Telescoping wheel

Abstract

This invention provides a telescopic wheel, comprising a hub, multiple rims, and multiple spokes; each rim has a track; each spoke includes a first rod, a second rod, a member, and an elastic member. One end of the first rod is connected to the hub, one end of the second rod and one end of the member are slidably mounted on the track, and the other end of each is pivotally connected to the first rod. The elastic member is disposed between the second rod and the member. Therefore, when the telescopic wheel of this invention is subjected to gravity or external force, the angle between the second rod and the member can be changed by the sliding of a slider within the track of the rim, thereby adjusting the overall length of the spokes. After the pressure from gravity or external force is removed, the second rod and the member can return to their initial position by the rebound of the elastic member. The overall structure is simple, and the diameter and elasticity of the telescopic wheel can be changed according to the ground environment during movement, without requiring additional power.

Description

Technical Field

[0001] This invention relates to a wheel structure, and more particularly to a telescopic wheel that can automatically adjust the spoke length while rolling. Background Technology

[0002] Wheels are widely used in transportation vehicles, locomotives, machinery, and other transport equipment, and are the most important component of all types of transport equipment.

[0003] The existing wheel structure includes a tire and a rim. The tire is fitted onto the rim and is used by friction between the tire and the ground. The existing rim includes a hub, a rim frame and multiple spokes. One end of the multiple spokes is fixed to the hub and the other end is connected to the rim frame. The tire is fitted onto the rim frame so that the tire can travel on a flat ground.

[0004] Most existing tires are made of rubber, which absorbs the vibrations caused when the tire moves on irregular roads. Most existing wheel rims are made of one-piece metal or non-ferrous metal, which increases the support of the wheel rim through the one-piece structure.

[0005] However, when encountering stairs or terrain with elevation differences, the existing tire structure does not have the function of climbing or ascending. Therefore, even if the car, motorcycle, machinery or transportation equipment equipped with it has power, it cannot successfully complete the climbing or ascending function. In addition, when the transportation equipment is a wheelchair, if the wheels installed on the wheelchair do not have the function of climbing or ascending, even if the wheelchair is equipped with a motor or other power, it will cause great trouble for users with mobility impairments or assistants. Summary of the Invention

[0006] The main objective of this invention is to provide a telescopic wheel that can automatically adjust the spoke length according to the ground environment it contacts, thus enabling the wheel to climb or ascend.

[0007] Another objective of this invention is to provide a telescopic wheel that has a simple structure and low manufacturing cost.

[0008] To achieve the aforementioned objectives, the present invention provides a telescopic wheel, comprising a hub; a plurality of wheel rims, each wheel rim having a track formed on one side, the track extending from one end of the wheel rim to the other end and forming a track opening at each opposite end of the wheel rim, with a blocking block provided at each of the plurality of track openings; and a plurality of spokes, each comprising a first rod, a second rod, a rod member, and an elastic member, wherein one end of the first rod is connected to the hub, one end of the second rod and one end of the rod member are slidably disposed on the track and the other end of the second rod are pivotally connected to the first rod, and the elastic member is disposed between the second rod and the rod member, wherein when the telescopic wheel rolls up or down a slope or up or down stairs, the second rod and the rod member swing asymmetrically relative to each other.

[0009] In one embodiment of the present invention, the telescopic wheel further includes a plurality of tires, the plurality of tires being respectively disposed on the plurality of wheel rims.

[0010] In one embodiment of the present invention, a slider is provided at one end of the second rod and the rod member respectively, and the two sliders are slidably disposed on the track.

[0011] In one embodiment of the present invention, the plurality of spokes may be arranged in two rows side by side and staggered around the hub, and the plurality of wheel frames disposed on the plurality of spokes are arranged in two rows side by side and staggered around the hub.

[0012] In one embodiment of the present invention, multiple parallel and staggered wheel frames may partially overlap or not overlap at all.

[0013] The advantage of this invention is that when the telescopic wheel of this invention is subjected to gravity or external force, the spokes can change the angle between the second rod and the rod by sliding the slider in the slide rail of the wheel frame, so as to adjust the overall length of the spokes. After the gravity or external force is removed, the second rod and the rod can return to the initial position by the elastic member rebounding, and it can operate without an additional power source. Attached Figure Description

[0014] Figure 1 This is a perspective view of the telescopic wheel according to the first embodiment of the present invention.

[0015] Figure 2 for Figure 1 An enlarged view of the number I.

[0016] Figure 3 This is a front view of the telescopic wheel according to the first embodiment of the present invention.

[0017] Figure 4 for Figure 3 Sectional view of line II-II.

[0018] Figure 5This is a schematic diagram of the climbing mechanism of the telescopic wheel according to the first embodiment of the present invention.

[0019] Figure 6 This is a schematic diagram of the extension wheel according to the first embodiment of the present invention.

[0020] Figure 7 and Figure 8 These are asymmetrical schematic diagrams of the telescopic wheel according to the first embodiment of the present invention.

[0021] Figure 9 This is a schematic diagram of the asymmetrical climbing mechanism of the telescopic wheel according to the first embodiment of the present invention.

[0022] Figure 10 This is a schematic diagram of the retractable wheel with the tire mounted on the wheel rim according to the second embodiment of the present invention.

[0023] Figure 11 This is a perspective view of the telescopic wheel according to the third embodiment of the present invention.

[0024] Figure 12 This is a perspective view of the telescopic wheel according to the fourth embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 10A, 10B, 10C, 10D - Wheel hubs;

[0027] 20A, 20B, 20C, 20D - Wheel rims;

[0028] 21A-orbit;

[0029] 22-track opening;

[0030] 23-Side opening;

[0031] 30A, 30B, 30C, 30D - spokes;

[0032] 31A - Rod;

[0033] 311A - First rod;

[0034] 311B - Second rod;

[0035] 32A - Elastic element;

[0036] 34A - Slider;

[0037] 35A - Angle;

[0038] 40-Blocking Block;

[0039] 50-Tire;

[0040] 90 - Stairs. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] Figure 1 This is a three-dimensional assembly diagram of the telescopic wheel according to the first embodiment of the present invention. Figure 2 for Figure 1 An enlarged view of the number I. Figure 3 This is a front view of the telescopic wheel according to the first embodiment of the present invention. Figure 1 , Figure 2 and Figure 3 As shown, the present invention provides a telescopic wheel, including a hub 10A, multiple wheel rims 20A, and multiple wheel spokes 30A. The following is a detailed explanation of each component.

[0043] Each of the multiple wheel frames 20A is provided with a track 21A.

[0044] Each of the plurality of spokes 30A includes: a first rod 311A, a second rod 311B, a rod member 31A, and an elastic member 32A; wherein, a slider 34A is respectively provided at one end of the second rod 311B and the rod member 31A, and the slider 34A is slidably mounted on the track 21A; the other ends of the second rod 311B and the rod member 31A are pivotally connected to one end of the first rod 311A, and the other end of the first rod 311A ​​is connected to the hub 10A; the elastic member 32A is disposed between the second rod 311B and the rod member 31A. In the first embodiment of the present invention, the hub 10A may be made of plastic, metal, or metal covered with plastic material.

[0045] Please refer to Figure 1 , Figure 3 and Figure 4 , Figure 4 for Figure 3 The cross-sectional view is shown in line II-II. In the first embodiment of the present invention, a slider 34A is provided at one end of the second rod 311B and the rod 31A; the two ends of the wheel frame 20A are respectively formed with a track opening 22 communicating with the track 21A, and a side opening 23 communicating with the track 21A is formed on the side of the wheel frame 20A, wherein the width of the side opening 23 is smaller than the width of the track 21A, the width of the slider 34A is larger than the width of the side opening 23, and the diameter of the second rod 311B and the rod 31A is smaller than the width of the side opening 23.

[0046] Preferably, each wheel frame 20A of the telescopic wheel is also provided with two blocking blocks 40, which are respectively located at both ends of the track 21A. Specifically, the two sliders 34A located on the second rod 311B and the rod 31A slide into the track 21A from the track openings 22 at both ends of the wheel frame 20A, while the two rods 31A slide into the side openings 23. Then, the two blocking blocks 40 are respectively located at the track openings 22 at both ends of the wheel frame 20A to prevent the two sliders 34A from sliding out of the track 21A when sliding inside the track 21A.

[0047] Figure 5 This is a schematic diagram of the climbing mechanism of the telescopic wheel according to the first embodiment of the present invention. Figure 6 This is a schematic diagram of the extension of the telescopic wheel according to the first embodiment of the present invention. Figure 5 and Figure 6 As shown, when the telescopic wheel of the present invention is in use, the hub 10A is first connected to a car, motorcycle, wheelchair or machinery or other transportation equipment. When the telescopic wheel carries the weight of the car, motorcycle, wheelchair or machinery or other transportation equipment (including passengers or users) and rolls up and down slopes or stairs, the multiple spokes 30A and the wheel frame 20A at the bottom in an inclined state will be subjected to oblique reaction force and swing in the opposite direction. This causes the rod 31A in the track 21A and the slider 34A of the second rod 311B to move in opposite directions respectively, while the elastic member 32 between the rod 31A and the second rod 311B is subjected to tension and undergoes tensile deformation. At this time, the total length of the stressed spokes 30A will be less than the length of the other unstressed spokes 30A due to compression deformation.

[0048] Preferably, the swing angle 35A between the rod 31A and the second rod 311B is between 0° and 90°.

[0049] Specifically, when the telescopic wheels of the present invention climb stairs 90 (e.g.) Figure 7 As shown, due to the deformation of the multiple spokes 30A and the wheel frame 20A at the bottom of the telescopic wheel under the pressure of gravity, the rod 31A and the second rod 311B slide outward in opposite directions via the track 21A after being subjected to force, and the sliding is stopped by the blocking block 40. Therefore, the total length of the deformed spokes 30A is shorter than that of the unforced spokes 30A, so that the unforced spokes 30A can be stuck on the next staircase 90 to be climbed or on terrain with height difference. When the pressure is released, the elastic force of the stretched elastic member 32A causes the rod 31A and the second rod 311B to return to their original position, so that the total length of the deformed spokes 30A is restored to its original length, thereby achieving the function of climbing or ascending.

[0050] Figure 7 and Figure 8 These are schematic diagrams illustrating the asymmetrical oscillation of the telescopic wheel according to the first embodiment of the present invention. Figure 7 and Figure 8 As shown, rod 31A and the second rod 311B can pivot relative to the first rod 311A, making climbing more convenient. It is worth mentioning that... Figure 7 and Figure 8 In the illustrated embodiment, the swing of rod 31A and the second rod 311B is asymmetrical, wherein, for example... Figure 7 The second rod 311B on the right side shows a slight oscillation, while the rod 31A on the left side shows a large sliding; for example... Figure 8 The left-side rod 31A swings slightly, while the right-side rod 311B swings significantly. The asymmetrical swing of the rods 31A and 311B causes one end of the wheel rim 20A to be lifted up, making it suitable for the wheel to climb hills or stairs.

[0051] Figure 9 This is a schematic diagram illustrating the asymmetrical swinging climbing motion of the telescopic wheel's rod 31A and second rod 311B according to the first embodiment of the present invention. Figure 9 As shown, when the telescopic wheel is climbing a slope or stairs 90 and is subjected to gravity or external force, the multiple spokes 30A and the wheel frame 20A located at the bottom of the telescopic wheel will be deformed by the force, causing the sliders 34A located in the track 21A and the second rod 311B to move unequal distances to both ends of the track 21A, while the elastic member 32A between the rod 31A and the second rod 311B will be subjected to tensile force and undergo tensile deformation.

[0052] When the wheel rim 20A, which was originally in contact with the ground and deformed, detaches from the ground and is no longer subjected to gravity or other external forces, the elastic element 32A between the rod 31A and the second rod 311B rebounds, causing the rod 31A and the second rod 311B to move back to their initial positions.

[0053] Figure 10 This is a schematic diagram showing a tire mounted on the rim of a telescopic wheel according to a second embodiment of the present invention. Figure 10 As shown, the difference between the second embodiment and the first embodiment of the present invention is that the telescopic wheel further includes multiple tires 50, which are respectively disposed on the multiple wheel rims 20B. The arrangement of the tires 50 increases the contact area between the telescopic wheel and the ground, and also significantly increases the friction, thus facilitating the telescopic wheel's climbing ability. The multiple spokes 30B are arranged around the hub 10B, and each spoke 30B is provided with one tire 50; adjacent tires 50 are not connected to each other.

[0054] Figure 11 This is a perspective view of the telescopic wheel according to the third embodiment of the present invention. Figure 11As shown, the difference between the third embodiment and the first embodiment of the present invention is that a plurality of spokes 30C are arranged in two rows, side by side and staggered, surrounding the hub 10C. Preferably, in the third embodiment of the present invention, the plurality of adjacent spokes 20C partially overlap each other. By the staggered arrangement of two rows that partially overlap each other, the telescopic wheel can have relatively high stability.

[0055] Figure 12 This is a perspective view of the telescopic wheel according to the fourth embodiment of the present invention. Figure 12 As shown, the difference between the fourth embodiment and the first embodiment of the present invention is that the plurality of spokes 30D are arranged in two rows, side by side and staggered, surrounding the hub 10D. Preferably, in the fourth embodiment of the present invention, adjacent spokes 20D do not overlap with each other at all. By means of two rows of completely non-overlapping and staggered arrangements surrounding the hub, the telescopic wheel can have highly efficient climbing or ascending ability.

[0056] By installing the telescopic wheels of the present invention on automobiles, locomotives, machinery or transport equipment, automobiles, locomotives, machinery or transport equipment can climb various staircases 90.

[0057] In summary, the present invention enables the spokes 30A to slide within the slide rail via the slider 34A when the telescopic wheel is subjected to gravity or external pressure, thereby adjusting the overall length of the spokes 30A. Furthermore, after the pressure from gravity or external force is removed, the two rods 31A can return to their initial position by the rebound of the elastic member 32A, and the invention can operate without the need for an additional power source.

[0058] Furthermore, the present invention can achieve the effect of adjusting the diameter and elasticity of the telescopic wheel when rolling by means of the structure of multiple wheel frames 20A and multiple wheel spokes 30A. The overall structure is simple and the manufacturing cost is low.

[0059] The above description is merely for explaining preferred embodiments of the present invention and is not intended to limit the present invention in any way. Therefore, any modifications or changes made to the present invention under the same inventive spirit should still be included within the scope of protection intended by the present invention.

Claims

1. A telescopic wheel, characterized in that, include: One wheel hub; Multiple wheel rims, each wheel rim having a track formed on one side, the track extending from one end of the wheel rim to the other end and forming a track opening at each opposite end of the wheel rim, with a blocking block provided at each of the multiple track openings; and The wheel has multiple spokes, each including a first rod, a second rod, a member, and an elastic member. One end of the first rod is connected to the wheel hub. One end of the second rod and the member are slidably mounted on the track, and the other end is pivotally connected to the first rod. The elastic member is disposed between the second rod and the member. When the telescopic wheel rolls up or down a slope or stairs, the second rod and the member swing asymmetrically.

2. The telescopic wheel according to claim 1, characterized in that, It also includes multiple tires, which are respectively disposed on the multiple wheel rims.

3. The telescopic wheel according to claim 1, characterized in that, The second rod and one end of the rod are each provided with a slider, and the two sliders slide on the track.

4. The telescopic wheel according to claim 1, characterized in that, The plurality of spokes are arranged in two rows, side by side and staggered around the hub, and the plurality of wheel frames provided on the plurality of spokes are arranged in two rows, side by side and staggered around the hub.

5. The telescopic wheel according to claim 4, characterized in that, Multiple adjacent and staggered wheel frames may partially overlap or not overlap at all.

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