TWM653541U - Folding leg lift machine - Google Patents

Abstract

A foldable leg lift machine includes at least a base assembly, a main armrest, two drive rods, and a linkage mechanism, wherein the base assembly includes a first bracket, a second bracket, and two third brackets that can be folded and pivoted to each other, and the main armrest is fixed to the front section of the first bracket and includes an upper armrest rod and a lower fixed rod that can be folded and pivoted to each other at one end, and the upper armrest rod is provided with a handle The two driving rods are respectively pivoted at their upper ends on one side of each third bracket as a rotation fulcrum and swing in an alternating arc track, and a pedal is pivoted at their lower ends, and the linkage mechanism is pivoted at one end to the rear side of the two third brackets at the same time, and the other end is pivoted at the upper end of the two driving rods at the same time, so that the two driving rods swing in an alternating and limited manner in the front and back through the linkage mechanism; thereby, the folding function and the leg-lifting fitness effect are achieved at the same time.

Description

Folding leg lift machine

This creation is about a folding leg-lifting machine, which refers to a leg-lifting fitness equipment that has both folding functions and interactive leg-lifting and swinging fitness.

According to the previously applied leg-lifting machine, as shown in patent certificate numbers M469091, I573614, and I766793, it generally includes a base, a front handlebar bracket, a rear bracket, a driving mechanism, a magnetically controlled resistance mechanism, and a linkage mechanism. The driving mechanism is composed of two actuating rods, one end of which is swingably connected to the two sides of the rear bracket and the other end of which is hinged with two pedals. A sprocket and a chain are respectively assembled between the two sides of the rear bracket and one end of the two actuating rods. The magnetically controlled resistance mechanism can be driven unidirectionally by the sprocket and generate a resistance, and the linkage mechanism allows the two actuating rods to swing in opposite directions. However, it has the following disadvantages: (1) The cost of the sprocket and chain is too high, and it takes time to calibrate and adjust for smooth rotation. (2) The magnetic control resistance mechanism has at least a magnetic control component, a rotating wheel, and a belt (or chain), which leads to high costs. (3) The above two points even cause a long assembly time, resulting in too high a cost for the whole machine. In the current economic downturn, buyers cannot accept it and it is difficult to sell. (4) It cannot be folded for storage, and takes up space.

Therefore, how to use new structural forms to truly improve the above shortcomings and conduct research and development of improved structures is indeed a goal that the relevant industries need to work hard on.

In view of the fact that leg-lifting machines have magnetic resistance mechanisms and linkage mechanisms that are too expensive and take a long time to assemble, the cost of the entire machine is too high and difficult to sell, and it cannot be folded and stored, taking up space.

This invention provides a folding leg raising machine, including:

A base assembly includes a first bracket, a second bracket, and two third brackets, wherein the first and second brackets are respectively fixed with a horizontal bar that can be placed flat on the ground at their lower ends, the upper end of the second bracket is foldably pivoted to the middle section of the first bracket, and the upper ends of the two third brackets are respectively foldably pivoted to the two sides of the upper end of the first bracket;

A main handrail frame, the lower end of which is fixed to the front section of the first bracket, and the upper end of which is provided with a handle;

The two driving rods are respectively pivoted at their upper ends on one side of each third bracket as a rotation fulcrum and swing in an alternating arc track back and forth, and their lower ends are respectively pivoted with a pedal;

A linkage mechanism includes a swing seat and two linkage rods. The swing seat is pivotally arranged on the rear side of the two third brackets in a left-right symmetrical swinging manner. Each linkage rod is pivotally connected to the left and right sides of the swing seat at its lower end, and pivotally connected to the upper end of each driving rod at its upper end, so that the two driving rods can be swung back and forth in an alternating and limited manner through the swing seat.

The effectiveness of this creation is:

The alternating leg-lifting movements can effectively stretch the hip, knee, and ankle joints, and stretch the core muscles such as the abdomen and buttocks. It is quick to assemble, low-cost, and easy to sell. Multiple components can be folded together to reduce the volume of shipping packaging materials and facilitate storage without taking up space.

10: Base assembly

11: First bracket

111: Axis

12: Second bracket

13: The third bracket

14: Crossbar

15: Crossbar

16: Fixing parts

20: Main handrail frame

21: Upper handrail

22: Lower fixed rod

23: Grip

24: Control Panel

30:Drive rod

31: The First Ear

32: The Second Arm

40: Pedal

50: Seat

60: Linkage mechanism

61: Swinging seat

62: Linkage rod

70:Fixed pin

80:Fixed pin

90: Secondary handrail assembly

91: First linkage rod

92: Second connecting rod

93: Third linkage rod

Figure 1 is a three-dimensional combination diagram of the first embodiment of this creation.

Figure 2 is a three-dimensional exploded view of the first embodiment of this creation.

Figure 3 is a rear view of the first embodiment of this creation.

Figure 4 is a reference diagram for the usage of the first embodiment of this creation.

Figure 5 is a folding reference diagram of the first embodiment of this creation.

Figure 6 is a three-dimensional combination diagram of the second embodiment of this creation.

Figure 7 is a three-dimensional exploded view of the second embodiment of this creation.

Figure 8 is a reference diagram for the usage of the second embodiment of this creation.

Figure 9 is a folding reference diagram of the second embodiment of this creation.

In order to enable the review committee to have a deeper understanding and knowledge of the purpose, features and effects of this creation, please list the following examples in conjunction with the [Simple Diagram Description] and explain them in detail as follows:

First, as shown in the first embodiment of Figures 1 to 5, this invention is a foldable leg-lifting machine, including:

A base assembly 10 includes a first bracket 11, a second bracket 12, and two third brackets 13, wherein the first and second brackets 11, 12 are respectively fixed with a horizontal bar 14, 15 which can be placed flat on the ground at their lower ends, the upper end of the second bracket 12 is foldably pivoted to the middle section of the first bracket 11, the upper ends of the two third brackets 13 are foldably pivoted to the two sides of the upper end of the first bracket 11, and the lower ends are placed on the ground, and the second bracket 12 is inserted between the two third brackets 13. The second bracket 12 and the second third bracket 13 are fixed to each other by a fixing pin 70, and a fixing member 16 is fixed between the second third bracket 13; a main handrail frame 20 includes an upper handrail rod 21 and a lower fixing rod 22 which are folded and hinged at one end, and the upper handrail rod 21 and the lower fixing rod 22 are fixed to each other by a fixing pin 80, the other end of the upper handrail rod 21 is provided with a handle 23 and a control panel 24 is provided on the top, and the other end of the lower fixing rod 22 is fixed to the front section of the first bracket 11;

The two driving rods 30 are respectively pivoted at their upper ends on one side of each third bracket 13 as a rotation fulcrum and swing in an alternating arc track forward and backward, and a pedal 40 is pivoted at their lower ends. In addition, a first hinge 31 extends from the upper ends of the two driving rods 30;

A seat 50 is arranged on the first bracket 11 and close to the upper end of the first bracket 11; a linkage mechanism 60 includes a swing seat 61 and two linkage rods 62. The swing seat 61 is arranged on the rear side of the fixing member 16 of the second third bracket 13 in a left-right symmetrical swinging manner. Each linkage rod 62 is pivoted at its lower end to the left and right sides of the swing seat 61, and pivoted at its upper end to the first hinge 31 at the upper end of each driving rod 30, so that the two driving rods 30 are swung in a front-back alternating limited manner through the swing seat 61.

The upper end of the first bracket 11, the upper ends of the two third brackets 13, and the two driving rods 30 are pivotally arranged with the same axis 111.

Secondly, in the second embodiment shown in Figures 6 to 9, the following components are added:

The two auxiliary handrails 90 are pivoted on the two sides of the base 10, wherein the upper ends of the two driving rods 30 extend a second hinge 32 respectively. The auxiliary handrail 90 further includes a first connecting rod 91, the first connecting rod 91 is pivoted at its lower end on one side of the main handrail 20 and extends a second connecting rod 92. The first connecting rod 91 and the second connecting rod 92 are at different angles, and the lower end of the second connecting rod 92 is pivoted to the front end of a third connecting rod 93, and the rear end of the third connecting rod 93 is pivoted to the second hinge 32 at the upper end of the driving rod 30.

Based on the above structure and component design, the usage of this creation is explained as follows:

(1) First, as shown in the first embodiment of Figures 1 to 5, when the athlete uses the device, he holds the fixed handle 23 with both hands and steps on the pedal 40 with his feet. The linkage mechanism 60 on the rear side of the third bracket 13 swings symmetrically left and right, so that the two drive rods 30 swing in an arc track with mutual front and rear limit.

(2) Secondly, in the second embodiment shown in Figures 6 to 9, in addition to the above description (1), the auxiliary armrest frame assembly 90 is added on both sides of the base assembly 10, and the first connecting rod 91 is held by both hands, and the two driving rods 30 are swung together, so that the athlete can swing the hands and legs at the same time when using it.

Through the structure of the above specific implementation example, this creation can obtain the following benefits:

(I) In the first and second embodiments, the interactive leg-lifting movements can effectively stretch the hip, knee, and ankle joints, and stretch the core muscles such as the abdomen and buttocks.

(II) In the second embodiment, in addition to retaining the advantages described in the above paragraph (I), the crossed hands can also be swung forward and backward to stretch the forearms, upper arms, triceps and other muscle groups.

(III) There is no complicated magnetic control resistance mechanism and linkage mechanism, the assembly is fast, the assembly and component costs are low, the price of the whole machine is quite competitive, and it is easy to be favored by buyers and consumers.

(IV) As shown in Figures 5 and 9, by disassembling and assembling the fixing pins 70 and 80, the first bracket 11, the second bracket 12, the second and third brackets 13, the upper handrail rod 21, and the lower fixing rod 22 can be folded together, which not only reduces the volume of shipping packaging materials for the seller and reduces the import cost for the buyer, but also allows the purchaser to fold them for easy storage without taking up space.

In summary, this creation can effectively solve the shortcomings of the known creation and can be easily implemented by people with ordinary knowledge in the technical field. However, the above is only a better implementation example of this creation and should not be used to limit the scope of implementation of this creation; that is, all equivalent changes and modifications made according to the scope of the patent application of this creation should still be within the scope of the patent of this creation.

10: Base assembly

11: First bracket

111: Axis

12: Second bracket

13: The third bracket

14: Crossbar

15: Crossbar

16: Fixing parts

20: Main handrail frame

21: Upper handrail

22: Lower fixed rod

23: Grip

24: Control Panel

30:Drive rod

31: The First Ear

40: Pedal

50: Seat

60: Linkage mechanism

61: Swinging seat

62: Linkage rod

70:Fixed pin

80:Fixed pin

Claims (9)

A foldable leg-lifting machine comprises: a base assembly, which comprises a first bracket, a second bracket, and two third brackets, wherein the first and second brackets are respectively fixed with a horizontal bar which can be placed flat on the ground at their lower ends, the upper end of the second bracket is foldably pivoted to the middle section of the first bracket, and the upper ends of the two third brackets are respectively foldably pivoted to the two sides of the upper end of the first bracket; a main armrest frame, which is fixedly connected to the front section of the first bracket at its lower end, and has a handle at its upper end; Two driving rods, each with its upper end pivoted on one side of each third bracket as a rotation fulcrum and swinging in an arc track in an alternating manner, and each of the lower ends pivoted with a pedal; a linkage mechanism, including a swing seat and two connecting rods, the swing seat pivoted on the rear side of the two third brackets in a left-right symmetrical swinging manner, each connecting rod pivoted at its lower end to the left and right sides of the swing seat, and pivoted at its upper end to the upper end of each driving rod, so that the two driving rods swing in an alternating manner in an alternating manner in an alternating manner in an front-back direction through the swing seat. According to the folding leg-lifting machine described in Item 1 of the patent application, the first bracket, the two third brackets, and the two driving rods are pivotally arranged with the same axis. According to the folding leg-lifting machine described in Item 1 of the patent application, the second bracket is inserted between the two third brackets, and the second bracket and the two third brackets are fixed to each other by a fixing pin. According to the folding leg-lifting machine described in Item 1 of the patent application, the first bracket is provided with a seat. According to the folding leg-lifting machine described in Item 1 of the patent application, the main armrest frame further includes an upper armrest rod and a lower fixed rod that are folded and hinged at one end, and the upper armrest rod and the lower fixed rod are fixed to each other by a fixing pin. The upper armrest rod is provided with the handle, and the other end of the lower fixed rod is fixed to the front section of the first bracket. According to the folding leg-lifting machine described in Item 1 of the patent application, a control panel is provided on the top of the main armrest. According to the foldable leg-lifting machine described in Item 1 of the patent application, a fixing member is fixed between the two third brackets, and the swing seat is pivoted on the fixing member with a center point to swing symmetrically left and right. According to the folding leg-lifting machine described in Item 1 of the patent application, a first hinge extends from the upper end of the driving rod, and the first hinge is hinged to the upper end of the connecting rod. According to the folding leg-lifting machine described in item 1 of the patent application, a second hinge extends from the upper end of the two driving rods, and a secondary armrest assembly is hinged on both sides of the base assembly, and the secondary armrest assembly further includes a first connecting rod, the first connecting rod is hinged at its lower end behind one side of the main armrest and extends to a second connecting rod, and the lower end of the second connecting rod is hinged to the front end of a third connecting rod, and the rear end of each third connecting rod is hinged to each second hinge.

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