JP2014061738A - Brake device for handlebar vehicle - Google Patents

Abstract

The first brake is operated independently by the operation of the brake operator for the first brake, and the first brake is operated by the operation of the brake operator for the second brake. Operate both the second brakes in conjunction.
An interlock mechanism 7 includes a rotating member 11 interposed between a first brake wire 10 connected to a first brake operation element 3 and a hydraulic master cylinder 8 for operating a front wheel brake 5; A slide member 14 interposed between a second brake wire 12 connected to the wheel brake operation element 4 and a third brake wire 13 connected to the rear wheel brake 6 is provided. When the slide member 14 is slid by the braking operation of the rear wheel brake operator 4, the slide member 14 rotates the rotating member 11 in a direction in which the hydraulic master cylinder 8 is operated to brake the front wheel brake 5. The rotation member 11 includes a cam portion 14b and a contact portion 11e that contacts the cam portion 14b.
[Selection] Figure 1

Description

  The present invention relates to a brake device for a bar handle vehicle. More specifically, the first brake is operated independently by the operation of a first brake operation element, and the first brake is operated by the operation of a second brake operation element. The present invention relates to a brake device for a bar handle vehicle having a structure in which both the first and second brakes are operated in conjunction with each other.

  Conventionally, as a brake device for a bar handle vehicle, by operating the first brake operator, the hydraulic first brake is operated via the master cylinder unit, and by operating the second brake operator, There are some which operate the first brake and the mechanical second brake via the master cylinder unit. As this master cylinder unit, there are provided four rotating levers of a first rotating lever, a second rotating lever, a knocker, and an equalizer lever, and the first rotating lever is rotated by the operation of the operating element for the first brake. And the second rotating lever actuate the first brake, and the second rotating lever, the knocker and the equalizer lever which are rotated by the operation of the second brake operation element, the first brake and the second brake Some have been activated (for example, see Patent Document 1).

Japanese Patent No. 4532753

  However, in the thing of the above-mentioned patent document 1, the master cylinder unit is provided with four rotation levers, a first rotation lever, a second rotation lever, a knocker, and an equalizer lever. The number of points was large, and it took time and labor to assemble each part, and the cost was high.

  Therefore, the present invention uses a simple structure interlocking mechanism to operate the first brake by operating the brake operator for the first brake, and to operate the first brake by operating the brake operator for the second brake. It is an object of the present invention to provide a bar handle vehicle brake device that can operate both a brake and a second brake in conjunction with each other.

  In order to achieve the above object, a brake apparatus for a bar handle vehicle according to the present invention includes a first brake, a second brake, a first brake operator, a second brake operator, and a second brake operator brake. In the bar handle vehicle brake device including an interlocking mechanism for transmitting an operation to the first brake and the second brake, the interlocking mechanism includes a single-system brake connecting unit connected to the first brake operator and the A rotating member interposed between the first brake operating means for operating the first brake, an interlocking brake connecting means connected to the second brake operating element, and the second brake A slide member interposed between the second brake linkage means, and the slide member is linked to the interlocking brake by a braking operation of the second brake operator. A cam portion having a cam surface for rotating the rotating member in a direction in which the first brake actuating means is actuated to actuate the first brake when pulled by the step and slid; The moving member includes a contact portion that contacts the cam portion.

  Furthermore, it is preferable that the rotating member and the slide member are accommodated in one housing. Further, the slide member includes a rolling member at a portion facing the cam portion, and is supported by a support surface that supports the slide member so as to be linearly movable via the rolling member. It is preferable.

  The cam portion includes an inclined surface or a curved surface for rotating the rotating member, and a first flat surface portion formed on the cam brake connecting means side of the cam surface. And a second flat portion formed on the cam surface on the second brake connecting means side. Further, the contact portion of the rotating member is in a position to contact the first flat surface portion when the second brake operation element is in a non-braking state, and the brake operation of the second brake operation element When the slide member slides, it is preferable that the first flat surface portion is moved a predetermined distance and then brought into contact with the cam surface. Further, the cam surface is configured so that the second brake is in a full braking state before the first brake is in a full braking state via the rotating member by a braking operation of the second brake operator. Preferably it is set to. Furthermore, it is preferable that the contact portion always contacts the cam portion from the non-braking state to the full braking state of the second brake operation element. Further, it is preferable that the contact portion is in contact with the cam portion via a rolling member provided at the contact portion.

  Further, the rotating member is formed with a long hole in the pulling direction of the single system brake connecting means, and the connecting member provided in the single system brake connecting means includes the first brake operating element and the When both of the second brake controls are in the non-braking state, the single brake connection means is located at the end of the elongated hole on the side of the single brake connection means, and the single brake connection means is operated by the braking operation of the first brake control element. When pulled, the connecting member in contact with the end of the long hole on the side of the single brake connecting means rotates the rotating member to rotate the first brake via the first brake operating means. When the braking member is actuated and the rotating member is rotated via the slide member by the braking operation of only the second brake operator, the connecting member is not braked. Leave position when the only the rotary member including the slot is suitable when actuating the first brake actuating means to pivot. The first brake actuating means may be a piston of a hydraulic master cylinder for actuating a hydraulic brake, and the first brake actuating means is for a first brake for actuating a mechanical brake. It may be a connection means. Furthermore, it is preferable that the first brake is a front wheel brake and the second brake is a rear wheel brake.

  According to the bar handle vehicle brake device of the present invention, the interlocking mechanism includes the rotation member and the slide member, and the rotation member is rotated by the braking operation of the first brake operation element, so that the first brake is operated. Works alone. Further, by the braking operation of the second brake operator, the slide member is pulled and slid by the interlocking brake connecting means connected to the second brake operator, and the second brake connecting means of the second brake And the second brake is operated, and the sliding member slides to rotate the rotating member, and the first brake operating means can be operated to operate the first brake in conjunction with each other. . As described above, the interlocking mechanism can reduce the number of parts as compared with the conventional master cylinder unit, so that each part can be easily assembled and the cost can be reduced.

  Furthermore, by assembling the rotating member and the slide member in one housing, it is possible to improve the assemblability.

  Further, the slide member includes a rolling member at a portion facing the cam portion, and the slide member is supported by a support surface that supports the slide member so as to be linearly movable through the rolling member. It can slide well.

  Further, the cam surface is formed as an inclined surface or a curved surface, and the cam portion includes a first flat portion on the interlocking brake connecting means side and a second flat surface on the second brake connecting means side provided on both sides of the cam surface, respectively. And the first contact portion of the rotating member moves along the cam surface, whereby the first brake can be operated by rotating the rotating member. And the operation timing and the operation feeling of the first brake can be easily set by the length of the second plane portion, the inclination angle of the cam surface and the curved surface shape.

  Further, the contact portion of the rotating member is in a position to contact the first flat surface portion when the second brake operation element is in the non-braking state, and the slide member has been slid by the braking operation of the second brake operation element. Sometimes, when the second brake operation element is operated by moving a predetermined distance of the first plane portion and then contacting the cam surface, the second brake first impairs the operation feeling. Without being activated, after which the first brake can also be activated.

  Further, the cam surface is set so that the second brake is in the full braking state before the first brake is in the full braking state via the rotating member by the braking operation of the second brake operator. As a result, the operational feeling can be improved.

  Further, the contact portion is always in contact with the cam portion from the non-braking state to the full braking state of the second brake operation element, thereby appropriately operating the second brake and the first brake. be able to.

  Furthermore, the abutting portion can be favorably rotated by being in contact with the cam portion via a rolling member provided at the corresponding contacting portion.

  In addition, the rotating member is formed with a long hole in the pulling direction of the single-system brake linking means, and the connecting members provided in the single-system brake linking means are the first brake operation element and the second brake operation. When both of the slaves are in a non-braking state, when the single brake connecting means is pulled by the braking operation of the first brake operating element, the single brake connecting means is located at the end of the long hole. The connecting member in contact with the end portion of the single brake connecting means turns the rotating member to cause the first brake to be braked via the first brake operating means, and only the second brake operator is braked. When the rotating member is rotated through the slide member by the operation, the connecting member remains in the position when the first brake operation element is in the non-braking state, and only the rotating member including the elongated hole is rotated. 1 brake operating means By actuating the brake, the second brake operator is operated, and when the first brake and the second brake are operated, the rotating member rotates while holding the connecting member in the initial state. Therefore, the single brake connecting means is not pushed out, and the operability of the first brake operator is not adversely affected.

  Furthermore, since the first brake operating means is a piston of a hydraulic master cylinder that operates the hydraulic brake, the hydraulic brake can be applied to the first brake.

  Further, since the first brake actuating means is the first brake connecting means for actuating the mechanical brake, the mechanical brake can be applied to the first brake.

  Further, since the first brake is the front wheel brake and the second brake is the rear wheel brake, the front wheel brake is operated independently by the braking operation of the first brake operator, and the second brake operator is braked. By operating the rear wheel brake, the front wheel brake can be operated in conjunction with the rear wheel brake.

It is explanatory drawing of the brake device which shows the 1st form example of this invention. It is explanatory drawing which act | operated the operator for rear-wheel brakes similarly, and act | operated the rear-wheel brake. FIG. 6 is an explanatory view in which the front wheel brake is operated after the rear wheel brake is operated by operating the rear wheel brake operator. Similarly, it is an explanatory view showing a state in which the front wheel brake is operated to a predetermined state by operating the rear wheel brake operation element. Similarly, after the front wheel brake is operated to a predetermined state by the operation of the rear wheel brake operation element, the rear wheel brake is further fully operated. Similarly, it is an explanatory view in which the front wheel brake is fully operated by operating the front wheel brake operation element. Similarly, the front wheel brake operation element and the rear wheel brake operation element are operated to fully operate the front wheel brake and the rear wheel brake. It is explanatory drawing of the brake device which shows the 2nd form example of this invention. It is explanatory drawing which act | operated the operator for rear-wheel brakes similarly, and act | operated the rear-wheel brake. FIG. 6 is an explanatory view in which the front wheel brake is operated after the rear wheel brake is operated by operating the rear wheel brake operator. Similarly, it is an explanatory view in which the front wheel brake is operated to a predetermined state by the operation of the rear wheel brake operation element. Similarly, after the front wheel brake is operated to a predetermined state by the operation of the rear wheel brake operation element, the rear wheel brake is further fully operated. Similarly, it is an explanatory view in which the front wheel brake is fully operated by operating the front wheel brake operation element. Similarly, the front wheel brake operation element and the rear wheel brake operation element are operated to fully operate the front wheel brake and the rear wheel brake.

  FIGS. 1 to 7 show a first embodiment of the present invention. A brake device 1 for a bar handle vehicle includes a front wheel brake operator 3 attached to a bundle bar 2 for steering a front wheel (of the present invention). First brake operator), rear wheel brake operator 4 (second brake operator), both brake operators 3, 4 and front wheel brake 5 (first brake) and rear wheel And an interlocking mechanism 7 interposed between the brakes 6 (second brake of the present invention). The front wheel brake 5 uses a hydraulic disk brake in which a caliper body 5b is combined with a disk rotor 5a that rotates integrally with the front wheel. In the rear wheel brake 6, a pair of brake shoes 6b, 6b are disposed opposite to each other in the back plate 6a so as to be able to expand, and both the brake shoes 6b, 6b are rotated by a cam shaft 6d integrated with the cam lever 6c, thereby anchor pins 6e. Leading & trailing type mechanical drum brakes are used that expand at the fulcrum.

  The interlock mechanism 7 includes a first brake wire connected to the front wheel brake operator 3 in a housing 9 integrally provided with a hydraulic master cylinder 8 (first brake operating means of the present invention) that operates the front wheel brake 5. 10 (single brake connection means of the present invention) and a rotating member 11 interposed between the hydraulic master cylinder 8 and a second brake wire 12 connected to the rear wheel brake operator 4 ( And a slide member 14 interposed between the third brake wire 13 connected to the rear wheel brake 6 (second brake connection means of the present invention). Yes.

  The housing 9 is formed in a rectangular parallelepiped shape, and the cylinder body 8a of the hydraulic master cylinder 8 is integrally provided on the ceiling wall 9a of the housing 9 in a direction orthogonal to the ceiling wall 9a. The hydraulic master cylinder 8 has a cylinder body 8a with a cylinder hole 8b opened in the housing. The piston 8d can be moved to the housing side of the cylinder hole 8b via piston seals 8c and 8c. A hydraulic chamber 8e is provided on the tip side of the piston 8d. A return spring 8f is contracted in the hydraulic chamber 8e, and the piston 8d is urged toward the opening of the cylinder hole by the elastic force of the return spring 8f, and the end of the piston 8d is located closer to the housing than the ceiling wall 9a of the housing 9. It protrudes inside. The peripheral wall of the cylinder body 8a is provided with a connecting boss portion 8j to which a fluid passage pipe 8i communicating with a reservoir (not shown) is connected, and hydraulic fluid is supplied to the connecting boss portion 8j to the hydraulic pressure chamber 8e. There are provided a relief port 8k and a supply port 8m for returning the hydraulic fluid from the hydraulic chamber 8e to the reservoir. Further, an output port 8g is provided at the tip of the cylinder hole 8b so as to communicate with the hydraulic pressure chamber 8e, and the hydraulic pressure chamber 8e and the front wheel brake 5 are connected via a hydraulic pressure pipe 15 connected to the output port 8g. Communicate.

  The rotating member 11 is attached to one side of the housing so as to be rotatable by a rotating shaft 11a, and a tip extending from the rotating base 11b toward the other side of the housing. A connecting portion 11c provided; a pushing portion 11d that is formed between the rotation base portion 11b and the connecting portion 11c and contacts the protruding end 8h of the piston 8d that protrudes into the housing; 9 is provided with an abutting portion 11e that protrudes toward the bottom wall side and abuts against the slide member 14. A long hole 11f that is long in the pulling direction of the first brake wire 10 is formed in the connecting portion 11c, and a connecting member 10a provided at the tip of the first brake wire 10 is inserted into the long hole 11f. A rolling member 11g is attached to the tip of the contact portion 11e.

  The slide member 14 is formed in a plate shape connecting the second brake wire 12 connected to the rear wheel brake operation element 4 and the third brake wire 13 connected to the rear wheel brake 6. A cam portion 14b having a cam surface 14a that contacts the contact portion 11e is provided. The cam portion 14b includes the cam surface 14a formed by an inclined surface for rotating the rotating member 11, a first flat surface portion 14c formed on the cam surface 14a on the second brake wire 12 side, and a cam. And a second flat surface portion 14d formed on the surface 14a on the third brake wire 13 side. Furthermore, rolling members 14e and 14e are provided on the bottom surface facing the cam portion 14b. The slide member 14 is disposed on the bottom wall surface 9b of the housing 9 (support surface of the present invention) via the rolling members 14e and 14e so as to be linearly movable.

  In the brake device 1 formed as described above, in the non-braking state, as shown in FIG. 1, the slide member 14 is driven by the third brake wire of the housing 9 by the spring force of the lever spring 6 f of the rear wheel brake 6. The abutting portion 11e of the rotating member 11 is located on the 13th side and abuts on a first flat portion 14c separated from the cam surface 14a of the slide member 14 by a predetermined distance S1 (a preset distance of the present invention). The pushing portion 11d of the rotating member 11 is in contact with the protruding end 8h of the piston 8d, and the rotating member 11 is pressed toward the slide member 14 side. Further, the connecting member 10 a of the first brake wire 10 is located at the first brake wire side end portion 11 h in the long hole 11 f of the rotating member 11.

  In the case where the second brake wire 12 is provided with an adjusting mechanism, a predetermined distance is provided so that a distance sufficient to have a delay effect is ensured regardless of how the second brake wire 2 is stretched. S1 is set.

  As shown in FIG. 2, when the rear wheel brake operation element 4 is braked, the second brake wire 12 pulls the slide member 14. The slide member 14 linearly slides on the bottom wall surface 9b of the housing 9 via the rolling members 14e and 14e, and pulls the third brake wire 13 so that the cam is provided via the cam lever 6c of the rear wheel brake 6. The shaft 6d expands the brake shoes 6b, 6b with the anchor pin 6e as a fulcrum, and the rear wheel starts to brake. At this time, the rotating member 11 does not rotate because the contact portion 11e moves only on the first flat surface portion 14c of the slide member 14 via the rolling member 11g, and the front wheel brake 5 is in an unbraking state. Yes.

  Further, when the rear wheel brake operation element 4 is braked, as shown in FIG. 3, the slide member 14 is further slid to the second brake wire 12 side, the third brake wire 13 is pulled, and the rear wheel brake 6 is pulled. Becomes a predetermined braking force, and the contact portion 11e of the rotating member 11 moves through the rolling member 11g by a predetermined distance S1 from the position in the non-braking state, and then moves the cam surface 14a of the slide member 14. Begin to. Along with this, the rotating member 11 rotates clockwise around the rotating shaft 11a, and the pushing portion 11d of the turning member 11 pushes the piston 8d of the hydraulic master cylinder 8 to move the piston. When 8d moves to the bottom of the cylinder hole while filling the invalid stroke S3, and the cup seal 8c closes the relief port 8k, the pressure of the hydraulic fluid in the hydraulic chamber 8e is started. As shown in FIG. 3, when the rolling member 11g moves the cam surface 14a by the distance S2, the cup seal 8c closes the relief port 8k, and the pressure of the hydraulic fluid in the hydraulic chamber 8e is started. . Then, the hydraulic pressure generated in the hydraulic pressure chamber 8e is supplied to the caliper body 5b of the front wheel brake 5 via the output port 8g and the hydraulic pressure pipe 15, and the front wheels start to brake. Further, when the rotating member 11 rotates, the connecting member 10a provided at the tip of the first brake wire 10 includes the long hole 11f in the position when the front wheel brake operation element 3 is in the non-braking state. Since only the rotating member 11 rotates to brake the front wheel brake 5, the first brake wire 10 is not pushed out, and the front wheel brake operation element 3 is not adversely affected.

  Further, when the rear wheel brake operation element 4 is braked, as shown in FIG. 4, the slide member 14 is further slid toward the second brake wire 12, the third brake wire 13 is pulled, and the rear wheel brake 6 is pulled. Is further strongly braked, and the contact portion 11e of the rotating member 11 moves to the second flat surface portion 14d via the rolling member 11g. Accordingly, even if the rear wheel brake operation element 4 is further brake-operated, the rotating member 11 only moves the contact portion 11e on the second flat surface portion 14d, and the rotating member 11 further rotates. Without the operation, the operation of the rear wheel brake operation element 4 causes the front wheel brake 5 to operate to a predetermined braking force. As shown in FIG. 5, until the rear wheel brake operation element 4 is further braked and the rear wheel brake 6 is fully operated, the rotating member 11 moves the second flat surface portion 14 d with the contact portion 11 e. Only by doing this, the state where the front wheel brake 5 is operated to a predetermined braking force is maintained without rotating the rotating member 11.

  When the operation of the rear wheel brake operation element 4 is released, the third brake wire 13 pulls the slide member 14 by the spring force of the lever spring 6f, so that the slide member 14 is slid while the slide member 14 is in a non-braking position. And 11e of the rotating member 11 moves the cam surface 14a of the slide member 14 in the direction opposite to that during braking via the rolling member 11g. At this time, the force that the piston 8d tries to rotate the rotating member 11 counterclockwise is exerted by the elastic force of the return spring 8f. Therefore, the rotating member 11 is centered on the rotating shaft 11a. To counterclockwise to return to the non-braking position.

  As shown in FIG. 6, when the front wheel brake operation element 3 is braked, the first brake wire 10 pulls the first brake wire side end portion 11 h of the long hole 11 f through the connecting member 10 a and comes into contact therewith. The portion 11e is separated from the cam portion 14b, and the rotating member 11 can be rotated clockwise around the rotating shaft 11a, thereby actuating the piston 8d of the hydraulic master cylinder 8 and disengaging the front wheel brake 5. Can be fully operated.

  FIG. 7 shows that the rear wheel brake 6 is fully operated by sliding the slide member 14 to the maximum with the rear wheel brake operation element 4 and the front wheel brake operation element 3 being braked. In addition, the abutting portion 11e and the cam portion 14b are separated from each other, and the rotating member 11 is rotated to the maximum extent, whereby the front wheel brake 5 can be brought into a full operation state.

  Since the present embodiment is formed as described above, the front wheel brake 5 is independently operated by the braking operation of the front wheel brake operation element 3 and the braking operation of the rear wheel brake operation element 4 is performed with a simple structure. Since both the front wheel brake 5 and the rear wheel brake 6 can be operated in conjunction with each other and the number of parts can be reduced as compared with the structure of the conventional master cylinder unit, the assembling property of the parts is improved. And cost can be reduced. Further, the rotating member 11 and the slide member 14 are accommodated in one housing, and the hydraulic master cylinder 8 is formed integrally with the housing 9, so that the assembling property can be improved. Further, the slide member 14 is supported by the bottom wall surface 9b of the housing 9 via the rolling members 14e and 14e, so that the slide member 14 can be slid linearly and satisfactorily.

  Further, the cam portion 14b of the slide member 14 includes a cam surface 14a formed of an inclined surface, a first flat surface portion 14c formed on the cam surface 14a on the second brake wire 12 side, and a third brake of the cam surface 14a. By providing the second flat surface portion 14d formed on the wire 13 side, the operation timing of the front wheel brake 5 can be determined by the lengths of the first flat surface portion 14c and the second flat surface portion 14d and the inclination angle of the cam surface 14a. Operation feeling can be set easily.

  Further, the contact portion 11e of the rotating member 11 is in a position to contact the first flat surface portion 14c when the rear wheel brake operation element 4 is in a non-braking state. When the slide member 14 is slid, when the rear wheel brake operation element 4 is braked by moving a predetermined distance of the first flat surface portion 14c and then coming into contact with the cam surface 14a, first, The rear wheel brake 6 operates without impairing the operation feeling, and thereafter the front wheel brake 5 can also be braked. Furthermore, the cam surface 14a is arranged so that the rear wheel brake 6 is in a full braking state before the front wheel brake 5 is in a full braking state via the rotating member 11 by the braking operation of the rear wheel brake operation element 4. By setting, the operational feeling can be improved. Further, the contact portion 11e is always in contact with the cam portion 14b from the non-braking state to the full braking state of the rear wheel brake operation element 4, whereby the rear wheel brake 6 and the front wheel brake 5 are It can be operated properly.

  Furthermore, the contact part 11e can rotate the rotation member 11 satisfactorily by contacting the cam part 14b via the rolling member 11g provided in the contact part 11e. Further, when the rotating member 11 is rotated via the slide member 14 by the braking operation of only the rear wheel brake operation element 4, the connecting member 10a is located at the position when the front wheel brake operation element 3 is in the non-braking state. Since only the rotating member including the long hole 11f rotates to brake the front wheel brake 5, the first brake wire 10 is not pushed out, and the operability of the front wheel brake operator 3 is adversely affected. There is nothing.

  FIGS. 8 to 14 show a second embodiment of the present invention. Components that are the same as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. .

  As shown in FIG. 8, in the brake device 1 according to the present embodiment, a leading & trailing type mechanical drum brake is used for the front wheel brake 21 as well as the rear wheel brake 6, and the back plate 21a includes A pair of opposing brake shoes 21b and 21b are arranged so as to be able to expand with the anchor pin 21e as a fulcrum by the rotation of the cam shaft 21d integral with the cam lever 21c. Further, the fourth brake wire 24 pulls the rotating member 25 by the spring force of the lever spring 21f, so that a force is exerted to rotate the rotating member 25 counterclockwise.

  In the housing 23, the interlock mechanism 22 includes a first brake wire 10 connected to the front wheel brake operation element 3, and a fourth brake wire 24 connected to the front wheel brake 21 (first brake connecting means of the present invention). Between the rotating member 25 interposed between the second brake wire 12 and the third brake wire 13 connected to the rear wheel brake 6. The same slide member 14 as in the first embodiment is provided.

  The rotation member 25 of this embodiment is provided on one side of the housing 23 with a rotation base 25b rotatably attached by a rotation shaft 25a, and extends from the rotation base 25b toward the other side of the housing. A connecting portion 25c that is formed at the extended tip and connects the first brake wire 10; a contact portion 25e that protrudes toward the bottom wall of the housing 23 and includes a rolling member 25d that contacts the slide member 14; It is disposed at an intermediate position between the base portion 25b and the contact portion 25e, and includes an operating portion 25f that pulls the fourth brake wire 24, and a long hole 25g is formed in the connecting portion 25c as in the first embodiment. Yes.

  In the brake device 1 according to the present embodiment, in the non-braking state, as shown in FIG. 8, the slide member 14 is moved toward the third brake wire 13 of the housing 23 by the spring force of the lever spring 6 f of the rear wheel brake 6. The contact portion 25e of the rotating member 25 is in contact with the first flat surface portion 14c that is separated from the cam surface 14a of the slide member 14 by a predetermined distance, and the connecting member 10a of the first brake wire 10 is connected to the rotating member 25. It is located at the first brake wire side end portion 25h in the long hole 25g.

  As shown in FIG. 9, when the rear wheel brake operation element 4 is braked, the second brake wire 12 pulls the slide member 14. The slide member 14 linearly slides on the bottom wall surface 23a of the housing 23 via the rolling members 14e and 14e, and pulls the third brake wire 13 so that the cam is received via the cam lever 6c of the rear wheel brake 6. The shaft 6d expands the brake shoes 6b, 6b with the anchor pin 6e as a fulcrum, and the rear wheel starts to brake. At this time, the rotating member 25 does not rotate because the contact portion 25e moves only through the first flat surface portion 14c of the slide member 14 via the rolling member 25d, and the front wheel brake 21 is in an unbraking state. Yes.

  Further, when the rear wheel brake operation element 4 is braked, as shown in FIG. 10, the slide member 14 is further slid to the second brake wire 12 side, the third brake wire 13 is pulled, and the rear wheel brake 6 is pulled. Becomes a predetermined braking force, and the contact portion 25e of the rotation member 25 starts to move on the cam surface 14a of the slide member 14 via the rolling member 25d. Along with this, the rotating member 25 rotates clockwise about the rotating shaft 25 a, and the operating portion 25 f of the rotating member 25 pulls the fourth brake wire 24 via the cam lever 21 c of the front wheel brake 21. The camshaft 21d opens the brake shoes 21b and 21b with the anchor pin 21e as a fulcrum, and the front wheels start to brake. At this time, when the rolling member 25d moves the cam surface 14a by a predetermined distance and fills the clearance of the front wheel brake 21, braking of the front wheel is started. Further, when the rotating member 25 rotates, the connecting member 10a provided at the distal end of the first brake wire 10 includes the long hole 25g while keeping the position when the front wheel brake operation element 3 is in the non-braking state. Since only the rotating member 25 is rotated to brake the front wheel brake 21, the first brake wire 10 is not pushed out, and the front wheel brake operation element 3 is not adversely affected.

  Further, when the rear wheel brake operation element 4 is braked, as shown in FIG. 11, the slide member 14 is further slid to the second brake wire 12 side, the third brake wire 13 is pulled, and the rear wheel brake 6 is pulled. Is further strongly braked, and the contact portion 25e of the rotating member 25 moves to the second flat surface portion 14d via the rolling member 25d. As a result, even if the braking operation of the rear wheel brake operation element 4 is further performed, the rotating member 25 only moves the contact portion 25e on the second flat surface portion 14d, and the rotating member 25 rotates further. Thus, the front wheel brake 21 is operated to a predetermined braking force by the operation of the rear wheel brake operation element 4. As shown in FIG. 12, until the rear wheel brake operation element 4 is further braked and the rear wheel brake 6 is fully operated, the rotating member 25 moves the second flat surface portion 14d with the contact portion 25e. Only by doing this, the state in which the front wheel brake 21 is operated to a predetermined braking force is maintained without rotating the rotating member 25.

  When the operation of the rear wheel brake operator 4 is released, the third brake wire 13 pulls the slide member 14 by the spring force of the lever spring 6f, so that the slide member 14 returns to the non-braking state while sliding. The contact portion 25e of the rotating member 25 moves the cam surface 14a of the slide member 14 in the opposite direction to that during braking through the rolling member 25d. At this time, the spring force of the lever spring 21f exerts a force to rotate the rotating member 25 counterclockwise. Therefore, the rotating member 25 rotates counterclockwise around the rotating shaft 25a. To return to the non-braking position.

  As shown in FIG. 13, when the front wheel brake operation element 3 is actuated, the first brake wire 10 pulls the first brake wire side end 25h of the long hole 25g through the connecting member 10a and comes into contact therewith. The portion 25e is separated from the cam portion 14b, and the rotation member 25 can be rotated clockwise around the rotation shaft 25a, thereby pulling the fourth brake wire 24 and fully operating the front wheel brake 21. be able to.

  FIG. 14 shows that the rear wheel brake 6 is fully operated by sliding the slide member 14 to the maximum with the rear wheel brake operation element 4 and the front wheel brake operation element 3 being braked. In addition, the abutment portion 25e and the cam portion 14b are separated from each other, and the rotation member 25 is rotated to the maximum, whereby the front wheel brake 21 can be brought into a full operation state.

  The present invention is not limited to the above-described embodiments, and the rotating member and the slide member may not be accommodated in the housing, and when the front wheel brake is a hydraulic type, the liquid is separated from the housing. A pressure master cylinder can also be provided. Further, the cam surface is not limited to the inclined surface, and can be formed as a curved surface. Further, in each of the above-described embodiments, the upper and lower sides of the housing are set according to the drawings, but the orientation of the housing is arbitrary. In addition, the hydraulic brake and the mechanical brake can be provided reverse to the first embodiment, and the interlocking brake connecting means is connected to the front wheel brake operator, and the independent brake connecting means is provided. It can also be connected to a rear wheel brake operator.

  DESCRIPTION OF SYMBOLS 1 ... Brake device, 2 ... Handlebar, 3 ... Front wheel brake operator, 4 ... Rear wheel brake operator, 5 ... Front wheel brake, 5a ... Disc rotor, 5b ... Caliper body, 6 ... Rear wheel brake, 6a ... Back plate, 6b ... brake shoe, 6c ... cam lever, 6d ... cam shaft, 6e ... anchor pin, 6f ... lever spring, 7 ... interlocking mechanism, 8 ... hydraulic master cylinder, 8a ... cylinder body, 8b ... cylinder hole, 8c ... Piston seal, 8d ... Piston, 8e ... Hydraulic chamber, 8f ... Return spring, 8g ... Output port, 8h ... Projecting end, 9 ... Housing, 9a ... Ceiling wall, 9b ... Bottom wall, 10 ... First brake wire, DESCRIPTION OF SYMBOLS 10a ... Connection member, 11 ... Rotation member, 11a ... Rotation shaft, 11b ... Rotation base part, 11c ... Connection part, 11d ... Pushing part, 11e ... Contact part, 11f ... Long hole, DESCRIPTION OF SYMBOLS 1g ... Rolling member, 11h ... 1st brake wire side edge part, 12 ... 2nd brake wire, 13 ... 3rd brake wire, 14 ... Slide member, 14a ... Cam surface, 14b ... Cam part, 14c ... 1st plane Part, 14d ... second flat part, 14e ... rolling member, 15 ... hydraulic pipe, 21 ... front wheel brake, 21a ... back plate, 21b ... brake shoe, 21c ... cam lever, 21d ... cam shaft, 21e ... anchor pin, 21f ... lever spring, 22 ... interlocking mechanism, 23 ... housing, 23a ... bottom wall surface, 24 ... fourth brake wire, 25 ... rotating member, 25a ... rotating shaft, 25b ... rotating base, 25c ... connecting portion, 25d ... Rolling member, 25e ... contact part, 25f ... acting part, 25g ... long hole, 25h ... first brake wire side end

Claims (12)

A first brake and a second brake; a first brake operator and a second brake operator; and a linkage mechanism that transmits a braking operation of the second brake operator to the first brake and the second brake. In the bar-handle vehicle brake device, the interlock mechanism is interposed between a single-system brake connecting means connected to the first brake operation element and a first brake operating means for operating the first brake. A rotating member, and a sliding member interposed between the interlocking brake connecting means connected to the second brake operator and the second brake connecting means connected to the second brake. And the sliding member moves the rotating member to the first brake operation when it is pulled and slid by the interlocking brake connecting means by the braking operation of the second brake operator. And a cam portion having a cam surface for rotating the first brake in a direction in which the first brake is actuated for braking, and the rotating member includes a contact portion that contacts the cam portion. A brake device for a bar handle vehicle. 2. The brake apparatus for a bar handle vehicle according to claim 1, wherein the rotating member and the slide member are accommodated in one housing. The slide member includes a rolling member at a portion facing the cam portion, and is supported by a support surface that supports the slide member so as to be linearly movable via the rolling member. 3. The brake apparatus for a bar handle vehicle according to claim 1, wherein the brake apparatus is a bar handle vehicle. The cam portion includes the cam surface formed by an inclined surface or a curved surface for rotating the rotating member, and a first flat surface portion formed on the cam system on the side of the interlocking brake connecting means. The bar handle vehicle brake device according to any one of claims 1 to 3, further comprising a second flat portion formed on the cam surface on the second brake connecting means side. The abutting portion of the rotating member is in a position that abuts on the first flat surface portion when the second brake operation element is in a non-braking state, and the slide member is operated by a braking operation of the second brake operation element. 5. The bar handle vehicle brake device according to claim 4, wherein when the slid slides, a predetermined distance of the first flat surface portion is moved to contact the cam surface. 6. The cam surface is set so that the second brake is in a full braking state before the first brake is in a full braking state via the rotating member by a braking operation of the second brake operator. The bar handle vehicle brake device according to any one of claims 1 to 5, wherein the bar handle vehicle brake device is provided. 7. The contact portion according to claim 1, wherein the contact portion is always in contact with the cam portion from a non-braking state to a full braking state of the second brake operation element. The brake apparatus for bar handle vehicles as described. 8. The bar handle vehicle brake device according to claim 1, wherein the contact portion is in contact with the cam portion via a rolling member provided at the contact portion. 9. . The rotating member is formed with a long hole in the pulling direction of the single brake connecting means, and the connecting member provided in the single brake connecting means includes the first brake operator and the second brake member. When both the brake operation elements are in the non-braking state, the single system brake connection means is pulled by the braking operation of the first brake operation element. Then, the connecting member in contact with the end of the long hole on the side of the single-system brake connecting means rotates the rotating member, whereby the first brake is braked via the first brake operating means. And when the rotating member is rotated via the slide member by the braking operation of only the second brake operator, the connecting member is when the first brake operator is in a non-braking state. 9. The bar handle vehicle brake according to claim 1, wherein only the rotating member including the elongated hole is rotated to operate the first brake actuating device while being in the position. 10. apparatus. The bar handle vehicle brake device according to any one of claims 1 to 9, wherein the first brake actuating means is a piston of a hydraulic master cylinder that operates a hydraulic brake. 10. The bar handle vehicle brake device according to claim 1, wherein the first brake actuating means is a first brake connecting means for actuating a mechanical brake. 11. The bar handle vehicle brake device according to any one of claims 1 to 11, wherein the first brake is a front wheel brake, and the second brake is a rear wheel brake.

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