DE369375C - Hopper trolleys - Google Patents

Description

GERMAN EMPIRE

ISSUED ON FEBRUARY 17, 1923

REICH PATENT OFFICE

PATENT LETTERING

CLASS 20c GROUP

(D 4031η IIJ20c)

R. Dolberg, machine and field railway factory, Akt-Ges. in Hamburg.

Hopper wagons. Patented in the German Empire from! September 1921.

The invention relates to the closing devices for the flaps of self-unloading vehicles, which swiveled in in just one movement, i.e. without a preparatory closed position and then held in the locking position. The flap is equipped with a movable latch that can be used with the Closing behind an abutment jumps in, which is attached to a lever-like design Latch part is seated by the worker

a hand lever is to be moved. A toggle-like effect finds its movement Lever linkage application, so that there is a simple self-locking in the Closing position results.

In the drawing, an embodiment is shown in an end view. In the closed position is shown in solid lines; the linkage is dotted in the

ίο opening position shown.

The flap ν swings around its upper suspension point ζ and is in the closed position opposite the fixed inclined wall χ by a latch mounted on it in the frame I.

is held, which on a protruding part i ³ carries a roller k for reducing friction. The roller k engages in the section of a lever arm k which is rotatably mounted on the frame at q and which is connected to the frame at η at ti by two articulated links jf and g. The pivot pin e is connected by a short rod e to an arm d on the shaft b , the latter can be rotated by the hand lever a, which rests on the frame.

In the locked position, the pair of joints f and g form a toggle-like self-lock; the parts f and g are held in the position shown by the arm ⁵ h , which is under the load of the flap y or the roller k seated on its pawl i . Another security against accidental opening of the flap y is provided by the design of the bearing cavity h? created in the lever arm h for the role k , as illustrated in the figure. In order to bring the roller over the slightly protruding, rounded edge h ^s , a slight further closing movement of the flap y is initially required.

A special pawl lock is also expediently used to close the flap. This consists of a pawl p pivotably mounted at m ' on the lever arm h , the hook of which engages behind a nose i' on the pawl projection i ³ and is secured in its operative position by its lower leg acting as a counterweight. A nose in ^{FIG. 2 is} attached to the lower pawl limb which, in the closed position of the parts, is attached to a corresponding nose d? of the arm d sitting on the shaft b is applied.

If the hand lever α is pulled to open the flap y , the arm d and the connecting rod e will first! Knee joint f, g transferred to the extended position. ! During this first movement, the nose d ^s acts on the nose ^{2 of} the pawl m in such a way that it releases the pawl i on its nose at the top. As the hand lever α continues to move, the toggle lever /, g bends to the right until it merges into the dotted position m, ti. The lever arm h is pulled away under the roller k on the pawl i; when the roller k runs over the rounded edge h ^s , the pawl i swings to the right, with its deflection due to the protrusion that adjoins the space! jump i- is limited. The flap falls y '· After freeing her role Ii to their rotation \ points swinging down freely.

In the closed position of the flap; y bil-; det the line r, s (tangent of the circle after 2, p around s) perpendicular to the line z, p (the center point of the j roller k ) an acute angle with the straight line p, q. At q it is the folding. pen weight-absorbing lever arm h mounted; In this way there is still another security against the automatic ^! Opening the flap created.

Claims (2)

Patent Claims: i. Selbstentladewagen, which the shutter-locking in the closed position pawl to be moved by a lever linkage for the purpose of opening, while it is brought by the-settling in the closed position flap for ¹ latching, characterized in that the draw pawl (■ £) on the underside of the flap ( y) is swingably supported in a sitting on the latter frame (I) and in the settling of the flap in the detent (h ²⁾ of a through toggle linkage ^(e> f> S) i ⁿ secured the operative position, firmly mounted on the carriage frame (when q) one-armed Lever (K) collapses, while to open the flap the lever (h) is moved by folding the toggle lever (f, g) by means of the hand lever (es) under the pawl (i) . 2. Locking device according to claim 1, characterized in that the pawl (i) is particularly secured by a weight-loaded pawl (m) mounted on the lever arm (K) , which when the opening movement is initiated by a projection ( b) seated on the main shaft (b) d ² ) is disengaged. 1 sheet of drawings.