KR20150106131A - The treadmill for with to impact prevent means - Google Patents

The treadmill for with to impact prevent means Download PDF

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Publication number
KR20150106131A
KR20150106131A KR1020140028240A KR20140028240A KR20150106131A KR 20150106131 A KR20150106131 A KR 20150106131A KR 1020140028240 A KR1020140028240 A KR 1020140028240A KR 20140028240 A KR20140028240 A KR 20140028240A KR 20150106131 A KR20150106131 A KR 20150106131A
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South Korea
Prior art keywords
user
running
leaf spring
impact force
frame
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KR1020140028240A
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Korean (ko)
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전철중
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전철중
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Priority to KR1020140028240A priority Critical patent/KR20150106131A/en
Publication of KR20150106131A publication Critical patent/KR20150106131A/en

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/02—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills
    • A63B22/0207—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills having shock absorbing means
    • A63B22/0228—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills having shock absorbing means with variable resilience

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  • Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Tools (AREA)

Abstract

The present invention relates to a running machine provided with an impact preventing means.
The running machine according to the present invention includes: a running belt connected between a driven roller and a driven roller which are spaced before and after a frame; A running belt installed between an upper portion and a lower portion of the running belt and rotated by motor driving, and a deck plate for supporting a weight of the user; And a control panel installed at one upper end of the frame with a handle to set a running or walking speed of the user himself or herself and displaying a motion state of the user, An arc-shaped leaf spring is bolted to the lower end of the frame to absorb and remove the impact force, and a wheel is rotatably fixed to one end of the leaf spring, so that the impact force acting under the frame when the user is running or walking The spring force of the arc-shaped plate spring is restored to the horizontal or in-position, and the rolling motion of the wheel pivotally connected to one end of the leaf spring is interlocked to absorb the impact force.
Therefore, according to the present invention, an arc-shaped leaf spring is elastically deformed to return to a horizontal shape or an original position by an impact force acting under the frame during a running or walking movement of the user, and is rotatably installed at one end of the leaf spring The rolling motion of the wheels can be smoothly absorbed and removed while the rolling motion of the wheels is interlocked with the running of the user. In addition, on the other side of the plate spring formed in the arch shape, A plurality of adjustment holes for adjusting the length are formed so that when the weight change of the user according to the age and sex of the user is changed, the length of the plate spring is adjusted to be increased or decreased according to the weight of the user, Regardless of user's weight change such as absorbing and removing impact force And it is possible to prevent the impact force from being concentrated in one place of the leaf spring.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a treadmill,

[0001] The present invention relates to a treadmill, and more particularly to a treadmill which absorbs impact force generated through a running or walking movement of a user, The leaf spring of the arch shape is elastically deformed to return to the horizontal shape or the home position by the impact force acting under the frame when the user is running or walking, and at the same time, And more particularly, to a treadmill equipped with an impact preventing means for smoothly absorbing and removing an impact force generated through a running or walking movement of a user while a rolling motion of a wheel that is rotatably installed is interlocked.

In general, a treadmill is a device for performing a running or walking motion in the room, and is designed to be used while appropriately adjusting the speed of the running belt to suit the cardiopulmonary function or the exercise face of the user. Products with added or improved performance are constantly being developed.

This running machine has a conventional structure in which a wide endless type running belt 20 is connected to a driven roller 14 and a driven roller 12 which are spaced apart from both sides of the frame 10, The driving roller 12 is connected to the rotating shaft of the motor 16 by a power transmitting means, and the driving belt 12 is connected to the rotating shaft of the motor 16 The rotation speed of the running belt 20 is changed by the controller having the speed controller in the case of the motor 16 and the rotational transfer speed of the running belt 20 is also controlled by the motor 16, (See Fig. 4A).

Meanwhile, in order to block and prevent the interlayer noise transmitted through the floor to the lower house, the shock, vibration, and noise generated when the user performs running or walking using the conventional running machine configured as described above, "Vibration Absorbing Device for Running Machine" published in Official Gazette No. 20-0428778, "Pedestal for Providing a Cushion to the Running Machine" published in Registration Practical Utility Model No. 20-0163733, Registered Utility Model No. 20-0342720 Quot; shock absorber of a running machine ", each of which is proposed in Japanese Patent Laid-Open Publication No. Hei 10 .

In the case of the first prior art vibration absorbing device for a running machine (Utility Model Registration No. 20-0428778), the first anti-slip rubber plate is attached to the upper surface of the supporting and / or noise absorbing plate, A mount filled with an anti-vibration rubber is fixed by a bolt so as to have a conical protruding portion in an upper part in a support ring of a metal material installed in the form of wrapping around the outer circumferential surface and is firstly absorbed through the support and noise absorbing plate, In the case of a pedestal (a utility model registration No. 20-0163733) which absorbs impact force, vibration and noise transmitted to a surface secondarily and provides a cushion to a second prior art treadmill, A lifting rod having a space portion into which the lifting rod can be inserted inward and a supporting plate capable of being grounded from the ground at its lower side, And a spring incorporated to provide a cushion by flexibly supporting the inserted wicket in the space, thereby providing a suitable cushion for the upper tread machine, and a shock absorbing device of the last prior art treadmill 20-0342720) is configured to absorb an impact applied to the main body by a hydraulic cylinder connected between the main body and the support frame, or the support lever connected to the support frame and the hydraulic cylinder are pin- A person who has a relatively light weight connected with a spring in the form of a parallel connection with a hydraulic cylinder between the connecting members is prevented from being impacted by a hydraulic cylinder or a spring, and a person having a lot of weight is prevented from being impacted by both the hydraulic cylinder and the spring .

However, in the above conventional prior arts, in the present invention, the support and the sound absorbing plate corresponding to the frame, the mount with the anti-vibration rubber as the impact preventing means at the lower ends of the cover body or the body, A hydraulic cylinder and a spring connected in parallel to each other, and a wheel used as a conveying means of the running machine are installed and fixed in separate structures. Therefore, the impact preventing means and the shock absorbing means, The overall structure of the apparatus is very complicated and the assemblability is also inconvenient, resulting in an increase in manufacturing and selling unit costs, resulting in a large economic burden as a consumer.

As a means for preventing the impact of the prior arts, there have been proposed a mount (a utility model registration No. 20-0428778) filled with an anti-vibration rubber, a pedestal with a built-in coil spring (Utility Model Registration No. 20-0163733) A cylinder and a spring (Utility Model Registration No. 20-0342720) are respectively applied. In this case, the vibration-proof rubber filled in the mount is made of a rubber material rather than a spring material. In addition, In addition, when the user applies an impact force through running or walking on the running machine, the anti-vibration rubber itself can not withstand the entire weight of the running machine. When the impact force acts on the running machine, In addition to the disadvantage of the above, the object of the impact preventing means can not be expected through the crushed mount as described above There was also a point.

Since the compression coil spring and the tension coil spring are respectively used for the hydraulic cylinder and the spring connected in parallel with the pedestal in which the coil spring is incorporated, which is the two shock prevention means using the remaining coil springs, , The compression coil spring and the tension coil spring itself are in contact with each other in the action of the impact force and the force of the impact force in the radial direction of the arch type, And the returning direction are all in the axial direction. Therefore, a structure in which the plate spring having the wheel fixed in a rotatable manner as described above is used as one structure as well as the noise is large in the collision between the iron wires wound in the axial direction in the structure When the impact force is applied, The rolling motion of the wheel rotatably installed at one end of the leaf spring is added together with the elastic deformation to return to the original state or the original position, and both the back spring and the wheel to be interlocked absorb the impact force. On the contrary, In the case of the mount packed with the anti-vibration rubber as well as the pedestal in which the coil spring itself is structured such that both the action of the impact force and the return direction are in the axial direction, the hydraulic cylinder and the spring connected in parallel, In order to solve all of the impact force as an axial structure, there is a completely different structure of the operation of the impact preventing means for solving the impact force such that the wheel itself is completely independent of the elastic action of the respective compression or tension springs and the vibration proof rubber. , Failure of the shock protection means against the prior art due to long term use In addition, when the shock absorber is continuously used in a state where the shock absorber is broken down, the impact force is concentrated on the wheels, and the wheel can not survive for a long time, and the shock absorber is damaged. And the like.

In order to solve the above-mentioned conventional problems, the present invention, which is devised to solve the above-mentioned problems, is constructed such that an arc-shaped leaf spring having a wheel rotatably fixed at one end thereof is installed at the lower end of two frames of a running machine, The leaf spring of the arch shape is returned to the horizontal shape or the home position by the impact force acting under the frame, and the rolling motion of the wheel rotatably installed at one end of the leaf spring is added, It is possible to smoothly absorb and remove the impact force generated by the walking movement, thereby preventing the user from being excessively moved to the joints of the legs in addition to the interlayer noise caused by noise, vibration, and sound.

In addition, in the present invention, by forming a plurality of adjustment holes for adjusting the installation length of the leaf spring according to the weight of the user on the other side of the plate spring formed in an arch shape as described above, By adjusting the length of the leaf spring to be adjusted according to the body weight, the impact force generated by the user can be absorbed and removed in a more stable state. There are other purposes to prevent such a situation.

In addition, in the present invention, concave wheel grooves for engaging the wheels are formed at one end of the plate spring formed in an arch shape as described above, and at the same time, The coil spring and the wheel are separately installed at the lower end of the frame by welding or fixing the fastening ring body to support the coupling bolt fastened with the fastening nut in order to smoothly rotate the wheel. The overall structure is simple, the assemblability is also simple, and the economical burden thereof is also lowered.

In order to achieve the above object, the present invention provides a running machine comprising: a running belt connected between a driving roller and a driven roller which are spaced apart from both sides of a frame; A running belt installed between an upper portion and a lower portion of the running belt and rotated by motor driving, and a deck plate for supporting a weight of the user; And a control panel installed at one upper end of the frame with a handle to set a running or walking speed of the user himself or herself and displaying a motion state of the user, An arc-shaped leaf spring is bolted to the lower end of the frame to absorb and remove the impact force, and a wheel is rotatably fixed to one end of the leaf spring, so that the impact force acting under the frame when the user is running or walking The spring force of the arc-shaped plate spring is restored to the horizontal or in-position, and the rolling motion of the wheel pivotally connected to one end of the leaf spring is interlocked to absorb the impact force.

According to the present invention, an arc-shaped leaf spring is elastically deformed to return to a horizontal shape or an original position by impact force acting under the frame when the user is running or walking, and is rotatably installed at one end of the leaf spring It is combined with the rolling motion of the wheels to smoothly absorb and remove the impact force generated by the running or walking movement of the user while preventing intermittent noise caused by noise, vibration, And the like.

In addition, by forming a plurality of adjustment holes for adjusting the installation length of the leaf spring according to the weight of the user on the other side of the plate spring formed in an arch shape as described above, the weight of the user By adjusting the length of the plate spring to be extended or shortened, it is possible to absorb the impact force generated by the user in a more stable state, thereby preventing the impact force from being concentrated in one place of the leaf spring regardless of the user's weight change There is also the effect of being able to.

In addition, a concave wheel groove for fitting the wheel into the one end of the plate spring formed in an arch shape as described above is formed, and at the same time, In the conventional method in which a coil spring and a wheel, which are shock-preventing means, are separately provided at the lower end of the frame by welding or fastening the fastening ring body for supporting the coupling bolts to be fastened with the nuts, The overall structure is simple, the assemblability is simple, and the economic burden can be reduced.

1 is a perspective view schematically showing a running machine to which an impact preventing means of the present invention is applied;
2 is an exploded perspective view of the impact preventing means of the present invention.
3 is an assembled cross-sectional view of the impact-preventing means of the present invention.
4A and 4B are operational state diagrams of the impact preventing means of the running machine of the present invention.

A treadmill (hereinafter referred to as a running machine) equipped with an impact preventing means of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a perspective view schematically showing a running machine to which the impact preventing means of the present invention is applied, Fig. 2 is an exploded perspective view of the impact preventing means of the present invention, .

The running machine 1 of the present invention has the same structure as that of a running machine of a conventional structure, that is, a drive roller 12 and a driven roller 14 which are spaced before and after the frame 10, A wide running belt 20 connected between the belt 20 and the belt 20; A running belt 20 installed between the upper and lower portions of the running belt 20 and rotated by driving of the motor 16 and a deck plate 30 supporting the user's body weight; And a control panel 6 installed at one end of the frame 10 together with the handle 5 to set the running or running speed of the user himself or herself and to display the motion state of the user. (Not shown) of the motor 16 to rotate the running belt 20, and the motor 16 is rotated by a controller (not shown) having a speed controller .

Here, in the case of the running belt 20, the drive roller 12, the driven roller 14, the motor 16, the control panel 6, and the controller, the present applicant As described in the patented "deck plate for running machine (Patent Registration No. 10-1281963) ", the running belt 20 and the drive roller 12, which are components of a conventional running machine, The motor 16, the control panel 6, and the controller, and has a general structure that is commonly used. Therefore, a detailed description thereof will be omitted.

The deck plate 30 applied to the treadmill 1 of the present invention is also made of the same structure and materials as the patented "deck plate for treadmill (Patent Registration No. 10-1281963)" of the present applicant A detailed description thereof will be omitted and a detailed description of the deck plate for a running machine will be omitted. Hereinafter, a description will be given of a shock absorber for smoothly absorbing and removing an impact force generated through a running or walking motion of a user Only the means 40 will be described in detail.

As shown in FIGS. 2 and 3, the shock-preventing means 40 of the present invention has an arch-shaped structure at the lower end of the frame 10 to absorb impact force generated through a running or walking movement of the user And the wheel 46 is rotatably fixed to one end of the leaf spring 41 so that the leaf spring 41 is fixed to the lower side of the frame 10 during the running or walking movement of the user The plate spring 41 in the form of an arch is returned to the horizontal or inward position by the impact force applied thereto. That is, the action of the impact force and the return direction are elastically deformed in the radial direction of the arch shape, , The rolling motion of the wheel 46 rotatably provided at one end of the swinging wheel 46 is interlocked before and after the swinging motion of the wheel 46, Is less noise than the conventional method using a tension spring and absorbs the impact force generated by the running or walking movement of the user more smoothly and smoothly so that noise such as noise due to noise, vibration, sounding, It has a technical feature that prevents the joint from becoming unbalanced.

In addition, on the other side of the plate spring 41 formed in an arch shape as described above, a plurality of adjustment holes 42 for adjusting the installation length of the leaf spring 41 are formed in accordance with the weight of the user, The user adjusts the length of the leaf spring 41 according to the weight of the user when the weight of the user changes according to the age of the user, thereby absorbing and removing the impact force generated by the user in a more stable state, It is possible to prevent the impact force from being concentrated in one place of the leaf spring 41. [

At one end of the leaf spring 41 is formed a concave wheel groove 43 for fitting the wheel 46 into the wheel groove 43, The fastening ring body 44 is fixed to support the fastening bolt 45a fastened to the fastening nut 45b in a state of passing through the fastening pipe 46 so as to smoothly rotate the wheel 46. At this time, In the case of the fastening ring body 44, a separate circular ring body may be prepared and welded to both ends of the wheel grooves 43, or both ends of the wheel grooves 43 may be circularly bent to be integrally formed When the fastening ring body 44 is welded to the bottom surfaces of the both ends of the wheel groove 43 or the ring is banded in a circular shape, the wheel 46 is fixed to the fastening ring body 44 through the fastening bolt 45a and the fastening ring body 44 And the nut 45b is fastened to the plate spring 41, Since the plate spring 41 having the wheel 46 fixed thereto is bolted to the lower end of the frame 10 with one structure as described above, Compared to a conventional treadmill having a coil spring and a transfer wheel 46 separated from each other in configuration, the overall structure is simple, the assemblability is simple, and the economic burden is greatly reduced.

In the case of the leaf spring 41, as described above, it is preferable to use a material property of an elastic force for use as an impact preventing means 40 for absorbing and removing an impact force acting under the frame 10 during a running or walking movement of the user The leaf spring 41 has a high elastic limit and is resistant to impact and fatigue. In order to mitigate abrupt vibration and accumulate energy, the leaf spring 41 does not cause permanent deformation during use and has a spring hardness of not less than HB 340 It is made of spring steel (SPS) or SK 5 material which can be used as a spring, and heat treated with hardness of 45-48 so that it does not warp and warp.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the operation of the impact preventing unit 40 of the treadmill 1 of the present invention will be described in detail with reference to the accompanying drawings.

4A and 4B show operational states of the impact preventing means of the running machine of the present invention.

First, when the power supply switch (not shown) of the running machine 1 to which the shock protection means 40 of the present invention is applied is turned on to receive power and the motor 16 is driven, A running belt 20 sandwiched between the driving roller 12 and the driven roller 14 together with the rotation of the driving roller 12 axially coupled to the motor 16 is wound around the deck plate 30 And a load caused by repeated running or walking movement of the user, that is, a shock caused by the user's running, such as running or walking while the user steps on the rotating running belt 20, And is transmitted to the frame 10 through the plate 30.

The impact force transmitted to the frame 10 is transmitted to the frame 10 through the impact preventing means 40 as a final position where the bolt is fixed to the lower end of the frame 10, The shock absorbing means 40 acts on the impact preventing means 40 composed of a single structure such that the wheels 46 are rotatably fixed through the fastening of the engaging nuts 45b. The leaf spring 40 is deformed into a horizontal shape by an action of the impact force and then is elastically deformed to return to its original position. At the same time, as shown in FIG. 4B, The rolling motion of the wheel 46 is interlocked with the elastic deformation length of the leaf spring 41 such that the rolling motion of the wheel 46 is rotated to be moved 1 to 2 cm before and after the wheel 46 is rotated. exercise It is possible to prevent the user from knocking on the joints of the legs such as the knees or the ankles in addition to the interlayer noise due to the noise, vibration, sound and the like.

In addition, the bolts are fixed to the lower end of the frame 10 through a plurality of adjustment holes 42 formed in a row on the other side of the plate spring 41 formed in an arch shape as described above, 41 can be adjusted by adjusting the length of the plate spring 41 by using the adjustment hole 42 in accordance with the weight of the user when the weight of the user changes according to the sex of the user, So that the impact force generated by the user can be absorbed and removed in a more stable state through the operation, and the impact force can be prevented from being concentrated in one place of the leaf spring 41 regardless of the weight change of the user.

Although the preferred embodiments of the present invention have been described for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. .

1. Running Machine 5. Handle
6. Control Panel 10. Frame
12. Drive roller 14. Driven roller
16. Motor 20. Running Belt
30. Deck plate 40. Impact prevention means
41. Plate spring 42. Adjusting hole
43. Wheel groove 44. Clamping ring body
45a. The coupling bolt 45b. Coupling nut
46. Wheels

Claims (3)

A running belt (20) connected between the driven roller (14) and the drive roller (12) spaced on both sides before and after the frame (10); A running belt 20 installed between the upper and lower portions of the running belt 20 and rotated by driving of the motor 16 and a deck plate 30 supporting the user's body weight; And a control panel (6) installed at one upper end of the frame (10) together with a handle (5) for setting the running or running speed of the user himself or herself and displaying the motion state of the user ,
A plate spring 41 having an arch shape is bolted to a lower end of the frame 10 in order to absorb and remove an impact force generated by a user's running or walking motion, The leaf spring 41 of the arch shape is returned to the horizontal shape or the home position by the impact force acting under the frame 10 during the running or walking movement of the user, Characterized in that the rolling motion of the wheel (46) rotatably provided at one end of the leaf spring (41) is interlocked to absorb the impact force. 2. The apparatus according to claim 1, wherein a plurality of adjustment holes (42) are formed on the other side of the leaf spring (41) to adjust the installation length of the leaf spring (41) A treadmill. [3] The apparatus according to claim 1, wherein a wheel groove (43) of a concave shape is formed at one end of the leaf spring (41) for fitting a wheel (46)
In order to smoothly rotate the wheel 46 by supporting the coupling bolts 45a fastened to the coupling nut 45b in a state where the wheels 46 penetrate the bottom surfaces of both ends of the wheel groove 43, Characterized in that the fastening ring body (44) is welded or banded.
KR1020140028240A 2014-03-11 2014-03-11 The treadmill for with to impact prevent means KR20150106131A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101991205B1 (en) 2018-11-15 2019-06-19 박재준 A treadmill having a support unit with improved installation and buffering efficiency
US11458356B2 (en) 2020-02-14 2022-10-04 Life Fitness, Llc Systems and methods for adjusting a stiffness of fitness machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101991205B1 (en) 2018-11-15 2019-06-19 박재준 A treadmill having a support unit with improved installation and buffering efficiency
US11458356B2 (en) 2020-02-14 2022-10-04 Life Fitness, Llc Systems and methods for adjusting a stiffness of fitness machines

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