TWM605664U

TWM605664U - Chair and backrest angle adjusting device thereof

Info

Publication number: TWM605664U
Application number: TW109210668U
Authority: TW
Inventors: 陳國宏; 胡永明
Original assignee: 亞梭傢俬國際股份有限公司; 允良機械股份有限公司
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2020-12-21

Abstract

一種座椅，包含一基架、一背靠及一背靠角度調整裝置。該背靠角度調整裝置包含一支撐架、一第一樞接組及一第二樞接組。該支撐架包括一下架體及一上架體。該第一樞接組設置於該基架與該下架體之間並界定出一第一軸線，該支撐架能繞該第一軸線相對於該基架旋轉。該第二樞接組設置於該背靠與該上架體之間並界定出一第二軸線，該背靠能繞該第二軸線相對於該上架體在一初始角度位置及一後仰角度位置之間旋轉，且該背靠還能透過該支撐架及該第二樞接組繞該第一軸線旋轉。藉此，該背靠能提供乘坐者良好的支撐性及舒適性。A seat includes a base frame, a backrest and a backrest angle adjustment device. The backrest angle adjusting device includes a support frame, a first pivoting group and a second pivoting group. The support frame includes a lower frame body and an upper frame body. The first pivotal set is arranged between the base frame and the lower frame body and defines a first axis, and the support frame can rotate relative to the base frame around the first axis. The second pivotal group is disposed between the backrest and the upper frame body and defines a second axis, the backrest can be relative to the upper frame body around the second axis at an initial angular position and a reclining angle position And the backrest can rotate around the first axis through the support frame and the second pivotal assembly. In this way, the backrest can provide good support and comfort for the occupants.

Description

座椅及其背靠角度調整裝置Seat and its backrest angle adjusting device

本新型是有關於一種座椅及其背靠角度調整裝置，特別是指一種背靠能繞兩個軸線旋轉的座椅及其背靠角度調整裝置。The invention relates to a seat and its backrest angle adjustment device, in particular to a seat and its backrest angle adjustment device whose backrest can rotate around two axes.

現有座椅的一背靠角度調整裝置通常是設置在一基架後部與一背靠底部之間，藉此，使得該背靠能夠旋轉以調整傾仰角度。由於該背靠只能透過該背靠角度調整裝置繞單一軸線旋轉，因此，當乘坐者的一背部向後仰並施力推動該背靠旋轉時，位於該背部底端的一腰部易因向前***而與該背靠分離，從而導致該背靠無法完整地服貼於乘作者的該腰部甚至是該背部，故該背靠所能提供的支撐性及舒適性皆不佳。A backrest angle adjustment device of an existing seat is usually arranged between a rear part of a base frame and a backrest bottom, so that the backrest can be rotated to adjust the tilt angle. Since the backrest can only be rotated around a single axis through the backrest angle adjustment device, when a occupant’s back is leaned back and the backrest is forced to rotate, a waist at the bottom end of the back is liable to bulge forward. The separation from the backrest results in that the backrest cannot completely fit the waist or even the back of the rider, so the support and comfort that the backrest can provide are not good.

因此，本新型之其中一目的，即在提供一種能夠克服先前技術的至少一個缺點的座椅。Therefore, one of the objectives of the present invention is to provide a seat that can overcome at least one of the disadvantages of the prior art.

於是，本新型座椅在一些實施態樣中，是包含一基架、一背靠，及一背靠角度調整裝置。Therefore, in some embodiments, the seat of the present invention includes a base frame, a backrest, and a backrest angle adjustment device.

該背靠角度調整裝置包含一支撐架、一第一樞接組，及一第二樞接組。該支撐架包括一下架體，及一上架體。該第一樞接組設置於該基架與該下架體之間並界定出一第一軸線，該支撐架能繞該第一軸線相對於該基架旋轉。該第二樞接組設置於該背靠與該上架體之間並界定出一位於該第一軸線上方並且平行於該第一軸線的第二軸線，該背靠能繞該第二軸線相對於該上架體在一初始角度位置及一後仰角度位置之間旋轉，且該背靠還能透過該支撐架及該第二樞接組繞該第一軸線旋轉。The backrest angle adjustment device includes a support frame, a first pivoting group, and a second pivoting group. The supporting frame includes a lower frame body and an upper frame body. The first pivotal set is arranged between the base frame and the lower frame body and defines a first axis, and the support frame can rotate relative to the base frame around the first axis. The second pivot group is disposed between the backrest and the upper frame body and defines a second axis located above the first axis and parallel to the first axis, and the backrest can be opposed to each other around the second axis The upper frame body rotates between an initial angle position and a backward angle position, and the backrest can also rotate around the first axis through the support frame and the second pivot assembly.

在一些實施態樣中，該上架體包含至少一支臂，該支臂具有兩個相間隔的前樞接板，該背靠包含至少一位於該等前樞接板之間的後樞接板，該第二樞接組包括至少一界定出該第二軸線的樞軸，該樞軸樞接該等前樞接板與該後樞接板。In some embodiments, the upper frame body includes at least one arm, the support arm has two spaced apart front pivoting plates, and the backrest includes at least one rear pivoting plate located between the front pivoting plates The second pivoting set includes at least one pivot that defines the second axis, and the pivot pivotally connects the front pivoting plates and the rear pivoting plates.

在一些實施態樣中，該上架體包含一下擋止塊，及一位於該下擋止塊上方的上擋止塊，該下擋止塊用以擋止該背靠以將其限位在該初始角度位置，該上擋止塊用以擋止該背靠以將其限位在該後仰角度位置。In some embodiments, the upper frame body includes a lower stopper and an upper stopper located above the lower stopper, and the lower stopper is used to stop the backrest so as to limit it to the In the initial angle position, the upper stop block is used to stop the backrest to limit it at the backward angle position.

在一些實施態樣中，該背靠角度調整裝置還包含一設置於該上架體與該背靠之間的彈簧，該彈簧用以對該背靠朝該初始角度位置方向偏壓。In some embodiments, the backrest angle adjusting device further includes a spring disposed between the upper frame and the backrest, and the spring is used to bias the backrest toward the initial angular position.

在一些實施態樣中，該上架體包含兩個支臂，該背靠包含兩個後樞接板，該第二樞接組包括兩個共同界定出該第二軸線的樞軸，各該樞軸樞接對應的該支臂的該等前樞接板與對應的該後樞接板。In some embodiments, the upper frame body includes two support arms, the backrest includes two rear pivot plates, the second pivot group includes two pivots that collectively define the second axis, and each pivot The shaft is pivotally connected to the corresponding front pivoting plates of the arm and the corresponding rear pivoting plates.

在一些實施態樣中，各該支臂具有一下擋止塊，及一位於該下擋止塊上方的上擋止塊，該下擋止塊用以擋止對應的該後樞接板底端以將該背靠限位在該初始角度位置，該上擋止塊用以擋止對應的該後樞接板頂端以將該背靠限位在該後仰角度位置。In some embodiments, each of the supporting arms has a lower stopper and an upper stopper located above the lower stopper, and the lower stopper is used to stop the bottom end of the corresponding rear pivot plate In order to limit the backrest at the initial angular position, the upper stop block is used to stop the top end of the corresponding rear pivot plate to limit the backrest at the backward angle position.

在一些實施態樣中，該背靠角度調整裝置還包含兩個彈簧，各該彈簧設置於對應的該支臂與對應的該後樞接板之間，用以對對應的該後樞接板朝對應的該下擋止塊方向偏壓。In some embodiments, the backrest angle adjustment device further includes two springs, and each spring is disposed between the corresponding arm and the corresponding rear pivoting plate for matching the corresponding rear pivoting plate Bias in the direction of the corresponding lower stop.

在一些實施態樣中，該等支臂由該下架體頂部朝上並朝相互遠離的方向傾斜延伸。In some embodiments, the arms extend upward from the top of the lower frame and extend in directions away from each other.

在一些實施態樣中，該背靠還包含一背框，及一網布，該背框為一封閉連續構造並界定出一通孔，該等後樞接板凸設於該背框後端且左右相間隔，該網布設置於該背框前端且遮蔽於該通孔前端。In some embodiments, the backrest further includes a back frame and a mesh, the back frame is a closed continuous structure and defines a through hole, and the rear pivot plates are protruding from the rear end of the back frame and Left and right spaced apart, the mesh cloth is arranged at the front end of the back frame and shielded at the front end of the through hole.

本新型之其中一目的，即在提供一種能夠克服先前技術的至少一個缺點的座椅的背靠角度調整裝置。One of the objectives of the present invention is to provide a seat backrest angle adjustment device that can overcome at least one of the disadvantages of the prior art.

於是，本新型座椅的背靠角度調整裝置在一些實施態樣中，適於設置在一基架與一背靠之間，該背靠角度調整裝置包含一支撐架、一第一樞接組，及一第二樞接組。Therefore, in some embodiments, the backrest angle adjustment device of the seat of the present invention is suitable for being arranged between a base frame and a backrest. The backrest angle adjustment device includes a support frame and a first pivoting assembly. , And a second pivot group.

該支撐架包括一下架體，及一上架體。該第一樞接組設置於該基架與該下架體之間並界定出一第一軸線，該支撐架能繞該第一軸線相對於該基架旋轉。該第二樞接組設置於該背靠與該上架體之間並界定出一位於該第一軸線上方並且平行於該第一軸線的第二軸線，該背靠能繞該第二軸線相對於該上架體在一初始角度位置及一後仰角度位置之間旋轉。The supporting frame includes a lower frame body and an upper frame body. The first pivotal set is arranged between the base frame and the lower frame body and defines a first axis, and the support frame can rotate relative to the base frame around the first axis. The second pivot group is disposed between the backrest and the upper frame body and defines a second axis located above the first axis and parallel to the first axis, and the backrest can be opposed to each other around the second axis The upper frame rotates between an initial angle position and a backward angle position.

在一些實施態樣中，還包含一設置於該上架體與該背靠之間的彈簧，該彈簧用以對該背靠朝該初始角度位置方向偏壓。In some embodiments, it further includes a spring disposed between the upper frame and the backrest, and the spring is used to bias the backrest toward the initial angular position.

在一些實施態樣中，還包含兩個彈簧，各該彈簧設置於對應的該支臂與對應的該後樞接板之間，用以對對應的該後樞接板朝對應的該下擋止塊方向偏壓。In some embodiments, it further includes two springs, each of which is disposed between the corresponding arm and the corresponding rear pivoting plate, for facing the corresponding rear pivoting plate toward the corresponding lower stop The direction of the stop block is biased.

本新型至少具有以下功效：藉由該背靠能繞該第二軸線相對於該支撐架的該上架體在該初始角度位置及該後仰角度位置之間旋轉，使得乘坐者的該背部在施力推動該背靠而造成該腰部向前***時，該背靠仍能保持完整地服貼於該背部及該腰部的狀態，以提供該背部及該腰部良好的支撐性及舒適性。The present invention has at least the following effects: the backrest can rotate around the second axis relative to the upper frame of the support frame between the initial angular position and the reclining angular position, so that the back of the occupant is performing When the backrest is forced to cause the waist to bulge forward, the backrest can still maintain a state of being completely attached to the back and the waist, so as to provide good support and comfort for the back and the waist.

在本新型被詳細描述之前，應當注意在以下的說明內容中，類似的元件是以相同的編號來表示。Before the present invention is described in detail, it should be noted that in the following description, similar elements are represented by the same numbers.

參閱圖1，本新型座椅100的一實施例，包括一椅墊1、一基架2、一背靠3，及一背靠角度調整裝置4。Referring to FIG. 1, an embodiment of the seat 100 of the present invention includes a seat cushion 1, a base frame 2, a backrest 3, and a backrest angle adjustment device 4.

參閱圖1、圖2及圖3，該基架2設置於該椅墊1底部並包含一頂板21、兩個分別由該頂板21左右側朝下延伸的側板22，及一設置於對應的該側板22內側的框板23。該背靠3包含一背框31、一網布32，及兩個後樞接板33。該背框31為一呈框形的封閉連續構造並界定出一通孔311。該網布32為一具有良好彈性及透氣性的網布，其設置於該背框31前端並遮蔽於該通孔311前端，該網布32用以供一乘坐者(圖未示)的一背部及一腰部貼靠。藉由該背框31呈框形且該網布32設置於該背框31前端並遮蔽於該通孔311前端的方式，使得該網布32能透過該通孔311達到良好的透氣散熱效果，以提升供該背部及該腰部貼靠時的舒適感。該等後樞接板33凸設於該背框31後端且左右相間隔。Referring to Figures 1, 2 and 3, the base frame 2 is arranged at the bottom of the cushion 1 and includes a top plate 21, two side plates 22 extending downward from the left and right sides of the top plate 21, and a corresponding The frame plate 23 inside the side plate 22. The backrest 3 includes a back frame 31, a mesh cloth 32, and two rear pivot plates 33. The back frame 31 is a closed continuous structure in a frame shape and defines a through hole 311. The net cloth 32 is a net cloth with good elasticity and air permeability, which is arranged at the front end of the back frame 31 and shielded at the front end of the through hole 311. The net cloth 32 is used for a passenger (not shown) Close to the back and waist. By the way that the back frame 31 is frame-shaped and the net cloth 32 is arranged at the front end of the back frame 31 and shielded at the front end of the through hole 311, the net cloth 32 can achieve a good ventilation and heat dissipation effect through the through hole 311. In order to improve the comfort when the back and the waist are attached. The rear pivot plates 33 are protruded from the rear end of the back frame 31 and are spaced apart from each other.

參閱圖3、圖4及圖5，該背靠角度調整裝置4包含一支撐架41、一第一樞接組42、一第二樞接組43、兩個彈簧44、兩個彈簧45，及一鎖定機構46。該支撐架41呈Y型並包括一下架體410，及一上架體411。該下架體410呈朝後凸伸***的弧形狀並具有兩個鄰近底部且左右相間隔的側板412，及一穿設於該等側板412且鄰近其底端的軸桿413。該等側板412分別位於該等側板22外側。該上架體411具有兩個支臂414，該等支臂414由該下架體410頂部朝上並朝相互遠離的方向傾斜延伸，使得各該支臂414呈傾斜狀。3, 4 and 5, the back angle adjustment device 4 includes a support frame 41, a first pivoting group 42, a second pivoting group 43, two springs 44, two springs 45, and A locking mechanism 46. The support frame 41 is Y-shaped and includes a lower frame body 410 and an upper frame body 411. The lower frame body 410 has an arc shape protruding backward and has two side plates 412 adjacent to the bottom and spaced left and right, and a shaft 413 passing through the side plates 412 and adjacent to the bottom end. The side plates 412 are respectively located outside the side plates 22. The upper frame body 411 has two supporting arms 414, and the supporting arms 414 extend upward from the top of the lower frame body 410 and obliquely extending away from each other, so that each of the supporting arms 414 is inclined.

參閱圖2、圖4及圖6，各該支臂414具有一前端面415、兩個前樞接板416、一下擋止塊417，及一上擋止塊418。該等前樞接板416凸設於該前端面415且左右相間隔，該前端面415與該等前樞接板416共同界定出一容置槽419，該容置槽419供對應的該後樞接板33容置。該下擋止塊417凸設於該前端面415且位於該容置槽419下方，用以擋止對應的該後樞接板33底端。該上擋止塊418凸設於該前端面415且位於該下擋止塊417及該容置槽419上方，用以擋止對應的該後樞接板33頂端。Referring to FIGS. 2, 4 and 6, each arm 414 has a front end surface 415, two front pivot plates 416, a lower stop block 417, and an upper stop block 418. The front pivoting plates 416 are protrudingly disposed on the front end surface 415 and are spaced left and right. The front end surface 415 and the front pivoting plates 416 jointly define an accommodating groove 419, and the accommodating groove 419 is for the corresponding rear The pivot plate 33 is accommodated. The lower stop block 417 is protrudingly disposed on the front end surface 415 and located below the receiving groove 419 to stop the corresponding bottom end of the rear pivot plate 33. The upper stop block 418 is protruded from the front end surface 415 and is located above the lower stop block 417 and the accommodating groove 419 to stop the corresponding top end of the rear pivot plate 33.

參閱圖4及圖5，該第一樞接組42包括一樞軸421，該樞軸421穿設並樞接該等側板22及該等側板412，且該樞軸421界定出一第一軸線A1。藉此，使得該支撐架41能繞該第一軸線A1相對於該基架2旋轉。各該彈簧44為一套設於該樞軸421的扭力彈簧，各該彈簧44的兩相反端分別抵接於該頂板21底端及該軸桿413頂端。4 and 5, the first pivot assembly 42 includes a pivot 421, the pivot 421 penetrates and pivotally connects the side plates 22 and the side plates 412, and the pivot 421 defines a first axis A1. Thereby, the support frame 41 can rotate relative to the base frame 2 about the first axis A1. Each of the springs 44 is a torsion spring set on the pivot 421, and two opposite ends of each of the springs 44 abut against the bottom end of the top plate 21 and the top end of the shaft 413, respectively.

參閱圖2、圖4、圖6及圖7，該第二樞接組43包括兩個樞軸431，及兩個扣環432。各該樞軸431穿設並樞接於對應的該支臂414的該等前樞接板416與對應的該後樞接板33。各該扣環432為一卡扣於對應的該樞軸431並且抵接於對應的該前樞接板416外側，以防止該樞軸431脫離該等前樞接板416與該後樞接板33。該等樞軸431共同界定出一第二軸線A2，該第二軸線A2位於該第一軸線A1上方並且平行於該第一軸線A1。藉此，使得該背靠3能繞該第二軸線A2相對於該上架體411在一初始角度位置(如圖4所示)及一後仰角度位置(如圖10所示)之間旋轉。此外，該背靠3還能透過該支撐架41及該第二樞接組43繞該第一軸線A1旋轉。各該彈簧45為一套設於對應的該樞軸431的扭力彈簧，各該彈簧45的兩相反端分別抵接於對應的該前樞接板416及對應的該後樞接板33。Referring to FIGS. 2, 4, 6 and 7, the second pivotal assembly 43 includes two pivots 431 and two buckles 432. Each of the pivots 431 passes through and is pivotally connected to the corresponding front pivoting plates 416 and the corresponding rear pivoting plates 33 of the arm 414. Each of the buckles 432 is a buckle to the corresponding pivot 431 and abuts against the outer side of the corresponding front pivoting plate 416 to prevent the pivot 431 from being separated from the front pivoting plates 416 and the rear pivoting plate 33. The pivots 431 jointly define a second axis A2, which is located above and parallel to the first axis A1. Thereby, the backrest 3 can rotate about the second axis A2 relative to the upper frame body 411 between an initial angular position (as shown in FIG. 4) and a backward angle position (as shown in FIG. 10). In addition, the backrest 3 can also rotate around the first axis A1 through the support frame 41 and the second pivotal assembly 43. Each of the springs 45 is a torsion spring set on the corresponding pivot 431, and two opposite ends of each of the springs 45 abut against the corresponding front pivoting plate 416 and the corresponding rear pivoting plate 33, respectively.

參閱圖5、圖8及圖9，該鎖定機構46包括一墊片461、一螺帽462、一墊圈463、一彈性墊塊464、一活動桿465、多片摩擦片466、多片摩擦墊片467、一操作桿468，及一插銷469。該墊片461用以抵接於該框板23的一內板部231外側。該螺帽462抵接於該墊片461外側。該墊圈463抵接於該內板部231內側。該彈性墊塊464穿設於對應的該側板22並與該墊圈463相間隔。該活動桿465穿設於該彈性墊塊464、該墊圈463、該內板部231及該墊片461並螺接於該螺帽462。各該摩擦片466呈長形並形成有一樞接於該軸桿413的軸孔470，及一供該活動桿465穿設的長形孔471。該等摩擦墊片467套設於該活動桿465上，該等摩擦墊片467其中的一個位於該墊圈463與對應的該摩擦片466之間，該等摩擦墊片467其中的另一個位於該彈性墊塊464與對應的該摩擦片466之間，而其餘的各該摩擦墊片467則位於兩個相鄰的該等摩擦片466之間。該操作桿468的一樞接殼472透過該插銷469能轉動地樞接於該活動桿465，並且用以帶動該活動桿465橫向移動，以進行解鎖及鎖定的操作。5, 8 and 9, the locking mechanism 46 includes a washer 461, a nut 462, a washer 463, an elastic pad 464, a movable rod 465, multiple friction plates 466, and multiple friction pads Piece 467, a lever 468, and a bolt 469. The gasket 461 is used to abut against the outer side of an inner plate portion 231 of the frame plate 23. The nut 462 abuts against the outside of the gasket 461. The gasket 463 abuts against the inner side of the inner plate portion 231. The elastic pad 464 penetrates the corresponding side plate 22 and is spaced from the gasket 463. The movable rod 465 passes through the elastic block 464, the washer 463, the inner plate portion 231 and the washer 461 and is screwed to the nut 462. Each of the friction plates 466 is elongated and formed with a shaft hole 470 pivotally connected to the shaft rod 413 and a long hole 471 for the movable rod 465 to pass through. The friction pads 467 are sleeved on the movable rod 465, one of the friction pads 467 is located between the washer 463 and the corresponding friction plate 466, and the other of the friction pads 467 is located on the Between the elastic pad 464 and the corresponding friction plate 466, the remaining friction pads 467 are located between two adjacent friction plates 466. A pivot housing 472 of the operating rod 468 is pivotally connected to the movable rod 465 through the plug 469 rotatably, and is used to drive the movable rod 465 to move laterally for unlocking and locking operations.

欲進行解鎖操作時，將該操作桿468往下壓使其沿一第一轉動方向S1轉動。該操作桿468轉動過程中會透過該插銷469推動該活動桿465沿一第一移動方向D1橫向移動，該活動桿465移動過程中透過摩擦力帶動該等摩擦片466及該等摩擦墊片467移動，使得各該摩擦片466與兩個相鄰的該等摩擦墊片467鬆開而不會迫緊接觸在一起，以容許各該摩擦片466能夠相對於對應的該等摩擦墊片467以及該活動桿465移動。此時，該鎖定機構46在一解鎖狀態，該支撐架41能沿一第一旋轉方向R1(如圖11所示)繞該第一軸線A1旋轉以調整角度，該支撐架41旋轉過程中會透過該軸桿413推動該等摩擦片466使其相對於該活動桿465向上移動。When an unlocking operation is to be performed, the operating rod 468 is pressed downward to rotate in a first rotation direction S1. During the rotation of the operating rod 468, the movable rod 465 is pushed to move laterally along a first moving direction D1 through the bolt 469. The movable rod 465 drives the friction plates 466 and the friction pads 467 through friction during the movement. Move, so that each of the friction plates 466 and two adjacent friction pads 467 are loosened without being tightly contacted together, so as to allow each of the friction plates 466 to be able to correspond to the corresponding friction pads 467 and The movable rod 465 moves. At this time, the locking mechanism 46 is in an unlocked state, and the support frame 41 can rotate about the first axis A1 in a first rotation direction R1 (as shown in FIG. 11) to adjust the angle. The friction plates 466 are pushed through the shaft 413 to move upward relative to the movable rod 465.

當該支撐架41調整到所需的角度後，將該操作桿468往上扳動使其沿一相反於該第一轉動方向S1的第二轉動方向S2轉動。該操作桿468轉動過程中會透過該插銷469拉動該活動桿465沿一相反於該第一移動方向D1的第二移動方向D2橫向移動。該活動桿465移動過程中帶動該螺帽462及該墊片461往該第二移動方向D2橫向移動，且同時該樞接殼472朝該第一移動方向D1擠壓該彈性墊塊464，使該彈性墊塊464朝該第一移動方向D1擠壓該等摩擦片466及該等摩擦墊片467橫向移動，使得各該摩擦片466與兩個相鄰的該等摩擦墊片467迫緊接觸在一起。藉由各該摩擦片466與對應的該等摩擦墊片467之間的摩擦力作用，使得各該摩擦片466無法相對於對應的該等摩擦墊片467以及該活動桿465移動。此時，該鎖定機構46在一鎖定狀態，以將該支撐架41鎖定在所需的角度位置。When the supporting frame 41 is adjusted to a desired angle, the operating rod 468 is moved upward to rotate in a second rotation direction S2 opposite to the first rotation direction S1. During the rotation of the operating rod 468, the movable rod 465 is pulled through the pin 469 to move laterally along a second moving direction D2 opposite to the first moving direction D1. During the movement of the movable rod 465, the nut 462 and the washer 461 are driven to move laterally in the second moving direction D2, and at the same time, the pivotal shell 472 squeezes the elastic pad 464 in the first moving direction D1, so that The elastic pad 464 squeezes the friction plates 466 and the friction pads 467 to move laterally toward the first moving direction D1, so that each friction plate 466 is in tight contact with two adjacent friction pads 467 Together. Due to the action of the friction between the friction plates 466 and the corresponding friction pads 467, the friction plates 466 cannot move relative to the corresponding friction pads 467 and the movable rod 465. At this time, the locking mechanism 46 is in a locked state to lock the support frame 41 at a desired angular position.

參閱圖4、圖6及圖9，當該鎖定機構46在該解鎖狀態時，藉由各該彈簧44對該軸桿413朝遠離該頂板21的方向偏壓，使得各該摩擦片466的該長形孔471頂端恆抵接於該活動桿465上，以將該支撐架41限位在一如圖4所示的初始角度位置。藉由各該彈簧45對對應的該後樞接板33朝對應的該下擋止塊417方向偏壓，使得該後樞接板33底端恆抵接於該下擋止塊417上。藉此，以將該背靠3限位在如圖6所示的該初始角度位置。4, 6 and 9, when the locking mechanism 46 is in the unlocked state, the spring 44 biases the shaft 413 away from the top plate 21, so that the friction plate 466 is The top end of the elongated hole 471 constantly abuts on the movable rod 465 to limit the support frame 41 to an initial angular position as shown in FIG. 4. Each of the springs 45 biases the corresponding rear pivot plate 33 toward the corresponding lower stop block 417 so that the bottom end of the rear pivot plate 33 constantly abuts on the lower stop block 417. In this way, the backrest 3 is limited to the initial angular position as shown in FIG. 6.

參閱圖10及圖11，當乘坐者欲調整該背靠3的後仰角度時，操作該操作桿468以先將該鎖定機構46切換至該解鎖狀態。隨後，乘坐者需透過該背部向後仰並施力推動該背靠3。由於該第二樞接組43設置於該背靠3的該等後樞接板33與該上架體411的該等支臂414之間，因此，該背靠3被施力推動的過程中會由該初始角度位置沿該第一旋轉方向R1繞該第二軸線A2相對於該上架體411旋轉。該背靠3在旋轉的過程中，該等後樞接板33會分別壓縮該等彈簧45(如圖所示6)使其變形並蓄積復位彈力，同時，該背靠3會透過該等樞軸431分別施力於該等支臂414，以促使該支撐架41由該初始角度位置沿該第一旋轉方向R1繞該第一軸線A1相對於該基架2旋轉。該支撐架41在旋轉的過程中，該軸桿413會壓縮該等彈簧44使其變形並蓄積復位彈力。10 and 11, when the occupant wants to adjust the reclining angle of the backrest 3, the operating lever 468 is operated to first switch the locking mechanism 46 to the unlocked state. Subsequently, the occupant needs to lean back through the back and push the backrest 3 with force. Since the second pivotal group 43 is disposed between the rear pivotal plates 33 of the backrest 3 and the arms 414 of the upper frame body 411, the backrest 3 will be pushed by force. The initial angular position rotates relative to the upper frame 411 along the first rotation direction R1 around the second axis A2. During the rotation of the backrest 3, the rear pivot plates 33 respectively compress the springs 45 (as shown in Figure 6) to deform and accumulate the return elastic force. At the same time, the backrest 3 will pass through the pivots. The shafts 431 respectively apply force to the arms 414 to cause the support frame 41 to rotate relative to the base frame 2 along the first rotation direction R1 from the initial angular position around the first axis A1. During the rotation of the supporting frame 41, the shaft 413 compresses the springs 44 to deform them and accumulates a reset elastic force.

由於該背靠3能沿該第一旋轉方向R1繞該第二軸線A2相對於該上架體411旋轉，因此，該背部在施力推動該背靠3而造成該腰部向前***時，該背靠3的該網布32仍能保持完整地服貼於該背部及該腰部的狀態，以提供該背部及該腰部良好的支撐性及舒適性。此外，該上架體411藉由該等支臂414呈傾斜狀地凸設於該下架體410頂部，並且透過該第二樞接組43分別樞接於該背靠3的該等後樞接板33，使得該背靠3被施力推動時能透過左右相間隔的該等樞軸431均勻地分別施壓在該等支臂414上，能有效地提升施壓至該上架體411的施力均勻性。再者，該下架體410能將該等支臂414所輸出的壓力合成一合力，使得該下架體410的該軸桿413能較為輕易地壓縮該等彈簧44使其變形，以提升該支撐架41繞該第一軸線A1旋轉時的順暢性。Since the backrest 3 can rotate relative to the upper frame 411 about the second axis A2 in the first rotation direction R1, when the backrest 3 is forced to push the backrest 3 to cause the waist to bulge forward, the backrest The mesh 32 of the backrest 3 can still be completely attached to the back and the waist, so as to provide good support and comfort for the back and the waist. In addition, the upper frame 411 protrudes from the top of the lower frame 410 in an oblique shape by the arms 414, and is pivotally connected to the rear pivots of the backrest 3 through the second pivot assembly 43. The plate 33 enables the backrest 3 to be evenly pressed on the support arms 414 through the pivots 431 spaced from the left and right when being pushed by force, which can effectively increase the pressure applied to the upper frame 411 Uniformity of force. Furthermore, the lower frame body 410 can synthesize the pressure output by the arms 414 into a resultant force, so that the shaft 413 of the lower frame body 410 can more easily compress the springs 44 to deform and lift the The smoothness of the support frame 41 when rotating around the first axis A1.

當該背靠3的各該後樞接板33頂端抵接對應的該上擋止塊418且被其擋止時，該背靠3無法繼續相對於該上架體411旋轉而被限位在如圖11所示的該後仰角度位置。而當各該摩擦片466的該長形孔471(如圖9所示)底端抵接於該活動桿465且被其阻擋時，則該支撐架41無法繼續相對於該基架2旋轉而被限位在如圖11所示的一後仰角度位置。When the top end of each of the rear pivoting plates 33 of the backrest 3 abuts and is stopped by the corresponding upper stop block 418, the backrest 3 cannot continue to rotate relative to the upper frame body 411 and is restricted as The backward angle position shown in FIG. 11. When the bottom end of the elongated hole 471 (as shown in FIG. 9) of each friction plate 466 abuts against and is blocked by the movable rod 465, the support frame 41 cannot continue to rotate relative to the base frame 2 It is limited at a backward angle position as shown in Figure 11.

在本實施例中，乘坐者也可如圖10所示地只單獨藉由將該背靠3沿該第一旋轉方向R1繞該第二軸線A2旋轉來調整後仰角度，而不透過該支撐架41繞該第一軸線A1旋轉來調整後仰角度。In this embodiment, the occupant can also adjust the reclining angle only by rotating the backrest 3 along the first rotation direction R1 around the second axis A2 as shown in FIG. 10, without passing through the support The frame 41 rotates around the first axis A1 to adjust the backward tilt angle.

參閱圖4及圖11，當乘坐者欲調整該背靠3的前傾角度時，將該背部向前傾。藉由該等彈簧45所蓄積的復位彈力帶動該背靠3沿一相反於該第一旋轉方向R1的第二旋轉方向R2繞該第二軸線A2旋轉，以及藉由該等彈簧44所蓄積的復位彈力帶動該支撐架41沿該第二旋轉方向R2旋轉，能達到調整該背靠3前傾角度的作用。當乘坐者的該背部及該腰部皆移離該背靠3的該網布32時，藉由該等彈簧45、44所蓄積的復位彈力便能自動地分別帶動該背靠3及該支撐架41復位至該初始角度位置。4 and 11, when the occupant wants to adjust the forward tilt angle of the backrest 3, the backrest 3 is tilted forward. The return elastic force accumulated by the springs 45 drives the backrest 3 to rotate around the second axis A2 in a second rotation direction R2 opposite to the first rotation direction R1, and the springs 44 accumulate The reset elastic force drives the support frame 41 to rotate in the second rotation direction R2, which can achieve the effect of adjusting the forward tilt angle of the backrest 3. When the back and waist of the occupant are moved away from the mesh 32 of the backrest 3, the return elastic force accumulated by the springs 45 and 44 can automatically drive the backrest 3 and the support frame respectively 41 is reset to the initial angular position.

需說明的是，在本實施例的其他實施方式中，也可視需求將該背靠3的該後樞接板33、該上架體411的該支臂414，以及該第二樞接組43的該樞軸431數量各自設計為一個，不以本實施例所揭露的數量為限。It should be noted that in other implementations of this embodiment, the rear pivot plate 33 of the backrest 3, the arm 414 of the upper frame 411, and the second pivot assembly 43 can also be The number of the pivots 431 is designed to be one each, and is not limited to the number disclosed in this embodiment.

綜上所述，本實施例的該座椅100，藉由該背靠3能繞該第二軸線A2相對於該支撐架41的該上架體411在該初始角度位置及該後仰角度位置之間旋轉，使得乘坐者的該背部在施力推動該背靠3而造成該腰部向前***時，該背靠3仍能保持完整地服貼於該背部及該腰部的狀態，以提供該背部及該腰部良好的支撐性及舒適性，故確實能達成本新型之目的。In summary, the seat 100 of the present embodiment can be relative to the upper frame 411 of the support frame 41 around the second axis A2 by the backrest 3 in the initial angular position and the reclining angular position. When the backrest 3 is forced to push the backrest 3 to cause the waist to bulge forward, the backrest 3 can still be completely attached to the back and waist to provide the back And the waist has good support and comfort, so it can indeed achieve the purpose of costing new models.

惟以上所述者，僅為本新型之實施例而已，當不能以此限定本新型實施之範圍，凡是依本新型申請專利範圍及專利說明書內容所作之簡單的等效變化與修飾，皆仍屬本新型專利涵蓋之範圍內。However, the above-mentioned are only examples of the present model, and should not be used to limit the scope of implementation of the present model, all simple equivalent changes and modifications made in accordance with the patent scope of the present model application and the contents of the patent specification still belong to This new patent covers the scope.

100:座椅 1:椅墊 2:基架 21:頂板 22:側板 23:框板 3:背靠 31:背框 311:通孔 32:網布 33:後樞接板 4:背靠角度調整裝置 41:支撐架 410:下架體 411:上架體 412:側板 413:軸桿 414:支臂 415:前端面 416:前樞接板 417:下擋止塊 418:上擋止塊 419:容置槽 42:第一樞接組 421:樞軸 43:第二樞接組 431:樞軸 432:扣環 44:彈簧 45:彈簧 46:鎖定機構 461:墊片 462:螺帽 463:墊圈 464:彈性墊塊 465:活動桿 466:摩擦片 467:摩擦墊片 468:操作桿 469:插銷 470:軸孔 471:長形孔 472:樞接殼 A1:第一軸線 A2:第二軸線 S1:第一轉動方向 S2:第二轉動方向 D1:第一移動方向 D2:第二移動方向 R1:第一旋轉方向 R2:第二旋轉方向100: seat 1: Chair cushion 2: base frame 21: Top plate 22: side panel 23: frame plate 3: back 31: back frame 311: Through hole 32: Mesh 33: Rear pivot plate 4: Backrest angle adjustment device 41: Support frame 410: lower shelf 411: Shelf body 412: Side Panel 413: Axle 414: support arm 415: front face 416: Front pivot plate 417: lower stop 418: upper stop 419: Containment Slot 42: The first pivot group 421: Pivot 43: The second pivot group 431: Pivot 432: buckle 44: spring 45: spring 46: Locking mechanism 461: Gasket 462: Nut 463: Washer 464: Elastic cushion 465: active pole 466: Friction Plate 467: Friction Pad 468: Joystick 469: Bolt 470: Shaft hole 471: Long hole 472: Pivot Shell A1: The first axis A2: second axis S1: First rotation direction S2: Second rotation direction D1: The first moving direction D2: second moving direction R1: first rotation direction R2: second rotation direction

本新型之其他的特徵及功效，將於參照圖式的實施方式中清楚地呈現，其中：圖1是本新型座椅的一實施例的一立體圖；圖2是該實施例的一不完整立體分解圖，說明一基架、一背靠，及一背靠角度調整裝置之間的組裝關係；圖3是該實施例的一不完整立體分解圖，說明該背靠及該背靠角度調整裝置之間的組裝關係；圖4是該實施例的一不完整剖視圖，說明該背靠及一支撐架各自在一初始角度位置；圖5是該實施例的一不完整剖視圖，說明一第一樞接組設置於該基架與該支撐架的一下架體之間；圖6是該實施例的一不完整剖視圖；圖7是該實施例的一不完整剖視圖，說明一第二樞接組設置於該背靠與該支撐架的一上架體之間；圖8是該實施例的一不完整剖視圖，說明一鎖定機構的細部結構；圖9是該實施例的一不完整剖視圖；圖10是該實施例的一不完整剖視圖，說明該背靠在一後仰角度位置；及圖11是該實施例的一不完整剖視圖，說明該背靠在該後仰角度位置，該支撐架在一後仰角度位置。 Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a perspective view of an embodiment of the new seat; Figure 2 is an incomplete three-dimensional exploded view of the embodiment, illustrating the assembly relationship between a base frame, a backrest, and a backrest angle adjustment device; Figure 3 is an incomplete exploded view of the embodiment, illustrating the assembly relationship between the backrest and the backrest angle adjustment device; 4 is an incomplete cross-sectional view of the embodiment, illustrating that the backrest and a support frame each have an initial angular position; Figure 5 is an incomplete cross-sectional view of the embodiment, illustrating that a first pivot group is disposed between the base frame and the lower frame of the support frame; Figure 6 is an incomplete cross-sectional view of the embodiment; FIG. 7 is an incomplete cross-sectional view of the embodiment, illustrating that a second pivot group is disposed between the backrest and an upper frame of the support frame; Figure 8 is an incomplete cross-sectional view of the embodiment, illustrating the detailed structure of a locking mechanism; Figure 9 is an incomplete cross-sectional view of the embodiment; Figure 10 is an incomplete cross-sectional view of the embodiment, illustrating the backrest in a reclining position; and FIG. 11 is an incomplete cross-sectional view of the embodiment, illustrating that the back rests at the backward angle position and the support frame at a backward angle position.

1:椅墊 1: Chair cushion

2:基架 2: base frame

21:頂板 21: Top plate

3:背靠 3: back

31:背框 31: back frame

311:通孔 311: Through hole

32:網布 32: Mesh

41:支撐架 41: Support frame

410:下架體 410: lower shelf

411:上架體 411: Shelf body

412:側板 412: Side Panel

413:軸桿 413: Axle

414:支臂 414: support arm

416:前樞接板 416: Front pivot plate

42:第一樞接組 42: The first pivot group

421:樞軸 421: Pivot

431:樞軸 431: Pivot

44:彈簧 44: spring

A1:第一軸線 A1: The first axis

A2:第二軸線 A2: second axis

R2:第二旋轉方向 R2: second rotation direction

Claims

一種座椅，包括: 一基架；一背靠；一背靠角度調整裝置，包含: 一支撐架，包括一下架體，及一上架體；一第一樞接組，設置於該基架與該下架體之間並界定出一第一軸線，該支撐架能繞該第一軸線相對於該基架旋轉；及一第二樞接組，設置於該背靠與該上架體之間並界定出一位於該第一軸線上方並且平行於該第一軸線的第二軸線，該背靠能繞該第二軸線相對於該上架體在一初始角度位置及一後仰角度位置之間旋轉，且該背靠還能透過該支撐架及該第二樞接組繞該第一軸線旋轉。 A seat including: A base frame One back A backrest angle adjustment device, including: A support frame, including a lower frame body and an upper frame body; A first pivoting group, which is arranged between the base frame and the lower frame body and defines a first axis, the support frame can rotate about the first axis relative to the base frame; and A second pivotal group is arranged between the backrest and the upper frame and defines a second axis located above the first axis and parallel to the first axis, and the backrest can circumvent the second axis Relative to the upper frame body, it rotates between an initial angle position and a backward angle position, and the backrest can also rotate around the first axis through the support frame and the second pivot assembly.

如請求項1所述的座椅，其中，該上架體包含至少一支臂，該支臂具有兩個相間隔的前樞接板，該背靠包含至少一位於該等前樞接板之間的後樞接板，該第二樞接組包括至少一界定出該第二軸線的樞軸，該樞軸樞接該等前樞接板與該後樞接板。The seat according to claim 1, wherein the upper frame body includes at least one arm, the support arm has two spaced apart front pivoting plates, and the backrest includes at least one located between the front pivoting plates The second pivotal group includes at least one pivot shaft defining the second axis, and the pivot pivotally connects the front pivotal plates and the rear pivotal plates.

如請求項1所述的座椅，其中，該上架體包含一下擋止塊，及一位於該下擋止塊上方的上擋止塊，該下擋止塊用以擋止該背靠以將其限位在該初始角度位置，該上擋止塊用以擋止該背靠以將其限位在該後仰角度位置。The seat according to claim 1, wherein the upper frame body includes a lower stopper, and an upper stopper located above the lower stopper, and the lower stopper is used to stop the backrest to prevent The limit is at the initial angular position, and the upper stop block is used to stop the backrest to limit it at the backward angle position.

如請求項1所述的座椅，其中，該背靠角度調整裝置還包含一設置於該上架體與該背靠之間的彈簧，該彈簧用以對該背靠朝該初始角度位置方向偏壓。The seat according to claim 1, wherein the backrest angle adjustment device further includes a spring disposed between the upper frame and the backrest, the spring being used to bias the backrest toward the initial angular position. Pressure.

如請求項2所述的座椅，其中，該上架體包含兩個支臂，該背靠包含兩個後樞接板，該第二樞接組包括兩個共同界定出該第二軸線的樞軸，各該樞軸樞接對應的該支臂的該等前樞接板與對應的該後樞接板。The seat according to claim 2, wherein the upper frame includes two support arms, the backrest includes two rear pivot plates, and the second pivot set includes two pivots that collectively define the second axis. A shaft, each of the pivot shafts is pivotally connected to the corresponding front pivot plates of the arm and the corresponding rear pivot plates.

如請求項5所述的座椅，其中，各該支臂具有一下擋止塊，及一位於該下擋止塊上方的上擋止塊，該下擋止塊用以擋止對應的該後樞接板底端以將該背靠限位在該初始角度位置，該上擋止塊用以擋止對應的該後樞接板頂端以將該背靠限位在該後仰角度位置。The seat according to claim 5, wherein each of the support arms has a lower stopper and an upper stopper located above the lower stopper, and the lower stopper is used to stop the corresponding rear The bottom end of the pivot plate is used to limit the backrest at the initial angular position, and the upper stop block is used to stop the corresponding top end of the rear pivot plate to limit the backrest at the backward angle position.

如請求項6所述的座椅，其中，該背靠角度調整裝置還包含兩個彈簧，各該彈簧設置於對應的該支臂與對應的該後樞接板之間，用以對對應的該後樞接板朝對應的該下擋止塊方向偏壓。The seat according to claim 6, wherein the backrest angle adjustment device further includes two springs, each of which is arranged between the corresponding arm and the corresponding rear pivot plate for matching the corresponding The rear pivoting plate is biased toward the corresponding lower stop block.

如請求項5所述的座椅，其中，該等支臂由該下架體頂部朝上並朝相互遠離的方向傾斜延伸。The seat according to claim 5, wherein the arms extend upward from the top of the lower frame and extend in directions away from each other.

如請求項5所述的座椅，其中，該背靠還包含一背框，及一網布，該背框為一封閉連續構造並界定出一通孔，該等後樞接板凸設於該背框後端且左右相間隔，該網布設置於該背框前端且遮蔽於該通孔前端。The seat according to claim 5, wherein the backrest further includes a back frame and a mesh, the back frame is a closed continuous structure and defines a through hole, and the rear pivot plates protrude from the The rear end of the back frame is spaced from left to right, and the mesh cloth is arranged at the front end of the back frame and shields the front end of the through hole.

一種座椅的背靠角度調整裝置，適於設置在一基架與一背靠之間，該背靠角度調整裝置包含: 一支撐架，包括一下架體，及一上架體；一第一樞接組，設置於該基架與該下架體之間並界定出一第一軸線，該支撐架能繞該第一軸線相對於該基架旋轉；及一第二樞接組，設置於該背靠與該上架體之間並界定出一位於該第一軸線上方並且平行於該第一軸線的第二軸線，該背靠能繞該第二軸線相對於該上架體在一初始角度位置及一後仰角度位置之間旋轉。 A backrest angle adjustment device for a seat is suitable for being arranged between a base frame and a backrest. The backrest angle adjustment device includes: A support frame, including a lower frame body and an upper frame body; A first pivoting group, which is arranged between the base frame and the lower frame body and defines a first axis, the support frame can rotate about the first axis relative to the base frame; and A second pivotal group is arranged between the backrest and the upper frame and defines a second axis located above the first axis and parallel to the first axis, and the backrest can circumvent the second axis Relative to the upper frame body, it rotates between an initial angle position and a backward angle position.

如請求項10所述的座椅的背靠角度調整裝置，其中，該上架體包含至少一支臂，該支臂具有兩個相間隔的前樞接板，該背靠包含至少一位於該等前樞接板之間的後樞接板，該第二樞接組包括至少一界定出該第二軸線的樞軸，該樞軸樞接該等前樞接板與該後樞接板。The seat backrest angle adjustment device according to claim 10, wherein the upper frame body includes at least one arm, the support arm has two spaced apart front pivot plates, and the backrest includes at least one The rear pivot plate between the front pivot plates, the second pivot group includes at least one pivot shaft defining the second axis, and the pivot shaft pivotally connects the front pivot plates and the rear pivot plate.

如請求項10所述的座椅的背靠角度調整裝置，其中，該上架體包含一下擋止塊，及一位於該下擋止塊上方的上擋止塊，該下擋止塊用以擋止該背靠以將其限位在該初始角度位置，該上擋止塊用以擋止該背靠以將其限位在該後仰角度位置。The seat backrest angle adjustment device according to claim 10, wherein the upper frame body includes a lower stop block and an upper stop block located above the lower stop block, and the lower stop block is used for stopping The backrest is stopped to limit it at the initial angular position, and the upper stop block is used to stop the backrest to limit it at the backward angle position.

如請求項10所述的座椅的背靠角度調整裝置，還包含一設置於該上架體與該背靠之間的彈簧，該彈簧用以對該背靠朝該初始角度位置方向偏壓。The seat backrest angle adjusting device according to claim 10, further comprising a spring arranged between the upper frame and the backrest, and the spring is used to bias the backrest toward the initial angular position.

如請求項11所述的座椅的背靠角度調整裝置，其中，該上架體包含兩個支臂，該背靠包含兩個後樞接板，該第二樞接組包括兩個共同界定出該第二軸線的樞軸，各該樞軸樞接對應的該支臂的該等前樞接板與對應的該後樞接板。The seat backrest angle adjustment device according to claim 11, wherein the upper frame body includes two support arms, the backrest includes two rear pivot plates, and the second pivot group includes two Each of the pivots of the second axis is pivotally connected to the corresponding front pivot plates of the arm and the corresponding rear pivot plates.

如請求項14所述的座椅的背靠角度調整裝置，其中，各該支臂具有一下擋止塊，及一位於該下擋止塊上方的上擋止塊，該下擋止塊用以擋止對應的該後樞接板底端以將該背靠限位在該初始角度位置，該上擋止塊用以擋止對應的該後樞接板頂端以將該背靠限位在該後仰角度位置。The seat back angle adjustment device according to claim 14, wherein each of the arms has a lower stop block and an upper stop block located above the lower stop block, and the lower stop block is used for Stop the bottom end of the corresponding rear pivot plate to limit the backrest at the initial angular position, and the upper stop block is used to stop the top end of the corresponding rear pivot plate to limit the backrest at the initial angular position. Reclining angle position.

如請求項15所述的座椅的背靠角度調整裝置，還包含兩個彈簧，各該彈簧設置於對應的該支臂與對應的該後樞接板之間，用以對對應的該後樞接板朝對應的該下擋止塊方向偏壓。The backrest angle adjustment device of the seat according to claim 15, further comprising two springs, each of which is arranged between the corresponding arm and the corresponding rear pivot plate, for matching the corresponding rear The pivot plate is biased toward the corresponding lower stop block.

如請求項14所述的座椅的背靠角度調整裝置，其中，該等支臂由該下架體頂部朝上並朝相互遠離的方向傾斜延伸。The device for adjusting the angle of the backrest of the seat according to claim 14, wherein the arms extend upward from the top of the lower frame and extend in directions away from each other.