KR200199653Y1 - Hula-hoop - Google Patents

Abstract

end. Fields to which the invention described in the claims belong:

Multi-connection hula hoop

I. The technical challenge the invention is trying to solve:

Hula hoop with a connection method using a fastening bolt induces a strong bond with ease and durability.

All. The gist of the solution of the design:

By manufacturing the bolt using a material having a strength different from that of the main body, and forcibly coupling the bolt to the main body, it is not necessary to form the structure of the nut corresponding to the bolt.

Description

Hula hoop {HULA-HOOP}

The present invention relates to a hula hoop, and more particularly, to a hula hoop formed by connecting a plurality of circular arcs.

In general, a hula-hoop is a type of exercise device that uses a waist or neck to round a plastic round rim.

As described above, the shape and structure of the hula hoop has been kept constant from the time of development until recently.

1 is a perspective view of a conventional hula hoop (1), as shown in the figure, the body (2) is formed in a ring shape as a whole by a connecting portion (A) for both ends connected to each other by a plastic tube The diameter is much larger than the waist of the user.

The hula hoop 1 as described above is continuously rotated by the centrifugal force of the main body 1 by repeatedly giving the elasticity to the waist while the user is wearing it on the waist and repeatedly rotating the hula hoop 1.

Therefore, as the user continuously rotates the hula hoop 1 by using the elasticity of the waist, natural movement is performed.

However, since the size of the conventional hula hoop 1 shown in FIG. 1 is fixed, it is difficult to obtain a sufficient exercise effect due to the hula hoop 1 when the user changes. That is, when the user is a postmark, the size of the main body 2 is so large that it is not balanced.

In addition, since the hula hoop (1) occupies a large volume in shape, it was inconvenient to move to the outside.

In order to improve the above problems, as shown in FIG. 2, a separate type of hula hoop 10 using a plurality of circular arcs 4 connected to each other has been manufactured.

Looking at the configuration of the detachable hula hoop 10, each arc portion (4, 4 ') has an insertion portion 8 and the coupling hole (6) at both edges, a plurality of crimping in the insertion portion (8) Protuberances are formed.

FIG. 3 is a perspective view illustrating a coupling process of the detachable hula hoop 10 shown in FIG. 2, and is coupled through an insertion part 8 and a coupling hole 6 formed in each arc part 4 and 4 ′, respectively. do. That is, the compression protrusions 3 formed on the insertion portion 8 are coupled by forcibly fitting the coupling holes 6.

The above-described detachable hula hoop 10 is separated into a plurality of arc portions 4 and 4 'for ease of sale or packaging. Accordingly, there is some convenience in terms of improving the mobility of the split type hula hoop 10.

However, the detachable hula hoop 10 could not be easily modified to a size to suit the taste of various users. In addition, the pressing protrusion 3 formed in the inserting portion 8 may be worn and repeatedly used when the coupling / removal with the coupling hole 6 is repeated. Therefore, there is a disadvantage that the deformation of the body can occur.

In order to solve the above problems, that is, deformation of the main body due to wear of the crimping protrusion by repeated coupling / separation, the inventors of the present invention also have a bolt shape at the edge as disclosed in Utility Model No. 99-6539. A hula hoop with a thread and a goal is proposed.

That is, as shown in FIG. 4, a first insertion hole 130 having a bolt-shaped thread and a valley is formed at one edge of the arc portion 110, and preferably, the first insertion portion 130. And a second insertion hole 140 having a key 141 extending to a smaller diameter. The key 141 is preferably formed in the longitudinal direction of the arc portion.

In addition, a key groove (not shown) is preferably formed at a predetermined distance therein, and a nut portion 150 having a thread and a valley at a corresponding edge of the adjacent arc portion 120 is provided near the edge of the arc portion where the key groove is formed. It is formed independently of the arc portion 120 and is movable in the longitudinal direction. In addition, a protrusion 160 that prevents the nut part 150 from being separated is formed at the end of the circular arc part 120 in which the nut part 150 is formed.

However, since this design uses a lot of manufacturing processes and complicated shapes, the cost of the product may increase.

The present invention has been made to solve the above-described problems, the purpose of providing a hula hoop that is easy to manufacture, easy to adjust the size in use by users of various physique.

It is also an object of the present invention to provide a hula hoop that can be transported more efficiently by improving the structural disadvantages of the above-described conventional hula hoop.

In addition, the purpose is to provide a hula hoop simple to manufacture, easy disassembly / assembly, and durable.

1 is a perspective view showing a conventional hula hoop.

Figure 2 is a coupling diagram showing a conventional split hula hoop.

3 is an enlarged plan view of a portion A of FIG. 2;

4 is a view showing a coupling relationship of a conventional detachable hula hoop.

5 is a view showing a hula hoop according to the present invention.

Figure 6 is a view showing a cross section of one arc portion of the hula hoop according to the present invention.

7 is an enlarged cross-sectional view of a portion corresponding to the second coupling part of FIG. 6.

<Description of the symbols for the main parts of the drawings>

200: second coupling portion 210: first coupling portion

202: body coupling portion 204: fixing band

206: nut part 208: fixing bolt

112: body

In order to achieve the above object, in the present invention, as a circular hula hoop having a plurality of body portions each separated into an arc shape, extending integrally with each of the body portion 112, the outer diameter smaller than the body portion 112 A first coupling portion 210 having a bolt shape having a thread formed at an outer diameter thereof; 1) a body fixing portion 202 having a smaller outer diameter than the body portion 112 in the longitudinal direction of the body portion 112 and a hole formed therein; 202 is forcibly fitted to the inner diameter through the hole of the fixing bolt 206 having a protrusion 230 protruding in the circumferential direction at the end of the direction facing the other body portion, and 3) of the fixing bolt 206 A ring-shaped nut part 208 formed at one end with a fixed end 232 protruding in an inner circumferential direction so as to be caught by the protrusion 230 and larger than an outer diameter, and 4) an outer portion of the body fixing part 202. A second coupling part having an outer diameter substantially the same as the outer diameter of the body part 112, and including a fixing band 204 which is in contact with a fixed end 232 of the ring-shaped nut part 208. 200, a hula hoop is provided.

That is, it is a feature of the present invention to use bolts and nuts as fastening means for fastening the respective arc portions.

Another aspect of the present invention is to fasten each arc portion, there is no limit to the number of the arc portion.

In other words, by appropriately selecting and fastening the number of arc portions according to the user's physique, it is another feature of the present invention that various users such as small people or large people can use them according to their needs.

In addition, the main body may have a wave shape, or may have a usual ring shape.

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

5 is a perspective view showing the hula hoop 100 according to the present invention, it can be seen that the overall shape is a ring shape when looking at the shape of the perspective view.

In addition, the hula hoop 100 is composed of a plurality of arc portions (110, 120) that can be separated, each arc portion 110 is assembled with the adjacent arc portion 120 through a predetermined connecting means.

The arc portion 110 has different connecting portions at both edges, and the structure thereof will be described below.

6 is a cross-sectional view of one arc portion 110 of the plurality of arc portions constituting the hula hoop 100 according to the present invention, the arc portion 110 is the body portion 112 and the body portion First and second coupling parts 210 and 200 are formed at both edges of the 112.

The first coupling portion 210 has a smaller diameter than the body portion 112, and is configured in a bolt shape having a thread and a valley integrally with the body portion 112.

On the other hand, the second coupling portion 200 is formed with a coupling means for coupling with the bolt formed on the first coupling portion 210 of the adjacent arc portion (not shown).

That is, the structure of the second coupling part 200 has a diameter smaller than the diameter of the body part 112 integrally with the body part 112 and the body fixing part 202 extended, and the first coupling part Ring-shaped nut 208 having a thread and a valley formed on an inner circumferential surface corresponding to 210, Fixing bolt 206 for fixing the ring-shaped nut 208 to the body fixing portion, and the body fixing portion It consists of a fixing band 204 surrounding the (202).

Here, the ring-shaped nut 208 and the fixing band has an outer diameter substantially the same as the body portion 112.

And, the end of the body fixing portion 202 is drilled, the fixing bolt 206 is coupled to the drilled portion of the body portion 202.

The ring-shaped nut part 208 constituting the second coupling part 200 may be rotated independently of the body part 112 even when the ring-shaped nut part 208 is fixed to the body part 112. Rotation of 208 engages the first engagement portion of the adjacent arc portion.

FIG. 7 is a coupling diagram illustrating the coupling relationship between the second coupling part 200 of FIG. 6 and the portion B of FIG. 5, and shows the relationship between the second coupling part 200 of the hula hoop according to the present invention.

First, referring to the function of each part constituting the second coupling portion 200, first, the nut portion 208 is coupled to the first coupling portion to function to substantially secure each arc portion, the fixing The bolt 206 serves to fix the nut part 208 to the body fixing part 202 of the body part 112.

Here, the fixing bolt 206 is formed with a protrusion 230, the nut portion 208 is formed with a fixed end 232 of the shape corresponding to the protrusion 230.

That is, the nut part 208 is fixed to the body part 112 by the combination of the protrusion 230 formed on the fixing bolt 206 and the fixing end 232 formed on the nut part 208.

On the other hand, the fixing bolt 206 is coupled to the inner surface of the body fixing portion 202 to fix the nut portion 208 to the body portion 112, at this time, the body fixing portion 202 The inner side of the fixing bolt 206 is not formed any portion corresponding to the thread and the valleys. Therefore, the present invention adopts a method of forcibly rotating the fixing bolt 206 to fix the fixing bolt 206 to the body fixing part 202 to couple the fixing bolt 206 to the body fixing part 202.

In other words, in the present invention, the fixing bolt 206 is forcibly coupled to the inner surface of the body fixing part 202 formed at one end of the body part 112 and the fixing bolt 206. Rotate to artificially form a tab on the inner surface of the body fixing portion 202 is adopted.

To this end, in the present invention, the fixing bolt 206 uses at least a stronger material than the body portion 112.

ABS fixing (Acrylonitril Butadiene Styrene resin) is used as the fixing bolt 206, a weaker polyethylene resin (polyethylene resin) and the like is used as the material of the body portion.

On the other hand, the fixing band 204 is coupled to the outer surface of the body fixing portion 202, the function of preventing the shape of the body fixing portion 202 is deformed by the coupling of the fixing bolt 206. Done. That is, since the body fixing portion 202 is formed integrally with the body portion 112, a material weaker than the fixing bolt 206 is used.

Therefore, when the fixing bolt 206 is inserted into the body fixing part 202, the body fixing part 202 is opened as much as the difference between the diameter and the fixing bolt 206, At this time, the coupling force of the fixing bolt 206 and the body fixing portion 202 can be weakened. To this end, by attaching the fixing band 204 to the outside of the body fixing portion 202, to prevent the body fixing portion 202 from spreading, the fixing bolt 206 and the body fixing portion 202 It will function to strengthen the bond with.

Looking at the coupling order of the components of the second coupling portion described above, first, the fixing band 202 is coupled to the outer surface of the body fixing portion 202, and then, the fixing bolt 206 is the nut portion 206 After coupling with), the fixing bolt 206 protruding by coupling with the nut portion 206 is forcibly rotated to the inner surface of the body fixing portion 202 to be coupled.

Here, the nut portion 208 can be rotated independently of the body portion 112 even if it is fixed to the body portion 112 by the fixing bolt 206, and corresponds to the first coupling portion of the adjacent arc portion. By rotating the nut portion 208 is a shape that is to be coupled to the first coupling portion.

As described above, the coupling structure of the hula hoop according to the present invention is simple because the manufacturing process is not necessary to form a separate thread and bone for coupling with the fixing bolt on the inner surface of the body fixing portion formed at one end of the body portion There is an advantage to being terminated.

Here, the fixing bolt is used a material stronger than the body portion.

The detachable hula hoop manufactured according to the present invention has the following characteristics.

First, by forming the first and second coupling portion of the bolt and nut shape at both ends of the circular arc portion, there is an advantage that can be configured when the rigid hula hoop.

Second, by manufacturing and assembling the first coupling portion integrated with the body and the second coupling portion coupled with the first coupling portion in a simple manner, the manufacturing process of the hula hoop is simplified.

Third, by assembling the body by adjusting the number of arc parts in accordance with the physical conditions of the user, there is an advantage that can satisfy the various needs of the user.

Claims (1)

A circular hula hoop having a plurality of body parts each separated by an arc shape, A first coupling part 210 extending integrally with each of the body parts 112 and having a smaller outer diameter than the body part 112 and having a thread shape formed on a thread of the outer diameter; 1) a body fixing portion 202 having a smaller outer diameter than the body portion 112 in the longitudinal direction of the body portion 112 and a hole formed therein; and 2) a screw thread is formed in the outer diameter so that the screw thread is formed in the body fixing portion ( 202 is forcibly fitted to the inner diameter through the hole of the fixing bolt 206 having a protrusion 230 protruding in the circumferential direction at the end of the direction facing the other body portion, and 3) of the fixing bolt 206 A ring-shaped nut part 208 formed at one end with a fixed end 232 protruding in an inner circumferential direction so as to be caught by the protrusion 230 and larger than an outer diameter, and 4) an outer portion of the body fixing part 202. A second coupling part having an outer diameter substantially the same as the outer diameter of the body part 112, and including a fixing band 204 which is in contact with a fixed end 232 of the ring-shaped nut part 208. 200) Hula hoop comprising a.