BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a shoe sole structure of a cycling shoe, and more particularly to a shoe sole structure of a cycling shoe for bicycles that may enable a user's foot to completely fit with the shoe sole structure of the cycling shoe, may reduce the friction between the user's foot and the shoe sole structure to enhance the force transferring effect of the user's foot, and may provide a ventilation effect for the user when wears the cycling shoe for cycling.
2. Description of Related Art
Conventional shoes have different kinds and uses such as running shoes, basketball shoes, leather shoes or cycling shoes. A conventional running shoe is disclosed in U.S. Pat. No. 4,689,898. The conventional running shoe has a sole, a shoe surface, and an insole. The sole is made of soft materials and may deform when a user wears the conventional running shoe to run. The shoe surface is connected to the sole to form a receiving space for the user's foot. The insole is mounted in the receiving space between the sole and the shoe surface, is deposited on a top side of the sole, and may have multiple arch supports formed on a top surface of the insole to abut a bottom surface of the user's foot. Although the arch supports of the insole may enable the top surface of the insole to abut with the bottom surface of the user's foot. However, the materials of the sole and the insole of the conventional running shoe are soft, and the sole and the insole may be deformed when the user wears the conventional running shoe to run. Since the sole and the insole are deformed when the user is ran, and the arch supports cannot completely abut with the bottom surface of the user's foot, and tis may increase the friction between the insole and the user's foot. Then, the force transferring effect of the user's foot is limited and cannot fully transfer to the conventional running shoe. Therefore, the conventional running shoe cannot be used on a bicycle for racing since the conventional running shoe may be deformed and may be slid from a pedal of the bicycle, and the conventional running shoe didn't have any engagements to engage with the pedal of the bicycle.
Furthermore, with reference to FIG. 17, a conventional cycling shoe 70 has a sole 71 and an insole 72 deposited in the conventional cycling shoe 70, and the insole 72 has a heel area 721, an arch area 722, and a metatarsus area 723, that are connected with each other sequentially. In use, with reference to FIG. 18, when a user rides a bicycle by the conventional cycling shoe 70, the heel, the arch, and the metatarsus of the user's foot are respectively corresponding to and abut on the heel area 721, the arch area 722, and the metatarsus area 723 of the insole 72 of the conventional cycling shoe 70. When the user wants to increase the speed of the bicycle, the metatarsus area 723 and a location between the metatarsus and the toes of the user's foot are forced on the conventional cycling shoe 70 to transfer force to the bicycle via the conventional cycling shoe 70.
However, the location between the metatarsus and the toes of the user's foot isn't completely touch or press on the insole 72 and a space is formed between the location and the insole 72 of the conventional cycling shoe 70. When the user wants to speed the bicycle with pressing the location on the insole 72, the location between the metatarsus and the toes of the user's foot may slid relative to the insole 72 and increase the friction between the user's foot and the insole 72. Then, the force of the user's foot cannot be fully transfer to the bicycle via the conventional cycling shoe 70, and this will influence the efficiency and performance of the user.
In addition, the ventilation effect of the conventional shoe is limited, and is only provided by forming holes through the shoe surface of the conventional shoe rather than having any ventilation structures deposited on the sole of the conventional cycling shoe. For example, when the user wears a conventional cycling shoe 70 to ride a bicycle, the exercise of the user is high and the use's foot may produce more sweat to accumulate moisture in the sole 71 and the insole 72 without discharging from the sole 71, and the user may feel uncomfortable when wearing the conventional cycling shoe 70 to ride the bicycle. The shoe sole structure of a cycling shoe for bicycles in accordance with the present invention mitigates or obviates the aforementioned problems.
SUMMARY OF THE INVENTION
The main objective of the present invention is to provide a shoe sole structure of a cycling shoe for bicycles that may enable a user's foot to completely fit with the shoe sole structure of the cycling shoe, may reduce the friction between the user's foot and the shoe sole structure to enhance the force transferring effect of the user's foot, and may provide a ventilation effect for the user when wears the cycling shoe for cycling.
The shoe sole structure of a cycling shoe for bicycles has a sole and an insole. The sole is made of rigid materials without deforming, and has a curvature, at least one engaging hole, and at least one ventilating hole. The insole is made of soft materials, abuts against a top surface of the sole, and has a curvature, a heel portion, an arch portion, a metatarsus portion, and a toe portion. The curvatures of the sole and the insole are corresponding to a curvature of a bottom surface of a user's foot. When the insole is deposited in the cycling shoe and abuts the sole, and the user's foot wears the cycling shoe and the weight of the user's foot is applied on the insole and the sole of the cycling sole, since the material of the insole is softer than the material of the sole to enable the insole to deform, and the weight of the user's foot is pressed on the insole, and the insole completely abuts the user's foot and the sole without forming any interspaces between the user's foot and the sole.
Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of a first embodiment of a shoe sole structure of a cycling shoe in accordance with the present invention, deposited in the cycling shoe;
FIG. 2 is an exploded perspective view of the cycling shoe in FIG. 1;
FIG. 3 is an enlarged perspective view of a sole of the shoe sloe structure in FIG. 1;
FIG. 4 is an enlarged bottom view of an insole of the shoe sloe structure in FIG. 1;
FIG. 5 is an enlarged bottom view of the shoe sole structure in FIG. 1;
FIG. 6 is an operational and cross sectional front side view in partial section of the shoe sole structure of the cycling shoe along a line A-A in FIG. 5, a user's foot wears in the cycling shoe;
FIG. 7 is an operational and cross sectional front side view in partial section of the shoe sole structure of the cycling shoe along a line B-B in FIG. 5, a user's foot wears in the cycling shoe;
FIG. 8 is an operational and cross sectional front side view in partial section of the shoe sole structure of the cycling shoe along a line C-C in FIG. 5, a user's foot wears in the cycling shoe;
FIG. 9 is an operational perspective side view of the shoe sole structure of the cycling shoe, setting a user's foot on a pedal of the bicycle by the cycling shoe;
FIG. 10 is an exploded perspective view of a second embodiment of a shoe sole structure of a cycling shoe for bicycles in accordance with the present invention;
FIG. 11 is an enlarged cross sectional side view of the shoe sole structure in FIG. 10;
FIG. 12 is an enlarged perspective view of a switch sheet of the shoe sloe structure of the cycling shoe in FIG. 10;
FIG. 13 is another enlarged cross sectional side view of the shoe sole structure in FIG. 10;
FIG. 14 is an operational perspective view of the switch sheet of the shoe sole structure of the cycling shoe in FIG. 12;
FIG. 15 is an operational and enlarged cross sectional side view of the shoe sole structure in FIG. 14;
FIG. 16 is another operational and enlarged cross sectional side view of the shoe sole structure in FIG. 14;
FIG. 17 is an exploded perspective view of a cycling shoe for bicycles in accordance with the prior art; and
FIG. 18 is an operational and cross sectional side view in partial section of the cycling shoe in FIG. 17, a user's foot wears in the cycling shoe.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
With reference to FIGS. 1 to 4, a first embodiment of a shoe sole structure of a cycling shoe 50 in accordance with the present invention for bicycles comprises a sole 10 and an insole 20.
With reference to FIGS. 2 and 3, the sole 10 is made of rigid materials such as carbon fiber without deforming, and has a top surface, a bottom surface, a toe end, a heel end, a curvature, at least one engaging hole 11, and at least one ventilating hole 12. The curvature of the sole 10 is formed on the sole 10 from the heel end to the toe end of the sole 10 between the bottom surface and the top surface of the sole and is corresponding to a curvature of a bottom surface of a user's foot. In addition, since the curvature of the sole 10 is corresponding to the curvature of the bottom surface of the user's foot, and the curvature of the sole 10 is undulating. The at least one engaging hole 11 is formed through the bottom surface and the top surface of the sole 10 adjacent to the toe end of the sole 10 to engage a protrusion of a pedal of a bicycle. Then, the sole 10 can be surely deposited on the pedal by the engagement between the at least one engaging hole 11 and the protrusion of the pedal. The at least one ventilating hole 12 is formed through the bottom surface and the top surface of the sole 10 adjacent to the heel end of the sole 10 to provide a ventilating effect.
With reference to FIGS. 2 and 4, the insole 20 is made of soft materials such as foam, abuts against the top surface of the sole 10, and has a heel end, a toe end, a curvature, a heel portion 21, an arch portion 22, a metatarsus portion 23, a toe portion 24, and a strengthening portion 25. The curvature of the insole 20 is formed on the insole 20 from the heel end to the toe end of the insole 20 and is corresponding to the curvature of the bottom surface of the user's foot. Then, the user's foot may fully abuts with the sole 10 via the insole 20. The heel portion 21 is deposited on the insole 20 at the heel end of the insole 20. The arch portion 22 is formed with the heel portion 21. The metatarsus portion 23 is formed with the arch portion 22 and is opposite to the heel portion 21. The toe portion 24 is deposited on the toe end of the insole 20 and is formed with the metatarsus portion 23. Additionally, the curvature of the insole 20 is formed between the heel portion 21, the arch portion 22, the metatarsus portion 23, and the toe portion 24. The strengthening portion 25 is deposited on a bottom surface of the insole 20, abuts the top surface of the sloe 10, and has a rigid strength between that of the insole 20 and the sloe 10.
With reference to FIGS. 5 to 8, when the insole 20 is deposited in the cycling shoe 50 and abuts the sole 10, and the user's foot wears the cycling shoe and the weight of the user's foot is applied on the insole 20 and the sole 10 of the cycling sole 50. Since the material of the insole 20 is softer than the material of the sole 10 to enable the insole 20 to deform, and the weight of the user's foot is pressed on the insole 20. Then, the insole 20 completely abuts the user's foot and the sole 10 without forming any interspaces between the user's foot and the sole 10. Therefore, with reference to FIG. 9, when the user wants to speed a bicycle 60 at a started stage by treading a pedal 61 of the bicycle 60 via the cycling shoe 50, a location between the metatarsus and the toes of the user's foot completely abut with the insole 20 and may not slide relative to the sole 10 and the insole 20, and this will not increase frictions between the user's foot and the insole 20. In addition, the sole 10 will not be deformed during the user treading the pedal 61, and this enable the user to tread the pedal 61 by a parallel treading mode. Then, the force of the user's foot can be fully transfer to the bicycle 60 via the cycling shoe 50 of the present invention, and this will enhance the explosive force and the efficiency and performance of the user.
With reference to FIG. 10, a second embodiment of a she sole structure of a cycling shoe in accordance with the present invention is substantially the same as the first embodiment except for the following features. The sole 10A further has a mounting recess 13A, an engaging segment 14A, and a switch sheet 15A. The mounting recess 13A is elongated, is formed in the top surface of the sole 10A adjacent to the heel end of the sole 10A and has two opposite inner sidewalls. Furthermore, the sole 10A has two ventilating holes 12A formed through the top surface and the bottom surface of the sole 10A at a spaced interval and communicate with the mounting recess 13A. The engaging segment 14A is deposited in the mounting recess 13A adjacent to the heel end of the sole 10A. Preferably, the engaging segment 14A has multiple teeth formed on the opposite inner sidewalls of the mounting recess 13A adjacent to the heel end of the sole 10A.
With reference to FIGS. 10, 12, and 13, the switch sheet 15A is slidably mounted in the mounting recess 13A, engages with the engaging segment 14A, and has a rear end, a front end, a bottom side, a switching hole 151A, two elastic arms 152A, a positioning segment 153A, and a shifting block 154A. The rear end of the switch sheet 15A extends to the engaging segment 14A. The switching hole 151A is formed through the switch sheet 15A between the rear end and the front end of the switch sheet 15A and selectively communicates with one of the ventilating holes 12A. The elastic arms 152A are formed on and protrude from the rear end of the switch sheet 15A at a spaced interval and respectively face the opposite inner sidewalls of the mounting recess 13A. The positioning segment 153A is formed on the elastic arms 152A and engages the teeth of the engaging segment 14A. The shifting block 154A is downwardly formed on and protrudes from the bottom side of the switch sheet 15A adjacent to the switching hole 151A, and extends out of the bottom surface of the sole 10A via one of the ventilating holes 12A.
Additionally, with reference to FIG. 10, the shoe sole structure of the second embodiment in the present invention further has a middle sole 30A deposited on the sole 10A to cover the mounting recess 13A and the switch sheet 15A, being made of soft materials and having two communicating holes 31A and two filtering nets 32A. The communicating holes 31A are formed through the middle sole 30A and respectively align with the ventilating holes 12A of the sole 10A. The filtering nets 32A are respectively formed in the communicating holes 31 A to prevent crushed stone or sand from moving into the shoe sole structure via the ventilating holes 12A and the switching holes 151A.
With reference to FIGS. 10 and 11, the insole 20A is deposited on the middle sole 30A and has multiple air holes 26A formed through the insole 20A at spaced intervals, and part of the air holes 26A communicate with the communicating holes 31A of the middle sole 30A.
In use, with reference to FIGS. 12 and 14, the user may enable the switch sheet 15A to move relative to the mounting recesses 13A by pushing the shifting block 154A to change the position of the switching hole 151A relative to the ventilating holes 12A of the sole 10A by the engagement between the engaging segment 14A and the positioning segment 153A. Then, different amounts of air flowing into the shoe sole structure can be adjusted by changing the position of the switching hole 151A relative to the ventilating holes 12A. When the user wears the cycling shoe 50 to ride the bicycle 60 and produces more sweat to accumulate moisture in the sole 10A, and the moisture may discharging from the sole 10A via the ventilating holes 12A, the switching hole 151A, and the air holes 26A, and the user may feel comfortable when wearing the cycling shoe 50 to ride the bicycle 60.
Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and features of the utility model, the disclosure is illustrative only. Changes may be made in the details, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Patent Application
20160366973
