Punching bag

Abstract

This application describes a punching bag (1) made of multiple materials and a multilayer structure, which provides a combination of materials that enables achieving consistency similar to that of the human body and creates a highly realistic training experience. The punching bag includes a body having an outer synthetic leather surface (1.1), the body being formed by a core portion consisting of a two-layer foam structure (1.2, 1, 3) having different densities and a bladder structure (1.4) consisting of at least one bladder.

Description

Technical Field

[0001] This application relates to punching bags, and more particularly to punching bags having a multi-layer and multi-material structure.

Background Art

[0002] Punching bags were originally used by boxers or martial artists to improve overall punching techniques. In recent years, punching bags are used by people who are not martial artists but who desire to enjoy the physical strength and aerobic exercise effects achieved by performing punching motions. Further, since martial arts training programs have proven to be an effective way to improve health and fitness, punching bags are currently used as a stress reliever by many people. Many people have obtained good results from martial arts training, such as improved cardiorespiratory endurance, increased muscle strength and tone, and weight loss. It also helps the user gain a sense of inner strength and emotional balance.

[0003] Conventional punching bags are available in a plurality of sizes and shapes, all typically constituting a ball, pear, or elongated cylindrical structure, formed with an outer skin such as leather on a synthetic composite composition, and the filling material within the outer skin is an air bag or other filling material, such as kapok or other synthetic fiber material.

[0004] Typically, punching bags used for both boxing and kickboxing exercises are elongated cylindrical in shape, providing a larger surface area and weighing over 30 kg, with a density exceeding 10 pounds per cubic foot, thereby giving the bag substantial rigidity. One of the main reasons for such desired weight and rigidity in a typical punching bag is to provide the desired degree of resistance when the bag is struck by kicks and punches, and to simulate human contact in combat training. The weight of the punching bag also affects the training effect: if the bag is too heavy, it cannot be easily moved, and conversely, if the bag is too light, the training effect will be reduced.

[0005] To enhance the overall training experience, the bags are designed to have a specific weight and filled with shape-memory or compressible material, which can also reduce or adjust impact resistance to a degree intended to avoid or at least reduce damage. [Overview of the Initiative] [Problems that the invention aims to solve]

[0006] However, the problem with such punching bags is that, due to their internal structure, it is difficult to maintain consistency in shape and resistance during use, especially over long periods of use, or more specifically, it is difficult to maintain consistency in the arrangement or displacement of the bag's filling material. In fact, after repeated strong contact with the training bag, usually over a large portion of its outer surface area, the filling material can displace or shift from its original, generally homogeneous arrangement, resulting in a heavy or kicking bag with non-uniform resistance across its surface contact area.

[0007] Furthermore, considering that punching bags are typically suspended from a support, gravity also contributes to the gradual movement and shifting of the filling material from top to bottom of the bag, especially when struck by repetitive punches and kicks. This results in a non-uniform distribution of the filling material, leading to a non-uniform and inconsistent resistance to contact, resulting in a workout or training session that is not as desired.

[0008] This application aims to innovatively overcome these problems. [Means for solving the problem]

[0009] This application was made to provide a punching bag that mitigates the aforementioned drawbacks of prior art devices and is therefore capable of maintaining consistency in its resistance and rebound through heavy and intense use.

[0010] Therefore, the object of this application is a punching bag made of multiple materials and a multilayer structure. Thus, such a punching bag provides a combination of materials that enables achieving consistency similar to that of the human body, creating a very realistic training experience. Furthermore, in order to achieve the required weight of the bag, the body of the bag is equipped with a bladder structure, and at least one bladder is filled with liquid.

[0011] In one advantageous configuration, the bladder structure features an array of four 20-liter water bladders. Dividing the bladder into 20-liter sections makes it easier for the user to carry each bladder individually and place them in the bag, for example, using the ergonomic carry handle on top of the bladder, thus improving usability. [Brief explanation of the drawing]

[0012] [Figure 1]This is an overall cross-sectional view of one embodiment of the punching bag that is the subject of this application, and the following reference numerals represent: 1 - punching bag; 1.1 - outer synthetic leather surface; 1.2 - first foam layer; 1.3 - second foam layer; 1.4 - bladder structure. [Figure 2] This is a longitudinal cross-sectional view of one embodiment of the punching bag (1) that is the subject of this application, and the reference numerals are as follows: 1.1 - outer synthetic leather surface; 1.2 - first foam layer; 1.3 - second foam layer; 1.4 - bladder structure; 1.5 - bladder. [Figure 3] This is a diagram of one embodiment of a bladder structure that forms the core portion of a punching bag, with the following reference numerals: 1.5-bladder; 1.6-valve set. [Figure 4] This figure shows one embodiment of a punching bag mounted on two surfaces perpendicular to each other, with reference numerals below representing: 1 - punching bag; 2 - fixing module; 3 - first support surface; 4 - second support surface. [Modes for carrying out the invention]

[0013] More general and advantageous configurations of the present invention are described in the summary of the invention. Such configurations are described below in accordance with other advantageous and / or preferred embodiments of the implementation of the present invention.

[0014] In a preferred embodiment of the punching bag (1) of this application, the bag comprises a body having an outer synthetic leather surface (1.1) and formed by at least two inner foam layers. Towards the interior of the bag body, a first foam layer (1.2) is formed adjacent to the synthetic leather surface (1.1), and a second foam layer (1.3) is formed adjacent to the first foam layer (1.2); the first and second foam layers (1.2, 1.3) have different densities.

[0015] The core portion consists of a bladder structure (1.4) comprising at least one bladder, which is adapted to house at least a liquid storage section.

[0016] The punching bag (1) according to this preferred embodiment is formed from a combination of materials that allows for consistency similar to that of the human body, creating a highly realistic training experience. Furthermore, the two-layer structure of the foam (1.2, 1.3) has a cylindrical shape and forms a homogeneous layer that is distributed along the entire surface of the bag (1) rather than locally on specific parts of the body, and can maintain its arrangement, thus providing homogeneous resistance across the surface contact area of ​​the bag.

[0017] In another embodiment, which can be combined with the preferred embodiment, the outer surface (1.1) of the punching bag (1) is a synthetic leather surface. This type of material is environmentally friendly and very durable. More specifically, the synthetic leather surface (1.1) may be made from a combination of a natural fiber matrix and at least 50% recycled PU polymer.

[0018] In another embodiment, which can be combined with any of the embodiments described above, the first foam layer (1.2) is a medium-density foam. More specifically, the first foam layer (1.2) may have a thickness of 50 to 70 mm.

[0019] In another embodiment, which can be combined with any of the embodiments described above, the second foam layer (1.3) comprises a high-density expanded polyethylene (EPE) foam. The second foam layer (1.3) may have a thickness of 30 to 50 mm.

[0020] The proposed multilayer structure has two types of foam with different densities and thicknesses, which allows for protection of the bladder structure (1.4) and, as a result, provides greater stability to the punching bag (1) in response to user impacts.

[0021] In another embodiment that can be combined with any of the foregoing embodiments, at least one bladder (1.5) of the bladder structure (1.4) is a container for storing a liquid such as water. The punching bag (1) has a water-like core, thereby obtaining a texture and resistance similar to that of the human body. Furthermore, the water-like core also has the advantage of making the deformation of the bag and the reaction to the user's strikes more realistic.

[0022] In another embodiment that can be combined with any of the foregoing embodiments, the bladder (1.5) is a membrane made of a PVC polymer, installed at one end of the container, and provided with at least one valve set (1.6) connected to the inside of the container. The valve set (1.6) may include an inlet and a heat-sealed section to achieve a liquid-tight seal. Each bladder (1.5) may have a flat 65mm valve so that it can be filled or emptied. The valve (1.6) may also be foldable and may be able to perform a dual function: bidirectional for water filling and unidirectional for low-pressure pressurization.

[0023] In another embodiment that can be combined with any of the foregoing embodiments, each bladder (1.5) has a volume of 20 liters. By dividing the bladder (1.5) into 20-liter sections, it becomes easier for the user to fill each bladder (1.5), carry them individually using an ergonomic carry handle that can be installed on top of the bladder (1.5), and place them inside the bag, improving usability.

[0024] In another embodiment that can be combined with any of the foregoing embodiments, the body of the punching bag (1) has an elongated shape, and the bladder structure (1.4) of the core part includes an array of at least two bladders (1.5) arranged vertically along one longitudinal axis. For this purpose, the bladders (1.5) of the array have shapes adapted to be stacked on top of each other. More specifically, each bladder (1.5) has a cylindrical shape consisting of upper and lower parallel circular bases joined by a curved surface, and the upper circular base of the first bladder is adapted to receive the bottom circular base, the second bladder, etc., forming a vertical pile of bladders (1.5). By having cylindrical bladders (1.5), the required number of bladders (1.5) can be stacked vertically, ensuring an appropriate balance and thus the stability of the bag (1). For this purpose, each bladder (1.5) may also be provided with connecting components such as connecting rings to improve the better connection to adjacent bladders.

[0025] In another embodiment that can be combined with any of the foregoing embodiments, the bladder structure (1.4) comprises an array of four bladders (1.5).

[0026] In another embodiment that can be combined with any of the foregoing embodiments, the bag (1) further comprises at least one sensor module adapted to specify the impact force of the user's strike. The at least one sensor module is constituted by at least one set of accelerometers embedded in the first foam layer (1.2). By the specific arrangement of the sensors in this first foam layer (1.2), on the one hand, an accurate positioning within the multi-layer structure of the bag (1) for measuring the impact force is ensured, and on the other hand, sufficient mechanical protection of the sensors against impacts is also ensured.

[0027] In another embodiment, which can be combined with any of the embodiments described above, the bag (1) further comprises a fixing module (2). The fixing module (2) comprises fixing means adapted to fix the body of the bag to a first surface (3). More specifically, in another embodiment, the fixing module (2) further comprises fixing means adapted to fix the bag (1) to a second surface (4), the first surface (3) and the second surface (4) being perpendicular to each other. Using these two fixing points, the multilayer structure of the punching bag makes it possible to more realistically reproduce the deformation and response of the bag to user blows, thereby improving the user experience during training sessions. [Examples]

[0028] The punching bag (1) includes a body made of light gray synthetic leather and has two different foam layers (1.2, 1.3) and an array of four water bladders (1.5) in the core. This combination of materials achieves consistency similar to that of the human body, making it possible to create a very realistic training experience. The environmentally friendly material chosen for the exterior of the bag is a combination of a natural fiber matrix that provides strength and support as a backing to over 50% recycled PU polymer, which gives the bag's exterior texture and is environmentally friendly and highly durable.

[0029] The punching bag's interior consists of two types of foam: a first foam layer (1.2) immediately below the outer shell (1.1) is medium-density and 50-70 mm thick; a second layer adjacent to the first foam layer is a rigid foam made from expanded polyethylene (EPE). Three accelerometers are housed between the foam layers (1.2, 1.3) to determine the impact force for each blow performed by the user.

[0030] To achieve the required weight of the bag body of approximately 90 kg, so that the bag can absorb even the strongest user impacts, the bladder structure (1.4) features an array of four 20-liter water bladders (1.5). By dividing the bladder (1.5) of the bladder structure (1.4) into 20-liter sections, it becomes easy for the user to fill each bladder (1.5) individually, carry them individually using the ergonomic carry handle on top of the bladder (1.5), and place them inside the bag (1). All water bladders (1.5) have a cylindrical shape, are made from at least 0.8 mm thick PVC polymer, and are heat-sealed to achieve a watertight seal. Each bladder (1.5) has a flat 65 mm valve so that it can be filled or emptied.

Claims

1. A punching bag (1) comprising a body having an outer leather surface (1.1), wherein the body is At least two inner layers of foam; core part Formed by, Towards the interior of the bag body, the first foam layer (1.2) is formed adjacent to the leather surface (1.1), and the second foam layer (1.3) is formed adjacent to the first foam layer (1.2), and the first and second foam layers (1.2, 1.3) have different densities. The core portion is comprised of a bladder structure (1.5) consisting of at least one bladder (1.6), the bladder (1.6) being a container for liquid storage. A bag (1) characterized by the following features.

2. The bag (1) according to claim 1, characterized in that the outer surface (1.1) is a synthetic leather surface.

3. The bag (1) according to claim 2, characterized in that the synthetic leather surface is made from a combination of a natural fiber matrix and at least 50% recycled PU polymer.

4. The bag (1) according to any one of claims 1 to 3, characterized in that the first foam layer (1.2) is a medium-density foam.

5. The bag (1) according to claim 4, characterized in that the thickness of the first foam layer (1.2) is 50 to 70 mm.

6. The bag (1) according to any one of claims 1 to 5, characterized in that the second foam layer (1.3) comprises a high-density expanded polyethylene (EPE) foam.

7. The bag (1) according to any one of claims 1 to 6, characterized in that at least one bladder (1.5) of the bladder structure (1.4) is a container for liquid storage.

8. The bag (1) according to claim 7, characterized in that the liquid is water.

9. The bag (1) according to claim 7 or 8, wherein the bag (1.5) is a membrane made of PVC polymer and includes at least one valve set (1.6) installed at one end of the container and connected to the inside of the container, the valve set (1.6) includes an inlet and a heat-sealed section.

10. The bag (1) according to any one of claims 7 to 9, characterized in that the volume of the bladder (1.5) is 20 liters.

11. The bag (1) according to any one of claims 1 to 10, wherein the body of the bag has an elongated shape, and the bladder structure (1.4) of the core portion includes an array of at least two bladders (1.5) arranged longitudinally along one longitudinal axis, and the bladders (1.5) of the array have shapes adapted to be stacked on top of each other.

12. The bag (1) according to claim 11, wherein the bladder (1.5) has a cylindrical shape consisting of an upper and a bottom parallel circular base joined by a curved surface, and the upper circular base of the first bladder is adapted to receive the bottom circular base, the second bladder.

13. The bag (1) according to claim 11 or 12, wherein the bladder structure (1.4) comprises an array of four bladders (1.5), and preferably each bag has an ergonomic carry handle and a connecting component, preferably the connecting component being a connecting ring.

14. The bag (1) according to any one of claims 1 to 13, further comprising at least one sensor module, the at least one sensor module being installed between the foam layers (1.2, 1.3).

15. The bag (1) according to any one of claims 1 to 14, further comprising a fixing module (2), the fixing module comprising fixing means adapted for fixing the body of the bag to a first surface (3), and optionally, the fixing module (2) further comprising fixing means adapted for fixing the bag to a second surface (4), wherein the first and second surfaces (3, 4) are perpendicular to each other.

Images