CS262135B1 - Adjustable fork - Google Patents

Abstract

The adjustable fork consists of a sliding telescopic rod and a telescope tube, at the end of which a flexible closure is mounted, the narrowed part of which forms a surface that is in contact with the telescope rod around its entire circumference.

Description

BACKGROUND OF THE INVENTION The present invention relates to an adjustable fishing fork for supporting a fishing rod when fishing on a laid.

In the prior art adjustable forks it is used to adjust the length of various methods, the best known of which is an adjusting screw, usually with a wing head, screwed into a nut formed on the collar of the hollow part of the fork. Tightening the screw creates the radial frictional force required to secure the selected fork length. The disadvantage of this embodiment is the damage of the telescopic sliding part of the telescope by the screw face, the surface protection of this part and the possibility of water penetration into the telescope during the rain.

Another known embodiment utilizes the elasticity of the end of the hollow part obtained by longitudinally cutting the tube. A tapered thread is then formed at the end of the pipe and the knurled lock nut is tightened. The frictional force is obtained by tightening the nut and thereby pressing the pipe end. In other embodiments, the thread is replaced by a self-locking cone which generates the necessary frictional force when pressing the snap ring with the conical bore.

A common disadvantage of these solutions is the difficulty of handling moisture and temperature changes. Furthermore, production intensity and leakage against water ingress during rain, fog and snowfall.

The above-mentioned drawbacks are eliminated by the adjustable fork according to the invention, which is based on the telescopic tube design with a tip on one end and on the other end with a flexible closure, the tapered part of which forms a sealing surface which fully abuts the telescopic rod. that has one end forked. Optionally, the resilient closure may be formed from a resilient flexible tube.

The flexible shutter fitted at the end of the pipe creates sufficient bias to fix any length of the extended rod and to ensure waterproofness. Length adjustment is simple and quick. The adjustable forks are simple to manufacture and more economical than known forks. The accompanying drawing shows an exemplary embodiment of an adjustable fork according to the invention in longitudinal section.

An elastic closure 2 is fixedly attached to the telescope tube 1, the tapered portion 3 of which has a sealing surface 4 generating sufficient preload on the telescope rod 5 to fix any length of telescope rod extension 5 while ensuring water tightness. The basic value of the frictional force can be adjusted if necessary by slightly bending the end of the telescope rod 5. In the case of a flexible closure 2 of a flexible tube of constant cross-section, the flexibility of this tube must be so high that telescope 1.

Claims (1)

Adjustable fork consisting of a telescope tube provided with a tip at one end and a telescopic telescopic rod retractable at the other end, characterized in that: BACKGROUND OF THE INVENTION At the other end of the telescope tube (11), a resilient shutter (2) is fitted, the tapered portion (3) of which forms a sealing surface which is completely adjacent to the telescope rod.