JPH0117707Y2 - - Google Patents
Info
- Publication number
- JPH0117707Y2 JPH0117707Y2 JP1981114434U JP11443481U JPH0117707Y2 JP H0117707 Y2 JPH0117707 Y2 JP H0117707Y2 JP 1981114434 U JP1981114434 U JP 1981114434U JP 11443481 U JP11443481 U JP 11443481U JP H0117707 Y2 JPH0117707 Y2 JP H0117707Y2
- Authority
- JP
- Japan
- Prior art keywords
- outer ring
- hole
- needle roller
- pin
- roller bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/50—Other types of ball or roller bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/45—Brakes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Description
【考案の詳細な説明】
本考案は、駐車ブレーキ装置付デイスクブレー
キに使用する針状ころ軸受に関するものである。[Detailed Description of the Invention] The present invention relates to a needle roller bearing used in a disc brake with a parking brake device.
駐車ブレーキ装置付デイスクブレーキにおい
て、駐車ブレーキの作動は、第１図示の如く、レ
バー１の回動力をピン２に伝達し、ピン２のくぼ
みに一端が係合するリンク３の図上左方動にてア
ジヤステイングスクリユ４を移動させてピストン
５を摺動させ、図外のパツドをデイスクに押圧し
て行なわれる。その際にピン２はキヤリパのボス
部６に圧入されている針状ころ軸受７にて支承さ
れて回動する。このピン２を支承する針状ころ軸
受７の外輪８には、リンク３挿通用の孔９が穿設
されている。このために、針状ころ軸受７をキヤ
リパのボス部６へ圧入装着する際に、外輪８に軸
線方向の圧縮力が作用し、孔９が形成された比較
的剛性の低い中間部分が膨出し、加えて、外輪８
の材質がキヤリパのボス部６の材質より硬いため
に、特に該孔９の尖鋭な上縁角部にてキヤリパの
ボス部６内壁、主としてリンク３挿通用孔６ａ上
縁が切削され、この切削屑によつてブレーキの機
能を阻害する欠点があつた。具体的には切削屑が
リンク３とピストン５とを接続するアジヤステイ
ングスクリユ４の基端側シール材４ａに喰い込ん
でシリンダ１０内のブレーキ油の漏洩の原因とな
り、或は針状ころ１１に付着して軸受の機能を低
下させたりすることとなる。 In a disc brake with a parking brake device, the parking brake is operated by transmitting the rotational force of the lever 1 to the pin 2 and moving the link 3 to the left in the diagram, one end of which engages with the recess of the pin 2, as shown in the first diagram. This is done by moving the adjusting screw 4 to slide the piston 5 and pressing a pad (not shown) against the disk. At this time, the pin 2 is supported and rotated by a needle roller bearing 7 that is press-fitted into a boss portion 6 of the caliper. The outer ring 8 of the needle roller bearing 7 that supports the pin 2 is provided with a hole 9 through which the link 3 is inserted. For this reason, when the needle roller bearing 7 is press-fitted into the boss portion 6 of the caliper, a compressive force in the axial direction is applied to the outer ring 8, and the relatively low-rigid intermediate portion in which the hole 9 is formed bulges out. , in addition, outer ring 8
Since the material of the caliper boss part 6 is harder than that of the caliper boss part 6, the inner wall of the caliper boss part 6, mainly the upper edge of the link 3 insertion hole 6a, is cut especially at the sharp upper edge corner of the hole 9. There was a drawback that the brake function was hindered by debris. Specifically, the cutting debris may bite into the sealing material 4a on the base end side of the adjusting screw 4 that connects the link 3 and the piston 5, causing brake fluid leakage in the cylinder 10, or causing the needle roller 11 to leak. This can lead to deterioration of bearing performance.
本考案は、かかる実情に鑑み、駐車ブレーキ装
置付デイスクブレーキに使用する針状ころ軸受の
外輪に穿設された孔の外面側の周縁角部、特に上
縁角部に積極的に面取りを施して上記の如き欠点
を有しない針状ころ軸受の提供を目的としてい
る。 In view of these circumstances, the present invention actively chamfers the outer peripheral corner, especially the upper edge corner, of a hole drilled in the outer ring of a needle roller bearing used in a disc brake with a parking brake device. The object of the present invention is to provide a needle roller bearing that does not have the above-mentioned drawbacks.
以下、本考案の実施例について図面を参照して
説明する。 Embodiments of the present invention will be described below with reference to the drawings.
７は、円筒体をなす外輪８の内部に保持器１２
にて複数個の針状ころ１１を保持した構造の通常
の針状ころ軸受である。かかる針状ころ軸受７の
外輪８に穿設形成した孔９の外面側角部のうち、
キヤリパのボス部への圧入装着時に切削屑の発生
に最も関与する上縁側角部９ａに面取り加工Ａを
施してある。ここに、外輪８の孔９の上縁は、圧
入装着時の先端から遠い側に位置する縁である。
なお、外輪の孔９の外面側周縁の上縁側角部以外
の角部、すなわち、左右縁側角部及び下縁側角部
にもそれぞれ面取り加工を施せば、針状ころ軸受
７のキヤリパのボス部への圧入装着時に発生する
切削屑の発生防止は確実となる。この面取り加工
は、外輪の孔９の角部を切削し、又はプレス加工
によつて圧潰させて施される。 7 is a cage 12 inside an outer ring 8 forming a cylindrical body.
This is a normal needle roller bearing having a structure in which a plurality of needle rollers 11 are held at a position. Among the outer corner portions of the holes 9 formed in the outer ring 8 of the needle roller bearing 7,
A chamfering process A is applied to the upper edge side corner 9a, which is most responsible for the generation of cutting chips when the caliper is press-fitted into the boss portion. Here, the upper edge of the hole 9 of the outer ring 8 is the edge located on the side far from the tip when press-fitting.
Note that if chamfering is applied to corners other than the upper corner of the outer peripheral edge of the outer ring hole 9, that is, the left and right corner and the lower corner, the boss of the caliper of the needle roller bearing 7 can be chamfered. This ensures the prevention of cutting waste generated during press-fitting. This chamfering is performed by cutting the corner of the hole 9 in the outer ring or by crushing it by pressing.
本考案に係る駐車ブレーキ装置付デイスクブレ
ーキに使用する針状ころ軸受は、叙上の如くに構
成したので、そのキヤリパのボス部への圧入装着
に際し、外輪に軸線方向の圧縮力が作用して孔の
周辺が若干膨出しても、尖鋭な角部がないので、
切削屑を発生する懼れは全くなく、従つて切削屑
がアジヤステイングスクリユのシール材に喰い込
んでシリンダ内のブレーキ油の液洩れを引き起こ
したり、針状ころに付着して軸受の機能を阻害し
たりする弊害は解消し、デイスクブレーキの信頼
性は向上する。 Since the needle roller bearing used in the disc brake with parking brake device according to the present invention is constructed as described above, when the bearing is press-fitted into the boss portion of the caliper, compressive force in the axial direction is applied to the outer ring. Even if the area around the hole bulges out slightly, there are no sharp corners, so
There is no fear of generating cutting chips, and cutting chips can get into the sealing material of the adjusting screw and cause leakage of brake oil in the cylinder, or can adhere to the needle rollers and impair the function of the bearing. This eliminates the harmful effects that may hinder the performance, and improves the reliability of disc brakes.
第１図は、駐車ブレーキ装置付デイスクブレー
キの縦断面図、第２図は、本考案に係る上縁角部
に面取りを施した針状ころ軸受の拡大縦断面図、
第３図は同側面図である。
２：ピン、３：リンク、４：アジヤステイング
スクリユ、６：キヤリパのボス部、６ａ：挿通用
孔、７：針状ころ軸受、８：外輪、９：孔、９
ａ：孔の上縁側角部。
FIG. 1 is a longitudinal sectional view of a disc brake with a parking brake device, and FIG. 2 is an enlarged longitudinal sectional view of a needle roller bearing with chamfered upper edge corners according to the present invention.
FIG. 3 is a side view of the same. 2: Pin, 3: Link, 4: Adjustment screw, 6: Caliper boss, 6a: Insertion hole, 7: Needle roller bearing, 8: Outer ring, 9: Hole, 9
a: Corner on the upper edge of the hole.
Claims (1)
の回動にてアジヤステイングスクリユを移動させ
て、制動力を発揮するデイスクブレーキのキヤリ
パのボス部に、円筒体をなす外輪が圧入され、該
外輪の孔と該ボス部の挿通用孔とに前記リンクが
挿通され、外輪の内部に保持器にて保持された針
状ころによつて前記ピンを回動可能に支承する駐
車ブレーキ装置付デイスクブレーキ用針状ころ軸
受であつて、前記外輪の孔の外面側周縁部のうち
の少なくとも上縁部角部に面取りを施したことを
特徴とする駐車ブレーキ装置付デイスクブレーキ
用針状ころ軸受。 A link, one end of which engages with the recess of the pin, moves the adjusting screw as the pin rotates, exerting braking force.A cylindrical outer ring is press-fitted into the boss of the disc brake caliper. The link is inserted into the hole of the outer ring and the insertion hole of the boss part, and the pin is rotatably supported by a needle roller held inside the outer ring by a retainer.A parking brake device is provided. A needle roller bearing for a disc brake with a parking brake device, characterized in that at least an upper edge corner of the outer peripheral edge of the hole in the outer ring is chamfered. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981114434U JPS5820735U (en) | 1981-08-03 | 1981-08-03 | Needle roller bearing for disc brake with parking brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981114434U JPS5820735U (en) | 1981-08-03 | 1981-08-03 | Needle roller bearing for disc brake with parking brake device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5820735U JPS5820735U (en) | 1983-02-08 |
| JPH0117707Y2 true JPH0117707Y2 (en) | 1989-05-23 |
Family
ID=29908710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981114434U Granted JPS5820735U (en) | 1981-08-03 | 1981-08-03 | Needle roller bearing for disc brake with parking brake device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5820735U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5324119A (en) * | 1993-03-29 | 1994-06-28 | Ntn Corporation | Needle roller bearing |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2312173A1 (en) * | 2006-10-26 | 2011-04-20 | NTN Corporation | Retainer for rocking bearing, and air disc brake |
| JP5273917B2 (en) * | 2006-10-26 | 2013-08-28 | Ｎｔｎ株式会社 | Swing bearing and air disc brake device |
| US8632256B2 (en) | 2007-06-28 | 2014-01-21 | Ntn Corporation | Rocking bearing outer ring, rocking bearing, air disc brake device, and fitting structure of rocking bearing outer ring |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3507546A (en) * | 1967-03-03 | 1970-04-21 | Schaeffler Ohg Industriewerk | Radial roller bearings |
-
1981
- 1981-08-03 JP JP1981114434U patent/JPS5820735U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3507546A (en) * | 1967-03-03 | 1970-04-21 | Schaeffler Ohg Industriewerk | Radial roller bearings |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5324119A (en) * | 1993-03-29 | 1994-06-28 | Ntn Corporation | Needle roller bearing |
| DE4328898A1 (en) * | 1993-03-29 | 1994-10-06 | Ntn Toyo Bearing Co Ltd | Needle bearing |
| DE4328898C2 (en) * | 1993-03-29 | 1997-09-11 | Ntn Toyo Bearing Co Ltd | Needle bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5820735U (en) | 1983-02-08 |
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