Bicycle operating devices

Abstract

The present invention relates to a bicycle operating device, comprising a housing, a control unit, a speed change unit and a fluid pressure generating assembly. The housing is provided with a gripping portion, and the gripping portion is provided with a first end and a second end. The control unit is pivotally mounted on the housing. The speed change unit is arranged on the housing, and the speed change unit comprises a cable reel, an axis, and at least one operating rod. The fluid pressure generating assembly comprises a cylinder, a piston assembly and an oil storage tank. The present invention not only has a stronger braking force, but also can avoid pressing the brake handle during the speed change process.

Description

Technical Field

[0001] The invention relates to a bicycle operating device. Background Art

[0002] Bicycle speed change devices are used to change gear ratios to meet the needs of low-speed or high-speed riding. Speed ​​change is performed by installing a speed change operating device on the bicycle handlebars. For example, the bicycle operating device for curved handlebars disclosed in Taiwan Patent No. TWI391292 belongs to this category. The purpose of controlling speed change is achieved by swinging the brake handle in the direction of the bicycle's forward movement. In this way, the user is prone to accidentally changing speed while braking, or accidentally braking during the speed change process. In addition, this type of bicycle operating device for curved handlebars has another disadvantage that the braking force of the brake cable pulled by the brake handle is obviously insufficient, and the brake cannot be effectively applied, which has a disadvantage that needs to be improved urgently.

[0003] Therefore, it is necessary to provide a novel and progressive bicycle operating device to solve the above problems. Summary of the invention

[0004] The main purpose of the present invention is to provide a bicycle operating device which not only has a strong braking force but also can avoid pressing the brake handle during the speed change process.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A bicycle operating device is provided on a handlebar of a bicycle, comprising:

[0007] A shell extending along a first direction, the shell is provided with a gripping portion, the gripping portion is provided with a first end portion and a second end portion, and an attachment portion is provided on the first end portion of the gripping portion;

[0008] A control unit is pivotally mounted on the housing near the first end and is rotatable relative to the housing;

[0009] A speed change unit is disposed in the housing, the speed change unit comprises a winding drum, an axis, and at least one operating rod, the winding drum can rotate around a rotation axis;

[0010] A fluid pressure generating assembly, comprising a cylinder, a piston assembly and an oil storage tank, wherein the control unit drives the piston assembly to move relative to the cylinder to generate a control fluid pressure, the cylinder is disposed on the housing and close to the first end, the oil storage tank is located relatively above the cylinder, and the piston assembly moves along a cylindrical axis of the cylinder;

[0011] Wherein, the cylindrical axis and the rotation axis form a first angle less than 20 degrees.

[0012] A bicycle operating device is provided on a handlebar of a bicycle, comprising:

[0013] A shell extending along a first direction, the shell is provided with a gripping portion, the gripping portion is provided with a first end portion and a second end portion, and an attachment portion is provided on the first end portion of the gripping portion;

[0014] A control unit is pivotally mounted on the housing near the first end and is rotatable relative to the housing;

[0015] A speed change unit is disposed in the housing, the speed change unit comprises a winding drum, an axis, and at least one operating rod, the winding drum can rotate around a rotation axis;

[0016] A fluid pressure generating assembly, comprising a cylinder, a piston assembly and an oil storage tank, wherein the control unit drives the piston assembly to move relative to the cylinder to generate a control fluid pressure, the cylinder is disposed on the housing and close to the first end, the oil storage tank is located relatively above the cylinder, and the piston assembly moves along a cylindrical axis of the cylinder;

[0017] Wherein, the cylindrical axis and the rotation axis form a first angle;

[0018] A slope is formed at the upper portion of the gripping portion facing the second end portion, and the slope forms a second angle of 120 degrees to 160 degrees with the axis of the cylinder.

[0019] A bicycle operating device is provided on a handlebar of a bicycle, comprising:

[0020] A shell extending along a first direction, the shell is provided with a gripping portion, the gripping portion is provided with a first end portion and a second end portion, and an attachment portion is provided on the first end portion of the gripping portion;

[0021] A control unit is pivotally mounted on the housing near the first end and is rotatable relative to the housing;

[0022] A speed change unit is disposed in the housing, the speed change unit comprises a winding drum, an axis, and at least one operating rod, the winding drum can rotate around a rotation axis;

[0023] A fluid pressure generating assembly, comprising a cylinder, a piston assembly and an oil storage tank, wherein the control unit drives the piston assembly to move relative to the cylinder to generate a control fluid pressure, the cylinder is disposed on the housing and close to the first end, the oil storage tank is located relatively above the cylinder, and the piston assembly moves along a cylindrical axis of the cylinder;

[0024] Wherein, the cylindrical axis and the rotation axis form a first angle less than 20 degrees;

[0025] A slope is formed at the upper portion of the gripping portion facing the second end portion, and the slope forms a second angle of 120 degrees to 160 degrees with the axis of the cylinder.

[0026] In one embodiment, the cylinder body is provided with an outlet port, the outlet port being adjacent to the cylinder body and close to one end of the first end portion.

[0027] In one embodiment, the outlet port is connected to a fluid outlet port, and the fluid outlet port is connected to a hydraulic oil pipe assembly.

[0028] In one embodiment, the control unit includes a pressing section and a working section. The working section is provided with a first pivot and a second pivot. The first pivot is pivotally connected to the housing, and the second pivot is pivotally connected to the piston assembly.

[0029] In one embodiment, the first pivot portion is located between the pressing section and the second pivot portion.

[0030] In one embodiment, the piston assembly extends into the cylinder toward the first end, and when the pressing section is pressed, the pressing section pushes the piston assembly into the cylinder.

[0031] In one embodiment, the fluid pressure generating assembly is located relatively above the rotation axis.

[0032] In one embodiment, the shifting unit includes two operating levers, each of which is provided with a first shift surface and a second shift surface, defining a first reference plane perpendicular to a control axis when the control unit rotates and passing through the center point of the cable reel. In normal state, the first shift surface and the second shift surface are both located on the side of the first reference plane away from the bicycle.

[0033] The advantages of the present invention are:

[0034] The bicycle operating device provided by the present invention not only has a strong braking force, but also can avoid pressing the brake handle during the speed change process. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a three-dimensional diagram of a preferred embodiment of the present invention.

[0036] Figure 2 It is a schematic diagram of a preferred embodiment of the present invention.

[0037] Figure 3 for Figure 2 Side cross-sectional view of .

[0038] Figure 4 for Figure 3 A partial enlarged view of .

[0039] Figure 5It is a side view of a preferred embodiment of the present invention.

[0040] Figure 6 for Figure 2 Side view of.

[0041] Figure 7 Another side view of a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0042] The following examples are merely used to illustrate possible implementations of the present invention, but are not intended to limit the scope of the present invention, so it is necessary to explain them first.

[0043] Please refer to Figures 1 to 7 , which shows a preferred embodiment of the present invention. The bicycle operating device of the present invention is provided on a handlebar of a bicycle, and includes a housing 1, a control unit 2, a speed change unit 3 and a fluid pressure generating component 4.

[0044] The housing 1 extends along a first direction. The housing 1 is provided with a gripping portion 11 . The gripping portion 11 is provided with a first end portion 111 and a second end portion 112 . An attachment portion 12 is provided on the first end portion 111 of the gripping portion 11 .

[0045] The control unit 2 is pivotally mounted on the housing 1 close to the first end 111 and can rotate relative to the housing 1 .

[0046] The speed change unit 3 is disposed in the housing 1 . The speed change unit 3 includes a cable reel 31 , an axis 32 , and at least one operating rod 33 . The cable reel 31 can rotate around a rotation axis L1 .

[0047] The fluid pressure generating assembly 4 includes a cylinder 41, a piston assembly 42 and an oil storage tank 43. The control unit 2 drives the piston assembly 42 to move relative to the cylinder 41 to generate a control fluid pressure. The cylinder 41 is disposed on the housing 1 and close to the first end 111. The oil storage tank 43 is located relatively above the cylinder 41. The piston assembly 42 moves along a cylindrical axis L2 of the cylinder 41. The control unit 2 drives the piston assembly 42 to move along the cylindrical axis L2 to generate a control fluid pressure to drive the brake assembly of the bicycle to generate a braking movement. In this way, since the brake assembly is driven by the control fluid pressure to brake, the present invention can have a stronger braking force than the conventional brake for the handlebar to improve driving safety.

[0048] The cylindrical axis L2 and the rotation axis L1 form a first angle A1. Specifically, the cylindrical axis L2 and the rotation axis L1 form the first angle A1 less than 20 degrees, and in this embodiment, the first angle A1 is 15 degrees. The cylindrical axis L2 and the rotation axis L1 form the first angle A1 so that the cylinder body 41 is not located in the same horizontal plane as the shaft 32 and the cable reel 31, thereby shortening the length of the housing 1.

[0049] Among them, a slope 13 is formed at the upper part of the gripping portion 11 facing the second end portion 112, and the slope 13 forms a second angle A2 of 120 degrees to 160 degrees with the cylindrical axis L2. In this embodiment, the second angle A2 is 140 degrees. The second angle A2 formed by the slope 13 and the cylindrical axis L2 can make the slope 13 more suitable for users to hold and conform to ergonomics.

[0050] The cylinder body 41 is provided with an outlet port 44, which is adjacent to the cylinder body 41 and close to one end of the first end portion 111. The outlet port 44 is connected to a fluid outlet port 45, and the fluid outlet port 45 is connected to a hydraulic oil pipe assembly 46. When the control unit 2 drives the piston assembly 42 to move, the piston assembly 42 delivers the working fluid to the hydraulic oil pipe assembly 46 through the outlet port 44 to perform braking.

[0051] The control unit 2 includes a pressing section 21 and a working section 22. The working section 22 is provided with a first pivot 23 and a second pivot 24. The first pivot 23 is pivotally connected to the housing 1, and the second pivot 24 is pivotally connected to the piston assembly 42. When the pressing section 21 is pressed, the pressing section 21 drives the working section 22 to swing, so that the second pivot 24 drives the piston assembly 42 to move. The first pivot 23 is located between the pressing section 21 and the second pivot 24, so that the control unit 2 drives the second pivot 24 to swing with the first pivot 23 as the pivot axis.

[0052] The piston assembly 42 extends into the cylinder 41 toward the first end 111 . When the pressing section 21 is pressed, the pressing section 21 pushes the piston assembly 42 into the cylinder 41 to push the fluid in the cylinder 41 .

[0053] In this embodiment, the fluid pressure generating assembly 4 is located relatively above the rotation axis L1 to avoid interfering with the speed change unit 3. Preferably, the speed change unit 3 includes two operating levers 33, and the two operating levers 33 control the rotation direction of the cable reel 31 to be opposite, so as to respectively control the cable reel 31 to rotate in the forward gear or the reverse gear. Figure 7As shown, the two operating rods 33 are respectively provided with a first finger-shifting surface 331 and a second finger-shifting surface 332, defining a first reference plane L3 which is perpendicular to a control axis L4 when the control unit 2 rotates and passes through the center point of the cable reel 31. In a normal state, the first finger-shifting surface 331 and the second finger-shifting surface 332 are both located on the side of the first reference plane L1 away from the bicycle. Thus, since the first finger-shifting surface 331 and the second finger-shifting surface 332 are both located on the side of the first reference plane A3 away from the bicycle, the index finger or the middle finger of the user can move the first finger-shifting surface 331 and the second finger-shifting surface 332 toward the direction of the bicycle, which is simpler and more convenient to use. Moreover, the first finger-shifting surface 331 and the second finger-shifting surface 332 can swing freely, respectively, so that the first finger-shifting surface 331 and the second finger-shifting surface 332 can avoid interference with each other and affect the smoothness of shifting in or out of gear.

[0054] The above are preferred embodiments of the present invention and the technical principles used therein. For those skilled in the art, any obvious changes such as equivalent transformations, simple replacements, etc. based on the technical solution of the present invention, without departing from the spirit and scope of the present invention, are within the scope of protection of the present invention.

Claims

1. A bicycle operating device, characterized in that: A curved handlebar for a bicycle, comprising: A shell extending along a first direction, the shell is provided with a gripping portion, the gripping portion is provided with a first end portion and a second end portion, and an attachment portion is provided on the first end portion of the gripping portion; A control unit is pivotally mounted on the housing near the first end and is rotatable relative to the housing; A speed change unit is disposed in the housing, the speed change unit comprises a winding drum, an axis, and at least one operating rod, the winding drum can rotate around a rotation axis; A fluid pressure generating assembly, comprising a cylinder, a piston assembly and an oil storage tank, wherein the control unit drives the piston assembly to move relative to the cylinder to generate a control fluid pressure, the cylinder is disposed on the housing and close to the first end, the oil storage tank is located relatively above the cylinder, and the piston assembly moves along a cylindrical axis of the cylinder; Wherein, the cylindrical axis and the rotation axis form a first angle less than 20 degrees.

2. The bicycle operating device according to claim 1, wherein: An inclined surface is formed at the upper portion of the gripping portion toward the second end portion, and the inclined surface forms a second angle of 120 degrees to 160 degrees with the axis of the cylinder.

3. The bicycle operating device according to claim 1, wherein: The cylinder body is provided with an outlet port, and the outlet port is adjacent to the cylinder body and close to one end of the first end portion.

4. The bicycle operating device according to claim 3, wherein: The outlet port is connected to a fluid outlet port, and the fluid outlet port is connected to a hydraulic oil pipe assembly.

5. The bicycle operating device according to claim 1, wherein: The control unit includes a pressing section and a working section. The working section is provided with a first pivot and a second pivot. The first pivot is pivotally connected to the housing, and the second pivot is pivotally connected to the piston assembly.

6. The bicycle operating device according to claim 5, wherein: The first pivot portion is located between the pressing section and the second pivot portion.

7. The bicycle operating device according to claim 5, wherein: The piston assembly extends into the cylinder toward the first end, and when the pressing section is pressed, the pressing section pushes the piston assembly toward the cylinder.

8. The bicycle operating device according to claim 1, wherein: The fluid pressure generating assembly is located relatively above the rotation axis.

9. The bicycle operating device according to claim 1, wherein: The speed change unit includes two operating levers, each of which is provided with a first shifting surface and a second shifting surface, defining a first reference plane perpendicular to a control axis when the control unit rotates and passing through the center point of the cable reel. In normal state, the first shifting surface and the second shifting surface are both located on the side of the first reference plane away from the bicycle.

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