JP2675265B2 - Directionally variable seats for multiple people - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to relates to a direction variable seat, multiple people at the same time suited especially for lightweight seat
It relates more persons-hook Direction variable seats so as to be eclipsed.

[0002]

2. Description of the Related Art Seats used in vehicles are
The direction can be changed so as to match the traveling direction of the vehicle or to allow a front person and a rear person to face each other.

Examples of such a variable direction seat include, for example, Japanese Utility Model Laid-Open No. 57-199138 and Japanese Utility Model Laid-Open No. 58-921.
Various items have been conventionally proposed in Japanese Patent No. 39 and the like. In these conventionally proposed variable direction seats, the seat frame that constitutes the seat is basically supported on the base via a rotating mechanism, and this rotating mechanism is considerably complicated and has a large weight. It was something. The reason why this rotating mechanism was heavy and complicated was that it needed to have sufficient strength to support, for example, an entire three-seat seat and, in some cases, a seat. This was to prevent this seat from interfering with other front and rear seats when changing direction.

If the variable-direction seat is heavy as a whole as described above, it is one of the factors that makes it difficult to speed up the vehicle or train equipped with the variable-direction seat.
In addition, the fact that the structure has a complicated portion was likely to cause a failure.

In addition, since this type of direction-variable seat basically changes its direction by rotating a seat frame that constitutes the seat with respect to a base, for example, Japanese Patent Publication No. 56-47015. Underframe as shown in the publication
A rotating plate as shown in JP-B-45-27724, a rotary seat as shown in JP-B-58-1258, or as shown in JP-B-52-27449. It is performed using a turntable.
The structures shown in these publications are basically disk-shaped bases for supporting rotating objects, and are disclosed in, for example, Japanese Patent Publication No. 56-47015. The following is an examination of the existing structure.

That is, the structure for supporting the underframe for mounting and fixing the seat cushion on the leg stand, which is disclosed in Japanese Patent Publication No. 56-47015, is adopted in this type of variable direction seat. As shown in FIG. 1 of the above publication, a "roller" is arranged on a disk-shaped support plate on the side of the pedestal, and the platform is mounted through this "roller". The frame is rotatable. Therefore, at first glance, it seems to be an efficient structure for rotatably supporting the underframe with respect to the pedestal. Take this "roll"
As the one used, Japanese Utility Model Publication No. 61-155236.
"Rotating device for vehicle seats" proposed by
Also seen.

[0007] However, When I think going back to the origin of the things that the direction variable seat seat, than those that direction variable seat seat design in focus that at the time of rotation, to that of when rather than be used as a seat It must be designed with a focus on it. For example, the seats used in trains and the like occupy two or three seats, but naturally, the number of seated passengers is not always limited. In that case, it is often the case that only one person sits at one end of a three-seater seat. Considering how to apply the load in this case, the disk-shaped seat as described above is used as the base. and in the seat it has, as shown schematically in FIG. 16, the this imposed load its axis of rotation in the twisting direction of course.
One person is sitting at the edge of the seat and the axis of rotation is in the center of the seat.

If this is the case, the problem can be solved by making the diameter of the above-mentioned "disc-shaped" sufficiently large, but this type of variable-direction seats installed in vehicles such as trains is limited. This "disk" cannot be enlarged because it must be able to effectively utilize the space. In general, as shown in FIG. 17, the diameter of this disk can be at most about the width of the underframe.

Therefore, the above-mentioned variable-direction seat according to the prior art has no choice but to adopt a complicated structure in order to make the rotation supporting mechanism of the footrest and the underframe strong, for example. However, the increased weight makes it unsuitable for speeding up trains. Moreover, in the conventional direction-variable seat that can be used by a plurality of people, since an eccentric load is often applied, there is also a problem that the proportions of wear and damage of the components constituting the seat inevitably increase.

[0010] Therefore, the present inventors have, as a result of failure has been intensively studied for several persons-hook Direction variable seats that can the be made small yet weight reduction, substantially the entire seat frame base constituting a seat The present invention has been completed by newly discovering that the configuration of being placed completely on top produces a good result.

[0011]

[0008] The present invention has been made based on the circumstances described above, the problem to be solved is, conventional structural in several people-hook Direction variable seat of this type Complexity and weight.

The object of the present invention is not only to have a sufficient function as a seat whose direction can be changed, but also to reliably support the seat frame with an extremely simple structure. can, moreover to provide a plurality of persons countercurrent variable seat side for hanging that can the be much lighter than the weight of the prior art.

[0013]

In order to solve the above problems BRIEF SUMMARY OF THE INVENTION, means that the invention is taken, when described with reference to the accompanying drawings corresponding to embodiments, the one that make up the "plurality of seats seats In a seat in which the seat frame 20 is rotatably supported with respect to the base 10 and the seating direction can be changed,
The upper portion of the base 10 is configured as a quadrilateral frame having an almost space inside, and the portion of the seat frame 20 that abuts the base 10 has the same width as the base 10 and the inside is almost space. The sliding member 1 is formed in the shape of a quadrilateral frame, and is formed in the shape of a quadrilateral frame on at least one of the surfaces of the seat frame 20 or the base 10 in contact with each other.
5 or 25 is fixed and this sliding member 15 or 25 is
Through the sliding contact between the seat frame 20 and the base 10.
More to, provided one of the vertical pivot axis 40 to the respective centers of the base 10 and the seat frame 20, you characterized in that the seat frame 20 and rotatable with respect to the base 10 how for people hanging is the direction variable seat 100 ".

[0014]

The function and mode of use of the present invention will be described together with the mode of use of the present invention.
When, or not a, in the stop state of the plurality of people-hook Direction variable seat 100 of this, the seat frame 20 constituting the seat, with the same width and the base 10 abutting portions to the base 10 It is in the shape of a quadrilateral frame having an almost inner space, and is placed on a sliding member 15 provided on the entire upper surface of the base 10 having an inner space. Therefore, the entire seat is supported by the rectangular frame of the base 10, and the seat is supported with its weight distributed over the rectangular frame of the base 10. If this is expressed in reverse, since the base 10 supports the seat frame 20 by its square frame, even if the configurations of the base 10 and the seat frame 20 are simple, the seat by the base 10 Can be sufficiently supported.

Then, the base 10 and the sliding member 1 on it
5,及 Beauty seat frame 20 in its entirety as the so-called "frame-like", and since have configured as inside is almost space and reduces the overall weight by only this Of course, in the case of conventional technology, a pair of "discs"
While members such as "rollers" for rotatably moving these and these are required, these members in the prior art are completely unnecessary in the present invention, and as a result, the overall weight is significantly reduced. It has been reduced to. Therefore,
A plurality of persons hanging for Direction variable seat 100, this installation was a train or the like of spin - it has become as a de of readily achieved.

[0016] Here, a plurality of people hanging for the Direction variable seat of this 10
When the user of 0 wants to change the direction of the seat, in a later-described embodiment of the present invention, the foot pedal 31 provided on the base 10 side is depressed to move the swing stopper 30 to the seat frame 20 side. It is removed from the opening 23 provided in the support plate 21 of FIG. As a result, the seat frame 20 forming the seat can be rotated with respect to the base 10, so that the user pushes the seat to rotate 180 degrees about the vertical rotation axis 40.

[0017] It is important Te rotation when the smell of this seat,
The seat frame 20 constituting the seat is in sliding contact with the base 10 as it is, but since the sliding member 25 and the sliding member 15 are provided on the lower surface of the seat frame 20 and the upper surface of the base 10, respectively, The sliding member 25 and the sliding member 15 are in direct sliding contact with each other. Therefore, both slide members 2 5
And the sliding members 15 are in smooth sliding contact with each other.
I, the rotation of the seat is the occurrence of abnormal noise and smoothly performed without.

When the seat is rotated by a certain amount, in the present embodiment, the support plate 21 provided on the other side of the seat frame 20 approaches the guide plate 12 of the base 10, and the rollers on the seat frame 20 side. The roller 22 provided at 22 abuts on the lower side of the guide plate 12 on the base 10 side. When the seat is further rotated, all rollers 22 provided on the support plate 21 of the seat frame 20 are rotated.
Comes into contact with the lower surface of the guide plate 12, and finally the stopper 24 on the seat frame 20 side comes into contact with the stopper 14 on the base 10 side to prevent rotation of the seat, and the support plate 21 on the seat frame 20 side. The swing stopper 30 is fitted in the opening 23 provided in the.

[0019] Thus, Russia over La 22 provided on the support plates 21 located on the left and right of the seat frame 20, since comes into contact with the lower surface of the guide plate 12 provided on the left and right of the base 10, the seat The frame 20 is firmly supported by the left and right guide plates 12 of the base 10 via the respective support plates 21.
0, that is, the seat does not rattling with respect to the base 10. The seat frame 20 rotates only in a range of 180 ° when the stopper 24 provided on the support plate 21 contacts the stopper 14 provided on the guide plate 12 on the base 10 side.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the embodiments shown in the drawings. 1 and 2, a Ru engaged to the onset bright plurality
Is shown the front view and a side view of a human-hook Direction variable seat 100, a plurality of persons hanging for Direction variable seat 100 of this for one group stand 10 that will be fixed on the floor of the vehicle, the seat one seat frame 20 that make up the one in which the rotatably supported by the vertical shaft 40 which is located in the center of the base 10.

The base 10 is as shown in FIGS. 3 to 5, and its basic structure is a rectangular frame. That is,
The base 10 has a quadrangular shape in which an upper portion of the base 10 is combined with, for example, an angle member to form a space, and the upper portion of the base 10 is formed as shown in FIGS. 1 and 2. In addition, for example, it is configured to be supported by a plurality of legs made of an angle member, and the weight is considerably reduced. In addition. This base 1
The outer peripheral surface of 0 may be provided with a cover.

At the center of the base 10, as shown in FIGS.
As shown in FIG. 0, one vertical rotation shaft 40 that rotatably supports the seat frame 20 that constitutes the seat with respect to the base 10.
Is provided with a support portion 11. This support 11 is
Practice are provided integrally with the beam <br/> member 16 which is disposed apart a predetermined distance from the center of the base 10.

Further, as shown in FIGS. 3 and 4, guide plates 12 projecting in an arc shape around a vertical rotation shaft 40 supported by the supporting portion 11 are provided at both left and right ends of the base 10.
Are integrally provided with the base 10. In this embodiment, each guide plate 12 is provided on the upper end of the base 10 so as to form the same plane as the upper surface of the base 10, but the position of each guide plate 12 is on the seat frame 20 side described later. The support plate 21 and each roller 22 provided on the support plate 21 may be appropriately changed and implemented. Further, since each guide plate 12 guides and supports each roller 22, an inclined surface for easily guiding each roller 22 is formed on this, or an elastic material for each roller 22 is provided. You may implement.

Further, a pedal support portion 13 is provided below the guide plate 12 at the passage side portion of the base 10, and the pedal support portion 13 is shown in FIGS. 6 and 7. As shown, the foot pedal 31 is assembled so as to be vertically movable. This foot pedal 31 and this base 1
The return spring 32 hung between the 0 side always returns to the initial position.

[0025] Then, a plurality of people how for the hanging of this direction variable seat 10
In No. 0, the seat frame 20 forming the seat has a quadrangular frame-like shape in which the portion contacting the base 10 has the same width as the base 10 and the inside is almost a space. Is placed on a sliding member 15 provided on the entire upper surface of the base 10, which is almost a space. Therefore, the entire seat is supported by the rectangular frame of the base 10, and the seat is supported with its weight distributed over the rectangular frame of the base 10. If this is expressed in reverse, since the base 10 supports the seat frame 20 by its square frame, even if the configurations of the base 10 and the seat frame 20 are simple, the seat by the base 10 Can be sufficiently supported.

In other words, this direction-variable seat for multiple passengers
In the case of 100, sliding to the side of the seat frame 20 that constitutes the seat
The moving member 25 is provided, or the above-mentioned sliding member is provided on the base 10 side.
The moving member 15 may be provided and implemented. these
Each sliding member 15 or 25 of the
Since the sliding contact is made, the base 10 side or the seat frame
Either side of the
It should be fixed on one of the siding surfaces.

The seat frame 20 constituting the seat is shown in FIGS.
As shown in FIG. 2, by connecting two pipe members arranged horizontally in the lower part of the seat by a pair of support plates 21, a quadrilateral frame having the same width as the base 10 and an almost space inside is formed. It is configured as a shape, and in the central part,
As shown in FIG. 10, it has a support portion formed corresponding to the support portion 11 on the base 10 side to support the vertical rotation shaft 40. The size relationship between the seat frame 20 and the base 10 is as shown in FIGS.
As shown in, the width of the seat frame 20 is substantially the same as the width of the base 10. The reason why the width of the seat frame 20 is made substantially the same as the width of the base 10 is that the seat is completely placed on the base 10. In the present embodiment, a sliding member 25 is provided on the lower surface of the seat frame 20 facing the base 10.

As shown in FIGS. 9 and 13, the pair of left and right support plates 21 provided integrally with the seat frame 20 are arcuate about the vertical rotation shaft 40, that is, each of the bases 10 side. The guide plate 12 is formed in an arc shape that matches the outer shape of the guide plate 12. This is because the seat frame 20 rotates with respect to the base 10, so that the support plate 2 on the seat frame 20 side is provided.
This is for preventing 1 from interfering with the guide plate 12 on the base 10 side, and for ensuring that the rollers 22 provided on the support plate 21 contact the guide plate 12 of the base 10.

Each roller 22 provided on each support plate 21 facilitates relative movement between the support plate 21 on the seat frame 20 side and the guide plate 12 on the base 10 side, and also supports each support plate 21. It is interposed between the plate 12 and the plate 12 to support them. Therefore, the support plate 21 of each roller 22 and the guide plate 1
The positional relationship with respect to 2 is as shown in FIGS. 11 and 13. As shown in FIGS. 8 and 11, an opening 23 for fitting the swing stopper 30 provided on the foot pedal 31 is provided at the center of each support plate 21.

The swing stopper 30 regulates the relative rotation of the seat frame 20 with respect to the base 10, and is shown in FIGS.
As shown in FIG. 5, it is provided integrally with the foot pedal 31.

Further, in the present embodiment, as shown in FIGS. 6, 7 and 11, a plurality of control cables 50 (three in the present embodiment, three seats for a seat for three people) are used. Is connected to the foot pedal 31 described above. Each control cable 50 is for returning the backrest of each seat to its original position, and the other end is connected to a damper member (not shown) of each seat. Each of these control cables 50 is connected to the support portion 1 of the base 10 in the middle thereof.
1 is connected to the beam member 16 for providing. The beam member 16 is fixed to the base 10 side at a position separated from the center of the base 10 by a predetermined distance, so that the connecting portion of each control cable 50 to the beam member 16 is connected to the base 10. It is assumed to be separated from the support portion 11 by a predetermined distance.

In the above-mentioned embodiment, the case where the seat for three persons is adopted as the seat has been described .
Alternatively, it can be applied to a seat for four people or the like.

In the above embodiment, the seat frame 20 is closely attached to the base 10 by bringing the guide plate 12 on the base 10 side into contact with the roller 22 on the seat frame 20 side. Although shown, the present invention is not limited to this. For example, the guide plate 12 and the roller 22 described above
The relationship may be reversed, or a fitting stopper that fits in a part of the seat frame 20 and rotates only in a fixed direction may be provided on the base 10 side. In addition, in the above-described embodiment, the swing stopper 30 that is vertically moved by the foot pedal 31 is fitted into the opening 23 formed in the support plate 21 that forms the seat frame 10, so that the base 1
Although the example in which the rotation of the seat frame 20 and the seat frame 20 is stopped has been described, this rotation is stopped by, for example, the foot pedal 31.
It may be carried out by a stopper fitted in a stop hole formed on the seat frame 20 side by being moved up and down.

FIG. 14 and FIG. 15 show another embodiment of the present invention. The difference from this embodiment is that the base 10 is constructed without the guide plate 12. . The guide plate 12 in the above-mentioned embodiment is
Originally, it is for engaging the swing stopper 30 on the base 10 side.
As shown in, is supported on the base 10 side so as to be vertically movable,
When the rod 33 whose end is engaged with the seat frame 20 side is adopted, it becomes unnecessary as shown in FIG. That is, in this embodiment, the rod 3
3 is provided so as to be movable up and down with respect to the base 10, and its tip engages with a predetermined position on the seat frame 20 side. The rod 33 is moved up and down by the foot pedal 31, and when the user depresses the foot pedal 31, the rod 33 is disengaged from the seat frame 20 side, and the seat frame 20 is moved relative to the base 10. It becomes possible to rotate.

[0035]

As described above, according to the present invention,
In "and rotatably supported with respect to the one seat frame 20 that make up a plurality of seat seat base 10, a seat which is to be able to change its seating direction, the upper portion of the base 10 inside Is configured as a quadrilateral frame having a substantially space, and a portion of the one-side seat frame 20 that abuts on the base 10 has a quadrangular frame shape having the same width as the base 10 and an inner space being a space. And the seat frame 20 or the base 10
At least one of the surfaces of the
Fixing the sliding member 15 or 25 configured as
The sliding frame 15 or 25 and the seat frame 20 and the base.
Sliding members 25 or 15 for sliding contact with the base 10 are fixed to each other so as to make sliding contact with the base 10 .
One vertical rotation shaft 40 is provided at the center of each of the base 10 and the seat frame 20 so that the seat frame 20 can be freely rotated with respect to the base 10. " Not only does it have a sufficient function as a seat that can change direction, but it can also reliably support the seat frame with an extremely simple structure, and its weight is much lighter than the conventional case. more than one person side for hanging direction variable seat 10 that can of be
0 can be provided.

[0036] That is, according to the plurality of persons hanging for Direction variable seat 100 engages Ru in the present invention, on the quadrilateral frame-like base 10 of the inner is most space, the inner the same width as this most space placing a frame-like seat frame 20 of a quadrilateral as a, and among these
Through a sliding member 15 or 25 formed in the shape of a quadrangle
Since the seat frame 20 is provided, the seat frame 20 can be reliably supported on the base 10, and the weight as a whole can be greatly reduced. Therefore, this
According to several people-hook Direction variable seat 100, of course, than it is possible to reliably conserve energy resources of the fuel and electricity and the like that can be made to speed of the train or the like mounted thereto to facilitate .

[0037] Moreover, according to several people-hook Direction variable seat 100 engages Ru in the present invention, also the base 1 0 or slide member 15
It is because I constitute 25 and seat frame 2 0 as a quadrilateral frame shape, the unbalanced load consuming and becomes less, thus greatly reducing the wear and breakage ratio of the components constituting these It is possible.

[Brief description of the drawings]

FIG. 1 is a front view of the engagement are multiple people hanging for the Direction variable seat to the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a front view of a base.

FIG. 4 is a plan view of the same.

FIG. 5 is a side view of the same.

FIG. 6 is a partial front view showing a state in which a foot pedal and the like are attached to the base.

FIG. 7 is a plan view of the same.

FIG. 8 is an enlarged cross-sectional view of the seat frame as seen from the roller mounting portion side.

FIG. 9 is a plan view of FIG.

FIG. 10 is a partially enlarged cross-sectional view of a vertical rotation axis.

FIG. 11 is a partial enlarged cross-sectional view showing a state where a seat frame is placed on a base.

FIG. 12 is a left side view of FIG. 11 with a part cut away.

13 is a partial plan view of FIG. 11. FIG.

FIG. 14 shows another embodiment of the present invention and is a front view showing a schematic configuration thereof.

FIG. 15 shows another embodiment of the present invention and is a plan view of a base used in this case.

FIG. 16 is a front view schematically showing a conventional variable direction seat.

FIG. 17 is a plan view of the same.

[Explanation of symbols]

100 multiple people-hook Direction variable seat 10 base plate 11 supporting portion 12 the guide plate 13 the pedal supporting portion 14 stopper 15 sliding member 16 the beam member 20 the seat frame 21 supporting plate 22 rollers 23 opening 24 stop 25 slide members 30 swing stopper 31 Foot pedal 40 Vertical rotation axis 50 Control cable

Claims (1)

(57) [Claims] 1. A plurality of the one that make up the seat seat seat frame pivotally supported relative to the base, in seats to be able to change its seating direction, the base of the upper Is configured as a quadrilateral frame having an almost inner space, while a portion of the seat frame abutting the base is a quadrilateral frame having the same width as the base and having a substantially inner space. At least one of the surfaces of these seat frames or bases that come into contact with each other ,
Secure the sliding member configured as a quadrilateral frame,
Sliding contact between the seat frame and the base is performed via this sliding member.
As Nau, provided one of the vertical rotation axis in the center of each of said base and the seat frame, characterized in that the rotatable seat frame relative to said base a plurality people hanging for the direction variable seat.