FI77818C - NABBSKO FAESTBAR VID FORDONSHJUL. - Google Patents

Description

1 77818

A hockey shoe to be attached to the wheel of a vehicle. - Nabbsko fästbar vid fordonshjul.

The invention relates to a hockey shoe for fastening to a wheel of a vehicle, comprising a circumferentially mounted plate-like frame part on the tread of a wheel tire, and fastening members for fastening to the disk wheel, to which the hockey shoes can be fastened by chains or the like.

Hockey shoes of this type are already known, for example, from the following patents FI 34130, GB 1 066 177, US 4 159 731 and FR 2 039 473. However, the design and attachment of these hockey shoes are poorly solved. When hockey shoes are used, for example, to remove a stuck tractor, in which case the Driving Rear Wheel is partially submerged, the Hockey must be able to effectively grip the crossbars fed in front of the wheel. On the other hand, recessed wheel grooves are often pre-set with longitudinal longitudinal trees on which the recessed points are crossed. The shape of the hockey shoe should be such that it guides and holds the traction rear wheel over the elongated trees rather than causing a lateral slip off over the elongated trees.

The attachment of the hockey shoe should be solved in a way that does not depend on the structure of the disc wheel. The attachment must be such that the hockey shoe cannot move in the circumferential direction of the vehicle wheel. In addition, the attachment must be such that the hockey shoe does not deform and become wedged on the sides of the tire, even under the severe stresses which may occur when the hockey shoe is used to remove the attached vehicle.

However, a hockey shoe should meet the above design and strength requirements without becoming sturdy and unnecessarily heavy.

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The object of the invention is to solve the problems related to the design and fastening of a hockey shoe so that the hockey shoe meets the above-mentioned functional and structural requirements.

This object is achieved on the basis of the features of the invention set out in the appended claims.

In the following, an embodiment of the invention will be described with reference to the accompanying drawings, in which

Figure 1 shows a top view of a hockey shoe according to the invention and

Figure 2 shows the same seen from the side

Figure 3 shows the hockey shoe of Figures 1 and 2 seen from the end side

Figures 4, 5 and 6 show a hockey shoe attachment from three different directions, and

Figure 7 shows a perspective view of one hockey shoe according to the invention in place.

The body part 1 of the hockey shoe consists of a plate curved in its longitudinal direction, the length L of which is substantially greater than the width B and the curvature of which substantially corresponds to the curvature of the tread in the circumferential direction. An opening 12 is formed in the body part 1, the length of which is substantially greater than the width. Hokes 2 are formed at the ends of the body by bending the ends of the plate obliquely away from the plane defined by the plate. The ends of the plate are shaped by cutting so that V-shaped notches 3 are formed on the outer edge of the hooks 2. The height and width of these notches 3 are suitably selected so as to provide effective grip on the trees placed in front of the wheel to lift the sunken wheel.

The hooks 2 are inclined obliquely outwards from the plane of the circumference of the wheel and are supported in place by obliquely upwardly inclined 4 sections 4.

A hole receiving the loop of the fastening chain 15 is formed in the hocks 2. According to Figs. 4 to 6, the fastening piece 6 comprises a fastening hole 8 for fastening to a disc wheel 16 provided with a base plate 7, from the opposite side edges of which the plate parts 9 protrude. The fastening chain loop receiving lugs 10 are formed by cutting into the plate parts 9. The lug 10 has a thinner neck portion 13 and a wider end 14. By measuring the end 14 so that its largest dimension a (length) is greater than the largest inner diameter of the chain of the fastening chain but the smallest dimension s (width) is greater than the smallest inner diameter of the chain loop, the chain loop is threaded to the head. 14 past the neck 13, from which, however, the chain loop does not detach itself. A retaining pin can be placed through the hole 11 in the end 14 against a longer permanent installation.

The two fastening pieces 6 are fastened to each other on opposite sides of the disk wheel 16 by one fastening bolt passing through the holes 8 and the disk wheel 16 (Fig. 7). The disc wheels are usually provided with suitable openings for the bushing of the fastening bolt. If necessary, such an opening can, of course, be drilled or the fastening can also be carried out by welding.

Claims (6)

A hockey shoe to be attached to a wheel of a vehicle, comprising a circumferentially positioned plate-like body portion (1) with hokes (2), which is curved in its longitudinal direction and whose length (L) is substantially greater than the width (B), fastening members for fastening to the disc wheel, to which the hockey shoes can be fastened by means of chains or the like, characterized in that the hockey (2) is formed by plate extensions extending diagonally away from the plane defined by the frame part (1) and having an outer edge provided with a V-shaped notch (3), and the fastening members consist of a fastening piece (6) provided with lugs (10). Hockey shoe according to Claim 1, characterized in that the hockey shoes (2) are supported on the body part (1) by oblique (4). Hockey shoe according to Claim 1 or 2, characterized in that the hockey shoes (2) are provided with fastening elements (5) which receive the fastening chains (15). Hockey shoe according to one of Claims 1 to 3, characterized in that an opening (12) with a length substantially greater than the width is formed in the body part (1). Hockey shoe according to one of Claims 1 to 4, characterized in that the fastening element (6) is formed with a loop-receiving lug (10) of the fastening chain (15) with a thinner neck (13) and a wider end (14) with the largest dimension. (a) is larger than the largest inner diameter of the chain loop of the fastening chain (15), but the smallest dimension (s) is smaller than the smallest inner diameter of the chain loop. ti 5 77818 Hockey shoe according to one of Claims 1 to 5, characterized in that the fastening element (6) comprises a base plate (7) with a fastening hole (8), the opposite side edges of which are raised by plate parts (9) into which the fastening chain loop lugs (10) are formed from sheet material (9) by cutting. 7781 8