CN202211406U

CN202211406U - Seat back and cushion tilting linkage device

Info

Publication number: CN202211406U
Application number: CN2011202540561U
Authority: CN
Inventors: 蔡轩进
Original assignee: ZHONGSHAN SONGLIN FURNITURE CO Ltd
Current assignee: ZHONGSHAN SONGLIN FURNITURE CO Ltd
Priority date: 2011-07-19
Filing date: 2011-07-19
Publication date: 2012-05-09
Anticipated expiration: 2021-07-19

Abstract

The utility model relates to a seat back and cushion tilting linkage device, which comprises a base positioned above chair legs. A cushion and a seat back are arranged on the upper part and at the rear side of the base respectively, wherein a front pivoting-fixing part and a rear pivoting-fixing part are arranged on the front and back of the cushion, and the seatback is arranged on a seat back supporting frame. The lower end of the seat back supporting frame is pivoted and fixed at the rear side of the base, and the slightly-lower end of the seat back supporting frame is provided with a pivoting part pivoted and fixed with the rear pivoting-fixing part of the cushion. Meanwhile, a connecting arm is pivoted and connected between the front pivoting-fixing part of the cushion and a front shaft pivot part of the front side of the base. When the seat back is tilted backward, the cushion can also slightly move backward, so that the upper body and the lower body of a sitter can keep synchronous shifting in the same direction. Meanwhile, the cushion can also slightly sink, so that the legs can get appropriate relaxation, and the function of the whole body being leisurely rest is achieved.

Description

The chair back and cushion reclining linkage

Technical field

The utility model relates to a kind of chair back of chair tool and the reclining linkage between the cushion; Promptly rest on the chair back and backward during reclining as the occupant; This cushion position also can be moved along with retreating a little; And then let and remain at best contact condition between occupant's back and the buttocks, and do not have the sense of discomfort of dislocation friction.

Background technology

The chair back position of general office chair tool all has and can adjust the function that leans on the reclining angle, and the cushion position of taking is except the height of can lift adjustment taking; It is still keeping fixing and is taking posture and can't carry out adjustment further; Promptly when the chair back receded, the cushion position still just remained on original position, so lean on the place that contacts between occupant's back and the chair back; Will take place relative to dislocation move phenomenon; Promptly cause the friction that produces relative displacement between occupant's back and the chair back, even the occupant also can be because of facing upward the change by posture, and cause the slip of its buttocks.

In addition; Like the patent of CN200820008020, it comprises that the front end top place of a base unit establishes one and can supply to take the set pin rod of unit front end and wear the front guide slot of closing, and makes these front end both sides of taking the unit stretch downwards being provided with extension; And both sides, its rear end are tiltedly established a back guide groove again; The two lower ends end that makes a chair back unit and extension pivot and make chair back unit on not only but also wear a rod member admittedly together, and the two ends of rod member are through in the back guide groove of the both sides, rear end of taking the unit; So when chair back unit do must angle the reclining adjustment time; This takes the unit can keep being close to relatively moving before and after doing under the level; Originally purpose be to let the occupant buttocks, back and take the unit and chair back unit between; Can not take place moving and friction, and obtain more comfortable adjustment and dependence relative to what misplace.

But in fact, when above-mentioned chair back unit backward during reclining, when not sliding if want to keep in touch between occupant's back and the chair back; Occupant's the upper part of the body ought to be along with moving backward; And then occupant's the lower part of the body (being buttocks) also should be thereupon displacement is just right backward, but this take the unit and but move forward, let on the contrary occupant's back and the dislocation friction between the chair back serious more beyond; Also fail simultaneously the design of ergonomic; Face upward the purpose of lying even the occupant can reach, but its health also must be voluntarily move a little or treat chair back reclining to institute must angle after, the upper part of the body of taking begins to rest on the chair back with loosening fully; So above-mentioned design does not meet the purpose of original design, fails to let the occupant fully adjust operation with loosening yet.

The utility model content

For the chair back that improves aforementioned chair tool and the continuous action relation between the cushion; Design that can't ergonomic and the problem that moves in the same way; The interlock that the utility model provides between a kind of chair back and the cushion moves design; Let the chair back when carrying out the reclining adjustment, cushion also can move forward and backward thereupon, and makes the occupant can loosen the reclining adjustment of carrying out the chair back of health fully.

The utility model solves the technical scheme that its technical problem adopted: the top of a base and rear side thereof are respectively arranged with a cushion and a chair back; And this chair back is fixed in through a pivot on the chair back support of base rear side and is provided with; And not only at the lower end slightly of this chair back support but also be provided with pin joint part; And the front and back at this cushion back side are respectively equipped with forward and backward pin fixed part; And then let cushion back pin fixed part and chair back support the pin joint part pivot admittedly together, and make again between the set front axle pivot portion in preceding pin fixed part and the base front side of cushion and articulate binding through a link arm.

In the such scheme, the front axle pivot portion of this base place is the pivot hole of establishing a sheathed sleeve, and makes link arm corresponding end place be provided with the axial region that is through in the sleeve, and then locks together by establishing the axial region and the sleeve of a screw with link arm in the base.

The beneficial effect of the utility model is; Link through the pivot joint between above-mentioned base, cushion and the chair back support, let the chair back backward during reclining, this cushion also can be along with moving a little backward; And then let and keep synchronously and displacement in the same way between occupant's the upper part of the body and the lower part of the body; Do not have the uncomfortable sensation of friction, maybe need not move necessity of health adjustment position, and occupant's health also can sink slightly, and then its shank can suitably be loosened.

Description of drawings

For further specifying the technology contents of the utility model, below in conjunction with accompanying drawing and embodiment the utility model is further specified, wherein:

Fig. 1 is the schematic perspective view of the utility model.

Fig. 2 is the perspective exploded view of the utility model.

Fig. 3 is the side view of the utility model.

Fig. 4 is the A-A place local section sketch map of Fig. 3.

Fig. 5 is the interlock sketch map between reclining of the utility model chair back and the cushion.

The specific embodiment

See also Fig. 1, shown in Figure 2; The utility model is to establish one in order to support to be provided with the base 1 of the cushion 2 and the chair back 3 on comprising a chair pin; And this base 1 mainly is to comprise that its forward and backward front axle pivot portion 11 that is respectively equipped with (does not disclose among the figure with rear axle pivot portion fully; But it promptly is positioned at the lower end of chair back support 31, with base 1 pivot together position admittedly), pin fixed part 21 and back pin fixed part 22 before the front side, the back side of this cushion 2 respectively is provided with the rear side both sides in addition; And this chair back 3 is to be installed on the aforesaid chair back support 31; Again the lower end of this chair back support 31 then as aforementioned be the both sides place that pivot is fixed in base 1 rear side, make the slightly lower end both sides place of this chair back support 31 not only but also respectively be provided with a pin joint part 32 simultaneously, promptly let back pin fixed part 22 pivots of cushion 2 solid on this pin joint part 32; And the upper end pivot of establishing a link arm 4 again is fixed on the preceding pin fixed part 21 of cushion 2, and the lower end of link arm 4 then is front axle pivot portion 11 places that pivot is fixed in base 1.

Please cooperate Fig. 3 and shown in Figure 4 again; The front axle pivot portion 11 of aforesaid base 1 is the solid hole of a pivot; And a sleeve 51 is set in this hole, the corresponding position of link arm 4 then is convexly equipped with an axial region 41, then through a washer sets 53 and a screw 52; Lock together together with sleeve 51 by the axial region 41 of base 1 inboard, and then let link arm 4 be able to swing freely on preceding hinge portion 11 itself and link arm 4.

Therefore, please cooperate again shown in Figure 5, when occupant's leaning on back on the chair back 3 and backward during reclining; Because the front end of cushion 2 is to articulate the place, front side that is linked to base 1 through link arm 4, the rear end of cushion 2 then be with the contiguous lower end pivot of chair back support 31 admittedly together, let the cushion 2 not only can be mobile a little backward thereupon; Also can remain on simultaneously and take under the horizontal state; Though and then let upper part of the body displacement of occupant along with the hypsokinesis of the chair back 3, its buttocks is also because of the back mobile work of cushion 2, lets keep between occupant's the upper part of the body and the lower part of the body and the moving of association's balance; So making the occupant loosen fully rests on the chair back capapie; And carry out the adjustment of reclining simultaneously, and need not move or adjust any position of health again, can accomplish must the action of reclining adjustment; Let cushion 2 also can descend a little simultaneously, let occupant's health sink slightly, make occupant's shank more to loosen, and then make occupant's whole body more releive loosening.

Claims

1. the chair back and cushion reclining linkage is characterized in that, comprise that the top of a base is provided with a cushion; The rear side of base then is provided with a chair back; And make this chair back be installed on the chair back support, wherein the lower ending pivot of this chair back support is fixed in the rear side place of base, and is provided with pin joint part again at the lower end slightly of chair back support; Be respectively equipped with forward and backward pin fixed part before and after the back side of this cushion in addition; Make cushion back pin fixed part and chair back support the pin joint part pivot admittedly together, and between the set front axle pivot portion in the preceding pin fixed part of cushion and base front side, the two ends through a link arm articulate and link together.

2. the chair back according to claim 1 and cushion reclining linkage; It is characterized in that; The front axle pivot portion place of this base establishes a pivot hole and wears a sleeve; And make link arm corresponding end place be provided with an axial region and be through in the sleeve, by establishing a screws in the base on the axial region of link arm, link arm and sleeve are combined then.