CN112386883A

CN112386883A - Sliding device for fitness equipment

Info

Publication number: CN112386883A
Application number: CN201910773170.6A
Authority: CN
Inventors: 陈朝泉
Original assignee: Syndica Technologies International Co ltd
Current assignee: Syndica Technologies International Co ltd
Priority date: 2019-08-14
Filing date: 2019-08-21
Publication date: 2021-02-23
Also published as: TW202106350A; TWI704941B

Abstract

A sliding device for fitness equipment comprises a bearing platform, a first wheel set and a second wheel set, wherein the first wheel set and the second wheel set are positioned on two opposite sides of the bearing platform, the first wheel set is provided with a first roller and a first wheel shaft for mounting the first roller on the bearing platform, the first roller cannot move along the axial direction of the first wheel shaft, the second wheel set is provided with a second roller and a second wheel shaft for mounting the second roller on the bearing platform, and the second roller can move along the axial direction of the second wheel shaft. Therefore, when the bearing platform moves along the two guide rails by using the first and second rollers, the relative position of the second roller and the second wheel shaft can be adjusted according to the stress deformation of the two guide rails, thereby improving the smoothness of the operation.

Description

Sliding device for fitness equipment

Technical Field

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

Background

Briefly, the PILATES yoga bed mainly provides a platform capable of moving forward and backward, so that a user can train the stability and coordination of the core muscle group on the platform by lying, sitting, kneeling, lying prone or standing in various postures, and further can adjust the training intensity and increase the variability of the exercise by matching with elements such as a tension spring, a bouncing frame or a pull rope, and related prior arts such as US 5,792,033, US 6,186,929, US 6,527,685 and US 6,926,650.

In order to make the platform move forward and backward, a pair of rollers are respectively arranged on the left side and the right side of the platform, and then the left pair of rollers and the right pair of rollers roll along the two guide rails, but because the platform bears the weight of a user, the weight born by the platform can be transmitted to the guide rails through the rollers in the process of the platform moving, so that the two guide rails can possibly present a non-parallel state under the condition of stress, and thus the rollers and the guide rails are easily interfered, even the rollers have bad phenomena of abrasion, vibration, abnormal sound and the like, and the smooth moving degree of the platform is further influenced.

Disclosure of Invention

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

In order to achieve the above objective, the sliding device of the present invention comprises a supporting platform, a first wheel set, and a second wheel set. The bearing platform is arranged between a first guide rail and a second guide rail which are parallel to each other, the first wheel set and the second wheel set are arranged on two opposite sides of the bearing platform, the first wheel set is provided with a first wheel shaft and a first roller wheel, the first wheel shaft is fixedly arranged on the bearing platform, the first roller wheel is arranged on the first wheel shaft in a mode that the first roller wheel can rotate relative to the first wheel shaft and can not move along the axial direction of the first wheel shaft, the second wheel set is provided with a second wheel shaft and a second roller wheel, the second wheel shaft is fixedly arranged on the bearing platform, and the second roller wheel is arranged on the second wheel shaft in a mode that the second roller wheel can rotate relative to the second wheel shaft and can move along the axial direction of the second wheel shaft.

Therefore, when the carrying platform moves back and forth along the first and second guide rails by using the first and second rollers, the first and second guide rails may be in a non-parallel state due to the weight of the human body borne by the carrying platform, and at this time, the second wheel shaft and the second roller may adjust the relative positions thereof due to the stress deformation of the first and second guide rails, and the carrying platform may also be adjusted synchronously with the second wheel shaft, so as to maintain good transmission effect between the elements, thereby achieving the purpose of improving the smoothness of the operation.

Preferably, the first wheel axle has a first inner end portion, a first outer end portion and a first shoulder portion, the first inner end portion is fixedly arranged on the bearing platform, and the first shoulder portion is adjacent to and between the first inner end portion and the first outer end portion; the first wheel set further has a first outer annular washer and a first bearing, the first outer annular washer abuts against an end face of the first outer end portion of the first wheel 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 portion of the first wheel axle, and an axial length of the first inner ring is equal to a distance between the first shoulder portion of the first wheel axle and the first outer annular washer, so that the first roller is limited between the first shoulder portion of the first wheel axle and the first outer annular washer and cannot move relative to the first wheel axle along an axial direction of the first wheel axle.

Preferably, the second wheel axle has a second inner end, a second outer end and a second shoulder, the second inner end is fixedly arranged on the bearing platform, and the second shoulder is adjacent to the space between the second inner end and the second outer end; the second wheel set is also provided with a second outer annular gasket and a second bearing, the second outer annular gasket is abutted against the end face of the second outer end part of the second wheel shaft, the second bearing is provided with a second inner ring and a second outer ring fixedly connected with the second roller, the second inner ring is sleeved on the second outer end part of the second wheel shaft, and the axial length of the second inner ring is smaller than the distance between the second shoulder part of the second wheel shaft and the second outer annular gasket, so that the second roller is allowed to move relative to the second wheel shaft along the axial direction of the second wheel shaft between the second shoulder part of the second wheel shaft and the second outer annular gasket. In addition, the outer peripheral surface of the second outer end part of the second axle can be further provided with an oil storage groove for storing lubricating oil so as to increase the lubricating effect of the second axle and the lubricating oil.

The detailed construction, features, assembly or manner of use of the slide for exercise apparatus provided by the present invention will be described in the detailed description of the embodiments that follow. However, it should be understood by those skilled in the art that the detailed description and specific examples, while indicating the specific embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

Drawings

FIG. 1 is a perspective view of a slide of the present invention;

FIG. 2 is a bottom view of the slide assembly of the present invention engaging both the left and right guide rails;

FIG. 3 is a partial exploded perspective view of the sliding device of the present invention, mainly illustrating the details of the first wheel set;

FIG. 4 is a partial cross-sectional view of FIG. 2 taken along section line 4-4;

FIG. 5 is a cross-sectional view of a first wheel set provided by the slide of the present invention;

FIG. 6 is a partial exploded perspective view of the sliding device of the present invention, mainly illustrating the detail structure of the second wheel set;

FIG. 7 is a partial cross-sectional view of FIG. 2 taken along line 7-7;

FIG. 8 is a cross-sectional view of a second wheel set provided by the slide of the present invention;

FIG. 9 is a perspective view of the sliding device of the present invention applied to exercise equipment;

fig. 10 is a view showing a state in which the sliding apparatus of the present invention is used in an exercise machine.

In the above figures, the reference numerals have the following meanings:

10 bearing platform 21 pad

22 support 23 support plate

24 first side bar 25 second side bar

26 first upright frame strip 262 first shaft hole

27 second vertical frame strip 272 second shaft hole

28 crossbar 30 first wheel set

31 first sleeve 32 first axle

33 first inner end 34 first outer end

35 first shoulder 36 first inner threaded bore

37 first external screw hole 38 first bearing

39 first inner ring 40 first outer ring

41 first ball 42 first roller

43 first inner bolt 44 first inner resilient washer

45 first inner annular washer 46 first outer bolt

47 first outer elastomeric pad 48 first outer annular gasket

50 second wheel set 51 second shaft sleeve

52 second hub 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 second balls

62 second roller 63 second inner bolt

64 second inner resilient washer 65 second inner annular washer

66 second outer bolt 67 second outer elastic washer

68 second outer annular gasket 69 reservoir

D1, D2 distance L1, L2 axial length

70 fitness equipment 71 base

72 first rail 73 second rail

74 bouncing frame 75 pulling rope group

76 stay cord 77 arched door group

78 shoulder pad 79 headrest

80 tension spring 81 handle belt

Detailed Description

Applicants first describe herein, throughout this specification, including the examples and claims that follow, directional terminology will be used with reference to the orientation of the figures. Next, in the embodiments and the drawings to be described below, the same element numbers denote the same or similar elements or structural features thereof.

Referring to fig. 1 and 2, the sliding device 10 of the present invention includes a supporting platform 20, two first wheel sets 30, and two second wheel sets 50.

The supporting platform 20 has a rectangular pad body 21 and a supporting frame 22, wherein the supporting frame 22 has a rectangular supporting plate 23, the top surface of the supporting plate 23 is fixedly connected to the bottom surface of the pad body 21, the bottom surface of the supporting plate 23 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 direction of the supporting plate 23, the front and rear ends of the first side bar 24 are respectively provided with a first upright frame strip 26, the first upright frame strip 26 is provided with two left and right opposite first axle holes 262 (as shown in fig. 3), the front and rear ends of the second side bar 25 are respectively provided with a second upright frame strip 27, and the second upright frame strip 27 is provided with two left and right opposite second axle holes 272 (as shown in fig. 5). Further, the front, center and rear ends of the first and second side bars 24, 25 are connected together by a cross bar 28.

As shown in fig. 2, two first wheel sets 30 are located at the front and rear ends of the right side of the load platform 20. As further shown in fig. 3 and 4, each first wheel set 30 has a first axle sleeve 31, a first wheel axle 32, a first bearing 38, a first roller 42, a first inner bolt 43, and a first outer bolt 46, wherein:

the first shaft sleeve 31 is fixedly disposed in the first shaft hole 262 of the first upright frame strip 26 by welding.

The first axle 32 has a first inner end 33, a first outer end 34 and a first shoulder 35 adjacent between the first inner and outer ends 33, 34, the first inner end 33 of the first axle 32 is inserted into 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 portion 33 of the first hub 32 has a first inner threaded hole 36, and the first outer end portion 34 of the first hub 32 has a first outer threaded hole 37.

The first bearing 38 is disposed in the first roller 42 and has a first inner ring 39, a first outer ring 40 and a plurality of first balls 41 disposed between the first inner ring 39 and the first outer ring 40, the first 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, the first outer ring 40 is fixedly connected to the inner circumferential surface of the first roller 42, so that the first roller 42 rotates relative to the first axle 32 through the first outer ring 40.

The first inner bolt 43 is disposed in the first axle sleeve 31 and passes through a first inner resilient washer 44 and a first inner annular washer 45 and is threadedly disposed in the first inner threaded hole 36 of the first axle 32, such that the first inner annular washer 45 abuts against the end surface of the first inner end portion 33 of the first axle 32, thereby fixing the first axle 32 and the first axle sleeve 31 together.

The first outer bolt 46 passes through a first outer resilient washer 47 and a first outer annular washer 48 and is screwed into the first outer screw hole 37 of the first axle 32 such that the first outer annular washer 48 abuts against the end surface of the first outer end 34 of the first axle 32 and the outer end surface of the first inner ring 39 of the first bearing 38, thus fixing the first inner ring 39 of the first bearing 38 and the first outer end 34 of the first axle 32 together, and, as shown in fig. 5, the distance D1 between the first outer annular washer 48 and the first shoulder 35 of the first axle 32 is equal to the axial length L1 of the first inner ring 39 of the first bearing 38, so that the first roller 42 is restrained by the first inner ring 39 of the first bearing 38 from moving relative to the first axle 32 in the axial direction of the first axle 32.

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

the second sleeve 51 is fixedly disposed in the second shaft hole 272 of the second upright frame strip 27 by welding.

The second axle 52 has a second inner end 53, a second outer end 54 and a second shoulder 55 adjacent between the second inner and outer ends 53, 54, the second inner end 53 of the second axle 52 is inserted into the second sleeve 51, 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 53 of the second axle 52 has a second inner threaded hole 56, and the second outer end 54 of the second axle 52 has a second outer threaded hole 57.

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

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 inner annular washer 65 abuts against the end surface of the second outer end 54 of the second axle 52, thereby 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 hub 52, so that the second outer annular washer 68 abuts against the end surface of the second outer end 54 of the second hub 52, and, as shown in fig. 8, the distance D2 between the second outer annular washer 68 and the second shoulder 55 of the second hub 52 is greater than the axial length L2 of the second inner ring 59 of the second bearing 58, so that the second roller 62 can move relative to the second hub 52 along the axial direction of the second hub 52 together with the second bearing 58. In order to further increase the lubricating effect, the outer peripheral surface of the second outer end 54 of the second hub 52 has an annular oil storage groove 69, and the oil storage groove 69 is filled with lubricating oil, so that the smoothness of the operation between the two is increased by the lubricating oil.

Referring to fig. 9, the exercise apparatus 70 (a PILATES yoga bed is taken as an example, but not limited thereto) shown in the figure includes a base 71, the base 71 has a first rail 72 and a second rail 73, the first and

second rails

72, 73 are parallel to each other, a bouncing frame 74 is disposed at the rear end of the base 71, and a pulling rope set 75 and an arch door set 77 disposed above the pulling rope set 75 are disposed at the front end of the base 71. In the sliding device 10 of the present invention, the two first rollers 42 and the two second rollers 62 are respectively mounted on the first and

second guide rails

72, 73 of the base 71 (as shown in fig. 4 and 6), so that the supporting platform 20 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 supporting platform 20 is connected with the two pull ropes 76 by using one of the cross bars 28, then two shoulder pads 78 and a headrest pad 79 located between the two shoulder pads 78 are disposed on the top surface of the cushion body 21, in addition, a plurality of tension springs 80 are disposed on the bottom surface of the supporting plate 23, and a user can fix one end of one or more tension springs 80 to the rear end of the base 71 according to actual needs.

When operating the exercise apparatus 70, the user can select an appropriate action and posture according to his or her own ability or training purpose. For example, as shown in fig. 10, a user lies on the cushion body 21, leans against the headrest 79 and the two shoulder cushions 78 with their heads and shoulders, grasps the two holding straps 81 with their hands, and supports the bouncing frame 74 with their feet, and then applies a force to pull the two pulling ropes 76, so that the two pulling ropes 76 drive the supporting platform 20 to move away from the bouncing frame 74, and the pulling spring 80 is simultaneously stretched during the movement of the supporting platform 20, so that the stretched pulling spring 80 starts to accumulate an elastic restoring force, and once the pulling force is released, the elastic restoring force released by the pulling spring 80 drives the supporting platform 20 to reset, and the above operations are repeated to achieve a training effect. However, the above-mentioned operation is only one of the operation modes, and the user can change different motions and postures according to actual needs, and train in accordance with the elements such as the pull rope set 75, the arch set 77, and the bouncing frame 74, and the amount of resistance can be adjusted by adjusting the number of the tension springs 80 fixed to the base 71. Since how to operate is not the focus of the present application, it is not repeated herein for the sake of brevity.

In the process of moving the carrying platform 20 along the first and

second guide rails

72, 73, the weight of the human body borne by the carrying platform 20 is transmitted to the first and

second guide rails

72, 73 through the first and second wheel sets 30, 50, if the weight is too heavy, the first and

second guide rails

72, 73 may be in a non-parallel state, at this time, the second wheel axle 52 and the second roller 62 may adjust the relative position between each other in response to the stressed deformation of the first and

second guide rails

72, 73, and the carrying platform 20 may also be adjusted synchronously with the second wheel axle 52, so as to maintain a good transmission effect between the elements, thereby achieving the purpose of improving the smooth operation.

Claims

1. A sliding device for fitness equipment, the fitness equipment comprising a first guide rail and a second guide rail which are parallel to each other, the sliding device comprising:

the bearing platform is arranged between the first guide rail and the second guide rail;

the first wheel set is provided with a first wheel shaft fixedly arranged on the bearing platform and a first roller wheel which can be arranged on the first guide rail in a rolling way, and the first roller wheel is arranged on the first wheel shaft in a way that the first roller wheel can rotate relative to the first wheel shaft and can not move along the axial direction of the first wheel shaft; and

the second wheel set and the first wheel set are positioned at two opposite sides of the bearing platform, the second wheel set is provided with a second wheel shaft fixedly arranged on the bearing platform and a second roller wheel arranged on the second guide rail in a rolling way, and the second roller wheel is arranged on the second wheel shaft in a mode of rotating relative to the second wheel shaft and moving along the axial direction of the second wheel shaft.

2. The sliding device of claim 1 wherein the platform has a pad and a support frame, the support frame is disposed on the bottom of the pad and has a first side bar and a second side bar parallel to each other; the first wheel shaft is fixedly arranged on the first side rod, and the second wheel shaft is fixedly arranged on the second side rod.

3. The sliding device as claimed in claim 2, wherein the first wheel axle has a first inner end portion, a first outer end portion and a first shoulder portion, the first inner end portion is fixed to the first side bar of the supporting frame, and the first shoulder portion is adjacent to and between the first inner and outer end portions; the first wheel set further has a first outer annular washer and a first bearing, the first outer annular washer abuts against an end face of the first outer end portion of the first wheel axle, the first bearing has a first inner ring and a first outer ring fixedly connected to the first wheel axle, the first inner ring is sleeved on the first outer end portion of the first wheel axle and abuts against the first shoulder portion of the first wheel axle and the first outer annular washer respectively, the axial length of the first inner ring is equal to the distance between the first shoulder portion of the first wheel axle and the first outer annular washer, so that the first wheel axle and the first wheel axle cannot move relatively along the axial direction of the first wheel axle.

4. The sliding device as claimed in claim 3, wherein the first inner end of the first wheel axle has a first inner threaded hole, the first outer end of the first wheel axle has a first outer threaded hole, the first wheel assembly further has a first inner bolt and a first outer bolt, the first inner bolt and the first outer bolt are respectively threaded in the first inner threaded hole and the first outer threaded hole, and the first outer bolt fixes the first outer annular washer on the end surface of the first outer end of the first wheel axle.

5. The sliding device for fitness apparatus as recited in claim 4, wherein the first side rod of the supporting frame has a first axle hole, the first wheel set further has a first axle sleeve, the first axle sleeve is disposed in the first axle hole and sleeved on the first inner end of the first axle, and one end of the first axle sleeve abuts against the first shoulder; the first inner bolt fixes the first sleeve and the first inner end part of the first wheel axle together.

6. The sliding device as claimed in any one of claims 2 to 5 wherein the second wheel axle has a second inner end, a second outer end and a second shoulder, the second inner end being fixedly secured to the second side rail of the support frame, the second shoulder being adjacent between the second inner and outer ends; the second wheel set is also provided with a second outer annular gasket and a second bearing, the second outer annular gasket is abutted against the end face of the second outer end part of the second wheel shaft, the second bearing is provided with a second inner ring and a second outer ring fixedly connected to the second roller wheel, the second inner ring is sleeved on the second outer end part of the second wheel shaft, and the axial length of the second inner ring is smaller than the distance between the second shoulder part of the second wheel shaft and the second outer annular gasket, so that the second roller wheel and the second wheel shaft can move relatively along the axial direction of the second wheel shaft.

7. The sliding device for exercise equipment according to claim 6 wherein the second inner end of the second axle has a second inner threaded hole, the second outer end of the second axle has a second outer threaded hole, the second wheel assembly further has a second inner bolt and a second outer bolt, the second inner bolt and the second outer bolt are threaded into the second inner bolt and the second outer threaded hole, respectively, and the second outer bolt secures the second outer annular washer to the end surface of the second outer end of the second axle.

8. The sliding device for exercise equipment according to claim 7, wherein the second side rod of the supporting frame has a second shaft hole, the second wheel set further has a second shaft sleeve, the second shaft sleeve is disposed in the second shaft hole and sleeved on the second inner end portion of the second wheel shaft, and one end of the second shaft sleeve abuts against the second shoulder portion; the second inner bolt fixes the second shaft sleeve and the second inner end part of the second wheel shaft together.

9. The sliding device for an exercise apparatus according to claim 6, wherein the second outer end portion of the second wheel axle has an oil reservoir on an outer peripheral surface thereof, and the oil reservoir is filled with lubricating oil.