JP2019189077A - Vehicle seat - Google Patents

Abstract

To prevent a head part of a seated person from coming into contact with a ceiling part of a vehicle when a vehicle seat is moved between the inside of a cabin and the outside of the cabin.SOLUTION: A vehicle seat comprises: a seat main body 110; a drive mechanism 120; a seating sensor 130; and a head part detection sensor 140. The seat main body 110 comprises a headrest 113 and is configured to be movable between the inside a cabin and the outside of the cabin. The drive mechanism 120 moves the seat main body 110. The seating sensor 130 detects whether or not there is a seated person in the seat main body 110. The head part detection sensor 140 is provided to the headrest 113 and detects a contact/non-contact state of a head part of a seated person with the headrest 113. When the head part sensor 140 detects that a head part is not in contact with the headrest 113 while a seated person is detected by the seating sensor 130, at least one of moving from the inside of the cabin to the outside thereof and moving from the outside of the cabin to the inside thereof, of the seat main body 110, is stopped.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle seat.

  As a prior document disclosing the configuration of the vehicle seat, there is JP 2013-18341 A (Patent Document 1). The vehicle seat described in Patent Document 1 is configured to be movable between the passenger compartment and the exterior of the passenger compartment, and includes a seating sensor that detects the presence or absence of a seated person in the seat body.

  In the vehicle seat described in Patent Document 1, when the vehicle seat is moved between the vehicle interior and the exterior of the vehicle interior, the reclining mechanism operates in a direction that tilts the seat back of the seat body at a certain angle, thereby It is intended to avoid interference between the person's head and the ceiling of the vehicle.

JP 2013-18341 A

  Even when the reclining mechanism tilts the seat back of the seat body at a certain angle, the head of the seated person may be separated from the seat body. In that case, the seated person's head may come into contact with the ceiling of the vehicle.

  The present invention has been made in view of the above-described problems, and prevents the seated person's head from coming into contact with the ceiling of the vehicle when the vehicle seat is moved between the vehicle interior and the exterior of the vehicle interior. An object of the present invention is to provide a vehicle seat.

  A vehicle seat according to the present invention includes a seat body, a drive mechanism, a seating sensor, and a head detection sensor. The seat body has a headrest and is configured to be movable between the passenger compartment and the exterior of the passenger compartment. The drive mechanism moves the seat body. The seating sensor detects the presence or absence of a seated person on the seat body. The head detection sensor is provided in the headrest, and detects the contact / separation state of the seated person's head to the headrest. When the head detection sensor detects that the head is separated from the headrest in the state where the seating sensor detects the seated person, the seat body moves from the vehicle interior to the outside of the vehicle compartment and from the outside of the vehicle compartment. At least one of the movements into the passenger compartment is stopped.

  In one embodiment of the present invention, the vehicle seat further includes a notification mechanism. When the head detection sensor detects that the head is separated from the headrest during at least one of the movement of the seat body from the vehicle interior to the exterior of the vehicle interior and the movement of the seat body from the exterior of the vehicle interior to the vehicle interior. The notification mechanism notifies a warning to the seated person.

  In one form of this invention, a seat main body further has a seat cushion and a seat back. The vehicle seat further includes a reclining mechanism capable of adjusting the inclination angle of the seat back with respect to the seat cushion.

  In one form of the present invention, the seat main body has a seat main body when the head detection sensor detects that the head is away from the headrest in a state where the seating sensor detects a seated person. The seat back is tilted in a direction away from the seat cushion by the reclining mechanism at least before the vehicle moves from the vehicle interior to the vehicle interior and before the seat body moves from the vehicle interior to the vehicle interior.

  In one embodiment of the present invention, the seat body further includes a footrest. The vehicle seat further includes a foot detection sensor. The foot detection sensor is provided on the footrest, and detects the contact / separation state of the seated person's foot with the footrest. When the seat detection sensor detects that the foot is separated from the footrest in the state where the seating sensor detects the seated person, the seat body moves from the vehicle interior to the outside of the vehicle compartment and from the outside of the vehicle compartment. At least one of the movements into the passenger compartment is stopped.

  ADVANTAGE OF THE INVENTION According to this invention, when moving a vehicle seat between a vehicle interior and the vehicle exterior, it can prevent that a seated person's head contacts a ceiling part of a vehicle.

It is a side view showing the appearance of the vehicular seat concerning one embodiment of the present invention. It is the top view which looked at the vehicle seat of FIG. 1 from the arrow II direction. It is a side view which shows the structure of the outer / inner slide mechanism and the raising / lowering mechanism of the drive mechanism with which the vehicle seat which concerns on one Embodiment of this invention is provided. It is a side view which shows the state which the vehicle seat which concerns on one Embodiment of this invention slid out of the vehicle interior by the drive of the outer / inner slide mechanism. It is a side view which shows the state which the vehicle seat which concerns on one Embodiment of this invention fell by the drive of the raising / lowering mechanism. In the vehicle seat which concerns on one Embodiment of this invention, it is a time chart showing operation | movement of the vehicle seat when a seated person's head is always in contact with the headrest of a seat main body. In the vehicle seat which concerns on one Embodiment of this invention, it is a top view which shows the state which the seat main body in which the seated person has seated exists in the origin position in a vehicle interior. 1 is a plan view showing a state in which a seat body on which a seated person is seated is rotated counterclockwise by a certain angle in a vehicle interior in a vehicle seat according to an embodiment of the present invention. In the vehicle seat according to the embodiment of the present invention, the seat body on which the seated person is seated is a plan view showing a state in which the seat body is moving forward while rotating counterclockwise. In the vehicle seat which concerns on one Embodiment of this invention, it is a top view which shows the state which the seat main body in which the seated person has seated rotated about 90 degrees and faced the entrance / exit side. In the vehicle seat according to the embodiment of the present invention, the seat body on which a seated person is seated is a plan view showing a state in which the seat body is moving in the vehicle exterior direction. In the vehicle seat according to the embodiment of the present invention, the seat body on which the seated person is seated is a plan view showing a state where the seat body is moving horizontally outward and descending. In the vehicle seat which concerns on one Embodiment of this invention, it is a top view which shows the state which the seat main body in which the seated person has reached | attained the boarding / alighting position out of a vehicle interior. It is a figure which shows the state which the seat main body is moving between the vehicle interior and the vehicle exterior, without a seated person's head contacting the headrest of a seat main body. It is a figure which shows the locus | trajectory of a head when the seated person of a seat main body raises the body from the seat back from the waist. It is a figure which shows the locus | trajectory of a head when the seated person of a seat main body raises the body from the seat back | bag from the diaphragm vicinity. It is a flowchart which shows operation | movement of the vehicle seat which concerns on one Embodiment of this invention. It is a time chart showing operation | movement of the vehicle seat which concerns on one Embodiment of this invention.

  Hereinafter, a vehicle seat according to an embodiment of the present invention will be described with reference to the drawings. In the following description, the same or corresponding parts in the drawings are denoted by the same reference numerals, and the description thereof will not be repeated.

  FIG. 1 is a side view showing an appearance of a vehicle seat according to an embodiment of the present invention. FIG. 2 is a plan view of the vehicle seat of FIG. 1 viewed from the direction of arrow II. In FIG. 2, only a seat cushion, a footrest, and a foot detection sensor, which will be described later, are illustrated.

  As shown in FIGS. 1 and 2, the vehicle seat 100 according to an embodiment of the present invention includes a seat body 110, a drive mechanism 120, a seating sensor 130, and a head detection sensor 140. In the present embodiment, the vehicle seat 100 further includes a foot detection sensor 150, a reclining mechanism 160, and a notification mechanism 170. Note that each of the foot detection sensor 150, the reclining mechanism 160, and the notification mechanism 170 is not necessarily provided.

  The seat body 110 includes a seat cushion 111, a seat back 112, and a headrest 113. In the present embodiment, the seat body 110 further includes a footrest 114 and an armrest 115. Note that each of the footrest 114 and the armrest 115 is not necessarily provided. The seat body 110 is configured to be movable between the vehicle interior and the exterior of the vehicle interior.

  The drive mechanism 120 moves the sheet main body 110. The drive mechanism 120 includes a front / rear slide mechanism (not shown) installed on the vehicle floor, a rotation mechanism (not shown) installed on the front / rear slide mechanism, an elevating mechanism and an outer / internal slide mechanism installed on the rotation mechanism. ing. A seat cushion 111 is installed on the outer / inner slide mechanism.

  The front / rear slide mechanism is a mechanism for moving the seat body 110 in the vehicle front-rear direction in the vehicle interior. The rotation mechanism is a mechanism that horizontally rotates the seat body 110 between a seating position facing forward of the vehicle and a lateral position facing the entrance / exit. The lifting mechanism is a mechanism that lifts and lowers the seat body 110 outside the passenger compartment. The outer / inner slide mechanism is a mechanism that moves the seat body 110 toward the outside of the vehicle interior or toward the vehicle interior.

  FIG. 3 is a side view showing a configuration of an outer / inner slide mechanism and an elevating mechanism of the drive mechanism provided in the vehicle seat according to the embodiment of the present invention. As shown in FIG. 3, the outer / inner slide mechanism 123 of the drive mechanism 120 included in the vehicle seat 100 according to the embodiment of the present invention is engaged with a slide rail 121 that supports the seat cushion 111, and the drive motor Built in.

  The elevating mechanism includes a lateral slide mechanism 124 and a four-bar linkage mechanism 125 that receives the slide operation of the lateral slide mechanism 124 and rotates in the vertical direction. The lateral slide mechanism 124 is engaged with a slide rail 122 installed on the rotation mechanism and incorporates a drive motor. The four-bar linkage mechanism 125 is engaged with the guide roller 126.

  FIG. 4 is a side view showing a state in which the vehicle seat according to the embodiment of the present invention is slid out of the passenger compartment by driving the outer / inner slide mechanism. As shown in FIG. 4, when the drive motor of the outer / inner slide mechanism is driven, the slide rail 121 slides outward in the passenger compartment. As a result, the seat body 110 moves out of the passenger compartment.

  FIG. 5 is a side view showing a state in which the vehicle seat according to the embodiment of the present invention is lowered by driving the lifting mechanism. As shown in FIG. 5, when the drive motor of the horizontal slide mechanism 124 of the elevating mechanism is driven, the four-link mechanism 125 is moved as the horizontal slide mechanism 124 slides along the slide rail 122 toward the outside of the passenger compartment. While moving in contact with the guide roller 126, it moves outward from the passenger compartment. As a result, the seat body 110 is lowered outside the passenger compartment.

  The seat sensor 130 detects the presence or absence of a seated person on the seat body 110. The seating sensor 130 is composed of a membrane switch and is provided on the seat cushion 111. The seat cushion 111 is also provided with an operation switch for operating the vehicle seat 100.

  The head detection sensor 140 detects the contact / separation state of the head of the seated person to the headrest 113. The head detection sensor 140 is provided on the headrest 113. In the present embodiment, the head detection sensor 140 is composed of a capacitance sensor. However, the head detection sensor 140 is not limited to a capacitance sensor, and the headrest 113 is connected to the headrest 113 of the seated person's head. Any sensor that can detect the separated state may be used.

  The foot detection sensor 150 detects the contact / separation state of the foot of the seated person to the footrest 114. The foot detection sensor 150 is provided on the footrest 114. In the present embodiment, the foot detection sensor 150 is configured by a membrane switch. However, the foot detection sensor 150 is not limited to the membrane switch, and detects a contact / separation state of the footrest 114 of the seated person's foot. Any sensor is possible.

  The reclining mechanism 160 is provided on the seat body 110. The reclining mechanism 160 is configured to be able to adjust the inclination angle of the seat back 112 with respect to the seat cushion 111. The reclining mechanism 160 has a built-in reclining motor that can control an inclination angle of the seat back 112 with respect to the seat cushion 111.

  The notification mechanism 170 is provided on the armrest 115. The position where the notification mechanism 170 is provided is not limited to the armrest 115, and may be a position where a warning can be notified to a seated person. In this embodiment, the notification mechanism 170 is configured by a speaker that emits a warning sound. However, the notification mechanism 170 is not limited to the speaker, and may be configured by a monitor that displays a warning, and includes a speaker. A monitor may be used.

  The detection signals of the seating sensor 130, the head detection sensor 140, and the foot detection sensor 150 are input to the vehicle control device. Each of drive mechanism 120, reclining mechanism 160, and notification mechanism 170 operates in response to an output signal from the control device.

  Here, the operation of the vehicle seat 100 when the seated person's head is always in contact with the headrest 113 of the seat body 110 will be described.

  FIG. 6 is a time chart showing the operation of the vehicle seat when the seated person's head is always in contact with the headrest of the seat body in the vehicle seat according to the embodiment of the present invention. FIG. 7 is a plan view showing a state in which the seat body on which the seated person is seated is at the origin position in the vehicle interior in the vehicle seat according to the embodiment of the present invention.

  As shown in FIGS. 6 and 7, in the state where the seat body 110 on which the seated person is seated is at the origin position in the passenger compartment (timing I), the output of each mechanism is stopped. The seating sensor 130 detects a seated person, and a detection signal of the seating sensor 130 is input to the vehicle control device.

  In order to move the seat body 110 from this state to the boarding / exiting position outside the passenger compartment, the operation switch is operated after the door Dr of the vehicle C is opened. When the operation switch is operated, a signal is output from the control device to the rotation mechanism, and the rotation mechanism operates in a direction to rotate the sheet main body 110 counterclockwise.

  FIG. 8 is a plan view showing a state in which the seat body on which a seated person is seated is rotated counterclockwise by a certain angle in the vehicle seat according to the embodiment of the present invention.

  As shown in FIGS. 6 and 8, when the seat main body 110 is rotated to the left by a certain angle (timing II) in the vehicle interior, a signal is output from the control device to the front / rear slide mechanism. Operates to slide forward. Thus, the operation | movement which the seat main body 110 slides to a vehicle interior front is called a front slide.

  FIG. 9 is a plan view showing a state in which the seat body on which a seated person is seated is moving forward while rotating counterclockwise in the vehicle interior in the vehicle seat according to the embodiment of the present invention.

  As shown in FIGS. 6 and 9, the seat body 110 rotates counterclockwise while moving forward from the origin position by operating the front / rear slide mechanism while the operation of the rotation mechanism continues. In this manner, an operation in which the seat body 110 slides while rotating is referred to as a rotation slide. Thereby, interference with the seat main body 110 and the center pillar P of the vehicle C is avoided.

  Further, while the seat body 110 is rotating and sliding, a signal is output from the control device to the lateral slide mechanism 124 for a certain period of time, and the lateral slide mechanism 124 moves forward on the slide rail 122 by a certain amount so Is released.

  FIG. 10 is a plan view showing a state in which the seat body on which the seated person is seated rotates about 90 ° and faces the entrance / exit in the vehicle seat according to the embodiment of the present invention.

  As shown in FIGS. 6 and 10, when the seat main body 110 rotates about 90 ° and faces the entrance / exit, a signal is output from the control device to the outer / inner slide mechanism during the rotation slide (timing III). . As a result, the outer / inner slide mechanism operates, and the seat body 110 slides outward from the passenger compartment as shown in FIG. That is, the seat body 110 is shaken out of the passenger compartment from the entrance. Thus, the operation | movement which the seat main body 110 slides to a vehicle interior exterior direction is called an outer slide.

  After the outer slide is started, each of the rotation mechanism and the outer / inner slide mechanism is stopped to complete the rotation slide (timing IV). In this state, the seat body 110 is rotated about 100 ° from the vehicle forward position.

  FIG. 11 is a plan view showing a state in which the seat body on which a seated person is seated is moving in the vehicle exterior direction in the vehicle seat according to the embodiment of the present invention.

  As shown in FIGS. 6 and 11, during the outer slide, a signal is output from the control device to the lateral slide mechanism 124 (timing V). As a result, the lateral slide mechanism 124 slides the four-bar linkage mechanism 125 outward from the passenger compartment. As a result, as shown in FIG. 5, the four-bar linkage mechanism 125 rotates downward, and the seat main body 110 moves horizontally while moving outward from the passenger compartment.

  FIG. 12 is a plan view showing a state in which the seat body on which a seated person is seated is moving horizontally outward while being lowered in the vehicle seat according to the embodiment of the present invention.

  As shown in FIGS. 6 and 12, after the lowering of the seat main body 110 is started, the lateral slide mechanism 124 stops and the outer slide is completed (timing VI).

  FIG. 13 is a plan view showing a state in which the seat body on which a seated person is seated has reached the boarding / exiting position outside the passenger compartment in the vehicle seat according to the embodiment of the present invention.

  As shown in FIGS. 6 and 13, the lifting mechanism stops when the seat main body 110 reaches the boarding / exiting position outside the passenger compartment (timing VII). By the series of operations described above, the seat main body 110 moves from the origin position in the vehicle interior to the boarding / exiting position outside the vehicle interior. When the seat body 110 on which the seated person is seated is moved from the getting-on / off position to the vehicle interior, the vehicle seat 100 is operated in reverse to the above-described series of operations by operating the operation switch.

  Here, the case where the seat body 110 moves between the vehicle interior and the exterior of the vehicle interior in a state where the seated person's head is not in contact with the headrest 113 of the seat body 110 will be described.

  FIG. 14 is a diagram illustrating a state in which the seat body is moving between the vehicle interior and the exterior of the vehicle interior without the seated person's head contacting the headrest of the seat body. As shown in FIG. 14, when the head 2 of the seated person 1 is not in contact with the headrest 113 of the seat body 110, the head 2 of the seated person 1 may come into contact with the ceiling portion of the vehicle C.

  A specific example of the manner in which the head 2 of the seated person 1 contacts the ceiling of the vehicle C will be described below. FIG. 15 is a diagram showing a trajectory of the head when a seated person of the seat body raises his / her body from the seat back starting from the waist. FIG. 16 is a diagram showing a trajectory of the head when a seated person of the seat body raises his body from the seat back starting from the vicinity of the diaphragm.

  As shown in FIG. 15, when the seated person 1 of the seat main body 110 raises his / her body from the seat back 112 with the waist C1 as a starting point, the head 2 moves on an arc-shaped locus M1 having a radius R1. Since the ceiling portion of the vehicle C is located on the trajectory M1, the seat body 110 is moved from the vehicle interior A1 to the vehicle exterior A2 in a state where the seated person 1 wakes up from the seat back 112 with the waist C1 as a starting point. The head 2 of the seated person 1 and the ceiling of the vehicle C in each of the case where the seat body 110 moves in the vehicle interior direction D2 from the vehicle exterior A2 to the vehicle interior A1. There is a possibility of contact.

  As shown in FIG. 16, when the seated person 1 of the seat body 110 raises his / her body from the seat back 112 starting from the vicinity of the diaphragm C2, the head 2 moves on an arc-shaped locus M2 having a radius R2. Since the ceiling portion of the vehicle C is located on the trajectory M2, the seat main body 110 is moved from the vehicle interior A1 to the outside of the vehicle interior in a state where the seated person 1 wakes up from the seat back 112 starting from the vicinity of the diaphragm C2. The head 2 of the seated person 1 is the ceiling portion of the vehicle C in each of the case where the seat main body 110 moves from the vehicle interior A2 to the vehicle interior A1 in the vehicle interior direction D2. There is a possibility of contact.

  Therefore, the vehicle seat 100 according to the embodiment of the present invention operates as described below. FIG. 17 is a flowchart showing the operation of the vehicle seat according to the embodiment of the present invention.

  As shown in FIG. 17, when the operation switch is operated in the vehicle seat 100 according to the embodiment of the present invention, the control device acquires various information such as the position of the seat body 110 and the detection value of each sensor. (S1).

  The control device operates the drive mechanism 120 based on the acquired various information (S2). FIG. 18 is a time chart showing the operation of the vehicle seat according to the embodiment of the present invention. In FIG. 18, the position a, b, c, d of the seat main body 110 at the time of the outer slide and the position c where the head 2 of the seated person 1 may come into contact with the ceiling of the vehicle C are exceeded. A region T less than d is shown. The positions a, b, c, and d of the seat body 110 are located on the outer side of the passenger compartment in this order.

  As shown in FIGS. 17 and 18, the control device determines whether or not the position of the sheet main body 110 is less than d after operating the drive mechanism 120 (S3). That is, the control device determines whether or not the head contactable region T has been passed.

  If the position of the sheet body 110 is less than d, the process proceeds to step S4. If the position of the sheet body 110 is equal to or greater than d, the process proceeds to step S31. In step S <b> 4, the control device determines whether the seat sensor 130 detects a seated person from the signal of the seat sensor 130.

  If there is a seated person, the process proceeds to step S5. If there is no seated person, the process proceeds to step S21. In step S <b> 5, the control device determines whether the head detection sensor 140 detects that the head 2 of the seated person 1 is separated from the headrest 113, based on a signal from the head detection sensor 140.

  If the head 2 of the seated person 1 is away from the headrest 113, the process proceeds to step S6. If the head 2 of the seated person 1 is in contact with the headrest 113, the process proceeds to step S21. In step S6, the control device determines whether or not the position of the sheet main body 110 has reached a.

  When the position of the sheet body 110 has reached a, the process proceeds to step S7, and when the position of the sheet body 110 has not reached a, the process proceeds to step S22. In step S7, the notification mechanism 170 notifies the seated person of a warning.

  After notifying the warning by the notification mechanism 170, the control device determines whether or not the position of the sheet main body 110 has reached b (S8). If the position of the sheet main body 110 has reached b, the process proceeds to step S9. If the position of the sheet main body 110 has not reached b, the process proceeds to step S22. In step S8, instead of determining whether or not the position of the sheet main body 110 has reached b, it may be determined whether or not the ejection operation has continued for a certain period of time after the position of the sheet main body 110 has reached a. .

  In step S <b> 9, the control device causes the reclining mechanism 160 to tilt the seat back 112 by 10 ° in the direction away from the seat cushion 111. Note that the angle of inclination by the reclining mechanism 160 is not limited to 10 °.

  The control device determines whether or not the position of the seat main body 110 has reached c after the seat back 112 is tilted by 10 degrees by the reclining mechanism 160 (S10). When the position of the sheet body 110 has reached c, the process proceeds to step S11, and when the position of the sheet body 110 has not reached c, the process proceeds to step S22.

  In step S11, the control device stops the drive mechanism 120. In step S <b> 21, the control device cancels the warning by the notification mechanism 170. In step S <b> 22, the control device continues the operation of drive mechanism 120 and returns to step 3.

  In step S <b> 31, the control device determines whether or not the reclining mechanism 160 is in a state where the seat back 112 is tilted by 10 ° in a direction away from the seat cushion 111. If the seat back 112 is tilted by 10 °, the process proceeds to step S32. If the seat back 112 is not tilted by 10 °, the process proceeds to step 33. In step 32, the control device raises the seat back 112 by 10 ° by the reclining mechanism 160 and raises the seat back 112 to the original position. The original position of the seat back 112 is, for example, an angle formed by the seat cushion 111 of 115 °.

  In step 33, the control device determines whether or not the position of the seat body 110 has reached the boarding / alighting position. If the position of the seat body 110 has reached the boarding / alighting position, the process proceeds to step S11. If the position of the sheet body 110 has not reached the boarding / alighting position, the process proceeds to step S41. In step S41, the control device continues the operation of drive mechanism 120, and returns to step 33.

  By operating as described above, in the vehicle seat 100 according to the embodiment of the present invention, the seat body 110 is configured such that the head 2 is the headrest 113 when the seating sensor 130 detects the seated person 1. When the head detection sensor 140 detects that the vehicle is away from the vehicle, the movement from the vehicle interior A1 to the vehicle exterior A2 is stopped.

  Specifically, in the state where the seat sensor 130 detects the seated person 1, the seat main body 110 detects the seat position while the head detection sensor 140 detects that the head 2 is separated from the headrest 113. When reaching c just before entering the head contactable region T, the drive mechanism 120 stops.

  In the vehicle seat 100 according to the embodiment of the present invention, the seat body 110 detects that the head 2 is away from the headrest 113 in a state where the seating sensor 130 detects the seated person 1. When the sensor 140 detects, the movement from the vehicle interior A2 to the vehicle interior A1 is also stopped.

  Specifically, in the state where the seat sensor 130 detects the seated person 1, the seat main body 110 detects the seat position while the head detection sensor 140 detects that the head 2 is separated from the headrest 113. When reaching d just before entering the head contactable region T, the drive mechanism 120 is stopped.

  With the above configuration, it is possible to prevent the seat position from entering the head contactable region T in a state in which the head 2 is separated from the headrest 113, so that the vehicle seat 100 is placed between the vehicle interior A1 and the vehicle exterior A2. When moving, the head 2 of the seated person 1 can be prevented from coming into contact with the ceiling of the vehicle C.

  Note that the seat main body 110 is moved from the passenger compartment A1 when the head detection sensor 140 detects that the head 2 is separated from the headrest 113 in a state where the seating sensor 130 detects the seated person 1. It may be configured such that at least one of the movement to the outside A2 and the movement from the outside A2 to the inside A1 is stopped.

  In the vehicle seat 100 according to the embodiment of the present invention, the seat main body 110 moves from the vehicle interior A1 to the vehicle exterior A2, and the seat main body 110 moves from the vehicle interior A2 to the vehicle interior A1. When the head detection sensor 140 detects that the head 2 is separated from the headrest 113, the notification mechanism 170 notifies the seated person 1 of a warning.

  Specifically, before the seat position enters the head-contactable region T, the notification mechanism 170 warns the seated person 1 that the head 2 is separated from the headrest 113. Thereby, before the seat position enters the head contactable region T, it is possible to prompt the seated person 1 to contact the head 2 with the headrest 113.

  The head 2 is separated from the headrest 113 at least while the seat body 110 moves from the vehicle interior A1 to the vehicle interior A2 and during movement of the seat body 110 from the vehicle interior A2 to the vehicle interior A1. When the head detection sensor 140 detects this, the notification mechanism 170 may be configured to notify the seated person 1 of a warning.

  In the vehicle seat 100 according to the embodiment of the present invention, the seat body 110 detects that the head 2 is away from the headrest 113 in a state where the seating sensor 130 detects the seated person 1. The reclining mechanism when the sensor 140 is detecting and before the seat body 110 moves from the vehicle interior A1 to the vehicle exterior A2 and before the seat body 110 moves from the vehicle interior A2 to the vehicle interior A1. By 160, the seat back 112 is inclined in a direction away from the seat cushion 111.

  Specifically, when the head detection sensor 140 detects that the head 2 is separated from the headrest 113 before the seat position enters the head contactable region T, the reclining mechanism 160 causes the seat back 112 to be separated. Is inclined in a direction away from the seat cushion 111. Thereby, before the seat position enters the head contactable region T, it is possible to try to bring the head 2 into contact with the headrest 113.

  The seat body 110 is used when the head detection sensor 140 detects that the head 2 is separated from the headrest 113 in the state where the seating sensor 130 detects the seated person 1, and The direction in which the seat back 112 is separated from the seat cushion 111 by the reclining mechanism 160 at least before the 110 moves from the vehicle interior A1 to the vehicle exterior A2 and before the seat main body 110 moves from the vehicle interior A2 to the vehicle interior A1. You may be comprised so that it may incline to.

  In the present embodiment, since the seat back 112 does not fall after the seat position passes the head contactable region T, when the seated person 1 sits on the seat body 110 at the getting-on / off position. The boarding / exiting property can be suitably maintained.

  In the vehicle seat 100 according to the embodiment of the present invention, the seat body 110 detects that the foot 3 is away from the footrest 114 in a state where the seating sensor 130 detects the seated person 1. When the sensor 150 is detecting, the movement from the vehicle interior A1 to the vehicle exterior A2 and the movement from the vehicle interior A2 to the vehicle interior A1 are each stopped.

  Specifically, when the foot detection sensor 150 detects that the foot 3 is away from the footrest 114, the seat position is in the foot contactable region where the foot 3 may contact the vehicle. The drive mechanism is stopped before entering.

  Accordingly, since the seat position can be prevented from entering the foot contactable region in a state where the foot portion 3 is separated from the footrest 114, the vehicle seat 100 is moved between the vehicle interior A1 and the vehicle exterior A2. It is possible to prevent the foot 3 of the seated person 1 from coming into contact with the vehicle C.

  Note that the seat main body 110 is located in the vehicle compartment A1 when the foot detection sensor 150 detects that the foot 3 is separated from the footrest 114 in a state where the seating sensor 130 detects the seated person 1. It may be configured such that at least one of the movement to the outside A2 and the movement from the outside A2 to the inside A1 is stopped.

  It should be thought that embodiment disclosed this time is an illustration and restrictive at no points. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  1 seated person, 2 heads, 3 legs, 100 vehicle seat, 110 seat body, 111 seat cushion, 112 seat back, 113 headrest, 114 footrest, 115 armrest, 120 drive mechanism, 121, 122 slide rail, 123 outside Inner slide mechanism, 124 Lateral slide mechanism, 125 Four-bar linkage mechanism, 126 Guide roller, 130 Seat sensor, 140 Head detection sensor, 150 Foot detection sensor, 160 Reclining mechanism, 170 Notification mechanism, A1 vehicle interior, A2 vehicle exterior , C vehicle, C1 waist, C2 near diaphragm, D1 exterior direction, D2 interior direction, Dr door, P center pillar, T head accessible area.

Claims (5)

A seat body having a headrest and movable between the vehicle interior and the exterior of the vehicle;
A drive mechanism for moving the seat body;
A seating sensor for detecting the presence or absence of a seated person in the seat body;
A head detection sensor that is provided on the headrest and detects a contact / separation state of the head of the seated person to the headrest;
When the seat detection sensor detects that the head is separated from the headrest in a state where the seating sensor detects the seated person, the seat body moves from the vehicle interior to the vehicle exterior. A vehicle seat in which at least one of movement of the vehicle and movement from outside the vehicle compartment to the vehicle compartment is stopped. Further comprising a notification mechanism,
The head detection that the head is separated from the headrest during at least one of the time when the seat body moves from the vehicle interior to the vehicle interior and the time when the seat body moves from the vehicle interior to the vehicle interior. The vehicle seat according to claim 1, wherein when the sensor detects, the notification mechanism notifies a warning to the seated person. The seat body further includes a seat cushion and a seat back,
The vehicle seat according to claim 1, further comprising a reclining mechanism capable of adjusting an inclination angle of the seat back with respect to the seat cushion.   The seat body detects when the head detection sensor detects that the head is separated from the headrest in a state where the seating sensor detects the seated person, and the seat body The seat back is inclined in a direction away from the seat cushion by the reclining mechanism at least one before moving from the vehicle interior to the vehicle exterior and before moving the seat body from the vehicle interior to the vehicle interior. Item 4. The vehicle seat according to Item 3. The seat body further includes a footrest,
A foot detection sensor provided on the footrest for detecting a contact / separation state of the footrest of the seated person to the footrest;
When the seat detection sensor detects that the foot is separated from the footrest in a state where the seating sensor detects the seated person, the seat body moves from the vehicle interior to the vehicle exterior. The vehicle seat according to any one of claims 1 to 4, wherein at least one of the movement of the vehicle and the movement from the outside of the vehicle interior to the vehicle interior is stopped.

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