JP6513739B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat, and is particularly applicable to a vehicle seat having a seat operation unit on the back of the seat.

  In the vehicle seat, as the seat operation unit, it is possible to adjust the angle between the mechanism (slide mechanism) that enables position adjustment of the seat in the front-rear direction and the seat cushion that forms the seat surface and the seatback that forms the backrest. Mechanism (reclining mechanism).

  Patent Document 1 discloses that a wire cable is provided between an operation lever portion provided on a seat back and a reclining mechanism.

Unexamined-Japanese-Patent No. 2016-145000

  The present inventors examined a vehicle seat having a seat operation unit on the back of the seat back. As a result, it was found that there is a possibility that the attached portion of the sheet operation unit provided on the back of the seat back becomes a noise source.

  An object of the present invention is to provide a vehicle seat capable of preventing generation of noise from a mounting portion of the seat operation unit in a vehicle seat provided with a seat operation unit on the back of the seat back.

  Other problems and novel features will be apparent from the description of the present specification and the accompanying drawings.

  The outline of typical ones of the present invention will be briefly described as follows.

  That is, the vehicle seat has a seat cushion and a seat back. The seat back includes a sheet operation unit provided on a back surface of the seat back, and a mounting frame to which the sheet operation unit is attached. The sheet operation unit is supported by the mounting frame at three points.

  According to the vehicle seat, it is possible to provide a vehicle seat capable of preventing the generation of noise from the attachment portion of the seat operation unit.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view from the left front side of the vehicle seat 1 which concerns on an Example. It is a perspective view from the left back side of seat 1 for vehicles concerning an example. It is a perspective view of the state at the time of non-operation of the operation parts 11 and 12 which concern on an Example. It is a perspective view of the state at the time of operation of the operation parts 11 and 12 which concern on an Example. It is a schematic diagram for demonstrating the structure of the slide function of the sheet | seat 10. FIG. It is a schematic diagram for demonstrating the structure of the reclining function of the sheet | seat 10. As shown in FIG. It is a figure which shows the attachment structure of the attachment frame part. It is the figure which showed the attachment frame part 16 of FIG. 7 transparently. It is a figure which shows the flame | frame with which the attachment frame part 16 is attached. It is a figure which shows the back surface of the attachment frame part 16. As shown in FIG. It is the elements on larger scale of the cross-sectional part at the time of seeing the right direction from line A of FIG. It is the elements on larger scale of the cross-sectional part at the time of seeing the right direction from line B of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  Note that the disclosure is merely an example, and the drawings may be schematically represented as to the width, thickness, shape, etc. of each portion in comparison with the actual embodiment in order to clarify the explanation. It does not limit the interpretation of the present invention. In the specification and the drawings, the same elements as those described above with reference to the drawings already described may be denoted by the same reference numerals, and the detailed description may be appropriately omitted.

  FIG. 1 is a perspective view from the left front side of a vehicle seat 1 according to the embodiment, and FIG. 2 is a perspective view from the left rear side of the vehicle seat 1 according to the embodiment. The vehicle seat 1 is, for example, a passenger seat, but may be another seat (driver's seat, rear seat). The vehicle seat 1 includes a seat 10, an operation unit 11, 12, 13, 14 and two rails 15. The seat 10 includes a seat cushion 101, a seat back 102, a headrest 103, and a seat belt 200. The seat cushion 101 constitutes a seat surface, and the seat back 102 constitutes a backrest. The headrest 103 is disposed above the seatback 102 and supports the head of the seat occupant. The seat belt 200 protects a seated person's body from an impact or the like at the time of a collision of a vehicle. The seat 10 has a slide function that enables position adjustment in the front-rear direction, and a reclining function that enables angle adjustment between the seat cushion 101 and the seat back 102.

  The operation units 11 and 13 are operation units (levers) for slide operation, and receive the slide operation of the seat 10 in the front-rear direction. The slide operation of the sheet 10 can be performed using either of the operation units 11 and 13. The two rails 15 are fixed to the vehicle and act as guides that allow the seat 10 to slide in the front-rear direction.

  The operation units 12 and 14 are operation units (levers) for reclining operation, and receive the reclining operation of the seat 10. The seat 10 can be reclined using either of the operation units 12 and 14.

  The operation units 11 and 12 are disposed side by side on the rear surface side of the seat 10, that is, on the rear surface of the seat back 102, so that any of the operation units 11 and 12 can be operated relatively easily. ing. In this example, the operation parts 11 and 12 are arranged in the width direction of the seat 10 below the headrest 103, and are arranged at a position easy for the user to use. Although not particularly limited, a pocket 104 that can accommodate a magazine or the like is provided at the lower portion on the rear side of the seat back 102, and the operation units 11 and 12 are disposed above the pocket 104. As a result, both the operation parts 11 and 12 and the pocket 104 are disposed at positions easy for the user to use.

  The operation unit 13 is disposed on the front side of the seat 10, which is a lower portion on the front side of the seat cushion 101 in this example, and receives the slide operation independently of the operation unit 11. The operation unit 14 is disposed on the side of the seat 10, that is, on the left side of the seat cushion 101 in this example, and receives the reclining operation independently of the operation unit 12. That is, the user can perform the slide operation using either of the operation units 11 and 13, and can perform the reclining operation using any of the operation units 12 and 14.

  The operation unit 11 is disposed on the back side of the sheet 10, and the operation unit 13 for achieving the same function as the operation unit 11 is disposed on the front side of the sheet 10. Therefore, the user may perform the slide operation using the operation unit 11 or 13 which is easy to use. The operation unit 12 is disposed on the side opposite to the operation unit 14 side for realizing the same function as the operation unit 12 with respect to the operation unit 11. Therefore, the user may perform the reclining operation using the operation unit 12 or 14 which is easy to use.

  Marks are respectively attached to exposed surfaces of the operation units 11 and 12 (specifically, positions where the user can visually recognize the operation units 11 and 12 stored in the accommodation recesses 161 and 162, respectively). As these marks, it is possible for the user to easily distinguish which one of the operation parts 11 and 12 is the slide operation lever or the reclining operation lever.

  FIG. 3 is a perspective view of a state in which the operation units 11 and 12 according to the embodiment are not operated. FIG. 4 is a perspective view of a state in which the operation units 11 and 12 according to the embodiment are operated. A mounting frame 16 is provided on the back side of the seat 10 (the surface on the rear side of the seat back 102), and the operation units 11 and 12 are in the non-operation state (the state not operated by the user) , Is housed in the mounting frame 16. The mounting frame portion 16 is provided with housing concave portions 161 and 162, and the operation portions 11 and 12 are housed in the housing concave portions 161 and 162, respectively, in the non-operation state.

  In this example, the operation unit 11 and the operation unit 12 have different shapes. This allows the user to distinguish which one is for slide operation or reclining operation. The operation unit 11 and the operation unit 12 are levers configured to be coaxially rotatable around an axis X.

  The operation unit 11 can be configured by a lever having an opening 11H into which a finger can be inserted. The user can put the sheet 10 in a slidable state by putting a finger in the opening 11H and rotating the operation unit 11 around the axis X in the direction in which the operation unit 11 is erected from the back surface of the sheet 10. The user can put a finger in the opening 11H to grip the operation unit 11, and in this state, the operation unit 11 can be rotated and erected.

  The operation unit 12 can be configured by a lever having a recess 12H at the lower end portion into which a finger can be inserted. The user can put the seat 10 in a reclining state by putting a finger in the recess 12H and rotating the operation unit 12 around the axis in a direction in which the operation unit 12 stands up from the back surface of the seat 10. Each of the opening 11H and the recess 12H may be provided in a size in which the user's finger can be inserted.

  Further, in the present embodiment, the lengths of the housing recesses 161 and 162 in the direction intersecting with the rotation axis (that is, the vertical direction of the sheet 10) are equal to each other. And the length of the operation parts 11 and 12 in the same direction mutually differs. According to such a structure, the operation units 11 and 12 can be made distinguishable.

  FIG. 5 is a schematic view for explaining the configuration of the slide function of the seat 10. As shown in FIG. FIG. 6 is a schematic view for explaining the configuration of the reclining function of the seat 10.

  The slide function of the seat 10 will be described with reference to FIG. The operation unit 11 is disposed on the back of the sheet 10, and the operation unit 13 is disposed on the front side of the sheet 10. In the seat 10, a slide mechanism 171 capable of sliding on the rail 15 is disposed at the bottom thereof, and a lock release mechanism 172 for locking or unlocking the slide mechanism 171 is incorporated. The operation units 11 and 13 are connected to the lock release mechanism 172 via the wires 11W and 13W, respectively. For example, when the user rotates the operation unit 11, the accompanying tensile force is transmitted to the lock release mechanism 172 via the wire 11W, and the lock of the slide mechanism 171 is released. Thereby, the slide mechanism 171 can slide along the rail 15 in the direction of the arrow in the drawing. Then, when the user returns the operation unit 11 to the original state (when accommodated in the accommodation recess 161), the slide mechanism 171 is locked again. The same applies to the case where the user operates the operation unit 13.

  The reclining function of the seat 10 will be described with reference to FIG. The operation unit 12 is disposed on the back of the sheet 10, and the operation unit 14 is disposed on the side of the sheet 10. The seat 10 incorporates a reclining mechanism 181 and an unlocking mechanism 182 that locks or unlocks the reclining mechanism 181. The operation units 12 and 14 are connected to the unlocking mechanism 182 via the wires 12W and 14W, respectively. For example, when the user rotates the operation unit 12, the accompanying tensile force is transmitted to the lock release mechanism 182 via the wire 12W, and the lock of the reclining mechanism 181 is released. As a result, the seat back 102 of the seat 10 can rotate in the direction of the arrow in the figure. Then, when the user returns the operation unit 12 to the original state (when accommodated in the housing recess 162), the reclining mechanism 181 is locked again. The same applies to the case where the user operates the operation unit 14. In addition, the structure of a slide function and a reclining function can employ | adopt the electrically-driven structure using a mechanical structure, a motor, etc. FIG.

  Hereinafter, the attachment configuration of the attachment frame 16 will be described using the drawings.

  FIG. 7 is a view showing a mounting configuration of the mounting frame portion 16. The mounting frame 16 into which the operation units 11 and 12 are incorporated is fixed to a mounting frame 300 (hereinafter also referred to as a frame) made of a metal material such as iron. The mounting frame 300 can also be referred to as a mounting member or mounting plate. The frame 300 is fixed to a seat back frame (not shown) provided in the seat back 102 or a pipe constituting the seat back frame. The attachment frame portion 16 has a wire fixing portion 16WF1 into which the fixing portion 11WF of the wire 11W is fitted, and a wire fixing portion 16WF2 into which the fixing portion 12WF of the wire 12W is fitted. The wire fixing portion 16WF1 and the wire fixing portion 16WF2 are arranged side by side in the lateral direction substantially at the center of the upper portion of the mounting frame portion 16 in the drawing. In this specification, the entire attachment frame 16 in which the operation units 11 and 12 are incorporated is referred to as a sheet operation unit (11, 12, 16).

  Further, the wire 11W and the wire 12W are fixed to the frame 300 by the wire fixing portion 300WF. In this example, the wire fixing portion 16WF1 and the wire fixing portion 16WF2 are provided so as to protrude from the outer periphery of the square of the mounting frame portion 16 in a front view. The protruding length (protruding amount) of the mounting frame portion 16 from the outer periphery of the square is such that the protruding length d1 of the wire fixing portion 16WF1 is longer than the protruding length d2 of the wire fixing portion 16WF2 (d1> d2) There is. This is because the protruding length d1 of the wire fixing portion 16WF1 and the protruding length d2 of the wire fixing portion 16WF2 are adjusted according to the distance from the wire fixing portion 300WF. That is, the protruding length d2 of the wire fixing portion 16WF2 is relatively short as compared to the wire fixing portion 16WF1 in the distance from the wire fixing portion 300WF. The protruding length d1 of the wire fixing portion 16WF1 having a relatively long distance from the wire fixing portion 300WF compared to the wire fixing portion 16WF2 is made longer than d2. As a result, the wire length of the wire 11W between the fixing portion 11WF and the wire fixing portion 300WF and the wire length of the wire 12W between the fixing portion 12WF and the wire fixing portion 300WF can be made substantially the same. Therefore, it is possible to make the bending directions (curvature) of the wire 11W and the wire 12W substantially the same.

  FIG. 8 is a transparent view of the mounting frame 16 of FIG. In FIG. 8, the mounting frame 16 is supported by the frame 300 at three points. In other words, the sheet operating unit (11, 12, 16) is supported by the frame 300 at three points. The area where the mounting frame 16 and the frame 300 are fixed is the area of the mounting frame 16 at three points of the first fixing part (fixing area) 16FS, the second fixing part 16FP1, and the third fixing part 16FP2. It is considered to be almost triangular when connecting these three points. That is, these three points correspond to the vertices of a triangle. As a result, even if the vibration generated during traveling of the vehicle is transmitted to the mounting frame 16, it is supported at three points, so that the generation of noise due to the mounting frame 16 can be prevented. In this example, the first fixing portion 16FS is supported by the frame 300 in contact with the surface. On the other hand, the second fixing portion 16FP1 and the third fixing portion 16FP2 are fixed to the frame 300 by fixing members such as screws. In this example, the wire fixing portions 16WF1 and 16WF2 are provided in the area portion of the first fixing portion (fixing area) 16FS. Since the wire fixing portions 16WF1 and 16WF2 are provided in the first fixing portion (fixing area) 16FS, as shown in FIG. 4, even if the levers constituting the operation portions 11 and 12 are operated with the axis X as the rotation center The positions of the wire fixing portion 16WF1 and the wire fixing portion 16WF2 and the axis X of the rotation centers of the operation portions 11 and 12 are reliably fixed.

  FIG. 9 is a view showing a frame to which the mounting frame 16 is attached. In FIG. 9, the frame 300 is a second fixing portion corresponding to a first fixing portion (fixing area) 300FS in contact with the first fixing portion 16FS of the mounting frame 16, a second fixing portion 16FP1, and a third fixing portion 16FP2. And 300FP1 and a third fixed portion 300FP2. Openings (round holes) for screwing are provided in portions corresponding to the second fixing portion 300FP1 and the third fixing portion 300FP2. On the other hand, the region corresponding to the first fixed portion 300 FS of the frame 300 or the vicinity of the region has a curved shape, a bent shape or a raised shape (bead structure) in order to further increase the rigidity of the metal frame 300. . With this configuration, the rigidity of the first fixed portion (fixed region) 300FS is increased. Therefore, as shown in FIG. 4, the levers constituting the operation portions 11 and 12 are operated with the axis X as the rotation center. Also, the positions of the wire fixing portion 16WF1 and the wire fixing portion 16WF2 and the axis X of the rotation centers of the operation portions 11 and 12 are securely fixed. Thereby, the operation of the operation parts 11 and 12 is reliably transmitted to the wire 11W and the wire 12W.

FIG. 10 is a view showing the back surface of the mounting frame 16. In FIG. 10, the first fixing portion 16FS of the mounting frame 16 contacts and presses the first fixing portion 300FS of the frame 300. In order to widen the contact area with the first fixing portion 300FS, as described in FIG. 7, the wire fixing portion 16WF1 and the wire fixing portion 16WF2 have different projection lengths (d1 from the outer periphery of the square of the mounting frame 16). Provided so as to be> d2). 10, the first fixed portion 16FS surrounded by a dotted line, the first surface S1 of the left wire fixing portion 16WF 2, the second surface S2 between the wire fixing portion 16WF1 wire fixing portion 16WF2 and, the wire It is constituted by the third surface S3 of the right fixing portion 16WF 1. These surfaces (S1, S2, S3) are formed by the frame thickness or thickness of the frame portion of the resin material for forming or forming the wire fixing portion 16WF1 and the wire fixing portion 16WF2. With this configuration, the contact area between the first fixing portion 16FS of the mounting frame 16 and the first fixing portion 300FS is increased. Therefore, in the mounting frame portion 16 formed of a resin material, the load applied to the first fixing portion 16FS, that is, the force applied when the operation portions 11 and 12 are rotated, is supported with a relatively wide contact area It can. Thereby, it is possible to prevent destruction of the frame part of the resin material which comprises wire fixing | fixed part 16WF1 and 16WF2.

  The protruding lengths (protruding amounts) of the wire fixing portion 16WF1 and the wire fixing portion 16WF2 from the outer periphery of the quadrangle of the mounting frame 16 may be the same (d1 = d2).

  FIG. 11 shows a partially enlarged view of a cross-sectional portion as viewed from line A in FIG. 7 to the right. FIG. 12 shows a partially enlarged view of a cross-sectional portion as viewed from line B in FIG. 7 to the right.

  As shown in FIG. 11, the third surface S3 on the left side of the wire fixing portion 16WF1 provided in the mounting frame 16 is fixed to the first fixing portion 300FS of the frame 300 so as to be in surface contact. The operation unit 11 has a wire tip fixing portion 11WFP constituted by an opening, and the tip portion 11WT of the wire 11W is fitted into the wire tip fixing portion 11WFP. When the operation unit 11 is operated, it rotates in the rotation direction RD1 about the rotation center 11RC (axis X). As a result, the tip end 11WT of the wire 11W moves in the stroke direction SD1, and the resulting tensile force is transmitted to the unlocking mechanism 172 described in FIG. 5 via the wire 11W.

  The wire fixing portion 16WF1 provided in the mounting frame portion 16 is fixed to the first fixing portion 300FS of the frame 300, and as described in FIG. 8, the second fixing portion 16FP1 of the mounting frame portion 16 and the The three fixing portions 16FP2 are fixed to the frame 300 by screws or the like. Therefore, the operation unit 11 does not move its position by operation. Thereby, the tensile force by operation of the operation part 11 can be effectively transmitted to the wire 11W.

  As shown in FIG. 12, the second surface S2 on the left side of the wire fixing portion 16WF2 provided in the mounting frame 16 is fixed to the first fixing portion 300FS of the frame 300 so as to be in surface contact. Although not directly illustrated in FIG. 12, the operation unit 12 has, like the operation unit 11, a wire tip fixing portion 12 WFP configured from an opening, and the tip 12 WT of the wire 12 W is a wire tip It is inserted in fixed part 12WFP. When the operation unit 12 is operated, it rotates in the rotation direction RD2 about the rotation center 12RC (axis X). As a result, the tip end 12WT of the wire 12W moves in the stroke direction SD2, and the accompanying tensile force is transmitted to the unlocking mechanism 182 described in FIG. 6 via the wire 12W.

  The wire fixing portion 16WF2 provided in the mounting frame portion 16 is fixed to the first fixing portion 300FS of the frame 300, and as described in FIG. 8, the second fixing portion 16FP1 of the mounting frame portion 16 and the The three fixing portions 16FP2 are fixed to the frame 300 by screws or the like. Therefore, the operation unit 12 does not move its position by operation. Thereby, the tensile force by operation of the operation part 12 can be effectively transmitted to the wire 12W.

  Although the invention made by the inventor has been specifically described above based on the embodiments, it is needless to say that the present invention is not limited to the above embodiments and can be variously modified.

1: Vehicle seat 10: Seats 11, 12, 13, 14: Operation unit 11W: Wire 12W: Wire 15: Rail 101: Seat cushion 102: Seat back 16: Mounting frame portion 16FS: First fixing portion (fixed area)
16FP1: second fixing portion 16FP2: third fixing portion 300: mounting frame 300FS: first fixing portion (fixed area)
300FP1: second fixed portion 300FP2: third fixed portion

Claims (4)

It has a seat cushion and a seat back,
The seat back is
A sheet operation unit provided on the back of the seat back;
And a mounting frame to which the sheet operation unit is attached,
The seat operating unit, the mounting frame is supported at three points,
The sheet operation unit is
Operation lever,
And a mounting frame to which the control lever is attached;
The mounting frame portion includes a first fixing portion, a second fixing portion, and a third fixing portion.
The first fixing portion is supported by being in contact with the mounting frame at the surface,
The second fixing portion and the third fixing portion are fixed by the mounting frame and a fixing member,
The control lever is
A first lever connected to the unlocking mechanism of the sliding mechanism via a first wire;
And a second lever connected to the lock release mechanism of the reclining mechanism via a second wire,
The mounting frame portion is made of a resin material,
A first wire fixing portion to which the first wire is fixed;
And a second wire fixing portion to which the second wire is fixed;
The first fixing portion includes a first surface configured by the second wire fixing portion, a second surface provided between the first wire fixing portion and the second wire fixing portion, and the first surface. What is claimed is: 1. A vehicle seat comprising: a component portion of a third surface configured by a wire fixing portion . In the vehicle seat according to claim 1 ,
The vehicle seat, wherein the first wire fixing portion and the second wire fixing portion are disposed side by side in an upper portion of the attachment frame portion. In the vehicle seat according to claim 2 ,
The first wire fixing portion and the second wire fixing portion are provided so as to protrude from the outer periphery of the mounting frame portion at a portion above the mounting frame portion,
The amount of protrusion of the first wire fixing portion from the outer periphery of the mounting frame portion is longer than the amount of protrusion of the second wire fixing portion from the outer periphery of the mounting frame portion,
The first wire fixing unit is disposed on the left side of the second wire fixing unit.
The mounting frame has a wire fixing portion disposed on the right side of the mounting frame portion,
A vehicle seat, wherein the first wire and the second wire are fixed to a wire fixing portion of the mounting frame . In the vehicle seat according to claim 1 ,
A vehicle seat, wherein the area of the mounting frame in contact with the first fixing portion or the vicinity thereof has a raised shape.

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