WO2018128300A1 - Weight-adjustable dumbbell - Google Patents

Abstract

The present invention relates to a weight-adjustable dumbbell wherein, according to usage conditions of a user, individual weights or at least two weights modularized into a bundle are attached to or detached from a dumbbell by rotating a handle unit of the dumbbell, and a quick change of the dumbbell weights is allowed. To this end, the weight-adjustable dumbbell comprises: an elongated coupling rod formed in the longitudinal direction; a handle unit rotatably coupled to the coupling rod which serves as the axis of rotation; a rotation control unit coupled to the handle unit while being rotatably coupled to the coupling rod which serves as the axis of rotation; a fixing bracket unit coupled to the coupling rod so as to allow the rotation control unit to be rotated; a plurality of weights into which the rotation control unit is inserted; and a weight fixing unit rotatably coupled to the fixing bracket unit while a direction intersecting the longitudinal direction of the coupling rod is used as the axis of rotation.

Description

Weight dumbbell

The present invention relates to a weight-controlled dumbbell, and more specifically, by rotating the handle unit in the dumbbell according to the user's use conditions, it is possible to attach or detach the individual weights from the dumbbell, or by modularizing two or more weights in a bundle. The present invention relates to a weight-controlled dumbbell that can quickly and quickly change the weight in the dumbbell.

In general, a dumbbell is a fitness device that develops biceps, triceps, pectoral muscles, abdominal muscles, abdominal muscles, etc. of the body of the body by lifting by holding one hand 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.

An object of the present invention is to solve the conventional problems, by rotating the handle unit in the dumbbell in accordance with the user's use conditions, can be attached or detached from the individual weight of the dumbbell, or by modularizing the two or more weight in a bundle, It is to provide a weight-controlled dumbbell that can change the weight quickly and quickly in the dumbbell.

According to a preferred embodiment for achieving the above object of the present invention, the present invention is a coupling rod formed long in the longitudinal direction; A handle unit penetrated by the coupling rod and rotatably disposed with respect to the coupling rod; A rotation control unit coupled to the handle unit while penetrated by the coupling rod, and rotating together with the rotation of the handle unit; A fixed bracket unit coupled to the coupling rod; A plurality of heavy materials into which the rotation control unit is inserted; And a plurality of rotatably coupled to the fixed bracket unit about an axis intersecting the longitudinal direction of the coupling rod, and pivoting in the fixed bracket unit according to the rotation of the rotation control unit and corresponding one to one with the plurality of heavy objects. It provides a weight adjustable dumbbell comprising a; weight fixing unit.

Here, when the rotation control unit is rotated according to the rotation of the handle unit in the state in which the rotation control unit is inserted into the plurality of weights, the rotation control unit pivots at least one of the plurality of weight fixing unit The pivoted weight fixing unit may be combined with the corresponding weight.

According to the weight-controlled dumbbell according to the present invention, by rotating the handle unit in the dumbbell according to the user's use conditions, it is possible to attach or detach the individual weights from the dumbbell, or by modularizing two or more weights in a bundle, the weight in the dumbbell Can be changed quickly and quickly.

In addition, the present invention can rotate the handle unit intermittently, it is possible to select the weight to be detached from the dumbbell according to the amount of rotation of the handle unit.

In addition, the present invention can determine the position of the weight detachable from the dumbbell in accordance with the rotation of the handle unit.

In addition, the present invention is to ensure that the weight is inserted into the rotation control unit stably, and can improve the coupling force between the weight and the fastening unit and the weight of the weight fixed unit is inserted into the rotation control unit, the weight in the longitudinal direction of the coupling rod is rotation control The separation from the unit can be prevented.

In addition, the present invention can stably support the weight fixing unit in the fixed bracket unit, it is possible to prevent the fixed bracket unit is interfered with the weight.

In addition, the present invention can stabilize the pivot movement of the weight fixing unit in the fixed bracket unit, it can facilitate the coupling of the weight fixing unit and the weight.

In addition, the present invention can prevent the rotation of the handle unit in a state in which the weight is fixed to the rotation control unit, and can prevent the weight from being separated from the rotation control unit in accordance with the rotation of the handle unit.

In addition, the present invention facilitates the pivot movement of the weight fixing unit, prevents the flow of the weight fixing unit in the pivot movement of the weight fixing unit, and pressurizes the pivot head member disposed in the pressing protrusion in accordance with the rotation of the rotation control unit It can be guided to the negative, can stabilize the fixed state of the weight in the rotation control unit.

In addition, the present invention is to correspond to the rotation control unit to stably place the weight and to be easily inserted into the rotation control unit in the weight.

In addition, the present invention stabilizes the coupling between the units in the coupling rod, it is possible to prevent the units from being separated from each other by the rotation of the handle unit.

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

Figure 2 is an exploded view showing a weight adjustable dumbbell according to an embodiment of the present invention.

Figure 3 is a cross-sectional view showing a combined state of the weight adjustable dumbbell according to an embodiment of the present invention.

Figure 4 is an exploded perspective view showing a handle unit in the weight adjustable dumbbell according to an embodiment of the present invention.

5 is a perspective view showing a rotation control unit in the weight adjustable dumbbell according to an embodiment of the present invention.

Figure 6 is a front view showing a first step plate of the rotation control unit in the weight adjustable dumbbell according to an embodiment of the present invention.

Figure 7 is a front view showing a second step plate of the rotation control unit in the weight adjustable dumbbell according to an embodiment of the present invention.

8 is a front view showing a third step plate of the rotation control unit in the weight adjustable dumbbell according to an embodiment of the present invention.

Figure 9 is a front view showing a fourth step plate of the rotation control unit in the weight adjustable dumbbell according to an embodiment of the present invention.

10 is a view showing each weight in the weight adjustable dumbbell according to an embodiment of the present invention.

Figure 11 is an enlarged perspective view showing a combined state of the rotation stopping unit in the weight adjustable dumbbell according to an embodiment of the present invention.

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

FIG. 13 is an exploded view illustrating the weight adjustable dumbbell of FIG. 12.

14 is a view for explaining the coupling relationship of the handle unit provided in the weight adjustable dumbbell of 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 to 11, the weight adjustable dumbbell according to an embodiment of the present invention, the coupling rod 10, the handle unit 20, the rotation control unit 30, the fixed bracket unit 50 And, it may include a weight 40 and a weight fixing unit 60.

The fixing bracket 50, the weight 40 and the weight fixing unit 60 is provided one set on both sides of the handle unit 20.

When the rotation control unit 30 is rotated according to the rotation of the handle unit 20 in the state in which the rotation control unit 30 is inserted into the weight 40, the rotation control unit 30 is a plurality of the Pivoting at least any one of the weight fixing unit 60, the weight fixing unit 60 is pivoted in combination with the weight 40 to fix the weight 40 to the rotation control unit 30 Can be.

Therefore, the weight fixing unit 60 by fixing one or two or more of the plurality of the weight 40 to the rotation control unit 30, it is possible to quickly and quickly change the weight 40 in the dumbbell.

The coupling rod 10 is formed long in the longitudinal direction. Both end portions of the coupling rod 10 may be provided with a recessed fixing key groove 11 for coupling and fixing with the fixing bracket unit 50.

The handle unit 20 is rotatably coupled to the coupling rod (10). The handle unit 20 is rotatable about the coupling rod 10 axis.

As shown in FIG. 4, the handle unit 20 includes a holding member 21 rotatably coupled to the coupling rod 10 so that a user grips the first handle and a first adjustment coupled to the fixed bracket unit 50. The ball adjusting plate 23 provided between the ball plate 22a and the second adjusting ball plate 22b, the holding member 21 and the second adjusting ball plate 22b, the holding member 21 and the weight. It may include a control elastic member 24 provided between the control ball (23).

The gripping member 21 is a gripping portion 211 to be held by the user, a weight display portion 212 provided on one side of the gripping portion 211, and a blocking portion provided on the other side of the gripping portion 211 ( 213).

Unevenness is formed in the holding member 21 can facilitate the user's holding. The unevenness may be provided in the grip part 211 to prevent the user's hand from slipping.

The gripping member 21 may be formed to protrude a first coupling protrusion 214 for coupling with the rotation control unit (30). The first coupling protrusion 214 may protrude from the gripping member 21, that is, the weight display part 212 and the blocking part 213 in the longitudinal direction of the coupling rod 10.

The gripping member 21 may be formed with a recessed elastic control groove 215 for mounting support of the control elastic member 24. The elastic adjustment groove 215 may be formed in the gripping member 21, that is, the weight display unit 212 in the longitudinal direction of the coupling rod 10. The weight display unit 212 is disposed to face the second adjustment ball plate 22b. In addition, the resilient portion 213 may be formed in the resilient adjustment groove in the longitudinal direction of the coupling rod 10. The stopper 213 is disposed to face the first adjustment ball plate 22a.

The weight display unit 212 may display the weight according to the step of adjusting the weight on the outer peripheral surface according to the rotation direction. The weight displayed on the weight display unit 212 may determine the number according to the weight adjustment step of the dumbbell in one embodiment of the present invention. The weight display unit 212 can check the weight of the weight 40 is fixed to the rotation control unit (30).

The first coupling protrusion 214 and the elastic adjustment groove 215 may be provided on a surface of the weight display unit 212 facing the second adjustment ball plate 22b.

The stopper portion 213 may be provided with a second rotation locking portion 72 of the rotary stop unit 70 to be described later in accordance with the step of adjusting the weight on the outer peripheral surface according to the rotation direction.

The second control ball plate 22b is recessed or penetrated by a ball insertion portion 221 on a surface facing the gripping member 21. The ball insertion portion 221 is recessed or penetrated in a state where a plurality of the ball insertion portions 221 are spaced apart from each other along the rotation direction of the gripping member 21. The ball insertion unit 221 may determine the number according to the weight adjustment step of the dumbbell in one embodiment of the present invention.

A second coupling protrusion 222 for coupling with the fixing bracket unit 50 may be formed on the second adjustment ball plate 22b. The second coupling protrusion 222 may protrude in the longitudinal direction of the coupling rod 10 from the second adjustment ball plate (22b).

The second adjustment ball plate 22b has a hollow ring shape, the rotation member 31 of the rotation control unit 30 is inserted and supported, and the first coupling protrusion 214 and the first coupling groove 311. ) Can stabilize the fitting bond.

The weight adjustment ball 23 is selectively coupled to at least one of the ball insertion portion 221 according to the rotation of the gripping member 21. The weight adjustment ball 23 is elastically supported by the control elastic member 24 is capable of reciprocating movement in the longitudinal direction of the coupling rod (10). The weight adjusting ball 23 may be provided with two or more.

The control elastic member 24 elastically presses the weight control ball 23 toward the second control ball plate 22b based on the gripping member 21. One side of the control elastic member 24 is inserted into the elastic control groove 215, the other side may elastically support the weight adjustment ball (23).

The rotation control unit 30 is rotatably coupled to the coupling rod 10 with the coupling rod 10 as an axis. The rotation control unit 30 is coupled to the handle unit 20. The rotation control unit 30 is rotated in the coupling rod 10 in accordance with the rotation of the handle unit 20.

The rotation control unit 30 is a rotating member 31 and the rotating member 31 coupled to the handle unit 20 in a state rotatably coupled to the coupling rod 10 as shown in Figure 5, It may include a control step plate 32 provided to be spaced apart from each other.

The rotation control unit 30 may include a coupling ring member 36 for smoothing the rotation of the rotation member 31 in the state in which the rotation member 31 is inserted into the heavy material 40. The coupling ring member 36 is rotatably inserted into the rotation member 31, it is possible to stabilize the fitting coupling of the first coupling protrusion 214 and the first coupling groove 311.

The rotation control unit 30 may be formed with a recessed first coupling groove 311 for coupling with the handle unit 20. The first coupling groove 311 may be recessed in the longitudinal direction of the coupling rod 10 in the rotation control unit 30, that is, the rotation member 31. Then, since the first coupling protrusion 214 is fitted into the first coupling groove 311, the rotation control unit 30 is rotatable in accordance with the rotation of the handle unit 20. Positions of the first coupling protrusion 214 and the second coupling groove 521 may be opposite to each other.

At least one of the pressing groove portion 34 and the weight fixing unit 60 are formed at the edge of the adjustment step plate 32 corresponding to the autonomous rotation of the weight fixing unit 60 and the weight fixing unit 60. Pressing protrusions 35 protruding to be formed are alternately arranged.

When the pivot head member 62 of the weight fixing unit 60 is disposed in the pressure groove 34 according to the rotation of the rotation control unit 30, the rotary rod member 61 of the weight fixing unit 60 is Autonomous rotation is possible. When the pivot head member 62 of the weight fixing unit 60 is disposed on the pressure protrusion 35 in accordance with the rotation of the rotation control unit 30, the rotary rod member 61 of the weight fixing unit 60 is It can be rotated.

And when the adjusting step plate 32 is rotated in the state in which the rotating member 31 is inserted into the weight 40, the pressing protrusion 35 pivots the weight fixing unit 60, pivoting The weight fixing unit 60 may be coupled to the corresponding weight 40 to fix the weight 40 to the rotation control unit 30.

The adjusting step plate 32 corresponds 1: 1 with the weight 40. The adjusting step plate 32 corresponds to the weight fixing unit 60 1: 1.

The adjusting step plate 32 is provided with n (n is a natural number of 2 or more) spaced apart from each other on the rotating member (31). Here, the control step plate 32 is partitioned into 2 ⁿ unit compartments S according to the rotation direction of the control step plate 32 about the rotating member 31. In addition, the pressing groove 34 or the pressing protrusion 35 is formed in one unit division area S, or two or more unit division areas S are formed by combining. Then, the rotation control unit 30 is inserted into the n weights arranged in a line, it is possible to change the weight by as much as 2 ⁿ with the ⁿ weights (40).

For example, when the control step plate 32 is provided with two, it is inserted into two weights, it can represent four weight changes to the weight 40. As another example, when the control step plate 32 is provided with three, it is inserted into the three weights, it can represent the weight change of eight times the weight 40. As another example, when the control step plate 32 is provided with four, it is inserted into four weights, it can represent the weight change of 16 times the weight 40.

In the embodiment of the present invention, the adjusting step plate 32 is described as being provided with four spaced apart from each other on the rotating member 31.

The adjusting step plate 32 is the first step plate 321 provided on the rotating member 31 and the second step provided on the rotating member 31 in a state spaced apart from the first step plate 321. Step plate 322, the third step plate 323 provided in the rotating member 31 in a state spaced apart from the second step plate 322 and the state spaced apart from the third step plate 323 It may include a fourth step plate 324 provided on the rotating member 31.

The first step plate 321, the second step plate 322, the third step plate 323, and the fourth step plate 324 are spaced apart from each other by the rotating member 31. It is sufficient if it is provided, and does not limit the order of arrangement of each step plate. In an embodiment of the present invention, the first step plate 321, the second step plate 322, the third step plate 323, and the fourth step plate 324 are the rotating members ( 31) or may be sequentially provided along the longitudinal direction of the coupling rod (10).

At the edges of the first step plate 321, the pressing groove 34 and the pressing protrusion 35 are alternately arranged along the counterclockwise direction. In more detail, as shown in FIG. 6, an edge of the first step plate 321 is recessed in one unit compartment area along a counterclockwise direction based on a portion where the unit compartment area S is displayed. The -1 pressing groove portion, the first-second pressing protrusion formed to protrude in one unit compartment area, the first-third pressing groove portion formed by dividing three unit compartment areas together, and the three unit compartment regions are formed to protrude. The first to fourth pressure projections, the first to five compression grooves formed by incorporating three unit compartments, the first to six compression protrusions formed by combining the three unit compartments, and one unit compartment area. 1-7 pressing grooves recessed in the first and 1-8 pressing protrusions protruding in one unit compartment area are alternately arranged, the 1-8 pressing projections and the 1-1 pressing grooves are connected. do.

At the edge of the second step plate 322, the pressing groove 34 and the pressing protrusion 35 are alternately arranged along the counterclockwise direction. In more detail, as shown in FIG. 7, two unit compartment regions are formed in the counter-clockwise direction on the edge of the second step plate 322 to form a depression. 2-1 pressurizing groove portion, 2-2 pressurizing protrusion formed to protrude in one unit compartment area, 2-3 pressurizing groove portion formed to be recessed by combining two unit compartment areas, and protruding formation in one unit compartment area The 2-4 pressing protrusion which is formed, the 2-5 pressing groove which is formed to be recessed by combining the two unit compartment regions, the 2-6 pressing protrusion which is formed by combining the two unit compartment regions, and one unit compartment region. A 2-7 pressurizing groove portion recessed in the second unit, a 2-8 pressurizing protrusion portion formed by joining two unit compartment regions to protrude, a 2-9 pressurizing groove portion recessed in one unit compartment region, and two units Alternately, the 2-10 pressing protrusions are formed by combining the partition areas. It is arranged, and wherein the pressing projected 2 to 10 wherein the pressure is 2-1 groove portion is connected.

At the edges of the third step plate 323, the pressing groove 34 and the pressing protrusion 35 are alternately arranged along the counterclockwise direction. In more detail, as shown in FIG. 8, three unit compartment regions are formed in the counterclockwise direction of the third step plate 323 and are recessed on the edge of the unit compartment region S, as shown in FIG. 8. 3-1 pressurizing groove portion, 3-2 pressurizing protrusion formed to protrude in one unit compartment area, 3-3 pressurizing groove portion formed to be recessed by combining two unit compartment areas, and protruding formation in one unit compartment area 3-4 pressurized protrusions, 3-5 pressurized grooves formed in one unit compartment area, 3-6 pressurized protrusions protruding in one unit compartment area, and one unit compartment area. A 3-7 pressurizing groove portion formed therein, a 3-8 pressurizing protrusion portion formed by combining two unit compartment regions, a 3-9 pressurizing groove portion recessed in one unit compartment region, and 3 unit compartment regions. The 3-10 pressing protrusions which are joined together and formed to protrude are arranged alternately, The 3-10 pressurizing protrusion and the 3-1 pressurizing groove are connected to each other.

At the edges of the fourth step plate 324, the pressing groove 34 and the pressing protrusion 35 are alternately arranged along the counterclockwise direction. In more detail, as shown in FIG. 9, four unit compartment regions are formed in the counter-clockwise direction on the edge of the fourth step plate 324 to form a depression. 4-1 pressurizing groove portion, 4-2 pressurizing protrusion formed to protrude in one unit compartment area, 4-3 pressurizing groove portion formed to be recessed by combining two unit compartment areas, and protruding formation in one unit compartment area 4-4 pressurizing protrusions to be recessed, 4-5 pressurizing grooves formed to be recessed in one unit compartment area, 4-6 pressurizing protrusions formed by joining two unit compartment areas to protrude, and one unit compartment area. The recessed 4-7 pressing groove portion and the 4-8 pressing protrusions formed by combining four unit compartment regions are alternately arranged, and the 4-8 pressing protrusion and the 4-1 pressing groove portion are connected to each other. do.

The rotation control unit 30 may further include an adjustment guide plate 33 provided on the adjustment step plate 32. The adjustment guide plate 33 is the pivot head member 62 and the heavy weight 40 of the heavy weight fixing unit 60 when the pivot head member of the heavy weight fixing unit 60 is inserted into the pressing groove 34. ) To be partitioned. The adjustment guide plate 33 may facilitate close contact with the weight 40. The adjusting guide plate may be integrally formed with the adjusting step plate 32.

The weight 40 is the rotation control unit 30 is inserted. The weight 40 may be provided in plural in correspondence with the number of the adjusting step plate (32). In one embodiment of the present invention, the weight 40 may be provided with four corresponding to the four adjustment step plate (32).

The weight 40 is a first weight 40a and the second step plate 322 fixed to the rotation control unit 30 in accordance with the rotation of the first step plate 321 as shown in FIG. The second heavy weight 40b fixed to the rotation control unit 30 in accordance with the rotation of the) and the third heavy weight 40c fixed to the rotation control unit 30 in accordance with the rotation of the third step plate 323. ) And a fourth weight 40d fixed to the rotation control unit 30 according to the rotation of the fourth step plate 324.

The mounting groove 41 is formed in the weight 40, the mounting groove 41 is formed to be recessed so that the rotary member 31 is inserted, and the weight fixing unit 60 (the pivot head member 62 to be described later) is inserted. ) May include a fixing groove 42 recessed in a communication state.

In addition, the fastening groove 43 is formed in the fixing groove 42 so as to engage the heavy weight fixing unit 60 in accordance with the rotation of the rotation control unit 30 to the weight 40, and the mounting groove As the rotating member 31 is inserted into the at least one 41 of the cardboard paper groove 44 is formed in a recessed state in communication with the mounting groove 41 so that the adjustment step plate 32 is inserted further May be included.

In addition, the coupling jaw portion 45 may protrude from the weight 40 to overlap with the adjacent weight.

In addition, the weight 40 may be formed with a recessed support groove 46 coupled with the compartment rib 93 of the weight seating unit 90 to be described later.

The coupling jaw portion 45 is inserted into the support groove portion 46 formed in the adjacent heavy material, so as to face the cardboard paper groove 44 formed in the adjacent heavy material.

The support groove 46 penetrates in the height direction of the weight 40 and allows the coupling jaw portion 45 formed in the adjacent weight to be inserted.

For example, as shown in FIGS. 3 and 10, the coupling jaw portion 45 formed in the first weight 40a may be inserted into the support groove 46 formed in the second weight 40b. have. Then, the support groove 46 is formed to penetrate in the height direction of the weight 40, when the first weight 40a and the second weight 40b is detached, the first weight 40a The coupling jaw portion 45 may be formed to prevent interference with the second weight 40b.

Similarly, the coupling jaw portion 45 formed in the second weight 40b may be inserted into the support groove 46 formed in the third weight 40c.

The fixing bracket unit 50 is coupled to the coupling rod 10 so that the rotation control unit 30 is rotated. The fixing bracket unit 50 is fixed to the coupling rod 10, the handle bar 20 and the rotation control unit 30 in the coupling rod 10 to be rotated in a state coupled with each other. .

As shown in FIG. 2, the fixing bracket unit 50 is provided on one side of the separation bracket 51 and the separation bracket 51 disposed substantially parallel to the coupling rod 10 and the handle unit. A first bracket 52 coupled to the 20, a second bracket 53 provided at the other side of the separation bracket 51 and coupled to an end of the coupling rod 10, and the separation bracket 51. Is provided in the weight fixing unit 60 may include a pivot bracket 54 rotatably coupled.

The spaced bracket 51, the first bracket 52, and the second bracket 53 may have a "c" shape, and the pivot bracket 54 may have a "c" shape.

The fixing bracket unit 50 may be recessed with a second coupling groove 521 for coupling with the handle unit 20. The second coupling groove 521 may protrude from the first bracket 52 in the longitudinal direction of the coupling rod 10. The second coupling protrusion 222 and the second coupling groove 521 are fitted to each other to fix the first adjustment ball plate 22a and the second adjustment ball plate 22b to the first bracket 52, respectively. Can be. Positions of the second coupling protrusion 222 and the second coupling groove 521 may be opposite to each other.

The first bracket 52 may be formed to penetrate or recess the first rotating support portion through which the coupling rod 10 passes.

The second bracket 53 may be penetrated or recessed through the second rotation support part through which the coupling rod 10 passes. Here, a key groove coupling portion 531 for coupling with the fixed key groove 11 may be formed in the second bracket 53. Since the key groove coupling part 531 is provided in the second rotation support part and is coupled to the fixing key groove 11, the key groove coupling part 531 may prevent rotation of the second bracket 53 in the coupling rod 10.

The pivot bracket 54 may include a coupling bracket 541 overlapping and supporting the spaced bracket 51 and a pair of extension brackets 542 extending from both sides of the coupling bracket 541. Then, the fastening bolt (B) is screwed with the fastening nut (N) in the state passing through the spaced bracket 51 and the coupling bracket 541, the pivot bracket 54 to the spaced bracket (51) Can be combined.

A rotating support hole 543 may be formed in the extension bracket 542 so that the weight fixing unit 60 is rotatably coupled thereto. The rotation support hole 543 is provided in the lengthwise direction of the separation bracket 51 or the lengthwise direction of the coupling rod 10 to the extension bracket 542 corresponding to the number of the weight fixing unit 60. It may be formed through the spaced apart from each other.

The weight fixing unit 60 is rotatably coupled to the fixed bracket unit 50 in the direction of the cross direction of the coupling rod 10 in the axis. The weight fixing unit 60 is pivoted in the fixing bracket unit 50 in accordance with the rotation of the rotation control unit (30). The weight fixing unit 60 corresponds 1: 1 with the weight 40. The weight fixing unit 60 corresponds to the number of the adjustment step plate 32 of the rotation control unit 30 1: 1.

The weight fixing unit 60 is a pivot rod member 61 rotatably coupled to the fixed bracket unit 50, and to rotate the rotary rod member 61 in accordance with the rotation of the rotation control unit (30). A pivot head member 62 protruding in a direction crossing the longitudinal direction of the rotary rod member 61 and the rotary rod member 61 so as to remain in engagement with the corresponding weight 40 according to the rotation of the rotary rod member 61. It may include a coupling holding member (63) protruding in the longitudinal direction of the).

The rotary rod member 61 may exhibit a cylindrical shape to freely rotate.

The pivot head member 62 is seated in the pressure groove 34, and moves to the pressure protrusion 35 in accordance with the rotation of the rotation control unit 30, it is possible to rotate the rotating rod member 61. . The pivot head member 62 may be detachably coupled to the rotating rod member 61 through screw coupling.

The coupling holding member 63 protrudes in a semicircular shape from the rotary rod member 61 about the axis of the rotary rod member 61 or eccentrically protrudes from the rotary rod member 61 about the axis of the rotary rod member 61. Can be.

The weight fixing unit 60 may further include a support ring member 64 in which the rotary rod member 61 is rotatably supported. The support ring member 64 may prevent friction between the fixed bracket unit 50 and the rotary rod member 61 and smooth the rotation of the rotary rod member 61. In addition, it is possible to prevent the rotating rod member 61 from flowing in the fixing bracket unit 50 along the longitudinal direction of the rotating rod member 61.

In one embodiment of the present invention, the weight fixing unit 60 is a first fixed unit which is pivoted in accordance with the rotation of the first step plate 321, and the pivoting movement in accordance with the rotation of the second step plate 322 The second fixing unit, a third fixing unit pivoting according to the rotation of the third step plate 323, and a fourth fixing unit pivoting according to the rotation of the fourth step plate 324. have.

Weight-adjustable dumbbell according to an embodiment of the present invention may further include at least one of the rotary stopping unit 70, the support elastic member 80, the weight seating unit 90 and the closing member.

The rotation stopping unit 70 may block the rotation of the handle unit 20 so that the fixed state of the heavy material 40 is maintained.

As shown in FIG. 11, the rotation stopping unit 70 is rotatably coupled to any one of the holding member 21 and the first adjustment ball plate 22a of the handle unit 20. A portion 71 and a second rotation locking portion 72 provided along the outer circumferential surface of the other of the holding member 21 and the first adjustment ball plate (22a).

When the first rotation locking portion 71 and the second rotation locking portion 72 are engaged, rotation of the gripping member 21 based on the coupling rod 10 may be prevented. In addition, when the locking engagement between the first rotation locking portion 71 and the second rotation locking portion 72 is released as the first rotation locking portion 71 rotates, the coupling rod 10 is referred to. When the handle unit 20 is free to rotate and the first rotation locking unit 71 and the second rotation locking unit 72 are engaged with each other, the handle unit 20 based on the coupling rod 10. ) Rotation can be prevented.

For example, one of the gripping member 21 and the first adjustment ball plate 22a is provided with an installation groove 73 recessed, and the first rotation locking portion 71 rotates in the installation groove 73. Possibly combined. A fixing protrusion 74 in which one of the holding member 21 and the first adjustment ball plate 22a is held by the first rotation locking portion 71 according to the rotation of the first rotation locking portion 71. Can protrude. The fixing protrusion 74 may protrude from the installation groove 73.

The second rotation locking portion 72 may be provided along an outer circumferential surface which is an edge of the rotation direction of the handle unit 20. The second rotation locking unit 72 may determine the number according to the weight adjustment step of the dumbbell in one embodiment of the present invention.

Although not shown, the first rotation locking portion 71 is provided in the fixed bracket unit 50, that is, the first bracket 52, and the second rotation locking portion 72 is the handle unit 20. That is, the gripping member 21 may be provided.

Positions of the first rotation locking portion 71 and the second rotation locking portion 72 may be opposite to each other.

The support elastic member 80 is coupled to the fixed bracket unit 50. The support elastic member 80 elastically supports the weight fixing unit 60 toward the rotation control unit 30 based on the fixing bracket unit 50. The support elastic member 80 may elastically support the pivot head member 62 in a state where the pivot head member 62 is seated in the pressing groove 34. The support elastic member 80 elastically pressurizes the pivot head member 62 when the pivot head member 62 is located on the pressing protrusion 35 so that the pivot head member 62 is pressed by the pressing protrusion ( It can be stabilized in 35). Although not shown, a support groove (not shown) in which a part of the pivot head member 62 is inserted and recessed is formed in the pressure protrusion 35 to stabilize the pivot head member 62 in the pressure protrusion 35. To be supported.

The support elastic member 80 has a support plate portion 81 coupled to the fixed bracket unit 50 and an elastic wing portion bent from the support plate portion 81 so as to elastically support the pivot head member 62. 82). The elastic wing 82 is to correspond 1: 1 with the pivot head member 62 of the weight fixing unit 60.

The support plate 81 is a fastening bolt (B) when the fastening bolt (B) is screwed with the fastening nut (N) in a state passing through the separation bracket 51 and the coupling bracket 541, By screwing the fastening nut (N), the support elastic member 80 may be fixed to the fixing bracket unit 50.

The weight mounting unit 90 is supported by a plurality of the weight 40 is arranged in response to the rotation control unit (30).

A seating space 91 is formed in the weight seating unit 90 on which the weight 40 is seated. In addition, the weight seating unit 90 may be provided with a partition block 92 for separating the weight 40 to both sides of the dumbbell. The partition block 92 may protrude in correspondence with the handle unit 20 in the seating space 91. A partition rib 93 for partitioning the plurality of heavy materials 40 arranged in the heavy weight seating unit 90 may be formed to protrude. The compartment rib 93 may protrude from the seating space 91. The partition rib 93 may be inserted into the support groove 46 provided in the weight 40. As the seating space 91 is partitioned by the partition ribs 93, individual positions of the plurality of weights 40 may be clearly specified.

The closing member keeps the handle unit 20, the rotation control unit 30 and the fixed bracket unit 50 in a stable state coupled to the coupling rod 10. The closing member is coupled to the coupling rod 10 so that the coupling rod 10 and the handle unit 20, the rotation control unit 30 and the fixing bracket unit 50 is maintained in a coupled state.

The closing member may include a closing bolt (M2) that is screwed to the end of the coupling rod (10). The closing bolt M2 may be screwed to the coupling rod 10 while the head is supported on the end of the coupling rod 10 and the second bracket 53 of the fixing bracket unit 50. .

The closing member may further include a closing plate (M1) provided between the coupling rod 10 and the closing bolt (M2). Then, the closing bolt (M2) may be screwed to the end of the coupling rod 10 through the closing plate (M1) while the head is supported on the closing plate (M1). At this time, the closing plate (M1) is to be supported on the end of the coupling rod 10 and the second bracket 53 of the fixing bracket unit 50.

It describes a weight control method in a weight adjustable dumbbell according to an embodiment of the present invention. The weight 40 is seated on the weight seating unit 90. The rotary member 31 of the rotation control unit 30 coupled to one side of the handle unit 20 is inserted into the mounting groove 41 of the weight 40.

Initially, the pivot head member 62 of the weight fixing unit 60 is placed in a pressure groove 34 provided in the rotation control unit 30. In other words, the handle unit 20 is rotated so that the pivot head member 62 of the first fixing unit is seated in the first-first pressurizing groove, and the pivot head member 62 of the second fixing unit is made of first. It is seated in the 2-1 pressure groove, the pivot head member 62 of the third fixed unit is seated in the 3-1 pressure groove, the pivot head member 62 of the fourth fixed unit is the 4-1 pressure Make sure that it is seated in the groove.

Then, the handle unit 20 is rotated in the state in which the weight 40 is inserted into the rotation control unit 30 so that the first-second pressure protrusion of the first step plate 321 is formed of the first fixing unit. When the pivot head member 62 is supported, the first fixing unit may fix only the first weight 40a to the rotation control unit 30 according to the rotation of the first fixing unit. Here, the coupling holding member 63 may be inserted into the locking groove portion 43 of the weight 40. In addition, the support elastic member 80 is to elastically press the pivot head member 62.

And when the user lifts the handle unit 20 from the heavy weight seating unit 90 while holding the handle unit 20, only the first weight 40a is fixed to the rotation control unit 30 State is achieved.

Similarly, when the second-second pressing protrusion of the second step plate 322 supports the pivot head member 62 of the second fixing unit as the handle unit 20 rotates, the second weight 40b ) Can be fixed to the rotation control unit (30).

According to the rotation of the handle unit 20 by using this method, at least one pressure protrusion 35 provided in the rotation control unit 30 rotates the pivot head member 62 of the weight fixing unit 60. By supporting at least one of the weight 40 can be fixed to the rotation control unit (30).

For example, the pressing groove 34 provided in the adjusting step plate 32 of the rotation control unit 30 is referred to as "0", the pressure is provided in the control step plate 32 of the rotation control unit 30. The protrusion 35 is indicated by "1".

Then, "0" and "1" represent 16 combinations according to the rotation of the handle unit 20. In other words, the 16 combinations are "0000", "100", "0100", "0010", "0001", "1100", "1010", "1001", "0110", "0101", "0011" "," 1110 "," 1101 "," 1011 "," 0111 "," 1111 ".

At this time, since the pressing protrusion 35 corresponding to “1” in the adjusting step plate 32 supports the pivot head member 62 in rotation, the corresponding weight object 40 corresponding to “1” in response thereto. It can be fixed to the rotation control unit (30).

In the above description, the heavy weight fixing unit 60 is coupled to the corresponding heavy weight 40. The coupling holding member 63 of the heavy weight fixing unit 60 is inserted into the fixing groove 42 of the heavy weight 40. It means that it is coupled with the locking groove 43 in the state. In addition, the heavy weight fixing unit 60 is coupled with the corresponding weight 40 in the state that the coupling holding member 63 of the weight fixing unit 60 is inserted into the fixing groove 42 of the weight 40 The coupling holding member 63 may mean to support the weight 40 by pressure.

In addition, in the above description, the weight fixing unit 60 fixes the weight 40 to the rotation control unit 30 that the weight fixing unit 60 is coupled with the weight 40 as a corresponding weight. Meaning 40 is not separated from the rotation control unit (30). In addition, the heavy weight fixing unit 60 to fix the weight 40 to the rotation control unit 30 means that the weight 40 as the weight fixing unit 60 is coupled with the weight 40 It may mean that the pressure is supported by the rotation control unit (30).

12 to 14, another embodiment of the weight adjustable dumbbell according to the present invention will be described.

Weight-adjustable dumbbell according to the present embodiment is a handle unit 1000, a coupling rod 2000 penetrating through the handle unit 1000, heavy materials disposed on both sides of the handle unit 1000, weight fixing unit, rotation control Unit, fixed bracket unit, weight display ring 7200, rotation stopping unit 7100 and a supporting elastic member.

Here, the heavy weight includes a first heavy weight unit 4100 disposed on one side of the handle unit 1000 and a second heavy weight unit 4200 disposed on the other side of the handle unit 1000.

The weight fixing unit includes a first weight fixing unit 6100 for fixing the first weight unit 4100 and a second weight fixing unit 6200 for fixing the second weight unit 4200. .

The rotation control unit may include a first rotation control unit 3100 for rotating the first weight fixing unit 6100 and a second rotation control unit 3200 for rotating the second weight fixing unit 6200. Include.

The support elastic member may include a first support elastic member 8100 and a second weight fixing unit 6200 for pressing the first weight fixing unit 6100 toward the first rotation control unit 3100. And a second support elastic member 8200 for pressing in the direction of the second rotation control unit 3200.

The fixing bracket unit includes a first fixing bracket unit 5100 and a second fixing bracket unit 5200 disposed on both sides of the handle unit 1000.

Here, the first fixing bracket unit 5100 is a first upper bracket 5110 disposed on the upper portion of the first support elastic member 8100, one end is coupled to the first upper bracket 5110 and the other end is It includes a first side bracket (5120) coupled to one end of the coupling rod (2000).

Similarly, the second fixed bracket unit 5200 has a second upper bracket 5210 disposed on the second support elastic member 8200 and one end thereof is coupled to the second upper bracket 5210 and the other end thereof. A second side bracket 5220 is coupled to the other end of the coupling rod 2000.

The handle unit 1000 is provided with a hollow body 1110, one end of the handle unit 1000 is coupled to the first rotation control unit 3100 and the first coupling portion 1150, and the handle unit It is provided on the other end of the 1000 includes a second coupling portion 1140 coupled to the second rotation control unit 3200.

In addition, the handle unit 1000 is provided between the hollow body 1110 and the first coupling portion 1150, the first extension body 1120 that is selectively coupled with the rotation stopping unit 7100, And a second extension body 1130 provided between the hollow body 1110 and the second coupling part 1140 and coupled to the weight display ring 7200.

The first coupling part 1150 has a first coupling protrusion 1151 for protruding from the first rotation control unit 3100, and the second coupling part 1140 has the second rotation control. A second coupling protrusion 1141 for coupling with the unit 3200 is protruded.

On the outer circumferential surface of the first extension body 1120, a first locking pin insertion portion 1121 is formed to selectively insert the first locking pin 7110 of the rotation stopping unit, and the second extension body 1130. A ring coupling groove 1131 is formed in the display ring coupling portion 7210 of the weight display ring.

As a result, when the handle unit 1000 is rotated, the first rotation control unit 3100, the first weight fixing unit 6100, the weight display ring 7200, the second rotation control unit 3200 ) And the second weight fixing unit 6200 is rotated.

The first heavy weight fixing unit 6100 and the second heavy weight fixing unit 6200 are selectively rotated by the first rotation adjusting unit 3100 and the second rotation adjusting unit 3200. 4100 and the second weight unit 4200 are selectively combined with each other.

For example, the second rotation control unit 3200 is disposed to protrude at a predetermined interval on the outer surface of the second rotating member 3210 and the second coupling member 1140 and the second rotating member 3210. A plurality of second control step plate 3220 is included.

The second rotating member 3210 has a second rotating member coupling portion 3211 corresponding to the second coupling protrusion 1141 in the form of a groove.

The second adjusting step plates 3220 correspond to the plurality of unit weight fixing units provided in the second weight fixing unit 6200 one-to-one and selectively rotate the corresponding unit weight fixing unit.

The rotation stopping unit 7100 may include a first locking pin 7110 and a first locking pin 7110 that may be inserted into a first locking pin insertion portion 1121 formed on an outer circumferential surface of the first extension body 1120. A first spring 7120 elastically supported, a lever 7130 for handling movement of the first locking pin 7110, and penetrating through the lever 7130 and the first locking pin 7110. Lever pin 7140 is included.

The first upper bracket 5110 includes a first upper bracket body 5113 and a first extension body accommodating part 5111 extending downward from one end of the first upper bracket body 5113.

The first extended body 1120 is accommodated in the first extended body accommodating part 5111. That is, the first extension body accommodating part 5111 is disposed outside the first extension body 1120, and the first extension body accommodating part 5111 surrounds the first extension body 1120. Have

A locking pin through hole 5115 through which the first locking pin 7210 penetrates is formed in the first upper bracket body 5113, and the lever 7130 is formed on an upper surface of the first upper bracket body 5113. The lever accommodating part 5117 which accommodates is recessed.

The first support elastic member 8100 is disposed between the first upper bracket body 5113 and the first weight fixing unit 6100.

The second upper bracket 5210 includes a second upper bracket body 5213 and a display ring accommodating portion 5211 extending downward from one end of the second upper bracket body 5213.

The weight display ring 7200 is accommodated in the display ring accommodation portion 5211. That is, the display ring accommodating portion 5211 is disposed outside the weight display ring 7200, and the display ring accommodating portion 5211 surrounds the weight display ring 7200.

A weight display ring adjusting unit 7300 selectively coupled to the weight display ring 7200 is disposed between the weight display ring 7200 and the second upper bracket body 5213.

The weight display ring adjusting unit 7300 may include a second locking pin 7310 and a second locking pin (7210) selectively coupled with a second locking pin insertion unit 7220 formed on an outer circumferential surface of the weight display ring 7200. 7310 includes a second spring 7330 to elastically support.

As a result, when the weight display ring 7200 is rotated according to the rotation of the handle unit 1000 and positioned at a specific position, the second locking pin 7310 may be caused by the elastic restoring force of the second spring 7330. The rotation of the weight display ring 7200 is stopped while being inserted into the second locking pin insertion unit 7220.

On the other hand, the second support elastic member 8200 is disposed between the second upper bracket body (5213) and the second weight fixing unit 6200.

The second support elastic member 8200 includes a support plate portion 8210 and an elastic wing portion 8220 formed by bending a portion of the support plate portion 8210 and then bending it.

The support plate portion 8210 is formed with a slit 8230 to make the elastic wing portion 8220 more flexible in order to press the second heavy weight fixing unit 6200 more stably.

Specifically, the slit 8230 is formed outside the region cut out to form the elastic wing portion 8220 of the support plate portion 8210. For example, when the slit 8230 is formed in a 'c' shape, the elastic wing portion 8220 is a portion of the support plate portion 8210 present in the inner region of the slit 8230 is cut and bent Has a form. In this case, an area where the elastic wing part 8220 and the support plate part 8210 are extended, that is, a non-cut area is disposed adjacent to the closed portion of the 'c' shape of the slit 8230.

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 (15)

Coupling rods formed long in the longitudinal direction; A handle unit penetrated by the coupling rod and rotatably disposed with respect to the coupling rod; A rotation control unit coupled to the handle unit while penetrated by the coupling rod, and rotating together with the rotation of the handle unit; A fixed bracket unit coupled to the coupling rod; A plurality of heavy materials into which the rotation control unit is inserted; And A plurality of rotatably coupled to the fixed bracket unit with an axis intersecting the longitudinal direction of the coupling rod, and pivoting in the fixed bracket unit according to the rotation of the rotation control unit and corresponding one to one with the plurality of heavy objects; It includes a weight fixing unit; When the rotation control unit is rotated according to the rotation of the handle unit in the state in which the rotation control unit is inserted into the plurality of weights, the rotation control unit pivots at least one of the plurality of weight fixing units, Pivot lifting weight fixed unit is a weight adjustable dumbbell, characterized in that coupled with the corresponding weight. The method of claim 1, The handle unit, A gripping member rotatably coupled to the coupling rod for the user to grip; A control ball plate coupled to the fixed bracket unit, the ball facing part being recessed or penetratingly formed in a state spaced apart from each other along the rotation direction of the gripping member; A weight adjustment ball provided between the gripping member and the adjustment ball plate and selectively coupled to at least one of the ball insertion portions according to the rotation of the gripping member; And A weight-adjustable dumbbell, characterized in that it is provided between the holding member and the weight control ball, the elastic elastic member for elastically pressing the weight control ball toward the control ball plate based on the holding member. The method of claim 1, The rotation control unit, Rotating member coupled to the handle unit in a state rotatably coupled to the coupling rod; And And a control step plate provided to be spaced apart from each other on the rotating member and corresponding to the weight object 1: 1. At the edge in accordance with the rotation direction of the adjustment step plate, at least one of the weight fixing unit is formed with a pressing protrusion protruding to rotate, the pressing groove is arranged alternately with the pressing protrusion, When the adjusting step plate is rotated in the state that the rotating member is inserted into the weight, the pressing protrusion pivots the weight fixing unit, the pivot fixing unit is coupled to the corresponding weight to the corresponding weight Weight adjustable dumbbell characterized in that fixed to the rotation control unit. The method of claim 3, In the heavy article, A mounting groove formed to be recessed to insert the rotating member; And Weight adjustment type dumbbells characterized in that it comprises; a fixed groove formed in a recessed state in communication with the mounting groove so that the weight fixing unit is inserted; The method of claim 4, wherein In the heavy article, The hook groove is formed to be recessed in the fixing groove so that the heavy weight fixing unit is coupled according to the rotation of the rotation control unit, and the mounting groove is communicated so that the adjustment step plate is inserted as the rotating member is inserted into the mounting groove. Weight-adjustable dumbbell, characterized in that it further comprises at least any one of the paperboard groove recessed in the state. The method of claim 1, The fixing bracket unit, A spaced bracket disposed substantially parallel to the coupling rod; A first bracket provided on one side of the separation bracket and coupled to the handle unit; A second bracket provided on the other side of the separation bracket and coupled to an end of the coupling rod; And And a pivot bracket provided on the separation bracket so that the weight fixing unit is rotatably coupled thereto. The method of claim 1, The weight fixing unit, A rotating rod member rotatably coupled to the fixing bracket unit; A pivot head member protruding in a direction crossing the longitudinal direction of the rotary bar member to pivot the rotary bar member according to the rotation of the rotation control unit; And And a coupling retaining member protruding in the longitudinal direction of the rotary bar member so that the state of engagement with the corresponding weight is maintained according to the rotation of the rotary bar member. The method according to any one of claims 1 to 7, Weight control type dumbbells further comprises; a rotation stopping unit for stopping the rotation of the handle unit to maintain the fixed state of the weight. The method according to any one of claims 1 to 7, A weight-adjustable dumbbell further comprising: a support elastic member disposed between the fixed bracket unit and the heavy weight fixing unit and elastically supporting the heavy weight fixed unit toward the rotation control unit based on the fixed bracket unit. . The method according to any one of claims 1 to 7, Weight-adjustable dumbbells further comprises; a weight seating unit in which a plurality of the weight is arranged to support the rotation control unit. The method of claim 1, Further comprising a rotation stop unit for preventing the rotation of the handle unit, and the weight display ring coupled to the handle unit to rotate together, The handle unit includes a hollow body, a first extension body provided on one side of the hollow body and selectively coupled to the rotation stopping unit, and a second extension body provided on the other side of the hollow body and coupled to the weight display ring. Weight adjustable dumbbell comprising a. The method of claim 11, The rotation stopping unit includes a first locking pin that can be inserted into a first locking pin insertion portion formed on an outer circumferential surface of the first extension body, a first spring elastically supporting the first locking pin, and the first locking pin. And a lever for handling the lever, and a lever pin penetrating through the lever and the first locking pin. The method of claim 11, A weight display ring adjusting unit disposed between the fixed bracket unit and the weight display ring to selectively lock the weight display ring; The weight display ring adjusting unit includes a second locking pin that can be inserted into a second locking pin insertion unit formed on an outer circumferential surface of the weight display ring, and a second spring that elastically supports the second locking pin. Type dumbbell. The method of claim 11, The fixing bracket unit includes a first fixing bracket unit and a second fixing bracket unit disposed on both sides of the handle unit, The first fixing bracket unit has a first upper bracket having a first extending body receiving portion for receiving the first extension body, one end is coupled to one end of the first upper bracket and the other end is coupled to the coupling rod Weight adjustable dumbbell, characterized in that it comprises a bracket. The method of claim 1, And a support elastic member disposed between the fixed bracket unit and the weight fixing unit, wherein the support elastic member is bent after the support plate portion and the support plate portion are cut and pressurized to fix the weight fixing unit. It includes an elastic wing portion, Weight control type dumbbells, characterized in that the slit is formed on the outside of the region cut in order to form the elastic wing portion of the support plate to stably press the weight fixing unit.

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