CN103211433B - A kind of mechanism of adjustable seat back angularity - Google Patents
A kind of mechanism of adjustable seat back angularity Download PDFInfo
- Publication number
- CN103211433B CN103211433B CN201310019837.6A CN201310019837A CN103211433B CN 103211433 B CN103211433 B CN 103211433B CN 201310019837 A CN201310019837 A CN 201310019837A CN 103211433 B CN103211433 B CN 103211433B
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- China
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- top board
- seat back
- conical gear
- horizontal
- arc
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Abstract
The invention discloses a kind of mechanism of adjustable seat back angularity, comprise a seat back frame, a bracing frame, a two reverse acting spiral to screw rod, two groups of isosceles triangle curve supporting mechanisms, an arc-shaped top board, two upper conical gear screw rods, a horizontal bevel pinion shaft, two upper conical gear, two horizontal conical gears, four groups of spring pasters etc., horizontal bevel pinion shaft rotarily drives top board and moves up and down, and realizes longitudinal chair back angularity and regulates; Two reverse acting spiral rotarily drives top board to screw rod and seesaws, and realizes horizontal chair back angularity and regulates; When top board is stressed, spring paster is out of shape, and makes top board have certain degree of flexibility.The present invention meets the requirement of ergonomics, can alleviate the harm of sitting to human body.
Description
Technical field
the present invention relates to seat regulator field, be specially a kind of mechanism of adjustable seat back angularity.
Background technology
In order to adapt to the different demand of various crowd, in recent years, the Improvement and development of seat is very rapid, also the concept of ergonomics is added during some seat design to a certain extent, but they have certain limitation, be only applicable to specific use occasion, and seating product in the market, the chair back is mostly fixing shape, have ignored healthy key element.Such as massage armchair, it is only applicable to the elderly, and the chair back does not have adjustability; The and for example Multi-Layer bionics seat of Nissan sounds of nature automobile employing of new generation, seat insert hardness and shape adopt simulation of human body design, body access areas and lifting surface area are maximized, and promoting the sense of seat parcel and soft suitable sense, driver's seat built-in adjustable top waist device, supports waist, alleviate lumbar fatigue, but this seat is only applicable to the crowd of specific height, and due to the price of costliness, what it can not be general is applied to daily life.
At present, market also exists a lot of seat design and production company, and there is multiple chair type, as massage armchair, office chair, vehicle-mounted seat, aero seat etc.The vehicle-mounted seat that the existing more advanced seat in market has BMW to develop, has memory function, can remember the custom sitting posture of passenger.But domestic market, still based on low side seat, cannot realize various dimensions soft readjustment.The inferior position of existing seat is:
1. can only realize the integrally-regulated of seat back, and the local surface degree that cannot realize on the chair back regulates, and namely cannot carry out various dimensions soft readjustment;
2. the external similar products of part have employed many sensors, and cost is very high, expensive.
The advantage of the present invention in structural design is just the adjustment that can be achieved seat back local surface degree by simple structure and mode of operation.
Summary of the invention
The object of this invention is to provide a kind of mechanism of adjustable seat back angularity, horizontal and vertical adjustment can be carried out to angularity according to different demand, meet ergonomics, to meet different building shape crowd demand or different sitting posture demand, reach and greatly alleviate the object of sitting to the extent of injury of human vertebra.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of mechanism of adjustable seat back angularity, include seat back frame, it is characterized in that: described seat back frame two side frame inwall is respectively arranged with vertical chute, horizontal brace summer is connected with between seat back frame two side frame, brace summer is vertically slidably fitted with conical gear screw rod respectively near end positions, described upper conical gear screw rod top is set to thread segment, bottom is set to smooth shaft and lower slide is arranged on brace summer, horizontal bevel pinion shaft is rotatablely equipped with between seat back frame two side frame below brace summer, horizontal bevel pinion shaft both sides near axle head position respectively elastic conjunction have horizontal conical gear, on two, conical gear screw rod bottom is each passed through brace summer and elastic conjunction has upper conical gear, and upper conical gear engages with the transmission of horizontal conical gear one_to_one corresponding, also include bracing frame, arc-shaped top board and two reverse acting spiral are to screw rod, described arc-shaped top board is arranged in seat back frame, arc-shaped top board is provided with two pin joints, internal thread hole is respectively equipped with near end positions in support frame as described above, and bracing frame to be assemblied on two in conical gear screw flight section by both sides internal thread hole, bracing frame both sides are also slidably fitted with swivel nut pair respectively, often organize swivel nut to being made up of two swivel nuts respectively, two swivel nuts often organizing swivel nut centering are hinged with hinge bar respectively, and the pin joint one_to_one corresponding on arc-shaped top board supplies two groups of swivel nut centering hinge bar rod ends hinged, also tapped through hole is respectively arranged with in four swivel nuts, described pair of reverse acting spiral is laterally arranged in the tapped through hole of four swivel nuts screw rod.
The mechanism of described a kind of adjustable seat back angularity, it is characterized in that: often organize swivel nut centering, to be hinged on two swivel nuts and the hinge bar that rod end is hinged on one of them pin joint of arc-shaped top board jointly forms isosceles triangle curve supporting mechanism by two swivel nuts, respectively.
The mechanism of described a kind of adjustable seat back angularity, it is characterized in that: described arc-shaped top board is formed by connecting by four groups of spring pasters by three pieces of transverse slats, often organize spring paster and be affixed on correspondence position inside and outside arc-shaped top board, and four groups of spring pasters are uniformly distributed.
The mechanism of described a kind of adjustable seat back angularity, is characterized in that: the large end of two horizontal conical gears is relative, oppositely and symmetry is arranged on horizontal bevel pinion shaft both sides.
The invention has the advantages that, can the angularity of adjusting seat back, make it more meet the requirement of ergonomics, alleviate the harm of sitting to human body, raise labour efficiency, promote the comfort level of seat back; And these works only need be regulated by simple knob, can realize the motion of top board, change the angularity of the chair back, simple, workable, there is good practical value.
Accompanying drawing explanation
Fig. 1 is general structure schematic diagram of the present invention.
Fig. 2 is the partial enlarged drawing at arc-shaped top board place of the present invention.
Fig. 3 is angularity lateral adjustments structural representation of the present invention.
Fig. 4 is the longitudinal adjustment structure schematic diagram of angularity of the present invention.
Detailed description of the invention
As shown in Figure 1.A kind of mechanism of adjustable seat back angularity, include seat back frame 1, seat back frame 1 liang of side frame inwall is respectively arranged with vertical chute 2, horizontal brace summer 15 is connected with between seat back frame 1 liang of side frame, brace summer 15 is vertically slidably fitted with conical gear screw rod 11 respectively near end positions, upper conical gear screw rod 11 top is set to thread segment, bottom is set to smooth shaft and lower slide is arranged on brace summer 15, under brace summer 15 sides seat back frame 1 liang of side frame between be rotatablely equipped with horizontal bevel pinion shaft 12, horizontal bevel pinion shaft 12 both sides near axle head position respectively elastic conjunction have horizontal conical gear 14, on two, conical gear screw rod 11 bottom is each passed through brace summer 15 elastic conjunction upper conical gear 13, and upper conical gear 13 engages with the transmission of horizontal conical gear 14 one_to_one corresponding, also include bracing frame 3, arc-shaped top board 8 and two reverse acting spiral are to screw rod 4, arc-shaped top board 8 is arranged in seat back frame 1, arc-shaped top board 8 is provided with two pin joints, internal thread hole is respectively equipped with near end positions in bracing frame 3, and bracing frame 3 is assemblied on the thread segment of conical gear screw rod 11 on two by both sides internal thread hole, bracing frame 3 both sides are also slidably fitted with swivel nut pair respectively, often organize swivel nut to being made up of two swivel nuts 5 respectively, two swivel nuts 5 often organizing swivel nut centering are hinged with hinge bar 6 respectively, and the pin joint one_to_one corresponding on arc-shaped top board 8 supplies two groups of swivel nut centering hinge bar 6 rod ends hinged, also tapped through hole is respectively arranged with in four swivel nuts 5, two reverse acting spiral is laterally arranged in the tapped through hole of four swivel nuts 5 screw rod 4.
Often organize swivel nut centering, to be hinged on two swivel nuts 5 and the hinge bar 6 that rod end is hinged on one of them pin joint of arc-shaped top board 8 jointly forms isosceles triangle curve supporting mechanism 7 by two swivel nuts 5, respectively.
Arc-shaped top board 8 is formed by connecting by four groups of spring pasters 10 by three pieces of transverse slats 9, often organize spring paster 10 and be affixed on correspondence position inside and outside arc-shaped top board 8, and four groups of spring pasters 10 is uniformly distributed.
Two horizontal conical gears 14 greatly end relatively, oppositely and symmetry is arranged on horizontal bevel pinion shaft 12 both sides.
The present invention includes the two reverse acting spiral of a seat back frame 1, bracing frame 3, to upper conical gear 13, two the horizontal conical gears 14 of the upper horizontal bevel pinion shaft of conical gear screw rod 11,12, two of 8, two, screw rod 4, two groups of isosceles triangle curve supporting mechanisms 7, arc-shaped top board etc.; Seat back frame 1 both sides have two chutes 2, and bracing frame 3 can slide up and down in chute 2;
Triangle curve supporting mechanism 7 is hinged to leg-of-mutton connecting rod cover by two swivel nuts 5 and two hinge bars 6; Swivel nut 5 has two holes of axis being parallel, is respectively the square hole that can coordinate with bracing frame 3 and the screwed hole that can coordinate screw rod 4 with two reverse acting spiral;
Bracing frame 3 is square stock, and has swivel nut 5 to block thereon; Arc-shaped top board 8 and two groups of isosceles triangle curve supporting mechanisms 7 use screw hinged, respectively on the both sides of arc-shaped top board 8 concave surface; Arc-shaped top board 8 is formed by connecting by four groups of spring pasters 10 by three pieces of transverse slats 9, often organizes spring paster 10 and is affixed on correspondence position inside and outside arc-shaped top board 8, and be uniformly distributed;
On horizontal bevel pinion shaft 12, interference fit has two horizontal conical gears 14, and two conical gears 14 are held relatively greatly, oppositely install; Two conical gears 14 on horizontal bevel pinion shaft 12 are symmetrically distributed in the two ends of axle, and distance axle head leaves distance;
The bottom of upper conical gear screw rod 11 is smooth shaft, and with upper conical gear 13 interference fit; Upper conical gear 13 on two upper conical gear screw rods 11 engages with two conical gears 14 on horizontal bevel pinion shaft 12 respectively; The threaded portion that has of upper conical gear screw rod 11 is combined with bracing frame 3.
When adjusting seat back horizontal curve is spent, by two reverse acting spiral that turns clockwise to screw rod 4, make two groups of swivel nuts 5 can do move toward one another respectively thereon, make two base angles of isosceles triangle curve supporting mechanism 7 become large, arc-shaped top board 8 jack-up, namely back horizontal curve degree changes;
Reversely rotate two reverse acting spiral to screw rod 4, mechanism kinematic is contrary to motion conditions during screw rod 3 with two reverse acting spiral that turns clockwise.
When adjusting seat back Vertical Curve is spent, by the horizontal bevel pinion shaft 12 that turns clockwise, the upper conical gear 13 of the intermeshing upper conical gear screw rod 11 with horizontal conical gear 14 is thereon rotated, drive and move upward with the bracing frame 3 of threaded engagement at upper conical gear screw rod 11, arc-shaped top board 8 moves, and namely back Vertical Curve degree changes;
Reversely rotate horizontal bevel pinion shaft 12, mechanism kinematic with turn clockwise horizontal bevel pinion shaft 12 time described in motion conditions contrary.
As shown in Figure 2, the mechanism of this adjustable seat back angularity, screw connection portion position is respectively on the both sides of top board concave side, and distance vertical central axis linear distance is the long position of 1/4th plates; In use, when arc-shaped top board is stressed, due to the elasticity of spring paster, top board can do and adjust by a small margin, realizes soft readjustment.
As shown in Figure 3, the mechanism of this adjustable seat back angularity, when it carries out the adjustment of horizontal curve degree, by two reverse acting spiral that turns clockwise to screw rod, two groups of swivel nuts can be done relative motion thereon respectively, make two base angles of isosceles triangle curve supporting mechanism become large, arc-shaped top board jack-up, namely back horizontal curve degree changes; During reverse rotation, mechanism kinematic is contrary to the motion conditions described in during screw rod with two reverse acting spiral that turns clockwise.
As shown in Figure 4, the mechanism of this adjustable seat back angularity, it carries out adjusting seat back Vertical Curve when spending, by the horizontal bevel pinion shaft that turns clockwise, the conical gear of the intermeshing upper conical gear screw rod with conical gear is thereon rotated, drive and move upward at the bracing frame of upper conical gear screw rod and threaded engagement, arc-shaped top board moves, and namely back Vertical Curve degree changes; Reversely rotate horizontal bevel pinion shaft, mechanism kinematic with turn clockwise horizontal bevel pinion shaft time described in motion conditions contrary.
Claims (3)
1. the mechanism of an adjustable seat back angularity, include seat back frame, it is characterized in that: described seat back frame two side frame inwall is respectively arranged with vertical chute, horizontal brace summer is connected with between seat back frame two side frame, brace summer is vertically slidably fitted with conical gear screw rod respectively near end positions, described upper conical gear screw rod top is set to thread segment, bottom is set to smooth shaft and lower slide is arranged on brace summer, horizontal bevel pinion shaft is rotatablely equipped with between seat back frame two side frame below brace summer, horizontal bevel pinion shaft both sides near axle head position respectively elastic conjunction have horizontal conical gear, on two, conical gear screw rod bottom is each passed through brace summer and elastic conjunction has upper conical gear, and upper conical gear engages with the transmission of horizontal conical gear one_to_one corresponding, also include bracing frame, arc-shaped top board and two reverse acting spiral are to screw rod, described arc-shaped top board is arranged in seat back frame, arc-shaped top board is provided with two pin joints, internal thread hole is respectively equipped with near end positions in support frame as described above, and bracing frame to be assemblied on two in conical gear screw flight section by both sides internal thread hole, bracing frame both sides are also slidably fitted with swivel nut pair respectively, often organize swivel nut to being made up of two swivel nuts respectively, two swivel nuts often organizing swivel nut centering are hinged with hinge bar respectively, and the pin joint one_to_one corresponding on arc-shaped top board supplies two groups of swivel nut centering hinge bar rod ends hinged, also tapped through hole is respectively arranged with in four swivel nuts, described pair of reverse acting spiral is laterally arranged in the tapped through hole of four swivel nuts to screw rod,
Often organize swivel nut centering, to be hinged on two swivel nuts and the hinge bar that rod end is hinged on one of them pin joint of arc-shaped top board jointly forms isosceles triangle curve supporting mechanism by two swivel nuts, respectively.
2. the mechanism of a kind of adjustable seat back angularity according to claim 1, it is characterized in that: described arc-shaped top board is formed by connecting by four groups of spring pasters by three pieces of transverse slats, often organize spring paster and be affixed on correspondence position inside and outside arc-shaped top board, and four groups of spring pasters are uniformly distributed.
3. the mechanism of a kind of adjustable seat back angularity according to claim 1, is characterized in that: the large end of two horizontal conical gears is relative, oppositely and symmetry is arranged on horizontal bevel pinion shaft both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310019837.6A CN103211433B (en) | 2013-01-18 | 2013-01-18 | A kind of mechanism of adjustable seat back angularity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310019837.6A CN103211433B (en) | 2013-01-18 | 2013-01-18 | A kind of mechanism of adjustable seat back angularity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103211433A CN103211433A (en) | 2013-07-24 |
| CN103211433B true CN103211433B (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310019837.6A Expired - Fee Related CN103211433B (en) | 2013-01-18 | 2013-01-18 | A kind of mechanism of adjustable seat back angularity |
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| Country | Link |
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| CN (1) | CN103211433B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210611605U (en) | 2019-09-18 | 2020-05-26 | 中山市松林家具有限公司 | Waist rest height adjusting device of chair back |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6158808A (en) * | 1999-03-05 | 2000-12-12 | Margolis; Meg | Fully adjustable lounge chair |
| CN2776753Y (en) * | 2005-03-09 | 2006-05-03 | 年纪存 | Automobile seat having adjustable seaf back |
| CN1847049A (en) * | 2005-04-15 | 2006-10-18 | 格拉默股份公司 | Vehicle seat |
| CN101390691A (en) * | 2007-09-18 | 2009-03-25 | 卢顺接 | Chair, back support for a chair and back support component for a chair |
| CN201245085Y (en) * | 2008-08-11 | 2009-05-27 | 徐健 | Backrest curve and softness adjustable coach seat |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11253271A (en) * | 1998-03-10 | 1999-09-21 | Nissan Motor Co Ltd | Car seat |
-
2013
- 2013-01-18 CN CN201310019837.6A patent/CN103211433B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6158808A (en) * | 1999-03-05 | 2000-12-12 | Margolis; Meg | Fully adjustable lounge chair |
| CN2776753Y (en) * | 2005-03-09 | 2006-05-03 | 年纪存 | Automobile seat having adjustable seaf back |
| CN1847049A (en) * | 2005-04-15 | 2006-10-18 | 格拉默股份公司 | Vehicle seat |
| CN101390691A (en) * | 2007-09-18 | 2009-03-25 | 卢顺接 | Chair, back support for a chair and back support component for a chair |
| CN201245085Y (en) * | 2008-08-11 | 2009-05-27 | 徐健 | Backrest curve and softness adjustable coach seat |
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| Publication number | Publication date |
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| CN103211433A (en) | 2013-07-24 |
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Granted publication date: 20150923 Termination date: 20190118 |