TWM465296U - Improved structure of tubeless wheel rim - Google Patents

Description

Tubeless rim structure improvement

The present invention relates to a bicycle rim structure, and in particular to a tubeless rim structure improvement with low cost and easy assembly.

According to the conventional bicycle multi-layer rim, it can be roughly divided into a tube inner tube and a tubeless tube. Among them, when the multi-layer rim with no tube tube shape is used with the tire, the weight is light because the inner tube is omitted. Quantitative advantage, and when the tire is pierced by foreign objects, it can be repaired without disassembling the tire, greatly reducing maintenance cost and maintenance time, and the tire's response to the road undulation (road feeling) is more direct, which is beneficial to the user. Riding control.

Since the tubeless multi-layer rim is implemented, it has many advantages as described above, and is gradually adopted by bicycles. However, the multi-layered rim of the tubeless tube ensures airtightness during implementation, so only the nozzle receiving hole will penetrate the inner and outer layers of the multi-layer rim, and the locking hole provided by the spoke can only penetrate the outer layer of the multi-layer rim. . When the multi-layer rim is produced, there will be troubles in the removal of the keyhole swarf, and the assembly and adjustment can only rely on the nozzle accommodating hole to cooperate with the tool to penetrate, which is very time-consuming and laborious in assembling and adjusting the related processes. .

In order to overcome this deficiency, the industry is trying to use it with the inner tube. The multi-layer rim structure is applied to the implementation of the tubeless tube, thereby overcoming the lack of the conventional special tubeless multi-layer rim, which is lacking in production, assembly and adjustment. Referring to FIG. 3, the multi-layer rim 9 which is required to be integrated with the inner tube is provided. The outer layer 91 is provided with a plurality of locking holes 92 through which the spokes 81 can be inserted, and the inner layer 93 corresponds to the locking hole 92. A through hole 94 is provided through which the tool can be inserted, thereby facilitating the locking and adjustment of the spoke 81 and the fixing member 82. After the spoke 81 is locked, the through hole 94 is sealed by a sealing patch 95. When the multi-layer rim 9 is used in combination with the tire 7, the inner layer 93 of the multi-layer rim 9 and the inside of the tire 7 can be made airtight.

This technique can solve the lack of the conventional lamina-free multi-layer rim, but since the sealing patch 95 can be attached to the bottom surface of the inner layer 93 of the multi-layer rim 9, the sealing patch 95 must have a certain ductility. And because of this malleability. When the sealing patch 95 is implemented, under the force of the tire pressure, the sealing patch 95 is protruded toward the through hole 94 of the multi-layer rim 9, causing the outer edge of the sealing patch 95 to be pulled and corrected to lose gas. Dense, or broken by the tire pressure and lost airtightness.

It can be seen from the above embodiments that the sealing patch 95 has some improvement. Therefore, those skilled in the art have proposed to replace the sealing patch 95 with the bump 97 and the spacer 98. Please refer to FIGS. 4 and 5. In the figure, the structure of the multi-layer rim 9 and the combination with the spokes 81 and the fixing member 82 are the same as those of the above embodiment, so that no further description is made. Only the different ones need to be on the outer edge of the multi-layer rim 9. A clip portion 96 is symmetrically disposed.

When the tire 7 is used, the through holes 94 of the multi-layer rim 9 are first filled by the bumps 97, and then the spacers 98 are used to lay along the bottom surface of the inner layer 93 of the multi-layer rim 9. The free ends of the two sides of the spacer 98 are plugged into the clamping portion 96 of the multi-layer rim 9, and are pressed by the bead portions 71 at both ends of the tire 7, so that the spacer 98 and the interior of the tire 7 are formed. hermetic space. Unfortunately, this structure has high production cost and is not easy to assemble, and the tire 7 needs to have good adhesion with the gasket 98 and the multi-layer rim 9 at the same time, which results in high production technical requirements and tolerance between the components. Small and so on.

In view of the problems and deficiencies of the above-mentioned prior art, the main purpose of the present invention is to provide a structural improvement of the tubeless rim, which provides a low production threshold and low production cost by matching the layers of different steel and ductility. And easy to operate, and the tolerance between the components allows for a large tubeless rim structure.

According to the above object of the present invention, a structural improvement of a tubeless rim is proposed, which comprises a multi-layer rim, a mouth layer and a pressure-resistant layer. Wherein, the multi-layer rim comprises an outer layer and an inner layer, and a plurality of locking holes and through holes corresponding to the plurality of positions are arranged through the inner and outer layers. The sealing layer is disposed on the bottom surface of the inner layer, and by the ductility of the sealing layer, the sealing layer can be attached to the bottom surface of the inner layer and the through holes can be closed. In addition, the pressure resistant layer is coated on the sealing layer and the bottom surface of the inner layer. By the composition of the above-mentioned components, when the tire is applied, the pressure-resistant layer is subjected to the pressure of the tire pressure, and the sealing layer is further tightly pressed. In addition to ensuring that the sealing layer closes the through-holes, the airtightness between the bottom surface of the inner layer and the tire is ensured. And the influence of the tire pressure on the sealing layer is isolated, and the tire pressure is prevented from causing the sealing layer to be corrected and the airtightness and the like are lost. As another tubeless rim structure A preferred implementation option.

1‧‧‧Multilayer rim

11‧‧‧ outer layer

12‧‧‧ inner layer

13‧‧‧Keyhole

14‧‧‧through hole

15‧‧‧ spokes

16‧‧‧Fixed parts

2‧‧‧Seal layer

3‧‧‧Compressive layer

4‧‧‧ tires

7‧‧‧ tires

71‧‧‧The lip part

81‧‧‧ spokes

82‧‧‧Fixed parts

9‧‧‧Multilayer rims

91‧‧‧ outer layer

92‧‧‧Keyhole

93‧‧‧ inner layer

94‧‧‧through hole

95‧‧‧Seal patch

96‧‧‧ Clips

97‧‧‧Bumps

98‧‧‧shims

Fig. 1 is an exploded perspective view showing an improved embodiment of the creation of a tubeless rim structure.

Fig. 2 is a schematic cross-sectional view showing an improved embodiment of the creation of a tubeless rim structure.

Figure 3 is a schematic cross-sectional view of a conventional embodiment of a multi-layer rim.

Figure 4 is a schematic exploded view of another embodiment of a multi-layer rim.

Figure 5 is a schematic cross-sectional view of another embodiment of a multi-layer rim.

Hereinafter, the modified embodiment of the creation of the tubeless rim structure will be further described with reference to the related drawings. In order to facilitate the understanding of the present embodiment, the same components are denoted by the same symbols.

Referring to Figures 1 and 2, the creation of the tubeless rim structure of the present invention comprises a multi-layer rim 1 and a mouth layer 2 and a pressure-resistant layer 3 disposed on the bottom surface of the multi-layer rim 1.

The multi-layered rim 1 includes an outer layer 11, an inner layer 12, a plurality of locking holes 13 and a through hole 14. The multi-layer rim 1 has an outer layer 11 and an inner layer 12, and each of the locking holes 13 is formed through the outer layer 11, and each of the through holes 14 is formed through the inner layer. The positions of the lock holes 13 and the through holes 14 correspond to each other.

The sealing layer 2 is disposed on the bottom surface of the inner layer 12 of the multi-layer rim 1, and the sealing layer 2 has a predetermined ductility so that the bottom surface can be affixed to the bottom surface and the through holes 14 can be closed. When implemented, the sealing layer 2 can be selectively taken in a strip shape, and corresponding to one surface of the bottom surface of the inner layer 12, an adhesive can be preliminarily provided for the user to be disposed on the bottom surface of the inner layer 12.

The pressure-resistant layer 3 is applied on the sealing layer 2 and the bottom surface of the inner layer 12. The pressure-resistant layer 3 has a predetermined rigidity, whereby the steel is subjected to the pressure of the tire pressure and further tightened by the tire pressure. The sealing layer 2 and the bottom surface of the inner layer 12 are bonded. When implemented, the pressure-resistant layer 3 can selectively take a strip shape, and the width of both sides of the pressure-resistant layer 3 is larger than the width of both sides of the sealing layer 2. In addition, an adhesive may be provided in advance for one surface of the cover layer 2 to facilitate user setting.

Therefore, the above is the introduction of various components of the preferred embodiment of the tubeless rim structure, and then the assembly method and the use characteristics of the present invention are as follows: First, the keyhole of the multi-layer rim 1 13 is provided to extend one end of the spoke 15 and cooperate with the through hole 14 (not shown) to lock the fixing member 16 to fix the spoke 15 of the end, after the spoke 15 and the nozzle (not shown) are set. The sealing layer 2 is disposed along the bottom surface of the inner layer 12 of the multi-layer rim 1, and is disposed to be adhered to the adhesive or the adhesive of the sealing layer 2 itself, and the through holes 14 of the inner layer 12 are closed. The sealing layer 2 has ductility and can be suitably attached to the bottom surface of the inner layer 12 to ensure the sealing of the through holes 14. Further, the pressure-resistant layer 3 is applied to the bottom surface of the sealing layer 2 and the inner layer 12, and the adhesive agent or the pressure-sensitive adhesive layer 3 itself can be adhered to the pressure-sensitive adhesive layer 3 itself.

When the tire 4 is used, the pressure-resistant layer 3 is pressed by the pressure of the tire pressure, and can be more closely attached to the bottom surface of the sealing layer 2 and the inner layer 12. In addition to ensuring that the sealing layer 2 closes the through-holes 14, the inner layer 12 can be ensured. The bottom surface and the tire 4 are airtight, and the influence of the tire pressure on the sealing layer 2 is isolated, so as to avoid the loss of the airtightness such as the correction of the sealing layer 2.

The above description is only for the preferred embodiment of the present invention, and is intended to clarify the features of the present invention, and is not intended to limit the scope of the present embodiment, and the average variation made by those skilled in the art according to the present creation. Changes that are well known to those skilled in the art, and still fall within the scope of this creation.

1‧‧‧Multilayer rim

11‧‧‧ outer layer

12‧‧‧ inner layer

13‧‧‧Keyhole

14‧‧‧through hole

15‧‧‧ spokes

16‧‧‧Fixed parts

2‧‧‧Seal layer

3‧‧‧Compressive layer

4‧‧‧ tires

Claims (5)

A structural improvement of a tubeless rim comprises: a multi-layer rim comprising an outer layer and an inner layer, wherein the outer layer is provided with a plurality of keyholes, and the inner layer is provided with a plurality of permeable holes a hole, and each of the through holes corresponds to each of the positions of the locking holes; a layer of a mouth having a predetermined extension force, the sealing layer being disposed on a bottom surface of the inner layer, and closing each of the through holes; and a pressure resistance The layer has a predetermined rigidity, and the pressure-resistant layer is coated on the sealing layer and the bottom surface of the inner layer; wherein, when the multi-layer rim is combined with a tire, the pressure-resistant layer is subjected to the pressure of the tire pressure, The sealing layer and the bottom surface of the inner layer are pressed tightly, and the influence of the tire pressure on the sealing layer is isolated. The improvement of the tubeless rim structure according to claim 1, wherein the sealing layer has a strip shape. The improvement of the tubeless rim structure according to claim 1, wherein the pressure resistant layer has a strip shape. The improvement of the tubeless rim structure according to the first aspect of the invention, wherein the sealing layer is bonded to one side of the inner layer, and an adhesive is provided. The improvement of the tubeless rim structure according to the first aspect of the invention, wherein the pressure-resistant layer is bonded to one side of the sealing layer, and an adhesive is provided.