WO2017158689A1 - Boussole - Google Patents

Boussole Download PDF

Info

Publication number
WO2017158689A1
WO2017158689A1 PCT/JP2016/057996 JP2016057996W WO2017158689A1 WO 2017158689 A1 WO2017158689 A1 WO 2017158689A1 JP 2016057996 W JP2016057996 W JP 2016057996W WO 2017158689 A1 WO2017158689 A1 WO 2017158689A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic
magnet
ferromagnetic
polarity
needle member
Prior art date
Application number
PCT/JP2016/057996
Other languages
English (en)
Japanese (ja)
Inventor
生形　宗一
コク リョン リ
Original Assignee
ボンディング カンパニー リミテッド
生形　宗一
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ボンディング カンパニー リミテッド, 生形　宗一 filed Critical ボンディング カンパニー リミテッド
Priority to PCT/JP2016/057996 priority Critical patent/WO2017158689A1/fr
Publication of WO2017158689A1 publication Critical patent/WO2017158689A1/fr

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
    • G01C17/02—Magnetic compasses
    • G01C17/04—Magnetic compasses with north-seeking magnetic elements, e.g. needles

Definitions

  • This invention relates to a compass that indicates the geomagnetic direction using a magnetic needle member.
  • a compass having at least a braking conductor that links at least a part of magnetic flux generated from a portion and brakes rotation of the magnetic needle member through electromagnetic induction is known (for example, Patent Document 1). reference).
  • the present invention has been made by paying attention to the above-mentioned problems, and the object of the present invention is that the braking effect and the geomagnetic directivity are good, and the magnetic adverse effect on a nearby electronic device, a magnetic card, etc. It is in providing the compass magnet which does not give.
  • Another object of the present invention is to provide a magnetic needle member suitable for a compass that has good braking effect and directivity and that does not adversely affect a nearby electronic device or magnetic card. .
  • the disclosure (invention) according to the present application has the following configuration.
  • the compass according to the present disclosure has a first end where the first polarity appears and a second end where the second polarity appears, and the first end and the second end And a magnetic flux generated from the first end and / or the second end of the magnetic needle member.
  • the magnetic needle member is rotatably supported between the magnetic needle member and the magnetic needle member.
  • a compass magnet having at least a braking conductor made of a nonmagnetic electrically conductive material that is linked to at least a part of the magnetic needle member and brakes the rotation of the magnetic needle member through electromagnetic induction
  • the magnetic needle member is Including two ferromagnetic magnets comprising a first ferromagnetic magnet and a second ferromagnetic magnet;
  • the first ferromagnetic magnet is disposed on the first end side with respect to the support point, and is arranged in a posture in which a magnetic pole having a first polarity is directed in an extending direction of the first end portion.
  • the second ferromagnetic magnet is disposed on the second end side with respect to the support point, and is disposed in a posture in which the magnetic pole having the second polarity is directed in the extending direction of the second end portion. Further, the magnetic pole between the second polarity magnetic pole of the first ferromagnetic magnet and the first polarity magnetic pole of the second ferromagnetic magnet passes through a magnetic path made of a high permeability material. Magnetically conducted. At this time, various known magnets can be used as the ferromagnetic magnet, and examples of typical ferromagnetic magnets include ferrite magnets, alnico magnets, neodymium magnets, and samarium / cobalt magnets. Can be mentioned.
  • high magnetic permeability material Various known materials can be used as the high magnetic permeability material, and examples of typical high magnetic permeability materials include pure iron, iron-based alloys, carbon steel, silicon steel, permalloy, and permen. Joules and other materials can be mentioned. Furthermore, various known materials can be used as the nonmagnetic electrically conductive material. Examples of typical nonmagnetic electrically conductive materials include pure gold, pure silver, pure copper, pure aluminum, and alloys thereof. be able to.
  • the two ferromagnetic magnets composed of the first ferromagnetic magnet and the second ferromagnetic magnet are magnetically coupled via the magnetic path made of a high permeability material. Since they are conducted, the two ferromagnetic magnets function as substantially one magnet extending over almost the entire length of the magnetic needle member. For this reason, the two main magnetic poles having different polarities are arranged separately at the first end and the second end of the magnetic needle member. Under the influence of geomagnetism, the magnetic needle member has a large moment. By acting, good directivity can be obtained.
  • the magnetic pole appearing at the first end of the magnetic needle member is the magnetic pole of the first polarity of the first ferromagnetic magnet
  • the magnetic pole appearing at the second end of the magnetic needle member is the second ferromagnetic Since the magnetic poles are of the second polarity of the body magnet, the magnetic poles of different polarity of the ferromagnetic magnet exist next to each of the two magnetic poles. Therefore, the first end of the magnetic needle member and the second magnetic pole member Most of the large amount of magnetic flux (lines of magnetic force) appearing at the end of 2 is not a magnetic pole located at the opposite end, but rather a relatively small loop to the opposite polarity magnetic pole of the ferromagnetic magnet located immediately adjacent to it. I will draw and pass.
  • the magnetic flux (of the magnetic needle member) that passes through a relatively large loop to the opposite end of the magnetic needle member is relatively reduced, and magnetic adverse effects on electronic devices and magnetic cards existing in the vicinity are reduced.
  • the magnetic needle member includes a magnetic base piece made of a high permeability material and having a length corresponding to substantially the entire length of the magnetic needle member; Both the first ferromagnetic magnet and the second ferromagnetic magnet are minute long ferromagnetic magnets that are sufficiently shorter than the magnetic base piece, The first minute long ferromagnetic magnet is fixed to a first end portion of the magnetic base piece in a posture in which a magnetic pole having a first polarity is directed in an extending direction of the first end portion, The second minute long ferromagnetic magnet is fixed to the second end of the magnetic base piece in a posture in which the magnetic pole of the second polarity is directed in the extending direction of the second end, As a result, the magnetic base piece that functions as the magnetic path is between the magnetic pole of the second polarity of the first ferromagnetic magnet and the magnetic pole of the first polarity of the second ferromagnetic magnet. It may be one that is magnetically conducted via
  • the magnetic base piece itself that functions as the magnetic path also functions as a support for supporting the two ferromagnetic magnets and occupies most of the entire outer shape of the magnetic needle member.
  • the magnetic base piece may be a normal magnetic magnet magnetized such that the first end side has a first polarity and the second end side has a second polarity. Good. At this time, the normal magnetic magnet may be a carbon steel magnet.
  • the magnetic strength at both ends of the magnetic needle member is increased by the amount corresponding to the magnetic strength of the normal magnetic magnet, while the magnetic flux passing from one end to the other end of the normal magnetic magnet is increased to two strong. Since the spread to the periphery is suppressed under the influence of the magnetic field of the magnetic magnet, the directivity and the braking effect can be enhanced while reducing the influence on the surrounding electronic devices and magnetic cards.
  • the first minute long ferromagnetic magnet and the second minute long ferromagnetic magnet are both fixed to the tip of the magnetic base piece in such a posture as to protrude forward from the tip. It may be a thing.
  • Each of the first ferromagnetic magnet and the second ferromagnetic magnet has a length that is somewhat shorter than half of the total length of the magnetic needle member, and the two ferromagnetic magnets are Further, it may be integrally coupled via a bearing member made of a high magnetic permeability material.
  • the bearing member is usually a carbon steel magnet or the like magnetized so that the first end side has the first polarity and the second end side has the second polarity.
  • a magnetic magnet may be used.
  • the brake conductor may have an annular conductor portion surrounding a circular locus drawn by a tip of the magnetic needle member.
  • “having an annular conductor portion” means that not only the ring itself but also a bottomed ring having a bottom plate integrally may be used.
  • it has a case of a compass magnet that accommodates components including the magnetic needle member and the braking conductor, and the case can be mounted side by side with the watch on a watch band of a watch.
  • the thing with which the mounting tool was provided integrally may be sufficient.
  • the present invention viewed from another aspect can be grasped as a magnetic needle member of a compass. That is, this magnetic needle member is A first end portion where the first polarity appears and a second end portion where the second polarity appears, and a point support rotatably between the first end portion and the second end portion A magnetic needle member that is disposed in proximity to the magnetic needle member, interlinked with at least a part of the magnetic flux generated from the first end and / or the second end of the magnetic needle member,
  • the magnetic needle member used for a compass having at least a braking conductor made of a non-magnetic electric conductive material that brakes the rotation of the magnetic needle member through an electromagnetic induction action, Including two ferromagnetic magnets comprising a first ferromagnetic magnet and a second ferromagnetic magnet;
  • the first ferromagnetic magnet is disposed on the first end side with respect to the support point, and is arranged in a posture in which a magnetic pole having a first polarity
  • the second ferromagnetic magnet is disposed on the second end side with respect to the support point, and is disposed in a posture in which the magnetic pole having the second polarity is directed in the extending direction of the second end portion. Further, the magnetic pole between the second polarity magnetic pole of the first ferromagnetic magnet and the first polarity magnetic pole of the second ferromagnetic magnet passes through a magnetic path made of a high permeability material. This is a magnetic needle member for a compass that is magnetically conductive.
  • various known magnets can be adopted as the ferromagnetic magnet, and examples of the typical ferromagnetic magnet include an alnico magnet, a neodymium magnet, and a samarium / cobalt magnet. it can.
  • Various known materials can be used as the high magnetic permeability material, and examples of typical high magnetic permeability materials include pure iron, iron-based alloys, carbon steel, silicon steel, permalloy, and permen. Joules and other materials can be mentioned.
  • various known materials can be used as the nonmagnetic electrically conductive material. Examples of typical nonmagnetic electrically conductive materials include pure gold, pure silver, pure copper, pure aluminum, and alloys thereof. be able to.
  • a compass that has a good braking effect and good geomagnetic directivity, and that does not adversely affect a nearby electronic device or a magnetic card.
  • FIG. 1 is an exploded perspective view of a compass according to the present invention.
  • FIG. 2 is a view showing an assembled state of the compass according to the present invention.
  • FIG. 3 is an explanatory view showing two examples of the magnetic base piece.
  • FIG. 4 is an explanatory diagram of the operation of the compass according to the present invention.
  • FIG. 5 is a diagram comparing the operation of the present invention and the conventional example.
  • FIG. 6 is an explanatory diagram (part 1) illustrating another example of the magnetic needle member.
  • FIG. 7 is an explanatory diagram (part 2) illustrating another example of the magnetic needle member.
  • FIG. 8 is an explanatory diagram (part 3) illustrating another example of the magnetic needle member.
  • FIG. 9 is an explanatory diagram (part 4) illustrating another example of the magnetic needle member.
  • FIG. 10 is a perspective view showing a usage state of the compass according to the present invention.
  • FIG. 1 shows an exploded perspective view of a compass according to the present invention
  • FIG. 2 shows an assembled state of the compass.
  • the compass magnet 100 (see FIG. 10) includes a magnetic needle member 4 and a magnetic needle member 4 in a casing made up of a bottomed cylindrical case 2 having a shallow bottom and a cap 9 that closes the top opening.
  • the brake conductor 7 is accommodated in a schematic manner.
  • the case 2 is a bottomed cylindrical resin molded product (material is, for example, ABS) having a peripheral side portion 21 and a bottom portion 22, and a support shaft 3 described later is fixed in a vertical posture at the center of the bottom portion 22.
  • a boss 23 for projecting is provided.
  • the cap 9 is an annular resin molded product (material is ABS, for example) that is slightly larger than the case 2, and the upper portion thereof is edged by an annular window frame 91 to form a circular opening 94.
  • a resin-made transparent window plate 8 is fitted into the circular opening 94.
  • Reference numerals 92 and 93 denote locking holes that engage with claw portions 121 and 131 of locking pieces 12 and 13 of the mounting tool 1 described later.
  • the mounting tool 1 is for mounting the casing of the compass magnet 100 on the band 130 of the wristwatch 110, and includes a pedestal 11 on which the case 2 is placed, and a watch.
  • the left and right L-shaped portions 14 and 15 forming the left and right slits 141 and 151 into which the band 130 is inserted are integrated with the left and right locking pieces 12 and 13 for holding the assembly of the case 2 and the cap 9.
  • It is a molded resin product (material is ABS or PC, for example).
  • the brake conductor 7 is made of a non-magnetic electrically conductive material (for example, pure gold, pure silver, pure copper, pure aluminum, or an alloy thereof), and is disposed in the vicinity of the magnetic needle member 4 to be described later. Part and / or at least a part of the magnetic flux generated from the second end, and brakes the rotation of the magnetic needle member 4 through the electromagnetic induction action.
  • a disk shape in Patent Document 1 can be employed. In this example, it is set as the shape which has the annular part surrounding the circumference
  • the “shape having an annular portion” is intended to include not only the illustrated annular shape but also a bottomed annular shape similar to the case 2.
  • the magnetic needle member 4 indicates the geomagnetic direction in response to the geomagnetism and has been conventionally constituted by one magnet (permanent magnet). However, in the present invention, the two ferromagnetic magnets are used. It is configured using.
  • various known magnets can be used as the ferromagnetic magnet, and examples of typical ferromagnetic magnets include ferrite magnets, alnico magnets, neodymium magnets, and samarium / cobalt magnets. be able to.
  • the magnetic needle member 4 of the present invention includes two ferromagnetic magnets composed of a first ferromagnetic magnet 42 and a second ferromagnetic magnet 43.
  • the first ferromagnetic magnet 42 is closer to the first end than the rotation support point, and the first polarity magnetic pole (for example, the N pole) is directed in the extending direction of the first end.
  • the second ferromagnetic magnet 43 is closer to the second end than the rotation support point, and the second polarity magnetic pole (for example, the S pole) is directed in the extending direction of the second end.
  • the first ferromagnetic magnet 42 is closer to the first end than the rotation support point
  • the first polarity magnetic pole for example, the N pole
  • the second polarity magnetic pole for example, the S pole
  • a high permeability is provided between the second polarity magnetic pole (for example, S pole) of the first ferromagnetic magnet 42 and the first polarity magnetic pole (for example, N pole) of the second ferromagnetic magnet 43.
  • Magnetic conduction is achieved via a magnetic path made of a magnetic material.
  • typical high magnetic permeability materials include pure iron, iron-based alloy, carbon steel, silicon steel, permalloy, and permendur. And so on.
  • the magnetic needle member 4 includes a magnetic base piece 41 made of a high permeability material and having a length corresponding to almost the entire length of the magnetic needle member 4.
  • the magnetic base piece 41 has a substantially rhombus shape, and a central hole 413 that defines a rotation support point is opened at a midpoint in the longitudinal direction.
  • the first ferromagnetic magnet 41 and the second ferromagnetic magnet 43 are both ferromagnetic materials having a minute length (1 mm to 2 mm) that is sufficiently shorter than the length of the magnetic base piece 41 (16 mm to 17 mm). It is a body magnet.
  • the first minute long ferromagnetic magnet 42 has a first polarity magnetic pole (for example, N pole) at the first end of the magnetic base piece 41 (41A, 41B). The first end portion is fixed in an extending direction.
  • the second minute long ferromagnetic magnet 43 has a second polarity magnetic pole (for example, an S pole) at the second end of the magnetic base piece 41 (41A, 41B) and an extension direction of the second end. It is fixed in the posture toward the head.
  • the gap between the second polarity magnetic pole (for example, S pole) of the first ferromagnetic magnet 42 and the first polarity magnetic pole (for example, N pole) of the second ferromagnetic magnet 43 is Then, the magnetic conduction is achieved via the magnetic base piece 41 (41A, 41B) that functions as a magnetic path.
  • reference numeral 41A is a magnetic base piece made of a high magnetic permeability material that is not magnetic
  • reference numeral 41B is a magnetic base piece made of a high carbon steel magnet that is a magnetic high permeability material.
  • the magnetic base piece 41 made of a high magnetic permeability material either a non-magnetic element 41A or a magnetic element 41B may be used.
  • the first minute long ferromagnetic magnet 42 and the second minute long ferromagnetic magnet 43 are both magnetic base pieces magnetic base pieces. It fixes to the front-end
  • reference numeral 5 denotes a circular thin plate-like display panel on which the pointer display 52 is drawn, and is formed of a nonmagnetic material (for example, plastic, aluminum, brass, etc.).
  • the display board 5 is overlaid on the pointer member 4 and fixed to the magnetic needle member 4 with an appropriate adhesive.
  • Reference numeral 6 denotes a bearing member, and a substantially conical space is formed in the bearing member, as shown in FIG.
  • the body 61 of the bearing member 6 passes through the center hole 51 of the display panel 5 and the center hole 413 of the magnetic base piece 41 in order, and is inserted until the flange 62 abuts. And the like is fixed through a press agent, press fit, etc.
  • Reference numeral 3 is a support shaft that provides the center of rotation, and its base 31 is inserted and fixed in the center hole of the boss 23 that protrudes from the center of the case bottom plate 22.
  • the assembly formed by integrating the magnetic needle member 4, the display board 5 and the bearing member 6, as shown in FIG. 2 (b), is attached to the upper end of the sharpened portion 32 of the support shaft 3.
  • the two ferromagnetic magnets composed of the first ferromagnetic magnet 42 and the second ferromagnetic magnet 43 are magnetized via a magnetic path made of a high permeability material. Therefore, the two ferromagnetic magnets function as substantially one magnet extending over almost the entire length of the magnetic needle member 4. Therefore, the two main magnetic poles (N pole and S pole) having different polarities are the first end (the right end in FIG. 4) and the second end (the left side in FIG. 4) of the magnetic needle member 4.
  • the magnetic pole appearing at the first end of the magnetic needle member 4 is the magnetic pole (N pole) of the first polarity of the first ferromagnetic magnet 42 and appears at the second end of the magnetic needle member 4. Since the magnetic pole is the magnetic pole of the second polarity (S pole) of the second ferromagnetic magnet 43, the magnetic poles of different polarity (S pole, N pole) of the ferromagnetic magnet are immediately adjacent to the two magnetic poles. Therefore, most of the large amount of magnetic flux ( ⁇ 1 + ⁇ 2 or ⁇ 1 + ⁇ 3) appearing at the first end and the second end of the magnetic needle member 4 is in the magnetic pole located at the opposite end.
  • the range over which the strong magnetic field is applied in the vicinity of both ends of the magnetic needle member 4 is minimized by setting the ferromagnetic magnets (42, 43) to a minute length (dots).
  • the magnetic base piece 41 itself that functions as a magnetic path also functions as a support for supporting the two ferromagnetic magnets 42 and 43, and a magnetic needle member Therefore, the size and shape of the magnetic base piece 41 side are changed while the size and shape of the first and second minute long ferromagnetic magnets 42 and 43 remain unchanged.
  • the magnetic base piece 41 has a first end (right side in the figure) having a first polarity (N pole) and a second end.
  • the high-carbon steel magnet (41B) which is a magnetized normal magnetic magnet so that the end side (left side in the figure) has the second polarity (S pole), corresponds to the magnetic strength of the normal magnetic magnet.
  • the magnetic strength at both ends of the magnetic needle member is enhanced, while the magnetic flux ( ⁇ 1) that normally passes from one end of the magnetic magnet to the other end is affected by the magnetic fields of the two ferromagnetic magnets 42 and 43, Since the spread to the periphery is suppressed, the directivity and the braking effect can be enhanced while reducing the influence on the surrounding electronic devices and magnetic cards.
  • the first minute long ferromagnetic magnet 42 and the second minute long ferromagnetic magnet 43 are both at the tip of the magnetic base piece 41. Since it is fixed in such a posture that it protrudes forward from the tip portion, it can be said that the posture is close to a cantilever state, so that the magnets on the side surfaces along the extending direction of the ferromagnetic magnets 42 and 43 are magnetic. Since it becomes difficult for the base piece 41 to be in close contact, a reduction in magnetic strength of the magnetic pole due to a magnetic short circuit between the magnetic poles through the magnetic base piece 41 is avoided.
  • reference numerals 411 and 412 denote positioning grooves for attaching the first and second ferromagnetic magnets 42 and 43, respectively.
  • FIGS. 1 to 3 Next, the operation of the magnetic needle member 4 of the present invention shown in FIGS. 1 to 3 will be described with reference to FIG. 5 in comparison with the operation of the conventional magnetic needle member.
  • the first conventional example shown in FIG. 5 (a) uses one high carbon steel magnet as the magnetic needle member 4A.
  • the magnetic flux ⁇ 11 passing through both ends of the magnetic needle member 4A is very close to the periphery.
  • the second conventional example shown in FIG. 5B uses a single ferromagnetic magnet as the magnetic needle member 4B.
  • a large amount of magnetic flux ⁇ 12 passing through both ends of the magnetic needle member 4B is large. Since the portion interlinks with the braking conductor 7, a good braking effect can be obtained, but a large amount of magnetic flux leaks to the periphery, which may adversely affect nearby electronic devices and magnetic cards.
  • the magnetic strength in the surrounding environment is suppressed to 2 mT or less, which is the operating environment condition of the movement of the watch, while satisfying the good braking effect and directivity. It was confirmed that
  • the two ferromagnetic magnets 42 and 43 are fixed to both ends of the magnetic base piece 41 so as to protrude from the tip of the magnetic base piece 41.
  • the mounting structure of the two ferromagnetic magnets 42 and 43 is not limited to this.
  • FIG. 6 shows an example in which two minute long ferromagnetic magnets 42 and 43 are overlapped on one side of the magnetic base piece 41 and joined to both ends of the magnetic base piece 41. Even with such a mounting structure, the magnetic strength of the two very long ferromagnetic magnets 42 and 43 is appropriately selected to appropriately compensate for the decrease in magnetic strength due to magnetic pole short-circuiting by the magnetic base piece 41, thereby providing directivity. In addition, it is possible to suppress the leakage magnetic flux while maintaining a good braking effect.
  • FIG. 7 shows an example in which two minute long ferromagnetic magnets 42 and 43 are overlapped on both sides of the magnetic base piece 41 and joined to both ends of the magnetic base piece 41. According to such a mounting structure, the decrease in the magnetic strength due to the magnetic pole short-circuit by the magnetic base piece 41 is compensated by a number as the two pairs of very long ferromagnetic magnets 421, 422 or 431, 433, thereby providing directivity and Leakage magnetic flux can be suppressed while maintaining a good braking effect.
  • FIG. 8 shows an example in which the two ferromagnetic magnets 42 and 43 are replaced with somewhat longer ferromagnetic magnets.
  • the magnetic strengths of the ferromagnetic magnetic fluxes 423 and 433 are increased.
  • the leakage magnetic flux can be suppressed while maintaining the directivity and the braking effect satisfactorily.
  • FIG. 9 shows an example in which the magnetic base piece 41 is omitted by connection.
  • an azimuth flux can be attached to the arm adjacent to the electronic wristwatch.
  • a compass that has a good braking effect and good geomagnetic directivity, and that does not adversely affect a nearby electronic device or a magnetic card.

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)

Abstract

[Problème] Proposer une boussole qui a un excellent effet de freinage et une excellente directivité géomagnétique, et qui en outre n'a pas d'effet magnétique indésirable sur les dispositifs électroniques proches, les cartes magnétiques et les dispositifs de même type. [Solution] Selon la présente invention, un élément d'aiguille magnétique est composé de deux aimants ferromagnétiques comprenant un premier aimant ferromagnétique et un second aimant ferromagnétique. Le premier aimant ferromagnétique est disposé plus près d'un premier côté d'extrémité que d'un point de support, et présente une orientation dans laquelle un pôle magnétique ayant une première polarité est orienté dans la direction d'extension de la première extrémité. Le second aimant ferromagnétique est disposé plus près d'un second côté d'extrémité que du point de support, et présente une orientation dans laquelle un pôle magnétique ayant une seconde polarité est orienté dans la direction d'extension de la seconde extrémité. En outre, un pôle magnétique ayant la seconde polarité du premier aimant ferromagnétique est magnétiquement connecté à un pôle magnétique ayant la première polarité du second aimant ferromagnétique, par l'intermédiaire d'un chemin de guidage de magnétisme qui est constitué d'un matériau ayant une perméabilité magnétique élevée.
PCT/JP2016/057996 2016-03-14 2016-03-14 Boussole WO2017158689A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/057996 WO2017158689A1 (fr) 2016-03-14 2016-03-14 Boussole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/057996 WO2017158689A1 (fr) 2016-03-14 2016-03-14 Boussole

Publications (1)

Publication Number Publication Date
WO2017158689A1 true WO2017158689A1 (fr) 2017-09-21

Family

ID=59852120

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/057996 WO2017158689A1 (fr) 2016-03-14 2016-03-14 Boussole

Country Status (1)

Country Link
WO (1) WO2017158689A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6110168Y2 (fr) * 1979-06-12 1986-04-02
JPH0393722U (fr) * 1990-01-12 1991-09-25
JP3098601U (ja) * 2003-06-16 2004-03-11 東京磁石工業株式会社 リストコンパス
US6708415B1 (en) * 2002-06-03 2004-03-23 Eugene Victor Osten Magnetic compass structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6110168Y2 (fr) * 1979-06-12 1986-04-02
JPH0393722U (fr) * 1990-01-12 1991-09-25
US6708415B1 (en) * 2002-06-03 2004-03-23 Eugene Victor Osten Magnetic compass structure
JP3098601U (ja) * 2003-06-16 2004-03-11 東京磁石工業株式会社 リストコンパス

Similar Documents

Publication Publication Date Title
US10018967B2 (en) Magnetic and/or electrostatic pivot
US4243899A (en) Linear motor with ring magnet and non-magnetizable end caps
US4779314A (en) Magnetic fastener
US7852621B2 (en) Computer with a rotary module driven by magnetic forces
JP3603406B2 (ja) 磁気検出センサおよびその製造方法
MXPA04001694A (es) Dispositivo magnetico conmutable.
US9699565B2 (en) Loudspeaker using contour field hard magnet poles and yoke construction
AU2003210947A1 (en) Transducer motor/generator assembly
JP2002538450A (ja) 磁気感受性プローブ位置センサ
JP3257681B2 (ja) 留め具
WO2007094844A3 (fr) générateur de champ magnétique IRM ouvert
CN113873381A (zh) 一种振动装置、骨传导耳机、可穿戴设备及智能硬件设备
PL340945A1 (en) Electromagnetic release
US20170122781A1 (en) Rotation detecting device
JP3755071B2 (ja) 面移動アクチュエータ
US10823584B2 (en) Intelligent device having detachable bodies
WO2017158689A1 (fr) Boussole
JP2002156247A (ja) 回転角度センサ
JPH11153404A (ja) 回転角度センサ
JP2016136497A (ja) 回転入力装置
US10608516B2 (en) Power generation device
CN219626416U (zh) 一种显露型磁力增强式磁铁组件
US11525661B2 (en) Magnetic unit, position detection apparatus, and magnetic member
JPH0234621Y2 (fr)
JPS5832389Y2 (ja) 動電型変換器の駆動系

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16894313

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 16894313

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP