WEIGHT TRAINING SLED WITH ENHANCED COMPONENT FORCE EFFECT

Abstract

A weight training sled with enhanced component force effect is disclosed, the sled including: a main frame with first and second ends remote from each other; a push frame, erected at the first end of the main frame; an operating handle, erected at the second end; a resistance wheel, in a rotatable state, disposed at the first end and equipped with a damping structure for providing a damping effect to retard the rolling of the resistance wheel; two wheels, in a rotatable state, disposed at either side of the second end, allowing the main frame to be displaced by utilizing the rolling of each of the wheels and the resistance wheel; and wherein, the height of the first end of the main frame is lower than the height of the second end, relatively causing the second end to have an upward inclination angle which is between 3 and 30.

Claims

1. A weight training sled with enhanced component force effect, comprising: a main frame comprising a first end and a second end remote from each other; a push frame, erected at the first end of the main frame; an operating handle erected at the second end of the main frame; a resistance wheel in a rotatable state, disposed at the first end and equipped with a damping structure for providing a damping effect to retard the rolling of the resistance wheel; two wheels in a rotatable state, disposed at either side of the second end, allowing the main frame to be displaced by utilizing the rolling of each of the wheels and the resistance wheel; and wherein, the height of the first end of the main frame is lower than the height of the second end, relatively causing the second end to have an upward inclination angle which is between 3 and 30.

2. The weight training sled with enhanced component force effect according to claim 1, wherein the main frame is further provided with a weight load holder that allows the user to load a weight member selectively.

3. The weight training sled with enhanced component force effect according to claim 1, wherein the second end of the main frame is further provided with a pulling connection portion that allows for the assembly of a pulling member.

4. The weight training sled with enhanced component force effect according to claim 1, wherein the operating handle comprises two Y-shaped handlebars in a spaced apart configuration.

5. The weight training sled with enhanced component force effect according to claim 1, wherein the two wheels are of an omni-directional wheel type capable of free rotation.

Description

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

[0009] FIG. 1 is a perspective view of a preferred embodiment of the present invention of a weight training sled.

[0010] FIG. 2 is a side view of a preferred embodiment of the present invention of a weight training sled.

[0011] FIG. 3 is a schematic view I of a preferred embodiment of the present invention of a weight training sled showing the effect of using component forces.

[0012] FIG. 4 is a schematic view II of a preferred embodiment of the present invention of a weight training sled showing the effect of using component forces.

[0013] FIG. 5 is a schematic view of a variation of the weight training sled of the invention.

[0014] FIG. 6 is a status view of the component forces when the user pushes the main frame to advance via the push frame on the first end.

DETAILED DESCRIPTION OF THE INVENTION

[0015] FIG. 1 to FIG. 5 depict a preferred embodiment of the weight training sled with enhanced component force effect. However, such a preferred embodiment is for illustrative purposes only, and is not intended to limit the scope of the invention.

[0016] The weight training sled with enhanced component force effect has a main frame 10, comprising a first end 11 and a second end 12 remote from each other. A push frame 20 is erected at the first end 11 of the main frame 10. An operating handle 30 is erected at the second end 12 of the main frame 10. A resistance wheel 40, in a rotatable state, is disposed at the first end 11 and is equipped with a damping structure 41 for providing a damping effect to retard the rolling of the resistance wheel 40. Two wheels 50, in a rotatable state, are disposed at either side of the second end 12, allowing the main frame 10 to be displaced by utilizing the rolling of each of the wheels 50 and the resistance wheel 40. The height of the first end 11 of the main frame 10 is lower than the height of the second end 12, relatively causing the second end 12 to have an upward inclination angle which is between 3 and 30.

[0017] Referring to FIG. 1 and FIG. 2, in this embodiment, the main frame 10 is further provided with a weight load holder 60 that allows the user to load a weight member 61 selectively (can be, but not limited to weight plates).

[0018] Referring to FIG. 5, in this embodiment, the second end 12 of the main frame 10 is further provided with a pulling connection portion 70 that allows for the assembly of a pulling member 71 (can be, but not limited to a noose).

[0019] Referring to FIG. 1 and FIG. 2, in this embodiment, the operating handle 30 comprises two Y-shaped handlebars 31 in a spaced apart configuration.

[0020] Based on the above structural design and technical features, in actual application of the weight training sled with enhanced component force effect disclosed in the present invention, because the second end 12 of the main frame 10 has an upward inclination angle , different pushing directions of the user can generate different pushing resistance effects. Firstly, as shown in FIG. 3, when the main frame 10 advances toward its relative upward inclined end (i.e., second end 12), it will generate a relatively large upward component force (Y1), thus the resistance value (F1) during the pushing is relatively reduced; on the contrary, as shown in FIG. 4, when the main frame 10 advances toward its relative downward inclined end (i.e., first end 11), due to the relatively larger downward component force (Y2), the resistance value (F2) during the pushing is relatively larger. As a result, users can obtain a more diverse and rich muscle training experience and effect by pushing the main frame 10 from different ends, thereby further enhancing the functionality and product value of the weight training sled.

[0021] The inclination of the main frame 10 in this invention has another advantage. When, in the traction mode, the user pulls the main frame 10, as shown in FIG. 5, the user can optionally pull the upward inclined end (i.e., second end 12) to move the main frame 10. As the pulling position is usually above the waist of the user, with a large height difference from the main frame 10, the inclined design of the main frame 10 perfectly makes up for this height difference, providing a more smooth traction path, meanwhile avoiding perking of the pulled end (i.e., second end 12) of the main frame 10. In this way, the traction is more stable and smooth.

[0022] FIG. 6 shows the status of the component forces when the user pushes the main frame 10 to advance via the push frame 20 of the first end 11. Here, (F3) represents the downward and forward force by the user via the push frame 20, and (F1) indicates the resistance value generated on the upward inclined end of the main frame 10. This illustration indicates that, in application of the invention, by pushing the main frame 10 from different ends, the user can obtain diversified muscle training feelings and effects.

[0023] Specifically, the two wheels 50 are in the form of omni-directional wheel that turn freely. In this embodiment, based on the configuration of the wheels 50 in the form of omni-directional wheel, together with the inclined design of the main frame 10, when the user turn and control the main frame 10 (see FIG. 3 and FIG. 4), less effort is needed. Moreover, when no force is applied, the inclined main frame 10 also has a guiding and positioning function upon the omni-directional wheels 50.