JP6243271B2 - Bar handle vehicle brake system - Google Patents

Description

  The present invention relates to a bar handle vehicle brake device that operates a first brake and a second brake in conjunction with each other.

  A bar handle vehicle having a brake device for each of the front wheels and the rear wheels has been put to practical use. 2. Description of the Related Art A bar handle vehicle brake device that operates a front wheel brake and a rear wheel brake in conjunction with any one of two brake operators provided on the bar handle is known (for example, Patent Document 1 (FIG. 1 See 2).).

  In the technique of this Patent Document 1, an interlocking member formed to extend in the left-right direction between two brake operators and a front wheel brake and a rear wheel brake is disposed. Two operator side brake cables are connected so as to extend upward from the interlocking member, and a front wheel side brake cable and a rear wheel side brake cable are connected so as to extend downward from the interlocking member. The two operator-side brake cables, the front wheel-side brake cable, and the rear wheel-side brake cable are divided and connected to the left and right of the interlocking member, so that one brake operator is operated and one operator-side brake is operated. When the cable is pulled, the interlocking member rotates, pulls the front wheel side brake cable and the rear wheel side brake cable, and the front wheel brake and the rear wheel brake operate in conjunction with each other.

  However, when the interlocking member rotates and moves upward, the other operator-side brake cable is bent, so that the other brake operator has a so-called play, which may impair the operation feeling.

Japanese Patent No. 3875406

  In the present invention, even if one of the two brake operators is operated, the first brake and the second brake are operated in conjunction with each other, and the other operation side connecting member is bent, so that the other brake operation is performed. It is an object of the present invention to provide a technique capable of suppressing the occurrence of so-called play in the child and improving the operation feeling.

  In the invention according to claim 1, the two brake operators provided on the bar handle of the vehicle, the first brake and the second brake provided on the vehicle, the two brake operators, and the first brake And two operation side linking members connected to the two brake operators, a first brake side linking member connected to the first brake, and the second brake, between the second brake and the second brake. A second brake-side linking member coupled to the two operation-side linking members, the first brake-side linking member, and the second brake-side linking member connected to the movable pulley. In the bar handle vehicle brake device having a mechanism interposed between the two brake operators and the first brake and the second brake, the two operation side connecting members are: The moving pulley is connected to be wound around the moving pulley so that the rotation directions of the moving pulley are different from each other, and one of the operation side linking members is pulled by the operation of one of the brake operation elements. The pulley pulls the first brake side connecting member and the second brake side connecting member while rotating to pull either the first brake side connecting member or the second brake side connecting member. And the first brake and the second brake are operated.

  In the invention according to claim 2, the respective distal ends of the two operation side linking members are coupled to the moving pulley, and are provided with rotation restricting means for restricting the rotation at a position where the moving pulley is rotated by a certain amount. The first slide and the second brake are slid in a direction in which the first brake and the second brake are operated while the rotation is regulated by a certain amount.

  The invention according to claim 3 is characterized in that the connection positions of the first brake side connecting member and the second brake side connecting member are arranged offset from the center of the moving pulley in the radial direction or the circumferential direction of the moving pulley. To do.

  In the invention according to claim 1, the two operation-side connecting members are connected so as to be wound around the movable pulley so that the rotational directions of the movable pulley at the time of towing are different from each other. When one brake operator is operated, the movable pulley slides while rotating, so even if one of the two brake operators is operated, the first brake and the second brake are operated in conjunction with each other. The In addition, since the other operation side linking member is wound around the movable pulley, the other operation side linking member is prevented from being bent, and the other brake operation element is prevented from generating so-called play to improve the operation feeling. can do.

  In the invention which concerns on Claim 2, each front-end | tip of two operation side connection members is couple | bonded with the movable pulley. Even if one of the operation side connecting members is cut, the other operation side connecting member maintains the state of being coupled to the movable pulley. Further, when the other operation side connecting member is pulled, rotation is restricted by the rotation restricting means when the moving pulley rotates by a certain amount, so that the moving pulley slides in the direction in which the mechanical brake is operated. As a result, the braking force of the brake can be obtained even when either one of the two operation side linking members is disconnected.

  In the invention which concerns on Claim 3, since the connection position of the 1st brake side connection member and the 2nd brake side connection member was offset and arranged in the radial direction or the circumferential direction from the center of a movable pulley, by changing a connection position The braking force distribution between the first brake and the second brake can be adjusted, and the first brake and the second brake can be operated with good balance. In addition, by changing the connection positions of the first brake-side linking member and the second brake-side linking member, it is possible to adjust the operation start timing of the other brake on the non-operation side.

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. FIG. 3 is an exploded perspective view of the interlocking mechanism shown in FIG. 2. 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 apparatus for bar handle vehicles when the operation side connection member of this invention cut | disconnects. It is explanatory drawing of another aspect of the interlocking mechanism shown in FIG.

  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 the first brake operation element 24 at the right end of the bar handle 23 so that the braking force of the first brake 26 is larger than the braking force of the second brake 27, and the bar handle 23 is an interlocking brake that is operated so that the braking force of the second brake 27 is greater than the braking force of the first brake 26 using the second brake operator 25 at the left end. In the embodiment, the first brake 26 and the second brake 27 are drum type brakes, but other types of brakes may be used.

  The first head pipe 16 is provided with an interlocking mechanism 40 that pulls both the first brake 26 and the second brake 27 in an interlocking manner. The interlocking mechanism 40 includes a first operation side linking member 31 pulled by operation of the first brake operator 24 and a second operation side linking member 32 pulled by operation of the second brake operator 25. Are connected.

  One end of the first brake side linking member 33 is connected to the interlocking mechanism 40, and the other end of the first brake side linking member 33 is connected to the first brake 26. One end of the second brake side connecting member 34 is connected to the interlocking mechanism 40, and the other end of the second brake side connecting member 34 is connected to the second brake 27.

  As described above, the bar handle vehicle brake device 30 includes the two operation side connecting members 31 and 32 between the two brake operators 24 and 25 and the first brake 26 and the second brake 27. The 1st brake side connection member 33, the 2nd brake side connection member 34, and the movable pulley 41 are provided.

  Most of the first operation side linking member 31 and the second operation side linking member 32 are respectively covered with the first outer tube 31a and the second outer tube 32a, and these first outer tubes 31a. The second outer tube 32 a is supported by the vehicle body 11.

  Most of the first brake-side linking member 33 and the second brake-side linking member 34 are covered with the first brake-side outer tube 33a and the second brake-side outer tube 34a, respectively. The 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 so as to be swingable. The first brake 26 is actuated when the first brake arm 35 is pulled by the first brake side connecting member 33. . 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, the first brake arm 35, 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. . 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, the second brake arm 37, A 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 interlocking mechanism 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 operation side linking member 31 pulled by the operation of the first brake operator 24 and the second operation side linking member 32 pulled by the operation of the second brake operator 25 are The moving pulley 41 is wound around the moving pulley 41 so that the rotation directions thereof are different from each other, 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 located below the center of the movable pulley 41. Further, one end of the first brake side linking member 33 and one end of the second brake side linking member 34 are connected to the movable pulley 41.

  A first connection member 33b is provided at one end of the first brake side linking member 33. The first connection member 33b can be swung by a nut 33d on a support portion 33c of the surface 41a of the movable pulley 41. Is attached. Similarly, a second connecting member 34b is provided at one end of the second brake side connecting member 34, and the second connecting member 34b is attached to the support portion 34c of the surface 41a of the movable pulley 41 by a nut 34d. It is attached so that it can swing.

  The connection position of the first connection member 33b is a position offset by a distance L1 in the radial direction from the center of the moving pulley 41, and the connection position of the second connection member 34b is in the radial direction from the center of the moving pulley 41. This is the position offset by the distance L2. The distance L1 and the distance L2 are set to be equal, and the connection positions of the first connection member 33b and the second connection member 34b are arranged so as to be line-symmetric with respect to the center of the movable pulley 41 in a front view. doing. As the movable pulley 41 moves, the first brake side connecting member 33 and the second brake side connecting member 34 are pulled. In the embodiment, L1 = L2, but the present invention is not limited to this. L1 <L2 or L1> L2 may be used, and the first brake 26 and the second brake 27 may be changed by changing the distance L1 and the distance L2. The braking force distribution can be adjusted. Furthermore, by changing the connection positions of the first brake side linking member 33 and the second brake side linking member 34, it is possible to adjust the operation start timing of the other brake on the non-operation side.

  When the first operation side linking member 31 or the second operation side linking member 32 is pulled, the movable pulley 41 moves in a direction to operate the first brake 26 and the second brake 27 while rotating, The first brake 26 and the second brake 27 are moved in a direction in which the first brake 26 and the second brake 27 are operated while the rotation is regulated by the rotation regulating means 51.

  As shown in FIGS. 3 and 4, the interlocking mechanism 40 is supported by a base portion 44 provided on the head pipe 16, rail support portions 45 and 45 provided on the base portion 44, and 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 inserted into the holes 45a, 45a, the 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.

  The interlocking mechanism 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 operation side linking member 31 or the second operation side linking member 32 is pulled, the movable pulley 41 operates the first brake 26 and the second brake 27 (see FIG. 2) while rotating. In the direction in which the first brake 26 and the second brake 27 are operated while the rotation is restricted by rotating by a certain amount and the pin 53 of the rotation restricting means 51 contacts the end of the arcuate groove 54. Moving.

  The coupling members 42 and 43 are coupled to the guide groove 55 of the movable pulley 41, respectively. Further, the movable pulley 41 is rotatably supported by the slider 47 by fastening the nut 57 to the threaded portion of the shaft 48 provided in the slider 47.

  As shown in FIGS. 1 to 4, the bar handle vehicle brake device 30 has two operation side connecting members 31 and 32 wound around the moving pulley 41 so that the rotational directions of the moving pulley 41 during towing are different from each other. Connected to hang. Then, when one of the operation side linking members 31 and 32 is pulled by the operation of one of the brake operation elements 24 and 25, the movable pulley 41 has the first brake side linking member 33 and the second brake side linking member 34. The first brake 26 and the second brake 27 are operated by sliding so as to pull the first brake side connecting member 33 and the second brake side connecting member 34 while rotating to pull either one.

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 operating side connecting member 31 is pulled in the direction of the arrow (2). The moving pulley 41 moves upward as indicated by an arrow (4) while rotating as indicated by an arrow (3).

  As shown in FIG. 5B, the moving amount of the movable pulley 41 is S1, and the rotation angle is α. The support portion 33 c, which is a connection point of the first brake side linking member 33, relatively moves above the shaft 48 that is the center of the movable pulley 41. The first brake side linking member 33 is pulled by the amount of relative movement with respect to the shaft 48 in addition to the movement amount S1 of the movable pulley 41 as indicated by an arrow (5).

  The support portion 34 c that is a connection point of the second brake side linking member 34 moves relatively below the shaft 48 that is the center of the movable pulley 41. The second brake side connecting member 34 is pulled by subtracting the downward relative movement amount with respect to the shaft 48 from the movement amount S1 of the movable pulley 41 as indicated by an arrow (6).

  When the first brake side connecting member 33 is pulled as shown by the arrow (5), the first brake 26 is operated, and when the second brake side connecting member 34 is drawn as shown by the arrow (6), The second brake 27 is activated. At this time, since the second operation side linking member 32 is wound around the movable pulley 41, the second operation side 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.

  Similarly, when the second brake operator 25 is operated, the second brake side linking member 34 is pulled by the amount of relative movement with respect to the shaft 48 in addition to the movement amount S1 of the movable pulley 41. The first brake side linking member 33 is pulled by subtracting the downward relative movement amount with respect to the shaft 48 from the movement amount S1 of the movable pulley 41.

  As described above, when one of the first brake operator 24 and the second brake operator 25 is operated, the first pulley 26 and the second brake 27 are moved by sliding the movable pulley 41 while rotating. While operating in conjunction with each other, the other (non-operating side) operation side linking members 31 and 32 of the first brake operation element 24 or the second brake operation element 25 are configured so that the moving pulley 41 rotates to make the moving pulley. It is wound around 41. As a result, it is possible to suppress the occurrence of so-called play (deflection) in the operation side connecting members 31 and 32, and to improve the operation feeling.

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 (7), the first operation side connecting member 31 is pulled, and the movable pulley 41 is moved as indicated by the arrow (8). Rotate like so. Even if the second operation side linking member 32 is cut, the movable pulley 41 has the insertion portion 47b of the initial position restricting means 61 abutting against the rail support portion 45 as shown in FIG. 6 (b). As a result, the initial position in the vertical direction is restricted, so that it does not move downward from the initial position.

  As described above, even when either the first operation side connection member 31 or the second operation side connection member 32 is cut, the movement of the movable pulley 41 is restricted at the initial position. It is possible to prevent the member 33 from being bent.

  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 (9), the movable pulley 41 moves as indicated by an arrow (10) 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. 6 (e), with the movement of the movable pulley 41, the first brake side connecting member 33 is pulled as shown by an arrow (11), and the first brake 26 (see FIG. 2) is operated. The second brake side connecting member 34 is pulled as shown by the arrow (12), and the second brake 27 is operated. The slider 47 slides on top of the rail member 46 as shown in FIG.

  As described above, the first operation side linking member 31 and the second operation side linking member 32 are coupled to the movable pulley 41 by the coupling members 42 and 43, respectively. Even if one of the connecting member 31 or the second operation side connecting member 32 is cut, the other is coupled to the movable pulley 41. For this reason, when the other of the 1st operation side connection member 31 or the 2nd operation side connection member 32 is pulled, rotation after a fixed amount rotation of the movable pulley 41 is controlled, and the 1st brake which is a mechanical brake 26 and the second brake 27 can be slid in the operating direction. As a result, even when any one of the first operation side linking member 31 and the second operation side linking member 32 is cut, a braking force can be obtained.

Next, adjustment of braking force distribution between the first brake 26 and the second brake 27 will be described.
As shown in FIG. 7A, in the interlocking mechanism 40, the connection position of the first connection member 33b is offset from the center of the movable pulley 41 by a distance L3 in the radial direction and is circumferential in the horizontal direction as a reference. The position is moved by an angle θ1. The connection position of the second connection member 34b is a position that is offset from the center of the movable pulley 41 by a distance L4 in the radial direction and moved by an angle θ2 in the circumferential direction with respect to the horizontal direction. The distance L3 is longer than the distance L4, and the angle θ1 is set larger than the angle θ2. The distance L3 may be set shorter than the distance L4, and the angle θ1 may be set smaller than the angle θ2. The first brake 26 and the second brake 27 may be changed by changing the distance L3, the distance L4, the angle θ1, and the angle θ2. The braking force distribution can be adjusted.

  Further, as shown in FIG. 7B, the connection positions of the first connection member 33b and the second connection member 34b are symmetrical with respect to the center of the movable pulley 41 in a front view. It may be arranged and offset from the center of the moving pulley 41 by a distance L5 in the radial direction, and the distance L5 may be set smaller than the distance L3 and the distance L4.

  The braking force distribution of the brake is adjusted according to the connection position of the brake side connecting members 33 and 34. For this reason, the distribution of the braking force can be easily set by adjusting the distance between the connection position of the first brake side linking member 33 and the connection position of the second brake side linking member 34 to the movable pulley 41. In addition, by changing the connection position of the brake side connecting members 33 and 34, it is possible to adjust the operation start timing of the other brake on the non-operation side.

  In addition, although the case where the 2nd operation side connection member 32 cut | disconnected was demonstrated in embodiment, even if it is the case where the 1st operation side connection member 31 cut | disconnects, it is the 1st brake 26 and 2nd. The brake 27 is activated. 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.

  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 (machine) Type brake), 30 ... bar handle vehicle brake device, 31 ... first operation side connecting member, 32 ... second operation side connecting member, 33 ... first brake side connecting member, 34 ... second brake side connecting member , 40 ... interlocking mechanism, 41 ... moving pulley, 51 ... rotation restricting means.

Claims (3)

Two brake operators provided on the bar handle of the vehicle;
A first brake and a second brake provided in the vehicle;
Between the two brake operators, the first brake and the second brake, two operation side connecting members connected to each of the two brake operators;
A first brake side connecting member connected to the first brake;
A second brake side connecting member connected to the second brake,
A movable pulley to which the two operation side linking members, the first brake side linking member, and the second brake side linking member are connected is provided in an interlocking mechanism, and the interlocking mechanism is provided with the two brake operation elements and the first In the brake device for a bar handle vehicle interposed between the brake and the second brake,
The two operation side connecting members are connected so as to be wound around the moving pulley so that rotation directions of the moving pulley at the time of towing are different from each other,
One of the operation side linking members is pulled by the operation of one of the brake operators, so that the movable pulley pulls either the first brake side linking member or the second brake side linking member. The bar handle vehicle is characterized in that the first brake side connecting member and the second brake side connecting member slide to pull the first brake side connecting member and the second brake side actuating while rotating. Brake device. The bar handle vehicle brake device according to claim 1,
Each tip of the two operation side connecting members is coupled to the movable pulley,
Rotation restricting means for restricting rotation at a position where the movable pulley has rotated a certain amount is provided,
The bar handle vehicle brake device according to claim 1, wherein the movable pulley slides in a direction in which the first brake and the second brake are operated while the rotation of the movable pulley is restricted by a predetermined amount. The bar handle vehicle brake device according to claim 1 or 2,
A bar handle vehicle characterized in that the connection positions of the first brake side connecting member and the second brake side connecting member are offset from the center of the moving pulley in the radial direction or the circumferential direction of the moving pulley. Brake device.

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