WO2015043474A1 - Mécanisme d'actionnement de console pour châssis de chaise à bascule - Google Patents

Mécanisme d'actionnement de console pour châssis de chaise à bascule Download PDF

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Publication number
WO2015043474A1
WO2015043474A1 PCT/CN2014/087322 CN2014087322W WO2015043474A1 WO 2015043474 A1 WO2015043474 A1 WO 2015043474A1 CN 2014087322 W CN2014087322 W CN 2014087322W WO 2015043474 A1 WO2015043474 A1 WO 2015043474A1
Authority
WO
WIPO (PCT)
Prior art keywords
bracket
pin
base
pin shaft
shaft
Prior art date
Application number
PCT/CN2014/087322
Other languages
English (en)
Chinese (zh)
Inventor
何基
阮正富
Original Assignee
浙江永艺家具股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 浙江永艺家具股份有限公司 filed Critical 浙江永艺家具股份有限公司
Publication of WO2015043474A1 publication Critical patent/WO2015043474A1/fr

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Classifications

    • 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
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03255—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs
    • 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
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03272—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs
    • 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
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03294—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers

Definitions

  • the invention relates to the technical field of a swivel chair and an office chair, in particular to a bracket driving mechanism for a swivel chair chassis.
  • the swivel chair chassis also known as the swivel chair tray, is an important part under the swivel seat cushion. The lifting of the seat cushion and the tilting angle adjustment of the backrest are all done by the chassis.
  • the current swivel chair tray is generally composed of upper tray, lower joist, rotating shaft and spring device. After the upper dial and the swivel seat are fixed on the back, the swivel chair can be tilted around the rotating shaft and can actively respond to the user. Have a sense of comfort.
  • a tray (patent number: 02287885.8), which mainly comprises a bottom plate, a movable seat, a conical tube and an adjusting device.
  • the movable seat is movably connected to the bottom plate, and a conical tube connecting the gas bar in the middle of the movable seat is connected.
  • the cone fixing plate and the conical tube are welded together on the movable seat;
  • the adjusting device comprises an adjusting rod, an adjusting plate, a torsion spring a, a torsion spring a fixing plate, the adjusting rod is inserted in the movable seat, the adjusting plate
  • the fixed connection is connected to one end of the adjusting rod inserted into the movable seat, one side of the adjusting plate contacts the gas pressure bar, the other side is connected with the torsion spring a; and the other side of the adjusting plate is provided with an adjusting plate stopping piece.
  • the adjustment device of the above-mentioned swivel chair tray is completely adjusted by the torsion spring.
  • the force of the torsion spring required is different, so that the product does not have good versatility.
  • the Chinese patent of the "201020264417.6" patent discloses a rolling shaft adjustment swivel chair tray which utilizes the gravity transmitted on the seat surface to transmit the restoring force of the backrest, and can basically achieve the use of people who meet different body weights without Adjustment.
  • the problem with the above chassis is that during the backward tilting of the human body, under the same seat gravity loading condition, the restoring torque of the chassis is gradually reduced or remains unchanged, and is applied to the seat back during the tilting process.
  • the pressure becomes larger, the driving force becomes larger, the recovery force is insufficient to counteract the driving force, and the restoring force is too dependent on the elastic recovery of the elastic reset device, so the applicable crowd is limited, and the person with a light weight is difficult to lean, and the weight is heavier. It is difficult for people to get up after they have fallen.
  • Such a chassis general frame includes a base for connecting the air rod, a bracket for fixing the seat, and a rocker for connecting the back of the seat, and the bracket is driven by the rocker to reset the bracket, the bracket or the tilt
  • the board is connected with an elastic reset device.
  • the drive mechanism of the bracket is the design focus, which is the key to solving the above problems.
  • the present invention overcomes the deficiencies in the prior art described above, and provides a bracket driving mechanism that can provide a reasonable restoring force during the movement of the bracket; thereby loading the seat back on the seat during the tilting process.
  • the ratio of gravity transmission to the backrest restoring force is gradually increased, and a reasonable backrest restoring force is always provided throughout the process, so that people who are lighter or heavier can easily lean back and return to get up.
  • a bracket driving mechanism for a swivel chair chassis includes a base for connecting a gas rod, a bracket for fixing the seat, and a rocker for connecting the back of the chair, wherein the bracket and the rocker are disposed in the base.
  • the middle part of the rocker is hinged to the base through the first pin shaft, and the front part of the rocker is provided with a first link and a second link, one end of the first link is hinged with the front end of the rocker, and the other end of the first link is One end of the two links is hinged through the third pin shaft and the third pin shaft is connected to the bracket, and the other end of the second link is hinged to the base through the second pin shaft, and the first pin is symmetrically opened on both sides of the bracket
  • the shaft is matched with a track groove for guiding the movement track of the bracket.
  • the first pin shaft is disposed in the track groove, and the rocker rotates through the first and second links to drive the carriage to move along the track of the track groove.
  • the second pin has two forms that do not interfere with the movement of the carriage.
  • the second pin is coupled to the base after passing or avoiding the bracket.
  • a hollow groove that cooperates with the second pin shaft to avoid the second pin shaft during the movement of the bracket is symmetrically disposed on both sides of the bracket, and the second pin shaft is disposed in the hollow groove.
  • Hollow slots are formed on both sides of the bracket so that the bracket is not obstructed by the second pin when it is moving.
  • the portion of the bracket that interferes with the second pin shaft is cut away such that the bracket avoids the second pin.
  • the first pin shaft is a long axis, and both ends of the first pin shaft are respectively connected to the base after passing through the rocker and the track groove. This ensures that it provides sufficient strength to allow the rocker to rotate freely.
  • the first pin shaft is two independent short shafts, and two brackets are fixedly arranged on the base, and one end of each short shaft passes through the rocker and the track slot in turn, and is connected to the base, and each The other end of the stub shaft is inserted into the corresponding bracket.
  • the interior of the base is more compact, and the first pin shaft is supported by the bracket to meet the strength requirement.
  • the second pin shaft is an entire long shaft, and both ends of the second pin shaft are sequentially connected to the base through the second connecting rod and the hollow groove. This also ensures that it provides sufficient strength to allow the second link to rotate freely.
  • the second The pin shaft is an entire long shaft, and both ends of the second pin shaft are respectively inserted into the second shaft hole through the second link.
  • the second pin shaft is two independent small shafts, and two supports are fixedly fixed on the base, and one end of each small shaft passes through the second connecting rod and the hollow slot in sequence, and is connected to the base. The other end of each small shaft is inserted into the corresponding support.
  • the use of such a structure makes the interior of the base more compact, and can avoid the elastic reset device from being obstructed, and the second pin shaft is supported by the support to meet the strength requirement.
  • the second The pin shaft is two independent small shafts, and two supports are fixedly arranged on the base. One end of each small shaft passes through the second link and is connected with the base, and the other end of each small shaft is inserted in the corresponding Inside the support.
  • connection of the first pin shaft to the base means that the first shaft hole is symmetrically disposed on both sides of the rear end of the base, and the first pin shaft is inserted in the first shaft hole.
  • connection of the second pin shaft to the base means that the second shaft hole is symmetrically disposed on both sides of the front end of the base, and the second pin shaft is inserted into the second shaft hole.
  • the attachment of the third pin to the bracket means that the third pin is inserted into the bracket.
  • the third pin can drive the carriage to move synchronously.
  • the base comprises a bottom plate for connecting the gas rods, and a support plate is respectively arranged in a vertical direction on the left and right sides of the bottom plate, and the support plate is fixedly connected with the bottom plate, and the first pin shaft and the second pin shaft are
  • the support plate of the base is connected;
  • the bracket comprises two substrates arranged in parallel and arranged in a vertical direction, the substrate is attached to the support plate, and the upper end of the substrate is bent to form a support plate for connecting the seat, in two substrates
  • a connecting plate is fixedly connected between the two substrates.
  • the base encloses the bracket therein, the structure is reasonable, and the overall appearance is more beautiful.
  • the first link from bottom to top is disposed obliquely toward the rocker, and the second link from the bottom to the top is inclined toward the direction away from the rocker, in the bracket During the movement, the angle between the second link and the vertical line does not exceed 90 degrees.
  • the back of the human body applies a driving force to the backrest connected to the rocker, and the rocker rotates to move the connecting rod, so that the angle between the second connecting rod and the vertical line gradually increases.
  • the angle between the two links and the horizontal line is gradually reduced, and the component of the rotational force applied by the bracket to the second link is increased, thereby realizing the gradual increase of the restoring moment of the rocker and the link mechanism by gravity loading, and As the driving force of the backrest is gradually increased, the restoring force is less dependent on the elastic restoring force of the elastic resetting device, and is suitable for the needs of different fat and thin people.
  • the track grooves and the hollow grooves described above from the bottom are inclined toward the direction of the rocker.
  • a bracket driving mechanism for a swivel chair chassis includes a base for connecting a gas rod, a bracket for fixing the seat, and a rocker for connecting the back of the chair, wherein the bracket and the rocker are disposed in the base.
  • the middle part of the rocker is hinged to the base through the first pin shaft, and the front part of the rocker is provided with a first link and a second link, one end of the first link is hinged with the front end of the rocker, and the other end of the first link is One end of the two links is hinged through the third pin shaft and the third pin shaft is connected to the bracket, and the other end of the second link is hinged to the base through the second pin shaft, and is symmetrically opened on both sides of the bracket for guiding the bracket
  • the track groove of the movement track is provided with a guide shaft matched with the track groove on the base, the guide shaft is inserted in the track groove, and the rocker rotates through the first and second links to drive the track along the track groove motion. In this manner
  • the first pin is connected to the base after passing through or avoiding the bracket, and likewise, the second pin is connected to the base after passing through or avoiding the bracket.
  • the first pin nor the second pin interferes with the movement of the bracket.
  • the first pin passes through the bracket, and the first pin is symmetrically opened on both sides of the bracket, and the first pin is engaged with the first pin to avoid the first pin when the bracket moves.
  • the shaft is disposed in the hollow slot; the first pin avoiding the bracket means that the portion of the bracket that interferes with the first pin shaft is cut off so that the bracket avoids the first pin shaft.
  • the second pin passing through the bracket means that the hollow pin 2 for engaging the second pin shaft during the movement of the bracket is symmetrically opened on both sides of the bracket, and the second pin is The shaft is disposed in the hollow groove 2; the second pin avoiding the bracket means that the portion of the bracket that interferes with the second pin shaft is cut off so that the bracket avoids the second pin.
  • the bracket driving mechanism of the present invention can match the reclining restoring force of the seat back according to the weight of the human body, so that people who are light or heavy can easily recline and get up.
  • the pin shaft, the rocker, the first link and the second link of each hinge point of the present invention form a four-point linkage mechanism to form a force transmission
  • the seat back connection is fixed to the rocker as a four-point linkage mechanism.
  • the driving force of the human body is applied to the seat by the third pin shaft hinged to the bracket to form a restoring force applied to the four-point link mechanism, and the driving force and the restoring force of the four-point link mechanism form a confrontational relationship.
  • the angle between the second link of the four-point linkage mechanism of the present invention and the horizontal line is gradually reduced, and the rotational force component of the bracket applied to the second link is increased, thereby realizing Gravity loading gradually increases the restoring moment of the four-bar linkage mechanism, and is opposed to the gradually increasing driving force.
  • the restoring force is less dependent on the elastic restoring force of the elastic resetting device, and the applicable population is wider, the weight is lighter or Heavy people can easily lean back and get up.
  • the seat equipped with the bracket driving mechanism and the chassis of the present invention in the process of leaning back, the seat also moves backwards following the rotation of the seat back, so that the back waist support always fits the back of the human body.
  • the seat in the process of leaning back, the seat also moves backwards following the rotation of the seat back, so that the back waist support always fits the back of the human body.
  • the seat Corresponding position, avoiding the back waist support from the waist of the human body to produce a waist suspension, and also avoiding friction between the clothes and the seat back.
  • FIG. 1 is a schematic perspective structural view of a chassis of the present invention in Embodiment 1;
  • FIG. 2 is a perspective view showing the perspective of another embodiment of the chassis of the present invention in Embodiment 1;
  • Figure 3 is a schematic view showing the rocker and the bracket in the initial state in the first embodiment
  • FIG. 4 is a schematic view showing the rocker and the bracket in the up state in the first embodiment
  • Figure 5 is a schematic view showing the disassembled structure of the bracket and the base in the first embodiment
  • FIG. 6 is a schematic view showing the split structure of the bracket and the base at another angle in the embodiment 1;
  • FIG. 7 is a schematic perspective structural view of a chassis in Embodiment 2.
  • Figure 8 is a schematic view showing the disassembled structure of the bracket and the base in the second embodiment
  • Figure 9 is a schematic view of a person sitting on a swivel chair in an unsinkable state
  • Figure 10 is a schematic view showing a state in which a person sits on a swivel chair and leans back;
  • FIG 11 is a perspective view showing the structure of the chassis of Embodiment 3.
  • Figure 12 is a schematic view showing the disassembled structure of the chassis in the third embodiment.
  • Embodiment 1 Firstly, the reference orientation of each component of the present invention is defined.
  • the front of the swivel chair is the front end
  • the rear of the swivel chair includes the backrest at the rear end
  • the front end of the chassis is far away.
  • the rear end of the chassis is the area near the rocker.
  • a bracket driving mechanism for a swivel chair chassis includes a base for connecting a gas rod, a bracket 2 for fixing the seat, and a rocker 3 for connecting the seat back.
  • the frame 2 and the rocker 3 are disposed in the base 1; specifically, the base 1 includes a bottom plate 4 for connecting the gas rods, and a support plate 5 is arranged on each of the left and right sides of the bottom plate 4 in a vertical direction.
  • the plate 5 is fixedly connected to the bottom plate 4, and the bottom plate 4 supports the entire chassis and the seat and the back;
  • the bracket 2 includes two substrates 6 arranged in parallel and arranged in a vertical direction, and the substrate 6 is attached to the support.
  • the upper end of the substrate 6 is bent to form a support plate 7 for connecting the seat, and the connecting plate 8 is fixedly connected between the two substrates 6.
  • the connecting plate 8 can be multiple, and the connecting plate 8 connects the two substrates 6. The connection is fixed, and the rocker 3 is disposed between the two substrates 6.
  • a first shaft hole 9 and a second shaft hole 10 are symmetrically disposed at a rear end and a front end of the support plate 5 on both sides of the base 1.
  • the first pin 11 is inserted in the middle of the rocker 3 and the rocker 3 is the first pin 11
  • the first pin 11 is a long axis, and both ends of the first pin 11 are respectively inserted through the rocker 3 and the bracket 2 and inserted into the first shaft hole 9;
  • the first link 13 and the second link 14 are symmetrically disposed on both sides of the front portion of the plate 3.
  • the first link 13 from the bottom to the top is inclined toward the direction of the rocker 3.
  • the second link 14 from the bottom to the top is inclined toward the direction away from the rocker 3, and the angle between the second link 14 and the vertical line does not exceed 90 during the movement of the bracket 2 degree.
  • first link 13 is hinged to the front end of the rocker 3 through the fourth pin shaft 16, and the other end of the first link 13 is hinged to the end of the second link 14 via the third pin 15 and the third pin 15 is interspersed.
  • the other end of the second link 14 is pierced with a second pin 12 and the second pin 12 passes through the bracket 2 and is inserted into the second shaft hole 10
  • the second pin shaft 12 is a long axis, and both ends of the second pin 12 are sequentially inserted through the second link 14 and the bracket 2, and then inserted into the second shaft hole 10; because the rocker 3 drives the bracket through the connecting rod 2 movement, so that the track 6 corresponding to the first pin 11 for guiding the movement track of the bracket 2 and the second pin 12 are matched symmetrically on the substrate 6 on both sides of the bracket 2
  • the hollow groove 18 of the second pin shaft 12 is avoided when the bracket 2 is moved.
  • the track groove 17 and the hollow groove 18 are also opened to enable the first pin shaft 11 and the second pin shaft 12 to pass through the bracket 2, from the bottom to the bottom.
  • the track groove 17 and the hollow groove 18 are inclined in the direction of the rocker 3, and the first pin 11 and the second pin 12 are respectively disposed in the track groove 17 and the hollow groove 18, and the track groove 17 is matched with the first pin 11 Used to guide the trajectory of the carrier, the hollow groove 18 only for the second through the bracket pin 12 does not hinder movement of the carriage.
  • the bracket 2 is connected with an elastic returning device, and the elastic returning device is a spring 19, one end of which is connected to the bracket 2, and the other end of the spring 19 is connected to the base 1.
  • a cross bar 20 is disposed on the bracket 2, and both ends of the cross bar 20 are fixedly connected with the two substrates 6 of the bracket 2, the spring 19 is inclined, and the upper end of the spring 19 is hooked to the cross bar 20, the spring The lower end of 19 is hooked to the lower edge of the front end of the base 1.
  • 1 to 4 springs 19 can be set according to actual needs.
  • the distance between the bracket 2 or the seat back movement with the back of the chair is 15 to 40 mm, preferably 30 mm; the angle of the back of the seat back is 10 to 30 Degree, the best is 21 degrees.
  • Embodiment 2 This embodiment is different from Embodiment 1 in that, as shown in FIGS. 7 and 8, the second pin 12 is two independent small shafts 41, and is fixedly fixed on the base 1. Two pedestals 42, one end of each small shaft 41 passes through the second connecting rod 14 and the hollow groove 18 in turn, and is inserted into the second shaft hole 10, and the other end of each small shaft 41 is inserted into the corresponding bearing. 42 inside.
  • the spring 19 can be avoided relative to the form of a long axis to prevent the spring 19 from being obstructed.
  • Embodiment 3 This embodiment is different from Embodiment 1 in that, as shown in FIGS. 11 and 12, the portions of the substrate 6 on both sides of the bracket 2 interfere with the second shaft hole 10 and the second pin shaft 12 are cut off. Thereby, the bracket 2 avoids the second shaft hole 10 and the second pin shaft 12, and the second pin shaft 12 is directly inserted into the second shaft hole 10.
  • Embodiment 4 The bracket driving mechanism of this embodiment is different from Embodiment 1 in that the first pin shaft does not cooperate with the track groove, but the guide shaft is additionally provided on the base to cooperate with the track groove, specifically
  • the bracket driving mechanism includes a base for connecting the gas rod, a bracket for fixing the seat, and a rocker for connecting the back of the chair.
  • the bracket and the rocker are all disposed in the base, and the middle of the rocker passes through the first
  • the pin shaft is hinged to the base, and the front part of the rocker is provided with a first link and a second link, one end of the first link is hinged with the front end of the rocker, and the other end of the first link and one end of the second link pass
  • the third pin shaft is hinged and the third pin shaft is connected to the bracket, and the other end of the second link is hinged to the base through the second pin shaft, and the track groove for guiding the movement track of the bracket is symmetrically opened on both sides of the bracket
  • the guide shaft is arranged on the base, and the guide shaft is inserted into the track groove, and the rocker rotates through the first and second links to drive the carriage to move along the track of the track groove.
  • the first pin is connected to the base after passing through or avoiding the bracket.
  • the second pin is connected to the base after passing through or avoiding the bracket.
  • the passage of the first pin through the bracket means that a hollow groove corresponding to the first pin shaft for escaping the first pin shaft during the movement of the bracket is symmetrically opened on both sides of the bracket, and the first pin shaft is disposed In the hollow slot 1; the first pin avoiding the bracket means that the portion of the bracket that interferes with the first pin shaft is cut off so that the bracket avoids the first pin shaft.
  • the second pin passing through the bracket means that the hollow pin 2 corresponding to the second pin shaft for escaping the second pin shaft during the movement of the bracket is symmetrically opened on both sides of the bracket, and the second pin shaft is disposed In the hollowing groove 2; the second pin avoiding the bracket means that the portion of the bracket that interferes with the second pin shaft is cut off so that the bracket avoids the second pin.

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Chairs Characterized By Structure (AREA)

Abstract

L'invention concerne un mécanisme d'actionnement de console pour un châssis de chaise à bascule, comprenant : un châssis (1), une console (2) et une plaque de torsion (3) ; la console (2) et la plaque de torsion (3) sont toutes deux disposées dans le châssis (1) ; la partie médiane de la plaque de torsion (3) est connectée par charnière au châssis (1) par le biais d'une première broche (11) ; la partie avant de la plaque de torsion (3) comprend une première tige de connexion (13) et une seconde tige de connexion (14) ; une extrémité de la première tige de connexion (13) est connectée par charnière à l'extrémité avant de la plaque de torsion (3), et l'autre extrémité de la première tige de connexion (13) est connectée par charnière à une extrémité de la seconde tige de connexion (14) par le biais d'une troisième broche (15), la troisième broche (15) étant connectée à la console (2) ; et l'autre extrémité de la seconde tige de connexion (14) est connectée par charnière au châssis (1) par le biais d'une seconde broche (12) ; des gorges de guidage (17) comprenant la première broche (11) et conçues pour guider le trajet de déplacement de la console (2) sont disposées symétriquement des deux côtés de la console (2) ; la première broche (11) passe à travers la première tige de connexion (13) et la seconde tige de connexion (14), entraînant la console (2) en mouvement le long du trajet des gorges de guidage (17). Le mécanisme d'entraînement de console permet à la force d'inclinaison arrière et de redressement du dossier de chaise (37) de correspondre au poids d'un corps humain de sorte qu'une personne ayant un poids faible ou important puisse facilement s'incliner vers l'arrière et se redresser pour se lever.
PCT/CN2014/087322 2013-09-24 2014-09-24 Mécanisme d'actionnement de console pour châssis de chaise à bascule WO2015043474A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310438759.3 2013-09-24
CN201310438759.3A CN103504845B (zh) 2013-09-24 2013-09-24 一种用于转椅底盘的托架驱动机构

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Publication Number Publication Date
WO2015043474A1 true WO2015043474A1 (fr) 2015-04-02

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WO (1) WO2015043474A1 (fr)

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CN103504845B (zh) * 2013-09-24 2015-10-07 浙江永艺家具股份有限公司 一种用于转椅底盘的托架驱动机构
MY188697A (en) * 2014-09-02 2021-12-23 La Z Boy Inc Furniture member and power recline and lift mechanism
CN106889799B (zh) * 2015-12-19 2023-08-11 永艺家具股份有限公司 一种转椅托盘
CN107625323B (zh) * 2016-07-18 2024-04-26 永艺家具股份有限公司 一种用于办公椅底盘的托架驱动机构
CN111387745B (zh) * 2019-10-08 2023-06-16 杭州中泰实业集团有限公司 一种多功能转椅托盘及其使用方法
US11690455B2 (en) * 2020-09-18 2023-07-04 Dinkar Chellaram Synchronous-tilt reclining chair

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