JPH0568558U - dumbbell - Google Patents

Abstract

(57) [Abstract] [Purpose] The use of soft material in the main part makes handling of dumbbells safer and at the same time widens the range of applications. [Structure] A main body 11 made of a soft material such as rubber or sponge and having a thickness that can be held in the palm of the hand between the thumb and the four fingers, and the main body 11 which penetrates the main body in the thickness direction. And the metal body 15 joined together, the four fingers are alternately formed on the inner peripheral surface of the main body portion 11 and the concave portions of the concave portion 13 are individually intervened and gripped between the thumbs. In addition, both end surfaces of the metal body protruding outside the main body portion are formed in an arc shape.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dumbbell that is used for strength training, such as clasping and fitting on a wrist.

[0002]

[Prior Art]

 Dumbbells are usually aimed at strengthening the muscular strength of the arm.Therefore, basically, a rod body that is easy to grip is formed with a weight body that is larger than the diameter of the rod body in one body. And this dumbbell is made entirely of metal. However, the shape is such that, for example, as in Design Registration No. 805117, the shape of the weight body of the rod and the end is devised, or as having a special shape, Design Registration No. 701317 and No. No. 770739 and other dumbbells according to Design Registration No. 701338 having a ring-shaped body are known.

[0003]

[Problems to be solved by the device]

 However, the conventional dumbbells, including general ones, are formed of a metal such as iron or lead as a property in use, and a coating film is applied to the outer surface thereof by a means such as painting. Therefore, even if the shape itself is variously changed, the whole structure is made of metal. Therefore, it is necessary to handle it carefully so that it will not drop during use, and since the grip of the dumbbell is also made of metal, it is difficult to fit the palm or fingers of the hand, and it is rugged, cold and hard for the user. It gives a feel and has limited uses.

The present invention addresses the drawbacks of the conventional dumbbells, expands the range of applications, and provides the dumbbells with a soft body such as a rubber-like main body part that comes into contact with the skin such as the palm of the hand while giving an appropriate weight. The purpose is to improve the safety during handling by forming the material.

[0005]

[Means for Solving the Problems]

 That is, a device according to claim 1 of the present invention (hereinafter, referred to as a first device) is a main body part formed by a soft material such as rubber or sponge to have a thickness that can be sandwiched between a thumb and four fingers. , Consisting of several metal bodies penetrating into the main body in the thickness direction and integrally connected, and the main body comes into contact with the palm of the hand when sandwiched between the thumb and the other four fingers. The outer surface of the gutter is formed as a smooth surface in the length direction orthogonal to the thickness, and at the same time the inner surface of the gutter corresponding to the four fingers of the main body has at least three protrusions and four fingers. Recesses that can be individually intervened are alternately provided in the length direction, and the metal body is characterized in that both end surfaces exposed to the outside in the thickness direction of the main body are formed in an arc shape. .

Further, the device according to claim 2 of the present invention (hereinafter referred to as the second device) is formed by a soft material such as rubber or sponge to a thickness that can be held between the thumb and the other four fingers. A main body and several metal bodies that are integrally connected to the main body by penetrating in the thickness direction. The main body has a hole in the center, and a thumb and four other fingers. The outer surface of the pad which is in contact with the palm of the hand when sandwiched between them is formed as a circular surface, and the holes corresponding to the four fingers of the main body are formed at equal intervals in the circumferential direction on the pad. A plurality of facing projections and recesses in which four fingers can be individually intervened are alternately provided in the circumferential direction, and the holes are such that the tips of the projections abut around the wrist inserted into the holes. And the metal body is exposed to the outside in the thickness direction of the main body. It is characterized in that the surface is formed in an arc shape.

[0007]

[Action]

 According to the first aspect of the invention described above, with the outer surface of the main body part resting against the palm of the hand, the main body part is sandwiched between the thumb and the other four fingers so that the four fingers The inner surface of the main body is individually intervened in the concave portion provided between the protrusions of the main body and grasped on the palm surface of the hand, and by raising and lowering the dumbbell in this state, the muscular strength of the entire arm is exercised. Further, as the dumbbell is clenched as described above, the strength of the fingers for increasing or decreasing the gripping force between the thumb and the four fingers can be reversed to perform the grip strength training. is there.

Further, according to the second aspect of the invention, as in the first aspect of the invention, the four fingers in which the palm of the hand is placed on an arbitrary outer surface of the main body and individually intervened in the recesses between the protrusions. With the thumb on the other side, the dumbbell can be moved up and down while holding the main body to exercise muscle strength, or in the state described above, the grip strength can be exercised by adjusting the holding power of each finger. is there. Further, according to the second aspect, when the wrist is inserted into the hole of the main body, the protrusions projecting toward the center of the hole elastically retract and the elastic restoring force of the protrusion causes the protrusion of the protrusion to move. The dumbbell is held on the wrist by closely contacting the tip around the wrist, and in this state, the arm can be moved up and down to exercise the muscle strength of the wrist.

[0009]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. In FIGS. 1 to 3, reference numeral 1 denotes a main part of the dumbbell A which is made of a soft material having an elastic restoring force such as rubber or sponge and has a thickness of about 2 cm and which is formed to have a palm size. The main body portion is in contact with the palm surface of the hand between the thumb and the other four fingers, but the outer surface (a) of the waving is formed as a smooth surface 2 in the length direction orthogonal to the thickness, and Correspondingly, on the inner surface (b) of the opposite arm, concave portions 3 for interposing these four fingers respectively and three protruding portions 4 for individually partitioning the concave portions are alternately formed in the lengthwise direction in the corrugated shape. It is formed in. Reference numeral 5 denotes a metal body which is penetrated through the main body portion 1 in the thickness direction and integrally coupled with the main body portion. Both end surfaces 5 ′ of the metal body, which are exposed to the outside of the main body portion 1 and have a large diameter, 5'is formed in an arc shape similar to a spherical surface.

In the dumbbell A having the above structure, with the outer surface (a) sandwiched between the thumb and the other four fingers, the outer surface is applied to the palm surface of the hand to project each of the four fingers. When the dumbbells are gripped by moving the dumbbells up and down by individually intervening in the respective recesses 3 partitioned by the parts 4, it is possible to perform an exercise by bending and stretching the arm, and further reinforce the gripping force of the fingers in the above-mentioned state to make it stronger or weaker. That is how you can practice your grip strength.

Next, referring to FIGS. 4 to 6, the dumbbell B has a main body portion 11 formed of a soft material and having a required thickness and size, and both end surfaces 15 ′ exposed to the outside of the main body portion in an arc shape. The formed metal portion 15 is the same as the main body portion 1 and the metal portion 5 in FIGS. 1 to 3, and the dumbbell B has a hole portion 16 formed at the center of the main body portion 11 and four fingers are individually formed. A plurality of recesses 13 for intervening and projections 14 for individually partitioning these recesses are provided alternately in the inner circumference of the hole 16 at equal intervals in the circumferential direction. When the wrist is inserted into the inside, the rounded tips 14 'of the protrusions 14 that face the respective centers are formed to have a length that presses against the surface of the wrist from the surroundings.

In the case of the dumbbell B having the above configuration, the outer surface (a ′) of the main body 11 is applied to the palm surface of the hand between the thumb and the four fingers, and the four fingers are individually inserted into the recess 13. In this state, the dumbbell B is moved up and down by grasping with the fingers and thumb, or by reversing the gripping force of each of the fingers to strengthen and weaken, the arms and fingers can be trained. By raising and lowering the dumbbell B with the wrist inserted in the hole 16, the wrist muscles can be mainly trained.

[0013]

[Effect of the device]

 As is clear from the above description, according to the first aspect of the present invention, due to the presence of the metal body, the dumbbell can be formed to have an appropriate weight, and at the same time, a part of the palm of the hand and the fingers can be contacted. Since the main part of the dumbbell is made of a soft material, it can be used relatively safely, and besides, it can be used not only for muscular strength training of the arm but also for finger grip training.

Further, according to the second aspect, in addition to the effect of the first aspect, when the wrist is inserted into the hole provided between the tips of the protrusions of the main body, the entire dumbbell is kept on the wrist. Since it can be held, by raising and lowering the dumbbell in this state, it can be used for strength training of the wrist or flexion and extension of the arm, and the range of use of the dumbbell can be expanded.

[Brief description of drawings]

FIG. 1 is a front view of a dumbbell.

FIG. 2 is an upper side view.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a front view of the dumbbell.

5 is a sectional view taken along line IV-IV of FIG.

[Explanation of symbols]

 1, 11 Main part 2, 12 Curved surface 3, 13 Recessed part 4, 14 Projection part 14 'Tip of projection part 5, 15 Metal part 5', 15 'Both end surfaces 16 Hole part

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[Procedure amendment]

[Submission date] February 19, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief explanation of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a dumbbell.

[Figure 2]仝Ue flat view.

FIG. 3 is a transverse line passing through each center of the three circular portions in FIG.
Cross-sectional view of.

FIG. 4 is a front view showing another embodiment of the dumbbell.

5 is a plan view of FIG .

6 is a sectional view taken along the line III-III in FIG.

[Explanation of reference numerals] 1,11 Main body portion 2,12 Curved surface 3,13 Recessed portion 4,14 Projection portion 14 'Tip of projection portion 5,15 Metal portion 5', 15 'Both end surfaces 16 Hole portion

Claims (2)

[Scope of utility model registration request] 1. A main body formed with a soft material such as rubber or sponge to a thickness that can be sandwiched between a thumb and other four fingers, and a main body formed integrally with the main body by penetrating in the thickness direction. The main body is a smooth surface in the length direction orthogonal to the thickness, which contacts the palm of the hand when sandwiched between the thumb and the other four fingers. And at least three protrusions and recesses into which the four fingers can individually intervene are alternately provided on the inner surface of the gutter corresponding to the four fingers of the main body, Further, the metal body is formed by forming both end faces exposed to the outside in the thickness direction of the main body into an arc shape. 2. A main body formed by a soft material such as rubber or sponge to have a thickness that can be sandwiched between a thumb and four other fingers, and a main body formed integrally with the main body by penetrating in the thickness direction. The main body has a hole in the center and is in contact with the palm of the hand when sandwiched between the thumb and the other four fingers. At the same time, the holes corresponding to the four fingers of the main body portion are arranged in the circumferential direction alternately with a large number of protrusions facing the center at equal intervals in the circumferential direction and concave portions into which the four fingers can individually intervene. In the
Moreover, the hole is formed to have a size such that the tip of the protrusion can abut around the wrist inserted into the hole, and the metal body has both end surfaces exposed to the outside in the thickness direction of the main body. A dumbbell characterized by being formed in an arc shape.