KR20020095465A - Cleat for golf shoes - Google Patents

Abstract

A cleat 10 for use in golf shoes is disclosed. The cleat 10 comprises a cleat body 3, a fastening means 4 and a plurality of long legs 1 and a plurality of short legs 2. The long legs 1 and the short legs 2 are alternately provided on the cleat body 3. The long leg 1 protrudes outwards from the cleat body 3 at an angle in the range of 70 ± 15 ° to an imaginary plane perpendicular to the central axis of the cleat. The long leg 1 is rigid enough to penetrate the grass while the short leg 2 presses the grass. Cleats having voids between the long and short legs effectively entangle the long legs 1 and the short legs 2 as the grass leaves and stems enter the voids to provide excellent grip on the grass.

Description

Cleats for golf shoes {CLEAT FOR GOLF SHOES}

Tack type sharp metallic spikes are commonly used in golf shoes. Metallic spikes provide satisfactory grip and bite on the turf or turf, but metallic spikes will damage the grass to the roots. Sharp metallic spikes are somewhat uncomfortable to wear, especially on hard surfaces such as asphalt roads. These will damage the club's floor.

Plastic cleats have been developed to alleviate the above-mentioned problems with metallic spikes. However, conventional plastic cleats do not provide satisfactory grip or bite on the grass because they do not effectively entangle with grass leaves and stems.

Japanese Patent Laid-Open No. 11-262401 teaches the plastic cleat 30 shown in FIG. 12 attached to this specification, which includes a screwed shaft 31 and a plurality of flexible legs 32.

Although the plastic cleat 30 hardly damages the floor of the turf or golf range, the cleat 30 cannot fully support the weight due to the structural warpage of the leg 32. The leg 32 will be open or completely deformed outward and will lose grip on the turf. The cleat 30 provides uncomfortable elasticity and instability to the wearer on a hard surface. The cleats 30 wear quickly without providing structurally good wear resistance. On the other hand, if the strength of the leg 32 is enhanced, the cleat 30 will damage the putting green.

Accordingly, it is an object of the present invention to provide a cleat that provides satisfactory grip and bite on grass or turf by effectively tangling with grass leaves and stems.

Another object of the present invention is to provide a cleat that will not damage the floor of the turf or turf or golf practice ground.

In addition, other objects of the present invention will become apparent from the following detailed description.

The present invention relates to cleats. More specifically, the present invention relates to golf shoes cleats that provide excellent grip and bite on grass or turf without damaging the turf or turf. The invention also relates to a method of economically producing plastic cleats.

1 is an exploded view of a cleat according to an embodiment of the present invention;

FIG. 2 is a side sectional view showing the fixing means of the cleat shown in FIG. 1; FIG.

3 is a side cross-sectional view of a cleat having screwed fastening means in accordance with another embodiment of the present invention;

4 is a side cross-sectional view showing a state in which the long legs of the cleats shown in FIG. 2 are deformed outward;

5 is a bottom view of the cleat shown in FIG. 1;

FIG. 6 illustrates an embodiment in which the cleat of FIG. 1 is actually used on a sole; FIG.

Figure 7 illustrates a "forced extraction molding" process of the present invention;

8 is an exploded view of a cleat according to a second embodiment of the present invention;

9 is an exploded view of a cleat according to a third embodiment of the present invention;

10 is an exploded view of a cleat according to a fourth embodiment of the present invention;

11 is an exploded view of a cleat according to a fifth embodiment of the present invention;

12 is an exploded view of a conventional plastic cleat.

* Brief description of the main parts of the drawing

1 ... long legs 2 ... short legs

3. Cleat body 4. Fixing means

5 ... Center projection 6 ... Through groove

7 ... engagement projections 8 ... engagement teeth

10 ... cleats

Hereinafter, a summary of the claimed features for the purpose of helping the present invention.

According to one aspect of the invention, a cleat including a plurality of long legs and a plurality of short legs disposed along the outer circumferential surface of the cleat body is provided. The number of long and short legs is generally the same and the long and short legs are generally provided on the cleats alternately. However, according to one aspect of the present invention, the short legs can be eliminated at all.

It will be appreciated that the number of long and short legs need not be the same, and that more legs may be used on the cleats than short legs, or more short legs than long legs may be used on the cleats. As used herein, the term "alternatively" means that different numbers of long and short legs are alternately arranged along the outer circumference of the cleat, providing one or more long legs between two adjacent short legs or two One or more short legs may be provided between adjacent long legs. It is also desirable that long and short legs be provided along the outer circumferential surface of the cleat or along the cleat body, but long and short legs may be located off the outer circumferential surface in certain design arrangements, for example, some short legs may be centered on the cleat. It will be appreciated that it may be placed closer to.

Cleat 10 according to the claims includes a cleat body 3 and a plurality of long legs 1 and a plurality of short legs 2 which are generally provided alternately on the cleat body 3. The long leg 1 can penetrate into grass or turf and entangle with grass leaves and stems. The long leg 1 is provided at an angle within the range of 70 ° ± 15 ° with the sole (with cleat 10 mounted thereon) gradually opening outwardly from the cleat body. The short leg 2 supports the weight while pressing the grass downward. The long leg 1 and the short leg 2 are provided along the outer circumferential surface of the cleat 10.

The angle between the imaginary lines perpendicular to the axes of the cleat 10 and the long leg 1 is preferably 57-77 ° (67 ± 10), more preferably 65-75 ° (70 ± 5) and most preferably 62-72 ° (67 ± 5).

The legs 1,2 are generally provided integrally on the cleat body 3. The cleat 10 or cleat body 3 is integrally secured to the sole or detachably secured by a securing means. The cleat body 3 may take any form, such as substantially circular, elliptical, triangular, square or other polygonal shapes.

In addition, the cleat body 3 may be provided with a central protrusion 5. The central protrusion 5 will support the long leg 1 and the short leg 2 while supporting the weight remaining on the cleat 10. As measured from the cleat body 3, it is preferred that the central protrusion 5 is the same size as the long leg 2.

The cleat 10 may be made of any suitable plastic material, such as synthetic rubber material, ABS material, polycarbonate material or nylon material. Polyurethane materials are preferred.

The long leg 1 and the short leg 2 can be provided in different plastic materials, and the flexible material can be used for the long leg 1 and the rigid and wear resistant material for the short leg 2. Soft type metallic materials or ceramic materials may optionally be used, or may be introduced completely or partially.

Although it is preferable to use plastic materials and exhibit a number of advantages, metallic or ceramic materials may also be used. A plurality of these materials can be used to provide the compound-type cleat 10 of the present invention.

The cleat 10 according to the claims provides a large gap in the bottom of the cleat body 3 with a length difference between the long leg 1 and the short leg 2, thus providing excellent grip and bite on the turf or turf. The long leg 1 penetrates the turf and the short leg 2 presses the turf hard portion from above. The long leg 1 and the short leg 2 are effectively entangled with the grass leaves and stems. Note that the long leg 1 is not long enough to penetrate the ground below the turf or turf ground. Thus, the long leg 1 does not bump the putting green.

Cleat 10 according to another claim also includes cleat body 3 and a plurality of long legs 1, a plurality of short legs 2. In use, short leg 2 squeezes the turf hard portion and securely supports the grass bottom by friction between turf and short leg 2 while long leg 1 penetrates the grass without bending over the turf.

The long leg 1 is designed to bend on the hard surface or open outwardly to sufficiently absorb the physical impact from the hard surface, thereby desirably alleviating the physical impact that would otherwise be transmitted to the wearer's knees or waist.

Cleat 10 according to the claims can also provide good grip and bite on the turf. The long leg 1 penetrates through the turf and the short leg 2 presses the turf hard portion.

Cleat 10 according to another claim provides a large void especially between long leg 1 and short leg 2.

Grass blades and stems are collected into large voids created between the long legs 1 and the short legs 2 and tight between the legs 1 and 2 to provide excellent grip. The voids between the legs 1,2 can be provided as shown in FIG. 10 or as shown in FIGS. 1 and 8, where the grass leaves and stems are concentrated in the bottom center of the cleat body 3 To entangle the grass leaves and stems. The voids should be large enough not to be blocked by the mud.

Cleat 10 according to another claim has a long leg 1 that is rigid enough to penetrate substantially into grass without deformation. The leaves and stems of the grass collect in the large voids created between the long legs 1 and entangle with the long legs 1 to provide excellent grip.

Cleat 10 according to another claim has a long leg 1 and a short leg 2, both of which are rigid enough to not bend on the turf when in use. The long leg 1 penetrates the turf and the short leg 2 presses the turf hard portion. The grass leaves and stems are collected in the voids created between the long leg 1 and the short leg 2 and entangled with the long leg 1 and the short leg 2 to provide excellent grip and bite on the grass.

The long leg 1 is mounted on the cleat 1 and has an angle in the range of 70 ± 15 ° with the sole to provide sufficient grip and bite on the inclined grass surface.

Cleat 10 according to another claim may be used alternatively. The cleat 10 is further provided with fastening means 4 having engaging means 7 such that the cleat 10 is detachably mounted to the golf shoe sole. The fastening means 4 may simply be present on the screwed shaft to be screwed into the screwed container means. The securing means 4 can be reinforced with metallic pins. The cleats 10 can replace worn cleats 10 with new ones.

Cleat 10 according to another claim is made detachable from the sole, which is provided with long leg 1 and short leg 2. At least one of the long leg 1 or the short leg 2 provides the gripping force and biting force on the turf by providing a groove 6 on its free end. The groove 6 also becomes a replacement indicator or wear indicator that indicates when to replace the cleat 10 with a new one.

Optionally a central protrusion 5 is provided. The height of the central protrusion 5 is provided substantially equal to the maximum depth of the groove 6. The central protrusion 5 starts to contact the surface to support the weight as the wear of the legs 1,2 progresses. The central protrusion 5 can proceed the wear of the legs 1,2 sufficiently slowly. Groove 6 will also assist in creating cleat 10 by the "force extraction molding" described below.

Cleat 10 according to another claim has a long leg 1 that can be flexed outwardly from the hard surface in use to coincide with leg 2 with a short axial height to effectively absorb physical impacts from the hard surface. The weight remaining on the cleat 10 phase will be divided into both the long leg 1 and the short leg 2 which are curved. The wear of long legs on hard surfaces will effectively and slowly proceed.

For cleat 10 according to another claim, the number of long legs 1 and short legs 2 is limited to 3-5. The number of long legs 1 and short legs 2 may not be the same and may be different.

Depending on the design of legs 1,2, including the strength, thickness and length of the materials used, the number of long legs 1 may be substantially selected from 2-8, and the number of short legs 2 may also be substantially 2-8. Can be selected from.

The long legs 1 need not be provided at regular intervals along the outer circumferential surface of the cleat body 3, and the short legs 2 need not be provided at regular intervals along the outer circumferential surface of the cleat body 3.

The gripping force of the cleat 10 is provided in the same direction as shown in Fig. 5, where the gripping force is larger in the A direction and relatively weak in the B direction.

The carefully calculated number of cleats 10 is mounted on the sole in a calculated manner including the direction to provide the best grip and bite on the turf. In addition, by providing conventional protrusions and / or teeth on the sole, additional gripping and biting forces will be provided.

One claim defines a method for making cleat 10 of the present invention by “forced extraction molding”. As used herein, a "forced extraction molding" is forcibly pushed out of the mold through the "narrow" extraction opening of the mold before the plastic material is fully cured in the mold, and the forcibly pushed plastic material is pushed out of the mold. It refers to a plastic molding process that is carried out under conditions that gradually return to the design structure as it is fully cured.

A gap provided between the long leg 1 and the short leg 2 may assist the forced extraction molding. The radial grooves 6 provided on the long leg 1 or the short leg 2 will also assist to some extent forced extraction molding.

To facilitate forced extraction molding, the sole angle on which the long legs 1 and cleats 10 are mounted is preferably about 67 ° (exactly 66.9 °), but other angles within the 45-90 ° range will be equally available.

Suitable plastic material, such as polyurethane material, is inserted into the cleat mold with a "narrow extraction opening." The width of these narrow extraction openings is narrower than the maximum width of the cleat 10 to be molded. When the material is half cured in the mold, the material is forced out of the mold with pin means through the narrow extraction opening of the mold. Somewhat "deflated" or "deformed" material gradually recovers and returns to its original form unless the contraction or deformation is "excessive."

The "forced extraction molding" has a relatively low manufacturing cost for producing a "simple" mold for forced extraction molding and a very simple manufacturing process, thereby relatively reducing the manufacturing cost.

Testing conducted by the Applicant has shown that cleat 10 of the present invention provides grip and bites comparable to metallic spikes.

The test was performed as follows. A plurality of cleats 10 and a plurality of conventional metallic spikes prepared by the present invention were fixed on the heavy metal plate, respectively. These metal plates were pushed on an artificial turf. The force required to move the plates was measured and compared.

Further, abrasion test was performed. The cleats 10 of the present invention and ordinary plastic cleats were placed on sandpaper and lined in the form of "8" while adding weight (1 kg) on the sandpaper to observe and compare wear.

Abrasion testing has shown that cleats 10 of the present invention have superior wear resistance compared to conventional plastic cleats.

The cleat 10 produced by the present invention provides excellent wear resistance and grip resistance without damaging the floor of a turf or a turf or golf practice range and effectively absorbs physical impacts from hard surfaces.

1 is a view showing a cleat 10 including a cleat body 3 and a fixing means 4 according to a first embodiment of the present invention. From the cleat body 3 four long legs 1 and four short legs 2 were extended downward. Long legs 1 and short legs 2 were alternately provided along the outer circumferential surface of the cleat body 3. A central protrusion 5 was also provided below the cleat body 3. Such cleats 10 are integrally manufactured by the "forced extraction molding" of the present invention.

The fastening means 4 was provided with an engagement protrusion 7 which engages with an engagement groove (not shown) provided in a container (not shown) provided in the container of the sole (not shown). Two engagement teeth 8 were provided under the cleat body 3 to be engaged and rotated by handle means (not shown) to provide engagement between the engagement protrusion 7 and the engagement groove. A metallic pin (not shown) is introduced into the securing means 4 to reinforce the engagement portion.

The long legs 1 do not bend on the grass, but when used on hard surfaces they are provided with the same thickness and stiffness as the short legs 2, while the short legs 2 bend on both grass or hard surfaces. It is offered in unsurpassed thickness and stiffness. As described above, when bent on a hard surface, the long leg 1 is substantially the same shaft length as the short length 2 to support the weight remaining in the cleat 1 together.

In this example, each rigid leg 2 was provided with a groove 6 on its free end. The groove 6 becomes a wear indicator to be replaced by a new cleat 10.

The central protrusion 5 was provided at the same depth as the maximum point of the groove 6. The central protrusion 5 supports weights not supported by the long legs 1 and the short lengths 2.

The short leg 2 squeezes the turf hard portion while the long leg 1 provided at an angle of about 67 ° to the vertical imaginary plane about the central axis of the cleat 10 penetrates the turf. Grass pieces or leaves or stems enter the voids of cleat 10 created between long leg 1 and short leg 2 and entangle with legs 1 and 2, providing excellent grip and bite. Therefore, damage to the grass as well as damage to the carpet of the golf practice range can be kept to a minimum.

The voids provided between the legs 1,2 should be large enough to prevent blockage by mud or grass chips. Thus, the gripping by the cleat 10 can be provided without failure. The physical impact from the hard surface will be sufficiently absorbed by the bending of the long leg 1. Furthermore, the cleats 10 provide safety on some hard surfaces thanks to the majority of the contact points with hard surfaces.

8 also includes a cleat body 3, a securing means 4 (not shown), three regularly distributed long legs 1 and three regularly distributed short legs 2, and a central protrusion 5 according to a second embodiment of the present invention. It is a figure which shows the cleat 10 formed. The cleat 10 further comprises a central protrusion 5. These cleats 10 were also prepared by "forced extraction molding".

In one embodiment, the securing means 4 is provided with three regularly distributed engagement projections 7 (not shown). The handle means (not shown) engage with the two engagement teeth 8 provided on the lower side of the cleat body 3 to rotate the engagement projections 7 in the engagement grooves (not shown) made in the container (not shown) in the sole (not shown). Meshes with. The fastening means 4 was reinforced with metallic pins (not shown).

The long leg 1, provided at an angle of about 67 ° to the imaginary plane perpendicular to the central axis of the cleat 10, is rigid enough to penetrate through the grass and bends outward on a hard surface to provide the same flex length as the short leg 2 .

The short leg 2 is provided shorter and thicker than the long leg 1 and supports the weight remaining on the cleat 10 with the long leg 1 bent and rigid enough to maintain its shape on the hard surface. Each rigid leg 1 was provided with a groove 6 on its free end.

The central protrusion 5 was provided with the same axial length as the maximum depth of the groove 6 of the short leg 2.

The cleat 10 has a wider gap between the legs 1 and 2 of this embodiment, thus providing improved prevention of clogging of the legs 1 and 2 gaps than the cleats of the previous embodiment. For the same reason, when the cleats are pushed out of the narrow extraction opening of the mold, the legs 1,2 are given a larger leeway so that they are pushed towards the middle of the cleat body 3, which is easier than the previous embodiment cleats 10. Cleat 10 may be forcibly extracted from a mold (not shown).

9 is a view showing another third embodiment of the present invention. The long leg 1 in this example was provided with two radial grooves 6 instead of two short legs.

Four legs 1 are provided to be rigid enough not to bend on the grass and to be flexible to bend on the hard surface, while the four short legs 2 are provided to be rigid not to bend on the hard surface. Groove 6 on the long leg 1 gave the grass another grip and bite. The central protrusion 5 was provided with the same axial length as the maximum depth of the groove 6.

10 is a view showing cleat 10 according to a fourth embodiment of the present invention. These cleats 10 are provided in three long legs 1 and three short legs 2. Groove 6 is provided on two short legs. As shown, ribs R were further provided on the bottom side of the cleat body 3, extending from the long leg 1 and the short leg 2 to the central protrusion 5, respectively. These ribs R provide additional grip and bite on the turf.

Cleat 10 according to another fifth embodiment of the present invention is shown in FIG. At this time, the central protrusion 5 is not provided. Ribs R were provided to connect two long legs 1, respectively. These ribs R provide additional grip or bite to the turf as well as additional strength or stiffness for the cleats 10.

While the invention has been described in terms of a number of embodiments, many modifications and variations are possible without departing from the spirit of the invention.

The cleats 10 of the present invention may be made of a non-plastic material, such as a metallic material or a ceramic material, or the cleats 10 may be made of a plastic material of a very rigid type so that the long leg 1 does not bend on the hard surface. Since the important idea of the present invention is in the shape of the cleats themselves, the material from which they are produced is not so important.

The central protrusion 5 can be eliminated from the embodiment described above including the central protrusion 5. The cleats 10 will provide excellent grip and bite on the turf or turf without damaging the turf or turf.

Claims (10)

A cleat body and a plurality of long legs and a plurality of short legs, The long and short legs are alternately provided on the cleat body, The long legs project outward from the cleat body at an angle in the range of 70 ± 15 ° to an imaginary plane perpendicular to the central axis of the cleat, The long leg cleats for golf shoes, characterized in that the short leg is rigid enough to penetrate the grass while pressing the grass. A cleat body and a plurality of long legs and a plurality of short legs, The long and short legs are alternately provided on the cleat body, The long legs project outward from the cleat body at an angle in the range of 70 ± 15 ° to an imaginary plane perpendicular to the central axis of the cleat, The long leg is rigid enough to penetrate the grass while the short leg presses the grass, Both the long legs and the short legs are cleats for golf shoes, characterized in that they are rigid enough to maintain their shape on the turf when used. A cleat body and a plurality of long legs and a plurality of short legs, The long and short legs are alternately provided on the cleat body, The long legs project outward from the cleat body at an angle in the range of 70 ± 15 ° to an imaginary plane perpendicular to the central axis of the cleat, The long leg is rigid enough to penetrate the grass while the short leg presses the grass, Cleats for golf shoes, characterized in that the gap between the long leg and the short leg is provided to collect grass leaves or stems A cleat body, and a plurality of long legs provided on the cleat body, The long legs project outward from the cleat body at an angle in the range of 70 ± 15 ° to an imaginary plane perpendicular to the central axis of the cleat, The long legs are rigid enough to penetrate the grass, Cleats for golf shoes, characterized in that the gap between the long legs is provided to collect grass leaves or stems A cleat body and a plurality of long legs and a plurality of short legs, The long and short legs are alternately provided on the cleat body, The long legs project outward from the cleat body at an angle in the range of 70 ± 15 ° to an imaginary plane perpendicular to the central axis of the cleat, The long leg is rigid enough to penetrate the grass while the short leg presses the grass, The long and short legs are rigid enough to retain their shape on the grass when used. Cleats for golf shoes, characterized in that there is a gap between the long legs and short legs to collect grass leaves or stems A cleat body, a fixing means provided on the cleat body, and a plurality of long legs and a plurality of short legs, The long legs and short legs are alternately provided on the cleat body, The long legs project outward from the cleat body at an angle in the range of 70 ± 15 ° to an imaginary plane perpendicular to the central axis of the cleat, The long legs are stiff enough to penetrate the grass while the short legs squeeze the grass. The long and short legs are rigid enough to retain their shape on the grass when used. A cleat detachably provided on the golf image, characterized in that a gap exists between the long legs and the short legs to collect grass leaves or stems. A cleat body, a fixing means provided on the cleat body, and a plurality of long legs and a plurality of short legs, The long and short legs are alternately provided on the cleat body, The long legs project outward from the cleat body at an angle in the range of 70 ± 15 ° to an imaginary plane perpendicular to the central axis of the cleat, The long leg is rigid enough to penetrate the grass while the short leg presses the grass, The long or short legs are each provided with at least one groove on its free end, A cleat detachably provided on the golf image, characterized in that a gap exists between the long legs and the short legs to collect grass leaves or stems. The cleat according to any one of claims 1 to 3 and 5 to 7, wherein the long leg is sufficiently flexible to bend outward when used on a hard surface, so that the cleat has the same shaft length as the short leg. The cleats according to any one of claims 1 to 3 and 5 to 7, wherein the number of long legs and short legs is 3-5, respectively. A cleat body, a securing means provided on the cleat body, and a plurality of long legs and a plurality of short legs, Wherein the long and short legs are alternately provided on the cleat body, the long legs protrude outward from the cleat body at an angle in the range of 70 ± 15 ° to an imaginary plane perpendicular to the cleat's central axis. A leg is a method of making a cleat that is detachably provided on a golf image that is rigid enough to penetrate the turf while the short leg presses the turf. The method is Preparing a mold having an extraction opening that is narrower than the maximum width of the cleat, Wherein the angle of the long leg is within the range of forcibly extracting the cleat from the mold through the narrow extraction opening and then restoring it to the designed structure: Inserting the plastic material into the mold and curing the plastic material in the mold about half; Forcibly extracting the half cured plastic material from the mold through an extraction opening: and Restoring the designed structure of the cleat as the extracted plastic material is completely cured outside the mold; the cleat manufacturing method detachably provided to the golf image comprising the