WO2008032462A1 - Actionneur - Google Patents
Actionneur Download PDFInfo
- Publication number
- WO2008032462A1 WO2008032462A1 PCT/JP2007/058530 JP2007058530W WO2008032462A1 WO 2008032462 A1 WO2008032462 A1 WO 2008032462A1 JP 2007058530 W JP2007058530 W JP 2007058530W WO 2008032462 A1 WO2008032462 A1 WO 2008032462A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- output shaft
- boot
- actuator
- plate
- convex portion
- Prior art date
Links
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 238000005242 forging Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000001151 other effect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J3/00—Diaphragms; Bellows; Bellows pistons
- F16J3/04—Bellows
- F16J3/041—Non-metallic bellows
- F16J3/043—Non-metallic bellows with particular means for limiting wear
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J3/00—Diaphragms; Bellows; Bellows pistons
- F16J3/04—Bellows
- F16J3/041—Non-metallic bellows
- F16J3/042—Fastening details
Definitions
- the present invention relates to an actuator provided with a boot that prevents an intruder on an output shaft surface.
- one end of the boot is engaged with a groove formed in the case of the actuator, and the other end is engaged with a groove formed on the outer surface of the output shaft.
- a breathing hole communicating between the inside and outside of the actuator is provided in the case.
- Patent Document 1 Japanese Utility Model Publication No. 3-29708
- the conventional actuator is configured as described above, and one end of the boot is locked to a groove formed on the outer surface of the output shaft in a direction perpendicular to the length direction of the output shaft.
- the output shaft had a problem that the cross-sectional area of the portion where the groove was formed was reduced, and the mechanical strength of the output shaft was reduced.
- the mechanical strength of the output shaft in order to ensure the mechanical strength of the output shaft, when the outer diameter of the output shaft in the portion where the groove is formed is increased, the mechanical strength is ensured, but the same outer diameter as this thickened portion is ensured. It is necessary to prepare an output shaft member and scrape off an excessive portion of the member. For this reason, a lot of useless parts are generated on the output shaft, which complicates the manufacturing process and raises the manufacturing cost.
- the present invention has been made to solve the above-described problems, and an object of the present invention is to obtain an actuator capable of locking a boot to the output shaft without impairing the mechanical strength of the output shaft. .
- the actuator according to the present invention is formed with a collar for locking the end of the boot on one end side, a cylindrical plate fitted to the output shaft, and the plate formed on the outer surface of the output shaft. And a breathing hole that communicates the inside and the outside of the boot between the output shaft and the plate.
- the cylindrical plate formed with the collar that locks the end of the boot is fitted to the output shaft, and the convex portion that locks the plate is formed on the output shaft.
- the boot can be locked to the output shaft without impairing the mechanical strength of the output shaft.
- a breathing hole that communicates the inside and outside of the boot is formed between the output shaft and the plate, it is not necessary to provide this breathing hole at another location, and there is no need for extra space.
- FIG. 1 is a partial cross-sectional view of an actuator according to a first embodiment.
- FIG. 2 is an enlarged view of a boot locking portion according to the first embodiment.
- FIG. 3 is an enlarged view of a boot locking portion according to a second embodiment.
- FIG. 4 is an enlarged view of a boot locking portion according to Embodiment 3.
- FIG. 5 is an enlarged view of a boot locking portion according to Embodiment 4.
- FIG. 1 is a partial sectional view showing an example of the configuration of an actuator 1 according to Embodiment 1 of the present invention.
- an actuator using an electromagnetic force (motor) as a drive method for the output shaft will be described.
- the present invention is not limited to other drive methods, for example, a drive method using air pressure, hydraulic pressure, ultrasonic waves, or the like. It can also be applied to an actuator using.
- the actuator 1 includes an external input / output connector 2 for connecting an external power supply for applying a voltage, a terminal 3 for supplying the voltage applied to the external input / output connector 2 to the inside of the actuator, and an external terminal 3
- a boot 9 and a metal plate 14 that is locked to one end of the boot 9 and fitted to the output shaft 20 are provided. Further, one end of the cover 11 and the joint 12 is attached to the tip of the output shaft 20 by a nut 13, and the other end of the joint 12 is connected to an external device via a link plate 15.
- FIG. 2 (a) is an enlarged cross-sectional view of a portion A in FIG. 1 (a locking portion of the boot 9).
- the boot 9 is formed by forming an elastic body such as silicon rubber into a bellows-like cylindrical shape.
- One end 9a of the boot 9 is engaged and locked with a protrusion 10a formed on the outer surface of the end of the boss 10 with a groove 9b formed on the inner surface thereof.
- the other end 9c of the boot 9 is locked to the flange 14a of the cylindrical plate 14 fitted to the output shaft 20.
- the inner diameter C of the plate 14 has a breathing hole 30 that communicates the inside and the outside of the boot 9 between the inner surface of the plate 14 that is larger than the outer diameter D of the output shaft 20 and the outer surface of the output shaft 20. Is provided.
- two convex portions 20b are formed on the outer surface of the output shaft 20 so as to protrude into a rectangular shape by forging, and the distance B from the end surface of the convex portion 20b to the end surface of the other convex portion 20b is the plate B It is formed larger than the inner diameter C of 14.
- Fig. 2 (b) is an enlarged view of the portion F in Fig. 2 (a), and the arrows in the figure indicate the flow of the atmosphere.
- Fig. 2 (c) is a cross-sectional view taken along line GG in Fig. 2 (a).
- the plate 14 always receives a direction force and a direction force toward the boss 10 side as the boot 9 locked to the heel 14a tries to shrink. Further, since the plate 14 is restricted from moving toward the boss 10 by the convex portion 20b, the plate 14 is always formed on the output shaft 20. It is locked in contact with the projection 20b. For this reason, the boot 9 also expands and contracts in response to the linear motion of the output shaft 20, the gap between the output shaft 20 and the boss 10 is always covered by the boot 9, and the inside of the actuator 1 from the gap between the output shaft 20 and the boss 10 Prevents intrusions such as dust and liquid from entering.
- one or a plurality of force convex portions 20b in which the convex portions 20b are formed at two locations may be formed.
- the shape of the convex portion 20b is not limited to a rectangle.
- a flat portion is formed along the length direction of a part of the output shaft 20 (Le, loose D-cut), and the output shaft 20 of the boss 10.
- the shape of the hole into which the hole is inserted may be the same as the radial cross section of the output shaft 20.
- the plate 14 may be made of resin in order to reduce manufacturing costs.
- the actuator 1 is configured such that the cylindrical plate 14 formed with the flange 14a that locks the end of the boot 9 on one end is fitted to the output shaft 20, and the output thereof Since the convex part 20b that locks the plate 14 is formed on the outer surface of the shaft 20, the mechanical strength of the output shaft 20 is lost because there is no need to form a groove for locking the plate 14 on the output shaft 20.
- Boot 9 can be locked without
- the convex portion 20b is formed on the output shaft 20 by forging, and the separately formed plate 14 is simply fitted to the output shaft 20, thereby simplifying the manufacturing process and reducing the manufacturing cost. effective.
- the output shaft 20 is operated, the atmosphere inside the boot 9 enters and exits through the breathing hole 30, so that the output shaft 20 is free of the atmospheric pressure fluctuation in the boot 9 and has the effect of performing a linear motion smoothly. is there.
- FIG. 3 is a diagram showing a boot locking portion according to the second embodiment.
- the same reference numerals are given to the same components as those in FIG. FIG. 3 (a) is an enlarged view of the boot locking portion according to the second embodiment.
- Fig. 3 (b) is an enlarged view of the portion H in Fig. 3 (a), and the arrows in the figure indicate the flow of the atmosphere.
- Fig. 3 (c) is a cross-sectional view taken along line KK in Fig. 3 (a).
- Fig. 3 (d) is a cross-sectional view taken along line J_J in Fig. 3 (a).
- a part of the outer surface of the output shaft 21 in the axial direction is unevenly formed on the entire circumference in the radial direction by knurling. Portions 21b and 21a are formed.
- the convex portion 21a is formed by knurling, the plate 14 fitted to the output shaft 21 is locked by the convex portion 21a. And between this convex part 21a and the convex part 21a, the recessed part 21b which is a breathing hole which the inside of the boot 9 and the exterior communicate is formed. For this reason, the atmosphere inside the boot 9 enters and exits through the breathing hole 30 and the recess 21b as shown by the arrows in FIG. 3 (b).
- the convex portion 21a may be formed only on a part of the outer surface of the output shaft 21 in the radial direction. Other effects are the same as in the first embodiment.
- FIG. 4 is a view showing a boot locking portion according to Embodiment 3, and the same reference numerals are given to the same components as those in FIG.
- FIG. 4 (a) is an enlarged view of the boot locking portion according to the third embodiment.
- Fig. 4 (b) is an enlarged view of the part L in Fig. 4 (a).
- the arrows in the figure indicate the flow of the atmosphere.
- Fig. 4 (c) is a cross-sectional view taken along line MM in Fig. 4 (a).
- the plate 14 is press-fitted into the uneven portions 21b and 2la formed on the outer surface of the output shaft 21 by knurling.
- the plate 14 is made of metal, the reliability (durability) as a holding structure in the knurled portion is improved.
- the concavo-convex portions 21 b and 21 a may be only the convex portion 21 a or the concave portion 21 b that may be formed on the inner surface of the plate 14.
- the inner diameter of the plate 14 needs to be smaller than the outer diameter of the output shaft 21.
- the plate 14 since the plate 14 is securely fixed to the output shaft 21 by press-fitting, the plate 14 is not rattled due to external factors such as vibration, and wear due to rattling is prevented. This has the effect of improving the reliability of the actuator 1.
- it since it is fixed by press-fitting, it can be configured with a simple assembly method. Other effects are the same as those of the second embodiment.
- FIG. 5 is a view showing a boot locking portion according to the fourth embodiment, and the description will be made by attaching the same reference numerals to the same components as those in FIG.
- FIG. 5 (a) is an enlarged view of the boot locking portion according to the fourth embodiment.
- a cylindrical projection 16 having a groove 16a on the outer peripheral surface is formed on the outer surface of the output shaft 22 by resin insert molding, and the end 9c of the boot 9 is engaged with the groove 16a.
- FIG. 5 (b) is an enlarged view of the portion N in FIG. 5 (a). In a part of the convex portion 16, a breath that communicates the inside and the outside of the boot 9 between the boot 9 and the output shaft 22 is shown. Hole 16b is provided.
- FIG. 5 (c) is a cross-sectional view taken along the line PP in Fig. 5 (a).
- the convex portion 16 only needs to be able to lock the end portion 9c of the boot 9.
- the convex portion 16 is formed on the output shaft 22 in a cylindrical shape having a flange at one end of the same shape as the plate 14, and the boot 9
- a breathing hole 16b that connects the inside and the outside of the boot 9 may be provided between the output shaft 22 and the output shaft 22.
- a convex portion 16 having a groove 16a for locking the end portion 9c of the boot 9 and a breathing hole 16b communicating the inside and the outside of the boot 9 is formed by resin insert molding. ing. For this reason, there exists an effect which processing is simplified and processing cost can be reduced. Other effects are the same as those of the third embodiment.
- the actuator according to the present invention can be used for a place where dustproof and driving force is required because the boot can be locked to the output shaft without impairing the mechanical strength of the output shaft. Suitable for doing.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Diaphragms And Bellows (AREA)
- Sealing Devices (AREA)
- Actuator (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008534250A JPWO2008032462A1 (ja) | 2006-09-15 | 2007-04-19 | アクチュエータ |
DE112007001672T DE112007001672B4 (de) | 2006-09-15 | 2007-04-19 | Aktuator |
US12/305,924 US20100230907A1 (en) | 2006-09-15 | 2007-04-19 | Actuator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-251359 | 2006-09-15 | ||
JP2006251359 | 2006-09-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008032462A1 true WO2008032462A1 (fr) | 2008-03-20 |
Family
ID=39183531
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/058530 WO2008032462A1 (fr) | 2006-09-15 | 2007-04-19 | Actionneur |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100230907A1 (ja) |
JP (1) | JPWO2008032462A1 (ja) |
CN (1) | CN101490449A (ja) |
DE (1) | DE112007001672B4 (ja) |
WO (1) | WO2008032462A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010134125A1 (ja) * | 2009-05-19 | 2010-11-25 | 三菱電機株式会社 | カバー |
WO2011058609A1 (ja) * | 2009-11-13 | 2011-05-19 | 三菱電機株式会社 | 連結構造 |
JP2013231392A (ja) * | 2012-04-27 | 2013-11-14 | Yutaka Giken Co Ltd | サーモアクチュエータ |
JP2016500999A (ja) * | 2012-09-25 | 2016-01-14 | ブローゼ ファールツォイクタイレ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニ コマンディートゲゼルシャフト ハルシュタットBrose Fahrzeugteile GmbH & Co. KG, Hallstadt | 自動車の調節エレメント用のスピンドル駆動装置 |
WO2022107574A1 (ja) * | 2020-11-18 | 2022-05-27 | 日立Astemo株式会社 | 電動アクチュエータ及びこれを備えた車両用ドラムブレーキ |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011122316A1 (de) | 2011-12-23 | 2013-06-27 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt | Spindelantrieb für ein Verstellelement eines Kraftfahrzeugs |
US9108671B2 (en) * | 2012-08-01 | 2015-08-18 | GM Global Technology Operations LLC | Seal assembly |
WO2016135825A1 (ja) * | 2015-02-23 | 2016-09-01 | 三菱電機株式会社 | シャフト支持部の耐熱構造及びアクチュエータ |
JP6838935B2 (ja) * | 2016-10-31 | 2021-03-03 | Ntn株式会社 | 電動アクチュエータ |
DE102017110026A1 (de) * | 2017-05-10 | 2018-11-15 | Schaeffler Technologies AG & Co. KG | Kolbenstange und hydraulische Zylinderanordnung aufweisend eine derartige Kolbenstange |
DE102017011793B3 (de) * | 2017-12-20 | 2019-05-16 | Fte Automotive Gmbh | Hydraulikzylinder mit einer belüfteten Schutzeinrichtung an einer Kolbenstange |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5712840U (ja) * | 1980-06-27 | 1982-01-22 | ||
JPH01100930U (ja) * | 1987-12-26 | 1989-07-06 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL237175A (ja) * | 1959-01-29 | |||
US3223401A (en) * | 1964-01-13 | 1965-12-14 | Pullman Inc | Hydraulic cushion cylinder head arrangement |
US4154434A (en) * | 1977-10-26 | 1979-05-15 | Wallis Bernard J | Boot arrangement for piston-cylinder assembly |
FR2414145A1 (fr) * | 1978-01-04 | 1979-08-03 | Citroen Sa | Joint de transmission a protecteur a soufflet |
CA1333181C (en) * | 1985-01-10 | 1994-11-22 | Hidemi Sugiura | Plastic boots and method of manufacturing the same |
JPS61160673A (ja) * | 1985-01-10 | 1986-07-21 | Toyoda Gosei Co Ltd | 樹脂製防塵ブ−ツ及びその製造方法 |
IT1228389B (it) * | 1988-01-21 | 1991-06-14 | Volkswagen Ag | Copertura di protezione per l'asta dello stantuffo di un ammortizzatore di vibrazioni idraulico per autoveicoli. |
JPH0329708U (ja) * | 1989-08-02 | 1991-03-25 | ||
US5015002A (en) * | 1990-06-29 | 1991-05-14 | Daystar, Inc. | Protective bellows |
US7097004B2 (en) * | 2003-01-24 | 2006-08-29 | Akebono Corporation (North America) | Pressure bleeding boot-type seal |
-
2007
- 2007-04-19 US US12/305,924 patent/US20100230907A1/en not_active Abandoned
- 2007-04-19 DE DE112007001672T patent/DE112007001672B4/de not_active Expired - Fee Related
- 2007-04-19 JP JP2008534250A patent/JPWO2008032462A1/ja active Pending
- 2007-04-19 WO PCT/JP2007/058530 patent/WO2008032462A1/ja active Application Filing
- 2007-04-19 CN CNA2007800274264A patent/CN101490449A/zh active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5712840U (ja) * | 1980-06-27 | 1982-01-22 | ||
JPH01100930U (ja) * | 1987-12-26 | 1989-07-06 |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010134125A1 (ja) * | 2009-05-19 | 2010-11-25 | 三菱電機株式会社 | カバー |
JP5312580B2 (ja) * | 2009-05-19 | 2013-10-09 | 三菱電機株式会社 | カバー及びアクチュエータ |
CN102333972B (zh) * | 2009-05-19 | 2015-05-27 | 三菱电机株式会社 | 盖及致动器 |
DE112009004790B4 (de) * | 2009-05-19 | 2016-11-17 | Mitsubishi Electric Corporation | Abdeckung |
DE112009004790B8 (de) * | 2009-05-19 | 2017-01-12 | Mitsubishi Electric Corporation | Abdeckung und Aktuator |
WO2011058609A1 (ja) * | 2009-11-13 | 2011-05-19 | 三菱電機株式会社 | 連結構造 |
JP2013231392A (ja) * | 2012-04-27 | 2013-11-14 | Yutaka Giken Co Ltd | サーモアクチュエータ |
JP2016500999A (ja) * | 2012-09-25 | 2016-01-14 | ブローゼ ファールツォイクタイレ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニ コマンディートゲゼルシャフト ハルシュタットBrose Fahrzeugteile GmbH & Co. KG, Hallstadt | 自動車の調節エレメント用のスピンドル駆動装置 |
US10808444B2 (en) | 2012-09-25 | 2020-10-20 | Brose Fahrzeugteile Gmbh & Co. Kg, Hallstadt | Spindle drive for an adjustment element of a motor vehicle |
WO2022107574A1 (ja) * | 2020-11-18 | 2022-05-27 | 日立Astemo株式会社 | 電動アクチュエータ及びこれを備えた車両用ドラムブレーキ |
Also Published As
Publication number | Publication date |
---|---|
US20100230907A1 (en) | 2010-09-16 |
DE112007001672T5 (de) | 2009-07-16 |
CN101490449A (zh) | 2009-07-22 |
DE112007001672B4 (de) | 2012-10-04 |
JPWO2008032462A1 (ja) | 2010-01-21 |
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