CN103736267B

CN103736267B - A kind of roller-skates of detachable, replaceable accessory

Info

Publication number: CN103736267B
Application number: CN201410002642.5A
Authority: CN
Inventors: 苏楷年
Original assignee: Marco Skates Ltd
Current assignee: Zhongshan Magao Sports Goods Co.
Priority date: 2014-01-03
Filing date: 2014-01-03
Publication date: 2016-06-08
Anticipated expiration: 2034-01-03
Also published as: CN103736267A

Abstract

The present invention provides the roller-skates of a kind of detachable, replaceable accessory, it is characterized in that, including footwear shell, footwear bed, knife rest, pulley, described footwear shell is fixed on above described footwear bed by removably, described knife rest is fixed on below described footwear bed by removably, and described pulley is fixed on described knife rest by removably. The present invention is that the multiformity of roller skate, multifunctionality provide possibility. Various combination by the roller-skates to accessory detachable, replaceable, it is possible to obtain the roller skate with different characteristics being changed without on the basis of footwear shell and/or footwear bed. And, another benefit directly perceived that the roller-skates of accessory detachable, replaceable brings is more economically, once knife rest abrasion, then can be individually replaced knife rest, without changing whole pair of roller skate. Moreover, for roller skate footwear bed, knife rest, pulley design so that sporter can according to different sports events configuration pulleys so that the roller skate adaptability after assembling is higher.

Description

A kind of roller-skates of detachable, replaceable accessory

Technical field

The present invention relates to sporting goods, especially roller skate, in particular it relates to inline skate, especially dismountable roller skate.

Background technology

Roller skating is a kind of outdoor activity, is liked by numerous sports fans. In recent years, roller skating develops into athletics event, more becomes the motion that a whole world teenager is fascinated.

From the angle of sports events, roller skating atmosphere roller derby (point racing cycle and place match), acrobatic roller skating and skidding ball and the kind such as rollerboarding and double skidding, different roller skatings can be participated in for different crowds, technical ability. From the kind of roller skate, it will usually divide into inline skate, double roller skate. Different types of footwear are applicable to different purposes and sports events.

Whether professional player, or amateurish level player, have certain requirement for roller skate. Adopt different designs, the roller skate of different process is different for the miscellaneous function of roller skating, for instance adopts elastic material preferably, then can promote to some extent for shockproof function. And simultaneously as the projects such as extreme sport can cause that roller skate and guardrail, ground rub tempestuously, it is easy to cause the abrasion of roller skate. Roller skate is once abrasion, and current way is the roller skate more renewed, and this brings certain economic pressures to sports fan, also result in substantial amounts of waste. Meanwhile, the roller skate required for extreme sport is preferably able to provide bigger auxiliary from the design angle of roller skate for extreme sport. And from existing market situation, it is not in the Novel roller skates of the two purpose design.

Therefore, it is necessary to provide a kind of dismountable roller skate based on new design.

Summary of the invention

For roller skate serious wear in prior art and the technological deficiency that maximum technology auxiliary cannot be given for extreme sport, it is an object of the invention to provide a kind of dismountable roller skate.

According to an aspect of the present invention, the roller-skates of a kind of detachable, replaceable accessory is provided, it is characterized in that, including footwear shell, footwear bed, knife rest, pulley, wherein, described footwear shell is fixed on above described footwear bed by removably, and described knife rest is fixed on below described footwear bed by removably, and described pulley is fixed on described knife rest by removably.

Preferably, Widening Design is adopted inside and outside described footwear bed.

Preferably, it is provided externally with extension what footwear were cheated inside and outside described footwear bed.

Preferably, described extension is the design of multilamellar radian.

Preferably, the inner side of the part that described footwear bed mooring is closely middle is provided with the first depressed part, outside is provided with the second depressed part.

Preferably, the radian of described first depressed part is more than described second depressed part.

Preferably, described knife rest in the following way in any one fix with described shoe: screw; Or draw-in groove.

Preferably, the bottom of described knife rest has the 3rd depressed part.

Preferably, described 3rd depressed part is inverted U.

Preferably, described knife rest is additionally provided with multiple hollow out.

Preferably, described roller-skates at least includes two different pulleys of size.

Preferably, described roller skate includes four pulleys, and the size relationship of described four pulleys be following in any one:

The size being sized larger than middle two pulleys of-former and later two pulleys; Or

The size being sized larger than former and later two pulleys of-middle two pulleys;

The consistent size of-four pulleys.

Preferably, described knife rest is at least provided with two oval screws.

Preferably, the diameter of described screw above-below direction is more than the diameter of left and right directions.

Preferably, the pulley that described size is different is fixed on described knife rest by eccentric lockwheel screw.

The present invention, by providing the roller skate of a kind of detachable, replaceable accessory, provides possibility for the multiformity of roller skate, multifunctionality. Various combination by the roller-skates to accessory detachable, replaceable, it is possible to obtain the roller skate with different characteristics being changed without on the basis of footwear shell and/or footwear bed. And, another benefit directly perceived that the roller-skates of accessory detachable, replaceable brings is more economically, once knife rest abrasion, then can be individually replaced knife rest, without changing whole pair of roller skate. Moreover, for roller skate footwear bed, knife rest, pulley design so that sporter can according to different sports events configuration pulleys so that the roller skate adaptability after assembling is higher.

Accompanying drawing explanation

By reading detailed description non-limiting example made with reference to the following drawings, the other features, objects and advantages of the present invention will become more apparent upon:

Fig. 1 illustrates according to the first embodiment of the present invention, the decomposing schematic representation of the roller-skates of accessory detachable, replaceable;

Fig. 2 illustrates according to the first embodiment of the present invention, the schematic diagram after the roller-skates assembling of accessory detachable, replaceable;

Fig. 3 illustrates according to the first embodiment of the present invention, for the top view of footwear bed of the roller-skates of detachable, replaceable accessory provided by the invention;

Fig. 4 illustrates according to the first embodiment of the present invention, for the axonometric chart of footwear bed of the roller-skates of detachable, replaceable accessory provided by the invention;

Fig. 5 illustrates according to the first embodiment of the present invention, for the upward view of footwear bed of the roller-skates of detachable, replaceable accessory provided by the invention;

Fig. 6 illustrates according to the first embodiment of the present invention, for the side view of knife rest of the roller-skates of detachable, replaceable accessory provided by the invention;

Fig. 7 illustrates according to the first embodiment of the present invention, for the upward view of knife rest of the roller-skates of detachable, replaceable accessory provided by the invention;

Fig. 8 illustrates according to the first embodiment of the present invention, the schematic diagram after assembling with pulley for the knife rest of the roller-skates of detachable, replaceable accessory provided by the invention; And

Fig. 9 illustrates according to the second embodiment of the present invention, the schematic diagram after assembling with pulley for the knife rest of the roller-skates of detachable, replaceable accessory provided by the invention.

Detailed description of the invention

Fig. 1 illustrates according to the first embodiment of the present invention, the decomposing schematic representation of the roller-skates of accessory detachable, replaceable. Specifically, in the present embodiment, it is shown that a kind of roller-skates detachable, replaceable accessory assemble before schematic diagram. Skilled artisan understands that understanding, unlike the prior art, roller skate is decomposed going up to greatest extent by dismountable roller skate provided by the present invention, it is possible to decomposition part is combined. Specifically, in the present embodiment, described dismountable roller skate includes footwear shell 1, footwear bed 2, knife rest 3, pulley. Wherein, described footwear shell 1 is fixed on the top of described footwear bed 2 by removably, and described knife rest 3 is fixed on the lower section of described footwear bed 2 by removably, and described pulley is fixed on described knife rest 3 by removably.

More specifically, skilled artisan understands that, in the present embodiment, pulley can adopt various sizes of pulley, for instance in the embodiment shown in fig. 1, have employed the pulley of two kinds of sizes, namely four pulleys are had altogether, wherein, two intermediate pulley 42 are reduced size, and two two head sheaves 41 are large-size. The dimension scale of described intermediate pulley 42 and two head sheaves 41 can adjust according to real needs, such as in a preferred embodiment, the dimension scale of described intermediate pulley 42 and two head sheaves 41 is 3: 4, and in a further advantageous embodiment, the dimension scale of described intermediate pulley 42 and two head sheaves 41 is 4: 5, and this has no effect on the essential content of the present invention. But meanwhile, it will be appreciated by those skilled in the art that described dimension scale needs within limits, specifically as shown in Figure 9 described in embodiment, do not repeat them here.

Further, art technology person understands, and with reference to following Fig. 8 and embodiment illustrated in fig. 9, the position of described intermediate pulley 42 and two head sheaves 41 can be intercoursed, and the roller skate after exchange may be used for corresponding purposes, does not repeat them here.

Further, it will be appreciated by those skilled in the art that in a change case, it is also possible to considering to make as a whole for commercialization by described footwear shell 1 with described footwear bed 2, namely described footwear shell 1 is connected as a whole with described footwear bed 2, rather than dismountable parts. But such mode is flexible not as good as embodiment illustrated in fig. 1 far away, and footwear bed 2 itself is need to change in many instances, such as footwear bed 2 weares and teares or aging, need the footwear bed 2 more renewed to improve the overall performance of roller skate, now then can more environmentally-friendly, saving cost based on the product of embodiment illustrated in fig. 1.

Fig. 2 illustrates according to the first embodiment of the present invention, the schematic diagram after the roller-skates assembling of accessory detachable, replaceable. Embodiment illustrated in fig. 2 is shown in Fig. 1 four unit constructions to the schematic diagram after together, namely footwear shell 1 is fixed on the top of described footwear bed 2, the bottom of described footwear bed 2 fixed by described knife rest 3, described pulley is fixed on described knife rest 3, thus defining the roller-skates of a complete accessory detachable, replaceable. Be can be seen that by embodiment illustrated in fig. 2, by structural design provided by the invention, described roller-skates detachable, replaceable accessory has become as an entirety, and it has enough robustnesses, its performance is not a halfpenny the worse compared with the rows of roller skate of integration, also there is more motility and other performances simultaneously, as mentioned below, do not repeat them here.

Further, it will be appreciated by those skilled in the art that by the framework shown in Fig. 1, it is also possible to the roller skate shown in Fig. 2 is split, be namely again split as four shown in Fig. 1 parts, do not repeat them here.

Further, skilled artisan understands that, preferably, it is attached by screw between each parts, the such as bottom surface of footwear bed 2 at least has two screws, and screw is from top to bottom through described footwear bed 2 and stretch into the bottom surface of described knife rest 3, the right later nut corresponding with described screw screws described screw in the lower section of described knife rest 3, thus described footwear bed 2 and described knife rest 3 being fixed. And in a change case, can also adopt other modes that described footwear bed 2 is attached with described knife rest 3, such as the bottom of described footwear bed 2 is provided with groove, and described groove has a rectangular shaped, correspondingly, the top of described knife rest 3 is provided with the extension corresponding with groove, and described extension stretch into described groove after can be fixed in described groove, so that described knife rest 3 can fix with described footwear bed 2, do not repeat them here. Similarly, it is also possible to connect described footwear bed 2 and described knife rest 3 by other means, do not repeat them here.

With reference to Fig. 1 and Fig. 2, it will be appreciated by those skilled in the art that the needs according to market, roller skate provided by the invention can be the roller skate of sizes. Illustrate only the roller skate of a kind of size in Fig. 1 and Fig. 2, the ratio of its each parts is concrete as shown in Figure 1 and Figure 2. And in various embodiments, according to different design needs, the ratio of above-mentioned each parts can correspondingly be adjusted, but such adjustment has no effect on the technology contents of the present invention.

Further, it will be appreciated by those skilled in the art that below in Fig. 3 to Fig. 9 embodiment and change case, the design of footwear bed, knife rest etc. can be finely tuned according to various sizes of roller skate, described in literary composition specific as follows.

Fig. 3 illustrates according to the first embodiment of the present invention, for the top view of footwear bed of the roller-skates of detachable, replaceable accessory provided by the invention. In the present embodiment, Widening Design is all adopted inside and outside described footwear bed 2, namely lines as shown in Figure 3 are than the part of comparatively dense, the front left side 211 of such as footwear bed 2, the left rear side 212 of footwear bed 2, footwear bed 2 forward right side 213, right lateral side 214 of footwear bed 2 etc., these positions all have employed Widening Design.

Further, it will be appreciated by those skilled in the art that above-mentioned Widening Design by realizing in the extension that is provided externally with in footwear hole 22 inside and outside described footwear bed 2, the outside that namely described extension cheats 22 at described footwear extends certain size.

Further, it will be appreciated by those skilled in the art that the thickness of described extension can cheat the thickness of 22 parts with the footwear of described footwear bed 2 identical, and in a further advantageous embodiment, the thickness of described extension is slightly less than the footwear of described footwear bed 2 and cheats the thickness of 22 parts. Such as, in a preferred embodiment, the top of described extension and described footwear are cheated the top of 22 and are to maintain level, but the bottom of described extension is higher than the bottom in described footwear hole 22, and namely side is seen, it can be seen that the bottom in described footwear hole 22; And in a further advantageous embodiment, the top of 22 is cheated slightly below described footwear in the top of described extension, the bottom of 22 is cheated in the bottom of described extension slightly above described footwear simultaneously, and namely side is seen, it is possible to simultaneously view top and the bottom in described footwear hole 22;And in a further advantageous embodiment, the top of 22 is cheated lower than described footwear in the top of described extension, the bottom maintenance level of 22 is then cheated in the bottom of described extension with described footwear simultaneously, and namely side is seen, it can be seen that the top in described footwear hole 22, does not repeat them here.

Further, it will be appreciated by those skilled in the art that the material of described extension can adopt same material with described footwear hole, it would however also be possible to employ different materials. Such as, in a preferred embodiment, described footwear hole 22 employing elastomeric material, described extension then adopts plastic material. It will be appreciated by those skilled in the art that by adopting different materials, it is possible to the comfort level making sporter is different, does not repeat them here.

Referring again to embodiment illustrated in fig. 3, it will be appreciated by those skilled in the art that in the present embodiment, described footwear hole 22 also has two screws, described screw, for being fixed with described knife rest 3 by described footwear bed 2 by screw, is not repeated them here. And embodiment is set forth as shown in Figure 2, described screw can also be substituted by other modes, such as in a change case of embodiment illustrated in fig. 3, it would however also be possible to employ the mode of groove is set in the bottom surface of described footwear bed 2 as the mode fixing with described knife rest 3, does not repeat them here.

Fig. 4 illustrates according to the first embodiment of the present invention, for the axonometric chart of footwear bed of the roller-skates of detachable, replaceable accessory provided by the invention. Fig. 4 institute embodiment is the view of another angle of example, i.e. axonometric chart shown in Fig. 3. By embodiment illustrated in fig. 4 it can be seen that described footwear hole 22 is in a groove-like, namely for placing the bottom surface of described footwear shell 1 so that described footwear shell 1 can closely be combined with described footwear bed 2. And be appreciated that in conjunction with Fig. 2 and Fig. 4, the extension of described footwear bed 2, i.e. Widening Design provided by the present invention, can be supported around the bottom surface of described footwear shell 1, such that it is able to described roller-skates detachable, replaceable accessory is assisted, be conducive to improving the performance of roller skate, do not repeat them here.

With reference to above-mentioned Fig. 3 and embodiment illustrated in fig. 4, it will be appreciated by those skilled in the art that described footwear bed 2 have employed the radian design of multilamellar, from multiple lines of Fig. 3 and Fig. 4, can be seen that described multilamellar radian designs. Designed by described multilamellar radian, can effectively grab any plane of patch or cylindrical surface. Make athlete or player, sliding different surfaces more confidence and completing grandstand play. Under some circumstances, roller skating stresses the continuity of grandstand play. After on completing after an action, remaining stable for, balancing, athlete just can then next action. Therefore, it is accomplished by stressing the radian of footwear bed between action from action can coincide different planes or cylinder radian.

Meanwhile, the Widening Design of footwear bed 2 is it is important that provide lines or the hole stricture of vagina of radian concave or convex, and is all constituted with radian with both sides forward and backward. Effectively slide from different planes between fine tunnel by these multi-level radians, concavo-convex lines. Therefore, while disequilibrium does not remain stable for again, athlete just can accelerate followed by carrying out next group fancy or running.

Fig. 5 illustrates according to the first embodiment of the present invention, for the upward view of footwear bed 2 of the roller-skates of detachable, replaceable accessory provided by the invention. Fig. 5 institute embodiment is the view of another angle of example, i.e. upward view shown in Fig. 3, Fig. 4. By embodiment illustrated in fig. 5 it can be seen that described footwear bed 2 is provided with the first depressed part 24 near the inner side of middle part, outside is provided with the second depressed part 23.Described first depressed part the 24, second depressed part 23 is engraved structure, namely from the angle of Fig. 5, it can be seen that described extension is corresponding to the part of described first depressed part the 24, second depressed part 23, and from angle shown in Fig. 3, then can only see extension and but can't see described first depressed part the 24, second depressed part 23.

By the setting of above-mentioned first depressed part the 24, second depressed part 23, it is important that more favorably, more for cylindrical slide. Described first depressed part the 24, second depressed part 23 is radian, semicircular design, such that it is able to realize These characteristics.

More specifically, it will be appreciated by those skilled in the art that periphery is the surface of radian or semicircular in shape, to slide in radian face during skidding or left and right foot tilts, the action of sideslip. The two breach/radian, semi-circular design is just an up coincideing of arcuate surfaces. We assume that do not have the radian of the two depressed part to design, run into radian face when sliding, then athlete is likely to lose center of gravity, thus highly difficult action cannot be completed. Further, it will be assumed that do not have the design of the radian of the two depressed part, left and right foot tilts the action breakked away, can only be inadequate and of short duration slide.

Further, it is appreciated that with reference to 5 illustrated embodiments, the radian of described first depressed part 24 is preferably more than the radian of described second depressed part 23, setting in this way, make inside the foot of sporter, to be easier to contact railing or ground, thus being conducive to controlling roller skate, do not repeat them here.

With reference to above-mentioned Fig. 3 to embodiment illustrated in fig. 5, it will be appreciated by those skilled in the art that roller skating, stress speed when sliding. There is speed can promote bigger thrust, the fancy having enough thrust that athlete or user can be made to make various kinds and action. But roller skating is more to slide on different angles, the different plane of radian or the surface of cylinder, will promote roller skate and slide in the smoothness of different surfaces, and footwear bed periphery is necessary for lines or the hole stricture of vagina of subsidiary different radian. Therefore, the radian design of multilamellar just can improve more stable, sliding of more fitting. The tire of its effect just equivalent automobile, the function that different hole stricture of vagina tools is different. And the design of the ingenious and innovation of footwear bed provided by the invention, effectively remain stable for, allow athlete's limbs from the danger of traumatic injury when balancing, also improve safety, make roller skating also significantly ensure human-body safety while promoting fancy.

Fig. 6 illustrates according to the first embodiment of the present invention, for the side view of knife rest of the roller-skates of detachable, replaceable accessory provided by the invention. It will be appreciated by those skilled in the art that the bottom of described knife rest has the 3rd depressed part 33, and preferably, described 3rd depressed part 33 is inverted U. It will be appreciated by those skilled in the art that described 3rd depressed part 33 of employing, it is important that more favorably, more for cylindrical slide. Periphery is the surface of radian or semicircular in shape, to slide in radian face or left and right foot tilts, the action of sideslip during skidding. The inverted U design of described 3rd depressed part 33 or semi-circular design are just an up coincideing of arcuate surfaces. Assuming not this radian design, run into radian face when sliding, athlete is likely to lose center of gravity, thus cannot execution. Or, it will be assumed that, it does not have the design of the radian of described 3rd depressed part 33, left and right foot tilts the action breakked away, can only be inadequate and of short duration slide.

Further, in the present embodiment, described knife rest is additionally provided with multiple hollow outs 321,322 etc.It will be appreciated by those skilled in the art that namely described hollow out 321,322 can alleviate the weight of roller skate provided by the present invention, it is also possible to ensure the performance of roller skate when being appropriately arranged with hollow out. Meanwhile, hollow out 321,322 etc. also has enough aesthetic properties, does not repeat them here.

Further right, it will be appreciated by those skilled in the art that in the present embodiment, in order to knife rest 3 and pulley be fixed, described knife rest 3 be also provided with multiple screw. Specifically, in the present embodiment, it is provided with four screws, respectively first screw the 311, second screw the 312, the 3rd screw the 313, the 4th screw 314.

Further, it will be appreciated by those skilled in the art that the design by the 3rd depressed part on above-mentioned knife rest 3 so that knife rest 3 has radian, so that roller skate provided by the invention can slide on periphery, can namely allow athlete carry out " sideslip " simultaneously. There is the radian/arch bridge design on knife rest, slided in cylinder, break away, action will be made more stable. Further, in a preferred embodiment, described knife rest 3 is metal manufacture, and cylinder is also metal manufacture, and the radian that the 3rd depressed part of metal and metal grinding, knife rest is formed slides in cylinder cambered surface, and energy enhancing action is more smooth, more stable.

Fig. 7 illustrates according to the first embodiment of the present invention, for the upward view of knife rest of the roller-skates of detachable, replaceable accessory provided by the invention. With reference to the present embodiment, it will be appreciated by those skilled in the art that preferably, described knife rest 3 is installed in the lower section of described shoe 2. And the connection of described knife rest 3 and described shoe 2 can be accomplished in several ways. For instance, it is preferred that described knife rest 3 can in the following way in any one fix with described shoe: screw; Or draw-in groove.

In this embodiment, it is preferred that, by screw, described knife rest 3 is arranged on the lower section of described shoe 2. Specifically, the bottom surface of knife rest 3 is provided with two screws 341,342, does not repeat them here.

Further, with reference to embodiment illustrated in fig. 7, it will be appreciated by those skilled in the art that described pulley at least according in neutral 35 position, is not repeated them here.

Fig. 8 illustrates according to the first embodiment of the present invention, the schematic diagram after assembling with pulley for the knife rest of the roller-skates of detachable, replaceable accessory provided by the invention. It will be appreciated by those skilled in the art that preferably, at least include two different pulleys of size according to described roller-skates provided by the invention. In another preferred embodiment, it is preferable that described roller skate includes four pulleys, for instance the first pulley the 41, second pulley the 42, the 3rd pulley 43 and the 4th pulley 44 shown in Fig. 8. In the present embodiment, the size being sized larger than the second pulley the 42, the 3rd pulley 43 of described first pulley 41 and the 4th pulley 44, the i.e. size being sized larger than middle two pulleys of former and later two pulleys. And in a change case, such as shown in Fig. 9 according to the second embodiment of the present invention, in schematic diagram after assembling with pulley for the knife rest of the roller-skates of detachable, replaceable accessory provided by the invention, the size being sized larger than former and later two pulleys of middle two pulleys, namely described first pulley the 41, the 4th pulley 44 has exchanged position with described second pulley the 42, the 3rd pulley 43.

Further, with reference to above-mentioned Fig. 6 to embodiment illustrated in fig. 9, skilled artisan understands that, described knife rest 3 is at least provided with two oval screws, namely at least two screw in first screw the 311, second screw the 312, the 3rd screw the 313, the 4th screw 314 shown in Fig. 6 is oval, or it is the screw of irregular cycle, and the radius of the first half of this irregular cycle is more than the radius of the lower half of described irregular cycle.Further, it will be appreciated by those skilled in the art that in a change case, the diameter of described screw above-below direction set in described knife rest 3 is more than the diameter of left and right directions.

Further, skilled artisan understands that, by described ellipse screw or irregular cycle screw, in a change case, the consistent size of four pulleys, then by being fixed on by pulley on the differing heights in described irregular screw, can cause that the height of the four wheels of roller skate provided by the present invention is different. Further, the pulley that described size described in Fig. 8 and Fig. 9 is different can also be fixed on the differing heights in described irregular screw. Further, it will be appreciated by those skilled in the art that and by eccentric lockwheel screw, described pulley can be fixed on described knife rest 3, do not repeat them here.

Further, it will be appreciated by those skilled in the art that traditional screw is circular, therefore, it is impossible to adjust " rising " or " decline " size, the function namely not adjusted. In a preferred embodiment, described knife rest 3 arranges 4 groups of eccentric screwholes altogether, be vertical ellipse screw. This kind of vertical ellipse is arranged, and can produce the function of adjustment, including the space allocation risen or fallen. Therefore, eccentric screwhole rise or fall adjustment, also make in roller skate 4 pulleys can be adjusted, mix the pulley of different-diameter.

Further, it will be appreciated by those skilled in the art that tradition roller skate can carry out pulley replacing, but the diameter of pulley or size must be identical, say, that 4 pulley sizes are identical, only adapt to single place and carry out roller skating. and roller skate provided by the invention, can according to athletic requirement, the requirement in place, mix the pulley of different-diameter, and above-mentioned Fig. 8 can be made, adjustment shown in Fig. 9, the adjustment of other forms can also be made, such as in a preferred embodiment, can by the first pulley 41 described above, the size of the 4th pulley 44 is amplified further, simultaneously by described second pulley 42, the size of the 3rd pulley 43 reduces further, again such as in another embodiment, can simultaneously by described first pulley 41, 4th pulley 44 and described second pulley 42, 3rd pulley 43 size is adjusted, this has no effect on the technology contents of the present invention.

Above specific embodiments of the invention are described. It is to be appreciated that the invention is not limited in above-mentioned particular implementation, those skilled in the art can make various deformation or amendment within the scope of the claims, and this has no effect on the flesh and blood of the present invention.

Claims

1. the roller-skates of an accessory detachable, replaceable, it is characterized in that, including footwear shell, footwear bed, knife rest, pulley, wherein, described footwear shell is fixed on above described footwear bed by removably, and described knife rest is fixed on below described footwear bed by removably, and described pulley is fixed on described knife rest by removably, adopting Widening Design inside and outside described footwear bed, Widening Design part is the design of multilamellar radian.

2. roller-skates according to claim 1, it is characterised in that described Widening Design by realizing in the extension that is provided externally with in footwear hole inside and outside described footwear bed.

3. roller-skates according to claim 1 and 2, it is characterised in that the inner side of the part that described footwear bed mooring is closely middle is provided with the first depressed part, outside is provided with the second depressed part.

4. roller-skates according to claim 3, it is characterised in that the radian of described first depressed part is more than described second depressed part.

5. roller-skates according to claim 4, it is characterised in that described knife rest in the following way in any one fix with described footwear bed:

-screw; Or

-draw-in groove.

6. roller-skates according to claim 5, it is characterised in that the bottom of described knife rest has the 3rd depressed part.

7. roller-skates according to claim 6, it is characterised in that described 3rd depressed part is inverted U.

8. the roller-skates according to claim 5 or 6, it is characterised in that described knife rest is additionally provided with multiple hollow out.

9. the roller-skates according to any one of claim 1 or 2 or 4-7, it is characterised in that at least include two different pulleys of size.

10. roller-skates according to claim 9, it is characterised in that include four pulleys, and the size relationship of described four pulleys be following in any one:

The size being sized larger than former and later two pulleys of-middle two pulleys.

11. roller-skates according to claim 10, it is characterised in that described knife rest is at least provided with two oval screws.

12. roller-skates according to claim 11, it is characterised in that the diameter of described screw above-below direction is more than the diameter of left and right directions.

13. the roller-skates according to any one of claim 10 to 12, it is characterised in that the pulley that described size is different is fixed on described knife rest by eccentric lockwheel screw.