JP3124460U - Seat rotation control mechanism for fitness equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seat rotation control mechanism for fitness equipment having an effect of giving rotation control as an auxiliary to a seat of a versatile sports / fitness equipment such as a bicycle, a fitness bike, and a fitness chair.
A rotation control mechanism for a fitness apparatus, in which a single eccentric fan gear rotates a connected eccentric shaft to rotate a seat pivoted on the eccentric shaft, thereby rotating a pedal rotation shaft or a reduction motor. Alternatively, the power source by the simultaneous operation of both can be selected, and when the control mechanism is applied to a bicycle, fitness bike, fitness chair, the rotation of the seat can be controlled. It has the effect of turning.
[Selection] Figure 1

Description

  The present invention relates to a seat rotation control mechanism for fitness equipment, and further, a seat that is axially connected to an eccentric shaft is driven by a pedal shaft of a bicycle, a fitness bike, or a fitness chair, or is driven by an electric motor. The present invention relates to a seat rotation control mechanism for fitness equipment that can rotate a seat during exercise.

  There are many types of general fitness equipment, but most are mainly exercised indoors, and the most commonly seen is a fitness bike. Among them, the magnetically controlled fitness bike used by many people is easy to operate, and can be used by adjusting the resistance of the stepping force by adjusting the distance of magnetic traction between magnetic fields with only one adjuster. The person appropriately adjusts the magnitude of the action.

  The above-mentioned fitness bike is for exercising the thigh, and in order to exercise the waist and buttocks of the human body, there is no instrument that has the function of exercising that part other than using a hula hoop. Or because there is only a vibratory massager that vibrates to the buttocks, there is no other way for those who do not have hula hoops or cannot use it by just twisting their bodies on the spot.

  1. Conventionally known fitness bikes provide only a foot-stepping exercise and do not have a function of providing exercise to the lower back.

  2. In order to use the hula hoop, skill and skill are required, it is not something that can be operated immediately, and a sufficient space is required, which limits the use.

  3. If the waist is swung directly around the body or the hips are shaken, the upper body shakes accordingly, and as a result, the exercise effect and degree of the waist and buttocks are greatly hindered.

  1. In the present invention, an eccentric shaft is provided in one sleeve, one seat is pivotally provided at one end of the eccentric shaft, and one driven fan gear is provided at the other end, whereby the driven fan gear is rotated. The sheet can be rotated.

  2. The driven fan gear in the plan may be fixed or separated from the eccentric shaft, but when separated, the driven fan gear can move up and down from the bottom end of the eccentric shaft and simultaneously rotate the eccentric shaft. It can be constituted as follows.

  3. In the present invention, a single fan gear is engaged below the driven fan gear, the fan gear is fixed to the main shaft, and a single driven chain wheel or main gear is further fixed to the main shaft. By providing and rotating the driven chain wheel or the main gear respectively, the driven fan gear can eventually rotate the seat via the eccentric shaft.

  4). The power source in the present invention may be a pedal rotation shaft or a reduction motor as long as the main shaft can be rotated.

  5). In the present invention, the first clutch mechanism and the second clutch mechanism can be applied. The first clutch mechanism can control engagement and disengagement between the driven sector gear and the main shaft sector gear, and the second clutch mechanism can be a reduction motor. And the main gear of the main shaft can be controlled to be engaged and disengaged, and by these controls, a power source for the eccentric shaft to rotate the seat can be selected. In other words, the seat can be rotated by the pedal rotation shaft, the seat can be rotated by the reduction motor, or the seat can be rotated by the pedal and the reduction motor at the same time.

  6). In the present invention, the above-described sleeve is used for bicycles, fitness bikes, and fitness chairs, and a relay sleeve is provided above the sleeve, so that the eccentric shaft can be fitted into the relay sleeve so as to be vertically extendable. And the eccentric shaft can be adjusted up and down according to the height of the user.

  7). In the present invention, the seat for adjusting the seat pivoted to the eccentric shaft can be fixed to the top end of the eccentric shaft, so that the longitudinal position of the seat is appropriately adjusted according to the rotation radius required when the eccentric shaft is driven. It can be done.

8). The present invention can be applied to fitness bikes, bicycles or fitness chairs and can select different operation controls.

  According to the first aspect of the present invention, it is possible to realize a fitness exercise in which the hip and hips are rotated simultaneously with the stepping exercise.

  According to the invention of claim 2, since the auxiliary power from the reduction motor can be used to rotate the seat, the seat can be rotated with a small pedal rotational force, and the seat is automatically rotated only by the reduction motor. You can also.

  According to the third aspect of the present invention, it is possible to realize a fitness exercise that performs a rotational motion between the buttocks and the waist simultaneously with the stepping motion, and it is possible to select a power source.

  According to the invention described in claim 5, the height of the seat can be adjusted up and down in accordance with the user.

  According to the invention described in claim 6, the sheet can be freely rotated around the shaft bar regardless of the rotation of the eccentric shaft, and the rotation radius of the sheet when the eccentric shaft is driven is appropriately set as required. Can be adjusted.

  According to the tenth aspect, a power source for fitness exercise can be selected.

  Hereinafter, preferred embodiments of the present invention will be described with bicycles, fitness bikes, and fitness chairs as representatives. However, the form of the present invention is not limited to the following embodiments, and the technology of the present invention is not limited thereto. It goes without saying that various forms can be adopted as long as they belong to the scope.

  The common structural part in the mechanism of the present invention is that, as shown mainly in FIGS. 1 to 3, one sleeve 11 is provided on the support frame 1, and one bearing 12 is provided at each end of the sleeve 11. A single sheet S (see FIG. 4) is pivoted on one eccentric shaft 2, and one relay shaft 21 is extended downward from the lower end of the eccentric shaft 2, so that the lower portion of the relay shaft 21 1 is provided with one axial slide groove (rail) 211, and further provided with one screw thread 212 above the axial slide groove (rail) 211, as shown in FIGS. Next, the eccentric shaft 2 is fitted into the bearing 12, and a single nut 213 is fastened to the screw thread 212 and fixed to the lower end of the bearing 12 at the bottom end of the sleeve 11, and then the seat S is rotated. For this purpose, the eccentric shaft 2 is rotated by the bearing 12 in the sleeve 11.

  By providing an axial slide rail (groove) 32 paired with the axial slide groove (rail) 211 of the relay shaft 21 at the inner edge of the shaft hole 31 of one driven fan-shaped gear 3, the shaft of the relay shaft 21 is provided. When the directional slide groove (rail) 211 is fitted into the axial slide rail (groove) 32 of the shaft hole 31 of the driven fan gear 3, the driven fan gear 3 is moved to the axial slide groove ( The eccentric shaft 2 can be rotated while being movable up and down along the rail) 211. Further, when one compression spring 314 is provided outside the axial slide groove (rail) 211 of the relay shaft 21 and the compression spring 314 is positioned between the nut 213 and the driven fan gear 3, the compression spring 314 is provided. Can be compressed or restored by moving the driven sector gear 3 up and down.

  Therefore, one fan gear 41 is provided below the driven fan gear 3 so as to mesh with the fan gear 41, the fan gear 41 is fixed to the main shaft 4, and one driven chain wheel 42 or main gear 42 'is connected to the main shaft 4. The main shaft 4 is passed through the outside of the support frame 1 by being fixed to the shaft 4.

  As shown in FIGS. 4 to 8, on the pedal rotation shaft 5, in addition to the existing drive chain wheel 51, one auxiliary chain wheel 52 is added inside, and one chain 53 is supported as an auxiliary. If the chain wheel 52 and the driven chain wheel 42 are provided so as to be interlocked with each other, the auxiliary chain wheel 52 and the driven chain wheel 42 can be rotated by the rotation of the pedal rotating shaft 5, and as a result, the main shaft 4 is When the fan-shaped gear 41 is driven, the driven fan-shaped gear 3 that meshes with the fan-shaped gear is rotated, and as a result, the eccentric shaft 2 is rotated, the seat rotates and the stepping motion is achieved. Lumbar exercise is also achieved. On the other hand, even if the rotation of the pedal rotation shaft 5 is not used, the rotation of the waist can be performed with the bearing 12 as the center of the eccentric shaft 2 by the rotation of the user's buttocks. In this way, it can be applied to the bicycle 10 and the fitness bike 20.

  As shown in FIGS. 9 and 10, the driven chain wheel 42 provided on the main shaft 4 is replaced with a main gear 42 ', and a single reduction motor 6 is provided in front of the main shaft 4, and the reduction motor 6 When one drive gear 61 is fixed to the main gear 42 ', the main gear 42' and the main gear 42 are eventually rotated along with the rotation of the drive gear 61 by the reduction motor 6. The main shaft 4 fixed to 'rotates, and further, the sector gear 41 fixed to the main shaft 4 rotates. As a result, the driven sector gear 3 meshing with the sector gear 41 rotates, and the eccentric shaft 2 connected to the driven sector gear 3 also rotates. With the above configuration, the seat S can be automatically rotated by auxiliary power from the reduction motor 6 and can be applied as a fitness chair 30.

  As shown in FIGS. 7 to 10, another driven chain wheel 42 is further fixed on the main shaft 4 on the side different from the main gear 42 ′, and one side is also provided on the side different from the drive chain wheel 51. By fixing the auxiliary chain wheel 52 ′ and covering the single chain 53 ′, the driven chain wheel 42 and the auxiliary chain wheel 52 ′ rotate in conjunction with each other, and the sector gear 41 fixed to the main shaft 4 is used. However, when the driven sector gear 3 meshed with the sector gear 41 is rotated, the eccentric shaft 2 connected to the driven sector gear 3 also rotates. With the above configuration, the seat S can be rotated with a small force by the auxiliary power of the reduction motor 6 and the power of the pedal rotation shaft 5, and can be applied as a fitness bike 20.

  The regulators A and B shown in FIGS. 7 and 9 are devices conventionally used for general exercise equipment. The adjusting ropes A1 and B1 are wound around the adjusting devices A and B, and correspond to the brake line of a general bicycle brake. However, since they are conventionally known parts, description thereof is omitted.

  As shown in FIGS. 7, 9, 10, 11, 12, 13, and 14, the movement of the driven sector gear 3 in the vertical direction applies the control by the first clutch mechanism 7. In the first clutch mechanism 7, a single receiving plate 71 is inserted into the ring groove 33 (see FIG. 2) formed between the compression spring 314 and the driven sector gear 3, The spring 73 is placed between the receiving plate 71 and the plate body 74 by being provided through the one fixing bar 72 and then being covered with the one spring 73 and fixed to the plate body 74. Further, the end of the adjusting rope A1 of one adjuster A is fixed to the plate 74. A rope sleeve A2 covering the adjustment rope A1 is fixed to the receiving plate 71 by a single stop pin A3 at a position between the fixing bar 72 and the relay shaft 21. In such a configuration, when the adjuster A is adjusted to adjust the adjustment rope A1 so that the driven sector gear 3 is pushed upward from the receiving plate 71 to the compression spring 314, the driven sector gear 3 is By using the axial slide rail 32, it is possible to slide up along the axial slide groove 211 of the relay shaft and disengage the driven sector gear 3 from the engagement with the sector gear 41. As a result, the user can freely rotate the seat S around the eccentric shaft 2. On the contrary, when the adjustment rope A1 is loosened, the receiving plate 71 is pushed back by the spring 73, and at the same time, the driven sector gear 3 is engaged with the sector gear 41 by the restoring force of the compression spring 314. By interlocking with the pedal rotation shaft 5, it is possible to provide simultaneous movements to the foot, waist, and buttocks, and further, by linking with the deceleration motor 6, a power source can be used for fitness exercise.

  As shown in FIGS. 7, 9, 10, 11, 12, 13, and 14, the pivoting seat 62 of the reduction motor 6 is pivoted forward of the support frame 1 by a single pivot 621. The pivot seat 62 is provided with one fixed seat 622, and the second clutch mechanism 8 can be fixed by the fixed seat 622. In the second clutch mechanism 8, one position limiting bar 81 is provided through the fixing member 622, and further covered with one spring 82, and at the same time the end of the position limiting bar 81 is fixed to the stop hook 83, The end of the adjusting rope B1 of the adjuster B is fixed to the stop hook 83, and the rope sleeve B2 of the adjusting rope B1 is fixed to the fixed seat 622 with one stop pin B3. In such a configuration, the adjustment rope B1 is adjusted by the adjuster B, and the adjustment rope B1 is tightened or loosened by the set pin B3, whereby the pivot 621 of the pivot seat 622 is rotated about the axis 621. Can be controlled. When the spring 82 is compressed by tightening the adjusting rope B1, the drive gear 61 and the main gear 42 'are engaged with each other and interlocked. When the adjusting rope B1 is loosened, the pivot seat 622 is pushed away by the spring 82. As a result, the drive gear 61 is disengaged from the main gear 42 '. In this way, the second clutch mechanism 8 controls the interlocking between the reduction motor 6 and the main shaft 4.

  As shown in FIG. 6 and FIG. 8, the sleeve 11 is used for the bicycle 10, the fitness bike 20, and the fitness chair 30, and one relay sleeve 9 is provided above the sleeve 11, while the eccentric shaft 2 is connected to the relay shaft 21. By inserting the relay shaft 21 into the sleeve 11 and the eccentric shaft 2 into the relay sleeve 9, the eccentric shaft 2 can be expanded and contracted up and down, and one fixing pin 91 is attached to the relay sleeve 9. Since the eccentric shaft 2 can be fixed by tightening, the eccentric sheet S can be adjusted up and down depending on the height of the user.

  A structure in which the sheet S is pivotally connected to the eccentric shaft 2 will be described with reference to FIGS. 15 to 18. First, one adjustment seat S1 of the seat S can be fixed to the top end of the eccentric shaft 2. On the other hand, one shaft bar S22 is provided in the axial direction at the bottom end of the sheet S, and together with the shaft sleeve S21 connected to the front end of one adjustment bar S2, the shaft bar S22 is fitted into the shaft sleeve S21. Further, when the adjustment bar S2 is inserted so as to be inserted into the adjustment seat S1, and the adjustment bar S2 is fixed with one fixing pin S3 passing through the adjustment seat S1, the distance between the seat S and the eccentric shaft 2 is fixed. Can be adjusted back and forth, and the sheet S can be freely rotated with respect to the eccentric shaft 2. In this way, the front-rear position of the seat can be appropriately adjusted according to the rotation radius required when the eccentric shaft 2 is driven. Further, since the adjustment bar S2 can be inserted into either end of the adjustment seat S1, the deviation distance of the rotational axis of the shaft bar S22 of the seat S relative to the rotational axis of the eccentric shaft 2 is achieved. The change width of the sheet S is further increased, and the change width of the rotation radius and the rotation arc degree of the sheet S can be further increased.

The schematic diagram which showed the eccentric shaft rotation mechanism in this invention. The schematic diagram which decomposed | disassembled and showed the part of the relay axis | shaft and driven fan gear in this invention. Sectional drawing of the state which combined the eccentric shaft and driven fan gear in this invention. The perspective view which looked at the bicycle which applied this invention from diagonally backward. The enlarged view of the perspective view which looked at the bicycle which applied this invention from diagonally backward on the opposite side to FIG. The partial cross section schematic diagram of the bicycle which applied this invention. The schematic diagram of the fitness bike which applied this invention. The partial cross section schematic diagram of the fitness bike which applied this invention. The schematic diagram which looked at the fitness chair which applied this invention from diagonally backward. The schematic diagram which looked at the fitness chair which applied this invention from diagonally forward. The schematic diagram of the interlocking operation state in this invention. The schematic diagram of the disengagement state of the interlocking operation by the second clutch mechanism of the present invention. The schematic diagram of the interlocking operation state in this invention. The schematic diagram of the detachment | leave state of the interlocking | linkage operation | movement by the 1st clutch mechanism of this invention. The exploded view of the sheet adjustment structure in this invention. The combination figure of the sheet adjustment structure in this invention. The exploded view of another Example of the sheet | seat adjustment structure in this invention. The combination figure of another Example of the sheet | seat adjustment structure in this invention.

Explanation of symbols

Support frame 1 Sleeve 11 Bearing 12 Eccentric shaft 2
Sheet S Relay shaft 21 Axial slide groove (rail) 211
Thread 212 Nut 213 Follower fan gear 3 Shaft hole 31
Axial slide rail (groove) 32 Compression spring 314
Fan-shaped gear 41 Main shaft 4 Followed chain wheel 42, 42 ”
Main gear 42 'Pedal rotation shaft 5 Drive chain wheel 51
Auxiliary chain wheel 52, 52 'Chain 53, 53'
Bicycle 10 Fitness bike 20 Reduction motor 6
Drive gear 61 Fitness chair 30 Controller A, B
Adjusting rope A1, B1 First clutch mechanism 7 Ring groove 33
Base plate 71 Fixing bar 72 Spring 73, 82 Plate 74
Rope sleeve A2, B2 Stop pins A3, B3 Pivoting seat 62 Pivoting axis 621
Fixed seat 622 Second clutch mechanism 8 Position limit bar 81
Stop hook 83 Relay sleeve 9 Fastening pin 91 Adjusting seat S1
Adjustment bar S2 Shaft bar S22 Shaft sleeve S21

Claims (14)

A seat rotation control mechanism for fitness equipment,
There is a sleeve provided on the support frame, and one bearing is fitted to each end of the sleeve,
There is one eccentric shaft, one seat is pivoted at the upper end, one relay shaft extends downward from the lower end, and a screw thread for tightening the nut at an appropriate position below the relay shaft Since the relay shaft is housed in the bearing of the sleeve, the lateral position of the eccentric shaft is regulated, and at the same time, the nut is firmly tightened using a nut. The rotational position within is limited,
Since the seat is pivotally connected to the upper end of the eccentric shaft, when the user gets on the seat, even if the seat moves along the circumference as the eccentric shaft rotates, the orientation of the user rotates accordingly. Without
There is one driven fan gear, which is connected to the relay shaft and meshed with the main shaft fan gear to rotate the eccentric shaft,
There is one pedal rotation shaft, and one auxiliary chain wheel is fixed to the shaft,
The sector gear and one chain wheel are fixed to the main shaft,
By linking one chain over the chain wheel and the auxiliary chain wheel, and interlocking by interlocking the sector gear and the driven sector gear,
When the main shaft is rotated by the pedal rotation shaft and at the same time the driven fan gear is rotated by the sector gear, the eccentric shaft rotates and, as a result, the seat moves along the circumference. A seat rotation control mechanism for fitness equipment,
There is one sleeve provided on the support frame, and one bearing is fitted to each end in the sleeve,
There is one eccentric shaft, one seat is pivoted at the upper end, one relay shaft extends from the lower stage, and a screw thread for tightening one nut is provided at an appropriate position below the relay shaft When the relay shaft is housed in the sleeve bearing, the lateral position of the eccentric shaft is restricted, and at the same time, the relay shaft and the eccentric shaft rotate within the sleeve bearing by being tightened with a nut. Is now restricted,
Since the seat is pivotally connected to the upper end of the eccentric shaft, when the user gets on the seat, even if the seat moves along the circumference as the eccentric shaft rotates, the orientation of the user rotates accordingly. Without
A follower fan gear connected to the relay shaft, the follower fan gear meshing with the main shaft fan gear to rotate the eccentric shaft;
There is one pedal rotation shaft, and one auxiliary chain wheel is added on it, and the sector gear, one chain wheel and one main gear are fixed to the main shaft,
The chain wheel and the auxiliary chain wheel are interlocked by covering one chain, and the sector gear and the driven sector gear are interlocked by meshing,
There is a reduction motor to which a drive gear meshing with the main gear is fixed,
When the main shaft is rotated by the pedal rotation shaft or the speed reduction motor and the driven fan gear is rotated by the sector gear, the eccentric shaft rotates, resulting in the seat rotating along the circumference. Control mechanism. A seat rotation control mechanism for fitness equipment,
There is one sleeve provided on the support frame, and one bearing is fitted to each end in the sleeve,
There is one eccentric shaft, one seat is pivoted at the upper end, one relay shaft extends from the lower stage, and a screw thread for tightening one nut is provided at an appropriate position below the relay shaft When the relay shaft is housed in the sleeve bearing, the lateral position of the eccentric shaft is restricted, and at the same time, the relay shaft and the eccentric shaft rotate within the sleeve bearing by being tightened with a nut. Is now restricted,
There is one compression spring, the compression spring is placed between the sleeve and the driven sector gear so as to be covered outside the axial slide groove of the relay shaft,
Since the seat is pivotally connected to the top end of the eccentric shaft, even when the user gets on the seat, even if the seat moves along the circumference as the eccentric shaft rotates, the orientation of the user rotates accordingly. Without
A follower fan gear connected to the relay shaft, the follower fan gear meshing with the main shaft fan gear to rotate the eccentric shaft;
There is one ring groove provided annularly on the driven fan gear for inserting one backing plate,
There is one pedal rotation axis, and one more auxiliary chain wheel is added on top of it.
The sector gear, one chain wheel and one main gear are fixed to the main shaft,
The chain wheel and the auxiliary chain wheel are interlocked by covering one chain, and the sector gear and the driven sector gear are interlocked by meshing,
There is a reduction motor to which a drive gear meshing with the main gear is fixed,
When the main shaft is rotated by the pedal rotation shaft or the reduction motor and the driven fan gear is rotated by the sector gear, the eccentric shaft rotates, resulting in the sheet moving along the circumference.
There is a first clutch mechanism comprising a backing plate, a fixing bar, a spring, a regulator, and a plate, and the first clutch mechanism is provided at an appropriate position for controlling the driven sector gear, and the backing plate is a driven sector gear. The engagement and disengagement of the driven sector gear and the sector gear is controlled by controlling the rising and lowering of the driven sector gear by the adjuster.
There is a second clutch mechanism consisting of one fixed seat, position limit bar, spring, adjuster and stop hook on the pivot seat with the reduction motor fixed. The second clutch mechanism pivots the pivot seat with the adjuster. By controlling so that it swings around the axis, the engagement and disengagement of the drive gear and the main gear are controlled,
The driven fan gear is driven to rotate the eccentric shaft simultaneously or separately by the pedal rotating shaft or the reduction motor, and then the driven fan gear is engaged with the main shaft fan gear using the first clutch mechanism. When controlled to be disengaged, the user can freely rotate the seat around the eccentric shaft, and the drive gear of the reduction motor is connected to the main gear of the main shaft using the second clutch mechanism. A seat rotation control mechanism for a fitness device that is controlled so as to be disengaged from the mesh and can be driven only by a pedal when the driven fan gear is interlocked.   An axial slide groove is provided below the thread of the eccentric shaft, and an axial slide rail corresponding to the axial slide groove is provided at the inner edge of the shaft hole of the driven fan gear, and the axial slide rail is axially slid. 4. The seat rotation control mechanism for fitness equipment according to claim 1, wherein the driven sector gear can move up and down within the range of the axial slide groove by being fitted into the groove. 5.   One relay sleeve surrounding the eccentric shaft is provided above the sleeve, one fixing pin is provided on the relay sleeve, and the eccentric shaft is fitted into the relay sleeve so that the eccentric shaft can be expanded and contracted vertically. 4. The seat rotation control mechanism for fitness equipment according to claim 1, wherein the relay sleeve and the eccentric shaft can be fixed by tightening the fixing pin. The seat pivotally connected to the eccentric shaft has one adjustment seat fixed to the top end of the eccentric shaft, one shaft bar provided in the axial direction at the bottom end of the seat, one adjustment bar, and the tip of the adjustment bar A shaft sleeve connected to the control seat and a fixing pin penetrating the adjustment seat,
The shaft bar is rotatably fitted in the shaft sleeve,
Insert the adjustment bar into the adjustment seat from the front or rear,
Adjusting the distance between the seat and the eccentric shaft by changing the position of the adjustment bar relative to the adjustment seat;
The fitness apparatus according to claim 1, wherein a distance between the seat and the eccentric shaft is fixed by fixing a position of the adjustment bar with respect to the adjustment seat by the fixing pin. Sheet rotation control mechanism.   A feature of the coupling structure of the driven fan gear and the relay shaft is that an axial slide rail (groove) is provided on the inner edge of the shaft hole of the driven fan gear, and an axial slide rail (groove) of the relay shaft. ) And an axial slide groove (rail) is provided at a position corresponding to the axial slide groove (rail) of the relay shaft in the axial slide rail (groove) of the shaft hole of the driven fan gear. 4. The eccentric shaft can be rotated at the same time as the driven sector gear moves up and down in an axial slide groove (rail) of the relay shaft by being fitted. The seat rotation control mechanism for fitness equipment described in 1.   The speed reduction motor is fixed to the pivot seat, the pivot seat is pivoted to the support frame by the pivot shaft, and the fixed seat is fixed to the pivot seat, and the second clutch mechanism is fixed by the fixed seat. The seat rotation control mechanism for fitness equipment according to claim 2 or 3, wherein the pivot seat can be swung back and forth together with the speed reduction motor because it can be fixed.   The compression spring can be provided outside the axial slide groove of the relay shaft, and when the compression spring is positioned between the nut and the driven fan gear, the compression spring is connected to the driven fan gear. The seat rotation control mechanism for a fitness device according to claim 3, wherein the seat rotation control mechanism can be compressed or returned by moving up and down. The first clutch mechanism is
The backing plate is inserted into a ring groove formed between the spring and the driven sector gear;
The fixing bar is provided through the end of the backing plate;
The spring is fixed to the plate after covering the fixing bar so as to be positioned between the receiving plate and the plate,
The adjustment rope end of the adjuster is fixed to the plate body,
The rope sleeve that covers the adjustment rope is located between the fixed bar and the relay shaft while being limited in position on the backing plate by one retaining pin,
By adjusting the adjusting rope by the adjuster, when the receiving plate is controlled to push or release the compression spring, the driven fan-shaped gear uses the axial slide rail to connect the relay shaft. 4. The seat rotation control mechanism for fitness equipment according to claim 3, wherein the engagement and disengagement of the driven sector gear and the sector gear is controlled by moving up and down in the axial slide groove. The second clutch mechanism is
The fixed seat is provided at an appropriate position on the pivot seat;
The position limiting bar is fixed to the retaining hook through the fixed seat;
The spring is provided over the position limiting bar;
The adjusting rope end of the adjuster is fixed to the retaining hook;
The rope sleeve of the adjusting rope is fixed to the fixed seat by one set pin;
By adjusting the adjustment rope with the adjuster and tightening or loosening the adjustment rope using the set pin, the pivot seat is controlled to swing back and forth about the pivot axis. The seat rotation control mechanism for fitness equipment according to claim 3, wherein the engagement and disengagement of the drive gear and the main gear are controlled.   2. The seat rotation control mechanism for fitness equipment according to claim 1, which can be applied to bicycles and fitness bikes.   The seat rotation control mechanism for fitness equipment according to claim 2, which can be applied to a fitness bike.   The seat rotation control mechanism for fitness equipment according to claim 3, wherein the seat rotation control mechanism for fitness equipment can be applied to a fitness chair by omitting the auxiliary chain wheel and the pedal rotation shaft.

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