WO2022213591A1 - 椅子及其托盘 - Google Patents
椅子及其托盘 Download PDFInfo
- Publication number
- WO2022213591A1 WO2022213591A1 PCT/CN2021/128912 CN2021128912W WO2022213591A1 WO 2022213591 A1 WO2022213591 A1 WO 2022213591A1 CN 2021128912 W CN2021128912 W CN 2021128912W WO 2022213591 A1 WO2022213591 A1 WO 2022213591A1
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- WIPO (PCT)
- Prior art keywords
- connecting shaft
- locking
- seat
- base
- shaft
- Prior art date
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- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 description 20
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
- A47C7/56—Parts or details of tipping-up chairs, e.g. of theatre chairs
- A47C7/60—Use of locks or ledges for limiting the seat movement
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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
-
- 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
- A47C7/002—Chair or stool bases
-
- 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
Definitions
- the invention relates to the field of home furnishing, in particular to a chair and a tray thereof.
- Chinese Patent No. 202010885721.0 introduces a chair and its self-loading tray, which records: a fixed seat fixedly connected with the support rod of the seat, a first base fixedly connected with the seat, and a fixed connection with the seat back
- the second base is provided with two first spring assemblies, a lock plate, a first connecting shaft and a second connecting shaft, the first connecting shaft is located in front of the second connecting shaft , one end of the second base is hinged with the first base, the other end of the second base is hinged with the fixed seat, the first base is movably connected with the fixed seat through a first connecting shaft, and the second connecting shaft is fixed Installed on the fixed seat, the front end of the lock plate is rotatably installed on the first connection shaft, the rear end of the lock plate is movably connected with the second connection shaft, and the two first spring assemblies are respectively located on the lock plate.
- the front end of the first spring assembly is movably connected to the first connecting shaft, the rear end of the first spring assembly is movably connected to the second connecting shaft, and a tilting locking assembly is also provided, including a tilting cable and
- the first mounting seat and the locking bolt mounting seat are installed on the fixed seat as shown in the figure, and the second spring assembly installed on the first mounting seat and movable left and right is installed on the locking bolt mounting seat.
- the seat moves left and right and then cooperates with the locking portion to limit the rotation of the locking plate;
- the plurality of locking portions at least include first locking long holes and second locking long holes distributed at intervals, and the first locking long holes are located at the rear of the second locking long holes , both ends of the first locking long hole and both ends of the second locking long hole point in the up and down direction.
- the lock plate structure and the reset structure of the tray are connected to each other, so that the structure for locking occupies more tray space; When the tongue is locked, the locking effect of the tray is unstable.
- the purpose of the present invention is to provide a chair and its tray with a more compact structure and more stable locking.
- a tray comprising a base for installing chair legs, a top seat for installing a seat seat, and a tail seat for installing a seat back, the top seat There is a first connecting part extending downward, the tail seat includes a second connecting part extending forward, the base is movably connected with the first connecting part of the top seat through a first connecting shaft, and the base
- the tailstock is hinged with the second connection part of the tailstock through a fourth connection shaft, the tailstock is hinged with the first connection part of the top seat through a fifth connection shaft, and the first connection shaft is located in the fifth connection Behind the shaft, the fourth connecting shaft is located between the first connecting shaft and the fifth connecting shaft, the fourth connecting shaft is located below the first connecting shaft and the fifth connecting shaft, and the first connecting shaft is located below the fifth connecting shaft.
- An elastic reset member is arranged between the fifth connecting shaft and the fifth connecting shaft.
- the base is located between the two second connecting parts, and the two second connecting parts are located between the two first connecting parts between.
- it also includes a lock plate oscillatingly arranged in the base, the fourth connection shaft penetrates through the lock plate, and a third connection shaft penetrates through the lock plate, and both ends of the third connection shaft are connected to the lock plate.
- the two second connecting parts of the tailstock are connected to realize the synchronous action of the lock plate and the tailstock, and the third connecting shaft penetrates through the base and is slidably connected with it.
- the fourth connecting shaft and the third connecting shaft are located between the first connecting shaft and the fifth connecting shaft, and the third connecting shaft is located below the first connecting shaft and the fifth connecting shaft , the third connecting shaft is located in front of the fourth connecting shaft.
- a tilting locking assembly located below the third connecting shaft, including a tilting cable, a first mounting seat and a locking tongue mounting seat on the mounting base, and a spring assembly that can move left and right is mounted on the first mounting seat.
- a lock tongue assembly that can move left and right is installed on the lock tongue mounting seat, and a number of locking parts are provided on the lock plate, and the spring assembly can be moved left and right on the first mounting seat by tightening or loosening the tilting cable, Then, the lock tongue piece is driven to move left and right on the lock tongue mounting seat, and then cooperates with several locking parts to limit the swing of the lock plate, and then controls the tilt angle of the tailstock through the third connecting shaft.
- the locking part is a locking hole
- the lock The tongue piece is a locking pin, and the locking hole and the locking pin are connected by plugging and unplugging.
- a lifting locking assembly including a lifting cable and a pressure plate hinged in the base, the pressure plate is movably connected with the lifting cable; a cable steering sleeve is sleeved on the fourth connecting shaft, and the lifting cable is connected by the The pressure plate initially extends forward through the underside of the pull-wire steering sleeve.
- a top simple cover is fixedly connected to the front end of the top seat, and a bottom simple cover is hinged to the front end of the base.
- the top simple cover covers and movably connects the bottom simple cover, and the top simple cover moves the bottom simple cover. connect.
- the top simple cover protrudes with a second connecting shaft
- the bottom simple cover is provided with a second sliding hole
- the second connecting shaft is located in the second sliding hole
- the elastic reset member includes a compression spring and a retractable guide member, two ends of the guide member are respectively rotatably mounted on the first connecting shaft and the fifth connecting shaft, and the compression spring is located on the first connecting shaft and the fifth connecting shaft. between and sleeved on the guide.
- a chair comprising a tray as described above.
- the position of the sliding connection between the tailstock and the base is located at the rear, and the distance between the first connecting shaft and the fifth connecting shaft can be flexibly changed according to the actual use scene, so that the tray is more compact;
- the lock plate is directly connected to the It is slidably arranged in the base, and the lock plate and the tailstock realize synchronous action through the third connection shaft and the fourth connection shaft, so that when the tray is in the locked state, it is more stable and effective;
- the lock plate and tilting components used for locking are all located in the first Below the first connecting shaft and the fifth connecting shaft, the locking plate can swing in a small range to complete the locking action, thereby further compacting the tray structure and making the locking effect more precise and stable;
- the locking plate is fan-shaped, and the locking hole for locking is close to The arc-shaped edge of the lock plate can reduce the volume of the lock plate;
- the lock plate is located below the third connecting shaft, so that the tilting locking assembly matched with it can be reduced, and the structure of the tray is more compact
- Fig. 1 is the structural representation of the chair of the present invention
- Fig. 2 is the exploded view of the chair structure of the present invention
- Fig. 3 is the connection structure schematic diagram 1 of the base, the tailstock and the top seat of the present invention
- FIG. 4 is a second schematic diagram of the connection structure of the base, the tailstock and the top seat of the present invention.
- FIG. 5 is a schematic structural diagram 1 of the tilting locking assembly and the lifting locking assembly of the present invention.
- FIG. 6 is a second structural schematic diagram of the tilting locking assembly and the lifting locking assembly of the present invention.
- FIG. 7 is a third structural schematic diagram of the tilting locking assembly and the lifting locking assembly of the present invention.
- First Mounting seat 52, locking plate; 53, locking tongue piece; 54, second blocking part; 55, connecting piece; 56, locking tongue mounting seat; 57, second mounting seat; 58, pressing plate; 59, switch torsion spring; 61, the first connecting shaft; 62, the second connecting shaft; 63, the third connecting shaft; 64, the fourth connecting shaft; 65, the fifth connecting shaft; 71, the tilting cable; 72, the lifting cable; 73, the locking part ; 74, the locking spring; 75, the wire steering sleeve; 76, the first blocking part.
- first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as “first” or “second” may expressly or implicitly include one or more of that feature.
- plural means two or more, unless otherwise expressly defined.
- the terms “installed”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components.
- installed e.g., it may be a fixed connection or a detachable connection , or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components.
- a first feature "on” or “under” a second feature may include the first and second features in direct contact, or may include the first and second features Not directly but through additional features between them.
- the first feature being “above”, “over” and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
- the first feature is “below”, “below” and “below” the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.
- each component in this specific embodiment is that when the chair is normally installed and used, the front of the chair is the front end and the front part, and the back of the office chair including the position of the seat back is the rear end and the rear part.
- a tray includes a base 1 for connecting chair legs, a top seat 2 for installing a seat seat, and a tail seat 3 for installing a seat back; the base 1 and the top
- the seat 2 is movably connected, the base 1 and the tailstock 3 are hinged, the top seat 2 and the tailstock 3 are hinged, and also includes a lock plate 52 swinging on the base 1 , by controlling the lock plate 52 The swing angle of the tail panel 3 is locked.
- the top seat 2 is integrally formed with two downwardly extending first connecting portions 21
- the tail seat 3 includes two second connecting portions 31 , which are fixedly arranged between the two second connecting portions 31 .
- There is a tail plate 32 the base 1 is located between the two second connecting parts 31, the base 1 is located in front of the tail plate 32, the two second connecting parts 31 are located between the two first connecting parts 21, the base 1
- the first connecting shaft 61 is movably connected with the two first connecting parts 21 of the top seat 2, and the base 1 is hinged with the two second connecting parts 31 of the tailstock 3 through the fourth connecting shaft 64, so
- the tailstock 3 is hinged with the first connection part 21 of the top seat 2 through a fifth connection shaft 65
- the fourth connection shaft 64 penetrates through the lock plate 52
- the lock plate 52 and the two second connection parts 31 is hinged through the third connecting shaft 63
- the fourth connecting shaft 64 and the third connecting shaft 63 are located between the first connecting shaft 61 and the fifth connecting shaft 65, the first connecting shaft 61 and the An
- the two first connecting parts 21 of the top seat 2 are provided with third sliding holes 22 , and the two ends of the first connecting shaft 61 are divided into two third sliding holes 22 through which the two third sliding holes 22 pass.
- the first connecting shaft 61 is slidably matched with the two third sliding holes 22; the first connecting shaft 61 is sleeved with two sliding bushings, the base 1 is located between the two sliding bushings, and the sliding The shaft sleeve is located in the third sliding hole 22 and is slidably fitted.
- the fifth connecting shaft 65 is located at the front of the base 1
- the first connecting shaft 61 is located at the rear section of the base 1 and above the two second connecting parts 31 of the tailstock 3
- the fourth connection shaft 64 and the third connection shaft 63 are located between the first connection shaft 61 and the fifth connection shaft 65 .
- the third connecting shaft 63 is located in front of the fourth connecting shaft 64 .
- the left and right sides of the base 1 are provided with inclined first sliding holes 11 .
- a first sliding hole 11, the first sliding hole 11 is slidingly matched with the third connecting shaft 63; in this way, when the tailstock 3 is rotated to a certain angle, the third connecting shaft 63 is connected with the first sliding hole 11.
- the tailstock 3 will no longer move, which can avoid the risk of rollover caused by too large a tilting angle, and at the same time avoid the other components in the tray squeezing each other due to a too large tilting angle, thereby producing practical results.
- the lowest point of the sliding stroke of the third connecting shaft 63 is higher than the lowest point of the fourth connecting shaft 64 .
- the tailstock 3 rotates around the fourth connecting shaft 64, so the initial action when the tailstock 3 overturns is: the tailstock 3 drives the third connecting shaft 63 to move upwards and backwards, thereby avoiding complicated movement paths , to improve the stability of the tray.
- a top simple cover 23 and a bottom simple cover 12 are also included.
- the top simple cover 23 is fixed on the front side section of the bottom of the top base 2 , and the bottom simple cover 12 is hinged to the front end of the base 1 .
- the top simple cover 23 is slidingly matched with the bottom simple cover 12 ; the fifth connecting shaft 65 is located inside the top simple cover 23 .
- the top simple cover 23 is arc-shaped and the left and right sides are bent backward to cover the top section of the bottom simple cover 12, and the left and right sides of the top simple cover 23 are protruded inwardly with a second connecting shaft.
- the left and right sides of the bottom simple cover 12 are provided with inclined second sliding holes 13, and the second connecting shaft 62 extends into the second sliding hole 13 and movably cooperates with it;
- the simple cover 23 shields the front ends of the two second connecting parts 31 of the tailstock 3; when the top seat 1 moves upward, the top simple cover 23 is driven to move, and the top simple cover 23 drives the second connecting shaft 62 in the second sliding hole Slide within 13 to achieve an expanded visual effect.
- the elastic reset assembly 4 includes a compression spring 41 and a telescopic guide member 42 . Both ends of the guide member 42 are movably connected to the first connecting shaft 61 and the first connecting shaft 61 and the retractable guide member 42 , respectively. On the fifth connecting shaft 65 , the compression spring 41 is sleeved on the guide member 42 .
- one end of the guide member 42 is fixed with a reset sleeve
- the reset sleeve is sleeved on the fifth connecting shaft 65
- the other end of the guide member 42 is fixed with a limit block
- the limit block is provided with The arc groove
- the limit block presses the first connecting shaft 61 through the arc groove
- the two ends of the compression spring 41 press the reset sleeve and the limit block respectively
- the guide member 4 is connected by plugging Guide post and guide bush.
- the tray further includes a tilt lock assembly 5 for controlling the tilt angle of the tailstock 3 as shown in FIGS. 5-7 , the tilt lock assembly 5 is located on the lock plate 52 and the third connection shaft 63
- the tilting locking assembly 5 includes a tilting cable 71, a first mounting seat 51 and a locking bolt mounting seat 56 installed in the base 1, and a locking bolt that can move left and right is installed on the locking bolt mounting seat 56
- a spring assembly that can move left and right is installed on the first mounting seat 51, and a plurality of locking parts 73 are provided on the locking plate 52.
- the tilt locking assembly 5 moves left and right, thereby driving the lock tongue assembly to move left and right on the lock tongue mounting seat 56, and then cooperates with several locking parts 73 to restrict the lock plate 52 from swinging, and then controls the tilt angle of the tailstock 3 through the third connecting shaft 63.
- the tilt locking assembly 5 when the tilt locking assembly 5 is in the locked state, the locking plate 52, the base 1, the top seat 2 and the tailstock 3 form a stable four-bar linkage mechanism, which is different from the three-bar linkage mechanism of the traditional pallet, the four-bar linkage mechanism runs more smoothly.
- the first mounting seat 51 is located below the third connecting shaft 63, and the locking tongue mounting seat 56 is located in front of the first mounting seat 51; this arrangement makes reasonable use of the space in the base 1, so that each zero in the support plate.
- the components are highly centralized, effectively reducing the occupied volume of the tray.
- the spring assembly includes a sliding rod slidably arranged on the first mounting seat 51 , the sliding rod penetrates the first mounting seat 51 , and the two ends of the sliding rod are respectively provided with first blocking parts 76 and the second blocking portion 54, the first mounting seat is located between the first blocking portion 76 and the second blocking portion 54, the spring assembly further includes a locking spring 74, the locking spring 74 is sleeved On the sliding rod, the locking spring 74 is located between the second blocking portion 54 and the first mounting seat 51; the locking bolt assembly includes a locking bolt member 53 and a connecting member 55, and the locking bolt member 53 penetrates the The lock tongue fixing seat 56 is slidably engaged with it, one end of the connecting piece 55 is fixed on one side of the locking tongue piece 53 , the other end of the connecting piece 55 is fixed on the first blocking part 76 , and the first blocking part 76 Cooperate with tilting cable 71 activities.
- the connecting piece 55 is an elastic piece
- the second blocking portion 54 is a screw threaded with the other end of the sliding rod
- the locking pin is provided in a plug-and-pull connection with the locking hole.
- the connecting piece 55 should be an elastic piece ;
- the connecting member 55 is a torsion spring.
- the locking tongue member 53 is a locking pin
- the locking plate 52 is fan-shaped
- the locking portion 73 is a locking hole
- several locking holes are close to one end of the arc-shaped edge of the locking plate 52, and the locking pin Plug-and-pull connection with the locking hole.
- the first blocking portion 76 is provided with a first channel through which only the tilting cable 71 passes, and a third blocking portion is fixed on one end of the tilting cable 71; when the tilting cable 71 passes through the first channel, the The three blocking parts collide with the first blocking part 76 , thereby preventing the tilting cable 71 from passing through the first blocking part 76 ; further preferably, the third blocking part is a sphere, a cylinder or other shapes.
- a lift lock assembly is also provided.
- the lift lock assembly is located behind the tilt lock assembly 5 and includes a lift wire 72 and a second mounting seat 57 installed in the base 1.
- the second mounting seat 57 faces upwards.
- a gas rod fixing hole for installing a lifting gas rod is recessed in the lower part.
- the gas rod fixing hole extends downward through the base 1 .
- the top of the second mounting seat 57 protrudes with two supports.
- a switch shaft is hinged therebetween, a pressure plate 58 is installed on the switch shaft, a switch torsion spring 59 for resetting the pressure plate 58 is arranged between the support and the pressure plate 58, and one end of the pressure plate 58 is mounted on the switch.
- the other end of the pressure plate 58 is movably connected with the lift wire 72; in this way, pulling the lift wire 72 drives one end of the pressure plate 58 to move down, and the pressure plate 58 presses down the switch of the gas rod and down
- the switch torsion spring 59 is pressed to accumulate force, and the lift wire 72 is released.
- the release of the switch torsion spring 59 drives the pressure plate 58 and the lift wire 72 to reset, and the gas lever switch resets itself.
- the pressure plate 58 is provided with a second channel that can only pass through the lifting cable 72, and a fourth blocking portion is fixed at one end of the lifting cable 72.
- the fourth blocking portion is connected to the pressure plate. 58 interferes, thereby preventing the lift wire 72 from continuing to pass through the pressure plate 58 .
- the third blocking portion is a sphere, a cylinder or other shapes.
- a pull wire steering sleeve 75 is sleeved on the fourth connecting shaft 64 , the lifting pull wire 72 starts from the pressing plate 58 and extends forward through the lower part of the pull wire turning sleeve 75 , and the lifting pull wire 72 extends forward. It extends forward through the base 1 and the bottom simple cover 12 ; in this solution, the lowest end of the movement stroke of the pressing plate 58 is higher than the lowest end of the pull wire turning sleeve 75 .
- This arrangement is convenient for the user to control the lifting of the tray, and the steering sleeve 75 is used to make the lifting cable 72 smooth, so as to prevent the lifting cable 72 from bending at a small angle at the turning position and affecting the service life of the tray.
- a chair comprising a tray as described above. It also includes the support feet installed on the base 1 , the seat back installed on the tail seat 3 and the seat seat installed on the top seat 3 .
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
一种椅子及其托盘，托盘包括用于安装椅脚的底座（1）、用于安装椅座的顶座（2）和用于安装椅背的尾座（3），底座（1）通过第一连接轴（61）与顶座（2）活动连接，底座（1）通过第四连接轴（64）与尾座（3）铰接，尾座（3）通过第五连接轴（65）与顶座（2）铰接，第一连接轴（61）和第五连接轴（65）之间设有弹性复位件（4），还包括摆动设置在底座（1）内的锁板（52），第四连接轴（64）贯穿锁板（52），锁板（52）上贯穿有第三连接轴（63），第三连接轴（63）的两端与尾座（3）的两个第二连接部连接，第三连接轴（63）贯穿底座（1）并且与其滑动连接。
Description
本发明涉及家居领域，尤其涉及一种椅子及其托盘。
椅子已经是人们在日常生活中的必备家居，而现在无论是普通的家用椅、电竞椅还是一些具有其他用途的椅子都具备有升降和调节靠背的功能，出去一些外附件如靠垫、坐垫及气杆等材料，椅子的托盘作为重要的连接及控制组件就格外的重要，他的安全性、稳定性等会直接影响椅子整体的使用。
中国专利202010885721.0中介绍了一种椅子及其自载重托盘，其中记载了：包括一与椅座支撑杆固定连接的固定座、一与椅座固定连接的第一基座和一与椅背固定连接的第二基座，所述固定座上还设有两个第一弹簧组件、一锁板、一第一连接轴和一第二连接轴，所述第一连接轴位于第二连接轴的前方，所述第二基座的一端与第一基座铰接，第二基座的另一端与固定座铰接，第一基座通过第一连接轴与固定座活动连接，所述第二连接轴固定安装在固定座上，所述锁板的前端可转动的安装在第一连接轴上，所述锁板的后端与第二连接轴活动连接，所述两个第一弹簧组件分别位于锁板的两方，所述第一弹簧组件的前端与第一连接轴活动连接，所述第一弹簧组件的后端与第二连接轴活动连接，还设有倾仰锁定组件，包括倾仰拉线以及安装在固定座上的如图所示的第一安装座和锁舌安装座，以及可左右移动的安装在第一安装座上的第二弹簧组件和可左右移动的安装在锁舌安装座上的锁舌组件，所述锁板上设有若干锁定部，通过拉紧以及放松倾仰拉线可使得所述第二弹簧组件在第一安装座上左右移动，进而带动锁舌组件在锁舌安装座上左右移动进而与锁定部配合以限制锁板转动；若干锁定部至少包括间隔分布的第一锁定长孔和第二锁定长孔，所述第一锁定长孔位于第二锁定长孔的后方，第一锁定长孔的两端和第二锁定长孔的两端均指向上下方向。上述方案中，在托盘的锁板结构和复位结构相互连接，使得用于锁止的结构占用较多的托盘空间；同时从锁定部为长孔形式及两个长孔之间的布置使得通过锁舌件锁定时，托盘的锁定效果不稳定。
为了解决上述问题，本发明的目的在于提供一种结构更加紧凑，锁止更加稳定的椅子及其托盘。
为了实现上述的目的，本发明采用了以下的技术方案：一种托盘，包括用于安装椅脚的底座、用于安装椅座的顶座和用于安装椅背的尾座，所述顶座上设有向下延伸的第一连接部，所述尾座包括向前延伸的第二连接部，所述底座通过第一连接轴与所述顶座的第一连接部活动连接，所述底座通过第四连接轴与所述尾座的第二连接部铰接，所述尾座通过第五连接轴与所述顶座的第一连接部铰接，所述第一连接轴位于所述第五连接轴后方，第四连接轴位于所述第一连接轴位于所述第五连接轴之间，第四连接轴位于所述第一连接轴位于所述第五连接轴下方，所述第一连接轴和所述第五连接轴之间设有弹性复位件。
作为优选，所述第一连接部有两个，所述第二连接部有两个，所述底座位于两个第二连接部之间，两个第二连接部位于两个第一连接部之间。
作为优选，还包括摆动设置在所述底座内的锁板，所述第四连接轴贯穿所述锁板，所述锁板上贯穿有第三连接轴，所述第三连接轴的两端与尾座的两个第二连接部连接，实现锁板和尾座同步动作，所述第三连接轴贯穿所述底座并且与其滑动连接。
作为优选，所述第四连接轴和所述第三连接轴位于所述第一连接轴和第五连接轴之间，第三连接轴位于所述第一连接轴位于所述第五连接轴下方，所述第三连接轴位于所述第四连接轴前方。
作为优选，还包括位于第三连接轴的下方的倾仰锁定组件，包括倾仰拉线以及安装底座上的第一安装座和锁舌安装座，第一安装座上安装有可左右移动的弹簧组件，锁舌安装座上安装有可左右移动的锁舌组件，所述锁板上开设有若干锁定部，通过拉紧或放松倾仰拉线可使得所述弹簧组件在第一安装座上左右移动，进而带动锁舌件在锁舌安装座上左右移动，进而与若干锁定部配合限制锁板摆动，进而通过第三连接轴控制尾座的倾仰角，所述锁定部为锁止孔，所述锁舌件为锁止销，所述锁止孔和所述锁止销插拔连接。
作为优选，还包括升降锁定组件，包括升降拉线以及铰接在底座内的压板，所述压板与升降拉线活动连接；所述第四连接轴上套设有拉线转向套，所述升降拉线由所述压板起始经过所述拉线转向套的下方向前延伸。
作为优选，所述顶座前端固定连接有顶简易罩，所述底座前端铰接有底简易罩，所述顶简易罩将底简易罩罩住并且活动连接，所述顶简易罩将底简易罩活动连接。
作为优选，所述顶简易罩凸起有第二连接轴，所述底简易罩上开设有第二滑移孔，第二连接轴位于第二滑移孔内。
作为优选，弹性复位件包括压簧和可伸缩的导向件，导向件的两端分别转动安装在第一连接轴和第五连接轴上，所述压簧位于第一连接轴和第五连接轴之间并且套设在导向件上。
一种椅子，包括如上所述的一种托盘。
本发明的技术方案中，尾座和底座的滑动连接的位置位于后方，可以根据实际使用场景，灵活的改变第一连接轴和第五连接轴的间距，使得托盘更加紧凑；锁板直接连接在滑动设置在底座内，锁板与尾座通过第三连接轴和第四连接轴实现同步动作，使得托盘处于锁定状态时，更加稳定，有效；用于锁定的锁板和倾仰组件全部位于第一连接轴和第五连接轴的下方，使得锁板可以小范围的摆动完成锁定动作，进而进一步紧凑托盘结构，使得锁定效果更加精确稳定；锁板呈扇形，用于锁止的锁止孔靠近锁板弧形边缘，如此设置可减小锁板的体积；锁板位于第三连接轴下方，从而使与其配合的倾仰锁止组件缩小，使得托盘的结构更加紧凑。
图1为本发明椅子的结构示意图；
图2为本发明椅子结构的爆炸图；
图3为本发明底座、尾座和顶座的连接结构示意图一；
图4为本发明底座、尾座和顶座的连接结构示意图二；
图5为本发明倾仰锁定组件和升降锁定组件的结构示意图一；
图6为本发明倾仰锁定组件和升降锁定组件的结构示意图二；
图7为本发明倾仰锁定组件和升降锁定组件的结构示意图三。
附图标记：1、底座；11、第一滑移孔；12、底简易罩；13、第二滑移孔；2、顶座；21、第一连接部；22、第三滑移孔；23、顶简易罩；3、尾座；31、第二连接部；32、尾板；4、弹性复位组件；41、压簧；42、导向件；5、倾仰锁定组件；51、第一安装座；52、锁板；53、锁舌件；54、第二阻挡部；55、连接件；56、锁舌安装座；57、第二安装座；58、压板；59、开关扭簧；61、第一连接轴；62、第二连接轴；63、第三连接轴；64、第四连接轴；65、第五连接轴；71、倾仰拉线；72、升降拉线；73、锁定部；74、锁止弹簧；75、拉线转向套；76、第一阻挡部。
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，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发明的限制。
此外，术语“第一”、“第二”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。在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上，除非另有明确的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”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。
在本发明中，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。
本具体实施方式中各部件的参考方位，将椅子在正常安装使用时，椅子的前方为前端、前部，而办公椅的后方包括椅背所在的位置为后端、后部。
如图1-4所展示的一种托盘，包括用于连接椅脚的底座1、用于安装椅座的顶座2和用于安装椅背的尾座3；所述底座1与所述顶座2活动连接，所述底座1和所述尾座3铰接，所述顶座2和所述尾座3铰接，还包括摆动设置在所述底座1上的锁板52，通过控制锁板52的摆动角度，实现尾板3摆动角度的锁定。
本实施例中，所述顶座2一体成型有两个向下延伸的第一连接部21，所述尾座3包括两个第二连接部31，两个第二连接部31之间固设有尾板32，所述底座1位于两个第二连接部31之间，底座1位于尾板32前方，两个第二连接部31位于两个第一连接部21之间，所述底座1通过第一连接轴61与所述顶座2的两个第一连接部21活动连接，所述底座1通过第四连接轴64与所述尾座3的两个第二连接部31铰接，所述尾座3通过第五连接轴65与所述顶座2的第一连接部21铰接，所述第四连接轴64贯穿所述锁板52，所述锁板52和两个第二连接部31通过第三连接轴63铰接，所述第四连接轴64和所述第三连接轴63位于所述第一连接轴61和第五连接轴65之间，所述第一连接轴61和第五连接轴65之间设有弹性复位件4，所述第三连接轴63和第四连接轴64位于所述第一连接轴61和第五连接轴65下方。
如此设置，当人体向后倾倒对椅背发力，使得椅背带动尾座3围绕第四连接轴64转动，尾座3的两个第二连接部31的前端上扬并且向后移动，第四连接轴64带动顶座2向上并且向后运动，所述顶座2的两个第一连接部21与第一连接轴61发生相对滑动，弹性复位组件4受压产生反作用与第五连接轴65的力，弹性复位组件4所产生的反作用力可以使得人体在倾倒的过程更加平滑，避免出现椅背迅速且直接运动至倾倒角度。
本实施例中，顶座2两个第一连接部21上均设有第三滑移孔22，所述第一连接轴61的两端分为通过两个第三滑移孔22，所述第一连接轴61与两个第三滑移孔22滑动配合；所述第一连接轴61上套设有两个滑动轴套，所述底座1位于两个滑动轴套之间，所述滑动轴套位于所述第三滑移孔22内并且滑动配合。
本实施例中，第五连接轴65位于所述底座1的前方，第一连接轴61位于所述底座1的后方部段并且位于所述尾座3的两个第二连接部31的上方，所述第四连接轴64和所述第三连接轴63位于第一连接轴61和第五连接轴65之间。
进一步优选地，第三连接轴63位于所述第四连接轴64的前方。所述底座1的左右两侧均开设有倾斜的第一滑移孔11，所述第一滑移孔11位于所述第四连接轴64前方，所述第三连接轴63通过底座1上两个第一滑移孔11，第一滑移孔11与第三连接轴63滑动配合；如此设置，当尾座3转动至一定角度后，第三连接轴63与连个第一滑移孔11发生抵触，尾座3将不再动作，如此可避免倾仰角度过大导致的侧翻的风险，同时避免应倾仰角度过大导致托盘中其余组件相互挤压，从而产生实效。
进一步优选的，所述第三连接轴63滑移行程的最低点高于所述第四连接轴64的最低点。
如此设置，尾座3是围绕第四连接轴64转动，因此尾座3发生倾倒时的起始动作为：尾座3带动第三连接接轴63向上并且向后运动，从而避免繁杂的运动路径，提升托盘的稳定性。
本实施例中，还包括顶简易罩23和底简易罩12，顶简易罩23固定在顶座2的底部的前侧部段上，所述底简易罩12铰接在底座1的前端，所述顶简易罩23与所述底简易罩12滑动配合；所述第五连接轴65位于所述顶简易罩23内侧。
进一步优选的，所述顶简易罩23呈弧形且左右两侧向后弯折将所述底简易罩12顶部段罩住，顶简易罩23左右两侧均向内侧凸起有第二连接轴62，所述底简易罩12的左右两侧均设有倾斜的第二滑移孔13，所述第二连接轴62延伸至第二滑移孔13内并且与其活动配合；如此设置，通过顶简易罩23将尾座3的两个第二连接部31的前端遮挡；当顶座1向上移动时带动顶简易罩23移动时，顶简易罩23带动第二连接轴62在第二滑移孔13内滑动，实现展开的视觉效果。
本实施例中，所述弹性复位组件4如图1和图2所示，包括压簧41和可伸缩的导向件42，所述导向件42的两端分别活动连接在第一连接轴61和第五连接轴65上，所述压簧41套设在导向件42上。
进一步优选，所述导向件42一端固定复位套筒，所述复位套筒套设在第五连接轴65上，所述导向件42的另一端固定有限位块，所述限位块上开设有弧形槽，所述限位块通过弧形槽顶压所述第一连接轴61，所述压簧41的两端分别顶压复位套筒和限位块，导向件4为插拔连接的导柱和导套。
本实施例中，托盘还包括如图5-7中所示的用于控制尾座3倾仰角度的倾仰锁定组件5，所述倾仰锁定组件5位于锁板52和第三连接轴63的下方，所述倾仰锁定组件5包括倾仰拉线71以及安装在底座1内的第一安装座51和锁舌安装座56，所述锁舌安装座56上安装有可左右移动的锁舌组件，第一安装座51上安装有可左右移动的弹簧组件，所述锁板52上开设有若干锁定部73，通过拉紧或放松倾仰拉线71可使得所述弹簧组件在第一安装座51上左右移动，进而带动锁舌组件在锁舌安装座56上左右移动，进而与若干锁定部73配合限制锁板52摆动，进而通过第三连接轴63控制尾座3的倾仰角度。如此设置，当倾仰锁定组件5处于锁定状态时，锁板52、底座1、顶座2和尾座3形成稳固的四连杆机构，区别与传统托盘的三连杆机构，四连杆机构的运行更为顺滑。
进一步优选的，第一安装座51位于第三连接轴63的下方，锁舌安装座56位于第一安装座51前方；如此设置合理的利用了底座1内的空间，使得托板中的各零部件高度集中化，有效减少了托盘的占用体积。
本实施例中，所述弹簧组件包括滑动设置在第一安装座51上的滑动杆，所述滑动杆贯穿所述第一安装座51，所述滑动杆的两端分别设有第一阻挡部76和第二阻挡部54，所述第一安装座位于所述第一阻挡部76和第二阻挡部54之间，所述弹簧组件还包括锁止弹簧74，所述锁止弹簧74套设在滑动杆上，所述锁止弹簧74位于第二阻挡部54和第一安装座51之间；所述锁舌组件包括锁舌件53和连接件55，所述锁舌件53贯穿所述锁舌固定座56并且与其滑动配合，所述连接件55一端固定在锁舌件53的一侧，所述连接件55的另一端固定在第一阻挡部76上，所述第一阻挡部76和倾仰拉线71活动配合。
进一步优选的，连接件55为弹性件，第二阻挡部54为与所述滑移杆另一端螺纹配合的螺钉，锁止销与锁止孔插拔连接设置。如此设置是因为连接件55的移动可带动锁舌件53移动，但当锁舌件53未与锁定部73对齐时，两者间的运动同步性是比较差的，具体来说，当第一阻挡部76返回至初始位置时，锁舌件53是处于与锁板4相抵的状态，因此两者间需要通过连接件55相连以弥补运动过程中的位置差，同时在锁板4的转动过程中，使得锁舌件53与锁定部73对齐，进而在连接件55的作用下，锁舌件53与锁定部73配合完成对锁板4的锁定，如上所述，连接件55应为弹性件；在本实施例中，连接件55为扭簧。本实施例中，锁舌件53为锁止销，所述锁板52呈扇形，所述锁定部73为锁止孔，若干锁止孔靠近锁板52弧形边缘一端，所述锁止销和所述锁止孔插拔连接。
进一步优选，第一阻挡部76上设有一仅供倾仰拉线71穿过的第一通道，倾仰拉线71一端上固定有第三阻挡部；当倾仰拉线71穿过第一通道后，第三阻挡部与第一阻挡部76抵触，从而阻止倾仰拉线71通过第一阻挡部76；进一步优选，所述第三阻挡部为球体、圆柱体或其他形状。
本实施例中，还设有升降锁定组件，升降锁定组件位于倾仰锁定组件5的后方，包括升降拉线72以及安装在底座1内的第二安装座57，所述第二安装座57上向下凹陷有用于安装升降气杆的气杆固定孔，所述气杆固定孔向下延伸贯穿所述底座1，所述第二安装座57的顶部凸起有两个支座，所述支座之间铰接有开关轴，所述开关轴上安装有压板58，所述支座与所述压板58之间设置有用于压板58复位的开关扭簧59，所述压板58一端安装在所述开关轴上，所述压板58的另一端与升降拉线72活动连接；如此设置，拉动所述升降拉线72带动所述压板58的一端下移，所述压板58下压所述气杆的开关并且下压所述开关扭簧59使其蓄力，松开所述升降拉线72，所述开关扭簧59释放带动所述压板58和升降拉线72复位，气杆开关自行复位。
进一步优选的，所述压板58上开设有仅能通过升降拉线72的第二通道，升降拉线72一端固定有第四阻挡部，当升降拉线72穿过第二通道时，第四阻挡部与压板58抵触，从而阻止升降拉线72继续通过压板58。进一步优选，所述第三阻挡部为球体、圆柱体或其他形状。
进一步优选的，所述第四连接轴64上套设有拉线转向套75，所述升降拉线72由所述压板58起始经过所述拉线转向套75的下方向前延伸，所述升降拉线72向前延伸通过所述底座1和底简易罩12；本方案中压板58运动行程的最低端高于拉线转向套75的最低端。如此设置，方便用户对托盘升降控制，通过拉线转向套75，使得升降拉线72平滑的，避免升降拉线72在转向处小角度弯折影响托盘的使用寿命。
一种椅子，包括如上所述的托盘。还包括安装在底座1的支撑脚，安装在尾座3上的椅背和安装在顶座3上的椅座。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本实用新型的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管上面已经示出和描述了本实用新型的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本实用新型的限制，本领域的普通技术人员在不脱离本实用新型的原理和宗旨的情况下在本实用新型的范围内可以对上述实施例进行变化、修改、替换和变型。
Claims (10)
- 一种托盘，其特征在于：包括用于安装椅脚的底座（1）、用于安装椅座的顶座（2）和用于安装椅背的尾座（3），所述顶座（2）上设有向下延伸的第一连接部（21），所述尾座（3）包括向前延伸的第二连接部（31）所述底座（1）通过第一连接轴（61）与所述顶座（2）的第一连接部（21）活动连接，所述底座（1）通过第四连接轴（64）与所述尾座（3）的第二连接部（31）铰接，所述尾座（3）通过第五连接轴（65）与所述顶座（2）的第一连接部（21）铰接，所述第一连接轴（61）位于所述第五连接轴（65）后方，第四连接轴（64）位于所述第一连接轴（61）位于所述第五连接轴（65）之间，第四连接轴（64）和所述第一连接轴（61）和所述第五连接轴（65）下方，所述第一连接轴（61）和所述第五连接轴（65）之间设有弹性复位件（4）。
- 根据权利要求1所述的一种托盘，其特征在于：所述第一连接部（21）有两个，所述第二连接部（31）有两个，所述底座（1）位于两个第二连接部（31）之间，两个第二连接部（31）位于两个第一连接部（21）之间。
- 根据权利要求2所述的一种托盘，其特征在于：还包括摆动设置在所述底座（1）内的锁板（52），所述第四连接轴（64）贯穿所述锁板（52），所述锁板（52）上贯穿有第三连接轴（63），所述第三连接轴（63）的两端与尾座（3）的两个第二连接部（31）连接，实现锁板（52）和尾座（3）同步动作，所述第三连接轴（63）贯穿所述底座（1）并且与其滑动连接，第三连接轴（63）位于所述第一连接轴（61）和所述第五连接轴（65）下方。
- 根据权利要求3所述的一种托盘，其特征在于：所述第四连接轴（64）和所述第三连接轴（63）位于所述第一连接轴（61）和第五连接轴（65）之间，所述第三连接轴（63）位于所述第四连接轴（64）前方。
- 根据权利要求3所述的一种托盘，其特征在于：还包括位于第三连接轴（63）的下方的倾仰锁定组件（5），包括倾仰拉线（71）以及安装底座（1）上的第一安装座（51）和锁舌安装座（56），第一安装座（51）上安装有可左右移动的弹簧组件，锁舌安装座（56）上安装有可左右移动的锁舌组件，所述锁板上开设有若干锁定部（73），通过拉紧或放松倾仰拉线可使得所述弹簧组件在第一安装座上左右移动，进而带动锁舌件（53）在锁舌安装座（56）上左右移动，进而与若干锁定部配合限制锁板（52）摆动，进而通过第三连接轴（63）控制尾座（3）的倾仰角，锁定部（73）为锁止孔，所述锁舌件（53）为锁止销，所述锁止孔和所述锁止销插拔连接。
- 根据权利要求3所述的一种托盘，其特征在于：还包括升降锁定组件，包括升降拉线（72）以及铰接在底座（1）内的压板，所述压板（58）与升降拉线（72）活动连接；所述第四连接轴（64）上套设有拉线转向套（75），所述升降拉线（72）由所述压板（58）起始经过所述拉线转向套（75）的下方向前延伸。
- 根据权利要求1所述的一种托盘，其特征在于：所述顶座（2）前端固定连接有顶简易罩（23），所述底座（1）前端铰接有底简易罩（12），所述顶简易罩（23）将底简易罩（12）罩住并且活动连接，所述顶简易罩（23）将底简易罩（12）活动连接。
- 根据权利要求7所述的一种托盘，其特征在于：所述顶简易罩（23）凸起有第二连接轴（62），所述底简易罩（12）上开设有第二滑移孔（13），第二连接轴（62）位于第二滑移孔（13）内。
- 根据权利要求1所述的一种托盘，其特征在于：弹性复位件（4）包括压簧（41）和可伸缩的导向件（42），导向件的两端分别转动安装在第一连接轴（61）和第五连接轴（65）上，所述压簧（41）位于第一连接轴（61）和第五连接轴（65）之间并且套设在导向件（42）上。
- 一种椅子，其特征在于：包括如上权利要求1至9中任意一项所述的一种托盘。
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| WO2008110669A1 (fr) * | 2007-03-08 | 2008-09-18 | Steelcase Sa | Mecanisme de reglage synchronise de la tension de basculement d'un siege |
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| CN209018137U (zh) * | 2017-11-30 | 2019-06-25 | 陈涛 | 一种线控座椅底盘 |
| CN110051154A (zh) * | 2018-04-04 | 2019-07-26 | 永艺家具股份有限公司 | 用于椅具的背座同步联动装置及椅具 |
| CN112056840A (zh) * | 2020-08-28 | 2020-12-11 | 恒林家居股份有限公司 | 一种椅子及其自载重托盘 |
| CN212280602U (zh) * | 2020-07-15 | 2021-01-05 | 中山市继文家具有限公司 | 带有座背同步联动装置的底盘结构 |
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| WO2008110669A1 (fr) * | 2007-03-08 | 2008-09-18 | Steelcase Sa | Mecanisme de reglage synchronise de la tension de basculement d'un siege |
| KR20170001938A (ko) * | 2015-06-26 | 2017-01-05 | 한국생산기술연구원 | 체중에 맞추어 시트의 상승 동작과 등받이의 틸팅동작이 동기화되는 의자 |
| CN209018137U (zh) * | 2017-11-30 | 2019-06-25 | 陈涛 | 一种线控座椅底盘 |
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| CN212280602U (zh) * | 2020-07-15 | 2021-01-05 | 中山市继文家具有限公司 | 带有座背同步联动装置的底盘结构 |
| CN112056840A (zh) * | 2020-08-28 | 2020-12-11 | 恒林家居股份有限公司 | 一种椅子及其自载重托盘 |
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