JP2002087259A - Inclining device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inclining device which is capable of ensuring the riding comfort in the right-and-left direction for passengers when a vehicle passes through a curve and safe for a problem of contact keep of a pantograph by using a pendulum mechanism which is lightweight and high in fail-safe property in chair parts in a vehicle. SOLUTION: A chair structure has a pendulum mechanism which is turnable around the axis in the longitudinal direction in a vehicle under the excessive centrifugal force in a chair inside the vehicle. The riding comfort and the traveling safety during the high-speed traveling can be ensured by a lightweight inclining mechanism.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railway vehicle inclining device.

[0002]

2. Description of the Related Art A conventional railway vehicle inclining device is disclosed in
As described in JP-B-48345, a method in which compressed air is supplied to an air spring on a bogie to move a vehicle body outward in a curvature direction so that a current collector provided on an upper part of the vehicle body does not separate from an overhead line. Is known. In addition, 3-5586
No. 6, JP-A-7-172313, an angle adjusting means is provided on a floor surface or a chair leg which can swing about a longitudinal axis of the vehicle, and the angle adjusting means is controlled to rotate. A method of inclining a floor or a chair leg by means of this is known.

[0003]

SUMMARY OF THE INVENTION The above-mentioned Japanese Patent Application Laid-Open No. 9-483 is disclosed.
In Japanese Patent No. 45, the amount of air consumption increases because the entire vehicle is tilted and the tilting operation of all trains is performed. Further, it is presumed that the internal pressure of the air spring needs to be increased depending on the inclination angle, the spring system becomes hard, and the riding comfort is slightly deteriorated. Furthermore, since the vehicle itself is moved to the outer rail side in order to prevent the wire from being separated, the wheel load on the inner rail side due to this component is reduced.

In Japanese Utility Model Laid-Open Publication No. Hei 3-35866 and Japanese Laid-Open Patent Publication No. Hei 7-172313, it is necessary to secure sufficient floor rigidity in the longitudinal direction of the vehicle. Further, since each chair leg in the vehicle is individually driven to rotate, there is a concern that the control system becomes complicated, the drive source becomes large, and the maintenance property is increased. From the above, there has been a problem that it is difficult to secure a tilting device having a high fail-safe property, because the tilting device can cope with a high speed, the weight of the tilting device can be reduced, and there is a problem of disconnection from the overhead line.

[0005] It is an object of the present invention to use a lightweight pendulum mechanism having a high fail-safe property for a chair part in a vehicle, to secure passengers' right and left riding comfort when passing through a curve, and to be safe against a pantograph disconnection problem. It is to propose.

[0006]

According to the present invention, a chair inside a vehicle is provided with a chair which can rotate about an axis in the front-rear direction of the vehicle under excessive centrifugal force and has a pendulum mechanism. is there. This pendulum mechanism is composed of rollers, linear guides, links and the like. Further, a foot support member synchronized with the rotation of the chair is provided. Further, a stopper mechanism or a suppression mechanism for suppressing the rotation of the pendulum mechanism is provided.

Further, expansion / contraction means attached to the left / right direction of the pendulum mechanism, detection means for detecting the amount of lateral displacement of the pendulum mechanism, and calculation for calculating a target inclination angle from previously stored curve information and traveling speed. Control means for controlling the expansion / contraction means by using a lateral acceleration signal and a tilt angle of the container or the floor of the vehicle body.

Further, in a chair which supports a vehicle body on a bogie via an air spring and is fixed to a floor inside the vehicle body, and in a vehicle having a pendulum mechanism in the chair, the chair is attached to the left and right direction of the pendulum mechanism. Expanded / contracted means 1, a detecting means 1 for detecting the amount of lateral displacement of the pendulum mechanism, an elongating / contracting means 2 for the air spring, a detecting means 2 for detecting the amount of vertical displacement or internal pressure of the air spring; The expansion / contraction means 1, 2 is calculated by using a computer for calculating a target inclination angle from the obtained curve information and the traveling speed, a lateral acceleration signal of the vehicle body floor surface, or an inclination angle.
And a control means for controlling the expansion and contraction means 1 and 2 are provided.

[0009] According to this, since the pendulum mechanism is provided in the chair (for example, two or three seats) in the vehicle, excessive centrifugal acceleration (due to excessive centrifugal force) generated at the time of passing through a curve acts, and the pendulum mechanism of the pendulum mechanism is actuated. Passengers sitting in the seats due to the movement,
It is possible to reduce the increase in the left-right steady acceleration due to the excessive centrifugal acceleration. In addition, by using a roller type, a linear guide type, or a link mechanism as the pendulum mechanism in the chair portion, the structure becomes light and easy to rotate. The effect of dust is also eliminated.
In addition, due to the pendulum action in the chair portion inside the vehicle, the amount of change in the center of gravity of the vehicle itself is small, the influence on wheel load loss is small, and it is possible to ensure that the pantograph on the vehicle roof is not separated from the overhead wire. As described above, the structure of the tilt device having a high fail-safe property is obtained.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a railway vehicle tilting device according to the present invention will be described with reference to FIGS. Body 10
Supports the vehicle body 10 via the air spring 1 on the bogie frame 20. The seat portion 5 of the chair is rotatably supported between a chair leg 3 fixed to the floor 2 and a fixed frame 4 via a pendulum beam 11 and a roller 12. Chair seat part 5 and pendulum beam 11
Between them, a horizontal rotation mechanism (not shown) in the seat direction similar to the conventional one is provided.

In such a configuration, first, the tilting operation of the chair during curve running will be described. The wheels 22 are disposed on the bogie frame 20 via an axle 23 and a shaft spring 21. The vehicle body 10 is supported by the bogie frame 20 via the air spring 1. A curved road is provided with a cant angle C0, and an equilibrium speed determined by a curve radius and a cant angle CO is set. When the vehicle travels on a curve at a speed equal to or higher than the equilibrium speed, the cant angle becomes insufficient, the excess centrifugal acceleration component increases, and the right and left riding comfort of passengers in the vehicle deteriorates.

According to the conventional standard, the standard value of the left-right steady acceleration component on the vehicle body floor 2 is 0.08 g. When the excessive centrifugal acceleration increases, the excessive centrifugal acceleration (in the direction of the arrow) acts on the position of the center of gravity of the seat 14 below the pendulum rotation center 13,
The pendulum beam 11 rotates, and the inclination angle of the seat of the seat portion 5 of the chair acts on the inner rail side. As a result, the excessive centrifugal acceleration component is canceled, and the above-mentioned left-right steady acceleration component can be reduced to a reference value or less.

At this time, the vehicle body 10 is slightly pulled to the outside of the curve by the action of the excessive centrifugal force. However, since the entire vehicle is not tilted, the pantograph (not shown) on the roof of the vehicle body 10 has a small disconnection from the overhead line. Help me. Also,
Since the pendulum mechanism of the natural pendulum action is used, there is no reverse pendulum, and the change in wheel load due to the pendulum action is small.

The embodiment shown in FIG. 3 will be described. In the figure, the same reference numerals as those of the above-mentioned embodiment denote the same members. This embodiment differs from the above-described embodiment in that a linear guide 16 is used instead of the roller 12 of the pendulum mechanism. Thereby, the sliding resistance can be reduced, the pendulum operation becomes smooth, and the reliability due to wear and the like can be improved.

The embodiment shown in FIG. 4 will be described. In the figure, the same reference numerals as those of the above-mentioned embodiment denote the same members. The difference between this embodiment and the above-described embodiment is that a link 30 is used for a pendulum mechanism. The link is fixed frame 1
The upper part of the support member fixed to 5 and the link 30 attached to the pendulum beam side are formed in an eight shape. According to this, the pendulum operation can be performed by the excessive centrifugal acceleration as described above. In addition, by using a chain or the like for the figure-eight link portion, the structure can be reduced in weight.

The embodiment shown in FIGS. 5 and 6 will be described. In the figure, the same reference numerals as those of the above-mentioned embodiment denote the same members. The present embodiment is different from the above-described one embodiment in that a support member 40 for placing legs and feet is provided on the seat portion of the chair 5. FIG. 6 shows a structure in which the support members 41 are arranged obliquely to support the calf of the passenger. According to this, the passenger sitting on the seat and the toe lowered on the floor can be integrally tilted, thereby reducing tiredness of the foot. By the way, you may attach a massager.

The embodiment shown in FIG. 7 will be described. In the figure, the same reference numerals as those of the above-mentioned embodiment denote the same members. This embodiment is different from the above-described embodiment in that a support member 42 is provided for connecting the leg support member 40 to the rear seat. According to this, the seats in the front-rear direction can be synchronized and tilted. In this case, when a control means described later is added, control can be performed at two places, a front position and a rear position, so that the control system can be simplified.

The embodiment shown in FIG. 8 will be described. In the figure, the same reference numerals as those of the above-mentioned embodiment denote the same members. The difference between the present embodiment and the one embodiment is that the fixed frame 4
That is, a stopper mechanism 50 or a restraining means is provided between the pendulum beam 11 and the pendulum beam 11. According to this, the inclination angle of the seat of the chair 5 can be adjusted.

The embodiment shown in FIG. 9 will be described. In the figure, the same reference numerals as those of the above-mentioned embodiment denote the same members. The difference between the present embodiment and the one embodiment is that the fixed frame 4
And a detecting means 61 for detecting the amount of expansion and contraction between the pendulum beam 11 and the pendulum beam 11. According to this, the expansion / contraction means 60 tilts the chair 5 by controlling the amount of expansion / contraction based on the target inclination angle. The inclination target angle is a target value calculated based on curve information (curvature radius, cant angle CO, etc.) stored in advance and a traveling speed, or an actually measured left-right vibration acceleration, inclination angle, bogie installed on the vehicle body floor. A signal from a sensor installed on the frame side may be used.

The embodiment shown in FIG. 10 will be described. In the figure, the same reference numerals as those of the above-mentioned embodiment denote the same members. This embodiment is different from the above-described one embodiment in that an air spring 70 is provided between the horizontal rotation mechanism 15 and the seat 5 of the chair as expansion and contraction means. According to this, only the seat 5 of the chair can be inclined by the expansion and contraction of the air spring.

An embodiment in the case where the speed is further increased will be described. As shown in FIG. 1, when the vehicle further travels at a high speed on a curved road, the above-described inclining device causes insufficient inclining, so that the vehicle is installed on the bogie frame 20 in order to secure the inclining angle of the vehicle body floor surface. The amount of expansion and contraction of the air spring 1 may be controlled to compensate for the insufficient inclination of the floor surface. This eliminates the necessity of increasing the weight due to the addition of the tilting mechanism, thereby ensuring the right and left riding comfort of passengers in the vehicle. Alternatively, by performing a tilting operation in which the floor inclination angle based on the expansion and contraction amount of the air spring and the inclination angle of the chair are combined, the reduction in the inclination angle of the chair or the hardening phenomenon of the spring due to the increase in the expansion amount of the air spring is performed. It can be suppressed.

[0022]

According to the present invention, a light-weight, highly safe pendulum mechanism is used for a chair in a vehicle to secure passengers' right and left riding comfort when passing a curve, and is safe against the problem of pantograph disconnection. A tilting device can be proposed.

[Brief description of the drawings]

FIG. 1 is a front view of a vehicle tilting device according to an embodiment of the present invention.

FIG. 2 is an enlarged view of the pendulum mechanism of FIG.

FIG. 3 is an enlarged view of another pendulum mechanism.

FIG. 4 is a front view of another tilting device.

FIG. 5 is a side view of a chair unit showing another embodiment.

FIG. 6 is a side view of a chair unit showing another embodiment.

FIG. 7 is a side view of a front and rear arrangement of a chair unit showing another embodiment.

FIG. 8 is a front view of a pendulum mechanism showing another embodiment.

FIG. 9 is a front view showing a control unit according to another embodiment.

FIG. 10 is a front view showing a tilting means showing another embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Air spring, 2 ... Body floor surface, 3 ... Leg, 4 ... Fixed frame, 5
... chair, 11 ... pendulum beam, 12 ... roller, 16 ... linear guide, 30 ... link, 40 ... support member, 60 ... expansion and contraction means

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hideo Takai 794, Higashi-Toyoi, Kazamatsu, Kudamatsu-shi, Yamaguchi Prefecture Inside the Kasado Plant, Hitachi, Ltd. Inside the Kasado Works of Hitachi, Ltd.

Claims (10)

[Claims] 1. A tilting device according to claim 1, wherein the vehicle is provided with a chair rotatable around an axis in the front-rear direction of the vehicle in response to excessive centrifugal acceleration. 2. The tilting device according to claim 1, wherein the chair is provided with a pendulum mechanism. 3. The tilting device according to claim 2, wherein a roller is used for the pendulum mechanism. 4. The tilting device according to claim 2, wherein a linear guide is used for the pendulum mechanism. 5. The tilting device according to claim 2, wherein a link is used for the pendulum mechanism. 6. The tilting device according to claim 2, further comprising a support member synchronized with the rotation of the chair. 7. The tilting device according to claim 2, further comprising a stopper mechanism or a suppression mechanism for suppressing rotation of the pendulum mechanism. 8. A pendulum mechanism according to claim 2, wherein the pendulum mechanism has a telescopic unit attached to the right and left direction, a detecting unit for detecting a lateral displacement amount of the pendulum mechanism, and curve information stored in advance.
A tilting device, comprising: a calculator for calculating a target tilt angle from a running speed or a control means for controlling the expansion / contraction means using a left / right acceleration signal of the vehicle body floor surface and a tilt angle. 9. A chair which supports a vehicle body on a bogie via an air spring and is fixed to a floor inside the vehicle body, and a vehicle provided with a pendulum mechanism in the chair, attached to the left and right direction of the pendulum mechanism. Expansion / contraction means 1, detection means 1 for detecting the amount of lateral displacement of the pendulum mechanism, and expansion / contraction means 2 for the air spring
Detecting means 2 for detecting the amount of vertical displacement or internal pressure of the air spring; a calculator for calculating a target inclination angle from curve information stored in advance, a traveling speed or a lateral acceleration signal of the vehicle body floor surface, or an inclination angle. A tilting device provided with a control means for controlling the expansion and contraction means 1 and 2 and the expansion and contraction means 1 and 2. 10. A chair fixed to a floor inside a vehicle body,
An inclining device comprising: a vehicle having a pendulum mechanism in the chair, wherein the pendulum mechanism is provided with expansion / contraction means attached in a vertical direction.