WO2024209798A1 - 乗物用シート - Google Patents

乗物用シート Download PDF

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Publication number
WO2024209798A1
WO2024209798A1 PCT/JP2024/004851 JP2024004851W WO2024209798A1 WO 2024209798 A1 WO2024209798 A1 WO 2024209798A1 JP 2024004851 W JP2024004851 W JP 2024004851W WO 2024209798 A1 WO2024209798 A1 WO 2024209798A1
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WO
WIPO (PCT)
Prior art keywords
frame
vehicle seat
seat
drive unit
driven
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.)
Ceased
Application number
PCT/JP2024/004851
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
亘 平塚
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.)
TS Tech Co Ltd
Original Assignee
TS Tech Co Ltd
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 TS Tech Co Ltd filed Critical TS Tech Co Ltd
Priority to JP2025512431A priority Critical patent/JPWO2024209798A1/ja
Publication of WO2024209798A1 publication Critical patent/WO2024209798A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • B60N2/68—Seat frames
    • 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

Definitions

  • the present invention relates to a vehicle seat, and in particular to a vehicle seat equipped with a drive unit.
  • Patent document 1 discloses a structure that unlocks the reclining device by pulling a cable with a motor.
  • the present invention was made in consideration of the above problems, and its purpose is to provide a vehicle seat that can be installed while minimizing the increase in the number of parts and protecting the drive unit.
  • the vehicle seat of the present invention which comprises a frame having a hollow portion, a driving unit, and a driven unit driven by the driving unit, and at least a portion of the driving unit is disposed in the hollow portion of the frame.
  • a fixing portion is provided for fixing the driving portion to the hollow portion, a portion of the fixing portion abuts against an inner wall surface of the frame, and the driving portion is supported by a frictional force generated between the portion of the fixing portion and the inner wall surface of the hollow member.
  • the drive unit can be attached to the hollow portion of the frame with a simple structure.
  • the driven portion is configured to be driven by a linear member extending from the driving portion, and the linear member may be disposed in the hollow portion.
  • the linear member By disposing the linear member in the hollow portion, it is possible to protect the linear member and to save space.
  • the driven part is configured to be driven by a linear member extending from the driving part, and a through hole is formed in the fixed part, and the linear member is connected to the driven part through the through hole.
  • the drive unit may have a power supply receiving unit that receives electric power, and the power supply receiving unit may be provided at an end of the frame in a position exposed to the outside of the frame.
  • the power supply receiving section can be arranged with a simple configuration.
  • the linear member may be a wire or a cable.
  • the driving portion can drive the driven portion.
  • the drive unit may be provided with a fixing portion that fixes the drive unit to the hollow portion, the drive unit having a motor, the fixing portion having a biasing portion attached to the side of the motor and a contact portion provided at the tip of the biasing portion and abutting against the inner wall surface of the frame, and the drive unit may be supported by the abutment portion being biased against the inner wall surface of the frame. Even if there is a seam such as a joint on the inner wall surface of the frame, the drive unit can be fixed.
  • the fixing portion may have at least four of the urging portions and the abutment portion provided at a tip of each of the urging portions. Even if there is a seam on the inner wall surface of the frame and one of the contact parts cannot come into contact, the other three contact parts can come into contact, and the drive part can be stably fixed.
  • the vehicle seat includes a seat back that serves as a backrest portion, the seat back having a back frame that forms a skeleton, a first side airbag device attached to the back frame within one outer side portion in the seat width direction, and a second side airbag device attached to the back frame within the other outer side portion, and the drive unit is preferably located between the first side airbag device and the second side airbag device in a top view.
  • the drive unit is disposed in the hollow portion of the highly rigid frame, which makes it possible to prevent an increase in the number of parts and to attach the drive unit while protecting it. Furthermore, according to the vehicle seat of the present invention, the drive unit can be attached to the hollow portion of the frame with a simple structure. Furthermore, according to the vehicle seat of the present invention, by disposing the linear members in the hollow portion, it is possible to protect the linear members and to achieve space saving. Furthermore, according to the vehicle seat of the present invention, by forming a through hole in the fixing portion and passing the linear member therethrough, the linear member can be routed efficiently. Furthermore, according to the vehicle seat of the present invention, the power supply receiving portion can be disposed with a simple configuration.
  • the linear members are formed as wires or cables, so that the driving portion can drive the driven portion with a simple configuration. Furthermore, according to the vehicle seat of the present invention, even if there is a seam such as a joint on the inner wall surface of the frame, the drive unit can be fixed. Furthermore, according to the vehicle seat of the present invention, even if there is a seam on the inner wall surface of the frame and one of the contact parts cannot come into contact, the other three contact parts can be brought into contact, and the drive part can be stably fixed. Furthermore, according to the vehicle seat of the present invention, the drive portion is located between the first side airbag device and the second side airbag device in a top view, thereby making it possible to make the vehicle seat more compact.
  • FIG. 1 is a perspective view of a vehicle seat according to a first embodiment of the present invention
  • FIG. 2 is a perspective view showing a frame of the vehicle seat.
  • 3 is a cross-sectional view taken along line AA in FIG. 2.
  • 4 is a cross-sectional view taken along line BB in FIG. 3.
  • 13 is a cross-sectional view showing another example of a fixing portion that fixes a driving portion.
  • FIG. 13A and 13B are diagrams showing a drive unit and a fixed unit of a vehicle seat according to a second embodiment.
  • 7 is a cross-sectional view taken along line CC in FIG. 6.
  • FIG. 11 is a perspective view of a vehicle seat according to a third embodiment.
  • FIG. 11 is a perspective view showing a frame of a vehicle seat according to a third embodiment.
  • FIG. 11 is a top view of the back frame of the vehicle seat of the third embodiment.
  • FIG. 11 is a front view of a frame of a vehicle seat according to a third embodiment, as viewed from the front.
  • a vehicle seat installed in a vehicle will be given as an example of a vehicle seat, and an example of its configuration will be described.
  • the present invention is not limited to vehicle seats installed in vehicles that have wheels and travel on land, such as automobiles and trains, but may also be seats installed in aircraft, ships, and other vehicles that travel other than on land.
  • the "front-rear direction” refers to the front-rear direction of the vehicle seat, which coincides with the direction of travel when the vehicle is traveling.
  • the "seat width direction” refers to the width direction of the vehicle seat, which coincides with the left-right direction as seen by an occupant seated in the vehicle seat.
  • the "up-down direction” refers to the up-down direction of the vehicle seat, which coincides with the vertical direction when the vehicle is traveling on a horizontal plane.
  • Fig. 1 is a perspective view of the vehicle seat S.
  • Fig. 2 is a perspective view of a frame F provided inside the vehicle seat S.
  • the vehicle seat S is a seat that is placed on the vehicle floor and in which a vehicle occupant sits.
  • the vehicle seat S is used as a rear seat that corresponds to the rear seat of the vehicle.
  • the vehicle seat S may be a front seat of the vehicle, and may also be used as a second-row middle seat or a third-row rear seat in a vehicle that has three rows of seats in the front-to-rear direction.
  • the vehicle seat S is a bench seat capable of seating two passengers, and its main components are a seat cushion 1 which serves as a seating portion that supports the buttocks of the occupant, a seat back 2 which serves as a backrest that supports the back of the occupant, and a headrest 3 which is disposed on top of the seat back 2 and supports the head of the occupant.
  • the seat cushion 1 is large enough in the seat width direction to accommodate two occupants.
  • Two seat backs 2 are provided independently on the left and right sides, and can individually support the backs of the seated occupants.
  • the seat back 2 disposed on the right side may be referred to as the right seat back 2R
  • the seat back 2 disposed on the left side may be referred to as the left seat back 2L
  • a right headrest 3R is disposed on the upper part of the right seat back 2R
  • a left headrest 3L is disposed on the upper part of the left seat back 2L.
  • the seat cushion 1 and the right and left seat backs 2R and 2L are connected via a reclining device 6 (see FIG. 2 ), so that the right and left seat backs 2R and 2L can be individually tilted relative to the seat cushion 1.
  • a slide device 7 is provided under the seat cushion 1, and the slide device 7 allows the vehicle seat S to be placed on the vehicle floor in a state in which the vehicle seat S can slide in the front-rear direction of the vehicle.
  • a frame F is provided inside the vehicle seat S, and the frame F is mainly composed of a cushion frame 10 and a back frame 20.
  • the cushion frame 10 forms the skeleton of the seat cushion 1.
  • the back frame 20 forms the skeleton of the seat back 2. More specifically, the back frame 20 is composed of a right back frame 20R disposed on the right side and a left back frame 20L disposed on the left side, with the right back frame 20R forming the skeleton of the right seat back 2R and the left back frame 20L forming the skeleton of the left seat back 2L.
  • the right back frame 20R and the left back frame 20L may be simply referred to as the back frame 20.
  • the cushion frame 10 of the frame F is composed of a right cushion frame 10R that supports an occupant seated on the right side of the vehicle seat S, and a left cushion frame 10L that supports an occupant seated on the left side.
  • the left side of the right cushion frame 10R and the right side of the left cushion frame 10L are connected to form the cushion frame 10.
  • the right cushion frame 10R and the left cushion frame 10L have an external shape of a substantially rectangular frame.
  • the right cushion frame 10R and the left cushion frame 10L each have a pair of cushion side frames 11 that respectively constitute the left and right ends in the seat width direction.
  • the pair of cushion side frames 11 are arranged to extend in the front-rear direction of the vehicle, separated from each other in the left-right direction, in order to define the width of the right cushion frame 10R and the left cushion frame 10L.
  • a front pipe 13 that connects the pair of cushion side frames 11 is attached to the front end, and a rear pipe 14 is attached to the rear end.
  • the rear pipe 14 has a hollow portion 15.
  • a drive unit 30 (described later) and a first cable 45 and a second cable 50 extending from the drive unit 30 are arranged in the hollow portion 15 of the rear pipe 14 of the left cushion frame 10L.
  • the back frame 20 of the frame F is composed of the right back frame 20R and the left back frame 20L, and the right back frame 20R and the left back frame 20L are each formed into a rectangular frame-like body as shown in Fig. 2.
  • Each of the right back frame 20R and the left back frame 20L has a pair of back side frames 21 arranged on the left and right in the seat width direction.
  • Each of the right back frame 20R and the left back frame 20L has an upper frame 22 connecting upper ends of the pair of back side frames 21, and a lower frame 23 connecting lower ends of the pair of back side frames 21.
  • a pressure receiving portion 25 is provided between the pair of back side frames 21.
  • Each of the upper frames 22 of the right back frame 20R and the left back frame 20L is provided with a headrest guide holding portion 26 that supports a headrest pillar 27 extending from the headrest 3.
  • the seat cushion 1 is constructed by placing a pad P for the seat cushion 1 on a cushion frame 10, and then covering the pad P with a cushion skin T.
  • the right side seat back 2R is constructed by placing a pad P for the right side seat back 2R on a right side back frame 20R, and then covering it with a skin T for the right side seat back 2R.
  • the pad P for the left side seat back 2L is placed on a left side back frame 20L, and then covered with a skin T for the left side seat back 2L.
  • the pad P is a urethane base material formed by foam molding using, for example, a urethane foaming agent.
  • the skin T is made of cloth, film, leather, sheet, etc. The skin T is attached so as to cover the pad P while being stretched with a certain tension.
  • the seat cushion 1 and the seat back 2 are connected to sandwich the reclining device 6.
  • the reclining device 6 allows the seat back 2 to rotate relative to the seat cushion 1, and the inclination angle of the seat back 2 can be adjusted.
  • the inclination angle of the reclining device 6 is fixed, for example, by locking the rotation of the seat back rotation shaft with a reclining lock device 6a.
  • the lock of the reclining device 6 can be released by pulling the cables (first cable 45, second cable 50) extending from the reclining lock device 6a.
  • the reclining lock device 6a corresponds to the driven part of the present invention.
  • the slide device 7 is installed under the vehicle seat S.
  • the slide device 7 is composed of a lower rail 7a fixed onto the vehicle floor and an upper rail 7b that is slidable relative to the lower rail 7a.
  • the upper rail 7b is connected to the cushion side frame 11 of the cushion frame 10 and supports the seat body of the vehicle seat S.
  • the slide device 7 is provided with a slide rail locking device 7c that locks the sliding movement of the upper rail 7b. The lock can be released by pulling a cable extending from the slide rail locking device 7c.
  • the slide rail locking device 7c corresponds to the driven part of the present invention.
  • FIG. 3 is a cross-sectional view taken along line A-A in Figure 2, showing the inside of the rear pipe 14 in which the drive unit 30 is disposed
  • Figure 4 is a cross-sectional view taken along line B-B in Figure 3.
  • the drive unit 30 is a device that drives the reclining lock device 6a (driven part) described above, and at least a part of the drive unit 30 is disposed within the hollow portion 15 of the rear pipe 14 that constitutes the frame F.
  • the drive unit that drives the reclining lock device 6a was mounted on the front pipe of the cushion frame or on the pan frame, etc., taking into consideration the amount of deflection of the pad and interference with other parts. Furthermore, if there was no contact surface on which to place the drive unit, a separate part had to be provided, which could increase the number of parts. There was also concern that contact with the parts when sitting down could worsen the feeling.
  • a drive unit 30 having a motor 31, a gear box 40, etc. is disposed in the hollow portion 15 of the rear pipe 14 constituting the frame F. Therefore, it is not necessary to secure a space for disposing the drive unit 30 on the cushion frame 10, for example. Therefore, it is not necessary to consider the deflection of the pad or interference with other parts, and separate parts for attachment are not required, so deterioration of feeling is suppressed. Furthermore, by disposing the drive unit 30 inside the rear pipe 14, the motor 31 and the gear box 40 are protected by the outer surface of the rear pipe 14. Therefore, additional members that were conventionally required for mounting and protecting the drive unit 30 are no longer necessary, suppressing an increase in the number of parts and weight, which in turn contributes to suppressing increases in fuel efficiency and electricity consumption.
  • the drive unit 30 has a motor 31 and a gear box 40.
  • the hollow portion 15 is provided with a fixing portion 35 that fixes the drive unit 30 to the hollow portion 15.
  • the fixing portion 35 is provided with a coupler 36 for obtaining power.
  • the outer shape of the motor 31 is formed to fit the inner diameter of the rear pipe 14.
  • the fixed portion 35 is formed in a cylindrical shape having a diameter substantially the same as the inner diameter of the rear pipe 14.
  • a part of the fixed portion 35, specifically, an outer peripheral portion 35a of the fixed portion 35 abuts against the inner wall surface 14a of the rear pipe 14, and the drive unit 30 is supported by a frictional force generated between the outer peripheral portion 35a of the fixed portion 35 and the inner wall surface 14a of the rear pipe 14.
  • the fixed portion 35 is fixed in a state of being fitted into the inner wall surface 14a of the rear pipe 14, and supports the drive unit 30.
  • a through hole 35b is formed in a part of the fixing portion 35 along the extension direction of the rear pipe 14 (seat width direction), and a cable (second cable 50) for driving the reclining lock device 6a can be passed through it.
  • the gear box 40 is a device that pulls the cables (first cable 45, second cable 50) extending from the reclining lock device 6a. As shown in FIG 3, the gear box 40 has a motor drive shaft 32 extending from the motor 31 and a worm gear 33 provided on the motor drive shaft 32.
  • a first traction part 41 is provided below the motor drive shaft 32.
  • the first traction part 41 has a first driven gear 43 that meshes with the worm gear 33, a first rack gear 44 that meshes with the first driven gear 43, and a first support part 42 that supports the first rack gear 44.
  • a first cable 45 that connects to the reclining lock device 6a provided on the left side of the seat back 2 is connected to an end of the first rack gear 44.
  • the upper end of the first support part 42 holds the motor drive shaft 32.
  • a second traction portion 46 is provided above the motor drive shaft 32.
  • the second traction portion 46 has a second driven gear 48 that meshes with the worm gear 33, a second rack gear 49 that meshes with the second driven gear 48, and a second support portion 47 that supports the second rack gear 49.
  • a second cable 50 that connects to the reclining lock device 6a provided on the right side of the seat back 2 is connected to an end of the second rack gear 49.
  • a lower end of the second support portion 47 holds the motor drive shaft 32.
  • the second cable 50 passes through a through hole 35b of the fixing portion 35 and is connected to the reclining lock device 6a.
  • stoppers 34 are provided on both ends of the worm gear 33 to prevent the first support portion 42 and the second support portion 47 from hitting the worm gear 33 .
  • the fixed portion 35 is provided with a coupler 36 for obtaining power on the opposite side of the motor 31. More specifically, the fixed portion 35 is provided with a male connector 36a (power receiving portion) of the coupler 36, and is configured so that power is supplied to the motor 31 by connecting a female connector 36b provided at the end of the power cable 51.
  • the power cable 51 and the female connector 36b are inserted, for example, through a through hole 52 formed in the rear pipe 14.
  • the female connector 36b may be inserted from an opening at the end of the rear pipe 14 and engaged with the male connector 36a.
  • the rotation of the motor 31 moves the first rack gear 44 to the right (in the direction of arrow D), pulling the first cable 45 and unlocking the reclining lock device 6a of the left seat back 2L.
  • the rotation of the motor 31 moves the second rack gear 49 to the left (in the direction of arrow E), pulling the second cable 50 and unlocking the reclining lock device 6a of the right seat back 2R.
  • the first cable 45 and the second cable 50 correspond to the linear members of the present invention.
  • the first cable 45 and the second cable 50 may also be made of a wire or a rope.
  • a fixed portion 35A which is a modified example of the fixed portion 35.
  • the fixed portion 35 shown in Fig. 3 and Fig. 4 is provided at the rear end of the motor 31 (the end opposite to the end from which the motor drive shaft 32 extends), but the configuration of the fixed portion 35 is not limited thereto.
  • the fixed portion 35A which fixes the motor 31 is realized by a biasing portion 39 provided at the side of the motor 31 and a contact portion 38 provided at the tip of the biasing portion 39.
  • the fixed portion 35A is configured as a movable structure in which the contact portion 38 which abuts against the inner wall surface 14a of the rear pipe 14 is expanded in the radial direction of the rear pipe 14 by the biasing portion 39 such as a compression spring.
  • the contact portion 38 has a curved contact surface 38 a formed to match the shape of the inner wall surface of the rear pipe 14 .
  • the second cable 50 is configured to pass through a gap formed between the motor 31 and the inner wall surface 14 a of the rear pipe 14 and exit from the end of the rear pipe 14 .
  • the biasing portion 39 of the fixed portion 35A is configured by a compression spring
  • the biasing portion 39 may be any elastic member, and may be configured by rubber, for example.
  • a vehicle seat SA according to a second embodiment of the present invention will be described with reference to Figures 6 and 7.
  • the vehicle seat SA of the second embodiment is different from the vehicle seat S of the first embodiment in the shapes of the rear pipe 14 and the fixing portion 35.
  • the same or equivalent members are designated by the same reference numerals and detailed descriptions thereof will be omitted.
  • the rear pipe 14A may be supported by a plate-shaped frame 16, as shown in Figures 6 and 7. Since the end of the rear pipe 14A is not blocked by a cushion side frame or the like, the fixing part 35B that fixes the drive part 30 can be attached to the end of the rear pipe 14A.
  • the fixing part 35B is formed with a diameter slightly larger than the rear pipe 14A.
  • a ring-shaped groove (engagement part 35c) into which the end of the rear pipe 14A is inserted is formed on a first flat part 35d (the surface on which the motor 31 is provided, the surface facing the rear pipe 14A) of the fixing part 35B.
  • the motor 31, the gear box 40, etc. are inserted into the opening of the rear pipe 14A, and the end of the rear pipe 14A is fitted into the engagement part 35c of the fixing part 35, thereby fixing the motor 31, etc.
  • a through hole 35Bb is formed in the fixing portion 35B, allowing the second cable 50 to pass therethrough.
  • a coupler 36 for power supply is attached to the second flat surface 35e of the fixed portion 35 (the surface opposite to the surface on which the motor 31 is mounted).
  • the coupler 36 (more specifically, the male connector 36a) is exposed to the outside of the rear pipe 14A.
  • the male connector 36a of the coupler 36 can be positioned, and the female connector 36b of the power cable 51 can be connected.
  • FIG. 8 is a perspective view of the vehicle seat SB of the third embodiment
  • Fig. 9 is a perspective view showing a frame FB of the vehicle seat SB of the third embodiment
  • Fig. 10 is a view of the back frame 20 of the vehicle seat SB of the third embodiment as seen from above
  • Fig. 11 is a front view of the frame FB of the vehicle seat SB of the third embodiment as seen from the front.
  • the vehicle seat SB of the third embodiment differs from the vehicle seat S of the first embodiment in that a cushion airbag device 18 is provided in the seat cushion 1, and a side airbag device 28 is provided in the seat back 2.
  • a cushion airbag device 18 is provided in the seat cushion 1
  • a side airbag device 28 is provided in the seat back 2.
  • the same reference numerals are used for the same or equivalent members as those shown in Figures 1 to 3, and detailed descriptions thereof will be omitted.
  • the vehicle seat SB has two cushion airbag devices 18 arranged side by side on the left and right sides at the front side of the seat cushion 1.
  • a side airbag device 28 is provided inside the outer side of the seat back 2.
  • two cushion airbag devices 18 are disposed in front of the cushion frame 10 of the seat cushion 1.
  • the right cushion airbag device 18R is disposed rear of the front pipe 13 in front of the right cushion frame 10R
  • the left cushion airbag device 18L is disposed rear of the front pipe 13 in front of the left cushion frame 10L.
  • cushion airbag devices 18 when there is no need to particularly distinguish between the right cushion airbag device 18R and the left cushion airbag device 18L, they may be simply referred to as cushion airbag devices 18.
  • the cushion airbag device 18 has a known configuration and is composed of an airbag that inflates when activated, and an inflator that supplies gas to the airbag.
  • the airbag inflates during a collision, preventing the "submarine phenomenon" in which the occupant's hips slide forward and slip under the waist belt of the seat belt.
  • the seatbelt's restraining force is increased, preventing the occupant's lower body from moving forward, reducing damage to the legs.
  • a right side airbag device 28R is provided within the outer side portion 2Rb (right side portion) of the right seat back 2R
  • a left side airbag device 28L is provided within the outer side portion 2Lb (left side portion) of the left seat back 2L.
  • the right side airbag device 28R is attached to the back side frame 21 located outside (on the right side) of the right back frame 20R.
  • the left side airbag device 28L is attached to the back side frame 21 located outside (on the left side) of the left back frame 20L.
  • the right side airbag device 28R corresponds to the first side airbag device of the present invention
  • the left side airbag device 28L corresponds to the second side airbag device of the present invention.
  • the side airbag device 28 has a known configuration and is composed of an airbag that inflates when activated, an inflator that supplies gas to the airbag, and a case that houses the airbag and the inflator. By providing the side airbag device 28, it is possible to protect the occupant from a side collision, etc.
  • a drive unit 30 and a first cable 45 and a second cable 50 extending from the drive unit are arranged within the hollow portion 15 of the rear pipe 14 of the left cushion frame 10L.
  • the motor 31 of the drive unit 30 rotates, the first cable 45 is pulled, and the reclining lock device 6a of the left seat back 2L is unlocked.
  • the motor 31 rotates, the second cable 50 is pulled, and the reclining lock device 6a of the right seat back 2R is unlocked.
  • the drive unit 30 is disposed so as to be located between the right side airbag device 28R provided in the right back frame 20R and the left side airbag device 28L provided in the left back frame 20L.
  • the drive unit 30 is located between the two side airbag devices 28 provided on both sides in the seat width direction of the back frame 20.
  • the inner end 18La of the left cushion airbag device 18L is preferably positioned closer to the center (inner) of the vehicle seat SB in the seat width direction than the outer end 30b of the drive unit 30 when viewed from the front. Additionally, the inner end portion 18La of the left cushion airbag device 18L is preferably disposed at substantially the same position as the central portion 30c of the drive portion 30 when viewed from the front. Also, the inner end 18La of the left cushion airbag device 18L may be disposed on the outer side of the vehicle seat SB in the seat width direction than the inner end 30a of the drive unit 30 when viewed from the front. By arranging the left cushion airbag device 18L in this manner, for example, the vehicle seat can be made more compact.
  • the inner end portion 18Ra of the right side cushion airbag device 18R is preferably positioned closer to the center (inner side) of the vehicle seat SB in the seat width direction than the outer end portion 30b of the drive unit 30 when viewed from the front. Additionally, the inner end portion 18Ra of the right side cushion airbag device 18R is preferably disposed at substantially the same position as the central portion 30c of the drive portion 30 when viewed from the front. Also, the inner end 18Ra of the right cushion airbag device 18R is preferably disposed on the outer side of the vehicle seat SB in the seat width direction than the inner end 30a of the drive unit 30 when viewed from the front.
  • the vehicle seat SB in the third embodiment is configured as a bench seat capable of seating two occupants, and the drive unit 30 is located between two side airbag devices 28 provided within the outer side of the vehicle seat SB in a top view, but the position of the drive unit 30 is not limited to this. If the vehicle seat SB is configured as a one-person vehicle seat, the drive unit 30 may be located between the side airbag devices 28 provided on the left and right sides of the seat back of the one-person vehicle seat in a top view.
  • the vehicle seats S, SA, SB of the first to third embodiments can be manufactured by a manufacturing method that includes preparing a frame F having a hollow portion 15, a drive unit 30, and a driven portion (reclining lock device 6a, slide rail lock device 7c) driven by the drive unit 30, and arranging at least a portion of the drive unit 30 in the hollow portion 15 of the frame F.
  • the vehicle seats S, SA, SB may be manufactured by the above manufacturing method, which includes attaching fixing parts 35, 35A, 35B that fix the drive unit 30 to the hollow portion 15, with parts of the fixing parts 35, 35A, 35B abutting against the inner wall surface 14a of the frame F, and the drive unit 30 being supported by frictional forces generated between parts of the fixing parts 35, 35A, 35B and the inner wall surface 14a of the frame F.
  • the vehicle seats S, SA, and SB are configured so that the driven parts are driven by linear members (first cable 45, second cable 50) extending from the driving part 30, and the linear members are preferably manufactured by a manufacturing method in which they are disposed in the hollow part 15.
  • the vehicle seats S, SA, SB may be manufactured by the above manufacturing method in which the driven parts are configured to be driven by linear members extending from the driving part 30, through holes 35b, 35Bb are formed in the fixed parts 35, 35A, 35B, and the linear members are connected to the reclining lock device 6a through the through holes 35b, 35Bb.
  • the vehicle seats S, SA, and SB may be manufactured by the above-mentioned manufacturing method in which the drive unit 30 has a power supply receiving unit (male connector 36a) that receives electric power, and the power supply receiving unit (male connector 36a) is provided at an end of the frame F in a position exposed to the outside of the frame F.
  • the drive unit 30 has a power supply receiving unit (male connector 36a) that receives electric power
  • the power supply receiving unit (male connector 36a) is provided at an end of the frame F in a position exposed to the outside of the frame F.
  • vehicle seats S, SA, and SB may be manufactured by the above-mentioned manufacturing method, in which the linear members are wires or cables.
  • the vehicle seats S, SA, and SB may be manufactured by the above manufacturing method, in which the vehicle seats S, SA, and SB include a fixing portion 35A that fixes the drive portion 30 to the hollow portion 15, the drive portion 30 having a motor 31, the fixing portion 35A having a biasing portion 39 attached to the side of the motor 31, and a contact portion 38 provided at the tip of the biasing portion 39 and contacting the inner wall surface 14a of the frame F, and the drive portion 30 is supported by the contact portion 38 being biased against the inner wall surface 14a of the frame F.
  • the vehicle seats S, SA, and SB may be manufactured by the above-mentioned manufacturing method in which the fixed portion 35A has at least four biasing portions 39 and abutment portions 38 provided at the tips of the biasing portions 39.
  • the vehicle seat SB may be manufactured by the above manufacturing method, which includes preparing a seat back that serves as the backrest, and the seat back may have a back frame that forms the framework, a first side airbag device that is attached to the back frame within one outer side in the seat width direction, and a second side airbag device that is attached to the back frame within the other outer side, and the drive unit may be manufactured by the manufacturing method in which the drive unit is located between the first side airbag device and the second side airbag device when viewed from above.
  • the vehicle seats S, SA, and SB according to the embodiments of the present invention have been described above with reference to the drawings.
  • the drive unit 30 is provided in the hollow portion 15 of the rear pipe 14, 14A, but the location where the drive unit 30 is provided is not limited to the hollow portion 15 of the rear pipe 14, and the drive unit 30 may be provided in the hollow portion of the front pipe 13 of the cushion frame 10.
  • the drive unit 30 may also be provided in the hollow portion of the back frame 20.
  • the reclining lock device 6a has been mentioned as an example of a driven part that is driven by the drive unit 30, the driven part may also be the slide rail lock device 7c of the slide device 7, and the slide may be unlocked by the cable being pulled by the drive unit 30.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)
PCT/JP2024/004851 2023-04-07 2024-02-13 乗物用シート Ceased WO2024209798A1 (ja)

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US202363494827P 2023-04-07 2023-04-07
US63/494,827 2023-04-07
JP2024013370 2024-01-31
JP2024-013370 2024-01-31

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5934760A (en) * 1996-04-23 1999-08-10 Carl F. Schroth Gmbh Support means for a shoulder belt of a safety belt system
JP2009034380A (ja) * 2007-08-02 2009-02-19 Toyota Boshoku Corp ロック解除用アクチュエータ
JP2015098194A (ja) * 2013-11-18 2015-05-28 株式会社タチエス シート
JP2016175436A (ja) * 2015-03-18 2016-10-06 テイ・エス テック株式会社 乗物用シート
JP2017171195A (ja) * 2016-03-25 2017-09-28 トヨタ紡織株式会社 乗物用シート
JP2021533030A (ja) * 2018-08-08 2021-12-02 オートリブ ディベロップメント エービー 車両座席用の荷重支持構造部
JP2022189195A (ja) * 2021-06-10 2022-12-22 トヨタ紡織株式会社 構造体及び乗物用シート

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5934760A (en) * 1996-04-23 1999-08-10 Carl F. Schroth Gmbh Support means for a shoulder belt of a safety belt system
JP2009034380A (ja) * 2007-08-02 2009-02-19 Toyota Boshoku Corp ロック解除用アクチュエータ
JP2015098194A (ja) * 2013-11-18 2015-05-28 株式会社タチエス シート
JP2016175436A (ja) * 2015-03-18 2016-10-06 テイ・エス テック株式会社 乗物用シート
JP2017171195A (ja) * 2016-03-25 2017-09-28 トヨタ紡織株式会社 乗物用シート
JP2021533030A (ja) * 2018-08-08 2021-12-02 オートリブ ディベロップメント エービー 車両座席用の荷重支持構造部
JP2022189195A (ja) * 2021-06-10 2022-12-22 トヨタ紡織株式会社 構造体及び乗物用シート

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