WO2019221631A1 - Mécanisme d'ajustement de l'angle d'inclinaison du dossier d'un siège - Google Patents

Mécanisme d'ajustement de l'angle d'inclinaison du dossier d'un siège Download PDF

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Publication number
WO2019221631A1
WO2019221631A1 PCT/RU2018/000797 RU2018000797W WO2019221631A1 WO 2019221631 A1 WO2019221631 A1 WO 2019221631A1 RU 2018000797 W RU2018000797 W RU 2018000797W WO 2019221631 A1 WO2019221631 A1 WO 2019221631A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
teeth
locking plate
pusher
locking
Prior art date
Application number
PCT/RU2018/000797
Other languages
English (en)
Russian (ru)
Inventor
Михаил Евгеньевич СИДОРОВ
Original Assignee
Sidorov Mikhail Evgenyevich
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 Sidorov Mikhail Evgenyevich filed Critical Sidorov Mikhail Evgenyevich
Priority to EA202000323A priority Critical patent/EA038620B1/ru
Priority to DE112018007611.3T priority patent/DE112018007611T5/de
Publication of WO2019221631A1 publication Critical patent/WO2019221631A1/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
    • A47C1/022—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B60N2/235—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms
    • B60N2/2352—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms with external pawls

Definitions

  • the invention relates to a seat device, mainly to a seat device of a vehicle with a convertible interior, and is used to adjust the angle of the seatback.
  • the present invention is mainly intended for the seats of such vehicles, where the interior of the cabin can be transformed by shifting the seat or group of seats (sofa) along the guides located in the floor of the passenger compartment of the vehicle.
  • the passenger seat belts are attached at all ends to the seat so that it is possible to move the seat around the cabin in a certain range.
  • higher demands are placed on the reliability of the connection between the base and the back of the seat, since at the time of critical situations most of the load falls on their connection.
  • the mechanism for adjusting the angle of inclination of the seatback used for such seats should provide the highest possible reliability of fixing the base and backrest for any angular position.
  • the known mechanism for adjusting the angle of the seatback of a vehicle seat patent US6827403, IPC B60N2 / 235, publ. November 4, 2004, which we take as a prototype.
  • the mechanism is located on one side of the seat and provides adjustment of the tilt of the seatback within a small angle of 15 degrees.
  • the known mechanism includes a seat back element with an arch of teeth, a locking bar pivotally mounted on the base of the seat with a reciprocal arch of teeth and a shaped hole, a pusher of the locking bar made in the form of a shaped cam that is pivotally mounted on the base of the seat and is located inside the shaped hole of the locking bar.
  • the contour of the shaped hole consists of several curved surfaces and provides two limit angular positions of the cam follower.
  • the shaped cam is rigidly connected to the lever, when exposed to which the person sitting on the seat actuates the specified mechanism.
  • the person sitting on the seat acts on a lever that rotates the cam clockwise around its axis.
  • the cam abuts against the working surface shaped holes and “pushes” the locking bar, while its teeth come out of contact with the reciprocal teeth of the seat back element.
  • the cam is turned counterclockwise around its axis, it abuts against the other working surface of the shaped hole and rotates the locking bar, while its teeth enter the grip with the teeth of the backrest element, which ensures angular fixation of the seatback.
  • the backrest element with the arc of teeth acts with great force on the locking bar. Since the pusher is in contact only with a small part of the surface of the shaped hole of the locking bar, as a result of such an impact, the shaped hole may deform or the cam may spontaneously rotate from the position that provides adhesion of the teeth of the back element and the pressure bar.
  • the main disadvantage of the known device is the lack of reliability of the angular fixation of the seatback relative to its base under heavy loads.
  • Another disadvantage of the known mechanism is the technological complexity of manufacturing the shaped cam and the holes of the locking bar, which have a complex geometric shape.
  • the technical result is aimed at improving the reliability of the angular fixation of the seatback relative to its base and simplifying the manufacturing process of the mechanism.
  • the proposed mechanism for adjusting the angle of inclination of the back of the seat comprising a bearing housing located on the side of the seat, rigidly connected to the base of the seat, on which are located the axis of the pivotally mounted elements of the mechanism, in particular of the backrest element with an arc of teeth, a locking bar with an arch of reciprocal teeth and a hole, a pusher of a locking bar located inside its hole, when exposed to which the teeth engage / disengage the locking plan ki and teeth of the backrest element, the pusher is made in the form of a circular eccentric, the opening of the locking bar has a circular shape of the same diameter, and the locking bar is pivotally mounted on the axis with a gap.
  • the proposed device is illustrated by the following graphic material.
  • FIG. 1-3 shows a mechanism for adjusting the angle of inclination of the seatback at certain points of its operation.
  • FIG. 1 shows the moment when the locking bar is in the first limit position, and in which the teeth of the locking bar and the teeth of the seatback element are fully engaged.
  • FIG. 2 shows the moment when the locking bar is in an intermediate position in which said teeth are partially out of engagement.
  • FIG. Figure 3 shows the moment when the locking bar is in the second limit position at which said teeth are completely out of engagement.
  • the specified mechanism comprises a supporting body 1, rigidly connected to the base of the seat 2 and located on one side of the seat.
  • the first axis 3 is the axis of the backrest element 4
  • the second axis 5 is the axis of the locking bar 6
  • the third axis 7 is the axis of the pusher 8 of the locking bar 6.
  • the bearing housing 1 is made in the form of two walls between which the axles and the elements of the mechanism are located.
  • the backrest element 4 contains an arc of teeth 9.
  • the locking bar 6 contains an arc of counter teeth 10, the radius of which corresponds to the radius of the arc of teeth 9, and through holes 11 and 12.
  • the teeth 9 and 10 are engaged, which provides angular fixation seat backs relative to its base.
  • the angle and radius of the arc of the teeth 9 are selected in such a way as to provide a rotation of the seatback in the range of 180 degrees, which ensures a lying position of the passenger and the folding of the backrest forward in its extreme positions.
  • the teeth 9 and 10 may be shaped as shown in FIG. 1-3, or another form. In FIG. one-
  • the backrest element is made in one piece (as shown in Figs. 1-3), however, an embodiment is possible when the backrest element
  • the locking bar 6 on one side is pivotally fixed with a gap on the axis 5, which passes through the hole 12, and on the other hand rests on the pusher 8, which is located in the through hole 11.
  • the pusher 8 is made in the form of a circular eccentric, and the hole 11 has a round shape of the same diameter.
  • the pusher 8 is rigidly connected to the lever (not shown in Fig.).
  • the seat is equipped with a spring mechanism (for example, gas springs), which ensures self-raising of the seat back in the disengaged position of the teeth 9 and 10 of the proposed mechanism.
  • a person sitting on a seat acts on a lever that rotates the pusher 8 around its axis 7 in a clockwise direction.
  • the pusher 8 made in the form of a circular eccentric, moves the locking plate 6 in such a way that the teeth 10 of the locking plate 6 disengage from the teeth 9 of the seat back element 4.
  • a person acts on a lever that rotates the pusher 8 around axis 7 counterclockwise.
  • the pusher 8, in turn, moves the locking bar 6, while its teeth
  • the execution of the pusher 8 in the form of a circular eccentric located in the round hole 11 of the locking plate 6 of the same diameter provides the maximum contact area of the pusher 8 and the inner surface of the hole 11. In the case of high loads on the locking plate 6, the load is distributed over the entire contact area of the pusher 8 with the hole 11 locking strips 6, which eliminates the deformation of the hole
  • the circular shape of the eccentric and the hole of the locking bar of the proposed mechanism are simple to manufacture.
  • This mechanism can be used in devices for other purposes, including in chairs and sofas for home use, in the passenger seats of an airplane, train, etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Seats For Vehicles (AREA)

Abstract

L'invention concerne un dispositif de siège, notamment un dispositif de siège de moyen de transport avec une cabine transformable, et peut être utilisée pour ajuster l'angle d'inclinaison du dossier d'un siège. Le résultat technique a pour but d'augmenter la fiabilité de la fixation angulaire du dossier par rapport à sa base et de simplifier le processus industriel de fabrication du mécanisme. L'invention concerne un mécanisme d'ajustement de l'angle d'inclinaison du dossier d'un siège, comprenant un corps de support disposé sur le côté latéral du siège et connecté igidement à la base du siège, sur lequel sont disposés des axes d'éléments du mécanisme fixés de manière articulée, notamment un élément du dossier de siège avec un arc de dents, une plaque d'appui avec un arc de dents correspondantes et une ouverture, un poussoir de la plaque d'appui disposé dans son ouverture; une action sur celui-ci entraîne un couplage / découplage des dents de la plaque d'appui et des dents de l'élément du dossier de siège; le poussoir se présente sous forme d'un excentrique rond, l'ouverture de la plaque d'appui possède une forme ronde du même diamètre, et la plaque d'appui est connectée par charnière sur l'axe avec un jour.
PCT/RU2018/000797 2018-05-16 2018-12-10 Mécanisme d'ajustement de l'angle d'inclinaison du dossier d'un siège WO2019221631A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EA202000323A EA038620B1 (ru) 2018-05-16 2018-12-10 Механизм регулировки угла наклона спинки сиденья
DE112018007611.3T DE112018007611T5 (de) 2018-05-16 2018-12-10 Einstellvorrichtung des sitzwinkels

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2018118081 2018-05-16
RU2018118081A RU2674602C1 (ru) 2018-05-16 2018-05-16 Механизм регулировки угла наклона спинки сиденья

Publications (1)

Publication Number Publication Date
WO2019221631A1 true WO2019221631A1 (fr) 2019-11-21

Family

ID=64753048

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2018/000797 WO2019221631A1 (fr) 2018-05-16 2018-12-10 Mécanisme d'ajustement de l'angle d'inclinaison du dossier d'un siège

Country Status (4)

Country Link
DE (1) DE112018007611T5 (fr)
EA (1) EA038620B1 (fr)
RU (1) RU2674602C1 (fr)
WO (1) WO2019221631A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU537619A3 (ru) * 1972-06-07 1976-11-30 Фриц Кейпер (Фирма) Шарнир дл регулируемого сидень транспортного средства
US5547254A (en) * 1992-09-30 1996-08-20 Aisin Seiki Kabushiki Kaisha Pawl and ratchet type seat tilt control apparatus
US20040217637A1 (en) * 2003-04-29 2004-11-04 Gerhard Paasche Gear-lock adjustable seat-back inclination structure
RU129886U1 (ru) * 2012-10-25 2013-07-10 Николай Васильевич Цилибухин Средство для фиксации положения спинки сиденья транспортного средства

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6869144B2 (en) * 2000-10-12 2005-03-22 Atl Engineering (Uk) Limited Pivot mechanism
US20050052064A1 (en) * 2003-09-10 2005-03-10 Stephen Bruck Seat recliner mechanism incorporating a rotatable cam co-acting within an interiorly apertured pawl

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU537619A3 (ru) * 1972-06-07 1976-11-30 Фриц Кейпер (Фирма) Шарнир дл регулируемого сидень транспортного средства
US5547254A (en) * 1992-09-30 1996-08-20 Aisin Seiki Kabushiki Kaisha Pawl and ratchet type seat tilt control apparatus
US20040217637A1 (en) * 2003-04-29 2004-11-04 Gerhard Paasche Gear-lock adjustable seat-back inclination structure
RU129886U1 (ru) * 2012-10-25 2013-07-10 Николай Васильевич Цилибухин Средство для фиксации положения спинки сиденья транспортного средства

Also Published As

Publication number Publication date
DE112018007611T5 (de) 2021-02-18
RU2674602C1 (ru) 2018-12-12
EA202000323A1 (ru) 2021-01-14
EA038620B1 (ru) 2021-09-23

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