CN109288296B - Office chair inclination control device capable of rebounding slowly by utilizing clearance movement - Google Patents
Office chair inclination control device capable of rebounding slowly by utilizing clearance movement Download PDFInfo
- Publication number
- CN109288296B CN109288296B CN201811249612.9A CN201811249612A CN109288296B CN 109288296 B CN109288296 B CN 109288296B CN 201811249612 A CN201811249612 A CN 201811249612A CN 109288296 B CN109288296 B CN 109288296B
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- Prior art keywords
- rod
- swing
- seat cushion
- backrest
- transmission
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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
- A47C7/00—Parts, details, or accessories of chairs or stools
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
- A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
Abstract
The invention discloses an office chair tilt control device utilizing clearance motion to rebound slowly, which structurally comprises a backrest, armrests, a lifting column, an adjusting handle, five-star legs, a seat cushion and an adjusting control system, wherein the backrest and the seat cushion are mechanically connected into a movable hinge-shaped structure, the armrests are respectively and mechanically connected to the orientation of the backrest and the two sides of the seat cushion, the lifting column is movably matched at the center position of the bottom of the seat cushion through the adjusting control system, the invention utilizes a triangular structure formed by a rotating disc, a swinging rod and a fixed diagonal rod, the swinging rod presses backwards, the rotating disc slowly rotates under the pressure of the fixed diagonal rod and is simultaneously meshed with a first meshed gear disc and a second meshed gear disc, meanwhile, each meshed gear disc is meshed with a screw rod to press a louver swinging mechanism rightwards, the louver swinging mechanism inclines rightwards, and the louver swinging mechanism stops inclining when the louver swinging mechanism is pressed to a certain angle, the backrest can realize the maximum tilting angle.
Description
Technical Field
The invention relates to an office chair, in particular to an office chair tilting control device capable of rebounding slowly by utilizing clearance motion.
Background
The office chairs used at present all have the function of backrest inclination angle adjustment, the function mainly depends on the cooperation of a ratchet mechanism, a cam mechanism, a return spring, a locking mechanism and the like to realize the inclination angle adjustment, and most of the functions depend on the elasticity of the spring in the rebound process, but the functions depend on the elasticity of the spring to easily cause:
the spring is only an energy accumulator, and it has the function of storing energy, and when the back of office chair was faced back, the spring was pressed, when needs back the accentuation, the spring was based on elastic action, rebounds rapidly, and under this stronger bounce-back effect, the back leaned forward rapidly, impacted human back easily, caused the phenomenon of human back vertebra damage to take place, and the practicality is relatively poor.
Disclosure of Invention
In view of the above problems, the present invention provides a tilt control device for an office chair that rebounds slowly using a gap motion.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an utilize clearance motion and slow rebound's office chair control device that leans on, its structure includes back, handrail, lift post, adjustment handle, five star feet, seatpad, regulation control system, back and seatpad mechanical connection become mobile hinge shape structure, at the orientation of back and the both sides of seatpad respectively mechanical connection have the handrail the bottom central point of seatpad puts through the regulation control system clearance fit who is equipped with the lift post, be equipped with regulation and control regulation control system's adjustment handle on the lift post, the minimum end position department bolted connection that is located the lift post has five star feet, inside pendulum rod and the fixed down tube that is equipped with the mutual activity scarf joint respectively of bottom of back.
As a further improvement of the present invention, the adjusting and controlling system includes a transmission rotating rod, a rotating disc, a first meshing gear disc, a second meshing gear disc, a screw, a base, and a louver oscillating mechanism, the transmission rotating rod is installed inside the seat cushion, and is meshed with the transmission teeth on the circumferential profile surface of the rotating disc and is coaxially installed, the first meshing gear disc and the second meshing gear disc are located at the gap between the two sides of the rotating disc and the screw and are respectively meshed with the transmission teeth and the screw installed on the two sides of the rotating disc, and the base is installed at the bottom of the screw and is in transmission fit with the louver oscillating mechanism installed on the base.
As a further improvement of the invention, the right end of the shutter swinging mechanism is in contact fit with the driving end of the adjusting handle nested on the base.
As a further improvement of the invention, the louver swing mechanism comprises swing blades, a swing axle center, louver transmission rods and linkage shafts, wherein the louver transmission rods and the linkage shafts are arranged on one side, far away from the screw, in the base, more than two swing blades are arranged and are rotatably connected in the base through the integrated swing axle center, and the linkage shafts are matched between every two louver transmission rods and the linkage shafts.
As a further improvement of the invention, the adjusting handle comprises a rotating wheel and a triangular swing rod, a convergence point of the triangular swing rod is rotatably connected to the axis of the rotating wheel, and one end of each branch of the triangular swing rod, which is far away from the axis, is of an arc structure and is in contact with the screw rod.
As a further improvement of the invention, the position of the transmission rotating rod, which is far away from the axle center of the rotating disk, is fixed together with the swing rod in a triangular manner through a fixed inclined rod connected by a bolt.
As a further improvement of the invention, the bottom end of the swing rod is arranged to be of an arc structure and is contacted with the transmission rotating rod.
As a further improvement of the invention, the linkage shaft is in a bone-shaped structure formed by fixing round wheels at the head end and the tail end of the connecting shaft respectively, and the round wheels are in contact with the swinging blades respectively.
Compared with the prior art, the invention has the following beneficial effects:
the invention utilizes a triangular structure formed by a rotary disc, a swing rod and a fixed diagonal rod, the swing rod is pressed backwards, the rotary disc slowly rotates under the pressure of the fixed diagonal rod and is simultaneously meshed with a first meshed gear disc and a second meshed gear disc, meanwhile, each meshed gear disc is meshed with a screw rod to press a louver swinging mechanism rightwards, the louver swinging mechanism inclines rightwards, when the louver swinging mechanism stops inclining when the louver swinging mechanism is pressed to a certain angle, and the backrest can realize the maximum inclining angle.
According to the design of the shutter swinging mechanism, the swinging blades are matched with the rotating wheel and the triangular swinging rod, the triangular swinging rod can be matched with the inclined angle of the swinging blades to change synchronously, a driving force is provided for the rebounding of the swinging blades, the rotating disc is driven to rotate slowly when the inclined angle of the swinging blades is restored, and the problem that the spine of the back of a human body is damaged due to the large rebounding buffering force of the spring is solved.
According to the invention, the first meshing gear disc and the second meshing gear disc are arranged on different sides, so that synchronous movement is fully matched with the screw rod, and the stability of inclination angle adjustment is promoted.
The swinging blades of the invention rely on the screw rod and the triangular swinging rod as driving forces, and the gap between every two swinging blades is 10cm, therefore, the resilience force can be effectively reduced in a larger range of the gap, and the swinging blades are related to each other, thereby preventing the resetting from being in place at one time and having stronger practical safety.
Drawings
Fig. 1 is a schematic structural view of a device for controlling the tilt of an office chair, which uses a gap motion to make a slow rebound according to the present invention.
Fig. 2 is a schematic side view of a tilt control device of an office chair using a gap motion to make the chair slowly rebound according to the present invention.
Fig. 3 is a schematic diagram of the internal components of the regulating and controlling system of the present invention.
Fig. 4 is a schematic structural diagram of the louver oscillating mechanism of the present invention.
In the figure: the device comprises a backrest-1, an armrest-2, a lifting column-3, an adjusting handle-4, five-star feet-5, a seat cushion-6, an adjusting control system-7, a swing rod-11, a fixed inclined rod-12, a transmission rotating rod-71, a rotating disk-72, a first meshing gear disk-73, a second meshing gear disk-74, a screw rod-75, a base-76, a louver swinging mechanism-77, a swinging vane-770, a swinging shaft center-771, a louver transmission rod-772, a linkage shaft-773, a rotating wheel-41 and a triangular swing rod-42.
Detailed Description
In order to make the technical means, the creation features, the achievement objects and the effects of the present invention easy to understand, fig. 1 to 4 schematically show the structure of the office chair tilt control device according to the embodiment of the present invention, and the present invention will be further described with reference to the following detailed description.
Examples
As shown in figures 1-4, the invention provides an office chair inclination control device utilizing clearance movement to rebound slowly, the structure of the device comprises a backrest 1, armrests 2, a lifting column 3, an adjusting handle 4, five-star legs 5, a seat cushion 6 and an adjusting control system 7, wherein the backrest 1 and the seat cushion 6 are mechanically connected into a movable hinge-shaped structure, the armrests 2 are respectively and mechanically connected with the two sides of the seat cushion 6 in the direction of the backrest 1, the lifting column 3 is movably matched with the bottom center position of the seat cushion 6 through the adjusting control system 7, the adjusting handle 4 for adjusting and controlling the adjusting control system 7 is arranged on the lifting column 3, the five-star legs 5 are connected with the lowest end position of the lifting column 3 through bolts, a swing rod 11 and a fixed inclined rod 12 which are movably embedded with each other are respectively arranged inside the bottom end of the backrest 1, and the adjusting control system 7 comprises a transmission rotating rod 71, The adjustable seat cushion comprises a rotary disc 72, a first meshing gear disc 73, a second meshing gear disc 74, a screw 75, a base 76 and a louver swing mechanism 77, wherein the transmission rotary rod 71 is installed inside the seat cushion 6, and is meshed with transmission teeth on the circumferential profile surface of the rotary disc 72 and coaxially installed, the first meshing gear disc 73 and the second meshing gear disc 74 are located at the gap between the two sides of the rotary disc 72 and the screw 75 and are respectively meshed with the transmission teeth and the screw 75 installed on the two sides of the rotary disc 72, the base 76 is installed at the bottom of the screw 75 and is in transmission fit with the louver swing mechanism 77 arranged on the base 76, the right end of the louver swing mechanism 77 is in contact fit with the driving end of an adjusting handle 4 embedded on the base 76, the louver swing mechanism 77 comprises a swinging vane 772, a swinging axis 771, a louver transmission rod and a linkage shaft 773, the louver transmission rod and the linkage shaft 773 are installed on one side, far away from the screw 75, inside the base, more than two swinging blades 770 are arranged and rotatably connected in the base 76 through an integrated swinging shaft 771, and a linkage shaft 773 is matched between every two swinging blades.
The adjusting handle 4 comprises a rotating wheel 41 and a triangular swing rod 42, a convergence point of the triangular swing rod 42 is rotatably connected to the axis of the rotating wheel 41, and one end, away from the axis, of each branch of the triangular swing rod 42 is of an arc-shaped structure and is in contact with the screw 75.
The transmission rotating rod 71 is far away from the axis position of the rotating disc 72 and is fixed with the swing rod 11 in a triangular mode through a fixed inclined rod 12 connected through a bolt.
Wherein, the bottom end of the swing link 11 is designed into an arc structure and contacts with the transmission rotating rod 71.
The linkage shaft 773 is a bone-shaped structure formed by fixing round wheels at the head and tail ends of the connecting shaft, and each round wheel is in contact with the swinging vane 770.
The working principle of the office chair inclination control device in the above technical solution is explained as follows:
when a user needs to lie down, the adjusting handle 4 is pulled upwards, one branch of the triangular swing rod 42 rotates to the bottom of the swing blade 770 by matching with the screw rod 75, the user presses the backrest backwards, the swing rod 11 gradually changes from the initial vertical state, due to the triangular fixing structure formed by the swing rod 11, the fixed inclined rod 12 and the transmission rotating rod 71, when the angle of the swing rod 11 changes, the transmission rotating rod 71 simultaneously presses the rotating disc 72 downwards, so that the first meshing gear disc 73 and the second meshing gear disc 74 which are in transmission matching with the rotating disc 72 drive the screw rod 75 to rotate, besides, under the drive of the screw rod 75, the swing blade 770 tilts rightwards, and is clamped and stopped when contacting with the branch of the triangular swing rod 42 rotating to the bottom, and the lying angle is the maximum at the moment.
When a user needs to be a vertical left-standing backrest, the adjusting handle 4 is pressed downwards to restore, the triangular swing rod 42 is restored to provide an upward driving force for the swing blade 770, so that the swing blade 770 is slowly restored leftwards, a larger gap exists between the swing blades 770, the gap enables the intermittent type during restoration, the swing blade 770 drives the screw rod 75 to rotate layer by layer, then the rotary disc 72 is slowly restored, the transmission rotary rod 71 is upwards jacked up the swing rod 11, the backrest rebounds, the buffering speed in the whole rebounding process is lower, and therefore the situation that the spine of the back of the human body is injured is avoided.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. The utility model provides an utilize clearance motion and slow rebound's office chair control device that leans on, its structure includes back (1), handrail (2), lift post (3), adjustment handle (4), five star foot (5), seatpad (6), regulation control system (7), its characterized in that:
the backrest (1) and the seat cushion (6) are mechanically connected to form a movable hinge-shaped structure, handrails (2) are respectively and mechanically connected to two sides of the backrest (1) facing the seat cushion (6), a lifting column (3) is movably matched at the center of the bottom of the seat cushion (6) through an adjusting control system (7), an adjusting handle (4) for adjusting and controlling the adjusting control system (7) is arranged on the lifting column (3), a five-star foot (5) is connected to the lowest end of the lifting column (3) through a bolt, and a swing rod (11) and a fixed inclined rod (12) which are movably embedded with each other are respectively arranged inside the bottom end of the backrest (1);
the adjusting and controlling system (7) comprises a transmission rotating rod (71), a rotating disc (72), a first meshing gear disc (73), a second meshing gear disc (74), a screw rod (75), a base (76) and a shutter swinging mechanism (77), wherein the transmission rotating rod (71) is installed inside the seat cushion (6), meshed with transmission teeth on the circumferential profile surface of the rotating disc (72) and coaxially installed, the first meshing gear disc (73) and the second meshing gear disc (74) are located at the two sides of the rotating disc (72) and in a gap with the screw rod (75) and are respectively meshed with the transmission teeth and the screw rod (75) installed on the two sides of the rotating disc (72), and the base (76) is installed at the bottom of the screw rod (75) and is in transmission fit with the shutter swinging mechanism (77) arranged on the base (76);
the right end of the shutter swinging mechanism (77) is in contact fit with the driving end of an adjusting handle (4) nested on the base (76);
the louver swing mechanism (77) comprises more than two swinging blades (770), a swing shaft center (771), louver transmission rods (772) and a linkage shaft (773), wherein the louver transmission rods (772) and the linkage shaft (773) are arranged on one side, far away from the screw rod (75), of the interior of the base (76), the swinging blades (770) are rotatably connected into the base (76) through the integrated swing shaft center (771), and the linkage shaft (773) is matched between every two adjacent swinging blades (770).
2. An office chair tilt control device using backlash for slow rebound according to claim 1, wherein: adjustment handle (4) are including rotating wheel (41), triangle pendulum rod (42), the convergent point of triangle pendulum rod (42) rotates and connects the axle center at rotating wheel (41), and the one end that the axle center was kept away from in each branch of triangle pendulum rod (42) is the arc structure, contacts in screw rod (75).
3. An office chair tilt control device using backlash for slow rebound according to claim 1, wherein: the transmission rotating rod (71) is far away from the axis position of the rotating disc (72) and is fixed with the swing rod (11) in a triangular mode through a fixed inclined rod (12) connected through a bolt.
4. An office chair tilt control device using backlash for slow rebound according to claim 3, wherein: the bottom end of the swing rod (11) is of an arc structure and is in contact with the transmission rotating rod (71).
5. An office chair tilt control device using backlash for slow rebound according to claim 1, wherein: the linkage shaft (773) is in a bone-shaped structure formed by round wheels fixed at the head end and the tail end of the connecting shaft, and the round wheels are respectively contacted with the swing blades (770).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811249612.9A CN109288296B (en) | 2018-10-25 | 2018-10-25 | Office chair inclination control device capable of rebounding slowly by utilizing clearance movement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811249612.9A CN109288296B (en) | 2018-10-25 | 2018-10-25 | Office chair inclination control device capable of rebounding slowly by utilizing clearance movement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109288296A CN109288296A (en) | 2019-02-01 |
| CN109288296B true CN109288296B (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811249612.9A Active CN109288296B (en) | 2018-10-25 | 2018-10-25 | Office chair inclination control device capable of rebounding slowly by utilizing clearance movement |
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| Country | Link |
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| CN (1) | CN109288296B (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2066684U (en) * | 1990-01-22 | 1990-12-05 | 浙江省安吉金属制品总厂 | Mechanical lifting rotatable chair |
| US5582459A (en) * | 1993-09-30 | 1996-12-10 | Itoki Crebio Corporation | Chair having tiltable seat back |
| JP4064679B2 (en) * | 2002-02-05 | 2008-03-19 | コクヨ株式会社 | Chair |
| US8708409B2 (en) * | 2009-01-21 | 2014-04-29 | Ts Tech Co., Ltd. | Vehicle seat |
| CN201426538Y (en) * | 2009-06-26 | 2010-03-24 | 王小兵 | Tilting office chair |
| CN201769712U (en) * | 2010-08-11 | 2011-03-23 | 山东科技大学 | Seat of motor coach bus |
| CN102599746A (en) * | 2012-04-11 | 2012-07-25 | 上海埃珂托塑胶有限公司 | Leisure chair for offices |
| USD697726S1 (en) * | 2012-09-20 | 2014-01-21 | Steelcase Inc. | Chair |
| CN204599907U (en) * | 2015-04-20 | 2015-09-02 | 宋威 | A kind of dual-purpose office Folding swivel chair |
| CN206333618U (en) * | 2016-05-05 | 2017-07-18 | 田雨沛 | A kind of office chair with adjustable backrest |
| CN206314864U (en) * | 2016-08-24 | 2017-07-11 | 徐进华 | Chair |
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2018
- 2018-10-25 CN CN201811249612.9A patent/CN109288296B/en active Active
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| CN109288296A (en) | 2019-02-01 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20210608 Address after: 4 / F and 5 / F, block a, 12 Lianxin Road, Wanggang village committee, Longjiang Town, Shunde District, Foshan City, Guangdong Province, 528318 Applicant after: Foshan Shunde Tanlin Furniture Co.,Ltd. Address before: Support 530021 Nanning Road, the Guangxi Zhuang Autonomous Region No. 22 Applicant before: Huang Xinquan |
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| GR01 | Patent grant |