WO2020088553A1 - Crémaillère en fer utilisée pour un fauteuil inclinable d'aide au maintien et procédé de fonctionnement associé - Google Patents

Crémaillère en fer utilisée pour un fauteuil inclinable d'aide au maintien et procédé de fonctionnement associé Download PDF

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Publication number
WO2020088553A1
WO2020088553A1 PCT/CN2019/114517 CN2019114517W WO2020088553A1 WO 2020088553 A1 WO2020088553 A1 WO 2020088553A1 CN 2019114517 W CN2019114517 W CN 2019114517W WO 2020088553 A1 WO2020088553 A1 WO 2020088553A1
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WO
WIPO (PCT)
Prior art keywords
link
footrest
bracket
support
electric push
Prior art date
Application number
PCT/CN2019/114517
Other languages
English (en)
Chinese (zh)
Inventor
朱黎明
张直行
Original Assignee
常州泽辉机械有限公司
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
Application filed by 常州泽辉机械有限公司 filed Critical 常州泽辉机械有限公司
Priority to EP19877690.8A priority Critical patent/EP3777611A4/fr
Publication of WO2020088553A1 publication Critical patent/WO2020088553A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/14—Standing-up or sitting-down aids
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/002—Chair or stool bases
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • A47C7/462—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
    • A47C7/506—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/1067—Arrangements for adjusting the seat adjusting the backrest relative to the seat portion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/1075—Arrangements for adjusting the seat tilting the whole seat backwards
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
    • A61G5/125—Rests specially adapted therefor, e.g. for the head or the feet for arms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
    • A61G5/128—Rests specially adapted therefor, e.g. for the head or the feet for feet

Definitions

  • the invention relates to the technical field of sofa accessories and equipment, in particular to an iron stand for an auxiliary station type recliner and a working method thereof.
  • the recliner is already a necessary furniture for many families. With the continuous improvement of people's living standards, electric recliner sofas have gradually entered ordinary families.
  • the electric recliner sofa is a sofa that can lie down automatically with electricity.
  • the surface is generally covered with high-quality real cowhide, filled with high-grade sponge in the middle, and the main structure is supported by the retractable iron frame of the recliner, which is fashionable and beautiful. Widely used in homes, companies and other places.
  • the emergence of the electric sofa recliner can be said to have opened up a new chapter in the leisure industry and the furniture industry.
  • the electric sofa recliner has the practicality of furniture and the leisure type of the leisure industry. The design of high-tech automation can perfect these three Combined together.
  • the existing recliner iron frame generally has a lying, tilting, and sitting posture.
  • recliner iron frames with the above functions, such as the Chinese patent authorization announcement number CN202892335U, CN203538831U, CN203314481U, etc.
  • the recliner iron described in the above patent documents The frame does not have the function of assisting standing. For some elderly people and people with disabilities, there are many inconveniences in use.
  • China ’s authorized patent announcement number CN203986974U discloses a dual-motor-driven recliner mechanism, including: a base, The base is provided with a first driving head, a second driving head, a tail adjusting bracket assembly and a middle adjusting bracket assembly.
  • the first driving head drives the tail adjusting bracket to be in a vertical state, a lying state or an inclined state.
  • the middle adjustment bracket assembly is connected with a front adjustment link part
  • the second drive head drives the middle adjustment bracket assembly to move up and down to be upright or lying, and drives the front adjustment link part to open State or retracted state
  • the front adjustment link part is retracted by the tail adjustment bracket assembly when in the retracted state Tight, in the opened state is released aft adjustable bracket assembly.
  • the double-motor-driven recliner mechanism can realize the functions of extending and contracting the footrest of the recliner, raising and lowering the recliner frame, and tilting and erecting the backrest. For some special users, it is necessary to realize a lying state with the head down and the foot high on the recliner, so as to accelerate the blood flow from the feet to the head, or to achieve other corresponding purposes.
  • the existing recliner structure cannot achieve the above functions.
  • the technical problem to be solved by the present invention is to provide an iron stand for an auxiliary station type recliner with a simple structure and realizing the functions of head, feet, feet and heights, and a working method thereof.
  • the iron frame for the station-type recliner includes: a tilting bracket, a bottom frame, a telescopic bracket, a rotating rod, an upper frame assembly, and a first electric push rod.
  • the bottom frame is hingedly matched so that the rear end of the tilt frame overlaps the rear end of the bottom frame, and the front end of the bottom frame overlaps the front end of the tilt frame; the rear end of the upper frame assembly and the rear end of the bottom frame Articulated fit, the rotating rod is arranged above the front part of the upper rack assembly, both ends of the rotating rod are drive-fitted with the telescopic support, the front end of the upper rack assembly is provided with a station stop, the rotating rod
  • the lower side of the end is provided with an auxiliary station bracket adapted to the auxiliary station stop, the rear part of the upper rack assembly is further provided with a rotary lever limit stop, the front end of the first electric push rod and the middle of the rotary lever Articulated fit, the tail end of the first electric push rod is hingedly matched with the tail end of the tilt bracket so that the first electric push rod is tilted between the rotating rod and the tilt bracket; during assembly, the first electric push rod is in In the initial state, the footrest extends The component is
  • the upper rack assembly includes an H-shaped bracket, an inclined link, and an auxiliary station link.
  • the bottom end of the bottom frame is fixedly provided with a bottom frame upright support
  • the H-shaped bracket includes an H-shaped bracket horizontal support and a fixed setting H-type bracket side braces at both ends of the H-type bracket cross braces, the tail ends of the H-type brace side braces are hingedly matched with the bottom of the underframe stand braces, and the tail ends of the connecting rods of each auxiliary station are fixedly provided with standing braces
  • the front end of the side bracket of the H-shaped bracket is hingedly matched with the bottom of the standing support
  • the rear end of each inclined link is hingedly matched with the top of the corresponding stand support
  • the front end of the inclined link is in the middle of the standing support It is hinged and matched so that the H-shaped bracket side support, standing support support, inclined link, and underframe stand support form a quadrilateral structure.
  • the telescopic support includes symmetrically arranged two side supports, a front end of each side support is provided with a retractable footrest assembly, a rear end of each side support is provided with a retractable backrest assembly, and a middle support of each side support is provided with a side support drive assembly ,
  • the front end of each side support is also provided with a support link, the top end of the support link is hinged to the side support, the bottom end of the support link is hinged to the standing support; the two ends of the rotating rod are fixed respectively
  • a rotating connecting rod is provided, and a fixed connecting rod is fixedly arranged on the inner side of each side stay.
  • the rotating connecting rod includes a front connecting end, a rear connecting end and a rotating connecting end distributed in a triangle shape.
  • the side support driving assembly includes a first connecting rod and a second connecting rod that are distributed in an inverted A shape.
  • the two ends of the armrest bracket cross brace are fixedly provided with pushing links, and the top end of the first connecting rod is The side stays are hingedly engaged, the tail end of the first link is hingedly engaged with the bottom end of the second link, the top end of the second link is hingedly engaged with the rear connection end, the first The middle part of the connecting rod is hingedly matched with the tail end of the pushing link, so that the rotating rod can drive the side support driving assembly and the telescopic bracket to move.
  • the footrest telescopic assembly includes a first footrest link and a second footrest link provided in parallel, a third footrest link and a fourth footrest link provided in parallel, a footrest front support, and a footrest A transmission rod, the tail ends of the first footrest link and the second footrest link are hingedly engaged with the front end of the side support, and the tail end of the third footrest link is first connected with the footrest
  • the front end of the rod is hingedly engaged
  • the rear end of the fourth link of the footrest is hingedly engaged with the front end of the second link of the footrest, the front end of the third link of the footrest, the fourth link of the footrest and the shelf
  • the front support of the footrest is hingedly matched.
  • the middle of the first link of the footrest is provided with a footrest rotation pin, and the middle of the fourth link of the footrest is hingedly engaged with the footrest rotation pin.
  • the tail end is hingedly engaged with the front connecting end of the rotating link, and the front end of the footrest driving link is hingedly engaged with the second link of the footrest, so that the rotating link can drive the footrest to drive
  • the connecting rod and the footrest rotation pin move to realize the footrest Link and a second link footrest, the footrest third link and the fourth link modification telescopic footrest.
  • the backrest telescopic assembly includes a backrest first link, a backrest second link, and a backrest third link.
  • the bottom end of the backrest first link is fixedly connected to the tail end of the side support, and the backrest
  • the top end of the first link is hingedly engaged with the front end of the second link of the backrest
  • the rear end of the second link of the backrest is hingedly engaged with the top end of the third link of the backrest, between the third links of the backrest
  • the backrest cross brace is fixedly arranged, and when the backrest cross brace moves, the first backrest link, the second backrest link, and the third backrest link can be driven to expand and contract.
  • pads are provided on both sides of the rear end of the chassis and on both sides of the front end of the chassis, and rollers are provided on both sides of the front end of the inclined bracket.
  • the working method of the iron stand for the auxiliary station chair includes the following steps:
  • A. Sitting position The first electric push rod is in the initial state, the tilting bracket and the bottom frame are in the horizontal state, and the footrest telescopic assembly is in the retracted state, which can realize the sitting position.
  • the iron frame for the stand-assisted recliner of the present invention is provided with a tilting bracket so that after the telescopic bracket is unfolded, the front end of the chassis can be lifted by the first electric push rod drive , The user can realize the function of lowering the head and height when lying down, which enriches the function of the iron frame;
  • the setting of the roller makes the front end of the tilting bracket slidingly cooperate with the ground to reduce the friction resistance;
  • (3) has three The rotating connecting rod at the connecting end makes it possible to realize the three operation modes of a flat lying posture, a casual lying posture, and a standing posture with only one electric push rod.
  • the structure is simple and the functions are rich.
  • FIG. 1 is a three-dimensional schematic structural view of an iron stand for a standing chair type recliner of the present invention
  • FIG. 2 is a schematic view of the structure of the iron stand for a standing chair of the present invention in a sitting position;
  • FIG. 3 is a schematic structural view of an iron stand for a standing chair type reclining chair of the present invention in a flat lying state;
  • FIG. 4 is a schematic view of the structure of the iron stand for a standing chair type reclining chair of the present invention in an upturned lying position
  • FIG. 5 is a schematic structural view of an iron stand for an auxiliary station type recliner of the present invention in an auxiliary station state;
  • FIG. 6 is a schematic diagram of an explosion structure of an iron stand for a standing chair of the present invention.
  • FIG. 7 is a schematic view of a stereoscopic structure of a telescopic bracket and a rotating rod
  • Figure 8 is a side view of the telescopic support
  • FIG. 9 is a schematic diagram of the assembly structure of the H-shaped bracket, the tilted bracket, the bottom frame, the tilted link, and the auxiliary station link,
  • Fig. 10 is an exploded schematic view of an H-shaped bracket, a tilted bracket, a bottom frame, a tilted link, and an auxiliary station link.
  • Telescopic support 1 side support 11,
  • Rotating rod 2 first connecting frame 21, second connecting frame 22, auxiliary station support 23, first electric push rod 24, second electric push rod 25,
  • Armrest bracket 3 armrest bracket cross brace 31, armrest bracket side brace 32, push link 33,
  • H-shaped bracket 4 H-shaped bracket 41, H-shaped bracket 42,
  • Tilt bracket 5 tilt bracket front support 51, tilt bracket rear support 52, tilt bracket side support 53, hinge bracket 54, roller 55, limit stop 56,
  • underframe 6 Underframe 6, underframe front support 61, underframe rear support 62, underframe side support 63, underframe upright support 64, cushion 65,
  • the iron frame for the stand-assisted recliner of this embodiment includes a tilting bracket 5, a bottom frame 6, a telescopic bracket 1, a rotating rod 2, an upper frame assembly, and a first electric push rod 24 ⁇ ⁇ ⁇ 25 ⁇ ambular bracket 3.
  • the underframe 6 includes an underframe front support 61, an underframe rear support 62, and two underframe side supports 63 placed on both sides.
  • the two ends of the underframe front support 61 are respectively connected to the two underframes
  • the front ends of the side braces 63 are welded and fixed.
  • the two ends of the bottom bracket rear braces 62 are welded and fixed to the rear of the two bottom bracket side braces 63 to form a rectangular bottom bracket frame.
  • the two ends of the bottom bracket rear braces 62 and the bottom bracket front braces The two ends of 61 are respectively provided with cushion blocks 65, so that the bottom frame 6 can be in contact with the ground by the cushion blocks 65; the rear portions of the two bottom frame side supports 63 are respectively provided with upwardly extending bottom frame standing supports 64.
  • the tilting bracket 5 includes a tilting bracket 5 including a tilting bracket front support 51, a tilting bracket rear support 52, and two tilting bracket side supports 53 placed on both sides, and both ends of the tilting bracket front support 51 Welded and fixed to the front ends of the two inclined bracket side braces 53 respectively, the two ends of the inclined bracket rear braces 52 are welded and fixed to the rear of the two inclined bracket side braces 53 to form a rectangular inclined bracket frame, and the two ends of the inclined bracket front braces 51 Rollers 55 are provided, and the middle and outer sides of the inclined bracket side stays 53 are hingedly engaged with the inner and middle sections of the underframe side stays 63, and the two ends of the inclined bracket rear stays 52 are protrudingly provided with limit stops 56 to make the inclined bracket 5 tail
  • the limit stop 56 at the end overlaps the underframe back support 62 at the rear end of the underframe 6, and the underframe front support 61 at the front end of the underframe 6 overlaps the front of the inclined bracket side support 53
  • the upper rack assembly includes an H-shaped bracket 4, a pair of inclined links 7, a pair of auxiliary station links 8,
  • the H-shaped bracket 4 includes an H-shaped bracket cross brace 41 and is fixedly arranged at the H H-type support side supports 42 at both ends of the horizontal support 41, the tail ends of the H-type support side supports 42 are hingedly fitted with the bottoms of the corresponding underframe uprights 64, respectively 82
  • the front end of the H-shaped bracket side support 42 is hingedly matched with the bottom of the standing support 82
  • the rear end of each inclined link 7 is hingedly matched with the top end of the corresponding base stand 64
  • the front end of the inclined link 7 is matched with the standing support 82
  • the central part of the hinge is hinged so that the H-shaped bracket side support 42, the standing support 82, the inclined link 7, and the underframe upright 64 form a quadrilateral structure.
  • the telescopic support 1 includes symmetrically arranged two side supports 11, the front end of each side support 11 is provided with a retractable footrest assembly, and the rear end of each side support 11 is provided with a retractable backrest assembly, each The side brace 11 is provided with a side brace drive assembly in the middle, and the rotating rod 2 is provided on the upper side of the front link 8 of the station.
  • the connecting rod 15 and the rotating connecting rod 13 include a front connecting end 132, a rear connecting end 133 and a rotating connecting end 131 distributed in a triangle shape.
  • the rotating connecting end 131 is hingedly engaged with the bottom of the corresponding fixed connecting rod 13.
  • the front end of each side brace 11 is also provided with a bracket link 16, the top end of the bracket link 16 is hingedly fitted with the side brace 11, and the bottom end of the bracket link 16 is hingedly fitted with a standing support 82.
  • the footrest telescopic assembly includes a footrest first link 181 and a footrest second link 182, a footrest third link 183 and a footrest fourth link 184, a footrest front support 185, a footrest
  • the trailing ends of the footboard driving rod 187, the first footrest link 181 and the second footrest link 182 are hingedly engaged with the front end of the side support 11, and the tail end of the third footrest link 183 and the first footrest link 181
  • the front end of the footrest is hingedly engaged
  • the rear end of the fourth footrest link 184 is hingedly engaged with the front end of the second footrest link 182, the front end of the third footrest link 183, the front end of the fourth footrest link 184 and the front support of the footrest 185 is hingedly matched
  • a footrest rotation pin 186 is provided in the middle of the first footrest link 181, a middle part of the footrest fourth link 184 is hingedly engaged with the footrest rotation pin 186, and
  • the iron frame for the station-assisted recliner further includes an armrest bracket 3.
  • the armrest bracket 3 includes an armrest bracket cross brace 31 and armrest bracket lateral braces 32 fixed at both ends of the armrest bracket brace 31.
  • the armrest bracket lateral brace 32 An armrest link 17 is provided inside the front portion of the front portion, one end of the armrest link 17 is hingedly engaged with the armrest side support 32, and the other end is hingedly engaged with the outside of the side support 11, and both ends of the armrest support cross 31 are placed in the middle of the side support 11 Below, the two ends of the armrest bracket cross brace 31 are welded and fixed to the auxiliary station connecting rod 8, and the two ends of the armrest bracket cross brace 31 are fixedly provided with push links 33.
  • the side brace drive assembly includes a first A-shaped distribution The link 141 and the second link 142, the top end of the first link 141 is hingedly engaged with the side stay 11, the tail end of the first link 141 is hingedly engaged with the bottom end of the second link 142, The top end is hingedly fitted with the rear connecting end 133, the middle portion of the first link 141 is hingedly fitted with the bottom end of the push link 33, and the armrest support cross 31 is placed between the push link 33 and the first link 141 to rotate
  • the connecting rod 13 can drive the second connecting rod 142 to move, so that the rotating rod 2 can drive the side support driving assembly, Condensing holder 1 is moved.
  • a first connecting frame 21 and a second connecting frame 22 are provided in the middle of the rotating rod 2, the front end of the first electric push rod 24 is hingedly engaged with the first connecting frame 21, and the rear end of the first electric push rod 24 is coupled with the inclined support 52
  • the hinge bracket 54 on the upper part is hinged to cooperate, so that the first electric push rod is inclinedly arranged between the rotating rod and the inclined bracket, an auxiliary station stop 83 is arranged on the inner side of the standing support 82, and an auxiliary station is arranged on the lower side of the end of the rotating rod 2
  • the auxiliary station bracket 23 adapted to the stop 83, and the rear end of the auxiliary station connecting rod 8 is further provided with a rotary lever limit stop 81, and the auxiliary station stop 83 and the rotary lever limit stop 81 limit the rotary lever.
  • the backrest telescopic assembly includes a backrest first link 121, a backrest second link 122, and a backrest third link 123.
  • the bottom end of the backrest first link 121 is hingedly engaged with the tail end of the side support 11, and the backrest first link 121
  • the top end of the backrest is hingedly engaged with the front end of the second link 122 of the backrest, and the rear end of the second link 122 of the backrest is hingedly engaged with the top end of the third link 123 of the backrest.
  • the middle part of the backrest support 124 is provided with a backrest connecting bracket 125, the front end of the second electric push rod 25 is hingedly fitted with the second connecting frame 22, and the rear end of the second power pusher 25 is connected with the backrest connecting bracket 125 in the middle of the backrest crossbar 124 It is hinged and matched so that the second electric push rod can drive the backrest telescoping assembly to expand and contract.
  • the first electric push rod 24 When assembling, the first electric push rod 24 is in the initial state, the footrest telescopic assembly is in the retracted state, the tilt bracket 5 and the bottom frame 6 are horizontally set; when the first electric push rod 24 is retracted, the rotation lever 2 moves toward the rotation lever limit stop Moving in the direction of 81, the rotating rod 2 drives the footrest telescopic assembly to expand to form a lying state; when the rotating rod 2 moves until the rotating rod 2 contacts the rotating rod limit stop 81, the footrest telescopic assembly no longer extends, the first electric push When the rod 24 continues to contract, the first electric push rod 24 pulls the rear end of the tilt bracket 5 upward, so that the front end of the tilt bracket 5 forms a support, and the front end of the bottom chassis 6 tilts up, forming a tilted lying state; the first electric push rod When 24 is extended, the tilting bracket 5 and the footrest telescopic assembly are reset, and the first electric push rod 24 continues to extend obliquely upward so that the auxiliary
  • the working method of the iron stand for the auxiliary station chair includes the following steps:
  • A. Sitting position The first electric push rod 24 is in the initial state, the tilting bracket 5 and the bottom frame 6 are in the horizontal state, and the telescopic assembly of the footrest is in the retracted state, which can realize the sitting position, as shown in FIG. 2.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dentistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

La présente invention concerne une crémaillère en fer utilisée pour un fauteuil inclinable d'aide au maintien et un procédé de fonctionnement associé, la crémaillère en fer utilisée pour un fauteuil inclinable d'aide au maintien comprenant un support incliné (5), une crémaillère de base (6), un support d'extension (1), une barre rotative (2), un ensemble crémaillère supérieure et une première barre de poussée électrique (24) ; deux côtés d'une partie centrale du support incliné (5) sont articulés et coopèrent avec la crémaillère de base (6) de sorte qu'une extrémité de queue du support incliné (5) chevauche une extrémité de queue de la crémaillère de base (6) ; une extrémité avant de la crémaillère de base (6) chevauche une extrémité avant du support incliné (5) ; une extrémité de queue de l'ensemble crémaillère supérieure est articulée et coopère avec l'extrémité de queue de la crémaillère de base (6) ; la barre rotative (2) est disposée au-dessus d'une extrémité avant de l'ensemble crémaillère supérieure, et deux extrémités de la barre rotative (2) entraînent le support d'extension (1) et coopèrent avec ce dernier ; une extrémité avant de l'ensemble crémaillère supérieure est dotée d'un bloc d'arrêt d'aide au maintien (83), et un côté inférieur d'une partie d'extrémité de la barre rotative (2) est doté d'un support d'aide au maintien (23) qui s'adapte au bloc d'arrêt d'aide au maintien (83) ; une partie de queue de l'ensemble crémaillère supérieure est en outre dotée d'un bloc d'arrêt de limitation de barre rotative (81) ; une extrémité avant de la première barre de poussée électrique (24) est articulée et coopère avec une partie centrale de la barre rotative (2), et une extrémité de queue de la première barre de poussée électrique (24) est articulée et coopère avec l'extrémité de queue du support incliné (5) de sorte que la première barre de poussée électrique (24) est agencée obliquement entre la barre rotative (2) et le support incliné (5).
PCT/CN2019/114517 2018-11-02 2019-10-31 Crémaillère en fer utilisée pour un fauteuil inclinable d'aide au maintien et procédé de fonctionnement associé WO2020088553A1 (fr)

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CN116982815A (zh) 2023-11-03
CN117257077A (zh) 2023-12-22

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