TWI797942B - Fitness Roller Stroke Limiting Structure - Google Patents

Abstract

The present invention is a fitness roller stroke limiting structure, comprising: a shaft, a sliding part, a roller, two handles and a limiting means, the sliding part is slipped on the outer edge of the shaft, and the sliding is restricted by an anti-rotation means The part can only slide left and right along the axial direction on the shaft, and cannot rotate relative to the shaft. The outer edge of the sliding part is provided with external threads, the roller is provided with a shaft hole, and the inner edge of the shaft hole is provided with internal threads. The inner thread is screwed with the outer thread of the slider, so that the roller is assembled on the shaft through the slider, and the slider is accommodated in the shaft hole of the roller, and can be passed through the The roller rolls back and forth and the anti-rotation means drives the slider to slide left and right along the shaft, and the two handles are respectively sleeved on both ends of the shaft to fix the roller so that the roller is limited between the two handles. The limiting means is used to block and limit the sliding distance of the slider, thereby limiting the stroke of the roller rolling back and forth; thereby, the stroke of the exercise roller can be limited, and the user's body can be easily moved during the operation. Maintain balance, effectively prevent sports injuries, and make fitness rollers more aesthetically pleasing.

Description

Fitness Roller Stroke Limiting Structure

The present invention relates to an exercise roller structure, especially to an exercise roller stroke limiting structure.

Due to changes in social patterns, life is busy, and exercise time is gradually reduced. Therefore, simple fitness equipment is usually prepared at home, so as to achieve the effect of exercise without being limited by time and space. Common exercise rollers on the market are a kind of simple exercise equipment. It is tied to two ends of a shaft to set up a handle respectively. At least one roller is pivoted between the two handles. When the user operates, use both hands. Hold the two handles, and adopt a kneeling or prone position, push and pull the roller back and forth to roll, through the stretching and bending of the body, to achieve the purpose of exercising the abdomen, waist and arms.

The common exercise rollers on the market must use a lot of abdominal muscle strength in operation, and it is a kind of difficult exercise equipment. Therefore, for users who do not exercise or have poor physical fitness, they often have no support after pushing the rollers out. And pull it back, so that the roller continues to roll forward, driving the user to lie down on the ground directly, which not only easily causes sports injuries, but also causes its applicability and practicality to be greatly affected and limited by the user's physical state, and cannot be popularized in General personal or family use.

Therefore, in recent years, there has been a drawstring type exercise roller, which includes: an exercise roller body, a drawstring and a cushion seat, the exercise roller body and the cushion seat are connected by the drawstring, and the user kneels on On the cushion seat, hold the body of the exercise roller with both hands, push and pull the body of the exercise roller back and forth to roll with the assistance of the elasticity of the pull cord, and achieve the purpose of exercising and fitness through stretching and bending of the body. However, the pull cord type exercise roller has many components, so it is inconvenient to carry and takes up space for storage, and after the draw cord is used for a period of time, it is easily oxidized and brittle, causing the draw cord to be easily broken, and even causing the user to be injured. The broken stay rope hits and generates safety problems.

Another type of exercise roller is used with a stopper. The stopper is placed on the front side of the exercise roller stroke. When the user holds the exercise roller with both hands and pushes it forward, the stopper has a braking effect. , to limit the travel of the exercise roller, to prevent the roller from continuing to roll forward, driving the user to lie down on the ground directly. However, the stopper has a definite stopper effect and must have a certain weight. Therefore, it is inconvenient to carry, takes up space for storage, and it is quite cumbersome to adjust the position during use, and the stroke of the exercise roller cannot be easily controlled.

In order to solve the above problems, a kind of exercise roller with limited travel has been created, as shown in the announcement No. I738604 "Exercise Wheel Structure", which includes: a shaft and a roller, the shaft has a The outer thread section and the two socket parts located at both ends, the two socket parts are respectively fitted with a handle, the center of the roller is provided with an inner thread hole, and the roller is passed through the inner thread hole along the The outer thread section is screwed on the shaft. When the exercise wheel is pushed forward by the user, the roller will also linearly displace along the outer thread section, so that it can be obtained according to the user's body shape. The displacement stroke of the roller starting from the handle to any position of the outer thread segment, and then starting from any position of the outer thread segment to move forward, so that the roller is displaced in the direction of the handle And abut against the stop, further achieve the braking effect of the roller, so as to facilitate the user to pull the reciprocating actuator backward.

However, in the known exercise roller with limited travel, the roller is screwed on the shaft along the outer thread section. When the exercise roller is pushed and pulled by the user, the roller will move along the outer thread. The left and right linear displacement of the segment will affect the balance of the fitness roller, which will easily cause the fitness roller to overturn, so that the user must completely rely on the muscle strength of the arms and body to control the balance at the same time. However, this kind of multi-muscle strength control is very difficult and dangerous. Cause safety problems such as muscle strain and sprain. In addition, the outer thread segment on the shaft is exposed, and it is defined by adjusting the position of the limit screw on the outer thread segment. The push-pull stroke of the user's body shape leads to poor appearance of the exercise roller.

In view of the above-mentioned shortcomings of the conventional exercise rollers that can limit the stroke, the present inventor finally came up with the present invention after thinking and creating ideas, after many discussions and sample tests, and many times of amendments and improvements.

The invention provides a stroke limiting structure of an exercise roller, comprising: a shaft; a sliding part, a sliding hole is arranged axially, and the sliding hole is slid on the outer edge of the shaft, and the sliding part is limited by an anti-rotation means. It can slide left and right along the axial direction on the shaft, and cannot rotate relative to the shaft. The outer edge of the sliding part is provided with external threads. One end of the sliding part is provided with a first positioning part, and the opposite end is provided with a second positioning part. Positioning part; a roller, a shaft hole is set in the center, and an inner thread is provided on the inner edge of the shaft hole, and the inner thread is screwed with the outer thread of the slider, so that the roller is assembled on the slider through the slider On the shaft, the slider is accommodated in the shaft hole of the roller, and the slider can be driven to slide left and right along the shaft by the roller rolling back and forth and the anti-rotation means; It is fixed at both ends of the shaft, so that the roller is limited between the two handles, and only rotates without moving left and right; and a limiting means is arranged between the sliding part and the two handles to block Limit the sliding distance of the sliding member left and right, and then limit the stroke of the roller rolling back and forth.

The main purpose of the stroke limiting structure of the fitness roller of the present invention is that when it is used, the push-pull roller rolls back and forth, drives the slider to slide left and right, cooperates with the limiting means to block and limit the distance of the slider to slide left and right, and then limits the stroke of the fitness roller, The user's body is easy to maintain balance during operation, which can effectively prevent sports injuries and improve the safety of use.

The second object of the stroke limiting structure of the exercise roller of the present invention is that the sliding part is hidden in the shaft hole of the roller, so that the exercise roller has better aesthetics.

For the rest, the preferred embodiments of the present invention will be described in detail in conjunction with the drawings as follows:

Firstly, as shown in Figures 1 to 4, the travel limiting structure of the fitness roller of the present invention includes: a shaft 10 , a sliding member 20 , a roller 30 , two grips 40 and a limiting means 50 .

The shaft 10 is in the shape of a circular tube, and at least one sliding groove 11 is arranged on the periphery along the axial direction.

The sliding member 20 is axially provided with a sliding hole 21, the inner edge of the sliding hole 21 is provided with a slider 211, the sliding member 20 is slipped on the outer edge of the shaft 10 through the sliding hole 21, and the sliding block 211 slides In the sliding groove 11 of the shaft 10, an anti-rotation means is formed, through which the sliding member 20 can only slide left and right in the axial direction on the shaft 10, and cannot move relative to the shaft 10. Rotate, and the outer edge of the slider 20 is provided with external thread 22, one end of the slider 20 is provided with a first positioning part 23, and the opposite end is provided with a second positioning part 24, the part of the first positioning part 23 Extending outward from one end of the sliding member 20 , the second positioning portion 24 extends outward from the opposite end of the sliding member 20 .

The center part of the roller 30 is provided with a hub 31, the hub 31 is provided with a shaft hole 32, the inner edge of the shaft hole 32 is provided with an internal thread 321, and the length L1 of the internal thread 321 is greater than the outer thread 22 of the slider 20. The length L2, the inner thread 321 is screwed with the outer thread 22 of the slider 20, so that the roller 30 is assembled on the shaft 10 through the slider 20, and the slider 20 is accommodated in the roller 30 In the shaft hole 32, the sliding member 20 can be driven to slide left and right along the shaft 10 by the roller 30 rolling back and forth and the anti-rotation means.

The two handles 40 are respectively sleeved on the two ends of the shaft 10 and fixed so that the roller 30 is limited between the two handles 40 and only rotates without moving left and right. An enlarged ring piece 41 is extended, and a window 411 is formed on the enlarged ring piece 41 , and a plurality of positioning grooves 412 are formed on a side of the enlarged ring piece 41 facing the roller 30 .

The limiting means 50 is arranged between the sliding part 20 and the two handles 40. In this embodiment, the limiting means 50 is provided with a limiting protruding ring 52 on the side of the second rotating wheel 51 facing the sliding part 20. The position-limiting convex ring 52 is provided with a plurality of protrusions 521 of different heights, which are used to stop and limit the sliding distance of the slider 20 to the left and right, thereby limiting the stroke of the roller 30 rolling back and forth. One side of the handle 40 is provided with a plurality of travel marks 53, and the two wheels 51 are provided with at least one elastic positioning column 54 protruding toward the direction of the handle 40, and the elastic positioning column 54 can be snapped into the positioning of the two handles 40. The slot 412 is used to position the two rotating wheels 51 .

And as shown in the fifth figure and the sixth figure, the two runners 51 of the position-limiting means 50 can be rotated to make the elastic positioning column 54 of the second runner 51 break away from the positioning groove 412 of the two handles 40, and cooperate with the two handles for observation. The stroke mark 53 displayed on the window 411 of 40, the protrusion part 521 for switching the required height is opposite to the first positioning part 23 and the second positioning part 24 of the slider 20. At this time, the elastic positioning column 54 of the second runner 51 Re-insert into the positioning groove 412 corresponding to the two grips 40, and form a limiting effect through the limiting means 50, then the sum of the travel marks 53 displayed on the windows 411 of the two grips 40 is the limited travel of the exercise roller.

When in use, as shown in Figures 7 to 9, the roller 30 is idling backward first, and the inner thread 321 of the roller 30 is screwed with the outer thread 22 of the slider 20 to drive the slider 20 on the shaft 10 along the axial direction to the left, until the first positioning part 23 of the slider 20 abuts against the protrusion part 521 of the corresponding limiting means 50, and then as shown in the tenth figure and the thirteenth figure, the user double Hold the two grips 40 in hand, take a kneeling or prone position, place the roller 30 on the ground as the starting point S of the exercise roller, push the roller 30 forward to roll, and synchronously use the inner thread 321 of the roller 30 and the sliding The screw teeth 22 outside the part 20 are screwed together, and the sliding part 20 is driven to slide axially to the right on the shaft 10 until the second positioning part 24 of the sliding part 20 abuts against the protrusion part of the corresponding limiting means 50 521, to achieve the braking effect of the roller 30, as the end point E of the exercise roller, to prevent the roller 30 from continuing to roll forward and cause the user to get down, and then pull the roller 30 backward to roll, synchronously through the roller 30 The thread 321 is screwed with the outer thread 22 of the slider 20, driving the slider 20 to slide axially to the left on the shaft 10 until the first positioning part 23 of the slider 20 abuts against the corresponding limiting means The convex block 521 of 50 returns to the starting point S of the exercise roller to achieve the braking effect of the roller 30. In this way, the roller 30 is pushed and pulled back and forth to roll back and forth to achieve the purpose of exercising the abdomen, waist and arms. The distance from the start point S of the stroke to the end point E of the stroke is the stroke D limited by the above-mentioned exercise roller. In this embodiment, the stroke D is 130 centimeters.

By the structure of above-mentioned specific embodiment, can obtain following benefit:

1. The stroke limiting structure of the fitness roller of the present invention, when it is used, when the push-pull roller 30 rolls back and forth, it will synchronously drive the slider 20 to slide and displace left and right, and cooperate with the limit means 50 to stop and limit the distance of the slider to slide left and right, thereby limiting the fitness The stroke D of the roller, and the stroke D can be easily adjusted according to needs, so that the user's body can easily maintain balance during the operation, which can effectively prevent sports injuries and improve the safety of use.

2. The stroke limiting structure of the exercise roller of the present invention, the sliding part 20 is hidden in the shaft hole 32 of the roller 30, and no screw teeth can be seen on the appearance, so that the exercise roller has better aesthetics. The product texture and value enhancement.

10: shaft

11: Sliding groove

20: Slider 21: sliding hole 211: Slider 22: External thread 23: The first positioning arrival 24: Second positioning arrival 30:Roller 31: hub 32: shaft hole 321: Internal thread 40: Grip 41: Enlarging ring piece 411: window 412: positioning slot 50: limit means 51: Runner 52: Limiting convex ring 521: Convex part 53: stroke mark 54: Elastic positioning column L1: length L2: Length D: itinerary S: Starting point of the journey E: end of travel

The first figure is a perspective view of the present invention. The second figure is a three-dimensional exploded view of the present invention. The third figure is a sectional view of the present invention. The fourth figure is another perspective view of the present invention. The fifth figure is a schematic diagram of the action of adjusting a position-limiting structure in the present invention. Figure 6 is a schematic diagram of the action of adjusting another limiting structure of the present invention. The seventh figure is a three-dimensional schematic diagram of the present invention that turning the roller makes the sliding part slide to one side and is stopped by the limiting structure. The eighth figure is a cross-sectional schematic view of the present invention that turning the roller makes the slider slide to one side and is stopped by the limiting structure. Figure 9 is an enlarged view of part A1 of Figure 8. Figure 10 is a schematic diagram (1) of the use state of the present invention. Figure 11 is a schematic diagram of the use state of the present invention (2). The twelfth figure is a schematic cross-sectional view of the present invention in which the roller rolls forward so that the sliding part slides to the other side and is stopped by the limiting structure. Figure 13 is an enlarged view of part A2 of Figure 12.

10: shaft

11: Sliding groove

20: Slider

21: sliding hole

22: External thread

23: The first positioning arrival

24: Second positioning arrival

30:Roller

31: hub

32: shaft hole

321: Internal thread

40: Grip

41: Enlarging ring piece

411: window

412: positioning slot

50: limit means

51: Runner

52: Limiting convex ring

521: Convex part

53: stroke mark

54: Elastic positioning column

Claims (5)

An exercise roller stroke limiting structure, comprising: a shaft; A sliding part, a sliding hole is provided axially, and the sliding hole is slid on the outer edge of the shaft, and the sliding part can only slide left and right on the shaft along the axial direction through an anti-rotation means, and cannot be relatively When the shaft rotates, the outer edge of the slider is provided with external threads, one end of the slider is provided with a first positioning part, and the opposite end is provided with a second positioning part; A roller, a shaft hole is arranged in the center, and an inner thread is provided on the inner edge of the shaft hole, and the inner thread is screwed with the outer thread of the slider, so that the roller is assembled on the shaft through the slider, The slider is accommodated in the shaft hole of the roller, and the slider can be driven to slide left and right along the shaft by the roller rolling back and forth and the anti-rotation means; Two handles are respectively sleeved on both ends of the shaft and fixed, so that the roller is limited between the two handles and only rotates but does not move left and right; and A position-limiting means is arranged between the sliding part and the two handles, and is used to stop and limit the sliding distance of the sliding part to the left and right, thereby limiting the forward and backward rolling stroke of the roller. The stroke limiting structure of the exercise roller as described in claim 1, wherein the anti-rotation means is to set the shaft in the shape of a circular tube, with at least one sliding groove along the axial direction on the periphery, and a sliding block on the inner edge of the sliding hole of the sliding member , the slider slides in the sliding groove of the shaft. The stroke limiting structure of the exercise roller according to claim 1, wherein the part of the first positioning abutment extends outward from one end of the slider, and the part of the second positioning abutment extends outward from the opposite end of the slider. The means are two runners arranged between the slider and the two handles, and the side of the two runners facing the slider is provided with a limiting protruding ring, and the limiting protruding ring is provided with multiple protrusions of different heights department. The stroke limiting structure of the fitness roller as described in claim 3, wherein the side of the wheel facing the handle is provided with a plurality of stroke marks, and the ends of the two handles close to the roller extend outwards to provide an enlarged ring piece, the enlarged ring A window is provided on the chip, and the stroke mark can be displayed through the window. The exercise roller stroke limiting structure as described in claim 4, wherein the runner is provided with at least one elastic positioning column protruding toward the direction of the handle, and the side of the enlarged ring piece facing the roller is provided with a plurality of positioning grooves, the The elastic positioning post can be snapped into the positioning groove, so as to position the runner.

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