WO2018091074A1 - Mechanism for seating products - Google Patents

Mechanism for seating products Download PDF

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Publication number
WO2018091074A1
WO2018091074A1 PCT/EP2016/077758 EP2016077758W WO2018091074A1 WO 2018091074 A1 WO2018091074 A1 WO 2018091074A1 EP 2016077758 W EP2016077758 W EP 2016077758W WO 2018091074 A1 WO2018091074 A1 WO 2018091074A1
Authority
WO
WIPO (PCT)
Prior art keywords
footrest
lever
rack
backrest
gears
Prior art date
Application number
PCT/EP2016/077758
Other languages
French (fr)
Inventor
Marco FLORIDO
Original Assignee
Florido Marco
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 Florido Marco filed Critical Florido Marco
Priority to PCT/EP2016/077758 priority Critical patent/WO2018091074A1/en
Publication of WO2018091074A1 publication Critical patent/WO2018091074A1/en

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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. 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
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246—Electric motors therefor
    • B60N2/02253—Electric motors therefor characterised by the transmission between the electric motor and the seat or seat parts
    • 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
    • B60N2/2213—Gear wheel driven mechanism
    • 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
    • B60N2/30—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats
    • B60N2/3002—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats back-rest movements
    • B60N2/3004—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats back-rest movements by rotation only
    • B60N2/3009—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats back-rest movements by rotation only about transversal axis
    • 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
    • B60N2/90—Details or parts not otherwise provided for
    • B60N2/995—Lower-leg-rests, e.g. calf-rests
    • 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
    • B60N2002/0204—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable characterised by the seat or seat part turning about or moving along a non-standard, particular axis, i.e. an axis different from the axis characterising the conventional movement
    • B60N2002/0216—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable characterised by the seat or seat part turning about or moving along a non-standard, particular axis, i.e. an axis different from the axis characterising the conventional movement the seat or seat part turning about or moving along a transversal axis

Definitions

  • the present invention relates to a mechanism used to easily modify the setup of some parts of seating products, mainly backrest and leg rest.
  • Mechanisms are known in the prior art, which are used to modify, as desired, the setup of the backrest with respect to the seat. Moreover, mechanisms are known that, being different from the former ones, as well as more popular, are mounted in seating products provided with footrest to be raised as desired from a substantially vertical position to the substantially horizontal operating position.
  • the purpose of the present invention is to disclose a mechanism that is simple, functional and compact, which can be used either in pairs or individually, and is fixed to the rigid frame of a seat of a seating product.
  • FIGS. 1 and 2 which are three-quarters top views of the mechanism in the limit closing position and in the limit opening position, respectively;
  • FIG. 3 is a diagrammatic top view of the inside of a side of a seat that shows an example of application of the mechanism according to the present invention disposed in the volume of the seat, here in closing position;
  • FIG. 4 is a cross-sectional view of an enlarged detail of 3;
  • FIG. 5 is a view of the mechanism of FIG. 3 in opening position
  • FIG. 6 is a cross-sectional view of an enlarged detail of 5.
  • the mechanism of the invention comprises a frame 1 to which a rack 2 is secured.
  • a self-locking piston 3 is arranged in central position with respect to said rack 2 in such manner to be joined to the frame 1 with the head of the rod 3A hinged in 4, as well as joined to the rack 2 by means of a bracket 5 to which the bottom of the cylinder 3B of the piston is applied, said bracket being fixed to the rack 2 with screw means of known type.
  • Said self-locking piston 3 is disposed between two sets of gears applied to the frame 1 .
  • the first set of gears which is disposed on the side of the head of the piston 3, comprises a gear 6A engaged into the rack 2 and a pinion 6B that, by receiving the motion from the gear 6A, determines the rotation of tubular elements 8A-8B that support the footrest through a coaxial shaft 7.
  • the tubular elements comprise telescopic tube comprising a first telescopic element 8A disposed telescopically into a second telescopic element 8B.
  • Said telescopic tube 8A-8B (and consequently the footrest) is folded under the seat when it is not used, and, when necessary, it comes out of the seat with a 180° rotation (in clockwise direction in the figure) and is disposed in substantially horizontal position.
  • a cam 7A holds an end of a steel cable 7B that, at the other end, is secured to the bottom of the second telescopic element 8B, that is the external one to which the footrest is secured and intended to slide on the first telescopic element 8A.
  • a spring 7C that is compressed when the footrest is folded under the seat, and extends while the footrest rotates and the cable 7B unwinds along the cam profile 7A. So the footrest slides out to open and, in the same way, folds back to close, passing under the seat.
  • cam profile 7A determines the moment in which the footrest starts sliding out and, in the same way, starts folding back to close.
  • the second set of gears which is disposed on the side of the bottom of the piston 3, comprises a gear 9A engaged in the rack 2 and a pinion 9B that, being coaxial to the gear 9A, from which it receives the motion, transmits the motion to a portion of gear 10 joined to a tubular element 1 1 that supports the backrest.
  • Said tubular element 1 1 (and consequently the backrest) can be inclined as necessary, to go from a basically vertical position to a tilted position.
  • the self-locking piston 3 remains firmly in the position taken from time to time by means of the small blocking lever 3C.
  • the small lever By operating said small lever to unblock the piston, being the rod 3A secured to the fixed frame 1 , the cylinder 3B of the piston will move and, being secured to the rack 2, will make it slide and, as a result, the gears 6A and 9A fixed to it will turn.
  • this determines the simultaneous rotations of the backrest and of the footrest until the lever 3C stops to be operated and, by blocking the piston in the specific opening angle, also stops the sliding of the rack 2.
  • a steel cable 15 connects under tension the lever to an actuator 12 secured to a manually- activated actuator lever 13 positioned between the bottom of the piston 3 and the set of gears used to move the backrest 9A-9B-10.
  • Said actuator lever 13 projects from below the seat in order to be grabbed by the user of the seat every time the user wants to modify the inclination of the backrest and, consequently, the setup of the footrest, passing from a sitting up position to a relax position, that is to say practically in horizontal position with elevated legs.
  • the lever 3C While the actuator lever 13 is actuated, the lever 3C maintains the piston 3 unblocked, to let the user choose the preferred position of the seat by simply pushing the backrest backwards to incline it and, consequently, elevating the legs or, vice versa, lifting the backrest and lowering the legs. So the user can choose the preferred position between the two limit positions of the backrest and of the footrest. When in said preferred position, the user will release the actuator lever 13 to block the piston.
  • the actuator lever 13 may protrude from above or may be replaced with a button. Moreover, the actuation of said lever may be obtained by connecting it to the armrest of the seat, which is suitably a sliding armrest.
  • the mechanism of the invention is simple to make and has a compact volume that makes it possible to house it in the seat of the seating product, FIGS. 3 and 4.
  • the use of two symmetric mechanisms may be preferred, being possibly connected by a rod applied to the actuator lever 13, it would also be possible to use only one mechanism housed in one side, or two mechanisms, but with the second mechanism that is actuated by a steel cable positioned in such manner to unblock and block the piston being moved by the same actuator lever 13 as the first mechanism.
  • the mechanism for seating products of the invention is actuated manually, according to another possible embodiment the mechanism may be electrically actuated by means of a button or a remote control.

Abstract

The present invention relates to a mechanism used to easily modify the setup of some parts of seating products, mainly backrest and leg rest. Said mechanism is mainly characterized in that it consists of two sets of gears (6A-6B) and (9A-9B-10), each engaging into a rack (2) in (6A) and (9A) respectively. Furthermore the first set of gears is engaged into the tubular elements (8A-8B) of the footrest in (6B), whereas the second set of gears is engaged into the backrest (10) in (11). The rack (2) is secured to a piston or gas spring (3) that operates it so that the leg rest (8) and the backrest (11) turn simultaneously in one direction and the opposite one too.

Description

Description
Mechanism for seating products
The present invention relates to a mechanism used to easily modify the setup of some parts of seating products, mainly backrest and leg rest.
Mechanisms are known in the prior art, which are used to modify, as desired, the setup of the backrest with respect to the seat. Moreover, mechanisms are known that, being different from the former ones, as well as more popular, are mounted in seating products provided with footrest to be raised as desired from a substantially vertical position to the substantially horizontal operating position.
All known mechanisms for backrests, for footrests and the like are especially cumbersome and expensive.
The purpose of the present invention is to disclose a mechanism that is simple, functional and compact, which can be used either in pairs or individually, and is fixed to the rigid frame of a seat of a seating product.
These and other characteristics of the invention will appear evident with reference to the four drawings, which only have an indicative, not limiting purpose, wherein:
FIGS. 1 and 2 which are three-quarters top views of the mechanism in the limit closing position and in the limit opening position, respectively;
FIG. 3 is a diagrammatic top view of the inside of a side of a seat that shows an example of application of the mechanism according to the present invention disposed in the volume of the seat, here in closing position;
FIG. 4 is a cross-sectional view of an enlarged detail of 3;
FIG. 5 is a view of the mechanism of FIG. 3 in opening position;
FIG. 6 is a cross-sectional view of an enlarged detail of 5.
With reference to the attached figures, the mechanism of the invention comprises a frame 1 to which a rack 2 is secured. A self-locking piston 3 is arranged in central position with respect to said rack 2 in such manner to be joined to the frame 1 with the head of the rod 3A hinged in 4, as well as joined to the rack 2 by means of a bracket 5 to which the bottom of the cylinder 3B of the piston is applied, said bracket being fixed to the rack 2 with screw means of known type.
Said self-locking piston 3 is disposed between two sets of gears applied to the frame 1 .
The first set of gears, which is disposed on the side of the head of the piston 3, comprises a gear 6A engaged into the rack 2 and a pinion 6B that, by receiving the motion from the gear 6A, determines the rotation of tubular elements 8A-8B that support the footrest through a coaxial shaft 7. The tubular elements comprise telescopic tube comprising a first telescopic element 8A disposed telescopically into a second telescopic element 8B. Said telescopic tube 8A-8B (and consequently the footrest) is folded under the seat when it is not used, and, when necessary, it comes out of the seat with a 180° rotation (in clockwise direction in the figure) and is disposed in substantially horizontal position.
As shown by FIGS. 3-4 and FIGS. 5-6, a cam 7A holds an end of a steel cable 7B that, at the other end, is secured to the bottom of the second telescopic element 8B, that is the external one to which the footrest is secured and intended to slide on the first telescopic element 8A. Inside the two tubular elements 8A-8B there is a spring 7C that is compressed when the footrest is folded under the seat, and extends while the footrest rotates and the cable 7B unwinds along the cam profile 7A. So the footrest slides out to open and, in the same way, folds back to close, passing under the seat.
Therefore it is the cam profile 7A that determines the moment in which the footrest starts sliding out and, in the same way, starts folding back to close.
The second set of gears, which is disposed on the side of the bottom of the piston 3, comprises a gear 9A engaged in the rack 2 and a pinion 9B that, being coaxial to the gear 9A, from which it receives the motion, transmits the motion to a portion of gear 10 joined to a tubular element 1 1 that supports the backrest.
Said tubular element 1 1 (and consequently the backrest) can be inclined as necessary, to go from a basically vertical position to a tilted position.
As it is known, the self-locking piston 3 remains firmly in the position taken from time to time by means of the small blocking lever 3C. By operating said small lever to unblock the piston, being the rod 3A secured to the fixed frame 1 , the cylinder 3B of the piston will move and, being secured to the rack 2, will make it slide and, as a result, the gears 6A and 9A fixed to it will turn. Obviously, this determines the simultaneous rotations of the backrest and of the footrest until the lever 3C stops to be operated and, by blocking the piston in the specific opening angle, also stops the sliding of the rack 2. In order to act on the lever 3C, a steel cable 15, for example of the type used for brakes, connects under tension the lever to an actuator 12 secured to a manually- activated actuator lever 13 positioned between the bottom of the piston 3 and the set of gears used to move the backrest 9A-9B-10.
Said actuator lever 13 projects from below the seat in order to be grabbed by the user of the seat every time the user wants to modify the inclination of the backrest and, consequently, the setup of the footrest, passing from a sitting up position to a relax position, that is to say practically in horizontal position with elevated legs.
While the actuator lever 13 is actuated, the lever 3C maintains the piston 3 unblocked, to let the user choose the preferred position of the seat by simply pushing the backrest backwards to incline it and, consequently, elevating the legs or, vice versa, lifting the backrest and lowering the legs. So the user can choose the preferred position between the two limit positions of the backrest and of the footrest. When in said preferred position, the user will release the actuator lever 13 to block the piston.
Obviously the actuator lever 13 may protrude from above or may be replaced with a button. Moreover, the actuation of said lever may be obtained by connecting it to the armrest of the seat, which is suitably a sliding armrest.
The aforementioned description shows that the mechanism of the invention is simple to make and has a compact volume that makes it possible to house it in the seat of the seating product, FIGS. 3 and 4. Moreover, although the use of two symmetric mechanisms may be preferred, being possibly connected by a rod applied to the actuator lever 13, it would also be possible to use only one mechanism housed in one side, or two mechanisms, but with the second mechanism that is actuated by a steel cable positioned in such manner to unblock and block the piston being moved by the same actuator lever 13 as the first mechanism.
Although in this description the mechanism for seating products of the invention is actuated manually, according to another possible embodiment the mechanism may be electrically actuated by means of a button or a remote control.
Finally, it must be noted that, it being understood that the general characteristics described herein are maintained, the mechanism for seating products of the invention may be subject to modifications or changes that in any case fall in the protection scope of this patent, regardless of the type of seating product to which said mechanism is applied, in addition to the one shown in the attached figures.

Claims

Claims
1 ) Mechanism for seating products that allows to easily modify the setup of some parts of said products, such as backrest and leg rest, the mechanism comprising
- a frame (1 ),
- a footrest having tubular elements (8A-8B),
- a backrest (1 1 ),
- a leg rest (8),
characterized in that said mechanism further comprises:
- a first sets of gears (6A-6B) and a second set of gear (9A-9B-10) engaged into a rack (2) by gears (6A and 9A) respectively, the first set of gears (6A-6B) being engaged into the tubular elements (8A-8B) of the foot rest by gear (6B); the second set of gears (9A-9B-10) being engaged into the backrest (1 1 ) by the gear (10);
the rack (2) being secured to a piston or gas spring (3) that operates the rack (2) so that the leg rest (8) and the backrest (1 1 ) turn simultaneously in one direction and the opposite one too.
2) Mechanism for seating products, as in claim 1 , wherein said piston or gas spring (3) comprise:
- a cylinder (3B) secured to the rack (2) by means of a bracket (5) and - a rod (3A) pivoted in a pivoting point (4) to the frame (1 ) of the mechanism.
3) Mechanism for seating products, as in claim 2, wherein said piston (3) is self-locking so that it remains in the position taken from time to time by means of a lever (3C).
4) Mechanism for seating products, as in claim 3, wherein said lever
(3C) is activated by a steel cable (15) that connects under tension the lever (3C) to an actuator (13) suitable to be activated in order to change the inclination of the backrest and footrest.
5) Mechanism for seating products, as in claim 4, wherein said actuator (13) is a manually-activated lever projecting above or below the seat, or connected to an armrest of the seat which slides back and forth in order to actuate the actuator.
6) Mechanism for seating products, as in claim 4, wherein the operation of the lever (3C) is ensured by an electric motor that can be activated by the means of a button or a remote control, which can be positioned on the armrest or on one side of the seat.
7) Mechanism for seating products, as in claim 1 , wherein the tubular elements (8A-8B) of the footrest comprises a first telescopic element (8A) telescopically engaged into a second telescopic element (8B); a cam (7A) secured to the frame (1 ) of the seat holds one end of a steel cable (7B) that has the other end fixed to a bottom of the second telescopic element (8B) of the footrest, which slides along the first telescopic element (8A) and is fixed to the footrest.
8) Mechanism for seating products, as in claim 7, wherein inside the two tubular elements (8A-8B) of the footrest there is a spring (7C) that is compressed when the footrest is folded under the seat, and extends while the footrest rotates and the cable (7B) unwinds along the cam (7A), so that the footrest slides out to open and, in the same way, folds back to close, passing under the seat.
9) Operation method of the mechanism according to anyone of the claims 3 to 8, wherein the lever (3C) and the actuator (13) are connected by the cable (15) that unblocks the piston (3) and acts on the lever (3C) of the piston (3), thanks to the actuator (13), so that the cylinder (3B) of the piston, secured to the rack (2), will move and make the rack to slide and, as a result, the gears (6A, 9A) fixed to rack will turn and make the backrest and footrest turn simultaneously between two end positions until the action on the lever (3C) stops and the lever (3C) blocks the gears (6A, 9A) in the desired position.
PCT/EP2016/077758 2016-11-15 2016-11-15 Mechanism for seating products WO2018091074A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2016/077758 WO2018091074A1 (en) 2016-11-15 2016-11-15 Mechanism for seating products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2016/077758 WO2018091074A1 (en) 2016-11-15 2016-11-15 Mechanism for seating products

Publications (1)

Publication Number Publication Date
WO2018091074A1 true WO2018091074A1 (en) 2018-05-24

Family

ID=57348651

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/077758 WO2018091074A1 (en) 2016-11-15 2016-11-15 Mechanism for seating products

Country Status (1)

Country Link
WO (1) WO2018091074A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220041087A1 (en) * 2019-06-25 2022-02-10 Yanfeng Adient Seating Co., Ltd. Inbuilt Seat Leg Support and Seat

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1228963A1 (en) * 2001-02-05 2002-08-07 Société Industrielle et Commerciale de Matériel Aéronautique Multipositional airplane seat
EP1254832A1 (en) * 2001-04-30 2002-11-06 Société Industrielle et Commerciale de Matériel Aéronautique Seat particularly for airplane providing an adjustable cushion and a backrest

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1228963A1 (en) * 2001-02-05 2002-08-07 Société Industrielle et Commerciale de Matériel Aéronautique Multipositional airplane seat
EP1254832A1 (en) * 2001-04-30 2002-11-06 Société Industrielle et Commerciale de Matériel Aéronautique Seat particularly for airplane providing an adjustable cushion and a backrest

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220041087A1 (en) * 2019-06-25 2022-02-10 Yanfeng Adient Seating Co., Ltd. Inbuilt Seat Leg Support and Seat
US11679707B2 (en) * 2019-06-25 2023-06-20 Yanfeng Adient Seating Co., Ltd. Inbuilt seat leg support and seat

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