WO2009116847A1 - Mécanisme de pivotement pour siège de véhicule - Google Patents

Mécanisme de pivotement pour siège de véhicule Download PDF

Info

Publication number
WO2009116847A1
WO2009116847A1 PCT/MY2008/000018 MY2008000018W WO2009116847A1 WO 2009116847 A1 WO2009116847 A1 WO 2009116847A1 MY 2008000018 W MY2008000018 W MY 2008000018W WO 2009116847 A1 WO2009116847 A1 WO 2009116847A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle seat
swivel mechanism
seat
locking
vehicle
Prior art date
Application number
PCT/MY2008/000018
Other languages
English (en)
Inventor
Chin Hian Tan
Original Assignee
Automotive Design Services Sdn. Bhd.
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 Automotive Design Services Sdn. Bhd. filed Critical Automotive Design Services Sdn. Bhd.
Priority to PCT/MY2008/000018 priority Critical patent/WO2009116847A1/fr
Publication of WO2009116847A1 publication Critical patent/WO2009116847A1/fr

Links

Classifications

    • 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
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/242—Bus seats
    • 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
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/14—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable rotatable, e.g. to permit easy access

Definitions

  • the present invention generally relates to a swivel mechanism and more particularly to an eccentric swivel mechanism for vehicle seat.
  • Motor vehicles such as vans or minibuses are usually equipped with swivel seat which enables rotational movement within interior space of the vehicle for a purpose of convenient entrance to or egression from the vehicle.
  • the seat may be rotated to desirable position to allow access to rear vehicle seat in a vehicle having limited door opening.
  • Mechanisms of the swivel seat typically allow user to rotate about its central axis.
  • the conventional vehicle seat rotating about a fixed central axis requires excessive clearance between vehicle seat and the vehicle wall in order to permit free rotating movement, necessitating the mounting of the swivel mechanism further away from vehicle sidewall obstacle than if the seat did not rotate.
  • the movement of the seat mount away from the vehicle sidewall may result in improper alignment with those non rotatable seat rows layout in the vehicle.
  • it may also result in waste in space especially for those vehicles with limited dimension.
  • central axis type mechanisms require centrally located base support to allow adequate rotation clearance, thus resulting in significantly less operating space for vehicle occupants.
  • the present invention relates to a swivel mechanism for use in vehicle seat.
  • the swivel mechanism for a vehicle seat having a seat frame assembly, pedestal and locking member characterized in that the swivel mechanism includes a base structure, at least one pair of pedestals, a suitably predefined locking recess and locking members.
  • the base structure of the swivel mechanism includes cam slots defining curvilinear path of predetermined rotational movement for vehicle seat.
  • said base structure is secured to vehicle floor or optionally mounted to a seat adjustment mechanism for movement along horizontal axes.
  • the at least one pair of pedestals is having cam rollers in communication with the cam slots, said pedestal is secured to the vehicle seat to enable vehicle seat to rotate along the curvilinear path of the cam slots.
  • the at least one pair of pedestals is rigidly connected by connecting members to form a firm structure for supporting the vehicle seat.
  • the cam rollers disposed at bottom ends of the pedestals are optionally formed by a mechanical means to provide slidable movement in communication with the clam slots.
  • Said pedestals further include at least one locking member having locking pawl in communication with the locking recess.
  • the predefined locking recess is configured on the base structure to lock the vehicle seat in position adjacent to the curvilinear path of the cam slots.
  • the at least one locking member of the swivel mechanism further include a lever pivotably mounted with the locking pawl.
  • said locking pawl is springably biased toward the locking recess and releasably rested into locking engagement with the locking recess.
  • cam slots of the preferred embodiment provide desirable turning motion of, but not limited to the motion from front facing position to side facing position. Any other desirable rotational motions such as two sides turning, rear side turning may also be formed depending on demand or application used.
  • the swivel mechanism of the present invention can be used in a single or bench-type vehicle seat for vans or minibuses. It may also be used in various types of seat for moving vehicles such as trains, cars, buses, trucks, trailers, tractors, etc
  • FIG. 1 is a perspective view of a vehicle seat structure having seat frame assembly, pedestal and swivel mechanism constructed in accordance with one mode of the present invention, the vehicle seat structure being shown in a front facing position;
  • FIG. 2 is a perspective view of the vehicle seat structure of FIG. 1, illustrating the seat frame assembly and pedestal being rotated to a side facing position;
  • FIG. 3a is a perspective view of the swivel mechanism without seat frame assembly, illustrating the pedestal in a front facing position
  • FIG. 3b is a perspective view of the swivel mechanism of FIG. 3a, illustrating first rotational step of the pedestal at 45° from front facing position
  • FIG. 3c is a perspective view of the swivel mechanism of FIG. 3a, illustrating second rotational step of the pedestal into side facing position
  • FIG. 4a is an enlarged front view of the swivel mechanism of FIG. 3a
  • FIG. 4b illustrating a top view of the swivel mechanism of FIG. 4a
  • FIG. 5a is an enlarged front view of the swivel mechanism of FIG. 3b
  • FIG. 5b illustrating a top view of the swivel mechanism of FIG. 5a
  • FIG. 6a is an enlarged front view of the swivel mechanism of FIG. 3c
  • FIG. 6b illustrating a top view of the swivel mechanism of FIG. 6a
  • FIG. 7 is a cross-sectional view of the swivel mechanism taken along line A - A of FIG. 6b.
  • the present invention relates to a swivel mechanism for use in vehicle seat.
  • the vehicle seat with swivel mechanism described below can be of a single or bench- type vehicle seat for use in, but not limited to vans or minibuses.
  • the vehicle seat with swivel mechanism may also be used in various types of moving vehicles such as trains, cars, buses, trucks, trailers, tractors, etc.
  • the preferred embodiment of the present invention illustrated herein is a bench-type vehicle seat with the swivel mechanism for use in vans.
  • a bench-type vehicle seat structure generally includes a seat frame assembly (12), pedestal (14) and swivel mechanism (16) constructed in accordance with one mode of the present invention.
  • the bench-type vehicle seat structure (10) being shown is in a front facing position.
  • the seat frame assembly (12), pedestal (14) and the swivel mechanism (16) are generally supported on a base structure (18).
  • the base structure (18) is suitably secured to vehicle floor or may be securely mounted on conventional seat adjuster mechanism (not shown) which provides horizontal axes movement to the seat.
  • the pedestal (14) is slidably mounted to the base structure (18) of the swivel mechanism (16) and adapted to support the seat firmly.
  • the swivel mechanism (16) allows the seat to be rotated from front facing position to a side facing position.
  • FIG. 2 shows the seat frame assembly (12) and pedestal (14) are being rotated to a side facing position.
  • the seat can be configured with various forms and sizes of possible turning positions.
  • the base structure (18) of the swivel mechanism (16) is mounted to vehicle floor such that the seat is supported to proximate a vehicle sidewall and within its turning dimension.
  • the swivel mechanism (16) of the present invention provides rotational movement of the seat without requiring excessive clearance, thus triming down unnecessary waste in interior space of the vehicle.
  • the swivel mechanism (16) includes a base structure (18) to which pedestal (14) is slidably mounted thereon.
  • the seat frame assembly (12) has been omitted for the purposes of clarity.
  • the base structure (18) is generally formed of rigid metal plate having predetermined cam slots (20).
  • the cam slots (20) are generally curvilinear in shape.
  • the cam slots (20) define a specific predetermined rotational movement of the seat.
  • the cam slots (20) are configured symmetrically, at predetermined angle of 45°, about a center axis of the base structure (18). It will be appreciated that the cam slots (20) of the preferred embodiment provide desirable turning motion of, but not limited to the motion from front facing position to side facing position. Any other desirable rotational motions such as two sides turning, rear side turning may also be formed depending on demand or application used.
  • cam slots (20) provide a track way or curvilinear path to cam rollers disposed at each suitably bottom ends of the pedestal (14). Particularly, front cam roller (22a) is in communication with first cam slot (20a), and rear cam roller (22b) is in communication with second cam slot (20b) as shown in FIGS. 4b, 5b, 6b and
  • front and rear cam rollers (22a, 22b) may be formed by any suitable mechanical means, including for instance, a slot pin, a bolt, a screw, a rivet, or any other suitable fastener that provides slidable movement in communication with the cam slots (20).
  • the pedestal (14) is provided with at least one locking member (24) disposed thereto.
  • a pair of pedestals (14) is rigidly connected by connecting members (26) to form a firm structure for supporting seat frame assembly (12).
  • the connecting member (26) may include plurality of connecting bars to form a rigid structure so that the pair of pedestals (14) is securely mounted.
  • Said pair of the pedestals (14) is adapted to be slidably mounted to the cam slots (20) through the front and rear cam rollers (22a, 22b).
  • the at least one locking member (24) is preferably disposed at the pair of pedestals (14) to lock and unlock the seat in various positions.
  • the base structure (18) is provided with locking recesses (28) corresponding to a locking pawl (30) of the at least one locking member (24).
  • the locking recesses (28) are adapted to receive the locking pawl (30) that pivotably mounted to a lever bracket (32) and releasably would rest into locking engagement with the locking recesses (28).
  • Said locking recesses (28) are pivotably mounted about a lever (34) and springably biased with a spring (36).
  • the locking recesses (28) and the locking pawl (30) of the preferred embodiment are arranged in such that way the seat can be locked at the front facing position and side facing position. It will be appreciated that, however, location of the locking recesses (28) may be configured in any suitable location to lock the seat in any variety of desired positions adjacent to the curvilinear path of the cam slots (20).
  • the locking pawls (30) are unlocked from engagement with the locking recesses (28).
  • the user may rotate the seat from front facing position to side facing position with two simple rotational steps.
  • one side of the front and rear cam rollers (22a, 22b) follows the curvilinear path of the first and second cam slots (20a, 20b) to a first turning point X and X' respectively as shown in FIG. 4b.
  • the user may further rotate the seat so that the front cam roller (22a) further moves along the curvilinear path of first cam slot (20a) to a second turning point Y (FIG. 5b).
  • the rear cam roller (22b) remains at point X' when the front cam roller (22a) further moves to second turning point Y (FIG. 6b).
  • Other symmetrical side of the front and rear cam rollers (22a, 22b) will not be described herein as its path movement is of reverse motion of the above described.
  • the swivel mechanism (16) of the present invention provides eccentric swivel moments for vehicle seat which is simple in construction and operation, reliable and safe, and it allows selective positioning of the seat for optimum and convenient use in the vehicle. Accordingly, the swivel mechanism does not require excessive clearance for rotational movement, and yet no interior space of vehicle is wasted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

L'invention concerne un mécanisme de pivotement (16) pour siège de véhicule qui comporte un ensemble armature de siège (12), un socle (14) et un élément de verrouillage (24). Le mécanisme de pivotement (16) est caractérisé en ce qu'il comprend une structure de base (18) comportant des fentes de came (20) définissant un tracé curviligne correspondant au déplacement en rotation prédéterminé du siège de véhicule; au moins deux socles (14) comportant des galets de came (22a, 22b) communiquant avec les fentes de came (20), chaque socle (14) étant fixé au siège de véhicule pour permettre audit siège de tourner suivant le tracé curviligne; et une encoche (28) de verrouillage prédéfinie, formée sur la structure de base (18) pour verrouiller le siège de véhicule en position, de manière adjacente au tracé curviligne des fentes de came (20); les socles (14) comprennent de plus au moins un élément de verrouillage (24) comportant un cliquet de verrouillage (30) qui communique avec l'encoche (28) de verrouillage.
PCT/MY2008/000018 2008-03-18 2008-03-18 Mécanisme de pivotement pour siège de véhicule WO2009116847A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/MY2008/000018 WO2009116847A1 (fr) 2008-03-18 2008-03-18 Mécanisme de pivotement pour siège de véhicule

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/MY2008/000018 WO2009116847A1 (fr) 2008-03-18 2008-03-18 Mécanisme de pivotement pour siège de véhicule

Publications (1)

Publication Number Publication Date
WO2009116847A1 true WO2009116847A1 (fr) 2009-09-24

Family

ID=41091115

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/MY2008/000018 WO2009116847A1 (fr) 2008-03-18 2008-03-18 Mécanisme de pivotement pour siège de véhicule

Country Status (1)

Country Link
WO (1) WO2009116847A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700112352A1 (it) * 2017-10-06 2019-04-06 Isringhausen Spa Dispositivo di rotazione per un sedile di un veicolo
US11772517B2 (en) 2020-11-09 2023-10-03 Ford Global Technologies, Llc Vehicular system capable of adjusting a passenger compartment from a child seat arrangement to a second arrangement
US11904732B2 (en) 2020-11-09 2024-02-20 Ford Global Technologies, Llc Vehicular system capable of adjusting a passenger compartment from a first arrangement to a child care arrangement

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5474353A (en) * 1993-12-01 1995-12-12 Hoover Universal, Inc. Pivoting seat cushion arrangement for vehicle seat assemblies
JPH1016773A (ja) * 1996-07-03 1998-01-20 Daihatsu Diesel Mfg Co Ltd 乗物用転換腰掛
KR19980014506U (ko) * 1998-03-19 1998-06-05 안종철 자동차용 시트의 안전이송장치
US6027170A (en) * 1999-02-19 2000-02-22 Paccar Inc Rotating vehicle seat

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5474353A (en) * 1993-12-01 1995-12-12 Hoover Universal, Inc. Pivoting seat cushion arrangement for vehicle seat assemblies
JPH1016773A (ja) * 1996-07-03 1998-01-20 Daihatsu Diesel Mfg Co Ltd 乗物用転換腰掛
KR19980014506U (ko) * 1998-03-19 1998-06-05 안종철 자동차용 시트의 안전이송장치
US6027170A (en) * 1999-02-19 2000-02-22 Paccar Inc Rotating vehicle seat

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700112352A1 (it) * 2017-10-06 2019-04-06 Isringhausen Spa Dispositivo di rotazione per un sedile di un veicolo
EP3466751A1 (fr) * 2017-10-06 2019-04-10 Isringhausen S.p.A. Dispositif de rotation de sièges de véhicule
US11772517B2 (en) 2020-11-09 2023-10-03 Ford Global Technologies, Llc Vehicular system capable of adjusting a passenger compartment from a child seat arrangement to a second arrangement
US11904732B2 (en) 2020-11-09 2024-02-20 Ford Global Technologies, Llc Vehicular system capable of adjusting a passenger compartment from a first arrangement to a child care arrangement

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