JPH10137070A - Footrest mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To cope with differences in physique, etc., among seaters by enabling a footrest to change position by means of a simple link mechanism part. SOLUTION: This footrest mechanism has a footrest main body 17 provided below the back of a front seat 1 to function as a footrest for seaters on rear seats. The footrest main body 17 comprises a fixed hinge arm 12 extended roughly horizontally from below the back of the seat 1, an intermediate link 14 pivotally supported at one end against the rear end of the arm 12, and an arm part 16 located on the side of the footrest main body 17 and pivotally supported against the other end of the intermediate link 14. Also, a first stopper 21 regulating the rotation of the intermediate link 14 is provided at one end of the intermediate link 14. A second stopper 22 regulating the rotation of the arm part 16 is provided at the end of the arm part 16 of the footrest main body 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a footrest mechanism which functions as a footrest for a occupant of a rear seat in a vehicle seat used for, for example, a railway vehicle.

[0002]

2. Description of the Related Art It is well known that a footrest, which is used as a footrest for a occupant of a rear seat, is provided below a rear portion of a front seat in a seat used for a railway vehicle, an automobile, an aircraft, a ship, or the like. .

[0003] Such a conventional footrest mechanism is disclosed in, for example, Japanese Utility Model Laid-Open Publication No.
No. 175933, No. 2-143227,
Further, many devices having various structures as disclosed in JP-A-8-182576 have been proposed. Each of these conventional footrest mechanisms has a simple structure in which the posture of the footrest body can be changed between a use position where the footrest body protrudes rearward of the seat and a storage position where the footrest body does not hinder by a jumping operation or the like.

[0004]

However, the occupants sitting on the above-mentioned seats have different heights and physiques, such as men, women or children. The position of the foot is different depending on the difference. For this reason, if the seat is simply provided below the rear portion of the front seat, the foot of the occupant does not reach the footrest main body, and even if the footrest can be put on, the seat cannot be seated in a comfortable posture.

[0005] In particular, in the conventionally known footrest mechanism, the position of the footrest body is often inappropriate for the physique and sitting posture of the occupant, and some measures taking such points into consideration should be taken. Is desired.

In the conventional footrest mechanism, a mechanism using a spring is often used to lock the footrest body at a desired position, change the use position, or move the footrest body to the storage position. . For this reason, the structure of the footrest mechanism is likely to be complicated, it is troublesome to assemble, and there are many problems in durability. Therefore, it is necessary to consider these points.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and has a simple link configuration, in which a footrest main body serving as a footrest for a occupant of a rear seat is provided on a front seat. It is an object of the present invention to obtain a footrest mechanism capable of securing an optimal footrest position regardless of a difference in a sitting posture and coping with the position.

[0008]

According to a first aspect of the present invention, there is provided a footrest mechanism provided below a rear portion of a front seat and functioning as a footrest for a seated occupant of a rear seat. A left and right pair of fixed hinge arms extending substantially horizontally from below the back of the front seat, and one end pivoting at the rear end of the fixed hinge arm. A left and right pair of intermediate links pivotally supported, and a footrest body having a pair of left and right arms pivotally supported at the other end of the intermediate link, respectively, at one end of the intermediate link. A first link that restricts rotation of the intermediate link by engaging with one of the upper and lower edges of the hinge arm;
The rotation restricting stopper is provided, and the tip of the arm portion of the footrest body is engaged with either the side edge of the intermediate link or the locking portion on the back side of the front seat, thereby turning the arm portion. A second rotation regulating stopper for regulating movement is provided.

In the footrest mechanism according to a second aspect of the present invention, when the footrest body is positioned below the fixed hinge arm, a part of the arm portion is positioned near a pivot portion with the intermediate link. A third rotation restricting stopper for restricting the rotation of the arm by locking is provided.

Further, the footrest mechanism according to a third aspect of the present invention includes: a first use state position in which the footrest body is projected rearward of the seat by the rotation position of the intermediate link;
The posture can be changed between a second use state position located above the fixed hinge arm and a third use state position located below the fixed hinge arm.

According to the present invention, the posture of the footrest main body provided on the front seat can be changed to at least three positions by a simple link structure including the fixed hinge arm, the intermediate link, and the arm portion. Therefore, regardless of the physique and sitting posture of the occupant of the rear seat, the occupant can place the foot on the footrest surface of the footrest body in an optimal and stable state, and furthermore, a relaxed and comfortable sitting posture. Thus, the function as a footrest can be sufficiently exhibited.

[0012]

1 to 7 show an embodiment of a footrest mechanism according to the present invention. In these figures, a footrest mechanism 10 includes a front seat 1 as shown in FIG. The link mechanism 11 is provided below the back of the camera so that the posture can be changed. The footrest mechanism 10 is a foot for placing the feet of the occupants 31, 32, 33 of a rear seat (not shown) disposed behind the front seat 1, as shown in FIGS. It functions as a platform.

The front seat 1 includes a seat cushion 4 rotatably provided on a leg 3 provided on a floor 2 of a passenger compartment of a railway car, for example, and a reclining mechanism (not shown) behind the seat cushion 4. The seat back 5 and the like are provided so as to be tiltable. Reference numeral 6 denotes an armrest.

As shown in FIGS. 1 to 3, the footrest mechanism 10 includes a pair of left and right fixed hinge arms 12 extending in a substantially horizontal state from below the rear surface of the front seat 1. At the rear end of each of the fixed hinge arms 12, a pair of left and right intermediate links 14 is provided, one end of which is pivotally supported by a pivot 13.

Further, at the other end of the intermediate link 14, a pair of left and right arm portions 16 pivotally supported by a pivot portion 15 is provided. These arms 16
Are provided integrally with the footrest body 17.

One end of the intermediate link 14 is engaged with one of the upper and lower edges of the fixed hinge arm 12 to restrict the rotation of the intermediate link 14 for a first rotation restricting operation. The stopper 21 is provided with a bent piece, a regulating pin, or the like.

The arm 16 of the footrest body 17
Of the intermediate link 14 or the front seat 1
The second rotation restricting stopper 22 for restricting the rotation of the arm portion 16 by engaging with one of the locking portions 23 provided on a part of the rear surface side of the second member has a bent piece or a regulating pin or the like. It is provided in.

As shown in FIGS. 5 and 6, when the footrest main body 17 is in the second locking position P2 in which the footrest main body 17 is The third rotation restricting stopper 24 for restricting the rotation of the arm portion 16 is bent by locking the portion around the pivotal support portion 15 with the intermediate link 14, and a suitable means such as a bent piece or a regulating pin is used. Is provided.

The footrest body 17 has a first use state position (third locking position P3) protruding rearward of the seat 1 due to the rotation position of the intermediate link 14, and an upper side of the fixed side hinge arm 12. And a third use state position (a second lock position P2) located below the fixed side hinge arm 12 in the second use state position (first lock position P1). The posture can be changed to the position.

As shown in FIGS. 4 and 6, the posture of the footrest body 17 is changed from the first locking position P1 to the second locking position P2, and from the second locking position P2 to the third locking position P2. Can be easily performed by the rotational displacement to the locking position P3, and the rotation regulating stoppers 21, 22, 23,
24 allows locking in a required posture state.

According to such a configuration, the footrest body 17 attached to the front seat 1 is moved to at least three positions by the simple link mechanism 11 including the fixed hinge arm 12, the intermediate link 14, and the arm 16. It is very easy to change the position and arrange the positions. In particular, the locking of the footrest main body 17 in each position is performed only by the link structure and the stopper means, and the spring mechanism and the like which have been conventionally required are unnecessary, so that the structure is simple.

The occupants 31 to 33 of the rear seats
Even if the physique is different like a man, a woman or a child, or the sitting posture is different, the foot is stably placed on the optimum position of the footrest surface of the footrest body 17 according to each situation. In addition, a comfortable sitting posture can be obtained in a relaxed state.

Here, regarding the footrest main body 17 and the link mechanism 11, consideration is given to the relationship between the length of the footrest, the shape of the footrest surface, the rotational position of the link system, etc. Instead, the footrest position of the footrest according to each physique and sitting posture can be easily selected in a relaxed posture.

The present invention is not limited to the structure described in the above embodiment, and it goes without saying that the shapes and structures of the seat 1 and the various parts constituting the footrest mechanism 10 can be appropriately modified or changed. No. For example, as the configuration of the link mechanism unit 11 that enables the posture of the footrest main body 17 to be changeable and the stoppers 21 to 24 in each unit, appropriate modifications are conceivable.

Further, the footrest mechanism according to the present invention is not limited to the railcar described above, but can be applied to a suitable vehicle and other seats.

[0026]

As described above, according to the footrest mechanism of the present invention, the left and right fixed hinge arms extending substantially horizontally from below the back of the front seat, and one end at each rear end. And a footrest body having left and right arms rotatably supported at the other end of the intermediate link. A first rotation restricting stopper that restricts the rotation of the intermediate link by engaging with one of the upper and lower edges of the hinge arm, and the intermediate link is provided at the tip of the arm portion of the footrest body. Since the second rotation restricting stopper for restricting the rotation of the arm portion by engaging with either the side edge of the front seat or the locking portion on the back side of the front sheet is provided, the configuration is simple. Nevertheless, the excellent described below Achieve the results.

According to the present invention, the footrest body provided on the front seat can be arranged in at least three positions with a simple link configuration including the fixed hinge arm, the intermediate link, and the arm portion. . In particular, according to the present invention, the footrest body is locked in each position only by the link structure, and a spring mechanism or the like is unnecessary, so that the structure is simple and the durability is excellent.

According to the present invention, regardless of the difference in the physique and sitting posture of the occupant of the rear seat, the occupant places his / her foot in an optimal position on the footrest surface of the footrest body in a stable state. Moreover, a relaxed and comfortable sitting posture can be obtained, and the function as a footrest can be exhibited.

In particular, according to the present invention, the length of the footrest, the arcuate shape of the footrest surface,
By considering the relationship with the rotation position, it is possible to easily select a footrest that has a position and posture according to each physique and sitting posture regardless of men, women and children as occupants, improving compatibility Can be done.

Further, according to the present invention, when the footrest body is positioned below the fixed hinge arm, a part of the arm is locked near the pivotal support with the intermediate link, thereby turning the arm. A first use state position in which a third rotation restricting stopper for restricting movement is provided, and the footrest main body projects rearward of the seat by the rotation position of the intermediate link;
Since the posture can be changed between the second use state position located above the fixed hinge arm and the third use state position located below the fixed hinge arm, the above-described operation and effect can be achieved. It can be demonstrated even more.

[Brief description of the drawings]

FIG. 1 is a schematic side view of the entire seat illustrating a use state of a footrest body of a footrest mechanism according to the present invention at a first locking position.

2A is a schematic perspective view showing a configuration of a main part of a footrest mechanism according to the present invention, FIG. 2B is a detailed view of a part b of FIG. 2A, and FIG.

FIG. 3 is a perspective view of a footrest body of a footrest mechanism according to the present invention and an arm unit integrated therewith.

FIG. 4 is a partial side view illustrating a posture change of the footrest body of the footrest mechanism according to the present invention from a first locking position to a second locking position.

FIG. 5 is a schematic side view of the entire seat illustrating a use state of the footrest body of the footrest mechanism according to the present invention at a second locking position.

FIG. 6 is a partial side view illustrating a posture change of the footrest body of the footrest mechanism according to the present invention from the second locking position to the third locking position.

FIG. 7 is a schematic side view of the entire seat illustrating a use state of the footrest body of the footrest mechanism according to the present invention at a third locking position.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front seat 2 Cabin floor 3 Legs 4 Seat cushion 5 Seat back 6 Armrest part 10 Footrest mechanism 11 Link mechanism part 12 Fixed hinge arm 13 Pivot part 14 Intermediate link 15 Pivot part 16 Arm part 17 Footrest body 21 First Rotation restricting stopper 22 second rotation restricting stopper 23 locking portion 24 third rotation restricting stopper 31 seated person 32 seated person 33 seated person P1 first locking position P2 second locking Position P3 Third locking position

Claims (3)

[Claims] 1. A footrest mechanism provided with a footrest body provided below a rear portion of a front seat and functioning as a footrest for a seated person of a rear seat, wherein the footrest mechanism extends substantially horizontally from below a rear portion of the front seat. A pair of left and right fixed hinge arms, a pair of left and right intermediate links pivotally supported at one end to rear ends of the fixed hinge arms, and a pivot at the other end of the intermediate link, respectively. And a footrest body having a pair of left and right arms that are freely pivotally supported. The intermediate link is turned by engaging one end of the intermediate link with one of the upper and lower edges of the hinge arm. A first rotation restricting stopper for restricting movement is provided, and is engaged with either a side edge of the intermediate link or a locking portion on a rear surface side of the front seat at a tip of an arm portion of the footrest main body. By Footrest mechanism, characterized in that a second rotation restricting stopper for restricting the rotation of the arm portion. 2. When the footrest body is positioned below a fixed hinge arm, a part of the arm portion is locked near a pivotal support portion with the intermediate link, thereby rotating the arm portion. 2. The footrest mechanism according to claim 1, further comprising a third rotation restricting stopper for restricting the rotation. 3. A first use state position in which the footrest main body protrudes rearward of a seat according to a rotation position of the intermediate link, and a second position located above a fixed hinge arm.
3. The footrest mechanism according to claim 1, wherein a posture can be changed between a use state position and a third use state position located below the fixed hinge arm. 4.