DE976770C - Record stacking axis to slow down the transport of records from the record storage pile to the turntable - Google Patents

Description

ISSUED APRIL 16, 1964

F 15327 IXa / 42 g

Heinz Weise, Munich

has been named as the inventor

The invention relates to a cranked stacking axis with a tiltable discharge nose, on the one hand in an elongated hole by a pin, on the other hand by a spring and pressure S is shifted sideways from below and controlled so that the pushing stack does not hit the discharge nose falls, but pushes it down to the axle base. With known cranked stacking axles In this way, the plate falls after pivoting the ejection nose along the stacking axis to the turntable or to the deposited stack. This is done by free fall many times the plates damaged. It is essential that several springs are assigned to this known stacking axis are, of which one in the tensioned state the weight of the one not yet thrown off Picks up the stack. The preload of the spring therefore depends on the weight or the number of stacked ones Plates off, which complicates the structure of the stacking axis.

In the case of straight stacking axes, it is also known to have longitudinally displaceable guides in the stacking axis. to arrange resilient supports in its upper end position with their upper ends in the Slits provided for the stack axis penetrate and serve to support the stack of plates. Within the space enclosed by the resilient supports is a rod which is also longitudinally displaceable provided, which is firmly connected to a cap, between the cap and a stack axis fixed flange elastic rings are arranged, which when moving down this

409 564/7

Rod fix the plates lying above the plate to be discarded in relation to the stacking axis. As soon as these upper plates are set, the resilient supports are lowering the The lower plate is drawn into the stacking axis, and the disc to be discarded then falls off freely. Should the The next plate is lowered, then the resilient supports are back in their upper end position to move upwards, they then lie in ίο the through the lower surface of the stack axis fixed Flange specified horizontal plane. With the following upward movement of the with the cap firmly connected rod, all panels of the stack fall by one panel thickness onto the end faces the protruding, resilient supports. So you need two independently of each other organs to be controlled.

Also known are stacking axles with resilient supports that are stationary with respect to height and are moved by the longitudinally displaceable sleeve of the stack axis perpendicular to this and at which above these supports a receiving shoulder kinematically equivalent to a cranked shoulder for asymmetrically supporting the stack lying above the disc to be discarded is provided. Here, too, the stack of plates falls when the next plate is lowered supposed to free down the thickness of one of the panels.

The invention is based on the object of catching the disc to be discarded when it is released from the stack and, as it moves further downwards, to lower it to part of the way to the plate before it can fall freely. This is achieved according to the invention in that three or more resilient supports (SF), known per se, are in their highest position with their upper ends at the height of the axis and when the release is initiated, lower the record to be discarded until the arms go into the interior the stacking axis are withdrawn so far that the plate can fall off. It has the advantage that the record does not hit in a hard case, but rather brakes and falls almost inaudibly onto the turntable or stack. As a result, the valuable and sensitive long-playing records are particularly protected. With the usual direct drive of the change mechanism by the turntable shaft, this delay in ejection is particularly evident at the slow speeds of 45 and 33V3 rpm.

The drawing shows an embodiment of the subject matter of the invention. It shows

Fig. Ι the stack axis as a whole, partly in section,

Fig. 2 in an enlarged view of its upper part and

Fig. 3 the working rod arranged in the stacking axis with the resilient supports.

An upper cranked part V is provided on a sleeve H. At the top of the sleeve H there is a window-like opening D ₁ , in which

the tiltable on the pin 5 "drop mass A is disposed upwardly with a slight clearance of about 3 mm. A return spring RF, which is fixed in the piece V, engages through the bore X 6 · the discharge nose, but with sufficient clearance that the Ejector nose A can be lifted up without moving sideways in pin S.

The release lug A is designed in such a way that it also acts as a deflecting lever when further pressure is applied from below. When pressed by the working rod M , it is lifted up, on the one hand it has a large amount of leeway in the elongated hole for the pin S and on the other hand is guided vertically by the return spring RF.

If the discharge nose has now reached the end of the bearing clearance as a result of the elongated hole as a result of the pressure from below, a further pressure of the push rod M upwards causes a tilting movement of the discharge nose (Fig. 3), which thereby moves the bottom plate of the stack so far shifts until the center hole of the plate lines up with the sleeve H , making the plate ready to fall off.

The falling of the detached plate is now prevented by the fact that the push rod M has three or more expansion springs SF distributed around the push rod M , which are attached to the side of the rod in grooves and are inclined outwards. These expanding springs are through the slots5 of the sleeve H to the outside. When the plate is released from the stack, they move upwards with it until they are directly below the disc to be discarded, and this is caught immediately after being released from the stack. The plate lies horizontally due to the same heights of the three springs and can now only sink by lowering the working rod M, which is positively controlled by the changing mechanism. It can also be kept standing still for a time at any height.

This rest position can be used to scan the edge of the record with the tonearm. Although this scanning is known, it is not caused by the arrangement according to the invention Rest position.

The further lowering of the plate on the expansion springs by the lowering of the push rod M now causes the expansion springs to be compressed through the end of the slot B. As soon as the expansion springs reach the lower edge of the slot, they move inward when the push rod M is further deep drawn and are at the complete path flush with the sleeve H so that the plate can now finally fall off or settle on the lower stack of plates.

Claims (4)

PATENT CLAIMS: i. Cranked stacking axis with tiltable discharge nose, which on the one hand in one Elongated hole with a pin, on the other hand with a spring and pressure from below on the side is moved and controlled so that the pushing stack does not hit the discharge nose falls, but this pushes down to the axis approach, characterized in that three or several known resilient supports (SF) are in their highest position with their upper ends at the level of the axis approach and lower the disc to be discarded when the discard is initiated until the arms are retracted so far into the interior of the stacking axis that the Plate can fall off. 2. Cranked stacking axis according to claim i, characterized in that the resilient supports (SF) are laterally fixedly connected to the working rod (M) , which has a small projection at its upper end for actuating the discharge nose. 3. Cranked stacking axis according to claim 1 or 2, characterized in that the upper, cranked part of the stacking axis (V) is beveled in its longitudinal direction and is covered by a sliding cap (Ü), which corresponds to the diameter of the plate bore, so that When removing the ao-fallen stack of records, the cap moves upwards over the fixed stacking axis so that the stack can be lifted up freely. 4. Cranked stacking axle according to one of claims 1 to 3, characterized in that the springs (SF) are temporarily held stationary between their two effective end positions during their lowering at any height. Considered publications:
British Patent Nos. 656 488, 643889; Swiss Patent No. 260 628;
German patent application 8606 VIIId / 42g; U.S. Patent Nos. 2,523,045, 2,604,325, 512,701; French patent specification No. 943 478. 1 sheet of drawings Ϊ 509 576/169 10.55 (409 564/7 4.64)