TWI596324B - Pedal movement signal detection device - Google Patents

Description

Foot pedal motion signal detecting device

The present invention relates to a vehicle-mounted measuring device for a bicycle, and more particularly to a foot pedal motion signal detecting device for measuring the strength and motion trajectory of a pedaling bicycle pedal for use as a sport reference by a rider.

In order to solve the problems of many civilized diseases such as obesity caused by overeating and overnutrition, modern people will adjust their physiology by appropriate exercise to meet their health needs. Among them, exercise bikes can not only improve heart and lung function, but also The exercise of the back muscles, buttocks and lower limbs also has a good effect, so it is quite popular and popular with the likes of sports people.

However, the riding exercise bike must continue to pedal on the pedal to achieve the effect of the exercise. For a long time, it is easy for the rider to cause sports injuries, and the riding efficiency cannot be improved. Therefore, there is a recordable rider. The motion signal of the left and right feet is generated for each exercise condition or motion detection, so that the rider can use the reference information during the exercise, thereby allowing the rider to adjust the exercise habit and improve the ride during the exercise. Various sensing devices for efficiency are produced.

For example, in US Pat. No. 8,011,242 B2, four sensing elements are respectively disposed on both sides of the pedal shaft stator to detect and analyze the force applied by the rider on the bicycle pedal, and the force is distributed on the surface of the bicycle pedal. The force application condition allows the rider to obtain continuous information about the rotation of the whole week to improve the pedaling efficiency of the bicycle to achieve better bicycle exercise effect. In the prior art, since the motion signal detected by the sensing component must be transmitted through the wire and then connected to the other end via the connector, the structure is complicated and the wiring is pulled out by one side of the pedal connected exercise bicycle, causing the wire to be exposed. And it is easy to cause danger, so it is not a good design.

Moreover, this conventional technique places four sensors (up, down, left, and right) on both sides of the stator. When the rider steps on, the pedal rotor does not necessarily step on the sensor, and it is also possible to feel on the pedal. The position between the detector and the sensor, so that the pedaling force sensed by the sensor is not correct, it is not a true pedaling force, so its accuracy is not good.

In the present case, the sleeve is sleeved on the stator with the bearing, and the sleeve is combined with the foot pedal, and is integrated with the foot pedal. When moving, the sensor can be placed on both sides of the sleeve and the foot The pedal is integrated, so that the force of the pedal is directly applied to the sensor on the sleeve by the stator shaft, and the two ends of the stator shaft are coupled with the bearing on the sleeve, and the sleeve is the rotor The thread is combined and the sensor is fixed to both sides of the sleeve, so the pedaling force can be sensed very accurately.

Even the sensor placed on both sides of the sleeve is integrated with the foot pedal, and the control circuit board is designed in the foot pedal to form an integral structure, thereby increasing stability.

Therefore, in view of the shortcomings derived from the above-mentioned conventional technologies and structures, the inventors of the present invention have improved and innovated, and after years of painstaking research, finally successfully developed and completed the pedal motion signal detecting device.

In order to solve the above problems of the prior art, it is an object of the present invention to provide a pedal motion signal detecting apparatus capable of simultaneously measuring a motion signal and a motion trajectory.

In order to solve the above problems of the prior art, it is an object of the present invention to provide a pedal motion signal detecting device designed for a rotor, which is integrally coupled up and down, high accuracy, and without exposed wires.

In order to achieve the above object, the pedal motion signal detecting device of the present invention comprises a pedal, a stator, a sleeve and a control circuit board. The stator has a thread at one end, and the thread locking on the bicycle is connected with the bicycle, and the sleeve is sleeved. The sleeve is disposed at an outer edge of the opposite end of the bicycle, and the sleeve has a bearing at a tail end or both ends thereof for supporting the sleeve to rotate with the stator as an axis, and at least one pressure is disposed at a position intermediate the outer edge of the sleeve a signal connecting device, wherein the outer edge of the sleeve is respectively provided with one or more pressure sensing units on both sides of the pressure signal connecting device, and the pressure sensing units transmit the detected motion signals to the transmission line through the transmission line The pressure signal connecting device, in addition, the sleeve has an external thread with respect to the outer edge of the other end of the bicycle connecting bicycle.

Please refer to Accessories 1~4. Attachment 1 is the pedal of the bicycle. When the rider steps on from the top, when the pedal is stepped at 90 degrees in the attachment 3, the upper surface of the pedal is subjected to the maximum tensile stress (such as Attachment 2). As shown above, when the pedal is stepped at 0 degrees of the attachment 3, the stress is zero, and when the pedal is stepped as 270 degrees of the attachment 3, that is, when the pedal is at the bottom of the pedal, the compressive stress is the greatest.

In addition, when the rider steps on from the top, the pedal is like a swing arm connected to the center of the flywheel. Therefore, if the swing arm length is L, under the action of the pedaling force F, the torque generated is: Torgue=F cos θ= F _y × L

Work done Power=Torgue×ω2

The pedal includes a shaft hole and a receiving groove, the shaft hole is formed at a side edge of the pedal shaft for the sleeve to penetrate and be fixed in the shaft hole, and the inner edge of the shaft hole is provided with The thread corresponding to the external thread of the sleeve allows the sleeve to be locked in the shaft hole, the receiving groove is disposed at the bottom of the pedal, and the receiving groove is inserted into the sleeve and locked When the shaft hole is inside, the outer edge of the sleeve is provided with a pressure signal The receiving slot of the relative position of the connecting device defines a through hole, the control circuit board is as far as the receiving slot, and the control circuit board comprises at least a signal reading unit, a signal processing unit, a track sensing unit, a pressure sensing circuit and a wireless transmission module, the control circuit board is locked and fixed in the accommodating slot, and the signal reading unit is connected to the pressure signal connecting device through the through holes, and transmits the trajectory sensing unit and the pressure sensing The circuit reads the motion signal detected by the pressure signal connecting device and the pressure sensing unit, and the signal processing unit is configured to process the motion signal read by the track sensing unit and the pressure sensing circuit, and transmit the processed motion signal to the wireless signal. The transmission module is transmitted to the display for the rider to use as reference information during exercise.

The stator has an abutting structure on both sides of the sleeve for limiting the sleeve to a fixed position of the outer edge of the stator, wherein the abutting structure can be a stopper or a screw fixed to the stator. element.

In addition, the foot pedal motion signal detecting device of the present invention further includes a power supply device disposed in the receiving slot, the power supply device providing the control circuit board, the signal processing unit, the pressure signal connecting device and the pressure sensing unit The power of work.

1‧‧‧stator

11‧‧‧ thread

12‧‧‧ Positioning axis

121‧‧‧blocks

122‧‧‧Spiral components

2‧‧‧ casing

21‧‧‧ bearing

22‧‧‧ Pressure signal connection device

23‧‧‧ Pressure sensing unit

24‧‧‧ transmission line

25‧‧‧ external thread

26‧‧‧Waterproof rubber ring

3‧‧‧ pedal

31‧‧‧ shaft hole

311‧‧‧ internal thread

32‧‧‧ accommodating slots

321‧‧‧Perforation

322‧‧‧Power supply

4‧‧‧Control circuit board

41‧‧‧Signal reading unit

42‧‧‧Signal Processing Unit

43‧‧‧Track sensing unit

43'‧‧‧Track sensing circuit

44‧‧‧ Pressure sensing circuit

45‧‧‧Wireless Transmission Module

Attachment 1~4 are schematic diagrams of the stress state and stress angle of the bicycle pedal and the tensile stress and contraction stress; FIG. 1 is a perspective view of the present invention; FIG. 2 is an exploded view of the present invention; BRIEF DESCRIPTION OF THE DRAWINGS FIG. 4 is a perspective view of a perspective view of a pedal of the present invention; FIG. 5 is a side cross-sectional view of the pedal of the present invention; 6 is a block diagram of a control circuit board of the present invention; and FIG. 7 is a side cross-sectional view of the present invention.

The specific embodiments are described below to illustrate the embodiments of the present invention, but are not intended to limit the scope of the present invention to be protected: Referring to Figures 1 to 6, the pedal 3 motion signal detecting apparatus of the present invention includes a stator 1 a sleeve 2, a pedal 3 and a control circuit board 4, one end of the stator 1 has a thread 11 connected to the exercise bike, and the other end of the stator 1 connected to the exercise bike is a positioning shaft 12, the positioning shaft 12 is adjacent to one end of the exercise bike and has a stopper 121. The positioning shaft 12 is remote from the one end of the exercise bicycle, and has a screwing member 122. The sleeve 2 is sleeved on the outer edge of the positioning shaft 12, and Located between the block 121 and the screwing member 122, the sleeve 2 has a bearing 21 at each end thereof, and the position ring in the middle of the outer edge of the sleeve 2 is provided with at least one pressure signal connecting device 22, One or more pressure sensing units 23 are respectively disposed on the outer edges of the sleeve 2 on the two sides of the pressure signal connecting device 22, and the pressure sensing units 23 transmit the detected motion signals to the pressure by the transmission line 24. Signal connection device 22, the pressure signal connection device 22 is a 1/2 circle, 1/3 of the ring or a ring made of a circuit board, further, the outside of the sleeve 2 adjacent to one edge of the locking element 25 has an external thread.

The pedal 3 includes a shaft hole 31 and a receiving groove 32. The shaft hole 31 is formed on a side edge of the shaft of the pedal 3. The inner edge of the end of the shaft hole 31 is provided with an internal thread 311, and the sleeve 2 is worn. The accommodating groove 32 is fixed to the bottom of the pedal 3, and the accommodating groove 32 is inserted into the shaft hole 31 corresponding to the sleeve 2, and the accommodating groove 32 is inserted into the shaft hole 31. A punching hole 321 is defined in the outer edge of the sleeve 2 and the pressure signal connecting device 22 is disposed. The control circuit board 4 is locked in the receiving slot 32, and the control circuit board 4 is The signal reading unit 41, the signal processing unit 42, the track sensing unit 43, the track sensing circuit 43', the pressure sensing circuit 44, and a wireless transmission module 45, the control circuit board 4 is locked and fixed to the capacity In the slot 32, the signal reading unit 41 is connected to the pressure signal connecting device 22 through the through holes 321, and the pressure sensing circuit 44 reads the pressure signal connecting device 22 through the signal reading unit 41. The motion sensing unit 43 is directly disposed on the control circuit board 4 and directly processed by the signal processing unit 42. Alternatively, the track sensing unit 43 may be independent of the control circuit. In addition to the board 4, in addition, the accommodating slot 32 has a power supply 322, and the power supply system provides the control circuit board 4, the pressure signal connecting device 22 and the power of the pressure sensing unit 23, and further After the sleeve 2 is inserted into the shaft hole 31, a waterproof rubber ring 26 is looped between the sleeve 2 and the opening of the shaft hole 31 to prevent the pressure signal connecting device 22 and the pressure sensing unit 23 from being damaged by moisture.

Referring to FIGS. 1-7, when the rider is riding an exercise bike, the foot pedal 3 motion signal detecting device of the present invention is connected to the pressure signal connecting device 22 disposed at the middle position of the outer edge of the sleeve 2. And detecting a position change generated by the pedal 3 when the rider steps on the pedal 3 to obtain a motion signal of the spatial angular position of the pedal 3, and the pressure sensing unit 23 disposed on both sides of the pressure signal connecting device 22 through the sleeve 2 A motion signal for detecting a force applied condition of the pedal 3 by the rider is detected. At this time, the pressure sensing unit 23 transmits the detected motion signal of the force applied by the rider to the pedal 3 through the transmission line 24. To the pressure signal connection device 22, the pressure sensing circuit 44 reads the force application condition of the rider pedaling pedal 3 detected by the pressure signal connection device 22 and the pressure sensing unit 23 through the signal reading unit 41, and then the control circuit The track sensing unit 43 and the track sensing circuit 43' of the board 4 and the pedal 3 obtain the motion signal of the spatial angle change position, and then processed by the signal processing unit 42 to obtain the rider's force value and ride. Number of force The value is transmitted to the display (not shown) through the wireless transmission module 45 for the rider to use as reference information during exercise.

As described above, the foot pedal 3 motion signal detecting device of the present invention can simultaneously measure the motion signal and the motion track, and the present invention transmits the track sensing unit 43 and the pressure sense of the control circuit board 4 disposed in the receiving slot 32. The measuring circuit 44 reads the motion signal of the riding force of the rider pedaling pedal 3 and the spatial angular position of the pedal 3 through the signal reading unit 41, and then is processed by the signal processing unit 42 and transmits the processed motion signal to the wireless signal. The transmission module 45 is transmitted to the display, and therefore, the present invention does not have the problem of the prior art wire being exposed.

The detailed description of the preferred embodiments of the present invention is intended to be limited to the scope of the invention, and is not intended to limit the scope of the invention. The patent scope of this case.

1‧‧‧stator

11‧‧‧ thread

122‧‧‧Spiral components

2‧‧‧ casing

21‧‧‧ bearing

22‧‧‧ Pressure signal connection device

23‧‧‧ Pressure sensing unit

24‧‧‧ transmission line

25‧‧‧ external thread

26‧‧‧Waterproof rubber ring

3‧‧‧ pedal

332‧‧‧Power supply

4‧‧‧Control circuit board

41‧‧‧Signal reading unit

Claims (9)

A foot pedal motion signal detecting device is mainly used for detecting a motion signal generated when a rider steps on a pedal of an exercise bicycle, and is transmitted to a display screen for a rider as a reference information during exercise, which includes: a certain child The outer edge of one end of the stator is sleeved with a sleeve, and the outer edge ring of the sleeve is provided with at least one pressure signal connecting device and one or more pressure sensing units; a pedal including a shaft hole and a receiving groove The shaft hole is defined in a side edge of the pedal shaft for the sleeve to be inserted into and fixed in the shaft hole, and an inner edge of the end of the shaft hole has a corresponding thread structure with an outer edge of the end of the sleeve. The accommodating groove is disposed at the bottom of the pedal, and the accommodating groove is inserted into the shaft hole corresponding to the sleeve, and a position of the pressure signal connecting device of the outer edge of the sleeve is opened; a control circuit board, the control circuit The board is fixed in the receiving slot, and the control circuit board is provided with a plurality of signal transmitting units corresponding to the positions of the holes. The foot pedal motion signal detecting device of claim 1, wherein the control circuit board is locked in the receiving slot. The foot pedal motion signal detecting device of claim 1, wherein a tail end of the sleeve is provided with a bearing for the central shaft to penetrate, or a bearing is respectively disposed at two ends of the sleeve for the central shaft to penetrate, To support the sleeve, the stator is rotated about the axis. The foot pedal motion signal detecting device of claim 1, wherein the other end of the stator opposite the sleeve has a thread that can be locked to the bicycle. The foot pedal motion signal detecting device of claim 1, wherein the stator has an abutting structure on both sides of the sleeve for restraining the sleeve at a fixed position of the outer edge of the stator. The foot pedal motion signal detecting device of claim 5, wherein the abutting structure is a stopper or a screwing member locked to the stator. The foot pedal motion signal detecting device of claim 1, further comprising a power supply device disposed in the receiving slot, the power supply device providing the control circuit board, the pressure signal connecting device and the pressure sensing The power of the unit work. The foot pedal motion signal detecting device of claim 1, wherein the control circuit board further comprises a signal processing unit, a track sensing unit, a track sensing circuit, a pressure sensing circuit and a wireless transmission module, the pressure sensing The circuit reads the force applied by the rider pedaling device detected by the pressure signal connection device and the pressure sensing unit through the signal reading unit, and acquires space with the track sensing unit, the track sensing circuit and the pedal of the control circuit board. The motion signal of the angular change position is then processed by the signal processing unit to obtain the rider's force value, and the rider's force value is transmitted to the display screen through the wireless transmission module for the rider As a reference for sports. The foot pedal motion signal detecting device of claim 1, wherein the pressure signal connecting device is sleeved at a position intermediate the outer edge of the sleeve, and the pressure sensing units are disposed on both sides of the pressure signal connecting device. On the outer surface of the sleeve.