CN210930440U

CN210930440U - Tilt angle adjusting mechanism for office chair

Info

Publication number: CN210930440U
Application number: CN201922015812.4U
Authority: CN
Inventors: 辛艺; 赵吉强; 苟华刚
Original assignee: Chongqing Yanfeng Adient Automotive Components Co Ltd
Current assignee: Chongqing Adient Automotive Components Co Ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-07-07
Anticipated expiration: 2029-11-20

Abstract

The utility model discloses an inclination adjustment mechanism for official working seat, install including support and rotation support assembly on the support, be equipped with the arc rack on the support, the last gear box of installing of support assembly, the power input end of this gear box is connected with drive assembly, power take off end be equipped with arc rack toothing's gear. The utility model has the advantages that: the adjustable chair is convenient to adjust and long in service life, can automatically adjust the inclination angle of the chair, is rich in high-grade feeling, and effectively improves user experience.

Description

Tilt angle adjusting mechanism for office chair

Technical Field

The utility model relates to an adjustment mechanism for seat, concretely relates to inclination adjustment mechanism for official working seat.

Background

The office chair is office furniture, and for office workers, most of working days are in the chair, and the chair with reasonable structural design and better comfort plays a role in relieving fatigue of long-time sitting.

In the product design of the existing office chair, the practicability and the beauty are usually contradictory, the comfort and the health are contradictory, and sometimes wrong sitting postures can relax muscles but can cause the burden of the spine. For this reason, some comfortable seats are also available in the market, and the sitting posture of the user is adjusted by adjusting the inclination angle of the seat, but the adjusting structure of the seats is generally unreasonable in design, and the seat is represented by the aspects of inconvenient adjustment, easy damage, poor reliability and the like.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an inclination adjustment mechanism for office chair to solve traditional adjustment mechanism and be not convenient for adjust, easy bad damage and technical defect such as reliability difference.

In order to achieve the above purpose, the utility model discloses technical scheme as follows:

a tilt angle adjusting mechanism for office chair, includes the support and rotates and installs the supporting component on the support, its key lies in: the support is provided with an arc-shaped rack, the support assembly is provided with a gear box, the power output end of the gear box is provided with a gear meshed with the arc-shaped rack, and the power input end of the gear box is connected with a driving assembly so as to drive the gear to rotate through the gear box.

By adopting the structure, the supporting component is used for supporting the body of a user, when the inclination angle of the seat needs to be adjusted, the driving component drives the gear box to work, and the gear and the arc-shaped rack are interacted, so that the supporting component is driven to rotate relative to the bracket, and the adjustment of the inclination angle of the seat is completed. The adjusting mechanism can automatically adjust the inclination angle of the seat, is rich in high-grade feeling, and also has the technical advantages of convenience in adjustment, reliability in support, long service life and the like.

Preferably, the method comprises the following steps: the support assembly comprises a seat support component and a backrest support component, wherein the backrest support component is provided with armrests, and the middle parts of the armrests are rotatably mounted at the upper end of the support. By adopting the structure, the position of the armrest which is in running fit with the bracket is the rotating point of the supporting component.

Preferably, the method comprises the following steps: the gear box is internally provided with a worm wheel and a worm which are meshed with each other, wherein the worm wheel is sleeved with an output shaft, the gear is fixedly arranged on the output shaft, and the end part of the worm is provided with a power input port. By adopting the structure, when the seat is not required to be adjusted, the seat can be kept fixed by the self-locking action of the worm wheel and the worm.

Preferably, the method comprises the following steps: the driving assembly comprises a motor, and the motor is connected with the worm through a flexible shaft.

Preferably, the method comprises the following steps: the support distributes in the left and right sides of seat support component, the both ends of seat support component downside are all installed the gear box, the motor is dual output motor, passes through respectively between its two output and the gear box that corresponds the flexible axle connection. By adopting the structure, the supporting components can be synchronously driven to rotate at the two ends, the stress distribution is more uniform, and the smoothness of seat adjustment is better.

Preferably, the method comprises the following steps: the seat supporting component is characterized in that a retainer is mounted on the lower side of the seat supporting component and is n-shaped, a motor mounting groove is formed in the retainer, and flexible shaft mounting grooves extending from two ends of the motor mounting groove to opposite directions are formed in the retainer. By adopting the structure, the assembly is convenient.

Preferably, the method comprises the following steps: the support corresponds the position of arc rack and is equipped with the arc hole, the tip of gear is equipped with the bulge of outside extension, and this bulge slides and sets up in the arc is downthehole. By adopting the structure, the installation is convenient.

Preferably, the method comprises the following steps: the motor mounting groove is arranged in the middle of the retainer, and a motor fixing hole and a motor clamping groove are respectively arranged at two ends of the motor mounting groove. Adopt above-mentioned structure to the installation motor is convenient for.

Preferably, the method comprises the following steps: and a flexible shaft clamping block is arranged in the flexible shaft mounting groove. By adopting the structure, the flexible shaft is convenient to clamp.

Compared with the prior art, the beneficial effects of the utility model are that:

adopt the utility model provides an inclination adjustment mechanism for official working seat, the seat supports reliably, adjusts convenient, long service life, and can carry out the automatically regulated at seat inclination, is rich in senior sense, the effectual user experience that has improved.

Drawings

FIG. 1 is a schematic view of an office chair;

FIG. 2 is an exploded view of the seat adjustment position;

FIG. 3 is a schematic view of the interior of the gearbox;

FIG. 4 is a bottom view of the office chair;

fig. 5 is an enlarged view of a partial structure of the cage.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

As shown in fig. 1 and 2, a reclining mechanism for an office chair, which is constructed by a bracket 1 and a support assembly 2 rotatably mounted on the bracket 1, wherein the supporting component 2 consists of a seat supporting component 2a, a backrest supporting component 2b and armrests 2c, the middle parts of the armrests 2c are rotatably connected at the top ends of the brackets 1, the number of the brackets 1 is two, the symmetric distribution is in the left and right sides of supporting component 2, and the inboard fixed mounting of support 1 has arc rack 3, and drive assembly 5 and gear box 4 are installed to the lower surface of seat support component 2a, and the power take off end of gear box 4 is equipped with the gear 6 with arc rack 3 engaged with, and drive assembly 5 drive gear box 4 operation can make gear 6 and arc rack 3 take place interact to drive supporting component 2 rotates for support 1, accomplishes the regulation at seat inclination promptly.

As shown in fig. 3 and 4, a worm wheel 4a and a worm 4b are arranged in the gear box 4, the worm wheel 4a is sleeved with an output shaft 4c, the gear 6 is fixedly mounted on the output shaft 4c, a power input port 4d is arranged at the end of the worm 4b, the driving component 5 is composed of a motor 5a and a flexible shaft 5b, one end of the flexible shaft 5b is connected to the motor 5a, and the other end of the flexible shaft 5b is connected to the power input port 4d of the worm 4 b.

As shown in fig. 4, the gear box 4 is fixed on the lower surface of the seat supporting member 2a through a fixing frame 8, the driving assembly 5 is fixed on the lower surface of the seat supporting member 2a through a retaining frame 7, the gear boxes 4 are arranged at the left end and the right end of the lower surface of the seat supporting member 2a, the motor 5a is also a dual-output motor, and two output ends of the motor are respectively connected with the corresponding gear boxes 4 through flexible shafts 5b, so that the supporting assemblies 2 can be synchronously driven to rotate at the two ends of the seat, the stress distribution is more uniform, and the smoothness of seat adjustment is better.

Furthermore, the retainer 7 is n-shaped, a motor mounting groove 7a is formed in the middle of the retainer, flexible shaft mounting grooves 7b extending in opposite directions are formed in the directions corresponding to the two ends of the motor mounting groove 7a, the motor 5a is buckled in the motor mounting groove 7a, the flexible shaft 5b is buckled in the flexible shaft mounting groove 7b, power is transmitted through the worm wheel 4a and the worm 4b in the gear box 4, vertical power output between the flexible shaft 5b and the output shaft 4c is guaranteed, and the seat can be kept fixed by the self-locking effect of the worm wheel 4a and the worm 4b when the seat is not adjusted.

As shown in fig. 5, in order to facilitate the installation of the motor 5a and the flexible shaft 5b, two ends of the motor mounting groove 7a are respectively provided with a motor fixing hole 7c and a motor clamping groove 7d, and a flexible shaft clamping block 7e is arranged in the flexible shaft mounting groove 7 b.

As shown in fig. 2 and 3, the bracket 1 is provided with an arc-shaped hole 1a at a position corresponding to the arc-shaped rack 3, the end of the gear 6 is provided with a protrusion 6a extending outwards, and the protrusion 6a is slidably disposed in the arc-shaped hole 1a, so that the gear 6 can be continuously engaged with the arc-shaped rack 3 when rotating.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims

1. A recliner mechanism for office chairs comprising a support (1) and a support assembly (2) rotatably mounted on said support (1), characterized in that: be equipped with arc rack (3) on support (1), install gear box (4) on supporting component (2), the power take off of this gear box (4) be equipped with gear (6) of arc rack (3) meshing to connect drive assembly (5) at power take off to rotate through this gear box (4) drive gear (6).

2. The reclining mechanism for an office seat as set forth in claim 1, wherein: the support assembly (2) comprises a seat support part (2a) and a backrest support part (2b), wherein the backrest support part (2b) is provided with an armrest (2c), and the middle part of the armrest (2c) is rotatably mounted at the upper end of the bracket (1).

3. The reclining mechanism for an office seat as set forth in claim 2, wherein: a worm wheel (4a) and a worm (4b) which are meshed with each other are arranged in the gear box (4), an output shaft (4c) is sleeved on the worm wheel (4a), the gear (6) is fixedly installed on the output shaft (4c), and a power input port (4d) is arranged at the end part of the worm (4 b).

4. The recliner mechanism for an office seat of claim 3, wherein: the driving assembly (5) comprises an electric motor (5a), and the electric motor (5a) is connected with the worm (4b) through a flexible shaft (5 b).

5. The recliner mechanism for an office seat of claim 4, wherein: support (1) distributes in the left and right sides of seat support component (2a), gear box (4) are all installed at the both ends of seat support component (2a) downside, motor (5a) are dual output motor, pass through respectively between its two output and the gear box (4) that correspond flexible axle (5b) are connected.

6. The recliner mechanism for an office seat of claim 5, wherein: the lower side of the seat supporting component (2a) is provided with a retainer (7), the retainer (7) is n-shaped, the retainer (7) is provided with a motor mounting groove (7a) and a flexible shaft mounting groove (7b) extending from two ends of the motor mounting groove (7a) to opposite directions.

7. The reclining mechanism for an office seat according to any one of claims 1 to 6, wherein: the position that support (1) corresponds arc rack (3) is equipped with arc hole (1a), the tip of gear (6) is equipped with outside extension's bulge (6a), and this bulge (6a) slide to be set up in arc hole (1 a).

8. The recliner mechanism for an office seat of claim 6, wherein: the motor mounting groove (7a) is arranged in the middle of the holder (7), and the two ends of the motor mounting groove (7a) are respectively provided with a motor fixing hole (7c) and a motor clamping groove (7 d).

9. The recliner mechanism for an office seat of claim 8, wherein: a flexible shaft clamping block (7e) is arranged in the flexible shaft mounting groove (7 b).