JPS5857531A - Device for preventing excessive wear of lining - Google Patents

Abstract

PURPOSE:To facilitate confirmation of wear of the titled lining by forming a cutout of a predetermined thickness from a surface contacting a holding plate by providing a gap in a brake caliper so that the lining peripheral edge portion can be observed. CONSTITUTION:At a shoulder portion of a pad member consisting of a lining 20q and a holding plate 22q, a cutout 28 is provided with a predetermined width and depth from the outer peripheral edge and a predetermined thickness from the holding plate 22q, at a portion of the lining 20q, which contacts with the holding plate 22q. A gap 30 is formed between a bracket B and a caliper C so that the cutout 28 can be observed. By this arrangement, the thickness and width of the lining 20q up to the cutout 28 can be measured by eyes in the direction in which the thickness of the lining 20q is visible when observing the outer periphery of the lining 20q through a gap from the slanted direction E, and hence the degree of the wear can be easily confirmed.

Description

【発明の詳細な説明】 この発明はライニングの過摩耗防止装置に関し、一層詳
細にはブレーキディスクのライニングが摩耗限界に達し
たことを外部から極めて容易に確認できるライニングの
過摩耗防止装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for preventing excessive wear of a lining, and more particularly to a device for preventing excessive wear of a lining, which makes it extremely easy to confirm from the outside that the lining of a brake disc has reached its wear limit.

従来、この種のライニングの摩耗限界を外部から確認す
るものとして、ブレーキキャリパに窓を開設して、ライ
ニングの胃縁の厚味部分に摩耗許容厚さ分だけ赤い目印
線等を引いて、これが消えるときを摩耗限界とする装置
が知られていた。しかし量産の工程でライニングにいち
いち線を引くことは煩わしく、ブレーキキャリパに窒を
設けるに至っては一層困難なことである。Conventionally, to check the wear limit of this kind of lining from the outside, a window was opened in the brake caliper and a red marker line was drawn on the thick part of the lining's stomach edge by the amount of allowable wear thickness. Devices whose wear limit is when they disappear are known. However, it is troublesome to draw lines on each lining in the mass production process, and it is even more difficult to apply nitrogen to brake calipers.

またライニングの当接表面から一定の部分を一定厚さ分
だけ陥没せしめて、この周辺が摩耗して陥没部分が周辺
と同一レベルになる時期をもってその限界とすることも
できるが、陥没部分と周辺の色調が似ていて識別しにく
いうえに、陥没部に摩耗粉末が埋まったり、陥没部のデ
ィスク回入側口縁部が開口部の方にせり出して陥没部を
見えにくくするなど陥没の程度を確認しにくい。It is also possible to make a certain part of the lining fall down by a certain thickness from the contact surface of the lining, and set the limit at the time when the surrounding area wears out and the depressed part becomes the same level as the surrounding area. Not only are the colors similar, making it difficult to identify, but the extent of the depression may be difficult to discern, such as wear particles being buried in the depression, or the edge of the disc entry side of the depression protruding toward the opening, making the depression difficult to see. Difficult to confirm.

この発明は上記欠点を解消して、外部から摩耗の程度が
確認でき、特に摩耗限界における変化が著しいうえ、目
印の加工が容易で、特別ののぞき窓を作ることのない、
ブレーキディスクの両面を押圧するようにブレーキキャ
リパ内にそれぞれ設けたライニングと保持板とから成る
バンド部材を、ライニングの外周縁部でかつ保持板に接
する面から一定厚さ分を切欠き、この切欠部を含むライ
ニングの周辺部分を外部から目視できるようにブレーキ
キャリパに間隙を設けたことを特徴とするライニングの
過摩耗防止装置を提供するにある。This invention solves the above-mentioned drawbacks, allows the degree of wear to be confirmed from the outside, changes in the wear limit in particular are remarkable, and makes it easy to process marks and eliminates the need to create a special viewing window.
A band member consisting of a lining and a retaining plate provided inside the brake caliper so as to press both sides of the brake disc is cut out by a certain thickness from the outer peripheral edge of the lining and the surface in contact with the retaining plate. To provide a device for preventing excessive wear of a lining, characterized in that a gap is provided in the brake caliper so that the peripheral part of the lining including the brake caliper can be visually observed from the outside.

以下この発明の好適な実施例を図面を参照して詳細に説
明する。Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

図示例は自動二輪車用ディスクブレーキ装置である。The illustrated example is a disc brake device for a motorcycle.

Ｄはブレーキディスク（以下単にディスクと称す）で、
車輌の前進時車軸（図示せず）と共に矢印Ｒ方向に回転
する。D is a brake disc (hereinafter simply referred to as a disc),
When the vehicle moves forward, it rotates in the direction of arrow R together with an axle (not shown).

Ｂはブラケットで、ディスクＤの一側に隣接して配置さ
れ、その上端部にはディスクＤを綺ぐように逆Ｕ字状に
屈曲する一対の腕部１０ａ、ｌｏｂが形成されている。Reference numeral B denotes a bracket, which is arranged adjacent to one side of the disk D, and has a pair of arm portions 10a and lobs bent in an inverted U shape so as to clean the disk D at its upper end.

このブラケッ）Ｂは取付ボルト１２ａ、１２ｂにより車
体、例えばフロントフォークＦに固定される。This bracket B is fixed to a vehicle body, for example, a front fork F, by mounting bolts 12a and 12b.

Ｃはブレーキキャリパ（以下単にキャリパと称す）で、
ディスクＤの回転軸と平行な一対の摺動ピストン１４ａ
、１４ｂを介して連結される。したがってブラケツ）Ｂ
はキャリパＣのディスク周方向−側（図示例ではその回
出側）にのみ配設される。C is the brake caliper (hereinafter simply referred to as the caliper),
A pair of sliding pistons 14a parallel to the rotation axis of the disk D
, 14b. Therefore, the bracket)B
is disposed only on the negative side of the caliper C in the disc circumferential direction (in the illustrated example, on the retracting side thereof).

キャリパＣは、ディスク周方向に沿って２連の油圧シリ
ンダ１６ａ、１６ｂを有し、それぞれの油圧シリンダ内
にはディスク９面に向って進退可能なポット状のピスト
ン１８　ａ、　ｌ　８　ｂが摺合されている。The caliper C has two hydraulic cylinders 16a and 16b along the circumferential direction of the disk, and pot-shaped pistons 18a and 18b that can move back and forth toward the disk 9 surface slide in each hydraulic cylinder. has been done.

第２図は、第１図のエエーエエ　断面図で、ディスクＤ
とピストン１８ａ、１８ｂとの間には、ディスクＤの側
面から２個のピストン１８ａ、１８ｂに同時に押圧され
るライニング２０ｐおよび保持板２２ｐ°を一体成形し
たパッド部材がディスク９面に直交する方向に向けた２
本のハンガーピン２４ａ、２４ｂに進退自在に吊り下げ
られている。Figure 2 is a cross-sectional view of the disk D in Figure 1.
A pad member integrally formed with a lining 20p and a retaining plate 22p, which are pressed simultaneously by the two pistons 18a and 18b from the side surface of the disk D, is provided between the disk D and the pistons 18a and 18b in a direction perpendicular to the disk 9 surface. aimed at 2
It is suspended from book hanger pins 24a and 24b so that it can move forward and backward.

またディスクＤとキャリパＣの反力側壁Ｗとの間にも同
様にライニング２０ｑ１保持板２２１Ｌから成るパッド
部材がハンガーピン２４ａ、２’４ｂに殆り下げられて
いる。Similarly, between the disk D and the reaction side wall W of the caliper C, a pad member consisting of the lining 20q1 and the holding plate 221L is substantially lowered onto the hanger pins 24a, 2'4b.

キャリパＣはピストン１８ａ、１８ｂの押圧に伴って、
ブラケットＢにｆｌされている摺動ピストン１４ａ、１
４ｂ上を進退することにより、固定軸（図示せず）の周
りを回転するディスクＤに対してパッド部材が両側から
均一に押圧するように追従する。Caliper C is pressed by pistons 18a and 18b,
Sliding piston 14a, 1 attached to bracket B
By moving back and forth on the pad member 4b, the pad member follows the disk D rotating around a fixed shaft (not shown) so as to press it uniformly from both sides.

また、第２図におけるＩＩＩ−ＩＩＩ断面を表した第３
図において明らかなように、制動時には保持板２２ｐ、
２２ｑに対してディスクＤの回出方向にトルクが発生す
るが、保持板２２ｐ、２２ｑの端側縁がブラケツ）Ｂに
支承されるため、それ以」；の移動はない。保持板２２
ｐ、２２ｑのノ・ンガーピン２４ａ、２４ｂの挿通孔２
６は若干横長になっていて微回動可能になっている。In addition, the third section representing the III-III cross section in FIG.
As is clear from the figure, during braking, the retaining plate 22p,
Torque is generated in the direction of rotation of the disk D with respect to the disk D, but since the end side edges of the holding plates 22p and 22q are supported by the bracket B, there is no further movement. Holding plate 22
Insertion holes 2 for the nozzle pins 24a and 24b of p and 22q
6 is slightly elongated and can be rotated slightly.

パッド部材の肩部においてライニング２０ｑの保持板２
２．に接する部分に外周縁から一定巾と深さ、保持板２
２ｑから一定厚さの切欠２８を設ける。The retaining plate 2 of the lining 20q at the shoulder of the pad member
2. A fixed width and depth from the outer periphery to the part in contact with the retaining plate 2
A notch 28 having a constant thickness is provided from 2q.

パッド部材は予めライニング２０ｑをケーキ状に仮成形
した後、保持板２２ｑと重ねて加熱溶着すると共に仕上
成形をするが、ライニング２０ｑの形状はほとんど仮成
形時に決まるので仮成形時に切欠を設ければ十分の精度
で仕上る。The pad member is made by pre-forming the lining 20q into a cake shape, then overlaying it with the retaining plate 22q, heat welding it, and final forming it. However, the shape of the lining 20q is mostly determined during the temporary forming process, so it is best to provide a notch during the temporary forming process. Finished with sufficient precision.

また、ライニング２０ｑの切欠２８の周辺は、ブラケッ
トＢとキャリパＣとの間から目視できるように間隙３０
を設ける。なお間１１ｉ３０の附近には矢印等のガイド
を設けるとよい。Further, a gap 30 is formed around the notch 28 of the lining 20q so that it can be visually observed from between the bracket B and the caliper C.
will be established. Note that a guide such as an arrow may be provided near the space 11i30.

このように構成すれば、間隙からライニング２０ｑの外
周縁を斜め方向Ｅから見て、ライニング２０ｑの厚みの
見える方向で切欠２８までの肉厚中がどの程度残ってい
るかを知ることができ特に摩耗限界に達すると面方向か
ら見て、第６図のような切欠２８が表れるため明瞭に識
別できる。With this configuration, when the outer peripheral edge of the lining 20q is viewed from the gap in the diagonal direction E, it is possible to know how much of the thickness of the lining 20q remains up to the notch 28 in the direction in which the thickness of the lining 20q is visible. When the limit is reached, a notch 28 as shown in FIG. 6 appears when viewed from the surface, so that it can be clearly identified.

以上この発明に係るライニングの過摩耗防止装置は、ラ
イニングの周縁方向からは摩耗限界を示す切欠の厚みが
常に見えると共に、面方向から見ると陥没部が覆われて
いて陥没部に摩耗粉末が埋ったり、陥没部のディスク回
入側口縁部が開口部の方にせり出して陥没部を見えにく
くすることがなく、摩耗限界に達した時点で瞬間的に陥
没部が開口されるので、その変化が識別しやすく、外部
からライニングの摩耗の程度を極めて容易に確認できる
うえ、特に摩耗限界における変化が著しいため識別しや
すく、目印の加工も容易で、特にのぞき窓を設ける必要
がないなどの著効を奏する。As described above, in the device for preventing excessive wear of a lining according to the present invention, the thickness of the notch indicating the wear limit is always visible from the peripheral direction of the lining, and when viewed from the surface, the recessed part is covered and wear powder is buried in the recessed part. In addition, the disc recess side mouth edge of the recess does not protrude toward the opening and make the recess difficult to see, and the recess opens instantly when the wear limit is reached, so the change in the recess does not occur. It is easy to identify, the degree of wear of the lining can be extremely easily confirmed from the outside, and the change in the wear limit is particularly noticeable, so it is easy to identify, markings are easy to process, and there is no need to provide a viewing window. Effective.

以上本発明につき好適な実施例を挙げて種々説明したが
、本発明はこの実施例に限定されるものではなく、発明
の精神を逸脱しない範囲内で多くの改変を施し得るのは
もちろんのことである。Although the present invention has been variously explained above with reference to preferred embodiments, the present invention is not limited to these embodiments, and it goes without saying that many modifications can be made without departing from the spirit of the invention. It is.

【図面の簡単な説明】[Brief explanation of the drawing]

１Δ而はこの発明に係るライニングの過摩耗防止装置の
一実施例を示し、第１図はブレーキキャリパの取付状態
を示す断面説明図、第２図は第１図のエニー１工断面図
、第３図は第２図のエエエー■１工断面図、第４図は切
欠２８をライニング２０ｐの厚みのみえる方向から見た
パッド部材の部分説明図、第５図は第４図のＶ−Ｖ断面
図、第６図はライニング２０ｐが摩耗して切欠２８が露
出した状態を面に向う方向から見たパッド部材の部分説
明図。 ご髪蚤 り、、、Ｔイスクｔ＃＝キ、　　　１　、Ｏａ　、　　
ｌ　Ｏｂ５．　腕部、　　１２ａ、１２ｂ、、、取付ボ
ルト。 Ｆｌｌ、フロントフォーク、　　　Ｃ，、、ブレーキキ
ャリパ、　　　１４ａ、１４ｂ、、、摺動ピストン。 １６ａ、１６ｂ、、、油圧シリンダ、　　　１８ａ。 １８ｔ）、、、ピストン、　　２０ｐ、２０ｑ、、。 ライニング、　　２２ｐ、２２ｑ、、、保持板。 ２４ζ、２４ｂ、、、ハンガービン、　　ｗ、、。 反力側壁、　　２６．、、挿通孔、　　２８．、、切欠
、　　３０．、、間隙、　　Ｅ、、、斜めの方向。 特許出願人 日信工業株式会社（他２名） 代表者宮下貞雄 第４図 第５図 Ｒ 第６図1Δ shows an embodiment of the lining excessive wear prevention device according to the present invention, FIG. Figure 3 is a cross-sectional view of A1 in Figure 2, Figure 4 is a partial explanatory diagram of the pad member when the notch 28 is viewed from the direction in which the thickness of the lining 20p is seen, and Figure 5 is a cross-section taken along line V-V in Figure 4. FIG. 6 is a partial explanatory view of the pad member when the lining 20p is worn and the notch 28 is exposed, viewed from the direction facing the surface. Hair flea..., T isk t#=ki, 1, Oa,
l Ob5. Arms, 12a, 12b,...Mounting bolts. Fll, front fork, C, brake caliper, 14a, 14b, sliding piston. 16a, 16b,..., hydraulic cylinder, 18a. 18t), Piston, 20p, 20q, . Lining, 22p, 22q,,, retaining plate. 24ζ, 24b, , hanger bin, w, . Reaction side wall, 26. ,,insertion hole, 28. ,,notch, 30. ,,gap,E,,,diagonal direction. Patent applicant Nissin Kogyo Co., Ltd. (2 others) Representative Sadao Miyashita Figure 4 Figure 5 R Figure 6

Claims (1)

【特許請求の範囲】[Claims] １、ブレーキディスクの両面を押圧するようにブレーキ
キャリパ内にそれぞｔ１設けたライニングと保持板とか
ら成るパッド部材を、うｆニングの外周縁部でかつ保持
板に接する而から一定厚さ分を切欠き、この切欠部を含
むライニングの周辺部分を外部から目視できるようにブ
レーキキャリパに間隙を設けたことを特徴とするライニ
ングの過摩耗防止装置。1. A pad member consisting of a lining and a retaining plate, which are provided inside the brake caliper so as to press both sides of the brake disc, is attached to a certain thickness from the outer peripheral edge of the lining and in contact with the retaining plate. A device for preventing excessive wear of a lining, characterized in that a brake caliper is provided with a gap so that a peripheral part of the lining including the notch can be visually observed from the outside.