JPH0722967Y2 - Pantograph for vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a pantograph for holding a vehicle pantograph in a folded state.

[Conventional technology]

FIG. 4 shows a side view of an outer shape of a conventional pantograph, and FIG. 5 shows an example of a key device for the pantograph. In FIGS. 4 and 5, 1 is a frame, 2 is a ceiling pipe, 3 is a key, 4 is an underframe, 5 is a pin, 6 is a tension coil spring, 7 is an electromagnetic key removing device, 8
Represents the shock seat of the key.

Although detailed description of the pantograph body is omitted, the side surface of a general pantograph has a diamond shape when operating, as shown by the solid line in FIG. Power is supplied to the inside of the car. When the vehicle is stopped, the diamond-shaped body is crushed as shown by the dotted line in Fig. 4 to stop the power supply.
The ceiling tube 2 is pressed and held by, and by removing the key at the time of starting, the pantograph rises by the force of a spring spring separately provided, and returns to the original diamond shape to enable power supply.

When further examining the operation of the key when the pantograph descends, the ceiling pipe 2 coming down hits the upper inclined portion of the key 3 and pushes the key 3 open to hook it. At the time of ascending, the electromagnetic key removing device 7 hits the impact receiving seat 8 at the lower part of the key to open the key 3, and the pantograph is elevated.

[Problems to be solved by the device]

However, in the above-described conventional keying device, when the electromagnetic keying-out device 7 hits the impact receiving seat 8 located at the lower part of the key during the keying-out operation, a large impact sound is generated. This is because the movement of the electromagnetic decoupling device 7 is abrupt due to its characteristics, the need for electrical insulation, and a few mm between the electromagnetic decoupling device and the impact receiving seat of the key in order to make the acting force effective. Need a void of
Also, when the pantograph is closed, an impact sound is generated when the key 3 and the underframe 4 collide with each other by the coil spring 6.

This shock noise is especially early and late at night, so the residents are constantly complaining about disturbing sleep.

[Means for Solving the Problems]

The present invention has been made in view of the above-mentioned points, and a specific spring (commonly called a cylindrical spring formed by press-fitting a cylindrical rubber between a metallic frame and a rectangular cored bar at a portion serving as a center of key rotation. (Nighthart rubber spring) is mounted, and at the same time, a shock receiving seat is struck by the electromagnetic key removing device of the key and a cushioning material such as rubber is mounted on the part where the key hits the stopper.

[Action]

With such a structure, when the electromagnetic disengaging device hits the impact receiving seat of the key, the impact is alleviated by the cushioning material and the Neilhard rubber spring, and since the Nynhard rubber spring is interposed between the key and the underframe, vibration of the key is prevented. The sound is prevented from being transmitted to the underframe, and the sound is also suppressed when the key collides with the stopper again when the key is restored.

〔Example〕

FIG. 1 is an enlarged view of a key device showing an embodiment of the present invention, FIG. 2 is an enlarged view of a Nichhardt rubber spring portion of the keying device, and FIG. 3 is an enlarged view of a section AA of the Nichhardt rubber spring.

In FIGS. 1, 2, and 3, 8'is a shock receiving seat provided with a cushioning material, 9 is a Nychhardt rubber spring, and 9a is a frame.
Reference numeral 10 is a stopper, and 11 is a cushioning material, which is made of a core metal 9b and rubber 9c.

Nychhardt rubber spring 9 at the center of rotation of the key
The core metal 9b is fixed to the underframe 4. The key 3 is adjusted by the stopper 10 so as to be vertical, and the core metal 9b of the Nithardt spring is previously twisted and fixed to the underframe 4 so that the rotational restoring force of the Nithardt rubber spring 9 acts. The key is an electromagnetic key removal device 7
The cushioning material 11 is attached to the portion of the impact receiving metal 8'which is hit by and the portion corresponding to the stopper 10.

In such a configuration, the electromagnetic de-keying device 7 operates and 8 '
Even if the impact receiving seat is hit and the pantograph is started up, the impact receiving seat 8'has a cushioning material, and the rubber 9c of the Nichhard rubber spring 9 is located between the key 3 and the underframe 4. Because of the interposition, the vibration of the key is difficult to be transmitted to the underframe 4. Further, when the pantograph is folded, when the key hits the stopper 10 and re-collides, the generation of sound is suppressed.

The cushioning material attached to the impact receiving seat 8'of the key has the same effect as that of the present invention even if the cushioning material 11 attached to the electromagnetic key removing device 7 and the stopper 10 side is attached to the electromagnetic key removing device 7. Is easily imagined.

Further, it is obvious that the same effect as that of the present invention can be obtained when the de-keying device according to the present invention is configured to have a gap between the key-out device and the de-locking device other than the method using the electromagnetic force described above.

[Effect of device]

As described above, according to the present invention, it is possible to substantially eliminate the impact noise generated when the pantograph is disengaged.

In addition, the tension coil spring and its accompanying parts are not required compared to the conventional de-cuttering device, and the entire device is compact, and there is no risk of damage to the ceiling pipe due to failure or impact due to disconnection of the tension coil spring. It is possible to provide a special device having high property.

[Brief description of drawings]

FIG. 1 is an explanatory view of a key removing device showing an embodiment of the present invention, FIG. 2 is an enlarged view of a Nyquid rubber spring, FIG. 3 is an enlarged view of a cross section taken along the line AA ′ of FIG. 1, and FIG. Is a side view of the outer shape of a pantograph, and FIG. 5 is an explanatory view of a conventional key removing device. 1 ... Frame, 2 ... Ceiling tube, 3 ... Key, 4 ... Underframe, 5
...... Pin, 6 ...... Tension coil spring, 7 ...... Electromagnetic key removing device, 8 ...... Impact receiving seat, 8 '... Impact receiving seat with cushioning material, 9 ...... Nighthardt rubber spring, 10 ...... Stopper, 11
…… Buffer material.

Claims (1)

[Scope of utility model registration request] 1. A pantograph for a vehicle, comprising a ceiling pipe (2), a key (3), an underframe (4), an electromagnetic key removing device (7), and a Niedhart rubber spring (9). The ceiling pipe (2) is pivotally supported on the upper ends of upper and lower frames (13) of the pantograph, and one of the keys (3) hooks the ceiling pipe (2) and the other is a Neilhard rubber spring (9). Fixed and cushioning material (1
1) and a cushion receiving seat (8 ') are provided, and the underframe (4) fixes the Nichhardt rubber spring (9),
Further, the Nithard rubber spring (9) has a stopper (10), and the metal core (9a) of the rectangular cylinder is provided outside the core metal (9b) of the prism and the core metal (9b) of the prism.
A cylindrical rubber (9c) is press-fitted in between, and the key (3) is rotatable about the cored bar (9b) with an elastic action. The key (3) is of an electromagnetic key removing device (7). By pressing the buffer seat (8 ') of the key (3), the shaft is detached from the ceiling pipe (2) to raise the pantograph and the buffer material (11) is brought into contact with the stopper (10). Pantograph for railway vehicles.