US20120132026A1 - Vehicle seat - Google Patents

Vehicle seat Download PDF

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Publication number
US20120132026A1
US20120132026A1 US13/302,204 US201113302204A US2012132026A1 US 20120132026 A1 US20120132026 A1 US 20120132026A1 US 201113302204 A US201113302204 A US 201113302204A US 2012132026 A1 US2012132026 A1 US 2012132026A1
Authority
US
United States
Prior art keywords
operating
link
lever
escape
lock
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US13/302,204
Other languages
English (en)
Inventor
Taiyou Ootsuka
Tomokazu IGARASHI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Boshoku Corp
Original Assignee
Toyota Boshoku Corp
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 Toyota Boshoku Corp filed Critical Toyota Boshoku Corp
Assigned to TOYOTA BOSHOKU KABUSHIKI KAISHA reassignment TOYOTA BOSHOKU KABUSHIKI KAISHA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: IGARASHI, TOMOKAZU, OOTSUKA, TAIYOU
Publication of US20120132026A1 publication Critical patent/US20120132026A1/en
Priority to US14/466,276 priority Critical patent/US9296318B2/en
Abandoned legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • G05G9/08—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlled members being actuated successively by progressive movement of the controlling member
    • 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
    • B60N2/0296—Central command actuator to selectively switch on or engage one of several special purpose circuits or mechanisms
    • 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
    • B60N2/06—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 slidable
    • B60N2/062—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 slidable transversally slidable
    • 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
    • B60N2/06—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 slidable
    • B60N2/065—Rear 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
    • B60N2/06—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 slidable
    • B60N2/07—Slide construction
    • B60N2/0702—Slide construction characterised by its cross-section
    • B60N2/0705—Slide construction characterised by its cross-section omega-shaped
    • 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
    • B60N2/06—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 slidable
    • B60N2/07—Slide construction
    • B60N2/0702—Slide construction characterised by its cross-section
    • B60N2/0715—C or U-shaped
    • 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
    • B60N2/06—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 slidable
    • B60N2/08—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 slidable characterised by the locking device
    • B60N2/0812—Location of the latch
    • B60N2/0818—Location of the latch inside the rail
    • 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
    • B60N2/06—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 slidable
    • B60N2/08—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 slidable characterised by the locking device
    • B60N2/0831—Movement of the latch
    • B60N2/0837—Movement of the latch pivoting
    • B60N2/0843—Movement of the latch pivoting about a longitudinal 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
    • B60N2/02—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
    • B60N2/12—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 slidable and tiltable
    • 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
    • B60N2/919—Positioning and locking mechanisms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20012—Multiple controlled elements

Definitions

  • the invention relates to vehicle seat. More particularly, the invention relates to a vehicle seat provided with an actuating mechanism that actuates two mechanisms in response to an operation of a single lever.
  • JP-A-2009-2924335 describes a vehicle seat provided with an actuating mechanism that releases locks of two mechanisms in response to an operation of a single lever.
  • the two mechanisms are configured such that the lock of one is released first by the lever being operated, and the lock of the other is then released by the lever being operated further.
  • a mechanism is provided that allows the power that is transmitted to escape midway so that an unreasonable load will not be applied to the mechanism on the side where the lock is released first due to the progression of the lever operation.
  • the mechanism on the side where the lock is released later is configured to continue to receive a load from the operation of the lever even after the lock has been released by the progression of the lever operation. Therefore, it is difficult to set sufficient allowance for the lever operating amount, which is problematic.
  • the invention provides a vehicle seat in which, in an actuating mechanism that actuates two mechanisms in response to an operation of a single lever, an excessive load following the lever operation will not be applied to the mechanisms even if sufficient operating amount allowance is provided for the lever.
  • a first aspect of the invention relates to a vehicle seat that includes a first mechanism; a second mechanism; and an actuating mechanism that actuates the first mechanism and the second mechanism in response to an operation of a single lever.
  • the actuating mechanism has an operating mechanism that is operated by the lever, a first link that is operated by the operating mechanism to actuate the first mechanism, and a second link that is operated to actuate the second mechanism.
  • a transmitting portion that receives operating force of the lever transmitted from the operating mechanism and transmits the operating force to the first and second mechanisms, and an escape portion that allows the operating force transmitted from the operating mechanism to escape are formed side by side on each of the links, and power transmitted from the lever to each of the links via the operating mechanism is allowed to escape during operation.
  • the links may be pivotally supported around a common shaft.
  • pivotally providing the links around a common shaft enables the transmitting portions and the escape portions to be arranged side by side in order in the radial direction so that they are consolidated in one location, such that both links can be rotated or movement is allowed to escape so that both links will not rotate by a single actuating mechanism.
  • the structure is able to be made more compact.
  • a connecting position of a first cable that is connected to the first link may be farther away from the shaft than a connecting position of a second cable that is connected to the second link.
  • the amount of movement of the first cable is able to be made greater than the amount of movement of the second cable, when the first link and the second link are rotated the same angle.
  • each of the links may have a shape that extends flat, and the escape portion may have a curved shape.
  • the links may be arranged side by side in an axial direction.
  • arranging the links side by side in the axial direction enables the links to be arranged so that their movable ranges overlap in the axial direction.
  • the actuating mechanism can be made compact in the radial direction.
  • FIG. 1 is a plan view schematically showing the structure of a vehicle seat according to one example embodiment of the invention
  • FIG. 2 is a side view of the vehicle seat according to the example embodiment
  • FIG. 3 is an enlarged view of an actuating mechanism of the vehicle seat according to the example embodiment
  • FIG. 4 is an enlarged view showing a state in which a lock of a longitudinal slide mechanism is released by operation of an operating lever of the vehicle seat according to the example embodiment;
  • FIG. 5 is an enlarged view showing a state in which the operating force transmitted from the operating lever to a first link is allowed to escape;
  • FIG. 6 is an enlarged view showing a state in which a lock of a lateral slide mechanism is released by operation of the operating lever;
  • FIG. 7 is an enlarged view showing a state in which the operating force transmitted from the operating lever to a second link is allowed to escape;
  • FIG. 8 is an enlarged view showing a state in which the operating lever has been operated to the maximum position
  • FIG. 9 is a sectional view taken along line IX-IX in FIG. 2 , that shows a lock structure of the longitudinal slide mechanism (and the lateral slide mechanism) of the vehicle seat according to the example embodiment;
  • FIG. 10 is an enlarged view of the structure of a transmitting mechanism of the vehicle seat according to the example embodiment.
  • FIG. 11 is an enlarged view showing a state in which the transmitting mechanism is actuated by a seat back being tilted forward, in the vehicle seat according to the example embodiment.
  • FIG. 12 is an enlarged view showing a state in which the operating lever is operated by the seat back being tilted forward, in the vehicle seat according to the example embodiment.
  • the vehicle seat in this example embodiment is configured such that a seat main body 1 is able to slide in the longitudinal direction of the vehicle (i.e., longitudinally) as well as in the width direction of the vehicle (i.e., laterally), by a longitudinal slide mechanism (longitudinal slide mechanism 4 ) and a lateral slide mechanism (lateral slide mechanism 5 ), respectively, with respect to a vehicle floor F, as shown in FIG. 1 .
  • the longitudinal slide mechanism 4 and the lateral slide mechanism 5 are always in slide-locked states.
  • the operation to release these locks is performed by operating an operating lever 7 provided on an outer side portion of the seat main body 1 , as shown in FIG. 2 .
  • the operating lever 7 is one example of the lever of the invention.
  • this operation to release the locks may also be performed by an operation that involves operating a release lever 6 C provided on the outer side portion of the seat main body 1 , and tilting a seat back 2 to a forward tilted position that will be described later.
  • a release operation is performed by operating this release lever 6 C, the seat main body 1 is placed in a state in which it is able to slide toward the inside and front of the vehicle with the seat back 2 in the forward tilted position and thus is bent over compactly toward the front of the vehicle, as shown in FIG. 1 , which enables a space L for getting into and out of a back row (third row seat 1 ′) of seats from a door Dr on that side to be wider than the initial space La before the seat is moved out of the way.
  • the seat main body 1 includes a seat back 2 that is a backrest, and a seat cushion 3 that is a sitting portion.
  • the lower end portion on both sides of the seat back 2 is connected, via a reclining mechanism 6 that functions as a rotating shaft device that can be stopped from rotating, to a rear end portion on both sides of the seat cushion 3 .
  • the seat back 2 is retained with the backrest angle constantly fixed with respect to the seat cushion 3 by the reclining mechanisms 6 .
  • the rotation-locked state of the reclining mechanisms 6 can be released all together by operating the release lever 6 C described above.
  • the reclining mechanisms 6 are interposed between an outer plate portion of both side frames of a back frame 2 F that is the frame of the seat back 2 , and an inner plate portion of both side frames of a cushion frame 3 F that is the frame of the seat cushion 3 , and are provided connecting these together.
  • the reclining mechanisms 6 are such that operating arms 6 B that are integrally connected to an operating shaft 6 A that protrudes through a center portion of the operating arms are rotatably operated via a cable, not shown, by the release lever 6 C described above (see FIG. 2 ) being operated, and the rotation-locked states of the reclining mechanisms 6 can be released together by the operating shafts 6 A being rotatably operated.
  • the fixed state of the backrest angle is released, such that the seat back 2 is able to tilt forward and backward about the center shaft axis (i.e., the axis of the operating shafts 6 A) of the reclining mechanisms 6 . Accordingly, when an occupant is not seated in the seat main body 1 , the seat back 2 can be tilted to the forward tilted position shown in FIG. 11 by the urging force of a spring, not shown, that is strung between it and the seat cushion 3 .
  • retaining plates 2 A formed in L-shapes and fixed to both side frames of the back frame 2 F are able to tilt forward or backward to positions in which they abut against a front protrusion (i.e., a forward tilt stopper 3 A) or a rear protrusion (i.e., a back tilt stopper 3 B) formed on both side frames of the cushion frame 3 F of the seat cushion 3 .
  • the retaining plates 2 A are retained by falling into positions where they hit the forward tilt stopper 3 A, by the fixed state of the backrest according to the reclining mechanisms 6 being released and the retaining plates 2 A being urged forward by the spring.
  • each longitudinal slide mechanism 4 has a slide rail 4 A that extends lengthwise in the longitudinal direction of the vehicle, a slider 4 B that is incorporated so as to be able to slide along the slide rail 4 A, and a lock pawl 4 C that is able to lock movement of the slider 4 B with respect to the slide rail 4 A.
  • the slide rails 4 A are provided fixed on the vehicle floor F.
  • each lateral slide mechanism 5 has a slide rail 5 A that extends lengthwise in the width direction of the vehicle, a slider 5 B that is incorporated so as to be able to slide along the slide rail 5 A, and a lock pawl 5 C that is able to lock movement of the slider 5 B with respect to the slide rail 5 A.
  • the slide rails 5 A are provided fixed, spanning between the upper portions of the sliders 4 B of the longitudinal slide mechanisms 4 described above.
  • both side frames of the cushion frame 3 F of the seat cushion 3 are provided fixed, spanning between the upper portions of the sliders 5 B, to the sliders 5 B that are mounted to these slide rails 5 A.
  • slide lock structures of the longitudinal slide mechanisms 4 and the lateral slide mechanisms 5 will be described with reference to FIG. 9 .
  • the basic structure of both of these slide lock structures is the same, so the following description will be centered around the slide lock structure of the longitudinal slide mechanism 4 , while collectively referring to the structure of the slide lock structure of the lateral slide mechanism 5 , that has basically the same structure, by placing its reference characters in parentheses.
  • the lock pawl 4 C ( 5 C) is provided rotatably shaft-connected to the slider 4 B ( 5 B) by a spindle 4 C 1 ( 5 C 1 ), and is constantly retained in a state that stops movement of the slider 4 B ( 5 B) by the tip end of the lock pawl 4 C ( 5 C) passing through a lock hole 4 B 1 ( 5 B 1 ) formed in the slider 4 B ( 5 B) and a lock hole 4 A 1 ( 5 A 1 ) formed in the slide rail 4 A ( 5 A), by rotation (rotation in the counterclockwise direction in the drawing) from the urging force of a spring 4 C 2 ( 5 C 2 ) hooked between it and the slider 4 B ( 5 B).
  • the lock pawl 4 C ( 5 C) releases the slide lock state of the slider 4 B ( 5 B) by rotating in a direction (clockwise in the drawing) such that it pulls out of the lock holes 4 A 1 ( 5 A 1 ) and 4 B 1 ( 5 B) against the urging force of the spring 4 C 2 ( 5 C 2 ), as shown by the virtual lines in FIG. 9 , in response to a cable 14 A ( 15 A) being pulled by the operating lever 7 being operated.
  • the lock holes 4 A 1 ( 5 A 1 ) that are formed in the slide rail 4 A ( 5 A) are formed in multiple locations in a line at equidistant intervals in the length direction of the slide rail 4 A ( 5 A), such that the sliding movement of the slider 4 B ( 5 B) can be locked over a wide area.
  • the operating lever 7 is provided shaft-connected, in a manner that enables it to be pulled up by the rotation of a connecting shaft 7 B, to a base plate 11 that is integrally fixed to the cushion frame 3 F of the seat cushion 3 , as shown in FIG. 3 .
  • the operating lever 7 is constantly rotationally urged in a direction (counterclockwise in the drawing) in which it is pulled down with respect to the base plate 11 by the urging force of a spring 7 C that is hooked between it and the base plate 11 , and thus kept in a state in which it is retained abutting against a stopper 11 A formed on an upper end portion of the base plate 11 from the rear.
  • the operating lever 7 is configured such that, when an operating portion 7 A that is formed, with a resin grip attached, on an arm portion that extends out toward the front of the vehicle, of the operating lever 7 is pulled upward, the operating lever 7 consequently transmits that operating force to the release mechanism 10 .
  • the operating lever 7 is pulled up until it reaches a position where it is stopped by abutting against a stopper 11 A formed on an upper end portion of the base plate 11 from the front, as shown in FIG. 8 .
  • the release mechanism 10 has an operating pin 12 , a transmitting mechanism 13 , a first link 14 , and a second link 15 , as shown in FIG. 3 .
  • the operating pin 12 is an example of the operating mechanism of the invention.
  • the operating pin 12 is provided integrally joined with the operating lever 7 and moves when the operating lever 7 is pulled upward, so as to push and rotate the first link 14 and the second link 15 that will be described later.
  • the transmitting mechanism 13 has an operating arm 13 A provided rotatably shaft-connected to the operating shaft 6 A of the reclining mechanism 6 of the outer side portion, and an operating cable 13 B that connects the lower end portion of this operating arm 13 A with the rear upper end portion of the operating lever 7 shown in FIG. 3 .
  • the former operating arm 13 A shown in FIG. 10 is retained, via the operating cable 13 B, with the upper end portion of the operating arm 13 A exposed along the path of forward rotational movement of the retaining plate 2 A that is fixed to the back frame 2 F of the seat back 2 described above, as shown in FIG. 10 , by the force with which the operating lever 7 shown in FIG. 3 is kept in the initial position by the urging force of the spring 7 C.
  • the latter operating cable 13 B With the latter operating cable 13 B, the end portion on the side that is connected to the operating lever 7 is hooked inside a long hole 7 D formed in the operating lever 7 , as shown in FIG. 3 , such that the operating cable 13 B is initially retained in the lower end portion of the long hole 7 D.
  • the long hole 7 D is formed curved in the shape of an arc centered around the connecting shaft 7 B.
  • the operating arm 13 A is pushed by the retaining plate 2 A and rotates counterclockwise in the drawing, thus pulling the operating lever 7 up, as shown in FIG. 12 , via the operating cable 13 B, in response to the seat back 2 being tilted to the forward tilted position by the release lever 6 C (see FIG. 2 ) described above being operated.
  • the first link 14 is provided side by side with the second link 15 in the axial direction, and is provided shaft-connected so as to be able to rotate with respect to the base plate 11 by a rotating shaft 16 , together with the second link 15 .
  • the rotating shaft 16 is integrally joined with the base plate 11 , and the first link 14 and the second link 15 are pivotally provided so as to be able to rotate with respect to the rotating shaft 16 .
  • the first link 14 is formed in an L-shape with an arm that extends out in two directions in the radial direction about the rotating shaft 16 .
  • the portion where the arm extends out toward the upper front of the seat with respect to the rotating shaft 16 is a portion that is rotationally operated upon receiving transmission of rotational operating force from the operating pin 12 that is joined with the operating lever 7 described above. Also, the portion where the arm extends out toward the lower front of the seat with respect to the rotating shaft 16 is a portion that is connected to a cable 14 A for releasing the lock pawl 4 C of the longitudinal slide mechanism 4 shown in FIG. 9 described above, and that releases the lock of the longitudinal slide mechanism 4 by pulling the cable 14 A in response to that rotational operation.
  • the end portion of the cable 14 A on the side that is connected to the first link 14 is provided hooked inside of a long hole 14 A 1 formed in the first link 14 , as shown in FIG. 3 .
  • the long hole 14 A 1 is formed in a shape curved in an arc around the rotating shaft 16 .
  • the second link 15 is formed in a shape of an arm that extends out in a T-shape toward the front of the seat, centered around the rotating shaft 16 .
  • a portion of the arm where the arm extends upward from the front side of the seat is a portion that is rotationally operated upon receiving rotational operating force transmitted by the operating pin 12 that is joined with the operating lever 7 described above.
  • a portion of the arm where the arm extends downward from the front side of the seat is a portion that is connected to a cable 15 A for releasing the lock pawl 5 C of the lateral slide mechanism 5 shown in FIG. 9 described above, and that releases the lock of the lateral slide mechanism 5 by pulling the cable 15 A in response to the movement of that rotational operation.
  • the end portion of the cable 15 A on the side that is connected to the second link 15 is provided hooked inside of a long hole 15 A 1 formed in the second link 15 , as shown in FIG. 3 .
  • the long hole 15 A 1 is formed in a shape curved in an arc around the rotating shaft 16 .
  • the cable 14 A that is connected to the first link 14 described above is connected to the first link 14 in a position farther from the rotating shaft 16 than the cable 15 A that is connected to the second link 15 .
  • the amount of movement in the pulling operation when the first link 14 and the second link 15 are rotated the same angle is greater with the cable 14 A that is connected to the first link 14 than it is with the cable 15 A that is connected to the second link 15 .
  • a spring 17 is hooked between a hooking portion 15 D of the second link 15 and the rotating shaft 16 , so the second link 15 is constantly rotatably urged in the in the clockwise direction in the drawing by the urging force of the spring 17 .
  • a pawl 15 E is formed, protruding out and bent back so as to be able to abut against an edge portion of the downward extending arm portion of the first link 14 , on the arm portion that extends out and downward with respect to the seat, of the second link 15 .
  • the second link 15 initially transmits the force by which it is rotatably urged in the clockwise direction in the drawing by the spring 17 to the first link 14 via the pawl 15 E, such the first link 14 is also rotatably urged in the same direction, and the second link 15 stops rotating, and is thus retained, in a position where the first link 14 abuts with and is retained by the operating pin 12 that is fixed to the operating lever 7 . In this retained state, the second link 15 does not abut against the operating pin 12 . Instead, there is a gap in the rotational direction between the second link 15 and the operating pin 12 .
  • the release mechanism 10 having this structure operates in the manner as described below in response to the operating lever 7 being pulled upward. That is, when the operating lever 7 is pulled upward from the initial position shown in FIG. 3 , the arm portion of the first link 14 is first pushed around in the counterclockwise direction in the drawing by the operating pin 12 , as shown in FIG. 4 . As a result, the second link 15 in which the pawl 15 E is abutted against the first link 14 is also pushed around by the first link 14 , and thus rotates in the counterclockwise direction in the drawing, together with the first link 14 . Also, from this rotation, the cable 14 A that is connected to the first link 14 is pulled more than the cable 15 A that is connected to the second link 15 . As a result, the locked stated of the longitudinal slide mechanisms 4 is released.
  • a transmitting portion 14 B with a surface that extends flat in the radial direction, and an escape portion 14 C with a surface that is curved in an arc shape, are formed next to each other in the radial direction, on an edge surface on the upper side in the drawing, of the arm portion that is pushed by the operating pin 12 of the first link 14 .
  • the latter escape portion 14 C forms an arced surface centered around the connecting shaft 7 B, when the first link 14 is rotated to the rotational position in FIG. 5 by the operating pin 12 .
  • the first link 14 structured as described above is rotated by the operating pin 12 moving along the area where the transmitting portion 14 B is formed, until a rotational position (the position in FIG. 5 ) midway from the initial rotational position where the first link 14 started to be pushed around by the operating pin 12 in response to the operating lever 7 being pulled up, as shown in FIGS. 3 to 5 .
  • a rotational position the position in FIG. 5
  • the operating pin 12 will move along the area where the escape portion 14 C is formed, so even if the operating lever 7 continues to be pulled up, the first link 14 will not receive the power transmitted from the operating pin 12 .
  • a transmitting portion 15 B with a surface that extends flat in the radial direction, and an escape portion 15 C with a surface that is curved in an arc shape, are formed next to each other in the radial direction, on an edge surface on the right side in the drawing, of the arm portion that is pushed by the operating pin 12 of the second link 15 .
  • the latter escape portion 15 C forms an arced surface that is curved in an arc centered around the connecting shaft 7 B, when the second link 15 is rotated to the rotational position in FIG. 7 by the operating pin 12 .
  • the second link 15 structured as described above is rotated by the operating pin 12 moving along the area where the transmitting portion 15 B is formed, until a rotational position (the position in FIG. 5 ) midway from the initial rotational position where the second link 15 started to be pushed around by the operating pin 12 in response to the operating lever 7 being pulled up, as shown in FIGS. 5 to 7 .
  • a rotational position the position in FIG. 5
  • the operating pin 12 will move along the area where the escape portion 15 C is formed, so even if the operating lever 7 continues to be pulled up, the second link 15 will not receive the power transmitted from the operating pin 12 .
  • the lock release operations of the longitudinal slide mechanism 4 and the lateral slide mechanism 5 via the release mechanism 10 may similarly be performed by pulling up on the release lever 6 C described above. That is, when the release lever 6 C is operated, the seat back 2 tilts forward to the forward tilted position such that the operating arm 13 A is pushed around, as illustrated in FIG. 11 . This rotation causes the operating cable 13 B to be pulled, such that the operating lever 7 is pulled up, as shown in FIG. 12 . As a result, the release mechanism 10 operates to release the locks of the longitudinal slide mechanism 4 and the lateral slide mechanism 5 , as illustrated in FIGS. 3 to 8 .
  • the transmitting portions 14 B and 15 B and the escape portions 14 C and 15 C are formed side by side, respectively, on the links 14 and 15 , and power transmitted from the operating lever 7 to the links 14 and 15 is allowed to escape midway through the operation.
  • the operating force of the operating lever 7 after the locks of the slide mechanisms 4 and 5 have been released is allowed to escape so that it is not transmitted to the links 14 and 15 . Therefore, even if sufficient operating amount allowance is provided for the operating lever 7 , an excessive load following operation of the operating lever 7 will not be applied to the mechanisms (i.e., the slide mechanisms 4 and 5 ).
  • the links 14 and 15 are arranged side by side in the axial direction, so the links 14 and 15 can be arranged so that their movable ranges overlap in the axial direction.
  • the release mechanism 10 i.e., the actuating mechanism
  • pivotally providing the links 14 and 15 around a common shaft enables the transmitting portions 14 B and 15 B and the escape portions 14 C and 15 C to be arranged side by side in order in the radial direction so that they are consolidated in one location, as shown in FIG. 3 , such that both links 14 and 15 can be rotated or movement is allowed to escape so that both links 14 and 15 will not rotate by a single release mechanism 10 (i.e., the actuating mechanism).
  • the structure is able to be more compact.
  • the invention has been described using one example embodiment, but the invention may also be carried out by various modes other than the example embodiment described above.
  • a structure in which the operating pin 12 for actuating the first link 14 and the second link 15 is integrally provided with the operating lever 7 is given as an example of the structure corresponding to the operating mechanism of the invention.
  • another actuating mechanism such as a gear mechanism or a link mechanism that actuates the first link 14 and the second link 15 by receiving operating force transmitted from the operating lever 7 (lever) may also be employed.
  • a structure in which the lock of the longitudinal slide mechanism 4 is released first and then the lock of the lateral slide mechanism 5 is released, as a result of the release mechanism 10 that corresponds to the actuating mechanism of the invention being actuated is given as an example.
  • the structure may also be one in which the lock of the lateral slide mechanism 5 is released first and then the lock of the longitudinal slide mechanism 4 is released.
  • the lock release operations of these slide mechanisms 4 and 5 may be performed together.
  • the actuating mechanism of the invention is not limited to being used to release the locks of the longitudinal slide mechanism 4 and the lateral slide mechanism 5 as described in the example embodiment. To the contrary, the actuating mechanism of the invention may be used as a mechanism for actuating a variety of mechanisms provided in a vehicle seat.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Seats For Vehicles (AREA)
US13/302,204 2010-11-29 2011-11-22 Vehicle seat Abandoned US20120132026A1 (en)

Priority Applications (1)

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US14/466,276 US9296318B2 (en) 2010-11-29 2014-08-22 Vehicle seat

Applications Claiming Priority (2)

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JP2010264765A JP5591664B2 (ja) 2010-11-29 2010-11-29 車両用シート
JP2010-264765 2010-11-29

Related Child Applications (1)

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US14/466,276 Continuation US9296318B2 (en) 2010-11-29 2014-08-22 Vehicle seat

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US20120132026A1 true US20120132026A1 (en) 2012-05-31

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US13/302,204 Abandoned US20120132026A1 (en) 2010-11-29 2011-11-22 Vehicle seat
US14/466,276 Active 2031-12-25 US9296318B2 (en) 2010-11-29 2014-08-22 Vehicle seat

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JP (1) JP5591664B2 (de)
CN (1) CN102476594B (de)
DE (1) DE102011087174B4 (de)

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US9085247B2 (en) 2012-06-09 2015-07-21 GM Global Technology Operations LLC Adjusting device for a vehicle seat, vehicle seat, row of seats,vehicle seat and method for this
US20160039316A1 (en) * 2013-03-27 2016-02-11 Johnson Controls Components GmbH & Co. KG. Easy-entry system for a vehicle seat, and vehicle seat

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US10017085B2 (en) * 2012-07-18 2018-07-10 Johnson Controls Gmbh Adjustment unit for a vehicle on seat and vehicle seat
CN109435793A (zh) * 2018-09-29 2019-03-08 延锋安道拓座椅有限公司 一种便于后排乘客进出的解锁机构
CN109501641A (zh) * 2018-10-16 2019-03-22 日照国峤汽车零部件有限公司 一种座椅
CN111016746A (zh) * 2019-12-17 2020-04-17 张家港市隆旌汽车零部件有限公司 一种四向调节座椅
CN113428053B (zh) * 2021-07-15 2022-04-01 盐城晶心精密机械有限公司 一种汽车座椅的电动滑轨结构

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US9085247B2 (en) 2012-06-09 2015-07-21 GM Global Technology Operations LLC Adjusting device for a vehicle seat, vehicle seat, row of seats,vehicle seat and method for this
US20160039316A1 (en) * 2013-03-27 2016-02-11 Johnson Controls Components GmbH & Co. KG. Easy-entry system for a vehicle seat, and vehicle seat

Also Published As

Publication number Publication date
DE102011087174A1 (de) 2012-05-31
CN102476594A (zh) 2012-05-30
US9296318B2 (en) 2016-03-29
DE102011087174B4 (de) 2014-04-10
JP5591664B2 (ja) 2014-09-17
JP2012116210A (ja) 2012-06-21
US20140360301A1 (en) 2014-12-11
CN102476594B (zh) 2015-02-25

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