fig1 , 1 a , 1 b are a side view of a post hole digger with an automatic stationary - cleaning blades in three positions of operation . the auger digger 1 is in three relative positions to the soil surface : in position 14 the digger is lifted by the lifting arm 3 connected to the operating vehicle , above the soil surface . the stationary - cleaning blade 6 is at its cleaning position , cleaning mud and roots and other debris from the rotating auger digger 1 while the operating vehicle moves to the next digging spot . in position 14 a the auger digger is lowered by the arm 3 to touch the soil surface and the depth control wheel 8 moves backward to position 8 a . by moving backward the wheel &# 39 ; s arm 9 moves with the wheel 8 a to the new position 9 a . the wheel &# 39 ; s arm 9 is connected to the stationary - cleaning blade &# 39 ; s arm 7 by a connecting link 10 . by moving to position 9 a , the wheel &# 39 ; s arm pulls the blade &# 39 ; s arm 7 , via the link 10 a to its new position 7 a thus pulling the stationary blade 6 outside the auger flights 1 a to its position 6 a . at the end of the digging operation , the auger 1 is in its maximum depth under the soil surface 14 b . the wheel 8 b follows the soil surface and its arm 9 b and the stationary cleaning blade 6 b are above the soil surface . when lifting the post hole digger by the arm 3 , the stationary cleaning blade is back at its cleaning position 6 , cleaning mud and roots and other debris from the rotating auger 1 while the operating vehicle moves to the next digging spot . the wheel &# 39 ; s arm 9 and the blades arm 7 arm mounted on the main gearbox 2 of the post hole digger via bearings 12 and 11 and their base 13 . the auger digger 1 is mounted to the receiving shaft 5 of the gearbox 2 , which is powered by the vehicle engine , through a mechanical , hydraulical or electrical transmission ( not shown ) and the shaft 4 . fig2 is a perspective view of a rolling spot cultivator with two rolling cultivators in the same forward moving plane , with mud 23 and 23 a collected on its blades 24 and 24 a and shafts 18 and 18 a . the frame 21 is for mounting the rolling spot cultivator to the operating vehicle and the beam 22 is connecting the other parts to the frame . the wheel 16 is rotating the hollow shaft 15 via the chain 17 . the rolling gearbox 2 is connected to the hollow shaft 15 thus rotating by the wheel 16 . the power for the rolling cultivator shafts 18 and 18 a is transferred from the operating vehicle via the stationary gearbox 19 , the shaft 20 , running inside the hollow shaft 15 to the inlet shaft 4 ( not shown ) and the 90 degrees gears inside the rolling gearbox 2 . the vehicle moves forward thus rolling the rolling gearbox 2 forward by the wheel 15 , lowering one of the shafts 18 to penetrate the ground while the rotating blades 24 pulverize the soil around the shaft 18 . while rotating near , and in the soil the blades 24 accumulate mud and weeds 23 which interfere with the tilling operation . while one shaft 18 with its blades 24 till the soil downward , the other shaft 18 a with the accumulated mud 23 a is pointed upward free to be cleaned . fig3 is a rear view of a rolling spot cultivator shaft 18 in its upper position with two sets of tilling blades 24 and 25 and two stationary - cleaning blades 6 and 26 at its side in a cleaning position . the cleaning blades 6 and 26 are mounted on the blade &# 39 ; s arm 7 , which is held in the cleaning position by the mass 31 and a connecting mechanism . when the tilling shaft 18 moves upward , after tilling the soil , as the gearbox 2 is rolling , the mass 31 falls down and pushes the stationary - cleaning blades 6 and 26 into the cleaning position . the shaft 18 , mounted on the out going shaft 5 powered by the inlet shaft 4 via the gears inside the rolling gearbox 2 , is rotating and the stationary blades 6 and 26 cut the mud out from it . the mass 31 is mounted on arms 32 , which are connected to the stationary - blades &# 39 ; arm 7 via the pull arm 30 and the link 34 . the blade &# 39 ; s arm 7 is mounted to the base plate 13 via the bearings 11 . the arms of the mass 31 are mounted to the base plate 13 via the bearings 35 . the base plate 13 is connected to the side of the rolling gearbox 2 which is mounted on the rolling hollow shaft 15 ( not shown ), by the flange 29 , and rolls with it in a vertical plane forward . fig3 a is a cross section of fig3 showing the stationary - cleaning blade 6 in a cleaning position , cutting the accumulated mud 23 near the rotating cultivator blades 25 mounted on the rotating shaft 18 . the blade &# 39 ; s arm 7 is holding the stationary - cleaning blade 6 against the rotating mud 23 . fig4 is a side view of a rolling spot cultivator shaft 18 in its upper position with one stationary - cleaning blade 6 at its side in a cleaning position . the tilling blades 24 and 25 are rotating with the shaft 18 against the stationary blade 6 , which is held in place by the blade &# 39 ; s arm 7 . the blade &# 39 ; s arm 7 is mounted to the cleaning axle 37 on one side and a strengthening arm 36 is mounted on it on the other side . a second blade &# 39 ; s arm 7 a ( fig7 a ) can be mounted instead of the strengthening arm 36 . the cleaning axle 37 is mounted to the base plate 13 via the bearings 11 . the mass 31 is mounted downward on arms 32 , which are connected to the blades &# 39 ; arm 7 via the pull arm 30 , the outer mass &# 39 ; s arm 33 and the link 34 . the mass &# 39 ; s arms 32 are connected to the mass &# 39 ; s axle 38 , which is mounted to the base plate 13 via the bearings 35 . the outer mass &# 39 ; s arm 33 is mounted to the mass &# 39 ; s axle 38 and rotates with it and with the mass 31 . fig4 a is a cross section of fig4 showing the stationary - cleaning blade 6 mounted on the blade &# 39 ; s arm 7 in a cleaning position , cutting the accumulated mud 23 near the rotating cultivator blades 25 and the shaft 18 . fig5 is a rear view of a rolling spot cultivator shaft 18 in its digging position with one stationary - cleaning blade 6 at its side above the ground . as the gearbox 2 with the base plate 13 , both mounted on the hollow shaft 15 ( not shown here ) via the flange 29 rolls with the tilling shaft 18 downward , the mass 31 falls down . by falling down , the mass 31 pushes the pull arm 30 by the link 34 , which is connected to the outer mass &# 39 ; s arm 33 , and lifts the blade &# 39 ; s arm 7 and the stationary - blade 6 above the ground . thus the tilling shaft 18 and blades 24 and 25 , mounted on the outgoing shaft 5 , can till the soil by being powered through the inlet shaft 4 . fig6 is a rear view of two rolling spot cultivator shafts 18 and 18 a , one in its digging position 18 with one stationary - cleaning blade 6 at its side above the ground . the other cultivator shaft 18 a is in its upper position with one stationary - cleaning blades 6 a at its side in a cleaning position . the mass 31 is in its lower position lifting up the lower stationary - cleaning blade 6 and pushing the upper stationary - cleaning blade 6 a to the upper digging shaft 18 a to clean the mud . by moving forward the gearbox 2 with the digging shafts 18 and 18 a will roll with the rolling hollow shaft 15 as the flange 29 mounts it on it . the digging shafts 18 and 18 a rotate as the vehicle engine powers them by the transmission and the inlet shaft 4 . the base plate 13 rolls with the gearbox 2 thus letting the mass 31 to change positions by gravity , always lifting the lower stationary - cleaning blade 6 above the ground and pushing the upper stationary - cleaning blade 6 a to the rotating upper digging shaft 18 a . fig7 is a rear view of a rotating auger digger 1 with two auger flights 1 a , mounted on a rolling gearbox 2 in its upper position with stationary - cleaning blades 6 and 6 a at its side in a cleaning positions . each stationary - cleaning blade 6 and 6 a is cleaning one flight of the auger digger 1 . as the auger digger 1 rotates the auger flights 1 a push the stationary - cleaning blades 6 and 6 a downward sliding along their arms 7 and 7 a ( not seen ). the sliding base 39 is connected to a rod 41 with a spring 40 around it . the spring 40 is pressed by a plate 42 mounted on the pull arm 30 . the rod 41 protrudes through the plate 42 . the base plate 13 rolls with the gearbox 2 thus letting the mass 31 to change positions by gravity , always pushing the upper positioned stationary - cleaning blades 6 and 6 a to the rotating digging shaft 18 in its upper position to clean it . fig7 a is a cross section of fig7 showing two stationary - cleaning blades 6 and 6 a in cleaning positions , each one is mounted on a different parallel stationary - arm 7 and 7 a and cutting the accumulated mud at the rotating two auger flights 1 a . fig8 is a rear view of a rotating auger digger 1 mounted on a rolling gearbox 2 in its upper position with a stationary - cleaning blade 6 a at its side at the end of a cleaning operation , pushed outside the rotating auger flights 1 a by a curved rail 41 . there is also an alternative cam 44 to push the stationary - cleaning blade 6 a outside the rotating auger flights 1 a . in the cleaning operation , the stationary - cleaning blade 6 a is pushed by the rotating auger flights 1 a to their end . at that point the stationary - blade 6 a is pushed out of the rotating auger flights 1 a by a cam 44 or by the spring rod 41 as it slides along the curved rail 43 . by pushing the curved rail 43 , the rod 41 lifts the mass 31 half way up and pulls the stationary - blade 6 a with its arm 7 out of the rotating auger flights 1 a . the spring 40 slides back the stationary - blade 6 a and the sliding base 39 to be in another cleaning operation , unless the gearbox 2 rolls down and the falling mass 31 will pull the stationary - blade 6 a above the ground . fig8 a is a cross section of fig8 showing the cleaning blade 6 in a cleaning position and cleaning blade 6 a outside the auger flight 1 a . there is also an alternative cam 44 to push the stationary - cleaning blade 6 a outside the auger flights 1 a . fig9 is a rear view of two rotating auger diggers 1 and 1 b mounted on a rolling gearbox 2 . one rotating digger 1 is in its digging position with one stationary - cleaning blade 6 at its side above the ground and the other 1 b in its upper position with a stationary - cleaning blade 6 a at its side in a cleaning position . the mass 31 is in its lower position lifting up the lower stationary - cleaning blade 6 and pushing the upper stationary - cleaning blade 6 a to the upper rotating auger digger 1 b to clean the mud . by moving forward the gearbox 2 with the auger diggers 1 and 1 b will roll with the rolling hollow shaft 15 as the flange 29 is mounted on it . the auger diggers 1 and 1 b rotate as the vehicle engine powers them by the transmission and the inlet shaft 4 . the lower rotating auger 1 penetrates the soil to dig the clean hole , while the upper rotating digger 1 b is being cleaned . the base plate 13 rolls with the gearbox 2 thus letting the mass 31 to change positions by gravity , always lifting the lower stationary - cleaning blade 6 above the ground and pushing the upper stationary - cleaning blade 6 a to the rotating upper auger digger 1 a . the curved rails 43 and 43 a are for pushing the cleaning blade 6 or 6 a out of the digger flights 1 a as was explained earlier . fig1 is a rear view of two rotating spot cultivator shafts 18 and 18 a . shaft 18 is in its digging position and shaft 18 a is in its upper position , both of them with stationary sleeves 45 and 45 a around the cultivating shafts and one set of rotating cultivating blades 24 and 24 a at each of their ends . the sleeves 45 and 45 a are connected to the gearbox 2 by bolts 47 and 47 a to prevent them from rotating with the cultivator shafts 18 and 18 a . on their other side the sleeves 45 and 45 a are connected to the bearing housings 46 and 46 a . the bearings allow the cultivator shafts 18 and 18 a to rotate while the sleeves 45 and 45 a prevent the build - up of mud around the shafts while they are cultivating the soil in their downward position . for assembling , the two sets of the cultivating blades 24 and 24 a are mounted to the shafts 18 and 18 a after mounting the sleeves 45 and 45 a to their place with the bearings 46 and 46 a . in order to secure the blades 24 and 24 a to the shafts 18 and 18 a , hollow pins 48 and 48 a are pushed inside them after mounting . fig1 is a rear view of two spot cultivator shafts 18 and 18 a . shaft 18 is in its digging position and shaft 18 a is in its upper position , both of them with stationary sleeves 45 and 45 a around the cultivating shafts and two sets of cultivating blades at their ends at different depths 24 and 25 on shaft 18 and 24 a and 25 a on shaft 18 a . the sleeves 45 and 45 a are connected to the gearbox 2 by bolts 47 and 47 a to prevent them from rotating with the cultivator shafts 18 and 18 a . on their other side the sleeves 45 and 45 a are connected to the bearing housings 46 and 46 a . the bearings allow the cultivator shafts 18 and 18 a to rotate while the stationary - sleeves 45 and 45 a prevent the build - up of mud around the shafts above the blades 25 and 25 a while they are cultivating the soil in their downward position . for assembling , the two sets of the cultivating blades 24 with 25 and 24 a with 25 a are mounted to the shafts 18 and 18 a after mounting the sleeves 45 and 45 a to their place with the bearings 46 and 46 a . in order to secure the blades 24 with 25 and 24 a with 25 a to the shafts 18 and 18 a , hollow pins 48 and 48 a are pushed inside them after mounting . fig1 is a rear view of two rotating spot cultivator shafts 18 and 18 a . shaft 8 is in its digging position with its stationary - cleaning blade 6 above the ground . shaft 18 a is in its upper position with its stationary - cleaning blade 6 a in a cleaning position , both of them with stationary sleeves 45 and 45 a around the cultivating shafts 18 and 18 a and one set of cultivating blades 24 and 24 a at their ends . the mass 31 is downward , lifting the stationary - cleaning blade 6 above the ground and pushing the stationary - cleaning blade 6 a to clean the blades 24 a . fig1 is a rear view of two rotating spot cultivator shafts 18 and 18 a . shaft 18 is in its digging position with its cleaning blade 6 above the ground . shaft 18 a is in its upper position with its stationary - cleaning blade 6 a in a cleaning position . the rotating cultivating shafts 18 and 18 a are covered with stationary sleeves 45 and 45 a around them . two sets of cultivating blades are mounted at the ends of the rotating shafts at different depths 24 and 25 on shaft 18 and 24 a and 25 a on shaft 18 a . the mass 31 is downward , lifting the stationary - cleaning blade 6 above the ground and pushing the stationary - cleaning blade 6 a to clean the blades 24 a and 25 a . fig1 is a rear view of a spot cultivator shaft mounted on a rolling gearbox 2 , in its rotating digging position with two sets of blades 24 and 25 . the upper set of blades 25 is rotating in one direction while the lower set of blades 24 is rotating to the other direction . the hollow shaft 51 above the upper set of blades 25 is covered with a stationary sleeve 45 around it . the in - corning shaft 4 by its pinion is rotating two gears , one of them 57 in one direction , and the other one 58 in the counter direction . the flange 29 is mounted to the rolling hollow shaft 15 , thus rolling the gearbox 2 with the hollow shaft in a vertical plane forward . the gear wheel 57 is connected to the hollow shaft 55 and rotates it in one direction , and gear wheel 58 is connected to the inner shaft 52 and rotates it to the counter direction while being held by the bearing 59 . the hollow shaft 51 is mounted to the hollow shaft 55 by flanges 54 to rotate with it . the upper set of blades 25 is mounted to the hollow shaft 51 by the hollow pins 48 b around it and rotates with it in one direction . the stationary sleeve 45 is mounted to the rolling gearbox 2 by bolts 47 and connected at its other lower end to the bearing housing 46 . the inner shaft 56 is mounted to the inner shaft 52 and secured by the hollow pin 48 a , to rotate with it . the lower set of blades 24 is mounted to the inner shaft 56 and secured to it by the hollow pin 48 , and rotates with it in the counter direction to the upper set of blades 25 , thus preventing the mud from accumulating between them . fig1 is a rear view of an auger digger 49 mounted on a rolling gearbox 2 , in it &# 39 ; s digging position . the auger digger 49 comprises an auger flights 49 a and blades 50 . the auger flights 49 a are rotating in one direction while the lower set of blades 50 is rotating to the other direction . the in - coming shaft 4 by its pinion is rotating two gears , one of them 57 in one direction , and the other one 58 in the counter direction . the flange 29 is mounted to the rolling hollow shaft 15 ( not shown here ), thus rolling the gearbox 2 with the hollow shaft 51 with the auger flights 49 a on it in a vertical plane forward . the gear wheel 57 is connected to the hollow shaft 55 and rotates it in one direction , and gear wheel 58 is connected to the inner shaft 52 and rotates it to the counter direction while being held by the bearing 59 . the hollow shaft 51 is mounted to the hollow shaft 55 by flanges 54 to rotate with it . the auger flights 49 a are welded to the hollow shaft 51 and rotate with it in one direction . the inner shaft 56 is mounted to the inner shaft 52 and secured by the hollow pin 48 a , to rotate with it . the lower set of cutting blades 50 is mounted to the inner shaft 56 and secured to it by the hollow pin 48 , to rotate with it in the counter direction to the upper auger flights 49 a . the lower set of cutting blades 50 is cutting and pulverizing the soil while the upper auger flights 49 a , rotating to the other direction , prevent the accumulation of mud and lift the pulverized soil out from the hole . fig1 is a side view of a post hole digger with an automatic cleaning blades in three positions of operation . the auger flights 49 a are rotating in one direction while the lower set of blades 50 is rotating to the other direction . the counter rotation effect is explained in fig1 . the automatic stationary cleaning blades system is explained in fig1 . the words “ mud ” and soil are used herein substantially interchangeable ; both contain some water , with mud being soil containing a relatively larger amount of water which generally makes it more adherent to tool surfaces .
a travelling rolling digger for sequential hole drilling or for producing sequential cultivated spots in soil . the travelling rolling digger includes at least one drilling shaft which is rotatable by a drive mechanism about a longitudinal shaft axis and has a rotating soil penetrating edge . the drilling shaft is mounted to roll about a horizontal shaft in a soil penetrating plane while the horizontal shaft moves in a direction of travel of the traveling rolling digger . the rotating drilling shaft enters the soil at an entry angle and digs into the soil while the horizontal shaft moves in the direction of travel and the drilling shaft continuously changes its angle relative to the soil from the entry angle to a vertical position . the traveling rolling digger further comprising at least one cleaning blade .