JP2011072684A - Snowshoe - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a novel technique for a snowshoe which enables a wearer to easily get out when sunk into snow and which also makes deposit of snow, ice, etc., automatically shaken off and removed during walking. <P>SOLUTION: The snowshoe 1 is designed such that the front ends of a pair of right and left side-rails 2, 2 are each connected in-between with an anterior trunk 3 and similarly the rear ends are each connected in-between with a posterior trunk 4, that a frame-like body 10 surrounding a wearer's foot S shape is formed using the pair of right and left side-rails 2, 2 and the anterior/posterior trunks 3, 4 and that, longitudinally in the middle of the front and rear of the right and left side-rails 2, 2 and between suitable places slightly nearer to the front, a connecting bridge 5 is put across having a foot fixing mechanism 6 suitably incorporated therein. In addition, in the bridge 5 and the anterior/posterior trunks 3, 4, a resilient returning mechanism 8 is assembled that can expand a space between the right and left side-rails 2, 2 in accordance with a step-in motion of the wearer's foot S and that can restore the space between the right and left side-rails 2, 2. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

    The present invention relates to equipment that can assist in walking on snow, and more particularly to a swordfish or snowshoe that minimizes tangling of the foot when alternately feeding out as well as sinking into the snow. Yes, from the field of manufacturing them, as well as from the field of providing and selling equipment and equipment necessary for their transportation, storage, assembly and installation, materials required for those materials, machinery and parts, For example, the field of providing wood, stone, various fibers, plastics, various metal materials, etc., the field of electronic components incorporated in them, the control-related equipment that integrates them, the field of various measuring instruments, the equipment, the equipment Fields generally referred to as industrial machinery, such as the field of power machinery, the electric power used as energy, and the electric and oil fields as energy sources, and Wastes generated by testing and researching facilities and instruments, fields related to their display, sales, import / export, results of their use, and the operation of facilities and instruments for producing them There are no technical fields that are not related to the fields related to the collection and transportation of waste, the recycling field that efficiently recycles the waste, and the new fields that cannot be envisaged at this time.

(Points of interest)
When climbing winter mountains or walking in the snowy field, it is common to wear swordfish and snowshoes to increase the ground contact area of the feet and prevent sinking into the snow to walk lightly and safely. It is a well-known fact that it is effective, and those that are generally available on the market are made of hard, hard material such as wood, plastic, aluminum, etc. If the snow is soft or where there is space, such as where there is a fence or a fallen tree, even if you are wearing a snow cane, you can step through the snow layer and sink to the knee It is not easy to pull out swordfish and snowshoes that have submerged in the snow to the snow, especially on snow that has been frozen and tightened tightly. Not The straps and belts that are tied to the swordfish are once removed, and only the feet are removed from the snow. If you try to avoid the situation and take a large installation surface, even if you alternately feed the feet alternately, you will send a foot that you will send forward, but you will not normally carry the feet, In addition, there was a problem that it was forced to be unnatural, and the usefulness of the hand-drawn swordfish was lost, and on the other hand, it was forced to walk complicated and heavy.

(Conventional technology)
Concerned about this situation, for example, as represented by the invention proposed in the following Patent Document 1 (1), between the body frame that touches the snow-covered surface and the shoe, the axis around the toe toward the heel A round pipe that can be pivotally connected and supported is provided, and when used for crossing a steep slope, if the shoe is stepped on in the vertical direction, the entire bottom surface of the main body is in strong contact with the steep slope, creating a high frictional force and walking on a flat ground The rear pipe frame can be inserted into the front pipe frame so that it can be moved forward and backward, and both can be fixed at any insertion position. There are some cases where metal fittings are provided and the pipe frame ground contact area can be changed arbitrarily.

However, it is possible to mount the shoe so that it can rotate with respect to the grounding frame as shown in the former Patent Document 1 (1), and to make walking on an inclined surface safe and easy, or Patent Document 1 ( 2) In the case where the rear frame is attached to the front frame of Kanjiki so that the length of the frame can be changed, the ground frame part itself sinks into the snow and can be pulled out. If it disappears, its shape and dimensions cannot be changed easily. As before, remove the foot (shoe) from the swordfish, dig it out of the snow, and then again There is no change in that it is necessary to re-bind (shoes) to a predetermined position on the swordfish, and unnaturalness is associated with the movement of alternately pushing out the feet during walking, making it difficult to use. The disadvantage is And has a left can not be erased.
(1) JP 2001-137011 A (2) JP 2001-112512 A

(Awareness of problems)
As mentioned above, the various swordfish that have been proposed to date have been improved when walking on snow, but once they have submerged in the snow, and above all, the action when alternately pushing out the feet. This has stopped the major drawback of not showing any improvement, and the previous problem of consuming physical strength and increasing the burden on the legs and legs while walking is still left unattended. For those who live in the snowy country to see the current situation, KOJIKI is one of the indispensable footwear for life in winter, so as well as pursuing walking stability, trouble avoiding measures and smooth walking It can be said that there is a need for further improvement in the measures for realizing the operation.

(Object of invention)
Therefore, the present invention can easily escape even when it is submerged in the snow, and can automatically drop and eliminate snowing and icing while walking, and it can be as close to natural walking as possible. As a result of deciding whether it would be possible to develop a new swordfish technology that can be used in Japan, we started its development and research very quickly, and as a result of repeating trial and error over many years and numerous prototypes and experiments, this time The present invention has finally succeeded in realizing a kanzi having a novel structure, and the configuration thereof will be described in detail below together with an embodiment representative of the present invention shown in the drawings.

(Structure of the invention)
As can be clearly understood from the embodiments representing the present invention shown in the drawings, the kanjiki of the present invention basically has the following configuration.
That is, a pair of left and right side rails having a length corresponding to the length of the leg of the user to be used has a distance between the left and right sides of the user's leg that exceeds the width of the leg, and they are parallel to the foot shape. The left and right side rails are connected by a front arch trunk and the rear ends of the left and right side rails are connected by a rear arch trunk. A frame-shaped body that surrounds the user's foot shape is formed by the bow stem, and a bridge with a foot-binding mechanism is installed between the right and left side rails in the middle of the front and rear and slightly forward. On the other hand, the bridge and the front and rear bow stems can receive the subject's weight, and the right and left side rails can be expanded within the proper range. Based on rail spacing The structure was made incorporating a resilient return mechanism to allow return a snowshoe according to subject matter.

    When the expression of the swordfish composed of this basic structure is changed, the pair of left and right side rails having a length corresponding to the length of the target user's foot is shown as the distance between the left and right sides of the target user's foot. In this case, they are arranged so as to exceed the width of the foot and to be parallel to the foot shape, and between the front ends of the left and right side rails are the front arch stems and between the rear ends thereof are the back arch stems. A pair of left and right side rails and a front / rear bow stem form a frame-shaped main body that surrounds the user's foot shape. The foot restraint mechanism is bridged with a bridge built in place and connected, while a resilient return mechanism is built into the bridge and the front and back arch stems. Participation in the mechanism of spontaneous regression The left and right widths of the frame-shaped body are automatically expanded to increase the ground contact width within an appropriate range. It becomes a swordfish having a configuration that can be automatically deformed so as to return to.

    More specifically, a pair of left and right side rails in the form of a straight bar having a length corresponding to the length of the leg of the user to be used, the mutual distance between them exceeds the leg width in both the left and right folds of the user to be used, and And the left and right ends of the flexible front arch that has a convex arc shape extending forwardly between the front ends of the left and right side rails. Each of the left and right side rails are connected to each other, and the left and right ends of the flexible rear arch trunk having a convex arcuate shape extending rearward are connected between the rear ends of the left and right side rails. A rail-shaped main body that surrounds the user's foot shape is formed by the rail and the front and rear bow stems, and the right and left side rails are in the middle of the front and back, and slightly convex between the front and rear, and a convex arc toward the top vertically Bridges made of leaf springs in the shape of a bridge A flexible recurrence mechanism is formed with a bridge and flexible front and rear bow stems, and the left and right width of the bridge is greater than the width of the user's foot in the middle of the bridge. This is a swordfish composed of a footrest that is installed in place.

    In other words, a pair of left and right side rails in the form of a straight bar having a length corresponding to the length of the leg of the user to be used, the distance between them exceeds the leg width in the right and left folds of the person to be used, and they are The left and right side ends of the elastic front arch stem, which are arranged in parallel to the foot shape, and between the front ends of the left and right side rails, have a convex arc shape extending forward. The left and right side rails are connected between the rear ends of the left and right side rails by connecting the left and right ends of the elastic rear bow stem in a projecting circular arc shape extending rearward. In addition, a frame-shaped main body that surrounds the user's foot shape is formed by the front and rear bow trunks, and the right and left side rails are in the middle of the front and rear, and slightly between the front and rear, with a convex arc shape extending vertically upward The bridges made of leaf springs It is assumed that the elastic regression mechanism is formed with the made bridge and the front and rear bow stems, and the left and right widths larger than the user's foot size width at the center of the left and right width of the bridge, It is a swordfish composed of a structure in which a footrest with a mechanism incorporated in place is mounted.

    As described above, according to the swordfish of the present invention, unlike the conventional ones, when the user walks and steps on the user's feet (shoes) while wearing the unique features as described above, the bridge And the elastic recurrence mechanism consisting of the front and rear bow stems acts to widen the frame-shaped main body left and right side rails within the appropriate range, and expand the ground contact range to prevent sinking into the snow at each stage Every time it is released from the user's body weight in the course of walking, the elastic performance of the elastic regression mechanism bridge and the flexible or elastic performance of the front and rear bow stems The distance between the left and right side rails automatically and instantaneously reduces to a width suitable for walking, and the vibration caused by the instantaneous deformation shakes off snow and ice pieces attached to the frame-shaped main body and the outer peripheral wall. It will greatly reduce the burden, The power consumption can be kept to a minimum, and even if the hard snow layer on the surface layer is stepped on and submerged in the snow, the distance between the left and right side rails is automatically released when the weight on the bridge is released. It can be easily pulled out from the snow with low resistance without removing the cords and belts from the feet (shoes) and removing them from the legs (shoes). Ease, safety and mobility of climbing winter mountains and walking on snowy fields and ice An excellent feature is that the efficiency can be increased at each stage.

    In addition, the bridge and front / rear arch stems that make up the elastic return mechanism are used when the bridge is given elasticity and the front / rear arch stems are flexible. When the subject's body weight is added, only the bridge elastically supports the body weight due to its elastic force, and the front and rear arch stems follow and deform as the left and right side rails move apart (open) and approach. In addition, in the case where the bridging performance is given to all of the bridge and the front / rear bow stem, when the user's weight is added, the bridge and the front / rear bow stem cooperate to exert elasticity. , Its overall elasticity will elastically support the body weight, and in all cases, the same movement will be realized and walking movement on snow and ice will be brought close to normal walking behavior and stabilized. Will be able to.

    Of the total resilience of the resilience return mechanism, the resilience should be set so that 70% is exhibited by the bridge and the remaining 15% each by the front and rear bow stems. In some cases, these bridges will accurately catch the weight of the user, and the front and back arches will exhibit elasticity to the extent that they will not obstruct walking, increasing the toe kicking force and landing the heel It enhances actions such as shock buffering, and demonstrates the excellent effect of further improving walking efficiency and reducing fatigue.

    A swordfish formed by forming a slit on the bridge, inserting the clog teeth hanging down from the bottom wall of the footrest into the slit, and combining the claw at the lower end of the claw teeth so as to protrude downward. Each time the user is stepped on, the claw at the lower end of the clog tooth pierces into the snow or ice, and each claw is formed in a triangular plate shape orthogonal to the walking kick-out direction. It is possible to transmit the kicking force to snow and ice, and to realize a highly efficient and less fatigued safe walking by greatly reducing friction loss due to slip.

    In addition, Kanjiki, which is built with the left and right holding walls protruding upward on the top surface of the footrest, reliably prevents the user's feet (shoes) that are bound by the foot-binding mechanism from shifting in the left-right direction. In addition, it is possible to realize more efficient and safe walking, and furthermore, a swordfish that incorporates a footrest that is formed by integrally forming left and right hooking pieces on the left and right outer sides of each left and right holding wall, When the bridge receives an excessive load input exceeding its elastic performance, the upward convex arc shape of the bridge is reversed downward so that the left and right latching pieces engage with the left and right side rails. This will prevent any damage from occurring and will withstand heavy loads caused by jumping from steps or climbing over fallen trees. Can be excellent It becomes to achieve the large effect that.

    The swordfish is designed so that each part such as the left and right side rails, the front and rear bow trunks, the bridge, the foot tying mechanism, and the footrest can be assembled disassembled via the disassembly mechanism. It is easy to replace in a short time, and even when it is damaged, only damaged parts can be replaced individually and repaired, ensuring maintainability and eliminating the need to replace the entire swordfish with a new one. In addition to realizing a significant reduction in maintenance costs, each part can be replaced with a different size and shape according to various conditions such as the shoe size, stride, and weight of the target user. Replace the bridge and front and back arch stems, etc., which are components of the regenerative regression mechanism with replacement parts with the same shape and different bullet performance, depending on the walking technology of the user, snow quality, ice quality, topography, etc. It becomes to exhibit Xiu features that will that can be freely adjusted.

    In addition, in the case of a swordfish in which the front and rear bow stems are each made of a resilient material and incorporated with a symmetrically accordion-shaped bellows-like weak part in multiple locations in the middle of the bow. Each of the bellows-like soft parts distributed at multiple locations can disperse stress, effectively preventing breakage due to concentrated load, and the uneven shape enhances the frictional force on snow and ice to improve walking safety As a result, the landing of the moth and the tip of the toe are prevented from slipping and the walking safety is enhanced at each stage.

    Further, the elastic regression mechanism can expand the left and right dimension width of the frame-shaped main body when receiving the user's body weight within a range of 15 to 22% with respect to the width of the left and right dimension of the frame-shaped main body in an unloaded state. Even when standing with both left and right feet in place, it is possible to avoid interference between the frame-shaped main bodies of both the left and right feet, even when the user is slightly open, while walking In addition, the frame body of the wing that is moving either left or right touches the ground, the shin, or the knee of the ground that is opposite to the left and right, leading to an unnatural walking behavior. It is possible to set the dimensions so that even a little can be avoided, and the excellent effect of being able to realize walking on the snow and ice that is safer and lighter is exhibited.

In implementing the present invention having the above-described configuration, the best or desirable mode will be described.
The frame-shaped body surrounds the user's foot shape, and is interposed between the ground contact surface such as on the snow and the user's foot, and fulfills the function of expanding the contact area of the user's foot in a frame shape, When the user's weight is received and grounded on the snow, the frame-shaped main body shall have sufficient rigidity and strength to support the user's feet with sufficient strength to withstand the load. The left and right widths of the frame-shaped main body automatically expands within the appropriate range and the right and left widths of the frame-shaped body automatically return to the original spacing when released from the user's weight. It must be equipped with an automatically deformable elastic return mechanism, and the front end of each pair of left and right side rails is connected with the front arch and the back end is connected with the back arch. It should be formed in the shape of a frame that surrounds the subject's foot shape. Can be partly made of wood, metal, synthetic resin, or various composite materials with the same or higher strength. It is desirable to be within the range of 15 to 22% of the size, and if it is less than 15%, the contact width expansion function cannot be obtained sufficiently, so that it is difficult to obtain a function to improve walking stability and the weight is released. When the width reduction ratio is small and it is feared that it will be difficult to escape when it sinks into the snow, etc. Also, if it exceeds 22%, the ground contact width when stepped on will expand too much and warp There is a risk that the heels and the left and right feet are easily caught, and that the walking safety cannot be ensured.

    The side rails form the left and right side frame portions of the frame-shaped main body that surrounds the user's foot shape, and must be strong enough to support the user's weight. The front rails of the side rails are connected to each other by a front arch stem and each rear end is connected by a rear arch stem. The built-in bridges should be bridged and connected, and a resilient return mechanism should be built into these bridges and the front and rear bow stems. As shown in the examples described later, the left and right side rails are Straight bar shape made of wood, plywood, metal, reinforced plastic, various composite materials of equivalent strength, or a combination of metal parts and synthetic resin parts, each of which corresponds to the length of the user's feet. Stuff Can be, the parts threaded holes and bolts and nuts to the point of connection, to those having a decomposition mechanism consisting of various joint structures is desirable.

    The front and rear bow stems form the front and rear side frame parts of the frame-shaped main body that surrounds the user's foot shape, the front and rear ends of the pair of left and right side rails are frame-like, respectively, and the width between the left and right side rails Enlarging within an appropriate range and connecting the deformation of returning to the original interval width in a repeatable manner to ensure the connection strength at the front and rear ends of the frame-shaped main body, part or all of them Incorporating a resilient return mechanism, it must be flexible and preferably resilient, and the front and rear bow stems, respectively, all or part of which are made of wood and plywood It can be made of synthetic resin, metal, or a composite material thereof, and it is made of a resilient material as shown in the examples described later, and has a symmetrical shape in a plurality of appropriate locations in the middle of the arcuate shape. Or soft and weak as asymmetrical shape Each soft part incorporates an accordion-shaped bent part, a thin part with a thin wall pressure dimension, a notch part, or another elastic part. And so on.

    The bridge allows the user's feet to be worn between the right and left long side rails of the frame-shaped main body, and slightly between the front and the right side rail. In addition, it is possible to incorporate a resilient return mechanism that can be restored based on the distance between the left and right side rails when released from the user's body weight. It is necessary to link the appropriate places slightly closer to the front and incorporate a foot-binding mechanism that can bind the user's feet to the appropriate position, and is made of wood, plywood, metal, synthetic resin, or a combination of these. It is made of a material leaf spring and can be used for elastic parts such as rubber block boards and elastic return force that can convert downward compression load due to the user's body weight into expansion force between the left and right side rails Linkage incorporating an elastic component, or, it is possible to replace a downward vertical compressive forces, such as the cylinder-piston mechanism which enables conversion to a pressure in the horizontal left-right direction via a hydraulic circuit.

    The foot-binding mechanism allows the user's foot to be bound to the appropriate position of the bridge with sufficient strength, and is firmly and securely fixed so that it does not inadvertently disengage from the user's foot wearing the frame-shaped body. In addition to being able to be appropriately assembled with a strap or belt for tying the user's foot to the right place on the bridge, as shown in the examples described later A strap, a belt, or a strap that allows the user's foot to be temporarily fixed to the footrest by attaching a footrest that is larger than the user's foot size width to the center of the left and right width of the bridge. It is possible to use fixing brackets or the like.

    The footrest is a posture in which the shoe sole of the user's foot is placed in a proper position on the bridge, allowing the user's own weight (foot) to be stepped on and the foot of a string, belt, etc. It must be capable of being bound by a binding mechanism and can be temporarily fixed integrally to the bridge and the frame-shaped body, and must be able to sufficiently withstand repeated loads of the user's body weight. It is possible to form an uneven part for slip prevention on the top surface that comes into contact with the shoe sole, and a long slit on the left and right is drilled vertically in the center of the longitudinal dimension of the bridge, corresponding to the slit From the bottom wall of the footrest, the clogging teeth that can be combined with the deposition slit in a penetrating manner and integrally formed with one or more clawes that can be exposed in a downward projecting manner under the slit are suspended. To be In addition, the right and left holding walls that can prevent the horizontal displacement of the legs are projected upward from the center of the top surface of the footrest and beyond the width of the target person's feet. The left and right latching piece parts for preventing settlement are integrally formed with the right and left protruding dimension lengths that reach the left and right side rails when the user's body weight is received and the mutual distance is in an expanded state. Can be.

When the target user steps on the swordfish worn on his / her foot, the frame-like body that receives the weight automatically expands the left / right width and expands the ground contact width within an appropriate range. In addition, when released from the user's body weight, the left and right widths of the frame-shaped main body can be automatically deformed so as to automatically return to the original interval dimensions, It must be integrated and consists of a combination of a resilient bridge and a flexible front and rear bow stem, or a resilient bridge and a resilient front and rear bow stem. As shown in the examples to be described later, the frame-shaped main body left-right width when receiving the user's weight is changed to the unloaded frame-shaped main body left-right width. On the other hand, it shall be expandable within a range of 15 to 22%. It is desirable.
In the following, the structure of the present invention will be described in detail together with an embodiment representative of the present invention shown in the drawings.

    FIG. 1 is a side view of FIG. 1, FIG. 2 is a plan view of FIG. 2, FIG. 3 is a front view of FIG. 3, FIG. 4 is a side view and a plan view of a disassembled frame-shaped body, FIG. FIG. 7 is a plan view of a bridge with an enlarged left and right width, FIG. 8 is a front view of a bridge with an enlarged left and right width, and FIG. 10 is a front view of a swordfish incorporating a partially modified footrest, a side view of a swordfish incorporating a partially modified footrest of FIG. 11, and a swordfish incorporating a partially modified footrest of FIG. FIG. 13 is a front view of a state in which the partially modified footrest built-in swordfish in FIG. 13 is expanded to the left and right, and FIG. 14 is a front view of the state in which the partially modified footrest left and right latching pieces are joined to the side rail. In the example shown in Fig. 2, the front arch stem 3 is used between the pair of left and right side rails 2, 2 and the front ends. The respective rear ends are connected to each other by a rear arch stem 4 and a pair of left and right side rails 2 and 2 and front and rear arch stems 3 and 4 form a frame-like main body 10 surrounding a user's foot shape. In addition, the right and left side rails 2 and 2 are connected to each other between the right and left side rails 2 and 2 slightly bridged between the front and the right side rails 2 and 2 with a bridge 5 having a leg binding mechanism 6 incorporated in place. -The rear bow trunks 3 and 4 are capable of expanding the distance between the left and right side rails 2 and 2 according to the stepping action of the user's foot S, and allowing the return to be restored based on the distance between the left and right side rails 2 and 2. A typical embodiment of a swordfish of the present invention in which the sex regression mechanism 8 is incorporated will be described.

    As can be clearly understood from each of these drawings, the swordfish 1 of the present invention is made of an aluminum alloy set to a length SL of, for example, 25 to 27 cm corresponding to the length of the user's foot S dimension as shown in FIG. The outer layer pipes 21, 21 that are dimensioned so that both ends of the inner layer pipes 20, 20, which are straight round bar-shaped pipes, are exposed as projecting ends 22, 23, respectively, are fitted to the outer walls of the inner layer pipes 20, 20. It has a pair of left and right side rails 2, 2 that are integrated, and penetrates in the thickness direction at a plurality of locations around the circumference of each of the front and rear end portions 22, 23, and a small screw on the inner wall Are formed with screw holes 90, 90,..., To which the nuts are welded, and as shown in FIGS. And they are parallel to the foot shape A pair of through-holes spaced from each other at appropriate intervals from the upper peripheral wall of the outer layer pipes 21 and 21 that are closer to the front than the center C1 of the front and rear dimension length SL of the left and right side rails 2 and 2 are arranged in the vertical thickness direction. ... Are formed in the inner wall of the inner layer pipes 20, 20 by welding large pan screw nuts 91, 91,... At the center C 2 between the front and rear large pan screw screw holes 91, 91,. Spike pieces 24 and 24 each having a plate whose side shape is an inverted isosceles triangle are projected from the vertically lower outer walls of the corresponding outer layer pipes 21 and 21.

    As shown in FIGS. 1 to 4, the left and right side rails 2, 2 have a front-facing end 22, 22 with a convex arc shape toward the front so that the outside of the user's foot S toe wraps around the toe. And the left and right ends are curved upward as the center (front) is directed toward the side, and further, the left and right two places near the front (center), a total of four places, and the three left and right places from the left and right ends. An arcuate stainless steel plate spring front arch stem 3 formed by forming a bellows-like soft portion 30, 30,. Cap-shaped connecting sleeves 31, 31 that are integrally formed on the left and right ends of the trunk 3, are set so that the inner diameter matches the outer diameter of the inner layer pipe 20, and the outer diameter matches the outer diameter of the outer layer pipe 21. Corresponds to the front connection end 22, 22 small pan screw screw holes 90, 90, ... Lateral connecting sleeve 31 small pan screws 92 and 92 from the respective through hole was, detachably screwed ..., and firmly to the concatenation.

    As shown in FIGS. 1 to 4, the left and right side rails 2, 2 have a convex arc shape toward the rear so that the outside of the user's foot S 踵 wraps around the rear connection end portions 23, 23. And the left and right ends are slightly curved upward (the curvature of the upward direction is smaller than that of the front bow stem 3) as it goes from the right to the center (backward). After the arc-shaped stainless steel plate spring is formed by forming a radial bellows-like soft part 40, 40,... Cap-shaped connecting sleeves 41 and 41 are provided at the left and right ends of the bow 4 and set so that the inner diameter matches the outer diameter of the inner layer pipe 20 and the outer diameter matches the outer diameter of the outer layer pipe 21. Screw holes 90, 90,... For the small pan screws in the rear connection ends 23, 23 Small pan screws 92, 92 through the through holes of the right and left connecting sleeve 41, 41 corresponding to, screwed ..., and that detachably and firmly connected.

    As shown in FIG. 5, the bridge 5 is a rectangular shape having a planar shape with a left-right width BW of 22 cm and a front-rear length BL of 7.5 cm, and a front shape height BH of 9-11 cm. Cylindrical seat that can be joined to the outer peripheral walls of the left and right side rails 2 and 2 and the outer layer pipes 21 and 21 at the left and right ends respectively. (Left-and-left spanning end) Made of stainless steel leaf springs with 50 and 50 integrally formed, and in the center of the front and rear dimension length, between the left and right cylindrical face seats 50 and 50, the planar shape is a left-right single-letter shape The slit 51 is penetrated in the vertical thickness direction, and a pair of bolt through holes 93, 93 are formed in the center of the left and right widths in front of and behind the deposition slit 51 to form a pair of left and right cylindrical seats 50, 50 each includes large pan screws on the left and right side rails 2 and 2 Screw holes 91, 91, is obtained by drilling a through-hole 94, 94 for the corresponding large pot screw to ....

    As shown in FIGS. 1 and 2, a footrest 7 can be combined with the bridge 5, and the footrest 7 has a lateral width of 13 cm (DW in FIG. 6), as shown in FIG. The top surface of a flat rectangular thick base plate 70 having a longitudinal length of 8 cm (DL in FIG. 6) is provided with a non-slip concavo-convex process. A clog tooth 71 that can be fitted to the contact slit 51 and can be attached in a penetrating manner and integrally formed with saw blade-like claws 72, 72,... Front and rear clogs 71 at the center of the left and right widths correspond to the side of the clog tooth 71, and can be accommodated in the bridge 5 bolt through-holes 93, 93. Counterbore holes 95, 95 are drilled vertically downward, and the The bottom surface wall of the footrest 7 in the center of the left and right width is joined to the top wall of the center of the left and right width of the die 5, and the clogs 71 penetrate downwardly from the deposition slit 51, and each bolt has a counterbore hole. 95 and 95 are arranged so as to be concentrically overlapped with the bolt through holes 93 and 93, respectively, and as indicated by broken lines in FIG. 1, bolt nuts 97 disposed below the bolt through holes 93 and 93, The hexagon socket head cap bolts 96, 96 mounted downward from the counterbore holes 95, 95 for bolts can be screwed into 97 and integrated in a releasable manner.

    As shown in FIG. 1 and FIG. 2, the bridge 5 on which the footrest 7 is mounted and incorporated with hexagon socket bolts and nuts 96, 96, 97, 97 has its left and right spanning ends 50, 50 at the left and right sides. Large pan screw screws 91, 91,... Are placed on the peripheral walls closer to the front by 3-6 cm of the eccentric dimension CL than the center C1 of the longitudinal dimension length of the rails 2 and 2, respectively. The through-holes 94, 94,... Are concentrically overlapped with each other, and the large pan screws 98, 98 are screwed downward to be disassembled and firmly combined, as shown in FIG. The swordfish 1 in the unloaded state is set so that the height TH from the left and right side rails 2 and 2 to the tip of the footrest 7 claw teeth 71 claw 72 is 7 to 8 cm. .

    Further, as shown in FIG. 2, the rainbow trout 1 is set so that the left and right width dimension W1 is 22 cm and the longitudinal length L is 33 cm in an unloaded state. Each leaf spring of the rear bow trunks 3 and 4 receives the weight of the user to be used and exhibits a resilience performance. The generation ratio of the resilience is 70% of the bridge 5 -It is supposed to form the elastic regression mechanism 8 set so that the rear bow trunks 3 and 4 are each 15%.

As shown in FIGS. 1, 3, and 8, buckles are attached to the left and right edges of the footrest 7 so that the user's foot (shoes) S can be detachably attached and fixed. Alternatively, the upper and lower ends of the upper belt 60 having the collar belt 61 equipped with a length adjusting mechanism such as a free fastener can be screwed together with a total of six pan screws 99, 99,. 6 is formed.
The upper belt 60 having the heel belt 61 can be changed to one having a length adjusting mechanism (not shown) such as a buckle or a free fastener on the upper portion, and is used for a conventional rainbow trout. A cord (not shown) like the above is wrapped around the bridge 5 or inserted into the attachment slit 51 to be routed, and the user's foot (shoes) S can be changed. Is possible.

    As shown in FIG. 9 to FIG. 14, the foot binding mechanism 6 footrest 7 slightly exceeds the user's foot (shoe) S dimension width from the center of the top surface of the footrest 7 base plate 70. The right and left holding walls 73 and 73 that can prevent the right and left direction deviation of the foot are projected upward at the right and left appropriate positions, and the left and right outside walls are used as shown in FIG. Subsidence with left and right protruding dimensions reaching the outer walls of the left and right side rails 2 and 2 in a state where the distance between the left and right side rails 2 and 2 is maximized due to excessive weight due to landing after jumping or landing from a high place. The right and left latching pieces 74 and 74 for prevention are formed integrally, and the left and right outer walls of the left and right holding walls 73 and 73 are each provided with a length adjusting mechanism such as a buckle or a universal fastener. The left and right lower ends of the upper belt 60 having the saddle belt 61 provided are six each. One 12 total pot screw nuts 99, 99, screwed bound by .... is as forming a foot Keibaku mechanism 6.

(Operation of Example 1)
As shown in FIGS. 4 to 6, the rainbow trout 1 of the present invention having the above-described configuration has a front arch stem 3 between the front ends of the pair of left and right side rails 2 and 2, and a rear arch stem 4 between the rear ends. A frame-shaped main body 10 is formed by coupling, and a bridge 5 incorporating a footrest 7 is placed between appropriate positions near the front of the left and right side rails 2 and 2, and a heel belt 61 is attached to the footrest 7. It is assumed that the upper belt 60 has been mounted, and the joint part thereof has a disassembly mechanism 9 with screws, bolts and nuts, and can be easily disassembled and assembled using tools such as a screwdriver or a hexagon wrench. It has become a thing.

    As shown in FIGS. 1 to 3, the swordfish 1 mounts the sole of the user's foot (shoe) S on the footrest 7 top center C of the foot binding mechanism 6, and the upper belt 60, It is tightly bound with the heel belt 61 and securely attached, and can be used for walking on snow. As shown in FIGS. 2 and 3, the swordfish 1 having a left and right width W1 (22 cm) exceeds 15 kg ± 3 kg of the user. When subjected to a walking load, as shown in FIG. 7 and FIG. 8, the left and right width W2 (25.3 to 26.84 cm) is expanded by 15 to 22% by the action of the elastic regression mechanism 8, and the frame-shaped main body 10 As shown in Fig. 2 and Fig. 3, when it is released from the walking load, it will exert the effect of expanding the contact area and improving the walking stability and the ability to prevent sinking into the snow. Sexual regression mechanism 8 has a frame-like main body 10 with an original left-right width W1 (22 cm) Automatically it is restored during its instantaneous deformation restoration process, shaken like automatically snow and ice adhering on and around the frame-like body 10, and that cause an effect that results in removal.

    When the elastic deformation start load of the elastic regression mechanism 8 bridge 5 is set so as to exceed 18 kg, a sufficient change in the contact width of the frame-shaped main body 10 can be obtained during normal walking. Therefore, there is a risk that the performance of preventing the sinking into snow cannot be effectively improved, and when the elastic deformation starting load is set to less than 12 kg, the strength of the bridge 5 Can not be obtained sufficiently, it is not only difficult to walk stably, there is a possibility that it becomes inferior in durability, and such an excess or deficiency of the elastic performance of the bridge 5 is the elastic regression It is possible to adjust the resilience performance of the front and rear bow stems 3 and 4 of the mechanism 8 appropriately (by changing parts, adding or deleting parts, etc.) to balance the entire frame-shaped main body 10.

    In addition, as shown in FIG. 3, the frame-shaped main body 10 is protruded downward at a position directly below the connection portion of the bridge 5 cylindrical face seats 50, 50 of the left and right side rails 2, 2. As shown in FIG. 8, when the left and right side rails 2, 2 receive the user load and widen the width between the left and right side rails 2, 24, as shown in FIG. 8, 24, 24 downward tips are automatically tilted to the left and right sides and deformed to pierce into snow or ice, so that a ground contact performance with higher frictional force can be exhibited.

    Further, as shown in FIGS. 1 to 6, the attachment slit 51 of the bridge 5 secures the fixing strength of the footrest 7 by enabling the footrest 7 clogs 71 to be fitted in a fitting state. If the upper belt 60 having the heel belt 61 is not provided, the footrests 7 on the bridge 5 can be used in common by inserting or tying straps or belts to the attachment slit 51. The target person's foot (shoe) S can be fixed.

    Then, as shown in FIG. 8, when the person to be used steps on the swordfish 1, the claw 72 formed on the lower edge of the footrest 7 clog tooth 71 is stuck in the snow or ice and has an anti-slip action. It is possible to transmit the kicking force to the ground snow surface or ice surface efficiently, and to walk efficiently and with less fatigue, and the legs formed as shown in FIGS. In the platform 7, the left and right holding walls 73, 73 support the user target foot (shoes) S from the left and right sides, so that the user target foot (shoe) S slides on the footrest 7 reliably. As a result, the stability of walking is improved and the load on the left and right sides of the upper belt 60 is greatly reduced.

    Further, as shown in FIGS. 9 to 12, the footrest 7 with the left and right latching piece portions 74, 74 extending from the left and right ends, as shown in FIG. As with 1, it is possible to walk stably, exceeding the resilience performance of the bridge 5 and the front and rear bow trunks 3 and 4, which are the resilient recurrence mechanism 8, such as jumping down from a step or climbing over a fallen tree When a heavy load is applied, as shown in FIG. 14, the left and right end lower surface walls of the left and right hooking pieces 74 and 74 are connected to the side rails 2 and 2 (the bridge 5 left and right hanging ends 50 and 50). Abuts on the top wall or the large pan screws 98, 98,... That fix them, and acts to transmit the user's body weight directly to the side rails 2, 2 without the bridge 5; The concave inversion of the convex bridge shape of the bridge 5 is surely prevented, Large ground width and maximum ground friction and stably reliably capable of exhibiting, at the moment that has been released from the large load, as shown in FIG. 10, becomes possible return to the original lateral width W1 shape.

(Effect of Example 1)
In addition to the features described in the section of the effect of the present invention, the swordfish 1 of Example 1 having the above-described configuration is subjected to a walking load exceeding 15 kg ± 3 kg of the user, as shown in FIGS. As shown in FIG. 8, the elastic regression mechanism 8 automatically works, and the frame-shaped main body 10 and the left and right side rails 2, 2 distance W1 (shown in FIG. 2 and FIG. 3) 22 cm within the range of 15 to 22%. The distance W2 is expanded to 25.3 to 26.84 cm, and the ground contact width has no hindrance to walking, and is capable of exhibiting excellent snow subsidence prevention performance or on-ice friction increase performance. It is possible to demonstrate stable walking performance on snow (on ice) in each stage, compared to the case where the elastic regression mechanism 8 is operated with a load of less than 12 kg or the one that does not operate unless the load exceeds 18 kg. Become.

    In addition, as shown in FIGS. 1 and 3, spike pieces 24, 24 projecting from the lower outer peripheral wall of the left and right side rails 2, 2 are added to the weight of the user and the interval between the left and right side rails 2, 2. As shown by the arrows in FIG. 8, as shown by the arrows in FIG. 8, each downward tip spreads toward the left and right outer sides and becomes a front “eight” -shaped inclined posture, and is stuck in the snow or ice. The excellent effect of being able to generate a high ground frictional force can be achieved, and when released from the body weight, it automatically returns to the original vertical posture.

    Further, as shown in FIGS. 1 and 2, the top surface of the foot binding mechanism 6 footrest 7 is provided with uneven processing for preventing slipping, and the upper belt having the heel belt 61 whose length can be adjusted. 60, and the user's foot (shoe) S can be more securely fixed. As shown in FIG. 1 and FIG. 3, or FIG. 10 and FIG. It is connected to either the left and right end walls of the footrest 7 or the left and right outer walls of the left and right holding walls 73, 73 with the pan screws (.nuts) 99, 99,. Tightening load is applied in the direction perpendicular to the axis of the screws 99, 99, ..., so that each pan screw 99, 99, ... is prevented from being pulled out and dropped, and has excellent durability. It can be.

    Further, as shown in FIGS. 1 to 3, the front and rear bow stems 3 and 4 are arranged radially from the center of curvature of each arcuate shape, and a plurality of bellows-like soft portions 30, 30,... .., 40, 40,... Are made of arcuate stainless steel plate springs, so that the irregular shape of each bellows-like soft part 30, 30,. In addition to increasing the frictional force on snow and ice in each step, the load is distributed and the durability is greatly increased. In addition, the elastic parts including the bridge 5 are made of stainless steel plates. Because it is made of aluminum alloy, it is excellent in rust prevention, and it is possible to obtain high quality in terms of durability and weight reduction, and it is reliable enough to withstand abuse in harsh natural environments such as snowy mountains in the severe winter season Providing Kanjiki 1 that excels in nature Kill.

(Conclusion)
As described above, the swordfish of the present invention can achieve the intended purpose evenly by its new configuration, and is easy to manufacture, and compared to the conventional swordfish technology, the ground friction on snow and ice. In addition to greatly increasing the force and making it as close to natural walking as possible, it improves the ease and stability of walking, achieves light weight and low cost, and reduces the fatigue of walking on snow in each step, and some parts Even if it is damaged, maintenance has been greatly improved so that it can be stopped by replacing some parts, so it is far more economical and friendly to the natural environment. , Of course, for people in snowy countries who have continued to use without solving the problem, mountaineering enthusiasts and hunting associations who want to realize higher walking performance and safety and outdoor products Also been highly evaluated in the field, use over a wide range, it is expected to be those that continue to spread.

The drawings show a typical embodiment that embodies the technical idea of the swordfish of the present invention.
It is a side view which shows a swordfish. It is a top view which shows a swordfish. It is a front view which shows a swordfish. It is the side view and top view which show the frame-shaped main body of a decomposition | disassembly state. It is a trihedral view showing a bridge. It is a three-plane figure which shows a footrest. It is a top view which shows the bridge which the left-right width expanded. It is a front view which shows the bridge where the left-right width expanded. It is a three-view figure which shows the footrest which changed one part. It is a front view which shows the swordfish incorporating the footrest of a part change. It is a side view which shows the swordfish incorporating the footrest of a part change. It is a top view which shows a swordfish incorporating the footrest of a part change. It is a front view which shows the swordfish which the left-right width expanded. It is a front view which shows the state which the right-and-left latching piece part joined to the side rail.

1 Kanjiki
10 Same frame body 2 Side rail
20 Inner pipe
21 Outer pipe
22 Same connection end
23 After connection end
24 Same spike piece 3 Forearm stem
30 Same bellows-like weak part
31 Same connecting sleeve 4 Rear bow stem
40 Same bellows-like weak part
41 Same connecting sleeve 5 Bridge
50 Same Left and right spanning ends (tubular seat)
51 Same deposition slit 6 Foot binding mechanism
60 Crotch belt
61 Same saddle belt 7 Footrest
70 Same base plate
71 Clogs
72 Same claw
73 Same left and right holding wall
74 Left and right latching piece 8 Elasticity return mechanism 9 Disassembly mechanism
90 Screw hole for small pan screw
91 Screw hole for large pan screw
92 The same small pan screw
93 Bolt through hole for the bolt
94 Same large pan screw through hole
95 Counterbore for bolt
96 Same hexagon socket head cap screw
97 Bolt nut
98 Large pan screw
99 Same pan-screw / nut S Applicable feet (shoes)
SL Dimensional length of leg of user C1 Center of longitudinal length of left and right side rails 2 C2 Center position of longitudinal length of bridge 5 footrest 7 CL Eccentric dimension W1 Frame body 10 Left and right width W2 Expanded frame body 10 Left and right width BW Bridge 5 left and right width BL Bridge 5 front and rear length BH Bridge 5 height DW Foot rest 7 left and right width DL Foot rest 7 front and rear length TH Height to claw 72 tip

Claims (10)

    A pair of left and right side rails with a length corresponding to the length of the leg of the user to be used is arranged so that the mutual distance exceeds the width of the leg on both the left and right sides of the user's leg, and they are parallel to the foot shape. The left and right side rails are connected by a front arch stem between the front ends of the left and right side rails, and a rear arch stem is connected between the rear ends of the left and right side rails. To form a frame-shaped body that encloses the user's foot shape, and bridges between the right and left side rails in the middle of the front and rear, and slightly between the front and back, with a foot binding mechanism incorporated in place. On the other hand, these bridges and the front and rear bow stems can receive the user's weight, and the distance between the left and right side rails can be expanded within an appropriate range. Can be restored based on Snowshoe, wherein the thing made incorporate resilient return mechanism to.     A pair of left and right side rails with a length corresponding to the length of the leg of the user to be used is arranged so that the mutual distance exceeds the width of the leg on both the left and right sides of the user's leg, and they are parallel to the foot shape. The left and right side rails are connected by a front arch stem between the front ends of the left and right side rails, and a rear arch stem is connected between the rear ends of the left and right side rails. To form a frame-shaped body that encloses the user's foot shape, and bridges between the right and left side rails in the middle of the front and rear, and slightly between the front and back, with a foot binding mechanism incorporated in place. On the other hand, a resilient regression mechanism is built into the bridge and the front and rear bow stems, and when the user steps in, the weight is added to the resilient regression mechanism, and the left and right widths of the frame-shaped body are automatically adjusted. Expand the grounding width within the appropriate range Snowshoe and, also, that when released from the target user weight, characterized in that the lateral width of the frame-shaped body is assumed to be a possible automatic deformable to return automatically to the original spacing dimension.     A pair of left and right side rails in the form of a straight bar with a length corresponding to the length of the leg of the user to be used, the distance between them exceeds the width of the leg on both the left and right sides of the user's leg, and they are parallel to the foot shape In addition, the left and right ends of the flexible front arch trunk having a convex arcuate shape extending forward are connected between the front ends of the left and right side rails. Between the rear ends of the left and right side rails, the left and right ends of a flexible rear bow trunk having a convex arc shape extending backward are connected to each other, and the pair of left and right side rails, front and rear bows are connected. Made of leaf springs that form a frame-shaped main body that surrounds the user's foot shape with the trunk, and a convex arc shape in the vertical direction between the right and left side rails and in the middle of the front and rear slightly The bridges of the bridges, and those leaf spring bridges and A flexible recurrence mechanism is formed with the front and back bow stems, and the left and right widths are larger than the user's foot size width at the center of the left and right width of the bridge. A swordfish, characterized by having a built-in footrest.     A pair of left and right side rails in the form of a straight bar with a length corresponding to the length of the leg of the user to be used, the distance between them exceeds the width of the leg on both the left and right sides of the user's leg, and they are parallel to the foot shape In addition, the left and right ends of the elastic front arch trunk, which has a convex arcuate shape extending forward, are connected between the front ends of the left and right side rails. Between the rear ends of the left and right side rails, the left and right ends of a resilient rear bow stem that is convexly extended in a rearward direction are connected, and a pair of left and right side rails, front and rear bows are connected. Made of leaf springs that form a frame-shaped main body that surrounds the user's foot shape with the trunk, and a convex arc shape in the vertical direction between the right and left side rails and in the middle of the front and rear slightly The bridges of the bridges, and those leaf spring bridges and It is assumed that the elastic recurrence mechanism is formed with the front and back bow stems, and the left and right widths are larger than the user's foot size width at the center of the left and right width of the bridge, and the foot binding mechanism is in place. A swordfish, characterized by having a built-in footrest.     5. The elastic return mechanism is set to be elastic so that 70% of the total elastic force is exhibited by the bridge and the remaining 15% is exhibited by the front and rear bow trunks, respectively. The described swordfish.     The bridge has a long slit on the left and right in the center in the longitudinal dimension, and can be combined in a penetrating manner from the footrest bottom wall corresponding to the slit, 6. A swordfish according to any one of claims 3 to 5, wherein a clog tooth formed by integrally forming one or a plurality of claws that can be exposed in a downward projecting manner is drooped under the deposition slit.     The footrest is provided with a left and right holding wall that can prevent the left and right lateral displacement of the foot from the center of the top surface to the right and left appropriate places that exceed the user's foot size width. The left and right latching piece parts for preventing settlement are integrally formed with the right and left protruding dimension lengths that reach the left and right side rails when the user's body weight is received and the mutual distance is in an expanded state. The swordfish according to any one of claims 3 to 6, which is intended.     Left and right side rail front ends and front arch stem left and right ends, left and right side rail rear ends and rear arch stem left and right ends, and left and right side rails each in the middle of the front and rear, slightly between the front and right and bridge left and right spanning ends The swordfish according to any one of claims 1 to 7, wherein a disassembly mechanism is incorporated in each of the connection portions.     The front and rear bow trunks are all made of a resilient material, respectively, and are provided with a symmetrically accordion-shaped bellows-like soft part at a plurality of appropriate positions in the middle of the arcuate shape. Kanjiki according to any one of the above.     The elastic regression mechanism can expand the width of the left and right sides of the frame-shaped main body when it receives the user's body weight within a range of 15 to 22% of the width of the left and right dimensions of the frame-shaped main body in an unloaded state. The swordfish according to any one of claims 1 to 9, wherein

Images