JPH03122388U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の一実施例を示す分針車の構成
部品の斜視図、第２図は本考案の分針車を含むム
ーブメントの要部断面図、第３図は本考案の報時
スイツチ正回転状態の平面図、第４図は本考案の
報時スイツチ逆回転状態の平面図、第５図は従来
例を示す報時機能の平面略図である。 １４……分針車、１……分針パイプ、１ａ……
分針カナ、１ｂ……カム係合部、１ｃ……歯車弾
圧部、２……固定カム、２ａ……ボス、２ｂ……
突出部、２ｃ……曲線部、３……可動カム、３ａ
……突出部、３ｂ……溝穴、３ｃ……段落部、３
ｄ，３ｅ……壁部、４……分針歯車、４ａ……弾
圧腕、４ｂ……円弧部、５……接点バネ、５ａ…
…可動接片、５ａ′……中立点、６……固定接点
、７……日ノ裏車、８……時針車、９……下板、
１０……中板、１１……上板、１２……秒針車、
１３……分伝エ車。 Fig. 1 is a perspective view of the component parts of a minute wheel according to an embodiment of the present invention, Fig. 2 is a cross-sectional view of the main parts of a movement including the minute hand wheel of the present invention, and Fig. 3 is a main part of the movement including the minute hand wheel of the present invention. FIG. 4 is a plan view of the time signal switch of the present invention in a reverse rotation state, and FIG. 5 is a schematic plan view of the time signal function of a conventional example. 14...Minute wheel, 1...Minute hand pipe, 1a...
Minute hand pinion, 1b...Cam engaging part, 1c...Gear pressure part, 2...Fixed cam, 2a...Boss, 2b...
Projection part, 2c...Curved part, 3...Movable cam, 3a
...Protrusion, 3b...Slot, 3c...Ragway, 3
d, 3e... Wall portion, 4... Minute hand gear, 4a... Pressing arm, 4b... Arc portion, 5... Contact spring, 5a...
...Movable contact piece, 5a'... Neutral point, 6... Fixed contact, 7... Hino wheel, 8... Hour hand wheel, 9... Lower plate,
10...middle plate, 11...upper plate, 12...second hand wheel,
13...Buden train.

Claims (1)

【実用新案登録請求の範囲】 (1) 分針軸と、該分針軸に一体的に形成され日
ノ裏車を介して時針車を駆動する分針カナと、伝
エ車を介してモータからの動力を伝達する分針歯
車とより形成され１時間に１回転する分針車によ
り、少なくとも分時刻を表示する時計ムーブメン
トにおいて、固定接点と、該固定接点に対して接
触することによつてパルス信号を発生し報時動作
を行なう可動接片より構成されるスイツチ機構と
、前記分針軸に揺動可能に固定され且つ山と谷と
の段差により前記可動接片を機能させる可動カム
と、該可動カムが逆転時前記可動接片を少なくと
も中立位置から前記可動カムの山の頂点位置まで
緩やかに押し上げる曲線を有する固定カムとを前
記分針車に一体的に形成されていることを特徴と
する機能時計の分針車。 (2) 前記可動カムは前記分針軸と係合し、前記
分針軸に固定されたカム部と、前記分針歯車とに
より断面方向位置規制されていることを特徴とす
る請求項１記載の機能時計の分針車。[Scope of Claim for Utility Model Registration] (1) A minute hand shaft, a minute hand pinion that is integrally formed on the minute hand shaft and drives the hour hand wheel via a hinoku wheel, and power from a motor via an air transmission wheel. In a clock movement that displays at least the minute time, the minute hand gear, which is formed by a minute hand gear and rotates once per hour, is connected to a fixed contact and generates a pulse signal by contacting the fixed contact. A switch mechanism consisting of a movable contact piece that performs a time signal operation, a movable cam that is swingably fixed to the minute hand shaft and that causes the movable contact piece to function by a step between a peak and a trough, and a switch mechanism that is configured such that the movable cam functions in reverse. A minute hand wheel of a functional timepiece, characterized in that a fixed cam having a curve that gently pushes up the movable contact piece from at least a neutral position to a peak position of the movable cam is integrally formed with the minute hand wheel. . (2) The functional timepiece according to claim 1, wherein the movable cam engages with the minute hand shaft and is regulated in cross-sectional position by a cam portion fixed to the minute hand shaft and the minute hand gear. minute hand wheel.