Slide device and exercise equipment using the same

Abstract

To provide a slide device capable of finely adjusting the clamping strength of a rail member by rollers, and an exercise implement equipped with the same. [Solution] A sliding device used in the movable mechanism of exercise equipment, comprising a long rail member and two or more guide rollers that clamp the sides of the rail member from two directions, the guide rollers being able to slide freely along the rail member, at least one of the guide rollers being a first guide roller whose clamping strength against the rail member is adjustable, the first guide roller having an eccentric mechanism that allows the position of the first guide roller relative to the rail member to be adjusted.

Description

[Technical Field]

[0001] The present invention relates to a sliding device and an exercise tool using the same. [Background technology]

[0002] Conventionally, a sliding device that slides longitudinally on a rail member has been provided on the movable part of an exercise tool. For example, a sliding device configured to sandwich the side surfaces of a rail member from both sides with rollers is known (for example, Patent Documents 1 and 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7158545 [Patent Document 2] Utility Model Registration No. 3168541 Summary of the Invention [Problem to be solved by the invention]

[0004] The sliding device provided in the exercise equipment is required to have stable and smooth sliding motion. If the sliding motion of the sliding device is unstable, the exercise equipment may not be comfortable to use and the training effect may be reduced. Furthermore, if the sliding motion of the sliding device is unstable, malfunctions may occur in parts such as roller bearings, which may increase the maintenance burden.

[0005] However, in some sports equipment, the grip strength of the rollers on the rail member may not be as strong as desired due to dimensional errors in the components or the installation environment. In such cases, the sliding action of the slide device may become unstable. For this reason, it is considered desirable for the sports equipment to have a mechanism that allows fine adjustment of the grip strength of the rollers on the rail member after installation.

[0006] However, conventional sliding devices are not provided with such an adjustment mechanism, and there is a problem in that it is not easy to achieve stable and smooth sliding operation.

[0007] The present invention was made in consideration of the above circumstances, and its objective is to provide a sliding device that allows fine adjustment of the clamping strength of the rail member by the rollers, and an exercise tool equipped with the same. [Means for solving the problem]

[0008] The sliding device of the present invention has been made to solve the above technical problems, and has the following features.

[0009] First, the sliding device of the present invention is a sliding device used in a moving mechanism of an exercise tool, A long rail member; two or more guide rollers that sandwich the side surfaces of the rail member from two directions; Equipped with the guide roller is slidable along the rail member, At least one of the guide rollers is a first guide roller whose clamping strength for clamping the rail member is adjustable, the first guide roller is provided with an eccentric mechanism, The eccentric mechanism is capable of adjusting the position of the first guide roller relative to the rail member. Secondly, in the slide device of the first invention, the first guide roller includes a pin member provided at the center of the rotation shaft as the eccentric mechanism, the pin member has an eccentric rotation portion whose rotation center is offset from the central axis of the pin, It is preferable that the position of the first guide roller relative to the rail member be adjustable by rotation of the eccentric rotation portion. Thirdly, in the slide device of the second invention, the pin member is provided with a bolt, the eccentric rotation portion includes a cylindrical bearing fitting portion, The bearing fitting portion has a first insertion hole that penetrates the cylinder in the axial direction and is provided at a position eccentric to the center of the cylinder, It is preferable that the bolt is inserted through the first insertion hole. Fourth, in the slide device of the second or third invention, the eccentric rotation portion includes an adjustment portion formed integrally with the bearing fitting portion, The adjustment portion has a second insertion hole formed therein that communicates with the first insertion hole, It is preferable that the bolt is inserted through the first insertion hole and the second insertion hole. Fifth, in the slide device of the second invention, a base plate is provided along the rail member, One end of the pin member is preferably fixed to the base plate. Sixth, in the slide device according to the first to fifth aspects of the present invention, it is preferable that a second guide roller that rotates on a concentric shaft is provided on the opposite side of the rail member from the first guide roller. Seventh, in the slide device of the sixth invention, two second guide rollers are provided, The first guide roller is preferably provided on the opposite side corresponding to a central position between the second guide rollers. Eighth, in the slide device of the sixth invention, two second guide rollers are provided, The first guide roller is preferably provided between the second guide rollers and on the opposite side corresponding to a position close to one side of the second guide roller. Ninth, the exercise equipment of the present invention is characterized by including the sliding device of any one of the first to eighth aspects of the present invention. [Effects of the Invention]

[0010] The sliding device of the present invention allows for fine adjustment of the grip strength of the rail member by the rollers. The exercise equipment of the present invention provides stable and smooth sliding of the sliding device, making it comfortable to use and enabling the desired training effect to be achieved. Furthermore, the exercise equipment of the present invention also requires less maintenance. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a schematic front view showing a sliding device according to a first embodiment of the present invention. [Figure 2] 2 is a schematic view of the sliding device shown in FIG. 1 as viewed from direction A. FIG. [Figure 3] 2 is a BB cross-sectional view of a first guide roller in the slide device shown in FIG. 1. FIG. [Figure 4] 2 is a cross-sectional view of a second guide roller taken along line CC in the sliding device shown in FIG. 1. FIG. [Figure 5] 10 is an explanatory diagram showing an adjusted state of an eccentric mechanism used in a first guide roller of a sliding device of the present invention. FIG. [Figure 6] FIG. 10 is a schematic front view showing a sliding device according to a second embodiment of the present invention. [Figure 7] 1 is a schematic view showing an exercise tool using a sliding device of a first embodiment. [Figure 8] FIG. 10 is a schematic view showing an exercise tool using a sliding device according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0012] The sliding device of the present invention is a sliding device used in a moving mechanism of an exercise tool, and can be exemplified by the following first and second embodiments.

[0013] <One aspect of the first embodiment> A first embodiment of a sliding device of the present invention will be described in detail below with reference to the drawings. Fig. 1 is a schematic front view showing the sliding device of the first embodiment according to the present invention. Fig. 2 is a schematic view seen from the direction of arrow A in Fig. 1. Fig. 3 is a BB cross-sectional view of the first guide roller in Fig. 1. Fig. 4 is a CC cross-sectional view of the second guide roller in Fig. 1.

[0014] The slide device 1 includes a rail member 2, a base plate 3, and a guide roller.

[0015] The rail member 2 is long and cylindrical with a circular cross section. In this embodiment, the rail member 2 is installed horizontally.

[0016] The base plate 3 is flat and disposed along the rail member 2.

[0017] The guide rollers include a first guide roller 5 and a second guide roller 6. One first guide roller 5 is provided on the lower side of the base plate 3, with the rail member 2 sandwiched between them, and two second guide rollers 6 are provided on the opposite, upper side. The first guide roller 5 is provided at a position corresponding to the center between the two second guide rollers 6.

[0018] The strength with which the first guide roller 5 pinches the rail member 2 can be adjusted. The first guide roller 5 is equipped with an eccentric mechanism, which can adjust the position of the first guide roller 5 relative to the rail member 2. Here, the "eccentric mechanism" refers to a mechanism that includes a portion in which the center of rotation 550 is offset from the central axis 510 of the first guide roller 5.

[0019] More specifically, the first guide roller 5 includes a bearing 41 (for example, a bearing) attached to a pin member 52, and a roller portion 4 provided on the outer periphery of the bearing 41. The first guide roller 5 also includes the pin member 52 provided at the center of the rotation axis as an eccentric mechanism.

[0020] A groove 42 with a V-shaped cross section is formed on the outer peripheral surface of the roller unit 4, and abuts against the surface of the cylindrical rail member 2. The roller unit 4 rotates via bearings 41, causing the sliding device 1 to slide on the rail member 2.

[0021] The pin member 52 includes a bolt 51 and an eccentric rotating portion 53 whose center of rotation 550 is offset from the central axis 510 of the pin.

[0022] The eccentric rotation portion 53 includes a bearing fitting portion 54 and an adjustment portion 55. The bearing fitting portion 54 is cylindrical, and has a first insertion hole 541 with a circular cross section that penetrates the cylinder in the axial direction. The first insertion hole 541 is provided so that its center is located at a position eccentric to the center of the cylinder.

[0023] The adjustment portion 55 is formed integrally with the bearing fitting portion 54, and has a second insertion hole 551 with a circular cross section that is coaxially connected to the first insertion hole 541 of the bearing fitting portion 54. In this embodiment, the outer shape of the adjustment portion 55 is formed in the shape of a hexagonal pillar. The second insertion hole 551 of the adjustment portion 55 is also formed at a position eccentric to the center of the hexagonal cross section.

[0024] A bolt 51 is inserted into the eccentric rotation portion 53 through the first insertion hole 541 and the second insertion hole 551. The eccentric rotation portion 53 (the bearing fitting portion 54 and the adjustment portion 55) can rotate freely with the bolt 51 inserted therein.

[0025] Eccentric rotation part 53 is clamped and fixed between base plate 3 and bolt head 511 by fastening bolt 51 and nut 512. The position of first guide roller 5 can be adjusted, for example, by slightly loosening bolt 51 and rotating eccentric rotation part 53. Once the adjusted position has been determined, bolt 51 can be tightened to fix eccentric rotation part 53.

[0026] Furthermore, a portion of the adjustment portion 55 located on the base plate 3 side is exposed in the space 56 between the base plate 3 and the roller portion 4. Therefore, by inserting a tool into the space 56 between the base plate 3 and the roller portion 4 and gripping the adjustment portion 55, the adjustment portion 55 and the bearing fitting portion 54 can be rotated by a desired amount.

[0027] In the sliding device 1 of this embodiment, a first insertion hole 541 is provided at a position eccentric from the center of the cylinder of the bearing fitting portion 54 into which the bearing 41 is fitted. A bolt 51 is inserted into this first insertion hole 541 and fixed to the base plate 3. Therefore, in the sliding device 1, by rotating an adjustment portion 55 formed integrally with the bearing fitting portion 54, the position of the roller portion 4 (the clamping strength of the rail member 2) can be finely adjusted via the eccentrically rotating bearing fitting portion 54.

[0028] FIG. 5 is a schematic diagram showing one mode of adjustment of the first guide roller 5 by an eccentric mechanism.

[0029] When the adjustment part 55 of the first guide roller 5 in Fig. 5(a) is rotated 90° in the direction of arrow A (to the right), it becomes the state shown in Fig. 5(b). When the adjustment part 55 is further rotated 90° in the direction of arrow B (to the right) from the state shown in Fig. 5(b), it becomes the state shown in Fig. 5(c).

[0030] In the state shown in FIG. 5(a), the first insertion hole 541 of the bearing fitting portion 54 is located above the center 550 of the cylinder in the figure. Therefore, the roller unit 4 is located entirely below. In contrast, in the state shown in FIG. 5(c) where the bearing fitting portion 54 is rotated 180 degrees from the state shown in FIG. 5(a), the first insertion hole 541 of the bearing fitting portion 54 is located below the center 550 of the cylinder in the figure. Therefore, the roller unit 4 is located entirely above the state shown in FIGS. 5(a) and 5(b). In other words, the position of the first guide roller 5 can be adjusted within the range from FIG. 1(a) to FIG. 1(c).

[0031] FIG. 4 is a cross-sectional view of the second guide roller 6 of the sliding device 1 shown in FIG. 1 taken along line CC.

[0032] The second guide roller 6 is a guide roller that rotates on a concentric shaft. Specifically, the second guide roller 6 may have the same configuration as the first guide roller 5, except for the eccentric mechanism. Therefore, some of the configuration common to the first guide roller 5 will not be described. The second guide roller 6 may include a bolt 61, a fixing member 63 that is threaded onto the bolt 61, and a bearing fitting portion 64 that is formed integrally therewith. The second guide roller 6 can be fixed to the base plate 3 by sandwiching the fixing member 63 between a nut 62 that is threaded onto the bolt 61. With the bearing 41 fitted into the bearing fitting portion 64, the roller unit 4 rotates via the bearing 41.

[0033] In the slide device 1 of this embodiment, a second guide roller 6 that rotates on a concentric shaft is provided on the opposite side of the rail member 2 from the first guide roller 5. Since the position of the roller portion 4 of the second guide roller 6 is fixed, the position of the first guide roller 5 can be stably adjusted by the eccentric mechanism.

[0034] The sliding device 1 of this embodiment is provided with two second guide rollers 6, and the first guide roller 5 is provided on the opposite side corresponding to the center position between the second guide rollers 6. By providing the first guide roller 5 at a position corresponding to the center position between the second guide rollers 6, the position adjustment of the first guide roller 5 by the eccentric mechanism can be performed stably.

[0035] <One aspect of the second embodiment> 6 is a schematic front view showing a sliding device 1 according to a second embodiment of the present invention. In the following, a description of the contents common to the first embodiment will be omitted.

[0036] In the sliding device 1 of this embodiment, the first guide roller 5 and the second guide roller 6 are arranged such that the first guide roller 5 is arranged between the two second guide rollers 6 and on the opposite side corresponding to a position close to one side of the second guide rollers 6.

[0037] In the second embodiment, two upper and lower second guide rollers 6 and one first guide roller 5 are provided on the opposite side to sandwich a long rail member 2 arranged in the vertical direction. The first guide roller 5 is located between the two upper and lower second guide rollers 6 and close to the upper second guide roller 6.

[0038] The sliding device 1 of the second embodiment is a mechanism that moves the base plate 3 downward in the direction of arrow (B) in response to a load upward in the direction of arrow (A). With this sliding device 1, in response to a load that moves the base plate 3 downward in the direction of arrow (B), a force indicated by arrow (C) is applied to the lower second guide roller 6 of the rail member 2, and a force indicated by arrow (D) is applied to the opposing first guide roller 5.

[0039] Here, in the sliding device 1 of the second embodiment, the distance between the lower second guide roller 6 and the first guide roller 5 is longer than the distance between the upper second guide roller 6 and the first guide roller 5, so that, by the principle of leverage, the load of the lower second guide roller 6 (arrow (C)) can be supported with a weak force using the first guide roller 5 as the fulcrum. This reduces the burden on the bearings 41 of the lower second guide roller 6, reducing the noise of movement during training and extending the life of the bearings 41 of the roller unit 4.

[0040] The sliding device 1 of the present invention has been described above based on an embodiment, but the present invention is not limited to the above embodiment, and various modifications are possible within the scope of the gist of the present invention.

[0041] For example, the shapes of the rail member 2 and the roller portion 4 are not particularly limited and can be designed as appropriate.

[0042] Furthermore, in the above embodiment, a sliding device configured with two second guide rollers 6 and one first guide roller 5 has been described as an example, but the present invention is not limited to this, and a configuration using one or three or more second guide rollers 6, or two or more first guide rollers 5, is also possible. Furthermore, all of the guide rollers may be first guide rollers 5.

[0043] <Embodiment of Exercise Equipment> The sliding device of the present invention can be used in the moving mechanisms of various sports equipment.

[0044] 7 and 8 are external views illustrating an embodiment of the exercise equipment of the present invention.

[0045] For example, in the exercise tool 7 illustrated in FIG. 7, the sliding device 1 of the first embodiment is applied to a lower-body training device. This exercise tool 7 allows a user to sit on a seat 71, place the soles of their feet on pedals 72 connected to the sliding device 1 of the first embodiment of the present invention, and perform exercises by bending and straightening their legs. The eccentric mechanism of the first guide roller 5 of the sliding device 1 allows for fine adjustment of the clamping strength of the rail member 2 between the first guide roller 5 and the second guide roller 6 (the position of the first guide roller 5), thereby ensuring stable and smooth sliding of the sliding device 1. Therefore, the exercise tool 7 is comfortable to use and can achieve the desired training effect. Furthermore, the exercise tool of the present invention reduces component defects and the burden of maintenance, such as component replacement, can be reduced.

[0046] In addition, in the exercise tool 8 illustrated in FIG. 8, the sliding device 1 of the second embodiment is applied to an upper body training tool. With this exercise tool 8, a user sits on a seat 81, grips a handle 82 connected to the sliding device 1, and bends and straightens their elbows to perform exercises. The eccentric mechanism of the first guide roller 5 of the sliding device 1 allows for fine adjustment of the clamping strength of the rail member 2 between the first guide roller 5 and the second guide roller 6 (the position of the first guide roller 5), thereby ensuring stable and smooth sliding of the sliding device 1. Therefore, the exercise tool 8 is comfortable to use and can achieve the desired training effect. Furthermore, the exercise tool of the present invention reduces component defects and the like, thereby reducing the burden of maintenance, such as component replacement.

[0047] The exercise equipment of the present invention has been described above based on an embodiment, but the present invention is not limited to the above embodiment. For example, the sliding device of the present invention can also be applied to a movable part used to move the weight mechanism of the exercise equipment up and down. [Explanation of symbols]

[0048] 1 Slide device 2 Rail components 3 Base Plate 4 Roller section 41 Bearings 42 Groove 5. First guide roller 51 volts 510 Center axis 511 Bolt head 512 Nut 52 Pin member 53 Eccentric rotating part 54 Bearing fitting part 541 First insertion hole 55 Adjustment part 550 rotation center 551 Second insertion hole 56 Space 6 Second guide roller 61 volts 62 Nut 63 Fixing member 64 Bearing fitting part 7 Exercise equipment (lower body training equipment) 71 Seating area 72 Pedal section 8. Exercise equipment (upper body training equipment) 81 Seating area 82 Grip part

Claims

1. A sliding device used in a moving mechanism of an exercise tool, A long rail member; two or more guide rollers that sandwich the side surfaces of the rail member from two directions; Equipped with the guide roller is slidable along the rail member, At least one of the guide rollers is a first guide roller whose clamping strength for clamping the rail member is adjustable, the first guide roller is provided with an eccentric mechanism, the eccentric mechanism includes a pin member provided at the center of a rotation axis of the first guide roller, the pin member has an eccentric rotation portion, the eccentric rotation portion has a rotation center offset with respect to the central axis of the pin member, The position of the first guide roller relative to the rail member can be adjusted by rotating the eccentric rotation unit, and thus the strength with which the rail member is clamped can be adjusted. Slide device.

2. the pin member comprises a bolt; the eccentric rotation portion includes a cylindrical bearing fitting portion, The bearing fitting portion has a first insertion hole that penetrates the cylinder in the axial direction and is provided at a position that is eccentric with respect to the center of the cylinder, The bolt is inserted into the first insertion hole. The slide device according to claim 1.

3. the eccentric rotation portion includes an adjustment portion formed integrally with the bearing fitting portion, The adjustment portion has a second insertion hole formed therein that communicates with the first insertion hole, The bolt is inserted through the first insertion hole and the second insertion hole. The slide device according to claim 2.

4. a base plate disposed along the rail member; One end side of the pin member is fixed to the base plate. The slide device according to claim 1.

5. A second guide roller that rotates on a concentric shaft is provided on the opposite side of the first guide roller across the rail member. The slide device according to claim 1.

6. Two second guide rollers are provided, The first guide roller is provided on the opposite side of the rail member corresponding to a central position between the second guide rollers. The slide device according to claim 5.

7. Two second guide rollers are provided, The first guide roller is provided between the second guide rollers and on the opposite side of the rail member corresponding to a position close to one side of the second guide roller. The slide device according to claim 5.

8. The slide device of claim 1, exercise equipment.

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