Control device for a bicycle

Abstract

The present invention relates to a control device for a bicycle. A control device mountable to a handlebar of a bicycle comprises a housing having a recess, a lever coupled to the housing and pivotable relative to the housing, a master cylinder portion supported by the housing, and a battery unit located in the recess, below the master cylinder portion, wherein the battery unit is a self-contained unit having a first battery cover at a first side of the battery unit and a second battery cover at a second side of the battery unit, the first side being opposite the second side.

Description

[0001] This application is a divisional application of the invention patent application filed on November 2, 2021, with application number 202111287150.1 and invention title "Control Device for Bicycle". Technical Field

[0002] This disclosure generally relates to a control device for a bicycle, and more particularly to a control device for a bicycle braking mechanism and a gear shifting mechanism. Background Technology

[0003] Many vehicles (such as bicycles) utilize hydraulic braking systems, which apply pressure to rotating components, rotating wheels, or discs mounted on rotating wheels. Some of these braking systems utilize mechanisms including brake levers to generate pressure in hydraulic fluid. This pressure is transmitted to the brake assembly via hydraulic lines or conduits, causing hydraulic pressure to be applied to the brake assembly's pads, which then press against the rotating components to apply braking force.

[0004] The mechanism including the handlebars can be part of a control unit that also includes an electronic shifting control system. The electronic shifting control system further includes at least a shift lever positioned adjacent to the brake lever, a transmitter configured to wirelessly transmit shifting signals, and a battery unit configured to power the transmitter. The control unit can be mounted to the bicycle handlebars, allowing the rider to activate the brake lever and shift lever. Summary of the Invention

[0005] In one example, a control device that can be mounted to the handlebars of a bicycle includes: a housing having a recess; a rod coupled to the housing and pivotable relative to the housing; a master cylinder portion supported by the housing; and a battery unit located in the recess below the master cylinder portion, wherein the battery unit is a separate unit having a first battery cover on a first side of the battery unit and a second battery cover on a second side of the battery unit, the first side being opposite to the second side.

[0006] In one example, there is a battery socket on the first side of the battery cell.

[0007] In one example, the battery is configured to be received in the battery socket.

[0008] In one example, when the first battery cover is removed, the battery socket opens to the outside of the housing.

[0009] In one example, the second battery cover contacts the inner surface of the housing.

[0010] In one example, the second battery cover is a deformable cover.

[0011] In one example, the second battery cover includes a central portion that flexes away from the inner surface of the housing.

[0012] In one example, the first battery cover and the second battery cover are full covers that isolate the first side and the second side from the environment.

[0013] In one example, the battery cell includes at least one seal.

[0014] In one example, the battery cell includes one or more outer surfaces and one or more attachment features that extend away from the one or more outer surfaces to attach the battery to the housing.

[0015] In one example, the housing includes one or more recesses, and the one or more attachment features are capable of engaging with the one or more recesses of the housing, such that the battery cell is held within the housing.

[0016] In one example, the one or more outer surfaces include an outer annular surface, and the one or more recesses include a plurality of recesses, wherein the one or more attachment features include a plurality of tabs extending away from the outer annular surface, the plurality of tabs being capable of engaging with the plurality of recesses respectively.

[0017] In one example, the battery cell is connected to a printed circuit board via a cable.

[0018] In one example, a control device mountable to a bicycle handlebar includes a housing, a rod coupled to the housing and pivotable relative to the housing, and a master cylinder portion supported by the housing. The master cylinder portion has a fluid cylinder. The fluid cylinder has a first end and a second end opposite the first end, with a cylindrical wall between the first end and the second end. The fluid cylinder is hollow, such that an opening extends through the master cylinder portion from the first end to the second end. The control device further includes: a plug removably connected to the master cylinder portion via the opening at the first end of the fluid cylinder; and a piston assembly supported by the housing. The piston assembly is movable relative to the master cylinder portion. At least a portion of the piston assembly is disposed within the master cylinder portion. The housing is made of a first material, and the master cylinder portion is made of a second material. The second material is different from the first material.

[0019] In one example, the control device further includes a lever. The lever is connected to the piston assembly via the lever, such that rotation of the lever relative to the housing causes translation of the piston assembly relative to the master cylinder portion.

[0020] In one example, the first material is glass-filled nylon or carbon-filled nylon, and the second material is aluminum.

[0021] In one example, the plug is a vent plug, and the first opening is a vent port.

[0022] In one example, the bleed plug has a central axis extending along the length of the bleed plug. The central axis of the bleed plug extends through the opening, which passes through the master cylinder portion.

[0023] In one example, the central axis of the bleed plug is a first central axis. The master cylinder portion has a second central axis extending along the length of the master cylinder portion. The first central axis and the second central axis are aligned.

[0024] In one example, the central axis of the bleed plug is a first central axis. The master cylinder portion has a second central axis extending along the length of the master cylinder portion. The first central axis is offset relative to the second central axis.

[0025] In one example, the piston assembly is biased against the inner surface of the fluid cylinder, such that the inner surface of the fluid cylinder acts as a stop and positions the piston assembly in an initial position relative to the master cylinder portion. The inner surface of the fluid cylinder is closer to the first end of the fluid cylinder than to the second end.

[0026] In one example, the cylindrical wall of the fluid cylinder has at least one inner annular surface and at least one outer annular surface. The cylindrical wall of the fluid cylinder includes a first opening and a second opening, the first opening extending from one of the inner annular surfaces through the cylindrical wall to one of the outer annular surfaces of the cylindrical wall, and the second opening extending from one of the inner annular surfaces or another inner annular surface through the cylindrical wall to one of the outer annular surfaces or another outer annular surface of the cylindrical wall. The first opening is positioned at a distance relative to the second opening along the length of the main cylinder portion.

[0027] In one example, the first opening is a timing port, and the second opening is a compensation port.

[0028] In one example, the piston assembly includes a hollow piston having a first end, a second end opposite the first end, an inner annular surface, an outer annular surface, and a flange extending around and away from the outer annular surface. The piston assembly also includes a piston cap connected to the first end of the piston; and a seal disposed around the piston and between the flange and the piston cap.

[0029] In one example, the seal is configured to be adjacent to the first opening when the piston assembly is in the initial position relative to the master cylinder portion.

[0030] In one example, fluid can be disposed within a volume between the piston and the fluid cylinder. The piston assembly is configured to translate relative to the master cylinder portion in a first direction when the rod rotates relative to the housing, such that the seal moves toward the timing port and ejects a portion of the fluid from the master cylinder portion for actuating the bicycle's brake calipers.

[0031] In one example, the piston cap has a castle-shaped end.

[0032] In one example, the control device further includes: a fluid port supported by the housing; and a fluid chamber located within the housing. When the piston assembly is in the initial position relative to the master cylinder portion, the control device has a fluid path located between the fluid port and the plug via a volume between the master cylinder portion and the piston, a first opening through the cylindrical wall of the master cylinder portion, the fluid chamber, a second opening through the cylindrical wall of the master cylinder portion, and the piston cap.

[0033] In one example, the control device further includes: a gearshift lever coupled to and movable relative to the housing; an electrical switch actuated by movement of the gearshift lever; and a controller communicating with the electrical switch. The controller is configured to generate a gear shift signal in response to actuation of the electrical switch. The control device also includes a battery socket supported by the housing. The battery socket is electrically connected to the controller such that when a battery is disposed within the battery socket, the battery is configured to power the controller, the electrical switch, the gearshift lever, or any combination thereof. The control device also includes one or more removable battery covers that enclose the battery socket.

[0034] In one example, the battery socket has one or more outer surfaces and includes one or more attachment features extending away from the one or more outer surfaces. The housing includes one or more recesses corresponding to the one or more attachment features. The one or more attachment features are capable of engaging with the one or more recesses of the housing, such that the battery socket is retained within the housing.

[0035] In one example, the one or more outer surfaces include an outer annular surface, and the one or more recesses include a plurality of recesses. The one or more attachment features include a plurality of tabs extending away from the outer annular surface. The plurality of tabs are capable of engaging with the plurality of recesses respectively.

[0036] In one example, a brake control device for a bicycle includes: a housing including a fluid chamber; a rod coupled to and pivotable relative to the housing; and a master cylinder portion supported by the housing. The master cylinder portion has a fluid cylinder. The fluid cylinder has a first end and a second end opposite the first end. The brake control device also includes a plug removably connected to the first end of the fluid cylinder. When the plug is removed from the fluid cylinder, the fluid cylinder is accessible from outside the housing. The brake control device has a fluid path located between the first end and the second end of the fluid cylinder via the fluid chamber of the housing.

[0037] In one example, the fluid cylinder has an opening extending radially through a portion of the fluid cylinder. The fluid path between the first end and the second end of the fluid cylinder includes a fluid path located between the fluid chamber and the second end of the fluid cylinder via the opening through the portion of the fluid cylinder.

[0038] In one example, the portion of the fluid cylinder is a first portion of the fluid cylinder, and the opening is a first opening. The fluid cylinder has a second opening extending radially through a second portion of the fluid cylinder. The first opening is positioned at a distance relative to the second opening along the length of the fluid cylinder. The fluid path between the first end and the second end of the fluid cylinder includes a fluid path located between the first end of the fluid cylinder and the fluid chamber via the second opening through the second portion of the fluid cylinder. Attached Figure Description

[0039] The objects, features, and advantages of the present invention will become apparent after reading the following description in conjunction with the accompanying drawings, wherein:

[0040] Figure 1 A side view of an example bicycle that can be equipped with a control device constructed according to the teachings of this disclosure;

[0041] Figure 2 yes Figure 1 A first external perspective view of the bicycle's control mechanism and a portion of the handlebars;

[0042] Figure 3 yes Figure 1 A second external perspective view of the bicycle's control mechanism and a portion of the handlebars;

[0043] Figure 4 yes Figure 2 A first side view of the control device, wherein the cover has been removed;

[0044] Figure 5 yes Figure 2 A second side view of the control device, wherein the cover has been removed;

[0045] Figure 6 yes Figure 2 A perspective view of the control device, in which the cover is removed and the brake lever is detached from the housing of the control device;

[0046] Figure 7 yes Figure 6 First exploded perspective view of the brake lever and gear shift lever;

[0047] Figure 8 yes Figure 2 An exploded perspective view of the brake system components of the control device, in which the cover has been removed;

[0048] Figure 9 yes Figure 2 Front view of the control device;

[0049] Figure 10 yes Figure 9 A cross-sectional view of the control device taken along axis AA;

[0050] Figure 11 yes Figure 10 A close-up view of a portion of the cross-sectional view of the control device;

[0051] Figure 12 yes Figure 8 An external perspective view of the piston end cap of the control device;

[0052] Figure 13 yes Figure 6 The second exploded perspective view of the brake lever and gear shift lever, and the exploded perspective view of the battery assembly;

[0053] Figure 14 yes Figure 2A bottom view of the control device;

[0054] Figure 15 yes Figure 14 A close-up cross-sectional view of the battery assembly of the control device along axis DD;

[0055] Figure 16 yes Figure 2 A bottom view of the brake lever and gearshift lever assembly of the control device; and

[0056] Figure 17 yes Figure 16 A close-up cross-sectional view of a portion of the gearshift lever assembly taken along axis EE. Detailed Implementation

[0057] This disclosure provides examples of control devices for bicycles that address or improve upon one or more drawbacks of existing known control devices. To achieve a low-cost construction of the master cylinder and piston assembly, the master cylinder is independent of the control device's lever body. This allows each component to be designed and manufactured using, for example, the lowest cost and / or lowest weight materials available for each component. Multiple components and / or functions are integrated together to reduce the number of parts for cost and / or assembly purposes.

[0058] For example, the bleed port and bleed screw are integrated into the master cylinder, which is a separate component of the lever. The master cylinder also includes a timing port. The timing port allows fluid to flow between the calipers of the brake assembly and the reservoir within the lever of the control unit. When the master seal crosses the timing port, the seal absolutely diverts fluid and builds up hydraulic pressure in the hydraulic lines to the brake assembly. This hydraulic pressure generates braking force, slowing the bicycle and rider. To this end, the master seal is positioned close to the timing port to allow minimal lever movement before the rider feels the brakes.

[0059] Compared to existing control devices, the disclosed control device reduces tolerance variations between the master cylinder and the main seal. Existing control devices rely on a positioning feature formed on the rod body, which is separate from the master cylinder, to position the piston assembly relative to the master cylinder. The control device of this disclosure stops and positions the piston assembly on the master cylinder, the piston assembly including, for example, a main piston, a main seal, a slip ring bushing, and a piston cap.

[0060] Upon reading this disclosure, these and other objects, features, and advantages of the disclosed control apparatus will become apparent to those skilled in the art. In all the accompanying drawings using the same reference numerals, the same reference numerals denote the same or substantially similar components in the various disclosed examples. Furthermore, specific examples of specific combinations utilizing the disclosed aspects, features, and components of this disclosure are disclosed and described herein. However, it is possible that each disclosed aspect, feature, and / or component of this disclosure may be used independently of other aspects, features, and components of this disclosure or in different combinations with other aspects, features, and components of this disclosure in other examples not disclosed or described herein.

[0061] Now turn to the attached image. Figure 1 A bicycle 50 is shown, having a frame 52, a front wheel 54 connected to a front fork 56, and a rear wheel 58 connected to a rear top fork 60 and a rear chainstay 62. The front wheel 54 and the rear wheel 58 support the frame 52 above a surface on which the bicycle 50 can travel in the forward direction indicated by the arrow "X". The bicycle 50 has drop handlebars 64 mounted to the head tube 66 of the frame 52. The bicycle 50 also has a saddle 68 carried by a seatpost 70 received in the seat tube 72 of the frame 52. The bicycle 50 may have one or both of a front derailleur 74 (e.g., a front electromechanical derailleur; hereinafter referred to as a front derailleur) and a rear derailleur 76 (e.g., a rear electromechanical derailleur; hereinafter referred to as a rear derailleur) mounted to the frame 52. The bicycle 50 includes a multi-gear transmission 78 having one or more chainrings 80 driven by a crank assembly 82, which has two crank arms 84 and two pedals 86 respectively. The chainrings 80 can be connected to a plurality of sprockets 88 at the rear wheel 58 via a chain 90.

[0062] Reference Figures 1 to 3 In the disclosed example, bicycle 50 has at least one bicycle control device 100 (e.g., control unit 100) that can be mounted to handlebars 64. In this example, control unit 100 includes a brake control element of a braking system. The brake control element includes a brake lever 102 movably connected to a cover or housing 104 of control unit 100. Brake lever 102 operates components of the braking system of bicycle 50. In one example, the braking system may include a hydraulic front brake mechanism 106 coupled to the front wheel 54 and / or a hydraulic rear brake mechanism 108 coupled to the rear wheel. In an alternative embodiment, the braking system may be a mechanical cable-operated braking system. As described in more detail below, control unit 100 also includes a shift control element of an electronic shift control system. The shift control element includes a shift lever assembly 112 for shifting gears on bicycle 50.

[0063] Reference Figure 2 and Figure 3The following describes different external views of a control device 100 constructed according to an example of the present disclosure. The control device 100 may be mounted on a handlebar 64. In one example, the housing 104 includes a clamp 120 that may include an adjustable strap extending around the handlebar 64. In one example, the bicycle 50 may include a pair of control devices 100, one on the left and one on the right of the handlebar 64, as is known. Together, the pair of control devices 100 may be configured to operate the front derailleur 74 and the rear derailleur 76, respectively, and the front brake mechanism 106 and the rear brake mechanism 108, respectively. In one example, the pair of control devices 100 may be identical to each other.

[0064] In the published examples, refer to Figure 4 and Figure 5 The control device 100 includes a cover (e.g., housing 104), which may consist of an outer cover or an outer cover 122 (see...). Figure 2 and Figure 3 The housing 104 is shaped and sized to be gripped by the user's or rider's hand, and the cover 122 may be configured to closely conform to and cover the shape of the housing 104. The housing 104 and the cover 122 may serve as a grip, or may be configured together as a grippable portion of the control unit 100. The housing 104 may be formed from various materials, such as metals, plastics, and / or composites. For example, the housing 104 may be made of fiber-filled or fiber-reinforced plastics, such as glass-filled nylon or carbon-filled nylon. The housing 104 is configured to carry, house, and / or support the various components and mechanisms of the control elements of the braking system and electronic shifting control system, as described in more detail below. The cover 122 may be made from various materials, such as natural materials and / or synthetic elastomer materials. The cover 122 may be configured to provide a comfortable interface for the user and reduce the tendency to detach or move from the exterior of the housing 104. For example, the cover 122 may be made of flexible thermoplastic elastomers (TPEs) such as Santoprene. TM Formation. The outer cover 122 can be configured to be removably attached to the housing 104 and held in place on the housing using any known fixing or attachment method.

[0065] In this example, refer to Figures 4 to 6With the outer cover 122 removed, the brake lever 102 is pivotally or movably attached to the housing 104. The brake lever 102 may be attached to the housing 104 at or near the front portion, such that the brake lever 102 is spaced forward from the handlebar 64. Thus, the brake lever 102 may pivot generally forward and backward relative to the housing 104. The brake lever 102 may be made of various materials, such as metals (e.g., aluminum), plastics, and / or composite materials. The brake lever 102 may include a pivot hole or a plurality of pivot holes 124 near its proximal end. The pivot holes 124 may be aligned with each other and define a pivot axis P oriented generally perpendicular to the longitudinal axis of the grip 125 of the brake lever 102. The brake lever 102 may be attached to the housing 104 via a shaft 126 formed by, for example, a pivot pin, rod, shaft, or the like, passing through the pivot hole.

[0066] In the published examples, refer to Figure 2 The brake lever 102 may have a U-shaped recess or defined channel along at least a longitudinal portion of the grip 125. The shifter assembly 112 may be positioned at least partially in a nested arrangement within the recess or channel, as described in more detail below. This nested arrangement of the shifter assembly 112 with the brake lever 102, and the U-shape of the lever body, provides structural rigidity and protection for components housed within the channel. The shifter assembly 112 may also be pivotally or movably attached to the housing 104, the pivoting mechanism, or the brake lever 102. The shifter assembly 112 may be positioned behind the brake lever 102 (e.g., when mounted on a bicycle 50, positioned between the brake lever 102 and the handlebars 64). The shifter assembly 112 may be made of various materials, such as plastics or composite materials. In one example, the shifter assembly 112 may be at least partially made of a material that does not significantly inhibit the penetration of wirelessly transmitted signals.

[0067] Reference Figure 7 The shifter assembly 112 is laterally pivotable about axis S, which is substantially perpendicular to the pivot axis P of the brake lever 102 about axis 126. Therefore, the shifter assembly 112 can move relative to the bicycle 50 in both inward and outward directions while remaining nested and aligned with the brake lever 102.

[0068] The shift lever assembly 112 includes a bracket 131 and a shift lever 132. The shift lever 132 has a proximal end 134 that is pivotally attached directly or indirectly to the bracket 131, housing 104, and / or brake lever 102 via a pivot pin (not shown). The pivot pin defines a pivot axis S of the shift lever assembly 112. The shift lever 132 also has a distal end or paddle-shaped end 138 opposite the proximal end 134 and a lever arm 140 (e.g., an elongated lever arm) connecting the proximal end 134 and the distal end 138. The lever arm 140 may be a closed hollow body or may be U-shaped or side-opening, and may include structural ribs. The shift lever 132 may be made of various materials, including, for example, plastic.

[0069] In one example, the bracket 131 may have a lateral opening 142 positioned to receive a pivot shaft 126 passing through the shift lever assembly 112 of the brake lever 102. For example, the brake lever 102 and the shift lever assembly 112 may be pivotally mounted to the housing 104 via the two-piece shaft 126. (See reference...) Figure 6 The two-piece shaft 126 includes a bolt 126a on one side and a nut 126b fastened to the bolt 126a on the other side. In one embodiment, at least a portion of the outer annular surface of the shaft of the bolt 126a includes raised knurled features that help retain the bolt 126a within the housing of the control device 100. Two bushings 143 provide a low-friction, compliant interface between the brake lever 102 and the shaft 126.

[0070] Reference Figure 7 The proximal end 134 of the shift lever 132 and / or the bracket 131 may also carry connecting components for connecting the brake lever 102 to the hydraulic braking system. These components may include a sleeve 144 carried by the bracket 131 and spaced apart from and parallel to the lateral opening 142. When the shift lever assembly 112 is assembled to the brake lever 102, the sleeve 144 is received in a set of openings 145 at the proximal end of the brake lever 102, said set of openings being spaced apart from the pivot bore 124. The combination of the sleeve 144 and the openings 145, together with the lateral opening 142 and the shaft 126, binds the brake lever 102 and the shift lever assembly 112 together relative to the brake lever pivot axis P. Thus, the shift lever assembly 112 is configured to move together with the brake lever 102 about the pivot axis P when the braking system is operated, but to move independently of the brake lever 102 when the shift control system is operated. As described in more detail below, the paddle-shaped end 138 of the shift lever 132 includes an internal cavity 146 that houses the shift lever assembly 112 and electronic components of the shift control system.

[0071] Reference Figures 6 to 8 The bicycle control device 100 has four main components, including a housing 104, an outer cover 122 (not shown, see...). Figure 2 and Figure 3 The gear lever 102 and the gear shift assembly 112 are included. According to the teachings of this disclosure, both the gear shift assembly 112 and the housing 104 further include additional sub-components. The sub-components of the gear shift assembly 112 are... Figure 7 As roughly shown, and the sub-components of housing 104 are in Figure 8 It is roughly shown in the middle.

[0072] In the published examples, refer to Figure 7 The gearshift assembly 112 is a separate electrical component. In this example, the gearshift assembly 112 includes electronic components for operating the bicycle control unit 100. In this example, some of the electronic components are housed within an internal cavity 146 in the paddle-shaped end 138 of the gearshift 132, and some of the electronic components are outside the internal cavity 146 in the paddle-shaped end 138 but are electrically connected to the electronic components within that internal cavity.

[0073] In this example, the paddle-shaped end 138 of the shift lever 132 has a larger surface area than the adjacent lever arm 140. The paddle-shaped end 138 thus provides a convenient and ergonomic contact point for the user. The internal cavity 146 within the paddle-shaped end 138 includes a cover 148, which can be secured to the paddle-shaped end 138 by fasteners 150 (e.g., four fasteners) to close and / or seal the internal cavity 146 and prevent water and other contaminants from entering the internal cavity 146. A seal 152 can be inserted between the internal cavity 146 and the cover 148. The seal 152 can be a rubber sealing membrane or a layer of any suitable material that seals the internal cavity 146 within the paddle-shaped end 138 to prevent the entry of moisture or contaminants.

[0074] In one example, a printed circuit board (PCB) 154 is disposed within an internal cavity 146 in a paddle-shaped end 138. The internal cavity 146, having two openings, accommodates the PCB 154. For example, a cable 188 is attached to the PCB 154 using a connector (e.g., a 2C board connector) and passes through the first of the two openings (not shown). The first opening of the internal cavity 146 can be sealed, for example, with a ziplock. The PCB 154 is positioned within the internal cavity 146 via the second of the two openings.

[0075] Various electronic components can be mounted to or connected to PCB 154. PCB 154 may include a communication module 156 configured to transmit signals from control device 100. In one example, communication module 156 may be configured for wireless transmission of signals in the form of electromagnetic radiation (EMR), such as radio waves or radio frequency signals. Optionally, communication module 156 may also be configured to receive signals. In one example, communication module 156 may be configured to receive signals that may be in the form of EMR, such as radio waves or radio frequency signals. Communication module 156 may include or may be a transmitter, receiver, or transceiver. PCB 154 may also include an antenna 158 that operatively communicates with communication module 156 to transmit and optionally also receive EMR signals. Antenna 158 may be any device configured to transmit and / or receive electromagnetic radiation waves (e.g., TV or radio waves).

[0076] In the disclosed example, antenna 158 is located on PCB 154 in a position where it can transmit signals without significant interference from the structure of the bicycle control unit 100 and / or the rider's hand. In another example, to help reduce or prevent interference, antenna 158 may be a wireless antenna and may be at least partially located in or on a portion of the bicycle control unit 100 that is separated from and distanced from housing 104. For example, antenna 158 may be located on another component of brake lever 102 or shift lever 132.

[0077] In one example, the bicycle control unit 100 also includes a controller (not shown), which is also located on the PCB 154, for example. The controller is operatively connected to the communication module 156 to perform electronic operations, such as generating signals related to one or more of shifting, pairing, derailleur adjustment operations, power management, etc. The controller may be programmable and configured to generate signals to control, for example, the front derailleur 74 and the rear derailleur 76. In one example, the controller may be a microcontroller with internal memory. In another example, the communication module 156 may be programmable and configured to send and / or receive signals to control the front derailleur 74 and the rear derailleur 76. In one example, the communication module 156 may be a transceiver. Various types of microcontrollers and communication modules 156 can be used. Additionally, as is known in the art, auxiliary electrical and / or electronic devices and components may be used to further enhance or implement the functionality and operation of the controller and communication module 156 and related components.

[0078] In one example, the electronics of the shifter assembly 112 may also include at least one light source (not shown) (e.g., a light-emitting diode (LED)). The LED may also be located on the PCB 154. The LED can convey status information to the rider, such as information related to the electronics and / or functions of the shifter assembly 112 or the bicycle control unit 100.

[0079] In one example, the electronic components may include one or more electrical switches. For example, when actuated, the first electrical switch 160 may cause operations to be performed by the controller and / or communication module 156. These operations may involve signal transmission or reception, pairing of derailleurs 74, 76 and control device 100, adjustment and / or shifting operations, etc. The first electrical switch 160 may generate signals to initiate or cause action and / or response from various mechanisms of the bicycle 50, such as the front derailleur 74 and / or the rear derailleur 76.

[0080] In this example, the first electrical switch 160 includes a contact (not shown) on a PCB 154 located below a resilient dome-shaped switching element 162, also on the PCB 154. In this example, the first electrical switch 160 is actuated through a seal 152 from the outside of an internal cavity 146 in the paddle-shaped end 138 of the shift lever 132. A cover 148 has a first switch opening 164, wherein both the cover 148 and the first switch opening 164 are located on the inward-facing side of the shift lever 132 (e.g., the non-actuated side of the paddle-shaped end 138). An actuator 166 is located in the first switch opening 164, as... Figure 5 and Figure 6 As shown. Actuator 166 includes a button 168 received in a hole 170 in the inner wall 172 of brake lever 102. Spring retainer 174 is held in a first switch opening 164 in cover 148. Spring 176 extends between button 168 and spring retainer 174 and directs shift lever 132 toward outer wall 178 of brake lever 102 (see Figure 160). Figure 8 Bias. For example, a rider operates the shift lever 132 by pushing inward on an actuating surface (e.g., the outer surface of the paddle end 138) against the bias force of the spring 176. When the rider pushes the paddle end 138, the button 168 eventually contacts the spring retainer 174. Through the seal 152, the spring retainer 174 pushes against the resilient dome switch element 162, which further contacts a contact on the PCB 154 to close and actuate the first electrical switch 160.

[0081] As another example, the second electrical switch 180 includes contacts on the PCB 154. The contacts may be dome-shaped switching elements or pressure-type switching contacts. In this example, the second electrical switch 180 is also actuated through the seal 152 from the outside of the internal cavity 146 and the shift lever 132. The cover 148 has a second switch opening 182, wherein both the cover 148 and the second switch opening 182 are also located on the inward-facing side of the shift lever 132 (e.g., the non-actuated side of the paddle end 138). A button 184 extends through and is located in the second switch opening 182 within the cover 148, as... Figure 5 and Figure 6 As shown. Button 184 may be integrally formed as part of seal 152 or may be attached to seal 152. For example, a rider simply operates the second electrical switch 180 by pressing button 184 toward cover 148. The material layer beneath button 184 or seal 152 may have a point contact (not shown) at its inner end, which pushes against seal 152 to press and close contacts to actuate the second electrical switch 180.

[0082] The first button 168 and the second button 184 operate through the material layer of the seal 152, thereby not compromising the integrity of the seal 152 for the internal cavity 146 in the paddle end 138. Other types of electrical switches may be used. The first electrical switch 160 may be used to operate the control device 100 on a more frequent and forceful basis, for example, to initiate a gear shift or gear change. The second electrical switch 180 may be an optional switch, and in this example, may be smaller and more independent. The second electrical switch 180 may be designed to be used at a lower frequency than the first electrical switch 160. In one example, the second electrical switch 180 may be used for operations related to pairing the bicycle control device with specific bicycle components, such as the front derailleur 74 and / or the rear derailleur 76, or for adjusting the front derailleur 74 and / or the rear derailleur 76. Actuation of the first electrical switch 160 and the second electrical switch 180 sends signals via an associated circuit system for action by the controller.

[0083] Electronic components on the PCB 154 and within the internal cavity 146 of the paddle end 138 are held and sealed in place within the internal cavity 146. When the cover 148 is fastened to the shift lever 132, for example, with four fasteners 150, a seal 152 covers the PCB 154 and is clamped between the cover 148 of the paddle end 138 and the shift lever 132. The seal 152 may be, for example, a gasket. (See reference...) Figure 7The paddle-shaped end 138 may include a groove 186 surrounding an opening into the internal cavity 146. Ribs on the seal 152 are located in the groove 186 to form a tight environmental seal when the cover 148 is secured to the paddle-shaped end 138. In one example, a second opening in the internal cavity 146 is sealed with the seal 152, which is compressed and held by the cover 148; the cover 148 is secured to the shift lever 132 using four fasteners 150 in the form of self-tapping screws that are directly mounted into the shift lever 132.

[0084] Reference Figure 7 Cable 188 (e.g., a single two-wire (2C) cable) is electrically connected to electronic components on PCB 154 and is routed from internal cavity 146 through an opening (e.g., a first opening of internal cavity 146) into lever arm 140. Cable 188 extends inside lever arm 140 and is routed around sleeve 144 and lateral opening 142 on the proximal end 134 of shift lever 132. In the disclosed example, cable 188 is connected to a power source (e.g., a separate battery cell 190). The separate battery cell 190 will be described in more detail below.

[0085] The gearshift assembly 112 may include additional, fewer, and / or different components. For example, such as Figure 7 As illustrated in the example, the shift lever assembly 112 may include a backing 192 that can be inserted between and held by the cover 148 and the paddle-shaped end 138 of the shift lever 132. Each of the cover 148 and the paddle-shaped end 138 of the shift lever 132 may be formed as a receiving portion, such as a recess 194, defining an edge that captures the backing 192. The backing 192 may form a contact point between the top of the shift lever 132 and a contact surface on the inner surface of the brake lever inner wall 172. The contact surface may include a bulge or protrusion positioned to contact the backing 192. The backing 192 may be captured between the bulge on the inner surface of the brake lever inner wall 172 and the recess 194 on the shift lever 132. The backing 192 may be formed of a durable material with low friction properties. In one example, the backing 192 may be made of a material different from that of the shift lever 132, such as Teflon or titanium, and may be attached to the shift lever 132. Therefore, the backing 192 allows the shift lever 132 to slide laterally and easily relative to the brake lever 102 to suppress binding and wear.

[0086] Figure 6 A chamber 196 within the housing 104 is shown, in which the brake lever 102 is connected to components of the hydraulic braking system. (See reference...) Figure 8The chamber 196 is accessible via a removable chamber cover 198. The chamber cover 198 is secured to the housing 104 by screws 200 or other fasteners, snap-fit ​​connections, adhesives, or other types of fixing devices. Although not described in detail herein, the chamber 196 can accommodate components of the control device 100 and provide access to these components for maintenance or adjustment. When the outer cover 122 is attached to the housing 104, the chamber cover 198 can be covered, concealed, and protected from environmental influences.

[0087] Reference Figures 8 to 11 The housing 104 typically includes a housing bore 201 into which a master cylinder sleeve 202 (e.g., a fluid cylinder) is inserted and configured to function as a master cylinder for a braking system. The master cylinder sleeve 202 can be of various sizes and / or shapes. For example, as... Figure 8 , Figure 10 and Figure 11 As shown, the master cylinder liner 202 can be cylindrical and hollow. The master cylinder liner 202 can be made of various materials, including, for example, aluminum, aluminum alloys, stainless steel, plastics, composite materials, another material, or any combination thereof. In one example, the housing 104 is made of a first material (e.g., glass-filled nylon), and the master cylinder liner 202 is made of a second material different from the first material (e.g., aluminum). In another example, the first and second materials are the same material.

[0088] At least a portion of piston 204 is located in and movable relative to master cylinder liner 202. Piston 204 has a first end 206 and a second end 208 opposite to the first end 206. End cap 210 (e.g., piston top cap) is removably attached to the first end 206 of piston 204 (e.g., via a corresponding thread). Piston 204 is coupled to brake lever 102 via tie rod 212 at or adjacent to the second end 208 of piston 204 (e.g., at a position closer to the second end 208 of piston 204 than the first end 206 of piston 204), and is operable by movement of brake lever 102 as is known in the art.

[0089] For example, such as Figure 10 and Figure 11As shown, the pull rod 212 has a first end 214 and a second end 216 opposite to the first end 214. The first end 214 of the pull rod 212 includes a body 218 that can be disposed within the piston 204. The piston 204 is hollow and has one or more inner surfaces 220 (e.g., inner annular surfaces, at least one of which is angled relative to a central axis along the length of the piston 204), the dimensions and shapes of which are designed to prevent the body 218 from disengaging from the second end 208 of the piston 204. For example, one or more inner surfaces 220 of the piston 204 may project inward at or adjacent to the second end 208 of the piston 204 (e.g., closer to the second end 208 of the piston 204 than the first end 206 of the piston 204), and the body 218 of the pull rod 212 may abut against one or more inner surfaces 220 of the piston 204. In an alternative embodiment, the piston may be solid and may include an external feature, rather than a pull rod, for pulling on the piston. In an alternative implementation, the piston and top cap can be machined together to form a single part.

[0090] Reference Figure 8 , Figure 10 and Figure 11 A first spring 222 (e.g., a release spring) is disposed within the piston 204 and between the end cap 210 and the body 218 of the pull rod 212. The release spring 222 may be, for example, a compression spring, and acts on the end cap 210 and the body 218 of the pull rod 212 such that the body 218 of the pull rod 212 is pressed into contact with one or more inner surfaces 220 of the piston 204. In one embodiment, the release spring 222 is disposed around a portion of the end cap 210.

[0091] Therefore, the body 218 of the lever 212 is contained within a portion of the piston 204. When a force is applied to the brake lever 102, the applied force is partially transmitted to the piston 204 via the lever 212 (e.g., the body 218 of the lever 212). This transmitted force can cause the piston 204 to move (e.g., translate) relative to the master cylinder liner 202. When the brake lever 102 is released and no force is applied, the release spring 222 holds the body 218 of the lever 212 pressed against one or more inner surfaces 220 of the piston 204.

[0092] Piston 204 includes a flange 224 extending around an outer surface 226 (e.g., an outer annular surface) of piston 204. The flange 224 may be arranged adjacent to a first end 206 of piston 204 (e.g., closer to the first end 206 than a second end 208 of piston 204). When end cap 210 is attached to the first end 206 of piston 204, one or more components may be disposed between the flange 224 and end cap 210 of piston 204. For example, a ring 228 (e.g., a support ring) and a seal 230 (e.g., a cup seal) may be disposed around piston 204 and / or end cap 210, and between end cap 210 (e.g., the head of end cap 210) and flange 224 of piston 204. The support ring 228 may be made of various materials including, for example, metal, and the seal 230 may be made of various materials including, for example, polyurethane or rubber. The support ring 228 and seal 230 may each have various shapes and sizes. For example, both the support ring 228 and the seal 230 can be hollow cylinders. The seal 230 is supported by the support ring 228, enabling the seal 230 to handle high pressure.

[0093] The piston assembly may include various components, including, for example, piston 204, end cap 210, pull rod 212, release spring 222, support ring 228, and seal 230. The piston assembly may include additional, fewer, and / or different components.

[0094] A second spring 232 (e.g., a return spring) is disposed within the master cylinder sleeve 202 and surrounds a portion of the piston 204 and a portion of the pull rod 212. The return spring 232 extends between the flange 224 of the piston 204 and a portion or another component (e.g., sleeve 144) of the brake lever 102 and acts on the flange 224 of the piston 204 and the portion or another component of the brake lever 102. The pull rod 212 is connected to the brake lever 102 at or adjacent to its second end 216. (See reference...) Figure 11 A portion of the lever 212 (e.g., at and / or adjacent to the second end 216 of the lever 212) extends through the opening 234 through the sleeve 144, and the lever 212 is attached to the brake lever 102 via a threaded connection within the sleeve 144.

[0095] For example, refer to Figure 7In addition to passing through the opening 145 of the brake lever 102, the sleeve 144 is also positioned within the opening 235 of the bracket 131 of the shift lever assembly 112, and a straight rod cross pin 237 with threads (e.g., female threads) is positioned within the sleeve 144, which serves as a bushing. In other words, the straight rod cross pin 237, having, for example, female threads and a single bushing (e.g., sleeve 144), is held within and rotates within the brake lever 102. The straight rod cross pin 237 acts as an attachment point for the pull rod 212 because the threads within the straight rod cross pin 237 engage with the threads (e.g., male threads) at and / or adjacent to the second end 216 of the pull rod 212.

[0096] The return spring 232 may be, for example, a compression spring, and acts on the piston 204, and on, for example, a portion of the brake lever 102 and / or another component (e.g., a spring catcher), such that the piston 204 is biased upwards, and the end cap 210 abuts the upper inner surface 236 of the master cylinder sleeve 202 when attached to the first end 206 of the piston 204. In other words, the piston 204 is biased toward the upper inner surface 236 of the master cylinder sleeve 202. The upper inner surface 236 may be, for example, the uppermost inner surface of the master cylinder sleeve 202. The contact between the end cap 210 and the upper inner surface 236 of the master cylinder sleeve 202 positions the end cap 210 and the piston 204, and thus the seal 230, relative to the master cylinder sleeve 202.

[0097] When a force is applied to the brake lever 102 and the piston 204 translates relative to the master cylinder sleeve 202 away from the upper inner surface 236 of the master cylinder sleeve 202, the return spring 232 is compressed, and the end cap 210 moves away from contact with the upper inner surface 236 of the master cylinder sleeve 202. When the brake lever 102 is released and no force is applied, the return spring 232 presses the end cap 210 back into contact with the upper inner surface 236 of the master cylinder sleeve 202.

[0098] Reference Figure 11 The housing bore 201 may include a first end 238 and a second end 240 opposite to the first end 238. The housing bore 201 extends through the housing 104. The piston 204 and / or the rod 212 may extend through the second end 240 of the housing bore 201. Additional components of the hydraulic braking system may be disposed at and / or disposed adjacent to the second end 240 of the housing bore 201 for sealing and component retention. For example, such as Figure 8 , Figure 10 and Figure 11 As shown, seal 242 and catcher 244 (e.g., lower spring catcher) may be disposed within housing bore 201 surrounding piston 204.

[0099] Reference Figure 11Seal 242 and catcher 244 may be configured adjacent to the second end 240 of housing bore 201. For example, housing 104 includes a shelf 246 defining the second end 240 of housing bore 201, and seal 242 is disposed on shelf 246. Catcher 244 and seal 242 are adjacent to or adjacent to seal 242. Seal 242 protects components of the hydraulic braking system within housing 104 from environmental influences, and catcher 244 helps retain return spring 232 and master cylinder sleeve 202 within housing bore 201.

[0100] The seal 242 can be of various sizes and shapes and can be made of various different materials, including, for example, rubber. The catcher 244 can also be of various sizes and shapes and can be made of various different materials, including, for example, metal.

[0101] Reference Figures 8 to 11 The master cylinder sleeve 202 includes an opening 248 (e.g., a bleed port) that extends through the master cylinder sleeve 202 at, for example, a first end 250 (e.g., the upper end). A bleed plug 252 (e.g., a bleed screw) is removably connected to the bleed port 248 via, for example, a corresponding thread, such that hydraulic fluid from the brake system can be filled, filled, or bleed through the chamber 196. The bleed plug 252 can be of various shapes and sizes and can be made of various materials. In one example, the bleed plug 252 is made of the same material as the master cylinder sleeve 202. For example, the bleed plug 252 is made of a second material (e.g., aluminum) that is different from the material used to make the housing 104 (e.g., the first material). Alternatively, the bleed plug 252 may be made of the same material as the housing 104.

[0102] Reference Figure 11 The bleed plug 252 has a central axis B extending along its length, and the master cylinder sleeve 202 has a central axis C extending along its length. Figure 11 In the example shown, when the bleed plug 252 is connected to the master cylinder sleeve 202 at the bleed port 248, the central axis B of the bleed plug 252 extends through the bleed port 248 and is in a straight line with the central axis C of the master cylinder sleeve 202. In other words, when connected to the master cylinder sleeve 202 at the bleed port 248, the bleed plug 252 can be concentric with the master cylinder sleeve 202.

[0103] In another example, the bleed plug 252 can be connected to the master cylinder sleeve 202 or the housing 104 such that the central axis B of the bleed plug 252 is offset relative to the central axis C of the master cylinder sleeve 202. In other words, when connected to the master cylinder sleeve 202 at the bleed port 248, the bleed plug 252 may not be concentric with the master cylinder sleeve 202. For example, the bleed port 248 may be offset relative to the central axis C of the master cylinder sleeve 202.

[0104] When the bleed plug 252 is removed, chamber 196 becomes accessible via end cap 210 and master cylinder sleeve 202. In other words, master cylinder sleeve 202 is in fluid communication with chamber 196, which can be used as a brake fluid chamber for the braking system.

[0105] Reference Figure 11 The main cylinder liner 202 has one or more outer annular surfaces 254 and one or more inner annular surfaces 256. Figure 8 In the example shown, the master cylinder sleeve 202 has seven outer annular surfaces 254, each with a plurality of different diameters, for positioning, for example, seals 258 (e.g., O-rings) on the master cylinder sleeve 202 to protect components of the hydraulic braking system (e.g., the master cylinder sleeve 202 and the piston assembly) from environmental influences. The master cylinder sleeve 202 may have more or fewer outer annular surfaces 254. Figure 11 In the example shown, the master cylinder liner 202 has an inner annular surface 256. The master cylinder liner 202 may have more inner annular surfaces 256.

[0106] Reference Figure 8 The master cylinder liner 202 includes one or more first openings 260 (e.g., first openings) and one or more second openings 262 (e.g., second openings). The first openings 260 and second openings 262 extend through the master cylinder liner 202 (e.g., through the cylindrical wall of the master cylinder liner 202) from at least one of one or more outer annular surfaces 254, respectively, reaching at least one of one or more inner annular surfaces 256. In other words, the first openings 260 and second openings 262 extend radially through the master cylinder liner 202.

[0107] The second opening 262 is positioned at a distance relative to the first opening 260 along the length of the master cylinder sleeve 202. In other words, the second opening 262 is spaced apart from the first opening 260 in the direction along the length of the master cylinder sleeve 202. Figure 8 In the example shown, the second opening 262 is closer to the first end 250 of the master cylinder sleeve 202 than the first opening 260.

[0108] In one example, one or more second openings 262 are compensation ports (hereinafter referred to as compensation ports), and one or more first openings 260 are timing ports (hereinafter referred to as timing ports). The one or more compensation ports 262 and the one or more timing ports 260 can be of various shapes and sizes. For example, the one or more compensation ports 262 and the one or more timing ports 260 can be circular openings. In one example, because the flow through the one or more compensation ports 262 is less controlled than the flow through the one or more timing ports 260, the one or more compensation ports 262 can be larger (e.g., in diameter) compared to the one or more timing ports 260.

[0109] Reference Figure 11 As described above, when the brake lever 102 is not actuated, the piston assembly (e.g., end cap 210) is biased against the upper inner surface 236 of the master cylinder sleeve 202. The upper inner surface 236 of the master cylinder sleeve 202 acts as a stop and positions the piston 204 in its initial position relative to the master cylinder sleeve 202. This also positions the seal 230 surrounding the piston 204 relative to the master cylinder sleeve 202. More specifically, the seal 230 surrounding the piston 204 is positioned relative to a timing port 260 extending through the master cylinder sleeve 202. Figure 11 In the example shown, when the brake lever 102 is not pulled (e.g., when the end cap 210 contacts the upper inner surface 236 of the master cylinder sleeve 202; the initial position of the piston assembly), the seal 230 is positioned adjacent to the timing port 260.

[0110] When the piston assembly is in its initial position and the bleed plug 252 is removed, the control device 100 has a fluid path FP between a bleed port 248 (e.g., at the first end 250 of the master cylinder sleeve 202) and a fluid port 264 supported by the housing 104 (e.g., adjacent to the second end of the master cylinder sleeve 202 opposite the first end 250), the bleed port 248 being exposed to the environment when the bleed plug 252 is removed. The fluid port 264 is fluidly connected to a hydraulic line 110 leading to, for example, a hydraulic front brake mechanism 106 or a hydraulic rear brake mechanism 108. The fluid port 264 may be, for example, rotatable relative to the housing 104.

[0111] Reference Figure 6 The control device 100 includes a rod-body hose assembly 269. The rod-body hose assembly 269 is or includes a flexible portion of a hose that carries fluid from the housing 104 of the control device 100 via, for example, a hose connector (e.g., The company's Stealthamajig valve assembly and hydraulic line 110 are guided to the caliper assembly of the hydraulic front brake mechanism 106 or the hydraulic rear brake mechanism 108. The hose connector may include, for example, barbs and compression fittings. Due to the high-pressure nature of the hydraulic line 110, it has a degree of memory, which can make it difficult to cleanly route the hydraulic line 110 along the handlebars 64. The hose connector may, for example, rotate relative to the stem hose assembly 269. This allows the user to connect the stem hose assembly 269 and caliper assembly of the control unit 100 to the hydraulic line 110 and the hose connector, and to rotate the hydraulic line 110 and the hose connector relative to the stem hose assembly 269 for optimal and clean routing along the handlebars 64.

[0112] The fluid path FP between the vent port 248 and the fluid port 264 extends through the end cap 210, the second opening 262, the chamber 196, the first opening 260, and the volume 266 between the master cylinder sleeve 202 and the piston 204.

[0113] In an embodiment where the central axis B of the bleed plug 252 is offset relative to the central axis C of the master cylinder sleeve 202, the fluid path between the bleed port 248 and the fluid port 264 extends through the volume between the upper inner surface 236 of the master cylinder sleeve 202 and the end cap 210, the second opening 262, the chamber 196, the first opening 260, and the volume 266 between the master cylinder sleeve 202 and the piston 204. In this embodiment, a portion of the master cylinder sleeve 202 may extend away from the upper inner surface 236 (e.g., an extension), such that the end cap 210 abuts the extension of the master cylinder sleeve 202 and forms the volume between the upper inner surface 236 of the master cylinder sleeve 202 and the end cap 210. In another example of this embodiment, the fluid path also extends through the end cap 210. In an embodiment where the central axis B of the bleed plug 252 is offset relative to the central axis C of the master cylinder sleeve 202, the piston cap may or may not be castle-shaped.

[0114] Reference Figure 12End cap 210 has a first end 268 and a second end 270 opposite to the first end 268. The first end 268 of end cap 210 includes a head 272, and a thread 274 extends from the second end 270 of end cap 210 toward the head 272 of end cap 210. The head 272 of end cap 210 is castle-shaped, such that when the bleed plug 252 is removed, the flow path extends between the bleed port 248 and the second opening 262 via the castle-shaped portion in the head 272 of end cap 210. End cap 210 can be of various shapes (e.g., the shape of a castle) and sizes (e.g., the length of end cap 210, the number and / or size of threads), and can be made of various different materials (e.g., aluminum). The castle-shaped configuration reduces the weight of the piston assembly, thereby reducing the weight of the control device 100.

[0115] Reference Figure 8 A compliant or flexible membrane 276 can be disposed on the opening side of the chamber 196 to seal the chamber 196, thereby providing a defined fluid chamber with variable volume. The flexible membrane 276 can be positioned between the chamber cover 198 and the opening side of the chamber 196, such as... Figure 8 , Figure 10 and Figure 11 As shown. A chamber 196, at least partially defined by a flexible diaphragm 276, a housing 104, and a master cylinder sleeve 202, is filled with fluid (e.g., an incompressible fluid), such as hydraulic brake fluid.

[0116] When the rider pulls the brake lever 102 and the brake lever 102 rotates relative to the housing 104 (e.g., in the first rotational direction), the pull rod 212, connected to the brake lever 102 and the piston 204, pulls the piston, causing the piston 204 to translate in a direction away from the upper inner surface 236 of the master cylinder sleeve 202 (e.g., in the first direction). This translation of the piston 204 also causes the seal 230, which is disposed around the piston 204 and abuts the flange 224 of the piston 204, to translate in a direction away from the upper inner surface 236 of the master cylinder sleeve 202. In other words, the translation of the piston 204 away from the upper inner surface 236 of the master cylinder sleeve 202 causes the seal 230 to move in a direction toward the timing port 260 (e.g., in the first direction). Moving the seal 230 across the timing port 260 displaces a portion of the fluid within chamber 196 out of volume 266 between the master cylinder sleeve 202 and piston 204, and into hydraulic line 110 via fluid port 264. This actuates hydraulic front brake mechanism 106 or hydraulic rear brake mechanism 108. Alternatively, other techniques may be used.

[0117] For example, air in the fluid path FP between vent port 248 and fluid port 264 and / or in the hydraulic line 110 can cause inefficiency in the hydraulic braking system and may result in a loose or spongy brake lever 102. Air can be introduced into the fluid path FP via leaks, old seals, damaged hydraulic lines, and / or other causes. Air in the fluid path FP can be purged in either direction, either from the vent port 248 in the master cylinder sleeve 202 when the vent plug 252 is removed, or from the fluid port 264 or the hydraulic line 110.

[0118] The control device 100 may include additional, fewer, and / or different components. For example, see reference... Figure 8 , Figure 10 and Figure 11 The control device 100 may further include a connector 278, which, for example, translateably secures the master cylinder sleeve 202 relative to the housing 104. The connector 278 is, for example, a plate with a collar 280 that engages a portion of the master cylinder sleeve 202 (e.g., below the flange 282 at a first end 250 of the master cylinder sleeve 202). For example, the master cylinder sleeve 202 is disposed within a housing bore 201, and the connector 278 is inserted into a corresponding opening 284 within the housing 104. The collar 280 of the connector 278 engages with the master cylinder sleeve 202 below the flange 282. A flexible membrane 276 and a cap 198 retain the connector 278 within the opening 284 within the housing 104, and the collar 280 engages with the master cylinder sleeve 202. The master cylinder sleeve 202 may be supported within the housing 104 in different and / or additional ways.

[0119] In addition to the aforementioned hydraulic braking system components, housing 104 also supports a separate battery unit 190 (e.g., a battery cell). See reference... Figure 6 The battery cell 190 includes a battery housing 286 and one or more battery covers 288. The battery housing 286 is received in a recess 290 within a housing 104 and is securely attached to the housing 104 via one or more connectors (e.g., tabs or snap-fit ​​features). In this example, the battery housing 286 is fastened to the housing 104 via a plurality of attachment features 292 and corresponding recesses or slots 294 of the recess 290, the attachment features extending away from one or more outer surfaces (e.g., an outer annular surface) of the battery housing 286 and / or at least one of the battery covers 288. The plurality of attachment features 292 may include, for example, tabs extending away from one or more outer surfaces of the battery housing (e.g., four cantilever snap-fit ​​features; hereinafter referred to as snap-fit ​​features). Alternatively or additionally, the battery housing 286 may be attached to the housing 104 via adhesives, fasteners, and / or other types of connectors. More or fewer than four snap-fit ​​features 292 may be provided.

[0120] Reference Figure 13 The independent battery unit 190 may include a first battery cover 288a at a first side 296 of the battery housing 286 and a second battery cover 288b at a second side 297 of the battery housing 286. The second side 297 of the battery housing 286 is opposite to the first side 296 of the battery housing 286. The battery 298 may be received in a battery socket 300 (e.g., including a first cavity or recess), which is defined by the battery housing 286 and opens to the outside of the housing 104. The battery socket 300 is located at the first side 296 of the battery housing 286. The battery 298 may be a variety of different types of batteries, including, for example, conventional and replaceable button cell batteries. Alternatively, the battery 298 may be a non-replaceable and / or rechargeable battery.

[0121] In other embodiments, other configurations may be provided. For example, the individual battery cell 190 may include more or fewer battery covers. In one embodiment, the individual battery cell 190 includes only one battery cover (e.g., a first battery cover 288a). When the individual battery cell 190 is positioned within a recess 290 in the housing 104, the portion of the housing 104 within the recess 290 can protect and seal the second side 297 of the battery casing 286.

[0122] The first battery cover 288a and the second battery cover 288b respectively cover the first side 296 and the second side 297 of the battery casing 286. The first battery cover 288a protects the individual battery cell 190 at and adjacent to the first side 296 of the battery casing 286 (e.g., the battery 298 adjacent to the first side 296), and the second battery cover 288b protects the individual battery cell 190 at and adjacent to the second side 297 of the battery casing 286 (e.g., the electrical contacts adjacent to the second side 297). The first battery cover 288a and the second battery cover 288b at least partially enclose the battery casing 286 at the first side 296 and the second side 297 of the battery casing 286, for example.

[0123] For example, in one embodiment, the second battery cover 288b partially closes only the second side 297 of the battery casing 286, such that, for example, the electrical contacts can be accessed through the second battery cover 288b. In other words, the second battery cover 288b is a partial cover. Alternatively, the first battery cover 288a may also be a partial cover. In another embodiment, the first battery cover 288a and the second battery cover 288b are full covers, such that the battery casing 286 is sealed and isolated from the environment at the first side 296 and the second side 297 of the battery casing 286, respectively.

[0124] Battery 298 can be configured to supply power to a controller, communication module 156, remote switch, or electrical device via an accessory jack and / or other electronic components. (See reference...) Figures 13 to 17 The independent battery unit 190 also includes seals 302 (e.g., O-rings; see [link]) for the first battery cover 288a and the second battery cover 288b, respectively. Figure 15 and Figure 17 ), electrical contacts 304 (e.g., two battery contacts 304) and grommet seals 306 (see Figure 17 ).

[0125] Reference Figure 15 The battery housing 286 has a cavity 308 (e.g., a second cavity or recess; inner cavity) with two openings inside the housing 104 and a cavity 300 (e.g., a battery socket 300; outer cavity) with one opening outside the housing 104. The inner cavity 308 accommodates electrical contacts 304 attached to the battery housing 286 and the terminals of wires from the cable 188. In one example, the electrical contacts 304 are physically attached to the battery housing 286 via plastic heat fusion, although the electrical contacts 304 may be attached to the battery housing 286 in additional and / or different ways. The wires of the cable 188 may be physically attached to the electrical contacts 304 in various ways, including, for example, via crimping features and welding.

[0126] Reference Figure 17 The cable 188 passes through the first opening 310 of the two openings leading to the internal cavity 308, and the first opening 310 leading to the internal cavity 308 is sealed with, for example, a grommet seal 306. The second opening 314 of the two openings leading to the internal cavity 308 is sealed with, for example, an O-ring 302 and a second battery cover 288b.

[0127] Electrical contact 304 enters the outer cavity 300 from the inner cavity 308 to connect with battery 298. Battery 298 is held within the outer cavity 300 by a first battery cover 288a. The opening 316 of the outer cavity 300 is sealed, for example, by an O-ring 302 between the first battery cover 288a and the battery casing 286. When the individual battery cell 190 is held within the recess 290 in the housing 104 via a snap-fit ​​feature 292, the second battery cover 288b is held in place within the inner cavity 308 of the battery casing 386 via contact with the inner surface 317 and / or cover 122 of the housing 104.

[0128] Reference Figure 15The second battery cover 288b may include a protrusion 318 (e.g., an extension, rib, ridge, or offset) extending away from the second side 297 of the battery housing 286. Using the protrusion 318, the maximum height H of the battery housing 286 may be greater than the maximum depth of the recess 290 in the housing 104 between the cover 122 and the inner surface 317 of the housing 104. The second battery cover 288b may be deformable, and this dimensional difference may cause the second side 197 of the battery housing 286 to flex away from the inner surface 317 of the housing 104 when the individual battery cell 190 is mounted within the recess 290 in the housing 104. In other words, when the individual battery cell 190 is positioned within the recess 290 in the housing 104 and, for example, the snap-fit ​​feature 292 is engaged with the corresponding groove or slot 294, the protrusion 318 of the second battery cover 288b abuts against the inner surface 317 of the housing 104; when the cover 122 is attached to the housing 104 and pressed against the first battery cover 288a, force is transmitted through the battery casing 286, and the second battery cover 288b deforms. Therefore, the first battery cover 288a and the second battery cover 288b are held in place, and the electrical connection within the individual battery cell 190 is maintained.

[0129] Although certain control devices, bicycles, and methods have been described herein in accordance with the teachings of this disclosure, the scope of this patent is not limited thereto. Rather, this patent covers all embodiments of the teachings of this disclosure that clearly fall within the scope of permissible equivalents.

[0130] The descriptions of embodiments herein are intended to provide a general understanding of the structure of various embodiments. These descriptions are not intended as a complete description of all elements and features of devices and systems utilizing the structures or methods described herein. Many other embodiments will be apparent to those skilled in the art upon reading this disclosure. Other embodiments can be utilized and derived from this disclosure, allowing structural and logical substitutions and changes to be made without departing from the scope of this disclosure. Furthermore, the illustrations are representative only and may not be drawn to scale. Some scales in the illustrations may be exaggerated, while others may be minimized. Therefore, this disclosure and the accompanying drawings should be considered illustrative rather than restrictive.

[0131] While this specification contains numerous details, these should not be construed as limiting the scope of the invention or the scope of the claims, but rather as descriptions of features characteristic of particular embodiments of the invention. Certain features described in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments. Furthermore, although features may be described above as operating in certain combinations, and even initially claimed in this way, one or more features from a claimed combination may be removed from that combination in some cases, and the claimed combination may involve sub-combinations or variations thereof.

[0132] Similarly, although operations and / or actions are depicted in the accompanying drawings and described herein in a specific order, this should not be construed as requiring such operations to be performed in the specific order shown or in a sequential order, or requiring the execution of all shown operations to achieve the desired result. In some cases, multitasking and parallel processing may be advantageous. Furthermore, the separation of various system components in the above embodiments should not be construed as requiring such separation in all embodiments, and it should be understood that any described program components and systems can generally be integrated together in a single software product or packaged into multiple software products.

[0133] One or more embodiments of this disclosure may be referred to herein individually and / or collectively by the term "invention," for convenience only and not intended to actively limit the scope of this application to any particular invention or inventive concept. Furthermore, although specific embodiments have been shown and described herein, it should be understood that any subsequent arrangements designed to achieve the same or similar purpose may replace the specific embodiments shown. This disclosure is intended to cover any and all subsequent modifications or variations of the various embodiments. After reading this specification, combinations of the above embodiments, as well as other embodiments not specifically described herein, will be apparent to those skilled in the art.

[0134] An abstract of this disclosure is provided and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. Additionally, in the foregoing detailed description, various features may be grouped together or described in a single embodiment to facilitate the flow of this disclosure.

[0135] The foregoing detailed description should be considered illustrative rather than restrictive, and it should be understood that the claims, including all equivalents, are intended to define the scope of the invention. The claims should not be construed as limited to the described order or elements unless stated otherwise. Therefore, all embodiments within the scope and spirit of the appended claims and their equivalents are claimed as part of the invention.

Claims

1. A control device that can be mounted on the handlebars of a bicycle, the control device comprising: A housing having a recess; A rod, which is connected to the housing and is pivotable relative to the housing; The main cylinder section is supported by the housing; as well as The battery cell is located in the recess, below the main cylinder portion. The battery unit is an independent unit, which includes a battery casing, a first battery cover on a first side of the battery casing, and a second battery cover on a second side of the battery casing, with the first side and the second side opposite to each other. The first battery cover and the second battery cover are removable from the battery casing, and The battery cell includes electrical contacts, which are not located on the first battery cover or the second battery cover.

2. The control device according to claim 1, wherein, There is a battery socket on the first side of the battery casing.

3. The control device according to claim 2, wherein, The battery is configured to be received in the battery socket.

4. The control device according to claim 2, wherein, When the first battery cover is removed, the battery socket opens to the outside of the housing.

5. The control device according to claim 4, wherein, The second battery cover contacts the inner surface of the housing.

6. The control device according to claim 5, wherein, The second battery cover is a deformable cover.

7. The control device according to claim 6, wherein, The second battery cover includes a raised portion that flexes away from the inner surface of the housing.

8. The control device according to claim 1, wherein, The first battery cover and the second battery cover are full covers that isolate the first side and the second side from the environment.

9. The control device according to claim 8, wherein, The battery cell includes at least one seal.

10. The control device according to claim 1, wherein, The battery housing includes one or more outer surfaces and includes one or more attachment features that extend away from the one or more outer surfaces to attach the battery housing to the housing.

11. The control device according to claim 10, wherein, The housing includes one or more recesses, and the one or more attachment features are capable of engaging with the one or more recesses of the housing to retain the battery cell within the housing.

12. The control device according to claim 11, wherein, The one or more outer surfaces include an outer annular surface, and the one or more grooves include a plurality of grooves, wherein the one or more attachment features include a plurality of tabs extending away from the outer annular surface, the plurality of tabs being capable of engaging with the plurality of grooves respectively.

13. The control device according to claim 1, wherein, The battery unit is connected to the printed circuit board via a cable.

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