JP2003339473A - Housing chair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To house a chair in a storage place having a small depth while increasing a thickness of a back part or seat part for ensuring sufficiently satisfactory comfortableness of sitting. <P>SOLUTION: This housing chair comprises two vertically extending guide rails 1; the back part 2 arranged between the two guide rails and having both side parts elevatably supported by the guide rails along the guide rails; the seat part 3 arranged between the two guide rails and having both side parts supported by the guide rails to be rotatably around horizontal axes, respectively; and a link member 4 for connecting the back part to the seat part to interlock the rotation between a substantially vertical storage position and a substantially horizontal use position of the seat with the elevation of the back part. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is installed in a vehicle such as a train or a bus, a platform of a station, a lobby of a movie theater, a waiting room, an elevator, etc., and stores it in a wall or the like to expand a passage when crowded. The chair, in particular, has a back and a seat,
The present invention relates to a storage chair that can store the back portion and the seat portion in a space that extends in the vertical direction and has a relatively small depth.

[0002]

2. Description of the Related Art In a conventional storage chair having a back portion and a seat portion, the back portion is usually fixed substantially vertically, and the seat portion has a rear end below the back portion. The seat is supported so that it can be flipped up about a fulcrum, and when used, the seat descends substantially horizontally and stops, and when it is stored, the seat jumps up to stand substantially vertically and overlaps the back and front and back.

However, in such a conventional storage chair, since the seat portion overlaps the back portion and the front portion in the front and back during storage, there is a problem that if the back portion or the seat portion is made thick, it cannot be stored in a storage place having a small depth. Therefore, in order to be able to store it in a storage place with a small depth, it is unavoidable to make the back and seat thin, but in that case, using a normal cushion material for the back and seat is good enough. It is not possible to get a comfortable sitting feeling, and even if a cloth or net material is used as a cushioning material, the sitting comfort is improved to some extent, but it is still not sufficient, and there is a problem that it lacks volume and luxury. It was

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a storage chair that advantageously solves the above problems, and the storage chair of the present invention extends in the vertical direction. Existing two guide rails, a back portion which is arranged between the two guide rails and is supported by the guide rails so that both side portions can be moved up and down along the guide rails, and the two guide rails. Seats which are disposed between the guide rails and which are rotatably supported on the guide rails on both sides thereof, and a substantially vertical storage position of the seats by connecting the back section and the seat section. And a link member that interlocks the rotation between the substantially horizontal use position and the raising and lowering of the back portion.

In such a storage chair, it is arranged between two guide rails extending in the vertical direction, and both side portions are supported by the guide rails so as to be vertically movable along the guide rails. The back portion and the seat portion, which is arranged between the two guide rails and is rotatably supported on the guide rails at both side portions, are connected by a link member. The rotation between the vertical storage position and the substantially horizontal use position and the raising and lowering of the back portion are interlocked.

Therefore, according to the storage chair of the present invention, the back portion is lowered along the two guide rails in conjunction with the rotation of the seat portion to the substantially horizontal use position, so that the seat portion is brought to the normal use height. It can be placed in a usable state, and in conjunction with rotating the seat to a substantially vertical storage position, the back is raised along the two guide rails to a height that does not interfere with the seat. Since it can be placed and stored,
When the storage chair with the back and seat is in the stored state,
The back and seat can be arranged vertically and stored between two guide rails, and even when stored in a storage place with a small depth, the back and seat can be made sufficiently thick, respectively.
Therefore, it is possible to use a normal thick cushion material for the back portion and the seat portion, so that it is possible to obtain a sufficiently good sitting comfort and to give a feeling of volume and luxury.

In the storage chair according to the present invention, the seat portion is supported by the guide rails so that both side portions are rotatable about the horizontal axis and can be moved up and down along the two guide rails. The link member may interlock the raising / lowering of the seat with the raising / lowering of the back portion, the rotation of the seat portion between a substantially vertical storage position and a substantially horizontal use position. , By doing this, the seat part not only rotates but also moves up and down in conjunction with the lifting and lowering of the back part,
It is possible to store the seat portion at a high position, and prevent the seat portion from being located near the floor and being soiled by mud splashes or the like in the stored state.

Further, in the storage chair of the present invention, the seat portions for two seats are integrally coupled to each other in the depth direction, and the central portions of both side portions of the seat portions for the two seats are respectively around the horizontal axis. It may be rotatably supported by the two guide rails. By doing so, a back-to-back storage chair for two seats can be simply configured.

Further, the storage chair according to the present invention may be provided with a driving means for rotating the seat portion between the storage position and the use position. And the storage state can be automatically switched.

Further, in the storage chair according to the present invention, the drive means may be one that raises and lowers the back portion to rotate the seat portion, and in this case, a power transmission member that raises and lowers the back portion. Can be easily arranged along with the guide rail, so that the driving means can be made to have a good appearance without taking a large space around the chair.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will now be described in detail with reference to the drawings by way of examples. 1 (a) and 1 (b) are a front view and a side view showing an embodiment of a storage chair of the present invention in use, and FIG.
3 (a) and 3 (b) are a front view and a side view showing the storage chair of the embodiment in a stored state, and FIG.
(B) And (c) is operation | movement explanatory drawing which shows the storage chair of the Example in a use state, an intermediate state, and a storage state, respectively, in the figure, the code | symbol 1 is a guide rail, 2 is a back part, 3 is a seat part. Reference numeral 4 is a first link member, 5 is a second link member, 6 is a ball screw type drive mechanism as drive means, 7 is a floor, and 8 is a ceiling.

That is, in the storage chair of this embodiment, two seats arranged side by side are interlocked, and the upper end portion is fixed to the ceiling 8 and the lower end portion is fixed to the floor 7 and extends vertically. The guide rails 1 of the book, and the guides that are arranged between the guide rails 1 and that can move up and down along the guide rails 1 via rollers that fit the guide rails 1 at the upper and lower ends of both sides. The two back portions 2 supported by the rails 1 and the rear ends of both side portions which are respectively arranged between the guide rails 1 and can be pivoted about a horizontal axis via rollers fitted into the guide rails 1, respectively. And two seats 3 supported on the guide rails 1 so as to be able to move up and down along the guide rails 1.

In the storage chair of this embodiment, the upper end is rotatably connected to the lower ends of both sides of the back 2, and the lower end is the rear end of both sides of the seat 3 below the back 2. Between the back portion 2 and the seat portion 3 so as to be pivotally connected to an intermediate portion in the vicinity of the seat portion, and between the seat portion 3 in a substantially vertical storage position shown in FIG. 2 and in a substantially horizontal use position shown in FIG. 2 and the lower end of the back portion 2 above the seat portion 3 for interlocking movement between the raised position shown in FIG. 2 and the lowered position shown in FIG. Two sets of second links which are rotatably supported by three guide rails 1 and whose upper ends are connected to the front ends of both sides of the seat 3 to rotate the seat 3 as it moves up and down. In this embodiment, in addition to the back portions 2 and the seat portions 3, each first link member 4 is also provided with a cushion material. It has been, the first link member 4 also functions as a back.

Further, the storage chair of this embodiment is provided with a ball screw type drive mechanism 6 arranged from the inside of the guide rail 1 to the vicinity of the upper end portion of the guide rail 1, and the ball screw type drive mechanism 6 has a motor 6a. The output rotation of the ball is transmitted to the drive shaft 6c via the speed reducer 6b, and the two ball screws 6d are disposed in the guide rails 1 on both sides to rotatably support the ball screws 6d. Two ball nuts 6f, which are drivingly coupled to both ends of the drive shaft 6c through a gear set 6e and screwed into the intermediate portions of the ball screws 6d, respectively, are passed through the lower ends of the two back portions 2 to be supported. It is configured to be fixed to both ends of the shaft 6g.

According to the ball screw drive mechanism 6, the motor 6a rotates the two ball screws 6d in the predetermined direction via the speed reducer 6b, the drive shaft 6c and the bevel gear set 6e, and the ball screws 6d are screwed. By lowering the two ball nuts 6f, which are combined together, and lowering the support shaft 6g, the two back portions 2 are lowered in cooperation with their own weights, and the rear portions of the two seat portions 3 and their back portions are also lowered. The two first link members 4 connecting the seat 2 and the seat 3 can be lowered in cooperation with their own weights, and the motor 6a drives the speed reducer 6b, the drive shaft 6c, and the bevel gear set 6e. Two ball nuts 6f that are rotated through the two ball screws 6d in the opposite direction to be screwed into the ball screws 6d.
Are lifted to lift both ends of the support shaft 6g to lift the two back portions 2 and the rear portions of the two seat portions 3 and the two first back portions that connect the back portions 2 and the seat portions 3 together. The link member 4 can be raised.

In the storage chair of this embodiment, for each seat, there are two guide rails 1 extending vertically.
Between the two guide rails 1 and the back portion 2 which is disposed between the two guide rails 1 and is supported by the guide rails 1 so that both side portions can be vertically moved along the guide rails 1. The seat 3 supported by the guide rails 1 so as to be rotatable respectively is connected by a first link member 4, and the seat 3 is between a substantially vertical storage position and a substantially horizontal use position. And the elevation of the back 2 are interlocked. In this embodiment, the second link member 5 pivotally attached to the recessed portions on both side portions of the seat portion 3 is used as a substantially horizontal use position of the seat portion 3 in the downward inclination of the front end of the projecting portion on both side portions of the seat portion 3. Although it is determined by abutting on the surface, a stopper may be provided separately to determine.

Therefore, according to the storage chair of this embodiment,
As shown in FIG. 3 (a), the back portion 2 is lowered along the guide rails 1 on both sides of the seat portion 3 in conjunction with the rotation of the seat portion 3 to a substantially horizontal use position so that the back portion 2 is positioned at a normal use height. 3C, the back portion 2 is moved along the guide rails 1 on both sides of the back portion 2 in conjunction with the rotation of the seat portion 3 to a substantially vertical storage position, as shown in FIG. 3C. Since it can be lifted up and positioned at a height that does not interfere with the seat portion 3 to be in the stored state, when the storage chair including the back portion 2 and the seat portion 3 is placed in the stored state, the back portion 2 and the seat portion 3 can be housed vertically and housed between the guide rails 1 on both sides, and even when housed in a housing space with a small depth, the back part 2 and the seat part 3
The thickness of each of the and can be made sufficiently thick, and therefore, a normal thick cushioning material can be used for the back portion 2 and the seat portion 3, so that a sufficiently good sitting comfort can be obtained, and a volume feeling and luxuriousness can be obtained. You can have it.

Further, according to the storage chair of this embodiment, the seat portion 3 is supported on the guide rails 1 so that both side portions can be respectively rotated about the horizontal axis and can be moved up and down along the guide rails 1. Since the first link member 4 interlocks the lifting and lowering of the back part 2, the rotation of the seat part 3 between the substantially vertical storage position and the substantially horizontal use position, and the lifting and lowering of the seat part 3. Since the seat portion 3 is not only rotated but also moved up and down in conjunction with the raising and lowering of the back portion 2, the seat portion 3 can be stored at a high position apart from the floor 7, and in the stored state, the seat portion 3 is near the floor 7. It is possible to prevent it from being soiled by mud splashes etc.

Further, according to the storage chair of this embodiment, since the seat portion 3 for two seats is provided with the ball screw type drive mechanism 6 for rotating between the storage position and the use position, storage for two seats is possible. The chair can be automatically switched between the use state and the storage state.

According to the storage chair of this embodiment, the ball screw drive mechanism 6 moves the back portion 2 up and down with the ball screw 6d as a power transmission member passed through the guide rail 1 and the ball nut 6f screwed into the ball screw 6d. Since the seat portion 3 is rotated by rotating the seat portion 3, it is possible to make the chair driving means look good without occupying a large space around the chair.

FIGS. 4 (a) and 4 (b) show an installation example in which the storage chair of the above embodiment is installed in a train as an example of a vehicle, and the storage chair is in use and in storage. Vertical cross-sectional view of the car body shown,
5 (a) and 5 (b) are horizontal cross-sectional views of the vehicle body of the train showing the above-mentioned installation example when the storage chair is in use and in storage. In this installation example, the guide rail 1 is fixed to the central portion of the width of the car body 9 of the train slightly offset from the center line toward one wall portion, and the seat portion faces the wall portion farther from the guide rail 1. 3 is supposed to open. In addition, here, a normal storage chair 10 is also provided on both wall portions. According to such an installation example, when passengers are crowded, the normal storage chair 10 is put in the storage state as shown in FIGS. 4 (a) and 5 (a), and the storage chair of the above-described embodiment is set to the depth of the guide rail 1. 4 (b) and FIG. 5 when the number of passengers is small, as well as being able to accommodate a large number of passengers by accommodating it in a small space.
As shown in (b), it is possible to allow many passengers to sit on the seats by using all the storage chairs in the used state.

6 (a) and 6 (b) are a front view and a side view showing another embodiment of the storage chair of the present invention in use, and FIGS. 7 (a) and 7 (b) show the same. It is a front view and a side view showing the storage chair of the example in a stored state,
The storage chair of this embodiment is provided with a chain drive mechanism 11 as a drive means in place of the ball screw drive mechanism 6 of the storage chair of the previous embodiment, and the other parts are configured in the same manner as in the previous embodiment. There is.

The chain-type drive mechanism 11 includes a motor 1
The output rotation of 1a is transmitted to the two sprockets 11c via the speed reducer 11b, and one end is coupled to a tension spring mechanism 11d in which a leaf spring is elastically wound around a spool so as to be drawn out.
The middle part of the chain is wound around the other end of each of the two sprockets 11c, the chains 11e are passed through the guide rails 1 on both sides, and the other ends (lower ends) of the chains 11e are The support shaft 11f is connected to both ends of the support shaft 11f penetrating the lower end of the back portion 2.

According to this chain-type drive mechanism 11, the two sprockets 11c are rotated by the motor 11a in the clockwise direction in FIG.
While pulling out the 1d leaf spring from the spool while resisting its elastic pulling force, the two chains 11e are lowered,
By allowing the support shaft 11f to descend, the two back portions 2
While lowering it by its own weight, and at the rear of the two seats 3,
The two first link members 4 connecting the back portion 2 and the seat portion 3 can be lowered by their own weight, and the motor 11
The two sprockets 11c are rotated counterclockwise in FIG. 6 (a) by a, and the lower parts of the two chains 11e are operated in cooperation with the elastic pulling force of the leaf spring that tries to return to the spool of the tension spring mechanism 11d. Raise and support shaft 11
By raising both ends of f, the two back portions 2 are raised, and the rear portions of the two seat portions 3 and the two first link members 4 connecting the back portions 2 and the seat portions 3 are also raised. You can

Therefore, according to the storage chair of this embodiment,
With respect to the chair itself, in addition to the same operational effects as the above-described embodiment, the chain type drive mechanism 11 for rotating the seat portion 3 between the storage position and the use position is provided. It is possible to automatically switch between the state and the stored state.

Further, according to the storage chair of this embodiment,
Since the chain-type drive mechanism 11 moves the back portion 2 up and down and rotates the seat portion 3 by the chain 11e as a power transmission member that is passed through the guide rail 1, the drive means of the chair is disturbed. It doesn't take a big space around the chair and it looks good.

FIGS. 8 (a), 8 (b) and 8 (c) are operation explanatory views showing still another embodiment of the storage chair of the present invention in a use state, an intermediate state and a storage state, respectively.
In this embodiment, a support shaft provided at a predetermined position of the guide rail 1 rotatably supports the rear end portions of both side portions of the seat portion 3,
Further, two first link members 4 are arranged on both sides of the back portion 2 and the seat portion 3 respectively to connect the back portion 2 and the seat portion 3, and the first link member 4 is provided with a cushion material. Absent. Further, in this embodiment, the second link member 5 is not provided. The other parts are configured similarly to the first embodiment.

FIGS. 9 (a), 9 (b) and 9 (c) are operation explanatory views showing still another embodiment of the storage chair of the present invention in a used state, an intermediate state and a stored state, respectively.
In this embodiment, the seat portions 3 for two seats are integrally coupled to each other in the depth direction, and the support shaft horizontally provided at a predetermined position of the guide rail 1 serves for the seat portions 3 for two seats. A central portion of both side portions is rotatably supported, and two first link members 4 are respectively arranged on both side portions of the back portion 2 and the seat portion 3 to connect the back portion 2 and the seat portion 3 to each other. No cushion material is provided on the first link member 4. Also in this embodiment, the second link member 5 is not provided. The other parts are configured similarly to the first embodiment.

Also in these embodiments, as shown in FIGS. 8 (a) and 9 (a), the back portion 2 on both sides thereof is interlocked with the rotation of the seat portion 3 to the substantially horizontal use position. It can be lowered along the guide rail 1 to be placed in a normal use height to be in a use state, and as shown in FIGS. 8 (c) and 9 (c), the seat portion 3 is substantially vertical. Since the back portion 2 can be raised along the guide rails 1 on both sides thereof in conjunction with the rotation to the storage position and positioned at a height that does not interfere with the seat portion 3, the back portion 2 can be stored. When the storage chair including the seat portion 3 is in the storage state, the back portion 2 and the seat portion 3 can be vertically arranged and stored between the guide rails 1 on both sides, and stored in a storage place with a small depth. However, the thicknesses of the back 2 and the seat 3 can be made sufficiently thick, and therefore Luo a back 2 and the seat 3 obtained using conventional thick cushion material, can have a sense of volume and luxury it is possible to obtain a sufficiently good seating comfort.

In particular, according to the embodiment shown in FIG. 9, a back-to-back storage chair for two seats can be simply constructed. Even if two sets of storage chairs of the embodiment shown in FIGS. 1, 6 and 8 are arranged back to back with the guide rails adjacent to each other, a storage chair for two seats back to back can be configured. Further, two sets of back-to-back storage chairs may share the back part and the seat supporting roller to share the guide rail, and may also be configured to share the driving means. By doing so, when the two sets of storage chairs are in the stored state, only the seat portions overlap each other in the storage position, and the same effect as the above-described embodiment with respect to the two sets of back-to-back storage chairs with a simple structure. Can be obtained.

Although the present invention has been described above based on the illustrated example, the present invention is not limited to the above-mentioned example. For example, the number of guide rails is increased to three or more consecutive seats as compared with the above-mentioned embodiment. Alternatively, the number of guide rails may be reduced to two and a single seat may be provided. The number of guide rails is reduced to two, and each part of the seat (back, seat) is laterally connected by two or more people and arranged between two guide rails to form a connecting chair. You may. Further, although the drive means is provided in the above-described embodiment, auxiliary means such as a balance cylinder may be provided to manually move the back portion and the seat portion between the used state and the stored state. Further, the storage chair of the present invention is not limited to the above-mentioned installation example, and can be installed in a bus car, a platform of a station, a lobby of a movie theater, a waiting room, an elevator, or the like.

The ball screw type drive mechanism 6 and the chain type drive mechanism 11 described above are valid even when the back portion 2 is removed or when a pillow portion is provided instead of the back portion 2, and in these cases as well. The ball screw 6d or the chain 11e as a power transmission member that passes through the guide rail 1
Since the seat portion 3 can be rotated by moving up and down the upper end portion of the link member 4 and the pillow portion, the driving means of the seat portion 3 does not take a large space around the chair and has a good appearance. Can be one.

[Brief description of drawings]

1A and 1B are a front view and a side view showing an embodiment of a storage chair according to the present invention in use.

2A and 2B are a front view and a side view showing the storage chair of the above embodiment in a stored state.

3 (a), (b) and (c) are operation explanatory views showing the storage chair of the above embodiment in a used state, an intermediate state and a stored state, respectively.

4 (a) and 4 (b) are installation examples when the storage chair of the above-described embodiment is installed in a train as an example of a vehicle, and the storage chair is in a used state and a storage state, respectively. It is a vertical cross-sectional view of the body of the train shown.

5 (a) and 5 (b) are horizontal cross-sectional views of the body of the train showing the above-mentioned installation example when the storage chair is in use and in storage, respectively.

6 (a) and 6 (b) are a front view and a side view showing another embodiment of the storage chair of the present invention in use.

7 (a) and 7 (b) are a front view and a side view showing the storage chair of the above embodiment in a stored state.

8 (a), (b) and (c) are operation explanatory views showing still another embodiment of the storage chair of the present invention in a use state, an intermediate state and a storage state, respectively.

9 (a), (b) and (c) are operation explanatory views showing still another embodiment of the storage chair according to the present invention in a use state, an intermediate state and a storage state, respectively.

[Explanation of symbols]

1 Guide rail 2 back 3 seats 4 First link member 5 Second link member 6 Ball screw type drive mechanism 11 6a motor 6b reducer 6c drive shaft 6d ball screw 6e Bevel gear set 6f ball nut 6g support shaft 7 floors 8 ceiling 9 car body 10 normal storage chairs 11 Chain drive mechanism 11a motor 11b reducer 11c sprocket 11d Tension spring mechanism 11e chain 11f support shaft

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Mitsuyuki Osawa             1-30-27-206 Hongo, Bunkyo-ku, Tokyo (72) Inventor Hiroshi Nomoto             7-1-7-1311 Minamikasai, Edogawa-ku, Tokyo (72) Inventor Katsuhiko Suzuki             2-1-24 Tsuruma, Yamato City, Kanagawa Prefecture F term (reference) 3B087 CA16                 3B095 AA04 DA02

Claims (5)

[Claims] 1. Two guide rails extending in the up-down direction, and both guide rails arranged between the two guide rails so as to be able to move up and down along the respective guide rails. A supported back portion, a seat portion that is disposed between the two guide rails and that is supported by the guide rails so that both side portions thereof are rotatable about horizontal axes, the back portion and the seat portion, respectively. A storage chair comprising: a link member for connecting the seat to a substantially vertical storage position and a substantially horizontal use position for interlocking the vertical movement of the seat with the lifting and lowering of the back. 2. The seat portion is supported on the guide rails such that both side portions are respectively rotatable around a horizontal axis and are vertically movable along the two guide rails, and the link member is 2. The lifting / lowering of the seat, the pivoting of the seat between a substantially vertical storage position and a substantially horizontal use position, and the lifting / lowering of the seat are interlocked with each other. Storage chair. 3. The seat portions for two seats are integrally coupled to each other in the depth direction, and the central portions of both side portions of the seat portions for the two seats are respectively rotatable about a horizontal axis. The storage chair according to claim 1 or 2, wherein the storage chair is supported by a guide rail of a book. 4. The storage chair according to claim 1, further comprising drive means for rotating the seat portion between the storage position and the use position. 5. The storage chair according to claim 4, wherein the drive means moves up and down the back portion to rotate the seat portion.