JP2006325636A - Training machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To execute a combined exercise with a squat exercise by a single training machine. <P>SOLUTION: A pair of front and rear supporting frames 12 are erected on the base frame 11 of this training machine 10, and a cylindrical member 27 is freely rotatably pivoted on the upper end sections of the supporting frames 12. A backrest arm 16 which supports the back of a trainee is welded to the outer peripheral surface of the cylindrical member 27, and the load of an electromagnetic braking unit 32 is transmitted to the backrest arm 16. The electromagnetic braking unit 32 has a pair of right and left electromagnets 36, a brake disk 35 located between the electromagnets 36, and a detecting means 42 which detects the rotating speed of the brake disk 35. The electric current for exciting the two electromagnets is adjusted in response to the rotating speed of the brake disk. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a training machine that can perform squat, hip lift, back stretching and abdominal muscle stretching in a complex manner.

  The present invention is an invention developed based on a known training machine without conducting a prior art search. The prior art known to the applicant is not a known literature invention, and there is no prior art document information. Hereinafter, an outline of a known training machine will be described with reference to FIGS.

  The training machine 1 includes a load applying device (weight block type) 3 in which a predetermined number of weight blocks are stacked in a weight frame 2 having a quadrilateral shape, an auxiliary bar 4 for connecting between both side frames of the weight frame 2, A base frame 5 extending from the lower frame of the weight frame 2, a connection frame 6 connecting the center portion of the base frame 5 and the auxiliary bar 4, and the connection through which the load of the load load device 3 is transmitted A backrest pad 7 slidable on the frame 6 and a step 9 supported on the tip of the base frame 5 are provided. A pair of left and right shoulder pads 8 are attached to the backrest pad 7.

  Then, the trainer trained the legs and hips by placing squats on the step 9 and performing squats against the load of the load device 3 while both shoulders were fixed with the shoulder pad 8. .

  However, since the conventional training machine 1 cannot perform other training simultaneously with squats, a plurality of machines must be prepared in advance in order to perform complex training.

  This not only affects the efficiency of training, but also may cause problems in the installation location and cost depending on the training facility.

  The present invention has been invented in view of the above-mentioned conventional problems. The invention according to claim 1 is extended to a support frame standing on a base frame and an outer surface of a support frame on which a trainee is seated. A seating frame, a back arm at the upper end of the support frame that supports the back of the seated trainee, and a load loading device that applies a load to the back arm, the back arm being in a direction opposite to the seat frame It is characterized by being freely rotatable.

  The backrest arm is welded to the outer peripheral surface of a cylindrical member rotatably supported on the upper end portion of the support frame, for example, as in the second aspect of the invention. Therefore, when a squat exercise is performed to extend both legs, the backrest arm rotates to the opposite side of the seating frame, and the body of the trainee naturally takes a stretching posture with his back facing back.

  According to a third aspect of the present invention, the load load device includes an electromagnetic brake unit that generates a load to be transmitted to the cylindrical member, and the electromagnetic brake unit includes a pair of electromagnets and a brake disk between the electromagnets. And when the two electromagnets are excited, a braking torque is generated in a direction opposite to the rotation direction of the brake disk, and the braking torque is transmitted to the cylindrical member to apply a load to the backrest arm. It is characterized by that.

  This electromagnetic brake unit is a so-called eddy current brake applied to a load application device, and generates braking torque in a direction opposite to the rotation direction of the brake disc when both electromagnets are excited.

  According to a fourth aspect of the present invention, the electromagnetic brake unit is provided with detection means for detecting the rotational speed of the brake disc, and the excitation current of the two electromagnets is automatically adjusted according to the rotational speed detected by the detection means. It is characterized by that.

  Therefore, the load applied to the backrest arm is automatically adjusted according to the muscular strength of the trainee without adjusting the number of weight blocks, and an appropriate load is applied to the backrest arm.

  According to a fifth aspect of the present invention, when the rotation speed detected by the detection means exceeds a preset rotation speed set in advance, the excitation current of the two electromagnets increases, but does not reach the predetermined rotation speed. In this case, the exciting current of both the electromagnets is reduced.

  Therefore, when the rotation speed is lower than the predetermined rotation speed, the load on the backrest arm is decreased. On the other hand, when the rotation speed is higher than the predetermined rotation speed, the load on the backrest arm is increased, and an appropriate load is applied to the backrest arm.

  The invention according to claim 6 is characterized in that a load load suitable for a trainee is calculated and displayed based on a detection result of the detection means.

  Accordingly, a load amount suitable for the muscular strength of the trainee is calculated, and the load amount can be selected using this as a guide.

  According to the first to sixth aspects of the present invention, when a squat exercise is performed to extend both legs, the body of the trainee naturally becomes a posture of stretching with his back facing back, so that a complex training can be performed on a single machine. It can be done, and there is no problem in training efficiency, installation location, and cost.

  In particular, according to the invention described in claim 3, since the braking torque is generated in the direction opposite to the rotation direction of the brake disc, it is not necessary to stack a plurality of weight blocks in the weight frame, and the machine can be designed compactly. In addition, the degree of freedom in design increases. Since this braking torque is caused by braking of the eddy current brake, the brake is applied when returning to the seating posture, and safety is ensured.

  According to the fourth and fifth aspects of the present invention, an excessive load is prevented from being applied to the backrest arm, so that training can be performed with an optimum load.

  According to the sixth aspect of the present invention, the trainer can easily grasp the athletic ability, and also in this respect, can train with an optimum load.

  1 to 8 show a back extension type training machine 10 according to an embodiment of the present invention. In this training machine, the training load is controlled, and it is possible to perform hip lift, back stretching and abdominal muscle stretching in combination with squat movement.

As shown in FIG. 1, the training machine 10 includes an L-shaped base frame 11 placed on the floor surface and a pair of front and rear support frames 12 erected obliquely at the rear end of the base frame 11. A lifting and lowering seating frame 13 extending from the outer surface of the front support frame 12 to support a trained person, an upper and lower connection plate 15 connecting the support frames 12, and an upper connection plate 15 A back support arm 16 that is rotatably supported, a load load device 17 that applies a load to the back support arm 16, a control means 18 for setting and controlling the load of the load load device 17, and the both supports. The frame 12 and a cover 19 that covers the load application device 17 are mainly configured, and the base frame 11 has front and rear projections that protrude in the left-right direction. Assistant bar 20 is mounted.
(Back arm 16)
As shown in FIGS. 1 and 2, the backrest arm 16 includes an arm body 21 that is bent at a predetermined angle that supports the back of the trainee and a core welded to the lower end of the arm body 21. A U-arm pad 22 is attached to both ends of the U-arm 22.

  Further, the backrest arm main body 21 has a backrest pad 25 fixed to the upper end portion thereof, while the rear surface of the bent portion 26 is an outer periphery of a cylindrical member 27 that is rotatably supported by the upper connecting plate 15. Welded to the surface. As shown in FIG. 2, one end of the shaft member 29 is fixed to the outer surface of the connecting plate 15. The cylindrical member 27 is inserted into the other end portion of the shaft member 29 via a cylindrical spacer 30 so as to be rotatable along the axial direction.

The cylindrical spacer 30 is rotatably inserted into the shaft member 29 via a bearing, and is fixed to the cylindrical member 27, so that the load of the load load device 17 is transmitted to the inner end surface on the connecting plate 15 side. Thus, the drive gear 31 and the cylindrical member 27 are rotated synchronously.
(Loading device 17)
As shown in FIG. 3, the load load device 17 includes an electromagnetic brake unit 32 that generates a braking force by operating the control means 18, and a load transmission that transmits the braking force of the electromagnetic brake unit 32 to the drive gear 31. And a mechanism 33.
(1) The electromagnetic brake unit 32 includes a pair of rectangular support plates 34 screwed onto the base frame 11, and a brake disc 35 made of a copper plate rotatably supported between the support plates 34. A pair of electromagnets 36 for braking the brake disk 35, a detecting means 42 for measuring the rotational speed of the rotating shaft 37 of the brake disk 35, and a brake driver 39 for generating an exciting current for the electromagnet 36. ing.

  The two support plates 34 are connected to each other, and a rotating shaft 37 of the brake disc 35 is rotatably mounted on a support groove 40 at the upper end portion via a bearing, while the electromagnets 36 are mounted at the lower end portion. Screwed through the base plate 41.

  Since the outer peripheral edge of the brake disc 35 is located between the electromagnets 36, the brake disc 35 acts as an eddy current brake when the electromagnets 36 are excited. Accordingly, when the brake disk 35 rotates when the electromagnets 36 are excited, a braking torque is generated in the direction opposite to the rotation direction of the brake disk 35, whereby the rotation of the brake disk 35 is braked.

  As shown in FIG. 4, the detection means 42 is composed of a rotary encoder that detects a rotation pulse signal of the rotation shaft 37, and transmits the detected rotation signal to the control means 18. Further, as shown in FIG. 3, the detection means 42 is fixed to one of the support plates 34 via a mounting bracket 38 having a U-shaped cross section, and the central portion of the mounting bracket 38 has one support groove. 40, both ends are screwed to one of the support plates 34.

The brake driver 39 is screwed to one of the support plates 34, and as shown in FIG. 4, a voltage signal is transmitted from the control means 18, and a current amount corresponding to the voltage signal is applied to the electromagnets 36. And excited.
(2) As shown in FIG. 3, the load transmission mechanism 33 includes a pulley 43 that rotates synchronously with the brake disc 35, a pulley 44 that is rotatably supported by the both support plates 34, and both the pulleys 43. , 44 and a drive gear 46 that rotates synchronously with the pulley 44.

  A chain 47 is wound between the drive gear 46 and the drive gear 57 of the support frame 12 as shown in FIG. A chain 59 is also wound around the drive gear 58 that rotates in synchronization with the drive gear 57 and the drive gear 31.

Accordingly, the braking torque of the brake disk 35 appears on the cylindrical member 27 and is transmitted to the arm body 21 as a load.
(Sitting frame 13)
As shown in FIG. 1, the seating frame 13 has a seat pad 14 that is attached to the front support frame 12 via a support portion 92 and on which a trainee sits, and an adjustment lever 91. 91 allows the height of the installation position to be freely changed.
(Control means 18)
As shown in FIG. 1, the control means 18 is attached to the upper end portion 11a of the base frame 11, executes an arithmetic processing function, an input function, and a display function, and controls the amount of excitation current of the electromagnets 36. Yes.
(1) The control means 18 has a low load mode in which a voltage value transmitted to the brake driver 39 is small, a high load mode in which a voltage value transmitted to the brake driver 39 is large, and the rotating shaft 53 by an arithmetic processing function. The automatic load mode for automatically controlling the voltage value according to the rotation speed of the robot and the measurement mode for calculating the load amount suitable for the muscular strength of the trainee are executed.

  In the case of the low load mode and the high load mode, a preset number of exercises (1 to 50 times) and a load amount (0.5 kg to 5.0 kg in the low load mode, 1.0 kg to 12 in the high load mode). .0 kg) is transmitted to the brake driver 39. Therefore, the brake driver 39 energizes both the electromagnets 36 with a current amount corresponding to the voltage signal to excite them, thereby generating a braking torque proportional to the rotational speed on the brake disk 35.

  In the automatic load mode, the voltage to the brake driver 39 is changed by the control means 18 in accordance with the rotation speed of the rotation signal (pulse signal) transmitted from the detection means 42. That is, when the rotation speed of the arm body 21 (the effective rotation speed of the rotation shaft 37 detected by the detection means 42) is lower than a predetermined rotation speed, the voltage value to the brake driver 39 is set. The load of the arm main body 21 is decreased. On the other hand, when the exercise speed of the trainee exceeds the predetermined rotation speed, the voltage value to the brake driver 39 is increased to increase the load on the arm main body 21.

  Hereinafter, the electromagnetic brake characteristics in the automatic load mode will be described with reference to FIG. In FIG. 6, the X axis indicates the rotational speed of the rotary shaft 37 measured by the detecting means 42, and the Y axis indicates the braking torque of the brake disc 35. Also, the load straight line A.I. B. C is the current A.I. B. The relationship between the rotational speed when C is energized and the load is shown.

  Here, the electromagnets 36 are energized based on the load straight line B at the start of exercise, but the voltage is changed according to the execution rotational speed (Sx) detected by the detection means 42 during training.

  Specifically, when the effective rotational speed (Sx) detected at the start of the exercise does not reach the predetermined rotational speed S1 (214 rpm) (Sx <S1), the control means 18 sets the voltage value as indicated by the arrow Q. Therefore, the excitation current amount of the two electromagnets 36 is switched to the load straight line C, whereby the torque coefficient of the brake disc 35 is reduced and the load load on the arm body 21 is reduced.

  On the other hand, when the effective rotational speed (Sx) exceeds the predetermined rotational speed S2 (230 rpm) (Sx> S2), the control means 18 increases the voltage value as indicated by the arrow P, so that the electromagnets 36 are excited. The amount of current is switched to the load straight line A, whereby the torque coefficient of the brake disk 35 is increased, and the load load on the arm body 21 is increased.

  This default rotational speed S1. S2 is stored in the ROM of the control means 18 and read at the start of training. The set values (S1 = 214 rpm, S2 = 230 rpm) of the specified rotational speed can be changed as appropriate according to specifications.

In the case of the measurement mode, load loads corresponding to the load straight lines A to C are appropriately executed, and the rotation speed of the rotary shaft 37 with respect to the load amount is measured a predetermined number of times (for example, 10 times), and the predetermined rotation is performed. The amount of load that has reached the speed is displayed.
(2) Further, as shown in FIG. 5, the control means 18 has an input display section 49 for executing an input function / display function on a box 48. The input display section 49 is roughly divided into mode buttons 53 to 56 for selecting each mode and a liquid crystal panel 52.

  The mode buttons 53 to 56 select a mode button 53 for selecting an automatic mode, a mode button 54 for selecting a low load mode, a mode button 55 for selecting a high load mode, and a measurement mode for measuring a change in force. When the high load mode and the low load mode are selected, the number of exercises (1 to 50 times) and the load amount of the backrest arm 16 are set on the liquid crystal panel 52.

The liquid crystal panel 52 displays a training screen in the training mode (low load mode / high load mode / automatic load mode), and displays a measurement screen and a measurement result screen in the measurement mode. On this measurement screen, the number of exercises or the remaining number of times / end screen is displayed. In the case of the measurement mode, a recommended mode suitable for muscle strength is displayed based on the optimum load amount calculated by the control means 18.
(Operation step)
(1) Therefore, the steps in the case of performing a squat exercise using the training machine 10 of the present embodiment will be described. First, as shown in FIG. The posture is adjusted according to the sitting height, with both elbows applied to the elbow pad 24 while leaning on the back pad 25.

  Next, when the mode panels 53 to 56 are touched according to their own muscle strength to select any one of the high load mode, the low load mode, the automatic mode, and the measurement mode, the control means 18 causes the voltage signal of each mode to be selected. Is transmitted to the brake driver 39. Since the brake driver 39 energizes both electromagnets 36 by this voltage signal, both electromagnets 36 are excited.

  When the trainee rotates the arm body 21 at this time, the brake disk 35 rotates, so that a braking torque is generated in a direction opposite to the rotation direction and a load load is applied to the arm body 21.

  As shown in FIG. 8, when the trainer performs a squat exercise to extend both legs while resisting the load on the arm body 21, the arm body 21 rotates in the direction of the arrow I, so that the trainer naturally The body takes a stretching posture with its back facing back, and then sits on the seat pad 14.

  Since this load is caused by the braking of the eddy current brake, it is generated with respect to the rotation of the brake disc 35 in the forward and reverse directions, and the brake is applied so as not to return suddenly by its own weight even when seated. It is secured.

  In addition, unlike the weight block type load device, there is no need to stack a plurality of weight blocks in the weight frame, thereby providing an advantage that a compact design can be achieved and the degree of design freedom is increased.

  By repeating these movements, hip lift, back stretching and abdominal muscle stretching exercises can be performed simultaneously with squat exercises. As a result, multiple training can be performed on a single machine. There is no need to prepare a machine, and there is no problem in training efficiency, installation location, and cost.

In this case, stretching exercise improves the blood flow and lymph flow throughout the body, improving fatigue recovery and healing ability, and also promoting blood flow to the brain. Ideal for complex training.
(2) In the automatic load mode, when the rotation speed of the arm body 21 is fast, the braking torque of the brake disk 35 increases. On the other hand, when the rotation speed of the arm body 21 is slow, the brake disk 35 Therefore, the optimum load is automatically set according to the exercise speed of the trainee.

  Therefore, an excessive load is not applied to the arm main body 21, and elderly people and persons with disabilities can perform training with peace of mind, thereby improving the efficiency of training.

In the measurement mode, the recommended mode and the optimum load amount suitable for the muscular strength are displayed based on the optimum load amount calculated by the control means 18, so that the load suitable for the self can be easily grasped and displayed. With this as a guideline, the trainee can select the next training mode (high load mode or low load mode), which also improves the training efficiency.
(Other)
(1) The present invention is not limited to the above embodiment, and training data (for example, the number of exercises and recommended mode) detected by the detection unit 42 is stored in the storage unit 94 (for example, a memory card) in FIG. Etc.) and read by the control means 18 at the next training, and the next training can be performed based on this.
(2) Further, as shown in FIG. 4, the detection means 42 is not a rotary encoder but a pulse sensor, and the excitation current amount of the two electromagnets 36 is adjusted according to the pulse value measured by the pulse sensor. You can also. In this case, it is preferable to display the pulse value on the liquid crystal panel 52.
(3) Furthermore, a powder brake can be used for the load application device 17, and the electromagnetic brake unit 32 and the control means 18 can be eliminated and a weight block type can be used. Even when using both load-bearing devices, hip lift, back stretching and abdominal muscle stretching can be performed simultaneously with squat exercise, and a single machine can perform complex exercise.

A side view of a training machine concerning an embodiment of the present invention. a is an enlarged rear view of the back support arm, and b is an exploded perspective view showing a connection state of the back support arm. The exploded perspective view of the load application device. The schematic diagram which shows the setting transmission of the same load load. The front view of the operation display part. The graph which shows the relationship between the operation speed and a load load. The side view which shows the state which the trainee sat down. The side view which shows the state which the trainee operated. The side view of a prior art example. The front view of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Training machine 11 ... Base frame 12 ... Supporting frame 13 ... Seating frame 17 ... Load applying device 16 ... Backrest arm 27 ... Cylindrical member 32 ... Electromagnetic brake unit 35 ... Brake disk 36 ... Electromagnet 42 ... Detection means

Claims (6)

A support frame erected on the base frame, a seating frame extended on the outer surface of the support frame on which the trainee sits, a back arm on the upper end of the support frame that supports the back of the trained trainee, and the back arm A load application device that applies a load to the
A training machine, wherein the backrest arm is rotatable in a direction opposite to the seating frame. A cylindrical member is rotatably supported on the upper end portion of the support frame, and
The training machine according to claim 1, wherein an outer surface of the backrest arm is welded to an outer peripheral surface of the cylindrical member. The load load device is configured by an electromagnetic brake unit that generates a load to be transmitted to the cylindrical member,
The electromagnetic brake unit has a pair of electromagnets and a brake disk between the electromagnets,
When the two electromagnets are excited, a braking torque is generated in the direction opposite to the rotation direction of the brake disc,
The training machine according to claim 2, wherein the braking torque is transmitted to the cylindrical member, and a load is applied to the backrest arm. The electromagnetic brake unit is provided with detection means for detecting the rotational speed of the brake disc,
4. The training machine according to claim 3, wherein the exciting currents of the two electromagnets are automatically adjusted according to the rotational speed detected by the detecting means. When the rotation speed detected by the detection means exceeds a preset rotation speed set in advance, the excitation current of the two electromagnets increases,
The training machine according to claim 4, wherein when the predetermined rotational speed is not reached, the excitation current of the two electromagnets decreases. The training machine according to any one of claims 4 to 5, wherein a load load suitable for a trainee is calculated and displayed based on a detection result of the detection means.

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