JP2003200831A - Snow scooter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a snow scooter in which a rear board has an improved flexibility and which glides easily on irregular snow surfaces and has a small turning circle and an enhanced operability. <P>SOLUTION: The snow scooter includes a front board and the rear board for gliding on the snow; a handle frame which is fixed at a lower end thereof to an upper surface of the front board and has a handle at an upper end thereof; and a main frame which is fixed at one end thereof to an upper surface of the rear board and supports the handle frame turnably. The rear board and the main frame are fixed with bolts at a plurality of points, and at each of the fixing points, flexible members are interposed between the rear board and the main frame, and between the main frame and the bolt, respectively. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a snow scooter capable of sliding on snow like a bicycle and having improved operability.

[0002]

2. Description of the Related Art Winter sports In particular, sports on snow have been diversified in recent years, and in recent years, a snow scooter capable of gliding on snow like a bicycle has been attracting attention, including skiing and snow boating.
There are also plans to start cycling on snow with a snow scooter. A snow scooter is generally a snowboard or ski instead of a bicycle wheel.

Although such a snow scooter has just been developed, it has various points to be improved. For example, with respect to the frame, initially, based on the frame of the bicycle, development of a product which is not found in the bicycle and has various problems on snow is improved. In addition, about the board for gliding, based on skis and snowboards,
Development is also in progress to improve various problems not found in skis and snowboards. For example, JP-A-7-194
See Japanese Patent Laid-Open No. 759 and Japanese Patent Laid-Open No. 9-295582.

[0004]

As described above, the snow scooter, which has just been developed, has room for improvement. For example, the snow scooter having the structure described in Japanese Patent Laid-Open No. 9-295582 is The rear board and the supporting portion extending in the longitudinal direction of the rear board of the main frame are directly fixed by bolts. Further, since the supporting portion is made of a metal frame and the length reaches about 70% of the rear board, even if some cushioning material is inserted between the rear board and the supporting portion, the flexibility of the rear board does not increase. , Much smaller than skis and snowboats. for that reason,
When gliding on an uneven snow surface, the board bends in accordance with the unevenness of the snow surface like skis and snow boats, and it is not possible to glide on the snow surface. Also, when making a turn, there is a drawback that it is difficult to make a small bounce turn (wadern turn in skiing) by utilizing the elasticity (bend) of the board.

Therefore, an object of the present invention is to provide a snow scooter with improved operability, in which the flexibility of the rear board is further enhanced, and it is easy to glide even on a snowy surface having irregularities and to make small turns. To do.

[0006]

Means for Solving the Problems The present invention for solving the above problems is as follows. [Claim 1] A front board and a rear board for sliding on snow, a handle frame having a lower end fixed to an upper surface of the front board and a handle at an upper end, and one end fixed to an upper surface of the rear board, and A snow scooter including a main frame that rotatably supports a handle frame, wherein the rear board and the main frame are fixed by bolts at a plurality of points, and at each fixing point,
A flexible member is interposed between the rear board and the main frame,
A snow scooter characterized in that a flexible member is interposed between the main frame and the bolt. [Claim 2] The snow scooter according to claim 1, wherein the bolt is fixed to the rear board via an auxiliary plate fixed to an upper surface of the rear board. [Claim 3] The snow scooter according to claim 1 or 2, wherein the flexible member interposed between the rear board and the main frame is a rubber member or a spring. [Claim 4] The snow scooter according to any one of claims 1 to 3, wherein a flexible member is interposed between the nut of the bolt and the main frame. [Claim 5] The snow scooter according to claim 4, wherein the flexible member interposed between the nut of the bolt and the main frame is a spring or a rubber member. [Claim 6] The main frame includes at least two tubes extending in the longitudinal direction of the rear board, and each tube is fixed to the rear board at at least two locations. The snow scooter described in the item. [Claim 7] The gap between the rear board and the main frame is
It is a range of 10 to 50 mm.
The snow scooter described in the item.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The outline of the structure of the snow scooter of the present invention will be described with reference to FIG. The snow scooter 10 of the present invention includes a front board 20 and a rear board 30 for sliding on snow, a handle frame 40 having a lower end fixed to an upper surface 21 of the front board 20 and a handle 41 at the upper end, and a rear board 30. It includes a main frame 50 having one end fixed to the upper surface 31 and rotatably supporting the handle frame 40. The snow scooter is generally called a snow bike, a snow bicycle, or the like, and may have the following mechanism or structure in addition to the above. (1) A mechanism for cushioning the impact between the lower end of the handle frame 40 and the upper surface 21 of the front board 20. (2) A structure in which the lower end of the handle frame 40 is bifurcated, and the end of the bifurcation is fixed to the upper surface 21 of the front board 20. (3) A structure in which the lower end of the main frame 50 is bifurcated, and the end of the bifurcation is fixed to the upper surface 31 of the rear board 30. (4) A mechanism capable of adjusting the height by moving the handle 41 up and down. (5) Fixing means 60 for the user to fix his / her foot on the upper surface 31 of the rear board 30. (6) Braking means on the upper surface 31 of the rear board 30. (7) Longitudinal grooves are formed on the snow contact surface of the sliding surface of the front board 20 and / or the rear board 30.

In the snow scooter of the present invention, the rear board and the main hood are fixed by bolts at a plurality of points, and at each fixed point, a flexible member is interposed between the rear board and the main hood. In addition, a flexible member is interposed between the main frame and the bolt.
This point will be further described with reference to FIG. Rear board 30
The main frame 50 and the main frame 50 are fixed to each other by bolts (not shown) at a plurality of points. At each fixed point, the flexible member 60 is interposed between the rear board 30 and the main frame 50, and The flexible member 70 is interposed between the main frame 50 and the bolt.

FIG. 3 is an enlarged view of the fixed portion of FIG.
In FIG. 3, the bolts 80 for fixing the rear board 30 and the main frame 50 are arranged on the rear board 30 and the rear board 30.
Is fixed via an auxiliary plate 90 (for example, a steel plate) fixed to the upper surface of the. Auxiliary plate 90
Are fixed to the upper surface of the rear board 30 at a plurality of locations with bolt pins (not shown) and nuts 91. The tip of the bolt 80 is embedded in the auxiliary plate 90, and if necessary, fixed by welding or the like. The flexible member 60 interposed between the rear board 30 and the main frame 50 may be an elastic body such as rubber or a spring, and the flexible member 60 is provided so as to surround the bolt 80. Also, the rear board 30
And flexible member 60 interposed between the main frame 50 and
Is a coil spring, as shown in FIG. 4, and, as shown in FIG.
It may be a flexible member including a spring 62 and a spring.

When the flexible member 60 is an elastic body such as rubber, the structure is simple, but it is difficult to adjust the hardness. On the other hand, when the flexible member 60 is a combination of a coil spring or a pantograph type arm pedestal and a spring,
Compared with the case of using an elastic body, there are advantages that the hardness can be easily adjusted and that flexibility does not change significantly even when the operating temperature changes. Further, when the flexible member 60 is an elastic body such as rubber or a coil spring, the flexible members 60 adjacent to each other in the width direction expand and contract relatively independently according to the load applied to each, so that the flexible board 60 and the rear board are The lateral (widthwise) movability with respect to the main frame 50 becomes high, and the operability of the snow scooter becomes relatively easy, which is suitable for beginner and intermediate snow scooters. On the other hand,
When the flexible member 60 is a combination of a pantograph-type arm pedestal and a spring, the flexible members 60 adjacent in the width direction are used.
However, the degree of expansion and contraction depending on the load applied to each is smaller than that of an elastic body such as rubber or a coil spring. Therefore, the lateral (widthwise) mobility between the rear board and the main frame 50 is reduced, and the difficulty of operating the snow scooter is increased, but the operability during high-speed downhill is improved, and it is possible for advanced players and athletes to compete. Suitable for use.

In the snow scooter of the present invention, the flexible member 70 is interposed between the main frame 50 and the bolt 80. More specifically, as shown in FIG.
A flexible member 70 such as a spring may be interposed between the nut 81 provided on the upper end of the main body 50 and the recess 51 of the main frame 50. The flexible member 70 interposed between the nut 81 and the main frame 50 (the recess 51) can be, for example, a spring. Also, the nut 81
A washer 82 may be provided between the flexible member 70 and the flexible member 70.

By tightening or loosening the bolt 80 using the nut 81, the flexible member 70 (spring)
It is also possible to adjust the strength of the rear board 30 with respect to the main frame 50 by adjusting the strength of the rear board 30 and the strength of the flexible member 60. The flexible member 70 can also be formed of a rubber member as shown in FIGS. In the case of a rubber member, the strength of the flexible member 70 cannot be adjusted by tightening or loosening it with a nut 81 like a spring.
However, the movement of the bolt 80 can be suppressed without limiting the movement of the rear board 30. As a result, the mainframe 50
The rear board 30 can be deformed according to the change of the snow surface while suppressing the movement between the bolt 80 and the bolt 80, and the operability suitable for intermediate and advanced users, which is often operated at relatively high speed.

In the snow scooter of the present invention, the bolt 8
Although 0 is fixed to the upper surface of the rear board 30 via the auxiliary plate 90, since the flexible member 70 is interposed between the main frame 50 and the bolt 80, the movement of the bolt 80 due to the bending of the rear board 30. Can be transmitted to the main frame 50 while being absorbed by the flexible member 70 to some extent. In other words, the bending of the rear board 30 is not hindered by the main frame 50 due to the interposition of the flexible member 70. As a result, there is an advantage that the rear board 30 can be moved relatively easily by a change in the snow surface or a user (driver) operation, and improved operability can be obtained.

The main frame 50 includes at least two tubes extending in the longitudinal direction of the rear board 30, and each tube is fixed to the rear board 30 at at least two places. Have. From the viewpoint that the flexibility of the rear board 30 is not impaired by the main frame 50, the above-mentioned fixing points are 2
It is preferable to set it in one place.

In the snow scooter of the present invention, the gap between the rear board and the main frame is preferably in the range of 10 to 50 mm. If the distance is 10 mm or more,
The mobility (flexibility) of the rear board can be sufficiently secured. Further, if the gap between the rear board and the main frame is too large, the riding position may be too high and the stability may be poor, but if it is 50 mm or less, such a problem does not occur. Further, in the snow scooter of the present invention, since there is a certain distance between the rear board and the main boom 50, it is possible to increase the distance between the main boom 50 and the snow surface (snow surface of the rear board). Even if the snow scooter is turned at a steeper angle, there is an advantage that the mainframe 50 is less likely to come into contact with snow.

[0016]

According to the present invention, the flexibility of the rear board is further enhanced, and as a result, shock absorption is enhanced, and it is easy to glide even on uneven snow surfaces, and it is easy to make small turns.
It is possible to provide a snow scooter with improved operability.

[Brief description of drawings]

FIG. 1 is a schematic view showing the structure of a snow scooter of the present invention.

FIG. 2 is an explanatory view of a fixing portion between a rear board and a main frame of the snow scooter of the present invention.

FIG. 3 is an enlarged view of a fixing portion between a rear board and a main frame of the snow scooter of the present invention.

FIG. 4 is an enlarged view of a fixing portion between the rear board and the main frame of the snow scooter of the present invention.

FIG. 5 is an enlarged view of a fixing portion between a rear board and a main frame of the snow scooter of the present invention.

FIG. 6 is an enlarged view of a fixing portion between the rear board and the main frame of the snow scooter of the present invention.

FIG. 7 is an enlarged view of a fixing portion between the rear board and the main frame of the snow scooter of the present invention.

FIG. 8 is an enlarged view of the fixing portion between the rear board and the main frame of the snow scooter of the present invention.

Claims (7)

[Claims] 1. A front board and a rear board for sliding on snow, a handle frame having a lower end fixed to an upper surface of the front board and a handle at an upper end, one end fixed to an upper surface of the rear board, and A snow scooter including a main frame that rotatably supports a handle frame, wherein the rear board and the main frame are fixed by bolts at a plurality of points, and at each fixed point, the rear board and the main frame are A snow scooter characterized in that a flexible member is interposed between the mainframe and the bolt, and a flexible member is interposed between the mainframe and the bolt. 2. The snow scooter according to claim 1, wherein the bolt is fixed to the rear board via an auxiliary plate fixed to an upper surface of the rear board. 3. The snow scooter according to claim 1, wherein the flexible member interposed between the rear board and the main frame is a rubber member or a spring. 4. The snow scooter according to claim 1, wherein a flexible member is interposed between the nut of the bolt and the main frame. 5. The snow scooter according to claim 4, wherein the flexible member interposed between the nut of the bolt and the main frame is a spring or a rubber member. 6. The main frame includes at least two tubes extending in the longitudinal direction of the rear board, and each tube is fixed to the rear board at at least two positions. The snow scooter described in the item. 7. The gap between the rear board and the main frame is
It is a range of 10 to 50 mm.
The snow scooter described in the item.