JP4206181B2 - Interlocking brake device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention enables a master cylinder connected to a hydraulic wheel brake to be operated according to the brake operation of the independent brake operator and the interlock brake operator, and the master cylinder and the mechanical type when the interlock brake operator is braked. The present invention relates to an improvement of an interlocking brake device capable of exerting a brake operating force on a wheel brake.
[0002]
[Prior art]
  Conventionally, such an interlocking brake device is already known, for example, in JP-A-11-91673.
[0003]
[Problems to be solved by the invention]
  In the conventional interlocking brake device, a knocker that rotates in response to the brake operation of the independent and interlocking brake operator is rotatably supported on the cylinder body of the master cylinder. The piston of the master cylinder is pressed. That is, the knocker is composed of a pair of levers arranged on both sides of the operating axis of the piston and a push pin that has an axis perpendicular to the operating axis and connects the two levers.
[0004]
  In such a conventional interlocking brake device, the knocker is composed of a plurality of parts, and the structure of the knocker is complicated.
[0005]
  The present invention has been made in view of such circumstances, and an object thereof is to provide an interlocking brake device in which a knocker for pushing a piston of a master cylinder has a simple configuration with a small number of parts.
[0006]
[Means for solving the problems]
  In order to achieve the above object, the invention according to claim 1 is a master cylinder in which a piston having a front face facing a hydraulic chamber connected to a hydraulic wheel brake is slidably fitted to a cylinder body. , A knocker capable of pressing the rear end of the piston rod connected to the piston, an independent brake operator and an interlock brake operator capable of operating a brake independently of each other, and a brake operation of the interlock brake operator Load distribution that distributes operating force at a preset distribution ratio to the mechanical wheel brake side and the knocker sideleverAnd independent brake operator and load distributionleverThe mutual brake operator and the load distribution avoiding mutual interferenceleverAnd a connecting means for connecting the knocker to the knocker, wherein the single-part knocker that is in direct contact with the rear end of the piston rod rotates around an axis perpendicular to a plane including the operating axis of the piston. Supported by the cylinder bodyThe load distribution lever and the connecting means are disposed on one side of the one plane, and a reservoir tank formed integrally with the cylinder body is disposed on the other side of the one plane. A first connecting member connected to the other end of the first input cable having one end connected to the independent brake operator, and the load connected to the first connecting member so as to overlap the opposite side of the one plane. A second connecting member connected to one end of the distribution lever, and a first connecting member that is provided in common to the first and second connecting members and extends from the knocker on the one side of the one plane in a direction perpendicular to the one plane. A connecting pin, and the first and second connecting members are connected to the knocker through the connecting pin so as to avoid the mutual interference, and an intermediate portion of the load distribution lever has an interlocking brake operation. One end to the child Continued the other end of the second input cables, also the other end of the lever, the mechanical wheel brakes The other end of the output cable having one end connected to each other is connected to the cylinder body, and the cylinder body has a first cable support portion that penetrates and supports the first input cable on the one side of the one plane. And a second cable support portion that penetrates and supports the second input cable on a side farther from the one plane than the first cable support portion on the one side.It is characterized by that.
[0007]
  According to such a configuration, since the piston rod of the master cylinder is directly pressed with a knocker that is a single component, the number of components can be reduced, and the configuration of the knocker can be simplified.Further, since the load distribution lever and the connecting means (first and second connecting members, connecting pins) are arranged on one side of the one plane including the operating axis of the piston, the operation is performed among the components of the interlocking brake device. The parts can be arranged in a concentrated manner, and the layout when the interlock brake device is assembled to the vehicle becomes easy. In addition, since the reservoir tank formed integrally with the cylinder body is arranged on the other side of the one plane, it is possible to arrange the reservoir tank without being restricted by the layout of the operation part among the components of the interlocking brake device. In addition, the volume of the reservoir tank can be set large, and the master cylinder, the reservoir tank, the load distribution lever and the connecting means can be arranged compactly as a whole.
[0008]
  The invention according to claim 2 is characterized in that, in addition to the structure of the invention according to claim 1, the knocker is formed in a flat plate shape along the one plane including the operating axis of the piston. Accordingly, the knocker can be configured compactly while simplifying the shape thereof.
[0009]
  The invention according to claim 3 is in addition to the configuration of the invention according to claim 1 or 2,On the one side of the one plane, a spring is provided between the cylinder body and the second coupling member to urge the second coupling member in a direction opposite to the brake operation direction by the independent brake operator.It is characterized by that.
[0010]
  In addition to the structure of the said invention of Claims 1-3, the invention of Claim 4 isA first brake switch including a first detector that can contact a first detected portion that protrudes from an intermediate portion of the load distribution lever, and a second detector that can contact a second detected portion provided in the knocker. And a second brake switch that is supported by a switch support provided in the cylinder body.The invention according to claim 5 is characterized in that, in addition to the configuration of the invention according to claims 1 to 4,The reservoir tank is provided with a viewing window on the side surface opposite to the one plane.It is characterized by that.
[0011]
  According to a sixth aspect of the present invention, in addition to the configuration of the first to fourth aspects of the present invention, a pipe joint whose outer end extends along the one plane is attached to the cylinder body. A hydraulic hose to be connected communicates with the hydraulic chamber through the pipe joint.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
  Embodiments of the present invention will be described below based on one embodiment of the present invention shown in the accompanying drawings.
[0013]
  1 to 9 show one embodiment of the present invention, FIG. 1 is a side view of a motorcycle, FIG. 2 is a diagram showing the overall configuration of an interlocking brake device, and FIG. 3 is an enlarged side view of a master cylinder unit. 4 is a view taken along the arrow 4 in FIG. 3, FIG. 5 is a view taken along the arrow 5 in FIG. 3, FIG. 6 is a cross-sectional view taken along the line 6-6 in FIG. 8 shows the operating state in the operating state of the independent brake operator, (a) is a diagram corresponding to FIG. 3, (b) is a diagram corresponding to FIG. 7, and FIG. 9 is an operation of the interlocking brake operator. FIG. 8 shows an operation state in a state, (a) is a diagram corresponding to FIG. 3, and (b) is a diagram corresponding to FIG. 7.
[0014]
  First, in FIG. 1, a body frame 11 of a scooter type motorcycle includes a front frame 12 and a rear frame 13 fastened to a rear portion of the front frame 12. The front frame 12 includes a head pipe portion 12a that supports the steering stem 14a of the front fork 14 that pivotally supports the front wheel WF, a down tube portion 12b that extends downward from the head pipe portion 12a, and the down tube A bottom portion 12c extending rearward from the lower end of the portion 12b is integrally formed, and a bar-type steering handle 15 is connected to the upper end of the steering stem 14a.
[0015]
  The rear frame 13 is formed to extend upward from the rear portion of the bottom portion 12c and to incline backward from the middle. A power unit 16 that supports and drives the rear wheel WR is supported at an intermediate portion of the rear frame 13 so as to be able to swing up and down, and a rear cushion 17 is provided between the intermediate portion of the rear frame 13 and the power unit 16. A storage box 18 for storing a helmet or the like is provided on the rear frame 13, and a seat 19 serving also as a lid is disposed on the storage box 18.
[0016]
  Referring also to FIG. 2, the steering handle 15 is supported by an independent brake lever 21 as an independent brake operator adjacent to the right grip 20R so as to be able to perform a brake operation. An interlocking brake lever 22 as an interlocking brake operator is pivotally supported adjacently so that the brake operation is possible.
[0017]
  On the other hand, a disc brake BF, which is a hydraulic wheel brake, is mounted on the front wheel WF, and a drum brake BR, which is a mechanical wheel brake, is mounted on the rear wheel WR. The brake BF can be operated independently, and the disc brake BF and the drum brake BR can be operated in an interlocking manner by operating the interlocking brake lever 22.
[0018]
  A master cylinder unit 23 is attached to the head pipe portion 12 a of the front frame 12 in the vehicle body frame 11, and brake fluid pressure is applied from the master cylinder unit 23 to the disc brake BF in accordance with the brake operation of the independent brake lever 21. The brake fluid pressure is supplied to the disc brake BF from the master cylinder unit 23 according to the brake operation of the interlocking brake lever 22, and the traction force acts on the drum brake BR.
[0019]
  3 to 7, the master cylinder unit 23 includes a master cylinder 24 that can output brake fluid pressure, a knocker 25 that applies a pressing force to the master cylinder 24, a reservoir tank 26, and a brake operation of the interlock brake lever 22. In response to this, mutual interference between the load distribution lever 27 as load distribution means for distributing the operation force at a preset ratio to the drum brake BR side and the knocker 25 side, and the independent brake lever 21 and the load distribution lever 27 occurs. The connecting means 28 for connecting the independent brake lever 21 and the load distribution lever 27 to the knocker 25 while avoiding them is formed as a unit.
[0020]
  The master cylinder 24 is a piston having a front surface, that is, an upper surface, facing a hydraulic pressure chamber 32 on a cylinder body 30 that is formed in a cylindrical shape that extends vertically when the master cylinder unit 23 is attached to the vehicle body frame 11 and whose upper end is closed. 31 is slidably fitted. The hydraulic chamber 32 is formed between the upper end closing portion of the cylinder body 30 and the upper surface of the piston 31, and in this hydraulic chamber 32, a return spring 33 that biases the piston 31 rearward, that is, downward. Is stored. Moreover, a retaining ring 39 that restricts the retreat limit of the piston 31 is attached to the rear end of the cylinder body 30, that is, the lower end opening.
[0021]
  One end of a hydraulic hose 34 leading to the hydraulic chamber 32 is connected to the upper end of the cylinder body 30 via a banjo-type pipe joint 35, and the other end of the hydraulic hose 34 is connected to the disc brake BF. The That is, the hydraulic chamber 32 is connected to the disc brake BF.
[0022]
  An annular recess 36 is provided on the outer surface of the piston 31, and a pair of cup seals 37 and 38 are attached to the outer surface of the piston 31 so as to sandwich the annular recess 36 from both axial sides of the piston 31. Moreover, the cup seal 37 disposed between the annular recess 36 and the hydraulic pressure chamber 32 of the cup seals 37 and 38 has an annular recess 36 when the hydraulic pressure in the hydraulic pressure chamber 32 is lower than the hydraulic pressure in the annular recess 36. Allows the brake fluid to flow from the hydraulic chamber 32 to the hydraulic chamber 32.
[0023]
  The cylinder body 30 is integrally formed with a reservoir tank 26 that extends vertically when the master cylinder unit 23 is attached to the vehicle body frame 11 and has a closed bottom end. The part is closed with a lid member 40.
[0024]
  In the reservoir tank 26, in order to prevent the brake fluid in the reservoir tank 26 from contacting the outside air as much as possible, the pressure acting on the brake fluid does not change according to the change in the fluid amount. The diaphragm 41 is housed in a flange 41a provided at the upper end of the diaphragm 41 and a pressing plate 42 placed on the flange 41a. The diaphragm 41 is sandwiched between the reservoir tank 26 and the lid member 40. . In addition, a communication hole 43 that communicates with the inside of the diaphragm 41 is provided at the center of the pressing plate 42, and a passage 44 that communicates with the communication hole 43 is formed between the pressing plate 42 and the lid member 40. The lid member 40 is opened to the outside on the side surface.
[0025]
  A viewing window 45 is provided at an intermediate portion in the vertical direction of the reservoir tank 26, and this viewing window 45 is liquid-tightly closed by a light-transmitting plate 46 made of glass or synthetic resin. The situation in the reservoir tank 26 can be visually confirmed.
[0026]
  A replenishment port 47 for supplying brake fluid in the reservoir tank 26 to the annular recess 36 is provided at the lower portion of the reservoir tank 26, and the hydraulic chamber is in a state where the piston 31 is in the retreat limit as shown in FIG. A relief port 48 is provided for communicating 32 to the reservoir tank 26.
[0027]
  A piston rod 31 a extending rearward or downward is integrally and coaxially connected to the piston 31, and the rear end of the piston rod 31 a protrudes rearward or downward from the cylinder body 30.
[0028]
  The knocker 25 can press the rear end of the piston rod 31 a, and a support shaft having an axis perpendicular to a plane P including the operating axis of the piston 31 is provided at a knocker support portion 30 a provided integrally with the lower end of the cylinder body 30. One end of the knocker 25 is rotatably supported via 49. In addition, the knocker 25 is a component formed in a flat plate shape along the one plane P, and a pressing portion 25a that directly contacts the rear end of the piston rod 31a is formed integrally with the intermediate portion of the knocker 25.
[0029]
  The connecting means 28 includes a first connecting member 50 that extends vertically, a second connecting member 51 that extends longer than the first connecting member 50 and overlaps the first connecting member 50, the cylinder body 30, and The torsion spring 52 provided between the second connecting members 51 is disposed on one side of the one plane P.
[0030]
  A first long hole 53 extending vertically is provided in the lower part of the first connecting member 50, and a connecting pin 54 provided at the other end of the knocker 25 is inserted into the first long hole 53. The second connecting member 51 is also provided with a second long hole 55 having the same width as the first long hole 53 extending vertically, and the connecting pin 54 is also inserted into the second long hole 55. In addition, the intermediate portion of the connecting pin 54 has an enlarged diameter portion 54a for sliding the stepped portions at both ends to the opposing surfaces of the first and second connecting members 50 and 51 at the side edges of the first and second elongated holes 53 and 55. Provided.
[0031]
  By the way, one end of the first input cable 58 is connected to the independent brake lever 21, and a columnar connection terminal 59 provided at the other end of the first input cable 58 is fitted to the upper portion of the first connecting member 50. Connected. The first input cable 58 passes through the first cable support 30b formed integrally with the cylinder body 30, and the end of the guide tube 60 surrounding the first input cable 58 is the first cable support. 30b is contacted and supported.
[0032]
  The load distribution lever 27 is arranged so as to extend in the lateral direction on the same side as the connecting means 28 with respect to the one plane P including the operation axis of the piston 31. That is, the load distribution lever 27 and the connecting means 28 are arranged on one side with respect to the one plane P including the operation axis of the piston 31, and the reservoir tank 26 is arranged on the other side with respect to the one plane P.
[0033]
  One end of the load distribution lever 27 is connected to the upper portion of the second connecting member 51 in the connecting means 28 via a connecting pin 61.
[0034]
  One end of the second input cable 62 is connected to the interlocking brake lever 22, and a cylindrical connection terminal 63 provided at the other end of the second input cable 62 is fitted and connected to the intermediate portion of the load distribution lever 27. Is done. The second input cable 62 passes through the second cable support 30c formed integrally with the cylinder body 30, and the end of the guide tube 64 surrounding the second input cable 62 is the second cable support. 30c is contacted and supported.
[0035]
  The other end portion of the load distribution lever 27 is fitted and connected to a columnar connection terminal 66 provided at one end of the output cable 65 penetrating the second cable support portion 30d formed integrally with the cylinder body 30, An end portion of the guide tube 67 surrounding the output cable 65 is in contact with and supported by the third cable support portion 30d. The other end of the output cable 65 is connected to the operation lever 68 of the drum brake BR.
[0036]
  By the way, the torsion spring 52 in the connecting means 28 surrounds the support shaft 49 so that one end engages and connects with the second connecting member 51 and the other end contacts and engages with the cylinder body 30. The spring force exerted by the torsion spring 52 urges the second connecting member 51 to move downward, and the load distribution lever 27 connected to the second connecting member 51 has its one end positioned at the lower position. Will be energized. Thus, the cylinder body 30 is in contact with the lower surface of one end side of the load distribution lever 27 to restrict the downward movement of the second connecting member 51 and the downward movement of one end side of the load distribution lever 27. Is integrally projected.
[0037]
  The first cable support 30b that supports the guide tube 60 of the first input cable 58 extends to above the second connecting member 51, and the upper end of the second connecting member 51 contacts the second cable supporting 30b. By contact, the upward movement of the second connecting member 51 and the upward movement of one end side of the load distribution lever 27 are restricted.
[0038]
  According to the load distribution lever 27 and the connecting means 28, when the independent brake lever 21 is operated, the first input cable 58 is pulled as shown in FIGS. 8A and 8B. The first connecting member 50 in the connecting means 28 is pulled upward. The upward movement of the first connecting member 50 is transmitted to the knocker 25 via the connecting pin 54 engaged with the lower edge of the first long hole 53, and the knocker 25 presses the piston rod 31 a in the master cylinder 24. As a result, the brake hydraulic pressure generated in the hydraulic pressure chamber 32 of the master cylinder 24 acts on the disc brake BF. At this time, the connecting pin 54 only moves upward in the second elongated hole 55 of the second connecting member 51, the second connecting member 51 does not move upward, and the load distribution lever 27 is connected from the connecting means 28. The brake operating force of the independent brake lever 21 does not reach the side.
[0039]
  Further, the operation state at the time of the brake operation of the interlocking brake lever 22 will be described with reference to FIGS. 9A and 9B. The second input cable 62 is pulled by the brake operation of the interlocking brake lever 22. When the intermediate portion of the load distribution lever 27 is pulled upward, initially, the spring force of the torsion spring 52 acts on one end side of the load distribution lever 27, so that the load distribution lever 27 is connected to the connecting pin on one end side thereof. It rotates as shown by the chain line in FIG. As a result, the output cable 65 is pulled, and the drum brake BR mounted on the rear wheel WR is braked prior to the disc brake BF of the front wheel WF. In this way, delaying the operation timing of the disc brake BF of the front wheel WF relative to the drum brake BR of the rear wheel WR is effective in obtaining a good brake feeling of the motorcycle.
[0040]
  When the force applied to the second connecting member 51 from the second input cable 62 via the load distribution lever 27 exceeds the set load of the torsion spring 52 by increasing the brake operation force of the interlocking brake lever 22, FIG. As indicated by the solid line in a), the entire load distribution lever 27 is pulled up, and the distance between the connection pin 61 and the connection terminal 63 and the connection terminals 63 and 66 are connected to the second connection member 51 and the output cable 65. The operating force acts at a distribution ratio corresponding to the distance ratio. As a result, the drum brake BR of the rear wheel WR continues to operate, and the second connecting member 51 is lifted upward, and the connecting pin 54 engaged with the lower edge of the second long hole 55 is thereby received. Thus, the knocker 25 rotates around the axis of the support shaft 49 to press the piston rod 31a, and the brake fluid pressure generated in the fluid pressure chamber 32 acts on the disc brake BF. At this time, the connecting pin 54 only moves upward in the first long hole 53 of the first connecting member 50, and the first connecting member 50 does not move upward, and the independent brake lever 21 is connected from the connecting means 28. The side is not affected.
[0041]
  Further, by further increasing the brake operating force of the interlocking brake lever 22, when the second connecting member 51 comes into contact with the first cable support portion 30b and the upward movement of the second connecting member 51 is restricted, load distribution is performed. The lever 27 is further rotatable with the connecting pin 61 as a fulcrum. Therefore, it is possible to further increase the braking force by the drum brake BR of the rear wheel WR, and to secure the braking force on the rear wheel WR side even if the disc brake BF of the front wheel WF becomes malfunctioning due to fluid pressure failure or the like. be able to.
[0042]
  A detected portion 27a protruding downward is integrally provided at an intermediate portion of the load distribution lever 27, and a first brake switch 70 including a detector 70a that contacts the detected portion 27a is provided on the cylinder body 30. It is supported by the first switch support 30e. Further, the other end portion of the knocker 25 is integrally provided with a detected portion 25a having a substantially L-shaped cross section, and a second brake switch 71 having a detector 71a that contacts the detected portion 25a. It is supported by a second switch support portion 30f provided in the cylinder body 30.
[0043]
  Thus, the first brake switch 70 detects that the load distribution lever 27 is turned upward in response to the brake operation of the interlock brake lever 22, and the second brake switch 71 is connected to the independent brake lever 21 and the interlock brake lever. It is detected that the knocker 25 is rotated to press the piston rod 31a in response to the brake operation of at least one of the two.
[0044]
  Next, the operation of this embodiment will be described. A single-part knocker 25 that is in direct contact with the rear end of the piston rod 31a in the master cylinder 24 rotates around an axis perpendicular to a plane P including the operating axis of the piston 31. Since it is supported by the cylinder body 30 so that it can move, the piston rod 31a of the master cylinder 24 is directly pressed by the knocker 25 which is a single component, and the number of components is reduced compared to a configuration in which a knocker is constituted by a plurality of components. In addition, the configuration of the knocker 25 can be simplified.
[0045]
  Further, since the knocker 25 is formed in a flat plate shape along the one plane P, it is possible to make the knocker 25 compact while simplifying the shape of the knocker 25.
[0046]
  Further, since the reservoir tank 26 is formed integrally with the cylinder body 30, the master cylinder 24 and the reservoir tank 26 can be configured in a compact manner.
[0047]
  Further, since the load distribution lever 27 and the connecting means 28 are arranged on one side of the one plane P, it becomes possible to collect and arrange the operation parts among the components of the interlocking brake device, and the vehicle of the interlocking brake device. The layout at the time of assembly is easy.
[0048]
  Further, since the reservoir tank 26 is disposed on the other side of the one plane P, the reservoir tank 26 can be disposed without being restricted by the layout of the operation part among the components of the interlocking brake device. The volume of 26 can be set large. Moreover, the master cylinder 24, the reservoir tank 26, the load distribution lever 27, and the connecting means 28 can be arranged compactly as a whole.
[0049]
  Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the present invention described in the claims. Is possible.
[0050]
【The invention's effect】
  As described above, according to the first aspect of the present invention, the number of parts can be reduced by directly pushing the piston rod of the master cylinder with a knocker that is a single part, and the structure of the knocker can be simplified. it can.In particular, since the load distribution lever and the connecting means (first and second connecting members, connecting pins) are arranged on one side of a plane including the operating axis of the piston, the operating portion of the components of the interlocking brake device is They can be arranged in a centralized manner, facilitating the layout when the interlock brake device is assembled to the vehicle. In addition, since the reservoir tank formed integrally with the cylinder body is arranged on the other side of the one plane, it is possible to arrange the reservoir tank without being restricted by the layout of the operation part among the components of the interlocking brake device. In addition, the volume of the reservoir tank can be set large, and the master cylinder, reservoir tank, load distribution lever, and connecting means can be arranged compactly as a whole.
[0051]
  According to the invention described in claim 2, the knocker can be configured compactly while simplifying its shape..
[Brief description of the drawings]
FIG. 1 is a side view of a motorcycle.
FIG. 2 is a diagram showing an overall configuration of an interlocking brake device.
FIG. 3 is an enlarged side view of a master cylinder unit.
4 is a view taken in the direction of arrow 4 in FIG.
FIG. 5 is a view taken in the direction of arrow 5 in FIG. 3;
6 is a cross-sectional view taken along line 6-6 of FIG.
7 is a cross-sectional view taken along line 7-7 in FIG.
FIGS. 8A and 8B show an operation state in an operating state of an independent brake operator, where FIG. 8A is a diagram corresponding to FIG. 3 and FIG. 8B is a diagram corresponding to FIG.
FIGS. 9A and 9B show an operating state in an operating state of the interlocking brake operator, where FIG. 9A corresponds to FIG. 3 and FIG. 9B corresponds to FIG.
[Explanation of symbols]
21: Independent brake lever as an independent brake operator
22 ... Interlocking brake lever as interlocking brake operator
24 ... Master cylinder
25 ... knocker
25a .. 2nd detected part
26 ... Reservoir tank
27 ...loadHeavy distribution lever
27a .. First detected part
28. Connection means
30 ... Cylinder body
30b .. 1st cable support part
30c ··· Second cable support
31 ... Piston
31a ・ ・ Piston rod
32 ... Hydraulic chamber
34 ... Hydraulic hose
35 ... Fittings
45 ... Peeping window
50 ... 1st connection member
51 ... 2nd connection member
52 ... Spring
58 ... 1st input cable
62 ... Second input cable
65 ... Output cable
70 ... 1st brake switch
70a .. First detector
71 ... 2nd brake switch
71a .. Second detector
BF: Disc brake as a hydraulic wheel brake
BR: Drum brake as a mechanical wheel brake
P ... Plane

Claims (6)

A master cylinder (24) in which a piston (31) facing the front of a hydraulic chamber (32) connected to a hydraulic wheel brake (BF) is slidably fitted to a cylinder body (30); A knocker (25) capable of pressing the rear end of the piston rod (31a) connected to the piston (31), an independent brake operator (21) and an interlocking brake operator ( 22) and a load distribution lever (27) that distributes the operation force at a predetermined distribution ratio to the mechanical wheel brake (BR) side and the knocker (25) side according to the brake operation of the interlocking brake operator (22). a) independent brake operator (21) and the load distribution lever (27) said by avoiding mutual interference the independent brake operating element (21) and the load distribution lever (27) between knocker (25 In the interlocking brake system and a connecting means for connecting (28) to,
The single knocker (25) in direct contact with the rear end of the piston rod (31a) enables rotation about an axis perpendicular to a plane (P) including the operating axis of the piston (31). is supported on the cylinder body (30) Rutotomoni, said one plane the load distribution lever on one side of the (P) (27) and said connecting means (28), also on the other side of the one plane (P) Are respectively provided with reservoir tanks (26) formed integrally with the cylinder body (30),
The connecting means (28) includes a first connecting member (50) connected to the other end of the first input cable (58) having one end connected to the independent brake operator (21), and the first connecting member (50). ), A second connecting member (51) which is disposed so as to overlap with the one plane (P) and connected to one end of the load distribution lever (27), and the first and second connecting members. A connecting pin (54) provided in common to the members (50, 51) and extending from the knocker (25) in a direction perpendicular to the one plane (P) on the one side of the one plane (P); The first and second connecting members (50, 51) are connected to the knocker (25) through the connecting pins (54) so as to avoid the mutual interference.
At the middle of the load distribution lever (27), the other end of the second input cable (62) having one end connected to the interlocking brake operator (22) is connected to the other end of the lever (27). The other end of the output cable (65) having one end connected to the mechanical wheel brake (BR) is connected to each other,
The cylinder body (30) includes a first cable support portion (30b) that penetrates and supports the first input cable (58) on the one side of the one plane (P), and the one plane (P). And the second cable support (30c) that penetrates and supports the second input cable (62) on the side farther from the one plane (P) than the first cable support (30b) on the one side. An interlocking brake device characterized by being provided .   The interlock brake device according to claim 1, wherein the knocker (25) is formed in a flat plate shape along the one plane (P) including an operation axis of the piston (31). On the one side of the one plane (P), between the cylinder body (30) and the second connecting member (51), the second connecting member (51) is braked by an independent brake operator (21). spring (52) for biasing in opposite directions, characterized in Rukoto provided with, interlocking brake system according to claim 1 or 2 wherein. A first brake switch (70) having a first detector (70a) capable of contacting a first detected part (27a) protruding from an intermediate part of the load distribution lever (27), and a knocker (25) A second brake switch (71) having a second detector (71a) capable of contacting the provided second detected part (25a) and a switch support (30e, 30f) provided on the cylinder body (30) The interlocking brake device according to any one of claims 1 to 3, wherein the interlocking brake device is supported by . The interlock brake device according to any one of claims 1 to 4, wherein the reservoir tank (26) is provided with a viewing window (45) on a side surface opposite to the one plane (P). . A pipe joint (35) whose outer end extends along the one plane (P) is attached to the cylinder body (30), and a hydraulic hose (34) connected to the pipe joint (35) is provided in the cylinder body (30). The interlocking brake device according to claim 1, wherein the interlocking brake device communicates with the hydraulic pressure chamber (32) via the pipe joint (35).

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