WO2022068830A1 - 一种座椅伸展联动机构及座椅支架 - Google Patents

一种座椅伸展联动机构及座椅支架 Download PDF

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Publication number
WO2022068830A1
WO2022068830A1 PCT/CN2021/121427 CN2021121427W WO2022068830A1 WO 2022068830 A1 WO2022068830 A1 WO 2022068830A1 CN 2021121427 W CN2021121427 W CN 2021121427W WO 2022068830 A1 WO2022068830 A1 WO 2022068830A1
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WO
WIPO (PCT)
Prior art keywords
seat
side plate
plate portion
assembly
connecting rod
Prior art date
Application number
PCT/CN2021/121427
Other languages
English (en)
French (fr)
Inventor
李晓鸿
张小强
吕战征
Original Assignee
锐迈机械科技（吴江）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
Priority claimed from CN202011069718.8A external-priority patent/CN112155356A/zh
Priority claimed from CN202011069268.2A external-priority patent/CN112294004A/zh
Application filed by 锐迈机械科技（吴江）有限公司 filed Critical 锐迈机械科技（吴江）有限公司
Publication of WO2022068830A1 publication Critical patent/WO2022068830A1/zh
Priority to US18/128,303 priority Critical patent/US20230232986A1/en

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    • 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
    • A47C7/144—Seat parts of adjustable shape; elastically mounted ; adaptable to a user contour or ergonomic seating positions with array of movable supports
    • 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
    • A47C1/034—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest
    • A47C1/035—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movably coupled seat and back-rest, i.e. the seat and back-rest being movably coupled in such a way that the extension mechanism of the foot-rest is actuated at least by the relative movements of seat and backrest
    • A47C1/0355—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movably coupled seat and back-rest, i.e. the seat and back-rest being movably coupled in such a way that the extension mechanism of the foot-rest is actuated at least by the relative movements of seat and backrest actuated by linkages, e.g. lazy-tongs mechanisms
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • A47C7/462—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
    • A47C7/506—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
    • A47C7/506—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type
    • A47C7/5066—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type by rotation
    • A47C7/5068—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type by rotation actuated by linkages

Definitions

  • the invention relates to the field of furniture manufacturing, in particular to a seat extension linkage mechanism and a seat bracket.
  • the linkage structure for adjusting the posture of the seat in the prior art is generally complicated in structure, resulting in unsmooth posture change of the seat support unit, high overall structure height, large volume, and large space occupation, which not only occupies space during transportation, but also increases the Transportation costs, and it is also bulky when used, which affects the overall appearance and comfort of the sofa.
  • the purpose of the present invention is to solve the problems of complex structure, high height, large volume and stuck posture adjustment of the seat bracket in the prior art.
  • the present invention provides a seat extension linkage mechanism, comprising a linkage assembly, a seat frame and a backrest mounting member, wherein the backrest mounting member is respectively rotatably connected with the linkage assembly and the seat frame;
  • the linkage assembly includes an assembly plate and a drive link
  • the assembly plate includes a side plate portion and a support portion
  • the drive link is rotatably connected between the seat frame and the side plate portion
  • the side plate portion It is connected with one end of the support portion
  • the other end of the support portion is rotatably connected with the backrest mounting member.
  • side plate portion and the support portion are fixedly connected or integrally formed into an L-shape.
  • the included angle between the side plate portion and the support portion is 90°-100°.
  • the backrest mounting member includes a first section, a second section and a third section that are integrally bent and formed; the first section is rotatably connected to the side edge of the seat frame, and the second section is rotatably connected to the side of the seat frame.
  • the section is pivotally connected to the support, and the third section is used for connection to the back frame of the seat.
  • the present application also provides a seat bracket, comprising a linkage assembly, a seat frame, a backrest mounting member and a first transmission member, wherein the backrest mounting member is respectively rotatably connected to the linkage assembly and the seat frame;
  • the linkage assembly includes an assembly plate and a drive link
  • the assembly plate includes a side plate portion and a support portion
  • the drive link is rotatably connected between the seat frame and the side plate portion
  • the side plate portion is connected with one end of the support portion
  • the other end of the support portion is rotatably connected with the backrest mounting member
  • One end of the first transmission member is used to connect with the pedal telescopic mechanism of the seat, and the other end of the first transmission member is connected to the side plate portion, and the linkage assembly and the pedal telescopic mechanism pass through the first transmission member.
  • the transmission part transmits the pulling force.
  • the second transmission member is obliquely arranged between the seat frame and the side plate portion, and one end of the second transmission member is connected with the side wall of the seat frame, so The other end of the second transmission member is connected to one end of the side plate portion close to the support portion.
  • both ends of the side plate portion are respectively provided with a first pivot point and a second pivot point;
  • the side plate portion is connected with the driving link through a first pivot point, and the side plate portion is connected with the support portion by bending through a second pivot point.
  • a first fixing member is also arranged on the side plate portion
  • the ratio of the distance from the first fixing piece to the first pivot point to the distance from the first fixing piece to the second pivot point is greater than that, and the first fixing piece is used for connecting with the first fixing piece. One end of the transmission part is connected.
  • a second fixing member is also arranged on the side plate portion
  • first transmission member and the second transmission member are elastic connecting members with elastic restoring force.
  • the footrest telescopic mechanism includes a link assembly, a main footrest and an auxiliary footrest assembly, and the link assembly is used to drive the main footrest and the auxiliary footrest assembly extending or retracting relative to the seat frame;
  • the connecting rod assembly includes a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, the first connecting rod is connected with the second connecting rod, and the third connecting rod is connected with the The fourth connecting rod is connected, the middle part of the second connecting rod is cross-connected with the middle part of the third connecting rod, the first connecting rod and the third connecting rod are respectively connected with the seat frame, and the second connecting rod is connected to the seat frame.
  • a rod and a fourth link are respectively connected with the main footrest.
  • the pedal telescopic mechanism also includes a transmission connector
  • the transmission connecting piece is arranged at one end of the pedal telescopic mechanism connected to the first transmission piece, one end of the transmission connecting piece is rotatably connected with the first link, and the other end of the transmission connecting piece is used for connected with the first transmission member.
  • linkage assembly the seat frame, the backrest mounting piece, the backrest mounting piece and the pedal telescopic mechanism are two groups and are arranged oppositely.
  • the two ends of the installation crossbar are respectively connected with the two support parts; the two ends of the drive crossbar are respectively connected with the middle parts of the two first connecting rods, and the driving mechanism is arranged on the drive crossbar and the two first connecting rods. between the mounting rails to allow the seat support to move between sitting, extended and lying positions.
  • the present invention has the following beneficial effects:
  • the invention optimizes and simplifies the structure of the seat extension linkage mechanism, reduces the production cost, and compresses the overall height of the seat bracket. Smooth and smooth, improving seat comfort.
  • FIG. 1 is a schematic diagram of a sitting posture structure of a seat extension linkage mechanism according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a linkage assembly according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a stretched posture structure of a seat support according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a part of the structure of the seat support according to the embodiment of the present invention in an extended posture
  • FIG. 5 is a schematic structural diagram of a partial structure of a seat support in a lying position according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a seat bracket sitting position according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of an extended posture position of a seat support according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a lying position of a seat support according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of the seat bracket, the armrest frame and the backrest frame of the present invention.
  • FIG. 10 is a structural comparison diagram of the existing seat bracket and the seat bracket of the present embodiment.
  • connection should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be an internal connection between two components.
  • installation and “connection” should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be an internal connection between two components.
  • the seat extension linkage mechanism and the seat bracket of the present invention can be applied to seats such as sofas, office chairs, leisure chairs and the like. Three positions can be achieved: sitting, stretching and lying. Among them, in the sitting position, the seat frame part is usually horizontal, and the seat back is generally vertical to the seat frame; in the extended position, the foot telescopic mechanism extends forward; The frame pivots back so that it is possible to lie down on a recline.
  • an embodiment of the present invention provides a seat extension linkage mechanism, which includes a linkage assembly 1, a seat frame 3 and a backrest mounting member 4, and the backrest mounting member 4 is respectively rotatably connected with the linkage assembly 1 and the seat frame 3;
  • the linkage assembly 1 includes an assembly plate 10 and a drive link 11
  • the assembly plate 10 includes a side plate portion 12 and a support portion 13
  • the drive link 11 is used for connecting with the seat frame 3 of the seat
  • the drive link 11 is rotatably connected between the seat frame 3 and the side plate portion 12
  • the side plate portion 12 is connected with the support portion 13, and the support portion 13 is used for rotational connection with the seat back mounting member 4.
  • the side plate portion 12 and the support portion 13 are fixedly connected or integrally formed into an L-shape.
  • the angle between the side plate portion 12 and the support portion 13 is 90°-100°.
  • the side plate portion 12 and the support portion 13 can be two separate parts, which are fixedly connected by fasteners, which can improve the utilization rate of materials in the production process.
  • the side plate portion 12 and the support portion 13 may also be an L-shaped assembly that is integrally bent and formed, which may be integrally forged and formed, and the production steps are reduced.
  • the support portion 13 extends in the direction of the side plate portion 12 and is fixedly connected to a position close to the middle portion of the side plate portion 12, and forms a bent shape, which can increase the overall structural strength of the linkage assembly.
  • the backrest mounting member 4 includes a first section 41, a second section 42 and a third section 43 that are integrally bent and formed; the first section 41 is rotatably connected to the side of the seat frame 3, and the second section 42 is rotatably connected to the support portion 13, and the third section 43 is used to connect with the back frame of the seat.
  • the third section of the backrest mounting member 41 may be configured such that the structure of the plug-in tabs may be plug-connected with the back frame of the seat.
  • the backrest mount 4 can be bent into a Z-shaped mount.
  • the embodiment of the present invention further provides a seat bracket, which includes a linkage assembly 1, a seat frame 3, a backrest mounting member 4 and a first transmission member 2, and the backrest mounting member 4 is respectively rotatably connected with the linkage assembly 1 and the seat frame 3;
  • the linkage assembly 1 includes an assembly plate 10 and a drive link 11,
  • the assembly plate 10 includes a side plate portion 12 and a support portion 13,
  • the drive link 11 is rotatably connected between the seat frame 3 and the side plate portion 12, and the side plate portion 12 and the support portion 13.
  • One end is connected, and the other end of the support portion 13 is rotatably connected with the backrest mounting member 4 .
  • the first transmission member 2 is used to connect with the pedal telescopic mechanism 5 of the seat, and the other end of the first transmission member 2 is connected to the side plate portion 12 , and the pedal telescopic mechanism 5 and the linkage assembly 1 pass through the first transmission.
  • Piece 2 transmits the pulling force.
  • the foot telescopic mechanism 5 of the seat and the linkage assembly 1 are connected through the first transmission member 2.
  • the first transmission member 2 may be an elastic connecting member with elastic restoring force.
  • the first transmission member 2 may be a spring with hooks or rings at both ends, and may also be a structure such as an elastic cord or an elastic zipper in some embodiments.
  • the second transmission member 22 is obliquely arranged between the seat frame 3 and the side plate portion 12 , and one end of the second transmission member 22 is connected to the side wall of the seat frame 3 , The other end of the second transmission member 22 is connected to one end of the side plate portion 12 close to the support portion 13 .
  • the second transmission member 22 is used to maintain an elastic restoring force between the seat frame 3 and the side plate portion 12 , which can make the seat frame retract more quickly and smoothly.
  • the second transmission member 22 is an elastic connecting member with elastic restoring force, which may be a spring, an elastic cord or other connecting member with elastic force.
  • both ends of the side plate portion 12 are respectively provided with a first pivot point 121 and a second pivot point 122 ; the side plate portion 12 communicates with the drive link through the first pivot point 121 11 is connected, and the side plate portion 12 is connected to the support portion 13 by bending through the second pivot point 122 .
  • the driving link 11 is rotatably connected with the middle side of the seat frame 3 .
  • the side plate portion 12 is used for fixed connection with the seat armrests on both sides, and the side plate portion 12 is provided with mounting hooks, positioning holes or positioning columns for connection with the seat armrest frame.
  • the side plate portion 12 is further provided with a first fixing member 123; the ratio of the distance from the first fixing member 123 to the first pivot point 121 to the distance from the first fixing member 123 to the second pivot point 122 is greater than 1,
  • the first fixing member 123 is used for connecting with one end of the first transmission member 2 .
  • the side plate portion 12 is also provided with a second fixing member 124; the ratio of the distance from the second fixing member 124 to the first pivot point 121 to the distance from the second fixing member 124 to the second pivot point 122 is greater than 2, and the second fixing member
  • the piece 124 is used to connect with one end of the second transmission piece 2 .
  • the first fixing member and the second fixing member may be fixing nails, fixing hooks, fixing pins or other parts with fixing or hooking functions.
  • the linkage assembly 1 is disposed between the seat frame 3 and the backrest mounting member 4 , and is used to support and drive the backrest mounting member 4 to rotate relative to the seat frame 3 during the seat position adjustment process.
  • the seat frame is driven to tilt and rotate upward through the pedal telescopic mechanism 5 , and the pedal telescopic mechanism 5 is tightened through the first transmission member 2 .
  • the seat frame is smoothly rotated and retracted under the elastic restoring force of the second transmission member and its own gravity.
  • the footrest telescopic mechanism 5 includes a link assembly 51, a main footrest 52 and a secondary footrest assembly 53.
  • the link assembly 51 is used to drive the main footrest
  • the link assembly 51 includes a first link 511, a second link 512, a third link 513 and a fourth link 514, the first link 511 is connected with the second link 512, the third link 513 is connected with the fourth link 514, the middle of the second link 512 is cross-connected with the middle of the third link 513, the first link 511 and the third link 513 are respectively connected with the seat frame 3 , and the second link 512 and the fourth link 514 are respectively connected with the main footrest 52 .
  • the auxiliary footrest assembly 53 includes an auxiliary footrest 531 and a footrest link 532 , wherein the auxiliary footrest 531 is connected with the main footrest 52 , and the auxiliary footrest 532 is connected with the fourth footrest through the footrest link 532 .
  • Link 514 is connected.
  • the main footrest 52 and the auxiliary footrest 532 are used to install the main footrest and the auxiliary footrest, respectively.
  • the footrest telescopic mechanism 5 may also have one, two or three different numbers of footrests, and the extension length of the footrest telescopic mechanism is also different.
  • the pedal telescopic mechanism 5 further includes a transmission connecting piece 54; The other end of the transmission connecting member 54 is used for connecting with the first transmission member 2 .
  • the linkage assembly 1 , the seat frame 3 , the backrest mounting member 4 , the backrest mounting member 4 and the pedal telescopic mechanism 5 are two groups and are arranged oppositely.
  • the seat bracket further includes a mounting crossbar 6, a driving crossbar 7 and a driving mechanism; both ends of the mounting crossbar 6 are respectively connected with the two support parts 13; The middle part of the connecting rod 511 is connected, and the driving mechanism is arranged between the driving cross bar 7 and the mounting cross bar 6, so that the seat support can move between the positions of the sitting posture, the extending posture and the lying posture.
  • the driving mechanism is a linear drive, which may be a push rod motor. In this embodiment, only one push rod motor is needed to realize the adjustment of the seat between three positions.
  • the motor end of the driving mechanism is connected with the mounting cross bar 6 through a mounting piece, and the push rod end of the driving mechanism is connected with the driving cross bar 7 by the mounting piece.
  • the driving mechanism can be controlled by a remote control or a switch button to drive the seat linkage bracket structure in the sitting, stretching and lying positions. adjust.
  • the push rod of the driving mechanism pushes the driving crossbar forward, and the driving crossbar drives the foot telescopic mechanism 5 to stretch forward, and the linkage assembly and the backrest mounting part remain stationary.
  • the driving mechanism continues to operate and the push rod is fully extended, pushing the driving crossbar 7 and the pedal telescopic mechanism 5 to extend upwards relatively, driving the seat frame 3 to rotate upward, so that the first transmission member 2 Lengthen, the backrest mount pivots down and back.
  • the seat bracket is adjusted and retracted from the lying position, since the head first and the upper body stand upright when sitting up, under the action of the elastic restoring force of the second transmission member and the self-gravity of the human body, the seat frame is rotated and retracted downward, making the backrest
  • the mounting member 4 is rotated and retracted first, and then the pedal telescopic mechanism 5 is retracted.
  • the backrest mounting part is retracted first, and the pedal telescopic mechanism is folded and retracted.
  • the first transmission member 2 and the second transmission member with elastic force in the process can make the seat bracket more smoothly in the process of position adjustment, and at the same time ensure the movement sequence of the backrest mounting member and the footrest telescopic mechanism during the unfolding and retracting of the seat.
  • the seat bracket of the present invention is fixed in the armrest frame on both sides of the seat, and the armrest frame 200 , the backrest frame 400 and the seat frame are installed, and then the soft package is decorated to make a sofa or a leisure seat.
  • the assembly plate is connected to the armrest frame and is fixed, and the back frame 400 can be set as a T-shaped frame viewed from the front of the seat, so that the two protruding ends of the T-shaped back frame are not connected to the armrest frame. Interference, the T-shaped back frame 400 can be rotated around the armrest frame 200 .
  • the seat bracket of the present invention has fewer parts of the linkage assembly, the backrest assembly is optimized to have only one backrest mounting part, and the height of the seat bracket is significantly reduced, as shown in the figure, the height dimension is compressed The amount is greater than 2cm.
  • the invention optimizes and simplifies the structure of the seat extension linkage mechanism, compresses the overall height of the seat bracket, and reduces the production cost. Smooth and smooth, improving seat comfort.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

一种座椅伸展联动机构及座椅支架，包括联动组件(1)、座框(3)和靠背安装件(4)，靠背安装件(4)分别与联动组件(1)和座框(3)转动连接；联动组件(1)包括装配板(10)和驱动连杆(11)，装配板(10)包括侧板部(12)和支撑部(13)，驱动连杆(11)转动连接在座框(3)和侧板部(12)之间，侧板部(12)与支撑部(13)的一端连接，支撑部(13)的另一端与靠背安装件(4)转动连接。该联动机构及座椅支架优化精简了座椅伸展联动机构的结构，压缩了座椅支架的整体高度，通过第一传动件（2）连接脚踏伸缩机构（5）和联动组件（1），使得座椅在不同位置之间调整时更加平稳和顺畅，提高了座椅舒适度。

Description

一种座椅伸展联动机构及座椅支架 技术领域
本发明涉及家具制造领域，具体涉及一种座椅伸展联动机构及座椅支架。
背景技术
随着人们生活水平逐步提高，智能家具包括沙发、躺椅、办公椅、剧院椅等座椅的功能越来越多，不仅可以满足不同姿势需求，还能更好的放松身体。
目前，现有技术中调节座椅姿势的联动结构，一般结构较复杂，导致座椅支架单元姿势变换不流畅、整体结构高度较高、体积大、占用空间大，不仅在运输时占用空间，增加运输成本，而且在使用时也较笨重，影响沙发整体外观和舒适度。
发明内容
本发明的目的在于解决现有技术中座椅支架结构复杂、高度较高、体积大和座椅姿势调节卡顿的问题。
为了实现上述目的，本发明提供了一种座椅伸展联动机构，包括联动组件、座框和靠背安装件，所述靠背安装件分别与所述联动组件和所述座框转动连接；
所述联动组件包括装配板和驱动连杆，所述装配板包括侧板部和支撑部，所述驱动连杆转动连接在所述座框和所述侧板部之间，所述侧板部与所述支撑部的一端连接，所述支撑部的另一端与所述靠背安装件转动连接。
进一步地，所述侧板部与所述支撑部固定连接或一体成型为L形。
进一步地，所述侧板部与所述支撑部的夹角为90°-100°。
进一步地，所述靠背安装件包括一体弯折成型的第一部段、第二部段 和第三部段；所述第一部段与所述座框的侧边转动连接，所述第二部段与支撑部转动连接，所述第三部段用于与座椅的靠背框架连接。
本申请还提供一种座椅支架，包括联动组件、座框、靠背安装件和第一传动件，所述靠背安装件分别与所述联动组件和所述座框转动连接；
所述联动组件包括装配板和驱动连杆，所述装配板包括侧板部和支撑部，所述驱动连杆转动连接在所述座框和所述侧板部之间，所述侧板部与所述支撑部的一端连接，所述支撑部的另一端与所述靠背安装件转动连接；
所述第一传动件一端用于与座椅的脚踏伸缩机构连接，所述第一传动件的另一端与所述侧板部连接，所述联动组件和脚踏伸缩机构通过所述第一传动件传递拉力。
进一步地，还包括第二传动件，所述第二传动件倾斜设置在所述座框与所述侧板部之间，所述第二传动件一端与所述座框的侧壁连接，所述第二传动件另一端与所述侧板部靠近所述支撑部的一端连接。
进一步地，所述侧板部的两端分别设置有第一枢转点和第二枢转点；
所述侧板部通过第一枢转点与所述驱动连杆连接，所述侧板部通过第二枢转点与所述支撑部弯折连接。
进一步地，所述侧板部上还设置第一固定件；
所述第一固定件到所述第一枢转点的距离与所述第一固定件到所述第二枢转点的距离之比大于，所述第一固定件用于与所述第一传动件的一端连接。
进一步地，所述侧板部上还设置第二固定件；
所述第二固定件到所述第一枢转点的距离与所述第二固定件到所述第二枢转点的距离之比大于，所述第二固定件用于与所述第二传动件的一端连接。
进一步地，所述第一传动件和第二传动件为具有弹性恢复力的弹性连接件。
进一步地，还包括脚踏伸缩机构，所述脚踏伸缩机构包括连杆组件、主搁脚件和副搁脚组件，所述连杆组件用于带动所述主搁脚件和副搁脚组件相对于所述座框伸展或收缩；
所述连杆组件包括第一连杆、第二连杆、第三连杆和第四连杆，所述第一连杆与所述第二连杆连接，所述第三连杆与所述第四连杆连接，所述第二连杆的中部与所述第三连杆的中部交叉连接，所述第一连杆和第三连杆分别与所述座框连接，所述第二连杆和第四连杆分别与所述主搁脚件连接。
进一步地，所述脚踏伸缩机构还包括传动连接件；
所述传动连接件设置在所述脚踏伸缩机构与所述第一传动件连接的一端，所述传动连接件一端与所述第一连杆转动连接，所述传动连接件的另一端用于与所述第一传动件连接。
进一步地，所述联动组件、座框、靠背安装件、靠背安装件和脚踏伸缩机构均为两组且相对设置。
进一步地，还包括安装横杆、驱动横杆和驱动机构；
所述安装横杆的两端分别与两个所述支撑部连接；所述驱动横杆的两端分别与两个第一连杆的中部连接，所述驱动机构设置在所述驱动横杆和所述安装横杆之间，以使所述座椅支架在坐姿、伸展姿和躺姿的位置之间移动。
与现有技术相比，本发明具有如下有益效果：
本发明优化精简了座椅伸展联动机构的结构，降低了生产成本，压缩了座椅支架的整体高度，通过传动件连接脚踏伸缩机构和联动组件，使座椅从躺姿位置收回时，更加平稳和顺畅，提高了座椅的舒适度。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方式，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它附图。
图1为本发明实施例一种座椅伸展联动机构的坐姿结构示意图；
图2为本发明实施例联动组件的结构示意图；
图3为本发明实施例一种座椅支架的伸展姿结构示意图；
图4为本发明实施例座椅支架部分结构在伸展姿的结构示意图；
图5为本发明实施例座椅支架部分结构在躺姿位置的结构示意图；
图6为本发明实施例一种座椅支架坐姿位置的结构示意图；
图7为本发明实施例一种座椅支架伸展姿位置的结构示意图；
图8为本发明实施例一种座椅支架躺姿位置的结构示意图；
图9为本发明座椅支架与扶手框架和靠背框架的结构示意图；
图10为现有座椅支架与本实施例座椅支架的结构对比图。
图中：1-联动组件，2-第一传动件，22-第二传动件，10-装配板，11-驱动连杆，12-侧板部，13-支撑部，3-座框，4-靠背安装件，5-脚踏伸缩机构，121-第一枢转点，122-第二枢转点，123-第一固定件，124-第二固定件，41-第一部段，42-第二部段，43-第三部段，51-连杆组件，511-第一连杆，512-第二连杆，513-第三连杆，514-第四连杆，52-主搁脚件，53-副搁脚组件，531-副搁脚件，532-搁脚连杆，54-传动连接件，6-安装横杆，7-驱动横杆，200-扶手框架，400-靠背框架。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚明了，下面结合具体实施方式并参照附图，对本发明进一步详细说明。应该理解，这些描述只是示例性的，而并非要限制本发明的范围。
在本发明的描述中，需要理解的是，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。
此外，在本发明中，除非另有明确的规定和限定，术语“安装”、“连接”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
本发明座椅伸展联动机构和座椅支架可以应用于沙发、办公椅、休闲椅等座椅上。可以实现坐姿、伸展姿和躺姿三种位置。其中，坐姿位置，座框部分通常水平，椅背与座框大体垂直；伸展姿位置，脚踏伸缩机构向前伸展；躺姿位置，在伸展姿的基础上，椅背和靠背安装件相对座框向后转动，使可以倾斜躺下。
实施例
如图1所示，本发明实施例提供了一种座椅伸展联动机构，包括联动组件1、座框3和靠背安装件4，靠背安装件4分别与联动组件1和座框3转动连接；如图2所示，联动组件1包括装配板10和驱动连杆11，装配板10包括侧板部12和支撑部13，驱动连杆11用于与座椅的座框3连接，驱动连杆11转动连接在座框3和侧板部12之间，侧板部12与支撑部13连接，支撑部13用于与座椅的靠背安装件4转动连接。
具体地，侧板部12与支撑部13固定连接或一体成型为L形。侧板部12与支撑部13的夹角为90°-100°。侧板部12与支撑部13可以为两个单独的零件，通过紧固件固定连接，生产过程中可以提高材料的利用率。在一些实施例中，侧板部12与支撑部13也可以为一体弯折成型的L形装配件，可以是一体锻压成型，生产步骤减少。在本实施例中，支撑部13向侧板部12的方向延伸与接近侧板部12的中部的位置固定连接，并形成弯折形，可以增加联动组件的整体结构强度。
具体地，靠背安装件4包括一体弯折成型的第一部段41、第二部段42和第三部段43；第一部段41与座框3的侧边转动连接，第二部段42与支撑部13转动连接，第三部段43用于与座椅的靠背框架连接。具体地，靠背安装件41的第三部段可以设置成插接片的结构可以与座椅的靠背框架插接连接。靠背安装件4可以弯折成类似Z形的安装件。
本发明实施例还提供一种座椅支架，包括联动组件1、座框3、靠背安装件4和第一传动件2，靠背安装件4分别与联动组件1和座框3转动连接；联动组件1包括装配板10和驱动连杆11，装配板10包括侧板部12和支撑部13，驱动连杆11转动连接在座框3和侧板部12之间，侧板部12与支撑部13的一端连接，支撑部13的另一端与靠背安装件4转动连接。
具体地，第一传动件2一端用于与座椅的脚踏伸缩机构5连接，第一传动件2的另一端与侧板部12连接，脚踏伸缩机构5和联动组件1通过第一传动件2传递拉力。座椅的脚踏伸缩机构5与联动组件1之间通过第一传动件2连接，座椅的脚踏伸缩机构5向前伸展时，第一传动件2被拉伸开。具体地，第一传动件2可以为具有弹性恢复力的弹性连接件。在本实施例中，第一传动件2可以为两端具有挂钩或挂环的弹簧，在一些实施例中也可以为弹力绳或弹性拉锁等结构。
具体地，如图4所示，还包括第二传动件22，第二传动件22倾斜设置在座框3与侧板部12之间，第二传动件22一端与座框3的侧壁连接，第二传动件22另一端与侧板部12靠近支撑部13的一端连接。第二传动件22用于使座框3与侧板部12之间保持弹性恢复力，可以使座框在收回的过程中更加快速和顺利。第二传动件22为具有弹性恢复力的弹性连接件，可以为弹簧、弹力绳或其他具有弹力的连接件。
具体地，如图4和5所示，侧板部12的两端分别设置有第一枢转点121和第二枢转点122；侧板部12通过第一枢转点121与驱动连杆11连接，侧板部12通过第二枢转点122与支撑部13弯折连接。驱动连杆11与座框3的中部侧边转动连接。在实际应用中，侧板部12用于与两侧座椅扶手固定连接，侧板部12上设置用于与座椅扶手框架连接的安装钩、定位孔或定位柱。
具体地，侧板部12上还设置第一固定件123；第一固定件123到第一枢转点121的距离与第一固定件123到第二枢转点122的距离之比大于1，第一固定件123用于与第一传动件2的一端连接。侧板部12上还设置第二固定件124；第二固定件124到第一枢转点121的距离与第二固定件124到第二枢转点122的距离之比大于2，第二固定件124用于与第二传动件2的一端连接。具体地，第二固定件124到第二枢转点122的距离更近，且第二固定件124的固定位置靠近侧板部12的下边缘。第一固定件和第二固定件可以为固定钉、固定挂钩、固定销或其他具有固定或挂接功能的零件。
具体地，在本实施例中，联动组件1设置在座框3与靠背安装件4之间，在座椅位置调节过程中用于支撑和带动靠背安装件4相对座框3转动。 座椅在伸展的过程中通过脚踏伸缩机构5带动座框倾斜向上转动，通过第一传动件2拉紧脚踏伸缩机构5。当座椅从躺姿位置收回时，座框在第二传动件的弹性恢复力和自身重力下顺利转动收回。
具体地，还包括脚踏伸缩机构5，如图3所示，脚踏伸缩机构5包括连杆组件51、主搁脚件52和副搁脚组件53，连杆组件51用于带动主搁脚件52和副搁脚组件53相对于座框3伸展或收缩；连杆组件51包括第一连杆511、第二连杆512、第三连杆513和第四连杆514，第一连杆511与第二连杆512连接，第三连杆513与第四连杆514连接，第二连杆512的中部与第三连杆513的中部交叉连接，第一连杆511和第三连杆513分别与座框3连接，第二连杆512和第四连杆514分别与主搁脚件52连接。
具体地，副搁脚组件53包括副搁脚件531和搁脚连杆532，其中，副搁脚件531与主搁脚件52连接，副搁脚件532通过搁脚连杆532与第四连杆514连接。在本实施例中，主搁脚件52和副搁脚件532分别用于安装主搁脚板和副搁脚板。在一些实施例，脚踏伸缩机构5也可能会具有一个、两个或三个等不同数量的搁脚板，脚踏伸缩机构的伸展长度也不同。
具体地，脚踏伸缩机构5还包括传动连接件54；传动连接件54设置在脚踏伸缩机构5与第一传动件2连接的一端，传动连接件54一端与第一连杆511转动连接，传动连接件54的另一端用于与第一传动件2连接。
具体地，本实施例联动组件1、座框3、靠背安装件4、靠背安装件4和脚踏伸缩机构5均为两组且相对设置。
具体地，座椅支架还包括安装横杆6、驱动横杆7和驱动机构；安装横杆6的两端分别与两个支撑部13连接；驱动横杆7的两端分别与两个第一连杆511的中部连接，驱动机构设置在驱动横杆7和安装横杆6之间，以使座椅支架在坐姿、伸展姿和躺姿的位置之间移动。具体地，驱动机构为线性驱动器，可以为推杆电机，本实施例中仅需要一个推杆电机便可以实现座椅在三种位置之间的调节。驱动机构的电机端通过一安装件与安装横杆6连接，驱动机构的推杆端通过安装件与驱动横杆7连接。
具体地，如图6-8为座椅支架的三种位置图，在实际应用中，可以通过遥控器或开关按钮控制驱动机构，驱动座椅联动支架结构在坐姿、伸展姿 和躺姿的位置调节。当座椅支架从坐姿调整到伸展姿位置，驱动机构的推杆向前推动驱动横杆，驱动横杆带动脚踏伸缩机构5向前伸展，联动组件和靠背安装件保持不动。当座椅从伸展姿调节到躺姿位置时，驱动机构继续运行推杆完全伸出，推动驱动横杆7和脚踏伸缩机构5相对向上伸展，带动座框3向上转动，使得第一传动件2拉长，靠背安装件向下和向后转动。当座椅支架从躺姿位置调节收回时，由于坐起时先抬头和上身直立，因此在第二传动件的弹性恢复力和人体的自身重力作用下，使得座框向下转动收回，使得靠背安装件4先转动收回，然后脚踏伸缩机构5收回。在躺姿位置，由于第一传动件2紧拉脚踏伸缩机构，因此靠背安装件先收回，脚踏伸缩机构后折叠收回。过程中具有弹力的第一传动件2和第二传动件可以使座椅支架在位置调节过程中更顺利，同时保证了座椅的展开和收回中靠背安装件和脚踏伸缩机构的运动顺序。
具体地，如图9所示，本发明座椅支架固定在在座椅两侧的扶手框架内，通过安装扶手框架200、靠背框架400和座位框架，然后软包装饰，制作成沙发或休闲座椅。需要说明的是，本实施例装配板与扶手框架连接，且固定不动，靠背框架400可以设置为从座椅正面看是T形的框架，使得T形靠背框架的两突出端与扶手框架不干涉，T型靠背框架400可以绕扶手框架200转动。
如图10所示，本发明座椅支架与原有座椅支架相比，联动组件的零件减少，靠背组件优化为只有一个靠背安装件，且座椅支架的高度明显降低，如图高度尺寸压缩量大于2cm。本发明优化精简了座椅伸展联动机构的结构，压缩了座椅支架的整体高度，降低了生产成本，通过传动件连接脚踏伸缩机构和联动组件，使座椅从躺姿位置收回时，更加平稳和顺畅，提高了座椅的舒适度。

Claims (14)

  1. 一种座椅伸展联动机构，其特征在于，包括联动组件(1)、座框(3)和靠背安装件(4)，所述靠背安装件(4)分别与所述联动组件(1)和所述座框(3)转动连接；
    所述联动组件(1)包括装配板(10)和驱动连杆(11)，所述装配板(10)包括侧板部(12)和支撑部(13)，所述驱动连杆(11)转动连接在所述座框(3)和所述侧板部(12)之间，所述侧板部(12)与所述支撑部(13)的一端连接，所述支撑部(13)的另一端与所述靠背安装件(4)转动连接。
  2. 根据权利要求1所述的一种座椅伸展联动机构，其特征在于，所述侧板部(12)与所述支撑部(13)固定连接或一体成型为L形。
  3. 根据权利要求2所述的一种座椅伸展联动机构，其特征在于，所述侧板部(12)与所述支撑部(13)的夹角为90°-100°。
  4. 根据权利要求1所述的一种座椅伸展联动机构，其特征在于，所述靠背安装件(4)包括一体弯折成型的第一部段(41)、第二部段(42)和第三部段(43)；所述第一部段(41)与所述座框(3)的侧边转动连接，所述第二部段(42)与支撑部(13)转动连接，所述第三部段(43)用于与座椅的靠背框架连接。
  5. 一种座椅支架，其特征在于，包括联动组件(1)、座框(3)、靠背安装件(4)和第一传动件(2)，所述靠背安装件(4)分别与所述联动组件(1)和所述座框(3)转动连接；
    所述联动组件(1)包括装配板(10)和驱动连杆(11)，所述装配板(10)包括侧板部(12)和支撑部(13)，所述驱动连杆(11)转动连接在所述座框(3)和所述侧板部(12)之间，所述侧板部(12)与所述支撑部(13)的一端连接，所述支撑部(13)的另一端与所述靠背安装件(4)转动连接；
    所述第一传动件(2)一端用于与座椅的脚踏伸缩机构(5)连接，所述第一传动件(2)的另一端与所述侧板部(12)连接，所述联动组件(1)和脚踏伸缩机构(5)通过所述第一传动件(2)传递拉力。
  6. 根据权利要求5所述的一种座椅支架，其特征在于，还包括第二传动件(22)，所述第二传动件(22)倾斜设置在所述座框(3)与所述侧板部(12)之间，所述第二传动件(22)一端与所述座框(3)的侧壁连接，所述第二传动件(22)另一端与所述侧板部(12)靠近所述支撑部(13)的一端连接。
  7. 根据权利要求6所述的一种座椅支架，其特征在于，所述侧板部(12)的两端分别设置有第一枢转点(121)和第二枢转点(122)；
    所述侧板部(12)通过第一枢转点(121)与所述驱动连杆(11)连接，所述侧板部(12)通过第二枢转点(122)与所述支撑部(13)弯折连接。
  8. 根据权利要求7所述的一种座椅支架，其特征在于，所述侧板部(12)上还设置第一固定件(123)；
    所述第一固定件(123)到所述第一枢转点(121)的距离与所述第一固定件(123)到所述第二枢转点(122)的距离之比大于1，所述第一固定件(123)用于与所述第一传动件(2)的一端连接。
  9. 根据权利要求7所述的一种座椅支架，其特征在于，所述侧板部(12)上还设置第二固定件(124)；
    所述第二固定件(124)到所述第一枢转点(121)的距离与所述第二固定件(124)到所述第二枢转点(122)的距离之比大于2，所述第二固定件(124)用于与所述第二传动件(22)的一端连接。
  10. 根据权利要求7所述的一种座椅支架，其特征在于，所述第一传动件(2)和第二传动件(22)为具有弹性恢复力的弹性连接件。
  11. 根据权利要求5所述的一种座椅支架，其特征在于，还包括脚踏伸缩机构(5)，所述脚踏伸缩机构(5)包括连杆组件(51)、主搁脚件(52) 和副搁脚组件(53)，所述连杆组件(51)用于带动所述主搁脚件(52)和副搁脚组件(53)相对于所述座框(3)伸展或收缩；
    所述连杆组件(51)包括第一连杆(511)、第二连杆(512)、第三连杆(513)和第四连杆(514)，所述第一连杆(511)与所述第二连杆(512)连接，所述第三连杆(513)与所述第四连杆(514)连接，所述第二连杆(512)的中部与所述第三连杆(513)的中部交叉连接，所述第一连杆(511)和第三连杆(513)分别与所述座框(3)连接，所述第二连杆(512)和第四连杆(514)分别与所述主搁脚件(52)连接。
  12. 根据权利要求11所述的一种座椅支架，其特征在于，所述脚踏伸缩机构(5)还包括传动连接件(54)；
    所述传动连接件(54)设置在所述脚踏伸缩机构(5)与所述第一传动件(2)连接的一端，所述传动连接件(54)一端与所述第一连杆(511)转动连接，所述传动连接件(54)的另一端用于与所述第一传动件(2)连接。
  13. 根据权利要求11所述的一种座椅支架，其特征在于，所述联动组件(1)、座框(3)、靠背安装件(4)、靠背安装件(4)和脚踏伸缩机构(5)均为两组且相对设置。
  14. 根据权利要求13所述的一种座椅支架，其特征在于，还包括安装横杆(6)、驱动横杆(7)和驱动机构；
    所述安装横杆(6)的两端分别与两个所述支撑部(13)连接；所述驱动横杆(7)的两端分别与两个第一连杆(511)的中部连接，所述驱动机构设置在所述驱动横杆(7)和所述安装横杆(6)之间，以使所述座椅支架在坐姿、伸展姿和躺姿的位置之间移动。
PCT/CN2021/121427 2020-09-30 2021-09-28 一种座椅伸展联动机构及座椅支架 WO2022068830A1 (zh)

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