JP2021011153A - Vehicular seat device - Google Patents

Abstract

To avoid increase in a position of a seat cushion even by arrangement of an ECU in a vehicular seat device including: a rotation mechanism which has a rotation member for supporting a seat cushion frame and a base member for rotatably supporting the rotation member from below, and is arranged below the seat cushion frame, an electric device, and the ECU for controlling operation of the electric device.SOLUTION: A circular housing part 41 opened at least upward is formed at a central part of a rotary member 30, and ECUs 70 and 71 is located in the housing part 41 in a plan view and at least a part of the ECUs 70 and 71 is arranged at a position overlapping the rotary member 30 in a side view.SELECTED DRAWING: Figure 6

Description

The present invention has a seat cushion frame that supports the seat cushion, a rotating member that supports the seat cushion frame, and a base member that rotatably supports the rotating member from below, and is arranged below the seat cushion frame. The present invention relates to a vehicle seat device including a rotating mechanism, an electric device, and an ECU that controls the operation of the electric device.

For example, Patent Document 1 and the like are known for a vehicle seat device in which a rotating member that supports a seat cushion frame can be rotated in response to an operation of an electric motor and is supported by a base member.

Japanese Unexamined Patent Publication No. 2004-123044

By the way, a vehicle seat device provided with an electric device such as an electric motor also includes an ECU for controlling the operation of the electric device, but the seat cushion is raised in order to secure a space for arranging the ECU. I want to avoid it.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a vehicle seat device in which the position of the seat cushion can be avoided from being raised depending on the arrangement of the ECU.

In order to achieve the above object, the present invention has a seat cushion frame that supports the seat cushion, a rotating member that supports the seat cushion frame, and a base member that rotatably supports the rotating member from below. In a vehicle seat device including a rotation mechanism arranged below the seat cushion frame, an electric device, and an ECU that controls the operation of the electric device, a circular accommodation that opens at least upward in the central portion of the rotating member. The first feature is that the portion is formed, the ECU is located in the accommodating portion in a plan view, and at least a part of the ECU is arranged at a position overlapping the rotating member in a side view.

Further, in the present invention, in addition to the configuration of the first feature, the rotating member forms a tapered portion formed so that the diameter becomes larger as it goes upward, and the accommodating portion cooperates with the tapered portion. The ECU is formed so as to have a cylindrical side wall portion that rises upward from the upper end portion of the tapered portion and a flange portion that projects outward from the side wall portion, and the ECU is inclined along the tapered portion. The second feature is that they are arranged in a slanted posture.

In the present invention, in addition to the configuration of the second feature, a mounting member arranged inside the outer circumference of the rotating member in a plan view is attached to the rotating member, and the ECU is attached to the mounting member. Is the third feature.

In the present invention, in addition to the configuration of the third feature, the mounting member has an inclined plate portion inclined along the tapered portion and arranged in the accommodating portion, and the ECU is attached to the inclined plate portion. The fourth feature is that it can be attached.

In the present invention, in addition to the configuration of the fourth feature, the mounting member is coupled to the collar portion of the rotating member in front of the rotation axis of the rotating member, and the ECU is viewed from above the seat cushion. The fifth feature is that the seat cushion frame is attached to the inclined plate portion at a position where interference with the cushion-side pressure receiving member attached to the seat cushion frame is avoided.

The sixth feature of the present invention is that, in addition to the configuration of the fifth feature, the ECU is arranged so as to avoid directly below the lowermost end of the cushion-side pressure receiving member in a side view.

In the present invention, in addition to the configuration of the first or second feature, an electric motor that exerts power to rotationally drive the rotating member and the ECU are attached to one side of the base member and the rotating member. The seventh feature is that it can be done.

The eighth feature of the present invention is that, in addition to the configuration of the seventh feature, the electric motor and the ECU are attached to the side of the base member and the rotating member having a larger length in the vertical direction. To do.

In the present invention, in addition to the configuration of the seventh or eighth feature, the electric motor is attached to a mounting member arranged inside the outer circumference of the rotating member in a plan view and attached to one of the base member and the rotating member. A ninth feature is that the motor and the ECU are attached.

Further, the present invention has a tenth feature that the mounting member is mounted on the rotating member in addition to the configuration of the ninth feature.

The second tapered portion 30a of the embodiment corresponds to the tapered portion of the present invention, the fourth side wall portion 30b of the embodiment corresponds to the side wall portion of the present invention, and the second flange portion of the embodiment corresponds to the side wall portion. 30c corresponds to the collar of the present invention, and the electric motor 53 and the blower 65 of the embodiment correspond to the electric device of the present invention.

According to the first feature of the present invention, the ECU is housed in a circular housing portion formed in the central portion of the rotating member and opened at least upward, and at least a part of the ECU is a rotating member in a side view. Since it is in the overlapping position, by suppressing the protrusion of the ECU upward from the rotating member, the height of the seat cushion is prevented from increasing due to the arrangement of the ECU, and in the direction orthogonal to the rotation axis of the rotating member. It is also possible to prevent the vehicle seat device from becoming large.

Further, according to the second feature of the present invention, by arranging the ECU in an inclined posture along the tapered portion of the rotating member, the upward protrusion of the ECU from the rotating member can be more effectively suppressed. The height of the seat cushion can be suppressed more effectively.

According to the third feature of the present invention, since the ECU is attached to the attachment member arranged inside the outer circumference of the rotating member in a plan view and attached to the rotating member, the ECU is rotated by the arrangement of the attaching member for attaching the ECU. It is possible to prevent the vehicle seat device from becoming large in the direction orthogonal to the rotation axis of the member.

According to the fourth feature of the present invention, since the ECU is mounted on the inclined plate portion of the mounting member so as to be arranged in the accommodating portion, the mounting member is tilted along the tapered portion of the rotating member. It can be easily attached to the wheel to prevent the ECU from protruding upward from the rotating member.

According to the fifth feature of the present invention, the mounting member is coupled to the collar of the rotating member in front of the rotation axis of the rotating member, and is mounted on the seat cushion frame so as to receive a load from above the seat cushion. Since the ECU is attached to the inclined plate portion at a position where interference with the cushion-side pressure receiving member is avoided, it is possible to prevent the vehicle seat device from becoming large in the vertical direction.

According to the sixth feature of the present invention, since the ECU is not arranged directly below the lowermost end of the cushion-side pressure receiving member in a side view, interference between the ECU and the cushion-side pressure receiving member can be more easily avoided.

According to the seventh feature of the present invention, since the electric motor and the ECU are attached to one side of the base member and the rotating member, the electric motor and the ECU can be easily connected.

According to the eighth feature of the present invention, since the electric motor and the ECU are attached to the side of the base member and the rotating member having a large length in the vertical direction, it is possible to prevent the height of the vehicle seat device from becoming high. However, it is possible to easily secure a space for arranging the electric motor and the ECU.

According to the ninth feature of the present invention, the electric motor and the ECU are attached to the attachment members arranged inside the outer circumference of the rotating member in a plan view. Therefore, depending on the arrangement of the attachment members for attaching the ECU and the electric motor. It is possible to prevent the vehicle seat device from becoming large in size in a direction orthogonal to the rotation axis of the rotating member.

Further, according to the tenth feature of the present invention, since the mounting member is mounted on the rotating member, the electric motor and the ECU also rotate with respect to the base member when the rotating member rotates, and the electric motor and its electric motor The connection wiring with the ECU that controls the operation of the above can be compactly integrated.

The second tapered portion 30a of the embodiment corresponds to the tapered portion of the present invention, the fourth side wall portion 30b of the embodiment corresponds to the side wall portion of the present invention, and the second flange portion of the embodiment corresponds to the side wall portion. 30c corresponds to the collar of the present invention, and the electric motor 53 and the blower 65 of the embodiment correspond to the electric device of the present invention.

It is a perspective view which shows the seat device for a vehicle with the seat body omitted. It is a top view of the main part of a vehicle seat device. FIG. 2 is a sectional view taken along line 3-3 of FIG. It is a figure which looked at the ride rail and the rotation mechanism from the same direction as FIG. It is a figure which saw the slide rail and the rotation mechanism from the side opposite to FIG. FIG. 6 is a sectional view taken along line 6-6 of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following description, "front and back", "left and right", and "up and down" shall mean the direction seen from the seated person in that state while the front direction of the seated person seated in the normal posture is the front direction.

First, in FIG. 1, the vehicle seat device includes a pair of slide rails 13 that are arranged in parallel with each other and extend linearly while being spaced in the left-right direction so that the seat body 11 can slide, and the seat body 11. Includes a rotating mechanism 14 that is rotatably supported and movable along the slide rail 13.

The seat body 11 includes a seat cushion 11a supported by the seat cushion frame 16 and a seat back 11b supported by the seat back frame 17 connected to the seat cushion frame 16 and arranged above the seat cushion 11a. A headrest 11c supported by a guide cylinder 18 provided on the seat back frame 16 so as to be able to adjust the height is provided.

The seat cushion frame 16 connects a pair of side frames 16a arranged so as to be arranged at positions separated from each other in the left-right direction and linearly extending in the front-rear direction, and the front ends of the side frames 16a. It has a pan frame 16b to be used and a rear pipe 16c connecting the rear ends of the pair of side frames 16a.

With reference to FIGS. 2 and 3, a cushion-side pressure receiving member 19 that receives a load from above the seat cushion 11a is attached to the seat cushion frame 16, and the cushion-side pressure receiving member 19 is attached to the seat cushion frame 16. It has a plurality of (4 in this embodiment) seat springs 20 that are curved in a zigzag manner so as to meander the metal wire to the left and right, and the adjacent seat springs 20 are symmetrical to each other. Adjacent seat springs 20 are connected to each other by a plurality of resin intermediate connecting members 21 which are arranged so as to be so as to be arranged and integrally formed with the seat springs 20 by insert molding.

The front end portions of the plurality of seat springs 20 are respectively engaged with the locking portions 22 provided on the pan frame 16b of the seat cushion frame 16. Further, the rear end portions of the seat springs 20 adjacent to each other are engaged with the rear pipe 16c of the seat cushion frame 16 and are integrally molded with the seat spring 20 by insert molding. It is connected by 23, and the rear end connecting member 23 is formed so as to cover the rear pipe 16c.

That is, the cushion-side pressure receiving member 19 is bridged between the pan frame 16b and the rear pipe 16c of the seat cushion frame 16, and is arranged between the pair of side frames 16a in a plan view. Moreover, as shown in FIG. 3, most of the cushion-side pressure-receiving member 19 is provided so that the lowermost end 19a of the cushion-side pressure-receiving member 19 is in the vicinity of the rear pipe 16c provided at the rear end of the seat cushion frame 16. Is inclined backward and is bridged between the pan frame 16b and the rear pipe 16c.

Focusing again on FIG. 1, the seat back frames 17 are a pair of seat back side frames 17a extending in the vertical direction so as to be arranged at positions separated from each other in the left-right direction, and the upper ends of the seat back side frames 17a. It has an upper frame 17b for connecting the portions and a lower frame 17c for connecting the lower ends of the pair of seat back side frames 17a.

A back side pressure receiving member 24 formed so as to be elastically deformable by a resin or the like is arranged between the pair of seat back side frames 17a, and the back side pressure receiving member 24 is formed by an upper connecting wire 25 and a lower connecting wire 26. It is bridged between the left and right seat back side frames 17a via.

With reference to FIGS. 4 to 6, the seat cushion frame 16 is mounted on the rotating mechanism 14, and the rotating mechanism 14 is a base member 29 that can move along the slide rail 13. A rotating member 30 that supports the seat cushion frame 16 and is rotatably supported by the base member 29, and a cover member 31 that covers a part of the rotating member 30 from above and is fixed to the base member 29. And.

The base member 29 is an annular first bottom wall portion 29a, a cylindrical first side wall portion 29b rising upward from the outer peripheral portion of the first bottom wall portion 29a, and a first side wall portion 29b. It has a first flange portion 29c protruding outward from the upper end portion, and the first flange portion 29c is formed in a rectangular shape.

Further, the cover member 31 has an annular second bottom wall portion 31a that comes into contact with the first bottom wall portion 29a of the base member 29 from above, and the cover member 31 is slightly upward from the outer circumference of the second bottom wall portion 31a. A cylindrical second side wall portion 31b that rises to the top, a first tapered portion 31c that is formed so as to have a larger diameter toward the upper side and is connected to the upper end portion of the second side wall portion 31b, and a first tapered portion. It has an annular first flat wall portion 31d projecting laterally from the upper end portion of the 31c, and a cylindrical third side wall portion 31e rising upward from the outer circumference of the first flat wall portion 31d. The bottom wall portion 31a of 2 is connected to the first bottom wall portion 29a of the base member 29 by a plurality of rivets 32.

The rotating member 30 has a second tapered portion 30a that is arranged at a position facing the first tapered portion 31c of the cover member 31 from the outside and has a larger diameter toward the upper side. A cylindrical fourth side wall portion 30b that rises upward from the upper end portion of the second tapered portion 30a so as to face the third side wall portion 31e of the cover member 31 from the outside, and a fourth side wall portion. It has a second flange portion 30c protruding outward from the portion 30b, and the second flange portion 30c is formed in a rectangular shape. Further, a plurality of connecting members 33 extending in parallel with the slide rail 13 are fastened to the second flange portion 30c with a plurality of first bolts 34 and second nuts 35. The side frame 16a of the seat cushion frame 16 is connected to the connecting member 33, and the side frames 16a extend linearly while being arranged at positions separated from each other, and the second rotating member 30. It will be fixedly arranged on the flange portion 30c of the above via the connecting member 33.

The rotary member 30 is rotatably supported by an annular rotary support portion 36 of the base member 29 via a bearing 37, and the rotary support portion 36 is a first bottom wall portion of the base member 29. The 29a and the first side wall portion 29b are formed so that the cross-sectional shape is substantially L-shaped.

The bearing 37 is formed by holding balls 39 at a plurality of locations in the circumferential direction of the annular retainer 38, and the first tapered portion 31c of the rotating member 30 has an annular recess 40 for rolling the ball 39. Is formed.

By the way, at least the accommodating portion 41 that opens upward is formed in the central portion of the rotating member 30. In this embodiment, the accommodating portion 41 is configured to be opened upward and downward by the second tapered portion 30a and the fourth side wall portion 30b of the rotating member 30. The cover member 31 is accommodated and arranged in the accommodating portion 41.

By the way, the slide rail 13 is composed of a fixed rail 45 extending in the front-rear direction of the vehicle and a movable rail 46 slidably fitted to the fixed rail 45, and the first flange portion 29c of the base member 29. Is fastened to the movable rail 46 with a plurality of second bolts 47 and second nuts 48.

The rotary member 30 is rotationally driven by a rotary drive device 49 provided between the rotary member 30 and the base member 29, and the rotary drive device 49 is the actuator 50 and the rotation exerted by the actuator 50. An output gear 51 that rotates by power and an input gear 52 that meshes with the output gear 51 are provided.

The actuator 50 and the output gear 51 are attached to one side of the rotating member 30 and the base member 29, and the input gear 52 is fixed to the other side of the rotating member 30 and the base member 29.

Moreover, the actuator 50 is attached to the base member 29 and the rotating member 30 having a larger length in the vertical direction, and in this embodiment, the actuator 50 is attached to the rotating member 30 side. The input gear 52 is fixed to the base member 29.

The actuator 50 has an electric motor 53 having a rotation axis extending in the vehicle width direction, a gearbox 55 connected to a case 54 of the electric motor 53, and a rotation axis parallel to the rotation axis C of the rotation member 30. An output shaft 56 protruding from the gear box 55 is provided, and the output gear 51 is provided on the output shaft 56. In the gear box 55, a gear reduction mechanism (not shown) that changes the rotation direction by 90 degrees while decelerating the rotational power of the electric motor 53 and transmits the rotational power to the output shaft 56 is housed. The gear reduction mechanism is configured to include a worm gear so as to prevent the rotational power from the output shaft 56 side from being transmitted to the electric motor 53 side.

The rotating member 30 is rotationally driven in a range of 180 degrees, and the input gear 52 has a gear portion 52a on the inner peripheral portion and is formed in an arc shape over approximately 180 degrees, and the base member 29 The gear portion 52a is fixed to the lower surface of the inner peripheral portion of the first bottom wall portion 29a to be provided so as to project inward in the radial direction from the inner circumference of the first bottom wall portion 29a. As a result, the gear portion 52a is arranged so as to face the rotation axis C side of the rotation member 30.

When fixing the input gear 52 to the base member 29, a plurality of so as to connect the second bottom wall portion 31a of the cover member 31 to the first bottom wall portion 29a of the base member 29. A part of the rivet 32 is used to connect the second bottom wall portion 31a and the input gear 52 together to the first bottom wall portion 29a with the first bottom wall portion 29a interposed therebetween. At this time, the circumferential end portion of the input gear 52 is arranged at a portion corresponding to the rivet 32 so that the second bottom wall portion 31a and the input gear 52 are coupled together to the first bottom wall portion 29a. If this is the case, a notch 57 is formed at the circumferential end of the input gear 52, as shown in FIG. 5, in order to avoid unnecessarily increasing the circumferential length of the input gear 52. You may do so.

By the way, a mounting member 58 arranged inside the outer circumference 30d of the rotating member 30 in a plan view is attached to the rotating member 30, and the actuator 50 including the electric motor 53 is mounted on the mounting member 58. That is, the gearbox 55 of the actuator 50 is mounted on the upper surface of the mounting member 58, and the output gear 51 is provided on the output shaft 56 penetrating the mounting member 58.

The mounting member 58 is arranged in front of the rotation axis C of the rotation member 30. The mounting member 58 has plate portions 58a to be coupled to the upper surface of the third flange portion 30c of the rotating member 30 at both ends and extends so as to be orthogonal to the longitudinal direction of the slide rail 13. There are a pair of left and right bonded plate portions 58a, and a pair of left and right end portions are connected to the coupled plate portion 58a while being inclined so as to be in a downward position toward the inward radial direction of the rotating member 30. It is formed so as to integrally have a flat support plate portion 58c connecting the inclined plate portion 58b and the lower ends of the inclined plate portions 58b.

By the way, the inclined plate portion 58b is arranged in the accommodating portion 41 at the center of the rotating member 30 while facing the first tapered portion 31c of the cover member 31 from the inside, and the rotating member. Since the second tapered portion 30a of 30 faces the first tapered portion 31c from the outside, the inclined plate portion 58b is inclined along the second tapered portion 30a of the rotating member 30. Then, it will be arranged in the accommodating portion 41.

The actuator 50 is attached to the upper surface of the support plate portion 58c of the attachment member 58, and the actuator 50 is attached to the attachment plate portion 58 while avoiding interference with the cushion-side pressure receiving member 19. It is arranged below the cushion-side pressure receiving member 19.

By the way, between the first tapered portion 31c of the cover member 31 and the second tapered portion 30a of the rotating member 30, an annular slider 60 that is in sliding contact with the tapered portions 31c and 30a is interposed. Be disguised. The slider 60 includes a vehicle seat device that rotates the rotating member 30 by applying a human force to the rotating mechanism 14 instead of the electric force of the actuator 50, and the cover member 31 and the rotating member 30. In a vehicle seat device that can be rotated by human power, a mechanism for suppressing rattling of the rotating member 30 in a locked state that prevents the rotating member 30 from rotating is used for sharing the above. An annular member constituting a part thereof is interposed between the first tapered portion 31c and the second tapered portion 30a in place of the slider 60.

A blower 65 is arranged behind the front end edge of the pan frame 16b forming the front portion of the seat cushion frame 16, and blows out to the other end 66b of the duct 66 to which one end 66a is connected to the blower 65. An opening 67 serving as a mouth is formed.

As shown in FIG. 3, the blower 65 is attached to the lower portion of the pan frame 16b via a support member 68, and the opening 67 is radially inside the annular rotating member 30 in a plan view. Is arranged inside the cover member 31 in the radial direction. Moreover, the opening 67 opens toward the seat cushion 11a side, and as is clearly shown in FIG. 2 in a plan view, of the plurality of seat springs 20 constituting the cushion side pressure receiving member 19, each other It is arranged between a pair of adjacent seat springs 20.

Further, the other end 66b of the duct 66 slightly protrudes upward from the cushion-side pressure receiving member 19, and the upper end opening edge 67a of the opening 67 is larger than the annular rotating member 30 in a side view. Placed above.

Further, one end 66a of the duct 66 is connected to the blower 65 above the upper end of the annular rotating member 30 so as to overlap the annular rotating member 30 in a plan view, and an intermediate portion of the duct 66 is a side surface. It is arranged so as to visually overlap with the annular rotating member 30, and is accommodated in the accommodating portion 41.

By the way, the operation of the electric motor 53, which is the first electric device, is controlled by the first ECU 70, and the operation of the blower 65, which is the second electric device, is controlled by the second ECU 71. The second ECUs 70 and 71 are located in the accommodating portion 41 at the center of the rotating member 30 in a plan view, and at least a part (all in this embodiment) of the ECUs 70 and 71 are described in a side view. It is arranged at a position overlapping the rotating member 30.

Moreover, the first ECU 70 and the second ECU 71 are arranged in an inclined posture along the second tapered portion 30a of the rotating member 30, and the actuator 50 including the electric motor 53 is provided. The first ECU 70 and the second ECU 71 are attached to the attachment member 58 attached to the rotating member 30 for attachment. That is, the mounting member 58 has a pair of inclined plate portions 58b arranged in the accommodating portion 41 at the center of the rotating member 30 while being inclined along the second tapered portion 30a. The first ECU 70 and the second ECU 71 are attached to the pair of inclined plate portions 58b which are inclined along the second tapered portion 30a and arranged in the accommodating portion 41, respectively.

Like the actuator 50, the first ECU 70 and the second ECU 71 are arranged below the cushion-side pressure-receiving member 19 while avoiding interference with the cushion-side pressure-receiving member 19, and the inclined plate portion 58b. Can be attached to. Moreover, as shown in FIG. 3, the actuator 50 and the mounting member 58 to which the first ECU 70 and the second ECU 71 are mounted are located in front of the lowermost end 19a of the cushion-side pressure receiving member 19 in a side view. The first ECU 70 and the second ECU 71 are located below the cushion-side pressure receiving member 19, and are arranged at positions avoiding directly below the lowermost end 19a of the cushion-side pressure receiving member 19 in a side view. ..

Next, the operation of this embodiment will be described. A circular accommodating portion 41 that opens at least upward is formed in the central portion of the rotating member 30 that constitutes a part of the rotating mechanism 14, and controls the operation of the electric motor 53. A position where the first ECU 70 and the second ECU 71 that controls the operation of the blower 65 are in the accommodating portion 41 in a plan view and at least a part of the ECUs 70 and 71 overlap the rotating member 30 in a side view. By suppressing the upward protrusion of the first ECU 70 and the second ECU 71 from the rotating member 30, the seat cushion 11a is arranged according to the arrangement of the first and second ECUs 70 and 71. While avoiding an increase in height, it is also possible to avoid an increase in size of the vehicle seat device in a direction orthogonal to the rotation axis C of the rotating member 30. Moreover, in this embodiment, since all of the first and second ECUs 70 and 71 are arranged at positions overlapping the rotating member 30 in a side view, the first ECU 70 and the second ECU 70 from the rotating member 30 and the second ECU 70 are arranged. The first ECU 70 and the second ECU 71 can be arranged by suppressing the upward protrusion of the ECU 71 and more effectively suppressing the height of the seat cushion 11a from becoming high.

Further, the rotating member 30 is formed so as to form the accommodating portion 41 in cooperation with the second tapered portion 30a formed so that the diameter becomes larger as it goes upward and the second tapered portion 30a. Formed so as to have a cylindrical fourth side wall portion 30b that rises upward from the upper end portion of the second tapered portion 30a, and a second flange portion 30c that projects outward from the fourth side wall portion 30b. The first and second ECUs 70 and 71 are arranged in an inclined posture along the second tapered portion 30a, so that the first and second ECUs 70 and 71 are above the first and second ECUs 70 and 71 from the rotating member 30. It is possible to more effectively suppress the protrusion to the seat cushion 11a and more effectively suppress the height of the seat cushion 11a.

Further, the electric motor 53 and the first and second ECUs 70 and 71 are attached to the rotating member 30 side, which is the longer of the base member 29 and the rotating member 30 in the vertical direction. Therefore, it is possible to easily secure a space for arranging the electric motor 53 and the first and second ECUs 70 and 71 while suppressing the height of the vehicle seat device from increasing.

Further, since the mounting member 58 arranged inside the outer circumference 30d of the rotating member 30 in a plan view is attached to the rotating member 30, the first and second ECUs 70 and 71 are attached to the mounting member 58. By arranging the mounting members 58 for mounting the first and second ECUs 70 and 71, it is possible to prevent the vehicle seat device from becoming large in the direction orthogonal to the rotation axis C of the rotating member 30.

Moreover, since not only the first ECU 70 and the second ECU 71 but also the electric motor 53 that exerts the power to rotationally drive the rotating member 30 is attached to the mounting member 58, the electric motor 53 is mounted. By arranging the mounting member 58 for this purpose, the operation of the electric motor 53 and the electric motor 53 is controlled while avoiding the increase in size of the vehicle seat device in the direction orthogonal to the rotation axis C of the rotating member 30. It is possible to facilitate the connection with the first ECU 70.

Moreover, by attaching the mounting member 58 to the rotating member 30, when the rotating member 30 rotates, both the electric motor 53 and the first and second ECUs 70 and 71 rotate with respect to the base member 29. Therefore, the connection wiring between the electric motor 53 and the first ECU 70 that controls the operation of the electric motor 53 can be compactly integrated.

Further, the mounting member 58 has an inclined plate portion 58b that is inclined along the second tapered portion 30a of the rotating member 30 and is arranged in the accommodating portion 41, and the first and second ECU 70s. , 71 are attached to the inclined plate portion 58b, so that the first and second ECUs 70 and 71 can be easily attached to the mounting member 58 in an inclined posture along the second tapered portion 30a of the rotating member 30. By attaching it, it is possible to suppress the upward protrusion of the first and second ECUs 70 and 71 from the rotating member 30.

Further, the mounting member 58 is coupled to the second flange portion 30c of the rotating member 30 in front of the rotating axis C of the rotating member 30, and the first and second ECUs 70 and 71 are the seat cushions. Since it is attached to the inclined plate portion 58b at a position that avoids interference with the cushion-side pressure receiving member 19 attached to the seat cushion frame 16 so as to receive a load from above 11a, the vehicle seat device is enlarged in the vertical direction. Can be avoided.

Further, since the electric motor 50 and the first and second ECUs 70 and 71 are arranged so as to avoid directly below the lowermost end 19a of the cushion-side pressure receiving member 19 in a side view, the electric motor 53 and the said electric motor 53 and the said. It is possible to more easily prevent the first and second ECUs 70 and 71 from interfering with the cushion-side pressure receiving member 19. Moreover, the electric motor 50 and the first and second ECUs 70 and 71 are arranged in front of the lowermost end 19a of the cushion-side pressure receiving member 19 and below the cushion-side pressure receiving member 19, and are located on the cushion side. The electric motor 50 and the first and second ECUs 70 and 71 can be arranged by effectively utilizing the space below the pressure receiving member 19.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various design changes are made without departing from the present invention described in the claims. Is possible.

For example, in the above-described embodiment, the first ECU 70 that controls the operation of the electric motor 53 and the second ECU 71 that controls the operation of the blower 65 have been taken up and described. However, the present invention describes the electricity provided in the vehicle seat device. It can be widely applied to an ECU that controls the operation of a device.

Further, in the above-described embodiment, the first and second ECUs 70 and 71 are attached to the attachment member 58 attached to the rotating member 30, but the ECU may be directly attached to the rotating member 30.

11a ... Seat cushion 14 ... Rotation mechanism 16 ... Seat cushion frame 19 ... Cushion side pressure receiving member 19a ... Cushion side pressure receiving member lowest end 29 ... Base member 30 ... Rotating member 30a ・ ・ ・ Tapered part 30b ・ ・ ・ Side wall part 30c ・ ・ ・ Flange part 30d ・ ・ ・ Outer circumference 41 of rotating member ・ ・ ・ Accommodating part 53 ・ ・ ・ Electric motor 58 which is an electric device ・ ・ ・ Mounting member 58b ・.. Inclined plate 65: Blowers 70, 71, which are electrical equipment ... ECU
C ... Rotation axis

Claims (10)

A seat cushion frame (16) that supports the seat cushion (11a), a rotating member (30) that supports the seat cushion frame (16), and a base member (29) that rotatably supports the rotating member (30) from below. ), A rotating mechanism (14) arranged below the seat cushion frame (16), an electric device (53,65), and an ECU (70) that controls the operation of the electric device (53,65). , 71), a circular accommodating portion (41) that opens at least upward is formed in the central portion of the rotating member (30), and the ECU (70, 71) is viewed in a plan view. A vehicle seat device that is located in the accommodating portion (41) and at least a part of the ECU (70, 71) is arranged at a position that overlaps with the rotating member (30) in a side view. The rotating member (30) forms the accommodating portion (41) in cooperation with the tapered portion (30a) formed so that the diameter increases toward the upper side and the tapered portion (30a). It is formed so as to have a cylindrical side wall portion (30b) that rises upward from the upper end portion of the tapered portion (30a) and a flange portion (30c) that projects outward from the side wall portion (30b). The vehicle seat device according to claim 1, wherein the ECUs (70, 71) are arranged in an inclined posture along the tapered portion (30a). A mounting member (58) arranged inside the outer circumference (30d) of the rotating member (30) in a plan view is attached to the rotating member (30), and the ECU (70, 71) is attached to the mounting member (30, 71). 58) The vehicle seat device according to claim 2, wherein the seat device is attached to the vehicle. The mounting member (58) has an inclined plate portion (58b) that is inclined along the tapered portion (30a) and arranged in the accommodating portion (41), and the ECU (70, 71) is said. The vehicle seat device according to claim 3, wherein the seat device is attached to an inclined plate portion (58b). The mounting member (58) is coupled to the collar portion (30c) of the rotating member (30) in front of the rotating axis (C) of the rotating member (30), and the ECU (70, 71) It is attached to the inclined plate portion (58b) at a position that avoids interference with the cushion-side pressure receiving member (19) attached to the seat cushion frame (16) so as to receive a load from above the seat cushion (11a). The vehicle seat device according to claim 4. The vehicle seat device according to claim 5, wherein the ECUs (70, 71) are arranged so as to avoid directly below the lowermost end (19a) of the cushion-side pressure receiving member (19) in a side view. An electric motor (53) that exerts power to rotationally drive the rotating member (30) and an ECU (70, 71) are attached to one side of the base member (29) and the rotating member (30). The vehicle seat device according to claim 1 or 2. The claim is characterized in that the electric motor (53) and the ECU (70, 71) are attached to the side of the base member (29) and the rotating member (30) having a larger length in the vertical direction. 7. The vehicle seat device according to 7. The electric motor (30) is attached to a mounting member (58) which is arranged inside the outer circumference (30d) of the rotating member (30) and is attached to one of the base member (29) and the rotating member (30) in a plan view. 53) The vehicle seat device according to claim 7 or 8, wherein the ECU (70, 71) is attached. The vehicle seat device according to claim 9, wherein the mounting member (58) is mounted on the rotating member (30).

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