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WO2018041256A1 - 一种座椅结构及座椅 - Google Patents

一种座椅结构及座椅 Download PDF

Info

Publication number
WO2018041256A1
WO2018041256A1 PCT/CN2017/100291 CN2017100291W WO2018041256A1 WO 2018041256 A1 WO2018041256 A1 WO 2018041256A1 CN 2017100291 W CN2017100291 W CN 2017100291W WO 2018041256 A1 WO2018041256 A1 WO 2018041256A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
base
structure according
seat support
disposed
Prior art date
Application number
PCT/CN2017/100291
Other languages
English (en)
French (fr)
Inventor
金明华
夏敬智
阮正富
Original Assignee
永艺家具股份有限公司
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 永艺家具股份有限公司 filed Critical 永艺家具股份有限公司
Priority to KR1020187008934A priority Critical patent/KR102270286B1/ko
Priority to EP17845558.0A priority patent/EP3508095B1/en
Priority to JP2018517299A priority patent/JP6641000B2/ja
Publication of WO2018041256A1 publication Critical patent/WO2018041256A1/zh
Priority to US16/051,510 priority patent/US10595636B2/en

Links

Classifications

    • 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
    • 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
    • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03272—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil 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
    • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03272—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs
    • A47C1/03274—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs of torsion type
    • 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
    • A47C1/036—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a head-rest
    • 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
    • A47C7/024—Seat parts with double seats
    • 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
    • A47C7/14—Seat parts of adjustable shape; elastically mounted ; adaptable to a user contour or ergonomic seating positions
    • 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
    • A47C7/28—Seat parts with tensioned springs, e.g. of flat type
    • A47C7/282—Seat parts with tensioned springs, e.g. of flat type with mesh-like supports, e.g. elastomeric membranes
    • 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
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/02—Rocking chairs
    • A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
    • A47C3/026—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame with central column, e.g. rocking office chairs; Tilting chairs
    • 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
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/443—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with coil springs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S297/00—Chairs and seats
    • Y10S297/07—Rocker/recliner

Definitions

  • the present invention relates to the technical field of seats, swivel chairs, office chairs, and the like, and more particularly to a seat structure and a seat.
  • the swivel chair chassis also known as the swivel chair tray, is an important part under the swivel seat cushion. The lifting of the seat cushion and the tilting angle adjustment of the backrest are all done by the chassis.
  • Cipheral Patent Document (Announcement Date: On December 24, 2014, the announcement number: CN104223821A) discloses a swivel chair chassis including a base, a bracket and a rocker.
  • the bracket is disposed in the base, the rocker is disposed in the bracket, and the rocker is at the first pin.
  • the first pin shaft passes through the bracket and is connected with the base, the front portion of the rocker swings the bracket through the first link and the second link, and the first link and the second link are hinged through the third pin shaft
  • the third pin is connected to the bracket, the second link is inserted with the second pin and the second pin passes through or avoids the bracket and is connected to the base, and the track slot is symmetrically opened on both sides of the bracket,
  • a pin is threaded into the track slot
  • the chassis further includes an elastic returning device that enables the carrier to return to its original position after the rocker flaps the carriage.
  • the first pin, the second pin, the third pin, the fourth pin, the rocker, the first link, and the second link of the patent form a four-point linkage mechanism to form a force transmission.
  • the back of the seat is fixed to the rocker as the driving force of the four-point linkage mechanism, and the gravity applied by the human body to the seat is formed by the third pin hinged to the bracket to form a restoring force applied to the four-point linkage mechanism, four points
  • the driving force and the restoring force of the rod mechanism form a confrontational relationship.
  • the angle between the second link of the four-point linkage mechanism and the acute angle of the horizontal line is gradually reduced, and the rotational force component of the bracket applied to the second link is increased, thereby implementing gravity loading.
  • the restoring force torque is gradually increased, which is opposed to the gradually increasing driving force.
  • the restoring force is less dependent on the elastic restoring force of the elastic resetting device, and is applicable to a wider range of people, and the weight is lighter or heavier. People can easily lean back and get up, so the right match can be achieved for everyone of different weights.
  • Chinese Patent Document (Announcement Date: October 7, 2015, Publication No.: CN103108572B) discloses a tilt mechanism for a chair including a base, a backrest bracket configured to support a chair backrest, and a backrest bracket configured to be used
  • a connecting device connected to the base.
  • the connecting device includes a rail and a guide.
  • One of the rail and the guide is provided on a portion of the backrest bracket that extends from the backrest joint portion to the pivotal connection portion at which the backrest bracket can be hinged to the seat.
  • the other of the rail and the guide is provided on the base.
  • the above technical solution is to avoid the need for a component extending on the rear side of the chair back and across a significant portion of the chair back, while providing a chair for achieving various comforts for achieving comfort.
  • a tilting mechanism that coordinates the movement of the backrest and the seat.
  • the realization of the technical solution is realized by lifting the entire seat back.
  • the overall structural design is relatively complicated. For the user, the strength of the reclining needs to be large enough, and this solution cannot be suitable for all people to use; It is this kind of seat that is not aesthetically pleasing, does not meet the needs of modern streamlined aesthetics, and is not convenient to configure the full mesh of the back of the chair and the seat, which can only be set separately from the back mesh and the seat net. .
  • the object of the present invention is to overcome the deficiencies in the prior art described above, and to provide a simple structure and a beautiful appearance, and realize the realization of the chair on the basis of the full mesh cloth which is convenient to arrange the back of the chair and the seat.
  • the seat structure that lifts the front and rear of the seat back and back and its application on the seat.
  • the seat structure can be used by people of different populations and different weights, and not only solves the problem that the waist strength is large enough when the whole seat is lifted in the past, and the user feels uncomfortable, thereby improving the use of different human bodies. Comfort; and throughout the process, any user can easily lean back and get up and find comfort in different locations.
  • a seat structure comprising:
  • a base configured to be coupled to the chair base assembly
  • the seat support member is disposed above the base, and the front portion of the seat support member and the front portion of the base are rotatably connected via a transition link;
  • a seat back assembly pivotally coupled to the rear of the base
  • a lever driving member coupled between the seat back assembly and the seat support member, and the lever driving member is rotatably coupled to the rear portion of the seat support member, the lever driving member and the seat support member are substantially in the same plane;
  • the seat structure forms a four-link lever link arm structure by providing a seat support member, a seat back assembly and a lever drive member that are rotationally coupled to the front portion of the base through the transition link.
  • the base is fixed, and the force exerted by the human body on the seat back assembly is transmitted between the rotationally connected lever driving member and the seat back assembly and the seat support member, thereby driving the seat support member to be up and down on the base. Lift up and then tilt forward and backward.
  • the lever driving member is substantially parallel to the base, and the lever driving member and the seat supporting member are substantially in the same plane, so that the seat back assembly is integrated into the seat, which is convenient for arranging a whole mesh, that is, The mesh can be connected from top to bottom to avoid separation.
  • the seat structure can be applied to anyone, and there is no limitation in the material to be manufactured. When different users use it, it is easy to lean back and lean forward without applying a force to lift the entire seat. Because the magnitude of the force of the backward pressure of different users is different, the force transmission between the seat back component and the lever driving component is different, and thus the seat support lifting and the magnitude of the front and rear tilting are different, which can satisfy different people. Full comfort requirements.
  • the seat back assembly comprises a connecting member and a bracket
  • the connecting member is pivotally connected to the rear portion of the base by a pivot
  • the bracket comprises a back frame upper bracket and a left and right sides of the bracket on the back frame a lower extending side bracket
  • the lever driving member is two symmetrical sides
  • the lever driving member is formed by a middle portion of the side bracket extending forward
  • the lower ends of the two side brackets meet toward the center and extend forward and connect
  • the seat support member includes two support rods symmetrical on the left and right sides, the rear portions of the two support rods are respectively rotatably connected with the two lever driving members, and the front portions of the two support rods are integrally connected by the cross rod; the lever driving member and the support rod It is roughly connected to a straight line. In this way, the integrated back and seat are formed, which is convenient for the mesh.
  • the front end of the seat support member is bent downwardly and backwardly to extend into a human body sitting position structure, and the seat support member is rotatably connected to the base body in a frame structure.
  • the structure of the seat support member satisfies both the requirements of the sitting posture of the human body and the forward tilting and reclining.
  • one end of the seat support member connected to the transition link is provided with a first limiting structure
  • the base is provided with a second limiting structure at a rotational connection of the transition link.
  • the limiting structure can play a limit function when the transition link rotates, and prevent the movement stroke from being excessive; further, in the initial state, the limiting structure can form an effective support for the seat support to prevent collapse.
  • the first limiting structure is a curved limiting protrusion.
  • the second limiting structure is an arc-shaped limiting protrusion or a limiting pin or a limiting tooth.
  • the base comprises a bottom plate and two side plates, and the bottom plate is arranged in an arc shape in the longitudinal direction of the front and rear.
  • the connecting member is disposed in a U-shaped structure, and the front end of the connecting member cooperates with the inner and outer ends of the rear end of the base and is rotatably connected.
  • the two sides of the connecting member and the base are respectively provided with pivoting holes, and the connecting member and the base are pivotally connected by being disposed inside the pivoting hole.
  • the connecting member and the base are rotatably connected by the pivoting shaft, and the forward and backward tilting of the seat back assembly is realized under the driving of the lever driving member, which satisfies the need for the human body to lean forward and backward.
  • a fixed length hole is disposed on one of the base or the connecting member, and a limited positioning shaft is disposed on the corresponding one, and the limiting long hole is disposed in front of the pivoting hole, and the connecting member passes through the limit
  • the bit axis realizes the guiding limit of the front and rear warping; the rotation of the connecting member is maintained at an appropriate angle.
  • the two sides of the connecting member are provided with a fixed engaging structure on the rear side of the connecting bracket.
  • a reset device is disposed between the base and the connecting member.
  • said resetting means is at least one return compression spring.
  • the reset compression spring is disposed inside the base, and the reset compression spring can be selected according to the magnitude of the resetting force, but the number of the reset spring is hidden in the base, so that the entire seat is beautiful in appearance and convenient to reset.
  • the reset compression spring is disposed in a space enclosed by the base and the connecting member, and two ends of the return compression spring are respectively connected to the base and the connecting member.
  • the reset compression spring is disposed in the space enclosed by the base and the connecting member, and does not occupy additional space, so that the overall shape of the seat is more beautiful.
  • a pin is disposed on each of the base and the connecting member, and two ends of the returning spring are respectively connected to the pin on the base and the connecting member.
  • the two pin shafts are respectively disposed on the base and the connecting member.
  • the reset pressure spring comprises a compression spring body and a connecting seat disposed at two ends of the pressure spring body, and the connecting seat is provided with a shaft hole, and the pin shaft is disposed In the shaft hole of the connector.
  • the lever drive member is integrally provided with the bracket.
  • the lever driving member may be a one-piece downwardly extending section of the bracket, and the backward tilting force of the human body is transmitted to the lever driving member through the bracket, and the lever driving member drives the seat supporting member to move forward and backward to realize the entire seat structure.
  • lever drive member is separately and fixedly connected to the bracket.
  • lever driving member may also be separately provided at the lower end of the bracket to drive the seat support member.
  • the lever drive member and the seat support are rotatably coupled by a set of links.
  • the connecting rod comprises a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are rotatably connected by a rotating shaft.
  • a fixed position hole is disposed on any one of the first link and the second link, and a limited position pin is disposed on the corresponding one.
  • the limiting pin shaft is inserted in the limiting hole, and the setting of the limiting structure can limit the front and rear tilting amplitude of the seat supporting member, so as to ensure that the user leans back and forth in a comfortable range.
  • a seat comprising:
  • a base assembly for supporting a seat structure
  • the mesh cloth is stretched from top to bottom on the seat back assembly, the lever driving member and the seat support member, and the mesh cloth is integrally connected from top to bottom.
  • a seat structure comprising:
  • a base configured to be coupled to the chair base assembly
  • the seat support member is disposed above the base, and the front portion of the seat support member and the front portion of the base are rotatably connected via a transition link;
  • a seat back assembly pivotally coupled to the rear of the base
  • a lever driving member coupled between the seat back assembly and the seat support member, and the lever driving member is rotatably coupled to the rear portion of the seat support member, the lever driving member and the seat support member are substantially in the same plane;
  • the return spring is longitudinally disposed between the seat back assembly and the base; the return spring generates a reaction force when the seat back assembly is rotated backward.
  • the return spring of the present solution is longitudinally disposed between the seat back assembly and the base such that the lever drive member directly applies a force upward when the lever drive member rotates, so that the return spring deformation provides a sufficient restoring force.
  • the return spring is disposed at a position forward of the pivot.
  • the return spring is completely concealed in the inner space of the base, so that the height space inside the base is fully utilized, and the outside of the seat is not protruded due to the arrangement of the return spring, and the appearance is not damaged.
  • the return spring is a compression spring.
  • the upper end of the base is provided with an upper limit plate, and the return spring is disposed between the lower end of the seat back assembly and the upper limit plate.
  • the upper end of the return spring is limited by the upper limit plate, so that the return spring is restrained in the height space in the base, does not protrude outward, and makes full use of the narrow space in the base.
  • the base comprises a bottom plate and two side plates extending upward from both sides of the bottom plate, the seat back assembly comprising a connecting piece and a bracket for the backrest, the connecting piece comprising left and right symmetrical end plates And connecting the connecting plates of the two end plates, wherein the end plate and the side plate are pivotally connected;
  • the upper limit plate is hingedly disposed on the two sides of the base by the lugs at both ends, and the lower limit plate is provided on the connecting member
  • the position plate, the lower limit plate is hingedly disposed with the end plate by the lugs at both ends, and the return spring is disposed between the upper limit plate and the lower limit plate.
  • the upper and lower limit plates are respectively hinged with the base and the connecting member, so that when the connecting member rotates, an adaptive angular rotation can be performed with the rotating arc of the connecting member, and the return spring also follows the movement to generate a corresponding angular change without generating Its own lateral distortion and deformation make it possible to fully exert its own elasticity and prolong its service life.
  • the return springs are at least two arranged side by side, and are oppositely disposed on the upper and lower limit plates.
  • the seat back assembly comprises a connecting member and a bracket
  • the connecting member is pivotally connected to the rear portion of the base by a pivot
  • the bracket comprises a back frame upper bracket and a left and right sides of the bracket on the back frame a lower extending side bracket
  • the lever driving member is two symmetrical sides
  • the lever driving member is formed by a middle portion of the side bracket extending forward
  • the lower ends of the two side brackets meet toward the center and extend forward and connect
  • the seat support member includes two support rods symmetrical on the left and right sides, the rear portions of the two support rods are respectively rotatably connected with the two lever driving members, and the front portions of the two support rods are integrally connected by the cross rod; the lever driving member and the support rod It is roughly connected to a straight line. In this way, the integrated back and seat are formed, which is convenient for the mesh.
  • the front end of the seat support member is bent downwardly and backwardly to extend into a human body sitting position structure, and the seat support member is rotatably connected to the base body in a frame structure.
  • the structure of the seat support member satisfies both the requirements of the sitting posture of the human body and the forward tilting and reclining.
  • one end of the seat support member connected to the transition link is provided with a first limiting structure
  • the base is provided with a second limiting structure at a rotational connection of the transition link.
  • the limiting structure can play a limit function when the transition link rotates, and prevent the movement stroke from being excessive; further, in the initial state, the limiting structure can form an effective support for the seat support to prevent collapse.
  • the first limiting structure is a curved limiting protrusion.
  • the second limiting structure is an arc-shaped limiting protrusion or a limiting pin or a limiting tooth.
  • the base comprises a bottom plate and side plates extending upwards on both sides of the bottom plate, and the two side plates of the connecting member and the base are respectively provided with pivot holes, and the pivot shafts are disposed in the pivot holes.
  • the connecting member and the base are rotatably connected by the pivoting shaft, and the forward and backward tilting of the seat back assembly is realized under the driving of the lever driving member, which satisfies the need for the human body to lean forward and backward.
  • a fixed length hole is disposed on one of the base or the connecting member, and a limited positioning shaft is disposed on the corresponding one, and the limiting long hole is disposed in front of the pivoting hole, and the connecting member passes through the limit
  • the bit axis realizes the guiding limit of the front and rear warping; the rotation of the connecting member is maintained at an appropriate angle.
  • the lever drive member and the seat support are rotatably coupled by a set of links.
  • the connecting rod comprises a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are rotatably connected by a rotating shaft.
  • a fixed position hole is disposed on any one of the first link and the second link, and a limited position pin is disposed on the corresponding one.
  • the limiting pin shaft is inserted in the limiting hole, and the setting of the limiting structure can limit the front and rear tilting amplitude of the seat supporting member, so as to ensure that the user leans back and forth in a comfortable range.
  • the lever drive member is integrally provided with the bracket.
  • the lever driving member may be a one-piece downwardly extending section of the bracket, and the backward tilting force of the human body is transmitted to the lever driving member through the bracket, and the lever driving member drives the seat supporting member to move forward and backward to realize the entire seat structure.
  • lever drive member is separately and fixedly connected to the bracket.
  • lever driving member may also be separately provided at the lower end of the bracket to drive the seat support member.
  • a seat comprising:
  • a base assembly for supporting a seat structure
  • the mesh cloth is stretched from top to bottom on the seat back assembly, the lever driving member and the seat support member, and the mesh cloth is integrally connected from top to bottom.
  • the invention firstly provides a seat structure integrally forming a closed-loop circular lever arm structure, that is, a seat back assembly, a seat support member, a transition link and a base of the lever driving member constitute a four-link
  • the base is fixed; when the seat back assembly rotates, the transition link and the front and rear portions of the seat support member are lifted by the lever driving member, and the driving force of the seat back assembly and the restoring force of the seat support member form a confrontation relationship, therefore, People who are lighter or heavier can easily lean back and regain their body to meet the comfort requirements of sitting posture.
  • the lever driving member is substantially parallel to the base, and the lever driving member and the seat supporting member are substantially on the same surface, so that the seat back assembly is integrally connected to the seat portion, and the mesh cloth can be conveniently arranged, that is, the mesh cloth can be Connected from top to bottom, avoiding separation and a more smooth appearance.
  • the seat structure of the present invention is provided with a base to provide a relatively stable support, and the seat support member is suspended, and the front end of the seat support member is rotatably connected with the front end of the base, and the seat back assembly is rotatably connected with the rear end of the base;
  • the back assembly rotates, the force is transmitted by the lever driving member, and the seat support member is lifted upward by the upward force, and the gravity applied by the human body to the seat support member forms the restoring force of the seat support member.
  • the driving force of the back assembly and the restoring force of the seat support form an antagonistic relationship, so that a person who is lighter or heavier can easily lean back and retire, and the applicable population is wider.
  • a reset device for assisting resetting the seat back assembly is provided, and the reset device is at least one reset compression spring.
  • the number of the reset compression springs can be set according to the body weight and the like, but due to the presence of the base, The number of resetting springs is several, and the resetting device is disposed in the space enclosed by the base and the connecting member, so that no additional space is occupied, so that the overall shape of the seat is more beautiful; the seat structure can be realized according to the force applied by different human bodies. Different degrees of backward tilt to meet the needs of different users.
  • the reclining force exerted by the human body on the seat back assembly is transmitted to the lever driving member through the seat back assembly, and the lever driving member driving seat support member is lifted up and moved backward.
  • the seat back assembly rotates back and forth around the base together with the connecting member, it reaches the backward tilt position.
  • the seat support member further presses the lever driving member to reset it under the gravity of the human body.
  • the seat support member returns to the original static position, that is, the initial position, and the applicable crowd is wider. According to the user, different resetting forces can be set, and then different back tilting forces can be applied, which is more versatile.
  • the present invention provides a gravity adaptive seat that is more user-friendly and more versatile without manual adjustment.
  • the back recoil restoring force is matched correspondingly, so that the weight is light or heavy. People can easily come back and get up.
  • the seat support member that is, the seat base
  • the seat support member also moves backwards following the rotation of the seat back, so that the back support of the back of the seat always conforms to the corresponding position of the back of the human body, thereby avoiding the support of the back of the seat back.
  • the waist of the human body creates a waist suspension, which also avoids friction between the clothes and the seat back.
  • Figure 1 is a schematic structural view of a seat structure of the present invention
  • Figure 2 is a schematic view showing the structure of the seat structure of the present invention at another angle
  • Figure 3 is a view showing the original state of the one-side structure of the seat structure of the present invention.
  • Figure 4 is a rear elevational view of the one-side structure of the seat structure of the present invention.
  • Figure 5 is a cross-sectional view showing the one-side structure of the seat structure of the present invention in a back state
  • Figure 6 is a schematic structural view of the seat structure of the present invention in a backward tilt state
  • Figure 7 is a schematic structural view of a compression spring of the present invention.
  • Figure 8 is an exploded view of the compression spring of the present invention.
  • Figure 9 is a second structural schematic view of the seat structure of the present invention.
  • Figure 10 is a still plan view of a second seat structure of the present invention.
  • Figure 11 is a rear elevational view of the second seat structure of the present invention.
  • Figure 12 is a view showing the original state of the one-side structure of the second seat structure of the present invention.
  • Figure 13 is a rear elevational view of the one-side structure of the second seat structure of the present invention.
  • Figure 14 is a view showing a stationary state of a second seat structure of the present invention.
  • Figure 15 is a rear elevational view of the second seat structure of the present invention.
  • Figure 16 is a perspective view showing the structure of the seat in the third embodiment.
  • Figure 17 is a schematic view showing the internal planar structure of the seat in the third embodiment.
  • Figure 18 is a schematic view showing the connection structure of the connecting member and the base and the return spring in the third embodiment
  • Figure 19 is a schematic view showing the connection structure of the connecting member and the base and the return spring at another angle in the embodiment 3;
  • Figure 20 is a schematic view showing the internal planar structure of the connecting member in cooperation with the base and the return spring in Embodiment 3;
  • Figure 21 is a schematic view showing the outer planar structure of the connecting member in cooperation with the base and the return spring in the third embodiment
  • Figure 22 is a schematic view showing the cooperation structure of the return spring and the upper and lower limit plates in the third embodiment
  • Figure 23 is a schematic view showing the cooperation structure of the seat support member through the transition link and the base in the third embodiment
  • Figure 24 is a schematic view showing the mating structure of a set of links in the third embodiment
  • Figure 25 is a schematic view showing the cooperation structure of the seat support member and the lever driving member in the third embodiment.
  • the present invention takes the seat as a reference in the normal use state, the front of the seat is the front, and the rear of the seat including the seat back component is located rearward.
  • a seat structure includes:
  • the base 1 is configured to be coupled to the chair base assembly; the base 1 is preferably a metal base; the chair base assembly (not shown) includes a support post, a plurality of support legs extending radially from a lower end of the support post, and casters supporting the end of the leg,
  • the support column can be a gas rod.
  • the seat support member 2 is disposed above the base 1 and is substantially parallel with the base 1.
  • the seat support member 2 is rotatably connected to the front end of the base 1 via a transition link 8; the seat support member 2 includes left and right symmetry.
  • Two support rods 61, the front portions of the two support rods 61 are integrally connected by the cross rod 62; the cross rod 62 is rotatably connected to the front portion of the base 1 through the transition link 8; the front end of the seat support member 2 is bent downwardly and extendedly.
  • the structure is a sitting posture of the human body, and the seat support member 2 and the base 1 are rotatably connected in a frame structure; the human body sitting posture structure conforms to the artificial body science, so that the human body feels more comfortable and the legs feel good;
  • the two ends of the transition link 8 are respectively provided with an arc-shaped connecting rod limiting structure 25; one end of the connecting support member 2 and the transition connecting rod 8 is provided with a first limiting structure 9 corresponding to the connecting rod limiting structure, and the base is provided.
  • a second limiting structure 21 is disposed at a rotational connection of the transition link 8 .
  • the first limiting structure 9 is an arc-shaped limiting protrusion
  • the second limiting structure 21 is an arc-shaped limiting protrusion or a limiting pin or a limiting tooth.
  • the second limiting structure 21 is a limiting pin (see FIG. 3).
  • the seat back assembly 3 includes a connecting member 4 and a bracket 5, and the connecting member 4 and the rear portion of the base 1 are rotatably connected by a pivot 6.
  • the bracket 5 includes a back frame upper bracket 51 and a downwardly extending side bracket 511 on the left and right sides of the back frame upper bracket 51.
  • the lower ends of the two side brackets 511 meet toward the middle to form a back frame lower bracket 52, under the back frame.
  • the bracket 52 extends forwardly to the connecting member 4; an armrest 53 is connected between the supporting rod 61 and the side bracket 511.
  • a lever driving member 7 is connected between the bracket 5 and the seat support 2, and the two lever driving members 7 are respectively rotatably connected to the rear portions of the two supporting rods 61; the lever driving member 7 is also corresponding to the seat supporting member 2 Two symmetrical sides, and the lever driving member 7 is formed to extend forward from the lower middle position of the side bracket 511; the lever driving member 7 is substantially in the same plane as the seat supporting member 2, that is, the lever driving member 7 and The support bars 61 are substantially connected in a straight line and both are substantially parallel to the base 1.
  • the lever driving member and the seat supporting member are substantially on the same surface, and it does not mean that the two are all on the same plane, and the angle between the two is more than 20 degrees in a broad sense, and the chair is more suitable.
  • the seat does not appear too much abrupt deformation, that is, it is configured for the purpose of simplicity and smoothness.
  • the lever driving member 7 does not have its own driving ability, but relies on the rotation of the seat back assembly 3; when the bracket 5 is rotated backward from the initial position, the seat support 2 is lifted by the lever driving member 7; when the bracket 5 is reset The seat support 2 is again reset to the initial position by the lever drive member 7.
  • the bracket 5 is an integral member provided to fit the structure of the back of the human body.
  • the base 1 includes a bottom plate 26 and side plates 27 (see Fig. 5) which are disposed in an arcuate configuration in the longitudinal direction of the front and rear.
  • the connecting member 4 is disposed in a U-shaped structure. Specifically, the connecting member 4 has two arm portions 41 disposed at opposite intervals. The front end of the connecting member 4, that is, the arm portion 41 cooperates with the rear end of the base 1 and is rotatable relative to each other. .
  • the two arm portions 41 of the connecting member 4 are respectively provided with pivoting holes 12 at a rotationally engaging portion of the two side plates 27 of the base 1.
  • the connecting member 4 and the base 1 are rotatably connected by a pivot shaft 6 disposed inside the pivoting hole 12.
  • a fixed length hole 15 is disposed on one of the base 1 or the connecting member 4, and a limited position shaft 14 is disposed on the corresponding one (see FIGS. 3 and 5).
  • the limiting long hole 15 is disposed in front of the pivot hole 12, and the connecting member 4
  • the guide limit of the front and rear tilting is realized by the limit shaft 14.
  • the rear side support brackets 5 of the connecting member 4 are provided with a fixed snap-fit structure 13.
  • a reset device 16 is disposed between the base 1 and the connecting member 4; specifically, the reset device 16 is 2 to 5 reset springs arranged side by side; The two ends are respectively connected with the base 1 and the connecting member 4; specifically, a pin 10 is horizontally disposed on the base 1 and the connecting member 4, and the two ends of the resetting spring are respectively connected to the base 1 and the connecting member 4 Pin 10.
  • the reset spring includes a compression spring body 18 and a connecting seat 17 disposed at both ends of the compression spring body.
  • the connecting seat 17 is provided with a shaft hole 42 which is bored in the shaft hole 42 of the connecting seat 17.
  • the lever drive member 7 is integrally provided with the bracket 5; or the lever drive member 7 is separately and fixedly connected to the bracket 5. In this embodiment, the lever driving member 7 is integrally provided with the bracket 5.
  • the lever drive member 7 and the seat support member 2 are rotatably coupled by a set of links 20.
  • the connecting rod 20 includes a first connecting rod 19 and a second connecting rod 29, and the first connecting rod 19 and the seat supporting member 2 are fixedly connected by three screws, and the second connecting rod 29 and the lever driving member 7 are fixedly connected by three screws.
  • the first link 19 and the second link 29 are rotatably coupled by a rotating shaft 30.
  • a limit hole 31 is provided in any one of the first link 19 and the second link 29, and a limit pin 32 is disposed on the other one, and the limit pin 32 is inserted in the limit hole 31.
  • the seat structure forms a four-link lever link arm structure by providing a seat support member 2, a seat back assembly and a lever drive member rotatably connected to the front portion of the seat through the transition link 8 (see FIG. 3). , Figure 4).
  • the force exerted by the human body on the seat back assembly is transmitted between the rotationally connected lever driving member and the seat back assembly and the seat support member, thereby driving the seat support member to be lifted up and down on the base, thereby realizing Tilt back and forth (see Figure 5, Figure 6).
  • a seat comprising:
  • the chair base assembly (not shown) includes a support post, a plurality of support legs extending radially from a lower end of the support post, and a caster supporting the end of the leg, the support post connecting the base, the support post may be a gas rod .
  • a mesh (not shown), the mesh is stretched from top to bottom on the seat back assembly, the lever driving member and the seat support, and the mesh is integrally connected from top to bottom.
  • a seat structure comprising:
  • the base 1 is configured to be coupled to the chair base assembly; the base 1 is disposed in a Y-shaped configuration.
  • the seat support member 2 is disposed above the base 1; the front end of the seat support member 2 is bent downwardly and downwardly to extend into a human body sitting position structure, and the seat support member 2 is rotatably connected to the base body 1 in a frame structure.
  • the adapter member 22, the adapter member 22 is disposed between the seat support member 2 and the base 1, and the two ends of the adapter member 22 are respectively rotatably connected to the front portion of the seat support member 2 and the front portion of the base member 1;
  • a seat back assembly 3 the seat back assembly 3 and the rear portion of the base 1 are rotatably connected by a pivot 6;
  • a lever driving member 7 is coupled between the seat back assembly 3 and the seat support 2, and when the seat back assembly 3 is rotated backward from the initial position, the seat support 2 is lifted by the lever driving member 7 and the seat support member is lifted 2 Rearward movement; when the seatback assembly 3 is reset, the seat support 2 is again reset to the initial position by the lever drive member 7.
  • the back assembly 3 is provided with an integral member disposed on the back structure of the human body.
  • the back assembly 3 includes a back frame upper bracket 51, a back frame lower bracket 52 and two side armrests 53.
  • the back frame lower bracket 52 is integrally extended forwardly.
  • the base 1 cooperates with a rotating connection structure.
  • a resetting device 16 is provided at the transfer of the base 1 and the seat back assembly 3.
  • the reset device 16 is a torsion spring assembly.
  • the torsion spring assembly includes a torsion spring seat 23 coupled to the base 1 and the seat back assembly 3, and a torsion spring 24 disposed inside the torsion spring seat 23.
  • the torsion spring assembly includes a torsion spring seat 23 coupled to the base 1 and the seat back assembly 3, and a torsion spring 24 disposed inside the torsion spring seat 23.
  • the torsion spring seat 23 includes a torsion spring front seat 33 and a torsion spring rear seat 34.
  • the torsion spring front seat 33 and the torsion spring rear seat 34 are respectively provided with a pair of adapter walls 35, a torsion spring front seat 33 and a torsion spring rear seat 34.
  • the adapter wall 35 is rotatably coupled to form a mounting cavity 36.
  • the torsion spring 24 includes a torsion spring body 37 and a torsion arm 38. The torsion spring 24 is disposed inside the mounting cavity 36 to achieve torque reset.
  • the lever drive member 7 is a set of link links 20 including a first link 19 and a second link 29, the first link 19 is fixedly connected to the seat support 2, and the second link 29 is fixedly connected to the lever drive member 7.
  • the first link 19 and the second link 29 are rotatably coupled by the rotating shaft 30.
  • a limit projection 39 is provided on any one of the first link 19 and the second link 29, and a limit groove 40 is provided on the other one.
  • the seat structure can also be provided with a seat support member rotatably coupled to the front portion of the seat, an adapter member, a seat back assembly and a lever drive member, and the seat back assembly is directly rotatably coupled to the rear end of the base, thereby Form a lever link arm structure.
  • a seat support member rotatably coupled to the front portion of the seat
  • an adapter member rotatably coupled to the front portion of the seat
  • a seat back assembly is directly rotatably coupled to the rear end of the base, thereby Form a lever link arm structure.
  • a base assembly for supporting a seat structure
  • a mesh (not shown), the mesh is stretched from top to bottom on the seat back assembly, the lever driving member and the seat support, and the mesh is integrally connected from top to bottom.
  • the seat back assembly 3 when the human body tilts the seat back assembly 3 backward, the seat back assembly 3 moves backwards under the tilting force, and the backward tilting pressure is transmitted downward through the seat back assembly 3 to the lever drive.
  • the lever driving member 7 drives the seat support member 2 to be lifted up and moved backward to realize the backward tilting of the human body and the seat structure; when the human body leans forward, the tilting pressure on the seat back assembly 3 disappears, and the reset device drives The seat back assembly 3 is reset to the initial position.
  • the seat structure realizes the rotation between the components through a transition link and a set of lever linkages of the over-link, and is limited by the limiting device. It is convenient to apply and transfer, but to make the movement between components more smooth.
  • the seat structure and the seat thereof can be made of any material, and can be applied to any person.
  • the reset device can be set according to the design, the weight of the human body, etc., to meet different usage requirements and use by different people, and It can meet the requirements of human sitting comfort.
  • Embodiment 3 In this embodiment, the four-link assembly and structure relationship of the lever driving member, the seat back assembly, the seat support member, the transition link, and the base are basically the same in the first embodiment, and the embodiment and the first embodiment are mainly The difference is that, as shown in FIG. 16-25, a return spring 71 is disposed longitudinally between the seat back assembly 3 and the base 1, and in particular, the return spring 71 is disposed further forward than the pivot 6. s position.
  • the longitudinal configuration is not limited to the longitudinal direction in a strict sense, and does not necessarily mean that the center line of the return spring 71 coincides with the vertical line, and in a broad sense means the degree of excluding the lateral arrangement, and more appropriately, the lower end of the seat back assembly
  • the direction of upward force is basically the same when rotating.
  • the return spring 71 is a compression spring, and the upper end of the base 1 is provided with an upper limit plate 81.
  • the return spring 71 is disposed between the lower end of the seat back assembly 3 and the upper limit plate 81.
  • the base 1 includes a bottom plate 26 and side plates 27 extending upwardly along both sides of the bottom plate 26.
  • the seat back assembly 3 includes a connecting member 4 and a bracket 5 for a backrest or a seat back.
  • the connecting member 4 includes a left and right symmetrical end plate 91 and a connecting plate 92 connecting the two end plates 91.
  • the lower limit position plate 82 is disposed on the connecting member 4, and the lower limit position plate 82 is hingedly disposed with the end plates 91 on both sides by the lugs 811 extending upward at both ends, and the return spring 71 is disposed at the upper limit plate 81 and the lower limit plate Between the bit plates 82.
  • the return springs 71 are at least two arranged side by side, which are disposed in the base 1 from left to right, and at least two positioning posts 83 are oppositely disposed on the upper and lower limit plates 81, 82, and are reset.
  • the upper and lower ends of the spring 71 are respectively sleeved and positioned with the corresponding positioning posts 83.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs Characterized By Structure (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

一种座椅结构及座椅，座椅结构包括：底座（1），配置为连接到椅子底座组件；座支撑件（2），座支撑件（2）设置于底座（1）上方，且座支撑件（2）前部与底座（1）前部经由一过渡连杆（8）转动连接；椅背组件（3），椅背组件（3）与底座（1）后部通过枢轴（6）转动连接；杠杆驱动件（7），连接于椅背组件（3）与座支撑件（2）之间，并且杠杆驱动件（7）与座支撑件（2）后部转动连接，杠杆驱动件（7）与座支撑件（2）大致处于同一面上；当椅背组件（3）从初始位置绕枢轴（6）向后转动时，通过杠杆驱动件（7）将座支撑件（2）后部朝着斜向后方抬起，并同时拉起过渡连杆（8）及座支撑件（2）前部。座椅结构形成一个四连杆杠杆连杆臂结构。在使用过程中，底座（1）固定不动，人体作用在椅背组件（3）上的力，传递并带动座支撑件（2）在底座（1）上实现上下抬起，进而实现前后倾仰。

Description

一种座椅结构及座椅 技术领域
本发明涉及座椅、转椅、办公椅等技术领域，特别涉及一种座椅结构及座椅。
背景技术
转椅底盘，也称转椅托盘，是装在转椅座垫下方的一个重要部件，座垫的升降，靠背的倾仰角度调节都是依靠底盘来完成的。
中国专利文献（公告日： 2014年12月24日，公告号：CN104223821A）公开了一种转椅底盘，包括底座、托架及翘板，托架设置在底座内，翘板设置在托架内，翘板以第一销轴为转动支点，第一销轴穿过托架并与底座相连，翘板前部通过第一连杆、第二连杆撬动托架，第一连杆与第二连杆通过第三销轴铰接且第三销轴与托架相连，第二连杆穿有第二销轴且第二销轴穿过或避开托架后与底座相连，在托架的两侧对称开设有轨道槽，第一销轴穿设在轨道槽内，该底盘还包括当翘板撬动托架运动后使托架能够恢复原位的弹性复位装置。装备此底盘的转椅或座椅，根据人体重量，靠背倾仰回复力有相应匹配，使得无论体重轻或者重的人都可以轻松倾仰回复起身。
具体的说，该专利的第一销轴、第二销轴、第三销轴、第四销轴、翘板、第一连杆、第二连杆形成四点连杆机构，形成力的传导，椅背连接固定于翘板作为四点连杆机构的驱动力，人体施加于椅座的重力通过铰接于托架的第三销轴形成施加在四点连杆机构的回复力，四点连杆机构的驱动力和回复力形成对抗关系。
在人体向后倾仰过程中，四点连杆机构的第二连杆与水平线的锐角夹角逐步减小，则托架施加于第二连杆的旋转力分力增大，从而实现重力加载对于四连杆机构的回复力力矩逐步增大，与逐步增大的驱动力形成对抗，回复力对弹性复位装置的弹性回复力依赖较小，适用人群范围更广，体重较轻或较重的人都能轻松地倾仰和回复起身，因此针对每个不同体重的人都可以达到最合理匹配回复力。
中国专利文献（公告日：2015年10月7日，公告号：CN103108572B）公开了一种用于椅子的倾斜机构包括底座、配置用于支撑椅子靠背的靠背支架和配置用于将所述靠背支架连接于所述底座的连接装置。所述连接装置包括导轨和引导件。所述导轨和引导件中的一个提供于靠背支架的从靠背结合部分延伸到枢轴连接部分的部分上，在所述枢轴连接部分处所述靠背支架可被铰接到椅子座。所述导轨和引导件中的另一个提供在所述底座上。当所述连接装置将所述靠背支架连接于所述底座时，所述靠背支架绕着所述枢轴连接部分的枢轴转动导致所述引导件和所述导轨相对于彼此移动，实现所述枢轴连接部分相对于所述底座的移动。
上述技术方案是为了避免在所述的椅子靠背的后侧上并跨过所述的椅子靠背的显著部分延伸的部件的需要，而提供了一种为了提高舒适度，实现各种构造以实现椅子靠背和椅子座协调运动的倾斜机构。其技术方案的实现是通过将整个椅座向后抬起来实现的，其整体结构设计比较复杂，对于使用者来讲，后仰的力度需要足够大，这种方案不能适合所有的人群使用；再就是这种座椅美观程度不够，不符合现代流线型审美的需要，并且也不方便配置椅背、椅座连为一体的全网布，只能是椅背网布与椅座网布分开来设置。
技术问题
本发明的目的是为了克服上述现有技术中所存在的不足，而提供一种结构简单，美观大方，在方便配置椅背、椅座连为一体的全网布基础上，又实现了实现椅背后仰时将椅座前后抬起功能的座椅结构及其在座椅上的应用。该座椅结构可满足不同人群、不同体重的人使用，不仅解决了以往座椅的整体抬起时，腰部力度要足够大，给使用者带来的不舒适感，从而可以提高不同人体使用时的舒适度；而且在整个过程中使得任何使用者都能轻松地倾仰和回复起身，在不同的位置都能够找到舒适点。
 技术解决方案
本发明实现其发明目的所采用的技术方案是：
一种座椅结构，包括：
底座，配置为连接到椅子底座组件；
座支撑件，所述座支撑件设置于底座上方，且座支撑件前部与底座前部经由一过渡连杆转动连接；
椅背组件，与底座后部通过枢轴转动连接；
杠杆驱动件，其连接于所述椅背组件与座支撑件之间，并且杠杆驱动件与座支撑件后部转动连接，所述杠杆驱动件与座支撑件大致处于同一面上；当椅背组件从初始位置绕枢轴向后转动时，通过杠杆驱动件将座支撑件后部朝着斜向后方抬起，并同时拉起过渡连杆及座支撑件前部。
该座椅结构，通过设置一通过过渡连杆与底座前部转动连接的座支撑件、一椅背组件和一杠杆驱动件，形成一个四连杆杠杆连杆臂结构。在使用过程中，底座固定不动，人体作用在椅背组件上的力，在转动连接的杠杆驱动件和椅背组件以及座支撑件之间相互传递，从而带动座支撑件在底座上实现上下抬起，进而实现前后倾仰。更重要的是，杠杆驱动件与底座大致平行，并且杠杆驱动件与座支撑件大致处于同一面上，这样就使得椅背组件为椅座连为一体，方便配置一整张网布，也就是网布可以由上到下连为一体，避免分开。该座椅结构，可以适用于任何人，而且也不存在制造材料的限制，当不同的使用者使用时，不需要施加将整个座椅抬起的力，就可以实现轻松后仰和前倾，由于不同使用者其向后倾压的力的大小不同，椅背组件及杠杆驱动件之间力的传递大小不同，进而实现座支撑件抬起及前后倾仰幅度的大小不同，能够满足不同人全的舒适度要求。
作为优选，所述的椅背组件包括连接件与支架，所述的连接件通过枢轴与底座后部转动连接，所述的支架包括一背框上支架及处于背框上支架左右两旁的向下延伸的侧支架，所述的杠杆驱动件为左右对称的两个，且杠杆驱动件是由侧支架中下部位置向前延伸形成，两个侧支架的下端朝中间交汇并向前延伸与连接件相连；所述的座支撑件包括左右对称的两支撑杆，两支撑杆后部分别与两个杠杆驱动件转动连接，两支撑杆前部通过横杆连为一体；杠杆驱动件与支撑杆大致连为一条直线。这样的话，就形成了连为一体的椅背与椅座，方便配置网布。
作为优选，所述的座支撑件的前端向下向后弯折延伸设置为人体坐姿位结构，并且座支撑件与底座呈架体结构转动连接。座支撑件的结构既满足人体坐姿的要求，又能够方便其前倾和后仰。
作为优选，所述的座支撑件与过渡连杆连接的一端设置有第一限位结构，所述的底座与过渡连杆转动连接处设置有第二限位结构。所述的限位结构可以在过渡连杆转动时起到限位作用，防止运动行程过大；再者，在初始状态时，上述限位结构可以对座支撑件形成有效支撑，防止压塌。
作为优选，所述的第一限位结构为弧形限位凸起。
作为优选，所述的第二限位结构为弧形限位凸起或为限位销或为限位齿。
作为优选，所述的底座包括一底板和两侧板，所述的底板在前后长度方向上呈弧形结构设置。
作为优选，所述的连接件呈U形结构设置，所述的连接件的前端与底座的后端内外配合并且可相对转动连接。
作为优选，所述的连接件与底座转动配合处两侧板上分别设置有枢接孔，所述的连接件与底座通过设置在枢接孔内部的枢轴转动连接。连接件与底座通过枢接轴转动连接，在杠杆驱动件的带动下实现椅背组件的前倾和后倾，满足人体前倾和后倾的需要。
作为优选，所述的底座或连接件其中一个上设置有限位长孔，对应的另一个上设置有限位轴，所述的限位长孔设置在枢接孔前方，所述的连接件通过限位轴实现前后翘动的引导限位；使连接件转动保持在合适的角度。
为了方便连接件与支架连接，作为优选，所述的连接件的后端两侧配合支架设置有固定卡接结构。
作为优选，所述的底座与连接件之间设置有复位装置。
作为优选，所述的复位装置为至少一个复位压簧。复位压簧设置在底座内部，复位压簧可以根据复位力的大小选择设置有不同数量，但无论数量多少，都隐藏在底座内，使整个座椅外形美观，复位方便。
作为优选，复位压簧设置在底座、连接件围合的空间内，所述的复位压簧的两端分别与底座和连接件相连接。复位压簧设置在底座、连接件围合的空间内，不额外占用空间，使座椅整体外形更加美观。
作为优选，在底座与连接件上各横设有一销轴，复位压簧的两端分别连接底座、连接件上的销轴。两个销轴分别穿设在底座、连接件上，当连接件转动时，连接件上的销轴绕枢轴转动，并靠近底座上的销轴，而复位压簧连接于两销轴之间，受到压缩变形，产生复位弹力。
为了方便复位压簧与销轴连接，作为优选，所述的复位压簧包括一压簧本体和设置在压簧本体两端的连接座，连接座上设有轴孔，所述的销轴穿设在连接座的轴孔内。
作为优选，所述的杠杆驱动件与支架一体设置。杠杆驱动件可以是支架的一体向下延伸的一段，人体向后的倾压力通过支架传递到杠杆驱动件上，杠杆驱动件带动座支撑件运动，实现整个座椅结构的前后运动。
作为另一种优选，所述的杠杆驱动件与支架分体设置并固定连接。当然，杠杆驱动件也可以是单独设置的连接在支架下端，实现对座支撑件的驱动。
作为优选，所述的杠杆驱动件与座支撑件通过一组连杆转动连接。
作为优选，所述的连杆包括第一连杆和第二连杆，所述的第一连杆和第二连杆通过转轴转动连接。
作为优选，所述的第一连杆和第二连杆其中任意一个上设置有限位孔，对应的另一个上设置有限位销轴。所述的限位销轴插置在限位孔内，限位结构的设置能够实现对座支撑件前后倾仰幅度的限位，保证使用者在一个舒适的范围内前后倾仰。
一种座椅，包括：
如上所述的座椅结构；
用于支撑座椅结构的底座组件；
网布，所述的网布由上到下绷在椅背组件、杠杆驱动件与座支撑件上，且所述的网布由上到下连为一体。
作为第二种优选方案：
一种座椅结构，包括：
底座，配置为连接到椅子底座组件；
座支撑件，所述座支撑件设置于底座上方，且座支撑件前部与底座前部经由一过渡连杆转动连接；
椅背组件，与底座后部通过枢轴转动连接；
杠杆驱动件，其连接于所述椅背组件与座支撑件之间，并且杠杆驱动件与座支撑件后部转动连接，所述杠杆驱动件与座支撑件大致处于同一面上；当椅背组件从初始位置绕枢轴向后转动时，通过杠杆驱动件将座支撑件后部朝着斜向后方抬起，并同时拉起过渡连杆及座支撑件前部；
复位弹簧，纵向配置于椅背组件与底座之间；在椅背组件向后转动时复位弹簧产生反作用力。
本方案的复位弹簧，纵向配置于椅背组件与底座之间，使得杠杆驱动件转动时向上对其直接施力，使复位弹簧变形提供充分的复位力。
作为优选，所述的复位弹簧配置于比枢轴更靠前方的位置。相当于复位弹簧完全隐藏于底座内部空间内，从而充分利用了底座内部的高度空间，座椅外部不会因为布置了复位弹簧而产生凸出，也不会对外观造成损害。
作为优选，所述的复位弹簧为压簧。
作为优选，底座上端设有上限位板，复位弹簧设置在椅背组件下端与上限位板之间。复位弹簧上端被上限位板限位，使得复位弹簧被约束在底座内的高度空间内，不会向外凸出，充分利用了底座内的狭小空间。
作为优选，所述的底座包括一底板和由底板两侧向上延伸的两侧板，所述的椅背组件包括连接件与用于作为靠背的支架，所述的连接件包括左右对称的端板及连接两端板的连接板，所述的端板与侧板通过枢轴转动连接；所述的上限位板通过两端的凸耳与底座的两侧板铰接设置，在连接件上设有下限位板，所述的下限位板通过两端的凸耳与端板铰接设置，复位弹簧设置在上限位板与下限位板之间。上、下限位板均各自与底座、连接件铰接，使得在连接件转动时，可以随连接件转动弧线发生自适应角度转动，复位弹簧也会跟随运动产生相应的角度变化，而不会产生自身的横向扭曲与变形，使其可以充分发挥自身弹力，延长了使用寿命。
为了进一步保证复位弹簧可以充分提供复位力，并能够使复位弹簧上下限位，不会移位，作为优选，所述的复位弹簧为并排设置的至少两个，在上、下限位板上相对设有至少两个定位柱，复位弹簧的上下两端分别与对应的定位柱套接定位。
作为优选，所述的椅背组件包括连接件与支架，所述的连接件通过枢轴与底座后部转动连接，所述的支架包括一背框上支架及处于背框上支架左右两旁的向下延伸的侧支架，所述的杠杆驱动件为左右对称的两个，且杠杆驱动件是由侧支架中下部位置向前延伸形成，两个侧支架的下端朝中间交汇并向前延伸与连接件相连；所述的座支撑件包括左右对称的两支撑杆，两支撑杆后部分别与两个杠杆驱动件转动连接，两支撑杆前部通过横杆连为一体；杠杆驱动件与支撑杆大致连为一条直线。这样的话，就形成了连为一体的椅背与椅座，方便配置网布。
作为优选，所述的座支撑件的前端向下向后弯折延伸设置为人体坐姿位结构，并且座支撑件与底座呈架体结构转动连接。座支撑件的结构既满足人体坐姿的要求，又能够方便其前倾和后仰。
作为优选，所述的座支撑件与过渡连杆连接的一端设置有第一限位结构，所述的底座与过渡连杆转动连接处设置有第二限位结构。所述的限位结构可以在过渡连杆转动时起到限位作用，防止运动行程过大；再者，在初始状态时，上述限位结构可以对座支撑件形成有效支撑，防止压塌。
作为优选，所述的第一限位结构为弧形限位凸起。
作为优选，所述的第二限位结构为弧形限位凸起或为限位销或为限位齿。
作为优选，底座包括底板及沿底板两侧向上延伸的侧板，所述的连接件与底座转动配合处的两侧板上分别设置有枢接孔，枢轴穿设在枢接孔内。连接件与底座通过枢接轴转动连接，在杠杆驱动件的带动下实现椅背组件的前倾和后倾，满足人体前倾和后倾的需要。
作为优选，所述的底座或连接件其中一个上设置有限位长孔，对应的另一个上设置有限位轴，所述的限位长孔设置在枢接孔前方，所述的连接件通过限位轴实现前后翘动的引导限位；使连接件转动保持在合适的角度。
作为优选，所述的杠杆驱动件与座支撑件通过一组连杆转动连接。
作为优选，所述的连杆包括第一连杆和第二连杆，所述的第一连杆和第二连杆通过转轴转动连接。
作为优选，所述的第一连杆和第二连杆其中任意一个上设置有限位孔，对应的另一个上设置有限位销轴。所述的限位销轴插置在限位孔内，限位结构的设置能够实现对座支撑件前后倾仰幅度的限位，保证使用者在一个舒适的范围内前后倾仰。
作为优选，所述的杠杆驱动件与支架一体设置。杠杆驱动件可以是支架的一体向下延伸的一段，人体向后的倾压力通过支架传递到杠杆驱动件上，杠杆驱动件带动座支撑件运动，实现整个座椅结构的前后运动。
作为另一种优选，所述的杠杆驱动件与支架分体设置并固定连接。当然，杠杆驱动件也可以是单独设置的连接在支架下端，实现对座支撑件的驱动。
一种座椅，包括：
如上所述的座椅结构；
用于支撑座椅结构的底座组件；
网布，所述的网布由上到下绷在椅背组件、杠杆驱动件与座支撑件上，且所述的网布由上到下连为一体。
 有益效果
采用了上述技术方案的本发明的设计出发点、理念及有益效果是：
本发明首先提供了一种座椅结构，整体形成一呈封闭式环状的杠杆连杆臂结构，也就是说杠杆驱动件的椅背组件、座支撑件、过渡连杆以及底座组成四连杆机构；底座固定不动，椅背组件转动时通过杠杆驱动件将过渡连杆以及座支撑件前、后部抬起，椅背组件的驱动力和座支撑件的回复力形成对抗关系，因此，体重较轻或较重的人都能轻松地倾仰和回复起身，从而满足人体坐姿处于舒适度程度的要求。
再进一步说，杠杆驱动件与底座大致平行，并且杠杆驱动件与座支撑件大致处于同一面上，这样就使得椅背组件为椅座部分连为一体，方便配置网布，也就是网布可以由上到下连为一体，避免分开，外形更为顺畅美观。
本发明的座椅结构设置了底座提供了较为稳固的支撑，另将座支撑件悬空设置，并使座支撑件前端与底座前端转动连接，椅背组件又与底座后端转动连接；因此当椅背组件转动时，通过杠杆驱动件形成力的传导，给座支撑件以向上的力，使得座支撑件向上抬起，而人体施加于座支撑件的重力形成座支撑件复位的回复力，椅背组件的驱动力和座支撑件的回复力形成对抗关系，因此，体重较轻或较重的人都能轻松地倾仰和回复起身，适用人群范围更广。
再进一步说，又设置了对椅背组件进行辅助复位的复位装置，复位装置为至少一个复位压簧，复位压簧的数量多少可以根据人体的体重等指标进行设置，但由于底座的存在，无论复位压簧数量为几个，复位装置设置在底座、连接件围合的空间内，不额外占用空间，使座椅整体外形更加美观；使得该座椅结构可根据不同人体施加的力的大小实现不同程度的后倾，以适应不同使用者的需要。
具体的说，当人坐在座椅上时，人体施加在椅背组件上的后倾力，通过椅背组件传递到杠杆驱动件，杠杆驱动件驱动座支撑件向上抬起向后运动，此时，椅背组件与连接件一起绕底座向后转动，到达后倾位置。人体前倾时，施加在椅背组件上的力消失，椅背组件在复位装置回复力的带动下向前运动，此时，座支撑件在人体重力下又进一步下压杠杆驱动件使其复位，座支撑件回复到原静止位即初始位置，适用人群范围更广，根据使用者不同，可以设置不同的复位力，进而可以施加不同的后倾力，更具有通用性。
总体来说，本发明提供了一种无需手动调节，更人性化、通用性更好的重力自适应座椅，根据人体重量，椅背倾仰回复力有相应匹配，使得无论体重轻或者重的人都可以轻松倾仰回复起身。
再者，人在向后靠的过程中，座支撑件即椅座也跟随椅背的转动向后移动，使椅背腰部支撑始终贴合人体后背的对应位置，避免了椅背腰部支撑脱离人体腰部产生腰部悬空，也避免了衣物与座椅椅背产生摩擦。
 附图说明
图1是本发明座椅结构的一种结构示意图；
图2是本发明座椅结构的另一角度的结构示意图；
图3是本发明座椅结构单侧结构原始状态图；
图4是本发明座椅结构单侧结构后仰状态图；
图5为本发明座椅结构单侧结构后仰状态剖视图；
图6为本发明座椅结构后倾状态结构示意图；
图7为本发明中压簧的一种结构示意图；
图8为本发明中压簧的一种爆炸图；
图9是为本发明座椅结构的第二种结构示意图；
图10是本发明第二种座椅结构的静止俯视图；
图11是本发明第二种座椅结构的后仰俯视图；
图12是本发明第二种座椅结构单侧结构原始状态图；
图13是本发明第二种座椅结构单侧结构后仰状态图；
图14是本发明第二种座椅结构的静止状态图；
图15是本发明第二种座椅结构的后仰状态图；
图16为实施例3中座椅的立体结构示意图；
图17为实施例3中座椅的内部平面结构示意图；
图18为实施例3中连接件与底座、复位弹簧的连接结构示意图；
图19为实施例3中连接件与底座、复位弹簧另一角度的连接结构示意图；
图20为实施例3中连接件与底座、复位弹簧配合的内部平面结构示意图；
图21为实施例3中连接件与底座、复位弹簧配合的外部平面结构示意图；
图22为实施例3中复位弹簧与上、下限位板的配合结构示意图；
图23为实施例3中座支撑件通过过渡连杆与底座的配合结构示意图；
图24为实施例3中一组连杆的配合结构示意图；
图25为实施例3中座支撑件与杠杆驱动件的配合结构示意图。
图中：1、底座，2、座支撑件，3、椅背组件，4、连接件，5、支架，6、枢轴，7、杠杆驱动件，8、过渡连杆，9、第一限位结构，10、销轴，11、复位装置伸缩滑道，12、枢接孔，13、固定卡接结构，14、限位轴，15、限位长孔，16、复位装置，17、连接座，18、压簧本体，19、第一连杆，20、连杆，21、第二限位结构，22、转接件，23、扭簧座，24、扭簧， 51、背框上支架，511、侧支架，52、背框下支架，53、扶手，25、连杆限位结构，26、底板，27、侧板，29、第二连杆,30、转轴，31、限位孔，32、限位销轴，33、扭簧前座，34、扭簧后座，35、转接壁，36、安装腔体，37、扭簧本体，38、扭力臂，39、限位凸起，40、限位槽，41、臂部，42、轴孔，61、支撑杆，62、横杆。
 本发明的实施方式
下面通过具体实施例并结合附图对本发明的技术方案作进一步详细说明。
首先定义本发明各部件的参考方位，本发明以座椅在正常使用状态作为参考，座椅的前方为前方，而座椅的后方包括椅背组件所在的位置为后方。
实施例1：
在图1、图2所示的实施例中，一种座椅结构，包括：
底座1，配置为连接到椅子底座组件；底座1优选为金属底座；椅子底座组件(未图示)包括支撑柱、从支撑柱下端径向延伸的多个支撑腿和支撑腿端部的脚轮，所述的支撑柱可以为气杆。
座支撑件2，座支撑件2设置于底座1上方并与底座1保持大致平行状态，座支撑件2与底座1前端通过一过渡连杆8转动连接；所述的座支撑件2包括左右对称的两支撑杆61，两支撑杆61前部通过横杆62连为一体；横杆62通过过渡连杆8与底座1前部转动连接；座支撑件2的前端向下向后弯折延伸设置为人体坐姿位结构，并且座支撑件2与底座1呈架体结构转动连接；人体坐姿位结构符合人工体学，使人体坐感更为舒适，腿部感觉良好；
过渡连杆8的两端分别设置有呈弧形的连杆限位结构25；座支撑件2与过渡连杆8连接的一端对应于连杆限位结构设置有第一限位结构9，底座1与过渡连杆8转动连接处设置有第二限位结构21。第一限位结构9为弧形限位凸起，第二限位结构21为弧形限位凸起或为限位销或为限位齿。本实施例中第二限位结构21为限位销（见图3）。
椅背组件3，包括连接件4与支架5，连接件4与底座1后部通过枢轴6转动连接，支架5转动时带动连接件4绕所述枢轴6转动；连接件4相当于椅背组件3与底座1的连接纽带。所述的支架5包括一背框上支架51及处于背框上支架51左右两旁的向下延伸的侧支架511，两个侧支架511的下端朝中间交汇形成背框下支架52，背框下支架52向前延伸与连接件4相连；支撑杆61与侧支架511之间连接有扶手53。
杠杆驱动件7，其连接于所述支架5与座支撑件2之间，两个杠杆驱动件7分别与两支撑杆61后部转动连接；所述的杠杆驱动件7对应座支撑件2也为左右对称的两个，且杠杆驱动件7是由侧支架511中下部位置向前延伸形成；所述杠杆驱动件7与座支撑件2大致处于同一面上，也就是说杠杆驱动件7与支撑杆61大致连为一条直线并且两者均与底座1大致保持平行。所述杠杆驱动件与座支撑件大致处于同一面上，并非意指两者处处都处于同一平面上，广义上排除两者之间呈大于20度的夹角的情况，更恰当的是以椅座不会出现太大的突兀变形，即以简洁流畅为目的来配置。
杠杆驱动件7并非自身有驱动能力，而是依靠椅背组件3转动传递力；当支架5从初始位置向后转动时，通过杠杆驱动件7将座支撑件2抬起；当支架5复位时，又通过杠杆驱动件7将座支撑件2复位至初始位置。支架5为配合人体背部结构设置的一体式构件。
底座1包括一底板26和两侧板27（见图5），底板26在前后长度方向上呈弧形结构设置。连接件4呈U形结构设置，具体的说，连接件4具有间隔相对设置的两个臂部41，连接件4的前端亦即臂部41与底座1的后端内外配合并且可相对转动连接。
连接件4的两臂部41与底座1的两侧板27相转动配合处上分别设置有枢接孔12，连接件4与底座1通过设置在枢接孔12内部的枢轴6转动连接。
底座1或连接件4其中一个上设置有限位长孔15，对应的另一个上设置有限位轴14（见图3、图5），限位长孔15设置在枢接孔12前方，连接件4通过限位轴14实现前后翘动的引导限位。连接件4的后端两侧配合支架5设置有固定卡接结构13。
如图2、3、5、7、8所示，底座1与连接件4之间设置有复位装置16；具体的说，复位装置16为2～5个并排设置的复位压簧；复位压簧的两端分别与底座1和连接件4相连接；具体的说，在底座1与连接件4上各横设有一销轴10，复位压簧的两端分别连接底座1、连接件4上的销轴10。复位压簧包括一压簧本体18和设置在压簧本体两端的连接座17，连接座17上设有轴孔42，所述的销轴10穿设在连接座17的轴孔42内。
杠杆驱动件7与支架5一体设置；再或是杠杆驱动件7与支架5分体设置并固定连接。本实施例中杠杆驱动件7与支架5一体设置。
杠杆驱动件7与座支撑件2通过一组连杆20转动连接。连杆20包括第一连杆19和第二连杆29，第一连杆19与座支撑件2通过三颗螺钉固定相连，第二连杆29与杠杆驱动件7通过三颗螺钉固定相连，第一连杆19和第二连杆29通过转轴30转动连接。第一连杆19和第二连杆29其中任意一个上设置有限位孔31，对应的另一个上设置有限位销轴32，限位销轴32插在限位孔31内。
该座椅结构，通过设置一通过过渡连杆8与座椅前部转动连接的座支撑件2、一椅背组件和一杠杆驱动件，形成一个四连杆杠杆连杆臂结构（见图3、图4）。在使用过程中，人体作用在椅背组件上的力，在转动连接的杠杆驱动件和椅背组件以及座支撑件之间相互传递，从而带动座支撑件在底座上实现上下抬起，进而实现前后倾仰（见图5、图6）。
一种座椅，包括：
上述座椅结构；
椅子底座组件；椅子底座组件(未图示)包括支撑柱、从支撑柱下端径向延伸的多个支撑腿和支撑腿端部的脚轮，支撑柱连接底座，所述的支撑柱可以为气杆。
网布(未图示)，所述的网布由上到下绷在椅背组件、杠杆驱动件与座支撑件上，且所述的网布由上到下连为一体。
实施例2：
在图9、图10、图11所示的实施例中：
一种座椅结构，包括：
底座1，配置为连接到椅子底座组件；底座1呈Y形结构设置。
座支撑件2，座支撑件2设置于底座1上方；座支撑件2的前端向下向后弯折延伸设置为人体坐姿位结构，并且座支撑件2与底座1呈架体结构转动连接。
转接件22，转接件22设置于座支撑件2与底座1之间，且转接件22的两端分别与座支撑件2前部和底座1前部转动连接；
椅背组件3，所述椅背组件3与底座1后部通过枢轴6转动连接；
杠杆驱动件7，其连接于椅背组件3与座支撑件2之间，当椅背组件3从初始位置向后转动时，通过杠杆驱动件7将座支撑件2抬起并使座支撑件2后移；当椅背组件3复位时，又通过杠杆驱动件7将座支撑件2复位至初始位置。
椅背组件3配合人体背部结构设置的一体式构件，椅背组件3包括一背框上支架51、一背框下支架52和两侧扶手53，背框下支架52向前一体延伸设置有与底座1配合转动的连接结构。
底座1与椅背组件3转接处设置有复位装置16。复位装置16为一扭簧组件。扭簧组件包括一分别连接于底座1和椅背组件3上的扭簧座23，设于扭簧座23内部的扭簧24。
扭簧组件包括一分别连接于底座1和椅背组件3上的扭簧座23和设于扭簧座23内部的扭簧24。
扭簧座23包括一扭簧前座33和一扭簧后座34，扭簧前座33和扭簧后座34上分别设置一对转接壁35，扭簧前座33和扭簧后座34上的转接壁35转动连接后形成安装腔体36，扭簧24包括扭簧本体37和扭力臂38，扭簧24设置在安装腔体36内部，实现扭力复位。
杠杆驱动件7为一组连杆连杆20包括第一连杆19和第二连杆29，第一连杆19与座支撑件2固定相连，第二连杆29与杠杆驱动件7固定相连，第一连杆19和第二连杆29通过转轴30转动连接。第一连杆19和第二连杆29其中任意一个上设置有限位凸起39，对应的另一个上设置有限位槽40。
该座椅结构，也可以通过设置一与座椅前部转动连接的座支撑件、一转接件、一椅背组件和一杠杆驱动件，而椅背组件直接与底座后端转动连接，从而形成一个杠杆连杆臂结构。在使用过程中（见图14、15），人体作用在椅背组件上的力，在转动连接的杠杆驱动件和椅背组件以及座支撑件之间相互传递，从而带动座支撑件在底座上实现上下抬起，进而实现前后倾仰（见图12、图13）。
该实施例提供了一种座椅，包括：
一如上所述的座椅结构；
用于支撑座椅结构的底座组件；
网布(未图示)，所述的网布由上到下绷在椅背组件、杠杆驱动件与座支撑件上，且所述的网布由上到下连为一体。
上述实施例所述的座椅结构，当人体向后倾压椅背组件3时，椅背组件3在倾压力作用向后运动，向后的倾压力通过椅背组件3向下传递到杠杆驱动件7，杠杆驱动件7带动座支撑件2向上抬起并向后运动，实现人体及座椅结构的后倾；当人体向前倾时，椅背组件3上的倾压力消失，复位装置带动椅背组件3复位至初始位置。再进一步说，该座椅结构通过过渡连杆和过连杆一组杠杆连杆机构实现各组件之间的转动，并通过限位装置进行限位。既方便力的施加和传递，而在于使得各组件之间的动作更加流畅。
该座椅结构及其座椅，可以适合于任何材料制作，也可以适用于任何人，复位装置可以根据外观设计、人体体重等需要进行设置，以满足不同的使用要求以及不同人群的使用，并且能够满足人体坐姿舒适度的要求。
实施例3：本实施例与实施例1中在杠杆驱动件、椅背组件、座支撑件、过渡连杆以及底座等四连杆组成与结构关系方面基本相同，本实施例与实施例1主要区别点在于：如图16-25所示，在椅背组件3与底座1之间纵向配置有复位弹簧71，再具体的说，所述的复位弹簧71配置于比枢轴6更靠前方的位置。纵向配置并未限定为严格意义上的纵向，并不一定是指复位弹簧71的中心线与铅垂线重合，在广义上意指排除横向配置的程度，更恰当的是与椅背组件下端在转动时向上施力的方向基本保持一致。
具体的说，所述的复位弹簧71为压簧，底座1上端设有上限位板81，复位弹簧71设置在椅背组件3下端与上限位板81之间。
再具体的说，如图18-21所示，底座1包括一底板26和沿底板26两侧向上延伸的两侧板27。所述的椅背组件3包括连接件4与用于作为靠背或椅背的支架5，所述的连接件4包括左右对称的端板91及连接两端板91的连接板92，端板91与侧板27平行设置，所述的端板91与侧板27通过枢轴6转动连接；所述的上限位板81通过两端向下延伸的凸耳811与底座的两侧板27铰接设置，在连接件4上设有下限位板82，所述的下限位板82通过两端向上延伸的凸耳811与两侧的端板91铰接设置，复位弹簧71设置在上限位板81与下限位板82之间。
再进一步说，所述的复位弹簧71为并排设置的至少两个，其从左到右设置在底座1内，在上、下限位板81、82上相对设有至少两个定位柱83，复位弹簧71的上下两端分别与对应的定位柱83套接定位。

Claims (1)

1、 一种座椅结构，其特征是包括：
底座，配置为连接到椅子底座组件；
座支撑件，所述座支撑件设置于底座上方，且座支撑件前部与底座前部经由一过渡连杆转动连接；
椅背组件，与底座后部通过枢轴转动连接；
杠杆驱动件，其连接于所述椅背组件与座支撑件之间，并且杠杆驱动件与座支撑件后部转动连接，所述杠杆驱动件与座支撑件大致处于同一面上；当椅背组件从初始位置绕枢轴向后转动时，通过杠杆驱动件将座支撑件后部朝着斜向后方抬起，并同时拉起过渡连杆及座支撑件前部。
2、 根据权利要求1所述的一种座椅结构，其特征是：所述的椅背组件包括连接件与支架，所述的连接件通过枢轴与底座后部转动连接，所述的支架包括一背框上支架及处于背框上支架左右两旁的向下延伸的侧支架，所述的杠杆驱动件为左右对称的两个，且杠杆驱动件是由侧支架中下部位置向前延伸形成，两个侧支架的下端朝中间交汇并向前延伸与连接件相连；所述的座支撑件包括左右对称的两支撑杆，两支撑杆后部分别与两个杠杆驱动件转动连接，两支撑杆前部通过横杆连为一体；杠杆驱动件与支撑杆大致连为一条直线。
3、 根据权利要求1所述的一种座椅结构，其特征是：所述的座支撑件的前端向下向后弯折延伸设置为人体坐姿位结构。
4、 根据权利要求1所述的一种座椅结构，其特征是：所述的座支撑件与过渡连杆连接的一端设置有第一限位结构，所述的底座与过渡连杆转动连接处设置有第二限位结构。
5、 根据权利要求4所述的一种座椅结构，其特征是：所述的第一限位结构为弧形限位凸起。
6、 根据权利要求4所述的一种座椅结构，其特征是：所述的第二限位结构为弧形限位凸起或为限位销或为限位齿。
7、 根据权利要求2所述的一种座椅结构，其特征是：所述的底座包括一底板和两侧板，所述的底板在前后长度方向上呈弧形结构设置。
8、 根据权利要求7所述的一种座椅结构，其特征是：所述的连接件呈U形结构设置，所述的连接件的前端与底座的后端内外配合并且通过枢轴转动连接。
9、 根据权利要求8所述的一种座椅结构，其特征是：所述的连接件与底座转动配合处的两侧板上分别设置有枢接孔，枢轴穿设在枢接孔内。
10、 根据权利要求9所述的一种座椅结构，其特征是：所述的底座或连接件其中一个上设置有限位长孔，对应的另一个上设置有限位轴，所述的限位长孔设置在枢接孔前方，所述的连接件通过限位轴实现前后翘动的引导限位。
11、 根据权利要求2所述的一种座椅结构，其特征是：所述的连接件的后端两侧配合支架设置有固定卡接结构。
12、 根据权利要求2所述的一种座椅结构，其特征是：所述的底座与连接件之间设置有复位装置。
13、 根据权利要求12所述的一种座椅结构，其特征是：所述的复位装置为至少一个复位压簧。
14、 根据权利要求13所述的一种座椅结构，其特征是：复位压簧设置在底座、连接件围合的空间内，所述的复位压簧的两端分别与底座和连接件相连接。
15、 根据权利要求14所述的一种座椅结构，其特征是：在底座与连接件上各横设有一销轴，复位压簧的两端分别连接底座、连接件上的销轴。
16、 根据权利要求15所述的一种座椅结构，其特征是：所述的复位压簧包括一压簧本体和设置在压簧本体两端的连接座，连接座上设有轴孔，所述的销轴穿设在连接座的轴孔内。
17、 根据权利要求2所述的一种座椅结构，其特征是：所述的杠杆驱动件与支架一体设置。
18、 根据权利要求2所述的一种座椅结构，其特征是：所述的杠杆驱动件与支架分体设置并固定连接。
19、 根据权利要求1所述的一种座椅结构，其特征是：所述的杠杆驱动件与座支撑件通过一组连杆转动连接。
20、 根据权利要求19所述的一种座椅结构，其特征是：所述的连杆包括第一连杆和第二连杆，第一连杆与座支撑件固定相连，第二连杆与杠杆驱动件固定相连，所述的第一连杆和第二连杆通过转轴转动连接。
21、 根据权利要求20所述的一种座椅结构，其特征是：所述的第一连杆和第二连杆其中任意一个上设置有限位孔，对应的另一个上设置有限位销轴。
22、 一种座椅，其特征在于包括：
如权利要求1至21任一项所述的座椅结构；
用于支撑座椅结构的底座组件；
网布，所述的网布由上到下绷在椅背组件、杠杆驱动件与座支撑件上，且所述的网布由上到下连为一体。
23、 一种座椅结构，其特征是包括：
底座，配置为连接到椅子底座组件；
座支撑件，所述座支撑件设置于底座上方，且座支撑件前部与底座前部经由一过渡连杆转动连接；
椅背组件，与底座后部通过枢轴转动连接；
杠杆驱动件，其连接于所述椅背组件与座支撑件之间，并且杠杆驱动件与座支撑件后部转动连接，所述杠杆驱动件与座支撑件大致处于同一面上；当椅背组件从初始位置绕枢轴向后转动时，通过杠杆驱动件将座支撑件后部朝着斜向后方抬起，并同时拉起过渡连杆及座支撑件前部；
复位弹簧，纵向配置于椅背组件与底座之间；在椅背组件向后转动时复位弹簧产生反作用力。
24、 根据权利要求23所述的一种座椅结构，其特征是：所述的复位弹簧配置于比枢轴更靠前方的位置。
25、 根据权利要求23所述的一种座椅结构，其特征是：所述的复位弹簧为压簧。
26、 根据权利要求23所述的一种座椅结构，其特征是：底座上端设有上限位板，复位弹簧设置在椅背组件下端与上限位板之间。
27、 根据权利要求26所述的一种座椅结构，其特征是：所述的底座包括一底板和由底板两侧向上延伸的两侧板，所述的椅背组件包括连接件与用于作为靠背的支架，所述的连接件包括左右对称的端板及连接两端板的连接板，所述的端板与侧板通过枢轴转动连接；所述的上限位板通过两端的凸耳与底座的两侧板铰接设置，在连接件上设有下限位板，所述的下限位板通过两端的凸耳与端板铰接设置，复位弹簧设置在上限位板与下限位板之间。
28、 根据权利要求27所述的一种座椅结构，其特征是：所述的复位弹簧为并排设置的至少两个，在上、下限位板上相对设有至少两个定位柱，复位弹簧的上下两端分别与对应的定位柱套接定位。
29、 根据权利要求23所述的一种座椅结构，其特征是：所述的椅背组件包括连接件与支架，所述的连接件通过枢轴与底座后部转动连接，所述的支架包括一背框上支架及处于背框上支架左右两旁的向下延伸的侧支架，所述的杠杆驱动件为左右对称的两个，且杠杆驱动件是由侧支架中下部位置向前延伸形成，两个侧支架的下端朝中间交汇并向前延伸与连接件相连；所述的座支撑件包括左右对称的两支撑杆，两支撑杆后部分别与两个杠杆驱动件转动连接，两支撑杆前部通过横杆连为一体；杠杆驱动件与支撑杆大致连为一条直线。
30、 根据权利要求23所述的一种座椅结构，其特征是：所述的座支撑件的前端向下向后弯折延伸设置为人体坐姿位结构。
31、 根据权利要求23所述的一种座椅结构，其特征是：所述的座支撑件与过渡连杆连接的一端设置有第一限位结构，所述的底座与过渡连杆转动连接处设置有第二限位结构。
32、 根据权利要求31所述的一种座椅结构，其特征是：所述的第一限位结构为弧形限位凸起。
33、 根据权利要求31所述的一种座椅结构，其特征是：所述的第二限位结构为弧形限位凸起或为限位销或为限位齿。
34、 根据权利要求23所述的一种座椅结构，其特征是：底座包括底板及沿底板两侧向上延伸的侧板，所述的连接件与底座转动配合处的两侧板上分别设置有枢接孔，枢轴穿设在枢接孔内。
35、 根据权利要求34所述的一种座椅结构，其特征是：所述的底座或连接件其中一个上设置有限位长孔，对应的另一个上设置有限位轴，所述的限位长孔设置在枢接孔前方，所述的连接件通过限位轴实现前后翘动的引导限位。
36、 根据权利要求23所述的一种座椅结构，其特征是：所述的杠杆驱动件与座支撑件通过一组连杆转动连接。
37、 根据权利要求36所述的一种座椅结构，其特征是：所述的连杆包括第一连杆和第二连杆，第一连杆与座支撑件固定相连，第二连杆与杠杆驱动件固定相连，所述的第一连杆和第二连杆通过转轴转动连接。
38、 根据权利要求37所述的一种座椅结构，其特征是：所述的第一连杆和第二连杆其中任意一个上设置有限位孔，对应的另一个上设置有限位销轴。
39、 根据权利要求29所述的一种座椅结构，其特征是：所述的杠杆驱动件与支架一体设置；或者所述的杠杆驱动件与支架分体设置并固定连接。
40、 一种座椅，其特征在于包括：
如权利要求23至39任一项所述的座椅结构；
用于支撑座椅结构的底座组件；
网布，所述的网布由上到下绷在椅背组件、杠杆驱动件与座支撑件上，且所述的网布由上到下连为一体。
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