JP2015160025A - Split board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a split board, which offers a lot of benefits through functions thereof but forces a user to do the conversion work from a hill-climbing walking ski state to a snow board sliding state on a snow mountain and has undeniable demerits in weight and slide performance compared to general snow boards, which has the largest disadvantage that the workability is hard on a snow mountain where every imaginable conditions could happen and imperfections exist as a snow board, and in which the ideas for improving easier conversion work from the time of hill-climbing skiing to the time of snow board sliding, accuracy and assurance of positioning and fixing are important elements always required to be advanced for enjoying back-country snow board safely in snow mountains.SOLUTION: A split board of the present invention has joint surfaces (split surfaces) formed in a wavy line and the wavy joint surface shape is designed so that the two plates can be securely connected only at a determined point when being combined.

Description

  The present invention relates to a split board having a corrugated joint surface (divided section).

  The split board is one of the main tools for enjoying snowboarding in the backcountry. When climbing, the snowboard is divided into two vertically, and it is a snowboard with a function that can be used by attaching it to both feet like skiing. . (See Patent Document 1)

  When climbing, the snowboard is divided into two as walking skis, and the binding is attached to each board in the vertical direction, like skiing, and the climbing skin is attached to the sole. In order for a snowboarder to climb a snowy mountain on foot, it is indispensable in snow walking to obtain buoyancy with a snowshoe or a split board.

  When sliding down, the two boards are joined together in the shape of a snowboard, and the board is slid with a binding set like a general snowboard.

Utility Model Registration No. 3087529

The above-mentioned split board can receive many benefits due to its function, but the conversion work has to be done on the snowy mountain in order to change from the state of walking ski when climbing up to the state of snowboard when sliding. The disadvantages in terms of weight and sliding performance compared to ordinary snowboards cannot be denied.
From the state of walking and to the state of snowboarding, the two boards are usually combined by the structure of the binding designed exclusively for each of the four nose parts and the tail part of the board and the shape of the snowboard. It has a structure.
When two boards are combined, they are aligned with clips attached to the nose and tail parts of the snowboard, and the two boards are fixed by attaching a dedicated binding. The snowboard joined only by attaching the clip and the binding was not clearly perfect in terms of sliding performance as compared with a general snowboard made of a single board.
The difficulty of workability on snowy mountains where all conditions are assumed and imperfections as snowboards are the main disadvantages of splitboards. The idea of improving the ease of use, the accuracy of positioning and mounting, and the reliability of the conversion from ski climbing to snowboarding is an important requirement that must be constantly evolved to enjoy backcountry snowboarding safely in winter mountains. Is an element.

  In the present invention, the joining surface (split section) of the split board is constituted by a wavy line, and when the two plates are combined, the corrugated joining surface shape designed so as to be surely combined only at the determined one point. A split board.

  According to the split board having the corrugated joint surface (divided cross section) according to the present invention, the position of the split board divided into two pieces at the time of walking is adjusted by the wavy cross sectional shape when the split board is fastened as one snowboard. Can be performed clearly and reliably, and not only can speed up the conversion work in the snowy mountains, but the combined two plates can suppress the displacement by the shape of the plate itself, so it is straight as before Compared with the state in which the two plates separated by (2) are joined and held only by clips and bindings, the joining property is greatly improved. Therefore, imperfections in the snowboard state are reduced more than before, and the problems of instability during snowboarding, displacement between the boards, and sliding performance in which the split board is inferior to snowboarding are greatly improved.

Also, as shown in Fig. 2 when climbing or walking, the corrugated cut surfaces come to the outside of both feet, so edging and gripping with the snow surface when climbing up a slope or hard snow, etc. Power is improved, and safer and more reliable ski climbing is possible.

The split board of the present invention in a snowboard sliding state The split board of the present invention in a state of climbing and walking The figure which shows the width | variety of the wavy line of a junction surface shown in 1st Example, and length The figure which shows the taper angle of the wavy joining surface shown in 2nd Example

As shown in FIG. 1, when the joining surface (divided cross section) of the split board is constituted by a wavy line and two plates are combined, it can be surely combined only at the determined one point.
Dividing into two snowboards, a tool that is used for climbing as a ski, such as a split board, splitting with a wavy line from the conventional method of dividing the center into straight lines. The width of the wavy line (W in FIG. 3) is about 50 mm or less as a whole, and the length (L in FIG. 3) is about 50 mm to 500 mm. Of course, excessive curves, angles, and cutting shapes may adversely affect the sliding performance. Therefore, it is desirable to create a wavy shape that matches the length of the split board and the target layer that will be used. Generally, the section is usually provided with an iron or stainless steel edge, but it does not matter if there is an edge.

It is also effective to taper the split board wavy line section of the first embodiment (a in FIG. 1) at an angle of about 20 ° or less in the elevation direction as shown in FIG. When the two plates are put together, the section corresponding to the taper angle has a tapered shape in the opposite direction along that (ab or ef in FIG. 4). This taper angle is formed so that the left and right taper angles are alternately combined in accordance with the wavy line section, and the cross section further suppresses vertical movement in a snowboard state where two plates are joined together, and slides Significantly improve the holding state of the split board in time.
That is, in the cross section intersecting with the longitudinal direction of the board, the angle of the dividing surface periodically fluctuates (the portion where the dividing surface is inclined in one direction with respect to the line orthogonal to the plane of the board, one It has a part inclined in the opposite direction to the direction of, and the inclination gradually increases in one direction and becomes a predetermined value and then gradually decreases, gradually increases in the opposite direction and becomes a predetermined value. It gradually fluctuates to become smaller).

a Joint surface (divided section)
b Metal clip c Binding mounting hole d Walking binding mounting hole
e Resin clip W Wavy line width L Wavy line length ab cross section 1
cd cross section 2
ef cross section 3

The split board of the present invention is characterized in that the split section of the split board has a wavy shape for alignment.
That is, the corrugated joint surface is designed so that the joint surface (split section) of the two plates that make up the board is composed of wavy lines, and when the two plates are combined, they are reliably combined only at that one point. It has a shape.

Claims (3)

  A split board characterized in that the split board has a wavy cross section. The split board according to claim 2, wherein in the cross section intersecting with the longitudinal direction of the board, the partial cross section has an inclined portion. The split board according to claim 2, wherein the angle of inclination of the divided cross section varies periodically.