WO2023092391A1 - Chair leaning structure and chair - Google Patents
Chair leaning structure and chair Download PDFInfo
- Publication number
- WO2023092391A1 WO2023092391A1 PCT/CN2021/133156 CN2021133156W WO2023092391A1 WO 2023092391 A1 WO2023092391 A1 WO 2023092391A1 CN 2021133156 W CN2021133156 W CN 2021133156W WO 2023092391 A1 WO2023092391 A1 WO 2023092391A1
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- WO
- WIPO (PCT)
- Prior art keywords
- guide
- chair
- groove
- connecting rib
- headrest
- Prior art date
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Classifications
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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
- A47C7/36—Support for the head or the back
- A47C7/38—Support for the head or the back for the head
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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
- A47C7/36—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
Definitions
- the first guide connection seat 6 has a first guide groove 60 extending up and down, and the base support box 41 is fixed with a
- the first guide block 61 that moves up and down is specifically that the rear side plate of the base support box 41 is in the position of the front side in the base support box 41 and the first guide block 61 is installed.
- the first guide The groove bottom of the groove 60 is also provided with an installation groove 62 extending up and down for the fixed installation of the first guide block 61 and the basic support box 41.
- the first guide block 61 is placed in the first guide groove 60, and locking elements such as bolts
- the first guide block 61 can be installed and fixed in the base support box 41 through the installation groove 62 .
- the upper and lower parts of the left guide block 72 and the right guide block 73 are in the shape of an arc arched backwards to optimize the structure.
- the left slot 720 and the right slot 730 also have arc-shaped parts correspondingly. Such a structural design It also reduces the amount of rearward deflection of the headrest.
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
A chair leaning structure and a chair. The chair leaning structure comprises a chair seat (1), a chair backrest (2), and a headrest (3); a basic supporting box (41) extending downwards is fixed to the back of the chair backrest (2); the lower end of the basic supporting box (41) is integrally connected to a bottom connecting arm (42) that extends forwards; the bottom connecting arm (42) and the chair seat (1) are hingedly connected and form a first hinge portion (a); the headrest (3) is connected to a headrest supporting assembly that extends downwards and can pass through the basic supporting box (41); the lower portion of the headrest supporting assembly is provided with a basic connecting rib (51) capable of moving up and down in the basic supporting box (41) relative to the basic supporting box (41); the bottom end of the basic connecting rib (51) is integrally connected to a bottom connecting rib (52) that extends forwards; the front end of the bottom connecting rib (52) and the chair seat (1) are hingedly connected and form a second hinge portion (b); the first hinge portion (a) is located in front of the second hinge portion (b); and the front-back length of the bottom connecting arm (42) is larger than the front-back length of the bottom connecting rib (52), so that the position of the headrest (3) can be kept stable in the process that the chair backrest (2) deflects backwards.
Description
本发明涉及家具用品的技术领域，具体为一种椅子倚靠结构及椅子。The invention relates to the technical field of furniture articles, in particular to a chair leaning structure and a chair.
日常生活中，椅子是每个家庭每个企业必不可少的家具用品，只要有人的地方都会配备椅子，现有的椅子结构种类繁多，功能也是琳琅满目，而且人们对于椅子的各种要求也越来越高。In daily life, chairs are an indispensable furniture item for every family and every business. As long as there are people, there will be chairs. The existing chairs have various structures and functions, and people have more and more requirements for chairs. higher.
如申请号为201820279480.3的中国专利公开的一种椅子用可升降头枕，包括椅座、支撑杆、支撑腿、连接环、椅轮、扶手杆、扶手、椅背及头枕，椅座下表面中心位置与支撑杆顶端相连，支撑杆底部与连接环顶端中心位置相连，支撑腿有若干个，连接环外侧表面均匀设置有支撑腿，支撑腿底部设置有椅轮，椅座两侧固定安装有扶手杆，扶手杆顶端设置有扶手，椅座上表面一侧与椅背底部相连，椅背顶端与头枕底部相连。For example, a Chinese patent with application number 201820279480.3 discloses a liftable headrest for a chair, including a seat, a support rod, a support leg, a connecting ring, a chair wheel, an armrest rod, an armrest, a chair back and a headrest, and the lower surface of the seat The center position is connected to the top of the support rod, the bottom of the support rod is connected to the center of the top of the connecting ring, there are several supporting legs, the outer surface of the connecting ring is evenly provided with supporting legs, the bottom of the supporting legs is provided with chair wheels, and the chair seat is fixedly installed on both sides. An armrest bar is provided with an armrest at the top of the armrest bar, one side of the upper surface of the seat seat is connected with the bottom of the chair back, and the top of the seat back is connected with the bottom of the headrest.
又如申请号为202023101725.X的中国专利公开的一种便于调节头枕高度的椅子，包括椅背以及头枕，其中，还包括连接件，头枕包括第一部件以及第二部件，第一部件与第二部件呈联动设置，第一部件上设有滑槽，第二部件上设有若干个呈间隔设置的挡位槽，第一部件与第二部件之间设有在滑槽上滑动的滑块，连接件一端与椅背连接，另一端上设有与滑块连接的连接柱以及与挡位槽适配的挡位柱。Another example is a chair whose application number is 202023101725.X, which is convenient for adjusting the height of the headrest. The part and the second part are arranged in linkage, the first part is provided with a chute, the second part is provided with several gear slots arranged at intervals, and there is a slide between the first part and the second part on the chute. One end of the connecting piece is connected to the chair back, and the other end is provided with a connecting column connected with the slider and a gear column adapted to the gear groove.
现有的这些椅子结构存在一个比较大的问题，就是当椅背向后倚靠转动后，头枕的位置也会随之向后偏转，使得头的视角会向后上方偏转，使得人的视线朝上而不能观察前方，特别在办公或者开会需要一直注视前方的情况下，当腰背带动椅背向后靠了以后，头部需要主动向前发力才能保持原来的视角，对于颈椎来说，会造成不小的损伤。There is a relatively big problem in these existing chair structures, that is, when the back of the chair leans back and rotates, the position of the headrest will also deflect backward accordingly, so that the viewing angle of the head will deflect backward and upward, making people's line of sight toward You can't look ahead, especially when you need to keep looking ahead at work or in a meeting. When the back drives the chair back and leans back, the head needs to actively push forward to maintain the original angle of view. For the cervical spine, Will cause little damage.
本发明的目的是提供一种能使得头枕的位置在椅背向后偏转的过程中保持稳定的椅子倚靠结构及椅子。The object of the present invention is to provide a chair leaning structure and a chair which can keep the position of the headrest stable during the backward deflection of the chair back.
本发明的上述技术目的是通过以下技术方案得以实现的：一种椅子倚靠结构，包括椅座、椅背和头枕，所述椅背的背部固定有向下方伸展的基础支撑盒，所述基础支撑盒的下端一体连接有向前伸展的底连接臂，所述底连接臂与椅座铰接连接并形成第一铰接部位，所述头枕上连接有向下伸展并能穿设在所述基础支撑盒上的头枕支撑组件，所述头枕支撑组件靠下的部分具有能在所述基础支撑盒中相对所述基础支撑盒上下移动的基础连接筋，所述基础连接筋的底端一体连接有向前伸展的底连接筋，所述底连接筋的前端与椅座铰接连接并形成第二铰接部位，所述第一铰接部位位于所述第二铰接部位的前方，所述底连接臂的前后长度大于所述底连接筋的前后长度。The above technical purpose of the present invention is achieved through the following technical solutions: a chair leaning structure, comprising a seat, a chair back and a headrest, the back of the chair back is fixed with a base support box extending downwards, the base The lower end of the support box is integrally connected with a bottom connecting arm that extends forward, and the bottom connecting arm is hingedly connected with the seat to form a first hinged position. The headrest is connected with a The headrest supporting assembly on the box, the lower part of the headrest supporting assembly has a basic connecting rib that can move up and down relative to the basic supporting box in the basic supporting box, and the bottom end of the basic connecting rib is integrally connected There is a bottom connecting rib extending forward, the front end of the bottom connecting rib is hingedly connected with the seat to form a second hinged position, the first hinged position is located in front of the second hinged position, and the bottom connecting arm The front-to-back length is greater than the front-to-back length of the bottom connecting rib.
作为对本发明的优选，所述基础支撑盒内具有供基础连接筋上下相对穿行的基础支撑腔，所述基础支撑盒的前侧板上开设有供底连接筋前后穿过并上下相对移动的前侧基础导向槽，所述基础支撑盒和所述底连接臂的一体连接部位处开设有与所述前侧基础导向槽的底部连通的过渡槽，初始状态，所述基础连接筋与底连接筋的一体连接部位处于过渡槽中。As a preference for the present invention, the base support box has a base support cavity for the base connecting ribs to pass through relatively up and down, and the front side plate of the base support box is provided with a front cavity for the bottom connecting ribs to pass through and relatively move up and down. The side foundation guide groove, the integral connection part of the foundation support box and the bottom connecting arm is provided with a transition groove communicating with the bottom of the front side foundation guide groove. In the initial state, the foundation connection rib and the bottom connection rib The one-piece connection part is in the transition groove.
作为对本发明的优选，所述基础连接筋的上端还铰接有向上伸展的第一导向连接座，所述第一导向连接座的上端部位铰接向上伸展的中间连接筋，所述基础支撑盒中形成有底部与所述基础支撑腔连通并向上伸展的供第一导向连接座和所述中间连接筋上下相对穿行的基础支撑槽，所述中间连接筋上端伸出所述基础支撑槽，所述中间连接筋上端铰接有向上伸展的第二导向连接座，所述第二导向连接座靠上的部分与所述头枕连接住。As a preference for the present invention, the upper end of the basic connecting rib is also hinged with a first guide connecting seat extending upward, and the upper end of the first guiding connecting seat is hinged with an intermediate connecting rib extending upward. There is a basic support groove whose bottom is connected with the basic support cavity and extends upwards for the first guide connecting seat and the intermediate connecting rib to pass through relatively up and down. The upper end of the intermediate connecting rib protrudes from the basic supporting groove, and the middle The upper end of the connecting rib is hinged with a second guiding connecting seat extending upwards, and the upper part of the second guiding connecting seat is connected with the headrest.
作为对本发明的优选，所述第一导向连接座中具有上下伸展的第一导向槽，所述基础支撑盒上固定有处在所述第一导向槽中并能相对所述第一导向槽上下移动的第一导向块，所述第一导向槽的槽底还开设有上下伸展供第一导向块与所述基础支撑盒固定安装用的安装槽，所述安装槽的左右长度小于所述第一导向块的左右长度。As a preference for the present invention, the first guide connection seat has a first guide groove extending up and down, and the base support box is fixed with a For the moving first guide block, the groove bottom of the first guide groove is also provided with an installation groove extending up and down for the fixed installation of the first guide block and the basic support box. The left and right length of the installation groove is less than that of the first guide block The left and right lengths of a guide block.
作为对本发明的优选，所述第二导向连接座包括用于跟中间连接筋上端铰接的并左右延伸的底导向板以及所述底导向板左右两端分别一体连接有并向上伸展的左导向块和右导向块，所述左导向块和右导向块上端部分与头枕连接住。As a preference for the present invention, the second guide connection seat includes a bottom guide plate that is hinged to the upper end of the middle connecting rib and extends left and right, and a left guide block that is integrally connected to the left and right ends of the bottom guide plate and extends upward. and the right guide block, the upper end parts of the left guide block and the right guide block are connected with the headrest.
作为对本发明的优选，所述椅背的背部还固定有供所述第二导向连接座上下相对穿行的上导向盒体。As a preference of the present invention, the back of the chair back is also fixed with an upper guide box for the second guide connecting seat to pass up and down relative to each other.
作为对本发明的优选，所述上导向盒体中形成有左右分别供左导向块和右导向块上下相对移动并向上穿出所述上导向盒体的左侧槽和右侧槽以及与左侧槽和右侧槽底部均连通的供所底导向板上下移动的中间主体槽。As a preference for the present invention, the upper guide box body is formed with left and right grooves for the left guide block and the right guide block to move up and down relative to each other and pass through the upper guide box body. The bottom of the slot and the bottom of the right slot are all connected to the middle main body slot for the bottom guide plate to move up and down.
作为对本发明的优选，所述底导向板上一体连接有向前穿出所述上导向盒体并用于跟所述中间连接筋上端铰接的上铰接板，所述上导向盒体上开设有供所述上铰接板向前穿出并上下相对移动的上通行槽。As a preference for the present invention, the bottom guide plate is integrally connected with an upper hinge plate that passes through the upper guide box body forward and is used to hinge with the upper end of the middle connecting rib, and the upper guide box body is provided with a The upper passage groove through which the upper hinge plate passes forward and relatively moves up and down.
作为对本发明的优选，所述基础连接筋与底连接筋的一体连接部位并呈弧形连接状，所述基础支撑盒与底连接臂板的一体连接部位也呈弧形连接状。As a preference of the present invention, the integral connection between the basic connecting rib and the bottom connecting rib is arc-shaped, and the integral connection between the base support box and the bottom connecting arm plate is also arc-shaped.
一种椅子，包括前述任一的一种椅子倚靠结构。A chair includes any one of the aforementioned chair leaning structures.
本发明的有益效果：当人体的腰背带动椅背向后偏转的过程中，能始终保证头枕的前后上下位置的移动量大幅减少，使得头枕的位置稳定，能有效保证头部的位置稳定，可以更好地是人的头部的视线保持稳定，也能有效保护颈椎，对于开会或者办公的人群来说，非常有益，而且使用过程中无需调节，非常方便实用。The beneficial effects of the present invention: when the back of the human body drives the back of the chair to deflect backward, it can always ensure that the movement of the front, rear, up and down positions of the headrest is greatly reduced, so that the position of the headrest is stable and the position of the head can be effectively guaranteed Stability can better keep the line of sight of the human head stable, and can also effectively protect the cervical spine. It is very beneficial for people in meetings or offices, and it does not need to be adjusted during use, which is very convenient and practical.
图1为实施例中椅子倚靠结构的立体结构示意图；Fig. 1 is the three-dimensional structure schematic diagram of the chair leaning structure in the embodiment;
图2为图1中结构前侧视角的部分立体结构示意图；Fig. 2 is a partial three-dimensional structural schematic diagram of the front view of the structure in Fig. 1;
图3为图2中结构的椅背下半部分移出后的部分立体结构示意图；Fig. 3 is a schematic diagram of a part of the three-dimensional structure after the lower half of the chair back of the structure in Fig. 2 is removed;
图4为图3中结构的基础支撑盒的前侧板和上导向盒体的前侧板均移出后的立体结构示意图。Fig. 4 is a three-dimensional structural schematic view of the structure in Fig. 3 after the front side panels of the basic support box and the front side panels of the upper guide box are removed.
以下具体实施例仅仅是对本发明的解释，其并不是对本发明的限制，本领域技术人员在阅读完本说明书后可以根据需要对本实施例做出没有创造性贡献的修改，但只要在本发明的权利要求范围内都受到专利法的保护。The following specific examples are only explanations of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications without creative contribution to the present embodiment as required after reading this specification, but as long as they are within the rights of the present invention All claims are protected by patent law.
实施例，如图1-4所示，一种椅子倚靠结构，包括椅座1、椅背2和头枕3，所述椅背2的背部固定有向下方伸展的基础支撑盒41，所述基础支撑盒41的下端一体连接有向前伸展的底连接臂42，所述底连接臂42与椅座1铰接连接并形成第一铰接部位a，可以看出，本申请的椅子是针对椅背2能活动的结构而设计的，也即椅背可以绕着椅座在前后间进行偏转的，这也是现有椅子常用的功能，使得人的后背可以向后靠了以后带动椅背向后偏转，但是现有的椅背会带动头枕一起向后翻转，导致头枕的位置也向后出现较大偏转，造成头枕的位置比较靠后，使得人的视线会朝天上而不能维持视线的稳定，则需要主动将头向前转而造成颈部头部得不到很好地倚靠。由此本申请进一步作了以下改进：Embodiments, as shown in Figures 1-4, a chair leaning structure, including a seat 1, a chair back 2 and a headrest 3, the back of the chair back 2 is fixed with a basic support box 41 extending downward, the The lower end of the base support box 41 is integrally connected with a bottom connecting arm 42 extending forward, and the bottom connecting arm 42 is hingedly connected with the seat 1 to form a first hinge part a. It can be seen that the chair of the present application is aimed at the seat back. 2. It is designed for a movable structure, that is, the back of the chair can be deflected around the seat between the front and the back. This is also a common function of existing chairs, so that the back of the person can drive the back of the chair backwards after leaning back Deflection, but the existing chair back will drive the headrest to flip backward together, resulting in a large deflection of the headrest position backward, resulting in a relatively rearward position of the headrest, so that people's sight will be directed toward the sky and cannot maintain sight If it is stable, it is necessary to actively turn the head forward, causing the neck and the head to not be well leaned on. Thus the application has further made the following improvements:
所述头枕3上连接有向下伸展并能穿设在所述基础支撑盒41上的头枕支撑组件，所述头枕支撑组件靠下的部分具有能在所述基础支撑盒41中相对所述基础支撑盒41上下移动的基础连接筋51，所述基础连接筋51的底端一体连接有向前伸展的底连接筋52，所述底连接筋52的前端与椅座1铰接连接并形成第二铰接部位b，所述第一铰接部位a位于所述第二铰接部位b的前方，所述底连接臂42的前后长度大于所述底连接筋52的前后长度。通过铰接部位位置的不同以及底连接臂42和底连接筋52的前后长度的差异，形成两个不同的偏转结构，使得椅背的向后靠偏转的幅度要明显大于头枕的向后偏转的幅度，能保持头枕的位置基本不会有大的移动，在这里，底连接臂42的长度优选为底连接筋52长度的5倍以上15倍以内即可，主要的目的在于，使得椅背绕着第一铰接部位a的转动半径明显大于头枕3绕着第二铰接部位b的转动半径，通常情况，只要控制椅背绕着第一铰接部位a的转动半径为头枕3绕着第二铰接部位b的转动半径的3倍以上至10倍以内即可，由于第一铰接部位a不一定在底连接臂42的前端，所以椅背和头枕的转动半径的比值是会比底连接臂42和底连接筋52的长度比值要小一些的。这样，转动幅度的落差，就会使得椅背向后偏转过程中相对头枕会下降，而头枕可以基本上保持不动，也即两者不同步偏转，使得头枕的位置能保持在正常使用状态，也即初始状态，初始状态就是椅背没有向后偏转的状态，而在椅背大幅偏转过程中，椅背对人体的腰背有很好的缓解疲劳的作用，同时，头枕基本保持原位，所以头颈部位依然得到很好的支撑还能保持视线仍然是向前的，不会影响开会、看电视、办公等。连接筋可以采用金属的钢材等制作，基础支撑盒41和底连接臂42可以采用注塑材料一体注塑成型。基础支撑盒41可以采用现有固定方式固定在椅背上即可。头枕支撑组件与头枕也可以采用现有的连接方式连接住即可，在这个地方，头枕与头枕支撑组件的连接可以不用固定的，只要连接住即可，这里可以允许头枕与头枕支撑组件连接后上下能调节，那么采用上下可调节的连接结构即可。The headrest 3 is connected with a headrest support assembly that extends downward and can be passed through the base support box 41. The lower part of the headrest support assembly has a The base support box 41 moves up and down the base connecting rib 51, the bottom end of the base connecting rib 51 is integrally connected with the bottom connecting rib 52 extending forward, the front end of the bottom connecting rib 52 is hingedly connected with the seat 1 and A second hinged part b is formed, the first hinged part a is located in front of the second hinged part b, and the front-rear length of the bottom connecting arm 42 is greater than the front-rear length of the bottom connecting rib 52 . Through the difference in the positions of the hinge parts and the difference in the front and rear lengths of the bottom connecting arm 42 and the bottom connecting rib 52, two different deflection structures are formed, so that the deflection range of the backrest is obviously greater than that of the headrest. range, the position of the headrest can be kept substantially without large movement. Here, the length of the bottom connecting arm 42 is preferably within 5 times or more than 15 times of the length of the bottom connecting rib 52. The main purpose is to make the seat back The radius of rotation around the first hinge part a is obviously greater than the radius of rotation of the headrest 3 around the second hinge part b. Normally, as long as the radius of rotation around the first hinge part a of the seat back is controlled to be the headrest 3 around the second hinge The radius of rotation of the second hinge part b can be more than 3 times to within 10 times. Since the first hinge part a is not necessarily at the front end of the bottom connecting arm 42, the ratio of the rotation radius of the seat back and the headrest will be greater than that of the bottom connection. The length ratio of the arm 42 and the bottom connecting rib 52 is smaller. In this way, the drop in the rotation range will cause the seat back to fall relative to the headrest during the backward deflection process, while the headrest can basically remain still, that is, the two deflect out of sync, so that the position of the headrest can be maintained at normal The state of use, that is, the initial state, the initial state is the state where the back of the chair does not deflect backward, and in the process of large deflection of the back of the chair, the back of the chair has a good effect on relieving fatigue on the back of the human body. At the same time, the headrest basically Stay in place, so the head and neck are still well supported and the line of sight is still forward, which will not affect meetings, watching TV, working, etc. The connecting ribs can be made of metal steel, etc., and the base support box 41 and the bottom connecting arm 42 can be integrally injection-molded using injection molding materials. The basic support box 41 can be fixed on the back of the chair in an existing fixing manner. The headrest support assembly and the headrest can also be connected by the existing connection method. In this place, the connection between the headrest and the headrest support assembly can be fixed, as long as they are connected. Here, the headrest and the headrest support assembly can be connected. After the headrest support assembly is connected, it can be adjusted up and down, so a connection structure that can be adjusted up and down can be used.
为了进一步确保上述方案的实现，即在椅背向后偏转后头枕基本上位置不变的方案，做如下优化： In order to further ensure the realization of the above scheme, that is, the scheme in which the position of the headrest basically remains unchanged after the back of the seat is deflected backward, the following optimization is done:
所述基础支撑盒41内具有供基础连接筋51上下相对穿行的基础支撑腔410，所述基础支撑盒41的前侧板上开设有供底连接筋52前后穿过并上下相对移动的前侧基础导向槽520，所述基础支撑盒41和所述底连接臂42的一体连接部位处开设有与所述前侧基础导向槽520的底部连通的过渡槽412，过渡槽412是在所述基础支撑盒41和所述底连接臂42靠内侧转角的部位上，即在基础支撑盒41的前侧板与底连接臂42上侧板一体连接的部位上。进一步，初始状态，所述基础连接筋51与底连接筋52的一体连接部位处于过渡槽412中，使得基础连接筋51与底连接筋52的一体连接部位与基础支撑盒41和所述底连接臂42的一体连接部位是在同一位置，那么在椅背偏转过程形成一个较好的开始状态，一旦椅背向后下方偏转，椅背明显下移，头枕支撑组件和头枕明显相对就向前上方移动，其实就是保持了头枕的位置基本上不会移动或者位置变化较小，当然在这种设计中，如果想让头枕也有需要有足够的偏转能力来满足休息躺卧的要求，则可以改变前述的转动半径比即可，例如将底连接臂42设计的短一些，第一铰接部位a的部位靠后一些，都是可以让头枕的转动幅度有提升。但本申请的结构中主要的特点就是在于，实现了椅背的偏转与头枕的偏转是不同步的，能够更好地适用于需要在椅子各种状态保证人体头部视线基本稳定的需求。The base support box 41 has a base support cavity 410 for the base connecting ribs 51 to pass through relative to each other up and down. The foundation guide groove 520, the transition groove 412 communicating with the bottom of the front side foundation guide groove 520 is opened at the integral connection part of the foundation support box 41 and the bottom connecting arm 42, the transition groove 412 is in the foundation The support box 41 and the bottom connecting arm 42 are located near the inner corner, that is, the front side plate of the basic support box 41 is integrally connected with the bottom connecting arm 42 upper side plate. Further, in the initial state, the integrated connection part of the basic connecting rib 51 and the bottom connecting rib 52 is in the transition groove 412, so that the integral connecting part of the basic connecting rib 51 and the bottom connecting rib 52 is connected to the basic support box 41 and the bottom The integral connection part of the arm 42 is at the same position, so a better starting state is formed in the deflection process of the seat back. The front and upper movement actually means that the position of the headrest basically does not move or the position changes slightly. Of course, in this design, if you want the headrest to also have enough deflection ability to meet the requirements of rest and lying, Then the aforementioned ratio of the turning radius can be changed. For example, the design of the bottom connecting arm 42 is shorter, and the position of the first hinge part a is behind, which can improve the turning range of the headrest. However, the main feature of the structure of the present application is that the deflection of the chair back and the headrest are asynchronous, which is better suited to the need to ensure a basically stable line of sight of the human head in various states of the chair.
作为优选，所述基础连接筋51的上端还铰接有向上伸展的第一导向连接座6，所述第一导向连接座6的上端部位铰接向上伸展的中间连接筋53，第一导向连接座6也可以采用注塑件，中间连接筋53也可以采用钢材制作。进一步，所述基础支撑盒41中形成有底部与所述基础支撑腔410连通并向上伸展的供第一导向连接座6和所述中间连接筋53上下相对穿行的基础支撑槽411，使得导向性更好。进一步，所述中间连接筋53上端伸出所述基础支撑槽411，所述中间连接筋53上端还铰接有向上伸展的第二导向连接座7，所述第二导向连接座7靠上的部分与所述头枕3连接住。第二导向连接座7也可以采用注塑件。那么头枕支撑组件其实就是包括了基础连接筋51、底连接筋52、第一导向连接座6、所述中间连接筋53、第二导向连接座7这些基本构件。As a preference, the upper end of the basic connecting rib 51 is also hinged with an upwardly extending first guide connecting seat 6, the upper end of the first guiding connecting seat 6 is hinged with an upwardly extending intermediate connecting rib 53, and the first guiding connecting seat 6 Injection molded parts can also be used, and the middle connecting rib 53 can also be made of steel. Further, the base support box 41 is formed with a base support groove 411 whose bottom communicates with the base support cavity 410 and extends upwards for the first guide connecting seat 6 and the intermediate connecting rib 53 to pass up and down relative to each other, so that the guiding better. Further, the upper end of the intermediate connecting rib 53 protrudes from the basic support groove 411, and the upper end of the intermediate connecting rib 53 is also hinged with a second guiding connecting seat 7 extending upward, and the upper part of the second guiding connecting seat 7 is Connect with the headrest 3. The second guide connection seat 7 can also be an injection molded part. Then the headrest support assembly actually includes basic components such as the basic connecting rib 51 , the bottom connecting rib 52 , the first guiding connecting seat 6 , the middle connecting rib 53 , and the second guiding connecting seat 7 .
进一步，所述第一导向连接座6中具有上下伸展的第一导向槽60，所述基础支撑盒41上固定有处在所述第一导向槽60中并能相对所述第一导向槽60上下移动的第一导向块61，具体为基础支撑盒41的后侧板处于基础支撑盒41内即前侧的位置安装第一导向块61，为了安装第一导向块61，所述第一导向槽60的槽底还开设有上下伸展供第一导向块61与所述基础支撑盒41固定安装用的安装槽62，第一导向块61放在第一导向槽60中，螺栓等锁紧件穿过安装槽62就能将第一导向块61安装固定在基础支撑盒41中。进一步优选，所述安装槽62的左右长度小于所述第一导向块61的左右长度，这样就使得第一导向块61不会向后掉出第一导向槽60，第一导向槽60的槽底两侧对第一导向块61有向后的限位作用。这样设计，进一步提升联动的效果，并使得导向性更加稳定。Further, the first guide connection seat 6 has a first guide groove 60 extending up and down, and the base support box 41 is fixed with a The first guide block 61 that moves up and down is specifically that the rear side plate of the base support box 41 is in the position of the front side in the base support box 41 and the first guide block 61 is installed. In order to install the first guide block 61, the first guide The groove bottom of the groove 60 is also provided with an installation groove 62 extending up and down for the fixed installation of the first guide block 61 and the basic support box 41. The first guide block 61 is placed in the first guide groove 60, and locking elements such as bolts The first guide block 61 can be installed and fixed in the base support box 41 through the installation groove 62 . Further preferably, the left-right length of the installation groove 62 is less than the left-right length of the first guide block 61, so that the first guide block 61 will not fall out of the first guide groove 60 backwards, and the groove of the first guide groove 60 Both sides of the bottom have a backward limiting effect on the first guide block 61 . This design further improves the linkage effect and makes the guidance more stable.
作为优选，所述第二导向连接座7包括用于跟中间连接筋53上端铰接的并左右延伸的底导向板71以及所述底导向板71左右两端分别一体连接有并向上伸展的左导向块72和右导向块73，所述左导向块72和右导向块73上端部分与头枕3连接住。所述左导向块72和右导向块73的上端可以一体连接上下延伸的套筒结构套接在头枕3上。Preferably, the second guide connection seat 7 includes a bottom guide plate 71 that is hinged to the upper end of the middle connecting rib 53 and extends left and right, and a left guide plate 71 that is integrally connected to the left and right ends of the bottom guide plate 71 and extends upward. Block 72 and right guide block 73, described left guide block 72 and right guide block 73 upper end parts are connected with headrest 3. The upper ends of the left guide block 72 and the right guide block 73 can be integrally connected to the sleeve structure extending up and down and sleeved on the headrest 3 .
为了进一步提升导向和联动性，所述椅背2的背部还固定有供所述第二导向连接座7上下相对穿行的上导向盒体8。上导向盒体8也可以采用注塑件。具体，所述上导向盒体8中形成有左右分别供左导向块72和右导向块73上下相对移动并向上穿出所述上导向盒体8的左侧槽720和右侧槽730以及与左侧槽720和右侧槽730底部均连通的供所底导向板71上下移动的中间主体槽710。所述左导向块72和右导向块73上下靠中间的部分呈向后拱起的弧形状，以优化结构，左侧槽720和右侧槽730也相应具有弧形的部分，这样的结构设计还能减少头枕向后的偏转量。In order to further improve the guiding and linkage performance, the back of the chair back 2 is also fixed with an upper guiding box body 8 for the second guiding connecting seat 7 to pass up and down relative to each other. Last guiding box body 8 also can adopt injection molded part. Specifically, the upper guide box body 8 is formed with a left side groove 720 and a right side groove 730 respectively for the left guide block 72 and the right guide block 73 to move up and down relative to each other and to go out of the upper guide box body 8 . The bottoms of the left side slot 720 and the right side slot 730 are connected to the middle body slot 710 for the bottom guide plate 71 to move up and down. The upper and lower parts of the left guide block 72 and the right guide block 73 are in the shape of an arc arched backwards to optimize the structure. The left slot 720 and the right slot 730 also have arc-shaped parts correspondingly. Such a structural design It also reduces the amount of rearward deflection of the headrest.
所述底导向板71前侧板面上一体连接有向前穿出所述上导向盒体8的前侧板并用于跟所述中间连接筋53上端铰接的上铰接板711，所述上导向盒体8的前侧板上开设有供所述上铰接板711向前穿出并上下相对移动的上通行槽80，上铰接板711可以设置左右间隔的两个，中间连接筋53上端处在左右两个上铰接板711之间并通过铰接轴铰接住。使得偏转的稳定性更好。上述提及的铰接结构的铰接轴均是在所有方向延伸的，也即能产生偏转的结构都是在前后方向的。The front side plate of the bottom guide plate 71 is integrally connected with an upper hinge plate 711 that passes through the front side plate of the upper guide box body 8 and is used to hinge with the upper end of the middle connecting rib 53 . The front side plate of the box body 8 is provided with an upper passage groove 80 for the upper hinged plate 711 to pass forward and move up and down relatively. Between the two upper hinge plates 711 on the left and right, they are hinged by hinge shafts. Make the deflection stability better. The hinge axes of the above-mentioned hinged structures all extend in all directions, that is, the structures that can generate deflection are all in the front-back direction.
作为优选，所述基础连接筋51与底连接筋52的一体连接部位并呈弧形连接状，所述基础支撑盒41与底连接臂板42的一体连接部位也呈弧形连接状，形成弧形的圆角构造，优化结构受力分布。As a preference, the integral connection portion of the basic connecting rib 51 and the bottom connecting rib 52 is arc-shaped, and the integral connection portion of the basic support box 41 and the bottom connecting arm plate 42 is also arc-shaped, forming an arc. The rounded corner structure of the shape optimizes the force distribution of the structure.
上述的整个依靠结构从初始状态开始，人通过腰背抵靠椅背后向后做躺的姿势，椅背就先后偏转，椅背带着基础支撑盒41和上导向盒体8一起大幅偏转，而头枕支撑组件偏转幅度很小，就使得椅背带着基础支撑盒41和上导向盒体8相对头枕支撑组件是向下向后偏转的，并且上述各种铰接点的设置，使得头枕支撑组件的上下靠中间的结构是能产生联动变形并能使得头枕的向后偏转量是小于椅背的向后偏转量50%以上的，这样，头枕的位置可以跟初始状态基本上能很接近，从而保证头部支撑的有效性和视角的稳定性，如果要恢复，只要人的腰背向前回位即可，则椅背和头枕都会恢复到初始状态，当然，底连接臂42和椅座1除了铰接的结构，还需要设置复位的结构，例如现有的一些弹性复位结构，使得向后偏转的椅背，当人的腰背向前移动离开椅背后，椅背能自行向前偏转复位。The entire above-mentioned relying structure starts from the initial state, and the person leans against the back of the chair to make a lying posture backward, and the back of the chair deflects successively. The deflection range of the pillow support assembly is very small, so that the seat back with the basic support box 41 and the upper guide box body 8 deflects downward and backward relative to the headrest support assembly, and the above-mentioned various hinge points are set so that the headrest support assembly The up and down middle structure can produce linkage deformation and can make the backward deflection of the headrest less than 50% of the backward deflection of the seat back. In this way, the position of the headrest can be basically close to the initial state , so as to ensure the effectiveness of the head support and the stability of the viewing angle. If it is to be restored, as long as the person's back returns forward, the chair back and the headrest will return to the original state. Of course, the bottom connecting arm 42 and the chair In addition to the hinged structure, seat 1 also needs to be equipped with a reset structure, such as some existing elastic reset structures, so that the back of the chair deflects backward. When the back of the person moves forward and leaves the back of the chair, the back of the chair can deflect forward by itself reset.
本实施例还提供一种椅子，其包括前述的椅子倚靠结构，将这种椅子倚靠结构运用各种椅子结构中去即可。This embodiment also provides a chair, which includes the aforementioned chair leaning structure, which can be used in various chair structures.
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到各种等效的修改或替换，这些修改或替换都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以权利要求的保护范围为准。The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person familiar with the technical field can easily think of various equivalents within the technical scope disclosed in the present invention. Modifications or replacements shall all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
Claims (10)
- 一种椅子倚靠结构，其特征在于：包括椅座（1）、椅背（2）和头枕（3），所述椅背（2）的背部固定有向下方伸展的基础支撑盒（41），所述基础支撑盒（41）的下端一体连接有向前伸展的底连接臂（42），所述底连接臂（42）与椅座（1）铰接连接并形成第一铰接部位（a），所述头枕（3）上连接有向下伸展并能穿设在所述基础支撑盒（41）上的头枕支撑组件，所述头枕支撑组件靠下的部分具有能在所述基础支撑盒（41）中相对所述基础支撑盒（41）上下移动的基础连接筋（51），所述基础连接筋（51）的底端一体连接有向前伸展的底连接筋（52），所述底连接筋（52）的前端与椅座（1）铰接连接并形成第二铰接部位（b），所述第一铰接部位（a）位于所述第二铰接部位（b）的前方，所述底连接臂（42）的前后长度大于所述底连接筋（52）的前后长度。A chair leaning structure, characterized in that it comprises a seat (1), a chair back (2) and a headrest (3), and the back of the chair back (2) is fixed with a basic support box (41) extending downward , the lower end of the base support box (41) is integrally connected with a bottom connecting arm (42) extending forward, and the bottom connecting arm (42) is hingedly connected with the seat (1) to form a first hinged part (a) , the headrest (3) is connected with a headrest support assembly that extends downward and can pass through the base support box (41), the lower part of the headrest support assembly has a The base connecting rib (51) in the support box (41) moves up and down relative to the base support box (41), the bottom end of the base connecting rib (51) is integrally connected with the bottom connecting rib (52) extending forward, The front end of the bottom connecting rib (52) is hingedly connected with the seat (1) to form a second hinged part (b), the first hinged part (a) is located in front of the second hinged part (b), The front and rear lengths of the bottom connecting arms (42) are greater than the front and rear lengths of the bottom connecting ribs (52).
- 根据权利要求1所述的一种椅子倚靠结构，其特征在于：所述基础支撑盒（41）内具有供基础连接筋（51）上下相对穿行的基础支撑腔（410），所述基础支撑盒（41）的前侧板上开设有供底连接筋（52）前后穿过并上下相对移动的前侧基础导向槽（520），所述基础支撑盒（41）和所述底连接臂（42）的一体连接部位处开设有与所述前侧基础导向槽（520）的底部连通的过渡槽（412），初始状态，所述基础连接筋（51）与底连接筋（52）的一体连接部位处于过渡槽（412）中。The chair leaning structure according to claim 1, characterized in that: the base support box (41) has a base support cavity (410) for the base connecting ribs (51) to pass through relatively up and down, and the base support box (41) The front side plate of (41) is provided with a front base guide groove (520) for the bottom connecting rib (52) to pass through and move up and down relative to each other. The base support box (41) and the bottom connecting arm (42) ) is provided with a transition groove (412) connected to the bottom of the front basic guide groove (520). In the initial state, the integral connection between the basic connecting rib (51) and the bottom connecting rib (52) The position is in the transition groove (412).
- 根据权利要求1所述的一种椅子倚靠结构，其特征在于：所述基础连接筋（51）的上端还铰接有向上伸展的第一导向连接座（6），所述第一导向连接座（6）的上端部位铰接向上伸展的中间连接筋（53），所述基础支撑盒（41）中形成有底部与所述基础支撑腔（410）连通并向上伸展的供第一导向连接座（6）和所述中间连接筋（53）上下相对穿行的基础支撑槽（411），所述中间连接筋（53）上端伸出所述基础支撑槽（411），所述中间连接筋（53）上端铰接有向上伸展的第二导向连接座（7），所述第二导向连接座（7）靠上的部分与所述头枕（3）连接住。A chair leaning structure according to claim 1, characterized in that: the upper end of the basic connecting rib (51) is also hinged with a first guiding connecting seat (6) extending upwards, and the first guiding connecting seat ( 6) The upper end part is hinged to the middle connecting rib (53) extending upward, and the base support box (41) is formed with a first guide connecting seat (6 ) and the basic support groove (411) that the intermediate connecting rib (53) passes up and down relative to each other, the upper end of the intermediate connecting rib (53) protrudes from the basic supporting groove (411), and the upper end of the intermediate connecting rib (53) A second guide connection seat (7) extending upward is hinged, and the upper part of the second guide connection seat (7) is connected with the headrest (3).
- 根据权利要求3所述的一种椅子倚靠结构，其特征在于：所述第一导向连接座（6）中具有上下伸展的第一导向槽（60），所述基础支撑盒（41）上固定有处在所述第一导向槽（60）中并能相对所述第一导向槽（60）上下移动的第一导向块（61），所述第一导向槽（60）的槽底还开设有上下伸展供第一导向块（61）与所述基础支撑盒（41）固定安装用的安装槽（62），所述安装槽（62）的左右长度小于所述第一导向块（61）的左右长度。The chair leaning structure according to claim 3, characterized in that: the first guide connecting seat (6) has a first guide groove (60) extending up and down, and the base support box (41) is fixed on There is a first guide block (61) which is in the first guide groove (60) and can move up and down relative to the first guide groove (60), and the groove bottom of the first guide groove (60) also has a There is an installation groove (62) extending up and down for the fixed installation of the first guide block (61) and the base support box (41), the left and right length of the installation groove (62) is smaller than that of the first guide block (61) left and right length.
- 根据权利要求3所述的一种椅子倚靠结构，其特征在于：所述第二导向连接座（7）包括用于跟中间连接筋（53）上端铰接的并左右延伸的底导向板（71）以及所述底导向板（71）左右两端分别一体连接有并向上伸展的左导向块（72）和右导向块（73），所述左导向块（72）和右导向块（73）上端部分与头枕（3）连接住。A chair leaning structure according to claim 3, characterized in that: the second guide connecting seat (7) includes a bottom guide plate (71) extending left and right for being hinged to the upper end of the middle connecting rib (53) And the left and right guide blocks (72) and right guide blocks (73) are integrally connected to the left and right ends of the bottom guide plate (71) and extend upwards, the upper ends of the left guide block (72) and the right guide block (73) The part is connected with the head restraint (3).
- 根据权利要求5所述的一种椅子倚靠结构，其特征在于：所述椅背（2）的背部还固定有供所述第二导向连接座（7）上下相对穿行的上导向盒体（8）。A chair leaning structure according to claim 5, characterized in that: the back of the chair back (2) is also fixed with an upper guide box (8) for the second guide connecting seat (7) to pass through relatively up and down ).
- 根据权利要求6所述的一种椅子倚靠结构，其特征在于：所述上导向盒体（8）中形成有左右分别供左导向块（72）和右导向块（73）上下相对移动并向上穿出所述上导向盒体（8）的左侧槽（720）和右侧槽（730）以及与左侧槽（720）和右侧槽（730）底部均连通的供所底导向板（71）上下移动的中间主体槽（710）。A chair leaning structure according to claim 6, characterized in that: the upper guide box body (8) is formed with left and right guide blocks (72) and right guide blocks (73) for relative movement up and down and upward Pass through the left groove (720) and right groove (730) of the upper guide box body (8) and the supply bottom guide plate ( 71) Center body slot (710) that moves up and down.
- 根据权利要求5所述的一种椅子倚靠结构，其特征在于：所述底导向板（71）上一体连接有向前穿出所述上导向盒体（8）并用于跟所述中间连接筋（53）上端铰接的上铰接板（711），所述上导向盒体（8）上开设有供所述上铰接板（711）向前穿出并上下相对移动的上通行槽（80）。The leaning structure of a chair according to claim 5, characterized in that: the bottom guide plate (71) is integrally connected with ribs that go out of the upper guide box (8) forward and are used to connect with the middle (53) An upper hinged plate (711) whose upper end is hinged. The upper guide box (8) is provided with an upper passage groove (80) for the upper hinged plate (711) to pass forward and move up and down relative to each other.
- 根据权利要求1所述的一种椅子倚靠结构，其特征在于：所述基础连接筋（51）与底连接筋（52）的一体连接部位并呈弧形连接状，所述基础支撑盒（41）与底连接臂（42）的一体连接部位也呈弧形连接状。A chair leaning structure according to claim 1, characterized in that: the integral connection part of the basic connecting rib (51) and the bottom connecting rib (52) is in an arc-shaped connection shape, and the basic supporting box (41 ) and the integral connecting portion of the bottom connecting arm (42) are also arc-shaped.
- 一种椅子，其特征在于：包括权利要求1-9任一所述的一种椅子倚靠结构。A chair, characterized by comprising the chair leaning structure described in any one of claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2021/133156 WO2023092391A1 (en) | 2021-11-25 | 2021-11-25 | Chair leaning structure and chair |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2021/133156 WO2023092391A1 (en) | 2021-11-25 | 2021-11-25 | Chair leaning structure and chair |
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| Publication Number | Publication Date |
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| WO2023092391A1 true WO2023092391A1 (en) | 2023-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/CN2021/133156 WO2023092391A1 (en) | 2021-11-25 | 2021-11-25 | Chair leaning structure and chair |
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| WO (1) | WO2023092391A1 (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW206150B (en) * | 1990-10-12 | 1993-05-21 | J E Ekornes As | |
| CN101277632A (en) * | 2005-10-03 | 2008-10-01 | 维特拉专利股份公司 | Chair |
| KR100889436B1 (en) * | 2007-10-15 | 2009-03-24 | 대원산업 주식회사 | Active headrest of vehicle seat |
| JP2009100912A (en) * | 2007-10-23 | 2009-05-14 | T S Tec Kk | Headrest support structure and seat |
| CN201267314Y (en) * | 2008-06-27 | 2009-07-08 | 礼恩派(嘉兴)有限公司 | Movable seat with linked head rest device |
| CN102151023A (en) * | 2007-01-29 | 2011-08-17 | 赫尔曼米勒有限公司 | Seating structure and methods for the use thereof |
| CN103096759A (en) * | 2011-01-17 | 2013-05-08 | 刈木家具株式会社 | Chair |
| CN108542162A (en) * | 2012-09-20 | 2018-09-18 | 斯迪尔科斯公司 | Back mechanism and control assembly |
| CN209135877U (en) * | 2018-07-17 | 2019-07-23 | 安吉达林家具有限公司 | A kind of backrest segmented chair |
| CN209694604U (en) * | 2019-03-11 | 2019-11-29 | 深圳市家维依家居有限公司 | Seat |
| CN110638241A (en) * | 2019-10-23 | 2020-01-03 | 北京优进家具有限公司 | Comfortable seat |
| CN112754208A (en) * | 2020-12-30 | 2021-05-07 | 永艺家具股份有限公司 | Ergonomic seat |
| JP2021106758A (en) * | 2019-12-27 | 2021-07-29 | 株式会社イトーキ | Chair with headrest |
| CN214631141U (en) * | 2020-12-30 | 2021-11-09 | 永艺家具股份有限公司 | Chair back assembly |
-
2021
- 2021-11-25 WO PCT/CN2021/133156 patent/WO2023092391A1/en unknown
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW206150B (en) * | 1990-10-12 | 1993-05-21 | J E Ekornes As | |
| CN101277632A (en) * | 2005-10-03 | 2008-10-01 | 维特拉专利股份公司 | Chair |
| CN102151023A (en) * | 2007-01-29 | 2011-08-17 | 赫尔曼米勒有限公司 | Seating structure and methods for the use thereof |
| KR100889436B1 (en) * | 2007-10-15 | 2009-03-24 | 대원산업 주식회사 | Active headrest of vehicle seat |
| JP2009100912A (en) * | 2007-10-23 | 2009-05-14 | T S Tec Kk | Headrest support structure and seat |
| CN201267314Y (en) * | 2008-06-27 | 2009-07-08 | 礼恩派(嘉兴)有限公司 | Movable seat with linked head rest device |
| CN103096759A (en) * | 2011-01-17 | 2013-05-08 | 刈木家具株式会社 | Chair |
| CN108542162A (en) * | 2012-09-20 | 2018-09-18 | 斯迪尔科斯公司 | Back mechanism and control assembly |
| CN209135877U (en) * | 2018-07-17 | 2019-07-23 | 安吉达林家具有限公司 | A kind of backrest segmented chair |
| CN209694604U (en) * | 2019-03-11 | 2019-11-29 | 深圳市家维依家居有限公司 | Seat |
| CN110638241A (en) * | 2019-10-23 | 2020-01-03 | 北京优进家具有限公司 | Comfortable seat |
| JP2021106758A (en) * | 2019-12-27 | 2021-07-29 | 株式会社イトーキ | Chair with headrest |
| CN112754208A (en) * | 2020-12-30 | 2021-05-07 | 永艺家具股份有限公司 | Ergonomic seat |
| CN214631141U (en) * | 2020-12-30 | 2021-11-09 | 永艺家具股份有限公司 | Chair back assembly |
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