GB2052239A

GB2052239A - Mounting device for tractors and the like

Info

Publication number: GB2052239A
Application number: GB7922393A
Authority: GB
Original assignee: HASSY HORTICULTURAL DEV
Current assignee: HASSY HORTICULTURAL DEV
Priority date: 1979-06-27
Filing date: 1979-06-27
Publication date: 1981-01-28
Also published as: GB2052239B

Abstract

A mounting device for the front or rear of a tractor comprising a first assembly of two parallel plates (12,14) attached to the tractor and a second assembly made up of a second pair of plates (56,58) between which extends a strut (26) adapted to be received in two open ended slots (18,20) in the first pair of plates (12,14) and a second removable elongate strut adapted to be threaded through four holes in the plates which can be brought into alignment by pivoting the one assembly relative to the other. Locking means (68,70) are provided to retain the second strut in place. A weight carrier or three point linkage frame or implement or grill guard or tool is attached to the second assembly. <IMAGE>

Description

SPECIFICATION Mounting device for tractors and the like Field ofinvention This invention concerns a front or rear mounting device for tractors and like vehicles.

Background to the invention Mounting devices for the front and rear of a tractor are known.

One form is described in our co-pending patent application No. 78-28673 which allows a set of tractor weights to be carried safely on the front end of a tractor. The weights can be quickly and easily mounted and demounted but the mounting device on which the weights are carried is itself not readily detachable from the tractor to allow other implements to be mounted in its place (such as a hoe or band sprayer or topper) or to allow a three point linkage to be mounted thereon.

It is one object of the invention to provide a mounting by which a weight and tool carrier can be readily mounted and demounted and which will permit an implement or a three point linkage to be readily mounted in its place.

It is a second object to provide a mounting which can be fitted to the rear of a tractor on which a weight carrier of the type described in our copending application can be mounted after being removed from the front end, and on which, in place of the weight carrier, an implement or a three point linkage can if desired be mounted.

The invention According to one aspect of the present invention there is provided a mounting device comprising: (1 ) a first assembly attached to and extending from the front or rear of a tractor, which includes a pair of laterally spaced apart walls each having an upwardly open slot and a hole below and spaced from the slot, the slots and the holes in the opposite walls being aligned, (2) a second assembly attached to or extending from and forming an integral part of a weight carrier or three point linkage frame or an implement which also includes a pair of laterally spaced apart walls between which extends an elongate strut adapted to fit into the slots, the interengagement of the strut and the slots permitting pivoting of the second assembly relative to the first, and the walls of the second assembly being formed with a pair of holes which correspond to the holes in the walls of the first assembly and which can be aligned therewith by pivoting the second assembly relative to the first assembly, and (3) a third assembly comprises of a removable strut which is fitted through the two pairs of aligned holes, the interengagement of the removable strut and the aligned holes preventing the second assembly from pivotting relative to the first assembly.

Preferably the first strut includes stop means therealong which co-operate with the walls of the first member to prevent undue lateral movement of the second assembly relative to the first assembly.

Preferably the third assembly includes means for retaining the removable strut in the aligned holes to prevent the strut from being pulled or pushed axially therefrom.

Conveniently this retaining means is adjustable to accommodate different lateral spacings between the walls of the first assembly.

Conveniently the walls of the first assembly are bolted or otherwise conveniently secured to opposite sides of the front or rear of a tractor.

According to another aspect of the invention the positions of the slots and holes in the walls of the first assembly may be reversed so that the slots open downwardly.

According to a third aspect of the invention the first assembly may be secured to and extend from the weight carrier or implement or three point linkage (to be mounted on the tractor) and the second assembly may be mounted on the tractor.

The positions of the slots and holes in the first assembly may as before described be reversed.

To improve the anchoring of the transverse strut of the second assembly in the slots of the first assembly, the latter may be of the keyhole type.

According to a preferred feature of the invention a mounting as described may be fitted to a tractor having a front loader mounted thereon and in an advantageous arrangement in which the mounting is on the front, the conventional grill guard (fitted to a tractor employing a front loader) is removed and is replaced by a grill guard adapted to be fitted to the front mounting device of the invention in that it has fitted thereto a first (or second) assembly as before described (depending on which assembly is mounted on the tractor) for fitting to the second (or first) assembly extending from the front end of the tractor. This allows the loader to be elevated and remain on the tractor for non-loading use and in those circumstances the grill guard can be readily removed to allow an implement or weight carrier to be hitched in place.

Where the non-loading use is more than incidental, the loader arms are preferably removed from the lower supporting frame of the loader to lower the centre of gravity of the tractor and reduce risk of damage and of course wear and tear to the loader arms etc. When the loader arms are so removed it may be necessary to mount a loaded weight carrier on the front end to correct the fore to aft balance.

One advantage of having a rear as well as a front mounting is that the loaded carrier can be carried on the rear of the tractor when the loader is in use to counter balance the tractor yet it is immediately available for transfer to the front if and when the loader arms are to be removed and for example an implement or trailer is to be hitched to the rear of the tractor.

The invention will now be described with reference to the accompanying drawings: In the drawings Figure 1 is a top view of the front end of a tractor having weight and tool carrier carried by a front mounting assembly embodying the invention, Figure 2 is a similar view in which the weight and tool carrier is replaced by a parallel linkage by which an implement is mounted on the front end, Figure 3 is a perspective view of the assembly shown in Figure 2 and Figure 4 is a perspective view of a tractor having a front loader mounted thereon with an implement carried on the front mounting of the invention.

Detailed description of the drawings In Figure 1 a tractor 10 includes two forwardly directed plates 12, which are bolted to opposite sides of the bonnet above the front axle 16. Each plate includes an upwardly open slot 18,20 respectively and a hole 22, 24 respectively. The two slots and the two holes are aligned so that a bar or strut 26 can be dropped into the slots 18,20 and a second bar or strut 28 can be pushed through the two holes 22, 24.

The strut or bar 20 is secured between two plates 30, 32 of a weight and tool carrier 34. The sides of the latter include a pair of holes 36, 38 respectively which, by tilting the carrier 34 about the axis defined by the retention of the bar 26 in the slots 18/20, so the holes 36,38 can be aligned with the holes 22, 24 and the bar 28 can be pushed through all four holes, to prevent further pivoting of the carrier 34.

It will be seen that the bar 28 also prevents the carrier 34 from being lifted relative to the mounting assembly 12, and so keeps the bar 26 firmly within the slots 18, 20.

The carrier 34 is conveniently of the type described in our co-pending application before referred to.

Two bosses 40,42 are secured on the bar 26 (which is of circular cross section) and are adjusted along the length of the br 26 so as to engage against the plates 12, 14 and laterally locate the bar 26 (and therefore the carrier 34) relative thereto.

With different tractor sizes so the spacing between the plates 12, 14 will differ and the spacing between the carier sides 30,32 and the length of the bar 26 are therefore selected so as to be greater than the widest spacing likely to be obtained between the plates 12, 14 and on less wide tractors the overhang of the bar 26 on opposite sides of the plate assembly 12, 14 is made equal and subsequent movement prevented by tightening the bosses 40,42.

Figures 2 and 3 show a similar arrangement in which the carrier 34 is replaced by a parallel linkage 44, 46, 48 and 50. A rigid frme 52 provides a cross member 54 and two sides 56, 58 to which the linkage arms 44-50 are pivotably attached. The sides 56, 58 extend rearwardly and include two pairs of holes 60, 62 and 64,66 through which the two bars 26 and 28 extend. Additional adjustable bosses 68, 70 on bar 28 and 72,74 on the ends of bar 26 serve to keep the linkage frame 52 laterally located relative to the tractor.

Further bosses are provided at opposite ends of the lower bar 28 and one is shown at 76 in Figure 3.

Also in Figure 3 can be seen a ram 78 for extending/raising the linkage 44-50 relative to the transverse strut 54 of the frame 52.

After removing the bar 28 and the linkage frame 52 from the mounting plates 12, 14 a grill guard 80, having a pair of plates (one only of which can be seen in Figure 4 at 82) similar to the plates which extend to the rear of the sides 56, 58 of the frame 52 in Figures 2 and 3, can be mounted thereon together with a three point linkage frame generally designated 84 in Figure 4. An implement can be mounted in manner known per se on the frame 84.

It will be seen that this arrangement will allow a tractor having a front loader 86 mounted thereon, to be fitted with an implement such as that shown at 88 in Figure 4, with the loader in the elevated position shown.

The loader arms may of course be detached from the tractor and to improve fore to aft stability a ;, weight carrier such as 34, removed from the front mounting plates 12, 14to allow the three point linkage 80 etc. to be mounted thereon, can be mounted at the rear of the tractor on a second pair of plates (not shown) similarto plates 12,14.

CLAIMS 1. A mounting device for a tractor comprising: (1) A first assembly attached to and extending from the front or rear of a tractor which includes a pair of laterally spaced apart walls each having an upwardly open slot and a hole below and spaced from the slot, the slots and the holes in the opposite wall being aligned.

(2) A second assembly attached to or extending from and forming an integral part of a device to be carried by the tractor which includes a pair of laterally spaced apart walls between which extends an elongate strut adapted to fit into the slots, the interengagement of the strut and the slots permitting pivoting of the second assembly relative to the first and the walls of the second assembly being formed with a pair of holes which correspond to the holes in the walls of the first assembly and which can be aligned therewith by pivoting the second assembly relative to the first assembly and (3) A third assembly comrpised of a removable strut which is fitted through the two pairs of aligned holes, the interengagement of the removable strut and the aligned holes preventing the second assembly from pivoting relative to the first assembly.

2. A mounting device as claimed in claim 1 wherein the said second assembly is attached to or extends from and forms an integral part of a weight carrier.

3. A mounting device as claimed in claim 1 in which the said second assembly attached to or extends from and forms an integral part of a three point linkage frame.

4. A mounting device as claimed in claim 1 in which the said second assembly is attached to or extends from and forms an integral part of a tool or implement.

5. A mounting device as claimed in any of the preceeding claims wherein the first strut includes stop means therealong which co-operate with the walls first member to prevent undue lateral move- ment of the second assembly relative to the first assembly.

6. A mounting device as claimed in any of the preceeding claims in which the third assembly includes means for retaining the removable strut in the aligned holes to prevent the strut from being pulled or pushed axially therefrom.

7. A mounting device as claimed in claim 6 in which the retaining means is adjustable to accommodate different lateral spacings between the walls of the first assembly.

8. A mounting device as claimed in any of the preceeding claims wherein the walls of the first assembly are removable secured to opposite sides of the front or rear of the tractor 9. A mounting device for a tractor comrpising : (1) A first assembly attached to and extending from the front or rear of a tractor which includes a pair of laterally spaced apart walls each having a downwardly open slot and a hole above and spaced from the slot, the slots and the holes in the opposite walls being aligned, (2) A second assembly attached to or extending from and forming an integral part of a device to be carried on the mounting device, the said second assembly including a pair of laterally spaced apart walls between which extends an elongate strut adapted to fit into the slots, the interengagement of the strut and the slots permitting pivoting of the second assembly relative to the first, and the walls of the second assembly being formed with a pair of holes which correspond to the holes in the walls of the first assembly above the slots, and which can be aligned therewith by pivoting the second assembly relative to the first assembly, (3) Athird assembly comprised of a removable strut which is fitted through the two pairs of aligned holes, the interengagement of the removable strut and the aligned holes preventing the second assembly from pivoting relative to the first assembly and from dropping out of the said downwardly open slots.

10. A mounting device as claimed in claim 9 wherein the said device comprises a weight carrier or three point linkage frame or tool or implement.

11. A mounting device for mounting a member on atractorand comprising: (1) A first assembly attached to and extending from the front or rear of the tractor, which said assembly includes a pair of laterally spaced apart walls between which extends an elongate strut, each of the walls being formed with a hole spaced from the point in the wall surface from which the said elongage strut extends, (2) A second assembly attached to or extending from and forming an integral part of the member which is to be attached to the tractor, the said second assembly including a second pair of laterally spaced apart walls each having an open ended slot and a hole spaced from the closed end of the slot by the same spacing as exists between the hole and the point at which the elongate strut extends from the corresponding lateral wall of the first assembly, the slots and the holes in the opposite walls of each said first and second assemblies being aligned and the elongate strut being adapted to fit into the open ended slots in the first assembly, the interengagement of the strut and the slots permitting relative pivoting of the two assemblies to allow alignment of the two pairs of holes in the four walls, and (3) A third assembly comprised of a removable strut which is fitted through the two pairs of aligned holes, the interengagement of the removable strut and the aligned holes preventing relative pivoting of the two assemblies and preventing the one assembly from being removed from the other.

12. A mounting device as claimed in claim 11 wherein the said member comprises a tractor weight carrier or a three point linkage frame or a tool or implement.

13. A tractor mounting device claimed in any of the preceeding claims in which the slots are keyhole slots and include a mouth section through which the strut can be movee freely and a capture section which can only be entered or left by the strut by movement of the strut in at least one direction which is not parallel to theedirection of movement required of the strut during an entry or leaving motion in the mouth section of the slot.

14. A mounting device as claimed in any of claims 1 to 10 wherein the said second assembly is attached to or extends from and forms an integral part of a grill guard.

15. A mounting device as claimed in 11 or 12 wherein the said second assembly is attached to or extends from and forms an integral part of a grill guard.

16. A mounting device as claimed in claim 14 or 15 when fitted to a tractor having a front loader mounted thereon in which the front motor can be elevated clear of the grill guard to allow the latter to be removed and an alternative device or member attached to the said first assembly of the mounting device.

17. A tractor when fitted with a mounting device as claimed in any of the preceeding claims.

18. A tractor as claimed in claims 16 and 17 wherein the front loader includes a lower supporting frame and detachable loader arms.

19. A tractor as having a mounting device as claimed in any of claims 1 to 16 mounted at the front and at the rear of the tractor.

20. A mounting device for a tractor constructed arranged and adapted to operate substantially as herein described with reference to and as illustrated in the accompanying drawings.

New claims or amendments to claims filed on 11th April 1980.

Superseded claims 1-20.

New or amended claims:

Claims

1. A mounting device for a tractor comprising:- (1) A first assembly attached to and extending from the front or rear of a tractor which includes a pair of laterally spaced apart walls each having an upwardly open slot and a hole below and spaced from the slot, the slots and the holes in the opposite wall being aligned.

(2) A second assembly attached to or extending from and forming an integral part of a device to be carried by the tractor which includes a pair of laterally spaced apart walls between which extends an elongate strut adapted to fit into the slots, the interengagement of the strut and the slots permitting pivoting of the second assembly relative to the first and the walls of the second assembly being formed with a pair of holes which correspond to the holes in the walls of the first assembly and which can be aligned therewith by pivoting the second assembly relative to the first assembly.

(3) A third assembly comprised of a removable strut which is fitted through the two pairs of aligned holes, the interengagement of the removable strut and the aligned holes preventing the second assembly from pivoting relative to the first assembly, and (4) An adjustable stop means associated with at least one of the struts and moveable therealong to an adjusted position which restricts relative lateral movement in the three assemblies.

4. A mounting device as claimed in claim 1 in which the said second assembly is attached to or extends from and forms an integral part of a tool or implement

5. A mounting device as claimed in any of the preceeding claims in which the third assembly includes means for retaining the removable strut in the aligned holes to prevent the strut from being pulled or pushed axially therefrom.

6. A mounting device as claimed in claim 5 in which the retaining means is adjustable to accommodate different laterial spacings between the walls of the first assembly.

7. A mounting device as claimed in any of the preceeding claims wherein the walls of the first assembly are removable secured to opposite sides of the front or rear of the tractor.

8. Amounting devicefora tractorcomprising: (1) A first assembly attached to and extending from the front or rear of a tractor which includes a pair of laterally spaced apart walls each having a downwardly open slot and a hole above and spaced from the slot, the slots and the holes in the opposite walls being aligned, (2) A second assembly attached to or extending from and forming an integral part of a device to be carried on the mounting device, the said second assembly including a pair of lateraly spaced apart walls between which extends an elongate strut adapted to fit into the slots, the interengagement of the strut and the slots permitting pivoting of the second assembly relative to the first, and the walls of the second assembly being formed with a pair of holes which correspond to the holes in the walls of the first assembly above the slots, and which can be aligned therewith by pivoting the second assembly relative to the first assembly, (3) Athird assembly comprised of a removable strut which is fitted through the two pairs of aligned holes, the interengagement of the removable strut and the aligned holes preventing the second assembly from pivoting relative to the first assembly and from dropping out of the said downwardly open slots, and (4) An adjustable stop means associated with at least one of the struts and moveable therealong to an adjusted position which restricts relative lateral movement in the three assemblies.

9. A mounting device as claimed in claim 8 wherein the said device comprises a weight carried or three point linkage frame or tool or implement.

10. Amounting device for mounting a member on a tractor and comprising: (1) A first assembly attached to and extending from the front or rear of the tractor, which said assembly includes a pair of laterally spaced apart walls between which extends an elongate strut, each of the walls being formed with a hole spaced from the point in the wall surface from which the said elongate strut extends, (2) A second assembly attached to or extending from and forming an integral part of the member which is to be attached to the tractor, the said second assembly including a second pair of laterally spaced apart walls each having an open ended slot and a hole spaced from the closed end of the slot by the s -::me spacing as exists between the hole and the point at which the elongate strut extends from the c rrresponding lateral wall of the first assembly, the slots and the holes in the opposite walls of each said fi.-st and second assemblies being aligned and the elongate strut being adapted to fit into the open ended slots in the first assembly, the interengage ment of the strut and the slots permitting relative pivoting of the two assemblies to allow alignment of the two pairs of holes in the four walls, (3) A third assembly comprised of a removable s rut which is fitted through the two pairs of aligned holes, the interengagement of the removable strut a 7d the aligned holes preventing relative pivoting of the two assemblies and preventing the one assem b y from being removed from the other, and (4) An adjustable stop means associated with ar least one of the struts and moveable therealong to an adjusted position which restricts relative lateral movement in the three assemblies.

11. A mounting device as claimed in claim 10 wherein the said member comprises a tractor weight carried or a three point linkage frame or a tool or implement.

12. A tractor mounting device claimed in any of the preceeding claims in which the slots are keyhole slots and include a mouth section through which the strut can be moved freely and a capture section which can only be entered or left by the strut by moving of the strut in at least one direction which is not parallel to the direction of movement required of the strut during an entry or leaving motion in the mouth section of the slot.

13. A mounting device as claimed in any of claims 1 to 9 wherein the said second assembly is attached to or extends from and forms an integral part of a grill guard.

14. A mounting device as claimed in 10 and 11 wherein the said second assembly is attached to or extends from and forms an integral part of a grill guard.

15. A mounting device as claimed in claim 13 or 14 when fitted to a tractor having a front loader mounted thereon in which the front loader can be elevated clear of the grill guard to allow the latter to be removed and an alternative device or member attached to the said first assembly of the mounting device.

16. A tractor when fitted with a mounting device as claimed in any of the preceeding claims.

17. A tractor as claimed in claims 15 and 16 wherein the front loader includes a lower supporting frame and detachable loader arms.

18. A tractor as having a mounting device as claimed in any of claims 1 to 15 mounted at the front and at the rear of the tractor.

19. A mounting device for a tractor constructed arranged and adapted to operate substantially as herein described with reference to and as illustrated in the accompanying drawings.