JP3055880B2 - Swing mechanism of snowboard boots - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swing mechanism for a snowboard boot. More specifically, the present invention relates to a swing mechanism of a snowboard boot in which the legs are required to be tiltable and swingable in the lateral direction and further in the front-rear direction with respect to the shoe sole or the heel, that is, in two axial directions.

[0002]

2. Description of the Related Art Snowboarding is a type of skiing that slides on snow, but differs in that skiing is vertical, while skiing is horizontal. In order to give a propulsive force to the snowboard, the dominant foot located in the forward direction in the traveling direction must lean forward while leaning forward (lean).
That is, the ankle is required to have a laterally inclined posture in addition to the forwardly inclined posture. The movement of tilting outward or in the direction of travel while tilting forward in a direction substantially perpendicular to the direction of travel is particularly important for the dominant foot.

Conventionally, the upper and lower portions, particularly the heel portion, and the cylinder or leg portion of the upper portion of the heel portion are relatively rotated about the approximate center line of the snowboard boot (hereinafter, referred to as the approximate center line) and swing. A swinging mechanism of a moving snowboard boot is disclosed in DE 36 22 746 A1, Japanese Patent Laid-Open No. 7-298.
No. 902 and the like. In order to obtain such freedom of swing, a hinge mechanism is provided for rotating the upper part located above the heel part about an axis centering substantially in the front-rear direction of the foot.

It is known that a universal joint forming an ankle has a three-dimensional arch structure. This three-dimensional arch structure,
The legs in the upright position are hard to bend laterally. That is, this three-dimensional arch structure makes it difficult to perform a lateral tilting motion that is not based on a combination with the ankle forward tilting motion.

[0005] In order to stably obtain a forward leaning force, it is preferable that the structure of the shoe supports the force for leaning the foot forward so as to support the beating. Thus, a simple mechanism for swinging the foot in the forward leaning posture is desired. A simple mechanism is easy for the rider to operate and at the same time reduces production costs.

[0006]

The present invention has been made based on such a technical background, and achieves the following objects.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a swing mechanism for a snowboard boot having a simple mechanism for providing a lateral swing property in a forwardly inclined position.

Another object of the present invention is to provide a swinging mechanism for a snowboard boot which provides a swinging property in a lateral direction at a position inclined forward and has a low production cost.

It is still another object of the present invention to provide a swinging mechanism for a snowboard boot which provides a swinging property in a lateral direction in a forwardly inclined position and is easy to operate.

[0010]

Means for Solving the Problems To solve the above-mentioned problems, the following means are adopted.

The swinging mechanism for a snowboard boot according to the first aspect of the present invention includes a support positioned at the heel portion and a rocker positioned above the support and supported at a lower portion, wherein the rocker is supported by the support. The swinging body is swingably supported by the body, and the swinging body follows the forward and backward tilting and lateral swinging of the leg tube portion of the snowboard boot, and the swinging fulcrum of the support that supports the swinging body moves. The swing fulcrum is movable in the height direction.

In the swinging mechanism for a snowboard boot according to a second aspect of the present invention, in the first aspect, the support (21) is replaceable, and the swing fulcrum is moved in the height direction by the replacement of the support (21). It is characterized by being movable.

According to a third aspect of the present invention, there is provided a swinging mechanism for a snowboard boot, comprising: a support (21) located at a heel portion;
Oscillator (2) which is located above 1) and whose lower part is supported
3), and the rocking body (23) is provided on the support (2).
The swinging body (23) is supported by the swinging body (23) so as to follow the forward and backward tilting and lateral swinging of the leg tube portion (5) of the snowboard boot, and supports the swinging body (23). The swinging fulcrum of the support (21) is movable, and further includes position adjusting means for adjusting the height position of the support (21), and the support (21) adjusts the position. Means, and the position adjusting means comprises a first fitting member and a second fitting member, wherein the second fitting member (4
5) is provided on the support (21), and the first fitting member (19) and the second fitting member (45) are provided on the first fitting member (19) and the second fitting member (45). A tangential cam (2) that changes the distance in the height direction between the first fitting member (19) and the second fitting member (45) due to the relative rotation of (45).
5) is formed.

According to a fourth aspect of the present invention, in the swing mechanism for a snowboard boot according to the third aspect, the first fitting member (19) is rotatably supported by the support (21) and has a wavefront around the first fitting member (19). The second fitting member (45) is fixed, and the second fitting member (45) is concavely and convexly fitted to the wavefront.

[0015]

The support is located generally at the heel.
The support constituting the heel portion can be formed as a member called a heel cup. When the rocking body is fixed, the rocking body is a member that supports an ankle portion above the heel portion of the foot, and is a member conventionally called a back support.

By changing the support, the height of the swing fulcrum of the swing body can be changed. The support can be supported by the position adjusting means. The height position of the support can be changed by the position adjusting means.

The oscillating body can be provided with a structure that slides laterally with respect to the support, that is, in the horizontal direction (parallel to the horizontal plane on which the snowboard boot is placed). In this case, a guide means, such as a guide groove, for sliding the rocking body relative to the support is formed on the support or the rocking body.

If the position adjusting means is constituted by a tangential cam, the support can be securely fixed at the adjusted height position, and the height adjustment operation is easy and convenient. The tangent cam is a cam also called an eccentric cam,
The concave and convex surfaces on both sides of the concave and convex fitting contact have a common tangent line, and form a bottom dead center or a bottom dead center region. Such an eccentric cam is a conventional means called an eccentric tangential cam. When such a cam is used, the operation is simple and the stability at a specific position in multiple stages is excellent.

The oscillating body oscillates by rotating about a fulcrum. The pivot point is movable in the lateral direction, and the center of rotation is not fixed. That is, the oscillating body can rotate and oscillate with respect to the support, and can also move in parallel.

[0021]

The swinging mechanism of the snowboard boot according to the present invention is applicable to the movement of the ankle in the front-rear direction (the direction crossing the snowboard traveling direction) and the lateral movement of the ankle (the lateral direction, the general traveling direction of the snowboard). It follows and tilts, and further swings and deforms in a forward tilting posture. Such deformation is possible due to both the rigidity and flexibility properties of the snowboard boot.

Such swinging is due to the rotatable connection between the support and the swinging body. The height adjustment of the swing fulcrum can be performed by adjusting the height of the support. Since the rocking body is supported on the support whose height is changed in this manner, and the supporting point is set as the center point of the rocking and rotation, the structure of the two movements of the tilting in the front-back direction and the rocking in the lateral direction is realized. It has been simplified and simplified.
Due to such simplification, the production cost of the combined linear and rotary motion mechanism is reduced, and the operation is also simplified.

The forward tilting motion and the rocking motion of the ankle have a correlation depending on the three-dimensional arch structure of the foot. Movement based on such a correlation is enabled by the swing support structure in which the support points are not fixed. The ankle motion in which the forward leaning motion and the rocking motion are combined in this manner efficiently transmits the leg force to the snowboard, and the transmission efficiency of the propulsive force received by the snowboard is high.

The tangential cam can stably hold the forward tilt position, and the adjustment operation of the forward tilt position is easy. By using the eccentric tangential cam, the operation is simple but a strong fixing force is obtained. In addition, the support structure using the eccentric tangential cam simplifies the assembly and enables mass production at low cost.

[0025]

Next, an embodiment of the present invention will be described.

(Embodiment 1) FIG. 1 is a front view showing Embodiment 1 of a swing mechanism of a snowboard boot according to the present invention. The snowboard boot 1 includes a sole 3 and a leg tube 5. The sole 3 has a ground contact portion 7 made of rubber, in which a hard sole core (not shown) is embedded. A heel portion 9 is provided as a portion below the leg tube portion 5 and forming a rear portion of the shoe.

A heel cup 11 formed in a curved shape along the rear surface of the heel of the foot is mounted on the heel portion 9 and housed therein. The heel cup 11 is formed of a hard resin to support the heel of the foot with shoes. A back support 13 along a curved surface shape along the rear surface of the ankle is attached to the rear of the leg tube portion 5, and is internally provided.

As shown in FIG. 2, the leg tube 5 is fixed to the shoe sole 3 by means such as embedding, sewing, integral molding, or the like. The leg tube portion 5 is formed from an outer skin 15 and an inner skin 17. A relay support 19 is fixed to a portion above the rear end of the heel cup 11. The front-back tilt left-right swing mechanism that tilts in the front-back direction and swings in the left-right direction includes a relay support 19, a support 21, and a rocking body 23. The support 21 is supported on the upper edge of the relay support 19. The support 21 is supported by the relay support 19 via height position adjusting means 25.

The support 21 is supported at a specific height position via height position adjusting means 25. The rocking body 23
It is supported by a support 21. The oscillating body 23 includes the support 2
1 is supported on the upper edge (upper surface). Oscillator 23
Can be formed as a component of the back support 13. The front surface 27 of the rocking body 23 is formed in a curved shape along the rear end surface of the ankle.

The lower half of the oscillating body 23 is formed in a fork shape in the drawing. The lower half of the rocking body 23 has a front part 29 and a rear part 31. Between the front part 29 and the rear part 31, a cavity 3 which is curved and extends in the left-right direction
3 are formed.

The lower end of the cavity 33 is open downward. Common window hole 35 in front part 29 and rear part 31
Is open. The upper end of the support 21 is inserted into a cavity 33 between the front (left side in the figure) of the upper part of the rear part 31 and the rear of the front part 29.

The front and rear surfaces of the support 21, the front surface of the rear portion 31 and the rear surface of the front portion 29 respectively correspond to the front surface 27.
Is formed in a curved surface shape parallel to. That is, the oscillator 2
The three cavities 33 are guided by the support 21 and can translate in the left-right direction while rotating left and right. Oscillator 23
It is preferable to interpose a slip plate 37 between the inner skin 17 and the inner skin 17. The sliding plate 37 smoothes the parallel movement of the rocking body 23 with respect to the inner skin 17.

FIG. 1 shows the general rotation axis L of the oscillating body 23 which rotates while moving in such a parallel manner.
The rotation axis L is substantially a vertical line, and is substantially parallel to the axis of the cylinder of the leg cylinder 5. The angle between the rotation axis L and the vertical line is variable as described later.

As shown in FIG. 3, the upper end of the support 21 is formed into a smooth curved surface. The rocking body 23 is a support
It is supported by the support 21 via a point-like region 39 at the upper end of the first. The lower end surface of the oscillating body 23 that forms the upper end surface of the cavity 33 is formed to be substantially level. Such a contour surface is in contact with the point region of the support 21.

As shown in FIG. 3, the support 21 has a bifurcated bilateral tension portion 41 as a lower portion. The respective ends of the both-side tension portions 41 are fixed to the shoe body, for example, the heel cup 11, by fixing means such as eyelets, screws and the like. The support 21 is straightened (in the center vertical plane including the center line of the shoe and facing the front-rear direction of the shoe and slightly forward) by fastening the both-side tension portion 41 between both ends thereof and fixing it to the shoe body. (In the direction of tilt). It is preferable to make a hole 61 in the rocking body 23 in order to reduce the weight and the friction surface.

The height position adjusting means 25 is rotatably connected to a lower portion of the support 21 (located in the rear end region of the shoe). The height position adjusting means 25 is connected via a shaft pin 43. The outer peripheral surface of the height position adjusting means 25 is formed on the uneven peripheral surface 45. A plurality of fitting recesses 47 are formed by the uneven surface 45. The fitting recess 47 is arranged around the shaft pin 43.

The distance between the lowest position of each of the adjacent fitting recesses 47 (where the distance from the center of the shaft pin 43 has the minimum value) and the shaft pin is different. That is, the uneven peripheral surface 45 is formed as an eccentric peripheral surface with respect to the shaft pin 43. The upper end portion of the relay support 19 has a convex fitting portion 4 formed in a convex shape.
9

One fitting recess 47 fits into the fitting projection 49. At the common contact point where the fitting concave portion 47 and the fitting convex portion 49 are in contact, the tangents of the curved surfaces of the fitting concave portion 47 and the fitting convex portion 49 coincide. Let P be the temporary center point of the relay support 19. The center point of the shaft pin 43 is a point Q in FIG. The tangent is perpendicular to a straight line connecting the points P and Q. That is,
The height position adjusting means 25 is an eccentric tangential cam in relation to the relay support 19, and is also called an eccentric tangential cam.

A handle 51 is attached to the eccentric cam 25, as shown in FIG. A notch 55 is provided in the outer skin 15 to allow rotation of the handle 51 about the shaft pin 43.

Next, the operation and effect of the first embodiment will be described.
The forward tilting force of the foot or ankle is assisted by the forward tilt of the cylindrical leg tube portion 5. The leg tube part 5 having a strong rigidity because of the cylindrical body is
By leaning forward and holding at that position, the forward-tilting foot is reliably supported in the forward-tilting posture.

Holding the handle 51, the height position adjusting means 2
5 is rotated, the shaft pin 43 is pushed up by the relay support 19. When the height position adjusting means 25 is to be rotated around the shaft pin 43, even if the rotation angle is slightly increased, it is suddenly subjected to a reverse torque and cannot be rotated. Fixing means. By changing the rotation position of the height position adjusting means 25, the height position adjusting means 25 is moved up and down with respect to the relay support 19, that is, the support 21 is moved up and down with respect to the heel cup 11,
The downward displacement at the elevating position can be strongly prevented.

By such a lifting, the support 21 moves to a higher position. The upward transition of the support 21 that has been raised by being tensioned by the tension portions 41 on both sides is caused by the support 2
Tilt 1 forward. When the eccentric cam 25 moves obliquely with respect to the center axis of the shoe cylinder, the rigidity of the shoe cylinder is used, and the support 21 and the rocking body 23 lean forward to the same direction as the eccentric cam 25. The cylinder also leans forward. The forward tilting force of the leg tube portion 5 that tilts forward in this way is strong and shows stable stability.

The upper end portion of the rocking body 23 supported by the support 21 moves in the direction of arrow a shown in FIG. 2 by the above-mentioned forward tilt, and the rocking body 23 also tilts forward. The forward tilt direction is a direction toward the front of the shoe, but is substantially perpendicular to the traveling direction of the snowboard. The dominant foot in the forward position in the traveling direction of the snowboard is inclined by about 30 degrees in the long axis direction (the traveling direction) of the snowboard, so that the forward inclination direction is inclined by about 30 degrees with respect to the long axis of the snowboard. ing.

The aforementioned forward tilting force is caused by a slight displacement of the eccentric cam. The oscillating body 23 pushed up by the point-like region 39 at the same time as the forward tilt is supported by the support 2.
The center point that rotates with respect to 1 is maintained at a relatively constant position. This rotation center point is generally a fixed point unless the foot is inclined in the left-right direction, that is, the traveling direction.

In the first embodiment, when the foot is inclined in the left-right direction, the rotation center point moves. This movement obscures the position of the swing center point when the foot is tilted in the left-right direction, but the swing center point moves flexibly in accordance with the tilted posture of the foot. Hardly bound by the rigidity of

The three-dimensional arch structure of the foot, in conjunction with such forward leaning, causes the dominant foot to incline (make it easy to lean) also in the outward direction (the traveling direction). Due to the inclination of the foot in the traveling direction, the swinging body 23 formed on the curved surface along the rear surface of the ankle rotates and swings around the point-like region 39. Since the contact area of the oscillator 23 in contact with the point-like area 39 is not a fixed point or a fixed area but a variable area, when the swing power is large, the oscillator 23 swings on the curved surface with respect to the support 21 while swinging. To translate.

FIG. 4 shows a second embodiment according to the present invention. It is the same as the first embodiment in that the front-back tilt left-right swing mechanism that tilts in the front-rear direction and swings in the left-right direction includes the relay support 119, the support 121, and the swing body 123. That is, the support 121 is supported by the relay support 119. The rocking body 123 is supported by the support 121. The rocking body 23 is supported on the upper edge (upper surface) of the support 21.

The support 121 is supported by the relay support 119 via height adjusting means (not shown).
The relay support 119 is a screw, and the support 121 is fixed to a heel cup (not shown) by the screw.
The rocking body 123 is a component of the back support.

As shown in FIG. 4, the upper half of the support 121 has a cavity 1 formed in the lower half of the rocking body 123.
33. The upper end of the support 121 is formed in a smooth curved surface. The rocking body 123 is supported by
The embodiment is also the same as the first embodiment in that it is supported by the support 121 via the point-like region 139 at the upper end of the first embodiment. Cavity 133
The lower end surface of the oscillating body 123 forming the upper end surface of the support member 121 is formed substantially at a level surface, and the point that such a level surface is in contact with the point-like region of the support 121 is the same as that of the first embodiment. .

The cavity 133 and the support 121 are rotated so that the rocking body 123 can rotate around the dot region 139.
A gap 171 is provided therebetween. Oscillator 123
Can move in the horizontal direction within the cavity 133.

By loosening the screws 119 and exchanging the supports 121 having different lengths in the height direction, the dot-like area 139 is obtained.
Can be changed to change the height position of the oscillating body 123.

(Other Embodiments) The rocking body 23 (123) for firmly supporting the foot on the cylindrical leg tube portion can be detached upward from the support body 21 (121). A drawstring 211 may be provided for this detachment.
The support, the rocking body, and the like can be provided inside the outer skin as shown in FIG. 1 or can be provided outside the outer skin. The oscillating body can be rotatably connected to the support via a rotating shaft so that the center of rotation can be a fixed point without ambiguity.

[Brief description of the drawings]

FIG. 1 is a front view showing Embodiment 1 of a swing mechanism of a snowboard boot according to the present invention.

FIG. 2 is a cross-sectional view of a part of FIG.

FIG. 3 is a side view of a portion of FIG. 2 with the outer skin removed.

FIG. 4 is a front view showing Embodiment 2 of a swing mechanism of a snowboard boot according to the present invention.

FIG. 5 is a side view of a part of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Snowboard boot 3 ... Sole part 5 ... Leg tube part 9 ... Heel part 11 ... Heel cup 19 ... Relay support 21 ... Support body 23 ... Oscillator (back support) 25 ... Height position adjusting means (eccentric cam) 45 ... Concavo-convex peripheral surface 47 ... Fit recess 49 ... Fit protrusion

Claims (4)

(57) [Claims] 1. A support body located in the heel portion (9) and (21), provided located above the rocking and body (23) which lower portion is supported in said support (21), said oscillator ( 23) is swingably supported by the supporting body (21), and the swinging body (23) is a leg tube portion of the snowboard boot.
(5) to follow the swing of the front-rear direction of the tilting and lateral, the rocking fulcrum of the supports (23) for supporting the oscillator (23) is movable, the swing fulcrum height A swing mechanism for snowboard boots that can move in any direction. 2. A method according to claim 1, wherein the support (21) are interchangeable, characterized in that the said exchange of said support (21) is movable said swing fulcrum is in the height direction Swing mechanism for snowboard boots. 3. A support body located in the heel portion (21), the result from support (21) oscillator (23) which lower portion is supported positioned above, the rocking body (23) The swing body (23) is swingably supported by the support body (21), and the swing body (23) is a leg tube portion of the snowboard boot.
(5) to follow the swing of the front-rear direction of the tilting and lateral, the rocking fulcrum of the support (21) for supporting the oscillator (23) is movable, further the support (21 ) Is provided, and the support (21) is supported by the position adjusting means, and the position adjusting means comprises a first fitting member and a second fitting member. The second fitting member (45) is provided on the support (21) , and the first fitting member (19) and the second fitting member (45) are provided.
Are the first fitting member (19) and the second fitting member (4).
The swing of the snowboard boot forming a tangential cam (25) that changes the distance in the height direction between the first fitting member (19) and the second fitting member (45) by the relative rotation of 5). Dynamic mechanism. 4. The device according to claim 3 , wherein the first fitting member (19) is rotatably supported by the support body (21) and has a corrugated surface around the periphery thereof, and the second fitting member (45) is fixed. The swinging mechanism for a snowboard boot, wherein the second fitting member (45) is fitted into the corrugated surface.