JPS6125351Y2

JPS6125351Y2 -

Info

Publication number: JPS6125351Y2
Application number: JP134478U
Authority: JP
Priority date: 1978-01-10
Filing date: 1978-01-10
Publication date: 1986-07-30
Also published as: JPS54111617U

Description

【考案の詳細な説明】本考案は時計用ステツプモータ構造に関するも
ので、時計用ステツプモータのステータを、安定
に基板に取付ける事を目的としている。[Detailed Description of the Invention] The present invention relates to the structure of a step motor for a timepiece, and its purpose is to stably attach the stator of the step motor for a timepiece to a circuit board.

以下、図面に基づいて説明する。第１図は本考
案にかかる時計用ステツプモータの実施例平面図
である。基板である地板１に植設されたピン１ａ
で平面方向の位置が決められる添板３は、永久磁
石を有するロータ５付近の切断部２ｂによつて分
離されるステータ２に対して、溶接等の方法によ
り固定されて予め一体化されている。コイル４の
鉄芯４ａは、その両端がステータ２の両端と密着
され、ネジ８で固定される。添板３はネジ７で地
板１に取けられている。６はロータ５を支えるロ
ータ受である。 The following will explain based on the drawings. FIG. 1 is a plan view of an embodiment of a step motor for a timepiece according to the present invention. Pin 1a planted on base plate 1 which is a substrate
The splicing plate 3, whose position in the planar direction is determined by the stator 2, which is fixed by a method such as welding, is integrated in advance with the stator 2, which is separated by a cut portion 2b near the rotor 5 having a permanent magnet. . Both ends of the iron core 4a of the coil 4 are brought into close contact with both ends of the stator 2, and fixed with screws 8. The splint 3 is attached to the base plate 1 with screws 7. 6 is a rotor support that supports the rotor 5.

第２図は第１図Ａ−Ａに沿つた断面図であつ
て、コイル４の鉄芯４ａがステータ２の薄肉部２
ａを添板３とで挾持し、添板３の突出部３ａにネ
ジ８を締付ける事によつてこれらを密着結合させ
る。ロータ５は地板１の薄肉部とロータ受６の僅
かに突出した部分とに植設された軸受によつて支
えられている。ピン１ａは添板３に遊嵌してい
る。ステータ２と添板３は、該添板３の一部に設
けられた取付け部において、ネジ７によつて地板
１に取付けられているために、前記取付け部は前
記添板３のうち前記ステータ２と平面的に重なら
ない部分に設けられており、前記取付け部におい
ては前記ステータ２が介在しないぶん地板１の肉
厚を増してあり、ネジ７のネジ丈を充分に長して
ある。 FIG. 2 is a cross-sectional view taken along the line A-A in FIG.
A is held between the splice plate 3 and the screws 8 are tightened to the protruding portion 3a of the splice plate 3 to tightly connect them. The rotor 5 is supported by a bearing implanted in a thin portion of the base plate 1 and a slightly protruding portion of the rotor bearing 6. The pin 1a is loosely fitted into the splice plate 3. The stator 2 and the splint plate 3 are attached to the main plate 1 by screws 7 at a mounting part provided in a part of the splint plate 3. At the mounting portion, the thickness of the base plate 1 is increased because the stator 2 is not interposed therebetween, and the thread length of the screw 7 is made sufficiently long.

従つてステータ２の地板１への取付けに際して
も、ネジ７の締めつけ力がステータ２に直接的に
悪影響を及ぼすことは防止される。また地板１に
は、その添板支持面に対して図示の如く段差を成
して凹部が形成されており、該凹部の中にステー
タ２が収納されている。 Therefore, even when attaching the stator 2 to the base plate 1, the tightening force of the screws 7 is prevented from directly affecting the stator 2. Further, the base plate 1 has a recess formed in a stepped manner as shown in the figure with respect to the support surface of the splicing plate, and the stator 2 is housed in the recess.

以上詳述した如く、ステータ２は直接ネジ７等
によつて固定してないので、締付け時と衝撃時に
圧力が掛る事がなく、磁性材料で作られたステー
タ２の磁気特性を悪化させる事が無く、又ステー
タ２の平面的位置決めがピン１ａと直接に接触し
ていないので、平面方向の衝撃に対しても安全で
ある。一方、前述の如くネジ７のネジ丈が長く出
来るので衝撃を受けた時でもネジが損傷して抜け
てしまうようなことを防止するだけでなく、時計
を薄型にする事も可能である。 As detailed above, since the stator 2 is not directly fixed with the screws 7, etc., no pressure is applied during tightening or impact, which prevents deterioration of the magnetic properties of the stator 2 made of magnetic material. Moreover, since the planar positioning of the stator 2 does not directly contact the pin 1a, it is safe against impact in the planar direction. On the other hand, as mentioned above, since the screw length of the screw 7 can be made longer, it is possible not only to prevent the screw from being damaged and come off even when subjected to an impact, but also to make the watch thinner.

尚、上記で取付け用部材として例示されたピン
１ａやネジ７については、これらに限られる必要
はなく、例えばネジ７の代りとして鋲にする等の
改良も本考案に含まれ、ロータ受６を廃止して、
添板３でロータ５を支える様に変更す事等も出来
る。 In addition, the pin 1a and the screw 7 exemplified above as the mounting members are not limited to these, and improvements such as using a rivet instead of the screw 7 are also included in the present invention.
It is also possible to modify the arrangement so that the rotor 5 is supported by the splice plate 3.

以上、本考案はステータが地板に安定して取付
けられるので、衝撃時に於ても性能の劣下が無
く、品質の安定した時計を提供出来るばかりで無
く、薄型な構造にする事も可能にする等の効果を
奏する。 As described above, in this invention, since the stator is stably attached to the main plate, there is no deterioration in performance even in the event of an impact, and it is not only possible to provide a watch with stable quality, but also to have a thin structure. It has the following effects.

[Brief explanation of the drawing]

第１図は本考案にかかる時計用ステツプモータ
の実施例平面図、第２図は第１図のＡ−Ａ断面図
である。１……地板、２……ステータ、３……添板、４
……コイル、５……ロータ。 FIG. 1 is a plan view of an embodiment of a step motor for a timepiece according to the present invention, and FIG. 2 is a sectional view taken along the line AA in FIG. 1... Main plate, 2... Stator, 3... Splinter, 4
...Coil, 5...Rotor.

Claims

[Scope of utility model registration request]

In a timepiece step motor comprising a coil, a rotor having a permanent magnet, and a stator that is magnetically engaged with the coil and the rotor, and a splice plate is fixed to the stator, the splice plate is fixed to the stator. The stator is coupled to the substrate by providing an attachment portion to a substrate such as a base plate in a portion that does not overlap with the stator in a plane, and fixing the splint to the substrate at the attachment portion, and 1. A step motor structure for a timepiece, characterized in that a recess having a step is formed in the support surface of the splicing plate, and the stator is accommodated in the recess.