JPH0127819Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a cross-country ski that skis well and is strong against upward kicks.

[Conventional technology]

A ski with a horizontal groove formed in the center of the back of the ski to make it difficult to slip and improve climbing characteristics was developed by Tokukai Sho.
No. 52-132937.

However, no matter how good the climbing characteristics of such skis are, they cannot be put to practical use as cross-country skis because their glide performance deteriorates.

[The problem that the idea aims to solve]

The most important thing about cross-country skis is that they are light and glide well, but at the same time, they must also provide a large amount of forward movement when kicked, and this creates a paradox: the better the skis are, the harder it is to kick.

The present invention provides a cross-country ski that is resistant to kicks, especially skating-style kicks, without reducing glide performance.

[Means to solve the problem]

The details are as follows with reference to the accompanying drawings.

The sliding surface of the lower surface of the ski is divided into three parts: a front sliding zone 1, a center kicking zone 2, and a rear sliding zone 3, and polishing grooves 4 are formed on the sliding surface sheets of the front sliding zone 1 and the rear sliding zone 3. The polishing grooves 5 formed in the running surface sheet of the central kick zone 2 are made parallel to the ski length direction to form a fine, smooth, and fluff-free polished surface, and the polishing grooves 5 are parallel to the ski length direction to form a rough, deep and fuzz-free polishing surface. This invention relates to a cross-country ski characterized by having a polished surface without fuzz.

[Effect]

During skiing, since both the polishing grooves 4 and 5 are provided parallel to the longitudinal direction of the ski, they do not impede the skiing performance.

In addition, the front gliding zone 1 and the rear gliding zone 3 have polished grooves 4 formed parallel to the length of the ski to create a finely smooth and fluff-free gliding surface, so it is suitable for upper gliding with low gliding resistance. It also helps in the adhesion of wax, making it a very smooth cross-country ski.

In the case of kicking, especially when kicking in a skating style with the tips of the skis slightly opened outward, force is applied and the central kicking zone 2 comes into pressure contact with the snow surface. Since the polishing grooves 5 are formed parallel to the length of the ski, and are rough and deep, the presence of the polishing grooves 5 resists the sliding movement of the ski when kicked, making the ski easier to kick.

In addition, due to the presence of the polishing grooves 5, the adhesion of the wax aiming at the kicking effect is increased, and the wax remains durable even in the central kicking zone 2 where force is applied and the kicking zone 2 is pressed against the snow surface. Since the cross-country ski is prevented from peeling off, it becomes a cross-country ski that is very easy to kick and has a kicking effect.

Further, since both the polishing grooves 4 and 5 are polished surfaces without fluff, the sliding properties are not hindered.

〔Example〕

To make the polishing grooves 4 and 5, if you use two types of whetstones, a rough whetstone and a finishing whetstone, which have an outer peripheral width wider than the ski width, first use the finishing whetstone to move the ski in the longitudinal direction and grind the entire surface of the running surface sheet. is ground to form a grinding groove 4, and then the central kick zone 2 is ground with a coarse grindstone to form a grinding groove 5.

In addition, when using two types of whetstones, a coarse whetstone and a medium whetstone, first polish the entire surface with the medium whetstone to form the polishing grooves 4, and then use the coarse whetstone to polish the central kick zone 2.
is polished to form polishing grooves 5.

In this way, the polishing grooves 4 and 5 like the product
is obtained.

[Effect of idea]

Since the present invention is constructed as described above, it becomes a cross-country ski that is extremely easy to kick and has an effective kicking effect, with resistance to upward kicking without degrading the skiing performance.

[Brief explanation of the drawing]

The drawing is a plan view of the sliding surface of the ski, and is an explanatory diagram showing the differences in the polishing marks. 1... Front sliding zone, 2... Central kicking zone, 3... Rear sliding zone, 4, 5... Polishing groove.

Claims (1)

[Scope of utility model registration request] The sliding surface on the underside of the ski is divided into three zones: the front sliding zone, the center kicking zone, and the rear sliding zone.
The polishing grooves formed on the sliding surface sheets of the front sliding zone and the rear sliding zone are made parallel to the ski length direction to form fine, smooth, fluff-free polished surfaces, and are formed on the sliding surface sheet of the central kick zone. A cross-country ski characterized by having polished grooves parallel to the length of the ski to form a rough, deep, and fluff-free polished surface.