CN1312042A

CN1312042A - Spike of making runner have stable running and recoil when pressing down by feet, and spike for spork and race

Info

Publication number: CN1312042A
Application number: CN 00102205
Authority: CN
Inventors: 小山由喜
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-02-04
Filing date: 2000-02-04
Publication date: 2001-09-12

Abstract

The front end of base portion of shoe nail is formed into claw portion, and the front end of the claw portion is formed into ladder form, from said claw portion to rear side portion of base portion a curved portion is set longitudinally, the upper end of the base portion is formed into a flange portion, and its perphery is formed into concave-convex form. Said inventino can utilize the tubular nail mounting tool capable of making said cancave-convex for inlay into the concave-convex portion set on its internal surface to fix it no the shoe sole to change said jogged state to change said curved portion direction.

Description

The shoe tack and the sports and competitions spikes thereof of the stable recoil of running with pedaling

The present invention relates to the improvement of sports and competitions with the shoe tack of footwear, the shape of particularly improving this kind shoe tack makes to recoil when running with pedaling to be stablized, and reduces the damage to runway, can bring into play the technology of propulsive force when running to greatest extent.

In the running of track and field events, be added to body weight load on the foot bottom land from the outside portion at heel rear begin through the bulb ground connection of the bulb of not stepping on outer side edges portion of portion, the 5th toe (little finger of toe), first toe (thumb) and first toe section, crus secunda toe in the 5th toe section ground connection with to pedal the ground recoil motion corresponding and mobile in turn.In pedaling ground recoil process, propulsive force takes place in the recoil strength that presses the ground generation owing to the tiptoe portion of sole, runs forward owing to this propulsive force.

Forward propulsion when recoiling in order when running, to bring into play to greatest extent with pedaling, for the sports and competitions footwear, should suppress to be configured in the shoe tack slip backward of tiptoe portion as far as possible, simultaneously, must make the frictional resistance of shoe tack when extracting that thrusts ground minimum and can successfully extract, the grip of shoe tack is increased and bring into play ground propulsive force forward to greatest extent from ground.

The shoe tack 95 that is fixed on sports and competitions with 7 pin shapes of the front portion 93 of the sole 92 of footwear 91 shown in Figure 11.The 94th, the rear portion of sole 92.

In addition, the real public clear 48-30448 communique of Japanese Utility Model notification number proposes a kind of base edge of the pin shape shoe tack of using from track and field events towards front end, and the longitudinal direction central shaft along shoe tack on its left and right side is provided with the scheme that section is the groove of semicircle shape.

This kind shoe tack shape shoe tack is easy to thrust ground when running, because the groove that is arranged on the left and right side increases the contact area with ground, can strengthen the grip of left and right side, but the grip of the rear lateral portion of this pin shape shoe tack is not enough when recoiling with pedaling, can not makes recoil stable with pedaling.

In addition, stable for the recoil that makes such pin shape shoe tack, the length that must make pin shape shoe tack is more than 9mm with pedaling.

Yet, in the occasion of using this long shoe tack, when the pin shape shoe tack that recoil the time will be thrust ground with pedaling is extracted, very big with the frictional resistance on ground, can the forfeiture recoil strength that sends of ground and reduce forward propulsive force, this is an one shortcoming, also have simultaneously a shortcoming be on ground for occasion through round-the-clock competition field of mating formation, can cause damage to the pavement material of runway.

So, purpose of the present invention is exactly that a kind of shortcoming that can reduce the existing pin shape of this kind shoe tack will be provided, can stablize when running recoil increases propulsive force with pedaling the time, to the few shoe tack of the pavement material damage of running and have the sports and competitions footwear of this kind shoe tack.

The present invention forms claw on the front end side of shoe tack base portion, the front end of this claw is trapezoidal, begin to be provided with recess from above-mentioned claw to the rear lateral portion of above-mentioned base portion, because the longitudinal direction bending of the relative shoe tack of this recess, so can stablize the recoil when running with pedaling, can reduce damage simultaneously to runway.

In addition, front end at the base portion of above-mentioned shoe tack is formed with flange part, on the periphery of this flange part, be formed with concavo-convex, because this concavo-convex shoe tack installation tool that is embedded in the cylindrical portion in be provided with on its inner surface concavo-convex is fixed on the sole by having, can be by changing the direction that above-mentioned chimerism changes above-mentioned recess, so thereby can change the direction of above-mentioned recess and can bring into play propulsive force when running to greatest extent according to everyone direction of pedaling the ground recoil motion of using this running shoes.

Fig. 1 is the amplification rearview that the shoe tack of first example of the present invention is shown;

Fig. 2 is the cutaway view of the II-II line along Fig. 1;

Fig. 3 is the end view drawing of the III-III line along Fig. 1;

Fig. 4 is the longitudinal section that the user mode of this first example is shown;

Fig. 5 is the longitudinal section that second example of the present invention is shown;

Fig. 6 installs the longitudinal section that the part of tool is cut open for the shoe tack that will use in this second example;

The longitudinal section that Fig. 7 cuts open for the part of the parts that will use in this second example;

Fig. 8 is the cutaway view of the VIII-VIII line along Fig. 5;

Fig. 9 is the longitudinal section that the variation of this second example is shown;

Figure 10 is the key diagram of the user mode of this second example;

Figure 11 is the oblique view that dwindles of existing example.

In order to describe the present invention in detail, describe with reference to accompanying drawing.

Fig. 1 is the amplification rearview of shoe tack that first example of the present patent application is shown; Fig. 2 is the cutaway view of the II-worker's II line along Fig. 1; Fig. 3 is for only illustrating the cutaway view of the III-part that the III line is cut open along Fig. 1; Fig. 4 is the longitudinal section that the user mode of this first example is shown.

In Fig. 1 to Fig. 4, be wholely set flange part 3 at the front end of base portion 2 in the shoe tack on the sole of footwear 1 being fixed in sports and competitions, be formed with claw 4 at the front end (lower end) of base portion 2.Recess 6 forms for crescent shape is cut in the back of base portion 2, forms claw 4 by recess 6.

Like this, from claw 4 to base portion 2, the central shaft 7 of the longitudinal direction of shoe tack 1 is provided with the recess 6 that is bent to crescent shape relatively.

The material of shoe tack 1 can by, such as, high-abrasive materials such as the superalloy of hard resin, aluminium alloy, malleableize (tough pillars) aluminium alloy, stainless steel, carbon steel, cermet, tungsten etc., titanium alloy, pottery constitute, that its base portion 2 shapes can be is cylindric, frusto-conical (is substrate with flange part 3 sides), pyramidal, butt is pyramidal (is substrate with flange part 3 sides) and other suitable shape, claw 4 is thinner than base portion 2, with base portion 2 one or form on the leading section of base portion 2 separately in addition.The front end of claw 4 is trapezoidal.The front end face 5 of claw 4 is a flat surfaces.In addition, also can represent flat surfaces as front end face 5 during for the shape of the effect that can bear aftermentioned power (γ represents with vector).

The section of recess 6 is cochlear (illustrating with dotted line among Fig. 3) or even shape (illustrating with solid line among Fig. 3).In addition and since recess 6 be shaped as above-mentioned curved surface, be well suited for shoe tack 1 is successfully extracted from ground 81 when recoiling running with pedaling.

Shoe tack 1 can utilize to be installed tool (the same with installation tool described later 21, as also can not want rag 22b but be used to that shoe tack 1 is installed) recess 6 is fixed in the preceding bottom (front portion 93 that be equivalent to the sole 92 of Figure 11) of sports and competitions with footwear with the rear side state with Figure 10 described later the samely.At this moment, the base portion 2 of shoe tack 1 and claw 4 are outstanding downwards in the preceding bottom of above-mentioned sport footwear.

So, when the sports and competitions that have a shoe tack 1 as dress are run with footwear, in the process of running first toe section, crus secunda toe to the five toe section ground connection and ground 81 recoiled with kicking backward when, shoe tack 1 is 82 (referring to Fig. 4) the ground because the pressure of body weight is nipped from ground 81.

At this moment,, catch ground 81, can enlarge and grab area and grip is significantly increased in the mode that recess 6 is bitten owing to be provided with recess 6 in the rear lateral portion of shoe tack 1.Therefore, the length of shoe tack 1 (length of the central shaft 7 of longitudinal direction) is even below 8mm, the situation that also rare shoe tack 1 rearward slides when being recoiled in ground 81 with kicking backward.

And, when recoiling with pedaling, to act on the power of upper portion 6a of recess 6 of the rear lateral portion of shoe tack 1 be vector to 81 recoil strength that send from ground, the power that acts on down on the quadrate part 6b is vector beta, the power that acts on the front end face 5 of claw 4 is vector γ, because the vector of these power and alpha+beta+γ forward action is on

shoe tack

1,81 pull-out resistances are little so shoe tack 1 is from ground, and above-mentioned vector and alpha+beta+γ can make propulsive force forward significantly increase simultaneously.

And, can be shorter than 8mm because constitute the length of shoe tack 1, so have the contest of shoe tack 1 seldom can damage the weather proof type runway with footwear pavement material.

In Fig. 5 to Fig. 8, second example of the present invention is shown.Fig. 5 is the longitudinal section (side of shoe tack 11 is shown in addition) that second example of the present invention is shown; Fig. 6 installs the longitudinal section that the part of tool is cut open for the shoe tack that will use in this second example; The longitudinal section that Fig. 7 cuts open for the part of the cover piece that will use in this second example; Fig. 8 is the cutaway view of the VIII-VIII line along Fig. 5.

In Fig. 5 to Fig. 8, shoe tack 11 is made of base portion 12, flange part 13 and claw 14.The base portion 12 of shoe tack 11 is such as being cylindric, and flange part 13 is integrally formed with base portion 12.

On the periphery of flange part 13, be formed with concavo-convex rag 13a, form front end face 15 (suitable) with aforesaid front end face 5 at the front end of claw 14.Form recess 16 (suitable) with aforesaid recess 6 in the back of base portion 12 in order to form claw 14.In addition, 17 is central shaft on the longitudinal direction of shoe tack 11.

Tool 21 is installed is formed by hard resin, metal or pottery etc., through hole 24 is formed on the bottom 23 of its cylindrical portion 22.On cylindrical portion 22 inner surfaces, form negative thread 22a and concavo-convex rag 22b, form flange part 25 in the outside of cylindrical portion 22.On flange part 25, form through hole 25a, 25b.

Cover piece 31 is that approximate circle is tabular, forms pin thread 33 on the periphery 32 of cover piece 31, and forms through hole 36 between a side surface 34 and the opposing party's surface 35.Die nut rotates cover piece 31 among can inserting through hole 36.

Tool 21 is installed to be imbedded among the sole 41.In addition, shoe-pad 42 is bonded on the inner surface of sole 41.

As shown in Figure 8, the concavo-convex rag 13a of the flange part 13 of shoe tack 11 can be embedded in the rag 22b of the cylindrical portion 22 that tool 21 is installed.Under the state that flange part 13 is thrown off from the cylindrical portion 22 that tool 21 is installed, make flange part 13 just can change the chimerism (chimeric position) of rag 13a and rag 22b by the counter-rotation of arrow 18 directions or arrow 18, thereby shown in Figure 10 as described later, change direction by the shoe tack 11 that tool 21 installations are installed.

Fig. 9 is the variation of above-mentioned second example of explanation.In Fig. 9, in shoe tack 51, base portion 52 (such as cylindric) is integrally formed with flange part 53, on the periphery of flange part 53, form concavo-convex rag 53a, front end at base portion 52 forms claw 54, form front end face 55 (suitable) at the front end of claw 54, form recess 56 (suitable) in the back of base portion 52 with aforesaid recess 6 for forming claw 54 with aforesaid front end face 5.In addition, 57 is central shaft on the longitudinal direction of shoe tack 51.

On the inner surface of the cylindrical portion 62 that tool 61 is installed, form negative thread 62a and concavo-convex rag 62b, form base plate 63 in the end of cylindrical portion 62.On the outer surface of cylindrical portion 62, form flange part 65 (suitable), on flange part 65, form through hole 65a, 65b with aforesaid flange part 25.On the periphery 72 of endless member 71, form pin thread 73, and form the one side 74 of perforation endless member 71 and the through hole 76 of another side 75.

On above-mentioned another side 75, form in the not shown recess (or hole, ditch) and can insert metal bar etc., utilize this metal bar etc. that endless member 71 is rotated, make pin thread 73 and negative thread 62a interlock tighten up (or unclamping).

With the rag 13a of the flange part 13 of shoe tack 11 with rag 22b chimeric the same of the cylindrical portion 22 of tool 21 is installed, the rag 62b of the rag 53a of the flange part 53 of above-mentioned shoe tack 51 and installation tool 61 is chimeric.Tool 61 is installed and tool 21 the same imbedding within the sole are installed.

In above-mentioned second example, because insert shoe tack 11 from the cylindrical portion 22 that tool 21 is installed, the base portion 12 of shoe tack 11 and claw 14 are outwards outstanding from the through hole 24 of base plate 23, and the same with above-mentioned Fig. 4, the base portion 12 of shoe tack 11 and claw 14 can penetrate in the ground (ground plane) 81 when running.

By being spirally connected of pin thread 33 and negative thread 22a, utilize 31 pairs of shoe tacks of cylindrical portion 22 and cover piece 11 pressurization and fix, can avoid shoe tack 11 owing to external impact is unclamped.Even it is in variation as shown in Figure 9, same because cylindrical portion 62 and endless member 71 can make shoe tack 51 avoid unclamping because of external impact.

Usually, rearward pedal the direction on ground on the ground 81 of running shoes ground connection, promptly opposite, rear angle (when running with pedal the place between angle), on have certain individual differences.

But, the installation tool 21 of bottom before running shoes are imbedded in utilization, 61 install shoe tack 11, when 51, can be that rotation is gone up along circumferential direction (direction of the arrow 18 in Fig. 8 or the opposite direction of arrow 18) in the center with the central shaft on the longitudinal direction 17,57 with shoe tack 11,51 on one side, regulate on one side recess 16,56 towards and running shoes heel direction between angle.

Figure 10 illustrates left foot each adjusting position with the shoe tack of installing in the footwear 11.In addition, the figure of each among Figure 10 is suitable with content shown in Figure 3.

(X is the place ahead with respect to the center line X-Y on the sole longitudinal direction of the central point of the central point of the tiptoe portion of the preceding bottom that connects running shoes and heel, Y is the rear), the orientation (direction of arrow 11x) of shoe tack 11 recesses 16 of position 11a is regulated and can be made it inside, and the orientation (direction of arrow 11z) of shoe tack 11 recesses 16 of position 11c is regulated and can be made it outside.On the other hand, the orientation (direction of arrow 11y) of shoe tack 11 recesses 16 of position 11b is regulated and can be made it parallel with center line X-Y.

In addition, if can regulate as the orientation to the recess 56 of the recess 16 of shoe tack 11 and shoe tack 51 as shown in Figure 10, it is also passable that cylindrical portion 22,62 is made the tube portion that is not cylinder.

Therefore, when running according to each individual who wears running shoes pedal local to difference, the orientation that the chimeric position of the rag 53a of the chimeric position of the rag 13a of flange part 13 that can be by regulating shoe tack 11 and the rag 22b of cylindrical portion 22 and the flange part 53 of shoe tack 51 and the rag 62b of cylindrical portion 62 makes recess 16,56 is pedaled the place to consistent during with above-mentioned running.Therefore and since each running shoes user just can according to its pedal recoil motion bring into play propulsive force when running to greatest extent, thereby can improve the speed of running.

As mentioned above, shoe tack that the present invention relates to and the sports and competitions with this kind shoe tack help improving the speed of running with footwear in each side such as contest, and, favourable to the maintenance of runway.

Claims

1. shoe tack, it is characterized in that, on the front of shoe tack base portion (2), form claw (4), the front end of this claw (4) is trapezoidal, begin to be provided with recess (6) to the rear lateral portion of above-mentioned base portion (2) from above-mentioned claw (4), this recess (6) is longitudinal direction (7) bending of shoe tack (1) relatively.

2. sports and competitions footwear, it is characterized in that, front end at the base portion (12) of shoe tack (11) is formed with claw (14), front end at this claw (14) forms trapezoidal, the longitudinally (17) of the rear lateral portion from above-mentioned claw (14) to above-mentioned base portion (12) is provided with bend (16), be formed with flange part (13) in the upper end of above-mentioned base portion (12), on the periphery of this flange part (13), be formed with concavo-convex (13a), be fixed in the sole (41) by having the shoe tack installation tool (21) that can make this concavo-convex (13a) to be embedded in the tube portion (22) among concavo-convex (22b) that is provided with on its inner surface, can be by changing the direction that above-mentioned chimerism changes above-mentioned recess (16).