JP7365550B2 - Vehicle seat device - Google Patents

Description

The present invention has a seat cushion frame that supports a 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 that includes a rotation mechanism, an electric device, and an ECU that controls the operation of the electric device.

2. Description of the Related Art A vehicle seat device in which a rotating member supporting a seat cushion frame is supported by a base member and is rotatable in accordance with the operation of an electric motor is known from, for example, Patent Document 1.

Japanese Patent Application Publication No. 2004-123044

By the way, a vehicle seat device equipped with an electric device such as an electric motor is also equipped with an ECU for controlling the operation of the electric device.In order to secure the space for the ECU, the height of the seat cushion is increased. I want to avoid it.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a vehicle seat device in which the position of the seat cushion can be prevented from increasing due to the arrangement of the ECU.

In order to achieve the above object, the present invention includes a seat cushion frame that supports a 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 comprising a rotation mechanism disposed below a seat cushion frame, an electric device, and an ECU that controls the operation of the electric device, a circular housing that opens at least upwardly in the center of the rotation member. A first feature is that the ECU is located within the accommodating portion in a plan view, and at least a portion of the ECU is disposed at a position overlapping the rotating member in a side view.

Further, in addition to the configuration of the first feature, the present invention provides that the rotary member has a tapered portion formed such that the diameter increases upwardly, and that the housing portion is formed in cooperation with the tapered portion. The ECU is formed to have a cylindrical side wall portion rising upward from the upper end of the tapered portion and a flange portion projecting outward from the side wall portion, and the ECU is inclined along the tapered portion. The second feature is that the device is placed in an oriented posture.

In addition to the configuration of the second feature, the present invention provides that a mounting member disposed inside the outer periphery of the rotating member in plan view is attached to the rotating member, and the ECU is attached to the mounting member. is the third feature.

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

In addition to the configuration of the fourth feature, the present invention provides that the mounting member is coupled to the flange of the rotating member in front of the rotational axis of the rotating member, and the ECU is mounted from above the seat cushion. A fifth feature is that the seat cushion is attached to the inclined plate portion at a position that avoids interference with a cushion-side pressure receiving member attached to the seat cushion frame so as to receive a load from the seat cushion frame.

In addition to the fifth feature of the present invention, a sixth feature of the present invention is that the ECU is disposed so as to avoid being directly under the lowest end of the cushion-side pressure receiving member when viewed from the side.

In addition to the configuration of the first or second feature, the present invention provides an electric motor that generates power for rotationally driving the rotating member, and the ECU is attached to one side of the base member and the rotating member. The seventh feature is that

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

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

Further, in addition to the ninth feature, the present invention has a tenth feature that the attachment member is attached to the rotating member.

Note that 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 tapered portion of the present invention. 30c corresponds to the flange of the present invention, and the electric motor 53 and blower 65 of the embodiment correspond to the electrical equipment of the present invention.

According to the first feature of the present invention, the ECU is housed in a circular housing part that is formed in the center of the rotating member and opens at least upwardly, and at least a part of the ECU is attached to the rotating member in a side view. Since they are located in overlapping positions, by suppressing the upward protrusion of the ECU from the rotating member, it is possible to avoid increasing the height of the seat cushion due to the arrangement of the ECU, and also to prevent the ECU from protruding upward from the rotating member. It is also possible to avoid increasing the size of the vehicle seat device.

According to the second feature of the present invention, the ECU is arranged in an inclined position along the tapered portion of the rotating member, thereby more effectively suppressing the upward protrusion of the ECU from the rotating member. The height of the seat cushion can be more effectively suppressed.

According to the third feature of the present invention, since the ECU is attached to the mounting member that is disposed inside the outer periphery of the rotating member in a plan view and is attached to the rotating member, the ECU can be rotated depending on the arrangement of the mounting member for mounting the ECU. It is possible to avoid increasing the size of the vehicle seat device in the direction orthogonal to the rotational axis of the member.

According to the fourth feature of the present invention, the ECU is mounted on the inclined plate portion of the mounting member so as to be disposed within the housing portion, so that the ECU is placed in an inclined position along the tapered portion of the rotating member. The ECU can be easily attached to the rotary member 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 flange of the rotating member in front of the rotational axis of the rotating member, and is attached to 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 that avoids interference with the cushion-side pressure receiving member, it is possible to avoid increasing the size of the vehicle seat device in the vertical direction.

According to the sixth feature of the present invention, interference between the ECU and the cushion-side pressure-receiving member can be more easily avoided because the ECU is not disposed directly below the lowest end of the cushion-side pressure-receiving member when viewed from the side.

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, it is possible to easily connect the electric motor and the ECU.

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 that has a larger length in the vertical direction, the height of the vehicle seat device is suppressed from increasing. At the same time, 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, since the electric motor and the ECU are attached to the attachment member that is arranged inside the outer periphery of the rotating member in plan view, the arrangement of the attachment member for attaching the ECU and the electric motor It is possible to avoid increasing the size of the vehicle seat device in the direction orthogonal to the rotational axis of the rotating member.

Furthermore, according to the tenth feature of the present invention, since the mounting member is attached to 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 the electric motor Connection wiring with the ECU that controls the operation of the system can be consolidated in a compact manner.

Note that 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 tapered portion of the present invention. 30c corresponds to the flange of the present invention, and the electric motor 53 and blower 65 of the embodiment correspond to the electrical equipment of the present invention.

FIG. 2 is a perspective view showing the vehicle seat device with the seat body omitted. FIG. 2 is a plan view of main parts of the vehicle seat device viewed from above. 3 is a sectional view taken along line 3-3 in FIG. 2. FIG. FIG. 3 is a view of the ride rail and rotation mechanism viewed from the same direction as FIG. 2; FIG. 5 is a view of the slide rail and the rotation mechanism viewed from the opposite side to FIG. 4; 5 is a sectional view taken along line 6-6 in FIG. 4. FIG.

Embodiments of the present invention will be described below with reference to the accompanying drawings. In the following description, "front and back," "left and right," and "up and down" refer to directions viewed from the seated person in a normal posture, with the front direction of the seated person being the front.

First, in FIG. 1, the vehicle seat device includes a pair of slide rails 13 that extend linearly in parallel with each other with an interval in the left-right direction in order to allow the seat body 11 to slide; A rotating mechanism 14 that is rotatably supported and movable along the slide rail 13 is included.

The seat body 11 includes a seat cushion 11a supported by a seat cushion frame 16, and a seat back 11b supported by a seat back frame 17 connected to the seat cushion frame 16 and disposed above the seat cushion 11a. , and a headrest 11c supported by a guide tube 18 provided on the seat back frame 16 and whose height can be adjusted.

The seat cushion frame 16 connects a pair of side frames 16a arranged to extend linearly in the front-rear direction so as to be spaced apart from each other in the left-right direction, and the front ends of the side frames 16a. It has a pan frame 16b, and a rear pipe 16c that connects the rear ends of the pair of side frames 16a.

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

The front end portions of the plurality of seat springs 20 are respectively engaged with 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 made of a resin rear end portion connecting member integrally molded with the seat spring 20 by insert molding. 23, and the rear end connecting member 23 is formed 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 plan view. Moreover, as shown in FIG. 3, the lowermost end 19a of the cushion-side pressure-receiving member 19 is located near the rear pipe 16c provided at the rear end of the seat cushion frame 16, so that most of the cushion-side pressure-receiving member 19 is inclined rearwardly downward and spans between the pan frame 16b and the rear pipe 16c.

Referring again to FIG. 1, the seat back frame 17 includes a pair of seat back side frames 17a extending in the vertical direction so as to be spaced apart from each other in the left and right direction, and an upper end of the seat back side frames 17a. It has an upper frame 17b that connects the parts, and a lower frame 17c that connects the lower end parts of the pair of seat back side frames 17a.

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

4 to 6, the seat cushion frame 16 is placed on the rotation mechanism 14, and the rotation mechanism 14 includes a base member 29 movable 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. Equipped with.

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

The cover member 31 also includes an annular second bottom wall portion 31a that abuts the first bottom wall portion 29a of the base member 29 from above, and a second bottom wall portion 31a that extends slightly upward from the outer periphery of the second bottom wall portion 31a. A cylindrical second side wall portion 31b that rises upwardly, a first tapered portion 31c that is formed so as to increase in diameter as it goes upward, and continues to the upper end of the second side wall portion 31b; 31c has an annular first flat wall portion 31d projecting laterally from the upper end portion, and a cylindrical third side wall portion 31e rising upward from the outer periphery of the first flat wall portion 31d. The second bottom wall portion 31a is coupled to the first bottom wall portion 29a of the base member 29 with a plurality of rivets 32.

The rotating member 30 includes a second tapered portion 30a that is disposed at a position facing the first tapered portion 31c of the cover member 31 from the outside and is formed to have a larger diameter as it goes upward; a cylindrical fourth side wall 30b rising upward from the upper end of the second tapered portion 30a so as to face the third side wall 31e of the cover member 31 from the outside; It has a second flange portion 30c that projects outward from the portion 30b, and the second flange portion 30c is formed in a rectangular shape. Further, a connecting member 33 extending parallel to the slide rail 13 is fastened to the second collar portion 30c with a plurality of first bolts 34 and a plurality of second nuts 35. The side frames 16a of the seat cushion frame 16 are connected to this connecting member 33, and the side frames 16a extend linearly while being lined up at positions spaced apart from each other. It is fixedly disposed on the flange 30c via the connecting member 33.

The rotation member 30 is rotatably supported via a bearing 37 by an annular rotation support portion 36 of the base member 29, and the rotation support portion 36 is connected to a first bottom wall portion of the base member 29. 29a and the first side wall portion 29b are formed to have a substantially L-shaped cross section.

The bearing 37 includes balls 39 held at multiple locations in the circumferential direction of an annular retainer 38, and the first tapered portion 31c of the rotating member 30 has an annular recess 40 for rolling the balls 39. is formed.

Incidentally, a housing portion 41 that is open at least upward is formed in the central portion of the rotating member 30. In this embodiment, the accommodating portion 41 is configured to open upwardly and downwardly by the second tapered portion 30a and the fourth side wall portion 30b of the rotating member 30, The cover member 31 is housed and arranged within the housing portion 41 thereof.

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

The rotating member 30 is rotationally driven by a rotational drive device 49 provided between the rotational member 30 and the base member 29, and the rotational drive device 49 is driven by an actuator 50 and It includes an output gear 51 that rotates with power, and an input gear 52 that meshes with the output gear 51.

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.

Furthermore, the actuator 50 is attached to the longer vertical length of the base member 29 and the rotating member 30, 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 includes an electric motor 53 having a rotation axis extending in the vehicle width direction, a gear box 55 connected to a case 54 of the electric motor 53, and a gear box 55 with the rotation axis parallel to the rotation axis C of the rotation member 30. The output shaft 56 is provided with an output shaft 56 protruding from the gear box 55, and the output gear 51 is provided on the output shaft 56. A gear reduction mechanism (not shown) is housed in the gear box 55, which reduces the rotational power of the electric motor 53 while changing the direction of rotation by 90 degrees and transmitting the rotational power to the output shaft 56. The gear reduction mechanism is configured to include a worm gear so as to prevent rotational power from the output shaft 56 from being transmitted to the electric motor 53.

The rotating member 30 is rotatably driven within a range of 180 degrees, the input gear 52 has a gear portion 52a on its inner circumference, and is formed in an arc shape spanning approximately 180 degrees, and the base member 29 The gear portion 52a is fixed to the lower surface of the inner periphery of the first bottom wall portion 29a so as to protrude radially inward from the inner periphery of the first bottom wall portion 29a. As a result, the gear portion 52a is disposed facing the rotation axis C side of the rotating member 30.

In fixing the input gear 52 to the base member 29, a plurality of A portion of the rivet 32 is used to jointly couple the second bottom wall 31a and the input gear 52 to the first bottom wall 29a with the first bottom wall 29a in between. At this time, a circumferential end of the input gear 52 is arranged at a position corresponding to the rivet 32 in order to couple the second bottom wall 31a and the input gear 52 to the first bottom wall 29a. In this case, in order to avoid unnecessary lengthening of the input gear 52 in the circumferential direction, a notch 57 is formed at the circumferential end of the input gear 52, as shown in FIG. You can do it like this.

Incidentally, a mounting member 58 disposed inside the outer circumference 30d of the rotating member 30 in plan view is attached to the rotating member 30, and the actuator 50 including the electric motor 53 is attached to the mounting member 58. That is, the gear box 55 of the actuator 50 is attached to the upper surface of the attachment member 58, and the output gear 51 is provided on the output shaft 56 that passes through the attachment member 58.

The attachment member 58 is arranged forward of the rotation axis C of the rotation member 30. The attachment member 58 has a coupled plate portion 58a at both ends that is coupled to the upper surface of the third flange portion 30c of the rotating member 30, and extends perpendicularly to the longitudinal direction of the slide rail 13. a pair of coupled plate portions 58a, and a pair of left and right plates whose upper end portions are connected to the coupled plate portions 58a and are inclined so as to be in a downward position as they go inward in the radial direction of the rotating member 30. It is formed so as to integrally include inclined plate portions 58b and a flat support plate portion 58c connecting the lower ends of the inclined plate portions 58b.

Incidentally, the inclined plate portion 58b is disposed within the housing 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 Since the second tapered part 30a of 30 faces the first tapered part 31c from the outside, the inclined plate part 58b is inclined along the second tapered part 30a of the rotating member 30. Then, it is arranged in the housing section 41.

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

Incidentally, an annular slider 60 is interposed between the first tapered part 31c of the cover member 31 and the second tapered part 30a of the rotating member 30, and is in sliding contact with the tapered parts 31c and 30a, respectively. be equipped. The slider 60 includes a vehicle seat device in which the rotary member 30 is rotated by applying human power to the rotation mechanism 14 instead of the electric power generated by the actuator 50, and the cover member 31 and the rotary 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 rotation of the rotating member 30 is used. An annular member constituting a part is interposed between the first tapered portion 31c and the second tapered portion 30a instead of the slider 60.

A blower 65 is arranged behind the front edge of the pan frame 16b that constitutes the front part of the seat cushion frame 16, and a blower 65 is provided at the other end 66b of the duct 66 with one end 66a 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 part of the pan frame 16b via a support member 68, and the opening 67 is located on the radially inner side of the annular rotating member 30 in plan view. and is disposed radially inside the cover member 31. Moreover, the opening portion 67 opens toward the seat cushion 11a side, and as clearly shown in FIG. It is arranged between a pair of adjacent seat springs 20.

Further, the other end 66b of the duct 66 slightly protrudes above 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 side view. placed above.

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

By the way, the operation of the electric motor 53, which is a first electric device, is controlled by a first ECU 70, and the operation of the blower 65, which is a second electric device, is controlled by a second ECU 71. The second ECUs 70 and 71 are located within the housing portion 41 at the center of the rotating member 30 when viewed from above, and at least a portion (all of them in this embodiment) of these ECUs 70 and 71 are located within the housing portion 41 when viewed from the side. 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 The first ECU 70 and the second ECU 71 are attached to the attachment member 58 that is attached to the rotating member 30 for attachment. That is, the mounting member 58 has a pair of inclined plate portions 58b that are inclined along the second tapered portion 30a and arranged in the accommodation portion 41 at the center of the rotating member 30. , the first ECU 70 and the second ECU 71 are respectively attached to the pair of inclined plate parts 58b that are arranged in the housing part 41 so as to be inclined along the second tapered part 30a.

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 mounted on. Moreover, as shown in FIG. 3, the mounting member 58 to which the actuator 50, the first ECU 70, and the second ECU 71 are mounted is located in front of the lowermost end 19a of the cushion-side pressure receiving member 19 in side view. The first ECU 70 and the second ECU 71 are located below the cushion side pressure receiving member 19, and are arranged in a position avoiding directly under the lowermost end 19a of the cushion side pressure receiving member 19 when viewed from the side. .

Next, to explain the operation of this embodiment, a circular housing part 41 that opens at least upward is formed in the center of the rotating member 30 that constitutes a part of the rotating mechanism 14, and controls the operation of the electric motor 53. A first ECU 70 and a second ECU 71 that controls the operation of the blower 65 are located within the housing section 41 in a plan view, and at least a portion of these ECUs 70 and 71 overlap the rotating member 30 in a side view. Therefore, 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 While avoiding an increase in height, it is also possible to avoid an increase in the size of the vehicle seat device in the direction perpendicular to the rotational axis C of the rotating member 30. Moreover, in this embodiment, all of the first and second ECUs 70 and 71 are arranged in a position overlapping the rotating member 30 in a side view, so that the first ECU 70 and the second ECU 70 from the rotating member 30 are It is possible to arrange the first ECU 70 and the second ECU 71 while suppressing the upward protrusion of the ECU 71 and more effectively suppressing an increase in the height of the seat cushion 11a.

Further, the rotary member 30 has a second tapered portion 30a that is formed to have a larger diameter as it goes upward, and forms the accommodation portion 41 in cooperation with the second tapered portion 30a. Formed to have a cylindrical fourth side wall portion 30b rising upward from the upper end of the second tapered portion 30a, and a second collar portion 30c projecting outward from the fourth side wall portion 30b. Since the first and second ECUs 70 and 71 are arranged in an inclined posture along the second tapered portion 30a, the first and second ECUs 70 and 71 are positioned above the rotating member 30. Therefore, the height of the seat cushion 11a can be more effectively suppressed.

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 one 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 an increase in the height of the vehicle seat device.

Further, a mounting member 58 disposed inside the outer circumference 30d of the rotating member 30 in plan view is attached to the rotating member 30, and the first and second ECUs 70 and 71 are attached to the mounting member 58. By arranging the mounting member 58 for mounting the first and second ECUs 70 and 71, it is possible to prevent the vehicle seat device from increasing in size in the direction perpendicular 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 are attached to the attachment member 58, the electric motor 53 is not attached to the attachment member 58. The arrangement of the mounting member 58 for the purpose of controlling the electric motor 53 and the operation of the electric motor 53 while avoiding an increase in the size of the vehicle seat device in the direction orthogonal to the rotational axis C of the rotating member 30. This makes it easier to connect the first ECU 70 to the first ECU 70.

Furthermore, since the mounting member 58 is attached to the rotating member 30, when the rotating member 30 rotates, 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 consolidated in a compact manner.

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 disposed within the housing portion 41, and the mounting member 58 has an inclined plate portion 58b that is arranged within the housing portion 41, and , 71 are attached to the inclined plate portion 58b, the first and second ECUs 70, 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, the first and second ECUs 70 and 71 can be prevented from protruding upward from the rotating member 30.

Further, the mounting member 58 is coupled to the second flange 30c of the rotating member 30 in front of the rotation axis C of the rotating member 30, and the first and second ECUs 70 and 71 are connected to the seat cushion. Since it is attached to the inclined plate part 58b at a position that avoids interference with the cushion side pressure receiving member 19 which is attached to the seat cushion frame 16 so as to receive the load from above, the vehicle seat apparatus becomes larger in the vertical direction. This can be avoided.

Furthermore, since the electric motor 50 and the first and second ECUs 70 and 71 are arranged avoiding being directly under the lowermost end 19a of the cushion-side pressure receiving member 19 in side view, the electric motor 53 and the Interference between the first and second ECUs 70 and 71 with the cushion-side pressure receiving member 19 can be more easily avoided. Moreover, the electric motor 50 and the first and second ECUs 70 and 71 are arranged below the cushion-side pressure-receiving member 19 in front of the lowest end 19a of the cushion-side pressure-receiving member 19. 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 can be made without departing from the scope of the 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 described. It can be widely applied to ECUs that control the operation of equipment.

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

11a... Seat cushion 14... Rotating mechanism 16... Seat cushion frame 19... Cushion side pressure receiving member 19a... Lowermost end of cushion side pressure receiving member 29... Base member 30... Rotating member 30a...Tapered part 30b...Side wall part 30c...Flame part 30d...Outer circumference 41 of rotating member...Accommodating part 53...Electric motor 58 which is an electric device...Mounting member 58b...・・Slanted plate part 65 ・・Blowers 70, 71 ・・ECU which are electrical equipment
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. ) and 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 center of the rotating member (30), and the ECU (70, 71) A vehicle seat device, characterized in that the ECU (70, 71) is located within the housing portion (41) and is disposed at a position where at least a portion of the ECU (70, 71) overlaps the rotating member (30) in a side view. The rotating member (30) has a tapered portion (30a) formed such that the diameter increases upwardly, and the housing portion (41) is formed in cooperation with the tapered portion (30a). and a cylindrical side wall portion (30b) rising upward from the upper end of the tapered portion (30a), and a collar portion (30c) projecting outward from the side wall portion (30b); The vehicle seat device according to claim 1, wherein the ECU (70, 71) is arranged in an inclined position along the tapered portion (30a). A mounting member (58) disposed inside the outer periphery (30d) of the rotating member (30) in plan view is attached to the rotating member (30), and the ECU (70, 71) is attached to the mounting member (58). 58) The vehicle seat device according to claim 2, wherein the vehicle seat device is attached to a vehicle seat device. The mounting member (58) has an inclined plate part (58b) that is inclined along the tapered part (30a) and disposed inside the housing part (41), and the ECU (70, 71) is arranged in the housing part (41). The vehicle seat device according to claim 3, wherein the vehicle seat device is attached to the inclined plate portion (58b). The mounting member (58) is coupled to the flange (30c) of the rotating member (30) in front of the rotational axis (C) of the rotating member (30), and the ECU (70, 71) includes: It is attached to the inclined plate part (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 the load from above the seat cushion (11a). The vehicle seat device according to claim 4, characterized in that: The vehicle seat device according to claim 5, wherein the ECU (70, 71) is arranged so as to avoid being directly under the lowermost end (19a) of the cushion-side pressure receiving member (19) when viewed from the side. An electric motor (53) that generates power to rotationally drive the rotating member (30) and the 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, characterized in that: The electric motor (53) and the ECU (70, 71) are attached to a side of the base member (29) and the rotating member (30) that has a larger vertical length. 7. The vehicle seat device according to 7. The electric motor ( 9. The vehicle seat device according to claim 7 or 8, wherein the vehicle seat device includes: 53) and the ECU (70, 71). The vehicle seat device according to claim 9, wherein the attachment member (58) is attached to the rotating member (30).

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