CN218773607U

CN218773607U - Seat

Info

Publication number: CN218773607U
Application number: CN202222854679.3U
Authority: CN
Inventors: 何基; 叶金; 阮正富
Original assignee: UE Furniture Co Ltd
Current assignee: UE Furniture Co Ltd
Priority date: 2022-03-14
Filing date: 2022-10-27
Publication date: 2023-03-31
Anticipated expiration: 2032-10-27
Also published as: CN115886473A; CN116076881A

Abstract

The utility model discloses a seat, include: a base; the chair body is arranged above the base and comprises a seat bracket, a traction arm and a back support; the lower end of the first support arm is hinged with the base, the upper end of the first support arm is hinged with the front end of the traction arm, and the first support arm is also hinged with the seat bracket; the rear end of the traction arm is hinged with the lower end of the back bracket; the lower end of the second support arm is hinged with the lower end of the base, and the upper end of the second support arm is hinged with the seat bracket; an actuator having one end hinged to the seat bracket and the other end hinged to the seat bracket or the back support; the seat has sitting posture and lying posture, when the actuator moves towards one direction, the first support arm and the second support arm incline forwards and fall down, the seat bracket moves forwards downwards, the back support is tilted backwards through the traction arm, and the seat bracket is converted into the lying posture state; when the actuator moves in the opposite direction, the first support arm and the second support arm are erected in the opposite direction to support the seat support to move upwards and backwards, and then the sitting posture state is converted.

Description

Seat

Technical Field

The utility model relates to the technical field of seats, in particular to a dual-purpose seat for sitting and lying.

Background

The leisure chair is a chair for relaxing and enjoying in leisure, and is provided with thick soft packages so as to provide comfort for people; the massage chair also has thick soft package and provides massage function on the basis to dredge and activate blood; both chairs, however, have common disadvantages: people are inconvenient to get up and get in and out. Specifically, the leisure chair and the massage chair are usually provided with a footrest function, the footrest is opened to occupy large space, the footrest driving mechanism is complex in structure and high in maintenance cost, and the folding and the opening are inconvenient in use, for example, the footrest needs to be retracted when a human body rises, and if the footrest is not retracted, the rising is hindered by the footrest, so that the folding and the opening are inconvenient; in addition, although the leg rest is provided, the comfort level of lying is improved, but the cost is also improved.

The height of the seat of the leisure chair from the ground is approximately 420-450mm, if the leisure chair is not provided with a leg rest, the height of the seat from the ground is high, when the leisure chair is in a lying state, the hip is high from the ground, the thighs and the calves must be bent, the blood backflow burden is large, the circulation is not smooth, and the leg and the foot discomfort can be caused.

For the existing office chair, the office chair also has the functions of foot rest and no foot rest, the office chair is usually supported by an air rod, and the height of the air rod is between 390-410mm (the height is increased by 80mm after the air rod is lifted) from the ground when the height is the lowest; for an office chair without a leg rest, when the chair back is laid down for rest, the air rod is at the lowest, and the height above the ground is still high, so that the legs and the feet of the chair can still hang on the ground, and the chair is still uncomfortable. For an office chair with a footrest, when the chair back is laid down for rest, the footrest part is pulled out for footrest rest, but the person still cannot get up conveniently, and the footrest part is inconvenient to open and store; especially, when the leg rest is in an open state and the seat is rotated, a larger space is required, which is not favorable for space utilization in an office space.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a can save space's thing to sit on, this thing to sit on especially lie under the appearance state, the seat face height can fall extremely low for people's leg can tie to ground, works as the bracket rest portion of chair with ground, and the foot is directly put subaerial, and whole ground all is user's bracket portion, and the travelling comfort is better, and the posture of foot is more free.

The technical scheme of the utility model is realized like this:

a piece of seating furniture, comprising:

a base configured as a main body support of the chair body;

the chair body is arranged above the base and comprises a seat bracket, a traction arm and a back support;

the lower end of the first support arm is hinged with the lower end of the base, the upper end of the first support arm is hinged with the front end of the traction arm, and meanwhile, the first support arm is hinged with the seat bracket; the rear end of the traction arm is hinged with the lower end of the back bracket;

the lower end of the second support arm is hinged with the lower end of the base, and the upper end of the second support arm is hinged with the seat bracket;

the seat bracket, the first support arm, the second support arm and the base form a four-bar linkage;

a support extends upwards from the rear end of the seat bracket, and a support extending forwards from the lower part of the back bracket is hinged with the support;

an actuator, one end of the actuator is hinged with the seat bracket, and the other end of the actuator is hinged to the traction arm or the back bracket;

the seat has sitting posture and lying posture, when the actuator moves towards one direction, the first support arm and the second support arm incline forwards and fall down, the seat bracket moves forwards downwards, the back support is tilted backwards through the traction arm, and the seat bracket is converted into the lying posture state; when the actuator acts in the opposite direction, the first support arm and the second support arm rise in the opposite direction, the seat support bracket is supported to move upwards and backwards, and the back support bracket is inclined forwards and is converted into a sitting posture.

Preferably, the base is connected with a base component for supporting the base, the base component comprises supporting legs and supporting columns, the base is connected with the supporting columns, and the positions of the lower ends of the base are close to the positions of the supporting legs. The existence of the base enables the lower ends of the first support arm and the second support arm to be close to the ground, and the height of the seat bracket can be reduced as much as possible when the lying position is switched.

Preferably, the support column is a gas rod, the base is driven by the lifting of the support column to move synchronously, the upper end of the base is connected with the upper end of the support column, and the lower end of the base extends downwards to a position close to the lower end of the support column. The air rod can be arranged to enable the seat to be used for people with different heights.

Preferably, in the sitting position, the first arm and the second arm are kept in a basically vertical state. So that enough vertical displacement space and distance are reserved when the device falls down.

Preferably, the height of the seat bracket from the ground is 250-280cm in the lying state. This height above the ground allows the user to rest both feet on the ground and thereby spread both legs without the need for a foot rest.

Preferably, the handrail assembly comprises a handrail, the rear end of the handrail is hinged with the back support, and the front end of the handrail is connected and matched with the support through a sliding groove guide mechanism. The armrest can change the inclination angle along with the switching of the lying posture and the sitting posture so as to increase the comfort.

Preferably, the sliding groove guide mechanism comprises a sliding groove and a guide pin, the guide pin is arranged on one of the handrail and the support, and the sliding groove is arranged on the other of the handrail and the support.

Preferably, the base is of a vertical frame structure, and the height of the base is 25-40cm.

Preferably, the seat bracket is provided with a limiting plate, and the first support arm is inclined forward and supported by the limiting plate when the seat bracket is in the lying posture. The limiting plate prevents the first supporting arm from excessively leaning forward to cause the stability of the whole mechanism to be lost, so as to prevent the seat from being incapable of supporting a user to tip over or cause structural damage.

Preferably, the hinge point of the first support arm and the seat bracket is located between the hinge point of the first support arm and the traction arm and the hinge point of the first support arm and the base. The arrangement of the hinge points will affect the motion trail of the connecting rod, and the switch between the sitting posture and the lying posture of the seat can be effectively realized according to the hinge points arranged in the above way.

Preferably, a transmission shaft arranged along the left-right direction is arranged on the back support, the actuator is hinged with the back support through the transmission shaft, and the transmission shaft is positioned in front of a hinged point of the back support and the traction arm. The trailing arm has the function of extending the back support, like a joint of the back support, by which movement the back support can be rotated relative to the seat carrier.

Adopted above-mentioned technical scheme the utility model discloses a design departure point, theory and beneficial effect are:

1. the utility model discloses have the commonality, the foot portion is put in the cancellation, has reduced occupation space, has official working, leisure function in step, has further reduced the terrain clearance of seat support, simultaneously, guarantees the stability of whole framework. The lowest ground clearance of the seat surface is 260-270mm, although the footrest part is cancelled, the footrest function is not reduced or lost, but is improved, so that the degree of freedom and comfort of the leg in the half lying state are higher.

2. In specific application, the support column also adopts a common air rod; the base is further moved downwards, the upper end of the base is connected with the top end of the support column, and the lower end of the base reversely and downwards extends to the lower end of the support column, so that the rotating points of the lower ends of the first support arm and the second support arm are as low as possible, and when the first support arm and the second support arm fall down, the seat bracket can also be lowered to the position as low as possible, and a user can place feet on the ground with both legs extending.

3. The seat has lying and sitting postures; the seat bracket, the first support arm, the second support arm and the base form a four-bar linkage mechanism so as to ensure that the seat bracket can stably run when the seat bracket is switched between the lying posture and the sitting posture.

4. In a sitting posture state, namely an office state, the first and second support arms of the four-bar chassis are in a basically vertical state, so that when the four-bar chassis is converted to a lying state, the first and second support arms have a larger state conversion space, and the height change and the forward movement stroke of the seat have larger realization space.

5. The utility model discloses a utility model is key lies in: the height problem of the prior seat is solved, which is a great problem in the prior art, and the air rod is not simply reduced to the lowest level; the utility model discloses a design of base is in upright state with first support arm, the second support arm among the four-bar linkage when normal official working position of sitting, and when it commutates to the position of lying, first support arm, second support arm then fall forward and drive the seat bracket and move forward to make the seat bracket height reduce.

Furthermore, the hinged point position of the two support arms forming the four-bar mechanism can be moved downwards, namely to the lower end of the base, and even when the air rod is lowered to the lowest position, the seat bracket still keeps the same height as that of the support bracket which is supported by the air rod in the prior art in a sitting posture state; when the sitting posture is changed into the lying posture, the seat bracket moves forwards and downwards further, namely, the height of the seat bracket is further reduced when the air rod is the lowest, so that the seat bracket is close to the ground.

The seat surface is low, the gravity center is low, the feet are directly placed on the ground, the whole ground is the leg placing part of the user, the comfort is better, and the posture of the feet is more free.

Drawings

FIG. 1 is a schematic view of the overall three-dimensional structure of the seat of the present invention;

fig. 2 is a schematic structural view of the present invention in a sitting posture state viewed from the bottom;

fig. 3 is a schematic perspective view of the present invention at another angle in a sitting posture;

FIG. 4 is a schematic view of the three-dimensional structure of the utility model in the lying posture;

fig. 5 is a schematic view of a three-dimensional structure at another angle in a lying posture state of the present invention;

FIG. 6 is a schematic view showing the seat support and other components in a sitting position of the present invention in a disassembled state;

FIG. 7 is a schematic view of the seat bracket in a sitting position separated from the other components;

FIG. 8 is a schematic view of the seat in a sitting posture to lying posture state;

FIG. 9 is a schematic perspective view of a seat base of the present invention;

FIG. 10 is a schematic perspective view of a seat bracket of the present invention;

FIG. 11 is a schematic view of the seating apparatus in a sitting position;

fig. 12 is a schematic view of the sitting device in a lying position.

The figures are numbered: a base 1; a front plate 101; a rear plate 102; a top plate 103; side panels 104; a chair body 2; a seat bracket 3; a support portion 31; a coupling lug 32; a connecting portion 33; a traction arm 4; a back support 5; a handrail 6; a base member 7; supporting legs 8; a support column 9; a first arm 10; a second support arm 11; a pin 12; a support 13, a support 14; a chute guide mechanism 15; a chute 16; a guide pin 17; a drive shaft 18; a limit plate 19; an actuator 20.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, the term "at least one" means one or more unless explicitly defined otherwise. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The specific implementation manner of the utility model is as follows:

as shown in fig. 1-7, the present invention provides a seat, comprising:

the base assembly 7, the base assembly 7 includes a supporting leg 8 and a supporting pillar 9, in this embodiment, the supporting leg 8 is a five-star leg, and the supporting pillar 9 is a gas rod.

A base 1 configured as a main body support of a chair body 2; in the present embodiment, the base 1 is provided as a housing having a rectangular parallelepiped shape; the base 1 is connected with the supporting column 9, the base 1 is buckled on the supporting column 9 in an inverted mode, so that the base 1 covers most of the supporting column 9, and the position of the lower end of the base 1 is close to the position of the supporting leg 8; specifically, as shown in fig. 9, the base 1 includes a front plate 101, a rear plate 102, a top plate 103, and two left and right side plates 104, the front plate 101, the rear plate 102, the top plate 103, and the side plates 104 are connected to each other to form a housing, and a hole is formed in the top plate 103 to connect to the support column 9.

The chair body 2 is arranged above the base 1, and the chair body 2 comprises a seat bracket 3, a traction arm 4 and a back support 5.

The lower end of the first support arm 10 is hinged with the lower end of the base 1, the upper end of the first support arm 10 is hinged with the front end of the traction arm 4, meanwhile, the first support arm 10 is hinged with the seat bracket 3 through a pin shaft 12, but a hinge point of the first support arm 10 and the seat bracket 3 and a hinge point of the first support arm 10 and the traction arm 4 are staggered with each other and are not in one position, and the hinge point of the first support arm 10 and the seat bracket 3 is positioned between the hinge point of the first support arm 10 and the traction arm 4 and the hinge point of the first support arm 10 and the base 1; the rear end of the traction arm 4 is hinged with the lower end of the back bracket 5.

The lower end of the second support arm 11 is hinged with the lower end of the base 1, and the upper end of the second support arm 11 is hinged with the seat bracket 3; the hinge point of the second arm 11 and the seat bracket 3 is located above and behind the hinge point of the first arm 10 and the seat bracket 3.

The seat bracket 3, the first support arm 10, the second support arm 11 and the base 1 form a four-bar linkage; the two first support arms 10 and the two second support arms 11 are respectively arranged at the left side and the right side of the base 1, and the two first support arms 10 are also arranged at the left side and the right side of the base 1; on the same side of the base 1, a first support arm 10 and a second support arm 11 are arranged in tandem, and the first support arm 10 is positioned on the front side of the second support arm 11; the first arm 10 and the second arm 11 are hinged to the side plate 104, and the hinge points of the two are located at the front and rear ends of the lower end of the side plate.

A support 13 extends upwards from the rear end of the seat bracket 3, and a support 14 extending forwards from the lower part of the back bracket 5 is hinged with the support 13;

an actuator 20, one end of the actuator 20 is hinged with the seat bracket 3, and the other end of the actuator 20 is hinged with the towing arm 4 or the back bracket 5; in the present embodiment, the actuator 20 may employ an electric push rod and is hinged with the back bracket 5; specifically, the back frame 5 is provided with a transmission shaft 18 arranged along the left-right direction, one end of the actuator 20 is hinged with the seat bracket 3, the other end is hinged with the back frame 5 through the transmission shaft, and the transmission shaft 18 is positioned in front of the hinged point of the back frame 5 and the traction arm 4.

The sitting device has a sitting posture and a lying posture, and as shown in fig. 8, when the actuator 20 moves towards one direction, the first support arm 10 and the second support arm 11 incline forwards and fall down from the upright state, the seat bracket 3 moves forwards downwards, the back support 5 tilts backwards through the traction arm 4, and the sitting device is converted into the lying posture state; when the actuator 20 is operated in the opposite direction, the first arm 10 and the second arm 11 are raised in the opposite direction, and the seat support 3 is lifted to move upward and backward, and the back support 5 is tilted forward to be converted to the sitting posture.

As shown in fig. 10, the seat bracket 3 includes a supporting portion 31, two engaging lugs 32 and a connecting portion 33, the supporting portion 31 is substantially horizontal, the engaging lugs 32 and the connecting portion 33 are both fixedly disposed below the supporting portion 31 and protrude downward from the supporting portion 31, the actuator 20 is hinged to the engaging lugs 32, the two engaging lugs 32 are disposed at the front end of the supporting portion 31 with a left-right interval therebetween; the connecting parts 33 are positioned behind the connecting lugs 32, the connecting parts 33 are sheet-shaped bodies, the number of the connecting parts 33 is also two, the two connecting parts 33 are arranged at intervals left and right, the first support arm 10, the second support arm 11 and the base 1 are positioned between the two connecting parts 33, and the connecting parts 33 are hinged with the first support arm 10 and the second support arm 11; the holder 13 is located at the rear end of the support 31.

Be equipped with limiting plate 19 on the connecting portion 33 of seat bracket 3, limiting plate 19 sets up in the place ahead of first arm 10, and limiting plate 19 from back to front tilt up, and when the thing to sit on was in the appearance state of lying, first arm 10 leaned forward and leaned on limiting plate 19, and limiting plate 19 supports first arm 10.

Furthermore, in order to support the elbow of the arm, the armrest assembly comprises an armrest 6, the rear end of the armrest 6 is hinged with the back support 5, and the front end of the armrest 6 is connected and matched with the support 13 through a chute guide mechanism 15; specifically, the chute guide mechanism 15 includes a chute 16 and a guide pin 17, the guide pin 17 is disposed on one of the handrail 6 and the support 13, and the chute 16 is disposed on the other of the handrail 6 and the support 13; in the present embodiment, the guide pin 17 is provided at the upper end portion of the support 13, the chute 16 opens on the armrest 6 and the chute 16 is inclined forwardly and upwardly. The armrest linkage design is designed so that when the back support 5 falls down, the backward falling angle of the armrests is more suitable for the requirement of human body support, and the armrest linkage design does not have too much or too little and accords with human engineering.

As shown in fig. 8 and 11, in the sitting posture, the support column 9, i.e. the air rod, is lowered to the lowest position, which is the same as that of the common chair, and at this time, the user can adjust the height of the air rod to the proper height according to the height and the use habit of the user.

As shown in fig. 8 and 12, in the lying posture, since the first arm 10 and the second arm 11 both tilt forward and fall down, the height of the seat surface is further lowered, and the average height H from the seat surface to the ground at the lowest position of the air lever is between 250-300cm, at this time, the user lies on the chair, extends both feet to the ground in a posture of extending both legs, and takes the ground as the leg rest of the chair; or the user can adjust the legs or the feet to any position which is comfortable for the user; similarly, as for the use height, the user can adjust the height of the air lever according to the use habit of the user so as to enable the seat surface height to reach the height required by the user.

In the present embodiment, the actuator 20 directly drives the back support 5 to move, the back support 5 can rotate relative to the seat bracket 3, the armrest 6 connected to the back support 5 can also tilt along with the back support, the back support 5 drives the traction arm 4 to move when moving, and further drives the first support arm 10 to rotate relative to the base 1, when the first support arm 10 rotates, the seat bracket 3 moves along with the first support arm 10, the second support arm 11 also rotates relative to the base 1, and the first support arm 10 and the second support arm 11 together enable the seat bracket 3 to move substantially horizontally all the time.

Claims

1. A seating furniture, characterized by comprising:

a base configured as a main body support of the chair body;

2. The seating furniture according to claim 1, characterized in that: the base is connected with a base component used for supporting the base, the base component comprises supporting legs and supporting columns, the base is connected with the supporting columns, and the positions of the lower ends of the base are close to the positions of the supporting legs.

3. The seat according to claim 2, characterized in that: the support column is a gas rod, the lifting of the support column drives the base to move synchronously, the upper end of the base is connected with the upper end of the support column, and the lower end of the base extends downwards to a position close to the lower end of the support column.

4. The seating furniture of claim 1, wherein: in the sitting position, the first support arm and the second support arm are kept in a basically vertical state.

5. The seating furniture of claim 1, wherein: in the lying state, the height of the seat bracket from the ground is 250-280cm.

6. The seating furniture according to claim 1, characterized in that: the handrail component comprises a handrail, the rear end of the handrail is hinged with the back support, and the front end of the handrail is connected and matched with the support through a sliding groove guide mechanism.

7. The seating furniture of claim 6, wherein: the sliding groove guide mechanism comprises a sliding groove and a guide pin, the guide pin is arranged on one of the handrail and the support, and the sliding groove is arranged on the other one of the handrail and the support.

8. The seating furniture according to claim 1, characterized in that: the base is of a vertical frame structure, and the height of the base is 25-40cm.

9. The seating furniture of claim 1, wherein: the seat bracket is provided with a limiting plate, and the first support arm leans forwards and is supported by the limiting plate when the seat bracket is in a lying posture.

10. The seating furniture according to claim 1, characterized in that: the hinge point of the first support arm and the seat bracket is positioned between the hinge point of the first support arm and the traction arm and the hinge point of the first support arm and the base.

11. The seating furniture according to claim 1, characterized in that: the back support is provided with a transmission shaft arranged along the left-right direction, the actuator is hinged with the back support through the transmission shaft, and the transmission shaft is positioned in front of the hinged point of the back support and the traction arm.