Skiing exerciser with bent crank

Abstract

The utility model relates to a skiing exerciser with a bent crank, which comprises a base mechanism, a sliding step unit, a crank counterweight unit and an actuating rod group, so that the sliding step unit pivoted on the base mechanism can utilize the actuating rod group to actuate the crank counterweight unit with an impedance effect so as to generate a body-building action simulating skiing. The actuating rod set is composed of the first bent linkage rod and the second bent linkage rod which are bent in different directions, the ends, connected with the crank balance weight unit, of the first bent linkage rod and the second bent linkage rod are provided with the straight rod sections, the straight rod sections of the first bent linkage rod and the second bent linkage rod are connected with the bent rod sections respectively, and the inclined included angle is formed between the straight rod sections and the bent rod sections of the first bent linkage rod and the second bent linkage rod. And the first bent linkage rod and the second bent linkage rod are respectively locked at the front end of the sliding step unit through the end parts of the bent rod sections so as to ensure that the first bent linkage rod and the second bent linkage rod can generate inclined component forces along the bent rod sections when rotating, so that the pause feeling caused by dead angles in the movement can be avoided, and the smoothness of the sliding action can be further improved.

Description

Technical Field

[0001] This disclosure relates to the field of fitness equipment technology, and more specifically to a ski exercise machine with a curved crank, which can avoid the feeling of jerking due to dead angles during left and right swaying and gliding movements, thereby improving the smoothness of simulated skiing swaying movements and making the ski exercise machine's movements more stable and safer. Background Technology

[0002] In recent years, with the improvement of living standards, people are paying more and more attention to exercise and leisure for physical and mental health in addition to their busy work. However, due to work, environment and weather, it is difficult for people to exercise outdoors effectively and consistently. Many people use home exercise equipment to replace outdoor exercise. There is a wide variety of home exercise equipment, each with different functions and exercise effects. For example, the common ski exercise equipment is a fitness machine that simulates skiing and is used to train the user's waist, hip and leg muscles.

[0003] like Figure 1 The image shows a ski simulator as described in US Patent 6,849,032. It has an upwardly extending fixed frame 11 near the front end of a base 10. The fixed frame 11 is connected to the middle section of a swing arm 13 by an oblique pivot 12 on both sides of the fixed frame 11 and the base 10. The top surface of the rear end of the swing arm 13 on both sides is provided with a foot pedal 14 for the user to stand on. 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 crank wheel 15's axle. The front ends of the swing arm 13 on both sides are connected to the free end of the crank 16 by a rigid connecting rod 17. The user must place both feet on the foot pedals 14 of the left and right swing rods 13 respectively. When the user applies force to the right with their right foot, the right swing rod 13 rotates outward, and the left swing rod 13 is pushed inward by the rigid connecting rod 17. When the user applies force to the left with their left foot, the opposite action is produced. In this way, a continuous inward and outward rotation movement is generated on both sides, making the user feel like they are skiing. At the same time, when the user moves the swing rods 13 on both sides, the crank 16 is pushed through the rigid connecting rod 17, which in turn drives the crank wheel 15 to rotate. Furthermore, the crank wheel 15 can drive a flywheel with resistance to enhance the exercise training effect.

[0004] However, existing ski equipment incorporating the aforementioned patented solutions, as described above, relies on the user sliding the two swing bars 13 left and right, which in turn uses the rigid connecting rod 17 to drive the crank 16 to rotate, thereby rotating the crank wheel 15. Its operation is a horizontal arc swing mode, unlike traditional exercise equipment that uses vertical pedaling circular motion to drive the crank wheel (such as exercise bikes). The biggest difference is that ski equipment cannot utilize the inertia of vertical pedaling circular motion to overcome the dead points on both sides of the rigid connecting rod 17's movement (such as...).Figure 2 、 3 In actual movement, it only has a horizontal force (P1, P2) and no other directional component when the rigid connecting rod 17 on both sides and the crank 16 are in a straight line state, which leads to the dead state phenomenon, so that the user can obviously feel the jerk, violent impact and other unstable phenomena during the sliding movement, which affects the smoothness and safety of the movement.

[0005] In other words, due to the imperfect design of the existing ski exercise machine, it is easy to produce the "dead state" phenomenon during the movement, and there is a lack of smooth and unstable sliding. Practical new type content

[0006] Therefore, the main purpose of the present disclosure is to provide a ski exercise machine with a curved crank, which can have horizontal and vertical components at each position during movement, thereby avoiding the jerk feeling caused by the dead angle.

[0007] Another main purpose of the present disclosure is to provide a ski exercise machine with a curved crank, which can improve the smoothness of the simulated skiing swing movement and make the movement more stable, thereby greatly improving the safety of the movement.

[0008] To this end, the present disclosure mainly realizes the above-mentioned purposes and technical effects through the following technical means, which mainly includes a base mechanism, a sliding step unit, a crank counterweight unit and an actuating rod set;

[0009] The base mechanism has a bottom frame in the shape of an A letter, and an upright frame is arranged on the top surface of the middle section of the bottom frame and extends upward. In addition, a diagonal pivot shaft is arranged between each side of the upright frame and the bottom frame for pivoting the sliding step unit. The base mechanism has an installation part on the front side of the upright frame for arranging the crank counterweight unit. The sliding step unit is composed of two pedal connecting rods, which are pivoted on the diagonal pivot shaft through a diagonal shaft sleeve arranged in the middle section. In addition, a connecting member is arranged between the middle sections of the two pedal connecting rods. The crank counterweight unit is pivoted on a crank wheel on the installation part. The shaft center of the crank wheel protrudes a crank shaft, and the bottom end of the crank shaft is connected to a crank. The crank can be connected to the front ends of the two pedal connecting rods through the actuating rod set.

[0010] The actuating rod set is composed of a first curved connecting rod and a second curved connecting rod which are curved in different directions. One end of the first and second curved connecting rods connected to the crank has a straight rod section, and the straight rod section of the first and second curved connecting rods is connected to a curved rod section, respectively, so that the straight rod section and the curved rod section of the first and second curved connecting rods have an oblique included angle. The end of the curved rod section of the first and second curved connecting rods is locked to the front end of the pedal connecting rod on the corresponding side.

[0011] The present application can overcome the dead point of the crank rotation, prevent the rotation from stopping, and further form a smooth skiing exercise device structure.

[0012] Through the specific implementation of the foregoing technical means, the skiing exercise device of the present application can utilize the design of the first and second curved connecting rods with the straight rod segments and the opposite curved rod segments, and the first and second curved connecting rods with the skewing angles, to ensure that the first and second curved connecting rods can generate the oblique component force along the curved rod segments when the crank is swinging in the horizontal arc, avoid the jerk feeling caused by the dead angle in the exercise, further improve the smoothness of the simulated skiing action, make the exercise more stable, greatly improve the safety of the exercise, greatly improve the practicality, and further improve the added value and economic benefits.

[0013] The present application further achieves the foregoing purposes and technical effects by utilizing the following technical means, which include:

[0014] Preferably, the skewing angle is greater than 90 degrees and less than 180 degrees.

[0015] Preferably, the central top end of the vertical frame of the base mechanism is provided with a handrail vertical rod for the user to hold during the exercise.

[0016] Preferably, the mounting portion is provided with a fixed rod extending from the front side of the vertical frame, and the fixed rod has a vertical shaft sleeve for the crank shaft of the crank wheel to be pivoted, and the mounting portion is provided with a support rod extending from each end of the front side of the vertical frame, and the upper and lower crank wheels are respectively pivoted in the middle segment of a frame plate, and the two ends of the upper and lower frame plates are respectively locked on the two side support rods, so that the rotation of the crank wheel is more stable.

[0017] Preferably, the top surface of the rear end of the two pedal connecting rods is provided with a foot pedal for the user to stand on and step on. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the existing skiing exercise device structure.

[0019] Figure 2 It is a schematic diagram of the existing skiing exercise device when the crank rotation is located at the left horizontal position, for illustrating the movement state when the two side swinging rods swing to the right.

[0020] Figure 3 It is a schematic diagram of the existing skiing exercise device when the crank rotation is located at the right horizontal position, for illustrating the movement state when the two side swinging rods swing to the left.

[0021] Figure 4 It is a schematic diagram of the three-dimensional appearance of the skiing exercise device of the present application.

[0022] Figure 5Fig. 1 is a perspective view of a ski exercise machine according to the present disclosure, showing the relative positions of the components thereof.

[0023] Figure 6 Fig. 2 is a plan view of the ski exercise machine according to the present disclosure.

[0024] Figure 7 Fig. 3 is a schematic view of the ski exercise machine according to the present disclosure, showing the motion of the swing rods when the crank is rotated to the left horizontal position.

[0025] Figure 8 Fig. 4 is a schematic view of the ski exercise machine according to the present disclosure, showing the motion of the swing rods when the crank is rotated to the right horizontal position. BRIEF DESCRIPTION OF DRAWINGS

[0027] 10: base; 11: fixed frame; 12: diagonal pivot; 13: swing rod; 14: foot pedal; 15: crank wheel; 16: crank; 17: rigid link; 50: base mechanism; 51: base frame; 52: vertical frame; 53: handrail vertical rod; 54: diagonal pivot; 55: mounting portion; 56: fixed rod; 57: shaft sleeve; 58: support rod; 60: ski unit; 61: pedal link; 62: diagonal shaft sleeve; 63: foot pedal; 65: linkage; 70: crank counterweight unit; 71: crank wheel; 72: crank shaft; 73: frame plate; 75: crank; 80: actuating rod set; 81: first curved linkage; 811: straight rod segment; 812: curved rod segment; 82: second curved linkage; 821: straight rod segment; 822: curved rod segment. DETAILED DESCRIPTION

[0028] In the specific embodiments of the present disclosure and the components thereof as illustrated in the accompanying drawings, all references to front and back, left and right, top and bottom, upper and lower, and horizontal and vertical are for the convenience of description only and are not intended to limit the present invention or to restrict the components thereof to any position or spatial orientation. The dimensions specified in the drawings and the description can be varied according to the design and requirements of the specific embodiments of the present disclosure without departing from the scope of the present disclosure, and therefore the patent application is not limited by such structures.

[0029] The present disclosure relates to a ski exercise machine, as shown in Figure 4 which mainly comprises a base mechanism 50, a ski unit 60, a crank counterweight unit 70, and an actuating rod set 80, such that the ski unit 60 pivotally mounted on the base mechanism 50 can be actuated by the crank counterweight unit 70 with the actuating rod set 80 to generate a bodybuilding motion simulating skiing;

[0030] The detailed structure of the preferred embodiments of the present disclosure can be referred to Figure 4 ,5 and 6, wherein the base mechanism 50 has a substantially A-shaped base frame 51, and a vertical frame 52 is arranged on the top surface of the middle section of the base frame 51, and a handrail vertical rod 53 is arranged on the top end of the vertical frame 52, for the user to hold when moving, and a slant pivot 54 is arranged between the bottom surface of the vertical frame 52 and the top surface of the base frame 51, for pivoting the slide unit 60, and the base mechanism 50 is provided with a mounting portion 55 on the front side of the vertical frame 52, for pivoting the crank counterweight unit 70 in a substantially parallel manner to the ground, and the mounting portion 55 is preferably provided with a fixed rod 56 extending from the front side of the vertical frame 52, and the fixed rod 56 has a vertical shaft sleeve 57 for pivoting the crank counterweight unit 70, and the mounting portion 55 is provided with a support rod 58 extending from the front side of the vertical frame 52, for providing support for the crank counterweight unit 70;

[0031] The slide unit 60 is composed of two pedal connecting rods 61, which are pivoted to the slant pivots 54 by means of a slant shaft sleeve 62 arranged on the middle section, and the top surface of the rear end of the pedal connecting rods 61 is provided with a foot pedal 63 for the user to stand on, and a connecting member 65 is arranged between the pedal connecting rods 61 adjacent to the slant pivots 54, so that the pedal connecting rods 61 can be synchronously left and right inclined;

[0032] The crank counterweight unit 70 is pivoted to a crank wheel 71 on the fixed rod 56 of the mounting portion 55, and the shaft center of the crank wheel 71 is provided with a crank shaft 72, which is pivoted to the shaft sleeve 57, and the upper and lower frame plates 73 are pivoted to the crank wheel 71, and the ends of the upper and lower frame plates 73 are locked to the support rods 58, so that the rotation of the crank wheel 71 is more stable, and the exercise effect is improved, and the bottom end of the crank shaft 72 is connected to a crank 75, which can drive the crank wheel 71 to rotate synchronously through the crank shaft 72;

[0033] The actuating rod set 80 is arranged between the front end of the sliding step unit 60 and the crank counterweight unit 70. The actuating rod set 80 is composed of a first curved connecting rod 81 and a second curved connecting rod 82 which are curved in different directions. The two ends of the first and second curved connecting rods 81, 82 are respectively connected to the front ends of the left and right pedal connecting rods 61 and are pivotally arranged at the free end of the crank 75. Furthermore, the first and second curved connecting rods 81, 82 are connected to one end of the crank 75 which has a straight rod segment 811, 821. The straight rod segments 811, 821 of the first and second curved connecting rods 81, 82 are respectively connected to a curved rod segment 812, 822. The straight rod segments 811, 821 and the curved rod segments 812, 822 of the first and second curved connecting rods 81, 82 have an oblique included angle which is greater than 90 degrees and less than 180 degrees. This ensures that the first and second curved connecting rods 81, 82 can generate oblique components of force at any position during rotation. The first and second curved connecting rods 81, 82 are locked at the ends of the curved rod segments 812, 822 to the front ends of the left and right pedal connecting rods 61 of the sliding step unit 60. This overcomes the dead points of the rotation of the crank 75 and prevents the rotation from stopping. Thus, a smooth skiing exercise machine structure is formed.

[0034] The practical application of the present disclosure can refer to Figure 6 、 7 and 8. When operating, the user stands on the foot pedals 63 of the left and right pedal connecting rods 61 of the sliding step unit 60 with both feet and holds the handrail upright rod 53 with both hands. Then, the user drives the left and right swinging of the pedal connecting rods 61 by twisting the waist, hips and rotating the legs. Since the connecting member 65 is arranged between the left and right pedal connecting rods 61, the left and right pedal connecting rods 61 can swing synchronously to meet the actual operating state. Meanwhile, the left and right pedal connecting rods 61 of the sliding step unit 60 can drive the rotation of the crank 75 of the crank counterweight unit 70 through the staggered operation of the first and second curved connecting rods 81, 82 to drive the rotation of the crank wheel 71 to generate a movement load. This allows the user to drive a large number of movements of the legs, hips and whole body to achieve the effect of whole body movement.

[0035] As Figure 7 、 8As shown, since the pedal connecting rods 61 on both sides of the sliding unit 60 are pivotally connected at the front end of the actuator rod assembly 80, the first and second curved connecting rods 81 and 82 are connected to the crank 75 of the crank wheel 71. Thus, when the pedal connecting rods 61 on both sides of the sliding unit 60 are slid to drive the crank 75 through the first and second curved connecting rods 81 and 82, the first and second curved connecting rods 81 and 82 rotate to a horizontal position where they are relatively connected. A vertical component force and a horizontal component force are generated along the curved rod segments 812 and 822, so as not to cause a "locked-in state", thereby avoiding the feeling of abruptness in sliding and rotating.

[0036] As can be seen from the foregoing description of its structure and use, the skiing device with curved crank disclosed herein utilizes the design of the first and second curved linkages 81 and 82, which are connected to the two side pedal linkages 61 of the stepping unit 60 and the crank 75 of the crank counterweight unit 70. These linkages have straight rod sections 811 and 821 and opposite curved rod sections 812 and 822. This design allows the first and second curved linkages 81 and 82 to have a deflection angle greater than 90 degrees and less than 180 degrees. This ensures that the first and second curved linkages 81 and 82 can generate a diagonal force along the curved rod sections 812 and 822e during rotational movement, thereby avoiding the jerking sensation caused by dead angles during movement. This further improves the smoothness of skiing and makes the movement more stable, significantly enhancing the safety of the exercise.

Claims

1. A ski exercise machine with a curved crank, mainly comprising a base mechanism, a sliding step unit, a crank counterweight unit and an actuating rod set; wherein the base mechanism has a base frame, a vertical frame is arranged on the top surface of the base frame, a slant pivot shaft is arranged on both sides of the base frame and the vertical frame, respectively, for pivoting the sliding step unit, the base mechanism has a mounting portion on the front side of the vertical frame for mounting the crank counterweight unit, the sliding step unit is composed of two pedal connecting rods, the two pedal connecting rods are pivoted on the slant pivot shaft through a slant shaft sleeve, a connecting member is arranged between the two pedal connecting rods, the crank counterweight unit has a crank wheel pivoted on the mounting portion, the crank wheel has a crank shaft protruding from the shaft center, the bottom end of the crank shaft is connected with a crank, the crank is connected with the two pedal connecting rods through the actuating rod set; characterized in that: the actuating rod set is composed of a first curved connecting rod and a second curved connecting rod which are curved in different directions, one end of the first and second curved connecting rods connected with the crank has a straight rod segment, the straight rod segments of the first and second curved connecting rods are respectively connected with a curved rod segment, so that the straight rod segment and the curved rod segment of the first and second curved connecting rods have an oblique included angle, and the first and second curved connecting rods are respectively pivoted on the two pedal connecting rods through the end of the curved rod segment.

2. The ski exercise machine with a bent crank as claimed in claim 1, wherein, The oblique included angle is greater than 90 degrees and less than 180 degrees.

3. Ski exercise apparatus with bent crank as claimed in claim 1 or 2, wherein The vertical frame of the base mechanism is provided with a handrail vertical rod.

4. The ski exercise machine with a bent crank as claimed in claim 1 or 2, wherein, The mounting portion has a fixing rod arranged on the front side of the vertical frame, the fixing rod has a shaft sleeve for pivoting the crank shaft of the crank wheel, the mounting portion has a support rod arranged on both ends of the front side of the vertical frame, and the crank wheel has an upper frame plate and a lower frame plate pivoted on the upper and lower sides, respectively, and the two ends of the upper and lower frame plates are respectively locked on the two support rods.

5. The ski exercise machine with a bent crank as claimed in claim 1 or 2, wherein, The two pedal connecting rods are respectively provided with a foot pedal.

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