JP3489664B2 - Electric ottoman device - Google Patents

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 a ottoman is provided at a front portion of a seat cushion such that the ottoman can be deployed forward, and the ottoman is moved between a footrest position and a storage position by an electric drive mechanism. .

[0002]

2. Description of the Related Art As a conventional electric ottoman device, there is one disclosed in Japanese Patent Application Laid-Open No. 9-206157, for example. In this conventional example, a movable rail of a slider arranged so as 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. Accordingly, there is described a posture changing device for 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 that connects the footrest and the slider is configured by combining six flat plate-shaped link arms, there is a drawback that the configuration is complicated.

In order to solve the above-mentioned drawbacks, the present applicant has previously provided a parallel link mechanism for supporting the ottoman body so that it can be deployed from the storage position to the footrest position, and linking the ottoman body with a linear movement mechanism. We have proposed an electric ottoman device which is designed to be deployed and driven.

According to this electric Ottoman device, the electric Ottoman device can be constructed with a simple structure. However, the Ottoman main body is expanded to the footrest position because the Ottoman main body is supported by the parallel link mechanism. In this state, a space is formed between a pair of front and rear links that form the parallel link mechanism, and there is a new unsolved problem that a hand or a finger may be caught in these spaces.

The object of the present invention was made in view of the unsolved problems of the above-mentioned conventional example, and by covering the space between the links with a cover, it is possible to reliably prevent a hand or finger from being caught. The present invention provides an electric ottoman device that can be used.

[0007]

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 connected to a front portion of a seat cushion such that the ottoman can be deployed. In an electric ottoman device in which the electric drive mechanism is deployed between the footrest position and the storage position, the ottoman is deployed from the storage position stored in the storage recess formed in the front portion of the seat cushion to the footrest position. The ottoman body is
A linear moving mechanism including a sliding body that is arranged to move back and forth with respect to the ottoman body, and has a moving element that moves in the vehicle front-rear direction by an electric motor; and deploying the ottoman body from a storage position to a footrest position. A second link mechanism that is connected to the first link mechanism that causes the linear movement mechanism to move the ottoman body from the storage position to the footrest position side and that causes the sliding body to project from the ottoman body to the front side. The first link mechanism includes a pair of left and right support brackets, one end of which is rotatably pivoted at predetermined intervals, and the other end of which is predetermined by the ottoman body. A pair of front and rear links that are rotatably supported at intervals and a pair of links attached to the front and rear links to cover a space between the links when the ottoman body is unfolded. Characterized in that it comprises a cover.

In the electric ottoman apparatus according to the present invention, the sliding body is slidably provided on the ottoman main body, and the sliding body contracts toward the ottoman main body side at the storage position, so that the front end side of the seat cushion is provided. It can be securely stored in the storage recess provided, and it is possible to secure a wide space for the seated person's feet.In this state, the sliding member can be expanded to the footrest position by the link member to expand the ottoman body. It projects further to the front side,
The front space can be expanded by the amount of the storage recess, and a wide foot mounting width can be secured.

Moreover, a cover is provided on each of the pair of front and rear links forming the first link mechanism, and a space portion formed between the pair of front and rear links is provided in a state in which the Ottoman body is expanded to the footrest position by these covers. The cover can reliably prevent the insertion of a hand or a finger into this space.

According to a second aspect of the present invention, in the electric ottoman device according to the first aspect of the invention, the pair of front and rear covers are arranged so as to be offset from each other by a predetermined gap in the left-right direction when seen from a plane. It is characterized in that an overlap portion is formed when it is unfolded when viewed from the horizontal direction.

In the invention according to claim 2, since the covers respectively provided on the pair of front and rear links are arranged so as to be displaced in the left-right direction when viewed from the plane, the ottoman body is returned from the footrest position to the storage position. When the covers are overlapped, both covers do not interfere with each other when the Ottoman body returns, and since the cover has the overlapping portion when unfolded, insertion of hands and fingers can be reliably prevented.

Further, in the electric ottoman device according to a third aspect of the present invention, in the invention according to the first or second aspect, the pair of covers are flat plate portions that cover the space portions located outside the pair of front and rear links. And a hook-shaped mounting portion that is mounted inside the pair of front and rear links formed on the pair of front and rear links of the flat plate portion.

In the invention according to claim 3, the flat plate portion is arranged in parallel with the link member by mounting the hook-shaped mounting portion on the link, and the distance between the flat plate portion and the hook-shaped mounting portion is adjusted. As a result, it is possible to prevent the pair of covers from causing the flat plate portions to be flush with each other and prevent the two from interfering with each other.

Still further, in the electric ottoman device according to a fourth aspect, in the invention according to the third aspect, the flat plate portion is
It is characterized in that an interval adjusting rib and an engaging projection engaging with an engaging hole formed in a pair of front and rear links are provided at a position facing the hook-shaped attaching portion.

According to the fourth aspect of the present invention, the space adjusting rib is brought into contact with the link on the flat plate portion, and the engaging projection is engaged with the engaging hole formed in the link. Interference can be avoided and the link can be easily attached.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a schematic perspective view showing a first embodiment of the present invention, and FIG. 2 is a side view of FIG.
Is a passenger seat of the vehicle, and is a seat cushion 2
And a seat back 3 which can be tilted to the rear end side by, for example, a reclining mechanism (not shown), and can be rotated between a storage position stored in a storage recess 2a formed at the front end of the seat cushion 2 and a footrest position. And an ottoman 4 arranged in the.

Although not described in detail, the seat cushion 2 includes a pair of left and right seat slides 6 extending in the front-rear direction, in which a cushion frame 5 disposed therein is disposed on the floor surface of the vehicle body. It is supported by the height adjustable.

As shown in FIG. 3, the ottoman 4 has a support arm 8 fixed to the left and right end portions of the front end side of the cushion frame 5 so as to project forward and downward, for example, a support arm 8 inclined about 30 ° with respect to a horizontal plane. The ottoman body 10 is rotatably supported via the link mechanism 9 and the auxiliary unit 11 as a sliding body is provided on the ottoman body 10 so as to be movable back and forth.

Further, the first link mechanism 9 is in a state in which the tips thereof are inwardly in a state of being substantially orthogonal to the support arms 8 rotatably supported by the left and right support arms 8 at predetermined intervals. It has a pair of rotary links 9A and 9B that are bent in a rectangular shape and have different lengths.
The front ends of 9B and 9B are rotatably connected to 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 in the Ottoman body 10.

Here, as shown in FIG. 4, the connection relationship between the rotary links 9A and 9B is such that the rotary links 9A and 9B are in a state in which the ottoman body 10 is housed in the housing recess 2a of the seat cushion 2. Are in a state of inclining close to each other, for example, about 70 ° with respect to the horizontal plane, the straight line connecting the connecting points to the supporting arm 8 has an acute angle substantially parallel to the straight line connecting the connecting points to the supporting arm 8, and The support arm 13 with respect to the distance between the connecting points of the arm 8
The distance between the connecting points is selected to be short, whereby the Ottoman body 10 is held in a state of being inclined by about 70 ° with respect to the horizontal line.

As shown in FIG. 6, the rotary link 9A has a bent portion 8 formed on the tip side of the support arm 8.
The caulking pin 8c is attached to the mounting portion 8b protruding outward by a.
It is rotatably supported by the rotary link 9B as shown in FIG.
As shown in 0, a mounting portion 8b formed on the support arm 8
Embossed portion 8d protruding outward so as to be flush with
It is rotatably supported by a crimping pin 8e, and a gap is formed between the two rotation links 9A and 9B and the support arm 8.

When the ottoman body 10 is unfolded forward from the stored position, the rotative arms 9A and 9B are gradually separated by the clockwise rotation, whereby the ottoman body 10 is gradually inclined. Becomes gradual and moves toward a state close to the horizontal state, and the rotation links 9A and 9
The Ottoman body 10 and the support arm 8 are substantially parallel to each other with the bases of the B and the support arm 8 at substantially right angles.

The rotating arms 9A and 9B are shown in FIG.
Also, as shown in FIG. 5, when the Ottoman body 10 is unfolded forward from the storage position to the footrest position, a synthetic resin material having flexibility that covers the space formed between the two rotation arms 9A and 9B. A pair of covers 15A and 1 formed by
5B is installed.

Here, the cover 15A has a flat plate portion 15a for covering the space and an end plate perpendicular to the flat plate portion 15a formed on the front end side of the flat plate portion 15a, as is particularly clear in FIGS. The short plate portion 15c of the flat plate portion 15a has a hook-shaped mounting portion 15d including a flat plate portion 15a formed at an end of the end plate portion 15b and a short plate portion 15c extending in parallel. A pair of engaging protrusions 15e that engage with a pair of engaging holes 9a formed in the rotary links 9A and 9B are formed on a surface facing the flat plate portion 15a and the rotary link. Space adjusting ribs 15f for determining the separation distance from 9A are formed at positions sandwiching the engaging projections 15e, and further engaged with the end edge of the rotating link 9B on the upper end side of the short plate portion 15c. Engaging claws 15g are formed, and the engaging claws 15g are formed. Release window 15h is formed on the opposing flat plate portion 15a, the engaging projection likewise Tan'ita portion 15c 1
A notch 15i for release is formed at a position facing 5e.

The cover 15A is the flat plate portion 15a.
And the pivot link 9A between the hook-shaped mounting portion 15d and the short plate portion 15
While inserting c while bending, the engaging projections 15e are engaged with the engaging holes 9a formed at a predetermined interval, and the outer surface of the rotating link 9A is brought into contact with the interval adjusting rib 15f. , The engaging claw 15g to the rotation link 9B of the rotation link 9A.
By engaging with the side edge, it is integrally attached to the rotation link 9A.

Similarly, the cover 15B also has the same shape as the cover 15A, but the heights of the engaging projections 15e and the gap adjusting ribs 15f are set to be low, and the end plate portion 1 is formed.
By setting the width of 5b to be narrow, it is possible to reduce the width of FIG.
, The flat plate portion 15a is the flat plate portion 1 of the cover 15A.
5a and 5b with the free end sides of the covers 15A and 15B inflated with the ottoman body 10 in the footrest position.
As shown in FIG. 5, the overlaps of a predetermined length are selected so as to completely cover the space formed between the rotating links 9A and 9B.

Further, the auxiliary unit 11 has a rear end opened slidably in the left and right rod portions 12a of the U-shaped support frame 12 having an open front end disposed inside the ottoman body 10. The sliding frame 14 is formed in a rectangular frame shape by the U-shaped pipe 14a and the connecting rod 14b made of an angle member for connecting the open ends thereof, and the sliding frame 14 receives the calf of the seated person. A footrest cushion 14C is attached.

As shown in FIGS. 5, 11 and 12, the footrest cushion 14C is perpendicular to the flat plate portion 14d mounted on the U-shaped pipe 14a of the sliding frame 14 and the three sides excluding the upper side thereof. It is composed of a base member 14f formed of a frame-shaped portion 14e extending slightly, a cushion material 14g arranged on the front surface side of the base member 14f, and a skin material 14h covering the cushion material 14g. .

Here, the base member 14f includes an engaging portion 14i that is rotatably engaged with the left and right positions of the central rod portion CB of the U-shaped pipe 14a, and an engaging portion 14i on the upper surface side of the central rod portion CB. 14j that abuts on the outside of the rod and the connecting rod 1
4b, and a screw hole portion 14m that abuts a mounting bracket 14k formed on the mounting portion 4b.
As shown in FIG. 5, on the inclined line inclined by, for example, 45 ° with respect to the flat plate portion 14d formed at the front end position and the rear end on the lower surface side of the pair of left and right rectangular through holes 14n formed in the flat plate portion 14d of the base member 14f. And contact pieces 14p and 14q which engage with the outer peripheral surface of the central rod portion CB at point symmetrical positions.

Therefore, in order to mount the base member 14f on the sliding frame 14, first, as shown in FIG. 11, the line L connecting the contact pieces 14p and 14q of the engaging portion 14i is located at the center of the U-shaped pipe 14a. Hold in a state of being inclined so as to be orthogonal to the central plane CP passing through the central axis of the rod portion CB,
By pushing in the central rod CB side in this state, the outer peripheral surface of the central rod CB is brought into contact between the contact pieces 14p and 14q, and in this state, the base member 14f is rotated 135 ° clockwise with the engaging portion 14i as a fulcrum. 4 to 5, the screw hole portion 14m is brought into contact with the mounting bracket 14k, and in this state, the screw 14r penetrates the central rod portion CB as shown in FIG. Screw hole 14j
Screw it onto the mounting bracket 14
The footrest cushion 14C is attached to the sliding frame 14 by screwing it into the screw hole 14m through the through hole formed in k.
Can be fixed.

When this screwing is performed, the contact pieces 14p and 14q of the engaging portion 14i are engaged with the central rod portion CB of the U-shaped pipe 14a and are in a temporarily fixed state. Can be done easily.

On the other hand, a support bracket 16B is attached to the lower surface of the center portion in the vehicle width direction on the front side of the cushion frame 5 described above, and a support case body 16C having an inverted U-shaped cross section which extends rearward and downward to the support bracket 16B. And a linear movement mechanism 17 is provided in the case body 16C.

The linear moving mechanism 17 is a case body 16C.
It has a gear unit 19 which is pivotally attached to the rear end side and reduces the rotational driving force of the electric motor 18, and the output rotary shaft 20 protruding from the front end thereof rotatably supports the front end on the front end portion of the case body 16C. The other end of the double screw shaft 22 is connected. The double screw shaft 22 is provided with a nut 23 as a mover.
Are screwed together.

A second link mechanism 25 for moving the ottoman body 10 and the auxiliary unit 11 is connected to the nut 23. This second link mechanism 25
Has a forwardly extending main link 26 rotatably mounted in the nut 23 in a vertical plane.

Here, the main link 26 is formed in a U-shape with its upper end side opened when viewed in cross section, and its left and right side plate portions 26a.
Engaging long holes 26b extending in the longitudinal direction, respectively,
Engaging pins 23a formed on the nut 23 are engaged in the engaging elongated holes 26b.

Then, the link member 26B of the main link 26
Of the pivoting link 27 which is rotatably arranged on the connecting rod 14b of the sliding frame 14 of the auxiliary unit 11 and which is parallel to the sliding frame 14 when the ottoman body 10 is in the storage position. It is rotatably connected to the free end.

Further, the support frame 1 of the ottoman body 10 is provided at a position rearward of a predetermined distance from the tip of the link member 26B.
A support bracket 28 that is formed so as to project toward the lower surface of the center of 2 is rotatably connected.

Next, the operation of the above embodiment will be described.
Now, as shown in FIG. 4, the nut 23 is screwed onto the base side of the double screw shaft 22, 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 26. It is assumed that the seat cushion 2 is held at a storage position that is substantially along the front end portion of the seat cushion 2 that is inclined about 70 ° with respect to the horizontal line.

In this state, the sliding frame 14 of the auxiliary unit 11 is the supporting frame 12 of the ottoman body 10.
The auxiliary unit 11 and the Ottoman main body 10 are brought into close contact with each other, and the footrest cushion portion 14C of the auxiliary unit 11 covers the entire upper part of the Ottoman main body 10, and the width between the two becomes the shortest width. , The height of the seat cushion 2 is less than the minimum height, and the auxiliary unit 1
The lower end of 1 is separated from the floor surface.

Further, as shown in FIG. 9, the covers 15A and 15B attached to the rotary links 9A and 9B have a flat plate portion 15a of the cover 15B on the upper end side where the interval adjusting rib 15f of the cover 15A is not formed. Have been inserted, and they overlap without interfering with each other.

In this stored state, the output rotation shaft 20 of the gear unit 19 is rotated, for example, clockwise by driving the electric motor 18 in the normal direction to rotate the double screw shaft 22.
When is rotated clockwise, the nut 23 is moved forward accordingly.

For this reason, the rotation links 9A and 9B rotate clockwise, which causes the support arm 1 to rotate.
The inclination angle of the straight line connecting the connecting points of the rotating links 9A and 9B at 3 gradually moves in the horizontal direction, and accordingly, the ottoman body 10 also gradually moves toward the horizontal state while being pushed forward.

The inclination angle of the ottoman main body 10 gradually moves in the horizontal direction, and the angle formed by the main link 26 and the support bracket 28 of the ottoman main body 10 gradually increases. The auxiliary unit 11 is gradually slid forward and the ottoman body 1
The width of the entire ottoman 4 including 0 and the auxiliary unit 11 is expanded.

Then, as shown in FIG. 5, when the nut 23 advances to the front end side of the double screw shaft 22, the advanced position is detected by a position sensor such as a limit switch (not shown), which causes the electric motor 18 to move. When the energization is stopped, the rotation of the double screw shaft 22 by the gear unit 19 is stopped, the forward deployment 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 auxiliary unit 11 projects largely forward with respect to the ottoman main body 10, and the calf of the seated person can be supported by the footrest cushion portion 14C, so that the seated person can relax. Can take a posture.

At this foot-mounted position, the rotary links 9A and 9B are substantially parallel to each other, and a space is created between them, but this space is covered by the cover 15A attached to the rotary links 9A and 9B. It is completely covered by 15 and 15B, and it is possible to reliably prevent the insertion of a hand or a finger in the space between the rotation links 9A and 9B.

In order to return from the footrest position to the stowed position, the electric motor 18 is driven in reverse to drive the gear unit 1.
By rotating the output rotary shaft 20 of 9 in the counterclockwise direction, the nut 23 is retracted, and the main link 26 connected to this nut 23 is retracted, so that the ottoman main body 10 moves from the footrest position in FIG. The sliding frame 14 of the auxiliary unit 11 moves toward the rear while the inclination angle gradually increases, and the supporting frame 1 of the ottoman body 10 moves.
2 is gradually inserted into the auxiliary unit 11
Moves to the ottoman body 10 side.

Thereafter, when the nut 23 reaches the storage position shown in FIG. 4, this is detected by a position detection sensor (not shown), the electric power supply to the electric motor 18 is stopped, the rotation is stopped, and the gear is correspondingly stopped. When the rotation of the output rotary shaft 20 of the unit 19 is stopped, the rotation of the double screw shaft 22 is also stopped, the backward movement of the nut 23 is stopped, and the ottoman 4 is stopped while the auxiliary unit 11 is in contact with the ottoman body 10. The seat cushion 2 is stopped at the storage position stored in the storage recess 2a.

As described above, according to the above-described embodiment, the double screw shaft 22 is rotated to move the nut 23 forward and backward, whereby the ottoman main body 10 can be deployed forward and the auxiliary unit 11 can be slid forward. Both of them can be performed, and the rotation and the width expansion of the ottoman 4 can be simultaneously performed with a simple link mechanism.

Moreover, by storing the ottoman 4 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 seated person from becoming narrow.

Further, since the ottoman body 10 is supported by the first link mechanism 9 having the pair of rotation links 9A and 9B, it is pushed forward when the ottoman body 10 is unfolded forward from the storage position. However, since the inclination angle is gradually decreased, the amount of protrusion to the front can be increased as compared with the case where the ottoman main body 10 is rotatably supported at one point.

Further, covers 15A and 15B are attached to the rotary links 9A and 9B, respectively, so that when the ottoman body 10 is deployed to the front footrest position,
By completely covering the space formed between the rotation links 9A and 9B, it is possible to reliably prevent the insertion of a hand or a finger.

Then, the covers 15A and 15B are mounted on the rotation links 9A and 9B while rotating while bending the short plate portion 15c and the engagement claw 15g between the engagement protrusion 15e and the short plate portion 15c. This can be easily done by inserting the links 9A and 9B, and the covers 15A and 15
The distance between the flat plate portion 15a of B and the rotary links 9A and 9B can be easily adjusted by adjusting the height of the distance adjusting rib 15f, and the interference between the covers 15A and 15B can be avoided.

When the covers 15A and 15B are removed for the purpose of servicing the ottoman 4, a driver or the like is inserted through the release window 15h to disengage the engaging claws 15g from the end faces of the rotary links 9A and 9B. Flat plate part 1
By bending 5a outward from the rotation links 9A and 9B, the engagement state between the engagement protrusion 15e and the engagement hole 9a is released, and the covers 15A and 15B are removed from the rotation links 9A and 9B. You can

In the above embodiment, the case where the covers 15A and 15B are detachably attached to the rotary links 9A and 9B has been described, but the present invention is not limited to this, and the covers 15A and 15B are mutually attached. You may make it adhere | attach or weld so that a predetermined space | interval may be maintained so that it may not interfere.

Further, in the above-mentioned embodiment, the case where the rotary links 9A and 9B are formed in a dogleg shape has been described, but the present invention is not limited to this, and any parallel links may be formed. Can be formed in the shape of.

Further, in the above embodiment, the case where the footrest cushion 14C is formed in the auxiliary unit 11 has been described, but the present invention is not limited to this, and both the ottoman main body 10 and the auxiliary unit 11 are provided. You may make it equip with the footrest cushion 14C.

Furthermore, although the case where the double screw shaft 22 is applied as the linear movement mechanism has been described in the above embodiment, 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 use a ball screw instead of the screw shaft.

[0059]

As described above, according to the electric ottoman device of the first aspect, the sliding body is slidably provided on the ottoman body, and the sliding body contracts toward the ottoman body side at the storage position. As a result, the seat cushion can be securely stored in the storage recess provided on the front end side, and it is possible to secure a wide space for the seated person's feet. From this state, the link member deploys the ottoman body to the footrest position. As a result, the sliding body projects forward from the Ottoman body, but the front space can be expanded by the amount of the storage recess, and a wide footrest width can be ensured, and the first link mechanism is configured. A space is created between the pair of front and rear links when a cover is provided on each of the pair of front and rear links and the ottoman body is expanded to the footrest position by these covers. The cover, the insertion of the hand or fingers into the space portion can be reliably prevented, in which it is possible to improve safety.

Further, according to the electric ottoman device of the second aspect, the covers provided on the pair of front and rear links are arranged so as to be displaced in the left-right direction when viewed from the plane, so that the ottoman body is moved from the footrest position. When returned to the storage position, both covers will overlap and there will be no obstacle when returning the ottoman body, and since there is an overlap part when unfolding, it is possible to reliably prevent insertion of hands and fingers. Is something that can be done.

Further, according to the electric ottoman apparatus of the third aspect, by attaching the hook-shaped attachment portion to the link,
The flat plate is arranged in parallel with the link member, and the flat plate is not flush with the pair of covers by adjusting the distance between the flat plate and the hook-shaped mounting part so that they do not interfere with each other. It can be prevented.

Further, according to the electric ottoman device of the fourth aspect, the space adjusting rib is brought into contact with the link on the flat plate portion, and the engaging projection is engaged with the engaging hole formed in the link. By this, interference between the covers can be avoided and the covers can be easily mounted.

[Brief description of drawings]

FIG. 1 is a perspective view showing 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 a perspective view showing the frame configuration of FIG.

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

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

6 is a cross-sectional view taken along the line S1-S1 in FIG.

FIG. 7 is a perspective view showing a cover in the electric Ottoman device according to the present invention.

8 is a cross-sectional view taken along the line S2-S2 in FIG.

9 is a sectional view taken along the line S3-S3 in FIG.

10 is a cross-sectional view taken along the line S4-S4 in FIG.

FIG. 11 is an exploded perspective view showing a part of a footrest cushion.

FIG. 12 is an enlarged cross-sectional view showing an engaging portion of a footrest cushion.

[Explanation of symbols]

1 sheet 2 seat cushion 3 seat back 4 Ottoman 8 Support arm 9 First link mechanism 9A rotating link 9B Rotation link 10 ottoman body 11 Auxiliary unit (sliding body) 12 Support frame 14 Sliding frame 15A cover 15B cover 15a Flat plate part 15d Hook-shaped mounting plate 15e Engagement protrusion 15f Space adjustment rib 17 Linear movement mechanism 18 electric motor 19 gear unit 22 Double screw shaft 23 nuts 25 Second Link Mechanism 26 Main link

Continuation of the front page (56) References JP-A-64-43210 (JP, A) JP-A-9-206158 (JP, A) Actually open 6-21443 (JP, U) Actually open 6-188 (JP , U) Actual development 57-189940 (JP, U) Actual development 58-192136 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) A47C 7/50 B60N 3/06

Claims (4)

(57) [Claims] 1. An electric ottoman device in which an ottoman is rotatably 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, wherein the ottoman is the seat cushion. Of the Ottoman main body that is expanded from the storage position stored in the storage recess formed in the front part of the Ottoman main body to the footrest position, and the sliding body that is arranged to advance and retract with respect to the Ottoman main body. A linear movement mechanism having a moving element that moves in the vehicle front-rear direction, a first link mechanism that expands the Ottoman body from a storage position to a footrest position, and a Ottoman body that is connected to the moving element of the linear movement mechanism. A second phosphorus that extends from the storage position to the footrest position side and projects the sliding body forward from the ottoman body. The first link mechanism is pivotally supported at a pair of left and right support brackets fixed to the seat cushion side so as to be rotatable at predetermined intervals, and the other end is predetermined to the ottoman body. A pair of front and rear links rotatably pivotally supported at intervals, and a pair of covers attached to the pair of front and rear links to cover a space between the links when the Ottoman body is unfolded. A characteristic electric ottoman device. 2. The pair of front and rear covers are arranged so as to be displaced from each other by a predetermined gap in the left-right direction when viewed from a plane, and when the Ottoman body is unfolded, an overlap portion is formed when viewed in the horizontal direction. The electric ottoman device according to claim 1. 3. The pair of covers includes a flat plate portion that covers the space located outside the pair of front and rear links, and a pair of front and rear links formed on the pair of front and rear links of the flat plate portion. The electric ottoman device according to claim 1 or 2, further comprising: a hook-shaped mounting portion mounted inside. 4. The flat plate portion is provided with a gap adjusting rib and an engaging protrusion engaging with an engaging hole formed in a pair of front and rear links at a position facing the hook-shaped attaching portion. The electric ottoman device according to claim 3, which is characterized in that.