JP2007319524A - Training machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To carry out training to match the physical constitution of a person who trains the deltoid muscle (front), the greater pectoral muscle and the triceps muscle of arm. <P>SOLUTION: The training machine 2 is provided with a seat part 6 on which a person who trains the deltoid muscle (front), the greater pectoral muscle and the triceps muscle of arm sits, a vertical guide frame 51 for supporting the position of the seat part 6 so as to be adjustable vertically and a longitudinal guide frame 52 for supporting the position of the seat part 6 so as to be adjustable longitudinally. The vertical position of the seat part 6 is adjusted by the operation of a lever 65 for vertical adjustment and the longitudinal position of the seat par 6 by the operation of a lever 86 for longitudinal adjustment. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a training machine for training muscles at specific sites, in particular, deltoid muscles (front part), pectoralis major muscles, and triceps.

  For example, there is a training machine 1 shown in FIG. 6 as a training machine for the deltoid muscle (front part), the greater pectoral muscle, and the triceps muscle (Non-Patent Document 1).

  The training machine 1 includes an operation unit 10 and a load loading device 11. The operation unit 10 includes operation arms 12 a and 12 b and a seating unit 13.

  The operation arms 12a and 12b are connected to rotating shafts 15a and 15b that are erected on a frame 14 that supports the seating portion 13. The rotation shaft 15a and the rotation shaft 15b are arranged side by side so as to rotate in conjunction with each other and have different rotation directions. The operation arm 12a includes a main arm 16a connected to the rotary shaft 15a and grips 17a and 18a provided at one end of the main arm 16a. The operation arm 12b includes a main arm 16b connected to the rotary shaft 15b and grips 17b and 18b provided at one end of the main arm 16b. Although not shown in the drawing, either one of the rotating shafts 15a and 15b is provided with a drive unit to which a cable 20 connected to the weight 19 of the load device 11 is connected.

  The seat 13 includes a seat 21 on which a user who uses the training machine 1 to train the deltoid muscle (front part), the great pectoral muscles, and the triceps, and the waist to which the user's waist is assigned. A back pad 22 and a back pad 23 to which the back of the user is addressed are provided. The seat 21, the waist pad 22 and the back pad 23 are provided on a support frame 24 standing on the floor. While the waist pad 22 and the back pad 23 are fixed to the support frame 24, the height of the seat 21 can be adjusted. Further, a footrest 25 and an assist bar 26 are installed in front of the seating portion 13.

  The load loading device 11 is erected on the floor relative to the seating portion 13. The load application device includes a weight 19 including a plurality of weight blocks 191. The weight of the weight 19 is arbitrarily set by adjusting the number of selected weight blocks 19.

A method of using the training machine 1 will be described. The user puts his feet on the floor and adjusts the height of the seat 21 while sitting on the seat 21. Next, when the user pushes the grips 17a and 17b (or the grips 18a and 18b) forward with the user's back placed on the back pad 23 and the foot is hung on the footrest 25, the main arm 16a, 16b rotates around the rotation shafts 15a and 15b, respectively. Then, the grips 17a and 17b (or the grips 18a and 18b) are slowly returned before the elbow is fully extended. At this time, the weight of the weight 19 preset by the load loading device 11 is applied to the muscles of the specific part of the user, that is, the deltoid muscles (anterior part), the great pectoral muscles, and the triceps surae. As a result, the muscle at the specific site can be trained.
Senoh Co., Ltd., 2006 Senoh General Catalog “Sports Product Guide 2006”, September 2005, pp. 161

  In the seating portion 13 of the training machine 1, the seat 21 is movable in the vertical direction, but is not movable in the front-rear direction. Therefore, the training machine 1 cannot train the deltoid muscle (front part), the great pectoral muscle, and the triceps muscle according to the physique of the user.

  Accordingly, the training machine according to claim 1 supports a seating portion on which a person who trains the deltoid muscle (front part), the great pectoral muscle and the triceps, and the position of the seating portion can be adjusted in the vertical direction. And a front-rear direction guide part that supports the position of the seating part so as to be adjustable in the front-rear direction.

  The training machine according to claim 2 is the training machine according to claim 1, wherein the vertical adjustment means for adjusting the position of the seating part in the vertical direction guide part and the position of the seating part in the front-rear direction guide part are adjusted. Adjusting means.

  The training machine according to claim 3 is the training machine according to claim 1, wherein the vertical direction guide portion includes a vertical direction guide frame for guiding the seat portion in the vertical direction, and the seat portion is selected by the vertical direction guide frame. A plurality of fixing parts fixed to each other, and the front / rear direction guide portion includes a front / rear direction guide frame for guiding the front / rear direction moving portion holding the seating portion in the front / rear direction. A plurality of fixing parts for selectively fixing the direction moving part are provided, and the seating part selects a fixing part provided on the vertical guide frame and adjusts the position of the seating part on the vertical guide frame. And a vertical adjustment means, wherein the front-rear direction moving part selects a fixed portion provided in the front-rear direction guide frame and It comprises longitudinal adjustment means for adjusting the position of the seat in the backward guide frame.

  According to a fourth aspect of the present invention, in the training machine according to the third aspect, the vertical guide frame is formed with a vertical adjustment hole selected by the vertical adjustment means as a fixing portion to which the seat portion is fixed. The vertical adjustment means includes a pin for fitting into the vertical adjustment hole and a vertical adjustment lever for fitting the pin into the hole and releasing it, and the front-rear direction guide frame includes the front-rear direction moving portion. A front / rear adjustment hole selected by the front / rear adjusting means is formed as a fixing portion to which the front / rear adjusting means is fixed, while the front / rear adjusting means is inserted into the front / rear adjustment hole and the pin is inserted into the hole. A lever for adjusting the front and rear to release

  According to the training machine of Claims 1-4, the position where the person who trains the deltoid muscle (front part), the great pectoral muscle, and the triceps surae can be adjusted to the up-down direction and the front-back direction. In particular, according to the training machine of claims 2 to 4, the seating position can be arbitrarily selected in the vertical direction and the front-rear direction.

  As described above, according to the first to fourth aspects of the invention, the position where the person performing the training of the deltoid muscle (front part), the great pectoral muscle and the triceps can be adjusted in the vertical direction and the front-rear direction. Training of the deltoid muscle (front part), the great pectoral muscle, and the triceps muscle according to the physique of the person performing the training can be performed.

  FIG. 1 is a side view showing a training machine according to an embodiment of the present invention.

  A training machine 2 shown in FIG. 1 is a training machine for the deltoid muscle (front part), the great pectoral muscle, and the triceps, and includes an operation unit 3 and a load loading device 4. The operation unit 3 includes operation arms 5 a and 5 b and a seating unit 6.

  As shown in FIG. 4, the operation arms 5 a and 5 b have a pair of relations and are connected to rotary shafts 8 a and 8 b erected on the frame 7 that supports the load device 4 and the seating portion 6. . The rotating shaft 8 a and the rotating shaft 8 b are juxtaposed below the seating portion 6. Further, the rotation shaft 8a and the rotation shaft 8b are installed so that they can rotate in conjunction with each other and have different rotation directions as shown in FIG. 4 illustrating the operation example of the training machine 1.

  The operation arm 5a is an operation arm that is operated by the right hand of the user 30 who trains the deltoid muscle (front part), the great pectoral muscle, and the triceps surae shown in FIG. 4, and is gripped with the main arm 31a. 32a. The lower end of the main arm 31a is fixed to the peripheral side surface of the rotating shaft 8a. The grip 32a is erected on a connecting plate 34a that is pivotally attached to the upper end portion of the main arm 31a via a rotary shaft 33a. The position of the grip 32a can be changed around the rotation shaft 33a.

  The operation arm 5b is an operation arm operated by the left hand of the user 30, and includes a main arm 31b fixed to the rotating shaft 8b shown in FIG. 4 and a grip 32b provided on one end side of the main arm 31b. It consists of. As with the main arm 31a, the lower end of the main arm 31b is fixed to the peripheral side surface of the rotating shaft 8b. Similarly to the grip 32a, the grip 32b is also erected on a connection plate 34b that is pivotally attached to the upper end portion of the main arm 31b via a rotary shaft 33b. The position of the grip 32b can be changed around the rotation shaft 33b.

  A driving portion 37 to which a rope 36 connected to a sheave 35 that is pivotally supported on the frame 7 is connected to either one of the rotating shafts 8a and 8b. In the illustrated embodiment, a drive unit 37 is provided on the rotary shaft 8a. The drive unit 37 is formed in a substantially fan-shaped disk shape. A groove 38 is formed on the peripheral side surface of the drive unit 37 in which the rope 36 is wound with the rotation of the drive unit 37.

  As shown in FIG. 1, the seating portion 6 includes a seat 41, a waist pad 42, a back pad 43, and a seat frame 44. The waist pad 42 and the back pad 43 are fixed to the seat frame 44, while the seat 41 is fixed to the upper surface of the seat connecting portion 45 connected to the lower end portion of the seat frame 44. In addition, a footrest 46 and an assist bar 47 on which the user 30 can rest are disposed in front of the seating portion 6. The footrest 46 is fixed to the frame 7. The assist bar 47 is a bar for rotating the rotating shaft 48 via the connecting rod 48 to adjust the start of rotation of the operation arms 5a and 5b to the front. The assist bar 47 is supported by a rotating shaft 49 supported on the frame 7 and is connected to the rotating shafts 8 a and 8 b via a connecting rod 48.

  The seat portion 6 is supported by a vertical guide frame 51 and a front / rear direction guide frame 52. The vertical guide frame 51 supports the seat portion 6 and guides the seat portion 6 in the vertical direction when the position of the seat portion 6 is changed in the vertical direction. The front-rear direction guide frame 52 supports the seat portion 6 and guides the seat portion 6 in the front-rear direction when the position of the seat portion 6 is changed in the front-rear direction.

  The vertical guide frame 51 is inclined and supported rearwardly at an appropriate angle by a support frame 54 and a reinforcement frame 55 on the upper surface of a front / rear moving sleeve 53 provided in the front / rear direction guide frame 52. The support frame 54 is connected to the back-and-forth moving sleeve 53 via a connecting frame 56. The installation height of the seating portion 6 in the vertical guide frame 51 can be adjusted by a vertical adjustment lever 65 of a vertical adjustment means described later.

  The vertical guide frame 51 is provided with a vertical moving sleeve 57 that holds the seating portion 6 so as to be movable in the longitudinal direction of the vertical guide frame 51. That is, the vertical movement sleeve 57 includes a slide guide 59 that slides on a rail 58 provided along the longitudinal direction on the back surface of the vertical guide frame 51. On the other hand, a pin 61 operated by a vertical adjustment lever 65 is fitted into the front surface of the vertical guide frame 51 (the surface to which the seat connecting portion 45 is connected) as a fixing portion for selectively fixing the seating portion 6. A plurality of holes 511 are formed so as to be arranged along the longitudinal direction of the vertical guide frame 51. An adjustment plate 60 in which holes 601 communicating with the plurality of holes 511 are formed on the front surface of the vertical guide frame 51.

  The front-rear direction guide frame 52 is supported in parallel with the floor surface in the frame 7. The front-rear direction guide frame 52 is provided with a front-rear moving sleeve 53 that holds the seating portion 6 so as to be movable in the longitudinal direction of the front-rear direction guide frame 52. The position of the seating portion 6 in the front / rear direction guide frame 52 can be adjusted by a front / rear adjustment lever 86 of a front / rear adjustment means described later.

  FIG. 2A is a cross-sectional view showing the configuration and operation example of the vertical adjustment means of the seating portion 6 (operation when fixing the seating portion 6), and FIG. 2B is an operation example of the vertical adjustment means. It is sectional drawing which showed (operation | movement when moving the seating part 6).

  The seat connecting portion 45 is provided with a vertical adjustment means for the seating portion 6. The vertical adjustment means includes a pin 61 to be inserted into holes 601 and 511 formed in the adjustment plate 60 and the vertical guide frame 51, and a rotor 62 to insert and release the pin 61 in the holes 601 and 511. A shaft 63 for rotating the rotor 62, a rotor 64 for operating the shaft 63, and a vertical adjustment lever 65 for rotating the rotor 64 are provided.

  The pin 61 is inserted through a cylindrical body 66 installed on the rear side wall portion 451 of the seat connecting portion 45. The cylinder 66 is installed on the rear side wall 451 so that the axis thereof is perpendicular to the adjustment plate 60. The cylindrical body 66 accommodates a spring 67 as an elastic body that biases the pin 61 toward the adjustment plate 60. On the other hand, the pin 61 includes a stopper 68 for receiving the contact pressure of the spring 67. A connector 69 pivotally attached to one end of the rotor 62 is pivotally attached to the end of the pin 61 discharged from the end face of the cylindrical body 66. The rotor 62 is pivotally supported by a rotating shaft 71 on a support body 70 installed on the outer peripheral surface of the cylindrical body 66. The shaft 63 is loosely supported by a sleeve 72 disposed below the ceiling portion 452 of the seat connecting portion 45. The sleeve 72 holds the shaft 63 so that the shaft 63 can reciprocate substantially perpendicularly to the adjustment plate 60. The rotor 64 is connected to the bearing portion 74 of the rotating shaft 73 supported on the inner surface of the side wall portion 454 near the front side wall portion 453 of the seat coupling portion 45, and receives the contact pressure of the shaft 63 and receives the front side wall portion. The inner surface of 453 is abutted and supported. The vertical adjustment lever 65 is connected to the bearing portion 74. The vertical adjustment lever 65 is connected to the bearing portion 74 so as to protrude forward from the seat coupling portion 45. The rotation range of the vertical adjustment lever 65 is limited by the front side wall portion 453. On the other hand, the operating range of the vertically moving sleeve 57 is limited by a stopper 75 provided on the support frame 54.

  FIG. 3A is a cross-sectional view showing the configuration and operation example (operation when fixing the seating portion 6) of the front-rear adjustment means of the seating portion 6, and FIG. 3B is an operation example of the front-rear adjustment means. It is sectional drawing which showed (operation | movement when moving the seating part 6).

  The front-rear adjusting means of the seating portion 6 is provided in a front-rear moving sleeve 53 provided on the front-rear direction guide frame 52. The front / rear moving sleeve 53 is provided so as to be movable along the longitudinal direction of the front / rear direction guide frame 52. That is, the front / rear moving sleeve 53 forms a cylinder through which the front / rear direction guide frame 52 is inserted. A slide guide 82 is provided on the inner side surface of the bottom surface portion 531 of the front / rear moving sleeve 53 to slide the rail 81 provided along the longitudinal direction on the lower surface of the front / rear direction guide frame 52. The slide guide 82 is formed with a groove 821 that fits with the rail 81 and slides on the rail 81. On the other hand, a plurality of holes 831 into which the pins 84 operated by the front / rear adjustment lever 86 of the front / rear adjustment means are fitted as fixing portions to which the seating portion 6 is selectively fixed, on the outer surface of the front / rear direction guide frame 52. An adjustment plate 83 in which is formed is installed. A plurality of holes 831 formed in the adjustment plate 83 are arranged along the longitudinal direction of the adjustment plate 83, that is, the longitudinal direction of the front-rear direction guide frame 52.

  As shown in FIG. 3A, the front / rear adjustment means includes a pin 84 that is inserted into a hole 831 formed in the adjustment plate 83, and a rotor that inserts and releases the pin 84 into the hole 831. 85 and a front / rear adjustment lever 86 for rotating the rotor 85.

  The pin 84 is inserted through a cylindrical body 87 installed on the side wall portion 532 of the longitudinally moving sleeve 53. The cylinder 87 is installed on the side wall portion 532 so that the axis thereof is perpendicular to the adjustment plate 83. The cylindrical body 87 accommodates a spring 88 as an elastic body that biases the pin 84 toward the adjustment plate 83 side. On the other hand, the pin 84 includes a stopper 89 for receiving the contact pressure of the spring 88. In addition, a connector 90 that is pivotally attached to one end of the rotor 85 is pivotally attached to the end of the pin 84 that is discharged from the end face of the cylinder 87. The rotor 85 is connected to a rotating shaft 92 supported by a support 91 fixed to the moving sleeve 53 or the connecting frame 56. The front / rear adjustment lever 86 is connected to the rotary shaft 92 via a connector 93.

  As shown in FIG. 1, the load load device 4 includes a weight 101 that can arbitrarily set a load load in the frame 7. The weight 101 is placed on a reinforcing frame (not shown) installed in the weight frame 102. The weight frame 102 is supported by the frame 7 on the floor surface. The weight 101 is composed of a plurality of weight blocks. The load on the weight 101 is set by selecting a plurality of weight blocks according to the demand of the user who uses the training machine 2. A rope 103 is connected to the weight 101. The rope 103 is connected to a circular cam 108 supported on the frame 7 through guide pulleys 104 and 105 installed in the load device 4. The circular cam 108 is connected to one end of a rotating shaft (not shown) supported on the frame 7. A sheave 35 is connected to the other end of the rotating shaft. The circular cam 108 has a larger diameter than the sheave 35. The sheave 35 is connected to the rope 36 connected to the drive unit 37 as described above. Although not shown, a pair of slide rails are provided in the weight frame 102 to stably drive the lifting and lowering of the weight 101 set with a load. Further, a cover 106 is attached to the weight frame 102 so that a hand or the like is not caught between the weight blocks. However, the cover 106 has a clearance enough to set and confirm the load of the weight 101. A box 107 that shields the guide pulleys 104 and 105 is attached to the upper portion of the weight frame 102. In box 107, information on how to use the training machine 2 is posted.

  An example of the operation of the training machine 2 will be described with reference to FIGS.

  When the training machine 2 starts training the deltoid muscle (front part), the great pectoral muscles, and the triceps, first of all, the vertical direction of the seat 3 shown in FIG. 1 according to the physique of the user who performs the training And the position in the front-rear direction is adjusted. The vertical position of the seating portion 3 is adjusted by operating the vertical adjustment lever 65. The position of the seating portion 3 in the front-rear direction is adjusted by operating the front-rear adjustment lever 86.

  For example, when the seating portion 6 is positioned in the vertical direction, the height is adjusted by operating the vertical adjustment lever 65 shown in FIG. That is, when the up / down adjustment lever 65 shown in FIG. 2A is operated to rotate upward about the rotation shaft 73 as indicated by the arrow, the rotor 64 is centered on the rotation shaft 73. Rotate clockwise. The shaft 63 receives the contact pressure of the rotating rotor 64 and moves in the direction of the adjusting plate 60 along the axis of the sleeve 72. The rotor 62 receives the contact pressure of the shaft 63 and rotates counterclockwise about the rotation shaft 71. Since the pin 61 is connected to the rotor 62 via the connecting tool 69, when the rotor 62 rotates counterclockwise about the rotation shaft 71, the pin 61 is shown in FIG. Is pulled out from the adjustment plate 60 which is a hole for vertical adjustment and the holes 601 and 511 of the vertical guide frame 51. Next, when the seat connecting portion 45 is moved to guide the pin 61 into the holes 601 and 511 required by the user and then the vertical adjustment lever 65 is released, the stopper 68 receives the contact pressure of the spring 67 in the cylindrical body 66. To abut against the adjustment plate 60. At this time, the pin 61 is inserted into the required holes 601 and 511. In this way, the seating portion 6 shown in FIG. 1 is fixed at a predetermined position of the vertical guide frame 51.

  On the other hand, when adjusting the position of the seating portion 6 in the front-rear direction, the position is adjusted by operating the front-rear adjustment lever 86 shown in FIG. That is, when the front / rear adjustment lever 86 shown in FIG. 3A is operated to rotate upward about the rotation shaft 92 as indicated by the arrow, the rotor 85 is centered on the rotation shaft 92. Turn counterclockwise. Since the pin 84 is connected to the rotor 85 via the connector 90, when the rotor 85 rotates counterclockwise about the rotation shaft 92, the pin 84 is shown in FIG. Is pulled out from the hole 831 of the adjustment plate 83 which is a hole for front and rear adjustment. When the longitudinal adjustment lever 86 is released after the pin 84 is guided to the hole 831 requested by the user by moving the longitudinal movement sleeve 53, the stopper 89 receives the contact pressure of the spring 88 in the cylindrical body 87. To contact the adjustment plate 83. At this time, the pin 84 is fitted into the required hole 831. In this way, the seating portion 6 is fixed at a predetermined position of the front-rear direction guide frame 52.

  As shown in FIG. 4, the user 30 places the waist and back on the waist pad 42 and the back pad 43 shown in FIG. 1 and puts his feet on the footrest 46. When the grips 32a and 32b are pushed forward as indicated by arrows, the main arms 31a and 31b rotate about the rotation shafts 8a and 8b. At this time, the weight of the weight 101 set in advance by the load loading device 4 is applied to the muscles of the specific part of the user 30, that is, the deltoid muscle (front part), the pectoralis major muscle and the triceps surae. Training of the muscle of the specific part is possible. Also, as shown in FIG. 5, when the grips 32a and 32b are slowly returned in the direction of the arrow before the elbow of the user 30 is fully extended, the load of the set weight 101 is applied to the muscle of the specific part, and further. It is possible to effectively train the muscle at the specific part.

  As apparent from the above, the training machine 2 can train the deltoid muscle (front part), the great pectoral muscle and the triceps according to the physique of the user.

The side view showing the training machine concerning one embodiment of the present invention. (A) is sectional drawing which showed the structure and operation example (operation | movement when fixing the said seating part) of the seating part vertical adjustment means with which the said training machine was equipped, (b) is the operation example of the said vertical adjustment means. Sectional drawing which showed (operation | movement when moving the said seating part). (A) is sectional drawing which showed the structure and the operation example (operation | movement when fixing the said seating part) of the seating part front-and-back adjustment means with which the said training machine comprised, (b) is the operation example of the said front-and-back adjustment means. Sectional drawing which showed (operation | movement when moving the said seating part). Explanatory drawing of the operation example of the said training machine. Explanatory drawing of the operation example of the said training machine. The perspective view which showed the conventional training machine.

Explanation of symbols

2 ... Training machine 3 ... Operation part 4 ... Load loading devices 5a, 5b ... Operation arm, 31a, 31b ... Main arm, 32a, 32b ... Grip, 33a, 33b ... Rotating shaft, 34a, 34b ... Connection plate 6 ... Seating part 41 ... Seat, 42 ... Lumbar pad, 43 ... Back pad, 44 ... Seat frame, 45 ... Seat connecting part 7 ... Frame 8a, 8b ... Rotating shaft 51 ... Vertical guide frame, 52 ... Front / rear guide frame, 53 ... forward / backward movement sleeve, 54 ... support frame, 55 ... reinforcing frame, 56 ... connection frame, 57 ... vertical movement sleeve, 58, 81 ... rail, 59, 82 ... slide guide 60 ... adjustment plate, 601 ... hole, 61 ... Pin 62 62 Rotor 63 Shaft 64 Rotor 65 Vertical adjustment lever 83 Adjustment plate 831 ... Hole, 84 ... Pin, 85 ... Rotor, 86 ... Front / rear adjustment lever

Claims (4)

A sitting section on which a person who performs training for the deltoid muscle (front part), the pectoralis major muscle and the triceps,
An up-down direction guide part that supports the position of the seating part to be adjustable in the up-down direction;
A training machine comprising: a front-rear direction guide part that supports the position of the seating part so as to be adjustable in the front-rear direction. Vertical adjustment means for adjusting the position of the seating portion in the vertical guide portion;
The training machine according to claim 1, further comprising front / rear adjustment means for adjusting a position of the seating portion in the front / rear direction guide portion. The vertical direction guide portion includes a vertical direction guide frame that guides the seating portion in the vertical direction, and the vertical direction guide frame is provided with a plurality of fixing portions for selectively fixing the seating portion,
The front-rear direction guide portion includes a front-rear direction guide frame that guides the front-rear direction movement portion that holds the seating portion in the front-rear direction, and the fixed portion where the front-rear direction movement portion is selectively fixed to the front-rear direction guide frame Are provided,
The seating portion includes a vertical adjustment means for selecting a fixing portion provided in the vertical guide frame and adjusting the position of the seating portion in the vertical guide frame,
2. The front-rear direction moving part includes front-rear adjustment means for selecting a fixing portion provided in the front-rear direction guide frame and adjusting the position of the seating part in the front-rear direction guide frame. The training machine described. The vertical guide frame is formed with a vertical adjustment hole selected by the vertical adjustment means as a fixing portion to which the seating portion is fixed, while the vertical adjustment means is inserted into the vertical adjustment hole. A pin and a lever for adjusting the vertical position for inserting the pin into the hole and releasing it,
The front / rear direction guide frame is formed with a front / rear adjustment hole selected by the front / rear adjustment means as a fixed portion to which the front / rear direction moving portion is fixed, while the front / rear adjustment means is inserted into the front / rear adjustment hole. 4. A training machine according to claim 3, further comprising a front and rear adjustment lever for inserting and releasing the pin for insertion into the hole.

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