JP2007219124A - Display device - Google Patents

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JP2007219124A
JP2007219124A JP2006039200A JP2006039200A JP2007219124A JP 2007219124 A JP2007219124 A JP 2007219124A JP 2006039200 A JP2006039200 A JP 2006039200A JP 2006039200 A JP2006039200 A JP 2006039200A JP 2007219124 A JP2007219124 A JP 2007219124A
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gear
base plate
intermediate gear
attached
output gear
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JP4907188B2 (en
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Yutaka Otake
裕 大竹
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Nidec Copal Electronics Corp
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Nidec Copal Electronics Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device which is stopped finely without causing any backlash of a gear and any vertical vibration when stopping a display drum even when an inexpensive small motor is used. <P>SOLUTION: The display device comprises: a base plate 2; a small motor 4 attached to the base plate; an output gear 9 attached to the base plate so as to be freely rotated; a display drum attached to the output gear; an intermediate gear 14 which is attached to a base plate and transmits the drive of a motor pinion 5 to the output gear in a deceleration; and an intermediate gear energizing mechanism 15 for energizing the intermediate gear so as not to always cause any play in the motor pinion and the output gear. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は表示ドラムを用いた表示装置に関する。   The present invention relates to a display device using a display drum.

従来、この種の表示装置は表示ドラムを急激に停止させる必要があるため、ハイパワーのモータを用いている。     Conventionally, since this type of display device needs to stop the display drum abruptly, a high-power motor is used.

このため、高価なモータとなり、コスト高になるという欠点があった。この欠点を解消するために、ギヤ減速で安価な小型モータを使用することも考えられているが、ギヤのバックラッシュにより表示ドラムの停止時に上下震動してみにくい停止になってしまうという欠点があった。
特になし For this reason, there was a fault that it became an expensive motor and cost became high. In order to eliminate this drawback, it is also considered to use a small motor that is inexpensive for gear reduction, but there is a disadvantage that it becomes difficult to vibrate up and down when the display drum stops due to gear backlash. It was.
nothing special

本発明は以上のような従来の欠点に鑑み、安価な小型モータを使用してもギヤのバックラッシュをなくし、表示ドラムの停止時の上下震動をなくし、きれいに停止させることができる表示装置を提供することを目的としている。     In view of the above-described conventional drawbacks, the present invention provides a display device that can eliminate gear backlash even when using an inexpensive small motor, eliminate vertical vibration when the display drum is stopped, and cleanly stop the display device. The purpose is to do.

本発明の前記ならびにそのほかの目的と新規な特徴は次の説明を添付図面と照らし合わせて読むと、より完全に明らかになるであろう。
ただし、図面はもっぱら解説のためのものであって、本発明の技術的範囲を限定するものではない。 The above and other objects and novel features of the present invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings.
However, the drawings are for explanation only and do not limit the technical scope of the present invention.

上記目的を達成するために、本発明はベース板と、このベース板に取付けられた小型モータと、前記ベース板に回転可能に取付けられた出力ギヤと、この出力ギヤに取付けられた表示ドラムと、前記小型モータのモータピニオンの駆動を前記出力ギヤに減速して伝達する、前記ベース板に取付けられた中間ギヤと、この中間ギヤを常時前記モータピニオンと前記出力ギヤに遊びが生じないように付勢する中間ギヤ付勢機構とで表示装置を構成している。 To achieve the above object, the present invention provides a base plate, a small motor attached to the base plate, an output gear rotatably attached to the base plate, and a display drum attached to the output gear. An intermediate gear attached to the base plate that transmits the drive of the motor pinion of the small motor to the output gear at a reduced speed, and this intermediate gear is always free from play in the motor pinion and the output gear. The intermediate gear biasing mechanism that biases constitutes a display device.

以上の説明から明らかなように、本発明にあっては次に列挙する効果が得られる。   As is clear from the above description, the present invention has the following effects.

（１）ベース板と、このベース板に取付けられた小型モータと、前記ベース板に回転可能に取付けられた出力ギヤと、この出力ギヤに取付けられた表示ドラムと、前記小型モータのモータピニオンの駆動を前記出力ギヤに減速して伝達する、前記ベース板に取付けられた中間ギヤと、この中間ギヤを常時前記モータピニオンと前記出力ギヤに遊びが生じないように付勢する中間ギヤ付勢機構とで構成されているので、表示ドラムを小型モータで駆動させることができる。
したがって、安価なモータが使用でき、コストの低減を図ることができる。 (1) A base plate, a small motor attached to the base plate, an output gear rotatably attached to the base plate, a display drum attached to the output gear, and a motor pinion of the small motor An intermediate gear attached to the base plate that transmits the drive to the output gear at a reduced speed, and an intermediate gear urging mechanism that constantly urges the intermediate gear so that no play occurs in the motor pinion and the output gear. The display drum can be driven by a small motor.
Therefore, an inexpensive motor can be used, and the cost can be reduced.

（２）前記（１）によって、中間ギヤをモータピニオンと出力ギヤに遊びが生じないように付勢する中間ギヤ付勢機構によって、ギヤのバックラッシュをなくすことができる。
したがって、表示ドラムの停止時の上下震動を防止し、きれいに表示ドラムを停止させることができる。 (2) According to the above (1), the backlash of the gear can be eliminated by the intermediate gear urging mechanism that urges the intermediate gear so that play does not occur between the motor pinion and the output gear.
Therefore, it is possible to prevent vertical vibration when the display drum is stopped and to stop the display drum cleanly.

（３）前記（１）によって、中間ギヤ付勢機構を用いるだけでよいので、容易で、安価に設置することができる。 (3) According to the above (1), it is only necessary to use an intermediate gear biasing mechanism, so that it can be installed easily and inexpensively.

（４）請求項２も前記（１）〜（３）と同様な効果が得られる。 (4) In claim 2, the same effects as in the above (1) to (3) can be obtained.

以下、図面に示す本発明を実施するための最良の形態により、本発明を詳細に説明する。   Hereinafter, the present invention will be described in detail with reference to the best mode for carrying out the invention shown in the drawings.

図１ないし図５に示す本発明を実施するための最良の第１の形態において、１は本発明の表示装置で、この表示装置１はベース板２と、このベース板２の前面に駆動軸３が突出するように、該ベース板２の裏面に取付けられた小型モータ４と、この小型モータ４の駆動軸３に取付けられたモータピニオン５と、前記ベース板２の前面に軸受６を介して回転可能に取付けられた出力軸７に取付けられた表示ドラム取付部８を有する出力ギヤ９と、この出力ギヤ９の表示ドラム取付部８にビス１０で取付けられた表示ドラム１１と、前記小型モータ４のモータピニオン５の駆動を前記出力ギヤ９に減速して伝達する前記ベース板２に取付けられた、該モータピニオン５と噛み合う大歯車１２および出力ギヤ９と噛み合う小歯車１３とからなる中間ギヤ１４と、この中間ギヤ１４を常時前記モータピニオン５と前記出力ギヤ９に遊びが生じないように付勢する中間ギヤ付勢機構１５とで構成されている。   In the first preferred embodiment for carrying out the present invention shown in FIGS. 1 to 5, reference numeral 1 denotes a display device according to the present invention. 3, a small motor 4 attached to the back surface of the base plate 2, a motor pinion 5 attached to the drive shaft 3 of the small motor 4, and a bearing 6 on the front surface of the base plate 2. An output gear 9 having a display drum mounting portion 8 attached to an output shaft 7 which is rotatably mounted, a display drum 11 attached to the display drum mounting portion 8 of the output gear 9 with a screw 10, and the small size An intermediate comprising a large gear 12 that meshes with the motor pinion 5 and a small gear 13 that meshes with the output gear 9 attached to the base plate 2 that decelerates and transmits the drive of the motor pinion 5 of the motor 4 to the output gear 9. And Ya 14, and an intermediate gear biasing mechanism 15 for biasing so that no play of the intermediate gear 14 at all times the motor pinion 5 and the output gear 9.

前記中間ギヤ付勢機構１５は前記モータピニオン５と出力ギヤ９との間のベース板２上をスライド移動できる支持板１６と、この支持板１６の一端部に形成された軸挿入孔１７に遊びを介して挿入されるとともに、該支持板１６が脱落しないように支持する、前記ベース板２に固定された固定シャフト１８およびこの固定シャフト１８の先端部寄りの部位に形成された、割りワッシャ挿入溝１９に挿入された割りワッシャ２０からなる取付け手段と、前記支持板１６の中央部寄りの部位に取付けられた中間ギヤ１４が取付けられる中間ギヤ支持シャフト２１と、この中間ギヤ支持シャフト２１の前記ベース板２に形成された中間ギヤ支持シャフト挿入孔２２に位置する部位に取付けられたＯリング２３と、前記支持板１６の他端部の付勢スプリング係止片２４にほぼ中央部が係止され、両端部が前記ベース板２の付勢スプリング係止部２５、２５に係止された、前記中間ギヤ１４が常時モータピニオン５と出力ギヤ９に遊びが生じないように付勢する付勢スプリング２６とで構成されている。   The intermediate gear urging mechanism 15 is free to play in a support plate 16 that can slide on the base plate 2 between the motor pinion 5 and the output gear 9 and a shaft insertion hole 17 formed in one end of the support plate 16. The fixed shaft 18 fixed to the base plate 2 and the portion near the tip of the fixed shaft 18 are inserted so as to prevent the support plate 16 from falling off. An attaching means comprising a split washer 20 inserted into the groove 19, an intermediate gear support shaft 21 to which an intermediate gear 14 attached to a portion near the center of the support plate 16 is attached, and the intermediate gear support shaft 21 An O-ring 23 attached to a portion located in the intermediate gear support shaft insertion hole 22 formed in the base plate 2 and a biasing sp at the other end of the support plate 16 The intermediate gear 14 is always locked to the motor pinion 5 and the output gear 9 with the central portion locked to the ring locking piece 24 and both ends locked to the biasing spring locking portions 25, 25 of the base plate 2. And an urging spring 26 for urging so that no play occurs.

上記構成の表示装置１は小型モータ４の駆動により、モータピニオン５、中間ギヤ１４の大歯車１２、小歯車１３を介して出力ギヤ９が回転し、表示ドラム１１が出力ギヤ９と一体になって回転する。
小型モータ４の駆動を停止すると表示ドラム１１も停止するが、この時、中間ギヤ１４とモータピニオン５および出力ギヤ９は中間ギヤ付勢機構１５でバックラッシュが生じないため、表示ドラム１１が上下震動することなく、きれいに停止し、表示ドラム１１の表示が見やすい状態で見える。
[発明を実施するための異なる形態] In the display device 1 configured as described above, when the small motor 4 is driven, the output gear 9 rotates through the motor pinion 5, the large gear 12 of the intermediate gear 14, and the small gear 13, and the display drum 11 is integrated with the output gear 9. Rotate.
When the driving of the small motor 4 is stopped, the display drum 11 is also stopped. At this time, the intermediate gear 14, the motor pinion 5 and the output gear 9 are not backlashed by the intermediate gear biasing mechanism 15. Without shaking, it stops cleanly and the display on the display drum 11 can be seen easily.
[Different forms for carrying out the invention]

次に、図６ないし図１１に示す本発明を実施するための異なる形態につき説明する。なお、これらの本発明を実施するための異なる形態の説明に当って、前記本発明を実施するための最良の第１の形態と同一構成部分には同一符号を付して重複する説明を省略する。   Next, different modes for carrying out the present invention shown in FIGS. 6 to 11 will be described. In the description of these different modes for carrying out the present invention, the same components as those in the best mode for carrying out the present invention are designated by the same reference numerals and redundant description is omitted. To do.

図６ないし図８に示す本発明を実施するための第２の形態において、前記本発明を実施するための最良の第１の形態と主に異なる点は、ベース板２の中間ギヤ支持シャフト挿入孔２２にＯリングを用いることなく、遊びを介して中間ギヤシャフト２１を位置させた中間ギヤ付勢機構１５Ａを用いた点で、このような中間ギヤ付勢機構１５Ａを用いて構成した表示装置１Ａにしても、前記本発明を実施するための最良の第１の形態と同様な作用効果が得られる。   The second embodiment for carrying out the present invention shown in FIGS. 6 to 8 is mainly different from the first embodiment for carrying out the present invention in that an intermediate gear support shaft is inserted into the base plate 2. A display device configured by using such an intermediate gear biasing mechanism 15A in that the intermediate gear shaft 21 is positioned via play without using an O-ring in the hole 22. Even if it is 1A, the same effect as the best first embodiment for carrying out the present invention can be obtained.

図９ないし図１１に示す本発明を実施するための第３の形態において、前記本発明を実施するための最良の第１の形態と主に異なる点は、支持板１６の一端部をベース板２に対向するように切り欠き２７、２７をクランク状に曲げた一対のガイド片２８、２８でスライド移動可能に支持するとともに、支持板１６の他端部をコイルスプリングを用いた付勢スプリング２６Ａで常時中間ギヤ１４をモータピニオン５と出力ギヤ９とに遊びが生じないように付勢した中間ギヤ付勢機構１５Ｂを用いた点で、このような中間ギヤ付勢機構１５Ｂを用いて構成した表示装置１Ｂにしても、前記本発明を実施するための最良の第１の形態と同様な作用効果が得られる。   The third embodiment for carrying out the present invention shown in FIGS. 9 to 11 is mainly different from the best first embodiment for carrying out the present invention in that one end of the support plate 16 is attached to the base plate. The notches 27 and 27 are slidably supported by a pair of guide pieces 28 and 28 bent in a crank shape so as to face 2 and the other end portion of the support plate 16 is urged spring 26A using a coil spring. Therefore, the intermediate gear 14 is constructed using such an intermediate gear biasing mechanism 15B in that the intermediate gear 14 is always biased so that play is not generated between the motor pinion 5 and the output gear 9. Even in the display device 1B, the same effects as those of the best first embodiment for carrying out the present invention can be obtained.

本発明は表示ドラムを用いた表示装置を製造する産業で利用される。   The present invention is used in the industry for manufacturing a display device using a display drum.

本発明を実施するための最良の第１の形態の正面図。1 is a front view of the best first embodiment for carrying out the present invention. 本発明を実施するための最良の第１の形態の側面図。The side view of the best 1st form for implementing this invention. 本発明を実施するための最良の第１の形態の表示ドラムを外した状態の拡大平面図。The enlarged plan view of the state which removed the display drum of the best 1st form for implementing this invention. 図３の４−４線に沿う断面図。Sectional drawing which follows the 4-4 line of FIG. 図３の５−５線に沿う断面図。Sectional drawing which follows the 5-5 line of FIG. 本発明を実施するための第２の形態の側面図。The side view of the 2nd form for carrying out the present invention. 本発明を実施するための第２の形態の表示ドラムを外した状態の拡大平面図。The enlarged plan view of the state which removed the display drum of the 2nd form for carrying out the present invention. 図７の８−８線に沿う断面図。Sectional drawing which follows the 8-8 line of FIG. 本発明を実施するための第３の形態の側面図。The side view of the 3rd form for carrying out the present invention. 本発明を実施するための第３の形態の表示ドラムを外した状態の拡大平面図。The enlarged plan view of the state which removed the display drum of the 3rd form for carrying out the present invention. 図１０の１１−１１線に沿う断面図。Sectional drawing which follows the 11-11 line of FIG.

符号の説明Explanation of symbols

１、１Ａ、１Ｂ：表示装置、 ２：ベース板、
３：駆動軸、 ４：小型モータ、
５：モータピニオン、 ６：軸受、
７：出力軸、 ８：表示ドラム取付部、
９：出力ギヤ、 １０：ビス、
１１：表示ドラム、 １２：大歯車、
１３：小歯車、 １４：中間ギヤ、
１５、１５Ａ、１５Ｂ：中間ギヤ付勢機構、
１６：支持板、 １７：軸挿入孔、
１８：固定シャフト、 １９：割りワッシャ挿入溝、
２０：割りワッシャ、 ２１：中間ギヤ支持シャフト、
２２：中間ギヤ支持シャフト挿入孔、
２３：Ｏリング、 ２４：付勢スプリング係止片、
２５：付勢スプリング係止部、 ２６、２６Ａ：付勢スプリング、
２７：切り欠き、 ２８：ガイド片。
1, 1A, 1B: display device, 2: base plate,
3: Drive shaft, 4: Small motor,
5: Motor pinion, 6: Bearing,
7: Output shaft, 8: Display drum mounting part,
9: Output gear, 10: Screw,
11: Display drum, 12: Large gear,
13: Small gear, 14: Intermediate gear,
15, 15A, 15B: intermediate gear biasing mechanism,
16: support plate, 17: shaft insertion hole,
18: Fixed shaft, 19: Split washer insertion groove,
20: Split washer, 21: Intermediate gear support shaft,
22: Intermediate gear support shaft insertion hole,
23: O-ring, 24: Energizing spring locking piece,
25: Energizing spring locking portion, 26, 26A: Energizing spring,
27: Notch, 28: Guide piece.

Claims (2)

ベース板と、このベース板に取付けられた小型モータと、前記ベース板に回転可能に取付けられた出力ギヤと、この出力ギヤに取付けられた表示ドラムと、前記小型モータのモータピニオンの駆動を前記出力ギヤに減速して伝達する、前記ベース板に取付けられた中間ギヤと、この中間ギヤを常時前記モータピニオンと前記出力ギヤに遊びが生じないように付勢する中間ギヤ付勢機構とを備えることを特徴とする表示装置。 A base plate, a small motor attached to the base plate, an output gear rotatably attached to the base plate, a display drum attached to the output gear, and driving the motor pinion of the small motor; An intermediate gear attached to the base plate that transmits the output gear at a reduced speed, and an intermediate gear urging mechanism that constantly urges the intermediate gear so that play does not occur in the motor pinion and the output gear. A display device characterized by that. 中間ギヤ付勢機構は中間ギヤが回転可能に取付けられた支持板と、この支持板を前記中間ギヤがモータピニオンと出力ギヤに遊びが生じないように移動できるようにベース板に取付けるベース板への取付け手段と、前記支持板を常時中間ギヤがモータピニオンと出力ギヤに遊びが生じないように付勢する付勢スプリングとで構成されていることを特徴とする請求項１記載の表示装置。
The intermediate gear urging mechanism includes a support plate to which the intermediate gear is rotatably attached, and a base plate that is attached to the base plate so that the intermediate gear can move so that play does not occur in the motor pinion and the output gear. 2. A display device according to claim 1, wherein said mounting means and a biasing spring for constantly biasing said support plate so that play is not generated in said motor pinion and output gear by said intermediate gear.
JP2006039200A 2006-02-16 2006-02-16 Display device Active JP4907188B2 (en)

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JP6419434B2 (en) * 2014-02-18 2018-11-07 日本電産コパル電子株式会社 Display device

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