TWI822489B - Bicycle operating device - Google Patents

Abstract

A bicycle operating device includes a main body, a transimission unit, a brake handle, a fluid pressure generating assembly, a first operating assembly and a second operating assembly. The transimission unit is disposed on the main body and includes a coiling drum and a mandrel. The coiling drum is disposed on the mandrel. The brake handle is rotatably assembled with the main body. The fluid pressure generating assembly is disposed on the main body and includes a cylinder block, a piston assembly and an oil storage tank. The oil storage tank is located above the cylinder block.

Description

bicycle operating device

The invention relates to a bicycle operating device.

The bicycle transmission device is used to change the gear ratio to meet the needs of low-speed or high-speed riding. The transmission is performed by installing a transmission operating device on the bicycle handlebar. For example, the bicycle operating device for bent handlebars disclosed in Patent No. TWI391292 falls into this category. , which achieves the purpose of controlling shifting by swinging the brake handle in the forward direction of the transverse bicycle, so that the user is prone to accidentally shifting again when braking, or accidentally braking during the shifting process. In addition, this type of bicycle operating device for bent handlebars also has the obvious disadvantage that the braking force of pulling the brake cable by the brake handle is obviously insufficient, and the brake cannot be effectively performed, which has shortcomings that need to be improved urgently.

Therefore, it is necessary to provide a novel and progressive bicycle operating device to solve the above problems.

The main purpose of the present invention is to provide a bicycle operating device that not only has strong braking force, but also has a first shift lever and a second shift lever that can swing freely to avoid pressing the brake handle during the shift process.

In order to achieve the above object, the present invention provides a bicycle operating device, which is provided on a curved handlebar of a bicycle. The bicycle operating device further includes a body, a transmission unit, a brake handle, a fluid pressure generating component, and a first operating device. component and a second operating component. The body extends along a first direction, the body is provided with a first end and a second end in the first direction, and the second end is provided on the bent handlebar. The speed change unit is provided on the body and includes a reel and a spindle. The reel is provided on the spindle. The reel is for winding a speed change line. The axis direction of the spindle defines a first pivot axis. The reel The disk is returnably rotatable about the first pivot axis. The brake handle is pivoted on the body near the first end, and the brake handle swings around a second pivot axis, defining a first reference plane perpendicular to the second pivot axis and passing through the center of the reel. The fluid pressure generating component is located near the first end of the body and includes a cylinder, a piston assembly, and an oil reservoir. The cylinder and the oil reservoir are located relatively above the second pivot axis, and the oil reservoir is located Relatively above the cylinder, the brake handle drives the piston assembly to move along the cylinder to generate a control fluid pressure to drive a braking assembly to generate braking motion. The first operating component is pivotably mounted on the spindle to drive the reel to rotate to pull the transmission cable. The first operating component is provided with a first dial surface. The second operating component is returnably pivoted on the spindle to drive the reel to return and rotate to release the shifting cable. The second operating component is provided with a second dial surface. Wherein, in the normal state, the first finger dial surface and the second finger dial surface are both located on a side of the first reference plane away from the bicycle frame; wherein, when the first operating component is turned, the first finger dial surface faces the The first reference plane swings; wherein, when the second operating component is turned, the second finger dial swings toward the first reference plane; wherein, when the first finger dial swings toward the first reference plane, the second finger dial swings toward the first reference plane. The finger-shifting surface does not move simultaneously with the first finger-shifting surface; wherein, the second finger-shifting surface is located between the first pivot axis and the first finger-shifting surface.

The following examples are only used to illustrate the possible implementation modes of the present invention, but are not intended to limit the scope of protection of the present invention.

Please refer to Figures 1 to 7, which show a preferred embodiment of the present invention. The bicycle operating device of the present invention is provided on a curved handlebar of a bicycle. The bicycle operating device further includes a body 1, a transmission unit 2, a The brake handle 3 , a fluid pressure generating component 4 , a first operating component 5 and a second operating component 6 .

The body 1 extends along a first direction. The body 1 is provided with a first end 11 and a second end 12 in the first direction. The second end 12 is provided on the bent handlebar.

The transmission unit 2 is provided on the body 1 and includes a reel 21 and a spindle 22. The reel 21 is provided on the spindle 22. The reel 21 is used to wind a variable speed line. The axis direction of the spindle 22 defines a A first pivot axis L1 about which the reel 21 is rotatably rotatable. In this embodiment, the reel 21 is sleeved on the mandrel 22 in a synchronous manner.

The brake handle 3 is pivoted on the body 1 near the first end 11. The brake handle 3 swings around a second pivot axis L2, defining a first reference plane S perpendicular to the second pivot axis L2 and passing through The center of the reel 21.

The fluid pressure generating component 4 is located near the first end 11 of the body 1 and includes a cylinder 41, a piston assembly 42, and an oil reservoir 43. The cylinder 41 and the oil reservoir 43 are located on the second pivot axis. Relatively above the line L2, the oil reservoir 43 is located relatively above the cylinder 41, where the brake handle 3 drives the piston assembly 42 to move along the cylinder 41 to generate a control fluid pressure to drive a brake assembly to generate braking motion. In this way, since the braking component is driven by the controlled fluid pressure to perform braking, the present invention can have a stronger braking force than the conventional brake used for bending handlebars to improve driving safety.

The first operating component 5 is rotatably pivoted on the spindle 22 to drive the reel 21 to rotate to pull the transmission cable. The first operating component 5 is provided with a first dial surface 51 .

The second operating component 6 is returnably pivoted on the spindle 22 to drive the reel 21 to return and rotate to release the shifting cable. The second operating component 6 is provided with a second dial surface 61 . In this embodiment, the first operating component 5 is assembled at one end of the body 1 and is located between the brake handle 3 and the second operating component 6 .

Wherein, in the normal state, the first finger dial surface 51 and the second finger dial surface 61 are both located on the side of the first reference plane S away from the bicycle frame; wherein, when the first operating component 5 is turned, the first The finger dial surface 51 swings toward the first reference plane S; wherein, when the second operating component 6 is turned, the second finger dial surface 61 swings toward the first reference plane S; wherein, when the first finger dial surface 51 swings toward the first reference plane S, When the first reference plane S swings, the second fingering surface 61 does not move together with the first fingering surface 51; wherein, the second fingering surface 61 is located between the first pivot axis L1 and the first fingering surface 51 . Therefore, since the first finger dial surface 51 and the second finger dial surface 61 are both located on a side of the first reference plane S away from the bicycle frame, the user's index finger or middle finger can move the first finger dial surface 51 or the second finger dial surface 61 . The second finger dial surface 61 is pulled in the direction of the bicycle frame, which is simpler and more convenient to use, and the first finger dial surface 51 and the second finger dial surface 61 can swing freely respectively, so that mutual interference with the first finger dial can be avoided. The surface 51 interferes with the second dial surface 61 and affects the smoothness of shifting or shifting. In addition, the first thumb dial surface 51 and the second thumb dial surface 61 are located below the first pivot axis L1 to provide a more ergonomic grip.

Specifically, the first reference plane S passes through the cylinder 41 and the oil storage tank 43, and the cylinder 41 is provided with a cylinder axis 44. The piston assembly 42 moves in the direction of the cylinder axis 44, and the cylinder axis 44 extends through The reel 21 and the spindle 22 are such that the cylinder 41 and the oil storage tank 43 are relatively centered.

Furthermore, the piston assembly 42 is provided with a piston rod 45. One end of the piston rod 45 is slidably extended into the cylinder 41, and the other end is provided on the brake handle 3 and swings around a third pivot axis L3. Among them, the brake handle 3 is provided with a swing portion 31 at one end thereof that swings along the second pivot axis L2. One end of the swing portion 31 is disposed on the second pivot axis L2, and the other end is disposed on the third pivot axis L3. The first reference plane S passes through the third pivot axis L3. In this embodiment, the swing portion 31 moves together with the brake handle 3. When the brake handle 3 is pressed, the brake handle 3 drives the swing portion 31 to move the piston assembly 42 along the cylinder 41 to generate control fluid pressure.

In this embodiment, the cylinder 41 is provided with a first through hole 46 connected to the oil storage tank 43, and a second through hole 47 is provided on one side of the cylinder 41. The first through hole 46 is located on the second through hole 47. Between the through hole 47 and the piston rod 45, when the oil in the cylinder 41 decreases, the oil reservoir 43 can be replenished to the cylinder 41 through the first through hole 46.

1: Ontology 11:First end 12:Second end 2: Transmission unit 21:Cable reel 22: mandrel 3: Brake handle 31:Swing part 4: Fluid pressure generating component 41:Cylinder block 42:Piston assembly 43:Oil storage tank 44:Cylinder axis 45:piston rod 46: First through hole 47: Second through hole 5: First operating component 51: The first finger dials the surface 6: Second operating component 61: The second finger dials the surface L1: first pivot axis L2: Second pivot axis L3: Third pivot axis S: first reference plane

Figure 1 is a schematic diagram of a preferred embodiment of the present invention. Figure 2 is a perspective view of a preferred embodiment of the present invention. Figure 3 is a side cross-sectional view of a preferred embodiment of the present invention. Figure 4 is a partial enlarged view of Figure 3. Figure 5 is a side view of a preferred embodiment of the present invention. Figure 6 is a rear view of a preferred embodiment of the present invention. Figure 7 is a front view of a preferred embodiment of the present invention.

1: Ontology

11:First end

12:Second end

4: Fluid pressure generating component

3: Brake handle

5: First operating component

6: Second operating component

L2: Second pivot axis

L3: Third pivot axis

Claims (10)

A bicycle operating device for installing on a bicycle handlebar, including: a body extending along a first direction, the body being provided with a first end and a second end in the first direction, the third Two ends are provided on the bent handlebar; a speed change unit is provided on the body and includes a reel and a spindle. The reel is provided on the spindle. The reel is for winding a speed change line. The axis of the spindle The direction defines a first pivot axis, and the reel is reversibly rotated around the first pivot axis; a brake handle is pivoted on the body near the first end, and the brake handle is pivoted around a second pivot axis Swing defines a first reference plane perpendicular to the second pivot axis and passing through the center of the reel; a fluid pressure generating component is located near the first end of the body and includes a cylinder, a piston component, and a reservoir. The oil tank, the cylinder and the oil storage tank are located relatively above the second pivot axis, and the oil storage tank is located relatively above the cylinder, wherein the brake handle drives the piston assembly to move along the cylinder to generate a control fluid The pressure drives a braking component to generate braking motion; a first operating component is pivotably mounted on the spindle to drive the reel to rotate to pull the transmission line; the first operating component is provided with a first finger dial; Two operating components are returnably pivoted on the spindle to drive the reel to reset and rotate to release the variable speed cable. The second operating component is provided with a second dialing surface; wherein, in the normal state, the first dialing surface and the The second dial surfaces are located on the side of the first reference plane away from the bicycle frame; wherein, when the first operating component is turned, the first dial surface swings toward the first reference plane; wherein, when the first operating component is turned, When the second operating component is used, the second finger dial swings toward the first reference plane; wherein, when the first finger dial surface swings toward the first reference plane, the second finger dial surface does not move simultaneously with the first finger dial surface; Wherein, the second dialing surface is located between the first pivot axis and the first dialing surface. The bicycle operating device as claimed in claim 1, wherein the reel is sleeved on the spindle in a synchronous manner. The bicycle operating device as claimed in claim 1, wherein the first reference plane passes through the cylinder and the oil storage tank. The bicycle operating device as claimed in claim 1, wherein the cylinder is provided with a cylinder axis, the piston assembly moves along the direction of the cylinder axis, and the cylinder axis extends through the reel and the spindle. The bicycle operating device according to claim 1, wherein the piston assembly is provided with a piston rod, one end of which is slidably extended into the cylinder, and the other end is provided on the brake handle and revolves around a third pivot axis Swing. The bicycle operating device as claimed in claim 5, wherein one end of the brake handle swings along the second pivot axis is provided with a swing portion, one end of the swing portion is provided on the second pivot axis, and the other end is provided on the third a pivot axis through which the first reference plane passes. The bicycle operating device as claimed in claim 6, wherein the swinging part moves together with the brake handle. When the brake handle is pressed, the brake handle drives the swinging part to move the piston assembly along the cylinder to generate control fluid pressure. The bicycle operating device as claimed in claim 5, wherein the cylinder is provided with a first through hole connected to the oil storage tank, a second through hole is provided on one side of the cylinder, and the first through hole is provided on the third between the two through holes and the piston rod. The bicycle operating device as claimed in claim 1, wherein the first dial surface and the second dial surface are located below the first pivot axis. The bicycle operating device as claimed in claim 1, wherein the first operating component is assembled to one end of the body and is located between the brake handle and the second operating component.

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