TWI476029B - Folding device for a treadmill field - Google Patents

Description

Treadmill lift folding mechanism

The invention relates to a running device, in particular to a treadmill lifting and folding mechanism.

According to the treadmill as a common fitness equipment, in addition to being installed in the fitness center for customers to use, the general user can also set the treadmill at home, and can be used at any time to achieve the fitness effect. In order to meet the needs of customers, the treadmill must be constantly innovative in design, so that the treadmill can meet the customer's functionality and convenience.

Please refer to U.S. Patent No. 5,585,537, which discloses a POWERED FOLDING TREADMILL APPARATUS AND METHOD, which is provided with support legs (12, 14) on both sides of a walking platform (10). The support legs are provided with lift motors (36, 38) respectively to drive the associated actuator (44) to expand and contract, and the front end of the step platform is lifted when the actuator rises, and the front end of the step platform is lowered when the actuator is lowered, resulting in When the actuator is lowered again, the lever arm (48) is pivoted, and the rear end of the walking platform is lifted up by the engagement of the male teeth (54) and the female teeth (46). However, the running device disclosed in the previous case has the following problems:

1. The lifting action of the walking platform is mainly achieved by the lifting motor, the actuator and the lever arm of the two supporting legs, and is driven by the lift motor when the front end of the walking platform is lifted. The lever arm is pulled up, and when the walking platform is to be folded and the rear end is raised, the actuator is driven by the lift motor. The lever arm is displaced downward and the rear end of the walking platform is lifted by the engagement of the male teeth and the female teeth, thereby showing that the movement of the front end of the walking platform and the lifting of the rear end are obviously two different actions, so The complexity of component and motion design leads to the problem that the cost cannot be effectively reduced.

2. When the front end of the walking platform is raised or raised at the back end, the mechanism should be designed to move up and down simultaneously, but the actuators on both sides of the walking platform are driven by independent lift motors, if the circuit is controlled There are errors in the operation of the two lift motors, errors in the transmission between the lift motor and the actuator, errors in the assembly between the actuator and the lever arm, and errors in the meshing of the male teeth 54 and the female teeth 46. Both of them will cause the two sides of the walking platform to be unable to move synchronously, so the design must be relatively precise and accurate, otherwise the process yield will be poor, and the lift motor, actuator and lever arm in each support leg will be More problems have also led to the problem that costs cannot be effectively reduced.

Therefore, how to solve the problem of the above-mentioned running device of the prior case is the main focus of the present invention.

The main object of the present invention is to solve the above problems and provide a treadmill lifting and folding mechanism, which uses a lifter to drive the swing arm to move the front end of the walking platform to be raised, and supports the top support device during the lifting process. The walking platform allows the walking platform to continue to pivot to the folding position. With the lifting device driving the swing arm in a single direction, the front end of the walking platform can be pivoted to the folding position when the front end is raised and folded. It can simplify the design of components and motions, and can solve the problem that the two sides of the walking platform can not be synchronously raised and lowered, so as to achieve the effect that the process cost can be effectively reduced.

For the purpose of the foregoing, the present invention includes: a base; a walking platform, the rear end can be disposed on the ground; a swing arm having a first pivot end pivotally connected to the walking platform and having a second pivot The connecting end is pivotally connected to the front end of the base, and the swing arm has a pivoting portion between the first pivoting end and the second pivoting end; a lifter, one end of which is pivotally connected to the base, and the other end and the pivot The front end of the walking platform can be driven by the lifter to be pivoted by the lifter and pivoted by the second pivotal end, and when raised to a predetermined stroke, The front end of the walking platform is no longer lifted. At this time, when the lifter continues to drive the swing arm, the walking platform will lift the rear end of the walking platform by the support of a supporting device, and then can be pivoted to Folding position.

The above and other objects and advantages of the present invention will be readily understood from

Of course, the invention may be varied on certain components, or in the arrangement of the components, but the selected embodiments are described in detail in the specification and their construction is shown in the drawings.

Referring to Figures 1 through 9, the structure of the embodiment selected for use in the present invention is for illustrative purposes only and is not limited by such structure in the patent application.

The embodiment provides a treadmill lifting and folding mechanism, which is shown in Figures 1 to 3, and includes a base 1 and a walking platform 2, the walking platform 2 is erected on the base 1 and the front end of the step platform 2 is raised relative to the base 1. Between the base 1 and the walking platform 2, in the embodiment, a swing arm 3, a supporting device 4 and a Lifter 6, where:

As shown in the second to third embodiments, the swing arm 3 is pivotally disposed on the walking platform 2 with the first pivoting end 31. The second pivoting end 32 is pivotally disposed at the front end of the base 1, and the pivoting portion 33 is located at the front end. The walking platform 2 is between the front and rear ends.

As shown in FIGS. 2 to 3, the stepping platform 2 has a connecting portion 21, and the first pivoting end 31 of the swing arm 3 is pivotally connected to the connecting portion 21. The jacking device 4 includes two connecting rods 5 and two sliding slots 22 respectively located on two sides of the swing arm 3 adjacent to the side of the walking platform 2, and each connecting rod 5 has one end on the walking platform The front end of the second step is pivoted on the base 1 and the other end extends through the connecting portion 21 and has a protruding portion 51 extending laterally at the end. The two sliding slots 22 are respectively located on both sides of the walking platform 2 And each of the predetermined strokes, the protruding portion 51 of each of the connecting rods 5 is extended in the corresponding side of the sliding groove 22 and can slide in the predetermined stroke. In the embodiment, the front end of the walking platform 2 is provided with a pulley 23, which can be abutted against the ground when the walking platform 2 is folded.

As shown in Figs. 2 to 3, the lifter 6 includes a lift motor 61 and a screw 62 that drives the screw 62 to be axially displaced. The lifter 6 is in this embodiment. One end of the screw 62 is pivotally connected to the pivoting portion 33 of the swing arm 3, and the end of the lift motor 61 is pivotally disposed on the base 1 away from the front end of the step platform 2, the screw 62 is The pivotal portion of the pivoting portion 33 of the swing arm 3 is opposite to the upper side, and one end of the lift motor 61 is opposite to the pivotal portion of the base 1. The screw 62 is caused to drive the swing arm 3 to swing upward and obliquely.

As shown in FIG. 4, the stepping platform 2 of the present embodiment has two buffering devices between the front end and the lower base 1. In this embodiment, the cushion 11 is made of a soft material, and the two cushions 11 are in this embodiment. The base 1 is fixed on the base 1 and is located on both sides of the base 1. The second cushion 11 is an excellent glue in the embodiment. When the walking platform 2 is carried on the base 1, the cushion platform 11 can be absorbed by the cushion platform 2 The force of the pressure is positioned in a horizontal state as shown in Fig. 5 (the elevation angle of the front end of the step platform 2 is 0 degrees). As shown in FIG. 6, the base 1 has a second stop 12 at a position where the swing arm 3 is pivoted. When the swing arm 3 is propped up by the lifter 6, the second stop 12 is placed on the walking platform 2 In the rising state, the swing arm 3 is blocked in the direction in which the swing arm 3 is propped up. As shown in Figs. 2 to 3, the base 1 of the present embodiment is provided with a pulley 13.

As shown in FIG. 7, when the walking platform 2 wants to raise the front end, the screw 62 is extended by the driving of the lift motor 61 of the lifter 6, and the swing arm 3 is driven to drive the front end of the walking platform 2 to rise ( In the state shown in Fig. 7, the elevation angle is 8.6 degrees; if the step platform 2 is to be folded into the upright state, the driving of the lift motor 61 of the lifter 6 is again performed, as shown in Fig. 8. The screw 62 is further extended until the protruding portion 51 slides to the end of the predetermined stroke of the sliding slot 22, and the protruding portion 51 supports the walking platform 2 in the sliding slot 22, and the front end of the walking platform 2 is raised. The angle of the lifting is 13 degrees at the maximum lifting angle. At this time, the base 1, the walking platform 2, the swing arm 3, and the connecting rod 5 are converted into a four-bar linkage mechanism, and the screw 62 continues to extend, as in the first Figure 9 shows the walking platform 2 from the back end The pendulum is stopped until the blocking portion 12 blocks, and can be changed from the lying posture to the standing posture.

In short, the front end of the walking platform 2 can be driven by the lifter 6 to be swung by the swinging arm 32 and pivoted by the second pivoting end 32, and when raised to the predetermined After the trip, the front end of the walking platform 2 is no longer lifted. At this time, when the lifter 6 continues to drive the swing arm 3, the walking platform 2 will be reared by the top support device 4 to make the walking platform 2 The end is lifted up and can be pivoted to the folding position. This shows that it is not difficult to find the advantages of the present invention in that:

1. The lifting action of the walking platform is mainly caused by the lifting motor 61 driving the screw 62 to drive the swing arm 3 to swing up and down, and the screw 62 of the lifter 6 is extended to cause the swing arm 3 to drive the walking platform 2 When the front end is raised, the screw 62 only needs to be extended in a single direction to change the walking platform 2 from the lying posture to the standing posture, and the front end of the walking platform of the conventional running device is raised and the rear end is raised when folded. The operation is obviously two different actor. The invention has relatively simple design of components and motion, and the process cost can be effectively reduced.

2. When the front end of the walking platform 2 of the present invention is raised or raised at the rear end, since only one lifter 6 drives the swing arm 3 to drive, the left and right sides of the walking platform 2 can be synchronously raised and lowered. There is no need to consider the various errors of the conventional running device, which may cause the two sides of the walking platform 2 to be unable to be synchronously raised and lowered. Therefore, the design does not need to be particularly precise and accurate, and the effect of synchronous lifting can be achieved. In other words, the process yield of the present invention. It is relatively preferred, and the number of components of the lift-and-fold mechanism relative to the conventional running device is small, and the process cost can also be Effectively reduced.

Of course, there are many examples of the invention, with only minor variations in the details. Please refer to FIG. 10 , which is a treadmill lifting and folding mechanism according to a second embodiment of the present invention. The first embodiment includes a base 1 , a walking platform 2 , a swing arm 3 , a jacking device 4 and an In the embodiment, the two connecting rods 5 of the supporting device 4 are replaced by two telescopic rod members 7, which are respectively located on both sides of the swing arm 3 and adjacent to the walking platform 2 In the embodiment, an inner tube 70 is disposed in an outer tube 71, and the inner tube 70 is normally ejected in the outer tube 71 by a compression unit (not shown). The compression unit may be a compressed air or a compression spring. One end of the outer tube 71 is pivotally disposed on the base 1 at the front end of the step platform 2, and the inner tube 70 extends through the connecting portion 21 at the opposite end and is at the end. The side is pivotally connected to both sides of the walking platform 2.

As shown in Fig. 11, the screw 62 is extended to urge the swing arm 3 to raise the front end of the walking platform 2. As shown in Fig. 12, when the screw 62 is extended again, the inner tube 70 of the telescopic rod member 7 is supported by the urging platform 2 with the force of ejection, and the screw 62 continues to extend so that the step platform 2 is swung from the rear end to the rear end. It stands up, thereby achieving the same effect as the first embodiment.

Referring to FIG. 13 , a treadmill lifting and folding mechanism according to a third embodiment of the present invention includes a base 1 , a walking platform 2 , a swing arm 3A , a jacking device 4 and a lifter 6 . The swing arm 3A has a first pivoting end 31A, a second pivoting end 32A and a pivoting portion 33A. The first pivoting end 31A of the swinging arm 3A has a receiving portion 311A. The resisting portion 311A is fixed in the same motion as the swing arm 3A. The abutting portion 311A has abutting surface 312A, and the swing arm 3A is pivotally connected to the two sides of the walking platform 2 adjacent to the supporting portion 311A. When the swing arm 3A swings up, the abutting portion 311A abuts the surface. The 312A supports the bottom surface of the walking platform 2, and the predetermined stroke is the stroke of the walking platform 2 from the horizontal lifting to the abutting surface 312A on the bottom surface of the walking platform 2.

As shown in FIG. 14, the screw 62 is extended to drive the swing arm 3A to swing upward, and the front end of the walking platform 2 is lifted, and the supporting portion 311A supports the walking platform when the walking platform 2 is raised to a certain height. 2. As shown in Fig. 15, when the screw 62 is extended again, since the swing arm 3A supports the walking platform 2 with its abutting portion 311A, when the screw 62 continues to extend, the walking platform 2 is propped up to be pivoted from the rear end. To the folding position, thereby achieving the same effect as the first embodiment.

The above description of the embodiments is intended to be illustrative of the invention and is not intended to limit the scope of the invention.

From the above detailed description, it will be apparent to those skilled in the art that the present invention can achieve the foregoing objects and is in accordance with the provisions of the Patent Law.

1‧‧‧Base

11‧‧‧ cushion

12‧‧ ‧ blocking

13‧‧‧ pulley

2‧‧‧健步平台

21‧‧‧Connecting Department

22‧‧‧Chute

23‧‧‧ pulley

3‧‧‧ swing arm

31‧‧‧First pivot end

32‧‧‧Second pivotal end

33‧‧‧ pivotal department

4‧‧‧Top support

5‧‧‧ Connecting rod

51‧‧‧Protruding

6‧‧‧Lifter

61‧‧‧Lifting motor

62‧‧‧ screw

7‧‧‧ Telescopic rods

70‧‧‧Inside

71‧‧‧External management

3A‧‧‧ swing arm

31A‧‧‧First pivot end

311A‧‧‧Resistance Department

312A‧‧‧ by face

Fig. 1 is a perspective view showing the treadmill of the first embodiment of the present invention.

Fig. 2 is a perspective view showing the connection between the base and the walking platform of the first embodiment of the present invention by a swing arm, a connecting rod and a lifter.

Fig. 3 is a bottom plan view showing the treadmill of the first embodiment of the present invention.

Figure 4 is a schematic view showing the step platform of the first embodiment of the present invention carried on the base on the cushion.

Fig. 5 is a schematic view showing the stepping platform of the first embodiment of the present invention in a horizontal posture on the base.

Fig. 6 is a schematic view showing the swing arm of the first embodiment of the present invention being blocked by the stopper.

Fig. 7 is a schematic view showing the front end of the walking platform of the first embodiment of the present invention as it is raised during running.

Figure 8 is a schematic view showing the front end of the stepping platform of the first embodiment of the present invention raised to the end of the connecting rod and displaced to the end of the chute.

Figure 9 is a schematic view showing the stepping platform of the first embodiment of the present invention pivoted from the rear end to the folded position.

Figure 10 is a perspective view showing the connection between the base and the walking platform of the second embodiment of the present invention by a swing arm, a telescopic rod member and a lifter.

Figure 11 is a schematic view showing the front end of the walking platform of the second embodiment of the present invention when it is running.

Figure 12 is a schematic view showing the stepping platform of the second embodiment of the present invention pivoted from the rear end to the folded position.

Figure 13 is a perspective view showing the connection between the base and the walking platform of the third embodiment of the present invention with the swing arm and the lifter.

Figure 14 is a schematic view showing the front end of the walking platform of the third embodiment of the present invention when it is running.

Figure 15 is a schematic view showing the stepping platform of the third embodiment of the present invention pivoted from the rear end to the folded position.

1‧‧‧Base

11‧‧‧ cushion

12‧‧ ‧ blocking

13‧‧‧ pulley

2‧‧‧健步平台

21‧‧‧Connecting Department

22‧‧‧Chute

23‧‧‧ pulley

3‧‧‧ swing arm

31‧‧‧First pivot end

32‧‧‧Second pivotal end

33‧‧‧ pivotal department

4‧‧‧Top support

5‧‧‧ Connecting rod

51‧‧‧Protruding

6‧‧‧Lifter

61‧‧‧Lifting motor

62‧‧‧ screw

Claims (10)

A treadmill lifting and folding mechanism, comprising: a base; a walking platform, the rear end can be disposed on the ground; a swing arm having a first pivoting end pivotally connected to the walking platform and having a second The pivoting end is pivotally connected to the front end of the base, and the swing arm has a pivoting portion between the first pivoting end and the second pivoting end; a lifter, one end of which is pivotally connected to the base, and the other end is The pivoting portion is pivotally connected; the front end of the walking platform can be driven by the lifter and swinged by pivoting the second pivoting end, and when raised to a predetermined stroke The front end of the walking platform is no longer lifted. At this time, when the lifter continues to drive the swing arm, the walking platform will lift the rear end of the walking platform by the support of a supporting device, and then pivot To the folding position. The treadmill lifting and folding mechanism according to the first aspect of the invention, wherein the supporting device comprises a connecting rod and a sliding slot, wherein the sliding slot is disposed on the walking platform, and one end of the connecting rod is pivotally connected to the base, and One end slides on the chute. The treadmill lifting and folding mechanism of claim 2, wherein the walking platform has a connecting portion, and the first pivoting end of the swing arm is pivotally connected to the connecting portion; the chute has the predetermined stroke And the other end of the connecting rod moves within the predetermined stroke, and limits the angle at which the front end of the walking platform is raised by the predetermined stroke, when the other end of the connecting rod moves At the end of the predetermined stroke of the chute, the driving platform will be lifted by the rear end and pivoted to the folding position by the driving of the jack. The treadmill lifting and folding mechanism of claim 1, wherein the base has a stop to limit the swinging of the swing arm. The treadmill ascending folding mechanism according to claim 1, wherein a buffer device is disposed between the front end of the walking platform and the base. The treadmill lifting and folding mechanism according to claim 1, wherein the front end of the walking platform is provided with a pulley which can be abutted on the ground when the walking platform is folded. The treadmill lifting and folding mechanism according to the first aspect of the invention, wherein the supporting device is a telescopic rod member, one end of which is pivotally connected to the base and the other end of which is pivotally connected to the walking platform. The treadmill ascending folding mechanism according to the seventh aspect of the invention, wherein the telescopic rod member provides the predetermined stroke by relative displacement of the inner and outer tubes, and limits the angle at which the front end of the walking platform is raised by the predetermined stroke. The treadmill lifting and folding mechanism according to the first aspect of the invention, wherein the supporting device has a receiving portion at a first pivot end of the swing arm, and the supporting portion is fixed to the swing arm The same movement, and the abutment has abutment. The treadmill ascending folding mechanism according to claim 9 , wherein the predetermined stroke is a stroke of the walking platform from horizontally rising to the abutting surface of the abutting platform on the bottom surface of the walking platform.