JP6243272B2 - Bar handle vehicle brake system - Google Patents

Description

  The present invention relates to a brake apparatus for a bar handle vehicle.

  At least one of the front wheel brake and the rear wheel brake is a mechanical brake, and one of the two brake operators operates either the front wheel or the rear wheel alone, and the other of the two brake operators. Is known as a bar-handle vehicle brake device that operates in conjunction with both front and rear wheel brakes (see, for example, Patent Document 1 (FIG. 2)).

  In the technique of Patent Document 1, a wire is wound around a pulley, one end of the wire is connected to one brake lever, and the other end of the wire is connected to a cam lever of a front wheel brake. When one of the brake levers is operated, the wound wire is pulled to operate the front wheel brake, and the rear wheel brake is also operated by moving the pulley.

  However, the wire may be cut depending on the state of use, and in the technique of Patent Document 1, either one brake lever or the other brake lever is operated only by cutting one place of the wire wound around the pulley. However, the braking force of the rear wheel brake cannot be obtained. As a countermeasure against this, even if a wire connected to one brake lever is cut, a technique for operating a rear wheel brake by operating the other brake lever is known (for example, Patent Document 2 (FIG. 5). )reference.).

  In the technique of Patent Document 2, an interlock brake cable is connected to the right brake lever, and an input brake cable is connected to the left brake lever. The interlocking device to which the interlocking brake cable and the input brake cable are connected is composed of a sprocket and an operating force distribution lever arranged in the casing. Even if the interlocking brake cable is disconnected, the rear wheel brake can be operated because the input brake cable is connected to the output brake cable via the operating force distribution lever in the interlocking device.

  However, in the technique of Patent Document 2, a space for arranging the sprocket and the operating force distribution lever in the casing is required, and the casing of the interlocking device becomes large.

JP 56-67681 A Japanese Patent No. 4676290

  The present invention can obtain the braking force of the brake even when any one of the connecting members connected to the first brake operator or the connecting members connected to the second brake operator is cut off. An object of the present invention is to provide a bar handle vehicle brake device that can be reduced in size.

  In the invention according to claim 1, the first brake operator and the second brake operator provided on the bar handle of the vehicle, and the mechanical brake in which one of the first brake and the second brake is pulled by the connecting means. In the brake apparatus for a bar handle vehicle having the above structure, the linking means is provided with a moving pulley and a rotation restricting means for restricting the rotation of the moving pulley to a constant amount, and is pulled by operating the first brake operator. The first connecting member to be pulled and the second connecting member to be pulled by the operation of the second brake operator are wound around the moving pulley so that the rotation directions of the moving pulley at the time of towing are different from each other. A brake side linking member to which the leading ends of the two are coupled and pulled by the movement of the movable pulley is connected to the mechanical brake, and the first linking member or the second linking portion When the pulley is pulled, the movable pulley moves in the direction in which the mechanical brake is operated while rotating, and operates the mechanical brake while rotating by a certain amount and being restricted in rotation by the rotation restricting means. It moves in the direction to make it move.

  The invention according to claim 2 is characterized in that the linking means includes an initial position regulating means for regulating the initial position of the movable pulley.

According to the first aspect of the present invention, when one brake operator is operated, the mechanical brake is activated by being pulled by one connecting member and sliding while the movable pulley rotates. Since the first connecting member and the second connecting member are wound around the moving pulley so that the rotational directions of the moving pulley are different from each other and their respective ends are coupled, even if one connecting member is cut, the other This connecting member maintains the state of being coupled to the movable pulley. Further, when the other connecting member is pulled, rotation of the moving pulley is restricted by the rotation restricting means when the moving pulley is rotated by a certain amount. As a result, even when any one of the connecting members connected to the first brake operator or the connecting members connected to the second brake operator is cut off, the braking force of the brake can be obtained.
In addition, since a separate operating force distribution lever as in the prior art is not required, the bar handle vehicle brake device of the present invention can be miniaturized.

  In the invention according to claim 2, the linking means includes an initial position restricting means for restricting the initial position of the movable pulley. Even if any of the connecting members connected to the brake operator is cut, the movement of the movable pulley is restricted by the initial position restricting means, so that the brake side connecting member can be prevented from being bent.

It is a side view of the vehicle which employ | adopted the brake device for bar handle vehicles of this invention. It is the schematic of the brake device for bar handle vehicles of the present invention. It is a disassembled perspective view of the connection means shown in FIG. FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. It is an operation view of the brake device for a bar handle vehicle at the normal time of the present invention. It is an effect | action figure of the brake device for bar handle vehicles when the connection member of this invention cut | disconnects.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in FIG. 1, the left side of FIG.

First, the outline | summary of the Example of this invention is demonstrated based on drawing.
As shown in FIGS. 1 and 2, the vehicle 10 is a scooter-type bar handle vehicle, and is raised to a low floor step floor 12 provided in the vehicle body 11 and the vehicle body front side of the step floor 12. A leg shield 13, a rear body 14 formed continuously on the rear side of the vehicle body of the step floor 12, and a seat 15 disposed on the upper surface of the rear body 14.

  A front fork 17 is rotatably supported by the head pipe 16 inside the leg shield 13, and a front wheel 18 is pivotally supported at the lower end of the front fork 17. A power unit 21 is supported via a rear suspension 20 below the rear portion of the main frame 19 covered with the rear body 14, and a rear wheel 22 is pivotally supported at the rear end of the power unit 21.

  The power unit 21 is integrated with an engine, a speed reducer, and a power transmission mechanism that transmits power to the rear wheels 22. The front end of the power unit 21 is supported by the main frame 19 so as to be swingable in the vehicle body vertical direction, and the rear upper side of the power unit 21 is connected to the rear suspension 20.

  A bar handle 23 for steering the front wheel 18 is attached to the upper end of the front fork 17. A first brake operator 24 and a second brake operator 25 are provided at both ends of the bar handle 23.

  A first brake 26 as a mechanical brake 26 is accommodated in the wheel 18 a of the front wheel 18, and a second brake 27 as a mechanical brake 27 is accommodated in the wheel 22 a of the rear wheel 22. The bar handle vehicle brake device 30 uses a single brake that operates the first brake 26 using the first brake operator 24 at the right end of the bar handle 23 and a second brake operator 25 at the left end of the bar handle 23. It consists of a combination with an interlocking brake that operates both the first brake 26 and the second brake 27. In the embodiment, the first brake 26 is a drum type brake, but other types of brakes may be used.

  The first head pipe 16 is provided with linking means 40 that pulls either the first brake 26 or the second brake 27. The linking means 40 is connected to the first linking member 31 pulled by the operation of the first brake operator 24 and the second linking member 32 pulled by the operation of the second brake operator 25.

  In addition, one end of the first brake side connecting member 33 is connected to the connecting means 40, and the other end of the first brake side connecting member 33 is connected to the first brake 26. One end of a second brake side linking member 34 is connected to the second linking member 32 via a locking member 39, and the other end of the second brake side linking member 34 is connected to the second brake 27. . The locking member 39 locks the second brake-side linking member 34 to the second linking member 32, and the second linking member 32 and the second brake-side linking are operated by the operation of the second brake operator 25. The member 34 is united and pulled.

  Most of the first linking member 31 and the second linking member 32 are covered with the first outer tube 31a and the second outer tube 32a, respectively. The first outer tube 31a and the second outer tube are covered with the first outer tube 31a and the second outer tube 32a, respectively. 32 a is supported by the vehicle body 11. Most of the first brake side connecting member 33 and the second brake side connecting member 34 are covered with the first brake side outer tube 33a and the second brake side outer tube 34a, respectively. The first brake side outer tube 33 a and the second brake side outer tube 34 a are supported by the vehicle body 11.

  The first brake 26 is provided with a first brake arm 35 that can swing. The first brake arm 35 is pulled by the first brake-side connecting member 33, so that the first brake 26 is activated. To do. The first brake 26 is provided with a projecting first wire bracket 26 a that holds the first brake side connecting member 33 connected to the first brake arm 35, and the first wire bracket 26 a and the first brake arm 35 are provided. The first lever return spring 36 is contracted between the two. The first brake arm 35 is always biased in the non-operating direction by the first lever return spring 36.

  A second brake arm 37 is swingably provided on the second brake 27, and the second brake 27 is actuated when the second brake arm 37 is pulled by the second brake side connecting member 34. To do. The second brake 27 is provided with a projecting second wire bracket 27 a that holds the second brake-side connecting member 34 connected to the second brake arm 37, and the second wire bracket 27 a and the second brake arm 37 are provided. The second lever return spring 38 is contracted between the two. The second brake arm 37 is always urged in the non-operating direction by the second lever return spring 38.

  The linking means 40 includes a moving pulley 41 and a rotation restricting means 51 that restricts the rotation of the moving pulley 41 to a certain amount. The first linkage member 31 towed by the operation of the first brake operator 24 and the second linkage member 32 towed by the operation of the second brake operator 25 have the rotational directions of the movable pulley 41 during towing mutually. It is wound around the moving pulley 41 in a different manner, and the respective leading ends thereof are coupled by the coupling members 42 and 43.

  In a state where the first brake operator 24 and the second brake operator 25 are not operated, the coupling members 42 and 43 are positioned below the center of the movable pulley 41. One end of the first brake side linking member 33 is connected to the center of the movable pulley 41. The first brake side connecting member 33 is pulled by the movement of the movable pulley 41.

  When the first linkage member 31 or the second linkage member 32 is pulled, the movable pulley 41 moves in the direction in which the first brake 26 is operated while rotating, and is rotated by a predetermined amount and rotated by the rotation regulating means 51. Is moved in the direction in which the first brake 26 is actuated.

  As shown in FIGS. 3 and 4, the linking means 40 includes a base portion 44 provided on the head pipe 16, rail support portions 45 and 45 provided on the base portion 44, and support on these rail support portions 45 and 45. Round bar-shaped rail members 46, 46, a slider 47 movably supported by these rail members 46, 46, a shaft 48 provided on the slider 47, and a shaft 49 that is rotatable via a bearing 49. And a movable pulley 41.

  The back surface 47a of the slider 47 is provided with insertion portions 47b, 47b, 47b, 47b through which the rail members 46, 46 are inserted. Since the rail members 46 and 46 are bolts having a threaded end portion and do not require special processing, the cost of parts of the rail members 46 and 46 can be reduced.

  The rail support portions 45, 45 are formed with holes 45a, 45a, 45a, 45a through which the rail members 46, 46 are inserted. The insertion portions 47b, 47b, 47b, 47b of the slider 47 are disposed between the two rail support portions 45, 45, and the rail members 46, 46 are provided with holes 45a, 45a, insertion portions 47b, 47b, 47b, 47b and By inserting the holes 45a and 45a in this order and fastening the nuts 52 and 52, the slider 47 is movably supported by the rail members 46 and 46.

  In the longitudinal direction of the rail member 46, since the distance between the two insertion portions 47b, 47b of the slider 47 is smaller than the distance between the two rail support portions 45, 45, the slider 47 and the movable pulley 41 are It becomes possible to move along the longitudinal direction of the rail member 46.

  Further, the connecting means 40 includes an initial position restricting means 61 for restricting the initial position of the movable pulley 41. The initial position regulating means 61 includes a lower rail support part 45 and lower insertion parts 47b and 47b. The lower surfaces 47c and 47c of the lower insertion portions 47b and 47b abut on the upper surface 45b of the lower rail support portion 45, whereby the initial positions of the slider 47 and the movable pulley 41 are restricted.

  The rotation restricting means 51 includes a pin 53 provided on the surface 47 d of the slider 47 and an arcuate groove 54 formed in the movable pulley 41. The arc-shaped groove 54 is formed along the locus of the pin 53 when the movable pulley 41 is rotated. When the first linkage member 31 or the second linkage member 32 is pulled, the movable pulley 41 moves in the direction in which the first brake 26 (see FIG. 2) is operated while rotating, and rotates a certain amount. When the pin 53 of the rotation restricting means 51 abuts against the end of the arc-shaped groove 54, the rotation is restricted, and the first brake 26 is moved in the operating direction.

  The coupling members 42 and 43 are coupled to the guide groove 55 of the movable pulley 41, respectively. A connecting member 56 is provided at one end of the first brake side connecting member 33, and the shaft 48 is inserted into the hole 56 a of the connecting member 56, and the nut 57 is fastened to the threaded portion of the shaft 48. 1 brake side connecting member 33 is connected to the movable pulley 41.

The operation of the bar handle vehicle brake device 30 described above in the normal state will be described.
As shown in FIG. 5A, when the first brake operator 24 is operated as indicated by the arrow (1), the first connecting member 31 is pulled in the direction of the arrow (2). The movable pulley 41 moves upward while rotating as indicated by an arrow (3), and the first brake 26 is actuated by the first brake side connecting member 33 being pulled as indicated by an arrow (4). At this time, since the second linking member 32 is wound around the movable pulley 41, the second linking member 32 is not bent and so-called play does not occur in the second brake operator 25. The pin 53 moves relative to the arcuate groove 54.

  As shown in FIG. 5B, when the second brake operator 25 is operated as indicated by the arrow (5), the second pulling member 32 is pulled in the direction of the arrow (6). The movable pulley 41 moves upward while rotating as indicated by an arrow (7), and the first brake 26 is actuated by the first brake side connecting member 33 being pulled as indicated by an arrow (8). Further, the second brake side connecting member 34 is also pulled as shown by the arrow (9), and the second brake 27 is operated. At this time, since the first interlocking member 31 is wound around the movable pulley 41, the first connecting member 31 does not bend, and so-called play does not occur in the first brake operator 24. The pin 53 moves relative to the arcuate groove 54.

  Thus, when one of the first linking member 31 and the second linking member 32 is operated, the other of the first linking member 31 and the second linking member 32 is wound around the movable pulley 41. The connecting member does not bend, so that the so-called play can be prevented and the operation feeling can be improved.

Next, the operation of the bar handle vehicle brake device 30 when the traction member is cut will be described.
As shown in FIG. 6A, when the first brake operator 24 is operated as indicated by an arrow (10), the first connecting member 31 is pulled, and the movable pulley 41 rotates as indicated by an arrow (11). . Even if the second connecting member 32 is cut, the movable pulley 41 has the insertion portion 47b of the initial position restricting means 61 in contact with the rail support portion 45 as shown in FIG. Since the initial position in the vertical direction is restricted, it does not move downward from the initial position.

  Thus, even when one of the first linking member 31 and the second linking member 32 is cut, the movement of the movable pulley 41 is restricted at the initial position, so that the first brake side linking member 33 bends. This can be prevented.

  As shown in FIG. 6C, after the movable pulley 41 rotates by a certain amount, rotation is restricted by the pin 53 of the rotation restricting means 51 coming into contact with the end of the arcuate groove 54. When the first brake operator 24 is further operated as indicated by an arrow (12), the movable pulley 41 moves as indicated by an arrow (13) in a state where the rotation is restricted. The slider 47 slides upward along the rail member 46 as shown in FIG.

  As shown in FIG. 6E, with the movement of the movable pulley 41, the first brake side connecting member 33 is pulled as shown by an arrow (14), and the first brake 26 (see FIG. 2) is operated. To do. The slider 47 slides on top of the rail member 46 as shown in FIG.

  Thus, since the 1st connection member 31 and the 2nd connection member 32 are each couple | bonded with the movable pulley 41 by the coupling members 42 and 43, the 1st connection member 31 or the 2nd connection member 32 is temporarily. Even if one of them is cut, the other is connected to the movable pulley 41. For this reason, when the other of the first linkage member 31 or the second linkage member 32 is pulled, rotation after a certain amount of rotation of the movable pulley 41 is restricted, and the first brake 26 that is a mechanical brake is activated. Can be slid. As a result, even when either one of the first connecting member 31 and the second connecting member 32 is cut, a braking force can be obtained. Furthermore, separate parts such as an operating force distribution lever are not required, and the bar handle vehicle brake device 30 can be reduced in size.

  In addition, although the case where the 2nd connection member 32 cut | disconnected was demonstrated in embodiment, even if it is the case where the 1st connection member 31 cut | disconnects, the 1st brake 26 is act | operated similarly. The front wheel brake is the first brake 26 and the rear wheel brake is the second brake 27. However, the present invention is not limited to this, and the front and rear wheels may be reversed. Although the first brake 26 and the second brake 27 are both mechanical brakes, the present invention is not limited to this. For example, a hydraulic brake may be employed by providing a mechanism that converts traction force into hydraulic pressure.

  The vehicle brake device of the present invention is suitable for a bar handle vehicle.

  DESCRIPTION OF SYMBOLS 10 ... Vehicle (bar handle vehicle), 23 ... Bar handle, 24 ... First brake operator, 25 ... Second brake operator, 26 ... First brake (mechanical brake), 27 ... Second brake, 30 ... Bar Handle vehicle brake device, 31 ... first connecting member, 32 ... second connecting member, 33 ... first brake side connecting member, 34 ... second brake side connecting member, 40 ... connecting means, 41 ... dynamic pulley, 51: Rotation restricting means, 61: Initial position restricting means.

Claims (2)

For a bar handle vehicle comprising a first brake operator and a second brake operator provided on a bar handle of a vehicle, and a mechanical brake in which one of the first brake and the second brake is pulled by a connecting means In the brake system,
The linking means includes a moving pulley and a rotation restricting means for restricting the rotation of the moving pulley to a certain amount.
The first connecting member pulled by the operation of the first brake operator and the second connecting member pulled by the operation of the second brake operator are different from each other in the rotation direction of the movable pulley during towing. Are wound around the movable pulley and their respective tips are combined,
A brake side linking member pulled by the movement of the movable pulley is connected to the mechanical brake,
When the first linkage member or the second linkage member is pulled, the movable pulley moves in a direction in which the mechanical brake is operated while rotating, and is rotated by a predetermined amount and rotated by the rotation restricting means. The bar-handle vehicle brake device moves in a direction in which the mechanical brake is operated while being restricted. The bar handle vehicle brake device according to claim 1,
The bar handle vehicle brake device, wherein the linking means includes an initial position restricting means for restricting an initial position of the movable pulley.

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