Treadmill with adjustable gradient

Abstract

A treadmill with an adjustable gradient comprises a base, a treadmill table, a gear assembly, a shaft center, a driving assembly and a bearing assembly. And the treadmill is positioned above the base. The gear assembly is located below the treadmill and comprises a driving gear and a driven gear. The axis is fixed to the treadmill and the driven gear. The driving assembly comprises a motor for driving the driving gear to rotate. The bearing assembly is located on the base and supports the axis.

Description

Technical Field

[0001] The utility model relates to a treadmill with variable slope. Background Art

[0002] Due to busy life, modern people generally lack exercise. However, running has become the sport of choice for many people because it is simple and efficient. When the weather is bad or during certain periods of time, it is more convenient to use an indoor treadmill than to run outdoors.

[0003] In order to simulate climbing, some treadmills have a lifting mechanism that can lift the front end of the running platform. In addition, in addition to simulating climbing, some treadmills also have a lifting mechanism that can lift the rear end of the treadmill to simulate downhill running training.

[0004] Taiwan Patent TWI549719B previously applied by the applicant discloses a treadmill, which includes a running platform, a front lifting frame, a rear lifting frame, and a driving assembly. The front lifting frame is pivotally connected to the front half of the running platform, and the rear lifting frame is pivotally connected to the rear half of the running platform. The driving assembly is movably connected to the front lifting frame and the rear lifting frame, and moves between the front lifting frame and the rear lifting frame, so that the front lifting frame or the rear lifting frame is lifted. Among them, the driving assembly may include a motor, a screw, and a sleeve.

[0005] In previous designs, the same motor is used to drive the front lifting frame and the rear lifting frame, which requires the motor to generate a large torque, otherwise it is difficult to drive the front lifting frame and the rear lifting frame. Utility Model Content

[0006] The utility model relates to a treadmill with adjustable slope.

[0007] In some embodiments, a treadmill includes a base, a treadmill, a gear assembly, an axle, a drive assembly, and a bearing assembly. The treadmill is located above the base. The gear assembly is located below the treadmill and includes a driving gear and a driven gear. The axle is fixed to the treadmill and the driven gear. The drive assembly includes a motor to drive the driving gear to rotate. The bearing assembly is located on the base and supports the axle.

[0008] In some embodiments, the treadmill further includes a reduction gearbox, the rotating shaft of the motor is connected to the reduction gearbox, and the output shaft of the reduction gearbox is connected to the driving gear.

[0009] In some embodiments, the speed of the motor divided by the speed of the driven gear is equal to or greater than 1000.

[0010] In some embodiments, a bracket is provided on each side of the bottom of the treadmill, and the first end and the second end of the axis pass through a corresponding bracket respectively and are fixed to the bracket.

[0011] In some embodiments, the bearing assembly includes two seat bearings to support the first end and the second end of the shaft respectively.

[0012] In some embodiments, the base includes two support columns, and the two seat bearings are respectively fixed on one support column.

[0013] In some embodiments, the number of teeth on the driving gear is greater than the number of teeth on the driven gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Non-limiting and non-exhaustive embodiments of the disclosed technology, including preferred embodiments, will be described below with reference to the drawings, wherein like reference numerals refer to like elements or parts throughout the several views unless otherwise specified.

[0015] Figure 1 It is a three-dimensional diagram of a treadmill 1 according to an embodiment of the utility model.

[0016] Figure 2 for Figure 1 Exploded view of the treadmill shown.

[0017] Figure 3 for Figure 1 The treadmill shown is a three-dimensional view with some components omitted.

[0018] Figure 4A and Figure 4B for Figure 1 Schematic diagram of the production process of the treadmill shown.

[0019] Figure 5 Show Pass Figure 4B A partial view of the assembled treadmill 1 (some components omitted).

[0020] Figure 6 show Figure 1 The treadmill is shown in a perspective view being operated in a first state.

[0021] Figure 7 show Figure 1 A perspective view of the treadmill shown is shown being operated in a second state.

[0022]

Main component symbol description

[0023] 1: Treadmill 10: Base

[0024] 11: Treadmill 12: Axis

[0025] 13: Gear assembly 14: Drive assembly

[0026] 15: Bearing assembly 101: Support column

[0027] 110: Bracket 131: Driving gear

[0028] 132: Driven gear 140: Motor

[0029] 141: Reducer 151: Seat bearing

[0030] 1410: Output shaft 1411: Input shaft DETAILED DESCRIPTION

[0031] The embodiments will be described more fully below with reference to the accompanying drawings, which form a part of this article and show specific exemplary embodiments by way of illustration. These embodiments are disclosed in sufficient detail to enable those skilled in the art to practice the utility model. However, these embodiments can be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. Therefore, the following detailed description is not intended to be limiting.

[0032] Figure 1 It is a three-dimensional diagram of a treadmill 1 according to an embodiment of the utility model. Figure 2 for Figure 1 An exploded view of the treadmill 1 is shown. Figure 3 for Figure 1 The treadmill 1 is a three-dimensional view with some components omitted. Figures 1 to 3 The main components of the treadmill 1 include a base 10, a treadmill 11, an axis 12, a gear assembly 13, a drive assembly 14, and a bearing assembly 15. The base 10 is in contact with the ground. The treadmill 11 is located on the base 10 and usually has a moving running belt (not shown) for the user to run or walk on it. The axis 12 is fixed to the treadmill 11. The drive assembly 14 is connected to the gear assembly 13 to drive the gear assembly 13 to rotate. The gear assembly 13 has at least a driving gear 131 and a driven gear 132 that mesh with each other, wherein the driven gear 132 is fixed to the axis 12. The bearing assembly 15 is fixed to the base 10 and includes two seat bearings 151 to support the axis 12.

[0033] Figure 4A and Figure 4B for Figure 1 The manufacturing process diagram of the treadmill 1 is shown in FIG. Figure 4A FIG. 1 is a view of the treadmill 10 with the bottom facing upward. Figure 4A First, the treadmill 10 is turned over so that its bottom faces upward, and then the driven gear 132 is fixed to the shaft 12 in an appropriate manner, such as welding. Next, the shaft 12 is fixed to the bottom of the treadmill 11 in an appropriate manner, such as welding. In this embodiment, the bottom of the treadmill 11 has a bracket 110 on both sides, and the two ends of the shaft 12 pass through a bracket 110 respectively and are fixed to the bracket 110 by welding.

[0034] See also Figure 4BThen, the treadmill 11 is reversed so that the axis 12 is located below the treadmill 11, and the two ends of the axis 12 are respectively set in a seat bearing 151 of the bearing assembly 15. Then, the two seat bearings 151 of the bearing assembly 15 are fixed on the base 10. In this embodiment, the base 10 has two support columns 101, and the two seat bearings 151 are respectively locked on one support column 101 by an appropriate method or fixing element, such as a screw.

[0035] Figure 5 Show Pass Figure 4B A partial view of the assembled treadmill 1 (some components omitted). Figures 2 to 5 In this embodiment, the drive assembly 14 has a motor 140 and a reduction box 141. The input shaft 1411 of the reduction box 141 is connected to the motor 140, and the output shaft 1410 of the reduction box 141 is connected to the driving gear 131. In one embodiment, the reduction box 141 has a plurality of gears of different sizes, which are combined into a gearbox. The gear connected to the input shaft 1411 can be a gear with the least number of teeth, and the gear connected to the output shaft 1410 can be a gear with the most number of teeth. In another preferred embodiment, for example, a model E worm gear reduction box produced by Liming Machinery Co., Ltd. can be used. The reduction box 141 has a worm and a worm gear meshed with the worm, wherein the worm is meshed with the input shaft 1411 (also a worm in this embodiment), and the worm gear is fixed to the output shaft 1410. In another preferred embodiment, for example, a model LHM worm gear reduction box produced by Liming Machinery Co., Ltd. can be used. The reduction box 141 has a first worm, a second worm, a first worm wheel, and a second worm wheel. The input shaft 1411 (a worm in this embodiment) meshes with the first worm, the first worm meshes with the first worm wheel, the first worm wheel meshes with the second worm, the second worm meshes with the second worm wheel, and the second worm wheel is fixed to the output shaft 1410. In this way, the reduction box 141 reduces the input speed of the motor 140 but increases the output torque. In other embodiments, the reduction box 141 can be composed of a pulley or a sprocket.

[0036] See also Figure 5 Through the above configuration, the motor 140 drives the reduction box 141, so that the reduction box 141 drives the driving gear 131 to rotate in a clockwise or counterclockwise direction, and the driving gear 131 drives the driven gear 132 to rotate in a counterclockwise or clockwise direction. Since the driven gear 132 is fixed to the treadmill 11 through the shaft 12, the rotation of the driven gear 131 causes the shaft 12 and the treadmill 11 to rotate, causing the front end or rear end of the treadmill 11 to be lifted or lowered, thereby adjusting the slope of the treadmill 11.

[0037] Figure 6 show Figure 1 The treadmill 1 is shown in a three-dimensional view in a first state. When the motor 140 drives the reduction box 141, the reduction box 141 drives the driving gear 131 to rotate in a first direction (e.g., clockwise), and the driving gear 131 drives the driven gear 132 to rotate in a second direction (e.g., counterclockwise), so that the axis 12 and the treadmill 11 also rotate, resulting in the rear end of the treadmill 11 being lifted (the front end falling).

[0038] Figure 7 show Figure 1 The treadmill 1 is shown in a three-dimensional view in the second state. When the motor 140 drives the reduction box 141, the reduction box 141 drives the driving gear 131 to rotate in the second direction (e.g., counterclockwise), and the driving gear 131 drives the driven gear 132 to rotate in the first direction (e.g., clockwise), so that the axis 12 and the treadmill 11 also rotate, causing the front end of the treadmill 11 to be lifted (the rear end to go down).

[0039] See also Figures 5 to 7 In a preferred embodiment, the "speed ratio" between the motor 140 and the driven gear 132 is defined as the rotation speed (rpm) of the motor 140 ÷ the rotation speed (rpm) of the driven gear 132, which is equal to 1000 or greater than 1000. In addition, in some embodiments, the number of teeth of the driving gear 131 can be greater than the number of teeth of the driven gear 132. Through the above configuration, the number of revolutions of the motor 140 is reduced, and a larger torque is obtained, so that the treadmill 11 can adjust a wide range of slopes. In addition, the working capacity of the motor 140 is improved. At the same motor speed, the treadmill 11 can withstand a larger load, and even a heavier user can remain stable when running on it. In addition, since a smaller power motor can be used to achieve the required output power, equipment and energy costs can be reduced.

[0040] It can be understood from the above that for the purpose of illustration, the specific embodiments of the present invention have been described herein, but various modifications can be made without departing from the scope of the present invention. Therefore, the present invention is not limited except for the scope of the attached patent.

Claims

1. A treadmill with adjustable slope, characterized in that: include: Base; a treadmill, located above the base; A gear assembly, located below the treadmill and comprising a driving gear and a driven gear; An axis fixed to the treadmill and the driven gear; A driving assembly, comprising a motor to drive the driving gear to rotate; and The bearing assembly is located on the base and supports the axis.

2. The treadmill according to claim 1, characterized in that: It further comprises a reduction box, the motor is connected to the input shaft of the reduction box, and the output shaft of the reduction box is connected to the driving gear.

3. The treadmill according to claim 2, characterized in that: The reduction box comprises a plurality of gears, wherein the gear with the least number of teeth among the plurality of gears is connected to the input shaft, and the gear with the most number of teeth among the plurality of gears is connected to the output shaft.

4. The treadmill according to claim 2, characterized in that: The reduction box comprises a worm wheel and a worm, the input shaft meshes with the worm, the worm meshes with the worm wheel, and the worm wheel is connected to the output shaft.

5. The treadmill according to claim 2, characterized in that: The reduction gearbox includes a first worm gear, a second worm gear, a first worm, and a second worm, the input shaft meshes with the first worm, the first worm meshes with the first worm gear, the first worm gear meshes with the second worm, the second worm meshes with the second worm gear, and the second worm gear is connected to the output shaft.

6. The treadmill according to claim 1, characterized in that: The rotation speed of the motor divided by the rotation speed of the driven gear is equal to or greater than 1000.

7. The treadmill according to claim 1, characterized in that: The two sides of the bottom of the treadmill are respectively provided with brackets, and the first end and the second end of the axis respectively pass through a corresponding bracket and are fixed to the bracket.

8. The treadmill according to claim 7, characterized in that: The bearing assembly includes two seat bearings to respectively support the first end and the second end of the axis.

9. The treadmill according to claim 8, characterized in that: The base comprises two supporting columns, and the two seat bearings are respectively fixed on one of the supporting columns.

10. The treadmill according to claim 1, characterized in that: The number of teeth of the driving gear is greater than the number of teeth of the driven gear.

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