JPH07213644A - Training device to simulate free weight squat repetition - Google Patents

Abstract

PURPOSE: To make a training device safe and easy to use, by providing with a frame secured to a floor a foot supporter, and moving a platform and giving a resistance to moving to enable a user who is positioned with his feet on the foot supporter and with his back applied to the seat of the platform to take a prescribed posture. CONSTITUTION: A frame 10 having a foot supporter 18 is installed on a floor, and a platform 24 having a seat 26 for supporting a user's 28 back and head part is disposed rotatably by a rotating arm 30 on the frame 10. The platform 24 is enabled to rotate between a first position for the user on the set 26 takes a posture with his feet in contact with the foot supporter 18 and his knees and waist bent approximately at 90 deg.C and a second position for him to take a posture with his legs fully extended. An elastomer weight strap 48 disposed between the rotating arm 30 and a longitudinal element of the frame 10 is adapted to give resistance to a movement of this platform 24.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to resistance-type training devices, and more particularly to trauma of the upper body normally associated with the exercise of free-weight squats by the user. And a device that can be simulated without risk.

[0002]

Squat is a free weight exercise in which the user first bends the leg to lower the body by making the knees and hips about 90 ° and then straightens the leg again. The barbell rests on the shoulder directly behind the user's neck and is supported by the arm while the user is awake. This exercise is probably the most effective exercise for building up the lower body muscles overall and is often used by experienced weight lifters.

[0003]

However, this training is one of the most painful and disability trainings. Because the legs can lift a large amount of weight, yet the weight must be supported by the lifter's arms and shoulders. In addition, this training is one of the most dangerous. Because typically
This is because when the leg of the lifter is fully extended, it must be finished by placing the barbell on the rack.
Moreover, it becomes difficult to get this position when the lifter approaches his limit. Moreover, this weight causes the lifter to throw himself forward, which causes the lifter to lose body balance. Therefore, when performing a squat, it is usually necessary to have two caretakers. As a result, this training cannot be used by anyone and can be done by a very experienced weightlifter. Even then, the weights used are often smaller than the legs can be lifted, and thus not fully effective.

Training devices have been developed to perform squats, but prior art devices of this type are complex and expensive. They also utilize cables, cams or similar mechanisms to lift resistance weights. Therefore, the weights rise and fall with each iteration, which must occur at a fairly slow speed, and they have little or no body oxygen-consuming action. A typical prior art squat device is described in US Pat. No. 45111.
No. 37.

[0005]

SUMMARY OF THE INVENTION The present invention provides a platform having a seat for supporting a user's back and head.
The drawbacks of the prior art are overcome by providing a training device that is rotatably mounted to a frame that rests on the floor. This is accomplished through a pivot arm that is fixedly attached to the platform and rotatably attached to the frame. With the user's foot resting on a foot support that extends upwards from the base, the user's leg lying on the seat with the knee and hip flexed at approximately 90 ° The platform and pivot arm are arranged so that the platform can be moved between a first position at and a second position in which the user's legs are substantially fully extended.

The resistance device resists movement of the platform between a first position and a second position. In a preferred embodiment of the present invention, the resistance device is an elastomeric weight strap located between the base and the pivot arm and a weight removably mounted on the platform. These two types of resistance devices can be used individually or in combination with each other. The weight provides a constant resistance over the full range of travel of the platform, and the weight strap provides a variable resistance so that different results are obtained depending on which type of resistance is utilized. In addition, the use of both types of resistors gives different results depending on their relative amounts. Another preferred embodiment includes a stop that limits the travel of the platform past the desired first and second positions.

[0007] Regardless of which type of resistance device is used, the device eliminates the need to carry a barbell on the shoulders and arms, and thus eliminates the pain and upper body disability typically associated with doing squats. . For the same reason, the risk of disability disappears. Finally, the spinning platform imparts momentum that allows it to repeat at a faster pace than it would with a free weight, resulting in much more oxygen consuming activity in the body than can be obtained with a free weight. Occurs.

[0008]

Embodiments of the training apparatus according to the present invention will be described in more detail with reference to the drawings. FIG. 1 shows a preferred embodiment of a training device according to the invention, which training device comprises a frame 10 mounted on the floor and acting as a base for the device. The base has a longitudinal element 12 and a transverse element 14 attached to one of the ends of the longitudinal element. The resulting t-shape imparts tilt stability without undue weight and allows the device to move alone. The vertical element 16 extends upward from the end of the vertical element. In this example, all the frame elements described consist of rectangular steel tubes, the longitudinal elements 12 and the vertical elements 16 being formed by bending a single tube at 90 °. The transverse element is attached to the longitudinal element by welding.

The rectangular foot support 18 is the vertical element 1
Attach to 6. Preferably, the foot support 18 has a collar 20 slidably mounted on the vertical element. A set screw 22 extends through the collar 20 and contacts the vertical element to secure the foot support in position on the vertical element.

The platform 24, which is located above the longitudinal element 12, has a seat 26 at the end furthest from the vertical element 16. As shown in FIGS. 2 and 3, the seat 26 has a length and width that can support the head and back of a person 28 using the device. The platform is attached to the frame 10 through a pivot arm 30. One end of the pivot arm is fixed to the platform and the other end is
It is rotatably attached to the frame by means such as plates 32 and pins 34.

The platform and pivot arm are arranged for movement of the platform between a first position shown in FIG. 2 and a second position shown in FIG. When in the first position, the person 28 positioned on the seat has approximately 90 knees and hips when positioning the foot on the foot support 18.
Will have legs bent at °. A shorter person would have to position himself on the seat 26 closer to the vertical element 16 than a tall person. When so positioned by the user, the handle 36 projects from each lateral position of the platform that can be grasped by the user. The platform is moved from this first position to a second position where the user straightens the leg until the leg is almost fully extended as shown in FIG. By gripping the handle 36, the user
When doing this, it will not slide along the seat.

When moving between the first position and the second position,
Stops shall be provided to limit the travel of the platform. As shown in FIGS. 4 and 5, the front stop 38
Is attached to a post 40, which projects upwards from the frame between the plates 32 and allows the pivot pin 3 to
Located near the front of 4. The front stop has a threaded rod 42 that mates with a threaded hole in post 40 and has a pad 44 attached to its distal end.
Have. The lock nut 46 on the rod 42 can be tightened on the pivot to lock the rod in the desired position. With this arrangement, the platform
You can adjust how far you can move forward. The reason will be explained later. The rear stop 62 has a bar 64 that is just behind the pivot pin 34 between the plates 32. When the platform is in the desired position for the second position,
The height of the bar 64 is set so as to engage with the rotating arm 30. Although these figures describe the platform at an angle of about 30 ° with respect to the horizontal when in the first position and horizontally when in the second position, these positions are not limiting. However, the described position is preferred in order to provide a device which is painless and easy to use.

Resistance is provided to movement of the platform between the first and second positions to provide the desired weight lifting effect. In the figure, two types of resistors are shown. The first type of resistance is provided by the elastomeric weight strap 48. The weight strap has a hole 50 at each end. The hole at one end has a peg 5 protruding from the post 40.
The pin 54 protruding from the rotating arm 30 is fitted into the hole at the other end. When the platform is in the first position shown in FIG. 4, the weight strap is relaxed or almost relaxed, and when the platform is in the second position shown in FIG. Place pins.

A second type of resistance is provided by barbell 56, which is attached to the front end of platform 24. The barbell bar 58 fits into a hole in the platform and the weight plate 60 is releasably attached to the bar 58. The weight plate is on the floor when the platform is in the first position. Since different size weights have different diameters, the position of the platform when in the first position will vary with the weights. For this reason, regardless of the size of the plate used, just before the plate abuts the floor,
The front stop 38 can be adjusted to allow it to engage the pivot arm.

The weight straps and weight plates can be used individually or in combination. The weight plate provides a constant resistance over the travel of the platform, and the weight strap provides a variable resistance. Therefore, depending on the arrangement of resistors used, different sensations can be experienced. Resistance devices such as weight straps or weight plates are preferred to provide resistance in two directions as the platform moves in both directions, but one-way resistance devices such as piston cylinders can also be utilized. Let's do it.

In another embodiment of the invention shown in FIG. 6, the vertical element 16a is tilted slightly forward from vertical. In the illustrated embodiment, the vertical elements are offset from the vertical by approximately 20 °. In addition, since the platform 24a is arranged at a position slightly steeper than the platform 24, the rotating arm 30a is
It is slightly larger than the rotating arm 30. The aforementioned changes in the angle of the vertical element and the pivoting arm make it easier to move the device during use, and when the device is in the first position it is closer to the 90 ° position where bending of the user's waist and knees is desirable. To be To prevent the pivot arm 30a from becoming too long, the post 40a is longer than the post 40 and the plate 32a is attached to the post rather than the horizontal element 12.

In operation, the desired amount of resistance and mixing between the plate and the weight strap are selected and the proper plate 60 and strap 48 are attached to the device. This mixing can include weight straps only, weight plates only, or a combination thereof. Since the plates provide a constant resistance and the weight straps provide a variable resistance, the relative portion of the total resistance force, each of which dramatically results, affects how the device operates. The user 28 then lies on the seat 26 with his foot on the foot support 18 and the leg is bent to approximately 90 ° for both the knee and hip as shown in FIGS. As indicated above, short users would have to lower themselves on the seat to achieve this orientation, compared to tall people. Once in proper position on the seat, the user extends his legs to move platform 24 to the second position shown in FIG. Then, the user bends the leg and returns to the first position. When doing this, the user can grip the handle 36 to prevent the user from sliding on the seat. However, this is only when a high level of resistance is required. Because friction tends to prevent such sliding.

As can be seen from the figure, if the user performs squat iterations in free weight, this cycle causes the user to experience essentially the same range of motion that occurs. However, since the user does not support the weight on the arms or shoulders, but rather absorbs the entire weight on the legs, there is usually no squat related distress or upper body stress. Moreover, since the user does not lift the weight, there is no potential for obstacles normally associated with doing squats.

When the device is cycled, the swinging action achieved by the user and the platform
A certain amount of momentum occurs due to on or rocking motion. This amount of exercise allows the user to perform more iterations than is possible with the free weights, and exercising with this device consumes much more oxygen in the body than exercising with free weights.

The above description is merely an example of the present invention, and various modifications can be made within the scope of the claims.

[Brief description of drawings]

FIG. 1 is a perspective view of a training device implemented in accordance with the present invention.

2 is a side view of the training device of FIG. 1 in a first position, with the user shown in phantom.

3 is a side view of the training device of FIG. 1 in a second position, with the user shown in phantom.

FIG. 4 is a partial cutaway view of the training device in the first position, partially broken away to show details not visible from the side.

FIG. 5 is a partial cutaway view of the training device in the second position, partially broken away to show details not visible from the side.

FIG. 6 is a side view of the training apparatus according to another embodiment of the present invention in the same first position as in FIG.

[Explanation of symbols]

 10 Frame 12 Longitudinal element 14 Lateral element 16, 16a Vertical element 18 Foot support 20 Collar 22 Fixing screw 24, 24a Platform 26 Seat 28 User 30, 30a Pivoting arm 32, 32a Plate 34 Pin 36 Handle 38 Stopper 40,40a Post 42 Threaded Rod 44 Pad 46 Lock Nut 48 Weight Strap 50 Hole 52 Peg 54 Pin 56 Barbell 58 Barbell Bar 60 Weight Plate

Claims (8)

[Claims] 1. A training device for simulating free-weight squat iterations, comprising: (a) a frame on a floor for supporting the remaining elements of the device; and (b) a user's back and head. (C) a pivot arm fixedly attached to the platform and rotatably attached to the frame, (d) a foot support attached to the frame, and (e) the rotation The moving arm is configured such that when the user's foot comes into contact with the foot support, the user's foot positioned above the user's foot is bent to approximately 90 ° both at the knee and the waist, and the user's foot is at the first position. Allowing the platform to move between a second position in which the user's leg positioned thereon is in substantially full extension when in contact with the foot support, and (f) from the first position to the first position. Up to two positions Training apparatus characterized by having a resistor device for resisting movement of the rat home. 2. The training device of claim 1, wherein the resistance device is at least one elastomeric weight strap. 3. The training device according to claim 2, wherein the weight strap is arranged between the rotating arm and the frame. 4. The resistance device is a weight removably attached to the platform.
The training device described in. 5. The training device of claim 4, wherein the resistance device further comprises at least one elastomeric weight strap. 6. The training device according to claim 1, further comprising a stopper for restricting movement of the rotating arm in both directions. 7. The platform extends beyond the user's back so that the weight rests on the floor when the platform is in the first position.
The training device described in. 8. When the user's arm is almost fully extended,
The training device according to claim 1, wherein a handle is arranged at a position of a platform which is positioned on the platform and can be grasped by both hands of a user.