KR200419835Y1 - Pneumatic health apparatus capable of two-way pushing - Google Patents

Abstract

The present invention relates to a manual pneumatic fitness device that provides a compressed air pressure to the double-acting cylinder to be a strength exercise when the lever is pulled, pushed, or pushed the lever according to the user's manual switch operation, A double acting cylinder having a piston rod connected to a lever of the fitness machine; First and second compressed air tanks directly connected to orifices of the left and right chambers of the double-acting cylinder; An air compressor for generating compressed air; And between the first compressed air tank, the second compressed air tank, and the air compressor, wherein the compressed air generated by the air compressor according to a user's manual operation is one of the first compressed air tank or the second compressed air tank. Or compressed air flow path switching means for forming an air flow path to supply to all, it characterized in that it comprises a, according to the present invention, according to the user's choice to perform the bi-directional strength exercise and one-way strength exercise very effectively There is an effect that can be low, maintenance costs such as power consumption, there is no fear of malfunction or misoperation, there is an effect that can provide a low-cost manual pneumatic fitness equipment.

Manual, pneumatic, fitness equipment

Description

PNEUMATIC HEALTH APPARATUS CAPABLE OF TWO-WAY PUSHING}

Figure 1a and 1b is a state diagram showing the change of state when pushing and pulling the lever of the manual pneumatic fitness device according to the present invention.

2 is a pneumatic circuit diagram of a manual pneumatic fitness device according to the present invention.

3 is a pneumatic flow chart during bidirectional movement.

4A and 4B are pneumatic flow charts during unidirectional movement.

                Explanation of symbols on the main parts of the drawings

1: fitness equipment 2: lever handle

3: lever 4: piston rod

5: double acting cylinder 6, 8, 9: hinge

7: frame 10: bench

11: pneumatic control box 12a, 12b: compressed air tank

13a, 13b, 13c: shuttle valve 14: pressure gauge

15: second direction control valve 16: first direction control valve

17: second opening and closing valve 18: first opening and closing valve

19: air compressor

The present invention relates to a fitness device that effectively improves muscle strength, and more particularly, provides compressed air pressure to a double-acting cylinder to pull the lever, push the lever, or push the lever according to the user's manual switch operation. The present invention relates to a passive pneumatic fitness device that allows for strength training.

In general, strength-enhancing fitness equipment, such as barbells or dumbbells installed in the gym is to exercise in the direction to overcome the action of gravity while pushing or pulling the lever connected to the metal weight having a predetermined unit weight.

Such a metal weight-type fitness equipment has the disadvantage that there is no muscle movement effect in only one direction in one apparatus, and there is a problem that the risk of injury always exists if the person cannot afford to bear excessive weight.

Accordingly, in recent years, there has been provided a fitness device made to exercise by using hydraulic pressure or pneumatic pressure rather than metal weight.

Mechanical manual fitness equipment using hydraulic pressure has no power source, so it is impossible to adjust the strength of the hydraulic pressure desired.It only changes the size of the orifice of the hydraulic cylinder, so that the user can move in both directions while changing the applied force and speed when pushing and pulling the lever. It is supposed to be. In other words, the manual fitness equipment using the hydraulic pressure is operated by a cylinder filled with fluid there is no transmission of power from the outside. This hydraulic mechanism has the advantage that when the lever is pushed and pulled, the fluid inside the cylinder passes through the orifice along the circulation pipe and is simple and easy to move.However, the control of the strength of the movement is not limited to the size of the orifice. Since the intensity of the exercise cannot be precisely controlled because it is provided by the user's exercise speed, there is a disadvantage that it is not suitable as a precise exercise device such as an exercise therapy device for a rehabilitation patient.

Mechanical manual fitness equipment using the pneumatic force is to exercise the strength by overcoming the pneumatic pressure provided in one direction from the air compressor when the lever is pushed or pulled, it can be adjusted by adjusting the intensity of the pneumatic strength.

Conventional mechanical manual fitness equipment that uses pneumatic pressure is divided into two chambers by a piston inside the piston, and the piston is connected to a cylinder connected to the hand lever or put lever of the fitness equipment and once in two chambers defined by the piston of the cylinder. It includes a circulation pipe passage connected to the addition, the directional valve is provided on the circulation pipe connected to one side of the pressure tank, a pressure control valve connected to the other side of the pressure tank, and a pressure gauge connected to the pressure control valve. The pressure regulating valve may include a first opening and closing valve and a second opening and closing valve. Mechanical manual fitness equipment using such a pneumatic pressure is operated by the user to manually operate the switching valve to switch the direction of pushing or pulling the lever in the direction of movement, if you want to control the exercise pressure, the pressure control valve is Will work. Unlike the hydraulic manual fitness equipment, the above-described mechanical manual fitness equipment using pneumatic pressure can give the user as much exercise load as desired by adjusting the strength of the compressed air when exercising in one direction, and thus rehabilitation of patients requiring precise exercise. There is an advantage that can be used for treatment, but there is a drawback that can not be performed at the same time pushing and pulling exercise. In other words, when doing strength exercise with a fitness device, the push and pull exercise together to develop a well-balanced muscle and increase the exercise effect, but the mechanical manual fitness device using the pneumatic pressure lever or pull direction The movement can be determined by setting the direction in only one of the two directions, so in order to perform both directions, there is no choice but to switch the direction after the movement in one direction to perform the movement in the other direction.

The invention devised to solve the shortcomings of the unidirectional pneumatic fitness device is disclosed in Korean Patent Laid-Open No. 10-2005-84707. 10-2005-84707 is a fitness device comprising a pneumatic cylinder connected to a lever of a fitness device, a pressure tank connected to the pneumatic cylinder, and a pressure regulating valve connected to the pressure tank, wherein the pneumatic cylinder is provided at both ends of the pneumatic cylinder. Respectively provided in the first and second orifice holes, the first circulation pipe connected to the first orifice hole and the pressure tank, the second circulation pipe connected to the second orifice hole and the pressure tank, and the first and second circulation pipes. Disclosed are a pneumatic fitness device including first and second directional valves respectively provided.

However, the present invention 10-2005-84707 has the following disadvantages, in particular bi-directional movement is not made properly.

Since compressed air required by the pneumatic mechanism is difficult to generate and provide immediately at the required pressure from the air compressor, the compressed air generated at a constant pressure by the air compressor is stored in the compressed air tank or the pressure tank. From compressed air tanks to pneumatic equipment. In other words, the compressed air tank serves as a buffer or a buffer of the compressed air. 10-2005-84707 is provided to connect both chambers of the compression cylinder to the same pressure tank and to have first and second directional valves therebetween, so as to open both directional valves during bidirectional movement. have. In this configuration, when the lever is pushed or pulled, the compressed air exiting the orifice of one chamber is not absorbed by the pressure tank and immediately increases the air pressure of the other chamber. This happens because both chambers are connected to the same pressure tank and the pressure tank cannot act as a buffer or buffer. If the air exiting the chamber immediately acts as the pressure in the other chamber when the lever is pushed in the direction of one chamber, the piston of the pneumatic cylinder moves without any force in any direction even if the pressure in the pressure tank is very large. You will have little effect on strength training. This problem is not fundamentally solved by reducing the orifice of the pneumatic cylinder.

In addition, the 10-2005-84707 invention employs an solenoid valve as a direction switching valve and opens and closes the direction switching valve by an electronic controller, which consumes a lot of power during energization to open or close the direction switching valve. In addition, it may cause a safety problem due to malfunction, and the manufacturing cost is excessive, there is a problem that is not suitable for general use in the gym.

The present invention devised to solve the problems of the conventional manual pneumatic fitness device is to provide a manual pneumatic fitness device that can implement all the advantages of the conventional mechanical manual pneumatic fitness device and mechanical manual hydraulic fitness device.

Another object of the present invention is to provide a passive pneumatic fitness device that can be effective at the same time bi-directional strength exercise.

Still another object of the present invention is to provide a passive pneumatic fitness device having low maintenance costs such as power consumption, no fear of malfunction or malfunction, and low production cost.

Manual pneumatic fitness device according to the present invention to achieve the above object is a double-acting cylinder connected to the piston rod to the lever of the fitness device; First and second compressed air tanks directly connected to orifices of the left and right chambers of the double-acting cylinder; An air compressor for generating compressed air; And between the first compressed air tank, the second compressed air tank, and the air compressor, wherein the compressed air generated by the air compressor according to a user's manual operation is one of the first compressed air tank or the second compressed air tank. Or a compressed air flow path conversion means for forming an air flow path to supply to all.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the manual pneumatic fitness device according to the present invention.

1a and 1b is a state diagram showing a state change when the lever and push the lever of the manual pneumatic fitness device according to the present invention, Figure 2 is a pneumatic circuit diagram of the manual pneumatic fitness device according to the present invention, Figure 3 4A and 4B show the pneumatic flow charts in the bidirectional motion, respectively.

1A and 1B, the manual pneumatic fitness device according to the present invention includes a frame 7 provided with a bench 10 in front and a lever 3 coupled to a hinge 8 at an upper portion of the frame 10. It includes a lever knob (2) coupled to the tip of the lever (3). Double-acting cylinder (5) body end of the manual pneumatic fitness device according to the present invention is coupled to the hinge (6) in the middle of the frame (7), the front end of the piston rod (4) of the double-acting cylinder (5) is the lever ( 3) The hinge 9 is coupled to the tip. Near the bench 10 is provided with a pneumatic control box 11 is provided with a compressed air flow path switching means and a hydraulic control switch. The user may sit on the bench 10 and push the lever, as shown in FIG. 1A, or do strength training, while pulling the lever, as shown in FIG. 1B. At this time, the double-acting cylinder 5 serves as a unidirectional or bidirectional air spring.

2, the manual pneumatic fitness device according to the present invention is a double-acting cylinder (5) connected to the piston rod (4) to the lever (2) of the fitness device (1), the piston (PS) of the double-acting cylinder (5) Has a pneumatic device that can provide pressure in the opposite direction of the force exerted by the user. The pneumatic device includes a first compressed air tank 12a and a second compressed air tank 12b directly connected to the orifices OR1 and OR2 of the left and right chambers C1 and C2 of the double acting cylinder 5 and the compressed air. It is provided between the air compressor 19 to be produced, the first compressed air tank 12a and the second compressed air tank 12b and the air compressor 19, the air compressor 19 according to the manual operation of the user Compressed air flow path switching means for forming a flow path to supply the compressed air generated in the first compressed air tank (12a) or the second compressed air tank (12b) to either or both. By this configuration, it is possible to implement both the advantages of the conventional mechanical manual pneumatic fitness equipment and mechanical manual hydraulic fitness equipment. That is, during bidirectional strength exercise, the air pressure of the chambers C1 and C2 of the double-acting cylinder 5 can be kept constant by the air pressure of the compressed air tanks 12a and 12b independently installed in the chambers C1 and C2. Therefore, sufficient pneumatic pressure is applied to both directions of the piston (PS) of the double-acting cylinder (5) to effectively perform the bidirectional strength movement.

The compressed air flow path converting means may be configured in various ways, but since the present invention relates to a desirable fitness device to enable the exercise according to the user's choice while ensuring safety, the flow path switching is implemented by a manual valve. It is preferable. 2 to 4B show compressed air using two manual two-position two-port valves 17 and 18, two manual two-position five-port valves 15 and 16, and three shuttle valves 13a, 13b and 13c. An example of configuring the flow path switching means is illustrated.

As shown in FIG. 2A, the compressed air flow path switching means includes a first two-position manual opening / closing valve 18 for opening and closing the output air of the air compressor and an output air of the first opening / closing valve 18. The flow path is simultaneously connected to the first compressed air tank 12a and the second compressed air tank 12b, or to any one of the compressed air tanks of the first compressed air tank 12a or the second compressed air tank 12b. The first compression control port 16 of the manual 2-position 5-port connecting to the second direction control valve 15 which can be selected to be connected, and the output air flow path of the first direction control valve 16 to the first compression The second direction control valve 15 of the manual 2-position 5-port connected to the compressed air tank of either the air tank 12a or the second compressed air tank 12b and the first air pressure difference are introduced by the inlet air pressure difference. The compressed air tank 12a is connected to the first direction control valve 16 or the second direction control valve 15. A first shuttle valve (13a) to be connected and the second compressed air tank (12b) to the first direction control valve (16) or the second direction control valve (15) by the flow of pneumatic pressure difference It can be comprised by two shuttle valves 13b.

At this time, the output end of the first opening and closing valve 18 is preferably further provided with a second opening and closing valve that can bypass the compressed air to the air in parallel with the first directional control valve (16). In addition, it is preferable to further include a pressure gauge mounting third shuttle valve 13b between the output port c of the first shuttle valve 13a and the output port c of the second shuttle valve 13b. .

Hereinafter, the flow of compressed air in the two-way or one-way movement using the manual pneumatic fitness device according to the present invention having the above-described configuration will be described in detail with reference to FIGS. 3, 4A and 4B.

3 is a flow chart of compressed air during bidirectional strength training. For bi-directional strength exercise, the user operates the first opening / closing valve 18 to connect the first position P1 to the conduit, and the first direction control valve 16 to operate the second position P2 to the conduit. Connect. Then, the compressed air generated by the air compressor 19 is passed through the first opening / closing valve 18-> the first direction control valve 16-> the first shuttle valve 13a and the second shuttle valve 13b. The first compressed air tank 12a and the second compressed air tank 12b are filled. The compressed air filled in the first compressed air tank 12a flows into the first chamber C1 through the orifice OR1 of the double-acting cylinder 5 and effectively pressurizes the piston PS in the a direction. At the same time, the compressed air filled in the second compressed air tank 12b flows into the second chamber C2 through the orifice OR2 of the double-acting cylinder 5 and effectively pressurizes the piston PS in the b direction. . Accordingly, the piston rod 4 connected to the piston PS is pushed in any direction so that the pressure acts and the bidirectional strength movement can be performed simultaneously.

4A is a flow chart of compressed air during one-way pull motion. In order to perform the pulling motion, the p-direction pneumatic pressure must be applied to the piston PS of the double-acting cylinder 5. To this end, the user operates the first opening / closing valve 18 to connect the first position P1 to the conduit, and the first direction control valve 16 to connect the first position P1 to the conduit. The second position control valve 15 is operated to connect the first position P1 to the second shuttle valve 13b. Then, the compressed air generated by the air compressor 19 passes through the first opening / closing valve 18-> the first direction control valve 16-> the second direction control valve 15-> the second shuttle valve 13b. Is filled in the second compressed air tank (12b). The compressed air filled in the second compressed air tank 12b flows into the second chamber C2 through the orifice OR2 of the double-acting cylinder 5 and presses the piston PS in the b direction. At this time, the compressed air that has been charged in the first chamber C1 of the double acting cylinder 5 passes through the first compressed air tank 12a and the first shuttle valve 13a and is formed of the first direction control valve 16. The air is discharged to the atmosphere through the one position P1 a port and the first position P1 a port of the second directional control valve 15. Accordingly, when the piston rod 4 connected to the piston PS is pulled, a pressure is applied to the piston rod 4 so as to allow muscular strength in the pulling direction.

4B is a flow chart of compressed air during one-way pushing motion. In order to move the pneumatic pressure in the a direction to the piston (PS) of the double-acting cylinder (5) must be applied. To this end, the user operates the first opening / closing valve 18 to connect the first position P1 to the conduit, and the first direction control valve 16 to connect the first position P1 to the conduit. The second position control valve 15 is operated to connect the second position P2 to the first shuttle valve 13a. Then, the compressed air generated by the air compressor 19 passes through the first opening / closing valve 18-> the first direction control valve 16-> the second direction control valve 15-> the first shuttle valve 13a. Is filled in the first compressed air tank (12a). The compressed air filled in the first compressed air tank 12a flows into the first chamber C1 through the orifice OR1 of the double-acting cylinder 5 and presses the piston PS in the a direction. At this time, the compressed air that has been charged in the second chamber C2 of the double acting cylinder 5 passes through the second compressed air tank 12b and the second shuttle valve 13b and is formed of the first direction control valve 16. The air is discharged to the atmosphere through the first position P1 a port and the second position P2 a port of the second directional control valve 15. Accordingly, when the piston rod 4 connected to the piston PS is pushed, the pressure acts and the muscular movement in the pushing direction is possible.

According to the present invention having the above-described configuration, according to the user's selection, there is an effect that can effectively perform bi-directional strength training and unidirectional strength training, low maintenance cost such as power consumption, and fear of malfunction or wrong operation There is no effect, it is possible to provide a low-cost manual pneumatic fitness equipment.

Claims (2)

A double-acting cylinder 5 in which a piston rod 4 is connected to the lever 2 of the fitness device 1; A first compressed air tank 12a and a second compressed air tank 12b directly connected to the orifices of the left and right chambers of the double-acting cylinder 5; An air compressor 19 for generating compressed air; And The first compressed air tank 12a and the second compressed air tank 12b and the air compressor 19 is provided between the first compressed air generated by the air compressor 19 according to the user's manual operation Passive pneumatic fitness equipment comprising a; compressed air flow path switching means for forming a flow path to supply to any one or both of the air tank (12a) or the second compressed air tank (12b). The method of claim 1, The compressed air flow path converting means A first open / close valve (18) having a manual 2-position 2-port for opening and closing the output air of the air compressor; The output air flow path of the first open / close valve 18 is simultaneously connected to the first compressed air tank 12a and the second compressed air tank 12b, or the first compressed air tank 12a or the second compressed air tank A first two-position 5 port first directional control valve 16 connected to a second directional control valve 15 selectable to connect to any one of the compressed air tanks of any one of (12b); And A manual two-position five-port port connecting the output air flow path of the first directional control valve 16 to the compressed air tank of either the first compressed air tank 12a or the second compressed air tank 12b; Manual pneumatic fitness equipment, characterized in that comprising a; two-way control valve (15).

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