JPH0655226B2 - Weight training machine - Google Patents

Description

TECHNICAL FIELD The present invention relates to a detection device for automatically detecting a weight set value of a weight training machine.

(Background Art) Although there is a weight training machine as one of the exercise equipment, the weight detection in the past is visually performed by a human, and if a person wants to input a weight value to a weight display or a computer, the human has to key in. It was very annoying.

(Object of the Invention) The present invention has been proposed in view of the above points, and an object of the present invention is to automatically detect the weight setting of a weight training machine, display the weight, or display it to a computer as necessary. It is to provide a device that can directly input.

DISCLOSURE OF THE INVENTION The present invention will be described in detail below with reference to the drawings illustrating embodiments.

FIG. 1 (a) shows an external configuration of an embodiment of a weight training machine of the present invention. An exerciser lays on a bed 15, holds the lifting portion 1 with his / her hand, and pushes it up. Is to do. A plurality of weight members 5 are inserted through the stop pin receiving shaft 2 connected to the lifting portion 1, and the weight member 5 above the position where the stop pin 3 is inserted becomes a load of exercise. Reference numeral 7 is a guide for the weight member 5.

On the other hand, a touch switch fixing plate 8 is erected from the base 6 on the back surface of the weight member 5 so that the tip of the stop pin 3 comes into contact with the touch switch fixing plate 8 when the stop pin 3 is inserted. In addition, a plurality of touch switches 9 are provided.

Then, FIG. 1 (b) is a view seen from the direction A in FIG. 1 (a).
When the stop pin 3 is inserted into the weight member 5 at a desired position with the stop pin 3 in the stationary position,
As shown in FIG. 1C, the tip of the stop pin 3 presses the corresponding touch switch 9 against the repulsive force of the spring 4, and it is detected which weight member 5 the stop pin 3 is inserted into. It Since the weights of the individual weight members 5 are known, the weight setting is uniquely determined depending on the number of times the stop pin 3 is inserted. Also, the stop pin 3
When the pressing is stopped, the stop pin 3 is separated from the touch switch 9 by the spring 4, so that the weight member 5 and the stop pin 3 do not interfere with the vertical movement.

FIG. 2 shows an electrical configuration for detection, and 21 is a touch switch group including the touch switch 9 in FIG. One end of each touch switch 9 is connected to a constant voltage point V _SS (for example, ground), and the other end is connected to the power supply terminal V _CC via the resistors of the pull-up resistor group 22 and is composed of a CPU or the like. Arithmetic control circuit
23 are connected to the respective ports P _{00 to} P ₀₇ .

Then, when any one of the touch switch groups 21 is turned on, the corresponding port of the arithmetic control circuit 23 becomes low level only while the touch switch group 21 is turned on. The arithmetic and control circuit 23 has each port P
_{00 to} P ₀₇ are sequentially scanned to check whether the status of each port is high level or low level, and if there is a low level port, it corresponds to that port.
The weight value data is read from the memory 26 and the corresponding data is transferred to the decoder driver 24. For example, if port P ₀₀ is at low level, port 26 will be
_The data corresponding to ₀₀ (for example, “10 kg”) is read and this data is transferred to the decoder driver 24. Then, the decoder driver 24 converts the weight value data into 7-segment control data, which is digitally displayed on the display 25. The arithmetic control circuit 23, the decoder driver 24, and the memory 26 may be configured by a one-chip CPU. Also,
FIG. 3 is a flow chart showing the above-mentioned processing in the arithmetic control circuit 23.

Next, FIG. 4 shows a configuration for detecting the passage of a vertically moving weight member with a photoelectric switch and counting the number of vertical movements, and is a view seen from the direction B in FIG. ing.

That is, the photoelectric switch 10 is mounted on the base 6 via the height adjustment shaft 12 and the photoelectric switch fixing shaft 11, and the light beam 16 of the photoelectric switch 10 is placed at a position where the vertical movement of the weight member 5 causes the blocking and blocking. Is being irradiated. Incidentally, the mounting position of the photoelectric switch 10 can be adjusted so as to be an appropriate height because the passing height differs depending on the person or the number of the weight members 5. Fig. 5 shows the height adjustment shaft 12 and the photoelectric switch fixed shaft.
11 is a cross-sectional view of the height adjustment mechanism, in which a plastic cylinder 13 with a slit is inserted into the upper end of the height adjustment shaft 12, and a photoelectric switch fixing shaft 11 is inserted into the inside of the plastic cylinder 13. Tapered and height adjustment shaft 12
By tightening the slitted plastic cylinder 13 with a fastener 14 having a screw part that matches the screw part of
The photoelectric switch 10 can be fixed at any height. The slitted plastic cylinder 13 has a notch 13a so that the entire cylinder does not enter the height adjusting shaft 12.

FIG. 6 shows a circuit configuration for detecting the number of times the weight member is moved up and down by a photoelectric switch, and 10 is a photoelectric switch composed of an issuing diode 33 and a photocell 34. Then, a current flows from the power source V _DD to the light emitting diode 33 via the current limiting resistor 31 and the volume 32, and the light emitting diode 33 emits light. The amount of light emitted at this time is the volume
It is adjustable by 32.

The light emitted from the light emitting diode 33 is moved forward by the weight member 5.
If there is no light, the photocell 34 does not return to the photocell 34 and does not generate an electric current. However, if the weight member 5 is in the front, the light emitted from the light emitting diode 33 is reflected by the weight member 5 and is reflected by the photocell 34. Received light. Therefore, the photocell 34 generates a current according to the amount of received light, and this current is converted into a voltage by the operational amplifier 35 and the feedback resistor 35.

Next, this voltage is filtered by a filter circuit 37 to remove hum noise, noise due to ambient light, etc.
It is converted into a rectangular wave by a comparator circuit composed of 39, 40, 42 and volume 41. Therefore, the weight member 5
Is raised once above the photoelectric switch 10 composed of the light emitting diode 33 and the photocell 34,
Two pulses occur at the output of op amp 38. And
This pulse is counted by the counter circuit 43, converted into display data by the decoder driver circuit 44, and LE
It is digitally displayed on the display element 46 made of D or liquid crystal.
When returning the displayed numerical value to zero, the content of the counter circuit 43 may be cleared by the reset switch 45.

(Effects of the Invention) As described above, in the present invention, in the weight training machine in which a plurality of weight members are stacked, a predetermined number of weight members are gathered by a stop pin, and the weight members are moved up and down by using the load as a load, Since the weight value of the weight member serving as a load is detected in response to the insertion of the stop pin, there is an effect that the set weight of the weight training machine can be automatically displayed and further directly input to the computer.

[Brief description of drawings]

FIG. 1 is an external configuration diagram showing an embodiment of a weight training machine of the present invention, FIG. 2 is a circuit configuration diagram for detecting insertion of a stop pin and displaying a set weight, and FIG. 3 is FIG. Flowchart showing processing in the arithmetic control circuit of No. 4,
The figure shows the configuration around the photoelectric switch in Fig. 1,
FIG. 5 is a detailed view of the height adjusting shaft in FIG. 4, and FIG. 6 is a circuit configuration diagram for detecting the number of vertical movements of the weight member from the photoelectric switch of FIG. 1 ... Lifting part, 2 ... Stop pin receiving shaft, 3 ... Stop pin, 4 ... Spring, 5 ... Weight member, 6 ... Base,
7 ... Guide, 8 ... Touch switch fixing plate, 9 ... Touch switch, 10 ... Photoelectric switch, 11 ... Photoelectric switch fixed shaft, 12 ... Height adjustment shaft, 13 ... Plastic cylinder with slit, 13a … Cut, 14… Fastener, 15…
… Bed, 21 …… Touch switch group, 22 …… Pull-up resistor group, 23 …… Arithmetic control circuit, 24 …… Decoder driver, 25 …… Display, 26 …… Memory

Claims (1)

[Claims] 1. A weight training machine in which a plurality of weight members are piled up and a predetermined number of weight members are put together and a vertical movement is performed by using this as a load, which serves as a load corresponding to the insertion of the stop pin. A weight training machine characterized by detecting a weight value of a weight member.