KR100535716B1 - Wheel of inline skate - Google Patents

Abstract

The present invention; It relates to a wheel for inline skating (Wheel) that rotates located in the lower portion of the inline skate used in health promotion and leisure sports.

As such, the present invention; A rim having an annular tire formed on an outer circumferential surface thereof; A disk-shaped spoke for supporting the inner circumferential surface of the rim; A spacer for keeping a gap fitted between the left and right bearings to maintain a gap between the left and right bearings and the left and right bearings; A support hub on which the left and right bearings and the spacer for holding the spacer are seated, and the spokes are fitted on one side of the outer circumferential surface to support the one side and a spoke support protrusion and a male thread; A fastening cap having a female thread formed on an inner circumferential surface of one end thereof to be screwed to the male thread of the support hub, and the other side of the spoke being supported at an end thereof; And a hollow tube-shaped support tube supporting the inner circumferential surface of the left / right bearing and the spacer for maintaining the spacing.

According to the invention; Due to breakage of one of the parts constituting the wheel or wear of the tire, it is possible to replace only worn or broken parts without replacing the wheel entirely when replacing the wheel, thereby reducing the replacement cost.

Description

Wheel for inline skates {wheel of inline skate}

The present invention relates to a wheel for inline skating, and more particularly, to a wheel (Wheel) that is located in the lower portion of the inline skate used for health promotion and leisure sports.

Inline skates are generally " After forming a plurality of fixing holes on both sides of the "-shaped frame, and then a plurality of wheels are rotatably laid on the fixed shaft that is inserted / fastened to the fixing holes, respectively, from a variety of children to the elderly It is being used as a popular leisure item among the age groups.

Such types of inline skates are largely divided into adults and children, which are closely related to the size of the bearing constituting the wheel according to the load of the user using the inline skates.

FIG. 1 is a cross-sectional view of a general wheel used for inline skating, and accordingly, the wheel 100 for inline skating has a concentric inner ring portion 10 and an outer rim. a hub 50 consisting of rim portions 20 and radial spokes as connecting portions 30 extending between the inner ring portion 10 and the outer rim portion 20, and the hub 50. It is made of a tire 60 of a urethane material disposed to surround the outer rim 20 of the.

In this case, two bearings 70a and 70b are mounted in the inner ring portion 10 of the hub 50, and the cylindrical portions for maintaining the gap between the bearings 70a and 70b are disposed between the bearings 70a and 70b. Spacers 80 are provided. The axle 90 is inserted through the spacer 80 and the bearings 70a and 70b.

This axle 90 is " It is inserted into a plurality of fixing holes (not shown) formed on both sides of the "shaped frame, and fixed with the nut 92.

However, the conventional inline skate wheel 100 is made of a plastic material of the hub 50 is weak in strength, the hub of the plastic material 50 and the urethane tire 60 is provided with a lot of weight Wearing in-line skates provided with the same wheel has a problem in that it causes fatigue to the joints such as the knee by the weight of the wheel.

On the other hand, such a conventional wheel 100 has a spoke of the hub 50 is provided radially in the shape of a fan, but also made of a plastic material has a problem that is easily broken due to weak external shocks.

In addition, both the hub 50 on which the bearings 70a and 70b are seated and the tire 60 made of urethane are integrally formed so that failure of the hub 50 or the bearings 70a and 70b and / or the tire 60 may occur. When the wear occurs, such as the general public who is not a repair expert is not easy to replace or repair a part because the entire wheel 100 is replaced, there is also a problem that the repair cost increases.

On the other hand, if the in-line skate is used for a long time, the tire of the wheel is worn, and at this time, even though other parts are not damaged, since the wheel is integrally formed with the hub, there is a problem that the wheel must be replaced entirely.

Accordingly, an object of the present invention is to provide a wheel for inline skating that can be easily replaced only when the tire wears or breaks some parts.

The present invention relates to an inline skate wheel, comprising: a rim having an annular tire formed on an outer circumferential surface thereof; A disk-shaped spoke for supporting the inner circumferential surface of the rim; A spacer for keeping a gap fitted between the left and right bearings to maintain a gap between the left and right bearings and the left and right bearings; A support hub on which the left and right bearings and the spacer for holding the spacer are seated, and the spokes are fitted on one side of the outer circumferential surface to support the one side and a spoke support protrusion and a male thread; A fastening cap having a female thread formed on an inner circumferential surface of one end thereof to be screwed to the male thread of the support hub, and the other side of the spoke being supported at an end thereof; And a hollow tube-shaped support tube supporting the inner circumferential surface of the left / right bearing and the spacer for maintaining the spacing.

At this time, the rim and the spacer for maintaining the spacing, the support hub, the fastening cap and the support tube is aluminum metal produced by a hard anodizing technique, the spoke is characterized in that the material is carbon.

In addition, according to another embodiment of the present invention, the rim is formed on the outer peripheral surface of the annular tire; A disk-shaped spoke for supporting the inner circumferential surface of the rim; A hollow tube-shaped support tube in which a gap maintaining protrusion for maintaining a gap between left and right bearings is formed at the center of the outer circumferential surface; A support hub on which the left and right bearings and the spacer for holding the spacer are seated, and the spokes are fitted on one side of the outer circumferential surface to support the one side and a spoke support protrusion and a male thread; A female cap is formed on one end of the inner circumferential surface of the support hub so as to be joined to the male thread of the support hub, and a fastening cap on which the other side of the spoke is supported at the end thereof.

And according to another embodiment of the present invention, the rim is formed in the outer peripheral surface of the annular tire; A disk-shaped spoke for supporting the inner circumferential surface of the rim; A spacer for keeping a gap fitted between the left and right bearings to maintain a gap between the left and right bearings and the left and right bearings; An accommodating part is formed on which the left / right bearing and the spacer for space keeping are seated, and a bearing seating surface is formed on both ends of the accommodating part, and a bearing seating surface is extended to seat the left and right bearings. Spoke support projection and the support hub is formed with a male thread; A support tool having a female thread formed on an inner circumferential surface of the support hub so as to be joined to an external thread of the support hub, and supporting the other side of the spoke; And a hollow tube-shaped support tube supporting the inner circumferential surface of the left / right bearing and the spacer for maintaining the spacing.

At this time, one end of the spacer for spacer space is characterized in that it further comprises an expansion spacer fitted to one end of the spacer for use when the gap between the left / right bearing is large.

With reference to the accompanying drawings, the wheel for inline skates according to the present invention will be understood by the embodiments described in detail below.

Figure 2 is a perspective view of the wheel showing the first embodiment of the wheel for inline skates according to the present invention, Figure 3 is a cross-sectional view of the wheel for inline skates shown in Figure 2, Figure 4 is a wheel shown in Figure 1 5 is a cross-sectional view of the wheel for inline skating shown in FIG. 4, and FIG. 6 is a front view of the inline skate in a state in which the wheel is fastened to a fixed shaft, and FIG. Fig. 8 is a cross-sectional view of a wheel showing a second embodiment of an inline skate wheel according to the present invention, and Fig. 8 is an exploded cross-sectional view of the wheel showing a third embodiment of an inline skate wheel according to the present invention. 8 is an exploded cross-sectional view of the wheel shown in Figure 8, Figure 10 is an exploded cross-sectional view of the wheel showing a fourth embodiment of the wheel for inline skates according to the present invention, Figure 11 is a cross-sectional view of the wheel shown in Figure 10, 12 is an inline skate according to the present invention The figure which shows the cross section of the tool used at the time of component replacement of the wheel for drawing.

2 to 5 are diagrams illustrating a first embodiment of an inline skate wheel according to the present invention.

According to this, the in-line skate wheel 100 has left / right bearings 110 and 112 for rotating the wheel 100, disc-shaped spokes 120, and the bearings 110, 112 and spokes 120 at the center thereof. It comprises a hub assembly for supporting, a rim (130) supported on the edge of the edge of the spoke 120, and an annular tire (140) formed along the outer circumferential surface of the rim (130).

At this time, the left and right bearings 110 and 112 are supported by the hub assembly, but spacers 160, 162a and 162b for maintaining a gap between the left and right bearings 110 and 112 are between the left and right bearings 110 and 112, and It is provided on the outer surface of the left and right bearings (110, 112).

Hereinafter, the above components will be described in more detail.

First, the hub assembly consists of a support hub 150 and a fastening cap 152 screwed to the support hub 150.

The support hub 150 is formed with an accommodating part 154 into which the left and right bearings 110 and 112 and the spacer 160 for maintaining the spacing are inserted, and one side surface of the spoke 120 on the outer circumferential surface thereof. The spoke support protrusion 150a for supporting 120a is formed to protrude outward from the center, and the male thread 156 is formed on the outer circumferential surface of the inlet of the receiving portion 154 so that the fastening cap 152 can be screwed. do.

In addition, the support hub 150 has a through hole 158a through which the support tube 170 can be fitted is formed at the center of the inner wall surface 157 of the receiving portion 154.

In addition, the fastening cap 152 has a female thread 155 corresponding to the male thread 156 of the support hub 150 formed along an inner circumferential surface thereof, and a through hole 158b is formed at the other end wall surface 159. Is formed.

At this time, the left and right bearings 110 and 112 fitted to the inner receiving portion 154 of the support hub 150 are composed of inner rings 110a and 112a and outer rings 110b and 112b. Balls 110c and 112c are rotatable between the inner rings 110a and 112a and the outer rings 110b and 112b.

Accordingly, the support hub 150 and the coupling cap 152 coupled thereto support the outer rings 110b and 112b of the left and right bearings 110 and 112 so that the support hub 150 and the support hub 150 can be rotated together. The diameters of the through-holes 158a and 158b formed on both side walls 157 and 159 of the fastening cap 152 are expanded.

On the other hand, the support hub 150 and the fastening cap 152 is fitted with a cylindrical support tube 170.

Accordingly, the left bearing 110, the spacer for maintaining the gap 160, and the right bearing 112 are sequentially inserted into the outer circumferential surface 170a of the support tube 170, and the auxiliary spacers 162a and 162b are respectively disposed at both ends thereof. Is fastened.

On the other hand, when the support hub 150 and the fastening cap 152 of the hub assembly is screwed, it is constant between the spoke support protrusion 150a of the support hub 150 and one end 152a of the fastening cap 152. The spoke seating part 151 which is a space is formed.

Therefore, the spoke seat 120 of the hub assembly is fitted with a disc-shaped spoke 120 is fixed.

At this time, the spoke 120 is manufactured using a carbon material having a greater strength than a general plastic material, and has a disc shape and maintains a predetermined interval at one side thereof, and a plurality of bolt through holes 122 are formed and the body thereof. A central through hole 124 is formed at the central portion of the hub assembly so as to be fitted to the spoke seating portion 151 of the hub assembly.

On the other hand, the rim 130 is supported on the edge of the spoke 120 is provided with a tire 140 in the state that the wear resistance and elasticity is increased by using an additive such as carbon black in the rubber to the outside. Of course, the tire 140 is also possible to use a urethane material, it is more preferred to use a rubber with carbon black excellent in wear and strength.

In addition, the inner surface of the rim 130 is formed with a number of spoke fixtures 132 on which the spoke 120 is seated to maintain a predetermined interval in the axial direction. In this case, the spoke fixing member 132 is provided with a bolt fixing hole 132a corresponding to the bolt through hole 122 of the spoke 120.

On the other hand, the hub assembly, the spacer (160, 162a, 162b), the rim 130 and the support tube 170 is a hard anodizing method for converting the aluminum metal surface into alumina ceramic using an electrochemical method The aluminum metal itself is oxidized and converted into alumina ceramic, and the metal surface is stronger than steel and wear-resistant than hard chromium plating.

Hereinafter, the assembling and disassembling process of the inline skate wheel according to the present invention will be described in detail with reference to FIGS. 2 to 6.

Inline skate wheel 100 according to the present invention first insert the left bearing 110 and the spacer 160 and the right bearing 112 in order to the outer peripheral surface (170a) of the cylindrical support tube 170 in order The outer ring 110c of the left bearing 110 is inserted into the receiving portion 154 of the support hub 150 to closely contact the inner wall surface 157 of the receiving portion 154. Then, the spokes 130 are fitted to the outer circumferential surface of the support hub 150 so that one side surface 120a of the spokes 120 is in close contact with the spoke support protrusion 150a, and the fastening cap 152 is supported by the support hub ( By screwing to 150, the spoke support protrusion 150a of the support hub 150 and the end 152a of the fastening cap 152 support the other side 120b of the spoke 120.

At this time, the spoke 120 is a spoke fixture of the rim 130 is provided with a tire 140 on the outer peripheral surface of the spoke 120 before fixing to the hub assembly consisting of the support hub 150 and the fastening cap 152 ( After adjusting the position so that the bolt fixing hole 132a provided in the 132 and the bolt through hole 122 of the spoke 120 coincide, the spoke in the state where the bolt 180 is fastened using a tool such as a hexagonal wrench ( The inner circumferential surface 124a of the central through hole 124 of 120 is coupled to fit to the outer circumferential surface 150b of the support hub 150.

Then, the auxiliary spacers 162a and 162b for supporting the inner rings 110a and 112a of the left and right bearings 110 and 112 are fitted to both ends of the cylindrical support tube 170, respectively.

The wheel 100 in the assembled state is fixed to the lower frame 2 of the inline skate 1 by passing the axle 190 into the support tube 170.

Therefore, when the inline skate 1 is used, the support pipe 170, the spacers 160, 162a and 162b and the inner rings 110a and 112a of the left and right bearings 110 and 112 are fixed and the left and right bearings 110 and 112 are fixed. Outer ring (110b, 112b) and hub assembly (150, 152) and spoke 120 and rim 130 of the will be to be integrally rotated.

In this case, the bearings 110 and 112 generally use 608 bearings, which are one of the known bearings, when the inline skate wheel 100 is for adults, and in the case of children, 688 bearings having a smaller diameter than the 608 bearings are generally used. Although their sizes are different from each other, the size of the spacer 160 for maintaining the spacing and the size of the hub assembly 150 and 152 accommodating portion 154 may vary, but the same principle may be used.

The outer diameter of the wheel 100 manufactured in the above order is preferably configured in various sizes, such as 110mm, 100mm, 90mm, 84mm, 80mm. At this time, the change in size is preferably used to manufacture the diameter of the rim 130 and the spoke 120, the tire 140 is provided on the outside.

On the other hand, the width of the wheel 100 is 24.2 mm in general, but is also preferably manufactured in 10 mm, one of the professional use.

When replacing any part of the wheel assembled as described above, after removing the fastening cap 152 is formed on the inner circumferential surface of the through hole 158a of the receiving wall surface 157 of the support hub 150 When the male thread 202 as shown in FIG. 12 is fastened to the female thread 158b and the handle 204 is slowly turned after the T-shaped tool 200 is fastened to the outer peripheral surface of the one end, one end surface of the tool is shown. 210 slowly pushes the sides of the left bearing 110 to easily separate the bearings 110 and 112, the spacer 160 for maintaining the gap, and the support tube 190 from the support hub 150 without any damage.

In addition, when the parts are fastened, the bearings 110 and 112 are inserted into the receiving portion 154 instead of the fastening cap 152 to the support hub 150, and the settling tool 220 is screwed and the "T" shaped tool 200 ) Is fitted into the fastening hole 222.

On the other hand, Figure 7 is a view showing a second embodiment of the wheel for inline skates according to the present invention.

According to this, the spacer does not have the spacer for maintaining the same distance as in the first embodiment, and the spacer 172 is provided in the center of the outer circumferential surface 170a of the support tube 170 to perform the same function as the spacer. Maintain a gap between the bearings 110 and 112.

8 to 9 are diagrams illustrating a third embodiment of an inline skate wheel according to the present invention.

According to this, the support hub 150 has an accommodating part 153 in which the spacer 160 for maintaining the spacing is formed therein, and the bearing seating surface (110 and 112) can be seated by extending both ends thereof. 153a and 153b are formed, and the spoke support protrusion 150a and the male thread 156 are formed on the outer circumferential surface 150b of the support hub 150.

Accordingly, the bearing seating surfaces 153a and 153b support the outer races 110b and 112b of the left and right bearings 110 and 112.

In addition, the male screw thread 156 is fitted with a support member 230 having a female thread thread 230a formed on an inner circumferential surface thereof so that the spoke 120 may be supported.

At this time, the support pipe 170 for supporting the inner ring (110a, 112a) of the left and right bearing (110, 112) and the spacer 160 for maintaining the gap is fitted. In addition, it can be seen that forming the spacing maintaining protrusion (not shown) on the outer circumferential surface of the support tube 170 instead of the spacing spacer 160 belongs to the same principle.

10 to 11 are diagrams illustrating a fourth embodiment of an inline skate wheel according to the present invention.

Accordingly, in the above-described third embodiment, when the left / right bearings 110 and 112 are for adults, 608 bearings are used. Therefore, only one spacer 160 for space keeping is used because the bearings are large. In the case of using a 688 bearing having a smaller diameter than the 608 bearing is generally used when manufacturing the children's wheel one end of the spacer 160 for maintaining the gap to maintain the gap between the left and right bearings (110, 112) The expansion spacers 165 are further coupled to each other so as to maintain a larger gap therebetween.

At this time, the male thread 160b is formed on the outer circumferential surface 160a of the one end of the spacer 160 for spacing and the female thread 165a is formed on the inner circumferential surface of the one end of the spacer 165 for expansion. It will improve the bonding force.

Since the gap is maintained by using the expansion spacer 165 as described above, the gap can be used as it is without wasting the previously manufactured gap maintaining spacer 160.

As described above, embodiments of the present invention have been described in detail, but the scope of the present invention is not limited thereto, and the scope of the present invention extends to the range substantially equivalent to the embodiments of the present invention.

According to the present invention as described above, since the hub assembly constituting the wheel for inline skates, spokes, parts such as rims and bearings on which the tires are formed, are separated, such as breakage of any one of these parts or wear of the tires, etc. Therefore, when replacing wheels, only the worn or damaged parts can be replaced without having to replace the wheels entirely, thereby reducing the replacement cost.

In addition, the spokes constituting the wheel is made of carbon material, and the rim, the hub assembly, the spacer, and the support tube are made of a hard anodizing method using aluminum metal, which is light and excellent in wear resistance.

1 is a cross-sectional view showing a typical inline skate wheel.

Figure 2 is a perspective view of the wheel showing the first embodiment of the wheel for inline skates according to the present invention.

3 is a cross-sectional view of the inline skate wheel shown in FIG.

4 is an exploded perspective view of the wheel shown in FIG.

5 is a cross-sectional view of the wheel for inline skating shown in FIG. 4.

6 is a front view of the inline skate in a state where the wheel is fastened to the fixed shaft according to the present invention.

Figure 7 is a cross-sectional view of the wheel showing a second embodiment of the wheel for inline skates according to the present invention.

Figure 8 is an exploded cross-sectional view of the wheel showing a third embodiment of the wheel for inline skates according to the present invention.

9 is a cross-sectional view of the wheel shown in FIG.

10 is an exploded cross-sectional view of the wheel showing the fourth embodiment of the wheel for inline skating according to the present invention.

11 is a cross-sectional view of the wheel shown in FIG.

12 is a view showing a tool used when assembling and disassembling the wheel according to the present invention.

*** Description of the symbols for the main parts of the drawings ***

100: wheel 110: left bearing

112: right bearing 120: spoke

130: rim 140: tire

150: support hub 152: fastening cap

160: spacing spacer 162a, 162b: auxiliary spacer

Claims (5)

A rim having an annular tire formed on an outer circumferential surface thereof; A disk-shaped spoke for supporting the inner circumferential surface of the rim; A spacer for keeping a gap fitted between the left and right bearings to maintain a gap between the left and right bearings and the left and right bearings; A support hub on which the left and right bearings and the spacer for holding the spacer are seated, and the spokes are fitted on one side of the outer circumferential surface to support the one side and a spoke support protrusion and a male thread; A fastening cap having a female thread formed on an inner circumferential surface of one end thereof to be screwed to the male thread of the support hub, and the other side of the spoke being supported at an end thereof; In-line skate wheel, characterized in that consisting of; support tube of the hollow tube shape for supporting the inner circumferential surface of the left and right bearing and the spacer for maintaining the gap. The method of claim 1, The rim and the spacer for maintaining the spacing, the support hub, the fastening cap and the support tube is an aluminum metal produced by a hard anodizing technique, the spokes are characterized in that the material is carbon wheel. A rim having an annular tire formed on an outer circumferential surface thereof; A disk-shaped spoke for supporting the inner circumferential surface of the rim; A hollow tube-shaped support tube in which a gap maintaining protrusion for maintaining a gap between left and right bearings is formed at the center of the outer circumferential surface; A support hub on which the left and right bearings and the spacer for holding the spacer are seated, and the spokes are fitted on one side of the outer circumferential surface to support the one side and a spoke support protrusion and a male thread; And a fastening cap having a female thread formed at an inner circumferential surface of one end thereof to be joined to an external thread of the support hub and supporting the other side of the spoke at an end thereof. A rim having an annular tire formed on an outer circumferential surface thereof; A disk-shaped spoke for supporting the inner circumferential surface of the rim; A spacer for keeping a gap fitted between the left and right bearings to maintain a gap between the left and right bearings and the left and right bearings; An accommodating part is formed on which the left / right bearing and the spacer for space keeping are seated, and a bearing seating surface is formed on both ends of the accommodating part, and a bearing seating surface is extended to seat the left and right bearings. Spoke support projection and the support hub is formed with a male thread; A support tool having a female thread formed on an inner circumferential surface of the support hub so as to be joined to an external thread of the support hub, and supporting the other side of the spoke; In-line skate wheel, characterized in that consisting of; support tube of the hollow tube shape for supporting the inner circumferential surface of the left and right bearing and the spacer for maintaining the gap. The method of claim 4, wherein One end of the spacer for spacer maintenance further comprises an expansion spacer fitted to one end of the spacer for use when the gap between the left and right bearings is large.