CN203506076U

CN203506076U - Chair structure

Info

Publication number: CN203506076U
Application number: CN201320484401.XU
Authority: CN
Inventors: 林长贞
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-08
Filing date: 2013-08-08
Publication date: 2014-04-02
Anticipated expiration: 2023-08-08

Abstract

The utility model discloses a chair structure comprising a base, a backrest, a connecting frame, a chair seat, an action frame and at least one ejection sheet, wherein pin joint parts are arranged above the base, and a guide rod is arranged on the front side of the base; the connecting frame is arranged on the backrest, and is in pin joint to the pin joint parts of the base; the rear end of the chair seat is in pin joint to the connecting frame; the rear end of the action frame is in pin joint to the connecting frame, a sliding sleeve which is arranged on the guide rod is arranged at the front end of the action frame; two ends of the ejection sheet are respectively in pin joint to the front end of the action frame and the front side of the chair seat; the sliding sleeve is located at the back of the guide rod and the ejection sheet is folded when the backrest is not leaned backwards, while the connecting frame is driven to link the action frame and move the chair seat forwards when the backrest is leaned backwards and simultaneously the ejection sheet is unfolded to trigger a lifting action of the front end of the chair seat. According to the chair structure disclosed by the utility model, the backrest bears major leaning weight, so that the chair structure achieves excellent leaning comfort as well as excellent supporting stability.

Description

A kind of seat structure

Technical field

The utility model relates to a kind of seat structure, mainly refers to that a kind of user can be positioned on the chair back and lies by comfortableness to promote by taking stance adjustment main weight of health when lying by posture, and can have a better stability of strutting system.

Background technology

Known seat has chair back capable of regulating layback design for promoting riding comfort cording, is illustrated in figure 9 one of conventional construction, main tool pedestal 1 ', seat support 2 ', the chair back 3 ', and this pedestal 1 ' top and central authorities set firmly respectively arm-rest frame 11 ', guide rod 12 '; Seat support 2 ' the place ahead arranges the sliding sleeve 21 ' that can overlap guide rod 12 ' again, in seat support 2 ' rear end, articulated section 22 ' is set again; The chair back 3 ' arranges the articulated section 21 ' pivot joint of articulated section 31 ' and seat support 2 ' in bottom again, arm-rest frame 11 ' the rear end pivot joint of articulated section 32 ' and pedestal 1 ' top is set in central authorities again, make to make the chair back 3 ', seat support 2 ' tool angle less take angle, can make again the chair back 3 ' layback, and drive seat support 2 ' to move forward simultaneously, and make sliding sleeve 21 ' movable to guide rod 12 ' anterior position, make can tune to the chair back 3 ', seat support 2 ' tool is lain by angle more greatly.

Yet aforementioned structure when lie by time only by the chair back 3 ', drive reach because of seat support 2 ', this seat support 2 ' front end angle θ 1 that raises up is little, cause lie by time human body most of weight still by seat support 2 ', supported, the more undesirable disappearance of tool comfortableness.

Again another known armchair structure as shown in figure 10, main tool pedestal 4 ', seat support 5 ', the chair back 6 ', and this seat support 5 ' the place ahead arranges leg by 51 ', and in seat support 5 ', spring 52 ' is set and engages with pedestal 4 ', this chair back 6 ' again, seat support 5 ' tool fixed engagement angle, and articulated section 61 ' and pedestal 4 ' pivot joint be set, while making occupant lie the arm-chair back of the body 6 ', can make the chair back 6 ', seat support 5 ' by articulated section 61 ' rotation extension spring 52 ' to limit the chair back 6 ' layback angle, and can the skyrocketing user's of making major part lie and can act on the chair back 6 ' by weight because of the elevation angle theta 2 of seat support 5 ' corresponding ground parallel direction, and can have better lying by comfortableness as similar agravic upset.

Yet previous designs this seat support 5 ' when the chair back 6 ' layback is correspondence beat backward, cause center of gravity to be significantly offset to pedestal 4 ' rear position, cause this whole seat possibility crank and topple over, on this seat support 5 ', raise again angle θ 2 much larger than common people's angle that lies low, still cause the undesirable disappearance of comfortableness.

Utility model content

In order to address the above problem, the utility model provides a kind of user can be positioned on the chair back and lie by comfortableness to promote by taking stance adjustment main weight when lying by posture, and during the chair back layback seat support can corresponding reach with the better stability of strutting system of tool.

The utility model solves the technical scheme that its technical problem adopts:

A seat structure, comprising: a pedestal, is provided with guide rod on pedestal; One chair back device, with pedestal pivot joint; One actuation means, one end is articulated on chair back device, and the other end is set on guide rod by sliding sleeve; One seat support, rear end and chair back device pivot joint, front end and actuation means pivot joint; Actuation means for driving seat support to stretch forward and synchronously driving seat support front end to raise up when chair back device is swung back.

Described chair back device comprises the chair back and connecting frame, and described connecting frame is arranged on the chair back, the articulated section pivot joint of connecting frame and pedestal.

Described actuation means comprises: one makes moving frame, rear end and connecting frame pivot joint, and front end is set on guide rod by sliding sleeve; At least one top holding piece, these top holding piece two ends respectively with do moving frame front end and the pivot joint of seat support the place ahead, and sliding sleeve is positioned at guide rod rear when the chair back is not swung back, and top holding piece does not launch, in chair back when layback, can drive connecting frame interlock to do moving frame and seat support reach again, and the action that can synchronous expansion seat support front end raises up of this top holding piece.

The arranged on left and right sides of described pedestal is provided with guide rod and upright support post, and in two support column tops, the first articulated section is set respectively; The down either side of described connecting frame is provided with the 3rd articulated section, and below, the 3rd articulated section is provided with the 4th articulated section; Two proceeds posterolateral of described seat support arrange the 5th articulated section, and the 3rd articulated section pivot joint of the 5th articulated section and connecting frame, in the 5th the place ahead, articulated section, the 6th articulated section are set again; Two the side lever portions that are equipped with are set up in described start, and these two side lever portions are linked by link rod part, described two side lever portion rears making moving frame are provided with the 7th articulated section, and the 4th articulated section pivot joint of the 7th articulated section and connecting frame, the 8th articulated section and sliding sleeve that can engaged with base guide rod are set in two side lever portion the place aheads again; Described top holding piece is provided with two, and the two ends of these two top holding pieces arrange respectively the 9th articulated section, the tenth articulated section, and the 9th articulated section and the 8th articulated section pivot joint of making moving frame, the 6th articulated section pivot joint of the tenth articulated section and seat support again.

The utility model also comprises that leg leans on, described connecting frame is provided with lower junction surface, this seat support arranges front articulated section in the 6th the place ahead, articulated section again, this leg is by being located at seat support the place ahead again, and by a connecting rod and connecting frame pivot joint, this leg is against a side rear articulated section and seat support articulated section pivot joint is before set again, and the 11 articulated section is set again; Again these connecting rod two ends respectively with connecting frame under the 11 articulated section pivot joint of leaning on of articulated section and leg.

The utility model also comprises two elastic parts, and seat support arranges conjugant in the 6th rear position, articulated section again, again the two ends of these two elastic parts respectively with the 9th articulated section engagement position of conjugant and the top holding piece of seat support.

The utility model also comprises expansion link, and this pedestal below arranges the 12 articulated section that can pivot joint expansion link one end again, and the 14 articulated section that can the pivot joint expansion link other end in the setting of seat support front position.

The described chair back arranges bond post in down either side and bottom center; Connecting frame is located at chair back bottom anterior position again, and connecting frame comprises two side levers, and two side levers belows connect by a lower beam, and these two side levers and lower beam arrange conjugate foramen and engage with the bond post of the chair back again.

The beneficial effects of the utility model are: when doing moving frame reach when the utility model of employing said structure makes chair back layback and then driving top holding piece to launch and hold seat support reach, synchronously raise up, and seat support corresponding ground horizontal direction can be had compared with mitre, the leg that this connecting frame can drivening rod is simultaneously by launching action, thereby user lie by time make most of body wt can be positioned at seat-back position because of the seat support tool angle that raises up more greatly, can have better lying by comfortableness, seat support also reach action except raising up while swinging back because of the chair back again, thereby act on before pedestal, the weight of rear side can more can not toppled over, can have better stability of strutting system and a security effect, can tensile elasticity assembly when moving frame reach is done in simultaneously chair back backward wing order, and can cushion chair back layback strength with tool moving smooth and easy and security compared with fine piece of writing by elastic parts, and user's wish makes the chair back not reply while swinging back state can be convenient to make the action of chair back reverse reverting by the elastic-restoring force of elastic parts.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further illustrated:

Fig. 1 is the first embodiment exploded view of the present utility model;

Fig. 2 is the first embodiment chair back of the present utility model combinations of states figure that do not swing back;

Fig. 3 is the first embodiment chair back of the present utility model side view of the state of not swinging back;

Fig. 4 is the first embodiment chair back layback state stereogram of the present utility model;

Fig. 5 is the first embodiment chair back layback side view of the state of the present utility model;

Fig. 6 is the second embodiment exploded view of the present utility model;

Fig. 7 is the second embodiment chair back of the present utility model side view while not swinging back;

Side view when Fig. 8 is the second embodiment chair back layback of the present utility model;

Fig. 9 is known armchair structure schematic diagram;

Figure 10 is known another armchair structure schematic diagram.

Number in the figure explanation:

1 pedestal 11 support column 12 first articulated sections

13 guide rod 14 arm-rest frame 15 the 12 articulated sections

2 chair back 21 bond post 3 connecting frames

31 side lever 311 conjugate foramen 32 lower beams

321 the 3rd articulated section, conjugate foramen 33 second articulated sections 34

35 the 4th 36Xia articulated section, articulated section 4 seat supports

41 the 5th the 6th 43Qian articulated section, articulated section, articulated sections 42

Moving frame is made in 44 conjugant 45 the 14 articulated sections 5

51 side lever portion 52 link rod parts 53 the 7th articulated sections

54 the 8th articulated section 55 sliding sleeve 6 top holding pieces

61 the 9th articulated section 62 the tenth articulated section 7 legs lean on

71 the 11 articulated section, the rear articulated sections 73 of connecting rod 72

8 elastic parts 9 expansion links

1 ' block set 11 ' arm-rest frame 12 ' guide rod

2 ' seat support 21 ' sliding sleeve 22 ' articulated section

3 ' the chair back 31 ' articulated section 4 ' pedestal

5 ' seat support 51 ' leg is by the 6 ' chair back

61 ' articulated section.

The specific embodiment

With reference to Fig. 1～Fig. 3, as shown be the first embodiment of the present utility model, specifically comprise that a pedestal 1, a chair back 2, a connecting frame 3, a seat support 4, make moving frame 5, two top holding pieces 6, a leg by 7, two elastic parts 8, and pedestal 1 arranged on left and right sides is provided with upright support post 11, and in two support column 11 tops, the first articulated section 12 is set respectively, below, front side arranges guide rod 13, engage arm-rest frame 14 again, and this arm-rest frame 14 engages in support column 11 tops with guide rod 13 front ends.

The chair back 2 arranges bond post 21 in down either side and bottom center.

Connecting frame 3 is located at the chair back 2 bottom anterior position, comprise two side levers 31, and lower beam 32 is set in two side lever 31 belows connects, this two side lever 31 and lower beam 32 arrange conjugate foramen 311,321 and engage with the bond post 21 of the chair back 2 again, the first articulated section 12 pivot joints of the second articulated section 33 and pedestal 1 are set in two side levers 31 again, in two side lever 31 belows, the 3rd articulated section 34 is set again, and 34 belows, the 3rd articulated section arrange the 4th articulated section 35, in lower beam 32, lower articulated section 36 is set again.

Seat support 4 arranges the 5th articulated section 41 in two proceeds posterolateral, and the 3rd articulated section 34 pivot joints of the 5th articulated section 41 and connecting frame 3, in 41 the place aheads, the 5th articulated section, the 6th articulated section 42 is set again, and in 42 the place aheads, the 6th articulated section, front articulated section 43 is set, in 43 rears, the 6th articulated section, conjugant 44 is set again.

Making moving frame 5 rear ends and front end engages with connecting frame 3 and pedestal 1 guide rod 13 respectively, and this is made moving frame 5 and comprises two side lever portions 51, and two side lever portion 51 by link rod part 52, linked, these two side levers portion, 51 rears arrange the 7th articulated section 53 again, and the 4th articulated section 35 pivot joints of the 7th articulated section 53 and connecting frame 3, the 8th articulated section 54 and sliding sleeve 55 that can engaged with base 1 guide rod 13 are set in two side lever portion 51 the place aheads again.

Two top holding piece 6 two ends respectively with do moving frame 5, seat support 4 pivot joints, these top holding piece 6 two ends arrange respectively the 9th articulated section 61, the tenth articulated section 62 again, and the 9th articulated section 61 and the 8th articulated section 54 pivot joints of making moving frame 5, again the 6th articulated section 42 pivot joints of the tenth articulated section 62 and seat support 4.

Leg is located at seat support 4 the place aheads by 7, and engagement link 71 and connecting frame 3 pivot joints, and makes leg lean on 7 can launch by corresponding seat support 4 foldings, and this leg is by 7 articulated section 43 pivot joints before a side arranges rear articulated section 72 and seat support 4 again; The 11 articulated section 73 is set again; Again these connecting rod 71 two ends respectively with connecting frame 3 under articulated section 36 and leg by 7 the 11 articulated section 73 pivot joints.

Elastic parts 8 two ends respectively with the 9th articulated section 61 engagement position of conjugant 44 and the top holding piece 6 of seat support 4.

The sliding sleeve 55 of making moving frame 5 when the chair back 2 is not swung back after the utility model combination can be positioned at guide rod 13 rear positions, join legs by 7 being collapse state, and top holding piece 6 is deployed condition not.

As shown in Fig. 4 and Fig. 5, adopt the utility model of said structure can drive the first articulated section 12 position pivotables of the corresponding pedestal 1 of connecting frame 3 when the chair back 2 layback, and connecting frame 3 can be driven make moving frame 5 and seat support 4 moves forward and make sliding sleeve 55 be positioned at guide rod 13 anterior position, and because guide rod 13 the place aheads link arm-rest frame 14, can limit sliding sleeve 55 forward pitch from, this does when moving frame 5 reaches can drive top holding piece 6 to launch in vertical direction and hold seat support 4 reach synchronously to raise up again, and seat support 4 corresponding ground horizontal directions can be had compared with mitre θ 3, again this connecting frame 3 can drivening rod 71 and leg by 7, launch action, make user lie by time make most of body wt can be positioned at the chair back 2 positions because of the seat support 4 tools angle that raises up more greatly, can have better lying by comfortableness, seat support 4 also reach action except raising up while swinging back because of the chair back again, thereby act on before pedestal 1, the weight of rear side more can not toppled over, can have better stability of strutting system and a security effect.

When seat support 4 of the present utility model raises up, can engage with guide rod 13 and support seat support 4 front ends simultaneously by top holding piece 6 and sliding sleeve 55, can have a better stability of strutting system, can tensile elasticity assembly 8 when moving frame 5 reach is done in the 2 backward wings orders of the aforementioned chair back again, and can be by the elastic parts 8 buffering chair back 2 layback strength with tool moving smooth and easy and security compared with fine piece of writing, and user's wish make the chair back 2 reply while not swinging back state can be by the elastic-restoring force of elastic parts 8 so that make the chair back 2 reply moving.

Ginseng Fig. 6 and Fig. 7, as shown be the second specific embodiment of the present utility model, itself and the first specific embodiment are roughly the same, difference is also to comprise an expansion link 9, and spring is not set, this pedestal 1 below arranges the 12 articulated section 15 that can pivot joint expansion link 9 one end again, and the 14 articulated section 45 that can pivot joint expansion link 9 other ends in seat support 4 front position settings, this expansion link 9 is by motor interlock again, when being folded, expansion link 9 can locate the chair back 2 state of not swinging back, while making as shown in Figure 8 again expansion link 9 launch, can directly drive seat support 4 reaches, and drive and do moving frame 5 reaches by seat support 4, top holding piece 6 launches, the chair back 2 layback, leg is by 7 synchronous expansion actions, the utility model can be had and lie by comfortable and barycentre steadiness security effect, aforementioned structure can be forced from 2 layback or the foldings of the command of execution chair back by expansion link 9 again, can have a better operation ease.

Based on foregoing description, the utility model can be had the agravic beat comfortableness of a convergence effect when chair back backward wing, and lie by time most of weight act on the chair back, and seat support can corresponding reach and the action that raises up can have compared with fine piece of writing dynamic stability and barycentre steadiness security effect, and this leg of the present utility model also can be had demand effect of the present utility model when not arranging, also can be set to can be with the locking device of guide rod locking (not indicating in figure) with the better positioning function of tool for sliding sleeve of the present utility model again, and previous embodiment is the utility model illustration, not the utility model restriction, all according to the utility model spirit institute for it equivalence change and also should belong in the utility model category.

Claims

1. a seat structure, is characterized in that comprising: a pedestal, is provided with guide rod on pedestal; One chair back device, with pedestal pivot joint; One actuation means, one end is articulated on chair back device, and the other end is set on guide rod by sliding sleeve; One seat support, rear end and chair back device pivot joint, front end and actuation means pivot joint; Actuation means for driving seat support to stretch forward and synchronously driving seat support front end to raise up when chair back device is swung back.

2. a kind of seat structure as claimed in claim 1, is characterized in that: described chair back device comprises the chair back and connecting frame, and described connecting frame is arranged on the chair back, the articulated section pivot joint of connecting frame and pedestal.

3. a kind of seat structure as claimed in claim 2, is characterized in that: described actuation means comprises: one makes moving frame, rear end and connecting frame pivot joint, and front end is set on guide rod by sliding sleeve; At least one top holding piece, these top holding piece two ends respectively with do moving frame front end and the pivot joint of seat support the place ahead, and sliding sleeve is positioned at guide rod rear when the chair back is not swung back, and top holding piece does not launch, in chair back when layback, can drive connecting frame interlock to do moving frame and seat support reach again, and the action that can synchronous expansion seat support front end raises up of this top holding piece.

4. a kind of seat structure as claimed in claim 3, is characterized in that: the arranged on left and right sides of described pedestal is provided with guide rod and upright support post, and in two support column tops, the first articulated section is set respectively; The down either side of described connecting frame is provided with the 3rd articulated section, and below, the 3rd articulated section is provided with the 4th articulated section; Two proceeds posterolateral of described seat support arrange the 5th articulated section, and the 3rd articulated section pivot joint of the 5th articulated section and connecting frame, in the 5th the place ahead, articulated section, the 6th articulated section are set again; Two the side lever portions that are equipped with are set up in described start, and these two side lever portions are linked by link rod part, described two side lever portion rears making moving frame are provided with the 7th articulated section, and the 4th articulated section pivot joint of the 7th articulated section and connecting frame, the 8th articulated section and sliding sleeve that can engaged with base guide rod are set in two side lever portion the place aheads again; Described top holding piece is provided with two, and the two ends of these two top holding pieces arrange respectively the 9th articulated section, the tenth articulated section, and the 9th articulated section and the 8th articulated section pivot joint of making moving frame, the 6th articulated section pivot joint of the tenth articulated section and seat support again.

5. a kind of seat structure as claimed in claim 4, it is characterized in that: it also comprises that leg leans on, described connecting frame is provided with lower junction surface, this seat support arranges front articulated section in the 6th the place ahead, articulated section again, this leg is by being located at seat support the place ahead again, and by a connecting rod and connecting frame pivot joint, this leg is against a side rear articulated section and seat support articulated section pivot joint is before set again, and the 11 articulated section is set again; Again these connecting rod two ends respectively with connecting frame under the 11 articulated section pivot joint of leaning on of articulated section and leg.

6. a kind of seat structure as described in claim 4 or 5, it is characterized in that: it also comprises two elastic parts, seat support arranges conjugant in the 6th rear position, articulated section again, again the two ends of these two elastic parts respectively with the 9th articulated section engagement position of conjugant and the top holding piece of seat support.

7. a kind of seat structure as described in claim 4 or 5, it is characterized in that: it also comprises expansion link, this pedestal below arranges the 12 articulated section that can pivot joint expansion link one end again, and the 14 articulated section that can the pivot joint expansion link other end in the setting of seat support front position.

8. a kind of seat structure as described in claim 4 or 5, is characterized in that: the described chair back arranges bond post in down either side and bottom center; Connecting frame is located at chair back bottom anterior position again, and connecting frame comprises two side levers, and two side levers belows connect by a lower beam, and these two side levers and lower beam arrange conjugate foramen and engage with the bond post of the chair back again.