KR200265368Y1 - Tomb of Dumbbell - Google Patents

Abstract

In the shaft bar (1) which is composed of both end handles (2) (2 '), both side tightening parts (3) (3') and the center handle (4),

Cover both end handles, both side tightening parts and the center handle part, and through holes 6, 6 'are perforated at the edges of both hand grip parts (2) and (2'), and the resin connection part (15 ') is connected and the groove (5) A shaft of a dumbbell, characterized in that the covering is made of elastic material and inserted into the groove (5) by covering the covering (7) (7 ') with the inward insertion protrusion (8) (8') protruding.

Description

Dumbbell's Shaft {omitted}

This paper relates to a shaft of a dumbbell that has been improved so that in forming the shaft of the dumbbell, the mold retained by the mold is not left when the synthetic resin coating layer is formed on the surface of the metal rod.

Conventionally, the middle part of the metal rod is first coated and the both ends of the metal handle are covered secondly. When the first coating is carried out, the mold catches the metal handles at both ends of the metal rods, and when the second both ends of the metal handles are covered, the first coated portion is held. While the cover is constructed and commercialized on the market,

This looks beautiful because the appearance of the mold held by the mold is beautiful, but the important thing is that the manufacturing cost is high, the manufacturing time is long, and the work time is additionally required, which requires additional workforce.

In other words, two molds were required and two coating operations were required.

In order to fundamentally solve and supplement these conventional defects, this study has conducted a number of experiments and studies over a long period of time. As a result, the entire metal bar was covered with one coating, and the mold was held by a separate resin covering. When finished as described in detail by the accompanying drawings as a beautiful appearance as follows.

1 is a perspective view of the present invention

Figure 2 is an exemplary cross-sectional view of the state inserted into the mold to cover the metal rods in the present paper

3 is a perspective view of a state in which a covering is fitted after covering the shaft of the present invention

Figure 4 is a cross-sectional view of the groove cut portion in the state of Figure 3 in the present

FIG. 5 is a cross-sectional view of the cover taken in the state of FIG. 4 inserted and inserted; FIG.

Fig. 6 is a cross sectional view of a state in which the covering of the present article is inserted and inserted.

In the shaft bar (1) covered with both end handles (2) (2 '), both side tightening parts (3) (3') and the center handle (4),

Cover both end handles, both side tightening parts and the center handle part, and through holes 6, 6 'are perforated at the edges of both hand grip parts (2) and (2'), the resin connection part (5 ') is connected, and the groove (5) It is characterized in that it is inserted into the groove 5 by covering the cover 7 and 7 'with the elastic material, and the inward insertion protrusion 8 and 98' protrude from the elastic material.

Explain the objection as follows

As illustrated in FIG. 2, the protrusions 13 and the concave protrusions 12, which support and hold the metal rods 10 at both ends, are integrally formed and protruded to support both ends of the metal rods 10 by the inner surface of the mold 11. The synthetic resin is injected into the space part 9 to cover the metal rod 10. At this time, the projection 13 at both ends of the holding portion is not coated with the synthetic resin, so after the coating, the groove protrusion 12 is the groove 5 as shown in FIG. The protrusions 13 are formed through holes 6, 6 ',

In this way, both ends of the handle (2) (2 '), the center handle (4), and both sides of the clamping portion (3) (3'), which is required by the hand rod (dots, dots, projections are not slipped The surface surface of the mold 11 is carved into the inner surface of the mold 11, if necessary, to form the necessary surface configuration such as the surface irregularities) and the spiral clamping parts.

After the coating is completed as shown in FIG. 3, when the covering 7 formed as a resin having good elasticity is inserted into the groove 5, the insertion protrusions 8 and 8 ′ protruding to the inner surface are provided through the holes 6 and 6 ′. In this case, when the adhesive liquid is slightly injected between them, it is firmly adhered to each other, so that beautiful shafts are completed without the appearance of porridge or scratches as shown in FIG.

In FIG. 3, since the covering 7 is formed of a good elastic resin, the cover 7 is stretched to be pushed in at the end of the handle 2 to be inserted into the groove 5, and then stretched back to its original position and smoothly inserted without protruding from the surface. Lose.

Compared to manufacturing two molds in the past and making two coats of the mold to avoid leaving the porridge held by the mold, this proposal can greatly reduce manufacturing costs and can be quickly assembled and molded and beautiful after molding. It is an effective way to show off commodity value.

Claims (1)

In the shaft bar (1) which covers the two end handle parts (2) (2 '), the two side tightening parts (3) (3'), and the center handle part (4), Covering both end handles, both side tightening parts and the center handle part, the through holes 6, 6 'are perforated at the boundary parts of both hand grip parts (2) and (2'), and the resin connection part (5 ') is connected and the groove (5) The shaft of the dumbbell, characterized in that it is coated with a flexible material and inserted into the groove (5) by inserting a covering (7) (7 ') protruding inward insertion protrusion (8) (8') with an elastic material.