CN115191770A - Chassis structure with seat-back synchronous linkage device - Google Patents
Chassis structure with seat-back synchronous linkage device Download PDFInfo
- Publication number
- CN115191770A CN115191770A CN202110376811.1A CN202110376811A CN115191770A CN 115191770 A CN115191770 A CN 115191770A CN 202110376811 A CN202110376811 A CN 202110376811A CN 115191770 A CN115191770 A CN 115191770A
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- China
- Prior art keywords
- chassis
- bottom plate
- hinged
- pressure spring
- seat
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/18—Chairs or stools with rotatable seat
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/56—Parts or details of tipping-up chairs, e.g. of theatre chairs
- A47C7/563—Parts or details of tipping-up chairs, e.g. of theatre chairs provided with a back-rest moving with the seat
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- Seats For Vehicles (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention discloses a chassis structure with a seat back synchronous linkage device, which comprises a bottom plate, a chassis arranged below the bottom plate, a tail plate, a connecting rod block hinged with the front end of the chassis and hinged with the front end of the bottom plate, a seat back synchronous linkage device arranged in the chassis and a locking mechanism arranged in the chassis, wherein the connecting rod block is hinged with the front end of the chassis; the seat back synchronous linkage device comprises a first fulcrum shaft hinged to the rear end of the chassis and the tail plate, and a first rotating shaft located in front of the first fulcrum shaft and hinged to the rear end of the bottom plate and the tail plate, and a notch groove is formed in the chassis; the seat back synchronous linkage device also comprises a second fulcrum shaft hinged at the front end of the chassis, a third fulcrum shaft hinged at the front end of the chassis and the rear end of the connecting rod block, a second rotating shaft hinged at the front end of the connecting rod block and the front end of the bottom plate, and an elastic reset mechanism; the elastic reset mechanism comprises first pressure spring fixing glue sleeved on the second fulcrum shaft, second pressure spring fixing glue sleeved on the second rotating shaft, a telescopic connecting shaft assembly and a pressure spring sleeved outside the connecting shaft assembly.
Description
Technical Field
The invention relates to the technical field of swivel chairs, in particular to a chassis structure with a seat-back synchronous linkage device.
Background
The swivel chair is widely applied to work and life of people, and has the functions of lifting, tilting, rotating and the like, the swivel chair mainly comprises chair legs, a pneumatic rod, an air cylinder, a chassis structure, a chair seat and a backrest, various functions of the swivel chair are mainly realized through the chassis structure, along with the increasing improvement of living standard of people, the requirement of people on the comfort level of the swivel chair is higher and higher, the function of synchronous linkage of the chair seat and the backrest appears in the existing swivel chair, which means that the chair seat and the backrest synchronously operate when tilting, but the structure of the existing synchronous linkage device of the chair seat and the backrest is complex, parts are numerous, the processing difficulty is large, the production efficiency is low, the production cost is high, the structural design of the existing synchronous linkage device of the chair seat and the backrest is not scientific and reasonable enough, when tilting, a user needs to exert considerable force on the backrest in order to resist the own weight acting on the chair, the comfort of the user is influenced, the force is exerted when tilting, and the problem of insufficient elasticity sometimes occurs in the existing elastic resetting mechanism, so that the safety and the comfort is easy to be caused, and the potential safety hazard is felt.
Therefore, how to realize a simple structure, design scientific and reasonable, spare part is few, can incline and lean on the elasticity size of bending back according to user's weight automatically regulated, incline to bend on the back easily, the user can dispose the adjustment in order to obtain the best posture to back, seat support, the travelling comfort is strong, and elasticity reset mechanism elasticity is ten sufficient, effectively prevents the condition of weightlessness from appearing, the high chassis structure who has the synchronous aggregate unit of back of a seat of security is the technological problem that waits to solve in an urgent need in the industry.
Disclosure of Invention
The invention mainly aims to provide a chassis structure with a seat-back synchronous linkage device, and aims to realize the chassis structure with the seat-back synchronous linkage device, which has the advantages of simple structure, scientific and reasonable design, few parts, capability of automatically adjusting the backward-leaning elasticity according to the weight of a user, easiness and easiness in tilting operation, capability of configuring and adjusting a backrest and a seat to obtain the optimal posture, high comfort, sufficient elasticity of an elastic resetting mechanism, effective prevention of weightlessness and high safety.
The invention provides a chassis structure with a seat-back synchronous linkage device, which comprises a bottom plate fixedly arranged at the bottom of a seat and in linkage connection with the seat, a chassis arranged below the bottom plate, a tail plate arranged between the bottom plate and the chassis and in linkage connection with a backrest, a connecting rod block hinged with the front end of the chassis and hinged with the front end of the bottom plate, a seat-back synchronous linkage device arranged in the chassis, and a locking mechanism arranged in the chassis and used for keeping the back-seat synchronous linkage device in an initial state or a lifting state; the seat back synchronous linkage device comprises a first fulcrum shaft hinged to the rear end of the chassis and the tail plate, and a first rotating shaft located in front of the first fulcrum shaft and hinged to the rear end of the bottom plate and the tail plate, when the tail plate tilts backwards along with the backward tilting of the backrest, the first rotating shaft rotates around the first fulcrum shaft so as to drive the rear end of the bottom plate to move upwards and backwards, and the chassis is provided with a notch groove for the first rotating shaft to move; the seat back synchronous linkage device also comprises a second fulcrum shaft hinged at the front end of the chassis, a third fulcrum shaft hinged at the front end of the chassis and the rear end of the connecting rod block, a second rotating shaft hinged at the front end of the connecting rod block and the front end of the bottom plate, and an elastic reset mechanism for resetting the bottom plate, the tail plate and the connecting rod block; the elastic reset mechanism comprises a first pressure spring fixing glue sleeved on the second fulcrum shaft, a second pressure spring fixing glue sleeved on the second rotating shaft, a telescopic connecting shaft assembly connected between the first pressure spring fixing glue and the second pressure spring fixing glue, and a pressure spring sleeved outside the connecting shaft assembly and constrained between the first pressure spring fixing glue and the second pressure spring fixing glue; when the rear end of the bottom plate moves upwards and backwards, the front end of the bottom plate is driven to move upwards and backwards, the front end of the bottom plate drives the second rotating shaft to move upwards and backwards, so that the second rotating shaft and the front end of the connecting rod block rotate around the third fulcrum shaft, and meanwhile, the movement of the second rotating shaft drives the second pressure spring fixing glue to move backwards so as to force the pressure spring to contract and generate elasticity.
Preferably, a taper pipe is installed on the chassis.
The chassis structure with the seat-back synchronous linkage device is simple in structure, scientific and reasonable in design, few in parts, capable of automatically adjusting the backward bending elasticity according to the weight of a user, easy and easy to tilt, strong in comfort, sufficient in elasticity of the elastic reset mechanism, capable of effectively preventing the occurrence of weightlessness and high in safety, and the backrest and seat can be configured and adjusted to obtain the optimal posture by the user.
Drawings
FIG. 1 is a perspective view of a base plate with a seat-back synchronization linkage according to an embodiment of the present invention;
FIG. 2 is a second perspective view of the chassis structure with a seat-back synchronization linkage according to the present invention;
FIG. 3 is a schematic side view of a base plate structure with a seat back synchronization linkage according to an embodiment of the present invention;
FIG. 4 is an exploded perspective view of an embodiment of a chassis structure with a seat back synchronization linkage according to the present invention;
FIG. 5 is a schematic exploded side view of a chassis structure with a seat back synchronization linkage according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 5, an embodiment of a chassis structure with a seat-back synchronous linkage device according to the present invention includes a bottom plate 101 fixed at the bottom of a seat and linked with the seat, a chassis 102 disposed below the bottom plate 101, a tail plate 103 disposed between the bottom plate 101 and the chassis 102 and linked with a backrest, a link block 104 hinged to the front end of the chassis 102 and hinged to the front end of the bottom plate 101, a seat-back synchronous linkage device disposed in the chassis 102, and a locking mechanism 105 disposed in the chassis 102 for maintaining the seat-back synchronous linkage device in an initial state or a lifted state.
The chassis 102 is provided with a taper pipe 106, and the lower end of the taper pipe 106 is connected with a pneumatic rod.
The seat-back synchronous linkage device comprises a first fulcrum shaft 107 hinged to the rear end of the chassis 102 and the tail plate 103, and a first rotating shaft 108 located in front of the first fulcrum shaft 107 and hinged to the rear end of the base plate 101 and the tail plate 103, when the tail plate 103 tilts backwards along with the backward tilting of the backrest, the first rotating shaft 108 rotates around the first fulcrum shaft 107 to drive the rear end of the base plate 101 to move upwards and backwards, the front end of the base plate 101 also moves upwards and backwards with a moving amplitude larger than that of the rear end of the base plate 101, and the chassis 102 is provided with a notch 109 for the first rotating shaft 108 to move.
The seat back synchronous linkage device also comprises a second fulcrum shaft 110 hinged at the front end of the chassis 102, a third fulcrum shaft 111 hinged at the front end of the chassis 102 and the rear end of the connecting rod block 104, a second rotating shaft 112 hinged at the front end of the connecting rod block 104 and the front end of the bottom plate 101, and an elastic reset mechanism which plays a reset role on the bottom plate 101, the tail plate 103 and the connecting rod block 104.
The elastic reset mechanism comprises a first pressure spring fixing glue 113 sleeved on the second fulcrum shaft 110, a second pressure spring fixing glue 114 sleeved on the second rotating shaft 112, a telescopic connecting shaft assembly 115 connected between the first pressure spring fixing glue 113 and the second pressure spring fixing glue 114, and a pressure spring 116 sleeved outside the connecting shaft assembly 115 and constrained between the first pressure spring fixing glue 113 and the second pressure spring fixing glue 114.
When the rear end of the base plate 101 tilts upwards and backwards, the front end of the base plate 101 is driven to tilt upwards and backwards, the front end of the base plate 101 drives the second rotating shaft 112 to move upwards and backwards, so that the second rotating shaft 112 and the front end of the connecting rod block 104 rotate around the third fulcrum shaft 111, and meanwhile, the movement of the second rotating shaft 112 drives the second pressure spring fixing glue 114 to move backwards, so that the pressure spring 116 is forced to contract to generate elasticity. This synchronous linkage of seat back can be according to user's weight automatically regulated elasticity size of bending backward, and the in-process of bending backward, when user's weight is great, tailboard 103, bottom plate 101 are great to pressure spring 116's effort, and pressure spring 116 is compressed more, and bounce is just big more, and pressure spring 116 is also big more to the reaction force of tailboard 103, bottom plate 101, can be according to user's weight automatically regulated elasticity size of bending backward. This elasticity canceling release mechanical system adopts pressure spring 116, and pressure spring 116 is the helical spring who bears to pressure, and the pressure that can bear is strong, and the elastic coefficient is high, when inclining, even the user leans back to the end when the biggest inclination, the dynamics of user's application of force in pressure spring 116 is also the biggest, and the user can easily be dealt with to the application of force of user to back and bottom plate 101 to the elasticity of this elasticity canceling release mechanical system's pressure spring 116, the condition of weightlessness can not appear, and the travelling comfort when the user inclines and leans back is high moreover. The seat-back synchronous linkage device is simple in structure, scientific and reasonable in design, few in parts, capable of automatically adjusting the back-bending elasticity according to the weight of a user, easy and easy in bending operation, strong in comfortableness, sufficient in elasticity of the elastic reset mechanism, capable of effectively preventing the occurrence of weightlessness and high in safety, and the user can configure and adjust the backrest and the seat to obtain the optimal posture.
Through this synchronous linkage of back of a seat can make the user simply comfortably operate of leaning on relatively self weight, when adjusting suitable inclination, can lock inclination through locking mechanical system 105, user's accessible synchronous linkage of back of a seat comes to dispose the adjustment in order to obtain the best posture to back, seat support, and the travelling comfort is strong.
The chassis structure with the seat-back synchronous linkage device is simple in structure, scientific and reasonable in design, few in parts, capable of automatically adjusting the backward bending elasticity according to the weight of a user, easy and easy to tilt, strong in comfort, sufficient in elasticity of the elastic reset mechanism, capable of effectively preventing the occurrence of weightlessness and high in safety, and the backrest and seat can be configured and adjusted to obtain the optimal posture by the user.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the specification and drawings, or any other related technical fields, are all included in the scope of the present invention.
Claims (2)
1. The chassis structure with the seat-back synchronous linkage device is characterized by comprising a bottom plate fixedly arranged at the bottom of a seat and in linkage connection with the seat, a chassis arranged below the bottom plate, a tail plate arranged between the bottom plate and the chassis and in linkage connection with a backrest, a connecting rod block hinged with the front end of the chassis and hinged with the front end of the bottom plate, the seat-back synchronous linkage device arranged in the chassis, and a locking mechanism arranged in the chassis and used for keeping the back-seat synchronous linkage device in an initial state or a lifting state;
the seat back synchronous linkage device comprises a first fulcrum shaft hinged to the rear end of the chassis and the tail plate, and a first rotating shaft located in front of the first fulcrum shaft and hinged to the rear end of the bottom plate and the tail plate, when the tail plate tilts backwards along with the backward tilting of the backrest, the first rotating shaft rotates around the first fulcrum shaft so as to drive the rear end of the bottom plate to move upwards and backwards, and the chassis is provided with a notch groove for the first rotating shaft to move;
the seat back synchronous linkage device also comprises a second fulcrum shaft hinged at the front end of the chassis, a third fulcrum shaft hinged at the front end of the chassis and the rear end of the connecting rod block, a second rotating shaft hinged at the front end of the connecting rod block and the front end of the bottom plate, and an elastic reset mechanism playing a reset role on the bottom plate, the tail plate and the connecting rod block;
the elastic reset mechanism comprises a first pressure spring fixing glue sleeved on the second fulcrum shaft, a second pressure spring fixing glue sleeved on the second rotating shaft, a telescopic connecting shaft assembly connected between the first pressure spring fixing glue and the second pressure spring fixing glue, and a pressure spring sleeved outside the connecting shaft assembly and constrained between the first pressure spring fixing glue and the second pressure spring fixing glue;
when the rear end of the bottom plate moves upwards and backwards, the front end of the bottom plate is driven to move upwards and backwards, the front end of the bottom plate drives the second rotating shaft to move upwards and backwards, so that the second rotating shaft and the front end of the connecting rod block rotate around the third fulcrum shaft, and meanwhile, the movement of the second rotating shaft drives the second pressure spring fixing glue to move backwards so as to force the pressure spring to contract and generate elasticity.
2. A base plate structure with a seat back synchronous linkage as recited in claim 1, wherein a taper pipe is mounted on the base plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110376811.1A CN115191770A (en) | 2021-04-08 | 2021-04-08 | Chassis structure with seat-back synchronous linkage device |
| TW111100283A TWI801076B (en) | 2021-04-08 | 2022-01-04 | Chassis structure having a seat back synchronous coupling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110376811.1A CN115191770A (en) | 2021-04-08 | 2021-04-08 | Chassis structure with seat-back synchronous linkage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115191770A true CN115191770A (en) | 2022-10-18 |
Family
ID=83570458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110376811.1A Pending CN115191770A (en) | 2021-04-08 | 2021-04-08 | Chassis structure with seat-back synchronous linkage device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115191770A (en) |
| TW (1) | TWI801076B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207590324U (en) * | 2017-06-19 | 2018-07-10 | 杭州杨氏实业有限公司 | A kind of synchronization reclining chassis of slip of usheing to seat |
| CN210942018U (en) * | 2019-09-10 | 2020-07-07 | 何泽江 | Driving mechanism and crawler-type chassis |
| CN110974562A (en) * | 2019-12-11 | 2020-04-10 | 广东海洋大学 | Convenient and old intelligent wheelchair |
| CN212280602U (en) * | 2020-07-15 | 2021-01-05 | 中山市继文家具有限公司 | Chassis structure with seat-back synchronous linkage device |
-
2021
- 2021-04-08 CN CN202110376811.1A patent/CN115191770A/en active Pending
-
2022
- 2022-01-04 TW TW111100283A patent/TWI801076B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| TWI801076B (en) | 2023-05-01 |
| TW202239392A (en) | 2022-10-16 |
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