WO2004058365A1

WO2004058365A1 - Roller skate combined shoes

Info

Publication number: WO2004058365A1
Application number: PCT/KR2003/002560
Authority: WO
Inventors: Jong Won Woo
Original assignee: Jong Won Woo
Priority date: 2002-12-26
Filing date: 2003-11-25
Publication date: 2004-07-15
Also published as: AU2003282434A1; KR200308285Y1

Abstract

The present invention relates to a roller skate combined shoe comprising a shoe body (10) having a wheel insertion hole (11) in a lower center portion of a heel, a support member (20) inserted into the wheel insertion hole (11) and having a rotary shaft engaging groove (21) in an opposite surface, a wheel assembly (30) having a rotary shaft (31) detachably engaged in the rotary shaft engaging groove (21) and a wheel (32) being rotatable with respect to the center of the rotary shaft (31), a free escape prevention means (40) formed in the support member (20) for preventing a free escape of the wheel assembly (30), and an escape assistant means (50) formed in the support member (20) for supporting an escape of the wheel assembly (30) if necessary.

Description

ROLLERSKATE COMBINED SHOES

Technical Field

The present invention relates to roller skate combined shoes, and in particular to

roller skate combined shoes in which a wheel assembly is detachably engaged, so that

shoes are used as common shoes or as roller skate shoes.

Background Art

A roller-skating is a kind of sports. In the roller skate, small wheels are engaged

to the lower surfaces of shoes, so that a user slides on a floor or a certain place paved with

asphalt, etc.

A certain number or a plurality of wheels are engaged to a lower surface of the

shoes that are used for a roller-skating. In particular, an inline skate in which a plurality of

wheels are aligned in series in a ski boot attracts a big attention.

In addition, a common people's trend is being changed with respect to a social

activity and sports activity. People who enjoy a roller skate like an inline skate is

gradually increased in a place where is not specially designated as a place for sports

activity. In particular, a roller skate mania who enjoys a roller skate everyday is increased.

However, a common type of roller skate shoes is formed in a structure that a

wheel assembly is fixed to a lower surface of a shoe body. In the above structure, people

who want to enjoy skating puts on common shoes, while carrying skating shoes, move to a certain place. In the place, the user changes the common shoes with the staking shoes

for thereby enjoying skating. After the user finishes skating, the user changes the skating

shoes with the common shoes and moves to a certain place.

Disclosure of Invention

Accordingly, it is an object of the present invention to provide roller skate

combined shoes that overcome the problems encountered in a conventional art and that

may be used as roller skating shoes or as common shoes.

It is another object of the present invention to provide roller skate combined

shoes which include a shoe body 10 having a wheel insertion hole 11 in a lower center

portion of a heel, a support member 20 inserted into the wheel insertion hole 11 and

having a rotary shaft engaging groove 21 in an opposite surface, a wheel assembly 30

having a rotary shaft 31 detachably engaged in the rotary shaft engaging groove 21 and a

wheel 32 being rotatable with respect to the center of the rotary shaft 31, a free escape

prevention unit 40 formed in the support member 20 for preventing a free escape of the

wheel assembly 30, an escape assistant unit 50 formed in the support member 20 for

supporting an escape of the wheel assembly 30 if necessary, and an insertion hole filling

member 60 inserted into the insertion hole 11 when the wheel assembly 30 is escaped for

thereby forming a flat structure in the lower surface of the shoe body 10.

The free escape prevention unit 40 is a tongs 41 formed in the rotary shaft

engaging groove 21 of the support member 20 for thereby elastically supporting the rotary shaft 31 of the wheel assembly 30 at both sides.

The escape assistant unit 50 includes a switch engaging hole 51 passing through

in a direction of the support member 20 in the lateral side of the body 10, a switch 52

operably inserted into the switch engaging hole 51, an escape member 53 having a body

531 driven by the switch 52, and an inclination portion 532 extended from the body 531

and formed in such a manner that the wheel assembly 30 is outwardly pushed when

pressing and driving the switch 52, and a tension spring 54 for elastically supporting the

body 531 of the escape member 53 in such a manner that the switch 52 is outwardly

supported in an outer direction of the switch engaging hole 51.

The escape assistant unit 50 is formed in the tongs 41 of the support member 20

in such a manner that the rotary shaft 31 of the wheel assembly 30 is outwardly pushed

when pressing and driving the switch 52.

Brief Description of Drawings

The present invention will become better understood with reference to the

accompanying drawings which are given only by way of illustration and thus are not

limitative of the present invention, wherein;

Figures 1 through 14 are views illustrating roller skate combined shoes according

to the present invention, of which:

Figure 1 is a side view illustrating a state that a wheel assembly is engaged

according to the present invention; Figure 2 is a bottom view illustrating a state that a wheel assembly is engaged

according to the present invention;

Figure 3 is a side view illustrating a state that a wheel assembly is disengaged

according to the present invention;

Figure 4 is a bottom view illustrating a state that a wheel assembly is disengaged

according to the present invention;

Figure 5 is a bottom view illustrating a state that an insertion hole-filling member

is engaged according to the present invention;

Figure 6 is a disassembled perspective view illustrating a shoe body and an

insertion hole-filling member according to the present invention;

Figures 7 and 8 are enlarged perspective views illustrating a support member of a

wheel insertion hole according to the present invention;

Figure 9 is a front view illustrating a wheel assembly according to the present

invention;

Figure 10 is a perspective view illustrating a wheel assembly according to the

present invention;

Figures 11 and 12 are enlarged perspective views illustrating a wheel assembly-

engaging portion according to the present invention;

Figure 13 is a disassembled perspective view illustrating an escape assistant unit

and a support member according to the present invention; and

Figure 14 is a view illustrating an operation of an escape assistant unit according to the present invention.

Best Mode for Carrying Out the Invention

The preferred embodiments of the present invention will be described with

reference to the accompanying drawings.

Figure 1 is a side view illustrating a state that a wheel assembly is engaged

according to the present invention, Figure 2 is a bottom view illustrating a state that a

wheel assembly is engaged according to the present invention, Figure 3 is a side view

illustrating a state that a wheel assembly is disengaged according to the present invention,

according to the present invention, Figure 5 is a bottom view illustrating a state that an

insertion hole filling member is engaged according to the present invention, Figure 6 is a

disassembled perspective view illustrating a shoe body and an insertion hole illing

member according to the present invention, Figures 7 and 8 are enlarged perspective

views illustrating a support member of a wheel insertion hole according to the present

invention, Figure 9 is a front view illustrating a wheel assembly according to the present

invention, Figure 10 is a perspective view illustrating a wheel assembly according to the

present invention, Figures 11 and 12 are enlarged perspective views illustrating a wheel

assembly engaging portion according to the present invention, Figure 13 is a

disassembled perspective view illustrating an escape assistant unit and a support member

according to the present invention, and Figure 14 is a view illustrating an operation of an escape assistant unit according to the present invention.

As shown therein, the roller skate combined shoes according to the present

invention includes a shoe body 10 having a wheel insertion hole 11 in a lower center

having a rotary shaft engaging groove 21 in an opposite side, a rotary shaft 31 detachably

engaged to the rotary shaft engaging groove 21, a wheel assembly 30 having a wheel 32

rotatable with respect to the center of the rotary shaft 31, a free escape prevention unit 40

formed in the support member 20 for preventing a free escape of the wheel assembly 30,

an escape assistant unit 50 formed in the support member 20 for supporting an escape of

the wheel assembly 30 if necessary, and an insertion hole filling member 60 inserted into

the insertion hole 11 when the wheel assembly 30 is escaped and adapted to form the

lower surface of the shoe body 10 in a flat surface.

As shown in Figures 1 and 2, the present invention is directed to the roller skate

combined shoes. When using as the roller skate, the wheel assembly 30 is engaged to the

support member 20 of the wheel insertion hole 11 formed in the heel of the body 10 for

thereby implementing a skating structure. When using as the common shoes, as shown in

Figures 3 through 6, the wheel assembly 30 is escaped from the support member 20 of the

wheel insertion hole 11, and the insertion hole filling member 60 is filled into the wheel

insertion hole 11, for thereby implementing a common shoe structure.

In the present invention, the wheel assembly 30 formed of the rotary shaft 31 and

the wheel 32 is engaged or disengaged from the wheel insertion hole 11 of the shoe body 10. In the case that the wheel assembly 30 is engaged and used as a roller skate, the free

escape prevention unit 40 is used for preventing the wheel assembly 30 from being

escaped from the wheel insertion hole 11 of the shoe body 10 for thereby implementing a

certain desired safety when in use. After the skating is finished, in the case that the wheel

assembly 30 is escaped from the wheel insertion hole 11 of the shoe body 10, there is

provided the escape assistant unit 50 for easily separating the wheel assembly 30 for

thereby implementing a convenient operation when in use.

The construction of the free escape prevention unit 40 will be described.

In the roller skate combined shoes according to the present invention, the wheel

assembly 30 is formed of the rotary shaft 31 and the wheel 32. In the present invention,

since the rotary shaft 31 is detachably engaged in the rotary shaft engaging groove 21 of

the support member 20 installed in the wheel insertion hole 11, it is needed to prevent the

rotary shaft 31 from being easily escaped from the rotary shaft engaging groove 21 in

order to prevent the wheel assembly 30 from being escaped from the support member 20.

In order to implement the above operation, the width of the groove of the rotary

shaft-engaging groove 21 is designed to be same as the diameter of the rotary shaft 31 for

thereby preventing an escape that may occur due to the friction. In another embodiment of

the present invention, a certain member may be provided to the support member 20, so

that the rotary shaft 31 is not escaped by the above member.

As shown in Figures 7 and 8, both sides of the rotary shaft 31 of the wheel

assembly 30 may be elastically supported by a tongs 41 formed in the rotary shaft engaging groove 21 of the support member 20 without a certain member for thereby

implementing a desired construction based on a simple structure. In the above

construction, it is possible to decrease a defective ratio due to a fabrication error.

Namely, when engaging the wheel assembly 30 to the support member 20, both

ends of the rotary shaft 31 are sequentially inserted into two rotary shaft-engaging

grooves 21. In the case that the portion of the support member 20 forming the engaging

groove 21 is implemented using the tongs 41 with a tongs structure, since both sides of

the rotary shaft 31 are supported by an elastic support force of the tongs portion 41, it is

possible to prevent the rotary shaft 31 from being escaped from the rotary shaft engaging

groove 21. Namely, it is possible to prevent the wheel assembly 30 from being escaped

from the support member 20 of the wheel insertion hole 11.

The construction of the escape assistant unit 50 will be described.

Since the wheel assembly 30 is prevented from being escaped from the support

member 20 by the free escape prevention unit 40, in the case that the wheel assembly 30

is disengaged in order to use the roller skate combined shoes according to the present

invention as common shoes, it is not easy to implement an easier escape.

Therefore, in the present invention, there is further provided an escape assistant

unit 50 for easily disengaging the rotary shaft 31 of the wheel assembly 30 supported by

an elastic support force of the tongs portion 41 of the support member 20.

In the present invention, since the wheel assembly 30 is attached and detached in

a vertical direction with respect to the support member 20 of the wheel insertion hole 11, the rotary shaft 31 of the wheel assembly 30 is attached and detached in a vertical

direction with respect to the rotary shaft engaging groove 21 of the support member 20.

Therefore, a certain unit is needed for supporting the operation that the rotary

shaft 31 is moved in an outer vertical direction in the lower surface of the shoe body 10,

so that the rotary shaft 31 of the wheel assembly 30 is easily escaped from the rotary shaft

engaging groove 21 of the support member 20.

In order to implement the above operation, the structure may be implemented in

such a manner that a certain member passes through the inner lower surface of the shoe

body 10 and pushes the wheel assembly 30. In this case, the escape assistant unit 50 is

engaged in the portion directly contacting with the user's feet for thereby decreasing a

wearing feeling.

As shown in Figures 12 through 14, the escape assistant unit 50 is preferably

engaged in a portion directly contacting with the user's feet. The escape assistant unit 50

includes a switch engaging hole 51 passing through in a direction of the support member

20 in a lateral surface of the body 10, a switch 52 operably inserted into the switch

engaging hole 51, a body 531 driven by the switch 52, an escape member 53 having an

inclination portion 532 extended from the body 531 and formed in such a manner that the

wheel assembly 30 is outwardly pushed when pressing and driving the switch 52, and a

tension spring 54 adapted to elastically support the body 531 of the escape member 53 in

such a manner that the switch 52 is protruded in an outer direction of the switch engaging

hole 51. The escape assistant unit 50 may pass through the both sides of the shoe body 10

or may pass one side surface. In the later case, the escape assistant unit 50 may be

installed in the side in which the tongs 41 of the support member 20 is formed, and may

be installed in the opposite side.

As shown in Figures 13 and 14, the escape assistant unit 50 is preferably

installed in the portion of the tongs 41 of the support member 20, so that the rotary shaft

31 of the wheel assembly 30 is pushed out when pressing and driving the switch 52.

Therefore, it is possible to more effectively use the structure of the support member 20.

Industrial Applicability

In the present invention, there is provided a certain unit capable of implementing

an easier engaging and disengaging operation of the wheel assembly. The present

invention is directed to providing a shoe formed in a structure that the roller skate

combined shoes are possible.

As the present invention may be embodied in several forms without departing

from the spirit or essential characteristics thereof, it should also be understood that the

above-described examples are not limited by any of the details of the foregoing

description, unless otherwise specified, but rather should be construed broadly within its

spirit and scope as defined in the appended claims, and therefore all changes and

modifications that fall within the meets and bounds of the claims, or equivalences of such

meets and bounds are therefore intended to be embraced by the appended claims.

Claims

Claims;

1. A roller skate combined shoe, comprising:

a shoe body 10 having a wheel insertion hole 11 in a lower center portion of a

heel;

a support member 20 inserted into the wheel insertion hole 11 and having a

rotary shaft-engaging groove 21 in an opposite surface;

a wheel assembly 30 having a rotary shaft 31 detachably engaged in the rotary

shaft engaging groove 21 and a wheel 32 being rotatable with respect to the center of the

rotary shaft 31;

a free escape prevention means 40 formed in the support member 20 for

preventing a free escape of the wheel assembly 30;

an escape assistant means 50 formed in the support member 20 for supporting an

escape of the wheel assembly 30 if necessary; and

an insertion hole filling member 60 inserted into the insertion hole 11 when the

wheel assembly 30 is escaped for thereby forming a flat structure in the lower surface of

the shoe body 10.

2. The shoe of claim 1, wherein said free escape prevention means 40 is a tongs 41

formed in the rotary shaft engaging groove 21 of the support member 20 for thereby

elastically supporting the rotary shaft 31 of the wheel assembly 30 at both sides.

3. The shoe of either claim 1 or claim 2, wherein said escape assistant means 50

includes:

a switch engaging hole 51 passing through in a direction of the support member

20 in the lateral side of the body 10;

a switch 52 operably inserted into the switch-engaging hole 51;

an escape member 53 having:

a body 531 driven by the switch 52; and

an inclination portion 532 extended from the body 531 and formed in such a

manner that the wheel assembly 30 is outwardly pushed when pressing and driving the

switch 52; and

a tension spring 54 for elastically supporting the body 531 of the escape member

53 in such a manner that the switch 52 is outwardly supported in an outer direction of the

switch-engaging hole 51.

4. The shoe of claim 3, wherein said escape assistant means 50 is formed in the

tongs 41 of the support member 20 in such a manner that the rotary shaft 31 of the wheel

assembly 30 is outwardly pushed when pressing and driving the switch 52.