DE1180287B - Blade protection for tubular frame skates - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Boarding school Class: A 63 c

German class: 77 b - 3/12

Number: 1180 287

File number: C 25394 Ic / 77 b

Filing date: October 30, 1961

Opening day: October 22, 1964

Tube frame ice skates generally have a runner support tube to which the actual runner is attached is. The runner ends in a free end. With the grinding of the from time to time This skid is pointed downwards at the rear end, which makes this pointed end extraordinary becomes dangerous. Especially at ice hockey games, where it was very quick and often inconsiderate there is a risk of injury.

To avoid these dangers, a blade guard has already been proposed that the rear Covering the end of the runner support tube and over the end of the runner from a protruding buffer in particular forms elastically deformable material.

However, this known runner protection is not free from disadvantages. In particular, there is in the previously known Proposal the risk that the runner protection will be stripped off while walking, because he is with resilient clamping effect is placed on the support tube end. The danger of shedding the familiar The blade guard is reinforced by the fact that the rear pipe section on which the blade guard is attached is easy to compress because its strength against bending is not very great.

The invention has set itself the task of avoiding these disadvantages of the known runner protection.

In the case of a runner protection at the rear end of the runner support tube, consisting of tubular frame skates from a covering the rear end of the runner support tube, over the rear end of the Skid protruding buffers made in particular from elastically deformable material, this is according to the invention basically achieved in that the buffer is inserted into the end of the runner support tube against Rotation about its longitudinal axis in the runner support tube has secured shaft.

The invention achieves that as a result of the secured against rotation about its longitudinal axis Shank a loosening of the blade protection can no longer occur, while at the same time by the Shaft a bending of the runner support tube is excluded.

Incidentally, the invention can be practically carried out in various ways. As has been expedient the invention recognized the buffer with an edge shoulder of larger diameter than the shaft diameter to be provided, which covers the face of the rear end of the runner support tube. Through this sharp edges of the runner support tube are also reliably secured. According to another suggestion the invention is the end face of the edge shoulder as a counterpart to the curvature of the end face of the Blade protection for tubular frame skates

Applicant:

Canada Cycle and Motor Company Limited,

Weston, Ontario (Canada)

Representative:

Dipl.-Ing. R. H. Bahr

and Dipl.-Phys. E. Betzier, patent attorneys,

Herne, Freiligrathstr. 19th

Named as inventor:
William Chester Shaw,
Streetsville, Ontario (Canada)

Claimed priority:

Canada of December 19, 1960 (813 203),

Great Britain April 15, 1961 (13 668)

rear end of the runner support tube curved downwards and backwards from the upper apex, and at the lower end it merges into a downwardly protruding nose, which is the rear end of the runner covers on the front and on both sides.

It is also expedient to provide an intermediate space between the shaft and a peripheral shoulder that surrounds it, which into an intermediate space a nose protruding downward from the round shoulder passes over and both spaces are cap-like to be grasped over the rear end of the runner tube and the runner. An additional backup of the new blade protection is according to another feature of the invention by a shaft in the achieved rear end of the support tube by a cross pin penetrating both parts

The technical advantages that can be achieved by the subject matter of the invention are above all that the runner protection reliably at the rear end of the support tube in its the one created by the grinding of the runner Point covering layer is held so that the runner protection can not be lost or becomes ineffective in any other way. In addition, the blade protection provides a desired reinforcement of the rear end of the runner support tube, which consequently no longer deforms can only secure the blade protection more reliably in the event of deformation.

409 708/22

The invention will now be based on several exemplary embodiments shown in the figures the drawings are illustrated, explained in more detail; it shows

F i g. 1 is a perspective view of a blade guard according to the present invention in a first embodiment,

F i g. 2 is a partial side view of the rear part of a tube frame skate, in which the runner tube is provided with the blade protection,

F i g. 3 is a partial plan view of the rear end of the tubular frame skate;

F i g. 4 is a rear view of the tubular frame skate with the blade guard attached,

F i g. 5 is a perspective view of a modified embodiment of a blade guard according to FIG the invention,

F i g. 6 is a partial side view of the rear end of a tubular frame ice skate such as that used as an ice hockey skate is used to reproduce the attached runner protection, which is partially used for clarification is drawn in section,

F i g. 7 shows a section essentially along line 7-7 of FIG. 6 and

F i g. 8 is a cross section taken substantially along line 8-8 of FIG. 6.

In the figures of the drawings, A denotes the rear part of a tubular frame skate, according to the illustrated embodiments of an ice hockey skate. The tubular frame skate has a runner support tube 10 of the usual embodiment, to which the runner 11 is attached in a known manner. The runner support tube and runner terminate in a free end 12.

When sharpening the runner by hollow grinding, the runner generally decreases in height and is often sharpened more towards the end, so that it ends in a point, as in dash-dotted lines Lines in Fig. 2 is reproduced.

The runner protection consists of a buffer B, which protrudes backwards over the rear end of the runner and thus prevents possible cuts. The rear end of the runner support tube receiving the runner 11 is open and preferably cut off after a receding curve 14. The buffer made of, in particular, an elastically deformable material, such as nylon or polyethylene, has a truncation 15, the diameter of which is greater than the cross section of the runner support tube 10. The buffer B is preferably provided with an edge shoulder 16 which adapts to the upwardly receding curve 14 of the rear end of the runner support tube 10 and rests on the cut edges of the tube so that this shoulder forms a cover for these tube edges.

The buffer has a shaft 17 inserted into the end of the runner support tube 10 and secured against rotation about its longitudinal axis in the runner support tube 10. The diameter of the shaft corresponds essentially to the inner diameter of the tube 10, so that the shaft can be inserted tightly into the tube and thus the buffer B can be firmly attached to the rear end of the runner support tube. The buffer is preferably provided with a downwardly protruding nose 18 with a shoulder 19 which grip the upper rear end of the runner and overlap the flanges 20 of the pipe carrying the runner 11.

The shaft 17 can by various means, for example by a tight friction fit between the inner surface of the runner support tube and the outer surface of the shaft 17 are attached. Suitable for this Also a suitable cement, for example an epoxy cement, especially if the blade protection is made of plastic according to the above.

According to the illustrated embodiment, the shaft 17 is the rear end of the support tube with the aid of one and the shank 17 penetrating transverse pin 21 secured. This can cause a damaged Easily buffer by pulling off the cross pin, inserting a new buffer and pinning again be replaced.

According to the modified embodiment of the invention shown in FIGS. 5 to 8, the tubular frame skate A 'has a buffer B' which has a truncation 22, the diameter of which is greater than the cross-sectional dimensions of the runner support tube 10. A cylindrical shaft 23 is provided on the buffer, which, starting from the buffer, merges into a free end 24. The diameter of the shaft is chosen so that it is closely matched to the inside diameter of the runner support tube 10. The much larger truncated buffer essentially corresponds to that in FIGS. 1 to 4 reproduced embodiment. However, the in the F i g. 5 to 8 differ from the first described in that the buffer is spaced at 25 so that a base is formed which over a considerable distance overlaps the main part of the shaft in the vicinity of its connection to the buffer. This base extends radially over the shaft, so that a continuous space 26 provided with a recess is formed. Therefore, if the shaft 24 is inserted into the open end of the runner support tube 10 of the skate, then the rear end of the runner support tube according to FIG. 6 includes. The shaft 23 is preferably located inside the tube in accordance with FIG. 2 fastened with the aid of a transverse pin 27. Of course, the attachment can also be achieved with the aid of a suitable adhesive or cement. Regardless of the type of fastening, however, the space 25 between the shaft 23 and the round shoulder surrounding it, which merges into a space 26 of a nose protruding downward from the round shoulder, always serves as a cap-like enclosure of the rear end of the runner support tube and the runner.

Claims (5)

Patent claims: 1. Runner protection at the rear end of the runner support tube of tubular frame skates, consisting of a rear end of the runner support tube covering, over the rear end of the runner protruding buffer made of in particular elastically deformable material, characterized in that the buffer (B, B ') one in the end of the runner support tube (10) has an inserted shaft (17, 23) secured against rotation about its longitudinal axis in the runner support tube (10). 2. Skid protection according to claim 1, characterized in that the buffer (B) has an edge shoulder (16) of greater diameter than the shaft diameter, which covers the end face of the rear end of the runner support tube. 3. runner protection according to claim 1 and 2, characterized in that the end face of the Edge shoulder (16) as a counterpart to the curvature of the face of the rear end of the runner support tube from the upper apex is curved downward and backward and at the lower The end merges into a downwardly protruding nose (18), which is the front end of the rear end of the runner and covers on both sides. 4. skid protection according to claim 1 and 2, characterized in that between the shaft (23) and a round shoulder surrounding it, an intermediate space (25) is provided, which in a Gap (26) a nose protruding downward from the round shoulder passes over, and both gaps like a cap over the rear end of the runner support tube and the runner grasp. 5. runner protection according to claim 1 to 4, characterized in that the shaft (17, 23) in rear support tube ends is secured by a cross pin penetrating both parts (21,27). Considered publications:
U.S. Patent No. 2,446,475. 1 sheet of drawings +09 708/22 10.64 © Bundesdruckerei Berlin