DE961800C - Switching device for the step-by-step adjustment of brush body carriers on brush body drilling and tamping machines - Google Patents

Description

ISSUED APRIL 11, 1957

NS i8iopIII / pa

The invention relates to a switching device for the gradual adjustment of Brush body carriers on brush body drilling and tamping machines of the special design, at weleher the adjustment of the brush body is controlled by a switch band that moves jerkily Latch mechanism takes place.

The ratchet mechanism, which essentially consists of a ratchet wheel and a swivel ίο movement executing pawl is operated by control pins in a box are housed and execute a movement perpendicular to the switching band path. Finds the tax pin one of the openings made in the switching band, it reaches the latch and brings it this in engagement with the ratchet wheel, which transmits this movement to the brush body support.

In the known switching devices of this type, the switching band is in the direction of the pivoting movement of the individual pawls equipped with pawl tails. To achieve a In this case, several pawls are parallel in a certain division of the hole spacing of the brush body carrier arranged side by side. In consideration of the more complicated with the increasing number of pawls Construction can be arranged a maximum of four pawls next to each other, so that · with machines

of this type only brush ^{body supports with 1} U division of the hole spacing can be produced. It is therefore not possible to manufacture set brush types that require a smaller pitch. This type of brush could only be produced by using cams, which, however, - apart from their expensive production - have the disadvantage that they significantly increase the size of the machine and ίο that a special cam with the corresponding curve must be kept in stock for each type of brush.

The invention provides a switching device for brush body drilling and tamping machines of the type described above, with which it is now possible ^{to produce brushes, both parallel and set, with a hole spacing of less than 1} A pitch.

The switching device according to the invention is characterized by a switching band, the transport device of which runs ^{at 90 ° to the pivot plane of the pawls.} As a result, it is now possible to arrange a larger number of pins in the direction of the pivoting movement of the pawls, which do not have tails, and thus to produce brush types of every division that is possible in practice. With regard to the pivoting movement of the pawls, the length of the pins must adapt to the respective position in relation to the radius, ie they must decrease to the lowest point of the pivoting movement of the pawl.

According to a particular embodiment of the invention is in a known manner below the The strip of the switch box, which contains the guide pins equipped with a return spring, those located above the switching strip, in a switch box coaxial with the guide pins arranged, provided with return spring control pins act for the actuation of the pawls.

Further details and features of the invention emerge from the drawing, in which an example embodiment is shown in more detail.

Fig. Ι shows the subject of the invention in elevation; Fig. 2 shows the subject matter of the invention in a perspective view.

With ι the switching band is referred to, which the Contains holes or openings 2. Below this switching band is the switch box 3 for the with Return spring provided guide pins 5 arranged. The control box 3 is by means of one in one Guide sleeve 8 guided guide rod 7 moved up and down. The drive for this movement is not shown. Meet the guide pins 5 as they move up and down opening in the band 2, then this relevant guide pin strikes up to the corresponding pin 9 of the switch box 4 arranged above the belt 1 and pushes it against the constantly and here swinging pawl 10, which, depending on which control pin has been actuated, on the corresponding one Place of the ratchet wheel 11 engages, whereby this engages the wheel 13 via a gear wheel 12 moved to which a rod 14 is articulated, which transmits the movement to the brush body 26. The entire lever mechanism controlled by the rod 14 is only shown in sketch form. The control pins 9 are also equipped with a return spring.

The pawl 15 moves the ratchet wheel x6 in a clockwise direction, whereas the pawl 10 moves the ratchet wheel 11 counterclockwise. That way, with proper control of the control pins, it is 9 by the switching band 1 possible that the brush body 26 adjusted by the rod 14 is rotated jerkily about the axis 17. The pawls are driven by the joints 18 and 19th

For the adjustment movement of the brush body carrier about a vertical axis 17 are therefore two ratchet wheels 11 and 16 with opposite Directional toothing necessary for the back and forth movement.

So that the brush body can also be pivoted about a horizontal axis, the clincher wheels 20 and 21 are necessary, soft are designed exactly like the ratchet wheels π and 16 and soft also two mutually oscillating Have pawls 22 (the other is not visible). The ratchet wheels 20 and 21 are also used by switch boxes 3 and 4 the intermediate switching band 1 controlled in the same way as the ratchet wheels ϊ ι and 16 are moved. The ratchet wheels 20 and 21 transmit their movement via a gear the wheel 23, on which a rod 25 is articulated at point 24, soft, as shown schematically is, the movement via a lever mechanism on the brush body carrier 26 transmits.

Claims (5)

PATENT CLAIMS: 1. Switching device for the gradual adjustment of brush body carriers on brush body drilling and / or tamping machines, in which the adjustment of the brush body is carried out by a ratchet mechanism controlled by a switching band, characterized by a switching band (1) whose transport direction is below 90 ⁰ to the swivel plane Pawls (10, 15, 22). 2. Apparatus according to claim i, characterized by a switch box arranged in a known manner below the belt (1) (3), which carries the guide pins (5) equipped with a return spring, and one above the switch band (1) located switch box (4), which is the coaxial to the guide pins (5) arranged, provided with return spring control pins (9) contains. 3. Apparatus according to claim 1, characterized by one arranged on an axis Ratchet wheel pair (11 and 16) for moving the brush body carrier (26) by a lower 961 8OC right axis (17) and by one on the same axis as the first-mentioned ratchet wheel pair (11, 16) arranged ratchet wheel pair (20 and 21) for moving the brush body (26) around a horizontal axis. 4. Apparatus according to claim 1, characterized by each pair of ratchet wheels (11, 16 and 20, 21) associated pawls (15, 10 and 22) oscillating in opposite directions. 5. Apparatus according to claim 1, characterized in that the movements of the ratchet wheels Via gear wheels (12, 13 or 23) and a linkage (14 or 25) on the brush body carrier (26) are transferred. Considered publications:
German patent specification No. 709 852. 1 sheet of drawings © 609 657/7 10. (609 855 4. 57)