JP2009301729A

JP2009301729A - Impact switch

Info

Publication number: JP2009301729A
Application number: JP2008151488A
Authority: JP
Inventors: Yoshitomo Sakai; 義友酒井; Toshiya Ishibashi; 利也石橋
Original assignee: KASATANI KK; Kasatani Corp
Current assignee: KASATANI KK; Kasatani Corp
Priority date: 2008-06-10
Filing date: 2008-06-10
Publication date: 2009-12-24
Anticipated expiration: 2028-06-10
Also published as: JP5095512B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide an impact switch for leaving the history of impact which it receives even in a state in which the switch is not energized when it receives the impact. <P>SOLUTION: In a state in which the impact switch is installed on a portable device, a terminal piece 5 is set in a first attitude and contacts 4a, 4b abut on terminals 3a, 3b, respectively, getting into an electrically conductive condition. When inertial force works on a first link 7 and a second link 9 in the direction of an arrowmark A, the first link 7 turns around a rotating shaft 6 in the direction of an arrowmark B against the biasing force of a spring member 10 and the second link 9 turns around the contact 4a in the direction of an arrowmark C. A connection shaft 8 moves in the direction of an arrowmark D, and when the axial center of the connection shaft 8 rides over a line 61 connecting the axial center of the turning shaft 6 to the center of the contact 7a, the connection shaft 8 moves to a predetermined position with the biasing force of the spring member 10 and is stopped. Namely, the terminal piece 5 clicks and turns from the first attitude and is held in a second attitude, and the contact 4b moves apart from the terminal 3b into an electrically cut-off condition. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、携帯機器への設置状態では電気的に導通状態にあり、外部から所定の大きさ以上の衝撃を受けると、電気的に遮断状態となる衝撃スイッチに関する。 The present invention relates to an impact switch that is in an electrically conductive state when installed in a portable device and that is electrically disconnected when an impact of a predetermined magnitude or more is applied from the outside.

従来より、携帯端末や、ファンヒータやストーブ等の燃焼装置、自動車のエアバック装置等の各種機器に作用する衝撃を検知するものとして、外部からの衝撃に応動して電気的な接続状態が切り替わる衝撃スイッチが知られている。このような衝撃スイッチとして、例えば、互いに離間して配された第１の固定端子及び第２の固定端子と、第１の固定端子に対して移動自在であって該端子と電気的に導通された可動接点と、この可動接点を第２の固定端子に向けて付勢するバネ部材を備えたものがある（例えば、特許文献１参照）。このスイッチでは、通常状態では可動接点がバネ付勢されて第２の固定端子と当接し、第１の固定端子と第２の固定端子間が電気的に導通状態にあり、衝撃を受けると可動接点が揺動して第２の固定接点と離反し、第１の固定端子と第２の固定端子間が一時的に遮断状態となる。
特開平１１−１５４４４８号公報 Conventionally, the electrical connection state is switched in response to external impact as a device that detects impact on various devices such as portable devices, combustion devices such as fan heaters and stoves, and air bag devices for automobiles. Shock switches are known. As such an impact switch, for example, a first fixed terminal and a second fixed terminal that are arranged apart from each other, and are movable with respect to the first fixed terminal and are electrically connected to the terminals. And a spring member that biases the movable contact toward the second fixed terminal (see, for example, Patent Document 1). In this switch, in a normal state, the movable contact is spring-biased and comes into contact with the second fixed terminal, and the first fixed terminal and the second fixed terminal are electrically connected. The contact swings away from the second fixed contact, and the first fixed terminal and the second fixed terminal are temporarily disconnected.
Japanese Patent Laid-Open No. 11-154448

しかしながら、上述のような従来の衝撃スイッチでは、衝撃を受けた後は、可動接点がバネ付勢により元の位置に復帰して第２の固定端子と当接し、通常状態に復帰する。そのため、衝撃を受けたときにスイッチが通電されていない状態であると、衝撃を受けたことを履歴として残すことができない。 However, in the conventional impact switch as described above, after receiving the impact, the movable contact returns to the original position by the bias of the spring, contacts the second fixed terminal, and returns to the normal state. Therefore, if the switch is not energized when receiving an impact, it is not possible to leave a history of the impact.

近年、様々な小型・携帯機器が人々に供されており、これら機器は落下等による損傷を受けることが多い。このような機器は、許容値を超える大きさの衝撃を受けると、直ちに故障となることがある一方で、衝撃を受けた後しばらく時間が経過してから故障に至る場合や、故障し易くなる場合がある。そのため、該機器が故障して完全に使用できなくなる前に、何らかの対応や対策を施すことができれば、ユーザにとって失うものが少なくて済む可能性がある。しかし、このような機器は一般的にバッテリ駆動であり、不使用時には節電のために電源がオフ状態とされていることが多いので、上述したスイッチが該機器に搭載されていても、損傷を受けたことをユーザに対して告知できない場合がある。 In recent years, various small and portable devices have been provided to people, and these devices are often damaged by dropping or the like. Such devices may fail immediately when subjected to an impact exceeding the allowable value. On the other hand, when a certain amount of time elapses after receiving the impact, the device may fail or be prone to failure. There is a case. For this reason, if some measures and measures can be taken before the device fails and cannot be used completely, there is a possibility that the user loses less. However, such devices are generally battery-powered, and when not in use, the power is often turned off to save power. Therefore, even if the above-described switch is mounted on the device, the device is not damaged. In some cases, it may not be possible to notify the user of the receipt.

本発明は、上記問題を解決するためになされたものであり、衝撃を受けたときにスイッチが通電されていない状態であっても、衝撃を受けたことを履歴として残すことができる衝撃スイッチを提供することを目的とする。 The present invention has been made in order to solve the above-described problem. Even when the switch is not energized when receiving an impact, an impact switch capable of leaving the impact received as a history is provided. The purpose is to provide.

上記目的を達成するために請求項１の発明は、携帯機器への設置状態では電気的に導通状態にあり、外部から所定の大きさ以上の衝撃を受けると電気的に遮断状態となる衝撃スイッチであって、本体ケースに互いに離間して配設された一対の端子と、前記本体ケースにクリック回動自在に支持されており、前記端子の各々と当接する一対の接点を有した端子片とを備え、前記端子片は、通常では中立の第１姿勢にあり、一方向から所定の大きさ以上の衝撃を受けることにより該第１姿勢からクリック回動して第２姿勢に保持され、又は他方向から所定の大きさ以上の衝撃を受けることにより前記第１姿勢から前記とは反対方向にクリック回動して第３姿勢に保持されるように構成され、携帯機器への設置状態では、前記端子片が前記第１姿勢にあって、前記一対の接点が前記一対の端子とそれぞれ当接して電気的に導通状態にあり、前記本体ケースが外部から所定の大きさ以上の衝撃を受けたとき、前記端子片に慣性力が働き、該端子片が前記第１姿勢からクリック回動して前記第２姿勢又は第３姿勢に保持され、前記いずれかの接点が前記一対の端子から離反して電気的に遮断状態となるものである。 In order to achieve the above object, the invention according to claim 1 is an impact switch that is electrically conductive when installed in a portable device, and is electrically disconnected when an impact of a predetermined magnitude or more is applied from the outside. A pair of terminals that are spaced apart from each other in the main body case, and a terminal piece that is supported by the main body case so as to be clickable and has a pair of contacts that abut against each of the terminals; The terminal piece is normally in a neutral first posture, and is subjected to a click rotation from the first posture and held in the second posture by receiving an impact of a predetermined magnitude or more from one direction, or By being subjected to an impact of a predetermined magnitude or more from the other direction, the first posture is click-turned in the opposite direction to be held in the third posture, and when installed in the mobile device, The terminal piece is in the first posture. When the pair of contacts are in contact with the pair of terminals and are in an electrically conducting state, and the body case receives an impact of a predetermined magnitude or more from the outside, an inertial force is applied to the terminal pieces. The terminal piece is click-rotated from the first position and held in the second position or the third position, and any one of the contacts is separated from the pair of terminals to be electrically disconnected. It is.

請求項２の発明は、請求項１に記載の発明において、前記端子片は、前記本体ケースに回動軸により回動自在、且つ前記端子側に向けて往復移動自在に支持された第１のリンクと、前記第１のリンクと連結軸により回動自在に連結され、前記一対の接点が配された第２のリンクと、前記第１のリンクを前記端子側に向けて付勢し、前記連結軸を介して前記接点を前記端子に押圧させるバネ部材とで構成され、前記本体ケースが外部から前記一対の端子の並び方向に所定の大きさ以上の衝撃を受けたとき、前記端子片に慣性力が働き、前記バネ部材の付勢力に抗して前記第１のリンクは前記回動軸を中心に回動すると共に、前記第２のリンクは前記一方の接点を中心に回動して前記連結軸は移動し、該連結軸の軸心が前記回動軸と前記一方の接点とを結ぶ線を越えると、前記連結軸は前記バネ部材の付勢力により所定の位置まで移動して停止し、これにより前記端子片が前記第２姿勢又は第３姿勢に保持され、前記他方の接点が該接点に対応する端子から離反して電気的に遮断状態となるものである。 According to a second aspect of the present invention, in the first aspect of the invention, the terminal piece is supported by the main body case so as to be rotatable by a rotation shaft and to be reciprocally movable toward the terminal side. A link, a second link that is pivotally connected to the first link by a connecting shaft, and the pair of contacts are arranged; and the first link is urged toward the terminal, A spring member that presses the contact against the terminal via a connecting shaft, and when the main body case receives an impact of a predetermined magnitude or more in the direction in which the pair of terminals are arranged from the outside, Inertial force works, the first link rotates about the rotation shaft against the biasing force of the spring member, and the second link rotates about the one contact point The connecting shaft moves, and the axis of the connecting shaft is in contact with the rotating shaft and the one of the connecting shafts. The connecting shaft moves to a predetermined position by the urging force of the spring member and stops, whereby the terminal piece is held in the second posture or the third posture, and the other The contact is separated from the terminal corresponding to the contact and is electrically cut off.

請求項３の発明は、請求項１に記載の発明において、前記端子片は、前記本体ケースに回動軸により回動自在に支持された第１のリンクと、前記第１のリンクと連結軸により回動自在に連結され、前記一対の接点が配された第２のリンクとで構成され、前記第１のリンクは、２本の腕部を有したねじりコイルバネで成り、一方の腕部に前記回動軸が掛合されると共に他方の腕部に前記連結軸が掛合され、前記第２のリンクを前記端子側に向けて付勢して前記接点を前記端子に押圧させ、前記本体ケースが外部から前記一対の端子の並び方向に所定の大きさ以上の衝撃を受けたとき、前記端子片に慣性力が働き、前記第１のリンクは前記回動軸を中心に回動すると共に、該第１のリンクの付勢力に抗して前記第２のリンクは前記一方の接点を中心に回動して前記連結軸は移動し、該連結軸の軸心が前記回動軸と前記一方の接点とを結ぶ線を越えると、前記連結軸は前記第１のリンクの付勢力により所定の位置まで移動して停止し、これにより前記端子片が前記第２姿勢又は第３姿勢に保持され、前記他方の接点が該接点に対応する端子から離反して電気的に遮断状態となるものである。 According to a third aspect of the present invention, in the first aspect of the present invention, the terminal piece includes a first link rotatably supported on the main body case by a rotation shaft, the first link, and a connecting shaft. And a second link provided with the pair of contact points. The first link is constituted by a torsion coil spring having two arms, and one arm has The rotating shaft is engaged and the connecting shaft is engaged with the other arm portion, the second link is urged toward the terminal side to press the contact against the terminal, and the body case is When an impact of a predetermined magnitude or more is applied from the outside in the arrangement direction of the pair of terminals, an inertial force acts on the terminal pieces, the first link rotates about the rotation shaft, Against the biasing force of the first link, the second link has the one contact in the middle And the connecting shaft moves, and when the axis of the connecting shaft exceeds the line connecting the rotating shaft and the one contact, the connecting shaft is predetermined by the biasing force of the first link. The terminal piece is held in the second posture or the third posture, and the other contact is separated from the terminal corresponding to the contact and is electrically cut off. It is.

請求項４の発明は、請求項１乃至請求項３のいずれか一項に記載の発明において、前記第２のリンクは、二股形状の導電部材で成り、その頂部に前記連結軸が配されると共に二つの足部に前記一対の接点がそれぞれ配されており、前記足部は、前記本体ケースの前記端子配設部に隣接して設けられた保持部に回動自在、且つ該端子片が回動するときに前記接点が干渉しないように保持されるものである。 According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the second link is made of a bifurcated conductive member, and the connecting shaft is arranged on the top thereof. In addition, the pair of contact points are respectively disposed on the two foot portions, the foot portions are rotatable to a holding portion provided adjacent to the terminal arrangement portion of the main body case, and the terminal pieces are It is held so that the contact does not interfere when rotating.

請求項５の発明は、請求項１乃至請求項４のいずれか一項に記載の発明において、前記本体ケースは、前記連結軸の位置を外部から目視できるように形成されているものである。 According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the main body case is formed so that the position of the connecting shaft can be seen from the outside.

請求項１の発明によれば、外部から所定の大きさ以上の衝撃を受け、いずれかの接点が一対の端子から離反して電気的に遮断状態となると、その状態が保持されるので、該衝撃を受けたことが機械的な履歴として残る。従って、本スイッチが小型・携帯機器に搭載され、上記衝撃を受けたときにそれら機器の電源がオフ状態にあり、本スイッチが通電されていない状態であっても、その後に該機器の電源がオンされたとき、該機器がその前に衝撃を受けたことを検知することができ、ひいては、ユーザに対して音声や映像等で対応／対策メッセージ等を告知することが可能となる。 According to the invention of claim 1, when an impact of a predetermined magnitude or more is received from the outside and one of the contacts is separated from the pair of terminals and is electrically cut off, the state is maintained. The impact is left as a mechanical history. Therefore, even when the switch is mounted on a small-sized portable device and the device is turned off when the shock is applied and the switch is not energized, the power of the device is subsequently turned off. When the device is turned on, it can be detected that the device has received an impact before that, and as a result, it is possible to notify the user of a response / measure message or the like by voice or video.

請求項２の発明によれば、電気的に遮断状態となると、その状態がバネ部材の付勢力により確実に保持されるので、スイッチとしての信頼性を高く維持できる。また、一対の端子間の導通が、複数の伝達部材を経由するのでなくひとつの部材、すなわち第２のリンクによって行われるため、伝達部材間の接触状態によるロス等を見込む必要が無く、スイッチとしての信頼性が一層高く維持できる。 According to the second aspect of the present invention, when an electrically disconnected state is established, the state is reliably held by the biasing force of the spring member, so that the reliability as a switch can be maintained high. In addition, since the connection between the pair of terminals is not performed via a plurality of transmission members but by a single member, that is, the second link, there is no need to expect a loss due to a contact state between the transmission members, and as a switch Can be maintained at higher reliability.

請求項３の発明によれば、請求項２と同様の効果を持つ衝撃スイッチが得られる。 According to the invention of claim 3, an impact switch having the same effect as that of claim 2 can be obtained.

請求項４の発明によれば、第２のリンクの回動動作がスムーズとなり、外部から所定の大きさ以上の衝撃を受けたことが機械的な履歴として確実に残る。 According to the fourth aspect of the present invention, the rotation of the second link becomes smooth, and it is reliably left as a mechanical history that an impact of a predetermined magnitude or more is received from the outside.

請求項５の発明によれば、端子片が第１姿勢、第２姿勢又は第３姿勢のいずれにあるかを外部から視認できるので、ユーザは、本スイッチを通電することなく該スイッチが所定の大きさ以上の衝撃を受けたどうかを知ることができる。 According to the invention of claim 5, since it is possible to visually recognize from the outside whether the terminal piece is in the first posture, the second posture, or the third posture, the user does not energize the switch, You can know if you have received an impact that is larger than the size.

（第１の実施形態）
本発明の第１の実施形態に係る衝撃スイッチについて図１乃至図７を参照して説明する。図１乃至図４は本実施形態に係る衝撃スイッチ（以下、本スイッチという）１の構成を示す。以下の説明では、本スイッチ１において後述する本体ケースの蓋部が位置する側、つまり図１における手前側を本スイッチ１の前側とし、後述する収容部の底部が位置する側、つまり図１における奥側を本スイッチ１の後側とする。本スイッチ１は、携帯端末や、ファンヒータ等の燃焼装置、自動車のエアバック装置等の各種機器に作用する衝撃を検知するためのものであり、携帯機器への設置状態では電気的に導通状態にあり、外部から所定の大きさ以上の衝撃を受けると電気的に遮断状態となるものである。本スイッチ１は、本体ケース２と、本体ケース２に互いに離間して配設された一対の端子３ａ、３ｂと、本体ケース２にクリック回動自在に支持されており、端子３ａ、３ｂの各々と当接する一対の接点４ａ、４ｂを有した端子片５とを備える。 (First embodiment)
An impact switch according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 4 show the configuration of an impact switch (hereinafter referred to as the present switch) 1 according to the present embodiment. In the following description, the side where the lid of the main body case, which will be described later, is located in the present switch 1, that is, the front side in FIG. 1, is the front side of the present switch 1, and the side where the bottom of the accommodating portion described later is located, The rear side is the rear side of the switch 1. The switch 1 is for detecting an impact acting on various devices such as a portable terminal, a combustion device such as a fan heater, and an automobile airbag device, and is electrically conductive when installed on the portable device. In this case, when an impact of a predetermined magnitude or more is applied from the outside, the device is electrically cut off. The switch 1 is supported by the main body case 2, a pair of terminals 3 a and 3 b that are spaced apart from each other in the main body case 2, and the main body case 2 so as to be freely clickable. Each of the terminals 3 a and 3 b And a terminal piece 5 having a pair of contact points 4a and 4b.

端子片５は、本体ケース２に回動軸６により回動自在、且つ端子３ａ、３ｂのケース内部分３１、３２側に向けて往復移動自在に支持された第１のリンク７と、第１のリンク７と連結軸８により回動自在に連結され、上述の一対の接点４ａ、４ｂが配された第２のリンク９と、回動軸６を介して第１のリンク７を端子３ａ、３ｂのケース内部分３１、３２側に向けて付勢するバネ部材１０とを備える。ここで、回動軸６及び連結軸８は、第１のリンク７に植立されている。これにより、端子片５は、通常では中立の第１姿勢にあり、一方向から所定の大きさ以上の衝撃を受けることにより第１姿勢からクリック回動して第２姿勢に保持され、さらに他方向から所定の大きさ以上の衝撃を受けることにより第１姿勢から上記とは反対方向にクリック回動して第３姿勢に保持される。第１姿勢、第２姿勢及び第３姿勢については、後に図示する。 The terminal piece 5 includes a first link 7 supported by the main body case 2 so as to be rotatable by the rotation shaft 6 and reciprocally movable toward the case inner portions 31 and 32 of the terminals 3a and 3b. The link 7 and the connecting shaft 8 are rotatably connected to each other, the second link 9 provided with the above-described pair of contacts 4a and 4b, and the first link 7 via the rotating shaft 6 to the terminal 3a, And a spring member 10 that is biased toward the case inner portions 31 and 32 side of 3b. Here, the rotating shaft 6 and the connecting shaft 8 are planted on the first link 7. As a result, the terminal piece 5 is normally in the neutral first posture, and when it receives an impact of a predetermined magnitude or more from one direction, it clicks and rotates from the first posture and is held in the second posture. By receiving an impact of a predetermined magnitude or more from the direction, the click is rotated from the first posture in the opposite direction to the above, and the third posture is held. The first posture, the second posture, and the third posture will be illustrated later.

本体ケース２は、上述の端子３ａ、３ｂ、及び端子片５を収容する前面側が開放された箱型の収容部２１と、収容部２１を覆い収容部２１に対して着脱自在な蓋体２２とを有する。収容部２１及び蓋体２２は、プラスチック等の樹脂部材で成るものである。収容部２１は、底部２１ａと４つの側壁部２１ｂ、２１ｃ、２１ｄ、２１ｅで構成されており、側壁部２１ｃ側には、端子３ａ、３ｂが配設される端子配設部２３と、接点４ａ、４ｂを保持する保持部２４とが一体的に設けられている。保持部２４は、第２のリンク９が接点４ａ、４ｂのうち一方の接点を中心に回動自在となるように、第２のリンク９側が開放された凹状形状となっている。底部２１ａと蓋体２２には、回動軸６が遊嵌される互いに対向したガイド溝２５が形成されており、ガイド溝２５はその方向が一対の端子３ａ、３ｂの並び方向と略垂直となるように形成されている。蓋体２２の中央には、ユーザが連結軸８の位置を外部から目視するための窓２６が形成されている。 The main body case 2 includes a box-shaped accommodation portion 21 whose front side that accommodates the terminals 3a and 3b and the terminal piece 5 is opened, and a lid 22 that covers the accommodation portion 21 and is detachable from the accommodation portion 21. Have The accommodating portion 21 and the lid body 22 are made of a resin member such as plastic. The accommodating part 21 is composed of a bottom part 21a and four side wall parts 21b, 21c, 21d and 21e. On the side of the side wall part 21c, a terminal arrangement part 23 in which terminals 3a and 3b are arranged, and a contact 4a. 4b is integrally provided with a holding portion 24 for holding 4b. The holding portion 24 has a concave shape in which the second link 9 side is opened so that the second link 9 is rotatable around one of the contacts 4a and 4b. The bottom portion 21a and the lid body 22 are formed with guide grooves 25 facing each other in which the rotation shaft 6 is loosely fitted, and the direction of the guide grooves 25 is substantially perpendicular to the arrangement direction of the pair of terminals 3a and 3b. It is formed to become. In the center of the lid 22, a window 26 is formed for the user to visually check the position of the connecting shaft 8 from the outside.

端子３ａ、３ｂは、板状の導電部材で成り、収容部２１の側壁部２１ｃの内面と底部２１ａの背面に沿うように略直角に折り曲げられている。端子３ａ、３ｂの、側壁部２１ｃの内面に沿う部分、つまり上述のケース内部分３１、３２は、底部２１ａを貫通して前方に向かって延在しており、接点４ａ、４ｂとそれぞれ当接する。端子３ａ、３ｂの、底部２１ａの背面に沿う部分３３、３４は、本体ケース２の側方に延出しており、各種機器と接続される。 The terminals 3a and 3b are made of a plate-like conductive member, and are bent at a substantially right angle so as to follow the inner surface of the side wall portion 21c of the housing portion 21 and the back surface of the bottom portion 21a. The portions of the terminals 3a and 3b along the inner surface of the side wall portion 21c, that is, the case inner portions 31 and 32 described above, extend forward through the bottom portion 21a and come into contact with the contacts 4a and 4b, respectively. . Portions 33 and 34 of the terminals 3a and 3b along the back surface of the bottom portion 21a extend to the side of the main body case 2 and are connected to various devices.

第１のリンク７は、板状部材で成り、その一端側には回動軸６が貫入固定され、他端側には連結軸８が貫入固定されている。第２のリンク９は、左右対称の二股形状の導電部材で成り、第１のリンク７の前方に配されている。第２のリンク９の頂部には連結軸８が挿通され、第２のリンク９の二つの足部には接点４ａ、４ｂがそれぞれ配されている。一対の接点４ａ、４ｂとなる二つの足部の先端は、上述の保持部２４の側壁部分と当接可能な円弧形状とされている。 The first link 7 is formed of a plate-like member, and a rotation shaft 6 is fixedly penetrated at one end side, and a connecting shaft 8 is fixedly penetrated at the other end side. The second link 9 is formed of a bifurcated conductive member that is symmetrical to the left and right, and is disposed in front of the first link 7. The connecting shaft 8 is inserted through the top of the second link 9, and the contacts 4 a and 4 b are arranged on the two legs of the second link 9, respectively. The tips of the two legs that form the pair of contacts 4a and 4b have an arc shape that can come into contact with the side wall portion of the holding portion 24 described above.

バネ部材１０は、収容部２１に交換自在に保持されたトーションバネであって、コイル部１１が収容部２１の底部２１ａに形成された突出部２７に挿入され、コイル部１１から延出するバネの一端部１２が、側壁部２１ｂと回動軸６の間に配設されている。バネ部材１０の付勢力は、連結軸８を介して第２のリンク９に伝達され、これにより接点４ａ、４ｂが端子３ａ、３ｂに押圧される。 The spring member 10 is a torsion spring that is exchangeably held in the housing portion 21, and the coil portion 11 is inserted into a protruding portion 27 formed on the bottom portion 21 a of the housing portion 21 and extends from the coil portion 11. Is disposed between the side wall portion 21 b and the rotation shaft 6. The urging force of the spring member 10 is transmitted to the second link 9 via the connecting shaft 8, and thereby the contacts 4a and 4b are pressed against the terminals 3a and 3b.

ここで、本スイッチ１において電気的に遮断状態となる衝撃の大きさ、つまり本器具で検知可能な衝撃加速度の設定値は、バネ部材１０のバネの荷重や、第１のリンク７及び第２のリンク９の形状や重量等によって決定される。 Here, the magnitude of the impact that is electrically interrupted in the switch 1, that is, the set value of the impact acceleration that can be detected by the instrument, is the spring load of the spring member 10, the first link 7 and the second link. This is determined by the shape and weight of the link 9.

次に、上記のように構成された衝撃スイッチ１の動作について図５乃至図７を参照して説明する。図５乃至図７においては、本体ケース２の蓋体２２を省略している。図５は、端子片５が中立な第１姿勢にある状態を示す。携帯機器への設置状態では、端子片５が第１姿勢にあって、第２のリンク９の接点４ａ、４ｂが端子３ａ、３ｂとそれぞれ当接し、一対の端子３ａ、３ｂ間が電気的に導通状態にある。このとき、連結軸８の軸心は、回動軸６の軸心と接点４ａの中心を結ぶ線６１と、回動軸６の軸心と接点４ｂの中心を結ぶ線６２とから成る角を二等分する線６３上に位置している。 Next, the operation of the impact switch 1 configured as described above will be described with reference to FIGS. 5 to 7, the lid 22 of the main body case 2 is omitted. FIG. 5 shows a state in which the terminal piece 5 is in the neutral first posture. In the installation state in the portable device, the terminal piece 5 is in the first posture, the contacts 4a and 4b of the second link 9 are in contact with the terminals 3a and 3b, respectively, and the pair of terminals 3a and 3b are electrically connected. It is in a conductive state. At this time, the axis of the connecting shaft 8 has an angle formed by a line 61 connecting the axis of the rotating shaft 6 and the center of the contact 4a and a line 62 connecting the axis of the rotating shaft 6 and the center of the contact 4b. It lies on a line 63 that bisects.

図６は、端子片５が第２姿勢にある状態を示す。本体ケース２が外部から一対の端子３ａ、３ｂの並び方向に所定の大きさ以上の衝撃を受けることにより、第１のリンク７及び第２のリンク９に端子３ｂから端子３ａに向かう図中矢印Ａの方向に慣性力が働くと、バネ部材１０の付勢力に抗して、第１のリンク７は回動軸６を中心に図中矢印Ｂの方向に回動すると共に、第２のリンク９は接点４ａの中心を軸に図中矢印Ｃの方向に回動する。この第１のリンク７及び第２のリンク９の回動により連結軸８は図中矢印Ｄの方向に移動し、連結軸８の軸心が回動軸６の軸心と接点４ａの中心を結ぶ線６１を越えると、連結軸８はバネ部材１０の付勢力により所定の位置まで移動して停止する。つまり、端子片５が第１姿勢からクリック回動して第２姿勢に保持されることになり、接点４ｂが端子３ｂから離反して一対の端子３ａ、３ｂ間が電気的に遮断状態となる。 FIG. 6 shows a state in which the terminal piece 5 is in the second posture. In the figure, the main body case 2 receives an impact of a predetermined magnitude or more in the direction in which the pair of terminals 3a and 3b are arranged from the outside, and the first link 7 and the second link 9 are directed from the terminal 3b to the terminal 3a. When the inertial force acts in the direction A, the first link 7 rotates about the rotation shaft 6 in the direction of arrow B in the figure against the biasing force of the spring member 10 and the second link. 9 rotates around the center of the contact 4a in the direction of arrow C in the figure. By the rotation of the first link 7 and the second link 9, the connecting shaft 8 moves in the direction of the arrow D in the figure, and the shaft center of the connecting shaft 8 is centered between the shaft center of the rotating shaft 6 and the center of the contact 4a. When the connecting line 61 is exceeded, the connecting shaft 8 moves to a predetermined position by the urging force of the spring member 10 and stops. That is, the terminal piece 5 is click-rotated from the first posture and held in the second posture, the contact 4b is separated from the terminal 3b, and the pair of terminals 3a and 3b are electrically disconnected. .

図７は、端子片５が第３姿勢にある状態を示す。本体ケース２が外部から一対の端子３ａ、３ｂの並び方向に所定の大きさ以上の衝撃を受けることにより、第１のリンク７及び第２のリンク９に端子３ａから端子３ｂに向かう図中矢印Ｅの方向に慣性力が働くと、バネ部材１０の付勢力に抗して第１のリンク７は回動軸６を中心に図中矢印Ｆの方向に回動すると共に、第２のリンク９は接点４ｂの中心を軸に図中矢印Ｇの方向に回動する。この第１のリンク７及び第２のリンク９の回動により連結軸８は図中矢印Ｈの方向に移動し、連結軸８の軸心が回動軸６の軸心と接点４ｂの中心とを結ぶ線６２を越えると、連結軸８はバネ部材１０の付勢力により所定の位置まで移動して停止する。つまり、端子片５が第１姿勢からクリック回動して第３姿勢に保持されることになり、これにより、接点４ａが端子３ａから離反して一対の端子３ａ、３ｂ間が電気的に遮断状態となる。 FIG. 7 shows a state in which the terminal piece 5 is in the third posture. In the figure, the main body case 2 receives an impact of a predetermined magnitude or more in the direction in which the pair of terminals 3a and 3b are arranged from the outside, and the first link 7 and the second link 9 are directed from the terminal 3a to the terminal 3b. When an inertial force acts in the direction E, the first link 7 rotates about the rotation shaft 6 in the direction of the arrow F in the figure against the biasing force of the spring member 10 and the second link 9. Rotates about the center of the contact 4b in the direction of arrow G in the figure. By the rotation of the first link 7 and the second link 9, the connecting shaft 8 moves in the direction of the arrow H in the figure, and the shaft center of the connecting shaft 8 is the center of the rotating shaft 6 and the center of the contact 4b. When the connecting line 8 is crossed, the connecting shaft 8 moves to a predetermined position by the urging force of the spring member 10 and stops. That is, the terminal piece 5 is click-rotated from the first posture and is held in the third posture, whereby the contact 4a is separated from the terminal 3a and the pair of terminals 3a and 3b are electrically disconnected. It becomes a state.

以上のように、本実施形態に係る衝撃スイッチ１によれば、外部から所定の大きさ以上の衝撃を受け、一対の端子３ａ、３ｂ間が電気的に遮断状態となると、その状態が保持されるので、該衝撃を受けたことが機械的な履歴として残る。従って、本スイッチ１が小型・携帯機器に搭載され、上記衝撃を受けたときにそれら機器の電源がオフ状態にあり、本スイッチ１が通電されていない状態であっても、その後に該機器の電源がオンされたとき、該機器がその前に衝撃を受けたことを検知することができ、ひいては、ユーザに対して音声や映像等で対応／対策メッセージ等を告知することが可能となる。 As described above, according to the impact switch 1 according to the present embodiment, when an impact of a predetermined magnitude or more is received from the outside and the pair of terminals 3a and 3b are electrically disconnected, the state is maintained. Therefore, the fact that the impact is received remains as a mechanical history. Therefore, even when the switch 1 is mounted on a small-sized portable device and the device is turned off when the shock is applied and the switch 1 is not energized, When the power is turned on, it is possible to detect that the device has received a shock before that, and as a result, it is possible to notify the user of a response / measure message or the like by voice or video.

また、電気的に遮断状態となると、その状態がバネ部材１０の付勢力により確実に保持されるので、スイッチとしての信頼性を高く維持できる。また、一対の端子間の導通が、複数の伝達部材を経由するのでなくひとつの部材、すなわち第２のリンク９によって行われるため、伝達部材間の接触状態によるロス等を見込む必要が無く、スイッチとしての信頼性が一層高く維持できる。また、本スイッチ１は簡便な構成であるので、低コストである。また、バネ部材１０のバネの荷重を変更することで、本スイッチ１における検知可能な衝撃加速度の設定値を容易に変更できる。また、窓２６が形成されているので、端子片５が第１姿勢、第２姿勢又は第３姿勢のいずれにあるかを外部から視認でき、ユーザは本スイッチ１を通電することなく、該スイッチ１が所定の大きさ以上の衝撃を受けたどうかを知ることができる。 Moreover, since it will be reliably hold | maintained by the urging | biasing force of the spring member 10 if it will be in an electrically interrupted state, the reliability as a switch can be maintained highly. In addition, since the conduction between the pair of terminals is not performed via a plurality of transmission members but by one member, that is, the second link 9, there is no need to expect a loss due to a contact state between the transmission members, and the switch As a result, the reliability can be maintained higher. In addition, since the switch 1 has a simple configuration, the cost is low. Further, by changing the load of the spring of the spring member 10, the set value of the impact acceleration that can be detected by the switch 1 can be easily changed. Further, since the window 26 is formed, it is possible to visually recognize from the outside whether the terminal piece 5 is in the first posture, the second posture, or the third posture, and the user can switch the switch 1 without energizing the switch 1. It is possible to know whether 1 has received an impact of a predetermined magnitude or more.

（第２の実施形態）
本発明の第２の実施形態に係る衝撃スイッチについて図８乃至図１３を参照して説明する。図８乃至図１０は本実施形態に係る衝撃スイッチ１の構成を示す。本実施形態において、端子片５は、本体ケース２に回動軸６により回動自在に支持され、上述したバネ部材１０の機能を有した第１のリンク７と、上述と同様の第２のリンク９とを備える。第１のリンク７は、２本の腕部７１、７２を有したねじりコイルバネで成り、一方の腕部７１に回動軸６が掛合されると共に他方の腕部７２に連結軸８が掛合されている。ここで、回動軸６は本体ケース２の収容部の底部２１ａに植立されており、連結軸８は第２のリンク９に植立されている。第１のリンク７は、第２のリンク９を端子３ａ、３ｂのケース内部分３１、３２側に向けて付勢し、接点４ａ、４ｂを端子３ａ、３ｂに押圧させる。その他の構成については第１の実施形態と同様である。 (Second Embodiment)
An impact switch according to a second embodiment of the present invention will be described with reference to FIGS. 8 to 10 show the configuration of the impact switch 1 according to the present embodiment. In the present embodiment, the terminal piece 5 is rotatably supported by the main body case 2 by the rotation shaft 6 and has the first link 7 having the function of the spring member 10 described above and the second link similar to the above. And a link 9. The first link 7 is composed of a torsion coil spring having two arm portions 71 and 72, and the rotation shaft 6 is engaged with one arm portion 71 and the connection shaft 8 is engaged with the other arm portion 72. ing. Here, the rotating shaft 6 is planted on the bottom 21 a of the housing portion of the main body case 2, and the connecting shaft 8 is planted on the second link 9. The first link 7 urges the second link 9 toward the case inner portions 31 and 32 of the terminals 3a and 3b, and presses the contacts 4a and 4b against the terminals 3a and 3b. Other configurations are the same as those in the first embodiment.

次に、上記のように構成された衝撃スイッチ１の動作について図１１乃至図１３を参照して説明する。図１１乃至図１３においては、本体ケース２の蓋体２２を省略している。図１１は、端子片５が中立な第１姿勢にある状態を示す。携帯機器への設置状態では、端子片５が第１姿勢にあって、第２のリンク９の接点４ａ、４ｂが端子３ａ、３ｂとそれぞれ当接し、一対の端子３ａ、３ｂ間が電気的に導通状態にある。このとき、連結軸８の軸心は、回動軸６の軸心と接点４ａの中心を結ぶ線６１と、回動軸６の軸心と接点４ｂの中心を結ぶ線６２とから成る角を二等分する線６３上に位置している。 Next, the operation of the impact switch 1 configured as described above will be described with reference to FIGS. 11 to 13, the lid 22 of the main body case 2 is omitted. FIG. 11 shows a state in which the terminal piece 5 is in the neutral first posture. In the installation state in the portable device, the terminal piece 5 is in the first posture, the contacts 4a and 4b of the second link 9 are in contact with the terminals 3a and 3b, respectively, and the pair of terminals 3a and 3b are electrically connected. It is in a conductive state. At this time, the axis of the connecting shaft 8 has an angle formed by a line 61 connecting the axis of the rotating shaft 6 and the center of the contact 4a and a line 62 connecting the axis of the rotating shaft 6 and the center of the contact 4b. It lies on a line 63 that bisects.

図１２は、端子片５が第２姿勢にある状態を示す。第１の実施形態と同様に本体ケース２が衝撃を受けることにより、第１のリンク７及び第２のリンク９に端子３ｂから端子３ａに向かう図中矢印Ａの方向に慣性力が働くと、第１のリンク７は回動軸６を中心に図中矢印Ｂの方向に回動すると共に、第１のリンク７の付勢力に抗して第２のリンク９は接点４ａの中心を軸に図中矢印Ｃの方向に回動する。これにより、連結軸８は図中矢印Ｄの方向に移動し、連結軸８の軸心が上記線６１を越えると、連結軸８は第１のリンク７の付勢力により所定の位置まで移動して停止する。つまり、端子片５が第１姿勢からクリック回動して第２姿勢に保持されることになり、接点４ｂが端子３ｂから離反して一対の端子３ａ、３ｂ間が電気的に遮断状態となる。 FIG. 12 shows a state in which the terminal piece 5 is in the second posture. When the body case 2 receives an impact as in the first embodiment, an inertial force acts on the first link 7 and the second link 9 in the direction of arrow A in the figure from the terminal 3b to the terminal 3a. The first link 7 rotates about the rotation shaft 6 in the direction of the arrow B in the figure, and the second link 9 resists the urging force of the first link 7 about the center of the contact 4a. It rotates in the direction of arrow C in the figure. As a result, the connecting shaft 8 moves in the direction of arrow D in the figure. When the axis of the connecting shaft 8 exceeds the line 61, the connecting shaft 8 moves to a predetermined position by the urging force of the first link 7. And stop. That is, the terminal piece 5 is click-rotated from the first posture and held in the second posture, the contact 4b is separated from the terminal 3b, and the pair of terminals 3a and 3b are electrically disconnected. .

図１３は、端子片５が第３姿勢にある状態を示す。上述と同様に本体ケース２が衝撃を受けることにより、第１のリンク７及び第２のリンク９に端子３ａから端子３ｂに向かう図中矢印Ｅの方向に慣性力が働くと、第１のリンク７は回動軸６を中心に図中矢印Ｆの方向に回動すると共に、第１のリンク７の付勢力に抗して第２のリンク９は接点４ｂの中心を軸に図中矢印Ｇの方向に回動する。これにより連結軸８は図中矢印Ｈの方向に移動し、連結軸８の軸心が上記線６２を越えると、連結軸８はバネ部材１０の付勢力により所定の位置まで移動して停止する。つまり、端子片５が第１姿勢からクリック回動して第３姿勢に保持されることになり、これにより、接点４ａが端子３ａから離反して一対の端子３ａ、３ｂ間が電気的に遮断状態となる。以上により、本実施形態の衝撃スイッチ１においても、第１の実施形態と同様の効果が得られる。 FIG. 13 shows a state in which the terminal piece 5 is in the third posture. When the body case 2 receives an impact in the same manner as described above, an inertial force acts on the first link 7 and the second link 9 in the direction of the arrow E in the figure from the terminal 3a to the terminal 3b. 7 rotates around the rotation shaft 6 in the direction of arrow F in the figure, and the second link 9 resists the urging force of the first link 7 and the arrow G in the figure around the center of the contact 4b. It rotates in the direction of. As a result, the connecting shaft 8 moves in the direction of the arrow H in the figure, and when the axis of the connecting shaft 8 exceeds the line 62, the connecting shaft 8 moves to a predetermined position by the urging force of the spring member 10 and stops. . That is, the terminal piece 5 is click-rotated from the first posture and is held in the third posture, whereby the contact 4a is separated from the terminal 3a and the pair of terminals 3a and 3b are electrically disconnected. It becomes a state. As described above, also in the impact switch 1 of the present embodiment, the same effects as those of the first embodiment can be obtained.

なお、本発明は、上記実施形態の構成に限られず、発明の趣旨を変更しない範囲で種々の変形が可能である。例えば、バネ部材１０は、側壁部２１ｂと回動軸６の間に設けられた圧縮コイルバネであってもよい。また、収容部２１及び蓋体２２は、連結軸８の位置を外部から目視できるように透明部材で成るものであってもよい。 In addition, this invention is not restricted to the structure of the said embodiment, A various deformation | transformation is possible in the range which does not change the meaning of invention. For example, the spring member 10 may be a compression coil spring provided between the side wall portion 21 b and the rotation shaft 6. Moreover, the accommodating part 21 and the cover body 22 may be made of a transparent member so that the position of the connecting shaft 8 can be seen from the outside.

本発明の第１の実施形態に係る衝撃スイッチを前側から視た斜視図。The perspective view which looked at the impact switch which concerns on the 1st Embodiment of this invention from the front side. 上記衝撃スイッチの蓋体を除いて前側から視た斜視図。The perspective view seen from the front side except the lid of the above-mentioned impact switch. 上記衝撃スイッチを後側から視た斜視図。The perspective view which looked at the said impact switch from the rear side. 第１のリンクと本体ケースとの連結構成、及び第１のリンクと第２のリンクとの連結構成を示す断面斜視図。The cross-sectional perspective view which shows the connection structure of a 1st link and a main body case, and the connection structure of a 1st link and a 2nd link. 上記衝撃スイッチにおいて端子片が第１姿勢にある状態の平面図。The top view of the state which has a terminal piece in a 1st attitude | position in the said impact switch. 上記衝撃スイッチにおいて端子片が第２姿勢にある状態の平面図。The top view of the state which has a terminal piece in a 2nd attitude | position in the said impact switch. 上記衝撃スイッチにおいて端子片が第３姿勢にある状態の平面図。The top view of the state which has a terminal piece in a 3rd attitude | position in the said impact switch. 本発明の第２の実施形態に係る衝撃スイッチを前側から視た斜視図。The perspective view which looked at the impact switch which concerns on the 2nd Embodiment of this invention from the front side. 上記衝撃スイッチの蓋体を除いて前側から視た斜視図。The perspective view seen from the front side except the lid of the above-mentioned impact switch. 上記衝撃スイッチを後側から視た斜視図。The perspective view which looked at the said impact switch from the rear side. 上記衝撃スイッチにおいて端子片が第１姿勢にある状態の平面図。The top view of the state which has a terminal piece in a 1st attitude | position in the said impact switch. 上記衝撃スイッチにおいて端子片が第２姿勢にある状態の平面図。The top view of the state which has a terminal piece in a 2nd attitude | position in the said impact switch. 上記衝撃スイッチにおいて端子片が第３姿勢にある状態の平面図。The top view of the state which has a terminal piece in a 3rd attitude | position in the said impact switch.

符号の説明Explanation of symbols

１衝撃スイッチ
２本体ケース
３ａ、３ｂ端子
４ａ、４ｂ接点
５端子片
６回動軸
７第１のリンク
８連結軸
９第２のリンク
１０バネ部材
２３端子配設部
２４保持部
７１、７２腕部 DESCRIPTION OF SYMBOLS 1 Impact switch 2 Main body case 3a, 3b Terminal 4a, 4b Contact 5 Terminal piece 6 Rotating shaft 7 First link 8 Connection shaft 9 Second link 10 Spring member 23 Terminal arrangement part 24 Holding part 71, 72 Arm part

Claims

携帯機器への設置状態では電気的に導通状態にあり、外部から所定の大きさ以上の衝撃を受けると電気的に遮断状態となる衝撃スイッチであって、
本体ケースに互いに離間して配設された一対の端子と、
前記本体ケースにクリック回動自在に支持されており、前記端子の各々と当接する一対の接点を有した端子片とを備え、
前記端子片は、通常では中立の第１姿勢にあり、一方向から所定の大きさ以上の衝撃を受けることにより該第１姿勢からクリック回動して第２姿勢に保持され、又は他方向から所定の大きさ以上の衝撃を受けることにより前記第１姿勢から前記とは反対方向にクリック回動して第３姿勢に保持されるように構成され、
携帯機器への設置状態では、前記端子片が前記第１姿勢にあって、前記一対の接点が前記一対の端子とそれぞれ当接して電気的に導通状態にあり、
前記本体ケースが外部から所定の大きさ以上の衝撃を受けたとき、前記端子片に慣性力が働き、該端子片が前記第１姿勢からクリック回動して前記第２姿勢又は第３姿勢に保持され、前記いずれかの接点が前記一対の端子から離反して電気的に遮断状態となることを特徴とする衝撃スイッチ。 An impact switch that is in an electrically conductive state when installed in a portable device and that is electrically disconnected when receiving an impact of a predetermined size or more from the outside,
A pair of terminals disposed apart from each other in the main body case;
The main body case is supported so as to be able to click and rotate, and includes a terminal piece having a pair of contacts that contact each of the terminals,
The terminal piece is normally in a neutral first posture, and when it receives an impact of a predetermined magnitude or more from one direction, the terminal piece is click-rotated from the first posture and held in the second posture, or from the other direction. By being subjected to an impact of a predetermined magnitude or more and configured to click and rotate in the opposite direction from the first posture to be held in the third posture,
In the installation state in the portable device, the terminal piece is in the first posture, and the pair of contacts are in contact with the pair of terminals and are in an electrically conductive state,
When the body case receives an impact of a predetermined magnitude or more from the outside, an inertial force acts on the terminal piece, and the terminal piece clicks and rotates from the first posture to the second posture or the third posture. An impact switch, wherein one of the contacts is separated from the pair of terminals and is electrically disconnected.

前記端子片は、前記本体ケースに回動軸により回動自在、且つ前記端子側に向けて往復移動自在に支持された第１のリンクと、前記第１のリンクと連結軸により回動自在に連結され、前記一対の接点が配された第２のリンクと、前記第１のリンクを前記端子側に向けて付勢し、前記連結軸を介して前記接点を前記端子に押圧させるバネ部材とで構成され、
前記本体ケースが外部から前記一対の端子の並び方向に所定の大きさ以上の衝撃を受けたとき、前記端子片に慣性力が働き、前記バネ部材の付勢力に抗して前記第１のリンクは前記回動軸を中心に回動すると共に、前記第２のリンクは前記一方の接点を中心に回動して前記連結軸は移動し、該連結軸の軸心が前記回動軸と前記一方の接点とを結ぶ線を越えると、前記連結軸は前記バネ部材の付勢力により所定の位置まで移動して停止し、これにより前記端子片が前記第２姿勢又は第３姿勢に保持され、前記他方の接点が該接点に対応する端子から離反して電気的に遮断状態となることを特徴とする請求項１に記載の衝撃スイッチ。 The terminal piece is rotatable on the main body case by a rotating shaft and supported by the first link and a connecting shaft so as to be reciprocally movable toward the terminal side. A second link that is connected and provided with the pair of contacts; a spring member that urges the first link toward the terminal and presses the contact against the terminal via the connection shaft; Consists of
When the main body case receives an impact of a predetermined magnitude or more in the direction in which the pair of terminals are arranged from the outside, an inertial force acts on the terminal piece, and the first link resists the biasing force of the spring member. Rotates about the rotation axis, the second link rotates about the one contact point, the connection shaft moves, and the axis of the connection shaft moves between the rotation axis and the rotation axis. When the line connecting the one contact point is exceeded, the connecting shaft moves to a predetermined position by the biasing force of the spring member and stops, whereby the terminal piece is held in the second posture or the third posture, The impact switch according to claim 1, wherein the other contact is separated from a terminal corresponding to the contact and is electrically disconnected.

前記端子片は、前記本体ケースに回動軸により回動自在に支持された第１のリンクと、前記第１のリンクと連結軸により回動自在に連結され、前記一対の接点が配された第２のリンクとで構成され、
前記第１のリンクは、２本の腕部を有したねじりコイルバネで成り、一方の腕部に前記回動軸が掛合されると共に他方の腕部に前記連結軸が掛合され、前記第２のリンクを前記端子側に向けて付勢して前記接点を前記端子に押圧させ、
前記本体ケースが外部から前記一対の端子の並び方向に所定の大きさ以上の衝撃を受けたとき、前記端子片に慣性力が働き、前記第１のリンクは前記回動軸を中心に回動すると共に、該第１のリンクの付勢力に抗して前記第２のリンクは前記一方の接点を中心に回動して前記連結軸は移動し、該連結軸の軸心が前記回動軸と前記一方の接点とを結ぶ線を越えると、前記連結軸は前記第１のリンクの付勢力により所定の位置まで移動して停止し、これにより前記端子片が前記第２姿勢又は第３姿勢に保持され、前記他方の接点が該接点に対応する端子から離反して電気的に遮断状態となることを特徴とする請求項１に記載の衝撃スイッチ。 The terminal piece is rotatably connected to the main body case by a rotating shaft, and is rotatably connected to the first link by a connecting shaft, and the pair of contacts are arranged. A second link,
The first link is formed of a torsion coil spring having two arm portions, the rotation shaft is engaged with one arm portion and the connection shaft is engaged with the other arm portion, Energizing the link toward the terminal side to press the contact against the terminal,
When the body case receives an impact of a predetermined magnitude or more in the direction in which the pair of terminals are arranged from the outside, an inertial force acts on the terminal pieces, and the first link rotates around the rotation axis. In addition, the second link rotates about the one contact point against the urging force of the first link, the connecting shaft moves, and the axis of the connecting shaft is the rotating shaft. When the line connecting the one contact point and the one contact point is exceeded, the connecting shaft moves to a predetermined position by the biasing force of the first link and stops, so that the terminal piece is in the second posture or the third posture. The impact switch according to claim 1, wherein the other contact is separated from a terminal corresponding to the contact and is electrically cut off.

前記第２のリンクは、二股形状の導電部材で成り、その頂部に前記連結軸が配されると共に二つの足部に前記一対の接点がそれぞれ配されており、
前記足部は、前記本体ケースの前記端子配設部に隣接して設けられた保持部に回動自在、且つ該端子片が回動するときに前記接点が干渉しないように保持されることを特徴とする請求項１乃至請求項３のいずれか一項に記載の衝撃スイッチ。 The second link is formed of a bifurcated conductive member, the connecting shaft is disposed on the top thereof, and the pair of contacts are disposed on two feet,
The foot portion is rotatably held by a holding portion provided adjacent to the terminal arrangement portion of the main body case, and is held so that the contact does not interfere when the terminal piece rotates. The impact switch according to any one of claims 1 to 3, wherein the shock switch is characterized in that:

前記本体ケースは、前記連結軸の位置を外部から目視できるように形成されていることを特徴とする請求項１乃至請求項４のいずれか一項に記載の衝撃スイッチ。 The impact switch according to any one of claims 1 to 4, wherein the main body case is formed so that a position of the connecting shaft can be seen from the outside.