JP2017221283A - Crampon - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide crampons that can be attached and detached to/from shoes, can make claws project from shoe soles when in use, and can make the claws be retreated from the shoe soles when not in use, while being mounted in the shoes.SOLUTION: A crampon includes a fixing part 4 applied to a plantar arch part 3a of a shoe sole 3 and can be attached/detached to/from a shoe 2 by a fixing band 8, and a movable part 5 attached to the fixing part in a turning manner and having multiple claws 10. The movable part 5 can be turned to a use position where the claws 10 are positioned downward from the shoe sole, and a non-use position where the claws 10 are in the upper part from the shoe sole and positioned in the outward of the shoe. The fixing part 4 has a shaft part 7 at both ends, and the movable part 5 has the U-shape surrounding the outside of a front portion from the plantar arch part of the shoe sole and is attached to the shaft part in the turning manner. The movable part 5 further has a support bar 12 for supporting shoe sole and a tightening band 15 for tightening the movable part 5 to the shoe when in the use position.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a crampon that can be worn on the bottom of a shoe and can safely walk on snow.

  Aizen is attached to the sole of the shoe so as not to slip on mountain trails with snow and residual snow or frozen mountain trails. Aizen is not worn on snow-free roads during mountain climbing, but if there is residual snow, it is removed from the zack and attached to the shoe sole. Further, if there is no remaining snow, etc., it is difficult to walk with the crampons, so it is necessary to remove crampons. In general, crampons are attached by a band, so it takes time to attach and detach, and is complicated. In addition, it is necessary to secure a detachable place on the side of the road so as not to disturb other climbers. In this way, when attaching and detaching crampons, traffic on the mountain trail and congestion at the attachment and detachment locations are caused.

  In Patent Document 1, a stirrup is formed so as to come into contact with the shoe sole, and spikes that slide up and down via springs are provided on both sides of the reed, and the spike is pushed in on a hard road surface. There has been proposed a crampon with a spring force applied to the surface.

  However, the Aizen of Patent Document 1 has a problem that a spike is pushed into a frozen road surface and the grip does not work, and it is difficult to walk on a road surface such as soil.

  Patent Document 2 discloses that the shoe itself has a non-slip claw or spike built therein, and a recess is provided in the shoe sole so that the nail protrudes from the shoe ground contact surface and the nail is retracted from the shoe contact surface. Anti-skid shoes that are held at the storage position stored in the recess have been proposed. Patent Document 3 proposes a spike built-in shoe in which a storage space is formed in the shoe sole, and a spike unit can be projected and retracted in the storage space in the storage space.

  However, since the shoes of Patent Document 2 and Patent Document 3 are built in the recess of the shoe sole that opens downward, the size, number, and position of the nails and spikes are restricted, and the recess is covered with snow during use. It is unsuitable for mountain trails because it is buried and cannot be stored in the original.

JP 2006-334333 A Utility Model Registration No. 3002717 Utility Model Registration No. 3080055 Specification

  The present invention has been made in view of such conventional problems, and can be attached to and detached from a shoe, and the nail protrudes from the shoe sole when in use, while the nail projects from the shoe sole when not in use. It is an object to provide a cramp that can be retreated.

As means for solving the above problems, the crampons according to the present invention are:
(1) a fixing portion that is applied to the arch portion of the shoe sole and is attachable to and detachable from the shoe by a fixing device;
A movable part rotatably attached to the fixed part and having a plurality of claws;
The movable part is capable of rotating between a use position where the nail is located below the shoe sole and a non-use position where the nail is located above the shoe sole and outside the shoe.

  In the present invention, the crampon can be attached to the shoe in advance by placing the fixing portion against the arch of the shoe. When the movable part is rotated to the use position at the time of use, the nail is located below the sole, so that it is possible to walk safely without sliding on a snowy road. When the movable part is rotated to the non-use position when not in use, the nail is located above the shoe sole and outside the shoe, so that it is possible to walk on a snow-free road without removing the crampons from the shoe.

(2) The fixed portion has a shaft portion extending in the width direction of the shoe at both side ends,
The movable part has a U-shape that surrounds the outside of the front part from the arch part of the shoe sole, and is rotatably attached to the shaft part.
The movable part further includes a support part that supports a shoe sole when in the use position, and a fastener that fastens the movable part to the shoe.

(3) In the movable portion, the claw is positioned below the toe portion from the arch portion of the shoe at the use position, and the nail is located above the shoe sole and from the arch portion of the shoe to the toe portion at the non-use position. Located above.

(4) It is preferable that the shaft portion is inserted through a long hole formed in the movable portion and extending in the toe direction. Thereby, the position of a movable part can be adjusted according to the length of shoes.

(5) It is preferable to provide a spring for urging the movable part to the non-use position.

(6) The fixed portion has a shaft portion extending in the width direction of the shoe at the center portion,
The movable part has a shape that supports the front part from the arch part of the shoe sole, and is rotatably attached to the shaft part via a connecting part,
The movable part further includes a fastener for fastening the movable part to a shoe.

(7) Preferably, in the use position, the claw is located below the toe portion of the shoe from the arch portion of the shoe, and the claw is located above the heel portion of the shoe sole in the non-use position.

(8) It is preferable that the shaft portion is inserted through a long hole formed in the fixed portion and extending in the toe direction. Thereby, the position of a movable part can be adjusted according to the length of shoes.

  According to the present invention, the fixed part is applied to the arch of the shoe in advance and the crampon is attached to the shoe, the movable part is rotated to the use position when in use, and the movable part is rotated to the non-use position when not in use. Since it is not necessary to store and take out the crampons from the sack during climbing, it is possible to avoid congestion and congestion on the trail.

The side view (a) which shows the use condition of the crampon of 1st Embodiment of this invention, and the side view (b) which shows a non-use state. The rear view of the crampon of FIG. The bottom view of the crampon of FIG. The IV-IV sectional view taken on the line of the crampon of FIG. The partial enlarged view of the crampon of the modification which attached the torsion spring. The side view (a) which shows the use condition of the crampon of 2nd Embodiment of this invention, The side view (b) which shows a non-use state. The bottom view (a) which shows the use condition of the crampon of FIG. 5, The bottom view (b) which shows a non-use state. The side view (a) which shows the use condition of the crampon of the modification of 1st Embodiment, and the side view (b) which shows a non-use state.

  Next, embodiments of the present invention will be described with reference to the accompanying drawings.

<First Embodiment>
FIG. 1 shows a crampon 1 according to a first embodiment of the present invention. The crampons 1 are attached to the sole 3 of a shoe 2 such as a mountain climbing shoe, and include a fixed portion 4 and a movable portion 5.

  The fixing portion 4 is formed of a rectangular metal plate that is long in the width direction of the shoe 2 applied to the arch portion 3 a of the shoe sole 3. The arch portion 3a of the shoe sole 3 refers to a recessed portion in front of the heel portion 3b. As shown in FIG. 2, projecting portions 6 projecting from the arch 3 a of the shoe sole 3 to both sides and bending upward are formed at both side ends of the fixing portion 4. The projecting portion 6 is provided with a shaft portion 7 extending in the width direction of the shoe 2. The fixing portion 4 may have a hole for weight reduction. Moreover, in order to prevent a snow dumpling from adhering to the surface of the fixed portion 4 that contacts the snow, a snow plate such as vinyl acetate or vinyl chloride may be attached.

  As shown in FIG. 2, a fixing band 8 is attached to both sides of the fixing portion 4 via a ring 8 a attached to the protruding portion 6, and the fixing band 8 is rotated around the upper portion 2 a and the ankle 2 b of the shoe 2. By fastening, the fixing portion 4 can be fixed to the arch portion 3a of the shoe 2 and can be removed. The band of the fixing band 8 can be a rubber band or a tape band, and the fastening portion can be a hook, a buckle or the like.

  As shown in FIG. 3, the movable portion 5 is formed by bending a metal band plate into a U shape so as to surround the outside of the front portion from the arch portion 3 a of the shoe sole 3. In FIG. 3, the distal end side from the intermediate portion of the movable portion 5 is bent in a trapezoidal shape, but it may be formed so as to be entirely curved along the toe portion 2 c of the shoe 2. As shown in FIG. 1, a long hole 9 extending in the toe direction is formed at both ends of the movable portion 5, and the shaft portion 7 of the fixed portion 4 is inserted into the long hole 9 so as to be rotatable. Yes. Six nails 10 are formed on the lower edge of the movable portion 5 so as to pierce the snow surface. As shown in FIG. 1 (a), the movable portion 5 includes a use position where the nail 10 is located below the shoe sole 3, and a nail 10 above the shoe sole 3 and the shoe 2 as shown in FIG. 1 (b). It can be rotated to a non-use position located outside.

  As shown in FIGS. 3 and 4, a through hole 11 that penetrates in the width direction of the shoe 2 is formed between the distal end portion of the movable portion 5 and the shaft portion 7, and the support bar 12 is inserted into the through hole 11. Has been. The support bar 12 is made of a metal plate that is long in the width direction of the shoe 2, has a bent piece 13 at one end, and has an engagement hole 14 at the other end. A fastening band 15 is attached to the bent piece 13 at one end of the support bar 12. The fastening band 15 is made of rubber that can be expanded and contracted, and has a hook 16 that engages with an engagement hole 14 at the other end of the support bar 12 at the tip. The support bar 12 is positioned above the base of the nail 12 so that the shoe sole 3 can be supported when the movable part 5 is in the use position.

  In order to use the crampons 1 having the above configuration, first, as shown in FIG. 1A, the movable part 5 is placed in front of the fixed part 4, and the arch part 3a of the shoe sole 3 is placed in the movable part 5. Put the front part on the support bar 12, place the arch 3a of the shoe sole 3 on the fixing part 4, and turn the fixing bands 8 on both sides of the fixing part 4 from the upper part 2a of the shoe 2 to the ankle part 2b. Fasten with a fastener (not shown). The position of the fixed part 4 is adjusted to a position where the movable part 5 can be turned up and down without hitting the shoe 2. Since the long holes 9 are formed at both ends of the movable portion 5, the movable portion 5 can be adjusted in the length direction of the shoe 2 according to the size of the shoe 2. Next, the fastening band 15 of the support bar 12 is turned around the upper part 2 a of the shoe 2, and the hook 16 is engaged with the engagement hole 14 of the support bar 12 and fixed. Thereby, the movable part 4 becomes a use position shown to Fig.1 (a). In this use position, the nail 10 of the movable part 5 is located below the arch part 2a of the shoe 2 and below the toe part 2c, and can safely walk without slipping on the snow surface.

  When the snow disappears and it is not necessary to use the crampons 1, the hook 16 of the fastening band 15 is removed from the engagement hole 14 of the support bar 12 as shown in FIG. Pull out from 11. Subsequently, as shown in FIG. 1 (b), the movable part 5 is lifted above the upper part 2 a of the shoe 1, and in this state, the support bar 12 is inserted into the through hole 11 of the movable part 5, The hook 16 is engaged with the engagement hole 14 of the support bar 12. Thereby, the movable part 5 becomes an unused position shown in FIG. In this non-use position, the nail 10 of the movable part 5 is located above the shoe sole 3 and above the arch part 3a of the shoe 2 above the toe part 2c, so that the nail 10 does not pierce the ground even when walking. I can walk.

  To return to the use position, the support bar 12 is pulled out from the through-hole 11 of the movable part 5, the movable part 5 is lowered, the toe part 2 c of the shoe 2 is raised, and a gap is formed between the movable part 5 and the shoe sole 3. In the opened state, the support bar 12 is inserted into the through hole 11 of the movable part 5, the fastening band 15 of the support bar 12 is turned around the upper part 2 a of the shoe 2, and the hook 16 is engaged with the engagement hole 14 of the support bar 12. Fix together. Thereby, the movable part 5 returns to the use position shown to Fig.1 (a), and can walk safely, without slipping on a snow surface again.

  In this way, the crampon 1 can be rotated between the use position and the non-use position without removing the crampon 1 from the shoe 2, so that the crampons of the crampon 1 are not only attached to and detached from the zack during climbing. There is no need for storage or removal.

  The crampons 1 of the first embodiment can include a torsion spring 17 that biases the movable part 5 from the use position to the non-use position. Specifically, as shown in FIG. 5, a torsion spring 17 is attached to the shaft portion 7 of the fixed portion 4, and one end of the torsion spring 17 is locked to the protruding portion 6 of the fixed portion 4. The other end is locked to the movable portion 5, and the torsion spring 17 stops at the non-use position shown in FIG. 1 (b) without being effective, and from the non-use position of FIG. 1 (b) to FIG. 1 (a). When the movable part 5 is moved to the use position shown in FIG. 2, the spring force of the torsion spring 17 is effective. To move the movable part 5 to the use position, the movable part 5 is pushed down against the spring force of the torsion spring 17 and the support bar 12 is inserted into the through hole 11 of the movable part 5. As a result, the support bar 12 is pressed against the shoe sole 3 by the biasing force of the torsion spring 17. When the support bar 12 is pulled out from the through hole 11 of the movable part 5 in order to place the movable part 5 in the non-use position, the movable part 5 is automatically moved to the use position by the biasing force of the torsion spring 17.

Second Embodiment
FIG. 6 shows a crampon 21 according to the second embodiment of the present invention. The crampons 21 are attached to the sole 3 of a shoe 2 such as a mountain climbing shoe, and include a fixed portion 22 and a movable portion 23.

  The fixing portion 22 is formed of a rectangular metal plate that is long in the width direction of the shoe 2 applied to the arch portion 3 a of the shoe sole 3. At both ends of the fixing portion 22, protruding portions 24 that protrude from the arch portion 3 a of the shoe sole 3 to both sides and bend downward are formed. A long hole 25 extending in the length direction of the shoe 2 is formed in the protruding portion 24, and a shaft portion 26 extending in the width direction of the shoe 2 is inserted into the long hole 24. The fixing portion 22 may have a hole for weight reduction. Further, a snow plate such as vinyl acetate or vinyl chloride may be attached to prevent the snow dumpling from adhering to the surface of the fixed portion 22 that contacts the snow.

  Rings 27a are attached to the upper surfaces of both sides of the fixing part 22, and a fixing band 27 is attached to the ring 27a. The fixing band 27 is fixed by turning around the upper part 2a and the ankle part 2b of the shoe. The portion 22 can be fixed to the arch portion 3a of the shoe 2 and can be removed. A rubber band or a tape band can be used as the band of the fixing band 27, and a hook, a buckle or the like can be used as the fastening portion.

  As shown in FIG. 7A, the movable portion 23 is formed of a metal frame so as to support the front portion from the arch portion 3a of the shoe sole 3. The movable portion 23 includes a U-shaped portion 23a and a straight portion 23b that connects both ends of the U-shaped portion 23a. The width of the U-shaped portion 23a is larger than the width of the heel portion 3b of the shoe sole 3 and is U-shaped. The length from the tip of the portion 23a to the straight portion 23b is the same as the length from the rear surface of the heel portion 3b of the shoe sole 3 to the arch portion 3a. That is, the movable portion 23 is formed in such a size that the flange portion 3b is accommodated in the U-shaped portion 23a when the movable portion 23 is inverted to the flange portion 3b when not in use. In FIG. 7A, the U-shaped portion 23 a is bent in a trapezoidal shape, but may be formed so as to be entirely curved along the heel portion 3 b of the shoe sole 3. The linear portion 23 b of the movable portion 23 is rotatably attached to the shaft portion 26 of the fixed portion 22 via a connecting portion 28. The connecting portion 23 is formed of a flexible resin, one end is attached to the linear portion 23 b of the movable portion 23, the other end is provided with a shaft hole 29, and the shaft portion 26 of the fixed portion 22 is provided in the shaft hole 29. Is inserted. The connecting portion 23 is not limited to a resin having flexibility, and connects the fixed portion 22 and the movable portion 23 so that the fixed portion 22 and the movable portion 23 can move relatively at least in the vertical direction and the front-rear direction. Anything can be used, for example, a chain.

  Six claws 30 are formed on the lower edge of the U-shaped portion 23a of the movable portion 23 so as to pierce the snow surface. A ring 31a is attached to the U-shaped portion 23a of the movable portion 23, and a fastening band 31 is attached to the ring 31a. As shown in FIG. 6 (a), the movable part 23 has a use position where the claw 23 is located below the shoe sole 3, and a claw 30 is located above the heel part 3b of the shoe sole 3 as shown in FIG. 6 (b). It can be rotated to a non-use position located in the position.

  In order to use the crampons 21 having the above configuration, first, as shown in FIGS. 6 (a) and 7 (a), the movable part 23 is placed in front of the fixed part 22, and the shoe sole is placed on the movable part 23. 3. Place the arch part 3a in front of the arch part 3a, place the arch part 3a of the shoe sole 3 on the fixing part 22, and turn the fixing bands 27 on both sides of the fixing part 22 from the upper part 2a of the shoe 2 to the ankle part 2b. Fasten with a fastener (not shown). Next, the movable part 23 is fixed to the upper part 2 a of the shoe 2 by the fastening band 31 of the movable part 23. Thereby, the movable part 23 becomes a use position shown to Fig.6 (a). In this use position, the nail | claw 30 of the movable part 23 is located under the toe part from the arch part 3a of the shoe sole 3, and can walk safely, without slipping on a snow surface.

  When the snow disappears and it is not necessary to use the crampons 21, as shown in FIGS. 6B and 7B, the fastening band 31 is removed and the movable portion 23 is moved to the heel portion 3b side of the shoe sole 3. The U-shaped portion 23a of the movable portion 23 is positioned outside the heel portion 3b, and the movable portion 23 is fixed to the upper portion 2a of the shoe 2 by the fastening band 31 of the movable portion 23. Thereby, the movable part 23 becomes an unused position shown in FIG. In this non-use position, the nail 30 of the movable part 23 is located above the shoe sole 3 and above the heel part 3b of the shoe sole 3, so that the nail 30 does not pierce the ground even when walking. it can.

  In order to return to the use position, the fastening band 31 of the movable part 23 is removed, the movable part 23 is reversed to the toe side, and is fixed to the upper part 2 a of the shoe 2 by the fastening band 31. Thereby, the movable part 23 returns to the use position shown to Fig.6 (a), and can walk safely, without slipping on a snow surface again.

  Thus, since the crampons 21 can be rotated between the use position and the non-use positions without removing the crampons 21, not only the crampons 21 can be attached and detached during mountain climbing, but also the crampons 21 can be stored in and taken out of the zack. No action is required.

  The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the invention described in the claims. For example, the form and attachment position of the fixing band and the fastening band can be changed as appropriate.

  Further, as a modification of the crampons of the first embodiment, as shown in FIG. 8, the movable hole 5 can be moved in the front-rear direction by elongating the long hole 9 of the movable part 5, and the support bar 12 can be moved to the movable part. When the movable part 5 is brought into the non-use position by being formed integrally with the movable part 5, the movable part 5 is moved forward as shown by a two-dot chain line in FIG. 8A, and the support bar 12 is connected to the toe part 2c. After passing through the front, as shown in FIG. 8B, the movable part 5 may be rotated upward and moved backward. Further, instead of making the long hole 9 of the movable part 5 longer, the middle part of the movable part 5 may be nested so that the movable part 5 can be expanded and contracted in the front-rear direction.

DESCRIPTION OF SYMBOLS 1 ... Eisen 2 ... Shoe 2a ... Back part 2b ... Ankle part 2c ... Toe part 3 ... Shoe sole 3a ... Arch part 3b ... Abutment part 4 ... Fixed part 5 ... Movable part 6 ... Projection part 7 ... Shaft part 8 ... Fixed band (Fixture)
8a ... Ring 9 ... Long hole 10 ... Claw 11 ... Through-hole 12 ... Support bar (support part)
13 ... Bending piece 14 ... Engagement hole 15 ... Fastening band (fastening tool)
DESCRIPTION OF SYMBOLS 16 ... Hook 17 ... Torsion spring 21 ... Eisen 22 ... Fixed part 23 ... Movable part 24 ... Protruding part 25 ... Long hole 26 ... Shaft part 27 ... Fixed band (fixing tool)
27a ... Ring 28 ... Connecting part 29 ... Shaft hole 30 ... Claw 31 ... Fastening band (fastening tool)

Claims (5)

A fixing part that is applied to the arch part of the shoe sole and is attachable to and detachable from the shoe by a fixing tool;
A movable part rotatably attached to the fixed part and having a plurality of claws;
The movable part is capable of rotating between a use position where the nail is located below the shoe sole and a non-use position where the nail is located above the shoe sole and outside the shoe. . The fixed portion has shaft portions at both ends,
The movable part has a U-shape that surrounds the outside of the front part from the arch part of the shoe sole, and is rotatably attached to the shaft part.
The crampon according to claim 1, wherein the movable part further includes a support part that supports a shoe sole when in the use position, and a fastener that fastens the movable part to the shoe.   In the use position, the movable part has the nail located below the toe part from the arch part of the shoe, and the nail is located above the shoe sole and above the toe part from the shoe arch part in the non-use position. The crampon according to claim 2, wherein: The fixed part has a shaft part extending in the width direction of the shoe at the center part,
The movable part has a shape that supports the front part from the arch part of the shoe sole, and is rotatably attached to the shaft part via a connecting part,
The crampon according to claim 1, wherein the movable part further includes a fastener for fastening the movable part to a shoe. The movable part is characterized in that the claw is located below the toe part from the arch part of the shoe at the use position, and the claw is located above the heel part of the shoe sole at the non-use position. 4. Aizen according to 4.

Images