Wire Pulling Wincher

Abstract

A wire pulling wincher apparatus attachable to a tractor, loader or other mobile transport device capable of receiving attachments has a pass through frame attachable to the mobile device, a vertical support member on the frame for supporting a first winch with cable for attaching and pulling a fence wire to be tensioned, a second winch for raising and lowering a slide block assembly through which the first winch cable is guided to allow pulling the first winch cable at different vertical heights, and has winch tension limiting apparatus.

Claims

1. A frame attachable to a three-point hitch comprised of: a. a rigid outer frame having a top and a bottom portion and an interior; b. a plurality of pairs of subframes attached to the outer frame within its interior; c. connection receiving holes within at least a pair of subframes for receiving standard three point hitch attachment means; d. a rigid extension extending from the outer frame, having a receiving hole therein for receiving attachments.

2. A frame attachable to a three point hitch comprised of: a. a rigid outer frame having a top and a bottom portion; b. two rigid first subframes within said outer frame; c. two rigid second subframes within each of the two rigid first subframes; d. two rigid third subframes within each of the two rigid second subframes; e. connection receiving holes within both the second and third rigid subframes for connecting to a three point hitch; f. a rigid extension extending from the rigid frame, having a receiving hole therein for receiving attachments.

Description

DESCRIPTION OF THE DRAWINGS

[0024] FIG. 1 is an overall perspective of the invention.

[0025] FIG. 2 is a view upper assembly

[0026] FIG. 3 is a view of the lower assembly

[0027] FIG. 4a is a view of the slide block assembly

[0028] FIG. 4b is a view of the slide block assembly with cables

[0029] FIG. 5 shows the device used with respect to the posts.

[0030] FIG. 6a is a view of a fence tie off with a typical manual puller attached to the end post

[0031] FIG. 6b is a view of the fence tie of using the invention

SUMMARY OF THE INVENTION

[0032] The invention is a wire pulling wincher apparatus attachable to a tractor or other mobile transport device capable of receiving attachments, having a pass through frame attachable to the mobile device, a vertical support member on the frame for supporting a first winch with cable for attaching to a fence wire to be pulled, a second winch for raising and lowering a slide block assembly through which the cable is guided to allow pulling the cable at different vertical heights, a winch limit switch for sensing a tension limit in the cable and able to stop the winch at the desired tension, and remote control means for operating the first winch.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0033] The invention is shown in FIG. 1 in the preferred mode having a frame 1 that, in the preferred mode, allows for the individual operator to walk through or pass through with ease when in use with the loader or other mobile device to which it is attached on one side while the other is attached to and tensioning the fence wire. Base frame 11 and top frame member 3 are spaced apart sufficiently to allow such a pass through although other embodiments are envisioned to accomplish this space between the fence connection and the loader. Frame 1 has back frame member 5 therebetween, which in the preferred mode also has a lower structure, back frame base assembly 7, that allows for attachment means 9a, 9b and 9c for attaching to a tractor, steer loader, or other mobile transport means. As shown, the lower structure also allows for storing battery means 6 for powering the winches. The base frame 11 is in this mode comprised of a first base frame member 11a and a second base frame member 11b that are connected at a base frame juncture 15. The two base frame members are attached to the back frame assembly 7. Any structure for a base that allows for a pivot point at lower pivot pin 8 to support the vertical support bar 20 is envisioned.

[0034] These parts described create a rigid frame 1 capable of supporting the vertical support bar 20 and its structure and other elements including winch or other pulling means, that in the preferred mode is pivotally situated between the top frame member 3 base frame member 11 at lower pivot pin 8 and upper pivot point 10. The vertical support bar 20 has key elements attached to it, including at least a manual or electric wire pulling means that allows for various vertical levels for pulling the wire. In the preferred mode, this is accomplished via a wire pulling winch 30 working in combination with a vertical adjustment winch 40 and with means for limiting the pulling when a desired tension is achieved. These tension limiting means are shown as 12 in FIG. 1 but are shown in more detail in FIG. 2.

[0035] Pivot means is achieved at the bottom as shown having lower rigid bracket 26 that is attached to the vertical support bar, pivoting on lower pivot pin 8 that is attached to the base frame 11, which is this mode has pin 8 extending through a hole in the lower bracket. Pivot means at the top is achieved with a rotation sprocket and plate assembly pivot about pivot point 10, shown in more detail in FIG. 2.

[0036] Vertical support bar 20 has attached to it on one side slide sleeve means for allowing vertical positioning of the pulling cable loop 2. In the preferred mode it is comprised of the slide sleeve assembly 12 that functions to provide the vertical position of the wire loop 2 via a separate positioning cable 70 that is connected at one end to the slide sleeve assembly, and the opposite end to the winch 40 that raises and lowers the slide sleeve assembly 12 as desired. The tensioning cable 25 is threaded over pulley means in the slide sleeve assembly and directed downward to the lower sheave (pulley) means 27 in the lower bracket (shown in more detail in FIG. 3) and redirected back up to the winch 30 protected by cable guard 21. Thus the wire tensioning winch 30 works in conjunction with vertical positioning winch 40 via the slide sleeve assembly to allow both the pulling of the wire in an essentially horizontal direction at various desired vertical heights. This slide sleeve assembly is shown in more detail in FIG. 2.

[0037] Tension limiting means 12 provides for limiting the tension of the wire inasmuch as winches can pull at tensions much greater than that needed. This also provides a means for uniform tension to the various fence wires, as well as a safety feature. In this mode, such means are provided in the following manner. Tensioning winch 30 is attached, either removably or permanently, to plate 23, which plate is slidably connected to slide plate 23. Plate 23 works in conjunction with spring means and electrical switch means so as to turn off the power to the winch when the winch is pulled down during tensioning. This is shown in more detail in FIG. 2.

[0038] Wires 16a from the battery 6 are fed to the control box 18. Power from the control box also feeds the winches 30 and 40, and their respective switches, i.e. the control switch 38 for the height winch 40 and the remote control relay switch 39 for the tension winch 40.

[0039] FIG. 2 shows some of the above features in more detail. Rotation plate 50 is rotatably attached to sprocket 51 that is attached to the upper frame arm 13 via pin 54 that is centered and attached to the sprocket 51. Sprocket 51 has in the preferred mode 24 teeth with spaces in between to match at least one pin hole in the plate 50 such that pin 52a, which is spring loaded, to normally force the spring into the hole in the plate 50 up in between two teeth in the sprocket 51. The pin is pulled downward against the spring 53a via cable 4b attached to lever 4a to release the pins from the sprocket teeth. In another mode there is at least two or more such pins and holes, offset so that only one hole at a time is aligned with the sprocket teeth so as to allow a finer selection of positions, i.e. more positions become available in smaller increments.

[0040] The tensioning limiting means has limit switch 33 affixed to bracket 35 such that switch arm 33b is springloaded and normally up, and when normally up, it is electrically closed to allow power to the winch 30 via a power relay. When pulled down sufficiently, the arm 33b then disconnects the power. This will occur when the winch, attached to winch mounting plate 32 slides down winch slide plate 33 as the tension on the winch increases during pulling. The counter tension is provided via the limit tension spring 34a held in place by elongated bolt 34b that extends through the spring, though the bracket 35 and attached to the plate 22. This is shown as connected to the plate via nut means welded to the plate, with the bolt screwed into the nut. Other modes are envisioned to limit the tension to a maximum and adjustable setting as desired, including hinged means instead of slidable means.

[0041] The lower assembly is shown in FIG. 3. Wire tension cable sheave, or lower sheave 27, is a pulley means to redirect the direction of the cable upwards held in place via sheave pin 28. Lower slide stop 29 provides a stop for the slide assembly 70, and also serves as a support and spacer for the two sides of the cable channel 14.

[0042] The slide plate assembly 12 is shown in FIGS. 4a and 4b with pulley or sheave means 71 rotationally connected, via pin 76, between two plates 77a and 77b, which plates are connected to each other via separate rigid spacers attaching the two sides, which are typically welded. Cable 70 connects to the hole 73 so as to allow for raising and lowering of the slide assembly 12 to the desired height for the wire loop 2. Loop 2 is attached to a cable clamp 2a that can removably attach to the desired fence wire to be tensioned. Cable 25 extends as shown around lower sheave 27.

[0043] In use, shown in FIG. 5, the invention 88 is attached to loader 87. Fence posts are shown with the last prior braced post 85 having fence tensioned and pulled to that point. There now are one or more strands 90a, 90b, 90c of fence laid out to be tensioned and secured. The top fence wire 90a will be pulled first. The operator pulls up to the brace pipe or other rigid support member attached to brace post 83b so that the pulling point of the invention (approximately the pivot point 8) is at 81. It is best that point 81 be several feet inside of the end post 83a. Here it can be seen that the typical fence tensioner is attached to the end post itself instead. The unit is then lowered to the ground by the loader so that the base 11 is on the ground. Then align the device with the wire to be pulled. Here, regardless of what angle the loader and attachment are pulled in at, the invention is rotated about the pivot point via the rotational sprocket means to line up as desired. The winch clutch 30a for winch 30 is then released so that the cable 25 can be pulled out a desire distance and connected to the clamp 2a so that the cable 25 is now attached to the fence wire. If not at the desired height, the height winch should be activated to set the cable loop 2 to the desired height with manual control switch. The winch clutch 30a is then reset, and the cable 25 is then ready to pull by activating the remote control when ready, to turn the tension winch 30 on. When the winch 30 is pulled down (via slide plate 23 with mounting plate 22) the sufficient distance due to the desired tension, it will turn off via winch limit switch 33a, where switch arm 33b is brought downward at contact point 19 as limit tension nut 34c. (This winch tension limit is adjustable as needed between fence pulls by adjusting the spring tension by adjusting the tension bolt 34b, or in other ways, such as by having adjustable means at the contact point 19). When the winch 30 stops, tie the fence wire end to the end post. It is seen that this is accomplished without interference of a fence puller tied to the end post. It can also be seen in FIG. 5 that the device allows one to pass through at the double arrows 89 during the process.

[0044] To tension the next lower wire on the fence post, one first lowers the slide assembly by activating wire height winch 40 to lower the assembly 12. This automatically releases the tension on the cable 25 to allow disconnecting the clamp, so that the clamp can now be attached to the next lower wire 90b.

[0045] It can now be seen with use how the invention also reduces the tendency of imparting fence twisting tie offs as often occurs using typical fence pullers attached to the end post and tied off at 91a while the puller is attached (FIG. 6a) versus using the invention to pull at 81 then tying off at 91b (FIG. 6b). The slack in 91b that if provided by pulling at 81 allows circling around the post and centering. When the clamp is let loose and the fence pulls the connection tight at 91b, it pulls from the center, with no twisting motion. In the prior art, the fence wire is stapled tight, then tied off at 91a. This causes the wire to cause the fence post to twist as shown with the arrow in FIG. 6b because of the brace member used to secure the post, an undesirable result, because this constant twisting force over time causes the post to loosen and the fence wire thus to loosen. This does not occur when using the current invention.

[0046] Thus, what is shown is a wire pulling wincher apparatus for fence wire tensioning for use with loaders and the like that meets the objectives. Other objectives and features are apparent in this specification and to those skilled in the art.