JPH0714237U - Spring fall prevention structure - Google Patents
Spring fall prevention structureInfo
- Publication number
- JPH0714237U JPH0714237U JP4547993U JP4547993U JPH0714237U JP H0714237 U JPH0714237 U JP H0714237U JP 4547993 U JP4547993 U JP 4547993U JP 4547993 U JP4547993 U JP 4547993U JP H0714237 U JPH0714237 U JP H0714237U
- Authority
- JP
- Japan
- Prior art keywords
- spring
- bent
- diameter end
- winding
- diameter
- 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.)
- Granted
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- Fluid-Damping Devices (AREA)
Abstract
(57)【要約】
【目的】 スプリングの組付け性を向上し、脱落を防止
する。
【構成】 スプリング１３の一端部側座巻き部を大径の
座巻き部１３ａとして、この大径の座巻き部１３ａの先
端を内方に折り曲げて折曲部１３ｂとなし、この折曲部
１３ｂを前段の巻き部１３ｃに引っ掛け、他端部側座巻
き部を小径の座巻き部１３ｄとして、この小径の座巻き
部１３ｄの先端を外方に折り曲げて折曲部１３ｅとな
し、この折曲部１３ｅを前段の巻き部１３ｆに引っ掛け
ている。
(57) [Summary] [Purpose] To improve the assemblability of the spring and prevent it from falling off. [Structure] The one end side coiled portion of the spring 13 is formed as a large diameter coiled portion 13a, and the tip of this large diameter coiled portion 13a is bent inward to form a bent portion 13b. Is hooked on the former winding portion 13c, the other end side end winding portion is made into a small diameter end portion 13d, and the tip of this small diameter end portion 13d is bent outward to form a bent portion 13e. The part 13e is hooked on the former winding part 13f.
Description
【０００１】[0001]
本考案は船外機のパワーチルト・トリム装置等に用いるチルトシリンダユニッ ト等におけるスプリングの脱落防止構造に関する。 The present invention relates to a spring fall prevention structure for a tilt cylinder unit or the like used in a power tilt / trim device of an outboard motor.
【０００２】[0002]
例えば、モータボート等の小型船舶において用いられるチルトシリンダユニッ トとして、シリンダ内をロッド先端に固着したピストンによりシリンダユニット が伸長する際に膨張する第１室と圧縮する第２室とを画成し、ピストンにはこれ ら第１室と第２室とを連通する複数の油路を形成してそれぞれ逆止弁を介装し、 更にロッドの外周には複数の油路の一部を閉塞可能なオイルロックカラーを摺動 可能に嵌装し、このオイルロックカラーは第２室側端部であるロッドガイドとの 間にスプリングを介設してロッドの中間部付近に保持し、更に第２室側端部には 最大伸長時付近でオイルロックカラーが嵌合するオイルロックピースを設けたも のが提案されている。 For example, as a tilt cylinder unit used in a small boat such as a motor boat, a first chamber that expands when the cylinder unit expands by a piston fixed to the rod tip inside the cylinder and a second chamber that compresses is defined. , The piston has a plurality of oil passages that connect the first chamber and the second chamber to each other, and a check valve is provided in each piston. Further, a part of the oil passages can be closed on the outer circumference of the rod. A slidable oil lock collar is slidably fitted, and this oil lock collar is held between the rod guide, which is the end of the second chamber, and held near the middle of the rod. It has been proposed to provide an oil lock piece at the end on the chamber side with which the oil lock collar fits at the time of maximum expansion.
【０００３】 ところで、このようにロッドガイドにスプリングを介してオイルロックカラー を保持する場合、スプリングの座巻き部がロッドガイドやオイルロックカラーか ら脱落しないようにしなければならない。By the way, when the oil lock collar is held on the rod guide via the spring in this way, it is necessary to prevent the end turn portion of the spring from falling off the rod guide or the oil lock collar.
【０００４】 そこで、図８に示すようにロッドガイド１０１とオイルロックカラー１０２と の間に介設するスプリング１０３は、一端側を大径の座巻き部１０３ａとし、他 端側を小径の座巻き部１０３ｂとして、ロッドガイド１０１にはスプリング１０ ３の大径の座巻き部１０３ａがはまる溝１０１ａを形成し、オイルロックカラー １０２にはスプリング１０３の小径の座巻き部１０３ｂがはまる溝１０２ａを形 成することでスプリング１０３を抜けにくくし、更にこれでも引き荷重に対して は抜けやすくなるので、ロッドガイド１０１及びオイルロックカラー１０２にピ ン１０４，１０５を打込んでスプリング１０３の座巻き部を係止するようにして いる。Therefore, as shown in FIG. 8, the spring 103 interposed between the rod guide 101 and the oil lock collar 102 has a large-diameter end turn portion 103a at one end and a small-diameter end turn end at the other end. As the portion 103b, the rod guide 101 is formed with a groove 101a into which the large diameter end turn portion 103a of the spring 103 is fitted, and the oil lock collar 102 is formed into a groove 102a into which the small diameter end turn portion 103b of the spring 103 is fitted. By doing so, the spring 103 is hard to come off, and even with this, it is easy to come out against a pulling load. Therefore, the pins 104 and 105 are driven into the rod guide 101 and the oil lock collar 102 to engage the end winding portion of the spring 103. I'm trying to stop.
【０００５】 また、ピンを打込む代りに、図９に示すようにスプリング１０３の両座巻き部 １０３ａ，１０３ｂの先端１０３ｃ，１０３ｄをロッドガイド１０１及びオイル ロックカラー１０２に形成した孔１０１ｂ，１０２ｂに差込むようにしたものも ある。Further, instead of driving the pin, as shown in FIG. 9, the tip ends 103c and 103d of both end-winding portions 103a and 103b of the spring 103 are inserted into the holes 101b and 102b formed in the rod guide 101 and the oil lock collar 102, respectively. Some of them are designed to be inserted.
【０００６】[0006]
しかしながら、上述した図８に示すスプリングの脱落防止構造にあって、引き 荷重に対してもスプリングの脱落を防止できるが、ピンを打込むので部品点数が 増えるだけでなく、組付けも困難になる。また、図９に示すスプリングの脱落防 止構造にあって、引き荷重に対してもスプリングが脱落しにくくなるが、スプリ ング先端を孔内に差込まなければならないので、組付けが非常に困難になる。 However, in the structure for preventing the spring from falling out as shown in FIG. 8 described above, it is possible to prevent the spring from falling off even with a pulling load, but since the pin is driven, not only the number of parts increases but also the assembly becomes difficult. . Also, with the spring fall-out prevention structure shown in Fig. 9, the spring does not easily fall off even with a pulling load, but it is very difficult to assemble because the spring tip must be inserted into the hole. become.
【０００７】[0007]
上記課題を解決すべく本考案は、スプリングの大径の座巻き側先端を内方へ折 り曲げて折曲部となし、この折曲部を前段の巻き部分に引っ掛け、或いはスプリ ングの小径の座巻き側先端を外方へ折り曲げて折曲部となし、この折曲部を前段 の巻き部分に引っ掛けた。 In order to solve the above-mentioned problems, the present invention folds the end of the large diameter endwinding side of the spring inward to form a bent portion, and hooks this bent portion on the winding portion of the previous stage or a small diameter of the spring. The tip of the end winding side was bent outward to form a bent part, and this bent part was hooked on the winding part of the previous stage.
【０００８】[0008]
スプリングの大径の座巻き側先端を内方へ折り曲げて折曲部となし、この折曲 部を前段の巻き部分に引っ掛けているので、スプリングに引き荷重がかかってス プリングの径が縮もうとするときに、折曲部によって座巻き部が前段の巻き部分 に引っ掛かって縮めなくなり、また、スプリングの小径の座巻き側先端を外方へ 折り曲げて折曲部となし、この折曲部を前段の巻き部分に引っ掛けているので、 引き荷重がかかったときに座巻き部が前段の巻き部に引っ掛かる。 The end of the large-diameter end turn side of the spring is bent inward to form a bent part, and this bent part is hooked on the winding part of the previous stage, so pulling load is applied to the spring and the spring diameter is reduced. When this is done, the end turn part is caught by the bent part and does not shrink, and the tip of the spring with a small diameter on the end turn side is bent outward to form the bent part. Since it is hooked on the former winding part, the end winding part gets caught on the former winding part when a pulling load is applied.
【０００９】[0009]
【実施例】 以下に本考案の実施例を添付図面に基づいて説明する。ここで、図１は本考案 に係るスプリングの脱落防止構造を適用したシリンダユニットの断面図、図２乃 至図４はスプリングの大径の座巻き部の正面図、底面図及び斜視図、図５乃至図 ７はスプリングの小径の座巻き部の正面図、底面図及び斜視図である。Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, FIG. 1 is a cross-sectional view of a cylinder unit to which a spring fall-out prevention structure according to the present invention is applied, and FIGS. 2 to 4 are front view, bottom view and perspective view of a large-diameter end-winding portion of a spring. 5 to 7 are a front view, a bottom view and a perspective view of a small diameter end turn portion of a spring.
【００１０】 シリンダユニットは、一端部が閉塞されたシリンダ本体１内に他端開口部側か らオイルシール２及び第１部材であるロッドガイド３を介してロッド４を挿入し 、このロッド４先端にシリンダ本体１内周面に摺接するピストン５をピストンボ ルト６にて固着し、このピストン５によりシリンダユニットが伸長する際に膨張 する第１室Ｓ１と圧縮する第２室Ｓ２とを画成し、ピストン５には第１室Ｓ１と 第２室Ｓ２とを連通する複数の油路８…を形成し、これらの複数の油路８…にロ ッド状バルブシート９を配設し、このバルブシート９及びスプリング１０にてバ ルブ１１を閉方向に付勢している。In the cylinder unit, a rod 4 is inserted into the cylinder body 1 having one end closed from the other end opening side through an oil seal 2 and a rod guide 3 which is a first member, and the tip of the rod 4 is inserted. A piston 5 slidably contacting the inner peripheral surface of the cylinder body 1 is fixed by a piston bolt 6 to define a first chamber S1 that expands when the cylinder unit extends and a second chamber S2 that compresses. , A plurality of oil passages 8 that connect the first chamber S1 and the second chamber S2 to each other are formed in the piston 5, and a rod-shaped valve seat 9 is arranged in the plurality of oil passages 8 ... The valve seat 9 and the spring 10 urge the valve 11 in the closing direction.
【００１１】 ロッド４の外周部には第２部材１２を摺動可能に嵌装し、第１部材であるロッ ドガイド３との間にスプリング１３を介設してロッド４の所定の位置で保持して いる。そして、図２乃至図４に示すようにスプリング１３の一端部側座巻き部を 大径の座巻き部１３ａとして、この大径の座巻き部１３ａの先端を内方に折り曲 げて折曲部１３ｂとなし、この折曲部１３ｂを前段の巻き部１３ｃに引っ掛けて いる。このスプリング１３の大径の座巻き部１３ａはロッドガイド３に形成した 溝３ａ内にはめ込んでいる。A second member 12 is slidably fitted to the outer peripheral portion of the rod 4, and a spring 13 is interposed between the second member 12 and the rod guide 3, which is the first member, to hold the rod 4 at a predetermined position. is doing. Then, as shown in FIGS. 2 to 4, the one-end side end turn portion of the spring 13 is set as a large diameter end turn portion 13a, and the tip of the large end turn portion 13a is bent inwardly. The bent portion 13b is hooked on the front winding portion 13c. The large-diameter end turn portion 13a of the spring 13 is fitted in the groove 3a formed in the rod guide 3.
【００１２】 また、図５乃至図７に示すようにスプリング１３の他端部側座巻き部を小径の 座巻き部１３ｄとして、この小径の座巻き部１３ｄの先端を外方に折り曲げて折 曲部１３ｅとなし、この折曲部１３ｅを前段の巻き部１３ｆに引っ掛けている。 このスプリング１３の小径の座巻き部１３ｄは第２部材１２に形成した溝１２ａ 内にはめ込んでいる。Further, as shown in FIGS. 5 to 7, the other end side end turn portion of the spring 13 is used as a small diameter end turn portion 13d, and the tip of this small diameter end turn portion 13d is bent outwardly. The bent portion 13e is hooked on the front winding portion 13f. The small-diameter end turn portion 13d of the spring 13 is fitted in the groove 12a formed in the second member 12.
【００１３】 以上のように構成したので、スプリング１３に引き荷重がかかった場合、スプ リング１３の大径の座巻き部１３ａは折曲部１３ｂが前段の巻き部１３ｃに引っ 掛かって縮径方向に縮むことができなくなるので、ロッドガイド３の溝３ａない から外れることが防止される。また、スプリング１３の小径の座巻き部１３ｄは 折曲部１３ｅが前段の巻き部１３ｆに引っ掛かるので、第２部材１２の溝１２ａ から外れることが防止される。With the above-described structure, when a pulling load is applied to the spring 13, the large-diameter end turn portion 13a of the spring 13 has the bent portion 13b hooked on the preceding turn portion 13c to reduce the diameter. Since the rod guide 3 cannot be shrunk, it is prevented from coming out of the groove 3a of the rod guide 3. Further, since the bent portion 13e of the small-diameter end-turned portion 13d of the spring 13 is caught by the winding portion 13f of the previous stage, it is prevented from coming off the groove 12a of the second member 12.
【００１４】 しかも、スプリング１３をロッドガイド３及び第２部材１２に組み付けるに際 しては、大径の座巻き部１３ａを強制的に内側に押し込むようにして溝３ａ内に 嵌め込む、小径の座巻き部１３ｄを強制的に開いて溝１２ａ内に嵌め込むことで 、組付けを行うことができ、ピンを打込んだり、先端を孔内に挿入するといった 作業が不要になり、組付け性が良くなる。Moreover, when the spring 13 is assembled to the rod guide 3 and the second member 12, the large-diameter end turn portion 13a is forcibly pushed inward and fitted into the groove 3a. By forcibly opening the end turn portion 13d and fitting it into the groove 12a, assembly can be performed, and work such as driving a pin or inserting the tip into the hole is unnecessary, and the assembling property is improved. Will get better.
【００１５】[0015]
以上に説明したように本考案によれば、スプリングの大径の座巻き側先端を内 方へ折り曲げて折曲部となし、この折曲部を前段の巻き部分に外側から引っ掛け るか、或いはスプリングの小径の座巻き側先端を外方へ折り曲げて折曲部となし 、この折曲部を前段の巻き部分に内側から引っ掛けるようにしたので、スプリン グに引き荷重がかかっても座巻き部が前段の巻き部分に引っ掛かかるので、座巻 き部が第１，第２部材から脱落することが防止されると共に、組付け性が向上す る。 As described above, according to the present invention, the tip of the large-diameter end-winding side of the spring is bent inward to form a bent portion, and this bent portion is hooked from the outside to the winding portion of the preceding stage, or The tip of the small-diameter end-turn side of the spring is bent outward to form a bent part, and this bent part is hooked from the inside to the winding part of the previous stage, so even if the spring is pulled, the end-winding part Is caught on the winding portion of the preceding stage, so that the end-wound portion is prevented from falling off from the first and second members, and the assembling property is improved.
【図１】本考案に係るスプリングの脱落防止構造を適用
したシリンダユニットの断面図FIG. 1 is a cross-sectional view of a cylinder unit to which a spring fallout prevention structure according to the present invention is applied.
【図２】スプリングの大径の座巻き部の正面図FIG. 2 is a front view of a large diameter end turn portion of a spring.
【図３】スプリングの大径の座巻き部の底面図FIG. 3 is a bottom view of a large-diameter end-turn portion of a spring.
【図４】スプリングの大径の座巻き部の斜視図FIG. 4 is a perspective view of a large diameter end turn portion of a spring.
【図５】スプリングの小径の座巻き部の正面図FIG. 5 is a front view of a small-diameter end-turn portion of a spring.
【図６】スプリングの小径の座巻き部の底面図FIG. 6 is a bottom view of a small-diameter end-turn portion of a spring.
【図７】スプリングの小径の座巻き部の斜視図FIG. 7 is a perspective view of a small diameter end turn portion of a spring.
【図８】従来のスプリングの脱落防止構造の断面図FIG. 8 is a cross-sectional view of a conventional spring fallout prevention structure.
【図９】従来の別のスプリングの脱落防止構造の断面図FIG. 9 is a cross-sectional view of another conventional spring fallout prevention structure.
１…シリンダ本体、３…ロッドガイド（第１部材）、４
…ロッド、５…ピストン、１２…第２部材、１３…スプ
リング、１３ａ…大径の座巻き部、１３ｂ…大径の座巻
き部の先端、１３ｄ…小径の座巻き部、１３ｅ…小径の
座巻き部の先端、１３ｃ，１３ｆ…前段の巻き部。1 ... Cylinder body, 3 ... Rod guide (first member), 4
... Rod, 5 ... Piston, 12 ... Second member, 13 ... Spring, 13a ... Large diameter end turn portion, 13b ... Large diameter end turn tip, 13d ... Small diameter end turn portion, 13e ... Small diameter end point The tip of the winding portion, 13c, 13f ... Winding portion of the former stage.
Claims (3)
設し、このスプリングの一端の大径の座巻き側を前記第
１の部材の内径溝に、他端の小径の座巻き側を第２部材
の外径溝に係着するスプリングの脱落防止構造におい
て、前記スプリングの大径の座巻き側先端を内方へ折り
曲げて折曲部となし、この折曲部を前段の巻き部分に外
側から引っ掛けたことを特徴とするスプリングの脱落防
止構造。1. A spring is provided between a first member and a second member, and one end of the spring has a large diameter end turn side, and the other end has a small diameter end turn side. In the structure for preventing the spring from falling off, which engages with the outer diameter groove of the second member, the large-diameter end-winding-side end of the spring is bent inward to form a bent portion, and this bent portion is formed in the front winding portion. Spring fall prevention structure characterized by being hooked from outside.
設し、このスプリングの一端の大径の座巻き側を前記第
１の部材の内径溝に、他端の小径の座巻き側を第２部材
の外径溝に係着するスプリングの脱落防止構造におい
て、前記スプリングの小径の座巻き側先端を外方へ折り
曲げて折曲部となし、この折曲部を前段の巻き部分に内
側から引っ掛けたことを特徴とするスプリングの脱落防
止構造。2. A spring is provided between the first member and the second member, and one end of the spring has a large-diameter end turn side in the inner diameter groove of the first member, and the other end has a small-diameter end turn side. In the structure for preventing the spring from falling off, which is engaged with the outer diameter groove of the second member, the tip of the small-diameter end-winding side of the spring is bent outward to form a bent portion, and this bent portion is formed on the front winding portion. Spring fall prevention structure characterized by being hooked from the inside.
設し、このスプリングの一端の大径の座巻き側を前記第
１の部材の内径溝に、他端の小径の座巻き側を第２部材
の外径溝に係着するスプリングの脱落防止構造におい
て、前記スプリングの大径の座巻き側先端を内方へ折り
曲げて折曲部となし、この折曲部を前段の巻き部分に外
側から引っ掛け、更に前記スプリングの小径の座巻き側
先端を外方へ折り曲げて折曲部となし、この折曲部を前
段の巻き部分に内側から引っ掛けたことを特徴とするス
プリングの脱落防止構造。3. A spring is provided between the first member and the second member, and one end of the spring has a large-diameter end-turn side and the other end has a small-diameter end-turn side. In the structure for preventing the spring from falling off, which engages with the outer diameter groove of the second member, the large-diameter end-winding-side end of the spring is bent inward to form a bent portion, and this bent portion is formed in the front winding portion. The spring is characterized in that it is hooked from the outside to the outside, and the tip of the small diameter endwinding side of the spring is bent outward to form a bent part, and this bent part is hooked from the inside to the winding part of the previous stage. Construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993045479U JP2593931Y2 (en) | 1993-08-20 | 1993-08-20 | Structure to prevent coil spring from falling off in hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993045479U JP2593931Y2 (en) | 1993-08-20 | 1993-08-20 | Structure to prevent coil spring from falling off in hydraulic cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0714237U true JPH0714237U (en) | 1995-03-10 |
| JP2593931Y2 JP2593931Y2 (en) | 1999-04-19 |
Family
ID=12720540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1993045479U Expired - Fee Related JP2593931Y2 (en) | 1993-08-20 | 1993-08-20 | Structure to prevent coil spring from falling off in hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2593931Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101387642B1 (en) * | 2014-03-07 | 2014-04-23 | 주식회사 케이오비에이 | Shock absorber |
| JP2016151441A (en) * | 2015-02-16 | 2016-08-22 | 株式会社ミツトヨ | Inside measuring device |
-
1993
- 1993-08-20 JP JP1993045479U patent/JP2593931Y2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101387642B1 (en) * | 2014-03-07 | 2014-04-23 | 주식회사 케이오비에이 | Shock absorber |
| JP2016151441A (en) * | 2015-02-16 | 2016-08-22 | 株式会社ミツトヨ | Inside measuring device |
| CN105890495A (en) * | 2015-02-16 | 2016-08-24 | 株式会社三丰 | Inside measuring instrument |
| CN105890495B (en) * | 2015-02-16 | 2020-11-13 | 株式会社三丰 | Internal measuring instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2593931Y2 (en) | 1999-04-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19990107 |
|
| LAPS | Cancellation because of no payment of annual fees |