JP2877715B2 - Vehicle stool footrest device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is mounted on a railway vehicle, a car, an aircraft, a ship, or the like, and is attached to a lower portion of a rear side of a vehicle stool and disposed behind the stool. The present invention relates to a footrest device on which a seated occupant of another seat can rest his or her feet.

[0002]

2. Description of the Related Art Conventionally, as this type of a vehicle stool footrest device, for example, in addition to a front hanging type provided on the front side of a seat portion of a stool, more generally, a stool base is provided. Some are mounted on the back side of a frame (seat frame). As the footrest attached to the underframe, specifically, FIGS.
It is represented by two types as shown in FIG.

The footrest shown in FIG. 17 and FIG. 18 has a base end of a one-piece arm member 3 extending rearward and downward and fixed to the back side of a frame 2 of a seat 1. Foot plate 4
Is rotatably mounted.

In the footrest shown in FIGS. 19 and 20, a pair of parallel link mechanisms 5 and 5 extending downward and rearward are provided on the back side of the underframe 2 of the seat 1 so as to be vertically swingable. The footrest plate 6 is rotatably mounted between the distal ends of the parallel link mechanisms 5, 5. The foot plate 6 is set so as to always maintain a constant angle with respect to the horizontal plane even if it swings up and down due to the parallel movement of the parallel link mechanisms 5 and 5.

[0005] As shown in FIG.
Comprises a mounting bracket 7 fixed to the underframe 2, a main link 8, a sub-link 8a pivotally supported by the mounting bracket 7, and a tip link 9 connecting the tips of the links 8, 8a. Main link 8 and sub link 8a
And extend in parallel with each other. The swing angle of the two links 8, 8a can be locked in several stages by a ratchet mechanism.

[0006]

However, FIG.
Also, in the footrest shown in FIG. 18, although the design is interesting, since the arm member 3 is fixed, the vertical position of the footrest plate 4 cannot be freely adjusted, and there is room for improvement in terms of usability. In the footrest shown in FIG. 19 and FIG.
Can be adjusted up and down, but the number of parts is large,
There is a possibility that the number of assembling steps may increase.

Further, in the latter footrest, each link 8, 8 constituting the parallel link mechanism 5 for keeping the angle of the footrest plate 6 constant.
20a are separated from each other and are exposed, and from the viewpoint of ensuring safety, for example, the main link 8 is prevented from being unnecessarily pinched between the links 8, 8a as shown in FIG. It is necessary to take measures such as curving the gap to make the gap as small as possible, or attaching a cover (not shown) or the like separately.

The present invention has been made in view of the above-mentioned problems of the prior art, and is not only novel in design, but also has a simple and safe configuration to adjust the vertical position of the footrest. An extremely high practical value footrest device for a vehicle seat, which can be adjusted arbitrarily and can keep the angle of the footrest portion constant irrespective of a change in the vertical position of the footrest portion. It is an object.

[0009]

The gist of the present invention to achieve the above-mentioned object lies in the following items.

[1] A footrest device which is attached to a lower portion on the rear side of a vehicle seat (10) and on which a seated person of another seat (10) disposed behind the seat (10) can rest a foot. In (20), one arm portion (2) extending outward from the lower portion of the vehicle seat (10) on the rear side of the lower portion is provided.
1) is swingably supported in the vertical direction, and the arm portion (2)
A pivot (37) is provided on the swinging end (32) side of (1) at a substantially right angle to the arm (21) and extends in both directions, and a footrest (60) for placing a foot on the pivot (37). ) Is rotatably supported, and when the footrest portion (60) is held at a predetermined angle with respect to a substantially horizontal plane, the angle becomes equal to the arm portion (21).
The arm portion (21) is provided with a cover link (30) having a groove-shaped cross section that forms a parallel link mechanism, and a groove (30a) of the cover link (30). And (b) a sub-link (40) contained in the footrest device (20) of the vehicle seat (10).

[2] At least a part of the tip link (50) connecting the swinging ends (32, 42) of the cover link (30) and the sub-link (40) is replaced with the cover link (30). The footrest device (2) of the vehicle seat (10) according to claim 1, wherein the footrest device (2) is included in the groove (30a).
0).

[3] The tip link (50) is provided with the pivot (37), and the footrest (60) pivotally supported by the pivot (37) is provided with a stopper (64) while the stopper (64) is provided. 64) is engaged with the tip link (5) to hold the footrest (60) at a predetermined angle.
3. The footrest device (20) for a vehicle seat (10) according to claim 2, wherein the footrest device is provided in (0).

[4] To prevent interference between the footrest (60) and the swinging end (32) of the arm (21) when the footrest (60) is rotated, 4. The footrest device (20) for a vehicle seat (10) according to claim 1, wherein the hanging portion (60) is formed by dividing the arm portion (21) therebetween.

[0014]

[0015]

According to the footrest device (20) of the vehicle seat (10) according to the present invention, the footrest (60) is externally supported by one arm (21). Compared to a structure in which both sides of the footrest plate are supported by a pair of arm link mechanisms or the like, the structure is relatively simple, and the design can be novel in appearance.

The one arm portion (21) is externally supported by the lower part of the back of the vehicle seat (10) so as to be vertically swingable, so that the user can adjust his / her foot posture. The vertical position of the footrest (60) can be adjusted to fit.

A pivot (37) is provided at the swinging end (32) of the arm (21) at a substantially right angle to the arm (21) and extends in both directions, and the footrest is attached to the pivot (37). Since the part (60) is pivotally supported, for example, the footrest part (6)
When 0) is not used, the footrest (60) may be stored by rotating it to a position where it does not interfere.

When the footrest (60) is adjusted to a predetermined angle with respect to a substantially horizontal plane, and the foot is held so as to rest on the foot, the angle is set regardless of the swing operation of the arm (21). Since it is configured to be kept constant, it is not necessary to adjust the angle of the footrest portion (60) every time the vertical position of the arm portion (21) is adjusted, which is convenient.

A parallel link mechanism may be used to keep the angle of the footrest (60) constant, and the arm (21)
To the cover link (3
0) and the sub-link (40) included in the groove (30a) of the cover link (30),
Although it is a parallel link mechanism, the arm part (21) can be integrated into one in appearance.

An end link (5) connecting between the swing ends (32) of the cover link (30) and the sub-link (40).
When at least a part of 0) is included in the groove (30a) of the cover link (30), the mechanism itself can be more completely covered and covered by the cover link (30), which is excellent in safety.

The footrest (60) is connected to a pivot (37).
When the rotation is made about the arm, the footrest (60) is moved to the arm (21) in order to avoid interference between the footrest (60) and the swing end (32) of the arm (21). Is formed in a divided manner, the footrest (60) can be rotated to a more sufficient position.

[0022]

An embodiment of the present invention will be described below with reference to the drawings. 1 to 16 show an embodiment of the present invention.
As shown in FIG. 3, the vehicle stool 10 is, for example, a vehicle seat provided in a railway vehicle, and includes a seat portion 11 and a backrest portion 12 supported at its rear end so as to be able to adjust a tilt angle. Consisting of Armrests 1 on both sides of seat 11
3 and 13 are provided. Note that the vehicle stool 10 is installed on the vehicle floor A via a footrest 15.

A plurality of vehicle stools 10 are arranged at predetermined intervals in the front-rear direction, and a footrest device 20 is attached to a lower portion on the back side of each vehicle stool 10.
The footrest device 20 includes a seat 1 to which it is attached.
This is a seat attachment for a seated person of another seat 10 arranged behind 0 to place a foot thereon. As shown in FIG. 1 and FIG. 2, the footrest device 20 supports one arm portion 21 on the outer side so as to be vertically swingable at a lower portion on the rear side of the vehicle seat 20. A pivot 37 extending in both directions is provided on the swing end side, and a footrest 60 for placing a foot on the pivot 37 is rotatably pivoted.

The arm 21 is one in appearance,
It is configured to form a parallel link mechanism. That is, as shown in FIG. 1, the arm 21 is
), And a cover bracket 30 fixed to the rear end of the seat frame 14 as an underframe and a cover link 30 pivotally supported by the support bracket 22 so as to be vertically swingable separately. Link 40, and each link 30, 4
The leading end link 50 connecting between the swinging ends of 0 is connected to each other so as to form a parallelogram.

As shown in FIGS. 1 and 4 to 6, the cover link 30 is formed of a so-called channel material having a groove-shaped cross section as a whole, and the base end 31 is connected to the support bracket 22 through a pivot 33. It is pivotally supported in the vertical direction. On the other hand, the tip 32 of the cover link 30 extending rearward
Is bent downward, and the tip 32 has
A lower end 52 of a tip link 50 described later is rotatably connected via a pivot 37.

A cam member 34 is rotatably connected to the pivot 33 that supports the base end 31 of the cover link 30. An engaged surface with which the outer edge of the cam member 34 engages is connected to the base end 31. Is formed. That is, the rotation angle of the entire arm portion 21 can be appropriately adjusted by rotating the cam member 34.

A plurality of locking teeth 34a, 34a... Are provided at one end of the cam member 34, and a claw member 36 (see FIG. 1) which can selectively mesh with these teeth 34a is provided on the support bracket. It is pivotally supported on the 22 side so as to be swingable. The locking teeth 34a, 34a of the cam member 34
And the claw member 36, the cam member 34 can be non-rotatably restrained, and the entire arm 21 can be held at a predetermined angular position.

As shown in FIGS. 1, 7 and 8, the sub-link 40 is formed from a linearly extending tube member.
The cover link 30 is incorporated so as to be included in the groove 30a. The base end 41 of the sub link 40
Is pivotally supported by the support bracket 22 via a pivot 43 so as to be vertically swingable. On the other hand, the distal end 42 of the sub-link 40 extending rearward is provided with a distal link 50 described below.
Is pivotally connected via a pivot 47.

As shown in FIGS. 1 and 10 to 12, the distal link 50 is formed of a substantially triangular member, and is incorporated so that most of the distal link 50 is included in the groove 30a of the cover link 30. Have been. As described above, the upper end 51 of the distal link 50 is connected to the sub-link 4 via the pivot 47.
0, and the lower end 52 of the distal link 50 is connected to the distal end 32 of the cover link 30 via the pivot 37.
It is connected to. Each of the links 30, 4 described above
Each axis 33, 37, 4 interconnecting 0, 50, etc.
The connection between lines 3 and 47 is set to be a parallelogram just by connecting the lines.

Further, as shown in FIG.
Both ends of the pivot 37 penetrated at the lower end 52 of the zero extend in both directions so as to intersect the arm 21 at a substantially right angle, and the footrest 60 is pivotally supported rotatably. The front end 53 of the tip link 50 extends out of the groove 30a of the cover link 30. The front end 53 is engaged with a stopper 64 of a footrest 60 described below to make the footrest 60 a predetermined angle. An engaging portion 54 for holding the protruding portion is provided so as to extend in both side directions. The engaged portion 54 is formed of a tubular member,
A damper 55 for reducing the impact when engaging with the damper 4 is attached.

As shown in FIG. 1 and FIG.
When the footrest 6 rotates about the pivot 37,
In order to avoid interference between the arm portion 21 and the swing end side of the arm portion 21, the arm portion 21 is formed with the arm portion 21 interposed therebetween.
That is, the arm 21 includes a pair of treads 61 attached to both ends of the pivot 37 extending to both sides from the swing end of the arm 21. Each tread plate 61 is integrally fixed to the pivot 37 by a mounting screw 65,
It rotates with the pivot 37.

More specifically, as shown in FIGS. 7 and 8, cover members 62 and 6 are provided on the front and back surfaces of the tread plate 61, respectively.
3 is stuck. Further, a stopper 64 is provided at the base end portion 61 a of the tread plate 61 to engage the engaged portion 54 of the distal link 50 to keep the front and back surfaces of the tread plate 61 substantially horizontal.

Next, the operation will be described. As shown in FIG.
The leg portion 60 of the leg device 20 is held at a predetermined height position by the arm portion 21. At this time, the cam member 34 at the base end 31 of the cover link 30 is engaged with an appropriate position on the engaged surface of the flange 35, and the cam member 34 cannot be rotated by the claw member 36 meshing with the teeth 34a. Locked to. Thereby, the arm portion 21 is restrained from swinging.

The pair of treads 61 of the footrest 60 is held in a substantially horizontal use state by the stoppers 64 engaging the engaged portions 54 of the distal link 50. At this time, as shown in FIG. 3, the occupant H of the rear stool 10 can relax with the toe placed on the footrest 60. When the footrest portion 60 is not used, it is sufficient to rotate each tread plate 61 so as to jump up to the position shown by the imaginary line in FIG. 1 around the pivot 37 which is the rotation center of each tread plate 61.

Since the footrest 60 is divided into left and right treads 61 with the swinging end of the arm 21 therebetween, interference between the footrest 60 and the arm 21 can be avoided. it can. Therefore, each tread 61 is connected to their base end 6.
The upper surface 1a can be sufficiently rotated to a position where the upper surface side of the front link 50 engages with the engaged portion 54 of the tip link 50, and can be stored out of the way.

In order to adjust the height of the footrest 60, the locked state of the cover link 30 is first released, and then
What is necessary is to swing the whole arm part 21 up and down to the desired height position, and lock the cover link 30 again so that it cannot swing. Although the number of the arm portions 21 is one in appearance, the angle of the footrest portion 60 in a substantially horizontal state, which forms a parallel link mechanism, is kept constant.

More specifically, the support bracket 22 fixed to the seat frame 14, the cover link 30, the sub-link 40, and the distal link 50 correspond to the joints of the parallel link mechanism. Even if the sub-link 40 swings up and down, their tips 37, 47
The angle of the leading end link 50 that connects them to the substantially horizontal plane is always kept constant. Therefore, the footrest 60 is connected to the distal link 50.
When held in a substantially horizontal state, the footrest 60 is always kept substantially horizontal regardless of the swing operation of the arm 21, so that every time the vertical position of the arm 21 is adjusted, the footrest There is no need to re-adjust the angle of 60, and it is convenient.

The sub-link 40 is included in the groove 30a of the cover link 30, and most of the tip link 50 is also included in the groove 30a of the cover link 30, and the arm 21 is formed by a parallel link mechanism. Despite its appearance, it is integrated into one. Thereby, compared to the conventional foot plate in which both sides of the foot plate are supported by a pair of arm link mechanisms or the like, the design is relatively simple and the design can be novel in appearance. In addition, the fine linking portion of the parallel link mechanism can be covered and covered by the cover link 30, which is excellent in safety.

The footrest device for a vehicle seat according to the present invention is not limited to the configuration specifically shown in the above embodiment. For example, the pivot supporting the footrest connects the cover link and the tip link, but may be provided separately from the tip link.

[0040]

According to the footrest device for a vehicle stool according to the present invention, one arm portion is externally supported so as to be able to swing up and down at the lower rear portion of the stool, and the arm portion is connected to the parallel link. It is composed of a cover link with a groove-shaped cross section that forms a mechanism, and a sub-link included in the groove, and a footrest is pivotally supported rotatably via a pivot on the swinging end side of the arm. The parallel link mechanism keeps the angle of the footrest constant regardless of the swing of the arm, which is convenient and easy to use. The vertical position of the hook can be appropriately adjusted.

[Brief description of the drawings]

FIG. 1 is a side view showing a footrest device for a vehicle stool according to an embodiment of the present invention.

FIG. 2 is a plan view showing a footrest device for a vehicle stool according to an embodiment of the present invention.

FIG. 3 is a side view showing an installed state of a stool equipped with a vehicle stool according to an embodiment of the present invention;

FIG. 4 is a side view showing a cover link constituting a footrest device for a vehicle stool according to an embodiment of the present invention.

FIG. 5 is a view taken along line V in FIG. 4;

FIG. 6 is a view taken in the direction of arrow VI in FIG. 4;

FIG. 7 is a side view showing a sub-link constituting a footrest device for a vehicle stool according to an embodiment of the present invention.

FIG. 8 is a view taken along line VIII of FIG. 7;

FIG. 9 is a view taken in the direction of the arrow IX in FIG. 7;

FIG. 10 is a side view showing a distal link constituting a footrest device for a vehicle stool according to one embodiment of the present invention.

FIG. 11 is a view taken along line XI of FIG. 10;

FIG. 12 is a view taken along the line XII in FIG. 10;

FIG. 13 is an exploded perspective view showing a swing end side of an arm portion constituting the footrest device for a vehicle stool according to one embodiment of the present invention.

FIG. 14 is a side view showing a tread plate of a footrest portion constituting the footrest device for a vehicle seat according to one embodiment of the present invention.

FIG. 15 is a view on arrow XV of FIG. 14;

FIG. 16 is a view taken along the line XVI in FIG. 14;

FIG. 17 is a perspective view showing a conventional stool equipped with one footrest device.

FIG. 18 is a perspective view showing a conventional footrest device.

FIG. 19 is a rear view showing a stool equipped with another conventional foot device.

FIG. 20 is a perspective view showing another conventional footrest device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Vehicle seat 11 ... Seat 20 ... Footrest device 21 ... Arm part 30 ... Cover link 37 ... Axis 40 ... Sub-link 50 ... Tip link 54 ... Engaged part 60 ... Footrest part 64 ... Stopper

──────────────────────────────────────────────────の Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B60N 3/06 A47C 7/50

Claims (4)

(57) [Claims] 1. A footrest device which is attached to a lower portion on the back side of a vehicle stool and on which a seated person of another stool disposed behind the stool rests a foot. An arm extending outwardly from the lower portion, and supporting one arm in a vertically swingable manner, and a pivot extending substantially in a direction perpendicular to the arm and extending in both directions at the swinging end of the arm. When the footrest on which a foot rests is pivotally supported on the pivot, and the footrest is held at a predetermined angle with respect to a substantially horizontal plane, the angle is affected by the swing operation of the arm. The arm portion includes a cover link having a groove-shaped cross section that forms a parallel link mechanism, and a sub-link included in a groove of the cover link. Stool for vehicle stool. 2. The vehicle according to claim 1, wherein at least a part of a tip link connecting each swinging end of the cover link and the sub-link is included in a groove of the cover link. Stool footrest device. 3. The end link is provided with the pivot, and a stopper is provided on the footrest pivotally supported by the pivot, and a stopper is provided for engaging the stopper to hold the footrest at a predetermined angle. The footrest device for a vehicle stool according to claim 2, wherein an engaging portion is provided on the distal end link. 4. In order to avoid interference between the footrest and the swinging end side of the arm when the footrest is rotated, the footrest is formed with the arm part therebetween. The footrest device for a vehicle stool according to claim 1, 2 or 3, wherein: