JP4758721B2 - Brake device for motorcycle with sidecar - Google Patents

Description

  The present invention relates to a braking device for a motorcycle with a sidecar.

2. Description of the Related Art As a conventional brake device for a motorcycle with a sidecar, a rear brake system that brakes a rear wheel is connected to a side wheel brake system that brakes a wheel of a side car (sidecar) (for example, Patent Document 1). reference.).
Further, there is known a motorcycle in which a front wheel and a rear wheel are operated in conjunction with each other (see, for example, Patent Document 1).
JP 59-40985 A JP-A-4-368267

  FIG. 1 of Patent Document 1 shows a front brake system 1 for braking a front wheel 15, a rear brake system 2 for braking a rear wheel 25, and a side vehicle as a brake device for a motorcycle with a side car. A side wheel brake system 3 for braking the wheel 34 is provided, the rear brake system 2 is made independent of the front brake system 1, and a pipe 31 is connected in the middle of the pipe 23 of the rear brake system 2, thereby It is described that the side wheel brake system 3 is connected to the system 2.

  When the brake pedal 21 provided in the rear brake system 2 is stepped on, the rear wheel hydraulic pressure operating brake operating device 24 is operated, and the side wheel hydraulic pressure operating brake device 33 is operated with a delay by the delay valve 32.

  Further, in FIG. 2 of Patent Document 2, the first master cylinder MC1 that generates hydraulic pressure by operating the brake lever L is connected to the left and right brake cylinders BCFL and BCFR of the front wheel, and one brake cylinder BCFR is connected to one brake cylinder BCFR. It is described that a mechanical servo mechanism MS that generates hydraulic pressure by an acting braking reaction force is connected to a brake cylinder BCR for a rear wheel via a pressure control valve CV.

  In FIG. 2, the second master cylinder MC2 for generating hydraulic pressure by operating the brake pedal P is connected to the brake cylinder BCR for the rear wheel and to the left and right brake cylinders BCFL and BCFR for the front wheel. It is described.

  Accordingly, if one of the brake lever L and the brake pedal P is operated, both the front wheel brake cylinders BCFL and BCFR and the rear wheel brake cylinder BCR are operated, and both the front wheel and the rear wheel can be braked. become.

  In the motorcycle with a side vehicle disclosed in Patent Document 1, even if the rear wheel 25 and the wheel 34 of the side vehicle are braked by interlocking the rear brake system 2 and the side wheel brake system 3, Since the distributed load of 25 is smaller than the distributed load of the front wheel 25, the deceleration of the motorcycle with a side vehicle is not so large. In order to obtain a large deceleration, it is necessary to operate the front brake system 1 by grasping the brake lever 11 almost simultaneously with the operation of the rear brake system 2 and the side wheel brake system 3 by depressing the brake pedal 21.

  In order to further increase the deceleration so that the vehicle can be stopped at a short distance, skill is required to properly distribute the braking force of the rear wheel 25 and the wheel 34 of the side vehicle and the braking force of the front wheel 25. In a motorcycle with a side vehicle, simple operability is desired in the same manner as in the motorcycle disclosed in Patent Document 2 in which braking of the front and rear wheels is linked to improve the operability of the brake operation.

  An object of the present invention is to increase the deceleration and improve the operability of brake operation in a motorcycle with a sidecar.

According to the first aspect of the present invention, a front wheel brake is provided on the front wheel of a motorcycle to which a side car is coupled, and a rear wheel brake is provided on the rear wheel, and the brake lever, brake pedal, etc. In a brake device for a motorcycle with a sidecar that can transmit the operating force applied to the vehicle via two routes and can interlock the brake for the front wheel and the brake for the rear wheel, the sidecar brake is provided on the wheel provided in the sidecar. The braking force of the brake for the motorcycle is generated based on the braking force of the motorcycle, the braking force of the brake for the side car is generated in conjunction with the braking of the brake for the front wheel, and the secondary master cylinder is installed in the front brake caliper provided for the brake for the front wheel. When connected, this secondary master cylinder generates hydraulic pressure in conjunction with the operation of the front brake caliper. , Characterized in that to convey this fluid pressure to the sidecar brake.

As a function of a brake device for a motorcycle with a sidecar, an operating force is applied to a brake lever, a brake pedal, etc., and transmitted to a front wheel brake and a rear wheel brake through two routes. The braking force of the motorcycle generated at this time, that is, the braking force of the front wheel brake and the rear wheel brake is used as a drive source to generate braking force on the sidecar brakes provided on the sidecar wheels according to this braking force.
Since the braking force of the front wheel brake is high by generating the braking force of the side car brake in conjunction with the braking of the front wheel brake, the side car brake is interlocked with the braking of the rear wheel brake as in the past. The deceleration of the motorcycle with a sidecar is larger than that of generating the braking force of
As a function of connecting the secondary master cylinder, the secondary master cylinder is connected to the front brake caliper provided for the front wheel brake. Therefore, the hydraulic path from the secondary master cylinder to the sidecar brake is connected to the front wheel brake and the front wheel brake. It becomes possible to make it independent from each hydraulic pressure path of the brake for rear wheels.

According to a second aspect of the present invention, in the first aspect, the proportioning valve for reducing the output hydraulic pressure at a constant ratio with respect to the input hydraulic pressure is provided in the hydraulic pressure path between the secondary master cylinder and the sidecar brake. It is provided.

  As a function of the proportioning valve, the hydraulic pressure acting on the sidecar brake is reduced at a fixed ratio to the hydraulic pressure generated in the secondary master cylinder, and the braking force of the sidecar wheel is controlled relative to the braking force of the front wheel. To do.

According to a third aspect of the present invention, in the first or second aspect, by operating the brake lever, a hydraulic pressure is generated by the front master cylinder connected to the brake lever, and the hydraulic pressure is input to the front brake caliper. It is characterized by doing.

  As an operation, the brake lever is operated and the hydraulic pressure generated in the front master cylinder is input to the front brake caliper, thereby braking the front wheels and braking the sidecar wheels via the secondary master cylinder.

According to a fourth aspect of the present invention, in any one of the first to third aspects , the hydraulic pressure is generated in the rear master cylinder connected to the brake pedal by operating the brake pedal. Is input to a rear brake caliper constituting a front brake caliper and a rear wheel brake.

  As a function, the brake pedal is operated and the hydraulic pressure generated in the rear master cylinder is input to the front brake caliper and the rear brake caliper to brake the front and rear wheels, and for the sidecar via the secondary master cylinder. Brakes the wheel.

According to a fifth aspect of the present invention, in the first aspect, the rear master cylinder that generates the hydraulic pressure for operating the brake for the rear wheel is connected to the brake pedal, and the hydraulic pressure generated in the rear master cylinder is used for the sidecar. It is also distributed to sidecar brakes that brake the wheels.

  As a function, when the brake pedal is depressed, hydraulic pressure is generated in the rear master cylinder. With this hydraulic pressure, the front wheel brake is interlocked with the rear wheel brake, and the hydraulic pressure in the rear master cylinder is distributed to the side car brake. The brake for the vehicle is operated to brake all of the front wheels, the rear wheels, and the sidecar wheels.

According to a sixth aspect of the present invention, in the first aspect, the hydraulic pressure is generated in the secondary master cylinder by the braking reaction force of the front wheel brake, and the sidecar brake that constitutes the sidecar brake that brakes the sidecar wheel with this hydraulic pressure. Input to the brake caliper.

  As an action, the operating force applied to the brake lever, the brake pedal, etc. is transmitted to the front wheel brake via the two systems of paths to operate the front wheel brake. At this time, hydraulic pressure is generated in the secondary master cylinder by the braking reaction force of the front wheel brake, this hydraulic pressure is input to the side car brake caliper of the side car brake device, the side car brake is operated, and the side car wheel is moved. Braking.

The invention according to claim 7 is the liquid according to any one of claims 1 to 6, wherein the liquid pressure for controlling the hydraulic pressure of the brake for the sidecar is controlled based on the speed of at least two of the front wheels, the rear wheels, and the sidecar wheels. By providing the pressure control unit, the braking force of the sidecar brake is controlled.

  As an action, the hydraulic pressure control unit controls the hydraulic pressure of the sidecar brake based on the speed of at least two of the front wheels, the rear wheels, and the sidecar wheels, thereby suppressing the slip of the sidecar wheels, and the road surface. This makes it possible to ensure a stable braking force that is less affected by the state of the vehicle. Further, in the present invention, the control can be simplified as compared with the case where the hydraulic pressure of the brake for the sidecar is controlled based on the speed of the wheel for all of the front wheels, the rear wheels, and the sidecar wheels.

The invention according to claim 8 provides the wheel speed sensor for detecting the speed of at least two wheels in the front wheel and the rear wheel according to claim 1, and the brake for the sidecar is the same as the brake for the rear wheel by the hydraulic pressure control unit. The hydraulic pressure control is performed.
As a function, wheel speed sensors are provided on the front and rear wheels, and the wheel pressure sensors are provided on the side car wheels in order to control the hydraulic pressure of the side car brakes by the hydraulic pressure control unit based on signals from these wheel speed sensors. No need. In the sidecar brake, the same hydraulic pressure control as that of the rear wheel brake is performed by the hydraulic pressure control unit, so that the control can be simplified.

The invention according to claim 9 is characterized in that, in claim 7 or 8, the sidecar brake is connected to the secondary master cylinder via the hydraulic pressure control unit.
By operating at least one of the brake lever and brake pedal, the secondary master cylinder is actuated and the hydraulic pressure of the sidecar brake is controlled via the hydraulic pressure control unit. Therefore, during braking of at least one of the front and rear wheels , Slip of sidecar wheels can be suppressed.

In the invention according to claim 1, the front wheel brake is provided on the front wheel of the motorcycle to which the sidecar is coupled, and the rear wheel brake is provided on the rear wheel. To the front wheel brake and rear wheel brake, the brake lever, the brake pedal, etc. In a brake device for a motorcycle with a sidecar that can transmit the operating force applied to the vehicle via two routes and can interlock the brake for the front wheel and the brake for the rear wheel, the sidecar brake is provided on the wheel provided in the sidecar. The braking force of the brake for the motorcycle is generated based on the braking force of the motorcycle, the braking force of the brake for the side car is generated in conjunction with the braking of the brake for the front wheel, and the secondary master cylinder is installed in the front brake caliper provided for the brake for the front wheel. Connect and generate hydraulic pressure in this secondary master cylinder in conjunction with the operation of the front brake caliper. Thereby, the fluid pressure since the tell the sidecar brake, it is possible to link the sidecar brake to the front wheel brake or the rear wheel brake, a brake operation is easily to be able to improve the operability of the brake operation In addition, since all of the front wheels, the rear wheels, and the sidecar wheels can be braked, the deceleration of the motorcycle can be further increased, and the vehicle with a sidecar can be stopped at a shorter distance.
Next, since the braking force of the side car brake is generated in conjunction with the braking of the front wheel brake, the deceleration of the motorcycle is increased more than before by the high braking force of the front wheel brake and the braking force of the side car brake. can do.
In addition, a secondary master cylinder is connected to the front brake caliper provided for the front wheel brake, hydraulic pressure is generated in the secondary master cylinder in conjunction with the operation of the front brake caliper, and this hydraulic pressure is transmitted to the sidecar brake. The hydraulic circuit from the secondary master cylinder to the sidecar brake can be made independent of the hydraulic circuit of the front wheel brake and the rear wheel brake, respectively, and the front wheel brake and the rear wheel brake of the motorcycle, respectively. The hydraulic path of the brake for the sidecar can be easily provided without processing the hydraulic circuit.

In the invention according to claim 2, since the proportioning valve for reducing the output hydraulic pressure at a constant ratio with respect to the input hydraulic pressure is provided in the hydraulic pressure path between the secondary master cylinder and the sidecar brake. Therefore, the braking force of the sidecar wheel with respect to the braking force can be appropriately controlled.

In the invention according to claim 3, by operating the brake lever, hydraulic pressure is generated by the front master cylinder connected to the brake lever, and this hydraulic pressure is input to the front brake caliper, so that the front wheels are braked, Sidecar wheels can be braked via the secondary master cylinder, and front wheel and sidecar wheels can be braked to increase the distributed load of the front wheels relative to the distributed load of the rear wheels and obtain a large braking force. .

In the invention according to claim 4, by operating the brake pedal, a hydraulic pressure is generated in the rear master cylinder connected to the brake pedal, and this hydraulic pressure is used as a rear brake caliper that constitutes a front brake caliper and a rear wheel brake. Therefore, the front and rear wheels can be braked and the sidecar wheels can be braked via the secondary master cylinder, so that a higher braking force can be obtained and the motorcycle with a sidecar has a larger deceleration. Can be generated.

In the invention according to claim 5, the rear master cylinder that generates the hydraulic pressure for operating the brake for the rear wheel is connected to the brake pedal, and the side car that brakes the side car wheels with the hydraulic pressure generated in the rear master cylinder. Because it is also distributed to the brakes, when the brake pedal is operated, all of the front wheels, rear wheels, and sidecar wheels can be braked, and the operability of the brake operation can be improved. The deceleration of the can be increased.

In the invention according to claim 6, since the hydraulic pressure is generated in the secondary master cylinder by the braking reaction force of the front wheel brake, and this hydraulic pressure is input to the side car brake caliper constituting the side car brake device, the front wheel brake Alternatively, since the sidecar wheels are braked by the braking reaction force of the front wheel brakes by operating the rear wheel brakes, the operability of the brake operation can be improved and the deceleration of the motorcycle with a sidecar is further increased. be able to.

In the invention according to claim 7, by providing a hydraulic pressure control unit that controls the hydraulic pressure of the sidecar brake based on the speed of at least two of the front wheels, the rear wheels, and the sidecar wheels, Since the braking force is controlled, the braking distance of a motorcycle with a sidecar can be shortened even on slippery roads such as wet roads, ensuring a stable braking force that is less affected by road conditions. it can. Further, since the hydraulic pressure of the sidecar brake is controlled by the hydraulic pressure control unit based on the speeds of at least two wheels, the control can be simplified.

In the invention which concerns on Claim 8, the wheel speed sensor which detects the speed of at least two wheels is provided in the front wheel and the rear wheel, and in the brake for the sidecar, the hydraulic pressure control same as the brake for the rear wheel is performed by the hydraulic pressure control unit. As a result, it is not necessary to provide a wheel speed sensor on the sidecar wheel, and the structure of the brake device can be simplified. Moreover, since the hydraulic pressure control unit controls the hydraulic pressure of the sidecar brake and the rear wheel brake in the same manner, the control can be further simplified.

In the invention according to claim 9, since the sidecar brake is connected to the secondary master cylinder via the hydraulic pressure control unit, the sidecar brake is set via the hydraulic pressure control unit by operating at least one of the brake lever and the brake pedal. Can be operated, and the braking force of the sidecar wheel can be sufficiently secured by one operation.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a plan view of a motorcycle with a sidecar equipped with a brake device according to the present invention, and a motorcycle 10 with a sidecar is a vehicle in which a sidecar (side vehicle) 12 is connected to a side portion of a motorcycle 11. The two-wheeled vehicle 11 includes a bar handle 14 that steers the front wheel 13, a brake lever 16 provided at the right end of the bar handle 14, and a left front brake 17 and a right front brake 18 that brake the front wheel 13 by grasping the brake lever 16. A brake pedal 23 disposed in front of the right step 22 of the left and right steps 21 and 22 on which the driver puts his / her foot, and a rear brake 26 for braking the rear wheel 24 by depressing the brake pedal 23 Prepare. Reference numeral 30 is a front cover, 31 is a wind screen, 32 is a fuel tank, 33 is an engine, 34 is a seat, and 36 and 37 are luggage boxes.

  The side car 12 is connected to a vehicle body frame (not shown) of the motorcycle 11 by connecting members 41 and 42 provided at the front and rear sides. A side space 44 on which a person is placed or a load is placed, and the side space 44 A wheel 45 provided on the side and a side car brake 46 for braking the wheel 45 are provided. Reference numeral 47 is a body cover, and 48 is a wind screen.

FIG. 2 is a system diagram of a brake device (first embodiment) for a motorcycle with a sidecar according to the present invention, and an arrow (FRONT) in the figure represents the front of the vehicle (the same applies hereinafter).
The brake device 55 includes a first brake mechanism 56 that operates by operating the brake lever 16, a second brake mechanism 57 that operates by operating the brake pedal 23, and a third brake mechanism that operates by the braking reaction force of the left front brake 17. It is a system consisting of three systems with 58.

  The first brake mechanism 56 includes a brake lever 16, a front master cylinder 61 that generates hydraulic pressure of brake fluid by operating the brake lever 16, one end connected to the front master cylinder 61, and the other end branched to the left and right The first brake pipe 62 connected to the left front brake 17 and the right front brake 18 and the left front brake 17 and the right front brake 18 are included.

The left front brake 17 includes a brake disc 65 and a front brake caliper 66 that sandwiches the brake disc 65. The front brake caliper 66 includes a first cylinder portion 66a, a second cylinder portion 66b, and a third cylinder portion 66c. The first piston 66d, the second piston 66e, and the third piston 66f are movably inserted into the cylinder portions 66a to 66c, respectively.
The first cylinder part 66a and the third cylinder part 66c are connected to the first brake pipe 62 described above, and the second cylinder part 66b is connected to a second front brake pipe 77 described later.

The right front brake 18 includes a brake disc 71 and a front brake caliper 72 that sandwiches the brake disc 71. The front brake caliper 72 includes a first cylinder portion 72a, a second cylinder portion 72b, and a third cylinder portion 72c. These are assemblies in which the first piston 72d, the second piston 72e, and the third piston 72f are movably inserted into the cylinder portions 72a to 72c, respectively.
The 1st cylinder part 72a and the 3rd cylinder part 72c are connected to the above-mentioned 1st brake piping 62, and the 2nd cylinder part 72b is connected to the 2nd front brake piping 77 mentioned later.

  The second brake mechanism 57 has the brake pedal 23, a rear master cylinder 75 that generates hydraulic pressure by operating the brake pedal 23, one end connected to the rear master cylinder 75, and the other end connected to the rear brake 26. A second rear brake pipe 76, and a second front brake pipe 77 having one end connected to the middle of the second rear brake pipe 76 and the other end branched to the left and right and connected to the left front brake 17 and the right front brake 18. The left front brake 17 and the right front brake 18. Reference numeral 78 denotes a reservoir tank connected to the rear master cylinder 75.

The rear brake 26 includes a brake disc 81 and a rear brake caliper 82 that sandwiches the brake disc 81. The rear brake caliper 82 includes a cylinder portion 82a, and a member in which a piston 82b is movably inserted into the cylinder portion 82a. It is.
The cylinder part 82a is connected to the second rear brake pipe 76 described above.

  The third brake mechanism 58 is connected to the left front brake 17 by a connecting member (not shown; details will be described later) provided in the brake device 55, and one end is connected to the secondary master cylinder 86. In addition, a third brake pipe 87 having the other end connected to the side car brake 46, a decompression proportioning valve (also referred to as a PCV (Proportional Control Valve)) 88 provided in the middle of the third brake pipe 87, and a side car brake. 46.

The side car brake 46 includes a brake disc 91 and a side brake caliper 92 that sandwiches the brake disc 91. The side brake caliper 92 includes a cylinder portion 92a, and a piston 92b is movably inserted into the cylinder portion 92a. It is a solid.
The cylinder part 92a is a part connected to the third brake pipe 87 described above.

  The proportioning valve 88 is a valve that reduces the output hydraulic pressure at a constant ratio with respect to the input hydraulic pressure, and the hydraulic pressure of the cylinder portion 92 a of the side brake caliper 92 against the hydraulic pressure generated in the secondary master cylinder 86. At a constant rate.

  FIG. 3 is a side view of the main part of the motorcycle showing the connecting member of the brake device (first embodiment) according to the present invention. The front brake caliper 66 and the secondary master cylinder 86 of the left front brake 17 are a front fork. The caliper arm 97 as the above-mentioned connecting member is swingably attached to the lower support portion 95a at the rear portion of the lower end portion 95 via a support shaft 96. That is, the front brake caliper 66 is attached to the caliper arm 97, and the tip of the secondary master cylinder 86 is attached to the tip of the caliper arm 97.

The front fork 95 has a front wheel 13 (see FIG. 1) attached to the lower end and a bar handle 14 (see FIG. 1) attached to the upper end.
The secondary master cylinder 86 includes a cylinder body 98 attached to an intermediate support portion 95b provided at the rear rear portion of the front fork 95, a piston (not shown) movably inserted into the cylinder body 98, and the piston. And a connecting end 103 that is attached to the tip of the push rod 101 and is connected to the caliper arm 97 with a pin 102.

Next, the operation of the caliper arm 97 described above will be described.
FIG. 4 is an operation diagram (first embodiment) showing an operation of the caliper arm according to the present invention.
When the left front brake 17 is operated while the motorcycle with a sidecar is traveling (forward), a braking force is generated by the front brake caliper 66 in the direction of arrow B with respect to the rotation of the brake disc 65 in the direction of arrow A, As a result, a braking reaction force R is generated in the front brake caliper 66 in the direction opposite to the arrow B. Due to this braking reaction force R, the caliper arm 97 swings in the direction of arrow C around the support shaft 96.

  Therefore, the push rod 101 connected to the tip of the caliper arm 97 is pushed upward to move the piston in the cylinder body 98 upward as indicated by the white arrow. Thereby, hydraulic pressure is generated in the brake fluid filled in the cylinder body 98.

Next, the operation of the brake device 55 described above will be described.
5 (a) and 5 (b) are operation diagrams showing the operation of the brake device (first embodiment) according to the present invention.
In (a), when the brake lever 16 is operated in the direction of the arrow, a hydraulic pressure is generated in the front master cylinder 61, and this hydraulic pressure is passed through the first brake pipe 62 (the portion indicated by a thick solid line). Are transmitted to the first cylinder portion 66a and the third cylinder portion 66c of the front brake caliper 66 and the first cylinder portion 72a and the third cylinder portion 72c of the front brake caliper 72, and are padded (not fixed) by the first piston 66d and the third piston 66f. The brake disc 65 is braked via the first piston 72d and the third piston 72f via the pad (not shown).

  At this time, by the braking reaction force generated in the front brake caliper 66, the push rod 101 of the secondary master cylinder 86 is pushed into the cylinder body 98 as indicated by the white arrow, and the piston moves to move the cylinder body. A hydraulic pressure is generated in 98, and this hydraulic pressure is transmitted through the third brake pipe 87 (the portion indicated by a thick one-dot chain line) and is reduced in pressure by the proportioning valve 88, and the side brake caliper 92 in the side car brake 46. The brake disc 91 is braked by a piston 92b via a pad (not shown).

  As described above, in the brake device 55, the left front brake 17, the right front brake 18, and the side car brake 46 can be simultaneously operated by operating the brake lever 16, and a vertical distribution load is applied to each of the front wheels and the rear wheels. When acting, since the distributed load of the rear wheels is reduced and the distributed load of the front wheels is increased and the braking force of the front wheels is increased, a large deceleration can be generated by the motorcycle with a sidecar.

  For example, when only the front wheels are braked without braking the sidecar wheels, the sidecar side moves forward relative to the motorcycle side, and a posture change occurs in which the motorcycle with a sidecar turns to the right. And since the sidecar wheels are braked simultaneously, the posture change can be effectively reduced.

  In (b), when the brake pedal 23 is operated in the direction of the arrow, a hydraulic pressure is generated in the rear master cylinder 75, and this hydraulic pressure is applied to the second rear brake pipe 76 (the portion indicated by a thick broken line). To the cylinder portion 82a of the rear brake caliper 82 in the rear brake 26, and the brake disc 81 is braked via a pad (not shown) by the piston 82b.

  At the same time, the hydraulic pressure generated in the rear master cylinder 75 is transmitted from the second rear brake pipe 76 to the second front brake pipe 77 (the portion indicated by a thick broken line), and the second piston 66e of the front brake caliper 66 is obtained. The brake disc 65 is braked via a pad (not shown), and the brake disc 71 is braked via a pad (not shown) by the second piston 72e of the front brake caliper 72.

  Further, as described above, the push rod 101 of the secondary master cylinder 86 is pushed into the cylinder body 98 by the braking reaction force generated in the front brake caliper 66 as shown by the white arrow, and the piston is moved. By moving, a hydraulic pressure is generated in the cylinder body 98, and this hydraulic pressure is transmitted through the third brake pipe 87 (the portion indicated by a thick one-dot chain line), and is reduced by the proportioning valve 88 to be sidecar brake. 46 is transmitted to the cylinder portion 92a of the side brake caliper 92, and the brake disc 91 is braked by a piston 92b via a pad (not shown).

  As described above, in the brake device 55, by operating the brake pedal 23, all of the left front brake 17, the right front brake 18, the rear brake 26, and the side car brake 46 are operated, and the front wheels, rear wheels, and side car wheels are operated. Can be braked, a large braking force can be obtained by a simple brake operation, and a larger deceleration of the motorcycle with a sidecar can be obtained.

FIG. 6 is a system diagram showing a brake device (second embodiment) for a motorcycle with a side car according to the present invention. The same components as those in the embodiment shown in FIG.
The brake device 110 is a two-system system including a first brake mechanism 56 that is operated by operating the brake lever 16 and a second brake mechanism 111 that is operated by operating the brake pedal 23.

  The second brake mechanism 111 includes a brake pedal 23, a rear master cylinder 75, a second rear brake pipe 76, a second front brake pipe 77, a left front brake 17, a right front brake 18, and a second rear brake pipe. A second side brake pipe 114 having one end connected to 76 and the other end connected to the side car brake 46, a proportioning valve 115 provided in the middle of the second side brake pipe 114, and the side car brake 46.

The second side brake pipe 114 has one end connected to the cylinder portion 92 a of the side car brake 46.
The proportioning valve 115 is a valve that reduces the output hydraulic pressure at a constant ratio with respect to the input hydraulic pressure, and reduces the hydraulic pressure of the cylinder portion 92 a of the side brake caliper 92 against the hydraulic pressure generated in the rear master cylinder 75. Depressurize at a constant rate.

Next, the operation of the brake device 110 described above will be described.
FIGS. 7A and 7B are operation diagrams showing the operation of the brake device (second embodiment) according to the present invention.
5A, when the brake lever 16 is operated in the direction of the arrow, the hydraulic pressure generated in the front master cylinder 61 is changed to the left side via the first brake pipe 62 in the same manner as described in FIG. It is transmitted to the front brake caliper 66 and the right front brake caliper 72, and brakes the left brake disc 65 and the right brake disc 71.

  At this time, by controlling the braking of the front brake caliper 66 and the front brake caliper 72 by the brake lever 16, the change in the posture in which the sidecar side moves forward relative to the motorcycle side and the motorcycle with sidecar turns right is controlled. be able to.

  In (b), as described with reference to FIG. 5 (b), when the brake pedal 23 is operated in the direction of the arrow, the hydraulic pressure generated in the rear master cylinder 75 is transferred to the rear via the second rear brake pipe 76. The brake disc 81 is braked by being transmitted to the rear brake caliper 82 of the brake 26.

  At the same time, the hydraulic pressure generated in the rear master cylinder 75 is transmitted from the second rear brake pipe 76 to the second front brake pipe 77 and brakes the brake disc 65 and the brake disc 71.

  5 (b) is different from FIG. 5 (b) in that the hydraulic pressure generated in the rear master cylinder 75 is transmitted from the second rear brake pipe 76 to the second side brake pipe 114 and is reduced in pressure by the proportioning valve 115. Is transmitted to the cylinder portion 92a of the side brake caliper 92, and the brake disc 91 is braked by a piston 92b via a pad (not shown).

As described above, in the brake device 110, by operating the brake pedal 23, all of the left front brake 17, the right front brake 18, the rear brake 26, and the side car brake 46 are operated, and the front wheel, the rear wheel, and the side car wheel are operated. Can be braked, a large braking force can be obtained by a simple brake operation, and a larger deceleration of the motorcycle with a sidecar can be obtained.
Further, if the brake lever 16 is also operated in addition to the brake pedal 23, the braking force of the front wheels is further increased, and the deceleration of the motorcycle with a side car can be further increased.

FIG. 8 is a system diagram showing a brake device (third embodiment) for a motorcycle with sidecars according to the present invention. The same components as those in the embodiment shown in FIG.
The brake device 120 includes a brake device 55 (see FIG. 2), a wheel speed sensor 121 for the front wheel 13, a wheel speed sensor 122 for the rear wheel 24, a first hydraulic pressure control unit 123, a second hydraulic pressure control unit 124, and The main control unit 125 is added, and these wheel speed sensors 121 and 122, the first hydraulic pressure control unit 123, the second hydraulic pressure control unit 124, and the main control unit 125 are an anti-lock brake system (ABS) 127. It constitutes.
The wheel speed sensor 121 detects the rotational speed of the front wheel 13, and the wheel speed sensor 122 detects the rotational speed of the rear wheel 24, and is, for example, a non-contact type utilizing a change in magnetic flux.

  The first hydraulic pressure control unit 123 is an actuator interposed in the middle of the first brake pipe 62 and the second front brake pipe 77, and controls the left front brake 17 and the right front brake 18 by increasing or decreasing the brake hydraulic pressure. Adjust the power.

  The second hydraulic pressure control unit 124 is an actuator interposed in the middle of the second rear brake pipe 76 and the third brake pipe 87, and increases or decreases the brake hydraulic pressure to increase the braking force of the rear brake 26 and the side car brake 46. Adjust at the same time and the same.

  Based on the rotational speed signals from the wheel speed sensors 121 and 122, the main control unit 125 determines the rotational speeds of the front wheels 13 and the rear wheels 24 and the outer diameters of the front wheels 13 and the rear wheels 24 when traveling. From the above, the moving speed of the front wheel 13 and the rear wheel 24 to the front of the vehicle, that is, the wheel speed, is calculated, the slip ratio is calculated from the wheel speed and the vehicle speed, and the first liquid is calculated based on the slip ratio. Control signals for increasing / decreasing the brake fluid pressure are sent to the pressure control unit 123 and the second fluid pressure control unit 124, respectively.

  Thus, the hydraulic pressure of the side car brake 46 is controlled based on the wheel speeds of the front wheel 13 and the rear wheel 24, and the hydraulic pressure control of the side car brake 46 is performed in the same manner as the hydraulic pressure control of the rear brake 26. Most of the hydraulic control of the brake device in the case of only the two-wheeled vehicle 11 can be used.

As shown in FIGS. 1 and 2, the present invention firstly has a front wheel 13 of a motorcycle 11 to which a side car 12 is coupled, a left front brake 17 as a front wheel brake, a right front brake 18, a rear wheel. 24 is provided with a rear brake 26 as a rear wheel brake, and two operating forces applied to the left lever brake 17, the right front brake 18 and the rear brake 26 to the brake lever 16, the brake pedal 23, etc. In the brake device 55 of the motorcycle 10 with a sidecar that can communicate with the left front brake 17, the right front brake 18, and the rear brake 26 through the paths of the brake mechanism 56 and the second brake mechanism 57), the side car 12 is provided. A sidecar brake 46 as a sidecar brake is provided on the wheel 45, and this support is provided. The braking force of de car brake 46, is generated on the basis of the braking force of the motorcycle 11, in conjunction with the braking of left front brake 17 and right front brake 18 generates a braking force of the sidecar brake 46, the left front brake 17 A secondary master cylinder 86 is connected to the front brake caliper 66 provided, a hydraulic pressure is generated in the secondary master cylinder 86 in conjunction with the operation of the front brake caliper 66, and this hydraulic pressure is transmitted to the sidecar brake 46. And

As a result, the side car brake 46 can be linked to the left / right front brakes 17, 18 or the rear brake 26, the operability of the brake operation can be improved, the brake operation is simplified, the front wheel 13, Since all the wheels 24 and the sidecar wheel 45 can be braked, the deceleration of the motorcycle 10 with a sidecar can be further increased, and the motorcycle 10 with a sidecar can be stopped at a shorter distance.
Further, the high braking force of the left front brake 17 and the right front brake 18 and the braking force of the side car brake 46 can make the deceleration of the motorcycle 10 with a side car larger than before.
Further, the hydraulic pressure path from the secondary master cylinder 86 to the side car brake 46 can be made independent of the respective hydraulic pressure paths of the left and right front brakes 17 and 18 and the rear brake 26, and the left front brake of the motorcycle 11 can be made. 17, the hydraulic pressure path of the side car brake 46 can be easily provided without processing the hydraulic pressure paths of the right front brake 18 and the rear brake 26.

Secondly, according to the present invention, a proportioning valve 88 for reducing the output hydraulic pressure at a constant ratio to the input hydraulic pressure is provided in the hydraulic pressure path between the secondary master cylinder 86 and the sidecar brake 46. Features.
Thereby, the braking force of the sidecar wheel 45 with respect to the braking force of the front wheel 13 can be appropriately controlled.

The present invention is the third, by operating the brake lever 16 to generate a hydraulic pressure in the front master cylinder 61 coupled to the brake lever 16, and inputs the fluid pressure to the left and right front brake calipers 66, 72 It is characterized by that.

  As a result, the front wheel 13 can be braked and the sidecar wheel 45 can be braked via the secondary master cylinder 86, and the front wheel 13 and the sidecar wheel 45 can be braked against the distributed load of the rear wheel 24 by braking. As a result, the distributed load 13 is increased and a large braking force can be obtained.

The present invention is in the fourth, by operating the brake pedal 23, to generate a hydraulic pressure in the rear master cylinder 75 coupled to the brake pedal 23, the left and right front brake calipers 17, 18 and the rear brake the hydraulic 26 is input to a rear brake caliper 82 constituting the H.26.

  As a result, the front wheel 13 and the rear wheel 24 can be braked, and the sidecar wheel 45 can be braked via the secondary master cylinder 86, so that a higher braking force can be obtained. A large deceleration can be generated.

In the fifth aspect of the present invention , as shown in FIGS. 1 and 6, a rear master cylinder 75 that generates hydraulic pressure for operating the rear brake 26 is connected to the brake pedal 23. The generated hydraulic pressure is also distributed to the sidecar brake 46 that brakes the sidecar wheel 45.

  As a result, when the brake pedal 23 is operated, all of the front wheels 13, the rear wheels 24, and the sidecar wheels 45 can be braked, and the operability of the brake operation can be improved. The deceleration of the can be increased.

In the sixth aspect of the present invention , as shown in FIGS. 1 and 2, hydraulic pressure is generated in the secondary master cylinder 86 by the braking reaction force of the left front brake 17, and this hydraulic pressure is used as a sidecar brake as a sidecar brake. 46 is input to a side brake caliper 92 as a brake caliper for a side car constituting 46.

  As a result, the sidecar wheel 45 is braked by the braking reaction force of the left front brake 17 by operating the left front brake 17 or the rear brake 26, so that the operability of the brake operation can be improved and the automatic operation with the sidecar is performed. The deceleration of the two-wheeled vehicle 10 can be further increased.

Seventh, the present invention controls the hydraulic pressure of the sidecar brake 46 based on the speed of at least two of the front wheels 13, the rear wheels 24, and the sidecar wheels 45, as shown in FIG. By providing the second hydraulic pressure control unit 124, the braking force of the sidecar brake 46 is controlled.

  Since the second hydraulic pressure control unit 124 controls the hydraulic pressure of the side car brake 46 based on the speeds of at least two wheels, the control can be simplified.

Eighth, in the present invention, wheel speed sensors 121 and 122 for detecting the speeds of at least two wheels are provided on the front wheel 13 and the rear wheel 24. In the sidecar brake 46, the second hydraulic pressure control unit 124 and the rear brake 26 The same hydraulic pressure control is performed.

  It is not necessary to provide a wheel speed sensor on the side 8-wheel 45, and the structure of the brake device 120 can be simplified. In addition, since the side hydraulic brake 46 and the rear brake 26 are hydraulically controlled by the second hydraulic pressure control unit 124, the control can be further simplified.

Ninthly , the present invention is characterized in that the sidecar brake 46 is connected to the secondary master cylinder 86 via the second hydraulic pressure control unit 124.
By operating at least one of the brake lever 16 and the brake pedal 23, the sidecar brake 46 can be operated via the second hydraulic pressure control unit 124, and the braking force of the sidecar wheel 45 can be sufficiently secured by one operation. Can do.

  In the present embodiment, as shown in FIG. 2, the secondary master cylinder 86 is connected to the left front brake 17 via a connecting member. However, the present invention is not limited to this, and the right front brake 18 is connected via a connecting member. The secondary master cylinder 86 may be connected.

  The brake device of the present invention is suitable for a motorcycle with a sidecar.

1 is a plan view of a motorcycle with a sidecar equipped with a brake device according to the present invention. 1 is a system diagram of a braking device (first embodiment) for a motorcycle with a sidecar according to the present invention. FIG. 1 is a side view of a main part of a motorcycle showing a connecting member of a brake device (first embodiment) according to the present invention. It is an operation | movement figure (1st Embodiment) which shows the effect | action of the caliper arm concerning this invention. It is an operation view showing an operation of the brake device (first embodiment) according to the present invention. It is a systematic diagram showing a brake device (second embodiment) of a motorcycle with a sidecar according to the present invention. It is an operation | movement figure which shows the effect | action of the brake device (2nd Embodiment) which concerns on this invention. It is a systematic diagram showing a brake device (third embodiment) of a motorcycle with a sidecar according to the present invention.

  DESCRIPTION OF SYMBOLS 10 ... Motorcycle with side car, 11 ... Motorcycle, 12 ... Side car, 13 ... Front wheel, 16 ... Brake lever, 17, 18 ... Front wheel brake (left front brake, right front brake), 23 ... Brake pedal, 24 ... Rear Wheels, 26 ... brake for rear wheels (rear brake), 45 ... wheels provided for sidecars, 46 ... brakes for sidecars (sidecar brakes), 55,110 ... brake devices, 61 ... front master cylinders, 66,72 ... front brake calipers 75 ... Rear master cylinder, 82 ... Rear brake caliper, 86 ... Secondary master cylinder, 88 ... Proportioning valve, 92 ... Side car brake caliper (side brake caliper), 121, 122 ... Wheel speed sensor, 123, 124 ... Hydraulic pressure control unit (first hydraulic pressure control unit The second hydraulic pressure control section).

Claims (9)

A front wheel brake (17, 18) is provided on the front wheel (13) of the motorcycle (11) to which the side car (12) is coupled, and a rear wheel brake (26) is provided on the rear wheel (24). 17, 18), the operating force applied to the brake lever (16), the brake pedal (23), etc. is transmitted to the rear wheel brake (26) through two routes, and the front wheel brake (17) and the rear wheel In a brake device for a motorcycle with a sidecar capable of interlocking with a brake (26) for a vehicle,
A side car brake (46) is provided on a wheel (45) provided in the side car (12), and a braking force of the side car brake (46) is generated based on a braking force of the motorcycle .
Generating a braking force of the sidecar brake (46) in conjunction with the braking of the front wheel brakes (17, 18);
A secondary master cylinder (86) is coupled to a front brake caliper (72) provided for the front wheel brakes (17, 18),
In the secondary master cylinder (86), hydraulic pressure is generated in conjunction with the operation of the front brake caliper (72),
This hydraulic pressure is transmitted to the sidecar brake (46).
A braking device for a motorcycle with a sidecar characterized by the above. A proportioning valve (88) for reducing the output hydraulic pressure at a constant ratio to the input hydraulic pressure is provided in the hydraulic pressure path between the secondary master cylinder (86) and the sidecar brake (46). The braking device for a motorcycle with a sidecar according to claim 1 . By operating the brake lever (16), a hydraulic pressure is generated in the front master cylinder (61) connected to the brake lever (16), and this hydraulic pressure is input to the front brake caliper (72). The braking device for a motorcycle with a sidecar according to claim 1 or 2, characterized in that it is characterized in that: By operating the brake pedal (23), hydraulic pressure is generated in the rear master cylinder (75) connected to the brake pedal (23), and this hydraulic pressure is applied to the front brake caliper (72) and the rear wheel. The brake device for a motorcycle with a sidecar according to any one of claims 1 to 3 , wherein the brake device is inputted to a rear brake caliper (82) constituting the brake (26). Wherein the brake pedal (23), connecting the rear master cylinder (75) for generating a hydraulic pressure for actuating the brake (26) for the rear wheel, sidecar the hydraulic pressure generated in the rear master cylinder (75) 2. The brake device for a motorcycle with a side car according to claim 1 , wherein the brake device is also distributed to the brake for the side car (46) for braking the vehicle wheel (45). A hydraulic pressure is generated in the secondary master cylinder (86) by the braking reaction force of the brakes for the front wheels (17, 18), and this hydraulic pressure constitutes a sidecar brake (46) for braking the sidecar wheels (45). The brake device for a motorcycle with a sidecar according to claim 1 , wherein the brake device is input to a brake caliper (92) for the sidecar. A hydraulic pressure control unit for controlling the hydraulic pressure of the side car brake (46) based on the speed of at least two of the front wheel (13), the rear wheel (24) and the side car wheel (45). The brake device for a motorcycle with a sidecar according to any one of claims 1 to 6 , wherein the braking force of the brake for the sidecar (46) is controlled by providing 124). Wheel speed sensors (121, 122) for detecting the speeds of the at least two wheels are provided on the front wheel (13) and the rear wheel (24), and the brake for the side car (46) is connected to the hydraulic pressure control unit. 8. The brake device for a motorcycle with a sidecar according to claim 7, wherein the same hydraulic pressure control as that of the rear wheel brake (26) is performed by (124). The motorcycle with a sidecar according to claim 7 or 8 , wherein the brake for the sidecar (46) is connected to the secondary master cylinder (86) through the hydraulic pressure control unit (124). Brake equipment.

Images