JP7243526B2 - footrest - Google Patents

Description

The present invention relates to footrests.

2. Description of the Related Art A footrest is known that can be slid toward or away from a vehicle seat installed on a vehicle floor. For example, the footrest described in Patent Document 1 can operate the slide device to move the footrest to the occupant's foot position when the foot position of the passenger seated on the vehicle seat is different from the foot rest position.

JP 2019-43456 A

In the footrest described in Patent Document 1, the footrest can be slid toward or away from the vehicle seat, but the height and angle of the surface on which the feet are placed cannot be changed. There was a problem that it was difficult to support the foot according to the posture. Also, in the case where the vehicle seat is a so-called rotating seat that can rotate about an axis perpendicular to the floor, when the vehicle seat is rotated with respect to the floor, the position of the footrest deviates from the proper position. There was a problem.

In view of such problems, an object of the present invention is to provide a footrest that can be slidably moved in a direction toward or away from a seat, in which the legs of a seated person can be effectively supported according to the posture of the seated person. To provide a footrest adaptable to a rotating seat.

A first invention of the present invention is a footrest that can be slidably moved in a direction toward or away from a seat rotatable around a first rotation axis perpendicular to the floor, wherein a base portion that can move in parallel; a body portion that is rotatably supported by the base portion about a second rotation axis perpendicular to the floor; one side is supported by a first shaft extending in the width direction of the seat disposed on the opposite side of the seat in the main body portion, and the other side is slidable in the direction in which the first shaft extends. and a plate-like portion disposed on the other side of the slider and capable of putting a foot on the slider.

According to the first invention, it is possible to change the horizontal position and the angle with respect to the floor of the plate-shaped portion on which the soles of the seated person are placed according to the physique and posture of the seat occupant. can be placed in the optimum position for the seated person who has rotated. Specifically, first, the base portion is slid to an appropriate position in the horizontal direction, and the plate-like portion is rotated vertically about the first shaft to provide an appropriate angle for the seated person's footrest. Next, the body portion is rotated about the second rotation axis in accordance with the rotation angle about the first rotation axis of the seat, and the plate-shaped portion is slid by the slider to an appropriate position for the seated person's footrest. Let Accordingly, even when the seat is rotated about the first rotation axis, the legs of the seated person can be effectively supported according to the posture of the seated person.

According to a second aspect of the present invention, in the first aspect, the main body portion is rotatably supported on the base portion about the second rotation shaft; On the other hand, there is a footrest whose one end is supported by a second shaft extending parallel to the first shaft and whose other end is vertically rotatable about the second shaft and supports the first shaft. and a heater capable of heating by heat transfer and/or radiant heat is provided on the upper surface of the second main body and the upper surface of the plate-like portion. It is characterized by

According to the second invention, the foot sole can be placed on the upper surface of the second body portion to heat the sole portion by heat transfer, and the shin portion can be heated by the heater of the plate-like portion disposed above. can be heated by radiant heat. In addition, the sole can be placed on the plate-shaped portion to heat the sole by heat transfer, and the calf portion can be heated by radiant heat from the heater of the second body portion arranged below. can. As a result, it is possible to further improve the comfort of the person sitting on the seat.

According to a third aspect of the present invention, in the first aspect or the second aspect, when the base portion is moved below the seat, the second rotation axis coincides with the first rotation axis and the seat rotates. It is characterized by being configured to be rotatable integrally with.

According to the third aspect of the invention, when the footrest is moved below the seat, it can be rotated together with the seat with respect to the floor in the same way as the footrest formed integrally with the seat. It is convenient because it can be used as a step.

According to a fourth aspect of the present invention, in the third aspect, the body portion or the base portion has an electric rotation mechanism that rotates the body portion around the second rotation shaft, and the electric rotation mechanism is configured to be inoperable when the second rotating shaft coincides with the first rotating shaft.

According to the fourth aspect of the invention, when the footrest is moved below the seat, it is integrated with the seat and rotated with respect to the floor by the seat rotation mechanism, and when the footrest is not below the seat, the electric rotation mechanism rotates the footrest. Rotation is possible. As a result, it is possible to smoothen the operation when the footrest rotates integrally with the seat.

According to a fifth aspect of the present invention, in any one of the first aspect to the fourth aspect, the base portion is arranged so as to be slidable on a lower rail of a pair of slide rails fixed to the floor. It is characterized by

According to the fifth invention, the sliding movement of the base portion can be achieved with a simple structure.

It is a top view of the footrest which is one embodiment of the present invention. The footrest faces forward and backward. It is attached to the slide rail. It is a side view of the footrest of the said embodiment. Slide rails are omitted. The upper surface of the second body portion 12 and the upper surface of the plate-like portion are horizontal. It is a side view of the footrest of the said embodiment. Slide rails are omitted. This is a state in which the upper surface of the second body portion 12 and the upper surface of the plate-like portion are raised. It is a top view of the footrest of the said embodiment. The plate-like portion faces forward right. It is a top view of the footrest of the said embodiment. The plate-like portion faces forward left. It is a top view which shows the state which has arrange|positioned the footrest of the said embodiment below the seat for motor vehicles. Both the footrest and the car seat face forward and backward. It is a side view which shows the state which has arrange|positioned the footrest of the said embodiment below the seat for motor vehicles. Sliders are omitted. It is a top view which shows the state which has arrange|positioned the footrest of the said embodiment in front of the vehicle seat. Both the footrest and the car seat face forward and backward. It is a top view which shows the state which has arrange|positioned the footrest of the said embodiment in front of the vehicle seat. The plate-shaped portions of the seat and the footrest are facing forward left.

1-9 illustrate one embodiment of the present invention. This embodiment is an example in which the present invention is applied to an automobile seat 1 . In each figure, the arrows indicate the directions of the vehicle and the vehicle seat 1 when the vehicle seat 1 is attached to the floor F of the vehicle. The lateral direction is the width direction of the sheet. In the following description, descriptions regarding directions are based on this direction. Here, each of the automobile seats 1 corresponds to a "seat" in claims.

As indicated by a two-dot chain line in FIGS. 6 to 9, the automobile seat 1 is a rear seat and includes a seat cushion 2 that serves as a seating portion for a seated occupant and a seat back 3 that serves as a backrest. When the occupant is seated in a normal posture, the seat back 3 has lower ends on both left and right sides positioned behind the right and left sides of the seat cushion 2 via recliners (not shown) functioning as rotating shaft devices capable of preventing rotation. connected to the ends. An ottoman 2a is attached to the front end of the seat cushion 2 to support the calves of the seated occupant from below. An automobile seat 1 has an upper rail (not shown) of a seat cushion 2 connected to a lower rail 4 of a pair of right and left slide rails fixed to a floor F and extending in the front-rear direction. Sliding movement is possible. Specifically, as shown in FIG. 7, the main body 2d is attached to the slide base 2b to which the upper rail is attached via the turntable 2c rotatable about the first rotation axis A1 perpendicular to the floor F. ing. The first rotation axis A1 is positioned at the center of each lower rail 4 in the left-right direction when viewed from above. An electric mechanism (not shown) is disposed on the upper rail and the rotating disk 2c, and the slide operation and the rotation operation are enabled by electric power. In front of the automobile seat 1, a footrest 10 is arranged which is connected to a lower rail 4 of a pair of left and right slide rails and which is slidable on a floor F in the front-rear direction. In the body 2d, the footrest 10 is arranged below the seat cushion 2, and when the first rotation axis A1 and the second rotation axis A2 of the footrest 10 are aligned, the body 2d and the first body portion 12a of the footrest 10 are connected. A connecting member 2b1 is attached so that it can be rotated as one. The operation of the connecting member 2b1 will be described later.

As shown in FIGS. 1 to 5, the footrest 10 includes a base portion 11 slidably connected to a pair of left and right lower rails 4, and rotates about a second rotation axis A2 perpendicular to the base portion 11. a releasably supported body portion 12; Further, the footrest 10 has a slider 13 attached to the front end portion of the body portion 12 and a plate-like portion 14 attached to the front side of the slider 13 .

The base portion 11 has a rectangular plate shape when viewed from above, and engages with the lower rails 4 on both left and right sides on the rear side to drive the upper rails (not shown) that are slidable in the front-rear direction. A pair of left and right slide mechanism portions 11a containing a driving device (not shown) are provided. The base portion 11 can move forward and backward on the lower rails 4 by electrically operating the driving device. A body portion 12 is attached to the base portion 11 so as to be rotatable around a second rotation axis A2 via a rotating disk 11b arranged on the upper surface of the base portion 11. As shown in FIG. Specifically, the body portion 12 is divided into a first body portion 12a on the rear side and a second body portion 12b on the front side. rotatably mounted on the The base portion 11 is provided with an electric mechanism 11c that rotates the turntable 11b. By operating the electric mechanism 11c, the body portion 12 rotates around the second rotation axis A2 with respect to the base portion 11. is possible. Further, the base portion 11 is provided with a release lever 11d for releasing the connection between the electric mechanism 11c and the rotating disk 11b. As will be described later, the release lever 11d is brought into contact with the contact portion 5 provided on the floor F when the base portion 11 is moved below the automobile seat 1 and the first rotation axis A1 and the second rotation axis A2 are aligned. The connection between the electric mechanism 11c and the rotating disk 11b is released by contact. When the electric mechanism 11c and the turntable 11b are disconnected, the turntable 11b freely rotates around the second rotation axis A2. Here, the base portion 11 and the electric mechanism 11c respectively correspond to the "base portion" and the "electric rotation mechanism" in the claims.

As shown in FIGS. 1 to 5, in the main body portion 12, a first main body portion 12a attached to the base portion 11 has a second main body portion 12a which extends in the left-right direction and is rotated by a first vertical rotation mechanism 12a1. A rear end portion of the second body portion 12b is attached via an axis P2. By operating the first vertical rotation mechanism 12a1 by an electric mechanism (not shown), the front end portion of the second main body portion 12b rotates around the second axis P2 and moves up and down with respect to the base portion 11. As shown in FIG. A planar heater H1 is provided on the upper surface of the second body portion 12b so that a foot can be put thereon, and which has a heating effect both by heat transfer and radiant heat. A slider 13 is attached to the front end of the second main body portion 12b via a first shaft P1 extending in the horizontal direction and rotated by a second vertical rotation mechanism 12b1. The front rail 13b is engaged with the rear rail 13a so that the slider 13 can slide in the left-right direction. The first shaft P1 is connected to the rear side of the rear rail 13a, and the plate-like portion 14 having a rectangular shape when viewed from above is connected to the front side of the front rail 13b. As a result, the front end portion of the plate-like portion 14 is rotated about the first axis P1 by operating the second vertical rotation mechanism 12b1 by an electric mechanism (not shown) to rotate the slider 13 relative to the second body portion 12b. move up and down through A planar heater H2 is provided on the upper surface of the plate-like portion 14 so that a foot can be put thereon and has a heating effect by both heat transfer and radiant heat. As a result, when the foot is placed on the upper surface of the second main body portion 12b and the front end of the plate-shaped portion 14 is lifted, the sole of the seated person can be heated by the heat transfer of the heater H1, and the radiant heat of the heater H2 heats the sole of the seated person. The shin portion of the seated person can be heated. In addition, when the foot is placed on the upper surface of the plate-shaped portion 14 in the same state, the sole of the seated person can be heated by the heat transfer of the heater H2, and the calf portion of the seated person can be heated by the radiant heat of the heater H1. can be warmed. FIG. 4 shows a state in which the first body portion 12a is rotated rightward about the second rotation axis A2 with respect to the base portion 11. As shown in FIG. FIG. 5 shows a state in which the first body portion 12a is rotated leftward about the second rotation axis A2 with respect to the base portion 11. As shown in FIG. Here, the rear rail 13a and the front rail 13b respectively correspond to "one side" and "the other side" in the claims.

As shown in FIG. 7, when the footrest 10 is slid rearward and placed below the seat cushion 2, the first rotation axis A1 of the main body 2d of the seat cushion 2 and the second rotation axis of the first main body portion 12a of the footrest 10 are rotated. With A2 aligned, the rearward movement of the footrest 10 is stopped by a stopper (not shown). At this time, the main body 2d of the seat cushion 2 and the first main body portion 12a of the footrest 10 are connected by the operation of the connecting member 2b1 so that they can rotate about the first rotation axis A1 and the second rotation axis A2. Specifically, the connecting member 2b1 is a mountain-shaped member when viewed from the side, and the top of the mountain is supported on the lower surface of the slide base 2b by a rotating shaft 2b11 extending in the left-right direction. It is formed to have a portion 2b13. When the footrest 10 is not below the seat cushion 2, it is biased to rotate so that the rear slope portion 2b12 is lowered and the front slope portion 2b13 is raised as indicated by the two-dot chain line. When the footrest 10 moves below the seat cushion 2, the upper rear corner portion of the electric mechanism 11c comes into contact with the lower surface side of the rear slope portion 2b12 to rotate the rear slope portion 2b12 in the lifting direction. The lower end of the front slope portion 2b13 is engaged with the engaging portion (not shown) of the first main body portion 12a of the footrest 10, and the main body 2d and the first main body portion 12a are integrated to form the first rotation axis A1 and the second rotation axis. It becomes possible to rotate around A2. At the same time, the release lever 11d of the footrest 10 comes into contact with the contact portion 5 provided on the floor F to release the connection between the electric mechanism 11c and the rotating disk 11b. This state is the state shown in FIG. 6, and when the electric mechanism of the automobile seat 1 is operated, the footrest 10 rotates integrally around the first rotation axis A1 and the second rotation axis A2 and tilts left and right. can be directed in any direction. When the footrest 10 moves forward from below the seat cushion 2, the connecting member 2b1 and the release lever 11d return to their original states, enabling the electric mechanism 11c to rotate the turntable 11b.

FIG. 8 shows a state in which a footrest 10 facing in the front-rear direction is arranged at a distance in front of the vehicle seat 1 facing in the front-rear direction. In this state, as shown in FIG. 3, by placing the foot on the upper surface of the second body portion 12b and lifting the front end of the plate-like portion 14, the sole of the seated person is heated by the heat transfer of the heater H1. In addition, the shins of the seated person can be heated by the radiant heat of the heater H2. In addition, while the plate-like portion 14 is arranged with respect to the second body portion 12b in the same manner, the feet of the seated person are placed on the upper surface portion of the plate-like portion 14 to heat the sole of the seated person by the heat transfer of the heater H2, and the heater H1 is heated. The radiant heat can heat the calves of the seated person. The inclination of the second main body portion 12b with respect to the first main body portion 12a and the inclination of the plate-like portion 14 with respect to the second main body portion 12b are determined by the first vertical rotation mechanism 12a1 or the second vertical rotation mechanism 12a1 according to the preference of the seated occupant. It can be adjusted by operating the driving mechanism 12b1.

FIG. 9 shows a state in which the automobile seat 1 is rotated to incline leftward from the state of FIG. 8, and the footrest 10 is rotated and the plate-like portion 14 is slid accordingly. Specifically, the automobile seat 1 is rotated leftward obliquely from the forward facing direction by an angle θ around the first rotation axis A1, and the first main body portion 12a of the footrest 10 is rotated leftward obliquely from the frontward and rearward direction. is rotated about the second rotation axis A2 by an angle .theta. As a result, the position of the footrest 10 shifts to the right from the position where the foot of the seated occupant on the automobile seat 1 can be placed. Therefore, the slider 13 is actuated to slide the plate-like portion 14 to the left with respect to the main body portion 12 so that the footrest can be placed on the upper surface of the plate-like portion 14 of the footrest 10 by eliminating this deviation. As a result, the seated occupant can place their feet on the upper surface of the plate-like portion 14 and heat the soles of the seated occupants by heat transfer from the heater H2 as necessary. Although not shown, when the automobile seat 1 is rotated to incline to the right, the footrest 10 is rotated accordingly, and the plate-like portion 14 is slid to the right. Action and effect are exhibited.

The present embodiment configured as described above has the following effects. First, the automobile seat 1 and the footrest 10 are both directed forward. In this state, the base portion 11 of the footrest 10 is slid to an appropriate position on the lower rail 4, and the second vertical rotation mechanism 12b1 is operated to rotate the plate-like portion 14 in the vertical direction. Make an appropriate angle for the footrest. Next, the automobile seat 1 is rotated about the first rotation axis A1, and the first body portion 12a of the footrest 10 is rotated about the second rotation axis A2 by the same angle in the same direction. By actuating the slider 13 in this state, the plate-like portion 14 is slid to a position suitable for placing the foot of the seated occupant. Accordingly, even when the automobile seat 1 is rotated about the first rotation axis A1, the legs of the seated occupant can be effectively supported according to the posture of the seated occupant. That is, the horizontal position of the plate-like portion on which the soles of the seated occupant are placed and the angle with respect to the floor F can be changed according to the physique and posture of the occupant seated on the automobile seat 1, and the plate-like portion can be changed when the automobile seat 1 is rotated. The shaped portion 14 can be arranged at the optimum position for the seated occupant who has turned.

Further, the main body portion 12 has a first main body portion 12a and a second main body portion 12b which is rotatable with respect to the first main body portion 12a and on which a foot can be placed. A heater H1 is arranged on the upper surface portion, and a heater H2 is arranged on the upper surface portion of the plate-like portion 14 . As a result, the sole of the foot can be placed on the upper surface of the second main body portion 12b to heat the sole portion by heat transfer, and the shin portion can be heated by the heater H2 of the plate-like portion 14 disposed above. It can be heated by radiant heat. In addition, the sole can be placed on the plate-like portion 14 to heat the sole by heat transfer, and the heater H1 of the second body portion 12b arranged below heats the calf by radiant heat. can do. That is, it is possible to further improve the comfort of the seated occupant when seated.

Further, when the footrest 10 is moved below the vehicle seat 1, the second rotation axis A2 coincides with the first rotation axis A1, and the first main body portion 12a is rotatable integrally with the vehicle seat 1. there is Thus, like the footrest integrated with the automobile seat 1, it can be rotated with respect to the floor F together with the automobile seat 1, and the plate-like portion 14 can be used as a step when the seated occupant gets in and out of the automobile. so convenient.

Furthermore, by operating the electric mechanism 11c arranged on the base portion 11, the first body portion 12a can be rotated with respect to the base portion 11 about the second rotation axis A2. It is configured to be disabled when the second rotation axis A2 coincides with the first rotation axis A1. When the footrest 10 is moved below the vehicle seat 1 , the footrest 10 is integrated with the vehicle seat 1 and rotated with respect to the floor F by the rotation mechanism of the vehicle seat 1 . Further, when the footrest 10 is not under the automobile seat 1, the footrest 10 can be rotated by the electric mechanism 11c. As a result, the operation when the footrest 10 rotates integrally with the vehicle seat 1 can be made smooth. In addition, the base portion 11 is arranged so as to be slidable on the lower rails 4 of a pair of slide rails fixed to the floor F. As shown in FIG. As a result, the sliding movement of the base portion 11 on the floor F can be achieved with a simple structure.

Although specific embodiments have been described above, the present invention is not limited to those configurations, and various modifications, additions, and deletions are possible without changing the gist of the present invention. For example:

1. In the above embodiment, the main body portion 12 of the footrest 10 is composed of the first main body portion 12a and the second main body portion 12b. The shaped portion 14 may be configured to be vertically rotatable. In this case, the heater is arranged on the upper surface of the main body.

2. In the above embodiment, the case where the present invention is applied to the automobile seat 1 has been described, but the present invention is not limited to this and may be applied to seats mounted on ships, trains, airplanes, etc. other than automobiles. .

1 Automotive seat (seat)
2 seat cushion 2b slide base 2b1 connecting member 2c turntable 2d main body 4 lower rail 10 footrest 11 base portion (base portion)
11a slide mechanism portion 11b rotary disk 11c electric mechanism (electric rotation mechanism)
11d release lever 12 body portion 12a first body portion 12a1 first vertical rotation mechanism 12b second body portion 12b1 second vertical rotation mechanism 13 slider 13a rear rail (one side)
13b Front rail (other side)
14 Plate-like portion A1 First rotation axis A2 Second rotation axis P1 First axis P2 Second axis F Floor H1 Heater H2 Heater θ Angle

Claims (4)

A footrest that can be slid toward or away from a seat rotatable about a first rotation axis perpendicular to the floor,
a base portion capable of parallel movement with respect to the floor;
a body portion supported rotatably about a second rotation axis perpendicular to the floor with respect to the base portion;
One side is supported by a first shaft extending in the width direction of the seat disposed on the side opposite to the seat in the body portion in a state where the front-rear direction of the seat and the front-rear direction of the footrest are aligned, and the other side is supported by the first shaft. a slider that is slidable in the direction in which a first axis extends and that is vertically rotatable about the first axis;
a plate-like portion on which a foot can be placed, provided on the other side of the slider;
A footrest, wherein the base portion is rotatable integrally with the seat when the base portion is moved below the seat so that the second rotation shaft coincides with the first rotation shaft. 2. The main body according to claim 1, wherein said main body has a first main body portion supported rotatably about said second rotating shaft with respect to said base portion, and one end of said first main body portion is connected to said first shaft. a second main body portion supported by a second shaft extending parallel to the second shaft, the other end of which is vertically rotatable about the second shaft, and supports the first shaft and is capable of being placed on a foot; has
A footrest, wherein heaters capable of heating by heat transfer and/or radiation heat are arranged on the upper surface of the second body portion and the upper surface of the plate-like portion. 3. In claim 1 or claim 2, the main body or the base has an electric rotation mechanism that rotates the main body about the second rotation shaft,
The footrest, wherein the electric rotating mechanism is configured to be disabled when the second rotating shaft coincides with the first rotating shaft. 4. The footrest according to claim 3 , wherein said base portion is slidably disposed on a lower rail of a pair of slide rails fixed to said floor.

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