WO2012065343A1 - 一种不对称的坐具柔性靠背结合件 - Google Patents

一种不对称的坐具柔性靠背结合件 Download PDF

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Publication number
WO2012065343A1
WO2012065343A1 PCT/CN2011/000182 CN2011000182W WO2012065343A1 WO 2012065343 A1 WO2012065343 A1 WO 2012065343A1 CN 2011000182 W CN2011000182 W CN 2011000182W WO 2012065343 A1 WO2012065343 A1 WO 2012065343A1
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WO
WIPO (PCT)
Prior art keywords
base
elastic
elastic arm
joint element
seat
Prior art date
Application number
PCT/CN2011/000182
Other languages
English (en)
French (fr)
Inventor
傅建华
王健王
王安之
Original Assignee
Fu Jianhua
Wang Jianwang
Wang Anzhi
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 Fu Jianhua, Wang Jianwang, Wang Anzhi filed Critical Fu Jianhua
Publication of WO2012065343A1 publication Critical patent/WO2012065343A1/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
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/448—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with resilient blocks

Definitions

  • the utility model relates to a combination device of a seat back and a back frame, in particular to a combination device of a flexible seat back and a back frame, belonging to the field of furniture manufacturing.
  • a chair with a flexible backrest (2006201087427) is such a chair with an adaptive backrest, in order to achieve such a Function, wherein the seat back joint is a key, the inventor has invented and applied for Patent application No.
  • a series of seat back joints are disclosed, one of which is a profiled elastomer made of an elastic material, with a rigid base and sleeve at the end of the elastomer and at the end of the spring arm for use with the seat back and The connection of the back frame, the two elastic arms of the joint are compressed or stretched with the movement of the human body to adapt to the change of the angle of the seat back to achieve the flexibility of the back of the seat, but in use, because of the upper elastic arm and The lower elastic arm is subjected to different forces.
  • the upper elastic arm is mainly subjected to the pressing force and the lower elastic arm is mainly subjected to the tensile force.
  • the upper and lower symmetrical design is subjected to an asymmetrical force, which often causes The elastic arm with large force is broken first, which affects the service life of the chair. How to overcome the above defects to improve performance is the industry Of research.
  • the purpose of the utility model is to overcome the deficiencies of the prior art, and to develop a flexible seat back joint to improve the service life of the flexible backrest, and has the advantages of simple structure, economy, practicality, safety and comfort.
  • An asymmetrical seat flexible back joint is an elastic body made of an elastic material, comprising a base and an elastic arm extending to both ends, the base is made of a rigid material, embedded in the elastic material, the base In the middle there is a mounting hole and a hexagonal counterbore, which is deeply embedded in the end of the elastic arm.
  • the sleeve material is the same as the base material, and there is a through hole and a counterbore in the middle of the sleeve.
  • the sign is that the left and right elastic arms are asymmetrical, the left elastic arm is long, and the surface shape thereof It consists of a beveled surface and a curved surface.
  • the elastic arm on the right side is short, and a limiting groove is arranged on the upper side.
  • the lower plane of the elastic body is also designed to be curved.
  • the coupling member is fixed to the seat back through the through hole at the end of the elastic arm, and the coupling member and the seat back frame are fixed together through the intermediate mounting hole, so that the shorter elastic arm is on the upper side,
  • the longer elastic arm is below, so that in use, when the upper elastic arm is subjected to the pressing force, the lower arm can withstand greater force, and the lower elastic arm is subjected to the tensile force.
  • the limit groove can limit the angle of inclination of the seat back to protect the joint, and the lower plane of the joint is designed to be curved to reduce stress and tensile properties.
  • the shape is changed mainly by analyzing the force of the joint member, and the asymmetric force is adopted by the asymmetric design and the curved surface design, and the molding die can be realized by changing the molding die.
  • Simple basically does not increase the cost, therefore, the utility model has the advantages of simple structure, economical and practical, safe and comfortable use.
  • 1 is a schematic structural view of an asymmetric seat backrest joint
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1
  • FIG. 1 is a schematic structural view of an asymmetrical seat flexible back joint
  • FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, first designing a shape according to the shapes of FIG. 1 and FIG.
  • the mold has a total length of 117 mm, and the center distance from the center of the mounting hole 6 of the intermediate base to the left side of the sleeve through hole is 53 mm, and the upper surface thereof smoothly transitions from a slope 4 to a circular surface 3.
  • the distance from the center of the mounting hole of the intermediate base to the center of the through hole of the right side is 41mm, and a limiting groove 8 is formed on the upper surface thereof, the width of which is 6mm, and the thinnest part of the left and right ends of the elastic body is 20mm, and the intermediate base is the highest. It is 35mm, the width is basically the same as 28mm, and the lower plane is recessed into a double arched arc surface.
  • a base 5 is machined from a metal material.
  • the upper end of the base is rectangular, 35 mm long and 20 mm wide.
  • the diameter of the intermediate mounting hole 6 is 8 mm
  • the opposite side of the hexagonal counterbore 7 is 15 mm
  • the lower portion of the base is cylindrical.
  • the outer diameter is 18mm
  • the two sleeves 9 are made of metal material, the outer diameter of which is 18mm
  • the diameter of the middle through hole 1 is 6mm
  • the diameter of the counterbore 2 is 12mm
  • the upper end is a slope

Landscapes

  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Description

一种不对称的坐具柔性靠背结合件 技术领域
[0001] 本实用新型涉及一种坐具靠背与靠背架的结合装置， 特别是关于柔性坐具靠背与靠 背架的结合装置， 属于家具制造领域。
背景技术
[0002] 随着人民生活水平的提高， 对坐具的要求也越来越高， 为适应需要， 生产厂家开发 的坐具品种也越来越多， 其中椅子的使用特别广泛， 人们居家、 办公等都离不开椅子， 特别 是办公室人士， 长时间坐在椅子上， 对椅子的要求非常高， 传统的椅子其椅背一般都是整体 的， 而且其角度是固定的， 不同的人坐上去其受力不一样， 人体感觉不舒服， 适应性较差， 长期坐后容易产生疲劳甚至发生病变， 因此， 开发一种结构简单、 经济实用、 使用舒适的椅 子， 特别是椅背具有自适应功能的椅子， 一直是坐具行业不断追求的目标， 本发明人发明并 己申请获得授权的实用新型专利一种带有柔性靠背的椅子 （2006201087427 ) 就是这样的一 种具有自适应靠背的椅子， 为了实现这样的功能， 其中的椅背结合件是个关键， 本发明人发 明并己经申请专利的专利申请号为 200920118602.1 的一种柔性靠背坐具、 专利申请号为 200920118496.7 的一种柔性坐具靠背结合件、 专利申请号为 201020003160.9 的一种带有定 位座的坐具柔性靠背结合件等实用新型专利中公开了一系列椅背结合件， 其中有一种是由弹 性材料制成的异型弹性体， 在弹性体的中间和弹性臂的端部都有一个刚性的基座和套管用于 与椅背和椅背架的连接， 这种结合件中两条弹性臂随着人体的运动产生压缩或拉伸以适应椅 背角度的变化达到椅背柔性的目的， 但是在使用中， 因为上边的弹性臂和下边的弹性臂受力 是不同的， 上边的弹性臂主要受到的是挤压力而下边的弹性臂主要受到的是拉伸力， 由于上 下对称的设计却承受的是不对称的力， 往往造成受力大的弹性臂先断裂， 影响椅子的使用寿 命， 如何克服上述缺陷以改善性能是本行业一直在研究的课题。
[0003]
发明内容
[0004] 本实用新型的目的是克服现有技术的不足， 开发一种柔性坐具靠背结合件以提高 柔性靠背椅的使用寿命， 要求具有结构简单、 经济实用、 使用安全舒适的优点。
[0005] 本实用新型的目的是由以下技术方案实现的。 一种不对称的坐具柔性靠背结合 件， 是由弹性材料制成的弹性体， 包括一个基座和向两端延伸的弹性臂， 基座由刚性材料制 成， 镶嵌在弹性材料中， 基座的中间有一个安装孔和内六角沉孔， 在弹性臂的端部深埋镶嵌 有一个套管， 套管材料与基座材料相同， 在套管的中间有一个通孔和沉孔， 其 征是左右两 条弹性臂是不对称的， 左边的弹性臂较长， 其表面形状由一个斜面和弧面构成， 右边的弹性 臂较短， 其上设置有一个限位槽， 弹性体的下平面也设计成弧形。
[0006] 使用时， 通过弹性臂端部的通孔将结合件与椅背固定在一起， 再将结合件与椅背架 通过中间的安装孔固定在一起， 使得较短的弹性臂在上面， 较长的弹性臂在下面， 这样， 在 使用中， 上面的弹性臂受到挤压力时， 由于力臂较短可以承受更大的力， 而下面的弹性臂由 于受到拉伸力， 力臂较长且是弧形可以承受更大的拉力， 限位槽可以限制椅背的倾斜角度以 保护结合件， 结合件的下平面设计成弧形可以减少应力和抗拉伸性能。
[0007] 在本实用新型中， 主要通过对结合件使用受力情况的分析改变形状， 通过不对称的 设计以及弧面设计来适应不对称的受力， 只要改变成型模具即可实现， 工艺非常简单， 基本 不增加成本， 因此， 本实用新型具有结构简单、 经济实用、 使用安全舒适的优点。
附图说明
[0008] 图 1一种不对称的坐具柔性靠背结合件结构示意图
图 2 为图 1的 A-A剖视图 具体实施方式
【0009】 下面结合附图对本实用新型作进一步描述- 图 1是一种不对称的坐具柔性靠背结合件结构示意图， 图 2是图 1 的 A-A剖视图， 首先根 据图 1 和图 2 的形状设计一个模具， 使得弹性体总长度为 117mm， 从中间基座的安装孔 6 的中心到左边的套管通孔的中心距离为 53mm， 其上表面由一斜面 4 平滑过渡到一圆弧面 3， 从中间基座的安装孔中心到右边的套管通孔中心距离为 41mm， 在其上表面开设一限位 槽 8， 其宽度为 6mm， 弹性体左右两端最薄处为 20mm， 中间基座最高为 35mm， 宽度基本 一致为 28mm， 其下平面中间凹陷成双拱形弧面。 用金属材料加工一个基座 5， 基座的上端 成长方形， 长 35mm， 宽 20mm， 中间安装孔 6的直径为 8mm， 内六角沉孔 7 的对边距为 15mm, 基座的下部成圆柱型， 外径为 18mm， 同样用金属材料制成两个套管 9， 其外径为 18mm, 中间通孔 1的直径为 6mm， 沉孔 2的直径为 12mm， 其上端为一斜面， 在模具中对 应基座的位置放置一个基座， 在对应弹性臂端部位置放置一个套管， 在模具中倒入硅橡胶通 过热压成型为一个不对称的坐具柔性靠背结合件。

Claims

1.一种不对称的坐具柔性靠背结合件， 是由弹性材料制成的弹性体， 包括一个基座 （5 ) 和 向两端延伸的弹性臂， 基座由刚性材料制成， 镶嵌在弹性材料中， 基座的中间有一个安装孔
(6) 和内六角沉孔 （7)， 在弹性臂的端部深埋镶嵌有一个套管 (9)， 套管的中间开设有一个 通孔 （1 ) 和沉孔 （2)， 其特征是左右两条弹性臂是不对称的， 左边的弹性臂较长， 其表面 形状由一个斜面 （4) 和弧面 （3 ) 构成， 右边的弹性臂较短， 设置有一个限位槽 （8)。
2. 根据权利要求 1 所述的一种不对称的坐具柔性靠背结合件， 其特征是所述的弹性体的下 平面凹陷并成弧形。
PCT/CN2011/000182 2010-11-18 2011-01-31 一种不对称的坐具柔性靠背结合件 WO2012065343A1 (zh)

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CN110326923A (zh) * 2019-08-09 2019-10-15 安吉县南方家私有限公司 一种靠背转动结构及座椅

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0773555B2 (ja) * 1989-07-31 1995-08-09 株式会社イトーキクレビオ 椅子における座席体の弾力調節装置
CN101208031A (zh) * 2005-03-01 2008-06-25 霍沃思公司 具有腰部和骨盆支承件的座椅靠背
CN101415354A (zh) * 2006-03-31 2009-04-22 东京座椅技术股份有限公司 衬垫体及座椅以及它们的制造方法
CN201630702U (zh) * 2009-04-23 2010-11-17 傅建华 一种柔性坐具靠背结合件

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0773555B2 (ja) * 1989-07-31 1995-08-09 株式会社イトーキクレビオ 椅子における座席体の弾力調節装置
CN101208031A (zh) * 2005-03-01 2008-06-25 霍沃思公司 具有腰部和骨盆支承件的座椅靠背
CN101415354A (zh) * 2006-03-31 2009-04-22 东京座椅技术股份有限公司 衬垫体及座椅以及它们的制造方法
CN201630702U (zh) * 2009-04-23 2010-11-17 傅建华 一种柔性坐具靠背结合件

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