JP2002186540A - Electrically-driven ottoman apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electrically-driven ottoman apparatus wherein a developing mechanism or a seat slide apparatus can be prevented from being exposed by stretching a protective sheet between an ottoman body and a cushion frame, and the protective sheet can be easily and rapidly stored under a sheet cushion when the ottoman body is stored. SOLUTION: A linear drive mechanism 22 constituting the developing mechanism and a support frame 12 to support a slide frame 14 of an ottoman body 10 are mounted to an ottoman mounting member 6o formed in a sheet slide mechanism 6. The ottoman body 10 is guided in an approximately horizontal state while it is being moved forward by a first link mechanism 9 when the body 10 is developed, while a second link mechanism 28 is driven by the mechanism 22. A protective sheet 4 is disposed between the rear end of the body 10 and the forward end of a cushion frame 5. When the body 10 is stored, the sheet 40 is drawn into the underside of a sheet cushion 2 by an elastic body 43 being a drawing-in means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric ottoman device in which an ottoman is provided at the front of a seat cushion so as to be deployable forward, and the ottoman is moved between a footrest position and a storage position by a deployment mechanism.

[0002]

2. Description of the Related Art As a conventional electric ottoman device, there is one described in, for example, Japanese Patent Application Laid-Open No. 9-206157. In this conventional example, a movable mechanism of a slider disposed to extend in the front-rear direction is moved back and forth by an electric drive mechanism to operate a link mechanism composed of six link arms formed in a flat plate shape. There is described an apparatus for changing the posture of a footrest of a chair in which the posture of the footrest can be changed between a storage posture and a footrest posture.

[0003]

However, in the conventional posture changing device, the posture of the footrest, that is, the ottoman, can be changed between the storage posture and the footrest posture by the electric drive mechanism. Since the link mechanism connecting the footrest and the slider is configured by combining six flat link arms, there is an unsolved problem that the configuration is complicated.

For this reason, the ottoman body is supported by a link attached to the cushion frame so as to be deployable between a footrest position and a storage position, and the ottoman body is deployed by a deployment mechanism provided on a seat slide. It has been considered that the ottoman body is expanded with a simple configuration to provide a simple configuration.

According to this configuration, the electric ottoman device can have a simple configuration. However, since the link for deploying the ottoman body is attached to the cushion frame, it is necessary to secure the rigidity of the cushion frame. There is an unsolved problem that the weight increases and it cannot be applied to a configuration including a sheet lifter. In addition, since only the electric ottoman device is deployed, when a passenger compartment has a narrow cabin space, such as a passenger car, a seated person with long legs feels cramped and is required to tilt the seat. .

[0006] Further, when the electric ottoman device is deployed, the deployment mechanism and the seat slide device are exposed from between the ottoman body and the cushion frame, which may deteriorate the appearance, and small objects may fall between the ottoman body and the cushion frame. Or have the risk of pinching small items or occupants,
When the protective sheet is stretched between the ottoman body and the cushion frame, the deployment mechanism and the seat slide device can be prevented from being exposed, but the protective sheet does not fit below the seat cushion when the ottoman body is stored. In addition, there is a fear that a part of the protective sheet protrudes outside and deteriorates the appearance.

SUMMARY OF THE INVENTION An object of the present invention is to focus on the unsolved problems of the prior art, and the entire electric ottoman device is supported by supporting, on a seat slide side, a link that supports the ottoman body so as to be deployable. The ottoman body and the seat can be tilted with a simple configuration, and a protective sheet is stretched between the ottoman body and the cushion frame to provide a deployment mechanism and seat slide. The device can be prevented from being exposed, and the protective sheet can be easily and quickly stored under the seat cushion during the storing operation of the ottoman body, and a part of the protective sheet may protrude to the outside and deteriorate the appearance. An object of the present invention is to provide a motor-driven ottoman device without the need.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an electric ottoman device according to a first aspect of the present invention has an ottoman expandably connected to a front portion of a seat cushion. The ottoman is deployed from the storage position stored in the storage recess formed in the front part of the seat cushion to the foot mounting position in the electric ottoman device in which the ottoman is deployed between the foot rest position and the storage position by the electric drive mechanism. The ottoman itself,
A deployment mechanism having an electric motor for moving the ottoman body between the storage position and the foot placement position, a seat slide mechanism for supporting the deployment mechanism, and a seat tilting mechanism for tilting the seat cushion in cooperation with the deployment mechanism. And a protective sheet that covers the deployment mechanism is provided between a rear end of the ottoman body and a front end of a cushion frame of a seat cushion.

In the electric ottoman device according to the first aspect of the invention, the electric ottoman device can be formed as an independent unit by separating the ottoman device from the cushion frame by supporting the deployment mechanism for deploying the ottoman body by the seat slide mechanism. Also, since the seat tilting mechanism is provided in cooperation with the deployment mechanism, the cushion frame is tilted at the time of deployment of the ottoman body, and by tilting the entire seat, even if the seated person has long legs,
Since the protective sheet that can take a relaxed posture and covers the deployment mechanism is provided between the rear end of the ottoman body and the front end of the cushion frame of the seat cushion, the deployment mechanism and the seat slide device are exposed. Can be prevented.

Further, the electric ottoman device according to claim 2 is characterized in that the protective sheet is retracted below the seat cushion by retracting means when the ottoman body is stored.

According to the second aspect of the present invention, the protective sheet is retracted below the seat cushion by the retracting means during the storage operation of the ottoman main body. The protective sheet can be prevented from protruding outside and deteriorating the appearance.

Further, the electric ottoman device according to claim 3 is characterized in that the retracting means is formed of an elastic body having one end connected to an intermediate portion on the back side of the protective sheet and the other end attached to the unfolding mechanism. And

According to the third aspect of the present invention, the retracting means is formed of an elastic body having one end connected to the intermediate portion on the back surface side of the protective sheet and the other end attached to the deployment mechanism. During the storing operation, the protective sheet can be simply and quickly stored below the seat cushion by the contraction of the elastic body, and it is possible to prevent a part of the protective sheet from protruding outside and deteriorating the appearance.

According to a fourth aspect of the present invention, there is provided an electric ottoman device, wherein the ottoman main body has a sliding member which is disposed to be able to move forward and backward, and the deploying mechanism has a movable member which is moved in the vehicle longitudinal direction by an electric motor. A linear moving mechanism supported by the mounting member; a first link mechanism rotatably supported by a support bracket mounted on the mounting member that expands the ottoman body from a storage position to a footrest position; A second link mechanism coupled to the mover of the linear movement mechanism to expand the ottoman body from the storage position to the foot rest position and to cause the sliding body to project forward from the ottoman body; The seat tilting mechanism is characterized by comprising a link mechanism disposed between the first link mechanism and the cushion frame.

[0015] In the invention according to claim 4, the ottoman main body has a sliding body arranged to be able to advance and retreat.
The deployment mechanism has a movable member that moves in the vehicle front-rear direction by an electric motor, and is attached to the attachment member that deploys the ottoman body from a storage position to a footrest position, and a linear movement mechanism that is supported by the attachment member. A first link mechanism that is rotatably supported by the support bracket, and the ottoman body is connected to the mover of the linear movement mechanism to expand the ottoman body from the stowed position to the foot rest position, and to move the slide body to the ottoman. A second link mechanism for projecting forward from the main body, wherein the seat tilting mechanism includes:
Since it is constituted by the link mechanism disposed between the first link mechanism and the cushion frame, the linear moving mechanism and the first link mechanism are supported by the mounting member, and the moving element of the linear moving mechanism is supported by the moving member of the linear moving mechanism. By providing the second link mechanism, the electric ottoman body can be reliably unitized, and the link of the seat tilting mechanism is disposed between the first link mechanism of the deployment mechanism and the cushion frame. When the ottoman body is moved from the storage position to the deployed position by the first link mechanism, the cushion frame can be tilted in accordance with the rotation of the first link mechanism. Can be prevented from being exposed, or a part of the protective sheet can be prevented from protruding outside and deteriorating the appearance.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an electric ottoman device according to the present invention will be described with reference to the drawings. 1 to 6 show an electric ottoman device according to an embodiment of the present invention. FIG. 1 is a schematic perspective view showing an embodiment of the present invention, and FIG. 2 is a side view of FIG. In the figure, reference numeral 1 denotes a passenger seat of a vehicle, which includes a seat cushion 2 and a seat back 3 which can be inclined at a rear end thereof by, for example, a reclining mechanism (not shown), and a storage recess 2 a formed at a front end of the seat cushion 2. And a ottoman 4 rotatably disposed between the storage position stored in the storage device and the foot mounting position shown by the dashed line.

Here, as shown in FIG. 4, the seat cushion 2 has a cushion frame 5 disposed therein.
Are supported by a pair of left and right seat slide mechanisms 6 disposed on the floor of the vehicle body and extending in the front-rear direction so as to be rotatable around the rear end. Reference numeral 2b is a pad material, 2c
Is a skin material. Cushion frame 5 as shown in FIG.
Mounting portions 5a and 5b are formed at the front and rear positions of.

The seat slide mechanism 6 includes a pair of fixed guide rails 6a and 6b extending in the front-rear direction, which are disposed at predetermined intervals in the left-right direction on the vehicle body. The drive mechanism 6f includes slide rails 6c and 6d that are slidably guided, and an electric motor 6e that slides the slide rails 6c and 6d with respect to the fixed guide rails 6a and 6b.

The seat slide mechanism 6 includes support brackets 6g and 6h formed at front end positions of the slide rails 6c and 6d, and a cushion frame 5 formed at rear end positions of the slide rails 6c and 6d. Support brackets 6m and 6n for rotatably supporting, and an ottoman mounting member 6o bridged between the support brackets 6g and 6h are provided.

Here, the ottoman mounting member 6o
Are supporting pipes 6p and 6q bridged on the front end side and the rear end side of the upper ends of the supporting brackets 6g and 6h, respectively, a central mounting bracket 6r bridged between central positions of the supporting pipes 6p and 6q, and Left and right mounting brackets 6s and 6t are bridged in parallel to the left and right positions of the bracket 6r.

Then, the cushion support bracket 6m,
6n, a rear mounting portion 5b on the rear end side of the cushion frame 5
Are rotatably supported, and the ottoman 4 is mounted on the ottoman mounting member 6o.

As shown in FIGS. 3 and 6, the ottoman 4 is fixed to the lower surface side of the left and right mounting brackets 6s and 6t of the ottoman mounting member 6o so as to project forward and downward, respectively, for example, about 30 degrees with respect to a horizontal plane. An ottoman main body 10 is supported by a tiltable support arm 8 via a first link mechanism 9 so as to be deployable.

The first link mechanism 9 includes an ottoman main body rotatably supported by the left and right support arms 8 at predetermined intervals, as is apparent with reference to FIGS. 4 to 6. 10 is substantially perpendicular to the support arm 8, the tip is bent inward to form a U-shaped pivot link 9 A and the crank-shaped pivot link 9 A, respectively.
B, and the distal ends of these rotary links 9A and 9B are rotated by a support arm 13 attached to the left and right rear ends of a U-shaped support frame 12 having an open front end disposed on the ottoman body 10. They are freely connected.

Here, the connection relationship between the rotating links 9A and 9B is, as shown in FIGS.
Is stored in the storage recess 2 a of the seat cushion 2, the rotation links 9 A and 9 B are in proximity to each other and are inclined, for example, by about 30 ° with respect to the horizontal plane, and a straight line connecting the connection points with the support arm 8 Support arm 1 for
The straight line connecting the connection points for 3 intersects,
And the distance between the connecting points of the supporting arms 8
The distance between the connection points 3 is selected to be short, so that the ottoman body 10 is maintained in a state of being inclined at about 70 ° with respect to the horizontal line.

When the ottoman main body 10 is unfolded forward from the storage position, as shown in FIG. 5, the rotation links 9A and 9B are gradually separated from each other by the counterclockwise rotation. , The ottoman body 10 gradually decreases in inclination angle toward a state close to a horizontal state, and the bases of the rotating links 9A and 9B are supported arms 8 respectively.
The ottoman body 10 and the support arm 8 are substantially parallel to each other at a substantially right angle.

The support arm 8 is attached to the rotation link 9B.
A mounting portion 9a is formed for mounting a seat tilting mechanism 35 described later, whose side bent portion bulges out on the side opposite to the support arm 13.

Further, the ottoman body 10 includes a U-shaped support frame 12 described above, and a sliding frame 14 as a box-shaped sliding body having an open rear end surface guided slidably by the support frame 12. The sliding frame 14 is composed of a synthetic resin frame 16 attached to the front end surface of the sliding frame 14 via a wire frame 15, a pad 17 covering the synthetic resin frame 16, and a trim member 18 covering the pad 17. ing.

On the other hand, a support case 21 having an inverted U-shaped section extending downward and rearward is provided on the center mounting bracket 6r of the ottoman mounting member 6o, and a linear drive mechanism 22 is provided in the case 21. Has been established.

The linear drive mechanism 22 has a gear unit 24, which is pivotally mounted on the rear end side of the case body 21 and reduces the rotational driving force of an electric motor 23, and has an output rotary shaft 25 projecting from its front end. The other end of the double screw shaft 26 whose front end is rotatably supported by the front end of the case body 21 is connected. A nut 27 as a mover is screwed to the double screw shaft 26.

A second link mechanism 28 for moving the ottoman body 10 is connected to the nut 27. The second link mechanism 28 includes a main link 2 extending forward which is rotatably mounted on a nut 27 in a vertical plane.
9 Reference numerals 25A and 25B are stoppers for the nut 27.

The distal end of the main link 29 is rotatably disposed on the connecting rod 14b of the sliding frame 14 of the ottoman body 10 described above.
Is rotatably connected to a free end of a rotating link 30 which is parallel to the sliding frame 14 in the storage position.

A support bracket 31 projecting from the lower end of the support frame 12 of the ottoman body 10 at a position slightly rearward from the distal end of the main link 29 by a predetermined distance is rotatably connected.

Here, the linear drive mechanism 22, the first link mechanism 9, and the second link mechanism 28 constitute a deployment mechanism. Further, a seat tilting mechanism 35 is disposed between the mounting portion 9 a of the rotation link 9 B of the first link mechanism 9 and the front end side of the cushion frame 5.

The seat tilting mechanism 35 includes a pair of left and right first links 36 whose one ends are rotatably connected to the mounting portions 9a of the left and right rotation links 9B of the first link mechanism 9.
A connecting rod 37 fixedly bridged between the other ends of the first link 36 and bridged and both ends protruding outward;
7, a pair of left and right second links 38 each having one end fixed to the outside of the first link 36;
Mounting bracket 39 rotatably mounted on the other end of the
The shape is shaped like a letter when viewed from the side.

When the mounting bracket 39 is fixed to the front mounting portion 5a on the front end side of the cushion frame 5, and the ottoman body 10 is in the storage position, the connecting rod 37 is connected to the supporting pipe 6p of the ottoman mounting member 6o. In this state, the upper surface of the seat cushion 2 is fixed to the front end side, and the fixed guide rails 6a, 6b of the seat slide mechanism 6 are arranged as shown in FIG.
Is set so as to be inclined downward by a predetermined angle θ1 with respect to.

The first link mechanism 9, the linear drive mechanism 24, and the second link mechanism 29 are provided between the front end lower end face of the cushion frame 5 and the rear end face of the pad 17 of the ottoman body 10 when deployed. A protection sheet 40 that covers the deployment mechanism to be used is provided. The protective sheet 40 is provided with a sewing portion 41 formed by joint stitching in the middle between the front and rear positions, and a pair of elastic members 43 made of elastic band-like rubber or the like having elasticity are provided on the sewing portion 41 as a drawing means. Note that the elastic body 43 as the retracting means is not limited to the belt-shaped rubber, and a coil spring or the like may be used.

One end of the elastic body 43 is connected to an intermediate portion on the back surface side of the protective sheet 40 by sewing or the like, and the other end of the elastic body 43 is fixed to the support pipe 6p of the ottoman attachment member 6o on the deployment mechanism side. ing. With the elastic body 43 having elasticity as the retracting means, the protective sheet 40 can be easily and quickly stored under the seat cushion by the contraction of the elastic body 43 during the storing operation of the ottoman main body 10. It is possible to prevent the portion from protruding outside and deteriorating the appearance. The elastic body 4
The other end of 3 can be appropriately fixed to the deployment mechanism side.

Next, the operation of the above embodiment will be described.
Now, as shown in FIG. 4, a nut 27 is screwed on the base side of the double screw shaft 26, and in this state, the ottoman body 10 is inserted into the storage recess 2 a of the seat cushion 2 via the main link 29. It is assumed that the seat cushion 2 is held at the storage position substantially along the front end of the seat cushion 2 inclined at about 70 ° with respect to the horizontal line, and that the upper surface of the seat cushion 2 is in the normal seating position inclined downward and downward by a predetermined angle θ1. .

In this state, the sliding frame 14 of the ottoman main body 10 has penetrated all the way into the U-shaped support frame 12 and is supported by the pad 17.
Is completely covered, the upper end of the pad 17 is in contact with the lower surface of the seat cushion 2, the width of the pad 17 in the vertical direction is less than the minimum height of the seat cushion 2, and the lower end of the pad 17 is Away from

The rotation link 9 of the first link mechanism 9
B is inclined 45 degrees rearward and upward with respect to the fixed guide rails 6a and 6b of the slide mechanism 6, and connects the rotation center point of the support frame 8 with respect to the rotation link 36 of the mounting portion 9a. The line is substantially parallel to the fixed guide rails 6a and 6b, the pivot center of the pivot link 36 is at the lowest position, and the connecting rod 37 of the seat tilting mechanism 35 is in front of the support pipe 6p of the ottoman attachment member 6o. In the vicinity of the side, the cushion frame 5 is supported so as to be in a normal sitting position.

In this stored state, the protection sheet 40 is stored below the seat cushion due to the contraction of the elastic body 43. In this stored state, the output rotation shaft 25 of the gear unit 24 is rotated, for example, clockwise by driving the electric motor 23, for example, in the forward direction, so that the double screw shaft 2
When the nut 6 is rotated clockwise, the nut 27 is correspondingly rotated.
Is moved forward.

As a result, the rotating links 9A and 9B rotate counterclockwise, whereby the inclination angle of the straight line connecting the connecting points of the rotating links 9A and 9B on the support arm 12 gradually becomes horizontal. The ottoman body 10 gradually moves toward a horizontal state while being pushed forward in accordance with the direction.

When the inclination angle of the ottoman main body 10 gradually becomes horizontal, the angle between the main link 29 and the support bracket 31 of the ottoman main body 10 becomes gradually larger, so that the rotation link 30 is used. The sliding frame 14 is gradually slid forward, and the pad 17 moves forward. During this forward movement, the protection sheet 40 is pulled out against the contraction of the elastic body 43.

Then, as shown in FIG. 5, when the nut 27 advances to the front end side of the double screw shaft 26, it comes into contact with the stopper 25B at the advanced position and stops. When the energization of the electric motor 23 is stopped, the rotation of the double screw shaft 26 by the gear unit 24 is stopped, the forward movement of the ottoman 4 is stopped, and the ottoman 4 is stopped at a predetermined footrest position.

At this time, as shown in FIG. 5, the pad 17 of the ottoman body 10 protrudes largely forward, and the pad 17 and the trim material 18 can support the calf of the occupant, and the occupant can relax. And the space between the pad 17 of the ottoman body 10 and the cushion frame 5 is covered with the protective sheet 40, so that the appearance is good and the first link mechanism 9 and the second
Insertion of fingers and toes into the link mechanism 28 can be reliably prevented.

When the ottoman body 10 is unfolded, the first
When the pivot link 9B of the link mechanism 9 rotates counterclockwise, the pivot link 36 of the seat tilting mechanism 35 moves upward, and accordingly, the rear mounting portion 5b of the cushion frame 5 Are support brackets 6m and 6n
Of the upper surface of the seat cushion 2 with respect to the slide mechanism 6, the inclination angle θ2 of the upper surface of the seat cushion 2 with respect to the slide mechanism 6 becomes larger than the inclination angle θ1 at the time of normal seating. As a result, the seated person tilts backward in the clockwise direction. For this reason, by increasing the distance between the front end of the seat cushion 2 and the rear end of the pad 17 of the ottoman body 10, even a long-seat occupant can take a relaxed posture with plenty of room.

To return from the foot rest position to the stowed position, the electric motor 23 is driven in reverse to rotate the gear unit 2.
4 by rotating the output rotation shaft 25 in a counterclockwise direction, the nut 27 is retracted, and the main link 29 connected to the nut 27 is retracted, so that the ottoman body 10 is moved from the footrest position of FIG. The pad 17 moves so as to cover the support frame 12 by gradually inserting the slide frame 14 into the support frame 12 while moving backward while the inclination angle gradually increases. Further, the protection sheet 40 can be easily and quickly stored under the seat cushion 2 by the contraction of the elastic body 43.

Thereafter, when the nut 27 reaches the storage position shown in FIG. 4, it comes into contact with the stopper 25A and stops. The energization of the electric motor 23 is stopped and its rotation is stopped, and the rotation of the output rotary shaft 25 of the gear unit 24 is stopped accordingly.
The rotation of the nut 6 is also stopped, the retraction of the nut 27 is stopped, and the ottoman 4 is stopped at the storage position where the ottoman 4 is stored in the storage recess 2 a of the seat cushion 2 with the pad 17 completely covering the support frame 12.

As described above, according to the above-described embodiment, by rotating the double screw shaft 26 to move the nut 27 forward and backward, the ottoman body 10 is extended forward and the sliding frame 14 is slid forward. And rotation of the ottoman 4 and forward movement can be simultaneously performed with a simple link mechanism.

Further, since the ottoman 4 is stored in the storage recess 2a formed in the seat cushion 2 at the storage position, it is possible to prevent the free space at the foot of the occupant from becoming narrow.

When the ottoman 4 is unfolded, the seat tilting mechanism 35 causes the rear mounting portion 5 of the cushion frame 5 to move.
By rotating clockwise around the upper ends of the support frames 6m and 6n, the distance between the front end of the seat cushion 2 and the rear end of the pad 17 of the ottoman body 10 can be widened when deployment is completed, and Even a long seated person can take a relaxed posture without feeling cramped.

Further, a deployment mechanism for deploying the ottoman main body 10 is supported by an ottoman mounting member 6o formed on the seat slide mechanism 6, and is supported independently of the seat cushion 2, so that the ottoman 4 can be moved. It can be unitized, can be easily assembled, can easily perform trim processing of the skin material 2c of the seat cushion 2, and can be easily applied to different vehicle models. Parts can be shared.

Further, since the ottoman body 10 is supported by the first link mechanism 9 having the pair of rotating links 9A and 9B, the ottoman body 10 is pushed forward when the ottoman body 10 is unfolded forward from the storage position. Since the inclination angle is gradually reduced while the ottoman body 10 is rotatably supported at one point, the amount of forward projection can be increased.

In the above embodiment, the case where the rotating link 9A is formed in the shape of a letter and the rotating link 9B is formed in the shape of a crank has been described. However, the present invention is not limited to this. The link can be formed in any shape as long as the link is configured.

Further, in the above-described embodiment, the case where the seat tilting mechanism 35 is formed in the shape of a letter when viewed from the side has been described. However, when there is room in space, the sheet tilting mechanism 35 is formed in a straight line when viewed from the side. The pivot links 36 and 38 can also be integrated if space permits.

Furthermore, in the above-described embodiment, the pad 17 which is placed on the sliding frame 14 and serves as a cushion portion
Has been described, but the present invention is not limited to this, and a footrest may be formed on the support frame 12 to form a cushion portion.

Further, in the above embodiment, the case where the double screw shaft 26 is applied as the linear moving mechanism has been described, but the present invention is not limited to this, and a single screw shaft or a triple screw shaft is applied. It is also possible to apply a ball screw instead of the screw shaft.

[0058]

As described above, according to the electric ottoman device of the first aspect, the electric ottoman device is separated from the cushion frame by supporting the deployment mechanism for deploying the ottoman body by the seat slide mechanism. It can be an independent unit, and a seat tilting mechanism is provided in cooperation with the deployment mechanism, so that the cushion frame is tilted when the ottoman body is deployed, and the entire seat is tilted, so that long legs can be seated. Since the protective sheet covering the deployment mechanism is disposed between the rear end of the ottoman body and the front end of the cushion frame of the seat cushion, the deployment mechanism And the seat slide device can be prevented from being exposed.

According to the electric ottoman device of the present invention, the protective sheet is retracted below the seat cushion by the retracting means during the operation of storing the ottoman main body. The protective sheet can be easily and quickly stored downward, and it is possible to prevent a part of the protective sheet from protruding outside and deteriorating the appearance.

Further, according to the electric ottoman device according to the third aspect, the retraction means is formed of an elastic body having one end connected to the intermediate portion on the back surface side of the protective sheet and the other end attached to the unfolding mechanism. In addition, the protective sheet can be easily and quickly stored under the seat cushion by the contraction of the elastic body during the storing operation of the ottoman main body, and it is possible to prevent a part of the protective sheet from protruding outside and deteriorating the appearance.

Further, according to the electric ottoman device according to the fourth aspect, the ottoman main body has a sliding member disposed so as to be able to move forward and backward, and the deploying mechanism is moved by the electric motor in the longitudinal direction of the vehicle. And a first link rotatably supported by a support bracket mounted on the mounting member for extending the ottoman body from a storage position to a foot-loading position. And a second link mechanism connected to the mover of the linear movement mechanism for expanding the ottoman body from the storage position to the foot rest position side and for projecting the sliding body forward from the ottoman body. Since the seat tilting mechanism is constituted by a link mechanism provided between the first link mechanism and the cushion frame, the mounting mechanism is not provided. By supporting the linear movement mechanism and the first link mechanism on the bar and providing the second link mechanism on the mover of the linear movement mechanism, the electric ottoman body can be reliably unitized and the unfolding mechanism of the unfolding mechanism can be formed. Since the link of the seat tilting mechanism is provided between the first link mechanism and the cushion frame, when the ottoman body is moved from the storage position to the deployed position by the first link mechanism, The cushion frame can be tilted with the rotation, and the protection sheet can prevent the unfolding mechanism and the seat slide device from being exposed, or a part of the protection sheet protrudes to the outside to deteriorate the appearance. Can be prevented.

According to the present invention, the link that supports the ottoman body so as to be deployable is supported on the seat slide side, so that the entire electric ottoman device is independent of the cushion frame, and the deployment of the ottoman body is simplified with a simple configuration. The seat can be tilted, and a protective sheet is stretched between the ottoman body and the cushion frame to prevent the deployment mechanism and the seat slide device from being exposed. It is possible to easily and quickly store the protection sheet below the seat cushion, and it is possible to obtain an electric ottoman device in which a part of the protection sheet does not protrude to the outside and the appearance may be deteriorated.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a schematic configuration of an embodiment of an electric ottoman device according to the present invention.

FIG. 2 is a right side view of FIG.

FIG. 3 is an exploded perspective view showing the frame configuration of FIG. 1;

FIG. 4 is a cross-sectional view of the electric ottoman device according to the present invention in a state where the ottoman is in a storage position.

FIG. 5 is a cross-sectional view of the electric ottoman device according to the present invention in a state where the ottoman is at a footrest position.

FIG. 6 is an exploded perspective view of a seat tilting mechanism and a support frame of the electric ottoman device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seat 2 Seat cushion 2b Pad material 2c Skin material 3 Seat back 4 Ottoman 5 Cushion frame 5a Attachment part 5b Attachment part 6 Seat slide mechanism 6o Ottoman attachment member 8 Support arm 9 First link mechanism 9A Rotating link 9B times Dynamic link 9a Attachment section 10 Ottoman body 12 Support frame 14 Sliding frame 17 Pad 22 Linear drive mechanism 23 Electric motor 24 Gear unit 25A Stopper 25B Stopper 26 Double screw shaft 27 Nut 28 Second link mechanism 29 Main link 30 Rotation Link 31 Support bracket 35 Seat tilting mechanism 36 First link 37 Connecting rod 38 Second link 39 Mounting bracket 40 Protective sheet 41 Sewing part 43 Elastic body

Claims (4)

[Claims] 1. An electric ottoman device in which an ottoman is expandably connected to a front portion of a seat cushion, and the ottoman is expanded between a footrest position and a storage position by an electric drive mechanism. A deployment mechanism having an ottoman body that is deployed from a storage position stored in a storage recess formed in a front part of the ottoman to a footrest position, an electric motor that moves the ottoman body between the storage position and the footrest position, A seat slide mechanism that supports a deployment mechanism; and a seat tilting mechanism that tilts the seat cushion in cooperation with the deployment mechanism, wherein the deployment is performed between a rear end of the ottoman body and a front end of a cushion frame of the seat cushion. An electric ottoman device comprising a protection sheet for covering a mechanism. 2. The electric ottoman device according to claim 1, wherein the protective sheet is retracted below the seat cushion by retracting means when the ottoman body is stored. 3. The electric ottoman according to claim 2, wherein one end of the pull-in means is connected to an intermediate portion on the back surface side of the protective sheet, and the other end is made of an elastic body attached to the deployment mechanism side. apparatus. 4. The ottoman main body has a sliding member arranged to be able to move forward and backward, the deploying mechanism has a mover that moves in the vehicle front-rear direction by an electric motor, and a straight line supported by the mounting member. A moving mechanism, a first link mechanism rotatably supported by a support bracket mounted on the mounting member for expanding the ottoman body from the storage position to the foot-resting position, and a moving element of the linear moving mechanism. A second link mechanism for extending the ottoman body from the storage position to the foot rest position from the storage position and projecting the slide body forward from the ottoman body, wherein the seat tilting mechanism includes the first link. The electric ottoman device according to claim 1 or 2, wherein the electric ottoman device is configured by a link mechanism disposed between the mechanism and the cushion frame.