Wheelchair non-slip tire
By designing specific blocks and groove structures on wheelchair tires, combined with elastic materials and wear-resistant coatings, the problem of insufficient anti-slip effect of wheelchair PU tires is solved, and the tire's anti-slip performance and service life is improved.
Patent Information
- Application Number
- CN202510567073.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2025-07-11
AI Technical Summary
The anti-slip effect of existing wheelchair PU tires is insufficient, which leads to easy slippage when climbing steps, increasing the risk of injury.
A wheelchair anti-pulse tire is designed, adopting a skin anti-slip layer, reinforcement layer and inner connecting layer structure, with specific blocks and grooves on the center and sides, combining elastic materials and wear-resistant coating to enhance friction and wear resistance.
It improves the anti-slip effect and wear resistance of the tire, increases adhesion on the steps, reduces the risk of slippage, and extends the service life.
Smart Images
Figure CN120287760A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of tire design, and particularly to an anti-slip tire for wheelchairs. Background Art
[0002] A tire is an annular elastic rubber product that is mounted on various vehicles or machines and rolls on the ground. It is usually installed on a metal rim to achieve contact with the road surface and ensure the driving performance of the vehicle. During the use of wheelchair tires, whether it is a manual wheelchair or an electric wheelchair, the anti-slip effect of its PU tires is insufficient. When the step exceeds 5 - 8 cm, if there is no deliberate impact and crawling operation, the wheelchair will slip during the crawling process, resulting in the inability to climb the step, making the practical effect of the wheelchair poor and greatly increasing the probability of injury.
[0003] Based on this, an anti-slip tire for wheelchairs is now provided to eliminate the drawbacks of existing technical solutions. Summary of the Invention
[0004] The purpose of the present invention is to provide an anti-slip tire for wheelchairs to solve the problem of insufficient anti-slip effect of existing tires in the background art.
[0005] To achieve the above purpose, the present invention provides the following technical solutions:
[0006] An anti-slip tire for wheelchairs includes a tire body, which is composed of an epidermal anti-slip layer, a reinforcing layer, and an inner connecting layer, all of which are in an annular shape. The epidermal anti-slip layer is coated and connected to the outside of the reinforcing layer, and the inner connecting layer is coated and connected to the inside of the reinforcing layer. The tread structure of the epidermal anti-slip layer consists of a central part and side parts. The central part is provided with two groups of annularly distributed tread blocks, and the side parts are arranged on both sides of the central part.
[0007] Preferably, the central part is composed of a first tread block and a second tread block. The first tread block and the second tread block are both arranged on the tire body along the circumferential direction of the tire. The first tread block is provided with a first tread groove and a second tread groove that are connected to each other on its surface, and the second tread block is provided with a third tread groove and a fourth tread groove that are connected to each other on its surface. The first tread groove and the third tread groove are arranged in the middle of the central part, and the second tread groove and the fourth tread groove are respectively arranged on the left and right sides of the central part.
[0008] Preferably, both the first tread groove and the third tread groove are in a "Y" - shaped structure. The first tread groove is set as a positive "Y" - shaped structure, and the third tread groove is set as an inverted "Y" - shaped structure.
[0009] Preferably, the cross - sections of both the first tread groove and the third tread groove are set as U - shaped.
[0010] Preferably, anti-slip bumps are provided between two adjacent fourth tread grooves. The anti-slip bumps are provided on one side of the second tread block close to the edge of the tire body. A plurality of grooves are formed on the surface of the anti-slip bumps, and the grooves are formed in an inverted "V" shape.
[0011] Preferably, the side portion includes a plurality of raised patterns spaced apart from each other along the circumferential direction of the tire. The raised patterns are inclined toward the edge side of the tire body, and a tread anti-slip pattern is provided on one side of the raised patterns.
[0012] Preferably, a drain groove extending along the circumferential direction of the tire body is formed on the tread of the side portion.
[0013] Preferably, the tire body is made of an elastic material, and the Shore hardness of the elastic material is set to 65-75A.
[0014] Preferably, a wear-resistant coating is applied to the surface of the tire body.
[0015] Preferably, strip-shaped tread ribs are provided at the bottoms of the first tread groove, the second tread groove, the third tread groove and the fourth tread groove.
[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0017] For this wheelchair anti-slip tire, through the mutual cooperation between the tread blocks, tread grooves and strip-shaped tread ribs, the wear resistance of the tire and the adhesion when climbing stairs are enhanced, thereby improving the service life of the tire, making the tire have better practicability, meeting the use requirements. Tread anti-slip patterns and raised patterns are provided on the side portion of the tire, thereby increasing the anti-slip effect of the tire and increasing the friction between the tire and the contact surface. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic structural diagram of one side of the present invention.
[0019] Figure 2 It is a schematic structural diagram of the other side of the present invention.
[0020] Figure 3 It is a schematic front view structural diagram of the present invention.
[0021] Figure 4 For the present invention Figure 1 Partial structural schematic diagram.
[0022] Figure 5 For the present invention Figure 2 Partial structural schematic diagram.
[0023] Figure 6 For the present invention Figure 3 Partial structural schematic diagram.
[0024] Annotation of reference numerals: tire body 1, epidermal anti-slip layer 2, reinforcing layer 3, inner connection layer 4, central part 5, side part 6, first tread block 7, second tread block 8, first tread groove 9, second tread groove 10, third tread groove 11, fourth tread groove 12, anti-slip bump 13, groove 14, raised pattern 15, tread anti-slip pattern 16, drainage groove 17, long strip-shaped tread rib 18. Detailed implementation manners
[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0026] In this embodiment, as Figures 1-6 shown, an anti-slip tire for a wheelchair includes a tire body 1. The tire body 1 is composed of an epidermal anti-slip layer 2, a reinforcing layer 3 and an inner connection layer 4, all of which are in an annular shape. The reinforcing layer 3 can select a suitable material according to the actual scenario, such as a high-modulus polyurethane material with a tensile strength of 40 - 50 MPa, to ensure the rigid support of the tire body. The friction coefficient between the inner connection layer 4 and the rim is ≥0.8 to prevent the tire from slipping. The epidermal anti-slip layer 2 is covered and connected to the outside of the reinforcing layer 3, and the inner connection layer 4 is covered and connected to the inside of the reinforcing layer 3. The tread structure of the epidermal anti-slip layer 2 is composed of a central part 5 and a side part 6 to enhance the local friction and prevent slipping. The central part 5 is provided with two groups of annularly distributed tread blocks, and the side part 6 is arranged on both sides of the central part 5 to improve the wear resistance.
[0027] Among them, as Figure 2 and Figure 4 shown, the central part 5 is composed of a first tread block 7 and a second tread block 8. The first tread block 7 and the second tread block 8 are of an integral structure. The first tread block 7 and the second tread block 8 are both arranged on the tire body 1 along the circumferential direction of the tire. The first tread block 7 is provided with a first tread groove 9 and a second tread groove 10 that are connected and communicated on its surface. The second tread block 8 is provided with a third tread groove 11 and a fourth tread groove 12 that are connected and communicated on its surface. The function of the tread grooves is to quickly drain accumulated water to avoid wet and slippery conditions. The first tread groove 9 and the third tread groove 11 are arranged in the middle of the central part 5, and the second tread groove 10 and the fourth tread groove 12 are respectively arranged on the left and right sides of the central part 5. By providing the first tread block 7 and the second tread block 8, the tire has an anti-slip function. When in use, it can increase the friction between the tire and the contact surface, so that the tire can be stably used on the contact surface and avoid slipping.
[0028] Among them, as Figure 4 - Figure 6As shown, both the first tread groove 9 and the third tread groove 11 are in a "Y" - shaped structure. The first tread groove 9 is set as a positive "Y" - shaped structure, and the third tread groove 11 is set as an inverted "Y" - shaped structure. The positive and inverted "Y" - shaped grooves are arranged cross -wise to form an asymmetric drainage network, enhancing the deformation adaptability during ground contact and improving the grip.
[0029] Among them, as Figure 4 - Figure 6 shown, the cross - sections of both the first tread groove 9 and the third tread groove 11 are set as U - shaped. The above - mentioned grooves are all in a concave structure, used to drain water, foreign objects, etc., improving the tire performance. The width of the groove can be set to 5 - 10 mm, and the groove depth can be set to 3 - 8 mm.
[0030] Among them, as Figure 4 and Figure 6 shown, there are anti - slip bumps 13 arranged between two adjacent fourth tread grooves 12. They can produce elastic deformation in an inclined state, increasing the edge biting force. The anti - slip bumps 13 are arranged on one side of the second tread block 8 close to the edge of the tire body 1. There are several grooves 14 on the surface of the anti - slip bumps 13. The grooves 14 are set as inverted "V" - shaped, and the bottom of the grooves 14 is designed with an arc transition, and the fillet radius ≥ 0.5 mm, which can quickly guide the water to drain out of the tread surface, reducing the risk of hydroplaning.
[0031] Among them, as Figure 4 - Figure 6 shown, the side part 6 includes several raised patterns 15 distributed at intervals along the circumferential direction of the tire. The raised patterns 15 are inclined towards the edge side of the tire body 1. The distance between two adjacent raised patterns 15 can be 2 - 5 mm, increasing the frictional resistance. The inclination angle of the raised patterns 15 can be set to 15 - 25°, and the adjacent pattern spacing is 8 - 12 mm, generating a directional shear resistance and improving the lateral anti - slip performance. There is a tread anti - slip pattern 16 on one side of the raised pattern 15. The tread anti - slip pattern 16 covers the surface of the epidermal anti - slip layer 2, and its thickness is 0.5 - 2 mm.
[0032] Among them, as Figure 2 and Figure 5 shown, there are drainage grooves 17 opened on the tread of the side part 6 extending along the circumferential direction of the tire body 1. The width of the drainage grooves 17 can be set to 3 - 5 mm, and the depth is 2 - 4 mm, increasing the overall practicality.
[0033] Among them, as Figure 1 shown, the tire body 1 is made of an elastic material. The Shore hardness of the elastic material is set to 65 - 75 A, and the rebound rate ≥ 60%. The elastic material can be made of polyurethane or silicone rubber materials, both of which have good wear resistance, elasticity and anti - aging properties, can withstand long - term rolling friction, reduce wear, extend the service life, reduce the replacement frequency, and the elastic material can provide an appropriate elastic deformation ability, so that the contact area can be increased when contacting the edge of the step.
[0034] Among them, as Figure 1 shown, the surface of the tire body 1 is coated with a wear-resistant coating. The wear-resistant coating is made of polyurethane material, the coating thickness is 0.1 - 0.5 mm, the wear-resistant index is ≥ 300 revolutions, which prolongs the service life of the tread blocks.
[0035] Among them, as Figure 4 and Figure 6 shown, strip-shaped tread ribs 18 are provided at the bottoms of the first tread groove 9, the second tread groove 10, the third tread groove 11 and the fourth tread groove 12, which helps to improve the traction performance of the tire, plays a role in timely draining water and mud, and has strong self-cleaning property. In addition, sound-absorbing raised columns for noise reduction can be provided at the groove bottom. This is the prior art. The sound-absorbing raised columns are made of rubber material, have strong wear resistance, anti-aging property, and strong anti-freezing and cracking effect, and reduce noise according to the principle of sound wave refraction by using the uneven flow velocity of sound waves and air currents in the pipeline.
[0036] As described above, this is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims
1. A wheelchair anti-slip tire, comprising a tire body (1), characterized in that, The tire body (1) is composed of a skin anti-slip layer (2), a reinforcing layer (3), and an inner connecting layer (4), all of which are in an annular shape. The skin anti-slip layer (2) is wrapped and connected to the outer side of the reinforcing layer (3), and the inner connecting layer (4) is wrapped and connected to the inner side of the reinforcing layer (3). The tread structure of the skin anti-slip layer (2) consists of a central part (5) and side parts (6). The central part (5) is provided with two groups of annularly distributed tread blocks, and the side parts (6) are arranged on both sides of the central part (5).
2. The anti-slip wheelchair tire according to claim 1, characterized in that, The central part (5) is composed of a first tread block (7) and a second tread block (8). The first tread block (7) and the second tread block (8) are both arranged on the tire body (1) along the circumferential direction of the tire. The first tread block (7) is provided with a first tread groove (9) and a second tread groove (10) that are connected to each other on its surface, and the second tread block (8) is provided with a third tread groove (11) and a fourth tread groove (12) that are connected to each other on its surface. The first tread groove (9) and the third tread groove (11) are arranged in the middle of the central part (5), and the second tread groove (10) and the fourth tread groove (12) are respectively arranged on the left and right sides of the central part (5).
3. The anti-slip wheelchair tire according to claim 2, wherein, Both the first tread groove (9) and the third tread groove (11) are in a "Y" - shaped structure. The first tread groove (9) is set as a positive "Y" - shaped structure, and the third tread groove (11) is set as an inverted "Y" - shaped structure.
4. The anti-slip wheelchair tire according to claim 2, wherein, The cross - sections of both the first tread groove (9) and the third tread groove (11) are set as U - shaped.
5. A non-slip wheelchair tire according to claim 2, characterized in that, An anti - slip convex block (13) is arranged between two adjacent fourth tread grooves (12). The anti - slip convex block (13) is arranged on the side of the second tread block (8) close to the edge of the tire body (1). The surface of the anti - slip convex block (13) is provided with a number of grooves (14), and the grooves (14) are set as inverted "V" - shaped.
6. The anti-slip wheelchair tire according to claim 1, characterized in that, The side part (6) includes a number of convex patterns (15) that are spaced apart along the circumferential direction of the tire. The convex patterns (15) are inclined towards the edge side of the tire body (1), and a tread anti - slip pattern (16) is arranged on one side of the convex patterns (15).
7. A non-slip wheelchair tire according to claim 1, characterized in that, A drainage groove (17) extending along the circumferential direction of the tire body (1) is opened on the tread of the side part (6).
8. A non-slip wheelchair tire according to claim 1, wherein, The tire body (1) is made of an elastic material, and the Shore hardness of the elastic material is set to 65 - 75A.
9. The anti-slip wheelchair tire according to claim 1, characterized in that, The surface of the tire body (1) is coated with a wear - resistant coating.
10. A non-slip wheelchair tire according to claim 2, characterized in that, Long - strip tread ribs (18) are arranged at the bottoms of the first tread groove (9), the second tread groove (10), the third tread groove (11), and the fourth tread groove (12).