WO2019107451A1 - 乗物用シート - Google Patents
乗物用シート Download PDFInfo
- Publication number
- WO2019107451A1 WO2019107451A1 PCT/JP2018/043869 JP2018043869W WO2019107451A1 WO 2019107451 A1 WO2019107451 A1 WO 2019107451A1 JP 2018043869 W JP2018043869 W JP 2018043869W WO 2019107451 A1 WO2019107451 A1 WO 2019107451A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- frame
- seat
- vehicle seat
- link
- cushion
- Prior art date
Links
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- 210000000689 upper leg Anatomy 0.000 description 2
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Images
Classifications
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- 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
- B60N2/02—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
- B60N2/16—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 height-adjustable
- B60N2/1605—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 height-adjustable characterised by the cinematic
- B60N2/161—Rods
- B60N2/1615—Parallelogram-like structure
-
- 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
- B60N2/0226—User interfaces specially adapted for seat adjustment
-
- 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
- B60N2/16—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 height-adjustable
- B60N2/1635—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 height-adjustable characterised by the drive mechanism
- B60N2/165—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
- B60N2/58—Seat coverings
- B60N2/5816—Seat coverings attachments thereof
- B60N2/5825—Seat coverings attachments thereof by hooks, staples, clips, snap fasteners or the like
-
- 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
- B60N2205/00—General mechanical or structural details
- B60N2205/30—Seat or seat parts characterised by comprising plural parts or pieces
Definitions
- the present invention relates to a vehicle seat, and more particularly to a vehicle seat capable of adjusting the height of a seat cushion.
- a vehicle seat provided with a height device capable of adjusting the height of the seat cushion is known.
- the height device is mounted between the seat cushion and the vehicle floor, and includes a pair of front links on the seat front side and a rear link on the seat rear side. ing. Then, the rear link serves as a drive link, and the height of the seat body can be adjusted.
- an operation lever for operating the drive of the height device is attached to the outside in the seat width direction of the drive link, and a height device is provided between the drive link and the operation lever.
- a brake unit is provided to regulate the drive of the vehicle.
- the position adjustment range of the seat cushion and the operation range of the operation lever are limited by providing a restriction member for restricting the rotation range to the drive link and the operation lever. doing.
- This invention is made in view of said subject, The objective regulates the movement of the operation part operated when moving a cushion frame in the height direction, and the link member for moving a cushion frame. It is an object of the present invention to provide a vehicle seat which can reduce the number of parts required to do so.
- the vehicle seat according to the present invention is mounted on the cushion frame so as to be rotatable relative to the cushion frame, and the cushion frame according to the rotation.
- a link member for moving the link member in the height direction, a gear portion engaged with the link member to rotate the link member, a link rotation restricting member for restricting a rotation range of the link member, and the cushion frame An operation unit that receives an operation of adjusting the height of the body; and a rotation operation unit that rotates the link member via the gear unit according to the operation of the operation unit; This is solved by restricting the movement of the operation unit by contacting the rotation operation unit.
- the movement of the operation portion can also be regulated by the link rotation regulating member that regulates the rotation range of the link member.
- the number of parts can be reduced compared to the case where a member for restricting the movement of the operation unit is provided separately from the link rotation restriction member. That is, according to the above-described vehicle seat, it is possible to reduce the number of parts required to restrict the movement of the operation unit operated to move the cushion frame in the height direction and the link member for moving the cushion frame. .
- the pivoting operation portion has a first projection and a second projection projecting from an outer peripheral portion
- the link rotation regulation member is configured to include the first projection and the second projection. It is preferable that the movement of the operation portion be regulated by being disposed between the projecting portions and the first projecting portion and the second projecting portion being in contact with the link rotation regulating member. By doing this, it is possible to regulate the rotation range of the rotation operation unit and the operation range of the operation unit with a simple configuration.
- each of the first protrusion and the second protrusion may be a flange which is bent inward in the seat width direction from the outer peripheral portion of the pivoting portion.
- the rigidity of the first protrusion and the second protrusion can be improved.
- the first and second protrusions can be disposed at positions that do not interfere with other members.
- the cushion frame has a side frame disposed on the side, and the link rotation restricting member is disposed outside the side frame in the seat width direction through a through hole provided in the side frame.
- the control unit and the rotation operation unit may be attached to the side of the left and right side frames to which the link rotation restriction member is attached.
- the pivoting action portion is an impact absorbing member for absorbing an impact when at least one of the first protrusion and the second protrusion abuts on the link rotation restricting member. It is good to have a part. By doing this, it is possible to absorb an impact when at least one of the first protrusion and the second protrusion abuts on the link rotation restricting member. Thereby, when the occupant operates the operation unit, it is possible to reduce the impact received when the limit of the operation range is reached.
- the impact absorbing portion is provided for the first projecting portion, a first notch portion formed on the opposite side to the side facing the second projecting portion, and the second projecting portion. It is good to have the 2nd notch provided in the side opposite to the side which counters the said 1st projection provided about a part. By doing this, it is possible to absorb the impact when the first protrusion and the second protrusion abut on the link rotation restricting member with a simple configuration. Thereby, when the occupant operates the operation unit, it is possible to further reduce the impact received when the limit of the operation range is reached.
- the cushioning material is disposed inside the cushioning frame, and the cushioning material vertically overlaps the portion of the link rotation regulating member on the inner side in the seat width direction with respect to the side frame. It is preferable that the cushion material does not overlap in the up-down direction at a portion of the link rotation restricting member outside the side frame in the seat width direction. By so doing, the cushioning material can be disposed in the necessary part, so that the increase in weight can be suppressed.
- the present invention it is possible to reduce the number of parts required to restrict the movement of the operation unit operated when moving the cushion frame in the height direction and the link member for moving the cushion frame.
- the rotation range of the rotation operation portion and the operation range of the operation portion can be regulated with a simple configuration.
- the rigidity of the first protrusion and the second protrusion can be improved.
- the movement of the operation unit can be more easily restricted by the link rotation restriction member.
- when the occupant operates the operation unit it is possible to reduce the impact received when the limit of the operation range is reached.
- FIG. 10 is a rear perspective view of the vicinity of the operation member of the height mechanism H.
- FIG. 10 is a side view of the vicinity of the operation member of the height mechanism H.
- FIG. 5 is a cross-sectional view taken along the line V-V of FIG. 4;
- FIG. 6 is a cross-sectional view taken along line VI-VI of FIG. It is VII-VII sectional drawing of FIG.
- It is a figure explaining the rotation range of a drive link.
- It is a figure explaining the operation range (rotation range) of an operation part.
- It is a perspective view of the sheet concerning a 2nd embodiment. It is a perspective view of a seat frame.
- FIG. 1 It is an enlarged view of the attachment part of an actuator. It is IV-IV sectional drawing of FIG. It is an enlarged view of the attachment part of the actuator in FIG. It is a VI-VI sectional view of FIG. It is a block diagram of the side which opposes the side frame of an actuator. It is a figure which shows the state of the side frame which attached the actuator. It is an outline view of a vehicular seat concerning a 3rd embodiment. It is a perspective view of the seat cushion frame of the vehicle seat concerning a 3rd embodiment. It is a perspective view showing a part of side frame of a vehicular seat concerning a 3rd embodiment. It is a perspective view showing a part of side frame of a vehicular seat concerning a 3rd embodiment. It is a perspective view showing a part of side frame of a vehicular seat concerning a 3rd embodiment.
- a vehicle seat S according to a first embodiment (hereinafter, the present embodiment) of the present invention will be described with reference to FIGS. 1 to 9.
- a vehicle seat mounted on a vehicle will be described as an example as the vehicle seat S, but a vehicle seat mounted on a ground traveling vehicle having wheels such as a car or a railway may be described.
- the seat is not limited, and may be a seat mounted on an aircraft, a ship, or the like that travels on the ground.
- the embodiments described below are merely examples for facilitating the understanding of the present invention, and do not limit the present invention. That is, the shapes, sizes, arrangements, etc. of members described below can be modified or improved without departing from the scope of the present invention, and it is a matter of course that the present invention includes the equivalents thereof.
- each direction of "upper and lower”, “front and rear”, and “left and right” corresponds to each direction of “upper and lower”, “front and rear”, and “left and right” when viewed from the seated person of the vehicle seat S. I assume.
- the vehicle seat S according to the present embodiment has the appearance illustrated in FIG. In FIG. 1, a part of the vehicle seat S (specifically, the front end corner portion of the seat cushion S1) is illustrated in a configuration in which the surface material 1a is removed for convenience of illustration.
- the vehicle seat S is disposed on the seat cushion S1 serving as a seating portion supporting the buttocks of the seated person, the seat back S2 serving as a backrest portion supporting the back of the seated person, and the seatback S2 As a main component.
- the seat cushion S1 is configured by placing the cushioning material 1b on the cushioning frame 10 serving as a skeleton shown in FIG. 2 and further covering the cushioning material 1b with the skin material 1a.
- the seatback S2 is configured by placing a cushioning material (not shown) on a seatback frame (not shown) and covering the cushioning material 1a.
- the headrest S3 is configured by arranging a cushioning material (not shown) on a core material (not shown) and covering the cushioning material 1a.
- the surface material 1a provided on the vehicle seat S is made of, for example, a material such as cloth or leather.
- the cushion material 1 b is a urethane base material molded by foam molding using, for example, a urethane foam material.
- the cushion frame 10 has a substantially rectangular frame outer shape when viewed from above.
- the cushion frame 10 connects the pair of side frames 11 respectively forming the left and right ends in the seat width direction, the pan frame 12 forming the front end of the cushion frame 10, and the left and right side frames 11 at the rear end And a connecting pipe 24 (pipe frame) as a main component.
- the left and right (pair) side frames 11 are disposed apart from each other in the seat width direction and extend in the front-rear direction.
- the connection pipe 24 is attached to the back side of the side frame 11, and the side frame 11 on either side is connected by the connection pipe 24 by the back side.
- a cylindrical end sleeve 28 is formed on the rear end side of the side frame 11.
- the end sleeve 28 can insert the connection pipe 24.
- the end sleeve 28 and the connection pipe 24 are welded in a state where the connection pipe 24 is inserted into the end sleeves 28 of the left and right side frames 11. As a result, the side frame 11 and the connecting pipe 24 are joined.
- the pan frame 12 is fixedly joined to the front side of the left and right side frames 11, and the left and right side frames 11 are connected by the pan frame 12 on the front side.
- the pan frame 12 is mainly for supporting the thighs of a seated person (passenger), and is a frame formed of a metal plate material whose upper surface is formed in a substantially flat and substantially rectangular shape.
- a pressure receiving member 25 is bridged between the pan frame 12 and the connecting pipe 24.
- the pressure receiving member 25 may be a leaf spring.
- a locking member 26 is attached to the rear end of the pressure receiving member 25. The front end of the pressure receiving member 25 is locked to the projection of the pan frame 12, and the locking member 26 provided on the rear end of the pressure receiving member 25 is locked to the connection pipe 24. The pressure receiving member 25 is attached to the
- the rear end of the cushion frame 10 is connected to a seat back frame (not shown) via a reclining mechanism (not shown).
- a well-known structure can be employ
- the cushion frame 10 is connected via a height mechanism H to a slide rail mechanism 30 installed on the vehicle body floor.
- the slide rail mechanism 30 mainly includes a lower rail 32 fixed to a vehicle body floor and an upper rail 31 sliding in the front and rear direction with respect to the lower rail 32.
- a fixed bracket 33 is attached to the upper rail 31, and a front link 34 and a drive link 40 of the height mechanism H are attached to the fixed bracket 33.
- the cushion frame 10 and the slide rail mechanism 30 are connected via the fixed bracket 33, the front link 34, and the drive link 40. Therefore, when the upper rail 31 slides relative to the lower rail 32, the cushion frame 10 slides back and forth relative to the lower rail 32 following the upper rail 31.
- the height mechanism H is a mechanism for adjusting the height of the cushion frame 10 with respect to the slide rail mechanism 30.
- the height mechanism H mainly includes the front link 34, the drive link 40, the link rotation restricting member 50, the operation member 60, and the gear portion 70.
- the operation member 60 is a member for receiving the height adjustment operation by the height mechanism H from the occupant. Specifically, as shown in FIG. 3 and FIG. 4, the operation member 60 includes an operation portion 61 disposed on the front side and a rotation operation portion 62 disposed on the rear side.
- the operation unit 61 is a handle that receives an operation of adjusting the height of the cushion frame 10. Specifically, at the front end of the operation portion 61, a grip portion 68 gripped by the occupant is attached, and the height adjustment of the cushion frame 10 is performed by moving the operation portion 61 up and down while holding the grip portion 68 Operation is possible.
- the rotation operation unit 62 is a member for transmitting the operation of the operation unit 61 to the gear unit 70, and is engaged with (engaged with) the gear unit 70.
- the pivoting operation unit 62 is pivotable about the pivoting shaft 65 of the gear unit 70, and the pivoting operation unit 62 pivots about the pivoting shaft 65 according to the operation of the operation unit 61. .
- the gear specifically, the pinion gear 71 constituting the gear unit 70 can be rotated.
- the gear portion 70 has a pinion gear 71 that meshes with the sector gear 41 of the drive link 40. Then, as the pinion gear 71 rotates in response to the operation of the operation unit 61, the position of the sector gear 41 meshing with the pinion gear 71 is changed.
- the gear unit 70 functions as a brake unit that rotates the pinion gear 71 in response to an input from the operation member 60 and restricts the rotation of the pinion gear 71 in response to other inputs.
- the drive link 40 has a sector gear 41, an opening 42, a through hole 43, and a pivot shaft 44.
- the drive link 40 is made of a metal plate member, and is provided on the side frame 11 outside the seat width direction (the left side in this example) among the side frames 11 constituting the cushion frame 10.
- the sector gear 41 is a gear tooth portion provided in a portion having a substantially fan-like outer shape of the drive link 40.
- the sector gear 41 meshes with the pinion gear 71, and in response to the rotation of the pinion gear 71, the drive link 40 pivots about the pivot shaft 44.
- the opening 42 is a substantially rectangular opening formed in a substantially central portion of the drive link 40. Then, the link rotation restricting member 50 extending in the sheet width direction is inserted into the opening 42.
- the through hole 43 is a hole formed on the rear end side of the drive link 40, and the end sleeve 28 of the side frame 11 is passed through the through hole 43, and a connection pipe is provided inside the end sleeve 28. 24 are welded.
- the connection pipe 24 held by the end sleeve 28 is also rotatable according to the drive link 40.
- the pivot shaft 44 is provided at the front end of the drive link 40 and is rotatably attached to the fixed bracket 33.
- the drive link 40 and the fixed bracket 33 can pivot on the pivot shaft 44 using a shaft member such as a pin.
- the drive link 40 in response to the rotation of the pinion gear 71 and the change in the position of the sector gear 41 meshing with the pinion gear 71, the drive link 40 is rotatable.
- the pivot shaft 44 is fixed to the fixed bracket 33, and the pivot shaft 44 together with the fixed bracket 33 can swing along the upper rail 31.
- the pinion gear 71 is rotated through the operation portion 61.
- the meshing position of the pinion gear 71 and the sector gear 41 changes.
- the drive link 40 pivots about the pivot shaft 44, whereby the drive link 40 and the front link 34 pivot while pivoting.
- the cushion frame 10 moves up and down, whereby the heights of the cushion frame 10 and the vehicle seat S are adjusted.
- a first projecting portion 63A and a second projecting portion 63B as flanges bent inward in the sheet width direction from the outer peripheral portion 66 are provided on the rear end side of the rotation acting portion 62.
- the first projecting portion 63A and the second projecting portion 63B are vertically separated from each other, and between the first projecting portion 63A and the second projecting portion 63B, a columnar link rotation restricting member fixed to the cushion frame 10 50 are distributed.
- the link rotation restricting member 50 is a member that restricts the rotation of the drive link 40, and as shown in FIGS. 6 and 7, the link rotation restricting member 50 is an opening of the drive link 40.
- the portion 42 protrudes through the through hole 11A of the side frame 11 to the outside of the seat.
- the link rotation restricting member 50 has a large diameter portion 51 whose diameter is larger than the through hole 11A of the side frame 11 and a small diameter portion 52 whose diameter is smaller than the through hole 11A of the side frame 11. Have. Then, in a state where the small diameter portion 52 of the link rotation regulating member 50 is passed through the through hole 11A of the side frame 11, the link rotation regulating member 50 is fixed to the fixing bracket 55 and the side frame 11 by welding or the like. There is.
- the cushion material 1 b is disposed on the inner side in the seat width direction than the side frame 11 in the link rotation regulating member 50. That is, the cushioning material 1 b is provided above at least a part of the large diameter portion 51 of the link rotation restricting member 50 which is on the inner side in the seat width direction than the side frame 11. On the other hand, the cushion material 1 b is not provided above the small diameter portion 52 of the link rotation regulating member 50 which is located on the inner side in the seat width direction than the side frame 11.
- the rotation acting portion 62 absorbs an impact when the first projecting portion 63A and the second projecting portion 63B abut on the link rotation regulating member 50.
- the shock absorbing portion 64 is provided.
- the first notch 63A is provided on the opposite side of the first protrusion 63A to the side facing the second protrusion 63B (or the link rotation restriction member 50) in the rotation action portion 62. It is done.
- the first notch portion 64A when the first protrusion portion 63A abuts on the link rotation restricting member 50, the first protrusion portion 63A is easily bent, thereby improving shock absorption. it can.
- the second notch portion 64B is provided in the rotation action portion 62 on the side opposite to the side facing the first protrusion portion 63A (or the link rotation regulating member 50) in the second protrusion portion 63B. .
- the second notch portion 64B when the second protrusion 63B abuts on the link rotation restricting member 50, the second protrusion 63B is easily bent, thereby improving shock absorption. it can.
- the first notch 64 ⁇ / b> A and the second notch 64 ⁇ / b> B formed in the rotation action unit 62 function as the shock absorbing unit 64. Thereby, when the rotation operation part 62 abuts on the link rotation restriction member 50, the shock transmitted to the hand of the occupant can be alleviated.
- the vehicle seat S is a vehicle seat capable of adjusting the height of the cushion frame 10.
- the vehicle seat S is rotatably attached to the cushion frame 10, and is engaged with the drive link 40 (an example of a link member) for moving the cushion frame 10 in the height direction according to the rotation, and the drive link 40.
- the movement of the operation unit 60 is restricted by the link rotation restriction member 50 coming into contact with the rotation operation part 62.
- the movement of the operation unit 60 can also be regulated by the link rotation regulating member 50 that regulates the rotation range of the drive link 40.
- the number of parts can be reduced compared to the case where a member for restricting the movement of the operation unit 60 is provided separately from the link rotation restricting member 50. That is, according to the vehicle seat S according to the present embodiment, the movement of the operation unit 60 operated when moving the cushion frame 10 in the height direction and the drive link 40 for moving the cushion frame 10 are restricted. The number of parts required to
- the pivoting operation portion 62 has a first projecting portion 63A and a second projecting portion 63B which project from the outer peripheral portion 66, and the link pivoting control member 50 is a first projecting portion 63A. And the second protrusion 63B. Then, the movement of the operation unit 60 is restricted by the first projection 63A and the second projection 63B coming into contact with the link rotation restriction member 50. By doing this, it is possible to restrict the rotation range of the rotation operation part 62 and the operation range of the operation part 60 with a simple configuration.
- the first projecting portion 63A and the second projecting portion 63B are flanges bent inward in the seat width direction from the outer peripheral portion 66 of the rotation acting portion 62. By doing this, the rigidity of the first protrusion 63A and the second protrusion 63B can be improved. Further, by causing the first projecting portion 63A and the second projecting portion 63B to project inward in the sheet width direction, the first projecting portion 63A and the second projecting portion 63B can be disposed at positions where they do not interfere with other members.
- the cushion frame 10 has the side frame 11 disposed on the side, and the link rotation restricting member 50 allows the seat from the side frame 11 through the through hole 11A provided in the side frame 11 Project outward in the width direction.
- the operation unit 60 and the rotation operation unit 62 are attached to the side of the left and right side frames 11 to which the link rotation restriction member 50 is attached.
- the pivoting operation portion 62 is an impact for absorbing an impact when at least one of the first projecting portion 63A and the second projecting portion 63B abuts on the link pivoting restriction member 50.
- the absorbing unit 64 is provided. By doing this, it is possible to absorb an impact when at least one of the first protrusion 63A and the second protrusion 63B abuts on the link rotation restricting member 50. Thereby, when the occupant operates the operation unit 60, it is possible to reduce the impact received when the limit of the operation range is reached.
- the impact absorbing portion 64 is provided for the first projecting portion 63A, the first notch portion 64A formed on the opposite side to the side facing the second projecting portion 63B, and the second notched portion And a second notch 64B formed on the side opposite to the side facing the first protrusion 63A, which is provided for the protrusion 63B.
- the vehicle seat S includes the cushion material 1 b disposed inside the cushion frame 10.
- the cushion material 1 b overlaps the link rotation regulating member 50 in the seat width direction with respect to the side frame 11 on the inner side in the seat width direction, and the link rotation regulating member 50 in the seat width direction outside the side frame 11. In the portion, the cushioning material 1 b does not overlap in the vertical direction. By doing this, the cushioning material 1b can be disposed in the necessary part, and therefore, an increase in weight can be suppressed.
- the present invention is not limited to the above embodiment.
- the operation unit 61 and the rotation operation unit 62 are integrated as one member in the above embodiment, the operation unit 61 and the rotation operation unit 62 may be configured as separate members.
- both of the first protrusion 63A and the second protrusion 63B are provided to the rotation action unit 62, but only one may be provided. Further, in the above embodiment, both the first notch 64A and the second notch 64B are provided in the pivoting portion 62, but only one may be provided.
- ⁇ Vehicle seat according to the second embodiment> Next, a vehicle seat according to a second embodiment will be described. In the description of the vehicle seat according to the second embodiment, a subject related to the vehicle seat will be described.
- Some vehicle seats are provided with a reclining mechanism that tilts the seat back with respect to the seat cushion.
- a reclining mechanism that tilts the seat back with respect to the seat cushion.
- Japanese Patent Application Laid-Open No. 2016-166020 discloses a mechanism that causes an actuator to rotate a reclining shaft that is inserted into a side frame of a seatback.
- This invention is made in view of said subject, The objective is to provide the vehicle seat which can improve the attachment property of the elastic member for reducing the vibration transmitted to an flame
- the subject is a pad for supporting an occupant, a frame member in contact with the pad, an actuator attached to the frame member, the frame member, and the actuator Between the frame member and each of the actuators, the elastic member extending toward the actuator and having a covering portion covering a part of the actuator. Resolved by.
- the actuator can be attached to the frame member in a state in which the elastic member disposed between the actuator and the frame member is placed on the actuator. Thereby, attachment of the elastic member disposed between the actuator and the frame member can be facilitated. Further, since the actuator is attached to the frame member via the elastic member, the vibration transmitted from the actuator to the frame member can be reduced.
- the pad may have a storage space for storing the elastic member and the frame member.
- the elastic member can be disposed in the storage space of the pad.
- the actuator and the elastic member may be attached to the inside in the seat width direction of the frame member. By doing this, the actuator and the elastic member do not project outward from the frame member in the sheet width direction. Thus, the vehicle seat can be made compact in the seat width direction.
- the frame member is a seat back frame having side frames disposed on the left and right, the actuator is attached to the side frame, and the elastic member is the side frame and the actuator. , And abut on each of the side frame and the actuator.
- vibration transmission to the side frame can be suppressed by providing the elastic member between the actuator and the side frame.
- the side frame has a through hole penetrating in the seat width direction
- the actuator has a bolt inserted into the through hole
- the elastic member is attached to the bolt.
- the side frame may be sandwiched by a fastening member attached to the bolt and the elastic member.
- the side frame may have a recess that is recessed inward in the seat width direction, and the actuator may be attached to the recess.
- the vehicle seat may further include an airbag module attached to the side frame, and a portion of the side frame to which the airbag module is attached may be at a position other than the recess. By doing this, it is possible to suppress the transmission of the vibration of the actuator to the mounting portion of the air bag module. Thereby, the malfunction of the airbag can be prevented, and the airbag can be stably deployed.
- the side frame may have a bead, and the upper end of the recess may be located between the bead and the through hole.
- the seat back frame may have a lower frame connecting lower portions of the left and right side frames, and the elastic member may not be in contact with the lower frame. This eliminates the need to form a through hole for attaching the actuator to the lower frame. Therefore, the design freedom of the lower frame can be improved. In addition, since the length of the lower frame in the sheet width direction can be shortened, the size of the lower frame can be reduced.
- the vehicle seat includes a pressure receiving member attached to the seat back frame, and the pressure receiving member is located below the first attachment portion attached to the seat back frame and the first attachment portion.
- the second attachment portion may be attached to the seat back frame, and the elastic member may be disposed between the first attachment portion and the second attachment portion in the vertical direction.
- the vibration transmitted from the actuator to the frame member can be reduced.
- the elastic member can be disposed in the storage space of the pad.
- the vehicle seat can be made compact in the seat width direction.
- vibration transmission to the side frame can be suppressed.
- the elastic member when the actuator is fastened to the frame member by the fastening member from the outside in the width direction of the seat, the elastic member can be prevented from being damaged.
- the vehicle seat of the second embodiment described below interference of the bolt of the actuator with a member inside the seat can be suppressed. According to the vehicle seat of the second embodiment described below, it is possible to suppress transmission of the vibration of the actuator to the mounting portion of the air bag. According to the vehicle seat of the second embodiment described below, the rigidity of the side frame can be improved. According to the vehicle seat of the second embodiment described below, the size of the lower frame can be reduced. According to the vehicle seat of the second embodiment described below, it is possible to suppress the transmission of vibration from the pressure receiving member to the occupant.
- a vehicle seat S200 as a vehicle seat according to a second embodiment (hereinafter, the second embodiment) of the present invention will be described with reference to FIGS. 10 to 17.
- a vehicle seat mounted on a vehicle will be described as an example as the vehicle seat S200, but a vehicle seat mounted on a ground traveling vehicle having wheels such as a car or a railway
- the seat is not limited to the above, and may be a seat mounted on an aircraft, a ship, etc. that travels off the ground.
- the second embodiment described below is merely an example for facilitating the understanding of the present invention, and does not limit the present invention. That is, the shapes, sizes, arrangements, etc. of members described below can be modified or improved without departing from the scope of the present invention, and it is a matter of course that the present invention includes the equivalents thereof.
- each direction of “upper and lower”, “front and rear”, and “right and left” corresponds to each of “upper and lower”, “front and rear”, and “left and right” when viewed from the seated person of the vehicle seat S200 I assume.
- the vehicle seat S200 has an appearance illustrated in FIG. In FIG. 10, a portion of the vehicle seat S200 (specifically, the front end corner portion of the seat cushion S202) is illustrated in a configuration in which the surface material R is removed for the sake of illustration.
- the vehicle seat S200 is disposed on the seatback S201 serving as a backrest portion supporting the back of the seated person, the seat cushion S202 serving as a seating portion supporting the buttocks of the seated person, and the seatback S201 As a main component.
- the seat back S201 is configured by placing the pad U on the seat back frame 210, which is a skeleton shown in FIG. 11, and further covering the pad U with the surface material R.
- the seat cushion S202 is configured by placing the pad U on the seat cushion frame 220 which is a skeleton shown in FIG.
- the headrest S203 is configured by arranging a cushioning material (not shown) on a core material (not shown) and covering it with a skin material R.
- the surface material R provided on the vehicle seat S200 is made of, for example, a material such as cloth or leather.
- the pad U is a urethane base material molded by foam molding using, for example, a urethane foam material.
- the seat frame F mainly includes a seat back frame 210 and a seat cushion frame 220.
- the seat back frame 210 forms a framework of the seat back S201
- the seat cushion frame 20 forms a framework of the seat cushion S202.
- the seat back frame 210 connects the inverted U-shaped upper frame 211, the pair of side frames 212 forming the left and right ends in the seat width direction, and the lower ends of the pair of side frames 212. And a lower frame 213.
- the upper frame 211 is welded to the side frame 212 at both lower portions of the upper frame 211. Further, the headrest mounting portion is attached to the upper end of the upper frame 211 by welding.
- the headrest mounting portion is a tubular body through which two headrest stays hanging from the headrest S203 are inserted.
- the pivot shaft 225 of the reclining mechanism 235 is attached between the lower ends of the left and right side frames 212 in a state of passing through the left and right side frames 212.
- the pivot shaft 225 is rotated by the power applied by the actuator 250. Specifically, the pivot shaft 225 is inserted into an insertion hole formed in the actuator 250 and is engaged with the output shaft of the actuator 250. Therefore, when the output shaft of the actuator 250 is rotated, the pivot shaft 225 inserted in the output shaft is rotated. As a result, the driving force of the actuator 250 is transmitted to the reclining mechanism 235 via the pivot shaft 225, and the reclining mechanism 235 is finally operated.
- the actuator 250 is driven by operating a reclining operation unit (not shown). Thereby, the reclining mechanism 235 is operated, and the angle of the seat back S201 with respect to the seat cushion S202 can be adjusted.
- the side frame 212 is a plate-like frame having a U-shaped cross section, and a concave portion 212A is formed in the lower portion of the flat plate portion to be the side plate.
- the recess 212A is a portion formed by recessing the flat plate portion of the side frame 212 inward in the seat width direction.
- the through-hole 212C is formed in the recessed part 212A, and it extends to the sheet width direction outer side from the attaching part 251 of the actuator 250 in the through-hole 212C.
- the bolt 253 is inserted.
- An elastic member 252 is attached to the bolt 253.
- the elastic member 252 has an outer diameter slightly larger than that of the cylindrical attachment portion 251, and a hole through which the bolt 253 can be inserted is formed at the center.
- the elastic member 252 is a cap-like member attached so as to cover the end of the attachment portion 251.
- the elastic member 252 is made of rubber. Specifically, as shown in FIG.
- the elastic member 252 has a contact portion 252A disposed between the attachment portion 251 and the side frame 212, and a through hole provided in the contact portion 252A and passing the bolt 253. 252B, and a covering portion 252C which extends from the abutting portion 252A toward the actuator 250 and covers a part of the mounting portion 251.
- the bolt 253 is passed through the through hole 252B of the elastic member 252 and the covering portion 252C of the elastic member 252 is fitted to the mounting portion 251, the bolt 253 is inserted to the through hole 212C of the side frame 212 from the inside in the sheet width direction. Pass through. Then, a nut 254 as a fastening member is screwed on and fastened to an end portion of a bolt 253 projecting outward in the seat width direction from the side frame 212.
- the actuator 250 can be attached to the side frame 212 in a state where the elastic member 252 is attached to the attachment portion 251 of the actuator 250 as described above. As a result, the elastic member 252 does not easily come off the actuator 250.
- the covering portion 252C of the elastic member 252 can be viewed from various angles, so whether or not the elastic member 252 is attached It becomes possible to easily check the
- the fixing of the actuator 250 can be made firm.
- the actuator 250 is not in direct contact with the side frame 212. That is, the elastic member 252 is disposed between the actuator 250 and the side frame 212. In other words, the inner surface of the elastic member 252 in the seat width direction abuts on the attachment portion 251 of the actuator 250, and the outer surface of the elastic member 252 in the seat width direction abuts on the side frame 212.
- the elastic member 252 is disposed on the inner side in the seat width direction with respect to the side frame 212. That is, the side frame 212 is sandwiched between the elastic member 252 and the nut 254. By doing this, the nut 254 screwed to the bolt 253 does not directly contact the elastic member 252, so that damage to the elastic member 252 by the nut 254 can be avoided at the time of fastening by the nut 254.
- the attachment portion 251 of the actuator 250 is attached to the side frame 212, but is not attached to the lower frame 213. As described above, by attaching the mounting portion 251 of the actuator 250 only to the side frame 212, the vibration is less likely to be transmitted from the mounting portion 251 to the lower frame 213.
- the actuator 250 is disposed in a housing space 280 formed inside the pad U.
- an airbag module 260 is attached to the outside in the seat width direction of the side frame 212.
- an air bag mounting hole 212D and an air bag mounting hole 212E are formed in the flat plate portion of the side frame 212, and the air bag mounting hole 212D and the air bag mounting hole are formed.
- the air bag module 260 is attached at 212E.
- the air bag module 260 mainly includes an air bag 261, an inflator 262, a stud bolt 263 and a retainer 264.
- the air bag module 260 is fixed to the side frame 212 as follows.
- the stud bolt 263 extends inward in the seat width direction from the inflator 262.
- the air bag module 260 is screwed to the side frame 212 by screwing the nut 265 from the inside in the seat width direction. Is attached.
- the operation of the air bag module 260 will be described.
- the inflator 262 generates a gas by receiving an operation signal in response to a collision of a vehicle, and the air bag 261 expands by receiving the injection of the gas generated by the inflator 262.
- the air bag 261 presses the webbing 270 held by the edge of the skin R and the webbing attachment clip 271 fixed to the side frame 212, whereby the edge of the web R is obtained. It fractures and expands from the fractured part to the outside of the seat back S201.
- the air bag mounting hole 212D and the air bag mounting hole 212E for mounting the air bag module 260 are different from the concave portion 212A. It is provided in different positions. In other words, the air bag mounting hole 212D and the air bag mounting hole 212E for mounting the air bag module 260 are formed at a higher position than the step portion 212B which is the upper end of the recess 212A of the side frame 212.
- an inverted F-shaped bead 212F is formed on the flat plate portion of the side frame 212, and the strength of the flat plate portion of the side frame 212 is improved.
- the stepped portion 212 B of the side frame 212 is located between the lower end of the seat frame F and the recess 212 A of the side frame 212. That is, the upper end of the recess 212A is located between the lower end of the seat frame F and the recess 212A of the side frame 212.
- the air bag attachment hole 212D and the air bag attachment hole 212E are formed at a position straddling the bead 212F, whereby the strength of the attachment portion of the air bag module 260 is improved.
- a pressure receiving member 215 for receiving a load from a passenger is provided at the center of the seatback frame 210.
- the pressure receiving member 215 is supported by the seat back frame 210 at the first attachment portion 216 and the second attachment portion 217.
- the pressure receiving member 215 supports the back of the occupant, and is formed of an elastic member such as a leaf spring or an S spring.
- the first attachment portion 216 is a member locked to the side frame 212.
- the first attachment portion 216 may be locked to the upper frame 211 provided above the pressure receiving member 215 or a cross member provided to the upper frame 211.
- the second attachment portion 217 is a member provided below the first attachment portion 216 and engaged with the lower frame 213 connecting the left and right side frames 212.
- the pressure receiving member 215 is fixed to the seat back frame 210 by the first attachment portion 216 and the second attachment portion 217.
- the elastic member 252 is disposed between the first mounting portion 216 and the second mounting portion 217 in the vertical direction. This makes it difficult for the vibration of the actuator 250 to be transmitted to the pressure receiving member 215 through the first mounting portion 216 and the second mounting portion 217.
- the seat cushion frame 220 has a rectangular frame-like outer shape when viewed from above.
- the seat cushion frame 220 includes left and right cushion side frames 221 respectively forming left and right ends in the seat width direction, a pan frame 222 connecting front ends of the left and right cushion side frames 221, and left and right cushion side frames 221.
- a connecting pipe 224 connecting the rear end portions of the two.
- the connecting pipe 224 is a hollow member such as a round pipe.
- the seat back frame 210 and the seat cushion frame 220 are connected via the reclining mechanism 235 and the connection bracket 223, and as described above, the seat back frame 210 has an angle with respect to the seat cushion frame 220 by the reclining mechanism 235. It is possible to adjust.
- the seat cushion frame 220 is connected to the slide mechanism 230 via the height mechanism 240.
- the slide mechanism 230 mainly includes a lower rail 231 fixed to the vehicle body floor and an upper rail 232 sliding forward and backward with respect to the lower rail 231.
- the height mechanism 240 is attached to the upper rail 232, and when the upper rail 232 slides with respect to the lower rail 231, the seat frame F slides with the upper rail 232 with respect to the lower rail 231.
- the height mechanism 240 has a plurality of links, and the height of the seat cushion frame 220 with respect to the vehicle body floor (or the upper rail 232) can be adjusted by rotating the links electrically or manually.
- a well-known mechanism can be used for the height mechanism 240, it abbreviate
- the elastic member 252 is attached to the attachment portion 251 of the actuator 250, and the actuator 250 is attached to the side frame 212 via the elastic member 252. Thereby, transmission of the vibration of the actuator 250 to the seat back frame 210 including the side frame 212 can be suppressed.
- a vehicle seat S200 (an example of a vehicle seat) according to the second embodiment includes a pad U for supporting an occupant, a seat frame F (an example of a frame member) in contact with the pad U, and an actuator attached to the seat frame F 250, and an elastic member 252 provided between the seat frame F and the actuator 250 and in contact with the seat frame F and the actuator 250, and the elastic member 252 extends toward the actuator 250. And a covering portion 252C that covers a part of the light emitting diode.
- the actuator 250 can be attached to the seat frame F in a state in which the elastic member 252 disposed between the actuator 250 and the seat frame F is covered on the actuator 250. Thereby, the attachment of the elastic member 252 disposed between the actuator 250 and the seat frame F can be facilitated. Further, since the actuator 250 is attached to the seat frame F via the elastic member 252, the vibration transmitted from the actuator 250 to the seat frame F can be reduced.
- the pad U has an accommodation space 280 for accommodating the elastic member 252 and the side frame 212.
- the elastic member 252 can be disposed in the accommodation space 280 of the pad U.
- the actuator 250 and the elastic member 252 are attached to the inner side of the seat frame F in the seat width direction. By doing this, the actuator 250 and the elastic member do not protrude from the seat frame F outward in the seat width direction. Thus, the vehicle seat S200 can be made compact in the seat width direction.
- the frame member is the seat back frame 210 provided with the side frames 212 arranged on the left and right.
- the actuator 250 is attached to the side frame 212, and the elastic member 252 is provided between the side frame 212 and the actuator 250 and abuts on the side frame 212 and the actuator 250 respectively.
- vibration transmission to the side frame 212 can be suppressed.
- the side frame 212 has a through hole 212C penetrating in the seat width direction, and the actuator 250 has a bolt 253 inserted through the through hole 212C.
- the elastic member 252 is attached to the bolt 253, and the side frame 212 is sandwiched by the nut 254 (an example of a fastening member) attached to the bolt 253 and the elastic member 252.
- the side frame 212 has a recess 212A that is recessed inward in the seat width direction, and the actuator 250 is attached to the recess.
- the actuator 250 is attached to the recess.
- the above-described vehicle seat S200 includes the airbag module 260 attached to the side frame 212, and a portion of the side frame 212 to which the airbag module 260 is attached is a position other than the recess 212A. By doing this, it is possible to suppress transmission of the vibration of the actuator 250 to the mounting portion of the air bag module 260. Thereby, the malfunction of the airbag can be prevented, and the airbag can be stably deployed.
- the side frame 212 has a bead 212F, and the upper end (stepped portion 212B) of the recess 212A is located between the bead 212F and the through hole 212C.
- the seat back frame 210 has the lower frame 213 connecting the lower portions of the left and right side frames 212, and the elastic member 252 is not in contact with the lower frame 213. By doing this, it is not necessary to form a through hole for attaching the actuator 250 to the lower frame 213. Therefore, the design freedom of the lower frame 213 can be improved. Further, since the length of the lower frame 213 in the sheet width direction can be shortened, the size of the lower frame 213 can be reduced.
- the above-described vehicle seat S200 has a pressure receiving member 215 attached to the seat back frame 210.
- the pressure receiving member 215 has a first attachment portion 216 attached to the seat back frame 210 and a second attachment portion 217 located below the first attachment portion 216 and attached to the seat back frame 210.
- the elastic member 252 is disposed between the first mounting portion 216 and the second mounting portion 217 in the vertical direction. By doing this, it can be suppressed that the vibration is transmitted to the first attachment portion 216 and the second attachment portion 217 of the pressure receiving member 215 via the seat back frame 210.
- Embodiments The present invention is not limited to the second embodiment described above.
- the elastic member 252 is attached also to the actuator 250 attached to the seat cushion frame 220. May be provided.
- the elastic member 252 attached to the attachment portion 251 of the actuator 250 from the rear of the seat frame F may be configured to be identifiable by cutting out a part of the pad U.
- ⁇ Vehicle seat according to the third embodiment> Next, a vehicle seat according to a third embodiment will be described. In describing the vehicle seat according to the third embodiment, the subject regarding the vehicle seat will be described.
- a vehicle seat is formed by mounting a cushion pad on a seat frame and covering a trim cover.
- a U-shaped resin hook is sewn on the end of the trim cover to lock the trim cover terminal in such a vehicle seat, and the resin This is done by hooking the hook to the seat frame.
- the present invention has been made in view of the above problems, and an object thereof is to apply a load even when the trim cover is moved due to being applied to the seat cushion or when the seat can be tilted up.
- An object of the present invention is to provide a vehicle seat in which the trim cover is prevented from coming off the seat frame by restricting the position of the retaining member relative to the seat frame.
- the subject is a vehicle seat provided with a seat cushion
- the seat cushion includes a cushion frame and a pad member placed on the cushion frame.
- a trim cover for covering the pad member, and a hooking member provided with a projecting portion is attached to the trim cover, and the cushion frame is an engaging portion extending in the seat longitudinal direction.
- the present invention is solved by inserting and engaging the protrusion of the hooking member with the engaging portion of the side frame.
- the protruding portion of the hooking member is inserted into and engaged with the engaging portion extending in the seat longitudinal direction of the cushion frame, It becomes possible to regulate the position of the hooking member in the longitudinal direction of the seat. Therefore, when the trim cover moves due to an excessive load being applied to the seat cushion, or in the case of a seat that can be tilted up, even if the retaining member moves in the direction of disengaging from the cushion frame, the retaining member is removed from the cushion frame It is suppressed that it separates.
- the hooking member is an outer side arrangement portion which is disposed on an outer side in a width direction of the vehicle seat of the side frame in a state of being engaged with the side frame; It is preferable that the vehicle seat further includes an inner placement portion disposed on the inner side in the width direction of the vehicle seat, and the projecting portion protrudes outward in the width direction of the vehicle seat from the inner placement portion.
- the protrusion protrudes outward from the inner side of the side frame in the seat width direction to engage with the engaging portion, so that the retaining member is appropriately prevented from being detached from the cushion frame.
- the side frame is formed with a concave portion recessed inward in the width direction of the vehicle seat, and the concave portion is an engagement surface portion on which the engagement portion is disposed.
- the length of the outside arrangement portion in the front-rear direction of the vehicle seat may be longer than the length of the engagement surface portion.
- the engagement portion may be disposed forward of the center of the seat cushion in the front-rear direction.
- the engagement portion of the side frame with which the projection of the engagement member engages is disposed on the front side of the center of the seat cushion, whereby the engagement member is engaged with the occupant (seated person) getting on and off. It is suppressed that it separates from a cushion frame.
- the engagement portion may be disposed outside the side frame in the width direction of the vehicle seat. In the above configuration, the workability at the time of hooking the hooking member on the engaging portion is improved.
- the engagement portion may be provided inside the outer end surface of the side frame in the width direction of the vehicle seat.
- the engaging portion is provided inside the outer end surface of the side frame, and therefore, even when the occupant comes in contact with the outer end surface of the side frame when performing an operation of getting on and off the passenger, The member is prevented from coming off the cushion frame.
- the side frame may include a main body portion and a bracket member attached to the main body portion, and the engagement portion may be formed on the bracket member.
- the engaging portion is provided in a member different from the main body portion of the side frame, it is easy to design.
- the bracket member includes a base portion and an attachment portion provided by bending from the base portion, and the main body portion of the side frame is in the width direction of the vehicle seat.
- the flange may be extended inward, and the attachment may be fixed to the side frame at the flange.
- the bracket member having the engaging portion is stably attached to the main body of the side frame, so that the hooking of the hooking member to the side frame is stable.
- the bracket member may be fixed to the main body of the side frame in the width direction of the vehicle seat.
- the bracket member in which the engaging portion is formed is attached to the main body of the side frame in the seat width direction, the hooking of the hooking member to the side frame is stabilized.
- the bracket member may be a part of an inclination mechanism that inclines the seat cushion. In the above configuration, even in a vehicle seat capable of tilting (tilting up) the seat cushion, detachment of the retaining member from the cushion frame during tilting operation of the seat cushion is suppressed.
- the side frame of the side frame is located at a position where the outside placement portion of the retaining member abuts the side frame and the inside placement portion is separated from the outside placement portion in the seat width direction.
- the position of the latch member in the sheet width direction is regulated.
- the engaging portion of the side frame with which the protruding portion of the hooking member engages is disposed forward of the center of the seat cushion, thereby It is suppressed that a latching member remove
- the workability at the time of hooking the hooking member on the engaging portion is improved.
- the engaging portion when the engaging portion is provided inside the outer end surface of the side frame, the occupant can perform the operation of getting on or off the passenger, Even when contacting the outer end surface of the frame, the retaining member is prevented from being detached from the cushion frame.
- the engaging portion since the engaging portion is provided in a member different from the main body portion of the side frame, it is easy to design.
- the bracket member having the engaging portion is stably attached to the main body of the side frame, so that the hooking member is hooked to the side frame. Stabilize. Further, according to the vehicle seat according to the third embodiment described below, the bracket member having the engaging portion is attached to the base of the side frame in the seat width direction, so that the hooking member is hooked to the side frame Stabilize. Further, according to the vehicle seat according to the third embodiment described below, the hooking member is disengaged from the cushion frame at the time of the tilting operation of the seat cushion even in the vehicle seat capable of tilting (tilting up) the seat cushion. Is suppressed.
- a seat frame of a vehicle seat S300 according to a third embodiment (hereinafter, the third embodiment) of the present invention will be described with reference to FIGS. 18 to 25B.
- a seat frame concerning this embodiment, although a seat frame which makes a frame of a vehicle seat carried in vehicles is mentioned as an example and explained, it is not limited to a seat frame of a vehicle seat.
- the third embodiment described below is merely an example for facilitating the understanding of the present invention, and does not limit the present invention. That is, the shapes, sizes, arrangements, etc. of members described below can be modified or improved without departing from the scope of the present invention, and it is a matter of course that the present invention includes the equivalents thereof.
- the “front-rear direction” means the front-rear direction when viewed from the seated person of the vehicle seat, and is a direction coinciding with the traveling direction of the vehicle.
- the “seat width direction” means the width direction of the vehicle seat, which coincides with the left-right direction when viewed from the seated person of the vehicle seat.
- vertical direction means the height direction of the vehicle seat, which is the same as the vertical direction when the vehicle seat is viewed from the front.
- “Seat inward direction” means the inward direction of the vehicle seat (direction toward the center of the vehicle seat), and “inward direction of the seat frame” means the inward direction of the seat frame (direction toward the center of the seat frame) Means).
- the vehicle seat S300 according to the third embodiment has the appearance illustrated in FIG. In FIG. 1, a part of the vehicle seat S300 (specifically, a front end corner portion of the seat cushion S301) is illustrated in a configuration in which the trim cover 401 is removed for the sake of description.
- the vehicle seat S300 is disposed on the seat cushion S301 serving as a seating portion supporting the buttocks of the seated person, the seat back S302 serving as a backrest portion supporting the back of the seated person, and the seatback S302 As a main component.
- Each of the seat cushion S301 and the seat back S302 is configured by placing a cushion pad 400 on a seat cushion frame 301 and a seat back frame (not shown) described later, and covering the cushion pad 400 with a trim cover 401.
- the seat cushion S301 and the seat back S302 employ
- the seat cushion S301 includes a seat cushion frame 301, a cushion pad 400 mounted on the seat cushion frame 301, and a trim cover 401 covering the seat cushion frame 301 and the cushion pad 400.
- the cushion pad 400 is made of an elastic cushion material such as urethane foam
- the trim cover 401 is made of synthetic leather, cloth or the like, and is formed by sewing a plurality of skin materials.
- the seat cushion frame 301 is supported by a leg, and the inner rail is attached to the leg, and the seat cushion frame 301 is slidably assembled so as to be positionally adjustable in the front-rear direction with the outer rail installed on the vehicle floor. There is. Further, a rear end portion of the seat cushion frame 301 is connected to a seat back frame (not shown) via a reclining mechanism (not shown).
- the seat cushion frame 301 has a rectangular frame-like outer shape when viewed from above, as shown in FIG.
- the seat cushion frame 301 includes side frames 301a and 301b that form ends in the seat width direction, a pan frame 301c that forms the front end of the seat cushion frame 1, a right side frame 301a, and a left side frame 301b. And a connecting pipe 301d that connects the two.
- the two (pairs) side frames 301a and 301b are spaced apart in the left-right direction, and extend in the front-rear direction.
- the connecting pipe 301d is attached to the rear side of the side frames 301a and 301b, and the left and right side frames 301a and 301b are connected on the rear side by the connecting pipe 301d.
- the pan frame 301c is fixedly joined to the front side of the pair of side frames 301a and 301b, and the left and right side frames 301a and 301b are connected on the front side by the pan frame 301c. More specifically, the ends in the left-right direction of the pan frame 301c are fixed to the flanges provided on the side frames 301a and 301b by fixing means such as welding.
- the pan frame 301c is mainly for supporting the thighs of a seated person (passenger), and is a frame formed of a metal plate material whose upper surface is formed in a substantially flat and substantially rectangular shape.
- the pan frame 301 c includes a front bending portion whose front end is bent downward and a rear bending portion which is bent downward at the rear end. Further, a support surface having a substantially flat upper surface is provided between the front bent portion and the rear bent portion. The left and right ends of the support surface are fixed to the flanges of the side frames 301a and 301b, respectively (FIG. 19).
- FIG. 20A is a perspective view showing the tilt bracket 320 attached to the side frame 301b as viewed from the outside in the seat width direction
- FIG. 20B is a seat width direction showing the tilt bracket 320 attached to the side frame 301b.
- FIG. 21A is a front view of the tilt bracket 320
- FIG. 21B is a top view of the tilt bracket 320.
- the side frame 301b mainly includes a side frame main body 310 extending in the longitudinal direction of the seat and a tilt bracket 320 attached to the side frame main body 310, and an inclination mechanism such as a link member 312. (Tilt up mechanism) is attached.
- the side frame main body 310 includes a flange portion 310 a extending in the seat frame inward direction.
- An upper mounting portion 328 of a tilt bracket 320 which will be described later, is attached to the flange portion 310a by fastening members 311a and 311b.
- the front attachment portion 322 of the tilt bracket 320 is attached to the side frame main body 310 by the fastening member 313, and the rear attachment portion 323 of the tilt bracket 320 is attached by the fastening member 314.
- the tilt bracket 320 includes a base 321, a front attachment 322 provided at the front end of the base 321, a rear attachment 323 provided at the rear end of the base 321, and a front.
- An extending portion 324 provided between the attaching portion 322 and the rear attaching portion 323 is provided.
- attachment holes 322a and 3 attachment holes 23a for inserting the fastening members are respectively provided.
- An engagement recess 325 is provided in the extension portion 324, and an engagement hole 326 extending in a longitudinal direction (a sheet longitudinal direction) of the base 321 is provided in an engagement surface portion 325a which is a bottom portion of the engagement recess 325. It is drilled.
- a buckle attachment portion 327 for attaching a seat belt buckle (not shown) is provided on the rear side of the extension portion 324. The buckle attachment portion 327 is provided with a buckle attachment hole 327a for inserting the fastening member.
- the tilt bracket 320 is bent from the base portion 321 to form an upper mounting portion 328.
- a mounting hole 328a is formed on the front side of the upper mounting portion 328, and a mounting hole 328b is formed on the rear side of the upper mounting portion 328. Are drilled out (FIG. 21B).
- a link member 312 is attached via a fastening member 313 between the side frame main body 310 and the front attachment portion 322 of the tilt bracket 320 in the seat width direction.
- the link member 312 and the tilt bracket 320 are part of an inclination mechanism (tilt-up mechanism) that lifts the seat surface of the seat cushion S301.
- the engagement hole 326 of the tilt bracket 320 corresponds to an engagement portion into which a hook portion 333 (a protrusion) of the hook member 330 described later is inserted.
- FIG. 22A-22C illustrate a retaining member 330 according to a third embodiment.
- 22A is a perspective view of the hook member 330 sewed on the trim cover 401
- FIG. 22B is a cross-sectional view taken along the line BB in FIG. 22A
- FIG. 22C is a cross-sectional view taken along the line CC in FIG. is there.
- a hooking member 330 made of resin and having a J-shaped cross section is sewn.
- the hooking member 330 includes a base portion 331, a curved portion 332 formed by being curved from the base portion 331, and a hook portion 333 extending from the curved portion 332.
- the hooking member 330 has a hook portion 333 at the end opposite to the sewing portion with the trim cover 401.
- a housing portion 334 for housing the extension portion 324 of the tilt bracket 320 is formed on the inside of the J-shape of the hooking member 330.
- the hook portion 333 is formed to extend from a portion of the curved portion 332. Specifically, the distance L between the first side end face 331 a and the second side end face 331 b in the longitudinal direction of the base portion 331 (the length L in the longitudinal direction of the base portion 331) It is set to be longer than the distance between the side end face 333a and the second side end face 333b (the length in the longitudinal direction of the hook portion 333).
- the first side end face 333a of the hook portion 333 is closer to the second side end face 331b than the first side end face 331a of the base 331, and the second side end face 333b of the hook portion 333 is the second side of the base 331
- the hook portion 333 is formed to be closer to the first side end face 331 a than the end face 331 b.
- the protruding direction of the hook portion 333 is formed to be the direction toward the inside of the J shape (in other words, the direction toward the base 331).
- the extension portion 324 of the tilt bracket 320 is accommodated in the accommodation portion 334 of the hooking member 330, and the hook portion 333 (projecting portion) of the hooking member 330 is engaged with the engagement hole 326 of the tilt bracket 320 (engagement portion).
- the trim cover 401 is attached to the seat cushion frame 301 by engagement with the seat cushion frame 301.
- FIG. 23A, 23B and 24 show a state in which the hook portion 333 of the hooking member 330 provided at the end of the trim cover 401 is engaged with the engagement hole 326 of the tilt bracket 320.
- the trim cover 401 is omitted for the sake of explanation.
- the trim cover 401 covers the outer side of the side frame 301b in the seat width direction, and the latch member 330 is engaged with the tilt bracket 320 from the lower end side of the side frames 301a and 301b.
- the hook portion 333 of the hooking member 330 is locked in the engagement hole 326 of the tilting bracket 320 so that the extension part 324 of the tilt bracket 320 is positioned in the housing portion 334 of the hooking member 330. In this manner, the attachment of the retaining member 330 to the side frame 301b is performed.
- FIG. 24 is a perspective explanatory view showing a cross section around the hook portion 333 and the engagement hole 326, showing the hook portion 333 engaged with the engagement hole 326.
- the hook portion 333 of the hooking member 330, the extension part 324 of the tilt bracket 320, and the base of the hooking member 330 are sequentially from the outside in the sheet width direction. 331 are arranged.
- the base member 331 (outer arrangement part) is arranged outside the tilt bracket 320 in the sheet width direction, and the hook part 333 (inside arrangement part) is engaged with the tilt bracket 320 of the side frame 301b.
- the hook portion 333 (projecting portion) is disposed on the inner side in the seat width direction of the tilt bracket 320, and the hook portion 333 (projecting portion) protrudes to the side (outside) toward the base portion 331 in the seat width direction.
- the base portion 331 (outer arrangement portion) of the hook member 330 abuts the tilt bracket 320, and the hook portion 333 (inward arrangement portion) is separated from the base portion 331 (outer arrangement portion) in the sheet width direction.
- the position of the hooking member 330 in the sheet width direction is restricted because it abuts on the outer surface portion of the sheet.
- the position of the first side end face 333a of the hook portion 333 in the seat longitudinal direction is the first position of the engagement hole 326.
- the position of the second side end surface 333b of the hook portion 333 in the seat longitudinal direction is restricted by the second end portion 326b of the engagement hole 326.
- the position of the hooking member 330 in the back and forth direction of the seat is restricted to a range where the engagement hole 326 extends. If the load on the seat cushion moves the trim cover, or if the seat can be tilted up, even if the retaining member 330 moves in the direction of disengaging from the seat cushion frame 301, the retaining member is the seat cushion frame It is suppressed that it deviates from 301.
- the length in the seat longitudinal direction of the engagement surface portion 325a of the engagement concave portion 325 recessed inward in the sheet width direction is l (FIG. 25A)
- the length of the base 331 (outer arrangement portion) in the seat longitudinal direction The length L (FIG. 25B) is formed to be longer than the length l of the engagement surface 325a (L> l).
- the base 331 (outer arrangement portion) of the hook member 330 abuts the tilt bracket 320 (side frame), and the hook portion 333 (inside arrangement portion) is separated from the base portion 331 in the sheet width direction.
- the position of the latch member 330 in the sheet width direction is regulated.
- the engagement hole 326 (engagement portion) is disposed outside the side frames 301a and 30b in the seat width direction, the hooking member 330 is inserted into the engagement hole 326. The workability at the time of holding is improved.
- the engagement hole 326 (engagement portion) is provided inside the outer end face of the side frames 301a and 30b in the seat width direction, the operation for the passenger to get on and off is Even when the occupant comes in contact with the outer end surfaces of the side frames 301a and 301b, detachment of the retaining member 330 from the seat cushion frame 301 is suppressed.
- the side frames 301a and 301b include the tilt bracket 320 attached to the side frame main body 310, and the tilt bracket 320 is formed with an engagement hole 326 (engagement portion).
- each member can be easily designed.
- the tilt bracket 320 includes an upper mounting portion 328 extending inward in the seat width direction, and the upper mounting portion 328 is fixed at the flange portion 310a of the side frame main body 310. It is done. Therefore, since the tilt bracket 320 is stably attached to the side frame main body 310, there is an effect that the hooking of the hooking member 330 to the side frames 301a and 301b is stabilized.
- the tilt bracket 320 in which the engagement hole 326 (engagement portion) is formed is fixed to the side frame main body 310 of the side frames 301a and 301b in the seat width direction. There is an effect that the holding of the holding member 330 to the side frames 301a and 301b is stabilized.
- the vehicle seat S300 of the third embodiment can tilt (tilt up) the seat cushion S301, and the tilt bracket 320 is a part of the tilting mechanism that tilts the seat cushion S301.
- the seat cushion S301 is prevented from being detached from the side frames 301a and 301b when the seat cushion S301 is inclined.
- the third invention is not limited to the above embodiment.
- the example of the engagement hole 326 was shown as an example of the engagement part provided in the tilt bracket 320 (side frame) in FIG. 21A, the engagement part is not limited to the form of a hole.
- the engaging portion may be in the form of a groove, a notch, a recess, or the like provided with a regulating surface that regulates the position of the hooking member 330 in the longitudinal direction of the side frame (the seat longitudinal direction).
- FIG. 22A shows an example in which one hook portion 333 (protrusion portion) is provided, the number of the projection portions is not limited to this, and the hook member 330 can be stably locked.
- the number of protrusions may be two or more.
- the engagement hole 326 (engagement portion) is provided on the tilt bracket 320 which is a part of the side frames 301a and 301b
- the position at which the portion is disposed is not limited to this, and the engaging portion may be provided on a member such as the side frame main body 310 which constitutes the side frames 301a and 301b.
- the vehicle seat according to the third embodiment has been described as an example of the vehicle seat mounted on the vehicle.
- the vehicle seat according to the present embodiment is not limited to a vehicle seat, and a seat configured by covering a cushion pad placed on a seat frame with a cover member, in particular, a cover member as a seat frame If it is a seat frame of the seat which adopted the structure to which it latches, there is no restriction in particular about a use.
- the vehicle seat of the present invention can also be used as a seat frame of a vehicle seat used in a vehicle other than a vehicle.
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Abstract
Description
例えば、特許文献1に記載されているように、ハイト装置は、シートクッションと車体フロアとの間に取り付けられ、シート前方側にある一対のフロントリンクと、シート後方側にあるリアリンクとを備えている。そして、リアリンクが駆動リンクとなってシート本体の高さを調整可能としている。
また、特許文献1に記載の発明では、駆動リンクのシート幅方向の外側には、ハイト装置の駆動を操作する操作レバーが取り付けられており、駆動リンクと操作レバーとの間には、ハイト装置の駆動を規制するブレーキユニットが設けられている。
すなわち、上記の乗物用シートによれば、クッションフレームを高さ方向に移動させる際に操作する操作部と、クッションフレームを移動させるためのリンク部材の動きを規制するために要する部品点数を低減できる。
こうすることで、回動作用部の回動範囲と操作部の操作範囲を簡易な構成で規制できる。
こうすることで、第1突出部と第2突出部の剛性を向上できる。また、第1突出部と第2突出部をシート幅方向内側に突出させることで、第1突出部と第2突出部を他の部材と干渉しない位置に配置することができる。
このようにリンク回動規制部材を操作部及び回動作用部から荷重が加わりやすい側に取り付けることで、リンク回動規制部材により操作部の動きをより規制しやすくなる。
こうすることで、第1突出部と第2突出部のうち少なくとも一方がリンク回動規制部材に当接した際の衝撃を吸収できる。これにより、乗員が操作部を操作する際に、操作範囲の限界に達した際に受ける衝撃を緩和できる。
こうすることで、第1突出部と第2突出部がリンク回動規制部材に当接した際の衝撃を簡易な構成により吸収できる。これにより、乗員が操作部を操作する際に、操作範囲の限界に達した際に受ける衝撃をより緩和できる。
こうすることで、クッション材を必要部分に配置することができるため、重量増加を抑制できる。
本発明によれば、回動作用部の回動範囲と操作部の操作範囲を簡易な構成で規制できる。
本発明によれば、第1突出部と第2突出部の剛性を向上できる。
本発明によれば、リンク回動規制部材により操作部の動きをより規制しやすくなる。
本発明によれば、乗員が操作部を操作する際に、操作範囲の限界に達した際に受ける衝撃を緩和できる。
本発明によれば、第1突出部と第2突出部がリンク回動規制部材に当接した際の衝撃を簡易な構成により吸収できる。
本発明によれば、重量増加を抑制できる。
以下、図1乃至図9を参照しながら、本発明の第1実施の形態(以下、本実施形態)に係る車両用シートSについて説明する。
本実施形態では、車両用シートSとして、車両に搭載される車両用シートを例に挙げて説明することとするが、自動車・鉄道など車輪を有する地上走行用乗物に搭載される車両用シートに限定されるものではなく、地上以外を移動する航空機や船舶などに搭載されるシートであってもよい。
また、以下に説明する実施形態は、本発明の理解を容易にするための一例に過ぎず、本発明を限定するものではない。すなわち、以下に説明する部材の形状、寸法、配置等については、本発明の趣旨を逸脱することなく、変更、改良され得るとともに、本発明にはその等価物が含まれることは勿論である。
本実施形態に係る車両用シートSは、図1に図示した外観を有している。なお、図1中、車両用シートSの一部(具体的には、シートクッションS1の前端角部)については、図示の都合上、表皮材1aを外した構成にて図示している。
シートバックS2は不図示のシートバックフレームに不図示のクッション材を載置して、表皮材1aで覆うことで構成されている。
ヘッドレストS3は、不図示の芯材に不図示のクッション材を配して、表皮材1aで被覆して構成されている。
なお、車両用シートSに設けられる表皮材1aは、例えばクロスや革等の素材からなる。
また、クッション材1bは、例えばウレタン発泡材を用いて、発泡成型により成型されたウレタン基材である。
次に、図2を参照しながら、クッションフレーム10の構成について説明する。
図2に示されるように、クッションフレーム10は、上方から見たときに略方形枠状の外形形状をなす。そして、クッションフレーム10は、シート幅方向左右の端部をそれぞれ構成する一対のサイドフレーム11と、クッションフレーム10の前端部を構成するパンフレーム12と、左右のサイドフレーム11を後端部において連結する連結パイプ24(パイプフレーム)と、を主な構成要素とする。
具体的には、サイドフレーム11の後端側には円筒状の端部スリーブ28が形成されている。そして、端部スリーブ28は、連結パイプ24を挿通可能であり、左右のサイドフレーム11の端部スリーブ28の中に連結パイプ24が挿通された状態で、端部スリーブ28と連結パイプ24が溶接されることで、サイドフレーム11と連結パイプ24が接合される。
パンフレーム12は、主として着座者(乗員)の大腿部を支持するためのものであり、その上面がほぼ平坦な略矩形形状に形成された金属製の板材から形成されるフレームである。
本実施形態では、受圧部材25の後方側の端部には係止部材26が取り付けられている。そして、受圧部材25の前端が、パンフレーム12の突起に係止され、受圧部材25の後端に設けられた係止部材26が連結パイプ24に係止されることで、クッションフレーム10の内部に受圧部材25が取り付けられることとなる。
スライドレール機構30は、車体フロアに固定されたロアレール32と、ロアレール32に対して前後にスライドするアッパーレール31とを主な構成要素とする。
アッパーレール31には固定ブラケット33が取り付けられており、固定ブラケット33には、ハイト機構Hのフロントリンク34及び駆動リンク40が取り付けられている。
そのため、アッパーレール31がロアレール32に対してスライドすることにより、アッパーレール31に追従してクッションフレーム10がロアレール32に対して前後にスライドすることとなる。
以下、図2乃至図9を参照しながら、ハイト機構Hの構成について説明する。ハイト機構Hは、スライドレール機構30に対してクッションフレーム10の高さを調整するための機構である。
本実施形態では、ハイト機構Hは、フロントリンク34、駆動リンク40、リンク回動規制部材50、操作部材60及びギア部70を主な構成要素とする。
具体的には、図3及び図4に示されるように、操作部材60は、前方側に配される操作部61と、後方側に配される回動作用部62を備える。
なお、ギア部70は、操作部材60からの入力に対してピニオンギア71を回動させ、それ以外の入力に対してはピニオンギア71の回動を規制するブレーキユニットとして機能する。
図7に示されるように、駆動リンク40は、セクタギア41、開口部42、貫通孔43、及びピボット軸44を有する。
駆動リンク40は、金属製の板部材からなり、クッションフレーム10を構成するサイドフレーム11のうち、シート幅方向外側(本例では左側)のサイドフレーム11に設けられている。
これにより、駆動リンク40の回動に応じて、端部スリーブ28に保持される連結パイプ24も駆動リンク40に従って回動可能となっている。
また、ピボット軸44は、固定ブラケット33に対して固定されており、ピボット軸44は、固定ブラケット33とともにアッパーレール31に従って揺動可能となっている。
このように、駆動リンク40及びフロントリンク34が回動することで、クッションフレーム10が昇降し、これによりクッションフレーム10及び車両用シートSの高さが調整されるようになる。
ここで、図8を参照しながら、駆動リンク40の回動範囲を規制する機構について説明する。
図8に示されるように、ピニオンギア71が回転するとピボット軸44を中心として駆動リンク40が回動することとなる。
例えば、ピニオンギア71が、ピボット軸44を中心として駆動リンク40を下方(反時計回り)に回動させる場合には、開口部42の上端とリンク回動規制部材50が当接すると、それより下方への駆動リンク40の回動が規制される。
同様に、ピニオンギア71が、ピボット軸44を中心として駆動リンク40を上方(時計回り)に回動させる場合には、開口部42の下端とリンク回動規制部材50が当接すると、それより上方への駆動リンク40の回動が規制される。
このように、開口部42にリンク回動規制部材50が通されていることにより、駆動リンク40の回動範囲が規制されることとなる。
次に、操作部61の操作範囲を規制する機構について説明する。具体的には、本実施形態では、操作部61と一体化された回動作用部62の回動範囲を規制することにより、操作部61の操作範囲を規制することとしている。
第1突出部63Aと第2突出部63Bは上下方向に離間しており、第1突出部63Aと第2突出部63Bの間には、クッションフレーム10に固定された柱状のリンク回動規制部材50が配される。
上述したように、リンク回動規制部材50は、駆動リンク40の回動を規制する部材であり、図6及び図7に示されるように、リンク回動規制部材50は、駆動リンク40の開口部42、サイドフレーム11の貫通孔11Aを通じて、シート外側に突出している。
一方で、リンク回動規制部材50のうちサイドフレーム11よりシート幅方向内側にある小径部52に対しては、上方にクッション材1bが設けられていない。
同様に、操作部材60の操作部61が下方に押された場合、すなわち操作部61が回動軸65を中心として下方に回動した場合に、第2突出部63Bがリンク回動規制部材50と当接することで、操作部61の下方への移動が規制される。
こうすることで、操作部61の回動範囲(操作範囲)を図9に示すように一定の範囲に抑えることができる。
具体的には、回動作用部62には、第1突出部63Aにおいて第2突出部63B(又はリンク回動規制部材50)と対向する側とは反対側に第1切欠き部64Aが設けられている。
第1切欠き部64Aが設けられていることで、第1突出部63Aがリンク回動規制部材50に当接した場合に、第1突出部63Aが撓みやすくなり、これにより衝撃吸収性を向上できる。
第2切欠き部64Bが設けられていることで、第2突出部63Bがリンク回動規制部材50に当接した場合に、第2突出部63Bが撓みやすくなり、これにより衝撃吸収性を向上できる。
以上のように、回動作用部62に形成された第1切欠き部64A及び第2切欠き部64Bが衝撃吸収部64として機能する。
これにより、回動作用部62がリンク回動規制部材50に当接した際に乗員の手に伝わる衝撃を緩和することができる。
以上説明した本実施形態に係る車両用シートSは、クッションフレーム10の高さを調整可能な乗物用シートである。車両用シートSは、クッションフレーム10に対して回動可能に取り付けられ、回動に応じてクッションフレーム10を高さ方向に移動させる駆動リンク40(リンク部材の一例)と、駆動リンク40と係合し、駆動リンク40を回動させるギア部70と、駆動リンク40の回動範囲を規制するリンク回動規制部材50と、クッションフレーム10の高さ調整の操作を受け付ける操作部60と、操作部60の操作に応じて、ギア部70を介して駆動リンク40を回動させる回動作用部62と、を備える。リンク回動規制部材50が回動作用部62に当接することで操作部60の動きが規制される。
本実施形態に係る車両用シートSによれば、駆動リンク40の回動範囲を規制するリンク回動規制部材50により操作部60の動きも規制することができる。これにより、操作部60の動きを規制する部材をリンク回動規制部材50と別に設ける場合に比べて、部品点数を低減できる。
すなわち、本実施形態に係る車両用シートSによれば、クッションフレーム10を高さ方向に移動させる際に操作する操作部60と、クッションフレーム10を移動させるための駆動リンク40の動きを規制するために要する部品点数を低減できる。
こうすることで、回動作用部62の回動範囲と操作部60の操作範囲を簡易な構成で規制できる。
こうすることで、第1突出部63Aと第2突出部63Bの剛性を向上できる。また、第1突出部63Aと第2突出部63Bをシート幅方向内側に突出させることで、第1突出部63Aと第2突出部63Bを他の部材と干渉しない位置に配置することができる。
このようにリンク回動規制部材50を操作部60及び回動作用部62から荷重が加わりやすい側に取り付けることで、リンク回動規制部材50により操作部60の動きをより規制しやすくなる。
こうすることで、第1突出部63Aと第2突出部63Bのうち少なくとも一方がリンク回動規制部材50に当接した際の衝撃を吸収できる。これにより、乗員が操作部60を操作する際に、操作範囲の限界に達した際に受ける衝撃を緩和できる。
こうすることで、第1突出部63Aと第2突出部63Bがリンク回動規制部材50に当接した際の衝撃を簡易な構成により吸収できる。これにより、乗員が操作部60を操作する際に、操作範囲の限界に達した際に受ける衝撃をより緩和できる。
こうすることで、クッション材1bを必要部分に配置することができるため、重量増加を抑制できる。
本発明は上記の実施形態に限定されるものではない。
例えば、上記の実施形態では操作部61と回動作用部62とを一部材として一体化したが、操作部61と回動作用部62は別部材として構成してもよい。
また、上記の実施形態では、回動作用部62に対し、第1切欠き部64Aと第2切欠き部64Bの両方を設けることとしたが、一方だけ設けてもよい。
次に、第2実施形態に係る車両用シートついて説明する。第2実施形態に係る車両用シートを説明するにあたり、乗物用シートに関する課題について説明する。
ところで、上記の従来技術に係る発明では、アクチュエータがフレーム部材と接していると、アクチュエータの駆動時の振動がフレーム部材を介して伝わりやすい。ここで、アクチュエータの振動伝達を抑制するための弾性部材の取付性を向上させることが課題となっている。
本発明は、上記の課題に鑑みてなされたものであり、その目的は、アクチュエータからフレーム部材に伝わる振動を低減させるための弾性部材の取付性を向上できる乗物用シートを提供することにある。
また、アクチュエータが弾性部材を介してフレーム部材に取り付けられているため、アクチュエータからフレーム部材に伝わる振動を低減させることができる。
こうすることで、パッドの収納空間内に弾性部材を配置することができる。
こうすることで、フレーム部材からシート幅方向外側にアクチュエータと弾性部材が突出しない。これにより、乗物用シートをシート幅方向にコンパクトに構成できる。
このように、アクチュエータとサイドフレームとの間に弾性部材を設けたことで、サイドフレームへの振動伝達を抑制できる。
こうすることで、アクチュエータがシートの幅方向外側から締結部材によってフレーム部材に締結される際に、弾性部材が傷つくことを抑制できる。
こうすることで、サイドフレームの外側から、アクチュエータのボルトが突出する長さを短くすることができる。これにより、アクチュエータのボルトがシート内部の部材と干渉することを抑制できる。
また、サイドフレームにおいて剛性の高い部分にアクチュエータを取り付けることができるので、サイドフレームの振動を効果的に抑制できる。
こうすることで、エアバッグモジュールの取付部に対して、アクチュエータの振動が伝達されることを抑制できる。これにより、エアバッグの誤作動を防止し、エアバッグを安定して展開させることができる。
このようにサイドフレームにビードを形成したことにより、サイドフレームの剛性を向上させることができる。
こうすることで、下部フレームにアクチュエータを取り付けるための貫通孔を形成する必要がなくなる。そのため、下部フレームの設計自由度を向上できる。また、下部フレームのシート幅方向の長さを短くすることができるため、下部フレームのサイズを小さくすることができる。
こうすることで、受圧部材の第1取付部と第2取付部に、シートバックフレームを介して振動が伝達されてしまうことを抑制できる。
下記の第2実施形態に係る乗物用シートによれば、アクチュエータからフレーム部材に伝わる振動を低減させることができる。
下記の第2実施形態に係る乗物用シートによれば、パッドの収納空間内に弾性部材を配置することができる。
下記の第2実施形態に係る乗物用シートによれば、乗物用シートをシート幅方向にコンパクトに構成できる。
下記の第2実施形態に係る乗物用シートによれば、サイドフレームへの振動伝達を抑制できる。
下記の第2実施形態に係る乗物用シートによれば、アクチュエータがシートの幅方向外側から締結部材によってフレーム部材に締結される際に、弾性部材が傷つくことを抑制できる。
下記の第2実施形態に係る乗物用シートによれば、アクチュエータのボルトがシート内部の部材と干渉することを抑制できる。
下記の第2実施形態に係る乗物用シートによれば、エアバッグの取付部に対して、アクチュエータの振動が伝達されることを抑制できる。
下記の第2実施形態に係る乗物用シートによれば、サイドフレームの剛性を向上させることができる。
下記の第2実施形態に係る乗物用シートによれば、下部フレームのサイズを小さくすることができる。
下記の第2実施形態に係る乗物用シートによれば、受圧部材から乗員に振動が伝達されることを抑制できる。
第2実施形態では、車両用シートS200として、車両に搭載される車両用シートを例に挙げて説明することとするが、自動車・鉄道など車輪を有する地上走行用乗物に搭載される車両用シートに限定されるものではなく、地上以外を移動する航空機や船舶などに搭載されるシートであってもよい。
なお、以下に説明する第2実施形態は、本発明の理解を容易にするための一例に過ぎず、本発明を限定するものではない。すなわち、以下に説明する部材の形状、寸法、配置等については、本発明の趣旨を逸脱することなく、変更、改良され得るとともに、本発明にはその等価物が含まれることは勿論である。
第2実施形態に係る車両用シートS200は、図10に図示した外観を有している。なお、図10中、車両用シートS200の一部(具体的には、シートクッションS202の前端角部)については、図示の都合上、表皮材Rを外した構成にて図示している。
シートクッションS202は、図11に示す骨格となるシートクッションフレーム220にパッドUを載置して、表皮材Rで覆うことで構成されている。
ヘッドレストS203は、不図示の芯材に不図示のクッション材を配して、表皮材Rで被覆して構成されている。
なお、車両用シートS200に設けられる表皮材Rは、例えばクロスや革等の素材からなる。
また、パッドUは、例えばウレタン発泡材を用いて、発泡成型により成型されたウレタン基材である。
次に、図11を参照しながら、車両用シートS200の骨格となるフレーム部材としてのシートフレームFの構成について説明する。
図11に示されるように、シートフレームFは、主にシートバックフレーム210とシートクッションフレーム220とにより構成される。シートバックフレーム210は、シートバックS201の骨格をなし、シートクッションフレーム20は、シートクッションS202の骨格をなす。
また、上部フレーム211の上端には、ヘッドレスト取付部が溶接により取り付けられる。ヘッドレスト取付部は、ヘッドレストS203から垂下する2つのヘッドレストステーが挿通される管状体である。
なお、図示しないリクライニング操作部を操作することによりアクチュエータ250が駆動する。これにより、リクライニング機構235を動作させ、シートクッションS202に対するシートバックS201の角度が調整可能となる。
凹部212Aは、サイドフレーム212の平板部分をシート幅方向内側に凹ませることで形成された箇所である。
なお、ボルト253には、円筒状の取付部251よりも外形が僅かに大きく、中央にボルト253が挿通可能な孔が形成された弾性部材252が取り付けられる。弾性部材252は、取付部251の端部を被覆する状態で取り付けられるキャップ状の部材である。例えば、弾性部材252はゴムにより構成されるものである。
具体的には、図14に示されるように、弾性部材252は、取付部251とサイドフレーム212の間に配される当接部252Aと、当接部252Aに設けられボルト253を通す貫通孔252Bと、当接部252Aからアクチュエータ250に向けて延出し、取付部251の一部を被覆する被覆部252Cを有する。
なお、上記のようにアクチュエータ250の取付部251には、弾性部材252を被せるように取り付けた状態で、アクチュエータ250をサイドフレーム212に取り付けることができる。これにより、弾性部材252がアクチュエータ250から外れにくくなる。また、アクチュエータ250の取付部251に弾性部材252を被せた場合には、弾性部材252の被覆部252Cを様々な角度から目視することが可能となるため、弾性部材252の取り付けを行っているか否かを容易に確認可能となる。
また、アクチュエータ250は、サイドフレーム212に対して直接接触していない。すなわち、アクチュエータ250とサイドフレーム212の間には弾性部材252が配される。換言すれば、弾性部材252のシート幅方向内側の面はアクチュエータ250の取付部251と当接し、弾性部材252のシート幅方向外側の面はサイドフレーム212と当接している。
このようにアクチュエータ250を、弾性部材252を介してサイドフレーム212に取り付けることで、アクチュエータ250の振動がサイドフレーム212に伝わりにくくなる。
具体的には、図11に示されるように、サイドフレーム212の平板部にはエアバッグ取付用孔212D及びエアバッグ取付用孔212Eが形成され、エアバッグ取付用孔212D及びエアバッグ取付用孔212Eにおいてエアバッグモジュール260が取り付けられる。
エアバッグモジュール260はサイドフレーム212に対して以下のように固定されている。スタッドボルト263はインフレータ262からシート幅方向内側に延出している。そして、スタッドボルト263がサイドフレーム212のエアバッグ取付用孔212Dに挿通された状態で、シート幅方向内側からナット265を螺合して締結することにより、エアバッグモジュール260がサイドフレーム212に対して取り付けられる。
換言すれば、サイドフレーム212の凹部212Aの上端である段差部212Bよりもエアバッグモジュール260を取り付けるためのエアバッグ取付用孔212D及びエアバッグ取付用孔212Eは高い位置に形成される。
そして、サイドフレーム212の段差部212Bは、シートフレームFの下端とサイドフレーム212の凹部212Aの間に位置する。すなわち、凹部212Aの上端は、シートフレームFの下端とサイドフレーム212の凹部212Aの間に位置する。
また、エアバッグ取付用孔212D及びエアバッグ取付用孔212Eは、ビード212Fを跨いだ位置に形成されており、これにより、エアバッグモジュール260の取り付け部の強度を向上させている。
ここで、受圧部材215は、乗員の背部を支持し、例えば板バネやSバネ等の弾性部材により構成される。
第1取付部216は、サイドフレーム212に係止される部材である。また、第1取付部216は、受圧部材215よりも上部に設けられる上部フレーム211や上部フレーム211に架設されるクロスメンバに対して係止されてもよい。
第2取付部217は、第1取付部216よりも下方に設けられ、左右のサイドフレーム212を連結する下部フレーム213に係止される部材である。
このように、受圧部材215は、第1取付部216及び第2取付部217によりシートバックフレーム210に固定される。
なお、弾性部材252は、上下方向において第1取付部216と第2取付部217との間に配される。こうすることで、アクチュエータ250の振動が第1取付部216と第2取付部217を通じて受圧部材215に伝わりにくくなる。
図11に示されるように、シートクッションフレーム220は、上方から見たときに方形枠状の外形形状をなす。そして、シートクッションフレーム220は、シート幅方向左右の端部をそれぞれ構成する左右のクッションサイドフレーム221と、左右のクッションサイドフレーム221の前端部を連結するパンフレーム222と、左右のクッションサイドフレーム221の後端部を連結する連結パイプ224とを主たる構成要素とする。例えば、連結パイプ224は、丸パイプ等の中空部材である。
スライド機構230は、車体フロアに固定されたロアレール231と、ロアレール231に対して前後にスライドするアッパーレール232とを主な構成要素とする。
アッパーレール232にはハイト機構240が取り付けられており、アッパーレール232がロアレール231に対してスライドすると、アッパーレール232とともにシートフレームFがロアレール231に対してスライドすることとなる。
第2実施形態に係る車両用シートS200(乗物用シートの一例)は、乗員を支持するパッドUと、パッドUと当接するシートフレームF(フレーム部材の一例)と、シートフレームFに取り付けられるアクチュエータ250と、シートフレームFとアクチュエータ250との間に設けられ、シートフレームFとアクチュエータ250のそれぞれに当接する弾性部材252と、を備え、弾性部材252は、アクチュエータ250に向けて延出し、アクチュエータ250の一部を被覆する被覆部252Cを有する。
また、アクチュエータ250が弾性部材252を介してシートフレームFに取り付けられているため、アクチュエータ250からシートフレームFに伝わる振動を低減させることができる。
こうすることで、パッドUの収容空間280内に弾性部材252を配置することができる。
こうすることで、シートフレームFからシート幅方向外側にアクチュエータ250と弾性部材が突出しない。これにより、車両用シートS200をシート幅方向にコンパクトに構成できる。
このように、アクチュエータ250とサイドフレーム212との間に弾性部材252を設けたことで、サイドフレーム212への振動伝達を抑制できる。
こうすることで、アクチュエータ250がシートの幅方向外側からナット254によってフレーム部材に締結される際に、弾性部材が傷つくことを抑制できる。
こうすることで、サイドフレーム212の外側から、アクチュエータ250のボルト253が突出する長さを短くすることができる。これにより、アクチュエータ250のボルト253がシート内部の部材と干渉することを抑制できる。
また、サイドフレーム212において剛性の高い部分にアクチュエータ250を取り付けることができるので、サイドフレーム212の振動を効果的に抑制できる。
こうすることで、エアバッグモジュール260の取付部に対して、アクチュエータ250の振動が伝達されることを抑制できる。これにより、エアバッグの誤作動を防止し、エアバッグを安定して展開させることができる。
このようにサイドフレーム212にビード212Fを形成したことにより、サイドフレーム212の剛性を向上させることができる。
こうすることで、下部フレーム213にアクチュエータ250を取り付けるための貫通孔を形成する必要がなくなる。そのため、下部フレーム213の設計自由度を向上できる。また、下部フレーム213のシート幅方向の長さを短くすることができるため、下部フレーム213のサイズを小さくすることができる。
こうすることで、受圧部材215の第1取付部216と第2取付部217に、シートバックフレーム210を介して振動が伝達されてしまうことを抑制できる。
本発明は上記の第2実施形態に限定されるものではない。
例えば、上記の第2実施形態ではシートバックフレーム210に取り付けられるアクチュエータ250の取付部251に弾性部材252を設ける例について説明したが、シートクッションフレーム220に取り付けられるアクチュエータ250に対しても弾性部材252を設けることとしてよい。
次に、第3実施形態に係る車両用シートついて説明する。第3実施形態に係る車両用シートを説明するにあたり、乗物用シートに関する課題について説明する。
しかし、上述のような車両用シートにおいては、過大な荷重がシートクッションにかかってトリムカバーが移動した場合や、シートクッションの座面が持ち上がる(チルトアップ)構成である場合には、トリムカバー端末のフックが外れやすいという課題があった。
上記課題は、下記の第3実施形態に係る乗物用シートによれば、シートクッションを備えた乗物用シートであって、前記シートクッションは、クッションフレームと、前記クッションフレームに載置されたパッド部材と、前記パッド部材を覆うトリムカバーと、を備え、前記トリムカバーには、突出部が設けられた掛止め部材が取り付けられており、前記クッションフレームは、シート前後方向に延出する係合部が設けられたサイドフレームを備え、前記サイドフレームの前記係合部に、前記掛止め部材の前記突出部が挿入されて係合することにより解決される。
上記の構成では、突出部がサイドフレームの内側からシート幅方向において外側に突出して係合部に係合するため、掛止め部材がクッションフレームから外れてしまうことが適切に抑制される。
上記の構成では、掛止め部材の外側配置部がサイドフレームに当接し、内側配置部が外側配置部とシート幅方向において離間した位置でサイドフレームの外面部に当接するため、シート幅方向における掛止め部材の位置が規制される。
上記の構成では、掛止め部材の突出部が係合するサイドフレームの係合部がシートクッションの中央よりも前側に配置されることで、乗員(着座者)の乗り降りに伴って掛止め部材がクッションフレームから外れてしまうことが抑制される。
上記の構成では、掛止め部材を係合部に掛止める際の作業性が向上する。
上記の構成では、係合部がサイドフレームの外端面よりも内側に設けられていることで、乗員が乗り降りする動作を行う際に、乗員がサイドフレームの外端面に接触したとしても、掛止め部材がクッションフレームから外れてしまうことが抑制される。
上記の構成では、サイドフレームの本体部とは別の部材に係合部を設けているため、設計し易い。
上記の構成では、係合部が形成されたブラケット部材がサイドフレームの本体部に安定して取り付けられるため、掛止め部材のサイドフレームに対する掛止めが安定する。
上記の構成では、係合部が形成されたブラケット部材がシート幅方向においてサイドフレームの本体部に取り付けられるため、掛止め部材のサイドフレームに対する掛止めが安定する。
上記の構成では、シートクッションを傾斜(チルトアップ)可能な乗物用シートにおいても、シートクッションの傾斜動作時に掛止め部材がクッションフレームから外れてしまうことが抑制される。
下記の第3実施形態に係る乗物用シートによれば、過大な荷重がシートクッションにかかってトリムカバーが移動した場合や、チルトアップ可能なシートの場合に、掛止め部材がクッションフレームから外れる方向に移動したとしても、掛止め部材がクッションフレームから外れてしまうことが抑制される。
また、本発明の乗物用シートによれば、突出部がサイドフレームの内側からシート幅方向において外側に突出して係合部に係合するため、掛止め部材がクッションフレームから外れてしまうことが適切に抑制される。
また、下記の第3実施形態に係る乗物用シートによれば、掛止め部材の外側配置部がサイドフレームに当接し、内側配置部が外側配置部とシート幅方向において離間した位置でサイドフレームの係合面部に当接するため、シート幅方向における掛止め部材の位置が規制される。
また、下記の第3実施形態に係る乗物用シートによれば、掛止め部材の突出部が係合するサイドフレームの係合部がシートクッションの中央よりも前側に配置されることで、乗員(着座者)の乗り降りに伴って掛止め部材がクッションフレームから外れてしまうことが抑制される。
また、下記の第3実施形態に係る乗物用シートによれば、掛止め部材を係合部に掛止める際の作業性が向上する。
また、下記の第3実施形態に係る乗物用シートによれば、係合部がサイドフレームの外端面よりも内側に設けられていることで、乗員が乗り降りする動作を行う際に、乗員がサイドフレームの外端面に接触したとしても、掛止め部材がクッションフレームから外れてしまうことが抑制される。
また、下記の第3実施形態に係る乗物用シートによれば、サイドフレームの本体部とは別の部材に係合部を設けているため、設計し易い。
また、下記の第3実施形態に係る乗物用シートによれば、係合部が形成されたブラケット部材がサイドフレームの本体部に安定して取り付けられるため、掛止め部材のサイドフレームに対する掛止めが安定する。
また、下記の第3実施形態に係る乗物用シートによれば、係合部が形成されたブラケット部材がシート幅方向においてサイドフレームの基部に取り付けられるため、掛止め部材のサイドフレームに対する掛止めが安定する。
また、下記の第3実施形態に係る乗物用シートによれば、シートクッションを傾斜(チルトアップ)可能な乗物用シートにおいても、シートクッションの傾斜動作時に掛止め部材がクッションフレームから外れてしまうことが抑制される。
なお、以下に説明する第3実施形態は、本発明の理解を容易にするための一例に過ぎず、本発明を限定するものではない。すなわち、以下に説明する部材の形状、寸法、配置等については、本発明の趣旨を逸脱することなく、変更、改良され得るとともに、本発明にはその等価物が含まれることは勿論である。
「シート幅方向」とは、車両用シートの横幅方向を意味し、車両用シートの着座者から見たときの左右方向と一致する。
また、「上下方向」とは、車両用シートの高さ方向を意味し、車両用シートを正面から見たときの上下方向と一致している。
「シート内側方向」とは、車両用シートの内側方向(車両用シートの中央に向かう方向)を意味し、「シートフレーム内側方向」とは、シートフレームの内側方向(シートフレームの中央に向かう方向)を意味する。
第3実施形態に係る車両用シートS300は、図18に図示した外観を有している。なお、図1中、車両用シートS300の一部(具体的には、シートクッションS301の前端角部)については、説明の都合上、トリムカバー401を外した構成にて図示している。
クッションパッド400は、ウレタンフォームなどの弾性を有するクッション材からなり、トリムカバー401は、合成皮革や布地などからなり、複数の表皮材が縫製されて形成されている。
まず、図19を参照しながら、第3実施形態に係るシートクッションフレーム301の構成の概要について説明する。シートクッションフレーム301は脚部で支持されており、この脚部には、インナレールが取り付けられ、車体フロアに設置されるアウタレールとの間で、前後方向において位置調整可能なスライド式に組み立てられている。またシートクッションフレーム301の後端部は、不図示のリクライニング機構を介して不図示のシートバックフレームと連結されている。
以下、第3実施形態に係る車両用シートS300のシートクッションフレーム301を構成するサイドフレーム301a,301b及びチルトブラケット320について、図20A乃至21Bを参照しながら説明する。以下、一方のサイドフレーム301bを用いて説明するが、他方のサイドフレーム301aも同様の構成を有している。図20Aは、サイドフレーム301bに取り付けられたチルトブラケット320を示す、シート幅方向の外側から見た斜視図であり、図20Bは、サイドフレーム301bに取り付けられたチルトブラケット320を示す、シート幅方向の内側から見た斜視図である。図21Aは、チルトブラケット320の正面図であり、図21Bは、チルトブラケット320の上面図である。
図22A乃至22Cに、第3実施形態に係る掛止め部材330を示す。図22Aは、トリムカバー401に縫着された掛止め部材330の斜視図であり、図22Bは、図22AのB-B断面図であり、図22Cは、図22AのC-C断面図である。
図23A,23B及び図24に、チルトブラケット320の係合孔326に対して、トリムカバー401の端部に設けられた掛止め部材330のフック部333を係合させた状態を示す。なお、図23A,23B及び図24では、説明のためにトリムカバー401を省略している。
第3発明は上記の実施形態に限定されるものではない。図21Aにおいて、チルトブラケット320(サイドフレーム)に設けられた係合部の例として、係合孔326の例を示したが、係合部は孔の形態に限定されるものではない。例えば、係合部を、サイドフレームの長手方向(シート前後方向)に掛止め部材330の位置を規制する規制面を備える溝、切欠き、凹部などの形態とすることも可能である。
S1 シートクッション
S2 シートバック
S3 ヘッドレスト
1a 表皮材
1b クッション材
10 クッションフレーム
11 サイドフレーム
11A 貫通孔
12 パンフレーム
24 連結パイプ
25 受圧部材
26 係止部材
28 端部スリーブ
30 スライドレール機構
31 アッパーレール
32 ロアレール
33 固定ブラケット
34 フロントリンク
40 駆動リンク(リンク部材)
41 セクタギア
42 開口部
43 貫通孔
44 ピボット軸
50 リンク回動規制部材
51 大径部
52 小径部
53 溶接部
55 固定ブラケット
60 操作部材
61 操作部
62 回動作用部
63A 第1突出部
63B 第2突出部
64 衝撃吸収部
64A 第1切欠き部
64B 第2切欠き部
65 回動軸
66 外周部
68 把持部
70 ギア部
71 ピニオンギア
H ハイト機構
F シートフレーム
S200 車両用シート(乗物用シート)
S201 シートバック
S202 シートクッション
S203 ヘッドレスト
U パッド
R 表皮材
210 シートバックフレーム
211 上部フレーム
212 サイドフレーム
212A 凹部
212B 段差部
212C 貫通孔
212D エアバッグ取付用孔
212E エアバッグ取付用孔
212F ビード
213 下部フレーム
215 受圧部材
216 第1取付部
217 第2取付部
220 シートクッションフレーム
221 クッションサイドフレーム
222 パンフレーム
223 連結ブラケット
224 連結パイプ
225 回動軸
230 スライド機構
231 ロアレール
232 アッパーレール
235 リクライニング機構
240 ハイト機構
250 アクチュエータ
251 取付部
252 弾性部材
252A 当接部
252B 貫通孔
252C 被覆部
253 ボルト
254 ナット(締結部材)
260 エアバッグモジュール
261 エアバッグ
262 インフレータ
263 スタッドボルト
264 リテーナ
265 ナット
270 力布
271 力布取付用クリップ
280 収容空間
S300 車両用シート
S301 シートクッション
S302 シートバック
S303 ヘッドレスト
400 クッションパッド(パッド部材)
401 トリムカバー
301 シートクッションフレーム(クッションフレーム)
301a サイドフレーム
301b サイドフレーム
301c パンフレーム
301d 連結パイプ
310 サイドフレーム本体(本体部)
310a フランジ部
311a 締結部材
311b 締結部材
312 リンク部材
313 締結部材
314 締結部材
320 チルトブラケット(ブラケット部材)
321 基部
322 前方取付部
322a 取付孔
323 後方取付部
323a 取付孔
324 延出部
325 係合凹部
325a 係合面部
326 係合孔(係合部)
326a 第一端部
326b 第二端部
327 バックル取付部
327a バックル取付孔
328 上方取付部
328a 取付孔
328b 取付孔
330 掛止め部材
331 基部(外側配置部)
331a 第一側端面
331b 第二側端面
332 湾曲部
333 フック部(突出部、内側配置部)
333a 第一側端面
333b 第二側端面
334 収容部
Claims (7)
- クッションフレームの高さを調整可能な乗物用シートにおいて、
前記クッションフレームに対して回動可能に取り付けられ、回動に応じて前記クッションフレームを高さ方向に移動させるリンク部材と、
前記リンク部材と係合し、前記リンク部材を回動させるギア部と、
前記リンク部材の回動範囲を規制するリンク回動規制部材と、
前記クッションフレームの高さ調整の操作を受け付ける操作部と、
前記操作部の操作に応じて、前記ギア部を介して前記リンク部材を回動させる回動作用部と、を備え、
前記リンク回動規制部材が前記回動作用部に当接することで前記操作部の動きが規制されることを特徴とする乗物用シート。 - 前記回動作用部は、外周部から突出した第1突出部と第2突出部とを有し、
前記リンク回動規制部材は、前記第1突出部と前記第2突出部の間に配置され、
前記第1突出部と前記第2突出部が前記リンク回動規制部材に当接することで、前記操作部の動きが規制されることを特徴とする請求項1に記載の乗物用シート。 - 前記第1突出部と前記第2突出部はそれぞれ、前記回動作用部の前記外周部からシート幅方向内側に屈曲したフランジであることを特徴とする請求項2に記載の乗物用シート。
- 前記クッションフレームは、側部に配されるサイドフレームを有し、
前記リンク回動規制部材は、前記サイドフレームに設けた貫通孔を通じて、前記サイドフレームからシート幅方向外側に突出し、
前記操作部及び前記回動作用部は、左右の前記サイドフレームのうち、前記リンク回動規制部材が取り付けられる側に取り付けられることを特徴とする請求項1に記載の乗物用シート。 - 前記回動作用部は、前記第1突出部と前記第2突出部のうち少なくとも一方が前記リンク回動規制部材と当接した際の衝撃を吸収するための衝撃吸収部を備えることを特徴とする請求項2に記載の乗物用シート。
- 前記衝撃吸収部は、
前記第1突出部について設けられる、前記第2突出部に対向する側とは反対側に形成される第1切欠き部と、
前記第2突出部について設けられる、前記第1突出部に対向する側とは反対側に形成される第2切欠き部と、を有することを特徴とする請求項5に記載の乗物用シート。 - 前記クッションフレームの内側に配されるクッション材を備え、
前記リンク回動規制部材のうち前記サイドフレームよりもシート幅方向内側の部分は、前記クッション材が上下方向に重なっており、
前記リンク回動規制部材のうち前記サイドフレームよりもシート幅方向外側の部分は、前記クッション材が上下方向に重なっていないことを特徴とする請求項4に記載の乗物用シート。
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DE102018117927B4 (de) * | 2018-07-25 | 2023-06-22 | Keiper Seating Mechanisms Co., Ltd. | Fahrzeugsitz |
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BR112020010496A2 (pt) | 2020-11-10 |
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