JP2001204509A - Friction tool and related technique therwith - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an inserting part from being clogged with foreign matter and surely remove a friction body from a holding body. SOLUTION: An upper part of a holding body side fitting part 18a in a holding part 18 is defined as a truncated cone-shaped inner peripheral surface part 18c reduced in diameter on the lower side. A lower end part of the truncated cone-shaped inner peripheral surface part 18c is defined as an annular falling prevention projecting part 18d projecting in the radially inward direction. At a lower end part of a falling prevention piece 12c capable of elastically bending in a friction body 16, a falling prevention recessed part 12c1 which can be fitted into the falling prevention projecting part 18d and is opened outward is formed. At positions on the radial direction outside of both the falling prevention pieces 12c in a friction part 14, each inserting part 28 is formed in the vertical direction. A lower part of each inserting part 28 is opened and an upper part is closed by a closing part 30. By sufficiently inserting an inserting body into the opened inserting part 28 from the upper side, fitting of the falling prevention recessed part 12c1 into the falling prevention projecting part 18d is released.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a friction device for slipping a golf shoe sole and other articles such as shoe soles or preventing wear of the shoe soles, and more particularly, a friction member detachable from a holder. A friction tool that can reliably remove the
The present invention relates to a friction body for a friction tool and footwear.

[0002]

2. Description of the Related Art Conventionally, spikes made of metal or ceramics have been used as slippers for golf shoes, which are examples of friction tools. In order to improve wear comfort, slippers made of synthetic resin have been increasingly used. Since such a synthetic resin non-slip device is more susceptible to abrasion than a metal non-slip device, a metal or synthetic resin external thread portion is protrudingly provided on the back side of the non-slip device, and a metal non-slip portion is screwed therewith. By providing the female screw portion of the present invention on the bottom of the golf shoe, the non-slip device is configured to be removable.

[0003] However, in the conventional mounting and dismounting of the non-slip device, it is necessary to rotate the non-slip device as much as necessary using a mounting and dismounting tool for rotating the non-slip device. The operation of securely attaching and detaching all of the many non-slip devices of the golf shoes of the present invention with screws is complicated. Of course, if both the male and female threads are made of metal, they will become rusted over a long period of use and will not turn, making removal impossible or difficult. Can cause When the external thread is made of a synthetic resin, the external thread or the external thread shaft is broken by the degree of tightening at the time of screwing, and the slipper comes off during use without being sufficiently fixed and held by the screw. Things can happen. Furthermore, if both the female screw portion and the male screw portion are made of synthetic resin, the screws are likely to be loosened or easily tightened, or one or both screws may be broken by tightening and tightening, and the slip stopper may not be sufficiently fixed and held. , It is impossible.

[0004] In order to solve these problems, the inventor of the present invention holds the friction body by fitting the friction body to a holding body fixed to the shoe sole or the like, and inserts the insertion body sufficiently into the insertion portion. Thus, a friction tool which does not use a screw mechanism and which can release the fitting and holding is invented.

[0005] However, this friction tool has a problem that, when used for footwear or the like, foreign matter such as sand particles may be clogged in the insertion portion and it may be difficult to release the fitting by inserting the insert. Found to have.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems in the prior art, and has as its object to prevent foreign matter from being clogged in the insertion portion and prevent the insertion portion from being caught from the holder. It is an object of the present invention to provide a slipper for footwear, a friction body for a friction tool, and footwear capable of reliably removing the friction body.

[0007]

Means for Solving the Problems (1) A friction tool of the present invention has a holding body and a friction body held by the holding body, and the friction body is held by the holding body. A friction tool having a friction portion that generates a frictional force between the frictional object and the frictional object by being in contact with the frictional object in a state, wherein the holding body-side fitting portion and the frictional body-side fitting portion that are fitted to each other, When the friction body-side fitting portion is fitted to the holding body-side fitting portion, the holding body side fitting portion and the friction body side fitting portion have a relative position between the two in a direction orthogonal to the fitting direction. It is provided with a lateral support mechanism capable of preventing movement, and a retaining recess, and a retaining protrusion that can be fitted into the retaining recess in a state where the holding body side fitting portion and the friction body side fitting portion are fitted.
One of the retainer concave portion and the retaining protrusion is biased in a direction in which it can be fitted into the other, and the retaining concave portion and the retaining protrusion are provided. The shape can be fitted when the frictional body side fitting portion moves relative to the holding body side fitting portion in the direction in which the friction body side fitting portion fits, and has a shape in which the fitting is not released when the friction body side fitting portion relatively moves in the opposite direction, The friction body has one or two or more insertion portions into which an insertion body for releasing the engagement between the retaining recess and the retaining projection can be inserted, and the insertion portion is closed by a closing portion. The obstruction is
As the friction portion of the friction body is worn to a predetermined extent due to friction with the friction object, the insertion portion is opened to the outside to the extent that the insertion member for disengagement can be inserted from the outside, or The thickness of the closing portion that separates the outside and the inside of the insertion portion so as to be able to penetrate from the outside and insert the insertion body is reduced, and the biased retaining recessed component or the retaining projection is biased, When the insert for disengagement is sufficiently inserted into the insertion portion, the retaining recess and the retaining projection are formed by the force in the opposite direction to the bias received from the insert directly or through another portion. The fitting is released (claims 1 and 11).

When the frictional body-side fitting portion of the friction body is sufficiently fitted to the holding body-side fitting portion of the holding body, the retaining recess forming portion or the retaining projection is urged to slip into the retaining recess. The stop projections are fitted to prevent the fitting between the holding body side fitting section and the friction body side fitting section from being released, so that the friction body is fixedly held by the holding body.

[0009] The lateral support mechanism prevents displacement and inclination of the frictional body side fitting portion with respect to the holding body side fitting portion in a direction orthogonal to the fitting direction. As a result, the friction body is unstablely held by the holding body and cannot exert a sufficient frictional force generating effect, damage or wear occurs on the holding body side fitting portion or the friction body side fitting portion, during use, The holding of the friction body by the holding body is released and the friction body is prevented from falling off.

When the closing portion for closing the insertion portion is worn to a predetermined extent due to the friction between the friction portion of the friction body and the object to be rubbed, the opening portion is sufficiently opened or a thickness separating the outside from the inside of the insertion portion. When the thickness becomes sufficiently thin, the insertion body for releasing the fitting can be inserted from the outside through the opening of the insertion portion or through the outside of the thinned closing portion.

In order to remove the friction body from the holding body, an insert for releasing the fitting is sufficiently inserted into the insertion portion. Thereby, a force in the opposite direction to the bias is exerted from the insert to the biased retaining recessed component or the retaining projection directly or through another portion, and the biased retaining is performed. By moving the concave component or the retaining projection in the direction in which the engagement between them is released, the engagement between the retaining concave and the retaining projection is released, and the friction body can be removed from the holding body.

Until the closing portion is sufficiently worn, since the inserting portion is closed by the closing portion, particles, particles, pieces, etc. of sand, stone, earth, ceramics, metal, synthetic resin, wood, etc. Is clogged to prevent detachment of the friction body from the holding body due to insertion of the insertion body for disengagement into the insertion portion,
It is possible to prevent various projections and other objects on the ground, floor, and the like from being unintentionally inserted into the insertion portion and releasing the engagement between the retaining recess and the retaining projection.

When the closing portion for closing the insertion portion is worn to a predetermined extent due to the friction between the friction portion of the friction body and the object to be rubbed, the insertion portion is sufficiently opened or the outside and the inside of the insertion portion are opened. Since the thickness separating them becomes sufficiently thin,
Indicate the replacement time of the friction body and enable the replacement of the friction body by adjusting the replacement time of the friction body to the time when the insertion body for releasing the fitting can be inserted into the insertion portion due to the wear of the closing part. Can be. By using a material that allows the obstruction to be seen through the obstruction through the obstruction because the thickness separating the obstruction from the outside and the interior of the obstruction is sufficiently small, or in the vicinity of the boundary between the obstruction and the insert. By changing the color, the replacement time can be easily understood.

The attachment / detachment of the friction body to / from the holding body can be performed by a simple operation. It doesn't take time. Therefore, it can be easily attached and detached by women, elderly people, children and the like. In addition, it becomes rusted and difficult to remove due to long-term use like a metal screw, and it does not cause injury or destruction of the non-slip mechanism. The shaft of the screw is broken, and the friction body is prevented from being detached during use without being sufficiently fixed and held by the screw. Also, since both the holding body and the friction body can be made of synthetic resin, it is more effective in reducing the weight of the attached footwear as compared with at least the conventional case where the holding body is made of metal.

The holding body and the friction body can be appropriately formed of synthetic resin, synthetic rubber, metal, ceramics, a combination thereof, or the like.

The holding member is most generally used in a state of being fixed to a shoe sole such as the sole of a golf shoe, but is not necessarily limited to this. It is also possible to fix to other articles. In addition, it goes without saying that a part of various articles may constitute a holding body. For example, it can be used while being buried and fixed in a shoe sole made of synthetic resin or synthetic rubber (for example, a shoe sole, especially an exercise shoe sole such as a golf shoe sole). It can be used by being formed by molding, or by being integrally formed on the base of the shoe sole and exposed to the bottom surface of the shoe sole.

The friction member has a friction portion that generates a frictional force between the friction member and the friction object when the friction member is in contact with the friction object while being held by the holding member.

The friction portion can be appropriately formed of synthetic resin, synthetic rubber, metal, ceramics, or the like, or a combination thereof. The friction part and a normal friction object (for example, the ground made of soil, gravel, stone, rock, plants, etc., the road surface made of concrete, asphalt, stone, etc., the floor made of concrete, synthetic resin, stone, wood, etc., snow Surface, ice surface, etc.) between the frictional object and the other parts of the friction implement of the present invention or the part of the article holding the holder that can come into contact with the frictional object in normal use. May be greater than the frictional force that can act on

The friction portion may be located, for example, at an end of the friction member on the side of the friction member in the fitting direction of the friction member and the holding member. More specifically, in a state where the friction body is held by the holding body fixed to the shoe bottom, the friction portion may be located at a position facing the bottom side of the shoe bottom. As a form of the friction portion, for example, a portion in contact with the friction object is a flat surface or a surface having fine irregularities on the entire surface or a part thereof, or a small protrusion protruding on the side in contact with the friction object (for example, the bottom surface side of the footwear bottom portion). A group having a projection such as a group, a group of projections, a linearly arranged projection, a spiral radially arranged projection, and the like can be given. As the overall shape of the friction portion, for example, a substantially disk-shaped body or the like can be given.

As the synthetic resin for the holding member and the friction member, for example, a nylon resin (for example, 66 nylon resin), a polyurethane resin, a polypropylene resin, an acrylonitrile-butadiene-styrene copolymer resin or the like can be appropriately used.

One of the holding body side fitting portion and the friction body side fitting portion may be a fitting projection, and the other may be a fitting recess. For example, the friction body has a plate-shaped friction portion having a friction surface or a friction or non-slip projection on the front surface side, and a projection-shaped or column-shaped friction body side fitting portion (fitting portion) provided on the back surface side of the friction portion. And the holder has a mortar-shaped inner peripheral surface-shaped or hole-shaped holder-side fitting portion (fitting recess) into which the frictional body-side fitting portion fits. You can also
Further, for example, a columnar holding body side fitting portion (fitting projection) is provided upright on the holding body, and a frictional body side fitting portion (fitting recess) into which the holding body side fitting portion fits is fitted to the friction body. It can also be provided.

For example, when the holder-side fitting portion and the frictional-body-side fitting portion are fitted, the lateral support mechanism is fitted to each other at two or more locations in the fitting direction or continuously in the fitting direction. The outer peripheral portion and the inner peripheral portion, which can be supported in a direction orthogonal to the joining direction, can be configured by providing one of the outer peripheral portion and the inner peripheral portion in the holding body side fitting portion and the other in the friction body side fitting portion. Examples of such a combination of the outer peripheral portion and the inner peripheral portion include an inner peripheral surface and an outer peripheral surface that are rotationally symmetric about a fixed axis, for example, a cylindrical and / or frustoconical or conical inner peripheral surface and an outer peripheral surface. , An inner peripheral surface and an outer peripheral surface of a cross-sectional polygonal shape (for example, a regular cross-sectional polygonal shape), and an inner peripheral surface and an outer peripheral surface of a cross-sectional elliptical shape (however,
In any case, one or more portions in the circumferential direction or the fitting direction may have a discontinuous portion. For example, if the cylindrical inner peripheral surface or the cylindrical outer peripheral surface is discontinuous in the circumferential direction, one or two or more arcuate inner peripheral surfaces or arcuate outer peripheral surfaces that are continuous in the fitting direction are obtained. ) And the like, and a combination of one of the inner peripheral surface and the outer peripheral surface as described above, with the other being replaced with a required number of ridges whose ridge lines are substantially in the fitting direction along the surface. Can be mentioned.

The lateral support mechanism has an inner peripheral curved surface and an outer peripheral curved surface that are rotationally symmetrical about a fixed axis (even if there is a discontinuity in one or more portions in the circumferential direction or the fitting direction). To allow rotation of the friction body about the fitting direction with respect to the holding body, for example, for protection of a stepped portion such as a lawn, suppression of abrasion of the friction portion of the friction body, and the like. Can also. For example, in order to exert a frictional function that is a little more advantageous in playing a game such as golf, it is also possible to mix a material that can rotate and a material that cannot rotate according to the position of the friction tool on the bottom of the shoe.

It is preferable that the friction tool has a fitting direction support mechanism for supporting the fitting depth when the fitting portion on the frictional body side is fitted to the fitting portion on the holding body side so that the fitting depth does not exceed a certain value.

[0025] The fitting direction support mechanism is, for example, in the fitting direction or in the fitting direction when the fitting depth when the friction body side fitting portion is fitted to the holding body side fitting portion becomes constant. It can be configured by providing a support body side support portion and a friction body side support portion that mutually support each other in the direction having the component.

An example of the holding body side support portion and the friction body side support portion is a friction member having a plate-like friction portion having a friction protrusion on a front surface side, and a column-shaped friction body side fitting standing upright on the back surface side of the friction portion. The holding body has a bottomed hole-shaped holding body side fitting portion (fitting recess) into which the frictional body side fitting portion fits. In some cases, the holding body side support portion is an opening peripheral portion of the holding body side fitting portion (fitting concave portion), and the friction body side supporting portion is a friction body side fitting portion (fitting projection portion) on the back surface of the friction portion. ), The friction body-side support portion is the tip of the friction body-side fitting portion (fitting protrusion), and the holder-side support portion is the bottom of the holder body-side fitting portion (fitting recess). Examples can be given. Note that, instead of such a holding body-side support section, a support section mutually supporting the friction body-side support section may be provided on the footwear bottom.

Further, for example, the frictional body side fitting portion (or the holding body side fitting portion) may have a discontinuous portion at one or more portions in the circumferential direction. A fitting projection having a rotating outer peripheral surface having an outer diameter gradually reduced in size, and a holder-side fitting portion (or a frictional body-side fitting portion) are provided on one or more circumferential portions corresponding to the rotating outer peripheral surface. A rotating inner peripheral surface having an inner diameter that may have a discontinuous portion and that gradually decreases toward the rear in a fixed or fitting direction, wherein the outer peripheral surface and the inner peripheral surface are a lateral support mechanism or a lateral support mechanism. Also, a fitting direction support mechanism may be configured (claim 5). The term “rotational outer peripheral surface” refers to a curved surface that is rotationally symmetric about a certain axis, for example, a cylindrical and / or frustoconical or conical outer peripheral surface.

In this case, the friction member can be rotatable around the axis in the fitting direction with respect to the holding member.

Next, the retaining recess may be, for example, one or two or more concaves having a size substantially corresponding to the size of the retaining projection. The groove may be endlessly continuous around the direction in which the groove is fitted. The retaining recess is
It may not have a rising portion on the back side of the retaining recess in the fitting direction.

The retaining projection may be one or two or more projections having a size substantially corresponding to the size of the retaining concave portion. It is also possible to form a ridge that is endlessly continuous around the joining direction. In the case where the lateral support mechanism (or the lateral support mechanism and the fitting direction support mechanism) is constituted by, for example, a cylindrical inner peripheral surface and a cylindrical outer peripheral surface (or a frustoconical inner peripheral surface and an outer peripheral surface). As described above, when the holder-side fitting portion and the friction-body-side fitting portion are fitted to each other and the relative rotation around the fitting direction is allowed, the retainer-side fitting portion is pulled out into the retaining recess regardless of the rotation angle of both. In order that the stopper projections can be fitted, the retaining recesses are endlessly continuous grooves as described above, or the retaining projections are endlessly continuous ridges as described above. It is desirable that However, in this case, the endless shape does not necessarily mean that it is completely endless, and even if there is a discontinuous portion in a part, the retaining protrusion is formed in the retaining recess regardless of the rotation angle of both. Anything that can be fitted may be used.

The urging in the direction that one of the retaining concave component and the retaining projection can be received and fitted into the other is performed elastically, that is, the urging of the retaining concave component and the retaining projection is performed. One may receive an elastic force in a direction that can fit into the other. For example, it may be performed by the elasticity of the retaining projection or the retaining concave component itself, and the retaining projection or the retaining concave component itself may be formed by the elasticity of an elastic member such as a compression spring or a tension spring. It may be performed by elasticity of a portion having a retaining projection or a portion having a retaining concave component (for example, elasticity of a cantilever-shaped portion). Then, for example, the bias in the direction in which one of the retaining concave component and the retaining projection is received and can be fitted to the other is in a state where one of the retaining concave component and the retaining projection is not subjected to external force. May maintain a fixed position and a fixed shape, and may generate elastic force in a direction that can be fitted to the other when subjected to an external force opposite to the direction of fitting to the other, and in another direction. Similarly, even if an external force is applied, a reverse elastic force may be generated. In the fitting state of the retaining recess and the retaining projection, one of the retaining concave forming portion and the retaining projection that is urged in a direction that can be fitted to the other does not receive external force and does not receive the external force. However, a state where no force is exerted can be obtained, and a state where a certain displacement occurs due to the fitting and mutually exerts a force such as a pressing force can be achieved. In any case, the release of the fitting is performed by a predetermined displacement (in the case of the latter, the fixed displacement Larger displacement).

With respect to the retaining recess and the retaining projection,
The shape in which the fitting is not released when the frictional body-side fitting portion is fitted in the holding body-side fitting portion in a direction opposite to the direction in which the frictional body-side fitting portion is fitted, that is, when the relative movement is performed in a direction for releasing the fitting, for example, the fitting is released. It is possible to adopt a shape in which the angle between the direction and the surface of both the retaining recess and the retaining projection that come into contact when the friction body is moved in that direction is an acute angle or a substantially right angle. Further, as the shape that can be fitted when the frictional body-side fitting portion relatively moves to the holding body-side fitting portion in the fitting direction,
For example, it is possible to adopt a shape in which the angle between the fitting direction and the surfaces of both the retaining recess and the retaining projection that come into contact with each other when moving in that direction is an obtuse angle.
Other than this, for example, when relatively moving in the direction to release the fitting, the side urged in the direction that can be fitted to the other of the retaining projection and the retaining concave component is the direction of the biasing force. If it is intended to move to the position, the fit is not released.

For example, the retaining recess is located on the other side (for example, the tip end) of one or more cantilever-shaped portions whose base is located on one side in the fitting direction, and is laterally located (for example, on the fitting side). Direction almost perpendicular to the direction),
In the case where the frictional body-side fitting portion is relatively moved to the holding body-side fitting portion in a relative movement, the cantilever-shaped portion is elastically bent in a direction opposite to the opening direction of the retaining recessed portion, so that the retaining recessed portion is formed. Reaches the position in the fitting direction of the retaining projection, and at least a part of the bending thereof is restored, so that the retaining recess can be fitted to the retaining projection in the direction of the opening, and the retaining recess is formed by the retaining projection. When the insertion member for disengagement is sufficiently inserted into the insertion portion in a state where the insertion portion is fitted to the portion, the cantilever-shaped portion is pressed by the insertion member, and the direction of the opening of the retaining recess is reversed. The fitting between the retaining recess and the retaining projection can be released by elastically bending (claim 3).

The fitting between the retaining recess and the retaining projection is 2
It is desirable to be performed in more than one place.
This is because even if one fitting is released for some reason irrespective of the user's intention, the friction body is prevented from falling off from the holding body.

In addition to the case where the insertion portion is provided only in the friction body,
In some cases, the friction member may pass through the friction member to reach the holding member. The insertion portion penetrates the friction body and reaches the holding body, or a biased retaining concave component or a retaining projection is provided on the holding body, and the holding body side fitting portion and the friction body side fitting are provided. In the case where the friction body can rotate with respect to the holding body around the fitting direction in a state where the mating portion is fitted, the insertion portion is moved between the friction body side and the holding body by the rotation angle of the friction body. There are times when the sides do not match, or when the insertion portion of the frictional body and the biased retaining recessed component or the retaining projection of the holding body coincide with each other. Therefore, in such a case, the rotation angle of the friction body must be adjusted as necessary in order to sufficiently insert the insertion member for disengagement into the insertion portion. At this time, it is convenient to adjust the rotational angle position of the friction member if the position of the insertion portion in the holder is indicated at a position visible from the outside on the holder or the sole of the footwear. The position of the insertion portion can be indicated by any of symbols such as arrows, figures, characters, or the like or a combination thereof, and may be a two-dimensional display using paint or the like, a display using unevenness, or the like.

It is preferable that one of the retaining recessed component and the retaining projection urged in a direction that can be fitted into the other is not provided on the holding body but is provided on the friction body (claim). Item 4). That is, it is desirable that the friction body has a movable part and the holder does not have a movable part. The same applies to the case without the closing portion.

Normally, a holder is fixed to an article such as the sole of a shoe so that the holder cannot be attached or detached. In this case, if the holder is damaged, it is necessary to replace the entire footwear or the like. Since the movable portion generally has relatively low durability, if the movable portion is provided on the holder, it is likely that the entire movable portion of the holder needs to be replaced due to the damage of the movable portion of the holder even if the other portions are not damaged. In this friction tool, the friction body has a movable part,
Since the holder does not have a movable portion, the durability of the entire holder is good. Therefore, an article such as a shoe sole having the holding body fixed in a non-detachable state can be used as long as possible.

Particularly, when the movable state is realized by the elastic property of the material of the retaining concave portion, the retaining projection itself, or the member provided with them, such a material is limited. In general, heat resistance and pressure resistance are relatively low. For this reason, when the holder is inserted into a molding material such as a synthetic resin or a synthetic rubber that forms the sole of the footwear or the like and is molded, relatively large deformation is likely to occur due to heat or pressure during molding. However, since the holding portion of the friction tool does not have a movable portion, a material excellent in physical properties such as heat resistance, pressure resistance, and wear resistance can be appropriately selected and used as the holder.

Further, when the friction body is rotatable around the axis in the fitting direction in a state where the friction body is fitted and held by the holding body, the other of the retaining recess forming portion and the retaining protrusion is provided. Since the friction member has a member (movable portion) and an insertion portion urged in a direction that can be fitted to the friction member, unlike the case where such a movable portion is provided on the holding member and the insertion portion is provided on the friction member, It is not necessary to rotate the friction body in order to adjust the position of the insertion portion at the position of such a movable portion on the holding body.

The insertion portion is closed by a closing portion.
The closing portion wears as the friction portion of the friction body wears to a predetermined degree due to friction with the friction object,
The thickness of the closing portion that separates the inside of the insertion portion from the outside so that the insertion portion opens to the outside to the extent that the insertion body for disengagement can be inserted from the outside or can penetrate from the outside and insert the insertion body can be inserted. Become thin. The closing portion can be formed of a material that is gradually worn by friction with a friction object, for example, a synthetic resin or a synthetic rubber.

It is desirable that the frictional force that can be exerted between the frictional part of the frictional body, which has been worn to the predetermined degree by the friction with the frictional object, with the frictional object is lower than that before the wear. 2).

In this case, when the frictional portion of the friction body wears until the frictional force that can be exerted between the frictional object and the frictional object decreases (for example, the frictional portion wears out until it becomes difficult to exert a sufficient frictional force with the frictional object). The timing), that is, the timing at which the friction body reaches the replacement time, corresponds to the timing at which the insertion of the fitting for releasing the fitting into the insertion portion becomes possible due to the wear of the closing portion. for that reason,
The thickness of the closing portion that separates the inside of the insertion portion from the outside is small enough that the insertion portion is open to the outside or that the insertion body can be inserted by penetrating from the outside so that the insertion body for releasing the fitting can be inserted from the outside. Thus, the replacement time of the friction body is indicated and the friction body can be replaced.

The closing portion may be, for example, one that protrudes in the fitting direction to the same extent as another portion of the friction portion (for example, a non-slip protruding portion such as a protrusion or a ridge). Also, the degree of protrusion in the fitting direction may be small or no protrusion may be provided in the fitting direction.

The closing part can be a part of the friction part. In this case, the closing portion and the friction portion may be integrated, or the closing portion and another friction portion may be separately provided. As an example of the former, there can be cited a case where the closing portion and the friction body are almost uniformly continuous by a continuous flat surface or a surface having a slight unevenness, and the like. Protrusions constituting the protruding portion and protruding portions constituting the closing portion (projections having the same height or lower than the same in the fitting direction of the protruding portion constituting the friction portion and the friction body) are separately provided. In the case, or when the protrusion forming the friction portion protrudes from the base including the closing portion in the fitting direction of the friction body, or the closing portion depressed in the fitting direction of the friction body in the portion forming the friction portion. And the like.
Note that any of the inventions described in the present specification and the drawings can be realized as an invention having no closed portion, that is, an insertion portion that is not closed by the closed portion.

As the shape of the insertion portion, a hole having a circular cross section or a rectangular cross section can be appropriately adopted, and is not particularly limited. The cross-sectional area of the insertion portion (particularly, the cross-sectional area of the insertion port) should be as small as possible. Is preferred. If the obstruction is worn and the insertion section is open, various projections and other objects on the ground or floor may be unintentionally used during use until the friction body is replaced after opening. This is to prevent the occurrence of inconveniences such as disengagement of the retaining recess and the retaining projection due to being inserted into the insertion portion and clogging of the insertion portion.

The insertion portion is configured such that, when the friction member is fitted and held in the holding member, the insertion of the insertion member for releasing the engagement causes the retaining portion to be depressed or the retaining projection to be urged. , A force in a direction opposite to the biasing force is exerted directly or through another portion, and the biased retaining concave component portion or the retaining projection portion can be moved in a direction in which the engagement between the two is released. It must be in position and shape.

The urged retaining recessed component or the urged retaining projection can be directly or through another part by the insertion releasing member inserted into the insertion portion. The following example can be given as a configuration for receiving a force in the opposite direction to the force. That is, for example, in a state in which the retaining protrusion and the retaining concave are fitted, the inserted body inserted into the insertion portion is guided by the holding body side fitting portion or the friction body side fitting portion, and the retaining recess forming portion and In this configuration, one of the retaining projections that is urged in a direction that can be fitted to the other is pressed in a direction opposite to the urging. The insert in this case needs to have some flexibility.

It is necessary that the shape of the insertion member for releasing the fitting is such that it can be inserted into the insertion portion to a sufficient depth. In the case where the two or more urged retaining protrusions or the two or more urged retaining concave component parts are simultaneously fitted into the retaining depressions or the retaining projections, the insertion member for releasing the engagement is provided. Are formed in, for example, a forked shape (or a forked shape or more), and
It is desirable that the above-mentioned urged retaining projection or two or more urged retaining concave component parts can be moved in a direction in which the fitting is released.

(2) In the friction tool of the above (1), the friction portion has a substantially plate-like portion, and the outer peripheral portion of the friction member and the outer periphery of the holder when the friction member is held by the holder. The part may be in pressure contact with the entire circumference.

In order to release the engagement between the frictional body-side fitting portion and the holder-side fitting portion, an insert for releasing the fitting is sufficiently inserted into the insertion portion from the opening, and the retaining projection and the retaining portion are removed. It is necessary to release the fitting of the concave portion. However, fine stone grains,
If sand particles, soil particles, turf, dust, etc. enter between the friction body and the holding body, the retaining recessed component or the retaining projection cannot operate or the insertion member for releasing the fitting into the insertion portion is not inserted. If it becomes impossible, the fitting between the retaining projection and the retaining recess may not be released, or the intruding material may be clogged in the fitting part between the friction body fitting part and the holding body fitting part so that the friction body fitting part There is a possibility that the fitting itself between the and the holding body side fitting portion cannot be released.

In the case of this friction tool, in a state where the footwear is used, that is, in a state where the friction body is held by the holding body fixed to the bottom of the footwear and steps on the ground, the outer circumference of the friction body and the outer circumference of the holding body are changed. Since it is in pressure contact over the entire circumference, it is possible to prevent fine stones and the like from intruding between the friction body and the holding body from the outer peripheral portion thereof, to release the fitting between the retaining projection and the retaining recess and to reduce the friction body side. The engagement between the engagement portion and the holder-side engagement portion can be released with higher certainty.

The reason why the outer peripheral portion of the friction member and the outer peripheral portion of the holder are brought into pressure contact over the entire circumference in a state where the friction member is held by the holder is, for example, the friction member side fitting portion and the holder body fitting portion. It is possible to determine the dimensional relationship so that a compressive force acts between the friction member and the outer peripheral portion of the holding member when the retaining protrusion and the retaining concave portion are fitted by the fitting.

It is preferable that the outer peripheral portions of the holding member and the friction member are pressed against each other at an annular surface portion or a circumferential portion which is rotationally symmetric about the axis of the fitting direction. In the case of the annular surface portion, it may be an annular flat surface portion perpendicular to the axis, an annular inclined flat portion inclined at a fixed angle with respect to the axis, or an annular curved surface portion.

Further, since the outer peripheral portion of the friction member covers the outer peripheral portion of the holding member from the outside, the two members are pressed against each other over the entire circumference, so that fine stones, sand particles, soil particles, turf, dust and the like can be more effectively penetrated. Can be prevented.

When the outer peripheral portion of the friction member is located outside the outer peripheral portion of the holding member, the outer peripheral portion of the friction member is held in a state where the friction member is held by the holding member fixed to the bottom of the shoe. The entire surface may be pressed against the bottom surface of the bottom of the footwear to prevent intrusion of fine stones and sand between the friction body and the holding body. However, in this case, in order to always generate a certain degree of pressure between the outer peripheral portion of the friction body and the bottom surface of the footwear bottom, the accuracy of the positional relationship between the holder and the bottom surface of the footwear bottom must be higher than a certain level. Is required.

(3) In the friction tool of the above (1) or (2), the friction portion of the friction body is made of a relatively soft material, and the retaining recess and the retaining projection are each made of a relatively hard material. Preferably,

By using a relatively soft material (for example, polyurethane resin or the like) for the friction portion, it is possible to prevent damage to a friction object such as a green or a floor of a building, and to improve comfort when used for footwear. The retaining recess and the retaining projection are made of relatively hard materials (for example, nylon resin, metal, etc., and if no elasticity is required, ceramics, etc.), so that they can be used. It is possible to prevent an unexpected force from being applied to release the fitting between the retaining recess and the retaining projection, or prevent the fitting of the retaining recess or the retaining projection from being worn to facilitate release. It is.

(4) The friction tool of the above (1), (2) or (3)
It is preferable that the friction portion of the friction body is made of a relatively soft material, and the friction body-side fitting portion and the holder are each made of a relatively hard material.

In this case, as in (3) above, it contributes to the prevention of damage to the green and the floor of the building, the improvement of comfort, and the like, and an unexpected force acts during use to prevent the retaining recess from coming off. It is possible to prevent the fitting of the stopper projection from being released, or to prevent the retaining recess or the retaining projection from being worn to facilitate the release of the fitting.

(5) The friction tool according to (3) or (4) above, wherein the friction body has a relatively protruding portion on one end side and a relatively hard material having a friction body side fitting portion on the other end side. And a friction portion made of a relatively soft material and enclosing the laterally extending portion of the fitting body.

Such a friction portion is formed of a relatively soft material (for example, nylon resin, metal, ceramics, etc.) made of a relatively hard material (such as a nylon resin, metal, ceramics, or the like). It can be manufactured by molding and solidifying a synthetic resin material (for example, polyurethane resin). In this case, for example, the side projecting portion may project laterally (for example, in a disk shape or a polygonal shape) over the entire circumference, but ensures the integrity of the fitting body and the friction portion. In the above, a relatively soft synthetic resin material is set to protrude laterally in several directions (for example, two directions, three directions, four directions, etc.) so that the resin material spreads and solidifies between the side protruding portions. Is preferred. In the case of a projecting sideways in several directions, it is preferable to provide side projecting portions at equal center angles. In addition, a through hole in the axial direction is provided in the lateral overhang portion, so that a relatively soft synthetic resin material spreads over the through hole and is solidified to ensure the integrity of the fitting body and the friction portion. You can also.

(6) The friction tool of the above (1), (2), (3), (4) or (5) is characterized in that the friction body comes into contact with the friction object by contacting the friction object among the friction portions. A friction member side fitting portion is provided on a side opposite to a side that generates a frictional force therebetween, and the friction portion extends radially outward from the friction body side fitting portion over the entire circumference. On the side having the frictional body side fitting portion, on the outer peripheral side of the frictional body side fitting portion, there may be provided an annular intrusion prevention ridge protruding over the entire circumference toward the side having the frictional body side fitting portion. (Claims 7 and 12).

An intrusion prevention groove into which the protrusion for engaging the friction portion can be fitted is provided in the bottom of the footwear or the holding body, and the holding body side fitting portion and the friction body side fitting portion are fitted to each other, so that the friction body is fitted to the holding body. In the held state, the intrusion prevention ridge of the friction portion is fitted, and the portion of the friction portion on the outer peripheral side of the intrusion prevention ridge is formed over the entire periphery of the footwear bottom or the outer periphery of the intrusion prevention groove in the holder. If this friction tool is used so as to be in close contact with the side part, the intrusion prevention ridge of the friction part is fitted into the intrusion prevention groove, so that the friction part on the outer peripheral side and the bottom part or the holding body of the footwear bottom part And the adhesiveness with the film is improved. Therefore, it is possible to prevent fine stones, sand, soil particles, grass, dust and the like from entering the inside of the intrusion prevention ridge portion, and to release the engagement between the retaining protrusion and the retaining concave portion and to engage the friction body side. The engagement between the part and the holder-side engagement part can be released with higher certainty. Also, unless the position and the size of the intrusion prevention ridge in the friction portion of the friction body are changed, the same holder is used as the holding member regardless of the radial dimension of the outer circumference of the intrusion prevention ridge in the friction body. Even if it is used, it is possible to prevent intrusion of sand particles and the like.

The friction member generates a frictional force between the friction member and the friction object when one side in the axial direction of the friction portion contacts the friction object, and has a friction member-side fitting portion on the opposite side. .

The intrusion prevention ridge is preferably formed in an annular shape, for example, protruding toward the side having the frictional body side fitting portion in the axial direction, and its cross section can be a tapered cross section such as a triangular cross section.

(6-1) In the friction tool of (6), when the friction member is held by the holding member, the friction member has a friction member side fitting portion on the side having the friction member side fitting portion. An annular contact portion, which is a part of the holder, is in contact with the outer peripheral side, and a holder-side fitting portion is opened on the inner peripheral side of the annular contact portion. Also, the friction portion may have an intrusion preventing ridge on the outer peripheral side (claim 8).

In this case, since the annular contact portion of the holder abuts against the friction portion on the inner peripheral side of the protrusion for preventing the friction portion from entering, the sand particles and the like may enter the inside of the annular contact portion. Thus, the engagement between the retaining projection and the retaining concave portion and the engagement between the frictional body-side engaging portion and the holder-side engaging portion can be released with higher reliability.

(7) The footwear sole according to the present invention is provided with the friction tool described in the above (1), (2), (3), (4) or (5) with the holding body fixed. (Claim 6).

The footwear sole may be a part, for example, only the heel part, or may be the whole.

[0070] The shoe sole provided with such a friction tool, except for the friction body, is naturally the shoe sole to which the holder is fixed.

(8) Another footwear sole according to the present invention is provided with the friction tool according to the above (6-1) in a state where the holder is fixed, and the annular contact portion of the holder among the bottom part of the footwear bottom. On the outer peripheral side of
An annular intrusion prevention groove is provided, and in a state where the friction body is held by the holding body, the intrusion prevention ridge of the friction portion is fitted in the intrusion prevention groove, and the friction body has a friction body side fitting portion in the friction portion. The side is in close contact with the portion of the bottom surface of the footwear bottom portion on the outer peripheral side of the intrusion prevention groove portion over the entire circumference (claim 9).

In a state where the holding body side fitting portion and the friction body side fitting portion are fitted to each other and the friction body is held by the holding body, the annular contact portion of the holding body which comes into contact with the friction portion on the bottom portion of the footwear bottom portion. The intrusion prevention ridge of the friction portion fits into the intrusion prevention groove provided on the outer peripheral side of the shoe, and the side of the friction portion having the frictional body side fitting portion is the outer peripheral side of the intrusion prevention groove in the bottom surface of the footwear bottom. Close to the part over the entire circumference. By fitting the intrusion prevention ridge of the friction part into the intrusion prevention groove, the adhesion between the friction part on the outer peripheral side and the bottom part of the footwear bottom part is improved.
Therefore, it is possible to prevent fine stones, sand, soil particles, grass, dust and the like from entering the inside of the intrusion prevention ridge portion, and to release the engagement between the retaining protrusion and the retaining concave portion and to engage the friction body side. The engagement between the part and the holder-side engagement part can be released with higher certainty. In addition, on the inner peripheral side of the protrusion for preventing intrusion of the friction portion,
Since the annular contact portion of the holding member contacts the friction portion, sand particles and the like are prevented from entering the inside of the annular contact portion, the fitting of the retaining projection and the retaining recess is released, and the friction body is fitted to the friction body. The engagement between the mating portion and the holder-side fitting portion can be released with higher reliability.
Also, unless the position and the size of the intrusion prevention ridge in the friction portion of the friction body are changed, the same holder is used as the holding member regardless of the radial dimension of the outer circumference of the intrusion prevention ridge in the friction body. Even if it is used, it is possible to prevent intrusion of sand particles and the like.

The intrusion prevention groove can be fitted, for example, with or without the intrusion prevention ridge. The cross-sectional shape of the intrusion prevention groove is
For example, it may be the same as or slightly larger than the cross-sectional shape of the intrusion prevention ridge. It is preferable that the depth of the intrusion prevention groove is substantially equal to the height of the intrusion prevention protrusion.

The position of the intrusion prevention groove can be a position in contact with the outer periphery of the annular contact portion, which is a part of the holder, or a position radially outward from the outer periphery.

The footwear sole may be a part, for example, only the heel part, or may be the whole. A shoe sole provided with such a friction tool, except for the friction body, is naturally a shoe sole to which the holding body is fixed.

(9) The footwear of the present invention is provided with the footwear sole according to the above (7) or (8) (claim 10).

[0077]

Embodiments of the present invention will be described with reference to the drawings.

FIGS. 1 to 6 relate to a friction tool for golf shoes as an example of an embodiment of the friction tool of the present invention. However, it can be used for various other sports shoes and other footwear and other articles.

FIG. 1 is a cross-sectional view showing a state in which a friction body is fitted and held in a holding body. FIG. 2 shows a state in which an insertion body of a fitting release tool is inserted into an insertion portion of the friction body fitted in the holding body. Sectional view,
3 is a plan view of the friction body, FIG. 4 is a front view of the friction body, FIG. 5 is a cross-sectional view of the friction body, and FIG. 6 shows a holding body fixed to the bottom side of the friction body and the heel of the golf shoe. It is a perspective view. FIG.
2 and FIG. 2 are sectional views taken along line II in FIG.
FIG. 5 shows a cross section taken along line V-V in FIG. 3.

This friction tool comprises a holding member 10 made of 66 nylon resin, a fitting member 12 made of 66 nylon resin (hard synthetic resin), and a polyurethane resin (relatively soft synthetic resin).
And a friction member 16 formed of a friction portion 14 made of a metal.

The holding body 10 has a holding body side fitting portion 1 on the inner peripheral side.
8a (fitting concave portion) is formed, an annular holding portion 18 having an outwardly extending portion 18b at every 90 degree central angle on the outer peripheral side, and a circular lid portion 20 having an outer peripheral wall portion 20a raised on the outer peripheral side. Become.

The holding body side fitting portion 18a of the holding portion 18
Are rotationally symmetric about the vertical axis of the holding portion 18 in FIG. Most of the upper part in FIG. 1 of the holding body side fitting part 18a is constituted by a truncated conical inner peripheral surface part 18c whose diameter is reduced downward, and the lower end part thereof is an annular retaining protrusion 18d projecting inward in the warp direction. Is formed. The lower side of the retaining projection 18d in FIG. 1, that is, the lower part of the holder-side fitting portion 18a, is enlarged substantially radially outward over the entire circumference, and is surrounded by an annular wall portion 18e. The holding body 10 is formed in a state where the lower portion of the holding portion 18 is closed by externally fitting the outer peripheral wall portion 20a of the circular lid portion 10 to the annular wall portion 18e.

The holding body 10 is buried above the outwardly projecting portion 18b with at least the upper end of the holding body side fitting portion 18a in FIG. Is used. When golf shoes are used, the vertical relationship in FIG. 1 is reversed. The outer protrusion 18b functions to prevent detachment from the shoe sole and prevent rotation when the holding body 10 is embedded and fixed in the shoe sole.

Since the holding body 10 has no movable parts, the durability is good as a whole, and a golf shoe in which the holding body 10 is fixed to the golf shoe sole S in a state where the holding body 10 cannot be detached is used as long as possible. can do. In addition, since the holding body 10 has no movable portion, a material having excellent physical properties such as heat resistance, pressure resistance, and abrasion resistance can be appropriately selected and used as the holding body 10. Therefore, a material having excellent heat resistance and pressure resistance can be selected when the holder 10 is inserted into a molding material such as a synthetic resin or a synthetic rubber constituting the golf shoe sole S and molded.

The upper end of the fitting body 12 in the friction body 16 has a lateral overhang 12s as shown in FIG.
By forming and solidifying the upper end portion of the fitting body 12 including the lateral overhang portion 12s so as to cover it with a polyurethane resin (a relatively soft synthetic resin) to form a substantially disk-shaped friction portion 14, the fitting body is formed. Friction body 16 in which friction part 12 and friction part 14 are integrated
Is composed.

The portion of the fitting body 12 projecting downward from the friction portion 14 is a friction body-side fitting portion 12a (fitting projection). The frictional body-side fitting portion 12a has a pair of support pieces 12b, each of which has an arcuate shape in a horizontal cross section and whose chords face each other at a horizontal interval, and a pair of support pieces 12b.
It consists of a pair of retaining pieces 12c that face each other with a horizontal space between them.

The outer peripheral surface 12b1 of the upper half of the support piece 12b is
The outer peripheral surface of the lower half corresponds to a cylindrical shape of approximately 12 degrees, which corresponds to a central angle portion of about 120 degrees of the outer peripheral surface of a truncated cone having a diameter decreasing downward.
This corresponds to a central angle of 0 degrees. The truncated-cone-shaped inner peripheral surface 18c of the holder-side fitting portion 18a of the holder 10 and the upper-half outer peripheral surface 12b1 of the support piece 12b of the frictional-body-side fitting portion 12a of the friction body 16 form a lateral support mechanism and a fitting direction. Construct a support mechanism.

At the lower end of the retaining piece 12c, a retaining concave portion 12c1 which is formed in a substantially circumferential groove shape and is opened outwardly is formed. Lower end outer surface 12c2 of retaining piece 12c
Is inclined upward and outward.

The upper surface of the friction portion 14 gradually swells upward toward the center. The upper surface of the friction portion 14 has a frusto-conical upward projection 22 at the center in FIG. 3, and is disposed at equal intervals in the circumferential direction around the projection, and tapers radially inward in plan view. Forming a substantially droplet shape,
Four projections 2 protruding upward higher than the central projection 22
4 The outer peripheral edge of the lower surface of the friction portion 14 protrudes slightly downward over the entire circumference, and the inner peripheral side is formed in the shallow concave portion 26.

At the outer side in the longitudinal direction of the both retaining pieces 12c in the friction portion 14, insertion portions 28 each having a vertical hole shape are provided. Each insertion portion 28 is open at the lower portion and closed at the upper portion by the closing portion 30. The closing part 30 has a truncated conical shape in appearance, and the upper part of the insertion part 28 is located from the lower part to the inside.

When the friction member 16 is used as a friction tool in combination with a holding member 10 made of a hard synthetic resin such as 66 nylon resin, the friction portion 14 of the friction member 16 is relatively soft, so that a green or building This greatly contributes to the prevention of damage to the floor surface and the like, and the improvement of comfort.
And the retaining projections 18d are made of a hard synthetic resin.
This prevents the fitting between c1 and the retaining projection 18d from being released, and prevents the retaining recess 12c1 or the retaining projection 18d from being worn and the fitting thereof from being easily released.

The holding body side fitting portion 18a of the holding body 10 embedded and fixed on the golf shoe sole S (the shoe bottom faces upward in FIG. 1).
In the direction shown in FIG.
When a is sufficiently fitted, the distal end of the retaining piece 12c is guided by the truncated conical inner peripheral surface 18c of the holder-side fitting portion 18a in the process of fitting the lower end outer surface 12c2. After being once elastically bent radially inward, it is restored radially outward, and the retaining recess 12c1 is fitted to the retaining projection 18d as shown in FIG.

The retaining recess 12c1 has a retaining projection 18.
When the retaining piece 12c is fitted, the retaining piece 12c is fitted by a radially outward urging force (a force that resists the elasticity of the retaining piece 12c against the bending of the retaining piece 12c inward in the radial direction). And the frictional body side fitting portion 12a
Is prevented from disengaging upward from the holding body side fitting portion 18a, and the friction body 16 is fixedly held by the holding body 10. At this time, the friction is performed in a state where the upper surface of the holding body 10 is located in the shallow recess 26 on the lower surface side of the friction portion 14 and the outer peripheral edge of the lower surface of the friction portion 14 is slightly below the upper surface of the holding member 10. The outer peripheral portion of the shallow concave portion 26 of the body 16 and the outer peripheral portion of the holding body 10 are pressed against each other over the entire circumference, and fine stones, sand particles, soil particles, turf, dust, and the like are interposed between the outer peripheral portions of the friction body 16 and the holding body 10. Is prevented from entering and clogging the inside, so that the release of the engagement between the retaining recess 12c1 and the retaining projection 18d and the release of the engagement between the frictional body side fitting portion 12a and the holder side fitting portion are more reliably performed. Can be expensive.

The outer peripheral surfaces 12b1 of both upper halves of the support piece 12b in the frictional body side fitting portion 12a are connected to the holding body side fitting portion 1a.
By contacting the inner peripheral surface portion 18c of the truncated cone 8a of FIG. 8a, the friction body 16 is supported upward and radially by the holding body 10, so that the friction body 16 is fixed to the holding body 10 embedded and fixed to the golf shoe sole S. Not being able to exhibit a sufficient frictional effect due to being held in an unstable manner, being damaged or worn in the holding body side fitting portion 18a or the friction body side fitting portion 12a, and holding the friction body 16 by the holding body 10 during use. Is released and the friction body 16 is prevented from falling off.

When the golf shoes are worn while the plurality of friction bodies 16 are held by the plurality of holders 10, each friction body 1
6 mainly exerts a friction function by the projections 24.

Since the friction body 16 can rotate around the axial direction with respect to the holding body 10, ie, the golf shoe sole S, it can exert the effect of protecting lawn and the like and suppressing the wear of the friction body 16. When the degree of abrasion differs depending on the position of the projection 24,
It is also possible to rotate the friction body 16 as appropriate to extend the life by equalizing the wear.

When this friction tool is used, the friction member 16
Of the central projection 2 which is lower than the projection 24
2 and the obturator 30 are sufficiently worn.
Is closed by the closing portion 30, so that the insertion portion 28 is clogged with particles, particles, pieces, etc. of sand, stone, earth, ceramics, metal, synthetic resin, wood, etc. Friction body 16 from holder 10 due to insertion of body 32
Is prevented, and various projections and other objects on the ground and floor are unintentionally inserted into the insertion portion 28, and the engagement between the retaining recess 12c1 and the retaining projection 18d is released. Can be avoided.

The fitting release tool 31 is made of a synthetic resin plate.
A pair of inserts 32 projecting downward parallel to each other is provided at the center of the lower end of the grip portion 31a having a substantially disk shape. Between the two inserts 32 is formed a recess into which the central projection 22 can fit. Each of the inserts 32 has a rod shape that can be elastically bent.

The projection 24 of the friction body 16 is worn by friction with a friction object such as a road surface, and the central projection 22 and the closing portion 30 which are lower than the projection 24 are sufficiently worn, for example, as shown in FIG. Then, the insertion portion 28 is sufficiently opened so that the insertion body 32 can be inserted from above (or the closing portion 30).
Is sufficiently thin to separate the outside from the inside of the insertion portion 28). This time is matched with the time when the projection 24 is sufficiently worn to make it difficult to exhibit the slipping function.
The opening 8 indicates the replacement time of the friction body 16 and enables the replacement of the friction body 16.

In order to remove the friction body 16 from the holding body 10, the pair of inserts 32 is sufficiently inserted downwardly in FIG. Then, both inserts 32
Is guided by the truncated conical inner peripheral surface portion 18c and heads inward and downward, and presses the outer surfaces of both retaining pieces 12c inward to bend elastically radially inward. As a result, the engagement of the retaining recess 12c1 with the annular retaining projection 18d is released, so that the frictional body-side fitting portion 12a is disengaged upward from the holding body-side fitting portion 18a, and the friction body 16 is held in the holding body 10a.
It can be removed from. At this time, the truncated conical inner peripheral surface portion 18c exerts a force to push upwardly on both the inserts 32 and the both retaining pieces 12c elastically bent inward in the radial direction. It can be easily detached from the holder 10 together with the insert 32 of the tool 31. Since both the insertion portion 28 and the retaining piece 12c are provided on the friction body 16, the retaining piece can be sufficiently inserted into the insertion portion 28 regardless of the rotation angle of the friction body 16 with respect to the holding body 10. The engagement of the retaining recess 12c1 with the retaining projection 18d can be released by bending the 12c radially inward.

FIGS. 7 to 11 relate to a friction tool for golf shoes as another example of the friction tool according to the embodiment of the present invention. However, it can be used for various other sports shoes and other footwear and other articles.

FIG. 7 is a plan view of the friction body, FIG. 8 is a cross-sectional view showing a state where the friction body is fitted and held on the holding body, FIG. 9 is a front view of the friction body, and FIG. It is sectional drawing which shows the state which inserted the insertion body of the fitting release tool in the insertion part of a body. 8 and 10 show the cross section taken along line VIII-VIII in FIG.

This friction tool is composed of a metal (aluminum) holder 110 and 66 nylon resin (hard synthetic resin).
And a friction member 116 including a friction portion 114 made of polyurethane resin (a relatively soft synthetic resin). The fitting body 112 and the friction portion 114 in the friction body 116 are integrated in the same manner as in the embodiment shown in FIGS. The friction body-side fitting portion 112a (fitting protrusion), the support piece 112b, the retaining piece 112c, the retaining recess 112c1 and the like in the fitting body 112 are the same as those in the embodiment shown in FIGS.

The holding body 110 has a holding body side fitting portion 110a (fitting concave portion) formed on the inner peripheral side, and has a flange-shaped outwardly extending portion 110b over the entire circumference at a vertical intermediate position on the outer peripheral side.

The holder-side fitting portion 110a is rotationally symmetric about the vertical axis in FIG. The upper part in FIG. 8 of the holding body side fitting part 110a is configured by a truncated conical inner peripheral surface part 110c whose diameter is reduced downward,
Its lower end is an annular retaining projection 11 which projects inward in the meridian direction.
0d. The lower side of the retaining projection 110d in FIG. 8, that is, the lower part of the holder-side fitting portion 110a, is substantially radially outwardly expanded over the entire circumference, and is surrounded by an annular wall 110e. Holder side fitting part 11
0a and the retaining projection 110d are substantially the same as those in the embodiment shown in FIGS.

The lower side of the annular wall 110e is the circular bottom 11
It is closed by 0f. The holding body 110 is rotationally symmetric about the vertical axis, except for the vertical cylindrical through-hole 110g provided in the retaining projection 110d in a rotationally symmetrical shape eight times.

The holding body 110 has at least an annular contact part 110h at the upper end of the holding body side fitting part 110a in FIG.
In a state where is exposed, it is fixed to the golf shoe sole T by being buried above the outwardly extending portion 110b and used. The annular contact portion 1 of the holding body 110 in the golf sole T
An annular intrusion prevention groove T1 having an upper opening is provided in contact with the outer peripheral side of 10h and coaxially with the vertical axis of the holding body side fitting portion 110a. It is constituted by 110 cylindrical outer peripheral surfaces. The intrusion prevention groove T1 can be provided on the outer side, but by providing such, the positioning becomes easy. When golf shoes are used, the vertical relationship in FIG. 8 is reversed. The cylindrical through-hole 110g of the outwardly extending portion 110b is
10 functions as a detent when embedded and fixed in the sole T.

Like the holding member 110, the holding member which does not have any of the retaining recess forming portion and the retaining protrusion urged in a direction that can be fitted to the other is integrally formed of metal or other material. Products. The holding body 10
If the thing equivalent to the holding part and the lid part is made into an integrated product instead of the holding part 18 and the circular lid part 20 like this, the rigidity of the whole is increased and the deformation is suppressed as compared with the case of a separate body. Thus, the accuracy with which the holding body holds the friction body can be improved by fitting the holding body side fitting portion and the friction body side fitting portion. In addition, when the holding body is fixed to the footwear bottom, the above-described lid does not drop off or slip off from the holding part.

Since the holding body 110 has no movable portion, the durability is good as a whole, and the holding body 110 is inserted into a molding material such as a synthetic resin or a synthetic rubber which constitutes the golf shoe sole T. The fact that it is possible to select a material having excellent heat resistance and pressure resistance in molding
This is the same as the embodiment shown in FIGS.

The friction part 114 has a vertical hole 122a with an upper opening at the center of a truncated cone-shaped upward projection 122 at the center, and the outer peripheral part of the lower peripheral part is flat. 1 to FIG. 1 to FIG. 1 to FIG. 1 except that the inner portion has an annular intrusion prevention ridge 114a that is rotationally symmetric about the vertical axis and that the closing portion 130 has a cylindrical shape in appearance. This is the same as the embodiment shown in FIG.

The intrusion preventing ridge 114a has a triangular cross section projecting downward, and the intrusion preventing ridge 114a fits into the intrusion preventing groove T1 while the friction body 116 is held by the holder 110, The lower surface of the friction portion 114 on the outer peripheral side of the intrusion prevention ridge 114a is in close contact with the outer peripheral side of the intrusion prevention groove T1 on the bottom surface of the shoe sole T. Intrusion prevention groove T
When the protrusion 114a of the friction portion 114 is fitted to the first portion 1, the adhesion between the friction portion 114 and the bottom surface of the shoe sole T on the outer peripheral side is improved. Therefore, fine stones, sand, soil particles, turf, dust, and the like are prevented from entering the inside of the intrusion preventing ridge portion, and the engagement between the retaining protrusion 110d and the retaining concave portion 112c1 is released, and the friction member side. Fitting part 112
a can be more reliably released from the holding body side fitting portion 110a. Further, the ridge 11 for preventing the friction portion 114 from entering.
On the inner peripheral side of 4a, the annular contact portion 11 of the holding body 110
Since 0h contacts the friction portion 114, sand particles and the like are prevented from entering the inside of the annular contact portion 110h, and when the closing portion 130 is sufficiently worn to insert the insert 32 into the insertion portion 128. Retaining projection 110d and retaining recess 11
The release of the fitting of 2c1 and the release of the fitting between the frictional body side fitting portion 112a and the holding body side fitting portion 110a can be performed with higher reliability. If the position and the size of the intrusion prevention ridge in the friction portion of the friction body are not changed, the holding body 110 is used regardless of the size in the radial direction of the outer circumference of the intrusion prevention ridge 114a of the friction body 116. Even if the same material is used, it is possible to prevent intrusion of sand particles and the like.

FIGS. 11 to 14 relate to a friction device for golf shoes as still another embodiment of the friction device according to the present invention. However, it can be used for various other sports shoes and other footwear and other articles.

FIG. 11 is a cross-sectional view showing a state in which the friction body is fitted to the holding body, FIG. 12 is a front view of the friction body, and FIG. 13 is a perspective view of the holding body. This friction tool includes a holding member 50 made of 66 nylon resin and a friction member 51 made of polyurethane resin.

The holding body 50 is composed of a thick cylindrical portion 52 and a projecting portion 54 projecting radially outward over the entire circumference at an intermediate position in the axial direction. The lower part of the holding body 50 is usually
It is closed by a bottom plate (not shown).

The overhang 54 has bow-shaped cutouts 54a at four positions at 90 ° central angles. By having such a cutout portion 54a in the overhang portion 54, for example, when embedded and fixed in a shoe sole L made of synthetic rubber by insert molding or the like,
The rotation of the holder 50 about the axis is prevented with high certainty. In addition, the bottom plate allows the thick cylindrical portion 52 of the holder 50 to be embedded and fixed by insert molding or the like.
Synthetic rubber or the like is prevented from entering the inside.

In the thick cylindrical portion 52 of the holder 50,
There are axial grooves 56 (retainer-side insertion portions) that open to the inner peripheral surface at two locations at each 80-degree central angle. Each axial groove portion 56 has a base portion at the outer peripheral portion at the upper portion (fitting port side) of the thick cylindrical portion 52, and a downwardly directed distal end portion protrudes radially inward at an acute angle. Tongue piece 60 formed in part 58
(Cantilever-shaped part). The inner surface of the tongue piece 60 is inclined inward and downward.

The tongue piece 60 elastically urges the retaining projection 58, which is the tip end thereof, inward in the radial direction by its own elasticity, and pushes the retaining projection 58 outward in the radial direction. When displaced, an elastic repulsion is generated in a radially inward direction.

The cylindrical inner peripheral surface of the thick cylindrical portion 52 has axial grooves 56 as discontinuous portions at two locations in the circumferential direction.
The holding body side fitting portion 62 is configured.

The friction member 51 includes a substantially disk-shaped friction portion 64,
The friction portion 64 includes a cylindrical frictional body-side fitting portion 66 protruding downward at the center of the frictional portion 64. The frictional portion 64 has a structure similar to that of the frictional body 16 in the embodiment shown in FIGS. It is almost the same as the part 14.

The outer diameter of the frictional body side fitting portion 66 is slightly smaller than the inner diameter of the holding body side fitting portion 62,
Is chamfered on the outer periphery of the lower end. At the lower end slightly above the frictional body side fitting portion 66, a circumferential annular retaining groove portion 68 (retaining concave portion) of a radially outward opening is formed.

In this friction tool, the cylindrical inner peripheral surface of the holding body side fitting portion 62 of the holding body 50 and the friction body 51
The cylindrical outer peripheral surface of the frictional body side fitting portion 66 in the above forms a lateral support mechanism.

FIG. 14 is similar to FIG. 1 except that a slit portion 70 for inserting the insertion body 32 is provided in place of the closing portion 30.
FIG. 6 is a cross-sectional view of a friction body similar to the friction body 16 shown in FIG.

The vertical positional relationship in the description of the above embodiment is for convenience of explanation based on the drawings, and does not limit the actual use state and the like.

[0124]

According to the friction tool, the friction body, the footwear sole and the footwear of the present invention, if the friction body-side fitting portion is sufficiently fitted to the holding body-side fitting portion, the friction body can be used without using other equipment. Can be easily and reliably held by the holding body. The friction body can be easily and reliably removed from the holder by inserting the insert for releasing the fitting sufficiently into the insertion section, but the insertion section is closed by the closing section until the closing section is sufficiently worn. Therefore, various foreign matters may be clogged in the insertion portion, preventing the friction body from being detached from the holding body by inserting the insertion member for releasing the engagement with the insertion portion, and various protrusions on the ground or the like. It is possible to prevent the fitting of the retaining recess and the retaining projection from being released by being inserted into the insertion portion. In addition, when the closing portion that closes the insertion portion is worn to a predetermined degree due to friction between the friction portion of the friction body and the friction object, the opening portion is sufficiently opened or the thickness that separates the outside from the inside of the insertion portion. When the insertion member is sufficiently thin, the insertion member for releasing the fitting can be inserted from the outside through the opening of the insertion portion or by piercing the thinned closing portion from the outside. By adjusting the timing to a time when the insertion body for releasing the fitting can be inserted into the insertion part due to the wear of the closing part, it is possible to indicate the replacement time of the friction body and to enable the replacement of the friction body. it can.

According to the second aspect of the present invention, the time when the frictional portion of the frictional body is worn until the frictional force that can be exerted between the frictional body and the frictional object is reduced, that is, the time when the frictional body reaches the replacement time, is the time when the frictional body is replaced. Since it corresponds to the time when the insertion body for disengagement can be inserted into the insertion part due to wear, the insertion part is opened to the outside to the extent that the insertion body for disengagement can be inserted from the outside or from the outside. When the thickness of the closing portion that separates the outside and the inside of the insertion portion is small enough to penetrate and insert the insertion member, the replacement time of the friction member is indicated and the friction member can be replaced.

In the friction tool according to the fourth aspect, since the friction member has a movable portion and the holder has no movable portion, the durability of the entire holder is good. Therefore, an article such as a shoe sole having the holding body fixed in a non-detachable state can be used as long as possible. In addition, since the holding portion does not have a movable portion, a material having excellent properties such as heat resistance, pressure resistance, and abrasion resistance can be appropriately selected and used as the holding member. Alternatively, it is preferable to insert the holder into a molding material such as synthetic rubber and mold it. Furthermore, since the friction body has a biasing member (movable portion) and an insertion portion which are urged in a direction that can be fitted to the other of the retaining concave portion forming portion and the retaining protrusion, the friction member fits and holds the holding member. If the friction body can rotate around the axis in the fitting direction in the state in which the friction body is released from the holding body by releasing the engagement between the retaining recess and the retaining projection and removing the friction body from the holding body. No need to rotate.

In the case of using the friction tool of claim 7 or the friction body of claim 12, if the intrusion prevention groove is provided in the footwear bottom or the holder, sand particles and the like can intrude inside the intrusion prevention ridge. Thus, the engagement between the retaining projection and the retaining concave portion and the engagement between the frictional body-side engaging portion and the holder-side engaging portion can be released with higher reliability. Also, unless the position and the size of the intrusion prevention ridge in the friction portion of the friction body are changed, the same holder is used as the holding member regardless of the radial dimension of the outer circumference of the intrusion prevention ridge in the friction body. Even if used, it is possible to prevent intrusion of sand particles and the like.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state in which a friction body is fitted and held in a holding body.

FIG. 2 is a cross-sectional view showing a state in which an insertion body of a fitting release tool is inserted into an insertion portion of a friction body fitted to a holding body.

FIG. 3 is a plan view of a friction body.

FIG. 4 is a front view of the friction body.

FIG. 5 is a sectional view of a friction body.

FIG. 6 is a perspective view showing a holding member fixed to a bottom surface side of the friction member and a heel portion of the golf shoe.

FIG. 7 is a plan view of a friction body.

FIG. 8 is a cross-sectional view showing a state in which a friction body is fitted and held in the holding body.

FIG. 9 is a front view of the friction body.

FIG. 10 is a cross-sectional view showing a state in which an insertion body of a fitting release tool is inserted into an insertion portion of a friction body fitted to a holding body.

FIG. 11 is a cross-sectional view of another friction tool in a state where a friction body is fitted to a holding body.

FIG. 12 is a front view of another friction body.

FIG. 13 is a perspective view of another holding body.

FIG. 14 is a sectional view of another friction body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Holder 12 Fitting body 12a Friction body side fitting part 12b Supporting piece 12b1 Upper half outer peripheral surface 12c Retaining piece 12c1 Retaining recess 12c2 Lower outer surface 12s Side overhanging part 14 Friction part 16 Friction body 18 Holding part 18a Holding Body side fitting portion 18b Outward overhanging portion 18c Frustoconical inner peripheral surface portion 18d Retaining stopper projection 18e Annular wall portion 20 Circular lid portion 20a Outer peripheral wall portion 22 Central projection 24 Projection 26 Shallow recess 28 Insertion section 30 Closure section 31 Fitting Fitting release tool 31a Gripping part 32 Insert S Golf shoe sole 50 Holder 51 Friction body 52 Thick cylindrical part 54 Overhang 54a Notch 56 Axial direction groove 58 Retaining stopper 60 Tongue piece 62 Fitting on holder side Part 64 friction part 66 friction body side fitting part 68 retaining groove part 70 slit part L shoe sole 110 holding body 110a holding body side fitting part 110 b Outward projecting portion 110c Inner peripheral surface of frustoconical shape 110d Retaining protrusion 110e Annular wall 110f Circular bottom 110g Cylindrical through hole 110h Annular contacting portion 112 Fitting body 112a Friction body side fitting portion 112b Support piece 112c Piece 112c1 retaining recess 114 friction part 114a intrusion prevention ridge 116 friction body 122 central projection 122a hole 130 closing part T shoe sole T1 intrusion prevention groove

Claims (12)

[Claims] A holding member, and a friction member held by the holding member, wherein the friction member comes into contact with the friction object in a state of being held by the holding member, and A friction tool having a friction portion that generates a frictional force, wherein the holding body and the friction body each have a holder-side fitting portion and a friction-body-side fitting portion that are fitted to each other, and the friction member has friction with the holding body-side fitting portion. The body-side fitting portion includes a lateral supporting mechanism that can prevent relative movement between the friction body-side fitting portion and the friction member-side fitting portion when the fitting portion is fitted to the holding body-side fitting portion in a direction orthogonal to the fitting direction.
One of the retaining recess and one of the retaining projections that can be fitted into the retaining recess when the retainer-side fitting portion and the frictional body-side fitting portion are fitted to each other has one of the retaining member and the other of the friction member. One of the retaining recessed component and the retaining projection is urged in a direction in which it can be fitted to the other, and the retaining recess and the retaining projection are fitted to the holder-side fitting portion by the friction body side. When the parts move relative to each other in the fitting direction, they can be fitted, and when the parts move relative to each other in the opposite direction, the fitting is not released,
The friction body has one or two or more insertion portions into which an insertion body for releasing the engagement between the retaining recess and the retaining projection can be inserted, and the insertion portion is closed by a closing portion. The closing portion is worn as the friction portion of the friction body wears to a predetermined degree due to friction with the friction object, so that the insertion portion is externally large enough to insert the insertion body for releasing the fitting from outside. The thickness of the closing part that separates the inside from the outside of the insertion part is thin enough to open or penetrate from the outside and insert the insertion body. When the insertion member for disengagement is sufficiently inserted into the insertion portion, the insertion prevention member receives the force from the insertion member directly or through another portion, and the retaining member is disengaged from the concave portion. It is characterized by releasing the fitting of the stop projection Friction tool. 2. The frictional force of the frictional body of the frictional body, which has been worn to a predetermined degree by friction with the frictional object, can exert between the frictional part and the frictional object as compared with before the abrasion. Friction tools. 3. The retaining recessed portion is located on the other side of one or more cantilevered portions having a base located on one side in the fitting direction and is opened laterally. When the frictional body side fitting portion moves relative to the mating portion, the cantilever-shaped portion is elastically bent in a direction opposite to the opening direction of the retaining recess, so that the retaining recess is prevented from falling. When the protrusion reaches the position in the fitting direction and its bending is at least partially restored, the retaining recess can be fitted to the retaining protrusion in the direction of the opening, and the retaining recess fits to the retaining protrusion. In this state, the cantilever-shaped part is pressed by the insert, and is elastically reversed in the direction opposite to the opening of the retaining recess. 3. The fitting between the retaining recess and the retaining projection is released by bending. Friction tool mounting. 4. The friction member according to claim 1, wherein the holding member does not have a retaining recessed component and a retaining projection urged in a direction that can be fitted to the other of the retaining member. Friction tools. 5. The outer periphery of a rotating body having an outer diameter that is constant or that gradually decreases toward the front in the fitting direction, wherein the friction body-side fitting portion may have a discontinuous portion in one or more portions in the circumferential direction. The fitting projection having the surface, the holding body side fitting part may have a discontinuous part in one or more parts in the circumferential direction corresponding to the rotation outer peripheral surface, fixed or rearward in the fitting direction. 4. A rotating inner peripheral surface having an inner diameter gradually reduced toward the outer surface, wherein the outer peripheral surface and the inner peripheral surface constitute a lateral support mechanism or a lateral support mechanism and a fitting direction support mechanism. 4. The friction tool according to 4. 6. The method according to claim 1, wherein the holding member is fixed.
A footwear sole provided with the friction tool according to 3, 4, or 5. 7. The friction member has a friction member side fitting portion on a side of the friction portion opposite to a side on which a friction force is generated between the friction member and the friction object when the friction member contacts the friction object. Extends over the entire circumference radially outwardly of the frictional body-side fitting portion, and on the side of the friction portion having the frictional body-side fitting portion that is more peripheral to the frictional body-side fitting portion, the friction body-side fitting portion is provided. The friction tool according to claim 1, further comprising an annular intrusion prevention ridge portion protruding over the entire circumference toward the side having the indentation. 8. In the state in which the friction member is held by the holding member, a portion of the holding portion is provided on the side of the friction portion having the friction member-side fitting portion that is closer to the outer periphery than the friction member-side fitting portion. The annular contact portion is in contact with the support member, and the holder-side fitting portion is opened on the inner peripheral side of the annular contact portion, and the friction portion is provided on the outer peripheral side with respect to the portion where the annular contact portion abuts. The friction tool according to claim 7 having a portion. 9. A friction tool according to claim 8, wherein the holding body is fixed, and an annular intrusion prevention groove is provided on the outer peripheral side of the annular abutting portion of the holding body on the bottom surface of the footwear bottom. In a state in which the friction body is held by the holding body, the intrusion prevention ridge of the friction part is fitted into the intrusion prevention groove, and the side of the friction part having the friction body side fitting part is the bottom part of the footwear bottom part. The bottom of the footwear, which is in close contact with the entire outer circumference of the intrusion prevention groove. 10. A footwear comprising the footwear bottom according to claim 6. 11. A friction member, comprising: a holding member; and a friction member held by the holding member, wherein the friction member comes into contact with the friction object in a state of being held by the holding member. A friction body for a friction tool having a friction portion that generates a frictional force, wherein the holding body and the friction body each have a holding body side fitting section and a friction body side fitting section that fit together,
The retainer-side fitting portion and the frictional body-side fitting portion are configured such that when the frictional body-side fitting portion is fitted to the holder-side fitting portion, a lateral movement that can prevent relative movement therebetween in a direction orthogonal to the fitting direction. A directional support mechanism is provided, and one of the retaining protrusions, which can be fitted to the retaining concave portion in a state where the retaining portion-side fitting portion and the frictional body-side fitting portion are fitted to each other, to the retaining member, The other is provided in the friction body, and one of the retaining concave component and the retaining projection is urged in a direction in which it can be fitted to the other, and the retaining concave and the retaining projection are fitted to the holding body side. It can be fitted when the frictional body side fitting part moves relative to the fitting direction, and when it moves in the opposite direction, the fitting is not released. The friction body has one or more insertion portions into which an insertion member for releasing the fitting of the protrusions can be inserted, The insertion portion is closed by a closing portion, and the closing portion is worn by the friction portion of the friction body to a predetermined degree due to friction with the friction object, and the insertion for externally releasing the fitting is performed. The thickness of the opening which is open to the outside to the extent that the body can be inserted or breaks through from the outside and separates the inside from the inside of the insertion portion to the extent that the insertion body can be inserted is reduced. The component or the retaining projection has a force in a direction opposite to the bias received from the insert directly or through another part when the insert for fitting release is sufficiently inserted into the insert. A friction member for a friction tool, wherein the engagement between the retaining concave portion and the retaining projection is released by the release. 12. A friction member having a friction member side fitting portion on a side opposite to a side of the friction portion that generates a frictional force between the friction member and the friction member when the friction member comes into contact with the friction object. It extends over the entire circumference radially outward from the fitting portion, and on the side of the friction portion having the friction body side fitting portion, on the outer peripheral side of the friction body side fitting portion, toward the side having the friction body side fitting portion. The friction body according to claim 11, further comprising an annular intrusion prevention ridge projecting over the entire circumference.