JP5546976B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat provided on a vehicle such as a vehicle.

  A conventional vehicle seat includes a seat cushion, a seat back that can be adjusted with respect to the seat cushion, a protruding member that protrudes outward in the seat width direction from the frame of the seat back, and the seat back with respect to the seat cushion. And a moving member that is pushed by the projecting member and rotated with respect to the seat cushion by rotating forward, and a locking mechanism for the slide device that is connected to the moving member by a cable.

  Therefore, when the seat back is rotated forward, the moving member is rotated by the protruding member, and the moving member pulls the cable. The lock mechanism of the slide device is unlocked by the cable, and the seat can move relative to the floor surface by the slide device. Therefore, the user can easily get on and off the rear row seat disposed behind the seat by rotating the seat back forward and moving the seat forward.

Japanese Patent Laid-Open No. 2006-2119040

  However, when the seat back is rotated forward, there is a demand for adding value to the protruding member and the moving member that can interfere with each other and operate other devices.

In order to solve the above-mentioned problems, the present invention is a vehicle seat having a configuration as described in each claim. According to one aspect, a vehicle seat of the present invention includes a seat cushion, a seat back that is attached to the seat cushion so as to be adjustable in angle, a protruding member that protrudes outward in the seat width direction from a frame of the seat back, and a seat There is a moving member that moves with respect to the seat cushion by being pushed forward by rotating the back with respect to the seat cushion, and a driven device that is connected to the moving member and can be operated by the moving member. The protruding member has an attachment portion attached to the frame, a first extension portion extending from the attachment portion, and a second extension portion extending outward in the seat width direction from the first extension portion. The moving member has a force receiving portion that can be pushed by the protruding member and a cover portion that covers the outer side of the protruding member in the sheet width direction. The cover part has a cover part that covers the second extension part from the outside in the sheet width direction, and a tip part that extends from the cover part toward the first extension part and is arranged in parallel with the second extension part.

  Therefore, by rotating the seat back forward with respect to the seat cushion, the protruding member can push the moving member, and the moving member can operate the driven device. The moving member has a cover that covers the protruding member from the outside in the sheet width direction. Therefore, when the vehicle receives a force from the side, the seat receives a force from the outside in the seat width direction. When the moving member receives the force, the cover portion of the moving member hits the protruding member. Thus, the force applied to the seat is transmitted to the frame of the seat back through the cover portion of the moving member and the protruding member (first path), and can be received by the frame. Thus, the force applied to the seat is distributed to the frame by the moving member and the projecting member, thereby increasing the force that can be received by the frame.

It is a side view of a vehicle floor and a plurality of seats. FIG. 2 is a partial cross-sectional arrow view of the sheet taken along line II-II in FIG. 1. It is a partially exploded perspective view of a seat back. It is a side view of an interlocking device. It is a partial perspective view of an interlocking device. It is a perspective view of a shield and an intermediate member.

  One embodiment of the present invention will be described with reference to FIGS. The vehicle is a vehicle as shown in FIG. 1, and includes a floor surface 20, a first row of seats 21, a second row of seats 1, and a third row of seats 22 mounted on the floor surface 20. Have. The seat 1 in the second row includes a seat cushion 2, a seat back 3, and a slide device 10.

  As shown in FIG. 1, the slide device 10 includes a lower rail 10a attached to the floor surface 20, an upper rail 10b movably attached to the lower rail 10a, and a lock mechanism 10c that releasably locks the upper rail 10b to the lower rail 10a. The seat cushion 2 is mounted on the upper rail 10b. A reclining device 4 for attaching the seat back 3 to the seat cushion 2 so that the angle can be adjusted is provided on the lower left and right portions of the seat back 3.

  As shown in FIGS. 2 and 3, the reclining device 4 locks the first member 4 a, the second member 4 b that is rotatably stacked on the first member 4 a, and the first member 4 a and the second member 4 b so as to be releasable. It has a lock mechanism 4c. The lock mechanism 4 c is operated by rotating the pin 8 inserted into the reclining device 4. The pin 8 is provided with a biasing member 4d that can bias the lock mechanism 4c in the locking direction. The first member 4 a is attached to the arm 16, and the arm 16 is attached to the frame of the seat cushion 2. The second member 4 b is attached to a frame (side frame) 3 a of the seat back 3.

  As shown in FIG. 3, the seat back 3 includes a pair of frames 3a, a cylindrical upper frame 3b that connects the upper portions of the frames 3a, a plate-shaped reinforcing member 3d that connects the upper portions of the frames 3a, and the frame 3a. It has a plate-like lower frame 3c that connects the lower portions. A reclining device 4 is provided below the frame 3a. A connecting member 15 and a pair of pins 8 are provided between the pair of reclining devices 4 to connect them.

  As shown in FIGS. 2 and 3, the connecting member 15 has a cylindrical shape and extends on the rotation center line of the seat back 3 with respect to the seat cushion 2. Pins 8 are attached to both ends of the connecting member 15. The pin 8 integrally includes an insertion portion 8a, a flange portion 8b, and a through portion 8c. The insertion portion 8a is inserted into the connecting member 15 and is attached to the connecting member 15 so as not to be rotatable. The flange portion 8 b protrudes in the radial direction from the insertion portion 8 a and protrudes from the end portion of the connecting member 15. Accordingly, the pin 8 is restricted from moving in the axial direction with respect to the connecting member 15.

  As shown in FIGS. 2 and 3, the penetrating part 8 c extends from the flange part 8 b to the outside in the sheet width direction. The penetration part 8c penetrates the frame 3a and protrudes from the frame 3a. A release lever 17 is attached to the through portion 8c of one pin 8 so as not to rotate. The operation lever 11 is mounted on the penetrating portion 8c of the other pin 8 in a non-rotatable manner. The penetrating portion 8c is formed with a leading end portion 8d extending outward in the sheet width direction, and the moving member 7 constituting the interlocking device 5 is attached to the leading end portion 8d.

  The interlocking device 5 is a device that operates a lock mechanism (driven device) 10c of the slide device 10 when the seat back 3 is rotated forward with respect to the seat cushion 2 as shown in FIG. The interlocking device 5 has a protruding member 6 and a moving member 7 as shown in FIGS. The protruding member 6 integrally includes an attachment portion 6a, a first extension portion 6b, and a second extension portion 6c. The attachment portion 6 a is attached to the outer surface of the frame 3 a of the seat back 3. The first extending portion 6b extends outward from the attachment portion 6a in the sheet width direction. The second extending portion 6 c extends from the first extending portion 6 b to the outside in the seat width direction and toward the reclining device 4.

  As shown in FIGS. 2 and 3, one end of the urging member 9 is locked to the second extending portion 6 c of the protruding member 6. The urging member 9 is a spring that urges the seat back 3 forward with respect to the seat cushion 2 and has a spiral shape. The urging member 9 is arranged in parallel with the reclining device 4 and is installed around the pin 8. The other end of the biasing member 9 is locked to the arm 16.

  2 and 4, the moving member 7 includes a mounting portion 7a attached to the pin 8, a main body portion 7b extending from the mounting portion 7a in the first direction (upward), and a second direction from the mounting portion 7a ( It has an arm portion 7e extending downward). The attachment portion 7 a has a hole inserted through the tip portion 8 d of the pin 8 and is attached to the pin 8 so as to be rotatable. An attachment ring 18 that prevents the attachment portion 7 a from falling off the pin 8 is attached to the tip portion 8 d of the pin 8. The diameter of the hole of the attachment portion 7 a is smaller than the through portion 8 c of the pin 8. Therefore, the movement of the attachment portion 7a toward the center in the sheet width direction with respect to the pin 8 is restricted by the step 8e formed at the through portion 8c and the tip portion 8d.

  As shown in FIGS. 4 and 5, a force receiving portion 7c and a cover portion 7d are formed at the leading edge of the main body portion 7b. The force receiving portion 7 c extends in the first direction from the first side portion (front portion) of the main body portion 7 b and is arranged in parallel with the protruding member 6. The cover portion 7d integrally includes an upright portion 7d1, a cover portion 7d2, and a tip portion 7d3. The standing portion 7d1 rises in the thickness direction from the second side portion (rear portion) of the main body portion 7b and extends outward in the sheet width direction.

  As shown in FIGS. 4 and 5, the cover portion 7d2 extends in the first direction from the tip portion of the standing portion 7d1. The cover portion 7d2 covers the second extending portion 6c of the protruding member 6 from the outside in the sheet width direction and overlaps in the sheet width direction. The cover portion 7d2 extends in an arc shape and is longer than the end edge length of the second extension portion 6c. The front end portion 7d3 extends from the front end of the cover portion 7d2 toward the center side in the sheet width direction, and is arranged in parallel with the second extension portion 6c. The distal end portion of the second extending portion 6c is located between the distal end portion 7d3 and the standing portion 7d1, and can move along the distal end portion 7d3 and the standing portion 7d1.

  As shown in FIGS. 1 and 4, the first end of the cable 24 is connected to the end of the arm 7 e of the moving member 7. The second end of the cable 24 is connected to the lock mechanism 10 c of the slide device 10. The moving member 7 rotates to pull the cable 24, and the cable 24 operates the lock mechanism 10c. The lock mechanism 10c unlocks the upper rail 10b with respect to the lower rail 10a, so that the upper rail 10b can move with respect to the lower rail 10a.

  As shown in FIGS. 1 and 2, shields 13 are attached to both side surfaces of the sheet 1. The shield 13 is made of resin and integrally includes a main body portion 13a and an outer peripheral portion 13b. The main body 13a covers the lower side surface of the seat cushion 2 and the reclining device 4 from the side. The outer peripheral part 13 b is formed on the outer peripheral edge of the main body part 13 a and covers the outer peripheral edge of the reclining device 4. An intermediate member 14 is installed between the main body 13 a and the moving member 7.

  As shown in FIGS. 2 and 6, the intermediate member 14 integrally includes a plate portion 14 a and a plurality of standing portions 14 b. The plate portion 14a is attached to the main body portion 13a of the shield 13 by screws. The plate portion 14 a is provided in parallel with the main body portion 13 a of the shield 13 and the moving member 7, and is close to the tip portion 8 d of the pin 8. The standing portion 14 b rises with respect to the plate portion 14 a and abuts or approaches the main body portion 13 a of the shield 13. The upright portion 14b has a honeycomb shape and is not easily crushed.

  An operation lever 12 is attached to the upper portion of the seat back 3 so as to be tiltable as shown in FIG. The operation lever 12 is tilted with respect to the seat back 3 to pull the cable 23. As shown in FIG. 2, when the release lever 17 is pulled by the cable 23, the release lever 17 rotates with the pin 8 around the pin 8. The pin 8 rotates together with the connecting member 15 and the other pins 8. Each pin 8 rotates the shaft to unlock the lock mechanism 4c of the reclining device 4. As a result, the seat back 3 can rotate with respect to the seat cushion 2. The seat back 3 is urged by the urging member 9 and rotates forward with respect to the seat cushion 2.

  When the seat back 3 rotates forward with respect to the seat cushion 2, the projecting member 6 hits the force receiving portion 7c of the moving member 7 and pushes the force receiving portion 7c as shown in FIG. The moving member 7 rotates around the attachment portion 7a and pulls the cable 24. As shown in FIG. 1, the cable 24 operates the lock mechanism 10 c of the slide device 10 to allow the upper rail 10 b to slide relative to the lower rail 10 a.

  Next, the seat cushion 2 is moved forward with respect to the floor surface 20 by the slide device 10 as shown in FIG. When the upper rail 10b of the slide device 10 reaches the front end of the lower rail 10a, the lock mechanism 10c locks the upper rail 10b with respect to the lower rail 10a. The forward tilt of the seat back 3 is regulated by a regulating device (not shown) and held at a forward tilt angle indicated by a virtual line (for example, 10 to 45 ° with respect to the vertical line). Therefore, the user can easily get on and off the seat 22 in the third row by holding the seat back 3 at the forward tilt angle and moving the seat cushion 2 forward.

  An operation lever 11 is provided on the side of the seat cushion 2 as shown in FIGS. When the tip of the operation lever 11 is lifted, the operation lever 11 rotates with the pin 8 around the pin 8. The pin 8 rotates together with the connecting member 15 and the other pins 8. As each pin 8 rotates, the locking mechanism 4c of the reclining device 4 is operated, so that the seat back 3 can rotate with respect to the seat cushion 2. Thereby, the angle of the seat back 3 can be adjusted with respect to the seat cushion 2.

  When the vehicle receives a force such as an impact from the side, a pillar or a door of the vehicle body moves toward the seat 1 and applies a force F to the seat 1. The force F is applied to the moving member 7 through the shield 13 and the intermediate member 14. A force F applied to the moving member 7 is transmitted to the frame 3a through a first path and a second path described later. In the first path, the cover portion 7 d of the moving member 7 hits the protruding member 6 by the force F. The force F is transmitted to the frame 3a through the cover portion 7d and the protruding member 6.

  In the second path, the attachment portion 7 a of the moving member 7 is restricted by the pin 8 by the force F as shown in FIG. The pin 8 is restricted from moving with respect to the frame 3 a via the reclining device 4. Alternatively, the vehicle component provided on the vehicle body adjacent to the seat 1 via the connecting member 15 and the other pin 8 and the reclining device 4 with respect to the movement of the frame 3a or via the connecting member 15 and the other pin 8. Is restricted. Therefore, the force F is transmitted to the frame 3a or the vehicle parts via the mounting portion 7a of the moving member 7 and the pin 8. Thus, the force F is transmitted to the frame 3a and the like through the first path and the second path.

  As described above, the seat 1 includes the seat cushion 2, the seat back 3 attached to the seat cushion 2 so as to be adjustable in angle, and the frame 3a of the seat back 3 on the outer side in the seat width direction as shown in FIGS. A projecting member 6 projecting toward the seat, a moving member 7 that is pushed by the projecting member 6 by rotating the seat back 3 forward relative to the seat cushion 2, and is coupled to the moving member 7. And a driven device (lock mechanism 10c) that can be operated by the moving member 7. The moving member 7 includes a force receiving portion 7c that can be pushed by the protruding member 6 and a cover portion 7d that covers the outer side of the protruding member 6 in the sheet width direction.

  Therefore, by rotating the seat back 3 forward with respect to the seat cushion 2, the protruding member 6 can push the moving member 7, and the moving member 7 can operate the driven device (lock mechanism 10c). The moving member 7 has a cover portion 7d that covers the protruding member 6 from the outside in the sheet width direction. Therefore, when the vehicle receives a force from the side, the seat 1 receives the force F from the outside in the sheet width direction. When the moving member 7 receives the force F, the cover portion 7 d of the moving member 7 hits the protruding member 6. Thus, the force applied to the seat 1 is transmitted to the frame 3a of the seat back 3 through the cover portion 7d of the moving member 7 and the protruding member 6 (first path), and can be received by the frame 3a. Thus, the force F applied to the seat 1 is dispersed with respect to the frame 3a by the moving member 7 and the protruding member 6, thereby increasing the force that can be received by the frame 3a.

  As shown in FIG. 2, the seat 1 protrudes outward in the seat width direction from the frame 3a on the rotation center line of the seat back 3 with respect to the seat cushion 2, and the pin 8 is restricted from moving in the seat width direction with respect to the frame 3a. Have The moving member 7 is rotatably attached to the pin 8 and is restricted from moving in the sheet width direction with respect to the pin 8.

  Therefore, when the moving member 7 receives the force F from the outside in the sheet width direction, the movement of the moving member 7 in the sheet width direction is restricted by the pins 8. The pin 8 is restricted from moving in the seat width direction with respect to the frame 3 a of the seat back 3. Therefore, the force F from the outside in the seat width direction can be transmitted to the frame 3a of the seat back 3 via the moving member 7 and the pin 8 (second path).

  As shown in FIGS. 2 and 4, a biasing member 9 that biases the seat back 3 forward against the seat cushion 2 is provided around the pin 8. The pin 8 has a tip 8d that protrudes outward in the sheet width direction from the biasing member 9. The moving member 7 includes an attachment portion 7a attached to the tip portion 8d of the pin 8, and extends from the attachment portion 7a on the outer side in the sheet width direction than the urging member 9, and includes a force receiving portion 7c and a cover portion 7d at the ends. It has the main-body part 7b provided.

  Therefore, the seat back 3 can be rotated forward by the biasing member 9. Since the moving member 7 has the main body portion 7b positioned on the outer side in the sheet width direction than the urging member 9, the moving member 7 is more susceptible to a force from the outer side in the sheet width direction than the urging member 9.

(Other embodiments)
The present invention is not limited to the above-described embodiment, and may be the following form. For example, in another embodiment, the moving member 7 may be slidably attached to the pin 8 and may slide with respect to the pin 8 by being pushed by the protruding member 6. Alternatively, the moving member 7 may be attached to the arm 16 or the frame of the seat cushion 2 so as to be rotatable or slidable.

  In another embodiment, the seat 1 is a driven device connected to the moving member 7 and is capable of regulating / releasing the forward rotation of the seat back 3 relative to the seat cushion 2 at a forward tilt angle indicated by an imaginary line in FIG. You may have a device. The regulating device includes a first member that is connected to the moving member 7 and that is movable with respect to the seat cushion, and a stopper member that is provided on the first member. The stopper member is releasably engaged with the seat cushion as the first member moves relative to the seat cushion, and by engaging, the forward rotation of the seat cushion is regulated at a forward tilt angle. The seat cushion is allowed to rotate forward by being released.

  In another embodiment, the moving member 7 has a cover part 7d extending from the main body part 7b and a force receiving part extending from the end of the cover part 7d and adjacent to the protruding member 6, and the force receiving part is a protruding member. The structure which can be pushed by 6 may be sufficient. In another form, the pin 8 may be formed integrally with the connecting member 15. In other forms, the sheets 1, 2, 22 may be mounted on a ship or an aircraft.

1, 2, 22 ... seat 2 ... seat cushion 3 ... seat back 3a ... frame 4 ... reclining device 5 ... interlocking device 6 ... projecting member 7 ... moving member 7a ... mounting portion 7b ... main body portion 7c ... force receiving portion 7d ... covering Part 8 ... Pin 8d ... Tip part 9 ... Biasing member 10 ... Slide device 10c ... Lock mechanism (driven device)
DESCRIPTION OF SYMBOLS 11, 12 ... Operation lever 13 ... Shield 14 ... Intermediate member 15 ... Connection member 16 ... Arm 17 ... Release lever 20 ... Floor surface

Claims (3)

A vehicle seat,
A seat cushion, a seat back that is attached to the seat cushion so as to be adjustable in angle, a projecting member that projects outward in the seat width direction from a frame of the seat back, and the seat back forward with respect to the seat cushion A moving member that is pushed by the projecting member by rotating to move relative to the seat cushion, and a driven device that is connected to the moving member and can be operated by the moving member;
The projecting member includes an attachment portion attached to the frame, a first extension portion extending from the attachment portion, and a second extension portion extending outward in the seat width direction from the first extension portion. Have
The moving member is closed and the force receiving portion may be pressed by the projecting member, the cover portion covering the outside of the seat width direction of the protruding member,
The cover portion includes a cover portion that covers the second extension portion from the outside in the sheet width direction, and a tip that extends from the cover portion toward the first extension portion and is arranged in parallel with the second extension portion. vehicle seat to have a part.   The vehicle seat according to claim 1,
  The moving member includes a main body part, a standing part extending from the main body part to the outside in the sheet width direction, and the covering part extending from the standing part, and the leading end part and the standing part of the covering part A vehicle seat in which the second extending portion of the protruding member is located between the portions. The vehicle seat according to claim 1 or 2 ,
A pin that protrudes outward in the seat width direction from the frame on a rotation center line of the seat back with respect to the seat cushion and is restricted from moving in the seat width direction with respect to the frame; A vehicle seat in which a member is rotatably attached and movement is restricted in the seat width direction with respect to the pin.

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