TW202106350A - Sliding apparatus for fitness equipment capable of adjusting the relative position of roller and wheel axle corresponding to deformation of guiding rails thereby improving movement smoothness - Google Patents

Abstract

The invention relates to a sliding apparatus for fitness equipment, including a carrying platform, a first wheel set and a second wheel set. The first wheel set and the second wheel set are located on two opposite sides of the carrying platform. The first wheel set has a first roller and a first wheel axle for mounting the first roller on the carrying platform. The first roller is incapable of moving along an axial direction of the first wheel axle. The second wheel set has a second roller and a second wheel axle for mounting the second roller on the carrying platform. The second roller is capable of moving along an axial direction of the second wheel axle. Accordingly, when moving the carrying platform along two guiding rails by utilizing the first roller and the second roller, the relative position of the second roller and the second wheel axle may be adjusted corresponding to deformation of the two guiding rails caused by force application, thereby improving the movement smoothness.

Description

Sliding device for fitness equipment

The present invention relates to fitness equipment, in particular to a sliding device for fitness equipment.

To put it simply, the Pilates yoga bed mainly provides a platform that can move forward and backward, allowing users to train the stability and coordination of the core muscles in a variety of postures such as lying, sitting, kneeling, lying or standing on the aforementioned platform, and It can be further equipped with elements such as tension springs, bounce frames or drawstrings to adjust training intensity and increase the variability of exercises. Related prior art such as US 5,792,033, US 6,186,929, US 6,527,685 and US 6,926,650 patent cases.

In order to allow the platform to move back and forth, a pair of rollers are arranged on the left and right sides of the platform, and then the left and right pairs of rollers are used to roll along the two guide rails. However, because the platform bears the weight of the user, during the operation of the platform The weight it bears is transferred to the guide rail through the roller, so that the two guide rails may appear non-parallel under the force. This will easily cause the roller and the guide rail to interfere with each other, and even cause the roller to wear, vibrate or sound. Undesirable phenomena, and then affect the smoothness of the aforementioned platform.

The main purpose of the present invention is to provide a sliding device for fitness equipment, which can improve the smoothness of operation.

In order to achieve the above main objective, the sliding device of the present invention includes a bearing platform, a first wheel set, and a second wheel set. The bearing platform is located between a first rail and a second rail that are parallel to each other, the first wheel set and the second wheel set are located on two opposite sides of the bearing platform, and the first wheel set has a first axle And a first roller, the first axle is fixed on the carrying platform, and the first roller is arranged on the first axle in a manner rotatable relative to the first axle and not movable along the axial direction of the first axle, The second wheel set has a second wheel axle and a second roller, the second wheel axle is fixed on the carrying platform, and the second wheel is rotatable relative to the second wheel axle and can be along the axis of the second wheel axle The way of moving in the direction is provided on the second axle.

It can be seen from the above that when the carrying platform uses the first and second rollers to move back and forth along the first and second guide rails, the weight of the human body borne by the carrying platform may cause the first and second guide rails to appear non-compliant. In a parallel state, the second wheel axle and the second roller will adjust their relative positions in response to the force and deformation of the first and second guide rails. As for the bearing platform, it will also be synchronized with the second wheel axle. Adjust to maintain a good transmission effect between the various components, and then achieve the purpose of improving the smoothness of the operation.

Preferably, the first axle has a first inner end, a first outer end, and a first shoulder. The first inner end is fixed to the carrying platform, and the first shoulder is adjacent to the Between the first inner and outer ends; the first wheel set further has a first outer annular washer and a first bearing, the first outer annular washer abuts against the end surface of the first outer end of the first axle , The first bearing has a first inner ring and a first outer ring fixedly connected to the first roller, the first inner ring is sleeved on the first outer end of the first axle, and the first inner ring The axial length of the ring is equal to the distance between the first shoulder of the first axle and the first outer ring washer, so that the first roller is restricted to the first shoulder of the first axle and the first outer ring Between the washers and cannot move relative to the first axle along the axial direction of the first axle.

Preferably, the second axle has a second inner end, a second outer end, and a second shoulder. The second inner end is fixed to the carrying platform, and the second shoulder is adjacent to the Between the second inner and outer ends; the second wheel set further has a second outer annular washer and a second bearing, the second outer annular washer abuts against the end surface of the second outer end of the second axle , The second bearing has a second inner ring and a second outer ring fixedly connected to the second roller, the second inner ring is sleeved on the second outer end of the second axle, and the second inner ring The axial length is smaller than the distance between the second shoulder of the second axle and the second outer annular washer, so that the second roller is allowed to lie between the second shoulder of the second axle and the second outer annular washer And move relative to the second axle along the axial direction of the second axle. In addition, the outer peripheral surface of the second outer end of the second axle can be further provided with an oil reservoir for storing lubricating oil to increase the lubrication effect of the two.

The detailed structure, characteristics, assembly or use of the sliding device for fitness equipment provided by the present invention will be described in the detailed description of the subsequent implementation. However, those with ordinary knowledge in the field of the present invention should be able to understand that the detailed description and the specific embodiments listed for implementing the present invention are only used to illustrate the present invention, and are not intended to limit the scope of the patent application of the present invention.

The applicant first explains here that throughout the specification, including the embodiments described below and the claims in the scope of the patent application, the nouns related to directionality are based on the directions in the drawings. Secondly, in the following embodiments and drawings, the same element numbers represent the same or similar elements or their structural features.

Please refer to FIGS. 1 and 2, the sliding device 10 of the present invention includes a bearing platform 20, two first wheel sets 30, and two second wheel sets 50.

The carrying platform 20 has a rectangular cushion body 21 and a support frame 22. The support frame 22 has a rectangular support plate 23. The top surface of the support plate 23 is fixed to the bottom surface of the cushion body 21. The bottom surface is provided with a first side bar 24 and a second side bar 25. The first and second side bars 24, 25 are parallel to each other and extend along the length of the support plate 23. The first side bar 24 has two front and rear ends. Each has a first vertical frame bar 26. The first vertical frame bar 26 has two first shaft holes 262 opposite to each other (as shown in FIG. 3). The front and rear ends of the second side rod 25 each have a second vertical bar. The frame bar 27 and the second vertical frame bar 27 have two second shaft holes 272 opposite to each other (as shown in FIG. 5). In addition, the front end, the center and the rear end of the first and second side bars 24 and 25 are connected together by a cross bar 28 respectively.

As shown in FIG. 2, the two first wheel sets 30 are located at the front and rear ends on the right side of the carrying platform 20. As shown in FIGS. 3 and 4, each first wheel set 30 has a first sleeve 31, a first wheel shaft 32, a first bearing 38, a first roller 42, and a first inner bolt 43. And a first outer bolt 46, of which:

The first shaft sleeve 31 is fixed in the first shaft hole 262 of the first vertical frame 26 by welding means.

The first axle 32 has a first inner end 33, a first outer end 34, and a first shoulder 35 adjacent to the first inner and outer ends 33, 34. The first axle 32 has a The inner end 33 passes through the first sleeve 31, and the inner end surface of the first shoulder 35 of the first axle 32 abuts against one end of the first sleeve 31. In addition, the first inner end 33 of the first axle 32 has a first inner screw hole 36, and the first outer end 34 of the first axle 32 has a first outer screw hole 37.

The first bearing 38 is arranged in the first roller 42 and has a first inner ring 39, a first outer ring 40 and a plurality of first balls 41 arranged between the first inner and outer rings 39 and 40. The inner ring 39 is sleeved on the first outer end 34 of the first axle 32 and abuts against the outer end surface of the first shoulder 35 of the first axle 32, and the first outer ring 40 is fixed to the inner circumference of the first roller 42 The surface allows the first roller 42 to rotate relative to the first axle 32 through the first outer ring 40.

The first inner bolt 43 is located in the first sleeve 31, passes through a first inner elastic washer 44 and a first inner annular washer 45, and is screwed in the first inner screw hole 36 of the first axle 32, so that the first The inner ring washer 45 abuts against the end surface of the first inner end 33 of the first axle 32, thus fixing the first axle 32 and the first sleeve 31 together.

The first outer bolt 46 passes through a first outer elastic washer 47 and a first outer annular washer 48 and is screwed into the first outer screw hole 37 of the first axle 32, so that the first outer annular washer 48 abuts against the first outer screw hole 37 The end surface of the first outer end 34 of the axle 32 and the outer end surface of the first inner ring 39 of the first bearing 38, so that the first inner ring 39 of the first bearing 38 and the first outer end of the first axle 32 34 are fixed together, and, as shown in FIG. 5, the distance D1 between the first outer ring washer 48 and the first shoulder 35 of the first axle 32 is equal to the axial length of the first inner ring 39 of the first bearing 38 L1, the first roller 42 is restricted by the first inner ring 39 of the first bearing 38 and will not move relative to the first axle 32 along the axial direction of the first axle 32.

As shown in FIG. 2, the two second wheel sets 50 are located at the front and rear ends of the left side of the carrying platform 20. As shown in FIGS. 6 and 7, each second wheel set 50 has a second sleeve 51, a second axle 52, a second bearing 58, a second roller 62, and a second inner bolt 63. And a second outer bolt 66, of which:

The second sleeve 51 is fixed in the second shaft hole 272 of the second vertical frame 27 by welding.

The second axle 52 has a second inner end 53, a second outer end 54 and a second shoulder 55 adjacent to the second inner and outer ends 53, 54. The second axle 52 has a second The inner end 53 passes through the second sleeve 51, and the inner end surface of the second shoulder 55 of the second axle 52 abuts against the outer end of the second sleeve 51. In addition, the second inner end of the second axle 52 The end 53 has a second inner screw hole 56, and the second outer end 54 of the second axle 52 has a second outer screw hole 57.

The second bearing 58 is arranged in the second roller 62 and has a second inner ring 59, a second outer ring 60, and a plurality of second balls 61 arranged between the second inner and outer rings 59 and 60. The inner ring 59 is sleeved on the second outer end 54 of the second axle 52, and the second outer ring 60 is fixed to the inner peripheral surface of the second roller 62 so that the second roller 62 is opposite to the second axle through the second outer ring 60 52 rotation.

The second inner bolt 63 is located in the second sleeve 51, passes through a second inner elastic washer 64 and a second inner annular washer 65, and is screwed into the second inner screw hole 56 of the second axle 52, so that the second The inner ring washer 65 abuts against the end surface of the second outer end 54 of the second axle 52, thus fixing the second axle 52 and the second sleeve 51 together.

The second outer bolt 66 passes through a second outer elastic washer 67 and a second outer annular washer 68 and is screwed into the second outer screw hole 57 of the second axle 52, so that the second outer annular washer 68 abuts against the first The end surface of the second outer end 54 of the second axle 52, and, as shown in FIG. 8, the distance D2 between the second outer ring washer 68 and the second shoulder 55 of the second axle 52 is greater than the first bearing 58 of the second bearing 58. The axial length L2 of the two inner rings 59 allows the second roller 62 together with the second bearing 58 to move relative to the second axle 52 along the axial direction of the second axle 52. In order to further increase the lubrication effect, the outer peripheral surface of the second outer end 54 of the second axle 52 has an annular oil storage groove 69. The oil storage groove 69 is filled with lubricating oil. The lubricating oil is used to increase the gap between the two Smoothness of action.

Please refer to FIG. 9 again. The fitness equipment 70 shown in the figure (here taking the PILATES yoga bed as an example, but not limited to this) includes a base 71. The base 71 has a first rail 72 and a second rail 73. The first and second guide rails 72 and 73 are parallel to each other. The rear end of the base 71 is provided with a bounce frame 74, and the front end of the base 71 is provided with a rope group 75 and an arch group 77 located above the rope group 75. The sliding device 10 of the present invention uses two first rollers 42 and two second rollers 62 to be respectively installed on the first and second guide rails 72, 73 of the base 71 (as shown in FIGS. 4 and 6), so that the carrying platform 20 It is located between the first and second guide rails 72, 73 and can move back and forth relative to the base 71. In addition, the load-bearing platform 20 is connected to two pull ropes 76 by one of the cross bars 28, and then two are arranged on the top surface of the cushion body 21 The shoulder cushion 78 and a head cushion 79 located between the two shoulder cushions 78. In addition, a plurality of tension springs 80 are arranged side by side on the bottom surface of the support plate 23. The user can change one or more of the tension springs 80 according to actual needs. One end is fixed to the rear end of the base 71.

When operating the aforementioned fitness equipment 70, the user can select appropriate actions and postures according to their own abilities or training purposes. For example, as shown in FIG. 10, the user lies on the cushion body 21, leaning the head and shoulders on the head cushion 79 and the two shoulder cushions 78 respectively, and then grasps the two grip belts 81 with both hands. With your feet against the bounce frame 74 as a support, you can pull the two pull ropes 76 with force, so that the two pull ropes 76 drive the carrying platform 20 to move away from the bounce frame 74. During the movement of the carrying platform 20, At the same time, the tension spring 80 is stretched, so that the stretched tension spring 80 begins to accumulate elastic restoring force. Once the tension is released, the elastic restoring force released by the tension spring 80 will drive the load-bearing platform 20 to reset, and repeat the operation to achieve training. effect. However, the above is only one of the operation methods. The user can change different actions and postures according to actual needs, and cooperate with the rope group 75, arch group 77 and bounce frame 74 for training, and can also adjust the pull The number of springs 80 fixed to the base 71 is used to adjust the resistance. Since how to operate is not the focus of this case, in order to save space, I will not repeat them here.

As for the carrying platform 20 moving along the first and second guide rails 72 and 73, the weight of the human body borne by the carrying platform 20 will be transmitted to the first and second guide rails 72 through the first and second wheel sets 30 and 50. 73. If the weight is too heavy, the first and second guide rails 72, 73 may appear non-parallel. At this time, the second axle 52 and the second roller 62 can respond to the first and second guide rails. The guide rails 72 and 73 are deformed by force to adjust the relative position between each other. The carrying platform 20 will also be adjusted synchronously with the second axle 52 to maintain a good transmission effect between the various components, thereby achieving the purpose of improving the smoothness of the operation. .

10: Carrying platform 21: Pad body 22: Support frame 23: Support plate 24: first sidebar 25: second side stick 26: The first vertical frame 262: first shaft hole 27: The second vertical frame 272: second shaft hole 28: Crossbar 30: first round 31: The first sleeve 32: The first axle 33: first inner end 34: The first outer end 35: first shoulder 36: The first inner screw hole 37: The first outer screw hole 38: The first bearing 39: first inner ring 40: First outer ring 41: The first ball 42: The first roller 43: The first inner bolt 44: The first inner elastic gasket 45: The first inner ring gasket 46: The first outer bolt 47: The first outer elastic gasket 48: The first outer ring gasket 50: second round group 51: second bushing 52: second axle 53: second inner end 54: second outer end 55: second shoulder 56: second inner screw hole 57: second outer screw hole 58: second bearing 59: second inner ring 60: second outer ring 61: The second ball 62: second roller 63: second inner bolt 64: second inner elastic gasket 65: second inner ring washer 66: second outer bolt 67: The second outer elastic gasket 68: The second outer ring washer 69: oil storage tank D1, D2: distance L1, L2: axial length 70: fitness equipment 71: Base 72: The first rail 73: second rail 74: Bounce Frame 75: draw rope group 76: Drawstring 77: Arch Group 78: Shoulder Cushion 79: head cushion 80: tension spring 81: Grip

Fig. 1 is a perspective view of the sliding device of the present invention. Figure 2 is a bottom view of the sliding device of the present invention cooperating with two left and right guide rails. Fig. 3 is a partial three-dimensional exploded view of the sliding device of the present invention, mainly showing the detailed structure of the first wheel set. Figure 4 is a partial cross-sectional view of Figure 2 along line 4-4. Fig. 5 is a cross-sectional view of the first wheel set provided by the sliding device of the present invention. Fig. 6 is a partial three-dimensional exploded view of the sliding device of the present invention, mainly showing the detailed structure of the second wheel set. Figure 7 is a partial cross-sectional view of Figure 2 along line 7-7. Fig. 8 is a cross-sectional view of the second wheel set provided by the sliding device of the present invention. Fig. 9 is a perspective view of the sliding device of the present invention applied to fitness equipment. Fig. 10 is a diagram of the use state of the sliding device of the present invention applied to fitness equipment.

20: Carrying platform

21: Pad body

23: Support plate

25: second side stick

27: The second vertical frame

272: second shaft hole

50: second round group

51: second bushing

52: second axle

53: second inner end

54: second outer end

55: second shoulder

56: second inner screw hole

58: second bearing

62: second roller

63: second inner bolt

64: second inner elastic gasket

65: second inner ring washer

66: second outer bolt

67: The second outer elastic gasket

68: The second outer ring washer

69: oil storage tank

Claims (9)

A sliding device for fitness equipment. The fitness equipment includes a first rail and a second rail that are parallel to each other. The sliding device includes: A carrying platform arranged between the first guide rail and the second guide rail; A first wheel set has a first wheel axle fixed on the carrying platform and a first roller rotatably arranged on the first guide rail, the first roller being rotatable relative to the first axle and not along The axial movement of the first axle is set on the first axle; and A second wheel set is located on two opposite sides of the carrying platform with the first wheel set. The second wheel set has a second wheel axle fixed on the carrying platform and a rollably arranged on the second guide rail The second roller, the second roller is arranged on the second axle in a manner that can rotate relative to the second axle and can move along the axial direction of the second axle. The sliding device for fitness equipment according to claim 1, wherein the load-bearing platform has a cushion body and a support frame, and the support is erected on the bottom surface of the cushion body and has a first side rod and a first side rod parallel to each other. Two side rods; the first axle is fixed to the first side rod, and the second axle is fixed to the second side rod. The sliding device for fitness equipment according to claim 2, wherein the first axle has a first inner end, a first outer end and a first shoulder, and the first inner end is fixed on The first side rod of the support frame, the first shoulder is adjacent to the first inner and outer ends; the first wheel set further has a first outer ring washer and a first bearing, the first outer The annular washer abuts against the end surface of the first outer end of the first axle, the first bearing has a first inner ring and a first outer ring fixedly connected to the first roller, and the first inner ring is sleeved At the first outer end of the first axle and respectively abutting against the first shoulder of the first axle and the first outer annular washer, the axial length of the first inner ring is equal to the first axle of the first axle The distance between the shoulder and the first outer ring washer makes the first roller and the first axle unable to move relative to each other along the axial direction of the first axle. The sliding device for fitness equipment according to claim 3, wherein the first inner end of the first axle has a first inner screw hole, and the first outer end of the first axle has a first outer screw The first wheel set further has a first inner bolt and a first outer bolt. The first inner and outer bolts are respectively screwed in the first inner and outer screw holes, and the first outer bolt sets the first The outer ring washer is fixed on the end surface of the first outer end of the first axle. The sliding device for fitness equipment according to claim 4, wherein the first side rod of the support frame has a first shaft hole, the first wheel set further has a first shaft sleeve, and the first shaft sleeve penetrates Is set in the first shaft hole and sleeved on the first inner end of the first wheel axle, and one end of the shaft abuts against the first shoulder; the first inner bolt connects the first shaft sleeve to the first The first inner ends of the axles are fixed together. The sliding device for fitness equipment according to any one of claims 2 to 5, wherein the second axle has a second inner end, a second outer end and a second shoulder, the second The inner end is fixed on the second side rod of the support frame, the second shoulder is adjacent to the second inner and outer ends; the second wheel set further has a second outer ring washer and a second Bearing, the second outer annular washer abuts against the end surface of the second outer end of the second axle, the second bearing has a second inner ring and a second outer ring fixedly connected to the second roller, the The second inner ring is sleeved on the second outer end of the second axle, and the axial length of the second inner ring is smaller than the distance between the second shoulder of the second axle and the second outer annular washer, The second roller and the second axle can move relative to each other along the axial direction of the second axle. The sliding device for fitness equipment according to claim 6, wherein the second inner end of the second axle has a second inner screw hole, and the second outer end of the second axle has a second outer screw The second wheel set further has a second inner bolt and a second outer bolt. The second inner and outer bolts are respectively screwed in the second inner and outer screw holes, and the second outer bolt The outer ring washer is fixed on the end surface of the second outer end of the second axle. The sliding device for fitness equipment according to claim 7, wherein the second side rod of the support frame has a second shaft hole, the second wheel set further has a second shaft sleeve, and the second shaft sleeve penetrates Is set in the second shaft hole and sleeved on the second inner end of the second wheel axle, and one end of the shaft abuts against the second shoulder; the second inner bolt connects the second shaft sleeve to the second The second inner ends of the axles are fixed together. The sliding device for fitness equipment according to claim 6, wherein the outer peripheral surface of the second outer end of the second axle has an oil storage tank, and the oil storage tank is provided with lubricating oil.

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