JPH0270573A - vehicle coupler - Google Patents

Abstract

PURPOSE:To reduce the noise generated from a coupler by constructing the title device of a connecting shaft with a flange formed at its intermediate part, a precompressed rubber buffer fitted at the connecting shaft and a vertical pin with a rubber bush for coupling the title device with each car body. CONSTITUTION:A vertical pin 4 for coupling both ends of a rod type coupler 3 with a coupler receiver 2 is vertically disposed in its center axis and formed of a ring 19 and a rubber bush provided by vulcanizing adhesion. A cylindrical buffer 5 is provided with ringular rubber buffers 9a, 9b in its interior; and the one end of the buffer 5 is formed with smaller outer diameter as a coupling end 14, and a hole for inserting the vertical pin 4 is provided at its end part. A flange 10 formed approximately at the center part of a connecting shaft 11 is positioned between the ringular rubber buffers 9a, 9b, and the connecting shaft 11 is disposed with both its ends piercing through the ringular rubber buffers 9a, 9b. A screw 18 is further formed at the end part of the connecting shaft 11, a guide ring 15 is screwed with the screw 18, and a cylinder 16 with a slidable guide ring 15 is fittingly provided inside the coupling end 14.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vehicle coupler, and more particularly to a vehicle coupler suitable for a rod-like coupler provided between vehicles in a formation.

[Conventional technology]

Conventional vehicle couplers have pins with central axes arranged vertically and horizontally, respectively, in order to allow relative displacement between the connected vehicles in the vertical and horizontal directions. A common configuration was to connect the connector body and the buffer. In addition, regarding the shock absorber, an elastic body that has been precompressed to bear a large load and an elastic body that bears an unloaded load are installed in series, and each of the elastic bodies operates according to the load. This allows for shock absorbing operation with less impact.

Note that related devices of this type include, for example, Japanese Utility Model Publication No. 52-57538.

[Problem to be solved by the invention]

The above-mentioned conventional technology has a structure for attaching a shock absorber to an underframe and a loose a
The coupling structure between the n and the coupler is such that the load is transmitted through contact between the metal members, so when the load is large, the impact noise between the metal members is large.
In addition, large impact noises are also generated due to gaps caused by wear of the pin joints. Furthermore, when joining metal members together, displacement cannot be absorbed due to the flexure of the joint.
There is a risk that the structure will become complicated, such as having to use orthogonal bin connections that allow displacement in at least two orthogonal directions.

As described above, in the prior art, sufficient consideration has not been given to the generation of impact sound, that is, noise, and to the simplification of the structure.

An object of the present invention is to provide a vehicle coupling device that suppresses noise generation.

[Means to solve the problem]

The above object is to provide a connecting shaft having seven flange in the middle portion, a pre-compressed rubber shock absorber disposed on both sides of the flange in the longitudinal direction of the connecting shaft, and a rubber! ! Supports both ends of the hook, and
The AWI device main body has the connecting shaft protruding from one end, and a vertical pin having a rubber bush that connects the protruding end of the connecting shaft from the AM device main body, the end of the shock absorber main body, and each vehicle body. This is achieved by

[Function] The coupling between the coupler and the vehicle body is made by a vertical pin, and a rubber shock absorber is installed between the coupling shaft and the shock absorber body, and a rubber shock absorber is installed between the load transmitting members. An elastic body consisting of is installed. Therefore, when a vehicle end load acts on the coupler, impact noise can be prevented from occurring. Therefore, the noise generated from the coupler can be reduced.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a vehicle coupling device according to the present invention will be described below with reference to FIGS. 1 and 2. In the same figure, la,
lb is the body of the vehicle to be connected, 2 is each vehicle body 1a, lb
This is a coupler holder added to the underside of the O frame. 3 is a rod coupler provided between the coupler receivers 20 of each vehicle body 1a, lb. The detailed structure of the second rod coupler 3 will be explained below. 4 is a vertical pin that connects both ends of the correction connector 3 to the connector receiver 2;
Its central axis is placed in the direction of subordination. Further, the vertical pin 4 is composed of a ring 19 and a rubber bush 8 provided by vulcanization bonding. Reference numeral 5 denotes a cylindrical shock absorber, which is equipped with ring-shaped rubber shock absorbers 9a and 9b inside, and has a connecting portion 414 at one end with a small outer diameter, and a vertical feed storage bin 4 at one end. There is a hole into which the is inserted. Between the ring-shaped rubber shock absorbers 9a and 9b, there is a flange 10 formed approximately at the center of the connecting shaft H.
is located, and both ends of the connecting shaft 110 are arranged to pass through the ring-shaped rubber shock absorbers 9m and 9b. Further, a screw 18 is formed at the end of the connecting shaft U, and the screw 18
A cylinder 6, on which a guide ring 15 is screwed, and on which the guide ring slides, is fitted inside the connecting end 14. Therefore, the connecting shaft 11 and the cylindrical a-shocker 5
Relative displacement in the axial direction between the guide ring 15 and the cylinder 16 is allowed. In addition, 1
Reference numeral 3 designates a stop pin for attaching the guide ring to the connecting shaft 11.

Next, on the opposite side of the front connection jll14 of the cylindrical shock absorber 5, the ring-shaped rubber shock absorbers 9a, 9b and the flange l
A presser foot 3i112 is opened for inserting the ring-shaped rubber shock absorbers 9a and 9b and holds them by applying precompression.
is installed. The presser cover is provided with a hole through which a buffer shaft 17 threadably connected by a screw 18 provided at the other end of the connecting shaft H passes through, and a cylinder 16 is provided in the sliding portion of the hole. There is. The buffer shaft 17 is connected to the vehicle body 1
It is connected by a bolt to a connecting rod 6 which is attached to the coupler receiver 2 of b through a vertical pin 4.

In such a configuration, relative displacement between the vehicle body 1a and the vehicle body tb in the connected state is permitted by the rotation of the vertical pin 4 and the deflection of the rubber bush 8.

Moreover, the rubber bushing 8 also buffers a small vehicle end load generated between the vehicle bodies 1a and 1b. On the other hand, a large a-end load generated during connection work between the vehicle bodies 1a and 1b is buffered by the ring-shaped rubber shock absorbers 9a and 9b.

With such a configuration, the vehicle end load generated between the vehicle body 1a and the vehicle body tb is transmitted by the aforementioned coupler, and the coupler does not have contact between metal materials as described above. Therefore, impact noise is not generated due to the load transmission.

Furthermore, relative displacement between the vehicle bodies 1a and 1b is allowed by the rotation of the vertical pin 4 and the rubber bush 8, and the structure can be simplified compared to the conventional orthogonal bin support structure. Further, in the vertical pin 4, there is no possibility that noise will be generated when the relative displacement is allowed.

Next, for large loads, the ring-shaped rubber shock absorber 9a is pre-compressed.
, 9b, and small loads are buffered by the vertical pins 4.The buffering means has a simple structure and can buffer a wide range of loads.

Furthermore, the above-mentioned coupler has a cylindrical shape as a whole, and has a very simple structure, which is advantageous in terms of securing installation space.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to suppress the generation of noise in a vehicle coupler.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of a vehicle coupler according to the present invention, and FIG. 2 is a partial sectional view of the vehicle coupler shown in FIG. 1. 3... Rod coupler, 4... Vertical pin, 5...
...Cylindrical edge *a, S...Rubber bushing, 9
m, 9b...Ring-shaped shock absorber,...Press cover 10...Flange, 11...Connection shaft,

Claims (1)

[Claims] 1. A connecting shaft having a flange in the middle, a pre-compressed rubber shock absorber disposed on both sides of the flange in the longitudinal direction of the connecting shaft, supporting both ends of the rubber shock absorber, and supporting the connecting shaft. It is characterized by being composed of a shock absorber body protruding from one end, and a vertical pin having a rubber bush that connects the protruding end of the connecting shaft from the shock absorber body and the end of the shock absorber body and each vehicle body. Vehicle coupler.