KR20050051926A - Replaceable wheel for leisure sports - Google Patents

Abstract

Disclosed is a removable leisure wheel which can be used to replace a urethane wheel, comprising a hub comprising a first hub and a second hub inserted inward from both sides of the urethane wheel, the first hub and the second hub of the urethane wheel A removable leisure wheel is disclosed that is screwed together from the inside.

The present invention is to provide a removable leisure wheel that can replace the urethane wheel, it is possible to replace only the urethane wheel worn by use to reduce the cost, and to use a combination of various hubs and urethane wheels according to personal preference Make it possible.

Description

Removable leisure wheel {REPLACEABLE WHEEL FOR LEISURE SPORTS}

The present invention relates to a removable leisure wheel, and more particularly to a removable leisure wheel that can be used for replacement of the urethane wheel.

With the improvement of the national income level and the increase of leisure time, various outdoor leisure sports are booming. In particular, leisure sports such as in-line skates, skateboards, kickboards, etc., are leisure sports using a wheel-equipped device, and are a favorite field for lovers of dynamism and speed.

The most important element of the equipment used in the sport, such as inline skates, skateboards, kickboards, etc. is a wheel. 1 shows a leisure wheel commonly used in such mechanisms.

Referring to Figure 1a, such a leisure wheel is a schematic view, the bearing 10 for rotating the wheel while contacting the wheel axle, the spacer 11 for filling the space between the left and right bearings, forming a central skeleton of the wheel And a urethane wheel 17, which is an elastic member causing friction in contact with the hub 12 and the ground surface. In particular, the hub 12 is a part that serves to connect and support the wheel and the bearing, it must withstand the heat generated from the bearing and receives a lot of load, so a heat-resistant and durable material should be used. It is common to make nylon (polyamide resin). 1B is an assembly view in which these are assembled into one piece.

As can be seen from the above, the conventional leisure wheel is made of a hub and a urethane wheel integrally, it is impossible to use the separation and exchange. Therefore, when the urethane wheel is worn using the leisure wheel, both the hub and the urethane wheel should be discarded and replaced at once, which causes various problems.

The first and foremost problem is that as the demand for leisure wheels soars, the consumption and disposal of the wheels themselves increases. In particular, since the hub of the leisure wheel is made of polyamide and the polyurethane wheel is made of urethane, it is difficult to collect and recycle the wheels, which makes it difficult to dispose of the wheel. From the user's point of view, there is a cost burden from having to dispose of the entire wheel and buy a new one when the urethane wheel wears.

In addition, the conventional leisure wheels are mainly made of nylon, rather than expensive metals, because the entire wheel must be discarded after one use.

Nylon, which is a synthetic resin, is inferior in strength and heat resistance to metal, so the hub has to be used as a relatively large thickness in order to support the load applied and increase the thermal conductivity. The spacers had to be set aside to fix the left and right bearings. However, when the thickness of the wheel and the spacer must be used in this way, the weight of the wheel is increased, making it difficult to control, which in turn leads to deterioration of the wheel performance, which is undesirable.

On the other hand, as the base of the leisure population increases, the number of people enjoying inline skating increases and various types of inline skating with various functions and designs are spreading. However, some users want to make their own unique design, especially the wheel which is considered to be the most important in terms of function and appearance in inline skates. In order to use the wheel of this unique design for a long time alone, it must be durable and replaceable according to the wear of the urethane wheel. Existing wheel products cannot replace and use only the urethane wheel, which must be replaced by wear. Also had to be discarded together.

The present invention, in order to solve the problems of the prior art as described above, by replacing only the worn urethane wheel to reduce the replacement cost, the hub can be permanently used to save resources, removable leisure for the replacement of the urethane wheel To provide a wheel.

In addition, the present invention is to provide a removable leisure wheel that can be separated between the hub and the urethane wheel, which can be used freely changing a number of urethane wheels according to the use for one hub.

In addition, the present invention is to provide a removable leisure wheel that can enable the use of expensive alloy hub to thin the thickness of the wheel and to reduce the weight of the wheel.

The present invention is a leisure wheel comprising a bearing, a hub and a urethane wheel in order to achieve the above object, the hub and the first hub is inserted into the urethane wheel on both sides of the urethane wheel Comprising two hubs, the first hub and the second hub is screwed together in the inner side of the urethane wheel, comprising a fastening means for coupling the first hub and / or the second hub and the urethane wheel It is characterized by.

As described above, the hub as the first hub and the second hub, and using the fastening means of the urethane wheel through the configuration to assemble or remove the hub and urethane wheel, the removable leisure wheel of the present invention is a hub and urethane Since the wheels can be separated, only the urethane wheels can be used without replacing the entire wheel when the urethane wheels are worn. And because it can be used permanently without disposing of the hub, this can also result in cost and resource savings. In addition, a single hub can be used to make several urethane wheels suitable for use such as track, rod, and underwater urethane wheels. You can also exchange them freely. On the contrary, it is of course possible to change the hub of various designs and materials.

Hereinafter, the configuration of the present invention will be described in more detail.

In the present invention, the hub consists of a first hub and a second hub. One of the first hub and the second hub is formed with a female threaded portion, and the other is formed with a male threaded portion so that the first and second hubs are mutually screwed inside the inner circumferential surface of the urethane wheel. In an embodiment of the present invention, the first hub is in contact with the inner circumferential surface of the urethane wheel, and an internal thread is formed on the inner circumferential surface thereof. Of course, the reverse case (when male thread is formed in the first hub in contact with the inner circumferential surface of the urethane wheel) is also possible.

The fastening means of the present invention is to be engaged with the first hub and / and the second hub and the urethane wheel. Any member can be used as long as the member fastens the hub and the urethane wheel to each other. In one embodiment of the present invention, the fastening means is a protrusion formed on the outer circumferential surface of the first hub in contact with the urethane wheel and a main portion of the urethane wheel side which is fastened thereto correspondingly with the protrusion. In addition, in one embodiment of the present invention, the fastening means may be a groove formed in the seating portion of the urethane wheel and the flange formed on the hub side is mutually fastened. The protrusion formed on the outer circumferential surface of the first hub may include one formed in the axial direction and one formed in the rear portion of the web in a direction perpendicular to the wheel rotation axis direction. The recessed portion formed on the urethane wheel is also formed on the inner circumferential surface and seating portion of the urethane wheel at the same number and corresponding positions corresponding to the protrusions formed on the first hub. Moreover, two or more said protrusions are preferable. In one embodiment of the present invention, the protrusions are six.

Meanwhile, the first hub and the second hub are screwed together so that they are not separated from each other, but the first hub and the second hub do not separate from each other. It may be fixed to each other using a fixing member penetrating to the outer peripheral surface of the hub. The fixing member may be in the form of a screw. In addition, the fixing member may be penetrated to the inside of the urethane wheel beyond the outer peripheral surface of the first hub in contact with the inner peripheral surface of the urethane wheel.

In the present invention, since the urethane wheel can be attached and detached and the hub can be used permanently, the material of the hub used in the present invention is different from polyamide, which is mainly used in the prior art. It becomes possible. In the present invention, since the high-strength metal material can be used as the hub material, it is possible to reduce the thickness of the hub as compared to the conventional one, and therefore a spacer, which is a part for filling the remaining space between the two bearings on the wheel shaft, must be used. You do not have to do. As a result, in the present invention, the weight of the wheel can be reduced, thereby improving performance such as facilitating push. In addition, according to the user's taste, it is possible to create and use a luxury hub of your own unique design.

The urethane wheel used in the present invention refers to an elastic member that is grounded with the ground at the outermost side of the leisure wheel, and since it uses only a general name widely used in the art, the material is necessarily limited to urethane resin. Any elastic resin that can be used for the leisure wheel is not required.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention.

Figure 2 is a perspective view showing the assembly sequence between the parts as an embodiment of the leisure wheel of the present invention .

Referring to FIG. 2, the leisure wheel of the present invention includes an urethane wheel 200 which is an elastic member which is grounded at the outermost surface and a male thread inserted into the urethane wheel 200 from both sides of the urethane wheel 200. And a first hub 100 having a female thread formed on its inner circumferential surface to be screwed with the second hub 300. In addition, between the second hub 300 and the urethane wheel 200, specifically, between the web portion 302 of the second hub 300 and the seating portion 202 (see Fig. 3) of the urethane wheel 200. Circular rim member 250 is interposed. The rim member 250 is optional and may be interposed on both sides of the urethane wheel 200. The rim member 250 has a circular protrusion 255 is formed in the center, the circular protrusion 255 is fastened to a circular groove (not shown) formed in the seating portion 202 of the urethane wheel 200 It is fixed and serves as a washer for the second hub (300). In addition, instead of a circular protrusion, the rim member 250 may have a plurality of rectangular protrusions 265, and recesses 202 of the urethane wheel 200 may have corresponding recesses to each other. Can be combined.

Figure 3 shows a urethane wheel, of which Figure 3a is a front view, Figure 3b is a side view, Figure 3c is a perspective view. As illustrated, the inner circumferential surface 207 of the urethane wheel 200 is provided with six recesses 205 at equal intervals in the axial direction of the wheel. In addition, both sides of the inner circumference of the urethane wheel 200 is formed in the shape of the jaw lower than the surrounding portion 202, the web portion 102 of the first hub 100 is seated, the recess 205 The recess 206 is formed on the seating portion. The recess 206 is fastened to a protrusion 105 (refer to FIG. 4) formed on the outer circumferential surface of the first hub 100. In addition, the outer periphery of the seating portion 202 is formed with a circular protrusion receiving groove (groove, 203) is accommodated in the flange portion 101 of the first hub (100).

Next, a hub that is a characteristic component of the present invention will be described. The hub of the present invention includes a first hub 100 and a second hub 300 which are screwed to each other on the inner circumferential surface of the urethane wheel 200. 4 and 5, the first hub 100 and the second hub 300 are shown. The first hub 100 is a female hub and the second hub 300 is a male hub.

Referring to FIG. 4, 4a is a front view, FIG. 4b is a front perspective view, FIG. 4c is a side view, and FIG. 4d is a rear perspective view. A female thread 107 is formed on the inner circumferential surface of the first hub to which male threads formed on the outer circumferential surface of the second hub 300 are screwed. In addition, the outer circumferential surface 104 and the web portion 102 are formed with six protrusions 105 and 106 to which the recessed portions 205 and 206 of the urethane wheel 200 are fastened at equal intervals. The flange 101 which is bent downward is formed in the outer part of the web part 102. The flange 101 is coupled to the groove 203 formed on the seating portion of the urethane wheel 200.

Referring to FIG. 5, FIG. 5A is a front perspective view, FIG. 5B is a rear view, FIG. 5C is a rear perspective view, and FIG. 5D is a side view. A male thread 307 is formed on the outer circumferential surface of the second hub 300 so as to be coupled to the female thread formed on the inner circumferential surface of the first hub. In the center, a space 310 to which a bearing (not shown) and a wheel shaft (not shown) are coupled is formed by the wheel boss 320, and the inner circumferential surfaces of the wheel boss 320 and the hub are six arm members 315. Is formed.

In the assembly process of the wheel of the present invention described above, the urethane wheel 200 is first positioned at the center, and the first hub 100 is inserted into one side of each of the protrusions 105 and 106 and the recesses 205 and 206 formed on each side. And the opposite side is interposed between the rim member 250 and the second hub 300 is rotated and coupled as fastening the bolt to the nut. When the first hub 100 and the second hub 300 are screwed in, the web portion of the first hub 100 and the second hub 300 may have a seating portion 202 formed at an outer periphery of the urethane wheel 200. Tighten on both sides the hub (100, 300) and the urethane wheel 200 is fixedly coupled. Meanwhile, although not shown, a jaw and a groove are formed at the end points of the threads of the first hub 100 or the second hub 300 to tighten the first hub 100 by the rotation of the second hub 300. At this time, the jaw and the groove formed in the thread will be able to inform the completion of the rotation by the fastening operation or sound.

Removable leisure wheel of the present invention described above, when the urethane wheel 200 is worn by repeated use, it can be used by removing the hub to remove the urethane wheel 200 and replace with a new one.

The present invention is to provide a removable leisure wheel that can replace the urethane wheel, it is possible to replace only the urethane wheel worn by use to reduce the cost, and to use a combination of various hubs and urethane wheels according to personal preference Make it possible.

In addition, since the material of the hub cannot be made of expensive metal because it has to be discarded after one use, the hub has to be used as a large thickness to support the load applied due to the use of nylon. In the present invention, it is possible to permanently use the hub to use an expensive alloy material, and to reduce the thickness of the wheel can provide a lightweight wheel that is easy to control and push.

1 is a view showing a leisure wheel of the prior art,

2 is a view showing an embodiment of the removable leisure wheel of the present invention,

3 is a view showing another embodiment of the removable leisure wheel of the present invention,

4 is a view showing another embodiment of the removable leisure wheel of the present invention.

Claims (6)

In the leisure wheel comprising a bearing, a hub and a urethane wheel, the hub is composed of a first hub and a second hub inserted into the urethane wheel on both sides of the urethane wheel, the first hub and the first Removable leisure wheel, characterized in that the two hubs are screwed to each other inside the urethane wheel, the fastening means for engaging the first hub and / or the second hub and the urethane wheel. The inner peripheral surface of the first hub is formed with a female screw, the outer peripheral surface is formed with a protrusion, the outer peripheral surface of the second hub is formed with a male screw, the inner peripheral surface of the urethane wheel is the protrusion. Corresponding recess is formed, The protrusion of the first hub is coupled to the recess of the urethane wheel and the second hub is screwed to the first hub, characterized in that the removable leisure wheel. The inner peripheral surface of the first hub is formed with a male thread, the outer peripheral surface is formed with a protrusion, the outer peripheral surface of the second hub is formed with a female thread, the inner peripheral surface of the urethane wheel is the protrusion. Corresponding recess is formed, The protrusion of the first hub is coupled to the recess of the urethane wheel and the second hub is screwed to the first hub, characterized in that the removable leisure wheel. According to any one of claims 1 to 3, wherein one or both inner circumference of the urethane wheel is formed with a lower jaw lower than the periphery, which is the web portion of the first hub and / or second hub Removable leisure wheel, characterized in that seated. According to claim 4, Removable leisure, characterized in that the recess formed on one side or both sides of the urethane wheel is formed with a groove is coupled to the flange formed on the edge of the web portion of the first hub and / and the second hub. 5. The rim member according to claim 4, wherein a rim member is interposed between a seating portion formed on one side or both sides of the urethane wheel and a web portion of the first hub and / or second hub seated on the seating portion, wherein the rim member is seated on the rim member. Removable leisure, characterized in that a circular protrusion protruding to the side, and the seating portion is formed with a circular protrusion receiving groove is fastened to the circular protrusion formed in the rim member.