KR20190073313A - Rock climbing exercise equipment - Google Patents

Abstract

The present invention relates to a rock climbing exercise equipment, which is easy to install indoor or outdoor by a manual method instead of an electric method by electricity supply, adjusts various angle of a side frame including a belt in a vertical support of a supporting leg part, performs rock climbing and training under the proper slip condition of the belt according to the user′s weight by controlling the rotational speed of the belt where holds are placed, and also easily changes hold position by magnetic force, thereby exercising according to the difficulty level of beginners and skilled people.

Description

Rock climbing exercise equipment

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rock climbing exercise machine, and more particularly, to a rock climbing exercise machine capable of indoor or outdoor installation for rock climbing exercise, Hold position and climbing angle can be easily and safely adjusted by manual method to enjoy the rock climbing movement. Especially, it can be used without electricity and it can be used efficiently and safely To a rock climbing exercise machine.

As we all know, climbing rock climbing requires rock climbing technique, which is accomplished by highly trained and experienced people.

In recent years, artificial rock walls have been built on walls and artificial structures in the shape of rock walls, and various types of holders are attached to the rock walls to provide training places for rock climbing training. Depending on the scale, indoor or outdoor climbing And it is becoming popular as an athletic facility that can improve adaptability to rock walls and train physical strength.

For reference, rock climbing refers to climbing rocks of about 45 ° or more after special training, and is classified into free climbing and artificial climbing.

Free climbing refers to climbing using the uneven parts of the rock wall using hands, feet and other bodies according to the shape of the rock, without using artificial aids. Depending on the shape of the rock, slab climbing, crack climbing, face climbing, Climbing, and overhanging climbing.

Since these artificial rock walls can naturally express the shape of natural rock walls, it is possible to construct artificial rock walls by fixing the hold on a wall of a large building or a certain space among climbing enthusiasts, thereby polishing and training skills necessary for free climbing .

The artificial rock wall installed by climbing enthusiasts as described above has many holders such as a natural hold, a vertical hold, a pocket hold, a power hold, and a pinch hold in combination, and various kinds of equipment such as a rock wall, a seat belt, Training is possible as well as practice in the state equipped.

Therefore, it is difficult to access easily because it requires high level of difficulty and high stamina for the general people to enjoy freely.

Therefore, unlike artificial rock walls, which are mostly used for climbing training and fitness training as described above, the number of exercise machines or facilities using the climbing apparatuses in which the inclination angle is adjusted and the rock wall is circulated is increasing, and such climbing apparatuses can be easily accessed in daily life , And it is designed and used for fitness training with the advantage of being easy to use time.

Therefore, if we look at the source documents for exercise equipment or exercise equipment related to rock climbing, the Korean Registered Utility Model No. 20-0447759 (titled: variable rock climbing exercise equipment using belt rotation, registration date: February 09, 2010 , Hereinafter referred to as "Patent Document 1"), Registered Utility Model No. 20-0250182 (name: Rock climbing machine, filed on September 28, 2001, hereinafter referred to as "Patent Document 2" No. 20-0370509 entitled " Artificial Rock Climbing ", Registered Date: December 06, 2004, hereinafter referred to as Patent Document 3).

Patent Document 1 and Patent Document 2 all relate to a motorized system in which an artificial rock wall, that is, a artificial wall, is rotated at an appropriate speed by a belt-driven drive by a drive motor, and Patent Document 3 discloses a system in which a rotational speed of a belt This is an example of applying the manual method.

As described above, since the drive system using the drive motor must utilize electric power in accordance with the rotational drive of the belt, which is the artificial wall, a separate electric supply facility must be supported, and the rotation of the belt must be controlled by the rotation of the user's belt Since it is necessary to climb while holding each of the holders by hand in accordance with the speed, it is difficult to perform the climbing operation successively to match the rotation speed of the belt, and the gradually descending hold causes the foot, which has been moved from the lowest position, As a result, climbing speed is more difficult to adjust and climbing fun is lost.

In contrast to the above, when the user climbs faster than the rotational speed of the belt, there is a problem in that climbing and exercise effects are halved because the holding time of the hold attached to the belt is not appropriate.

In addition, since the above-described Patent Documents 1 to 3 are applied in a form in which the hold provided on the belt as the artificial wall is simply attached, there is a problem that it takes much time to change the hold position variously according to the degree of difficulty of the user.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide an indoor or outdoor installation for rock climbing exercise, The climbing position and climbing angle can be manually and safely adjusted to enjoy the rock climbing movement. In addition, the climbing can be used without electricity, and can be safely used without noise The present invention relates to a rock climbing exercise machine.

In order to achieve the above object, according to the present invention, there is provided a rock climbing exercise machine comprising: a vertical support having a tapered pin guide hole at a lower side formed with a shaft hole for supporting a central shaft and a shaft support hole; A support leg provided on the front and rear sides of the support so as to support horizontal supports supported on the ground, and a vertical support to be attached to the support; Wherein a pair of fixed blades are formed on the front and rear sides of the base part in such a manner as to be rotatable about a central axis of the base part in a pair, and a shaft hole is formed through the central shaft, A side frame having a long hole and a fixing hole formed therein, a side frame having a plurality of angle adjusting holes arranged at one side of the shaft hole and having an arc-shaped guide hole drilled therein; A belt circulation unit having at least two guide wheels on a rotation axis and a rotation axis, both ends of which are guided so as to be moved up and down, respectively; A hollow quadrangular frame of a metal material provided with hinges connected to hinge axes on both sides in the longitudinal direction and on the lower side in a track form passing through the upper and lower belt circulation parts with respect to the side frames; A plurality of holders which are disposed between the rectangular frame and the rectangular frame of the belt and are fixed to be movable in the lateral direction of the rectangular frame so as to be movable in the longitudinal direction and a plurality of holders provided with magnets magnetically attached to the rectangular frame, Wow; A front guide frame and a rear guide frame fixed to the front and rear fixed wings of the side frame, respectively, and having a U-shaped cross section for guiding both ends of the belt; A rotation speed adjusting unit installed on a front surface of the front guide frame to pressurize both ends of the rectangular frame to limit a rotational speed of the belt relative to the user's body weight; The end portion of the side frame is guided to the angle adjusting hole of the angle adjusting plate through a pin guide hole of the vertical supporting frame which is installed to be vertically movable from the fixing table to be fixed to the vertical supporting frame. A wedge member formed on one side of the pin portion and having a hooking protrusion formed on the pin guide hole for determining an insertion length of the pin portion and an annular handle integrally provided at a rear end of the pin portion; And a compression spring installed on the outer periphery of the wedge member to apply elasticity to the fixing table. The angle of the side frame is determined with respect to the angle adjusting plate side angle adjusting plate side, and an angle guide is fixed to the vertical supporting table And the fastened end thereof is guided by the arc-shaped guide hole to restrict the angle and adjust An angle adjusting unit configured to adjust the angle of view; And a tension regulator installed on the upper and lower fixing holes of the side frame to adjust the rotation axis of the belt circulation unit to circulate the belt through the elongated hole to support and support the belt.

The rotation speed adjusting unit according to the present invention is characterized in that the rotation speed adjusting unit has a cutout portion on the front surface of the front guide frame so that both end portions of the rectangular frame can be seen, And a spring for elastically supporting the pressing plate provided on the supporting screw and protruding forward from the rear of the fixed blade portion of the side frame to the first through hole of the pressing plate, And a knob which is fastened to the fixing screw exposed through the through hole of the pressing plate and adjusts the pressing force of the pressing plate.

A friction pad of a phosphor bronze material is provided on the rear surface of the pressure plate according to the present invention, which is more resistant to sliding than a material of a rectangular frame, and resistant to sliding when pressed.

The rock climbing exercise device according to the present invention can be applied to a variety of angles of the side frame including the belt at the vertical support of the support leg in a passive manner, According to the weight, it is possible to perform rock climbing exercise and training by proper slip condition of the belt, and the position of the hold can be easily changed by the magnetic force, so that it is advantageous to exercise according to the difficulty of the novice and the expert.

1 is a perspective view showing a rock climbing exercise mechanism of the present invention,
2 is a front view showing a rock climbing exercise device according to the present invention,
3 is a side view of a rock climbing exercise device according to the present invention,
FIG. 4 is a front view showing the inside of the exercise machine except for the belt and the guide frame in FIG. 2;
5 is a perspective view showing a connecting portion of the belt according to the present invention,
6 is a side view of a side frame of a fitness instrument according to the present invention,
FIG. 7 is a perspective view illustrating a tension regulator applied to a side frame according to the present invention. FIG.
8 is a side view showing an installation state of the belt using the tension regulator of FIG. 7,
FIG. 9 is a perspective view showing a holder installed on a belt according to the present invention,
10 is a side sectional view showing a state where a holder is applied to a belt according to the present invention,
FIG. 11 is a cross-sectional view taken along line AA of FIG. 2 showing a rotational speed regulating portion of the belt according to the present invention,
FIG. 12 is a side sectional view showing an installation state of the rotation speed regulating portion of FIG. 11,
FIG. 13 is a sectional view taken along the line BB of FIG. 3 showing the angle adjusting unit of the exercise device according to the present invention,
14 and 15 are side cross-sectional views showing a state in which the exercise apparatus according to the present invention is adjusted in an inclined manner.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, 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 not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications may be present.

The rock climbing mechanism 100 according to the present invention includes a vertical support base 12 having a shaft hole 12a for supporting the center shaft 11 and a tapered pin guide hole 12b formed on the lower side where the shaft support hole is formed, A vertical support 12 attached to the horizontal support 14 and a horizontal support 14 supported horizontally on the front and rear sides of the vertical support, A pedestal 10 is constructed on the ground, to which a connecting rod 15 is padded.

The height adjuster 13 is composed of a support plate portion which is in close contact with the paper surface and a screw fastening adjustment bolt which is connected to the support plate portion and is fastened to the horizontal support.

And a pair of side frames 20 rotatable about the central axis 11 are provided on the foot leg portion 10 so as to face each other.

The side frame 20 is formed with a fixed wing portion 21 at its front and rear sides and a shaft hole 22a through which the central shaft 11 is inserted is formed on a side surface 22 connecting the fixed wing portion, And a plurality of angular adjustment holes 23a are arranged on one side where the shaft hole 22a is formed and an arcuate guide hole 23b is formed at an angle An adjustment plate 23 is attached.

Five angle-adjusting holes 23a are formed, and the angle-adjusting ball located at the center can fix the side frame with a vertical angle of 90 degrees, and two angle-adjusting balls on both sides are shown in Figs. 14 and 15 So as to be able to switch to an angle which can be set at an inclined angle. That is, it is possible to adjust the degree of difficulty of the user with respect to the rock wall angle by adjusting the inclination angle to 10 to 15 degrees in the vertical direction.

A belt circulating unit 30 is installed on upper and lower sides of the side frame 20 installed in the upper and lower sides of the side frame 20, At least two guide wheels 32 are provided on the rotary shaft for installing the belt 40, which will be described later.

5, a hollow square frame 42 made of metal and provided with hinge portions 42a connected to hinge shafts 41 on the both sides of the belt 40 in the longitudinal direction, And is disposed in the form of a trajectory via the upper and lower belt circulating portions 30 with respect to the side frame 20.

The belt 40 is provided with a plurality of holders 50 applied to artificial rock climbing and serving as a handle and a footstock, And a magnet 52 attached to at least one of the rear surfaces of the hanger 51 and magnetically attached to the square frame 42. The magnet 52 is mounted on the rear surface of the hanger 51, The magnet (52) is a circular magnet having a hole, and is fastened and fixed to the hanger by a plate head screw, and at least one is provided.

A front guide frame 60 is fixed to the front side fixed wing 21 of the side frame 20 and a rear guide frame 62 is fixed to the rear side fixed wing 21.

The front guide frame 60 and the rear guide frame 62 have a U-shaped cross section so as to guide both ends of the belt 40. The material is made of an ABS resin Extruded frame is applied to the frame.

That is, both ends are guided to the front and rear guide frames, and the belt closely attached to the guide wheel of the belt circulating unit is installed in a structure in which the belt is maintained in a taut state without circling and circulated.

The front face of the front guide frame 60 is provided with a rotation speed regulating portion 70 for restricting the rotational speed of the belt 40. This allows the both ends of the rectangular frame 42 constituting the belt 40 to be pressed So that the speed can be controlled as the rotational friction of the belt relative to the user's body weight.

The rotation speed regulating unit 70 is provided with a cutout 60a so that both ends of the rectangular frame 42 are visible on the front surface of the front guide frame 60. Both sides of the front face are supported by the cutout 60a A pressure plate 72 which is provided so as to be capable of flowing forward and backward by means of a screw 71 and has a first through hole 72a formed on the front surface thereof and a second through hole 72b for mounting the support screw 71, A spring 73 provided on the support screw 71 for elastically supporting the pressure plate 72 and a second through hole 72 formed on the rear side of the stationary vane 21 of the side frame 20, A fixing screw 74 which is installed so as to protrude from the pressing plate 72a and a fixing screw 74 which is exposed through the first through hole 72a of the pressing plate 72 to adjust a pressing force of the pressing plate 72, (75).

A frictional pad 72-1 made of phosphor bronze material is provided on the rear surface of the pressure plate 72 so as to have a sliding resistance against pressing of the material of the rectangular frame 42, This allows friction to be achieved while minimizing wear on both ends of the square frame, thereby controlling the rotation speed of the belt by the slip rotation operation of the belt.

A female screw is provided on the rear surface of the knob 75 so that a screw is fastened to the fixing screw. As shown in FIG. 11 attached to the front surface of the knob, when the knob is basically fastened to the fixing screw, Or an arrow is stamped on the front surface of the platen at the 12 o'clock position where the numeral is located to determine the degree of pressing of the platen and the degree of wear of the back side friction pad 72-1 of the platen have.

On the other hand, the angle adjuster 80 is installed on the vertical support 12 to adjust the angle of the side frame 20 to adjust the angle of the back angle to the level of the user of the belt 40.

13, the angle adjusting unit 80 includes a fixing table 81 fixed to the vertical support table 12 and a vertical support table 12 installed to be movable forward and backward from the fixing table 81, A pin portion 82a whose one end is tapered so as to fix the inclination angle of the side frame 20 by guiding the end to the angle adjusting hole 23a of the angle adjusting plate 23 through the pin guide hole 12b of the pin 20, And a wedge portion 82b formed integrally on the rear end of the fin portion 82a to define an insertion length of the pin portion 82a in the pin guide hole 12b, And a compression spring 83 installed on the outer periphery of the wedge member 82 for applying elasticity to the fixing table 81. The angle adjusting plate 23 has an angle adjusting hole 23a, And an angle guide 84 is formed on one side of the fixing table 81 Is fixed to the vertical support (12), and its fastened end is guided by the arc-shaped guide hole (23b) to adjust the angle by restricting the angle.

The angle guide 84 is formed with a fastening screw portion which is fastened to the vertical support 12 and guided by the arc-shaped guide hole 23b. The arc-shaped guide hole 23b is arranged The angle of the side frame 20 is adjusted so as to correspond to the angle adjusting range of the angle adjusting hole 23a.

The rotary shaft 31 of the belt circulating unit 30 for circulating the belt 40 through the upper and lower fixing holes 12c of the side frame 20 according to the present invention is rotated from the long hole 12b And a tension regulator 90 for adjusting the tension of the belt 40 to keep the belt 40 in tension.

7 and 8, the tension adjuster 90 is provided with guide rails 91a on both sides thereof and a slot 91b coinciding with the slot 12b, And a bearing portion 92a for guiding both sides to the guide rail 91a of the fixing table 91 and supporting the rotation shaft 31 is provided A variable frame 92 provided on one side thereof with a screw connection portion 92b and a screw connection portion 92b of the variable frame 92, (93).

In the figure, reference numeral 12c denotes a fastening hole for mounting the angle guide on the vertical support, reference numeral 60b denotes a U-shaped handle which is attached to the front surface of the front guide frame and used to tilt the side frame obliquely, B denotes a back cover which is attached to the rear surface of the rear guide frame to prevent external exposure of the hold circulating on the belt.

The operation of the rock climbing exercise device of the present invention constructed as described above will be described as follows.

1 and 2, a rock climbing exercise device 100 as shown in FIG. 1 is installed in a state where the belt 40 is vertically or inclined as shown in FIGS. 14 and 15 according to a user's selection, So that it can be used in a state in which the rotational speed of the motor is adjusted.

The angle adjustment is performed in the angle adjusting portion 80 provided in association with the angle adjusting hole 23a of the angle adjusting plate 23 on the side frame 20 side. When the hook adjusting portion 82c is pulled, the wedge member The pin 82a is released from the angle adjusting hole 23a and the compression spring 83 is pressed against the pin guide hole 12b of the vertical support 12. The wedge member 82 Shaped handle 60b provided on the front guide frame 60 and the side frame 20 is rotated to rotate the center shaft 11 in the vertical direction of the vertical support 12 So that it is possible to rotate the pivot shaft 12a as a starting point.

Since the angle of the side frame 21 is guided by the arc-shaped guide hole 23b formed in the angle adjusting plate 23 by the angle guide 84, the angle of the side frame 21 can be unreasonably set within a range The angle of the center axis 11 of the vertical support 12 can be adjusted.

The wedge member 82 is positioned on the angle adjusting hole 23a so that the side frame 20 or the belt 40 can be fixed to the side frame with vertical or inclined and reverse inclination angles.

The wedge member 82 is rotated by the restoring force of the compression spring 83 when the hook handle 82c is placed in the pin guide hole 12b of the vertical support base 12 by the restoring force of the compression spring 83, So that they can be adjusted in such a manner as to correspond to the vertical supports 12 that are mutually corresponding to each other.

When the angle is adjusted as described above, the rotational speed of the belt 40 is adjusted according to the body weight of the user by using the rotational speed adjusting unit 70 provided in the front guide frame 60.

The supporting screw 71 serves to guide the pressing plate 72 forward to both ends of the rectangular frame when the pressing plate 72 is simply pressed to the fixing screw 74 using the knob 75, At this time, the rear side friction pad 72-1 of the pressure plate 72 presses both side surfaces of the rectangular frame 42 guided by the front guide frame so that the user slides on the slip So that the user adjusts the degree of gripping or kicking the hold 50 or the degree of slipping of the belt 40 in the state of lifting the weight.

In the state where the rotation speed of the belt 40 is adjusted as described above, the user can learn the steps of climbing the hold 50 provided with different positions on the belt by hand or by walking with his or her hands.

Here, the belt 40 is slip-rotated with both ends guided by the front guide frame 60 and the rear guide frame 62 fixed to the fixed wing 21 with respect to the side frame 20, and the belt circulating unit 30, The hold 50 is also lowered to the user side from the upper part where the user is climbing, so that the user can perform the continuous climbing motion.

The rock climbing exercise device 100 according to the present invention is adapted to be manually adjusted so that it can be used in a state where the circulation of the belt 40 is stopped depending on the degree of engagement of the knob 75 And holding the hold 50 in a stopped state can be used for providing a learning effect for climbing to a beginner or an expert.

Each of the holders 50 disposed between the square frame 42 and the square frame 42 constituting the belt 40 can be easily changed in accordance with the degree of difficulty of the user, You can exercise with professionalism.

10, the magnet 52 provided on the rear side of the hanger 51 is separated from the front face of the square frame 42 dml w by holding the hold and lifting the holder 50 upward. At this time, when the holder 50 is moved in the required direction or the hook is released from the rectangular frame and the hook 51 is hooked on the square frame 42 at the other position, Is strongly attached to the square frame 42 by magnetic force, and the position thereof can be easily changed.

As described above, the hold 50 set as described above can perform the climbing motion in various climbing postures from the front according to the rotation of the belt 40. When the hold due to the rotation of the belt is moved to the rear side It is possible to prevent the other user who is close to the rear of the exercising apparatus, which is moved by being covered by the back cover B attached to the rear side of the rear guide frame 62, from being caught by the hold and hurt.

The rock climbing exercise machine of the present invention as described above can be used without electric power supply, and it can perform all installation and operation management both indoor and outdoor where exercise facilities are provided. It can also be used for training to learn physical training through exercise and climbing techniques for rock climbing.

As described above, the present invention has been described with reference to particular embodiments, such as specific elements, and specific embodiments and drawings. However, it should be understood that the present invention is not limited to the above- And various modifications and changes may be made thereto by those skilled in the art to which the present invention pertains.

Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

10: foot portion 11: center shaft
12: vertical support 12a: shaft support
12b: pin guide hole 12c: fastening hole
13: height adjuster 14: horizontal support
15: connecting rod 20: side frame
21: fixed wing portion 22: side
22a: shaft hole 22b: long hole
22c: Fixing ball 23: Angle adjusting plate
23a: Angle adjusting ball 23b: Guide ball
30: belt circulating part 31: rotary shaft
32: guide wheel 41: hinge shaft
42: square frame 42a: hinge portion
50: Hold 51: Hook
52: Magnet 60: Front guide frame
62: rear guide frame 60a:
60b: C-shaped handle 70:
71: support screw 72: pressure plate
72-1: Friction pad 73: Spring
74: set screw 75: knob
80: Angle adjusting portion 81:
82: wedge member 83: compression spring
84: Angle guide 90: Tension regulator
100: rock climbing exercise equipment B: back cover

Claims (3)

In a rock climbing exercise machine,
The rock climbing mechanism (100)
A vertical support base 12 provided with a shaft support hole 12a for supporting the center shaft 11 and a tapered pin guide hole 12b formed on the lower side where the shaft support hole is formed and a vertical support base 12 horizontally attached to the lower portion of the vertical support base, A horizontal support 14 supported by the ground is provided with a height adjusting hole 13 and a vertical support 12 attached to the horizontal support 14 is supported by a support 15, (10);
And a fixed wing portion 21 is formed on the front and rear sides of the supporting leg portion 10 so as to be rotatable about the center shaft 11. The fixed wing portion 21 is formed on the side surface 22 connecting the fixed wing portion A shaft hole 22a through which the center shaft 11 is inserted is formed and a long hole 22b and a fixing hole 22c are formed on the upper and lower sides of the shaft hole 22a. A side frame 20 to which an angle adjusting plate 23 having an arc-shaped guide hole 23b formed therein is attached;
A belt circulation unit 30 having a rotation axis 31 guided by the upper and lower elongated holes 22b of the side frame 20 so as to move both ends up and down and at least two guide wheels 32 on the rotation axis, Wow;
A hollow square frame 42 made of metal and provided with a hinge portion 42a connected to the upper and lower sides of the hinge axis 41 on both sides in the longitudinal direction is continuously connected to the upper and lower belt circulation portions (40) installed in the form of an orbit via the belt (30);
A hook 51 which is disposed between the rectangular frame 42 of the belt 40 and the rectangular frame 42 and which is fixed movably to the left and right in the longitudinal direction of the rectangular frame 42; A plurality of holders (50) having at least one magnet (52) magnetically attached to the square frame (42);
A front guide frame 60 and a rear guide frame 62 fixed to the front and rear fixed wings 21 of the side frame 20 and having a U-shaped cross section to guide both ends of the belt 40, and;
A rotation speed regulating unit 70 installed on the front surface of the front guide frame 60 to pressurize both ends of the rectangular frame 42 to restrict the rotation speed of the belt 40 relative to the weight of the user;
The fixing table 81 is mounted on the vertical support 12 and is fixed to the vertical support through the pin guide holes 12b of the vertical support 12, A pin portion 82a having one side tapered to guide the end of the side frame 20 to the angle adjusting hole 23a of the side frame 20 to fix the angle of inclination of the side frame 20, A wedge member 82 composed of a locking protrusion 82b for determining the insertion length of the pin portion 82a and a ring handle 82c integrally provided at the rear end of the pin portion 82a, The angle of the side frame 20 is determined with respect to the angle adjusting hole 23a on the side of the angle adjusting plate 23, An angle guide 84 is fastened to a vertical support on one side of the fixing table 81, The fastening end is guided in the guide hole (23b) of said arc-shaped control configured to adjust the angle of the angle limiting unit 80, and;
The rotary shaft 31 of the belt circulating unit 30 which is respectively installed on the upper and lower fixing holes 12c of the side frame 20 and which circulates the belt 40 is adjusted from the slot 12b, And a tension adjuster (90) for supporting and supporting the rocker. The method according to claim 1,
The rotation speed regulator (70)
The cutout 60a is provided on the front surface of the front guide frame 60 so that both ends of the rectangular frame 42 can be seen. A pressure plate 72 having a first through hole 72a formed on its front surface and a second through hole 72b for mounting the support screw 71,
A spring 73 provided on the supporting screw 71 to elastically support the pressing plate 72,
A fixing screw 74 protruding forward from the rear of the fixed wing 21 of the side frame 20 to the first through hole 72a of the pressure plate 72,
And a knob (75) that is tightened to the fixing screw (74) exposed through the first through hole (72a) of the pressing plate (72) and adjusts the pressing force of the pressing plate (72). 3. The method of claim 2,
Wherein a friction pad (72-1) made of a phosphor bronze material is provided on the rear surface of the pressure plate (72), which is not a material of the rectangular frame (42) and is slip resistant when pressed.

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