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JP5564196B2 - measuring device - Google Patents
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JP5564196B2 - measuring device - Google Patents

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JP5564196B2
JP5564196B2 JP2009104588A JP2009104588A JP5564196B2 JP 5564196 B2 JP5564196 B2 JP 5564196B2 JP 2009104588 A JP2009104588 A JP 2009104588A JP 2009104588 A JP2009104588 A JP 2009104588A JP 5564196 B2 JP5564196 B2 JP 5564196B2
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cam
support member
rotation
tilt
detector
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JP2010256096A (en
JP2010256096A5 (en
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麻紗子 橋本
章宏 伊藤
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Nidec Instruments Corp
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Nidec Sankyo Corp
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Description

本発明は測定装置に関するものであり、詳しくは、センサや撮像装置による熱画像を用いた輻射温度検出を行うことができる測定装置に関するものである。   The present invention relates to a measuring apparatus, and more particularly, to a measuring apparatus capable of detecting a radiation temperature using a thermal image by a sensor or an imaging apparatus.

従来、各種センサや撮像装置などといった検出器の向きを切り替えることができる測定装置が知られている。たとえば、特許文献1には、赤外線アレイセンサが形成された回転部の回転軸とステッピングモータとが機械的に接続され、この回転部が回転軸周りに回転可能に構成されている。このような構成によれば、回転軸を回転させることにより赤外線アレイセンサが形成された回転部が回転するから、回転部の回転方向の広範囲にわたって輻射温度検出を行うことができる。   2. Description of the Related Art Conventionally, measuring devices that can change the orientation of detectors such as various sensors and imaging devices are known. For example, in Patent Document 1, a rotating shaft of a rotating portion on which an infrared array sensor is formed and a stepping motor are mechanically connected, and the rotating portion is configured to be rotatable around the rotating shaft. According to such a configuration, since the rotating unit on which the infrared array sensor is formed rotates by rotating the rotating shaft, the radiation temperature can be detected over a wide range in the rotating direction of the rotating unit.

しかしながら、特許文献1に記載の構成では、赤外線アレイセンサは回転動作しか許容されておらず、回転方向に直交する方向に移動させることができない。このため、赤外線アレイセンサの回転方向に直交する方向の測定範囲が小さく、充分に測定を行うことができないという問題点を有する。   However, in the configuration described in Patent Document 1, the infrared array sensor is only allowed to rotate, and cannot be moved in a direction orthogonal to the rotation direction. For this reason, there is a problem that the measurement range in the direction orthogonal to the rotation direction of the infrared array sensor is small, and sufficient measurement cannot be performed.

回転方向と直交する方向への測定範囲を確保する構成としては、たとえば特許文献2に開示される構成がある。特許文献2には、複数の焦電型熱検出素子を、回転方向に直角な方向に直列的に配設する構成が開示されている。このような構成によれば、焦電型熱検出素子群を回転させることにより、回転方向に広範囲にわたって測定を行うことができるとともに、焦電型熱検出素子群の配列方向にも測定範囲を拡げることが可能となる。しかしながら特許文献2に記載の構成では、複数の焦電型熱検出素子が必要となる。   As a configuration for ensuring a measurement range in a direction orthogonal to the rotation direction, there is a configuration disclosed in Patent Document 2, for example. Patent Document 2 discloses a configuration in which a plurality of pyroelectric heat detection elements are arranged in series in a direction perpendicular to the rotation direction. According to such a configuration, by rotating the pyroelectric heat detection element group, measurement can be performed over a wide range in the rotation direction, and the measurement range can be expanded in the arrangement direction of the pyroelectric heat detection element group. It becomes possible. However, the configuration described in Patent Document 2 requires a plurality of pyroelectric heat detection elements.

特開平5−1954号公報JP-A-5-1954 特開平6−94535号公報JP-A-6-94535

上記実情に鑑み、本発明が解決しようとする課題は、複数の検出素子を用いることなく
、測定範囲を確保することができる測定装置を提供すること、または、複数の検出素子を
用いることなく、回転方向および回転方向に直交する方向への測定範囲を確保することができる測定装置
を提供することである。
In view of the above situation, the problem to be solved by the present invention is to provide a measuring device that can ensure a measurement range without using a plurality of detection elements, or without using a plurality of detection elements, It is an object of the present invention to provide a measuring apparatus capable of ensuring a measurement range in a rotation direction and a direction orthogonal to the rotation direction.

前記課題を解決するため、本発明は、検出器と、該検出器の向きを可変可能に支持する支持部材と、該支持部材を駆動して前記検出器の向きを可変させる駆動部材と、を有する測定装置であって、前記駆動部材は、自らの支承部によって回動および傾倒可能に支持された前記支持部材に当接して該支持部材を回動させる回動部と前記支持部材を傾倒させる傾倒部とを有し、前記支持部材は、前記傾倒部としての傾倒カムが当接する傾倒当接部を有していることを要旨とするものである。なお、駆動部材は、必ずしも一部材によって形成する必要はない。すなわち、回動部が形成された部材と傾倒部が形成された部材との2部材により形成してもよい。このように、傾倒部として傾倒カムを採用し、支持部材の傾倒当接部により支持部材を傾倒させることで、支持部材を簡略な構成により傾倒させることができる。 In order to solve the above-described problems, the present invention provides a detector, a support member that variably supports the direction of the detector, and a drive member that drives the support member to change the direction of the detector. The driving member includes a rotating unit that rotates the supporting member by tilting the supporting member by contacting the supporting member that is supported by the supporting unit so that the driving member can rotate and tilt. possess a tilting unit, wherein the support member is one in which tilting cam as the tilting unit is summarized in that it has a tilting abutment portion abutting. Note that the driving member is not necessarily formed by a single member. That is, you may form by two members, the member in which the rotation part was formed, and the member in which the inclination part was formed . Thus, the support member can be tilted with a simple configuration by using the tilt cam as the tilt portion and tilting the support member by the tilt contact portion of the support member.

前記支持部材は、前記回動部としての動カムが当接する回動当接部を有していることが好ましい。このように、回動部として回動カムを採用し、支持部材の回動当接部により支持部材を回動させることで、支持部材を簡略な構成により回動させることができる。
The support member is preferably pivoting cam as the rotating portion has a contact with rotating abutment. As described above, the support member can be rotated with a simple configuration by adopting the rotation cam as the rotation portion and rotating the support member by the rotation contact portion of the support member.

前記支承部は、回動および傾倒が可能な支点であって、前記支承部と前記傾倒当接部が前記傾倒カムに係合する係合部とを通る直線が、径方向にのみ移動可能に前記支持部材をガイドするガイド部を有し、該ガイド部によって前記支持部材が前記傾倒カムの回動に伴って径方向に移動し、前記支持部材が傾倒することが好ましい。このように構成すると、ガイド部によって、支承部と傾倒当接部が傾倒カムに係合する係合部とを通る直線が、径方向にのみ移動可能で、それ以外の方向への移動を阻止することができるので、支持部材が傾倒カムの回動に伴い共回りを防止するとともに径方向にスムーズに移動させることができる。   The support portion is a fulcrum that can be rotated and tilted, and a straight line passing through the support portion and the engaging portion where the tilt contact portion engages with the tilt cam is movable only in the radial direction. It is preferable that a guide portion that guides the support member is provided, the support member moves in the radial direction as the tilt cam rotates, and the support member tilts. If comprised in this way, the straight line which passes along the engaging part with which a support part and a tilting contact part engage with a tilting cam can be moved only to radial direction by a guide part, and the movement to other directions is blocked | prevented Therefore, the supporting member can be prevented from co-rotation with the rotation of the tilting cam and can be smoothly moved in the radial direction.

前記ガイド部を有するケース体に、前記支承部を支持する支持部を形成し、前記支持部材を回動および傾倒が可能に支持させたことが好ましい。   It is preferable that a support portion for supporting the support portion is formed on the case body having the guide portion, and the support member is supported so as to be rotatable and tiltable.

前記傾倒カムは溝カムであって、該溝カムによって前記傾倒当接部の径方向の位置が規制されることが好ましい。このように、傾倒当接部は溝カムによって径方向の位置が規制されるとともに、ガイド部によって径方向にのみ移動が可能に構成されるので、溝カムとガイド部とによって傾倒当接部の径方向と周方向における位置が規制され、支持部材を確実に傾倒させることができる。   It is preferable that the tilt cam is a groove cam, and the position of the tilt contact portion in the radial direction is regulated by the groove cam. As described above, the tilt contact portion is configured such that the radial position is regulated by the groove cam and can be moved only in the radial direction by the guide portion. The positions in the radial direction and the circumferential direction are restricted, and the support member can be reliably tilted.

前記回動部としての回動カムと前記傾倒部としての傾倒カムとは、共にカム部材の同一平面に形成されていることが好ましい。このように回動カムと傾倒カムとを同一平面に形成することにより、軸方向への短縮化が図れる。   It is preferable that the turning cam as the turning portion and the tilting cam as the tilting portion are both formed on the same plane of the cam member. Thus, by forming the rotating cam and the tilting cam on the same plane, the axial direction can be shortened.

前記カム部材は回動可能に構成され、該カム部材の回動中心の内側に傾倒カムを配設するとともに外側に回動カムを配設した構成であることが好ましい。このように構成すると、測定装置として例えば家庭内の居室の温度センサに適用される場合、居室の垂直方向(奥行き方向)と水平方向とでは測定範囲が異なっており、水平方向の方が測定範囲が広いときには、測定範囲が広い方を、支持部材が回動カムにより駆動された側で測定するようにすれば、回動カムは傾倒カムより駆動量が大きいので、位置精度を向上させることができる。   It is preferable that the cam member is configured to be rotatable, and a tilt cam is disposed inside a rotation center of the cam member and a rotation cam is disposed outside. If comprised in this way, when applied to a temperature sensor of a living room in a home as a measuring device, for example, the measuring range is different in the vertical direction (depth direction) and the horizontal direction of the living room, and the horizontal direction is the measuring range. However, if the support member is measured on the side where the support member is driven by the rotating cam, the rotating cam has a larger driving amount than the tilting cam, so that the positional accuracy can be improved. it can.

前記支持部材を前記支持部に付勢する付勢手段を有していることが好ましい。このように構成すれば、付勢手段により支持部材と支持部とを常に当接させて支持部材を回動または傾倒させることにより、円滑な動作を実現させることができる。しかも、付勢手段により支持部材の意図しない回転を抑制することができる。ここで意図しない回転とは、回転動力源から伝達される回転動力以外による回転をいうものとする。例えば、回転動力源以外の外力による回転や、検出器の支持部材の慣性による回転などが挙げられる。   It is preferable that biasing means for biasing the support member toward the support portion is provided. If comprised in this way, smooth operation | movement can be implement | achieved by always making a support member and a support part contact | abut by an urging | biasing means, and rotating or tilting a support member. Moreover, unintended rotation of the support member can be suppressed by the urging means. Here, unintended rotation refers to rotation other than rotational power transmitted from a rotational power source. For example, rotation by an external force other than the rotational power source, rotation by the inertia of the support member of the detector, and the like can be mentioned.

前記支持部材は、前記付勢手段とは異なるフリクション機構を介して支持部に支持されていることが好ましい。このように構成すると、付勢手段とは異なるフリクション機構を有しているので、支持部材の意図しない回転を抑制するために必要な負荷を考慮して付勢手段の付勢力を設定する必要がなく、付勢手段の付勢力を最小にすることができる。したがって、支持部材の支持部に対する付勢力を最小にすることにより、摺動ロスを抑制し、摺動部の耐久性、駆動部材を駆動する駆動源の駆動力を小さくすることができる。   The support member is preferably supported by a support portion via a friction mechanism different from the biasing means. With such a configuration, since the friction mechanism is different from that of the urging means, it is necessary to set the urging force of the urging means in consideration of a load necessary for suppressing unintended rotation of the support member. In addition, the biasing force of the biasing means can be minimized. Therefore, by minimizing the urging force of the support member to the support portion, it is possible to suppress the sliding loss and reduce the durability of the slide portion and the driving force of the drive source that drives the drive member.

本発明によれば、検出器を支持する支持部材が、傾倒カムによって回転出力軸に直交する方向へ傾倒することができる。したがって、検出器を支持する支持部材を回転させるだけの構成に比較して、測定範囲を広くすることができる(回転方向に直交する方向にも測定範囲を拡げることができる)。また、単一の検出器を用いる構成であっても、回転方向に直交する方向に測定範囲を拡げることができるから、複数の検出器を備える構成としなくとも、測定範囲を拡げることができる。また、傾倒カムの形状を変えることで、検出器の軌跡を様々に変えることができ、測定範囲を拡げることができる。   According to the present invention, the support member that supports the detector can be tilted in the direction orthogonal to the rotation output shaft by the tilt cam. Therefore, the measurement range can be widened compared to a configuration in which the support member that supports the detector is simply rotated (the measurement range can be expanded in a direction orthogonal to the rotation direction). Moreover, even if it is the structure using a single detector, since a measurement range can be expanded in the direction orthogonal to a rotation direction, even if it is not set as a structure provided with a some detector, a measurement range can be expanded. Further, by changing the shape of the tilt cam, the locus of the detector can be changed variously, and the measurement range can be expanded.

本発明の第一実施形態にかかる測定装置の要部の構成を、模式的に示した分解斜視図である。It is the disassembled perspective view which showed typically the structure of the principal part of the measuring apparatus concerning 1st embodiment of this invention. カム部材の構成を模式的に示した図であり、(a)は平面図、(b)は外観斜視図である。It is the figure which showed the structure of the cam member typically, (a) is a top view, (b) is an external appearance perspective view. ケーシングの構成を模式的に示した外観斜視図である。It is the external appearance perspective view which showed the structure of the casing typically. 検出器の支持部材の傾倒当接部と、ケーシングの内部に形成されるガイド部と、カム部材の傾倒カム(溝カム)との係合関係を、模式的に示した斜視図である。It is the perspective view which showed typically the engagement relationship of the inclination contact part of the support member of a detector, the guide part formed in the inside of a casing, and the inclination cam (groove cam) of a cam member. 本発明の第一の実施形態にかかる測定装置の動作を模式的に示した平面図である。It is the top view which showed typically operation | movement of the measuring apparatus concerning 1st embodiment of this invention. 本発明の第一の実施形態にかかる測定装置の動作を模式的に示した平面図である。It is the top view which showed typically operation | movement of the measuring apparatus concerning 1st embodiment of this invention. 本発明の第一の実施形態にかかる測定装置の動作を模式的に示した平面図である。It is the top view which showed typically operation | movement of the measuring apparatus concerning 1st embodiment of this invention. 検出器の軌跡の変形例を模式的に示した平面図である。It is the top view which showed the modification of the locus | trajectory of a detector typically. カム部材の変形例を模式的に示した平面図である。It is the top view which showed the modification of the cam member typically. 本発明の第二の実施形態にかかる測定装置の構成を模式的に示した外観斜視図である。It is the external appearance perspective view which showed typically the structure of the measuring apparatus concerning 2nd embodiment of this invention.

以下に、本発明の各種実施形態について、図面を参照して詳細に説明する。   Hereinafter, various embodiments of the present invention will be described in detail with reference to the drawings.

図1は、本発明の第一の実施形態にかかる測定装置1aの要部の構成を、模式的に示した分解斜視図である。図1に示すように、本発明の第一の実施形態にかかる測定装置1aは、回転動力源11と、検出器12(熱センサなど)と、検出器12の支持部材13と、ケーシング14と、蓋体15と、駆動部材としてのカム部材16aと、回転防止手段としての締め付けコイルバネ17と、ワッシャ18と、付勢手段としてのコイルバネ19と、回転規制部材20と、支承部支持部材21とを備える。   FIG. 1 is an exploded perspective view schematically showing a configuration of a main part of the measuring apparatus 1a according to the first embodiment of the present invention. As shown in FIG. 1, the measuring apparatus 1 a according to the first embodiment of the present invention includes a rotational power source 11, a detector 12 (such as a heat sensor), a support member 13 for the detector 12, a casing 14, and the like. The lid 15, the cam member 16 a as the driving member, the tightening coil spring 17 as the rotation preventing means, the washer 18, the coil spring 19 as the urging means, the rotation restricting member 20, and the bearing support member 21 Is provided.

回転動力源11には、従来公知の各種モータが適用できる。たとえば、従来公知の各種ステッピングモータが適用できる。   Various conventionally known motors can be applied to the rotational power source 11. For example, various conventionally known stepping motors can be applied.

検出器12(熱センサなど)には、従来公知の各種熱センサが適用できる。たとえば、従来公知の焦電型熱検出素子が適用できる。なお、本発明の第一の実施形態にかかる測定装置は、一個(単数)の検出器を備える構成を有する。   Various conventionally known thermal sensors can be applied to the detector 12 (thermal sensor or the like). For example, a conventionally known pyroelectric heat detection element can be applied. The measurement apparatus according to the first embodiment of the present invention has a configuration including one (single) detector.

検出器12の支持部材13は、検出器12(熱センサなど)を支持する部材である。検出器12の支持部材13は、検出器12が配設されて固定される筐体131と、この筐体131から突出する軸状の傾倒当接部133と、同じくこの筐体131から突出する軸状の回動当接部135とを有する。検出器12の支持部材13の筐体131は、略円筒形状に形成されるとともに、この検出器12の支持部材13の筐体131の一端側は、略半球形状に形成される。すなわち、検出器12の支持部材13の筐体131は、円筒と半球が接合された構成を有する。そして、この略半球形状に形成される部分に、検出器12(熱センサなど)が配設されて固定される。また、この筐体131の一端(すなわち、略半球形状に形成される部分の頂点)には、小径の略半球形状の支承部132が形成される。   The support member 13 of the detector 12 is a member that supports the detector 12 (such as a heat sensor). The support member 13 of the detector 12 protrudes from the housing 131 in which the detector 12 is disposed and fixed, the shaft-shaped tilting contact portion 133 projecting from the housing 131, and the housing 131. And an axial rotation contact portion 135. The housing 131 of the support member 13 of the detector 12 is formed in a substantially cylindrical shape, and one end side of the housing 131 of the support member 13 of the detector 12 is formed in a substantially hemispherical shape. That is, the housing 131 of the support member 13 of the detector 12 has a configuration in which a cylinder and a hemisphere are joined. And the detector 12 (thermal sensor etc.) is arrange | positioned and fixed to the part formed in this substantially hemispherical shape. In addition, a small-diameter substantially hemispherical support portion 132 is formed at one end of the casing 131 (that is, the apex of a portion formed in a substantially hemispherical shape).

検出器12の支持部材13の筐体131の他端(円筒形状に形成される側の端部)には、軸状に突出する傾倒当接部133と、同じく軸状に突出する回動当接部135とが形成される。傾倒当接部133は、検出器12の支持部材13の筐体131の中心線(軸線)と略一致する中心線(軸線)を有するものであり、断面略円形に形成される。なお、支承部132は、筐体131の中心線(軸線)上に形成されている。傾倒当接部133の先端は、後述する傾倒カム(溝カム)161に係合可能に形成される。たとえば図1に示すように、傾倒当接部133の先端には、略球形状の係合部134が形成される。   The other end (end on the side formed in a cylindrical shape) of the casing 131 of the support member 13 of the detector 12 is provided with a tilting contact portion 133 protruding in a shaft shape and a rotation contact protruding in the same shaft shape. A contact portion 135 is formed. The tilting contact portion 133 has a center line (axis line) that substantially coincides with the center line (axis line) of the housing 131 of the support member 13 of the detector 12 and has a substantially circular cross section. The support part 132 is formed on the center line (axis line) of the casing 131. The tip of the tilt contact portion 133 is formed to be engageable with a tilt cam (groove cam) 161 described later. For example, as shown in FIG. 1, a substantially spherical engaging portion 134 is formed at the tip of the tilting contact portion 133.

回動当接部135は、その中心線(軸線)が検出器12の支持部材13の筐体131の中心線(軸線)と略平行であり、検出器12の支持部材13の筐体131の中心線(軸線)から離れた位置に中心線(軸線)を有する。すなわち、回動当接部135は、傾倒当接部133から離れた位置に、傾倒当接部133に略平行に形成される。回動当接部135の断面形状は、特に限定されるものではないが、たとえば図1に示すように、断面略円形に形成される。また、回動当接部135の先端は、後述する回動カム(第一の回動カム165および第二の回動カム166)に係合(当接)可能に形成される。たとえば、図1に示すように、回動当接部の先端には、略球形状の係合部136が形成される。   The rotation contact portion 135 has a center line (axis) that is substantially parallel to a center line (axis) of the casing 131 of the support member 13 of the detector 12, and the rotation contact portion 135 of the casing 131 of the support member 13 of the detector 12. A center line (axis) is provided at a position away from the center line (axis). That is, the rotation contact portion 135 is formed substantially parallel to the tilt contact portion 133 at a position away from the tilt contact portion 133. Although the cross-sectional shape of the rotation contact part 135 is not particularly limited, for example, as shown in FIG. Further, the tip of the rotation contact portion 135 is formed so as to be engageable (contactable) with a rotation cam (first rotation cam 165 and second rotation cam 166) described later. For example, as shown in FIG. 1, a substantially spherical engaging portion 136 is formed at the tip of the rotating contact portion.

この検出器12の支持部材13は、後述するケーシング14の内部に配設することができる。そして、ケーシング14の内部に配設された状態で、中心線(軸線)を中心に回転することができる。   The support member 13 of the detector 12 can be disposed inside a casing 14 described later. And in the state arrange | positioned inside the casing 14, it can rotate centering on a centerline (axis line).

駆動部材としてのカム部材16aは、回転動力源11からの回転動力によって回転し、検出器12の支持部材13を回転および傾倒(揺動)させる部材である。このカム部材16aは、略円盤形状の部材である。図2は、カム部材16aの構成を模式的に示した図であり、図2(a)は平面図、図2(b)は外観斜視図である。このカム部材16aの片側表面には(すなわち、同一平面上には)、傾倒部としての傾倒カム(すなわち溝カム)161と、回動部としての回動カム(第一の回動カム165および第二の回動カム166)とが形成される。   The cam member 16a as a drive member is a member that rotates by the rotational power from the rotational power source 11 and rotates and tilts (oscillates) the support member 13 of the detector 12. The cam member 16a is a substantially disk-shaped member. 2A and 2B are diagrams schematically showing the configuration of the cam member 16a. FIG. 2A is a plan view and FIG. 2B is an external perspective view. On one surface of the cam member 16a (that is, on the same plane), a tilting cam (that is, a groove cam) 161 as a tilting portion and a rotating cam (a first rotating cam 165 and a rotating portion) are provided. A second pivoting cam 166).

図2(a)に示すように、傾倒カム(溝カム)161は、第一の曲率を有する部分162と、第二の曲率を有する部分163と、変位部分164とを有する。第一の曲率を有する部分162と、第二の曲率を有する部分163とは、それぞれ略円弧形状に延伸する溝が形成される部分である。これらの第一の曲率を有する部分162と第二の曲率を有する部分163の曲率の中心は同じ位置にあり、かつ、これらの曲率の中心は、カム部材16aの回転中心(回転動力源11による回転の中心)に一致する。   As shown in FIG. 2A, the tilt cam (groove cam) 161 includes a portion 162 having a first curvature, a portion 163 having a second curvature, and a displacement portion 164. The portion 162 having the first curvature and the portion 163 having the second curvature are portions where grooves extending in a substantially arc shape are formed. The center of curvature of the portion 162 having the first curvature and the portion 163 having the second curvature are at the same position, and the center of these curvatures is the rotation center of the cam member 16a (depending on the rotational power source 11). Coincides with the center of rotation).

第一の曲率を有する部分162と第二の曲率を有する部分163とは、このカム部材の回転中心(回転動力源11による回転の中心)からの距離が相違する。すなわち、曲率の中心は同じであるが、第一の曲率を有する部分162の曲率半径と、第二の曲率を有する部分の曲率半径163とは、互いに相違する(換言すると、第一の曲率を有する部分162と第二の曲率を有する部分163は、同心円状に形成される)。本発明の第一実施形態においては、第一の曲率を有する部分162は、第二の曲率を有する部分163より、このカム部材16aの回転中心からの距離が大きい構成を有する。すなわち、第一の曲率を有する部分162の曲率半径が、第二の曲率を有する部分163の曲率半径より大きい構成を有する。   The portion 162 having the first curvature and the portion 163 having the second curvature are different in distance from the rotation center of the cam member (the center of rotation by the rotational power source 11). That is, the center of curvature is the same, but the radius of curvature of the portion 162 having the first curvature and the radius of curvature 163 of the portion having the second curvature are different from each other (in other words, the first curvature is The portion 162 having the second curvature and the portion 163 having the second curvature are formed concentrically. In the first embodiment of the present invention, the portion 162 having the first curvature has a configuration in which the distance from the rotation center of the cam member 16a is larger than the portion 163 having the second curvature. That is, the radius of curvature of the portion 162 having the first curvature is larger than the radius of curvature of the portion 163 having the second curvature.

変位部分164は、第一の曲率を有する部分162と、第二の曲率を有する部分163とを接続する部分である。この変位部分164の形状は特に限定されるものではない。たとえば図2(a)、(b)に示すように直線であっても良く、また所定の形状の曲線であっても良い。要は、第一の曲率を有する部分162と第二の曲率を有する部分163とを接続するものであればよい。   The displacement portion 164 is a portion that connects the portion 162 having the first curvature and the portion 163 having the second curvature. The shape of the displacement portion 164 is not particularly limited. For example, it may be a straight line as shown in FIGS. 2A and 2B, or may be a curve having a predetermined shape. In short, what is necessary is just to connect the part 162 which has 1st curvature, and the part 163 which has 2nd curvature.

回動カム(第一の回動カム165および第二の回動カム166)は、板状の部分である。具体的には、図2(a)、(b)に示すように、回動カム(第一の回動カム165および第二の回動カム166)は、傾倒カム(溝カム)161の外側に形成される。すなわち、傾倒カム(溝カム)が略C字状に形成される構成において、回動カム(第一の回動カム165および第二の回動カム166)は、傾倒カム(溝カム)161に囲まれる領域の外側に形成される。また、図2(a)(b)に示すように、カム部材16aの半径方向に延伸する構成を有する。   The rotating cams (the first rotating cam 165 and the second rotating cam 166) are plate-shaped portions. Specifically, as shown in FIGS. 2A and 2B, the rotating cams (the first rotating cam 165 and the second rotating cam 166) are outside the tilt cam (groove cam) 161. Formed. That is, in the configuration in which the tilt cam (groove cam) is formed in a substantially C shape, the rotating cam (first rotating cam 165 and second rotating cam 166) is connected to the tilt cam (groove cam) 161. It is formed outside the enclosed area. Moreover, as shown to Fig.2 (a) (b), it has the structure extended | stretched to the radial direction of the cam member 16a.

図3は、ケーシング14の構成を模式的に示した外観斜視図である。このケーシング14は、内部に検出器12の支持部材13を収納することができる。ケーシング14は、内部が略中空の略円筒形状に形成される部材であり、その内部に、検出器12の支持部材13を遊挿することができる。   FIG. 3 is an external perspective view schematically showing the configuration of the casing 14. The casing 14 can accommodate the support member 13 of the detector 12 therein. The casing 14 is a member formed in a substantially cylindrical shape having a substantially hollow inside, and the support member 13 of the detector 12 can be loosely inserted therein.

ケーシング14の内部には、ガイド部141が形成される。ガイド部141は、ケーシング14の筐体の内周面から略中心に向かって突出する平板状の部分である。このガイド部141の面方向は、ケーシング14を円筒に見たてた場合における円筒の中心線(軸線)に対して直角な方向に平行な方向である。このガイド部141は、ケーシング14の筐体の半径方向に沿って、細長いスリット142が形成される。本発明の第一の実施形態においては、このスリット142が略U字形状の切り欠き状に形成される構成を有するが、本発明はこのような構成に限定されるものではなく、たとえば、ケーシング14の筐体の半径方向に沿って長い長孔であっても良い。   A guide part 141 is formed inside the casing 14. The guide part 141 is a flat part protruding from the inner peripheral surface of the casing of the casing 14 toward the center. The surface direction of the guide portion 141 is a direction parallel to a direction perpendicular to the center line (axis) of the cylinder when the casing 14 is viewed as a cylinder. The guide portion 141 has an elongated slit 142 formed along the radial direction of the casing of the casing 14. In the first embodiment of the present invention, the slit 142 has a configuration that is formed in a substantially U-shaped notch, but the present invention is not limited to such a configuration. The long hole may be long along the radial direction of the 14 housings.

図1に戻って説明する。蓋体15は、ケーシング14の一端の蓋となる部材である。この蓋体15は、略円形の底の浅いトレイ状の形状を有する。そして、トレイの底面に相当する面には、回転動力源11の回転出力軸111を遊挿可能な貫通孔151が形成される。   Returning to FIG. The lid 15 is a member that serves as a lid at one end of the casing 14. The lid 15 has a shallow tray shape with a substantially circular bottom. A through hole 151 into which the rotation output shaft 111 of the rotational power source 11 can be loosely inserted is formed in a surface corresponding to the bottom surface of the tray.

回転規制部材20は、検出器12を支持する支持部材13が、意図しない回転をしないように、支持部材13の回転を規制するフリクション機構である。ここでいう意図しない回転とは、回転動力源11から伝達される回転動力以外による回転をいうものとする。たとえば、回転動力源11以外の外力による回転や、検出器12の支持部材13の慣性による回転などが挙げられる。   The rotation restricting member 20 is a friction mechanism that restricts the rotation of the support member 13 so that the support member 13 that supports the detector 12 does not rotate unintentionally. The unintended rotation mentioned here refers to rotation other than the rotational power transmitted from the rotational power source 11. For example, rotation by an external force other than the rotational power source 11 or rotation by the inertia of the support member 13 of the detector 12 can be mentioned.

このフリクション機構としての回転規制部材20は、中空の略円筒形状に形成される円筒部材とコイルバネ17とからなり、検出器12の支持部材13の傾倒当接部133に係合させるようになっている。詳しくは、この回転規制部材20の円筒部材に形成される貫通孔に、検出器12の支持部材13の傾倒当接部133を挿入させ、周方向に二箇所の切り欠き203が形成された締め付け部201にコイルバネ17を係合させるようになっている。したがって、締め付け部201はコイルバネ17によって撓まされるので、回転規制部材20と検出器12の支持部材13(の傾倒当接部133)とが相対的に回転させると両者の間に所定のフリクションを付与させることができる。円筒部材には、締め付け部201(具体的には、回転防止手段としての締め付けコイルバネ17が装着される部分)のほかに、ケーシング14のガイド部141に形成されるスリット142に係合(挿通)する係合部202と鍔部204を有している。なお、係合部202がスリット142に係合することにより、回転規制部材21の回転が阻止されるようになっている。   The rotation restricting member 20 as the friction mechanism includes a hollow cylindrical member formed in a substantially cylindrical shape and a coil spring 17, and is engaged with the tilting contact portion 133 of the support member 13 of the detector 12. Yes. Specifically, the tilt contact portion 133 of the support member 13 of the detector 12 is inserted into the through hole formed in the cylindrical member of the rotation restricting member 20, and the two notches 203 are formed in the circumferential direction. The coil spring 17 is engaged with the portion 201. Accordingly, since the tightening portion 201 is bent by the coil spring 17, when the rotation restricting member 20 and the support member 13 (the inclined contact portion 133) of the detector 12 are relatively rotated, a predetermined friction is generated between them. Can be granted. The cylindrical member engages (inserts) into the slit 142 formed in the guide portion 141 of the casing 14 in addition to the tightening portion 201 (specifically, the portion where the tightening coil spring 17 is mounted as a rotation preventing means). The engaging portion 202 and the flange portion 204 are provided. The engagement portion 202 is engaged with the slit 142 so that the rotation restricting member 21 is prevented from rotating.

フリクション機構について詳述する。回転規制部材20の円筒部材に形成された締め付け部材201は、上述の通り、その軸線方向に切り欠き203が形成されており、その半径方向にサイズが縮小可能に構成される。このような構成であれば、この締め付け部201の外周に、回転防止手段としての締め付けコイルバネ17が装着されると、切り欠き203によって締め付け部201の半径方向寸法が縮小し、回転規制部材20に挿入される検出器12の支持部材13の傾倒当接部133を締め付けることができる。また、フリクション機構として、図4に示すように、円筒部材の係合部202が係合することにより回転規制部材20の回転が阻止されるスリットが形成されたガイド部14がケーシング14の内壁部に形成されている。フリクション機構によって、検出器12の支持部材13が回転規制部材20に対して相対的回転可能となり、さらに、締め付け部201による締め付け力が、支持部材13の回転の負荷となる。したがって、支持部材13の意図しない回転(回転規制部材20に対する回転)を、防止することができる。   The friction mechanism will be described in detail. As described above, the fastening member 201 formed on the cylindrical member of the rotation restricting member 20 has the notch 203 formed in the axial direction thereof, and is configured so that the size can be reduced in the radial direction. With such a configuration, when the tightening coil spring 17 as the rotation preventing means is attached to the outer periphery of the tightening portion 201, the radial dimension of the tightening portion 201 is reduced by the notch 203, and the rotation regulating member 20. The tilting contact portion 133 of the support member 13 of the detector 12 to be inserted can be tightened. As a friction mechanism, as shown in FIG. 4, the guide portion 14 formed with a slit that prevents the rotation restricting member 20 from rotating by engaging the engaging portion 202 of the cylindrical member is an inner wall portion of the casing 14. Is formed. By the friction mechanism, the support member 13 of the detector 12 can be rotated relative to the rotation restricting member 20, and the tightening force by the tightening portion 201 becomes a rotation load of the support member 13. Therefore, unintended rotation of the support member 13 (rotation with respect to the rotation restricting member 20) can be prevented.

回転規制部材20の係合部202は、その外周の形状が断面略小判型に形成される。すなわち、回転規制部材20の係合部202の外周には、互いに平行な二本の直線の辺が形成される。そして、これらの互いに平行な二本の直線の辺が、ケーシング14のガイド部141に形成されるスリット142に係合できる。   The engaging portion 202 of the rotation restricting member 20 has an outer peripheral shape that is substantially oval in cross section. That is, two straight sides parallel to each other are formed on the outer periphery of the engaging portion 202 of the rotation restricting member 20. These two straight sides parallel to each other can engage with the slit 142 formed in the guide portion 141 of the casing 14.

図4は、傾倒当接部133に回転規制部材20が係合されている状態を示した斜視図である。図4に示すように、傾倒当接部133の係合部134近傍は、回転規制部材20の係合部202(略小判型に形成される部分)を介して、ケーシング14の内部に形成されるガイド部141のスリット142(略U字形状の切り欠き)に係合する。このため、傾倒当接部133は、ガイド部141のスリット142の形成方向(径方向)には往復動(揺動)できるが、それ以外の方向には変位できなくなる。また、傾倒当接部133の先端に形成される係合部134は、傾倒カム(溝カム)161に係合する。したがって、支承部支持部材21の支持部としての係合凹部211に対する傾倒角度が規制される。このように、検出器12の支持部材13の傾倒当接部133は、ケーシング14の内部に形成されるガイド部141のスリット142およびカム部材16aの傾倒カム161によって姿勢が規制されることになる。したがって、傾倒当接部133の往復動(ケーシング14の内部に形成されるガイド部141のスリット142に沿った変位)は、傾倒カム(溝カム)161により制御されることになる。   FIG. 4 is a perspective view showing a state in which the rotation restricting member 20 is engaged with the tilting contact portion 133. As shown in FIG. 4, the vicinity of the engaging portion 134 of the tilting contact portion 133 is formed inside the casing 14 via the engaging portion 202 (portion formed in a substantially oval shape) of the rotation restricting member 20. Engaging with the slit 142 (substantially U-shaped notch) of the guide portion 141. For this reason, the tilting contact portion 133 can reciprocate (oscillate) in the direction (radial direction) in which the slit 142 of the guide portion 141 is formed, but cannot be displaced in other directions. Further, the engaging portion 134 formed at the tip of the tilt contact portion 133 engages with the tilt cam (groove cam) 161. Therefore, the tilt angle with respect to the engagement recess 211 as the support portion of the support portion support member 21 is restricted. As described above, the posture of the tilting contact portion 133 of the support member 13 of the detector 12 is regulated by the slit 142 of the guide portion 141 formed inside the casing 14 and the tilting cam 161 of the cam member 16a. . Therefore, the reciprocating motion of the tilt contact portion 133 (displacement along the slit 142 of the guide portion 141 formed inside the casing 14) is controlled by the tilt cam (groove cam) 161.

支承部支持部材21は、検出器12の支持部材13の支承部132(小径の略半球状に形成される部分)を揺動可能かつ回転可能に支持する部材である。この支承部支持部材21には、検出器12の支持部材13の支承部132と係合可能な支持部としての係合凹部211が形成される。そして、検出器12の支持部材13の支承部132と支承部支持部材21の係合凹部211とが係合した状態で、支承部支持部材21がケーシング14に装着され固定され、ケース体を構成する。このように、検出器12の支持部材13の支承部132と支承部支持部材21の係合凹部211とが係合することにより、検出器12の支持部材13は、支承部支持部材21に対して(すなわちケーシング14に対して)、支承部132と係合凹部211の係合箇所を中心として、揺動可能および回転可能となる。   The support part support member 21 is a member that supports the support part 132 of the support member 13 of the detector 12 (a portion formed in a small hemispherical shape having a small diameter) in a swingable and rotatable manner. The support portion support member 21 is formed with an engagement recess 211 as a support portion that can be engaged with the support portion 132 of the support member 13 of the detector 12. Then, in a state where the support portion 132 of the support member 13 of the detector 12 and the engagement recess 211 of the support portion support member 21 are engaged, the support portion support member 21 is mounted and fixed to the casing 14 to constitute a case body. To do. As described above, the support portion 13 of the support member 13 of the detector 12 and the engaging recess 211 of the support portion support member 21 are engaged with each other, so that the support member 13 of the detector 12 is in contact with the support portion support member 21. (Ie, with respect to the casing 14), it can swing and rotate around the engaging portion of the support portion 132 and the engaging recess 211.

このような部材を備える測定装置1a(本発明の第一の実施形態にかかる測定装置1a)の組み付け構造は、次のとおりである。   The assembly structure of the measuring apparatus 1a including such a member (the measuring apparatus 1a according to the first embodiment of the present invention) is as follows.

回転動力源としてのモータ11が、ケーシング14の蓋体15の外側に装着される。この際に、モータ11の回転出力軸111が、この蓋体15に形成される貫通孔151に遊挿され、蓋体15の内部に突出する。そして、蓋体15の内部に突出する回転出力軸111の先端に、カム部材16aが装着され固定される。これにより、カム部材16aは、回転動力源としてのモータ11の回転動力により回転することができる。そして、モータ11が装着された蓋体15が、ケーシング14の一端に装着されて固定される。   A motor 11 as a rotational power source is attached to the outside of the lid 15 of the casing 14. At this time, the rotation output shaft 111 of the motor 11 is loosely inserted into the through hole 151 formed in the lid body 15 and protrudes into the lid body 15. Then, the cam member 16 a is mounted and fixed to the tip of the rotation output shaft 111 protruding inside the lid 15. Thereby, the cam member 16a can rotate with the rotational power of the motor 11 as a rotational power source. Then, the lid body 15 to which the motor 11 is attached is attached and fixed to one end of the casing 14.

検出器12の支持部材13の傾倒当接部133の外周に、回転規制部材20が装着される(換言すると、検出器12の支持部材13の傾倒当接部133が、回転規制部材20の貫通孔に挿通される)。そして回転規制部材20の締め付け部201の外周に、締め付けコイルバネ17が装着される。さらに、係合部202の外周には、付勢部材としてのコイルバネ19およびワッシャ18が配設される。なお、図4に示すようにワッシャ18は、ガイド部141に当接しており、コイルバネ19は、ワッシャ18と鍔部204との間に配設される。   The rotation restricting member 20 is mounted on the outer periphery of the tilt contact portion 133 of the support member 13 of the detector 12 (in other words, the tilt contact portion 133 of the support member 13 of the detector 12 penetrates the rotation restricting member 20. Through the hole). The tightening coil spring 17 is attached to the outer periphery of the tightening portion 201 of the rotation restricting member 20. Further, a coil spring 19 and a washer 18 as an urging member are disposed on the outer periphery of the engaging portion 202. As shown in FIG. 4, the washer 18 is in contact with the guide portion 141, and the coil spring 19 is disposed between the washer 18 and the flange portion 204.

そして、検出器12の支持部材13が、ケーシング14の他端(蓋体15が装着される側とは反対側の端部)から、ケーシング14の内部に挿入される。この際、傾倒当接部133の先端が、ケーシング14の内部に形成されるガイド部141のスリット142(略U字形状の切り欠きの内側)を通り、傾倒当接部133の先端の係合部134が、カム部材16aの傾倒カム(溝カム)161に係合するようにする。このとき係合部202がスリット142に係合される(図4参照)。   The support member 13 of the detector 12 is inserted into the casing 14 from the other end of the casing 14 (the end opposite to the side on which the lid 15 is mounted). At this time, the tip of the tilting contact portion 133 passes through the slit 142 (inside the substantially U-shaped notch) of the guide portion 141 formed inside the casing 14, and the tip of the tilting contact portion 133 is engaged. The portion 134 is engaged with the tilt cam (groove cam) 161 of the cam member 16a. At this time, the engaging portion 202 is engaged with the slit 142 (see FIG. 4).

第一の回動カム165および第二の回動カム166は、カム部材16aが回転することにより、検出器12の支持部材13の回動当接部135の先端の係合部136に当接可能となる。そして、第一の回動カム165および第二の回動カム166が回転することによって、検出器12の支持部材13の回動当接部135の先端の係合部136を押圧し、検出器12の支持部材13を回転させる。   The first rotation cam 165 and the second rotation cam 166 contact the engagement portion 136 at the tip of the rotation contact portion 135 of the support member 13 of the detector 12 as the cam member 16a rotates. It becomes possible. Then, when the first rotating cam 165 and the second rotating cam 166 rotate, the engaging portion 136 at the tip of the rotating contact portion 135 of the support member 13 of the detector 12 is pressed, and the detector The twelve support members 13 are rotated.

このため、回転規制部材20の締め付け部202は、検出器12の支持部材13が回転規制部材20に対して回転する際に(すなわち、ケーシング14に対して回転する際に)、検出器12の支持部材13の傾倒当接部133に摩擦力を与えることになり、検出器12の支持部材13の回転の負荷となる。このように、検出器12の支持部材13の(ケーシング14に対する)回転は、この摩擦力によって規制されることになる。なお、この摩擦力は、検出器12の支持部材13が回転動力源11からの回転動力以外の外力や慣性などによって回転せず、回転動力源11から回転動力が伝達された場合には回転できる程度の強さ力(負荷)である。すなわち、締め付けコイルバネ17による傾倒当接部133の締め付けは、検出器12の支持部材13の意図しない回転(回転動力源11以外からの外力や慣性による回転など)を防止するためのものであり、回転そのものができなくなるようにするものではない。   For this reason, the tightening portion 202 of the rotation restricting member 20 causes the detector 12 to move when the support member 13 of the detector 12 rotates relative to the rotation restricting member 20 (that is, when the support member 13 rotates relative to the casing 14). A frictional force is applied to the tilting contact portion 133 of the support member 13, which becomes a rotation load of the support member 13 of the detector 12. Thus, the rotation of the support member 13 of the detector 12 (relative to the casing 14) is restricted by this frictional force. The frictional force can be rotated when the rotational power is transmitted from the rotational power source 11 without the support member 13 of the detector 12 being rotated by an external force or inertia other than the rotational power from the rotational power source 11. It is a strength force (load) of a degree. That is, tightening of the tilting contact portion 133 by the tightening coil spring 17 is intended to prevent unintentional rotation of the support member 13 of the detector 12 (external force other than the rotational power source 11 or rotation due to inertia). It does not prevent rotation itself.

図1に戻って説明する。ケーシング14の内部に検出器12の支持部材13が配設された状態で、ケーシング14の他端(蓋体15が装着される側とは反対側の端部)に、支承部支持部材21が装着される。この際に、支承部支持部材21に形成される係合凹部211に、検出器12の支持部材13の支承部132が係合するようにする。これにより、検出器12の支持部材13は、その支承部132が支承部支持部材21により支持される。前記のように、支承部支持部材21の係合凹部は、検出器12の支持部材13の支承部132を、回転可能かつ揺動可能に支持する。   Returning to FIG. In a state where the support member 13 of the detector 12 is disposed inside the casing 14, the support portion support member 21 is provided at the other end of the casing 14 (the end opposite to the side on which the lid 15 is mounted). Installed. At this time, the support portion 132 of the support member 13 of the detector 12 is engaged with the engagement recess 211 formed in the support portion support member 21. As a result, the support member 13 of the detector 12 is supported by the support portion support member 21 at the support portion 132. As described above, the engagement concave portion of the support portion support member 21 supports the support portion 132 of the support member 13 of the detector 12 so as to be rotatable and swingable.

次に、本発明の第一の実施形態にかかる測定装置1aの動作について説明する。本発明の第一の実施形態にかかる測定装置1aは、検出器12の支持部材13が、その支承部132を中心として、ケーシング14の内部に形成されるガイド部141のスリット142の形成方向(径方向)に往復するように揺動できる。また、検出器12の支持部材13は、傾倒当接部133の中心軸を回転中心として回転運動を行うことができる。このように、検出器12の支持部材13は、その軸線方向に対して略直角の方向に揺動する動作と、軸線中心に回転する動作とが組み合わされた動作を行うことができる。このような動作は、カム部材16aによって制御される。   Next, operation | movement of the measuring apparatus 1a concerning 1st embodiment of this invention is demonstrated. In the measuring apparatus 1a according to the first embodiment of the present invention, the support member 13 of the detector 12 is formed in the direction in which the slit 142 of the guide portion 141 formed in the casing 14 is formed around the support portion 132 ( It can swing so as to reciprocate in the radial direction. Further, the support member 13 of the detector 12 can perform a rotational motion with the central axis of the tilting contact portion 133 as the rotation center. As described above, the support member 13 of the detector 12 can perform an operation in which the operation of swinging in a direction substantially perpendicular to the axial direction and the operation of rotating about the axis are combined. Such an operation is controlled by the cam member 16a.

図5から図7は、本発明の第一の実施形態にかかる測定装置1aの動作を模式的に示した平面図であり、カム部材16aに形成される傾倒カム(溝カム)161および第一の回動カム165および第二の回動カム166と、ケーシング14の内部に形成されるガイド部141と、検出器12の支持部材13に形成される傾倒当接部133および回動当接部135との位置関係を模式的に示した平面図である。   5 to 7 are plan views schematically showing the operation of the measuring apparatus 1a according to the first embodiment of the present invention. The tilt cam (groove cam) 161 and the first cam formed on the cam member 16a are shown in FIGS. The rotating cam 165 and the second rotating cam 166, the guide portion 141 formed inside the casing 14, the tilting contact portion 133 and the rotation contact portion formed on the support member 13 of the detector 12. 5 is a plan view schematically showing a positional relationship with 135. FIG.

まず図5(a)に示すように、回転動力源11から伝達される回転動力によって、カム部材16aが矢印a向きに回転する。図5(a)に示す状態においては、傾倒当接部133の先端の係合部134(図1参照)は、傾倒カム(溝カム)161の第一の曲率を有する部分162に係合している。この状態においては、カム部材16aの回転中心と傾倒カム(溝カム)161の第一の曲率を有する部分162の曲率の中心は一致しているから、カム部材16aが矢印aの向きに回転したとしても、カム部材16aの回転中心から傾倒カム(溝カム)161の傾倒当接部133の係合部134と係合している位置までの距離は不変である。したがって、傾倒当接部133の先端の係合部134は変位せず、検出器12の支持部材13は揺動しない。また、回動当接部135と第一の回動カム165、第二の回動カム166は当接していないから、検出器12の支持部材13には、回転させるような力も加わらない。   First, as shown in FIG. 5A, the cam member 16 a rotates in the direction of arrow a by the rotational power transmitted from the rotational power source 11. In the state shown in FIG. 5A, the engaging portion 134 (see FIG. 1) at the tip of the tilting contact portion 133 is engaged with the portion 162 having the first curvature of the tilting cam (groove cam) 161. ing. In this state, the center of curvature of the portion 162 having the first curvature of the tilting cam (groove cam) 161 coincides with the center of rotation of the cam member 16a, so that the cam member 16a is rotated in the direction of the arrow a. Even so, the distance from the rotation center of the cam member 16a to the position where it engages with the engaging portion 134 of the tilting contact portion 133 of the tilting cam (groove cam) 161 is unchanged. Therefore, the engaging portion 134 at the tip of the tilting contact portion 133 is not displaced, and the support member 13 of the detector 12 does not swing. Further, since the rotation contact portion 135 is not in contact with the first rotation cam 165 and the second rotation cam 166, no force is applied to the support member 13 of the detector 12.

図5(b)に示すように、カム部材16aが回転すると、傾倒カム(溝カム)161と傾倒当接部133の先端の係合部134との位置関係が変化し、傾倒当接部133の先端の係合部134は、傾倒カム(溝カム)161の変位部分164に到達する。傾倒カム(溝カム)161の変位部分164は、第一の曲率を有する部分162と第二の曲率を有する部分163とを接続する部分であり、カム部材16aの回転中心から溝カム161と傾倒当接部133の先端の係合部134が係合する位置までの距離は、変位部分164における位置に応じて変化する(すなわち、カム部材16aの回転角度に応じて変化する)。   As shown in FIG. 5B, when the cam member 16 a rotates, the positional relationship between the tilt cam (groove cam) 161 and the engagement portion 134 at the tip of the tilt contact portion 133 changes, and the tilt contact portion 133. The engagement portion 134 at the tip of the tip reaches the displacement portion 164 of the tilt cam (groove cam) 161. The displacement portion 164 of the tilt cam (groove cam) 161 is a portion connecting the portion 162 having the first curvature and the portion 163 having the second curvature, and tilts with the groove cam 161 from the rotation center of the cam member 16a. The distance to the position where the engagement portion 134 at the tip of the contact portion 133 engages changes according to the position of the displacement portion 164 (that is, changes according to the rotation angle of the cam member 16a).

このため、傾倒当接部133の先端の係合部134が傾倒カム(溝カム)161の変位部分164に係合している状態で、カム部材16aが矢印aの向きに回転すると、図5(c)、図5(d)に示すように、傾倒当接部133の先端の係合部134が、傾倒カム(溝カム)161の位置に応じて(カム部材16aの回転角度に応じて)、矢印cの向きに変位する。したがって、全体として検出器12の支持部材13は、矢印cの向きに(すなわち回転出力軸に直交する向きであってケーシング14の径方向に)揺動する。   For this reason, when the cam member 16a rotates in the direction of the arrow a in a state where the engagement portion 134 at the tip of the tilt contact portion 133 is engaged with the displacement portion 164 of the tilt cam (groove cam) 161, FIG. (C) As shown in FIG. 5 (d), the engaging portion 134 at the tip of the tilt contact portion 133 is in accordance with the position of the tilt cam (groove cam) 161 (in accordance with the rotation angle of the cam member 16a). ), And is displaced in the direction of arrow c. Accordingly, as a whole, the support member 13 of the detector 12 swings in the direction of the arrow c (that is, in the direction orthogonal to the rotation output shaft and in the radial direction of the casing 14).

図5(d)に示すように、カム部材16aが矢印aの向きに回転すると、傾倒当接部133の先端の係合部134が、傾倒カム(溝カム)161の変位部分164と第二の曲率を有する部分163の境界に到達する。そうすると、カム部材16aに形成される第一の回動カム165が、検出器12の支持部材13の回動当接部135の先端の係合部136に当接し、回動当接部135を押圧する。   As shown in FIG. 5D, when the cam member 16a rotates in the direction of the arrow a, the engaging portion 134 at the tip of the tilting contact portion 133 is displaced from the displacement portion 164 of the tilting cam (groove cam) 161 and the second portion. The boundary of the part 163 having the curvature of is reached. Then, the first rotation cam 165 formed on the cam member 16a contacts the engagement portion 136 at the tip of the rotation contact portion 135 of the support member 13 of the detector 12, and the rotation contact portion 135 is moved. Press.

カム部材16aに形成される第一の回動カム165が、検出器12の支持部材13の回動当接部135の先端の係合部136に当接し押圧を開始すると、図6(a)に示すように、検出器12の支持部材13は、傾倒当接部133の中心線(軸線)を中心として回転を開始する。回動当接部135の先端の係合部136が第一の回動カム165に押圧されている間は、傾倒当接部133の先端の係合部134は、傾倒カム(溝カム)161の第二の曲率を有する部分163に係合している状態にある。傾倒カム(溝カム)161の第二の曲率を有する部分163の曲率の中心と、カム部材16aの回転中心とは一致しているから、カム部材16aが回転しても、傾倒当接部133の先端の係合部134は変位しない。したがって、この状態においては、検出器12の支持部材13は、傾倒当接部133の中心線(軸線)を中心とする回転運動のみを行うことになり、揺動はしない。そして、図6(b)に示すように、回動当接部135の先端の係合部136が傾倒カム(溝カム)161の端部に到達するまで、カム部材16aを矢印aの向きに回転させ、第一の回動カム165によって回動当接部135の先端の係合部136を押圧し、検出器12の支持部材13を回転させる。   When the first rotation cam 165 formed on the cam member 16a comes into contact with the engagement portion 136 at the tip of the rotation contact portion 135 of the support member 13 of the detector 12 and starts pressing, FIG. As shown, the support member 13 of the detector 12 starts to rotate around the center line (axis line) of the tilting contact portion 133. While the engagement portion 136 at the tip of the rotation contact portion 135 is pressed by the first rotation cam 165, the engagement portion 134 at the tip of the tilt contact portion 133 is tilted cam (groove cam) 161. Is engaged with the portion 163 having the second curvature. Since the center of curvature of the portion 163 having the second curvature of the tilt cam (groove cam) 161 and the rotation center of the cam member 16a coincide with each other, even if the cam member 16a rotates, the tilt contact portion 133 does not rotate. The engaging portion 134 at the tip of the tip is not displaced. Therefore, in this state, the support member 13 of the detector 12 performs only a rotational motion around the center line (axis line) of the tilting contact portion 133 and does not swing. Then, as shown in FIG. 6B, the cam member 16a is moved in the direction of the arrow a until the engaging portion 136 at the tip of the rotation contact portion 135 reaches the end of the tilt cam (groove cam) 161. The engagement member 136 at the tip of the rotation contact portion 135 is pressed by the first rotation cam 165 and the support member 13 of the detector 12 is rotated.

図6(b)に示すように回動当接部135の先端の係合部136が傾倒カム(溝カム)161の端部に達した場合には、回転動力源11は逆回転を開始する。そうすると、図6(c)に示すように、カム部材16aは矢印bの向きに回転を開始する。そして、図6(c)に示すように、傾倒当接部133の先端の係合部134が、傾倒カム(溝カム)161の第二の曲率を有する部分163に係合した状態のまま、第一の回動カム165が回動当接部135の先端の係合部136から離れ遠ざかる。ここで、回動当接部135の先端の係合部136は、第一の回動カム165および第二の回動カム166のいずれにも当接しないから、検出器12の支持部材13は回転しない。また、傾倒当接部133の先端の係合部134は、傾倒カム(溝カム)161の第二の曲率を有する部分163に係合した状態にあるから、カム部材16aが回転しても、検出器12の支持部材13は揺動しない。   As shown in FIG. 6B, when the engaging portion 136 at the tip of the rotation contact portion 135 reaches the end of the tilt cam (groove cam) 161, the rotational power source 11 starts reverse rotation. . Then, as shown in FIG. 6C, the cam member 16a starts to rotate in the direction of the arrow b. And as shown in FIG.6 (c), the engaging part 134 of the front-end | tip of the inclination contact part 133 is engaged with the part 163 which has the 2nd curvature of the inclination cam (groove cam) 161, The first rotation cam 165 moves away from the engagement portion 136 at the tip of the rotation contact portion 135. Here, since the engagement portion 136 at the tip of the rotation contact portion 135 does not contact either the first rotation cam 165 or the second rotation cam 166, the support member 13 of the detector 12 is Does not rotate. Further, since the engaging portion 134 at the tip of the tilting contact portion 133 is engaged with the portion 163 having the second curvature of the tilting cam (groove cam) 161, even if the cam member 16a rotates, The support member 13 of the detector 12 does not swing.

図6(d)に示すように、カム部材16aが矢印bの向きに回転し、傾倒当接部133の先端の係合部134が、傾倒カム(溝カム)161の第二の曲率を有する部分163から変位部分164に移動すると、傾倒当接部133の先端の係合部134は、カム部材16aの回転角度に応じて、矢印dの向きに変位を開始する。したがって、全体として検出器12の支持部材13は、矢印dの向きに(すなわち回転出力軸に直交する向きであってケーシング14の径方向に)揺動を開始する。   As shown in FIG. 6D, the cam member 16 a rotates in the direction of the arrow b, and the engagement portion 134 at the tip of the tilt contact portion 133 has the second curvature of the tilt cam (groove cam) 161. When moving from the portion 163 to the displacement portion 164, the engaging portion 134 at the tip of the tilting contact portion 133 starts to be displaced in the direction of the arrow d according to the rotation angle of the cam member 16a. Accordingly, as a whole, the support member 13 of the detector 12 starts swinging in the direction of the arrow d (that is, in the direction orthogonal to the rotation output shaft and in the radial direction of the casing 14).

図7(a)に示すように、カム部材16aの矢印bの向きへの回転が進行して、傾倒当接部133の先端の係合部134が、傾倒カム(溝カム)161の変位部分164から第一の曲率を有する部分162に到達すると、傾倒当接部133の先端の係合部134の変位(矢印dの向きへの変位、すなわち検出器12の支持部材13の矢印dの向きへの揺動)は終了する。そして図7(a)に示すように、第二の回動カム166が回動当接部135の先端の係合部136に当接して押圧を開始する。したがって、検出器12の支持部材13は、矢印bの向きへの回転を開始する。図7(a)に示すように、傾倒当接部133の先端の係合部134は、傾倒カム(溝カム)161の第一の曲率を有する部分162に係合しているから、カム部材16aが回転しても、傾倒当接部133の先端の係合部134は変位しない。したがって、検出器12の支持部材13は、矢印bの向きの回転運動のみを行うことになる。   As shown in FIG. 7A, rotation of the cam member 16a in the direction of arrow b proceeds, and the engagement portion 134 at the tip of the tilt contact portion 133 is displaced by the tilt cam (groove cam) 161. When the part 162 having the first curvature is reached from 164, the displacement of the engaging part 134 at the tip of the tilting contact part 133 (displacement in the direction of the arrow d, that is, the direction of the arrow d of the support member 13 of the detector 12) Swinging to the end). Then, as shown in FIG. 7A, the second rotating cam 166 comes into contact with the engaging portion 136 at the tip of the rotating contact portion 135 and starts pressing. Therefore, the support member 13 of the detector 12 starts to rotate in the direction of the arrow b. As shown in FIG. 7A, the engaging portion 134 at the tip of the tilting contact portion 133 is engaged with the portion 162 having the first curvature of the tilting cam (groove cam) 161, so that the cam member Even if 16a rotates, the engaging portion 134 at the tip of the tilting contact portion 133 is not displaced. Therefore, the support member 13 of the detector 12 performs only the rotational movement in the direction of the arrow b.

そして、図7(b)に示すように、回動当接部135の先端の係合部136が所定の位置に到達するまでの間、第二の回動カム166が回動当接部135の先端の係合部136を押圧して変位させ、検出器12の支持部材13を矢印bの向きに回転させる。その後、図5(a)に示す状態および動作に戻り、以降、このような動作を繰り返す。   Then, as shown in FIG. 7B, the second rotating cam 166 is rotated until the engaging portion 136 at the tip of the rotating contact portion 135 reaches a predetermined position. The engaging portion 136 at the tip of the detector 12 is pressed and displaced, and the support member 13 of the detector 12 is rotated in the direction of the arrow b. Thereafter, the operation returns to the state and operation shown in FIG. 5A, and such operation is repeated thereafter.

このような構成によれば、検出器12の支持部材13は、(1)回転出力軸を中心とする矢印aの向きへの回転、(2)回転出力軸と直交する向きへの揺動、(3)回転出力軸を中心とする矢印bの向きへの回転、(4)回転出力軸と直交する向きへの揺動、という動作を繰り返すことができ、検出器12は、略方形の軌跡を描いて測定を行うことができる。このように、検出器12の支持部材13を、回転させるのみならず、回転出力軸と直角の方向へ揺動させることができる。したがって、検出器12の支持部材13を回転させるのみの構成に比較して、検出器12による測定範囲を広くすることができる。   According to such a configuration, the support member 13 of the detector 12 is (1) rotating in the direction of the arrow a around the rotation output shaft, (2) swinging in the direction orthogonal to the rotation output shaft, The operation of (3) rotation in the direction of the arrow b around the rotation output shaft and (4) swinging in the direction orthogonal to the rotation output shaft can be repeated. Can be measured. Thus, the support member 13 of the detector 12 can be swung in a direction perpendicular to the rotation output shaft as well as rotating. Therefore, the measurement range by the detector 12 can be widened as compared with the configuration in which the support member 13 of the detector 12 is merely rotated.

なお、本発明の第一の実施形態においては、検出器が略方形の軌跡を描く構成を示したが、検出器の軌跡は略方形に限定されるものではない。図8は、検出器の軌跡の変形例を模式的に示した平面図である。検出器の軌跡は、図8(a)に示すようにくびれた長円形(瓢箪型)であってもよく、図8(b)に示すように、楕円であっても良い。また、図8(c)に示すように、検出器が蛇行するような軌跡を描いても良い(換言するとつづら折り状の軌跡であっても良い)。検出器の軌跡は、傾倒カム(溝カム)の形状を変更することにより、種々に変更することができる。   In addition, in 1st embodiment of this invention, although the structure which a detector draws a substantially square locus was shown, the locus of a detector is not limited to a substantially square shape. FIG. 8 is a plan view schematically showing a modified example of the locus of the detector. The locus of the detector may be a constricted oval shape (saddle shape) as shown in FIG. 8A, or may be an ellipse as shown in FIG. 8B. Further, as shown in FIG. 8C, a trajectory in which the detector meanders may be drawn (in other words, it may be a zigzag trajectory). The locus of the detector can be changed in various ways by changing the shape of the tilt cam (groove cam).

本発明の第一の実施形態においては、回転防止手段としての締め付けコイルバネ17と、付勢手段としてのコイルバネ19とが、それぞれ別部材からなる構成を示したが、付勢手段としてのコイルバネ19により支持部材13の回転を規制することが可能であれば、コイルバネ19のみで、回転防止手段および付勢手段を兼用する構成であっても良い。すなわち、単一の圧縮コイルバネが、ケーシング14の形成されるガイド部141(実際にはガイド部141に当接したワッシャ18)と支持部材13の間に架設させる構成のみであっても良い。ただし、第一実施形態のように、回転防止手段と付勢手段とをそれぞれ別のコイルバネからなる構成によれば、付勢力と締め付け力のそれぞれを、最適な値に設定しやすくなる。一方、回転防止手段と付勢手段とを単一のコイルバネ(コイルバネ19)に兼用させる構成によれば、部品点数の削減を図ることができる。   In the first embodiment of the present invention, the tightening coil spring 17 as the rotation preventing means and the coil spring 19 as the urging means are configured by separate members, but the coil spring 19 as the urging means is used. As long as it is possible to restrict the rotation of the support member 13, only the coil spring 19 may be used as the rotation preventing unit and the biasing unit. That is, only a configuration in which a single compression coil spring is installed between the support member 13 and the guide part 141 (actually the washer 18 in contact with the guide part 141) where the casing 14 is formed may be used. However, according to the configuration in which the rotation preventing means and the urging means are made of different coil springs as in the first embodiment, it is easy to set the urging force and the tightening force to optimum values. On the other hand, according to the configuration in which the rotation preventing means and the urging means are combined with a single coil spring (coil spring 19), the number of parts can be reduced.

また、前記第一の実施形態においては、回動カム(第一の回動カム165および第二の回動カム166)は、傾倒カム(溝カム)161に囲まれる領域の外側に形成される構成を示したが、内側に形成される構成であっても良い。図9は、カム部材の変形例を模式的に示した平面図である。図9に示すようにこのカム部材16bは、傾倒カム161(第一の曲率を有する部分162、第二の曲率を有する部分163、変位部分164を備える。これらの構成は、前記実施形態にかかるカム部材16aと同じ構成である。)が形成されている。また、回動カム161が形成する円弧の内側に、第一の回動カム165および第二の回動カム166が形成される。このような構成であっても、前記実施形態と同様の作用効果を奏することができる。   In the first embodiment, the rotating cams (the first rotating cam 165 and the second rotating cam 166) are formed outside the region surrounded by the tilt cam (groove cam) 161. Although the configuration is shown, it may be a configuration formed inside. FIG. 9 is a plan view schematically showing a modified example of the cam member. As shown in FIG. 9, the cam member 16b includes a tilting cam 161 (a portion 162 having a first curvature, a portion 163 having a second curvature, and a displacement portion 164. These configurations are related to the embodiment. The same structure as that of the cam member 16a) is formed. In addition, a first rotation cam 165 and a second rotation cam 166 are formed inside the arc formed by the rotation cam 161. Even if it is such a structure, there can exist an effect similar to the said embodiment.

また、検出器を支持する支持部材を、傾倒カムによって回転出力軸に直交する方向へ傾倒させることができる。したがって、検出器を支持する支持部材を回転させるだけの構成に比較して、測定範囲を広くすることができる(回転方向に直交する方向にも測定範囲を拡げることができる)。また、単一の検出器を用いる構成であっても、回転方向に直交する方向に測定範囲を拡げることができるから、複数の検出器を備える構成としなくとも、測定範囲を拡げることができる。   Further, the support member that supports the detector can be tilted in a direction orthogonal to the rotation output shaft by the tilt cam. Therefore, the measurement range can be widened compared to a configuration in which the support member that supports the detector is simply rotated (the measurement range can be expanded in a direction orthogonal to the rotation direction). Moreover, even if it is the structure using a single detector, since a measurement range can be expanded in the direction orthogonal to a rotation direction, even if it is not set as a structure provided with a some detector, a measurement range can be expanded.

次に、本発明の第二の実施形態について説明する。第二の実施形態は、傾倒部としての傾倒カムが面カムにより形成される構成を有する。図10は、本発明の第二の実施形態にかかる測定装置の構成を模式的に示した外観斜視図である。図10に示すように、本発明の第二実施形態にかかる測定装置5は、回転動力源51と、検出器52と、検出器52を支持する支持部材53と、駆動部材としてのカム部材54および回転出力軸511と、押圧部材55と、付勢手段としてのコイルバネ56とを備える。回転動力源51および検出器52は、第一の実施形態にかかる回転動力源11と検出器12と同じものが適用できる。なお、回転動力源51の回転出力軸511は、断面が略方形に形成され、回動部としての二辺5111,5112を有する。   Next, a second embodiment of the present invention will be described. The second embodiment has a configuration in which a tilt cam as a tilt portion is formed by a surface cam. FIG. 10 is an external perspective view schematically showing the configuration of the measuring apparatus according to the second embodiment of the present invention. As shown in FIG. 10, the measuring device 5 according to the second embodiment of the present invention includes a rotational power source 51, a detector 52, a support member 53 that supports the detector 52, and a cam member 54 as a drive member. And a rotation output shaft 511, a pressing member 55, and a coil spring 56 as urging means. The rotational power source 51 and the detector 52 can be the same as the rotational power source 11 and the detector 12 according to the first embodiment. Note that the rotation output shaft 511 of the rotational power source 51 has a substantially square cross section and has two sides 5111 and 5112 as rotating parts.

支持部材53は、基端部側(回転動力源11の側)が、略円柱状の形状を有し、先端部側は先細り形状(たとえば円錐形状や半球形状)に形成される。そして、本実施形態の場合、略円柱状の形状に形成される基端部側と先細り形状に形成される先端部側との境界に検出器52を搭載することができる検出器搭載部531が形成される。支持部材53の基端部には、傾倒当接部532が形成される。この傾倒当接部532は、カム部材54側に向かって突出する略棒状の部位である。また、検出器52の支持部材53の内部には、半径方向に延伸する長孔状のスリット531が形成される(A−A線断面図参照)。   The support member 53 has a substantially cylindrical shape on the base end side (rotation power source 11 side) and a tapered shape (for example, a conical shape or a hemispherical shape) on the tip end side. In the case of the present embodiment, a detector mounting portion 531 capable of mounting the detector 52 on the boundary between the base end side formed in a substantially cylindrical shape and the tip end side formed in a tapered shape is provided. It is formed. A tilting contact portion 532 is formed at the base end portion of the support member 53. The tilting contact portion 532 is a substantially rod-shaped portion that protrudes toward the cam member 54 side. In addition, an elongated slit 531 extending in the radial direction is formed inside the support member 53 of the detector 52 (see a cross-sectional view taken along the line AA).

駆動部材としてのカム部材54は略円柱状または円盤状の部材であり、その端面が傾倒部としてのカム面541となっている。このカム面541は図10に示すように段差が設けられており、回転出力軸511の方向に高さが高くなっている部分と高さが低くなっている部分とを有している。また、このカム部材54には、押圧部材55を摺動可能に支持する係合腕542が形成されており、その先端に押圧部材55を係合可能に開口した略円筒状に形成された部分を有している。そしてこの円筒状に形成された部分には、コイルバネ56が収納可能されており、コイルバネ56の一端が係合腕542の底部に固定され、コイルバネ56の他端が押圧部材55に係止されて、押圧部材55を支持部材53の方向に付勢するようになっている。   The cam member 54 as a drive member is a substantially columnar or disk-shaped member, and its end surface is a cam surface 541 as a tilted portion. As shown in FIG. 10, the cam surface 541 has a step, and has a portion whose height is increased in the direction of the rotation output shaft 511 and a portion whose height is low. Further, the cam member 54 is formed with an engaging arm 542 that slidably supports the pressing member 55, and a substantially cylindrical portion that is open at the tip thereof so that the pressing member 55 can be engaged. have. A coil spring 56 can be accommodated in the cylindrical portion. One end of the coil spring 56 is fixed to the bottom of the engagement arm 542, and the other end of the coil spring 56 is locked to the pressing member 55. The pressing member 55 is urged in the direction of the support member 53.

このような部材を有する測定装置5の組み付け構造は、次のとおりである。回転動力源51の回転出力軸511が突出する側にカム部材54が固定される。回転動力源51の回転出力軸511は、カム部材54の中心に形成される開口部を貫通して突出する。そして、突出する回転出力軸511が検出器52の支持部材53に形成されたスリット531に挿入される。また、押圧部材55が、検出器52の支持部材53およびカム部材54の係合腕542に取り付けられる。具体的には、押圧部材55の一端に形成される支持部としての係合部551と検出器52の支持部材53の支承部としての頂部533とを係合させるとともに、押圧部材55の他端をカム部材54の係合腕542に挿入する。なお、押圧部材55の他端をカム部材54の係合腕542に挿入する前に、カム部材54の係合腕542と押圧部材55の他端との間に、付勢部材としてのコイルバネ56を架設しておく。   The assembling structure of the measuring apparatus 5 having such a member is as follows. A cam member 54 is fixed to the side of the rotational power source 51 from which the rotation output shaft 511 projects. The rotation output shaft 511 of the rotational power source 51 projects through an opening formed at the center of the cam member 54. Then, the protruding rotation output shaft 511 is inserted into a slit 531 formed in the support member 53 of the detector 52. The pressing member 55 is attached to the support member 53 of the detector 52 and the engagement arm 542 of the cam member 54. Specifically, an engaging portion 551 as a support portion formed at one end of the pressing member 55 is engaged with a top portion 533 as a support portion of the supporting member 53 of the detector 52 and the other end of the pressing member 55 is engaged. Is inserted into the engaging arm 542 of the cam member 54. Before inserting the other end of the pressing member 55 into the engaging arm 542 of the cam member 54, a coil spring 56 as a biasing member is provided between the engaging arm 542 of the cam member 54 and the other end of the pressing member 55. Is built.

この付勢手段としてのコイルバネ56は、押圧部材55を矢印Bの向きに付勢する。したがって、検出器52の支持部材53は、押圧部材55によってカム部材54の側に付勢される。そして傾倒当接部532の先端が、面カムとしてカム部材54に形成されたカム面541に当接する。   The coil spring 56 as the urging means urges the pressing member 55 in the direction of arrow B. Accordingly, the support member 53 of the detector 52 is biased toward the cam member 54 by the pressing member 55. The tip of the tilting contact portion 532 comes into contact with a cam surface 541 formed on the cam member 54 as a surface cam.

このような構成を有する測定装置5の動作は次のとおりである。回転動力源51の回転出力軸511が回転すると、検出器52の支持部材53が、回転出力軸511と一体に回転する。すなわち、支持部材53に形成されたスリット531の長尺方向の二辺5311,5312に、回転出力軸511の断面が略方形に形成された回動部としての二辺5111,5112がそれぞれ当接して、回転出力軸511が回転すると、回転出力軸511とともに支持部材53が一体に回転する。   The operation of the measuring apparatus 5 having such a configuration is as follows. When the rotation output shaft 511 of the rotational power source 51 rotates, the support member 53 of the detector 52 rotates integrally with the rotation output shaft 511. That is, the two sides 5111 and 5112 as the rotating portions in which the cross section of the rotation output shaft 511 is formed in a substantially square shape abut on the two sides 5311 and 5312 in the longitudinal direction of the slit 531 formed in the support member 53, respectively. When the rotation output shaft 511 rotates, the support member 53 rotates together with the rotation output shaft 511.

そして、傾倒当接部532の先端が、カム部材54のカム面541の高さが高い位置に達すると、傾倒当接部532がカム面541により押圧される。この結果、検出器52の支持部材53は、押圧部材55の支持部551に当接する部分(すなわち頂点)を支点として傾く。すなわち、図10に示すように、支持部材53に形成されたスリット531の長尺方向の二辺5311,5312に、回転出力軸511の断面が略方形に形成された二辺5111,5112がそれぞれ当接する。このため、支持部材53は、支持部材53のスリット531の形成方向(径方向)には往復動(揺動)できるが、周方向には変位できなくなる。   Then, when the tip of the tilt contact portion 532 reaches a position where the height of the cam surface 541 of the cam member 54 is high, the tilt contact portion 532 is pressed by the cam surface 541. As a result, the support member 53 of the detector 52 is inclined with a portion (that is, the apex) that contacts the support portion 551 of the pressing member 55 as a fulcrum. That is, as shown in FIG. 10, two sides 5111 and 5112 in which the cross section of the rotation output shaft 511 is formed in a substantially square shape are formed on two sides 5311 and 5312 in the longitudinal direction of the slit 531 formed in the support member 53, respectively. Abut. For this reason, the support member 53 can reciprocate (oscillate) in the formation direction (radial direction) of the slit 531 of the support member 53, but cannot be displaced in the circumferential direction.

回転出力軸511がさらに回転して、傾倒当接部532の先端が、カム部材54の高さが高い位置から離れると、付勢部材としてのコイルバネ56の付勢力により、検出器52の支持部材53は元の姿勢に戻る。このように、面カムを用いる構成であっても、検出器52の支持部材53を回転出力軸511に直交する方向へ傾倒させることができる。   When the rotation output shaft 511 further rotates and the tip of the tilting contact portion 532 moves away from the position where the cam member 54 is high, the biasing force of the coil spring 56 serving as the biasing member causes the support member of the detector 52 to be supported. 53 returns to the original posture. Thus, even if it is the structure which uses a surface cam, the support member 53 of the detector 52 can be tilted in the direction orthogonal to the rotation output shaft 511.

(実施の形態の主な効果)
検出器12を支持する支持部材13が、傾倒カム161によって回転出力軸に直交する方向へ傾倒することができる。したがって、検出器12を支持する支持部材13を回転させるだけの構成に比較して、測定範囲を広くすることができる。また、回転方向に直交する方向に測定範囲を拡げることができるから、複数の検出器を備える構成としなくとも、測定範囲を拡げることができる。また、傾倒カム161の形状を変えることで、検出器12の軌跡を様々に変えることができ、測定範囲を拡げることができる。
(Main effects of the embodiment)
The support member 13 that supports the detector 12 can be tilted in a direction perpendicular to the rotation output shaft by the tilt cam 161. Therefore, the measurement range can be widened as compared with the configuration in which the support member 13 that supports the detector 12 is simply rotated. Further, since the measurement range can be expanded in the direction orthogonal to the rotation direction, the measurement range can be expanded without using a configuration including a plurality of detectors. Further, by changing the shape of the tilt cam 161, the locus of the detector 12 can be changed variously, and the measurement range can be expanded.

傾倒部として傾倒カム161を採用し、支持部材13の傾倒当接部133により支持部材13を傾倒させることで、支持部材13を簡略な構成により傾倒させることができる。また、回動部として回動カム165,166を採用し、支持部材13の回動当接部135により支持部材13を回動させることで、支持部材13を簡略な構成により回動させることができる。   By adopting the tilt cam 161 as the tilt portion and tilting the support member 13 by the tilt contact portion 133 of the support member 13, the support member 13 can be tilted with a simple configuration. Further, by adopting the rotating cams 165 and 166 as the rotating part and rotating the supporting member 13 by the rotating contact part 135 of the supporting member 13, the supporting member 13 can be rotated with a simple configuration. it can.

検出器12の支持部材13は、回動および傾倒が可能な支承部132を有する。また、ケーシング14のガイド部141によって、支承部132と傾倒当接部133が傾倒カム161に係合する係合部とを通る直線が、径方向にのみ移動可能に構成される。そしてガイド部141によって、支持部材13の傾倒当接部133が傾倒カム161の回動に伴って径方向に移動し、支持部材13が傾倒する。このような構成によれば、傾倒カム161の回転によって支持部材13が回転することを防止できる。   The support member 13 of the detector 12 has a support portion 132 that can be rotated and tilted. Further, the guide part 141 of the casing 14 is configured such that a straight line passing through the support part 132 and the engaging part where the tilting contact part 133 engages with the tilting cam 161 is movable only in the radial direction. Then, the tilt contact portion 133 of the support member 13 is moved in the radial direction by the rotation of the tilt cam 161 by the guide portion 141, and the support member 13 is tilted. According to such a configuration, the support member 13 can be prevented from rotating due to the rotation of the tilt cam 161.

傾倒カム161として溝カムが適用され、溝カムによって傾倒当接部133の径方向の位置が規制される。このように、溝カムによって傾倒当接部133の位置が規制される構成であれば、傾倒当接部133は溝カムの形状に追従できるから、傾倒当接部133をカムに追従させるための付勢部材などが必要にならない。   A groove cam is applied as the tilt cam 161, and the radial position of the tilt contact portion 133 is regulated by the groove cam. In this way, if the position of the tilting contact portion 133 is regulated by the groove cam, the tilting contact portion 133 can follow the shape of the groove cam, so that the tilting contact portion 133 follows the cam. There is no need for a biasing member.

回動カム(第一の回動カム165および第二の回動カム166)と傾倒カム161とが同一平面に形成されている構成であれば、測定装置の軸線方向長さの短縮を図ることができる。   If the rotation cam (the first rotation cam 165 and the second rotation cam 166) and the tilt cam 161 are formed in the same plane, the axial length of the measuring device can be shortened. Can do.

支持部材13の回動中心の内側に傾倒カム161が配設されるとともに、外側に回動カム(第一の回動カム165および第二の回動カム166)が配設される構成によれば、回動カム(第一の回動カム165および第二の回動カム166)の可動距離を長くすることができ、支持部材の回転誤差に対する許容量を大きくすることができる。   According to the configuration in which the tilt cam 161 is disposed inside the rotation center of the support member 13 and the rotation cams (the first rotation cam 165 and the second rotation cam 166) are disposed outside. For example, the movable distance of the rotation cams (the first rotation cam 165 and the second rotation cam 166) can be increased, and the allowable amount for the rotation error of the support member can be increased.

支持部材13を支承部132に付勢する付勢手段としてのコイルバネ19を有している構成によれば、支持部材13の軸線方向のがたつきを防止することができるので、支持部材13の傾倒角度の安定化を図ることができる。すなわち、傾倒カム161として溝カムが適用される構成においては、傾倒カム161と支持部材13に形成される傾倒当接部との軸方向クリアランスが、径方向の位置に応じて変化する。具体的には、径方向の内側より外側の方がクリアランスが大きくなる。クリアランスが大きくなると、支持部材13の傾倒角度が変化するおそれがある。本実施形態によれば、このような傾倒角度の変化を防止して傾倒角度を安定させることができる。   According to the configuration having the coil spring 19 as an urging means for urging the support member 13 against the support portion 132, it is possible to prevent the support member 13 from shaking in the axial direction. It is possible to stabilize the tilt angle. That is, in the configuration in which the groove cam is applied as the tilt cam 161, the axial clearance between the tilt cam 161 and the tilt contact portion formed on the support member 13 changes according to the radial position. Specifically, the clearance is larger on the outer side than on the inner side in the radial direction. When the clearance increases, the tilt angle of the support member 13 may change. According to this embodiment, such a change in the tilt angle can be prevented and the tilt angle can be stabilized.

支持部材13の回動を防止する回転防止手段としての締め付けコイルバネ17を有している構成によれば、支持部材13の回転方向のがたつきを防止して支持部材13の回転位置の安定化を図ることができる。すなわち、回動カム161を用いる構成によれば、測定装置の姿勢変化、振動、衝撃等により回動カム161と回答当接部135との間にクリアランスが生じるおそれがある。その結果、支持部材13の回転角度が変化するおそれがある。本発明の実施形態によれば、このような回転角どの変化を防止して、回転角度を安定させることができる。   According to the configuration having the tightening coil spring 17 as the rotation preventing means for preventing the rotation of the support member 13, the rotation position of the support member 13 is prevented and the rotation position of the support member 13 is stabilized. Can be achieved. That is, according to the configuration using the rotating cam 161, there is a possibility that a clearance may be generated between the rotating cam 161 and the answer contact portion 135 due to a change in posture, vibration, impact, or the like of the measuring apparatus. As a result, the rotation angle of the support member 13 may change. According to the embodiment of the present invention, such a change in the rotation angle can be prevented and the rotation angle can be stabilized.

前記付勢手段と前記回転防止手段とを別部材に形成する構成によれば、付勢手段による付勢力と回転防止手段による回転防止力を、それぞれ最適な値に設定しやすくなる。   According to the configuration in which the urging unit and the rotation preventing unit are formed as separate members, the urging force by the urging unit and the rotation preventing force by the rotation preventing unit can be easily set to optimum values, respectively.

前記付勢手段と前記回転防止手段とを同一部材で形成する構成によれば、部品点数の削減を図ることができる。   According to the configuration in which the urging unit and the rotation preventing unit are formed of the same member, the number of parts can be reduced.

本発明の第二実施形態によれば、検出器52を支持する支持部材53が、傾倒カムとしてのカム部材54のカム面541によって、回転出力軸511に直交する方向へ傾倒することができる。したがって、検出器52を支持する支持部材53を回転させるだけの構成に比較して、測定範囲を広くすることができる。また、回転方向に直交する方向に測定範囲を拡げることができるから、複数の検出器を備える構成としなくとも、測定範囲を拡げることができる。また、カム部材54のカム面541の形状を変えることで、検出器52の軌跡を様々に変えることができ、測定範囲を拡げることができる。   According to the second embodiment of the present invention, the support member 53 that supports the detector 52 can be tilted in the direction orthogonal to the rotation output shaft 511 by the cam surface 541 of the cam member 54 as a tilt cam. Therefore, the measurement range can be widened as compared with the configuration in which the support member 53 that supports the detector 52 is simply rotated. Further, since the measurement range can be expanded in the direction orthogonal to the rotation direction, the measurement range can be expanded without using a configuration including a plurality of detectors. Further, by changing the shape of the cam surface 541 of the cam member 54, the locus of the detector 52 can be changed variously, and the measurement range can be expanded.

傾倒部としてカム部材54のカム面541を採用し、支持部材53の傾倒当接部133により支持部材13を傾倒させることで、支持部材53を簡略な構成により傾倒させることができる。   By adopting the cam surface 541 of the cam member 54 as the tilting portion and tilting the support member 13 by the tilting contact portion 133 of the support member 53, the support member 53 can be tilted with a simple configuration.

支持部材53を支承部としての頂部533に付勢する付勢手段としてのコイルバネ56を有している構成によれば、支持部材53の軸線方向のがたつきを防止することができるので、支持部材13の傾倒角度の安定化を図ることができる。   According to the configuration having the coil spring 56 as the biasing means for biasing the support member 53 to the top portion 533 as the support portion, the support member 53 can be prevented from rattling in the axial direction. It is possible to stabilize the tilt angle of the member 13.

以上、本発明の各種実施形態について説明したが、本発明は、前記実施形態に限定されるものではなく、その趣旨を逸脱しない範囲で種々の改変が可能であることはいうまでもない。   While various embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made without departing from the spirit of the present invention.

1a 測定装置
11 回転動力源
111 回転出力軸
12 検出器
13 支持部材
131 筐体
132 支承部
133 傾倒当接部
134 傾倒当接部の係合部
135 回動当接部
136 回動当接部の係合部
14 ケーシング
141 ガイド部
142 スリット
15 蓋体
151 貫通孔
16a カム部材
161 傾倒カム(溝カム)
162 第一の曲率を有する部分
163 第二の曲率を有する部分
164 変位部分
165 第一の回動カム
166 第二の回動カム
17 締め付けコイルバネ
18 ワッシャ
19 コイルバネ
20 回転規制部材
201 締め付け部
202 係合部
21 支承部支持部材
DESCRIPTION OF SYMBOLS 1a Measuring apparatus 11 Rotation power source 111 Rotation output shaft 12 Detector 13 Support member 131 Case 132 Supporting part 133 Tilt contact part 134 Tilt contact part engagement part 135 Rotation contact part 136 Rotation contact part Engagement part 14 Casing 141 Guide part 142 Slit 15 Lid body 151 Through hole 16a Cam member 161 Tilt cam (groove cam)
162 Part having first curvature 163 Part having second curvature 164 Displacement part 165 First rotating cam 166 Second rotating cam 17 Tightening coil spring 18 Washer 19 Coil spring 20 Rotation restricting member 201 Tightening part 202 Engagement Part 21 Bearing support member

Claims (10)

検出器と、該検出器の向きを可変可能に支持する支持部材と、該支持部材を駆動して前記検出器の向きを可変させる駆動部材と、を有する測定装置であって、
前記駆動部材は、自らの支承部によって回動および傾倒可能に支持された前記支持部材に当接して該支持部材を回動させる回動部と前記支持部材を傾倒させる傾倒部とを有し、
前記支持部材は、前記傾倒部としての傾倒カムが当接する傾倒当接部を有していることを特徴とする測定装置。
A measuring apparatus comprising: a detector; a support member that variably supports the direction of the detector; and a drive member that drives the support member to change the direction of the detector,
The drive member may have a and tilt portions for tilting the support member and in contact with the support member is rotated and tiltably supporting rotating unit for rotating the support member by its own bearing,
The measuring apparatus according to claim 1, wherein the support member has a tilt contact portion that a tilt cam as the tilt portion contacts .
前記支持部材は、前記回動部としての動カムが当接する回動当接部を有していることを特徴とする請求項に記載の測定装置。 Wherein the support member, the measuring device according to claim 1, characterized in that rotating cams as the rotating portion has a contact with rotating abutment. 前記支承部は、回動および傾倒が可能な支点であって、前記支承部と前記傾倒当接部が前記傾倒カムに係合する係合部とを通る直線が、径方向にのみ移動可能に前記支持部材をガイドするガイド部を有し、該ガイド部によって前記支持部材が前記傾倒カムの回動に伴って径方向に移動し、前記支持部材が傾倒することを特徴とする請求項に記載の測定装置。 The support portion is a fulcrum that can be rotated and tilted, and a straight line passing through the support portion and the engaging portion where the tilt contact portion engages with the tilt cam is movable only in the radial direction. has a guide portion for guiding the support member, to claim 1, wherein the support member by the guide portion is moved in the radial direction with the rotation of the tilting cam, said support member characterized in that the tilting The measuring device described. 前記ガイド部を有するケース体に、前記支承部を支持する支持部を形成し、前記支持部材を回動および傾倒が可能に支持させたことを特徴とする請求項に記載の測定装置。 The measurement apparatus according to claim 3 , wherein a support portion that supports the support portion is formed on the case body having the guide portion, and the support member is supported so as to be able to rotate and tilt. 前記傾倒カムは溝カムであって、該溝カムによって前記傾倒当接部の径方向の位置が規制されることを特徴とする請求項に記載の測定装置。 The measuring apparatus according to claim 3 , wherein the tilt cam is a groove cam, and the position of the tilt contact portion in the radial direction is regulated by the groove cam. 前記回動部としての回動カムと前記傾倒部としての傾倒カムとは、共にカム部材の同一平面に形成されていることを特徴とする請求項1に記載の測定装置。   The measuring apparatus according to claim 1, wherein the rotating cam as the rotating portion and the tilting cam as the tilting portion are both formed on the same plane of the cam member. 前記カム部材は回動可能に構成され、該カム部材の回動中心の内側に傾倒カムを配設するとともに外側に回動カムを配設したことを特徴とする請求項に記載の測定装置。 The measuring apparatus according to claim 6 , wherein the cam member is configured to be rotatable, and a tilt cam is disposed inside a rotation center of the cam member and a rotation cam is disposed outside. . 前記支持部材を前記支持部に付勢する付勢手段を有していることを特徴とする請求項に記載の測定装置。 The measuring apparatus according to claim 4 , further comprising an urging unit that urges the support member toward the support portion. 前記支持部材は、前記付勢手段とは異なるフリクション機構を介して支持部に支持されていることを特徴とする請求項に記載の測定装置。 The measuring apparatus according to claim 8 , wherein the support member is supported by a support portion via a friction mechanism different from the biasing unit. 前記支承部は球面であり、前記支持部は前記支承部と係合可能な結合凹部であることを特徴とする、請求項または請求項に記載の測定装置。 The bearing portion is a spherical surface, wherein the support portion is the bearing portion engageable with coupling recesses, measuring device according to claim 4 or claim 8.
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