JP2641837B2 - Variable direction seat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat and, more particularly, to a seat frame in which the direction of a seat frame can be changed with respect to a base fixed to a floor or the like, and a seat cushion is simply placed on the seat frame. The present invention relates to a variable direction seat that can be used.

[0002]

2. Description of the Related Art In vehicles such as trains and buses that are used by an unspecified number of people, in order to make effective use of the internal space, seats that allow a plurality of people to sit are used. In addition, such seats are arranged closely spaced from one another. The seats used in such vehicles are configured as variable direction seats that can freely change the direction in order to match the traveling direction of the vehicle or to face each other. ing.

A conventional variable-direction seat of this type is such that, as seen in Japanese Utility Model Publication No. 58-1258, for example, the seat side portion is firmly supported on a base fixed to a floor or the like. It is necessary to make it possible to rotate this seat side at any time, and for example, it is necessary to set the number of seats at the center of the seat frame support frame of the rotating chair, avoiding equal positions on the same circumference. A shaft composed of individual rollers and a bearing composed of an inner peripheral edge of an annular rotating seat provided on a footrest are fitted with a slight gap therebetween, and a tongue support frame seated on the inner peripheral edge of the bearing forming the bearing. Is turned to provide a convex portion where all the rollers come into contact at the same time when stopped at the use position. " That is, in order to make the seat-side portion (seat cushion support frame) rotatable with respect to the base, "rollers" and portions for receiving the "rollers" were required. The overall construction had to be made very complex and heavy.

[0004] In general, in a vehicle used by an unspecified number of people, if the seat used for the vehicle has a complicated structure, failure or damage is liable to occur. In some cases, not only does the cost of fuel and electric power consumption of the vehicle increase, but also it becomes difficult to cope with the increase in speed.

[0005] Therefore, the applicant has, until now,
Various types of variable direction seats that have a simple structure and can rotatably support the seat side with respect to the base have been proposed to improve the durability and reduce the weight.

[0006]

SUMMARY OF THE INVENTION The present invention has been made on the basis of the above-mentioned background, and the problem to be solved is to further reduce the weight of this type of variable direction seat and to embody the same.

The object of the present invention is not only to have a sufficient and reliable function, but also to reduce the weight as a whole, and to easily attach and detach the seat cushion to and from the seat frame. It is an object of the present invention to provide a variable-direction seat that can be operated.

[0008]

Means for Solving the Problems To solve the above problems, the means adopted by the present invention will be described with reference to the reference numerals corresponding to the embodiments. To support the seat frame 10,
A variable direction seat 100 rotatably supported on a base 20 fixed to a floor or the like, wherein the base 20 is a quadrangular frame-shaped beam member 21 located on the upper surface.
And a leg 24 supporting the terminal frame 1, and the seat frame 10 is provided with a pair of terminal frames 1 positioned at both ends.
4 and a pair of front and rear beam members 11 longer and longer than the length of the base 30.
And a support beam 12 for supporting the
Beam members 15 fixed on both sides of the beam member 21 on the base 20 side in parallel with the beam member 11, and a beam member having a substantially U-shaped cross section and located on the front side at each end thereof. The seat cushion 30 includes a predetermined cushion material and a trim cover 31 that covers the cushion material, and a seat cover 30 is provided at a front portion of the trim cover 31. Front hanging part 3
2 is integrally formed and a hook-and-loop fastener 33 is fixed to the back surface, and a hook-and-loop fastener 33 for fixing the front hanging portion 32 on the seat cushion 30 side is attached to the lower surface side of the receiving member 13 of the seat frame 10. The variable direction seat 1 characterized in that the surface fastener 33 on the front hanging portion 32 side is fixed to the surface fastener 33.
00 ”.

That is, the variable direction seat 10 according to the present invention.
In FIG. 0, first, the base 20 is constituted by a beam member 21 which is positioned on the upper surface and has a quadrangular frame shape, and a leg portion 24 supporting the beam member 21. The frame is shaped like a frame, and the overall weight is reduced.

Further, in the variable direction seat 100 according to the present invention, a pair of front and rear beam members 11 constituting the seat frame 10 are connected by terminal frames 14 arranged at both right and left ends, so that the basic structure thereof is improved. The structural configuration is a quadrilateral frame-shaped body, thereby further reducing the overall weight. Moreover, the seat frame 10 is configured to support the plurality of seat backs 40 so as to be reclined by the support beam 12 fixed between the beam members 11 and the like, and has a substantially U-shaped cross section with respect to the front beam member 11. A plurality of seat cushions 3 are secured by fixing
The configuration is such that the arrangement position of 0 is secured.

Further, in the variable direction seat 100, the pair of front and rear beam members 11 constituting the seat frame 10 are longer than the length of the base 30,
Thereby, the shape of the base 30 is reduced, and the overall weight is reduced. In addition, in the variable direction seat 100, the beam member 21 on the base 20 side is fixed between the beam members 11 in parallel with the support beam 12.
And the beam members 15 located on both side edges of the seat frame 10.
Even if it is smaller, the seat frame 10 is reliably supported in normal times (other than during rotation).

In the direction-changeable seat 100, a hook-and-loop fastener 33 for fixing the front hanging portion 32 on the seat cushion 30 side is attached to the lower surface of the receiving member 13, and the front hanging portion 32 is attached to the hook-and-loop fastener 33. The side hook-and-loop fastener 33 is configured to be fixed, so that the attachment / detachment of the seat cushion 30 to / from the seat frame 10 can be easily performed.

[0013]

The directional variable seat 10 constructed as described above.
0 has the following operation.

First, as the seat frame 10 of this variable direction seat 100, a pair of front and rear beam members 11 are fixed by terminal frames 14 located at both left and right ends, and the basic configuration thereof is a quadrangular frame-like body. The thing is adopted. Accordingly, the seat frame 10 not only promotes the weight reduction of the variable direction seat 100 as a whole, but also provides a sufficient support for the seat cushion 30 and the seat back 40 by using the support beam 12 and the like. It is configured as having high rigidity. In addition, in the variable direction seat 100 according to the present invention, the base 20 is also provided with a beam member 21 having a quadrangular frame shape located on the upper surface and a leg 24 supporting the beam member 21.
With this configuration, the basic configuration employs a quadrangular frame-shaped body, and the weight of the entire directional variable seat 100 can be reduced.

In the seat frame 10 employed in the variable direction seat 100, the width between the pair of front and rear beam members 11 longer than the length of the base 30 is the same as the width of the base 20. In addition, since the seat frame 10 is configured to contact the upper surface of the base 20 with the beam members 11 and the beam members 15 located on both sides of the beam member 21 on the base 20 side, the seat The weight of the user or the like on the side of the frame 10 depends on each beam member 1.
That is, it is uniformly hung on the base 20 side via the 1 and the beam member 15. That is, when the user is normally sitting on each seat cushion 30 of the seat frame 10, the load of the user and the seat frame 10 is applied to the base 20 in a distributed state.

In the seat frame 10, sliding members 22 corresponding to the sliding members 16 are fixed to the upper surface side of the base 20, and the sliding members 16 and the sliding members 2 are fixed.
2, the seat frame 10 is placed on the base 20. When the seat frame 10 is rotated about the vertical rotation axis 18, the seat frame 10 Pivot smoothly. At this time, since each sliding member 16 on the seat frame 10 side and each sliding member 22 on the base 20 side form a rectangular frame with the vertical rotation shaft 18 as a center, each sliding member 16 Each contact point between the member 16 and the sliding member 22 is always located at a point symmetrical position about the vertical rotation axis 18, and regardless of the position of the seat frame 10, the seat frame 10 Is always placed in a stable state.

Further, in the seat frame 10, the beam member 11 located on the front side has a substantially U-shaped cross section.
By fixing the U-shaped receiving member 13 at each end thereof, the front end of the receiving member 13 projects forward of the seat frame 10. Thus, even if the distance between the pair of beam members 11 is shortened, the seat frame 10 has a sufficient space in the front-rear direction for disposing the seat cushions 30. Moreover,
Since the receiving member 13 itself can be formed by, for example, bending a single plate, its weight does not increase so much.
Therefore, the weight of the entire variable direction seat 100 can be reduced.

Since the receiving member 13 has a front end projecting forward from the seat frame 10, the hook-and-loop fastener 33 attached to the lower surface also projects forward. Accordingly, the work of attaching and detaching the surface fastener 33 on the front hanging portion 32 side to the surface fastener 33 on the receiving member 13 side is facilitated as follows.

That is, in the variable direction seat 100, a hook-and-loop fastener 33 for fixing the front hanging portion 32 on the seat cushion 30 side is attached to the lower surface of the receiving member 13, and the front fastener 33 is attached to the hook-and-loop fastener 33. When the front hanging portion 32 is brought to the lower surface of the receiving member 13, the surface fastener 33 on the side of the front hanging portion 32 is attached to the lower surface of the receiving member 13. Can be easily attached as it is. Thereby, this direction variable seat 1
In the case of 00, each seat cushion 30 can be easily attached to the seat frame 10. When the seat cushion 30 is removed, the front end of the receiving member 13 projects forward of the seat frame 10. By peeling off, the work of removing the seat cushion 30 from the seat frame 10 can be easily performed.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, with reference to the drawings, a variable direction seat 100 according to the present invention will be described in detail. 1 and 2 show:
A front view and a side view of a variable direction seat 100 according to the present invention configured by employing a seat frame 10 are shown. The variable direction seat 100 is configured by rotatably supporting a seat frame 10 provided with a plurality of seat cushions 30 and a seat back 40 on a base 20 fixed to a floor of a vehicle or the like. The seat frame 10 and the base 20 are vertically rotated shafts 1 interposed therebetween.
8 are connected as shown in FIG.

Before describing the seat frame 10 constituting the variable direction seat 100 according to the present invention, a base 20 for rotatably supporting the seat frame 10 will be described. The base 20 is fixed to the floor of a vehicle or the like. As shown in FIGS. 3 to 6, the beam member 21 located on the upper surface thereof is configured as a quadrangular frame, and Are formed. A sliding member 22 made of a synthetic resin material or the like is provided on the upper surface of the base 20 at a portion where the seat frame 10 described below contacts, as shown in FIG. It is fixed as a shape.

In this embodiment, the base 20
As shown in FIGS. 3 and 4, a support portion 25 for the vertical rotation shaft 18 that couples the seat frame 10 to the seat frame 10 is provided at the center of the base 20. Further, in order to stably fix the seat frame 10 to the base 20 in a normal state as shown in FIGS. As shown, a fixing member 26 is provided. In order to stop the seat frame 10 at a predetermined position with respect to the base 20, a stopper 24 is provided on a part of the base 20, and the stopper 24 can be operated by a foot pedal 23. It is. The stopper 24 may be a roller that fits into a predetermined position on the seat frame 10 side, or may be a rod that fits into a hole on the seat frame 10 side. Of course. In other words, the seat frame 10 is
Any stopper may be used as long as it can be freely engaged with the seat frame 10 by operating the foot pedal 23.

The seat frame 10 rotatably mounted and connected on the base 20 as described above is, as a typical example, a pair of terminal frames located at both ends as shown in FIGS. 14, a pair of front and rear beam members 11, which are fixed between the terminal frames 14 and are longer than the length of the base 30, and which are fixed between these beam members 11 in the front and rear direction to support the seat back 40 and the like. Supporting beam 1
2, a receiving member 13 fixed at each end to the beam member 11 located on the front side, and fixed between the beam members 11 in parallel with the support beam 12 on both sides of the beam member 21 on the base 20 side. And a beam member 15 located there.

The seat frame 10 has a quadrangular frame shape having the same width as the base 20 and a little longer than the base 20.
As shown in FIG. 6, a sliding member 16 which is in sliding contact with a sliding member 22 provided on the base 20 side is fixed to the lower surface of the base member 20 as shown in FIG. Therefore, this seat frame 10 is
When the seat frame 10 is rotated with respect to 0, the seat frame 10 is smoothly rotated with respect to the base 20 by the sliding members 16 provided on the lower surface thereof without any abnormalities such as generation of abnormal noise.

In this embodiment, each beam member 11 has sufficient rigidity, can be reduced in weight, is easy to manufacture, and can easily attach other members thereto. Since various conditions, such as being able to be achieved, can be satisfied, a metal pipe material was used. The terminal frame 14 for connecting the two beam members 11 in parallel to each other is as shown in FIG. 2. The end portions of the beam members 11 are arranged before and after the lower ends of the terminal frames 14. Each is fixed.

As shown in FIGS. 7 and 9, each support beam 12 has its front end fixed to the back side of the front beam member 11 and its rear end fixed to the upper surface of the rear beam member 11, for example. As a result, the seat back 40 is integrated with each of the beam members 11, and the rear end of the beam member 11 is protruded upward in a state of, for example, conforming to the shape of the rear portion of the terminal frame 14, thereby connecting and supporting the seat back 40. Part. In this embodiment, each terminal frame 1 is used in order to provide a three-seat, variable-direction seat 100.
Two support beams 12 are employed so as to divide the space between the four support beams into three.

Further, another beam member 15 parallel to the support beam 12 is fixed between the beam members 11, and each of the beam members 15 has a support portion for supporting the vertical rotation shaft 18 and the base 20 side. The support plate 17 corresponding to the fixing member 26 is provided. As shown in FIGS. 7 and 9, mounting pieces 19 protruding rearward are mounted on the back side of the beam member 11 located on the front side. A driving device such as a hydraulic cylinder for driving is connected.

A receiving member 13 having a substantially U-shaped cross section is fixed to both ends of a front side of the beam member 11 located forward. In this embodiment, the receiving member 13 is formed by bending a single metal plate into a substantially U-shape.
As shown in FIG. 7, it is formed to extend continuously in the longitudinal direction of the seat frame 10 so as to be located in front of the front seat cushion 30. In this embodiment, the fixing of the receiving member 13 to the beam member 11 is as follows.
As shown in FIGS. 8 to 11, both ends are screwed to the beam member 11, but these may be fixed by other means such as welding. is there.

In the direction-changeable seat 100, as shown in FIG. 8 and FIG.
Beam member 1 located on the upper surface of rear side receiving member 13 and rear side
The mounting plate 34 is fixed to the upper surface of the mounting plate 1 with screws.
The mounting plate 34 is for mounting and fixing the seat cushion 30 thereon. In the present embodiment, the mounting plate 34 is formed of a flexible metal plate, but a metal or synthetic resin rope is used. It may be used or implemented using a tough cloth or the like.

Further, in the variable direction seat 100, in order to fix the seat cushion 30 mounted on each mounting plate 34, for example, as shown in FIG. Is stuck. Of course,
The hook-and-loop fastener 33 is also fixed to a required portion on the upper surface of each mounting plate 34.

The seat frame 10 constructed as described above
Each seat cushion 30 placed and fixed with respect to is configured, for example, as shown in FIG. The seat cushion 30 shown in FIG. 12 is configured by covering a predetermined cushion material with a trim cover 31. In the seat cushion 30 of this embodiment, a front hanging portion is provided at a front portion of the trim cover 31. 32 are integrally formed. The seat cushion 30 is placed and fixed on the seat frame 10 by fixing the surface fasteners 33 fixed to the back surfaces of the trim cover 31 and the front hanging portion 32 to the surface fasteners 33 on the seat frame 10 side. The seat is constituted by the seat back 40 corresponding to the cushion 30, and the direction variable seat 100 is formed as a whole.

In this embodiment, when the receiving member 13 is attached to the beam member 11 located on the front side, the tip of the receiving member 13 is slightly obliquely upward as shown in FIGS. It was performed as follows. The reason for this is that if the front end of each seat cushion 30 is located slightly above, the seat cushion 30 is relatively stable when sitting on it. It is necessary to raise. In this case, the receiving member 13
This angle adjustment can be performed completely freely by adopting a round pipe as the beam member 11 in the present embodiment.

[0033]

As described in detail above, in the present invention,
As exemplified in the above-described embodiment, “a variable-direction seat configured by rotatably supporting a seat frame 10 supporting a plurality of seat cushions 30 and a seat back 40 with respect to a base 20 fixed to a floor or the like. 100, base 2
0 is constituted by a beam member 21 positioned on the upper surface and having a quadrangular frame shape, and a leg portion 24 supporting the beam member 21. The seat frame 10 is separated from each other by a pair of terminal frames 14 located at both ends. Base 30 fixed in parallel
A pair of front and rear beam members 11 longer than the length of the beam member, a support beam 12 fixed between these beam members 11 in the front and rear direction to support the seat back 40, and a beam member 11 parallel to these support beams 12. Beam member 1 fixed between and located on both sides of beam member 21 on base 20 side
5 and a receiving member 13 which has a substantially U-shaped cross section and is fixed at each end to the beam member 11 located on the front side.
A predetermined cushion material and a trim cover 3 covering the cushion material
1, a front hanging portion 32 is integrally formed at a front portion of the trim cover 31, and a hook-and-loop fastener 33 is fixed to the back surface thereof. A hook-and-loop fastener 33 for fixing the front hanging portion 32 on the side is attached, and the hook-and-loop fastener 33 on the front hanging portion 32 side is fixed to the hook-and-loop fastener 33 ". As a result, the variable-direction seat 10 not only has a sufficient and reliable function, but also can be reduced in weight as a whole, and can be easily attached to and detached from the seat frame.
0 can be provided.

That is, the variable direction seat 1 according to the present invention.
According to No. 00, the basic configuration of the seat frame 10 and the base 30 is a quadrangular frame shape, and the base 30 is configured to be smaller than the seat frame 10. Since the member can be made of a hollow material, it is possible to sufficiently achieve the simplification and weight reduction of the entire structure of the variable direction seat 100, and the beam member 11 is used as a portion for mounting and fixing the seat cushion 30. The seat frame 10 is secured by the receiving member 13 and the beam member 15 having a substantially U-shaped cross section attached to the beam member 11 located in front.
Not only can the overall weight be reduced, but even if the space between the two beam members 11 is narrow, the receiving member 13 can easily secure an arrangement location for the seat cushion 30, and a sufficient When the front hanging portion 32 is brought to the lower surface of the receiving member 13, the surface fastener 33 on the side of the front hanging portion 32 can be easily and simply attached to the surface fastener 33 located on the lower surface of the receiving member 13. Because it can be attached, this direction-changeable seat 100
In, the attachment and detachment of each seat cushion 30 to and from the seat frame 10 can be easily performed. It has such an excellent effect.

[Brief description of the drawings]

FIG. 1 is a front view of a variable direction seat according 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 a base.

FIG. 5 is a side view of the base.

FIG. 6 is a partially broken enlarged side view showing a seat frame placed on a base.

FIG. 7 is a plan view of a seat frame placed on a base.

FIG. 8 is an enlarged cross-sectional view of the seat frame taken along line II of FIG. 7;

FIG. 9 is an enlarged cross-sectional view of the seat frame taken along line II-II in FIG.

FIG. 10 is an enlarged cross-sectional view of the seat frame taken along line III-III in FIG. 7;

FIG. 11 is an enlarged cross-sectional view of the seat frame taken along line IV-IV in FIG. 7;

FIG. 12 is a perspective view of the seat cushion as viewed from below.

DESCRIPTION OF SYMBOLS 100 Direction variable seat 10 Seat frame 11 Beam member 12 Support beam 13 Receiving member 14 Terminal frame 15 Beam member 16 Sliding member 17 Support plate 18 Vertical rotation axis 20 Base 21 Beam member 22 Sliding member 30 Seat cushion 31 Trim cover 32 Front hanging part 33 Surface fastener 34 Mounting plate 40 Seat back

Claims (1)

(57) [Claims] 1. A direction-variable seat configured to rotatably support a seat frame supporting a plurality of seat cushions and a seat back with respect to a base fixed to a floor or the like. A beam member positioned on the upper surface and having a quadrangular frame shape, and a leg supporting the beam member, wherein the seat frame is fixed in parallel to each other by a pair of terminal frames located at both ends. A pair of front and rear beam members longer than the length of the base, a support beam fixed between the beam members in the front-rear direction, and supporting the seat back, and between the beam members in parallel with the support beams. A beam member fixed and positioned on both sides of the beam member on the base side, and a receiving member having a substantially U-shaped cross section and fixed at each end to the beam member positioned on the front side. The seat cushion is constituted by a predetermined cushion material and a trim cover covering the same, a front hanging portion is integrally formed at a front portion of the trim cover, and a hook-and-loop fastener is provided on a back surface thereof. A surface fastener for fixing the front hanging portion on the seat cushion side is attached to the lower surface side of the receiving member of the seat frame, and the surface fastener on the front hanging portion is fixed to the surface fastener. A variable direction seat characterized by being configured.