1301882 (1) 九、發明說明 【發明所屬之技術領域】 本發明是關於一種冰箱的門扉閉鎖裝置，尤其是，關 於一種可靜肅地關閉冰箱門扉，而且可避免半開狀態的門 扉閉鎖裝置。 【先前技術】 # 在近年來食生活有所變化，由將每天的食用材勤勉地 在鄰接的食品商店購買而經烹飪的食生活，變化成在郊外 型大型超市等例如集一週分量地購買食品，而儲藏於冰箱 成爲一般化。又，對應於增加了冷凍食品的利用，在家庭 上也一般地普及超過400公升容量的大型冰箱。 然而，隨著冰箱的大型化而門扉也成爲大型化，而與 門扉本體一起被收納於門扉的食品量也增加，因此在關閉 門扉之際，而發生門扉相撞於冰箱本體之際發生很大的相 _撞聲音。 又，在冰箱關閉門扉之際若關閉方法上不充分，則會 成爲半開狀態。如此，在冰箱的門扉閉鎖裝置中，作爲防 止半開狀態的習知技術。提案一種揭示於專利文獻1的技 術。依照該專利文獻1，記載著使用馬達，在關閉門扉之 際，門扉關閉構件引入設於門扉的受動部來關閉門扉的構 牟，而以所需最小限的動作確實地關閉門扉的情形。 專利文獻1:日本特開2004— 3774號公報 1301882BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sill lock device for a refrigerator, and more particularly to a sill lock device that can quietly close a door sill of a refrigerator and avoid a half-open state. [Prior Art] # In recent years, there has been a change in the food life. The daily consumption of foodstuffs is purchased in a neighboring food store and the food life is cooked, and it is changed into a large-scale supermarket in the suburbs, for example, to purchase food for one week. And storage in the refrigerator becomes general. Further, in response to the increase in the use of frozen foods, large refrigerators having a capacity of more than 400 liters are generally popularized in the home. However, as the size of the refrigerator has increased, the threshold has also increased, and the amount of food stored in the threshold along with the door body has also increased. Therefore, when the threshold is closed, the threshold occurs when the threshold collides with the refrigerator body. The phase _ hit the sound. Also, if the closing method is insufficient when the door is closed by the refrigerator, it will be in a half-open state. Thus, in the sill lock device of the refrigerator, it is a conventional technique for preventing the half-open state. A technique disclosed in Patent Document 1 is proposed. According to Patent Document 1, it is described that when a door is closed, the sill closing member introduces a receiving portion provided on the sill to close the sill, and the sill is reliably closed with a minimum required movement. Patent Document 1: Japanese Patent Laid-Open No. 2004-3774 1301882
第2圖是表示第一實施形態的門扉關閉位置的冰箱門 - 扉閉鎖裝置的立體圖。 ^ 第3圖是表示第一實施形態的門扉開放位置的冰箱門 扉閉鎖裝置的立體圖。 第4圖是表示第一實施形態的門扉關閉位置的冰箱門 扉閉鎖裝置的動作態樣的說明圖。 第5圖是表示第一實施形態的門扉開放位置的冰箱門 ® 扉閉鎖裝置的動作態樣的說明圖。 第6圖是表示作用於第一實施形態的冰箱門扉閉鎖裝 置的旋轉力矩中立位置的動作態樣的說明圖。 第7圖是表示作用於第一實施形態的冰箱門扉閉鎖裝 置的旋轉力矩中立位置近旁的動作態樣的說明圖。 第8圖是表示第一實施形態的門扉開放位置的冰箱門 扉閉鎖裝置的俯視圖。 在第1圖中，1是冰箱的本體框體，冷藏室2的門扉 • 2R，2L是左右分開的所謂從中向左右分開的兩扇門方式 的門扉，以蓋體所覆蓋的旋轉支點3作爲中心進行開閉的 構成。冷藏室2下側是成爲朝前方拉出式的蔬菜室施 以適於儲藏蔬菜的溫度設定。在蔬菜室下部左側有製冰室 5，藉由未圖示的製冰手段來進行製冰而被蓄積在製冰室 內。當製冰室內的冰被取出，則藉由未圖示的冰量檢測手 段來檢測冰量減少的情形，而自動地進行製冰並補充製冰 室內的冰的構成。製冰室右側是例如成爲功能選擇室6。 藉由使用者的選擇，可選擇冷卻器，冷藏室或接近於水溫 -8- (6) 1301882 的冷激室的任一溫度設定。又，在最下段配置冷凍室7, 、 可收容冷凍食品等。此些各門扉是旋轉在旋轉支點周圍而 開放，或是朝前方大約平行地拉出而可開放的構成，使用 者可取出食品或補充食品。 冷藏室2，蔬菜室4，製冰室5，功能選擇室6，冷卻 器7的各室門扉與框體接觸的周圍整體全面設置爲了防止 各室內的冷氣洩漏至外部的封閉構件。該封閉構件是被固 φ 定在門扉側，一般使用面狀磁鐵內封於內部的磁鐵封閉。 門扉被閉鎖時，磁鐵被吸附在構成框體的鐵板，就對於框 體1全面均勻地接觸，而得到封閉性。 詳細如下述，在冰箱1的上面，設有與設於門扉2的 銷23嵌合（抵接）或離開（脫離），而在閉鎖門扉之際 引入鎖來閉鎖門扉2的門扉閉鎖手段1 0 ;尤其是構成在閉 鎖門扉之際藉由衰減手段70能使減速力作用於銷23。所 以在閉鎖門扉2之際，門扉是被減速，而在設於門扉2的 • 封閉構件接觸於本體1之際，門扉2是成爲低速之故，因 而不會發生相撞聲音變成靜肅，又不會產生衝擊力，避免 被保管於門扉內部的食品或飲料互相碰觸受損而適用。 以下，使用第2圖至第8圖說明上述的門扉閉鎖手段 10的構成例。第2圖與第3圖是表示拆下覆蓋設於框體上 部的門扉閉鎖手段1 〇的蓋體的狀態的門扉閉鎖裝置的構 成的立體圖；第4圖至第8圖是表示俯視圖。以下，詳述 閉鎖右側門扉2R的右側門扉閉鎖手段1 0R，惟對於左側 門扉閉鎖手段1 〇L，僅作成左右對稱的形狀之處不相同， -9 - (7) 1301882 而構成或動作是相同。 ， 在第2圖至第5圖中’門扉2R是轉動自如地被支持 ^ 於具備於框體1端部的旋轉支點3周圍’而成爲可開閉的 構成。在門扉閉鎖手段1 0，具備被載置於底座構件8而旋 轉自如地被軸支於旋轉支點1 1周圍並往復轉動開放位置 與關閉位置之間的旋轉板12;在該旋轉板12，設有與被 固定於門扉2R的托架22的引入銷23抵接或脫離的成爲 # 朝外部開放的開口部的凹部24 ;又，在旋轉板12設有彈 簧銷13，而拉力彈簧15掛設在與設在與設在底座構件8 的固定銷1 4之間。 在被固定於門扉2R的托架22設有引入銷23，在某 一定門扉的打開角度0，該引入銷23是設置成對於設在 旋轉板12的凹部24，可從該一端開口部進入或脫離的位 置關係（參照第6圖）。引入銷23是隨著門扉2R及旋轉 板12的開閉而經凹部24的一端開口部侵入至凹部24內 ® 部，相反地經開口部而從凹部24脫落的構成。在凹部24 ，位於凹部24的周邊部，且抵接於引入銷23的一邊中， 將接近於門扉2的一側稱爲外側邊25，而將距門扉較遠的 一側稱爲內側邊26。針對於具有引入銷23與外側邊25及 內側邊2 6的凹部24之間的動作，其詳細是如下述。 第2圖（立體圖）與第4圖（俯視圖）是表示門扉 2R位在關閉的關閉位置的狀態，旋轉板12是成爲旋轉於 以箭號CCW所表示的反時鐘周圍的關閉狀態。設於門扉 2R的銷23是被嵌合於設在旋轉板12的凹部24;銷23是 -10- (8) 1301882 抵接於凹部24的外側邊25而朝關閉方向彈簧門扉2R。 . 具備於底座板8的引入位置止動件2 8與開放位置止動件 27是規制旋轉板的開放位置（參照第8圖）與引入位置（ 參照第4圖）的旋轉角度範圍的止動件，該高度是具備僅 與旋轉板1 2可抵接的高度。 在關閉門扉2R而使得銷23抵接於旋轉板12的凹部 24的狀態，旋轉板1 2是並不與引入位置止動件>8抵接， # 有間隙的狀態。彈簧1 5的一端是被掛設在設於旋轉板1 2 的彈簧鈎13，而彈簧的另一端是被掛設在設於框體的固定 彈簧鈎14，以所定拉力F1進行掛設（參照第4圖）。 在此，彈簧15是將一端被支持在設於旋轉板12的彈 簧鈎13，而將另一端被支持於設在框體1的固定彈簧鈎 14，在旋轉板12的開放位置與關閉位置之間，連結彈簧 15兩端的直線作成從旋轉板12的旋轉支點π的一方移動 至另一方側的位置關係之故，因而可將旋轉板12保持在 ^ 開放位置或關閉位置的構成；換言之，藉由彈簧15使得 旋轉板1 2構成進行肘節動作。 旋轉衰減手段70是將負荷阻力給予旋轉板的旋轉的 阻力附加手段，在本實施形態的場合，朝C W方向旋轉時 作用衰減力，而朝CCW方向旋轉時未作用衰減力而空轉 的成爲一方向衰減動作的構成。該一方向動作是在關閉門 扉之際作用著衰減力’而在開放門扉之際成爲未作用衰減 力而成爲空轉的動作。作爲該旋轉衰減手段70 ,採用公知 的一方向可衰減動作的手段就可以。 11 - (9) 1301882 在旋轉板12的一部分設置扇狀齒輪72 ’而在旋轉衰 _ 減手段7 〇也設置齒輪7 1，嚙合此些齒輪，作成旋轉板1 2 進行旋轉也使旋轉衰減手段7 0進行旋轉’又構成將設於 旋轉板12的一部分的齒輪72的齒數作成比設於旋轉衰減 手段70的齒輪71的齒數還大。將該齒數的比率作成1 : N ( N>1 )，旋轉衰減手段7〇是比旋轉板12以N倍高速 進行旋轉之故’因而旋轉衰減手段70是其衰減力胃適用 # 成爲1/N的小型者。 又，在關閉門扉2R之際，旋轉板12從引入銷23接 受的力量是成爲旋轉板12的旋轉支點11所接受’在旋轉 衰減手段70成爲僅傳至旋轉力之故，因而在旋轉衰減手 段70的軸不必具有所需以上的強度，可使用低成本簡單 的旋轉衰減手段70 ’而適用於低成本化。 又，如下所述，桿3 0是在開放門扉2R的狀態下旋轉 板12誤朝關閉方向旋轉時’用以將旋轉板12復原成開放 β位置的桿。 第4圖至第8圖是詳細地圖示門扉的開閉動作之際的 旋轉板12與引入銷23的位置關係的俯視圖，如先前所說 明地，第4圖是表示旋轉板12朝CCW方向旋轉，而在銷 23施加力量P1 (彈簧15所造成的肘節動作）進行閉鎖門 扉2R的狀態。在第5圖中，表示將門扉2R朝CCW方向 進行旋轉逐漸開放的狀態。銷23是與門扉2R —起朝P2 方向移動之故，因而銷23是與設於旋轉板12的凹部24 的外側邊25抵接而將旋轉板12朝CCW方向向旋轉。在 -12- (10) 1301882 第6圖中，門扉2R是關至開放至角度0之狀態，彈簧15 • 是位於旋轉板1 2的旋轉支點1 1的正上方。在該位置下， . 彈簧15所造成的拉力F1是不會產生旋轉板12的旋轉支 點周圍的力矩，因此朝開放方向或是關閉方向都不會旋轉 ，而位於中立位置的中性點。如此地，彈簧1 5的彈性構 件，是設成拉力成爲最大的位置存在於閉銷門扉2R的閉 鎖位置及凹部24的承受部與引入銷23脫離的開放位置之 •間。 當比該中性點更開放門扉2R，則旋轉板1 2是朝CW 側旋轉，使得彈簧1 5跨越旋轉支點1 1，將CW方向的旋 轉力矩給予旋轉板，旋轉板是朝CW方向旋轉，如第7圖 所示地，銷23與凹部24接觸爲由外側邊25移動至內側 邊26。旋轉板12是其一部分與開放位置止動件27抵接而 停止而在開放門扉2R的期間是在該位置上待機。將該門 扉開放的狀態表示於第8圖。 ® 以下，說明閉鎖門扉2R之際的動作。在關閉之際， 如第8圖所示地，將門扉2R從開放狀態，依第7圖’第 6圖，第5圖，第4圖的順序地，使用者朝箭號CW方向 旋轉門扉2R而進行關閉門扉的動作，惟極緩慢地關閉門 扉的情形，與急遽地關閉門扉的情形上動作有所不同’因 此針對於各動作進行說明。 首先，極緩慢地關閉門扉的情形’此爲門扉到達完全 地關閉的狀態之前會停止’而成爲所謂半開狀態之虞的狀 態。如第7圖所示地，銷23是接觸於凹部24的內側邊26 -13- (11) 1301882 ，而開始將旋轉板1 2朝箭號CCW方向旋轉。這時候，配 - 置構成成爲銷23與凹部24的外側邊25未接觸，且僅銷 , 23與內側邊26是旋轉板12待機在確定地接觸的位置。 當更閉鎖門扉2R，則成爲第5圖的狀態，使得彈簧 1 5跨越旋轉板1 2的旋轉支點11的位置，旋轉板1 2是產 生圖示箭號CCW方向的旋轉力矩而朝CCW方向旋轉，使 得凹部24的外側邊25與銷23接觸。這時候，旋轉板12 • 是藉由彈簧15產生箭號CCW方向的力矩，而經銷23在 門扉施加箭號P1方向的力量，此爲關閉門扉2R的方向， 因此門扉2R是繼續進行關閉動作，最後，成爲如第4圖 所示的關閉門扉2R的狀態（不會成爲半開狀態）。在這 時候的開關動作之際，施加有來自旋轉衰減手段70的衰 減力之故，因而門扉是緩慢地關閉，磁鐵封閉接觸於本體 框體1之際的速度是低速，而閉鎖時所產生的聲音較少， 可靜肅地關閉。 ® 以下，說明急遽地關閉門扉2R的情形。門扉2R急遽 地關閉時，在從第7圖至第5圖爲止的期間，藉由旋轉衰 減手段所發生的衰減力，門扉2R雖被減速，惟在第5圖 的時點還充分保持充分速度，銷23是以比利用彈簧1 5所 產生的旋轉板12的CCW方向的旋轉所致的凹部24的引 入速度還大速度朝關閉方向繼續移動。所以，銷23是將 凹部24的內側邊26朝P1方向繼續推壓，而旋轉板12是 一面被銷23推壓一面朝CCW方向旋轉。該期間，旋轉衰 減手段70所造成的衰減力是繼續施加，因此銷23是繼續 -14- (12) 1301882 接受P2方向的力量（所謂反作用力）而減速。藉由將旋 - 轉衰減手段70所產生的旋轉衰減力適當地設定，門扉2R . 到達表示於第4圖的關閉位置的以前可充分地減速（適當 地選定設計急激地關閉門扉的力量與旋轉衰減力），因此 可將門扉2R接觸於本體之際的速度作成低速，可減少閉 鎖時所產生的聲音，而靜肅地可關閉。 又，在使用者急遽地關閉門扉2R時，銷23是急遽地 ® 碰到凹部24的內側邊26，因此產生衝擊聲音。作爲防止 此種衝擊聲音的手段，在凹部24的內側邊26，黏貼如橡 膠板等的緩衝材料，就可避免發生上述的衝擊聲音，開放 門扉之際，若附加旋轉衰減力，則對於使用者可增大門扉 的開放力量，因此由操作性方面並不期望。所以，旋轉衰 減力是僅門扉關閉之際才動作，而在開放門扉之際空轉的 一方向動作的旋轉衰減手段較理想。 ®第二實施形態 在第9圖至第12圖表示本發明的第二實施形態的冰 箱門扉閉鎖裝置。 第9圖是表示本發明的第二實施形態的冰箱門扉閉鎖 裝置的斷面構成的圖式。 第1 〇圖是表示第二實施形態的冰箱門扉閉鎖裝置的 旋轉板支點周圍的基本構成的斷面圖。 第1 1圖是表示第二實施形態的冰箱門扉閉鎖裝置的 彈簧與旋轉板的配置構成的立體圖。 -15- (13) 1301882 第1 2圖是表示第二實施形態的冰箱門扉閉鎖裝置的 - 彈簧與旋轉板的配置構成的斷面圖。 本發明的冰箱門扉閉鎖裝置是被安裝於冰箱上面，因 此設計成門扉閉鎖裝置的薄型化，可盼望儘量減低冰箱的 全高度。如此，在本發明的第二實施形態的冰箱門扉閉鎖 裝置，使用第9圖至第12圖說明實現該薄型化的構成。 在第9圖中，彈簧1 5是在門扉開閉動作之期間橫跨 # 著旋轉板12的旋轉支點11，因此彈簧15是不會與旋轉板 12及旋轉支點11交叉地，必須安裝於旋轉板12的上方。 又，銷23是進出於凹部，因此銷23與凹部24是須配置 成在門扉開閉的動作範圍的全域中，不會與彈簧1 5干涉 在滿足此些條件下，爲了將門扉閉鎖手段1〇配置成 薄型，在彈簧15與旋轉衰減手段70的配置構造中，橫排 地配置成兩者不會互相地上下重疊的狀態較有效。換言之 •，旋轉衰減手段70是本來就其配置上並不被受到限制者 ，作爲一例，可與旋轉支點11同軸狀地重疊配置，惟並 不如此地配置（採用使得設於旋轉板12周圍的齒輪部72 與設於旋轉衰減手段70的齒輪71能嚙合的構成），如第 9圖所示地，將旋轉衰減手段70與彈簧1 5橫排地配置， 就能薄型地構成門扉閉鎖裝置1 0。 第10圖是表示第9圖的構成的彈簧15的長度方向的 斷面圖；彈簧15的盤管部分隔著間隙Gap配設在旋轉板 12。在該配設中，將來自彈簧15的拉力作爲F，則彈簧 -16- (14) 1301882 銷1 3的彈簧1 5的力點高度是成爲Η 1，而施加於旋轉板 - 12的CCW方向的旋轉扭矩τ是成爲T = FxHl。藉由該旋 、 轉扭矩，旋轉板1 2是如圖示虛線所示地有變形成1 2’的位 置的虞。 如此，一面參照第11圖與第12圖一面說明防止該旋 轉板的變形的構成例。第1 1圖及第1 2圖的構成例與第1 0 圖的構成例不同處，是構成延長彈簧1 5的鈎部，而彈簧 # 15的盤管部分不會與旋轉板12重疊。 如第11圖及第12圖所示地，構成將鈎部長度L作成 比設於旋轉板12的齒輪部72的齒冠圓還大而使彈簧15 的盤管部不會與齒輪部72接觸。作成該構成，重疊於旋 轉板12上方向是僅成爲彈簧15的鈎部15a，因此可將鈎 住彈簧鈎（銷）13的彈簧15的位置高度設成極接近於旋 轉板1 2的上面。 因此，可將彈簧15的力點高度作成H2 ( <H1 )。這 • 時候施加於旋轉板12的CCW方向的旋轉扭矩Τ’是成 T’ = FxH2 ( <FxHl )，因此可抑制如第1 0圖的虛線所示的 旋轉板1 2的變形。 第三實施形態 在第1 3圖表示本發明的第三實施形態的冰箱門扉閉 鎖裝置的斷面構成。第三實施形態是表示防止彈簧拉力所 造成的旋轉板的變形的其他構成例。 在第13圖中，12’是位於彈簧15上方的第二旋轉板， -17- (15) 1301882 與旋轉板12相連接，成爲一體而旋轉的構成。上面底座 - 8·是藉由連接構件19與底座構件8相連接，而第二旋轉支 點1 I1是設在上面底座，與旋轉支點1 1同軸地配置，並與 鵪 設於第二旋轉板的穴嵌合而設成轉動自如的狀態。 作成此種構成，旋轉板12，12’與旋轉支點1 1，1 1’配 置在彈簧15的上下，而可將彈簧15所造成的力量從彈簧 1 5的上下加以支持，因此可防止表示於第1 0圖的旋轉板 # 12，12,變形成虛線的狀態。 第四實施形態 在第14圖至第16圖，表示本發明的第四實施形態的 冰箱門扉閉鎖裝置。 第1 4圖是表示本發明的第四實施形態的冰箱門扉閉 鎖裝置的旋轉板復原用桿的俯視圖。 第1 5圖是表示第四實施形態的冰箱門扉閉鎖裝置的 ® 旋轉板復原用桿與蓋體的位置關係的立體圖。 第1 6圖是表示第四實施形態的冰箱門扉閉鎖裝置的 旋轉板復原用桿與蓋體的其他位置關係的立體圖。 在本發明的第一至第三實施形態中，如第8圖所示地 ，開放門扉時，旋轉板12是被保持在開放位置，而在關 閉門扉時，保持著銷23可進入凹部24的內部的位置關係 。但是，例如使用各誤觸到旋轉板1 2，或是接觸到物品使 得旋轉板1 2旋轉，則藉由彈簧1 5的拉力被引入而如第1 4 圖所示地僅旋轉板1 2被轉動至引入位置的情形。旋轉板 -18- (16) 1301882 1 2是抵接於引入止動件28而成爲停止的狀態。在該狀態 - 下，即使關閉門扉2R，銷23是也無法進入至凹部24內 . 部，產生無法關閉門扉2R的狀態。 如此，延長旋轉板12的一部分而設置旋轉板復原用 桿3 0，如第1 4圖所示地，該旋轉板復原用桿3 0是作成在 旋轉板1 2轉動至引入位置時使用者可操作地朝前方側突 出，使得使用者朝圖示A方向添加力量的構成。雖門扉 • 2R位在開放位置，旋轉板復原用桿30位於如第14圖所 示的引入位置時是異常事態，惟爲了使用者容易知道該旋 轉板復原用桿30位於異常位置的情形，若將旋轉板復原 用桿的前端部作成顯眼顏色等較有效。 若使用者朝圖示A方向添加力量，將旋轉板12朝圖 示CW方向轉動一直到抵接於開放位置止動件27，旋轉一 直到表示於第8圖的開放位置而可復原成開放狀態。彈簧 15是在轉動動作之期間會跨越旋轉板12的旋轉支點11的 # 位置，而旋轉板12是可保持表示於第8圖的開放位置， 因此之後在關閉門扉之際，可進行第7圖一直到第4圖的 閉鎖動作。尤其是，藉由將旋轉板復原用桿30與旋轉板 12設置成一體，而不會增加零件數，因此低價格化上有效 〇 在具備此種構成的冰箱中，將有關於覆蓋門扉閉鎖裝 置10的蓋體31與旋轉板復原用桿30的位置關係的一例 表示於第15圖與第16圖。爲了容易看到，門扉2r是未 予圖示。門扉閉鎖裝置用蓋體31是在前面具備用以轉動 -19- (17) 1301882 旋轉板復原用桿30的開縫32，而在上面設有轉動銷23的 - 開縫。第1 5圖是表示旋轉板1 2位於引入位置的情形，有 門扉正常地關閉的情形，或是如第1 4圖所示地僅旋轉板 狐 12誤轉動至引入位置的情形。 在第1 5圖中，旋轉板復原用桿3 0是由蓋體3 1的表 面突出，朝圖示A方向以手指頭施加力量於旋轉板復原用 桿30的前端而可將旋轉板12從引入位置轉動至開放位置 φ 。在此，以虛線所示的旋轉板復原用桿30前端的軌跡30a 是轉動至開放位置之同時，減少來自蓋體31的表面的凸 量，而在開放位置上旋轉板復原用桿30是構成比蓋體31 的表面還引入的位置。在此，旋轉板復原用桿30的前端 部引入之前，與表示於第6圖同樣地彈簧15跨越旋轉支 點11的位置，作成旋轉至CW方向的扭矩產生在旋轉板 12的位置的構成。之後，藉由彈簧15所產生的CW方向 的扭矩，旋轉板12是旋轉至抵接於開放位置止動件27成 •爲待機狀態。 作成此種構成，即使在開放門扉2R的狀態下旋轉板 12誤移動至引入位置時，以手指頭指壓旋轉板復原用桿 3〇而可將旋轉板12轉動至開放位置；因此可正常地閉鎖 門扉2R。一方面，開放門扉時，若旋轉板12在正規位置 的開放位置時，旋轉板復原用桿30是位在比蓋體31的表 面還引入的位置，而使用者無法將旋轉板12從開放位置 移動至引入位置，因此藉由不會有惡作劇或誤操作使得旋 轉板1 2移動至引入位置而無法關閉的情形。 -20- (18) 1301882 - 第五實施形態 , 在第17圖至第20圖，表示本發明的第五實施形態的 冰箱門扉閉鎖裝置。 第1 7圖是表示本發明的第五實施形態的冰箱門扉閉 鎖裝置而適用於拉出式門扉的構成例的圖式（門扉關閉位 置）。 • 第1 8圖是表示本發明的第五實施形態的冰箱門扉閉 鎖裝置而適用於拉出式門扉的構成例的圖式（門扉開放位 置）。 第1 9圖是表示本發明的第五實施形態的冰箱門扉閉 鎖裝置而適用於拉出式門扉的其他構成例的圖式（門扉關 閉位置）。 第20圖是表示本發明的第五實施形態的冰箱門扉閉 鎖裝置而適用於拉出式門扉的其他構成例的圖式（門扉開 ®放位置）。 在本發明的第一至第四實施形態中，說明在旋轉式門 扉設置門扉閉鎖裝置的構成例，惟本發明的門扉閉鎖裝置 是也可適用蔬菜室等的拉出式門扉，因此藉由第17圖至 第20圖說明此時的第五實施形態。 第17圖是表示引出門扉145位於關閉位置的情形， 而第1 8圖是表示位於開放位置的情形。門扉閉鎖裝置1 〇 的構成是由表示於第2圖至第8圖的第一實施形態的構成 同樣，對於同等構成給予表示相同符號。拉出門扉1 45是 -21 - (19) 1301882 沿著導軌1 46可移動的構成，拉出式地可開閉。 - 引入銷23是設於拉出門扉145的底面中央部，拉出 ^ 門扉145從開放位置朝148方向移動關閉之際，嵌合於設 在門扉閉鎖裝置10的旋轉板12的凹部24而接受旋轉衰 減手段7 〇所致的衰減力一面減速一面藉由彈簧被引入而 關閉。又，拉出門扉145從關閉位置朝147方向移動而開 始開放之際，藉由移動引入銷23而旋轉設於門扉閉鎖裝 • 置10的旋轉板12，在拉出門扉在僅拉出距離S的位置使 得彈簧1 5到跨越旋轉板1 2的旋轉中心1 1的中性點的構 成。 依照此種構成，與表示於第6圖同樣地，朝前方開放 拉出門扉145之際，引入銷23是將旋轉板12進行旋轉而 引拉彈簧俾儲存能量，在開放位置，旋轉板1 2是旋轉至 彈簧1 5越越中性點的位置，因此如第1 9圖所示地，旋轉 板12是被保持在開放位置。 ® 在關閉拉出門扉145之際，一直到成爲開放量S爲止 藉由使用者自如地關閉，當成爲開放量S，引入銷23進 入至旋轉板12的凹部24內部，將旋轉板12進行旋轉， 一直旋轉到彈簧15越越中性點爲止，開放被儲在彈簧15 的能量而引入拉出門扉145，這時候，旋轉衰減手段70是 與旋轉板12 —起旋轉，因此產生制動力，旋轉板12是被 減速，俾減速拉出門扉145對於箭號148方向的速度。拉 出門扉145是被彈簧15引拉，且一面減速一面關閉，因 此可減低關閉拉出門扉1 45之際的衝擊。因此，即使有力 -22- (20) 1301882 急遽地關閉拉出門扉1 4時，也可抑制衝擊聲音而可作成 ， 靜肅的拉出門扉。 ， 第1 9圖與第20圖是表示在第五實施形態中將門扉閉 鎖裝置分別設在設於拉出門扉的側面的左右導軌146的構 成例者；在該構成例中，門扉閉鎖裝置1〇是具備兩種， 而從左右導軌近旁的兩側引入拉出門扉，因此具有更穩定 地進行拉出門扉的引入動作的效果。 • 在以上的說明中，對於具備雙門型的所謂從中向左右 分開的兩扇門式的冷藏室門扇的冰箱加以說明，惟本發明 是並不被限定在雙門型者，如第2 1圖所示的單邊開放型 單門型冰箱也可適用，其作用、效果是與雙門型同等。但 是，門扉的質量大於雙門型，因此門扉閉鎖裝置的彈簧或 旋轉衰減手段是作成強力較適用。 又，上述本發明的實施形態是記載著適用於家庭用的 冰箱的例子，惟本發明是並不限定於家庭用冰箱者，業務 ^ 用冰箱藉由相同的構成可得到同樣的效果。或是，將經烹 飪的食品在仍緩和下暫時保管的溫箱地，具備開閉門扉而 進出儲在內部的食品等的裝置的門扉也可適用，而以同樣 的構成可得到同樣的效果。 如上所述地，本發明的實施形態的冰箱門扉閉鎖裝置 的特徵，可旋轉或復原引入位置與開放位置之間，且藉由 彈簧在引入位置與開放位置之雙方而在可保持該位置的旋 轉板設置凹部，上述凹部的一端是成爲開口部，而在門扉 具備引入銷，上述引入銷是在關閉門扉的狀態下進入至旋 -23- (21) 1301882 轉板的凹部旋轉支點的近旁而以所定推壓力推向框體，當 - 藉由使用者開放門扉，則引入銷與門扉一起移動，旋轉板 . 是旋轉至開放位置並保持位置，門扉是被解除旋轉板與銷 的結合，因此作成使用者是可自如地開閉門扉的構成。又 ，本發明是具備嚙合於旋轉板而進行旋轉的衰減手段，在 關閉門扉之際，當門扉接觸於框體之前一旦減速門扉，可 減低關閉門扉的衝擊的構成。 • 如此地，在本實施形態中，在朝關閉門扉的方向進行 動作之際，作成施加一方向動作阻尼器所造成的衰減力的 構成，因此關閉門扉之際的衝擊較少，使之可靜音化，同 時可避免被收容於門扉內的食品彼此間相撞而受損的情形 。又，在關閉門扉之際，藉由彈簧施加有關閉門扉的方向 的力量。該彈簧的彈力是在關閉門扉之後仍繼續地施加的 構成，因此可防止半開的情形。 ®【圖式簡單說明】 第1圖是表示具備第一實施形態的冰箱門扉閉鎖裝置 的冰箱外觀的立體圖。 第2圖是表示第一實施形態的門扉關閉位置的冰箱門 扉閉鎖裝置的立體圖。 第3圖是表示第一實施形態的門扉開放位置的冰箱門 扉閉鎖裝置的立體圖。 第4圖是表示第一實施形態的門扉關閉位置的冰箱門 扉閉鎖裝置的動作態樣的說明圖。 -24- (22) 1301882 第5圖是表示第一實施形態的門扉開放位置的冰箱門 - 扉閉鎖裝置的動作態樣的說明圖。 . 第6圖是表示作用於第一實施形態的冰箱門扉閉鎖裝 置的旋轉力矩中立位置的動作態樣的說明圖。 第7圖是表示作用於第一實施形態的冰箱門扉閉鎖裝 置的旋轉力矩中立位置近旁的動作態樣的說明圖。 第8圖是表示第一實施形態的門扉開放位置的冰箱門 # 扉閉鎖裝置的俯視圖。 第9圖是表示本發明的第二實施形態的冰箱門扉閉鎖 裝置的斷面構成的圖式。 第1〇圖是表示第二實施形態的冰箱門扉閉鎖裝置的 旋轉板支點周圍的基本構成的斷面圖。 第1 1圖是表示第二實施形態的冰箱門扉閉鎖裝置的 彈簧與旋轉板的配置構成的立體圖。 第1 2圖是表示第二實施形態的冰箱門扉閉鎖裝置的 • 彈簧與旋轉板的配置構成的斷面圖。 第1 3圖是表示本發明的第三實施形態的冰箱門扉閉 鎖裝置的斷面構成的圖式。 第1 4圖是表示本發明的第四實施形態的冰箱門扉閉 鎖裝置的旋轉板復原用桿的俯視圖。 第1 5圖是表示第四實施形態的冰箱門扉閉鎖裝置的 旋轉板復原用桿與蓋體的位置關係的立體圖。 第1 6圖是表示第四實施形態的冰箱門扉閉鎖裝置的 旋轉板復原用桿與蓋體的其他位置關係的立體圖。 -25- (23) 1301882 第1 7圖是表示本發明的第五實施形態的冰箱門扉閉 、 鎖裝置而適用於拉出式門扉的構成例的圖式（門扉關閉位 一 置）。 第1 8圖是表示本發明的第五實施形態的冰箱門扉閉 鎖裝置而適用於拉出式門扉的構成例的圖式（門扉開放位 置）。 第1 9圖是表示本發明的第五實施形態的冰箱門扉閉 • 鎖裝置而適用於拉出式門扉的其他構成例的圖式（門扉關 閉位置）。 第2 0圖是表示本發明的第五實施形態的冰箱門扉閉 鎖裝置而適用於拉出式門扉的其他構成例的圖式（門扉開 放位置）。 第2 1圖是表示將本發明的實施形態的冰箱門扉閉鎖 裝置適用於單邊開放型的單門式冰箱的構成例的圖式。 ®【主要元件之符號說明】 1 :冰箱本體框體 2 :冷藏室 2R，2L :門扉 3 :旋轉支點 4 :蔬菜室 5 :製冰室 6 :功能選擇室 7 :冷凍室 -26- (24) 1301882Fig. 2 is a perspective view showing the door-to-door lock device of the door sill closing position of the first embodiment. Fig. 3 is a perspective view showing the door sill locking device of the sill opening position of the first embodiment. Fig. 4 is an explanatory view showing an operation of the door sill locking device of the door sill closing position of the first embodiment. Fig. 5 is an explanatory view showing an operation of the refrigerator door 扉 lock device of the sill opening position of the first embodiment. Fig. 6 is an explanatory view showing an operation state of a rotational torque neutral position acting on the door sill locking device of the first embodiment. Fig. 7 is an explanatory view showing an operation aspect of the vicinity of the rotational moment neutral position of the refrigerator door lock device of the first embodiment. Fig. 8 is a plan view showing the door sill locking device of the door sill opening position of the first embodiment. In Fig. 1, reference numeral 1 denotes a main body casing of a refrigerator, and the door sills 2R, 2L of the refrigerating compartment 2 are two door-type sills separated from the center to the left and right, and the fulcrum 3 covered by the cover body is used as The center is configured to open and close. The lower side of the refrigerating compartment 2 is a temperature setting suitable for storing vegetables in a vegetable compartment that is pulled forward. The ice making compartment 5 is provided on the left side of the lower part of the vegetable compartment, and ice is produced by an ice making means (not shown) to be accumulated in the ice making compartment. When the ice in the ice making chamber is taken out, the ice amount detecting means (not shown) detects the decrease in the amount of ice, and automatically performs ice making and replenishes the ice in the ice making room. The right side of the ice making compartment is, for example, a function selection room 6. With the user's choice, you can choose any temperature setting for the cooler, cold room or cold room close to water temperature -8- (6) 1301882. Further, the freezing compartment 7 is disposed in the lowermost stage, and frozen food or the like can be accommodated. These thresholds are formed by being rotated around the pivot point or being pulled out approximately parallel to the front, and the user can take out food or supplement food. The refrigerating compartment 2, the vegetable compartment 4, the ice making compartment 5, and the function selecting compartment 6 are provided integrally with the periphery of each chamber door sill of the cooler 7 in contact with the casing to prevent the cold air in each compartment from leaking to the external closing member. The closing member is fixed to the sill side and is generally closed by a magnet sealed inside the planar magnet. When the door sill is blocked, the magnet is attracted to the iron plate constituting the frame, and the frame 1 is completely and uniformly contacted to obtain a seal. As will be described in detail below, the upper surface of the refrigerator 1 is provided with a shackle locking means 10 for fitting (abutting) or leaving (disengaging) the pin 23 provided on the sill 2, and introducing a lock to lock the sill 2 when the sill is blocked. In particular, the deceleration force is applied to the pin 23 by the damping means 70 at the time of blocking the threshold. Therefore, when the threshold 2 is blocked, the threshold is decelerated, and when the closing member provided on the threshold 2 contacts the body 1, the threshold 2 becomes a low speed, so that the collision does not become a silence, and It does not generate impact and is suitable for avoiding damage to food or beverages stored inside the door sill. Hereinafter, a configuration example of the above-described threshold locking means 10 will be described using Figs. 2 to 8 . Fig. 2 and Fig. 3 are perspective views showing a configuration of a sill lock device in a state in which a cover body covering the sill lock means 1 provided on the upper portion of the casing is removed, and Figs. 4 to 8 are plan views. Hereinafter, the right side sill locking means 10R for locking the right side sill 2R will be described in detail, but the left side sill locking means 1 〇L is different only in the shape of the left-right symmetry, and the configuration or action is the same -9 - (7) 1301882 . In the second to fifth figures, the sill 2R is rotatably supported by the periphery of the fulcrum 3 provided at the end of the casing 1, and is configured to be openable and closable. The sill locking means 10 includes a rotating plate 12 that is rotatably supported around the rotating fulcrum 1 by being placed on the base member 8 and reciprocally rotated between an open position and a closed position; in the rotating plate 12, There is a recess 24 which is an opening portion which is open to the outside and which is abutted or disengaged from the lead-in pin 23 of the bracket 22 fixed to the sill 2R. Further, a spring pin 13 is provided on the rotary plate 12, and the tension spring 15 is hung. Between and with the fixing pin 14 provided to the base member 8. The bracket 22 fixed to the sill 2R is provided with a lead-in pin 23 which is provided at an opening angle 0 of a certain threshold so as to be inserted into the recess 24 provided in the rotary plate 12 from the one end opening or The positional relationship of the separation (refer to Figure 6). The introduction pin 23 is configured such that the opening of the sill 2R and the rotating plate 12 enters the inside of the concave portion 24 through the one end opening of the concave portion 24, and conversely passes through the opening portion and is detached from the concave portion 24. In the concave portion 24, at the peripheral portion of the concave portion 24, and abutting on one side of the introduction pin 23, the side close to the threshold 2 is referred to as the outer side 25, and the side farther from the threshold is referred to as the inner side. Side 26. The operation in relation to the recess 24 having the introduction pin 23 and the outer side 25 and the inner side 26 is as follows. 2 (stereo) and 4 (top view) show a state in which the threshold 2R is in the closed position, and the rotary plate 12 is in a closed state in which it is rotated around the counterclock shown by the arrow CCW. The pin 23 provided on the sill 2R is fitted into the recess 24 provided in the rotary plate 12; the pin 23 is -10- (8) 1301882 abuts against the outer side 25 of the recess 24 and faces the spring 扉 2R in the closing direction. The introduction position stopper 28 and the open position stopper 27 provided in the base plate 8 are stoppers for controlling the range of the rotation angle of the open position (refer to Fig. 8) and the introduction position (refer to Fig. 4) of the rotary plate. The height is a height that can only abut against the rotating plate 12 . In a state where the sill 2R is closed and the pin 23 abuts against the concave portion 24 of the rotary plate 12, the rotary plate 12 is not in contact with the introduction position stopper > 8, and has a gap. One end of the spring 15 is hung on the spring hook 13 provided on the rotating plate 1 2, and the other end of the spring is hung on the fixed spring hook 14 provided on the frame, and is hung by the predetermined pulling force F1 (refer to Figure 4). Here, the spring 15 has one end supported by the spring hook 13 provided on the rotating plate 12, and the other end supported by the fixed spring hook 14 provided in the frame 1, in the open position and the closed position of the rotating plate 12. The straight line connecting the both ends of the spring 15 is formed in a positional relationship from one of the rotation fulcrums π of the rotary plate 12 to the other side, so that the rotary plate 12 can be held at the open position or the closed position; in other words, The rotating plate 12 is configured by the spring 15 to perform a toggle operation. The rotation damping means 70 is a resistance addition means for imparting the load resistance to the rotation of the rotary plate. In the case of the present embodiment, the damping force acts when rotating in the CW direction, and when the rotation is in the CCW direction, the damping force is not applied and the direction is idling. The composition of the attenuation action. This one-direction operation is an operation in which the damping force is applied when the door is closed and the damping force is applied when the threshold is opened. As the rotation damping means 70, a known one-direction attenuating action can be employed. 11 - (9) 1301882 A fan gear 72' is provided in a part of the rotary plate 12, and a gear 71 is also provided in the rotation decay-reduction means 7 啮合, and the gears are engaged to make the rotary plate 1 2 to rotate to also rotate the attenuation means. The rotation of 70 is further configured to make the number of teeth of the gear 72 provided in a part of the rotary plate 12 larger than the number of teeth of the gear 71 provided in the rotation damping means 70. The ratio of the number of teeth is 1: N ( N > 1 ), and the rotation damping means 7 is rotated at a speed N times higher than the rotating plate 12. Thus, the rotation damping means 70 is the damping force applied to the stomach # becomes 1/N. Small person. Further, when the threshold 2R is closed, the force received by the rotary plate 12 from the introduction pin 23 is received by the rotation fulcrum 11 of the rotary plate 12, and the rotation attenuation means 70 is transmitted only to the rotational force, so that the rotation attenuation means The shaft of 70 does not have to have the required strength, and can be used at a low cost by using a low-cost simple rotation damping means 70'. Further, as will be described later, the lever 30 is a lever for returning the rotary plate 12 to the open β position when the rotary plate 12 is erroneously rotated in the closing direction in a state where the sill 2R is opened. 4 to 8 are plan views showing the positional relationship between the rotary plate 12 and the lead-in pin 23 in detail when the opening and closing operation of the sill is performed. As described above, FIG. 4 is a view showing the rotary plate 12 rotating in the CCW direction. On the other hand, the pin 23 applies a force P1 (the toggle action caused by the spring 15) to lock the threshold 2R. In Fig. 5, a state in which the rocker 2R is rotated in the CCW direction is gradually opened. Since the pin 23 moves in the P2 direction together with the sill 2R, the pin 23 abuts against the outer side 25 of the recess 24 provided in the rotary plate 12, and rotates the rotary plate 12 in the CCW direction. In Fig. 6 of -12-(10) 1301882, the sill 2R is closed to an angle of 0, and the spring 15 is located directly above the pivot point 1 of the rotating plate 12. In this position, the tension F1 caused by the spring 15 does not generate a moment around the pivot point of the rotating plate 12, and therefore does not rotate in the opening direction or the closing direction, but is located at the neutral point of the neutral position. In this manner, the elastic member of the spring 15 is disposed such that the position at which the tensile force is maximized exists between the closed position of the closing pin sill 2R and the open position at which the receiving portion of the recessed portion 24 is separated from the lead-in pin 23. When the threshold 2R is opened more than the neutral point, the rotating plate 12 is rotated toward the CW side, so that the spring 15 crosses the rotating fulcrum 1 1, and the rotational torque in the CW direction is given to the rotating plate, and the rotating plate is rotated in the CW direction. As shown in Fig. 7, the pin 23 is in contact with the recess 24 to move from the outer side 25 to the inner side 26. The rotating plate 12 is partially stopped by abutting against the open position stopper 27, and is in standby at this position during the opening of the threshold 2R. The state in which the door is open is shown in Fig. 8. ® The following describes the operation when the threshold 2R is locked. At the time of closing, as shown in Fig. 8, the threshold 2R is opened from the open state, and in the order of Fig. 7, Fig. 6, Fig. 5, and Fig. 4, the user rotates the threshold 2R toward the arrow CW. In the case where the threshold is closed, the operation of closing the threshold is extremely slow, and the operation is different from the case where the threshold is closed eagerly. Therefore, the respective operations will be described. First, the case where the threshold is closed very slowly 'this is the state in which the threshold is stopped before reaching the state in which the threshold is completely closed, and becomes the state of the so-called half-open state. As shown in Fig. 7, the pin 23 is in contact with the inner side 26-13-(11) 1301882 of the recess 24, and starts to rotate the rotary plate 12 in the direction of the arrow CCW. At this time, the arrangement is such that the pin 23 is not in contact with the outer side 25 of the recess 24, and only the pin 23 and the inner side 26 are positions where the rotary plate 12 stands by in a predetermined contact. When the threshold 2R is more locked, the state of Fig. 5 is reached, so that the spring 15 crosses the position of the rotation fulcrum 11 of the rotary plate 1 2, and the rotary plate 12 is rotated in the CCW direction by generating a rotational moment in the direction of the arrow CCW. The outer side 25 of the recess 24 is brought into contact with the pin 23. At this time, the rotating plate 12 • generates a moment in the CCW direction by the spring 15 , and the distribution pin 23 applies a force in the direction of the arrow P1 at the threshold, which is the direction in which the threshold 2R is closed, so that the threshold 2R continues to be closed. Finally, it is in a state in which the threshold 2R is closed as shown in Fig. 4 (it does not become a half-open state). At the time of the switching operation, the damping force from the rotation damping means 70 is applied, so that the threshold is slowly closed, and the speed at which the magnet closes the body frame 1 is low, and the lock is generated. Less sound, can be closed quietly. ® The following describes the situation in which the threshold 2R is closed eagerly. When the threshold 2R is suddenly closed, the threshold 2R is decelerated by the damping force generated by the rotation damping means during the period from the seventh to the fifth figure, but the sufficient speed is sufficiently maintained at the time of the fifth drawing. The pin 23 continues to move in the closing direction at a speed greater than the introduction speed of the recess 24 due to the rotation of the rotating plate 12 by the spring 15 in the CCW direction. Therefore, the pin 23 pushes the inner side 26 of the recess 24 in the direction P1, and the rotary plate 12 is rotated in the CCW direction while being pressed by the pin 23. During this period, the damping force caused by the rotation attenuating means 70 is continuously applied, so that the pin 23 is continued -14- (12) 1301882 receives the force in the P2 direction (so-called reaction force) and decelerates. By appropriately setting the rotational damping force generated by the rotation-rotation attenuating means 70, the threshold 2R. can be sufficiently decelerated before reaching the closed position shown in Fig. 4 (the power and rotation of the design to violently close the threshold are appropriately selected. The damping force) makes it possible to make the speed at which the door sill 2R contacts the main body at a low speed, thereby reducing the sound generated when the lock is blocked, and can be closed silently. Further, when the user slams the sill 2R violently, the pin 23 is slammed into the inner side 26 of the recess 24, so that an impact sound is generated. As a means for preventing such an impact sound, the cushioning material such as a rubber sheet is adhered to the inner side edge 26 of the recessed portion 24, so that the above-described impact sound can be avoided, and when the threshold is opened, if the rotational damping force is added, the use is The person can increase the opening power of the threshold, and thus is not expected from the operational aspect. Therefore, the rotational attenuation force is only required when the threshold is closed, and the rotational attenuation means of the one-way motion that idles when the threshold is opened is ideal. ® Second Embodiment A rim lock device according to a second embodiment of the present invention is shown in Figs. 9 to 12 . Fig. 9 is a view showing a sectional configuration of a door sill locking device according to a second embodiment of the present invention. Fig. 1 is a cross-sectional view showing a basic configuration of a periphery of a rotating plate fulcrum of the refrigerator sill locking device of the second embodiment. Fig. 1 is a perspective view showing an arrangement of a spring and a rotating plate of the door sill locking device of the second embodiment. -15- (13) 1301882 Fig. 1 is a cross-sectional view showing the arrangement of the spring and the rotating plate of the door sill locking device of the second embodiment. The refrigerator sill lock device of the present invention is mounted on the refrigerator, and is therefore designed to be thinner in the sill lock device, and it is expected to minimize the full height of the refrigerator. As described above, in the refrigerator sill lock device according to the second embodiment of the present invention, the configuration in which the thickness is reduced can be described using Figs. 9 to 12 . In Fig. 9, the spring 15 is a fulcrum 11 that traverses the rotating plate 12 during the opening and closing operation of the sill. Therefore, the spring 15 does not cross the rotating plate 12 and the rotating fulcrum 11, and must be attached to the rotating plate. Above the 12th. Further, since the pin 23 is moved into the recessed portion, the pin 23 and the recessed portion 24 are disposed so as to be in the entire range of the operation range of the opening and closing of the sill, and do not interfere with the spring 15 to satisfy the above conditions, in order to lock the threshold door 1〇 In the arrangement configuration of the spring 15 and the rotation damping means 70, it is effective to arrange in a state in which the two are not vertically overlapped with each other in the arrangement structure of the spring 15 and the rotation damping means 70. In other words, the rotation damping means 70 is not limited in its arrangement, and can be arranged coaxially with the rotation fulcrum 11 as an example, but is not disposed in such a manner as to be disposed around the rotary plate 12. As shown in FIG. 9, the gear portion 72 is configured to be engageable with the gear 71 provided in the rotation damping means 70, and the rotation damping means 70 and the spring 15 are arranged horizontally to form the threshold locking device 1 in a thin manner. 0. Fig. 10 is a cross-sectional view showing the spring 15 of the configuration of Fig. 9 in the longitudinal direction; the coil portion of the spring 15 is disposed on the rotary plate 12 with a gap gap Gap therebetween. In this arrangement, the pulling force from the spring 15 is taken as F, and the height of the force point of the spring 16 of the spring -16 - (14) 1301882 pin 13 is Η 1, and is applied to the CCW direction of the rotating plate - 12. The rotational torque τ is T = FxHl. With this rotation and the rotational torque, the rotary plate 12 is 虞 which is deformed to form 1 2' as indicated by a broken line in the figure. Thus, a configuration example for preventing deformation of the rotating plate will be described with reference to Figs. 11 and 12 . The configuration examples of Figs. 1 and 2 are different from the configuration examples of Fig. 10 in that the hook portion of the extension spring 15 is formed, and the coil portion of the spring #15 does not overlap with the rotary plate 12. As shown in Figs. 11 and 12, the length L of the hook portion is made larger than the crown circle of the gear portion 72 provided in the rotary plate 12, so that the coil portion of the spring 15 does not come into contact with the gear portion 72. . With this configuration, the hook portion 15a which is merely the spring 15 is superposed on the upper surface of the rotary plate 12, so that the height of the spring 15 which hooks the spring hook (pin) 13 can be set to be extremely close to the upper surface of the rotary plate 12. Therefore, the height of the force point of the spring 15 can be made H2 ( < H1 ). At this time, the rotational torque Τ' applied to the CCW direction of the rotary plate 12 is T' = FxH2 ( < FxH1), so that the deformation of the rotary plate 12 as indicated by the broken line in Fig. 10 can be suppressed. (THIRD EMBODIMENT) Fig. 1 is a cross-sectional view showing a configuration of a door sill locking device according to a third embodiment of the present invention. The third embodiment is another configuration example showing deformation of the rotating plate caused by the spring pulling force. In Fig. 13, 12' is a second rotating plate located above the spring 15, and -17-(15) 1301882 is connected to the rotating plate 12 to be integrally rotated. The upper base - 8 is connected to the base member 8 by the connecting member 19, and the second pivot point 1 I1 is disposed on the upper base, coaxially disposed with the pivot point 11 , and disposed on the second rotating plate The hole is fitted to be in a state of being freely rotatable. With such a configuration, the rotary plates 12, 12' and the rotation fulcrums 1,1, 1' are disposed above and below the spring 15, and the force caused by the spring 15 can be supported from the upper and lower sides of the spring 15, thereby preventing the representation from being The rotating plates #12, 12 of Fig. 10 are in a state of being broken. Fourth Embodiment A refrigerator door sill locking device according to a fourth embodiment of the present invention is shown in Figs. 14 to 16 . Fig. 14 is a plan view showing a rotating plate restoring lever of the door sill locking device of the fourth embodiment of the present invention. Fig. 15 is a perspective view showing a positional relationship between a lever for restoring a rotating plate and a lid of the door sill locking device of the fourth embodiment. Fig. 16 is a perspective view showing another positional relationship between the rotating plate restoring lever and the lid of the door sill locking device of the fourth embodiment. In the first to third embodiments of the present invention, as shown in Fig. 8, when the sill is opened, the rotary plate 12 is held in the open position, and when the sill is closed, the pin 23 is held into the recess 24. Internal positional relationship. However, for example, if each of the erroneous touches of the rotating plate 1 2 or the contact with the article causes the rotating plate 12 to rotate, the pulling force of the spring 15 is introduced, and only the rotating plate 12 is rotated as shown in FIG. Turn to the position of the lead-in position. The rotating plate -18-(16) 1301882 1 2 is in a state of being abutted against the introduction stopper 28 and stopped. In this state - even if the sill 2R is closed, the pin 23 cannot enter the recess 24, and the state in which the sill 2R cannot be closed is generated. In this manner, the rotating plate restoring rod 30 is extended by extending a part of the rotating plate 12, and as shown in FIG. 14, the rotating plate restoring rod 30 is formed so that when the rotating plate 12 is rotated to the lead-in position, the user can The operation is protruded toward the front side, so that the user adds a force to the direction of the figure A. When the sill 2R is in the open position, the rotating plate restoring lever 30 is in an abnormal state as shown in Fig. 14, but it is easy for the user to know that the rotating plate restoring lever 30 is at the abnormal position. It is effective to make the front end portion of the rotating plate restoring rod into a conspicuous color or the like. When the user adds force to the direction of the drawing A, the rotating plate 12 is rotated in the CW direction until the contact with the open position stopper 27, and the rotation is continued until the open position shown in FIG. 8 can be restored to the open state. . The spring 15 is at the # position of the pivot point 11 of the rotating plate 12 during the turning operation, and the rotating plate 12 is held in the open position shown in Fig. 8, so that when the door sill is closed, the seventh drawing can be performed. The blocking action up to Figure 4. In particular, since the rotating plate restoring lever 30 and the rotating plate 12 are integrally provided without increasing the number of parts, it is effective in reducing the cost. In a refrigerator having such a configuration, there is a cover sill locking device. An example of the positional relationship between the lid body 31 of the 10 and the rotating plate restoring rod 30 is shown in Figs. 15 and 16 . The threshold 2r is not shown for easy viewing. The cover 31 for the sill lock device is provided with a slit 32 for rotating the -19-(17) 1301882 rotary plate restoring lever 30 on the front side, and a slit for the rotary pin 23 is provided on the upper surface. Fig. 15 is a view showing a state in which the rotary plate 12 is located at the introduction position, in a case where the sill is normally closed, or a case where only the rotary fox 12 is erroneously rotated to the introduction position as shown in Fig. 14. In the fifth drawing, the rotating plate restoring rod 30 protrudes from the surface of the lid body 31, and the front end of the rotating plate restoring rod 30 is biased by the finger in the direction of the drawing A, whereby the rotating plate 12 can be rotated. The lead-in position is rotated to the open position φ. Here, the locus 30a at the tip end of the rotating plate restoring lever 30 indicated by a broken line is rotated to the open position, and the amount of convexity from the surface of the lid body 31 is reduced, and the rotating plate restoring lever 30 is constructed in the open position. A position that is also introduced than the surface of the cover 31. Here, before the front end portion of the rotating plate restoring lever 30 is introduced, the spring 15 is formed at the position of the rotating plate 12 at a position where the spring 15 crosses the rotating fulcrum 11 as shown in Fig. 6 . Thereafter, by the torque in the CW direction generated by the spring 15, the rotary plate 12 is rotated to abut against the open position stopper 27 in a standby state. With such a configuration, even when the rotary plate 12 is erroneously moved to the introduction position in a state where the sill 2R is opened, the rotary plate 12 can be rotated to the open position by the finger pressing of the rotary plate restoring lever 3R; Lock the threshold 2R. On the one hand, when the threshold is opened, if the rotary plate 12 is in the open position of the normal position, the rotary plate restoring lever 30 is positioned at a position further introduced than the surface of the cover 31, and the user cannot rotate the rotary plate 12 from the open position. Moving to the lead-in position, the rotating plate 12 is moved to the lead-in position without being mischievous or mishandled, and cannot be closed. -20- (18) 1301882 - A fifth embodiment, a refrigerator door sill locking device according to a fifth embodiment of the present invention is shown in Figs. 17 to 20 . Fig. 17 is a view showing a configuration example of a door sill locking device according to a fifth embodiment of the present invention, which is applied to a pull-out sill (a sill closing position). Fig. 18 is a view showing a configuration example of a door sill locking device according to a fifth embodiment of the present invention, which is applied to a pull-out sill (a sill open position). Fig. 19 is a view showing a configuration example of another configuration of the pull-out sill of the refrigerator door sill closing device according to the fifth embodiment of the present invention (a sill closing position). Fig. 20 is a view showing a configuration example of another configuration of the pull-out sill of the refrigerator door sill closing device according to the fifth embodiment of the present invention (a sill opening/closing position). In the first to fourth embodiments of the present invention, a configuration example of the sill lock device is provided in the rotary sill. However, the sill lock device of the present invention is also applicable to a pull-out sill of a vegetable compartment or the like. 17 to 20 illustrate a fifth embodiment at this time. Fig. 17 is a view showing the case where the take-up sill 145 is in the closed position, and Fig. 18 is a view showing the case where it is in the open position. The configuration of the sill lock device 1 〇 is the same as that of the first embodiment shown in Figs. 2 to 8 . The pull-out sill 1 45 is -21 - (19) 1301882 which is movable along the guide rail 1 46 and can be opened and closed in a pull-out manner. - the introduction pin 23 is provided at the central portion of the bottom surface of the pull-out door 145, and is inserted into the recess 24 of the rotary plate 12 provided in the sill lock device 10 when the pull-out door 145 is moved from the open position to the 148 direction. The damping force due to the rotation damping means 7 减速 is decelerated while being turned off by the introduction of the spring. Further, when the pull-out door 145 is moved from the closed position toward the 147 direction and starts to be opened, the rotation plate 12 provided in the sill lock device 10 is rotated by moving the introduction pin 23, and the door sill is pulled out only at the distance S. The position is such that the spring 15 is configured to span the neutral point of the center of rotation 1 1 of the rotating plate 12. According to this configuration, as in the sixth drawing, when the door 145 is pulled out toward the front, the introduction pin 23 rotates the rotary plate 12 to store the energy by the tension spring, and rotates the plate in the open position. It is rotated to the position where the spring 1 5 is more neutral, so as shown in Fig. 19, the rotary plate 12 is held in the open position. When the pull-out threshold 145 is closed, the user can freely close until the opening amount S is reached. When the opening amount S is reached, the introduction pin 23 enters into the concave portion 24 of the rotary plate 12 to rotate the rotary plate 12. Rotating until the spring 15 reaches the neutral point, the energy stored in the spring 15 is opened to introduce the pull-out threshold 145. At this time, the rotation damping means 70 rotates together with the rotating plate 12, thereby generating a braking force and rotating The plate 12 is decelerated and the speed of the sill 145 is pulled out in the direction of the arrow 148. The pull-out threshold 145 is pulled by the spring 15 and is closed while decelerating, thereby reducing the impact of closing the door sill 45. Therefore, even if the force -22-(20) 1301882 closes the pull-out door sill violently, it can suppress the impact sound and make it possible to pull out the threshold. 19 and 20 are diagrams showing a configuration example in which the sill lock device is provided on the left and right guide rails 146 provided on the side surface of the pull-out sill in the fifth embodiment; in this configuration example, the sill lock device 1 There are two types of cymbals, and the pull-out sill is introduced from both sides of the left and right guide rails, so that the introduction operation of pulling out the sill is performed more stably. • In the above description, a refrigerator having a two-door type of two-door type refrigerator door leaf that is separated from the center to the left and right is described, but the present invention is not limited to the double-door type, such as the second one. The single-sided open type single-door refrigerator shown in the figure is also applicable, and its function and effect are the same as those of the double-door type. However, the mass of the sill is greater than that of the double door type, so the spring or the rotation damping means of the sill locking device is more suitable for making the sill. Further, the embodiment of the present invention described above is an example of a refrigerator that is applied to a home. However, the present invention is not limited to a household refrigerator, and the same effect can be obtained by the same configuration of the refrigerator. Alternatively, it is also possible to apply a threshold of a device that opens and closes the door and allows food to enter and exit the food stored in the oven, which is temporarily stored, and the same effect can be obtained by the same configuration. As described above, the feature of the door sill locking device of the embodiment of the present invention can be rotated or restored between the introduction position and the open position, and the rotation of the spring can be maintained at both the introduction position and the open position by the spring. The plate is provided with a recessed portion, and one end of the recessed portion is an opening portion, and the sill is provided with a lead-in pin, and the lead-in pin enters the fulcrum pivot point of the rotary -23-(21) 1301882 turret in a state where the sill is closed. The predetermined pushing force is pushed toward the frame, and when the user opens the sill, the introduction pin moves together with the sill, and the rotating plate is rotated to the open position and held in position, and the sill is released from the combination of the rotating plate and the pin, thus creating The user is free to open and close the threshold. Further, the present invention is provided with a damping means for engaging the rotating plate to rotate, and when the door sill is closed, the door sill is decelerated before the door sill contacts the frame, thereby reducing the impact of closing the sill. • In the present embodiment, when the operation is performed in the direction in which the threshold is closed, the damping force caused by the one-way operation damper is applied. Therefore, the impact at the time of closing the threshold is small, so that it can be muted. At the same time, it can avoid the situation that the foods contained in the threshold collide with each other and are damaged. Also, when the threshold is closed, the force of the direction in which the threshold is closed is applied by the spring. The spring force of the spring is a configuration that continues to be applied after the sill is closed, so that a half-open condition can be prevented. ® [Brief Description of the Drawings] Fig. 1 is a perspective view showing the appearance of a refrigerator including the door sill locking device of the first embodiment. Fig. 2 is a perspective view showing the door sill locking device of the door sill closing position of the first embodiment. Fig. 3 is a perspective view showing the door sill locking device of the sill opening position of the first embodiment. Fig. 4 is an explanatory view showing an operation of the door sill locking device of the door sill closing position of the first embodiment. -24- (22) 1301882 Fig. 5 is an explanatory view showing an operation of the refrigerator door-locking device in the door opening position of the first embodiment. Fig. 6 is an explanatory view showing an operation state of a rotational torque neutral position acting on the door sill locking device of the first embodiment. Fig. 7 is an explanatory view showing an operation aspect of the vicinity of the rotational moment neutral position of the refrigerator door lock device of the first embodiment. Fig. 8 is a plan view showing the refrigerator door # 扉 latching device in the door opening position of the first embodiment. Fig. 9 is a view showing a sectional configuration of a door sill locking device according to a second embodiment of the present invention. Fig. 1 is a cross-sectional view showing a basic configuration of a periphery of a rotating plate fulcrum of the door sill locking device of the second embodiment. Fig. 1 is a perspective view showing an arrangement of a spring and a rotating plate of the door sill locking device of the second embodiment. Fig. 1 is a cross-sectional view showing the arrangement of a spring and a rotating plate of the door sill locking device of the second embodiment. Fig. 1 is a view showing a sectional configuration of a door sill closing device according to a third embodiment of the present invention. Fig. 14 is a plan view showing a rotating plate restoring lever of the door sill locking device of the fourth embodiment of the present invention. Fig. 15 is a perspective view showing a positional relationship between a lever for restoring a rotating plate and a lid body of the door sill locking device of the fourth embodiment. Fig. 16 is a perspective view showing another positional relationship between the rotating plate restoring lever and the lid of the door sill locking device of the fourth embodiment. -25- (23) 1301882 Fig. 1 is a view showing a configuration example of a door sill closing and locking device according to a fifth embodiment of the present invention applied to a pull-out sill (a sill closing position). Fig. 18 is a view showing a configuration example of a door sill locking device according to a fifth embodiment of the present invention, which is applied to a pull-out sill (a sill open position). Fig. 19 is a view showing a configuration example of another configuration of the pull-out sill of the refrigerator door closing/locking device according to the fifth embodiment of the present invention (a sill closing position). Fig. 20 is a view showing a configuration example of another configuration of the pull-out sill of the refrigerator door sill closing device according to the fifth embodiment of the present invention (a sill opening position). Fig. 2 is a view showing an example of a configuration of a single-door refrigerator in which the door sill locking device according to the embodiment of the present invention is applied to a single-sided open type. ® [Symbol description of main components] 1 : Refrigerator body frame 2: Refrigerator 2R, 2L: Threshold 3: Rotary pivot 4: Vegetable room 5: Ice-making room 6: Function selection room 7: Freezer room -26- (24 ) 1301882
8 ： 10 ： 11: 12 ： 13 ： 14 ： 15 ： 22 ： 23 ： 24 ： 25 ： 26 ： 27 ： 28 ： 30 ： 31 ： 70 ： 71， 145 146 g座構件 門扉閉鎖手段 旋轉支點 旋轉板 彈簧鈎 固定彈簧鈎 彈簧 托架 銷 凹部 外側邊 內側邊 開放位置止動件 引入位置止動件 復原用桿 門扉閉鎖手段用蓋體 旋轉衰減手段 72 :齒輪 :拉出門扉 :導軌 -278 : 10 : 11 : 12 : 13 : 14 : 15 : 22 : 23 : 24 : 25 : 26 : 27 : 28 : 30 : 31 : 70 : 71 , 145 146 g seat member sill lock means rotary fulcrum rotary plate spring hook Fixed spring hook spring bracket pin recessed outer side inner side open position stop introduction position stop return lever door 扉 latching means cover rotation attenuation means 72: gear: pull-out threshold: guide rail -27