CN212556247U

CN212556247U - Seat disc and chair back linkage mechanism

Info

Publication number: CN212556247U
Application number: CN202020926671.1U
Authority: CN
Inventors: 赖纪衡; 许进标; 黄忠立; 林香筍; 陈文华
Original assignee: AEROSPACE INDUSTRIAL DEVELOPMENT CORP
Current assignee: AEROSPACE INDUSTRIAL DEVELOPMENT CORP
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2021-02-19
Anticipated expiration: 2030-05-28

Abstract

The utility model provides a seat dish and back of the chair interlock mechanism, include: the side support group comprises a first side support and a second side support, the pipe body is arranged on the first side support and the second side support, the chair seat is arranged between the first side support and the second side support, the chair seat is provided with a bottom surface, the bottom surface is provided with two first combining parts and two second combining parts, one first combining part is pivoted with the first side support, the other first combining part is pivoted with the second side support, the chair back is arranged between the first side support and the second side support, the second combining part of the chair back and the chair seat is connected, the chair back and the chair seat are enabled to be linked, and the driving source is connected to one end, close to the pipe body, of the chair back to drive the displacement of the chair back.

Description

Seat disc and chair back linkage mechanism

Technical Field

The present invention relates to a chair, and more particularly to a chair with adjustable inclination angle of the chair back.

Background

Most vehicles's seat all designs the pattern for adjustable back of the chair inclination, has the inclination that the back of the chair and seat support can be adjusted simultaneously to a seat very much, and in the in-process of back of the chair slope, the seat support has corresponding displacement volume, and prior art's seat dish and back of the chair interlock mechanism have various different designs, as shown in fig. 1, for one of them attitude, include:

the first chair back unit 61, the first fixed seat 62, the first movable seat 63 and the first connecting rod group 64, the first chair back unit 61 is connected with the first fixed seat 62, one end of the first connecting rod group 64 is pivoted to the chair back unit 61, the other end of the first connecting rod group 64 is pivoted to the first fixed seat 62, a pivoting point 641 is further arranged between the two ends of the first connecting rod group 64, and the pivoting point 641 is connected with one end of the first movable seat 63, therefore, when a user controls the first chair back unit 61 to tilt backwards, the pivoting point 641 of the first connecting rod group 64 can drive the first movable seat 63 to move backwards correspondingly, in addition, the other end of the first fixed seat 62 connected with the first chair back unit 61 is provided with a first seat pipe 621, one side of the first movable seat 63 facing the first seat pipe 621 is provided with a clamping groove 631, and the first movable seat 63 moves to the clamping groove 631 and is clamped to the first seat pipe 621.

Another structure of the seat pan and seat back linking mechanism of the prior art is designed as shown in fig. 2, and comprises:

the second moving seat 71, the second linkage 72 and the second seat tube 73, wherein one end of the second linkage 72 is pivotally provided on the second seat back unit 74, the other end of the second linkage 72 is pivotally provided on the second moving seat 71, the second moving seat 71 is provided on the second seat tube 73, one side of the second moving seat 71 facing the second seat tube 73 is provided with two locking protrusions 71A, two sides of the two locking protrusions 71A are respectively connected with an arc 71B, when the user controls the second seat back unit 74 to tilt backwards, the second linkage 72 links the second moving seat 71 to move, so that one end of the second moving seat 71 close to the second seat back unit 74 descends along the arc of the arc 71B to achieve the effect of linking.

Another structure design of the seat pan and the seat back linking mechanism in the prior art is shown in fig. 3, and comprises:

the third movable seat 82 is provided with a plurality of long grooves 821, the third movable seat 81 is provided with two bolt bodies 84, the third movable seat 82 is also provided with two bolt bodies 84, each bolt body 84 is respectively arranged in each long groove 821 in a sliding mode, when the third movable seat 81 tilts backwards, the third movable seat 82 is linked with the third movable seat 81 through a third connecting rod group 85 to move, and the third movable seat 82 is guided by the long grooves 821, so that the third movable seat 82 moves backwards and downwards.

It can be seen from the foregoing that, when the seat pan and the seat back linkage mechanism in the prior art are actuated, the seat will protrude forward and tilt when the seat back tilts backward, however, the distance between the rows of seats of common public transportation vehicles such as airplanes and high-speed rails is quite narrow, and the feet of the passenger often do not have enough extension space when the passenger sits, therefore, when the seat back tilts backward, the seat further pushes forward, the space in front of the passenger will be reduced, and the passenger has a bad sitting experience, therefore, a seat pan and a seat back linkage mechanism capable of simultaneously keeping the space in front of the passenger when the seat back tilts backward are required.

SUMMERY OF THE UTILITY MODEL

The utility model provides a seat dish and back of the chair link gear, the main purpose sets up link mechanism in the inside finite space of seat, makes the back of the chair incline and reaches following two effects after lying.

Firstly, the hip of the passenger rotates downwards along with the seat tray, and the knees of the passenger do not move forwards or upwards to keep the original seating space and do not influence the original foot stretching space.

Secondly, an average stress driving mechanism device is designed in the process of leaning and lying, so that the hip of a passenger keeps the original position and does not move or shake backwards and the structural stability of the chair back is improved.

To achieve the above object, the utility model discloses seat dish and back of the chair interlock mechanism includes:

a pipe body;

the pipe body is arranged on the first side bracket and the second side bracket, the first side bracket and the second side bracket are respectively provided with a first body section and a second body section which are connected, the extending directions of the first body section and the second body section are different, and the pipe body is arranged on the first body section of the first side bracket and the first body section of the second side bracket;

the chair seat is arranged between the first side support and the second side support, the chair seat is arranged on the pipe body, the chair seat is provided with a bottom surface, the bottom surface faces the pipe body, the chair seat is provided with a first end and a second end, the bottom surface is provided with two first combining parts and two second combining parts, one of the first combining parts and the second combining parts is positioned at the first end, the other one of the first combining parts and the second combining parts is positioned at the second end, the first combining part positioned at the first end is pivoted with the first side support, and the first combining part positioned at the second end is pivoted with the second side support;

the chair back is arranged between the first side support and the second side support and is pivoted on the first side support and the second side support, and the chair back is connected with the second combination part of the chair seat so as to be linked with the chair seat; and

the driving source is connected with the chair back is close to the one end of body, the definition the chair back is close to the one end of body is for driving the end, the driving source is provided with the drive the end displacement.

Drawings

Fig. 1 is a schematic diagram of the prior art.

Fig. 2 is a schematic diagram of the prior art.

Fig. 3 is a schematic diagram of the prior art.

Fig. 4 is an exploded view of the present invention.

Fig. 5 is a perspective view of the present invention.

Fig. 6 is a perspective view of another perspective of the present invention.

Fig. 7 is an actuation diagram of the seat tray and the chair back linkage mechanism of the present invention.

Fig. 8 is an actuation diagram of the seat tray and the chair back linkage mechanism of the present invention.

Description of the symbols in the drawings:

the prior art is as follows:

first seatback unit 61

First fixed seat 62

First movable base 63

First link group 64

Pivoting point 641

Second movable base 71

Locking projection 71A

Cambered surface 71B

Second linkage 72

Second seat tube 73

Second seatback unit 74

Third seatback unit 81

Third movable seat 82

Elongated slot 821

Seat part 83

Bolt 84

The utility model discloses:

pipe body P

Transverse direction Y

Side support group 10

First side bracket 11

Second side support 12

First torso parts

11A, 12A

Second torso parts

11B, 12B

Inner side surfaces

11S, 12S

Chair seat 20

First end 20A

Second end 20B

Bottom surface 21

First joint part 22

First group of holes 221

Second joint part 23

Second group of holes 231

Chair back 30

First side 31

Second side 32

First through hole G1

Second through hole G2

Driving end 35

Drive source 40

Connecting rod 50

First link 51

Second link 52

First

convex columns

511 and 521

Second

convex column

512, 522

Pivot hole S1

Pivot post H1

Locking device L

Column K

Detailed Description

The technical solution of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The utility model provides a seat dish and back of chair interlock mechanism, as shown in fig. 4 to 8, include:

a pipe P extending along the transverse direction Y, in this embodiment, the pipe P is a hollow cylinder;

a side frame assembly 10 having a first side frame 11 and a second side frame 12, the first side frame 11 and the second side frame 12 being spaced apart by a distance, a pipe P being installed on the first side frame 11 and the second side frame 12, the first side frame 11 and the second side frame 12 being substantially L-shaped, the first side frame 11 and the second side frame 12 having the same shape, the first side frame 11 and the second side frame 12 having

first body portions

11A, 12A and

second body portions

11B, 12B respectively joined to each other, the

first body portions

11A, 12A and the

second body portions

11B, 12B extending in different directions, the pipe P being installed on the

first body portions

11A, 12A of the first side frame 11 and the second side frame 12;

in the embodiment, the first side frame 11 and the second side frame 12 are arranged along the transverse direction Y, in one embodiment, two ends of the tube P are respectively disposed on the first side frame 11 and the second side frame 12, and in another embodiment, the tube P penetrates through the first side frame 11 and the second side frame 12.

The seat 20 is arranged between the first side support 11 and the second side support 12, the seat 20 is arranged on the tube body P, the seat 20 has a bottom surface 21, the bottom surface 21 faces the tube body P, the seat 20 has a first end 20A and a second end 20B, the extending direction between the first end 20A and the second end 20B is transverse Y, the bottom surface 21 has two first combining parts 22 and two second combining parts 23, one of the first combining parts 22 and the second combining part 23 is positioned at the first end 20A, the other one of the first combining parts 22 and the second combining part 23 is positioned at the second end 20B, a distance is arranged between the first combining part 22 and the second combining part 23, the first combining part 22 positioned at the first end 20A is pivoted with the first side support 11, the first combining part 22 positioned at the second end 20B is pivoted with the second side support 12, and the seat 20 can be pivoted by taking the first combining part 22 as a center;

in a preferred embodiment, the first side frame 11 and the second side frame 12 have

inner side surfaces

11S and 12S, respectively, the inner side surface 11S of the first side frame 11 and the inner side surface 12S of the second side frame 12 face each other, the

inner side surfaces

11S and 12S of the

first body portions

11A and 12A of the first side frame 11 and the second side frame 12 respectively have pivot posts H1, the first combining portion 22 has a first set of holes 221, and the pivot posts H1 are inserted into the first set of holes 221.

In the preferred embodiment, the number of the tubes P is two, the two tubes P are disposed in parallel and spaced apart by a distance, and the pivot pillar H1 is located between the two tubes P;

the backrest 30 is disposed between the first side bracket 11 and the second side bracket 12, the backrest 30 is pivotally disposed on the first side bracket 11 and the second side bracket 12, the backrest 30 is connected to the second joint portion 23 of the seat 20, so that the backrest 30 and the seat 20 are linked, the backrest 30 has a first side surface 31 and a second side surface 32, and the first side surface 31 and the second side surface 32 are opposite side surfaces of the backrest 30 along the transverse direction Y.

The driving source 40 is connected to one end of the seat back 30 close to the tube P, defining that the end of the seat back 30 close to the tube P is the driving end 35, and the driving source 40 is used for driving the driving end 35 to move, so as to pivot the seat back 30.

Preferably, the first coupling portion 22 is closer to the seat back 30 than the second coupling portion 23.

In the preferred embodiment, the chair further comprises two connecting rods 50, which define the two connecting rods 50 as a first connecting rod 51 and a second connecting rod 52, wherein one end of the first connecting rod 51 is connected to the first side surface 31 of the backrest 30, the other end of the first connecting rod 51 is connected to the second connecting portion 23 at the first end 20A of the seat 20, one end of the second connecting rod 52 is connected to the second side surface 32 of the backrest 30, and the other end of the second connecting rod 52 is connected to the second connecting portion 23 at the second end 20B of the seat 20.

In the preferred embodiment, the first side surface 31 and the second side surface 32 both have a first through hole G1, the second coupling portion 23 has a second group of holes 231, one end of the two connecting rods 51 and 52 has a

first protrusion

511 and 521, the other end of the two connecting rods 51 and 52 has a

second protrusion

512 and 522, the first protrusion 511 of the first connecting rod 51 is inserted into the first through hole G1 of the first side surface 31, the second protrusion 512 of the first connecting rod 51 is inserted into the second group of holes 231 of the second coupling portion 23 at the first end 20A, the first protrusion 521 of the second connecting rod 52 is inserted into the first through hole G1 of the second side surface 32, and the second protrusion 522 of the second connecting rod 52 is inserted into the second group of holes 231 of the second coupling portion 23 at the second end 20B.

In the preferred embodiment, the

second body portions

11B and 12B of the first side frame 11 and the second side frame 12 respectively have a pivot hole S1, the first side surface 31 and the second side surface 32 both have a second through hole G2, the first through hole G1 is adjacent to the second through hole G2, the first through hole G1 is closer to the

first body portions

11A and 12A than the second through hole G2, and further has two columns K, the two columns K are respectively inserted through the pivot holes S1 and the second through hole G2, so that the backrest 30 is pivotally mounted on the first side frame 11 and the second side frame 12.

Therefore, the present invention mainly comprises driving the seat back 30 to swing by the driving source 40, and connecting the first connecting rod 51 and the second connecting rod 52 between the seat back 30 and the seat 20, so that the first connecting rod 51 and the second connecting rod 52 drive the second joint portion 23 to move when the seat back 30 swings, and further the seat back 20 is driven to move downward near the seat back 30, and the end of the seat back 20 away from the seat back 30 is tilted upward, thereby achieving the purpose of preventing the seat back from moving forward and backward when the seat back tilts.

In summary, the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A seat pan and back of chair interlock mechanism which characterized in that includes:

a pipe body;

2. The seat pan and seat back linkage mechanism according to claim 1, wherein the tube extends in a lateral direction, the first side bracket and the second side bracket are arranged in the lateral direction, and an extending direction between the first end and the second end is the lateral direction.

3. The seat pan and seat back linkage mechanism according to claim 1, wherein the first side bracket and the second side bracket have inner side surfaces, respectively, the inner side surfaces of the first side bracket and the second side bracket face each other, the first side bracket and the second side bracket are provided with pivot posts on the inner side surfaces of the first body section, respectively, the first combination portion has a first set of holes, and the pivot posts are inserted into the first set of holes.

4. The seat pan and seat back linkage mechanism according to claim 1, wherein the first side bracket and the second side bracket have inner side surfaces, respectively, the inner side surfaces of the first side bracket and the second side bracket face each other, the first side bracket and the second side bracket are provided with pivot posts on the inner side surfaces of the first body section, respectively, the first combination portion has a first set of holes, and the pivot posts are inserted into the first set of holes.

5. The seat pan and backrest linkage mechanism according to claim 4, wherein the number of the tubes is two, the two tubes are arranged in parallel and spaced apart by a distance, and the pivot post is located between the two tubes.

6. The seat pan and backrest linkage mechanism according to claim 1, wherein the driving source is a pressure cylinder, one end of the driving source is coupled to the driving end of the backrest, and the other end of the driving source is fixed to the tube through a fastener.

7. The seat pan and seat back linkage mechanism according to claim 1, wherein the seat back has a first side and a second side, and further comprising two links, wherein the two links are defined as a first link and a second link, one end of the first link is connected to the first side of the seat back, the other end of the first link is connected to the second joint at the first end of the seat back, one end of the second link is connected to the second side of the seat back, and the other end of the second link is connected to the second joint at the second end of the seat back.

8. The linking mechanism for a seat pan and a seat back as set forth in claim 7, wherein the first side surface and the second side surface have first through holes, the second coupling portion has second holes, one of the ends of the two connecting rods has a first boss, the other end of the two connecting rods has a second boss, the first boss of the first connecting rod is inserted into the first through hole of the first side surface, the second boss of the first connecting rod is inserted into the second holes of the second coupling portion, the first boss of the second connecting rod is inserted into the first through hole of the second side surface, and the second boss of the second connecting rod is inserted into the second holes of the second coupling portion.

9. The seat pan and seat back linkage mechanism according to claim 8, wherein the second body sections of the first and second side frames have pivot holes, the first and second side surfaces have second through holes, the first through hole is adjacent to the second through hole, the first through hole is closer to the first body section than the second through hole, and two posts are provided, the two posts are respectively inserted into the pivot holes and the second through hole, so that the seat back is pivoted to the first and second side frames.