KR20070082277A - Foot input type device of treadmill and treadmill having same - Google Patents

Abstract

A foot driving type signal input device of a treadmill and a treadmill having the same are provided to allow input of prescribed signals into the treadmill through a foot driving including mounting on/off the track belt or leaning to one side without manipulation using a hand. A foot driving type signal input device of a treadmill includes more than one of load sensor(160,170,180,190) established on more than one site of the track belt including the front, rear, left, or right side, which are able to detect mounting on/off the track belt or leaning to one side and to recognize them as prescribed driving signals including start or stop of the track belt, increasing or decreasing the speed of track belt movement, and controlling of slope degree of the track belt and to execute the signals.

Description

Foot driven input mechanism of treadmill and treadmill equipped with it {FOOT INPUT TYPE DEVICE OF TREADMILL AND TREADMILL HAVING SAME}

1 is a perspective view showing the configuration of a treadmill according to an embodiment of the present invention

Figure 2 is an exploded perspective view of the track portion of Figure 1

3 is an enlarged view of portion 'A' of FIG.

4 is an enlarged view of the rear load sensor module of FIG.

5 is a perspective view of the track portion from which the track belt of FIG. 1 is removed from the bottom;

Figure 6 is an enlarged view of the right load sensor module of Figure 5

Figure 7 is an enlarged view of the rear load sensor module of Figure 5

Fig. 8 is a schematic plan view showing a state where a load sensor is installed around the track belt;

9 is a control circuit diagram using the load sensor of FIG.

10 is a flow chart for explaining the operating principle of FIG.

** Description of symbols for the main parts of the drawing **

100: treadmill 110: track portion

111: track belt 112: drive roller

112a: drive portion 113: deck

114: frame 114a: deck support

115: dustproof rubber 116: deco cover

117: support roller 117a: inclined support member

118: support 120: control panel

121: control panel 122: handle

123: horizontal support 124: connecting member

160: right load sensor module 161: coupling member

161a: fastening hole 162: bending member

162a: fastening hole 162b: through hole

163: right load sensor 164: right load sensor

170: left load sensor module 171: coupling member

171a: fastening hole 172: bending member

172a: fastener 172b: through hole

173: left load sensor 174: left load sensor

180: front load sensor module 180: coupling member

181a: fastening hole 182: bending member

182a: fastening hole 182b: through hole

183: front load sensor 184: front load sensor

190: rear load sensor module 191: coupling member

191a: fastening hole 192: bending member

192a: fastening hole 192b: through hole

193: right load sensor 194: rear load sensor

R6: Left load sensor resistance value R7: Right load sensor resistance value

R8: Front load sensor resistance value R9: Rear load sensor resistance value

168: first contact 169: second contact

188: first contact 189: second contact

ΔV: Bridge voltage difference ΔVref: Reference bridge voltage difference

△ Vset: Setting bridge voltage difference

The present invention relates to a treadmill's foot drive input device and a treadmill having the same, and more particularly, a predetermined command to a treadmill by foot drive without a user's input using a hand while walking or running on a track belt. It relates to a treadmill drive input mechanism and a treadmill provided with the same.

The treadmill is a treadmill, which is called a treadmill, and is widely used in homes and sports centers because it can bring a walking or running effect in a narrow space by using a belt that rotates in an infinite track. Treadmills can walk or run indoors at a moderate temperature even in winter, and the running speed can be arbitrarily adjusted, so the demand is increasing day by day.

In general, a user performs a walking or running exercise by changing a walking speed or running speed according to a taste in order to alleviate the boredom of the exercise during a walking or running exercise using a treadmill. Since the adjustment of the walking belt speed or inclination has to be manipulated by hand, it is not only cumbersome but also causes a problem that the balance is disturbed during exercise.

In addition, when the movement speed of the track belt of the treadmill is manipulated by a predetermined program, the walking or running speed is adjusted according to the user's physical condition or condition due to the restriction of exercising according to the uniformly programmed speed and inclination. There was a problem that forced or inefficient exercise is not forced.

Therefore, in order to provide the convenience of the user's walking or running movement, the necessity of a means for adjusting the movement conditions such as the movement speed or the slope of the track belt by inputting a predetermined signal without the user's hand operation while exercising on the treadmill This is emerging.

The present invention has been made to solve the above problems, the user does not input by hand while walking or running on the track belt, the treadmill is controlled by inputting a predetermined signal to the treadmill through the foot drive. It is an object of the present invention to provide a treadmill capable of actuating an input device and a treadmill having the same.

Further, another object of the present invention is to make it possible to manufacture a treadmill foot driven input device at low cost.

In addition, the present invention provides a treadmill input mechanism that senses the position of the user on the track belt using a load sensor and recognizes the user as a predetermined input signal when it is determined that the user is biased to one side of the track belt. For other purposes.

In addition, the present invention is to provide a stable foot-driven input mechanism to the user by preventing the treadmill is controlled irrespective of the user's intention by being input with a predetermined input signal overly sensitive to the user's position on the track belt Do it.

In addition, an object of the present invention is to provide a treadmill that allows a desired input by a user's intention by foot drive even if the control panel formed on the front surface of the track belt is generally removed.

In order to achieve the above object, the present invention provides a treadmill having a track belt that rotates in an infinite track, comprising: a load sensor for detecting that a user has climbed on the track belt; Including, when the user climbs on the track belt provides a foot-driven input mechanism of the treadmill, characterized in that recognized as an input signal driven by the track belt.

This means that even if the user does not perform a separate operation, the user recognizes that the user climbs on the track belt as a drive control signal of the track belt, so that when the user climbs on the track belt, the track belt starts to be driven automatically, and the track This is to allow the track belt to automatically stop running when descending from the belt.

In addition, the present invention, a treadmill having a track belt that rotates in an endless track, a load sensor for detecting that the user is biased to one side of the track belt by the foot drive during the movement in the track belt; And a treadmill driven input device, characterized in that the user recognizes the treadmill as an input signal by being biased at one side of the track belt.

This allows the user to walk or run on one side of the front, rear, left, and right of the track belt while walking or running on the track belt. Treadmill movements such as increasing the speed of the track belt or adjusting the inclination of the track belt even when the user does not operate the control panel by using a hand by recognizing bias or rather strong driving as a control input signal. Conditions can be changed or manipulated. Therefore, the load sensor is installed at any one or more positions of the front, rear, left and right of the track belt.

At this time, the load sensor is disposed so as to be placed between the deck formed to support the user's load between the track belt and the frame for supporting the deck, the user's foot drive load applied to one side of the deck Measure

On the other hand, the present invention, a treadmill having a track belt rotating in an infinite track, the first load sensor provided on one side of the track belt to measure the driving load of the user on the track belt; A second load sensor installed on the other side of the track belt to measure a user's driving load on the track belt; The user senses that the user is biased to one side or the other side of the track belt based on the values measured by the first load sensor and the second load sensor, and the user inputs that the user biases to one side or the other side of the track belt. It provides a treadmill foot-driven input mechanism, characterized in that configured to recognize the control signal of the treadmill.

In this way, the first load sensor and the second load sensor detect that the user biases either one side or the other side of the track belt, and a predetermined control signal is input to the treadmill according to the biased position of the user. At this time, one side or the other side may be the front or rear of the track belt, may be the left or right of the track belt, may be a corner portion such as the front left or rear right of the track belt.

The first load sensor and the second load sensor do not necessarily need to be formed on the track belt alone, and may be simultaneously formed on the front, rear, left, right, front left, rear right, front right and rear left sides of the track belt as necessary. It may be.

Here, the first load sensor and the second load sensor are formed as a load cell to sense the biased position on the user's track belt based on the load value measured by the first load sensor and the second load sensor. Therefore, the first load sensor and the second load sensor formed of the load cell output different voltage values according to the degree of bias of the user to one side or the other side of the track belt, and output the output voltage values to the amplifier and the analog-to-digital converter, respectively. Each load value can be measured via.

For example, when the user is biased on the left side of the track belt, the measured load of the first load sensor formed of a load cell on the left side of the track belt becomes larger in magnitude than the case where the user is located in the center of the track belt. This makes it possible to detect that the user is biased on the left side of the track belt. Similarly, when the user is biased to the right side of the track belt, the measured load of the second load sensor formed of the load cell on the right side of the track belt increases in magnitude as compared to the case where the user is located at the center of the track belt. Can be detected on the right side of the track belt.

In contrast, the first load sensor and the second load sensor may be formed of a strain gauge. At this time, four strain gauges are formed in each of the first load sensor and the second load sensor, and each of the strain gauges may constitute a complete Wheatstone bridge circuit similarly to the load cell, or two in the first load sensor and the second load sensor. Thus, the strain gauge for the first load sensor and the strain gauge for the second load sensor may be combined to form one Wheatstone bridge circuit.

That is, the first load sensor and the second load sensor may be formed of two strain gauges on one side and the other side of the track belt, respectively, and they may form a Wheatstone bridge to determine the position of the user with one bridge voltage difference. . Through this, it is possible to derive the change in the resistance value of the strain gauge measured in four places as one bridge voltage difference, and to detect the user's biased position on the track belt according to the sign and magnitude of the measured bridge voltage difference. .

In more detail, the first load sensor and the second load sensor are formed of two strain gauges, and the strain gauge for the first load sensor (resistance value R1) provided on one side of the track belt and the other side of the track belt are installed. When the strain gauge for second load sensor (resistance value R2) together forms the Wheatstone bridge, and the applied power supply V is supplied to the bridge circuit, the bridge voltage difference ΔV is expressed by the following equation.

Therefore, when the user is biased to one side of the track belt, the R1 value becomes larger, and when the user is biased to the other side of the track belt, the R2 value becomes larger, so that the sign and absolute value of the value of the bridge voltage difference ΔV are increased. By the size of the user can detect whether the user is biased forward or backward, and to what extent. In this way, the user accelerates and decelerates the driving speed of the drive unit which drives the rotation of the track belt by biasing the front, rear, left, right or one side of the diagonal edge of the track belt without using any hands. It is possible to control the movement conditions, such as to adjust the inclination of the track belt.

At this time, the resistance values R1 and R2 of the strain gauge for the first load sensor and the strain gauge for the second load sensor have the same resistance value, so that when the user is located at the front and rear of the track belt, Since the sign is converted, it is preferable in view of ease of control.

In addition, since the bridge voltage difference ΔV of the Wheatstone Bridge increases and decreases in proportion to the degree of bias of the user to one side on the track belt, the control signal of the treadmill is differently proportional to the bridge voltage difference ΔV of the Wheatstone Bridge. You may. For example, if the control flowchart is configured to increase the inclination of the track belt when the user is biased to the left side of the track belt, and to reduce the inclination of the track belt when the user is biased to the right side of the track belt, The greater the leftward bias, the greater the speed of increasing the inclination of the track belt. Through this, even if the speed and the inclination of the track belt is adjusted only by the foot drive, the response speed can be adjusted quickly or slowly, so that the exercise condition can be adjusted in a thrilling or stable manner according to the user's taste.

At this time, as the user sensitively senses that the user is biased to one side of the track belt, the sensitivity is excessively high so that the user does not bias the user to one side or the other side by a predetermined amount on the track belt to prevent malfunction. In this case, it may not be recognized as a predetermined control signal. That is, only when the absolute value of the bridge voltage difference of the Wheatstone bridge is greater than or equal to a predetermined value, it is preferable to recognize the input signal of the treadmill according to the user's driving.

More specifically, after the user starts walking or running on the track belt, the load is measured from the first load sensor and the second load sensor, respectively, without changing the movement conditions of the track belt for a predetermined time. This is averaged and stored as a reference bridge voltage difference (ΔVref), and the user recognizes that the user inputs a predetermined control signal to the treadmill only when the bridge voltage difference (ΔVref) is exceeded during the user's walking or running exercise. do. This is because the running positions on the track belt are different for each user's inclination, so that the movement position according to the user's inclination can be accurately identified initially, and the moving speed of the track belt can be effectively adjusted according to the user's inclination. For example, if a user has a tendency to move in a slightly biased position in the front part of the track belt, even if the user is somewhat inclined in the front part of the track belt, it is already in the reference bridge voltage difference ΔVref. Since the propensity is considered, it is recognized that a predetermined control signal is not input to the treadmill unless the user is further biased toward the front part.

In addition, the first load sensor and the second load sensor between the deck formed to support the load of the user between the track belt, and the frame for supporting the deck to measure the driving load of the user applied to the deck; It is arranged to be placed in.

Through this, when the first load sensor and the second load sensor is formed of a load cell, it is possible to directly measure the driving load between the deck and the frame. In addition, when the first load sensor and the second load sensor are formed of a pair of strain gauges, the strain gauges are side-by-side attached to a bending member protruding so that one side is fixed to the frame and the other side supports the deck. The bending member is deformed according to the transmitted driving load, and thus the resistance value of the strain gauge is changed to detect the user's eccentricity according to the magnitude and sign of the bridge voltage difference.

On the other hand, the present invention, a track belt rotating in an infinite track; A drive unit for rotating the track belt; A foot-driven input mechanism of the treadmill described above; Wherein the first load sensor is installed in front of the track belt, and the second load sensor provides a treadmill installed at the rear of the track belt. At this time, the treadmill is configured to accelerate or decelerate the movement speed of the track belt by the user biasing forward or backward on the track belt.

And, the present invention, a track belt rotating in an infinite track; A drive unit for rotating the track belt; A foot-driven input mechanism of the treadmill described above; And a first load sensor is installed on the left side of the track belt, and the second load sensor provides a treadmill installed on the right side of the track belt. At this time, the treadmill is configured to increase or decrease the inclination of the track belt by the user biasing left or right on the track belt.

That is, the user can increase or decrease the movement speed or the inclination of the track belt only by biasing one side or the other side of the track belt or by driving with a predetermined strength, so that even if there is no control panel disposed in front of the track belt, In addition, it is possible to provide a treadmill that can adjust the exercise conditions as the user intends.

On the other hand, according to another field of the invention, the present invention is a foot-driven input method of the treadmill having a track belt that rotates in an endless track, which measures the load of the user on the track belt on one side and the other side of the track belt, respectively Steps; Determining a biased position of the user on the track belt by comparing load values measured on one side and the other side of the track belt; Recognizing that a control signal is input by the user according to the biased position of the user on the determined track belt; It provides a treadmill driven type input method comprising a.

Here, the step of averaging the measured value by measuring the load on one side and the other side of the track belt for a predetermined time in order to determine the movement tendency of the user; It is preferable to further include.

The control signal is not input by the user within a predetermined range centering on the intermediate portion between the one side and the other side of the track belt, so that a reference position area is not provided as a predetermined control signal on the track belt. Thus, even if the user's position on the track belt is slightly biased, it operates sensitively as a control signal to prevent the treadmill from being controlled contrary to the user's intention.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration of the automatic speed control device of the treadmill according to an embodiment of the present invention.

As shown in the figure, the treadmill 100 equipped with an automatic speed regulating device according to an embodiment of the present invention is a track configured to move the track belt 111 in an endless track for the user to walk or run. The unit 110, a control panel unit 120 for displaying the amount of calories consumed according to the operating speed or the amount of exercise of the track belt 111 at the waist height of the user, and the user who is exercising on the track belt 111 Right and left load sensor modules 160 and 170 which detect the bias of the left and right sides of the belt 111 and the user who is exercising on the track belt 111 are biased forward and backward of the track belt 111. Control unit (not shown) for controlling the moving speed and the slope of the track belt 111 according to the user's bias detected by the front and rear load sensor module (180,190) and the load sensor module (160-190) Including It is composed.

The track unit 110 includes a track belt 111 moving in an infinite track, a driving roller 112 for guiding the movement of the track belt 111 at both ends of the track belt 111, and a driving roller 112. The deck 113 is formed to include a deck 113 formed in a plate shape so as to support a user's weight between the driving unit 112a for driving rotation, the upper and lower portions of the track belt 111, and the user's weight. The frame 114 to contact and support both sides of the deck 113, the anti-vibration rubber 115 is installed to absorb the shock between the deck 113 and the frame 114, and the frame 114 is exposed to the outside Deco cover 116 formed to cover both sides of the frame 114 with a plastic or metal material that enhances the aesthetic so as not to be, the support roller 117 for supporting the front of the treadmill 100, and the rear of the treadmill 100 It is configured to include a support 118 for supporting the part.

Here, the support member 117a to which the support roller 117 is rotatably attached is designed by Wireline, etc., the inventor of the present application, filed on February 26, 2004, and disclosed in "Patent Publication No. 2005-87181." It corresponds to the support member of the reference numeral '151' of FIGS. 9 to 12 of the treadmill actuator for tilt adjustment and the treadmill tilt adjustment mechanism using the same. Therefore, although not shown in the drawings attached to this specification in order to clarify the gist of the present invention, the support member 117 of Figure 1, like the support member 151 of Publication No. 2005-87181, the elastic member ( The inclination adjustment mechanism which controls the inclination of the track belt 111 by 140 is comprised.

And, as shown in Figure 2, the track belt 111 is installed so as to be movable in the infinite track between the drive roller 112, the deck 113 is inserted between the upper and lower surfaces of the track belt 111. . In addition, both sides of the deck 113 supporting the user's weight and exercise shock are supported by a deck support 114a protruding in a 'b' shape from the frame 114. And, between the deck support (114a) and the deck 113, the anti-vibration rubber 115 is installed, to attenuate the impact load of the user to protect the user's knees and the like.

The control panel unit 120 includes a control panel 121 which displays a moving speed, a running moving distance, calories burned, etc. of the track belt 111, and a button for instructing start and stop of a walking or running exercise, and the like; The handle 122 which extends from the lower end of the control panel 121 and protrudes so that the user can hold it during exercise or emergency, and the control panel 121 is vertically fixed upright from the track 110 so that the control panel 121 is installed at the waist level of the user. And a horizontal support 123 connecting between the member 124 and the connecting member 124 to reinforce the lateral rigidity of the connecting member 124.

The right and left load sensor modules 160 and 170 are respectively installed on the left and right sides of the track belt 111 to measure the load transmitted through the deck 113 so that the user biases the left or right side of the track belt 111. Detect. To this end, the right and left load sensor modules 160 and 170 are coupled with the coupling members 161 and 171 protruding laterally from the frame 114, and the coupling members 161 and 171 are coupled to the coupling members 161 and 171 so that the loads from the deck 113 are appropriate. Bending members 162 and 172 formed to an appropriate thickness to cause bending deformation, and strain gauges attached to the bottom surfaces of the bending members 162 and 172 to be bent and deformed together with the bending members 162 and 172 in the elastic region to change their resistance values. 163,164,173,174). At this time, the pair of strain gauges 163 and 164 constituting the right load sensor module 160 and the pair of strain gauges 173 and 174 constituting the left load sensor module 170 are all the same in the absence of deformation amount. Has a value (R6 = R7).

Referring to FIG. 6, the coupling structure of the right load sensor module 160 will be described as an example. Four coupling holes 161a are formed in the coupling member 161, and the bending member 162 overlaps with the coupling member 161. Four fastening holes (not shown) are formed and firmly fixed so that they are integrally deformed by fastening means such as bolts. Further, another through hole 162b of the bending member 162 communicates with a through hole formed in the center of the anti-vibration rubber 115 and is used to fix the anti-vibration rubber 115.

Similarly, the front and rear load sensor modules 180 and 190 are installed at the front and rear of the track belt 111, respectively, and measure the load transmitted through the deck 113, so that the user is placed at the front or rear of the track belt 111. Detect the bias To this end, the front and rear load sensor modules 180 and 190 are coupled with the coupling members 181 and 191 which protrude laterally from the frame 114, and the coupling members 181 and 191, so that an appropriate amount of load is applied by the load from the deck 113. Bending members 182 and 192 formed to an appropriate thickness to cause bending deformation, and strain gauges attached to the bottom surfaces of the bending members 182 and 192 to be bent and deformed together with the bending members 182 and 192 in the elastic region to change their resistance values. 183,184,193,194. At this time, the pair of strain gages 183 and 184 constituting the front load sensor module 180 and the pair of strain gages 193 and 194 forming the rear load sensor module 190 have the same resistance value without any deformation amount. (R8 = R9).

Here, referring to FIG. 7, the rear load sensor module 190 will be described as an example. Four fastening holes 191a are formed in the coupling member 191, and four fastening holes are also formed in the bending member 192 overlapping with the coupling member 191. (Not shown) are formed and firmly fixed so that they are integrally deformed by fastening means such as bolts. Further, another through hole 192b of the bending member 192 communicates with a through hole formed in the center of the anti-vibration rubber 115 and is used to fix the anti-vibration rubber 115.

As shown in Fig. 9, the controller controls a pair of strain gauges 163 and 164 having a value of resistance R6 so as to measure the load on the right side of the track belt 111 and the load on the left side of the track belt 111. A pair of strain gages (173, 174) formed together by a pair of strain gauges (173, 174) having a value of resistance R7 for measurement, and between a right strain gage (163, 164) and a left strain gage (173, 174) of the Wheatstone bridge. An amplifier for amplifying the bridge voltage difference ΔV1 between the first contact 168 and the second contact 169 and a pair of strains having a value of resistance R8 to measure the load in front of the track belt 111. A Wheatstone bridge formed by a pair of strain gauges 193 and 194 having a value of resistance R9 to measure the loads of the gauges 183 and 184 and the rear of the track belt 111, and a front strain gauge 183 of the Wheatstone bridge. 184) and rear strain gauges (193, An amplifier that amplifies the bridge voltage difference ΔV2 between the first contact 188 and the second contact 189 between the first contact point 194 and an analog signal that receives the two amplified signals through different channels and converts the signals into digital signals. It is configured to include a digital converter. Through this, the digital signal converted through the analog-to-digital converter is transmitted to the controller, and based on this, the controller of the treadmill determines whether it is an input signal by the user, and if it is determined by the user, the preset input signal. The control command according to the above is used to adjust the moving speed, the inclination, etc. of the track belt 111.

At this time, when the power supply (POWER SUPPLY) is applied to the Wheatstone bridge, the bridge voltage difference (ΔV1, △ V2) between the first contact (168,188) and the second contact (169,189) is And (3).

Therefore, when the user is biased toward any one of the front, rear, left, and right of the track belt 111, or the user intentionally strongly drives the foot, the strain gauge installed at the biased side is not strained at the side where the resistance value is not biased. Since the gauge is larger than the resistance of the gauge, the signs of DELTA V1 and DELTA V2 vary depending on the direction in which the user is eccentric. Also, as the biasing to one side becomes larger or the driving intensity increases, the resistance value of the strain gauge on the biased side becomes larger, whereas the resistance value of the strain gauge that is not biased becomes relatively smaller, so that the bias value In proportion, the absolute values of DELTA V1 and DELTA V2 change. Accordingly, the treadmill driven input device according to one embodiment of the present invention is configured to input to the controller of the treadmill with different control signals according to the magnitude of the sign and absolute value of ΔV1 and ΔV2.

At this time, in view of the walking or running movement pattern of the user, since the bridge voltage difference ΔV forms a waveform of a constant period, the bridge voltage difference Δ in determining the increase or decrease of the bridge voltage difference ΔV. It is preferable to determine whether the user is biased toward one side of the track belt 111 based on the root mean square (RMS) value of V).

In addition, when the bridge voltage difference ΔV1, ΔV2 between the first contact 168, 188 and the second contact 169, 189 is greater than a predetermined value, the controller may control the track belt 111 even if the user does not press a separate start button. ) Is rotationally driven to move on its own. The bridge voltages DELTA V1 and DELTA V2 form waveforms of a constant period during the walking or running movement on the track belt 111. The bridge voltages DELTA V1 and DELTA V2 are constant for a predetermined time. If the waveform of the period is not formed or is close to zero, the user is considered not to be raised on the track belt 111, and the movement of the track belt 111 is stopped. Through this, the user does not input separately to drive the track belt 111, the track belt 111 starts to move automatically even if it just climbs on the track belt 111, the user separately track belt 111 Even if the user only comes down from the track belt 111 without a separate operation to stop the movement of the track belt 111, the movement of the track belt 111 stops by itself, thereby greatly increasing the user's convenience.

Hereinafter, with reference to Figure 10 will be described in detail the operating principle of the foot-driven input mechanism of the treadmill 100 according to an embodiment of the present invention configured as described above.

When the position on the user's track belt 111 is out of order, it is converted into the bridge voltage difference ΔV and input to the controller as an initial setting value ΔVset. As shown in Fig. 10, it is recognized as an input control signal only when the magnitude of the absolute values of the bridge voltage differences DELTA V1 and DELTA V2 exceeds the magnitude of the absolute values of the reference voltage differences DELTA Vref1 and DELTA Vref2. In this case, the initial set value? Vset may be set to zero.

When the user ascends over the track belt 111, the bridge voltage difference ΔV1, ΔV2 of the graystone bridge circuit by the load module 160-190 is changed (S1), and the bridge voltage difference according to the weight of the user. When (ΔV1, ΔV2) fluctuates by more than a predetermined value, the control unit drives the drive unit 112a to start moving the track belt 111 slowly forward (S2). At this time, the track belt 111 is slowly accelerated to the speed of 4.0km / h, the speed of walking the housewife in the fifties with ordinary attention casually (S3).

Then, when the movement speed of the track belt 111 reaches 4.0 km / h, the front, rear, left, and right sides of the track belt 111 are not accelerated or decelerated for about 10 seconds. Each load is measured with a load sensor module 160-190. Through this, the user who is currently running on the track belt 111 determines which position on the track belt 111 has a tendency to run. Specifically, the average values of the bridge voltages DELTA V1 and DELTA V2 of the Wheatstone bridge circuit shown in Fig. 9 are calculated and stored as acceleration / deceleration reference bridge voltages DELTA Vref1 and DELTA Vref2 for about 10 seconds after the start of the exercise ( S4). That is, the reference bridge voltage differences DELTA Vref1 and DELTA Vref2 are for setting the reference position areas which are not inputted as predetermined control signals on the track belt 111 of the user.

Then, when the user runs faster and the user's body is biased on either side of the front, rear, left and right of the track belt 111, the strain gauges of the load measuring module 160-190 from the strain gauge R6, R7 , R8 and R9 are measured to calculate the bridge voltage differences DELTA V1 and DELTA V2 (S5 and S6). At this time, since the bending member (for example, 162) on the side biased by the user is more generated than the bending member 172 installed on the opposite side, the resistance value R6 of the strain gauges 163 and 164 on the side biased by the user is generated. ) Increases, whereas the bending member 172 provided on the opposite side hardly undergoes bending deformation, so that the resistance value R7 of the opposite strain gauges 173 and 174 hardly changes. Accordingly, according to equation (2), ΔV1 has a sign of (+), and as the user moves to one side of the track belt 111, its absolute value increases. At this time, the absolute value of the bridge voltage difference ΔV1 is the difference between the absolute values of the reference bridge voltage difference ΔVref1 and the absolute value of the initial setting value ΔVset (eg, '0'). In the case of exceeding (S7, S10), since the degree to which the user is biased toward one side is more than the degree set by the initial setting value ΔVset, the first input signal or the second input signal according to the direction of the user's bias. As a result, the controller recognizes (S8, S11) and performs a preset control command according to the first input signal or the second input signal (S9, S12).

For example, when the user is biased to the left side of the track belt 111, the inclination of the track belt 111 is increased, and when the user is biased to the right of the track belt 111, the inclination of the track belt 111 is lowered. If it is set in advance, when the user is biased to the right on the track belt 111 to extend the stretching member 140 of the Patent Publication No. 2005-87181 to increase the inclination of the track belt 111 by the first input signal Drive is performed. In addition, when the user is biased forward of the track belt 111, the movement speed of the track belt 111 is increased, and when the user is biased backward of the track belt 111, the movement speed of the track belt 111 is lowered. If it is set in advance, when the user is biased forward on the track belt 111, the drive to accelerate the drive unit 112a for rotationally driving the track belt 111 is performed by the second input signal.

At this time, the greater the degree that the user deviates from the reference position region of the track belt 111, the greater the magnitude of the absolute values of the bridge voltage differences DELTA V1 and DELTA V2, and thus the bridge voltage differences DELTA V1 and DELTA V2. In accordance with the magnitude of the absolute value of the expansion and contraction of the stretching member 140, it is preferable to adjust the rate of change to add or subtract the drive (112a). In this way, even if a control command for adjusting the movement speed of the track belt 111 is input through the foot drive, the response speed is changed according to the user's taste, thereby allowing walking or running to suit the taste.

The input of the control signal through the foot drive in the track belt 111 continues until the user's walking or running movement is finished. It may be determined whether the end button is input (S13), and there is no change in the bridge voltage difference ΔV1, ΔV2 or the bridge voltage difference ΔV1, ΔV2 for a predetermined time (eg, 10 seconds). In the case of approaching zero (S14), the movement of the track belt 111 is stopped.

Although the preferred embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these specific embodiments, and may be appropriately changed within the scope described in the claims.

As described above, the present invention provides a treadmill having a track belt rotating in an endless track, comprising: a load sensor for sensing that a user has climbed on the track belt; Including, when the user climbs on the track belt by recognizing it as an input signal driven by the track belt, the track belt starts to move by itself without a separate switching operation to start the walking or running movement, the user A treadmill driven input device and a treadmill having the same are provided to facilitate the use of the treadmill and to facilitate the use by those unfamiliar with the operation of the machine.

In addition, the present invention, a treadmill having a track belt that rotates in an endless track, a load sensor for detecting that the user is biased to one side of the track belt by the foot drive during the movement in the track belt; Including a treadmill driven input device and a treadmill having a treadmill capable of controlling the treadmill by inputting a predetermined control signal through only the foot drive without using the hand while the user walks or runs on the track belt. To provide.

In addition, the present invention by attaching a low-cost strain gauge to detect the foot drive or bias of the user can be manufactured inexpensively manufactured foot-driven input device of the treadmill.

In addition, the present invention recognizes that a control signal is not input by a user within a predetermined range centering on an intermediate portion between the one side and the other side of the track belt, and thus the reference is not input as a predetermined control signal on the track belt. By placing the location area, even a slight deviation of the user's position on the track belt acts as a control signal, preventing the treadmill from being controlled contrary to the user's intention.

This allows the user to input a control signal for manipulating the treadmill's motion conditions during exercise even when the user removes the control panel located in front of the track belt so as to manipulate the treadmill's motion conditions with the user's hands. do.

Claims (16)

A treadmill having a track belt that rotates in an infinite track, A load sensor for detecting that the user is biased to one side of the track belt by the foot drive during the movement in the track belt; And a treadmill driven input device, wherein the treadmill is recognized as an input signal of the treadmill by being biased by one side of the track belt. The method of claim 1, The load sensor is a foot-driven input mechanism of the treadmill, characterized in that installed in any one or more positions of the front, rear, left, right of the track belt. The method according to claim 1 or 2, A deck formed to support a load of a user between the track belts; A frame supporting the deck; And the load sensor is disposed so as to be placed between the deck and the frame to measure a user's driving load applied to the deck. A treadmill having a track belt that rotates in an infinite track, A first load sensor installed on one side of the track belt to measure a driving load of the user on the track belt; A second load sensor installed on the other side of the track belt to measure the driving load of the user on the track belt; The user detects that the user is biased at one side or the other side of the track belt based on the values measured by the first load sensor and the second load sensor, and the user inputs that the user biases at one side or the other side of the track belt. Treadmill foot-driven input mechanism, characterized in that configured to recognize the control signal of the treadmill. The method of claim 4, wherein And said first load sensor and said second load sensor are formed of a load cell. The method of claim 4, wherein The first load sensor and the second load sensor are each formed of two strain gauges having the same resistance value; The two first load sensors and the two second load sensors together form a Wheatstone bridge; Measuring the bridge voltage difference between the first load sensor and the second load sensor to detect whether the user is biased on one side or the other side of the track belt according to the measured bridge voltage difference Input appliance. The method of claim 6, And a treadmill input signal according to a user's foot drive only when the absolute value of the bridge voltage difference of the Wheatstone bridge is greater than or equal to a predetermined value. The method of claim 4, wherein A deck formed to support a load of a user between the track belts; A frame supporting the deck; And the first load sensor and the second load sensor are disposed so as to be placed between the deck and the frame so as to measure the footing load of the user applied to the deck. . A track belt rotating in a caterpillar; A drive unit for rotating the track belt; A treadmill driven input device according to any one of claims 4 to 8; And the first load sensor is installed at the front of the track belt, and the second load sensor is installed at the rear of the track belt. The method of claim 9, A treadmill, configured to accelerate or decelerate the movement speed of the track belt by the user biasing forward or backward on the track belt. A track belt rotating in a caterpillar; A drive unit for rotating the track belt; A treadmill driven input device according to any one of claims 4 to 8; And the first load sensor is installed on the left side of the track belt, and the second load sensor is installed on the right side of the track belt. The method of claim 11, A treadmill, configured to increase or decrease the inclination of the track belt by the user biasing left or right on the track belt. A treadmill having a track belt that rotates in an infinite track, A load sensor to sense that a user has climbed on the track belt; And a treadmill driven input device, characterized in that it is recognized as an input signal driven by the track belt when the user climbs on the track belt. An actuating input method of a treadmill having a track belt rotating in an endless track, Measuring a load of a user on the track belt at one side and the other side of the track belt, respectively; Determining a biased position of the user on the track belt by comparing load values measured on one side and the other side of the track belt; Recognizing that a control signal is input by the user according to the biased position of the user on the determined track belt; Foot-driven input method of the treadmill, characterized in that configured to include. The method of claim 13, Averaging the measured values by measuring loads on one side and the other side of the track belt for a predetermined time in order to grasp the movement tendency of the user; Foot-driven input method of the treadmill, characterized in that further comprises. The method according to claim 14 or 15, And recognizing that a control signal is not input by a user within a predetermined range centering on an intermediate portion between one side and the other side of the track belt.

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