JP5407735B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat in which a seat cushion is configured to be able to move up and down between a seating position and a boarding / exiting position higher than the seating position.

A conventional vehicle seat related to this is described in Patent Document 1.
As shown in FIG. 11, the vehicle seat described in Patent Literature 1 includes a seat cushion 100 including a cushion front portion 102 and a cushion rear portion 103. The lower front end portion of the cushion front portion 102 is connected to the front end portion of the seat frame 106 by a hinge 105, and the rear lower end portion of the cushion front portion 102 is connected to the lower front end portion of the cushion rear portion 103 by a hinge 107. Further, the cushion rear portion 103 is supported from below by a damper 108. As a result, when the occupant sits on the cushion rear part 103 and the cushion front part 102 pushed up by the damper 108 when getting on, the cushion rear part 103 and the cushion front part 102 resist the force of the damper 108 by the weight of the occupant. Then slowly descend to the seating position. When the occupant gets out of the vehicle, the damper 108 operates to push up the buttock of the occupant trying to stand up.
This makes it easy for the seated person to get on and off the vehicle.

JP 2007-237804 A

  In the vehicle seat described above, the cushion front portion 102 and the cushion rear portion 103 are pushed up by the damper 108, and as shown in FIG. It is open. This makes it possible for a seated person or the like to touch the lower surface of the cushion rear portion 103 and the damper 108 when riding, which is not preferable for safety.

  The present invention has been made to solve the above-described problems, and the problem to be solved by the present invention is to prevent a hand or the like from being sandwiched between the movable cushion portion that can be raised and lowered and the fixed cushion portion. To improve safety.

The above-described problems are solved by the inventions of the claims.
According to the first aspect of the present invention, the seat cushion includes a fixed cushion portion and a movable cushion portion, and the movable cushion portion has a seating position where the fixed cushion portion and the seating surface are continuous, and is higher and lower than the fixed cushion portion. A vehicle seat configured to be movable up and down between the movable cushion portion and the movable cushion portion at a boundary position between the movable cushion portion and the fixed cushion portion due to the rise of the movable cushion portion relative to the fixed cushion portion. A closing member for closing an open portion formed between the lower end and the seating surface of the fixed cushion portion, and the closing member is a hook-like shape protruding downward from the lower end of the side surface of the boundary position of the movable cushion portion A deformable sheet-like member that closes an open portion between the plate portion and the lower end edge of the plate portion and the boundary position side surface of the fixed cushion portion Characterized in that it is composed of.

According to the present invention, the closing member moves between the lower end of the movable cushion portion and the seating surface of the fixed cushion portion at the boundary position between the movable cushion portion and the fixed cushion portion due to the rise of the movable cushion portion with respect to the fixed cushion portion. It is comprised so that the open part formed between can be plugged up. For this reason, when the movable cushion part in the getting-on / off position descends, even if the seated person accidentally slides his / her hand into the open part of the movable cushion part and the fixed cushion part, this is prevented by the closing member, Troubles such as a hand being caught between the cushion part and the fixed cushion part can be prevented.
Further, since the closing member is composed of the plate portion and the deformable sheet-like member, interference between the closing member and the fixed cushion portion can be prevented with a simple configuration.

According to invention of Claim 2 , the sheet-like member is connected with the board part, It is characterized by the above-mentioned.

According to invention of Claim 3 , the base end part of a sheet-like member is connected with the lower end edge of the board part provided in the movable cushion part, or it is connected with the movable cushion part inside the said board part, The sheet-like member Is connected to the side surface of the boundary position of the fixed cushion portion, the seat-like member is deployed in the process of raising the movable cushion portion, and the movable cushion is in the getting-on / off position, The height dimension from the seating surface of the movable cushion to the connecting position of the plate portion and the sheet-like member or the lower end edge of the plate portion is determined from the connecting position or the lower end edge of the plate portion to the fixed cushion portion. It is characterized by being set larger than the height dimension to the seating surface.
For this reason, the base end portion of the sheet-like member is pulled downward by the lower end edge of the plate portion of the movable cushion portion while the movable cushion portion is lowered to the seating position, and the sheet-like member is stored below the seating surface. Will come to be. That is, in a state where the movable cushion part is lowered to the seating position, a part of the sheet-like member does not remain on the seating surfaces of the movable cushion part and the fixed cushion part. Therefore, the sitting comfort of the seat cushion is not lowered, and the appearance of the seating surface is not lowered.

According to the invention of claim 4 , the boundary position side surface of the fixed cushion portion is inclined so as to be directed upward, and the boundary position side surface of the movable cushion portion is inclined so as to be directed downward, the movable In a state where the cushion portion is in the sitting position, the boundary position side surface of the movable cushion portion is configured to be in surface contact with the boundary position side surface of the fixed cushion portion.
For this reason, when a seated person is sitting on the seat cushion with the movable cushion part in the sitting position, the weight of the seated person is added from the boundary position side surface of the movable cushion part to the boundary position side surface of the fixed cushion part. Become. For this reason, the boundary position side surface of the movable cushion portion and the boundary position side surface of the fixed cushion portion are completely in surface contact with each other while receiving the weight of the seated person, and a gap is generated at the boundary position between the movable cushion portion and the fixed cushion portion. Disappear. Thereby, the sitting comfort of the seat cushion does not decrease.
Further, as compared with the case where the boundary position side surface between the fixed cushion portion and the movable cushion portion is formed vertically, the gap size between both boundary position side surfaces when the movable cushion portion is raised and lowered is increased, and the sheet-like member Can be easily stored under the seating surface.

  According to the present invention, a hand or the like is not sandwiched between the movable cushion portion and the fixed cushion portion, and safety is improved.

1 is an overall perspective view of a vehicle seat according to Embodiment 1 of the present invention. It is a front view of the vehicle seat showing the state where the movable cushion part rose to the boarding / alighting position. It is a front view showing the raising / lowering mechanism of a movable cushion part. FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 1. It is the V section enlarged view of FIG. It is a longitudinal cross-sectional view (VI-VI arrow sectional drawing of FIG. 2) of the vehicle seat showing the state which the movable cushion part raised to the boarding / alighting position. It is the VII section enlarged view of FIG. It is a whole longitudinal cross-sectional view of the vehicle seat which concerns on the example of a change. It is the IX section enlarged view of FIG. It is an expanded vertical sectional view showing the state where the movable cushion part rose to the boarding / alighting position in the vehicle seat according to the modification. It is a whole side view of the conventional vehicle seat.

[Embodiment 1]
Hereinafter, the vehicle seat according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 10.
Here, front and rear, left and right and up and down in the figure correspond to front and rear, left and right and up and down of a vehicle seat and a passenger car on which the vehicle seat is installed. In addition, front and rear, right and left, and top and bottom in the specification also correspond to the above-described front and rear, right and left, and top and bottom.

<About the outline of the vehicle seat 10>
The vehicle seat 10 according to the present embodiment is a seat (driver's seat or the like) configured to be seated from the right direction through a right entrance and exit in a passenger car having a relatively low vehicle height.
As shown in FIGS. 1 and 2, the vehicle seat 10 includes a seat body 30 and a front / rear slide mechanism 20 that slides the seat body 30 back and forth with respect to the passenger compartment floor F.
Further, the seat body 30 can be pivoted up and down on a seat frame (not shown) supported by the front / rear slide mechanism 20, a seat cushion 40 installed on the seat frame, and a rear end portion of the seat frame. The seat back 35 connected in a state, and a cushion tilt mechanism 50 that lifts a part 43 of the seat cushion 40 with respect to the seat frame and the like and tilts the seat cushion 40 toward the entrance / exit. The seat frame is covered with a seat frame cover 31c so that it cannot be seen from the outside.

<Fore-and-aft slide mechanism 20>
As shown in FIGS. 1 and 2, the front / rear slide mechanism 20 includes a pair of left and right lower rails 22 that extend in the front-rear direction on the passenger compartment floor F, and left and right slides configured to be slidable in the front-rear direction along the left and right lower rails 22. The upper rail 23 and a drive mechanism (not shown) for sliding the upper rail 23 back and forth with respect to the lower rail 22 are configured. The lower rail 22 is a substantially C-shaped groove-shaped rail whose upper side is open, and the lower side of the front end and the lower side of the rear end are supported by the support material 21 as shown in FIG. It is fixed to the floor F. As shown in FIG. 2, the upper rail 23 is a plate-like rail having a substantially inverted T-shaped cross section, and the lower portion of the upper rail 23 is fitted to the lower rail 22 from the front end side or the rear end side. Yes. The upper rail 23 can slide in the front-rear direction along the lower rail 22 in a state where the upper rail 23 is fitted to the lower rail 22.

<About seat cushion 40>
As shown in FIG. 1, the seat cushion 40 includes a cushion front part 411, a cushion center part 412, and a cushion rear part 413 in order from the front side of the center part, and left on the left side of the center part (chamber interior center side). A right side portion 415 is provided on the right side of the side portion 414 and the central portion (side of the entrance / exit (not shown)). Further, the right side part 415 is divided into a front part 416, a central part 417 and a rear part 418.
The cushion central part 412 of the seat cushion 40 and the central part 417 of the right side part 415 are integrated, and the other part of the seat cushion 40, that is, the front part 416 and the rear part 418 of the right side part 415 and the cushion front part. It is divided from a part 411, a left side part 414, and a cushion rear part 413. And the front part 416, the rear part 418, the cushion front part 411, the left side part 414, and the cushion rear part 413 of the right side part 415 of the seat cushion 40 are being fixed to the said seat frame. For this reason, the front part 416, the rear part 418, the cushion front part 411, the left side part 414, and the cushion rear part 413 of the right side part 415 of the seat cushion 40 are hereinafter referred to as a fixed cushion part 45.
The cushion central portion 412 of the seat cushion 40 and the central portion 417 of the right side portion 415 are configured to be movable up and down with respect to the fixed cushion portion 45 by the action of the cushion tilt mechanism 50 (described later). For this reason, the cushion central portion 412 of the seat cushion 40 and the central portion 417 of the right side portion 415 are hereinafter referred to as a movable cushion portion 43.

As shown in FIG. 1, the movable cushion portion 43 is formed with a front end boundary position side surface 43 f, a left end boundary position side surface 43 e, and a rear end boundary position side surface 43 b at the boundary position with the fixed cushion portion 45. The fixed cushion portion 45 has a front end boundary position side surface 45f, a left end boundary position side surface 45e, and a rear end boundary position side surface 45b formed vertically at the boundary position with the movable cushion portion 43. Then, the movable cushion portion 43 is fixed to the front end boundary position side surface 43f, the left end boundary position side surface 43e, and the rear end boundary position side surface 43b of the movable cushion portion 43 in a state where it is lowered to the seating position as shown in FIG. The front end boundary position side surface 45f, the left end boundary position side surface 45e, and the rear end boundary position side surface 45b of the cushion portion 45 come into surface contact with each other.
As shown in the longitudinal sectional views of FIGS. 4 and 5, the movable cushion portion 43 has a cushion main body 434 made of urethane or the like overlaid on the molded iron plate 432, and the surface of the cushion main body 434 is the skin. 435.
Similarly, the cushion body 454 made of urethane or the like is overlaid on the upper side of the formed iron plate 452, and the surface of the cushion body 454 is covered with the skin 455.

<About the cushion tilt mechanism 50>
The cushion tilt mechanism 50 is a mechanism for raising the movable cushion portion 43 relative to the fixed cushion portion 45 of the seat cushion 40 and further tilting the movable cushion portion 43 so that the entrance / exit side is low and the indoor side is high. . As shown in FIGS. 2 to 4, etc., the cushion tilting mechanism 50 includes a base plate 52 having a front end portion and a rear end portion suspended and supported by the seat frame, and a pair of front and rear installed on the base plate 52. It is comprised from the crosslink 53 (refer FIG. 3) and the drive part 56 (refer FIG. 4) which operates those crosslinks 53. FIG.
As shown in FIG. 4 and the like, the base plate 52 of the cushion tilting mechanism 50 is bent and formed into a substantially U-shaped side surface, and the front end of the base plate 52 extends in the width direction at the front portion of the seat frame. It is bolted to the beam portion 31h. Further, the rear end upper portion of the base plate 52 is connected to a rear support tube 31t extending in the width direction at the rear portion of the seat frame.

The pair of front and rear cross links 53 of the cushion tilting mechanism 50 are configured to support the movable cushion portion 43 from the front and rear and to raise and lower the movable cushion portion 43. Here, since the front and rear cross links 53 are symmetrically formed in the front and rear direction and have the same configuration, the front cross link 53 will be described as a representative based on the front view of FIG.
The cross link 53 includes a linear first link 53a and a second link 53b, and the vicinity of the central portion of both the links 53a and 53b are connected to each other by a central connecting pin 53x so as to be vertically rotatable. And the lower end part of the 1st link 53a is connected with the receiving part (illustration omitted) formed in the front side bottom part right end of the base board 52 in the state which can be rotated up and down by the lower end connection pin 54. As shown in FIG. Further, a roller 53r is mounted on the upper end portion of the first link 53a, and the roller 53r can roll along a front rail portion 43y formed to extend in the left-right direction below the movable cushion portion 43. It is configured as follows.
Further, the upper end portion of the second link 53 b is connected to the vicinity of the right end of the front rail portion 43 y in the movable cushion portion 43 in a state in which the upper end connecting pin 55 can be turned up and down. A roller 53z is attached to the lower end portion of the second link 53b, and the roller 53z is configured to roll in the left-right direction along the front bottom portion 52y of the base plate 52.

When the drive unit 56 of the cushion tilting mechanism 50 operates and the first link 53a stands up while turning left about the lower end connecting pin 54, the first link 53a is connected to the center connecting pin 53x. The two links 53b stand while rotating rightward about the upper end connecting pin 55 of the movable cushion portion 43 of the seat cushion 40. In other words, the cross link 53 stands up by the operation of the drive unit 56 of the cushion tilt mechanism 50. As a result, the movable cushion portion 43 is pushed up by the cross link 53 and ascends gradually so that the right side (the entrance / exit side) is lowered while rising with respect to the fixed cushion portion 45. The movable cushion portion 43 is fixed to the movable cushion portion 43 by raising the thickness of the movable cushion portion 43 with respect to the fixed cushion portion 45 to be equal to or greater than the height dimension of the boundary position side surfaces 43f, 43e, 43b. An open portion is formed in the height direction at a boundary position with the cushion portion 45. From this state, when the cross link 53 is further raised and the cross link 53 is raised to a predetermined angle, the movable cushion portion 43 is raised to a predetermined height position as shown by a solid line in FIG. Tilt so that the entrance / exit side becomes lower. That is, the movable cushion portion 43 is held at the getting on / off position.
Further, when the cross link 53 moves in the inclining direction due to the reverse operation of the drive unit 56, the movable cushion portion 43 is lowered and rotated in a direction in which the inclination becomes gentle contrary to the above. When the movable cushion portion 43 is lowered to the original position (sitting position), the seating surface 40f of the movable cushion portion becomes continuous with the seating surface 40f of the fixed cushion portion 45.

<About the closing member 60>
A closing member 60 is provided at a boundary position between the movable cushion portion 43 and the fixed cushion portion 45 and a boundary position between the movable cushion and the right seat frame. The closing member 60 is an opening formed at the boundary position when the movable cushion portion 43 rises with respect to the fixed cushion portion 45 and the like to the height dimension of the boundary position side surfaces 43f, 43e, 43b of the movable cushion portion 43. It is a member for closing the part. As shown in FIGS. 5 to 7, the closing member 60 includes a resin plate portion 62 and a sheet-like member 64 made of the same material as the skin 435 of the movable cushion portion 43. The plate portion 62 is a rectangular tube formed in a bowl shape along the lower surface periphery of the movable cushion portion 43, and the upper edge of the plate portion 62 is formed of the movable cushion portion 43 as shown in FIG. It is fixed to a vertical rib 432f formed on the iron plate 432 by a clip, a screw or the like (not shown). Here, the height dimension of the plate part 62 is a height dimension at which the tip (lower end) of the plate part 62 does not interfere with the base plate 52 of the cushion tilting mechanism 50 when the movable cushion part 43 is lowered to the seating position. Is set to

The sheet-like member 64 covers the plate portion 62 and is an open portion formed between the lower end portion of the plate portion 62, the fixed cushion portion 45, and the seat frame when the movable cushion portion 43 rises to the getting-on / off position. It is a member which closes up. The sheet-like member 64 has a base end edge of the sheet-like member 64 sewn to the lower edge of the skin 435 of the movable cushion portion 43 as shown in FIGS. Along with the upper end edge of the portion 62, it is fixed to the vertical rib 432 f of the shaped iron plate 432 of the movable cushion portion 43. Further, the sheet-like member 64 is fixed to the lower end portion of the plate portion 62 by fixing pins 65 provided with a plurality of portions covering the lower end portion of the plate portion 62 at equal intervals in the circumferential direction.
That is, the position of the fixing pin 65 corresponds to a connection position where the plate portion and the sheet-like member are connected in the present invention.
In the sheet-like member 64, the four corners of the portion that hangs downward from the lower end portion of the plate portion 62 in a state where the movable cushion portion 43 is raised to the getting-on / off position (see FIGS. 6 and 7) are separated in the height direction. . That is, the sheet-like member 64 includes a front seat portion 64f positioned below the front end boundary position side surface 43f of the movable cushion portion 43, a left seat portion (not shown) positioned below the left end boundary position side surface 43e, It is separated into a rear seat portion (not shown) located on the lower side of the rear end boundary position side surface 43b and a right seat portion (not shown).

As shown in FIGS. 5 and 7, the front end portion of the front seat portion 64 f of the sheet-like member 64 is sewn to the lower side of the skin 455 of the front end boundary position side surface 45 f of the fixed cushion portion 45.
Similarly, the left and right seat portions of the sheet-like member 64 are sewn to the skin 455 of the left end boundary position side surface 45e and the skin 455 of the rear end boundary position side surface 45b of the fixed cushion portion 45, respectively. . Further, the front end portion of the right seat portion of the sheet-like member 64 is connected to the right seat frame.
Here, as shown in FIG. 7, the height dimension H from the seating surface 40f of the movable cushion portion 43 to the lower end edge (fixing pin 65) of the plate portion 62 is fixed when the movable cushion portion 43 is in the getting-on / off position. It is set to be larger than the height dimension L from the position of the pin 65 to the seating surface 40 f of the fixed cushion portion 45.

<Operation of the vehicle seat 10 according to the present embodiment>
First, the operation of the vehicle seat 10 will be described from the state where the occupant has been boarded. In this state, the movable cushion portion 43 of the seat cushion 40 is held at the seating position (lower limit position), and the seating surface 40f of the movable cushion portion 43 is in contact with the seating surface 40f of the fixed cushion portion 45 as shown in FIG. It is continuous. Further, by operating the front / rear slide mechanism 20, the front / rear position of the seat body 30 can be adjusted in accordance with the physique of the occupant.
Next, when the occupant gets off, the lift switch (not shown) is operated with the seat belt removed and the right door opened. As a result, the cushion tilting mechanism 50 operates in the direction in which the movable cushion portion 43 of the seat cushion 40 is raised, and the passenger's buttocks are gradually pushed up.
Here, when the movable cushion portion 43 is raised, the plate portion 62 of the closing member 60 is also raised together with the movable cushion portion 43, so that the base end portion of the sheet-like member 64 connected to the plate portion 62 is also raised. Then, the sheet-like member 64 is gradually developed. Thus, the boundary position side surfaces 43f, 43e, 43b of the movable cushion portion 43 are separated upward from the respective boundary position side surfaces 45f, 45e, 45b of the fixed cushion portion 45, and the right end of the movable cushion portion 43 is further away from the right seat frame. The open part formed by separating upward is closed by the closing member 60.
Then, the cushion tilt mechanism 50 stops when the movable cushion portion 43 rises to the getting-on / off position, the movable cushion portion 43 is held at the getting-on / off position, and as shown in FIGS. 6 and 7, the seat of the closing member 60 The shaped member 64 is fully deployed.

  At the time of boarding, after the occupant sits on the movable cushion part 43 at the boarding / alighting position, the cushion tilting mechanism 50 operates in a direction to lower the movable cushion part 43 by operating a lowering switch (not shown). When the movable cushion portion is lowered, the plate portion 62 of the closing member 60 is also lowered together with the movable cushion portion 43, and the base end portion of the sheet-like member 64 connected to the plate portion 62 is also lowered, and the sheet-like member 64. Gradually begins to relax. When the lower end portion of the plate portion 62 is lowered from the seating surface 40f of the fixed cushion portion 45, the base end portion of the sheet-like member 64 is pulled downward by the lower end portion of the plate portion 62, and the sheet-like member 64 is moved to the movable cushion. It is housed inside the boundary position between the portion 43 and the fixed cushion portion 45 and the boundary position between the movable cushion and the right seat frame. Thus, when the movable cushion portion 43 is lowered to the seating position, the cushion tilting mechanism 50 is stopped, the movable cushion portion 43 is held at the seating position, and as shown in FIGS. 4 and 5, the closing member Sixty sheet-like members 64 are completely stored inside the boundary position. Furthermore, the seating surface 40f of the movable cushion portion 43 is continuous with the seating surface 40f of the fixed cushion portion 45.

<Advantages of the vehicle seat 10 according to the present embodiment>
According to the vehicle seat 10 according to the present embodiment, the closing member 60 has its movable cushion portion at the boundary position between the movable cushion portion 43 and the fixed cushion portion 45 as the movable cushion portion 43 rises with respect to the fixed cushion portion 45. The open part formed between the lower end of 43 and the seating surface 40f of the fixed cushion part 45 is comprised so that it can block | close. For this reason, even when the seated person accidentally slides his / her hand into the open part of the movable cushion part 43 and the fixed cushion part 45 when the movable cushion part 43 in the getting-on / off position descends, this is caused by the closing member 60. It is obstructed and troubles such as a hand sandwiched between the movable cushion portion 43 and the fixed cushion portion 45 can be prevented.
Further, since the closing member 60 includes the plate portion 62 and the deformable sheet-like member 64, interference between the closing member 60, the fixed cushion portion 45, the cushion tilting mechanism 50, and the like can be prevented with a simple configuration.

Further, as shown in FIG. 7, the height dimension H from the seating surface 40f of the movable cushion portion 43 to the connection position (position of the fixed pin 65) where the lower end edge of the plate portion 62 and the sheet-like member 64 are connected is The height C is set to be larger than the height dimension L from the position of the fixed pin 65 to the seating surface 40f of the fixed cushion portion 45 in a state where the movable cushion portion 43 is in the getting on / off position.
Therefore, the base end portion of the sheet-like member 64 is pulled downward by the lower end edge of the plate portion 62 in the process in which the movable cushion portion 43 is lowered to the seating position, and the sheet-like member 64 is stored below the seating surface 40f. Will come to be. That is, a part of the sheet-like member 64 does not remain on the seating surface 40f of the movable cushion portion 43 and the fixed cushion portion 45 in a state where the movable cushion portion 43 is lowered to the seating position. Therefore, the seating comfort of the seat cushion 40 does not decrease, and the appearance of the seating surface 40f does not decrease.

<Example of change>
Here, the present invention is not limited to the above-described embodiment, and can be modified without departing from the gist of the present invention. For example, in this embodiment, as shown in FIGS. 4 to 7, the boundary position side surfaces 43 f, 43 e, 43 b (hereinafter referred to as the boundary position side surface 43 f) of the movable cushion portion 43 and the boundary position side surface of the fixed cushion portion 45. An example is shown in which 45f, 45e, 45b (hereinafter referred to as boundary position side surface 45f) are formed vertically. However, as shown in FIGS. 8 to 10, the boundary position side surface 45 f of the fixed cushion portion 45 is an upward inclined surface and the boundary position side surface 43 f of the movable cushion portion 43 is a downward inclined surface. You may comprise so that the boundary position side surface 43f may surface-contact with the boundary position side surface 45f of the fixed cushion part 45. FIG.
Thus, when the seated person is sitting on the seat cushion 40 with the movable cushion portion 43 in the sitting position, the weight of the seated person is changed from the boundary position side surface 43f of the movable cushion portion 43 to the boundary position of the fixed cushion portion 45. It comes to be added to the side surface 45f. For this reason, the boundary position side surface 43f of the movable cushion portion 43 and the boundary position side surface 45f of the fixed cushion portion 45 receive the weight of the seated person and completely come into surface contact, and the boundary position between the movable cushion portion 43 and the fixed cushion portion 45 With no gaps. As a result, the sitting comfort of the seat cushion 40 is not reduced.
Further, as compared with the case where the boundary position side surfaces 45f and 43f between the fixed cushion portion 45 and the movable cushion portion 43 are formed vertically, the gap between the boundary position side surfaces 45f and 43f when the movable cushion portion 43 is raised and lowered. The size is increased, and the sheet-like member 64 can be easily stored below the seating surface 40f.

Further, in the present embodiment, as shown in FIG. 1, the movable cushion portion 43 is composed of a cushion central portion 412 of the seat cushion 40 and a central portion 417 of the right side portion 415, and the movable cushion portion 43 and the fixed cushion portion 45. An example is shown in which the boundary position between and is a U-shaped plane. However, the division of the movable cushion portion 43 and the fixed cushion portion 45 in the seat cushion 40 can be changed as appropriate, and the position where the closing member 60 is provided can be changed by changing the boundary position associated therewith. .
Further, in the present embodiment, the example in which the closing member 60 is provided between the right end of the movable cushion portion 43 and the right seat frame is shown, but when the movable cushion portion 43 is lifted, the right end of the movable cushion portion 43 and the seat As long as the gap does not occur between the frame cover 31c and the closing member 60 at this portion, the closing member 60 can be omitted.
Moreover, in this embodiment, the example which connects the sheet-like member 64 of the closing member 60 and the lower end edge of the board part 62 with the fixing pin 65 was shown. However, by connecting the sheet-like member 64 from the inside of the plate portion 62 to the lower end of the movable cushion portion 43, the movable cushion portion 43 is lowered even if the sheet-like member 64 and the plate portion 62 are not connected. In doing so, it becomes possible to push down (pull) the sheet-like member 64 downward at the lower end of the plate portion 62.
In the present embodiment, the base end portion of the sheet-like member 64 of the closing member 60 is connected to the lower end portion of the plate portion 62 provided in the movable cushion portion 43, and the distal end portion of the sheet-like member 64 is fixed to the fixed cushion portion. The example of sewing to the boundary position side surface 45f of 45 was shown. However, the configuration may be such that the leading end side of the sheet-like member 64 can be wound and fed out by a winding device provided on the seat frame side.
In the present embodiment, the example in which the present invention is applied to the seat on the driver's seat side has been described. However, the present invention can also be applied to the seat on the passenger seat side and other seats. Furthermore, the configuration of the cushion tilting mechanism 50 that raises and lowers the movable cushion portion 43 can be changed as appropriate.

40 ··· Seat cushion 40f ··· Seating surface 43 ··· Movable cushion portion 43f · · · Front end boundary position side surface (boundary position side surface)
43e ... Left edge boundary position side surface (boundary position side surface)
43b ... Rear end boundary position side surface (boundary position side surface)
45 ··· Fixed cushion 45f ··· Front end boundary position side surface (boundary position side surface)
45e ... Left edge boundary position side surface (boundary position side surface)
45b ... rear end boundary position side surface (boundary position side surface)
60 ··· Closing member 62 ··· Plate portion 64 ··· Sheet member 65 ··· Fixing pin (connection position)
X: Sewing position

Claims (4)

The seat cushion is composed of a fixed cushion part and a movable cushion part, and the movable cushion part can be moved up and down between a seating position where the fixed cushion part and the seating surface are continuous and a boarding / exiting position higher than the fixed cushion part. A vehicle seat configured as follows:
An open portion formed between the lower end of the movable cushion portion and the seating surface of the fixed cushion portion at the boundary position between the movable cushion portion and the fixed cushion portion due to the rise of the movable cushion portion with respect to the fixed cushion portion. It includes a closure member for closing the,
The closing member is a bowl-shaped plate portion that protrudes downward from the lower end of the boundary position side surface of the movable cushion portion;
A vehicular seat comprising: a deformable sheet-like member that closes an open portion between a lower end edge of the plate portion and a boundary position side surface of the fixed cushion portion . The vehicle seat according to claim 1,
The vehicle seat , wherein the sheet-like member is connected to the plate portion . The vehicle seat according to any of claims 1 or claim 2,
A base end portion of the sheet-like member is connected to a lower end edge of a plate portion provided in the movable cushion portion, or is connected to a movable cushion portion inside the plate portion, and a distal end portion of the sheet-like member is fixed. It is connected to the boundary position side surface of the cushion portion, and the seat-like member is deployed in the process of raising the movable cushion portion,
In the state where the movable cushion is in the getting-on / off position, the height dimension from the seating surface of the movable cushion to the connecting position of the plate portion and the sheet-like member, or the lower end edge of the plate portion is the connecting position, or A vehicle seat characterized in that it is set to be larger than a height dimension from a lower end edge of the plate portion to a seating surface of the fixed cushion portion . A vehicle seat according to any one of claims 1 to 3, wherein
The boundary position side surface of the fixed cushion portion is inclined so as to be directed upward, and the boundary position side surface of the movable cushion portion is inclined so as to be directed downward,
The vehicle seat, wherein the movable cushion portion is in a seated position so that a boundary position side surface of the movable cushion portion is in surface contact with a boundary position side surface of the fixed cushion portion .

Images