JP7713866B2 - Vehicle seat - Google Patents

Description

The present invention relates to a vehicle seat.

The following Patent Document 1 discloses a vehicle seat structure equipped with an ottoman. The vehicle seat structure described in this document is provided with a slide plate that regulates the position of the ottoman so that when the seat cushion moves downward, the tip of the ottoman in the stored position is higher relative to the seat cushion. This makes it possible to prevent the tip of the ottoman from hitting the floor when the seat cushion is lowered.

JP 2010-137717 A

The configuration described in Patent Document 1 is useful in terms of preventing the ottoman from hitting the floor or the like due to the displacement of the seat cushion, but it requires the installation of a sliding plate on the floor, which complicates the structure around the ottoman.

In consideration of the above, an object of the present invention is to provide a vehicle seat that can displace an ottoman relative to the seat cushion when the seat cushion is displaced, while suppressing the complexity of the structure.

A first aspect of the vehicle seat includes a seat cushion that is displaceable in the up-down direction of the seat and supports the buttocks of a seated occupant from the underside of the seat, an ottoman that is supported by the seat cushion and is displaceable relative to the seat cushion and supports the legs of the seated occupant from the underside of the seat, a first member that is displaceable together with the seat cushion, and a second member that is abutted against and pressed by the first member from the upper side of the seat when the seat cushion is displaced toward the front lower side of the seat, thereby displacing the ottoman around an axis in the width direction of the seat .

According to the vehicle seat of the first aspect, when the seat cushion is displaced toward the front lower side of the seat , the first member is displaced together with the seat cushion, and the second member is abutted against the first member from the upper side of the seat and pressed against it. When the second member is pressed against the first member, the second member is displaced around an axis in the seat width direction , and the ottoman is displaced. In this way, the ottoman can be displaced relative to the seat cushion when the seat cushion is displaced. Furthermore, in the vehicle seat of the first aspect, a simple configuration is provided in which a first member that displaces together with the seat cushion and a second member that is pressed against the first member are provided, and the ottoman can be displaced relative to the seat cushion when the seat cushion is displaced.

The second aspect of the vehicle seat is the vehicle seat of the first aspect, in which the seat cushion is displaceable between a seating position where an occupant can sit and a storage position below the seating position, the second member is provided so as to be displaceable together with the ottoman, and the first member includes a connection portion that connects the floor side of the vehicle to a seat cushion frame that forms the framework of the seat cushion, and a pressing portion that is provided integrally with the connection portion and presses the second member.

According to the vehicle seat of the second aspect, when the seat cushion is displaced, the first member is displaced together with the seat cushion, and the second member is pressed by the pressing portion of the first member. When the second member is displaced by pressing the second member against the pressing portion of the first member, the ottoman is displaced together with the second member. In this way, the ottoman can be displaced relative to the seat cushion when the seat cushion is displaced. Furthermore, with the vehicle seat of the second aspect, the simple configuration of providing a first member that displaces together with the seat cushion and a second member that displaces together with the ottoman allows the ottoman to be displaced relative to the seat cushion when the seat cushion is displaced.

The vehicle seat of the third aspect is the vehicle seat of the second aspect, in which, when the seat cushion is in the seating position, the pressing portion protrudes toward the front side of the seat relative to the connection portion in a side view of the seat, and when the seat cushion is in the storage position, the pressing portion protrudes toward the lower side of the seat relative to the connection portion in a side view of the seat.

According to the vehicle seat of the third aspect, when the seat cushion is in the seating position, the pressing portion of the first member protrudes toward the front of the seat relative to the connection portion in a side view of the seat. This makes it possible to prevent the pressing portion of the first member from protruding toward the buttocks (upward) of the seated occupant when the seat cushion is in the seating position. In addition, in the vehicle seat of the second aspect, when the seat cushion is in the storage position, the pressing portion of the first member protrudes toward the lower side of the seat relative to the connection portion in a side view of the seat. This makes it possible to flatten the upper surface of the seat cushion compared to a configuration in which the pressing portion of the first member protrudes toward the upper side of the seat relative to the connection portion when the seat cushion is in the storage position.

The fourth aspect of the vehicle seat is the vehicle seat of the third aspect, wherein the second member includes an ottoman fixing portion fixed to the ottoman and a pressed portion extending from the ottoman fixing portion and pressed against the pressing portion, and when the seat cushion is in the seating position and the ottoman is in the storage position, the pressed portion protrudes toward the rear of the seat relative to the ottoman fixing portion in a side view of the seat, and when the seat cushion is in the storage position, the pressed portion protrudes toward the lower side of the seat relative to the ottoman fixing portion in a side view of the seat.

According to the fourth aspect of the vehicle seat, when the seat cushion is in the seating position, the pressed portion of the second member protrudes toward the rear of the seat relative to the ottoman fixing portion in a side view of the seat. This prevents the pressed portion of the second member from protruding toward the legs (forward) of the seated occupant when the seat cushion is in the seating position. In addition, in the fourth aspect of the vehicle seat, when the seat cushion is in the storage position, the pressed portion of the second member protrudes toward the lower side of the seat relative to the ottoman fixing portion in a side view of the seat. This allows the upper surface of the ottoman to be flattened compared to a configuration in which the pressed portion of the second member protrudes toward the upper side of the seat relative to the ottoman fixing portion when the seat cushion is in the storage position.

The vehicle seat of the fifth aspect is the vehicle seat of the fourth aspect, in which, when the seat cushion is in the seating position, the pressing portion and the pressed portion are arranged to be aligned in the up-down direction of the seat in a side view of the seat, and when the seat cushion is in the storage position, the pressing portion and the pressed portion are arranged to be aligned in the front-rear direction of the seat in a side view of the seat.

According to the vehicle seat of the fifth aspect, when the seat cushion is in the seating position, the pressing portion of the first member and the pressed portion of the second member are arranged to be aligned in the up-down direction of the seat in a side view of the seat. This makes it possible to prevent the peripheral portions of the pressing portion of the first member and the pressed portion of the second member from increasing in size in the front-rear direction when the seat cushion is in the seating position. In addition, in the vehicle seat of the fifth aspect, when the seat cushion is in the storage position, the pressing portion of the first member and the pressed portion of the second member are arranged to be aligned in the front-rear direction of the seat in a side view of the seat. This makes it possible to prevent the peripheral portions of the pressing portion of the first member and the pressed portion of the second member from increasing in size in the up-down direction when the seat cushion is in the storage position.

The vehicle seat of the sixth aspect is the vehicle seat of the first aspect, in which the second member is provided between the ottoman and the first member, and when the seat cushion is displaced, the first member presses a part of the second member to displace the second member, and another part of the displaced second member presses the ottoman or a member that displaces together with the ottoman to displace the ottoman.

According to the vehicle seat of the sixth aspect, when the seat cushion is displaced, the first member is displaced together with the seat cushion, and a part of the second member is pressed by the first member. When a part of the second member is pressed by the first member, the second member is displaced, and another part of the second member presses the ottoman or a member that displaces together with the ottoman. This displaces the ottoman. In this way, the ottoman can be displaced relative to the seat cushion when the seat cushion is displaced. Furthermore, in the vehicle seat of the sixth aspect, a simple configuration is provided in which a first member that displaces together with the seat cushion is provided, and a second member that is pressed by the first member is provided, and the ottoman can be displaced relative to the seat cushion when the seat cushion is displaced.

The vehicle seat according to the present invention has an excellent effect of being able to displace the ottoman relative to the seat cushion when the seat cushion is displaced, while preventing the structure from becoming complicated.

1 is a side view of a vehicle seat according to a first embodiment, seen from the left side of the seat, showing a state in which a seat cushion is located in a seating position. 1 is a side view of a vehicle seat according to a first embodiment, seen from the left side of the seat, illustrating a state in which a seat cushion is located in an intermediate position when being moved from a seating position to a storage position. 1 is a side view of a vehicle seat according to a first embodiment, seen from the left side of the seat, showing a state in which a seat cushion is located in a storage position. FIG. 11 is an enlarged side view of the vehicle seat of the second embodiment, seen from the left side of the seat, showing a state in which the seat cushion is located in a seating position.

The vehicle seat 10 of the first embodiment will be described using Figures 1 to 3.

Figure 1 shows a side view of a vehicle seat 10 of the first embodiment as seen from the left side of the seat. In the figure, the arrow FR indicates the front side of the seat, and the arrow UP indicates the upper side of the seat. In the following description, unless otherwise specified, when the directions front-rear, up-down, and left-right are used, they refer to front-rear in the front-rear direction of the seat, up-down in the up-down direction of the seat, and left-right in the width direction of the seat.

As shown in FIG. 1, the vehicle seat 10 of this embodiment includes a seat cushion 12 that supports the buttocks of a seated occupant from below, a seat back 14 that supports the back of the seated occupant from the rear side of the seat, and an ottoman 16 that supports the legs of the seated occupant from the lower side of the seat. Here, as shown in FIG. 1 to FIG. 3, the vehicle seat 10 of this embodiment is capable of stacking the seat back 14 and the seat cushion 12 in the vertical direction by tilting the seat back 14 forward, and is provided with a mechanism that displaces the seat cushion 12 and the seat back 14 downward when the seat back 14 is tilted forward. This mechanism is called a tilt-down mechanism. The vehicle seat 10 of this embodiment also includes an ottoman lifting mechanism 20 that prevents the lower end of the ottoman 16 from contacting the vehicle floor 18 when the seat back 14 is tilted forward.

As shown in FIG. 1, the seat cushion 12 includes a seat cushion frame 22 that forms the framework of the seat cushion 12. A seat cushion pad covered with a skin material is attached to the seat cushion frame 22. Note that the seat cushion pad is not shown in FIGS. 1 to 3 to make it easier to see the components that make up the ottoman lifting mechanism 20, which will be described later.

The seat cushion frame 22 is provided with a pair of left and right side frames 24 that are spaced apart in the left-right direction and extend in the front-rear direction. The seat back 14 is supported at the rear ends of the pair of left and right side frames 24 so that it can tilt (rotate) in the front-rear direction. An ottoman support member 26 is fixed to the front ends of the pair of left and right side frames 24. One end 16A of the ottoman 16 is supported by this ottoman support member 26 so that it can tilt (rotate) in the up-down direction.

The front ends of the pair of left and right side frames 24 and the pair of left and right base members 28 fixed to the floor of the vehicle body are connected via a pair of left and right front links 30. Here, the front ends of the pair of left and right side frames 24 and the pair of left and right front links 30 are joined so as to be relatively rotatable with the left and right direction as the rotation axis direction. In addition, the front ends of the pair of left and right base members 28 and the pair of left and right front links 30 are joined so as to be relatively rotatable with the left and right direction as the rotation axis direction. This makes it possible to move the seat cushion 12 between the seating position A1 shown in FIG. 1 and the storage position A2 shown in FIG. 3. In this embodiment, when the seat cushion 12 moves from the seating position A1 to the storage position A2, the seat cushion 12 moves downward and forward.

The seat back 14 is constructed by attaching a seat back pad 32 covered with an upholstery material to a seat back frame that constitutes the framework of the seat back 14. The seat back 14 can be moved between a seating position B1 shown in FIG. 1 and a storage position B2 shown in FIG. 3. In this embodiment, when the seat back 14 moves from the seating position B1 to the storage position B2, the seat back 14 tilts forward and descends.

The ottoman 16 is formed by, for example, attaching a cushion member 36 covered with a skin material to a base member 34 formed in a plate shape. Here, the ottoman 16 shown in FIG. 1 is located in the storage position C. When the seat cushion 12 is located in the seating position A1 and the ottoman 16 is located in the storage position C, the ottoman 16 is prevented from contacting the legs of an occupant seated on the seat cushion 12. When the seat cushion 12 is located in the seating position A1 and the ottoman 16 is located in the storage position C, the other end 16B of the ottoman 16 is arranged close to the floor 18 of the vehicle in the vertical direction. Note that the ottoman 16 is tilted forward and upward from the storage position C to be positioned in a support position where it can support the legs of the seated occupant from the lower side of the seat. The configuration for tilting the ottoman 16 from the storage position C to the support position may be a manual configuration or an electric configuration. Furthermore, the configuration for holding the ottoman 16 in a predetermined position may be any configuration that does not interfere with the operation of the ottoman lifting mechanism 20 described below. As an example, when tilting the ottoman 16 from the storage position C to the support position, the ottoman 16 tilted from the storage position C to any angle including the support position is locked from tilting downward, and when returning the ottoman 16 tilted from the storage position C to any angle including the support position to the downward side (storage position C side), the downward tilt of the ottoman 16 is permitted by operating the retention release part.

The ottoman lifting mechanism 20 includes a seat cushion side link 38 as a first member constituting the front link 30, and an ottoman side link 40 as a second member fixed to the ottoman 16. The seat cushion side link 38 and the ottoman side link 40 may be provided on both the left and right sides, or on either the left or right side. The seat cushion side link 38 and the ottoman side link 40 may also be provided in the middle between the left and right sides. In the following description, the seat cushion side link 38 and the ottoman side link 40 are described as being provided only on the left side.

The seat cushion side link 38 is formed in a generally L-shape when viewed from the left side. This seat cushion side link 38 has a connection part 38A that extends in the vertical direction when the seat cushion 12 is in the seating position A1, and a pressing part 38B that extends so as to protrude forward from the upper end of the connection part 38A. The upper end side of the connection part 38A and the part below the pressing part 38B are joined to the front end part of the left side frame 24 so as to be relatively rotatable with the left-right direction as the rotation axis direction. In addition, the lower end part of the connection part 38A is joined to the front end part of the left base member 28 so as to be relatively rotatable with the left-right direction as the rotation axis direction.

The ottoman-side link 40 is formed in a substantially L-shape when viewed from the left side. The ottoman-side link 40 is fixed to the left side of the ottoman 16 and includes an ottoman fixing portion 40A that extends from one end 16A of the ottoman 16 toward the other end 16B. The ottoman-side link 40 also includes a pressed portion 40B that extends so as to protrude rearward from the upper end of the ottoman fixing portion 40A when the seat cushion 12 is in the seating position A1 and the ottoman 16 is in the storage position C. When the seat cushion 12 is in the seating position A1 and the ottoman 16 is in the storage position C, the pressing portion 38B of the seat cushion-side link 38 and the pressed portion 40B of the ottoman-side link 40 are arranged to be aligned (overlapping) in the seat vertical direction.

(Actions and Effects of the Present Embodiment)
Next, the operation and effects of this embodiment will be described.

As shown in Figures 1, 2, and 3, in the vehicle seat 10 of this embodiment described above, when the seat back 14 is displaced from the seating position B1 to the storage position B2, and the seat cushion 12 is displaced from the seating position A1 to the storage position A2, the seat cushion side link 38 is tilted forward.

As shown in FIG. 2, when the seat cushion side link 38 is tilted forward, the pressed portion 40B of the ottoman side link 40 is pressed from above by the pressing portion 38B of the seat cushion side link 38.

3, when the ottoman-side link 40 is displaced by the pressing portion 38B of the seat cushion-side link 38 pressing the pressed portion 40B of the ottoman-side link 40, the ottoman 16 is displaced together with the ottoman-side link 40. In this manner, in this embodiment, when the seat back 14 and the seat cushion 12 are displaced, the ottoman 16 can be displaced relative to the seat cushion 12. This allows the other end 16B of the ottoman 16 to be separated from the vehicle floor 18. That is, in this embodiment, when the seat back 14 is tilted forward, the lower end (the other end 16B) of the ottoman 16 can be prevented from contacting the vehicle floor 18.

In addition, in this embodiment, a seat cushion side link 38 that displaces together with the seat cushion 12 and an ottoman side link 40 that displaces together with the ottoman 16 are provided, and this simple configuration allows the ottoman 16 to be displaced relative to the seat cushion 12 when the seat cushion 12 is displaced.

Furthermore, in this embodiment, as shown in FIG. 1, when the seat cushion 12 is positioned at the seating position A1, the pressing portion 38B of the seat cushion side link 38 protrudes toward the front of the seat relative to the connection portion 38A. This prevents the pressing portion 38B of the seat cushion side link 38 from protruding toward the buttocks (upward) of the seated occupant when the seat cushion 12 is positioned at the seating position A1.

In addition, in this embodiment, as shown in FIG. 3, when the seat cushion 12 is in the storage position A2, the pressing portion 38B of the seat cushion side link 38 protrudes downward from the connection portion 38A in a side view of the seat. This allows the upper surface of the seat cushion to be flatter than in a configuration in which the pressing portion 38B of the seat cushion side link 38 protrudes upward from the connection portion 38A when the seat cushion 12 is in the storage position A2.

Furthermore, in this embodiment, as shown in FIG. 1, when the seat cushion 12 is placed in the seating position A1, the pressed portion 40B of the ottoman-side link 40 protrudes toward the rear of the seat relative to the ottoman fixing portion 40A. This makes it possible to prevent the pressed portion 40B of the ottoman-side link 40 from protruding toward the legs (forward) of the seated occupant when the seat cushion 12 is placed in the seating position A1.

As shown in FIG. 3, when the seat cushion 12 is in the storage position A2, the pressed portion 40B of the ottoman-side link 40 protrudes downward from the seat relative to the ottoman fixing portion 40A. This allows the upper surface of the ottoman 16 to be flatter than in a configuration in which the pressed portion 40B of the ottoman-side link 40 protrudes upward from the seat relative to the ottoman fixing portion 40A when the seat cushion 12 is in the storage position A2.

Furthermore, in this embodiment, as shown in FIG. 1, when the seat cushion 12 is placed in the seating position A1, the pressing portion 38B of the seat cushion side link 38 and the pressed portion 40B of the ottoman side link 40 are arranged to be aligned in the up-down direction of the seat. This makes it possible to prevent the size of the pressing portion 38B of the seat cushion side link 38 and the pressed portion 40B of the ottoman side link 40 from increasing in size in the front-rear direction around the peripheral portion when the seat cushion 12 is placed in the seating position A1.

In addition, in this embodiment, as shown in FIG. 3, when the seat cushion 12 is arranged in the storage position A2, the pressing portion 38B of the seat cushion side link 38 and the pressed portion 40B of the ottoman side link 40 are arranged to be aligned in the front-to-rear direction of the seat. This makes it possible to prevent the size of the pressing portion 38B of the seat cushion side link 38 and the pressed portion 40B of the ottoman side link 40 from increasing in size in the vertical direction around the peripheral portion when the seat cushion 12 is arranged in the storage position A2.

(Vehicle seat 42 according to the second embodiment)
Next, a vehicle seat 42 of a second embodiment will be described. Note that, in the vehicle seat 42 of the second embodiment, members and parts corresponding to those of the vehicle seat 10 of the first embodiment described above are denoted by the same reference numerals as those corresponding to those of the vehicle seat 10 of the first embodiment, and descriptions thereof may be omitted.

As shown in FIG. 4, the vehicle seat 42 of this embodiment is characterized in that an intermediate link 44 as a second member is provided between the seat cushion side link 38 as a first member and the ottoman 16.

The intermediate link 44 is formed in a generally L-shape when viewed from the left side. As an example, the intermediate link 44 is supported by the ottoman support member 26 so that it can tilt (rotate) with the left-right direction as its axial direction. The portion of the intermediate link 44 that extends from the portion supported by the ottoman support member 26 toward the seat cushion side link 38 is defined as the pressed portion 44A. The portion of the intermediate link 44 that extends from the portion supported by the ottoman support member 26 toward the ottoman side link 40 is defined as the ottoman pressing portion 44B.

In the vehicle seat 42 of the present embodiment described above, when the seat cushion 12 is displaced from the seating position A1 toward the storage position A2, the seat cushion side link 38 is tilted forward.

When the seat cushion side link 38 is tilted forward, the pressed portion 44A of the intermediate link 44 is pressed from above by the pressing portion 38B of the seat cushion side link 38.

When the pressed portion 44A of the intermediate link 44 is pressed by the pressing portion 38B of the seat cushion side link 38, the intermediate link 44 is displaced, and the ottoman pressing portion 44B of the intermediate link 44 presses the ottoman side link 40 from below. This allows the ottoman 16 to be displaced, similar to the vehicle seat 10 of the first embodiment described above.

In addition, in this embodiment, the ottoman lifting mechanism 20 is configured to include an intermediate link 44, which prevents the size of each link (seat cushion side link 38, intermediate link 44, and ottoman side link 40) from becoming too large.

In this embodiment, the ottoman pressing portion 44B of the intermediate link 44 presses the ottoman-side link 40 from below to displace the ottoman 16, but the present invention is not limited to this. For example, the ottoman pressing portion 44B of the intermediate link 44 may directly press the ottoman 16 to displace the ottoman 16.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above, and it is of course possible to implement the invention in various other modified forms without departing from the spirit of the invention.

10 Vehicle seat 12 Seat cushion 16 Ottoman 38 Seat cushion side link (first member)
38A Connection portion 38B Pressing portion 40 Ottoman side link (second member)
40A Ottoman fixing portion 40B Pressed portion 42 Vehicle seat 44 Intermediate link (second member)

Claims (6)

a seat cushion that is displaceable in the up-down direction of the seat and supports the buttocks of a seated occupant from below the seat;
an ottoman supported by the seat cushion and displaceable relative to the seat cushion, supporting legs of a seated occupant from below the seat;
A first member provided so as to be displaceable together with the seat cushion;
a second member that is displaced about an axis in a seat width direction by being abutted against and pressed by the first member from an upper side of the seat when the seat cushion is displaced toward a front lower side of the seat , thereby displacing the ottoman;
A vehicle seat comprising: The seat cushion is displaceable between a seating position where an occupant can be seated and a stored position located below the seat and below the seating position,
The second member is provided so as to be displaceable together with the ottoman,
2. The vehicle seat according to claim 1, wherein the first member includes a connection portion that connects a floor side of the vehicle and a seat cushion frame that constitutes a skeleton of the seat cushion, and a pressing portion that is integral with the connection portion and presses the second member. When the seat cushion is disposed at the seating position, the pressing portion protrudes toward a front side of the seat relative to the connection portion in a side view of the seat,
The vehicle seat according to claim 2 , wherein when the seat cushion is in the stored position, the pressing portion protrudes downward from the seat cushion relative to the connecting portion in a side view of the seat. The second member includes an ottoman fixing portion fixed to the ottoman, and a pressed portion extending from the ottoman fixing portion and pressed by the pressing portion,
When the seat cushion is disposed at the seating position and the ottoman is disposed at the storage position, the pressed portion protrudes toward the rear side of the seat relative to the ottoman fixing portion in a side view of the seat,
The vehicle seat according to claim 3 , wherein when the seat cushion is in the stored position, the pressed portion protrudes downward from the seat with respect to the ottoman fixing portion in a side view of the seat. When the seat cushion is disposed at the seating position, the pressing portion and the pressed portion are arranged to be aligned in the up-down direction of the seat in a side view of the seat,
The vehicle seat according to claim 4, wherein, when the seat cushion is disposed in the storage position, the pressing portion and the pressed portion are arranged to be aligned in a front-rear direction of the seat in a side view of the seat. The second member is provided between the ottoman and the first member,
2. The vehicle seat according to claim 1, wherein when the seat cushion is displaced, the first member presses a portion of the second member, thereby displacing the second member, and another portion of the displaced second member presses the ottoman or a member that displaces together with the ottoman, thereby displacing the ottoman.