JP3580848B2

JP3580848B2 - Glass tube heater mounting device

Info

Publication number: JP3580848B2
Application number: JP05876394A
Authority: JP
Inventors: 清隆田平; 俊文中村
Original assignee: 松下冷機株式会社
Priority date: 1994-03-29
Filing date: 1994-03-29
Publication date: 2004-10-27
Anticipated expiration: 2019-10-27
Also published as: JPH07270039A

Description

【０００１】
【産業上の利用分野】
本発明は、冷却器に付着した霜を除去するガラス管ヒーターの取り付け装置に関する。
【０００２】
【従来の技術】
従来のこの種のガラス管ヒーターの取り付け装置としては、特開昭６２−２４８９８３号公報に示されるものが一般的であった。
【０００３】
以下、上記従来のガラス管ヒーターの取り付け装置を図５を参照しながら説明する。
【０００４】
図５において、１はフィンチューブ型の冷却器であり、冷蔵庫の貯蔵室の奥に取り付けられている。２は除霜用のガラス管ヒーターであり、冷却器１に沿って冷却器１の下方に配置され、両端に絶縁キャップ３を有し、両端面の中央部から図示しないリード線が出ている。
【０００５】
４は防滴カバーであり、冷却器１とガラス管ヒーター２との間に配置され、冷却器１から落下する露がガラス管ヒーター２にかかるのを防止する。防滴カバー４の中央部は傘形となっており、両端部はガラス管ヒーター２の全長寸法より少し長いところで下側へ折り曲げられ、さらに、天井部には絶縁キャップ３と略対向する位置にフランジバックさせた穴を備えている。５は露受け皿であり、ガラス管ヒーター２の下方に配置され中央の最深部に排水口５ａが形成されている。６は左右一対の柱状突起であり、露受け皿５の上面における絶縁キャップ３と略対向する位置で上方に突出して設けられている。
【０００６】
７は保持片であり、柱状突起６と嵌合しネジ８で柱状突起６に固定される嵌合部９と、絶縁キャップ３を挟んで保持する一対の円弧状部１０と、円弧状部１０の先に形成され防滴カバー４の穴を貫通する外側にアンカー形状となっている一対のツメ１１と、ツメ１１と円弧状部１０との間に形成され防滴カバー４を下から支えツメ１１と共働して防滴カバー４を保持するフランジ１２とを有する。１３は冷却器１の手前側に位置し貯蔵室の底を構成する貯蔵室底板である。
【０００７】
以上のように構成されたガラス管ヒーターの取り付け装置について、以下にガラス管ヒーターの取り付け手順を説明する。
【０００８】
まず、ガラス管ヒーター２の絶縁キャップ３の部分を、保持片７の一対の円弧状部１０の開口部より挿入すると、円弧状部１０間が、合成樹脂の弾力性により外側に開き、ガラス管ヒーター２の絶縁キャップ３の部分が円弧状部１０の間に入ると、弾力性によりもとの状態に戻り、ガラス管ヒーター２は保持片７の一対の円弧状部１０間に装着される。
【０００９】
次に、防滴カバー４の穴に保持片７の一対のツメ１１を挿入すると、ツメ１１間が、合成樹脂の弾力性により内側に閉じ、保持片７の一対のツメ１１が防滴カバー４の穴を通り抜け保持片７のフランジ１２が防滴カバー４の下面に当接すると、ツメ１１間が弾力性によりもとの状態に戻り、防滴カバー４は保持片７のツメ１１とフランジ１２とにより保持される。
【００１０】
最後に、露受け皿５の柱状突起６に、保持片７の嵌合部９を挿入して嵌合させ、ネジ８で柱状突起６に嵌合部９を固定する。これにより、ガラス管ヒーター２と保持片７と防滴カバー４の一体物が露受け皿５に取り付けられる。
【００１１】
次に、冷却器１のガラス管ヒーター２による除霜について説明する。
冷却器１に霜が付いた状態で、ガラス管ヒーター２に通電すると、ガラス管ヒーター２が発熱し、この熱で冷却器１の霜が解け、露となって露受け皿５の上面に向かって落下し、一部は防滴カバー４の上面に落下したのち露受け皿５の上面に落下する。そして、露受け皿５の上面に落下した露は中央の最深部に集まり排水口５ａから図示しない配水管を通って庫外に排出される。
【００１２】
【発明が解決しようとする課題】
しかしながら、上記従来のガラス管ヒーターの取り付け装置では、貯蔵室底板１３の奥側端と冷却器１との隙間と、冷却器１と防滴カバー４との間隔とがそれぞれ狭く設定されており、ガラス管ヒーター２が故障して交換するときは、まず、冷却器１を持ち上げて、作業道具具を突っ込み、保持片７を露受け皿５の柱状突起６に固定しているネジ８を外して、ガラス管ヒーター２と保持片７と防滴カバー４の一体物をまず露受け皿５から取り外し、次に、貯蔵室の底板１３の奥面と冷却器１との間に、ガラス管ヒーター２と保持片７と防滴カバー４の一体物を取り出せる隙間ができるように冷却器１を持ち上げて、取り出さなければならなかった。
【００１３】
そのため、作業時に作業者の手または作業道具により、冷却器１のフィンが変形したり、冷却器１のフィンの角で作業者が手を切ったり、冷却器１を無理に持ち上げたときに冷却器１に接続された配管が変形し冷却性能に悪影響を与える可能性があった。
【００１４】
本発明は、上記課題に鑑み、ガラス管ヒーターを交換するときに、作業者や、冷却器等に支障をおこさないガラス管ヒーターの取り付け装置を提供することを目的としている。
【００１５】
【課題を解決するための手段】
上記目的を達成するために、本発明のガラス管ヒーターの取り付け装置は、冷却器と、前記冷却器の下方に配置され両端に絶縁キャップを有したガラス管ヒーターと、前記冷却器と前記ガラス管ヒーターとの間に配置される防滴カバーと、前記ガラス管ヒーターの下方に配置された露受け皿と、前記露受け皿の上面における前記絶縁キャップと略対向する位置で上方に突出して設けられた左右一対の柱状突起と、前記柱状突起と嵌合する嵌合部と前記嵌合部の上部手前側に形成された略水平面からなる係止部と前記絶縁キャップを保持する円弧状部と前記防滴カバーを保持するカバー保持部とを有する一対の保持片と、下端が前記露受け皿の上面における前記柱状突起の手前側に固定され上端に前記係止部に上から当接するツメが形成され前記ツメが前記係止部に上から当接する位置から前記ツメが前記係止部の上方から外れる位置まで上端が手前方向に変位可能に構成された係止突起と、奥側端の前記ガラス管ヒーターに近接する部分に前記冷却器との間隔を広くした段差部を形成した貯蔵室底板とからなり、前記段差部は前記段差部によって広くなった前記貯蔵室底板の奥側端と前記冷却器との隙間から前記係止突起の前記ツメを前記係止部から外す作業と前記ガラス管ヒーター、保持片、防滴カバーが一体となったものを取り出す作業ができる大きさを有し、前記冷却器と前記防滴カバーとの間隔は前記冷却器を移動させることなく前記ガラス管ヒーター、保持片、防滴カバーが一体となったものを前記柱状突起から引き抜くことができる間隔を有するのである。
【００１６】
【作用】
本発明のガラス管ヒーターの取り付け装置は、従来のネジの代わりに、柱状突起の手前側に手前方向に変位可能に設けた係止突起のツメで、保持片が柱状突起から抜けるのを防止したので、従来のネジの場合に較べて保持片の柱状突起への取り付け取り外しの作業が容易にできる。
【００１７】
また、貯蔵室底板の奥側端のガラス管ヒーターに近接する部分に冷却器との間隔を広くした段差部を形成し、この段差部を、この段差部によって広くなった貯蔵室底板の奥側端と冷却器との隙間から、冷却器を移動させることなく、係止突起のツメを係止部から外す作業と、ガラス管ヒーター、保持片、防滴カバーが一体となったものを取り出す作業ができる大きさにし、冷却器と防滴カバーとの間隔を、冷却器を移動させることなく、ガラス管ヒーター、保持片、防滴カバーが一体となったものを柱状突起から引き抜くことができる間隔にしたので、ガラス管ヒーターの交換作業時に冷却器を上に移動させる必要がなくなる。
【００１８】
そのため、作業者の手または作業道具により、冷却器のフィンが変形したり、冷却器のフィンの角で作業者が手を切ったり、冷却器を無理に持ち上げたときに冷却器に接続された配管が変形するようなことはなくなる。
【００１９】
【実施例】
以下、本発明の一実施例のガラス管ヒーターの取り付け装置を図１から図４を参照しながら説明するが、従来と同一構成については同一符号を付してその詳細な説明は省略する。
【００２０】
図において、防滴カバー４の中央部４ａは傘形となっており、両端部４ｂはガラス管ヒーター２の全長寸法より少し長いところで下側へ折り曲げられ、さらに、天井部には絶縁キャップ３と略対向する位置にフランジバックさせた穴４ｃを備えている。１４は露受け皿であり、ガラス管ヒーター２の下方に配置され中央の最深部に排水口１４ａが形成されている。１５は左右一対の柱状突起であり、露受け皿１４の上面における絶縁キャップ３と略対向する位置で上方に突出して設けられている。
【００２１】
１６は保持片であり、柱状突起１５と嵌合する嵌合部１７と、嵌合部１７の上部手前側に形成された略水平面からなる係止部１８と、絶縁キャップ３を挟んで保持する一対の円弧状部１９と、円弧状部１９の先に形成され防滴カバー４の穴４ｃを貫通する外側にアンカー形状となっている一対のツメ２０と、ツメ２０と円弧状部１９との間に形成され防滴カバー４を下から支えツメ２０と共働して防滴カバー４を保持するフランジ２１とを有する。本実施例では、ツメ２０とフランジ２１とでカバー保持部を構成している。
【００２２】
２２は係止突起であり、下端が露受け皿１４の上面における柱状突起１５の手前側に固定され上端に係止部１８に上から当接するツメ２３が形成される。また、係止突起２２はツメ２３が係止部１８に上から当接する位置からツメ２３が係止部１８の上方から外れる位置まで上端が手前方向に変位できるように、横断面がガラス管ヒーター２の延伸する左右方向に長い略長方形になっており、手前側の面には係止突起２２の手前方向への変位を制限するリブ２４が形成されている。
【００２３】
２５は冷却器１の手前側に位置し貯蔵室の底を構成する貯蔵室底板であり、奥側端のガラス管ヒーター２に近接する部分に冷却器１との間隔を広くした段差部２６を形成している。この段差部２６は、段差部２６によって広くなった貯蔵室底板２５の奥側端と冷却器１との隙間から係止突起２２のツメ２３を係止部１８から外す作業と、ガラス管ヒーター２、保持片１６、防滴カバー４が一体となったものを取り出す作業ができる大きさになっている。
【００２４】
また、冷却器１と防滴カバー４との間隔Ｗは冷却器１を移動させることなくガラス管ヒーター２、保持片１６、防滴カバー４が一体となったものを柱状突起１５から引き抜くことができる間隔になっている。
【００２５】
以上のように構成されたガラス管ヒーターの取り付け装置について、以下にガラス管ヒーターの取り付け手順を説明する。
【００２６】
まず、ガラス管ヒーター２の絶縁キャップ３の部分を、保持片１６の一対の円弧状部１９の開口部より挿入すると、円弧状部１９間が、合成樹脂の弾力性により外側に開き、ガラス管ヒーター２の絶縁キャップ３の部分が円弧状部１９の間に入ると、弾力性によりもとの状態に戻り、ガラス管ヒーター２は保持片１６の一対の円弧状部１９間に装着される。
【００２７】
次に、防滴カバー４の穴４ｃに保持片１６の一対のツメ２０を挿入すると、ツメ２０間が、合成樹脂の弾力性により内側に閉じ、保持片１６の一対のツメ２０が防滴カバー４の穴４ｃを通り抜け保持片１６のフランジ２１が防滴カバー４の下面に当接すると、ツメ２０間が弾力性によりもとの状態に戻り、防滴カバー４は保持片１６のツメ２０とフランジ２１とにより保持される。
【００２８】
最後に、係止突起２２を手で手前方向への変位させた状態で、露受け皿１４の柱状突起１５に、保持片１６の嵌合部１７を挿入して嵌合させ、係止部１８にツメ２３を引っかける。れにより、ガラス管ヒーター２と保持片１６と防滴カバー４の一体物が露受け皿１４に取り付けられる。
【００２９】
次に、故障したガラス管ヒーター２を取り外すときは、段差部２６によって広くなった貯蔵室底板２５の奥側端と冷却器１との隙間に手を突っ込み、係止突起２２を手前に傾けて係止突起２２のツメ２３を係止部１８の掛かり代から外し、保持片１６を持ってガラス管ヒーター２、保持片１６、防滴カバー４が一体となったものを持ち上げ、柱状突起１５から保持片１６の嵌合部１７を引き抜き、ガラス管ヒーター２、保持片１６、防滴カバー４が一体となったものを、段差部２６によって広くなった貯蔵室底板２５の奥側端と冷却器１との隙間から取り出す。
【００３０】
なお、交換用のガラス管ヒーター２を取り付けるときは、取り外すときの逆の手順で行う。
【００３１】
以上のように本実施例のガラス管ヒーターの取り付け装置は、従来のネジの代わりに、柱状突起１５の手前側に手前方向に変位可能に設けた係止突起２２のツメ２３で、保持片１６が柱状突起１５から抜けるのを防止したので、従来のネジの場合に較べて保持片１６の柱状突起１５への取り付け取り外しの作業が容易にできる。
【００３２】
また、貯蔵室底板２５の奥側端のガラス管ヒーター２に近接する部分に冷却器１との間隔を広くした段差部２６を形成し、この段差部２６を、この段差部２６によって広くなった貯蔵室底板２５の奥側端と冷却器１との隙間から、冷却器１を移動させることなく、係止突起２２のツメ２３を係止部１８から外す作業と、ガラス管ヒーター２、保持片１６、防滴カバー４が一体となったものを取り出す作業ができる大きさにし、冷却器１と防滴カバー４との間隔を、冷却器１を移動させることなく、ガラス管ヒーター２、保持片１６、防滴カバー４が一体となったものを柱状突起１５から引き抜くことができる間隔にしたので、ガラス管ヒーター２の交換作業時に冷却器１を上に移動させる必要がなくなる。
【００３３】
そのため、作業者の手または作業道具により、冷却器１のフィンが変形したり、冷却器１のフィンの角で作業者が手を切ったり、冷却器１を無理に持ち上げたときに冷却器１に接続された配管が変形するようなことはなくなる。
【００３４】
【発明の効果】
以上のように本発明のガラス管ヒーターの取り付け装置は、従来のネジの代わりに、柱状突起の手前側に手前方向に変位可能に設けた係止突起のツメで、保持片が柱状突起から抜けるのを防止したので、従来のネジの場合に較べて保持片の柱状突起への取り付け取り外しの作業が容易にできる。
【００３５】
また、貯蔵室底板の奥側端のガラス管ヒーターに近接する部分に冷却器との間隔を広くした段差部を形成し、この段差部を、この段差部によって広くなった貯蔵室底板の奥側端と冷却器との隙間から、冷却器を移動させることなく、係止突起のツメを係止部から外す作業と、ガラス管ヒーター、保持片、防滴カバーが一体となったものを取り出す作業ができる大きさにし、冷却器と防滴カバーとの間隔を、冷却器を移動させることなく、ガラス管ヒーター、保持片、防滴カバーが一体となったものを柱状突起から引き抜くことができる間隔にしたので、ガラス管ヒーターの交換作業時に冷却器を上に移動させる必要がなくなる。
【００３６】
そのため、作業者の手または作業道具により、冷却器のフィンが変形したり、冷却器のフィンの角で作業者が手を切ったり、冷却器を無理に持ち上げたときに冷却器に接続された配管が変形するようなことはなくなる。
【図面の簡単な説明】
【図１】本発明の一実施例のガラス管ヒーターの取り付け装置の概略正面図
【図２】同実施例のガラス管ヒーターの取り付け装置の要部縦面図
【図３】同実施例のガラス管ヒーターの取り付け装置の要部上面図
【図４】同実施例のガラス管ヒーターの取り付け装置の要部分解斜視図
【図５】従来のガラス管ヒーターの取り付け装置の要部縦面図
【符号の説明】
１冷却器
２ガラス管ヒーター
３絶縁キャップ
４防滴カバー
１４露受け皿
１５柱状突起
１６保持片
１７嵌合部
１８係止部
１９円弧状部
２０ツメ
２１フランジ
２２係止突起
２３ツメ
２５貯蔵室底板
２６段差部
Ｗ間隔[0001]
[Industrial applications]
The present invention relates to a glass tube heater mounting device for removing frost attached to a cooler.
[0002]
[Prior art]
As a conventional apparatus for mounting a glass tube heater of this type, the apparatus disclosed in Japanese Patent Application Laid-Open No. 62-248983 has been generally used.
[0003]
Hereinafter, the conventional apparatus for mounting a glass tube heater will be described with reference to FIG.
[0004]
In FIG. 5, reference numeral 1 denotes a fin tube type cooler, which is attached to the back of a storage room of a refrigerator. Reference numeral 2 denotes a glass tube heater for defrosting, which is arranged along the cooler 1 and below the cooler 1, has insulating caps 3 at both ends, and leads (not shown) come out from the center of both end surfaces. .
[0005]
Reference numeral 4 denotes a drip-proof cover, which is disposed between the cooler 1 and the glass tube heater 2, and prevents the dew falling from the cooler 1 from being applied to the glass tube heater 2. The center portion of the drip-proof cover 4 is umbrella-shaped, and both end portions are bent downward at a position slightly longer than the entire length of the glass tube heater 2. It has a hole with flange back. Reference numeral 5 denotes a dew receiving tray, which is disposed below the glass tube heater 2 and has a drain port 5a formed at the deepest portion at the center. Reference numeral 6 denotes a pair of left and right columnar projections, which are provided on the upper surface of the exposure tray 5 so as to protrude upward at positions substantially facing the insulating cap 3.
[0006]
Reference numeral 7 denotes a holding piece, which is a fitting portion 9 fitted to the columnar projection 6 and fixed to the columnar projection 6 with a screw 8, a pair of arc-shaped portions 10 holding the insulating cap 3 therebetween, and an arc-shaped portion 10 And a pair of claws 11 formed at the tip of the drip-proof cover 4 and having an anchor shape on the outside penetrating the hole of the drip-proof cover 4, and formed between the claw 11 and the arc-shaped portion 10 to support the drip-proof cover 4 from below. And a flange 12 for holding the drip-proof cover 4 in cooperation with the flange 11. Reference numeral 13 denotes a storage room bottom plate which is located on the front side of the cooler 1 and forms the bottom of the storage room.
[0007]
With respect to the apparatus for mounting a glass tube heater configured as described above, a procedure for mounting the glass tube heater will be described below.
[0008]
First, when the insulating cap 3 of the glass tube heater 2 is inserted through the opening of the pair of arc-shaped portions 10 of the holding piece 7, the space between the arc-shaped portions 10 opens outward due to the elasticity of the synthetic resin, When the portion of the insulating cap 3 of the heater 2 enters between the arcuate portions 10, it returns to its original state due to elasticity, and the glass tube heater 2 is mounted between the pair of arcuate portions 10 of the holding piece 7.
[0009]
Next, when the pair of claws 11 of the holding piece 7 are inserted into the holes of the drip-proof cover 4, the space between the claws 11 is closed inward due to the elasticity of the synthetic resin, and the pair of claw 11 of the holding piece 7 is moved to the drip-proof cover 4. When the flange 12 of the holding piece 7 comes into contact with the lower surface of the drip-proof cover 4 through the hole, the space between the claws 11 returns to the original state due to elasticity, and the drip-proof cover 4 is separated from the claw 11 of the holding piece 7 by the flange 12. And held by.
[0010]
Finally, the fitting portion 9 of the holding piece 7 is inserted and fitted into the columnar projection 6 of the exposure tray 5, and the fitting portion 9 is fixed to the columnar projection 6 with the screw 8. Thereby, the integrated body of the glass tube heater 2, the holding piece 7 and the drip-proof cover 4 is attached to the dew receiving tray 5.
[0011]
Next, defrosting by the glass tube heater 2 of the cooler 1 will be described.
When the glass tube heater 2 is energized in a state where the chiller 1 is frosted, the glass tube heater 2 generates heat. With this heat, the frost of the cooler 1 is thawed and dewed to the upper surface of the dew tray 5. After falling, a part falls on the upper surface of the drip-proof cover 4 and then falls on the upper surface of the dew receiving tray 5. Then, the dew falling on the upper surface of the dew receiving tray 5 is collected at the deepest portion in the center, and is discharged from the drainage port 5a to the outside of the refrigerator through a water distribution pipe (not shown).
[0012]
[Problems to be solved by the invention]
However, in the above-described conventional glass tube heater mounting device, the gap between the back end of the storage room bottom plate 13 and the cooler 1 and the distance between the cooler 1 and the drip-proof cover 4 are set to be small. When replacing the glass tube heater 2 due to failure, first, the cooler 1 is lifted, the working tool is inserted, and the screw 8 fixing the holding piece 7 to the columnar projection 6 of the exposure tray 5 is removed. The glass tube heater 2, the holding piece 7, and the drip-proof cover 4 are integrally removed from the exposure tray 5, and then the glass tube heater 2 is held between the back surface of the bottom plate 13 of the storage room and the cooler 1. The cooler 1 must be lifted and removed so that there is a gap for taking out the one piece of the piece 7 and the drip-proof cover 4.
[0013]
Therefore, the fins of the cooler 1 are deformed by the worker's hands or working tools at the time of work, the worker cuts hands at the corners of the fins of the cooler 1, or cools when the cooler 1 is forcibly lifted. There was a possibility that the piping connected to the vessel 1 was deformed and had an adverse effect on the cooling performance.
[0014]
The present invention has been made in view of the above circumstances, and has as its object to provide an apparatus for mounting a glass tube heater that does not hinder an operator or a cooler when replacing the glass tube heater.
[0015]
[Means for Solving the Problems]
In order to achieve the above object, an apparatus for mounting a glass tube heater according to the present invention includes a cooler, a glass tube heater disposed below the cooler and having insulating caps at both ends, the cooler and the glass tube. A drip-proof cover disposed between the heater, a dew receiving tray disposed below the glass tube heater, and left and right protrudingly provided at a position substantially opposite to the insulating cap on the upper surface of the dew receiving pan. A pair of columnar protrusions, a fitting portion to be fitted to the columnar protrusion, a locking portion formed on a near upper side of the fitting portion and comprising a substantially horizontal plane, an arc-shaped portion holding the insulating cap, and the drip-proof A pair of holding pieces having a cover holding portion for holding the cover, and a claw formed at a lower end thereof, which is fixed to a front side of the columnar protrusion on the upper surface of the exposure tray, and which is in contact with the locking portion from above at an upper end. A locking projection configured such that an upper end thereof can be displaced in a forward direction from a position where the claw abuts on the locking portion from above to a position where the claw comes off from above the locking portion; and a glass tube heater at a rear end. And a storage room bottom plate formed with a stepped portion having an increased interval with the cooler in a portion close to the storage device, and the stepped portion is a rear end of the storage room bottom plate enlarged by the stepped portion and the cooler. The size of the cooler is such that the work of removing the claws of the locking projection from the locking portion from the gap and the work of taking out the integrated glass tube heater, holding piece, and drip-proof cover can be performed. The distance between the glass tube heater, the holding piece, and the drip-proof cover can be pulled out from the columnar projection without moving the cooler.
[0016]
[Action]
The mounting device for a glass tube heater according to the present invention, in place of the conventional screw, is provided with a locking projection provided on the front side of the columnar projection so as to be displaceable in the frontward direction, thereby preventing the holding piece from coming off the columnar projection. Therefore, the operation of attaching and detaching the holding piece to and from the columnar projection can be performed more easily than in the case of the conventional screw.
[0017]
In addition, a stepped portion with an increased distance from the cooler is formed at a portion near the glass tube heater at the back end of the bottom plate of the storage room, and the stepped portion is widened by the stepped portion at the back side of the bottom plate of the storage room. Work to remove the hook of the locking projection from the locking part without moving the cooler from the gap between the end and the cooler, and work to remove the integrated glass tube heater, holding piece and drip-proof cover The space between the cooler and the drip-proof cover can be pulled out of the columnar projection without moving the cooler, and the glass tube heater, holding piece, and drip-proof cover can be integrated. This eliminates the need to move the cooler up when replacing the glass tube heater.
[0018]
Therefore, the fins of the cooler were deformed by the worker's hands or working tools, the worker cut their hands at the corners of the fins of the cooler, or were connected to the cooler when the cooler was forcibly lifted. The piping will not be deformed.
[0019]
【Example】
Hereinafter, an apparatus for mounting a glass tube heater according to one embodiment of the present invention will be described with reference to FIGS. 1 to 4. However, the same reference numerals are given to the same components as those in the related art, and detailed description thereof will be omitted.
[0020]
In the drawing, a central portion 4a of the drip-proof cover 4 has an umbrella shape, and both end portions 4b are bent downward at a position slightly longer than the entire length of the glass tube heater 2. Further, an insulating cap 3 is provided on a ceiling portion. A hole 4c which is flanged back is provided at a substantially opposing position. Reference numeral 14 denotes a dew tray, which is disposed below the glass tube heater 2 and has a drain port 14a formed at the deepest portion at the center. Reference numeral 15 denotes a pair of left and right columnar projections, which are provided on the upper surface of the exposure tray 14 so as to protrude upward at positions substantially facing the insulating cap 3.
[0021]
Reference numeral 16 denotes a holding piece, which holds the fitting portion 17 to be fitted to the columnar projection 15, a locking portion 18 formed on the upper front side of the fitting portion 17 and formed of a substantially horizontal surface, and the insulating cap 3. A pair of arc-shaped portions 19, a pair of claws 20 formed at the tip of the arc-shaped portions 19 and having an anchor shape on the outside penetrating the hole 4 c of the drip-proof cover 4, and the claw 20 and the arc-shaped portions 19. A flange 21 is formed between the flanges 21 to support the drip-proof cover 4 from below and cooperate with the claw 20 to hold the drip-proof cover 4. In this embodiment, the claws 20 and the flange 21 constitute a cover holding portion.
[0022]
Reference numeral 22 denotes a locking projection, the lower end of which is fixed to the front side of the columnar projection 15 on the upper surface of the exposure tray 14, and a claw 23 which is in contact with the locking portion 18 from above is formed at the upper end. The locking projection 22 has a glass tube heater so that the upper end thereof can be displaced in the forward direction from a position where the claw 23 contacts the locking portion 18 from above to a position where the claw 23 comes off from above the locking portion 18. 2 is a substantially rectangular shape that extends in the left-right direction and has a rib 24 that limits the displacement of the locking projection 22 in the front direction on the front surface.
[0023]
Reference numeral 25 denotes a storage room bottom plate which is located on the front side of the cooler 1 and constitutes the bottom of the storage room. A stepped portion 26 having a large space with the cooler 1 is provided at a portion close to the glass tube heater 2 at the back end. Has formed. The stepped portion 26 is used to remove the claw 23 of the locking projection 22 from the locking portion 18 from the gap between the deeper end of the storage room bottom plate 25 and the cooler 1 widened by the stepped portion 26, and to remove the glass tube heater 2. , The holding piece 16 and the drip-proof cover 4 are of such a size that they can be taken out.
[0024]
The distance W between the cooler 1 and the drip-proof cover 4 is such that the glass tube heater 2, the holding piece 16 and the drip-proof cover 4 can be pulled out of the columnar projection 15 without moving the cooler 1. It is at an interval that can be done.
[0025]
With respect to the apparatus for mounting a glass tube heater configured as described above, a procedure for mounting the glass tube heater will be described below.
[0026]
First, when the portion of the insulating cap 3 of the glass tube heater 2 is inserted through the opening of the pair of arc portions 19 of the holding piece 16, the space between the arc portions 19 opens outward due to the elasticity of the synthetic resin, and the glass tube is opened. When the portion of the insulating cap 3 of the heater 2 enters between the arc-shaped portions 19, the glass tube heater 2 returns to its original state due to elasticity, and is mounted between the pair of arc-shaped portions 19 of the holding piece 16.
[0027]
Next, when the pair of claws 20 of the holding piece 16 is inserted into the hole 4c of the drip-proof cover 4, the space between the claws 20 is closed inward due to the elasticity of the synthetic resin, and the pair of claw 20 of the holding piece 16 is moved to the drip-proof cover. When the flange 21 of the holding piece 16 comes into contact with the lower surface of the drip-proof cover 4 through the hole 4c of the holding member 4, the space between the claws 20 returns to the original state due to elasticity. It is held by the flange 21.
[0028]
Finally, in a state where the locking projection 22 is displaced in the forward direction by hand, the fitting portion 17 of the holding piece 16 is inserted and fitted into the columnar projection 15 of the exposure tray 14, and Hook the claw 23. Thereby, the integrated body of the glass tube heater 2, the holding piece 16 and the drip-proof cover 4 is attached to the dew tray 14.
[0029]
Next, when the failed glass tube heater 2 is to be removed, the hand is inserted into the gap between the rear end of the storage room bottom plate 25 widened by the step 26 and the cooler 1, and the locking projection 22 is tilted forward. The hook 23 of the locking projection 22 is removed from the allowance of the locking portion 18, and the holding piece 16 is lifted up with the glass tube heater 2, the holding piece 16, and the drip-proof cover 4, and the columnar projection 15 is removed. The fitting part 17 of the holding piece 16 is pulled out, and the glass tube heater 2, the holding piece 16, and the drip-proof cover 4 are integrated, and the rear end of the storage room bottom plate 25 widened by the step 26 and the cooler Take out from the gap with 1.
[0030]
When the replacement glass tube heater 2 is attached, the procedure is the reverse of the removal procedure.
[0031]
As described above, the mounting device of the glass tube heater according to the present embodiment uses the claw 23 of the locking protrusion 22 provided displaceably in the front direction on the front side of the columnar protrusion 15 instead of the conventional screw, and the holding piece 16. Is prevented from coming off from the columnar projection 15, so that the work of attaching and detaching the holding piece 16 to and from the columnar projection 15 can be performed more easily than in the case of a conventional screw.
[0032]
In addition, a step 26 having an increased distance from the cooler 1 is formed in a portion near the glass tube heater 2 at the far end of the bottom plate 25 of the storage room, and the step 26 is widened by the step 26. The operation of removing the claw 23 of the locking projection 22 from the locking portion 18 without moving the cooler 1 from the gap between the rear end of the storage room bottom plate 25 and the cooler 1, the glass tube heater 2, the holding piece 16. The size of the drip-proof cover 4 is made large enough to take out the integrated work, and the distance between the cooler 1 and the drip-proof cover 4 is set without moving the cooler 1, the glass tube heater 2, the holding piece 16. Since the interval in which the integrated drip-proof cover 4 can be pulled out from the columnar projection 15 is set, there is no need to move the cooler 1 upward when replacing the glass tube heater 2.
[0033]
Therefore, when the fins of the cooler 1 are deformed by the worker's hand or a working tool, or when the worker cuts a hand at the corner of the fin of the cooler 1 or forcibly lifts the cooler 1, There is no such thing as deformation of the pipe connected to.
[0034]
【The invention's effect】
As described above, in the glass tube heater mounting device of the present invention, instead of the conventional screw, the retaining piece is disengaged from the columnar projection by the locking projection claw provided so as to be displaceable in the forward direction on the near side of the columnar projection. Therefore, the work of attaching and detaching the holding piece to and from the columnar protrusion can be easily performed as compared with the case of the conventional screw.
[0035]
In addition, a stepped portion with an increased distance from the cooler is formed at a portion near the glass tube heater at the back end of the bottom plate of the storage room, and the stepped portion is widened by the stepped portion at the back side of the bottom plate of the storage room. Work to remove the hook of the locking projection from the locking part without moving the cooler from the gap between the end and the cooler, and work to remove the integrated glass tube heater, holding piece and drip-proof cover The space between the cooler and the drip-proof cover can be pulled out of the columnar projection without moving the cooler, and the glass tube heater, holding piece, and drip-proof cover can be integrated. This eliminates the need to move the cooler up when replacing the glass tube heater.
[0036]
Therefore, the fins of the cooler were deformed by the worker's hands or working tools, the worker cut their hands at the corners of the fins of the cooler, or were connected to the cooler when the cooler was forcibly lifted. The piping will not be deformed.
[Brief description of the drawings]
FIG. 1 is a schematic front view of an apparatus for mounting a glass tube heater according to an embodiment of the present invention. FIG. 2 is a vertical view of a main part of an apparatus for mounting a glass tube heater according to the embodiment. Top view of main part of tube heater mounting device [Fig. 4] Exploded perspective view of main part of glass tube heater mounting device of the embodiment [Fig. 5] Main part vertical view of conventional glass tube heater mounting device [symbol] Description]
REFERENCE SIGNS LIST 1 Cooler 2 Glass tube heater 3 Insulating cap 4 Drip-proof cover 14 Exposure tray 15 Column-shaped protrusion 16 Holding piece 17 Fitting portion 18 Locking portion 19 Arc-shaped portion 20 Claw 21 Flange 22 Locking protrusion 23 Claw 25 Storage room bottom plate 26 Step part W interval

Claims

A cooler, a glass tube heater disposed below the cooler and having insulating caps at both ends, a drip-proof cover disposed between the cooler and the glass tube heater, and below the glass tube heater. A pair of left and right columnar protrusions provided to protrude upward at a position substantially opposite to the insulating cap on the upper surface of the dew tray, a fitting portion fitted with the columnar protrusion, and the fitting A pair of holding pieces having a locking part formed of a substantially horizontal surface formed on the upper front side of the joining part, an arc-shaped part holding the insulating cap, and a cover holding part holding the drip-proof cover, A claw that is fixed to the front side of the columnar projection on the upper surface of the dew receiving tray and that is in contact with the locking portion from above is formed at the upper end, and the claw contacts the locking portion from above. Above A storage projection bottom plate having a locking projection whose upper end is configured to be displaceable in the forward direction to a position where it is displaced, and a stepped portion formed at a portion near the glass tube heater at a rear end where a gap with the cooler is widened. The step of removing the claw of the locking projection from the locking portion from a gap between the deeper end of the storage chamber bottom plate and the cooler, which is widened by the step, and the glass tube Heater, holding piece, drip-proof cover has a size that can be taken out of the integrated work, the gap between the cooler and the drip-proof cover the glass tube heater without moving the cooler, An apparatus for mounting a glass tube heater having an interval capable of pulling out an integrated holding piece and drip-proof cover from the columnar projection.