WO2009131039A1 - Indicating instrument - Google Patents

Indicating instrument Download PDF

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Publication number
WO2009131039A1
WO2009131039A1 PCT/JP2009/057546 JP2009057546W WO2009131039A1 WO 2009131039 A1 WO2009131039 A1 WO 2009131039A1 JP 2009057546 W JP2009057546 W JP 2009057546W WO 2009131039 A1 WO2009131039 A1 WO 2009131039A1
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WO
WIPO (PCT)
Prior art keywords
pointer
magnet
instrument device
indicating instrument
display
Prior art date
Application number
PCT/JP2009/057546
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French (fr)
Japanese (ja)
Inventor
英樹 増田
Original Assignee
日本精機株式会社
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Filing date
Publication date
Application filed by 日本精機株式会社 filed Critical 日本精機株式会社
Publication of WO2009131039A1 publication Critical patent/WO2009131039A1/en

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    • 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
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/02—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using mechanical means
    • G01D5/06—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using mechanical means acting through a wall or enclosure, e.g. by bellows, by magnetic coupling
    • B60K35/215—
    • B60K35/60—
    • 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
    • G01D13/00—Component parts of indicators for measuring arrangements not specially adapted for a specific variable
    • G01D13/22—Pointers, e.g. settable pointer
    • B60K2360/33—
    • 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 indicating instrument device for indicating an indicator portion of a display board with a pointer.
  • an indicating instrument device that indicates an indicator part of a dial (display board) with a pointer.
  • Such an indicating instrument device directly fixes the pointer on a rotating shaft of a pointer driving means such as a stepping motor, and rotates the pointer in conjunction with the rotational driving of the pointer driving means to indicate the indicator section. Is.
  • the applicant of the present application provides a first magnet for the pointer in Patent Document 2 and a second magnet for the pointer driving means to obtain the magnetic force (attraction force) of the first and second magnets. Suggests an indicating instrument device that rotates the pointer in conjunction with the rotational drive of the pointer driving means. According to such a configuration, it is not necessary to form a through hole in the display board, and the dial can be easily and inexpensively manufactured.
  • the present invention has been made in view of the above-described problems, and in an indicating instrument device that fixes a pointer and a pointer driving means by a magnetic attraction force, a sufficient attraction force is obtained to suppress overshoot and pulsation of the pointer.
  • An object of the present invention is to provide an indicating instrument device that can perform the above-described operation.
  • the present invention provides a display plate, a pointer provided on the front surface side of the display plate, a pointer driving means provided on the rear surface side of the display plate for rotating the pointer
  • the display instrument has a translucent first display panel and a second display panel disposed behind the first display panel with a space therebetween.
  • a shaft portion having a main shaft that passes through the first display plate and the pointer is disposed and fixed; and a main bearing portion that is disposed on the first display plate and rotatably holds the main shaft;
  • a first magnet provided on the main shaft so as to be positioned between the first display plate and the second display plate, and a second provided on the pointer driving means so as to face the first magnet.
  • a rotation drive of the pointer drive means by the attractive force of the first and second magnets Conjunction with, characterized in that rotating.
  • a yoke is arranged on the surface of the first magnet that is not opposed to the second magnet.
  • the first and second magnets are characterized in that a plurality of S poles and N poles are alternately magnetized.
  • first and second magnets are characterized in that two poles are magnetized on opposite surfaces.
  • the pointer is characterized by including a light receiving unit for receiving illumination light emitted from the rear of the pointer to make the pointer shine.
  • the illumination means for emitting the illumination light is arranged on the first display board.
  • a bearing portion joined to a shaft portion of the pointer driving means is provided, and the second magnet is provided in the bearing portion.
  • the second magnet is formed integrally with the bearing portion.
  • the second display board includes a variable display element including a variable display unit instructed by the pointer.
  • the present invention relates to an indicating instrument device that fixes a pointer and a pointer driving means by a magnetic attraction force, and can obtain a sufficient attraction force to suppress overshoot and pulsation of the pointer. .
  • the front view which shows 1st embodiment of this invention The principal part expanded sectional view which shows 1st embodiment same as the above.
  • produces when the rotation gap arises between the 1st, 2nd magnets in 2nd embodiment same as the above, and the distance between 1st, 2nd magnets.
  • 1 is a housing.
  • the housing 1 has a turning member and a case body, and stores three indicator meters, that is, a speedometer 2, a fuel gauge 3, and a water temperature gauge 4.
  • the speedometer 2 is larger than the fuel gauge 3 and the water temperature gauge 4 and is disposed between the fuel gauge 2 and the water temperature gauge 4.
  • the speedometer 2 has a display board 21 and a pointer 22.
  • the fuel gauge 3 and the water temperature gauge 4 have dial plates 31 and 41 and pointers 32 and 42, respectively.
  • the dial plates 31 and 41 are formed by printing a light shielding portion on a substrate made of a translucent resin (for example, polycarbonate) except for the indicator portions 3a and 4a.
  • the hands 32 and 42 are rotated by a stepping motor (not shown) to indicate the indicator portions 3a and 4a of the dial plates 31 and 41.
  • FIG. 2 is an enlarged cross-sectional view of the main part.
  • the speedometer 2 includes a display board 21, a pointer 22, a shaft portion 23, a bearing portion 24, and a stepping motor 25.
  • Reference numeral 26 denotes a circuit board, and a stepping motor 25 is mounted on the circuit board 26.
  • the display board 21 is composed of a translucent substrate 21a as a first display board and a liquid crystal display element (variable display element) 21b as a second display board.
  • the translucent substrate 21a is made of a translucent resin (for example, acrylic or polycarbonate), and is provided with a shaft portion to be described later for rotatably holding the pointer 22.
  • a translucent resin for example, acrylic or polycarbonate
  • the liquid crystal display element 21b is obtained by bonding polarizing plates to both surfaces of a liquid crystal cell in which liquid crystal is sealed in a pair of translucent substrates on which a transparent electrode film is formed, and is, for example, a dot matrix type liquid crystal display element. .
  • the liquid crystal display element 21b can change the display content, and can display at least the indicator portion 2a and the character portion 2b.
  • the liquid crystal display element 21b is disposed behind the translucent substrate 21a with a predetermined interval.
  • the pointer 22 has a pointer main body 22a and a pointer cap 22b, and indicates the indicator portion 2a displayed on the liquid crystal display element 22a.
  • the pointer main body 22a is made of a translucent resin such as polycarbonate, and a pointer cap 22b is fitted in the center of rotation.
  • the pointer main body 22a includes a light receiving portion 22a1 for receiving illumination light from an LED (illuminating means) 27 disposed on the translucent substrate 21a and causing the pointer main body 22a to shine.
  • the pointer cap 22b is formed by forming a non-translucent resin such as an ABS resin into a substantially cylindrical shape.
  • an insertion portion 22b1 for inserting a later-described main shaft 23a is provided at the center of the pointer cap 22b.
  • the shaft portion 23 is disposed on the translucent substrate 21a, and includes a main shaft 23a that rotatably supports the pointer 22, a main bearing portion 23b that fixes the main shaft 23a to the translucent substrate 21a, and a main shaft.
  • the main shaft 23a is a substantially columnar member provided so as to pass through a hole 21a1 formed at a substantially central portion of the translucent substrate 21a and protrude forward and rearward of the translucent substrate 21a.
  • the pointer 22 is fixed to the front surface side of the conductive substrate 21a, and becomes the center of rotation of the pointer 22.
  • the main bearing portion 23b is disposed in the hole portion 21a1 of the translucent substrate 21a, has a hole portion 23b1 into which the main shaft 23a is inserted at the center portion, and rotatably holds the main shaft 23a.
  • a first magnet 23c and a first yoke 23d are provided at a portion of the main shaft 23a protruding rearward of the light transmitting substrate 21a so as to be positioned between the light transmitting substrate 21a and the liquid crystal display element 21b. It has been.
  • the first magnet 23c and the first yoke 23d are each formed in a ring shape, and are disposed and fixed to the main shaft 23a via a magnet receiving portion 23e.
  • the magnet receiver 23e has a hole 23e1 into which the main shaft 23a is inserted.
  • the main shaft 23a, the main bearing portion 23b, and the magnet receiving portion 23e constituting the shaft portion 23 are made of a nonmagnetic material such as aluminum or brass.
  • the first magnet 23c is formed in a ring shape, and a plurality of S poles and N poles are alternately magnetized as shown in FIG. In this embodiment, four poles are magnetized.
  • the first magnet 23c attracts each other with a second magnet 24a described later.
  • the first magnet 23c is made of, for example, a neodymium-iron-boron rare earth magnet or a samarium-cobalt rare earth magnet.
  • the shape of the first magnet 23c may be, for example, a circular shape.
  • the first yoke 23d is formed in a ring shape and is provided on the surface (non-facing surface) side of the first magnet 23c that does not face the second magnet 24a.
  • the first yoke 23d constitutes a magnetic circuit that suppresses leakage magnetic flux from the non-opposing surface side of the first magnet 23c and improves magnetic efficiency.
  • the bearing portion 24 has a second magnet 24a and a second yoke 24b, and is fitted to the rotating shaft 25a of the stepping motor 25.
  • the pointer driving means in this embodiment includes a bearing portion 24 and a stepping motor 25.
  • the second magnet 24a is disposed at a position facing the first magnet 23c via the liquid crystal display element 21b so as to be paired with the first magnet 23c.
  • the second magnet 24a is also formed by alternately magnetizing a plurality of S and N poles in the same manner as the first magnet 23c.
  • a method of providing the second magnet 24a a method may be used in which the bearing portion 24 is formed of a plastic magnet and a portion facing the first magnet 23c is magnetized, or the bearing portion 24 is formed.
  • the second magnet 24a may be provided as a separate member and integrally formed by insert molding or outsert molding. In that case, the second magnet 24a is formed of the same material as the first magnet 23c.
  • the second yoke 24b is provided on the surface (non-facing surface) side that does not face the first magnet 23c of the second magnet 24a.
  • the second yoke 24b constitutes a magnetic circuit that suppresses leakage magnetic flux from the non-opposing surface of the second magnet 24a and improves magnetic efficiency.
  • the first magnet 23c is provided on the pointer 22 side, and the second magnet 24a is fixed to the rotating shaft 24a of the stepping motor 25 so as to face the first magnet 23c via the liquid crystal display element 21b. Since the first magnet 23c and the second magnet 24a attract each other by magnetic force, the main shaft 23 is rotated in conjunction with the rotational drive of the stepping motor 25, and the pointer 22 is rotated. Can be moved. Therefore, it is not necessary to form a through hole in the liquid crystal display element 21b of the display panel 21 as in the conventional method of directly fixing the pointer to the stepping motor, and the display panel 21 can be manufactured at a relatively low cost.
  • the distance from the second magnet 24a can be shortened compared to providing the first magnet 23c on the pointer 22.
  • the space for providing the first magnet 23c in the pointer 22 is not required, the shape and size of the pointer 22 are not limited, and the degree of freedom in design can be improved.
  • the first magnet 23c is formed in a ring shape in which a plurality of N poles and S poles are alternately magnetized, and is disposed so as to surround the main shaft 23a that is the center of rotation of the pointer 22, thereby rotating the pointer 22
  • An attractive force with the second magnet 24a can be obtained with respect to the entire central portion, and overshoot and pulsation of the pointer 22 can be suppressed.
  • the magnetic efficiency is improved, and even when the same first magnet 23c is used, the attractive force is further increased. It becomes possible to strengthen.
  • the first and second magnets 23c and 24a are permanent magnets.
  • the second magnet 24a may be an electromagnet.
  • the variable display element may be an organic EL element in addition to the liquid crystal display element 21b, and may be a segment type in addition to the dot matrix type.
  • the display plate may include a fixed display element in which a light-shielding portion is printed and formed on a translucent resin and a fixed display portion indicated by the pointer 22 is formed.
  • the illumination means for illuminating the pointer 22 is not limited to the LED 27.
  • an organic EL element is applied to the display plate 21, and light from the organic EL element is emitted toward the light receiving unit 22a1. May be.
  • the stepping motor 25 is provided as the pointer driving means, it goes without saying that, for example, a cross coil type movement can be used instead of the stepping motor 25.
  • the second embodiment is different from the first embodiment in that the first and second magnets 23c and 24a are two-pole magnetized on the opposing surfaces.
  • FIG. 4 shows the first magnet 23c. 4A is a view of the first magnet 23c as viewed from the side facing the second magnet 24a, and FIG. 4B is a view of the first magnet 23c as viewed from the side (curved surface side). It is a figure.
  • the first magnet 23c is two-pole magnetized on the facing surface.
  • the first magnet 23c only needs to have two poles magnetized on the opposing surface, and performs different two-pole magnetization on both planes as shown in FIG. There may be.
  • the second magnet 24a is also two-pole magnetized on the surface facing the first magnet 23c in the same manner as the first magnet 23c.
  • FIG. 6 is a diagram showing the relationship between the rotational torque due to the attractive force generated when a rotational deviation occurs between the first and second magnets 23c and 24a and the distance between the first and second magnets 23c and 24a. It is.
  • T1 shows the characteristic when dipole magnetization is performed on the opposing surface
  • T2 shows the characteristic when quadrupolar magnetization is applied on the opposing surface
  • T3 shows the case when 8-pole magnetization is applied on the opposing surface
  • T4 indicates the characteristics when 16 poles are magnetized on the opposing surface.
  • the present inventor has found that the characteristic T1 due to dipole magnetization shows the highest attraction torque when the distance between the first and second magnets 23c, 24a is increased.
  • a liquid crystal display element is provided between the first and second magnets 23c and 24a. Since a certain distance is required between the first and second magnets 22c and 23a due to the arrangement of 21b, the first and second magnets 22c and 23a are magnetized in two poles on the opposing surfaces. In such an indicating instrument device, a high suction torque capable of rotating the pointer 22 can be obtained.
  • the present invention is suitable for an indicating instrument device that indicates an indicator portion of a display board with a pointer.

Abstract

Provided is an indicating instrument which can limit overshoot or pulsation of a pointer by attaining a sufficient attraction. In an indicating instrument, an indication board (21) has a translucent first indication board (21a) and a second indication board (21b) arranged in the rear of the first indication board (21a) with a space between one another. The indication board (21) comprises a shaft portion (23) provided with a main shaft (23a) penetrating through the first indication board (21a) and having a pointer (22) fixedly arranged and a main shaft receiving portion (23b) arranged on the first indication board (21a) and holding the main shaft (23a) rotatably, a first magnet (23c) so provided on the main shaft (23a) as to be located between the first indication board (21a) and the second indication board (21b), and a second magnet (24a) so provided on a pointer drive means as to face the first magnet (23c). The pointer (22) is rotated by attraction of the first and second magnets (23c, 24a) in conjunction with rotary driving of the pointer drive means.

Description

指示計器装置Indicator device
　本発明は、表示板の指標部を指針で指示する指示計器装置に関するものである。 The present invention relates to an indicating instrument device for indicating an indicator portion of a display board with a pointer.
　従来より、文字板（表示板）の指標部を指針で指示する指示計器装置がある。斯かる指示計器装置は、ステッピングモータ等の指針駆動手段の回動軸に前記指針を直接固定させ、この指針駆動手段の回転駆動に連動して前記指針を回動させて前記指標部を指示するものである。 Conventionally, there is an indicating instrument device that indicates an indicator part of a dial (display board) with a pointer. Such an indicating instrument device directly fixes the pointer on a rotating shaft of a pointer driving means such as a stepping motor, and rotates the pointer in conjunction with the rotational driving of the pointer driving means to indicate the indicator section. Is.
　しかしながら、かかる構成においては前記回動軸を貫通させるための貫通孔を前記文字板に形成する打抜き工程が必要になり、前記文字板の製造が煩雑になるため、前記文字板を安価に製造できないという問題を有していた。特に、特許文献１に開示されるように液晶表示素子等の可変表示素子を文字板とした場合、可変表示素子のガラス基板に貫通孔を形成しなければならないため、可変表示素子の製造コストが高くなるという問題を有していた。
実開平３－４４６２４号公報 特開２００３－１６１６５０号公報 However, in such a configuration, a punching process for forming a through hole for penetrating the rotating shaft in the dial plate is required, and the manufacture of the dial plate becomes complicated, so that the dial plate cannot be manufactured at low cost. Had the problem. In particular, when a variable display element such as a liquid crystal display element is used as a dial as disclosed in Patent Document 1, a through-hole must be formed in the glass substrate of the variable display element. Had the problem of becoming higher.
Japanese Utility Model Publication No. 3-44624 JP 2003-161650 A
　この問題に対し、本願出願人は、特許文献２にて指針に第一の磁石を設け、また、指針駆動手段に第二の磁石を設けて第一，第二の磁石の磁力（吸引力）によって前記指針駆動手段の回転駆動に連動させて前記指針を回転させる指示計器装置を提案している。かかる構成によれば、表示板に貫通孔を形成する必要がなく、容易かつ安価に文字板を製造することが可能となる。 In order to solve this problem, the applicant of the present application provides a first magnet for the pointer in Patent Document 2 and a second magnet for the pointer driving means to obtain the magnetic force (attraction force) of the first and second magnets. Suggests an indicating instrument device that rotates the pointer in conjunction with the rotational drive of the pointer driving means. According to such a configuration, it is not necessary to form a through hole in the display board, and the dial can be easily and inexpensively manufactured.
　しかしながら、特許文献２にて開示されるように単に前記指針に部分的に前記第一の磁石を配置するのみ（特許文献２においては前記第一の磁石が２個所配置されている）では、前記指針を固定する吸引力が不十分であり、前記指針を回転させて所定の指示位置を指示させる場合に前記指示位置を超えてしまうオーバーシュートが発生し、また、前記指針をステップ動作させる場合に前記指針の脈動を生じさせるおそれがあり、指示計器装置としては更なる改善の余地があった。 However, simply disposing the first magnet partially on the pointer as disclosed in Patent Document 2 (in Patent Document 2, two first magnets are disposed), When the suction force for fixing the pointer is insufficient, an overshoot that exceeds the indicated position occurs when the pointer is rotated to indicate a predetermined indicated position, and when the pointer is stepped There is a possibility of causing pulsation of the pointer, and there is room for further improvement as an indicating instrument device.
　本発明は、上述の問題に鑑みなされたものであり、磁石の吸引力によって指針と指針駆動手段とを固定する指示計器装置において、十分な吸引力を得て指針のオーバーシュートや脈動を抑制することが可能な指示計器装置を提供することを目的とする。 The present invention has been made in view of the above-described problems, and in an indicating instrument device that fixes a pointer and a pointer driving means by a magnetic attraction force, a sufficient attraction force is obtained to suppress overshoot and pulsation of the pointer. An object of the present invention is to provide an indicating instrument device that can perform the above-described operation.
　本発明は、前記課題を解決するため、表示板と、前記表示板の前面側に設けられた指針と、前記表示板の後面側に設けられ前記指針を回動させるための指針駆動手段と、を有する指示計器装置であって、前記表示板は、透光性の第一の表示板とこの第一の表示板の後方に間隔を空けて配設される第二の表示板とを有し、前記第一の表示板を貫通し前記指針が配設固定される主軸と前記第一の表示板に配設され前記主軸を回動可能に保持する主軸受け部とを有する軸部と、前記第一の表示板と前記第二の表示板との間に位置するように前記主軸に設けられる第一の磁石と、前記第一の磁石と対向するように前記指針駆動手段に設けられる第二の磁石と、を備え、前記第一，第二の磁石の吸引力によって前記指針を前記指針駆動手段の回転駆動に連動して回動させることを特徴とする。 In order to solve the above problems, the present invention provides a display plate, a pointer provided on the front surface side of the display plate, a pointer driving means provided on the rear surface side of the display plate for rotating the pointer, The display instrument has a translucent first display panel and a second display panel disposed behind the first display panel with a space therebetween. A shaft portion having a main shaft that passes through the first display plate and the pointer is disposed and fixed; and a main bearing portion that is disposed on the first display plate and rotatably holds the main shaft; A first magnet provided on the main shaft so as to be positioned between the first display plate and the second display plate, and a second provided on the pointer driving means so as to face the first magnet. A rotation drive of the pointer drive means by the attractive force of the first and second magnets Conjunction with, characterized in that rotating.
　また、前記第一の磁石の前記第二の磁石との非対向面側にヨークを配設してなることを特徴とする。 Further, a yoke is arranged on the surface of the first magnet that is not opposed to the second magnet.
　また、前記第一，第二の磁石は、Ｓ極及びＮ極が交互に複数着磁されてなることを特徴とする。 The first and second magnets are characterized in that a plurality of S poles and N poles are alternately magnetized.
　また、前記第一，第二の磁石は、互いの対向面に２極着磁されてなることを特徴とする。 Further, the first and second magnets are characterized in that two poles are magnetized on opposite surfaces.
　また、前記指針は、前記指針の後方から発せられる照明光を受光して前記指針を光輝させるための受光部を備えてなることを特徴とする。 Further, the pointer is characterized by including a light receiving unit for receiving illumination light emitted from the rear of the pointer to make the pointer shine.
　また、前記照明光を発する照明手段は、前記第一の表示板上に配設されてなることを特徴とする。 Further, the illumination means for emitting the illumination light is arranged on the first display board.
　また、前記指針駆動手段の軸部に接合される軸受け部を備え、前記第二の磁石は前記軸受け部に設けられてなることを特徴とする。 Further, a bearing portion joined to a shaft portion of the pointer driving means is provided, and the second magnet is provided in the bearing portion.
　また、前記第二の磁石は、前記軸受け部と一体的に形成されてなることを特徴とする。 Further, the second magnet is formed integrally with the bearing portion.
　また、前記第二の表示板は、前記指針に指示される可変表示部を備える可変表示素子を有してなることを特徴とする。 In addition, the second display board includes a variable display element including a variable display unit instructed by the pointer.
　本発明は、磁石の吸引力によって指針と指針駆動手段とを固定する指示計器装置に関するものであり、十分な吸引力を得て指針のオーバーシュートや脈動を抑制することが可能となるものである。 The present invention relates to an indicating instrument device that fixes a pointer and a pointer driving means by a magnetic attraction force, and can obtain a sufficient attraction force to suppress overshoot and pulsation of the pointer. .
本発明の第一の実施形態を示す正面図。The front view which shows 1st embodiment of this invention. 同上第一の実施形態を示す要部拡大断面図。The principal part expanded sectional view which shows 1st embodiment same as the above. 同上第一の実施形態に適用される第一の磁石を示す図。The figure which shows the 1st magnet applied to 1st embodiment same as the above. 本発明の第二の実施形態に適用される第一の磁石を示す図。The figure which shows the 1st magnet applied to 2nd embodiment of this invention. 同上第二の実施形態に適用される第一の磁石の別例を示す図。The figure which shows another example of the 1st magnet applied to 2nd embodiment same as the above. 同上第二の実施形態における第一，第二の磁石間に回転ズレが生じた際に発生する吸引力による回転トルクと第一，第二の磁石間の距離との関係を示す図。The figure which shows the relationship between the rotational torque by the attraction force which generate | occur | produces when the rotation gap arises between the 1st, 2nd magnets in 2nd embodiment same as the above, and the distance between 1st, 2nd magnets.
　２１　　表示板
　２１ａ　透光性基板（第一の表示板）
　２１ｂ　液晶表示素子（可変表示素子，第二の表示板）
　２２　　指針
　２２ａ　指針本体
　２２ａ１　受光部
　２２ｂ　指針キャップ
　２３　　軸部
　２３ａ　主軸
　２３ｂ　主軸受け部
　２３ｃ　第一の磁石
　２３ｄ　第一のヨーク
　２３ｅ　磁石受け部
　２４　　軸受け部
　２４ａ　第二の磁石
　２４ｂ　第二のヨーク
　２５　　ステッピングモータ
　２６　　回路基板
　２７　　ＬＥＤ（照明手段） 21 Display board 21a Translucent substrate (first display board)
21b Liquid crystal display element (variable display element, second display panel)
22 Pointer 22a Pointer body 22a1 Light receiving portion 22b Pointer cap 23 Shaft portion 23a Main shaft 23b Main bearing portion 23c First magnet 23d First yoke 23e Magnet receiving portion 24 Bearing portion 24a Second magnet 24b Second yoke 25 Stepping motor 26 Circuit board 27 LED (lighting means)
　以下、添付の図面に基いて本発明を車両用コンビネーションメータに応用した第一の実施形態を説明する。 Hereinafter, a first embodiment in which the present invention is applied to a vehicle combination meter will be described with reference to the accompanying drawings.
　図１において、１はハウジングである。ハウジング１は、見返し部材及びケース体を有し、３個の指示計器、即ち、速度計２，燃料計３及び水温計４を収納するものである。速度計２は、燃料計３及び水温計４よりも大きく、燃料計２と水温計４の間に配置されている。速度計２は、表示板２１及び指針２２を有している。また、燃料計３及び水温計４は、文字板３１，４１及び指針３２，４２を夫々有している。文字板３１，４１は、透光性樹脂（例えばポリカーボネート）からなる基板に指標部３ａ，４ａを除いて遮光部を印刷形成したものである。指針３２，４２はステッピングモータ（図示しない）により回動され、文字板３１，４１の指標部３ａ，４ａを指示する。 In FIG. 1, 1 is a housing. The housing 1 has a turning member and a case body, and stores three indicator meters, that is, a speedometer 2, a fuel gauge 3, and a water temperature gauge 4. The speedometer 2 is larger than the fuel gauge 3 and the water temperature gauge 4 and is disposed between the fuel gauge 2 and the water temperature gauge 4. The speedometer 2 has a display board 21 and a pointer 22. Further, the fuel gauge 3 and the water temperature gauge 4 have dial plates 31 and 41 and pointers 32 and 42, respectively. The dial plates 31 and 41 are formed by printing a light shielding portion on a substrate made of a translucent resin (for example, polycarbonate) except for the indicator portions 3a and 4a. The hands 32 and 42 are rotated by a stepping motor (not shown) to indicate the indicator portions 3a and 4a of the dial plates 31 and 41.
　図２は要部拡大断面図である。速度計２は、表示板２１，指針２２，軸部２３，軸受け部２４及びステッピングモータ２５を有している。また、２６は回路基板であり、この回路基板２６にステッピングモータ２５が搭載されている。 FIG. 2 is an enlarged cross-sectional view of the main part. The speedometer 2 includes a display board 21, a pointer 22, a shaft portion 23, a bearing portion 24, and a stepping motor 25. Reference numeral 26 denotes a circuit board, and a stepping motor 25 is mounted on the circuit board 26.
　表示板２１は、第一の表示板である透光性基板２１ａと、第二の表示板である液晶表示素子（可変表示素子）２１ｂとからなるものである。 The display board 21 is composed of a translucent substrate 21a as a first display board and a liquid crystal display element (variable display element) 21b as a second display board.
　透光性基板２１ａは、透光性樹脂（例えばアクリル、ポリカーボネート）からなり、指針２２を回動可能に保持するための後述する軸部が配設されるものである。 The translucent substrate 21a is made of a translucent resin (for example, acrylic or polycarbonate), and is provided with a shaft portion to be described later for rotatably holding the pointer 22.
　液晶表示素子２１ｂは、透明電極膜が形成された一対の透光性基板に液晶を封入した液晶セルの両面に偏光板を貼り合わせたものであって、例えばドットマトリクス型の液晶表示素子である。液晶表示素子２１ｂは、その表示内容を変更可能であって、少なくとも指標部２ａ及び文字部２ｂを表示可能なものである。また、液晶表示素子２１ｂは、透光性基板２１ａの後方に所定の間隔を空けて配設される。 The liquid crystal display element 21b is obtained by bonding polarizing plates to both surfaces of a liquid crystal cell in which liquid crystal is sealed in a pair of translucent substrates on which a transparent electrode film is formed, and is, for example, a dot matrix type liquid crystal display element. . The liquid crystal display element 21b can change the display content, and can display at least the indicator portion 2a and the character portion 2b. The liquid crystal display element 21b is disposed behind the translucent substrate 21a with a predetermined interval.
　指針２２は、指針本体２２ａと、指針キャップ２２ｂと、を有し、液晶表示素子２２ａにて表示される指標部２ａを指示するものである。 The pointer 22 has a pointer main body 22a and a pointer cap 22b, and indicates the indicator portion 2a displayed on the liquid crystal display element 22a.
　指針本体２２ａは、ポリカーボネート等の透光性樹脂からなるものであり、回転中心部には指針キャップ２２ｂが嵌め込まれている。また、指針本体２２ａは、透光性基板２１ａ上に配置されるＬＥＤ（照明手段）２７からの照明光を受光して指針本体２２ａを光輝させるための受光部２２ａ１を有する。 The pointer main body 22a is made of a translucent resin such as polycarbonate, and a pointer cap 22b is fitted in the center of rotation. The pointer main body 22a includes a light receiving portion 22a1 for receiving illumination light from an LED (illuminating means) 27 disposed on the translucent substrate 21a and causing the pointer main body 22a to shine.
　指針キャップ２２ｂは、例えばＡＢＳ樹脂等の非透光性樹脂を略筒状に形成してなるものである。また、指針キャップ２２ｂの中央部には、後述する主軸２３ａを挿入する挿入部２２ｂ１が設けられている。 The pointer cap 22b is formed by forming a non-translucent resin such as an ABS resin into a substantially cylindrical shape. In addition, an insertion portion 22b1 for inserting a later-described main shaft 23a is provided at the center of the pointer cap 22b.
　軸部２３は、透光性基板２１ａに配設されるものであり、指針２２を回動可能に支持する主軸２３ａと、主軸２３ａを透光性基板２１ａに固定する主軸受け部２３ｂと、主軸２３ａに設けられる第一の磁石２３ｃ及び第一のヨーク２３ｄと、を有する。 The shaft portion 23 is disposed on the translucent substrate 21a, and includes a main shaft 23a that rotatably supports the pointer 22, a main bearing portion 23b that fixes the main shaft 23a to the translucent substrate 21a, and a main shaft. A first magnet 23c and a first yoke 23d provided on the head 23a.
　主軸２３ａは、透光性基板２１ａの略中央部に形成される孔部２１ａ１を貫通して透光性基板２１ａの前方及び後方に突出するように設けられる略円柱状の部材であり、透光性基板２１ａの前面側に指針２２が固定され、指針２２の回転中心となる。 The main shaft 23a is a substantially columnar member provided so as to pass through a hole 21a1 formed at a substantially central portion of the translucent substrate 21a and protrude forward and rearward of the translucent substrate 21a. The pointer 22 is fixed to the front surface side of the conductive substrate 21a, and becomes the center of rotation of the pointer 22.
主軸受け部２３ｂは、透光性基板２１ａの孔部２１ａ１に配設されるものであり、中央部に主軸２３ａが挿入される孔部２３ｂ１を有し主軸２３ａを回転可能に保持する。 The main bearing portion 23b is disposed in the hole portion 21a1 of the translucent substrate 21a, has a hole portion 23b1 into which the main shaft 23a is inserted at the center portion, and rotatably holds the main shaft 23a.
　また、主軸２３ａの透光性基板２１ａの後方に突出する部位には、透光性基板２１ａと液晶表示素子２１ｂとの間に位置するように第一の磁石２３ｃ及び第一のヨーク２３ｄが設けられている。第一の磁石２３ｃ及び第一のヨーク２３ｄはそれぞれリング状に形成され、磁石受け部２３ｅを介して主軸２３ａに配設固定される。磁石受け部２３ｅは、主軸２３ａが挿入される孔部２３ｅ１を有する。なお、軸部２３を構成する主軸２３ａ，主軸受け部２３ｂ及び磁石受け部２３ｅは、例えばアルミや黄銅等の非磁性材料からなる。 In addition, a first magnet 23c and a first yoke 23d are provided at a portion of the main shaft 23a protruding rearward of the light transmitting substrate 21a so as to be positioned between the light transmitting substrate 21a and the liquid crystal display element 21b. It has been. The first magnet 23c and the first yoke 23d are each formed in a ring shape, and are disposed and fixed to the main shaft 23a via a magnet receiving portion 23e. The magnet receiver 23e has a hole 23e1 into which the main shaft 23a is inserted. The main shaft 23a, the main bearing portion 23b, and the magnet receiving portion 23e constituting the shaft portion 23 are made of a nonmagnetic material such as aluminum or brass.
　第一の磁石２３ｃは、リング状に形成され、図３に示すようにＳ極及びＮ極が交互に複数着磁されてなるものである。なお、本実施形態においては４極が着磁されている。第一の磁石２３ｃは、後述する第二の磁石２４ａと互いに吸引し合うものである。また、第一の磁石２３ｃは、例えばネオジム－鉄－ボロン系希土類磁石あるいはサマリウム－コバルト系希土類磁石からなる。また、第一の磁石２３ｃの形状は他に例えば円形状であってもよい。 The first magnet 23c is formed in a ring shape, and a plurality of S poles and N poles are alternately magnetized as shown in FIG. In this embodiment, four poles are magnetized. The first magnet 23c attracts each other with a second magnet 24a described later. The first magnet 23c is made of, for example, a neodymium-iron-boron rare earth magnet or a samarium-cobalt rare earth magnet. In addition, the shape of the first magnet 23c may be, for example, a circular shape.
　第一のヨーク２３ｄは、リング状に形成され、第一の磁石２３ｃの第二の磁石２４ａと対向しない面（非対向面）側に設けられるものである。第一のヨーク２３ｄは、第一の磁石２３ｃの前記非対向面側からの漏れ磁束を抑制し、磁気効率を向上させる磁気回路を構成する。 The first yoke 23d is formed in a ring shape and is provided on the surface (non-facing surface) side of the first magnet 23c that does not face the second magnet 24a. The first yoke 23d constitutes a magnetic circuit that suppresses leakage magnetic flux from the non-opposing surface side of the first magnet 23c and improves magnetic efficiency.
　軸受け部２４は、第二の磁石２４ａと第二のヨーク２４ｂとを有し、ステッピングモータ２５の回動軸２５ａと嵌合されるものである。本実施形態における指針駆動手段は、軸受け部２４とステッピングモータ２５とからなるものである。 The bearing portion 24 has a second magnet 24a and a second yoke 24b, and is fitted to the rotating shaft 25a of the stepping motor 25. The pointer driving means in this embodiment includes a bearing portion 24 and a stepping motor 25.
　第二の磁石２４ａは、第一の磁石２３ｃと対になるように第一の磁石２３ｃに液晶表示素子２１ｂを介して対向する位置に配置される。なお、図示しないが、第二の磁石２４ａも第一の磁石２３ｃと同様にＳ極及びＮ極が交互に複数着磁されてなるものである。第二の磁石２４ａを設ける方法としては、軸受け部２４をプラスティックマグネットで形成し、第一の磁石２３ｃとの対向個所を着磁して形成する方法であってもよいし、また、軸受け部２４とは別部材で第二の磁石２４ａを設けインサート成形あるいはアウトサート成形によって一体的に形成する方法であってもよい。その場合、第二の磁石２４ａは第一の磁石２３ｃと同様の材料で形成される。 The second magnet 24a is disposed at a position facing the first magnet 23c via the liquid crystal display element 21b so as to be paired with the first magnet 23c. Although not shown, the second magnet 24a is also formed by alternately magnetizing a plurality of S and N poles in the same manner as the first magnet 23c. As a method of providing the second magnet 24a, a method may be used in which the bearing portion 24 is formed of a plastic magnet and a portion facing the first magnet 23c is magnetized, or the bearing portion 24 is formed. Alternatively, the second magnet 24a may be provided as a separate member and integrally formed by insert molding or outsert molding. In that case, the second magnet 24a is formed of the same material as the first magnet 23c.
　第二のヨーク２４ｂは、第二の磁石２４ａの第一の磁石２３ｃと対向しない面（非対向面）側に設けられるものである。第二のヨーク２４ｂは、第二の磁石２４ａの前記非対向面からの漏れ磁束を抑制し、磁気効率を向上させる磁気回路を構成する。 The second yoke 24b is provided on the surface (non-facing surface) side that does not face the first magnet 23c of the second magnet 24a. The second yoke 24b constitutes a magnetic circuit that suppresses leakage magnetic flux from the non-opposing surface of the second magnet 24a and improves magnetic efficiency.
　本実施形態は、指針２２側に第一の磁石２３ｃを設け、液晶表示素子２１ｂを介して第一の磁石２３ｃに対向するように第二の磁石２４ａをステッピングモータ２５の回動軸２４ａに固定される軸受け部２４に設けたことにより、第一の磁石２３ｃと第二の磁石２４ａとが磁力によって引きつけ合うことでステッピングモータ２５の回転駆動に連動して主軸２３を回転させ、指針２２を回動させることができる。従って、従来の指針をステッピングモータに直接固定する方法のように表示板２１の液晶表示素子２１ｂに貫通孔を形成する必要がなく、表示板２１を比較的安価に製造することができる。 In the present embodiment, the first magnet 23c is provided on the pointer 22 side, and the second magnet 24a is fixed to the rotating shaft 24a of the stepping motor 25 so as to face the first magnet 23c via the liquid crystal display element 21b. Since the first magnet 23c and the second magnet 24a attract each other by magnetic force, the main shaft 23 is rotated in conjunction with the rotational drive of the stepping motor 25, and the pointer 22 is rotated. Can be moved. Therefore, it is not necessary to form a through hole in the liquid crystal display element 21b of the display panel 21 as in the conventional method of directly fixing the pointer to the stepping motor, and the display panel 21 can be manufactured at a relatively low cost.
　さらに、第一の磁石２３ｃを指針２２よりも後方に位置する主軸２３ａに配設したことにより、指針２２に第一の磁石２３ｃを設けるよりも第二の磁石２４ａとの距離が短縮されることで指針２２を固定するための十分な吸引力を得て指針２２のオーバーシュートや脈動を抑制することが可能となる。また、指針２２に第一の磁石２３ｃを設けるためのスペースが不要となることから、指針２２の形状や大きさに制限が無く設計自由度を向上させることができる。 Furthermore, by disposing the first magnet 23c on the main shaft 23a located behind the pointer 22, the distance from the second magnet 24a can be shortened compared to providing the first magnet 23c on the pointer 22. Thus, it is possible to obtain a sufficient suction force for fixing the pointer 22 and suppress overshoot and pulsation of the pointer 22. In addition, since the space for providing the first magnet 23c in the pointer 22 is not required, the shape and size of the pointer 22 are not limited, and the degree of freedom in design can be improved.
　また、第一の磁石２３ｃをＮ極及びＳ極が交互に複数着磁されたリング状に形成し、指針２２の回転中心部である主軸２３ａを囲むように配置することによって、指針２２の回転中心部全体に対して第二の磁石２４ａとの吸引力を得ることができ、指針２２のオーバーシュートや脈動を抑制することが可能となる。また、第一の磁石２３ｃの第二の磁石２４ａとの非対向面側に第一のヨーク２２ｄを設けることによって磁気効率を向上させ、同じ第一の磁石２３ｃを用いた場合でもさらに吸引力を強めることが可能となる。 Further, the first magnet 23c is formed in a ring shape in which a plurality of N poles and S poles are alternately magnetized, and is disposed so as to surround the main shaft 23a that is the center of rotation of the pointer 22, thereby rotating the pointer 22 An attractive force with the second magnet 24a can be obtained with respect to the entire central portion, and overshoot and pulsation of the pointer 22 can be suppressed. Further, by providing the first yoke 22d on the non-opposing surface side of the first magnet 23c with the second magnet 24a, the magnetic efficiency is improved, and even when the same first magnet 23c is used, the attractive force is further increased. It becomes possible to strengthen.
　なお、第一，第二の磁石２３ｃ，２４ａは永久磁石であったが、例えば第二の磁石２４ａは電磁石であっても良い。また、可変表示素子としては、液晶表示素子２１ｂのほかに有機ＥＬ素子であっても良く、ドットマトリクス型のほかにセグメント型であっても良い。また、表示板としては、例えば透光性樹脂に遮光部を印刷形成して指針２２にて指示する固定表示部を形成した固定表示素子を有するものであってもよい。また、指針２２を照明する照明手段としては、ＬＥＤ２７に限定されるものではなく例えば表示板２１に有機ＥＬ素子を適用し、この有機ＥＬ素子からの光を受光部２２ａ１に向けて発する構成であってもよい。また、指針駆動手段としてステッピングモータ２５を備えるものであったが、ステッピングモータ２５に代えて、例えば、交差コイル型ムーブメントを用いることができることは言うまでもない。 The first and second magnets 23c and 24a are permanent magnets. However, for example, the second magnet 24a may be an electromagnet. The variable display element may be an organic EL element in addition to the liquid crystal display element 21b, and may be a segment type in addition to the dot matrix type. In addition, the display plate may include a fixed display element in which a light-shielding portion is printed and formed on a translucent resin and a fixed display portion indicated by the pointer 22 is formed. Further, the illumination means for illuminating the pointer 22 is not limited to the LED 27. For example, an organic EL element is applied to the display plate 21, and light from the organic EL element is emitted toward the light receiving unit 22a1. May be. Further, although the stepping motor 25 is provided as the pointer driving means, it goes without saying that, for example, a cross coil type movement can be used instead of the stepping motor 25.
　次に、本発明の第二実施形態について説明する。なお、前述の第一の実施形態と同一あるいは相当個所には同一符号を付してその詳細な説明は省略する。 Next, a second embodiment of the present invention will be described. In addition, the same code | symbol is attached | subjected to the part same as the above-mentioned 1st embodiment, or an equivalent part, and the detailed description is abbreviate | omitted.
　第二の実施形態が第一の実施形態と異なる点は、第一，第二の磁石２３ｃ，２４ａがそれぞれ対向面に２極着磁されていることである。図４は第一の磁石２３ｃを示すものである。それぞれ図４（ａ）は第一の磁石２３ｃを第二の磁石２４ａとの対向面側から見た図であり、図４（ｂ）は第一の磁石２３ｃを側方（曲面側）から見た図である。第一の磁石２３ｃは、前記対向面に２極着磁されている。なお、第二の実施形態においては、第一の磁石２３ｃは前記対向面に２極が着磁されていればよく、図５に示すように両平面にそれぞれ異なる２極着磁を行うものであってもよい。なお、図示しないが第二の磁石２４ａについても第一の磁石２３ｃと同様に第一の磁石２３ｃとの対向面に２極着磁されている。 The second embodiment is different from the first embodiment in that the first and second magnets 23c and 24a are two-pole magnetized on the opposing surfaces. FIG. 4 shows the first magnet 23c. 4A is a view of the first magnet 23c as viewed from the side facing the second magnet 24a, and FIG. 4B is a view of the first magnet 23c as viewed from the side (curved surface side). It is a figure. The first magnet 23c is two-pole magnetized on the facing surface. In the second embodiment, the first magnet 23c only needs to have two poles magnetized on the opposing surface, and performs different two-pole magnetization on both planes as shown in FIG. There may be. Although not shown, the second magnet 24a is also two-pole magnetized on the surface facing the first magnet 23c in the same manner as the first magnet 23c.
　図６は、第一，第二の磁石２３ｃ，２４ａ間に回転ズレが生じた際に発生する吸引力による回転トルクと第一，第二の磁石２３ｃ，２４ａ間の距離との関係を示す図である。なお、それぞれＴ１は対向面に２極着磁をした場合の特性を示し、Ｔ２は対向面に４極着磁をした場合の特性を示し、Ｔ３は対向面に８極着磁をした場合の特性を示し、Ｔ４は対向面に１６極着磁をした場合の特性を示している。図６から明らかなように、本願発明者は、第一，第二の磁石２３ｃ，２４ａ間の距離が大きくなると、２極着磁による特性Ｔ１が最も高い吸引トルクを示すことを見いだした。第一，第二の磁石２２ｃ，２３ａの磁力によって指針２２を指針駆動手段の回転駆動に連動して回動させる指示計器装置においては、第一，第二の磁石２３ｃ，２４ａ間に液晶表示素子２１ｂが配設されることで第一，第二の磁石２２ｃ，２３ａ間にある程度の距離を必要とするため、第一，第二の磁石２２ｃ，２３ａを対向面に２極着磁することでかかる指示計器装置において指針２２を回動させることが可能な高い吸引トルクを得ることができる。 FIG. 6 is a diagram showing the relationship between the rotational torque due to the attractive force generated when a rotational deviation occurs between the first and second magnets 23c and 24a and the distance between the first and second magnets 23c and 24a. It is. In addition, T1 shows the characteristic when dipole magnetization is performed on the opposing surface, T2 shows the characteristic when quadrupolar magnetization is applied on the opposing surface, and T3 shows the case when 8-pole magnetization is applied on the opposing surface. T4 indicates the characteristics when 16 poles are magnetized on the opposing surface. As apparent from FIG. 6, the present inventor has found that the characteristic T1 due to dipole magnetization shows the highest attraction torque when the distance between the first and second magnets 23c, 24a is increased. In the indicating instrument device that rotates the pointer 22 in conjunction with the rotational drive of the pointer driving means by the magnetic force of the first and second magnets 22c and 23a, a liquid crystal display element is provided between the first and second magnets 23c and 24a. Since a certain distance is required between the first and second magnets 22c and 23a due to the arrangement of 21b, the first and second magnets 22c and 23a are magnetized in two poles on the opposing surfaces. In such an indicating instrument device, a high suction torque capable of rotating the pointer 22 can be obtained.
　本発明は、表示板の指標部を指針で指示する指示計器装置に好適である。
  The present invention is suitable for an indicating instrument device that indicates an indicator portion of a display board with a pointer.

Claims (9)

  1. 表示板と、前記表示板の前面側に設けられた指針と、前記表示板の後面側に設けられ前記指針を回動させるための指針駆動手段と、を有する指示計器装置であって、
    前記表示板は、透光性の第一の表示板とこの第一の表示板の後方に間隔を空けて配設される第二の表示板とを有し、
    前記第一の表示板を貫通し前記指針が配設固定される主軸と前記第一の表示板に配設され前記主軸を回転可能に保持する主軸受け部とを有する軸部と、
    前記第一の表示板と前記第二の表示板との間に位置するように前記主軸に設けられる第一の磁石と、
    前記第一の磁石と対向するように前記指針駆動手段に設けられる第二の磁石と、を備え、
    前記第一，第二の磁石の吸引力によって前記指針を前記指針駆動手段の回転駆動に連動して回動させることを特徴とする指示計器装置。     An indicator instrument device comprising: a display plate; a pointer provided on the front side of the display plate; and a pointer driving means provided on the rear side of the display plate for rotating the pointer,
    The display panel has a translucent first display panel and a second display panel disposed behind the first display panel with a space therebetween,
    A shaft portion having a main shaft penetrating the first display plate and the pointer being disposed and fixed; and a main bearing portion disposed on the first display plate and rotatably holding the main shaft;
    A first magnet provided on the main shaft so as to be positioned between the first display plate and the second display plate;
    A second magnet provided on the pointer driving means so as to face the first magnet,
    An indicating instrument device, wherein the pointer is rotated by the attraction force of the first and second magnets in conjunction with the rotational driving of the pointer driving means.
  2. 前記第一の磁石の前記第二の磁石との非対向面側にヨークを配設してなることを特徴とする請求項１に記載の指示計器装置。 The indicator instrument device according to claim 1, wherein a yoke is disposed on a surface of the first magnet that is not opposed to the second magnet.
  3. 前記第一，第二の磁石は、Ｓ極及びＮ極が交互に複数着磁されてなることを特徴とする請求項１に記載の指示計器装置。 The indicating instrument device according to claim 1, wherein the first and second magnets are formed by alternately magnetizing a plurality of S poles and N poles.
  4. 前記第一，第二の磁石は、互いの対向面に２極着磁されてなることを特徴とする請求項１に記載の指示計器装置。 2. The indicating instrument device according to claim 1, wherein the first and second magnets are two-pole magnetized on opposing surfaces.
  5. 前記指針は、前記指針の後方から発せられる照明光を受光して前記指針を光輝させるための受光部を備えてなることを特徴とする請求項１に記載の指示計器装置。 The indicator device according to claim 1, wherein the pointer includes a light receiving unit that receives illumination light emitted from behind the pointer and shines the pointer.
  6. 前記照明光を発する照明手段は、前記第一の表示板上に配設されてなることを特徴とする請求項５に記載の指示計器装置。 6. The indicating instrument device according to claim 5, wherein the illuminating means for emitting the illumination light is disposed on the first display board.
  7. 前記指針駆動手段の軸部に接合される軸受け部を備え、前記第二の磁石は前記軸受け部に設けられてなることを特徴とする請求項１に記載の指示計器装置。 The indicating instrument device according to claim 1, further comprising a bearing portion joined to a shaft portion of the pointer driving means, wherein the second magnet is provided in the bearing portion.
  8. 前記第二の磁石は、前記軸受け部と一体的に形成されてなることを特徴とする請求項７に記載の指示計器装置。 The indicating instrument device according to claim 7, wherein the second magnet is formed integrally with the bearing portion.
  9. 前記第二の表示板は、前記指針に指示される可変表示部を備える可変表示素子を有してなることを特徴とする請求項１に記載の指示計器装置。
          2. The indicating instrument device according to claim 1, wherein the second display board includes a variable display element including a variable display unit instructed by the pointer.
PCT/JP2009/057546 2008-04-21 2009-04-15 Indicating instrument WO2009131039A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5470478U (en) * 1977-10-21 1979-05-19
JP2001165724A (en) * 1999-12-06 2001-06-22 Yuji Asano Permanent magnet type flowmeter
JP2003161650A (en) * 2001-11-28 2003-06-06 Nippon Seiki Co Ltd Indicator instrument device
JP2005265835A (en) * 2004-02-19 2005-09-29 Yazaki Corp Self-luminous pointer and pointing type display unit
JP2006338891A (en) * 2005-05-31 2006-12-14 Matsushita Electric Ind Co Ltd Rotary type electronic component

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5470478U (en) * 1977-10-21 1979-05-19
JP2001165724A (en) * 1999-12-06 2001-06-22 Yuji Asano Permanent magnet type flowmeter
JP2003161650A (en) * 2001-11-28 2003-06-06 Nippon Seiki Co Ltd Indicator instrument device
JP2005265835A (en) * 2004-02-19 2005-09-29 Yazaki Corp Self-luminous pointer and pointing type display unit
JP2006338891A (en) * 2005-05-31 2006-12-14 Matsushita Electric Ind Co Ltd Rotary type electronic component

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