JP2013060089A - Vehicle seat apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a load to be imposed on a helper in a half-crouching position when lifting up or setting down a wheelchair user from/on a vehicle seat in order to move the wheelchair user from the vehicle seat to a wheel chair.SOLUTION: The vehicle seat apparatus 20 is configured to move between the inside 11 and the outside 12 of the vehicle cabin. The vehicle seat apparatus 20 includes a tilt mechanism 30 configured to increase the height of a part of a seat cushion 22 corresponding to the hip of a sitting occupant P, at a position outside 12 the vehicle cabin so that the occupant can be seated on the vehicle seat 21 or leave the seat. The tilt mechanism 30 is connected to an operation controller 55 to increase the height of the seat cushion 22 by use of the tilt mechanism 30 when the vehicle seat 21 moves to the outside 12 of the vehicle cabin.

Description

  The present invention relates to a vehicle seat device mounted on a vehicle such as an automobile. More specifically, the present invention relates to a vehicle seat device including a vehicle seat configured to be movable in a section outside the vehicle compartment from the vehicle compartment so that the wheelchair user with weak legs can easily get on and off the vehicle.

  Conventionally, in a vehicle seat mounted on a vehicle such as an automobile, even when a wheelchair user with weak legs sits or leaves the seat, the seating or leaving operation is designed to be advantageous. There are known vehicle seat devices (see, for example, Patent Document 1 and Patent Document 2). The vehicle seat device includes a vehicle seat that is seated as an occupant riding in the vehicle, and a moving mechanism that changes the position of the vehicle seat. The moving mechanism includes a seat rotating mechanism that changes the direction of the vehicle seat inside the vehicle compartment, a seat slide moving mechanism that slides the vehicle seat between the vehicle compartment and the outside of the vehicle compartment, and a vehicle seat that moves up and down outside the vehicle compartment. A seat lifting mechanism. According to this vehicle seat device, between the transfer position outside the vehicle compartment that can be transferred from the wheelchair to the vehicle seat or from the vehicle seat to the wheelchair, and the boarding position in the vehicle compartment that is in the riding state so that the vehicle can be driven, The vehicle seat can be moved.

Patent 4030331 JP-A-2005-247195

By the way, in the case of a seating operation in which the wheelchair user is transferred from the wheelchair to the vehicle seat, or in the case of a leaving operation in which the wheelchair user is transferred from the vehicle seat to the wheelchair, a person who assists the wheelchair user in transferring (Hereinafter referred to as “transfer assistant”). That is, when a wheelchair user transfers from a wheelchair to a vehicle seat, the transfer assistant needs to hold the wheelchair user until the wheelchair user sits on the vehicle seat. Conversely, when a wheelchair user transfers from a vehicle seat to a wheelchair, the transfer assistant needs to hold the wheelchair user until the wheelchair user sits on the wheelchair.
Then, the transfer assistant needs to hold the wheelchair user until the buttocks of the wheelchair user hits the seat of the vehicle seat or the seat of the wheelchair. For this reason, the transfer assistant is obliged to take the middle and lower back posture for the operation of lifting and lowering the wheelchair user. Therefore, the number of transfer assistants suffering from back pain is increasing.

  The present invention has been made in view of such circumstances, and a problem to be solved by the present invention is a vehicle seat device including a vehicle seat configured to be movable in a section outside the vehicle compartment from the vehicle compartment. When a wheelchair user is transferred from a wheelchair to a vehicle seat or when a wheelchair user is transferred from a vehicle seat to a wheelchair, a person who assists this transfer lifts it from the vehicle seat or holds it down to the vehicle seat This is to reduce the load on the middle and lower back posture.

In order to solve the above-described problems, the vehicle seat device according to the present invention employs the following means.
That is, the vehicle seat device according to the first aspect of the present invention is a vehicle seat device including a vehicle seat configured to be movable in a section outside the vehicle compartment from the vehicle compartment, and a passenger is seated on the vehicle seat. Seat surface raising means capable of increasing the height position of at least a portion of the seat cushion where the buttocks of the occupant seated hit the seat cushion at a position moved out of the vehicle compartment so that the user can leave the seat, and the vehicle seat is located outside the vehicle compartment. And a height operation means for performing an operation of increasing the height position of the seat cushion by the seat surface raising means when the vehicle seat moves.
According to the vehicle seat device according to the first aspect of the invention, since the seat surface raising means and the height operation means are provided, when the vehicle seat moves outside the vehicle compartment, the height operation means It is possible to increase the height position of at least the portion of the seat cushion where the occupant's buttocks hit the seat cushion at the position moved out of the vehicle compartment. Thus, when a wheelchair user sitting on a vehicle seat is transferred from a wheelchair or an occupant sitting on a wheelchair is transferred from the vehicle seat, the seated person is seated on the vehicle seat in a state where the position of the buttocks is raised. Therefore, it is possible to reduce the chances of the person who assists the transfer to take the middle and lower back posture in the lifting operation and the holding operation. Therefore, it is possible to reduce the load on the middle waist posture and reduce the back pain of the person assisting the transfer.

A vehicle seat device according to a second aspect of the invention is the vehicle seat device according to the first aspect of the invention, further comprising an operation input means that is operated and input by a user, wherein the height operation means is operated from the operation input means. Based on the input, an operation of increasing the height position of the seat cushion by the seat surface raising means is performed.
According to the vehicle seat device pertaining to the second aspect of the invention, the height operation means performs the operation of increasing the height position of the seat cushion by the seat surface raising means based on the operation input from the operation input means. The height position of the seat cushion can be appropriately adjusted by an operation input from the operation input means according to the physique of the person who assists or the physique of the person assisting the transfer. Thereby, the height position of the seat cushion can be adjusted to a desired height of the person assisting the transfer, and the convenience for the person assisting the transfer is enhanced.

A vehicle seat device according to a third aspect of the present invention is the vehicle seat device according to the first or second aspect of the invention, wherein the seat cushion is provided with a load change detecting means for detecting a load change of the weight of a seated occupant. The height operation means performs an operation of increasing the height position of the seat cushion by the seat surface raising means based on detection of a load change from the load change detection means.
According to the vehicle seat device pertaining to the third aspect of the invention, the height operation means performs an operation of increasing the height position of the seat cushion by the seat surface raising means based on the detection of the load change from the load change detection means. Therefore, by detecting this change in load, it is possible to detect whether the foot of the person to be transferred is landing or not, and automatically adjust the height position of the seat cushion according to the physique of the person to be transferred. Can do. As a result, the height position of the seat cushion can be automatically adjusted to a preferred height without requiring the operation of the person assisting the transfer, and the person assisting the transfer can easily move the seat cushion.

A vehicle seat device according to a fourth invention is the vehicle seat device according to any one of the first to third inventions, wherein the height operation means is an operation of the seat surface raising means by the height operation means. Storage means for storing the information, and based on the information stored in the storage means, the seat surface raising means performs an operation of increasing the height position of the seat cushion.
According to the vehicle seat device pertaining to the fourth aspect of the invention, the operation of increasing the height position of the seat cushion by the seat surface raising means is performed based on the information stored in the storage means. Therefore, the height position of the seat cushion can be automatically adjusted. This makes it possible to automatically and simply adjust the height position of the seat cushion when the person to be transferred matches the stored information, and to make it easier for the person who assists the transfer to transfer. .

According to the vehicle seat device pertaining to the first aspect of the present invention, it is possible to reduce the chances of the person who assists the transfer to take the middle waist posture in the lifting operation and the lowering operation, and to assist the transfer by reducing the load on the middle waist posture. The occurrence of low back pain can be reduced.
According to the vehicle seat device pertaining to the second invention, the height position of the seat cushion can be adjusted to the preferred height of the person assisting the transfer, and the convenience for the person assisting the transfer is enhanced.
According to the vehicle seat device pertaining to the third invention, the height position of the seat cushion can be automatically adjusted to a preferred height while eliminating the need for the operation of the person assisting the transfer. It can be made easy to transfer.
According to the vehicle seat device pertaining to the fourth aspect of the invention, the height position of the seat cushion can be automatically adjusted to a preferred height without the need for detection while eliminating the need for the operation of the person assisting the transfer, and assisting the transfer. It can be made easy to transfer to those who do.

It is a mimetic diagram showing a flow of movement operation of a vehicle seat. It is a side surface schematic diagram which shows before the seat surface raising operation | movement of a vehicle seat apparatus. It is a side surface schematic diagram which shows after the seat surface raising operation | movement of a vehicle seat apparatus. It is a side surface schematic diagram which shows the transfer from the vehicle seat of the seated person seated on a vehicle seat to a wheelchair in steps. It is a side surface schematic diagram which shows the transfer from the vehicle seat of the seated person sitting on the conventional vehicle seat to a wheelchair in steps. It is a modification of the tilt mechanism illustrated so that it can compare with FIG. 2 and FIG.

EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing the vehicle seat apparatus which concerns on this invention is demonstrated, referring drawings.
1 to 3 are diagrams schematically showing the vehicle seat device 20. In addition, (a)-(e) of FIG. 1 is a plane schematic diagram which shows the flow of the movement operation | movement of the vehicle seat 21. FIG. 2 and 3 are schematic side views of the vehicle seat device 20 in FIG.
A vehicle seat device 20 shown in FIGS. 1 to 3 is a seat for an automobile occupant mounted on an automobile 10 as a vehicle. As shown in FIGS. 2 and 3, the vehicle seat device 20 includes a vehicle seat 21 on which an occupant is seated, and a moving mechanism 50 for moving the vehicle seat 21. The vehicle seat device 20 is mounted as a passenger seat of the automobile 10 and is easy for a wheelchair user who has weak legs to get on and off. For this reason, as shown in FIG. 1, the vehicle seat 21 is configured to be movable in a section from the vehicle interior 11 inside the automobile 10 to the exterior 12 outside the automobile compartment 10. FIGS. 1A to 1E show a series of movement operations in which the vehicle seat 21 is moved from the vehicle interior 11 position to the vehicle exterior 12 position by the movement mechanism 50.

That is, a series of movement operations of the vehicle seat 21 shown in FIGS. 1A to 1E are performed by the moving mechanism 50 which is only partially illustrated. Although the illustration regarding the detailed structure is abbreviate | omitted, the moving mechanism 50 is attached to the vehicle body (not shown) of the above-mentioned motor vehicle 10, and supports the vehicle seat 21 so that a movement is possible. The moving mechanism 50 includes a rotating mechanism that changes the direction of the vehicle seat 21 in the vehicle interior 11, a slide moving mechanism that slides the vehicle seat 21 between the vehicle interior 11 and the vehicle exterior 12, An elevating mechanism (four-bar linkage mechanism 52) that elevates and lowers the vehicle seat 21 outdoors 12 is provided. In other words, the moving mechanism 50 rotates and moves the vehicle seat 21 by the rotation mechanism provided, slides the vehicle seat 21 by the slide movement mechanism provided, and the lifting mechanism (four-bar link) provided in the movement mechanism 50. The vehicle seat 21 is moved up and down by the mechanism 52).
The movement operation of the vehicle seat 21 by the movement mechanism 50 is performed by the operation controller 55. That is, the operation controller 55 is connected to the moving mechanism 50 including the various mechanisms described above (the rotating mechanism, the slide moving mechanism, and the lifting mechanism) in a controllable manner. Then, when an occupant (a seated person) or a transfer assistant operates the operation controller 55, an operation input is performed from the operation controller 55 to the moving mechanism 50. The movement mechanism 50 to which the operation input is performed as described above causes the vehicle seat 21 to move in the following series based on the operation input from the operation controller 55.

A series of movement operations of the vehicle seat 21 will be described with reference to (a) to (e) of FIG.
The vehicle seat 21 shown in FIG. 1A shows the vehicle seat 21 that is in the riding state position that is the 11 position in the vehicle compartment. On the other hand, the vehicle seat 21 shown in FIG. 1 (e) shows the vehicle seat 21 that is a boarding / alighting position that can be transferred to a wheelchair (not shown) that is 12 positions outside the vehicle compartment. In this way, in the arrangement order of (a) to (e) shown in FIG. 1, from the vehicle compartment 11 position as the boarding position to the vehicle exterior 12 position as the boarding / exiting position that can be transferred to a wheelchair (not shown), The operation | movement which moves the vehicle seat 21 is shown. In other words, the vehicle seat 21 is moved in the order of (e) to (a) from the position 12 outside the vehicle compartment where the wheelchair (not shown) can be transferred to the vehicle interior 11 position where the boarding position is obtained. It shows the operation to do.

  Specifically, FIG. 1A shows a vehicle seat 21 located in the vehicle compartment 11 that is in a boarding state. Reference numeral 15 denotes a center console, reference numeral 16 denotes a passenger seat door, and reference numeral 17 denotes a center pillar. On the other hand, FIG.1 (b) shows the vehicle seat 21 which performed 1st movement operation | movement. The vehicle seat 21 in FIG. 1B is rotated counterclockwise so as to face the outer side of the passenger seat door 16 as compared with the vehicle seat 21 in FIG. FIG.1 (c) shows the vehicle seat 21 which carried out 2nd movement operation | movement. The vehicle seat 21 in FIG. 1C is more outwardly directed toward the passenger seat door 16 until the seated occupant's leg faces the vehicle compartment exterior 12 as compared to the vehicle seat 21 in FIG. 1B. Is moving counterclockwise. Thus, the vehicle seat 21 that rotates counterclockwise is slid toward the vehicle compartment 12 along with the rotation. FIG.1 (d) shows the vehicle seat 21 which carried out 3rd movement operation | movement. The vehicle seat 21 in FIG. 1D slides from the vehicle interior 11 toward the vehicle exterior 12 as compared to the vehicle seat 21 in FIG. FIG.1 (e) shows the vehicle seat 21 located in the vehicle exterior 12 used as the boarding / alighting position which can be transferred to a wheelchair (not shown). The vehicle seat 21 in FIG. 1 (e) is in a position where it is moved down in the vehicle compartment 12 as compared with the vehicle seat 21 in FIG. 1 (d). In this way, the vehicle seat 21 that has moved down outside the vehicle compartment 12 is in a moved position so that the occupant can sit or leave. It should be noted that the position of the vehicle seat 21 that has been lowered so that the occupant can be seated or unseated is as shown in FIGS. 2 and 3, with the foot of the occupant (seater) P sitting on the vehicle seat 21. Is the position of the vehicle seat 21 that has moved down until it reaches the ground G.

Next, the raising operation (tilt up) of the vehicle seat 21 will be described with reference to FIGS. 2 and 3. FIG. 2 is a schematic side view of the vehicle seat 21 before the ascending operation in FIG. 1 (e). FIG. 2 is located at a normal riding position before the seat surface 221 is lifted. FIG. 3 is a schematic side view showing the state after the ascending operation of the seating surface 221 of the vehicle seat 21 in FIG. FIG. 3 is located at a transferable position after the seat surface 221 is lifted.
As shown in the figure, the vehicle seat 21 includes a seat cushion 22 that serves as a seat when seated, a seat back 23 that serves as a backrest when seated, and a headrest 24 that serves as a headrest when seated. 2 and FIG. 3 indicates an occupant seated on the seat cushion 22. 2 and 3 indicate the seating surface of the seat cushion 22.

The vehicle seat 21 described above includes a seat base 25 so as to be supported by the four-bar linkage mechanism 52. The seat base 25 supports the seat cushion 22 described above. The seat cushion 22 supports the seat back 23 and the headrest 24.
As shown in FIGS. 2 and 3, the vehicle seat 21 is supported by a four-bar linkage mechanism 52 via a seat base 25 that supports the vehicle seat 21 described above. The four-bar linkage mechanism 52 constitutes a lifting mechanism for the moving mechanism 50. It should be noted that the four-bar linkage mechanism 52 that constitutes the lifting mechanism of the moving mechanism 50 is configured to have a lifting function that lowers the vehicle seat 21. For this reason, as shown in FIGS. 2 and 3, the four-bar linkage mechanism 52 that constitutes the lifting mechanism lowers the vehicle seat 21 until the feet of the occupant P sitting on the vehicle seat 21 land on the ground G. Yes.

Incidentally, a tilt mechanism 30 is provided between the seat base 25 and the seat cushion 22 described above. The tilt mechanism 30 functions to raise and lower the rear portion of the seat cushion 22, as shown in FIGS. The tilt mechanism 30 generally includes a rotation shaft support portion 31 provided at the front portion of the seat cushion 22 and an elevating drive portion 33 provided at the rear portion of the seat cushion 22.
A rotation shaft support portion 31 disposed in the front portion of the seat cushion 22 allows the seat cushion 22 to rotate with respect to the seat base 25. The elevating drive unit 33 includes a drive motor 35 that rotationally drives, a pinion gear 36 that outputs the rotational driving force of the drive motor 35, and a driven gear 37 that meshes with the pinion gear 36. The drive motor 35 is supported on the seat base 25. The pinion gear 36 is attached to the rotation shaft of the drive motor 35. For this reason, the pinion gear 36 rotates according to the rotational drive of the drive motor 35. The driven gear 37 is rotatably supported by the seat base 25. The driven gear 37 meshes with the pinion gear 36, and rotates by receiving the rotational driving force of the meshed pinion gear 36.

Here, the driven gear 37 is provided with a connecting link portion 38 extending along the rotational radial direction. The distal end of the connection link portion 38 is connected to the seat cushion 22 so as to be fitted into a guide slit 39 provided in the seat cushion 22. As a result, when the connecting link portion 38 receives the rotational drive of the pinion gear 36 and rotates integrally with the driven gear 37, the tip of the connecting link portion 38 functions to move up and down the seat cushion 22 while relatively moving within the guide slit 39. It will be. In the seat cushion 22, the portion to which the connecting link portion 38 is connected and supported to be lifted / lowered corresponds to the portion that the seated passenger's buttocks hit. Here, the tilt mechanism 30 corresponds to the seat surface raising means according to the present invention. That is, the tilt mechanism 30 sets the height position of the portion where the occupant's buttocks hit the seat so that the above-described occupant can be seated or unattended at the position moved to the vehicle exterior 12 (FIG. 1 (e)). It functions to raise the seating surface 221 of the seat cushion 22 so as to be raised.
The seat cushion 22 is raised and lowered by the tilt mechanism 30 by an operation input from the operation controller 55 described above. Note that the operation controller 55 can input an operation for raising and lowering the seat cushion 22 with respect to the tilt mechanism 30 only at a position where the occupant moves to the vehicle exterior 12 so that the occupant can be seated or removed as shown in FIG. It has become.

  Here, when the height position of the seat cushion 22 is the normal riding position shown in FIG. 2, an operation input is made to the operation controller 55 so as to increase the height position of the seat cushion 22. Then, the tilt mechanism 30 is driven based on the operation input of the operation controller 55. Specifically, the tilt mechanism 30 rotates the pinion gear 36 by the drive motor 35 and rotates the driven gear 37 that meshes with the pinion gear 36. As a result, the seat surface 221 located at the rear portion of the seat cushion 22 connected to the connection link portion 38 is raised (tilted up) so as to shift from the state shown in FIG. 2 to the state shown in FIG. The tilt-up of the seat cushion 22 corresponds to the seat surface raising operation according to the present invention. The seat back 23 of the vehicle seat 21 is connected to the seat cushion 22. For this reason, the seat back 23 of the vehicle seat 21 is also raised and lowered in conjunction with the tilt up and tilt down of the seat cushion 22.

On the contrary, when the height position of the seat cushion 22 is the transferable position shown in FIG. 3, an operation input is made to the operation controller 55 so as to lower the height position of the seat cushion 22. Then, the tilt mechanism 30 is driven based on the operation input of the operation controller 55. Specifically, the tilt mechanism 30 rotates the pinion gear 36 by the drive motor 35 and rotates the driven gear 37 that meshes with the pinion gear 36. Thereby, the seating surface 221 positioned at the rear portion of the seat cushion 22 connected to the connection link portion 38 is lowered (tilted down) so as to shift from the state shown in FIG. 3 to the state shown in FIG. The tilt down of the seat cushion 22 corresponds to the seat surface lowering operation according to the present invention. The operation controller 55 corresponds to a height operation unit according to the present invention for performing an operation of increasing the height position of the seat cushion by the tilt mechanism 30 (seat surface raising unit). Furthermore, the operation controller 55 corresponds to an operation input unit according to the present invention that is input by an occupant serving as a user.
The operation signal input by the operation controller 55 is transmitted to a control controller (not shown) that controls the tilt mechanism 30 described above. Here, the control controller that has received the detection signal performs an operation on the tilt mechanism 30 to increase or decrease the height position of the seat cushion 22 based on the content of the detection signal.

  According to the vehicle seat device 20 of the above-described embodiment, the following operational effects can be achieved. FIGS. 4A to 4D are schematic side views showing stepwise transfer of a passenger (seat) P seated on a vehicle seat 21 according to an embodiment of the present invention from the vehicle seat 21 to a wheelchair. is there. On the other hand, FIGS. 5A to 5D are schematic side views showing stepwise transfer of the occupant (seater) P sitting on the conventional vehicle seat 21z from the vehicle seat 21z to the wheelchair. 4 and 5, illustration regarding a transfer assistant (for example, a caregiver) for assisting the transfer when the vehicle seats 21 and 21z are transferred to the wheelchair is omitted. Further, since the conventional vehicle seat device 20z shown in FIG. 5 is configured in the same manner as the vehicle seat device 20 according to the embodiment of the present invention shown in FIG. 4, the configuration corresponding to the vehicle seat device 20 shown in FIG. Is indicated by adding “z” to the end of the reference numeral attached to the vehicle seat device 20 described above.

  When an occupant (sitting person) P seated on the vehicle seat 21 of the vehicle seat device 20 moves from the vehicle seat 21 to a wheelchair (not shown), the following transfer operation is performed stepwise. . A vehicle seat 21 shown in FIG. 4 (a) is a vehicle seat 21 located outside the vehicle compartment 12 that is a boarding / alighting position that can be transferred to the wheelchair shown in FIG. 1 (e), and the seat surface shown in FIG. It is the vehicle seat 21 before the lifting operation of 221. At this time, the foot of the occupant P has landed on the ground G. For this reason, the foot of the occupant P is slightly landing on the ground G with a weight. In the vehicle seat 21 shown in FIG. 4B, the seating surface 221 located at the rear portion of the seat cushion 22 is raised (tilted up) by the tilt mechanism 30 described above. At this time, the foot of the occupant P is landed on the ground G over almost half of his weight. In the vehicle seat 21 shown in FIG. 4C, the seating surface 221 located at the rear portion of the seat cushion 22 is further raised (tilted up) by the tilt mechanism 30 described above until the waist of the occupant P floats. It has become. At this time, the foot of the occupant P is landing on the ground G with most of his weight.

Here, when a transfer assistant (not shown) lifts up the occupant P seated on the seat cushion 22 of the vehicle seat 21, it is as shown in FIG. That is, the occupant P lifted by the transfer assistant can float from the seat cushion 22 (seat surface 221) of the vehicle seat 21 and transfer it to a wheelchair (not shown) near the vehicle seat 21.
At this time, as shown in (c) of FIG. 4, the foot of the occupant P is landed on the ground G with most of his weight. For this reason, the lifting force of the passenger P by the transfer assistant is small. Further, as shown in FIG. 4C, the occupant P is in a forward leaning posture, so that the lifting force of the occupant P by the transfer assistant is small. Further, as shown in FIG. 4C, the occupant P is in a posture close to rising. For this reason, since the position of the center of gravity of the occupant P is high, the lifting force of the occupant P by the transfer assistant is small.
On the contrary, when the occupant P is transferred from the wheelchair (not shown) to the vehicle seat 21, a stepwise transfer operation opposite to the above description is performed. That is, when the occupant (seater) P sitting on the vehicle seat 21 is transferred to a wheelchair (not shown), the transfer assistant can lift the occupant P only in the case shown in FIG. It will be good.

  By the way, when the occupant (sitting person) P seated on the vehicle seat 21z of the conventional vehicle seat device 20z moves from the vehicle seat 21z to a wheelchair (not shown), the following transfer operation is performed in stages. It becomes. The conventional vehicle seat device 20z is not provided with the tilt mechanism 30 that raises (tilts up) the seating surface 221z located at the rear portion of the seat cushion 22z. For this reason, as shown to (a)-(d) of FIG. 5, the height position of the seating surface 221z located in the rear part of the seat cushion 22z is a substantially constant position. For this reason, in order for a transfer assistant (not shown) to lift the passenger P seated on the seat cushion 22z of the vehicle seat 21z, the passenger P in the state shown in FIG. (C) and (d) in FIG. Here, since the state shown in FIG. 5A is the state shown in FIG. 4A described above, the foot of the occupant P applies only a small weight to the ground G. For this reason, the lifting force of the passenger P by the transfer assistant increases. Moreover, as shown to (a) of FIG. 5, since the passenger | crew P is a back leaning attitude | position, the lifting force of the passenger | crew P by a transfer assistant will become large. Moreover, as shown to (a) of FIG. 5, the passenger | crew P has become the attitude | position satisfactorily seated. For this reason, since the gravity center position of the passenger | crew P is low, the lifting force of the passenger | crew P by a transfer assistant will become large.

2 and 3, the vehicle seat device 20 includes the tilt mechanism 30 and the operation controller 55. Therefore, when the vehicle seat 21 moves to the vehicle exterior 12, the vehicle seat 21 moves. The operation controller 55 can increase the height position of the portion of the seat cushion 22 where the occupant's buttocks hit the seat cushion 22 at the position moved to the outside of the vehicle compartment 12. As a result, when the seated person is transferred from the wheelchair to the vehicle seat 21 or when the seated person is transferred from the vehicle seat 21 to the wheelchair, the seated person is seated on the vehicle seat 21 in a state where the buttocks position is raised. Therefore, it is possible to reduce the load on the middle and lower back posture in the lifting operation and the holding operation of the transfer assistant, and to reduce the occurrence of back pain in the person who assists the transfer.
Further, according to the vehicle seat device 20 described above, the operation controller 55 performs an operation of increasing the height position of the seat cushion 22 by the tilt mechanism 30 based on an operation input from the operation controller 55, so that The height position of the seat cushion 22 can be appropriately adjusted by an operation input from the operation controller 55 in accordance with the physique and the physique of the person assisting the transfer. Accordingly, the height position of the seat cushion 22 can be adjusted to a desired height of the transfer assistant, and convenience for the transfer assistant is enhanced.

In addition, in the vehicle seat apparatus which concerns on this invention, it is not limited to the vehicle seat apparatus 20 of above-described embodiment, You may make it comprise a part suitably changed as follows. Note that illustrations in the following other embodiments are omitted.
That is, in the vehicle seat device 20 described above, a seating sensor (not shown) may be provided on the seating surface 221 portion of the seat cushion 22. Examples of the seating sensor include an appropriate pressure sensor that detects a change in the weight of the seated passenger P. That is, this seating sensor corresponds to the load change detecting means according to the present invention. The seating sensor transmits a detection signal to a control controller (not shown) that controls the tilt mechanism 30 based on a change in the weight load of the occupant P seated on the seat cushion 22. Here, the control controller that has received the detection signal performs an operation on the tilt mechanism 30 to increase or decrease the height position of the seat cushion 22 based on the content of the detection signal.
In addition, since the passenger | crew's P leg floats from the ground G in the seat cushion 22 of the area of (b)-(d) of FIG. 1, the weight of the seated person concerning this seat cushion 22 is seated person The total weight of On the other hand, in the vehicle seat 21 in the state shown in FIG. 1 (e), the foot of the occupant P is landed on the ground G. Therefore, the weight of the seated person on the seat cushion 22 is The weight is slightly decreased from the total weight of the body. For this reason, it is possible to easily detect a change in the weight of the occupant P using the seating sensor.

Also, as described above with reference to FIGS. 4A, 4B, and 4C, the height position of the seat cushion 22 by the tilt mechanism 30 (FIGS. 4A, 4B, and 4C). When c)) changes, the weight applied to the ground G of the foot of the occupant P also changes. Accordingly, when the height position of the seat cushion 22 ((a), (b), (c) in FIG. 4) is changed, the weight of the passenger P applied to the seat cushion 22 is also changed. Detection of a change in the weight of P is easily performed. Specifically, a change in the weight load of the occupant P can be detected, and the stepwise tilt mechanism 30 can be controlled according to the height position of the seat cushion 22.
When a seating sensor (not shown) is provided on the seating surface 221 of the seat cushion 22 as described above, the controller (not shown) uses the tilt mechanism 30 based on detection of a load change from the seating sensor. An operation for increasing the height position of the seat cushion 22 is performed. As a result, it is possible to detect whether or not the foot of the occupant P is landing by detecting this load change, and automatically adjusting the height position of the seat cushion 22 according to the physique of the occupant P. Can do. Accordingly, the height position of the seat cushion 22 can be automatically adjusted to a preferred height without requiring the operation of the transfer assistant, and the transfer assistant can easily transfer the seat cushion 22.

Further, in the above-described control controller (not shown), a storage memory may be provided so as to store past operations of the tilt mechanism 30 performed by the control controller. This storage memory corresponds to the storage means according to the present invention. When the storage mechanism is provided in the tilt mechanism 30 as described above, an operation for increasing the height position of the seat cushion 22 by the tilt mechanism 30 can be performed based on the information stored in the storage memory. When the operation of increasing the height position of the seat cushion 22 by the tilt mechanism 30 is performed based on the information stored in the storage memory in this way, the control based on the operation controller 55 and the seating sensor (not shown) as described above is performed. This can be omitted, and the height position of the seat cushion 22 can be automatically adjusted. by this,
When the person to be transferred matches the stored information, the adjustment of the height position of the seat cushion 22 can be automatically and simplified, and the transfer assistant can easily make the transfer.

Further, the tilt mechanism 30 of the vehicle seat device 20 described above may be configured as a tilt mechanism 30A shown in FIG. That is, FIG. 6A is a schematic side view showing the tilt mechanism 30A, which is a modification, before the seat surface raising operation. FIG. 6B is a schematic side view illustrating the tilt mechanism 30A as a modified example after the seat surface raising operation. The tilt mechanism 30A as a modification is different from the tilt mechanism 30 of the above-described embodiment in that the rotation shaft support portion 31A has a structure having a link. In addition, about the location which becomes the same structure as the tilt mechanism 30 of above-described embodiment, description is abbreviate | omitted using the same code | symbol.
That is, the rotation shaft support portion 31 </ b> A has a link structure including a rotation shaft support portion main body 321 and a shaft support link portion 322 that is supported by the rotation shaft support portion main body 321. The rotation shaft support portion main body 321 is configured in the same manner as the rotation shaft support portion 31 of the above-described embodiment. Further, the shaft support link portion 322 is formed in a rod shape, the base end is rotatably connected to the rotation shaft support portion main body 321, and the distal end is also rotatably connected to the seat cushion 22. Further, the distal end of the connecting link portion 38A of the elevating driving portion 33A is rotatably connected to the seat cushion 22 without being inserted into the guide slit 39 and relative to the seat cushion 22. Even when the tilt mechanism 30A is configured in this manner, the rear portion of the seat cushion 22 functions as shown in FIGS. 6A and 6B, as in the above-described embodiment.
Further, in the vehicle seat device 20 described above, the seat cushion 22 and the seat back 23 are integrally interlocked as illustrated, but only the seat cushion 22 is secured with the seat back 23 fixed. It may be configured to move.

10 Automobile (vehicle)
DESCRIPTION OF SYMBOLS 11 Vehicle interior 12 Vehicle exterior 15 Center console 16 Passenger seat door 17 Center pillar 20 Vehicle seat apparatus 21 Vehicle seat 22 Seat cushion 221 Seat surface 23 Seat back 24 Headrest 25 Seat base 30, 30A Tilt mechanism (seat surface raising means)
31, 31A Rotating shaft support portion 321 Rotating shaft support portion body 322 Shaft support link portion 33, 33A Lifting drive portion 35 Drive motor 36 Pinion gear 37 Driven gear 38, 38A Connection link portion 39 Guide slit 50 Moving mechanism 52 Four-bar link mechanism 55 Operation controller ( Height operation means, operation input means)
G Ground P Crew

Claims (4)

A vehicle seat device comprising a vehicle seat configured to be movable in a section outside the vehicle compartment from the vehicle compartment,
A seat surface raising means capable of increasing a height position of at least a portion of the seat cushion where the seat of the occupant to be seated hits at a position where the occupant is seated on or off the vehicle seat so that the occupant can sit or leave the vehicle seat;
And a height operation means for performing an operation of increasing the height position of the seat cushion by the seat surface raising means when the vehicle seat moves outside the vehicle compartment. Vehicle seat device. The vehicle seat device according to claim 1,
Provided with operation input means for operation input by the user,
The height operation means performs an operation of increasing the height position of the seat cushion by the seat surface raising means based on an operation input from the operation input means. The vehicle seat device according to claim 1 or 2,
The seat cushion is provided with a load change detecting means for detecting a load change in the weight of a seated occupant,
The height operation means performs an operation of increasing the height position of the seat cushion by the seat surface raising means based on detection of a load change from the load change detection means. The vehicle seat device according to any one of claims 1 to 3,
The height operation means includes storage means for storing the operation of the seat surface raising means by the height operation means, and the height of the seat cushion by the seat surface raising means is based on information stored in the storage means. A vehicle seat device that performs an operation to raise the position.

Images