WO2024032135A1 - 沙发 - Google Patents

沙发 Download PDF

Info

Publication number
WO2024032135A1
WO2024032135A1 PCT/CN2023/099578 CN2023099578W WO2024032135A1 WO 2024032135 A1 WO2024032135 A1 WO 2024032135A1 CN 2023099578 W CN2023099578 W CN 2023099578W WO 2024032135 A1 WO2024032135 A1 WO 2024032135A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat frame
rod
rotating shaft
leg link
link
Prior art date
Application number
PCT/CN2023/099578
Other languages
English (en)
French (fr)
Inventor
沈斌
周炜尧
杨利明
Original Assignee
德沃康科技集团有限公司
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 德沃康科技集团有限公司 filed Critical 德沃康科技集团有限公司
Publication of WO2024032135A1 publication Critical patent/WO2024032135A1/zh

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C17/00—Sofas; Couches; Beds
    • A47C17/04—Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C17/00—Sofas; Couches; Beds
    • A47C17/86—Parts or details for beds, sofas or couches only not fully covered in a single one of the sub-groups A47C17/02, A47C17/04, A47C17/38, A47C17/52, A47C17/64, or A47C17/84; Drawers in or under beds

Definitions

  • the present application relates to the technical field of furniture, for example, to a sofa.
  • the mechanical extension device is usually equipped with an electric drive component, which uses the drive component to push the mechanical extension device to extend or retract, so that the sofa seat has different postures and meets people's comfort requirements.
  • Sofas in the related art usually have three switching states, which can achieve smooth changes between sitting, relaxing (TV posture) and lying postures to meet various needs of sitting, relaxing and lying down.
  • the above-mentioned sofas are often designed using a combination of ergonomics, planar rod kinematics and other methods to make the sofa more comfortable. .
  • the mechanical extension device includes a leg extension mechanism and a seat frame and backrest lifting mechanism.
  • the driving assembly drives the leg extension mechanism to open, so that the leg rest plate flips to the front, making it easier for the user to lift it up. Put the legs.
  • the driving assembly continues to drive, causing the seat frame and backrest lifting mechanism to lift the seat frame and backrest, and the seat frame and backrest tilt backward to enable the user to lie down (at this time, the leg extension mechanism is in the open state ).
  • the seat frame and backrest are split structures.
  • the seat frame and backrest lifting mechanism needs to be connected to the seat frame and backrest.
  • the sofa The size is large, and the seat frame and backrest must be tilted backward simultaneously, which adds a certain degree of difficulty to the design, and is also not conducive to later maintenance, inspection, and maintenance.
  • This application provides a sofa that can realize switching between three functions of sitting, leisure and lying down, simplify the structure of the sofa, reduce the difficulty of design, and facilitate later maintenance, repair and maintenance.
  • One embodiment of the present application provides a sofa, including: two armrest units arranged at intervals; an extension device connected between the two armrest units, the extension device including two extension brackets arranged at intervals, each The extension brackets respectively include connected leg extension mechanisms; a footrest unit, which is connected to the front end of the leg extension mechanism and has a stowed state and a footrest state; and a seat frame back unit, which is integrated and clipped The seat frame part and the backrest part are arranged at an angle, and the extension device is connected to the bottom of the seat frame part.
  • Figure 1 is an external schematic diagram of a sofa provided by an embodiment of the present application
  • Figure 2 is an exploded schematic diagram of a sofa provided by an embodiment of the present application.
  • Figure 3 is a first isometric view (in a sitting position) of the stretching device provided by an embodiment of the present application;
  • Figure 4 is an exploded schematic diagram of a stretching device provided by an embodiment of the present application.
  • Figure 5 is a second isometric view (in a leisure position) of the stretching device provided by an embodiment of the present application
  • Figure 6 is a partial enlarged view of position A in Figure 5;
  • Figure 7 is a third isometric view (in a leisure position) of the stretching device provided by an embodiment of the present application.
  • Figure 8 is a schematic plan view of the extension bracket provided in a sitting position according to an embodiment of the present application.
  • Figure 9 is a schematic plan view of the extension bracket provided by an embodiment of the present application in a leisure position
  • Figure 10 is a schematic plan view of the extension bracket provided by an embodiment of the present application in a lying position
  • Figure 11 is a partial enlarged view of B in Figure 10;
  • Figure 12 is a schematic diagram of the sofa provided in a sitting position according to an embodiment of the present application.
  • Figure 13 is a schematic diagram of the sofa in a leisure position according to an embodiment of the present application.
  • Figure 14 is a schematic diagram of the sofa in a lying position according to an embodiment of the present application.
  • Fourth rod; 2451. Strip limit hole; 251. The first fixed rod; 252. The second fixed rod; 253. The third fixed rod; 254. The first connecting arm; 255. Second connecting arm; 41. Seat frame; 42. Backrest; 51. The first rotating axis; 52. The second rotating axis; 53. The third rotating axis; 54. The fourth rotating axis; 55. The fifth rotating axis; 56. The sixth rotating axis; 57. The seventh rotating axis; 58. The eighth rotating axis; 59.
  • connection should be understood in a broad sense.
  • it can be a fixed connection, a detachable connection, or an integral body.
  • It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements.
  • the specific meanings of the above terms in this application can be understood on a case-by-case basis.
  • the term “above” or “below” a first feature on a second feature may include direct contact between the first and second features, or may also include the first and second features. Not in direct contact but through additional characteristic contact between them.
  • the terms “above”, “above” and “above” a first feature on a second feature include the first feature being directly above and diagonally above the second feature, or simply mean that the first feature is higher in level than the second feature.
  • “Below”, “under” and “under” the first feature is the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature is less horizontally than the second feature.
  • this embodiment provides a sofa, including two armrest units 1 spaced apart, an extension device 2 provided between the two armrest units 1, a footrest unit 3 and a seat frame and back unit. 4.
  • the extension device 2 is connected between the two armrest units 1.
  • the stretching device 2 includes two stretching brackets arranged at intervals, and each stretching bracket includes a connected leg stretching mechanism 23 .
  • the footrest unit 3 is connected to the front ends of the two leg extension mechanisms 23, and has a stowed state (see Figure 12) and a footrest state (see Figure 13).
  • the extension and retraction of the leg extension mechanism 23 can drive the footrest unit 3 to switch between the stowed state and the footrest state.
  • the seat frame and back unit 4 includes a seat frame portion 41 and a backrest portion 42 that are integrated and arranged at an angle.
  • the extension device 2 is connected to the bottom of the seat frame portion 41 .
  • the footrest unit 3 by driving the leg extension mechanism 23 to extend, the footrest unit 3 can be flipped from the stowed state to the footrest state, that is, the footrest unit 3 can be flipped to the front of the seat frame 41 , and the user can rest his or her legs. on the footrest unit 3 to improve comfort.
  • the seat frame part 41 and the backrest part 42 are provided as separate structures
  • the seat frame part 41 and the backrest part 42 of the sofa provided in this embodiment are integrated, and the extension device 2 and the seat frame part are It only needs to be connected to the bottom of 41. There is no need to connect to the seat frame part 41 and the backrest part 42 at the same time. No additional connection structure is added. While realizing the switching of the three functions of sitting, leisure and lying down, the sofa structure is simplified and the cost is reduced. The design difficulty is conducive to later maintenance, inspection and maintenance.
  • the stretching device 2 further includes a driving assembly 21 and a transmission link 22 .
  • the transmission link 22 is connected between the two extension brackets and is configured to drive the two extension brackets to expand or retract simultaneously.
  • Each extension bracket also includes a seat frame back lifting mechanism 24 , which is connected to the bottom of the seat frame portion 41 .
  • the two extension brackets have the same structure.
  • the driving assembly 21 drives the leg extension mechanism 23 to extend through the transmission link 22, so that the footrest unit 3 is flipped from the storage state to the foot resting state (from the sitting state in Figure 12 to the resting state). 13 ), that is, the footrest unit 3 is flipped to the front of the seat frame 41 , and the user can place their legs on the footrest unit 3 to improve comfort.
  • the driving assembly 21 can drive the seat frame back lifting mechanism 24 to extend through the transmission link 22, so that the seat frame back unit 4 tilts backward within a preset angle range (see Figure 13 (from the leisure state to the lying state in Figure 14) so that the user can lie down safely.
  • the leg extension mechanism 23 always remains in the unfolded state. That is, in the lying position, the user can lie down with his back or place his legs on the footrest unit 3 .
  • the sofa provided in this embodiment only needs to connect the seat frame back lifting mechanism 24 to the bottom of the seat frame part 41. It does not need to be connected to the seat frame part 41 and the backrest part 42 at the same time. No additional connection structure is added, and the sitting and leisure functions can be realized. While switching between the three functions of sitting and lying down, the sofa structure is simplified, the design difficulty is reduced, and it is convenient for later maintenance, inspection and maintenance.
  • the extension device 2 further includes a bottom bracket 25 fixedly connected to the armrest unit 1 .
  • the bottom bracket 25 includes a first fixing rod 251 extending in the front-to-back direction.
  • the fixed rod 251 serves as a mounting link of the seat frame backrest lifting mechanism 24, thereby achieving the fixation of the entire extension device 2 between the two armrest units 1.
  • the bottom bracket 25 also includes a second fixed rod 252 and a third fixed rod 253. The first end of the second fixed rod 252 and the first end of the third fixed rod 253 are fixedly connected to the first end of one of the two armrest units 1.
  • the second end of the second fixed rod 252 and the second end of the third fixed rod 253 are connected to the first side of the other of the two armrest units 1.
  • the first sides of the two armrest units 1 are arranged oppositely.
  • the two fixed rods 252 are spaced apart from each other on the front side of the third fixed rod 253 .
  • the first fixing rod 251 is disposed on the second fixing rod 252 and the third fixing rod 253, and is vertically connected to the second fixing rod 252 and the third fixing rod 253.
  • the connection can be realized by screws.
  • connecting plates are vertically provided at both ends of the second fixed rod 252 and the third fixed rod 253.
  • Each connecting plate is provided with four connecting holes through which screws can be passed. , and is threadedly connected to the armrest unit 1 to achieve the fixation of the bottom bracket 25.
  • the connecting hole may be a strip hole to avoid the situation that the connecting hole does not correspond to the threaded hole on the handrail unit 1 .
  • the transmission link 22 is provided with a first connecting arm 254 extending downward
  • the second fixed rod 252 is provided with a second connecting arm 255 extending downward
  • the second connecting arm 255 is a hinge. arm.
  • the driving assembly 21 includes a housing 211 and a linear output end 212.
  • the housing 211 is rotationally connected to the lower end of the second connecting arm 255
  • the linear output end 212 is rotationally connected to the lower end of the first connecting arm 254.
  • the linear output end 212 of the driving assembly 21 extends out of the housing 211 to push the extension device 2 to extend
  • the front end of the linear output end 212 can rotate relative to the first connecting arm 254, and the rear end of the housing 211 can rotate relative to the second connecting arm 254.
  • the arm 255 can rotate to accommodate position changes of the drive assembly 21 .
  • the driving component 21 can be one of a cylinder, an oil cylinder, an electric cylinder, and a linear motor, as long as it has a linear output end 212 .
  • the seat frame back lifting mechanism 24 includes a seat frame mounting plate 241 fixedly connected to the seat frame part 41 .
  • the leg extension mechanism 23 includes a first leg link 231, a second leg link 232, a third leg link 233, a fourth leg link 234 and a fifth leg link 235; and includes a The first rotating shaft 51 , the second rotating shaft 52 , the third rotating shaft 53 , the fourth rotating shaft 54 , the fifth rotating shaft 55 , the sixth rotating shaft 56 , the seventh rotating shaft 57 , the eighth rotating shaft 58 and the ninth rotating shaft 59 are rotatably connected.
  • the first end of the first leg link 231 is rotationally connected to the seat frame back lifting mechanism 24 through the first rotating shaft 51 , and the second end of the first leg link 231 is fixedly connected to the transmission link 22 .
  • both ends of the transmission link 22 are respectively fixedly connected to the first leg links 231 of the two extension brackets, so as to be driven by the driving assembly 21 to drive the two extension brackets to extend or synchronize synchronously. Take back.
  • the first end of the second leg link 232 is rotatably connected to the first leg through the second rotating shaft 52.
  • One end of the connecting rod 231 is away from the seat frame back lifting mechanism 24 , and the second end of the second leg link 232 is rotationally connected to the third leg link 233 through the third rotating shaft 53 .
  • One end of the third leg link 233 away from the second leg link 232 is rotatably connected to the bottom of the footrest unit 3 through a fourth rotating shaft 54 .
  • the first end of the fourth leg link 234 is rotatably connected to the seat frame mounting plate 241 through the fifth rotating shaft 55
  • the second end of the fourth leg link 234 is rotatably connected to the fourth leg link 234 through the sixth rotating shaft 56 .
  • Five leg links 235 (shown in Figure 5). An end of the fifth leg link 235 away from the fourth leg link 234 is rotatably connected to the bottom of the footrest unit 3 through a seventh rotating shaft 57 .
  • the third leg link 233 and the fifth leg link 235 are rotatably connected to the bottom of the footrest unit 3 , and the rotary connection end of the third leg link 233 and the footrest unit 3 is located on the fifth leg link 235 and the front side of the rotational connection end of the footrest unit 3.
  • the fourth leg link 234 and the first leg link 231 are cross-articulated through the eighth rotating shaft 58
  • the fifth leg link 235 and the second leg link 232 are cross-articulated through the ninth rotating shaft 59
  • the sixth rotating shaft 56 , the eighth rotating shaft 58 and the fifth rotating shaft 55 are arranged sequentially on the fourth leg link 234 along the extending direction of the fourth leg link 234
  • the seventh rotating shaft 57 , the ninth rotating shaft 59 and the sixth rotating shaft 56 are arranged sequentially on the fifth leg link 235 along the extension direction of the fifth leg link 235 .
  • the second leg link 232, the third leg link 233, the fifth leg link 235 and the footrest unit 3 form a four-bar linkage.
  • the driving assembly 21 drives the first leg link 231 to move through the transmission link 22, and the first leg link 231 drives the fourth leg through the eighth rotating shaft 58.
  • the leg link 234 rotates around the center of the fifth rotating shaft 55, and the second leg link 232 is pushed to move through the second rotating shaft 52, thereby stretching the fourth leg link 234 and the fifth leg link 235. , and the first leg link 231 and the second leg link 232 are stretched apart.
  • the second leg link 232 drives the third leg link 233 to move through the third rotating shaft 53, so that the second leg link 232 and the third leg link 233 are extended, thereby realizing the storage of the footrest unit 3. Switching from state to footrest state.
  • the second leg link 232 includes a first rod 2321 and a second rod 2322 arranged at an obtuse angle
  • the second rotating shaft 52 is arranged on the first rod 2321
  • the third rotating shaft 53 is arranged on
  • the obtuse angle opening direction between the first rod 2321 and the second rod 2322 is directed away from the footrest unit 3. That is, the first rod 2321 is rotationally connected to the first leg link 231 through the second rotating shaft 52
  • the second rod 2322 is rotationally connected to the third leg link 233 through the third rotating shaft 53 .
  • a stopper 2411 is provided at the front end of the seat frame mounting plate 241 , and the fourth leg link 234 can rotate to abut the stopper 2411 to stop the footrest unit 3 in the footrest state. .
  • the fourth leg link 234 has been driven to contact the limiter 2411.
  • the linear output end 212 continues to extend, and the transmission link 22 will no longer drive the fourth leg link 234 to be installed relative to the seat frame.
  • the plate 241 rotates, that is, at this time, the leg extension mechanism 23 remains in the unfolded state, and the driving assembly 21 can drive the seat frame back lifting mechanism 24 to continue extending (the leisure position is switched to the lying position).
  • FIG. 5 there are two first fixed rods 251 spaced apart and arranged in parallel.
  • the two seat frame back lifting mechanisms 24 are connected to the two first fixed rods 251 in one-to-one correspondence.
  • the rear ends of the seat frame mounting plates 241 are rotationally connected. to the two first fixing rods 251 to realize the backward tilting of the seat frame back unit 4.
  • the seat frame back lifting mechanism 24 includes a first seat frame link 242 , a second seat frame link 243 , a tenth rotating shaft 510 , an eleventh rotating shaft 511 and a twelfth rotating shaft 512 .
  • the first rotating shaft 51 is disposed at the first end of the first seat frame link 242 and is disposed to be rotationally connected with the first leg link 231 .
  • the second end of the first seat frame connecting rod 242 is rotatably connected to the seat frame mounting plate 241 through the tenth rotating shaft 510 .
  • the first end of the second seat frame connecting rod 243 is rotatably connected to the first fixed rod 251 through the eleventh rotating shaft 511, and the second end of the second seat frame connecting rod 243 is rotatably connected to the first seat frame through the twelfth rotating shaft 512. Connecting rod 242.
  • the first leg link 231 drives the first seat frame link 242 around the center of the twelfth rotating axis 512 through the first rotating shaft 51 Rotate to lift the seat frame mounting plate 241 , that is, the seat frame back unit 4 tilts backward at a certain angle until the fourth leg link 234 contacts the stopper 2411 .
  • the first rotating shaft 51 , the twelfth rotating shaft 512 and the tenth rotating shaft 510 are arranged sequentially along the extending direction of the first seat frame connecting rod 242 .
  • the fifth rotating shaft 55 , the tenth rotating shaft 510 and the rotation connection points between the seat frame mounting plate 241 and the first fixed rod 251 are arranged in sequence from front to back.
  • the rotation connection point between the seat frame mounting plate 241 and the first fixed rod 251 is located on the rear side of the eleventh rotating shaft 511 . This arrangement allows the seat frame mounting plate 241, the first seat frame connecting rod 242, the second seat frame connecting rod 243 and the first fixed rod 251 to form a four-bar linkage mechanism.
  • the driving assembly 21 continues to drive.
  • the first leg link 231 drives the first seat frame link 242 to rotate around the tenth rotating axis 510
  • the four-bar linkage mechanism moves, and the second seat frame link 243 rotates around the eleventh rotating axis 511 to lift the seat frame.
  • the first seat frame link 242 includes a third rod 2422 and a fourth rod 2423 arranged at an obtuse angle.
  • the first rotating shaft 51 is arranged on the third rod 2422, and the tenth rotating shaft 510 is arranged on the fourth rod 2423.
  • the twelfth rotating shaft 512 is disposed at the intersection of the third rod 2422 and the fourth rod 2423 , and the opening direction of the angle between the third rod 2422 and the fourth rod 2423 is away from the first fixed rod 251 .
  • the third rod 2422 is rotatably connected to the first leg link 231 through the first rotating shaft 51
  • the fourth rod 2423 is rotatably connected to the seat frame mounting plate 241 through the tenth rotating shaft 510
  • the second seat frame link 243 is rotatably connected to the seat frame mounting plate 241.
  • the seat frame back lifting mechanism 24 also includes a third seat frame connecting rod 244 , a thirteenth rotating shaft 513 and a fourteenth rotating shaft 514 .
  • the first end of the third seat frame connecting rod 244 is rotatably connected to the rear end of the seat frame mounting plate 241 through the thirteenth rotating shaft 513
  • the second end of the third seat frame connecting rod 244 is rotatably connected to the fourth seat frame connecting rod 244 through the fourteenth rotating shaft 514 .
  • the fourteenth rotating shaft 514 is located on the rear side of the eleventh rotating shaft 511 .
  • the seat frame mounting plate 241 When the seat frame mounting plate 241 is lifted backward, the seat frame mounting plate 241 rotates relative to the third seat frame connecting rod 244, and the third seat frame connecting rod 244 rotates relative to the first fixed rod 251. By providing the third seat frame connecting rod 244, the seat frame mounting plate 241 can be slowly and steadily lifted.
  • the seat frame back lifting mechanism 24 also includes a fourth seat frame connecting rod 245 and a fifteenth rotating shaft 515 .
  • the first end of the fourth seat frame connecting rod 245 is rotatably connected to the front end of the first fixed rod 251 through the fifteenth rotating shaft 515. See Figure 11.
  • the second end of the fourth seat frame connecting rod 245 is provided with a strip along the extension direction.
  • the limit hole 2451 is provided with a limit column 2421 on the first seat frame link 242.
  • the limit column 2421 is slidably provided in the strip limit hole 2451 to limit the seat frame back unit 4 from moving backward within a preset angle range. tilt.
  • the limiting post 2421 is limited in the strip-shaped limiting hole 2451 and can slidably cooperate with the strip-shaped limiting hole 2451.
  • the limiting column 2421 gradually slides from one end of the strip-shaped limiting hole 2451 to the other end.
  • the limiting column 2421 contacts the inner wall of the strip-shaped limiting hole 2451, the first seat The frame link 242 no longer rotates, and the seat frame back lifting mechanism 24 no longer continues to extend, thus preventing the seat frame back unit 4 from tilting backward at an excessive angle and ensuring safety.
  • the range of the angle a between the first fixed rod 251 and the seat frame mounting plate 241 is: 0° ⁇ a ⁇ 5°.
  • the angle a between the first fixed rod 251 and the seat frame mounting plate 241 is in the range of: 8° ⁇ a ⁇ 15°.
  • the range of the angle a between the first fixed rod 251 and the seat frame mounting plate 241 is: 15° ⁇ a ⁇ 26°.
  • At least two strip-shaped mounting holes 2412 are provided on the seat frame mounting plate 241 along its extending direction.
  • the strip-shaped mounting holes 2412 are configured to realize the connection between the seat frame mounting plate 241 and the seat frame part 41 .
  • the above-mentioned at least two strip-shaped mounting holes 2412 are respectively provided at the front and rear ends of the seat frame mounting plate 241 , and fastening screws threadedly connected to the seat frame portion 41 are inserted through the strip-shaped mounting holes 2412 .

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

一种沙发，包括间隔设置的两个扶手单元、设置于两个扶手单元之间的伸展装置、搁脚板单元和座框靠背单元，座框靠背单元包括连为一体且呈夹角设置的座框部和靠背部，伸展装置连接于座框部的底部，并设置为通过驱使腿部伸展机构伸展，可使搁脚板单元由收纳状态翻转至搁脚状态，即搁脚板单元翻转至座框部的前方，用户可以将腿部搭放于搁脚板单元上，提高舒适度。

Description

沙发
本申请要求申请日为2022年8月11日、申请号为202222108917.6的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及家具技术领域，例如涉及一种沙发。
背景技术
随着社会生产力的提高和经济水平的发展，人们对家具的要求也越来越高，相关技术中，许多躺椅、沙发等家具都会安装机械伸展装置，在该机械伸展装置上安装靠背、放置有坐垫的座框和搁腿板。
机械伸展装置通常配设电动的驱动组件，利用驱动组件推动机械伸展装置伸展或收起，以便使沙发座椅具有不同姿态，满足人们对舒适性要求。相关技术中的沙发通常具有三种切换状态，可以实现坐姿、休闲姿(TV姿)和躺姿的平稳变换，以满足坐、休闲和躺卧多种需求。沙发侧面或扶手位置设置有控制按钮，通过按压控制按钮轻松实现三种状态的切换，上述沙发在设计时多采用人机工程学、平面杆系运动学等方法结合，使沙发的舒适性更高。
在一实施例中，机械伸展装置包括腿部伸展机构和座框靠背抬升机构，由坐姿切换至休闲姿时，驱动组件驱动腿部伸展机构打开，以使搁腿板翻转至前方，便于用户搭放腿部。由休闲姿切换至躺姿时，驱动组件继续驱动，使座框靠背抬升机构抬升座框和靠背，座框和靠背向后倾斜，以使用户能够躺卧(此时腿部伸展机构处于打开状态)。
然而，相关技术中具有机械伸展装置的沙发，座框和靠背为分体式结构，为实现抬升座框和靠背的功能，座框靠背抬升机构需要与座框和靠背连接，不仅结构复杂，使得沙发尺寸较大，而且还要保证座框和靠背同步向后倾斜，为设计增加了一定难度，同时也不利于后期维护检修和保养。
发明内容
本申请提供了一种沙发，能够实现坐姿、休闲姿和躺姿三种功能切换的同时，能够简化沙发结构，降低设计难度，利于后期维护检修以及保养等。
本申请一实施例提供了一种沙发，包括：间隔设置的两个扶手单元；伸展装置，连接于两个所述扶手单元之间，所述伸展装置包括间隔设置的两个伸展支架，每个所述伸展支架分别包括相连的腿部伸展机构；搁脚板单元，连接于所述腿部伸展机构的前端，并具有收纳状态和搁脚状态；及座框靠背单元，包括连为一体且呈夹角设置的座框部和靠背部，所述伸展装置连接于所述座框部的底部。
附图说明
图1是本申请一实施方式提供的沙发的外部示意图；
图2是本申请一实施方式提供的沙发的分解示意图；
图3是本申请一实施方式提供的伸展装置的第一轴测图(坐姿状态)；
图4是本申请一实施方式提供的伸展装置的分解示意图；
图5是本申请一实施方式提供的伸展装置的第二轴测图(休闲姿)；
图6是图5中A处的局部放大图；
图7是本申请一实施方式提供的伸展装置的第三轴测图(休闲姿)；
图8是本申请一实施方式提供的伸展支架在坐姿状态下的平面示意图；
图9是本申请一实施方式提供的伸展支架在休闲姿状态下的平面示意图；
图10是本申请一实施方式提供的伸展支架在躺姿状态下的平面示意图；
图11是图10中B处的局部放大图；
图12是本申请一实施方式提供的沙发在坐姿状态下的示意图；
图13是本申请一实施方式提供的沙发在休闲姿状态下的示意图；
图14是本申请一实施方式提供的沙发在躺姿状态下的示意图。
图中：
1、扶手单元；2、伸展装置；3、搁脚板单元；4、座框靠背单元；
21、驱动组件；22、传动连杆；23、腿部伸展机构；24、座框靠背抬升机
构；25、底部支架；
211、壳体；212、直线输出端；
231、第一腿部连杆；232、第二腿部连杆；233、第三腿部连杆；234、第
四腿部连杆；235、第五腿部连杆；2321、第一杆；2322、第二杆；
241、座框安装板；242、第一座框连杆；243、第二座框连杆；244、第三
座框连杆；245、第四座框连杆；
2411、限位件；2412、条形安装孔；
2421、限位柱；2422、第三杆；2423、第四杆；2451、条形限位孔；
251、第一固定杆；252、第二固定杆；253、第三固定杆；254、第一连臂；
255、第二连臂；
41、座框部；42、靠背部；
51、第一转轴；52、第二转轴；53、第三转轴；54、第四转轴；55、第五
转轴；56、第六转轴；57、第七转轴；58、第八转轴；59、第九转轴；510、第十转轴；511、第十一转轴；512、第十二转轴；513、第十三转轴；514、第十四转轴；515、第十五转轴。
具体实施方式
在本申请的描述中，除非另有明确的规定和限定，术语“相连”、“连接”、“固定”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；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或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本实施例的描述中，术语“上”、“下”、“左”、“右”等方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述和简化操作，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅仅用于在描述上加以区分，并没有特殊的含义。
如图1和图2所示，本实施例提供一种沙发，包括间隔设置的两个扶手单元1、设置于两个扶手单元1之间的伸展装置2、搁脚板单元3和座框靠背单元4。
参见图2，伸展装置2连接于两个扶手单元1之间。参见图3和图4，伸展装置2包括间隔设置的两个伸展支架，每个伸展支架包括相连的腿部伸展机构23。如图2所示，搁脚板单元3连接于两个腿部伸展机构23的前端，并具有收纳状态(参见图12)和搁脚状态(参见图13)。腿部伸展机构23的伸展和回收能够驱使搁脚板单元3在收纳状态和搁脚状态之间切换。座框靠背单元4包括连为一体且呈夹角设置的座框部41和靠背部42，伸展装置2连接于座框部41的底部。
本实施例中，通过驱使腿部伸展机构23伸展，可使搁脚板单元3由收纳状态翻转至搁脚状态，即搁脚板单元3翻转至座框部41的前方，用户可以将腿部搭放于搁脚板单元3上，提高舒适度。相比于相关技术中将座框部41和靠背部42设置为分体式的结构，本实施例提供的沙发，其座框部41和靠背部42为一体式，将伸展装置2与座框部41的底部连接即可，无需同时与座框部41和靠背部42连接，不增加额外的连接结构，在实现坐姿、休闲姿和躺姿三种功能切换的同时，简化了沙发结构，降低了设计难度，利于后期维护检修以及保养等。
在本实施例中，参见图3和图4，伸展装置2还包括驱动组件21和传动连杆22。传动连杆22连接于两个伸展支架之间，设置为带动两个伸展支架同时展开或收回。每个伸展支架还包括座框靠背抬升机构24，座框靠背抬升机构24连接于座框部41的底部。本实施例中，两个伸展支架的结构相同。
用户将沙发由坐姿切换至休闲姿时，驱动组件21通过传动连杆22驱动腿部伸展机构23伸展，以使搁脚板单元3由收纳状态翻转至搁脚状态(由图12的坐姿状态转换至图13的休闲状态)，即搁脚板单元3翻转至座框部41的前方，用户可以将腿部搭放于搁脚板单元3上，提高舒适度。
当用户将沙发由休闲姿切换至躺姿时，驱动组件21能够通过传动连杆22驱动座框靠背抬升机构24伸展，以使座框靠背单元4在预设角度范围内向后倾斜(由图13的休闲状态转换至图14的躺卧状态)，以使用户可以安全躺卧，此驱动过程中腿部伸展机构23始终保持展开状态。即，躺姿状态下，用户背部既可以向后躺倒，腿部也可以搭放于搁脚板单元3上。本实施例提供的沙发，将座框靠背抬升机构24与座框部41的底部连接即可，无需同时与座框部41和靠背部42连接，不增加额外的连接结构，在实现坐姿、休闲姿和躺姿三种功能切换的同时，简化了沙发结构，降低了设计难度，利于后期维护检修以及保养等。
参见图3、图5以及图7，伸展装置2还包括与扶手单元1固定连接的底部支架25。在一实施例中，底部支架25包括沿前后方向延伸的第一固定杆251，第一固 定杆251作为座框靠背抬升机构24的安装连杆，从而实现整个伸展装置2在两个扶手单元1之间的固定。底部支架25还包括第二固定杆252和第三固定杆253，第二固定杆252的第一端和第三固定杆253的第一端固定连接于两个扶手单元1中其中一个的第一侧面，第二固定杆252的第二端和第三固定杆253的第二端连接于两个扶手单元1中其中另一个的第一侧面，两个扶手单元1的第一侧面相对设置，第二固定杆252间隔设置于第三固定杆253的前侧。第一固定杆251设置于第二固定杆252和第三固定杆253上，并与第二固定杆252和第三固定杆253垂直连接，该连接可通过螺钉实现。
参见图3和图4，第二固定杆252和第三固定杆253二者的两端分别垂直设置有连接板，每个连接板上布设有四个连接孔，可使用螺钉穿过该连接孔，并螺纹连接于扶手单元1上，实现底部支架25的固定。在一实施例中，连接孔可为条形孔，避免出现连接孔与扶手单元1上螺纹孔不对应的情况。
参见图7和图8，传动连杆22上设置有向下延伸的第一连臂254，第二固定杆252上设置有向下延伸的第二连臂255，且第二连臂255为拐臂。驱动组件21包括壳体211和直线输出端212，壳体211转动连接于第二连臂255的下端，直线输出端212转动连接于第一连臂254的下端。在驱动组件21的直线输出端212伸出壳体211，以推动伸展装置2伸展的过程中，直线输出端212的前端相对第一连臂254能够转动，壳体211的后端相对第二连臂255能够转动，以适应驱动组件21的位置变换。
在一实施例中，驱动组件21可为气缸、油缸、电缸以及直线电机中的一种，只要具有直线输出端212即可。
参见图5、图7以及图9，座框靠背抬升机构24包括与座框部41固定连接的座框安装板241。腿部伸展机构23包括第一腿部连杆231、第二腿部连杆232、第三腿部连杆233、第四腿部连杆234和第五腿部连杆235；以及包括设置为转动连接的第一转轴51、第二转轴52、第三转轴53、第四转轴54、第五转轴55、第六转轴56、第七转轴57、第八转轴58以及第九转轴59。
参见图9，第一腿部连杆231的第一端与座框靠背抬升机构24通过第一转轴51转动连接，第一腿部连杆231的第二端与传动连杆22固定连接。在一实施例中，传动连杆22的两端分别固定连接于两个伸展支架的第一腿部连杆231上，以设置为在驱动组件21的驱使下带动两个伸展支架同步伸展或者同步收回。
参见图9，第二腿部连杆232的第一端通过第二转轴52转动连接于第一腿部 连杆231远离座框靠背抬升机构24的一端，第二腿部连杆232的第二端通过第三转轴53与第三腿部连杆233转动连接。第三腿部连杆233远离第二腿部连杆232的一端通过第四转轴54转动连接于搁脚板单元3的底部。
继续参见图9，第四腿部连杆234的第一端通过第五转轴55转动连接于座框安装板241，第四腿部连杆234的第二端通过第六转轴56转动连接于第五腿部连杆235(如图5中所示)。第五腿部连杆235远离第四腿部连杆234的一端通过第七转轴57转动连接于搁脚板单元3的底部。第三腿部连杆233和第五腿部连杆235转动连接于搁脚板单元3的底部，且第三腿部连杆233与搁脚板单元3的转动连接端位于第五腿部连杆235与搁脚板单元3的转动连接端的前侧。
参见图9，第四腿部连杆234与第一腿部连杆231通过第八转轴58交叉铰接，第五腿部连杆235与第二腿部连杆232通过第九转轴59交叉铰接。第六转轴56、第八转轴58以及第五转轴55在第四腿部连杆234上沿第四腿部连杆234的延伸方向依次设置。第七转轴57、第九转轴59以及第六转轴56在第五腿部连杆235上沿第五腿部连杆235延伸方向依次设置。第二腿部连杆232、第三腿部连杆233、第五腿部连杆235以及搁脚板单元3构成一个四连杆机构。
参见图8和图9，沙发由坐姿切换至休闲姿时，驱动组件21通过传动连杆22带动第一腿部连杆231移动，第一腿部连杆231通过第八转轴58带动第四腿部连杆234绕第五转轴55的中心转动，以及通过第二转轴52推动第二腿部连杆232移动，从而使第四腿部连杆234和第五腿部连杆235之间伸展开，以及使第一腿部连杆231和第二腿部连杆232之间伸展开。第二腿部连杆232通过第三转轴53带动第三腿部连杆233移动，以使第二腿部连杆232和第三腿部连杆233伸展开，从而实现搁脚板单元3由收纳状态到搁脚状态的切换。
在一实施例中，参见图9，第二腿部连杆232包括呈钝角设置的第一杆2321和第二杆2322，第二转轴52设置于第一杆2321上，第三转轴53设置于第二杆2322上，第一杆2321和第二杆2322之间的钝角开口方向背向搁脚板单元3。即，第一杆2321通过第二转轴52与第一腿部连杆231转动连接，第二杆2322通过第三转轴53与第三腿部连杆233转动连接。通过设置呈钝角的第一杆2321和第二杆2322，能够使第二腿部连杆232上更多的分力用于推动第三腿部连杆233，设计更为合理，且能够节省连杆的布置空间。
参加图5和图6，座框安装板241的前端设置有限位件2411，第四腿部连杆234能够转动至与限位件2411抵接，以使搁脚板单元3止动于搁脚状态。如图6所示， 此时第四腿部连杆234已经传动至与限位件2411抵接，此时直线输出端212继续伸出，传动连杆22也不会再带动第四腿部连杆234相对座框安装板241转动，即，此时腿部伸展机构23保持展开状态，驱动组件21能够驱动座框靠背抬升机构24继续伸展(休闲姿切换为躺姿)。
参见图5，第一固定杆251间隔且平行设置有两个，两个座框靠背抬升机构24一一对应地连接于两个第一固定杆251上，座框安装板241的后端转动连接于两个第一固定杆251，以实现座框靠背单元4的向后倾斜。
在一实施例中，参见图10，座框靠背抬升机构24包括第一座框连杆242、第二座框连杆243、第十转轴510、第十一转轴511及第十二转轴512。
第一转轴51设置于第一座框连杆242的第一端，设置为与第一腿部连杆231转动连接。第一座框连杆242的第二端通过第十转轴510转动连接于座框安装板241上。第二座框连杆243的第一端通过第十一转轴511转动连接于第一固定杆251，第二座框连杆243的第二端通过第十二转轴512转动连接于第一座框连杆242。参见图8、图9、图12以及图13，沙发由坐姿切换至休闲姿时，第一腿部连杆231通过第一转轴51带动第一座框连杆242绕第十二转轴512的中心转动，以使座框安装板241抬升，即，座框靠背单元4向后倾斜一定角度，直至第四腿部连杆234与限位件2411抵接。
在一实施例中，参见图9和图10，第一转轴51、第十二转轴512以及第十转轴510沿第一座框连杆242的延伸方向依次设置。第五转轴55、第十转轴510以及座框安装板241与第一固定杆251的转动连接点由前至后依次设置。座框安装板241与第一固定杆251的转动连接点位于第十一转轴511的后侧。这种布置使得座框安装板241、第一座框连杆242、第二座框连杆243以及第一固定杆251构成四连杆机构，当沙发切换至休闲姿后，驱动组件21继续驱动时，第一腿部连杆231带动第一座框连杆242绕第十转轴510转动，该四连杆机构运动，第二座框连杆243绕第十一转轴511转动，以抬升座框安装板241。
在一实施例中，第一座框连杆242包括呈钝角设置的第三杆2422和第四杆2423。第一转轴51设置于第三杆2422上，第十转轴510设置于第四杆2423上。第十二转轴512设置于第三杆2422和第四杆2423的交接处，第三杆2422和第四杆2423之间的夹角的开口方向背向第一固定杆251。即，第三杆2422与第一腿部连杆231通过第一转轴51转动连接，第四杆2423通过第十转轴510与座框安装板241转动连接，第二座框连杆243转动连接于第三杆2422和第四杆2423的相交处。通 过设置呈钝角的第三杆2422和第四杆2423，能够使第一座框连杆242上更多的分力设置为驱动第二座框连杆243相对第一固定杆251转动。
参见图9和图10，座框靠背抬升机构24还包括第三座框连杆244、第十三转轴513以及第十四转轴514。第三座框连杆244的第一端通过第十三转轴513转动连接于座框安装板241的后端，第三座框连杆244的第二端通过第十四转轴514转动连接于第一固定杆251的后端。即，第十三转轴513位于第十转轴510的后侧，第十四转轴514位于第十一转轴511的后侧。座框安装板241向后抬升时，座框安装板241相对第三座框连杆244转动，第三座框连杆244相对第一固定杆251转动。通过设置第三座框连杆244，能够实现座框安装板241的缓慢平稳抬升。
继续参阅图10，座框靠背抬升机构24还包括第四座框连杆245和第十五转轴515。第四座框连杆245的第一端通过第十五转轴515转动连接于第一固定杆251的前端，参见图11，第四座框连杆245的第二端沿延伸方向设置有条形限位孔2451，第一座框连杆242上设置有限位柱2421，限位柱2421可滑动地设置于条形限位孔2451内，以限制座框靠背单元4在预设角度范围内向后倾斜。限位柱2421受限于条形限位孔2451内，并与条形限位孔2451可滑动配合。在沙发由休闲姿切换至躺姿时，限位柱2421逐渐由条形限位孔2451的一端滑动至另一端，待限位柱2421与条形限位孔2451内壁抵接时，第一座框连杆242不再转动，座框靠背抬升机构24不再继续伸展，避免座框靠背单元4向后倾斜过大角度，保证安全性。
本实施例沙发的坐姿中，参阅图8，第一固定杆251与座框安装板241之间的夹角a的范围为：0°＜a＜5°。
本实施例沙发的休闲姿中，参阅图9，第一固定杆251与座框安装板241之间的夹角a的范围为：8°＜a＜15°。
本实施例沙发的躺姿中，参阅图10，第一固定杆251与座框安装板241之间的夹角a的范围为：15°≤a≤26°。
在一实施例中，参见图8，座框安装板241上沿其延伸方向设置有至少两个条形安装孔2412，条形安装孔2412设置为实现座框安装板241与座框部41的安装。上述至少两个条形安装孔2412分设于座框安装板241的前后两端，条形安装孔2412内穿设有与座框部41螺纹连接的紧固螺钉。通过设置条形安装孔2412，能够容许安装误差，避免出现条形安装孔2412与座框部41上的螺纹孔不对正的情况发生。

Claims (10)

  1. 一种沙发，包括：
    间隔设置的两个扶手单元(1)；
    伸展装置(2)，连接于两个所述扶手单元(1)之间，所述伸展装置(2)包括间隔设置的两个伸展支架，每个所述伸展支架分别包括腿部伸展机构(23)；
    搁脚板单元(3)，连接于所述腿部伸展机构(23)的前端，并具有收纳状态和搁脚状态；及
    座框靠背单元(4)，包括连为一体且呈夹角设置的座框部(41)和靠背部(42)，所述伸展装置(2)连接于所述座框部(41)的底部。
  2. 根据权利要求1所述的沙发，其中，所述伸展装置(2)还包括驱动组件(21)和传动连杆(22)，所述传动连杆(22)连接于两个所述伸展支架之间；
    所述驱动组件(21)设置为通过所述传动连杆(22)驱动所述伸展支架伸展，以使所述搁脚板单元(3)由所述收纳状态翻转至所述搁脚状态；
    所述驱动组件(21)设置为通过所述传动连杆(22)驱动所述伸展支架伸展，以使所述座框靠背单元(4)在预设角度范围内向后倾斜。
  3. 根据权利要求2所述的沙发，其中，所述伸展支架还包括座框靠背抬升机构(24)，所述座框靠背抬升机构(24)连接于所述座框部(41)的底部；
    所述驱动组件(21)设置为通过所述传动连杆(22)驱动所述座框靠背抬升机构(24)伸展，以使所述座框靠背单元(4)在预设角度范围内向后倾斜。
  4. 根据权利要求3所述的沙发，其中，所述座框靠背抬升机构(24)包括与所述座框部(41)固定连接的座框安装板(241)，所述腿部伸展机构(23)包括第一腿部连杆(231)、第二腿部连杆(232)、第三腿部连杆(233)、第四腿部连杆(234)以及第五腿部连杆(235)；
    所述第一腿部连杆(231)的第一端与所述座框靠背抬升机构(24)通过第一转轴(51)转动连接，所述第一腿部连杆(231)的第二端与所述传动连杆(22)固定连接，所述第二腿部连杆(232)的第一端通过第二转轴(52)转动连接于所述第一腿部连杆(231)远离所述座框靠背抬升机构(24)的一端，所述第二腿部连杆(232)的第二端通过第三转轴(53)与所述第三腿部连杆(233)转动连接，所述第三腿部连杆(233)远离所述第二腿部连杆(232)的一端通过第四转轴(54)转动连接于所述搁脚板单元(3)的底部；
    所述第四腿部连杆(234)的第一端通过第五转轴(55)转动连接于所述座框安装板(241)，所述第四腿部连杆(234)的第二端通过第六转轴(56)转动 连接于所述第五腿部连杆(235)，所述第五腿部连杆(235)远离所述第四腿部连杆(234)的一端通过第七转轴(57)转动连接于所述搁脚板单元(3)的底部；
    所述第四腿部连杆(234)与所述第一腿部连杆(231)通过第八转轴(58)交叉铰接，所述第五腿部连杆(235)与所述第二腿部连杆(232)通过第九转轴(59)交叉铰接。
  5. 根据权利要求4所述的沙发，其中，所述第二腿部连杆(232)包括呈钝角设置的第一杆(2321)和第二杆(2322)，所述第二转轴(52)设置于所述第一杆(2321)上，所述第三转轴(53)设置于所述第二杆(2322)上，所述第一杆(2321)和所述第二杆(2322)之间的钝角开口方向背向所述搁脚板单元(3)；
    所述座框安装板(241)上设置有限位件(2411)，所述第四腿部连杆(234)设置为转动至与所述限位件(2411)抵接时，所述搁脚板单元(3)止动于所述搁脚状态。
  6. 根据权利要求4所述的沙发，其中，所述伸展装置(2)还包括与所述扶手单元(1)固定连接的底部支架(25)，所述底部支架(25)包括沿前后方向延伸的第一固定杆(251)，所述座框安装板(241)的后端转动连接于所述第一固定杆(251)，所述座框靠背抬升机构(24)包括第一座框连杆(242)、第二座框连杆(243)；
    所述第一转轴(51)设置于所述第一座框连杆(242)的第一端，所述第一座框连杆(242)的第二端通过第十转轴(510)转动连接于所述座框安装板(241)上，所述第二座框连杆(243)的第一端通过第十一转轴(511)转动连接于所述第一固定杆(251)，所述第二座框连杆(243)的第二端通过第十二转轴(512)转动连接于所述第一座框连杆(242)；
    所述第一转轴(51)、所述第十二转轴(512)以及所述第十转轴(510)沿所述第一座框连杆(242)的延伸方向依次设置；
    所述第五转轴(55)、所述第十转轴(510)以及所述座框安装板(241)与所述第一固定杆(251)的转动连接点由前至后依次设置；
    所述座框安装板(241)与所述第一固定杆(251)的转动连接点位于所述第十一转轴(511)的后侧。
  7. 根据权利要求6所述的沙发，其中，所述座框靠背抬升机构(24)还包括 第三座框连杆(244)，所述第三座框连杆(244)的第一端通过第十三转轴(513)转动连接于所述座框安装板(241)的后端，所述第三座框连杆(244)的第二端通过第十四转轴(514)转动连接于所述第一固定杆(251)的后端。
  8. 根据权利要求7所述的沙发，其中，所述座框靠背抬升机构(24)还包括第四座框连杆(245)，所述第四座框连杆(245)的第一端通过第十五转轴(515)转动连接于所述第一固定杆(251)的前端，所述第四座框连杆(245)的第二端沿延伸方向设置有条形限位孔(2451)，所述第一座框连杆(242)上设置有限位柱(2421)，所述限位柱(2421)可滑动地设置于所述条形限位孔(2451)内，以限制所述座框靠背单元(4)在预设角度范围内向后倾斜。
  9. 根据权利要求6所述的沙发，其中，所述第一座框连杆(242)包括呈钝角设置的第三杆(2422)和第四杆(2423)，所述第一转轴(51)设置于所述第三杆(2422)上，所述第十转轴(510)设置于所述第四杆(2423)上，所述第十二转轴(512)设置于所述第三杆(2422)和所述第四杆(2423)的交接处，所述第三杆(2422)和所述第四杆(2423)之间的钝角开口背向所述第一固定杆(251)；
    所述底部支架(25)还包括第二固定杆(252)和第三固定杆(253)，所述第二固定杆(252)的第一端和所述第三固定杆(253)的第一端分别固定连接于两个所述扶手单元(1)中的其中一个的第一侧面，所述第二固定杆(252)的第二端和所述第三固定杆(253)的第二端分别固定连接于所述两个扶手单元(1)中的另一个的第一侧面，所述两个扶手单元(1)的第一侧面相对设置，所述第二固定杆(252)间隔设置于所述第三固定杆(253)的前侧，所述第一固定杆(251)设置于所述第二固定杆(252)和所述第三固定杆(253)上，所述传动连杆(22)上设置有向下延伸的第一连臂(254)，所述第二固定杆(252)上设置有向下延伸的第二连臂(255)，所述驱动组件(21)包括壳体(211)和直线输出端(212)，所述壳体(211)转动连接于所述第二连臂(255)的下端，所述直线输出端(212)转动连接于所述第一连臂(254)的下端。
  10. 根据权利要求4-9任一项所述的沙发，其中，所述座框安装板(241)上沿延伸方向设置有至少两个条形安装孔(2412)，至少两个所述条形安装孔(2412)分别设于所述座框安装板(241)的前后两端，所述条形安装孔(2412)内穿设有与所述座框部(41)螺纹连接的紧固螺钉。
PCT/CN2023/099578 2022-08-11 2023-06-12 沙发 WO2024032135A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202222108917.6U CN217885539U (zh) 2022-08-11 2022-08-11 一种沙发
CN202222108917.6 2022-08-11

Publications (1)

Publication Number Publication Date
WO2024032135A1 true WO2024032135A1 (zh) 2024-02-15

Family

ID=84143457

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/099578 WO2024032135A1 (zh) 2022-08-11 2023-06-12 沙发

Country Status (2)

Country Link
CN (1) CN217885539U (zh)
WO (1) WO2024032135A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN217885539U (zh) * 2022-08-11 2022-11-25 德沃康科技集团有限公司 一种沙发

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08266370A (ja) * 1995-03-31 1996-10-15 Tachi S Co Ltd スイングシートの連動式フットレスト
JP2008142103A (ja) * 2006-12-06 2008-06-26 Isozaki Kenko Kikaku:Kk マッサージ機
WO2020225596A1 (en) * 2019-05-09 2020-11-12 Altaflex S.R.L. Footrest device for sofa beds
CN212489233U (zh) * 2020-08-06 2021-02-09 锐迈机械科技（吴江）有限公司 一种座椅伸展支架
CN214386860U (zh) * 2021-02-05 2021-10-15 开封森淼家具有限公司 一种自动收放搁脚板的智能休闲沙发
CN216797049U (zh) * 2021-08-18 2022-06-24 锐迈机械科技（吴江）有限公司 一种用于高支脚座椅的联动装置及座椅单元
CN216907379U (zh) * 2021-07-09 2022-07-08 德沃康科技集团有限公司 座椅伸展支架、座椅伸展装置及座椅
CN217117973U (zh) * 2022-05-09 2022-08-05 德沃康科技集团有限公司 一种零靠墙沙发
CN217885539U (zh) * 2022-08-11 2022-11-25 德沃康科技集团有限公司 一种沙发

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08266370A (ja) * 1995-03-31 1996-10-15 Tachi S Co Ltd スイングシートの連動式フットレスト
JP2008142103A (ja) * 2006-12-06 2008-06-26 Isozaki Kenko Kikaku:Kk マッサージ機
WO2020225596A1 (en) * 2019-05-09 2020-11-12 Altaflex S.R.L. Footrest device for sofa beds
CN212489233U (zh) * 2020-08-06 2021-02-09 锐迈机械科技（吴江）有限公司 一种座椅伸展支架
CN214386860U (zh) * 2021-02-05 2021-10-15 开封森淼家具有限公司 一种自动收放搁脚板的智能休闲沙发
CN216907379U (zh) * 2021-07-09 2022-07-08 德沃康科技集团有限公司 座椅伸展支架、座椅伸展装置及座椅
CN216797049U (zh) * 2021-08-18 2022-06-24 锐迈机械科技（吴江）有限公司 一种用于高支脚座椅的联动装置及座椅单元
CN217117973U (zh) * 2022-05-09 2022-08-05 德沃康科技集团有限公司 一种零靠墙沙发
CN217885539U (zh) * 2022-08-11 2022-11-25 德沃康科技集团有限公司 一种沙发

Also Published As

Publication number Publication date
CN217885539U (zh) 2022-11-25

Similar Documents

Publication Publication Date Title
CN111885948B (zh) 具有低姿态零重力设计且增加倾斜靠背的全联动座椅装置
US10595636B2 (en) Seat structure and chair
WO2024032135A1 (zh) 沙发
EP4173521A1 (en) Mechanical stretching device for movable seat unit and seat unit
TW200522896A (en) Powered furniture
EP3282898B1 (en) Dual motion sloped floor recline mechanism for a theater
KR101648667B1 (ko) 전동휠체어
EP0477762A2 (en) Reclining chair
CN109288290A (zh) 一种双电机驱动助站躺椅用铁架及其工作方法
CN113317651A (zh) 座椅伸展支架、座椅伸展装置及座椅
CN214631129U (zh) 多功能休闲椅框架结构
WO2021213079A1 (zh) 办公休闲椅
WO2022257212A1 (zh) 座面倾角调节结构以及休闲椅
WO2024031863A1 (zh) 一种座位单元用调节装置及座位单元
CN218127658U (zh) 一种防夹手的搁脚折叠机构
WO2022152309A1 (zh) 沙发伸展装置
CN216907379U (zh) 座椅伸展支架、座椅伸展装置及座椅
CN214341265U (zh) 一种沙发电动伸展装置
WO2023056686A1 (zh) 沙发座椅伸展装置
CN220141178U (zh) 一种可随意调节的平躺椅
CN218186003U (zh) 双电机驱动滑轨式伸展装置
WO2023097881A1 (zh) 座椅框架
CN215502079U (zh) 座面倾角调节结构以及休闲椅
US20240023713A1 (en) Reclining chair with tilting action to provide heart-rest position
CN219289059U (zh) 用于可活动的座椅单元的机械伸展装置及座椅单元

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23851363

Country of ref document: EP

Kind code of ref document: A1