JPH0590035U - Hollow shaft end blocking member - Google Patents
Hollow shaft end blocking memberInfo
- Publication number
- JPH0590035U JPH0590035U JP42392U JP42392U JPH0590035U JP H0590035 U JPH0590035 U JP H0590035U JP 42392 U JP42392 U JP 42392U JP 42392 U JP42392 U JP 42392U JP H0590035 U JPH0590035 U JP H0590035U
- Authority
- JP
- Japan
- Prior art keywords
- hollow shaft
- press
- fitting
- closing member
- fitting 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.)
- Pending
Links
Landscapes
- Pressure Vessels And Lids Thereof (AREA)
Abstract
(57)【要約】
【目的】 圧入固定部とフランジ部との間に周溝を設け
なくてもよく、もって、当該部分の応力集中を軽減して
強度を向上させることができる端部閉塞部材を提供する
ことを目的とする。
【構成】 中空シャフト１０の端部に圧入されて中空シ
ャフト１０を閉塞する嵌合部１２と、この嵌合部１２の
一端に連設されたフランジ部１３とを備えた中空シャフ
トの端部閉塞部材１１であって、前記嵌合部１２には、
前記中空シャフトの内径よりも大きな外径を有しかつ外
周面に沿って少なくとも１周の突条１５が形成された圧
入固定部が形成されていることを特徴とする。
(57) [Abstract] [Purpose] It is not necessary to provide a circumferential groove between the press-fitting fixing portion and the flange portion, so that stress concentration at the portion can be reduced and strength can be improved. The purpose is to provide. A hollow shaft end closure including a fitting portion 12 that is press-fitted into the end portion of the hollow shaft 10 to close the hollow shaft 10 and a flange portion 13 that is continuously provided at one end of the fitting portion 12. The member 11 and the fitting portion 12 includes:
A press-fitting and fixing portion having an outer diameter larger than the inner diameter of the hollow shaft and having at least one ridge 15 formed along the outer peripheral surface is formed.
Description
【０００１】[0001]
本考案は、中空シャフトの端部に圧入されて端部を閉塞する中空シャフトの端 部閉塞部材（以下、単に端部閉塞部材という。）に関する。 The present invention relates to an end closing member of a hollow shaft (hereinafter, simply referred to as an end closing member) that is press-fitted into the end of the hollow shaft to close the end.
【０００２】[0002]
従来、図８に示すように、中空シャフト１の端面に端部閉塞部材５を圧入して 固定してカムシャフトやカウンタシャフトを構成したものがある。この端部閉塞 部材５は、図６及び図７に示すように、セレーション形状の軸線方向に延びる凹 凸７が形成され、外径が前記中空シャフト１の内径よりも大きな圧入固定部６と 、この圧入固定部６の圧入方向と反対側の端部に連設されたフランジ部８とを備 えている。また、圧入固定部６とフランジ部８との間には、前記凹凸７を転造等 により加工する際の逃げ部となる周溝９が形成されている。 Conventionally, as shown in FIG. 8, there is a cam shaft or a counter shaft in which an end blocking member 5 is press-fitted and fixed to an end surface of a hollow shaft 1. As shown in FIGS. 6 and 7, the end block member 5 is formed with a serration-shaped concave projection 7 extending in the axial direction, and has a press-fitting fixing portion 6 having an outer diameter larger than the inner diameter of the hollow shaft 1, The press-fitting fixing portion 6 is provided with a flange portion 8 continuously provided at an end portion on the opposite side to the press-fitting direction. Further, between the press-fitting fixing portion 6 and the flange portion 8, a circumferential groove 9 is formed which serves as a relief portion when the unevenness 7 is processed by rolling or the like.
【０００３】[0003]
上述した従来の端部閉塞部材５では、それに周溝９が形成されているので、例 えば、端部閉塞部材５にギヤを連結して中空シャフト１を回転駆動した場合には 、周溝９が応力集中を起こす切欠となって強度が低下するといった問題がある。 Since the peripheral groove 9 is formed in the above-mentioned conventional end closing member 5, for example, when the hollow shaft 1 is rotationally driven by connecting a gear to the end closing member 5, the peripheral groove 9 is formed. Is a notch that causes stress concentration, and there is a problem that the strength is reduced.
【０００４】 本考案は、上記事情に鑑みてなされたもので、圧入固定部とフランジ部との間 に周溝を設けなくてもよく、もって、当該部分の応力集中を軽減して強度を向上 させることができる端部閉塞部材を提供することを目的とする。The present invention has been made in view of the above circumstances, and it is not necessary to provide a circumferential groove between the press-fitting fixing portion and the flange portion, thereby reducing stress concentration in the portion and improving strength. It is an object of the present invention to provide an end closing member that can be made to operate.
【０００５】[0005]
本考案の端部閉塞部材によれば、中空シャフトの端部に圧入されて中空シャフ トを閉塞する嵌合部と、この嵌合部の一端に連設されたフランジ部とを備えた中 空シャフトの端部閉塞部材であって、前記嵌合部には、前記中空シャフトの内径 よりも大きな外径を有しかつ外周面に沿って少なくとも１周の突条が形成された 圧入固定部が形成されていることを特徴とする。 According to the end closing member of the present invention, the hollow portion includes the fitting portion that is press-fitted into the end portion of the hollow shaft to close the hollow shaft, and the flange portion that is connected to one end of the fitting portion. An end closing member of a shaft, wherein the fitting portion includes a press-fitting fixing portion having an outer diameter larger than an inner diameter of the hollow shaft and having at least one ridge formed along an outer peripheral surface thereof. It is characterized by being formed.
【０００６】[0006]
本考案の端部閉塞部材によれば、中空シャフトに端部閉塞部材を圧入すると、 圧入固定部の突条が中空シャフトに押圧され、端部閉塞部材と中空シャフトとが 強固に固定される。 According to the end closing member of the present invention, when the end closing member is press-fitted into the hollow shaft, the protrusion of the press-fitting fixing portion is pressed against the hollow shaft, and the end closing member and the hollow shaft are firmly fixed.
【０００７】 このように、本考案では、端部閉塞部材を中空シャフトに突条を介して固定す るようにしているので、従来のように端部閉塞部材にセレーション形状の凹凸を 形成しなくてもよくなり、したがって、フランジ部と圧入固定部との間に加工上 の逃げとなる周溝を形成する必要がなくなり、当該部分の応力集中を低減でき強 度が向上する。As described above, according to the present invention, since the end block member is fixed to the hollow shaft through the ridge, the end block member does not have serration-shaped unevenness unlike the conventional case. Therefore, it is not necessary to form a circumferential groove between the flange portion and the press-fitting and fixing portion, which serves as a relief during processing, and the stress concentration at that portion can be reduced and the strength is improved.
【０００８】[0008]
以下に図面を参照して本考案の実施例の端部閉塞部材について説明する。 Hereinafter, an end closing member according to an embodiment of the present invention will be described with reference to the drawings.
【０００９】 本実施例の端部閉塞部材１１は、図３に示すように、中空シャフト１０の端部 に圧入してなる。中空シャフト１０には、軸方向の所定位置に図示しないカム及 びジャーナルが取り付けられている。As shown in FIG. 3, the end portion closing member 11 of this embodiment is press-fitted into the end portion of the hollow shaft 10. A cam and a journal (not shown) are attached to the hollow shaft 10 at predetermined axial positions.
【００１０】 前記端部閉塞部材１１は、前記中空シャフト１０の内径とほぼ同一の外径を有 する嵌合部１２と、この嵌合部１２の圧入方向と反対側端部に形成されたフラン ジ部１３とを備えている。この嵌合部１２の外周面には、転造加工により１周分 の溝１４が形成されており、溝１４に隣接して周方向に延びる２本の突条１５が 形成されている。この突条１５の形成により突条１５の外径は、前記中空シャフ ト１０の内径よりも大きな外径を有しており、突条１５が形成された嵌合部１２ の一部分は本考案の圧入固定部を構成する。なお、嵌合部１２の圧入側方向先端 側は、端部閉塞部材１１の圧入時に嵌合部１２を中空シャフト１に同軸に案内す る案内部として機能する。The end portion closing member 11 has a fitting portion 12 having an outer diameter substantially the same as the inner diameter of the hollow shaft 10, and a flange formed at the end portion of the fitting portion 12 opposite to the press-fitting direction. It is provided with the J section 13. On the outer peripheral surface of the fitting portion 12, a groove 14 for one round is formed by rolling, and two protrusions 15 adjacent to the groove 14 and extending in the circumferential direction are formed. Due to the formation of the protrusion 15, the outer diameter of the protrusion 15 is larger than the inner diameter of the hollow shaft 10, and a part of the fitting portion 12 on which the protrusion 15 is formed is part of the present invention. It constitutes a press-fitting fixing part. The tip end side of the fitting portion 12 in the press-fitting side functions as a guide portion that guides the fitting portion 12 coaxially with the hollow shaft 1 when the end closing member 11 is press-fitted.
【００１１】 ここで、ちなみに前記中空シャフト１０の内径は１２ｍｍとなっており、嵌合 部１２の外径は、中空シャフト１０の内径よりも、０〜０．０５ｍｍの範囲内の 適宜の寸法だけ小さく形成されている。前記溝１４の開口幅は１．５ｍｍ、深さ は１ｍｍであり、溝１４に隣接して形成される突条１５の幅は１ｍｍ、突条１５ の頂上部の外径は１２．２ｍｍとなっている。嵌合部１２の圧入方向先端側に位 置する突条１５と、嵌合部１２の圧入方向先端側の端部との距離は、２〜２０ｍ ｍの範囲の適宜の寸法となっている。By the way, the inner diameter of the hollow shaft 10 is 12 mm, and the outer diameter of the fitting portion 12 is an appropriate size within the range of 0 to 0.05 mm from the inner diameter of the hollow shaft 10. It is formed small. The groove 14 has an opening width of 1.5 mm and a depth of 1 mm, the ridge 15 formed adjacent to the groove 14 has a width of 1 mm, and the outer diameter of the top of the ridge 15 is 12.2 mm. ing. The distance between the protrusion 15 located on the tip side in the press-fitting direction of the fitting portion 12 and the end portion on the tip side in the press-fitting direction of the fitting portion 12 has an appropriate dimension in the range of 2 to 20 mm.
【００１２】 前記中空シャフト１０の端部の内周縁にはＣ面取り１６が形成されており、フ ランジ部１３と嵌合部１２との境界部と、中空シャフト１０との干渉を避けてい る。A C chamfer 16 is formed on the inner peripheral edge of the end portion of the hollow shaft 10 to avoid interference between the hollow shaft 10 and the boundary portion between the flange portion 13 and the fitting portion 12.
【００１３】 次に、本実施例の端部閉塞部材１１の作用について説明する。Next, the operation of the end portion closing member 11 of this embodiment will be described.
【００１４】 中空シャフト１０に端部閉塞部材１１を圧入すると、まず、嵌合部１２の圧入 方向先端側が中空シャフト１０の内面が嵌合し、嵌合部１２が中空シャフト１０ に同軸に案内されて圧入される。次に、嵌合部１２に形成した突条１５が中空シ ャフト１０の内面に嵌合し、該突条１５がそれ自身が変形しつつ中空シャフト１ ０に圧入される。さらに、端部閉塞部材１１を圧入すると、中空シャフト１０の 端部とフランジ部１３とが当接して圧入が終了する。When the end portion closing member 11 is press-fitted into the hollow shaft 10, first, the inner surface of the hollow shaft 10 is fitted at the tip end side of the fitting portion 12 in the press-fitting direction, and the fitting portion 12 is guided coaxially to the hollow shaft 10. Is pressed in. Next, the projection 15 formed on the fitting portion 12 is fitted to the inner surface of the hollow shaft 10, and the projection 15 is pressed into the hollow shaft 10 while deforming itself. Further, when the end portion closing member 11 is press-fitted, the end portion of the hollow shaft 10 and the flange portion 13 come into contact with each other to complete the press-fitting.
【００１５】 このように、本実施例によれば、嵌合部１２に転造加工により溝１４を形成し て突条１５を形成するようにしているので、従来のように嵌合部１２とフランジ 部１３との境界部に周溝を設ける必要がなくなり、端部閉塞部材１１の強度が低 下することを防止できる。As described above, according to this embodiment, since the groove 14 is formed in the fitting portion 12 by the rolling process to form the ridge 15, the fitting portion 12 and the fitting portion 12 are formed as in the conventional case. Since it is not necessary to provide a circumferential groove at the boundary with the flange portion 13, it is possible to prevent the strength of the end block member 11 from being lowered.
【００１６】 嵌合部１２の外径を中空シャフト１０の内径とほぼ同一の外径としてあるので 、嵌合部１２を圧入した際に、端部閉塞部材１１の軸線が中空シャフト１０の軸 線と一致するように案内され、普通のプレス装置によって端部閉塞部材１１を中 空シャフト１０に嵌合しても、端部閉塞部材１１が中空シャフト１０の軸線に対 して傾くことを抑制することができ、端部閉塞部材１１の中空シャフト１０に対 する取付精度を向上させることができる。Since the outer diameter of the fitting portion 12 is substantially the same as the inner diameter of the hollow shaft 10, when the fitting portion 12 is press-fitted, the axis line of the end block member 11 is the axis line of the hollow shaft 10. Even if the end closing member 11 is fitted to the hollow shaft 10 by a normal press device, the end closing member 11 is prevented from tilting with respect to the axis of the hollow shaft 10. It is possible to improve the mounting accuracy of the end blocking member 11 to the hollow shaft 10.
【００１７】 また、本実施例では、嵌合部１２の外周に少なくとも１周分の溝１４を形成し て少なくとも１周分の突条１５を形成し、嵌合部１２を中空シャフト１０の内面 に圧入して前記突条１５を中空シャフト１０の内面に密着するようにしているの で、この突条１５により中空シャフト１０の内部と外部とが閉塞される。したが って、中空シャフト１０内に潤滑油を導入してカムやジャーナルを潤滑するよう にした場合に、中空シャフト１０の端部から潤滑油が漏れることがなく、カムや ジャーナルに所定量の潤滑油を供給でき、潤滑の制御がしやすくなる。Further, in the present embodiment, at least one groove 14 is formed on the outer periphery of the fitting portion 12 to form the protrusion 15 for at least one rotation, and the fitting portion 12 is formed on the inner surface of the hollow shaft 10. Since the protrusion 15 is press-fitted into the hollow shaft 10 so as to be in close contact with the inner surface of the hollow shaft 10, the protrusion 15 closes the inside and outside of the hollow shaft 10. Therefore, when lubricating oil is introduced into the hollow shaft 10 to lubricate the cam and journal, the lubricating oil does not leak from the end of the hollow shaft 10 and a predetermined amount of the lubricating oil does not leak to the cam and journal. Lubricating oil can be supplied, making it easier to control lubrication.
【００１８】 図４に本考案の他の実施例の端部閉塞部材２１について説明する。このものは 、嵌合部１２の外周面に複数（図では３個）の溝１４を形成し、これらの溝１４ に隣接して複数（図では４個）の突条１５を形成して圧入固定部を構成したもの である。このものでも、上述した実施例と同様な効果を有するとともに、複数の 突条１５が中空シャフト１０の内面に嵌合するので、中空シャフト１０の内外の シール性能を更に高めることができる。FIG. 4 illustrates an end closing member 21 according to another embodiment of the present invention. In this case, a plurality (three in the figure) of grooves 14 are formed on the outer peripheral surface of the fitting portion 12, and a plurality of (four in the figure) ridges 15 are formed adjacent to these grooves 14 and press-fitted. This is what constitutes the fixed part. This one also has the same effect as that of the above-described embodiment, and since the plurality of protrusions 15 are fitted to the inner surface of the hollow shaft 10, the sealing performance inside and outside the hollow shaft 10 can be further enhanced.
【００１９】 図５に本考案の更に他の実施例の端部閉塞部材３１について説明する。このも のは、嵌合部１２の外周面にネジ状に溝１４を形成し、溝１４に隣接してネジ状 の突条１５を形成して圧入固定部を構成したものである。このものでも、上述し た各実施例と同様な効果を有するとともに、端部閉塞部材３１に突条１５の捩じ れ方向にトルクが作用しても、端部閉塞部材３１が中空シャフト１０に対して緩 むことが防止できる。FIG. 5 illustrates an end closing member 31 according to still another embodiment of the present invention. This is one in which a groove 14 is formed in a screw shape on the outer peripheral surface of the fitting portion 12, and a screw-shaped ridge 15 is formed adjacent to the groove 14 to form a press-fitting and fixing portion. This one also has the same effects as those of the above-described embodiments, and even if a torque acts on the end closing member 31 in the twisting direction of the ridge 15, the end closing member 31 is attached to the hollow shaft 10. It can be prevented from loosening.
【００２０】[0020]
以上説明したように、本考案の端部閉塞部材によれば、中空シャフトの端部に 圧入されて中空シャフトを閉塞する嵌合部と、この嵌合部の一端に連設されたフ ランジ部とを備えた中空シャフトの端部閉塞部材であって、前記嵌合部には、前 記中空シャフトの内径よりも大きな外径を有しかつ外周面に沿って少なくとも１ 周の突条が形成された圧入固定部が形成されているので、前記突条を形成すれば セレーション加工がいらず、したがって、圧入固定部とフランジ部との間に周溝 を設けなくてもよくなり、もって、当該部分の応力集中を軽減して強度を向上さ せることができる。 As described above, according to the end portion closing member of the present invention, the fitting portion that is press-fitted into the end portion of the hollow shaft to close the hollow shaft and the flange portion that is continuously provided at one end of the fitting portion. An end-closing member for a hollow shaft, comprising: an engaging member having an outer diameter larger than the inner diameter of the hollow shaft and having at least one ridge formed along an outer peripheral surface thereof. Since the press-fitted fixing portion is formed, the serration process is not required if the ridge is formed, and therefore, it is not necessary to provide a circumferential groove between the press-fitting fixing portion and the flange portion. It is possible to improve the strength by reducing the stress concentration in the part.
【図１】本考案の端部閉塞部材を示す側面図である。FIG. 1 is a side view showing an end closing member of the present invention.
【図２】図１のイ矢視図である。FIG. 2 is a view on arrow A in FIG.
【図３】図１の端部閉塞部材を中空シャフトに圧入した
状態を示す断面図である。FIG. 3 is a cross-sectional view showing a state in which the end block member of FIG. 1 is press-fitted into a hollow shaft.
【図４】本考案の他の実施例の端部閉塞部材を示す側面
図である。FIG. 4 is a side view showing an end closing member according to another embodiment of the present invention.
【図５】本考案の更に他の実施例の端部閉塞部材を示す
側面図である。FIG. 5 is a side view showing an end closing member according to still another embodiment of the present invention.
【図６】従来の端部閉塞部材を示す側面図である。FIG. 6 is a side view showing a conventional end block member.
【図７】図６のロ矢視図である。FIG. 7 is a view on arrow B of FIG.
【図８】図６の端部閉塞部材を中空シャフトに圧入した
状態を示す断面図である。8 is a cross-sectional view showing a state in which the end block member of FIG. 6 is press-fitted into a hollow shaft.
１１，２１，３１ 端部閉塞部材 １２ 嵌合部 １３ フランジ部 １４ 溝 １５ 突条 11, 21, 31 End closing member 12 Fitting portion 13 Flange portion 14 Groove 15 Protrusion
Claims (1)
ャフトを閉塞する嵌合部と、この嵌合部の一端に連設さ
れたフランジ部とを備えた中空シャフトの端部閉塞部材
であって、前記嵌合部には、前記中空シャフトの内径よ
りも大きな外径を有しかつ外周面に沿って少なくとも１
周の突条が形成された圧入固定部が形成されていること
を特徴とする中空シャフトの端部閉塞部材。1. An end closing member for a hollow shaft, comprising: a fitting portion press-fitted into the end portion of the hollow shaft to close the hollow shaft; and a flange portion continuous with one end of the fitting portion. The fitting portion has an outer diameter larger than the inner diameter of the hollow shaft and has at least 1 along the outer peripheral surface.
An end closing member for a hollow shaft, characterized in that a press-fitting and fixing portion having a circumferential projection is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP42392U JPH0590035U (en) | 1992-01-09 | 1992-01-09 | Hollow shaft end blocking member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP42392U JPH0590035U (en) | 1992-01-09 | 1992-01-09 | Hollow shaft end blocking member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0590035U true JPH0590035U (en) | 1993-12-07 |
Family
ID=11473399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP42392U Pending JPH0590035U (en) | 1992-01-09 | 1992-01-09 | Hollow shaft end blocking member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0590035U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5515473A (en) * | 1978-07-14 | 1980-02-02 | Johnson & Johnson | Composition for mouth sterilization |
-
1992
- 1992-01-09 JP JP42392U patent/JPH0590035U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5515473A (en) * | 1978-07-14 | 1980-02-02 | Johnson & Johnson | Composition for mouth sterilization |
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