JP6709092B2 - Brake device - Google Patents

Description

The present invention relates to a braking device.

Patent Document 1 discloses a U-shaped support frame that is fixed to a vehicle body of a railway vehicle with variable wheel spacing and supports a brake body. The support frame has a base portion attached to the vehicle body, and first and second support portions provided on the base portion with a space therebetween. A hole is formed in each of the first and second support portions. The brake body is axially slidably supported by the pins inserted through these holes.

JP-A-10-230850

In the brake device disclosed in Patent Document 1, foreign matter such as dust, snow, and ash may adhere to the inner surface of the support frame. The foreign matter attached to the inner surface of the support frame is pressed against the first and second support portions by the brake body when the brake body slides. As a result, foreign matter may collect on the first and second support portions, and the movement range of the brake body may be narrowed.

An object of the present invention is to prevent the movement range of the brake body from being narrowed.

1st invention, 1st and 2nd support part, guide part, brake main body slidably supported with respect to a guide part, 1st support part and 2nd support part among the outer surfaces of a brake main body. A cover portion provided between the first support portion and the second support portion, the cover portion having an outer surface that is located between the first support portion and the second support portion, and has an outer surface that faces the outer surface opposite to the wheel with a predetermined distance. It is characterized by

In the first aspect of the invention, since the cover portion has the outer surface that faces the outer surface of the brake body on the side opposite to the wheels with a predetermined distance, a predetermined gap is formed between the brake body and the cover portion. Since the cover portion covers the space between the first support portion and the second support portion, foreign matter larger than this gap does not flow into the predetermined gap. Even if a foreign substance smaller than the predetermined gap flows into this gap, the adhesive force is weak, and the foreign substance is removed by the vibration or sliding action applied to the brake body. Therefore, foreign matter is unlikely to adhere to the inner side surfaces of the first and second support portions, and even if the brake body slides, foreign matter is less likely to collect in the first and second support portions.

A second invention is characterized in that a gap is formed between the cover portion and the vehicle body or the trolley, and the cover portion is a plate material having an opening communicating with the gap.

In the second aspect of the invention, since the opening that communicates with the gap between the cover and the vehicle body or the bogie is formed in the cover, foreign matter adhering to the cover slides on the brake body and is scraped off by the brake body. When it is struck, it is sent through the opening between the cover and the vehicle body or carriage. Therefore, it is possible to more reliably prevent foreign matters from accumulating on the first and second support portions when the brake body slides.

In a third aspect of the invention, the guide portion has a first guide member and a second guide member located below the first guide member, and the opening is below the upper end of the first guide member and 2 is located above the guide member.

In the third aspect, the opening is located below the upper end of the first guide member and above the second guide member. Therefore, the foreign matter attached to the outer surface of the cover portion is easily sent through the opening between the cover portion and the vehicle body or the trolley when scraped by the portion of the brake body that slides with respect to the first guide member. , Difficult to be sent to the second guide member. Therefore, it is possible to more reliably prevent foreign matters from accumulating on the first and second support portions when the brake body slides.

A fourth invention is characterized in that the cover portion is a plurality of plate members divided in the vertical direction, and the opening is formed by arranging the plurality of plate members at intervals.

In the fourth aspect of the invention, the opening is formed by arranging a plurality of plate members at a distance from each other, so it is not necessary to form the opening in the plate member. Therefore, the cover portion can be manufactured more easily.

A fifth aspect of the invention is characterized in that the cover portion includes a block member that is formed of a resin material and fills a space between the first support portion and the second support portion.

In the fifth aspect, since the cover portion includes the block member formed of the resin material, the temperature of the cover portion is unlikely to drop, and the outer surface of the cover portion is unlikely to be covered with snow. Therefore, it is possible to prevent the movement range of the brake main body from being narrowed due to snow. Further, the block member has a sufficient thickness in the direction intersecting with the sliding direction of the brake main body in order to fill the space between the first support portion and the second support portion. Therefore, the strength of the cover portion can be increased.

A sixth aspect of the invention is characterized in that the cover portion further includes a metal plate member that covers the block member and forms an outer surface of the cover portion.

In the sixth aspect, since the metal plate member that covers the block member forms the outer surface of the cover portion, the outer surface of the cover portion is unlikely to be deformed by an external force. Therefore, the strength of the cover portion can be increased.

A seventh aspect of the invention is characterized in that the cover portion is divided in the sliding direction of the brake body.

In the seventh invention, since the cover portion is divided into a plurality of pieces in the sliding direction of the brake main body, the dimension of the cover portion in the sliding direction changes by increasing or decreasing the number of divided bodies. Therefore, the brake device can be more flexibly adapted to a plurality of vehicles having different distances between the first support portion and the second support portion.

In an eighth aspect of the present invention, the outer surface of the cover portion has a proximal portion located above the lower end of the outer surface of the cover portion and closer to the brake body than the lower end, and goes from the proximal portion to the lower end. The feature is that it is far from the brake body.

In the eighth aspect, since the outer surface of the cover part is separated from the brake main body toward the lower end from the proximal part, foreign matter scraped off from the outer surface when the brake main body is slid from the proximal part to the brake main body and the cover part. It is easy to fall down through the space. Therefore, it is possible to more reliably prevent foreign matters from accumulating on the first and second support portions.

A ninth aspect of the invention is characterized in that the outer surface of the cover part is further away from the brake main body as it goes from the end in the sliding direction of the brake main body toward the center.

In the ninth aspect, since the outer surface of the cover portion moves away from the end of the brake body toward the center, the foreign matter scraped off from the outer surface when the brake body slides is easily sent to the center along the outer surface of the cover portion. .. Therefore, it is possible to more reliably prevent foreign matters from accumulating on the first and second support portions.

A tenth aspect of the invention is characterized in that the cover portion has an upper surface that closes between the upper end of the outer surface and the vehicle body or the bogie.

In the tenth aspect, since the upper surface of the cover portion closes the upper end of the outer surface and the vehicle body or the truck, foreign matter is unlikely to flow between the cover portion and the vehicle body or the truck. Therefore, it is possible to prevent foreign matter from accumulating between the cover portion and the vehicle body or the bogie.

According to the present invention, it is possible to prevent the movement range of the brake body from being narrowed.

It is a top view of the brake equipment concerning a 1st embodiment of the present invention. It is a front view in FIG. It is sectional drawing which follows the III-III line of FIG. It is sectional drawing of the brake device which concerns on the modification of 1st Embodiment of this invention. It is sectional drawing of the brake device which concerns on 2nd Embodiment of this invention. It is sectional drawing which follows the VI-VI line of FIG. It is sectional drawing of the brake device which concerns on 3rd Embodiment of this invention. FIG. 8 is a perspective view of the first and second support parts and the cover part shown in FIG. 7.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<First Embodiment>
First, with reference to FIGS. 1 to 3, a brake device 100 according to a first embodiment of the present invention will be described. Here, the brake device 100 is a pneumatic brake for railway vehicles in which compressed air is used as a working fluid. Instead of compressed air, other working fluid such as working oil may be used.

As shown in FIGS. 1 and 2, the brake device 100 includes a brake main body 10 that brakes rotation of the wheel 1, first and second slide pins 31 and 32 that support the brake main body 10, and first and second brake pins. And a brake support member 50 that supports the slide pins 31 and 32. The brake support member 50 is attached to a carriage (not shown) of the vehicle. When the brake device 100 is applied to a vehicle other than a railway vehicle, the brake support member 50 is attached to the vehicle body (not shown) of the vehicle.

The brake device 100 is mounted on a vehicle by mounting the brake support member 50 on a truck or a vehicle body. Here, it is assumed that the brake device 100 is mounted on the vehicle.

The brake main body 10 has a pair of brake linings 11a and 11b for holding the wheel 1 and guide plates 12a and 12b that respectively support the brake linings 11a and 11b. When sandwiching the wheel 1, the pair of brake linings 11a and 11b contact brake discs 2a and 2b provided on both front and back surfaces of the wheel 1, respectively.

The brake discs 2a and 2b are formed integrally with the wheel 1 and rotate together with the wheel 1. Instead of the brake discs 2a and 2b formed integrally with the wheel 1, brake discs 2a and 2b formed separately from the wheel 1 and rotatably provided with the wheel 1 may be used.

Further, the brake body 10 includes caliper arm portions 13a and 13b that support the guide plates 12a and 12b, a yoke portion 14 that connects the caliper arm portions 13a and 13b, and first and second pin receiving portions that are provided on the yoke portion 14. And parts 15 and 16. The caliper arm portions 13a and 13b, the yoke portion 14, and the first and second pin receiving portions 15 and 16 are integrally formed.

The caliper arm portions 13a and 13b extend along the brake discs 2a and 2b, respectively. The brake lining 11a is arranged between the caliper arm portion 13a and the brake disc 2a, and the brake lining 11b is arranged between the caliper arm portion 13b and the brake disc 2b.

The first pin receiving portion 15 is arranged on the upper side of the yoke portion 14 and projects from the yoke portion 14 on the side opposite to the wheel 1. The second pin receiving portion 16 is arranged below the yoke portion 14 and projects from the yoke portion 14 on the side opposite to the wheel 1.

The shafts of the first and second pin receiving portions 15 and 16 are formed in a columnar shape along the rotation axis of the wheel 1. A through hole 15a is formed in the first pin receiving portion 15, and a through hole 16a is formed in the second pin receiving portion 16 (see FIG. 3).

The first slide pin (first guide member) 31 is inserted into the through hole 15 a of the first pin receiving portion 15. The second slide pin (second guide member) 32 is located below the first slide pin 31, and is inserted into the through hole 16 a of the second pin receiving portion 16. By inserting the first slide pin 31 into the through hole 15a and inserting the second slide pin 32 into the through hole 16a, the brake body 10 is axially (extended) with respect to the first and second slide pins 31 and 32. ) Is supported slidably.

The axial directions of the first and second slide pins 31 and 32 coincide with the rotational axis direction of the wheel 1. Therefore, the brake body 10 moves in the rotation axis direction of the wheel 1 by sliding on the first and second slide pins 31 and 32. That is, the first and second slide pins 31 and 32 function as guide portions that guide the brake body 10 in the rotation axis direction of the wheel 1.

The brake support member 50 has a base portion 51 attached to a truck and first and second bracket portions 60 and 70 as first and second support portions that support the first and second slide pins 31 and 32. The first and second bracket portions 60, 70 are provided on the base portion 51 at a distance from each other and are formed integrally with the base portion 51. The first and second bracket portions 60, 70 may be provided directly on the truck.

The first bracket portion 60 has a through hole 61 through which one end of the first slide pin 31 is inserted and a through hole (not shown) through which one end of the second slide pin 32 is inserted. The second bracket portion 70 has a through hole 71 through which the other end portion of the first slide pin 31 is inserted and a through hole (not shown) through which the other end portion of the second slide pin 32 is inserted.

The base portion 51 has bolt holes 62a and 72a formed at the upper end portion of the base portion 51 and bolt holes 62b and 72b formed at the lower end portion of the base portion 51. The bolt holes 62a and 72a extend vertically, and the bolt holes 62b and 72b extend laterally.

The brake support member 50 is fastened to the upper surface of the truck by screwing the bolts inserted through the bolt holes 62a and 72a into the truck. The brake support member 50 is fastened to the side surface of the truck by screwing the bolts inserted into the bolt holes 62b and 72b into the truck.

The first and second pin receiving portions 15 and 16 are shorter than the first and second slide pins 31 and 32, and are arranged between the first bracket portion 60 and the second bracket portion 70. The sliding of the first and second pin receiving portions 15 and 16 is limited by the first bracket portion 60 and the second bracket portion 70.

A rubber boot 33 is provided between the first bracket portion 60 and the first pin receiving portion 15 and between the second bracket portion 70 and the first pin receiving portion 15. The rubber boot 33 covers the portion of the first slide pin 31 extending from the first pin receiving portion 15 and protects the first slide pin 31 from dust and the like.

Rubber boots (not shown) are provided between the first bracket portion 60 and the second pin receiving portion 16 and between the second bracket portion 70 and the second pin receiving portion 16. The rubber boot covers a portion of the second slide pin 32 extending from the second pin receiving portion 16 and protects the second slide pin 32 from dust and the like.

The brake main body 10 includes a pneumatic cylinder 17 arranged at the tip of the caliper arm portion 13a. One end of the pneumatic cylinder 17 is fixed to the caliper arm portion 13a. The guide plate 12a is fixed to the other end of the pneumatic cylinder 17.

When compressed air is supplied to the pneumatic cylinder 17 through the through hole 18, the pneumatic cylinder 17 extends and brings the guide plate 12a closer to the brake disc 2a. As a result, the brake lining 11a contacts the brake disc 2a.

When compressed air is further supplied to the pneumatic cylinder 17 after the brake lining 11a contacts the brake disc 2a, the pneumatic cylinder 17 presses the brake lining 11a against the brake disc 2a. Since the brake main body 10 is slidably supported, it moves closer to the first bracket portion 60 as the brake disc 2a is pressed by the brake lining 11a. As a result, the brake lining 11b contacts the brake disc 2b.

When compressed air is further supplied to the pneumatic cylinder 17 after the brake linings 11a and 11b contact the brake discs 2a and 2b, the brake main body 10 holds the wheel 1 via the brake linings 11a and 11b. Since the brake linings 11a and 11b are supported against the rotation of the brake discs 2a and 2b, a frictional force is generated between the brake discs 2a and 2b and the brake linings 11a and 11b. As a result, the rotation of the wheel 1 is braked.

When the supply of compressed air to the pneumatic cylinder 17 is cut off, the pneumatic cylinder 17 contracts due to the restoring force of a spring (not shown), and moves the guide plate 12a away from the brake disc 2a. As a result, the brake linings 11a and 11b are separated from the brake discs 2a and 2b, and the braking of the rotation of the wheel 1 is released.

In this way, the pneumatic cylinder 17 operates so as to brake the rotation of the wheel 1 when the compressed air is supplied, and operates so as to release the rotation braking of the wheel 1 when the supply of the compressed air is cut off. .. Hereinafter, the operation of the pneumatic cylinder 17 that brakes the rotation of the wheel 1 is also referred to as a “braking operation”, and the operation of the pneumatic cylinder 17 that releases the braking of the rotation of the wheel 1 is also referred to as a “braking release operation”.

The brake main body 10 also includes an adjuster 20a that keeps the position of the brake lining 11a relative to the brake disc 2a during the brake release operation constant regardless of the amount of wear of the brake lining 11a. The adjuster 20a is fastened to the tip of the caliper arm portion 13a with an anchor bolt 21.

The adjuster 20a has an anchor pin 22 that can move forward and backward with respect to the caliper arm portion 13a. The guide plate 12 a is attached to the tip of the anchor pin 22. Therefore, the anchor pin 22 advances toward the brake disc 2a together with the guide plate 12a during the braking operation. At this time, the anchor pin 22 also functions as a holding member that holds the brake lining 11a against the tendency of the brake disc 2a to rotate the brake lining 11a.

The anchor pin 22 retracts from the brake disc 2a together with the guide plate 12a during the braking release operation. At this time, the anchor pin 22 returns to a position closer to the brake disc 2a than the original position by the amount of wear of the brake lining 11a (thickness reduced by wear) during braking operation. Therefore, the spacing between the brake disc 2a and the brake lining 11a during the braking release operation becomes the same before and after the braking operation.

In this way, the adjuster 20a limits the amount of return of the anchor pin 22 during the brake releasing operation, and keeps the position of the brake lining 11a relative to the brake disc 2a constant during the brake releasing operation.

In addition, the brake device 100 further includes a cover plate 80 as a cover portion provided so as to cover between the first bracket portion 60 and the second bracket portion 70. The structure of the cover plate 80 will be described in detail with reference to FIGS. 1 and 3.

The cover plate 80 includes a cover body 81 extending in the up-down direction along the outer shape of the brake body 10, a first mounting portion 82 provided on the upper edge of the cover body 81, and a first attachment portion 82 provided on the lower edge of the cover body 81. 2 attachment parts 83 and. The cover body 81 and the first and second mounting portions 82 and 83 are integrally formed by a metal plate material.

The first mounting portion 82 is fastened to the upper ends of the first and second bracket portions 60, 70 with bolts 84. The second mounting portion 83 is fastened to the lower end portions of the first and second bracket portions 60, 70 with bolts 85. Thus, the cover plate 80 is fastened to the first and second bracket portions 60, 70 by the bolts 84, 85.

The cover body 81 has an outer surface 81d that is located between the first bracket portion 60 and the second bracket portion 70 of the outer surface of the brake body 10 and faces the outer surface opposite to the wheel 1 with a predetermined distance. .. Specifically, the cover body 81 has a first curved portion 81a formed corresponding to the outer shape of the first pin receiving portion 15 on the side opposite to the wheel 1, and a portion of the yoke portion 14 on the side opposite to the wheel 1. It has a flat surface portion 81b formed corresponding to the outer shape and a second curved portion 81c formed corresponding to the outer shape of the second pin receiving portion 16 on the side opposite to the wheel 1. As described above, the cover body 81 has the outer surface 81d having a shape corresponding to the outer shape of a part of the brake body 10.

Since the outer surface 81d of the cover body 81 faces the outer surface of the brake body 10 on the side opposite to the wheel 1 with a predetermined distance, a predetermined gap is formed between the brake body 10 and the cover body 81. The cover body 81 extends so that the predetermined gap does not change even when the brake body 10 slides. Specifically, the outer surface 81d of the cover body 81 extends substantially parallel to the extending direction of the first and second slide pins 31 and 32. Therefore, the sliding of the brake body 10 is not hindered by the cover body 81.

Since the cover main body 81 covers between the first bracket portion 60 and the second bracket portion 70, foreign matter larger than this gap does not flow into the predetermined gap between the brake main body 10 and the cover main body 81. Even if foreign matter smaller than the predetermined gap flows into this gap, the foreign matter has a weak adhesive force and is removed by the vibration or sliding operation applied to the brake body 10. Therefore, foreign matter is unlikely to adhere to the inner side surface 60a of the first bracket portion 60 and the inner side surface 70a of the second bracket portion 70, and even if the brake body 10 slides, the foreign matter does not reach the first and second bracket portions 60, 70. It is hard to collect. Therefore, it is possible to prevent the movement range of the brake body 10 from being narrowed due to the foreign matter.

The first attachment portion 82 extends between the first bracket portion 60 and the second bracket portion 70 and closes the upper end of the cover body 81 and the carriage. That is, the first mounting portion 82 has the upper surface 82a that closes the upper end of the outer surface 81d of the cover body 81 and the carriage.

Since the gap between the upper end of the cover body 81 and the dolly is closed by the first mounting portion 82, it is difficult for foreign matter to flow between the cover plate 80 and the dolly. Therefore, it is possible to prevent foreign matter from accumulating between the cover plate 80 and the carriage.

The brake device 100 shown in FIG. 3 includes a cover plate 80 integrally formed of one plate material as a cover portion. Instead of the cover plate 80, the brake device 100 may include a plurality of cover plates 80a, 80b, 80c as cover portions, as in the modification shown in FIG.

FIG. 4 is a cross-sectional view showing the brake device 100 including the first to third cover plates 80a, 80b, 80c, corresponding to FIG. The first cover plate 80a has a first curved portion 81a and a first mounting portion 82. The second cover plate 80b has a flat surface portion 81b. The third cover plate 80c has a second curved portion 81c and a second mounting portion 83.

The first cover plate 80a is fastened to the upper ends of the first and second bracket portions 60, 70 with bolts 84. The third cover plate 80c is fastened to the lower ends of the first and second bracket portions 60, 70 with bolts 85.

The second cover plate 80b has a third mounting portion 81e provided at a side end of the flat surface portion 81b and integrally formed with the flat surface portion 81b. The third mounting portion 81e is fastened to the intermediate portion between the first and second bracket portions 60, 70 with a bolt 86. Thus, the second cover plate 80b is fastened to the first and second bracket portions 60, 70 by the bolts 86.

In the modification shown in FIG. 4, the first to third cover plates 80a, 80b, 80c are formed separately. Therefore, the first to third cover plates 80a, 80b, 80c are smaller than the cover plate 80 (see FIG. 3), and the manufacture thereof is easy.

Also, the first to third cover plates 80a, 80b, 80c are separately attached to the first and second bracket portions 60, 70. Therefore, the first to third cover plates 80a, 80b, 80c can be easily attached to the first and second bracket portions 60, 70.

Next, the operation of the brake device 100 will be described.

When the railway vehicle is running, the wheels 1 are rotating at high speed. When the brake device 100 is switched to the braking state by the driver's operation or the like, compressed air is supplied from the air pressure source to the air pressure cylinder 17 through the through hole 18. As a result, the pneumatic cylinder 17 extends and presses the brake lining 11a against the brake disc 2a.

The outer surface 81d of the cover body 81 faces the outer surface of the brake body 10 on the side opposite to the wheel 1 with a predetermined distance, so that the sliding of the brake body 10 is not hindered by the cover body 81. Therefore, the pneumatic cylinder 17 slides the brake main body 10 to press the brake lining 11b against the brake disc 2b when the brake lining 11a is pressed against the brake disc 2a.

When the brake discs 2a and 2b are pressed by the brake linings 11a and 11b, respectively, a frictional force is generated and the rotation of the wheel 1 is braked. As a result, the railway vehicle slows down and eventually stops.

When the braking of the wheel 1 by the brake device 100 is released by the driver's operation or the like, the pneumatic cylinder 17 contracts by the restoring force of a spring (not shown), and separates the brake linings 11a, 11b from the brake discs 2a, 2b. As a result, the wheel 1 can rotate without being affected by the brake device 100.

In a railway vehicle with variable wheel spacing, the wheels 1 move in the rotation axis direction according to different rail spacings such as narrow gauge and standard gauge. The brake main body 10 is supported by the first and second slide pins 31 and 32 so as to be movable in the rotation axis direction of the wheel 1, and therefore follows the wheel 1. Therefore, even if the position of the wheel 1 changes in the direction of the central axis of rotation, the brake body 10 can clamp the wheel 1 at the moving position during the braking operation.

The brake device 100 can be applied to vehicles other than railway vehicles with variable wheel spacing. The brake main body 10 is slidably supported in the axial direction with respect to the first and second slide pins 31 and 32, and thus moves with respect to the first and second bracket portions 60 and 70. Therefore, even if the brake support member 50 is attached to the truck with the first and second bracket portions 60 and 70 displaced from the wheel 1, the brake body 10 can be arranged at a desired position corresponding to the wheel 1. You can

When the railway vehicle is traveling, foreign matter such as dust, ash, and snow may be rolled up toward the first bracket portion 60 and the second bracket portion 70 due to the rotation of the wheels 1.

Here, in the brake device in which the space between the first bracket portion 60 and the second bracket portion 70 is not covered, the wound foreign matter flows between the first bracket portion 60 and the second bracket portion 70, There is a risk that the inner surface 60a of the first bracket portion 60 and the inner surface 70a of the second bracket portion 70 may be attached.

When foreign matter adheres to the inner side surfaces 60a and 70a, the foreign matter is pressed against the first bracket portion 60 and the second bracket portion 70 by the brake body 10 while the brake body 10 slides, and the first bracket portion 60 and the second bracket portion 70. Accumulate in. Therefore, the movement range of the brake body 10 may be narrowed.

On the other hand, in the present embodiment, since the cover body 81 covers the space between the first bracket portion 60 and the second bracket portion 70, foreign matter flows between the first bracket portion 60 and the second bracket portion 70. It's hard to do. Therefore, foreign matter is unlikely to adhere to the inner side surface 60a of the first bracket portion 60 and the inner side surface 70a of the second bracket portion 70, and even if the brake body 10 slides, the foreign matter does not reach the first and second bracket portions 60, 70. It is hard to collect. Therefore, it is possible to prevent the movement range of the brake main body 10 from being narrowed due to the foreign matter.

Further, in the present embodiment, the gap between the upper end of the cover body 81 and the dolly is closed by the first mounting portion 82, so that foreign matter is unlikely to flow between the cover plate 80 and the dolly. Therefore, it is possible to prevent foreign matter from accumulating between the cover plate 80 and the carriage.

<Second Embodiment>
Next, a brake device 200 according to the second embodiment of the present invention will be described with reference to FIGS. 5 and 6. Below, it demonstrates centering around a different point from 1st Embodiment, attaches|subjects the same code|symbol to the same structure as 1st Embodiment, and abbreviate|omits description.

The brake device 200 includes first and second cover plates 87 and 88 as cover portions. The second cover plate 88 is formed separately from the first cover plate 87, and is arranged below the first cover plate 87.

The first cover plate 87 includes a first curved portion 87a formed to correspond to the outer shape of the first pin receiving portion 15 on the side opposite to the wheel 1, and a first mounting portion provided on the upper edge of the first curved portion 87a. And a portion 87b. The first curved portion 87a and the first mounting portion 87b are integrally formed by a metal plate material.

The first mounting portion 87b is fastened to the upper ends of the first and second bracket portions 60, 70 with bolts 84. Thus, the first cover plate 87 is fastened to the first and second bracket portions 60, 70 by the bolts 84.

The first bending portion 87a is separated from the first pin receiving portion 15 as it goes downward. Therefore, the foreign matter scraped off from the outer surface 87c of the first bending portion 87a when the brake body 10 slides easily passes downward between the first pin receiving portion 15 and the first bending portion 87a. Therefore, it is possible to more reliably prevent foreign matters from accumulating in the first and second bracket portions 60, 70.

Further, the first curved portion 87a is further away from the first pin receiving portion 15 as it goes from both ends in the sliding direction of the brake body 10 toward the center. Therefore, the foreign matter scraped off from the outer surface 87c of the first curved portion 87a when the brake body 10 slides is easily sent to the center along the outer surface 87c. Therefore, it is possible to more reliably prevent foreign matters from accumulating in the first and second bracket portions 60, 70.

The second cover plate 88 corresponds to the outer shape of the yoke portion 14 on the side opposite to the wheel 1 and the outer shape of the second pin receiving portion 16 on the side opposite to the wheel 1. It has the formed 2nd curved part 88b and the 2nd attachment part 88c provided in the side edge of the plane part 88a. The flat surface portion 88a, the second curved portion 88b, and the second mounting portion 88c are integrally formed by a metal plate material.

The second mounting portion 88c is fastened to the intermediate portion between the first and second bracket portions 60, 70 by the bolt 86. In this way, the second cover plate 88 is fastened to the first and second bracket portions 60, 70 by the bolts 86, and a gap is formed between the second cover plate 88 and the carriage.

The second curved portion 88b is separated from the second pin receiving portion 16 as it goes downward. Therefore, the foreign matter scraped off from the outer surface 88d of the second bending portion 88b when the brake body 10 slides easily falls down through the space between the second pin receiving portion 16 and the second bending portion 88b. Therefore, it is possible to more reliably prevent foreign matters from accumulating in the first and second bracket portions 60, 70.

Further, the second bending portion 88b is further apart from the second pin receiving portion 16 as it goes from both ends in the sliding direction of the brake body 10 toward the center. Therefore, the foreign matter scraped off from the outer surface 88d of the second curved portion 88b when the brake body 10 slides is easily sent to the center along the outer surface 88d. Therefore, it is possible to more reliably prevent foreign matters from accumulating in the first and second bracket portions 60, 70.

The first cover plate 87 and the second cover plate 88 are arranged with a space between the lower end 87f of the first cover plate 87 and the upper end 88f of the second cover plate 88. That is, the cover portion is formed with the opening 89 communicating with the gap between the second cover plate 88 and the carriage.

The foreign matter attached to the outer surface 87c of the first curved portion 87a is scraped off by the first pin receiving portion 15 when the brake body 10 slides, and passes through the opening 89 into the gap between the second cover plate 88 and the carriage. Sent. Therefore, it is difficult for foreign matter to be sent to the brake body 10, and it is possible to more reliably prevent foreign matter from accumulating in the first and second bracket portions 60, 70 when the brake body 10 slides.

The opening 89 is located below the first slide pin 31 and above the second slide pin 32. Therefore, the foreign matter scraped off from the outer surface 87c of the first curved portion 87a by the first pin receiving portion 15 is likely to be sent between the second cover plate 88 and the carriage through the opening 89, and the second slide pin It is difficult to send to 32 and the 2nd pin receiving part 16. Therefore, it is possible to more reliably prevent foreign matter from accumulating in the first and second bracket portions 60, 70 when the brake body 10 slides.

In the brake device 200, the opening 89 is located below the lower end 31a of the first slide pin 31, but the opening 89 may be located above the lower end 31a of the first slide pin 31. That is, the opening 89 may be located below the upper end 31b of the first slide pin 31 and above the second slide pin 32.

The lower end 87f of the first cover plate 87 may be disposed below the upper end 88f of the second cover plate 88. In this case, since the opening 89 is formed below the upper end 88f of the second cover plate 88, foreign matter is not sent to the second slide pin 32 and the second pin receiving portion 16. Therefore, it is possible to more reliably prevent foreign matter from accumulating in the first and second bracket portions 60, 70 when the brake body 10 slides.

The opening 89 is formed by arranging the first and second cover plates 87 and 88 formed of a plate material with a space therebetween. Therefore, it is not necessary to form an opening (hole) in the plate material. Therefore, the cover portion can be manufactured more easily.

Also in the second embodiment described above, as in the first embodiment, the first and second cover plates 87 and 88 cover the space between the first bracket portion 60 and the second bracket portion 70, so that the brake body 10 and the cover are covered. Foreign matter larger than this gap does not flow into the predetermined gap between the plates 87 and 88. Even if foreign matter smaller than the predetermined gap flows into this gap, the foreign matter has a weak adhesive force and is removed by the vibration or sliding operation applied to the brake body 10. Therefore, foreign matter is unlikely to adhere to the inner side surface 60a of the first bracket portion 60 and the inner side surface 70a of the second bracket portion 70, and even if the brake body 10 slides, the foreign matter does not reach the first and second bracket portions 60, 70. It is hard to collect. Therefore, it is possible to prevent the movement range of the brake main body 10 from being narrowed due to the foreign matter.

The first curved portion 87a facing the first pin receiving portion 15 is limited to a configuration in which the upper end 87d of the first curved portion 87a is closest to the first pin receiving portion 15 and is separated from the first pin receiving portion 15 toward the lower side. I can't. For example, the vertical middle portion 87e of the first curved portion 87a may be closest to the first pin receiving portion 15, and may be further apart from the first pin receiving portion 15 as it goes from the middle portion 87e to the lower end 87f.

That is, the outer surface 87c of the first cover plate 87 as the cover portion is located above the lower end 87f of the outer surface 87c and is located closer to the brake main body 10 than the lower end 87f. It suffices to have the portion 87e, and to be farther from the brake main body 10 toward the lower end 87f from the upper end 87d or the intermediate portion 87e.

Similarly, the outer surface 88d of the second cover plate 88 serving as the cover portion is located above the lower end 88e of the outer surface 88d and is located nearer to the lower end 88e nearer the upper end 88f as the proximal portion located closer to the brake body 10. It suffices to have the intermediate portion 88g, and be farther from the brake main body 10 as it goes from the upper end 88f or the intermediate portion 88g to the lower end 88e.

Further, in the brake device 200, the first curved portion 87a faces the first pin receiving portion 15, but the portion facing the first pin receiving portion 15 may be formed in a flat plate shape. Similarly, instead of the second curved portion 88b, a portion facing the second pin receiving portion 16 may be formed in a flat plate shape.

In the brake apparatus 200, both ends of the first and second cover Plate 87, 88 in the sliding direction of the brake body 10 is formed without corners arcuate. At least one of the ends of the first and second cover Plate 87, in place of the arcuate shape, may be formed into a shape having corners. If both ends of the first and second cover Plate 87 is formed into a shape having corners, machining of the first and second cover Plate 87 and 88 is easy and the manufacturing cost of the brake system 200 It can be reduced.

<Third Embodiment>
Next, a brake device 300 according to the third embodiment of the present invention will be described with reference to FIGS. 7 and 8. Below, it demonstrates centering around a different point from 1st Embodiment, attaches|subjects the same code|symbol to the same structure as 1st Embodiment, and abbreviate|omits description. Further, in FIG. 8, the brake main body 10, the first and second slide pins 31, 32, and the boot 33 are not shown.

The brake device 300 includes a plurality of cover blocks (block materials) 90 as cover portions. The cover block 90 is formed of a resin material having bubbles inside, such as foamed rubber, and is arranged in the sliding direction of the brake body 10. That is, the cover portion is divided in the sliding direction of the brake body 10.

Each cover block 90 has a hole 90a through which the shaft 91 is inserted. One end of the shaft 91 is inserted into a hole (not shown) formed in the first bracket portion 60, and the other end of the shaft 91 is inserted into a hole (not shown) formed in the second bracket portion 70. It

The shaft 91 is screwed with the nut 92 and is fastened to the first and second bracket portions 60 and 70 in a state where both end portions are inserted into the holes of the first and second bracket portions 60 and 70. The cover block 90 is attached to the first and second bracket portions 60 and 70 by fastening the shaft 91 to the first and second bracket portions 60 and 70.

Each cover block 90 has an outer surface 90b that is located between the first bracket portion 60 and the second bracket portion 70 of the outer surface of the brake body 10 and faces the outer surface opposite to the wheel 1. The outer surface 90b has a predetermined gap with the brake body 10 when the cover block 90 is attached to the first and second bracket portions 60, 70. This predetermined gap does not change even when the brake body 10 slides. Therefore, the sliding of the brake body 10 is not obstructed by the cover block 90.

Since the cover block 90 is made of a resin material, the temperature of the cover block 90 is hard to drop. Therefore, it is difficult for snow to adhere to the outer surface 90b of the cover block 90. Therefore, it is possible to more reliably prevent the movement range of the brake main body from being narrowed due to snow. Further, since the cover block 90 is made of a resin material having air bubbles inside, the weight of the cover block 90 can be reduced.

Further, the cover block 90 has a sufficient thickness in the direction intersecting with the sliding direction of the brake body 10 in order to fill the space between the first bracket portion 60 and the second bracket portion 70. Therefore, the strength of the cover block 90 can be increased.

The brake device 300 may include the metallic cover plate 80 (see FIG. 3) according to the first embodiment on the outer surface 90b of the cover block 90. In this case, since the metal cover plate 80 protects the resin cover block 90, the cover block 90 can be prevented from being deformed.

In the brake device 300, the cover block 90 is divided into a plurality of pieces in the sliding direction of the brake body 10, but the cover block 90 may not be divided. In the form in which the cover block 90 is divided, by increasing or decreasing the number of the cover blocks 90, the brake device 300 can be more flexibly applied to a plurality of vehicles having different intervals between the first bracket portion 60 and the second bracket portion 70. Can be adapted.

In the brake devices 100 and 200 (see FIGS. 3 and 5), the cover plate 80 and the first and second cover plates 87 and 88 may be divided in the sliding direction of the brake body 10. Even in this case, by increasing or decreasing the number of the divided bodies of the cover plates 80, 87, 88, the braking devices 100, 200 can be applied to a plurality of vehicles having different intervals between the first bracket portion 60 and the second bracket portion 70. Can be handled more flexibly.

In the above description of the first to third embodiments, the brake devices 100, 200, 300 are of the floating type, but the present embodiment is also applicable to the opposed piston type, tread type, lever link type brake devices. Is.

Hereinafter, the configuration, operation, and effect of the embodiment of the present invention will be collectively described.

The braking devices 100, 200, 300 include first and second bracket portions 60, 70 provided on a vehicle body or a bogie, and first and second extending between the first bracket portion 60 and the second bracket portion 70. The second slide pins 31 and 32, the brake main body 10 slidably supported in the extending direction with respect to the first and second slide pins 31 and 32 to brake the rotation of the wheel 1, and the outer surface of the brake main body 10 Outer surfaces 81d, 87c, 88d, 90b that are located between the first and second slide pins 31 and 32 and face the outer surface on the side opposite to the wheel 1 with a predetermined distance are provided. The cover plate 80, 87, 88 or the cover block 90 is provided so as to cover between the second bracket portion 70 and the second bracket portion 70.

In this configuration, the cover plates 80, 87, 88 or the cover block 90 have the outer surfaces 81d, 87c, 88d, 90b facing the outer surface of the brake main body 10 opposite to the wheels 1 with a predetermined distance. A predetermined gap is formed between 10 and the cover plates 80, 87, 88 or the cover block 90. Since the cover plates 80, 87, 88 or the cover block 90 covers between the first bracket portion 60 and the second bracket portion 70, foreign matter larger than this gap does not flow into the predetermined gap. Even if foreign matter smaller than the predetermined gap flows into this gap, the foreign matter has a weak adhesive force and is removed by the vibration or sliding operation applied to the brake body 10. Therefore, it is difficult for foreign matter to adhere to the inner side surface 60a of the first bracket portion 60 and the inner side surface 70a of the second bracket portion 70, and even if the brake body 10 slides, the first bracket portion 60 and the second bracket portion 70 do not. It is difficult for foreign matter to accumulate. Therefore, it is possible to prevent the movement range of the brake main body 10 from being narrowed due to the foreign matter.

Further, the brake device 200 is characterized in that a gap is formed between the cover plates 87, 88 and the vehicle body or the bogie, and the cover plates 87, 88 are plate materials having an opening 89 communicating with the gap.

In this configuration, since the opening 89 communicating with the gap between the cover plates 87, 88 and the vehicle body or the bogie is formed in the cover plates 87, 88, foreign matter adhering to the outer surface 87c slides on the brake body 10. When it is scraped off by the brake main body 10, it is sent through the opening 89 between the cover plate 88 and the vehicle body or the carriage. Therefore, it is possible to more reliably prevent foreign matters from accumulating in the first bracket portion 60 and the second bracket portion 70 when the brake body 10 slides.

Further, in the brake device 200, the second slide pin 32 is located below the first slide pin 31, and the opening 89 is located below the upper end 31b of the first slide pin 31 and above the second slide pin 32. It is characterized by being located.

In this configuration, the opening 89 is located below the upper end 31b of the first slide pin 31 and above the second slide pin 32. Therefore, when the foreign matter attached to the outer surface 87c of the cover plate 87 is scraped off by the first pin receiving portion 15 that slides with respect to the first slide pin 31, it is between the cover plate 88 and the vehicle body or the carriage. It is easy to feed through the opening 89 and difficult to feed to the second slide pin 32. Therefore, it is possible to more reliably prevent foreign matters from accumulating in the first bracket portion 60 and the second bracket portion 70 when the brake body 10 slides.

Further, in the brake device 200, the cover plates 87, 88 are plate members divided in the vertical direction, and the opening 89 is formed by arranging the cover plates 87, 88 at intervals. And

In this configuration, since the opening 89 is formed by arranging the cover plates 87 and 88 at a distance from each other, it is not necessary to form an opening (hole) in the plate material. Therefore, the cover plates 87 and 88 can be manufactured more easily.

Further, the brake device 300 is characterized in that the cover block 90 is formed of a resin material and fills a space between the first bracket portion 60 and the second bracket portion 70.

In this configuration, since the cover block 90 is made of a resin material, the temperature of the cover block 90 is unlikely to drop and the outer surface 90b of the cover block 90 is unlikely to have snow. Therefore, it is possible to prevent the movement range of the brake main body 10 from being narrowed due to snow. Further, the cover block 90 has a sufficient thickness in the direction intersecting the sliding direction of the brake main body 10 in order to fill the space between the first bracket portion 60 and the second bracket portion 70. Therefore, the strength of the cover block 90 can be increased.

The brake device 300 is further characterized by further including a metal cover plate 80 that covers the cover block 90 and forms an outer surface 81d.

In this configuration, since the metal cover plate 80 that covers the cover block 90 forms the outer surface 81d, the cover block 90 is unlikely to be deformed by an external force. Therefore, the strength of the cover block 90 can be increased.

Further, the brake devices 100, 200, 300 are characterized in that the cover plates 80, 87, 88 or the cover block 90 are divided in the sliding direction of the brake body 10.

In this configuration, the cover plates 80, 87, 88 or the cover block 90 are divided into a plurality of pieces in the sliding direction of the brake body 10, so that the first bracket portion 60 and the second bracket portion 60 can be increased or decreased by increasing or decreasing the number of divided bodies. The brake devices 100, 200, 300 can be more flexibly adapted to a plurality of vehicles having different distances from the portion 70.

Further, in the braking device 200, the outer surfaces 87c, 88d are located above the lower ends 87f, 88e of the outer surfaces 87c, 88d, and are located at the upper ends 87d, 88f or the intermediate portions located closer to the brake body 10 than the lower ends 87f, 88e. It has the portions 87e and 88g, and is characterized in that it is farther from the brake main body 10 as it goes from the upper ends 87d and 88f or the intermediate portions 87e and 88g toward the lower ends 87c and 88d.

In this configuration, the outer surfaces 87c, 88d are more distant from the brake main body 10 as they go from the upper ends 87d, 88f or the intermediate portions 87e, 88g to the lower ends 87f, 88e, and thus are scraped off from the outer surfaces 87c, 88d when the brake main body 10 slides. Foreign matter is likely to fall downward from the upper ends 87d, 88f or the intermediate portions 87e, 88g through the space between the brake body 10 and the cover plates 87, 88. Therefore, it is possible to more reliably prevent foreign matter from accumulating in the first bracket portion 60 and the second bracket portion 70.

Further, in the brake device 200, the outer surfaces 87c and 88d are characterized in that the outer surfaces 87c and 88d are more distant from the brake main body 10 toward the center from the end in the sliding direction of the brake main body 10.

In this configuration, since the outer surfaces 87c and 88d move away from the brake main body 10 from the ends toward the center, foreign matter scraped off from the outer surfaces 87c and 88d when the brake main body 10 slides moves to the center along the outer surfaces 87c and 88d. Easy to send. Therefore, it is possible to more reliably prevent foreign matter from accumulating in the first bracket portion 60 and the second bracket portion 70.

Further, in the brake device 100, the cover plate 80 is characterized in that it has an upper surface 82a that closes between the upper end of the outer surface 80d and the vehicle body or the bogie.

In this configuration, since the upper surface 82a of the cover plate 80 closes the upper end of the outer surface 80d and the vehicle body or the dolly, it is difficult for foreign matter to flow between the cover plate 80 and the vehicle body or the dolly. Therefore, it is possible to prevent foreign matter from accumulating between the cover plate 80 and the vehicle body or the bogie.

Although the embodiment of the present invention has been described above, the above embodiment merely shows a part of the application example of the present invention, and the technical scope of the present invention is limited to the specific configuration of the above embodiment. Absent.

DESCRIPTION OF SYMBOLS 1... Wheel, 10... Brake main body, 31... 1st slide pin (guide part, 1st guide member), 32... 2nd slide pin (guide part, 2nd guide member), 60 ... 1st bracket part (1st support part), 70... 2nd bracket part (2nd support part), 80... Cover plate (cover part), 81d... Outer surface, 82a... Top surface, 87... First cover plate (cover portion), 87c... Outer surface, 88... Second cover plate (cover portion), 88d... Outer surface, 89... Opening portion, 90... -Cover block (cover), 90b... Outer surface, 100, 200, 300... Brake device

Claims (10)

First and second support portions provided on the vehicle body or the carriage,
A guide portion extending between the first support portion and the second support portion;
A brake main body that is slidably supported in the extending direction with respect to the guide portion and brakes the rotation of the wheels;
Of the outer surface of the brake main body, the outer surface is located between the first support portion and the second support portion and faces the outer surface opposite to the wheel with a predetermined distance. And a cover part that is provided so as to cover a space between the part and the second support part. A gap is formed between the cover portion and the vehicle body or the bogie,
The brake device according to claim 1, wherein the cover portion is a plate member having an opening communicating with the gap. The guide portion includes a first guide member and a second guide member located below the first guide member,
The brake device according to claim 2, wherein the opening is located below an upper end of the first guide member and above the second guide member. The cover part is a plurality of plate members divided in the vertical direction,
The brake device according to claim 2 or 3, wherein the opening portion is formed by arranging the plurality of plate members with a space therebetween. The brake device according to claim 1, wherein the cover portion includes a block material that is formed of a resin material and fills a space between the first support portion and the second support portion. The brake device according to claim 5, wherein the cover portion further includes a metal plate member that covers the block material and forms the outer surface of the cover portion. The brake device according to any one of claims 1 to 6, wherein the cover portion is divided in a sliding direction of the brake body. The outer surface of the cover portion has a proximal portion located above a lower end of the outer surface of the cover portion and closer to the brake body as compared with the lower end, and from the proximal portion to the lower end. The brake device according to any one of claims 1 to 7, wherein the brake device further separates from the brake main body. The brake device according to any one of claims 1 to 8, wherein the outer surface of the cover portion is more distant from the brake main body as it goes from the end in the sliding direction of the brake main body toward the center. The brake device according to any one of claims 1 to 9, wherein the cover portion has an upper surface that closes between the upper end of the outer surface of the cover portion and the vehicle body or the bogie.