JP2576938B2 - 90-degree turning device for vehicle chair - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a chair in which a backrest is in contact with a wall of a vehicle such as a railway car or a ship and is arranged in a line in one direction. Romance seat state).

[0002]

2. Description of the Related Art In a conventional railway vehicle, when the number of passengers is small, a two-seat seat called a romance seat is arranged in a side-by-side arrangement, and when the number of passengers is large, the two seats are used. Japanese Patent Application Laid-Open No. 49-37313 proposes a technique of a series arrangement in which the seats are arranged in a line so as to face the inside of the vehicle along a window as a romance seat for a vehicle.

In order to change the arrangement of the romance seat for a vehicle, the backrest of the seat is tilted forward and then the entire seat is centered on one point.
The sheet is rotated by 0 degrees, and the orientation of the sheet is changed to a parallel arrangement method or a serial arrangement method.

[0004]

However, in the above-described vehicle seat direction changing apparatus, since an extra operation of tilting the backrest forward is required, the operation is not only troublesome but also troublesome. It takes a long time to rearrange the seats depending on the degree of congestion of the vehicle, and there is a problem that the rearrangement cannot be performed suddenly.

[0005] Further, if the user does not know that the backrest is tilted forward, there is a drawback that the seat cannot be rearranged and cannot be used as a preferable romance seat type. Since the sheet is rotated as the center, a space with a turning radius farthest from the center of rotation of the sheet is required, and a gap is created between the side surface, the back surface and the wall surface of the sheet and it cannot be in close contact with the wall surface, There was also a problem that the space in the car could not be used effectively.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and an object of the present invention is to eliminate the trouble of tilting the backrest forward when the seat is turned 90 degrees, and to perform the operation of rearranging the seats. A 90-degree vehicle chair that enables simplification and shortening of time, and enables effective use of space without causing gaps between the seats when rotating the seats and creating a gap between the seats and the wall surface. We will provide a turning device.

[0007]

According to the present invention, there is provided a vehicle chair comprising:
The zero-degree turning device is intended to achieve the above-mentioned object, and the means are arranged below a frame constituting a chair of a vehicle such as a railway car or a ship, and a lower side of a backrest in the frame. A pair of first and second wheels that roll on the floor of the vehicle to support the frame, and one end of which is attached to a wall surface of the vehicle so as to extend and contract in a direction perpendicular to the wall surface. An arm whose other end is pivotally supported by the first wheel, and rotatably mounted on a floor surface at a substantially midpoint of a line connecting the two wheels in a state where the frame is parallel to a wall surface of the vehicle. And a connecting arm connecting the rotating shaft and the second wheel.

Further, a frame constituting a chair of a vehicle such as a railway vehicle or a ship, and one end thereof is rotatably attached to a floor surface of the vehicle, and the other end pivots on a left-right center line of the frame. One end is pivotally attached to a pivoted joint between the attached arm, the telescopic arm extendable with respect to the coupling arm, and the frame of the telescopic arm, and the other end is rotatable on the floor. An attached first pivot arm, and a second pivot arm, one end of which is pivotally attached to a substantially central portion of the connection arm, and the other end of which is pivotally attached to a position separated from a pivot point at which the other end of the connection arm is pivotally attached. And a turning arm.

Further, a frame constituting a chair of a vehicle such as a railway vehicle, a ship, etc., a guide groove mounted on a longitudinal wall surface of the vehicle, a slide guided by the guide groove, and A slide piece to which a first longitudinal end of the backrest of the body is rotatably mounted; and a frame having one end mounted on a wall surface of the vehicle so as to extend and contract in a direction perpendicular to the wall surface and the other end mounted on the frame. The second longitudinal direction of the backrest in the body
And an arm pivotally supported at the end.

[0010] Further, a pair of frames constituting a chair of a vehicle such as a railway vehicle or a ship, a guide groove attached to a longitudinal wall surface of the vehicle, a slide guided by the guide groove, and A slide plate to which the first longitudinal end of the backrest of each frame is rotatably mounted, and a connecting plate for rotatably connecting the second longitudinal end of the backrest of the two frames. And an arm having one end attached to a wall surface of the vehicle so as to be extendable and contractible in a direction perpendicular to the wall surface and the other end pivotally supported by the connecting plate.

[0011]

The vehicle chair 9 of the present invention constructed as described above.
The 0-degree turning device is a parallel arrangement system in which the chairs are rotated 90 degrees to face each other in the same direction by facing the romance sheet, or a series arrangement system in which the chairs are arranged in a line along the wall toward the inside of the vehicle. Can be converted to

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a first embodiment of a 90-degree turning apparatus for a vehicle chair according to the present invention will be described with reference to FIGS. In this embodiment, the seat portion A and the backrest B of the seat are attached to the frame C. As shown in FIG. 1, when the frame C is arranged in a side-by-side arrangement,
A lower extension 2 is provided at an end of the frame C on the side away from the lower wall 1 of the window of the vehicle, and the lower end thereof is rotatable on a bogie 4 on which wheels 3 are mounted on the lower surface. Installed.

The other end of one of the two arms 5, 6 pivotally connected at one end thereof to the carriage 4 is pivotally connected to the carriage 4. The end is pivotally attached to a base 8 fixed to the floor 7 along the wall surface 1.

A pivot 11 is rotatably attached to a lower end of the crosspiece 9 constituting the frame C at a tip end opposite to the lower extension 2, and a bogie 10 is attached to a lower end thereof. I have. The rotation fulcrum 11 supports one side of the frame C and can move on the floor 7.

A rotating shaft 12 attached to the floor 7 so that the center of rotation is located below the crossbar 9 when the frame C moves parallel to the wall surface 1 as shown in FIG. Rotating fulcrum 11
And the connecting arm 13, and the turning fulcrum 11 is connected to the turning shaft 1.
It moves on an arc centered at 2.

In FIG. 3, the frame C of the vehicle seat is shown.
Is changed from the state of the dashed line parallel to the wall surface 1 to the position of the solid line perpendicular to the wall surface 1, but the side of the frame C closer to the bogie 4 from the state of the dashed line is perpendicular to the wall surface 1. If it is pulled in the direction, the wheel 3 rolls and the cart 4 is pulled out in a direction perpendicular to the wall surface 1.

As a result, the locus a of the pivot point between the rotation fulcrum 11 and the frame C was at a ₁ before the carriage 4 was pulled out. of moving along a trajectory a, but those leading to a ₃ through a _2, b ₁ of the locus b of the pivot point of the downward extensions 2 and bogie 4 of the frame C along with this what it was is moved along the trajectory b, through the b ₂ reaches the b _3.

As a result, the seat A and the backrest B are a ₃ ,
Since the frame A moves to the position indicated by the two-dot chain line in FIG. 3 at b ₃ and the frame A separates from the wall 1, when this state is reached, the frame C is pushed back toward the wall 1. , A ₄ of the locus a of the pivot point between the rotation fulcrum 11 and the frame C
At the same time, the lower extension 2 of the frame C and the locus b of the pivot point b of the bogie 4 reach the point b ₄ , and the seat A and the backrest B become the positions shown by solid lines, and the seat orientation Can be changed by 90 degrees.

Further, by performing the reverse operation from this state, it is possible to return to the initial state. In this embodiment, the direction of the frame C is manually changed, but the direction of the frame C can be changed by rotating the rotation fulcrum 11 with a motor.

Next, a second embodiment will be described below with reference to FIGS. The same parts as those in the first embodiment are denoted by the same reference numerals. In this embodiment, the wall 1
The base 15 is fixed to the floor surface 7 at an angle of 45 degrees with respect to the base surface 15.
As a result, the base end side of the connecting arm 16 is pivotally pivotally connected.

A telescopic arm 17 is provided at the distal end of the connecting arm 16 so as to slide from the connecting arm 16 and extend and contract linearly. One point on the left and right center lines of a plate-shaped frame C to which the seat portion A and the backrest B are attached.

Then, on the same vertical line of the pivot point d and the base 1
5 is connected to a pivot point e on the tip side of the frame C by a first pivot arm 18 that can pivot, and the pivot point d of the frame C extends from the pivot point d on the center line of the frame C. A point f deviated to the rear side and a pivot point g on the connecting arm 16 are connected by a rotatable second turning arm 19.

In this embodiment, the connecting arm 16 is rotated left and right by a starting force of a motor or the like on the base end side. Next, the operation of this embodiment will be described with reference to FIG.
The case where the seat portion A and the backrest B shown by the two-dot chain line shift from a state perpendicular to the wall surface 1 to a state shown by a solid line parallel to the wall surface 1 will be described.

[0024] In FIG. 5, when the frame C is the wall 1 and a right angle, to the connecting arm 16 is rotated to the right around the pivot point c, pivot point d is moving in d _1, the first Is pivoted rightward about a pivot point e.

As a result, since the telescopic arm 17 is in the contracted state and the pivot point g is located at g ₁ ,
The second pivot arm 19 pivots about the pivot point g ₁ , the pivot point f between the tip of the second pivot arm 19 and the frame C is located at f ₁ , and the seat A and the backrest B are moved in the aforementioned direction. It is aimed at.

When the frame C of this embodiment is to be moved as described above, the connecting arm 16 is rotated by the starting force, but the connecting arm 16 is pivotally mounted during the rotation. It passes through the state of the dashed line connecting the point d ₃ and the pivot point c.

Before passing through this state, the first pivot arm 18 has pivoted about the pivot point e, so that the pivot point d at its tip reaches d ₃ , and the telescopic arm 17 is extended, the center of rotation of the frame C is separated from the wall surface 1. In addition, the second pivot arm 19 pivots around g ₃ that has moved in the positional relationship between the pivot point g and the pivot point f,
Since the pivot point f is moved to f ₃ , the frame C is oriented at right angles to the connecting arm 16, that is, in the direction of 45 degrees with respect to the wall surface 1.

As a result, the vicinity of one of the right and left rear ends of the frame C moves parallel to the wall surface 1 and the other rear end thereof moves linearly in a direction perpendicular to the wall surface 1. It is possible to change the direction of the frame C halfway without hitting the seat portion A and the backrest B.

Then, when passing through the above state and reaching the position indicated by the solid line, the state changes to the state opposite to the state indicated by the two-dot chain line.
The pivot points d, e, f, and g become d ₂ , e ₂ , f ₂ , and g ₂ , and the frame C turns 90 degrees so that the seat A and the backrest B are parallel to the wall surface 1. Thus, the state shown by the solid line in FIG. 5 can be obtained.

Further, by rotating the connecting arm 16 in the opposite direction, the pivot points d, e, f, and g are operated in the opposite direction, and the seat portion A and the backrest B are moved as described above. It is possible to switch from a state in which one row is arranged in series in parallel with the wall surface 1 to a parallel arrangement in which the wall faces 1 again.

A third embodiment will be described below with reference to FIGS. The same parts as those in the first embodiment are denoted by the same reference numerals. In this example,
A seat A is provided on the front side of the frame C to which the backrest B is attached.
The seat frame 20 for attaching is connected rotatably upward,
On the left and right sides of the seat frame 20, fixed frames 21 which are always in a hanging state even when the seat frame 20 is rotated upward are pivotally mounted.

The lower end of the fixed frame 21 is formed in a projecting shape 24, and is located below the fixed frame 21 when the seat portion A and the backrest B are moved to a position parallel to the wall surface 1 and a position perpendicular to the wall surface 1. Each of the floor surfaces 7 has a fixing hole 25 into which the projection 24 is inserted.

When the seat portion A and the backrest B are arranged side by side, a lower extension 2 is provided on the frame C on the side away from the wall surface 1 below the window of the vehicle. The lower extension 2 is a truck 4 on which wheels 3 are mounted on the lower surface.
Is mounted so as to be rotatable.

The other end of one arm 5 of the two arms 5, 6 pivotally connected at one end to the carriage 4 is pivotally connected to the carriage 4, and the other end of the arm 6 is connected to the wall surface 1. Are mounted on a base 8 fixed to the floor 7 along the axis, and these are not different from the first embodiment.

A horizontal guide groove 22 is formed in the wall surface 1, and a slide piece 23 that slides in the guide groove 22 is hinged to a frame C opposite to the lower extension 2. . Therefore, when the seat portion A and the backrest B are in a state parallel to the wall surface 1, if the upper end of the backrest B on the base 8 side is pulled out in a direction perpendicular to the wall surface 1, the arms 5, 6 are horizontal. , The carriage 4 is pulled out in a direction perpendicular to the wall surface 1.

[0036] Therefore, the attachment point of the downward extensions 2 in cart 4 in FIG. 8, through h ₂ when the seat A linearly from h ₁ is moved 45 degrees along the trajectory h, 90 ° leading to h ₃ for changing the direction.

At the same time, the hinge point of the slide piece 23 and the frame C moves along the guide groove 22, so that the trajectory i becomes a straight line along the shape of the guide groove 22, and the above-mentioned h ₁
From i ₁ corresponding to the position to i ₂ corresponding to h ₂ ,
It comes to i ₃ corresponding to h ₃ .

As described above, since the trajectory h of the attachment point and the trajectory i of the butterfly point are straight lines, when the seat portion A and the backrest B change directions, the seat portion A and the backrest B are connected to other seats. Does not come into contact with the backrest D and the wall surface 1 so that the direction cannot be changed.

The fourth embodiment will be described with reference to FIG. 9. In this embodiment, the same parts as those in the third embodiment are denoted by the same reference numerals. In this example,
When the seat portion A and the backrest B of the third embodiment are pulled out at a right angle to the wall surface 1, the two frame members C and C 'which are back to back are connected to the connecting plate 30 fixed to the carriage 4. It is attached to both left and right sides by a hinge 31 so as to be rotatable.

Accordingly, the two frames C and C 'attached to the connecting plate 30 with the hinges 31 rotate in opposite directions when the carriage 4 moves away from or near the wall surface 1. Moreover, similarly to the third embodiment, the locus h of the attachment point and the locus i of the hinged point are straight lines in this embodiment.
Never clash.

For this purpose, if the frame C to which one backrest B is attached is rotated in a direction perpendicular to the wall 1 or in a direction parallel thereto, the other frame C 'is also perpendicular to the wall 1. It can be rotated in a direction or a parallel direction, and the direction changing mechanism can be simplified.

In the above embodiment, the vehicle,
In particular, the case where the present invention is applied to a railway vehicle has been described, but the present invention can be applied to a chair of a vehicle such as a sightseeing bus or a ship. Also,
It can also be applied to a home TV stand, a dining table, and the like.

[0043]

As described above, according to the present invention, a romance seat-like chair installed close to a wall surface is positioned at least near one end on either side of the side close to the wall surface. Alternatively, the direction can be changed by 90 degrees by drawing a linear trajectory in a direction perpendicular to this direction.

Accordingly, a gap is provided between the wall and the outside of a linear locus as in the case of rotation about one point, or a back-to-back parallel arrangement is used. Since it is possible to switch to the serial arrangement method, it is not necessary to provide a gap for avoiding collision with an adjacent chair, and it is possible to eliminate space waste and increase the number of chairs that can be arranged in a predetermined space.

In addition, since the backrest does not need to be tilted forward when turning, unlike a conventional turnable vehicle chair, the turning operation is simple and, in particular, the turning operation is performed by power. In such a case, there is an effect that a mechanism for unnecessary operation is not required and the mechanism can be simplified.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention when the direction is changed in a direction perpendicular to a wall surface.

FIG. 2 is a perspective view when the direction is changed in a direction parallel to the wall surface of the above.

FIG. 3 is a trajectory diagram of the first embodiment.

FIG. 4 is a perspective view of a second embodiment of the present invention.

FIG. 5 is a trajectory diagram of the second embodiment.

FIG. 6 is a perspective view of the third embodiment of the present invention when the direction is changed in a direction perpendicular to a wall surface.

FIG. 7 is a perspective view when the direction is changed in a direction parallel to the wall surface of the above.

FIG. 8 is a trajectory diagram of the third embodiment.

FIG. 9 is a perspective view of a fourth embodiment of the present invention.

[Explanation of symbols]

 A seat B backrest C frame a, b, h, i trajectories c, d, e, f, g pivot point 1 wall surface 5, 6 arm 7 floor surface 11 rotation fulcrum 12 rotation shaft 13, 16 connection Arm 17 Telescopic arm 18 First rotating arm 19 Second rotating arm 21 Fixed frame 22 Guide groove 23 Slide piece 25 Fixed hole 30 Connecting plate

Claims (4)

(57) [Claims] 1. A frame C which constitutes a chair of a vehicle such as a railway vehicle or a ship, and is arranged below the backrest B of the frame C, and rolls on a floor 7 of the vehicle to form the frame. A pair of first wheel 3 and second wheel 10 that support body C, one end of which is attached to wall surface 1 of the vehicle so as to be extendable and contractible in a direction perpendicular to the wall surface, and the other end is attached to first wheel 3 A rotating shaft 12 rotatably mounted on a floor at a substantially midpoint of a line connecting the two wheels in a state where the frame is parallel to a wall surface of the vehicle; Connecting arm 1 for connecting a shaft to the second wheel 10
3. A 90-degree turning device for a vehicle, comprising: 2. A frame C constituting a chair of a vehicle such as a railway vehicle or a ship, one end of which is rotatably mounted on a floor 7 of the vehicle, and the other end of which is centered on the left and right of the frame C. A connecting arm 16 pivotally mounted on a line, a telescopic arm 17 extendable with respect to the connecting arm, and one end pivotally connected to a pivotal joint of the telescopic arm 17 with the frame C, and the other end The first rotatably mounted on the floor 7
A second arm having one end pivotally connected to a substantially central portion of the connecting arm 16 and the other end of the connecting arm 16 pivotally mounted at a position separated from a pivot point at which the connecting arm 16 is pivoted. A 90-degree turning device for a vehicle, comprising: a moving arm 19; 3. A frame C constituting a chair of a vehicle such as a railway vehicle or a ship, and a guide groove 22 attached to a longitudinal wall surface 7 of the vehicle.
A sliding piece 23 slidably guided by the guide groove 22, and a first longitudinal end of the backrest B of the frame C is rotatably attached to the frame C; The arm 6 is attached so as to be able to expand and contract in a direction perpendicular to the wall surface and the other end is pivotally supported by the second longitudinal end of the backrest B in the frame C.
A 90-degree turning device for a vehicle, comprising: 4. A pair of frames C constituting a chair of a vehicle such as a railway vehicle or a ship, and a guide groove 22 attached to a longitudinal wall surface 7 of the vehicle.
A sliding piece 23 slidably guided by the guide groove 22, and a first longitudinal end of the backrest B in each of the frame bodies C is rotatably mounted; and the two frame bodies C. A connecting plate 30 for rotatably connecting a second longitudinal end portion of the backrest B, and one end of the backrest B is attached to the wall surface 1 of the vehicle so as to be expandable and contractible in a direction perpendicular to the wall surface, and the other end is A 90-degree turning device for a vehicle, comprising: an arm 6 pivotally supported by a connecting plate 30.