JP2016013770A - Brake device for bar-handle vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a brake device for a bar-handle vehicle, which when actuating a first brake interlockingly with a second brake by operating a second brake operator, can control braking force of the first brake with a simple structure.SOLUTION: A first brake operator 4 is formed by rotatably installing to a hydraulic master cylinder 9: a knocker 12 pushing a piston 11 of a hydraulic master cylinder 9; a first operation lever 10 pushing the piston 11 via the knocker 12; and a knocker pushing lever 13 connected with an interlock wire 19 which is pulled via an interlock mechanism 18 by operation of a second brake operator 5. The knocker pushing lever 13 is rotated around a pivot 17 by pulling of the interlock wire 19 to push the piston 11 via the knocker 12, and is equipped with an adjust bolt 22 which abuts against the hydraulic master cylinder 9 and regulate rotation beyond a preset rotation amount.

Description

  In the present invention, the hydraulic first brake is operated independently by operating the first brake operator, the second brake is operated by operating the second brake operator, and the first brake is operated in conjunction with the first brake operator. The present invention relates to a brake apparatus for a bar handle vehicle.

  2. Description of the Related Art Conventionally, a first brake operator for operating a hydraulic front wheel brake alone and a second brake operator for operating a mechanical rear wheel brake and the front wheel brake in conjunction via an interlocking mechanism are provided. In the bar handle vehicle brake device, as the first brake operator, a piston pushing member having an action arm for pushing the piston of the hydraulic master cylinder, and pushing the piston pushing member to move the piston Some were equipped with an operating lever that actuated. The piston pushing member is connected to traction means that is pulled through an interlocking mechanism by operation of a second brake operator, and the traction means and piston pushing member are connected by operation of the second brake operator. There are some which actuate the piston via. Further, the traction means has one end connected to the interlocking mechanism, and the other end connected to the piston pushing member via a control unit for controlling the braking force of the front wheel brake when the second brake operator is operated. (For example, refer to Patent Document 1).

Japanese Patent No. 3754514

  However, in the thing of patent document 1, a control part is connected with the cable holder which one end part is fastened with a master cylinder, and a piston pushing member, and the cable joint arrange | positioned so that contact / separation with respect to a cable holder is possible. And a spring member that biases the cable joint away from the cable holder, and the brake cable has an outer tube connected to the cable holder and an inner wire passing through the cable holder and connected to the cable joint. Therefore, the number of parts is increased and the number of assembling steps is increased, which increases the cost.

  Accordingly, the present invention provides a bar handle vehicle capable of controlling the braking force of the first brake with a simple structure when the first brake is operated in conjunction with the second brake by operating the second brake operator. The purpose is to provide a brake device for a vehicle.

  In order to achieve the above object, the brake apparatus for a bar handle vehicle according to the present invention operates the first hydraulic brake alone by operating the first brake operator, and the second brake by operating the second brake operator. In the bar handle vehicular brake device that operates and interlocks the first brake via an interlocking mechanism, the first brake operator presses a piston inserted in a cylinder hole of a hydraulic master cylinder. A knocker pusher in which a knocker having a moving working arm, an operation lever for pushing the piston through the knocker, and a traction means towed through the interlock mechanism by operation of the second brake operator are connected. A movable lever is pivotally supported on the hydraulic master cylinder by a pivot, and the knocker pushing lever is It is provided with a knocker pushing part that pivots about the pivot by pulling the means and pushes the knocker to actuate the piston, and abuts against the hydraulic master cylinder to exceed a preset turning amount. A rotation restricting portion for restricting the rotation of the knocker pushing lever is provided.

  Further, it is preferable that the first brake operator has an accommodation recess formed in a rotation base which is a center of rotation, and the knocker and the knocker push lever are arranged in the accommodation recess. Furthermore, it is preferable that the knocker and the knocker pushing lever are formed so that insertion holes for inserting the pivot are formed on the same axis.

  The pulling means includes an outer tube and an inner wire having a cylindrical portion at a tip, and an outer tube mounting bracket for mounting the outer tube is formed on a cylinder body of the hydraulic master cylinder, and the knocker pushing It is preferable that an inner wire mounting bracket provided with an accommodating portion for accommodating the cylindrical portion is formed on the moving lever. Further, between the outer tube mounting bracket and the inner wire mounting bracket, one end is mounted on a spring accommodating portion formed on the outer tube mounting bracket, and the other end is formed on a protrusion formed on the inner wire mounting bracket. It is preferable that the spring member to be locked is contracted.

  Further, it is preferable that the rotation restricting portion is formed by an adjusting bolt whose tip is in contact with the hydraulic master cylinder.

  According to the bar handle vehicle brake device of the present invention, the first brake operator is formed by pivotally supporting the knocker, the operation lever, and the knocker pushing lever by the pivot on the hydraulic master cylinder. A rotation restriction that couples to the knocker push lever with a pulling means that is pulled through an interlocking mechanism by the operation of the second brake operator, and abuts against the cylinder body to restrict the rotation of the knocker push portion. By providing the portion, the operation lever pushes the piston of the hydraulic master cylinder through the knocker by operating the first brake operator, and the first brake is operated independently. The operation activates the second brake and the traction means rotates the knocker pushing lever via the interlocking mechanism to push the piston via the knocker. It can be operated in conjunction with the first brake by.

  Further, the knocker push lever is provided with a rotation restricting portion that restricts the rotation of the knocker push lever from a preset rotation amount by contacting the hydraulic master cylinder. Thus, it is possible to control that the braking force of the first brake becomes greater than or equal to a preset braking force when the second brake operator is operated. In addition, since the rotation of the knocker push lever can be restricted with a simple structure, the number of parts can be reduced, and the cost can be reduced. Furthermore, when the first brake operator is operated, only the knocker is activated and the knocker push lever is not actuated. Therefore, the second brake operator connected to the knocker push lever is affected by vibration such as rattling. Never give.

  In addition, by forming an accommodation recess in the first brake operator and arranging the knocker and the knocker push lever so as to overlap each other, the knocker and the knocker push lever can be accommodated in a compact manner. Further, the knocker and the knocker push lever are formed so that the knocker and the knocker push lever are not rattled by forming the insertion hole through which the pivot is inserted on the same axis, and the assembling property can be improved. it can.

  Further, the traction means includes an outer tube and an inner wire having a cylindrical portion at the tip, and forms an outer tube mounting bracket for mounting the outer tube on the cylinder body of the hydraulic master cylinder, and a cylinder on the knocker push lever. By forming the inner wire mounting bracket having the accommodation hole for accommodating the portion, the inner wire can be satisfactorily pulled without rattling when the second brake operator is operated.

  Furthermore, between the outer tube mounting bracket and the inner wire mounting bracket, one end side was attached to a spring accommodating portion formed on the outer tube mounting bracket, and the other end side was locked to a protrusion formed on the inner wire mounting bracket. By contracting the spring member, it is possible to prevent the knocker pushing lever from rattling during the operation of the second brake operator, and to improve the assemblability.

  Further, the rotation restricting portion is formed by an adjusting bolt whose tip is in contact with the cylinder body of the hydraulic master cylinder, and by adjusting the protrusion amount of the adjusting bolt, It is possible to easily adjust the control of the braking force of one brake.

It is a top view of the 1st hydraulic master cylinder device showing an example of the present invention. It is a partial cross section bottom view of the 1st fluid pressure master cylinder device similarly. It is III-III sectional drawing of FIG. It is a side view of the 1st hydraulic master cylinder device showing one example of the present invention. It is VV sectional drawing of FIG. It is VI-VI sectional drawing of FIG. It is explanatory drawing of the brake device for bar handle vehicles which shows one example of this invention. It is explanatory drawing of the 1st hydraulic pressure master cylinder apparatus of the state which operated the 1st operation lever and act | operated the 1st brake independently. It is IX-IX sectional drawing of FIG. It is XX sectional drawing of FIG. It is explanatory drawing of the 1st hydraulic pressure master cylinder apparatus of the state which operated the 2nd operation lever and act | operated the 1st brake in response.

  FIG. 1 to FIG. 11 are views showing an embodiment of the bar handle vehicle brake device according to the present invention. As shown in FIG. 6, the bar handle vehicle brake device 1 of the present embodiment includes a front wheel brake 2 The first brake of the present invention, the rear wheel brake 3 (the second brake of the present invention), the first brake operator 4 that operates the front wheel brake 2 alone, the rear wheel brake 3, and the front wheel brake 2 And a second brake operator 5 that operates in conjunction with each other.

  The front wheel brake 2 uses a hydraulic disk brake in which a caliper body 2b having a piston is combined with a disk rotor 2a that rotates integrally with the front wheel, and a union hole (not shown) provided in the caliper body 2b. The hydraulic pipe 6 is connected. The rear wheel brake 3 has a pair of brake shoes 3b, 3b facing each other in a back plate 3a, and both brake shoes 3b, 3b are expanded in the manner that the anchor pin 3d is expanded as a fulcrum by rotation of the cam shaft 3c. The drum brake is applied, and a brake wire 7 is connected to a cam lever 3e having one end fixed to the cam shaft 3c.

  The first brake operator 4 includes a hydraulic master cylinder 9 attached to a handlebar 8 that steers the front wheel, a first operating lever 10 laid on the hydraulic master cylinder 9, and a cylinder of the hydraulic master cylinder 9. A knocker 12 for pushing the piston 11 inserted in the hole 9a and a knocker pushing lever 13 for turning the knocker 12 by the operation of the second brake operator 5 are provided.

  The hydraulic master cylinder 9 is disposed on the front side of the vehicle body by holding the handlebar 8 with a vehicle body mounting bracket 9b to the handlebar 8 and a holder 14, and fastening them with bolts 15. The cylinder body 9c is provided with the cylinder hole 9a that opens to the outside of the vehicle body. The piston 11 is movably inserted into the cylinder hole 9a, and a reservoir 9d is provided integrally with the cylinder body 9c. It has been. A hydraulic chamber 9e is defined between the bottom of the cylinder hole 9a and the piston 11, and a return spring 16 is contracted in the hydraulic chamber 9e. The reverse limit when the piston 11 is not operated is biased toward the opening of the hole 9 a and is regulated by the knocker 12. A union hole 9f is formed at the bottom of the cylinder hole 9a, and the hydraulic pipe 6 is connected to the union hole 9f.

  Further, the cylinder body 9c is provided with lever holders 9g, 9g that protrude in a pair of upper and lower sides, and the lever holders 9g, 9g are provided with a first operation lever 10, a knocker 12, and a knocker pushing lever 13 by a pivot 17. , Each of which is pivotably attached. Furthermore, an outer tube mounting bracket 9h to which an outer tube 19a of an interlocking wire 19 (traction means of the present invention) to be pulled via the interlocking mechanism 18 is connected to an end of the cylinder body 9c on the bottom side of the cylinder hole. It protrudes downward.

  The first operating lever 10 is disposed in front of the accelerator grip 20 in the vehicle body, and includes a first turning base 10b having a first insertion hole 10a for inserting the pivot 17, and the accelerator grip 20 from the first turning base 10b. The first turning base portion 10b is formed with a housing recess 10d for placing the knocker 12 therein. The housing recess 10d is provided with a first knocker contact portion 10e that contacts the receiving portion 12a of the knocker 12 and rotates the knocker 12 on the outer side of the vehicle body than the first insertion hole 10a. Also, an insertion hole 10f for the first spring member 21 is formed inside the vehicle body. The first spring member 21 has a coil portion 21a disposed on the outer periphery of the pivot 17, an insertion piece 21b that protrudes from one end of the coil portion 21a, and a tip that is inserted into the insertion hole 10f, and the other end of the coil portion 21a. And a contact piece 21c that protrudes and abuts against the side surface of the lever holder 9g. The first operating lever 10 is provided on the side opposite to the grip portion of the first rotation base 10b by the elastic force of the first spring member 21. The distal end portion 10g is biased in a direction in which it is pressed against the cylinder body 9c.

  The knocker 12 includes a substantially circular second rotation base 12b that can be accommodated in the accommodation recess 10d, and a receiving portion 12a that protrudes from the second rotation base 12b to the outside of the vehicle body and contacts the first knocker contact 10e. And an action arm 12c that protrudes from the second rotation base 12b toward the handlebar and abuts against the piston 11 to push the piston 11, and the second rotation base 12b includes a second for inserting the pivot 17. An insertion hole 12d is formed. A lever abutting portion 12e that abuts against the knocker pushing lever 13 is formed on the anti-piston side of the working arm 12c.

  The knocker push lever 13 includes a third turning base 13b having a third insertion hole 13a for inserting the pivot 17, a connecting arm 13c extending downward from the third turning base 13b, and a lower end of the connecting arm. And an inner wire mounting bracket 13d to which the inner wire 19b of the interlocking wire 19 is coupled, and a knocker pushing portion 13e that protrudes upward from the third rotation base portion 13b and contacts the lever contact portion 12e of the knocker 12. The connecting arm 13c is attached with an adjusting bolt 22 whose tip is in contact with the cylinder hole opening side end surface 9i of the cylinder body 9c and restricts the rotation of the knocker pushing lever 13. The inner wire 19b is attached to the inner wire mounting bracket 13d by being provided with a cylindrical portion 19c at the tip, and accommodating the cylindrical portion 19c in a housing portion 13g formed on the inner wire mounting bracket 13d.

  Further, the second spring member 23 is contracted between the inner wire mounting bracket 13d and the outer tube mounting bracket 9h formed on the cylinder body 9c. The second spring member 23 is attached by attaching one end portion to a spring accommodating portion 9j formed on the outer tube attachment bracket 9h and engaging the other end portion with a protrusion 13h formed on the inner wire attachment bracket 13d. Due to the elastic force of the second spring member 23, the distal end portion 13f on the side opposite to the connecting arm of the third rotation base portion 13b is urged in the direction in which it is pressed against the cylinder body 9c.

  The first insertion hole 10a formed in the first operating lever 10, the second insertion hole 12d formed in the knocker 12, and the third insertion hole 13a formed in the knocker pushing lever 13 are formed on the same axis, respectively. The second turning base portion 12b of the knocker 12 and the third turning base portion 13b of the knocker pushing lever 13 are arranged in the housing recess 10d so as to overlap each other, and the first insertion hole 10a, the second insertion hole 12d, and the third insertion hole. By mounting the pivot 17 over the hole 13a, the knocker 12 and the knocker pushing lever 13 are rotatably attached to the first operation lever 10.

  The second brake operator 5 includes an interlocking mechanism 18 attached to the handle bar 8 and a second operation lever 24 rotatably connected to a housing 18a of the interlocking mechanism 18. As the interlocking mechanism 18, for example, a well-known one in which an equalizer lever 18b is provided in a housing 18a is used. The equalizer lever 18b has an equalizer pulling wire 25 that is pulled at the center by the operation of the second operation lever 24. The brake wire 7 for operating the rear wheel brake 3 is connected to the part, and the interlocking wire 19 connected to the first brake operator 4 is connected to the other end part.

  In the bar handle vehicle brake device 1 formed as described above, when the first operation lever 10 of the first brake operation element 4 is operated, as shown in FIG. The receiving part 12 a of the knocker 12 is pressed, and the knocker 12 is rotated around the pivot 17. As a result, the action arm 12c of the knocker 12 pushes the piston 11, and the pressurized hydraulic fluid supplies the hydraulic pressure to the front wheel brake 2 via the hydraulic pressure pipe 6 to operate the front wheel brake 2 alone. At this time, the knocker pushing lever 13 maintains the initial state in which the tip end portion 13f is pressed against the cylinder body 9c by the elastic force of the second spring member 23.

  When the second operation lever 24 of the second brake operator 5 is operated, the equalizer pulling wire 25 pulls the equalizer lever 18b. The equalizer lever 18b is connected to the brake wire via the one end portion to which the brake wire 7 is connected while the other end portion to which the interlocking wire 19 is connected is maintained at the initial position by the elastic force of the second spring member 23. 7 is pulled. As a result, the brake wire 7 pulls the cam lever 3e and activates the rear wheel brake 3.

  When the second brake operator 5 is further operated, one end portion of the equalizer lever 18b is fixed by the reaction force from the rear wheel brake 3, and the equalizer is resisted against the elastic force of the second spring member 23. The interlocking wire 19 is pulled through the other end of the lever 18b. As a result, as shown in FIG. 9, when the inner wire mounting bracket 13 d of the knocker pushing lever 13 is pulled, the knocker pushing lever 13 rotates about the pivot 17, and the knocker pushing portion 13 e becomes the knocker 12. The lever abutting portion 12e is pressed, and the knocker 12 is rotated around the pivot 17. As a result, the working arm 12c of the knocker 12 pushes the piston 11, and the pressurized hydraulic fluid supplies hydraulic pressure to the front wheel brake 2 via the hydraulic pressure pipe 6 to operate the front wheel brake 2 in conjunction with each other. .

  As shown in FIG. 10, when the second brake operator 5 is operated more strongly, the adjustment bolt 22 provided on the knocker pushing lever 13 comes into contact with the cylinder hole opening side end surface 9i of the cylinder body 9c. The rotation of the knocker pushing lever 13 is restricted, and the braking force of the front wheel brake 2 is controlled. On the other hand, when the equalizer lever 18b is further pulled, the brake wire 7 is pulled through one end of the equalizer lever 18b, and the rear wheel brake 3 is operated.

  Since the present embodiment is formed as described above, the front wheel brake 2 is independently operated by the operation of the first brake operation element 4, and the front wheel brake 2 and the rear wheel are operated by the operation of the second brake operation element 5. The brake 3 can be operated in conjunction with it. Further, the knocker push lever 13 is provided with an adjusting bolt 22 that abuts on the cylinder body 9c of the hydraulic master cylinder 9 and restricts the rotation from a predetermined rotation amount. When the two-brake operator 5 is operated, it is possible to control that the braking force of the front wheel brake 2 becomes equal to or greater than a preset braking force. Furthermore, since the rotation of the knocker pushing lever 13 can be restricted with a simple structure, the number of parts can be reduced and the cost can be reduced. Furthermore, when the first brake operator is operated, only the knocker is activated and the knocker push lever is not actuated. Therefore, the second brake operator connected to the knocker push lever is affected by vibration such as rattling. Never give.

  In addition, by forming an accommodation recess in the first brake operator and arranging the knocker and the knocker push lever so as to overlap each other, the knocker and the knocker push lever can be accommodated in a compact manner. Furthermore, the knocker and the knocker pushing lever are operated without the backlash of the knocker and the knocker pushing lever by forming the second insertion hole and the third insertion hole through which the pivot is inserted on the same axis. Assembling can be improved. The interlocking wire includes an outer tube and an inner wire having a cylindrical portion at the tip, and forms an outer tube mounting bracket for mounting the outer tube on the cylinder body of the hydraulic master cylinder, and a knocker pushing lever. By forming the inner wire mounting bracket having the accommodation hole for accommodating the cylindrical portion, the inner wire can be satisfactorily pulled without rattling when the second brake operator is operated.

  Furthermore, between the outer tube mounting bracket and the inner wire mounting bracket, one end side was attached to a spring accommodating portion formed on the outer tube mounting bracket, and the other end side was locked to a protrusion formed on the inner wire mounting bracket. By contracting the spring member, it is possible to prevent the knocker pushing lever from rattling during the operation of the second brake operator, and to improve the assemblability. Further, by adjusting the protruding amount of the adjusting bolt 22, it is possible to adjust the restriction of the rotation amount of the knocker push lever 13, and control of the braking force of the front wheel brake 2 when the second brake operator 5 is operated. Adjustment can be performed easily.

  In addition, this invention is not restricted to the above-mentioned form example, The structure of an interlocking mechanism is arbitrary and the interlocking mechanism formed separately from the 2nd brake operation element can also be used. Further, the rotation restricting portion for restricting the rotation amount of the knocker pushing lever is not limited to the adjusting bolt, and may be a protrusion formed on the knocker pushing lever or the cylinder body. Further, the structure of the first brake is arbitrary as long as it is a hydraulic brake, and the structure of the second brake is also arbitrary. Furthermore, the second brake operator may be a brake pedal.

DESCRIPTION OF SYMBOLS 1 ... Bar-handle vehicle brake device, 2 ... Front wheel brake, 2a ... Disc rotor, 2b ... Caliper body, 3 ... Rear wheel brake, 3a ... Back plate, 3b ... Brake shoe, 3c ... Cam shaft, 3d ... Anchor pin, 3e ... cam lever, 4 ... first brake operator, 5 ... second brake operator, 6 ... hydraulic pipe, 7 ... brake wire, 8 ... handlebar, 9 ... hydraulic master cylinder, 9a ... cylinder hole, 9b ... Car body mounting bracket, 9c ... Cylinder body, 9d ... Reservoir, 9e ... Hydraulic chamber, 9f ... Union hole, 9g ... Lever holder, 9h ... Outer tube mounting bracket, 9i ... Cylinder hole opening side end surface, 9j ... Spring housing, DESCRIPTION OF SYMBOLS 10 ... 1st operation lever, 10a ... 1st insertion hole, 10b ... 1st rotation base, 10c ... grip part, 10d ... accommodation recessed part, 10e ... 1st Knocker contact part, 10f ... insertion hole, 10g ... tip part, 11 ... piston, 12 ... knocker, 12a ... receiving part, 12b ... second rotation base, 12c ... working arm, 12d ... second insertion hole, 12e ... Lever contact portion, 13 ... knocker pushing lever, 13a ... third insertion hole, 13b ... third rotating base, 13c ... connecting arm, 13d ... inner wire mounting bracket, 13e ... knocker pushing portion, 13f ... tip portion, 13g ... accommodating portion, 13h ... projection, 14 ... holder, 15 ... bolt, 16 ... return spring, 17 ... pivot, 18 ... interlocking mechanism, 18a ... housing, 18b ... equalizer lever, 19 ... interlocking wire, 19a ... outer Tube, 19b ... Inner wire, 20 ... Accelerator grip, 21 ... First spring member, 21a ... Coil part, 21b ... Insert piece, 21c ... Contact piece, 2 ... adjusting bolt, 23 ... second spring member, 24 ... second operating lever, 25 ... equalizer pull wire

Claims (6)

The hydraulic first brake is operated independently by operating the first brake operator, the second brake is operated by operating the second brake operator, and the first brake is operated in conjunction with the interlock mechanism. In the bar handle vehicle brake device to be
The first brake operator includes a knocker having an action arm that pushes a piston inserted in a cylinder hole of a hydraulic master cylinder, an operation lever that pushes the piston through the knocker, and the second A knocker push lever to which a pulling means to be pulled by the operation of the brake operator via the interlocking mechanism is coupled is pivotally supported on the hydraulic master cylinder by a pivot.
The knocker pushing lever rotates around the pivot by the pulling of the pulling means, and includes a knocker pushing portion that pushes the knocker to actuate the piston, and abuts against the hydraulic master cylinder. A bar handle vehicle brake device comprising a rotation restricting portion for restricting the rotation of the knocker pushing lever beyond a predetermined rotation amount.   2. The first brake operation element is characterized in that an accommodation recess is formed in a rotation base that is a center of rotation, and the knocker and the knocker push lever are arranged in the accommodation recess. The brake apparatus for bar handle vehicles as described.   3. The bar handle vehicle brake device according to claim 1, wherein the knocker and the knocker pushing lever are formed with coaxial insertion holes through which the pivot is inserted. 4.   The pulling means includes an outer tube and an inner wire having a cylindrical portion at a tip, and an outer tube mounting bracket for mounting the outer tube is formed on a cylinder body of the hydraulic master cylinder, and the knocker push lever The bar handle vehicle brake device according to any one of claims 1 to 3, wherein an inner wire mounting bracket having an accommodating portion for accommodating the cylindrical portion is formed.   Between the outer tube mounting bracket and the inner wire mounting bracket, one end is attached to a spring accommodating portion formed on the outer tube mounting bracket, and the other end is locked to a protrusion formed on the inner wire mounting bracket. The bar handle vehicle brake device according to claim 4, wherein the spring member is contracted.   The bar handle vehicle brake device according to any one of claims 1 to 5, wherein the rotation restricting portion is formed by an adjusting bolt whose tip is in contact with the hydraulic master cylinder.

Images