Abstract:
A rear-wheel skating shoe provides an enhanced shoe stand with a single fulcrum for a wheel axle to make the structure at positions between a sidewall and a wheel axle and between a sidewall and a bottom plate of the shoe stand stronger to facilitate exposing luminous wheels and protect a user&#39;s safety effectively. The shoe includes a left shoe stand, a right shoe stand, a metal screw rod at external sidewalls of the shoe stands, a luminous wheel on the metal screw rod, a left reinforced stand in a sidewall of the left shoe stand, a right reinforced stand in a sidewall of the right shoe stand, and a reinforced plate at the bottom of the bottom plate of the shoe stand and connected to the right reinforced stand. The metal reinforced elements of the skating shoe give a strong structure, and the luminous wheels provide a color effect.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention 
         [0002]    The present invention relates to a rear-wheel skating shoe, and more particularly to a skating shoe having a single-fulcrum axle installed to the bottom of a shoe, reinforced structures installed between wheels, axles and support stands, and a protecting device installed at a coil of wheel-core electric generator of the wheels. 
         [0003]    2. Description of the Related Art 
         [0004]    Rear-wheel skating shoes are very popular worldwide and become favorable sports machinery to most people, particularly to youngsters. The use of this skating shoe is not limited by sites, and thus people can enjoy the fun of skating on a flat floor and use the shoes as a quick and convenient transportation means. People can wear the rear-wheel skating shoes for skating and shopping along a street or going outdoors for a trip. A regular skating shoe is usually tied onto the bottom of a weari    s shoe b a shoe lace, but the design of the present rear-wheel skating shoes is very complicated, and the product structure generally comes with an arc loop at an external side of a stand of a shoe body, a wheel axle fixing gear, and a slide wheel disposed in the arc loop. The production has a high cost and consumes lots of materials, particularly when if a light emitting wheel is installed at the slide wheel, and the arc loop outside the stand of the shoe body blocks ⅓ of the light, weakens the color effect of the light emitting skating shoes, and affects the external aesthetic look and the fun of the skating shoes. In addition, the light emitting wheel body of the rear-wheel skating shoe is made of plastic, so that when a user wears and skates the shoes, uneven forces are exerted on the shoes, and deformations, short circuits and falling outs may occur easily at connecting positions of a coil, a circuit board and a light emitting diode. For a worse situation, the whole coil or circuit board may even be broken, and the user no longer can use the shoes nor enjoy the fun of the skating shoes. Furthermore, the electromagnetic inductive light emitting wheel provided in the present light emitting wheel mainly installs a magnet on the internal periphery of the bearing, a wheel core casing at the external periphery of the bearing, and a sensing coil fixed in the wheel core casing, such that the bearing can be rotated to produce electromagnetic inductive current and supply power to the light emitting diode for emitting light onto the wheel. However, the electric generating device in this type of wheel core does not have the protection an independent casing, and the inductive coil frame may be short-circuited easily due to the collisions, and the coil may be damaged easily to lose the light emitting function. 
         [0005]    Some manufacturers also developed single-fulcrum wheel skating shoes, wherein an end of the wheel is fixed onto an external sidewall of a support stand of the shoe body, and another end of the wheel is suspended, such that the external side of the light emitting wheel is exposed completely from the support stand of the shoe body, and the light emitting wheel can emit a full color light right, but a shoe stand of the rear-wheel skating shoe is generally made of plastic materials, and thus the connecting position of the side wall of the shoe stand and the wheel is relatively weaker, such that when a user glide and stride on the skating shoe, uneven forces will be exerted onto the sidewall, and deformations may occur easily at the connecting positions of the sidewall of the shoe stand and the wheel, and the side wall of the shoe stand and the bottom plate of the shoe stand, and the sidewall of the shoe stand and the wheels and the sidewall of the shoe stand and the bottom plate of the shoe stand may be broken easily. As a result, users no longer can use and enjoy the fun of the skating shoe, and accidents may occur easily. 
       SUMMARY OF THE INVENTION 
       [0006]    In view of the foregoing shortcomings of the prior art, the inventor of the present invention based on years of experience in the related industry to conduct extensive researches and experiments, and finally developed a rear-wheel skating shoe in accordance with the present invention to overcome the foregoing shortcomings of the prior art. 
         [0007]    The primary objective of the present invention is to provide a rear-wheel skating shoe that enhances the structure, such that the structures at the connecting positions of the sidewall of the shoe stand and the wheel, the sidewall of the shoe stand and the bottom plate of the shoe stand become stronger to facilitate the light emitting wheel to be exposed easily, so that the running light emitting wheel can achieve the effect of emitting a full color light ring. An independent external casing is disposed outside the coil of electric generator in the light emitting wheel, so that the coil, circuit board and light emitting diode can have stronger connection, and the invention can enhance the popularity and promotion of products and effectively protect the useri    s sfety while using the skating shoes. 
         [0008]    To achieve the foregoing objective, the present invention provides a rear-wheel skating shoe comprising: a left shoe stand, a right shoe stand, a metal screw rod disposed on sidewalls of the right and left shoe stands, a light emitting wheel installed on the metal screw rod, a left reinforced stand installed in the sidewall of the left shoe stand, a right reinforced stand installed in the sidewall of the right shoe stand, and a reinforced plate installed at the bottom plate of the right shoe stand. 
         [0009]    Further, the bottom of a pedal of the left shoe stand has a press switch, and the press switch has a latch paw disposed at an end of the press switch, and the press switch is passed through an axle hinged left shoe stand, and the bottom of the pedal of the right shoe stand has a plurality of ratcheted positioning latch, and the end of the press switch on the left shoe stand is pressed onto a vertical surface of the ratcheted positioning latch on the bottom plate of the left shoe stand. The left reinforced stand, the right reinforced stand, and the reinforced plate are made of metals. The left shoe stand with the left reinforced stand covered with a plastic material, the right reinforced stand, and the right shoe stand with the right reinforced stand and reinforced plate covered with a plastic material have a common wheel axle hole disposed on the left reinforced stand and the sidewall of the left shoe stand, and a metal screw rod is passed through the sidewall of the right shoe stand and has a light emitting wheel installed at a position exposed from the external sidewall, and the metal screw rod is passed through the sidewall of the right shoe stand and has a light emitting wheel installed at a position exposed to the outside, and the light emitting wheel is fixed onto the metal screw rod by screws. 
         [0010]    Further, a distal portion of the reinforced plate has a penetrating hole, and the bottom of the right reinforced stand has a penetrating hole, and a fixing axle is installed in the penetrating hole and passed through the through hole between the right reinforced stand and the reinforced plate, and the right reinforced stand and the reinforced plate are integrally formed into a structure made by metal manufacturing. 
         [0011]    Further, the bottom of the left shoe stand is connected to the E-shaped bottom plate, and the metal screw rod is passed through the left shoe stand and extended into the E-shaped bottom plate, and another metal screw rod is passed through the right shoe stand and extended into the n-shaped bottom plate, 
         [0012]    Further, a lateral of the E-shaped bottom plate of the left shoe stand has a traveling slot, and a lateral of the bottom plate of the n-shaped bottom plate of the right shoe stand has a traveling screw extended into the traveling slot. The left shoe stand and the E-shaped bottom plate are integrally formed into a structure made by metal manufacturing. The metal screw rod is extended into the protruding pillar of the E-shaped bottom plate, and another metal screw rod is extended into the n-shaped bottom plate and at a position proximate to the n-shaped opening. 
         [0013]    The light emitting wheel includes an upper protecting casing and a lower protecting casing, wherein the upper and lower protecting casings are engaged to form a hollow box and form a module consisting of a lower conducting stand, an upper conducting stand and a coil. 
         [0014]    The upper protecting casing includes a circuit board disposed on an external lateral of the upper protecting casing, an insert pillar disposed at an end of the internal lateral of the upper protecting casing, an U-shaped opening disposed at an end of the internal lateral of the upper protecting casing, and a light emitting diode tube disposed in the U-shaped opening. The lower protecting casing includes an insert hole disposed at an end of the internal lateral of the lower protecting casing, a U-shaped opening disposed at an end of the internal lateral of the lower protecting casing, and the insert pillar of the upper protecting casing corresponds to the insert hole of the lower protecting casing, such that when the upper and lower protecting casings are engaged with each other, the insert pillar is fixed into the insert hole. 
         [0015]    The upper and lower protecting casings include a T-shape surface at an end of the external laterals of the upper and lower protective casings respectively for improving the brightness of the light emitting diode tube. The U-shaped opening of the upper protecting casing has a light emitting diode tube with a lamp head pointing at the external lateral of the upper protecting casing. The U-shaped opening of the upper protecting casing has a light emitting diode with a lamp head pointing at the top of the upper protecting casing. 
         [0016]    Compared with the prior art, the shoe stand of the skating shoe in accordance with the present invention has metal reinforced elements, such that the structures between the sidewall of the shoe stand and the wheel axle, the sidewall of the shoe stand and the bottom plate of the shoe stand become stronger. In addition, a metal screw rod is installed in the bottom plate of the skating shoe, so that the structure at the connecting position of the shoe stand and the bottom plate become stronger and provide a higher safety coefficient. Both shoe stand and bottom plate are made of plastic materials and integrally formed by plastic molding, so that the shoe stand and the bottom plate will not be deformed easily, and also provide a high safety coefficient, regardless of the skating shoes being used by men, women, elderly people or youngsters. In the meantime, an end of the wheel axle of the skating shoe is fixed to an external sidewall of a support stand of the shoe body, and another end is suspended. The wheel axle has a light emitting wheel, such that the external side of the light emitting wheel is exposed from the support stand of the shoe body, and the light emitting wheel can emit a full color light ring, so as to achieve the ideal effects of exercising in an environment of a colorful ring and providing lots of fun to users. 
         [0017]    Another effect of the present invention resides on that the module consisting of a lower conducting stand, an upper conducting stand and a coil is enclosed by the upper and lower protecting casings, such that the connections at the coil module, the circuit board and the light emitting diode tube becomes stronger and will not be deformed easily. If the rear-wheel skating shoes with light emitting wheels are used by users for walking and bumped into something and busted, the coil module of the wheel is protected by the protecting casing, and the electromagnetic coil frame is also protected. Even if the electromagnetic coil frame is hit, the coil module will not be short circuited to maintain a long life expectancy. In addition, the structural design of the skating shoe is simple, easy-to-assemble, flexible, safe and reliable. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0018]      FIG. 1  is an exploded view of a first preferred embodiment of the present invention; 
           [0019]      FIG. 2  is a schematic view of a structure in accordance with a first preferred embodiment of the present invention; 
           [0020]      FIG. 3  is a schematic view of a structure of a reinforced portion in accordance with a first preferred embodiment of the present invention; 
           [0021]      FIG. 4  is an exploded view of a structure of a reinforced portion in accordance with a first preferred embodiment of the present invention; 
           [0022]      FIG. 5  a schematic view of a structure in accordance with a second preferred embodiment of the present invention; 
           [0023]      FIG. 6  is an exploded view of a structure in accordance with a second preferred embodiment of the present invention; 
           [0024]      FIG. 7  is a section view of a bottom portion of a shoe in accordance with a second preferred embodiment of the present invention; 
           [0025]      FIG. 8  is a schematic view of a structure in accordance with a third preferred embodiment of the present invention; 
           [0026]      FIG. 9  is a top view of a protecting box in accordance with a third preferred embodiment of the present invention; 
           [0027]      FIG. 10  is an exploded view of a third preferred embodiment of the present invention; 
           [0028]      FIG. 11  is a schematic view of an overall structure having three wheels in accordance with a third preferred embodiment of the present invention; 
           [0029]      FIG. 12  is a schematic view of a structure of a fourth preferred embodiment of the present invention; 
           [0030]      FIG. 13  a section view of a bottom portion of a shoe in accordance with a fourth preferred embodiment of the present invention; and 
           [0031]      FIG. 14  is an exploded view of a fourth preferred embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0032]    To make it easier for our examiner to understand the objective, shape, structure, apparatus, characteristics and performance of the present invention, the following detailed description with reference to the accompanying drawing of preferred embodiments is given for example, but such preferred embodiments are not intended to limit the scope of the present invention. 
         [0033]    The related structure of the invention comprises the following components or devices, respectively: a screw  1 , a light emitting wheel  2 , a left reinforced stand  3 , a metal screw rod  4 , a left shoe stand  5 , a right shoe stand  6 , a right reinforced stand  7 , a press switch  8 , an axle  9 , a reinforced plate  10 , a fixed axle  11 , a penetrating hole  12 , a traveling screw  13 , a traveling slot  14 , an E-shaped bottom plate, an n-shaped bottom plate, an upper protecting casing  17 , a lower conducting stand  18 , an upper conducting stand  19 , a lower protecting casing  20 , a coil  21 , a T-shape surface  23 , a light emitting diode tube  24 , a circuit board  25 , a U-shaped opening  26  and an insert pillar  27 . 
         [0034]    In a first preferred embodiment of the present invention, the left and right shoe stands  5 ,  6  have the metal screw rod  4  disposed on external sidewalls of the left and right shoe stands  5 ,  6 , and the metal screw rod  4  installs the light emitting wheel  2 , and the sidewall of the left shoe stand  5  contains the left reinforced stand  3 , and the sidewall of the right shoe stand  6  contains the right reinforced stand  7 , and the bottom plate of the right shoe stand  6  contains the reinforced plate fixed to the right reinforced stand  7 . The left reinforced stand  3 , the right reinforced stand  7  and the reinforced plate  10  are made of metals, and the metal of the left reinforced stand  3  is covered by the left shoe stand  5  made of a color plastic material, and the metal of the right reinforced stand  7  and the reinforced plate  10  are covered by the right shoe stand  6  made of a color plastic material, so as to provide a better overall appearance of the skating shoe. 
         [0035]    The left shoe stand  5  has the press switch  8  installed at the bottom of a pedal of the left shoe stand  5 , and an end of the press switch  8  includes a latch paw, and the press switch  8  is passed through the axle  9  and hinged with the left shoe stand  5 . The bottom of a pedal of the right shoe stand  6  includes a plurality of ratcheted positioning latches, and the press switch  8  of the left shoe stand  5  presses on a vertical surface of the ratcheted positioning latch on the bottom plate of the right shoe stand  6 . If some portions of the left and right shoe stands  5 ,  6  are inserted into each other, an end of the press switch  8  on the left shoe stand  5  is pressed onto the ratcheted positioning latch on the right shoe stand  6 , such that the left and right shoe stands  5 ,  6  cannot be extended and pulled apart from each other, and users can adjust the width of the skating shoe naturally, conveniently and quickly. 
         [0036]    The left reinforced stand  3  and the left shoe stand  5  respectively have a common wheel axle hole disposed on sidewalls of the left reinforced stand  3  and the left shoe stand  5  for passing the metal screw rod  4 , and the metal screw rod  4  is passed through the axle hole of the left shoe stand  5  and includes a light emitting wheel  2  installed at the portion exposed from the external sidewall, and an end of the metal screw rod  4  is fixed onto the external sidewall of the left shoe stand  5  and another end of the metal screw rod  4  is suspended. The metal screw rod  4  installs a light emitting wheel  2 , such that the external side of the light emitting wheel  2  is exposed completely from the support stand of the shoe body, since the external side of the metal screw rod  4  towards the light emitting wheel  2  is suspended. Therefore, the light emitting wheel  2  can emit complete colorful lights to improve the aesthetic appearance and fun of the skating shoe. The invention also provides a blinking warning light for the safety purpose. 
         [0037]    An end of the reinforced plate  10  has the penetrating hole  12 , and the bottom of the right reinforced stand  6  has the penetrating hole  12 , and the fixed axle  1  is installed into the penetrating hole  12 , and the fixed axle  1  is passed through the penetrating hole  12  between the right reinforced stand  7  and the reinforced plate  10  (as shown in  FIGS. 3 and 4 ). 
         [0038]    In a second preferred embodiment of the present invention, the metal screw rod  4  is installed vertically onto sidewalls of the left and right shoe stands  5 ,  6 , and installs the light emitting wheel  2 , and the bottom of the left shoe stand  5  is connected to the E-shaped bottom plate  15 , and the bottom of the right shoe stand  6  is connected to the n-shaped bottom plate  16 . The metal screw rod  4  is passed through the left shoe stand  5  and extended into the E-shaped bottom plate  15 , and another metal screw rod  4  is passed through the right shoe stand and extended into the n-shaped bottom plate  16 . The left shoe stand  5  and the E-shaped bottom plate  15  are integrally formed into a structure made by plastic injection molding. The metal screw rod  4  is extended into the protruding pillar of the E-shaped bottom plate  15 , and another metal screw rod  4  is extended to the n-shaped b bottom plate  16  and at a position proximate to the n-shaped opening, and proximate to the bottom of the n-shaped opening of the n-shaped bottom plate  16  as shown in  FIG. 7 . When the E-shaped bottom plate  15  is engaged and latched with the n-shaped bottom plate  16 , the left and right adjacent metal screw rods  4  in the bottom plate of the skating shoes are provided for supporting the weight of the light emitting wheels  2  to improve the structural strength of the skating shoe with a single-fulcrum axle. 
         [0039]    A lateral of the E-shaped bottom plate  15  of the left shoe stand  5  includes the traveling slot  14 , and a lateral of the n-shaped bottom plate  16  of the right shoe stand  16  includes the traveling screw  13  extended into the traveling slot  14  for controlling the movement and adjusting the traveling route between the E-shaped bottom plate  15  of the left shoe stand  5  and the n-shaped bottom plate  16  of the right shoe stand  6 . The metal screw rod  4  is passed through the sidewall of the left shoe stand  5  and exposed from the portion having the light emitting wheel  2 , and the light emitting wheel  2  is fixed onto the metal screw rod  4  by the screw  1 . The metal rod  4  is passed through the sidewall of the right shoe stand  6  and exposed from the portion having the light emitting wheel  2 , and the light emitting wheel  2  is fixed onto the metal screw rod  4  by the screw  1 . 
         [0040]    In a third preferred embodiment of the present invention, the light emitting wheel includes the upper protecting casing  17  and the lower protecting casing  20 , and the upper protecting casing  17  and the lower protecting casing  20  are engaged to form a hollow box. The upper protecting casing  17  and the lower protecting casing  20  include a coil module consisted of the lower conducting stand  18 , the upper conducting stand  19  and the coil  21 , and covered by the upper and lower protecting casings  17 ,  20 . The upper and lower protecting casings  17 ,  20  contain two light emitting wheels therein and formed integrally as a whole, such that when the rear-wheel skating shoe with such light emitting wheels hits an object accidentally during its use, the coil module consisting of the lower conducting stand  18 , the upper conducting stand  19  and the coil  21  are covered and protected by the upper and lower protecting casings  17 ,  20 , such that the coil module will not be deformed or damaged easily. Even if the coil module is collided, short circuits or broken circuits will occur easily. 
         [0041]    In a fourth preferred embodiment of the present invention, the light emitting wheel  2  includes the upper protecting casing  17  and the lower protecting casing  20 , and the upper protecting casing  17  and the lower protecting casing  20  are engaged to form a hollow box. The upper protecting casing  17  and the lower protecting casing  20  contain a coil module consisting of the lower conducting stand  18 , the upper conducting stand  19  and the coil  21 . An external side of the upper protecting casing  17  includes the circuit board  25  and an end of an internal side of the upper protecting casing  17  has the insert pillar  27 , and an end of the internal side of the upper protecting casing  17  has the U-shaped opening  26 , and the U-shaped opening  26  contains the light emitting diode tube  24  connected to the circuit board  25 . An internal side of the lower protecting casing  20  includes the insert hole  22 , and an end of an internal side of the lower protecting casing  20  has the U-shaped opening  26 , and the insert pillar  27  of the upper protecting casing  27  corresponds to the insert hole  22  of the lower protecting casing  20 , such that when the upper and lower protecting casings  17 ,  20  are engaged with each other, the insert pillar  27  is fixed into the insert hole  22 . 
         [0042]    External sides of the upper and lower protecting casings  17 ,  20  have T-shaped surface  23  for improving the brightness of the light emitting diode tube  24 . The U-shaped opening  26  of the upper protecting casing  17  has a light emitting diode tube  24  with its lamp heads pointing at the external side of the upper protecting casing  17 , and also pointing at the top of the upper protecting casing  17 . If the light emitting wheel is hit and damaged during the use of the skating shoe, the coil module is protected by the lower protecting casing, and thus can prevent possible accidents. 
         [0043]    The description and its accompanied drawings are used for describing preferred embodiments of the present invention, and it is to be understood that the invention is not limited thereto. To the contrary, it is intended to cover various modifications and similar arrangements and procedures, and the scope of the appended claims therefore should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements and procedures.