JPS5824307B2 - coupler device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coupler device particularly suitable for passenger vehicles used on railways, that is, passenger cars, electric trains, and diesel cars. -44263
This invention relates to an improvement of the No. ``Vehicle coupler device'' (hereinafter referred to as the original invention).

The original invention provides a coupler device that, when the coupler device acts as a buffer, changes in the amount of force with respect to the stroke of the shock absorber are continuous, so that the impact force applied to the vehicle body is small, and therefore does not cause discomfort to passengers. However, the present invention has been further improved to have the same operation and effect as the original invention, but it is easier to install and remove from the vehicle body, and the number of component parts is reduced, resulting in a simple and inexpensive device. The purpose is to provide.

FIG. 1 shows an embodiment of a coupler device according to the invention.

The front and rear of the intermediate plate 2 and the companion plates 5 and 6 that are integrated with the force transmission element 1
A coupling device in which shock absorbers 3 and 4 are interposed in series after receiving initial compression engages trail plates 5 and 6 with trail plate guards 7 and 7 fixed to the vehicle body, and connects the vehicle body frame. 8,8.

A connector (not shown) is swingably attached to the end of the force transmitting element 1.

In such a coupler device, when no external force acts, it is in a neutral state, that is, as shown in FIG. The plate 2 is at the mouth point, that is, the zero point, as the compressive repulsive forces of both the shock absorbers 3 and 4 cancel each other out.

When a pushing force is applied to the force transmission element 1 from the outside, each of the shock absorbers 3 and 4 strokes, producing a compressive force on the shock absorber 4 along a curve C, and an expansion force on the shock absorber 3 along a curve B. A force is generated, and a pushing force acts on the intermediate plate 2 along the composite curve A.

Further, when a pulling force acts on the force transmission element 1, a compressive force is generated in the buffer 3 along the curve B, a tensile force is generated in the buffer 4 along the curve C, and a tensile force is generated in the intermediate plate 2 along the curve A. A pulling force acts along the line.

In this way, even if a pushing force or a pulling force acts on the intermediate plate 2 from the outside, the amount of force changes continuously, so the impact force applied to the vehicle body is small, and therefore does not cause discomfort to passengers.

By the way, the coupling device of the original invention is attached to or removed from the vehicle body by making the external dimensions of the trailing plates 5 and 6 smaller than the internal dimensions of the coupling device attachment portion of the trailing plate guards 7 and 7. In this embodiment, the dimensional relationship is as follows: In this embodiment, the nuts N1 and 12 are screwed into threaded portions 9 and 10 carved in the front and rear parts of the force transmitting element 1.
Tighten and establish it.

After installation on the vehicle body, the nuts 11 and 12 are sufficiently separated from the trailing plates 5 and 6, respectively, so that when the coupler device is activated, the nuts 11 and 12 are
2 must not come into contact with the trailing plates 5 and 6.

Therefore, when attaching and detaching the coupler device to the vehicle body, it is difficult to get under the vehicle body and loosen or tighten the Narrow NL12, especially as the buffer capacity of shock absorbers has increased in recent years. The spring force increases and a large operating force is required to rotate the Narrow NL 12, resulting in problems such as increased worker fatigue and wear and tear of the threaded portions 9 and 10.

In order to solve the above problems, the present invention uses an intermediate body 14 having a shape as shown in FIG. 5 in place of the intermediate plate 2.

That is, the intermediate body 14 is made of a rigid body, and is a square column having spring seats 14a formed on both end faces on which one end of each of the pair of buffers 17 and 18 is seated, and a through hole 2 parallel to and horizontal to the core part.
0a and communicates with the through hole 20a.
Ear portions 16, 16' having b are provided in a protruding manner.

Note that the ear portions 16, 16' may be constructed as a separate body and fastened to the intermediate body 14 with bolts or the like.

An embodiment of the coupler device including the intermediate body 14 is shown in the third and fourth embodiments.
As shown in the figure.

The ears 16, 1 of the intermediate body 14 are inserted into a pair of elongated holes 15, 15' drilled in the longitudinal direction in the center of the side member of the frame 13 of the coupler.
6', and the through hole 20b is slidably engaged with the elongated hole 15,1.
A pair of buffers 17 and 18 are interposed in the frame 13 on the front and rear sides of the intermediate body 14, which are perpendicular to the intermediate body 14, respectively, in an initially compressed state.

The end of the coupler 50 is attached to one end of the frame 13 by a universal joint 24, a horizontal pin 25, and a vertical pin 23 so as to be swingable.

19.19' are holes 19a, 1 coaxial with the through hole 20a of the intermediate body fixed opposite to the immovable member on the external vehicle body side.
9a', and the installation of this coupler device to the vehicle body involves inserting the intermediate body 1 into holes 19a, 19a' drilled in the receivers 19, 19' and through holes 20a, 20b.
One bottle 21 is inserted as a fixing member for the intermediate body 1.
Perform positioning in step 4.

Needless to say, the bottle 21 should be provided with measures to prevent it from being pulled out, such as by inserting a split bottle into the end.

Reference numeral 22 denotes a frame holder provided on the vehicle body side to prevent the frame 13 from rotating around the bin 21 as a fulcrum.

If a cotter is used as a fixing member for the intermediate body 14 instead of the bottle 21, the frame support 22 can be omitted.

Also, as shown in Figures 6 and 7, the coupler 50' and the frame 13'
The frame support 22 can be omitted if the bins 21 are connected only by the vertical pins 23' and the bin 21 has the function of the horizontal bin 25.

Note that the shock absorbers 17 and 18 are made of coil springs, for example.
Any material may be used as long as it is compressed in response to an external force and returns to its original shape when the external force is removed.

Since the connector device according to the present invention is configured as described above, when a pushing force or a pulling force is applied from outside, the force of curve A in FIG. 2 acts on the intermediate body, The nuclear force is transmitted to the car body via the bottle and a receiver provided on the outside of the car body.

However, in this case, contrary to the operation of the buffer in the original invention, the buffer 17 on the left side of the intermediate body in the figure is compressed when a pushing force is applied, and the buffer 18 on the right side is compressed when a pulling force is applied. will be compressed during the action of

A coupler device according to the present invention includes a frame having elongated holes in the longitudinal direction of both side members constituting a part of the frame of the coupler, and an ear portion having a through hole in a direction perpendicular to the elongated holes, an intermediate body made of a rigid body whose ears are slidably engaged with the elongated holes; two shock absorbers each interposed in an initially compressed state with the intermediate body sandwiched within a frame; two receivers that are fixed opposite each other and have a hole coaxial with the through hole of the intermediate body; a fixing member that is inserted through the through hole of the intermediate body, the two elongated holes of the both side members, and the hole of the receiver; Consisting of

Therefore, the change in the amount of force with respect to the stroke of the shock absorber during the shock-absorbing action of the coupler device is continuous, so the impact force applied to the car body is small, so it does not cause discomfort to passengers, and the intermediate body is sandwiched and compressed for the first time. The coupling device in which the shock absorber is inserted in the frame is installed by a simple operation of inserting a bottle or a connector into a hole in a receiver provided in the vehicle body and a hole in the intermediate body.

In addition, the horizontal pin of the universal joint can be omitted by rotating the frame of the coupler in the vertical direction using a pin as a fixing member inserted through a hole in a receiver fixed to the vehicle body and a through hole drilled in the intermediate body. You can also do that.

[Brief explanation of drawings]

Fig. 1 is a plan view showing how a conventional coupler device is attached to the vehicle body, Fig. 2 is a diagram showing the stroke and force relationship of the shock absorber and the intermediate plate or intermediate body, and Fig. 3 is the main FIG. 4 is a plan view showing how the coupler device according to the invention is attached to the vehicle body; FIG. 4 is a side view with the receiver shown in FIG. 3 removed; FIG. 5 is a perspective view showing an embodiment of the intermediate body; FIG. 7 is a plan view showing how another embodiment of the coupler device according to the present invention is attached to the vehicle body, and FIG.
FIG. 3 is a side view with the receiver shown in the figure removed. 13; Frame, 14; Intermediate, 15, 15'; Long hole, 16.
16'; Ear, 17; Buffer, 18; Buffer, 19.1
9': Receptacle, 20a: Through hole, 20b: Through hole, 21: Bottle, 22: Frame holder.

Claims (1)

[Scope of Claims] 1. A frame having elongated holes in the longitudinal direction of both side members constituting a part of the frame of the coupler, and an ear portion having a through hole in a direction perpendicular to the elongated hole. an intermediate body made of a rigid body whose part is slidably engaged with the elongated hole; two shock absorbers each inserted in an initially compressed state with the intermediate body sandwiched within a frame; Consisting of two receivers that are fixed opposite each other and have a hole coaxial with the through hole of the intermediate body, and a fixing member that is inserted through the through hole of the intermediate body, two elongated holes of both side members, and the hole of the receiver. A coupler device characterized by: 2. The coupler device according to claim 1, wherein the frame is rotated in the vertical direction by a pin serving as a fixing member inserted through a hole in a receiver fixed to the vehicle body and a through hole drilled in the intermediate body.