US20150182027A1 - Composite chair - Google Patents

Composite chair Download PDF

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Publication number
US20150182027A1
US20150182027A1 US14/142,217 US201314142217A US2015182027A1 US 20150182027 A1 US20150182027 A1 US 20150182027A1 US 201314142217 A US201314142217 A US 201314142217A US 2015182027 A1 US2015182027 A1 US 2015182027A1
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United States
Prior art keywords
unit
mounted
user
base unit
composite chair
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US14/142,217
Inventor
Hong-Yuan Chang
Yao-Yuan ZENG
Yao-Wen ZENG
Original Assignee
Hong-Yuan Chang
Yao-Yuan ZENG
Yao-Wen ZENG
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 Hong-Yuan Chang, Yao-Yuan ZENG, Yao-Wen ZENG filed Critical Hong-Yuan Chang
Priority to US14/142,217 priority Critical patent/US20150182027A1/en
Publication of US20150182027A1 publication Critical patent/US20150182027A1/en
Application status is Abandoned legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C3/00Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/18Chairs or stools with rotatable seat
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C1/00Chairs adapted for special purposes
    • A47C1/02Reclining or easy chairs
    • A47C1/022Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A47C1/0242Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination by electric motors
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/02Seat parts
    • A47C7/024Seat parts with double seats
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/02Seat parts
    • A47C7/14Seat parts of adjustable shape; elastically mounted ; adaptable to a user contour or ergonomic seating positions
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/36Support for the head or the back
    • A47C7/40Support for the head or the back for the back
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/36Support for the head or the back
    • A47C7/40Support for the head or the back for the back
    • A47C7/405Support for the head or the back for the back with double backrests
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/36Support for the head or the back
    • A47C7/40Support for the head or the back for the back
    • A47C7/46Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • A47C7/462Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/36Support for the head or the back
    • A47C7/40Support for the head or the back for the back
    • A47C7/48Support for the head or the back for the back of freely-rotatable type
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C9/00Stools for specified purposes
    • A47C9/002Stools for specified purposes with exercising means or having special therapeutic or ergonomic effects

Abstract

A composite chair adapted for permitting a user to sit thereon. The composite chair includes a base unit and a seat unit. The seat unit includes a seat body that is mounted on the base unit and that is adapted for supporting the user's buttocks, and a pushing member that is fixedly mounted on a rear end of the seat body. The seat body is pivotable relative to the base unit for inclining the pushing member to push the user' s waist forward.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The invention relates to a chair, more particularly to a composite chair.
  • 2. Description of the Related Art
  • Modern people value the quality of life, which is reflected in their requirements for daily utilities. These utilities must not only provide better performance but also aid in health. Taking chairs for example, most modern chairs are designed with a backrest to support a user's back. Unfortunately, most backrests are plate-shaped and tend to cause discomfort and lead to posture problems.
  • In view of this, vendors began developing ergonomic chairs similar to the conventional chair 1 shown in FIG. 1. The conventional chair 1 includes a support frame 11, a backrest unit 12 connected to the support frame 11, and a seat unit 13 connected to the support frame 11. The backrest unit 12 includes an arcuate rod 121, two coupling members 122 respectively sleeved on opposite ends of the arcuate rod 121, and two backrest pads 123 respectively connected to the coupling members 122. The backrest pads 123 are rotatable in upward, downward, left and right directions relative to the support frame 11, and the distance between the backrest pads 123 is adjustable by moving the coupling members 122 to different positions along the arcuate rod 121. Through this configuration, the user's back and waist muscles are comfortably supported by the backrest pads 123.
  • However, even though the conventional chair 1 provides more comfort, it fails to provide support to the user's remaining body parts. In addition, most users such as office workers remain seated for an extended period of time without exercise, causing posture problems that affect health. Therefore, there is room for improvement regarding the functionality of the conventional chair 1.
  • SUMMARY OF THE INVENTION
  • Therefore, the object of the present invention is to provide a composite chair that can eliminate the aforesaid drawbacks of the prior art.
  • According to the present invention, there is provided a composite chair adapted for permitting a user to seat thereon. The composite chair includes a base unit and a seat unit. The seat unit includes a seat body and a pushing member. The seat body is mounted on the base unit and is adapted for supporting the user's buttocks. The pushing member is fixedly mounted on a rear end of the seat body. The seat body is pivotable relative to the base unit for inclining the pushing member to push the user's waist forward.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • Other features and advantages of the present invention will become apparent in the following detailed description of the preferred embodiment with reference to the accompanying drawings, of which:
  • FIG. 1 is a perspective view of a conventional chair;
  • FIG. 2 is a perspective view of the preferred embodiment of a composite chair according to the present invention;
  • FIG. 3 is a side schematic view of the preferred embodiment for illustrating a user permitted to sit thereon;
  • FIG. 4 is a side schematic view of the preferred embodiment for illustrating a seat body inclined forward;
  • FIG. 5 is a side schematic view of the preferred embodiment for illustrating the seat body inclined backward;
  • FIG. 6 is a top schematic view of the preferred embodiment for illustrating support units and armrest members in a retracted position;
  • FIG. 7 is a top schematic view of the preferred embodiment for illustrating the support units and armrest members in an expanded position;
  • FIG. 8 is a side schematic view of the preferred embodiment for illustrating the seat body and a backrest unit inclined forward; and
  • FIG. 9 is a side schematic view of the preferred embodiment for illustrating the backrest unit inclined backward.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • Referring to FIGS. 2 and 3, the preferred embodiment of a composite chair according to the present invention is adapted for permitting a user 9 to sit thereon, and includes a base unit 2, a seat unit 3, a shifting device 4, a backrest unit 5, an inflatable unit 6 and an armrest unit 7.
  • The base unit 2 includes two front legs 21 spacedly disposed, two rear legs 22 (only one can be seen) spacedly disposed, a connecting plate 23 interconnecting the front and rear legs 21, 22, and a top board 24 interconnecting the front legs 21 and disposed below the shifting device 4.
  • The seat unit 3 includes a seat body 31 and a pushing member 32. The seat body 31 is mounted on the base unit 2 and is adapted for supporting the buttocks of the user 9. The pushing member 32 is fixedly mounted on a rear end of the seat body 31. The seat body 31 is pivotable relative to the base unit 2 for inclining the pushing member 32 to push the waist of the user 9 forward. The seat unit 3 further includes a first power source 33 and a first driving member 34 that are mounted on the connecting plate 23. The first driving member 34 drives a pivoting motion of the seat body 31 while the first power source 33 provides power to the first driving member 34. In this embodiment, the first driving member 34 is a cam; by controlling the rotation of the cam, the seat body 31 can be disposed horizontally (see FIG. 3), inclined forward (see FIG. 4) and inclined backward (see FIG. 5) relative to the base unit 2. The first driving member 34 may also be a pneumatic cylinder or a hydraulic cylinder and is not limited to what is disclosed herein.
  • Referring to FIGS. 3 and 6, the shifting device 4 is pivotally mounted on the base unit 2, is disposed in front of the seat unit 3, and includes two support units 41 adapted for respectively supporting the thighs of the user 9. The support units 41 are movable relative to the base unit 2 between a retracted position (see FIG. 6), where the support units 41 are close to each other, and an expanded position (see FIG. 7), where the support units 41 are away from each other. The top board 24 of the base unit 2 is formed with two arcuate slide grooves 241 spaced apart from each other. Each of the support units 41 of the shifting device 4 includes a support plate 411, and a limiting member 412 that protrudes downward from the support plate 411 for engaging slidably a respective one of the slide grooves 241 so as to be limited therein, thus allowing the support plates 411 of the support units 41 to be movable between the retracted and expanded positions.
  • With reference to FIGS. 2 and 3, the backrest unit 5 is mounted on and pivotable relative to the base unit 2 in a front-rear direction for moving the back of the user 9. The backrest unit 5 includes a second driving member 51, a back board 52 and a second power source 53. The second driving member 51 is pivotally mounted between the rear legs 22 of the base unit 2. The back board 52 is mounted on the second driving member 51 and is formed with two concave receiving portions 521 facing the user 9. The second power source 53 is mounted on the base unit 2 for providing power to the second driving member 51. In this embodiment, the second driving member 51 is a motor, and the power source 53 is mounted on one of the rear legs 22; these configurations are not limited to what is disclosed herein.
  • Referring to FIGS. 3 and 7, the armrest unit 7 is mounted on and vertically movable relative to the backrest unit 5, and is adapted for supporting respectively the arms of the user 9. The armrest unit 7 includes a connecting member 71 and two armrest members 72. The connecting member 71 is mounted on the backrest unit 5 and is vertically movable relative to the backrest unit 5. The armrest members 72 are respectively and pivotally connected to left and right ends of the connecting member 71 and are horizontally pivotable relative to the connecting member 71. The armrest unit 7 further includes two third driving members 73 and a third power source 74. The third driving members 73 are spacedly mounted on the back board 52 of the backrest unit 5 for controlling movement of the connecting member 71 in a top-bottom direction while the third power source 74 provides power to the third driving members 73. Each of the third driving members 73 may be a pneumatic cylinder or a hydraulic cylinder and is not limited to what is disclosed herein.
  • Referring again to FIGS. 2 and 3, the inflatable unit 6 is mounted on a side of the backrest unit 5, faces the user 9 and is inflatable for supporting the back of the user 9. The inflatable unit 6 includes two inflatable members 61 and an inflating-deflating component 62. Each inflatable member 61 is received in a respective one of the receiving portions 521 of the backrest unit 5. The inflating-deflating component 62 is mounted on the back board 52 for inflating the inflatable members 61 to support the back of the user 9, and deflating the inflatable members 61 when necessary (e.g., when not in use). The inflating-deflating component 62 has a built-in power source (not shown). It should be noted that due to the viewing angle, only one of the inflatable members 61 is shown in the side schematic views.
  • With reference to FIG. 3, the composite chair of this invention is to be used as an ordinary chair that permits a user 9 to sit thereon, where the two third driving members 73 are operated to adjust the height of the connecting member 71 for positioning the armrest members 72 at the appropriate height. When the first power source 33 drives rotation of the first driving member 34 such that the seat body 31 is inclined forward as shown in FIG. 8, the seat body 31 will synchronously drive the pushing member 32 to tilt forward so as to push the waist and hips of the user 9. In the meantime, the second power source 53 of the backrest unit 5 drives the second driving member 51 to rotate and thereby tilt the back board 52 forward, thus pushing the upper body of the user 9 slightly forward. Simultaneously, the inflating-deflating component 62 of the inflatable unit 6 charges air into the inflatable members 61 and once inflated, the back of the user 9 is pushed forward and supported by the same. This coordinated motion raises the chest of the user 9 forward and upward so as to stretch the abdominal, waist and back muscles of the user 9; at this time, the arms and legs of the user 9 will naturally stretch outward to move the two armrest members 72 outwardly and not move the support plates 411 from the retracted position to the expanded position as shown in FIG. 7. It should be noted that the pushing member 32 of the seat unit 3 has an inverted trapezoid shape that corresponds to the pelvis of the user 9 for better pushing results.
  • When the first driving member 34 rotates back to the position shown in FIG. 3, the seat body 31 is disposed horizontally relative to the base unit 2, and the inflating-deflating component 62 discharges the air from the inflatable members 61 such that the body of the user 9 returns to its initial/original posture.
  • Referring to FIG. 9, since the back board 52 of the backrest unit 5 is independently pivotable relative to the base unit 2 as controlled by the second driving member 51, which is powered by the second power source 53, the user 9 can train his/her abdominal and back muscles if desired. For example, in FIG. 9, the back board 52 is inclined backward, allowing the upper body of the user 9 to face slightly upward, thus stretching the abdominal and thigh muscles (e.g. quadriceps). When the back board is inclined backward, the inflating-deflating component 62 charges air into the inflatable members 61 for supporting the back of the user 9. In practice, the seat body 31, the pushing member 32 and the back board 52 can simultaneously incline backward.
  • Referring back to FIGS. 2 and 3, each of the support plates 411 of the shifting device 4 and the armrest members 72 of the armrest unit 7 are moved by the user 9, allowing the user 9 to train his/her arm and leg muscles separately. Moreover, operations of the first, second and third power sources 33, 53, 74, and the inflating-deflating component 62 can be controlled by a single controller (not shown), which may independently activate these components or control them in a predetermined sequence, e. g., activating the first power source 33, the second power source 53 and the inflating-deflating component 62 in sequence. Since these controlling methods are well known to those skilled in the art, they will not be further detailed herein.
  • In sum, in the composite chair of this invention, through the pivoting of the seat body 31 of the seat unit 3 relative to the base unit 2, the pushing member 32 will push the waist and hips of the user 9 and the pushing effect is enhanced due to the inverted trapezoid shape (which corresponds to the shape of the pelvis) of the pushing member 32. The inflatable members 61 of the inflatable unit 6 can be inflated to push and support the back of the user 9 to raise the chest of the user 9 up and forward, thus stretching the back and abdominal muscles of the user 9 and strengthening the core of the user 9. Moreover, each of the seat unit 3, the shifting device 4, the backrest unit 5, the inflatable unit 6 and the armrest unit 7 can be operated independently, allowing the user 9 to train and/or rehabilitate the muscle group of a designated body portion according to the needs of the user 9. Therefore, the purpose of this invention is served.
  • While the present invention has been described in connection with what is considered the most practical and preferred embodiment, it is understood that this invention is not limited to the disclosed embodiment but is intended to cover various arrangements included within the spirit and scope of the broadest interpretation so as to encompass all such modifications and equivalent arrangements.

Claims (12)

What is claimed is:
1. A composite chair adapted for permitting a user to sit thereon, said composite chair comprising:
a base unit; and
a seat unit including
a seat body that is mounted on said base unit and that is adapted for supporting the user's buttocks, and
a pushing member that is fixedly mounted on a rear end of said seat body, said seat body being pivotable relative to said base unit for inclining said pushing member to push the user's waist forward.
2. The composite chair as claimed in claim 1, further comprising a shifting device that is mounted on said base unit, that is disposed in front of said seat unit, and that includes two support units adapted for respectively supporting the user's thighs and movable relative to said base unit between a retracted position, where said support units are close to each other, and an expanded position, where said support units are away from each other.
3. The composite chair as claimed in claim 1, further comprising a backrest unit that is mounted on said base unit and that is pivotable in a front-rear direction relative to said base unit for moving the user's back.
4. The composite chair as claimed in claim 3, further comprising an inflatable unit that is mounted on aside of said backrest unit, that faces the user, and that is inflatable for supporting the user's back.
5. The composite chair as claimed in claim 4, further comprising an armrest unit that is mounted on said backrest unit, that is vertically movable relative to said backrest unit and that is adapted for supporting the user's arms.
6. The composite chair as claimed in claim 5, wherein said armrest unit includes
a connecting member that is mounted on said backrest unit and that is vertically movable relative to said backrest unit, and
two armrest members that are respectively and pivotally connected to left and right ends of said connecting member and that are horizontally pivotable relative to said connecting member.
7. The composite chair as claimed in claim 1, wherein:
said base unit includes
two front legs that are spacedly disposed,
two rear legs that are spacedly disposed, and
a connecting plate that interconnects said front and rear legs and that is disposed below said seat body of said seat unit; and
said seat unit further including a driving member mounted on said connecting plate for driving a pivoting motion of said seat body, and a power source mounted on said connecting plate for providing power to said driving member.
8. The composite chair as claimed in claim 2, wherein said base unit further includes a top board interconnecting said front legs and disposed below said shifting device, said top board being formed with two arcuate slide grooves that are spaced apart from each other, each of said support units of said shifting device including a support plate, and a limiting member that protrudes downward from said support plate for engaging slidably a respective one of said slide grooves, such that said support units are movable relative to said base unit between the retracted position and the expanded position.
9. The composite chair as claimed in claim 3, wherein said backrest unit includes
a driving member that is pivotally mounted between said rear legs,
a back board that is mounted on said driving member, and
a power source that is mounted on said base unit for providing power to said driving member.
10. The composite chair as claimed in claim 6, wherein said armrest unit further includes
two driving members spacedly mounted on said back board of said backrest unit for controlling movement of said connecting member in a top-bottom direction, and
a power source for providing power to said driving members.
11. The composite chair as claimed in claim 10, wherein said back board of said backrest unit is formed with two concave receiving portions facing the user's back, said inflatable unit including two inflatable members, each of which is received in a respective one of said receiving portions, and an inflating-deflating component which is mounted on said back board for inflating/deflating said inflatable members.
12. The composite chair as claimed in claim 1, wherein said pushing member of said seat unit has an inverted trapezoid shape
US14/142,217 2013-12-27 2013-12-27 Composite chair Abandoned US20150182027A1 (en)

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US14/142,217 US20150182027A1 (en) 2013-12-27 2013-12-27 Composite chair

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Citations (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US452686A (en) * 1891-05-19 Spring attachment for chairs
US1527754A (en) * 1923-06-08 1925-02-24 Sylvester J Simon Relaxation chair
US1836630A (en) * 1928-07-16 1931-12-15 Thum Martin Chair
US4541669A (en) * 1982-07-13 1985-09-17 Keiper Recaro Gmbh & Co. Vehicle seat having an adjustable thigh supports
US4856844A (en) * 1984-09-28 1989-08-15 Tachikawa Spring Co., Ltd. Cushioning body of a seat for vehicles
US4944554A (en) * 1987-10-02 1990-07-31 Gross Clifford M Active biomechanical chair
GB2232078A (en) * 1989-04-28 1990-12-05 Okamoto Ind Inc Adjustable vehicle seat
US5338100A (en) * 1992-02-24 1994-08-16 Itt Corporation High strength automotive seat frame and method
US5597203A (en) * 1994-06-14 1997-01-28 Board Of Trustees Operating Michigan State University Seat with biomechanical articulation
US5681084A (en) * 1994-10-20 1997-10-28 Aprica Kassai Kabushikikaisha Child seat apparatus
US6619747B2 (en) * 2001-04-25 2003-09-16 Kam Ko Torso and forearm supporting device for chairs and workstands
US20050104435A1 (en) * 2003-11-18 2005-05-19 Kerr Corporation Task chair
US7429080B2 (en) * 2003-04-03 2008-09-30 Walker Brock M Seat with adjustable support system
US7469963B2 (en) * 2002-11-08 2008-12-30 Rutty John G Back support for seat
US7478879B2 (en) * 2003-11-27 2009-01-20 Garry Robinson Seat with dual independently adjustable supports
US20090152916A1 (en) * 2004-05-28 2009-06-18 Fang Lin Seat subportion adjustable in relative height and/or angle and backrest adjustable in shape
US20100140999A1 (en) * 2008-12-09 2010-06-10 Burkley U Kladde Aircraft seat, method of operation and method of construction of same
US20110101748A1 (en) * 2009-10-13 2011-05-05 Goetz Mark W Ergonomic Adjustable Chair Mechanisms
US20110233979A1 (en) * 2008-12-19 2011-09-29 Chairo Co., Ltd. Chair with separate and interconnecting type lumbar and thoracic supports
US8226165B2 (en) * 2006-06-13 2012-07-24 Ts Tech Co., Ltd Vehicle seat
US8366194B2 (en) * 2008-02-18 2013-02-05 Toyota Boshoku Kabushiki Kaisha Vehicle seats
US8393681B2 (en) * 2006-06-23 2013-03-12 Johnson Controls Gmbh Vehicle seat having an anti-submarining device and method
US8408646B2 (en) * 2010-04-08 2013-04-02 Ford Global Technologies, Llc Seat cushion extension mechanism
US8480168B2 (en) * 2007-08-21 2013-07-09 Ethos Surgical, Llc Operating support for surgeons
US20140035340A1 (en) * 2010-11-24 2014-02-06 Everett Sollars Power disc style seat recliner
US20140062153A1 (en) * 2012-09-06 2014-03-06 James E. Grove Chair with integral pivoting lumbar and seat cushion portions
US20140110983A1 (en) * 2011-06-08 2014-04-24 Haworth, Inc. Seat, in particular an office chair
US20140239688A1 (en) * 2010-02-08 2014-08-28 Sava Cvek Mobile Task Chair and Mobile Task Chair Control Mechanism with Adjustment Capabilities and Visual Setting Indicators

Patent Citations (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US452686A (en) * 1891-05-19 Spring attachment for chairs
US1527754A (en) * 1923-06-08 1925-02-24 Sylvester J Simon Relaxation chair
US1836630A (en) * 1928-07-16 1931-12-15 Thum Martin Chair
US4541669A (en) * 1982-07-13 1985-09-17 Keiper Recaro Gmbh & Co. Vehicle seat having an adjustable thigh supports
US4856844A (en) * 1984-09-28 1989-08-15 Tachikawa Spring Co., Ltd. Cushioning body of a seat for vehicles
US4944554A (en) * 1987-10-02 1990-07-31 Gross Clifford M Active biomechanical chair
GB2232078A (en) * 1989-04-28 1990-12-05 Okamoto Ind Inc Adjustable vehicle seat
US5338100A (en) * 1992-02-24 1994-08-16 Itt Corporation High strength automotive seat frame and method
US5597203A (en) * 1994-06-14 1997-01-28 Board Of Trustees Operating Michigan State University Seat with biomechanical articulation
US5681084A (en) * 1994-10-20 1997-10-28 Aprica Kassai Kabushikikaisha Child seat apparatus
US6619747B2 (en) * 2001-04-25 2003-09-16 Kam Ko Torso and forearm supporting device for chairs and workstands
US7469963B2 (en) * 2002-11-08 2008-12-30 Rutty John G Back support for seat
US7429080B2 (en) * 2003-04-03 2008-09-30 Walker Brock M Seat with adjustable support system
US20050104435A1 (en) * 2003-11-18 2005-05-19 Kerr Corporation Task chair
US7478879B2 (en) * 2003-11-27 2009-01-20 Garry Robinson Seat with dual independently adjustable supports
US20090152916A1 (en) * 2004-05-28 2009-06-18 Fang Lin Seat subportion adjustable in relative height and/or angle and backrest adjustable in shape
US8226165B2 (en) * 2006-06-13 2012-07-24 Ts Tech Co., Ltd Vehicle seat
US8393681B2 (en) * 2006-06-23 2013-03-12 Johnson Controls Gmbh Vehicle seat having an anti-submarining device and method
US8480168B2 (en) * 2007-08-21 2013-07-09 Ethos Surgical, Llc Operating support for surgeons
US8366194B2 (en) * 2008-02-18 2013-02-05 Toyota Boshoku Kabushiki Kaisha Vehicle seats
US20100140999A1 (en) * 2008-12-09 2010-06-10 Burkley U Kladde Aircraft seat, method of operation and method of construction of same
US20110233979A1 (en) * 2008-12-19 2011-09-29 Chairo Co., Ltd. Chair with separate and interconnecting type lumbar and thoracic supports
US20110101748A1 (en) * 2009-10-13 2011-05-05 Goetz Mark W Ergonomic Adjustable Chair Mechanisms
US20140239688A1 (en) * 2010-02-08 2014-08-28 Sava Cvek Mobile Task Chair and Mobile Task Chair Control Mechanism with Adjustment Capabilities and Visual Setting Indicators
US8408646B2 (en) * 2010-04-08 2013-04-02 Ford Global Technologies, Llc Seat cushion extension mechanism
US20140035340A1 (en) * 2010-11-24 2014-02-06 Everett Sollars Power disc style seat recliner
US20140110983A1 (en) * 2011-06-08 2014-04-24 Haworth, Inc. Seat, in particular an office chair
US20140062153A1 (en) * 2012-09-06 2014-03-06 James E. Grove Chair with integral pivoting lumbar and seat cushion portions

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