RU78036U1 - Ledobur - Google Patents

Abstract

The utility model relates to the field of fishing equipment, namely, devices for drilling holes in the thickness of ice in winter fishing. An ice drill is proposed, which contains a screw, on one end of which a cutting head with knives is fixed, and on the other a crank handle, a clip bracket made in the form of a brace with a pin fixed in the center and holes for connecting to the handle and screw and two bolts with nuts moreover, grooves are made at the end ends of the screw and the handle, both end ends are mounted in a cage at a distance less than the diameter of the stud, and are fixed with a wing nut, the diameter of the base of which exceeds the distance between the end ends E screw and handle. The ice drill can be made with the possibility of working rotation clockwise and counterclockwise. The design of the ice drill provides reliable and convenient drilling of ice with a thickness of 1000 to 1900 mm and a hole diameter of 130 to 150 mm.

Description

The utility model relates to the field of fishing equipment, namely, devices for drilling holes in the thickness of ice in winter fishing.

Known auger ice drill (RU 2278512), which consists of a winch and connected with it a loop joint of a screw-knife part. The latter consists of a hollow metal shaft, to the surface of which one helical blade is welded from the side of one end, equipped with a side on the periphery of the working surface of the blade. A crossbar is welded to the end parts of the shaft and the blade, to which two mortise knives are removably attached. The bead is welded to the periphery of the working surface of the blade at individual points, in the intervals between which the board is equipped with through grooves.

The advantage of the design is the ability to quickly drain the water after removing the screw-knife part from the water. However, to clean the auger with sides from the mass of ice with water, it is necessary to lift the auger with the bar up, which leads to the inevitable wetting of the hands, in addition, the inclination angles of the cutting edges of the knives do not provide an optimal cut of the ice surface.

Known ice drill (RU 2034209), containing a screw, on one end of which is mounted a cutting head (holder), and on the other bracket with a hole offset from the axis of the screw, an elbow handle with a bracket connected to the bracket of the screw via an axis, and a locking element. The screw bracket is provided with a protrusion with a lateral conical surface and an inclined end, the inclination of which is directed toward the axis, while the crank of the crank handle is made with a central groove under the protrusion of the screw bracket, and the locking

the element is made in the form of a movable sleeve located on the crank handle. The disadvantage of this device is the non-optimal angle of inclination of the cutting edges of the knives, which does not provide an optimal cut of the ice surface, and a fixed cutting body, which eliminates the possibility of replacing the cutting elements.

Closest to the claimed solution is the ice drill (RU 68238), which contains a screw, on one end of which a two-blade or three-blade cutting head is fixed with removable knives, and on the other a cranked handle with two handles. The knives are made with the main and auxiliary cutting edges at angles of 30 °, the top of the blade is 75 °. The handle is connected to the screw by means of a clip-holder with a pin fixed in the center and holes for connecting to the handle and screw and two bolts with nuts or rivets, and a locking element in the form of a bar with a hole for the pin. The knives are made with the main and auxiliary cutting edges at angles of 30 °, the top of the blade is 75 °.

The disadvantage of the ice ax is the insufficiently reliable connection of the handle with the screw, which does not ensure the integrity of the axis along which the load is carried out.

The technical problem solved by the authors was to increase the reliability of the ice drill by creating a more rigid connection of the handle with the screw. The technical result was achieved in that in the ice drill having a screw, at one end of which a cutting head with knives is fixed, and on the other, a crank handle connected to the screw by a clip bracket and fixed with a locking element, are additionally made on the end parts of the screw and handle grooves by placing the above end ends in the clip bracket at a distance less than the diameter of the stud, and also using a wing nut, the diameter of the base of which exceeds the distance between the end face, as a locking element and screw and handle.

The cutting head is usually made of two - or three-blade; and auger and handle with telescopic holes for fixing.

In this case, the spiral of the screw and the location of the knives can be performed both for clockwise rotation and for counterclockwise rotation.

In the drawings:

Figure 1 - General view, where

1. auger with a spiral,

2. handle

3. cutting head with installed knives,

4. pens

5. clip holder

6. The fixing nut-wing.

Figure 2 - General view of the ice drill when folded

FIGS. 3 and 4 are a side and top view of a clip bracket, where

1. female bracket

2. mounting holes,

3.pin

4. the end end of the handle;

5. end end of the screw;

6. grooves,

7. bolts or rivets,

8. The fixing nut-wing.

The essence of the proposed technical solution is as follows. The ice drill (Fig. 1) contains a handle 2 with two handles 4. On the screw 1, with a welded left or right spiral with 3-5 turns, a cutting head 3 with removable knives is fixed. The screw 1 and the handle 2 are connected through a clip bracket 5 by means of 2 bolts and self-locking nuts or rivets (Figure 1).

The clip bracket (Fig. 3) is made in the form of a brace clip 1 with a pin 3 and holes 2 for connection with the handle and the screw, at the end ends of the handle 4 and the screw 5, grooves 6 are made so that they

covered stud 3, providing the design increased rigidity in the vertical. In working condition, the design is axisymmetrically rigidly fixed by means of the wing nut 8. When folding (Figure 2), the screw 1 and the handle 2 are rotated around the axes of the fasteners (bolt or rivet) 7 (figure 3) fixed in the clip bracket 5.

The design works as follows. The ice drill is brought into working position, rigidly fixing the connection of the handle and the screw with the help of a locking nut-wing. Set the knives of the cutting head on the ice surface and rotate the handle with the help of handles with two hands. Detachable knives installed at specific angles provide optimal conditions for cutting (cleaving) the ice surface. Because knives are removable, this makes it possible to use knives of various designs from third-party manufacturers.

With the telescopic design of the auger or handle, as it goes deeper, the inner rod extends, which is fixed by combining the holes made in the main pipe and the extendable rod with a special rod.

The design of the ice drill provides for the drilling of ice with a thickness of 1000 to 1900 mm and a hole diameter of 130 to 150 mm.

Claims (3)

1. An ice drill containing a screw, on one end of which a cutting head with knives is fixed, and on the other - a cranked handle, a clip bracket and a locking element, and at the end ends of the handle and auger there are holes for fixing the clip-clip connecting them, made in the shape of the covering brackets with a pin fixed in the center and holes for connecting to the handle and the screw and two bolts with nuts, characterized in that grooves are made at the end ends of the screw and the handle, both end ends being mounted in a cage at a distance smaller than the diameter of the stud, and a wing nut is used as a locking element, the diameter of the base of which exceeds the distance between the end ends of the screw and the handle. 2. The ice drill according to claim 1, characterized in that the cutting head is made to provide working rotation counterclockwise. 3. The ice drill according to claim 1, characterized in that the cutting head is made to provide clockwise rotation.