Guide element and device for adjusting the stiffness of a ski

Abstract

To provide a guide member and a rigidity adjusting device for a ski board capable of switching the guide position of a plate according to respective sliding applications such as a long turn and a short turn by easy work while suppressing the number of components.SOLUTION: The guide member 50 is fixed to the upper surface of the ski 100 and guides the plate 10 relatively movable in the longitudinal direction of the ski 100 in conjunction with the deflection of the ski 100. The fixing plate 52 can be fixed in a first direction with respect to the longitudinal direction of the ski 100, or can be fixed in a second direction that is longitudinally inverted with respect to the first direction, and the guide portions 54 are formed at both side ends of the fixing plate 52 to guide the plate 10 from both sides. Each of the guide portions 54 is formed to have a length that is line-asymmetric with respect to a first center line L1 located at the center of the fixing plate 52 in the longitudinal direction and extending in the widthwise direction orthogonal to the longitudinal direction.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to a guide member for use in a plate for a ski and a stiffness adjusting device for a ski. [Background technology]

[0002] Ski plates (hereinafter sometimes simply referred to as "plates") that are fixed to the top surface of skis are widely used. Plates not only maintain an appropriate gap between the ski boot and the ground (specifically, the snow surface on which the skis touch), but also contribute to changing the rigidity of the skis.

[0003] Patent Document 1 (Japanese Patent Laid-Open Publication No. 5-184704) discloses a device including a plate that is fixed to the upper surface of a ski and that can move (move relative to) the ski when a bending motion is applied to the ski. More specifically, the plate disclosed in Patent Document 1 is fixed at one end (the tail end of the ski) to the ski, and the other end (the top end of the ski) is held relative to the ski so that it can move relative to the ski (slide relative to the ski in the longitudinal direction) when the ski is bent. Even more specifically, the device disclosed in Patent Document 1 has a clamping member (hereinafter referred to as a guide member), which is provided at a predetermined position on the top side of the ski and allows the plate to slide relative to the ski in the longitudinal direction. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 5-184704 Summary of the Invention [Problem to be solved by the invention]

[0005] The installation position of the guide member disclosed in Patent Document 1 (i.e., its installation position relative to the longitudinal direction of the ski) can be freely adjusted in advance to suit the type of ski and the skier's skill, and the stiffness of the ski changes depending on the adjustment position. Meanwhile, there was a demand for a structure that would allow the plate guide position to be easily switched to suit multiple skiing applications, such as long turns and short turns, without the need for complicated adjustment work. However, such a structure for a guide member and a ski stiffness adjustment device was not known. Furthermore, making the position of the guide member freely adjustable could result in a complex mechanism and an increased number of parts. [Means for solving the problem]

[0006] The present invention has been made in consideration of the above circumstances, and aims to provide a guide member and a stiffness adjustment device for skis that can switch the guide position of the plate according to multiple sliding applications with simple operation and a limited number of parts.

[0007] The present invention solves the above problems by the solution means described below as one embodiment.

[0008] In other words, the disclosed guide member is a guide member for guiding a plate that is fixed to the upper surface of a ski and that can move relatively in the longitudinal direction of the ski in conjunction with the flexion of the ski, and is equipped with a fixed plate that can be fixed in a first orientation relative to the longitudinal direction of the ski, or in a second orientation that is reversed front to back from the first orientation, and guide portions formed on both side ends of the fixed plate that guide the plate from both sides, with each guide portion being formed to a length that is linearly asymmetric with respect to a first center line that is located in the center of the longitudinal direction of the fixed plate and extends in the width direction perpendicular to the longitudinal direction.

[0009] The disclosed stiffness adjustment device for skis comprises the above-mentioned guide member and the plate, and requires that linear rail portions that are guided by the guide member are formed on both sides of the plate. [Effects of the Invention]

[0010] According to the disclosure above, the guide position of the plate can be switched by a simple operation. Also, since one guide member is suitable for two applications (for example, a long turn application and a short turn application), parts can be standardized for each application, thereby reducing the number of parts. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1A is a schematic side view of a ski stiffness adjusting device according to a first embodiment of the present invention and a ski on which the ski stiffness adjusting device is installed, and FIG. 1B is a schematic cross-sectional view of FIG. 1A. [Figure 2] FIG. 2A is a perspective view from above of the stiffness adjusting device for skis in the first embodiment of the present invention, FIG. 2B is a plan view, and FIG. 2C is a perspective view from below. [Figure 3] FIG. 3A is a perspective view from above of a plate in the first embodiment of the present invention, and FIG. 3B is a perspective view from below. [Figure 4] FIG. 4A is a perspective view from above of the stopping member in the first embodiment of the present invention, and FIG. 4B is a perspective view from below. [Figure 5] FIG. 5A is a perspective view from above of the stopping member and the top side member in the first embodiment of the present invention, and FIG. 5B is a perspective view from below. [Figure 6] FIG. 6A is a perspective view from above of the top member in the first embodiment of the present invention, and FIG. 5B is a perspective view from below. [Figure 7] FIG. 7A is a perspective view from above of a guide member in the first embodiment of the present invention, and FIG. 7B is a perspective view from below. [Figure 8] FIG. 8 is a plan view of a guide member (modification) in the first embodiment of the present invention. [Figure 9] FIG. 9 is a perspective view from above of a ski stiffness adjusting device according to a second embodiment of the present invention. [Figure 10]FIG. 10A is an exploded perspective view from above of a stiffness adjusting device for skis according to a second embodiment of the present invention, and FIG. 10B is an exploded perspective view from below. DETAILED DESCRIPTION OF THE INVENTION

[0012] Each embodiment of the present invention will be described in detail below with reference to the drawings. Fig. 1A is a schematic side view of a ski stiffness adjustment device 200 according to a first embodiment of the present invention and a ski 100 on which the ski stiffness adjustment device 200 is installed, and Fig. 1B is a schematic cross-sectional view of Fig. 1A (particularly, a schematic cross-sectional view of a cross section located at the widthwise center of the ski 100 and including the longitudinal centerline). Fig. 2A is a perspective view from above of the ski stiffness adjustment device 200 according to the first embodiment of the present invention, Fig. 2B is a plan view, and Fig. 2C is a perspective view from below. Fig. 3A is a perspective view from above of the plate 10 according to the first embodiment of the present invention, and Fig. 3B is a perspective view from below. Fig. 4A is a perspective view from above of the braking member 30 according to the first embodiment of the present invention, and Fig. 4B is a perspective view from below. Fig. 5A is a perspective view from above of the braking member 30 and the top side member 60 according to the first embodiment of the present invention, and Fig. 5B is a perspective view from below. Fig. 6A is a perspective view from above of a top member 60 in the first embodiment of the present invention, and Fig. 5B is a perspective view from below. Fig. 7A is a perspective view from above of a guide member 50 in the first embodiment of the present invention, and Fig. 7B is a perspective view from below. Fig. 8 is a plan view of a guide member 50 (variant) in the first embodiment of the present invention. In all the drawings used to explain each embodiment, members having the same function are given the same reference numerals, and repeated explanations may be omitted.

[0013] In each embodiment, the "lengthwise direction" and "widthwise direction" refer to the "lengthwise direction" and "widthwise direction" of the ski 100 to which the guide member 50 (i.e., the ski stiffness adjusting device 200) is supposed to be attached. In addition, the "front" and "rear" refer to the so-called "top side (tip side)" and "tail side (rear end side)" of the ski 100. Furthermore, the "upper and lower" in each embodiment refers to the "upper and lower" directions of the ski 100, but since the ski 100 is used especially on slopes (inclined snow surfaces), the "upper and lower" directions in each embodiment may not coincide with the "vertical" directions.

[0014] First Embodiment <<Ski stiffness adjustment device>> Next, the configuration of the ski stiffness adjusting device 200 in the first embodiment will be described in detail. As shown in Figures 1 and 2, the ski stiffness adjusting device 200 comprises a plate 10, a braking member 30, and a guide member 50. More specifically, the plate 10 and the braking member 30 are fixed to the upper surface of the ski 100. Even more specifically, the plate 10 is fixed to the ski 100 by a first fastening member 12A at a first fixing position X1 on the tail side of the ski 100. Even more specifically, as shown in Figure 2, the plate 10 in this embodiment is screwed to the ski 100 by the first fastening member 12A in the form of a screw. Furthermore, the braking member 30 is disposed between the top side of the plate 10 and the ski 100, and is fixed to the ski 100 by a second fastening member 32A at a second fixing position X2 on the top side of the ski 100. The guide member 50 is fixed to the braking member 30 (i.e., to the ski 100) at the second fixing position X2 by the second fastening member 32A. More specifically, the braking member 30 and the guide member 50 in this embodiment are screwed to the ski 100 by the second fastening member 32A as a screw, as shown in Fig. 2C. Furthermore, the plate 10 is held by the guide member 50 so that the tip of the top side of the plate 10 is a free end in the longitudinal direction.

[0015] 1 (i.e., when the ski 100 is not bent), the ski 100 can bend in the direction of arrow A (i.e., bend downwards) when sliding (especially when sliding on snow). At this time, the ski 100 is compressed in the longitudinal direction, and the plate 10 moves relative to the ski 100 in the direction of arrow B in conjunction with the bending of the ski 100. The plate 10 is capable of this relative movement until the first abutment 14 of the plate 10 abuts against the second abutment 34 of the braking member 30, the third abutment 16 of the plate 10 abuts against the fourth abutment 36 of the braking member 30 or the protrusion 64 of the top-side member 60, and the fifth abutment 18 of the plate 10 abuts against the sixth abutment 38 of the braking member 30.

[0016] <<Skis>> Next, the skis 100 will be described. The skis 100 are either alpine skis or cross-country skis, but the type of skis 100 is not particularly limited. The structure of the skis 100 is either a so-called cap structure or a sandwich structure, but the structure of the skis 100 is also not particularly limited. However, it is preferable that the skis 100 have bending rigidity that allows them to bend downward in a convex shape when sliding (gliding on snow).

[0017] <<Plate>> As an example, as shown in FIG. 3, plate 10 is a member formed in the shape of a plate extending in the longitudinal direction, and is formed from a synthetic resin material with a length of about several tens of centimeters, a width of about 10-odd centimeters, and a thickness of about several millimeters to several centimeters, but the shape, material, dimensions, etc. are not limited to these.

[0018] In addition, the plate 10 has through holes 12B and seats 12C formed at the first fixing positions X1 on the tail side (in this embodiment, there are four first fixing positions X1), and is configured to be fixed to the ski 100 by screws 12A.

[0019] Additionally, a first abutment portion 14 is formed on the underside (rear surface) of the plate 10. More specifically, as shown in Fig. 3B, the underside (rear surface) of the plate 10 has a stepped shape in which the thickness of the plate 10 decreases from the tail side to the top side, and the first abutment portion 14 corresponds to the side surface of this stepped shape. When the ski 100 bends and the plate 10 moves relative to the ski 100, the first abutment portion 14 abuts against a second abutment portion 34 of the stopping member 30 (described later), thereby stopping the relative movement of the plate 10 with respect to the ski 100.

[0020] Furthermore, a third contact portion 16 is formed on the underside (rear surface) of the plate. More specifically, as shown in Fig. 3B, the third contact portion 16 is formed as a recess at the tip end position on the top side of the underside (rear surface) of the plate 10. When the ski 100 bends and the plate 10 moves relative to the ski 100, the third contact portion 16 comes into contact with a fourth contact portion 36 or a protrusion 64 as a convex portion of the stopping member 30 (described later), thereby stopping the relative movement of the plate 10 with respect to the ski 100.

[0021] Furthermore, the plate 10 is formed with a first engagement portion 20 that engages with the stopping member 30 and the guide member 50. More specifically, the first engagement portion 20 has a stepped shape on the left and right sides that is narrower than the width of the plate 10. The first engagement portion 20 guides the side and bottom surfaces of the plate 10 by a second engagement portion 40 of the stopping member 30, which will be described later, so that the top end of the plate 10 becomes a free end in the longitudinal direction.

[0022] Also, linear rail portions 22 are formed on both side surfaces of the first engagement portion 20. The rail portions 22 are guided by guide portions 54 of a guide member 50 (described later) so that the top end of the plate 10 is a free end in the longitudinal direction.

[0023] Furthermore, a fifth abutment 18 is formed at the tip position on the top side of the rail section 22. More specifically, the fifth abutment 18, which gradually narrows toward the top side, is formed at the tip position on the top side of the rail section 22. When the ski 100 bends and the plate 10 moves relative to the ski 100, the fifth abutment 18 abuts against a sixth abutment 38, which serves as a recess, of the stopping member 30, which will be described later, and can stop the relative movement of the plate 10 with respect to the ski 100.

[0024] The back surface of the plate 10 may be formed into a lattice structure as shown in Fig. 3B, which can reduce the weight of the plate.

[0025] <<Restraining element>> As an example, as shown in Figure 4, the stopping member 30 is formed in the shape of a plate extending in the longitudinal direction, and has a fourth abutment portion 36 and a second engagement portion 40 on the top side, and is formed from a synthetic resin material with a length of approximately several tens of centimeters, a width of approximately 10-odd centimeters, and a thickness of approximately several millimeters to several centimeters.

[0026] In addition, the stopping member 30 has a through hole 32B and a seat 32C formed at the second fixing position X2 on the tail side (in this embodiment, there are four second fixing positions X2), and is configured to be fixed to the ski 100 by a screw 32A with the guide member 50 described later placed on top.

[0027] The braking member 30 has a stepped shape such that the thickness increases from the tail side toward the top side. The stepped shape is formed at the tip of the tail side of the second engagement portion 40, which will be described later. The height of the stepped shape is set to a thickness that will allow the guide member 50, which will be described later, to be flush with the top-side braking member 30 when the guide member 50 is placed thereon.

[0028] 4A, a second contact portion 34 is formed at the tip of the tail side of the stopping member 30. When the ski 100 bends and the plate 10 moves relative to the ski 100, the second contact portion 34 comes into contact with the first contact portion 14, thereby stopping the relative movement of the plate 10 with respect to the ski 100.

[0029] Furthermore, a fourth contact portion 36 is formed at the tip end position on the top side of the upper surface (surface) of the braking member 30. More specifically, as shown in Fig. 4A, the fourth contact portion 36 is formed as a convex portion at the tip end position on the top side of the upper surface (surface) of the braking member 30. When the ski 100 bends and the plate 10 moves relative to the ski 100, the fourth contact portion 36 comes into contact with the third contact portion 16 as a concave portion, thereby stopping the relative movement of the plate 10 with respect to the ski 100.

[0030] Furthermore, the braking member 30 has a second engagement portion 40 formed in a portion of the plate-shaped side (for example, approximately the front half) that engages with the first engagement portion 20 of the plate 10. More specifically, as shown in FIG. 4A , the second engagement portion 40 is formed as a recess that is approximately U-shaped in front cross section and through which the first engagement portion 20 can be inserted. The second engagement portion 40 may be configured to be able to slide against the first engagement portion 20 when the first engagement portion 20 is inserted, or may be configured so that only a small gap is formed. The second engagement portion 40 is formed in a position that does not interfere with the guide member 50, which will be described later, even when the guide member 50 is placed upside down.

[0031] Furthermore, a sixth abutment portion 38 is formed on the inside of the tail side of the second engagement portion 40. More specifically, the sixth abutment portion 38 is formed as a recess on the inside of the tail side of the second engagement portion 40. When the ski 100 bends and the plate 10 moves relative to the ski 100, the sixth abutment portion 38 abuts against the fifth abutment portion 18, thereby preventing the plate 10 from moving relative to the ski 100.

[0032] Furthermore, on the upper surface (front surface) of the stopping member 30, at a position on the tail side of the fourth contact portion 36, there is formed a through hole 42 into which a protrusion 64 of a top side member 60, which will be described later, is inserted.

[0033] <<Top side component>> The ski stiffness adjusting device 200 may also include a top-side component 60 that engages with the braking member 30. As shown in FIG. 6, the top-side component 60 is a plate-like component that is placed below the top side of the braking member 30. More specifically, the top-side component 60 has a plate-like component 62 and a protrusion (e.g., a cylindrical protrusion) 64 provided on the upper surface of the plate-like component 62. As shown in FIG. 5, the top-side component 60 is fixed to the braking member 30 by inserting the protrusion 64 into the through-hole 42. Note that the protrusion 64 can be configured to come into contact with the third abutment 16 instead of or simultaneously with the fourth abutment 36 when the ski 100 bends and the plate 10 moves relative to the ski 100, thereby stopping the relative movement of the plate 10 with respect to the ski 100.

[0034] <<Guide parts>> Next, the guide member 50 in this embodiment will be described in detail. The guide member 50 in this embodiment is configured to guide the plate 10 that is fixed to the upper surface of the ski 100 and is movable relative to the ski 100 in the longitudinal direction in response to the flexing of the ski 100. The guide member 50 plays an important role in both competitive skiing and recreational skiing, as it greatly contributes to changing the rigidity of the ski 100 that is equipped with the plate 10.

[0035] 7, the guide member 50 is a member having a fixed plate 52 and a pair of guide portions 54. As an example, the fixed plate 52 is formed from a metal material (for example, carbon steel or stainless alloy) with a length of about 10 cm, a width of about 10 cm, and a thickness of about several mm, but the shape, material, dimensions, etc. are not limited to these. Furthermore, in the guide member 50 in this embodiment, the fixed plate 52 and the pair of guide portions 54 are integrally formed, but they may also be formed as separate bodies.

[0036] The fixed plate 52 is configured so that it can be fixed in a first orientation relative to the longitudinal direction of the ski 100, or in a second orientation that is the reverse of the first orientation.

[0037] The fixing plate 52 is provided with a plurality of fixing holes 56 (four in this embodiment). More specifically, each fixing hole 56 is provided coaxially with a corresponding through hole 32B of the braking member 30. Each fixing hole 56 has a through hole 56A and a seat 56B, allowing the guide member 50 to be placed on the braking member 30 and fixed to the braking member 30 (i.e., the ski 100) with the screw 32A.

[0038] Furthermore, each of the fixing holes 56 (especially the four fixing holes 56) is provided at a position symmetrical with respect to a first center line L1 located in the center of the length of the fixing plate 52 and extending in the width direction perpendicular to the length direction, and a second center line L2 located in the center of the width of the fixing plate 52 and extending in the length direction. This makes it possible to fix the guide member 50 in any orientation, even in a configuration in which the guide member 50 is screwed to the stopping member 30 (i.e., the ski 100).

[0039] The guide member 50 also has guide sections 54 formed on both side ends of the fixed plate 52, which guide the plate 10 (i.e., the rail sections 22 of the plate 10) from both sides. Each guide section 54 is formed with a substantially L-shaped cross section, allowing relative longitudinal movement of the plate 10 with respect to the ski 100, and suppressing vertical and lateral movement of the rail sections 22. Therefore, the width (inner width) between each guide section 54 is formed to be the same as the width between each rail section 22, or a dimension that leaves a small gap therebetween, and the height (inner height) of each guide section 54 is formed to be the same as the height of the rail sections 22, or a dimension that leaves a small gap therebetween. In other words, each guide section 54 may be in sliding contact with each rail section 22, or each rail section 22 may be inserted through it without sliding contact.

[0040] Furthermore, it is preferable that each guide portion 54 be formed with a length that is asymmetrical with respect to the first center line L1. In each embodiment, length D2 is formed to be larger than length D1 (for example, by several centimeters), and the orientation in which length D1 is located on the tip side and length D2 is located on the tail side is defined as a first orientation, and the orientation in which length D2 is located on the tip side and length D1 is located on the tail side is defined as a second orientation. With this configuration, simply by flipping the guide member 50 from the first orientation to the second orientation, the guide position of the plate 10 relative to the guide member 50 can be changed, thereby changing the rigidity of the ski 100. Furthermore, since a common guide member 50 can be used for each guide position, the number of parts can be reduced.

[0041] Furthermore, it is preferable that the fixing plate 52 be configured so that it can be fixed by being inverted from a first orientation to a second orientation with respect to the first center line L1. That is, even when the guide member 50 is inverted from the first orientation to the second orientation, it is fixed to the braking member 30 (i.e., the ski 100) by the same fixing holes 56. This allows the fixing holes 56 to be common in both the first and second orientations, thereby reducing the number of holes and screws required and further reducing the number of parts.

[0042] 8, each guide portion 54 of the guide member 50 in the modified example is preferably formed so that a third center line L3, which is located in the center of the length of the guide portion 54 and extends in the width direction, is positioned outside the center of the fixing hole 56 (i.e., the hole center of the through hole 56A). This allows the guide position of the guide member 50 to the plate 10 to be significantly different between the first orientation and the second orientation, thereby enabling the guide member 50 to be made smaller.

[0043] Furthermore, it is preferable that the outer periphery of each fixing hole 56 protrudes from the underside (backside) of the fixing plate 52. More specifically, the outer periphery of the underside (backside) of each fixing hole 56 protrudes so as to be able to engage with the seat 32C. Even more specifically, the underside (backside) of each fixing hole 56 has an annular protrusion 56C with the same diameter and height as the seat 32C so as to be able to engage with the seat 32C. This configuration makes it easier to position the guide member 50 relative to the stopping member 30 (i.e., the ski 100) in each direction, and makes it possible to easily change the rigidity of the ski 100.

[0044] Second Embodiment Next, a detailed description will be given of the stiffness adjustment device 200 for skis in the second embodiment. Fig. 9 is a perspective view from above of the stiffness adjustment device 200 for skis in the second embodiment. Fig. 10A is an exploded perspective view from above of the stiffness adjustment device 200 for skis in the second embodiment, and Fig. 10B is an exploded perspective view from below. Due to space limitations, part of the tail side of the plate 10 is omitted in Figs. 10A and 10B.

[0045] The ski stiffness adjustment device 200 of the second embodiment differs from the first embodiment in the configuration of the plate 10 and the stopping member 30. The ski stiffness adjustment device 200 of the second embodiment also includes a fixing screw 70A that is fixed to the ski 100, and a block member 70B through which the fixing screw 70A is inserted. Other than these, the configuration of the ski stiffness adjustment device 200 of the second embodiment is the same as that of the ski stiffness adjustment device 200 of the first embodiment.

[0046] <<Fixing screws and block components>> The ski stiffness adjusting device 200 in this embodiment includes one or more (two in this embodiment) fixing screws 70A and one or more (two in this embodiment) block members 70B.

[0047] The fixing screws 70A are screwed directly to the ski 100. Each fixing screw 70A is inserted through a block member 70B.

[0048] As shown in FIG. 10, the block member 70B is formed, for example, from a metal material in the shape of two rectangular parallelepipeds of different sizes joined together, with the lower insertion portion 70C formed narrower toward the ski 100 than the upper main body of the block member 70B (for example, approximately 1 cm wide and several cm high). The block member 70B also has a through-hole through which a fixing screw 70A is inserted. With the fixing screw 70A inserted, the insertion portion 70C is inserted into a through-hole 24B of the plate 10 and a through-hole 44 of the stopping member 30, which will be described later. Furthermore, a seat is formed on the upper part of the main body of the block member 70B on which the head of the fixing screw 70A rests.

[0049] <<Restraining element>> The braking member 30 in the second embodiment has through holes 44 corresponding to each block member 70B formed on the top side of the braking member 30, closer to the tail than the through holes 42. The through holes 44 are formed with the same diameter as the insertion portions 70C of the block members 70, and are configured so that when the fixing screws 70A are screwed into the ski 100, they are fixed to the ski 100 by the insertion portions 70C.

[0050] The protrusion 66 of the stopping member 30 in the second embodiment is formed in the shape of two claws (chucks), unlike the cylindrical protrusion 64 in the first embodiment.

[0051] <<Plate>> The plate 10 in the second embodiment has an elongated hole 24 located further up than the guide member 50, through which the insertion portion 70C of the block member 70B is inserted and which allows the plate 10 to move longitudinally relative to the block member 70B. More specifically, the elongated hole 24 has a seat 24A on which the upper part of the block member 70B rests and a through-hole 24B through which the insertion portion 70C is inserted. The widthwise diameter of the through-hole 24B is the same as the widthwise diameter of the insertion portion 70C, but the lengthwise diameter of the through-hole 24B is larger than the lengthwise diameter of the insertion portion 70C. This configuration allows the plate 10 to move relative to the ski 100 when the ski 100 bends, while also ensuring a more secure fixation of the plate 10 to the ski 100.

[0052] In particular, as shown in Figure 10, when the guide member 50 is fixed to the braking member 30 in the first orientation, the degree of freedom in the width direction of the top side of the plate 10 increases compared to when the guide member 50 is fixed in the second orientation, which may result in instability of the plate 10. Therefore, by using the fixing screws 70A and block members 70B when the guide member 50 is fixed to the braking member 30 in the first orientation, it is possible to prevent an increase in the degree of freedom in the width direction of the top side of the plate 10 and stabilize the plate 10. In other words, by configuring the ski stiffness adjusting device 200 as described above, it is possible to adjust the stiffness of the ski 100 using the guide member 50 and also to appropriately adjust the degree of freedom in the width direction of the plate 10, thereby improving the reliability of the ski 100. Of course, the fixing screws 70A and block members 70B may be used regardless of the orientation of the guide member 50.

[0053] The present invention is not limited to the above-described embodiments, and various modifications are possible without departing from the scope of the present invention. [Explanation of symbols]

[0054] 10 plates 22 Rail section 24 Long hole part 24A Seat 24B through hole 50 Guide member 52 Fixed plate 54 Guide section 56 Fixing hole 70A fixing screw 70B Block member L1 1st center line L2 2nd center line L3 3rd center line 100 skis 200 Ski stiffness adjustment device

Claims

1. A guide member for guiding a plate that is fixed to the upper surface of the ski and that can move relatively in the length direction of the ski in conjunction with the flexure of the ski, a fixing plate that can be fixed in a first orientation relative to the length direction of the ski or in a second orientation that is the reverse of the first orientation; guide portions formed on both side ends of the fixed plate for guiding the plate from both sides, Each of the guide portions is formed to have a length that is asymmetrical with respect to a first center line that is located at the center of the length of the fixed plate and extends in a width direction perpendicular to the length direction. A guide member characterized by:

2. The fixing plate can be fixed to the ski in the first orientation or in the second orientation inverted from the front to the rear about the first center line.

2. The guide member according to claim 1, wherein:

3. The fixing plate is provided with four fixing holes, The fixing holes are provided at positions symmetrical with respect to the first center line and a second center line that is located at the center in the width direction of the fixing plate and extends in the length direction.

3. The guide member according to claim 1 or 2, wherein:

4. The guide portion is formed so that a third center line, which is located at the center in the length direction of the guide portion and extends in the width direction, is located outside the center of the fixing hole.

4. The guide member according to claim 3, wherein:

5. The outer periphery of each of the fixing holes protrudes from the lower surface of the fixing plate.

5. The guide member according to claim 4, wherein:

6. The guide member according to claim 1 or 2 and the plate are provided, The plate has linear rails formed on both sides thereof that are guided by the guides. A stiffness adjustment device for skis, characterized by:

7. The ski further includes a fixing screw that is fixed to the ski, and a block member through which the fixing screw is inserted. The plate further has a long hole portion on the top side of the guide member, through which the block member is inserted and through which the plate can move relative to the block member in the length direction.

7. The stiffness adjusting device for skis according to claim 6, wherein:

8. The guide member according to claim 3 and the plate are provided, The plate has linear rails formed on both sides thereof that are guided by the guides. A stiffness adjustment device for skis, characterized by:

9. The ski further includes a fixing screw that is fixed to the ski, and a block member through which the fixing screw is inserted. The plate further has a long hole portion on the top side of the guide member, through which the block member is inserted and through which the plate can move relative to the block member in the length direction.

9. The stiffness adjusting device for skis according to claim 8, wherein:

10. The guide member according to claim 4 and the plate are provided, The plate has linear rails formed on both sides thereof that are guided by the guides. A stiffness adjustment device for skis, characterized by:

11. The ski further includes a fixing screw that is fixed to the ski, and a block member through which the fixing screw is inserted. The plate further has a long hole portion on the top side of the guide member, through which the block member is inserted and through which the plate can move relative to the block member in the length direction.

11. The stiffness adjusting device for skis according to claim 10,

12. The guide member according to claim 5 and the plate are provided, The plate has linear rails formed on both sides thereof that are guided by the guides. A stiffness adjustment device for skis, characterized by:

13. The ski further includes a fixing screw that is fixed to the ski, and a block member through which the fixing screw is inserted. The plate further has a long hole portion on the top side of the guide member, through which the block member is inserted and through which the plate can move relative to the block member in the length direction.

13. The stiffness adjusting device for skis according to claim 12, wherein:

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