JP4422283B2 - Brake lining mounting mechanism - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a brake lining mounting mechanism used for vehicles such as railways.
[0002]
[Prior art]
Since the brake lining wears when braking the vehicle, it must be replaced periodically.
Conventionally, for example, as shown in FIG. 9, scissor rubber 110 is sandwiched between a brake lining 100 with a brake shoe and a lining plate 120, and an S-shaped wire (not shown) is passed between two protrusions 121 of the brake lining plate 120. By tightening these protrusions 121 and bending the brake lining plate 120 and the scissor rubber 110, the brake lining 100, the scissor rubber 110, and the brake lining plate 120 are fixed to each other, and these integrated parts are shown in an enlarged view of a main part in FIG. As shown in the figure, the brake lining 100 is attached to the vehicle by fixing it to a brake head (not shown) with a bolt 130 and further binding the two holes 131 passing through the head of the bolt 130 with a wire for preventing loosening. Yes.
In addition, the above-described operation is performed in reverse.
[0003]
[Problems to be solved by the invention]
By the way, in a state where the brake lining plate 120 is still attached to the vehicle, it is not possible to secure a working space enough to pass the S-shaped wire through the protrusion 121 or remove it from the structure of the vehicle.
For this reason, conventionally, when replacing the brake lining 100, it was necessary to remove and attach all of the brake lining 100, the scissors rubber 110, and the brake lining plate 120. However, since the weight of the integrated body such as the brake lining 100 described above is usually about 9 kg, the labor load at the time of replacement is large and the required time is long.
[0004]
In addition, even if the wire for locking the lock is tightly bound, the brake lining 100 may fall off together with the brake lining plate 120 because the bolt is loosened.
[0005]
An object of the present invention is to provide a mechanism for attaching a brake lining that can be easily replaced to a vehicle. It is also to provide a mechanism for securely attaching the brake lining to the vehicle.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the invention according to claim 1 is a brake lining attachment comprising a brake lining (2) and a brake lining plate (for example, main body 122) attached to the vehicle while holding the brake lining. It is a mechanism (1), and is provided in the insertion portion (for example, the flange portion 22b) provided in the brake lining and the brake lining plate so as not to come into contact with the vehicle during braking, and the brake lining is connected to the brake lining. A lining holding portion (for example, a guide member 32) that inserts and holds the insertion portion so that it can be pulled out when the lining plate is pushed along the surface of the brake lining plate from one end side of the lining plate, and one end portion of the brake lining is Mounting means for removably attaching to the brake lining plate (eg lock pin ) And, with a,
The filling portion is a convex portion protruding laterally from the peripheral end surface of the brake lining (2),
The lining holding portion is a concave portion provided at a position corresponding to the convex portion of the brake lining plate with an opening side facing the inside of the brake lining plate,
A stopper member (for example, a guide block 35) that prevents the protrusion from being inserted to the deepest part of the recess is formed on the brake lining plate, and has a front surface perpendicular to the recess. It is provided so as to be positioned in front of the surface and behind the opening of the recess .
[0007]
According to the first aspect of the present invention, the brake lining filling portion is fitted and held in the lining holding portion. For this reason, the brake lining can be fixed to the brake lining plate only by fixing one end side of the brake lining with a fixing means such as a bolt.
Further, when removing the brake lining, the brake lining can be removed from the brake lining plate by removing the attaching means and pulling it out from one end side.
That is, since the brake lining can be attached / detached to / from the brake lining plate only by pushing and pulling from one end side, the brake lining plate can be replaced while being attached to the lower part of the vehicle.
As a result, only the brake lining is handled when replacing the brake lining, and the weight is significantly reduced. In addition, the time required for replacing the brake lining is significantly shortened.
Further, since the lining holder does not contact the vehicle during braking, the braking performance of the brake lining is not affected.
[0008]
Further, since the brake lining plate may be completely fixed to the vehicle, the brake lining plate can be attached to the vehicle with a mounting structure stronger than before, such as welding. Therefore, the possibility that the brake lining / brake lining plate will drop is lower than before.
[0009]
Moreover, the said insertion part is the convex part protruded from the peripheral end surface of the brake lining to the horizontal direction, and the said lining holding | maintenance part is a recessed part corresponding to this convex part. That is, the brake lining can be attached to the brake lining plate by fitting the convex portion of the peripheral end surface of the brake lining into the concave portion. Therefore, the brake lining can be replaced more easily.
[0010]
Further, the convex portion is received by the stopper member and does not contact the deepest portion of the concave portion. Therefore, a load is not applied to the deepest portion of the concave portion due to vibration or the like during traveling of the vehicle, and the concave portion is not damaged.
[0011]
According to a second aspect of the invention, in the invention according to the first SL placement, the brake lining, a brake shoe for braking the rotation and pressed against the brake disk (e.g., resin block 21), and holds the brake shoe And a brake shoe holding member (for example, mounting plate 22) to be pushed into the lining holding portion.
[0012]
According to the second aspect of the present invention, the brake shoe is attached to the vehicle when the brake shoe holding member is pushed into the lining holding portion. For this reason, it is not necessary to make the brake shoe into a shape that matches the lining holder. That is, the conventional brake shoe can be used as it is.
[0015]
A third aspect of the invention is characterized in that, in the first or second aspect of the invention, the corner of the brake lining is chamfered.
[0016]
According to the third aspect of the present invention, the corners of the brake lining are chamfered, and the brake lining is not caught in the middle of pushing / pulling, so that the brake lining can be replaced more easily.
[0021]
The invention according to claim 4 is the invention according to any one of claims 1 to 3 , wherein the attachment means is removable from one end side of the brake lining plate while sandwiching the brake lining plate and the brake lining. A pinch member (for example, a hook 43 of the lock pin 4) to be inserted into the pin is provided.
[0022]
According to the fourth aspect of the present invention, since the pinching member as the attachment means can be inserted or removed from one end side of the brake lining plate, the brake lining can be replaced more easily.
[0023]
The invention according to claim 5 is the invention according to claim 4 , wherein the pinching member is provided on the pinching member and meshes with a part of the brake lining plate by a biasing force from a biasing means (for example, a leaf spring 44). A pull-out preventing member (for example, barb 45) for preventing the pull-out of the wire is provided.
[0024]
According to the fifth aspect of the present invention, the pinching member is not pulled out when the pull-out preventing member meshes with a part of the brake lining plate. Further, the pinching member can be pulled out by applying a force larger than the biasing force to the pull-out preventing member in the counter-biasing direction. Accordingly, the brake lining can be more securely attached to the brake lining plate while maintaining the simplicity of attachment / detachment.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
First, the configuration will be described.
As shown in FIGS. 1 to 4, the brake lining mounting mechanism 1 is a mechanism that pushes the brake lining 2 into the lining holder 3 from the side along the surface of the lining holder 3 and fixes it with the lock pin 4. Here, as shown in FIG. 1, the direction in which the lock pin 4 is pulled out is opposite to the direction of gravity G.
[0026]
As shown in FIGS. 1 and 5, the brake lining 2 is roughly constituted by a resin block 21 that is a brake shoe and has a substantially trapezoidal cross-sectional shape, and an attachment plate 22 that attaches and holds the resin block 21 by welding.
The mounting plate 22 has a substantially square shape in which both end sides of the rectangle are pushed and bent to the lower side, and includes three substantially trapezoidal mounting portions 22a for mounting the resin block 21, and the lower side is arranged on the lower side. The removed peripheral portion is provided with a flange portion 22b (convex portion) to be inserted into the guide member 32 (details will be described later). Further, each end portion of the flange portion 22b is chamfered to be a curved surface so as to be easily inserted into the guide member 32.
[0027]
As shown in FIGS. 1 and 6, the lining holder 3 has a configuration in which the following members are provided on one surface of a main body 122 (see FIG. 7) of a conventional brake lining plate 120.
That is, the guide member 32 having a substantially U-shaped cross section is attached by welding with the opening side facing the inner side of the lining holder 3 except for one side and a corner at a position corresponding to the flange portion 22b. Therefore, there is no guide member 32 on the lower side of the lining holder 3.
Further, one side where the guide member 32 is not provided is thin, and the concave portion 33 is formed by welding the holding block 34 to the outer end of the thin portion. The concave portion 33 is used to guide the lock pin 4 (details will be described later). The holding block 34 has a configuration in which an upper end 34a is hung with a barb 45 (details will be described later), and a recess 34b is provided on a part of the side surface on the lock pin 4 side so that the barb 45 is easily pushed. Here, the guide member 32 is placed on the recess 33.
[0028]
Here, since the guide member 32 is usually formed by bending a plate material, the strength of the bent portion may be weakened. Therefore, a guide block 35 made of a material having higher wear resistance than the guide member 32 (for example, S45C steel when the material of the guide member 32 is SS400 steel) is provided at a position corresponding to each corner of the flange portion 22b. Is attached so as to be positioned in front of the vertical surface 32 a of the guide member 32 and behind the opening of the guide member 32. As a result, the brim portion 22b is received by the guide block 35 without contacting the vertical surface 32a.
[0029]
As shown in each drawing of FIG. 8, the lock pin 4 is schematically configured by a plate-like main body 41 and a cover plate 42 fixed to the upper surface of the plate spring member 41.
[0030]
One end of the main body 41 is bent downward to form a hook 43, and the other end side has a leaf spring 44 whose holding block 34 side is divided into two branches from the main body 41.
The tip of the hook 43 is slightly widened so that the lining holder 3 can be easily received. The width of the receiving portion of the hook 43 is slightly wider than the thickness of the lining holder 3 so that a screwdriver or the like can be inserted even when the lining holder 3 is being received.
The leaf spring 44 is provided with a barb 45 which is hooked to one end 34a of the holding block 34 at the tip. That is, the return 45 is applied to the upper end 34 a by the urging force of the leaf spring 44 and prevents the lock pin 4 from being pulled out. The surface of the barb 45 on the side of the holding block 34 is tapered so that the lock pin 4 can be pushed easily.
[0031]
The cover plate 42 is wider than the main body 41, and a part thereof covers the upper part of the brake lining 2. Further, the end portion of the cover plate 42 on the side of the return 45 is positioned in front of the return 45 and contacts the guide member 32 to prevent the lock pin 4 from being pushed too much.
[0032]
That is, the lock pin 4 is attached to the lining holder 3 by hooking the hook 43 on the lower end portion of the lining holder 3 and hooking the barb 45 on the upper end 34 a of the holding block 34. At this time, the cover plate 42 presses the upper surface of the brake lining 2, whereby the lock pin 4 attaches the brake lining 2 to the lining holder 3.
[0033]
Next, the replacement process of the brake lining 2 in the brake lining mounting mechanism 1 will be described.
First, the brake lining 2 is removed according to the following steps. That is, the return 45 is pushed with a finger or the like to remove it from the upper end 34 a of the holding block 34. Then, by inserting a screwdriver or the like into the gap between the hook 43 and the lining holder 3 and rotating the screwdriver, the lock pin 4 is pulled out using the lever principle. And the brake lining 2 is pulled out by pulling out the collar part 22b from the guide member 32. FIG.
Next, a new brake lining 2 is attached according to the following steps. That is, the brake lining 2 is pushed along the lining holder 3 from the lower side to the upper side, and the brim portion 22 b is pushed into the guide member 32 until it abuts against the guide block 35. Then, the lock pin 4 is pushed along the concave portion 33, the hook 43 is hung on the lower end portion of the lining holder 3, and the return 45 is hung on the upper end 34 a of the holding block 34 to attach the brake lining 2 to the lock pin 4.
[0034]
Therefore, when the brake lining mounting mechanism 1 is used, the brake lining 2 can be replaced simply by pulling out and inserting the lock pin 4 while the lining holder 3 is mounted on the vehicle. In addition, the work time is about 0.5 minutes, which is significantly reduced from the conventional 8 minutes. Moreover, the heavy load to be moved at the time of work is only the brake lining 2 having a weight of about 4 kg, and the work load is greatly reduced.
[0035]
Moreover, since the lining holder 3 is a structure which attaches a predetermined member to the conventional brake lining board 120, the production cost is also cheap and it is not necessary to change the structure of the vehicle side. Therefore, it can be applied to the current vehicle.
[0036]
In addition, since the brake lining 2 has a plurality of resin blocks 21 attached to the mounting plate 22 and the collar portion 22b is provided on the mounting plate 22, the resin block 21 is not damaged when the brake lining 2 is replaced. Since the plurality of resin blocks 21 can be replaced by the above operation, the replacement of the brake lining is further facilitated.
[0037]
In addition, since the lining holder 3 can be fixed to the vehicle so as not to be removed by welding or the like, the possibility that the lining holder 3 falls off the vehicle together with the brake lining 2 can be reduced.
Further, one end of the lock pin 4 is a hook 43 and the other end is a barb 45, and the lining holder 3 is assembled so as to face each other. Further, the direction in which the lock pin 4 is pulled out is opposite to the direction of gravity G. Therefore, the possibility that the lock pin 4 is dropped, that is, the possibility that the brake lining 2 is dropped from the lining holder 3 is also reduced.
[0038]
In the above embodiment, the return 45 of the lock pin 4 is hung on the holding block 34. However, the present invention is not limited to this and may be hung on the brake lining plate 120.
Further, the lower end of the brake lining 2 may be fixed to the lining holder 3 with a bolt without using the lock pin 4.
In addition, the cross-sectional shape and mounting position of the guide member 32 are arbitrary, and it is needless to say that other specific configurations can be appropriately changed.
[0039]
【The invention's effect】
According to the first aspect of the present invention, since the brake lining can be replaced while the brake lining plate is attached to the lower part of the vehicle, the work impossibility is remarkably lightened, and the time required for replacing the brake lining is remarkably shortened. Further, by completely fixing the brake lining plate to the vehicle by welding or the like, the possibility of the brake lining / brake lining plate falling off can be reduced.
Further, the brake lining can be attached to the brake lining plate by fitting the convex portion of the peripheral end surface of the brake lining into the concave portion. Therefore, the brake lining can be replaced more easily.
Further, a load is not applied to the deepest portion of the concave portion due to vibration or the like when the vehicle travels, and the concave portion is not damaged.
[0040]
According to the second aspect of the present invention, since it is not necessary to form the combined brake shoe lining holder, Ru can divert the conventional brake shoe as it is. According to the invention 請 Motomeko 3 wherein, for brake linings during push-pull will not be caught in the middle, enables the replacement of the brake lining more easily.
[0042]
According to the fourth aspect of the present invention, since the pinching member as the attachment means can be inserted or removed from one end side of the brake lining plate, the brake lining can be replaced more easily.
[0043]
According to the fifth aspect of the present invention, the pinching means is not pulled out when the pull-out preventing member meshes with a part of the brake lining plate. Further, the pinching means can be pulled out by applying a force larger than the biasing force in the anti-biasing direction to the pull-out preventing member. Therefore, the brake lining can be more securely attached to the brake lining plate while maintaining the simplicity of attachment / detachment.
[Brief description of the drawings]
FIG. 1 is a perspective view of a brake lining mounting mechanism according to an embodiment to which the present invention is applied.
2 is a plan view of the brake lining mounting mechanism of FIG. 1. FIG.
3 is a side view of the brake lining mounting mechanism of FIG. 1. FIG.
4 is an end view of the brake lining mounting mechanism of FIG. 1. FIG.
FIG. 5 is a plan view of a brake lining of the brake lining mechanism of FIG. 1;
6 is a plan view of a lining holder of the brake lining mechanism of FIG. 1. FIG.
7 is a plan view of a brake lining plate of the lining holder of FIG. 6. FIG.
8A and 8B are diagrams showing a lock pin of the brake lining mechanism of FIG. 1, wherein FIG. 8A is a plan view and FIG. 8B is a side view.
FIG. 9 is an exploded perspective view showing a conventional brake lining mechanism.
10 is an enlarged view of a main part of FIG. 9;
[Explanation of symbols]
1 Brake lining mounting mechanism 2 Brake lining 21 Resin block (brake shoe)
22 Mounting plate (brake shoe holding member)
22b brim part (convex part)
4 Lock pin (mounting means)
43 Hook (pinching member)
44 Leaf spring (biasing means)
45 Reverse (Pullout prevention member)
32 Guide member (concave)
35 Guide block (stopper member)
121 Body (brake lining plate)

Claims (5)

A brake lining attachment mechanism comprising a brake lining and a brake lining plate that is attached to the vehicle while holding the brake lining,
A filling portion provided in the brake lining;
The brake lining plate is provided so as not to come into contact with the vehicle during braking, and when the brake lining is pushed along the surface of the brake lining plate from one end side of the brake lining plate, the insertion portion is pulled out. A lining holding part that can be inserted and held,
Mounting means for removably attaching one end of the brake lining to the brake lining plate,
The filling portion is a convex portion protruding laterally from the peripheral end surface of the brake lining,
The lining holding portion is a concave portion provided at a position corresponding to the convex portion of the brake lining plate with an opening side facing the inside of the brake lining plate,
The brake lining plate is provided with a stopper member that is made of a material having higher wear resistance than the concave portion and prevents the convex portion from being inserted to the deepest portion of the concave portion, and the front surface thereof is in front of the vertical surface of the concave portion and the concave portion. A brake lining mounting mechanism, characterized in that the brake lining mounting mechanism is provided so as to be positioned behind the opening . The brake lining, according to claim 1, characterized in that it comprises a brake shoe for braking the rotation and pressed against the brake disc, a brake shoe holding member is pushed into the lining holder to hold the brake shoe, the serial placement of the brake lining mounting mechanism. The brake lining mounting mechanism according to claim 1 or 2, wherein a corner portion of the brake lining is chamfered. It said mounting means, from said one end side of the brake lining plate, according to any one of claims 1 to 3, characterized in that it comprises a pinching member to be inserted into the removable while sandwiching said brake lining and the brake lining plate Brake lining mounting mechanism. The brake lining according to claim 4, further comprising a pull-out preventing member that is provided on the pinching member and meshes with a part of the brake lining plate by a biasing force from a biasing unit to prevent the pinching member from being pulled out. Mounting mechanism.

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