JP2004361370A

JP2004361370A - Sensor fixture

Info

Publication number: JP2004361370A
Application number: JP2003176302A
Authority: JP
Inventors: Shinya Yanagida; 伸也柳田; Takenobu Sofugawa; 武伸曽布川; Katsuyuki Tanaka; 克幸田中
Original assignee: Hoshizaki Electric Co Ltd
Current assignee: Hoshizaki Electric Co Ltd
Priority date: 2003-04-10
Filing date: 2003-06-20
Publication date: 2004-12-24

Abstract

PROBLEM TO BE SOLVED: To provide a sensor fixture capable of preventing the falling-off of the sensor at attachment work, and capable of surely contacting a sensor to an object to be measured. SOLUTION: A presser member 21 with a presser piece 23 arranged thereon is provided on a holder 10, where this presser member 21 is displaceable between a standby position, where the presser piece 23 is noninterference against the detector 2 of a thermistor 1 housed in a holding recess 13, and a pressure contact position where the presser piece 23 enters into the notched part 15 of a holding member 11 to pressure-contact the detector 2 to a wall surface 4. According to such a structure, since the detector 2 is housed in the back end side of the holding recess 13 and can be held so as to be easily run off, by setting the presser member 21 at the standby position during the attachment work, workability is improved. The presser member 21 is at the pressure contact position and contacting to the wall surface 4 of the detector 2 can be ensured, after attaching the thermistor 1, and then a wall surface temperature can be precisely detected. COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、センサ取付具に関する。
【０００２】
【従来の技術】
従来、冷蔵庫や冷凍庫としては、壁部が冷却されることにより、その壁部に囲まれた冷却室内が間接的に冷却されるタイプのものがある。このような冷蔵庫や冷凍庫においては、庫内温度の制御、あるいは除霜終了の検知などの目的のために、庫内壁面の温度を検出するサーミスタが取り付けられることがある（特許文献１、特許文献２参照）。
サーミスタを庫内壁面に取り付けるのに用いるサーミスタホルダは、例えば図３０に示すように、サーミスタ２０２の検知部２０３を保持する保持凹部２０１を設けた保持片２０５と、この保持片２０５に連結される取付片２０６とで構成されている。取付の際には、まずサーミスタ２０２の検知部２０３を保持凹部２０１に収容したのち、取付片２０６を壁面２０４にビス止めことにより、サーミスタ２０２を壁面２０４に接触させた状態で固定する（特許文献３参照）。
【０００３】
【特許文献１】
特公平３−４５３０６号公報
【０００４】
【特許文献２】
実公昭４８−９７２５号公報
【０００５】
【特許文献３】
実開昭６０−７９６７５号公報
【０００６】
【発明が解決しようとする課題】
ところで、壁面温度を正確に検知するためには、サーミスタ２０２の検知部２０３が壁面２０４に確実に接触していることが必要である。このため、従来のサーミスタホルダ２００では、保持凹部２０１の深さＨを、サーミスタ２０２における検知部２０３の直径Ｄよりも浅くなるように形成し、検知部２０３が保持凹部２０１から飛び出した状態で保持されるようにしていた。
しかし、保持凹部２０１が浅いために、サーミスタ２０２の壁面２０４への取り付け作業において、サーミスタホルダ２００の取り付け位置への位置合わせを行っている最中に検知部２０３が保持凹部２０１から外れやすい、という問題が生じていた。このため、位置合わせの際に、サーミスタホルダ２００を持つのとは逆側の手で検知部２０３が外れないように支えていなければならず、不便であった。
【０００７】
また、従来のサーミスタホルダ２００は、取付片２０６の一端部を壁面２０４にねじ２０７で止めることにより固定されている。しかし、サーミスタホルダ２００は一般に樹脂により形成されており、周囲温度の変化によって収縮−膨張する。このため、長期間にわたる使用中に、この収縮−膨張の繰り返しによってねじが緩み、サーミスタを壁面２０４に密着できなくなってしまうおそれがある。特に、除霜運転の終了検知用サーミスタの固定のために使用する場合には、その用途上、周囲温度の変化の大きい環境下に置かれることとなるため、このような問題が顕著となる。
【０００８】
本発明は、上記した事情に鑑みてなされたものであり、その目的は、取り付け作業時のセンサの脱落を防止でき、センサを被測定物に確実に接触させることのできるセンサ取付具を提供することにある。
【０００９】
【課題を解決するための手段】
上記の課題を解決するために請求項１の発明に係るセンサ取付具は、被測定物に接触して測定を行う検知部を備えたセンサを前記被測定物の所定箇所に取り付けるためのセンサ取付具であって、前記被測定物との接触面側に開口するとともに内部に前記検知部を収容可能な保持部と、前記保持部の一部を切り欠いてこの保持部に収容された検知部の一部を露出させる切り欠き部とを備えた保持部材と、前記切り欠き部に進入可能な押さえ片が設けられた押さえ部材とを備え、前記押さえ部材が、前記保持部に収容された前記検知部に対して前記押さえ片が非干渉となる待機位置と、前記押さえ片が前記切り欠き部内に進入して前記検知部を前記被測定物に圧接する圧接位置との間で変位可能とされていることを特徴とする。
【００１０】
請求項２の発明は、請求項１に記載のセンサ取付具であって、前記押さえ部材が、前記保持部材と一体に形成されて前記待機位置と前記圧接位置との間で回動可能とされていることを特徴とする。
【００１１】
請求項３の発明は、被測定物に接触して測定を行う検知部を備えたセンサを前記被測定物の所定箇所に取り付けるためのセンサ取付具であって、前記被測定物に固定される固定部と、前記固定部に重ねられて前記センサを前記被測定物に圧接する押さえ部が設けられた押さえ部材と、前記固定部および前記押さえ部材のうち一方に設けられて他方と係合することで、前記押さえ部材を前記固定部に重ねられた状態に保持可能な係合部とを備えることを特徴とする。
【００１２】
請求項４の発明は、請求項３に記載のセンサ取付具であって、前記固定部は固定具により前記被測定物に固定されているとともに、前記押さえ部材には、前記固定部に重ねられて前記固定具を覆う覆い部が設けられていることを特徴とする。
【００１３】
請求項５の発明は、請求項１〜請求項４のいずれかに記載のセンサ取付具であって、前記押さえ部材には、この押さえ部材の移動時に指を引っ掛けて変位操作可能な指掛け部が突設されていることを特徴とする。
【００１４】
【発明の作用及び効果】
請求項１の発明によれば、センサ取付具には押さえ片が設けられた押さえ部材が取り付けられており、この押さえ部材は、保持部に収容された検知部に対して押さえ片が非干渉となる待機位置と、押さえ片が保持部材の切り欠き部内に進入して検知部を被測定物に圧接する圧接位置との間で変位可能とされている。このような構成によれば、センサの取り付け作業中には、押さえ部材を待機位置とすることにより、検知部を保持部の奥方に収容して容易に外れないように保持させることができるから、検知部に手を添えることなくセンサ取付具を片手で保持することができる。このため、作業者はセンサ取付具を片手で保持するとともに、あらかじめもう一方の手にセンサ取付具を固定するためのねじや取付工具等を持った状態で、位置合わせ動作を行うことができる。これにより、作業性が向上する。一方、センサを取り付けた後においては、押さえ部材を圧接位置として検知部の被測定物への接触性を確保できるから、温度を正確に検知できる。
【００１５】
請求項２の発明によれば、押さえ部材が、保持部材と一体に形成されて待機位置と圧接位置との間で回動可能とされている。このような構成によれば、押さえ部材を取り付け作業中に取り落としたり、保管中に紛失したりといったことが回避でき、取り扱いに便利となる。
【００１６】
請求項３の発明によれば、押さえ部材は、係合部により圧接位置に保持されるようになっている。このような構成によれば、押さえ部材を圧接位置に保持するためのねじ等が不要となるので、ホルダ使用中にこのねじが緩んで押さえ部材が圧接位置から外れてしまう、といったことがない。このため、サーミスタの被測定物への接触性を長期にわたって確保できる。
【００１７】
請求項４の発明によれば、押さえ部材には、固定具を覆う覆い部が設けられている。このような構成によれば、押さえ部材が圧接位置にあるときには、覆い部材によって固定具が覆われることにより、ホルダ使用中における固定具の緩みを抑制できる。これにより、サーミスタの被測定物への接触性を長期にわたって確保できる。
【００１８】
請求項５の発明によれば、押さえ部材には指掛け部が設けられている。このような構成によれば、押さえ部材の変位操作が容易となり、作業性が向上する。
【００１９】
【発明の実施の形態】
＜第１実施形態＞
以下、本発明のセンサ取付具を具体化した第１実施形態について、図１〜図５を参照しつつ詳細に説明する。本実施形態のサーミスタホルダ１０（本発明のセンサ取付具に該当する。以下、「ホルダ１０」のように略記する）は、冷蔵庫内の温度を検知するためのサーミスタ１（本発明のセンサに該当する）を、庫内の壁面４（本発明の非測定物に該当する）に接触させて保持するためのものである。なお、以下の説明において、ホルダ１０が壁面４と接触する面側（図１において下面側）を接触面側、この接触面側と逆側（図１において上面側）を背面側として説明する。
【００２０】
本実施形態において、庫内に取り付けられるサーミスタ１は、断面円形の棒状に形成された検知部２と、この検知部２の一端側から引き出されたリード部３とを備えている。リード部３は、庫内温度を制御する制御装置（図示せず）に接続されている。
本実施形態のホルダ１０は、弾性を有する樹脂材により一体に形成されており、サーミスタ１を保持するための保持部材１１と、サーミスタ１を壁面４に圧接するための押さえ部材２１とを備えている（図１〜図３参照）。
【００２１】
保持部材１１は、矩形板状に形成されて壁面４に固着される固定板１２と、この固定板１２に連設された保持凹部１３（本発明の保持部に該当する）とを備えている。固定板１２には、この固定板１２を壁面４にねじ止めするためのねじ穴１６が２ヶ所に設けられている。
保持凹部１３は、固定板１２の端縁を背面側に立ち上げ、さらにその先端を折り返すことによって、接触面側に開口するＵ字状に形成されている。保持凹部１３の深さＨは検知部２の直径よりも大きくされており、検知部２が奥まで押し込まれた状態では、その一部が開口部１４から飛び出さないようになっている。また、保持凹部１３の幅方向中央位置には、保持凹部１３の外周縁に沿って幅広の切り欠き部１５が設けられて、保持凹部１３内に収容された検知部２の一部が露出されるようになっている。
【００２２】
保持部材１１の固定板１２には、押さえ部材２１が連設されている。押さえ部材２１は、固定板１２とほぼ同じ形状に形成されて、固定板１２における保持凹部１３と対向する端縁部に連結された固着板２２と、この固着板２２から突設された押さえ片２３とを備えて凸状に形成されている。固定板１２と固着板２２の境界線上には、Ｖ字状の溝部を設けることによりヒンジ部２５が形成されており、これにより押さえ部材２１が保持部材１１に対して、保持部材１１から離間した待機位置（図１）と、保持部材１１の背面に重ねられる圧接位置（図５）との間で回動可能とされている。また、固着板２２には、押さえ部材２１が圧接位置に回動された時に固定板１２のねじ穴１６と整合するねじ穴２４が２ヶ所に形成されている。
押さえ片２３は、押さえ部材２１が圧接位置に回動された時に切り欠き部１５に整合する位置に突出されており、切り欠き部１５内に進入して検知部２を奥端側から開口部１４側へ押し下げるようにされている。
【００２３】
次に、上記のように構成された本実施形態の作用および効果について説明する。
【００２４】
サーミスタ１を庫内の壁面４に取り付ける際には、まず、サーミスタ１の検知部２をホルダ１０の保持凹部１３に奥端側まで押し込んで収容する（図１参照）。このとき、保持凹部１３の深さＨは検知部２の直径よりも大きくされており、検知部２が開口部１４から飛び出さない状態で保持できるようになっている。これにより、作業者が検知部２に手を添えることなく保持部材１１を片手で保持したとしても、検知部２が保持凹部１３から容易には外れないようになっている。
この状態で、保持部材１１を壁面４に当て、取り付け位置へ位置合わせする。このとき、押さえ部材２１は保持部材１１から離間した待機位置にあり、検知部２と干渉しない。この状態では、上述のように検知部２が保持凹部１３の奥端側に収容されて、保持凹部１３から容易には外れないようになっている。したがって、作業者はホルダ１０を片手で保持するとともに、もう一方の手にあらかじめホルダ１０を固定するための取り付けねじ６や取付工具等を持った状態で、位置合わせ動作を行うことができる。
【００２５】
位置合わせが終了したら、押さえ部材２１を保持部材１１の背面に重なる方向へ回動させる。押さえ部材２１が、保持凹部１３の上端に達する位置まで回動されると、押さえ片２３が切り欠き部１５に進入し、検知部２を開口部１４側へ押し下げる（図４参照）。そして、押さえ部材２１がさらに回動されて保持部材１１の背面に重なる圧接位置に達すると、検知部２は押さえ片２３の押圧力によって、壁面４に接触する位置まで押し下げられる（図５参照）。
この状態では、固定板１２および固着板２２の２対のねじ穴１６、２４、および壁面４のねじ穴５がそれぞれ整合されているので、ここに取り付けねじ６をねじ付けることにより、ホルダ１０を壁面４に固定する。ホルダ１０が固定された状態では、押さえ部材２１の押さえ片２３は、壁面４との間に検知部２が介在することにより背面側へ撓み、弾性復元力によって検知部２を壁面４に圧接する。このため、検知部２と壁面４との接触性が保たれ、壁面温度が正確に検知される。
【００２６】
以上のように本実施形態によれば、ホルダ１０には押さえ片２３が設けられた押さえ部材２１が備えられており、この押さえ部材２１は、保持凹部１３に収容されたサーミスタ１の検知部２に対して押さえ片２３が非干渉となる待機位置と、押さえ片２３が保持部材１１の切り欠き部１５内に進入して検知部２を壁面４に圧接する圧接位置との間で変位可能とされている。このような構成によれば、サーミスタ１の取り付け作業中には、押さえ部材２１を待機位置とすることにより、検知部２を保持凹部１３の奥端側に収容して容易に外れないように保持させることができるから、検知部２に手を添えることなくホルダ１０を片手で保持することができる。このため、作業者はホルダ１０を片手で保持するとともに、あらかじめもう一方の手にホルダ１０を固定するための取り付けねじ６や取付工具等を持った状態で、位置合わせ動作を行うことができる。これにより、作業性が向上する。一方、サーミスタ１を取り付けた後においては、押さえ部材２１が圧接位置となり、検知部２の壁面４への接触性を確保できるから、壁面温度を正確に検知できる。
【００２７】
また、押さえ部材２１が、保持部材１１と一体に形成されているから、押さえ部材２１を取り付け作業中に取り落としたり、保管中に紛失したりといったことが回避でき、取り扱いに便利となる。
【００２８】
＜第２実施形態＞
以下、本発明の第２実施形態について、図６〜図１０を参照しつつ説明する。本実施形態のホルダ３０の第１実施形態との主たる相違点は、押さえ部材４１が保持部材３１と別体に形成されている点である。なお、本実施形態において、第１実施形態と同一の構成には同一の符号を付して説明を省略する。
【００２９】
本実施形態のホルダ３０は、第１実施形態と同様に保持部材３１と押さえ部材４１とを備えている（図６〜図８参照）。
保持部材３１は、樹脂材により形成され、第１実施形態と同様に、矩形状の固定板３２と、この固定板３２に連接された保持凹部３３とを備えている。固定板３２の背面側において中央位置には、押さえ部材４１を保持部材３１とを繋ぐための突起部３７が立設されている。突起部３７は円柱状に形成されており、その上面側には、押さえ部材４１を保持部材に止め付けるためのビス４７をねじ付けるビス穴３８が設けられている。
押さえ部材４１は、弾性を有する樹脂材等により凸型板状に形成されており、第１実施形態と同様に固着板４２と、この固着板４２から突設された押さえ片４３とを備えている。固着板４２の中央位置には、固定板３２における突起部３７のビス穴３８と整合する位置に、ビス４７を通すための貫通孔４５が設けられている。
【００３０】
サーミスタ１を庫内の壁面４に取り付ける際には、まず、第１実施形態と同様にサーミスタ１の検知部２をホルダ３０の保持凹部３３に奥端側まで押し込んで収容する。
次いで、保持部材３１に押さえ部材４１を組み付ける。まず、押さえ部材４１の貫通孔４５に保持部材３１の突起部３７を挿通させつつ、押さえ部材４１を保持部材３１の背面側へ組み付ける。そして、ワッシャ４６を介して突起部３７のビス穴３８にビス４７をねじ付けることで、押さえ部材４１を抜け止め状態に係止する。このとき、押さえ部材４１は、突起部３７の先端位置（ワッシャ４６に当接する位置）まで浮き上がった待機位置（図９）と、保持部材３１の背面に重ねられる圧接位置（図１０）との間で変位可能とされている。なお、待機状態では、押さえ部材４１は、押さえ片４３が保持凹部３３の奥端側に収容された検知部２よりも上方（保持部材３１から離間する方向）となる位置にあり、押さえ片４３が検知部２と干渉しないようになっている。
【００３１】
この状態で、保持部材３１を壁面４に当て、取り付け位置へ位置合わせする。このとき、押さえ部材４１を待機位置に保持しつつ、位置合わせを行う。この状態では、第１実施形態と同様に検知部２が保持凹部３３の奥端側で保持されて、保持凹部３３から容易には外れないようになっている。したがって、作業者はホルダ３０を片手で保持するとともに、もう一方の手にあらかじめホルダ３０を固定するための取り付けねじ６や取付工具等を持った状態で、位置合わせ動作を行うことができる。
【００３２】
位置合わせが終了したら、押さえ部材４１を保持部材３１側へ押し下げる。すると、押さえ片４３が切り欠き部３５に進入し、検知部２を開口縁側へ押し下げる。そして、押さえ部材４１が保持部材３１の背面に重なる圧接位置に達すると、検知部２は押さえ片４３の押圧力によって壁面４に接触する位置まで押し下げられる（図１０参照）。
次いで、固定板３２および固着板４２の２対のねじ穴３６、４４、および壁面４のねじ穴５に取り付けねじ６をねじ付けることにより、ホルダ３０を壁面４に固定する。ホルダ３０が固定された状態では、押さえ部材４１の押さえ片４３は、第１実施形態と同様にその弾性復元力によって検知部２を壁面４に圧接する。このため、検知部２と壁面４との接触性が保たれ、壁面温度が正確に検知される。
【００３３】
以上のように本実施形態においても、第１実施形態と同様の作用効果を得ることができる。また、保持部材３１と押さえ部材４１とが別体に形成されているので、どちらか一方が破損等した場合には、破損した方のみを取りかえれば良く、コストを削減できる。
【００３４】
＜第３実施形態＞
以下、本発明の第３実施形態について、図１１〜図１６を参照しつつ説明する。本実施形態のホルダ５０は、押さえ部材６１が保持部材５１と別体に形成されている点、および押さえ部材６１と保持部材５１の連結構造において上記各実施形態と相違する。なお、本実施形態において、第１実施形態と同一の構成には同一の符号を付して説明を省略する。
【００３５】
本実施形態のホルダ５０は、第１実施形態と同様に保持部材５１と押さえ部材６１とを備えている（図１１〜図１３参照）。
【００３６】
保持部材５１は、第１実施形態と同様に、樹脂材により形成され、矩形状の固定板５２と、この固定板５２に連接された保持凹部５３とを備えている。固定板５２の背面側において中央位置には、押さえ部材６１を保持部材５１とを繋ぐための係止部５７が設けられている。係止部５７は、固定板５２の背面から上方へ延びる板状の係止片５８の一対が、固定板５２の幅方向に並列されたものである。一対の係止片５８の上端には、それぞれ固定板５２の幅方向外側へ向かって突出する鉤部５９が形成されている。
押さえ部材６１は、弾性を有する樹脂材等により凸型板状に形成されており、第１実施形態と同様に固着板６２と、この固着板６２から突設された押さえ片６３とを備えている。固着板６２の中央位置には、固定板５２における係止部５７と整合する位置に、係止片５８を通すための係止孔６５が設けられており、押さえ部材６１を保持部材５１に組み付けた時に、係止片５８の鉤部５９が係止孔６５に嵌まり込むことによって、押さえ部材６１がが抜け止め状態に保持されるようになっている。
【００３７】
サーミスタ１を庫内の壁面４に取り付ける際には、まず、第１実施形態と同様にサーミスタ１の検知部２をホルダ５０の保持凹部５３に奥端側まで押し込んで収容する。
【００３８】
次いで、押さえ部材６１を保持部材５１の背面側へ組み付ける（図１４）。まず、一対の係止片５８を互いに内側へ撓ませつつ鉤部５９を係止孔６５に進入させる（図１５Ａ）。そして、鉤部５９が係止孔６５を通過したところで、一対の係止片５８を元に戻し、鉤部５９を係止孔６５の開口縁に引っ掛けることで押さえ部材６１を抜け止め状態に係止する（図１５Ｂ）。
このとき、押さえ部材６１は、係止部５７の先端位置（鉤部５９に引っ掛かる位置）まで浮き上がった待機位置（図１４）と、保持部材５１の背面に重ねられる圧接位置（図１６）との間で変位可能とされている。なお、待機状態では、押さえ部材６１は、押さえ片６３が保持凹部５３の奥端側に収容された検知部２よりも上方（保持部材５１から離間する方向）となる位置にあり、押さえ片６３が検知部２と干渉しないようになっている。
【００３９】
この状態で、保持部材５１を壁面４に当て、取り付け位置へ位置合わせする。このとき、押さえ部材６１を待機位置に保持しつつ、位置合わせを行う。この状態では、上記各実施形態と同様に検知部２が保持凹部５３の奥端側で保持されて、保持凹部５３から容易には外れないようになっている。したがって、作業者はホルダ５０を片手で保持するとともに、もう一方の手にあらかじめホルダ５０を固定するための取り付けねじ６や取付工具等を持った状態で、位置合わせ動作を行うことができる。
【００４０】
位置合わせが終了したら、押さえ部材６１を保持部材５１側へ押し下げる。すると、押さえ片６３が切り欠き部５５に進入し、検知部２を開口縁側へ押し下げる。そして、押さえ部材６１が保持部材５１の背面に重なる圧接位置に達すると、検知部２は押さえ片６３の押圧力によって壁面４に接触する位置まで押し下げられる（図１６参照）。
次いで、固定板５２および固着板６２の２対のねじ穴５６、６４、および壁面４のねじ穴５に取り付けねじ６をねじ付けることにより、ホルダ５０を壁面４に固定する。ホルダ５０が固定された状態では、押さえ部材６１の押さえ片６３は、上記各実施形態と同様にその弾性復元力によって検知部２を壁面４に圧接する。このため、検知部２と壁面４との接触性が保たれ、壁面温度が正確に検知される。
【００４１】
以上のように本実施形態においても、上記各実施形態と同様の作用効果を得ることができる。
【００４２】
＜第４実施形態＞
以下、本発明の第４実施形態について、図１７〜図２０を参照しつつ説明する。なお、本実施形態において、第１実施形態と同一の構成には同一の符号を付して説明を省略する。
【００４３】
本実施形態のホルダ７０は、第１実施形態と同様に、弾性を有する樹脂材等により一体に形成され、保持部材７１と押さえ部材８１とを備えている（図１７、図１８参照）。
保持部材７１は、第１実施形態と同様に、矩形状の固定板７２（本発明の固定部に該当する）と、この固定板７２に連接された保持凹部７３とを備えており、この保持凹部７３には切り欠き部７５が設けられている。固定板７２には、この固定板７２を壁面４にねじ止めするためのねじ穴７６が２ヶ所に設けられており、ここに取り付けねじ７（本発明の固定具に該当する）をねじ付けることにより、ホルダ７０が壁面４に固定されるようになっている。
保持部材７１の固定板７２には、第１実施形態と同様に、固着板８２（本発明の覆い部に該当する）と押さえ片８３とを備えた凸状の押さえ部材８１が、ヒンジ部８５を介して回動可能に連設されている。固着板８２において固定板７２におけるねじ穴７６と整合する部分は、背面側（固定板９２との対向面側と逆側）に僅かに膨出されており、これにより、取り付けねじ７の頭部７Ａを収容可能な窪み部８４が形成されている。
また、押さえ片８３の両側縁８３Ａ、すなわちこの押さえ片８３が切り欠き部７５に侵入した際に切り欠き縁７５Ａと対向する縁部には、半球状に形成された一対の係合突起８６（本発明の係合部に該当する）が設けられている。
【００４４】
サーミスタ１を庫内の壁面４に取り付ける際には、まず、第１実施形態と同様にサーミスタ１の検知部２をホルダ７０の保持凹部７３に奥端側まで押し込んで収容する。この状態で、保持部材７１を壁面４に当て、取り付け位置へ位置合わせし、取り付けねじ７によって固定する（図１９参照）。このとき、第１実施形態と同様に、検知部２が保持凹部７３の奥端側に収容されて、保持凹部７３から容易には外れないようになっているから、作業者はホルダ７０を片手で保持するとともに、もう一方の手にあらかじめホルダ７０を固定するための取り付けねじ７や取付工具等を持った状態で、位置合わせ動作を行うことができる。
位置合わせが終了したら、押さえ部材８１を保持部材７１の背面に重なる方向へ回動させる。押さえ部材８１が保持凹部７３に達する位置まで回動されると、係合突起８６が保持凹部７３の切り欠き縁７５Ａを乗り越えて押さえ片８３が切り欠き部７５に進入し、検知部２を壁面４に接触する位置まで押し下げる。そして、係合突起８６が保持凹部７３の奥端面に係合することによって、押さえ部材８１が保持部材７１の背面に重なる圧接位置で保持される（図２０参照）。
【００４５】
この状態では、押さえ部材８１の押さえ片８３が検知部２を壁面４に圧接するから、検知部２と壁面４との接触性が保たれ、壁面温度が正確に検知される。
また、押さえ部材８１の固着板８２が保持部材７１の固定板７２の背面に重ねられ、取り付けねじ７が、その頭部７Ａが窪み部８４内に収容された状態で固着板８２に覆われている。このため、ホルダ７０が温度変化の大きい環境下で使用され、収縮−膨張を繰り返したとしても、取り付けねじ７の緩みを抑制でき、サーミスタ１の壁面４への接触性を長期にわたって確保できる。
【００４６】
＜第５実施形態＞
以下、本発明の第５実施形態について、図２１〜図２４を参照しつつ説明する。なお、本実施形態において、第１実施形態と同一の構成には同一の符号を付して説明を省略する。
【００４７】
本実施形態のホルダ９０は、第４実施形態と同様に、弾性を有する樹脂材等により一体に形成され、保持部材９１と押さえ部材１０１とを備えている（図２１参照）。
保持部材９１は、第４実施形態と同様に、矩形状の固定板９２を備えており、この固定板９２には保持部１２３が連接されている。固定板９２には、この固定板９２を壁面４にねじ止めするためのねじ穴９６が２ヶ所に設けられており、ここに取り付けねじ７をねじ付けることにより、ホルダ９０が壁面４に固定されるようになっている。
保持部１２３は、固定板９２の端縁を背面側に立ち上げ、さらにその先端を固定板９２側とは逆側に向けて折り曲げることによって、逆Ｌ字状に形成されている。これにより、保持部１２３は、接触面側とともに、先端面側（固定板９２からの立ち上がり壁と対向する面側）が大きく開放された構造となっている。また、保持部１２３の幅方向中央位置には、保持部１２３の外周縁に沿って幅広の切り欠き部９５が設けられて、保持部１２３内に収容された検知部２の一部が背面側に露出されるようになっている。
【００４８】
保持部材９１の固定板９２には、第１実施形態と同様に、固着板１０２と押さえ片１０３とを備えた凸状の押さえ部材１０１が、ヒンジ部１０５を介して回動可能に連設されている。固着板１０２には、第４実施形態と同様に、取り付けねじ７の頭部７Ａを収容可能な窪み部１０４が形成されている。また、押さえ片１０３の両側縁１０３Ａには、第４実施形態と同様に半球状に形成された一対の係合突起１０６が設けられている。
また、押さえ片１０３の突出端には、保持部材９１との対向面側に向かって延設されたサーミスタ押さえ部１０７Ａ、および押さえ片１０３の突出方向に沿って突設された指掛け部１０７Ｂが設けられている。
【００４９】
サーミスタ１を庫内の壁面４に取り付ける際には、まず、保持部材９１を壁面４に当て、取り付け位置へ位置合わせし、取り付けねじ７によって固定する（図２２参照）。
次いで、サーミスタ１の検知部２をホルダ９０の保持部１２３の内周面に宛がいつつ、指掛け部１０７Ｂに指を掛けて押さえ部材１０１を保持部材９１の背面に重なる方向へ回動させる（図２３参照）。押さえ部材１０１が保持部材９１に達する位置まで回動されると、係合突起１０６が保持部１２３の切り欠き縁９５Ａを乗り越えて押さえ片１０３が切り欠き部９５に進入し、検知部２を壁面４に接触する位置まで押し下げる。そして、係合突起１０６が保持部１２３の内周面に係合することによって、押さえ部材１０１が保持部材９１の背面に重なる圧接位置で保持される（図２４参照）。
【００５０】
このとき、サーミスタ押さえ部１０７Ａが保持部１２３の先端側を閉塞し、このサーミスタ押さえ部１０７Ａと保持部１２３とにより形成される収容空間Ｓ内にサーミスタ１が収容される。そして、押さえ部材１０１の押さえ片１０３が検知部２を壁面４に圧接するから、検知部２と壁面４との接触性が保たれ、壁面温度が正確に検知される。
また、第４実施形態と同様に、押さえ部材１０１の固着板１０２が保持部材９１の固定板９２の背面に重ねられ、取り付けねじ７が固着板１０２に覆われている。このため、ホルダ９０が温度変化の大きい環境下で使用され、収縮−膨張を繰り返したとしても、取り付けねじ７の緩みを抑制でき、サーミスタ１の壁面４への接触性を長期にわたって確保できる。
さらに、押さえ部材１０１には指掛け部１０７Ｂが設けられているから、押さえ部材１０１の回動操作が容易となる。
【００５１】
また、サーミスタ１は、庫内において扉近くに設置されていると収納物の出し入れの邪魔になる等の理由から、奥側に設置されることが一般的である。したがって、第１実施形態のようにホルダ１０に先にサーミスタ１を取り付けてから壁面４への取り付けを行うタイプのものであると、ホルダ１０を庫内奥方へ導入する際にサーミスタ１のリード部３が邪魔になったり、リード部３に引っ張られてサーミスタ１がホルダ１０から脱落してしまう、等の事態が生じ、作業がしにくい場合がある。
しかし、本実施形態のホルダ９０では、保持部１２３がＬ字型に形成されて先端側に大きく開放されており、押さえ部材１０１を圧接位置に回動させることによってこの開放面が覆われる構成となっているので、ホルダ９０を壁面４に固定してからサーミスタ１のホルダ９０への取り付けを行えばよい。さらに、サーミスタ１の取り替えを行う際には、押さえ部材１０１を回動させて保持部材９１から離間させ、保持部１２３の先端側を開放してここからサーミスタ１の取り外しを行うことができる。したがって、ホルダ９０をいちいち壁面４から取り外す必要がなく、メンテナンス作業がきわめて容易となる。さらには、ホルダ９０をいったん取り外し、再度取り付ける際に取り付け位置や取り付け方向を間違える、といった事態が生じることを防止できる。
また、押さえ部材１０１には指掛け部１０７Ｂが設けられているから、この指掛け部１０７Ｂに指を掛けて押さえ部材１０１を保持部材９１から離間する方向へ回動させればよい。これにより、押さえ部材１０１の回動操作が容易となる。
【００５２】
＜第６実施形態＞
以下、本発明の第６実施形態について、図２５〜図２９を参照しつつ説明する。なお、本実施形態において、第１実施形態と同一の構成には同一の符号を付して説明を省略する。
【００５３】
本実施形態のホルダ１１０は、弾性を有する樹脂材により一体に形成されており、壁面４に固定される固定板１１１と、サーミスタ１を保持するための保持部材１２１とを備えている（図２５、図２６参照）。
固定板１１１は、樹脂材により矩形状に形成されており、その背面側において中央位置には、固定板１１１に保持部材１２１を係止するための係止部１１２（本発明の係合部に該当する）が設けられている。係止部１１２は、固定板１１１の背面から上方へ延びる板状の係止片１１３の一対が、固定板１１１の幅方向に並列されたものである。一対の係止片１１３の上端には、それぞれ固定板１１１の幅方向外側へ向かって突出する鉤部１１４が形成されている。また、固定板１１１には、この固定板１１１を壁面４にねじ止めするためのねじ穴１１５が２ヶ所に設けられており、ここに取り付けねじ７をねじ付けることにより、ホルダ１１０が壁面４に固定されるようになっている。
【００５４】
この固定板１１１には、保持部材１２１が連接されている。保持部材１２１は、固定板１１１とほぼ同じ形状に形成されて、固定板１１１の端縁部に連結された固着板１２２を備えている。固定板１１１と固着板１２２の境界線上には、Ｖ字状の溝部を設けることによりヒンジ部１２５が形成されており、これにより保持部材１２１が固定板１１１に対して、固定板１１１から離間した離間位置（図２７）と、固定板１１１の背面に重ねられる積層位置（図２９）との間で回動可能とされている。
固着板１２２の中央位置には、固定板１１１における係止部１１２と整合する位置に、係止片１１３を通すための係止孔１２６が設けられており、保持部材１２１を接触位置に回動した時に、係止片１１３の鉤部１１４が係止孔１２６に嵌まり込むことによって、保持部材１２１がが抜け止め状態に保持されるようになっている。また、固着板１２２には、第４実施形態と同様に取り付けねじ７の頭部７Ａを収容可能な窪み部１２４が形成されている。
【００５５】
固着板１２２において固定板１１１と連結されている側と対向する端縁部には、保持溝１２３が連接されている。保持溝１２３は、固着板１２２の端縁を背面側に立ち上げ、さらにその先端を折り返して固着板１２２における固定板１１１との対向面から僅かに突出する長さにまで延出することによって、接触面側に開口するＪ字状に形成されている。この保持溝１２３内には、検知部２が接触面側に僅かに飛び出した状態で保持されるようになっている。
【００５６】
サーミスタ１を庫内の壁面４に取り付ける際には、まず、固定板１１１を壁面４に当て、取り付け位置へ位置合わせし、取り付けねじ７によって固定する（図２７参照）。
次いで、サーミスタ１の検知部２をホルダ１１０の保持溝１２３の内周面に宛がいつつ、保持部材１２１を固定板１１１の背面に重なる方向へ回動させる（図２８参照）。このとき、一対の係止片１１３を互いに内側へ撓ませつつ鉤部１１４を係止孔１２６に進入させる。そして、保持部材１２１が固定板１１１の背面に重なる積層位置に達するまで回動されると、鉤部１１４が係止孔１２６を通過して一対の係止片１１３が元に戻され、鉤部１１４が係止孔１２６の開口縁に引っ掛けられることで、保持部材１２１が固定板１１１に密着した状態で保持され、同時に、保持溝１２３に収容されたサーミスタ１の検知部２が壁面４に接触した状態で保持される（図２９参照）。
【００５７】
このとき、固定板１１１が保持部材１２１の固着板１２２の背面に重ねられ、取り付けねじ７が固着板１２２に覆われている。このため、サーミスタホルダ１１０が温度変化の大きい環境下で使用され、収縮−膨張を繰り返したとしても、取り付けねじ７の緩みを抑制でき、サーミスタ１の壁面４への接触性を長期にわたって確保できる。
【００５８】
また、保持部材１２１は離間位置と積層位置との間で回動可能であり、離間位置にあるときには保持溝１２３が大きく開放されるようになっている。したがって、ホルダ１１０を壁面４に固定してからサーミスタ１のホルダ１１０への取り付けを行えばよい。
さらに、サーミスタ１の取り替えを行う際には、係止片１１３を内側に撓ませて鉤部１１４の係止孔１２６への係合を解除し、保持部材１２１を離間位置まで回動させてから、サーミスタ１の取り外しを行えば良い。このため、第５実施形態と同様、ホルダ１１０をいちいち壁面４から取り外す必要がなく、メンテナンス作業がきわめて容易となる。さらには、ホルダ１１０をいったん取り外し、再度取り付ける際に取り付け位置や取り付け方向を間違える、といった事態が生じることを防止できる。
【００５９】
本発明の技術的範囲は、上記した実施形態によって限定されるものではなく、例えば、次に記載するようなものも本発明の技術的範囲に含まれる。その他、本発明の技術的範囲は、均等の範囲にまで及ぶものである。
（１）上記各実施形態では、本発明を、サーミスタ１を冷蔵庫内の壁面４に取り付けるサーミスタホルダホルダに適用しているが、本発明のセンサ取り付け具の構成は、サーミスタホルダに限らず、被測定物に接触して測定を行う検知部を備えたセンサを取り付けるためのものに広く適用できる。
（２）第１実施形態〜第３実施形態では、押さえ部材２１、４１、６１は弾性を有する樹脂材により形成されているが、押さえ部材の材質は、圧接位置に配された時に撓み、その弾性復元力により検知部を壁面に圧接可能なものであればよく、例えばゴム材であってもよい。
（３）第４実施形態〜第６実施形態では、固着板８２、１０２、１２２が固定板７２、９２、１１１の背面全体を覆うように形成されているが、覆い部は必ずしも固定部の全体を覆っていることを要せず、少なくとも固定具を覆うように形成されていれば良い。
【図面の簡単な説明】
【図１】第１実施形態のサーミスタホルダの分解斜視図
【図２】サーミスタホルダの背面図
【図３】サーミスタホルダの側面図
【図４】サーミスタホルダの取り付け途中の様子を示す側断面図
【図５】サーミスタホルダを取り付け後の状態を示す側断面図
【図６】第２実施形態のサーミスタホルダの分解斜視図
【図７】サーミスタホルダの背面図
【図８】サーミスタホルダの側面図
【図９】サーミスタホルダの取り付け途中の様子を示す側断面図
【図１０】サーミスタホルダを取り付け後の状態を示す側断面図
【図１１】第３実施形態のサーミスタホルダの分解斜視図
【図１２】サーミスタホルダの背面図
【図１３】サーミスタホルダの側面図
【図１４】サーミスタホルダの取り付け途中の様子を示す側断面図
【図１５】押さえ部材を保持部材に組み付ける様子を示す部分断面図
【図１６】サーミスタホルダを取り付け後の状態を示す側断面図
【図１７】第４実施形態のサーミスタホルダの斜視図
【図１８】サーミスタホルダの背面図
【図１９】サーミスタホルダの取り付け途中の様子を示す側断面図
【図２０】サーミスタホルダを取り付け後の状態を示す側断面図
【図２１】第５実施形態のサーミスタホルダの背面図
【図２２】サーミスタホルダの取り付け途中の様子を示す側断面図−１
【図２３】サーミスタホルダの取り付け途中の様子を示す側断面図−２
【図２４】サーミスタホルダを取り付け後の状態を示す側断面図
【図２５】第６実施形態のサーミスタホルダの斜視図
【図２６】サーミスタホルダの背面図
【図２７】サーミスタホルダの取り付け途中の様子を示す側断面図−１
【図２８】サーミスタホルダの取り付け途中の様子を示す側断面図−２
【図２９】サーミスタホルダを取り付け後の状態を示す側断面図
【図３０】従来のサーミスタホルダを示す図
【符号の説明】
１…サーミスタ（センサ）２…検知部４…壁面（被測定物）１０、３０、５０…サーミスタホルダ（センサ取付具）１１、３１、５１、７１…保持部材１３、３３、５３、７３…保持凹部（保持部）１５、３５、５５、７５，９５…切り欠き部２１、４１、６１、８１、１０１…押さえ部材２３、４３、６３、８３，１０３…押さえ片７２、９２、１１１…固定板（固定部）８２、１０２、１２２…固着板（覆い部）８６、１０６…係合突起（係合部）１０７Ｂ…指掛け部１１２…係止部（係合部）[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a sensor attachment.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a refrigerator or a freezer, there is a refrigerator or a freezer in which a cooling chamber surrounded by the wall is indirectly cooled by cooling the wall. In such refrigerators and freezers, a thermistor that detects the temperature of the inner wall surface may be attached for the purpose of controlling the temperature inside the refrigerator or detecting the end of defrosting (Patent Document 1, Patent Document 1). 2).
A thermistor holder used for attaching the thermistor to the inner wall surface of the chamber is connected to the holding piece 205 having a holding recess 201 for holding the detection unit 203 of the thermistor 202, as shown in FIG. 30, for example. And a mounting piece 206. At the time of mounting, first, after the detecting portion 203 of the thermistor 202 is housed in the holding concave portion 201, the mounting piece 206 is screwed to the wall surface 204 to fix the thermistor 202 in contact with the wall surface 204 (Patent Literature) 3).
[0003]
[Patent Document 1]
Japanese Patent Publication No. 3-45306
[0004]
[Patent Document 2]
Japanese Utility Model Publication No. 48-9725
[0005]
[Patent Document 3]
Japanese Utility Model Publication No. Sho 60-79675
[0006]
[Problems to be solved by the invention]
By the way, in order to accurately detect the wall surface temperature, it is necessary that the detection unit 203 of the thermistor 202 is securely in contact with the wall surface 204. For this reason, in the conventional thermistor holder 200, the depth H of the holding recess 201 is formed so as to be smaller than the diameter D of the detecting portion 203 in the thermistor 202, and the detecting portion 203 is held in a state of protruding from the holding recess 201. Was to be.
However, since the holding recess 201 is shallow, the detection unit 203 is likely to come off from the holding recess 201 during alignment of the thermistor holder 200 with the mounting position in the work of mounting the thermistor 202 on the wall surface 204. There was a problem. For this reason, at the time of positioning, it is necessary to support the detection unit 203 with the hand on the opposite side of holding the thermistor holder 200 so as not to come off, which is inconvenient.
[0007]
Further, the conventional thermistor holder 200 is fixed by fixing one end of the mounting piece 206 to the wall surface 204 with a screw 207. However, the thermistor holder 200 is generally formed of resin, and contracts and expands due to a change in ambient temperature. For this reason, during use for a long period of time, the screw may be loosened due to the repetition of the contraction and expansion, and the thermistor may not be able to adhere to the wall surface 204. In particular, when used for fixing the thermistor for detecting the end of the defrosting operation, the problem is remarkable because the device is placed in an environment where the ambient temperature changes greatly due to its use.
[0008]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a sensor mounting tool that can prevent a sensor from falling off during mounting work and can surely make the sensor contact an object to be measured. It is in.
[0009]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, a sensor mounting tool according to the invention of claim 1 is a sensor mounting for mounting a sensor having a detection unit that makes contact with an object to be measured to a predetermined position on the object to be measured. A holding unit that is open on the side of the contact surface with the object to be measured and is capable of housing the detection unit therein, and a detection unit that is partially cut away from the holding unit and is housed in the holding unit. A holding member provided with a notch portion exposing a part of the holding member, and a holding member provided with a holding piece capable of entering the notch portion, wherein the holding member is housed in the holding portion. The presser piece can be displaced between a standby position where the presser piece does not interfere with the detector and a press-contact position where the presser piece enters the notch and presses the detector against the object to be measured. It is characterized by having.
[0010]
The invention according to claim 2 is the sensor attachment according to claim 1, wherein the pressing member is formed integrally with the holding member, and is rotatable between the standby position and the pressure contact position. It is characterized by having.
[0011]
The invention according to claim 3 is a sensor mounting tool for mounting a sensor provided with a detection unit that performs measurement by contacting the measured object, at a predetermined position on the measured object, and is fixed to the measured object. A fixing portion, a pressing member provided with a pressing portion which is superimposed on the fixing portion and presses the sensor against the object to be measured, and which is provided on one of the fixing portion and the pressing member and engages with the other. An engaging portion capable of holding the pressing member in a state of being superimposed on the fixing portion is provided.
[0012]
The invention according to claim 4 is the sensor mounting device according to claim 3, wherein the fixing portion is fixed to the object to be measured by a fixing device, and the holding member is overlapped with the fixing portion. And a cover for covering the fixing tool is provided.
[0013]
The invention according to claim 5 is the sensor mounting device according to any one of claims 1 to 4, wherein the holding member has a finger hook portion that can be displaced by hooking a finger when the holding member moves. It is characterized by being protruded.
[0014]
Function and effect of the present invention
According to the first aspect of the present invention, a pressing member provided with a pressing piece is attached to the sensor mounting tool, and the pressing member is configured such that the pressing piece does not interfere with the detecting unit housed in the holding unit. The holding portion is displaceable between a holding position and a pressing position at which the pressing piece enters the cutout portion of the holding member and presses the detecting portion against the object to be measured. According to such a configuration, during the mounting operation of the sensor, by setting the pressing member to the standby position, the detecting unit can be stored in the back of the holding unit and held so as not to easily come off. The sensor mounting tool can be held with one hand without attaching a hand to the detection unit. Therefore, the operator can perform the positioning operation while holding the sensor mounting tool with one hand and holding a screw, a mounting tool, and the like for fixing the sensor mounting tool in the other hand in advance. Thereby, workability is improved. On the other hand, after the sensor is attached, the temperature of the temperature can be accurately detected since the contact of the detection unit with the object can be ensured by using the pressing member as the pressing position.
[0015]
According to the second aspect of the present invention, the holding member is formed integrally with the holding member, and is rotatable between the standby position and the pressure contact position. According to such a configuration, it is possible to prevent the holding member from being dropped during mounting work or to be lost during storage, which is convenient for handling.
[0016]
According to the third aspect of the present invention, the pressing member is held at the pressed position by the engaging portion. According to such a configuration, since a screw or the like for holding the holding member at the press-contact position is not required, the screw does not loosen during use of the holder and the holding member does not come off the press-contact position. For this reason, the contact of the thermistor with the object to be measured can be ensured for a long time.
[0017]
According to the fourth aspect of the present invention, the cover member is provided with the cover portion that covers the fixing tool. According to such a configuration, when the holding member is at the pressure contact position, the fixing member is covered by the cover member, so that the fixing member can be prevented from loosening during use of the holder. Thereby, the contact of the thermistor with the object to be measured can be ensured for a long time.
[0018]
According to the invention of claim 5, the pressing member is provided with the finger hook portion. According to such a configuration, the displacement operation of the holding member becomes easy, and workability is improved.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
<First embodiment>
Hereinafter, a first embodiment of a sensor mounting device of the present invention will be described in detail with reference to FIGS. The thermistor holder 10 (corresponding to the sensor mounting of the present invention; hereinafter, abbreviated as “holder 10”) of the present embodiment is a thermistor 1 (corresponding to the sensor of the present invention) for detecting the temperature in the refrigerator. Is held in contact with the wall surface 4 (corresponding to the non-measurement object of the present invention) in the refrigerator. In the following description, the surface side (the lower surface side in FIG. 1) where the holder 10 contacts the wall surface 4 will be described as the contact surface side, and the side opposite to this contact surface side (the upper surface side in FIG. 1) will be described as the back side.
[0020]
In the present embodiment, the thermistor 1 mounted in the storage includes a detection unit 2 formed in a rod shape having a circular cross section, and a lead unit 3 pulled out from one end of the detection unit 2. The lead section 3 is connected to a control device (not shown) for controlling the internal temperature.
The holder 10 of the present embodiment is integrally formed of a resin material having elasticity, and includes a holding member 11 for holding the thermistor 1 and a pressing member 21 for pressing the thermistor 1 against the wall surface 4. (See FIGS. 1 to 3).
[0021]
The holding member 11 includes a fixing plate 12 formed in a rectangular plate shape and fixed to the wall surface 4, and a holding concave portion 13 (corresponding to a holding portion of the present invention) provided continuously with the fixing plate 12. . The fixing plate 12 is provided with two screw holes 16 for screwing the fixing plate 12 to the wall surface 4 at two places.
The holding recess 13 is formed in a U-shape that opens to the contact surface side by raising the edge of the fixing plate 12 to the rear side and further folding the tip thereof. The depth H of the holding recess 13 is made larger than the diameter of the detection unit 2, and when the detection unit 2 is pushed into the depth, a part thereof does not protrude from the opening 14. At the center of the holding recess 13 in the width direction, a wide cutout 15 is provided along the outer peripheral edge of the holding recess 13, and a part of the detection unit 2 accommodated in the holding recess 13 is exposed. It has become so.
[0022]
A holding member 21 is connected to the fixing plate 12 of the holding member 11. The holding member 21 is formed to have substantially the same shape as the fixing plate 12, and a fixing plate 22 connected to an edge of the fixing plate 12 facing the holding recess 13, and a pressing piece projecting from the fixing plate 22. 23 are formed in a convex shape. A hinge 25 is formed on the boundary between the fixed plate 12 and the fixed plate 22 by providing a V-shaped groove, whereby the holding member 21 is separated from the holding member 11 with respect to the holding member 11. It is rotatable between a standby position (FIG. 1) and a pressure contact position (FIG. 5) that is superimposed on the back surface of the holding member 11. Further, the fixing plate 22 has two screw holes 24 which are aligned with the screw holes 16 of the fixing plate 12 when the pressing member 21 is rotated to the pressure contact position.
The holding piece 23 is projected to a position matching the notch 15 when the holding member 21 is rotated to the pressure contact position, enters the notch 15 and moves the detection unit 2 from the back end side to the opening. It is pushed down to the 14th side.
[0023]
Next, the operation and effect of the present embodiment configured as described above will be described.
[0024]
When attaching the thermistor 1 to the wall surface 4 in the refrigerator, first, the detection unit 2 of the thermistor 1 is pushed into the holding recess 13 of the holder 10 to the rear end side and accommodated therein (see FIG. 1). At this time, the depth H of the holding recess 13 is made larger than the diameter of the detection unit 2, so that the detection unit 2 can be held without protruding from the opening 14. Thereby, even if an operator holds the holding member 11 with one hand without putting a hand on the detection unit 2, the detection unit 2 is not easily detached from the holding recess 13.
In this state, the holding member 11 is brought into contact with the wall surface 4 and aligned with the mounting position. At this time, the holding member 21 is at the standby position separated from the holding member 11 and does not interfere with the detection unit 2. In this state, as described above, the detection unit 2 is housed on the deep end side of the holding recess 13, and is not easily detached from the holding recess 13. Therefore, the operator can perform the positioning operation while holding the holder 10 with one hand and holding the mounting screw 6 and the mounting tool for fixing the holder 10 in the other hand in advance.
[0025]
When the positioning is completed, the holding member 21 is rotated in a direction overlapping with the back surface of the holding member 11. When the holding member 21 is rotated to a position where it reaches the upper end of the holding recess 13, the holding piece 23 enters the notch 15, and pushes down the detection unit 2 toward the opening 14 (see FIG. 4). Then, when the pressing member 21 is further rotated and reaches a pressure contact position overlapping the rear surface of the holding member 11, the detection unit 2 is pressed down to a position where it contacts the wall surface 4 by the pressing force of the pressing piece 23 (see FIG. 5). .
In this state, the two pairs of screw holes 16 and 24 of the fixing plate 12 and the fixing plate 22 and the screw hole 5 of the wall surface 4 are aligned with each other. Fix to the wall 4. In a state where the holder 10 is fixed, the pressing piece 23 of the pressing member 21 bends to the rear side by the interposition of the detecting unit 2 between the pressing unit 21 and the wall surface 4, and presses the detecting unit 2 against the wall surface 4 by elastic restoring force. . For this reason, the contact between the detection unit 2 and the wall surface 4 is maintained, and the wall surface temperature is accurately detected.
[0026]
As described above, according to the present embodiment, the holder 10 is provided with the holding member 21 provided with the holding piece 23, and the holding member 21 is provided with the detection unit 2 of the thermistor 1 housed in the holding recess 13. The pressing member 23 can be displaced between a standby position where the pressing member 23 does not interfere with the pressing member 23 and a pressing position where the pressing member 23 enters the cutout portion 15 of the holding member 11 and presses the detection unit 2 against the wall surface 4. Have been. According to such a configuration, while the thermistor 1 is being mounted, the pressing member 21 is set at the standby position, so that the detection unit 2 is stored in the deep end side of the holding recess 13 so as not to be easily removed. Therefore, the holder 10 can be held with one hand without putting a hand on the detection unit 2. Therefore, the operator can perform the positioning operation while holding the holder 10 with one hand and holding the mounting screw 6 and the mounting tool for fixing the holder 10 in the other hand in advance. Thereby, workability is improved. On the other hand, after the thermistor 1 is attached, the pressing member 21 is at the pressure contact position, and the contact of the detector 2 with the wall surface 4 can be ensured, so that the wall surface temperature can be accurately detected.
[0027]
Further, since the holding member 21 is formed integrally with the holding member 11, it is possible to avoid dropping the holding member 21 during the mounting operation or losing the holding member 21 during storage, which is convenient for handling.
[0028]
<Second embodiment>
Hereinafter, a second embodiment of the present invention will be described with reference to FIGS. The main difference between the holder 30 of the present embodiment and the first embodiment is that the holding member 41 is formed separately from the holding member 31. In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
[0029]
The holder 30 of the present embodiment includes a holding member 31 and a pressing member 41 as in the first embodiment (see FIGS. 6 to 8).
The holding member 31 is formed of a resin material, and includes a rectangular fixing plate 32 and a holding concave portion 33 connected to the fixing plate 32 as in the first embodiment. A projection 37 for connecting the pressing member 41 to the holding member 31 is provided upright at a central position on the back side of the fixing plate 32. The protrusion 37 is formed in a columnar shape, and a screw hole 38 for screwing a screw 47 for fixing the holding member 41 to the holding member is provided on the upper surface side.
The pressing member 41 is formed in a convex plate shape with an elastic resin material or the like, and includes a fixing plate 42 and a pressing piece 43 protruding from the fixing plate 42 as in the first embodiment. I have. At the center position of the fixing plate 42, a through hole 45 for passing a screw 47 is provided at a position matching the screw hole 38 of the protrusion 37 on the fixing plate 32.
[0030]
When attaching the thermistor 1 to the wall surface 4 in the storage, first, similarly to the first embodiment, the detection unit 2 of the thermistor 1 is pushed into the holding concave portion 33 of the holder 30 to the rear end side and accommodated therein.
Next, the holding member 41 is attached to the holding member 31. First, the pressing member 41 is assembled to the back side of the holding member 31 while the projection 37 of the holding member 31 is inserted into the through hole 45 of the pressing member 41. Then, the screw 47 is screwed into the screw hole 38 of the protrusion 37 via the washer 46 to lock the holding member 41 in a retaining state. At this time, the pressing member 41 is located between the standby position (FIG. 9), which is lifted up to the distal end position of the protrusion 37 (the position in contact with the washer 46), and the pressing position (FIG. 10), which is superimposed on the back surface of the holding member 31. Is displaceable. Note that, in the standby state, the pressing member 41 is located at a position where the pressing piece 43 is located above (in a direction away from the holding member 31) the detection unit 2 accommodated on the deep end side of the holding concave portion 33. Does not interfere with the detection unit 2.
[0031]
In this state, the holding member 31 is brought into contact with the wall surface 4 and is aligned with the mounting position. At this time, the positioning is performed while holding the pressing member 41 at the standby position. In this state, similarly to the first embodiment, the detection unit 2 is held at the deep end side of the holding recess 33 so that it does not easily come off the holding recess 33. Therefore, the operator can perform the positioning operation while holding the holder 30 with one hand and holding the mounting screw 6 and the mounting tool for fixing the holder 30 in the other hand in advance.
[0032]
When the positioning is completed, the pressing member 41 is pushed down to the holding member 31 side. Then, the pressing piece 43 enters the notch 35 and pushes down the detecting portion 2 to the opening edge side. Then, when the pressing member 41 reaches the pressure contact position where the pressing member 41 overlaps the back surface of the holding member 31, the detecting unit 2 is pressed down to a position where it contacts the wall surface 4 by the pressing force of the pressing piece 43 (see FIG. 10).
Next, the holder 30 is fixed to the wall surface 4 by screwing the mounting screws 6 into the two pairs of screw holes 36 and 44 of the fixing plate 32 and the fixing plate 42 and the screw hole 5 of the wall surface 4. In a state where the holder 30 is fixed, the pressing piece 43 of the pressing member 41 presses the detection unit 2 against the wall surface 4 by its elastic restoring force as in the first embodiment. For this reason, the contact between the detection unit 2 and the wall surface 4 is maintained, and the wall surface temperature is accurately detected.
[0033]
As described above, also in the present embodiment, the same operation and effect as in the first embodiment can be obtained. Further, since the holding member 31 and the pressing member 41 are formed separately, if one of them is damaged or the like, only the damaged one needs to be replaced, and the cost can be reduced.
[0034]
<Third embodiment>
Hereinafter, a third embodiment of the present invention will be described with reference to FIGS. The holder 50 of the present embodiment is different from the above embodiments in that the holding member 61 is formed separately from the holding member 51 and in the connection structure of the holding member 61 and the holding member 51. In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
[0035]
The holder 50 of the present embodiment includes a holding member 51 and a pressing member 61 as in the first embodiment (see FIGS. 11 to 13).
[0036]
As in the first embodiment, the holding member 51 is formed of a resin material, and includes a rectangular fixing plate 52 and a holding recess 53 connected to the fixing plate 52. A locking portion 57 for connecting the holding member 61 to the holding member 51 is provided at a central position on the back side of the fixing plate 52. The locking portion 57 is formed by a pair of plate-shaped locking pieces 58 extending upward from the rear surface of the fixed plate 52 and arranged in the width direction of the fixed plate 52. Hooks 59 projecting outward in the width direction of the fixed plate 52 are formed at the upper ends of the pair of locking pieces 58, respectively.
The pressing member 61 is formed in a convex plate shape using an elastic resin material or the like, and includes a fixing plate 62 and a pressing piece 63 protruding from the fixing plate 62 as in the first embodiment. I have. At a center position of the fixing plate 62, a locking hole 65 for passing the locking piece 58 is provided at a position aligned with the locking portion 57 of the fixing plate 52, and the holding member 61 is assembled to the holding member 51. At this time, the hook 59 of the locking piece 58 fits into the locking hole 65, so that the pressing member 61 is held in a retaining state.
[0037]
When attaching the thermistor 1 to the wall surface 4 in the storage, first, similarly to the first embodiment, the detection unit 2 of the thermistor 1 is pushed into the holding recess 53 of the holder 50 to the rear end side and accommodated therein.
[0038]
Next, the pressing member 61 is attached to the back side of the holding member 51 (FIG. 14). First, the hook portion 59 is inserted into the locking hole 65 while the pair of locking pieces 58 are bent inward each other (FIG. 15A). When the hook 59 has passed through the locking hole 65, the pair of locking pieces 58 is returned to the original position, and the hook 59 is hooked on the opening edge of the locking hole 65, thereby engaging the holding member 61 in a state in which the holding member 61 is prevented from coming off. Stop (FIG. 15B).
At this time, the pressing member 61 has a standby position (FIG. 14) that has risen to the distal end position of the locking portion 57 (a position where the hook portion 59 is hooked) and a pressing position (FIG. 16) that is superimposed on the back surface of the holding member 51. It can be displaced between. In the standby state, the pressing member 61 is at a position where the pressing piece 63 is located above (in a direction away from the holding member 51) the detecting unit 2 housed on the deep end side of the holding recess 53, and the pressing piece 63 Does not interfere with the detection unit 2.
[0039]
In this state, the holding member 51 is brought into contact with the wall surface 4 and aligned with the mounting position. At this time, the positioning is performed while holding the pressing member 61 at the standby position. In this state, the detection unit 2 is held on the deep end side of the holding recess 53 in the same manner as in the above embodiments, so that the detection unit 2 is not easily detached from the holding recess 53. Therefore, the operator can perform the positioning operation while holding the holder 50 with one hand and holding the mounting screw 6 and the mounting tool for fixing the holder 50 in the other hand in advance.
[0040]
When the positioning is completed, the pressing member 61 is pushed down to the holding member 51 side. Then, the pressing piece 63 enters the notch portion 55, and pushes down the detecting portion 2 to the opening edge side. Then, when the pressing member 61 reaches the pressure contact position where the pressing member 61 overlaps the back surface of the holding member 51, the detection unit 2 is pressed down to the position where it comes into contact with the wall surface 4 by the pressing force of the pressing piece 63 (see FIG. 16).
Next, the holder 50 is fixed to the wall surface 4 by screwing the mounting screws 6 into the two pairs of screw holes 56 and 64 of the fixing plate 52 and the fixing plate 62 and the screw hole 5 of the wall surface 4. In a state where the holder 50 is fixed, the pressing piece 63 of the pressing member 61 presses the detection unit 2 against the wall surface 4 by its elastic restoring force as in the above embodiments. For this reason, the contact between the detection unit 2 and the wall surface 4 is maintained, and the wall surface temperature is accurately detected.
[0041]
As described above, also in the present embodiment, it is possible to obtain the same functions and effects as those of the above embodiments.
[0042]
<Fourth embodiment>
Hereinafter, a fourth embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
[0043]
As in the first embodiment, the holder 70 of the present embodiment is integrally formed of an elastic resin material or the like, and includes a holding member 71 and a pressing member 81 (see FIGS. 17 and 18).
As in the first embodiment, the holding member 71 includes a rectangular fixing plate 72 (corresponding to a fixing portion of the present invention) and a holding concave portion 73 connected to the fixing plate 72. A notch 75 is provided in the concave portion 73. The fixing plate 72 is provided with two screw holes 76 for screwing the fixing plate 72 to the wall surface 4, and the mounting screws 7 (corresponding to the fixing device of the present invention) are screwed there. Thereby, the holder 70 is fixed to the wall surface 4.
As in the first embodiment, a convex pressing member 81 having a fixing plate 82 (corresponding to a cover of the present invention) and a pressing piece 83 is provided on a fixing plate 72 of the holding member 71, and a hinge 85 Are connected so as to be rotatable. The portion of the fixing plate 82 that is aligned with the screw hole 76 of the fixing plate 72 is slightly swelled on the rear side (the side opposite to the surface facing the fixing plate 92), so that the head of the mounting screw 7 A recess 84 capable of accommodating 7A is formed.
A pair of hemispherically formed engaging projections 86 (on the side edges 83A of the holding piece 83, that is, the edges facing the notch edge 75A when the holding piece 83 enters the notch 75, are provided. (Corresponding to the engaging portion of the present invention).
[0044]
When attaching the thermistor 1 to the wall surface 4 in the refrigerator, first, the detection unit 2 of the thermistor 1 is pushed into the holding concave portion 73 of the holder 70 to the far end side and accommodated in the same manner as in the first embodiment. In this state, the holding member 71 is brought into contact with the wall surface 4, is positioned at the mounting position, and is fixed by the mounting screw 7 (see FIG. 19). At this time, as in the first embodiment, since the detection unit 2 is housed on the deep end side of the holding recess 73 and is not easily detached from the holding recess 73, the operator holds the holder 70 with one hand. , And the positioning operation can be performed with the other hand holding the mounting screw 7 and the mounting tool for fixing the holder 70 in advance.
When the positioning is completed, the pressing member 81 is rotated in a direction overlapping with the back surface of the holding member 71. When the holding member 81 is rotated to a position where the holding member 81 reaches the holding recess 73, the engaging projection 86 gets over the notch edge 75 A of the holding recess 73, the holding piece 83 enters the notch 75, and the detection unit 2 is moved to the wall surface. Push down to the position where it touches 4. Then, the engaging protrusion 86 engages with the rear end surface of the holding concave portion 73, so that the pressing member 81 is held at the pressure contact position overlapping the rear surface of the holding member 71 (see FIG. 20).
[0045]
In this state, since the pressing piece 83 of the pressing member 81 presses the detection unit 2 against the wall surface 4, the contact between the detection unit 2 and the wall surface 4 is maintained, and the wall surface temperature is accurately detected.
Further, the fixing plate 82 of the holding member 81 is overlapped on the back surface of the fixing plate 72 of the holding member 71, and the mounting screw 7 is covered with the fixing plate 82 with its head 7 A housed in the recess 84. I have. For this reason, even if the holder 70 is used in an environment with a large temperature change and the contraction and expansion are repeated, loosening of the mounting screw 7 can be suppressed, and contact with the thermistor 1 on the wall surface 4 can be secured for a long time.
[0046]
<Fifth embodiment>
Hereinafter, a fifth embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
[0047]
As in the fourth embodiment, the holder 90 of the present embodiment is integrally formed of an elastic resin material or the like, and includes a holding member 91 and a pressing member 101 (see FIG. 21).
As in the fourth embodiment, the holding member 91 includes a rectangular fixing plate 92, and the holding portion 123 is connected to the fixing plate 92. The fixing plate 92 is provided with two screw holes 96 for screwing the fixing plate 92 to the wall surface 4, and the holder 90 is fixed to the wall surface 4 by screwing the mounting screws 7 there. It has become so.
The holding portion 123 is formed in an inverted L-shape by raising the edge of the fixed plate 92 to the rear side and bending the tip thereof toward the side opposite to the fixed plate 92 side. Accordingly, the holding portion 123 has a structure in which the front end surface side (the surface side facing the rising wall from the fixed plate 92) as well as the contact surface side is largely opened. A wide cutout 95 is provided at the center of the holding unit 123 in the width direction along the outer peripheral edge of the holding unit 123, and a part of the detection unit 2 accommodated in the holding unit 123 is located on the rear side. It is to be exposed to.
[0048]
As in the first embodiment, a convex pressing member 101 having a fixing plate 102 and a pressing piece 103 is rotatably connected to a fixing plate 92 of the holding member 91 via a hinge 105 in the same manner as in the first embodiment. ing. As in the fourth embodiment, the fixing plate 102 is formed with a recess 104 that can accommodate the head 7A of the mounting screw 7. Further, a pair of engaging projections 106 formed in a hemispherical shape as in the fourth embodiment are provided on both side edges 103A of the holding piece 103.
Further, the protruding end of the holding piece 103 is provided with a thermistor holding portion 107A extending toward the surface facing the holding member 91 and a finger hook 107B protruding along the projecting direction of the holding piece 103. Have been.
[0049]
When attaching the thermistor 1 to the wall surface 4 in the refrigerator, first, the holding member 91 is brought into contact with the wall surface 4, is positioned at the mounting position, and is fixed by the mounting screw 7 (see FIG. 22).
Next, while the detection unit 2 of the thermistor 1 is being addressed to the inner peripheral surface of the holding unit 123 of the holder 90, a finger is hooked on the finger hook 107B to rotate the holding member 101 in a direction overlapping with the back surface of the holding member 91 (FIG. 23). When the holding member 101 is rotated to the position where it reaches the holding member 91, the engaging projection 106 gets over the notch edge 95 A of the holding part 123, and the holding piece 103 enters the notch 95, and the detecting part 2 Push down to the position where it touches 4. Then, when the engagement protrusion 106 engages with the inner peripheral surface of the holding portion 123, the pressing member 101 is held at the pressure contact position where the pressing member 101 overlaps the back surface of the holding member 91 (see FIG. 24).
[0050]
At this time, the thermistor holding portion 107A closes the distal end side of the holding portion 123, and the thermistor 1 is housed in the housing space S formed by the thermistor holding portion 107A and the holding portion 123. Then, since the pressing piece 103 of the pressing member 101 presses the detection unit 2 against the wall surface 4, the contact property between the detection unit 2 and the wall surface 4 is maintained, and the wall surface temperature is accurately detected.
Further, similarly to the fourth embodiment, the fixing plate 102 of the pressing member 101 is overlapped on the back surface of the fixing plate 92 of the holding member 91, and the mounting screws 7 are covered by the fixing plate 102. For this reason, even if the holder 90 is used in an environment with a large temperature change and contraction and expansion are repeated, loosening of the mounting screw 7 can be suppressed, and contact with the thermistor 1 on the wall surface 4 can be ensured for a long time.
Further, since the pressing member 101 is provided with the finger hook 107B, the turning operation of the pressing member 101 becomes easy.
[0051]
In addition, the thermistor 1 is generally installed on the back side, for example, if the thermistor 1 is installed near the door in the refrigerator, it becomes a hindrance to taking in and out of stored items. Therefore, if the thermistor 1 is mounted on the wall 4 after the thermistor 1 is first mounted on the holder 10 as in the first embodiment, the lead portion of the thermistor 1 when the holder 10 is introduced into the interior of the refrigerator. 3 may be in the way, or the thermistor 1 may be pulled off by the lead portion 3 and fall off from the holder 10.
However, in the holder 90 of the present embodiment, the holding portion 123 is formed in an L-shape and is largely opened to the distal end side, and the opening surface is covered by rotating the holding member 101 to the pressure contact position. Therefore, the thermistor 1 may be attached to the holder 90 after fixing the holder 90 to the wall surface 4. Furthermore, when replacing the thermistor 1, the holding member 101 is rotated to separate it from the holding member 91, and the distal end side of the holding portion 123 is opened, from which the thermistor 1 can be removed. Therefore, it is not necessary to remove the holder 90 from the wall surface 4 each time, and the maintenance work becomes extremely easy. Furthermore, it is possible to prevent a situation where the holder 90 is once removed and then reattached, and the mounting position and the mounting direction are incorrect.
In addition, since the pressing member 101 is provided with the finger hook 107B, the finger may be hooked on the finger hook 107B to rotate the pressing member 101 in a direction away from the holding member 91. Thereby, the turning operation of the holding member 101 becomes easy.
[0052]
<Sixth embodiment>
Hereinafter, a sixth embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
[0053]
The holder 110 of the present embodiment is integrally formed of an elastic resin material and includes a fixing plate 111 fixed to the wall surface 4 and a holding member 121 for holding the thermistor 1 (FIG. 25). , FIG. 26).
The fixing plate 111 is formed in a rectangular shape by a resin material, and has a locking portion 112 (a locking portion of the present invention) for locking the holding member 121 to the fixing plate 111 at a central position on the back side. (Applicable). The locking portion 112 has a pair of plate-shaped locking pieces 113 extending upward from the rear surface of the fixed plate 111 and arranged in parallel in the width direction of the fixed plate 111. Hooks 114 projecting outward in the width direction of the fixing plate 111 are formed at the upper ends of the pair of locking pieces 113, respectively. Further, the fixing plate 111 is provided with two screw holes 115 for screwing the fixing plate 111 to the wall surface 4, and the holder 110 is attached to the wall surface 4 by screwing the mounting screws 7 there. It is fixed.
[0054]
The holding member 121 is connected to the fixing plate 111. The holding member 121 has a fixing plate 122 formed in substantially the same shape as the fixing plate 111 and connected to an edge of the fixing plate 111. A hinge 125 is formed on the boundary between the fixing plate 111 and the fixing plate 122 by providing a V-shaped groove, whereby the holding member 121 is separated from the fixing plate 111 with respect to the fixing plate 111. It is rotatable between a separation position (FIG. 27) and a lamination position (FIG. 29) that is superimposed on the back surface of the fixed plate 111.
At the center position of the fixing plate 122, a locking hole 126 for passing the locking piece 113 is provided at a position aligned with the locking portion 112 of the fixing plate 111, and the holding member 121 is rotated to the contact position. At this time, the hook 114 of the locking piece 113 fits into the locking hole 126, so that the holding member 121 is held in a retaining state. Further, the fixing plate 122 is formed with a concave portion 124 capable of accommodating the head 7A of the mounting screw 7 as in the fourth embodiment.
[0055]
A holding groove 123 is connected to an end of the fixing plate 122 facing the side connected to the fixing plate 111. The holding groove 123 raises the edge of the fixing plate 122 to the rear side, and further turns the tip thereof to extend to a length slightly protruding from the surface of the fixing plate 122 facing the fixing plate 111. It is formed in a J-shape that opens to the contact surface side. In the holding groove 123, the detection unit 2 is held in a state of slightly protruding to the contact surface side.
[0056]
When attaching the thermistor 1 to the wall surface 4 in the refrigerator, first, the fixing plate 111 is brought into contact with the wall surface 4, aligned with the mounting position, and fixed with the mounting screw 7 (see FIG. 27).
Next, the holding member 121 is rotated in a direction overlapping with the back surface of the fixing plate 111 while the detection unit 2 of the thermistor 1 is addressed to the inner peripheral surface of the holding groove 123 of the holder 110 (see FIG. 28). At this time, the hook portion 114 is caused to enter the locking hole 126 while the pair of locking pieces 113 are bent inward each other. When the holding member 121 is rotated until it reaches the stacking position overlapping the rear surface of the fixing plate 111, the hook 114 passes through the locking hole 126, and the pair of locking pieces 113 is returned to the original position. Since the hook 114 is hooked on the opening edge of the locking hole 126, the holding member 121 is held in close contact with the fixing plate 111, and at the same time, the detection section 2 of the thermistor 1 housed in the holding groove 123 contacts the wall surface 4. It is held in the state shown in FIG.
[0057]
At this time, the fixing plate 111 is overlaid on the back surface of the fixing plate 122 of the holding member 121, and the mounting screws 7 are covered by the fixing plate 122. For this reason, even if the thermistor holder 110 is used in an environment with a large temperature change and the contraction and expansion are repeated, the loosening of the mounting screw 7 can be suppressed, and the contact of the thermistor 1 with the wall surface 4 can be ensured for a long time.
[0058]
Further, the holding member 121 is rotatable between the separated position and the stacking position, and when in the separated position, the holding groove 123 is largely opened. Therefore, the thermistor 1 may be attached to the holder 110 after the holder 110 is fixed to the wall surface 4.
Further, when replacing the thermistor 1, the engaging piece 113 is bent inward to release the engagement of the hook portion 114 with the engaging hole 126, and the holding member 121 is rotated to the separated position. The thermistor 1 may be removed. Therefore, similarly to the fifth embodiment, it is not necessary to remove the holder 110 from the wall surface 4 each time, and maintenance work is extremely easy. Furthermore, it is possible to prevent a situation where the holder 110 is once removed and then re-attached, and the mounting position and the mounting direction are incorrect.
[0059]
The technical scope of the present invention is not limited by the above-described embodiments, and, for example, those described below are also included in the technical scope of the present invention. In addition, the technical scope of the present invention extends to an equivalent range.
(1) In each of the above embodiments, the present invention is applied to the thermistor holder holder for mounting the thermistor 1 to the wall surface 4 in the refrigerator. However, the configuration of the sensor mounting tool of the present invention is not limited to the thermistor holder, and is not limited to the thermistor holder. The present invention is widely applicable to a sensor for mounting a sensor having a detection unit that performs measurement by contacting a measurement object.
(2) In the first to third embodiments, the holding members 21, 41, and 61 are made of an elastic resin material. Any material can be used as long as the detection unit can be pressed against the wall surface by the elastic restoring force, and may be, for example, a rubber material.
(3) In the fourth to sixth embodiments, the fixing plates 82, 102, 122 are formed so as to cover the entire back surface of the fixing plates 72, 92, 111, but the covering part is not necessarily the entire fixing part. Does not need to be covered, and may be formed so as to cover at least the fixture.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a thermistor holder according to a first embodiment.
FIG. 2 is a rear view of the thermistor holder.
FIG. 3 is a side view of the thermistor holder.
FIG. 4 is a side sectional view showing a state in which the thermistor holder is being mounted.
FIG. 5 is a side sectional view showing a state after the thermistor holder is attached.
FIG. 6 is an exploded perspective view of the thermistor holder according to the second embodiment.
FIG. 7 is a rear view of the thermistor holder.
FIG. 8 is a side view of the thermistor holder.
FIG. 9 is a side sectional view showing a state in which the thermistor holder is being mounted.
FIG. 10 is a side sectional view showing a state after the thermistor holder is attached.
FIG. 11 is an exploded perspective view of a thermistor holder according to a third embodiment.
FIG. 12 is a rear view of the thermistor holder.
FIG. 13 is a side view of the thermistor holder.
FIG. 14 is a side sectional view showing a state in which the thermistor holder is being mounted.
FIG. 15 is a partial cross-sectional view showing a state where the holding member is assembled to the holding member.
FIG. 16 is a side sectional view showing a state after the thermistor holder is attached.
FIG. 17 is a perspective view of a thermistor holder according to a fourth embodiment.
FIG. 18 is a rear view of the thermistor holder.
FIG. 19 is a side sectional view showing a state in which the thermistor holder is being mounted.
FIG. 20 is a side sectional view showing a state after the thermistor holder is attached.
FIG. 21 is a rear view of the thermistor holder according to the fifth embodiment.
FIG. 22 is a side sectional view showing a state in which the thermistor holder is being mounted.
FIG. 23 is a side sectional view showing a state in which the thermistor holder is being mounted.
FIG. 24 is a side sectional view showing a state after the thermistor holder is attached.
FIG. 25 is a perspective view of a thermistor holder according to a sixth embodiment.
FIG. 26 is a rear view of the thermistor holder.
FIG. 27 is a side sectional view showing a state in which the thermistor holder is being mounted.
FIG. 28 is a side cross-sectional view showing a state where the thermistor holder is being mounted.
FIG. 29 is a side sectional view showing a state after the thermistor holder is attached.
FIG. 30 shows a conventional thermistor holder.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Thermistor (sensor) 2 ... Detection part 4 ... Wall surface (measurement object) 10, 30, 50 ... Thermistor holder (sensor mounting fixture) 11, 31, 51, 71 ... Holding member 13, 33, 53, 73 ... Holding Concave portions (holding portions) 15, 35, 55, 75, 95 ... Notch portions 21, 41, 61, 81, 101 ... Holding members 23, 43, 63, 83, 103 ... Holding pieces 72, 92, 111 ... Fixing plates (Fixed portion) 82, 102, 122: fixing plate (covering portion) 86, 106: engaging projection (engaging portion) 107B: finger hook portion 112: locking portion (engaging portion)

Claims

A sensor mounting tool for mounting a sensor having a detection unit that performs measurement by contacting the measured object at a predetermined position of the measured object,
A holding portion that is open on the contact surface side with the object to be measured and that can accommodate the detection portion therein, and a part of the holding portion is cut away to expose a part of the detection portion accommodated in the holding portion A holding member having a notch portion to be
A pressing member provided with a pressing piece that can enter the notch,
The holding member is at a standby position where the holding piece does not interfere with the detection section housed in the holding section, and the holding piece enters the cutout section and moves the detection section to the object to be measured. A sensor mounting fixture characterized in that it can be displaced between a pressure contact position where the sensor is pressed against the sensor.

3. The sensor fixture according to claim 1, wherein the holding member is formed integrally with the holding member and is rotatable between the standby position and the pressing position. 4. .

A sensor mounting tool for mounting a sensor having a detection unit that performs measurement by contacting the measured object at a predetermined position of the measured object,
A fixing portion fixed to the object to be measured,
A pressing member provided with a pressing portion which is superimposed on the fixing portion and presses the sensor against the object to be measured;
A sensor provided on one of the fixing portion and the pressing member and engaging with the other to hold the pressing member in a state of being superimposed on the fixing portion. Fixture.

The fixing part is fixed to the object to be measured by a fixing tool, and the pressing member is provided with a covering part that overlaps the fixing part and covers the fixing tool. 4. The sensor mounting according to 3.

The sensor attachment according to any one of claims 1 to 4, wherein the holding member is provided with a finger holding portion that can be displaced by hooking a finger when the holding member moves.