JP2001000274A - Ottoman device for seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a leg placing length by means of an ottoman longer than the length of the height position of a seat taking part, to facilitate housing and to quickly develop a rotary body on the tip side of an ottoman main body when using the ottoman. SOLUTION: A lower bracket 14 is project-formed at a seatback 3 and a front bracket 16 is formed at a seat cushion 2. A driving mechanism 21 is provided between the bracket 14 and the bracket 16. A first link mechanism 31 and a second link mechanism 41 for rapidly rotating a rotary body 12 from the main body 11 to a front side are arranged. The mechanism 31 is formed of a rod 34 and a first link 38, which is pivotally supported by the bracket 16. The mechanism 41 is formed of a second link 42 pivotally supported with one end of the link 38 and a third link 43. The intermediate part of the link 42 is pivotally supported by a bracket 45 project-formed lower than the main body 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ottoman device for a seat, and more particularly to a ottoman device for a seat. The present invention relates to an ottoman device for a sheet in which the ottoman is developed between a footrest position and a storage position by a drive mechanism.

[0002]

2. Description of the Related Art As a conventional sheet 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 above-described 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 a disadvantage that the operation is monotonous even though the configuration is complicated. Was.

[0004] In addition, particularly when mounted on a vehicle, the height of the seating portion is relatively low, and the footrest must be accommodated within this height. There is also an unresolved issue that cannot be done.

An object of the present invention is to pay attention to the unsolved problem of the conventional example, and it is possible to make a footrest length by an ottoman longer than a height position of a seating portion. Another object of the present invention is to provide an ottoman device for a seat that can be easily stored and can be rapidly deployed at the time of use.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an ottoman device for a seat according to claim 1 is provided with a seat back at a rear portion of a seat cushion so as to be capable of tilting back and forth. In a seat ottoman device in which an ottoman is expandably connected to a front portion of a cushion and the ottoman is deployed between a footrest position and a storage position by a driving mechanism, the ottoman pivots to the front portion of the seat cushion. An ottoman main body that is deployed from the stored storage position to the foot rest position, and a rotating body that is rotatably disposed at the tip of the ottoman main body, and the seat back has a lower bracket below the lower end from the lower end. A front bracket is formed at a lower portion of the seat cushion, and the lower bracket and the front bracket are A drive mechanism having a mover 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 in accordance with a backward tilt of the seat back by the drive mechanism; The second to make the rotating body pivotally project forward from the ottoman body
And a link mechanism.

In the seat ottoman device according to the first aspect, the first link mechanism for expanding the ottoman main body from the storage position to the foot rest position in accordance with the backward tilt of the seat back by the driving mechanism, and the rotating body. And a second link mechanism for rotating and projecting the rotator forward from the ottoman main body, so that the rotator can be held rearward below the seat cushion in the storage position of the ottoman main body, and the foot of the ottoman can be held. The mounting length can be longer than the length of the height position of the seat.

According to a second aspect of the present invention, in the ottoman device for a seat according to the first aspect, the first link mechanism comprises: a rod having one end pivotally supported by a lower bracket of a seat back; Has a first link pivotally supported at one end thereof, the other end of the first link pivotally supported by a front bracket of the seat cushion, and wherein the second link mechanism is the first link mechanism. And a second link pivotally supported together with one end of the first link, and an intermediate portion of the second link is pivotally supported by a bracket projecting downward from the ottoman body.

In the ottoman device for a seat according to the second aspect, the rotating body can be held rearward below the seat cushion at the storage position of the ottoman body, and the ottoman is tilted in accordance with the backward inclination of the seat back. Since the main body can be unfolded from the storage position to the foot rest position and the rotating body can be pivotally protruded forward from the ottoman body, the length of the foot rest by the ottoman is longer than the length of the height position of the seating portion. Can be.

[0010] Furthermore, the ottoman device for a seat according to the third aspect is the invention according to the first or second aspect,
The second link mechanism is a first link mechanism of the first link mechanism.
A second link pivotally supported with one end of the link, and a third link one end pivotally supported by the other end of the second link;
The other end of the third link is pivotally supported by a tip of an L-shaped fixed bracket provided on the rotating body.

In the ottoman device for a seat according to the third aspect, the second link mechanism includes a second link pivotally supported together with one end of the first link, and one end pivotally supported by the other end of the second link. And the other end of the third link is pivotally supported by the tip of an L-shaped fixed bracket provided on the rotating body. The ottoman main body can be extended from the storage position to the foot rest position in accordance with the backward inclination of the seat back, and the rotating body can be pivotally protruded forward from the ottoman main body in accordance with the backward inclination of the seat back. Therefore, the length of the foot rest by the ottoman can be made longer than the length of the height position of the seating portion.

According to a fourth aspect of the present invention, in the seat ottoman device according to the third aspect, the first link of the first link mechanism and the third link of the second link mechanism are substantially straight. From a predetermined rotation angle of the ottoman body that is on a line, as the ottoman body approaches the footrest position, the rotating body is rapidly deployed, and the ottoman body and the rotating body are located at the footrest position of the ottoman body. It is characterized by being substantially on a straight line.

In the seat ottoman device according to the fourth aspect, the rotating body is rapidly deployed as the ottoman body approaches the footrest position from a predetermined rotating angle of the ottoman body. In the storage position, the rotating body can be held toward the rear below the seat cushion, and the ottoman body is deployed from the storage position to the foot rest position in accordance with the backward inclination of the seat back, and the rotating body is moved to the ottoman body. From the front, the footrest length of the ottoman can be longer than the height position of the seating portion, so that storage is easy and the rotating body can be rapidly deployed when used. .

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic side view showing an embodiment of the present invention, and FIGS. 2 to 6 are side views showing each step of expanding the ottoman main body from a storage position to a footrest position in accordance with the backward inclination of the seat back. . In the present embodiment, a case will be described in which the present invention is applied to a vehicle seat, but the present invention is not limited to this.

As shown in FIG. 1, a vehicle seat 1 has a seat cushion 2 and a seat back 3 which can be tilted back and forth by, for example, a reclining mechanism at a rear end thereof, and a front end of the seat cushion 2 or a center side of the front end. And a ottoman 4 that is arranged to be deployable by a drive mechanism between a storage position stored in the stored storage recess or the like and a foot mounting position shown by a dashed line. The seat back 3 is rotatably mounted by a pivot pin 3a.

Here, the seat cushion 2 is supported by a pair of front and rear legs 6a, 6b provided on a floor F of a vehicle body with a cushion frame 5 disposed therein.
The legs 6a and 6b may be mounted on a seat slide device extending in the front-rear direction to support the front-rear position so as to be adjustable.

The ottoman 4 includes an ottoman main body 11 which is expanded from a storage position in which it is pivotally stored in the front portion of the seat cushion 2 to a footrest position, and the ottoman main body 1.
And a rotating body 12 rotatably disposed at the distal end of the rotating body 1. The ottoman body 11 is attached to a bracket 5a provided at the front end of the cushion frame 5 by a pivot pin 5b.
Is rotatably supported. A curving bracket 12a is provided on the base end side of the rotating body 12, and the curving bracket 11a of the ottoman body 11 and the curving bracket 12a of the rotating body 12 are pivotally supported by a pivot pin 13. ing.

A lower bracket 14 protrudes downward from the lower end of the back frame 7 on the back frame 7 of the seat back 3, and an inverted L-shaped protruding downward protrudes below the cushion frame 5 of the seat cushion 2. Is formed. A drive mechanism 21 having a mover 23 that is moved by an electric motor 22 in the vehicle front-rear direction is provided between the lower bracket 14 and the front bracket 16. The drive mechanism 21 has, for example, a gear unit for reducing the rotational driving force of the electric motor 22 and a double screw shaft, and is formed by screwing a nut as the mover 23 to the double screw shaft. The drive mechanism 21 is not limited to the illustrated one, but may be of a manual type.

One end of the drive mechanism 21 is connected to a pivot pin 21a.
, The other end is pivotally supported to the rear of the front bracket 16 by a pivot pin 21b. A first link mechanism 31 that expands the ottoman body 11 from the storage position to a foot-resting position in accordance with the backward inclination of the seat back 3 by the drive mechanism 21, and the rotating body 12 rotates forward from the ottoman body 11 And a second link mechanism 41 for projecting.

The first link mechanism 31 includes a rod 34 whose one end 34a is pivotally supported by the lower bracket 14 of the back frame 7 by a pivot pin 35, and the other end 34 of the rod 34.
b has a first link 38 whose one end 38a is pivotally supported by a pivot pin 36, and the other end 38b of the first link 38 is connected to a front portion of the front bracket 16 of the cushion frame 5 by a pivot pin 39. It is pivoted. The first link 3
8 rotates around the pivot pin 39.

One end 42a of the second link mechanism 41 is connected to one end 38 of the first link 38 of the first link mechanism 31.
The second link 42 pivotally supported by the pivot pin 36 together with the
The second link 42 is formed in a U-shape, and an intermediate portion of the U-shaped second link 42 is attached to a bracket 45 protruding below the ottoman body 11 by a pivot pin 47. , And the second link 42 rotates about the pivot pin 47.

One end of a third link 43 is pivotally supported by a pivot pin 44 at the other end 42b of the second link 42,
The other end of the third link 43 is connected to the L
It is pivotally supported by a pivot pin 51 at the tip of a fixed bracket 49 in the shape of a letter.

As shown in FIG. 2, from the state where the ottoman 4 is in the storage position in which the ottoman 4 is rotatably stored in the front portion of the seat cushion 2, as shown in FIG. The state of being deployed at the foot rest position will be described. First, when the drive motor 22 of the drive mechanism 21 is rotated forward in the state where the ottoman 4 shown in FIG. 2 is in the storage position, the moving member 23 moving in the vehicle front-rear direction moves the lower bracket 14 in the direction of arrow A, As a result, the backward tilt of the back frame 7 is started.

When the back frame 7 is tilted rearward, the first
The rod 34 of the link mechanism 31 is pressed forward in the same direction, and the first link 38 is rotated clockwise about the pivot pin 39. In the state shown in FIGS. 3 and 4, the ottoman body 11 rotates clockwise about the pivot pin 5 b in accordance with the rotation of the first link 38 in response to the backward inclination of the back frame 7.

In the state shown in FIGS. 3 and 4, the rotating body 12 holds a state where it is not substantially rotated with respect to the ottoman body 11. In other words, the ottoman body 1
The rotating body 12 is rotated while maintaining a substantially L-shape with respect to 1, and the rotating body 12 does not come into contact with the floor F of a vehicle or the like. The rotating body 12 holds the substantially L-shape with respect to the ottoman body 11 until the ottoman body 11 has rotated substantially halfway with respect to the vertical line, and in the present embodiment, has rotated about 43 °. I have.

Next, when the rod 34 is further pushed forward, the second link 42 of the second link mechanism 41
While being pushed forward according to the rotation of the link 38,
The second link 42 rotates counterclockwise about the pivot pin 47. The third link 43 rotates clockwise about a pivot pin 51 at the tip of an L-shaped fixing bracket 49 provided on the rotating body 12.

A predetermined rotation angle of the ottoman main body 11 in which the first link 38 of the first link mechanism 31 and the third link 43 of the second link mechanism 41 are substantially aligned with each other. In the form of, from the point of turning about 43 °,
As the ottoman body 11 approaches the foot rest position where the ottoman body 11 is kept substantially horizontal, the rotating body 12 is rapidly deployed as shown in FIGS.

The second link 42 of the second link mechanism 41
Is rotated counterclockwise about the pivot pin 47, the third link 43 is relatively pulled downward by the other end 42b of the second link 42, and the L-shaped The pivot pin 51 at the tip of the fixed bracket 49 is pulled relatively downward, and the rotating body 12 rapidly rotates clockwise about the pivot pin 13, whereby the rotating body 12 is rapidly deployed.

The ottoman main body 11 and the rotating body 12 are substantially in a straight line at the foot rest position of the ottoman main body 11. The rotation of the second link 42 stops in a state where the substantially horizontal state is maintained. Ottoman body 11 and rotating body 1
The length L at the foot rest position in the horizontal state with respect to 2 can be about 1.5 times the length l of the housed state at the housed position of the ottoman body 11. On the other hand, to move the ottoman body 11 from the foot rest position to the storage position, the drive mechanism 2
One drive motor 22 may be reversed.

[0030]

As described above, according to the seat ottoman device of the first aspect, the first ottoman body is expanded from the storage position to the foot rest position in accordance with the backward tilt of the seat back by the drive mechanism. A second link mechanism for rotatingly projecting the rotating body forward from the ottoman body.
Since the link mechanism is arranged, the rotating body can be held toward the rear below the seat cushion in the storage position of the ottoman body, and the footrest length of the ottoman is smaller than the height position of the seating portion. Can be longer.

Further, in the ottoman device for a seat according to the second aspect, the rotating body can be held rearward below the seat cushion at the storage position of the ottoman main body, and the rotating body can be held in accordance with the backward inclination of the seat back. Since the ottoman body can be unfolded from the storage position to the foot rest position and the rotating body can be pivotally protruded forward from the ottoman body, the length of the ottoman foot rest is made longer than the height of the seating portion. be able to.

Further, in the seat ottoman device according to the third aspect, the second link mechanism includes a second link pivotally supported together with one end of the first link, and one end pivotally connected to the other end of the second link. And the other end of the third link is pivotally supported by the tip of an L-shaped fixed bracket provided on the rotating body. The ottoman body can be held from the storage position to the footrest position in accordance with the backward inclination of the seat back, and the rotator can be pivotally protruded forward from the ottoman body in accordance with the backward inclination of the seat back. Therefore, the footrest length of the ottoman can be made longer than the length of the height position of the seating portion.

In the seat ottoman device according to the fourth aspect, the rotating body is rapidly deployed as the ottoman body approaches the footrest position from a predetermined rotation angle of the ottoman body. In the storage position, the rotating body can be held toward the rear below the seat cushion, and the ottoman body is deployed from the storage position to the foot rest position in accordance with the backward inclination of the seat back, and the rotating body is moved to the ottoman body. From the front, the footrest length of the ottoman can be longer than the height position of the seating portion, so that storage is easy and the rotating body can be rapidly deployed when used. .

According to the present invention, the length of the foot rest by the ottoman can be made longer than the height of the seating portion, and furthermore, the ottoman device for the seat can be easily stored and can be rapidly expanded at the time of use. Can be obtained.

[Brief description of the drawings]

FIG. 1 is a side view showing a schematic configuration of a seat ottoman device according to the present invention.

FIG. 2 is a side view showing a schematic configuration of the seat ottoman device according to the present invention in a state where the ottoman is in a storage position.

FIG. 3 is a side view showing a schematic configuration of the seat ottoman device according to the present invention in a state where a seat back is tilted backward.

FIG. 4 is a side view showing a schematic configuration of the ottoman device for a seat according to the present invention in a state where the seat back is further inclined backward.

FIG. 5 is a side view showing a schematic configuration of a rotating body of the ottoman device for a seat according to the present invention in a rotating state.

FIG. 6 is a side view showing a schematic configuration of the ottoman device of the seat according to the present invention in a deployed state of the ottoman.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vehicle seat 2 Seat cushion 3 Seat back 3a Pivot pin 4 Ottoman 5 Cushion frame 5a Bracket 5b Pivot pin 6a Leg 6b Leg 7 Back frame 11 Ottoman body 11a Bracket 12 Rotating body 12a Bracket 13 Pivot pin 14 Lower part Bracket 16 Front bracket 21 Drive mechanism 21a Pivot pin 21b Pivot pin 22 Electric motor 23 Moving element 31 First link mechanism 34 Rod 34a One end 34b Other end 35 Pivot pin 36 Pivot pin 38 First link 38a One end 38b Other end 39 Pivot pin 41 Second link mechanism 42 Second link 42a One end 42b Other end 43 Third link 44 Pivot pin 45 Bracket 47 Pivot pin 49 Fixed bracket 51 Pivot pin

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[Procedure amendment]

[Submission date] July 2, 1999 (1999.7.2)

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Fig. 4

[Correction method] Change

[Correction contents]

FIG. 4

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Toru Sato 2208 Ono, Hamakita City, Shizuoka Prefecture Inside Sampros Co., Ltd. (72) Inventor Yasuhiro Okamura 2208 Ono, Hamakita City, Shizuoka Prefecture Sampros Co., Ltd. (72 ) Inventor Mitsui Terui 2208 Ono, Hamakita City, Shizuoka Prefecture Inside Sampros Co., Ltd. (72) Inventor Masami Sugimoto 550-1 Yawata Yatsuhata, Hirota, Fujieda-shi, Shizuoka Prefecture F-term (reference) 3B088 JA02 JB02 3B099 AA03 BA11 CA36 CB01 CB06 DA10

Claims (4)

[Claims] 1. A seat back is provided at a rear portion of a seat cushion so as to be able to tilt forward and backward, an ottoman is connected to a front portion of the seat cushion so as to be deployable, and the ottoman is deployed between a footrest position and a storage position by a drive mechanism. In the ottoman device for a seat according to the above, the ottoman is provided at an end of the ottoman main body, which is deployed from a storage position rotatably stored at a front portion of the seat cushion to a footrest position, and is rotatably disposed at a tip end of the ottoman main body. A lower bracket projecting downward from a lower end of the seat back, a front bracket is formed below the seat cushion, and a vehicle is provided between the lower bracket and the front bracket. A drive mechanism having a moving element that moves in the front-rear direction is provided, and the drive mechanism responds to a backward tilt of the seat back by the drive mechanism. A seat, comprising: a first link mechanism for expanding the ottoman body from the storage position to a footrest position; and a second link mechanism for rotating and projecting the rotating body forward from the ottoman body. Ottoman device. 2. The first link mechanism includes a rod having one end pivotally supported by a lower bracket of a seat back, and a first link having one end pivotally supported by the other end of the rod.
The other end of the link is pivotally supported by a front bracket of the seat cushion, and the second link mechanism has a second link pivotally supported with one end of a first link of the first link mechanism. 2. The ottoman device for a seat according to claim 1, wherein an intermediate portion of the two links is pivotally supported by a bracket formed so as to protrude downward from the ottoman body. 3. The second link mechanism includes a second link pivotally supported together with one end of the first link of the first link mechanism, and a third link pivotally supported at one end by the other end of the second link. 3. The seat according to claim 1, further comprising a link, wherein the other end of the third link is pivotally supported by a tip of an L-shaped fixed bracket provided on the rotating body. 4. Ottoman device. 4. The ottoman main body is moved from a predetermined rotation angle of the ottoman main body where a first link of the first link mechanism and a third link of the second link mechanism are substantially on a straight line. The seat according to claim 3, wherein the rotating body is rapidly deployed as the position approaches the mounting position, and the ottoman body and the rotating body are substantially aligned with each other at the foot mounting position of the ottoman body. Ottoman device.