lumbar support system of Fig. 6.
Fig. 9 is the cross sectional view along the line 9-9 of Fig. 6 of the lumbar support system in retracted position.
Figure 10 is the cross sectional view along the line 9-9 of Fig. 6 of the lumbar support system in extended position.
Figure 11 is the lumbar support system of Fig. 6 when a lumbar support mechanism extends and another lumbar support mechanism is retracted The side view of system.
Figure 12 is the lumbar support system of Fig. 6 when a lumbar support mechanism is retracted and another lumbar support mechanism extends The side view of system.
Figure 13 is the perspective view of another lumbar support system with single lumbar support mechanism.
Figure 14 is the fragmentary, perspective view of the vehicle seat including another lumbar support system.
Figure 15 is the perspective view of the lumbar support system of Figure 14.
Figure 16 is the decomposition view of the lumbar support mechanism of the lumbar support system of Figure 14.
Figure 17 is the partial front elevation view of the lumbar support system of Figure 14.
Figure 18 is the partial front elevation view of the lumbar support system of the Figure 14 in primary importance.
Figure 19 is the partial side view of the lumbar support system of the Figure 14 in primary importance.
Figure 20 is the partial front elevation view of the lumbar support system of Figure 14 in the second position.
Figure 21 is the partial side view of the lumbar support system of Figure 14 in the second position.
Figure 22 is the perspective view of another lumbar support system for vehicle seat.
Figure 23 is the decomposition view of the lumbar support system of Figure 22.
Figure 24 is the perspective view of the lumbar support system of the Figure 22 in extended position.
Figure 25 is the side view of the lumbar support system of the Figure 22 in retracted position.
Figure 26 is the side view of the lumbar support system of the Figure 22 in extended position.
Figure 27 is the perspective view of another lumbar support system for vehicle seat.
Figure 28 is the decomposition view of the lumbar support system of Figure 27.
Figure 29 is the perspective view of the lumbar support system of the Figure 27 in extending and dipping.
Figure 30 is the perspective view of the lumbar support system at the Figure 27 retracted and in raised position.
Figure 31 is the perspective view of the lumbar support system at the Figure 27 extended and in raised position.
Figure 32 is the decomposition view of another lumbar support system.
Figure 33 is the rear view of the lumbar support system of Figure 32.
Figure 34 is the schematic partial front perspective view of the lumbar support system of Figure 32.
Figure 35-37 is the perspective view of three other orientations of the lumbar support system of Figure 32.
Figure 38 is the rear view of another lumbar support system.
Figure 39 is the schematic partial front perspective view of the lumbar support system of Figure 38.
Figure 40-42 is the perspective view of three other orientations of the lumbar support system of Figure 38.
Detailed description of the invention
Before any embodiments of the invention are explained in detail, it should be appreciated that the application aspect present invention at it is not limited It is formed on structure and the details of layout of the component illustrated in the following description or shown in following drawing.The present invention can have There is other embodiments and put into practice in every way or implement.Also, it is understood that the wording being used herein and term It is to should not be regarded as to describe limiting.Here " comprise ", the use of " including " or " having " and modification thereof is intended to Contain items listed thereafter and equivalent thereof and other entry.And as here and in the following claims made Land used, term " on ", D score, " top ", " end ", "front", "rear" and other direction term be not intended to any concrete the taking of requirement To, but it is only used for the purpose described on the contrary.
Fig. 1 illustrates seat 10, and for the purpose of description subsequently, seat 10 can be appointing in the passenger carriage of vehicle What vehicle seat, but seat 10 might not be limited to vehicle application.Seat 10 generally includes seat bottom 14 and (shows with dotted line Go out) and it is respectively used to the backrest 18 horizontally and vertically supported of seat occupant.Backrest 18 can be at pivot 22 Fold relative to seat mount.It is upcoated the framework 26 that medicated cushion 30 (shown in broken lines) covers and provides structural integrity for backrest 18 Property, and framework 26 includes a pair vertical support member 34,38.Lumbar support system 100 is between vertical support member 34,38 Extend, and lumbar support system 100 is coupled to vertical support member 34,38, to be allowed for taking a seat the adjustable of tenant Joint lumbar support.
As shown in FIG. 1, lumbar support system 100 is included in and is centrally located between vertical support member 34,38 Lumbar support member or basket (basket) 110.Basket 110 present neighbouring with seat occupant the most flat before 114, should before 114 pressure surfaces being used as the lumbar region against tenant.Unshowned other medicated cushion, pad or other material are positioned at seat On the backrest 18 of position and in backrest 18 and above between 114 and seat occupant to increase comfort level.
Fig. 2 and 3 illustrates the lumbar support mentioned relative to proximal end 120 (being adjacent to drive assembly 230) and distal end portion 124 System 100.The upper and lower 130,134 of basket 110 is formed as the multiple apertures 138 including being separated by ribs 142, ribs 142 are generally connected to each other by the border 146 on after basket 110 150.The basket 110 central authorities between upper and lower 130,134 Portion 154 includes installed surface 158.Installed surface 158 supports opposed two group guiding piece 162, each group include upper rail 166 and under lead Rail 170, upper rail 166 and lower guideway 170 laterally extend along central part 154, and be respectively facing basket 110 proximal end and Distal end portion 120,124 is assembled to form drag-line passage 180, and the purpose of drag-line passage 180 will be described below.
A pair mounting pin 184 stretches out to receive in the installing hole 188 of rigidity main shaft guide rail 192 from installed surface 158 backward. Main shaft guide rail 192 includes one group of upper panel 196 and lower panel (not shown), and each fin is respectively provided with the hole 200 of centrally-located. When being positioned adjacent to installed surface 158, fin 196 engages opposed hook 204, and main shaft is led by hook 204 together with mounting pin 184 Rail 192 is aligned and fixed to basket 110.(figure is also seen with installed surface by the projection 208 on the either side of upper and lower fin 196 1) cooperation of the slit 212 in, it is provided that additional location and alignment.By the inner surface of main shaft guide rail 192 and block 216 it Between contact, maintain structural intergrity.
With reference to Fig. 2,3 and 3A, assembly or actuator 230 is driven to include: motor 234；There is the motor drive shaft of little gear 238； Housing 242；Worm gear 246；Cap 250 and drive shaft 254.Fastener 256 is utilized to be fixed to the motor 234 of housing 242 the most directly Stream reversible motor, but any kind of reversible motor of this application can be suitable for, and when necessary can be further It is changed size and power.The worm gear 246 operationally engaged with the little gear 238 of motor drive shaft allows to be applied to drive shaft 254 Power direction orthogonal change and from motor 234 output moment of torsion increase.Gear 246 is comprised in housing 242, Motor 234 is also connected to remaining and drives component members by housing 242.Splined actuating shaft 254 coordinates with worm gear 246, with behaviour Jointly rotate during work and transmit power.The cap 250 being attached to housing 242 provides, for worm gear 246 and drive shaft 254, the guarantor added Protect, and motor 234 is fixed to main shaft guide rail 192 by cap 250.
Screwed part or main shaft 260 are coupled to drive shaft 254, and cross over sizable part of main shaft guide rail 192.Main Axle 260 has nearside and distal thread end 264,268.As shown, proximal thread is right-hand thread, and distal thread is left Hands screw thread, but chirality can be reversed in alternative embodiments.Proximal thread end 264 is rotationally fixed to and is received in In the opening 272 limited in the end of drive shaft 254, thus when motor 234 activates, main shaft 260 revolves along with drive shaft 254 Turn.Traveling member or slide block (i.e. nearside slide block 280 and distally slide block 284) are fixed around each end of thread 264,268 of main shaft 260 Position.Each slide block 280,284 has: for the female thread body engaged with main shaft 260；And be formed as main shaft guide rail 192 A part opposed edge 300,304 coupling opposed groove 290,292,294,296.When main shaft rotates, contrary spiral shell Stricture of vagina spindle end 264,268 causes slide block together with the groove/edge interface of the slide block 280,284 with main shaft guide rail 192 280,284 along the contrary translational motion of main shaft 260.The buffer 308 being positioned adjacent to drive shaft 254 provides nearside sliding The limit of one end of the traveling of block 280.The second traveling set up by second buffer 312 adjacent with the stop part 316 of centrally-located The limit, and limit the moving range of nearside slide block 280.
Nearside and distally flexible cable 320,324 are coupled to nearside slide block 280 and distally slide block 284 respectively.Each Drag-line 320,324 includes the first end the 330, second end 334 and drag-line body 338.First end 330 has and is assemblied in each slide block 280, the internal adapter 344 to move of the basis of 284.The drag-line body 338 of each drag-line 320,324 is from the first end 330 extend, and drag-line body 338 limits interlude 350, and a part for interlude 350 is led to accordingly generally within each In road 180.Interlude 350 terminates at and is coupled to roll up end accessory 354 (such as, drag-line 324) or be alternately coupled to At second end 334 of hook accessory 356 (such as, drag-line 320).Volume end accessory 354 is adapted to engage with spring 362 such as torsionspring First end 358.Although being shown as being associated with distal end portion 124, but spring 362 can utilize distally and proximally drag-line 320, One or both operation in corresponding second end 334 of 324.Spring 362 includes that the second end 366, the second end 366 are configured to It is attached to the hook end 370 of hinge 374, and when first tenant sits down and in operation during strengthening tenant's comfort level All allow the limited deflection of lumbar support system 100.The hook accessory 356 of drag-line 320 is wound around the hook end of contrary hinge 374 The part of 370.
Hinge 374 is formed " living " hinge, in the side contrary with hook end 370, in upper and lower 130,134 this two At person, " living " hinge all adjoins basket 110.As shown, hinge 374 include first, second, and third pivotal point 380,384, 388, but fewer of more than three pivotal points also in the range of basis.At Fig. 2, as shown in 4 and 5, pivoting point 380, 384, the interference to motor 234 is prevented during the process of 388 travelings being positioned at basket 110.Hinge 374 and basket 110 are preferred The part that forms as one.Alternately, hinge 374 can be to be fastened to basket 110 in the manner known to persons skilled in the art Separate piece.The hook end 370 of hinge 374 is formed to be assemblied on connection element, this connection element in attachment silk 390 form, This attachment silk 390 is fixed to the corresponding vertically support member 34,38 (see Fig. 1) of framework 26.
In operation, use preferably with backrest 18 or the electric activation switches of seat bottom 14 adjacent positioned, seat accounts for According to person's actuation power actuator 230.With reference to Figure 4 and 5, when actuator 230 is activated, lumbar support system can contract completely Return is put in any position between (Fig. 4) and fully extended position (Fig. 5).When motor 234 is energized, connecing of worm gear 246 Conjunction makes drive shaft 254 rotate, thus rotating spindle 260 simultaneously.The basket 110 if lumbar support system 100 is started to retract, then Main shaft 260 rotates in a first direction.If lumbar support system 100 is started to extend basket 110, then main shaft 260 is on the contrary Second party rotate up.Starting in either direction is that user can utilize electric activation switches to select.Due to slide block 280, the interaction at the groove 290,292,294,296 of 284 and the edge 300,304 of main shaft guide rail 192, the rotation of main shaft 260 Turning makes slide block 280,284 translate, and in slide block 280,284 is in the upper traveling of proximal direction (120), and slide block 280,284 In another advance distal direction (124) is upper.
If tenant expects to extend basket 110 to provide more lumbar support, then the turning clockwise of main shaft 260 (from Distal direction 124 is observed) cause nearside slide block 280 to distally advance along main shaft 260 and distally slide block 284 is along main shaft 260 proximads are advanced, i.e. slide block 280,284 and their respective attachment drag-line 320,324 is closer to each other.Along with slide block 280, 284 assemble, and a part for the interlude 350 of each drag-line is slided in their respective channel 180, thus contacted basket 110. As in the diagram by shown in arrow 392, this contact creates the power against basket 110 guiding forward basket.When nearside slide block 280 During contact buffer 312, motor 234 stops, and this makes the rotation of main shaft 260 stop.Well known to a person skilled in the art at certain At individual progress point, other method to motor 234 power-off also is able to for being used together with lumbar support system 100.
At hook end 370, anchor to the hinge 374 being attached silk 390 promoted the movement of basket 110 by flexure, to run through traveling Scope ground provides smooth motion.As shown in FIG. 5, pivoting point 380,384,388 allow when fully extended hinge 374 around Motor 234 falls down.Each of which is secured to the attachment silk 390 of the corresponding vertically support member 30,34 of framework 26 when necessary Rotate along with the motion of lumbar support system 100.
If tenant expects that basket 110 retracts to reduce lumbar support amount, then rotating counterclockwise of main shaft 260 causes nearside Slide block 280 along main shaft 260 proximad advance and distally slide block 284 distally advance along main shaft 260, i.e. slide block 280, 284 and they respective attachment drag-line 320,324 separate.Along with slide block 280,284 moves away from out, from the interlude of drag-line 350 alleviate against the pressure of basket 110, and as in Figure 5 by shown in arrow 394, basket 110 is retracted backward as response.Work as cunning When block 280 contacts buffer 308, motor 234 stops as previously described.
During the process that basket 110 is advanced, from being retracted into extension and from extending to retraction, drag-line 320,324 keeps being set Put in essentially identical plane, and the angle [alpha] between the first end 330 and second end 334 of each drag-line 320,324 (see Fig. 4) keeps obtuse angle.
Fig. 6 illustrates the alternative version of the lumbar support system 400 for seat 410, front to describe it overall Feature.Seat 410 includes seat bottom 414 (shown in broken lines), foldable seat backrest 418 and has vertical support member 434, the framework 426 of 438.In profile pad or the lumbar support member of form of flexure pad 440 include laterally outside silk 444, in Centre silk 448 and the multiple transverse wire 452 extended between laterally outside silk 444.Framework 426 can farther include a pair reception Device 456, the pair of receptor 456 is for receiving the support member of head rest (not shown).As shown, lumbar support system 400 Including the lumbar support mechanism 500,502 being independently adjusted for a pair.
Fig. 7 illustrates lumbar support system 400, and Fig. 8 is shown specifically near relative to what proximal end 520 and distal end portion 524 were mentioned The component of side scalable lumbar support mechanism 500.
Drive assembly or actuator 530 basic as shown in figure 3 a, and as wrapped in the front system description about Fig. 1 Include: the motor 534 of interaction；There is the motor drive shaft of little gear 538；Housing 542；Worm gear 546；Cap 550 and drive shaft 554. Screwed part or main shaft 560 are coupled to drive shaft 554, and cross over sizable part of main shaft guide rail 562.Main shaft 560 has There are right hand proximal thread and left hand distal thread.Proximal thread end 564 is rotationally fixed to and receives by drive shaft 554 In the opening 572 that end limits, and when the actuating of motor 534, proximal thread end 564 rotates along with drive shaft 554.Slide block (i.e. nearside slide block 580 and distally slide block 584) positions rotating around each end of thread 564,568 of main shaft 560, each slide block There is the female thread body for engaging with main shaft 560.Opposed groove 590,592,594,596 be formed as main shaft guide rail 562 A part opposed edge 600,604 coupling, to cause the contrary translational motion of slide block 580,584 during operation.With The buffer 608 that drive shaft 554 is positioned adjacent to provides the first travel limit of nearside slide block 580, and with centrally-located The second buffer 612 that stop part 616 is adjacent provides the second travel limit, and these limit limit the mobile model of nearside slide block 580 Enclose.
Nearside and distally drag-line 620,624 are coupled to nearside slide block 580 and distally slide block 584 respectively.Each drag-line 620,624 include the first end the 630, second end 634 and drag-line body 638.First end 630 of each drag-line 620,624 includes It is coupled to the body of corresponding slide block 580,584 with the adapter 644 moved with it.The drag-line of each drag-line 620,624 Body extends from the first end 630, and drag-line body limits interlude 650.As shown in FIG. 8, nearside lumbar support mechanism The interlude 650 of the distally drag-line 624 of 500 is longer than the interlude 650 of the nearside drag-line 620 of same lumbar support mechanism.Drag-line This longer interlude 650 of 624 is positioned at rigid sleeve 652, and this rigid sleeve 652 has bigger than the diameter of drag-line 624 Internal diameter, to allow drag-line 624 moving freely in rigid sleeve 652.Nearside and distally drag-line 620,624 are in each Between the part of section 650 through clip 660 and being comprised by this clip 660, clip 660 by outer filaments 444 by nearside and distally Drag-line 620,624 and thus lumbar support mechanism 500 is connected to bend pad 440.Each interlude 650 terminates at the second end At 634, the second end 634 is coupled to hook accessory 668, and hook accessory 668 self is fixed to the corresponding vertically supporting part of framework 426 Part 434,438.With reference to Fig. 7, distally lumbar support mechanism 502 is the mirror image of nearside lumbar support mechanism 500.
Seat occupant can select to activate nearside lumbar support mechanism 500 or distally waist in an identical manner alternatively Supporting mechanism 502.Alternately, seat occupant can utilize identical actuation of the switch nearside and distally mechanism 500, Both 502.Hereinafter operation description will focus on supporting mechanism 500, but is equally applicable to supporting mechanism 502.
Use preferably with backrest 418 or the electric activation switches of seat bottom 414 adjacent positioned, seat occupant start Actuator 530 for nearside lumbar support mechanism 500.With reference to Fig. 9 and Figure 10, when actuator 530 is activated, mechanism 500 Can be in any position between fully retracted position (Fig. 9) and fully extended position (Figure 10).Motor 534 is being energized Time, the joint of worm gear 546 makes drive shaft 554 rotate, thus rotating spindle 560 simultaneously.If lumbar support mechanism 500 is started With the support i.e. providing less of retracting, then main shaft 560 rotates in a first direction.If lumbar support mechanism 500 started with Extend and i.e. provide more support, then main shaft 560 rotates in the opposite direction.Starting in either direction is that user can Electric activation switches is utilized to select.As in the fig. 1 embodiment, the rotation of main shaft 560 makes slide block 580,584 translate, slide block 580, the groove 590,592,594,596 of 584 interacts with the edge 600,604 of main shaft guide rail 562, thus a slide block 580,584 in the upper traveling of proximal direction (520), and another slide block 580,584 is in the upper traveling of distal direction (524).
In order to extend lumbar support mechanism 500, seat occupant starts this mechanism with the main shaft 560 that turns clockwise (from far Side is observed to 524), this causes nearside slide block 580 to distally advance along main shaft 560 and distally slide block 584 is along main shaft 560 proximads are advanced, i.e. slide block 580,584 and their respective attachment drag-line 620,624 is closer to each other.Along with slide block 580, 584 assemble, and interlude 650 contacts laterally outside silk 444, thus force the region crossed over by mechanism 500 of flexure pad 440 to Before, as in fig .9 by shown in arrow 692.When nearside slide block 580 contacts buffer 612, motor 534 stops, and this makes main shaft The rotation of 560 stops.As shown in figure 9 and in figure 10, hook end 668 allows the connection around vertical support member 434,438 to rotate, To allow the smooth movement of lumbar support mechanism 500 when lumbar support mechanism 500 is advanced forward.Although it is not shown, with In drag-line 620,624 one or the spring of both coupled in series can allow for limited deflection and provide to tenant " give way (give) " to strengthen the comfort level of this device.
In order to lumbar support mechanism 500 of retracting is to reduce lumbar support amount, seat occupant starter mechanism 500 is with counterclockwise Rotate main shaft 560, this cause nearside slide block 580 proximad advance and distally slide block 584 distally advance, i.e. slide block 580, 584 and they respective attachment drag-line 620,624 separate.Along with slide block 580,584 becomes to be spaced further apart, from drag-line 620, The interlude 650 of 624 alleviates against the pressure of laterally outside silk 444, and as response, flexure pad 440 is retracted backward, as By shown in arrow 694 in Figure 10.As described earlier, when nearside slide block 580 contacts buffer 608, motor 534 stops.
Lumbar support mechanism 500,502 is operating independently, and both can be by operation by they of completeness Scope.Such as, lumbar support mechanism 500,502 both of which can extend, and both of which can be retracted, or one can Fully or partly retract when another extends completely or partially.With reference to Figure 11, nearside lumbar support mechanism 500 In fully extended position, simultaneously distally lumbar support mechanism 502 in fully retracted position (in order to observe, the horse of mechanism 502 Reach and do not exist).As shown in Figure 12, nearside lumbar support mechanism 500 in fully retracted position, distally lumbar support simultaneously Mechanism 502 is in fully extended position.Between the scope illustrated in figs. 11 and 12, any degree of mechanism 500,502 only Vertical extension/retraction is all possible.By separate for mechanism 500,502 vertical distance D1It is about 50mm, but for concrete application For, it is possible to there is greater or lesser amplitude.
As lumbar support system 100, during the process that profile pad 440 is advanced, from being retracted into extension and from prolonging Reaching retraction, drag-line 620,624 keeps being arranged in essentially identical plane, and at the of each drag-line 620,624 Angle beta (such as seeing Fig. 9) between one end 630 and the second end 634 keeps obtuse angle.
In some applications, by the operation of mechanism the most as described earlier, as shown in Figure 13, single waist props up Support mechanism such as mechanism 500 can be used individually.
Figure 14 illustrates the alternative version of the lumbar support system 700 for seat, front to describe it the most special Levy.Seat includes the framework 726 with vertical support member 734,738.In profile pad or the waist of form of flexure pad 740 props up Support element includes laterally outside silk 744, central authorities' silk 748 and the multiple transverse wire 752 extended between laterally outside silk 744.Waist Portion's support system 700 includes can the lumbar support mechanism 800 of independent regulation.
Figure 15 illustrates lumbar support system 700, and Figure 16 is shown specifically and mentions relative to proximal end 820 and distal end portion 824 The component of scalable lumbar support mechanism 800.
Drive assembly or actuator 830 basic as shown in figure 3 a, and as wrapped in the front system description about Fig. 1 Include: the motor 834 of interaction；There is the motor drive shaft of little gear 838；Housing 842；Worm gear 846；Cap 850 and drive shaft 854. Screwed part or main shaft 860 are coupled to drive shaft 854, and cross over sizable part of main shaft guide rail 862.Main shaft 860 has There are right hand proximal thread and left hand distal thread.Proximal thread end 864 is rotationally fixed to and receives by drive shaft 854 In the opening 872 that end limits, and when the actuating of motor 834, proximal thread end 864 rotates along with drive shaft 854.Slide block (i.e. nearside slide block 880 and distally slide block 884) positions rotating around each end of thread 864,868 of main shaft 860, each slide block There is the female thread body for engaging with main shaft 860.Opposed groove 890,892,894,896 be formed as main shaft guide rail 862 A part opposed edge 900,904 coupling, to cause the contrary translational motion of slide block 880,884 during operation.With The buffer 908 that drive shaft 854 is positioned adjacent to provides the first travel limit of nearside slide block 880, and with centrally-located The buffer 912 that stop part 916 is adjacent provides the second travel limit, and these limit limit the moving range of nearside slide block 880.
First drag-line 920 is coupled to nearside slide block 880, and the second drag-line 924 is coupled to distally slide block 884.Often One drag-line 920,924 includes the first end the 930, second end 934 and drag-line body 938.Adapter 944 is reliably by each The body of slide block 880,884 is connected to each corresponding drag-line body 938, thus attached at adapter 944 and adapter 944 Connect and between drag-line 938, there is not any relative motion (also seeing Figure 14).The drag-line body 938 of each drag-line 920,924 is from One end 930 extends to the second end 934, and is divided on the side of corresponding adapter 944 in first terminated Between section 950 and on the opposite side of this corresponding adapter 944 terminate the second interlude 951 (see Figure 14).Each drag-line A part for body 938 is operably positioned in the first and second sleeves 952,954, and the first and second sleeves 952,954 have The internal diameter bigger than the diameter of drag-line body 938, to allow each drag-line freely to move in the first and second sleeves 952,954 Dynamic.The drag-line body 938 of each drag-line 920,924 near each end 930,934, partially pass through clip 960 And comprised by this clip 960, clip 960 passes through outer filaments 744 by the first and second drag-lines 920,924 and thus by lumbar support Mechanism 800 is connected to bend pad 740.As indicated, the connector 962 of clip 960 is located so that: silk is being basically parallel to main shaft The side of 860 is upwardly into clip 960, but the connector 962 of one or more clip 960 can be alternately towards main shaft 860 are at an angle of, to be allowed for the more direct path of drag-line 920,924.First and second ends 930,934 each joined Receiving hook accessory 968, this hook accessory 968 self is fixed to the corresponding vertically support member 734,738 of framework 726.
With reference to Figure 14 and 16, each sleeve 952 includes outer end 970 and inner 974.Each sleeve 954 includes outer end 978 and inner 982.The outer end 970,978 of each sleeve is connected to each corresponding clip 960.The inner of sleeve 952 974 each of which are assembled and are fixed in the recess 984 of lateral accessory 986.The inner 982 each of which of sleeve 954 is filled Join and be fixed on central authorities accessory 990 recess 988 in.Each accessory 986,990 includes the top and bottom limit being assemblied in guide rail 862 Upper and lower passage 992 along 994.
Use preferably with backrest or the electric activation switches of seat bottom adjacent positioned, seat occupant starts for waist The actuator 830 of portion's supporting mechanism 800.With reference to Figure 17-21, when actuator 830 is activated, mechanism 800 can be arranged on In primary importance with provide in upper lumbar region than under the many support (Figure 18-19) in lumbar region, or be arranged on second In position with provide in lower lumbar region than on the many support (Figure 20-21) in lumbar region.
When being energized motor 834, the joint of worm gear 846 makes drive shaft 854 rotate (see Fig. 3 A), thus rotates master simultaneously Axle 860.If lumbar support mechanism 800 is started to primary importance, then main shaft 860 rotates in a first direction.If waist Supporting mechanism 800 is started to the second position, then main shaft 860 rotates in the opposite direction.Starting in either direction is to make User can utilize electric activation switches to select.Embodiment before as, the rotation of main shaft 860 makes slide block 880,884 flat Moving, the groove 890,892,894,896 of slide block 880,884 interacts with the edge 900,904 of main shaft guide rail 862, thus one Individual slide block 880,884 is in the upper traveling of proximal direction (820), and another slide block 880,884 is in the upper traveling of distal direction (824).
With reference to Figure 17, waist mechanism 800 shown in centre position between the first position and the second position.In order to by waist Portion's supporting mechanism 800 moves to the primary importance of Figure 18 and 19, and seat occupant starts this mechanism with the main shaft 860 that turns clockwise (distally direction 824 is observed), this cause nearside slide block 880 to distally advance along main shaft 860 and distally slide block 884 along Main shaft 860 proximad is advanced, i.e. slide block 880,884 is closer to each other.Along with slide block 880,884 is assembled with corresponding adapter 944, Second interlude 951 of drag-line 920,924 in the way of being similar to the description such as Fig. 6 at corresponding clip 960 around laterally outside Silk 744 is tensioned.Force the portion crossed over by mechanism 800 of flexure pad 740 in upper lumbar region the most as shown in Figure 19 Divide forward.Meanwhile, the first interlude 950 of drag-line 920,924 relaxes, thus causes seat occupant to compare in upper lumbar region By bigger support in lower lumbar region.When nearside slide block 880 contacts buffer 912, motor 834 stops, and this makes The rotation of main shaft 860 stops.
In order to lumbar support mechanism 800 being moved to the second position of Figure 20 and 21, seat occupant start this mechanism with Rotating main shaft 860 (distally direction 824 is observed) counterclockwise, this causes nearside slide block 880 to advance also along main shaft 860 proximad And distally slide block 884 distally advances along main shaft 860, i.e. slide block 880,884 separates.Along with slide block 880,884 is with corresponding Adapter 944 deviates, and the first interlude 950 of drag-line 920,924 is to be similar in the way of Fig. 6 etc. describes at corresponding clip Around laterally outside silk 744 tensioning at 960.Force the most as shown in Figure 21 in lower lumbar region flexure pad 740 by machine The part that structure 800 is crossed over is forward.Meanwhile, the second interlude 951 of drag-line 920,924 relaxes, thus causes seat occupant to exist Than in upper lumbar region by bigger support in lower lumbar region.When nearside slide block 880 contacts buffer 908, motor 834 stop.
As shown in Figure 19 and 21, by upper lumbar region from lower lumbar region separate vertical distance D2It is about 70mm, But can have higher or lower amplitude for concrete application.In some constructions, lumbar support mechanism 800 is by structure Cause only to provide at range limit shown in Figure 19 and 21 and support.In other constructs, mechanism 800 is operable to and at figure Any position in the range of shown in 19 and 21 provides and supports.
Figure 22 illustrates another lumbar support system 1000 for vehicle seat, front to describe it the most special Levy.System 1000 includes separate frame portion 1010, and this frame section 1010 can be integrated with seat, and frame section 1010 has perpendicular Straight support member 1020,1024, vertical support member 1020,1024 supports for installing the flexible waist of the form of 1040 in basket Element.Basket 1040 is included in the elastomeric connector 1044 of the vicinity of top edge 1048, to promote that a part for basket 1040 is along perpendicular Straight support member 1020,1024 is advanced.As indicated, lumbar support system 1000 includes scalable lumbar support mechanism 1100.
Referring also to Figure 23, the driving assembly similar with shown in Fig. 3 A or actuator 1130 include motor 1134, housing 1142, (not shown) arranged by bracket 1144 and worm gear, and this worm gear is arranged and is operable to for revolving orthogonally with motor drive shaft (not shown) Turn screwed part or main shaft 1150, i.e. main shaft 1150 to be orientated in generally vertical direction relative to seat.Have for main shaft The traveling member of the 1150 female thread bodies engaged or slide block 1160 position around the screw thread of main shaft 1150.
Rigid support silk 1170 includes: a pair hook 1174,1176, and the pair of hook 1174,1176 is used for and basket 1040 Lower base member 1052 engages；And rail portion, this rail portion has the closed slide 1180,1184 of the first and second connections.Support Silk 1170 forms ring 1190 further between guide rail 1184 and hook 1176.Have and be suitably sized to accommodate guide rail 1180,1184 The extremity piece 1200 of semi-circular grooves 1204 includes the guide portion 1210 extended back from the first face 1214.Guide portion 1210 is additionally Rest upon the upper end 1220 of main shaft 1150.Supporting wire 1170 is operably linked to drive assembly 1130 via bracket 1144.Slide block The opposed channel 1230 of 1160 is mated with the guide rail 1180,1184 of supporting wire 1170, so that slide block 1160 energy during operation Enough translational motions.First buffer 1234 adjacent with bracket 1144 provides the first travel limit of slide block 1160, and with draw The second buffer 1238 leading portion 1210 adjacent provides the second travel limit, and these limit limit the moving range of slide block 1160.
Drag-line 1250 includes the first end the 1254, second end 1258 and drag-line body 1260.First end 1254 and adapter 1264 are integrally formed or are fixed to this adapter 1264, and adapter 1264 is connected to the body of slide block 1160, with slide block 1160 move.Drag-line body 1260 by the guide portion 1210 top edge 1048 towards basket 1040 and passes through logical from the first end 1254 Road 1270 extends, and this path 1270 is by the bracket component 1274 of generally laterally centrally-located near the edge 1048 of basket 1040 Limit.Path 1270 is formed with arch drag-line contact site 1278, thus drag-line 1250 rotates about 180 ° and along lower base member Advance downwards in the direction of 1052, i.e. angle between the first and second ends 1254,1258 is about 0 °, but can be with scope from about 0 ° to about 15 °.Second end 1258 of drag-line 1250 is firmly connected to eyelet 1282, receives spring by this eyelet 1282 First end 1286 of 1290, spring 1290 is connected to ring 1190 by the second end 1294 of spring 1290.
As front for other embodiments discussion, use preferably with backrest or the electric actuation of seat bottom adjacent positioned Switch, seat occupant starts the actuator 1130 for lumbar support mechanism 1100.With reference to Figure 22 and 24 (also 25 and 26), When actuator 1130 is activated, mechanism 1100 can be in any position being fully retracted between (Figure 22) and fully extended (Figure 24) In putting.When being energized motor 1134, the joint of worm gear makes drive shaft rotate rotating spindle 1150 the most simultaneously.If lumbar support Mechanism 1100 is the support i.e. providing less of retracting by starting, then main shaft 1150 rotates in a first direction.If lumbar support Mechanism 1100 is started i.e. provides more support for extending, then main shaft 1150 rotates in a second opposite direction.Arbitrary Starting on direction is that user can utilize electric activation switches to select.The rotation of main shaft 1150 makes slide block 1160 translate, sliding The passage 1204 of block 1160 translates along guide rail 1180,1184.
In order to extend lumbar support mechanism 1100, seat occupant starter mechanism is to rotate main shaft in a second direction 1150, this causes slide block 1160 to move down towards base member 1052.Along with slide block 1160 moves, drag-line body 1260 contact The arch portion 1278 of frame 1274.By drag-line body 1260 effect the first and second ends 1254,1258 at drag-line 1250 it Between tension force on support 1274, apply downward force.Because support 1274 is fixedly secured to basket 1040 (specifically in top edge The vicinity of 1048), so when drag-line 1250 is fixed to base member 1052 indirectly by supporting wire 1170 simultaneously, by elasticity even The top edge 1048 connecing the basket 1040 that device 1044 promotes slides along the vertical support member 1020,1024 of frame section 1010, from And extend forward the waist contact area of basket 1040, to support the lumbar region of seat occupant as shown in Figure 24.Work as cunning When block 1160 contacts buffer 1234, motor 1134 stops, and this makes the rotation of main shaft 1150 stop.
In order to lumbar support mechanism 1100 of retracting is to reduce lumbar support amount, seat occupant actuating mechanism 1100 is with One side rotates up main shaft 1150, and this causes slide block 1160 to move up towards top edge 1048.Along with slide block 1160 such as this journey Entering, from drag-line body 1260, the pressure against arch portion 1278 alleviates, and basket 1040 is retracted, as further backward as response Shown in Figure 25 and 26, this makes top edge 1048 along vertical support member 1020,1024 upward.As retouched front Stating, when slide block 1160 contacts buffer 1238, motor 1134 stops.
In some applications, support 1274 is substituted by strut rail (not shown), and this strut rail crosses at least the one of top edge 1048 Part, strut rail is preferably in the form of the second rigid filaments, and this second rigid filaments presents the connection of the second end 1294 for spring 1290 Connect surface.Utilize the drag-line 1250 shorter with description than shown in Figure 22-26, at driven motor 1134 to rotate main shaft 1150 also During translator slider 1160, shorter drag-line 1250 acts on support 1274 by drag-line body 1260 the most as previously described, But acted on by spring 1290 (that is, the second end 1294) directly to strut rail and therefore to apply to the top edge 1048 of basket 1040 Power, in order to identically extend and retract basket 1040.In other words, carbine 1294 is attached to strut rail rather than supporting wire 1170 On ring 1190.Alternately, in some applications, the second end 1258 of drag-line directly (is not having spring during operation In the case of 1290) in top edge 1048, apply downward force.
Figure 27 illustrates another lumbar support for vehicle seat with the feature similar with the feature of system 1000 System 1300.For the sake of clarity, system 1300 will renumber.System 1300 includes separate frame portion 1310, this frame section 1310 have the vertical support member 1320,1324 for installing flexible waist support basket 1340.Basket 1340 is included in top edge The elastomeric connector 1344 of the vicinity of 1348 and the elastomeric connector 1350,1351 near lower base member 1352, to promote Basket 1340 is along the traveling of vertical support member 1320,1324.As indicated, lumbar support system 1300 includes that scalable waist props up Support mechanism 1400.
Referring also to Figure 28, a pair driving assembly similar with the actuator 1130 shown in Figure 22-23 or actuator 1430, 1432 each include that (not shown) arranged by motor 1434, housing 1442, bracket 1444 and worm gear, this turbine is arranged and is operable to For rotating screwed part or main shaft 1450,1452 orthogonally with corresponding motor drive shaft (not shown), i.e. main shaft 1450, 1452 are orientated in generally vertical direction relative to seat.There is the slide block for the female thread body engaged with main shaft 1450 1460 around the screw thread location of main shaft 1450.There is the block 1462 of female thread body for engaging with main shaft 1452 around main shaft 1452 Screw thread location.
Rigid support silk 1470 includes: for a pair hook 1474,1476 engaged with lower base member 1352；And have first The first rail portion with the second closed slide 1480,1484 connected；And there is the closed slide of the first and second connections 1486, second rail portion of 1488.There is size be respectively adapted to accommodate guide rail 1180,1184 and 1186, the semi-circular grooves of 1188 First and second extremity pieces 1500 of groove 1504 each include the guide portion 1510 that extends back.The guiding of each extremity piece 1500 Portion 1510 additionally rests upon the upper end 1520,1522 of corresponding main shaft 1450,1452.Supporting wire 1470 can be grasped via bracket 1444 It is connected to drive assembly 1430,1432 with making.
The opposed channel 1530 of slide block 1460 is mated with the guide rail 1480,1484 of supporting wire 1470, to draw during operation Play the translational motion of slide block 1460.First buffer 1534 adjacent with bracket 1444 provides the first traveling pole of slide block 1460 Limit, and second buffer 1538 adjacent with the guide portion 1510 of the extremity piece 1500 being associated provides the second travel limit, this A little limit limit the moving range of slide block 1460.
The opposed channel 1540 of block 1462 is mated with the guide rail 1486,1488 of supporting wire 1470.Block 1462 includes through block The aperture 1542 of 1462, this aperture 1542 receives strut rail 1544, and this strut rail 1544 is coupled to vertical support member 1320,1324 And extend between vertical support member 1320,1324.With carrying 1546, strut rail 1544 is fixed to support member 1320,1324. Therefore, block 1462 is fixed also relative to frame section 1310.As will be further detailed, the first buffer 1548 and the second buffer 1549 determine the travel limit being associated with block 1462.
Drag-line 1550 includes the first end the 1554, second end 1558 and drag-line body 1560.First end 1554 and adapter 1564 are integrally formed or are fixed to this adapter 1564, and adapter 1564 is connected to the body of slide block 1460 with slide block 1460 move.Drag-line body 1560 from the first end 1554 by the guide portion 1510 of the extremity piece 1500 that is associated and towards basket 1340 Top edge 1348 extends.Drag-line body 1560 is through path 1570, and this path 1570 is by near the edge 1348 of basket 1340 Generally laterally the bracket component 1574 of centrally-located limits.Path 1570 is formed with arch drag-line contact site 1578, thus drag-line Advance downwards, i.e. between the first and second ends 1554,1558 in 1550 rotations about 180 ° the direction along lower base member 1352 Angle be about 0 °, but can be with scope from about 0 ° to about 15 °.Second end 1558 of drag-line 1550 is firmly connected to hook 1582, the aperture 1586 of the extremity piece 1500 by contacting with main shaft 1452 receives this hook 1582.
As front for other embodiments discussion, use preferably with backrest or the electric actuation of seat bottom adjacent positioned Switch, seat occupant starts the actuator 1430,1432 for lumbar support mechanism 1400.With reference to Figure 27 and 29, work as actuating When device 1430 is activated, mechanism 1400 can be in any position being fully retracted between (Figure 27) and fully extended (Figure 29). When being energized the motor 1434 of actuator 1430, the joint of worm gear makes drive shaft rotate and rotating spindle 1450 simultaneously.If Lumbar support mechanism 1400 is the support i.e. providing less of retracting by starting, then main shaft 1450 rotates in a first direction.If Lumbar support mechanism 1400 is started i.e. provides more support for extending, then main shaft 1450 revolves in a second opposite direction Turn.Starting in either direction is that user can utilize electric activation switches to select.The rotation of main shaft 1450 makes slide block 1460 translations, the passage 1504 of slide block 1460 interacts with guide rail 1480,1484.
In order to extend lumbar support mechanism 1400, seat occupant starter mechanism is to rotate main shaft in a second direction 1450, this causes slide block 1460 to move down towards base member 1352.Along with slide block 1460 moves, drag-line body 1460 contact The arch portion 1578 of frame 1574.By drag-line body 1560 effect the first and second ends 1554,1558 at drag-line 1550 it Between tension force on support 1574, apply downward force.Because support 1574 is fixedly secured to basket 1340 (specifically in top edge The vicinity of 1348), so when drag-line 1550 is fixed to base member 1352 indirectly by supporting wire 1470 simultaneously, by elasticity The top edge 1348 of the basket 1340 that adapter 1344 promotes slides along the vertical support member 1320,1324 of frame section 1310, Thus extend forward the waist contact area of basket 1340, to support the lumbar region of seat occupant as shown in Figure 29.When When slide block 1460 contacts buffer 1534, the motor 1434 of actuator 1430 stops, and this makes the rotation of main shaft 1450 stop.
In order to lumbar support mechanism 1400 of retracting is to reduce lumbar support amount, seat occupant starter mechanism 1400 is with One side rotates up main shaft 1450, and this causes slide block 1460 to move up towards top edge 1348.Along with slide block 1460 such as this journey Entering, from drag-line body 1560, the pressure against arch portion 1578 alleviates, and basket 1340 is retracted backward as response, and this makes top Edge 1348 is along vertical support member 1320,1324 upward.As described earlier, buffer 1538 is contacted when slide block 1460 Time, the motor 1434 of actuator 1430 stops.
With reference to Figure 27 and 30, supporting mechanism 1400 and basket 1340 can be vertically adjusted, to allow to position as institute's phase The seat occupant motility of basket 1340.When actuator 1432 is activated, mechanism 1400 can completely reduce (Figure 27) and Raise completely in any position between (Figure 30).When being energized the motor 1434 of actuator 1432, the joint of worm gear makes to drive Moving axis rotates rotating spindle 1452 the most simultaneously.If lumbar support mechanism 1400 is started as reducing, then main shaft 1452 is first Side rotates up.If lumbar support mechanism 1400 is started as raising, then main shaft 1452 rotates in a second opposite direction. Starting in either direction is that user can utilize electric activation switches to select.The rotation of main shaft 1452 makes mechanism 1400 He Basket 1340 translates relative to fixed block 1462, and the passage 1540 of fixed block 1462 interacts with guide rail 1486,1488.
In order to raise lumbar support mechanism 1400 and support member 1340, seat occupant starter mechanism is with in a second direction Rotate main shaft 1452.The screw thread of main shaft 1452 causes whole with the interaction of the screw thread of the block 1462 being fixed to frame section 1310 Mechanism 1400 and basket 1340 translate up relative to block 1462.When the actuating without other actuator 1430, at drag-line 1550 When interior tension force is maintained, the extent of basket 1340 keeps constant.Adapter 1344,1350,1351 operationally contacts perpendicular Straight support member 1320,1324, to allow and to guide the moving upward with basket 1340 vertically oriented as institute's phase of basket 1340 Waist contact area.When buffer 1548 contact block 1462, the motor 1434 of actuator 1432 stops, and this makes main shaft 1452 Rotation stop.In order to reduce lumbar support mechanism 1400, seat occupant starter mechanism 1400 is to rotate in a first direction Main shaft 1452, this causes mechanism 1400 and basket 1340 relative to block 1462 pan-down.As described earlier, connect when buffer 1549 During contact block 1462, the motor 1434 of actuator 1432 stops.
With reference to Figure 30 and 31, as previously described by the actuating of actuator 1430, basket 1340 can fully retract and Extend in by buffer 1548,1549 determine vertical in the range of any height.Do not require dividing of actuator 1430,1432 The operation opened, thus vertically regulate and retract/extend and can complete simultaneously.
Figure 32-34 illustrates the lumbar support system 2100 mentioned relative to proximal end 2120 and distal end portion 2124.Basket 2110 Upper and lower 2130,2134 be formed as multiple apertures 2138 of including being separated by ribs 2142, ribs 2142 is usual It is connected to each other by the border 2146 on after basket 2,110 2150.The basket 2110 central authorities between upper and lower 2130,2134 Portion 2154 includes installed surface 2158.Installed surface 2158 supports centre guide 2162 and opposed drag-line passage 2180, and its purpose will It is described below.
Main shaft guide rail 2192 includes the one group of upper and lower fin 2196 being generally perpendicular to installed surface 2158 orientation, installed surface 2158 include multiple corresponding slit 2212.As shown in Figure 34, fin 2196 and slit 2212 location make: assembling Time, fin 2196 is stretched out by slit 2212, and then up or rotate down or bend, with by main shaft guide rail 2192 forever It is fixed to basket 2110 for a long time.Lumbar support system 2100 does not use other fastener any, bracket or other hardware to be led by main shaft Rail 2192 is fixed to basket 2110.
Assembly or actuator 2230 is driven to include all similar with actuator 230 motor 2234, housing 2242 and bag Cap 2250 containing worm gear and drive shaft.Fastener 2256 is utilized to be fixed to the motor 2234 preferably DC reversible horse of housing 2242 Reach, but any kind of reversible motor of application can be suitable for, and size can be changed when necessary further And power.Drive shaft (not shown) mates with worm gear, the most jointly to rotate and to transmit power.Drive shaft ends to connect Receive in device 2258.Motor 2234 is fixed to main shaft guide rail 2192 by cap 2250.
Screwed part or main shaft 2260 are coupled to drive shaft, and cross over a part for main shaft guide rail 2192.Main shaft 2260 There is nearside and distal thread end 2264,2268.As indicated, proximal thread is right-hand thread, and distal thread is left hand spiral shell Stricture of vagina, but chirality can be reversed in alternative embodiments.Proximal thread end 2264 is received in the opening of receptor 2258 In 2272, and proximal thread end 2264 is by fixing (such as, by crimping) to this opening 2272 rotatably, thus at motor During 2234 actuating, main shaft 2260 is along with drive shaft rotation.Traveling member or slide block (i.e. nearside slide block 2280 and distally slide block 2284) each end of thread 2264,2268 around main shaft 2260 positions.Each slide block 2280,2284 has: be used for and main shaft The 2260 female thread bodies engaged；Respectively with the opposed edge 2300,2304 of the part being formed as main shaft guide rail 2192 The opposed groove 2290,2292,2294,2296 joined.When main shaft rotates, the spindle end 2264,2268 of opposite threads is together with cunning Block 2280,2284 cause slide block 2280,2284 along main shaft 2260 together with the groove/edge interface of main shaft guide rail 2192 Contrary translational motion.
The buffer 2308 being positioned adjacent to receptor 2258 provides the limit of one end of the traveling of nearside slide block 2280. The spacer 2312 with proximal end 2314 and distal end portion 2316 positions at the spaced winding main shaft 2260 of slide block 2280,2284.Specifically Ground, both buffer 2308 and spacer 2312 include the most smooth the most tapped inner surface, and are configured to leading Slide or " floating " on axle 2260, i.e. as will be further explained, buffer 2308 and spacer 2312 neither screw thread Engage nearside or the distal thread of main shaft 2260.The length of spacer 2312 can depend on specifically applying and changing, and During system assembles, concrete length can be color-coded by reference.The second travel limit set up by spacer 2312, and limits The moving range of fixed slider 2280,2284.
Nearside and distally flexible cable 2320,2324 are coupled to nearside slide block 2280 and distally slide block 2284 respectively.Often One drag-line 2320,2324 includes the first end the 2330, second end 2334 and drag-line body 2338.First end 2330 has and is assembled The internal adapter 2344 to move with slide block 2280,2284 of basis at corresponding slide block 2280,2284.Each drag-line 2320, the drag-line body 2338 of 2324 extends from the first end 2330 and limits interlude 2350, a part of position of interlude 2350 In each corresponding passage 2180.Interlude 2350 ratio of the distally drag-line 2324 of nearside lumbar support mechanism 2100 is same The interlude 2350 of the nearside drag-line 2320 of lumbar support mechanism is long.In certain embodiments, this of drag-line 2324 is longer Interlude 2350 is positioned at rigid sleeve (not shown), and this rigid sleeve has the internal diameter bigger than the diameter of drag-line 2324, to permit Permitted drag-line 2324 moving freely in rigid sleeve.The interlude 2350 of each drag-line 2320,2324 terminates at and is connected to At second end 2334 of hook accessory 2356.
With reference to Figure 33, hook accessory 2356 each be constructed to pass through the hole 2360 of hinge 2374, and be fixed to hinge One end 2370 of chain 2374.Hinge 2374 is " living " hinge, in the side contrary with this end 2370, in upper and lower 2130, Locating both 2134, " living " hinge all adjoins basket 2110.As shown, hinge 2374 includes multiple pivotal point, the plurality of pivot Point is positioned at pre-anti-interference motor 2234 during the process that basket 2110 is advanced.Hinge 2374 and basket 2110 are preferably formed to Integral piece.Alternately, hinge 2374 can be the separate piece being fixed to basket 2110 in the manner known to persons skilled in the art. Every one end 2370 of hinge 2374 includes that pair of flexible snap hook 2380, the pair of flexible card clasp 2380 are configured to connect A part to the corresponding vertically support member 34,38 of framework 26 (such as seeing Fig. 1).Although it is not shown, and drag-line 2320, the spring of the one or both coupled in series in 2324 can allow for limited deflection, and provide to tenant and " allow Step (give) " to strengthen the comfort level of this device.
The basket 2110 that is installed to by main shaft guide rail 2192 in front description is used as the aforementioned components of lumbar support system 2100 (removing basket 2110) is fastened to the sole mode of vehicle.
In operation, seat occupant uses electric activation switches to start electric actuator 2230.Operation is similar to waist and props up Support system 100 ground (i.e. between fully retracted position and fully extended position) is carried out.If lumbar support system 2100 is risen Move as retraction basket 2110, then main shaft 2260 rotates in a first direction.If lumbar support system 2100 is started as extending basket 2110, then main shaft 2260 rotates in a second opposite direction.It is electroluminescent that starting in either direction is that user can utilize Dynamic switch selects.Groove 2290,2292,2294,2296 and the edge of main shaft guide rail 2192 due to slide block 2280,2284 2300, the interaction of 2304, so the rotation of main shaft 2260 makes slide block 2280,2284 translate, in slide block 2280,2284 Individual traveling in proximal direction (2120), and another traveling in distal direction (2124) in slide block 2280,2284.
If tenant expects to extend basket 2110 to provide more lumbar support, then the turning clockwise of main shaft 2260 (distally direction 2124 is observed) causes nearside slide block 2280 to distally advance along main shaft 2260 and distally slide block 2284 edge Main shaft 2260 proximad to advance, i.e. slide block 2280,2284 and their respective attachment drag-line 2320,2324 is closer to each other.With Slide block 2280,2284 to assemble, a part for the interlude 2350 of each drag-line is slided in their respective channel 2180, Thus contact basket 2110.This contact creates the power against basket 2110 guiding forward basket.At nearside slide block 2280 in distally During initial movable on direction, the proximal end 2314 of nearside slide block 2280 contact interval device 2312 and being simultaneously distally moved Spacer 2312.When the distal end portion 2316 of spacer 2312 contacts distally slide block 2284, motor 2234 stops, so that winner The rotation of axle 260 stops.Well known to a person skilled in the art at certain progress point to other method of motor 2234 power-off also Can be used by lumbar support system 2100.The hinge 2374 anchoring to corresponding vertically support member promotes basket by flexure The movement of 2110, to provide smooth motion with running through travel range.
If tenant expects that basket 2110 retracts to reduce lumbar support amount, then rotating counterclockwise of main shaft 2260 causes closely Side slide 2280 is advanced along main shaft 2260 proximad and distally slide block 2284 distally advances along main shaft 2260, i.e. slide block 2280,2284 and they respective attachment drag-line 2320,2324 separate.Along with slide block 2280,2284 moves away from out, from drag-line Interlude 2350 alleviate against the pressure of basket 2110, and basket 2110 is retracted backward as response.When slide block 2280 contact is slow When rushing device 2308, motor 2234 stops as previously described.In slide block 2280,2284 mobile period subsequently, along main shaft At the usual midway between slide block 2280,2284 of spacer 2312 of 2260 free floatinies, holding puts in place.
During the process that basket 2110 is advanced, extend and from extending to retraction from retreating to, drag-line 2320,2324 holding quilt It is arranged in essentially identical plane, and between the first end 2330 and second end 2334 of each drag-line 2320,2324 Angle [alpha] (see Fig. 4) keep obtuse angle.
Figure 35-37 illustrates the modular nature of lumbar support system 2100.Basket 2110 is configured on installed surface 2158 Nearside and distal position at supports main shaft guide rail 2192, and actuator 2230 can install with two possible orientations To main shaft guide rail 2192.Therefore, as indicated, depend on vehicle parameter or the constraint specifically applied, system 2100 can be by with four Plant possible mode to construct.
Figure 38-39 illustrate for have profile pad or flexure pad 440 (all seats as shown in fig. 6, seat 410) another lumbar support system 2400 being used together.Lumbar support system 2400 is similar to lumbar support system 2100, And there is some difference being described below.
Drive assembly or actuator 2430 to be substantially similar to actuator 2330, and need not describe in further detail.Connection Receive the screwed part of the drive shaft of actuator 2430 or sizable part of main shaft guide rail 2462 crossed over by main shaft 2460.Main shaft What guide rail 2462 included figure 39 illustrates best have the first and second slits 2470 near actuator 2430 Attachment bracket or attachment 2466.The inner circumferential 2472 of the one or both in slit 2470 is lined with multiple continuous or discrete Burr, convex ridge or similar projection.In one embodiment, the outer filaments 444 of flexure pad 440 includes nylon or nylon equivalent The shallow layer of thing, the thickness of this coating can be in the rank of about 0.4mm.During assembly, and especially by attachment During 2466 are connected to the outer filaments 444 being associated, attachment 2466 is positioned such that slit 2470 is formed with silk 444 and contacts I.e. buckle puts in place, thus the burr in inner circumferential 2472 " is stung " to enter in coating.Being somebody's turn to do between attachment 2466 and outer filaments 444 Couple and allow main shaft guide rail 2462 to rotate around outer filaments 444, but hinder main shaft guide rail 2462 along the movement of outer filaments 444. And, in the case of not using additional instrument or processing, attachment 2466 can depart from and along outside from outer filaments 444 The length of silk 444 moves to another position and is again coupled, in order to regulation support system 2400 is relative to flexure pad 440 Hes The position at seat 410.
Main shaft 2460 have right hand proximal thread and left hand distal thread and the nearside of correspondence and distally slide block 2480, 2484.With the first travel limit that the buffer 2508 of the drive shaft adjacent positioned of actuator 2430 provides nearside slide block 2480. The spacer 2512 with proximal end 2514 and distal end portion 2516 positions at the spaced winding main shaft 2460 of slide block 2480,2484.Interval Device 2512 is identical with spacer 2312, and spacer 2512 is configured to while setting up the second travel limit leading " float " on axle 2460, and spacer 2512 limits the moving range of slide block 2480,2484.
Nearside and distally drag-line 2620,2624 are coupled to nearside slide block 2480 and distally slide block 2584 respectively.Each Drag-line 2620,2624 includes drag-line body 2638 and is connected to corresponding slide block 2480,2484.The centre of distally drag-line 2624 Section 2650 is longer than the corresponding interlude 2650 of nearside drag-line 2620.As indicated, this part of position of longer section of drag-line 2624 In rigid sleeve 2652, this rigid sleeve 2652 has the internal diameter bigger than the diameter of drag-line 2624, to allow drag-line 2624 to exist Move freely in rigid sleeve 2652.Nearside and distally drag-line 2620,2624 each a part through clip 2660 also Being comprised by clip 2660, nearside and distally drag-line 2620,2624 are connected to bend pad 440 by clip 2660 by outer filaments 444. Drag-line 2620,2624 each terminate at hook accessory 2668, hook accessory 2668 self be fixed to framework 426 corresponding vertically Support member 434,438 (see Fig. 6).
By attachment 2466 and clip 2660, main shaft guide rail 2462 is installed to flexure pad 440 as previously described be used as The aforementioned components of lumbar support system 2400 is fastened to the sole mode of vehicle.
Use preferably with backrest 418 or the electric activation switches of seat bottom 414 adjacent positioned, seat occupant start Actuator 2430 for lumbar support system 2400.When actuator 2430 is activated, system 2400 can be fully retracted In any position between position and fully extended position.Actuator 2430 is energized with actuator 2230 rotating spindle 2260 Identical mode rotating spindle 2460, with translator slider 2480,2484.Along with slide block 2480,2484 is assembled, interlude 2650 connects Touch laterally outside silk 444, thus force flexure pad 440 forward.In the nearside slide block 2480 initial movable phase in a distal direction Between, the proximal end 2514 of nearside slide block 2480 contact interval device 2512 is also distally moved spacer 2512 simultaneously.Work as spacer When the distal end portion 2516 of 2512 contacts distally slide block 2484, actuator 2430 stops, so that the rotation of main shaft 2460 stops. Hook end 2668 allows the connection around vertical support member 434,438 to rotate, to permit when lumbar support system 2400 is advanced forward Permitted the smooth movement of lumbar support system 2400.
Because main shaft guide rail 2462 is not coupled to bend the central silk 448 of pad 440 but can be around the outer filaments of attachment 444 rotate, thus during operation central authorities' silk 448 be allowed to " flexure " more, and user less tends to feel main shaft The existence of guide rail 2462.
In order to lumbar support system 2400 of retracting is to reduce lumbar support amount, seat occupant activates actuator 2430 with inverse Hour hands rotate main shaft 2460, and this causes nearside slide block 2480 proximad to advance and distally slide block 2484 distally advances.Along with Slide block 2480,2484 is farther to be left, and from the interlude 2650 of drag-line 2620,2624, the pressure against lateral filament 444 lateral out alleviates, And bend pad 440 to retract backward.As described earlier, when nearside slide block 2480 contacts buffer 2508, motor 534 stops.
As lumbar support system 2100, during the process that profile pad 440 is advanced, from being retracted into extension and from extension To retracting, drag-line 2620,2624 keeps being arranged in essentially identical plane, and at each drag-line 2620,2624 Angle beta (such as seeing Fig. 9) between first end and the second end keeps obtuse angle.
Figure 40-42 illustrates the modular nature of lumbar support system 2400.Flexure pad 440 is configured in outer filaments 444 In any one at supports main shaft guide rail 2462, and actuator 2430 can be installed to main shaft guide rail with two possible orientations 2462.Therefore, as indicated, depend on vehicle parameter or the constraint specifically applied, system 2400 can be by the side possible with four kinds Formula constructs.
The component of the lumbar support system of Fig. 1, Fig. 6, Figure 13, Figure 14, Figure 22, Figure 27, Figure 32 and Figure 38 can by metal, Plastics or combination of the two structure, such as, main shaft 260,560,860,1150,1450,1452,2260,2460 and main shaft Guide rail 192,562,862,2192,2462 can be formed by metal such as aluminum, and remaining component is formed by plastics.
The various feature and advantage of the present invention are elaborated in following claims.

Claims (20)

1., for a lumbar support system for backrest, described system includes:
Fixed frame；
Being coupled to the Lordosis support of described fixed frame, described Lordosis support can move to second from primary importance Put；
It is coupled to the motor of described Lordosis support；
Screwed part, described screwed part operationally engages with described motor, thus described motor make described screwed part around Axis rotates；
The first traveling member engaged with described screwed part；
The second traveling member engaged with described screwed part, the rotation of wherein said screwed part makes described first traveling member Translate in opposite axial directions along described screwed part with described second traveling member；
Spacer, described spacer between described first traveling member and described second traveling member, described spacer quilt It is configured on described screwed part slide；
First flexible cable, described first flexible cable have be coupled to described first traveling member with described first advance The first end that parts move, be coupled to the second end of described fixed frame with by operationally relevant to described Lordosis support The mid portion of connection；With
Second flexible cable, described second flexible cable have be coupled to described second traveling member with described second advance The first end that parts move, be coupled to the second end of described fixed frame with by operationally relevant to described Lordosis support The mid portion of connection, wherein in response to described first traveling member and the translation of described second traveling member, described first is flexible The described mid portion operation of the described mid portion of drag-line and described second flexible cable with by described Lordosis support from institute State primary importance and move to the described second position.
Lumbar support system the most according to claim 1, wherein said Lordosis support is profile pad.
Lumbar support system the most according to claim 1, wherein said fixed frame includes vertical part, and wherein institute State the basket that Lordosis support is between described vertical support member.
Lumbar support system the most according to claim 1, farther includes spring, and described spring is arranged on described first Between described second end and the described fixed frame of in flexible cable or described second flexible cable.
Lumbar support system the most according to claim 1, farther includes hinge, and described hinge is arranged on described waist Between support member and described fixed frame, and described hinge is coupled to described Lordosis support and described fixed frame.
Lumbar support system the most according to claim 5, wherein in response to described Lordosis support from described primary importance To the movement of the described second position, described hinge pivots.
Lumbar support system the most according to claim 5, farther includes connector, and described connector is arranged on described Between hinge and described fixed frame.
Lumbar support system the most according to claim 1, wherein at described Lordosis support from described primary importance to institute State the mobile period of the second position, described first flexible cable and described second flexible cable and be arranged on essentially identical plane In.
Lumbar support system the most according to claim 1, wherein said first flexible cable and described second flexible cable In the part of advance in the sleeve adjacent with described Lordosis support.
Lumbar support system the most according to claim 1, wherein said first flexible cable be formed at described first end and Angle between described second end, at described Lordosis support from the mobile period of described primary importance to the described second position, Described angle keeps obtuse angle.
11. 1 kinds of support systems for backrest, described system includes:
Fixed frame；
Support member, described support member is the form of profile pad, and described profile pad is suitably mounted on described fixed frame, described Profile pad includes lateral register outer filaments and multiple transverse wire；
Being operably coupled to the first flexible cable of described framework, described first flexible cable has the first end, the second end With drag-line body；
Being operably coupled to the second flexible cable of described framework, described second flexible cable has the first end, the second end With drag-line body；
Actuator, described actuator is constructed such that described first flexible cable and described second flexible cable are relative to described Support member moves, wherein when the actuating of described actuator, at described support member and described first flexible cable and described second soft The contact between the described drag-line body of at least one in property drag-line makes described support member move to second from primary importance Putting, described actuator is only coupled to the described lateral register outer filaments of described support member.
12. support systems according to claim 11, wherein said actuator is rotationally coupled to a described side To localized external silk, described connection hinders described actuator along the movement of lateral register outer filaments described in one.
13. support systems according to claim 11, wherein at described support member from described primary importance to described second The mobile period of position, described first flexible cable and described second flexible cable are arranged in essentially identical plane.
In 14. support systems according to claim 11, wherein said first flexible cable and described second flexible cable The part of advance in the sleeve adjacent with described support member.
15. support systems according to claim 11, wherein said first flexible cable is formed at described first end and institute State the angle between the second end, at described support member from the mobile period of described primary importance to the described second position, described angle Degree keeps obtuse angle.
16. support systems according to claim 11, wherein said primary importance provides the lumbar support of the first degree, and And the described second position provides the lumbar support of second degree different from described first degree.
17. 1 kinds of adjustable support systems being used for there is the seat of fixed frame, described adjustable support system includes:
The support member of the second position can be moved to from primary importance relative to described framework；
Actuator, described actuator is only coupled to described support member, and described actuator is constructed such that described support member Move between described primary importance and the described second position；
The parts being operationally associated with described actuator and can be moved by described actuator, wherein said parts have length Degree；With
Having the first end and the flexible cable of the second end, described first end is coupled to described parts with the institute along described parts State length to advance, and described second end is coupled to described fixed frame, thus described actuator moves described parts and causes Described flexible cable makes described support member move between described primary importance and the described second position.
18. adjustable support systems according to claim 17, wherein said actuator moves described parts and causes described Described first end of flexible cable is advanced along the described length of described parts.
19. adjustable support systems according to claim 17, wherein when the actuating of described actuator, in described support Part with contacting between flexible cable described in described first end and described second part in the middle of end make described support member from Described primary importance moves to the described second position.
20. adjustable support systems according to claim 17, farther include traveling member, and described traveling member can be grasped Make ground to be associated with described parts, be used for the described length shifting along described parts when described actuator moves described parts Dynamic, described first end of wherein said flexible cable is coupled to described traveling member.
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CN105916407B (en) 2019-07-05
KR20160107183A (en) 2016-09-13
WO2015106338A1 (en) 2015-07-23
JP7061154B2 (en) 2022-04-27
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CN110356301A (en) 2019-10-22
JP2017502771A (en) 2017-01-26

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