TWM649896U - Adjustable seat tube - Google Patents

Abstract

The adjustable seat tube of the present invention includes an outer tube, an inner tube that can slide relative to the outer tube, a plurality of ribs and at least one O-ring. The ribs are spacedly combined with the outer surface of the inner tube, and each The rib can slide in the positioning groove of the outer tube. The O-ring is in a compressed state and is located between the inner tube and one of the ribs. It can be elastically compressed to generate a bias, thereby pressing the rib against In the corresponding positioning groove, and reducing the rotation margin of the inner tube relative to the outer tube, through the different deformation degrees of the O-ring, the margin between the outer tube and the inner tube can be controlled to an appropriate Therefore, when the sizes of the outer tube and the inner tube are different, the inner tube and the outer tube can be effectively prevented from shaking relative to each other due to excessive rotation margin.

Description

Adjustable seatpost

The invention relates to a bicycle seat tube, in particular to an adjustable seat tube with adjustable height.

In order to allow users to adjust the seat height according to their height and leg length, the existing bicycle seat tube includes an outer tube, an inner tube that can slide relative to the outer tube, and a plurality of ribs, wherein the plurality of ribs are combined with the inner tube. The outer surface extends along the length direction of the existing bicycle seat tube to slide in the positioning groove on the inner surface of the outer tube to prevent the inner tube from rotating arbitrarily relative to the outer tube, causing shaking and making it difficult to ride the bicycle.

However, since the inner tube and the outer tube of the existing bicycle seat tube have different sizes respectively, if the same ribs are applied in one piece, the rotation margin between the inner tube and the outer tube of the existing bicycle seat tube will be too large, and still There will be a problem of shaking. Therefore, the existing bicycle seat tube does need to be improved.

In order to solve the problem that the existing bicycle seat tube still has the inner and outer tubes shaking relatively, the present invention provides an adjustable seat tube, which effectively improves the above problem, and is further explained as follows.

The new type of adjustable seat tube has a length direction and includes: An outer tube. The outer tube has an opening and a plurality of positioning grooves. The opening is formed at one end of the outer tube. Each positioning groove is recessed on the inner surface of the outer tube. Each positioning groove is along the length direction. extend; An inner tube slidably inserted into the outer tube through the opening; A plurality of ribs, the plurality of ribs are spaced apart from each other and combined with the outer surface of the inner tube. Each of the ribs extends along the length direction. When the inner tube is inserted into the outer tube, each of the ribs extends into one of the corresponding ribs. The positioning groove is capable of sliding in the positioning groove; and At least one O-ring. The O-ring is in a compressed state and is located between the inner tube and one of the ribs. It can be elastically compressed to generate a bias, thereby pressing the rib against the corresponding positioning groove. , and reduce the rotation margin of the inner tube relative to the outer tube.

In the above-mentioned adjustable seat tube, the outer surface of the inner tube is concavely provided with a plurality of receiving grooves, and each rib is correspondingly combined in one of the receiving grooves and protrudes from the outer surface of the inner tube, and the receiving groove The shape matches the shape of the rib, and the O-ring is located in the groove.

Furthermore, in the above-mentioned adjustable seat tube, a groove is recessed on one side where the rib and the inner tube are combined, so that the O-ring can be embedded in the groove, and the O-ring Partially extends out of this groove.

In the above-mentioned adjustable seat tube, the shape of the positioning groove matches the shape of the portion of the rib extending therein.

Preferably, in the above-mentioned adjustable seat tube, the outer tube is provided with three said positioning grooves, the three positioning grooves are arranged at equal angles and spaced apart, and the adjustable seat tube is provided with three said ribs and one. As for the O-ring, the three ribs respectively correspond to the three positioning grooves, and the O-ring is located between one of the ribs and the inner tube.

Preferably, in the above-mentioned adjustable seat tube, the outer tube is provided with three said positioning grooves, the three positioning grooves are arranged at equal angles and spaced apart, and the adjustable seat tube is provided with three said ribs and three In the O-ring, the three ribs respectively correspond to the three positioning grooves, and each O-ring is respectively located between one of the ribs and the inner tube.

Preferably, in the above-mentioned adjustable seat tube, the outer tube is provided with three said positioning grooves, and the three positioning grooves are arranged at equal angles and spaced apart, and the adjustable seat tube is provided with three said ribs and six said ribs. In the O-ring, the three ribs respectively correspond to the three positioning grooves, and two of the O-rings are disposed between each rib and the inner tube, and the two O-rings are spaced apart.

Through the above technical features, the new adjustable seat tube of the present invention can control the margin between the outer tube and the inner tube within an appropriate range through the different deformation degrees of the O-ring. When the size of the tube and the inner tube are different, the inner tube and the outer tube are effectively prevented from shaking relative to each other due to excessive rotation margin, thereby effectively solving the problems encountered in the prior art.

In order to understand the technical features and practical effects of the present invention in detail, and to implement them in accordance with the contents of the description, the preferred embodiments shown in the drawings are further described in detail as follows:

The present invention is an adjustable seat tube, and its preferred embodiment is as shown in Figures 1 to 4. The adjustable seat tube has a length direction L and includes an outer tube 10, an inner tube 20, a combining component 30, and multiple A rib 40 and at least one O-ring 50. As shown in Figures 2, 4 and 5, the outer tube 10 has an opening 11 and a plurality of positioning grooves 12. The opening 11 is formed on the outer tube 10. At one end, each positioning groove 12 is recessed on the inner surface of the outer tube 10, and each positioning groove 12 extends along the length direction L; as shown in Figures 2 and 4, the inner tube 20 passes through the opening 11 The outer tube 10 is inserted and can slide along the length direction L; as shown in Figures 2 and 4, the combination component 30 is sleeved on the inner tube 20 and combined with the opening 11 of the outer tube 10, located at The top end of the outer tube 10 is used to tightly combine the outer tube 10 and the inner tube 20 without causing radial shaking.

Please refer to FIGS. 2 to 5 . The plurality of ribs 40 are coupled to the outer surface of the inner tube 20 at intervals. Each of the ribs 40 extends along the length direction L. When the inner tube 20 is inserted into the When the outer tube 10 is used, as shown in FIG. 4 , each rib 40 extends into one of the positioning grooves 12 and can slide in the positioning groove 12 . Further, as shown in FIGS. 4 and 5 , the ribs 40 protrude from the outer surface of the inner tube 20 . If the inner tube 20 moves upward along the length direction L for too long, the ribs 40 will be The combination assembly 30 blocks the inner tube 20 from being accidentally pulled out during normal operation.

Please refer to FIGS. 3 to 5 . The O-ring 50 is located between the inner tube 20 and one of the ribs 40 and can be elastically compressed to generate a bias, thereby pressing the rib 40 against the corresponding rib 40 . The positioning groove 12 is formed, and the rotation margin of the inner tube 20 relative to the outer tube 10 is reduced.

Through the above technical features, the new adjustable seat tube of the present invention can control the margin between the outer tube 10 and the inner tube 20 within an appropriate range through the different deformation degrees of the O-ring 50, so it can When the outer tube 10 and the inner tube 20 have different sizes, the inner tube 20 and the outer tube 10 are effectively prevented from shaking relative to each other due to excessive rotation margin, thereby effectively solving the problems encountered in the prior art.

Further, as shown in FIGS. 3 to 5 , the outer surface of the inner tube 20 is concavely provided with a plurality of grooves 21 , and each rib 40 is correspondingly integrated into one of the grooves 21 and protrudes from the inner tube 20 . The outer surface of the accommodating groove 21 matches the shape of the rib 40 so that the rib 40 cannot move arbitrarily after being coupled to the accommodating groove 21. As shown in Figures 4 and 5, The O-ring 50 is located in the groove 21, thereby making the inner tube 20, the rib 40 and the O-ring 50 a modular component to avoid the structure of the adjustable seat tube being too fragmented. .

Further, as shown in Figures 3 to 6, a groove 41 is recessed on one side of the rib 40 combined with the inner tube 20, so that the O-ring 50 can be embedded in the groove. 41, and the O-ring 50 partially extends out of the groove 41 to abut the bottom surface of the corresponding receiving groove 21, thereby generating a bias that can push the rib 40 to abut the corresponding positioning groove 12. pressure to maintain the effect of reducing the rotation margin of the inner tube 20 relative to the outer tube 10 .

Please refer to FIGS. 5 and 6 . The shape of the positioning groove 12 matches the shape of the portion of the rib 40 extending therein, thereby effectively reducing the rotation margin of the inner tube 20 relative to the outer tube 10 . Spend. In this preferred embodiment, the shape of the outside of the rib 40 is a convex arc surface, and the shape of the positioning groove 12 is a corresponding concave arc surface.

Preferably, please refer to Figure 5. In this preferred embodiment, the outer tube 10 is provided with three positioning grooves 12, and the three positioning grooves 12 are arranged at equal angles and spaced apart, that is, at an angle of Arranged at intervals of 120 degrees, the adjustable seat tube is provided with three ribs 40 and three O-rings 50. The three ribs 40 respectively correspond to the three positioning grooves 12, and each of the O-rings 50 is respectively Correspondingly located between one of the ribs 40 and the inner tube 20 .

In addition, the number of the O-rings 50 can be adjusted according to actual needs. For example, in another embodiment, the adjustable seat tube is only provided with one O-ring 50, and the O-ring 50 is located at Between one of the ribs 40 and the inner tube 20, the other two ribs 40 do not have matching O-rings 50. In another embodiment, the adjustable seat tube is provided with six O-rings 50 , two of the O-rings 50 are disposed between each rib 40 and the inner tube 20 , and the two O-rings 50 are The rings 50 are arranged at intervals. For example, the two O-rings 50 can be located at the upper and lower positions of the corresponding ribs 40 (the O-rings 50 shown in Figure 3 are the lower positions), the upper and middle positions, or the middle and lower positions. , which can be set and adjusted according to actual needs. As long as the O-ring 50, the rib 40 and the positioning groove 12 are matched, the gap between the inner tube 20 and the outer tube 10 can be adjusted according to the elastic deformation degree of the O-ring 50, thereby reducing the The effect of the rotation margin is in line with the creative purpose of the present invention.

The above are only preferred embodiments of the present invention and do not limit the present invention in any form. Anyone with ordinary knowledge in the technical field can utilize the present invention without departing from the scope of the technical solutions proposed by the present invention. Equivalent embodiments with partial changes or modifications to the disclosed technical content without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

10:Outer tube 11: Open your mouth 12: Positioning slot 20:Inner tube 21: Container 30: Combine components 40:ribs 41: Groove 50:O-ring L:Length direction

Figure 1 is a three-dimensional appearance view of a preferred embodiment of the present invention. Figure 2 is an exploded perspective view of the preferred embodiment of the present invention. Figure 3 is an exploded perspective view of the inner tube, ribs and O-ring of the preferred embodiment of the present invention. Figure 4 is a partially enlarged side cross-sectional view of the preferred embodiment of the present invention. Figure 5 is an end sectional view of the preferred embodiment of the present invention. Figure 6 is a partial enlarged view of Figure 5.

20:Inner tube

21: Container

40:ribs

41: Groove

50:O-ring

L:Length direction

Claims (8)

An adjustable seat tube has a length direction and includes: An outer tube. The outer tube has an opening and a plurality of positioning grooves. The opening is formed at one end of the outer tube. Each positioning groove is recessed on the inner surface of the outer tube. Each positioning groove is along the length direction. extend; An inner tube slidably inserted into the outer tube through the opening; A plurality of ribs, the plurality of ribs are spaced apart from each other and coupled to the outer surface of the inner tube. Each of the ribs extends along the length direction. When the inner tube is inserted into the outer tube, each of the ribs extends into one of the corresponding ribs. The positioning groove is capable of sliding in the positioning groove; and At least one O-ring. The O-ring is located between the inner tube and one of the ribs and can be elastically compressed to generate a bias, thereby pressing the rib against the corresponding positioning groove and lowering the inner tube. Rotation margin relative to this outer tube. The adjustable seat tube according to claim 1, wherein the outer surface of the inner tube is concavely provided with a plurality of grooves, and each of the ribs is correspondingly combined in one of the grooves and protrudes from the outer surface of the inner tube. , and the shape of the groove matches the shape of the rib, and the O-ring is located in the groove. The adjustable seat tube according to claim 2, wherein a groove is recessed on a side surface where the rib is combined with the inner tube, so that the O-ring can be embedded in the groove, and the The O-ring partially extends out of the groove. The adjustable seat tube as claimed in claim 1, wherein a groove is recessed on a side surface where the rib is combined with the inner tube so that the O-ring can be embedded in the groove, and the The O-ring partially extends beyond this groove. The adjustable seat tube according to claim 1, wherein the shape of the positioning groove matches the shape of the portion of the rib extending therein. The adjustable seat tube as described in any one of claims 1 to 5, wherein the outer tube is provided with three positioning grooves, and the three positioning grooves are arranged at equal angles and spaced apart, and the adjustable seat tube is provided with three positioning grooves. There are three ribs and one O-ring, the three ribs respectively correspond to the three positioning grooves, and the O-ring is located between one of the ribs and the inner tube. The adjustable seat tube as described in any one of claims 1 to 5, wherein the outer tube is provided with three positioning grooves, and the three positioning grooves are arranged at equal angles and spaced apart, and the adjustable seat tube is provided with three positioning grooves. There are three ribs and three O-rings, the three ribs respectively correspond to the three positioning grooves, and each of the O-rings is respectively located between one of the ribs and the inner tube. The adjustable seat tube as described in any one of claims 1 to 5, wherein the outer tube is provided with three positioning grooves, and the three positioning grooves are arranged at equal angles and spaced apart, and the adjustable seat tube is provided with three positioning grooves. The three ribs and the six O-rings respectively correspond to the three positioning grooves. Two of the O-rings are provided between each rib and the inner tube, and the two O-rings Set at intervals.

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