阅读说明：本技术 鞋 (Shoes with removable sole ) 是由 青木寿明 大内薫 于 2021-04-20 设计创作，主要内容包括：本发明提供一种鞋。鞋(10)具有：鞋底(12)；鞋面(14),其被安装在鞋底(12)上；和束带(16),其沿鞋(10)的宽度方向延伸。束带(16)具有：近位端(16a),其被固定于鞋面(14)；和远位端(16b),其相对于近位端(16a)位于鞋(10)的宽度方向上的相反侧。鞋面(14)和束带(16)中的一方具有至少一个第一卡合部(20),鞋面(14)和束带(16)中的另一方具有至少一个第二卡合部(30),该至少一个第二卡合部(30)在远位端(16b)被保持于鞋面(14)时与至少一个第一卡合部(20)卡合,且沿与鞋(10)的长度方向交叉的方向延伸。据此,当束带的自由端被保持于鞋面时不易产生束带相对于鞋面的错位。(The invention provides a shoe. A shoe (10) is provided with: a sole (12); an upper (14) mounted on the sole (12); and a strap (16) extending in the width direction of the shoe (10). The belt (16) comprises: a proximal end (16a) fixed to the upper (14); and a distal end (16b) located on the opposite side of the proximal end (16a) in the width direction of the shoe (10). One of the shoe upper (14) and the strap (16) has at least one first engaging portion (20), and the other of the shoe upper (14) and the strap (16) has at least one second engaging portion (30), the at least one second engaging portion (30) engaging with the at least one first engaging portion (20) when the distal end (16b) is held by the shoe upper (14), and extending in a direction intersecting the longitudinal direction of the shoe (10). Accordingly, the displacement of the strap relative to the shoe upper is not easily generated when the free end of the strap is held to the shoe upper.)

1. A shoe for wearing on a foot,

it is characterized in that the preparation method is characterized in that,

comprises a sole, a vamp and a strap, wherein,

the upper is mounted on the sole;

the strap extends in a width direction of the shoe and includes a proximal end fixed to the upper and a distal end located on an opposite side of the width direction of the shoe relative to the proximal end,

one of the shoe upper and the strap includes at least one first engaging portion,

the other of the upper and the strap includes at least one second engaging portion that engages with the at least one first engaging portion when the distal end is held by the upper, and extends in a direction intersecting the longitudinal direction of the shoe.

2. The shoe of claim 1,

the at least one first clamping part comprises at least one first convex part,

the at least one second engaging portion includes a plurality of second protrusions arranged in a longitudinal direction of the shoe,

the at least one first projection is captured between adjacent second projections when the distal end is retained on the upper.

3. The shoe of claim 1,

the at least one first clamping part comprises at least one first convex part,

the at least one second engaging portion includes at least one groove portion,

the at least one first protrusion engages the at least one groove when the distal end is retained on the upper.

4. Shoe according to any of claims 1 to 3,

the at least one first engaging portion extends in a direction intersecting with a longitudinal direction of the shoe when the distal end is held by the shoe upper.

5. According to claimThe shoe of any one of the above claims,

a tightening structure is also provided that applies tension to the strap.

6. The shoe of claim 5,

said at least one second engagement means being provided on said upper,

the tightening structure applies the tension along the at least one second engagement portion to the strap.

7. The shoe according to claim 5 or 6,

the lacing structure comprises a cord member and a winding member, wherein,

the cord member is attached to either one of the upper and the strap;

the winding member is attached to the other of the upper and the strap, and winds the string member.

8. According to claimThe shoe of any one of the above claims,

one of the at least one first engaging portion and the at least one second engaging portion is made of a mesh fabric material.

9. The shoe of claim 8,

the one of the at least one first engaging portion and the at least one second engaging portion is provided on the belt.

Technical Field

The present invention relates to a shoe for wearing on a foot.

Background

Patent document 1 discloses a shoe having a strap (strap) for fixing a foot in the shoe. The strap extends in the width direction of the shoe, one end in the width direction of the strap is fixed to the upper (upper) and the other end in the width direction (free end) is held to the upper by hook and loop fasteners.

[ Prior art documents ]

[ patent document ]

Patent document 1: japanese Utility model patent laid-open No. 3210703

Disclosure of Invention

[ problem to be solved by the invention ]

In the prior art shoes, there is a fear that the position of the strap is misaligned in the lengthwise direction of the shoe with respect to the shoe upper when the free end of the strap is held to the shoe upper. When the position of the strap is displaced in the longitudinal direction of the shoe relative to the upper, a tightening force necessary to fix the foot in the shoe may not be obtained. In addition, sometimes the proper position of the shoe cannot be tightened to secure the foot within the shoe.

The invention aims to provide a shoe with a lace which is not easy to be displaced relative to a vamp when the free end of the lace is held on the vamp.

[ solution for solving problems ]

A shoe according to claim 1 of the present invention is a shoe to be worn on a foot, including a sole, an upper, and a strap, wherein the upper is attached to the sole; the straps extend in the width direction of the shoe. The strap has a proximal end fixed to the upper and a distal end located on the opposite side of the proximal end in the width direction of the shoe. One of the vamp and the strap has at least one first engaging portion. The other of the shoe upper and the strap has at least one second engaging portion that engages with the at least one first engaging portion when the distal end is held by the shoe upper, and that extends in a direction that intersects the longitudinal direction of the shoe.

In the shoe according to claim 1, the at least one second engaging portion engages with the at least one first engaging portion when the distal end of the strap is held by the upper. Accordingly, when the distal end of the band is held by the upper, the band is less likely to be displaced relative to the upper. Here, the distal end is the free end of the band.

A shoe according to claim 2 is related to claim 1, wherein the at least one first engaging portion includes at least one first projection. At least one of the second engaging portions includes a plurality of second protrusions arranged in a longitudinal direction of the shoe. At least one first projection is engaged between adjacent second projections when the distal end is retained on the upper. In the shoe according to claim 2, the displacement of the strap relative to the upper when the distal end is held by the upper can be suppressed with a simple structure. In addition, when the at least one first engaging portion is engaged with the at least one second engaging portion, the at least one first engaging portion can be guided by the adjacent second convex portion.

A shoe according to claim 3 is related to claim 1, wherein the at least one first engaging portion includes at least one first projection. The at least one second engaging portion includes at least one groove portion. The at least one first protrusion engages the at least one slot when the distal end is retained on the upper. In the shoe according to claim 3, the displacement of the strap with respect to the upper when the distal end is held by the upper can be suppressed with a simple structure. In addition, when the at least one first engaging portion is engaged with the at least one second engaging portion, the at least one first protruding portion can be guided by the at least one groove portion.

The shoe according to claim 4 is the shoe according to claim 1In any one of claim 3, the at least one first engaging portion extends in a direction intersecting with a longitudinal direction of the shoe when the distal end is held by the shoe upper. In the shoe according to claim 4, the distal end of the strap is held by the upper, and thus the strap is less likely to be displaced from the upper. In addition, the band is easily guided in the tightening direction.

The shoe according to claim 5 is the shoe according to claim 1Any one of claim 4 further comprises a tightening structure for applying tension to the strap. In the shoe according to claim 5, the shoe canTension is easily applied to the strap by the tightening structure. Further, by using the tightening structure together with the first engaging portion and the second engaging portion, the displacement of the strap with respect to the shoe upper can be further reduced when tightening the strap.

A shoe according to claim 6 is related to claim 5, wherein the at least one second engaging portion is provided on the upper. The tightening structure applies a tension to the strap along the at least one second engagement portion. In the shoe according to claim 6, when the band is tightened by the tightening structure, the band is less likely to be displaced from the shoe upper.

A shoe according to claim 7 is the shoe according to claim 5 or 6, wherein the tightening structure includes a string member and a winding member. The cord member is attached to either the upper or the strap. The winding member is attached to the other of the upper and the strap and is used for winding the rope member. In the shoe according to claim 7, the tightening of the strap and the adjustment of the tightening force of the strap are facilitated.

The shoe according to claim 8 is the shoe according to claim 1In any one of claim 7, one of the at least one first engaging portion and the at least one second engaging portion is made of a mesh fabric material. In the shoe according to claim 8, in this case, one of the at least one first engaging portion and the at least one second engaging portion is easily formed. In addition, one of the at least one first engaging portion and the at least one second engaging portion can be made air-permeable. In addition, one of the at least one first engaging portion and the at least one second engaging portion can be made lightweight.

A shoe according to claim 9 is related to claim 8, wherein one of the at least one first engaging portion and the at least one second engaging portion is provided on the strap. In the shoe according to claim 9, the flexibility of the material of the strap is more easily maintained than in the case where the strap is formed directly with one of the at least one first engaging portion and the at least one second engaging portion. In addition, the belt is easily made breathable.

[ Effect of the invention ]

According to the present invention, it is possible to provide a shoe in which the strap is less likely to be displaced with respect to the upper when the free end of the strap is held by the upper.

Drawings

Fig. 1 is a perspective view of the shoe.

Fig. 2 is a perspective view showing a state where the engagement between the shoe upper and the strap is released.

Fig. 3 is a schematic view for explaining engagement between the shoe upper and the strap.

Fig. 4 is a schematic view for explaining engagement between the shoe upper and the strap.

Fig. 5 is a V-V sectional view of fig. 4.

Fig. 6 is a schematic view for explaining engagement between the shoe upper and the strap according to another embodiment.

Fig. 7 is a view corresponding to the V-V cross section in fig. 4 according to another embodiment.

Fig. 8 is a perspective view of a shoe according to another embodiment.

Fig. 9 is a perspective view showing a state where the engagement between the shoe upper and the strap is released according to another embodiment.

Fig. 10 is a perspective view showing a state where the engagement between the shoe upper and the strap is released according to another embodiment.

Fig. 11 is a perspective view showing a state where the engagement between the shoe upper and the strap is released according to another embodiment.

Fig. 12 is a bottom view of the shoe according to the other embodiment.

[ description of reference numerals ]

10: a shoe; 12: a sole; 14: a shoe upper; 16: a belt; 16 a: a proximal end; 16 b: a distal end; 18: a tightening structure; 18 a: a rope member; 18 b: a winding member; 20: a first engaging portion; 20 a: a first convex portion; 30: a second engaging portion; 30 a: a second convex portion; 130 a: a groove part; f: and (5) a foot.

Detailed Description

Fig. 1 is a perspective view of a shoe 10 according to the present invention. As shown in FIG. 1, footwear 10 is worn on a foot F. The shoe 10 according to the present invention can be applied to shoes for sports, sports shoes (sneakers), slippers (sliders) with a lace, and the like. In this specification, a description will be given of a shoe worn on the left foot, and a description of a shoe worn on the right foot will be omitted.

Shoe 10 has a sole 12, an upper 14, and a strap 16. Preferably, footwear 10 has a lacing structure 18.

The sole 12 supports the ball of the foot. The sole 12 includes an outsole (outsole)12 a. The sole 12 includes an insole (insole) not shown. The insole is provided on the opposite side of the outsole 12a with respect to the sole 12. The outsole 12a faces the outside of the shoe 10. The outsole 12a is, for example, in contact with the ground. The insole faces the inside of the shoe 10. The insole is in contact with the ball of the foot.

The upper 14 covers the instep of the foot F. The upper 14 is mounted on the sole 12. The upper 14 is mounted on the inner bottom side of the sole 12. The upper 14 includes a left upper portion 14a and a right upper portion 14b, wherein the left upper portion 14a is located on the left side of the shoe 10; the right vamp section 14b is positioned on the right side of the shoe 10. Here, the left and right sides refer to the left and right sides when the shoe 10 is viewed from the rear (heel side) toward the toe. The upper 14 side is an upper side, and the sole 12 side is a lower side. In addition, the upper 14 includes a front vamp portion 14c and a rear vamp portion 14d, wherein the front vamp portion 14c is located on a front side of the shoe 10; the rear vamp section 14d is positioned at the rear side of the shoe 10. The front side of footwear 10 is the toe side. The rear side of the shoe 10 is the heel side. The front vamp portion 14c covers, for example, a toe portion and an instep portion of the foot. The rear vamp portion 14d covers, for example, the heel portion of the foot. The front upper portion 14c and the rear upper portion 14d connect the left upper portion 14a and the right upper portion 14b together. Upper 14 also includes an opening 14 e. The opening 14e is a portion into which the foot F is inserted when the shoe 10 is worn. The opening 14e is, for example, a welt.

The opening 14e is provided on the rear vamp portion 14d side. The opening 14e opens upward. The opening 14e is surrounded by, for example, a left vamp portion 14a, a right vamp portion 14b, a front vamp portion 14c and a rear vamp portion 14 d. The opening 14e is provided on the opposite side of the sole 12 from the upper portions 14a, 14b, 14c, 14 d. For example, in a shoe 10 that does not include the rear vamp portion 14d, the opening 14e is surrounded by the left vamp portion 14a, the right vamp portion 14b, the front vamp portion 14c and the sole 12. The shoe 10 is, for example, a sandal (sandal). In addition, for example, in the case where the shoe 10 is a shoe covering the ankle, the left upper surface portion 14a, the right upper surface portion 14b, the front upper surface portion 14c, and the rear upper surface portion 14d extend to the ankle. In the case where the shoe 10 is a shoe covering the upper portion of the ankle, the left upper surface portion 14a, the right upper surface portion 14b, the front upper surface portion 14c, and the rear upper surface portion 14d extend to the upper portion of the ankle. The shoe 10 is, for example, a boot (boots). In addition, a strap is also provided at a portion covering above the ankle. The engaging portions 20 and 30 of the present embodiment described later are also provided in a portion covering the upper portion of the ankle.

Fig. 2 is a perspective view showing a state where the engagement between upper 14 and band 16 is released. Fig. 3 and 4 are schematic views for explaining the engagement of the shoe upper 14 with the lace 16. Fig. 5 is a V-V sectional view of fig. 4.

Straps 16 extend along the width of footwear 10. Band 16 includes a proximal end 16a and a distal end 16 b. Proximal end 16a is secured to upper 14. In the present embodiment, the proximal end 16a is fixed to the right vamp portion 14 b. Distal end 16b is located on the opposite side of proximal end 16a in the width direction of footwear 10. Distal end 16b is the free end of band 16. Distal end 16b can be retained on upper 14. In this embodiment, the distal end 16b can be retained on the left vamp portion 14 a. In the present embodiment, as will be described later, the second engaging portion 30 is formed in the upper 14 itself. However, the second engaging portion 30 may be attached to the upper 14 as a separate component.

One of the vamp 14 and the strap 16 includes at least one first engaging portion 20. The other of the upper 14 and the strap 16 includes at least one second engaging portion 30. When the distal end 16b is retained on the upper 14, the at least one second engagement portion 30 engages the at least one first engagement portion 20. At least one second engaging portion 30 extends in a direction intersecting the longitudinal direction X of the shoe 10. The longitudinal direction X of the shoe 10 is a direction representing the entire length from the toe to the heel of the shoe 10. In this embodiment, the strap 16 includes at least one first engaging portion 20 and the upper 14 includes at least one second engaging portion 30.

One of the at least one first engaging portion 20 and the at least one second engaging portion 30 is preferably made of a mesh fabric material. One of the at least one first engaging portion 20 and the at least one second engaging portion 30 is provided on the strap 16. A mesh fabric is a raw material, or a part of the raw material, like a mesh, made of threads, wires, which are woven together. The mesh is made of wires or wires that are woven with each other at regular intervals. In the present embodiment, at least one first engaging portion 20 is made of a mesh fabric material. Further, at least one first engaging portion 20 may be formed integrally with the strap 16.

The at least one first engaging portion 20 includes at least one first protrusion 20 a. In the present embodiment, at least one first protrusion 20a is disposed on the inner surface 16c side of the distal end 16b of the belt 16. The interior surface 16c faces the upper 14 when the distal end 16b is retained on the upper 14. In the present embodiment, at least one first projection 20a is formed of the mesh fabric member 32. In a state where the upper 14 is engaged with the strap 16, at least one first protrusion 20a protrudes from the strap 16 in a direction toward the upper 14. The state in which the upper 14 is engaged with the belt 16 means a state in which at least one first protrusion 20a is engaged with at least one second engagement portion 30. That is, the state in which the upper 14 is engaged with the band 16 means a state in which the distal end 16b is held on the upper 14. At least one first projection 20a extends in a direction that intersects the longitudinal direction X of footwear 10 when distal end 16b is retained on upper 14. Further, it is also possible that at least one first projection 20a does not necessarily have to extend in a direction that intersects the longitudinal direction X of footwear 10 when distal end 16b is retained on upper 14. In the present embodiment, the at least one first projection 20a includes a plurality of first projections 20a that extend along a plurality of second projections 30a described later and are arranged in the longitudinal direction X of the shoe 10 when the distal end 16b is held on the upper 14.

At least one second engaging portion 30 includes a plurality of second protrusions 30a arranged along the longitudinal direction X of the shoe 10. The plurality of second protrusions 30a are formed on the surface of the left upper part 14a or the surface of the right upper part 14b, for example. In the present embodiment, a plurality of second protrusions 30a are formed on the surface of the left upper part 14 a. For example, the plurality of second protrusions 30a are formed by deforming at least a surface of the upper 14. The plurality of second protrusions 30a are formed by, for example, high-frequency stamping. In a state where the upper 14 is engaged with the strap 16, the plurality of second protrusions 30a protrude from the upper 14 in a direction toward the strap 16. The plurality of second protrusions 30a extend in a direction intersecting the longitudinal direction X of shoe 10. The second protrusions 30a extend substantially in an arc shape in the width direction of the shoe 10. The plurality of second convex portions 30a may extend linearly.

As shown in fig. 5, at least one first projection 20a is engaged between adjacent second projections 30a when the distal end 16b of the strap 16 is retained on the shoe upper 14. In fig. 5, the surface 14f is a surface of the left upper part 14 a. The second convex portion 30a protrudes with respect to the surface 14 f. Fig. 2 to 4 illustrate a structure in which at least one first engaging portion 20 includes a plurality of first protrusions 20 a. However, only a part of the plurality of first convex portions 20a is given a reference numeral 20a, and the other first convex portions 20a are omitted. Similarly, in fig. 2 to 4, only a part of the plurality of second convex portions 30a is denoted by reference numeral 30a, and the other second convex portions 30a are omitted. In fig. 2 to 5, a plurality of first protrusions 20a and a plurality of second protrusions 30a are illustrated. However, the engagement between the first convex portion 20a and the second convex portion 30a is achieved by one first convex portion 20a and two second convex portions 30 a. In this case, a concave portion for engaging the first convex portion 20a is formed between the two second convex portions 30 a. Similarly, the engagement between the first convex portion 20a and the second convex portion 30a is realized by two first convex portions 20a and one second convex portion 30 a. In this case, a concave portion for engaging the second convex portion 30a is formed between the two first convex portions 20 a.

Tightening structure 18 applies tension to belt 16. The tightening structure 18 applies a tension force to the strap 16 along the at least one second engagement portion 30. Here, at least one second engaging portion 30 is provided on the upper 14. The tightening structure 18 is a well-known structure, and includes a string member 18a and a winding member 18b for winding the string member 18 a. The string member 18a is attached to either the shoe upper 14 or the belt 16. The winding member 18b is attached to either the upper 14 or the strap 16. In the present embodiment, the string member 18a is attached to the shoe upper 14, and the winding member 18b is attached to the lace 16.

In the present embodiment, the string member 18a is attached to the left upper portion 14a at a position closer to the sole 12 than the plurality of second protrusions 30 a. The left upper surface portion 14a is provided with a hook portion 40 for hooking the cord member 18 a.

The winding member 18b includes, for example, a winding portion, a one-way clutch (not shown), and a release mechanism. The one-way clutch prohibits the winding portion from rotating in the winding release direction. The release mechanism releases the operation of the one-way clutch. Both ends of the string member 18a are attached to the winding member 18 b. When the winding member 18b is rotationally operated, the string member 18a is wound. Accordingly, the tension acting on the strap 16 is adjusted. In the present embodiment, the tightening structure 42 is provided on the front side of the tightening structure 18. The tightening structure 42 is used to tighten the left shoe upper portion 14a and the right shoe upper portion 14b in a direction to approach each other. The lacing structure 42 is the same structure as the lacing structure 18. The tightening structure 42 may be omitted.

In the shoe 10 configured as described above, when the distal end 16b of the strap 16 is held by the upper 14, the at least one second engaging portion 30 engages with the at least one first engaging portion 20. Accordingly, when distal end 16b of band 16 is held by upper 14, displacement of band 16 with respect to upper 14 is less likely to occur.

The tightening structure 18 applies a tensile force to the strap 16 along at least one of the second engaging portions 30. Accordingly, when the distal end 16b of the strap 16 is held by the shoe upper 14, the strap 16 is less likely to be displaced relative to the shoe upper 14.

When the distal end 16b of the strap 16 is held by the shoe upper 14, at least one first projection 20a is engaged between adjacent second projections 30 a. When the tightening structure 18 adjusts the tension applied to the strap 16, at least one first projection 20a is guided in the direction in which the plurality of second projections 30a extend by the adjacent second projections 30 a. Accordingly, when the tightening structure 18 adjusts the tension applied to the band 16, the band 16 is less likely to be displaced from the shoe upper 14.

In the present embodiment, the first convex portion 20a and the second convex portion 30a extend continuously. However, at least one of the first convex portion 20a and the second convex portion 30a need not extend continuously. For example, circular protrusions may be formed side by side. The continuously extending projections are guided by projections arranged at intervals. Alternatively, the convex portions arranged at intervals are guided by the convex portions extending continuously.

< other embodiment >

While one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the invention. In particular, the plurality of embodiments and modifications described in the present specification can be combined as desired.

In the illustrated embodiment, the strap 16 includes at least one first engaging portion 20 and the upper 14 includes at least one second engaging portion 30. However, as shown in fig. 6, it is also possible to: the arrangement of the at least one first engaging portion 20 and the at least one second engaging portion 30 is reversed. That is, it may be: strap 16 includes at least one second engaging portion 30 and upper 14 includes at least one first engaging portion 20.

In the embodiment, at least one second engaging portion 30 includes a plurality of second protrusions 30a aligned in the longitudinal direction X of the shoe 10. However, as shown in fig. 7, at least one second engaging portion 30 may include at least one groove portion 130 a. In fig. 7, the surface 14f is a surface of the left upper part 14 a. Groove portion 130a is recessed relative to surface 14 f. In this case, when the distal end 16b of the strap 16 is held by the shoe upper 14, the at least one first protrusion 20a engages with the at least one groove 130 a. In addition, the at least one first projection 20a need not extend continuously. For example, circular protrusions may be formed side by side. The first convex portions 20a arranged at intervals are guided by the groove portions 130a extending continuously.

In the illustrated embodiment, the cord member 18a of the tightening structure 18 is attached to the shoe upper 14, and the winding member 18b is attached to the lace 16. However, as shown in fig. 8, it is also possible to: cord section 18a is attached to lace 16 and winding section 18b is attached to upper 14.

In the illustrated embodiment, the lacing structure 18 includes a cord member 18a and a wrap member 18 b. However, as shown in fig. 9, it is also possible to: the tightening structure 18 is constituted by hook and loop fasteners 180a provided on the shoe upper 14 and the strap 16, respectively. The hook and loop fastener 180a has a planar shape and is detachable. The fastening tape 180a is obtained by, for example, specially processing a cloth. The hook and loop fastener 180a is used when the fastener (fastener) is engaged in a releasable state. A general hook and loop fastener has a hook-shaped napped side and a loop-shaped napped side. When the two parts are pressed together, the side with the hook-like pile and the side with the loop-like pile stick together.

In the embodiment, the tightening structure 18 has the wound member 18b, but the tightening structure 18 may omit the wound member 18 b. For example, as shown in FIG. 10, a cord member 18a is threaded through at least one aperture 46 provided in the distal end 16b of the drawstring 16. Then, both ends of the string member 18a are tied together in a state where the string member 18a is hooked on the hook portion 40 on the upper 14 side. Thereby, the rope member 18a can be tied. In addition, the hooking portion 40 may be omitted. In this case, for example, as shown in fig. 11, at least one hole 48 for passing the cord element 18a may be provided on the upper 14. Cord element 18a is threaded through at least one aperture 46 provided in distal end 16b of lace 16 and at least one aperture 48 provided in upper 14. Then, the string member 18a can be fastened by tying both ends of the string member 18a together. In this embodiment, the upper 14 is tied with the string member 18 a. However, the string member 18a may be tied to the side of the belt 16.

Footwear 10 may also be a bicycle shoe. In this case, for example, as shown in fig. 12, the shoe 10 may further include an attachment portion 50 for attaching a not-shown fixed wedge (clear). The fixing wedge is a plate-like member mounted on the sole of the bicycle shoe. The bicycle shoe is engaged with the pedal (pedal) of the bicycle by engaging the fixing wedge with the pedal.