Automotive power seats

Abstract

To provide a power seat for an automobile, capable of, even when a user with a physique different from that upon cockpit locking performs cockpit unlocking and rides in the automobile, reducing at least a waiting time to a riding seat position allowing the user to ride in the automobile.SOLUTION: A power seat 10 for an automobile includes: a seat cushion 14 which, upon cockpit locking, moves to an anti-theft seat position making it impossible to ride in the automobile, and which, upon cockpit unlocking, moves to a riding seat position making it possible to ride in the automobile, and then moves to a driving seat position making it possible to drive the automobile; and a controller 20 which includes a storage unit 30 allowing the riding seat position and the driving seat position different for each user to be registered, and which controls movement of the seat cushion 14. A movement distance of the seat cushion 14 from the anti-theft seat position to the riding seat position is shorter than a movement distance of the seat cushion 14 from the anti-theft seat position to the driving seat position.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a power seat for a vehicle. [Background technology]

[0002] In a power seat for an automobile, an actuator is activated a predetermined time after the engine key is removed, causing the seat cushion to slide to the most forward position and the seat back to tilt forward (a so-called cockpit lock device using the seat) which has been known for some time (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 03-088872 Summary of the Invention [Problem to be solved by the invention]

[0004] As described above, in a power seat for an automobile, when a user (driver) who has exited the vehicle operates the cockpit lock, the seat cushion automatically moves from the driving seat position to the cockpit locked seat position (anti-theft seat position), which is the most forward position, to prevent theft. In such a power seat, when a user who gets in operates the cockpit unlock, the seat cushion automatically moves from the cockpit locked seat position (anti-theft seat position) to the driving seat position of the user who previously exited the vehicle.

[0005] Therefore, even if a different user with a different build than the user who previously disembarked (for example, a driver who is smaller than the driver who previously disembarked) gets in this time, the cockpit unlock operation of the new user will move the seat cushion from the cockpit-locked seat position (anti-theft seat position) to the driving seat position of the user who previously disembarked. Therefore, the new user will need to perform a separate operation to move the seat cushion to their own driving seat position.

[0006] In this way, when a user with a different build than when the cockpit was locked (a driver with a different build than the driver who previously exited the vehicle) unlocks the cockpit and gets into the vehicle, it takes a long time for the seat cushion to move from the seat position when the cockpit was locked (anti-theft seat position) of the user who is currently riding to the seat position when driving.

[0007] That is, it takes a long time to wait for the seat cushion to move to the boarding seat position where the current user can board (in this case, the driving seat position of the user who previously disembarked), and a long time to adjust the seat cushion to the driving seat position where the current user can drive after boarding. This is problematic when the user wants to board the car in a hurry, for example, on rainy days, or when they want to start the car in a hurry.

[0008] Therefore, an object of the present invention is to provide a power seat for an automobile that can reduce the waiting time until a user with a different physique than when the cockpit is locked can get in, even when the user unlocks the cockpit and gets in. [Means for solving the problem]

[0009] In order to achieve the above-mentioned object, a first aspect of the power seat for an automobile according to the present invention comprises a seat cushion that, when a user who has exited the vehicle locks the cockpit, moves to an anti-theft seat position that prevents the user from getting into the automobile, and, when a user who has entered the vehicle unlocks the cockpit, moves to an entry seat position that enables the user to get into the automobile, and then moves to a driving seat position that enables the user to drive the automobile; a seat back that rotates to a most forward-leaning position when the cockpit is locked, and to a predetermined rearward-leaning position when the cockpit is unlocked; and a control device that has a memory unit that can register the entry seat position and the driving seat position, which differ for each user, and that controls the movement of the seat cushion and the rotation of the seat back, wherein the movement distance of the seat cushion from the anti-theft seat position to the entry seat position is shorter than the movement distance of the seat cushion from the anti-theft seat position to the driving seat position.

[0010] According to the first aspect of the invention, when a user who has exited the vehicle locks the cockpit, the seat cushion of the power seat for the automobile moves to an anti-theft seat position that makes it impossible for anyone to get into the automobile, and the seatback of the power seat for the automobile tilts forward to its most forward tilt position. This makes it impossible for anyone to get into the automobile (particularly the driver's seat), thereby preventing theft of the automobile.

[0011] On the other hand, when the cockpit is unlocked by the user, the seat cushion of the power seat for an automobile moves to a riding position where the user can get into the automobile, and then moves to a driving position where the user can drive the automobile.The seat back of the power seat for an automobile rotates to a predetermined rearward position when the cockpit is unlocked by the user.

[0012] The control device's memory unit can be configured to store different driver's seat positions and boarding seat positions for each user. Therefore, even if a user with a different build unlocks the cockpit and boards the vehicle, the seat cushion will only move from the anti-theft seat position to the boarding seat position registered by that user.

[0013] The distance the seat cushion moves from the anti-theft seat position to the seat position for getting in is shorter than the distance the seat cushion moves from the anti-theft seat position to the seat position for driving, thereby reducing at least the waiting time for the power seat for an automobile to reach the seat position for getting in.

[0014] Furthermore, a second aspect of the power seat for an automobile according to the present invention is the power seat for an automobile of the first aspect, wherein the control device moves the seat cushion from the riding seat position to the driving seat position by detecting that the seat belt is fastened.

[0015] According to the second aspect of the invention, fastening the seat belt triggers the seat cushion to move from the seat position for getting in to the seat position for driving. Therefore, compared to when the user operates the seat cushion separately from the seat position for getting in to the seat position for driving, this eliminates the need for cumbersome operations and efficiently reduces the time it takes for the user to get in and be able to drive.

[0016] Furthermore, a third aspect of the power seat for an automobile according to the present invention is a power seat for an automobile according to the first or second aspect, wherein the control device automatically sets the seat position when riding in accordance with the registered seat position when driving.

[0017] According to the third aspect of the invention, the seat position when getting on is automatically set according to the registered seat position when driving. Therefore, the appropriate seat position when getting on according to the user's physique can be easily and accurately set, and the waiting time until the seat position when getting on is efficiently reduced.

[0018] Furthermore, a fourth aspect of the power seat for an automobile according to the present invention is a power seat for an automobile according to any one of the first to third aspects, wherein the seat back rotates to a rearward tilt position that enables the user riding in the automobile to drive the automobile when the cockpit is unlocked, and the memory unit can register different rearward tilt positions for each user.

[0019] According to the fourth aspect of the invention, when a user unlocks the cockpit, the seatback of the power seat rotates to a rearward tilt position that allows the user to drive the vehicle. The memory unit can store different rearward tilt positions for each user. Therefore, even if a user with a different build unlocks the cockpit and gets in, the time it takes for the user to be able to drive after getting in is efficiently reduced. [Effects of the Invention]

[0020] As described above, with the power seat for an automobile according to the present invention, even if a user with a different build unlocks the cockpit and gets in, the waiting time until the seat position at which the user can get in can be reduced. [Brief explanation of the drawings]

[0021] [Figure 1] 2 is a schematic side view showing the movement of the power seat for a vehicle according to the present embodiment to the anti-theft seat position, together with the control device and each mechanism. FIG. [Figure 2] 1A and 1B are explanatory views showing the movement of the seat cushion when the cockpit is locked by a large user getting off the vehicle according to the present embodiment, and the movement of the seat cushion when the cockpit is unlocked by a small user getting on the vehicle according to the present embodiment. [Figure 3]1A and 1B are explanatory views showing the movement of the seat cushion when the cockpit is locked by a small user getting off the vehicle according to the present embodiment, respectively, and showing the movement of the seat cushion when the cockpit is unlocked by a small user getting on the vehicle according to the present embodiment. [Figure 4] 1A and 1B are explanatory views showing the movement of the seat cushion when a small user dismounts and locks the cockpit according to the present embodiment, respectively, and showing the movement of the seat cushion when a large user gets on and unlocks the cockpit according to the present embodiment. [Figure 5] 1A and 1B are explanatory views schematically showing the movement of the seat cushion when the cockpit is locked by a large user getting off the vehicle according to the present embodiment, and FIG. 1B is an explanatory view schematically showing the movement of the seat cushion when the cockpit is unlocked by a large user getting on the vehicle according to the present embodiment. [Figure 6] 1A and 1B are explanatory diagrams showing the movement of the seat cushion when the cockpit is locked by a large user getting off according to a comparative example, and the movement of the seat cushion when the cockpit is unlocked by a small user getting on according to a comparative example. DETAILED DESCRIPTION OF THE INVENTION

[0022] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. For ease of explanation, the arrow UP shown in each drawing indicates the seat upper direction, and the arrow FR indicates the seat forward direction. Therefore, in the following description, unless otherwise specified, when up / down and front / rear directions are mentioned, they refer to the up / down and front / rear directions of an automotive power seat 10, which will be described later. Furthermore, the left / right direction is synonymous with the seat width direction.

[0023] 1, a power seat for an automobile (hereinafter, sometimes simply referred to as a "power seat") 10 according to this embodiment is a seat for at least the driver's seat of an automobile (not shown), and includes a seat body 12 and a control device 20. This power seat 10 is equipped with a so-called cockpit lock function that, under the control of the control device 20, locks the position and posture of the seat body 12 after the user (driver) has exited the automobile in a position and posture that prevents a person (a thief) from getting in, thereby preventing theft of the automobile (improving security).

[0024] As shown in FIG. 1, the seat body 12 of the power seat 10 has a seat cushion 14 on which the user (driver) sits (supporting the user's buttocks and thighs), a seat back 16 whose lower end is rotatable on the rear side of the seat cushion 14 with the seat width direction as its axial direction and which supports the user's back, and a headrest 18 whose height is adjustable and which is attached to the upper end of the seat back 16 and supports the user's head.

[0025] A pair of left and right lower rails (not shown) extending in the front-to-rear direction are provided on the floor (not shown) of the passenger compartment of the automobile, and each lower rail supports a pair of left and right upper rails (not shown) provided on the lower sides of the seat cushion 14 in the seat width direction so that the upper rails can slide in the front-to-rear direction. The upper rails (seat cushion 14) are configured to be slidable along the lower rails by a known slide mechanism 24.

[0026] The seat cushion 14 supported by each upper rail is configured to be able to move up and down relative to each upper rail by a known lifter mechanism 22. The forward / backward and up / down movement of the seat cushion 14 and the tilting (rotation) of the seat back 16 by a known reclining mechanism 26 are controlled (automatically executed) by a control device 20.

[0027] The control device 20 is an ECU (Electronic Control Unit) that controls at least the forward / backward and up / down movement of the seat cushion 14 and the tilting (rotation) of the seat back 16, and is provided in the seat body 12. The control device 20 has a built-in storage unit (memory) 30 that can register at least the position of the seat cushion 14 (driving seat position) and the posture of the seat back 16 (rearward tilt position) that allow the user to drive the vehicle, and the position of the seat cushion 14 (riding seat position) that allows the user to get into the vehicle.

[0028] Therefore, when the user adjusts the position (seat position when driving and seat position when riding) and posture (rearward tilt position) of the seat body 12 and operates a smart key described later to register the position and posture, the position and posture are registered as the user's set position and posture in the memory unit 30. Note that, as described later, a plurality of set positions and postures can be set, and different set positions and postures can be registered in the memory unit 30 for each user.

[0029] The cockpit lock using the seat body 12 of the power seat 10 is configured to operate (move and rotate) when the driver's side door (not shown) is locked by operating a smart key (not shown), which is a small, portable communication device carried by the user. Note that, hereinafter, when the driver's side door is locked by operating the smart key is referred to as "when the cockpit is locked."

[0030] When the cockpit is locked, the control device 20 receives the lock signal and controls the slide mechanism 24 to move the seat cushion 14 to the maximum forward position, the lifter mechanism 22 to lower (move) the seat cushion 14 to the maximum lowered position, and the reclining mechanism 26 to tilt (rotate) the seat back 16 forward to the maximum forward tilt position.

[0031] Then, under the control of the control device 20, a well-known seat lock mechanism 28 is activated to lock the seat body 12 so as to maintain its position and posture. That is, the seat body 12 moves from the position shown by the solid line in FIG. 1 to the position shown by the phantom line, and is locked in that position and posture. In the following, the position of the seat cushion 14 at this time will be referred to as the "anti-theft seat position."

[0032] Here, a steering wheel 32 is disposed in front of the power seat 10 (seat body 12) on the driver's seat side. Therefore, when the cockpit is locked, the upper end of the seat back 16 and the headrest 18 are disposed close to the steering wheel 32, and the gap between the steering wheel 32 and the upper end of the seat back 16 and the headrest 18 becomes extremely small (narrow). This prevents a person (thief) from getting into the power seat 10 (seat body 12), thereby preventing theft of the automobile.

[0033] The steering wheel 32 may be configured to be movable in the front-rear direction, and when the cockpit is locked, the steering wheel 32 may be automatically moved rearward to further reduce (narrow) the gap between the steering wheel 32 and the upper end of the seat back 16 and the headrest 18. The seat lock mechanism 28 may be configured with an electrical structure that forcibly cuts off electricity, or may be configured to include, for example, a mechanical locking mechanism that is activated by electricity being applied.

[0034] Furthermore, a smart key is prepared for each user who may drive the vehicle. In other words, each user who may drive the vehicle has his or her own smart key. Therefore, each user can operate his or her own smart key to register the above-mentioned set position and attitude in the memory unit 30.

[0035] Next, the movement of the seat body 12 when the driver's side door is unlocked by operating the smart key (when the cockpit is unlocked) will be described. Note that hereinafter, when the driver's side door is unlocked by operating the smart key is referred to as "when the cockpit is unlocked."

[0036] 1 to 6 (including the broken line circle) indicates the seating reference point of the seat cushion 14 (the position of the user's buttocks in a side view), and the "●" in Figs. 1 to 6 indicates the case where the seating reference point is located at the anti-theft seat position Pr. The roughly parallelogram-shaped frame in Figs. 1 to 6 indicates the adjustable range of the seating reference point.

[0037] When the user unlocks the cockpit, the control device 20 receives the unlock signal and releases the lock provided by the seat lock mechanism 28, causing the seat cushion 14 to automatically move (slide rearward and rise) to the set position (seat position when boarding and seat position when driving) previously registered in the memory unit 30 by the user, and the seat back 16 automatically tilts backward (rotates) to the position (rearward tilt position) previously registered in the memory unit 30 by the user.

[0038] Specifically, in the case of a small user, such as the human dummy AF05, as shown in Figures 2(B) and 3(B), the seat cushion 14 moves rearward from the anti-theft seat position Pr to the riding seat position Ps1 (for example, approximately 50 mm rearward from the anti-theft seat position Pr) that the small user has registered in advance, and then moves forward while rising to the driving seat position Ps2 that the small user has registered in advance.

[0039] The movement distance of the seat cushion 14 from the anti-theft seat position Pr to the riding seat position Ps1 (in other words, the movement time of the seat cushion 14 because the movement speed of the seat cushion 14 is constant) is set shorter than the movement distance (movement time) of the seat cushion 14 from the anti-theft seat position Pr to the driving seat position Ps2. Although not shown, the seat back 16 is designed to tilt backward (rotate) to a backward tilt position that the small user has registered in advance.

[0040] On the other hand, in the case of a large user, such as the dummy AM95, as shown in Figures 4(B) and 5(B), the seat cushion 14 moves rearward from the anti-theft seat position Pr to the riding seat position Pb1 (for example, approximately the middle of the sliding range) that the large user has registered in advance, and then moves rearward while rising to the driving seat position Pb2 that the large user has registered in advance.

[0041] The movement distance (movement time) of the seat cushion 14 from the anti-theft seat position Pr to the riding seat position Pb1 is shorter than the movement distance (movement time) of the seat cushion 14 from the anti-theft seat position Pr to the driving seat position Pb2. Although not shown, the seat back 16 is designed to tilt backward (rotate) to a backward tilt position that is registered in advance by the large user.

[0042] Furthermore, the movement of each user from the riding seat position Ps1, Pb1 to the driving seat position Ps2, Pb2 is triggered by fastening a seat belt (not shown). That is, when each user seated in the seat body 12 of the power seat 10 fastens the seat belt, a sensor (not shown) detects this fastening, and a detection signal is sent to the control device 20, which then operates the slide mechanism 24 and the lifter mechanism 22.

[0043] The control device 20 is also configured to automatically set the minimum riding seat positions Ps1, Pb1 of the seat cushion 14 required for each user to ride, in accordance with the driving seat positions Ps2, Pb2 of the seat cushion 14 registered by each user. Note that the control device 20 may also be configured to automatically set the rearward tilt position of the seat back 16 that puts each user in a posture suitable for driving, in accordance with the driving seat positions Ps2, Pb2 of the seat cushion 14 registered by each user.

[0044] Next, the operation of the power seat 10 for a vehicle according to this embodiment configured as described above will be described.

[0045] First, we will explain the case where the user who previously disembarked was a large user and the user getting on this time is a small user. First, we will explain a comparative example in which the seat position when getting on cannot be registered, based on Figure 6. As shown in Figure 6(A), when a large user locks the cockpit, the control device 20 receives a lock signal and controls the seat cushion 14 to move from the driving seat position Pb2 to the theft prevention seat position Pr.

[0046] 1, the seat cushion 14 slides to the most forward position and descends to the most lowered position. Then, the seat back 16 tilts forward to the most forward position, and the seat cushion 14 and the seat back 16 are locked in the anti-theft seat position Pr and posture by the seat lock mechanism 28. This prevents theft of the vehicle as described above.

[0047] On the other hand, when the cockpit is unlocked by a small user, the seat cushion 14 temporarily moves to the previous seat position Pb2 of the large user, as shown in Fig. 6(B). That is, in this comparative example, since the seat position at the time of getting in cannot be registered, the seat cushion 14 slides up and slides to the previous seat position Pb2 of the large user. Then, although not shown in the figure, the seat back 16 tilts backward (rotates) to the backward tilt position previously registered by the large user.

[0048] Thereafter, the seat cushion 14 is operated by the small user to slide and rise to the driving seat position Ps2. Then, although not shown, the seat back 16 is rotated (tilted forward) by the small user's operation to a rearward tilt position suitable for the small user. Therefore, it takes a long time (waiting time) for the seat main body 12 to move to the riding seat position (in this case, driving seat position Pb2) where the small user can ride in the seat main body 12, and a long time (adjustment time) for the seat main body 12 to move to the driving seat position Ps2 where the small user can drive.

[0049] In contrast, in this embodiment, as shown in Figure 2(A), when a large user locks the cockpit, the seat cushion 14 moves from the driving seat position Pb2 to the anti-theft seat position Pr, but when a small user unlocks the cockpit, the seat cushion 14 only moves to the riding seat position Ps1 that the small user has registered in advance, as shown in Figure 2(B).

[0050] In other words, when a small user unlocks the cockpit, they can get into the vehicle by waiting until the seat cushion 14 moves to the entry seat position Ps1 shown in Fig. 2(B). The movement distance (movement time) of the seat cushion 14 from the theft prevention seat position Pr to the entry seat position Ps1 is set shorter than the movement distance (movement time) of the seat cushion 14 from the theft prevention seat position Pr to the driving seat position Ps2.

[0051] Therefore, the movement time (waiting time) until the seat cushion 14 moves from the anti-theft seat position Pr to the riding seat position Ps1 is naturally shorter than that of the comparative example, and is also shorter than the movement time (waiting time) until the seat cushion 14 moves directly from the anti-theft seat position Pr to the driving seat position Ps2. And, because the seat cushion 14 only needs to move from the riding seat position Ps1 to the driving seat position Ps2, the movement time (adjustment time) from when the seat cushion 14 gets in to the driving seat position Ps2 at which the vehicle can be driven is also shorter than at least that of the comparative example.

[0052] In this way, with the power seat 10 for an automobile according to this embodiment, when a user with a smaller physique (different physique) unlocks the cockpit and gets in, the time (waiting time) for the seat cushion 14 to move from the anti-theft seat position Pr to the boarding seat position Ps1, and further the time (adjustment time) for the seat cushion 14 to move from the boarding seat position Ps1 to the driving seat position Ps2 can be reduced.

[0053] In particular, as described above, the user can get into the car by waiting until the seat cushion 14 moves from the anti-theft seat position Pr to the entry seat position Ps1 (the waiting time until getting into the car can be reduced), so there is no problem when the user wants to get into the car in a hurry, for example, in rainy weather.Furthermore, there is no problem when the user wants to start the car in a hurry, because the user can drive by waiting until the seat cushion 14 moves from the entry seat position Ps1 to the driving seat position Ps2.

[0054] Although not shown in the drawings, when a small user unlocks the cockpit, the seat back 16 only tilts backward (rotates) to the rearward tilt position that the small user has registered in advance. In other words, the seat back 16 only needs to wait until the seat cushion 14 moves to the in-boarding seat position Ps1. Therefore, compared to the comparative example in which the seat back 16 tilts backward to accommodate a large user and then further rotates (tilts forward) to accommodate a small user, the time from boarding to being able to drive can be efficiently reduced.

[0055] Furthermore, even if the user who previously disembarked was a small user and the user getting on this time is also a small user, the waiting time described above will at least be reduced. Specifically, as shown in Figure 3(A), when a small user locks the cockpit, the seat cushion 14 moves from the driving seat position Ps2 to the anti-theft seat position Pr. Then, when a small user unlocks the cockpit, as shown in Figure 3(B), the seat cushion 14 moves only to the boarding seat position Ps1 that the small user has registered in advance.

[0056] Here, the movement distance (movement time) of the seat cushion 14 from the anti-theft seat position Pr to the getting-in seat position Ps1 is set shorter than the movement distance (movement time) of the seat cushion 14 from the anti-theft seat position Pr to the driving seat position Ps2. Therefore, when a small user unlocks the cockpit, as described above, they can get into the vehicle by waiting until the seat cushion 14 moves to the getting-in seat position Ps1, which reduces the waiting time compared to waiting until the seat cushion 14 moves directly from the anti-theft seat position Pr to the driving seat position Ps2.

[0057] Next, we will explain the case where the user who previously disembarked was a small user and the user getting on this time is a large user. As shown in Figure 4(A), when the cockpit is locked by a small user, the seat cushion 14 moves from the driving seat position Ps2 to the anti-theft seat position Pr. Then, when the cockpit is unlocked by a large user, the seat cushion 14 moves to the boarding seat position Pb1 that the large user has registered in advance, as shown in Figure 4(B).

[0058] In other words, when a large user unlocks the cockpit, they can get into the vehicle by waiting until the seat cushion 14 moves to the entry seat position Pb1 shown in Fig. 4(B). The movement distance (movement time) of the seat cushion 14 from the theft prevention seat position Pr to the entry seat position Pb1 is set shorter than the movement distance (movement time) of the seat cushion 14 from the theft prevention seat position Pr to the driving seat position Pb2.

[0059] Therefore, the movement time (waiting time) until the seat cushion 14 moves from the anti-theft seat position Pr to the riding seat position Pb1 is shorter than that of the comparative example. And, since the seat cushion 14 only needs to move from the riding seat position Pb1 to the driving seat position Pb2, the movement time (adjustment time) from riding to the driving seat position Pb2 at which the driver can drive is also short.

[0060] As described above, with the power seat 10 for an automobile according to this embodiment, when a user with a larger build (different build) unlocks the cockpit and gets in, the movement time (waiting time) of the seat cushion 14 from the anti-theft seat position Pr to the entry seat position Pb1 can be reduced compared to when the cockpit is locked. Therefore, there is no problem when you want to get in the automobile in a hurry, for example, when it is raining.

[0061] Although not shown in the drawings, when a large user unlocks the cockpit, the seat back 16 tilts (rotates) backward to the backward tilt position that the large user has registered in advance. In other words, in this case, the seat back 16 only needs to wait until the seat cushion 14 moves to the in-boarding seat position Pb1. Therefore, compared to a case where the seat back 16 is tilted backward to accommodate a small user and then rotates (tilts backward) to accommodate a larger user, the time from boarding to being able to drive can be efficiently reduced.

[0062] Furthermore, even if the user who previously disembarked was a large user and the user getting on this time is also a large user, at least the waiting time described above will be reduced. Specifically, as shown in Figure 5(A), when the cockpit is locked by a large user, the seat cushion 14 moves from the driving seat position Pb2 to the anti-theft seat position Pr. Then, when the cockpit is unlocked by a large user, the seat cushion 14 moves to the boarding seat position Pb1 that the large user has registered in advance, as shown in Figure 5(B).

[0063] Here, the movement distance (movement time) of the seat cushion 14 from the anti-theft seat position Pr to the getting-in seat position Pb1 is set shorter than the movement distance (movement time) of the seat cushion 14 from the anti-theft seat position Pr to the driving seat position Pb2. Therefore, when a large user unlocks the cockpit, as described above, they can get into the vehicle by waiting until the seat cushion 14 moves to the getting-in seat position Pb1, which reduces the waiting time compared to waiting until the seat cushion 14 moves directly from the anti-theft seat position Pr to the driving seat position Pb2.

[0064] Furthermore, movement from the entry seat position Ps1 to the driving seat position Ps2 and movement from the entry seat position Pb1 to the driving seat position Pb2 are triggered by fastening the seat belt, respectively. Therefore, compared to when the user separately operates the seat cushion 14 to move from the entry seat position Ps1 to the driving seat position Ps2 or from the entry seat position Pb1 to the driving seat position Pb2, cumbersome operations are not required, and the time from entry to being able to drive can be efficiently reduced.

[0065] Furthermore, since the boarding seat position Ps1 and the boarding seat position Pb1 are automatically set according to the registered driving seat position Ps2 and the driving seat position Pb2, respectively, the appropriate boarding seat position Ps1 or the boarding seat position Pb1 can be easily and accurately set according to the user's physique. Therefore, the waiting time until the boarding seat position Ps1 or the boarding seat position Pb1 can be efficiently reduced.

[0066] While the power seat 10 for an automobile according to this embodiment has been described above with reference to the drawings, the power seat 10 for an automobile according to this embodiment is not limited to the one shown in the drawings, and the design can be modified as appropriate within the scope of the gist of the present invention. For example, when the cockpit is locked, the position of the seat cushion 14 is not limited to the most forward position or the most lowered position, and the position of the seat back 16 is not limited to the most forward tilted position.

[0067] Furthermore, the set position and posture of the seat body 12 for each user may be registered using buttons provided on the armrest of the side door, etc. Also, the cockpit may be configured to be locked and unlocked by operating a mobile terminal such as a smartphone, instead of a smart key. [Explanation of symbols]

[0068] 10. Automotive power seats 14 seat cushion 16 Seat back 20 Control device 30 Storage section Pb1 Seat position when riding Pb2 Seat position when driving Pr Anti-theft seat position Ps1 Seat position when riding Ps2 Seat position when driving

Claims

1. a seat cushion that moves to an anti-theft seat position that makes it impossible for the user to get into the vehicle when the cockpit is locked by a user who has gotten off the vehicle, and that moves to an entry seat position that makes it possible for the user to get into the vehicle when the cockpit is unlocked by a user who is getting on, and then moves to a driving seat position that makes it possible for the user to drive the vehicle; a seat back that rotates to a most forward tilted position when the cockpit is locked and rotates to a predetermined rearward tilted position when the cockpit is unlocked; a control device having a storage unit capable of registering the riding seat position and the driving seat position, which differ for each user, and controlling the movement of the seat cushion and the rotation of the seat back; Equipped with The power seat for a vehicle is configured such that the movement distance of the seat cushion from the anti-theft seat position to the seat position when riding is shorter than the movement distance of the seat cushion from the anti-theft seat position to the seat position when driving.

2. 2. The power seat for a vehicle according to claim 1, wherein the control device moves the seat cushion from the riding position to the driving position by detecting that the seat belt is fastened.

3. 3. The power seat for a vehicle according to claim 1, wherein the control device automatically sets the seat position when riding in accordance with the registered seat position when driving.

4. 3. A power seat for an automobile as described in claim 1 or claim 2, wherein the seat back rotates to a rearward tilt position that enables the user to drive the automobile when the cockpit is unlocked, and the memory unit can register different rearward tilt positions for each user.

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