JP4716349B2 - Snow walking aid - Google Patents

Description

    This invention has been used for a long time as it is used in combination with footwear so that the foot does not sink in the snow when walking on snow, and it is still used as it is for its use It is related to snow surface walking aids represented by “Kanjiki”, which is continuously being used, mainly related to technical fields related to footwear and sports equipment, and various materials related to metal materials, plastic materials, bamboo materials, wood, etc. It belongs to all the technical fields related to human life, such as the technical field of the above, or the technical field of processing using these materials.

(point of view)
Although the amount of snow falling due to global warming has decreased considerably in the Snow Country Hokuriku, Tohoku, and Hokkaido regions, it does not mean that the snow has disappeared, but snow removal away from the main road in mountainous areas and snowy areas. In places where there is no such thing, there is still a certain amount of snow, and since there is no use for activities such as footwear worn in rainy weather etc., it is the only effective way to wear old-fashioned `` Kanjiki '' As a result, it continues to play an active role in outdoor activities during the winter in snowy countries.

    As is well known, "Kanjiki" is a general term for special footwear used when walking in soft scenes such as muddy water, ice, and snow. It was said that it was spread from Northern Europe to North Asia and North America during the Neolithic period, and it was thought that it was already used by the Jomon period in Japan. After many years of transition, the structure is said to be "single-wheel type with a circle, ellipse, or saddle shape made from a single ring", and "an ellipse made from two rings." There are three main types, the so-called “double-wheeled shape” and the “knob-shaped type with wood or split bamboo arranged side by side,” all of which are in contact with snow. In the range that does not interfere with walking The size of the ellipse is large enough to put on the sole so that the weight on the snow is dispersed and reduced, and the footwear such as boots gets wet during the snow and prevents it from walking. Alternatively, a shoe mounting part that allows the user to balance the weight when wearing it with a ring-shaped or bowl-shaped contour, and to allow the user to maintain a balance when wearing it, so that the shoe sole can be placed and temporarily fixed at the approximate center part. It has a structure in which it is arranged, passed over the previous contour, and supported.

(Conventional technology)
Thus, in terms of the function as “Kanjiki”, it must have the necessary and sufficient size to disperse the weight, and as described above, it is necessary to balance and disperse the weight. Because of this, the shoe sole has a structure that is located around the center of these contours, in other words, a structure that has a snow-contacting surface that spreads almost uniformly around the shoe sole. When trying to do so, it would look like it would step on the contours that greatly spread around the left and right shoe soles, so it could not go forward, so both feet were opened so that they would not step on, and each foot was drawn from the outside in a semicircle It is necessary to become a special gait (hence, it is necessary to become familiar with some degree first), and because of the reason of the unreasonable gait, the familiarity with the shoes (mainly winter boots) during that time is bad and it comes off. Or will not come off However, it will be alienated from walking, and it can not withstand use for a long time, and although it can certainly prevent the shoes from sinking into the snow, the special walking posture required for that and familiarity with the shoes Inevitably, the difficulty of exhausting the physical strength due to the poorness of the unavoidable is unavoidable, and there have been several attempts in the past to somehow improve the poor walking ability of the traditional “Kanjiki”.

    For example, the idea of “Kanjiki” published in utility model public notice No. 3338 published in 1964, the idea of “Kanjiki” published in utility model publication No. 10379 published in 1944, and utility model publication No. 22385 published in 1964 The idea of “Kanjiki”, or “Kanjiki” in Registered Utility Model No. 3007225, etc., has been working on the same issues over many years, although the number itself is not so small. Although it can be confirmed, all of the proposals so far, including those listed above, have not yet reached the point where they can still fully cope with the difficulty of walking. The fact is that we cannot find what we are doing.

(1) Utility Model Public Notice No. 3338 (Showa 31) (2) Utility Model Notice No. 10379 (Showa 44), etc.

(Awareness of problems)
In view of the situation as described above, the present invention can be easily removed from the function by improving the familiarity with the shoes, even if a certain amount of unnaturalness remains, compared to the normal walking posture. As one of those who live in a snowy country, whether it is possible to devise a snow surface walking aid of the kind of “Kanjiki” that is easy to wear, so that it does not encourage walking or unnatural walking We have been testing and analyzing conventional products for a long time.

(Object of invention)
Therefore, the applicant of the present application is based on the knowledge obtained in the process, and is excellent in the sense of unity on the foot during walking, and has an improved structure that enables smooth walking. With the aim of creating assistive devices, the development and research of it has been started quickly, and after many years of trial and error and numerous trials and experiments, we finally have a new structure on the snow surface. In the following, the configuration will be described in detail together with an embodiment representative of the present invention shown in the drawings.

(Structure of the invention)
The snow walking aid according to the present invention basically has the following configuration. In other words, a crossing portion of a predetermined width that mainly contacts the shoe sole arch around the center of the snow surface capture frame having a size much larger than the contour of the bottom of the boots in the front-rear direction approximately in the middle or slightly forward. On the other hand, the crossing portion is provided with an upper fixing belt support portion that extends into a space surrounded by a snow surface capturing frame ahead of it and is in contact with the shoe sole portion on the front side of the arch. In addition, it extends into the space surrounded by the snow surface capture frame behind it, and it should substantially match the shoe sole contour from the arch to the heel, with the edge on the end side as appropriate along the outer surface of the heel A snow surface walking aid that has a structure in which the ankle fixing belt support portion that stands up over a range of height is formed in a continuous and integral manner so that it can be elastically deformed appropriately in the vertical direction. is there.

    When this basic configuration is shown as a more specific configuration, it has a contour that is far larger than the contour of the bottom of the boots, and an inner predetermined width portion along the contour is formed on the snow surface capturing frame. At the same time, approximately in the front / rear direction of the snow surface capture frame, or slightly forward, the space surrounded by the snow surface capture frame is crossed and orthogonal to the shoe sole direction. On the other hand, the upper part that extends into the space surrounded by the snow surface capturing frame in front of it and comes into contact with the shoe sole part on the front side of the arch The fixed belt support shall extend into the space surrounded by the snow surface capture frame behind it, and shall approximately match the shoe sole contour from the arch to the heel, with the edge on the end side outside the shoe heel Ankle fixation belt support that stands up over a range of heights along the side And each one integral-shaped continuous, the vertical direction moderately elastically deformable formed to become as that the structure of the snow surface walking aid.

    More specifically, it has a contour that far exceeds the contour of the bottom surface of the boots, and an inner predetermined width portion along the contour is formed on the snow surface capturing frame, and the front and rear direction of the snow surface capturing frame. Around the center or a little closer to the front, a crossing section that crosses the space surrounded by the snow surface capture frame and is arranged orthogonal to the shoe sole direction is formed. The hanging part has an upper fixing belt support that extends into a space surrounded by a snow surface capturing frame in front of it and is in contact with the shoe sole part on the front side of the arch. It extends into the space surrounded by the snow surface capture frame, and almost matches the shoe sole contour from the arch to the heel, and rises up to the appropriate height range along the outer edge of the shoe heel. The ankle fixing belt support portion thus made is a continuous one-piece, upper and lower And a biting protrusion with a predetermined length or a pinning protrusion with a pin projecting downward from at least the lower surface of the crossing part and the ankle fixing belt support part. Includes snow walking aids.

    The snow walking aid of the present invention has a strong reaction force due to the force applied to the toes and heels when the user balances, and the force applied by the vertical movement of the toes and heels during the most important walking advance The trap reaction force (a part of the kick force) obtained due to the snow is restricted to correspond to the arch around the center of the snow surface capture frame in the front-rear direction or slightly forward. As a restoring force due to elastic deformation of the upper part fixing belt support part corresponding to the toe side part and the ankle fixing belt support part corresponding to the heel side part, which are integrally formed, respectively, the snow surface is surely Since it is transmitted to the capture frame and efficiently dispersed and supported from the snow surface capture frame to the snow, the kicking force for walking advance obtained when the user wears and steps out Efficient and stable As a snow surface walking aid that makes it possible to effectively perform the desired action even on a deep snow surface immediately after snowfall, such as soft snow, it can be achieved at all by conventional wiping. It will be able to demonstrate the outstanding features that did not exist.

    And, the front side of the snow surface capture frame in the snow surface walking aid of the present invention is inclined obliquely upward, and at the same time, the rear side is curved upward in the shape of a lower chord as viewed from the rear, or either In the case of using one of them, the ratio of the front and / or rear end of the snow surface catching frame hooked on the snow surface before and after the landing is improved even during the movement of the crotch. Therefore, in addition to the above features, the forward movement of walking, that is, the action of taking out the foot alternately, can be made much smoother than those that do not employ such a configuration. Will also be combined.

    The snow surface capture frame, when the user puts one foot on the crossing section described later and hangs the entire weight on the snow surface walking aid of the present invention, captures the snow surface and averages the load as much as possible. It functions to disperse and prevent it from sinking deeply into the snow, and to fulfill that function, even when the maximum weight is added to one foot (for example, when standing on one foot) As a structure that can capture a snow surface with an area sufficient to support the load (not limited to a planar size, but also includes a size with a three-dimensional shape) As long as it has to be formed and its size is ensured, its overall contour shape is not particularly limited, and it has a generally oval shape as described in the following examples, and has traditionally been used. The shape of ellipse In addition to the shape or deformed bag shape, it can be of a shape such as an orthodox thick and short warp type in other countries, and can only achieve the functions described above (therefore, the bottom of the boots) It is formed as having a profile that is much larger than the profile.

    The snow surface capture frame having a predetermined size and structure planned with the desired contour is assumed to have an overall weight, and the strength is sufficient to balance and distribute the entire weight on the snow surface. It is made of a material having a relatively high mechanical strength and durability such as polyester, polyethylene, polycarbonate, etc., or a material combined with an FRP material or a metal material reinforced with these materials, which will be described later. It is desirable to form each component as a single piece or as a continuous, integrated one, but depending on special circumstances such as making it disposable, other materials such as, for example, Bamboo, wood, etc. alone or combined as appropriate and then connected and integrated using adhesives, hardware, strings, etc. Rukoto can also.

    Desirably, the snow surface capturing frame is a portion that captures the snow surface with a predetermined width inward from the contour, and at least a main portion of the portion that is positioned on both the left and right sides of the planar shape is The vertical cross section should be like a V-shaped cross section that opens downward, or as a wide groove type including a V-shaped cross section, as in the examples described later. In addition to the overall side shape being formed almost straight, only the main part of the front side of the flat side is the side shape. It should have a shape that is slightly inclined obliquely upward, or the entire portion gradually inclines obliquely upward from the front side of the crossing portion, and the rear portion of the planar shape The main part is left and right as seen from the rear Most of the width or horizontal width is to be formed like formed by curved waning moon shape.

    The passing portion is passed to the snow surface capturing frame formed as described above, and functions to ensure that a load corresponding to at least the total weight is transmitted to the snow surface capturing frame. It functions as a base for forming and supporting the instep fixation belt support and ankle fixation belt support so that it can stably place the sole of winter boots such as user's boots and convey weight. It also serves the function of making good contact with the point that is transmitted in a state where the burden on the sole is not as painful as possible. Of a predetermined width across the space surrounded by the snow surface capture frame and perpendicular to the shoe sole direction. Surely the surrounding snow surface A sufficient strength because they convey the caught frame and arranged structure shall have been considered.

    In order to realize the above-mentioned purpose and function, any means that has been conventionally adopted as an integral molding means, such as integral molding of the same material, such as punching molding or injection molding of a rolled material, is adopted for the above-described snow surface capturing frame. In some cases, it is formed as a separate body from the snow surface capture frame (thus, not necessarily made of the same material), and a strong connection structure provided in advance between them. It can be said that it is desirable that the connecting structure using an intermediary material as appropriate or the intermediary material be securely connected and integrated by a connecting means using an adhesive or welding.

    In addition, it should be of a shape and structure that is convenient for skillfully abutting slightly different shoe soles depending on the manufacturer to stabilize the condition, and the upper fixing belt support portion described later. In addition, it is necessary to have sufficient strength to ensure the formation and support of the ankle fixing belt support part, and the kicking force and braking reaction force when moving forward on the upper fixing belt support part and the ankle fixing belt support part during use It must be formed so as to be able to receive all the supporting force for balancing, etc., and transmit it to the snow surface capture frame reliably, and it will be provided with reinforcing ribs for that purpose. Select the size, change the material pressure, etc., devise a cross-sectional shape to fit the shoe sole, or rubber or sponge body, thick on the surface that contacts the shoe sole Other fabrics Collision, laminated special material for slip or the like, etc. and made integral, it is free to incorporate various measures, it is needless to say that allows employed depending on necessity.

    The upper part fixing belt support part is connected to the above hanging part in a space surrounded by the snow surface capturing frame in front of it, or it is connected to the hanging part as a single part or separately connected as appropriate. It can be stretched, formed, and covered with the sole part on the front side of the arch, that is, the entire shoe sole up to the toe. In consideration of inconveniences such as snow trapped on the snow surface and biting on the snow surface separately from the snow surface capture frame, etc., so that it touches the base of the thumb or the vicinity thereof as in the embodiments described later. Attaching and supporting the upper part fixing belt for detachably fixing the upper part of the boots, in combination with an ankle fixing belt, which will be described later. The tool has left the user ’s boots It must be assumed to be able to ensure that as the ability to be free I can play.

    At the same time, when the user wears and walks while stepping on the foot, the toe side of the boots will play in the front space surrounded by the snow surface capture frame, and the reaction force to step out (part of kick force) It also functions to prevent it from being lost, so its own resilience so that the force applied on the toe side can be effectively obtained as a reaction force from the snow surface capture frame through the passing part In addition, the connection strength to the crossing portion is sufficiently taken into consideration, and the optimum material, shape, and structure are examined in advance. It should be noted that the fixing belt detachable structure in the belt attaching portion in the upper fixing belt support portion is not limited, and it is sufficient to appropriately select and adopt various known belt attaching / detaching and adjusting mechanisms according to circumstances.

    On the other hand, the ankle fixing belt support portion is disposed on the opposite side to the above-described upper fixing belt support portion with respect to the above-described hanging portion, that is, on the rear side. It extends into the space surrounded by the snow surface capture frame and is formed so as to substantially match the shoe sole contour from the arch to the heel, and the outer edge of the shoe heel is approximately along the contour of the shoe heel. In this way, a belt for standing up over an appropriate height range to form a small wall portion and preventing rearward movement of the shoe heel and fixing the ankle portion of the shoe using the small wall portion It fulfills the function of enabling detachable attachment.

    Further, the ankle fixing belt support portion is provided with a braking reaction force obtained from the arch portion to the heel portion, particularly when the heel is moved up and down, when the snow surface walking aid of the present invention is attached to the shoe sole. It also functions to ensure that the reaction force necessary for walking / stopping operation, such as support force for maintaining posture balance, is obtained, and these reaction forces are effectively and reliably removed from the snow surface capture frame. In order to be transmitted through the crossing part, the elastic material and the connection strength to the crossing part are taken into consideration, and the optimal material, shape, and structure are examined. This is the same as in the case of the belt support part, and the structure for detaching and fixing the fixed belt to the belt attachment part is not limited, and various conventionally known belt attachment / detachment and adjustment mechanisms are appropriately selected according to the circumstances. Can also be adopted, the upper It is exactly the same as that in the case of the constant belt support unit.

    And, at least from the lower surface of the ankle fixing belt support part and the crossing part, and if necessary, the upper part fixing belt support part and the snow surface capturing frame, the function of preventing the sliding operation from the snow surface is achieved. For this reason, it is necessary that the biting protrusion of a predetermined length or the pinning protrusion with a pin protrude downward, and the structure thereof is not particularly limited, and the ankle fixing belt support is previously provided. In addition to the fixed type that is integrally formed on the part and the hanging part, etc., it should be attached separately from them, so that it can be attached and detached as necessary, and the situation (soft fresh snow surface or Depending on the snow surface, etc., which is hard and rough, etc., it may be possible to replace and use different structures, or to be able to replenish in the event of damage or loss. As shown in the example, the horizontal cross section is rectangular, and the arrangement is such that the long side direction of the rectangular shape is partially irregular. It can depend on the number. In the following, a specific description will be given with reference to the drawings with respect to typical embodiments so that the configuration of the above-described snow walking aid of the present invention becomes clearer.

    1 is a side view of what is attached to one foot in a dotted line, a plan view of FIG. 2, a bottom view of FIG. 3, a front view of FIG. 4, a rear view of FIG. 5, a rear view of FIG. 7 and A-A cross-sectional view of FIG. 7, BB cross-sectional view of FIG. 8, CC cross-sectional view of FIG. 9, and DD cross-sectional view of FIG. In addition, the snow walking aid taken up in this embodiment is made of strong plastic such as polycarbonate and is integrated with and integrated with the crossing section as well as the snow surface capturing frame and the crossing section. Up to each partial configuration formed on the ankle fixing belt support part and the upper part fixing belt support part, and thus on each of the ankle fixing belt support part and the upper part fixing belt support part (however, either an ankle fixing belt or an upper part fixing belt) Will be injection molded with a single die To the is due Typical examples consisting of basic configuration of the present invention.

    As shown in the figure, the snow surface capturing frame 1 is a deformed oval having an overall length of about 47 to 48 cm and an overall width of about 25 to 26 cm, that is, most of both side edges are parallel, and the rear side has a radius of about 12 to 13 cm. Although it is formed at the rear end 12 of a semicircular shape (therefore, the width between the side edges is about 25 cm), only the front side of the semicircular shape is formed by linearly deforming the top of the semicircular shape. In addition, the side shape has a structure in which only the part of the front side of the semicircular top that is linearly deformed is inclined obliquely upward, and the rear side semicircular part is left and right as viewed from the rear. The entire width or most of the left and right widths are formed so as to be curved upward in a moon shape of the lower chord.

    And most of the snow surface capture frame 1 except for the straight front end portion 11 side is a mountain-shaped longitudinal section (vertical upside down V-shaped longitudinal section) having a height of about 2 to 3 cm inside and outside the plane width of 4 to 5 cm from the outline. Only the front end 11 side is formed with a thickness of about 1.5 to 2 mm, with only the outer part of the chevron vertical cross section opened upward to form a half warp shape. Yes, the snow surface is captured and compressed in such a way that the snow is held in the lower surface recess formed in the vertical cross section of the mountain, and the weight of the user who is added to the snow surface capturing frame 1 of the present invention is well controlled. It is possible to eliminate the sinking of the snow surface capturing frame 1 into the snow surface by always maintaining a situation in which the load is not concentrated locally even on the snow surface having a weak supporting force. As a thing.

    In the approximate center of the snow surface capturing frame 1 in the front-rear direction, the space surrounded by the snow surface capturing frame 1 is roughly bisected in the front-rear direction (that is, from the heel to the toe in use). It has a thickness of about 1.5 to 2mm, which is almost the same as the surface capture frame 1, and has a flat hanging part 2 on both the front and back sides by injection molding. Regardless of the arch, the strength is such that it is well adapted to the arch and does not slip off, and that the foot kick force when wearing and walking can be reliably transmitted to the snow surface capture frame 1. In order to maintain the figure, the display of the figure is omitted. However, it is also formed with a large number of uneven portions on the entire surface also serving as ribs (the uneven shape is not particularly limited as long as it suits the purpose).

    From this crossing part 2, it protrudes with the width of about 3 cm to the front side as the substantially same surface as this crossing part 2, and three sides seem to be surrounded by the snow surface capture frame 1 which becomes the front side rather than the crossing part 2. The instep fixed belt support portion 3 is integrally formed, and on the rear side, a bottom placement portion when the user's snow shoes are placed on the crossing portion 2 as prescribed. The ankle has a shape and size that can be placed up to the heel part of the shoe that will be located behind 2, and is also in a state surrounded by the snow surface capture frame 1 on the back side The fixed belt support portion 4 is integrally formed.

    These upper part fixing belt support part 3 and ankle fixing belt support part 4 are also formed so as to be appropriately elastically deformable in the vertical direction, and in the stage where the snow surface walking aid of this invention is mounted and used, In order to obtain a reaction force for trying to move forward from a state in which the arch of the user's shoes is supported by the crossing part 2 and the weight is dispersed and transmitted to the snow surface capture frame 1, If the force is applied alternately to the side, if it is a conventional one, the toe side portion or the heel side portion of the user's shoes are free, and the reaction force moves smoothly and the snow surface capturing frame 1 Or it is connected to the surrounding snow surface capture frame 1 and its movement is restricted, and the movement of the toe side part or the heel side part is directly linked to the movement of the snow surface walking aid itself. The movement necessary for walking forward is awkward The material was not only examined in advance so that the movement to move up and down with moderate repulsion would be extremely smooth, while following the movement. In addition, there are contrivances that make it convenient for advancing the walk, such as by providing drill holes 44 and 45 whose size has been examined.

    In addition, the upper part fixing belt support part 3 is provided with belt attaching parts 31 and 31 for incorporating the attached upper part fixing belt 3a around both ends of the shoelace in the center, and an ankle fixing belt. On the support portion 4, the rear end edge is formed in an arc shape substantially corresponding to the shape of the shoe heel, and the substantially entire surface of the heel is covered along the edge as shown in the figure. It is formed in a small wall 42 that is raised to about 5 to 8 cm, so that the shoe will not be detached from the ankle fixing belt support 4 when worn, The small wall 42 is perforated with belt attaching portions 41, 41, and the attached upper fixing belt 4a is attached using the belt attaching portions 41, 41. The fixing belt 4a can be fixed by turning to the front side of the ankle portion of the shoe. Unishi are.

    The upper fixing belt support 3 and the ankle fixing belt support 4 are provided on the toe side portion or the heel side portion of the shoe of the user regardless of the type of snow shoes such as the user's boots. In order to prevent the slippage from getting out of place and to prevent the slippage, and to maintain the strength to ensure that the foot kick force when wearing and walking can be reliably transmitted to the snow surface capture frame 1, In the same way as in the case of FIG. 2, the illustration is omitted, but it is also formed with a large number of uneven portions (in particular, the uneven shape is not limited as long as it suits the purpose) also serving as a rib.

    And in the case of the back surface of the both sides of the crossing part 2, and the ankle fixing belt support part 4, it protrudes about 2 to 3 cm in the downward direction on the back surface of the area corresponding to the heel of the shoe. The biting protrusion (in some cases, it may be a biting protrusion with a pin that enhances the biting and enhances the anti-slip effect at the tip.) 21, 21, or 43, 43,... When stopping, even when walking forward, the position of the snow walking aid of this invention that has stepped on the snow surface will not slip carelessly and make the standing posture unstable. It is as. Although the number of them formed is not limited, in order to obtain stability in all directions, it should be considered in terms of the plane arrangement and the direction of each one. In this embodiment, in particular, the ankle fixing belt support As can be seen from the figure, the arrangement of the biting protrusions 43, 43,... Of the portion 4 is such that all the long sides of the plane rectangular shape are not aligned, so that omnidirectionality can be realized.

(Operation of Example)
The snow surface walking aid of the present invention is configured as described above in detail, and a user wearing, for example, boots as snow shoes in a snowy area, first, the snow surface walking aid Place the shoes on the flat part as much as possible with an interval of about the width of the shoulders, and align the shoes so that each foot is located on the crossing part 2 so that the part of each arch is slightly forward Since the heel S1 of the S is brought into contact with the inside of the arc-shaped small wall 42 provided on the ankle fixing belt support 4, the toe naturally close to the toe-side portion S3, more precisely, the arch S2 The side portion S3 is located on the upper fixed belt support portion 3, and while maintaining that state, there is no problem either way, but the upper fixed belt support portion 3, the ankle fixed belt Branch Instep ratchet belt 3a that is incorporated into part 4, as none of ankle brace belt 4a is detachably fixed at appropriate sites, thus wearing the snow surface walking aid of the invention to the left and right boots S. The operation during this time can be completed once you get used to it.

    If the user steps on the snow surface that is still worn and fresh snow is still piled up, the user must keep the flat and hard part that has been stopped for wearing. Then, because of the biting protrusions 32, 32 or 43, 43,... Protruding on the back surface, the soles could not be leveled well and became unstable. It is absorbed into the surface and can maintain a normal standing posture without any sense of incongruity. However, even when stopped or when walking is started, the deformed oval snow surface walking aid having a total length of about 47 to 48 cm and a total width of about 25 to 26 cm is 2 in both vertical and horizontal dimensions. Since it will be more than double the size of the footwear, you must step on the other snow surface capture frame 1 with one snow surface capture frame 1 unless you try to consciously take a large thigh posture than usual. If you fall into this state, especially when you are in a forward walking system, you will surely fall forward and you need to be careful until you get used to it.

    If you are comfortable with walking with an unusual stride and you can walk forward without difficulty, in the case of the snow surface walking aid of this invention, in order to get a reaction force for trying to take one step, alternately on the toe side and heel side If the force is applied to the toe, the toe side portion S3 or the heel side portion S4 of the user's shoe S is free and moves freely, and the reaction force captures the snow surface well. It is difficult to be transmitted to the frame 1, or it is connected to the surrounding snow surface capture frame 1 and the movement of the toe side portion S3 or the heel side portion S4 is restricted, and directly connected to the movement of the snow surface walking aid itself However, the movement required for walking forward is awkward and the load on the foot is abnormal, and in any case it was far from efficient movement, but on the toe side The reaction force obtained by stepping on part S3 is the upper As the restoring force due to the elastic deformation of the constant belt support portion 3 and the reaction force obtained by the force applied at the heel side portion S4, as the restoring force due to the elastic deformation of the ankle fixing belt support portion 4, As a result of being efficiently dispersed and supported by the snow trapped in the recess of the mountain-shaped cross section that occupies most of the snow surface capture frame 1, it is never It does not sink in the plane, and the movement of walking forward is extremely smooth except for the wide stride, and the necessary action as this kind of device can be exhibited without regret.

(Effect of Example)
In the case of the snow surface walking aid having the configuration representative of the present invention taken up in the embodiment, the above-described excellent features of the present invention can be realized without any surplus, and most of the snow surface capturing frame 1 is formed. Occupied vertical cross section, the snow surface is securely held in the recess so that it does not escape, and the back of each of the upper fixing belt support 3 and the ankle fixing belt support 4 has a specific positional relationship. The pinned protrusions 32, 32 or 43, 43,... Are provided so as to bite into the snow surface, and when walking is stopped and stopped, the walking advances forward. Above all, there is a remarkable effect that the position of the snow walking aid of the present invention that has stepped on the snow surface does not accidentally slip and destabilize the standing posture.

(Conclusion)
As described above, the snow surface walking aid of the present invention makes it possible to achieve the intended purpose through a novel structure not found in the conventional one, and has a simple structure. Manufacturing is easy, and it is possible to provide it as a relatively inexpensive product. Therefore, it is possible to carry out activities such as work and leisure in the snowy area outdoors and in snowy areas where it has been left untouched. In the scene, it will be highly appreciated by people in the field as an effective snow walking aid that was not available with conventional products, and it is expected that it will be adopted and spread over a wide range. The

The drawings show a typical embodiment of the snow walking aid included in the present invention.
It is a right view shown with the mounting state. It is the same top view. It is the bottom view. It is the same front view. It is the same rear view. It is the same right view. It is AA sectional drawing. It is the BB sectional drawing. It is the CC sectional drawing. It is the same DD sectional drawing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Snow surface capture frame 11 Same front end 12 Same rear end 13 Same side 2 Crossing part 3 Upper fixed belt support part 31 Same belt attachment part 32 Same biting protrusion (biting protrusion with pin)
3a Upper part fixing belt 4 Ankle fixing belt support part 41 Same belt attaching part 42 Same small wall 43 Same biting protrusion (biting protrusion with pin)
44 Same drilling hole 45 Same drilling hole 4b Same ankle fixing belt S Snow shoes (boots)

Claims (8)

The snow catch frame that has a contour that far exceeds the contour of the bottom of the boots is formed in the crossing part of a predetermined width that mainly touches the shoe arch around the center of the snow front capture frame, or a portion that is slightly closer to the front. On the other hand, the hanging part protrudes into the space surrounded by the snow surface capturing frame in front of it, and the three sides are surrounded by the snow surface capturing frame on the front side of the hanging part. In addition, the upper fixing belt support part that is in contact with the shoe sole part on the front side of the arch extends into the space surrounded by the snow surface capturing frame on the rear side, and the snow on the rear side is It is in a state surrounded by a face-capturing frame, and approximately matches the shoe sole contour from the arch to the heel, and the edge on the end side is appropriately extended over the height range along the outer surface of the shoe heel. Each ankle fixing belt support that stands up To those integrally shaped, snow walking aid, characterized in that shall become moderately elastically deformable formed in the vertical direction.     It has a contour with a size far exceeding the contour of the bottom of the boots, and an inner predetermined width portion along the contour is formed on the snow surface capture frame, and is slightly around the center in the front-rear direction of the snow surface capture frame. A portion that is closer to the front is formed in a hanging portion of a predetermined width that crosses the space surrounded by the snow surface capturing frame and is orthogonal to the shoe sole direction. Projecting into the space surrounded by the snow surface capture frame ahead of it, making it appear that it is surrounded by the snow surface capture frame that is on the front side of the hanging part, and at the front side of the arch The upper part fixing belt support part that makes contact with the shoe sole part extends into the space surrounded by the snow surface capturing frame behind it, and three sides seem to be surrounded by the snow surface capturing frame on the rear side It should be in good condition and substantially match the sole contour from the arch to the heel, The ankle fixing belt support part that has the edge on the end side of the shoe raised up along the outer surface of the shoe shoe over an appropriate height range is formed in a continuous and integrated manner so that it can be elastically deformed appropriately in the vertical direction. A snow walking walking aid characterized by the fact that     It has a contour with a size far exceeding the contour of the bottom of the boots, and an inner predetermined width portion along the contour is formed on the snow surface capture frame, and is slightly around the center in the front-rear direction of the snow surface capture frame. A portion that is closer to the front is formed in a hanging portion of a predetermined width that crosses the space surrounded by the snow surface capturing frame and is orthogonal to the shoe sole direction. Projecting into the space surrounded by the snow surface capture frame ahead of it, making it appear that it is surrounded by the snow surface capture frame that is on the front side of the hanging part, and at the front side of the arch The upper part fixing belt support part that makes contact with the shoe sole part extends into the space surrounded by the snow surface capturing frame behind it, and three sides seem to be surrounded by the snow surface capturing frame on the rear side It should be in good condition and substantially match the sole contour from the arch to the heel, The ankle fixing belt support part that has the edge on the end side of the shoe raised up along the outer surface of the shoe shoe over an appropriate height range is formed in a continuous and integrated manner so that it can be elastically deformed appropriately in the vertical direction. In addition, the snow is characterized in that at least from the lower surface of the bridging portion and the ankle fixing belt support portion, a biting protrusion having a predetermined length or a pinning protrusion is projected downward. A walking aid.     The snow surface capturing frame is configured such that a main portion on the front side thereof is inclined obliquely upward, or the whole is gradually inclined obliquely upward from the front side of the passing portion. 3. A snow walking aid according to any one of the above.     The snow part capturing frame according to any one of claims 1 to 4, wherein a main part on the rear side of the snow surface capturing frame is curved in a moon shape having a lower left full width or a larger part of the left and right width when viewed from the rear. Walking aid     The snow surface walking aid according to any one of claims 1 to 5, wherein the snow surface capturing frame has a groove-shaped or V-shaped cross section that opens at least on the left and right sides.     The upper part fixing belt is attached to the upper part fixing belt support part and the ankle fixing belt support part is attached to the ankle fixing belt support part in advance. Snow walking aid.     The biting protrusion or the pinning protrusion is formed in a rectangular shape in a horizontal cross section, and their arrangement is partially irregular in the long side direction of the rectangular shape. The snow surface walking aid described.

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