WO2006079256A1 - Chaise avec réglages dorsal et lombaire - Google Patents

Chaise avec réglages dorsal et lombaire Download PDF

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Publication number
WO2006079256A1
WO2006079256A1 PCT/CN2005/000349 CN2005000349W WO2006079256A1 WO 2006079256 A1 WO2006079256 A1 WO 2006079256A1 CN 2005000349 W CN2005000349 W CN 2005000349W WO 2006079256 A1 WO2006079256 A1 WO 2006079256A1
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WO
WIPO (PCT)
Prior art keywords
seat
seat back
sliding
rigid connecting
lower seat
Prior art date
Application number
PCT/CN2005/000349
Other languages
English (en)
French (fr)
Inventor
Wenjin Wu
Original Assignee
Wenjin Wu
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wenjin Wu filed Critical Wenjin Wu
Publication of WO2006079256A1 publication Critical patent/WO2006079256A1/zh

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Classifications

    • 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 a seat, in particular to a seat back waist adjustable seat.
  • Existing seats typically have a base assembly, a seat and a seat back, the seat back being fixedly coupled to the seat, or pivotally coupled, flexibly coupled or rigidly coupled to the base assembly.
  • the height of the back of the chair is the height of the human body, so the entire back of the seat from the head needs to be adapted to the shape and position of the seat back.
  • the seat back of some seats can adjust the tilting angle to accommodate the different sitting postures of the rider to relieve the health hazard of the back of the seat caused by sitting for a long time, especially the waist.
  • the tilt angle adjustment of the seat back changes the entire back of the user, that is, the adjustment of the tilt angle of the back of the seat is on the chest back and the back of the seat.
  • the compression of the spine, muscles and nerves did not provide a significant improvement, which was not conducive to sitting for a long time.
  • An object of the present invention is to provide a seat back waist adjustable seat that can effectively solve the above-mentioned deficiencies in view of the above problems.
  • a seat back waist adjustable seat having a base assembly, a seat and a seat back; the seat back is divided into an upper back and a lower back, and the upper back passes the upper back support assembly and the base The component is connected, and the lower seat back is connected to the seat through the lower seat back support assembly.
  • the upper seat back support assembly is a set of rigid connecting rods, and the base assembly has a swinging mechanism, and the set of rigid connecting rods is coupled to the swinging mechanism of the base assembly.
  • the set of rigid connecting rods can be provided with a lifting mechanism, and the upper seat back is arranged on the lifting mechanism.
  • the lower seat back support assembly described above can be a set of rigid connecting rods.
  • the rigid connecting rod can be provided with a lifting mechanism, and the lower seat back is mounted on the lifting mechanism.
  • the upper seat back support assembly may be two support arms extending downward from the bottom back frame of the upper chair, the other ends of the two support arms being pivotally connected to the base assembly, and the lower seat back being disposed at the bottom of the upper chair A frame and a doorway surrounded by two support arms.
  • the lower seat back is pivotally connected to one end of the set of rigid connecting rods; the lower back of the lower seat is provided with an armrest pivotally connected to the seat, and the armrest and the lower back are arranged to rotate when the armrest rotates around the pivotal point thereof When it can drive the linkage mechanism of the lower seat back around its pivot point.
  • One side of the lower back is a curved surface or an ergonomically designed curved surface.
  • the seat back is divided into an upper seat back and a lower seat back and has independent support mechanisms, so that when the seater is in the reclined posture, since the angle of the back of the upper chair is larger than that of the lower back, The back of the rider will receive a forward and upward support for the lower back to relieve the tiredness of the back of the rider caused by sitting for a long time.
  • FIG. 1 is a schematic front view of a first embodiment of the present invention
  • Figure 2 is a schematic side view of Figure 1;
  • Figure 3 is a side view showing the structure of the first embodiment of the present invention.
  • FIG. 4 is a schematic side view showing the structure of the second embodiment of the present invention.
  • Figure 5 is a front view showing the structure of a second embodiment of the present invention.
  • FIG. 6 is a schematic front view showing the use state 1 of Embodiment 2 of the present invention.
  • Figure 7 is a front view showing the structure of the second embodiment of the present invention.
  • Figure 8 is a front view showing the structure of a third embodiment of the present invention.
  • Figure 9 is a side view showing the structure of Figure 8;
  • Figure 10 is a side view showing the structure of the first embodiment of the present invention.
  • Figure 11 is a side view showing the structure of the second embodiment of the present invention.
  • Figure 12 is a front view showing the structure of Embodiment 4 of the present invention.
  • Figure 13 is a side view showing the structure of Figure 12;
  • Figure 14 is a side view showing the structure of the first embodiment of the present invention.
  • Figure 15 is a side view showing the structure of the second embodiment of the present invention.
  • Figure 16 is a front view showing the structure of a fifth embodiment of the present invention.
  • Figure 17 is a side view showing the structure of Figure 16;
  • Figure 18 is a side view showing the structure of the embodiment 5 of the present invention.
  • Figure 19 is a front view showing the structure of Embodiment 6 of the present invention.
  • Figure 20 is a side view showing the structure of Figure 19;
  • Figure 21 is a side view showing the structure of the embodiment 6 of the present invention.
  • Figure 22 is a schematic structural view of a sliding mechanism according to Embodiment 6 of the present invention.
  • Figure 23 is a schematic structural view of a locking member according to Embodiment 6 of the present invention.
  • Figure 24 is a schematic view showing the connection structure of the rigid connecting rod and the sliding mechanism according to the sixth embodiment of the present invention
  • Figure 25 is a front view showing the structure of the seventh embodiment of the present invention
  • Figure 26 is a side view showing the structure of Figure 25;
  • Figure 27 is a side view showing the structure of the embodiment 7 of the present invention.
  • Figure 28 is a schematic view showing the integrated structure of the lower seat back and the armrest according to the seventh embodiment of the present invention.
  • the present invention has a base assembly 1, a seat 2 and a seat back.
  • the base assembly 1 has a swinging mechanism 11.
  • the back of the chair is divided into an upper back 3 and a lower back 4, and the upper back 3 is connected to the swinging mechanism 11 of the base assembly 1 through a set of rigid connecting rods 31, and the upper back 3 is connected to the set of flexible members via a pivoting member 32.
  • the lower seat back 4 is coupled to the seat 2 by a lower seat back support assembly, and the lower seat back support assembly is rigidly placed in the joint between the lower seat back and the seat, so that the lower seat back and the seat are
  • the appearance is an integrated structure.
  • the present invention has a base assembly 1, a seat 2 and a seat back.
  • the base assembly 1 has a swinging mechanism 11.
  • the back of the chair is divided into an upper back 3 and a lower back 4, and the upper back 3 is connected to the swinging mechanism 11 of the base assembly 1 through a set of rigid connecting rods 31, and the set of rigid connecting rods 31 is provided with a lifting mechanism 33,
  • the seat back 3 is connected to the upper end portion of the lifting mechanism 33 via a pivoting member 32.
  • the lower seat back 4 is connected to the seat 2 by another set of rigid connecting rods 41, which are provided with another lifting mechanism 43, and the lower seat back 4 is connected to the other by another pivoting member 42 The upper end portion of the lifting mechanism 43.
  • the above-mentioned lifting mechanism can adjust the height of the upper back and the lower back to meet the requirements of the seat of different sitting heights and different sitting postures.
  • the lifting mechanism of the upper back can be designed such that the rising path of the upper back is advanced, so that the raised upper back is raised in front of the upper back, in order to obtain more Good chest back pressure effect.
  • Embodiment 3 As shown in Figs. 8 and 9, the present invention has a base assembly 1, a seat 2 and a seat back.
  • the base assembly 1 has a swinging mechanism 11.
  • the back of the chair is divided into an upper back 3 and a lower back 4, and the bottom frame of the upper back 3 extends downwardly to form two support arms 34, which constitute an upper back support assembly, and the other ends of the two support arms are connected to the swing of the base assembly 1.
  • Agency 11 The lower seat back 4 is disposed in a door opening 35 surrounded by the upper back frame and the two support arms.
  • the lower seat back 4 is coupled to the seat 2 by a lower seat back support assembly, and the lower seat back support assembly is rigidly placed in the joint between the lower seat back and the seat, so that the lower seat back and the seat are
  • the appearance is an integrated structure.
  • the present invention has a base assembly 1, a seat 2 and a seat back.
  • Base assembly 1 has A swinging mechanism 11.
  • the back of the chair is divided into an upper back 3 and a lower back 4, and the bottom frame of the upper back 3 extends downwardly to form two support arms 34, which constitute an upper back support assembly, and the other ends of the two support arms are connected to the swing of the base assembly 1.
  • Agency 11 The lower seat back 4 is disposed in a door opening 35 surrounded by a top back frame and two support arms.
  • the lower seat back 4 is coupled to the seat 2 by a set of rigid connecting rods 41.
  • the rigid connecting rod 41 is provided with another lifting mechanism 43 which is disposed at the end of the other lifting mechanism 43.
  • the side of the lower seat back 4 in contact with the seat is a curved surface.
  • the lower seat back can be adjusted in the door opening by the lifting mechanism to adapt to the waist back of the seatless person.
  • Claim. The side of the lower back of the chair is in contact with the human body, and the side of the lower back is pressed to obtain a better back pressure.
  • the curved surface can be other curved surfaces suitable for ergonomic design. The effect of the implementation is the same as in the third embodiment.
  • the present invention has a base assembly 1, a seat 2 and a seat back.
  • the base assembly 1 has a swinging mechanism 11.
  • the seat back is divided into an upper seat back 3 and a lower seat back 4, and the upper seat back 3 is connected to the swinging mechanism 11 of the base assembly 1 through a set of rigid connecting rods 31, and the set of rigid connecting rods 31 is provided with a lifting mechanism 33,
  • the seat back 3 is connected to the upper end portion of the lifting mechanism 33 via a pivoting member 32.
  • a set of rigid connecting rods 41 are provided between the lower seat back 4 and the seat 2, and the lower seat back 4 is connected to the ends of the set of rigid connecting rods 41 via another pivoting member 42.
  • An armrest 21 pivotally connected to the seat 2 is disposed on the two sides of the lower seat back, and an interlocking mechanism is disposed between the armrest and the lower seat back.
  • the linkage mechanism has a movement mechanism when the armrest 21 rotates around the pivot point thereof. The function of the lower seat back to rotate around its pivot point.
  • the linkage mechanism is prior art, and its structure will not be described in detail herein.
  • the present invention has a base assembly 1, a seat 2 and a seat back.
  • the base assembly 1 has a swinging mechanism 11.
  • the seat back is divided into an upper seat back 3 and a lower seat back 4, and the upper seat back 3 is connected to the swinging mechanism 11 of the base assembly 1 through a set of rigid connecting rods 31, and the set of rigid connecting rods 31 is provided with a lifting mechanism 33,
  • the seat back 3 is connected to the upper end portion of the lifting mechanism 33 via a pivoting member 32.
  • a sliding mechanism 22 is disposed on the seat 2, and the sliding mechanism 22 is provided by a slide 221 disposed on two sides of the bottom surface of the seat 2, a slide bar 222 erected in the slide 221 and slidable in the slide 221, and used for locking
  • the locking member 223 restricts the rotation of the rigid connecting rod around the pivot point and the sliding of the sliding rod in the sliding passage.
  • a set of rigid connecting rods 41 is provided between the lower seat back 4 and the seat 2.
  • the rigid connecting rod 41 is V-shaped, one bifurcated end portion is connected to the lower seat back through another pivoting member 42, and the other bifurcated end portion is provided with an armrest 22; the turning portion and the sliding portion of the rigid connecting rod 41 are
  • the rod 222 is pivotally connected.
  • the action and use effect of the upper and lower seat backs are the same as those of the second embodiment. While the locking member 223 is restrained from the rigid connecting rod 41 and the sliding rod 222, the seater can rotate the rigid connecting rod 41 about the pivot and the sliding rod slides in the sliding passage 221 by operating the armrest, thereby realizing the lower seat back. Panning and swinging back and forth to adjust the optimal support position and tilt angle of the lower back to the back of the rider.
  • the present invention has a base assembly 1, a seat 2 and a seat back.
  • the base assembly 1 has a swinging mechanism 11.
  • the seat back is divided into an upper seat back 3 and a lower seat back 4, and the upper seat back 3 is connected to the swinging mechanism 11 of the base assembly 1 through a set of rigid connecting rods 31, and the set of rigid connecting rods 31 is provided with a lifting mechanism 33,
  • the seat back 3 is connected to the upper end portion of the lifting mechanism 33 via a pivoting member 32.
  • the lower seat back 4 and the two armrests 21 form a U-shaped integral structure.
  • the lower seat back connecting component is a set of rigid connecting rods 41.
  • One set of rigid connecting rods is connected to the armrest 21 at one end, and the other end is pivotally connected with the sliding mechanism on the seat as described in Embodiment 6, the structure of the sliding mechanism It is not repeated here.
  • the effect of the present invention is substantially the same as that of the sixth embodiment.
  • a cavity can be formed in the lower back of the chair, and a far-infrared therapeutic instrument, a magnetic therapy device or a massager can be accommodated in the cavity, thereby giving the rider more back health care means, so that the use of the invention is more Chemical.

Description

椅背腰部可调式座椅
本发明所属技术领域
本发明涉及一种座椅， 具体涉及一种椅背腰部可调式座椅。
在本发明之前的现有技术
现有的座椅一般具有底座组件、 椅座及椅背， 椅背或与椅座固定连接， 或与 底座组件枢轴连接、 柔性连接或刚性连接。 而椅背一般的高度为人体的坐高， 因 此坐者自头部以下的整个背部都需与椅背之形状及位置相适应。 虽然， 一些座椅 的椅背可调节倾斜摆动角度以适应坐者的不同坐姿， 以舒缓坐者因长期就坐而给 其背部尤其是腰部带来的健康危害。 但由于现有座椅的椅背均为一体结构， 椅背 的倾斜角度调节系带动使用者的整个背部随之变化， 也就是说， 椅背倾斜角度的 调节对坐者胸背部与腰背部之间的脊骨、 肌肉及神经受压迫状况并没有起到一个 较为明显的改善， 不利于 长时间就坐。
发明目的
本发明的目的在于针对上述问题， 提供一种椅背腰部可调式座椅， 可有效解 决上述不足之处。
本发明采用的技术方案
本发明的技术方案如下： 椅背腰部可调式座椅， 具有底座组件、 椅座及椅背； 所述椅背分成上掎背及下椅背， 且上椅背通过上椅背支撑组件与底座组件连接， 下椅背通过下椅背支撑组件与椅座连接。
上述上椅背支撑组件为一组刚性连接杆， 及底座组件具有一摆动机构， 该组 刚性连接杆与底座组件之摆动机构连接。 而该组刚性连接杆上可设有升降机构， 上椅背装置于该升降机构上。 上述下椅背支撑组件可为一组刚性连接杆。而刚性连接杆上可设有升降机构, 下椅背装置于该升降机构上。
上述上椅背支撑组件可为自上椅背底边框向下延伸出之两个支撑臂， 该两支 撑臂的另一端枢轴接于底座组件上， 而下椅背设置于由上椅背底边框和两个支撑 臂围成的门洞中。
上述下椅背可枢轴接于该组刚性连接杆一端； 下椅背两侧装置有枢接于椅座 上的扶手， 且该扶手与下椅背之间设置有一当扶手绕其枢接点转动时能带动下椅 背绕其枢接点转动的连动机构。 '
上述下椅背的一个侧面为一弧面， 或适于人体工程学设计之曲面。
本发明由于釆用上述结构， 椅背分成上椅背和下椅背并具有各自独立的支撑 机构， 使坐者采用后仰坐姿时， 由于上椅背后仰的角度较下椅背的大， 因此坐者 的腰背部将得到下椅背一个向前、 向上的承托， 以缓解因长时间就坐而导致的坐 者腰背部劳累状况。
附图说明
图 1是本发明实施例 1的正面结构示意图；
图 2是图 1的侧面结构示意图；
图 3是本发明实施例 1使用状态一的侧面结构示意图；
图 4是本发明实施例 1使用状态二的侧面结构示意图；
图 5是本发明实施例 2的正面结构示意图；
图 6是本发明实施例 2使用状态一的正面结构示意图；
图 7是本发明实施例 2使用状态二的正面结构示意图；
图 8是本发明实施例 3的正面结构示意图； ' 图 9是图 8的侧面结构示意图；
图 10是本发明实施例 3使用状态一的侧面结构示意图；
图 11是本发明实施例 3使用状态二的侧面结构示意图；
图 12是本发明实施例 4的正面结构示意图；
图 13是图 12的侧面结构示意图；
图 14是本发明实施例 4使用状态一的侧面结构示意图；
图 15是本发明实施例 4使用状态二的侧面结构示意图；
图 16是本发明实施例 5的正面结构示意图；
图 17是图 16的侧面结构示意图；
图 18是本发明实施例 5使用状态的侧面结构示意图；
图 19是本发明实施例 6的正面结构示意图；
图 20是图 19的侧面结构示意图；
图 21是本发明实施例 6使用状态的侧面结构示意图；
图 22是本发明实施例 6所述滑动机构的结构示意图；
图 23是本发明实施例 6所述锁定构件的结构示意图；
图 24是本发明实施例 6所述刚性连接杆与滑动机构的连接结构示意图; 图 25是本发明实施例 7的正面结构示意图；
图 26是图 25的侧面结构示意图；
图 27是本发明实施例 7使用状态的侧面结构示意图；
图 28是本发明实施例 7所述下椅背与扶手成一体结构的示意图。
现结合附图和实施例对本发明作进一步说明- 实施例 1 如图 1、 图 2所示， 本发明具有底座组件 1、 椅座 2及椅背。 底座组件 1具有 一摆动机构 11。 椅背分成上椅背 3及下椅背 4， 上椅背 3通过一组刚性连接杆 31 连接在底座组件 1之摆动机构 11上， 上椅背 3系通过枢接件 32连接在该组柔性 连接杆 31—端上的。 下椅背 4系通过下椅背支撑组件连接在椅座 2上， 而该下椅 背支撑组件因为刚性且藏置于下椅背和椅座的连接部位中， 故下椅背和椅座在外 观上成一体化结构。 '
如图 3至图 4所示， 本发明使用时， 当坐者釆用后仰坐姿时， 会给予上椅背 一个靠压的力， 该靠压的力在刚性连接杆及摆动机构的作用下将使整个上椅背向 后摆动， 同时上椅背也绕枢接点转动调整与坐者胸背部相适应的角度。 由于下椅 背不动， 因此坐者在后仰过程中下椅背会给予其腰背部一个向前、 向上的承托， 上椅背向后摆动的幅度越大， 下椅背对坐者腰背部的承托力度也就越大， 以使坐 者腰背部脊骨、 肌肉及神经受压迫状况得到改善， 缓解了坐者腰背部的劳累状况。 实施例 2
如图 5至图 7所示， 本发明具有底座组件 1、椅座 2及椅背。底座组件 1具有 一摆动机构 11。 椅背分成上椅背 3及下椅背 4， 上椅背 3通过一组刚性连接杆 31 连接在底座组件 1之摆动机构 11上， 而该组刚性连接杆 31上设有升降机构 33， 上椅背 3则通过枢接件 32连接在该升降机构 33的上端部。 下椅背 4通过另一组 刚性连接杆 41连接在椅座 2上， 该刚性连接杆 41上设有另一升降机构 43， 下椅 背 4系通过另一枢接件 42连接在该另一升降机构 43的上端部。
如图 6、 图 7所示， 本发明使用时， 当坐者釆用后仰坐姿时， 会给予上椅背一 个靠压的力， 该靠压的力在刚性连接杆及摆动机构的作用下将使整个上椅背向后 摆动， 同时上椅背也绕其枢接点转动调整与坐者胸背部相适应的角度。 而此时下 椅背亦会绕其枢接点转动调整与坐者腰背部相适应的角度并给予坐者腰背部一个 向前、 向上的承托。 由于上椅背与下椅背的后摆幅度不同， 上椅背向后摆动的幅 度越大， 下椅背对坐者腰背部的承托力度也就越大， 以使坐者腰背部脊骨、 肌肉 及神经受压迫状况得到改善， 缓解了坐者腰背部的劳累状况。
上述之升降机构可各自调节上椅背和下椅背的高度， 以满足不同坐高及不同 坐姿习惯的坐者要求。 此外， 上椅背的升降机构可设计成使上椅背之升高路径趋 前， 以使升高后的上椅背所处立面较上椅背升高前所处立面前， 以期获得更佳之 胸背部顶压效果。
实施例 3 . 如图 8、 图 9所示， 本发明具有底座组件 1、 椅座 2及椅背。 底座组件 1具有 一摆动机构 11。 椅背分成上椅背 3及下椅背 4， 上椅背 3之底边框向下延伸出两 个支撑臂 34， 构成上椅背支撑组件， 两支撑臂的另一端连接于底座组件 1之摆动 机构 11上。 下椅背 4设置于由上椅背底边框和两个支撑臂围成的门洞 35中。 下 椅背 4系通过下椅背支撑组件连接在椅座 2上， 而该下椅背支撑组件因为刚性且 藏置于下椅背和椅座的连接部位中， 故下椅背和椅座在外观上成一体化结构。
如图 10至 11所示， 本发明使用时， 当坐者采用后仰坐姿时， 会给予上椅背 3 一个靠压的力， 底座组件之摆动机构带动整个上椅背 3 向后摆动， 由于下椅背 4 不动， 因此坐者在后仰过程中下椅背会给予其腰背部一个向前、 向上的承托， 上 椅背向后摆动的幅度越大， 该承托的力度也就越大， 以使坐者腰背部脊骨、 肌肉 及神经受压迫状况得到有效改善， 缓解了坐者腰背部的劳累状况。
实施例 4
如图 12、 13所示， 本发明具有底座组件 1、 椅座 2及椅背。 底座组件 1具有 一摆动机构 11。 椅背分成上椅背 3及下椅背 4， 上椅背 3之底边框向下延伸出两 个支撑臂 34， 构成上椅背支撑组件， 两支撑臂的另一端连接于底座组件 1之摆动 机构 11上。 下椅背 4设置于由上椅背底边框和两个支撑臂围成的门洞 35中。 下 椅背 4通过一组刚性连接杆 41连接在椅座 2上， 该刚性连接杆 41上设有另一升 降机构 43，下椅背 4安设在该另一升降机构 43的端部。下椅背 4与坐者接触之侧 面为一弧面。
如图 14至图 15所示， 因上述门洞的尺寸较大而下椅背的尺寸较小， 因此下 椅背可在门洞中通过升降机构调整其高度， 以适应不用坐者的腰背部靠压要求。 而下椅背与人体接触之侧面为一弧面， 可获得更佳的腰背部靠压效果， 当然， 该 弧面也可以是其它适于人体功学设计的其它曲面。 其实施效果同实施例 3。
实施例 5
如图 16至图 18所示，本发明具有底座组件 1、椅座 2及椅背。底座组件 1具 有一摆动机构 11。 椅背分成上椅背 3及下椅背 4， 上椅背 3通过一组刚性连接杆 31连接在底座组件 1之摆动机构 11上，而该组刚性连接杆 31上设有升降机构 33， 上椅背 3则通过枢接件 32连接在该升降机构 33的上端部。 下椅背 4与椅座 2之 间设有一组刚性连接杆 41，下椅背 4系通过另一枢接件 42连接在该组刚性连接杆 41的端部。 下椅背两侧装置有枢接于椅座 2上的扶手 21， 且该扶手与下椅背之间 设置有一连动机构， 该连动机构具有当扶手 21绕其枢接点转动时， 能带动下椅背 绕其枢接点转动的功能。 该连动机构为现有技术， 在此不再详述其结构。
如图 17、 图 18所示， 本发明使用时， 其上、下椅背的动作及使用效果同实施 例 2。而当坐者根据其需要操控扶手时，可通过扶手的摆动及连动机构的作用带动 下椅背绕其枢接点转动， 对其腰部施加不同的承托力度。 实施例 6
如图 19至图 24所示， 本发明具有底座组件 1、椅座 2及椅背。底座组件 1具 有一摆动机构 11。 椅背分成上椅背 3及下椅背 4， 上椅背 3通过一组刚性连接杆 31连接在底座组件 1之摆动机构 11上，而该组刚性连接杆 31上设有升降机构 33， 上椅背 3则通过枢接件 32连接在该升降机构 33的上端部。 椅座 2上设有一滑动 机构 22， 该滑动机构 22由设于椅座 2底面两侧的滑道 221、 架设于滑道 221中并 可于滑道 221内滑动的滑杆 222及用以锁定限制刚性连接杆绕枢接点转动及滑杆 于滑道内滑动的锁定构件 223组成。 下椅背 4与椅座 2之间设有一组刚性连接杆 41。该刚性连接杆 41呈 V型， 其一个分叉端部通过另一枢接件 42与下椅背连接， 其另一个分叉端部则装置有扶手 22;刚性连接杆 41的转折部与滑杆 222枢轴连接。
如图 20至图 24所示， 本发明使用时， 其上、 下椅背的动作及使用效果同实 施例 2。 而松开锁定构件 223对刚性连接杆 41及滑杆 222的限制， 坐者可通过操 控扶手使刚性连接杆 41绕枢轴处转动及滑杆于滑道 221中滑动， 从而实现下椅背 的平移及前后摆动， 以调整下椅背对坐者腰背部最佳之承托位置及倾斜角度。 实施例 7
如图 25至图 28所示， 本发明具有底座组件 1、椅座 2及椅背。底座组件 1具 有一摆动机构 11。 椅背分成上椅背 3及下椅背 4， 上椅背 3通过一组刚性连接杆 31连接在底座组件 1之摆动机构 11上，而该组刚性连接杆 31上设有升降机构 33， 上椅背 3则通过枢接件 32连接在该升降机构 33的上端部。 下椅背 4与两扶手 21 构成 U形一体结构。 下椅背连接组件为一组刚性连接杆 41， 该组刚性连接杆一端 与扶手 21连接， 另一端则与如实施例 6所述之椅座上的滑动机构枢轴连接， 该滑 动机构的结构在此不再重复讲述。 如图 26、 图 27所示， 本发明的实施效果基本同实施例 6。 此外， 上述下椅背内可形成容腔， 而容腔内可容置远红外治疗仪、 磁疗仪或 按摩器等， 给予坐者更多的背部保健手段， 使本发明的用途更多元化。

Claims

权 利 要 求
1、 椅背腰部可调式座椅， 具有底座组件、 椅座及椅背， 其特征是： 所述椅背 分成上椅背及下椅背， 且上椅背通过上椅背支撑组件与底座组件连接， 下椅背通 过下椅背支撑组件与椅座连接。
2、 根据权利要求 1所述的座椅， 其特征是： 所述上椅背支撑组件为一组刚性 连接杆， 及底座组件具有一摆动机构， 该组刚性连接杆与底座组件之摆动机构连 接。
3、根据权利要求 2所述的座椅，其特征是：所述刚性连接杆上设有升降机构， 上椅背装置于该升降机构上。
4、 根据权利要求 3所述的座椅， 其特征是： 所述升降机构使上椅背之升高路 径趋前， 以使升高后的上椅背所处立面较上椅背升高前所处立面前。
5、 根据权利要求 1所述的座椅， 其特征是： 所述下椅背支撑组件为一组刚性 连接杆。
6、根据权利要求 5所述的座椅，其特征是：所述刚性连接杆上设有升降机构， 下椅背装置于该升降机构上。
7、 根据权利要求 1或 5或 6所述的座椅， 其特征是： 所述上椅背支撑组件为 自上椅背底边框向下延伸出之两个支撑臂， 该两支撑臂的另一端连接于底座组件 上， 而下椅背设置于由上椅背底边框和两个支撑臂围成的门洞中。
8、 根据权利要求 5所述的座椅， 其特征是： 所述下椅背枢轴接于该组刚性连 接杆一端； 下椅背两侧装置有枢接于椅座上的扶手， 且该扶手与下椅背之间设置 有一当扶手绕其枢接点转动时能带动下椅背绕其枢接点转动的连动机构。
9、 根据权利要求 5所述的座椅， 其特征是： 所述刚性连接杆呈 V型， 其一个 分叉端部通过一枢接件与下椅背连接， 其另一个分叉端部则装置有扶手； 所述椅座上设有一滑动机构， 该滑动机构由设于椅座底面两侧的滑道、 架设 于滑道中并可于滑道内滑动的滑杆及用以锁定限制刚性连接杆绕枢接点转动及滑 杆于滑道内滑动的锁定构件组成；
上述刚性连接杆的转折部与滑杆枢轴连接。
10、 根据权利要求 1所述的座椅， 其特征是： 所述下椅背与两扶手构成 u形 一体结构， 及下椅背连接组件为一组刚性连接杆；
所述椅座上设有一滑动机构， 该滑动机构由设于椅座底面两侧的滑道、 架设 于滑道中并可于滑道内滑动的滑杆及用以锁定限制刚性连接杆绕枢接点转动及滑 杆于滑道内滑动的锁定构件组成；
该组刚性连接杆一端与扶手连接， 另一端与滑杆枢轴连接。
11、 根据权利要求 1 所述的座椅， 其特征是： 所述下椅背的一个侧面为一弧 面， 或适于人体工程学设计之曲面。
12、 根据权利要求 1或 11所述的座椅， 其特征是： 所述卞椅背内形成容腔。
13、根据权利要求 12所述的座椅，其特征是：所述容腔内容置远红外治疗仪， 或磁疗仪， 或按摩器。
PCT/CN2005/000349 2005-01-27 2005-03-21 Chaise avec réglages dorsal et lombaire WO2006079256A1 (fr)

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