CN102984969B - Chair - Google Patents

Chair Download PDF

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Publication number
CN102984969B
CN102984969B CN201280001701.6A CN201280001701A CN102984969B CN 102984969 B CN102984969 B CN 102984969B CN 201280001701 A CN201280001701 A CN 201280001701A CN 102984969 B CN102984969 B CN 102984969B
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CN
China
Prior art keywords
framework
mentioned
along
chair
seat portion
Prior art date
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Application number
CN201280001701.6A
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Chinese (zh)
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CN102984969A (en
Inventor
石田大介
神谷成昭
铃木健太郎
长谷田未弦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KARIMOKU FURNITURE Inc
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KARIMOKU FURNITURE Inc
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Publication of CN102984969A publication Critical patent/CN102984969A/en
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Classifications

    • 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
    • A47C1/031Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03205Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination
    • 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
    • A47C1/031Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • 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
    • A47C1/031Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/036Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a head-rest
    • 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
    • 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

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Chairs Characterized By Structure (AREA)

Abstract

Chair (1), when back being erected and falling, in order to the changing of the relative positions of the back and backrest that reduce the person of taking a seat, be set as back framework (8) the rotatably joint seat portion framework (10) that can erect and fall, along with this back framework (8) falls down, seat portion framework (10) moves forward, and along with back framework (8) erects, seat portion framework (10) moves towards the rear, wherein, back framework (8) has a pair side frame (8a, 8b), being provided with can along side frame (8a, 8b) the slip framework (15) of movement, at slip framework (15), back buffer unit is set, present portion's framework (10) arranges portion's buffer unit, along with back framework (8) falls down, slip framework (15) moves towards direction, seat portion relative to back framework (8), along with back framework (8) erects, slip framework (15) moves relative to the rightabout of back framework (8) towards seat portion, fall down and diminish along with back framework (8) in gap between back buffer unit and seat portion buffer unit, along with back framework (8) erects and becomes large.

Description

Chair
Technical field
The present invention relates to chair.
Background technology
Known a kind of chair 110 before, as shown in Figure 18 ~ Figure 20, chair 110 has back framework 102, this back framework 102 can rotate towards the fore-and-aft direction of chair by the fulcrum 101 being fixed on chair rear portion, the lower end of this back framework 102 can be connected by rotating shaft 108 to front-rear direction rotatably with the rear end of seat portion framework 103, back buffer unit and epidermis parts etc. are arranged on above-mentioned back framework 102 as backrest 104, tube base portion buffer unit and epidermis parts etc. are arranged on above-mentioned seat portion framework 103 as seat support 105, can centered by above-mentioned fulcrum 101, above-mentioned backrest 104 be erected and fall (for example, see patent document 1, 2).
At first technical literature
Patent document
Patent document 1: No. 3618443rd, Japan Patent
Patent document 2: No. 3914020th, Japan Patent
Summary of the invention
The problem that invention will solve
Above-mentioned chair 110 before, as shown in figure 18, under the state erected by backrest 104, the upper surface rear portion 111 of this seat support 105 contacts at contact G place with the front surface bottom 112 of backrest 104.
But, top due to present portion framework 103 arranges portion's buffer unit, form seat support 105, at the front surface of back framework 102, back buffer unit is set, form backrest 104, so, above-mentioned contact G, compare the center of the rotating shaft 108 of portion's framework 103 and back framework 102, be more positioned at front upper.
Therefore, from the state that the backrest 104 of Figure 18 erects, when being fallen towards the rear at leisure by backrest 104 as shown in Figure 19,20, the upper surface rear portion 111 of seat support 105 gradually separated with the front surface bottom 112 of backrest 104, and its gap increases gradually.
Like this, the person of taking a seat 121 is landed on the chair 110 that backrest 104 is raised state, and under the state of against backrest 104, when backrest 104 is lodged, the upper surface rear portion 111 of seat support 105 gradually separates with the front surface bottom 112 of backrest 104.Like this, under the state that backrest 104 erects, be arranged in the head of the person of taking a seat 121 of position shown in Figure 20 dotted line, under the state that backrest 104 has lodged, move to the position shown in chain-dotted line of Figure 20.So there is following problem: when being fallen by backrest 104, the upper part of the body of the person of taking a seat 121 moves downward relative to backrest 104, the upper clothing of the person of taking a seat 121 is caused to drag upward thus.
In addition, when the erecting and fell of backrest 104, the clothes of the person of taking a seat 120 and the epidermis of backrest 104 rub and rub, therefore have the worry of the epidermal pain of backrest 104.
For this reason, the object of this invention is to provide the chair eliminating the problems referred to above.
Solve the technical scheme of problem
In order to solve above-mentioned problem, chair of the present invention, be linked with portion's framework revolvably being set as on the back framework that can erect and fall, along with above-mentioned back framework falls down, above-mentioned seat portion framework moves forward, and along with above-mentioned back framework erects, above-mentioned seat portion framework moves towards the rear, it is characterized in that
Above-mentioned back framework has a pair side frame, is provided with and along the slip framework of this side frame movement, this slip framework can be provided with back buffer unit, above-mentioned seat portion framework is provided with portion's buffer unit,
Along with above-mentioned back framework falls down, above-mentioned slip framework moves towards direction, seat portion relative to this back framework, and along with above-mentioned back framework erects, above-mentioned slip framework moves relative to the rightabout of this back framework towards above-mentioned seat portion,
Falling down along with above-mentioned back framework and diminish in gap between above-mentioned back buffer unit and seat portion buffer unit, erects and become large along with above-mentioned back framework.
Also can be that above-mentioned back framework is arranged in the present invention, the fulcrum by the rear portion being located at chair framework can rotate towards the fore-and-aft direction of chair.
Also can be that above-mentioned slip framework moves relative to back framework by connecting rod in the present invention.
The effect of invention
As the present invention, along with back framework falls down, seat portion framework moves forward, along with back framework erects, seat portion framework moves towards the rear, in addition, being provided with can along the slip framework of the side frame movement of back framework, this slip framework arranges back buffer unit, present portion framework arranges portion's buffer unit, along with above-mentioned back framework falls down, above-mentioned slip framework moves towards direction, seat portion relative to this back framework, along with above-mentioned back framework erects, above-mentioned slip framework moves relative to the rightabout of this back framework towards above-mentioned seat portion, thus, with along with being fallen by backrest 104, the front surface bottom 112 of the upper surface rear portion 111 of seat support 105 and backrest 104 separated, the chair 110 of above-mentioned prior art on the contrary, fall down along with above-mentioned back framework and diminish in gap between above-mentioned back buffer unit and seat portion buffer unit, erect along with above-mentioned back framework and become large.
Like this, user, under the state of against back of the present invention, even if erected by backrest and fell, also can prevent clothes to be moved because of backrest, need not arrange clothes or drop back into one's seat, cosily can use chair.
Accompanying drawing explanation
Fig. 1 is the stereogram of the backrest raised state of the chair representing the embodiment of the present invention 1, for ease of illustrating, representing frame section, eliminating buffer unit, epidermis parts.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the front view of Fig. 1.
Fig. 4 is the top view of Fig. 1.
Fig. 5 is the E-E line sectional view in Fig. 4.
Fig. 6 is the sectional view of the state making back framework lodging from the state of Fig. 5.
Fig. 7 is the sectional view of the state making back framework lodging from the state of Fig. 6 further.
Fig. 8 is the F-F line sectional view in Fig. 5.
Fig. 9 is the E-E line sectional view of the state of Fig. 5, represents in the embodiment of the present invention 1, the back buffer unit of chair and the relation of seat portion buffer unit.
Figure 10 is the E-E line sectional view of the state of being fallen by backrest from the state of Fig. 9, in addition, illustrates that pillow holder is decided to be the state of Fig. 9.
Figure 11 is the E-E line sectional view of the state of being fallen further by backrest from the state of Figure 10, in addition, illustrates that pillow holder is decided to be the state of Fig. 9.
Figure 12 is the side view of the backrest raised state of the chair representing the embodiment of the present invention 2, for ease of illustrating, representing frame section, eliminating buffer unit, epidermis parts.
Figure 13 is the side view of the state of being fallen by backrest from the state of Figure 12.
Figure 14 is the side view of the state of being fallen by backrest further from the state of Figure 13.
Figure 15 is the side view of the backrest raised state of the chair representing the embodiment of the present invention 3, for ease of illustrating, representing frame section, eliminating buffer unit, epidermis parts.
Figure 16 is the side view of the state of being fallen by backrest from the state of Figure 15.
Figure 17 is the side view of the state of being fallen by backrest further from the state of Figure 16.
Figure 18 is the side view of the backrest of the chair representing prior art and the relation of seat support.
Figure 19 is the side view of the state of being fallen by backrest from the state of Figure 18.
Figure 20 is the side view of the state of being fallen by backrest further from the state of Figure 19.
Detailed description of the invention
Below, by the embodiment shown in Fig. 1 to Figure 17, illustrate and implement embodiments of the present invention.
Embodiment 1
Fig. 1 to Figure 11 represents embodiment 1.
The chair 1 of the embodiment of the present invention 1, as shown in figures 1-4, has pedestal 2.This pedestal 2 is provided with turntable 3, and turntable 3, using the above-below direction of pedestal (vertical direction) as rotating shaft, can rotate relative to this pedestal 2.On this turntable 3, be fixed wtih chair framework 4.In explanation below, the opposition side of the seat side of chair 1, i.e. backrest 28, as front A; Backrest 28 side, as rear B; The left side in Fig. 3, as left C, using right side as right D.
Above-mentioned chair framework 4, as shown in figures 1-4, have two side frame 4a, 4b and be erected at the lower framework 4c between this two side frames 4a, 4b lower end, two side frame 4a, 4b and lower framework 4c form as one.In the lower central of above-mentioned lower framework 4c, be fixed wtih above-mentioned turntable 3, this turntable 3, as shown in Figure 2, be formed as tilting downwards towards rear B along with from front A.At the rear portion of this turntable 3, be provided with along the vertical direction the base portion 3a of the cylindrical shape that (vertical direction) erects.This base portion 3a is rotatably connected to above-mentioned pedestal 2.
In the upper end of two side frame 4a, 4b, along front and back (A-B) direction of chair 1, being fixed wtih the parts forming ancon, is the elbow framework 5,5 of tabular in the present embodiment.
At the upper back of above-mentioned two side frame 4a, 4b, as shown in Fig. 5 ~ 7, be fixed wtih from its inner surface inwards direction fulcrum 7,7 that flatly (along C-D direction) is outstanding.On this fulcrum 7, there is the back framework 8 rotated before and after axle energy centered by this fulcrum 7.
This back framework 8, as shown in Figure 1,3, has pair of right and left side frame (hereinafter referred to back side frame) 8a, 8b, and in the present embodiment 1, this back side frame 8a, 8b are made up of the hollow metal tubulation of cylindrical shape.It is orthogonal with left and right (C-D) direction of chair 1 that these two backs side frame 8a, 8b are arranged to its direction of principal axis.In addition, above-mentioned fulcrum 7,7, run through the direction of principal axis pars intermedia of above-mentioned each back side frame 8a, 8b, back side frame 8a, 8b can rotate towards front and back centered by this fulcrum 7,7.Between the top of above-mentioned two backs side frame 8a, 8b, set up connecting rod 8c.
In the bottom of above-mentioned two backs side frame 8a, 8b, as shown in Figure 1, the seat portion framework 10 that can rotate towards front and back (A-B) direction is connected to.This framework 10 has pair of right and left side frame (hereinafter referred to seat portion side frame) 10a, 10b, and in the present embodiment 1, this side frame 10a, 10b are made up of the hollow metal tubulation of cylindrical shape.This side frame 10a, 10b are arranged to front and back (A-B) direction that its direction of principal axis is positioned at chair 1.Between the leading section of above-mentioned two seat portions side frame 10a, 10b, set up frame 10c before seat portion, between the rearward end of two seat portions side frame 10a, 10b, set up seat portion after-frame 10d.In the both sides of this after-frame 10d, as shown in Figure 1, be provided with from seat portion after-frame 10d B direction is outstanding brace 10e, 10e backwards, the bottom of above-mentioned two backs side frame 8a, 8b, centered by the connecting axle 10f be horizontally disposed with along left and right (CD) direction, can be connected on this each brace 10e, 10e front and back rotatably.
At the inner surface of two side frame 4a, 4b of above-mentioned chair framework 4, as shown in Fig. 1,5 ~ 7, be provided with portion's guide member 11,11, this guide member 11, as shown in Fig. 5 ~ 7, be formed as the bending along with the past A direction slowly declines towards rear B direction.On this guide member 11,11, have and can accept parts 12,12 along the guiding of this guide member 11,11 movement.The direction of principal axis pars intermedia of above-mentioned two seat portions side frame 10a, 10b, with the seat axle 12a be horizontally disposed with along left and right (C-D) direction, be connected to the inner side that parts 12,12 are accepted in this guiding, seat portion side frame 10a, 10b can rotate towards front and back centered by this axle 12a.Like this, seat portion framework 10 can rotate centered by seat axle 12a, and can along guide member 11 towards movable.
In the upper end of above-mentioned two backs side frame 8a, 8b, be respectively equipped with head guide member 14,14.This each head guide member 14,14 has plate-shaped member 14a, 14a, one end (bottom) of the length direction of this plate-shaped member 14a, 14a, be fixed on two backs side frame 8a, 8b, in the other end (upper end) of the length direction of above-mentioned plate-shaped member 14a, 14a, be provided with pin 14b, 14b.This pin 14b, as shown in Figure 3,4, protruding outside from the outer surface of plate-shaped member 14a towards left and right (C-D) direction.
On above-mentioned two backs side frame 8a, 8b, there is the slip framework 15 that can slide along the direction of principal axis of back side frame 8a, 8b.Above-mentioned slip framework 15, as shown in Fig. 1,5 ~ 7, compares above-mentioned back framework 8, is configured in front A side.Above-mentioned slip framework 15, as shown in Figure 1,3, has pair of right and left slip side frame 15a, 15b and attaching parts 20.In the present embodiment 1, above-mentioned slip side frame 15a, 15b are made up of the hollow metal tubulation of cylindrical shape.The direction of principal axis of this slip side frame 15a, 15b is roughly parallel to above-mentioned back side frame 8a, 8b.
Between the rear side on the top of above-mentioned two slip side frame 15a, 15b, set up connecting rod 17, between the rear side of the bottom of two slip side frame 15a, 15b, set up connecting rod 18.In addition, in the rear B side (back framework 8 side) of the upper and lower of right slip side frame 15a, as shown in Fig. 5 ~ 7, attaching parts 20,20 are fixed wtih with fixed part 20a.In addition, in the rear B side (back framework 8 side) of the upper and lower of left slip side frame 15b, as shown in Fig. 5 ~ 7, also attaching parts 20,20 are fixed wtih with fixed part 20a.Attaching parts 20,20 on the right side of this, relative to right back side frame 8a, can swim embedding along the direction of principal axis up and down of its direction of principal axis, i.e. back framework 8 slidably.In addition, left side attaching parts 20,20, also relative to left back side frame 8b, can swim embedding along its direction of principal axis slidably, and slip framework 15 can slide along the direction of principal axis of above-mentioned two backs side frame 8a, 8b.That is, slip framework 15 can move along the direction of principal axis of back side frame 8a, 8b.
As above-mentioned attaching parts 20, as long as plastics, metal, timber etc. can be configured as the material of solid shape, arbitrary material can be used, in the present embodiment, use polyacetals (POM).
In the rear B side of above-mentioned attaching parts 20, as shown in figures 5-8, be fixed wtih plate 21 behind back, behind slip framework 15 and back, plate 21 is as one, can move along the direction of principal axis of back side frame 8a, 8b.
Plate 21 behind above-mentioned back, is made up of backboard 21a and biside plate 21b, the 21b being located at this backboard 21a both sides.This right plate 21b is located between right slip side frame 15a and the right frame 4a of chair framework 4, and left plate 21b is located between left slip side frame 15b and the left frame 4b of chair framework 4.On above-mentioned biside plate 21b, 21b, define the elongated hole 21c in its table through, the length direction of this elongated hole 21c is the direction of principal axis of back side frame 8a, 8b, and above-mentioned fulcrum 7 runs through this elongated hole 21c.
In the upper end of above-mentioned two slip side frame 15a, 15b, as shown in Fig. 5 ~ 7, be provided with head framework 22.This head framework 22 has pair of right and left head cam 22a, 22a, is located at horizontal head axle 22b, 22b along left and right (C-D) direction of its underpart, is rotatably connected to the upper end of above-mentioned slip side frame 15a, 15b, and head framework 22 can rotate front and back.This head cam 22a, is formed as tabular, defines the guiding groove 23 of surface opening at least within it within it.This guiding groove 23, also can be formed by the through hole penetrating into head cam 22a lateral surface, can also be formed by the kerve that has of the not opening of the lateral surface at head cam 22a.At the rear portion of above-mentioned head cam 22a, be provided with plate 25 after head.
Above-mentioned guiding groove 23, in the present embodiment 1, as shown in Fig. 5 ~ 7, " く " font is formed as continuously by the 1st guiding groove 23a, arc groove 23b and the 2nd guiding groove 23c, B inclination is oblique upward and backward along with the bottom from head cam 22a for 1st guiding groove 23a, arc groove 23b is formed as arc-shaped on the top of the 1st guiding groove 23a, and the 2nd guiding groove 23c is on the top of this arc groove 23b, and along with the below from head cam 22a, A inclination is oblique upward and forward.
In above-mentioned guiding groove 23, swim embedding can along the pin 14b of the above-mentioned back framework 8 of guiding groove 23 movement.
As shown in Fig. 1,5 ~ 7, an end (bottom) of connecting rod 27, by the rotating shaft 27a be horizontally disposed with along left and right (C-D) direction, can be connected to the bottom of above-mentioned two slip side frame 15a, 15b rotatably centered by it towards front and back.The other end (upper end) of above-mentioned connecting rod 27, by the rotating shaft 27b be horizontally disposed with along left and right (C-D) direction, after the top of two side frame 4a, 4b of chair framework 4 being connected to rotatably towards front and back centered by it B side inner surface on.The other end sidespin rotating shaft 27b of connecting rod 27, as shown in Fig. 5,9, when the state that back framework 8 erects, compares end side rotating shaft 27a, is positioned at the top of front A.
Above-mentioned connecting rod 27, is formed as tabular, and its side view is arc, and the central side of its arc is positioned at front side A.In addition, the side view of above-mentioned connecting rod 27, except above-mentioned arc, also can be the arbitrary shapes such as linearity.
Between above-mentioned two slip side frame 15a, 15b and between two head cam 22a, 22a, be provided with the 1st cloth spring (not shown), its both sides are arranged on slip side frame 15a, 15b and head cam 22a, 22a by force application mechanism (not shown).The upper end of the 1st cloth spring, is fixed in connecting rod (not shown), and this connecting rod is located between the upper end of above-mentioned head cam 22a, 22a, and the lower end of the 1st cloth spring, is fixed on the lower connecting rod 18 of slip framework 15.The both sides of above-mentioned 1st cloth spring, by above-mentioned force application mechanism towards slip side frame 15a(15b) direction force.This force application mechanism, uses spring in the present embodiment.
Be located at the front surface of above-mentioned the 1st cloth spring between slip side frame 15a, 15b, back polyurethane part 28a is fixed wtih with bonding agent etc., being located at the front surface of the 1st cloth spring between head cam 22a, 22a, be fixed wtih head polyurethane part 30a with bonding agent etc.
The peripheral part that 1st epidermis parts (not shown) is covered with plate 25 after plate 21 and head behind above-mentioned slip framework 15, back framework 8, the 1st cloth spring, back polyurethane part 28a, head polyurethane part 30a, back is overall.1st epidermis parts, can be fixed in any one behind slip framework 15, back framework 8, the 1st cloth spring, back polyurethane part 28a, head polyurethane part 30a, back after plate 21 and head among plate 25, also can not be fixed on any parts.
Back buffer unit 28b by being located at above-mentioned the 1st cloth spring between slip side frame 15a, 15b and back polyurethane part 28a is formed, but as this back buffer unit 28b, except cloth spring, polyurethane part, also can use arbitrary buffer unit.In addition, backrest 28, is made up of plate 21 and the 1st epidermis parts behind slip framework 15, back framework 8, back buffer unit 28b, back.
Head buffer unit 30b by being located at above-mentioned the 1st cloth spring between head cam 22a, 22a and head polyurethane part 30a is formed, but as this head buffer unit 30b, except cloth spring, polyurethane part, also can use arbitrary buffer unit.In addition, headrest 30, is made up of plate 25 and the 1st epidermis parts after head framework 22, head buffer unit 30b, head.
In addition, on present portion framework 10, be provided with the 2nd cloth spring (not shown), its both sides are separately fixed on portion side frame 10a, 10b, before the fixing present portion, front end of the 2nd cloth spring on frame 10c.In addition, the rearward end of the 2nd cloth spring, by the fixing present portion after-frame 10d of force application mechanism (not shown), the rearward end of above-mentioned 2nd cloth spring, is exerted a force by the rear direction of above-mentioned force application mechanism towards seat portion framework 10.As this force application mechanism, use spring in the present embodiment.
On the top of above-mentioned 2nd cloth spring, be fixed wtih a portion polyurethane part 29a with bonding agent etc.Seat portion buffer unit 29b is made up of the 2nd cloth spring and seat portion polyurethane part 29a, but, as seat portion buffer unit 29b, except cloth spring, polyurethane part, also can use arbitrary buffer unit.
2nd epidermis parts (not shown), the peripheral part being covered with above-mentioned seat portion framework 10 and seat portion buffer unit 29b is overall.2nd epidermis parts can be fixed in any one among present portion framework the 10, the 2nd cloth spring, seat portion polyurethane part 29a, also can not be fixed on any parts.Seat portion 29 is made up of above-mentioned seat portion framework 10, seat portion buffer unit 29b and the 2nd epidermis parts.
Below, the action of chair 1 is described.
As shown in Fig. 5,9, the back framework 8(backrest 28 at chair 1) state that erects, separate between the lower end of back buffer unit 28b and the rear upper surface of seat portion buffer unit 29b, define gap.From the state that the back framework 8 of this chair 1 erects, when by back framework 8, centered by fulcrum 7, B fell towards the rear at leisure, as shown in Fig. 6,10, connecting rod 27 is centered by the rotating shaft 27b of chair framework 4 side, its side by slip framework 15 is rotated forward, meanwhile, the slip framework 15 be connected to rotating shaft 27a, mobile to (direction, seat portion 29) along back side frame 8a, 8b towards lower side.
In addition, in Fig. 9 ~ 11, miscellaneous in order to avoid figure, at back buffer unit 28b, seat portion polyurethane part 29a, head buffer unit 30b, non-hatching.In addition, the relativeness of during in order to represent that backrest 28 lodges, back buffer unit 28b, seat portion polyurethane part 29a and the person of taking a seat 40, in Fig. 9 ~ 11, illustrate head framework 22 and do not erect to front-rear direction and fell, and be fixed as the raised state of Fig. 9.
As mentioned above, slip framework 15 moves, and meanwhile, back buffer unit 28b and the 1st epidermis parts, also gradually move towards the direction of the seat portion buffer unit 29b in seat portion 29, the gap between back buffer unit 28b and seat portion buffer unit 29b narrows gradually.
In addition, along with the lodging gradually of back framework 8, seat portion framework 10 is pushed forward by the bottom of back framework 8, gradually moves towards front upper along seat portion guide member 11.
In addition, head framework 22, owing to being rotatably connected to the upper end of slip framework 15, so as shown in Figure 6, head framework 22 is mobile towards downside (direction, seat portion 29) together with slip framework 15.At this moment, head guide member 14 is relative to head cam 22a(guiding groove 23) (rightabout in seat portion 29) movement relatively upward.That is, sell 14b along with in the 1st guiding groove 23a tilted toward rear B from bottom towards top, gradually move upward.Like this, the axle (axle of the above-below direction of back framework 8) of back side frame 8a, 8b and head framework 22(head cam 22a) front surface between angle [alpha] gradually increase, headrest 30(head framework 22) relative to backrest 28(back framework 8) gradually erect.
Further, when pin 14b is positioned at arc groove 23b central, head framework 22(head cam 22a) front surface and back framework 8 above-below direction axle (axle of back side frame 8a, 8b) between angle [alpha], become maximum (predetermined value).
As shown in Figure 7, when further back framework 8 slowly being fallen, by the rotation of connecting rod 27, slip framework 15 moves towards downside (seat portion 29) direction further, simultaneously, pin 14b in head cam 22a along with from bottom towards top toward front A inclination the 2nd guiding groove 23c in, gradually move upward.Like this, angle [alpha] between the axle of back side frame 8a, 8b and the front surface of head cam 22a reduces gradually, head framework 22(rests the head on 30) relative to back framework 8(backrest 28) gradually lodge towards the rear, as shown in Figure 7, when being lodged at utmost by back framework 8, the angle [alpha] between the axle of back side frame 8a, 8b and the front surface of head cam 22a becomes roughly zero.
In addition, with above-mentioned action on the contrary, as shown in Figure 7, backrest 28(back framework 8 from chair 1) the state that lodges, when back framework 8 is slowly erected, by the rotation in the direction contrary to the above of connecting rod 27, side is mobile to (rightabout in seat portion 29) upward along back side frame 8a, 8b for slip framework 15.Thereupon, erect along with by back framework 8, head framework 22 erects gradually relative to back framework 8, angle [alpha] between the axle of the front surface of head framework 22 and the above-below direction of back framework 8, after becoming predetermined value, when further back framework 8 being erected, along with back framework 8 erects, head framework 22 falls down gradually towards the rear relative to back framework 8, becomes the state shown in Fig. 5.
Namely, back framework 8, as shown in Figure 5, from raised state, to the above-below direction of the front surface of head framework 22 and back framework 8 axle angle [alpha] become maximum, along with back framework 8 lodges, head framework 22 erects relative to back framework 8, and along with back framework 8 erects, head framework 22 lodges relative to back framework 8.
In addition, back framework 8, from the state that above-mentioned angle [alpha] is maximum, to the state that the back framework 8 shown in Fig. 7 lodges, fell along with by back framework 8, head framework 22 lodges relative to back framework 8, erect along with by back framework 8, head framework 22 erects relative to back framework 8.
Due to above-mentioned structure, the chair 1 of the embodiment of the present invention 1 plays following effect, effect.
In the present invention, along with by back framework 8(backrest 28) fell, slip framework 15, be located at back buffer unit 28b on slip framework and the 1st epidermis parts, move towards direction, seat portion 29 together, along with by back framework 8(backrest 28) erect, slip framework 15, back buffer unit 28b and the 1st epidermis parts, the rightabout together towards seat portion 29 moves.Like this, the erecting and fell in action of the backrest 28 of the lodging state of the backrest 28 shown in the raised state of the backrest 28 shown in Fig. 9 and Figure 11, as shown in Fig. 9 ~ 11, the interval (gap) between back buffer unit 28b and seat portion buffer unit 29b changes.In addition, fell towards the rear along with by backrest 28, seat portion 29 moves forward.
It can thus be appreciated that the person of taking a seat 40 is on the chair 1 of backrest 28 raised state, and under the state of against backrest 28, even if lodged by backrest 28 or erect, as shown in figure 11, compared with the Figure 20 in technology before, the amount of movement of the person of taking a seat 40 greatly reduces.What this Figure 11 represented takes a seat in state, the huckle of the person of taking a seat 40 and the junction surface of pelvis, relative to seat portion 29, does not move from the seated position of the person of taking a seat 40 of Fig. 9, the position of the head of the person of taking a seat 40 in backrest 28 raised state shown in Fig. 9 represented by dashed line.From this Figure 11, the back of the person of taking a seat 40 and the position relationship of backrest 28 and Fig. 9 do not have large deviation, clothes can be suppressed to have been dragged toward top by backrest 28 or mobile, even if when backrest 28 is erected and fallen, arrangement clothes, the action dropped back into one's seat also reduce, and can cosily use chair 1.
In addition, when the erecting and fell of backrest 28, the person of taking a seat 40 can be reduced and dawdle with the epidermis of backrest 28, compared with the chair 110 of technology before, the pain of the epidermis of backrest 28 can be reduced.
In addition, back framework 8 was fallen at leisure from raised state, until the angle [alpha] between the axle of the above-below direction of the front surface of head framework 22 and back framework 8 becomes predetermined value, along with by back framework 8(backrest 28) slowly fell, head framework 22(rests the head on 30) relative to back framework 8(backrest 28) gradually erect, like this, the backrest 28 of chair 1 fell by the person of taking a seat 40 slightly, when seeing the television set etc. in front, compare the state shown in Fig. 5,9, headrest 30 erects relative to backrest 28, easily the sight line of the person of taking a seat 40 can be remained on front thus.
In addition, after angle [alpha] between the axle of the front surface of head framework 22 and the above-below direction of back framework 8 becomes predetermined value, along with back framework 8(backrest 28) fall down, head framework 22(rests the head on 30) relative to back framework 8(backrest 28) gradually fall down, like this, the backrest 28 of chair 1 significantly fell by the person of taking a seat 40, when becoming lying posture etc., the neck of the person of taking a seat 40 can not be tired, can obtain comfortable posture.
Embodiment 2
Figure 12 to Figure 14 represents embodiment 2.
In above-described embodiment 1, with a connecting rod 27, two side frame 4a, 4b of the bottom of slip side frame 15a, 15b and chair framework 4 are coupled together, and in the present embodiment 2, it is the connecting rod 31 formed with some connecting rods, two side frame 4a, 4b of the direction of principal axis pars intermedia of slip side frame 15a, 15b and chair framework 4 are coupled together, along with by backrest 28(back framework 8) rearward fall down, slip framework 15 moves towards downside (side, seat portion 29) direction, the gap turn narrow between back buffer unit 28b and seat portion buffer unit 29b.In addition, along with by backrest 28(back framework 8) erect, slip framework 15 moves towards upside (seat portion 29 contrary) direction, and the gap between back buffer unit 28b and seat portion buffer unit 29b becomes large.
Above-mentioned connecting rod 31, as shown in Figure 12 ~ 14, is made up of such 3 connecting rods of the 1st connecting rod 32, the 2nd connecting rod 33 and the 3rd connecting rod 34.
One end (upper end) of above-mentioned 1st connecting rod 32, centered by the rotating shaft 32a be horizontally disposed with along left and right (C-D) direction, the direction of principal axis pars intermedia of slip side frame 15a, 15b is connected to rotatably before and after energy, the other end (lower end) of the 1st connecting rod 32, centered by the rotating shaft 32b be horizontally disposed with along left and right (C-D) direction, before and after energy, be connected to one end (upper end) of the 2nd connecting rod 33 rotatably.The direction of principal axis pars intermedia of the 2nd connecting rod 33, by the position of another side, centered by the connecting axle 33a be horizontally disposed with along left and right (CD) direction, can be connected on back side frame 8a, 8b front and back rotatably.This connecting axle 33a is positioned near the rear portion of fulcrum 7.
The other end (lower end) of above-mentioned 2nd connecting rod 33, centered by the rotating shaft 33b be horizontally disposed with along left and right (C-D) direction, is connected to one end (rear end) of the 3rd connecting rod 34 rotatably before and after energy.The other end (front end) of the 3rd connecting rod 34, centered by the rotating shaft 34a be horizontally disposed with along left and right (C-D) direction, is connected to the rear upper of two side frame 4a, 4b of chair framework 4 rotatably before and after energy.
Other structure, formation are identical with above-described embodiment 1, and its explanation is omitted.
Below, the action of the chair 1 of the 2nd embodiment is described.
As shown in figure 12, from the state that the back framework 8 of chair 1 erects, when slowly rearward being fallen by back framework 8, the lower end side of the 2nd connecting rod 33, as shown in Figure 13,14, centered by the connecting axle 33a near fulcrum 7, towards upper back to rotation.In addition, by the rotation of the 2nd connecting rod 33, the other end rotating shaft 32b of the 1st connecting rod 32 is downward to movement.Like this, as shown in Figure 12 ~ 14, slip side frame 15a, 15b of being connected to the end side rotating shaft 32a of the 1st connecting rod 32, move along back side frame 8a, 8b towards downside (seat portion 29) direction, the gap turn narrow between back buffer unit 28b and seat portion buffer unit 29b.
In addition, contrary to the abovely, as shown in figure 14, from the state of the back framework lodging of chair 1, when being erected by back framework 8, by action contrary to the above, slip framework 15 is along back side frame 8a, 8b, rightabout towards seat portion 29 moves, and the gap between back buffer unit 28b and seat portion buffer unit 29b becomes large.
Other action, identical with above-described embodiment 1, its explanation is omitted.
In the present embodiment 2, also can play the effect same with above-described embodiment 1, effect.
Embodiment 3
Figure 15 to Figure 17 represents embodiment 3.
In above-described embodiment 1, with connecting rod 27, by slip side frame 15a, the bottom of 15b and two side frame 4a of chair framework 4, 4b couples together, and in the present embodiment 3, with connecting rod 41, by slip side frame 15a, the direction of principal axis pars intermedia of 15b and the seat portion side frame 10a of seat portion framework 10, 10b couples together, along with by backrest 28(back framework 8) fell, slip framework 15 is towards side, seat portion 29 to movement, gap between back buffer unit 28b and seat portion buffer unit 29b becomes large, in addition, along with by backrest 28(back framework 8) erect, slip framework 15 moves towards the rightabout in seat portion 29, gap between back buffer unit 28b and seat portion buffer unit 29b becomes large.
Above-mentioned connecting rod 41, as seen in figs. 15-17, is formed by a connecting rod.This connecting rod 41 is formed as tabular, and its side view is arc, and the central side of its arc is positioned at front side A.One end (upper end) of this connecting rod 41, centered by the rotating shaft 41a be horizontally disposed with along left and right (C-D) direction, the direction of principal axis pars intermedia of slip side frame 15a, 15b is connected to rotatably before and after energy, the other end (lower end) of connecting rod 41, centered by the rotating shaft 41b be horizontally disposed with along left and right (C-D) direction, before and after energy, connect the pars intermedia of the portion of being present side frame 10a, 10b rotatably.In addition, the side view of above-mentioned connecting rod 41, except above-mentioned arc, also can be the arbitrary shapes such as linearity.
Other structure, formation are identical with above-described embodiment 1, and its explanation is omitted.
Below, the action of the chair 1 of the present embodiment 3 is described.
As shown in figure 15, from the state that the back framework 8 of chair 1 erects, as shown in Figure 16,17, when slowly rearward being fallen by back framework 8, seat portion framework 10 moved towards front upper gradually along seat portion guide member 11.Thereupon, the other end sidespin rotating shaft 41b be connected to seat portion framework 10 moves on top forward, and connecting rod 41 rotates centered by its two rotating shaft 41a, 41b, and meanwhile, this rotating shaft 41a moves towards downside (seat portion 29) direction.And the slip framework 15 be connected to the rotating shaft 41a of connecting rod 41, moves along back side frame 8a, 8b towards direction, seat portion 29.
In addition, contrary to the abovely, as shown in figure 17, from the state that back framework 8 lodges, when slowly being erected by back framework 8, slip framework 15 is along back side frame 8a, 8b, and the rightabout towards seat portion 29 moves.
Other action, identical with above-described embodiment 1, its explanation is omitted.
In the present embodiment 3, also can play and above-described embodiment 1,2 same effects, effect.
Embodiment 4
In above-described embodiment 1 to 3, back framework 8 is rotated centered by fulcrum 7, by connecting rod 27,31,41, make erecting and fell and correspondingly moving towards the direction of principal axis of back side frame 8a, 8b of slip framework 15 and back framework 8, and in the present embodiment, be that above-mentioned fulcrum 7 is located on slip side frame 15a, 15b, by connecting rod, along with slip framework 15 rearward falls down, make back framework 8 (rightabout in seat portion 29) movement upward.
The fulcrum 7 be fixed on chair framework 4 is connected to the pars intermedia of slip framework 15, slip framework 15 can rotate front and back centered by this fulcrum 7.In addition, slip framework 15 and back framework 8, in the same manner as above-described embodiment 1 to 3, are connected by attaching parts 20, and back framework 8 can slide along the direction of principal axis of slip side frame 15a, 15b.
And, along with slip framework 15 rearward falls down centered by fulcrum 7, by connecting rod, back framework 8 is along direction of principal axis (rightabout in seat portion 29) movement upward of slip side frame 15a, simultaneously, seat portion framework 10 also moves towards the rear relative to the lower end of slip framework 15, the rear end of seat portion framework 10 and the lower end of slip framework 15 gradually close, the gap smaller between back buffer unit 28b and seat portion buffer unit 29b.
In addition, along with slip framework 15 forwards erects centered by fulcrum, by connecting rod, back framework 8 is along direction of principal axis (direction, seat portion 29) movement downward of slip side frame 15a, simultaneously, seat portion framework 10 also moves forward relative to the lower end of slip framework 15, the rear end of seat portion framework 10 and the lower end of slip framework 15 gradually away from.
That is, along with back framework 8 falls down, slip framework 15 moves towards direction, seat portion 29 relative to back framework 8.In addition, along with back framework 8 erects, slip framework 15 moves relative to the rightabout of back framework 8 towards seat portion 29, and the gap between back buffer unit 28b and seat portion buffer unit 29b becomes large.
Other structure, formation are identical with above-described embodiment 1 to 3, and its explanation is omitted
In the present embodiment 4, also can play the effect same with above-described embodiment 1 to 3, effect.
Embodiment 5
In above-described embodiment 1 to 4, slip framework 15 is compared back framework 8 and is positioned at front A, but also slip framework 15 can be compared back framework 8 and be positioned rear B.
Other structure, formation are identical with above-described embodiment 1 to 4, and its explanation is omitted
In the present embodiment 5, also can play the effect same with above-described embodiment 1 to 4, effect.
Description of reference numerals
1 ... chair, 4 ... chair framework, 7 ... fulcrum, 8 ... back framework, 8a, 8b ... back side frame, 10 ... seat portion framework, 15 ... slip framework, 27,31,41 ... connecting rod, 28b ... back buffer unit, 29b ... seat portion buffer unit.

Claims (6)

1. a chair, this chair has chair framework, is set as the back framework that can erect relative to this chair framework and fall and the seat portion framework that can be linked to this back framework at fore-and-aft direction rotatably, along with above-mentioned back framework falls down, above-mentioned seat portion framework moves forward, along with above-mentioned back framework erects, above-mentioned seat portion framework moves towards the rear, it is characterized in that
Above-mentioned back framework has a pair side frame, is provided with and along the slip framework of this side frame movement, this slip framework can be provided with back buffer unit, above-mentioned seat portion framework is provided with portion's buffer unit,
Along with above-mentioned back framework falls down, above-mentioned slip framework moves towards direction, seat portion along above-mentioned side frame relative to this back framework, along with above-mentioned back framework erects, above-mentioned slip framework moves along above-mentioned side frame relative to the rightabout of this back framework towards above-mentioned seat portion
Falling down along with above-mentioned back framework and diminish in gap between above-mentioned back buffer unit and seat portion buffer unit, erects and become large along with above-mentioned back framework,
Above-mentioned chair possesses the connecting rod be made up of 1 parts, is attached at the bottom of above-mentioned slip framework before and after one end energy of this connecting rod rotatably, and the other end of above-mentioned connecting rod can be attached on above-mentioned chair framework in front and back rotatably,
Above-mentioned slip framework moves relative to back framework by above-mentioned connecting rod.
2. chair as claimed in claim 1, is characterized in that, when back framework fell, the other end of above-mentioned connecting rod was positioned at the top of the rotation linking part of above-mentioned seat portion framework and above-mentioned back framework and rear.
3. chair as claimed in claim 1 or 2, it is characterized in that, above-mentioned back framework is arranged to, and the fulcrum by the rear portion being located at chair framework can rotate towards the fore-and-aft direction of chair.
4. a chair, this chair has chair framework, is set as the back framework that can erect relative to this chair framework and fall and the seat portion framework that can be linked to this back framework at fore-and-aft direction rotatably, along with above-mentioned back framework falls down, above-mentioned seat portion framework moves forward, along with above-mentioned back framework erects, above-mentioned seat portion framework moves towards the rear, it is characterized in that
Above-mentioned back framework has a pair side frame, is provided with and along the slip framework of this side frame movement, this slip framework can be provided with back buffer unit, above-mentioned seat portion framework is provided with portion's buffer unit,
Along with above-mentioned back framework falls down, above-mentioned slip framework moves towards direction, seat portion along above-mentioned side frame relative to this back framework, along with above-mentioned back framework erects, above-mentioned slip framework moves along above-mentioned side frame relative to the rightabout of this back framework towards above-mentioned seat portion
Falling down along with above-mentioned back framework and diminish in gap between above-mentioned back buffer unit and seat portion buffer unit, erects and become large along with above-mentioned back framework,
Above-mentioned chair possesses the connecting rod be made up of multiple parts, is attached at the direction of principal axis pars intermedia of above-mentioned slip framework before and after one end energy of this connecting rod rotatably, and the other end of above-mentioned connecting rod can be attached on above-mentioned chair framework in front and back rotatably,
Above-mentioned slip framework moves relative to back framework by above-mentioned connecting rod.
5. chair as claimed in claim 4, is characterized in that, when back framework fell, the other end of above-mentioned connecting rod was positioned at the top of the rotation linking part of above-mentioned seat portion framework and above-mentioned back framework and rear.
6. the chair as described in claim 4 or 5, is characterized in that, above-mentioned back framework is arranged to, and the fulcrum by the rear portion being located at chair framework can rotate towards the fore-and-aft direction of chair.
CN201280001701.6A 2011-01-17 2012-01-16 Chair Active CN102984969B (en)

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JP6455471B2 (en) 2016-03-16 2019-01-23 トヨタ自動車株式会社 Vehicle seat
JP2021106758A (en) * 2019-12-27 2021-07-29 株式会社イトーキ Chair with headrest

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US5150948A (en) * 1989-09-16 1992-09-29 Voelkle Rolf Reclining chair
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CN2912369Y (en) * 2006-06-13 2007-06-20 东钰家具股份有限公司 Silp-moving armchair base
CN101374439A (en) * 2006-07-07 2009-02-25 丸一贩卖株式会社 Reclining chair structure

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Publication number Priority date Publication date Assignee Title
JP2542353Y2 (en) * 1991-06-27 1997-07-23 株式会社タチエス Seat reclining structure
JP3605161B2 (en) * 1994-12-21 2004-12-22 シロキ工業株式会社 Reclining device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5150948A (en) * 1989-09-16 1992-09-29 Voelkle Rolf Reclining chair
CN1074361A (en) * 1991-10-31 1993-07-21 罗尔夫·福尔克尔 Stuhl, insbesondere burodrehstuhl
CN2912369Y (en) * 2006-06-13 2007-06-20 东钰家具股份有限公司 Silp-moving armchair base
CN101374439A (en) * 2006-07-07 2009-02-25 丸一贩卖株式会社 Reclining chair structure

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JP2012147849A (en) 2012-08-09
WO2012099060A1 (en) 2012-07-26
HK1179132A1 (en) 2013-09-27
JP5634890B2 (en) 2014-12-03
SG186738A1 (en) 2013-02-28

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