WO2011010568A1 - 計器用駆動装置 - Google Patents
計器用駆動装置 Download PDFInfo
- Publication number
- WO2011010568A1 WO2011010568A1 PCT/JP2010/061742 JP2010061742W WO2011010568A1 WO 2011010568 A1 WO2011010568 A1 WO 2011010568A1 JP 2010061742 W JP2010061742 W JP 2010061742W WO 2011010568 A1 WO2011010568 A1 WO 2011010568A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bearing
- pointer
- shaft
- pointer shaft
- press
- Prior art date
Links
- 230000002265 prevention Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 6
- 239000000314 lubricant Substances 0.000 abstract description 3
- 229920003002 synthetic resin Polymers 0.000 description 6
- 239000000057 synthetic resin Substances 0.000 description 6
- 230000005389 magnetism Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 230000005284 excitation Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/02—Bearings or suspensions for moving parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D2213/00—Indexing scheme relating to constructional details of indicators
- G01D2213/10—Drivers for gauges
Definitions
- the present invention relates to an instrument driving device, and more particularly to an instrument driving device having a feature in a bearing portion of a pointer shaft to which a pointer is attached.
- a conventional instrument drive device includes a case main body having a first bearing portion and a second bearing portion that penetrate each other, and a shaft that is rotatable by the first bearing portion and the second bearing portion. And a pointer shaft to be supported. One end of the pointer shaft protrudes outside from the case body, a pointer is attached, and the other end protrudes outside from the case body.
- the pointer is press-fitted into the pointer shaft, the exposed other end of the pointer shaft is brought into contact with a jig, and the pressing force applied to the pointer shaft is received by the jig.
- a load during press-fitting is not applied to the case body, and damage to the case body can be prevented (for example, a patent Reference 1).
- the other end which is the lower end of the pointer shaft, protrudes outward from the case body, so that a liquid such as a lubricant is present inside the case body.
- a liquid such as a lubricant
- An object is to provide an apparatus.
- the present invention is rotatably supported by a case main body having a first bearing portion and a second bearing portion that penetrate each other, and the first bearing portion and the second bearing portion.
- An instrument driving device comprising a pointer shaft to which a pointer is attached to a part protruding outward from the case body, and is press-fitted and held in the second bearing portion and restricts movement of the pointer shaft in the axial direction
- the second bearing portion includes a shaft support portion that pivotally supports the pointer shaft, and a holding portion in which the bearing body is press-fitted and held. The diameter of the holding part is reduced.
- the second bearing portion is provided with a slip prevention portion having a smaller diameter than the holding portion so that the bearing body does not fall out.
- the intended purpose can be achieved, the load when the pointer is press-fitted into the pointer shaft is not received by the case body, and the liquid in the case body can be prevented from leaking.
- An instrument driving device can be provided.
- the top view of the stepping motor of one embodiment of the present invention Sectional drawing of the AA line in FIG. The principal part expanded sectional view of the embodiment.
- 1 to 4 show an embodiment of the present invention.
- the instrument driving device of the present embodiment is a stepping motor 1, and this stepping motor 1 meshes with a rotor magnet 2 magnetized with multiple poles, a rotor gear 3 fixed to the rotor magnet 2, and the rotor gear 3.
- An intermediate gear 4 having a first gear 4a and a second gear 4b provided coaxially with the first gear 4a, an output gear 5 meshing with the second gear 4b of the intermediate gear 4, and an output gear 5, a pointer shaft 6 that serves as a rotation center, two excitation coils 9 that generate a rotating magnetic field and apply a rotational force to the rotor magnet 2, and a metal first rotation shaft 10 that serves as the rotation center of the rotor magnet 2.
- the second rotation shaft 11 made of metal that becomes the rotation center of the intermediate gear 4, the rotor magnet 2, the rotor gear 3, the intermediate gear 4, the output gear 5, the pointer shaft 6, the excitation coil 9, and the first rotation shaft 10.
- the case book that houses the second rotating shaft 11 Those having a 12.
- the rotor magnet 2 is made of a synthetic resin having magnetism called a so-called plastic magnet.
- the shape of the rotor magnet 2 is a disk shape and a donut shape having a through hole in the center.
- the rotor gear 3 and the first rotating shaft 10 pass through this through hole.
- the rotor magnet 2 includes a plurality of magnetic poles so as to be uniform in the radial direction around the rotation axis. In this embodiment, two N poles and two S poles are provided for a total of four magnetic poles. Therefore, when the rotation is performed with the first rotation shaft 10 as the central axis, the outer circumferential surface of the rotor magnet 2 is multipolarly magnetized along the rotation direction.
- the rotor gear 3 is made of a synthetic resin that does not have magnetism.
- the first rotating shaft 10 passes through the rotor gear 3, and the rotor magnet 2 and the rotor gear 3 are rotatably supported by the first rotating shaft 10, and the rotor gear 3 is connected to the rotor magnet 2. Rotates with rotation.
- the intermediate gear 4 is made of a synthetic resin not having magnetism, and integrally includes a first gear 4a and a second gear 4b.
- the intermediate gear 4 is rotatably supported on the second rotating shaft 11.
- the output gear 5 is also made of a synthetic resin not having magnetism.
- the output gear 5 is fixed to the pointer shaft 6 and rotates together with the pointer shaft 6.
- a first protrusion 15 a constituting the stopper means 15 is integrally provided on the lower surface of the output gear 5.
- the first protrusion 15a abuts on a second protrusion 15b provided on the case main body 12, which will be described later, and stops the rotation of the output gear 5 at a predetermined position.
- the intermediate gear 4 and the output gear 5 transmit the rotation of the rotor magnet 2 while decelerating it.
- the pointer shaft 6 is made of metal, is pivotally supported by the case main body 12 and has a pointer (not shown) attached to a part protruding outward from the case main body 12.
- the exciting coil 9 is formed by winding a conductive metal wire such as copper around a bobbin 9a made of synthetic resin.
- the exciting coil 9 is connected to control means via a terminal 9b provided on the bobbin 9a.
- the bobbin 9a is a cylinder provided with a through hole having a rectangular cross-sectional shape. And the exciting coil 9 is arrange
- the inner peripheral surfaces of are facing each other.
- the case body 12 is made of a synthetic resin not having magnetism, and includes an upper case 12a and a lower case 12b.
- the upper and lower cases 12a and 12b are fixed by hooking locking claws 12c provided on the upper and lower cases 12a and 12b.
- the lower case 12b is integrally provided with a second protrusion 15b that abuts on the first protrusion 15a provided on the output gear 5.
- the case main body 12 supports the pointer shaft 6 so as to be rotatable, press-fits the first rotating shaft 10 and the second rotating shaft 11, and is fixed so as not to rotate.
- the case body 12 includes a first bearing portion 13 and a second bearing portion 14 that rotatably support the pointer shaft 6.
- the first bearing portion 13 is provided on the upper case 12a
- the second bearing portion 14 is provided on the lower case 12b.
- the first bearing portion 13 and the second bearing portion 14 are both through-holes, and the cross-sectional shape in the direction perpendicular to the axial direction of the pointer shaft 6 is circular.
- a part of the pointer shaft 6 protrudes from the case body 12 to the outside from the first bearing portion 13 side, and the pointer is attached to the protruding part.
- the second bearing portion 14 includes a shaft support portion 14a that rotatably supports the pointer shaft 6 and a holding portion 14b having a diameter r2 smaller than the diameter r1 of the shaft support portion 14a.
- the shaft support portion 14a and the holding portion 14b have a circular cross-sectional shape in the direction perpendicular to the axial direction of the pointer shaft 6, and each circle is a concentric circle.
- a bearing body 16 made of a metal sphere that contacts the pointer shaft 6 and restricts the movement of the pointer shaft 6 in the axial direction is press-fitted and held in the holding portion 14b.
- the lower end of the bearing body 16 is substantially the same as the bottom surface 12d of the lower case 12b, or is located inside the case body 12 from the bottom surface 12d of the lower case 12b.
- the diameter r1 of the shaft support portion 14a is larger than the diameter r4 of the pointer shaft 6 in order to pivotally support the pointer shaft 6.
- the diameter r2 of the holding portion 14b is smaller than the diameter r5 of the bearing body 16 in order to press-fit and hold the bearing body 16.
- the shaft support portion 14a is smooth so as to suppress resistance when the pointer shaft 6 is rotated as much as possible, and when the bearing body 16 is inserted into the shaft support portion 14a in order to press-fit the bearing body 16 into the holding portion 14b.
- the diameter r5 of the bearing body 16 is smaller than the diameter r4 of the pointer shaft 6 so that the bearing body 16 does not damage the shaft support portion 14a.
- the second bearing portion 14 is provided with a slip-out preventing portion 14c having a diameter r3 smaller than the holding portion 14b so that the bearing body 16 does not fall off.
- the diameter r ⁇ b> 3 of the slip-off preventing portion 14 c has a mortar shape that decreases from the inside to the outside of the case body 12.
- the jig J When the pointer is fixed to the pointer shaft 6, the jig J is brought into contact with the bottom surface 12d of the lower case 12b, and the pointer is press-fitted into the pointer shaft 6 and fixed. The jig J receives the force applied to the pointer shaft 6 during press-fitting through the bearing body 16.
- the instrument drive device is a stepping motor, but is not limited to a stepping motor, and is a cross coil type instrument body provided with a liquid such as damper oil in a case body. Also good.
- the present invention can be used for an instrument drive device in which a liquid is built in a case body and a pointer is press-fitted into a pointer shaft.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Instrument Panels (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
6 指針軸
12 ケース本体
13 第1の軸受部
14 第2の軸受部
14a 軸支部
14b 保持部
14c 抜け防止部
16 軸受体
J 治具
Claims (2)
- 各々貫通した第1の軸受部と第2の軸受部とを備えたケース本体と、前記第1の軸受部と前記第2の軸受部とによって回動自在に軸支されるとともに前記ケース本体より外部に突出した一部に指針が取り付けられる指針軸と、を備えた計器用駆動装置において、前記第2の軸受部に圧入保持されるとともに前記指針軸の軸方向の移動を規制する軸受体を備え、前記第2の軸受部は、前記指針軸を回動自在に軸支する軸支部と、前記軸受体が圧入保持される保持部とを備え、前記軸支部に対して前記保持部の直径を小さくしたことを特徴とする計器用駆動装置。
- 前記第2の軸受部に、前記軸受体が抜け落ちないように前記保持部よりさらに直径の小さい抜け防止部を備えたことを特徴とする請求項1に記載の計器用駆動装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201080032924.XA CN102472643B (zh) | 2009-07-21 | 2010-07-12 | 仪表用驱动装置 |
EP10802188.2A EP2458343B1 (en) | 2009-07-21 | 2010-07-12 | Instrument drive device |
US13/384,733 US20120118220A1 (en) | 2009-07-21 | 2010-07-12 | Instrument drive device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009-169768 | 2009-07-21 | ||
JP2009169768A JP5322033B2 (ja) | 2009-07-21 | 2009-07-21 | 計器用駆動装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011010568A1 true WO2011010568A1 (ja) | 2011-01-27 |
Family
ID=43499040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/061742 WO2011010568A1 (ja) | 2009-07-21 | 2010-07-12 | 計器用駆動装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20120118220A1 (ja) |
EP (1) | EP2458343B1 (ja) |
JP (1) | JP5322033B2 (ja) |
CN (1) | CN102472643B (ja) |
WO (1) | WO2011010568A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI465729B (zh) * | 2012-09-06 | 2014-12-21 | Proweal Counter Corp | 防抖動之指針驅動裝置 |
US9143062B1 (en) * | 2013-03-09 | 2015-09-22 | Edward Riggs Monfort | Direct current regeneration system |
EP2790278B1 (en) | 2013-04-11 | 2017-09-27 | Delphi International Operations Luxembourg S.à r.l. | Crimp die |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4736125Y1 (ja) * | 1971-06-24 | 1972-11-01 | ||
JPS5027804U (ja) * | 1973-07-06 | 1975-03-31 | ||
JPH07280839A (ja) * | 1994-04-06 | 1995-10-27 | Yazaki Corp | クロスコイル型計器用ムーブメント及びその製造方法 |
JP2004251656A (ja) | 2003-02-18 | 2004-09-09 | Calsonic Kansei Corp | 計器用指針組付構造および組付方法 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3066643A (en) * | 1960-05-02 | 1962-12-04 | United Carr Fastener Corp | Electrical device |
GB1414566A (en) * | 1973-05-11 | 1975-11-19 | Foseco Int | Cermic materials |
JPS5332609Y2 (ja) * | 1974-02-26 | 1978-08-12 | ||
US5062135A (en) * | 1988-11-09 | 1991-10-29 | Yazaki Corporation | Cross coil type indicating gauge |
DE3921330A1 (de) * | 1989-06-29 | 1991-01-03 | Vdo Schindling | Drehmagnet-quotientenmesswerk |
US5686832A (en) * | 1993-05-17 | 1997-11-11 | Nu-Tech & Engineering, Inc. | Miniature crossed coil gauge having an active flux ring |
DE4336924A1 (de) * | 1993-10-29 | 1995-05-04 | Vdo Schindling | Meßwerkkontaktierung |
JP3542052B2 (ja) * | 1995-08-23 | 2004-07-14 | 矢崎総業株式会社 | 指針式表示装置 |
DE19806118A1 (de) * | 1998-02-14 | 1999-08-19 | Bosch Gmbh Robert | Wellenantriebsvorrichtung |
JP3606056B2 (ja) * | 1998-07-23 | 2005-01-05 | 株式会社デンソー | 計器 |
JP2000065863A (ja) * | 1998-08-19 | 2000-03-03 | Kansei Corp | 交差コイル式計器 |
US6190049B1 (en) * | 1998-10-19 | 2001-02-20 | Vincent H. Rose | Fluid thrust bearing for indicating instruments and the like |
JP3433684B2 (ja) * | 1998-11-16 | 2003-08-04 | 株式会社デンソー | 交差コイル型指示計器 |
US6067867A (en) * | 1998-12-30 | 2000-05-30 | Daimlerchrysler Corporation | Mini instrument needle indicator |
JP2001012975A (ja) * | 1999-06-30 | 2001-01-19 | Nippon Seiki Co Ltd | 指針駆動装置 |
WO2001009624A1 (en) * | 1999-07-30 | 2001-02-08 | Nippon Seiki Co., Ltd | Coil type meter |
JP3216129B2 (ja) * | 1999-08-31 | 2001-10-09 | 日本精機株式会社 | 計器装置 |
DE19956542A1 (de) * | 1999-11-24 | 2001-05-31 | Mannesmann Vdo Ag | Anzeigeinstrument, insbesondere in einem Kraftfahrzeug |
JP3477710B2 (ja) * | 2000-12-28 | 2003-12-10 | 日本精機株式会社 | 可動磁石式計器 |
JP5397702B2 (ja) * | 2010-09-15 | 2014-01-22 | 日本精機株式会社 | 計器用駆動装置 |
-
2009
- 2009-07-21 JP JP2009169768A patent/JP5322033B2/ja not_active Expired - Fee Related
-
2010
- 2010-07-12 WO PCT/JP2010/061742 patent/WO2011010568A1/ja active Application Filing
- 2010-07-12 US US13/384,733 patent/US20120118220A1/en not_active Abandoned
- 2010-07-12 EP EP10802188.2A patent/EP2458343B1/en not_active Not-in-force
- 2010-07-12 CN CN201080032924.XA patent/CN102472643B/zh not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4736125Y1 (ja) * | 1971-06-24 | 1972-11-01 | ||
JPS5027804U (ja) * | 1973-07-06 | 1975-03-31 | ||
JPH07280839A (ja) * | 1994-04-06 | 1995-10-27 | Yazaki Corp | クロスコイル型計器用ムーブメント及びその製造方法 |
JP2004251656A (ja) | 2003-02-18 | 2004-09-09 | Calsonic Kansei Corp | 計器用指針組付構造および組付方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2458343A4 |
Also Published As
Publication number | Publication date |
---|---|
CN102472643A (zh) | 2012-05-23 |
JP2011022107A (ja) | 2011-02-03 |
US20120118220A1 (en) | 2012-05-17 |
CN102472643B (zh) | 2014-08-20 |
EP2458343B1 (en) | 2017-08-23 |
EP2458343A4 (en) | 2016-09-21 |
JP5322033B2 (ja) | 2013-10-23 |
EP2458343A1 (en) | 2012-05-30 |
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