DE1062473B - Device for preventing imperfections in potato planting machines with rotating separation cells - Google Patents

Description

GERMAN

PATENT OFFICE

kl. 45 b 9/00

INTERNAT. KL. A 01 C

EXPLAINING PUBLICATION 1062 473

A & 4C 9 (002

T11157III / 45b

REGISTRATION DATE: JULY 18, 1955

NOTICE
THE REGISTRATION
AND ISSUE OF THE
EDITORIAL: JULY 30, 1959

In the case of potato planting machines that automatically feed the rotating cells of a laying wheel or the gripper of a bucket elevator that forms the separation cells work, it happens that the charging for a cell coming from a main container surrounding the path of the laying organ or a gripper happens to be omitted.

In order to eliminate this deficiency, it is known to use a test device to separate the cells to be scanned and, in the case of an empty cell, to cause a potato to be dispensed from a rotating reserve container.

In one of the known designs, the test probes are arranged on a rotating shaft next to the path of unslotted cells or buckets of the bucket elevator. The lever mechanism of the device carries out pivoting movements, but the pivoting movements of the buttons must be controlled by a slide, which must necessarily be open and unprotected at least on one side; the drive for the buttons is derived from the shaft of the upper sprocket of the bucket elevator. Furthermore, as a forward stop for the reserve container, a pin which can be axially displaced in a link and which engages between the teeth of the ratchet wheel with each switching step is required.

The use of an open, unprotected sliding guide and a link control leads to agricultural machinery premature wear and tear due to the effects of dust and dirt, causing malfunctions result. The invention therefore aims at not only the actual levers of the control device, as in the known device, but all for the tactile movement as well as for the Reserve container controlling lever system required parts only perform swiveling movements in order to avoid the aforementioned inconveniences of sliding and link guides and all bearing points to be able to encapsulate completely against dust and dirt.

For this purpose, the invention is based on a known embodiment, in which the circumferential separation cells have a slot so that, when they are unfilled, a button engaging in the area of these slots and pivotably mounted on the machine frame remains in its standby position and thereby pivots a allows the feed movement of a reserve container controlling lever mechanism by allowing a driver provided on the lever mechanism to remain in the orbit of one or more cams rotating with the separating cells, while when the button is lifted through a potato covering the slot in the separating cells, the driver device
to prevent imperfections

for potato planters
with circumferential separation cells

Applicant:
AJ Tröster, Butzbach (Hess.)

Claimed priority;

Exhibition at the opened on May 15, 1955.
43rd touring exhibition of the German Agricultural Society in Munich

Otto Weitz, Butzbach (Hess.),
has been named as the inventor

is lifted out of the orbit of the cam.

In the aforementioned known embodiment, the button engages a lever carrying the driver on, which is pivotably mounted on a push rod, which in turn is in link guides in its longitudinal direction is arranged displaceably. When taking the driver lever through one of the above Cam, the driver lever must slide together with the push rod in the link guides execute, through which the push rod a switching lever of the stepping mechanism articulated to it of the reserve tank controls. After this switching step, the parts are in pushed back the starting position. As a result of this longitudinal displacement of the parts, there must also be the driver lever performs a reciprocating movement in its longitudinal direction, the end of the controlling it Push button can perform a sliding movement on the driver lever. Both the backdrop tours of the Push rod as well as the guidance of the control end of the button on the driver lever are cumbersome and in particular exposed to pollution, with each reciprocating movement of the parts new particles of dirt brings between the touching surfaces. As a result, there is rapid wear on these surfaces and thus a susceptibility to failure, whereby it should be noted that the button due to the sensitivity of the potatoes controlling it, they can only be operated with low control forces can.

3 4

To avoid this. The earth of the preceding gripper 2 creates inconveniences and is on this

Finding a control, carried in the longitudinal displacement movement down to the end of the shaft, where

movements of the control links and unprotected sliding guides when the chain is redirected freely into the

ments are avoided. Plant trough falls.

According to the invention, both the button and 5 will cause vibrations and other circumstances

the lever mechanism controlling the reserve container, both occasionally causes one of the grippers at

at the storage points as well as at the coupling points passage through the main container remains empty. this

only swivel movements from; in doing so, inventions are made by the scanning test described below

according to the button a part of the lever mechanism, device determined.

by moving the feeler roller from one on the machine frame to one rotatably mounted in the machine frame pivotably mounted handlebar is carried and with axis 7 is loosely a bracket 8 is pivotably arranged, A scanning roller 9 can be rotated by means of a second link on a third, the middle on the lower bracket arm taker carrying handlebar is hinged, which in turn carries. The weight of this roll and the hanger that an articulated to him, on the machine together form a button, seeks the bracket 8 in frame pivoted fourth link at 15 to pivot clockwise about axis 7. These Controls feed movement. The last-mentioned fourth pivoting movement is generally limited, Handlebar remains at rest during the tactile movement, while if one is described in more detail below During the feed movement, the first link remains on a cam, which is controlled by the button, disc 12 is in place and the button is ready for

Since only pivoting movements of the handlebars against one another assume the shaft position. If the gripper 2 carries a

other occur, can for connection and position potato 5, so the bracket 8 is developed over the roller 9

tion of the handlebars, and thus all control parts, pivoted counterclockwise, and the

bearings are used, the pollution and nose 10 comes from the area of the cam 12 a of

premature wear are not exposed and the cam plate 12 out, d. i.e., the button leaves the

bring a constructive simplification. 35 Stand-by position.

Link guides and sliding guides that are susceptible to wear but if the gripper 2 has not grasped a potato, so

against are avoided. the feeler roller 9 engages in a slot 15 of the gripper 2

The pivoting movement of the last-mentioned fourth one, so that the bracket 8 does not pivot upwards,

Handlebar can in a preferred embodiment of the d. i.e. the button remains in its ready position

Invention can be used to the fact that he is not only 30 ment and lets the gripper 2 wander past him.

the advance of the ratchet wheel of the reserve container, with an arm 13 a of the bracket 8 is a whole

but at the same time also the pivoting movement of a coupling indicated at 13 pivotally connected to the

, controls its axis seated stop lever, which with handlebars 13 & and 13 c and 11 a four-bar linkage

i a swivel mounted on the frame, under spring forms. This paddock extends in one to the plane

action standing pawl cooperates, the 35 of the bracket 8 vertical plane down, and their

while engaging am.Schaltrad whose feed handlebars 13 b, 13 c are in this plane against the

ι each limited to one shift step. Force of a tension spring 23 pivotable, one of which

In the drawing, an embodiment of the invention is the end with the handlebar 13 c and the other end

shown for the preferred case that the laying is firmly connected to the frame.

organ from one of the separation cells or grippers 40. The link 11 is provided with the aforementioned nose 10

passing through the main container, um- provided that on the shaft 4 is stuck

running chain exists; however, the invention cam 12 rests as long as the feeler roller 9 does not

correspondingly corresponding to such automatic Kar- with a potato 5 comes into contact. Stay in

Pot-laying machines are used in which the gripper is empty after it has passed through the main container,

Laying organ is a rotating cellular wheel. 45 so the nose 10, as already mentioned, remains in the

The drawing shows schematically the inventive track of one of the cams 12a, which together with

according device, with the in different, to the upper sprocket 3 counterclockwise-

mutually inclined or perpendicular planes, d. H. i.e. in the range indicated on sprocket 3

Parts shown in simplified form in the plane of the drawing are given arrow direction, circulate. This will make the

and the frame and the lower part of the potato handlebars 11 moved in the direction of the arrow, d. H. the

laying machine below the upper sprocket of the coupling 13 5, 11, 13 c counterclockwise

Bucket elevator are omitted. The isolating force of the spring 23 is pivoted.

The organ of the potato planting machine consists of an endless chain 1 firmly connected to the link 13 c of the coupling 13, which is an angle lever 14 with the axis 7 as separating cells and a pawl 16 is hinged to the pre-slotted gripper 2 on, for example, every fourth arm 55 whose limb carries. The upper end of the rear end which is free in this way by means of a tension spring 17 is formed against the bucket elevator runs over an upper chain, the link 13c is pulled towards. The front end wheel 3, which is driven in a manner not shown by one of the longer, actual Klinkeiiarmes can be mounted in a chassis shaft 4, the gaps of a ratchet wheel 18, which in turn engages the drive of the wheels of the 60 one to the plane of the drawing vertical plane firmly on the machine. The chain 1 occurs with its grips on a vertical shaft 19 which is mounted on the remote machine 2 in a known manner by a lock. Firmly on the upper end of the shaft 19, not shown in the drawing, sits a reserve container 20, the cells of which are located to the right of the chain 1 and receive a reserve potato 21, which are manually filled, generally with each of the grippers 65 can be inserted. As shown, a potato 5 remains at the beginning of the passage upwards. During the laying process, a cell is exposed which is located above the upper chain at the bottom of the reserve container, which is located above the shaft 6 The cells are dug up to the bottom of the reserve container 20 in the shaft 6 on the back 70 open so that when the cell compartment is advanced

I I 5f

counterclockwise to the division corresponding to a cell a reserve potato 21 over the Manhole opening and through the manhole on the back of a gripper 2 and then into the plant trough falls.

This switching takes place in the manner indicated by the pawl 16 when the angle lever 14 starting from the coupling 13 is actuated.

When the nose 10 is advanced by one of the cams 12 a, the longitudinal movement ίο reaches the end of the handlebar 11 in the indicated arrow direction whose extended end 22 on the outside of the Cam 12 a and thereby brings the nose 10 out of engagement with the cam after the end of thrust.

Now enters the tension spring 23 in activity and exerts on the link 13 and a counterclockwise torque, so that the guide rod is returned to the starting position 11, in which the arm 13 b rests against a frame-fixed stop 24th

In order to prevent that during the control movement of the pawl 16, the ratchet 18 over the desired, the Division of the reserve container 20 runs out corresponding switching step, is a further two-armed pawl

25 pivotally mounted on the machine frame. It is under the action of a compression spring 26 which trying to give it a counterclockwise torque. In the position shown is the one arm of the pawl 25 under the pressure of the spring

26 to a stop lever 26 which is firmly seated on the axis 7, so that the other arm of the pawl 25 remains out of engagement with the ratchet 18. At the beginning of the control movement for the advance of the ratchet wheel, ie when the nose 10 engages and the handlebar 11 moves longitudinally and the angle lever 14 and the pawl 16 connected to it are pivoted clockwise, the stop lever 27 controlled by the handlebar 13 c via the axis 7 the pawl 25 free, which then sits down on the next tooth 28 of the ratchet 18 under the action of the spring 26. In the further course of the forward thrust movement of the ratchet wheel, the pawl 25 engages in the next tooth gap 29 and thus prevents the ratchet wheel and thus the reserve container from being indexed by more than one division of the ratchet wheel gaps 29.

After completion of this advance, the spring 23 causes in the manner already mentioned a rotation of the link 13 c counterclockwise, so that with this via the axis 7 and the stop lever

27 pivots back and brings the pawl 25 out of engagement with the ratchet wheel. That by the pen, 23 caused torque is so great that the relatively small force on the angle lever 14 engaging spring 26 is overcome. The respective switching position of the reserve container 20 is .j by a locking device known per se, e.g. a ij spring-loaded ball engagement until the next switching operation, e.g. B. against vibrations, secured.

Claims (2)

Patent claims: 1. Device for preventing defects in potato machines with circumferential separating cells which have a slot, so that when the separating cells are unfilled, a button that engages in the area of these slots and is pivotably mounted on the machine frame remains in its ready position and thereby pivots movements of a lever mechanism controlling the feed movement of a reserve container allows a driver provided on the lever mechanism to remain in the orbit of one or more cams rotating with the separating cells, while when the button is lifted the driver is lifted out of the orbit of the cams by a potato covering the slot in the separating cell, characterized in that that both the button (8, 9) and the lever mechanism (13) controlling the reserve container, both at the bearing points and at the coupling points, only perform pivoting movements, the button (8, 9) being part of the lever mechanism kes (13) is formed by the feeler roller (9) being carried by a link (13 a) pivotably mounted on the machine frame and articulated by means of a second link (13 V) to a third link (11) carrying the driver (10) , which in turn controls an articulated fourth link (13 c), which is pivotably mounted on the machine frame and is connected to it, during the feed movement, which remains at rest during the tactile movement, while the first link (13 a) remains at rest during the feed movement. 2. Apparatus according to claim 1, characterized in that the fourth link (13 c) at its pivoting movement not only the advance of the ratchet wheel (18) of the reserve container, but at the same time also the pivoting movement of a stop lever (27) sitting on its axis (7) controls, which is under the action of a spring (26) with a pivotably mounted on the frame The pawl (25) works together, which by engaging on the ratchet wheel (18) its advance in each case limited to one switching step. Considered publications:
German Patent No. 524 037;
German utility model No. 1 678 590. 1 sheet of drawings © 909 579/36 7.59