JP7200840B2 - vehicle seat - Google Patents

Description

The present invention relates to a vehicle seat with a retractable tabletop.

Japanese Patent Application Laid-Open No. 2002-200000 discloses a technique related to a vehicle seat having a table plate that can be retracted. As shown in FIG. 18 , the vehicle seat described in Patent Document 1 includes a vertical slide mechanism 104 provided on the back surface of a seat back 100 and a slide member 104 s of the vertical slide mechanism 104 through a rotation mechanism 106 . and a table plate 102 mounted in a vertically rotatable state. As a result, the table plate 102 is lifted upward from the storage position on the back surface of the seat back 100 to the use position by the vertical slide mechanism 104, and the table plate 102 is rotated to a horizontal position by the rotation mechanism 106. 102 can be used as a table in the back seat.

JP 2019-48506 A

However, in the vehicle seat described above, the table plate 102 is provided at a position where the rear surface of the seat back 100 can be seen. Furthermore, a vertical slide mechanism 104 extending in the vertical direction is provided on the rear surface of the seat back 100 . Therefore, the table plate 102 and the vertical slide mechanism 104 are too conspicuous, and the design of the vehicle seat is deteriorated. In addition, if the design of the vehicle seat is taken into account and the cover or the like is covered, the cost increases.

The present invention has been made to solve the above problems, and the problem to be solved by the present invention is to make the table invisible when it is used as a seat in a seat with a table, It is to improve designability.

The above problems are solved by each invention. A first invention is a vehicle seat provided with a retractable table plate, comprising a seat cushion configured to be vertically rotatable between a sitting position where a passenger can sit and a standing position, and the table. The plate is connected to the rotatable free end of the seat cushion so as to be vertically rotatable, and can be stacked and stored on the back side of the seat cushion opposite to the seating surface on which the occupant sits. When the cushion is rotated from the sitting position to the standing position, the table plate is configured to be rotatable in a direction in which the table plate is deployed with respect to the seat cushion. It is configured to be able to adjust the rotation angle in the direction in which the seat cushion is deployed from the storage position overlapping the back side of the seat cushion, and the angle adjustment mechanism is arranged radially outward from the rotation center of the table plate. a protruding arm, a link whose distal end is connected to the arm in a vertically rotatable state, a driving mechanism connected to the proximal end of the link for pushing and pulling the link, and a driving mechanism connecting the driving mechanism to the seat. a connecting member that connects to the cushion frame of the cushion .

According to the present invention, the table plate is stored in a state of being superimposed on the back side of the seat cushion opposite to the seating surface on which the occupant sits. Therefore, when the seat cushion is in the seated position, the table plate is stored under the seat cushion. Therefore, when the seat cushion is in use, the table plate is not visible from the outside, improving the appearance of the vehicle seat. Further, when the seat cushion is not used and rotated to the upright position, the table plate can be rotated in the direction in which it is unfolded relative to the seat cushion, so that the table plate can be used as a table.
Furthermore, it is possible not only to set the table plate horizontally and use it as a table, but also to use it by tilting it obliquely, or by standing it up and using it as a wall.

According to the invention of the second invention , the seat cushion is configured so that the angle can be adjusted between the sitting position and the standing position. Therefore, the height of the table board can be adjusted by adjusting the inclination angle of the seat cushion between the sitting position and the standing position and adjusting the angle of the table board with respect to the seat cushion so that the table board becomes horizontal. .

According to the present invention, in a seat with a table, the table becomes invisible when the seat is used as a seat, and the design is improved.

BRIEF DESCRIPTION OF THE DRAWINGS It is the whole perspective view which looked at the vehicle provided with the vehicle seat which concerns on Embodiment 1 of this invention from the left front. It is a perspective view of the state where the said vehicle seat was folded. It is a perspective view of the state using the said vehicle seat as a seat. It is a perspective view of the state using the said vehicle seat as a table. FIG. 4 is a perspective view of the vehicle seat monitor in use; FIG. 4 is a perspective view of the vehicle seat being used as a table with a monitor; It is a side view showing the 1st angle adjustment mechanism which adjusts the angle of the 1st table board with respect to the seat cushion of the said vehicle seat. It is an operation side view of a said 1st angle adjustment mechanism. It is a perspective view showing the 2nd angle adjustment mechanism which adjusts the angle of the 2nd table board with respect to the 1st table board. It is a longitudinal cross-sectional view showing a torque transmission portion of the second angle adjustment mechanism. It is a vertical cross-sectional view of the rotation control mechanism which hold|maintains a 1st table board and a 2nd table board in a storage position. 11. It is an XII arrow enlarged view of FIG. It is a vertical cross-sectional view of the rotation restricting mechanism when the first table plate and the second table plate are in a horizontal position. FIG. 4 is a vertical cross-sectional view of the rotation restricting mechanism when the first table plate is in the horizontal position and the second table plate is in the monitor use position; FIG. 4 is a side view of the vehicle seat being used as a table with a monitor; It is a modification of the state using the said vehicle seat as a table. It is a vertical cross-sectional view showing the example of a change of a rotation control mechanism. FIG. 11 is a side view showing a conventional vehicle seat;

[Embodiment 1]
A vehicle seat according to a first embodiment of the present invention will be described below with reference to FIGS. 1 to 17. FIG. A vehicle seat according to the present embodiment is a vehicle seat provided with a table, and is used in the rear portion of the vehicle interior. Here, front, rear, left, right, and up and down shown in the drawings correspond to front, rear, left, right, and up and down of a vehicle provided with a vehicle seat.

<Overview of vehicle 10>
The vehicle 10 is a vehicle capable of automatic operation. In the vehicle 10, as shown in FIG. 1, for example, a computer (not shown) is provided in a dashboard 12 provided in the front part of the vehicle interior to perform automatic operation of the vehicle 10 and other control operations. ) is installed. Left and right seats 21 and 22 are installed in the passenger compartment, and a seat moving device (not shown) consisting of a forward/rearward sliding mechanism, an elevating mechanism, a rotating mechanism, etc. is provided under each of the seats 21 and 22. ing. A foldable seat 30 (referred to as a vehicle seat 30) according to the present embodiment is provided in the rear portion of the vehicle compartment. Note that FIG. 1 omits the windshield, roof panel, left and right doors, etc., which constitute the passenger compartment.

<Overview of Vehicle Seat 30>
The vehicle seat 30 is configured not only to be used as a rear seat, but also to be used as a table, a monitor, or the like by passengers seated on the front seats 21 and 22 facing backward. As shown in FIGS. 2 to 6, the vehicle seat 30 includes a seat base 32, and a seat cushion 34 and a seat back 36 which are connected to the seat base 32 so as to be vertically rotatable. The seat pedestal 32 of the vehicle seat 30 includes a pedestal main body 32m formed in a substantially T-shaped thick plate shape, and arm portions 32h provided on the left and right sides of the pedestal main body. A lower end portion and an upper rear portion of a gantry body portion 32m of the seat pedestal 32 are supported by two sets of left and right slide mechanisms 16 provided on the floor portion F of the passenger compartment. As a result, the vehicle seat 30 can be moved in the left-right direction in the rear part of the passenger compartment by the action of the left-right slide mechanism 16 .

As shown in FIGS. 2 to 6, the lower end of the seat back 36 is connected to the tip positions of the left and right arms 32h of the seat base 32 so as to be vertically rotatable. In addition, the rear end of the seat cushion 34 is connected to an intermediate position of the left and right arm portions 32h of the seat mount 32 so as to be vertically rotatable. An angle adjustment mechanism (not shown) for adjusting the reclining angle of the seat back 36 is provided between the arm portion 32h of the seat mount 32 and the lower end portion of the seat back 36 . An angle adjustment mechanism (not shown) having the same structure as the angle adjustment mechanism of the seat back 36 is provided between the arm portion 32h of the seat mount 32 and the rear end portion of the seat cushion 34. As shown in FIG. The seat cushion 34 is configured so that the angle can be adjusted between a sitting position (see FIG. 3) where the occupant can sit and a standing position (see FIG. 2) in which the occupant is in a substantially upright position. there is Here, the angle adjusting mechanism of the seat cushion 34 and the angle adjusting mechanism of the seat back 36 are driven based on signals from the computer within the dashboard 12 .

<Regarding the basic structure of the seat cushion 34>
As shown in FIG. 11 and the like, the seat cushion 34 includes a cushion frame 341, a cushion pad 342 made of, for example, urethane covering the cushion frame 341 from above (rear in FIG. 11), and a skin covering the surface of the cushion pad 342. 343. Then, as shown in FIG. 3, the upper surface side of the seat cushion 34 when the seat cushion 34 is in the seating position serves as a seating surface 34s. The seat back 36 has the same basic configuration as the seat cushion 34, and includes a back frame, a back pad covering the back frame from the front, and a skin covering the surface of the back pad. The front side of the seat back 36 serves as a backrest surface 36 h for the passenger seated on the seat cushion 34 .

<About the table device 40 of the seat cushion 34>
A table device 40 is provided on the back side of the seat cushion 34 opposite to the seating surface 34s of the seat cushion 34, as shown in FIGS. The table device 40 includes a first table plate 41 and a second table plate 42 used as table surfaces. The first table plate 41 is a square flat plate, and is connected to the rotatable free end side of the cushion frame 341 of the seat cushion 34 via a first hinge 41h so as to be vertically rotatable. Then, as shown in FIG. 2, the first table plate 41 rotates downward (leftward in FIG. 2) about the first hinge 41h, and the first table plate 41 overlaps the back side of the seat cushion . storage position. Here, the surface of the first table plate 41 facing the seat cushion 34 is the back surface, and the front surface of the first table plate 41 is used as the table surface.

The second table plate 42 is a rectangular flat plate slightly smaller than the first table plate 41, and is connected to the center of rotation of the first table plate 41 by a second hinge 42h so as to be vertically rotatable. The second table plate 42 is provided on the surface side of the first table plate 41, and the second hinge 42h is near the first hinge 41h of the first table plate 41 and has an axis parallel to that of the first hinge 41h. are arranged so that As a result, the second table plate 42 can be unfolded with respect to the first table plate 41 by rotating upward from the overlapping position where it is superimposed on the surface of the first table plate 41 . A monitor 42m is provided on the back surface of the second table plate 42, which is superimposed on the front surface of the first table plate 41, as shown in FIG. 6 and the like. The surface of the second table plate 42 is used as a table surface.

The table device 40 rotates the first table plate 41 with respect to the cushion frame 341 of the seat cushion 34 around the first hinge 41h to adjust the angle of the first table plate 41 with respect to the horizontal plane. 50 (see FIGS. 7 and 8). Further, the table device 40 rotates the second table plate 42 with respect to the first table plate 41 around the second hinge 42h to adjust the angle of the second table plate 42 with respect to the first table plate 41. A two-angle adjustment mechanism 60 (see FIG. 9) is provided. Here, the first angle adjustment mechanism 50 and the second angle adjustment mechanism 60 are driven based on signals from the computer within the dashboard 12 .

<About the first angle adjustment mechanism 50>
As shown in FIGS. 7 and 8, the first angle adjustment mechanism 50 includes an arm 51 integrated with the first table plate 41 and protruding radially outward from the central axis of the first hinge 41h, and the tip of the arm 51. A link 53 is connected to the portion (protruding end portion) so as to be vertically rotatable. The first angle adjusting mechanism 50 includes a nut 55 attached to the base end of the link 53, a screw shaft 54 screwed onto the nut 55, and a motor 56 rotating the screw shaft 54 around its axis. I have. Here, the screw shaft 54 is rotatably supported by a bearing portion 57 at the lower end portion of the screw shaft 54 . A bearing portion 57 that supports the screw shaft 54 is attached to the cushion frame 341 .

With the above configuration, when the screw shaft 54 rotates about its axis by driving the motor 56 , the link 53 attached to the nut 55 moves up and down along the screw shaft 54 due to the screwing action between the screw shaft 54 and the nut 55 . . As a result, the link 53 pushes up or pulls down the arm 51 of the first table plate 41, thereby rotating the first table plate 41 vertically around the first hinge 41h. That is, when the motor 56 rotates forward and the link 53 moves upward due to the screwing action of the screw shaft 54 and the nut 55, the arm 51 is pushed up by the link 53 as shown in FIG. 41 rotates downward (rotates leftward) around the first hinge 41h. When the motor 56 reverses and the link 53 moves downward due to the screwing action of the screw shaft 54 and the nut 55, the arm 51 is pulled down by the link 53 as shown in FIG. It rotates upward (rotates right) around the first hinge 41h.

<Regarding the second angle adjustment mechanism 60>
The second angle adjustment mechanism 60 is a mechanism that adjusts the angle of the second table plate 42 with respect to the first table plate 41, as described above. As shown in the bottom view of FIG. 9, the second angle adjustment mechanism 60 is provided on the back surface of the first table plate 41 on the rotation center side. The second angle adjustment mechanism 60 includes a motor 62 and a gear mechanism 64 that amplifies the torque of the motor 62 . The gear mechanism 64 is provided with a prismatic output rotary shaft 64j. The output rotary shaft 64j is a long shaft extending in the left-right direction, and the left end portion and the right end portion of the output rotary shaft 64j are arranged in a state in which they cannot rotate relative to the cylindrical portions 65e (input portions) of the left and right torque transmission portions 65, respectively. Concatenated.

The output shafts 65j (see FIG. 10) of the left and right torque transmission portions 65 are connected to the square shafts 42k (see FIGS. 10 and 11) of the left and right second hinges 42h for rotating the second table plate 42. . Here, as shown in FIGS. 9, 11, etc., the left and right second hinges 42h pass through the openings 41x for hinges formed at the left end and the right end of the first table plate 41. It protrudes behind 41. Further, as shown in FIG. 9, the cylindrical portion of the square shaft 42k protruding from the left and right second hinges 42h toward the torque transmission portion 65 is supported by a bearing 67 on the back surface of the first table plate 41. As shown in FIG.

As shown in FIG. 10, the torque transmission portion 65 is composed of a cylindrical portion 65e and a cylindrical output shaft 65j housed in the cylindrical portion 65e. The inner peripheral surface of the cylindrical portion 65e of the torque transmission portion 65 and the outer peripheral surface of the output shaft 65j are in surface contact, and a predetermined frictional force is generated between the cylindrical portion 65e and the output shaft 65j in the rotational direction. there is Here, the torque caused by the frictional force between the cylindrical portion 65e of the torque transmission portion 65 and the output shaft 65j is set to be larger than the proper torque required to rotate the second table plate 42. . That is, the torque transmission portion 65 is configured to transmit an appropriate amount of torque required to rotate the second table plate 42 . Further, when the torque transmission portion 65 receives a torque larger than the torque (predetermined torque) caused by the frictional force, the cylindrical portion 65e and the output shaft 65j rotate relative to each other against the frictional force, and the torque is transmitted. become impossible.

Therefore, when the gear mechanism 64 is driven by the motor 62 and the output rotary shaft 64j rotates the second table plate 42, the cylindrical portion 65e of the torque transmission portion 65 and the output shaft 65j rotate together. The rotational force of the output rotary shaft 64j is transmitted to the second table plate 42 through this. However, if, for example, the rotation of the second table plate 42 is hindered by an external force during the operation of the motor 62 and gear mechanism 64, a large torque acts on the torque transmission portion 65, causing the cylindrical portion 65e and the output to rotate. It rotates relative to the shaft 65j against the frictional force. As a result, large torque is not applied to the motor 62, the gear mechanism 64, etc., and damage to the second angle adjustment mechanism 60 can be prevented.

<Regarding the Rotation Regulation Mechanism 70 of the Table Device 40>
As shown in FIG. 11, in the table device 40, when the first table plate 41 and the second table plate 42 overlap and are in the storage position, the first table plate 41 and the second table plate 41 and the second table plate 41 and the second table plate 41 and the second table plate 41 and the second table plate 41 and the second table plate 42, respectively, are prevented from moving due to gravity, vibration, and the like. A rotation restriction mechanism 70 is provided to restrict rotation with respect to the plate 42 in the deployment direction. As shown in FIG. 3, the rotation restriction mechanism 70 is a mechanism provided in consideration of the fact that the table device 40 is retracted under the seat cushion 34 when the seat cushion 34 is in the seated position. . As shown in FIG. 12 (enlarged view of XII in FIG. 11), the rotation restricting mechanism 70 includes a projection 73 provided on the rotation free end side (front end side) of the cushion frame 341 of the seat cushion 34, and a second A receiving surface 75 is formed on the second hinge 42h of the table plate 42 and with which the tip of the protrusion 73 abuts.

As shown in FIG. 12, the protrusion 73 of the rotation restricting mechanism 70 is attached to the tip of a support pin 72 provided on the support base 71 . The support base 71 is fixed to the cushion frame 341 of the seat cushion 34 . The support pin 72 is positioned so that its axis extends in the thickness direction of the seat cushion 34, and is attached to the support base 71 so as to be displaced by a predetermined distance in the axis direction. A coil spring 74 is mounted around the support pin 72 between the projecting portion 73 and the support base 71 , and the coil spring 74 biases the projecting portion 73 in a direction to push it out from the support base 71 . Therefore, when the protrusion 73 is not in contact with the receiving surface 75 of the second hinge 42h of the second table plate 42, the protrusion 73 is maintained in a state of protruding most from the back side of the seat cushion 34 by the action of the coil spring 74. It is

As shown in FIG. 12, the receiving surface 75 of the rotation restricting mechanism 70 has a cross section L on the outer peripheral surface of the second hinge 42h of the second table plate 42 that protrudes from the hinge opening 41x of the first table plate 41 to the back side. It is formed in a letter-shaped notch. Further, the receiving surface 75 is arranged on the opposite side of the second table plate 42 with respect to the center of rotation (square shaft 42k) of the second hinge 42h when the second table plate 42 is superimposed on the first table plate 41. and at a position corresponding to the protrusion 73 . As a result, when the first angle adjustment mechanism 50 operates to rotate the second table plate 42 together with the first table plate 41 to the retracted position, as shown in FIG. The tip of the portion 73 abuts, and the receiving surface 75 receives a pressing force corresponding to the spring force of the coil spring 74 by the projecting portion 73 .

As a result, the second table plate 42 receives a rotational force in the leftward rotation direction about the second hinge 42h, and presses the first table plate 41 in a direction approaching the seat cushion 34 (cushion frame 341). As a result, even if the first table plate 41 and the second table plate 42 are stored under the seat cushion 34, the two table plates 41 and 42 do not rotate in the unfolding direction due to their own weight or the like. . Note that when the first table plate 41 rotates to the right around the first hinge 41h (right rotation in FIG. 12) due to the operation of the first angle adjustment mechanism 50, the receiving surface 75 moves away from the protrusion 73. , the rotation restricting mechanism 70 does not prevent the first table plate 41 from rotating to the right (rotation in the unfolding direction).

<Usage Mode of Vehicle Seat 30>
<rear seat>
As shown in FIG. 2, when the vehicle seat 30 in the folded state is used as a rear seat, first, the angle adjusting mechanism of the seat cushion 34 operates so that the seat cushion 34 in the upright position is seated. It rotates downward with respect to the frame 32 . Then, as shown in FIG. 3, the seat cushion 34 is rotated downward to the seating position, and the reclining angle of the seat back 36 is adjusted, so that the vehicle seat 30 can be used as a rear seat. At this time, since the table device 40 is stored under the seat cushion 34, it cannot be seen from the outside, and the appearance of the vehicle seat 30 used as the rear seat is not degraded. Further, in the state where the table device 40 is stored, as shown in FIG. 12, the rotation restricting mechanism 70 operates. That is, the tip of the projecting portion 73 that constitutes the rotation restricting mechanism 70 presses the receiving surface 75 of the second hinge 42h of the second table plate 42 by spring force. Therefore, a rotational force is applied to the second table plate 42 of the table device 40 to press the first table plate 41 toward the seat cushion 34 (upward). As a result, the first table plate 41 and the second table do not rotate downward due to their own weight, vibration, or the like.

<Table>
As shown in FIG. 2, when the vehicle seat 30 in the folded state is used as a table, the first table plate is moved by operating the first angle adjustment mechanism 50 (see FIG. 7) of the table device 40. 41 rotates upward around the first hinge 41h. As a result, the second table plate 42 superimposed on the first table plate 41 also rotates upward. At this time, since the receiving surface 75 of the second hinge 42 h of the second table plate 42 constituting the rotation restricting mechanism 70 is separated from the protrusion 73 on the seat cushion 34 side, the rotation restricting mechanism 70 is prevented from moving the first table plate 41 . It does not hinder right rotation (rotation in the deployment direction). 4, 8, and 13, the vehicle seat 30 can be used as a table in a state in which the first table plate 41 is rotated upward to the horizontal position by the operation of the first angle adjustment mechanism 50. can be done. In this case, the surface of the second table plate 42 becomes the table surface.

Here, the height position of the table surface can be adjusted by adjusting the angle of the seat cushion 34 with respect to the seat mount 32 and the angle of the first table plate 41 with respect to the seat cushion 34, as shown in FIG. For example, when raising the table surface, the inclination angle of the seat cushion 34 is adjusted in the standing direction (see the solid line in FIG. 15), and the first angle adjusting mechanism 50 operates accordingly to move the first table plate. 41 is held in a horizontal position. Further, when the table surface is to be lowered, the inclination angle of the seat cushion 34 is adjusted in the lying down direction (see the two-dot chain line in FIG. 15), and the first angle adjusting mechanism 50 operates correspondingly to the first seat cushion. A table plate 41 is also held in a horizontal position. Thereby, the height of the table surface can be adjusted according to the physique of the passenger seated on the front seat 22 . Further, as shown in FIG. 16, the seat back 36 can be tilted rearward to secure a rearward view of the vehicle compartment when the vehicle seat 30 is used as a table.

<table with monitor>
As shown in FIG. 4 or FIG. 16, when the vehicle seat 30 is used as a table and the monitor 42m is used, the second angle adjustment mechanism 60 operates to move the second table plate 42. rotates up to a predetermined angular position with respect to the first table plate 41 . Here, when the first table plate 41 is in the horizontal position as shown in FIG. It is away from the protrusion 73 on the side. Therefore, when the second angle adjusting mechanism 60 rotates the second table plate 42 upward with respect to the first table plate 41 , the rotation restricting mechanism 70 does not hinder the upward rotation of the second table plate 42 . Then, as shown in FIGS. 6 and 14, the second table plate 42 is rotated upward to a predetermined angular position by the second angle adjustment mechanism 60, and the monitor 42m becomes usable on the table. In this state, the surface of the first table plate 41 serves as the table surface.

Here, when the gear mechanism 64 is operated by driving the motor 62 of the second angle adjustment mechanism 60 and the output rotary shaft 64j rotates the second table plate 42, the cylindrical portion 65e of the torque transmission portion 65 and the output shaft 65j rotates together, and the torque of the output rotary shaft 64j is transmitted to the second table plate 42. As shown in FIG. However, for example, if the rotation of the second table plate 42 is hindered by an external force, a large torque acts on the torque transmission portion 65, and the cylindrical portion 65e and the output shaft 65j resist the frictional force. relative rotation. As a result, large torque is not applied to the motor 62, the gear mechanism 64, etc., and damage to the second angle adjustment mechanism 60 can be prevented.

<Use monitor alone>
As shown in FIG. 2, when the monitor 42m is used alone with the vehicle seat 30 in the folded state, first, the rotation restriction state of the rotation restriction mechanism 70 is released. That is, the first angle adjusting mechanism 50 (see FIG. 7) operates, and the first table plate 41 rotates to the right by a predetermined angle about the first hinge 41h from the state shown in FIG. to rotate). As a result, the receiving surface 75 of the second hinge 42h of the second table plate 42 is separated from the protrusion 73 on the seat cushion 34 side. Next, the second angle adjustment mechanism 60 operates to rotate the second table plate 42 upward with respect to the first table plate 41 . Then, as shown in FIG. 5, the monitor 42m can be used independently in a state where the second table plate 42 is rotated upward to the standing position. As a result, for example, the monitor 42m can be used even when a load or the like is loaded in front of the vehicle seat 30 in the folded state.

<Correspondence between the terms of the vehicle seat 30 according to the first embodiment and the terms according to the present invention>
The first table board 41 and the second table board 42 correspond to the table board of the present invention. Also, the first angle adjustment mechanism 50 corresponds to the angle adjustment mechanism of the present invention. Further, the screw shaft 54, the nut 55 and the motor 56 of the first angle adjusting mechanism 50 correspond to the driving mechanism of the present invention, and the bearing portion 57 corresponds to the connecting member of the present invention.

<Advantages of the vehicle seat 30 according to the present embodiment>
According to the vehicle seat 30 according to the present embodiment, the first table plate 41 and the second table plate 42 (table plate) are superimposed on the back side of the seat cushion 34 opposite to the seating surface 34s on which the occupant sits. Stored. Therefore, when the seat cushion 34 is in the seated position, the first table plate 41 and the second table plate 42 are stored under the seat cushion 34 . Therefore, when the seat cushion 34 is ready for use, the first table plate 41 and the second table plate 42 are not visible from the outside, and the appearance of the vehicle seat 30 is not deteriorated. Further, when the seat cushion 34 is not used and is rotated in the standing direction, the first table plate 41 and the like can be rotated in the direction in which the seat cushion 34 is unfolded. can be used as a table.

The first table plate 41 is configured to be able to adjust the rotation angle in the direction in which it is deployed with respect to the seat cushion 34 from the retracted position overlapping the back side of the seat cushion 34 by the action of the first angle adjustment mechanism 50 . Therefore, it is possible not only to use the first table plate 41 horizontally as a table, but also to use it by tilting it obliquely, or by standing it up and using it as a wall. In addition, since the seat cushion 34 is configured to be angle-adjustable between the sitting position and the standing position, the inclination angle of the seat cushion 34 is adjusted between the sitting position and the standing position, and the first table plate 41 with respect to the seat cushion 34 is adjusted. By adjusting the angle so that the table plate is horizontal, the height of the table plate can be adjusted. Further, since the height of the table board is adjusted by adjusting the angle of the seat cushion 34, the power for storing the seat cushion 34 and adjusting the height of the table board can be used together, thereby reducing the cost.

<Change example>
Here, the present invention is not limited to the above embodiments, and modifications can be made without departing from the gist of the present invention. For example, in the rotation restricting mechanism 70 of this embodiment, as shown in FIG. An example is shown in which the second table plate 42 is urged in the upward rotation direction by being pressed. However, as shown in FIG. 17, the receiving surface 75 of the second hinge 42h is provided between the second table plate 42 and the angular shaft 42k (rotation center) of the second hinge 42h, and the projection 73 on the seat cushion 34 side and the second hinge 42h are provided. A configuration in which the receiving surface 75 of the second hinge 42h is attracted by magnetic force is also possible. As a result, the first table plate 41 and the second table plate 42 can be held at the storage position shown in FIG.

Moreover, in this embodiment, the table device 40 having a configuration in which the second table plate 42 is superimposed on the first table plate 41 is exemplified. However, it is also possible to apply the present invention to the table device 40 consisting of only the first table plate 41 . Further, in the present embodiment, an example of applying the present invention to the seats used in the vehicle interior of the vehicle 10 has been shown, but the present invention can also be applied to seats other than vehicles such as trains, airplanes, and ships. be.

30: Vehicle seat 34: Seat cushion 34s: Seating surface 341: Cushion frame 41: First table plate (table plate)
42 Second table plate (table plate)
50... First angle adjustment mechanism (angle adjustment mechanism)
51 Arm 53 Link 54 Screw shaft (driving mechanism)
55 ... nut (driving mechanism)
56 motor (driving mechanism)
57 ... Bearing portion (connecting member)

Claims (2)

A vehicle seat comprising a retractable table plate,
It has a seat cushion that can be rotated up and down between a sitting position where the passenger can sit and a standing position,
The table plate is connected to the rotatable free end side of the seat cushion in a vertically rotatable state, and can be stacked and stored on the back side of the seat cushion opposite to the seating surface on which the occupant sits,
The table plate is configured to be rotatable in a direction in which the table plate is deployed with respect to the seat cushion in a state in which the seat cushion is rotated from the sitting position to the standing position ,
The table plate is configured to be able to adjust a rotation angle in a direction in which the table plate is deployed with respect to the seat cushion from a retracted position overlapping the back side of the seat cushion by the function of an angle adjustment mechanism,
The angle adjustment mechanism includes an arm projecting radially outward from the center of rotation of the table plate, a link having a tip end connected to the arm in a vertically rotatable state, and a base end of the link. A vehicle seat , comprising: a driving mechanism for pushing and pulling the link, and a connecting member for connecting the driving mechanism to a cushion frame of the seat cushion . A vehicle seat according to claim 1,
The vehicle seat , wherein the seat cushion is angle-adjustable between a sitting position and a standing position .

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