JP2021030910A - Footrest - Google Patents

Abstract

To provide a footrest which can effectively support feet of a seated person in accordance with a posture of the seated person and is adaptable to a rotating seat in the footrest which can be moved by sliding in a direction to approach or to be separated relative to the seat.SOLUTION: A footrest 10 can be moved by sliding relative to a vehicle seat 1 which is rotatable about a first rotating shaft A1 perpendicular to a floor F. The footrest includes: a base part 11 which is movable in parallel to the floor F; a body part 12 which is supported relative to the base part 11 to be rotatable about a second rotating shaft A2 perpendicular to the floor F; a slider 13 in which one side is supported by a first shaft P1 extending in a width direction of the vehicle seat 1 provided at an opposite side of the vehicle seat 1 in the body part 12, and the other side is slidable in an extending direction of the first shaft P1, and which is rotatable in a vertical direction about the first shaft P1; and a plate-like part 14 which is provided at the other side in the slider 13, and where feet can be placed.SELECTED DRAWING: Figure 6

Description

The present invention relates to a footrest.

There are known footrests that can be slid closer or further away from a vehicle seat installed on the floor of a vehicle. For example, in the footrest described in Patent Document 1, if the foot position of the occupant seated on the vehicle seat is different from the footrest position, the slide device can be operated to move the footrest to the occupant's foot position.

Japanese Unexamined Patent Publication No. 2019-43456

In the footrest described in Patent Document 1, the footrest can be slid and moved in the direction of approaching or separating from the vehicle seat, but the height and angle of the surface on which the foot is placed cannot be changed. There was a problem that it was difficult to support the legs according to the posture. Further, when the vehicle seat is a so-called rotating seat that can rotate about an axis perpendicular to the floor, if the vehicle seat is rotated with respect to the floor, the position of the footrest shifts from the proper position. There was a problem.

In view of such a problem, an object of the present invention is to be able to effectively support the seated person's foot according to the seated person's posture in a footrest that can be slid and moved in the direction of approaching or separating from the seat. It is to provide a footrest that is adaptable to a rotating seat.

The first invention of the present invention is a footrest capable of sliding and moving in a direction of approaching or separating from a seat that can rotate about a first rotation axis perpendicular to the floor, with respect to the floor. A base portion capable of translation, a main body portion rotatably supported around a second rotation axis perpendicular to the floor with respect to the base portion, a front-rear direction of the seat, and a front-rear direction of the footrest. One side is supported by the first axis extending in the width direction of the sheet arranged on the opposite side of the sheet in the main body portion, and the other side is slidable in the extending direction of the first axis. At the same time, it is characterized by having a slider that can rotate in the vertical direction about the first axis, and a plate-shaped portion that is arranged on the other side of the slider and can be mounted on the foot.

According to the first invention, the horizontal position of the plate-shaped portion on which the seater's foot is placed and the angle with respect to the floor can be changed according to the physique and posture of the seated person, and the plate-shaped portion when the seat is rotated. Can be placed in the optimum position for the rotated seated person. Specifically, first, the base portion is slid to an appropriate position in the horizontal direction, and the plate-shaped portion is rotated in the vertical direction around the first axis to make an angle suitable for the seated person's footrest. Next, the main body is rotated around the second rotation axis according to the rotation angle around the first rotation axis of the seat, and the plate-shaped part is slid to a position suitable for the seated person's foot rest by the slider. Let me. As a result, even when the seat is rotated about the first rotation axis, the feet of the seated person can be effectively supported according to the posture of the seated person.

In the second aspect of the present invention, in the first invention, the main body portion is formed on a first main body portion rotatably supported by the base portion about the second rotation axis and the first main body portion. On the other hand, one end is supported by a second axis extending parallel to the first axis, and the other end is rotatable in the vertical direction around the second axis, and a footrest supporting the first axis is provided. It has a possible second main body portion, and a heater capable of heat transfer and / or heating by radiant heat is provided on the upper surface portion of the second main body portion and the upper surface portion of the plate-shaped portion. It is characterized by being.

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

In the third invention of the present invention, in the first invention or the second invention, when the base portion is moved below the sheet, the second rotation axis coincides with the first rotation axis and the sheet. It is characterized in that it is configured to be rotatable integrally with.

According to the third invention, when the footrest is moved below the seat, it can be rotated with respect to the floor together with the seat in the same manner as the footrest formed integrally with the seat, and the plate-shaped portion can be rotated when the seated person gets on and off. It is convenient because it can be used as a step.

In the fourth aspect of the present invention, in the third invention, the main body portion or the base portion has an electric rotation mechanism for rotating the main body portion about the second rotation axis, and the electric rotation mechanism. Is characterized in that the operation is disabled when the second rotation axis coincides with the first rotation axis.

According to the fourth invention, when the footrest is moved below the seat, it is rotated with respect to the floor by the rotation mechanism of the seat together with the seat, and when the footrest is not below the seat, the electric rotation mechanism is used. It can rotate. As a result, the operation when the footrest rotates integrally with the seat can be smoothed.

In any of the first invention to the fourth invention, the fifth invention of the present invention is such that the base portion is slidably arranged on the lower rail of a pair of slide rails fixed to the floor. It is characterized by that.

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

It is a top view of the footrest which is one Embodiment of this invention. The footrest is facing forward and backward. It is attached to the slide rail. It is a side view of the footrest of the said embodiment. The slide rail is omitted. The upper surface of the second main body portion 12 and the upper surface of the plate-shaped portion are horizontal. It is a side view of the footrest of the said embodiment. The slide rail is omitted. It is a state in which the upper surface portion of the second main body portion 12 and the upper surface portion of the plate-shaped portion are raised. It is a top view of the footrest of the said embodiment. The plate-shaped part faces the front right. It is a top view of the footrest of the said embodiment. The plate-shaped part faces the left front. It is a top view which shows the state which the footrest of the said embodiment is arranged under the automobile seat. Both the footrest and the car seat are facing forward and backward. It is a side view which shows the state which the footrest of the said embodiment is arranged under the automobile seat. The slider is omitted. It is a top view which shows the state which the footrest of the said embodiment is arranged in front of the automobile seat. Both the footrest and the car seat are facing forward and backward. It is a top view which shows the state which the footrest of the said embodiment is arranged in front of the automobile seat. The plate-shaped part of the seat and footrest faces the left front.

1 to 9 show an embodiment of the present invention. The present 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 automobile and the automobile seat 1 when the automobile seat 1 is attached to the floor F of the automobile. The left-right direction is the width direction of the seat. In the following description, the description regarding the direction shall be made with reference to this direction. Here, each of the automobile seats 1 corresponds to a "seat" within the scope of the claims.

As shown by the alternate long and short dash 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. In the normal posture in which the occupant sits, the seat back 3 has the lower ends on the left and right sides of the seat back 3 behind the left and right sides of the seat cushion 2 via a reclining device (not shown) that functions as a rotation shaft device capable of stopping rotation, respectively. It is connected to the end. An ottoman 2a that supports the calf of the seated occupant from below is attached to the front end of the seat cushion 2. In the automobile seat 1, the upper rail (not shown) of the seat cushion 2 is connected to the lower rail 4 of a pair of left and right slide rails fixed to the floor F and extending in the front-rear direction, and the seat cushion 2 is connected to the lower rail 4 in the front-rear direction on the floor F. It is said that the slide can be moved. Specifically, as shown in FIG. 7, the main body 2d is attached via a rotating disk 2c that can rotate around the first rotating shaft A1 that is perpendicular to the floor F with respect to the slide base 2b to which the upper rail is attached. ing. The first rotation axis A1 is located at the center of each lower rail 4 in the left-right direction in a top view. An electric mechanism (not shown) is provided on the upper rail and the rotating disk 2c, and the sliding operation and the rotating operation are enabled by electric power. In front of the automobile seat 1, a footrest 10 that is connected to the lower rails 4 of a pair of left and right slide rails and is slidable in the front-rear direction on the floor F is arranged. When the footrest 10 is arranged below the seat cushion 2 of the main body 2d and the first rotation axis A1 and the second rotation axis A2 of the footrest 10 coincide with each other, the main body 2d and the first main body portion 12a of the footrest 10 are connected. A connecting member 2b1 that can rotate as a unit is attached. The operation of the connecting member 2b1 will be described later.

As shown in FIGS. 1 to 5, the footrest 10 rotates about a base portion 11 slidably connected to a pair of left and right lower rails 4 and a second rotation axis A2 perpendicular to the base portion 11. It has a body portion 12 that is supported as possible. Further, the footrest 10 has a slider 13 attached to the front end portion of the main body portion 12, and a plate-shaped 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 drives an upper rail (not shown) and an upper rail that are engaged with the lower rails 4 on both left and right sides on the rear side and can slide in the front-rear direction. A pair of left and right slide mechanism portions 11a incorporating a drive device (not shown) are arranged. By electrically operating the drive device, the base portion 11 can move in the front-rear direction on the lower rail 4. The main body portion 12 is rotatably attached around the second rotation shaft A2 via a turntable 11b arranged on the upper surface of the base portion 11. Specifically, the main body portion 12 is divided into a first main body portion 12a on the rear side and a second main body portion 12b on the front side, and the first main body portion 12a is centered on the second rotation axis A2 with respect to the base portion 11. It is rotatably attached to. The base portion 11 is provided with an electric mechanism 11c that rotates the rotary disk 11b, and by operating the electric mechanism 11c, the rotation operation of the main body portion 12 with respect to the base portion 11 around the second rotation shaft A2. 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 turntable 11b. As will be described later, the release lever 11d is attached to the abutting portion 5 arranged on the floor F when the base portion 11 moves below the automobile seat 1 and the first rotating shaft A1 and the second rotating shaft A2 coincide with each other. The contact is made to release the connection between the electric mechanism 11c and the turntable 11b. When the connection between the electric mechanism 11c and the rotating disk 11b is released, the rotating disk 11b freely rotates about the second rotating shaft A2. Here, the base portion 11 and the electric mechanism 11c correspond to the "base portion" and the "electric rotation mechanism" in the claims, respectively.

As shown in FIGS. 1 to 5, in the main body portion 12, a second main body portion 12a extends in the left-right direction to the front end portion of the first main body portion 12a attached to the base portion 11 and is rotated by the first vertical rotation mechanism 12a1. The rear end portion of the second main body portion 12b is attached via the shaft P2. By operating the first vertical rotation mechanism 12a1 with an electric mechanism (not shown), the front end portion of the second main body portion 12b rotates about the second axis P2 and moves up and down with respect to the base portion 11. The upper surface of the second main body portion 12b can be placed on a foot, and a planar heater H1 that exerts a heating effect by both heat transfer and radiant heat is arranged. A slider 13 is attached to the front end of the second main body portion 12b via a first axis P1 that extends in the left-right direction and is rotated by the second vertical rotation mechanism 12b1. The slider 13 is capable of sliding in the left-right direction by engaging the front rail 13b with the rear rail 13a. The first axis P1 is connected to the rear surface side of the rear rail 13a, and a plate-shaped portion 14 having a rectangular shape in a top view is connected to the front surface side of the front rail 13b. As a result, by operating the second vertical rotation mechanism 12b1 with an electric mechanism (not shown), the front end portion of the plate-shaped portion 14 rotates about the first axis P1 and the slider 13 with respect to the second main body portion 12b. It moves up and down through. The upper surface of the plate-shaped portion 14 can be placed on a foot, and a planar heater H2 that exerts a heating effect by both heat transfer and radiant heat is arranged. As a result, when the foot is placed on the upper surface of the second main body portion 12b and the front end portion 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. The shin part of the seated person can be heated. Further, when the foot is placed on the upper surface portion 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 is added by the radiant heat of the heater H1. Can be warmed. The state in which the first main body portion 12a is rotated to the right with respect to the base portion 11 about the second rotation axis A2 is the state shown in FIG. Further, the state in which the first main body portion 12a is rotated to the left with respect to the base portion 11 about the second rotation axis A2 is the state shown in FIG. Here, the rear rail 13a and the front rail 13b correspond to the "one side" and the "other side" of the claims, respectively.

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 The rearward movement of the footrest 10 is stopped by a stopper (not shown) in a state where it coincides with A2. At this time, by the operation of the connecting member 2b1, the main body 2d of the seat cushion 2 and the first main body portion 12a of the footrest 10 are connected and can rotate around the first rotating shaft A1 and the second rotating shaft A2. Specifically, the connecting member 2b1 is a member having a chevron shape in a side view, and the top of the mountain is supported on the lower surface of the slide base 2b by a rotation shaft 2b11 extending in the left-right direction, and the rear slope portion 2b12 and the front slope are supported. It is formed to have a portion 2b13. When the footrest 10 is not below the seat cushion 2, the rear slope portion 2b12 is lowered and the front slope portion 2b13 is raised as shown by the alternate long and short dash 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, and the rear slope portion 2b12 is rotated in the lifting direction accordingly. The lower end of the front slope portion 2b13 engages with an 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 into the first rotation shaft A1 and the second rotation shaft. It becomes rotatable around A2. At the same time, the release lever 11d of the footrest 10 comes into contact with the contact portion 5 arranged on the floor F to release the connection between the electric mechanism 11c and the turntable 11b. This state is shown in FIG. 6, and when the electric mechanism of the automobile seat 1 is operated, the footrest 10 integrally rotates around the first rotating shaft A1 and the second rotating shaft A2 and tilts to the left and right. Can be turned in the right direction. When the footrest 10 moves from below the seat cushion 2 to the front, the connecting member 2b1 and the release lever 11d return to their original states, and the rotating disk 11b can be rotated by the electric mechanism 11c.

FIG. 8 shows a state in which the footrests 10 facing the front-rear direction are arranged in front of the automobile seat 1 facing the front-rear direction. In this state, as shown in FIG. 3, the foot is placed on the upper surface of the second main body portion 12b and the front end portion of the plate-shaped portion 14 is lifted to heat the sole of the seated person by heat transfer of the heater H1. At the same time, the shin portion of the seated person can be heated by the radiant heat of the heater H2. Further, in the same arrangement state of the plate-shaped portion 14 with respect to the second main body portion 12b, the foot is placed on the upper surface portion of the plate-shaped portion 14 to heat the sole of the seated person by heat transfer of the heater H2, and the heater H1 is heated. The calf portion of the seated person can be heated by radiant heat. The inclination of the second main body portion 12b with respect to the first main body portion 12a and the inclination of the plate-shaped 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 according to the preference of the seated occupant. It can be adjusted by operating the moving mechanism 12b1.

FIG. 9 shows a state in which the automobile seat 1 is rotated so as to be tilted to the left from the state shown in FIG. 8, the footrest 10 is rotated accordingly, and the plate-shaped portion 14 is slid and moved. Specifically, the automobile seat 1 is rotated about the first rotation axis A1 by an angle θ diagonally to the left from the direction facing forward, and the first main body portion 12a of the footrest 10 is slanted to the left from the direction facing the front-rear direction. The second rotation axis A2 is rotated about the second rotation axis A2 by an angle θ. Then, the position of the footrest 10 shifts to the right side from the position where the seated occupant of the automobile seat 1 can rest on the foot. Therefore, the slider 13 is operated so that the footrest 10 can be placed on the upper surface of the plate-shaped portion 14 by eliminating this deviation, and the plate-shaped portion 14 is slid to the left with respect to the main body portion 12. As a result, the seated occupant can place his / her foot on the upper surface of the plate-shaped portion 14 and heat the sole of the seated person by heat transfer of the heater H2 as needed. Although not shown, the same applies when the automobile seat 1 is rotated so as to be tilted to the right, the footrest 10 is rotated accordingly, and the plate-shaped portion 14 is slid to the right, only the direction is changed. The action effect is played.

The present embodiment configured as described above has the following effects. First, the automobile seat 1 and the footrest 10 are both facing 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-shaped portion 14 in the vertical direction and the seated occupant. Make an appropriate angle for the footrest. Next, the automobile seat 1 is rotated about the first rotation axis A1, and the first main body portion 12a of the footrest 10 is rotated about the second rotation axis A2 in the same direction and by the same angle. In this state, by operating the slider 13, the plate-shaped portion 14 is slid and moved to a position suitable for the seated occupant's footrest. As a result, even when the automobile seat 1 is rotated around the first rotation axis A1, the feet of the seated occupant can be effectively supported according to the posture of the seated occupant. That is, the horizontal position of the plate-shaped portion on which the sole of the seated occupant is placed and the angle with respect to the floor F can be changed according to the physique and posture of the seated occupant of the automobile seat 1, and the plate when the automobile seat 1 is rotated. The shape portion 14 can be arranged at an optimum position for the rotated seated occupant.

Further, the main body portion 12 has a first main body portion 12a and a second main body portion 12b that can be rotated with respect to the first main body portion 12a and on which a foot can be placed. A heater H1 is disposed on the upper surface portion, and a heater H2 is disposed on the upper surface portion of the plate-shaped 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 is heated by the heater H2 of the plate-shaped portion 14 arranged above. It can be heated by radiant heat. Further, the sole of the foot can be placed on the plate-shaped portion 14 to heat the sole of the foot by heat transfer, and the calf portion can be heated by radiant heat by the heater H1 of the second main body portion 12b arranged below. 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 automobile seat 1, the second rotating shaft A2 coincides with the first rotating shaft A1 and the first main body portion 12a can rotate integrally with the automobile seat 1. There is. As a result, the footrest integrated with the automobile seat 1 can be rotated with respect to the floor F together with the automobile seat 1, and the plate-shaped portion 14 can be used as a step when the seated occupant gets on and off the automobile. So it's convenient.

Further, by operating the electric mechanism 11c arranged on the base portion 11, the first main body portion 12a can be rotated about the second rotation shaft A2 with respect to the base portion 11, and the electric mechanism 11c is the first. The operation is disabled when the two rotation shafts A2 coincide with the first rotation shaft A1. Then, when the footrest 10 is moved below the automobile seat 1, the footrest 10 is integrally rotated with the automobile seat 1 with respect to the floor F by the rotation mechanism of the automobile seat 1. Further, when the footrest 10 is not below 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 automobile seat 1 can be smoothed. In addition, the base portion 11 is arranged so as to be slidable on the lower rail 4 of the pair of slide rails fixed to the floor F. As a result, the slide movement of the base portion 11 on the floor F can be established with a simple structure.

Although the specific embodiments have been described above, the present invention is not limited to those configurations, and various changes, additions, and deletions can be made without changing the gist of the present invention. For example, the following can be mentioned.

1. 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, but the present invention is not limited to this, and the slider 13 and the plate are attached to the main body portion as an integral main body portion. The shape portion 14 may be configured to be rotatable in the vertical direction. In this case, a 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 seat 1 for automobiles has been described, but the present invention is not limited to this, and the present invention 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 Rotating board 2d Main body 4 Lower rail 10 Footrest 11 Base part (base part)
11a Slide mechanism 11b Rotating disk 11c Electric mechanism (electric rotation mechanism)
11d Release lever 12 Main body 12a 1st main body 12a1 1st vertical rotation mechanism 12b 2nd main body 12b1 2nd vertical rotation mechanism 13 Slider 13a Rear rail (one side)
13b Front rail (other side)
14 Plate-shaped part A1 1st rotation axis A2 2nd rotation axis P1 1st axis P2 2nd axis F Floor H1 Heater H2 Heater θ Angle

Claims (5)

A footrest that can be slid in the direction of approaching or separating from a seat that can rotate around the first rotation axis that is perpendicular to the floor.
A base that can be translated with respect to the floor
A main body portion rotatably supported around a second rotation axis perpendicular to the floor with respect to the base portion, and a main body portion.
One side is supported by a first axis extending in the width direction of the seat arranged on the opposite side of the main body of the main body in a state where the front-rear direction of the seat and the front-back direction of the footrest are aligned, and the other side is said. A slider that can slide in the extending direction of the first axis and can rotate in the vertical direction around the first axis.
A footrest having a plate-shaped portion on the other side of the slider on which a foot can be placed. In claim 1, the main body portion has a first main body portion rotatably supported with respect to the base portion about the second rotation axis, and one end portion with respect to the first main body portion is the first shaft. A second main body portion that is supported by a second axis extending in parallel with the above and whose other end can rotate in the vertical direction about the second axis and that supports the first axis and can be mounted on a foot. Have and
A footrest in which a heater capable of heat transfer and / or heating by radiant heat is provided on the upper surface portion of the second main body portion and the upper surface portion of the plate-shaped portion. In claim 1 or 2, the base portion is configured to be rotatable integrally with the seat so that the second rotation axis coincides with the first rotation axis when the base portion is moved below the seat. Footrest. In claim 3, the main body portion or the base portion has an electric rotation mechanism for rotating the main body portion about the second rotation shaft.
The electric rotation mechanism is a footrest configured to be inoperable when the second rotation axis coincides with the first rotation axis. In any one of claims 1 to 4, the base portion is a footrest that is slidably arranged on the lower rails of a pair of slide rails fixed to the floor.

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