KR200295807Y1 - Running belt shock-absorbing structure of running machine - Google Patents

Abstract

The present invention relates to a treadmill capable of absorbing shock, and an object of the present invention is to insert a shock absorber into the lower portion of the running belt to effectively absorb excessive shock and noise generated during exercise, thereby minimizing user fatigue and causing a pleasant environment. The present invention relates to a running belt buffer structure of a treadmill that enables maximization of exercise effect.

The above object of the present invention is installed on the lower end of the running belt 30, the support plate 35 for directly supporting the load of the user, and the side to be located on the left and right side of the running belt 30 to support the support plate 35 It is achieved in the running belt buffer structure of the treadmill consisting of a frame 40, and a buffer mechanism 50 for mutually buffering action between the side frame 40 and the support plate 35.

Description

Running belt shock-absorbing structure of running machine

The present invention relates to a treadmill capable of absorbing shock, and more particularly, effectively absorbs the impact and noise generated during exercise by effectively buffering the load on the running belt according to the user's weight, thereby minimizing the running fatigue of the user and It relates to a running belt buffer structure of a treadmill that can maximize the exercise effect due to a comfortable environment.

In general, modern people do not have much time to exercise for their health by spending time outside their leisure time, and they are neglecting their health by relying on vehicles at close distances due to the expansion of transportation.

As a result, modern people make up for lack of exercise in places such as health clubs for the purpose of health promotion, or have a few exercise equipments in their homes and use their spare time to exercise.

In particular, the treadmill as an exercise device that can lightly walk or run indoors has been widely used in recent years.

As shown in FIG. 1, a general configuration of such a treadmill is a treadmill running belt 4 having a predetermined width between an idle roller 3 and an interlocking roller 2 installed inside a base 1. And a support plate 9 such as a veneer plywood is installed at the lower part of the running belt 4 to support the running belt 4, and the interlocking roller 2 at the front is coupled to the interlocking flywheel 5 to be axially mounted. (1) is connected by a drive flywheel (M-1) and the interlocking belt (6) coupled to the shaft of the electric motor (M) in the front of the built-in.

The treadmill having the configuration as described above is supported by the support frame 7 while the user stands on the running belt 4 and is operated by operating the control panel 8 electrically connected to the electric motor M. By driving the motor (M), by rotating the interlocking roller (2) by the rotation interlocking of the interlocking flywheel (5) connected to the drive flywheel (M-1) and the interlocking belt (6) to the running belt (4) fitted thereto The running movement in which the user walks or runs on the track while rotating in the caterpillar is performed by adjusting the speed of the running belt 4 by controlling the speed of the electric motor M by the manipulation of the control panel 8.

However, the conventional treadmill as described above receives the impact load generated when the user walks or runs on the running belt 4 from the support plate 9 fixed to the lower portion of the running belt 4, thereby receiving the impact load of the user. Cannot absorb effectively,

In addition, there is a disadvantage in that the impact noise applied during running as it is emitted as a factor to increase the user fatigue.

Moreover, since the conventional treadmill absorbs the user's shock simply by the support plate 9 installed at the bottom, the support plate 9 is used for running in the case of an adult man who has a large weight of the user or an obese person. By using a plywood having a strength capable of receiving the impact load by the user, a person who has a small weight, such as a female or a child, the weakness of the support plate (9) can not effectively provide shock absorption because the cushioning degree of the support plate 9 is weak There was a disadvantage of high running fatigue.

In order to improve the above problems, the shock absorbing treadmill of the Republic of Korea Utility Model Registration No. 261692 has been disclosed.

As shown in FIG. 2, the source technology includes a main driving unit 12 directly contacting a user and a sub driving unit 15 positioned inside the main driving unit 12 to cushion the running belt 14. The main driving unit 12 has main rollers 16 and 16 formed on both sides thereof to fit the wide running belt 14 to the bottom surface, and the sub driving unit 15 has sub rollers 13a on both sides thereof. , 13b) to fit the subbelt 17, and the running belt 14 by moving the subroller 13a on the other side up and down by using the one side subroller 13b of the sub-drive part 15 as a hinge axis. It is configured to support from inside.

However, the source technology has a sub-roller (13a) to support the area between the main rollers (16, 16) having a predetermined width as effective support across the front of the running belt (14) is difficult to absorb shock smoothly The sub-roller 13a is provided with a cushioning operation due to up and down oscillation at the time of the user's running, and thus, a comfortable exercise condition is not guaranteed because vibration of the running belt 14 occurs due to up and down oscillation. By receiving the expansion and contraction of the running belt 14 fitting the main rollers 16 and 16 with the up-down swing buffer of the sub-roller 13a, the stretching distance of the running belt 14 is large, resulting in short belt life. There was a downside to losing.

The present invention is devised to effectively solve the disadvantages of the prior art as described above,

An object of the present invention is to provide a running belt buffer structure of the treadmill to maximize the reliability of the device by effectively absorbing the impact applied to the running belt regardless of the weight of the user to minimize the fatigue of the user.

It is an object of the present invention to provide a running belt buffer structure of the treadmill that maximizes the exercise effect in a comfortable exercise condition by minimizing the noise caused by the impact load when walking or running on the treadmill regardless of the user's weight.

The object of the present invention is installed on the lower end of the running belt to support the load of the user directly, the side frame positioned on the left and right sides of the running belt to support the support plate, and the mutual buffer between the side frame and the support plate The shock load applied to the support plate, which is composed of a shock absorbing mechanism that acts, is achieved by the running belt buffer structure of the treadmill that absorbs and buffers the shock absorbing mechanism effectively.

1 is a side sectional view showing a structure of a treadmill according to the prior art;

Figure 2 is a side cross-sectional view of the line-type shock absorbing treadmill,

3 is a side cross-sectional view of the treadmill to which the present invention is applied,

Figure 4 is an enlarged front sectional view of the excerpt "F" portion of Figure 3,

4A is a front sectional view before a load of a state before use is applied;

4B is a front sectional view of a state in which a load by use is applied;

5 is an enlarged sectional view taken from the "G" part of FIG. 4A;

6 is a shock-absorbing operation of the cushioning rubber member which is a member of the present invention,

Figure 7 is an enlarged front sectional view of the main portion showing another embodiment of the present invention.

<Description of Symbols for Major Parts of Drawings>

30: running belt 35: support plate

36: center hole 37: slide bushing

40: side frame 41: upper horizontal

45: support nut 50: buffer mechanism

51: cushioning rubber member 55: guide bolt

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

That is, the present invention, as shown in the accompanying drawings, Figures 3 to 6, the support plate 35 is installed on the lower end of the running belt 30 to directly support the load of the user, the left and the left of the running belt 30 It is composed of a side frame 40 positioned on the right side to support the support plate 35, and a buffer mechanism 50 for mutually buffering action between the side frame 40 and the support plate 35.

The support plate 35 is installed on the upper side of the side frame 40 installed on both sides in the longitudinal direction of the treadmill, the slide bushing 37 in the lower side is assembled by a forced crimping by riveting method,

The side frame 40 is assembled to the upper horizontal section 41 by the support nut 45 against the slide bushing 37 by a forced crimping method,

The shock absorbing mechanism 50 has a buffer rubber member 51 interposed between the slide bushing 37 and the support nut 45, and passes through the shaft hole 53 of the shock absorbing rubber member 51. The lower end of the 55 is screw-assembled to the support nut 45 and fixed by the fixing nut 54, and the upper end is installed in a part of the center hole 36 of the slide bushing 37.

At this time, the slide bushing 37 forcibly protrudes the support flange 38 so as not to fall to the upper portion during the lowering operation process by the impact load of the user during the crimping assembly by the riveting method to the support plate 35 It was pressed and assembled.

In addition, the side frame 40 is typically formed by an extrusion method of aluminum material and the thickness of each member constituting it and the upper horizontal portion 41, which is one of them, is about 2 mm at most, so that the slide bushing ( 37) the upper end is fitted, it is difficult to firmly fix the lower end of the guide bolt 55 for guiding the support plate 35 down without flow in the thickness.

Therefore, in order to provide a fixed state of the guide bolts 55, in the present invention, the support nut 45 having a predetermined height dimension h is forcedly compressed by a riveting method to the upper portion of the upper horizontal section 41. The upper and lower surfaces of the upper and lower fixing flanges (48, 49) to be assembled by force to provide a screw assembly distance that can maintain the screw assembly force of the lower end of the guide bolt (55).

In addition, the cushioning rubber member 51 has a hollow shape so that the outer circumferential surface and the inner circumferential surface of the support plate 35 are vertically contracted at the same time according to the load of the user applied to the support plate 35. When the expansion is provided and the impact load is removed, the convex inner circumferential surface 51a and the convex outer circumferential surface 51b that are curved outwardly outward are narrowly formed from the lower side to the upper side so as to allow the original return without deformation.

At this time, the convex inner circumferential surface 51a of the cushioning rubber member 51 has a seating groove 57 and the guide bolt 55 which surround the outer circumferential surface and the upper circumference of the fixing nut 54 to prevent flow. The projection ring 52 forming the shaft hole 53 to be fitted is projected inward.

As shown in FIG. 7, the buffer rubber member 51 may be one in which the convex inner circumferential surface 51a and the convex outer circumferential surface 51b are convex in the center.

Reference numeral 60 in the drawing shows a finish.

In the present invention, the user performs a running movement in which the user walks or runs the running belt 30 in the same manner as the conventional method in the state before the user's load is applied as shown in FIGS. 4A and 5.

By the running motion of the user, the impact load of the user is applied to the support plate 35 as shown in FIG. 4B.

As the support plate 35 descends due to the impact load applied thereto, the slide plate 37 and the guide bolt 55 vertically press the upper end of the buffer rubber member 51 of the shock absorbing mechanism 50. Will descend.

The vertical lowering of the support plate 35 absorbs and buffers the same while expanding the outer circumferential surfaces 51a and 51b in the convex portion of the cushioning rubber member 51 in the horizontal direction in the outward direction.

As shown in FIG. 6, the cushioning rubber member 51 has a larger amount of the user's load, and the expansion of the cushioning rubber member 51 in the horizontal direction of the convex and outer circumferential surfaces 51a and 51b is increased, but the shock absorbing of the shock load is increased. Each user is provided identically.

That is, the cushioning rubber member 51 is different in elasticity according to the load of the user, for example, the load generated by the user of 60kg has a weak impact strength, so that the convex inner and outer peripheral surfaces 51a, 51b) It is possible to absorb shock with a small amount of horizontal expansion, and a user with a heavy load of 100 kg is able to absorb shock with a large state of horizontal expansion of the cushioning rubber member 51.

As described in detail above, the present invention effectively absorbs the shock applied to the knee joint and spine by varying the degree of cushioning according to the user so as to always have the same buffering effect regardless of the user's weight, and by the user's shock By minimizing the noise generated is a very useful design that provides the effect that can be exercised in a comfortable environment.

Claims (5)

Installed on the lower end of the running belt 30 is composed of a support plate 35 for directly supporting the load of the user, and the side frame 40 positioned on the left and right sides of the running belt 30 to support the support plate 35 In the running belt buffer structure of the running machine, The support plate 35 is installed on the upper side of the side frame 40 installed on both sides in the longitudinal direction of the treadmill, the slide bushing 37 is assembled at the lower side by a forced crimping by riveting method, The side frame 40 is assembled to the upper horizontal section 41 by the support nut 45 against the slide bushing 37 by a forced crimping method, The shock absorbing mechanism 50 is configured to mutually buffer the side frame 40 and the support plate 35, and the shock absorbing mechanism 50 is a cushioning rubber between the slide bushing 37 and the support nut 45. The member 51 is interposed, and the lower end portion of the guide bolt 55 is screwed to the support nut 45 through the shaft hole 53 of the buffer rubber member 51 and fixed with the fixing nut 54. The upper end of the running belt cushioning structure of the treadmill, characterized in that is installed in a part fitted state in the central hole 36 of the slide bushing (37). The method of claim 1, The slide bushing 37 is a running belt cushioning structure of the treadmill, characterized in that the support plate (38) is forcibly assembled by protruding by pressing the support flange 38 so as not to fall out. The method of claim 1, The support nut 45 is assembled by engaging the upper and lower surfaces of the upper horizontal section 41 with the upper and lower fixing flanges 48 and 49 forcibly protruding from the lower end of the guide bolt 55. Running belt cushioning structure of the treadmill, characterized in that it has a screw assembly distance that can maintain. The method of claim 1, The cushioning rubber member 51 is a running belt cushioning structure of the treadmill, characterized in that the convex inner circumferential surface (51a) and the convex outer circumferential surface (51b) facing in an outwardly curved in a hollow form narrowly formed going from the bottom to the top. The method according to claim 1 or 4, The convex inner circumferential surface 51a of the cushioning rubber member 51 is axially fitted with a seating groove 57 and the guide bolt 55 to prevent flow by surrounding the outer circumferential surface and the upper circumference of the fixing nut 54 at the lower side thereof. The running belt buffer structure of the running machine, characterized in that the projection ring 52 formed with the shaft hole 53 is projected inward.