CN100415194C - Chair and wheel chair - Google Patents

Chair and wheel chair Download PDF

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Publication number
CN100415194C
CN100415194C CNB2005100541041A CN200510054104A CN100415194C CN 100415194 C CN100415194 C CN 100415194C CN B2005100541041 A CNB2005100541041 A CN B2005100541041A CN 200510054104 A CN200510054104 A CN 200510054104A CN 100415194 C CN100415194 C CN 100415194C
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CN
China
Prior art keywords
mentioned
handrail
backrest
chair
medicated cushion
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB2005100541041A
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Chinese (zh)
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CN1666728A (en
Inventor
岩本研一
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Suzuki Motor Corp
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Suzuki Motor Corp
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Publication of CN1666728A publication Critical patent/CN1666728A/en
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Publication of CN100415194C publication Critical patent/CN100415194C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

An electric wheelchair 10 includes a seat cushion 11, a seat back 12 receiving the back part of an occupant sitting on the seat cushion 11, and a footrest 13 supporting the leg parts under the knees of the occupant sitting on the seat cushion 11 and served as the footrest. The armrests 30 disposed in a predetermined height position of the left/right sides of the seat back 12 are displaced while retaining an approximate parallel state with the seat cushion 11 despite of reclining of the seat back 12 by a link mechanism 31 and is slidable to the front/rear by a slide mechanism.To improve the usability by preventing the moving of the forearm parts on armrests against friction when reclining a backrest to a seat.

Description

Chair and wheelchair
Technical field
The present invention relates to be applicable to the chair of wheelchair of Move tool, particularly possess the chair of the handrail of the forearm that bears the user of taking a seat as person etc. at advanced age for example.
Background technology
For example patent documentation 1 is disclosed such, can make backrest known with respect to the wheelchair with reclining back that the seat upset becomes level.Patent documentation 1 disclosed wheelchair can be equipped with handrail rotationally in the left and right sides of backrest, and handrail can rotate into the state parallel with backrest or become to be similar to 90 ° angle with backrest.
But, because the centre of gyration of occupant's elbow joint is not necessarily consistent with the center of rotation of handrail, if therefore only rotate handrail when lying action leaning on, then forearm to overcome friction and on handrail before and after move.Therefore, forearm will move in friction backward during the overturning backrest, otherwise forearm will support and moves forward when holding up backrest, uses comfort poor, also have sometimes forearm from handrail fall may.
[patent documentation 1] Japanese patent laid-open 8-126666 communique
Summary of the invention
The present invention is exactly in view of above problem, and purpose is to prevent that when making backrest lean on the action of lying with respect to the medicated cushion upset forearm from overcoming friction moving on handrail, improves and use comfort.
The invention provides a kind of chair, comprising: medicated cushion; Supporting is seated in the backrest at the back of the user on the above-mentioned medicated cushion; The handrail that is configured on the lateral desired height position of above-mentioned backrest, can supports rotationally with the rear end; Make partial the lie mechanism of above-mentioned backrest with respect to above-mentioned medicated cushion upset, above-mentioned handrail keeps state with above-mentioned medicated cushion almost parallel no matter how above-mentioned backrest overturns to shift one's position by link mechanism, it is characterized in that, above-mentioned handrail can slide front and back by slide mechanism, above-mentioned chair possesses controlling organization, this controlling organization slides can make above-mentioned handrail in leaning on the operation of lying before and after, and in non-slip of leaning on the above-mentioned handrail of restriction in the operation of lying.
Other of chair of the present invention are characterised in that, above-mentioned handrail by can support rotationally with the rear end, no matter how above-mentioned backrest overturns all to shift one's position by above-mentioned link mechanism keeps with the handrails framework of the state of above-mentioned medicated cushion almost parallel and is arranged on handrail cushion pad on the above-mentioned handrails framework, that be used for bearing forearm constituting, above-mentioned handrail cushion pad by above-mentioned slide mechanism with respect to sliding before and after the above-mentioned handrails framework.At this moment, above-mentioned slide mechanism by the interior slide rail in the top and above-mentioned handrail cushion pad that is arranged on above-mentioned handrails framework following any one, be arranged on the external slide rail on any another one and be encased in ball between the external slide rail constitute.
Other of chair of the present invention are characterised in that, are used for operating leaning on the front end that the operating portion of lying is arranged on above-mentioned handrail, move forward and backward with the slip of above-mentioned handrail.
The present invention also provides a kind of wheelchair, it is characterized in that, possesses chair as described below, and described chair comprises: medicated cushion; Supporting is seated in the backrest at the back of the user on the above-mentioned medicated cushion; The handrail that is configured on the lateral desired height position of above-mentioned backrest, can supports rotationally with the rear end; Make partial the lie mechanism of above-mentioned backrest with respect to above-mentioned medicated cushion upset, above-mentioned handrail keeps state with above-mentioned medicated cushion almost parallel no matter how above-mentioned backrest overturns to shift one's position by link mechanism, and can slide front and back by slide mechanism, this chair possesses controlling organization, this controlling organization slides can make above-mentioned handrail in leaning on the operation of lying before and after, and in non-slip of leaning on the above-mentioned handrail of restriction in the operation of lying.
If therefore employing the present invention because handrail slides with forearm when making backrest lean on the action of lying with respect to medicated cushion upset, can prevent that forearm from overcoming friction and move, and improves and use comfort on handrail.
Description of drawings
Fig. 1 represents the axonometric chart of the integrally-built seating state of the electric wheelchair in the example of the present invention
Fig. 2 represents the vertical view and the side view of the integrally-built seating state of the electric wheelchair in the example of the present invention
Fig. 3 represents the dorsal view and the front view of the integrally-built seating state of the electric wheelchair in the example of the present invention
Fig. 4 represents the perspective view of the integrally-built lying status of the electric wheelchair in the example of the present invention
Fig. 5 represents the vertical view and the side view of the integrally-built lying status of the electric wheelchair in the example of the present invention
Fig. 6 represents the front view of the integrally-built lying status of the electric wheelchair in the example of the present invention
Fig. 7 represents that the handrail in the example of the present invention reaches the figure of slide rail on every side
Fig. 8 represents the trailing wheel vertical view on every side of the electric wheelchair in the example of the present invention
Fig. 9 represents the block diagram of schematic configuration of the power drive system of the electric wheelchair in the example of the present invention
The specific embodiment
The preferred example of wheelchair of the present invention is described below with reference to the accompanying drawings.Fig. 1~Fig. 6 is respectively the electric wheelchair 10 of this example is seen in expression from all directions integrally-built figure.Electric wheelchair 10 comprises that the medicated cushion that the occupant took a seat 11 as user, supporting are seated in the position below the knee of shank that the backrest 12 at the back of the occupant on the medicated cushion 11, supporting be seated in the occupant on the medicated cushion 11 and become the pedal 13 of footrest, and they are interconnection by link mechanism.And, utilize the effect of link mechanism to have and lean on the function of lying, (Fig. 1~Fig. 3) and occupant can take lying status (Fig. 4~Fig. 6) of accumbency posture can to obtain the seating state that the occupant can take a seat.
Medicated cushion 11 is by the sole supporting, and the main frame 14 that constitutes the pair of right and left of this sole extends to the rear end across front end below medicated cushion 11.In addition, in each figure, represent the place ahead and rear with arrow Fr or Rr respectively as required.About a plurality of cross-over connection members 15 of main frame 14 usefulness (tubing) connect, have necessity and enough strength and stiffness.Medicated cushion 11 by near the upright front end that is located at main frame 14 and near the carriage 16,17 the rear end be bearing on the sole.
Main frame 14 suitably disposes obliquely to the front lower place, and its front end has that be bearing on the fulcrum 18 can be around the fulcrum 18 castor type front-wheel 19 of conversion direction freely.Has the trailing wheel 20 that drives independently about the enough power units described later of energy near the rear end of main frame 14.Trailing wheel 20 usefulness are bearing on the main frame 14 by the suspension link 21 that the frame axle is bearing in the forward suitable place of close main frame 14, can move up and down with respect to main frame 14 in predetermined stroke.Insert between main frame 14 and the trailing wheel 20 and be provided with the buffer gear 22 that possesses buffer spring, guarantee the shock-absorbing capacity of sole thus.
Backrest 12 is installed on a type or the approximate rectangular back frame 23.These back frame 23 usefulness link mechanisms 24 are connected to the rearward end of main frame 14, rely on the effect of this link mechanism 24 (hereinafter referred to as " leaning on the mechanism of lying "), and backrest 12 can rotate (dotted arrow A of Fig. 1) between seating state and lying status.In addition, the top of backrest 12 is provided with headrest 26 by strut 25, and the handle 27 that hand push is used is set up in the position of the suitable height of (back) side overleaf.
Leaning on the mechanism 24 of lying drives by leaning on the driving device 28 of lying.Should lean on the driving device 28 of lying to make partial mechanism 24 of lying coupled with doing predetermined actions, and work electrically by the drive division 29 of built-in drive motors by its expanding-contracting action.
Handrail 30 in the position (with the corresponding position of the occupant's who takes a seat elbow) of the predetermined altitude of backrest 12 left and right sides configuration pair of right and left.Handrail 30 usefulness its rear end on backrest 12 (back frame 23), can be rotated (the dotted arrow B of Fig. 1) along the vertical direction by pivot suspension, keep level of approximation under the seating state of electric wheelchair 10 as depicted in figs. 1 and 2.And handrail 30 usefulness its rear end link to each other with sole by link mechanism 31.Be specially, link rod 31A and the link rod 31B that is connected with carriage 17 with the crank-like that links to each other with the rearward end of handrail 30, backrest 12 rotary movement how no matter, handrail 30 is all corresponding or rotate around its pivot synchronously and change the position with backrest 12 the partial action of lying, and keeps the state substantially parallel with medicated cushion 11.
Be equipped with at the front end position of a handrail 30 (this example is the right side) and be used for operation electric wheelchair 10 and when non-walking, be used for leaning on the controller 32 of lying and operating.At this moment, the configuration of controller 32 should make the occupant who takes a seat elbow can be placed on the handrail 30 and manipulation bar 33 etc. easily.In addition, also can on the handrail 30 in left side, controller 32 be set.Controller 32 have be used for driving that motor that control rear wheel drive described later uses makes that electric wheelchair 10 is walked, the action of rotation to the left or to the right etc., perhaps lean on and lie action so that obtain the stick 33 of seating state or lying status, and running and other handle necessary Switch 34 etc., for example on and off switch switched to walking, partial lie, cut off the electricity supply.
Herein, as shown in Figure 7, handrail 30 by can support rotatably with the rear end, how backrest 12 to overturn and all utilize link mechanism 31 to change positions to keep with the handrails framework 30A of the state of medicated cushion 11 almost parallels and be arranged on the handrail cushion pad 30B that is used for bearing forearm on the handrails framework 30A constituting, the rear end of handrails framework 30A is connected with the link rod 31A of crank-like.
Be equipped with the slide rail 50 (with reference to Fig. 7 (c)) as slide mechanism between handrails framework 30A and the handrail cushion pad 30B, thus, handrail cushion pad 30B can be with respect to sliding before and after the handrails framework 30A.In illustrated example, slide rail 50A in being fixed with on handrails framework 30A is fixed with external slide rail 50B below handrail cushion pad 30B, is incorporated with a plurality of ball 50C between interior external slide rail 50A, the 50B.So, straight reciprocating motion can be carried out extremely easily, slide with handrail cushion pad 30B when forearm need be moved forward and backward.
In addition, the end of the crank-like link rod 31A that the rear end of handrails framework 30A connects can be rotationally by pivot suspension on backrest 12 (back frame 23), the other end is connected with link rod 31B, but for fear of with the interference of handrail cushion pad 30B, carried out suitable bending machining so that leave the sliding trace of handrail cushion pad 30B.In addition, the structure of link mechanism 31 is not limited to schematic structure, so long as no matter how backrest 12 verts and can both make handrail 30 change positions to keep state with medicated cushion 11 almost parallels, and the structure of not interfering with the slip of handrail cushion pad 30B just can.
And, in the front end bottom of handrail cushion pad 30B the carriage 51 that forwards extends is installed, fixing controller 32 on this carriage 51.Therefore, when handrail cushion pad 30B slided, controller 32 also moved forward and backward with handrail cushion pad 30B, and the relative position relation of handrail cushion pad 30B and controller 32 is constant.In addition, carriage 51 is downward curved one section shape in the centre in illustrated example, in this section and be provided with between the front end of handrails framework 30A and make handrail cushion pad 30B can slide backward the interval of necessary distance.
And, be provided with the controlling organization that restriction handrail cushion pad 30B slides.The structure of controlling organization without limits, as long as for example such suitable place in handrails framework 30A is provided with the controlling organization 52 that limiter 52A can be moved up and down shown in the image pattern 7 (b), this limiter 52A is moved up combine (state of Fig. 7 (b)), limiter 52A be moved down remove this combination just passable with handrail cushion pad 30B.At this moment, only, just allow handrail cushion pad 30B slip in the combination of leaning on the device 52A that lifts restrictions when lying action.In addition, controlling organization 52 both can be by electrical control, also can with lean on lie mechanism 24 or link mechanism 31 and mechanically link.
Pedal 13 is installed on the pedal framework 35.Its upper end of pedal framework 35 usefulness can be along the vertical direction rotationally by pivot suspension in the appropriate location of carriage 16 (the dotted arrow C of Fig. 1), the carriage 36 that this upper part (pivot props up part) set up is provided with the guide member (or limiter) 37 of restriction slewing area.Pedal 13 is rotated by guide member 37 guiding, and is low as Fig. 1 or maintenance shown in Figure 2 the place ahead under the seating state of electric wheelchair 10, and under lying status, is in the roughly the same height of medicated cushion 11 and is adjacent the level of being configured to (Fig. 4, Fig. 5).The front end of pedal framework 35 have can image pattern 1 the pedal 38 that rotates like that of arrow D.
Here, pedal framework 35 is connected with partial mechanism 24 of lying that above-mentioned main frame 14 rear ends are provided with by link mechanism 39.Link mechanism 39 extends along fore-and-aft direction in the inboard of main frame 14 and is provided with, and with these main frame 14 almost parallels.Lean on the mechanism 24 of lying in order to be leaned on the driving device 28 of lying and to drive and with its interlock, link mechanism 39 is along roughly fore-and-aft direction reciprocating actions, thus, the spinning movement that pedal 13 is scheduled to.That is, under the state that lies low, medicated cushion 11, backrest 12 and pedal 13 are done as a whole continuous as shown in Figure 4 displacement and are become horizontal arrangement.
Then, in the inboard of left and right sides trailing wheel 20, such power unit 40 of each trailing wheel 20 of configuration driven respectively shown in image pattern 1 or Fig. 3 etc.In power unit 40 image patterns 8 also expression like that by as the motor 41 of power source with comprise that the gear-box 42 that dynamic retarding with this motor 41 passes to the reducing gear train of trailing wheel 20 constitutes.Motor 41 roughly is tubular, horizontal arrangement.Contain a plurality of gears in the housing of gear-box 42, have the rotating shaft of power shaft of the reducing gear train that constitutes as these gears or the motor 41 of main shaft 41a and be combined into one with this gear-box 42.
At this moment, gear-box 42 is configured in the inboard of trailing wheel 20, has the axletree of rear wheel 43 of the outside that is projected into the overall width direction at the roughly intermediary position of fore-and-aft direction, by these axletree of rear wheel 43 supporting wheels 20.As shown in Figure 8, though motor 41 is installed in the inboard of gear-box 42, parallel with axletree of rear wheel 43 and by afterwards disposing.By dispose motor 41 so backward, can guarantee the space of its front side with staggering.In addition, motor 41 (rotating shaft 41a) is positioned at identical height (with reference to Fig. 3 (b)) with axletree of rear wheel 43.
The battery 44 of power unit 40 power supplies is given in configuration below medicated cushion 11.Set battery bracket 45 (with reference to Fig. 6 etc.) between the gear-box 42 of the present invention below medicated cushion 11, battery 44 is carried on this battery bracket 45, can insert from the place ahead or take off.At this moment, in the place ahead of battery bracket 45, pedal 13 can be bearing in the front end of medicated cushion 11 along the vertical direction pivotally, by upwards rotating pedal 13 (lying status), can open the zone in battery bracket 45 the place aheads.
Shown in Fig. 6 waits,, approximately horizontally support the carriage 47 of battery-mounted usefulness with frame member 46 from the frame member 46 that the cross-over connection member 15 of crossbearer between left and right sides main frame 14 hung oneself and established battery bracket 45.The below that battery bracket 45 is formed on medicated cushion 11 is 20 zone from front-wheel 19 to trailing wheel, constitute in the present embodiment can before and after carry the battery bracket 45 of 2 box-shaped batteries 44 side by side.
In addition, offer the battery that is used for inserting or extract out battery 44 in the front portion of battery bracket 45 and pull and push mouth, this battery pulls and pushes to be set up the fixing battery 44 that keeps and makes its not mobile or battery limitation device 48 of rocking battery bracket 45 in the mouth.
And possesses control device 49 (with reference to Fig. 9) according to the operation control power unit 40 of the controller 32 on the handrail 30 that is attached to medicated cushion 11.Control device 49 utilizes spatial configuration between battery bracket 45 and the medicated cushion 11 in sole.At this moment, can suitably utilize cross-over connection member 15 by lift-launch support control mechanisms 49 such as carriages.And, connect the above-mentioned link mechanism 39 that leans on lie mechanism 24 and pedal 13 and extend the side that is arranged on control device 49 along fore-and-aft direction.
Fig. 9 is the block diagram of the schematic configuration of the electric drive system of the electric wheelchair 10 of this example of expression.By the stick 33 or the Switch 34 of operation control 32, with control signal input control device 49.Power unit 40 about control device 49 offers the electric power of battery 44 according to this control signal (L, R) or lean on built-in drive motors in the drive division 29 of the driving device 28 of lying.Therefore, operation control 32 can carry out the driving control of electric wheelchair 10.
In said structure, under the seating state of Fig. 1~Fig. 3, the occupant can be seated on the electric wheelchair 10 and drive power unit 40 by operation control 32, freely controls the walking of electric wheelchair 10.
When electric wheelchair 10 is non-walking (when stopping), switch to " lean on and lie " from " walking " by predetermined switch with controller 32, can be with controller 32 as the operating portion that leans on the operation of lying.So, corresponding with the operation of controller 32, can make backrest 12 between seating state and lying status, lean on the action of lying with respect to medicated cushion 11 upsets.Lean in the course of action of lying at this, no matter how backrest 12 overturns, handrail 30 can both change the state of position maintenance and medicated cushion 11 almost parallels.
Under the lying status of Fig. 4~shown in Figure 6, the occupant can take the accumbency posture.At this moment, can guarantee the zone of the broad on medicated cushion 11, backrest 12 and the pedal 13 of horizontal arrangement as a whole, realization such as can stand up as required at good ease of use.
Can remove the Sliding Control of handrails framework 30A when moving with controlling organization 52 above-mentioned partial lying.When therefore backrest 12 being fallen backward, handrail cushion pad 30B can be moving backward with forearm, otherwise handrail cushion pad 30B can move forward with forearm when digging backrest 12.Thus, prevent that forearm from overcoming friction and move, and therefore improved the use comfort on handrail 30.
And, when handrails framework 30A slides because the relative position relation of handrail cushion pad 30B and controller 32 is constant as previously mentioned, even so under lying status for example the occupant also can not stand up just can lean on the operation of lying with controller 32.
More than with various examples the present invention has been described, but the present invention is not limited to these examples, can change within the scope of the invention.That is, the present invention is so long as possess handrail, have the chair that leans on the function of lying and can both use.If healthy person, lean on unconsciously lift when lying action hands just can make forearm not with the handrail friction, but wait the electric wheelchair or the manual wheelchair that use to use the present invention if for example offer the weak person at advanced age of arm strength specially, use on the comfort this point in raising and can enumerate king-sized effect.

Claims (5)

1. a chair comprises: medicated cushion; Supporting is seated in the backrest at the back of the user on the above-mentioned medicated cushion; The handrail that is configured on the lateral desired height position of above-mentioned backrest, can supports rotationally with the rear end; Make partial the lie mechanism of above-mentioned backrest with respect to above-mentioned medicated cushion upset,
Above-mentioned handrail keeps state with above-mentioned medicated cushion almost parallel no matter how above-mentioned backrest overturns to shift one's position by link mechanism, it is characterized in that,
Above-mentioned handrail can slide front and back by slide mechanism,
Above-mentioned chair possesses controlling organization, and this controlling organization slides can make above-mentioned handrail in leaning on the operation of lying before and after, and in non-slip of leaning on the above-mentioned handrail of restriction in the operation of lying.
2. chair as claimed in claim 1, it is characterized in that, above-mentioned handrail by can support rotationally with the rear end, no matter how above-mentioned backrest overturns to shift one's position by above-mentioned link mechanism keeps with the handrails framework of the state of above-mentioned medicated cushion almost parallel and is arranged on handrail cushion pad on the above-mentioned handrails framework, that be used for bearing forearm constituting, above-mentioned handrail cushion pad by above-mentioned slide mechanism with respect to sliding before and after the above-mentioned handrails framework.
3. chair as claimed in claim 2, it is characterized in that, above-mentioned slide mechanism by the interior slide rail in the top and above-mentioned handrail cushion pad that is arranged on above-mentioned handrails framework following any one, be arranged on the external slide rail on the above-mentioned another one and be encased in ball between the external slide rail constitute.
4. chair as claimed in claim 1 is characterized in that, is used for leaning on the lie operating portion of operation and is arranged on the front end of above-mentioned handrail, moves forward and backward with the slip of above-mentioned handrail.
5. a wheelchair is characterized in that, possesses chair as described below, and described chair comprises: medicated cushion; Supporting is seated in the backrest at the back of the user on the above-mentioned medicated cushion; The handrail that is configured on the lateral desired height position of above-mentioned backrest, can supports rotationally with the rear end; Make partial the lie mechanism of above-mentioned backrest with respect to above-mentioned medicated cushion upset, above-mentioned handrail keeps state with above-mentioned medicated cushion almost parallel no matter how above-mentioned backrest overturns to shift one's position by link mechanism, and can slide front and back by slide mechanism, this chair possesses controlling organization, this controlling organization slides can make above-mentioned handrail in leaning on the operation of lying before and after, and in non-slip of leaning on the above-mentioned handrail of restriction in the operation of lying.
CNB2005100541041A 2004-03-09 2005-03-04 Chair and wheel chair Expired - Fee Related CN100415194C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004066134 2004-03-09
JP2004066134A JP4403835B2 (en) 2004-03-09 2004-03-09 Chairs and wheelchairs

Publications (2)

Publication Number Publication Date
CN1666728A CN1666728A (en) 2005-09-14
CN100415194C true CN100415194C (en) 2008-09-03

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CN (1) CN100415194C (en)
TW (1) TW200529798A (en)

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CN106726202A (en) * 2017-02-27 2017-05-31 东莞产权交易中心 A kind of folding electric wheelchair
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CN1666728A (en) 2005-09-14
TW200529798A (en) 2005-09-16
JP2005253535A (en) 2005-09-22
JP4403835B2 (en) 2010-01-27
TWI302453B (en) 2008-11-01

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