JPH0724717Y2 - Oil bolt - Google Patents
Oil boltInfo
- Publication number
- JPH0724717Y2 JPH0724717Y2 JP1989121654U JP12165489U JPH0724717Y2 JP H0724717 Y2 JPH0724717 Y2 JP H0724717Y2 JP 1989121654 U JP1989121654 U JP 1989121654U JP 12165489 U JP12165489 U JP 12165489U JP H0724717 Y2 JPH0724717 Y2 JP H0724717Y2
- Authority
- JP
- Japan
- Prior art keywords
- bolt
- oil
- pipe member
- oil passage
- shaft portion
- 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 - Lifetime
Links
Landscapes
- Branch Pipes, Bends, And The Like (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、例えば車両用パワーステアリング装置のオイ
ルポンプに用いるオイルボルトに関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an oil bolt used for an oil pump of a vehicle power steering device, for example.
（従来の技術） 従来、この種のオイルボルトとして、実開昭62-126692
号公報により、ボルト軸部の軸線方向に長手でボルト頭
部側の端部を閉塞した油路を備えると共に、該軸部に該
油路に連通する径方向の連通孔を形成し、該油路にオリ
フィス形成部材を設けて成るものは知られ、このもので
は、該オリフィス形成部材を、該油路の内径より小径な
ピン部材で構成し、これを該油路に挿入し、該軸部の端
部をかしめて該ピン部材を抜け止めするようにしてい
る。(Prior Art) Conventionally, as an oil bolt of this type, a full-fledged Sho 62-126692
According to the publication, an oil passage is provided that is long in the axial direction of the bolt shaft portion and closes the end portion on the bolt head side, and a radial communication hole that communicates with the oil passage is formed in the shaft portion. It is known that an orifice forming member is provided in the passage, and in this one, the orifice forming member is constituted by a pin member having a diameter smaller than the inner diameter of the oil passage, and this is inserted into the oil passage, and the shaft portion is inserted. The end of the pin is caulked to prevent the pin member from coming off.
（考案が解決しようとする課題） 上記の如く、油路にピン部材を挿入し、ボルト軸部の端
部をかしめて該ピン部材を抜け止めするのでは、かしめ
作業が面倒で生産性が低下する問題がある。(Problems to be solved by the invention) As described above, if the pin member is inserted into the oil passage and the end portion of the bolt shaft portion is swaged to prevent the pin member from coming off, caulking work is troublesome and productivity is reduced. I have a problem to do.
本考案は、かかる問題点に鑑みてなされたものであり、
その目的とするところは製作が簡単なオイルボルトを提
供することにある。The present invention has been made in view of such problems,
The purpose is to provide an oil bolt that is easy to manufacture.
（課題を解決するための手段） 上記目的を達成すべく、本考案では、ボルト軸部の軸線
方向に長手でボルト頭部側の端部を閉塞した油路を備え
るオイルボルトであって、該軸部に該油路に連通する径
方向の連通孔を形成すると共に、該油路にオリフィス形
成部材を設けて成るものにおいて、ボルト軸部に形成し
た軸線方向の孔に一端部を挿入した、該軸部から軸線方
向に突出する真直なパイプ部材を設け、該パイプ部材の
内周の孔で該油路を構成すると共に、該オリフィス形成
部材を、該パイプ部材の内径より小径で且つ該パイプ部
材に挿入したとき該パイプ部材の内周面に部分的に弾接
するように湾曲させた弾性を有する線材で構成した。(Means for Solving the Problem) In order to achieve the above object, the present invention provides an oil bolt including an oil passage having a longitudinal end in the axial direction of the bolt shaft portion and an end portion on the bolt head side closed. In a structure in which a radial communication hole communicating with the oil passage is formed in the shaft portion and an orifice forming member is provided in the oil passage, one end is inserted into the axial hole formed in the bolt shaft portion, A straight pipe member that projects in the axial direction from the shaft portion is provided, the oil passage is formed by a hole in the inner periphery of the pipe member, and the orifice forming member has a diameter smaller than the inner diameter of the pipe member. It is composed of a wire rod which is elastic so as to partially elastically contact the inner peripheral surface of the pipe member when inserted into the member.
（作用） パイプ部材で油路の長さを確保でき、ボルトの軸部を長
くしてこれに油路を形成する場合に比し加工が容易にな
ると共に油路の寸法精度も向上する。(Operation) The length of the oil passage can be secured by the pipe member, the machining is easier and the dimensional accuracy of the oil passage is improved as compared to the case where the shaft portion of the bolt is elongated to form the oil passage.
パイプ部材はオイルボルトのねじ込みに支障を生じない
ように真直するが、線材をパイプ部材に挿入すればパイ
プ部材の内周面への弾接による摩擦力で線材がパイプ部
材に保持され、パイプ部材が真直であっても線材はパイ
プ部材に対し抜け止めされる。The pipe member is straightened so as not to hinder the screwing of the oil bolt, but if the wire member is inserted into the pipe member, the wire member is held by the pipe member due to the frictional force due to the elastic contact with the inner peripheral surface of the pipe member. Even if the wire is straight, the wire is prevented from coming off the pipe member.
（実施例） 図面で（１）は車両用パワーステアリング装置用のオイ
ルポンプ、（２）はオイルボルトを示し、該ポンプ
（１）はケーシング（1a）内に流入ポート（3a）と吐出
ポート（3b）とを形成したシリンダ（３）が内蔵されて
おり、該ケーシング（1a）に軸支させた偏心軸（４）に
ベアリング（５）を外嵌すると共に、該シリンダ（３）
に挿入したプランジャ（６）をばね（７）で付勢して該
ベアリング（５）のアウタレース（5a）の外周に圧接さ
せ、さらに該シリンダ（３）にチェック弁（８）を組付
けて該ポンプ（１）をプランジャ型に構成した。(Embodiment) In the drawings, (1) shows an oil pump for a vehicle power steering device, (2) shows an oil bolt, and the pump (1) has an inflow port (3a) and a discharge port (in the casing (1a). And a bearing (5) is externally fitted to an eccentric shaft (4) pivotally supported by the casing (1a) and the cylinder (3) is formed.
The plunger (6) inserted in the above is urged by a spring (7) so as to be pressed against the outer circumference (5a) of the bearing (5), and a check valve (8) is attached to the cylinder (3). The pump (1) was of plunger type.
また、前記オイルボルト（２）にはボルト軸部（2a）の
軸線方向に長手でボルト頭部（2b）側の端部を閉塞した
油路（９）と、該軸部（2a）に形成した該油路（９）に
連通する径方向の連通孔（10）とが設けられており、前
記ケーシング（1a）の座面（11）にボルト挿着孔（12）
を前記吐出ポート（3b）に連通するように穿設し、パワ
ーステアリング装置のアクチェータ（13）に接続される
油圧配管（14）の端部のジョイント（15）を該座面（1
1）に該オイルボルト（２）を介して締付け固定し、該
吐出ポート（3b）に該油圧配管（14）を前記油路（９）
と連通孔（10）とジョイント（15）とを介して連通し得
るようにした。そして、前記油路（９）にオリフィス形
成部材を設け、圧油の吐出脈動を緩和し得るようにし
た。Further, the oil bolt (2) has an oil passage (9) which is long in the axial direction of the bolt shaft portion (2a) and closes the end portion on the bolt head (2b) side, and is formed in the shaft portion (2a). A radial communication hole (10) communicating with the oil passage (9), and a bolt insertion hole (12) is formed in the seat surface (11) of the casing (1a).
Is provided so as to communicate with the discharge port (3b), and the joint (15) at the end of the hydraulic pipe (14) connected to the actuator (13) of the power steering device is connected to the seat surface (1).
1) via the oil bolt (2), and the discharge port (3b) with the hydraulic pipe (14) connected to the oil passage (9).
And the communication hole (10) and the joint (15). An orifice forming member is provided in the oil passage (9) so that the discharge pulsation of the pressure oil can be alleviated.
実施例で該オリフィス形成部材は前記油路（９）の内径
より小径な弾性を有する線材たるピアノ線（16）で構成
され、該ピアノ線（16）をアーチ状に湾曲させ、該ピア
ノ線（16）を該油路（９）に挿入したときその内周面に
該ピアノ線（16）が部分的に弾接するようにした。In the embodiment, the orifice forming member is composed of a piano wire (16) which is a wire material having elasticity smaller than the inner diameter of the oil passage (9), and the piano wire (16) is curved in an arch shape, When 16) was inserted into the oil passage (9), the piano wire (16) was partially elastically contacted with the inner peripheral surface thereof.
また、前記油路（９）は一般にはボルト軸部（2a）に穿
設するドリル孔で構成されるが、ドリル孔は内径精度が
左程高くなく、ピアノ線（16）を挿入してもオイルボル
ト（２）の絞り度のばらつきを生じ易い。Further, the oil passage (9) is generally composed of a drill hole drilled in the bolt shaft portion (2a), but the drill hole is not so high in inner diameter accuracy that the piano wire (16) is inserted. Variations in the degree of reduction of the oil bolt (2) are likely to occur.
そこで、実施例では、ボルト軸部（2a）に段付形状のド
リル孔（17）を形成し、該ドリル孔に市販のパイプ部材
（18）を圧入し、該パイプ部材（18）の孔を前記油路
（９）に構成した。これによれば、市販のパイプは比較
的内径の精度が高くなっており、上記の如く油路（９）
をパイプ部材（18）の孔で構成することで、外径精度が
高いピアノ線（16）を用いることと相俟ってオイルボル
ト（２）の絞り度のばらつきを阻止でき有利である。Therefore, in the embodiment, a stepped drill hole (17) is formed in the bolt shaft portion (2a), a commercially available pipe member (18) is press-fit into the drill hole, and the hole of the pipe member (18) is formed. It was constructed in the oil passage (9). According to this, the accuracy of the inner diameter of the commercially available pipe is relatively high, and as described above, the oil passage (9)
It is advantageous to form the pipe member (18) by the hole because it is possible to prevent the oil bolt (2) from being unevenly drawn in combination with the use of the piano wire (16) having a high outer diameter accuracy.
さらに、実施例ではパイプ部材（18）をボルト軸部（2
a）より長さを長くして油路（９）を長くすると共に、
該パイプ部材（18）より長さを長くしたピアノ線（16）
を該油路（９）に挿入し、絞り度を高めるようにした。Further, in the embodiment, the pipe member (18) is attached to the bolt shank (2
a) longer than the a) to lengthen the oil passage (9),
Piano wire (16) longer than the pipe member (18)
Was inserted into the oil passage (9) to increase the degree of restriction.
この場合、オイルボルト（２）のねじ込みに支障を生じ
ないようにパイプ部材（18）は真直に形成するが、ピア
ノ線（16）はパイプ部材（18）の内周面への弾接による
摩擦力でパイプ部材（18）に確実に保持される。In this case, the pipe member (18) is formed straight so as not to hinder the screwing of the oil bolt (2), but the piano wire (16) has friction due to elastic contact with the inner peripheral surface of the pipe member (18). It is securely held by the pipe member (18) by force.
オイルボルト（２）の絞り度を変更する場合太さの異な
るピアノ線（16）を用いても良いが、パイプ部材（18）
やピアノ線（16）の長さを変えても良く、パイプ部材
（18）やピアノ線（16）の長さを変える方が簡単に対応
でき有利である。When changing the drawing degree of the oil bolt (2), a piano wire (16) having a different thickness may be used, but a pipe member (18)
The length of the piano wire (16) may be changed, and changing the lengths of the pipe member (18) and the piano wire (16) is easier and more advantageous.
また、実施例ではドリル孔（17）にパイプ部材（18）を
圧入により固定したが、ろう付けや接着剤で固定するよ
うにしても良く、またピアノ線（16）をアーチ状に湾曲
したがこれに限るものでなく、ピアノ線（16）を波形形
状に折り曲ても良い。Further, although the pipe member (18) is fixed to the drill hole (17) by press fitting in the embodiment, it may be fixed by brazing or an adhesive, and the piano wire (16) is curved in an arch shape. The present invention is not limited to this, and the piano wire (16) may be bent into a wavy shape.
図面で（19）はアキュムレータ、（20）はボルト挿入孔
（12）に装着したオイルフィルターを示す。In the drawing, (19) shows an accumulator, and (20) shows an oil filter installed in the bolt insertion hole (12).
（考案の効果） 以上の説明から明らかなように、本考案によれば、油路
をパイプ部材で形成するため、ボルト軸部の加工が容易
になると共に油路の寸法精度が向上し、更に、パイプ部
材はオイルボルトのねじ込みに支障を生じないように真
直にするが、かかる真直なパイプ部材にもオリフィス形
成部材たる線材をかしめ等の面倒な加工を施さずに抜け
止めして保持させることができ、オイルボルトの生産性
を向上してコストダウンを図れる。(Effect of the Invention) As is apparent from the above description, according to the present invention, since the oil passage is formed by the pipe member, the bolt shaft portion can be easily processed and the dimensional accuracy of the oil passage is improved. , The pipe member should be straight so that it does not hinder the screwing of the oil bolt, but the straight pipe member should also be retained by retaining the wire forming the orifice forming member without tedious machining such as caulking. Therefore, the productivity of the oil bolt can be improved and the cost can be reduced.
第１図は本考案オイルボルトを具備するオイルポンプの
截断面図、第２図はオイルボルトの拡大截断面図であ
る。 （２）……オイルボルト、（2a）……ボルト軸部 （2b）……ボルト頭部、（９）……油路 （10）……連通孔、（16）……ピアノ線（線材）FIG. 1 is a cross-sectional view of an oil pump equipped with the oil bolt of the present invention, and FIG. 2 is an enlarged cross-sectional view of the oil bolt. (2) …… Oil bolt, (2a) …… Bolt shank (2b) …… Bolt head, (9) …… Oil passage (10) …… Communication hole, (16) …… Piano wire (wire)
Claims (1)
側の端部を閉塞した油路を備えるオイルボルトであっ
て、該軸部に該油路に連通する径方向の連通孔を形成す
ると共に、該油路にオリフィス形成部材を設けて成るも
のにおいて、ボルト軸部に形成した軸線方向の孔に一端
部を挿入した、該軸部から軸線方向に突出する真直なパ
イプ部材を設け、該パイプ部材の内周の孔で該油路を構
成すると共に、該オリフィス形成部材を、該パイプ部材
の内径より小径で且つ該パイプ部材に挿入したとき該パ
イプ部材の内周面に部分的に弾接するように湾曲させた
弾性を有する線材で構成したことを特徴とするオイルボ
ルト。1. An oil bolt having an oil passage which is long in the axial direction of the bolt shaft portion and closes the end portion on the bolt head side, wherein a radial communication hole communicating with the oil passage is provided in the shaft portion. A straight pipe member protruding from the shaft portion in the axial direction is formed by inserting an end portion into an axial hole formed in the bolt shaft portion and forming an orifice forming member in the oil passage. A part of the inner peripheral surface of the pipe member when the orifice forming member has a diameter smaller than the inner diameter of the pipe member and is inserted into the pipe member, while forming the oil passage with an inner peripheral hole of the pipe member. An oil bolt, which is composed of a wire material having elasticity that is curved so as to elastically contact with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989121654U JPH0724717Y2 (en) | 1989-10-19 | 1989-10-19 | Oil bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989121654U JPH0724717Y2 (en) | 1989-10-19 | 1989-10-19 | Oil bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0360687U JPH0360687U (en) | 1991-06-14 |
| JPH0724717Y2 true JPH0724717Y2 (en) | 1995-06-05 |
Family
ID=31669685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989121654U Expired - Lifetime JPH0724717Y2 (en) | 1989-10-19 | 1989-10-19 | Oil bolt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0724717Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4823718B2 (en) * | 2006-03-02 | 2011-11-24 | 新日本製鐵株式会社 | Hot forming mold, press forming apparatus, and hot press forming method |
| JP2009125336A (en) * | 2007-11-26 | 2009-06-11 | Takeshi Kato | Joint tool for suction hose |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5444264U (en) * | 1977-09-03 | 1979-03-27 | ||
| JPS62126690U (en) * | 1986-02-03 | 1987-08-11 |
-
1989
- 1989-10-19 JP JP1989121654U patent/JPH0724717Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0360687U (en) | 1991-06-14 |
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