TWM674576U - Ski sports equipment with curved cranks - Google Patents

Abstract

This invention relates to a skiing device with a curved crank, which mainly includes a base mechanism, a sliding unit, a crank counterweight unit and an actuating rod assembly, so that the sliding unit pivotally mounted on the base mechanism can use the actuating rod assembly to actuate the crank counterweight unit with an impedance effect, thereby generating fitness movements that simulate skiing. The characteristic of this invention is that the actuating rod assembly is composed of a first curved connecting rod and a second curved connecting rod that are bent in opposite directions, wherein the first and second curved connecting rods have a straight rod section at one end connected to the crank counterweight unit, and the straight rod sections of the first and second curved connecting rods are respectively connected to a curved rod section, so that the straight rod sections of the first and second curved connecting rods are respectively connected to a curved rod section, so that the straight rod sections of the first and second curved connecting rods are respectively connected to a curved rod section. An oblique angle is formed between the rod segment and the bent rod segment, and the first and second bent link rods are respectively locked to the front end of the sliding unit at the ends of the bent rod segment. This ensures that the first and second bent link rods can generate oblique force components along the bent rod segment during rotational movement, thereby avoiding the feeling of frustration caused by blind spots during movement and further improving the smoothness of the sliding movement.

Description

Ski sports equipment with curved cranks

This invention belongs to the technical field of fitness equipment. Specifically, it refers to a ski with a curved crank. This avoids the frustration caused by blind spots during left and right swinging movements, thereby improving the smoothness of the simulated skiing swing and making the skiing movement smoother and safer.

Press, in recent years, with the improvement of living standards, people are paying more and more attention to sports and leisure for physical and mental health after busy work. However, due to work relationships, environment and weather, it is difficult for people to continue to exercise outdoors effectively. Many people use home sports equipment to replace outdoor sports. There are a wide variety of home sports equipment, each with different functions and sports effects. Take the common ski exercise machine as an example, which is a fitness equipment that simulates sledding and skiing and is used to train the user's waist, buttocks and leg muscles.

As shown in the first figure, this is a traditional US patent The ski simulator of 6,849,032 is provided with an upwardly extending fixed frame (11) near the front end of a base (10), and the two sides of the fixed frame (11) and the two sides of the base (10) are respectively connected to the middle section of a swing rod (13) by an inclined pivot (12), and the top surface of the rear end of the swing rod (13) on both sides is provided with a pedal (14) for the user to stand on, and a crank wheel (15) is provided in front of the fixed frame (11), and a crank (16) is provided on the bottom surface of the axis of the crank wheel (15), and the front ends of the swing rod (13) on both sides are respectively connected to the free end of the crank (16) by a steel connecting rod (17). The user's feet are allowed to step on the foot pedals (14) of the left and right swing rods (13) respectively. When the user's right foot applies force to the right, the swing rod (13) on the right side rotates outward, and the swing rod (13) on the left side is pushed inward by the steel connecting rod (17). When the left foot applies force to the left, the opposite action is generated. The continuous inward and outward rotation movement on both sides makes the user feel like skiing. At the same time, when the user moves the swing rods (13) on both sides, the crank (16) can be pushed through the steel connecting rod (17), thereby driving the crank wheel (15) to rotate. Furthermore, the crank wheel (15) can enhance the exercise training effect by driving a flywheel with an impedance effect.

However, the existing ski sports machines including the aforementioned patent case are all as mentioned above, which are operated by the user sliding the two side swing rods (13) left and right, and then using the steel connecting rod (17) to push the crank (16) to rotate, thereby driving the crank wheel (15) to rotate. Its operation mode is a horizontal arc swing mode, which is different from traditional sports equipment that uses vertical pedaling to drive the crank wheel in a circular rotation motion (such as an exercise bike). The biggest difference is that the ski machine cannot use vertical pedaling to drive the crank wheel. The inertia of the circular rotation of the pedal is used to overcome the dead points on both sides of the steel connecting rod (17) (as shown in the second and third figures); in actual exercise, when the steel connecting rod (17) and the crank (16) on both sides are in a straight line, there is only a horizontal force (P1, P2) without any force components in other directions, which leads to a deadlock phenomenon. Therefore, during the sliding movement, the user will obviously feel the instability such as setbacks and sudden rushes, which affects the smoothness and safety of the movement.

In other words, due to imperfections in the design of existing ski equipment, it's easy for them to get stuck during exercise, resulting in uneven and unsteady gliding. They can hardly be considered ideally designed, so solving this problem is a crucial issue for the industry.

Due to the aforementioned shortcomings and needs, the present creators, drawing upon their years of experience in related technologies and product design and manufacturing, have researched these shortcomings and needs and actively sought solutions. After continuous research and trial production, they have finally successfully developed a ski with a curved crank, overcoming the inconvenience and frustration caused by the unsmooth swinging of existing cranks.

Therefore, the main purpose of this invention is to provide a ski sports device with a curved crank, so that when the crank moves, each position can have a horizontal component of force and a vertical component of force, thus avoiding the frustration caused by dead angles.

Furthermore, a second primary objective of this invention is to provide a skiing device with curved cranks that can enhance the smoothness of the simulated skiing swing and make the movement smoother, thereby significantly improving the safety of the sport.

To this end, this invention mainly realizes the above-mentioned purpose and performance through the following technical means, which mainly includes a base mechanism, a sliding unit, a crank counterweight unit and an actuator assembly; wherein the base mechanism has a bottom frame that is roughly A-shaped, and a vertical frame extending upward is provided on the top of the middle section of the bottom frame, and an oblique pivot for pivoting the sliding unit is provided between the two sides of the vertical frame and the two sides of the bottom frame respectively, and the base mechanism has a mounting portion for mounting the crank counterweight unit on the front side of the vertical frame, and the sliding unit is connected by pedals on both sides. The pedal connecting rods on both sides are pivoted on the aforementioned oblique pivot shaft with an oblique shaft sleeve provided in the middle section. Furthermore, a connecting piece is provided between the middle sections of the pedal connecting rods on both sides. Furthermore, the crank counterweight unit is pivoted on the aforementioned mounting portion with a crank wheel. A crank shaft protrudes from the center of the crank wheel. Furthermore, a crank is connected to the bottom end of the crank shaft. The crank can be connected to the front ends of the pedal connecting rods on both sides respectively through the actuating rod assembly. The characteristic of the actuating rod assembly is that the actuating rod assembly is composed of a first curved connecting rod and a second curved connecting rod bent in opposite directions, wherein the first curved connecting rod is connected to the front end of the pedal connecting rod. One end of the first and second curved connecting rods connected to the crank has a straight rod section, and the straight rod sections of the first and second curved connecting rods are each connected to a curved rod section, so that there is an offset angle between the straight rod sections and the curved rod sections of the first and second curved connecting rods. The ends of the curved rod sections of the first and second curved connecting rods are respectively locked to the front ends of the pedal connecting rods on both sides. This overcomes the dead points of the crank's rotation and prevents it from being stuck in rotation, thereby forming a skiing device structure with smooth and smooth movement. The above-mentioned technical means are specifically implemented to achieve This innovative skiing device utilizes the design of the first and second curved connecting rods on both sides having the straight rod section and the opposing curved rod section. This design allows the first and second curved connecting rods to have the skewed angle, ensuring that when the crank swings in a horizontal arc, the first and second curved connecting rods can generate oblique force components along the curved rod section. This avoids the frustration caused by blind spots during movement, further enhancing the smoothness of simulated skiing movements and making the movement more stable. This significantly improves the safety of the sport, significantly enhances its practicality, and further increases its added value and economic benefits.

This invention further achieves the aforementioned objectives and effects by utilizing the following technical means: Preferably, the deflection angle is greater than 90 degrees and less than 180 degrees.

Preferably, a handrail is provided at the central top of the vertical frame of the base mechanism for the user to hold on to during exercise.

Preferably, the mounting portion comprises a fixed rod extending from the front side of the vertical frame, and the fixed rod has a vertical shaft sleeve for the crankshaft of the crank wheel to pivot on. Furthermore, the mounting portion comprises a rod extending from each end of the front side of the vertical frame, and the upper and lower ends of the crank wheel are respectively pivoted on the middle section of a frame plate, and the ends of the upper and lower frame plates are respectively locked to the aforementioned two side rods, so that the rotation of the crank wheel can be more stable.

Preferably, the rear end top surfaces of the pedal links on both sides are provided with foot pedals for the user to stand and step on.

To help you, the Review Committee, better understand the structure, features, and other purposes of this invention, the following provides a preferred embodiment, along with detailed illustrations, to enable those familiar with the art to implement it.

10: Base

11: Fixed frame

12: Oblique pivot

13: Swinging Rod

14: Pedals

15: Crank wheel

16: Crank

17: Steel connecting rod

50: Base mechanism

51: Bottom frame

52: Frame

53: Handrail Stand

54: Oblique pivot

55: Installation Department

56: Fixed rod

57: Bushing

58: Support rod

60: Sliding Unit

61: Pedal connecting rod

62: Bevel Bushing

63: Pedal

65: Connecting parts

70: Crank counterweight unit

71: Crank wheel

72: Crankshaft

73: Frame board

75: Crank

80: Actuator rod assembly

81: First bend linkage

811: Straight Section

812: Bend Section

82: Second bend linkage rod

821: Straight Section

822: Bend Section

Figure 1: Schematic diagram of the structure of a skiing device.

Figure 2: A schematic diagram of the ski's crank rotation in the left horizontal position, illustrating the movement when the two lateral swing bars swing to the right.

Figure 3: A diagram showing the movement of a ski with the crank rotated to the right horizontally, illustrating the movement when the two lateral swing bars swing to the left.

Figure 4: A three-dimensional diagram of the skiing device.

Figure 5: This is a 3D exploded diagram of the skiing device, illustrating its components and their relationships.

Figure 6: A top-down schematic diagram of this skiing device.

Figure 7: This is a diagram showing the ski's crank rotation in a horizontal position on the left side, illustrating the movement when the two lateral swing arms swing to the right.

Figure 8: This is a schematic diagram of the skiing device with the crank rotating in the right horizontal position, illustrating the movement when the two lateral swing arms swing to the left.

The accompanying figures illustrate specific embodiments of this invention and its components. All references to front and back, left and right, top and bottom, upper and lower, and horizontal and vertical are for descriptive purposes only and are not intended to limit this invention or its components to any particular position or spatial orientation. The dimensions specified in the drawings and description may be varied within the scope of the invention's patent application, depending on the design and requirements of the specific embodiments of this invention. Therefore, the patent application is not subject to such structural limitations.

This invention is a skiing device. Please refer to the fourth figure for details. It is mainly composed of a base mechanism (50), a sliding unit (60), a crank counterweight unit (70) and an actuating rod assembly (80). The sliding unit (60) pivotally mounted on the base mechanism (50) can utilize the actuating rod assembly (80) to actuate the crank counterweight unit (70) with an impedance effect, thereby generating a fitness movement that simulates skiing. The detailed structure of the preferred embodiment of this invention is as shown in the fourth, fifth and sixth figures. The base structure (50) has a bottom frame (51) that is roughly A-shaped, and a vertical frame (52) extending upward is provided on the top of the middle section of the bottom frame (51). A handrail vertical rod (53) is provided at the central top of the vertical frame (52) for the user to hold during exercise. Furthermore, an oblique pivot (54) is provided between the bottom surfaces of both sides of the vertical frame (52) and the top surfaces of both sides of the bottom frame (51). The oblique pivots (54) are used to pivot the sliding unit (60). In addition, the base structure (50) is provided with a vertical frame (52) on the front side. The mounting portion (55) is used to pivot the crank counterweight unit (70) in a manner approximately parallel to the ground. In a preferred embodiment of the mounting portion (55) of the present invention, a fixing rod (56) is provided on the front side of the vertical frame (52), and the fixing rod (56) has a vertical shaft sleeve (57) for pivoting the crank counterweight unit (70). The mounting portion (55) is provided with a support rod (58) at both ends of the front side of the vertical frame (52) for providing support for the crank counterweight unit (70); and the sliding unit (60 ) is composed of pedal connecting rods (61) on both sides. The pedal connecting rods (61) on both sides are respectively pivoted on the aforementioned oblique pivot shaft (54) with an oblique shaft sleeve (62) provided in the middle section. The top surfaces of the rear ends of the pedal connecting rods (61) on both sides are respectively provided with foot pedals (63) for users to stand and step on. Furthermore, a linking member (65) is provided between the middle sections of the pedal connecting rods (61) on both sides and adjacent to the oblique pivot shafts (54), so that the pedal connecting rods (61) on both sides can be synchronously deflected to the left and right. The crank counterweight unit ( 70) is a crank wheel (71) pivotally mounted on the fixed rod (56) of the aforementioned mounting portion (55), and a crank shaft (72) that can be pivotally mounted on the aforementioned shaft sleeve (57) is protruded downward from the axis of the crank wheel (71), and the upper and lower ends of the crank wheel (71) are pivotally mounted on the middle section of a frame plate (73), and the two ends of the upper and lower frame plates (73) are respectively locked on the aforementioned two side support rods (58), so that the rotation of the crank wheel (71) can be more stable to enhance the exercise effect. Furthermore, the bottom end of the crank shaft (72) of the crank wheel (71) is A crank (75) is connected, and the crank (75) can drive the crank wheel (71) to rotate synchronously through the crank shaft (72); and the actuating rod assembly (80) is arranged between the front end of the sliding unit (60) and the crank counterweight unit (70), and the actuating rod assembly (80) is composed of a first curved connecting rod (81) and a second curved connecting rod (82) bent in opposite directions, and the two ends of the first and second curved connecting rods (81, 82) are respectively connected to the front ends of the pedal connecting rods (61) on both sides and the common pivot. At the free end of the crank (75), the first and second curved connecting rods (81, 82) are connected to one end of the crank (75) and have a straight rod section (811, 821), and the straight rod sections (811, 821) of the first and second curved connecting rods (81, 82) are respectively connected to a curved rod section (812, 822), so that there is a deflection angle between the straight rod sections (811, 821) of the first and second curved connecting rods (81, 82) and the curved rod sections (812, 822), and the deflection angle is greater than 9 0 degrees and less than 180 degrees to ensure that the first and second curved connecting rods (81, 82) can generate oblique force components at any position during rotation. The first and second curved connecting rods (81, 82) are respectively locked to the front ends of the pedal connecting rods (61) on the two opposite sides of the sliding unit (60) with the ends of the curved rod sections (812, 822), thereby overcoming the dead points of the crank (75) rotation and preventing it from rotating to death, thereby forming a ski sports device structure with smooth and stable movement.

As for the actual application of this invention, please refer to the sixth, seventh and eighth figures. When operating, the user stands on the foot pedals (63) of the pedal connecting rods (61) on both sides of the sliding unit (60) with both feet, and holds the handrail stand (53) with both hands. Then, the user twists the waist, hips and legs to drive the pedal connecting rods (61) on both sides to swing left and right. The connecting member (65) is provided so that the pedal connecting rods (61) on both sides can be swung synchronously to conform to the actual motion state. At the same time, the pedal connecting rods (61) on both sides of the sliding unit (60) can alternately drive the crank (75) of the crank counterweight unit (70) to rotate through the first and second curved connecting rods (81, 82) relative to each other, thereby driving the crank wheel (71) to rotate and generate motion load, so that the user can achieve the goal of driving the legs, The hip and whole body curves are moved in large quantities, thereby achieving the effect of whole body exercise; and as shown in Figures 7 and 8, since the front ends of the pedal connecting rods (61) on both sides of the sliding unit (60) are pivotally provided with the first and second curved connecting rods (81, 82) of the actuating rod group (80), and the first and second curved connecting rods (81, 82) are simultaneously connected to the crank (75) of the crank wheel (71), when the sliding unit (60) is moved on both sides, the pedal connecting rods (61) are pivotally connected to the first and second curved connecting rods (81, 82) of the actuating rod group (80), and the first and second curved connecting rods (81, 82) are simultaneously connected to the crank (75) of the crank wheel (71), The pedal connecting rod (61) drives the crank (75) alternately through the first and second curved connecting rods (81, 82). When the first and second curved connecting rods (81, 82) rotate to a horizontal position where they are relatively connected in a straight line, a vertical component force and a horizontal component force are generated along the curved rod section (812, 822), thereby preventing a "deadlock state" from occurring and thus avoiding the feeling of a stuck point in the sliding rotation (as shown in Figures 7 and 8).

As can be seen from the above-mentioned structure and usage description, the present invention has a curved crank skiing device. The first and second curved connecting rods (81, 82) connected to the pedal connecting rods (61) on both sides of the sliding unit (60) and the crank (75) of the crank counterweight unit (70) have the design of the straight rod section (811, 821) and the opposite curved rod section (812, 822), so that the first and second curved connecting rods are connected to the pedal connecting rods (61) on both sides of the sliding unit (60) and the crank (75) of the crank counterweight unit (70). The rods (81, 82) have the deflection angle, and the deflection angle is greater than 90 degrees and less than 180 degrees, so as to ensure that the first and second curved connecting rods (81, 82) can generate oblique force components along the curved rod sections (812, 822) during rotational movement, thereby avoiding the frustration caused by dead angles during movement, further improving the smoothness of the sliding movement, making the movement smoother, and greatly improving the safety of the movement.

In summary, it can be understood that this invention is a highly creative and innovative invention that not only effectively solves the problems faced by users but also significantly enhances efficacy. Furthermore, no identical or similar products have been created or publicly used in the same technical field, and this invention also exhibits enhanced efficacy. Therefore, this invention meets the requirements of "novelty" and "progress" for a new patent, and therefore a new patent application has been filed in accordance with the law.

50: Base mechanism

51: Bottom frame

52: Frame

56: Fixed rod

60: Sliding Unit

61: Pedal connecting rod

63: Pedal

65: Connecting parts

70: Crank counterweight unit

71: Crank wheel

72: Crankshaft

75: Crank

80: Actuator rod assembly

81: First bend linkage

811: Straight Section

812: Bend Section

82: Second bend linkage rod

821: Straight Section

822: Bend Section

Claims (5)

A skiing device with a curved crank, which mainly includes a base mechanism, a slide unit, a crank counterweight unit and an actuator rod assembly; wherein the base mechanism has a bottom frame, and a vertical frame is provided on the top of the bottom frame, and an oblique pivot shaft for pivoting the slide unit is provided between the two sides of the vertical frame and the two sides of the bottom frame, and the base mechanism has a mounting portion for mounting the crank counterweight unit on the front side of the vertical frame, and the slide unit is composed of pedal connecting rods on both sides, and the pedal connecting rods on both sides are pivoted on the oblique pivot shaft by an oblique shaft sleeve, and a connecting member is provided between the pedal connecting rods on both sides, and the crank counterweight unit is pivoted on the mounting portion. A crank wheel, a crank shaft protruding from the crank wheel axis, and a crank connected to the bottom end of the crank shaft, the crank can be connected to the pedal connecting rods on both sides through the actuating rod assembly; its characteristic is that: the actuating rod assembly is composed of a first curved connecting rod and a second curved connecting rod bent in opposite directions, wherein the first and second curved connecting rods are connected to the pedal connecting rods on both sides respectively. One end of the connecting rod connected to the crank has a straight rod section, and the straight rod sections of the first and second curved connecting rods are respectively connected to a curved rod section, so that there is a deflection angle between the straight rod sections and the curved rod sections of the first and second curved connecting rods, and the first and second curved connecting rods are respectively pivoted on the pedal connecting rods on both sides with the ends of the curved rod sections. A ski with a curved crank as described in claim 1, wherein the deflection angle is greater than 90 degrees and less than 180 degrees. A ski with a curved crank as described in claim 1 or 2, wherein the upright frame of the base mechanism is provided with a handrail upright. A ski sports device with a curved crank as described in claim 1 or 2, wherein the mounting portion is provided with a fixed rod extending from the front side of the vertical frame, and the fixed rod has a shaft sleeve for the crank shaft of the crank wheel to pivot, and the mounting portion is provided with a rod extending from both ends of the front side of the vertical frame, and a frame plate is pivoted on the upper and lower ends of the crank wheel, and the two ends of the upper and lower frame plates are respectively locked to the two side support rods. A ski with a curved crank as described in claim 1 or 2, wherein the pedal links on both sides are respectively provided with a pedal.