DE1447408C - Arrangement for the optional, controllable transmission of a drive movement to the lowerable and liftable stacking bases of a document sorting machine - Google Patents

Description

Actuator 12 designed as a lifting magnet, in such a way that when it is excited, the plunger 12 'this arm to the left (Fig. 1) and thus the intermediate gear9 brings into frictional engagement with the shaft 1 while lifting from the brake pad.

There is a transfer of motion in both for the optional lowering and lifting of the stacking floors Directions, and preferably at different speeds, is also required - in the Drawing not shown - control device provided, which on the one hand for transmitting a drive movement to a certain stack base actuated the actuator 12 of the transfer point in question and, on the other hand, accordingly the direction of rotation and speed required for the drive movement are the same Drive motor controls. The drive motor can, for example, be designed as a pole-changing electric motor that runs at double the speed to raise the stacking bases ίο.

1 sheet of drawings

Claims (5)

1 2 th, toothed ratchet wheel cooperates. The patent claims: thread spindle attacks the relevant stacking base. The engagement between the cam and the 1. Arrangement for optional, controllable roller is through mechanical controls Transferring a drive movement to a 5 every time then and for as long as the dem Large number of juxtaposed lowering stacking floors associated with each other are opened 'Able and liftable stacking shelves one is occupied. Each mail item passing through has a switching sorting machine in which a common control step of the switching wheel and thus, via the threaded drive motor and a spindle driven by this, lowering the shelf by one bene result in a predetermined amount carried past all transfer points. The repatriation common shaft is provided, as a result of which the stacking bottoms are in the starting position characterized that at each transmission not over the threaded spindle, but jerkily supply point a chain wheel (4) with a return spring on the stack by means of a return spring. ■ ground attacking transmission chain (6), a The stated arrangement is not suitable for sorting machines with the chain wheel connected drive pulley (5) 15 with high sorting performance, because with a to the common shaft (1) parallel axis switching frequency of z. B. 20 switching steps per and an intermediate wheel (9) is provided, which the wear and the noise on the one hand continuously with the second. Drive pulley (5) would be too big. It also has the disadvantage that there is frictional engagement and, on the other hand, due to the extent of the lowering movement, does not depend on the actual actuator (12) either with the common 20 union height of the stack, but rigidly with the shaft or with a braking element (11) in Rei - the number of stacked mail items is linked. bungseetriff can be brought, and that a control Finally, the known stacking base drive is only available for transferring. can be used for lowering, but not also for the return of a drive movement to a stacking shelf guide of the stacking shelves,
the actuator (12) of the relevant 25 The invention is based on the object of actuating a transfer point and, according to the arrangement of the type mentioned at the outset, creating rotation required for the drive movement, which avoids the aforementioned shortcomings, and controls the common drive motor in the direction. The features of the arrangement according to the invention 2. Arrangement according to claim 1, characterized in that one at each transfer point indicates that the intermediate wheel (9) on a 30 chain wheel with one engaging the bottom of the stack around the axle bolt (3) of the drive pulley (5) transmission chain, one of which can be swiveled with the sprocket mounted lever (7) is attached. dene drive pulley with to the common shaft 3. Arrangement according to claim 1 or 2, since the parallel axis and an intermediate wheel are provided characterized in that the actuator (12) is one which, on the one hand, is permanently connected to the drive pulley Serves lifting magnet, which the intermediate wheel (9) is in frictional engagement and on the other hand through a against the action of the spring force of a tension spring actuator either with the common shaft or (10) can be brought into frictional engagement with a braking element from the braked to the driven position ment brings. is, and that a control device is present which 4. Arrangement according to claim 3, gekennzeich- _ZU m transferring a drive movement to a net by a direction of action of the spring force 40 stack bottom the actuator of the possible tension spring (10) such that the intermediate gear (9) actuates the transfer point and according to the for through when pressed against the drive pulley (5), it controls the direction of rotation required as well as against the braking element (11) and controls the common drive motor. will. The drawing shows a single, in the sense 5. The arrangement as claimed in claim 1, characterized in that a transmission point embodied in the invention is a indicates that. the control device next to the document sorting machine, namely in the direction of rotation also the speed of the F i g. 1 in side view and in common drive motor controls. Fig. 2 partially in section corresponding to the Line H-II.
50 The one passed by all transfer points common shaft is denoted by 1. The single ones Components of the transfer point are supported by a plate 2 connected to the machine frame. The invention relates to an arrangement for carrying. On an axle pin 3, a sprocket 4 is optionally, controllable transmission of a drive 55 and a drive pulley S connected to it to a large number of rotatably mounted side by side. A transfer chain 6, which is only hinted at in the orderly lowerable and liftable stacking floor drawing, runs around the sprocket, that of a document sorting machine in which a common one engages the liftable and lowerable stacking floor. A controllable drive motor and a two-armed lever 7 attached to it is pivotably mounted with its elongated hole T around the axle bolt 3, which is driven 60 past all transmission points. He is provided on common shaft. his upper arm the axle pin 8 one with a In a known arrangement of this type, friction lining is provided, with friction gear transmissions the common shaft is continuously driven and carries the known intermediate gear 9. At "its lower at each transfer point an axially acting arm engages a tension spring 10, namely in such Cam, with the one on a pivot lever 65 direction that the intermediate gear 9 thereby both bearing roller can be brought into engagement. against the drive pulley 5 as well as against one as The pivot lever carries a pawl which is pressed with the brake element 11 serving block. on a lower arm of the lever 7, which is fastened to a vertical threaded spindle, also acts as a