CN106974460B

CN106974460B - Chair

Info

Publication number: CN106974460B
Application number: CN201710189450.3A
Authority: CN
Inventors: 王郑兴; 王星; 梁彦伟
Original assignee: Henglin Home Furnishings Co Ltd
Current assignee: Henglin Home Furnishings Co Ltd
Priority date: 2017-03-27
Filing date: 2017-03-27
Publication date: 2024-04-09
Anticipated expiration: 2037-03-27
Also published as: CN106974460A

Abstract

The utility model relates to a chair, which comprises a chair underframe, a chair seat and a chair back, wherein the chair underframe is in sliding connection with the chair seat through a first component, a second component is fixedly connected to the chair back, the second component is hinged with the chair seat, and the chair back is in sliding connection with the chair underframe through the second component. When the chair back is reclined, the second component moves together with the chair back, the second component slides with the chair underframe, the position of the chair seat hinged at one end of the second component also changes after the position of the second component changes, and the chair seat is connected with the chair underframe in a sliding way through the first component, so that the second component can drive the chair seat to synchronously move when the chair back is reclined. The utility model has simple structure, can ensure the linkage of the chair back and the chair seat, reduce the friction between the chair back and the back of a human body and enhance the comfort of the chair.

Description

Chair

Technical Field

The utility model relates to a chair, in particular to a chair with a chair back and a chair seat in linkage.

Background

As a living tool which is indispensable to the living and office environment, the chair has higher and higher comfort requirements when being used in the living environment, has obvious lifting requirements on the comfort and operability of the chair even in the office environment on the premise of working efficiency, and generally, when the design of the chair on the traditional chassis structure is limited, the chair back of a user cannot simultaneously complete corresponding displacement of the chair seat, and the chair back and the back of the user can relatively displace and rub under the condition that the position of the chair seat is unchanged due to the fact that the front and back distance between the chair back and the chair seat changes when the chair back is reclined, so that uncomfortable feeling is caused, and at present, even if a single existing product can simultaneously realize the function of chair seat movement, but the linkage effect of the engineering performance cannot be achieved, and the comfort is insufficient and the operability is complicated.

Although there is a chinese patent (patent No. ZL2015206115371, patent name: swivel seat back synchronous displacement system) that discloses a structure of linkage between a seat back and a seat base, the structure in the patent includes a seat base rubber shell, a seat back sliding connection frame, a seat back frame and a seat base, the upper end of the seat back sliding connection frame is fixed with a seat back sliding rod, one end of the seat back sliding rod is connected with a seat back sliding ball, and the lower end of the seat back sliding connection frame is connected with the seat base; the inner side of the chair back frame is provided with a chair back frame sliding groove, the chair back sliding ball is embedded into the chair back frame sliding groove, the lower end of the chair back frame is sleeved with a chair back rotating shaft sleeve, the chair back rotating shaft sleeve is sleeved with a chair back rotating shaft fixer, and the chair back rotating shaft fixer is fixed at the lower end of the chair seat rubber shell; the lower end of the seat rubber shell is fixedly provided with a pull-back spring, the lower end of the pull-back spring is connected with a seat base, the seat base is connected with a sliding connecting piece, and the sliding connecting piece is also connected with the seat rubber shell. The chair can conveniently realize the corresponding displacement of the seat cushion when the chair is reclined.

However, the structure of this patent can only realize the horizontal displacement of seat support, and because only one end is connected with the back of the chair ball that slides in this structure, probably lead to the linkage of back of the chair and cushion unstable, experience effect is poor. In addition, the whole structure is complex, the occupied volume is large, the special design of the chair seat is needed, the universality is poor, the production and manufacturing cost is increased, and the yield is influenced.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide a chair with a simple structure and a linkage of a chair back and a chair, wherein the chair can change the position of a chair seat in the process of reclining the chair back, so that the back of a user cannot rub the chair back, and the comfort is improved.

In order to achieve the above object, the present utility model adopts the following technical scheme:

a chair comprises a chair underframe, a chair seat and a chair back, wherein the chair underframe is in sliding connection with the chair seat through a first component, a second component is fixedly connected to the chair back, the second component is hinged with the chair seat, and the chair back is in sliding connection with the chair underframe through the second component.

As a preferable scheme: the first component is formed by sliding connection of a support A and a support B, the sliding device is formed by matching a shaft arranged on the support A with a rail arranged on the support B, and a reset device is arranged between the support A and the support B. The reset device can adopt the forms of springs, hydraulic cylinders and the like, and when the reset device is arranged to enable the chair back and the chair seat to be adjusted in a linkage mode, the process is more gentle, the reset device has an automatic reset function, and the user experience is enhanced.

As a preferable scheme: one end of the second component is fixed on the chair back, the other end of the second component is hinged on the chair seat, a sliding track is arranged on the second component, and a part of the first component, which is fixed with the chair underframe, is arranged in the sliding track in a sliding way.

As a preferable scheme: the support A is fixed at the bottom of the chair seat, the support B is fixed with the bottom frame of the chair, one end, close to the chair back, of the support B is fixed with a cross rod, two second components are arranged on two sides of the chair back and the chair seat respectively, sliding tracks are arranged on the second components, and two ends of the cross rod are arranged in the sliding tracks of the two second components in a sliding mode respectively. The cross bar is fixed in the middle, and the two ends of the cross bar are connected in a sliding manner, so that the stress of the whole cross bar is more uniform, and the stability of the chair back and the chair seat during linkage is improved.

As a preferable scheme: the support A is buckled with the support B, the side wall of the support A is positioned at the outer side of the side wall of the support B, a shaft is further fixed between the two side walls of the support A, both side walls of the support B are provided with strip-shaped through holes, and the shaft penetrates through the through holes. The shaft and the through hole are adopted for limiting movement, the structure is simple, other structures are not affected on the support, and the device is convenient to produce and process, and the cost is convenient to control.

As a preferable scheme: the both ends of horizontal pole upwards extend and are equipped with the connection piece, the connection piece slides and sets up in the slip track. Further enhancing the rationality of the arrangement of the whole mechanism and reducing the difficulty of production and assembly.

As a preferable scheme: the one end of support B both sides wall is equipped with the breach, and sets up the connection slab between two breachs, the horizontal pole card is established in the breach, and is fixed mutually with the connection slab. The structure ensures that the cross rod and the bracket B are fixed firmly, and ensures that the position of the cross rod does not move back and forth in the process of linkage adjustment of the long-term chair back and seat.

As a preferable scheme: the support A comprises fixed plates, side walls and shafts, wherein the fixed plates are fixed with the chair seat through screws, the two sides of the fixed plates are downwards folded to form the side walls, and the two shafts are respectively fixed between the two side walls one after the other. The setting of two axles has guaranteed the stability of linkage regulation under the prerequisite of control cost.

As a preferable scheme: the sliding track is curved, two long strip-shaped through holes are obliquely arranged on each side wall of the bracket B, and the two long strip-shaped through holes are parallel to each other. The shape and the trend of the sliding track and the through hole determine the range of the linkage adjustment of the chair back and the chair seat, and the structure can ensure that a user is in a more comfortable posture when the chair back and the chair seat are in linkage adjustment.

As a preferable scheme: the chair back is fixed with one end of the second member through an L-shaped plate, the bottom of the chair seat is also fixed with an L-shaped plate, and the plate is upwards opened and hinged with the other end of the second member. The connection mode of the L-shaped plates has the effect of half cladding, is more firm and stable in fixation, and can prolong the whole service life of the whole mechanism.

According to the utility model, the first component is connected with the seat and the chair underframe, so that the relative motion of the seat and the foot rest is realized, the seat back and the foot rest are also realized through the second component, one end of the second component is fixedly hinged with the seat back, the other end of the second component is fixedly hinged with the seat, the seat and the chair underframe are mutually connected through the first component and the second component, and the second component drives the seat and the chair underframe to relatively move while the back of the chair is realized.

When the chair back is reclined, the second component moves together with the chair back, the second component slides with the chair underframe, the position of the chair seat hinged at one end of the second component also changes after the position of the second component changes, and the chair seat is connected with the chair underframe in a sliding way through the first component, so that the second component can drive the chair seat to synchronously move when the chair back is reclined. The utility model has simple structure, can ensure the linkage of the chair back and the chair seat, reduce the friction between the chair back and the back of a human body and enhance the comfort of the chair.

Drawings

Fig. 1 is a schematic view of the overall installation structure of the present utility model.

Fig. 2 is a schematic structural view of the stent a of the present utility model.

Fig. 3 is a schematic structural view of the bracket B of the present utility model.

Fig. 4 is a schematic side view of a second member of the present utility model.

Fig. 5 is another side elevational view of the second member of the present utility model.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

A chair as shown in fig. 1-5, comprising a chair underframe, a seat 2 and a chair back 1, wherein the chair underframe is in sliding connection with the seat 2 through a first member, the chair back 1 is fixedly connected with a second member 4, the second member 4 is hinged with the seat 2, and the chair back 1 is in sliding connection with the chair underframe through the second member 4.

The first component is formed by sliding connection of a support A5 and a support B7, the sliding device is formed by matching a shaft 53 arranged on the support A5 with a rail 71 arranged on the support B7, and a reset spring is arranged between the support A5 and the support B7.

One end of the second component 4 is fixed on the chair back 1, the other end is hinged on the chair seat 2, a sliding track 41 is arranged on the second component, and the part of the first component fixed with the chair underframe is arranged in the sliding track 41 in a sliding way.

The support A5 is fixed at the bottom of the chair seat, the support B7 is fixed with the bottom frame of the chair, one end of the support B7, which is close to the chair back 1, is fixed with a cross rod 6, two second components 4 are arranged on two sides of the chair back 1 and the chair seat 2 respectively, sliding rails 41 are arranged on the second components, and two ends of the cross rod 6 are arranged in the sliding rails 41 of the two second components 4 in a sliding mode respectively.

The support A5 is buckled with the support B7, the side wall 52 of the support A5 is positioned on the outer side of the side wall of the support B7, a shaft 53 is further fixed between the two side walls 52 of the support A5, two strip-shaped through holes 71 are formed in the two side walls of the support B7, and the shaft 53 penetrates through the through holes 71.

The two ends of the cross bar 6 extend upwards to form connecting pieces 61, and the connecting pieces 61 are slidably arranged in the sliding rail 41.

One end of the two side walls of the bracket B7 is provided with a notch 72, a connecting plate 73 is arranged between the two notches 72, and the cross rod 6 is clamped in the notch 72 and is fixed with the connecting plate 72.

The bracket A5 comprises a fixed plate 51, side walls 52 and shafts 53, the fixed plate 51 is fixed with the seat 2 through screws, two sides of the fixed plate 51 are folded downwards to form the side walls 52, and two shafts 53 are respectively fixed between the two side walls in a tandem mode.

The sliding rail 41 is curved, each side wall of the bracket B7 is obliquely provided with two elongated through holes 71, and the two elongated through holes 71 are parallel to each other.

The chair back 1 is fixed with one end of the second member 4 through an L-shaped plate, the bottom of the chair seat 2 is also fixed with an L-shaped plate, and the plate is upwards opened and hinged with the other end of the second member 4.

The support A and the support B are arranged in a relative sliding way, so that the seat fixed on the support A and the cross rod fixed on the support B can slide relatively, and the cross rod is connected with the second component in a sliding way, so that the second component plays a role of a lever, and when the chair is tilted backwards, the second component can tilt the seat, so that the seat rises or moves forwards obliquely. The sliding arrangement of the second member is because the change in distance between the seat and the back is accommodated by changing the position of the second member.

When the chair is used, the chair back leans back, the second component moves downwards on the cross rod along the track of the sliding track, and one end of the second component hinged with the chair seat drives the chair seat to move, so that the bracket A fixed with the chair seat is separated from the bracket B and moves along the track of the through hole. The whole mechanism has reasonable design and wide adjusting range, and a user can always ensure a comfortable posture in the process of linkage of the chair back and the chair seat.

The outside of second component 4 still is equipped with hinge piece 42, the hinge piece 42 middle part is equipped with outside bellied hinge post 44, arc spacing groove 43 has still been seted up to the both sides that lie in hinge post 44 on the hinge piece 42, hinge post 44 is located and still is provided with spacing lug 45 on the lateral wall in the middle of two arc spacing grooves 43, handrail 3 inboard be equipped with connecting arm 4 outside assorted structure makes handrail 3 install on connecting arm 4, and can free rotation in certain within range. When the chair is tilted backwards, the chair seat can correspondingly move forwards and ascend, and then the positions of the armrests can be manually adjusted, so that the armrests are more attached to a human body.

It should be noted that the above embodiments are merely representative examples of the present utility model. Many variations of the utility model are possible. Any simple modification, equivalent variation and modification of the above embodiments according to the principles of the present utility model should be considered to fall within the scope of the present utility model.

Claims

1. The utility model provides a chair, includes chair chassis, seat (2) and back of the chair (1), its characterized in that: the chair underframe is connected with the chair seat (2) in a sliding way through a first component, a second component (4) is fixedly connected on the chair back (1), the second component (4) is hinged with the chair seat (2), the chair back (1) is connected with the chair underframe in a sliding way through the second component (4), the first component is formed by sliding connection of a bracket A (5) and a bracket B (7), the sliding device is formed by matching a shaft (53) arranged on the bracket A (5) with a strip-shaped through hole (71) arranged on the bracket B (7), a resetting device is arranged between the bracket A (5) and the bracket B (7), the bracket A (5) is fixed at the bottom of the chair seat, the bracket B (7) is fixed with the chair underframe, one end of the bracket B (7) close to the chair back (1) is fixed with a cross rod (6), the two second components (4) are respectively arranged at two sides of the chair back (1) and the chair seat (2), the second component is provided with a sliding track (41), the resetting device is arranged between the bracket A (5) and the bracket B (7) is fixed on the bottom of the chair underframe,

one end of the second component (4) is fixed on the chair back (1), the other end is hinged on the chair seat (2), a sliding track (41) is arranged on the second component,

connecting pieces (61) are arranged at the two ends of the cross rod (6) in an upward extending mode, the connecting pieces (61) are arranged in the sliding track (41) in a sliding mode,

the sliding rail (41) is curved, two long through holes (71) are obliquely arranged on each side wall of the bracket B (7), and the two long through holes (71) are parallel to each other.

2. A chair according to claim 1, wherein: the support A (5) is buckled with the support B (7), the side wall (52) of the support A (5) is located on the outer side of the side wall of the support B (7), a shaft (53) is further fixed between the two side walls (52) of the support A (5), two strip-shaped through holes (71) are formed in the two side walls of the support B (7), and the shaft (53) penetrates through the through holes (71).

3. A chair according to claim 1, wherein: one end of the two side walls of the bracket B (7) is provided with a notch (72), a connecting plate (73) is arranged between the two notches (72), and the cross rod (6) is clamped in the notch (72) and is fixed with the connecting plate (73).

4. A chair according to claim 1, wherein: the support A (5) comprises a fixed plate (51), side walls (52) and shafts (53), the fixed plate (51) is fixed with the seat (2) through screws, the two sides of the fixed plate (51) are downwards folded to form the side walls (52), and the two shafts (53) are respectively fixed between the two side walls one after the other.

5. A chair according to claim 1, wherein: the chair back (1) is fixed with one end of the second component (4) through an L-shaped plate, the bottom of the chair seat (2) is also fixed with an L-shaped plate, and the plate is upwards opened and hinged with the other end of the second component (4).