KR20170052435A

KR20170052435A - Device for reducing vibration noise of vibratory type exercise apparatus

Info

Publication number: KR20170052435A
Application number: KR1020160031919A
Authority: KR
Inventors: 신희섭
Original assignee: 주식회사이앤에스테크; 신희섭
Priority date: 2015-11-03
Filing date: 2016-03-17
Publication date: 2017-05-12
Also published as: KR101842626B1

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a noise reduction apparatus for a vibration type exercise apparatus that vertically vibrates vertically by a vibrator,
In order to achieve the above object, the present invention provides a balance spring installed in a vibrating motion mechanism around a periphery of a lower plate and an upper plate so as to maintain a horizontal position without tilting the upper plate in a specific direction while the upper plate vibrates A spring clamp for receiving both ends of the balance spring at both ends is provided to reduce the impact noise generated at both ends of the balance spring, and a fixing bolt for fixing the spring clamp supports both side ends of the balance spring Thereby preventing flow and escape.

Description

TECHNICAL FIELD [0001] The present invention relates to a noise reduction apparatus for a vibration type exercise apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a noise reduction apparatus for a vibration type exercise apparatus vertically vibrating vertically by a vibrator, and more particularly, To a noise reduction device for a vibration type exercise device.

In general, improving diet and regular exercise is the best way to solve obesity. However, due to the increase of various stress factors in modern society and lack of leisure time due to intense competition, Is not easy to secure.

In addition, due to excessive urban development, places to exercise are gradually diminishing, and even if there is space for exercise in the city center, air pollution caused by vehicle exhaust gas is serious, The place is also very scarce.

For the above reasons, various exercise apparatuses capable of easily exercising a movement effect in the house are being presented. Among the exercise apparatuses, a exercise apparatus using vibration is a representative example of such exercise apparatuses.

Conventionally, in general vibration type exercise machines, a rotational force is generated by a motor, and the rotational force is converted into vertical and / or lateral vibration using a cam to obtain a motion effect.

Patent Document 1 discloses a vibration type exercise apparatus using an electromagnet and a coil. The vibration type exercise apparatus includes a lower plate and an upper plate arranged in parallel horizontally, a vibrator disposed at the center between the lower plate and the upper plate, A plurality of balance springs are provided around the edge between the lower plate and the upper plate so that the upper plate can be vibrated while the upper plate can be held horizontal without tilting in a specific direction.

However, such a conventional vertical motion mechanism has a problem that it is difficult to use it in an apartment or the like due to a large vibration noise when a strong vibration is generated. Particularly, the lower end and the upper end of the balance spring are installed so as to be in contact with the lower plate and the upper plate, When a person who is exercising on a footstep suddenly descends from a footstep while the footsteps suddenly come down from the footsteps, a loud noise is generated due to a strong upward vibration, or when the footsteps And the like.

In Patent Document 2, which was filed by the present applicant, a gasket is provided at the upper surface contact portion and the lower surface contact portion of the spring seat, where the both ends of the balance spring are in contact, so as to reduce the impact noise between the end of the balance spring and the upper and lower plates And the like. However, the balance spring still generates a collision noise with the gasket on the upper surface and the gasket on the lower surface in the spring seating groove, and also causes a collision with the side surface in the spring seating groove, thereby generating noise.

In another prior art disclosed in Japanese Patent Application Laid-Open Publication No. 2003-245057, the spring fixing bracket is provided at a portion adjacent to both ends of the balance spring to limit the movement of both ends of the balance spring, There is a problem that noise is still generated due to collision contact between the spring fixing bracket itself and the balance spring.

Patent Registration No. 10-0620147 (published on September 13, 2006) Patent Registration No. 10-1329786 (published Nov. 15, 2013) Patent Registration No. 10-1476050 (published on December 23, 2014)

SUMMARY OF THE INVENTION The present invention has been developed in order to overcome the problems described above, and it is an object of the present invention to provide a vibration type exercise apparatus in which a large number of vibration plates are provided around an edge between a lower plate and an upper plate, The present invention provides a noise reduction apparatus for a vibration type exercise apparatus which is capable of reducing impact noise generated at both ends of a balance spring by providing a spring clamp for receiving both ends of a balance spring at both ends of a balance spring It has its purpose.

In order to accomplish the above object, there is provided an apparatus for noise reduction of a vibrating exercise machine, comprising: a lower frame and an upper frame spaced apart from each other in a vertical direction; A vibrator installed at the center of the lower frame and the upper frame to vibrate the upper frame according to magnetization of the electromagnet; And a vibration absorber installed around the lower frame and the upper frame to prevent buffering and leaning of the upper frame during vibration, the vibration absorber comprising:

A balance spring which is made of a coil-shaped elastic member and has opposite ends that are in contact with the lower frame and the upper frame, respectively; A guide shaft penetrating through the center of the balance spring to prevent the balance spring from coming off; A shaft flange formed at the upper end of the guide shaft to have a diameter larger than the diameter of the balance spring and to fasten the guide shaft to the upper frame; A guide bush having a guide groove formed therein for guiding vibration movement of the guide shaft and having a linear bearing on an inner circumferential surface of the guide groove; A bushing flange having a diameter larger than a diameter of the balance spring at a lower end of the guide bush and fixing the guide bush to the lower frame; A pair of ring-shaped spring clamps of a synthetic resin material are annularly coupled to receive the upper ends of the balance springs and are fixed to the shaft flanges by fixing bolts, and the fixing bolts support the side surfaces of the upper ends of the balance springs, An upper spring clamp adapted to be rotated; A pair of half-hook spring clamps of a synthetic resin material are annularly coupled to receive the lower end of the balance spring and are fixed to the bush flange by a fixing bolt. The fixing bolt supports the side surface of the lower end of the balance spring And a lower spring clamp adapted to rotate the lower spring.

The shaft flange and the bush flange are each formed with one or more fastening grooves and fastened to the upper frame and the lower frame by bolts, respectively.

A circular protrusion is formed at the center of the upper surface of the shaft flange. A receiving groove is formed in the bottom surface of the upper frame corresponding to the protrusion, and the guide shaft is fixed by the coupling between the protrusion and the receiving groove.

According to the present invention, the upper and lower ends of the balance springs, which are installed between the upper frame and the lower frame to hold the upper frame horizontally, are wrapped with a synthetic resin material such as a urethane spring clamp, The impact noise generated at both ends of the spring clamp can be reduced when the upper frame is vibrated and the effect of preventing the escape of the foot plate can be prevented even if the user suddenly falls down during the exercise in the upper frame have.

1 is an external perspective view of a vibration exercise device to which the present invention is applied,
Fig. 2 is a longitudinal sectional view taken along the line AA of Fig. 1,
Fig. 3 is a longitudinal sectional view of Fig. 1 viewed from the other direction,
4 is an enlarged cross-sectional view of a vibration absorbing portion according to the present invention,
5 is an assembled perspective view of the vibration absorbing portion according to the present invention,
6 is an exploded perspective view of a vibration absorbing part according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention so that various equivalents And variations are possible. The same components are denoted by the same reference numerals.

Brief Description of the Drawings Fig. 1 is an external perspective view of a vibration exercise machine to which the present invention is applied.

The oscillatory exercise device 100 may include a foot plate 10, which is vertically and vertically movable with a predetermined amplitude and period, and a handle 20, which is installed at the foot plate 10.

The handle 20 acts as a handle for gripping the pedal plate 10 when the foot plate 10 is vibrated so that a person who moves and does not fall during the exercise, The backrest portion 30 can be coupled to serve as a backrest.

The footrest 10 is composed of an upper housing 10A and a lower housing 10B and the upper housing 10A is moved vertically and vertically with a predetermined amplitude and a predetermined cycle in a state where the lower housing 10B is placed on the floor, do.

2 and 3 show cross-sectional views of the foot part according to the invention, viewed from different positions.

The upper frame 40 and the lower frame 50 are integrally coupled to the inside of the upper housing 10A and the lower housing 10B, respectively. The upper and lower housings 10A and 10B form an outer appearance of the footrest 10 and serve as a finishing material. The upper frame 40 and the lower frame 50 are horizontally arranged vertically, And maintains the rigidity when the foot plate 10 vibrates. Therefore, it is preferable that the upper frame 40 and the lower frame 50 are formed of a metal material having a predetermined thickness so as not to cause a warping deformation when a person moves on the footing part 10 and moves. In addition, the upper housing 10A and the upper frame 40, the lower housing 10B and the lower frame 50 may be separately manufactured and joined together, but they may be integrally formed as necessary.

At the center of the upper frame 40 and the lower frame 50, a vibrator 60 for vibrating the upper frame according to the magnetization of the electromagnet is provided.

The vibrator 60 is composed of a bobbin 62 and a movable magnet 64 on which a coil is wound. The direction of the magnetic field formed by the coil is changed in accordance with the direction of the current flowing through the coil of the bobbin 62 The magnetic field generated by the coil acts on the movable magnet portion 64 by acting on the magnetic field generated by the movable magnet portion 64 and the repulsive force. In the illustrated example, the bobbin 62 is fixed to the lower frame 50 and the movable magnet portion 64 is fixed to the upper frame 40, so that it corresponds to the frequency and amplitude of the current flowing through the coil of the bobbin 62 So that the movable magnet portion 64, that is, the upper frame 40 is vibrated. The movable magnet unit 64 may use a ferromagnetic material such as neodymium (Nd) to increase the vertical oscillation motion.

A plurality of vibration absorbing parts 70 are provided around the edges of the lower frame 50 and the upper frame 40 to prevent the upper frame 40 from leaning while the upper frame 40 vibrates.

5 is an assembled perspective view of the vibration absorber 70 according to the present invention, and FIG. 6 is an exploded perspective view of the vibration absorber 70 according to the present invention. Respectively.

The vibration absorbing part 70 is composed of a coil-shaped elastic body and has a balance spring 71 whose both ends are in contact with the lower frame 50 and the upper frame 40, respectively. The balance spring 71 prevents the impact by preventing the upper frame 40 from reaching the top dead center or the bottom dead center when the upper frame 40 vibrates according to the operation of the vibrator 60, So that the body of the exerciser on the footrest 10 can be prevented from leaning even if it tilts in a specific direction.

The balance spring 71 is supported between the upper frame 40 and the lower frame 50 by a guide member 80 passing through the inside of the coil shape to prevent the balance spring 71 from being separated.

The guide member 80 includes a guide shaft 81 having one end fixed to the upper frame 40 via a shaft flange 92 and the other end projecting toward the lower frame 50 as a free end, And a guide bush 82 having a groove 83 for receiving the guide shaft 81 and having one end fixed to the lower frame 50 via a bush flange 94.

A linear bearing 84 may be installed on the inner circumferential surface of the guide groove 83. The linear bearing 84 reduces the friction when the guide shaft 81 vertically vibrates in the guide groove 83, so that the linear bearing 84 smoothly vibrates.

The shaft flange 92 is preferably formed to have a larger diameter than the balance spring 71 so as to support the entire upper surface area of the balance spring 71 and to be easily fixed to the upper frame 40, The bush flange 94 is preferably formed to have a larger diameter than the balance spring 71 so as to support the entire lower surface area of the balance spring 71 and to be easily fixed to the lower frame 50.

In the illustrated example, the shaft flange 92 and the bush flange 94 are bolted to the upper frame 40 and the lower frame 50.

Particularly, the upper spring clamp 110 is installed on the upper part of the balance spring 71 and the lower spring clamp 120 is installed on the lower part of the balance spring 71. When the upper frame 40 vertically vibrates vertically, So as to prevent noise that may be generated due to collision of both ends.

6, the upper spring clamp 110 includes a pair of semicircular spring clamps 110A and 110B made of a synthetic resin material, which are annularly coupled to each other to define upper and lower surfaces of the upper end of the balance spring 71, To accept. To this end, a step portion 112 is formed on the inner surface of the upper spring clamp 110.

The upper spring clamp 110 is fixed to the shaft flange 92 by a fixing bolt 114 and a pair of semicircular spring clamps 110A and 110B are tightly fixed to each other by bolts 116 on both sides. Respectively.

Similarly, the lower spring clamp 120 is configured to receive a bottom surface and a side surface of the lower end of the balance spring 71 by coupling a pair of semicircular spring clamps 120A and 120B made of synthetic resin. To this end, a step portion 122 is formed on the inner surface of the lower spring clamp 110.

The lower spring clamp 120 is fixed to the bush flange 94 by a fixing bolt 124 and a pair of semicircular spring clamps 120A and 120B are tightly fixed to each other by bolts 126 on both sides. Respectively.

The lower end of the balance spring 71 is surrounded by the lower spring clamp 120 and the upper end of the lower spring clamp 120 is surrounded by the upper spring clamp 110 and the upper end of the balance spring 71 is fixed to the upper shaft flange 92 surrounded by the upper spring clamp 110, When the upper frame 40 is vertically vibrated by the flange 94, almost no clearance is generated between the upper end and the lower end of the balance spring 71, so that no impact noise is generated. The impact of the upper spring clamp 110 and the lower spring clamp 120 and the noise absorption do not cause a collision noise. 4, the upper end portion of the balance spring 71 is supported by the fixing bolts 114 so that the flow in the lateral direction is prevented, and the lower end portion of the balance spring 71 is fixed to the fixing bolt 124 So that lateral deviation or flow of the balance spring 71 is prevented and noise is not generated.

The upper spring clamp 110 and the lower spring clamp 120 may be formed of a synthetic resin material such as urethane in consideration of noise prevention and durability.

One or more coupling grooves 93 and 95 are formed in the shaft flange 92 and the bush flange 94 so that bolts 96 are inserted into the upper frame 40 and the lower frame 50, (Not shown).

A circular protrusion 91 is formed at the center of the upper surface of the shaft flange 92 and a receiving groove 99 may be formed in the upper frame 40 at a position corresponding to the protrusion 91. This makes it possible to more firmly connect the shaft flange 92 to the upper frame 40 by allowing the projection 91 and the receiving groove 99 to engage with each other.

Hereinafter, the operation of the noise reduction apparatus of the vibration exercise apparatus according to the present invention will be described in more detail.

When the vibrator 60 connecting the upper frame 40 and the lower frame 50 is operated at the center of the upper frame 40 and the lower frame 50, the lower frame 50 is supported on the floor, ) In the vertical direction.

At this time, when the frequency and the amplitude of the power source applied to the vibrator 60 are changed, the vibration period and the amplitude of the vibration of the upper frame 40 also change.

The balance spring 71 is repeatedly compressed and stretched as the upper frame 40 is vertically oscillated up and down. At this time, both ends of the balance spring 71 are connected to the upper spring clamp 110 and the lower spring clamp 120 The upper spring clamp 110 and the lower spring clamp 120 are fixed to the shaft flange 92 and the bush flange 94 respectively so that even though the balance spring 71 is relaxed as much as possible, Almost no clearance is generated between the upper spring clamp 110 and the lower spring clamp 120. Thus, even when the upper frame 40 is lowered at the top dead center, collision does not occur between the opposite ends of the balance spring 71 and the upper spring clamp 110 or the lower spring clamp 120, Even if a slight collision occurs instantaneously, substantially no impact noise is generated because the upper spring clamp 110 and the lower spring clamp 120 fully absorb the vibration.

Since the upper frame 40 is fixed to the upper end of the vibration absorbing part 70 including the balance spring 71 and the lower end of the vibration absorbing part 70 is fixed to the lower frame 50, It is possible to prevent the upper frame 10 from being detached due to the strong vibration in the upper direction by restricting the upward movement of the upper housing 10A even if a person is raised or lowered on the housing 10A, do.

10-footrest, 10A-upper housing,
10B-lower housing, 40-upper frame,
50 - lower frame, 60 - vibrator,
70 - Vibration absorber, 71 - Balance spring,
80 - guide member, 81 - guide shaft,
83 - guide groove, 82 - guide bush,
84 - Linear bearings, 91 - Projections,
92 - shaft flange, 99 - receiving groove,
110 (110A, 110B) - upper spring clamp,
120 (120A, 120B) - lower spring clamp,
112, 122 - stepped portion, 114, 124 - fixing bolt,
116,126 - volts.

Claims

A lower frame and an upper frame which are spaced apart from each other by a predetermined distance in a vertical direction; A vibrator installed at the center of the lower frame and the upper frame to vibrate the upper frame according to magnetization of the electromagnet; And a vibration absorber installed around the lower frame and the upper frame to prevent buffering and leaning of the upper frame during vibration, the vibration absorber comprising:
A balance spring which is made of a coil-shaped elastic member and has opposite ends that are in contact with the lower frame and the upper frame, respectively;
A guide shaft penetrating through the center of the balance spring to prevent the balance spring from coming off;
A shaft flange formed at the upper end of the guide shaft to have a diameter larger than the diameter of the balance spring and to fasten the guide shaft to the upper frame;
A guide bush having a guide groove formed therein for guiding vibration movement of the guide shaft and having a linear bearing on an inner circumferential surface of the guide groove;
A bushing flange having a diameter larger than a diameter of the balance spring at a lower end of the guide bush and fixing the guide bush to the lower frame;
A pair of ring-shaped spring clamps of a synthetic resin material are annularly coupled to receive the upper ends of the balance springs and are fixed to the shaft flanges by fixing bolts, the fixing bolts supporting the side surfaces of the upper ends of the balance springs, An upper spring clamp adapted to be rotated;
A pair of half-hook spring clamps of a synthetic resin material are annularly coupled to receive a lower end of the balance spring and are fixed to the bush flange by a fixing bolt. The fixing bolt supports a side surface of the lower end of the balance spring And a lower spring clamp adapted to be coupled to the lower spring clamp.

The apparatus of claim 1, wherein the shaft flange and the bush flange are formed with at least one fastening groove, and are fastened to the upper frame and the lower frame with bolts, respectively.

[3] The apparatus according to claim 1 or 2, wherein a circular protrusion is formed at the center of the upper surface of the shaft flange, a receiving groove is formed in a bottom surface of the upper frame corresponding to the protrusion, Wherein the noise reduction device is fixed.