WO2020232839A1 - Siège - Google Patents

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Publication number
WO2020232839A1
WO2020232839A1 PCT/CN2019/099880 CN2019099880W WO2020232839A1 WO 2020232839 A1 WO2020232839 A1 WO 2020232839A1 CN 2019099880 W CN2019099880 W CN 2019099880W WO 2020232839 A1 WO2020232839 A1 WO 2020232839A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
back frame
frame
flexible member
seat frame
Prior art date
Application number
PCT/CN2019/099880
Other languages
English (en)
Chinese (zh)
Inventor
王大秋
周骏
Original Assignee
浙江胜途家具科技有限公司
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 浙江胜途家具科技有限公司 filed Critical 浙江胜途家具科技有限公司
Publication of WO2020232839A1 publication Critical patent/WO2020232839A1/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
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03277—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs
    • 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
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03205—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination
    • 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
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03255—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs
    • 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
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • 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
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03294—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers
    • 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
    • A47C7/02—Seat parts
    • A47C7/025—Springs not otherwise provided for in A47C7/22 - A47C7/35
    • 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
    • A47C7/402—Support for the head or the back for the back adjustable in height
    • 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
    • A47C7/48—Support for the head or the back for the back of freely-rotatable type

Definitions

  • the present invention provides an ergonomic seat with a reclining adaptive gravity adjustment function that has simple operation, simple structure, high stability, good safety, and good comfort.
  • the purpose of the present invention is to provide an ergonomic seat with a reclining adaptive gravity adjustment function with simple operation, simple structure, high stability, good safety and good comfort.
  • a virtual four-bar linkage mechanism is formed by the four rotation points formed between the seat frame, the back frame and the connecting seat, which realizes the functions of the back frame backward, the seat frame backward and upward, and the back frame reset, the seat frame forwards, Lowering function; at the same time, three of the four turning points are the actual turning points.
  • the overall seat is mostly rigid or slightly tough, which greatly reduces the material requirements without considering its deformation factors, and at the same time it is firm Good, and better support for users.
  • the side of the first seat frame includes an upper support rod, a lower support rod, and a second flexible member that can be elastically deformed and reset and rebound under the action of an external force.
  • the upper and lower ends of the second flexible member are respectively connected to The front end of the upper support rod and the front end of the lower support rod are connected.
  • the first flexible member is provided with a forward bending opening, and the bending is located in the gap between the rear end of the seat frame and the front surface of the back frame; when the back frame receives a backward force, the first bending A flexible piece deforms, which makes the opening at the bend larger. When the back frame receives a gradually reduced force, the first flexible piece gradually resets and rebounds, and the shape of the opening at the bend gradually decreases until it returns to the original status.
  • the seat frame and the back frame are connected through the first flexible member and the three form a coherent curved surface structure, and an integrated cloth layer can be arranged on the top frame, which has good integrity, good comfort, simple and beautiful appearance.
  • the contact area between the middle and rear part of the upper surface of the seat frame and the middle and lower part of the front surface of the back frame and the user is relatively small, which can avoid affecting the rebound reset and cushioning effect of the first flexible member .
  • the lower support rod is provided with a limiting protrusion at the rear
  • the front of the connecting seat is provided with a limiting groove for accommodating the limiting protrusion
  • the limiting protrusion is accommodated in the limiting groove and both
  • the hinged connection forms the third rotation point, and there is a limit gap in the limit groove for rotating the limit protrusion.
  • the bottom of the first back frame side is sequentially bent forward to form a first bending part, and upward to form a second bending part, and the first back frame side is a hook-shaped structure with an upward opening as a whole;
  • the upper part of the two bending parts forms a first turning point, and the lower part forms a second turning point.
  • the side of the first back frame is a hook-like structure with an opening upward as a whole to realize the functions of lifting the seat frame when the back frame is tilted back and lowering the seat frame when the back frame is reset.
  • the back frame is The second turning point is the axis rotation and tilting backward.
  • the second turning point turns backward while driving the first turning point to turn backward.
  • the hook structure on the side of the first back frame can make the height of the first turning point higher. , The angle between the upper support rod and the lower support rod becomes larger, the upper support rod is raised, and the seat frame is raised.
  • the first flexible member is L-shaped or V-shaped as a whole, and includes a flexible portion a, a flexible portion b, and a bend formed between the flexible portion a and the flexible portion b;
  • a tough flexible material, the first flexible part adopts a toughened flexible material, and the angle of the opening at the bend can be increased from 40-48° in the initial state to 60°-80°.
  • the L-shaped or V-shaped shape is to reflect the bending structure of the first flexible part, so that the back frame, the seat frame deformation and the resetting process of the two are more stable;
  • the first flexible part is made of toughened flexible material, because the first flexible part A flexible part has a high frequency of bending changes, so the use of toughened flexible materials can prevent the first flexible part from being unrecoverable after frequent deformation, so that it has a better elastic reset effect and prolongs its service life;
  • the bending angle can be Increased from 40-48° in the initial state to 60°-80°, effectively ensuring the comfort and stability of the back frame, the seat frame up and the reset.
  • the second flexible member is curved; the second flexible member is made of a toughened flexible material, and the angle of the curved second flexible member can be increased from 35° to 42° in the initial state to 45° ⁇ 60°.
  • a seat frame support is connected between the first seat frame side and the second seat frame side
  • a back frame support is connected between the first back frame side and the second back frame side.
  • the connecting seat is a chassis, and a supporting air rod and a supporting base are fixedly connected to the lower part of the chassis in sequence.
  • the invention provides an ergonomic seat with a reclining adaptive gravity adjustment function that is simple in operation, simple in structure, high in stability, good in safety and comfortable.
  • the invention realizes the backward and resetting of the back frame by combining the set simple kinematic chain mechanism and the assistance of the first flexible member, and can automatically adjust the user's backward force according to the user's own weight, and realize the backward adaptive gravity adjustment Function and ergonomics, among them, the first seat frame side and the second seat frame side are set in a U-shape, which provides a structural foundation for the kinematic chain mechanism and provides deformation space;
  • the seat frame Under the action of the kinematic chain mechanism, when the back frame is subjected to a backward force, the seat frame is raised backward and height, and the first flexible member deforms and presents a tendency to bend and expand; when the back frame is subjected to backward action When the force gradually decreases, the seat frame gradually moves forward and the height decreases, and the first flexible member gradually resets and rebounds until it returns to the initial state.
  • the operation is simple and the structure is simple; at the same time, the seat frame and the back frame are connected by the first flexible member, The seat frame and the back frame are more integrated. On the one hand, it helps to realize the back frame and resetting, and on the other hand, it increases the stability and comfort when tilting back, and reduces the feeling of back rubbing.
  • the first flexible member will also be deformed when the back frame is leaning back, so that it has a certain buffering effect during the back frame, which is comfortable, stable, stable, and safe.
  • the force on the back frame is gradually reduced.
  • the first flexible member has resilience, the back frame can be better reset.
  • the first flexible member also has the function of supporting the user's waist and back, which is comfortable and firm. Better sex.
  • Figure 1 is a schematic diagram of the structure of the seat, back frame, and connecting seat in embodiment 1 after being matched;
  • Fig. 2 is a schematic diagram of an enlarged structure of part A in Fig. 1;
  • Figure 3 is a schematic diagram of the structure of the back frame
  • Fig. 4 is a schematic diagram of an enlarged structure of part B in Fig. 3;
  • Fig. 5 is a schematic diagram of the structure of part C in Fig. 3;
  • Figure 6 is a schematic diagram of the structure of the first flexible member
  • Figure 7 is a schematic diagram of the structure of the seat frame
  • Figure 8 is another structural schematic diagram of the seat frame
  • Figure 12 is a schematic diagram of the structure of the seat as a whole and only acting on the seat frame;
  • Figure 13 is a schematic diagram of the structure of the seat as a whole while acting on the back frame and the seat frame at the same time;
  • FIG. 15 is a schematic view of the structure of FIG. 13 in a moving state.
  • This embodiment relates to the reference orientation of each component, such as up, down, front, back, etc., which are described from the perspective of the user sitting behind the seat; among them, the following first seat frame side 110 and second seat
  • the frame side 120 is arranged symmetrically, and the first back frame side 210 and the second back frame side 220 are arranged symmetrically. Therefore, the following descriptions such as the first rotation point 410, The second rotation point 420, the third rotation point 430, and the virtual tough fourth rotation point 440 are also set symmetrically.
  • a seat as shown in Figures 1-15, includes:
  • the seat frame 100 has a first seat frame side 110 and a second seat frame side 120 that are symmetrically arranged. Both the first seat frame side 110 and the second seat frame side 120 are U-shaped with an opening facing back; the first seat A seat frame support 150 is connected between the frame side 110 and the second seat frame side 120;
  • the first flexible member 500 which can be elastically deformed and resettable under external force, is made of toughened flexible material, and its two ends are respectively connected with the upper surface 130 of the seat frame and the front surface 230 of the back frame to form a coherent curved surface Structure, and an integrated cloth layer is connected to the continuous curved structure;
  • the first flexible member 500 is L-shaped as a whole, specifically, as shown in FIG. 6, includes a flexible portion a530, a flexible portion b540, and a A forward bend 510 is opened between the flexible portion a530 and the flexible portion b540.
  • the bend 510 is located in the gap between the rear end of the seat frame 100 and the front surface 230 of the back frame.
  • the opening at the bend 510 becomes larger.
  • the first flexible member 500 gradually resets and rebounds, and the shape of the opening at the bend gradually becomes Decrease until it returns to the initial state, the angle of the bending 510 can be increased from 40-48° in the initial state to 60°-80°.
  • connection a140 of the first flexible member 500 and the seat frame 100 is located in the middle and rear of the upper surface 130 of the seat frame
  • connection b240 of the first flexible member 500 and the back frame 200 is located on the front surface 230 of the back frame.
  • the two ends of the first flexible member 500 are provided with connecting holes G520. After the screws pass through the connecting holes G520 at both ends, the two ends of the first flexible member 500 are respectively fastened at the connection a140 and the connection b240.
  • the seat frame 100 Under the action of the kinematic chain mechanism 400, when the back frame 200 receives a backward force, the seat frame 100 is rearwardly and highly elevated, the first flexible member 500 is deformed, and the opening at the bend tends to expand; When the frame 200 is gradually reduced by the backward force, the seat frame 100 gradually moves forward and decreases in height, and the first flexible member 500 gradually resets and rebounds until it returns to the initial state.
  • the kinematic chain mechanism 400 includes a virtual four-bar linkage mechanism formed by a first turning point 410, a second turning point 420, a third turning point 430, and a virtual tough fourth turning point 440 that are connected end to end.
  • the first seat frame side 110 includes an integrally formed rigid upper support rod 111, a rigid lower support rod 112, and a softer second flexible member 113 that can be elastically deformed under external force and can be reset and rebounds.
  • the second flexible member 113 is curved, and its upper and lower ends are respectively connected to the front end of the upper support rod 111 and the front end of the lower support rod 112; the second flexible member 113 is specifically made of a toughened flexible material.
  • the angle of 113 can be increased from 35° ⁇ 42° in the initial state to 45° ⁇ 60°.
  • the rear part of the upper support rod 111 and the lower part of the first back frame side 210 are hinged to form a first turning point 410
  • the lower part of the first back frame side 210 and the rear part of the connecting seat 300 are hinged to form a second turning point 420
  • the rear part of the lower support rod 112 and the front part of the connecting seat 300 are hinged to form a third turning point 430
  • a virtual tough fourth turning point 440 is formed on the second flexible member 113; wherein, as shown in FIG.
  • the connecting line d480 between the four rotation points 440 and the first rotation point 410 is connected end to end to form a kinematic chain mechanism 400 of a virtual four-bar linkage mechanism that realizes the back frame 200 reclining and resetting.
  • the connecting hole A410b at the rear of the upper support rod 111 and the connecting hole B410a at the lower part of the first back frame side 210 are hinged to form a first pivot point 410
  • the connecting hole C420a at the lower part of the first back frame side 210 and The connecting hole D420b at the rear of the connecting seat 300 is hinged to form a second rotation point 420
  • the connecting hole E430a at the rear of the lower support rod 112 and the connecting hole F430b at the front of the connecting seat 300 are hinged to form a third rotating point 430.
  • a virtual flexible fourth pivot point 440 is formed on the second flexible member 113.
  • the lower support rod 112 is provided with a limiting protrusion 1121 at the rear, and a limiting groove 310 is provided at the front of the connecting seat 300 to accommodate the limiting protrusion 1121, and the limiting protrusion 1121 is accommodated in the limiting groove In 310 and the two are hingedly connected to form the third rotation point 430, and there is also a limiting gap in the limiting groove 310 for the limiting protrusion 1121 to rotate.
  • the bottom of the first back frame side 210 is sequentially bent forward to form a first bending portion 211, and upward to form a second bending portion 212.
  • the first back frame side 210 is a hook-shaped structure with an upward opening as a whole;
  • the upper part of the second bending portion 212 forms a first turning point 410, and the lower part forms a second turning point 420.
  • the first flexible member 500 is bent
  • the outer side of the 510 is fitted with a triangular-shaped flexible anti-pinch hand piece 1000.
  • the anti-pinch piece 1000 includes a side a1100 fitted to the outer side surface of the bend 510 and a side b1200 fitted to the back frame 200.
  • the flexible anti-pinch member 1000 can prevent the fingers from being pinched, and will not affect the deformation and reset of the first flexible member 500.
  • the point E is the point of the center of gravity of the human body, that is, downward pressure, acting on the seat frame 100, and the point F is acting on the back frame when the human body leans back. 200 force and stress point;
  • the strength of the 200F point of the back frame is affected by the size of its own weight. If the body is large, the force on the 200F point of the back frame will be large, and the small weight will affect the 200F point of the back frame. The force will be small;
  • the back frame 200 When the human body starts to lean forward, the force on the back frame 200 is gradually reduced, the back frame 200 is reset forward under the action of the kinematic chain mechanism and the first flexible member 500, and the seat frame 100 is forward and lowered in height; further In other words, when the human body is far away from the back frame 200 and only sitting on the seat frame 100, only the point E of the center of gravity of the person acting on the seat frame 100 is generated. Under the elastic reset action of the kinematic chain mechanism 400 and the first flexible member 500 , The back frame 200 is reset forward, and the height of the seat frame 100 is reduced.

Abstract

La présente invention concerne un siège comprenant un cadre de siège (100) présentant un premier côté de cadre de siège (110) et un second côté de cadre de siège (120) qui sont agencés symétriquement ; un cadre arrière (200), dont la partie inférieure est raccordée au cadre de siège (100), présentant un premier côté de cadre arrière (210) et un second côté de cadre arrière (220) qui sont symétriquement agencés ; une base de raccordement (300) raccordée à la partie inférieure du cadre de siège (100) et à la partie inférieure du cadre arrière (200), la base de raccordement (300), la partie inférieure du cadre de siège (100) et la partie inférieure du cadre arrière (200) étant raccordées ensemble pour former un mécanisme de chaîne cinématique (400) ; et un premier élément flexible (500), dont deux extrémités sont raccordées au cadre de siège (100) et au cadre arrière (200) respectivement, qui sont aptes à se déformer élastiquement et à être réinitialisées et à rebondir sous l'effet d'une force externe. Sous l'effet du mécanisme de chaîne cinématique (400), lorsque le cadre arrière (200) est soumis à une force d'action vers l'arrière, le cadre de siège (100) se déplace vers l'arrière et est soulevé, le premier élément flexible (500) se déforme et une ouverture au niveau d'un coude est étendue ; lorsque la force d'action vers l'arrière appliquée au cadre arrière (200) est progressivement réduite, le cadre de siège (100) se déplace progressivement vers l'avant et est abaissé, et le premier élément flexible (500) se réinitialise et rebondit progressivement jusqu'à ce qu'il revienne à un état initial. Le fonctionnement est simple et la structure est simple.
PCT/CN2019/099880 2019-03-28 2019-08-09 Siège WO2020232839A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201920411853 2019-03-28
CN201910417100.7 2019-05-20
CN201910417100.7A CN110123054A (zh) 2019-03-28 2019-05-20 一种座椅

Publications (1)

Publication Number Publication Date
WO2020232839A1 true WO2020232839A1 (fr) 2020-11-26

Family

ID=67571295

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/099880 WO2020232839A1 (fr) 2019-03-28 2019-08-09 Siège

Country Status (2)

Country Link
CN (2) CN110123054A (fr)
WO (1) WO2020232839A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11357329B2 (en) * 2019-12-13 2022-06-14 Steelcase Inc. Body support assembly and methods for the use and assembly thereof
DE102020110707A1 (de) * 2020-04-20 2021-10-21 Bock 1 Gmbh & Co. Kg Sitzmöbel

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6709058B1 (en) * 1999-04-09 2004-03-23 Humanscale Corp. Ergonomic chair
DE202004016744U1 (de) * 2004-10-28 2005-02-03 BRÜSKE, Joachim Bürostuhl
CN1933749A (zh) * 2003-12-30 2007-03-21 Hni技术公司 具有向后和向前被动倾斜性能的椅子
CN107788733A (zh) * 2016-09-01 2018-03-13 永艺家具股份有限公司 一种座椅支撑结构及座椅
CN107788732A (zh) * 2016-09-01 2018-03-13 永艺家具股份有限公司 一种座椅结构及座椅
CN208658322U (zh) * 2018-02-07 2019-03-29 深圳市华仕杰家居用品有限公司 椅背腰靠联动机构

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6709058B1 (en) * 1999-04-09 2004-03-23 Humanscale Corp. Ergonomic chair
CN1933749A (zh) * 2003-12-30 2007-03-21 Hni技术公司 具有向后和向前被动倾斜性能的椅子
DE202004016744U1 (de) * 2004-10-28 2005-02-03 BRÜSKE, Joachim Bürostuhl
CN107788733A (zh) * 2016-09-01 2018-03-13 永艺家具股份有限公司 一种座椅支撑结构及座椅
CN107788732A (zh) * 2016-09-01 2018-03-13 永艺家具股份有限公司 一种座椅结构及座椅
CN208658322U (zh) * 2018-02-07 2019-03-29 深圳市华仕杰家居用品有限公司 椅背腰靠联动机构

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