JP2556312Y2 - Pendulum type vehicle pendulum device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pendulum device of a pendulum type vehicle suitable for high-speed traveling.

[0002]

2. Description of the Related Art A conventional pendulum type vehicle is disclosed in, for example,
As shown in Japanese Patent Application Laid-Open No. 2-197468, an upper surface of a bogie frame and a lower surface of a pendulum beam provided at a lower portion of a vehicle body are formed on an arc surface along a trajectory of a pendulum motion. There is provided a pendulum device in which a cylindrical roller is arranged, and the arc surface of a pendulum beam is rolled on the roller to bring the vehicle body into a pendulum state when passing through a curved section of a track, thereby reducing the perceived centrifugal force of a passenger.

[0003]

The pendulum type vehicle aims at improving the speed and the riding comfort at the curved section of the track, but the pendulum angle is conventionally set at 3 to 5 degrees due to various conditions and the like. Because it was done, there is a limit to high-speed running on the curved part,
Further, a pendulum motion at a large angle (about 8 degrees) is required for high-speed running. However, in the conventional pendulum device, since a large body load in the vertical direction is concentrated on a pair of left and right rollers, the pendulum motion outside the rollers themselves is required. There is a problem that the diameter must be increased in terms of strength, and the pendulum device becomes large, resulting in a shortage of the space space of the bogie.

Further, the pendulum angle of a pendulum type vehicle, that is, the relative angular displacement between the vehicle body and the bogie, continuously changes in a linear portion, a curved portion, and a transition curve portion of the track. In addition, since the torsion is added to the vehicle body due to the difference in curve cant, the deviation of the track, the accumulation of vehicle manufacturing errors, etc., the operating resistance applied to the left and right pendulum devices provided on the front and rear bogies differs, and the curved portion This hindered the improvement of passing performance.

Accordingly, the present invention aims to improve the speed and riding comfort on a curved road, and to increase the pendulum movement.
Another object of the present invention is to provide a pendulum device for a pendulum type vehicle in which the resistance of the pendulum motion and the fluctuation of the resistance are small even if the vehicle body is twisted.

[0006]

According to the present invention, there is provided a pendulum device for a pendulum type vehicle in which a vehicle body is pendulum-moved by a pendulum device disposed between a pendulum beam and a bogie frame.
The pendulum device includes a guide rail formed along a trajectory of a pendulum motion, and a guide block having a guide portion that allows the guide rail to move only in the pendulum direction. Providing a plurality of rows of ball rolling grooves corresponding to the ball rolling grooves of the guide rail, and providing a large number of small-diameter rolling balls between the ball rolling grooves, Either the guide rail or the guide block is disposed on the bogie frame, and the other is disposed on the pendulum beam, and an elastic member is interposed at least between the guide rail or guide block disposed on the bogie frame and the bogie frame. It is characterized by:

[0007]

[Work] With this configuration, the guide rail and the guide block slide in the direction of the pendulum relative to each other when a large number of rolling balls arranged between the two ball rolling grooves roll. Also, the guide rail and guide block are
Since it is in contact with a large number of rolling balls, the vehicle load in the front-rear and vertical directions is dispersed and supported by the large number of rolling balls, and since the rolling balls have a small diameter, the pendulum angle is reduced by thinning the pendulum device. Spacing space for enlargement is possible, and the guide rail can be lengthened, and the torsion etc. occurring in the vehicle body itself is prevented by the elastic member arranged between the bogie frame and the guide block or guide rail. Absorb.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

The pendulum device 1 includes a pair of left and right guide rails 3 and 3 disposed on a pendulum beam 2 and a pair of left and right guide blocks 4 and 4 fixed to a bogie frame (not shown). ing.

The guide rails 3, 3 are formed along the trajectory of the pendulum motion and have a head 3a having a substantially T-shaped cross section, and four rows of rolling ball grooves 3b are provided at each corner of the head 3a. Is provided.

A guide rail 3 is fixedly provided on the lower front surface and the rear surface of the pendulum beam 2, and a guide rail 3 provided on the front surface of the pendulum beam 2 is disposed with the head 3a facing the front of the vehicle body.
The guide rail 3 provided on the rear surface is disposed with the head 3a facing the rear of the vehicle body.

On the other hand, the guide blocks 4 and 4 are respectively disposed on the front side and the rear side of a pair of left and right guide block receivers 5 and 5 fixed to a bogie frame (not shown).

The guide block 4 has a concave guide portion 4a into which the head 3a of the guide rail 3 is inserted along the trajectory of the pendulum movement. The guide block 4 provided on the front side of the guide block receiver 5 has: The opening of the concave guide portion 4a faces the rear of the vehicle body, and the guide block 4 provided on the rear side of the guide block receiver 5 has the opening of the concave guide portion 4a facing the front of the vehicle body.

The guide block 4 has a concave guide portion 4a.
Lip portions 4b, 4b are provided to face each other in the opening, and four rows of rolling ball grooves 4c are provided at the inner corner of the concave guide portion 4a and at the corner where the lip portions 4b, 4b rise. Between the moving ball groove 4c and the rolling ball groove 3b of the guide rail 3, a large number of rolling balls 6 made of small-diameter precision steel balls are arranged.

Therefore, the movement of the guide rail 3 in the longitudinal direction and the vertical direction of the vehicle body is restricted, but the guide rail 3 can be moved in the pendulum direction by rolling of the rolling ball 6.

The guide block 4 provided on the front side of the guide block receiver 5 has front and lower surfaces and a guide block receiver 5.
The guide block 4 provided on the rear side of the guide block receiver 5 has the elastic rubber 7 between the rear and lower surfaces and the guide block receiver 5.

The elastic rubber 7 has two L-shaped rubber receivers 7.
A rubber layer 7c is tightly vulcanized between a and 7b, and the guide block 4 is attached to an inner rubber receiver 7a via a safety stopper fitting 8 for restricting the movement of the guide block 4 and the elastic rubber 7 in the thrust direction. The outer rubber receiver 7b is fixed to the guide block receiver 5 with a bolt 9 via a shim plate 10.

As a safety measure when the rubber layer 7c is cut, a rubber layer 7c,
A safety pin 7d penetrating the outer rubber receiver 7b and the guide block receiver 5 is formed to protrude.

The guide block receiver 5 has four insertion holes 5a for the bolts 9 and a projection hole 5b for the safety pin 7d at the center thereof. Bolt holes 5c are formed at two places.

When the guide block 4 is mounted on the guide block receiver 5, as shown in FIG. 3, in order to eliminate the initial assembly error of the vehicle itself, as shown in FIG.
The guide rail 3 and the guide block 4 are measured by a pulling bolt 12 for adjusting the mounting position, which is screwed from a to the guide block 4, and a push bolt 13 which is screwed into the bolt hole 5c and presses the elastic rubber 7. Guide block 4
Is finely adjusted to position the guide block 4, and after sandwiching the shim plate 10 having a thickness corresponding to the gap between the outer rubber receiver 7b and the guide block receiver 5, the bolts 9 and 11 are tightened and fixed. I do.

In the pendulum device 1 configured as described above, the longitudinal and vertical loads of the vehicle body are controlled by four rows of rolling ball grooves 3b formed in the head 3a of the guide rail 3 and the concave guide portion of the guide block 4. Acts on a number of rolling balls 6 arranged between the four rows of rolling ball grooves 4c formed in 4a, but the rolling ball grooves 3b of the guide rail 3 and the rolling ball grooves of the guide block 4 4c is in contact with many rolling balls 6 in a state close to line contact, so that the front and rear and vertical loads are dispersed and supported by many rolling balls 6, so that the rolling balls 6 roll smoothly. Move.

For this reason, the movement of the guide rail 3 in the longitudinal and vertical directions of the vehicle body is restricted, but a large pendulum motion can be performed by the smooth rolling of the rolling ball 6 in the pendulum direction. Since the diameter of the pendulum 6 is small, it is possible to make the pendulum device 1 thinner and to provide a space for increasing the pendulum angle, and to lengthen the guide rail 3.

The elastic rubber 7 interposed between the guide block receiver 5 and the guide block 4 absorbs torsion caused by the difference in cant, the deviation of the track, the assembly error of the vehicle itself, etc. Exercise is maintained, and speed improvement and riding comfort on curved roads can be improved.

Therefore, the pendulum angle can be increased by reducing the size of the pendulum device 1, and the resistance of the pendulum motion and the fluctuation of the resistance can be reduced even if the vehicle body is twisted. Can be improved.

In the above embodiment, the guide rail 3 is provided on the pendulum beam 2 and the guide block 4 is provided on the bogie frame. However, the guide block 4 is provided on the pendulum beam 2 and the guide rail 3 is provided on the bogie frame. May be provided, and the elastic rubber 7 may also be provided on the guide rail 3 side. Further, the elastic rubber 7 is improved in torsional absorption performance by lowering the spring constant by making a hole in the front-rear direction, and by increasing the spring constant in the vertical direction, the rubber rubber is capable of reducing the creep of the rubber due to the vertical load. Can respond.

[0026]

As described above, according to the present invention, the pendulum device is composed of the guide rail formed along the trajectory of the pendulum motion and the guide block provided with the guide portion allowing the guide rail to move only in the pendulum direction. The guide rail is provided with a plurality of rows of ball rolling grooves, and the concave guide portion is provided with a plurality of rows of ball rolling grooves corresponding to the ball rolling grooves of the guide rail. A large number of small-diameter rolling balls are arranged, one of the guide rail and the guide block is arranged on a bogie frame, the other is arranged on a pendulum beam, and at least a guide rail or a guide block arranged on the bogie frame. Since an elastic member was interposed between the bogie frame,
The guide rail and the guide block mutually slide in the pendulum direction when a number of rolling balls arranged between the ball rolling grooves roll.

The guide rail and the guide block are
Since it is in contact with a large number of rolling balls in a state close to line contact, the vehicle load in the front and rear and up and down directions is dispersed and supported by the large number of rolling balls, and furthermore, since the rolling balls have a small diameter,
In addition to making the pendulum device thinner and providing a space space for increasing the pendulum angle, it is possible to lengthen the guide rail, and torsion and the like generated in the vehicle body itself are caused by the bogie frame and the guide block or guide rail. The elastic member disposed between the two absorbs.

Accordingly, the pendulum angle can be increased by reducing the size of the pendulum device, and even if the vehicle body is twisted due to a difference in cant, an irregular track, or an assembling error of the vehicle itself, the resistance of the pendulum motion and the fluctuation of the resistance. , It is possible to improve the speed on a curved road and the riding comfort.

[Brief description of the drawings]

FIG. 1 is a sectional view of a pendulum device showing an embodiment of the present invention.

Fig. 2 Front view of the pendulum beam

FIG. 3 is a sectional view showing adjustment of a mounting position of a guide block.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Pendulum apparatus, 2 ... Pendulum beam, 3 ... Guide rail, 3a ...
Head, 3b: rolling ball groove, 4: guide block, 4a
... concave guide part, 4c ... rolling ball groove, 5 ... guide block receiver, 6 ... rolling ball, 7 ... elastic rubber

Claims (1)

(57) [Scope of request for utility model registration] 1. A pendulum device for a pendulum type vehicle in which a vehicle body is pendulum-moved by a pendulum device disposed between a pendulum beam and a bogie frame, wherein the pendulum device includes a guide rail formed along a trajectory of the pendulum motion. A guide block provided with a guide portion that allows movement only in the pendulum direction of the guide rail, wherein a plurality of rows of ball rolling grooves are provided in the guide rail,
In the concave guide portion, a plurality of rows of ball rolling grooves corresponding to the ball rolling grooves of the guide rail are provided, and a large number of small-diameter rolling balls are arranged between the two ball rolling grooves. Either one of the blocks is provided on the bogie frame and the other is provided on the pendulum beam, and at least a guide rail or guide block provided on the bogie frame and an elastic member are interposed between the bogie frame. Pendulum device for pendulum type vehicles.