KR20110118442A - Weight controllable dumbbell - Google Patents

Abstract

The present invention relates to a dumbbell that can adjust the weight, in particular, the weight of the dumbbell can be freely adjusted while maintaining the appearance of the dumbbell the same, it is possible to solve the psychological inferiority between people exercising in the same space, the user only a few dumbbells It is a weight adjustable dumbbell that allows you to exercise with various weight dumbbells. Weight controllable dumbbell of the present invention includes a handle having a predetermined length, a fixed weight provided at both ends of the handle and having a groove having a predetermined depth, and a variable weight that can be inserted into the groove of the fixed weight. It features.

Description

Dumbbell with adjustable weight {WEIGHT CONTROLLABLE DUMBBELL}

The present invention relates to a dumbbell that can be adjusted in weight. More specifically, it relates to a dumbbell that has a handle and a fixed weight, weight adjustable.

In order to strengthen the muscle strength of a specific part, a movement method of moving a heavy object against the direction of gravity has been used. As the most basic exercise device for this movement, i) called a weight lifting device, A relatively large barbell (barbell) to be lifted, and a relatively small dumbbell (ii) called `` dumbbell '' and held by one hand of the user are widely known.

In the case of barbells, the dumbbells are usually configured to be able to exercise by adjusting the weight by adding or removing a weight chain plate made of metal. Due to the nature of the way in which the force is applied, the weight-decreasing method of the plate stacking structure is generally not applied.

Therefore, most of the dumbbells currently provided are provided in a completed form to have a certain weight, and when you want to exercise with different weight, it is provided to select a separate dumbbell having a different weight and size. As a result, in a joint exercise space such as a health club, it is necessary to have dumbbells of various weights, and there is an inconvenience of having to purchase and prepare dumbbells of various weights in a large space. In order to solve this problem, the weight of the dumbbell can be adjusted, such as Korean Patent Publication No. 2009-96041 (published Sep. 10, 2009) or WO 2009/023127 (published Feb. 19, 2009). Inventions are known.

However, in the inventions of dumbbells, when the weight is adjusted, the weight is easily perceived by the naked eye from the outside, so when people use a dumbbell to exercise in a common exercise space such as a gym, the weight difference of the dumbbells between people There is a problem that makes you feel psychological superiority or inferiority.

The present invention is to solve the conventional problems as described above, it is possible to freely adjust the weight of the dumbbell while maintaining the appearance of the dumbbell, the same can solve the psychological inferiority between people exercising in the same space, It is an object of the present invention to provide a weight-adjustable dumbbell that allows the user to exercise with a dumbbell of various weights only with the dumbbell.

In order to achieve the above object, the present invention is a handle having a predetermined length; Fixed weights provided at both ends of the handle and having grooves of a predetermined depth; And including a variable weight that can be inserted into the groove of the fixed weight, while maintaining the same appearance of the dumbbell can be freely adjusted the weight of the dumbbell, can solve the psychological inferiority between people exercising in the same space, It is characterized by allowing the user to exercise with dumbbells of various weights with only dumbbells.

Furthermore, the groove of the fixed weight is formed on the inner surface of the fixed weight, it is preferable that it is difficult for other users to visually recognize the number of the variable weight coupled to the groove.

Or the groove of the fixed weight is formed on the outer surface of the fixed weight, it is characterized in that the user can easily install and remove a plurality of fixed weight in a state that does not separate the handle and the fixed weight.

And it further comprises a thread formed on each of the contact surface and the handle is fixed, it is preferable to form the handle and the fixed weight separately, easy to manufacture, it is possible to screw the handle and the fixed weight to each other.

In addition, further comprising a thread formed on the outer circumferential surface of the variable weight and the inner circumferential surface of the groove, the variable weight can be screwed into the groove.

On the other hand, the hinge is coupled to one side of the handle or the fixed weight, further comprising a locking screw that can block a portion of the groove inlet of the fixed weight, the variable weight in a quick time without the user need to rotate the variable weight multiple times It is desirable to be able to insert and remove in the groove of the fixed weight.

Furthermore, the weight is the same as the variable weight, the weight is light, and further including a dummy weight (Dummy weight) that can be inserted into the groove of the fixed weight, even if only a few variable weight is installed in the groove of the fixed weight dumbbell Its appearance is always the same, so it is difficult for other users to visually recognize the number of variable weights.

In addition, the variable weight is preferably in the shape of a disk, provided with a plurality of through holes penetrating the variable weight, the user can easily rotate the variable weight in the state in which the finger is inserted into the through hole can be inserted into the groove It is preferable.

Or the variable weight is made of a semi-circular plate shape, characterized in that the user can easily install or remove the semi-circular plate-shaped variable weight in a fixed state without being separated from the handle and the fixed weight.

In addition, the handle includes a first handle and a second handle coupled to each other in a straight line, the first handle and the second handle is provided with a thread, it is preferable that the fixed portion is fixed without rotation with respect to the handle during the user's movement Do.

The weight adjustable dumbbell of the present invention can freely adjust the weight of the dumbbell while maintaining the same appearance of the dumbbell, can solve the psychological inferiority between people exercising in the same space, and only a few dumbbells, the user can vary the weight It gives you the effect of exercising with dumbbells.

1 and 2 are a perspective view and a cross-sectional view showing a weight adjustable dumbbell according to the present invention;
3 to 6 are a perspective view and a cross-sectional view showing another embodiment of a weight adjustable dumbbell according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of a weight controllable dumbbell according to the present invention.

[First Example ]

Referring to Figure 1, the weight adjustable dumbbell according to the present invention includes a handle 10, a fixed weight 20 and a variable weight (30). Handle 10 is made of a cylindrical shape having a predetermined length, when the user grips the dumbbell is configured to be in direct contact with the user's fingers and palm. Fixing weight 20 has a constant weight and is installed to be symmetrical to both ends of the handle 10, and has a recess 24 of a predetermined recessed shape. Variable weight 30 also has a certain weight, it is provided with a plurality of discs to be inserted into the groove 24 of the fixed weight 20.

In FIG. 1A, the groove 24 is formed inside the fixed weight 20, and the variable weight 30 is inserted and installed in the groove 24, and FIG. 1B is illustrated. The three variable weight 30 is inserted into the groove 24 of the fixed weight 20 is shown.

When the variable weight 30 is configured in the form of a disk as shown in Figure 1, when the handle 10 and the fixed weight 20 is formed to be fixed can be installed or removed a number of variable weight (30) none. To prevent this, the fixing weight 20 is detachably installed with respect to the handle 10, and as shown in (b) of FIG. 1, both end portions of the handle 10 and the inner surface of the fixing weight 20 are provided. Where threads 12 and 22 are formed in contact with each other, it is preferable that the handle 10 and the fixed weight 20 is configured to be screwed.

Threads 12 and 22 respectively formed on the handle 10 and the fixed weight 20 may be formed at both ends of the handle 10 and the two fixed weights 20, or one end of the handle 10 It is formed only in one anchor 20 and the handle 10 and the other anchor 20 may be fixed to each other.

At this time, the variable weight 30 is preferably inserted into the groove 24 formed in the fixed weight 20, it is preferably fixed in the groove 24. This is because if the variable weight 30 is not fixed in the groove 24, the variable weight 30 may be separated from the groove 24 during the user's exercise using the dumbbell. Referring to FIG. 2, in order to fix the variable weight 30 to the groove 24 as described above, threads 32 and 26 are formed on the outer circumferential surface of the variable weight 30 and the inner circumferential surface of the groove 24, respectively. The variable weight 30 is configured to be screwed into the groove 24.

Therefore, when the user adjusts the weight of the dumbbell adjustable weight according to the present invention, after removing one fixing weight 20 from the handle 10, the variable weight 30 in the groove 24 of the fixing weight 20 ) As many times as you want. At this time, the user inserts a finger into the through-hole 36 formed in the variable weight 30, holding the variable weight 30 and inserting the variable weight 30 into the groove 24 of the fixed weight 20 to rotate The variable weight 30 is fixed by rotating inward along the thread 26 of the groove 24. The user may arbitrarily adjust the weight of the dumbbell by inserting a plurality of variable weights 30 into the grooves 24 of the fixed weight 20 as necessary. As described above, two, three or more through holes 26 are formed in the variable weight 30, so that the user can easily rotate the finger by inserting the finger into the variable weight 30.

As described above, the dumbbell with adjustable weight according to the present invention can adjust the weight of the dumbbell by inserting as many variable weights 30 as necessary into the groove 24 formed in the fixed weight 20. Regardless of the number of weights 30, the shape of the dumbbell is constant. Therefore, even if multiple users use dumbbells having different weights at the same time in the joint exercise space, the dumbbell weights of other users cannot be recognized by the naked eye, thereby providing an effect of resolving psychological inferiority or superiority between users.

In addition, if only a few handles 10, fixed weights 20, and a plurality of variable weights (30) equipped with various users can configure the dumbbells of the weight appropriate to their needs, the joint exercise space From the point of view of the provider to provide a dumbbell exercise equipment for a small space in a small cost is effective.

[Second Example  - From an anchor  Location of the groove]

On the other hand looks at another embodiment to which the present invention is applied in addition to the first embodiment described so far. First, as shown in FIG. 3, the groove 24 formed in the fixed weight 20 may be formed not only on the inner surface of the fixed weight 20 but also on the outer surface of the fixed weight 20.

In the first embodiment, since the groove 24 is formed inside the fixed weight 20, the number of the variable weights 30 inserted into the groove 24 is difficult to be recognized by other users, but the variable weight 30 ), There is an inconvenience in that at least one fixing weight 20 to be removed from the handle 10 when installing or removing.

In the second embodiment shown in FIG. 3, since the groove 24 is exposed to the outside of the fixed weight 20, the variable weight 30 without the user removing the fixed weight 20 from the handle 10. It can provide a convenience that can be directly installed or removed in the groove 24 of the fixed weight 20, and also because the handle 10 and the fixed weight 20 does not need to be separated, the handle 10 and It is also possible to form the fixed weight 20 integrally from the beginning.

In this case, although not shown in FIG. 3, the variable weight 30 has a thread 32 (see FIG. 2 below) and a through hole 36, and the thread 22 is also formed on the inner circumferential surface of the groove 24 of the fixed weight 20. It is preferred that the variable weight 30 is screwed into the groove 24 in the same manner as the first embodiment.

[Third Example  - Fixed weight  At home Variable weight Fixed  Device]

In addition, the first and second embodiments have the advantage that the variable weight 30 is firmly fixed inside the groove 24 during the user's movement because the variable weight 30 is screwed into the groove 24, but the user dumbbell When adjusting the weight of the variable weight 30 to hold one by one by rotating the inside of the groove 24, there is an inconvenience that it takes a relatively long time to adjust the dumbbell weight.

In the third embodiment of the present invention illustrated in FIG. 4, no thread is formed in the groove 24 of the fixed weight 20, and no thread is formed in the outer circumferential surface of the variable weight 30. Instead, the locking screw 16 is provided so that the variable weight 30 does not escape to the outside of the groove 24 during the movement. The lock screw 16 may be formed at both ends of the handle 10 or the fixed weight 20, and hinged to the handle 10 or the fixed weight 20, as shown in FIG. It is provided to fix the variable weight 30 by blocking the inlet of the).

This third embodiment is provided with a locking screw 16 which allows the user to block the inlet of the groove 24 after inserting the variable weight 30 into the groove 24 (without rotating it). Compared to the second embodiment, the user can install and remove the variable weight 30 at a faster time.

However, in the case of the third embodiment, for example, if five variable weights 30 are installed in the grooves 24 as shown in FIG. 4 (b), the user may have four or less variable weights 30 installed therein. During the movement of the variable weight 30 reciprocating in the groove 24 may give a strain to the user's arm and generate noise. In order to prevent this, for example, when only three variable weights 30 are installed, the shape and shape of the variable weight 30 are the same, but two weight dummy weights (not shown) are installed and the lock screw 16 is blocked. It is preferable to fix the variable weight 30 to the inside of the groove | channel 24 by this.

[4th Example  -With handle Fixed weight  Association relationship

1 and 2, the handle 10 and the fixing weight 20 are fixed to each other by screwing. This first embodiment has the advantage of easy to manufacture by forming the handle 10 and the fixed weight 20 separately when manufacturing the dumbbell, but when the user lifting the dumbbell, the fixed weight 20 to the handle 10 There is a problem that the screw may loosen little by little or cause noise or noise.

Referring to FIG. 5 showing a fourth embodiment of the present invention, the handle 10 is composed of a first handle 18 and a second handle 19 that can be coupled to each other in a straight line, each handle 18, 19) and the fixed weight 20 is configured to be fixed to each other. Instead, the threads 18a and 19a are provided at positions where the two handles 18 and 19 are coupled so that the two handles 18 and 19 can be screwed together to install the variable weight 30 having a disc shape.

In this fourth embodiment, since the handles 18 and 19 and the fixed weight 20 are formed to be fixed, there is no possibility that the fixed weight 20 is rotated or detached with respect to the handle 10 during the user's movement. Since the portion where the two handles 18 and 19 are coupled is a portion where the user grips while applying a constant force with his hand, there is little possibility that the threads 18a and 19a to which the two handles 18 and 19 are coupled are loosened. . Therefore, the fixing weight 20 which is a problem of the first and second embodiments can solve the problem of loosening the screw with respect to the handle 10.

[5th Example  - Variable weight  Configuration]

In the first, third and fourth embodiments, since the variable weight 30 is configured in the form of a disc, when the user installs or removes the variable weight 30 to adjust the weight of the dumbbell, i) the fixed weight 20 is handled. Separation from (10) (see FIGS. 1, 2 and 4), or ii) the two handles 18, 19 need to be separated from each other (see FIG. 5), which may be inconvenient for the user. have.

Referring to FIG. 6, the variable weight 34 may be provided in a shape in which the variable weight 30 having a disc shape is separated into two, that is, a semi-circular shape, not a disc shape. In this case, while the fixing weight 20 and the handle 10 are fixed to each other, the user can easily adjust the weight of the dumbbell by inserting the variable weight 34 having a semicircular shape into the groove 24.

In the fifth embodiment shown in FIG. 6, since the variable weight 34 is formed in the shape of a semi-circle, a method of forming a thread to fix the inside of the groove 24 is to hold and rotate the two variable weights 34 simultaneously. It is inconvenient because there is a need. Therefore, it is preferable to fix the variable weight 34 to the inside of the groove 24 by using the lock screw 16 described in the third embodiment (see FIG. 4), and to fix the variable weight 34 having a semicircular shape. For this purpose, at least two locking screws 16 are preferably formed at regular intervals.

In the fifth embodiment, the shape of the variable weight 34 is not limited to the original, and for example, the variable weight 30 (see FIG. 2) in the form of a disc may be variously modified, such as a form in which it is divided into three. In this case, however, the locking screw 16 also needs to be formed more than the number of the variable weights 34 to match the number of the variable weights 34.

Various embodiments of the adjustable dumbbell according to the present invention described so far may be implemented in combination with each other. For example, the second embodiment (see Fig. 3; the groove is formed on the outer surface of the fixed weight) and the third embodiment (see Fig. 4; a locking screw for fixing the variable weight inside the groove) can be implemented in combination In addition, it is also possible that the embodiments are implemented in combination with two or more of each other.

The present invention is not limited to the described embodiments, and various modifications and changes can be made to those skilled in the art without departing from the spirit and scope of the present invention. Such modifications or modifications may be made to the present invention. It belongs to the claims of the.

10: handle 12: thread
16: locking screw 18: first handle
19: 2nd handle 18a, 19a: thread
20: fixed weight 22, 26: thread
24: groove 30: variable weight
32: thread 34: semi-circular variable weight
36: through hole

Claims (10)

A handle having a predetermined length;
Fixed weights provided at both ends of the handle and having grooves of a predetermined depth; And
Variable weight that can be inserted into the groove of the fixed weight
Weight-adjustable dumbbells characterized in that it comprises a. The method of claim 1,
The groove of the fixed weight,
Weight controllable dumbbells, characterized in that formed on the inner surface of the fixed weight. The method of claim 1,
The groove of the fixed weight,
Weight controllable dumbbells, characterized in that formed on the outer surface of the fixed weight. The method according to claim 1 or 2,
Weight-adjustable dumbbells, characterized in that it further comprises a thread formed on each side of the handle and the fixing portion. 4. The method according to any one of claims 1 to 3,
Weight-adjustable dumbbells further comprises a thread formed on each of the outer circumferential surface of the variable weight and the inner circumferential surface of the groove. 4. The method according to any one of claims 1 to 3,
The hinge is coupled to one side of the handle or the fixed weight, the weight adjustable dumbbell, characterized in that it further comprises a locking screw for blocking a part of the groove inlet of the fixed weight. The method of claim 6,
The weight is the same as the variable weight, the weight is light, dumbbell weight adjustable, characterized in that it further comprises a dummy weight (Dummy weight) that can be inserted into the groove of the fixed weight. 4. The method according to any one of claims 1 to 3,
Weight controllable dumbbells, characterized in that provided with a plurality of through-holes penetrating the variable weight. 4. The method according to any one of claims 1 to 3,
The variable weight dumbbell is adjustable in weight, characterized in that the semi-circular plate shape. The method according to claim 1 or 2,
The handle includes a first handle and a second handle coupled to each other in a straight line,
Weight controllable dumbbells, characterized in that the first handle and the second handle is provided with a thread.

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