HURDLE BOOM HOLDER

Abstract: A holder for a hurdle boom meant to support a boom (10), said holder consists of a gliding part (1) which is sleeve-like and mounted round a pillar and can be moved vertically on said pillar, and a support part (2) on which the end of the boom (10) can be supported. The sleeve-like gliding part has been broken off at one point and the locking apparatus for gliding part is formed by a tightening apparatus, which at the break point is pulling the opposite edges of the gliding part towards each other causing that the gliding part presses against the pillar.

Description: HURDLE BOOM HOLDER An invention relates to a cupholder for a hurdle boom. The boom is supported by the cupholder to a desired height by tightening the cupholders on vertical pillars so that the boom has right high situation. Formerly it is known a boom support which is presented in German publication nr 2 311 697. That support can be moved in vertical direction and turned on a pillar which has a round cross-section. This boom support is locked by tightening a brake wedge against the surface of the pillar. The wedge is standing out from a sleeve-like gliding part. The holder consists an extension, on which the boom is situated. Above mentioned boom holder has very harmful shortcoming. It is impossible to get the pressing force repeatedly the same after one or several openings. The boom support has to give in during training use when pressed down with a certain force. Because that kind of tightening apparatus has no control for locking force, it is impossible to tighten the holder over and over again so that the locking force should be the same. The gliding part of the holder is so wide on the pillar that it can turn crosswise a little when the holder is locked on the pillar. This is causing inestimable locking forces because the gliding part or the pressing wedge can press even depressions in the pillar surface with their sharp edges. With the cupholder according to the invention is prevented these shortcomings and the invention have those characters which have been presented in the patent claims. The most important advantages of the invention can be considered the controlled locking of the boom holder when the locking force can be set beforehand and the holder has the same tightening which is maintaining after several openings. The turning of the holder round the pillar can be prevented by using polygon pillars and correspondent polygon gliding parts of the holders. The holder has to stay in its place during the race also when the boom is falling down. In this case the polygon pillar is advantageous preventing the turning of the holder. During training use round pillars are safe because holders can give in downwards and turn round the pillar. The moving and turning of the holder on the pillar can be made easier by locking apparatus when the diameter of sleeve-like gliding part is opened greater with said locking apparatus. In the following, the invention is described in detail with references to the attached drawings. Fig. 1 represents a cupholder, seen from above. Fig. 2 represents a cupholder opened,. seen from above. Fig. 3 represents a front view of a cupholder. Fig. 4 represents a front view of another cupholder. Fig. 5 represents a combined hurdle, seen inclinedly. Fig. 6 represents an end of a boom supported by a cupholder according to the invention. In the figure 1 is shown a boom holder, which has a round gliding part 1. A cup-like support 2 is fixed to the gliding part. A sleeve-like gliding part has been broken off when it can bend and tighten round a round pillar. To the ends of the break points of the gliding part has been fastened a tightening apparatus. To the other end has been fastened an opposite part 4 and to the other side tightening apparatus 3. The opposite part 4 has bendings at its both ends so that the loop 11 of the tightening apparatus can both pull when tightening and push when opening the gliding part 1. The loop consists a threaded extension towards the apparatus 3 which has corresponding nut for the threaded extension. The lenght of the extension can be adjusted by turning the loop and thus the pressing force of the gliding part 1 can be adjusted. In the figure 2 is corresponding boom support arrangement round 12-angled pillar 6 where also the gliding part 5 is 12-angled. The opposite part 8 of the tightening apparatus 7 is short that greater opening can be achieved and the polygon gliding part 5 can be turned round the pillar 6. In the figures 3 and 4 are cup-like holders 2, 9 where the cups have different depths for adjusting the boom stability. In the figure 5 has been constructed a combined hurdle using several pillars 6 and booms 10 and cupholderε according to the invention. The pillar have several cupholders when is formed a fan-like hurdle and an usual hurdle. The directions and the heights of the booms can be choosed stepless using round pillars and the directions of the booms can be choosed of the available angles when using polygon pillars. In the figure 6 is presented a round pillar 12 and a holder tightened round said pillar. A cup-like holder 2 supports the boom 10. The gliding part 1 has been tightened by locking apparatus as presented in figure 1. The cupholder is tightened to a certain tightness being able to give in downwards if a horse is falling on the boom. The tightening mechanism is maintaining the adjusted press until the loop 11 is turned. Thus the cupholder can be mounted easily in the same position and tightness repeatedly. The cupholder is held by friction repeatedly in the same condition against downwards pressing forces especially if one or both of the parts, holder or pillar is made of plastic. When using polygon pillars no turning of the holder is happened but only giving in downwards if the holder is in training tightness. The remountings of the booms, particularly with the fan-like hurdles, are easy because the polygon pillar determines the directions of the booms based on numbers of the angles of the pillar. The invention, however, is in no way restricted to the above example. Modifications can be done within the limits of the invented idea as defined in the following patent claims.

Claims: CLAIMS 1. A hurdle boom holder to support a boom (10), said holder comprising a sleevelike gliding part (1,) mountable around a pillar and vertically movable on said pillar, and a support part (2) on which the boom end can be rested characterized in that the sleevlike part is broken-off at one point and that the gliding part locking apparatus is comprised of a tightening apparatus which at the broken-off point forces the opposite edges of the gliding parts towards each another thus causing pressure from the gliding part against the pillar. 2. A holder according to claim 1 characterized in that opening and retightening of the tightening apparatus does not change the preadjusted tightening effect of the gliding part with respect to the pillar. 3. A holder according to claim 1 or 2 characterized in that the tightening apparatus is adjustable and that the gliding part (1,5) diameter is widened by means of said apparatus with respect to the pillar in order to facilitate the gliding part sliding along/turning around the pillar. 4. A holder according to claims 1 - 3 characterized in that when the pillar has a circular cross-section then the cross-section of the gliding part (1) inner periphery is also circular . 5. A holder according to claims 1 - 3 characterized in that when the pillar (6) has a polygonal cross-section then the cross-section of the gliding part (5) inner periphery is also polygonal . 6. A holder according to one or more of the previous claims characterized in that the cup-formed base, an extension of the gliding part (1,5) functions as supporting part (2,9) for the boom (lθ)end, allowing it to drop when hit.

Inventors: ELORANTA ERKKI MATIAS, ELORANTA, ERKKI, MATIAS
Applicants: ELORANTA ERKKI MATIAS, ELORANTA, ERKKI, MATIAS
Application year: 1991
Main classification: A63K3
IPC codes: A63K3