DE405522C - Railway spring buffers - Google Patents

Description

The invention relates to railway spring buffers with a cutout the buffer sleeve and the buffer plunger reaching through the stop piece on which the Compression of the buffer forces are transmitted which seek to rotate the stop piece. The invention consists in that the longitudinal edges of the recesses run so obliquely to the longitudinal axis of the buffer ίο that the stop piece is unhindered can turn.

In the drawing, an embodiment of the subject matter of the invention is illustrated, namely shows:
Fig. Ι an axial longitudinal section of the buffer,

Fig. 2 is a top view of Fig. 1 and
Fig. 3 is a section along the line 3-3 of Fig. 1, seen from the left.
A buffer sleeve B , in which a buffer plunger can be moved, is screwed to the buffer beam A. In the buffer sleeve B a spring D is arranged, which is supported with its one end against the buffer beam A and with its other end against a centering piece E engaging with a pin e ¹ in the innermost turn of the spring D. On a second pin e ² des. Centering piece E is pushed on a stop piece F , which engages through recesses b ¹ and c ^{1 of} the buffer sleeve or the buffer plunger and against which a washer plate G , which is also pushed onto the pin e ² and is guided ^{in the recesses c 1, rests.} The pin e ^{2 also} engages in the innermost turn of a second buffer spring Ji with a lower spring force than the spring D. The spring H is supported with its one end against the washer plate G and with its other end against the buffer plate c ² .

The longitudinal edges b ² and c ⁸ (Fig. 2) of the recesses b ¹ and c ¹ are inclined opposite to the longitudinal axis

of the buffer at an angle determined by the dimensions of the buffer springs is.

When the buffer is compressed, the innermost turns of the two buffer springs D and H seek to twist with respect to the outermost turns by an angular amount that depends on the dimensions of the springs and the current load. Since the springs rest on the centering piece E directly or through the intermediation of parts G and F with strong friction, the angular rotations of the springs seek to take the centering piece .E and thus the stop piece F with it.

If both springs D and H are wound in the same direction, the aforementioned angular rotations take place in the opposite direction, but the stronger spring D retains the predominance and rotates the stop piece F in the direction that corresponds to the angular rotation of spring D. If both springs D and H are wound in opposite directions, both springs try to turn parts G, F in the same direction.

This rotation can easily be followed by the stop piece F with the plate G due to the inclined arrangement of the recesses b ¹ and c ¹ , so that pitting of the parts E, F, G and the walls of the recesses b ¹ , c ¹ as well as unfavorable stresses on these parts be avoided. Since the longitudinal edges of the two recesses d ¹ and c ¹ run obliquely to one another at an angle corresponding to the rotation of the buffer springs, there is no rotation of the plunger relative to the buffer sleeve when the buffer is compressed.

Claims (1)

Patent claim: Railway spring buffer with a stop piece reaching through recesses in the buffer sleeve and the buffer plunger, to which forces are transmitted when the buffer is compressed, which seek to rotate the stop piece, characterized in that the longitudinal edges (b ² , c ⁸ ) of the recesses (& ¹ , c ¹ ) run in the opposite direction to the longitudinal axis of the buffer. Fig.t Fig 3. C ² " Fig 2.