CN1618487A - Double elliptic motion exercising equipment - Google Patents

Abstract

The double elliptical machine of the present invention comprises a base and a fixed armrest (1) connected thereto and two sets of crank-rocker mechanisms; the two sets of crank-rocker mechanisms are connected by couplings transmitted between intersecting shafts, and they are connected with the damping adjustment device (10) Together with the base, the motion of the double ellipse is formed, so that the projection of the trajectory of each pedal (6) on the horizontal plane and the vertical plane is an elliptic curve; the left axis (12) and the right axis (9) of the coupling The outer ends of the two holes (16) pass through the holes (16) of the curved supports (8) on both sides of the base respectively, and are fixedly connected with the upper ends of the cranks (7) on the left and right sides, and the angle between the axes of the two holes (16) and the horizontal line Same, make the axes of the left and right shafts form an obtuse angle; the damping adjustment device is fixed on the base through a stand, and the device is provided with two damping blocks (25), which are in sliding contact with the outer surface of the coupling. The invention can be used for sports similar to skiing, step climbing, jogging and exercise bike, so that the sportsman can obtain the effects of human body balance and coordination ability and body fitness.

Description

Dual Elliptical

technical field

The invention relates to sports fitness equipment, in particular to a double elliptical machine which can exercise similarly to skiing, climbing steps, jogging and exercise bikes.

Background technique

Among the many sports equipment, there is an elliptical machine suitable for people to run. Its structure includes a base and an armrest connected to it, two sets of crank-rocker mechanisms, and feet connected to the crank-connecting rods of the two sets of crank-rocker mechanisms. pedal. Since the two sets of crank-rocker mechanisms are connected by a straight shaft, the elliptical machine has only one elliptical motion track, so there is a defect of single action.

Contents of the invention

The technical problem to be solved by the present invention is to provide a double elliptical machine that can exercise similarly to skiing, stepping, jogging and exercise bike.

The technical solution adopted in the present invention is: comprising a base and a fixed armrest connected thereto and two sets of crank and rocker mechanisms, each set of crank and rocker mechanisms are composed of swing armrests, rockers, connecting rods and cranks connected in sequence, and the rocker The upper end of the pedestal is hinged with the connecting shaft on the base, and a pedal is installed on the connecting rod. Two sets of crank-rocker mechanisms are connected through intersecting shaft couplings, and together with the damping adjustment device and the base, they form a double elliptical motion, so that the projection of the trajectory of each pedal on the horizontal and vertical planes is uniform. is an elliptic curve. The outer ends of the left shaft and the right shaft of the coupling pass through the holes of the curved supports on both sides of the base respectively, and are fixedly connected with the upper ends of the cranks on the left and right sides. The included angles are the same so that the axes of the left and right axes form an obtuse angle. The damping adjustment device is fixed on the base through a stand, and the device is provided with two damping blocks, which are in sliding contact with the outer surface of the coupling.

The principle of the present invention is: utilize the moving device that is made up of two sets of crank-rocker mechanisms that are connected with coupling by damping adjusting device, when the person stands on the pedal, when both feet alternately do striding action, due to the two sets of The crank rocker mechanism is on a plane with a certain angle to the vertical plane, so each pedal forms an elliptical motion track on the plane. If the trajectory is projected onto the horizontal plane and the vertical plane, two elliptic curves can be obtained respectively. "Dual Elliptical" means just that.

The present invention is an improved design of the current elliptical machine. Compared with the existing elliptical machine, due to the particularity of the motion track of the double elliptical machine, it can simulate sports such as skiing, climbing steps, jogging and exercise bike, and is a kind of aerobic exercise. Fitness Equipment. It can exercise more limb muscle groups of athletes, exercise the balance and coordination ability of the human body, improve the coordination of the body, and also play a role in bodybuilding.

Description of drawings

Figure 1 is a three-dimensional schematic diagram of a double elliptical machine.

Fig. 2 is a schematic perspective view of the base in Fig. 1 .

FIG. 3 is an enlarged schematic view of the assembly relationship between the damping adjustment device 10 and the double universal joints in FIG. 1 .

Fig. 4 is a schematic structural diagram of the double universal joint in Fig. 1 .

FIG. 5 is a schematic structural diagram of the damping adjustment device 10 in FIG. 1 .

Detailed ways

The structure of the present invention is as shown in Figures 1 to 5: it includes a base and a fixed armrest 1 connected thereto and two sets of crank and rocker mechanisms, and each set of crank and rocker mechanisms is composed of a swing armrest 2, a rocker 3, and a connecting armrest connected in sequence. Rod 5 and crank 7 are formed, and the upper end of rocking bar 3 is hinged with connecting shaft 13 on the base, and pedal 6 is housed on connecting rod 5. Two sets of crank-rocker mechanisms are connected by couplings that are transmitted between intersecting shafts. Together with the damping adjustment device 10 and the base, they form a double elliptical motion, so that the motion track of each pedal 6 is on the horizontal plane and the vertical plane. The projections are all elliptic curves. The outer ends of the left shaft 12 and the right shaft 9 of the coupling pass through the holes 16 of the curved supports 8 on both sides of the base respectively, and are fixedly connected with the upper ends of the cranks 7 on the left and right sides. The axes of the two holes 16 and the horizontal line The included angles are the same, so that the included angles of the axes of the left and right shafts are 120° to 170°. The damping adjustment device 10 is fixed on the base through a stand, and the device is provided with two damping blocks 25, which are in sliding contact with the outer surface of the coupling.

The couplings for transmission between intersecting shafts are double universal joints or flexible shaft couplings.

As shown in Fig. 3 and Fig. 4: the double universal joint is made up of central shaft 17, left shaft 12, right shaft 9 and two cross pin shafts 24. The profile of the central axis 17 is like an "H" shape, and a cross pin 24 is respectively installed at its left and right forks, and a pair of coaxial pins of the two cross pins 24 are hinged with it, and the other pair of coaxial Wire pin shaft is hinged with the inner end of left shaft 12, right shaft 9 respectively. In FIG. 4 , only the structure in which the right shaft 9 is hinged with a cross pin shaft 24 is drawn to show the structure of the cross pin shaft 24 .

The structure of flexible shaft coupling is: be made up of elastic flexible shaft, left shaft 12 and right shaft 9, and elastic flexible shaft connects left shaft 12 and right shaft 9 as a whole. The structure of the elastic flexible shaft is a transmission shaft wound by spring steel wires that can transmit the motion between intersecting shafts.

The structure of the damping adjustment device 10 is shown in Fig. 1, Fig. 3 and Fig. 5: it is provided with two curved levers 19, a double-handed screw rod 18 and a left-handed nut 20 and a right-handed nut 23 threaded therewith. . Two curved levers 19, the upper ends of which are respectively hinged with the left-handed nut 20 and the right-handed nut 23 through the pin shaft 29, the lower ends are respectively hinged with the U-shaped lugs of the stand 22 through the pin shaft 27, and the middle part is hinged with the pin shaft 26 They are respectively hinged with two damping blocks 25 of the left-handed nut 20 and the right-handed nut 23 . A handwheel 21 is provided at one end of the bidirectional screw rod 18 . The two damping blocks 25 are provided with arc-shaped surfaces 28, which are in sliding contact with the outer surface of the central shaft 17 of the double universal joint, or are in sliding contact with the outer surface of the left shaft 12 or right shaft 9 of the flexible shaft coupling . Stand 22 and the support 11 that links to each other with its pedestal constitute aforementioned stand.

The inner ends of the left shaft 12 and the right shaft 9 of double universal joints and flexible shaft couplings can be in a fork structure or other structures.

The base structure is as shown in Figure 2: except for the curved support 8, other parts and connections are the same as those of the prior art. Base is made up of support 4, two curved bearings 8, support 11, coupling shaft 13, pole 14 and ground support 15 by connecting as one. Each curved support 8 is made up of a seat body and an inner inclined end, the seat body is fixed on the connecting rod of the floor stand 15, and the inner inclined end is provided with a hole 16 connecting the curved support 8.

As shown in FIGS. 1 and 2 , the fixed armrest 1 is fixedly connected to the top of the bracket 4 . Swing armrest 2 and rocking bar 3 are fixedly connected together. In the rocking mechanism, one end of the connecting rod 5 is hinged to the lower end of the rocking bar 3, and the other end is hinged to the lower end of the crank 7. The structure of the stand is as shown in Figure 4: it can be made up of a stand 22 and a support 11 connected thereto, the stand 22 is provided with U-shaped lugs, and the support 11 is fixed on the base.

The working process of the present invention: as shown in Figure 1, two sets of crank rocker mechanisms on the left and right are connected through the coupling of transmission between intersecting shafts, which can realize the coordinated power transmission of motion. Step action, pedal 6 just can form ellipse track on space one plane. The exerciser can hold both hands on the swing armrest 2 or the fixed armrest 1 to cooperate with the movement of both feet, and carry out similar sports of skiing, climbing steps, jogging and exercise bike. Through the damping adjustment device 10, the damping can be conveniently adjusted to meet the requirements of exercisers with different exercise intensities.

As shown in Figure 5, hold the hand wheel 21 to rotate the double-handed screw rod 18. Since the two sections on the screw rod have left-handed and right-handed threads respectively, the left-handed nut 20 and the right-handed nut 23 can be moved closer or farther away. Pull the curved lever 19 to adjust the frictional force of the damping block 25 on the outer surface of the central shaft 17 of the double universal joint, or adjust the damping block 25 to the outer surface of the left shaft 12 or right shaft 9 of the flexible shaft coupling of friction.

Claims (10)

1. A double elliptical machine, comprising a base and a fixed armrest (1) connected thereto and two sets of crank and rocker mechanisms, each set of crank and rocker mechanisms being connected in turn by a swing armrest (2), a rocking bar (3), Composed of connecting rod (5) and crank (7), the upper end of the rocking rod (3) is hinged with the connecting shaft (13) on the base, and the connecting rod (5) is equipped with pedals (6), which are characterized in that two sets of cranks The rocker mechanism is connected through the joints of intersecting intershaft transmission, and together with the damping adjustment device (10) and the base, they form a double elliptical motion, so that the motion track of each pedal (6) is on the horizontal plane and the vertical plane The projections are all elliptic curves; the outer ends of the left shaft (12) and the right shaft (9) of the coupling pass through the holes (16) of the curved supports (8) on both sides of the base respectively, and are aligned with the left and right sides of the base. The upper end of the side crank (7) is fixedly connected, the axes of the two holes (16) have the same angle with the horizontal line, so that the axes of the left and right shafts form an obtuse angle; the damping adjustment device (10) is fixed on the base through a stand, and the device is designed There are two damping blocks (25) which are in sliding contact with the outer surface of the coupling. 2. The double elliptical machine according to claim 1, characterized in that: the coupling of intersecting shaft transmission is a double universal joint or a flexible shaft coupling. 3. The double elliptical machine according to claim 2, characterized in that: the double universal joint consists of a central shaft (17), a left shaft (12), a right shaft (9) and two cross pin shafts (24) Composition; the profile of central axis (17) resembles " H " font, and its left and right forks respectively install a cross pin shaft (24), and, a pair of coaxial pin shafts of two cross pin shafts (24) and The other pair of coaxial pins are hinged with the left shaft (12) and the right shaft (9) respectively. 4. The double elliptical machine according to claim 2, characterized in that: the flexible shaft coupling is composed of an elastic flexible shaft, a left shaft (12) and a right shaft (9), and the elastic flexible shaft connects the left shaft (12) and the right shaft (9). Right axle (9) is united as one. 5. The double elliptical machine according to claim 1 or 3, characterized in that: the damping adjustment device (10) is provided with two curved levers (19), and a double-rotation screw (18) and threaded with it left-handed nut (20), right-handed nut (23); two curved levers (19), the upper ends of which are respectively hinged with the two nuts through the pin shaft (29), and the lower ends are respectively connected with the vertical shaft through the pin shaft (27). The U-shaped lug of seat (22) is hinged, and the middle part is respectively hinged with two damping blocks (25) by bearing pin (26). 6. The double elliptical machine according to claim 1, 3 or 4, characterized in that: two damping blocks (25) are provided with arc-shaped surfaces (28), which are connected to the central axis (17) of the double universal joint ) in sliding contact with the outer surface, or in sliding contact with the outer surface of the left shaft (12) or the right shaft (9) of the flexible shaft coupling. 7. The double elliptical machine according to claim 5, characterized in that a hand wheel (21) is provided at one end of the double-rotation screw (18). 8. The double elliptical machine according to claim 1, characterized in that the obtuse angle ranges from 120° to 170°. 9. The double elliptical machine according to claim 1, characterized in that the stand is composed of a stand (22) and a bracket (11) connected thereto, the stand (22) is provided with U-shaped lugs, and the stand (11 ) fixed on the base. 10. The double elliptical machine according to claim 1, characterized in that the motion of the double elliptical machine is similar to that of skiing, stepping, jogging and exercise bike.

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