JP3033091U - Training donut barbell - Google Patents

Abstract

(57) [Abstract] [Problem] An instrument that enables everyone to perform safe and effective strength training. SOLUTION: A barbell 1 having an undivided closed donut-shaped outer shape is composed of a hard structure 3 having a hardness that is not deformed by an external force applied during use. This device facilitates overhead training, enables unprecedented exercise and increases safety during exercise.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an exercise equipment having a novel structure which has never existed before, and particularly to a barbell.

[0002]

[Prior art]

 Conventional general exercise equipment includes equipment called barbells and dumbbells. Although these differ in size, the basic shape is a structure in which a disc-shaped weight is attached to both ends of a linear bar. As another weight device, a weight device in which a C-shaped spring metal that can be attached to a limb is coated is also proposed.

[0003]

[Problems to be solved by the invention]

 However, the conventional exercise equipment has the following various problems. In the case of the conventional barbell, when the shoulder press (movement to raise the head) is performed because the bar is straight, the head of the human body is located on the motion trajectory of the bar, so It is necessary to move it back and forth so that it does not hit, and there is a problem that you can be forced into a cramped position.

Further, the weight is adjusted by the amount of iron weights attached to both ends of the bar, and the heavier the weight, the larger the weight. For this reason, in the case of a barbell with a long bar portion, the weight is unevenly distributed at both ends, and the weight balance becomes poor. As a result of exercise, centrifugal force acts on both ends, and there is a risk that a sudden overweight may adversely affect the body. On the other hand, in the case of a dumbbell, the right and left instruments are gripped and used, which makes it difficult to perform well-balanced strength exercises.

Further, in both conventional barbells and dumbbells in which weight adjustment is performed by attaching and detaching weights at both ends of the bar, there is a risk that the weight may come off the bar due to external impact. In addition, since there are many corners and protrusions in the structure, there is a risk of injury to the body and the floor when swinging around when dropped.

On the other hand, there is a proposal of a weight device made of a C-shaped spring metal to be attached to a limb, but there is a problem that the weight balance becomes uneven because the shape is C-shaped and has a divided portion.

Further, since the divided portion cannot be grasped, there is a limitation on free and safe exercise.

Further, in this structure, since the spring metal needs to be elastically deformed as a whole, the metal portion cannot be thickened to have a certain weight or more, and there is a limit to the free weight setting. In particular, it cannot be applied to relatively heavy exercise equipment such as barbells.

Furthermore, even if the weight can be increased, if the exercise equipment itself is elastically deformed, unexpected deformation during exercise may occur, which may be dangerous.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to provide a device that enables safe and effective muscle training for everyone. is there. The donut shape allows for unprecedented exercise and enhances exercise safety.

[0011]

[Means for Solving the Problems]

 In order to achieve the above object, the barbell according to the present invention has the following configuration. That is, the present invention comprises a hard structure having an undivided closed donut-shaped outer shape and hardness that is not deformed by an external force applied at the time of use, and substantially has a protrusion on the outer surface. It is a barbell characterized by not doing.

The donut-shaped peripheral shape may be any shape such as a perfect circle, an ellipse, or a polygonal shape with curved corners. In the case of a polygonal shape, a regular polygonal shape having an even number of angles is preferable.

As a preferred structure of the barbell of the present invention, the barbell is configured so that the weight of the barbell is located at the center of the donut-shaped circumference.

Further, the cross-sectional diameter of the hard structure may be “uniform” or “partially changed” in the donut-shaped circumferential direction according to a desired purpose.

The hard structure may be a “single molded body” of a hard material.

As the hard material here, iron, stainless steel, other metal materials, resin materials such as plastics, or ceramic materials such as alumina can be appropriately used.

The hard structure may be a "composite molded body" having a core portion and a shell portion, in addition to the single molded body described above. Iron, stainless steel, other metal materials, resin materials such as plastics, or ceramic materials such as alumina can be appropriately used for the core portion, while hard resin materials or the like can be used for the shell portion.

The volume ratio of the core portion and the shell portion in the above-mentioned composite molded body is appropriately determined depending on the selection of barbell weight and the strength. Usually, the core portion is 30% by volume to 90% by volume, and the shell portion is 70% by volume. To 10% by volume.

It is also possible to use the above-mentioned hard structure as a core material and further provide a soft cover layer thereon. As the soft cover layer, rubber, vinyl, or urethane resin material can be appropriately used.

In order to improve grip performance, the outer surface of the donut-shaped barbell can be corrugated.

In this case, only the soft cover layer may be corrugated, or the hard structure itself may be corrugated.

Although the desired size of the barbell can be selected depending on the body size and the weight of the barbell, the inner diameter of the inner peripheral portion of the donut shape can usually be set in the range of 30 cm to 120 cm.

As another additional configuration, a sheet attaching / detaching portion may be provided on a part of the outer surface of the barbell to attach an aromatic sheet or the like.

[0024]

[Embodiment of the invention]

 The barbell of the present invention will be described in detail below with reference to the drawings. "Outline" Fig. 1 shows an embodiment of the present invention. The barbell 1 of the present invention has a closed donut-shaped outer shape which is not divided, and is composed of a hard structure 3 having a strength that is not deformed by an external force applied at the time of use, and has a protrusion on the outer surface. It is characterized by not having.

The barbell of the present invention has an undivided closed donut-shaped outer shape, so that the weight balance can be made uniform, and the gripping portion has a high degree of freedom, which enables free and safe exercise.

Further, the present structure is made of a hard structure having sufficient strength and hardness so as not to be deformed by an external force applied during use (that is, a human force applied by an exerciser during exercise). Therefore, the hard structure 3 can be formed thick and can have a desired weight structurally. In addition, even if the weight can be increased, the exercise equipment itself does not elastically deform, so there is no risk of unintentional deformation during operation, which is safe.

Further, since the outer surface of the barbell has substantially no protrusion, the risk of collision with the body during exercise is small. Here, "substantially having no protrusion" means that there is no protrusion such as a rod-shaped body when viewed from the overall outer shape of a donut, and it is for a small grip provided on the outer surface of the barbell. Unevenness that does not impair the overall donut shape, such as surface treatment (bellows and warts), is not included in the “substantially protruding portion” here.

The shape of the donut-shaped circumference is preferably a “round circle” as shown in FIG. 1 in terms of weight balance, formability, etc. It can be any shape such as “ellipse” as shown in 2 or “polygonal shape with curved corners” as shown in FIG.

Although an example of a regular octagon is shown in FIG. 3, any polygon such as a triangle, a quadrangle, and a hexagon can be applied. However, in this case, it is preferable that the corners are sufficiently curved so that there is no danger during exercise. In addition, from the viewpoint of weight balance, it is preferable that it is a “regular polygon”, and from the viewpoint of ease of holding, it should have an even number of corners with symmetrical grip positions, or have a large number of corners. Shapes are generally preferred.

In the present invention, as shown in FIGS. 1 and 3, it is preferable that the barbell is placed so that its center point is located at the center of the donut-shaped circumference. It is possible to prevent the risk that the overload of the body may adversely affect the body, and to improve the stability during exercise.

Although an arbitrary shape can be applied to the cross-sectional shape of the hard structure 3, the shape such as “circular shape (FIG. 5)” or “corner surface curved triangular shape” can be applied from the viewpoint of gripping property. Is preferred.

The cross-sectional diameter of the hard structure 3 is preferably “uniform” in the donut-shaped circumferential direction from the viewpoint of weight uniformity and formability.

However, in order to increase the weight or to improve the grip during exercise, the cross-sectional diameter of the hard structure may be “partially changed” in the donut-shaped circumferential direction. .

When the weight is increased, a large diameter portion (large diameter portion 8) can be provided in the peripheral portion while keeping the emphasis at the center of the periphery as shown in FIG. 4, for example.

In order to improve the grip property, a shape (a wave forming shape shown in FIG. 9 described later) that matches the shape of the grip of the hand can be used.

“Hard Structure” As described above, the barbell 1 of the present invention is composed of the hard structure 3 having a non-deformable hardness against an external force applied during use (that is, a human force applied by a carrier during exercise). It is safe because the exercise equipment itself does not elastically deform even if the desired weight can be structurally given and the weight can be increased, so there is no risk of unintentional deformation during exercise. .

5 and 6 are cross-sectional views of a part of the donut-shaped barbell of the present invention, which is cut in a direction orthogonal to the circumferential direction.

As shown in FIG. 5, the hard structure 3 can be configured as a “single molded body” of a hard material. On the other hand, as shown in FIG. 6, the core portion 6 and the shell are It can also be configured as a “composite molded body” having the part 7.

As the hard material in the case of the “single molded body” of FIG. 5, iron, stainless steel, other metal materials, resin materials such as plastics, or ceramic materials such as alumina can be appropriately used. Known methods such as casting, powder metallurgy molding and cutting can be applied to the metal material, and known methods such as powder molding and sintering can be applied to the ceramic material, as the method for producing the single body.

In the case of the “composite molded body” of FIG. 6, the core portion 6 is made of a material having a relatively large specific gravity such as iron, stainless steel, other metallic materials, resin materials such as plastics, or ceramic materials such as alumina. On the other hand, a hard resin material or the like can be used for the shell portion 7.

Since the shell portion 7 is made of a resin material or the like, it is easy to add a color or a pattern, and a colorful and highly decorative barbell can be obtained.

The volume ratio of the core part to the shell part in the above-mentioned composite molded body is appropriately determined depending on the desired weight of the barbell, the strength of the shell part, and the like, but usually 30 to 90% by volume of the core part and 70% of the shell part. To 10% by volume. By adjusting this ratio, the weight can be changed without changing the size, and a barbell suitable for physical strength and exercise can be prepared.

As a method for producing the "composite molded article", a core portion is prepared by the same production method as that for the single molded article, and then a resin material can be formed by a known method such as injection molding or compression molding.

“Dimensions / Weight” The dimensions of the barbell are selected as desired depending on the body size and the weight of the barbell. The inner diameter of the inner periphery of the donut shape (Fig. 1 (4)) is usually in the range of 30 cm to 120 cm. By setting this size range, it becomes possible to pass the head and / or body of the exerciser through the space at the center of the donut-shaped bevel when performing exercise such as a shoulder press (book. One of the preferred uses of the invented barbell). A more preferred inner diameter range is from 30 cm to 70 cm.

The thickness of the donut-shaped barbell (outer diameter, FIG. 1 (10)) can be appropriately selected according to the size of the exerciser's hand, but is usually about 2 cm to 8 cm, preferably 2 cm to 6 cm. , And more preferably in the range of 3 cm to 4 cm.

The weight may be appropriately selected, but is usually in the range of 2 kg to 20 kg, and more preferably 3 kg to 10 kg. The weight can be adjusted by adjusting the thickness and diameter of the hard structure, or by changing the volume ratio (layer thickness) of the core 6 and the shell 7 in the composite molded body as described above. .

“Soft Cover Layer” FIGS. 7 and 8 are cross-sectional views (cross-sectional views in a direction orthogonal to the circumferential direction) of another embodiment of the present invention. Both figures show an example in which the hard structure 3 is used as a core material and a "soft cover layer 2" is further provided thereon. Fig. 7 shows the single molded hard structure 3 with the soft cover layer 2 provided thereon. Although provided, FIG. 8 shows that the soft cover layer 2 is provided on the composite molded hard structure having the core portion 6 and the shell portion 7. This makes it possible to alleviate a shock at the time of a collision with the body or the like, which is safer.

As the soft cover layer, rubber, vinyl, urethane type resin material or the like can be appropriately used. The thickness of this soft cover layer is usually provided in the range of 2 to 20 mm and adjusted by the thickness of the core portion.

Also, as with the shell portion 7, it is easy to add a color or pattern, so that a barbell that is colorful and highly decorative can be obtained.

“Grip Shape” FIG. 9 is a schematic view of an embodiment in which the outer surface of a donut-shaped barbell is “corrugated”. This makes it possible to reduce the gap between the finger and the barbell when gripped, improve the adhesion, and improve the grip property. The shape of the corrugation (Fig. 10) is appropriately selected according to the size of the exerciser's hand, but normally the pitch 11 is provided in the range of 10 to 20 mm, and the height 12 of the mountain is provided in the range of 5 to 10 mm. To be

In this case, in the case of having a soft cover layer, only the soft cover layer 2 may be corrugated, or the internal hard structure 3 itself may be corrugated. In FIG. 9, an example of the waveform is shown, but various other shapes that improve the grip property can be applied.

“Addition of Seat” FIG. 11 shows an example in which a seat attaching / detaching portion is provided on a part of the outer surface of the barbell of the present invention. An aromatic sheet or the like can be attached to the sheet attaching / detaching portion, for example. This is an example where an aroma effect can be obtained while exercising by setting a fragrance on the inner part of the barbell that passes in front of the face during shoulder press (exercise to raise the head).

[0053]

[Effect of the invention]

 The barbell of the present invention has the following effects. Since the barbell of the present invention has an undivided closed donut-shaped outer shape, weight balance can be made uniform, and the gripping portion has a high degree of freedom, which enables free and safe exercise. In particular, pullovers (exercises above the head) can be performed in a comfortable position, and muscle strength exercises that have never been possible.

Further, since the present structure is made of a hard structure having strength and hardness that is not deformed by an external force applied during use (that is, a human force applied by an exerciser during exercise), the structure should have a desired weight. Even if the weight can be increased and the weight can be increased, the exercise equipment itself does not elastically deform, so there is no risk of unexpected deformation during exercise, and it is safe.

Since the outer surface of the barbell has substantially no protrusion, there is no danger of collision with the body during exercise.

In the present invention, the barbell is configured so that its center point is located at the center of the donut-shaped circumference, so that the weight is evenly distributed over the entire body, and the danger of unexpected overload on the body is adversely affected. It can be prevented and stability during exercise can be improved.

When the hard structure is integrally formed, the barbell itself is less likely to be broken, and the strength and safety against impact are high. Further, when changing the weight, the weight can be changed by changing the thickness of the core portion and the material configuration, so that the weight is not concentrated on a specific portion.

When the hard structure has a composite structure composed of a core part and a shell part, by adjusting this ratio, the weight can be changed without changing the dimension, and a barbell suitable for physical strength and exercise can be provided. Can be prepared.

Regarding the inner diameter size and weight, considering the individual differences in body shape and muscle strength, by selecting a donut-shaped barbell suitable for each body shape, muscle strength or purpose, anyone can perform optimal exercise. it can. In particular, by setting the inner diameter of the inner periphery of the donut shape to be in the range of 30 cm to 120 cm, a preferable use example of the barbell of the present invention is to use the head of the exerciser and the head of the exerciser when carrying out movement such as a shoulder press. Alternatively, the body can be allowed to move through the space in the center of the donut-shaped bevel, which enables safe and proper movement without having to take a forcible posture.

In the example in which the hard cover is provided with the soft cover layer, the anti-slip effect at the time of gripping is obtained, and the impact at the time of dropping is mitigated, which is safer.

In the example in which the outer surface of the donut-shaped barbell is corrugated, the grip performance during exercise can be improved.

When the shell portion and the soft cover layer are provided with a resin material or the like, it is easy to add a color or pattern, and a colorful and highly decorative barbell can be obtained.

Aroma effect can be obtained while exercising by setting the fragrance to the inner part of the main body that passes in front of the face during shoulder press (exercise to raise the head).

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing an embodiment of the present invention.

FIG. 2 is a front view showing another embodiment of the present invention.

FIG. 3 is a front view showing another embodiment of the present invention.

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

FIG. 5 is a sectional view showing an embodiment of the present invention.

FIG. 6 is a sectional view showing another embodiment of the present invention.

FIG. 7 is a sectional view showing another embodiment of the present invention.

FIG. 8 is a sectional view showing another embodiment of the present invention.

FIG. 9 is a schematic front view showing another embodiment of the present invention.

FIG. 10 is a partially enlarged view of FIG.

FIG. 11 is a schematic view of the present invention having a seat attaching / detaching part.

[Explanation of symbols]

 1 = barbell 2 = soft cover layer 3 = hard structure 4 = inner circumference 5 = single molded body 6 = core part 7 = shell part 8 = large diameter part 9 = thickness diameter 10 = pitch 11 = mountain depth 12 = Aromatic sheet

Claims (22)

[Utility model registration claims] 1. A hard structure having an undivided closed doughnut-shaped outer shape and having strength not to be deformed by an external force applied during use, and having substantially no protrusion on the outer surface. A barbell characterized by 2. The barbell according to claim 1, wherein the shape of the donut-shaped circumference is a perfect circle. 3. The barbell according to claim 1, wherein the shape of the donut-shaped circumference is an ellipse. 4. The barbell according to claim 1, wherein the shape of the donut-shaped periphery is a polygonal shape whose corners are curved. 5. The barbell according to claim 4, wherein the polygonal shape is a regular polygonal shape and has an even number of angles. 6. The barbell according to any one of claims 1 to 5, wherein the weight of the barbell is located at the center of the donut-shaped circumference. 7. The barbell according to claim 1, wherein a cross-sectional diameter of the hard structure is uniform in a donut-shaped circumferential direction. 8. The barbell according to claim 1, wherein the cross-sectional diameter of the hard structure partially changes in a donut-shaped circumferential direction. 9. The barbell according to claim 1, wherein the rigid structure is made of a single molded body of rigid material. 10. The barbell according to claim 9, wherein the hard material is any one of iron, stainless steel, other metal materials, resin materials such as plastics, and ceramic materials. 11. The barbell according to claim 1, wherein the hard structure is a composite molded body having a core portion and a shell portion. 12. The barbell according to claim 11, wherein the core portion is made of iron, stainless steel, another metal material, a resin material such as plastic, or a ceramic material. 13. The barbell according to claim 11, wherein the shell portion is made of a hard resin material. 14. The volume ratio of the core portion to the shell portion in the composite molded body is in the range of 30 volume% to 90 volume% for the core portion and 70 volume% to 10 volume% for the shell portion. Barbell according to any of 13 15. The barbell according to claim 1, further comprising a soft cover layer provided on the hard structure. 16. The soft cover layer is made of a rubber, vinyl or urethane resin material.
Barbell described in 5 17. The barbell according to claim 1, wherein the outer surface of the barbell is corrugated. 18. The barbell of claim 17, wherein the rigid structure is corrugated. 19. The inner diameter of the donut-shaped inner peripheral portion is 3
The barbell according to any one of claims 1 to 18, which has a range of 0 cm to 120 cm. 20. The donut-shaped inner peripheral portion has an inner diameter of 3
The barbell according to any one of claims 1 to 18, which has a range of 0 cm to 70 cm. 21. The barbell according to claim 1, wherein a seat attaching / detaching portion is provided on a part of the outer surface. 22. The barbell according to claim 21, wherein an aromatic sheet is attached to the sheet attaching / detaching portion.