WO2018026043A1

WO2018026043A1 - Weight-adjustable dumbbell

Info

Publication number: WO2018026043A1
Application number: PCT/KR2016/009040
Authority: WO
Inventors: 서정헌
Original assignee: 서정헌
Priority date: 2016-08-05
Filing date: 2016-08-17
Publication date: 2018-02-08
Also published as: KR20180016057A; KR101839517B1

Abstract

The present invention relates to a weight-adjustable dumbbell: capable of attaching/detaching individual support weight bodies to/from base weight bodies or attaching/detaching two or more support weight bodies by modularizing the same into a bundle according to a user's using requirements; and facilitating weight adjustment of the dumbbell. To this end, the weight-adjustable dumbbell comprises: a handle; base weight bodies respectively supported on both end portions of the handle; a first weight body and a second weight body sequentially stacked on the base weight bodies; and a first fastening member and a second fastening member for coupling each of the adjacent two weight bodies according to a stacking order, wherein: a base fastening part is penetratedly formed on the base weight bodies; a first passing part communicating with the base fastening part and a second fastening part arranged so as to be spaced from the first passing part in a clockwise direction are penetratedly formed in the first weight body; a second passing part communicating with the first fastening part and a first penetration part communicating with the first passing part by being spaced from the second passing part in a counterclockwise direction are penetratedly formed in the second weight body; a first fastening member is inserted/withdrawn into/from the first penetration part; the second weight body is separated from the first weight body when the screw coupling of a second fastening member is released; and the first weight body and the second weight body are simultaneously separated from the base weight bodies when the screw coupling of the first fastening member is released.

Description

Weight dumbbell

The present invention relates to a weight-controlled dumbbell, and more particularly, according to the user's conditions of use can be attached or detached by detaching a single support weight from the base weight or modularized in a bundle of two or more support weights, The present invention relates to a weight controlled dumbbell for simplifying weight control.

In general, a dumbbell is a fitness device that develops the biceps, triceps, pectoral muscles, abdominal muscles, abdominal muscles, etc. of the body by lifting it with one or two hands.

Conventional dumbbells show a configuration that combines the weight of the same weight at both ends of the center bar. Since the weight of the dumbbell is fixed to the center bar, the user has a problem in that a plurality of dumbbells should be provided according to the weight of the weight according to the use conditions.

In addition, the conventional dumbbell was able to attach and detach the heavy material by screwing to both ends of the center bar, even in this case there was a problem that the weight can be detached only one by one according to the user's use conditions.

Prior art documents include Korean Patent Publication No. 10-1318546 (name of the invention: weight-controlled dumbbell, 2013. 10. 16. notification).

An object of the present invention is to solve the conventional problems, according to the user's conditions of use can be attached or detached by detaching the individual support weights from the base weight or two or more support weights in a bundle, the weight of the dumbbell It is to provide a weight-controlled dumbbell for easy adjustment.

According to a preferred embodiment for achieving the above object of the present invention, the weight adjustable dumbbell according to the present invention comprises a handle for holding the user; A base weight body supported at each end of the handle and having a base fastening portion formed therethrough; A snap ring member for coupling the base weight to the handle; A support weight comprising a first weight stacked on the base weight, and a second weight stacked on the first weight; And a fastening bolt including a first fastening member coupling the first weight body to the base weight body, and a second fastening member coupling the second weight body to the first weight body. The first weight part includes a first through part communicating with the base fastening part, and a first fastening part spaced apart from each other in the clockwise direction from the first through part. The first fastening part is formed in the second weight body. And a second through portion communicating with the first through portion spaced apart from the second through portion in a counterclockwise direction and communicating with the first through portion, wherein the first fastening member is formed at the first through portion. When the screw is inserted, the second fastening member is released, the second weight is separated from the first weight, and when the screw is released from the first fastening member, the first weight is removed from the base weight. The sieve and the second weight are separated at the same time.

Here, the support weight further comprises a third weight laminated on the second weight; The fastening bolt, the third fastening member for coupling the third weight to the second weight; It further includes, The second weight body, the second fastening portion which is spaced apart in the clockwise direction from the second passing portion is formed through, The third weight body, the third passage communicating with the second fastening portion A second through portion spaced in the counterclockwise direction from the third through portion and communicating with the second through portion, and a second spaced apart from the second through portion in the counterclockwise direction and communicated with the first through portion. A first connecting portion is formed through, the second fastening member is inserted into and removed from the second through portion, and the first fastening member is inserted into and removed from the first connecting portion.

Here, the support weight further includes a fourth weight body laminated on the third weight body, wherein the fastening bolt, the fourth fastening member for coupling the fourth weight body to the third weight body; It further comprises, The third weight body, the third fastening portion which is spaced apart in the clockwise direction from the third passing portion is formed through, The fourth weight body, the fourth passage communicating with the third fastening portion A third through part spaced in a counterclockwise direction from the fourth through part to communicate with the third through part, and a third through spaced apart counterclockwise from the third through part to communicate with the second through part. The second connecting portion is formed through, the third fastening member is inserted into and removed from the third through portion, and the second fastening member is removed from the second connecting portion.

Here, the fourth weight body, the fourth fastening portion spaced apart from the fourth passing portion in the clockwise direction and communicated with the first connecting portion is formed through, the first fastening member is external by the fourth fastening portion Is exposed.

Weight-adjustable dumbbell according to the present invention is laminated to the fourth weight, the closing cover is detachably coupled to the fourth weight by the fourth fastening member; further comprising, in the closing cover, A first finishing part communicating with a fourth passing part, a second finishing part communicating with the third passing part in a state of communicating with the first finishing part, and being spaced counterclockwise from the second finishing part; A third finishing portion communicating with the second connecting portion and a fourth finishing portion spaced apart from the third finishing portion in a counterclockwise direction and communicating with the fourth fastening portion, and the fourth fastening member is formed on the finishing cover. It is screwed to the third fastening portion through the first closing portion and the fourth passing portion in a supported state.

Weight adjustable dumbbell according to the invention as a tool for screw coupling, the bolt assembly tool coupled to the combination of the base weight and the support weight; further includes.

Here, the bolt assembly tool, the coupling tool for rotating the fastening bolt through the coupling with the fastening bolt; An assembly gripping part provided in the coupling tool part and held by a user; And an assembly detachable part provided at the assembly gripping part to couple the coupling tool part and the assembly gripping part to the support weight.

The dumbbell according to the present invention further includes a stop bar coupled to the combination of the base weight and the support weight to prevent the combination of the base weight and the support weight from rolling against the floor.

Here, the stop bar, the fixing portion coupled to the base weight; A connection part extending from the fixing part; A protrusion extending from the connection part and protruding from an outer circumferential surface of the combination of the base weight and the support weight; And a stop detachable part provided at the fixing part to couple the fixing part to the base weight.

In the weight-controlled dumbbell according to the present invention, the fourth fastening member reciprocates between the first and second finishing parts according to the relative rotation between the fourth weight body and the closing cover. 2 Removed from the finish.

In the weight adjustable dumbbell according to the present invention, the base weight includes a support portion formed to be recessed so that the snap ring member is seated, and a base center portion penetratingly formed in communication with the support portion so that the handle is inserted therein. It includes a limiting jaw for supporting the base weight body, the engaging portion is formed along the outer peripheral surface so that the snap ring member is supported.

According to the weight-controlled dumbbell according to the present invention, depending on the user's conditions of use can be attached or detached by detaching a single support weight from the base weight or modularized by two or more support weights in a bundle, easy to control the weight of the dumbbell can do.

In addition, the present invention is easy to manufacture the dumbbell, the weight control width of the dumbbell is varied, it is possible to lower the manufacturing cost.

In addition, the present invention prevents the fastening bolts from interfering in the coupling between the support weights by the fastening bolts, it is easy to modularize two or more support weights in a bundle, and the coupling stability between the base weight and the support weights Can be improved.

In addition, the present invention can form a bonding pattern of the support weight by the structural features of the support weight, it is possible to simplify the coupling of the base weight and the support weight or the support weight.

In addition, the present invention can protect the base weight and the support weight, absorb the impact applied to the dumbbell, and can be beautiful in appearance.

In addition, the present invention can facilitate the detachment of the support weight even if the closing cover is coupled to facilitate the detachment of the finish cover from the support weight.

In addition, the present invention can be smoothly detachable by modularizing the support weight in a single or two or more bundles in the combination of the base weight and the support weight by the structural feature of the finish cover.

In addition, the present invention prevents the head of the fastening bolt from protruding from the plate surface of the support weight through the counterbore processing of the passage formed in the support weight, and in the coupling between the support weights or between the support weights and the finishing cover Interference or gaps can be prevented.

In addition, the present invention facilitates the rotation operation of the finish cover on the support weight, and can be easily attached and detached from the finish cover.

In addition, the present invention stabilizes the coupling of the base weight and the support weight in the handle, the combination of the base weight and the support weight in the handle can be rotated, the base weight according to the combination of the base weight and the support weight The separation between the sieve and the support weight can be prevented.

In addition, the present invention does not require a tool for screwing, facilitates the detachment of the support weight from the dumbbell, and can facilitate the storage of the bolt assembly tool.

In addition, the present invention does not need to use a separate tool for weight control in the dumbbell, without being limited by space, and can adjust the weight of the dumbbell according to the user's conditions, it is possible to prevent the loss of the bolt assembly tool.

In addition, the present invention prevents the dumbbell from rolling on the floor, prevents the stop bar from interfering in using the dumbbell, and can prevent the loss of the stop bar. In particular, the installation position of a stop bar can be changed freely.

In addition, the present invention simplifies the detachment of the bolt assembly tool or stop bar and dumbbell, and can easily meet a variety of user conditions.

1 is a perspective view showing a weight adjustable dumbbell according to an embodiment of the present invention.

2 is a partially exploded perspective view of FIG. 1.

3 is a perspective view of the base weight in FIG.

4 is a perspective view illustrating the first weight in FIG. 2.

5 is a perspective view illustrating a second weight body in FIG. 2.

6 is a perspective view illustrating a third weight body in FIG. 2.

FIG. 7 is a perspective view illustrating a fourth weight body in FIG. 2.

8 is a perspective view of the finishing cover in FIG.

9 is a cross-sectional view showing the main portion of the coupling state of the base weight and the support weight in the weight adjustable dumbbell according to an embodiment of the present invention.

10 is a perspective view of the bolt assembly tool in FIG.

FIG. 11 is a perspective view of the stop bar of FIG. 2. FIG.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of a weight adjustable dumbbell according to the present invention. At this time, the present invention is not limited or limited by the embodiment. In addition, in describing the present invention, a detailed description of known functions or configurations may be omitted to clarify the gist of the present invention.

1 is a perspective view showing a weight adjustable dumbbell according to an embodiment of the present invention, Figure 2 is a partially exploded perspective view of Figure 1, Figure 3 is a perspective view showing the base weight in Figure 2, Figure 4 is FIG. 2 is a perspective view illustrating the first weight body, FIG. 5 is a perspective view illustrating the second weight body in FIG. 2, FIG. 6 is a perspective view illustrating the third weight body in FIG. 2, and FIG. 7 is FIG. 2. In Figure 4 is a perspective view showing a fourth weight, Figure 8 is a perspective view showing a finishing cover in Figure 2, Figure 9 is a combination of the base weight and the support weight in the weight adjustable dumbbell according to an embodiment of the present invention It is a cross-sectional view of the main portion showing the state, Figure 10 is a perspective view showing the bolt assembly tool in Figure 2, Figure 11 is a perspective view showing a stop bar in Figure 2.

1 to 11, the weight adjustable dumbbell according to an embodiment of the present invention includes a handle 10, a base weight 20, a snap ring member 90, a support weight 30 and Including a fastening bolt 40, may further include a closing cover (50).

The handle 10 is a part held by the user. The handle 10 is formed in a rod shape.

An outer circumferential surface of the handle 10 is provided with a friction grip 11 to prevent slipping when the user grips. Here, the friction gripping portion 11 is not limited, and the user may be prevented from slipping through various forms.

In addition, the handle 10 includes a limiting jaw 14 for supporting the base weight 20, and the engaging portion 12 is formed along the outer peripheral surface so that the snap ring member 90 is supported. Here, the limiting jaw 14 may be formed at the end of the friction gripping portion 11 as the friction gripping portion 11 protrudes.

In addition, the mounting portion 13 may be recessed on both side surfaces of the handle 10 for coupling with the bolt assembly tool 70 to be described later.

The base weight 20 is supported at both ends of the handle 10, respectively. At this time, the base fastening portion 21 is formed through the base weight 20. Two or more base fastening portions 21 are spaced at equal intervals along the outer circumferential surface thereof to improve coupling stability of the base weight body 20 and the support weight body 30. The inner circumferential surface of the base fastening portion 21 is formed with a screw thread for screwing.

Although the base weight 20 shows a disk shape, it is not limited to this, It can represent various shapes, such as a polygonal shape and an ellipse shape.

The base weight 20 has a support 22 formed to be recessed so that the snap ring member 90 is seated to secure the coupling stability between the handle 10 and the snap ring member 90, and the support 22 to insert the handle 10. It may include a base center portion 23 is formed in communication with the base. The snap ring member 90 may be seated on the support part 22 to prevent the gap between the base weight body 20 and the support weight body 30. Base center portion 23 is formed through the center of the base weight (20).

In addition, the base weight body 20 has a first pile passing portion 201, a first pile passing portion 202, and a first pile connecting portion 203 spaced apart from the base fastening portion 21 along the outer circumferential surface. Can be deployed. At this time, the base fastening portion 21, the first pile passing portion 201, the first pile through portion 202 and the first pile connecting portion 203 are spaced at equal intervals from each other to support the weight 30 In addition to simplifying the coupling, the communication between the holes according to the stacking of the base weight 20 and the support weight 30 can be straightened.

The first dummy passing portion 201 shows a shape corresponding to the passage formed in the supporting weight 30 described later, and the first dummy passing portion 202 is formed in the supporting weight 30 described later. The first dummy connection part 203 represents a shape corresponding to the part, and the first dummy connection part 203 represents a shape corresponding to the connection part formed on the supporting weight 30 described later.

The snap ring member 90 couples the base weight 20 to the handle 10. The snap ring member 90 corresponds to the cross-sectional shape of the handle 10 and shows a ring shape. The snap ring member 90 is fitted to the engaging portion 12 of the handle 10 and protrudes from the outer circumferential surface of the handle 10.

The support weight 30 is laminated on the base weight 20. Although the support weight 30 shows a disk shape corresponding to the base weight 20, it is not limited to this, It can exhibit various shapes, such as a polygonal shape and an ellipse shape. The support center portion 304 may be formed in the support weight body 30 so as to correspond to the base center portion 23. Support center portion 304 is formed through the center of the support weight (30).

The support weight 30 includes a first weight 31 stacked on the base weight 20 and a second weight 32 stacked on the first weight 31.

The first weight part 31 penetrates through the first passage part 312 communicating with the base fastening part 21, and the first fastening part 311 spaced apart from each other in the clockwise direction from the first passage part 312. Is formed. Two or more first fastening portions 311 may be spaced at equal intervals along the outer circumferential surface thereof to improve coupling stability of the first weight body 31 and the second weight body 32. Threads for screwing are formed on the inner circumferential surface of the first fastening portion 311. Although not shown, threads for screwing may also be formed on the inner circumferential surface of the first pass-through part 312.

In addition, a second dummy through portion 302 and a second dummy portion 303 may be disposed on the first weight body 31 in the first passing portion 312 along the outer circumference to be spaced apart in a counterclockwise direction. At this time, the first fastening portion 311, the first passing portion 312, the second pile through portion 302, and the second pile connecting portion 303 are spaced at equal intervals from each other to support the weight 30 In addition to simplify the coupling of the support body 30 can be straightened the communication between the holes according to the stacking.

The second pile through portion 302 has a shape corresponding to the through portion formed in the support weight 30 to be described later, the second pile connecting portion 303 is a connection portion formed in the support weight 30 to be described later The corresponding shape is shown.

The second weight body 32 has a second passage portion 322 in communication with the first fastening portion 311 and the first passage portion 312 is spaced apart in the counterclockwise direction from the second passage portion 322 and The first communicating portion 323 is formed in communication with each other. Although not shown, a thread for screwing may be formed on the inner circumferential surface of the second passing portion 322.

In addition, the second fastening portion 321 may be formed in the second weight body 32 to be spaced apart in the clockwise direction from the second passing portion 322 to be coupled to the third weight body 33 to be described later. . A thread for screwing is formed on the inner circumferential surface of the second fastening portion 321.

In addition, the second dummy body 32 may be spaced apart in the counterclockwise direction from the first through portion 323 along the outer circumferential surface of the second dummy connection portion 303. At this time, the second fastening portion 321, the second passing portion 322, the first through portion 323, and the second dummy connecting portion 303 are spaced at equal intervals from each other to support the weights 30. In addition to simplifying the coupling, the communication between the holes according to the stacking of the support weights 30 can be straightened.

The second dummy connection part 303 has a shape corresponding to the connection part formed on the supporting weight 30 to be described later.

The support weight 30 may further include a third weight 33 stacked on the second weight 32. The third weight body 33 has a third passage portion 332 which is in communication with the second fastening portion 321 and the second passage portion 322 spaced apart from the third passage portion 332 in a counterclockwise direction. The second through part 333 communicated with each other, and the first connecting part 334 spaced apart from the second through part 333 in the counterclockwise direction and communicating with the first through part 323 are formed therethrough. Although not shown, a thread for screwing may be formed on the inner circumferential surface of the third passing portion 332.

In addition, the third fastening portion 331 may be formed through the third weight portion 33 to be spaced apart in the clockwise direction from the third passing portion 332 to be coupled to the fourth weight body 34 to be described later. . A thread for screwing is formed on the inner circumferential surface of the third fastening portion 331.

At this time, the third passing portion 332, the second through portion 333, the first connecting portion 334, and the third fastening portion 331 are spaced at equal intervals from each other to combine the support weights 30 As well as simplify the communication between the holes according to the stacking of the support weights 30 can be straightened.

The support weight 30 may further include a fourth weight 34 stacked on the third weight 33. The fourth weight body 34 has a fourth passage part 342 communicating with the third fastening part 331, and is spaced counterclockwise from the fourth passage part 342 in the third passage part 332. ) And a third connecting portion 343 communicated with each other and a second connecting portion 344 spaced apart from the third through portion 343 in a counterclockwise direction and communicating with the second through portion 333. Although not shown, a thread for screwing may be formed on the inner circumferential surface of the third passing portion 332.

In addition, the fourth fastening portion 341 may be formed in the fourth weight body 34 to be spaced apart from the fourth passing portion 342 in the clockwise direction so as to be coupled to the supporting weight body 30. . In other words, the fourth fastening part 341 is spaced apart in the counterclockwise direction from the second connection part 344. A thread for screwing is formed on the inner circumferential surface of the fourth fastening portion 341. The fourth fastening part 341 is in communication with the first connection part 334 of the third weight body 33. Then, the fourth weight 34 has an outer circumferential surface with the fourth fastening portion 341, the fourth passing portion 342, the third through portion 343, and the second connecting portion 344 being spaced apart from each other. Are repeated along.

At this time, the fourth passing portion 342, the third through portion 343, the second connecting portion 344, and the fourth fastening portion 341 are spaced at equal intervals from each other to combine the support weights 30 As well as simplify the communication between the holes according to the stacking of the support weights 30 can be straightened.

The fastening bolt 40 couples the base weight body 20 and the first weight body 31 through screwing, or couples two support weights 30 that are stacked through screwing. The fastening bolt 40 is screwed to the fastening portion communicated with the passage through the passage portion of the head portion 401 supported by the support weight body 30 and the support weight body 30 on which the head portion 401 is supported. It includes a threaded portion 302 extending from the head 401 to be coupled. Head 401 is provided with a tool coupling portion 403 for coupling with the tool.

Then, the first fastening member 41 of the fastening bolt 40 includes a first head and a first screw portion, the second fastening member 42 includes a second head and a second screw portion, The third fastening member 43 includes a third head and a third screw portion, and the fourth fastening member 44 includes a fourth head and a fourth screw portion.

The fastening bolt 40 includes a first fastening member 41 and a second fastening member 42, further includes a third fastening member 43, and further includes a fourth fastening member 44.

The first fastening member 41 couples the first weight 31 to the base weight 20. The first fastening member 41 is inserted into and removed from the first through part 323. The first fastening member 41 extends from the first head so as to be screwed to the base fastening portion 21 through the first head portion supported by the first weight body 31 and the first through portion 312. It includes a first screw portion. At least one first fastening member 41 corresponds to the number of base fastening portions 21.

The second fastening member 42 couples the second weight 32 to the first weight 31. The second fastening member 42 is inserted into and removed from the second through part 333. The second fastening member 42 includes a second head supported by the second weight body 32 and a second head part which is screwed to the first fastening part 311 through the second passing part 322. It includes a second screw portion extending. One or more second fastening members 42 correspond to the number of first fastening portions 311.

The third fastening member 43 couples the third weight body 33 to the second weight body 32. The third fastening member 43 is inserted into and removed from the third through portion 343. The third fastening member 43 includes a third head supported by the third weight body 33 and a third head portion so as to be screwed to the second fastening portion 321 through the third passing portion 332. It includes a third screw portion extending. One or more third fastening members 43 are provided corresponding to the number of second fastening parts 321.

The fourth fastening member 44 couples the fourth weight 34 to the third weight 33. The fourth fastening member 44 is exposed to the outside. The fourth fastening member 44 may include a fourth head supported by the fourth weight body 34, and a fourth head part (4) to be screwed to the third fastening part 331 through the fourth passing part 342. A fourth screw portion extending from the) is included. One or more fourth fastening members 44 correspond to the number of third fastening portions 331.

The first pile passing portion 201, the first pile through portion 202, the first pile portion 203, the second pile portion 302, the second pile portion 303 is formed on the weight body By matching the pattern of the holes to be formed, it is possible to produce the base weight 20 and the support weights 30 in one mold.

Although not shown, a portion through which the threaded portion 402 of the fastening bolt 40 passes in the aforementioned passage portion may form a space in which the head 401 of the fastening bolt 40 is seated through the count core.

The finishing cover 50 is laminated on the fourth weight 34. The finishing cover 50 may surround the stacked support weight 30. The closing cover 50 is detachably coupled to the fourth weight body 34 by the fourth fastening member 44.

More specifically, the finishing cover 50 has a first through-hole 51 in communication with the fourth passing portion 342 to pass through the fourth screw portion, and a third through-hole in communication with the first finish portion 51. A second finishing portion 52 in communication with the 343, a third finishing portion 53 spaced in the counterclockwise direction from the second finishing portion 52, and communicating with the second connecting portion 344, and a third finishing The fourth finishing part 54 is spaced counterclockwise from the part 53 and communicates with the fourth fastening part 341.

Then, the fourth fastening member 44 has the fourth head portion while the fourth head is supported by the closing cover 50, and the fourth screw portion opens the first closing portion 51 and the fourth passing portion 342 of the closing cover 50. Passed through and screwed to the third fastening portion (331).

In addition, the fourth fastening member 44 reciprocates between the first finishing part 51 and the second finishing part 52 according to the relative rotation between the fourth weight body 34 and the closing cover 50. It may be removed from the second closing portion 52. Similarly, the fastening bolt 40 exposed from the third closing portion 53 or the fourth closing portion 54 can be removed. However, when the fourth closing part 54 and the fourth fastening part 341 communicate with each other, the first fastening member 41 is inserted into and removed from the first connecting part 334 and the first through part 323. It cannot pass through the fastening portion 341.

The fourth weight body 34 has a fourth fastening part 341, a fourth passing part 342, a third through part 343, and a second connecting part 344 spaced apart from each other along the outer circumferential surface thereof. It is placed repeatedly.

Then, in response to the fourth weight body 34 stacked on the outermost side of the support weight body 30, the finishing cover 50 has a first finishing part 51, a second finishing part 52, and a third The finishing part 53 and the fourth closing part 54 are spaced at equal intervals from each other so that the fourth passing part 342, the third passing part 343, the second connecting part 344, and the fourth fastening part are spaced at equal intervals. It communicates with the part 341 in order.

Accordingly, looking at the detachable weight-adjustable dumbbell, as shown in FIG. 9, the support weights 30 are sequentially stacked on the base weight 20, and the finishing cover 50 is finally stacked.

Then, the fourth closing part 54 has a fourth fastening part 341, a first connecting part 334, a first through part 323, a first passing part 312, and a base fastening part 21. Are communicated in a straight line about one axis. In addition, a second connection portion 344, a second through portion 333, a second through portion 322, and a first fastening portion 311 have a straight line with respect to one axis in the third closing portion 53. Communicate in the phase. In addition, a third through portion 343, a third through portion 332, and a second fastening portion 321 communicate with each other in a straight line with respect to the second axis 52. In addition, the fourth passing portion 342 and the third fastening portion 331 communicate with each other in a straight line with respect to one axis in the first closing portion 51.

At this time, the first fastening member 41 can be inserted into and detached from the first connecting portion 334 and the first through portion 323 communicated with each other, and is exposed to the outside by the fourth fastening portion 341. The first weight body 31 is coupled to the base weight body 20 by screwing using the first passage part 312 and the base fastening part 21.

In addition, the second fastening member 42 can be inserted into and detached from the third closing portion 53, the second connecting portion 344, and the second through portion 333, which are in communication with each other, and the second passing portion 322. The second weight body 32 is coupled to the first weight body 31 by screwing using the first fastening part 311.

In addition, the third fastening member 43 can be inserted into and detached from the second closing portion 52 and the third through portion 343, which are in communication with each other, and the third passing portion 332 and the second fastening portion 321 can be removed. The third weight body 33 is coupled to the second weight body 32 through a screw coupling.

In addition, the fourth fastening member 44 is exposed to the outside, and the third weight body 33 through the screw coupling using the first closing portion 51 and the fourth passing portion 342 and the third fastening portion 331. ) And the fourth weight body 34 is coupled to the fourth weight body 34 so that the finishing cover is supported.

First, when the screw coupling through the first fastening member 41 to the screw coupling through the fourth fastening member 44 are sequentially performed, the first weight body 31 to the fourth weight body (3) to the base weight body 20 ( 34) can be laminated in a single sheet.

Secondly, if the screw coupling through the first fastening member 41 to the screw coupling through the fourth fastening member 44 are sequentially performed, the first weight body 31 to the fourth weight body 34 are integrally modularized. It can be coupled to the base weight 20.

Third, by releasing the screw in sequence in the reverse order of the above-described sheet coupling, the support weight 30 can be separated into a single sheet from the combination of the base weight 20 and the support weight 30.

Fourth, when releasing the screw coupling of each of the fastening bolts 40 in accordance with the coupling state, the support weight 30, the fastening bolt 40 is supported and the other support weight 30 laminated on the support weight 30 ) Can be separated from the conjugate at the same time.

For example, when releasing the screw of the second fastening member 42 in a state in which the modular support weight 30 is coupled to the base weight 20, the first weight 31 is attached to the base weight 20. ) Is combined, and the second weight 32 is separated from the first weight 31. At this time, the second weight body 32 is integrated with the third weight body 33 and the fourth weight body 34 in a bundle and separated from the first weight body 31.

In particular, the screwing of the first fastening member 41 is released while the first weight 31 and the second weight 32 modularized to the base weight 20 are coupled to the base weight 20. When the first weight 31 and the second weight 32 are separated from the base weight 20 at the same time, and the screwing of the second fastening member 42 is released, the first weight 31 is removed. From the second weight body 32 is separated.

Although not shown, an additional connection part (not shown) may be formed in the fourth weight body 34 between the second connection part 344 and the fourth fastening part 341. The additional connection part (not shown) may be in communication with the first connection part 334 of the third weight body 33. In addition, a fourth finishing part 54 may be provided in the finishing cover 50 in response to an additional connecting part (not shown) provided between the second connecting part 344 and the fourth fastening part 341.

In addition, the support weight 30 further includes at least one additional weight (not shown) for further lamination to the fourth weight 34, and the fastening bolt ( 40 may further include an additional fastening member (not shown) as described above. Further, holes are formed in the additional weight (not shown) in the same pattern as that of the fourth weight 34.

Weight-adjustable dumbbell according to an embodiment of the present invention may further include at least one of the bolt assembly tool 70 and the stop bar (80).

The bolt assembly tool 70 is a tool for screwing, is detachably coupled to the combination of the base weight body 20 and the support weight body 30. Coupling of the bolt assembly tool 70 may include detachably coupled to the end side of the handle (10).

The bolt assembly tool 70 is a coupling tool 71 for rotating the fastening bolt through the coupling with the fastening bolt 40, the assembly holding portion 72 is provided in the coupling tool 71 and the user grips, The assembly holding part 72 may include an assembly detachable part 73 which couples the coupling tool part 71 and the assembly holding part 72 to the support weight 30.

Then, the bolt assembly tool 70 and the base weight 20 in the form that the coupling tool 71 is inserted into the support center portion 304 in a state in which the assembly holding portion 72 closes the support center portion 304. It can be detachably coupled to the assembly of the support weight (30).

First, the assembly detachable part 73 is provided with a magnet having magnetic force, and is inserted into and fixed in the assembly groove part 72a provided in the assembly gripping part 72, so that the bolt assembly tool 70 is made of a metal base weight ( 20) can be detachably coupled to the combination of the support weight 30.

Second, the assembly detachable portion 73 is provided with a magnet having a magnetic force, integrally formed in the coupling tool portion 71, the bolt assembly tool 70 can be detachable to the seating portion 13 or the support center portion 304 Can be combined.

The stop bar 80 is a base weight (20) to prevent the base weight 20 and the support weight 30 from rolling about the floor in a state in which the base weight 20 and the support weight 30 is coupled It is detachably coupled to the combination of 20) and the support weight 30.

The stop bar 80 includes a fixed portion 81 coupled to the base weight 20, a connecting portion 83 extending from the fixing portion 81, and a base weight 20 extending from the connecting portion 83. And protrusions 82 protruding from the outer circumferential surface of the combined body of the support weight 30 and the stop portion 84 provided on the fixing portion 81 to couple the fixing portion 81 to the base weight 20. It includes.

Here, the fixing part 81 may be inserted into the first dummy through portion 202 or the first dummy connecting portion 203. In addition, the stop detachable portion 84 is provided with a magnet having magnetic force, and the stop bar 80 is inserted into and fixed to the stop groove portion 81a formed in the fixing portion 81, so that the stop bar 80 is made of a metal base weight 20. It can be detachably coupled to.

Then, since the protrusion 82 protrudes from the outer circumferential surface of the assembly in a state where the fixing portion 81 is coupled to the base weight 20, the assembly can be prevented from rolling at the bottom.

In addition, the fixing portion 81 and the protrusion 82 are inserted into the first pile through portion 202 and the first pile connecting portion 203, respectively, to prevent the protrusion of the protrusion 82, and the stop bar 80 is lost. Can be prevented.

According to the weight-adjustable dumbbell, according to the user's conditions of use, the base weight body 20 may be detachably attached or detached by modularizing two or more support weights 30 in a bundle. , You can easily control the weight of the dumbbell. In addition, the production of the dumbbell is simple, the weight control width of the dumbbell is varied, the manufacturing unit cost can be lowered. In addition, the fastening bolt 40 is prevented from interfering in the coupling between the support weights 30 by the fastening bolts 40, it is easy to modularize the two or more support weights 30 in a bundle, the base weight Bonding stability between the 20 and the support weight 30 can be improved. In addition, by the structural features of the support weight 30 to form a coupling pattern of the support weight 30, the base weight 20 and the coupling of the support weight 30 or the coupling between the support weight 30 Can be simplified.

In addition, the base weight 20 and the support weight 30 can be protected, the shock applied to the dumbbell can be absorbed, and the appearance can be made beautiful. In addition, it is possible to facilitate the detachable attachment of the finishing cover 50 from the support weight 30, as well as the attachment and detachment of the support weight 30 even if the closing cover 50 is coupled. In addition, due to the structural features of the finishing cover 50, in the combination of the base weight 20 and the support weight 30, the support weight 30 can be stably modularized into single or two or more bundles to facilitate detachment and detachment. Can be.

Further, the head 401 of the fastening bolt 40 is prevented from protruding from the plate surface of the supporting weight 30 through the counterbore processing of the passage formed in the supporting weight 30, and the supporting weight 30 is supported. In the coupling between the support body 30 or the coupling between the support weight 30 and the finishing cover 50 can be prevented from mutually interfering or forming a gap.

In addition, it is possible to facilitate the rotation operation of the finish cover 50 in the support weight body 30, and to easily attach or detach the finish cover 50 in the support weight body 30.

In addition, the handle 10 to stabilize the coupling of the base weight 20 and the support weight 30, the combination of the base weight 20 and the support weight 30 in the handle 10 can be rotated In addition, according to the combination of the base weight body 20 and the support weight body 30, it is possible to prevent the space between the base weight body 20 and the support weight body 30.

In addition, a tool for screwing is not required, and the support weight 30 can be easily attached and detached from the dumbbell, and the bolt assembly tool 70 can be easily stored. In addition, it is not necessary to use a separate tool for weight control in the dumbbell, without being restricted by space, the weight of the dumbbell can be adjusted according to the user's conditions, it is possible to prevent the loss of the bolt assembly tool (70). In addition, it is possible to prevent the dumbbell from rolling on the floor, to prevent the stop bar 80 from interfering with the dumbbell, and to prevent the loss of the stop bar 80. In particular, the installation position change of the stop bar 80 can be made free. In addition, the bolt assembly tool 70 or the stop bar 80 and the attachment and detachment of the dumbbell can be simplified, and various user conditions can be easily met.

Although the preferred embodiments of the present invention have been described with reference to the drawings as described above, those skilled in the art can variously change the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. Can be modified or changed.

Weight-adjustable dumbbell of the present invention can be used as a fitness device for developing the biceps, triceps, pectoral muscles, abdominal muscles, abdominal muscles, etc. of the body while controlling the number of weights coupled to the handle which is the central rod.

Claims

A handle for grasping the user;

A base weight body supported at each end of the handle and having a base fastening portion formed therethrough;

A snap ring member for coupling the base weight to the handle;

A support weight comprising a first weight stacked on the base weight, and a second weight stacked on the first weight; And

And a fastening bolt including a first fastening member coupling the first weight body to the base weight body and a second fastening member coupling the second weight body to the first weight body.

The first weight body has a first through portion communicating with the base fastening portion, and a first fastening portion spaced apart in the clockwise direction from the first passage portion, formed therethrough.

The second weight body has a second through portion communicating with the first fastening portion and a first through portion spaced apart from the second through portion in a counterclockwise direction and communicating with the first through portion, formed therethrough.

The first fastening member is inserted into and removed from the first through portion,

When the screwing of the second fastening member is released, the second weight is separated from the first weight, and when the screwing of the first fastening member is released, the first weight and the first weight are separated from the base weight. Weight control dumbbell, characterized in that the second weight is separated at the same time.
The method of claim 1,

The support weight further includes a third weight laminated on the second weight,

The fastening bolt further includes a third fastening member for coupling the third weight body to the second weight body.

In the second weight body, a second fastening portion spaced apart in the clockwise direction from the second passing portion is formed through,

The third weight body may include a third passing portion communicating with the second fastening portion, a second passing portion spaced in a counterclockwise direction from the third passing portion, and communicating with the second passing portion, and the second passing portion. A first connection portion spaced apart from the through portion counterclockwise to communicate with the first through portion is formed through,

The second fastening member is inserted into and removed from the second through portion,

The first fastening member is a weight adjustable dumbbell, characterized in that inserted into and removed from the first connection.
The method of claim 2,

The support weight further includes a fourth weight laminated on the third weight,

The fastening bolt further includes a fourth fastening member for coupling the fourth weight body to the third weight body.

The third weight body is formed with a third fastening portion penetratingly spaced apart from the third passing portion in a clockwise direction,

The fourth weight body has a fourth through portion communicating with the third fastening portion, a third through portion spaced counterclockwise from the fourth through portion and communicating with the third through portion, and the third portion. The second connection portion is spaced apart in the counterclockwise direction in communication with the second through portion is formed through,

The third fastening member is inserted into and removed from the third through portion,

The second fastening member is a weight adjustable dumbbell, characterized in that inserted into and removed from the second connection.
The method of claim 3,

The fourth weight body, the fourth fastening portion spaced apart in the clockwise direction from the fourth passing portion communicating with the first connecting portion is formed through,

The first fastening member is a weight adjustable dumbbell, characterized in that exposed to the outside by the fourth fastening portion.
The method of claim 4, wherein

And a finishing cover laminated to the fourth weight body and detachably coupled to the fourth weight body by the fourth fastening member.

The closing cover,

A first finishing portion communicating with the fourth passing portion, a second finishing portion communicating with the third through portion in communication with the first finishing portion, and spaced apart from the second finishing portion in a counterclockwise direction; A third finishing part communicating with a second connecting part and a fourth finishing part communicating with the fourth fastening part spaced apart in the counterclockwise direction from the third finishing part,

The fourth fastening member is,

Weight control type dumbbells, characterized in that screwed to the third fastening portion passing through the first closing portion and the fourth passage in the state supported by the closing cover.
The method according to any one of claims 1 to 5,

As a tool for screwing, further comprising a bolt assembly tool coupled to the combination of the base weight and the support weight;

The bolt assembly tool,

Coupling tool unit for rotating the fastening bolt through the coupling with the fastening bolt;

An assembly gripping part provided in the coupling tool part and held by a user; And

And an assembly detachable part provided at the assembly grip part to couple the coupling tool part and the assembly grip part to the support weight.
The method according to any one of claims 1 to 5,

And a stop bar coupled to the combination of the base weight and the support weight to prevent the combination of the base weight and the support weight from rolling against the floor.
The method of claim 7, wherein

The stop bar,

A fixing part coupled to the base weight body;

A connection part extending from the fixing part;

A protrusion extending from the connection part and protruding from an outer circumferential surface of the combination of the base weight and the support weight; And

A weight adjustable type dumbbell, comprising: a stop detachable portion provided in the fixing portion to couple the fixing portion to the base weight.