WO2009021397A1 - Dispositif d'arrêt de verrouillage de cadre d'un siège de repos de type canapé - Google Patents

Dispositif d'arrêt de verrouillage de cadre d'un siège de repos de type canapé Download PDF

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Publication number
WO2009021397A1
WO2009021397A1 PCT/CN2008/001406 CN2008001406W WO2009021397A1 WO 2009021397 A1 WO2009021397 A1 WO 2009021397A1 CN 2008001406 W CN2008001406 W CN 2008001406W WO 2009021397 A1 WO2009021397 A1 WO 2009021397A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
locking
drive
transmission shaft
frame
Prior art date
Application number
PCT/CN2008/001406
Other languages
English (en)
Chinese (zh)
Inventor
Weiliang Gong
Original Assignee
Weiliang Gong
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 Weiliang Gong filed Critical Weiliang Gong
Publication of WO2009021397A1 publication Critical patent/WO2009021397A1/fr

Links

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
    • A47C1/034—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest

Definitions

  • the present invention relates to a sit-up frame that can change a leisure sofa that is shaped like a seat or a recliner, and more particularly to a locking device for a reclining chair frame.
  • the frame is composed of a multi-link mechanism and a spring to form a metal frame that can be deformed into a seat or a recliner. Mounting the seat cushion, backrest and other components on the seat frame becomes a seated chair or sofa.
  • the normal state of the sitting-up sofa is a seat-like shape.
  • the link mechanism drives the seat back to be reset, and the reclining chair is deformed into a seat.
  • the existing sitting chair frame is in the seat state, as shown in Fig. 1, the seat back chair frame has a self-locking device as shown in Fig. 3, and in the multi-link mechanism, there is a link mechanism on the two sides of the frame frame.
  • the transmission shaft 1, the hinge point A of the shaft is a self-locking point, and one end of the spring 2 that drives the linkage mechanism is fixed to the transmission plate 3.
  • the extension line of the axis of the spring 2 (the vector line of the direction of the spring force) is above the point A, and the spring force tensions the link mechanism to shrink the seat frame into a seat shape; when the pull wire is pulled The switch 4, the cable 5 pulls a hinged power buckle 6 to move the transmission plate 3 downward, and drives one end of the spring 2 to move downward so that the axis extension line of the spring is below the hinge point A, then the self-locking release, the spring force The backrest of the seat frame is tilted back, and the leg board is ejected forward as shown in FIG. 2. The self-locking of the existing sit-up frame is achieved by the extension of the spring axis above point A.
  • the spring axis can be swung below the point A, and the drive plate will move downward, and the frame will be unlocked.
  • large vibrations or impacts are inevitable, and the spring generates a radial amplitude with the vibration, and the axis swings over the self-locking point to release the self-locking.
  • the linkage of the frame is suddenly unfolded, that is, the backrest and the legboard are suddenly ejected on the front and rear sides, which may cause damage to the carrying or assembling personnel.
  • the present invention provides a locking device for a seated chair frame to ensure that the seat frame cannot be unlocked regardless of impact or vibration in the event of non-human operation.
  • the locking device of the leisure sofa chair frame of the invention comprises a multi-link mechanism on both sides of the frame frame connected by the transmission shaft, and the hinge point A of the transmission shaft and the large body plate is a self-locking point, and the driving spring end and the large body plate
  • the front end is connected, the other end is connected to the drive plate, one end of the torsion plate is hinged to the rear end of the drive plate, and the other end of the torsion plate is fixedly connected with the drive shaft, and the power buckle hinged on the large body plate is connected with the cable of the pull switch, and has a swingable A locking mechanism that limits the rotation of the drive shaft is coupled to the power buckle.
  • the locking device of the leisure sofa chair frame of the present invention is provided with a locking mechanism associated with the power buckle on the existing sitting chair frame, the locking mechanism can clamp the transmission shaft to limit its rotation or The rotation of the power button releases the restriction of the drive shaft by the locking mechanism. That is, when the sitting chair frame is in the seat state, the locking mechanism restricts the rotation of the transmission shaft, thereby restricting the downward movement of the transmission plate, even if the frame frame is subjected to strong impact and vibration, the spring of the drive spring is oscillated, and other possibilities are impossible.
  • the drive plate is moved down, thereby ensuring that the seat frame can maintain a self-locking state when subjected to impact and vibration.
  • the locking mechanism Only when the pulling switch is artificially pulled to drive the power buckle to swing, the locking mechanism is released to release the restriction on the transmission shaft, and the driving plate is moved downward to move the axis of the driving spring to the hinge point A to release the self-locking. .
  • the device must be self-locked by human operation, and can avoid accidents caused by sudden expansion of the chair frame due to vibration, impact, etc. during assembly or transportation.
  • the locking mechanism hooks the power buckle, it does not need to lock the seat frame by the elastic force of the driving spring.
  • the axis of the driving spring can be located below the hinge point A, and the pulling wire is pulled.
  • the switch unlocks the locking mechanism, the seat frame can be automatically opened, and the opening of the chair frame is more convenient and convenient, and can be conveniently used for elderly people with less effort.
  • FIG. 1 is a schematic perspective view of a conventional sitting chair frame in a seat state
  • 2 is a perspective view of the chair frame of FIG. 1 in a state of a reclining chair
  • FIG. 3 is a partial enlarged structural view of FIG. 1B
  • FIG. 4 is an assembly relationship diagram of the locking device and the multi-link mechanism of the present invention
  • Fig. 6 is a diagram showing the assembly relationship between the locking device and the multi-link mechanism of the present invention.
  • the two-symmetric multi-link mechanism connected to the transmission shaft 1 constitutes a seat frame, and the hinge point A of the transmission shaft 1 and the large body plate 7 is a self-locking point, and one end of the drive spring 2 is driven.
  • the other end is connected to the front end of the large body plate 7, and the other end is connected to the vertical plate 31 on the drive plate 3.
  • One end of the torsion plate 8 is hinged to the rear end of the drive plate 3, and the other end of the torsion plate 8 is fixedly connected to the drive shaft 1.
  • the cross section of the drive shaft end of the embodiment is rectangular, and the rectangular hole of the torsion plate 8 is matched with it.
  • the torsion plate 8 and the transmission shaft 1 can be fastened by other means such as a lock nut.
  • the power buckle 6 hinged on the large body plate 7 is connected to the cable 5 of the wire switch 4 to be swingable, and the locking mechanism is a concave table 9 integrally connected with the power buckle 6.
  • the concave table 9 swings with the power buckle 6 to catch the transmission shaft.
  • the end of the rectangular section of 1 limits the rotation of the drive shaft 1.
  • the linkage mechanism shown in Fig. 4 is that the seat frame is in the seat state. When the pull switch 4 is pulled, the cable 5 pulls the power buckle 6 to rotate, the concave table 9 of the lock mechanism swings out, and the power buckle 6 touches during the swinging process.
  • the horizontal pin 81 on the torsion plate 8 pushes the torsion plate 8 and drives the drive plate 3 to move downward.
  • the drive plate 3 drives the drive spring 2 to move downward, so that the spring axis moves below the self-locking point A, and the spring force will
  • the driving leg board 10 and the back board 11 are deployed forward and backward to deform the seat frame into a reclining chair. Since the recessed table 9 of the locking device is in the seat state, the drive shaft 1 is caught, and the seat frame cannot be unlocked as long as the pull switch 4 is not pulled.
  • Embodiment 2 as shown in FIG. 5, a locking plate 12 is hinged on the large body plate 7 between the rear portion of the driving plate 3 and the power buckle 6.
  • the locking plate 12-end has a hook 121 for hooking the driving plate 3.
  • the other side is close to the power buckle 6, and can be swung by the power buckle 6.
  • the hinge spring of the lock plate 12 is provided with a return spring as a torsion spring 13 and can of course also be reset by a compression spring 14.
  • the pull switch 4 is pulled, the cable 5 pulls the power buckle 6 to swing, and the power buckle 6 is toggled.
  • the abutting lock plate 12 is swung to withdraw the hook 121, and the restriction on the drive plate 3 is released.
  • the hook 121 of the lock plate can hook the rear end of the drive plate 3, as shown in Fig. 5; the hinge shaft 15 of the drive plate 3 and the torsion plate 8 can also be hooked, as shown in Fig. 6.
  • the connection of the drive spring 2 to the drive plate 3 may be that the magazine 2 is connected to the riser 31 of the drive plate, as shown in Fig. 5; or the spring 2 may be connected to the front of the drive plate 3, as shown in Fig. 6.
  • the locking plate 12 is hooked to the driving plate 3 by the hook 121 to restrict the rotation of the driving plate 3.
  • the driving spring 2 is connected with the driving plate 3, and the extension wire of the driving spring 2 can be directly located at the self-locking point A. Below.
  • the seat does not open automatically.
  • the seat can be automatically opened under the action of the spring 2, and the spring force of the spring does not need to be overcome, and the opening is easier and more convenient. Older people with less strength can also be used conveniently.

Landscapes

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

Abstract

L'invention concerne un dispositif d'arrêt de verrouillage qui comprend un mécanisme à connecteurs multiples qui se trouve des deux côtés du cadre de chaise et qui est relié à un arbre de transmission (1). Un point de liaison géminé A entre l'arbre de transmission (1) et une plaque à grand corps (7) est un point d'auto-verrouillage. Une extrémité d'un ressort d'actionnement (2) est reliée à l'extrémité avant de la plaque à grand corps (7), et l'autre extrémité est reliée à une plaque de transmission (3). Une extrémité d'une plaque de torsion (8) est reliée à l'extrémité arrière de la plaque de transmission (3), et l'autre extrémité est montée avec l'arbre de transmission (1). Un élément de fixation de force (6), relié de façon géminée à la plaque à grand corps (7), est relié à un câble (5) d'un commutateur de traction. Un mécanisme d'arrêt de verrouillage, qui peut osciller et limiter la course de l'arbre de transmission (1), est relié à l'élément de fixation de force (6).
PCT/CN2008/001406 2007-08-13 2008-08-01 Dispositif d'arrêt de verrouillage de cadre d'un siège de repos de type canapé WO2009021397A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN200720055454.4 2007-08-13
CN200720055456 2007-08-13
CN200720055454 2007-08-13
CN200720055456.3 2007-08-13

Publications (1)

Publication Number Publication Date
WO2009021397A1 true WO2009021397A1 (fr) 2009-02-19

Family

ID=40350357

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/001406 WO2009021397A1 (fr) 2007-08-13 2008-08-01 Dispositif d'arrêt de verrouillage de cadre d'un siège de repos de type canapé

Country Status (1)

Country Link
WO (1) WO2009021397A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2041065A (en) * 1979-02-21 1980-09-03 Fisher Corp Reclining and emergency latch mechanism for vehicle seats
CN2518404Y (zh) * 2001-12-14 2002-10-30 刘奇 锁止器
JP2004097257A (ja) * 2002-09-05 2004-04-02 Fuji Kiko Co Ltd シートリクライニング装置
CN2776158Y (zh) * 2005-01-21 2006-05-03 龚伟良 沙发休闲椅架装置
JP2006131019A (ja) * 2004-11-04 2006-05-25 Shiroki Corp シート
JP2007176404A (ja) * 2005-12-28 2007-07-12 T S Tec Kk チップアップ・ダイブダウン式自動車用リクライニングシート

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2041065A (en) * 1979-02-21 1980-09-03 Fisher Corp Reclining and emergency latch mechanism for vehicle seats
CN2518404Y (zh) * 2001-12-14 2002-10-30 刘奇 锁止器
JP2004097257A (ja) * 2002-09-05 2004-04-02 Fuji Kiko Co Ltd シートリクライニング装置
JP2006131019A (ja) * 2004-11-04 2006-05-25 Shiroki Corp シート
CN2776158Y (zh) * 2005-01-21 2006-05-03 龚伟良 沙发休闲椅架装置
JP2007176404A (ja) * 2005-12-28 2007-07-12 T S Tec Kk チップアップ・ダイブダウン式自動車用リクライニングシート

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