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Patent Searching and Data


Title:
MULTIPLE DRILL ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2020/023994
Kind Code:
A1
Abstract:
A multiple drill assembly (10) comprises a mounting means (12), a carrier (14) and a connection means (16) between the mounting means (1)2 and the carrier (14). The carrier (14) comprises an elongated body (20) which carries multiple drill machines (22) thereon in a spaced manner. The drills (22) are arranged to be parallel to each other along the length of the body (20) for drilling multiple parallel holes simultaneously into a fence post.

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Inventors:
MCGHEE JAMES ANDREW (AU)
Application Number:
PCT/AU2019/000092
Publication Date:
February 06, 2020
Filing Date:
July 31, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MCGHEE JAMES ANDREW (AU)
International Classes:
B23B39/16; B23B41/00; B27C3/00; E21B7/02
Foreign References:
US20100272528A12010-10-28
US4915549A1990-04-10
US20170165763A12017-06-15
EP2272643A12011-01-12
GB2196276A1988-04-27
US9834950B22017-12-05
US9797159B22017-10-24
US3625483A1971-12-07
Attorney, Agent or Firm:
PROTECTMYIDEA.COM. AU (AU)
Download PDF:
Claims:
Claims

The claims defining the invention are as follows:

1 . A multiple drill assembly comprising:

a mounting means for mounting the assembly to a vehicle or structure,

a carrier which carries multiple drills thereon in a spaced manner, and

a connection means between the mounting means and the carrier.

2. The assembly of claim 1 wherein the carrier comprises an elongated body which carries the multiple drills therealong.

3. The assembly of claim 2 wherein the drills are arranged to be parallel to each other along the length of the body for drilling multiple parallel holes simultaneously.

4. The assembly of claim 2 wherein the drills are arranged along a line.

5. The assembly of claim 1 wherein the carrier includes an automatic self-levelling system with sensor.

6. The assembly of claim 1 wherein the distances between adjacent drills along the carrier are adjustable.

7. The assembly of claim 1 wherein the relative positions between the drills along the carrier are adjustable.

8. The assembly of claim 6 wherein the drills are mounted in respective slots formed in the body.

9. The assembly of claim 1 wherein the carrier includes translation means for moving the drills together along the axes of the drills for simultaneously drilling holes in a workpiece.

10. The assembly of claim 9 wherein the translation means comprises a movable strip of the carrier which is movable in a direction perpendicular to the longitudinal direction of the carrier, wherein the drills move with the strip.

1 1. The assembly of claim 1 wherein the mounting means is a clamp for mounting to a vehicle.

12. The assembly of claim 1 1 wherein the clamp includes removable mounting means to allow for the multiple drill assembly to be mounted to a different vehicle as required.

13. The assembly of claim 1 wherein the connection means allows for the distance and orientation between the mounting means and the carrier to be adjustable.

14. The assembly of claim 13 wherein the connection means comprises a series of connected arms for positioning and orienting the carrier as required relative to the mounting means.

15. The assembly of claim 14 wherein the connection means includes a first arm extending from the mounting means and is rotatable relative thereto, and a second arm extending from the first arm and is pivotable relative thereto, wherein the carrier is attached to the second arm.

16. The assembly of claim 15 wherein the relative connections between the first and second arms and the carrier are lockable in position or biased to remain in their arranged position until moved by the user.

17. The assembly of claim 16 wherein the pivotable connections include pneumatic or hydraulic cylinders or electric actuators to support the weight of the arms and to allow repositioning of the arms and carrier.

18. The assembly of claim 1 further comprising a movable platform assembly, wherein the mounting means is mounted to the movable platform assembly.

19. The assembly of 18 wherein the movable platform assembly comprises a base plate with parallel elongated rails mounted thereto, and a platform movable along the rails.

20. The assembly of claim 19 wherein the mounting means is pivotably attached to the platform.

21. The assembly of claim 1 wherein the carrier comprises a control bar for manual user control of the carrier.

22. The assembly of claim 1 wherein the angular orientation of the drills relative to the carrier is adjustable to allow for the drill bits to be angled upwardly or downwardly as needed.

23. The assembly of claim 22 wherein the drills are mounted to pivoting discs on the carrier which are lockable in the desired angle orientation.

24. The assembly of claim 23 wherein the discs of all the drills are mechanically connected via a threaded rod such that they are angularly movable together for adjusting the angle of the drills together.

25. The assembly of claim 1 further comprising an alignment means for ensuring the carrier is parallel to a post to be drilled.

26. The assembly of claim 25 wherein the alignment means comprises a bar which is mounted to be parallel to the carrier, and is movable relative to the carrier to remain parallel to the carrier.

27. The assembly of claim 1 further comprising a second carrier with spaced gang saw units.

28. The assembly of claim 27 wherein the second carrier comprises respective actuated chisel bits for each gang saw.

29. The assembly of claim 1 further comprising a third carrier with linked electric motors working together to turn an auger.

Description:
MULTIPLE DRILL ASSEMBLY

Field of the Invention

[1] The present invention relates to a multiple drill assembly. The invention is designed for use for fence posts but is not limited to this use.

Background of the Invention

[2] The present invention seeks to overcome or substantially ameliorate at least some of the deficiencies of the prior art, or to at least provide an alternative.

[3] It is to be understood that, if any prior art information is referred to herein, such reference does not constitute an admission that the information forms part of the common general knowledge in the art, in Australia or any other country.

Summary of the Invention

[4] According to a first aspect, the present invention provides a multiple drill assembly comprising:

a mounting means for mounting the assembly to a vehicle or structure,

a carrier which carries multiple drills thereon in a spaced manner, and

a connection means between the mounting means and the carrier.

[5] In one embodiment, the carrier comprises an elongated body which carries the multiple drills therealong.

[6] In another embodiment, the drills are arranged to be parallel to each other along the length of the body for drilling multiple parallel holes simultaneously.

[7] In another embodiment, the drills are arranged along a line.

[8] In another embodiment, the carrier includes an automatic self-levelling system with sensor.

[9] In another embodiment, the distances between adjacent drills along the carrier are adjustable.

[10] In another embodiment, the relative positions between the drills along the carrier are adjustable.

[1 1] In another embodiment, the drills are mounted in respective slots formed in the body.

[12] In another embodiment, the carrier includes translation means for moving the drills together along the axes of the drills for simultaneously drilling holes in a workpiece. [13] In another embodiment, the translation means comprises a movable strip of the carrier which is movable in a direction perpendicular to the longitudinal direction of the carrier, wherein the drills move with the strip.

[14] In another embodiment, the mounting means is a clamp for mounting to a vehicle.

[15] In another embodiment, the clamp includes removable mounting means to allow for the multiple drill assembly to be mounted to a different vehicle as required.

[16] In another embodiment, the connection means allows for the distance and orientation between the mounting means and the carrier to be adjustable.

[17] In another embodiment, the connection means comprises a series of connected arms for positioning and orienting the carrier as required relative to the mounting means.

[18] In another embodiment, the connection means includes a first arm extending from the mounting means and is rotatable relative thereto, and a second arm extending from the first arm and is pivotable relative thereto, , wherein the carrier is attached to the second arm.

[19] In another embodiment, the relative connections between the first and second arms and the carrier are lockable in position or biased to remain in their arranged position until moved by the user.

[20] In another embodiment, the pivotable connections include pneumatic or hydraulic cylinders or electric actuators to support the weight of the arms and to allow repositioning of the arms and carrier.

[21] In another embodiment, the assembly further comprises a movable platform assembly, wherein the mounting means is mounted to the movable platform assembly.

[22] In another embodiment, the movable platform assembly comprises a base plate with parallel elongated rails mounted thereto, and a platform movable along the rails.

[23] In another embodiment, the mounting means is pivotably attached to the platform.

[24] In another embodiment, the carrier comprises a control bar for manual user control of the carrier.

[25] In another embodiment, the angular orientation of the drills relative to the carrier is adjustable to allow for the drill bits to be angled upwardly or downwardly as needed.

[26] In another embodiment, the drills are mounted to pivoting discs on the carrier which are lockable in the desired angle orientation. [27] In another embodiment, the discs of all the drills are mechanically connected via a threaded rod such that they are angularly movable together for adjusting the angle of the drills together.

[28] In another embodiment, the assembly further comprises an alignment means for ensuring the carrier is parallel to a post to be drilled.

[29] In another embodiment, the alignment means comprises a bar which is mounted to be parallel to the carrier, and is movable relative to the carrier to remain parallel to the carrier.

[30] In another embodiment, the assembly further comprises In another embodiment, the assembly further comprises a second carrier with spaced gang saw units.

[31 ] In another embodiment, the second carrier comprises respective actuated chisel bits for each gang saw.

[32] In another embodiment, the assembly further comprises a third carrier with linked electric motors working together to turn an auger.

[33] Other aspects of the invention are also disclosed.

Brief Description of the Drawings

[34] Notwithstanding any other forms which may fall within the scope of the present invention, preferred embodiments of the present invention will now be described, by way of examples only, with reference to the accompanying drawings in which:

[35] Figure 1 is a side view of a multiple drill assembly according to a preferred embodiment of the present invention mounted to a movable platform;

[36] Figure 2 shows the movable platform assembly for the multiple drill assembly, where (a) is a perspective view, and (b) is an end view;

[37] Figure 3 shows a front perspective view of the multiple drill assembly mounted to the movable platform which is mounted to a tray of a utility vehicle;

[38] Figure 4 shows another perspective view of the assembly of Figure 3 with the drills facing the opposite direction;

[39] Figure 5 is closeup view of the carrier with the drills;

[40] Figure 6 is a schematic illustration of the multiple drill assembly in use;

[41 ] Figure 7 shows the notches required for vertical posts to receive horizontal rails;

[42] Figure 8 shows a carrier for the assembly having spaced gangsaws and actuated chisels for forming the notches in the vertical posts; [43] Figure 9 shows a carrier for the assembly having three coupled motors for driving an auger bit. .

Description of Embodiments

[44] It should be noted in the following description that like or the same reference numerals in different embodiments denote the same or similar features.

[45] Figures 1 and 3 show a multiple drill assembly 10 according to a preferred embodiment of the present invention. The assembly 10 comprises a mounting means 12, a carrier 14 and a connection means 16 between the mounting means 12 and the carrier 14.

[46] The carrier 14 comprises an elongated body 20 which carries multiple drill machines 22 thereon in a spaced manner. The drills 22 are arranged to be parallel to each other along the length of the body 20 for drilling multiple parallel holes simultaneously into a fence post. The body 20 includes a bubble level to allow a user to confirm that the body 20 is at the desired vertical or horizontal orientation. The body typically extends vertically in use and the drills 22 are spaced in the vertical direction. The carrier 14 can also include a self-levelling mechanism which will orient the body 20 into the required levelled orientation. The self-levelling mechanism can include a level sensor connected to an electric motor or actuator which will move and level the body 20 as required.

[47] In the example, the distances between adjacent drills 22 along the body 20 are adjustable. The drills 22 for example can be mounted in respective slots formed in the body 20. The slots can have markers to indicate distances between adjacent drills 22, as well as a central marker to indicate the default drill 22 location.

[48] The carrier 14 includes translation means for moving the drills 22 together along the axes of the drills 22 for simultaneously drilling holes in a workpiece such as a fence post. The translation means for example can be a movable strip 21 of the carrier body 20 which is movable in a direction perpendicular to the longitudinal direction of the carrier body 20. In the example shown in Figure 1 , the strip 21 is movable in the horizontal direction with the carrier body 20 oriented in the vertical orientation.

[49] The body 20 can be made from metal or hard plastic material and is about 1 to 1.5 meters in length. The drills 22 can be spaced at 15 to 20 cm intervals along the body 20.

[50] The mounting means 12 in the example is a clamp or base 30 for mounting to a vehicle, specifically the tray of a utility (ute) vehicle in the example. The clamp or base 30 includes removable mounting means to allow for the multiple drill assembly 10 to be mounted to different vehicles as required, or moved to a different position along the vehicle as needed. Alternatively, the base 30 can be permanently mounted to the vehicle. The base 30 in the example is mounted to a movable platform 70 as described below.

[51 ] The connection means 16 comprises a series of connected arms for positioning and orienting the carrier 14 as required. The connection means 16 in the example includes a first arm 40 and a second arm 42. The first arm 40 in the example extends generally upright from the clamp or base 30, and is rotatable relative thereto. The second arm 42 extends from the distal end of the first arm 40 and is pivotable relative thereto via a hydraulic or pneumatic actuator 43 . A distal end of the second arm 42 has a downward extension 44. The carrier 14 is attached to the extension 44 and pivotable relative thereto. In the example, the top end of the carrier 14 is attached to the extension 44, but can alternatively be attached at other sections along the carrier 14 such as at the mid-portion thereof.

[52] The relative pivotable connections between the first and second arms 40 and 42 and the carrier 14 are lockable in position or biased to remain in their arranged position until moved by the user. The pivotable connections for example can include pneumatic or hydraulic cylinders to support the weight of the arms as well as to allow repositioning of the arms and carrier. Alternatively, the pivotable connections can include other locking means such as cam locks or threaded fasteners.

[53] It will be appreciated that the connection means 16 can include less or more arms or can be embodied in other forms.

[54] Figure 2 shows a movable platform assembly 70 for the multiple drill assembly 10. The movable platform assembly 70 is mounted on the vehicle tray, and the mounting means 30 of the multiple drill assembly 10 is mounted to the platform 78 thereof for providing a linear slide movement.

[55] The movable platform assembly 70 comprises a base plate 72 with two parallel elongated rails 74 mounted thereto via rail mounts 75 and spacer 76. A platform 78 is movable along the rails 74 via bearings 79 mounted at a lower surface of the platform 78. The platform 78 is movable via a linear actuator 80, or in another embodiment is movable manually and lockable in position along the rails 74.

[56] The mounting means 30 of the multiple drill assembly 10 is then mounted to the centre of that platform 78 via a suitable flange or similar. The movable platform 78 provides a linear slide system which in the example gives a 300mm distance tolerance for easy alignment of the carrier 14 with the multiple drill machines 22 to the post, without having to move the vehicle.

[57] The mounting of the mounting means 30 to the platform 78 is pivotable, to provide another axis of adjustment for the carrier 14. [58] Figures 3 to 5 show the movable platform assembly 70 mounted to the tray of a utility vehicle. The carrier 14 comprises a control bar 90 mounted to the rear edge of the body 20, with the control bar 90 having left and right side handles 92 and 94. The handles 92 and 94 include control buttons for the actuator 43 and for the drills 22.

[59] Figure 6 shows a schematic example of use of the multiple drill assembly. In the example, each drill 22 carries a drill bit 50 which is 25 mm in diameter and 300 mm in length. The carrier 14 is positioned to be parallel and facing a fence post 60. A guide means 46 can be used to extend between the carrier 14 and the fence post 60 to secure them to each other. Using the translation means 21 of the carrier 14, multiple holes 62 can then be drilled into the fence post 60 simultaneously, saving on time and effort and increasing safety for the user.

[60] Alternatively, the translation means can be omitted and the carrier 14 can be adapted to be movable horizontally as needed using the control bar 90 as manual user control. The connection means 16 can alternatively be electronically controlled such that it functions as the translation means, to move the carrier 14 towards the post to be drilled. The pneumatic or hydraulic cylinders between the arms for example can be electronically controlled.

[61 ] The angular orientation of the drills 22 relative to the carrier 14 can also be made to be adjustable to allow for the drill bits 50 to be angled upwardly or downwardly as needed. This can be used for example in situations where the ground is sloped and the holes to be drilled into a fence post are required to follow/be parallel to the slope of the ground. The drills 22 for example can be mounted to pivoting discs on the carrier 14 which are lockable in the desired angle orientation. The discs of all the drills 22 can be mechanically connected such as via a threaded rod such that they are angularly movable together for adjusting the angle of the drills 22 together.

[62] The present invention provides a multiple drill assembly which makes it easier for a user to drill multiple holes in a workpiece. The assembly is mobile, flexible, and has its own battery bank. User fatigue is minimized as the assembly provides 10 to 12 seconds for drilling the required holes for each post, compared to 1.50 min per post in the traditional one drill manner.

[63] The assembly provides the option to use large and small drill bits for the same post. For example, some fencers like a plain wire on top to avoid horses/ cattle cutting their neck and barbed wire for the lower wires. The user can thus use a smaller drill bit for the top drill motor and larger drill bits on the remaining 4 drill motors.

[64] The assembly will save money in labor costs and save hours of work for a fencer. Further, the assembly is less noisy compared to a petrol motor in use for a whole day in the conventional method. [65] Although a preferred embodiment of the present invention has been described, it will be apparent to skilled persons that modifications can be made to the embodiment shown.

[66] The carrier can also be shaped in a different manner for carrying the drills thereon in a different arrangement as desired. For example, the carrier can be round or oval shaped. In another embodiment, the shape of the carrier can be adjustable, such as by having movable sections for positioning the drills as needed.

[67] In another embodiment, the mounting means can be adapted to mount the assembly to a structure, such as a wall, ground, or fence post.

[68] In another embodiment, the body 20 can include an alignment means for ensuring it is parallel to a post to be drilled. A post to be drilled for example may be at an angle to the ground. The alignment means can comprise a bar which is mounted to be parallel to the carrier, and is movable relative to the carrier for example via telescoping posts to remain parallel to the carrier. The bar can then be moved in use to be adjacent the post to be drilled, or even attached to the post, and used as the alignment means to ensure the carrier is parallel to the post if required.

[69] Figure 7 shows a wooden vertical post 102 having notches 106 to receive a horizontal rail 104.

[70] Figure 8 shows an assembly 1 10 which is similar to the assembly 100 above. The assembly 1 10 however has a carrier 13 with three gang saw units 122 attached to the body 20 similar to the drills 22, with the gang saw units 122 being adjustable in spacing relative to each other. The gang saw units 122 are each closely spaced circular saw blades and are used in use to form the initial closely spaced cuts in the post 102.

[71 ] Once the cuts are made by the gang saw units 122, the notches 106 are chipped via respective actuated chisel type bits 124 to remove the remaining wood that the gang saw units 122 left behind . Once chipped, the notches 106 are formed for placement of the wooden rail 104 therein. This saving considerable time over use of a chainsaw.

[72] Figure 9 shows an assembly 130 with a carrier 14 having three electric motors 222 working together linked by sprockets, chain, or rubber V belt to a central shaft to turn an auger 224 that could vary from 150mm diameter to 300mm diameter. This assembly is used for drilling holes in the ground to place road signs or guard rails, and other digging related tasks.

[73] The assembly 10 thus comprises the removable carrier which allows interchangeability with the gang saw carrier of Figure 8 or the auger carrier of Figure 9.

[74] The drill assembly 10 can also be mounted to a tractor using a quick hitch system or forklift type pick up points. The drill assembly 10 can be picked up by a fork lift assembly on a tractor, or utilised to operate the drill by attachment of forklift forks, or bolted frame of drill to forks.