WO2013035458A1 - キャリパブレーキ装置 - Google Patents
キャリパブレーキ装置 Download PDFInfo
- Publication number
- WO2013035458A1 WO2013035458A1 PCT/JP2012/069296 JP2012069296W WO2013035458A1 WO 2013035458 A1 WO2013035458 A1 WO 2013035458A1 JP 2012069296 W JP2012069296 W JP 2012069296W WO 2013035458 A1 WO2013035458 A1 WO 2013035458A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- caliper
- brake device
- brake
- disk
- anchor pin
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H15/00—Wear-compensating mechanisms, e.g. slack adjusters
- B61H15/0007—Wear-compensating mechanisms, e.g. slack adjusters mechanical and self-acting in one direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H5/00—Applications or arrangements of brakes with substantially radial braking surfaces pressed together in axial direction, e.g. disc brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
- F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
- F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
- F16D55/226—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes
- F16D55/2265—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing
- F16D55/227—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing by two or more pins
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/005—Components of axially engaging brakes not otherwise provided for
- F16D65/0068—Brake calipers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/38—Slack adjusters
- F16D65/40—Slack adjusters mechanical
- F16D65/52—Slack adjusters mechanical self-acting in one direction for adjusting excessive play
- F16D65/54—Slack adjusters mechanical self-acting in one direction for adjusting excessive play by means of direct linear adjustment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/38—Slack adjusters
- F16D65/40—Slack adjusters mechanical
- F16D65/52—Slack adjusters mechanical self-acting in one direction for adjusting excessive play
- F16D65/58—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with eccentric or helical body
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/08—Fluid pressure acting on a membrane-type actuator, e.g. for gas pressure
Definitions
- the present invention relates to a caliper brake device that applies frictional force to a disk that rotates with a wheel to brake the rotation of the wheel.
- fluid pressure brake devices that perform braking using fluid pressure such as hydraulic pressure or air pressure have been used for vehicles such as railway vehicles.
- JP08-226471A discloses a caliper brake device for a railway vehicle that includes an anchor pin that supports the braker so as to be able to advance and retract, a rod that penetrates the anchor pin, and a spring that biases the rod in the return direction of the braker. .
- the present invention has been made in view of the above problems, and an object of the present invention is to improve the pressing force of the control device in the caliper brake device.
- a caliper brake device that applies a frictional force across a disk that rotates together with a wheel.
- the caliper body is supported by a vehicle body, and moves forward and backward with respect to the caliper body.
- a control member capable of applying a frictional force by sliding contact, a pressing mechanism that presses the control member against the disk by the pressure of a working fluid, and an adjuster that supports the control member on the caliper body.
- An anchor pin which is provided so as to be able to advance and retreat with respect to the caliper body, and which supports the restrictor on the caliper body; a return spring which urges the restrictor in a direction away from the disk;
- a caliper brake device is provided that includes a back pressure chamber that is formed to guide the working fluid.
- FIG. 1 is a plan view of a caliper brake device according to an embodiment of the present invention.
- FIG. 2 is a front view of FIG. 3 is a cross-sectional view taken along line AA in FIG.
- FIG. 4 is an enlarged view of a portion B in FIG.
- FIG. 5 is a cross-sectional view of a caliper brake device according to a modification of the embodiment of the present invention.
- the caliper brake device 100 is a pneumatic brake for railway vehicles that uses compressed air as a working fluid.
- the caliper brake device 100 includes a caliper body 10 that is supported by a cart (vehicle body) (not shown) via a support frame 20 and a pair of brakes that can move forward and backward with respect to the caliper body 10 and slidably contact the disk 6 to apply a friction force.
- a ring element 7, a diaphragm actuator 50 as a pressing mechanism that presses the brake element 7 against the disk 6 by the pressure (air pressure) of compressed air, and a pair of adjusters 40 that support the brake element 7 on the caliper body 10 are provided.
- the caliper brake device 100 applies a frictional force across the disk 6 that rotates together with the wheels 5. Specifically, the caliper brake device 100 sandwiches the disk 6 from both sides thereof with a pair of restrictors 7 and brakes the rotation of the wheels 5 by the frictional force between the disk 6 and the restrictors 7.
- the disk 6 is provided on the wheel 5 and rotates together with the wheel 5.
- the disk 6 is integrally formed on both front and back surfaces of the wheel 5. In this way, the disc 6 may not be formed integrally with the wheel 5 but a separate disc 6 that rotates together with the wheel 5 may be provided.
- the caliper body 10 includes a first caliper arm 12 and a second caliper arm 14 that extend so as to straddle the disk 6, a yoke portion 13 that connects the first caliper arm 12 and the second caliper arm 14, and the caliper body 10. And a pair of bracket portions 15 for supporting the upper portion.
- the caliper body 10 is floatingly supported by the upper slide pin 30 and the lower slide pin 32 so as to be slidable with respect to the support frame 20. As a result, the caliper body 10 follows the relative movement of the wheel 5 in the axial direction with respect to the carriage, and the control 7 faces the disk 6 of the wheel 5 in parallel.
- the upper slide pin 30 and the lower slide pin 32 are provided so as to penetrate the support frame 20, and both end portions thereof are connected to the bracket portion 15 of the caliper main body 10.
- the caliper body 10 is supported by the support frame 20 so as to be slidable in the axial direction of the upper slide pin 30 and the lower slide pin 32.
- the exposed portions of the upper slide pin 30 and the lower slide pin 32 are covered with a rubber boot 34 and protected from dust and the like.
- the restrictor 7 receives a pressing force from the diaphragm actuator 50 and is pressed in parallel with the disk 6 to come into contact therewith.
- the restrictor 7 has a lining 9 that abuts against a disk 6 that rotates with the wheel 5.
- the brake member 7 brakes the rotation of the wheel 5 by the frictional force generated by the contact between the lining 9 and the disk 6.
- the upper and lower ends of the restrictor 7 are fixed to anchor pins 43 of an adjuster 40 described later. Further, the control 7 is biased in a direction away from the disk 6 by a return spring 44 of an adjuster 40 described later.
- the diaphragm actuator 50 includes a piston 52 that presses the brake 7 against the disk 6, a cylinder 51 in which the piston 52 slides, and a diaphragm 53 that defines an air chamber 55 in the cylinder 51.
- the diaphragm actuator 50 deforms the diaphragm 53 by adjusting the air pressure in the air chamber 55, and presses the control member 7 against the disk 6 by the deformation of the diaphragm 53.
- the diaphragm actuator 50 is provided only on the first caliper arm 12 side.
- the cylinder 51 includes a cylinder main body 51a on which the piston 52 slides, and a caliper cover 54 that sandwiches and fixes the diaphragm 53 between the cylinder main body 51a and closes the back surface to define an air chamber 55.
- the piston 52 is provided in the cylinder 51 so as to abut against the brake 7.
- the piston 52 slides in the cylinder 51 by the deformation of the diaphragm 53 that abuts the back surface.
- the restrictor 7 moves forward and backward with respect to the disk 6.
- the diaphragm 53 has a peripheral portion 53a, a bellows portion 53b, and a pressing portion 53c.
- the peripheral edge 53a is sandwiched and fixed between the cylinder body 51a and the caliper cover 54.
- the bellows portion 53 b can be extended from the folded state by the air pressure supplied to the air chamber 55.
- the pressing portion 53c is in contact with the piston 52, and is displaced by the extension of the folded bellows portion 53b. As the pressing portion 53 c is displaced, the piston 52 is pressed and slides in the cylinder 51.
- the diaphragm 53 is an elastic material made of resin, and for example, a bellows is formed using a composite of reinforcing materials such as carbon fibers and Kepler fibers. Further, it may be a bellows made of a rubber tube or a thin metal plate.
- the caliper cover 54 is fixed to the cylinder body 51a by a plurality of bolts 54a.
- the caliper cover 54 fixes the peripheral portion 53a of the diaphragm 53 between the cylinder body 51a. At this time, since the diaphragm 53 which is a resin elastic material plays a role of packing, the airtightness of the air chamber 55 is ensured.
- the air chamber 55 is defined inside the cylinder 51 by a diaphragm 53 and a caliper cover 54.
- the air chamber 55 advances and retracts the piston 52 with the expansion and contraction of its volume.
- the air chamber 55 is provided with a through hole 56 (see FIG. 2). Compressed air for deforming the diaphragm 53 during braking is supplied from an external air pressure source through the through hole 56.
- the caliper cover 54 is formed with an air passage 54b that guides part of the compressed air in the air chamber 55 to the back pressure chamber 46 of the adjuster 40 described later.
- the air passage 54b opens at an end face of the caliper cover 54 facing the adjuster 40, and communicates the air chamber 55 with a back pressure chamber 46 of the adjuster 40 described later.
- a large-diameter portion 54c to which the quill 48 is attached is formed in the opening portion of the surface facing the adjuster 40 in the air passage 54b.
- the inner diameter of the large-diameter portion 54c is formed so as to accommodate the quill 48.
- the quill 48 is a hollow shaft that is provided between the cylinder 51 and the restrictor receiver 41 and communicates the air chamber 55 and the back pressure chamber 46. The quill 48 will be described in detail later.
- the adjuster 40 adjusts the initial position of the control 7 with respect to the disk 6.
- the adjusters 40 are arranged above and below the diaphragm actuator 50, respectively.
- the adjusters 40 are fastened to the upper and lower ends of the caliper body 10 by anchor bolts 42, respectively.
- the adjuster 40 is provided with a brake pad receiver 41 fixed to the caliper body 10 by an anchor bolt 42, and provided so as to be able to advance and retreat with respect to the brake pad receiver 41.
- An anchor pin 43 that rotates, a return spring 44 that urges the brake 7 in a direction away from the disk 6, a gap adjustment mechanism 45 that adjusts the gap between the brake 7 and the disk 6 when braking is released, And a back pressure chamber 46 defined on the back surface.
- the anchor pin 43 is formed in a substantially bottomed cylindrical shape.
- the anchor pin 43 has a flange portion 43 b that engages with the control wheel 7.
- the anchor pin 43 is provided with a bottom portion protruding from the restrictor receiver 41, and the flange 43 b is fitted to both ends of the restrictor 7 to support the restrictor 7.
- the anchor pin 43 is displaced in the axial direction following the movement in which the diaphragm 53 is deformed and presses the brake member 7 against the disk 6 during braking.
- the anchor pin 43 holds the control member 7 against the disc 6 trying to move the control member 7 in the circumferential direction by frictional force during braking when the control member 7 is in sliding contact with the disc 6.
- a return spring 44 and a gap adjusting mechanism 45 are accommodated on the inner periphery of the anchor pin 43.
- the anchor pin 43 has a flat washer 43a on the inner periphery near the opening end.
- a sliding portion exposed to the outside at the time of sliding in the anchor pin 43 is covered with a rubber boot 47 and protected from dust and the like.
- the return spring 44 is a coil spring that is compressed and interposed on the inner periphery of the anchor pin 43.
- the return spring 44 biases the flat washer 43a of the anchor pin 43 in the axial direction against the collar 45c of the gap adjusting mechanism 45.
- the flange 43b of the anchor pin 43 pushes back the restrictor 7 by the biasing force, and the restrictor 7 is separated from the disk 6 by a predetermined distance. . Thereby, the distance between the brake wheel 7 and the disk 6 during non-braking can be adjusted, and the heat dissipation of the disk 6 can be improved.
- the control wheel support 41 supports the anchor pin 43 so as to be able to advance and retreat.
- the restrictor receiver 41 closes the back surface of the anchor pin 43 to define a back pressure chamber 46.
- the restrictor receiver 41 has an air passage 41 a that allows the air chamber 55 to communicate with the back pressure chamber 46 via the quill 48.
- the back pressure chamber 46 is defined between the interior of the control ring receiver 41 and the back surface of the anchor pin 43. A part of the compressed air in the diaphragm actuator 50 is guided to the back pressure chamber 46. When compressed air is guided from the air chamber 55 to the back pressure chamber 46 during braking, the internal pressure of the back pressure chamber 46 increases. As a result, the anchor pin 43 is pressed in a direction in which the brake 7 is close to the disk 6.
- the air passage 41a opens at the end face of the control member 41 that faces the caliper body 10, and communicates the back pressure chamber 46 and the air chamber 55 of the caliper body 10.
- a large-diameter portion 41c to which the quill 48 is attached is formed in the opening portion of the surface facing the caliper body 10 in the air passage 41a.
- the large-diameter portion 41c of the air passage 41a is formed to be open so as to be coaxial with the large-diameter portion 54c of the air passage 54b.
- the large diameter portion 41c is formed to have an inner diameter substantially the same as the large diameter portion 54c.
- the large diameter portion 41 c and the large diameter portion 54 c are formed such that the total axial length is larger than the axial length of the quill 48.
- the quill 48 is a hollow shaft having a through hole 48a through which compressed air can pass on the inner periphery.
- the quill 48 communicates the air passage 41 a of the adjuster 40 and the air passage 54 b of the caliper body 10.
- the outer periphery of the quill 48 is sealed by an O-ring 48 b provided between the large-diameter portion 41 c of the brake support 41 and an O-ring 48 c provided between the large-diameter portion 54 c of the caliper cover 54. Since the O-ring 48b and the O-ring 48c are elastic, even if the large-diameter portion 41c and the large-diameter portion 54c are not completely coaxial, the elasticity of the O-ring 48b and the O-ring 48c causes the mutual center axis Misalignment can be absorbed.
- a sealing member that can seal the outer periphery of the quill 48 may be used instead of the O-ring 48b and the O-ring 48c.
- the quill 48 When assembling the adjuster 40 and the caliper main body 10, the quill 48 is fitted into the large diameter portion 54 c, the adjuster 40 is attached so that the large diameter portion 54 c fits into the quill 48, and the anchor bolt 42 is fastened. Thereby, when the adjuster 40 and the caliper main body 10 are assembled, the air chamber 55 of the caliper main body 10 and the back pressure chamber 46 of the adjuster 40 can be communicated simultaneously. Therefore, by providing the quill 48, the air passage 54b and the air passage 41a can be easily communicated.
- the clearance adjustment mechanism 45 adjusts the return amount of the brake restrictor 7 by the urging force of the return spring 44 when the brake is released to a constant level. That is, the gap adjusting mechanism 45 always keeps the distance between the brake 7 and the disk 6 at the time of non-braking.
- the clearance adjusting mechanism 45 includes a fixed pin 45a fixed to the brake pad receiver 41, a grip 45b fixed to the fixed pin 45a so as to be movable in the axial direction, and the fixed pin 45a as the grip 45b moves. And a collar 45c movable in the axial direction.
- the grip 45b is movable in the axial direction when the anchor pin 43 is advanced by the pressing force of the compressed air in the back pressure chamber 46 and the flat washer 43a is pressed against the step 45d of the collar 45c.
- the grip 45b grips the outer periphery of the fixed pin 45a with a force that cannot move in the axial direction by the urging force of the return spring 44. Therefore, the grip 45b moved in the direction in which the anchor pin 43 advances during braking is not returned by the urging force of the return spring 44 when braking is released, and maintains its position.
- the stroke of the anchor pin 43 during braking is small. Therefore, even if the anchor pin 43 advances, the flat washer 43a does not contact the step 45d of the collar 45c. Therefore, when the brake is released, the anchor pin 43 returns to the original position before the braking.
- the wheels 5 are rotating at high speed.
- the caliper brake device 100 is switched to the braking state by the driver's operation or the like, the compressed air supplied from the air pressure source is sent into the air chamber 55 through the through hole 56 to deform the diaphragm 53. . Then, the bellows portion 53b of the diaphragm 53 extends, and the pressing portion 53c slides the piston 52 in the direction of the disk 6.
- the pressing portion 53 c of the diaphragm 53 is displaced in the direction of the wheel 5 and presses the control member 7 against the disc 6 provided on the wheel 5 through the piston 52.
- the braking device 7 pressed by the diaphragm 53 and the disc 6 come into contact with each other and a frictional force is generated, the rotation of the wheel 5 is braked. As a result, the railway vehicle will eventually stop due to a decrease in speed.
- the anchor pin 43 is moved forward and backward in accordance with the advancement and retraction of the brake 7. Therefore, when the piston 52 presses the brake member 7 during braking, the sliding resistance of the anchor pin 43 and the urging force of the return spring 44 become resistance.
- a part of the compressed air in the air chamber 55 is defined on the back surface of the anchor pin 43 through the air passage 54b, the through hole 48a, and the air passage 41a.
- the anchor pin 43 is pressed in a direction in which the control member 7 approaches the disk 6 by the compressed air guided to the back pressure chamber 46. Therefore, since the resistance at the time of pressing the restrictor 7 can be canceled, the pressing force of the restrictor in the caliper brake device 100 can be improved.
- the anchor pin 43 is pressed in the direction in which the brake 7 is brought close to the disk 6 by the compressed air guided to the back pressure chamber 46. Therefore, the pressing force in the vicinity of the anchor pin 43 can be made equal to the pressing force at the portion pressed by the piston 52. Therefore, it is possible to increase the contact area of the lining 9 during braking and to make the state of the lining 9 negotiating with the disk 6 constant.
- the restrictor 7 is separated from the state in contact with the disk 6 by the restoring force of the return spring 44 provided in the adjuster 40. Also, the compressed air in the air chamber 55 is discharged from the through hole 56, the bellows portion 53b of the diaphragm 53 returns to the folded shape before braking, and the pressing portion 53c returns to the position before braking. As a result, the piston 52 also returns to the position before braking, whereby the disc 6 and the control 7 are again opposed to each other by a gap adjusting mechanism 45 at a constant interval. Therefore, the wheel 5 can rotate without being affected by the caliper brake device 100.
- a part of the compressed air for pressing the restrictor 7 against the disk 6 by the diaphragm actuator 50 is guided to the back pressure chamber 46 defined on the back surface of the anchor pin 43.
- the anchor pin 43 is pressed in the direction in which the brake 7 is close to the disk 6 by the compressed air guided to the back pressure chamber 46. Accordingly, since the sliding resistance of the anchor pin 43 and the urging force of the return spring 44 when pressing the restrictor 7 can be canceled, the pressing force of the restrictor in the caliper brake device 100 can be improved.
- the caliper brake 200 includes an air pressure supply mechanism 60 that supplies compressed air as a working fluid to the air chamber 55 of the diaphragm actuator 50 and the back pressure chamber 46 of the adjuster 40.
- the air pressure supply mechanism 60 includes a plug 61 connected to an external air pressure source, a supply channel 62 that guides the supplied compressed air to the air chamber 55, and a plug 65 that connects the supply channel 62 and the air chamber 55. And a pair of supply passages 63 for guiding the supplied compressed air to the respective back pressure chambers 46, and a pair of plugs 64 for connecting the supply passages 63 and the back pressure chambers 46 respectively.
- the anchor pin 43 is pressed in the direction in which the control 7 is close to the disk 6. Accordingly, since the sliding resistance of the anchor pin 43 and the urging force of the return spring 44 when pressing the restrictor 7 can be canceled, the pressing force of the restrictor in the caliper brake device 100 can be improved.
- the compressed air supplied through the plug 61 is not led to the air chamber 55 and the back pressure chamber 46, but is an air pressure source of the compressed air led to the air chamber 55 and the compressed air led to the back pressure chamber 46. May be provided separately.
- the force by which the piston 52 presses the brake member 7 and the force by which the anchor pin 43 presses the brake member 7 can be individually adjusted.
- compressed air is used as the working fluid
- a hydraulic brake using oil as the working fluid may be used.
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Abstract
Description
Claims (5)
- 車輪とともに回転するディスクを挟んで摩擦力を付与するキャリパブレーキ装置であって、
車体に支持されるキャリパ本体と、
前記キャリパ本体に対して進退し、前記ディスクに摺接して摩擦力を付与可能な制輪子と、
前記制輪子を作動流体の圧力によって前記ディスクに押圧する押圧機構と、
前記制輪子を前記キャリパ本体に支持するアジャスタと、を備え、
前記アジャスタは、
前記キャリパ本体に対して進退可能に設けられ、前記制輪子を前記キャリパ本体に支持するアンカピンと、
前記制輪子を前記ディスクから離間する方向に付勢する戻しばねと、
前記アンカピンの背面に画成されて作動流体が導かれる背圧室と、を備えるキャリパブレーキ装置。 - 請求項1に記載のキャリパブレーキ装置であって、
前記背圧室へは、前記押圧機構における作動流体の一部が導かれるキャリパブレーキ装置。 - 請求項1に記載のキャリパブレーキ装置であって、
前記押圧機構は、
前記制輪子を前記ディスクに押圧するピストンと、
前記ピストンが内部を摺動するシリンダと、
前記シリンダ内に空気室を画成し、当該空気室における空気圧の変化によって変形して前記制輪子に前記ディスクへの押圧力を印加するダイヤフラムと、を備えるキャリパブレーキ装置。 - 請求項3に記載のキャリパブレーキ装置であって、
前記アジャスタは、前記アンカピンを進退可能に支持する制輪子受を備え、
前記シリンダと前記制輪子受との間に設けられ、前記空気室と前記背圧室とを連通させるクイルを更に備えるキャリパブレーキ装置。 - 請求項4に記載のキャリパブレーキ装置であって、
前記シリンダは、
前記ピストンが摺動するシリンダ本体と、
前記シリンダ本体との間に前記ダイヤフラムを挟み込んで固定し、その背面を閉塞して前記空気室を画成するとともに、前記背圧室に空気圧を導く空気通路が形成されるキャリパカバーと、を備え、
前記制輪子受は、前記クイルを介して前記背圧室を前記空気室と連通する空気通路を有するキャリパブレーキ装置。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201280043394.8A CN103814234B (zh) | 2011-09-06 | 2012-07-30 | 钳式制动装置 |
RU2014104163/11A RU2568622C2 (ru) | 2011-09-06 | 2012-07-30 | Клещевое тормозное устройство |
KR1020147003603A KR101520237B1 (ko) | 2011-09-06 | 2012-07-30 | 캘리퍼 브레이크 장치 |
CA2846019A CA2846019C (en) | 2011-09-06 | 2012-07-30 | Caliper brake apparatus |
EP12829624.1A EP2754914B1 (en) | 2011-09-06 | 2012-07-30 | Caliper brake device |
ES12829624.1T ES2622340T3 (es) | 2011-09-06 | 2012-07-30 | Dispositivo de freno de zapata |
US14/342,755 US9308924B2 (en) | 2011-09-06 | 2012-07-30 | Caliper brake apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011-193791 | 2011-09-06 | ||
JP2011193791A JP5677915B2 (ja) | 2011-09-06 | 2011-09-06 | キャリパブレーキ装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013035458A1 true WO2013035458A1 (ja) | 2013-03-14 |
Family
ID=47831910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/069296 WO2013035458A1 (ja) | 2011-09-06 | 2012-07-30 | キャリパブレーキ装置 |
Country Status (10)
Country | Link |
---|---|
US (1) | US9308924B2 (ja) |
EP (1) | EP2754914B1 (ja) |
JP (1) | JP5677915B2 (ja) |
KR (1) | KR101520237B1 (ja) |
CN (1) | CN103814234B (ja) |
CA (1) | CA2846019C (ja) |
ES (1) | ES2622340T3 (ja) |
RU (1) | RU2568622C2 (ja) |
TW (1) | TWI472692B (ja) |
WO (1) | WO2013035458A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104196933A (zh) * | 2014-07-24 | 2014-12-10 | 浙江诸暨万宝机械有限公司 | 一种制动钳总成 |
US9694833B2 (en) * | 2014-12-04 | 2017-07-04 | Akebono Brake Industry Co., Ltd. | Disk brake and disk brake for railway vehicle |
JP6676437B2 (ja) * | 2016-03-30 | 2020-04-08 | 曙ブレーキ工業株式会社 | ディスクブレーキ及び鉄道車両用ディスクブレーキ |
FR3054627B1 (fr) * | 2016-07-28 | 2019-04-26 | Renault S.A.S. | Plaquette de frein et systeme de freinage d'un vehicule automobile |
JP7444756B2 (ja) * | 2020-10-28 | 2024-03-06 | ナブテスコ株式会社 | ブレーキキャリパ装置 |
US11773928B2 (en) * | 2020-12-14 | 2023-10-03 | Arvinmeritor Technology, Llc | Brake assembly having a guide pin assembly |
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JP2009115215A (ja) * | 2007-11-06 | 2009-05-28 | Kayaba Ind Co Ltd | 車両用キャリパブレーキ装置 |
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JPH0617701B2 (ja) * | 1985-08-07 | 1994-03-09 | 住友電気工業株式会社 | デイスクブレ−キ用アクチユエ−タ |
US5058712A (en) * | 1989-07-07 | 1991-10-22 | American Standard Inc. | Pre-loading pivotal pin connection for a disc brake assembly |
JPH11230212A (ja) * | 1998-02-10 | 1999-08-27 | Akebono Brake Ind Co Ltd | エアディスクブレーキ |
KR100426651B1 (ko) | 2001-01-08 | 2004-04-13 | 주식회사 포스콘 | 마찰토크 보상을 위한 장력제어장치 및 그 방법 |
RU2264940C1 (ru) * | 2004-03-31 | 2005-11-27 | Открытое акционерное общество "Тверской вагоностроительный завод" (ОАО "ТВЗ") | Узел крепления привода дискового тормоза |
JP4259440B2 (ja) | 2004-09-29 | 2009-04-30 | 住友金属工業株式会社 | 鉄道車両用ディスクブレーキ |
JP4492359B2 (ja) * | 2005-01-12 | 2010-06-30 | トヨタ自動車株式会社 | ディスクブレーキ装置 |
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JP2008286234A (ja) * | 2007-05-15 | 2008-11-27 | Kayaba Ind Co Ltd | 鉄道車両用キャリパブレーキ装置 |
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JP4939444B2 (ja) * | 2008-01-09 | 2012-05-23 | 曙ブレーキ工業株式会社 | ディスクブレーキの防振ゴムによるブレーキトルク受け機構 |
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JP5330155B2 (ja) * | 2009-08-25 | 2013-10-30 | カヤバ工業株式会社 | キャリパブレーキ装置 |
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2011
- 2011-09-06 JP JP2011193791A patent/JP5677915B2/ja not_active Expired - Fee Related
-
2012
- 2012-07-30 EP EP12829624.1A patent/EP2754914B1/en not_active Not-in-force
- 2012-07-30 WO PCT/JP2012/069296 patent/WO2013035458A1/ja active Application Filing
- 2012-07-30 CN CN201280043394.8A patent/CN103814234B/zh not_active Expired - Fee Related
- 2012-07-30 KR KR1020147003603A patent/KR101520237B1/ko not_active IP Right Cessation
- 2012-07-30 ES ES12829624.1T patent/ES2622340T3/es active Active
- 2012-07-30 CA CA2846019A patent/CA2846019C/en not_active Expired - Fee Related
- 2012-07-30 US US14/342,755 patent/US9308924B2/en not_active Expired - Fee Related
- 2012-07-30 RU RU2014104163/11A patent/RU2568622C2/ru not_active IP Right Cessation
- 2012-08-13 TW TW101129169A patent/TWI472692B/zh not_active IP Right Cessation
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JPS6235123A (ja) * | 1985-08-07 | 1987-02-16 | Sumitomo Electric Ind Ltd | デイスクブレ−キ |
JPH08226471A (ja) | 1995-02-23 | 1996-09-03 | Akebono Brake Ind Co Ltd | 鉄道車両用キャリパブレーキ装置 |
JP2009115215A (ja) * | 2007-11-06 | 2009-05-28 | Kayaba Ind Co Ltd | 車両用キャリパブレーキ装置 |
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See also references of EP2754914A4 |
Also Published As
Publication number | Publication date |
---|---|
EP2754914A1 (en) | 2014-07-16 |
TWI472692B (zh) | 2015-02-11 |
JP2013053717A (ja) | 2013-03-21 |
US20140216864A1 (en) | 2014-08-07 |
JP5677915B2 (ja) | 2015-02-25 |
EP2754914B1 (en) | 2017-03-22 |
CN103814234A (zh) | 2014-05-21 |
ES2622340T3 (es) | 2017-07-06 |
KR20140040267A (ko) | 2014-04-02 |
US9308924B2 (en) | 2016-04-12 |
CA2846019C (en) | 2016-05-31 |
TW201311487A (zh) | 2013-03-16 |
RU2014104163A (ru) | 2015-10-20 |
KR101520237B1 (ko) | 2015-05-13 |
CA2846019A1 (en) | 2013-03-14 |
EP2754914A4 (en) | 2016-07-13 |
RU2568622C2 (ru) | 2015-11-20 |
CN103814234B (zh) | 2016-11-16 |
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