TWI832586B - Seat adjusting structure of bicycle - Google Patents

Abstract

A seat adjusting structure of bicycle includes a main body, a seat assembly, a plug assembly, and a driving device. The main body has a seat tube with a hole. The seat assembly has a seat and a seat post, one end of the seat post is connected to the seat, the other end of the seat post inserts into the hole of the seat tube, and the seat post has a plurality of locating holes. The plug assembly is arranged in the seat tube and is corresponded to the locating holes. The plug assembly has a plug which can move between a first position and a second position. When the plug moves to the first position, one ends of the plug passes through the hole of the seat tube and inserts one of the locating holes of the seat post, in order to fix the seat post to the seat tube. When the plug moves to the second position, the plug leaves the locating holes, in order to make the seat post moves relative to the seat tube. The driving device is arranged in the main body, with one end connected to the plug. The driving device can be operated by a user to drive the plug to move.

Description

Bicycle seat cushion lifting adjustment structure

The present invention relates to bicycles, and in particular, to a bicycle seat cushion lifting and lowering adjustment structure that can conveniently adjust the seat cushion height through a latch.

Press, the seat height of a bicycle is one of the important factors that affects the bicycle riding experience. If the height of the seat cushion is too low, it is easy for the rider to pedal harder because his feet cannot exert full force when riding. Maintaining a pedaling posture that is too low for a long time will also affect the legs or knees, causing chronic pain. On the other hand, if the height of the seat cushion is too high, the rider often needs to stand on tiptoes or get off the seat cushion to reach the ground when parking. However, when starting to move, the rider needs to readjust his posture to sit on the seat cushion. During this process, it is easy to cause the center of gravity to be too high and lose the sense of balance, which can lead to a crash, which is quite dangerous. Therefore, recent bicycles are often equipped with height-adjustable seat structures, allowing the rider to adjust the seat height according to his or her needs.

The conventional bicycle seat cushion adjustment structure usually uses a seat tube inserted into a stand tube. The upper end opening of the stand tube is usually provided with a quick-release component. Through the fitting of the seat tube and the stand tube, the seat tube can be placed in the seat tube. The riser rises and falls. When the rider wants to adjust the height of the seat cushion, he needs to first unfasten the quick-release assembly to make the seat tube movable, and then manually adjust the seat cushion upward or downward to a predetermined height. , and then lock the quick-release assembly to fix the seat tube to the riser tube.

However, the problem with the above-mentioned bicycle seat cushion structure is that when the rider needs to adjust the seat cushion, he needs to stop the bike before manually adjusting it. If he needs to temporarily adjust the seat cushion while riding, he needs to find a safe place. You can stop and adjust the bike only at the stopping place. However, sometimes you encounter places where you cannot make a temporary stop, such as busy intersections, or steep downhills, etc., so it is not possible to immediately solve the seat height problem while riding, which is relatively inconvenient. Therefore, how to provide a seat cushion lifting and adjusting structure that can be used at any time is one of the issues that industry players and researchers in related fields urgently need to solve.

The main purpose of the present invention is to provide a bicycle seat cushion lifting adjustment structure, which can conveniently adjust the seat cushion height at any time without stopping, providing a more convenient and comfortable riding experience.

In order to achieve the above-mentioned object of the invention, the present invention provides a bicycle seat cushion lifting and adjusting structure, which includes: a vehicle body with a standpipe; the standpipe has a perforation; a seat cushion member with a seat cushion; A seat tube; one end of the seat tube is connected to the seat cushion, and the other end is inserted into the stand tube; the seat tube is provided with a plurality of positioning holes; a latch member is provided on the stand tube and corresponds to the through hole; the latch member There is a latch that can move between a first position and a second position; when the latch moves to the first position, one end of the latch passes through the perforation of the riser and extends into the positioning of the seat tube. One of the holes fixes the seat tube to the seat tube; when the latch moves to the second position, the latch leaves the positioning holes so that the seat tube can move relative to the seat tube; and a driving device , located on the vehicle body, with one end connected to the latch for operation to drive the latch to move.

In one embodiment, the latch member further has a body disposed on the standpipe; the base body has an internal movable space connected to the through hole, and the latch is disposed in the movable space.

In one embodiment, the movable space of the base body has a stopper; the latch has a shoulder; when the latch moves to the first position, the shoulder of the latch abuts against the base the stop.

In one embodiment, the latch member further includes a first elastic member disposed in the movable space of the base body, with one end acting on the latch member to impart a first elastic force to the latch member. A tendency is generated to move from the second position to the first position.

In one embodiment, the latch member further includes an adjusting member provided on the base; one end of the first elastic member is against the adjusting member; the adjusting member is operable to move relative to the first elastic member , thereby adjusting the first elastic force of the first elastic member.

In one embodiment, the adjusting member has an external thread, and the inner wall of the movable space of the base is provided with an internal thread. One end of the adjusting member is screwed into the movable space so that the external thread engages the internal thread.

In one embodiment, the driving device has a rope body and an operating part. Two ends of the rope body are respectively connected to the latch and the operating part. The operating part is provided on the vehicle body for operation and moves through the rope body. The latch.

In one embodiment, the latch has a first accommodating groove and a second accommodating groove in the axial direction, and the inner diameter of the first accommodating groove is larger than the inner diameter of the second accommodating groove; one end of the rope body has a The outer diameter of the bump corresponds to the inner diameter of the first groove; when the rope body is connected to the latch member, the rope body extends into the second groove, and the bump enters along the first groove. The latch member abuts against the bottom surface of the first receiving groove.

In one embodiment, the operating member has a base and a lever; the base is provided on a handlebar of the vehicle body; the lever is pivoted on the base and connected to the rope body; pulling the lever can The latch is moved through the rope body.

In one embodiment, a lifting device is further included, which is provided in the standpipe and used to drive the seat cushion member to move.

The bicycle seat cushion lifting adjustment structure provided by the invention uses the driving device to drive the latch member to move between the first position and the second position, so that the seat tube can be fixed to the stand tube or relative to the stand tube. Movement allows the user to adjust the height of the seat cushion freely without stopping at any time. Compared with the inconvenient seat cushion adjustment methods used in conventional bicycles, the present invention can provide a more convenient and comfortable seat cushion adjustment experience, and can also increase the general public's willingness to ride bicycles.

In the following, according to the purpose, function and structural configuration disclosed by the present invention, preferred embodiments are cited and described in detail with reference to the drawings.

10:Car body

11:Riser

110:Perforation

12: Handlebar

20: Seat cushion parts

21: Seat cushion

22:Seat tube

220: Positioning hole

30:Latch parts

31: base body

310: Activity space

311: First paragraph

312:Second paragraph

313: Stopper

314: Internal thread

32:Latch

320:shoulder

321: Insertion part

322: First slot

323: Second slot

324:Third slot

33:First elastic member

34:Adjustment parts

340:Head

341:Body

342:First rope groove

343: External thread

344:Second rope groove

40:Driving device

41: Operating parts

410:Pedestal

411:Leverage

42: Rope body

420: Rope body

421: noose

422: Bump

50:Lifting device

51: Second elastic member

Figure 1 is a schematic view of the appearance of a preferred embodiment of the present invention installed on a bicycle.

Figure 2 is a perspective view of a seat cushion lifting adjustment structure according to a preferred embodiment of the present invention.

Figure 3 is an exploded view of the seat cushion lifting adjustment structure according to a preferred embodiment of the present invention.

Figure 4 is a cross-sectional view of a seat cushion lifting adjustment structure according to a preferred embodiment of the present invention.

Figure 5 is a schematic cross-sectional view of a preferred embodiment of the present invention, showing the situation when the latch moves to the second position.

Figure 6 is a partial enlarged view of the latch that continues Figure 5.

Figure 7 is a schematic cross-sectional view of a preferred embodiment of the present invention, showing the latch moving to the first position.

Figure 8 is a partial enlarged view of the latch that continues Figure 7.

Referring to Figures 1 to 4, a bicycle seat cushion lifting adjustment structure provided by a preferred embodiment of the present invention mainly includes: a bicycle body 10, a seat cushion member 20, and a latch member 30 , a driving device 40 and a lifting device 50. The vehicle body 10 has a standpipe 11 . The standpipe 11 is a hollow tube fixed on the vehicle body 10 , and has a through hole 110 in the axial direction. Other components on the vehicle body 10 are conventional bicycle structures, and their details will not be described in detail here.

The seat cushion member 20 has a seat cushion 21 and a seat tube 22 . One end of the seat tube 22 is connected to the hollow tube body of the seat cushion 21 , and the other end is inserted into the through hole 110 of the stand tube 11 , so that at least part of the seat tube 22 is accommodated in the stand tube 11 . The seat tube 22 has a plurality of positioning holes 220 . In this embodiment, the positioning holes 220 are arranged along an axial direction of the seat tube 22; in another embodiment, the arrangement direction of the positioning holes can be changed as needed. In addition, in this embodiment, the seat cushion 21 is vertically connected to the seat tube 22; in another embodiment, the seat cushion can be tilted forward or backward relative to the seat tube as needed.

Please refer to FIGS. 3 to 8 . The latch member 30 has a base 31 , a latch 32 , a first elastic member 33 and an adjustment member 34 . The base 31 is a long hollow block connected to one end of the standpipe 11 and extending in a direction away from the standpipe 11 . The seat body 31 has an axial inner portion with an active space 310 connected to the through hole 110 of the standpipe 11 for accommodating the latch 32 . The activity space 310 has a first section 311 and a second section 312. The first section 311 is farther from the through hole 110 than the second section 312, and the inner diameter of the first section 311 is larger than that of the second section 312. diameter, wherein a stopper 313 is formed between the first section 311 and the second section 312, perpendicular to the inner wall surface of the first section 311 and the inner wall surface of the second section 312 respectively, and the base body 31 An internal thread 314 is further provided on the inner wall of the first section 311. In this embodiment, the base body 31 is integrally formed on the standpipe 11 and is vertically connected to the standpipe 11; in another embodiment, the base body 31 is integrally formed on the standpipe 11. It can be an independent component installed on the riser, and its extension direction can also be inclined to the riser or curved relative to the riser.

The latch 32 is a hollow pipe located in the movable space 310 of the base 31 . The latch 32 has a connected shoulder portion 320 and an insertion portion 321 . The inner diameter of the shoulder portion 320 is larger than the inner diameter of the insertion portion 321 . Specifically, the outer diameter of the shoulder 320 corresponds to the inner diameter of the first section 311 of the movable space 310, the outer diameter of the insertion portion 321 corresponds to the inner diameter of the second section 312 of the movable space 310, and The shoulder 320 corresponds to the stop 313 . The latch 32 has a first receiving groove 322 , a second receiving groove 323 and a third receiving groove 324 axially inside. The first receiving groove 322 and the second receiving groove 323 pass through the insertion part 321, and the third receiving groove 324 passes through the shoulder 320, wherein the second receiving groove 323 is located between the first receiving groove 322 and the The third accommodating groove 324 is connected to the first accommodating groove 322 and the third accommodating groove 324 respectively, and the inner diameters of the first accommodating groove 322 and the third accommodating groove 324 are both larger than the second accommodating groove 323 the inner diameter. The latch 32 can be driven to move between a first position (as shown in Figure 8) and a second position (as shown in Figure 6). The first position is closer to the second position than the second position. The perforation 110. When the latch 32 moves to the first position, the shoulder 320 of the latch 32 abuts the blocking portion 313 of the base 31 , and the insertion portion 321 passes through the through hole 110 of the standpipe 11 and extends Enter one of the positioning holes 220 of the seat tube 22 so that the seat tube 22 and the seat tube 11 form a fixed state and cannot move relative to each other; when the latch 32 moves to the second position, the latch 32 The insertion portion 321 leaves the positioning holes 220 to release the fixed state of the seat tube 22 and the seat tube 11 , so that the seat tube 22 can move relative to the seat tube 11 .

The first elastic member 33 is disposed in the movable space 310 of the base 31 and has one end acting on the latch 32 . Specifically, the outer diameter of the first elastic member 33 corresponds to the inner diameter of the third receiving groove 324 of the plug 32, so that one end of the first elastic member 33 is received in the third receiving groove 324 and resists it. Lean against the bottom surface of the third receiving groove 324 . The first elastic member 33 is used to apply a first elastic force to the latch 32, so that the latch 32 generates a force. The tendency of the second position to move in the direction of the first position. In this embodiment, the first elastic member 33 is a coil spring; in another embodiment, the first elastic member may be a spring piece or other equivalent device that can provide elastic force.

The adjusting member 34 is a hollow screw component having a head 340 and a body 341 . The outer diameter of the head 340 is larger than the outer diameter of the body 341, and a first rope groove 342 is provided axially inside the head 340. The body 341 has an external thread 343 on its periphery corresponding to the internal thread 314 of the seat 31 , and a second rope groove 344 is provided in the axial direction of the body 341 and is connected to the first rope groove 342 . The adjusting member 34 is engaged with the internal thread 314 of the base body 31 through the external thread 343, so that the body 341 of the adjusting member 34 can extend into the activity space 310 of the base body 31 and abut against the One end of the first elastic member 33 is opposite to the latch 32; and since the outer diameter of the head 340 is larger than the inner diameter of the movable space 310 of the base 31, when the body 341 is fully extended into the movable space 310 At this time, the head 340 will abut one end of the base 31 and cannot continue to enter. The adjusting member 34 can be operated by a user to move relative to the base 31 to change the depth of the adjusting member 34 extending into the base 31 and thereby adjust the first elastic force of the first elastic member 33 .

The driving device 40 is installed on the vehicle body 10 and has one end connected to the latch 32 for driving the latch 32 to move. Specifically, in this embodiment, the driving device 40 has an operating member 41 and a rope body 42 . The operating member 41 is a handle member movably provided on the vehicle body 10 and has a base 410 and a lever 411; the base 410 is provided on the handlebar 12 of the vehicle body 10, and the lever 411 pivots It is provided on the base 410 and connected to the rope body 42; thereby pulling the lever 411 can move the latch 32 through the rope body 42. The rope body 42 includes a rope body 420 , a rope sleeve 421 and a protrusion 422 . The rope body 420 passes through the first rope groove 342 of the adjustment member 34 , the second rope groove 344 , the first elastic member 33 , the activity space 310 of the base 31 , and the latch 32 in sequence. The third receiving groove 324 and the second receiving groove 323. The rope cover 421 is wrapped around the periphery of the rope body 420 , and one end of the rope cover 421 is against the bottom surface of the first rope groove 342 of the adjusting member 34 . The protrusion 422 is located at one end of the rope body 420 , and its outer diameter corresponds to the first receiving groove 322 of the latch 32 . When the rope body 42 extends into the latch 32 , the protrusion 422 can enter the latch 32 along the first groove 322 and abut against the bottom surface of the first groove 322 . Therefore, when the rope body 42 is pulled, the protrusion 422 can act on the bottom surface of the first receiving groove 322 to drive the latch 32 to move from the first position toward the second position. In this embodiment, the driving device 40 drives the latch 32 to move through wire control; in another embodiment, the driving device can also use oil pressure, air pressure, electricity, magnetism, elasticity, mechanical braking or other methods. Equivalent power device to drive the latch to move. In addition, in this embodiment, the operating member 41 is a handle; in another embodiment, the operating member can be replaced with a roller, a button or other equivalent force-applying element if necessary.

The lifting device 50 is movably connected between the seat tube 22 and the stand tube 11 for driving the seat cushion member 20 to move relative to the stand tube 11 . Specifically, in this embodiment, the lifting device 50 has a second elastic member 51 disposed in the through hole 110 of the stand pipe 11 , with both ends respectively abutting the stand pipe 11 and the seat tube 22 . The second elastic member 51 applies a second elastic force to the seat tube 22 so that the seat tube 22 tends to move away from the seat tube 11 . In this embodiment, the lifting device 50 moves the seat tube 22 through elastic force; in another embodiment, the lifting device can also move through oil pressure, air pressure, electricity, magnetism, elasticity, mechanical braking or other equivalent means. A power device is used to drive the seat tube to move relative to the seat tube. On the other hand, in this embodiment, the lifting device 50 only drives the seat tube 22 to move in a direction away from the stand tube 11; in another embodiment, the lifting device can also drive the seat tube 22 to move closer to the stand tube 11. The seat tube moves in the direction of the seat tube, or drives the seat tube to move in a direction approaching or away from the stand tube.

According to the above structural configuration, the actual operation and application of the bicycle seat cushion lifting adjustment structure of the present invention is as follows: Please refer to Figures 5 and 6. When the user wants to raise the height of the seat cushion 21 while riding, he only needs to pull the lever 411 of the operating member 41 to pull the rope body 42. The latch 32 is further driven to move from the first position toward the second position through the bump 422 . When the latch 32 moves to the second position, the latch 32 leaves one of the positioning holes 220 where it was originally fixed. Therefore, the seat tube 22 and the seat tube 11 are released from the fixed state, so that the seat tube 22 can be relative to the seat tube. 11Mobile. Then, when the user stands up and slightly leaves the seat cushion 21, the second elastic member 51 will apply the second elastic force to the seat tube 22, causing the seat tube 22 to move in a direction away from the seat tube 11 (that is, toward the seat tube 11). rise), and simultaneously drive the seat cushion 21 to rise.

Next, please refer to Figures 7 and 8. When the seat tube 22 rises to a predetermined height that the user is satisfied with, the user can release the lever 411 of the operating member 41 to stop the operation. The latch 32 continues to exert force. At this time, under the action of the first elastic force of the first elastic member 33, the latch 32 moves from the second position to the first position, and re-extends into the positioning hole 220 corresponding to the predetermined height. The seat tube 22 and the stand tube 11 are restored to a fixed state. Thereby, the seat cushion 21 can be raised to a height satisfactory to the user during riding, providing a more comfortable riding experience.

The drawings of this embodiment only reveal a schematic manner of raising the height of the seat cushion 21 , and the present invention lowers the seat cushion 21 in a manner similar to the above-mentioned manner. However, when the seat tube 22 and the seat tube 11 After the fixed state is released, the user does not leave the seat cushion 21, but relies on his own weight to exert a downward force on the seat cushion 21, thereby lowering the height of the seat tube 22 and simultaneously driving the height of the seat cushion 21 together. decline. In this way, the present invention can be applied to both situations of the seat cushion height rising and the seat cushion height descending.

In summary, the bicycle seat cushion lifting adjustment structure provided by the present invention uses the driving device 40 to drive the latch 32 to move between the first position and the second position, so that the seat tube 22 can be fixed to the The riser 11 may move relative to the riser 11, allowing the user to adjust the height of the seat cushion freely without stopping at any time. Compared with the inconvenient seat cushion adjustment method used in conventional bicycles, this invention It can obviously provide a more convenient and comfortable seat cushion adjustment experience, and can also increase the general public's willingness to ride bicycles.

The above embodiments are only illustrative of the technology and its effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can make modifications and changes to the above embodiments without violating the technical principles and spirit of the invention. Therefore, the scope of protection of the rights of the invention should be as described below in the patent application scope.

11:Riser

110:Perforation

20: Seat cushion parts

21: Seat cushion

22:Seat post

220: Positioning hole

30:Latch parts

31: base body

32:Latch

33:First elastic member

34:Adjustment parts

42: Rope body

50:Lifting device

51: Second elastic member

Claims (7)

A bicycle seat cushion lifting and adjusting structure includes: a vehicle body having a standpipe; the standpipe has a perforation; a seat cushion member having a seat cushion and a seat tube; one end of the seat tube is connected to the seat cushion , the other end is inserted into the standpipe; the seat tube is provided with a plurality of positioning holes; a latch member is provided on the standpipe and corresponds to the through hole; the latch member has a latch that can connect with a first position move between the second positions; when the latch moves to the first position, one end of the latch passes through the through hole of the seat tube and extends into one of the positioning holes of the seat tube, so that the seat tube is fixed on the seat tube; when the latch moves to the second position, the latch leaves the positioning holes so that the seat tube can move relative to the seat tube; and a driving device is provided on the vehicle body and one end is connected to the latch , for operation to drive the latch to move; wherein, the latch member further has a body, which is disposed on the riser; the base body has an internal movable space connected to the through hole, and the latch is disposed in the movable space; wherein the latch The component further includes a first elastic component, which is disposed in the activity space of the base body. One end acts on the latch component to impart a first elastic force to the latch component, causing the latch component to move from the second position to the second position. The tendency to move in the direction of the first position; wherein, the latch member further includes an adjustment member, which is provided on the base; one end of the first elastic member is against the adjustment member; the adjustment member is operable relative to the The first elastic member moves to adjust the first elastic force of the first elastic member. The bicycle seat cushion raising and lowering adjustment structure as described in claim 1, wherein the activity space of the seat body has a stopper; the latch has a shoulder; when the latch moves to the first position, the latch The shoulder abuts the blocking portion of the base. The bicycle seat cushion raising and lowering adjustment structure as described in claim 1, wherein the adjusting member has an external thread, the inner wall of the movable space of the seat is provided with an internal thread, and one end of the adjusting member is screwed into the movable space The external thread engages the internal thread. The bicycle seat cushion raising and lowering adjustment structure as described in claim 1, wherein the driving device has a rope body and an operating part, and the two ends of the rope body are respectively connected to the latch and the operating part; the operating part is provided on the bicycle body for operation to move the latch through the rope body. The bicycle seat cushion raising and lowering adjustment structure as described in claim 4, wherein the latch has a first receiving groove and a second receiving groove in the axial direction, and the inner diameter of the first receiving groove is larger than the inner diameter of the second receiving groove. The inner diameter; one end of the rope body has a bump, the outer diameter of which corresponds to the inner diameter of the first groove; when the rope body is connected to the plug member, the rope body extends into the second groove, and The protrusion enters the plug member along the first groove and abuts against the bottom surface of the first groove. The bicycle seat cushion raising and lowering adjustment structure as described in claim 4, wherein the operating member has a base and a lever; the base is provided on a handlebar of the vehicle body, the lever is pivoted on the base, and Connect the rope body; pulling the lever can move the latch through the rope body. The bicycle seat cushion lifting and adjusting structure as described in claim 1 further includes a lifting device located in the riser for driving the seat cushion member to move.

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