1284620 (1) 玖、發明說明 【發明所屬之技術領域】 本發明關於用於固定卡車等上裝載的貨物的皮帶繫緊 用具。 【先前技術】 以往，固定卡車車箱中裝載的貨物的皮帶繫緊用，是 具備：跨接於車箱側壁間的皮帶、和對此皮帶進行繋緊與 放鬆的棘輪式皮帶繫緊用具。棘輪式皮帶繫緊用具由下列 部分構成：即，捲繞皮帶用的皮帶捲繞軸；皮帶捲繞軸貫 設於中心部，並在周圍形成齒輪部的棘輪；可卡合地彈推 棘輪，使棘輪呈僅朝一個方向轉動的止動爪；以及使皮帶 捲繞軸可向捲繞方向轉動的手柄。 前述結構中，在固定貨物的情況時，將二根皮帶各自 的其中一端固定在卡車側壁上，而將其各自的另一端在卡 車車箱的大致中央部連結在皮帶繫緊用具上。然後，利用 以手柄將皮帶捲繞軸向繞緊方向轉動拉緊皮帶，以皮帶將 貨物繫緊固定。又，當解除對貨物的固定的情況時，利用 將止動爪從棘輪上退出到脫離的位置，使皮帶捲繞軸自由 轉動。藉此，利用皮帶的張力使皮帶捲繞軸向放鬆的方向 轉動、鬆開皮帶，來解除對貨物的固定。如此，使用以往 的皮帶繋緊用具就能簡單地進行皮帶的拉緊與放鬆的作業 〇 但是，在前述以往的結構中，在邊利用手柄轉動棘輪 -6 - (2) 1284620 邊進行皮帶拉緊作業時，由於止動爪在從齒輪部的峰部向 谷部的急劇地移動與抵接’故’發出很大的衝擊聲° 又，一旦拉緊皮帶，而將貨物進行繋緊固定時’在固 定著皮帶的卡車兩側上也作用有朝向卡車車箱的內側的很 大的作用力。因此，當將止動爪從棘輪機構脫離’皮帶捲 繞軸能向皮帶放鬆方向轉動時，作用於皮帶上的張力便一 下子釋放出來。隨之，因作用於固定皮帶的一端側的卡車 車箱的兩側壁上的力也一下子釋放出來，所以卡車車箱的 兩側壁會産生劇烈振動並發出破裂聲。 如此，以往的皮帶繋緊用具，在進行皮帶的拉緊及放 鬆作業時存在著向周圍發出很大噪音的問題。此問題在對 小型無人管理商店等進行淸晨及夜間進貨的卡車上尤爲明 顯。 因此，本發明是提供一種能夠防止在進行皮帶拉緊及 放鬆作業時産生噪音的皮帶繫緊用具。 【發明內容】 【發明的揭示】 本發明的皮帶繫緊用具是一種第1皮帶和第2皮帶分 別連結在其一端部和另~端部上，進行相對這些皮帶的張 力的産生和解除之皮帶繋緊用具，其特徵爲：設有：主體 框架；設於前述主體框架的一端部並能捲繞及反繞前述第 1皮帶的皮帶捲繞機構；設於前述主體框架的另一端部並 能以少量長度反繞前述第2皮帶的皮帶放鬆機構，而前述 -7- (3) 1284620 皮帶放鬆機構是具有：重疊並引導前述第2皮帶的第1軸 、從前述第1軸向遠離方向延伸地形成於前述主體框架上 的長孔、移動自如及轉動自如地支承於前述長孔上且在與 該長孔的軸線大致垂直的平面相接觸，並且，將從前述第 1軸引導的第2皮帶進行捲繞而引導至前述第1軸的第2 軸、以及設於前述第2軸的一端部，並使該第2軸轉動的 轉動桿。 根據前述結構的話，能利用使第2軸轉動將第2皮帶 以少量長度緩慢地進行反繞。因而能抑制解除張力時的卡 車側壁的振動並降低噪音。 又，本發明的皮帶繫緊用具的前述第2軸的特徵爲： 至少與前述平面接觸部分的斷面爲多邊形狀或凸輪形狀。 藉此，可確實地進行第2皮帶的反繞。 又，本發明的皮帶繫緊用具，是一種第1皮帶和第2 皮帶分別連結在其一端部和另一端部上，進行相對這些皮 帶的張力的産生和解除的皮帶繫緊用具，其特徵爲：設有 :主體框架；設於前述主體框架的其中一端部並能捲繞及 反繞前述第1皮帶的皮帶捲繞機構；設於前述主體框架的 另一端部並能以少量長度反繞前述第2皮帶的皮帶放鬆機 構’前述皮帶放鬆機構是設有：重疊並引導前述第2皮帶 的第1軸；在前述主體框架上轉動自如地軸支承並將前述 第1軸引導的第2皮帶反繞後引導到前述第1軸的第2軸 :設於前述第2軸的一端部上並使該第2軸轉動的轉動桿 ;以及用來限制前述第2軸轉動的鎖定裝置。藉此，能利 -8- (4) 1284620 用操作轉動桿，來緩慢地反繞第2皮帶，並且在第1皮帶 及第2皮帶産生充分的張力後，能夠防止受到第2軸的轉 動所造成的張力下降。 又，本發明的皮帶繫緊用具的第2軸的特徵爲：在外 周面上實施了相對前述第2皮帶的防滑加工。藉此，能進 一步確實地進行第2皮帶的反繞。 又，本發明的皮帶繋緊用具的放鬆機構的特徵爲：設 有轉動自如地支承於前述主體框架上，且利用一端對前述 第2皮帶按壓，而另一端在與前述第丨軸之間將前述第2 皮帶挾持的皮帶按壓機構。藉此，能夠防止第2皮帶的鬆 動。 又，本發明的皮帶繫緊用具的捲繞機構的特徵爲：設 有：軸支承於前述主體框架上並用來捲繞第1皮帶的皮帶 捲繞軸；與前述皮帶捲繞軸形成同軸地軸支承於前述主體 框架上的手柄；固定於前述皮帶捲繞軸上的棘輪；設於前 述手柄上，並向前述皮帶捲繞軸側彈推而能與前述棘輪卡 合、脫離的第1閂鎖搭扣；以及設於前述主體框架上，並 向前述皮帶捲繞軸側彈推而能與前述棘輪卡合、脫離的第 2閂鎖搭扣。藉此，能簡單地構成皮帶繫緊用具。 又，本發明的皮帶繋緊用具的皮帶捲繞機構的特徵爲 :設有：軸支承於前述主體框架上並捲繞第1皮帶的皮帶 捲繞軸；與前述皮帶捲繞軸形成同軸地軸支承於前述主體 框架上的手柄；固定於前述皮帶捲繞軸上，並在同一方向 上設定了空轉狀態和嚙合狀態的第1單向離合器及第2單 -9- (5) 1284620 向離合器；設於前述手柄上並向前述皮帶 能與前述第1單向離合器卡合、脫離的第 及設於前述主體框架上並向前述皮帶捲繞 前述第2單向離合器卡合、脫離的第2閂 能夠降低在使第1皮帶及第2皮帶産生張 的雙方作業時的噪音。 又，本發明的皮帶繫緊用具，是一種 皮帶分別連結在其一端部和另一端部上， 帶的張力的産生和解除的皮帶繫緊用具， :主體框架；設於前述主體框架的一端部 繞前述第1皮帶的皮帶捲繞機構；設於前 一端部並具有連結前述第2皮帶的皮帶連 捲繞機構是設有：支承於前述主體框架上 帶的皮帶捲繞軸；與前述皮帶捲繞軸形成 則述主體框架上的手柄；固定於前述皮帶 同一方向上設定了空轉狀態和嚙合狀態的 及第2單向離合器；設於前述手柄上，並 軸側彈推而能與前述第1單向離合器卡合 鎖搭扣；以及設於前述主體框架上並向前 彈推而能與前述第2單向離合器卡合、脫 扣。藉此，能夠降低使第1皮帶及第2皮 業時的噪音。 【實施方式】 捲繞軸側彈推而 1閂鎖搭扣；以 軸側彈推而能與 鎖搭扣。藉此， 力和解除此張力 第1皮帶和第2 進行相對兩根皮 其特徵爲：設有 ，並能捲繞及反 述主體框架的另 結軸，前述皮帶 ，並捲繞第1皮 同軸地軸支承於 捲繞軸上，並在 第1單向離合器 向前述皮帶捲繞 、脫離的第1閂 述皮帶捲繞軸側 離的第2閂鎖搭 帶産生張力的作 -10- (6) 1284620 以下，就關於本發明實施方式的皮帶繫緊用 第1圖至第1 5圖說明如下。 本實施例的皮帶繋緊用具是如第1圖所示’ 1皮帶1和第2皮帶2在縱向的一端部和另一端 主體框架3。主體框架3是在寬方向設有左右一 框架板4、4。這兩個框架板4、4的間隔是設定 及第2皮帶1、2的寬度更大的間隔。 又，在主體框架3的其中一端部設有可將第 單方向捲繞的皮帶捲繞機構5。皮帶捲繞機構5 將兩端部轉動自如地軸支承在框架板4、4上的 軸7、和設於皮帶捲繞軸7的兩端部上的第1及 離合器8、9。皮帶捲繞軸7是由具有斷面大致 的一對軸構件7a、7b構成，這對軸構件7a、7b 是受到卡止構件1 5所連結及固定。 又，第1及第2單向離合器8、9是如第4 具有：形成圓環狀的外輪構件1 0、滑動自如地 輪構件1 〇中的內輪構件1 1、在外輪構件1 〇和 1 1之間形成逐漸擴大間隙的複數個空間部1 2、 間部1 2並設定直徑爲卡在各空間部1 2的中部程 構件1 3、設於各空間部1 2，並設在滾筒構件1 3 彈簧14。這種結構的第1及第2單向離合器8、 箭號方向A(手柄20對主體框架3打開的放開〕 時，利用滾筒構件1 3受到彈簧1 4的彈推力向2 的間隙變小的方向移動而卡塞，來使得外輪構件 具’參照 具備：第 部連結的 對平板狀 成較第1 1皮帶向 是具有： 皮帶捲繞 第2單向 呈半圓形 的兩端部 圖所示， 嵌合於外 內輪構件 設於各空 度的滾筒 移動側的 9是在向 Θ向）旋轉 g間部1 2 1 〇形成 -11 - (7) 1284620 與內輪構件嚙合狀態而旋轉。另一方，在向與箭號方向A 相反的相反方向（手柄20對主體框架3閉合的閉鎖方向） 旋轉時，利用滾筒構件1 3邊壓迫彈簧丨4邊向空間部1 2 的間隙擴大方向移動而形成可自由旋轉，使得外輪構件 1 0對內輪構件11形成空轉的狀態。 在前述外輪構件1 0的整個外周面上，交互形成有複 數個凹部1 〇a和凸部1 〇b。另一方面，在內輪構件1 1的 內周部上，以分隔部1 1 a爲中心左右對稱地形成有一對軸 構件貫通孔1 1 b、1 1 b。在這對軸構件貫通孔1 1 b、1 1 b中 分別插通著前述的軸構件7 a、7 b，軸構件7 a、7 b是形成 對內輪構件1 1強固地連結在轉動方向的狀態。 在軸支承前述雙方單向離合器8、9的皮帶捲繞軸7 上轉動自如地設有手柄20。手柄20是具有在皮帶捲繞軸 7的兩端部對稱配置的手柄支承板2 1、22。此手柄支承板 21 > 22的基礎部轉動自如軸支承在皮帶捲繞軸7上。又 ，其中一方的手柄支承板21是配置成’鄰接第2單向離 合器9的外側面，而另一方的手柄支承板2 2是配置成鄰 接第1單向離合器8的內側面。 在前述手柄支承板2 1、2 2的自由端部’橫設有供作 業者把持的把持構件23。又，在手柄支承板21、22之間 的中部，橫設有補強構件2 4，並且設有第1閂鎖搭扣2 5 。補強構件2 4是連結並支承著雙方手柄支承板2 1、2 2 ’ 使保持手柄支承板2 1、22的間隔保持一定。另一方面， 第1閂鎖搭扣2 5是對手柄支承板2 1、2 2進退移動自如地 -12- (8) 1284620 設置成前端部面向皮帶捲繞軸7 —側，並且受到彈簧構件 2 6向皮帶捲繞軸7方向彈推。又，在第1閂鎖搭扣2 5的 後端部上’形成有提起部2 5 a，提起部2 5 a是使用於當作 業者欲將第1 Μ鎖搭扣2 5提起而由皮帶捲繞軸7隔離時 〇 在前述第1 W鎖搭扣2 5的前端側，如第6圖所示， 於寬度方向的兩端部形成有：卡合於第i單向離合器8的 凹部l〇a處的卡合部25b、和用來避開與第2單向離合器 9的凹部l〇a卡合的卡合避開部25c。且，在卡合部25b 與卡合避開部2 5 c之間形成有收容凹部2 5 d，收容凹部 2 5 d是即使在第1皮帶1捲繞在捲繞軸7上後厚度增加時 也不使第1皮帶1觸及第1閂鎖搭扣2 5。從而，這種結 構的第1閂鎖搭扣2 5是在作業者將手離開，僅賦予彈簧 構件2 6的彈推力的情況時，如圖中實線所示，與第1單 向離合器8卡合。另一方面，在作業者將第1閂鎖搭扣 2 5提起並移動到圖中雙點虛線的位置的情況時，解除與 第1單向離合器8的卡合。再者，第1閂鎖搭扣2是無論 是否提起，都不會對第2單向離合器9卡合。 又，卡合部25b的側方是突出在第1閂鎖搭扣25的 外側。卡合部25b突出側的端部是如第1圖所示，移動自 如地卡合在支承板構件27上。支承板構件27是可轉動自 如地軸支承在皮帶捲繞軸7上，並且，經第1單向離合器 8對手柄支承板22並排配置著。藉此，卡合部25b是利 用受到手柄支承板22和支承板構件27所支承在轉動方向 -13- (9) 1284620 ，能在兩構件22、27間發揮強力的剛性作用，即使在經 第1單向離合器8使皮帶捲繞軸7轉動並捲繞第1皮帶1 的情況下，也不會因捲繞時的反作用力發生折曲。 又，在皮帶捲繞軸7的兩端部，分別設有制動構件 3 0、3 0。第1單向離合器8 —側的制動構件3 0是配置於 框架板4與手柄支承板22之間，第2單向離合器9 一側 的制動構件3 0則是配置於第2單向離合器9與框架板4 之間。在各制動構件3 0的外周面上，如第5圖所示，形 成有設定成大致與第1及第2單向離合器8、9的凸部 l〇b相同高度的突設部30a。各突設部30a、30a在可分別 抵接於第6圖的第1閂鎖搭扣2 5的卡合部2 5 b和卡合避 開部25c ’並且，能利用提起第1閂鎖搭扣25來避開抵 接。又，各突設部30a、3 0a是設定了手柄20捲繞動作終 點，並且，在手柄20取得禁止後述的皮帶放鬆機構6動 作的鎖定狀態。 且，在制動構件3 0，於突設部3 0 a的下方形成卡止 凹部3 Ob。在卡止凹部3 Ob上嵌合有第2閂鎖搭扣3 1的 前端部，第2閂鎖搭扣3 1是用來禁止制動構件3 〇的轉動 。第2閂鎖搭扣3 1是如第1圖所示，可移動自如地設於 框架板4、4上，使前端部對皮帶捲繞軸7方向進行進退 移動。又，在第2閂鎖搭扣3 1的後端部，以壓縮狀態連 結著彈簧3 2，彈簧3 2是將第2閂鎖搭扣3〗向皮帶捲繞 軸7方向彈推。 在前述第2閂鎖搭扣3 1的前端側，如第6圖所示， -14- (10) 1284620 於寬度方向的兩端部形成有：卡合於第2單向離合器9的 凹部1 0 a的卡合部3 1 a、和避開與第1單向離合器8的凹 部1 〇a卡合的卡合避開部3 1 b。且，在卡合部3 1 a與卡合 避開部3 1 b之間形成有收容凹部3 1 c，收容凹部3 1 c是即 使在第1皮帶1捲繞在捲繞軸7上而厚度增加的情況時， 也不會使第1皮帶1接觸第2閂鎖搭扣3 1。因而，這種 結構的第2閂鎖搭扣3 1是亦如第5圖所示，當利用彈簧 構件3 2的彈性力而位於圖中實線的皮帶捲繞軸7 —側的 情況時，與第2單向離合器9卡合；另一方面，當後退至 圖中雙點虛線的避開位置的情況時，解除與第2單向離合 器9的卡合。再者，第2閂鎖搭扣31是無論是否提起， 均不會對第1單向離合器8卡合。 前述第2閂鎖搭扣3 1是利用手柄20來後退。即，手 柄20的手柄支承板2 1、22是形成基礎部稍稍突出的彎曲 形狀，利用此基礎部接觸第2閂鎖搭扣3 1的前端處，使 第2閂鎖搭扣3 1向避開方向後退。又，在框架板4的長 方向的端部形成有手柄卡止部4a。手柄卡止部4a是當手 柄20呈使第2閂鎖搭扣3 1後退至避開位置地轉動後的開 放狀態的情況時，利用嵌合第1閂鎖搭扣25，來禁止手 柄20的轉動。又，手柄卡止部4a是如第6圖所示，設定 成避開與第1閂鎖搭扣2 5的卡合部2 5 b卡合的深度。藉 此，當手柄20利用手柄卡止部4a形成開放姿勢時，如第 6圖的雙點虛線所示，形成爲完全避開第1及第2閂鎖搭 扣2 5、3 1和第1及第2單向離合器8、9的卡合的狀態， -15- (11) 1284620 使得皮帶捲繞軸7對框架板4可自由轉動。 以上結構的捲繞機構5是如第1圖所示，利用邊提起 第1閂鎖搭扣25邊使手柄20向對主體框架3打開的開放 方向轉動，來形成開放狀態，並且，利用使其向反方向（ 閉鎖方向）轉動，來形成鎖定狀態。又，在不提起第1閂 鎖搭扣2 5而使手柄20轉動的情況時，在形成各狀態前， 抵接於制動構件3 0的突設部3 0 a和手柄支承板2 1、22。 從而，利用在兩種姿勢間使手柄20在關閉方向及開放方 向交替轉動，能如後所述，使第1皮帶捲繞在皮帶捲繞軸 7上。 在前述皮帶捲繞機構5設於其一端部的主體框架3的 另一端部，設有將第2皮帶2緩慢地進行反繞的皮帶放鬆 機構6。皮帶放鬆機構6是具有：各框架板4、4朝向端 部側向下傾斜的傾斜面4b ;固設並列配置於各框架板4、 4上的放鬆支承板4 1、41 ;橫設於框架板4、4之間，並 將第2皮帶2重疊引導的第1軸42。在第1軸42的兩端 部螺合有螺母43、43，各螺母43是將放鬆支承板41固 定在框架板4上。 各放鬆支承板41是如第7圖所示，形成和安裝成頂 部位於上端部，並且從頂部到一端部側的區域作成從框架 板4露出的狀態。在放鬆支承板41的頂部形成有長孔 4 1 a。長孔4 1 a設定爲長軸方向相對於傾斜面4b垂直。在 相對的放鬆支承板4 1、4 1的長孔4 1 a、4 1 a中，插通著能 捲繞由第1軸42引導的第2皮帶2的第2軸45。 -16- (13) 1284620 拉下，最後從內側方向貫通第1軸4 2與皮帶按壓構件4 8 之間並拉緊。其結果如第1 1圖所示，一旦第2皮帶2上 産生張力，便會利用皮帶按壓構件48向箭號方向轉動並 將上面壓於第1軸4 2 —側，將雙層重疊的第2皮帶2進 行挾持，以防鬆動。又，如第1圖所示，在將第1皮帶1 連結於皮帶捲繞機構5上時，將第1皮帶1的前端部從外 側貫通皮帶捲繞軸7的軸構件7a、7b之間，再使第2皮 帶2和第1皮帶1上産生張力地拉緊。 (繫緊作業） 當安裝作業完成後，接著握住把持構件23，如第2 圖（a)、（b)所示前後轉動手柄20。當手柄20相對主體框 架3向關閉的閉鎖方向轉動時，如第6圖所示，第1閂鎖 搭扣25的卡合部25b卡合於第1單向離合器8的凹部 l〇a上，因此，如第4圖所示，外輪構件10受到向與箭 頭A方向相反的閉鎖方向轉動的力。再者，第2單向離 合器9因爲沒有與第1閂鎖搭扣2 5卡合，所以不會承受 閉鎖方向上的力。 當第1單向離合器8的外輪構件1 0在閉鎖方向上受 力時，外輪構件1 〇的滾筒構件1 3呈壓縮空間部1 2內的 彈簧14邊向寬大側移動，成爲自由轉動的狀態，因此， 外輪構件1 0和內輪構件1 1成爲獨立的狀態。其結果，利 用手柄20，外輪構件1 〇以相對內輪構件1 1空轉的狀態 轉動。 -18- (14) 1284620 另一方面，在第2單向離合器9中，當第1皮帶1上 産生張力時，經皮帶捲繞軸7反繞的方向（箭號方向A爲 反方向）的力作用於內輪構件1 1上。因而，此時外輪構件 10同在箭號方向A(開放方向）上受力時一樣，利用滾筒構 件1 3向空間部1 2的狹窄側移動並卡住，形成由滾筒構件 1 3嚙合內輪構件1 1與外輪構件1 〇的狀態。此時，第2 單向離合器9的外輪構件1 〇利用設於主體框架3上的第 2閂鎖搭扣3 1禁止轉動。藉此，在手柄20向閉鎖方向轉 動時，儘管第1單向離合器8的外輪構件1 0和內輪構件 11呈自由移動狀，由於第2單向離合器9禁止皮帶捲繞 軸7轉動，因此第1皮帶1不會反繞。從而，當第1閂鎖 搭扣2 5觸及到制動構件3 0的突設部3 0 a時，能夠禁止閉 鎖方向的轉動。 接著，如第4圖所示，當手柄20向開放方向（箭號方 向A)轉動時，手柄20的第1閂鎖搭扣25上卡合的第1 單向離合器8的外輪構件1 0承受開放方向上的力。其結 果，滾筒構件1 3向空間部1 2的狹窄側移動並形成嚙合外 輪構件1 0和內輪構件1 1的狀態。藉此，利用軸支承於內 輪構件1 1上的皮帶捲繞軸7向開放方向轉動，形成第1 皮帶1捲繞在皮帶捲繞軸7上的狀態。因而，如第2圖 (a)、（b)所示，利用手柄20在開放方向和閉鎖方向的反復 轉動，使第1皮帶1捲繞在皮帶捲繞軸7上並産生張力。 再者，在手柄20轉動時，第1和第2閂鎖搭扣25、3 1不 會像以往的棘輪式皮帶繫緊用具那樣發出叩撃齒輪的衝擊 -19- (15) 1284620 聲。 此後，當充分地産生張力時，如第5圖所示，能提起 第1閂鎖搭扣25的提起部25a，第1閂鎖搭扣25的前端 設定在高於制動動件3 0的突設部3 0 a的位置。因而，當 手柄20再向閉鎖方向轉動並超過突設部3〇a時，能拉下 第1閂鎖搭扣2 5。藉此，形成由突設部3 〇 a禁止第1閂 鎖搭扣25向開放方向轉動的狀態。其結果，利用手柄20 的自由端側接近或接觸皮帶放鬆機構6的轉動桿4 7，形 成能實行後述的第2皮帶2的解除作業的鎖定皮帶放鬆機 構6的狀態。 (解除作業） 如上前述，在由皮帶繋緊用具100相對第1皮帶1和 第2皮帶2産生充分大的張力後，在卸下貨物時，首先能 利用前述手柄20向開放方向的轉動解除皮帶放鬆機構6 的鎖定狀態。之後，如第7圖所示，皮帶放鬆機構6的轉 動桿47向箭號方向轉動。 藉此，連結於轉動桿47上的第2軸45産生轉動。此 時，在第2軸45上，如第9圖所示，由於第2皮帶2的 反卷，以很大的張力向第1軸42方向彈推，而如第8圖 (a)、（b)所示，第2軸45因轉動邊觸及框架板4的傾斜面 4b邊在長孔41內上下移動，因此，第2皮帶2稍微反卷 。因而，如第9圖所示，第2皮帶2放鬆的部分能從第1 軸42與皮帶按壓構件48之間拉出。又，利用將轉動桿 -20- (17) 1284620 表11284620 (1) Description of the Invention [Technical Field of the Invention] The present invention relates to a belt fastening device for fixing goods loaded on a truck or the like. [Prior Art] Conventionally, a belt for fastening goods loaded in a truck bed is fastened, and includes a belt that is bridged between the side walls of the vehicle and a ratchet belt fastening device that fastens and relaxes the belt. The ratchet belt fastening device is composed of a belt winding shaft for winding a belt, a belt winding shaft that is disposed at a central portion, and a ratchet wheel that forms a gear portion at a periphery thereof; a pawl that rotates the ratchet in only one direction; and a handle that allows the belt winding shaft to rotate in the winding direction. In the above configuration, in the case of fixing the cargo, one end of each of the two belts is fixed to the side wall of the truck, and the other end of each of the two belts is coupled to the belt fastening tool at a substantially central portion of the truck bed. Then, use the handle to turn the belt winding axially around the belt to tighten the belt, and fasten the cargo with the belt. Further, when the fixing of the cargo is released, the belt winding shaft is freely rotated by withdrawing the pawl from the ratchet to the disengaged position. Thereby, the tension of the belt is used to rotate the belt in the direction in which the belt winding is loosened, and the belt is loosened to release the fixing of the cargo. In this way, the belt tightening and loosening operation can be easily performed by using the conventional belt fastening tool. However, in the above-described conventional configuration, the belt is tightened while rotating the ratchet -6 - (2) 1284620 by the handle. During the operation, the pawl is abruptly moved from the peak to the valley of the gear portion and abuts, so that a large impact sound is generated, and once the belt is tightened, the cargo is fastened at the timing. A large force acting toward the inside of the truck bed is also exerted on both sides of the truck to which the belt is fixed. Therefore, when the pawl is disengaged from the ratchet mechanism, the belt winding around the shaft can be rotated in the belt releasing direction, and the tension acting on the belt is released. As a result, the force acting on both side walls of the truck bed acting on one end side of the fixed belt is also released at once, so that both side walls of the truck bed vibrate and rupture. As described above, in the conventional belt fastening device, there is a problem that a large noise is generated to the surroundings when the belt is tightened and loosened. This problem is particularly evident in trucks that are available for small mornings and nights in small unmanned stores. Accordingly, the present invention provides a belt fastening device capable of preventing noise from being generated when a belt is tightened and relaxed. [Disclosure of the Invention] The belt fastening device of the present invention is a belt in which the first belt and the second belt are coupled to one end portion and the other end portion, respectively, and tension is generated and released with respect to the belts. a fastening device, comprising: a main body frame; a belt winding mechanism provided at one end of the main body frame and capable of winding and rewinding the first belt; and being disposed at the other end of the main body frame and capable of The belt releasing mechanism of the second belt is rewinded by a small length, and the -7-(3) 1284620 belt releasing mechanism has a first shaft that overlaps and guides the second belt, and extends away from the first axial direction. The long hole formed in the main body frame is movably and rotatably supported by the long hole and is in contact with a plane substantially perpendicular to the axis of the long hole, and the second guide is guided from the first axis The belt is wound to guide the second shaft of the first shaft, and a rotating rod provided at one end of the second shaft to rotate the second shaft. According to the above configuration, the second belt can be slowly rewinded with a small length by rotating the second shaft. Therefore, the vibration of the side wall of the truck when the tension is released can be suppressed and the noise can be reduced. Moreover, the second shaft of the belt fastening tool of the present invention is characterized in that at least a cross section of the contact portion with the plane is a polygonal shape or a cam shape. Thereby, the rewinding of the second belt can be surely performed. Further, the belt fastening device of the present invention is a belt fastening device in which the first belt and the second belt are coupled to one end portion and the other end portion, respectively, and tension is generated and released from the belt. a main body frame; a belt winding mechanism provided at one end of the main body frame and capable of winding and rewinding the first belt; and being disposed at the other end of the main body frame and capable of rewinding the foregoing with a small length The belt releasing mechanism of the second belt is provided with a first shaft that overlaps and guides the second belt, and a second belt that is rotatably supported by the main body frame and guides the first shaft The second shaft that is guided to the first shaft: a rotation lever provided on one end of the second shaft to rotate the second shaft; and a locking device for restricting rotation of the second shaft. By this, the -8-(4) 1284620 can be used to slowly rewind the second belt by operating the rotating lever, and after the first belt and the second belt are sufficiently tensioned, the rotation of the second shaft can be prevented. The resulting tension drops. Further, the second shaft of the belt fastening tool of the present invention is characterized in that the outer circumferential surface is subjected to anti-slip processing with respect to the second belt. Thereby, the rewinding of the second belt can be further reliably performed. Further, the relaxation mechanism of the belt fastening device of the present invention is characterized in that it is rotatably supported by the main body frame, and the second belt is pressed by one end, and the other end is interposed between the second shaft and the second shaft. The belt pressing mechanism held by the second belt. Thereby, the looseness of the second belt can be prevented. Further, the winding mechanism of the belt fastening device of the present invention is characterized in that: a belt winding shaft that is pivotally supported on the main body frame and that winds the first belt; and a shaft shaft coaxially formed with the belt winding shaft a handle on the main body frame; a ratchet fixed to the belt winding shaft; and a first latch that is provided on the handle and that is pushed toward the belt winding shaft to be engaged with and disengaged from the ratchet And a second latch buckle that is provided on the main body frame and that is pushed toward the belt winding shaft side to be engaged with and detached from the ratchet wheel. Thereby, the belt fastening tool can be easily configured. Further, the belt winding mechanism of the belt fastening tool according to the present invention is characterized in that: a belt winding shaft that is pivotally supported by the main body frame and that winds the first belt is provided; and the belt winding shaft is coaxially supported by the belt winding shaft a handle on the main body frame; a first one-way clutch and a second single-9-(5) 1284620 clutch that are fixed to the belt winding shaft and set in an idle state and an engaged state in the same direction; And the second latch that is engageable and disengageable to the first one-way clutch and that is engageable with and disengages from the first one-way clutch to the belt The noise at the time of both the first belt and the second belt is reduced. Further, the belt fastening device of the present invention is a belt fastening device in which a belt is coupled to one end portion and the other end portion, and tension of the belt is generated and released, and a main body frame is provided at one end portion of the main body frame. a belt winding mechanism that surrounds the first belt; and a belt winding mechanism that is provided at the front end portion and that has the second belt connected thereto: a belt winding shaft that is supported by the belt on the main body frame; and the belt winding Forming a handle on the main body frame around the shaft; fixing the idling state and the meshing state in the same direction of the belt and the second one-way clutch; and providing the second one-way clutch on the handle, and axially pushing the first one The one-way clutch engages the lock buckle; and is disposed on the main body frame and is pushed forward to be engaged and disengaged with the second one-way clutch. Thereby, the noise during the first belt and the second skin can be reduced. [Embodiment] The winding shaft side is pushed and 1 latches the buckle; the shaft side is pushed to be able to engage with the lock buckle. Thereby, the force and the release of the tension of the first belt and the second two opposite skins are characterized by: being provided, and capable of winding and reversing the additional shaft of the main body frame, the belt, and winding the first leather coaxial The ground shaft is supported by the winding shaft, and tension is generated by the second latch strap that is separated from the first latch belt winding shaft on which the first one-way clutch is wound and disengaged from the belt (-10-) 1284620 Hereinafter, the belt fastening of the embodiment of the present invention will be described below with reference to Figs. 1 to 15 . The belt fastening device of the present embodiment is the one end portion of the 1 belt 1 and the second belt 2 in the longitudinal direction and the other end main body frame 3 as shown in Fig. 1. The main body frame 3 is provided with left and right frame plates 4, 4 in the width direction. The interval between the two frame plates 4, 4 is set to be larger than the width of the second belts 1, 2. Further, a belt winding mechanism 5 capable of winding the first direction is provided at one end portion of the main body frame 3. The belt winding mechanism 5 has a shaft 7 that rotatably supports both end portions on the frame plates 4 and 4, and first and second clutches 8, 9 provided at both end portions of the belt winding shaft 7. The belt winding shaft 7 is composed of a pair of shaft members 7a and 7b having a substantially uniform cross section, and the pair of shaft members 7a and 7b are coupled and fixed by the locking members 15. Further, the first and second one-way clutches 8 and 9 have the outer ring member 10 in which the annular shape is formed, the inner ring member 1 1 in the slidable wheel member 1 、, and the outer ring member 1 and A plurality of space portions 1 and 2 are formed between the first and second portions, and the intermediate portion 1 3 having the diameter of the space portion 1 2 is disposed between the first and second portions, and is disposed in each of the space portions 1 2 and is disposed on the drum. Member 1 3 spring 14. When the first and second one-way clutches 8 of the above-described configuration and the arrow direction A (the handle 20 is opened to the main body frame 3), the roller member 13 receives the clearance of the spring 14 from the spring force of the spring 14 to be smaller. When the direction of the outer wheel member is moved, the outer wheel member is provided with a reference plate having a flat portion that is connected to the first belt and has a semicircular shape. It is shown that the outer-inner wheel member 9 is provided on the moving side of the drum of each of the vacancies, and is rotated in the direction of the y-direction 1 2 1 〇 formation -11 - (7) 1284620 is rotated with the inner wheel member. . On the other hand, when rotating in the opposite direction to the arrow direction A (the lock direction in which the handle 20 is closed to the main body frame 3), the roller member 13 presses the spring weir 4 and moves toward the gap of the space portion 1 2 . On the other hand, a state in which the outer ring member 10 is idling to the inner ring member 11 is formed so as to be freely rotatable. On the entire outer peripheral surface of the outer ring member 10, a plurality of concave portions 1a and ab portions 〇b are alternately formed. On the other hand, on the inner peripheral portion of the inner ring member 1 1 , a pair of shaft member through holes 1 1 b and 1 1 b are formed bilaterally symmetrically about the partition portion 1 1 a. The shaft members 7a and 7b are respectively inserted into the pair of shaft member through holes 1 1 b and 1 1 b, and the shaft members 7 a and 7 b are formed to strongly connect the inner wheel member 1 1 in the rotational direction. status. A handle 20 is rotatably provided on a belt winding shaft 7 that supports the both one-way clutches 8, 9 of the shaft. The handle 20 has handle support plates 2, 22 which are symmetrically arranged at both end portions of the belt winding shaft 7. The base portion of the handle support plate 21 > 22 is rotatably supported on the belt winding shaft 7. Further, one of the handle supporting plates 21 is disposed so as to be adjacent to the outer side surface of the second one-way clutch 9, and the other handle supporting plate 22 is disposed adjacent to the inner side surface of the first one-way clutch 8. A grip member 23 for gripping by the operator is disposed across the free end portion of the handle support plates 2 1 and 2 2 . Further, in the middle portion between the handle supporting plates 21, 22, the reinforcing member 24 is horizontally disposed, and the first latch buckle 25 is provided. The reinforcing member 24 is connected and supported by the both handle supporting plates 2 1 and 2 2 ' to keep the interval between the holding handle supporting plates 2 1 and 22 constant. On the other hand, the first latch buckle 25 is movable to the handle support plates 2 1 and 2 2 -12-(8) 1284620, and the front end portion faces the belt winding shaft 7 side, and is subjected to the spring member. 2 6 Bouncing in the direction of the belt winding shaft 7. Further, a lifting portion 25a is formed on the rear end portion of the first latch buckle 25, and the lifting portion 25a is used for the operator to lift the first shackle buckle 25 by the belt. When the winding shaft 7 is isolated, the front end side of the first W lock buckle 25 is slid. As shown in Fig. 6, both ends in the width direction are formed with a recess 1 that is engaged with the i-th one-way clutch 8. The engaging portion 25b at the 〇a and the engaging avoiding portion 25c for avoiding engagement with the recess 10a of the second one-way clutch 9. Further, a housing recessed portion 25d is formed between the engaging portion 25b and the engaging and avoiding portion 2c, and the receiving recessed portion 25d is increased in thickness even after the first belt 1 is wound around the winding shaft 7. The first belt 1 is not caused to touch the first latch buckle 25 as well. Therefore, when the operator removes the hand and only applies the spring force of the spring member 26, the first latch buckle 25 of such a configuration is the first one-way clutch 8 as shown by the solid line in the figure. Engage. On the other hand, when the operator lifts the first latch buckle 25 and moves to the position of the double dotted line in the figure, the engagement with the first one-way clutch 8 is released. Further, the first latch buckle 2 does not engage the second one-way clutch 9 regardless of whether it is lifted or not. Further, the side of the engaging portion 25b protrudes outside the first latch buckle 25. The end portion on the protruding side of the engaging portion 25b is movably engaged with the support plate member 27 as shown in Fig. 1 . The support plate member 27 is rotatably supported by the belt winding shaft 7 and is disposed side by side with respect to the handle support plate 22 via the first one-way clutch 8. Thereby, the engaging portion 25b is supported by the handle supporting plate 22 and the supporting plate member 27 in the rotational direction -13 - (9) 1284620, and can exert a strong rigidity between the two members 22, 27 even in the When the one-way clutch 8 rotates the belt winding shaft 7 and winds the first belt 1, it does not bend due to the reaction force at the time of winding. Further, brake members 30 and 30 are provided at both end portions of the belt winding shaft 7, respectively. The brake member 30 on the side of the first one-way clutch 8 is disposed between the frame plate 4 and the handle support plate 22, and the brake member 30 on the second one-way clutch 9 is disposed on the second one-way clutch 9. Between the frame plate 4. As shown in Fig. 5, on the outer peripheral surface of each of the brake members 30, a projecting portion 30a which is set to have substantially the same height as the convex portions 10b of the first and second one-way clutches 8, 9 is formed. Each of the protruding portions 30a and 30a can abut against the engaging portion 25b and the engaging and avoiding portion 25c' of the first latch buckle 25 of Fig. 6, and can be lifted by the first latch Buckle 25 to avoid the abutment. Further, each of the protruding portions 30a and 30a is set to the end of the winding operation of the handle 20, and the handle 20 is locked in a locked state in which the belt releasing mechanism 6 described later is prohibited. Further, in the brake member 30, a locking recess 3 Ob is formed below the protruding portion 30 a. The front end portion of the second latch buckle 3 1 is fitted to the locking recess 3 Ob, and the second latch buckle 3 1 is for prohibiting the rotation of the brake member 3 。. The second latch buckle 3 1 is movably provided on the frame plates 4 and 4 as shown in Fig. 1, and the front end portion is moved forward and backward in the direction of the belt winding shaft 7. Further, at the rear end portion of the second latch buckle 31, the spring 3 2 is coupled in a compressed state, and the spring 32 pushes the second latch buckle 3 toward the belt winding shaft 7. On the distal end side of the second latch buckle 3 1 , as shown in Fig. 6, -14-(10) 1284620 is formed at both ends in the width direction: a recess 1 that is engaged with the second one-way clutch 9 The engaging portion 3 1 a of 0 a and the engaging avoiding portion 3 1 b that is engaged with the recess 1 〇 a of the first one-way clutch 8 are avoided. Further, a receiving recess 3 1 c is formed between the engaging portion 3 1 a and the engaging avoiding portion 3 1 b, and the receiving recess 3 1 c is thick even when the first belt 1 is wound around the winding shaft 7 In the case of an increase, the first belt 1 is not brought into contact with the second latch buckle 31. Therefore, the second latch buckle 31 of this configuration is also in the case where the elastic force of the spring member 32 is located on the side of the belt winding shaft 7 of the solid line in the drawing, as shown in Fig. 5 The second one-way clutch 9 is engaged with the second one-way clutch 9; on the other hand, when it is retracted to the avoidance position of the two-dotted line in the figure, the engagement with the second one-way clutch 9 is released. Further, the second latch buckle 31 does not engage the first one-way clutch 8 regardless of whether it is lifted or not. The second latch buckle 31 is retracted by the handle 20. That is, the handle supporting plates 2 1 and 22 of the handle 20 are formed in a curved shape in which the base portion slightly protrudes, and the base portion contacts the front end of the second latching buckle 3 1 to circumvent the second latching buckle 3 1 . Retreat in the open direction. Further, a handle locking portion 4a is formed at an end portion of the frame plate 4 in the longitudinal direction. When the handle 20 is in an open state in which the second latch buckle 3 1 is rotated back to the avoiding position, the handle latching portion 4 a prohibits the handle 20 by fitting the first latch buckle 25 . Turn. Further, as shown in Fig. 6, the handle locking portion 4a is set to avoid the depth of engagement with the engaging portion 25b of the first latch buckle 25. Thereby, when the handle 20 is in the open posture by the handle locking portion 4a, as shown by the double-dotted line in Fig. 6, the first and second latch buckles 2, 3, and 1 are completely avoided. And the state in which the second one-way clutches 8, 9 are engaged, -15-(11) 1284620 allows the belt winding shaft 7 to freely rotate the frame plate 4. As shown in Fig. 1, the winding mechanism 5 having the above configuration is configured such that the handle 20 is rotated in the opening direction in which the main body frame 3 is opened while lifting the first latch fastener 25, thereby forming an open state. Rotate in the opposite direction (latching direction) to form a locked state. Further, when the first latch latch 25 is not lifted and the handle 20 is rotated, the protruding portion 30 a of the brake member 30 and the handle supporting plates 2 1 and 22 are abutted before the respective states are formed. . Therefore, by alternately rotating the handle 20 in the closing direction and the opening direction between the two postures, the first belt can be wound around the belt winding shaft 7 as will be described later. At the other end portion of the main body frame 3 provided at one end portion of the belt winding mechanism 5, a belt releasing mechanism 6 for slowly rewinding the second belt 2 is provided. The belt releasing mechanism 6 has an inclined surface 4b which is inclined downward toward the end side of each of the frame plates 4 and 4, and a loose supporting plate 4 1 and 41 which are arranged side by side on each of the frame plates 4 and 4; The first shaft 42 is guided between the plates 4 and 4 and the second belt 2 is superposed. Nuts 43 and 43 are screwed to both ends of the first shaft 42, and each of the nuts 43 fixes the loose support plate 41 to the frame plate 4. Each of the loose support plates 41 is formed and mounted such that the top portion is located at the upper end portion as shown in Fig. 7, and the region from the top portion to the one end portion side is formed to be exposed from the frame plate 4. A long hole 4 1 a is formed at the top of the relaxation support plate 41. The long hole 4 1 a is set such that the long axis direction is perpendicular to the inclined surface 4b. The second shaft 45 of the second belt 2 guided by the first shaft 42 is inserted into the long holes 4 1 a and 4 1 a of the opposite loose support plates 4 1 and 4 1 . -16- (13) 1284620 Pull down and finally pass between the first shaft 4 2 and the belt pressing member 48 from the inside direction and tighten. As a result, as shown in Fig. 1, when the tension is generated in the second belt 2, the belt pressing member 48 is rotated in the direction of the arrow and the upper surface is pressed against the first shaft 4 2 side, and the double layer is overlapped. 2 Belt 2 is held to prevent loosening. Further, as shown in Fig. 1, when the first belt 1 is coupled to the belt winding mechanism 5, the front end portion of the first belt 1 is passed between the shaft members 7a and 7b of the belt winding shaft 7 from the outside. Further, the second belt 2 and the first belt 1 are tension-tensioned. (Tightening work) When the mounting work is completed, the grip member 23 is gripped, and the handle 20 is rotated back and forth as shown in Figs. 2(a) and 2(b). When the handle 20 is rotated in the closed locking direction with respect to the main body frame 3, as shown in Fig. 6, the engaging portion 25b of the first latch buckle 25 is engaged with the recess l〇a of the first one-way clutch 8. Therefore, as shown in Fig. 4, the outer ring member 10 receives a force that rotates in a blocking direction opposite to the direction of the arrow A. Further, since the second one-way clutch 9 is not engaged with the first latch buckle 25, it does not receive the force in the blocking direction. When the outer ring member 10 of the first one-way clutch 8 is biased in the blocking direction, the roller member 13 of the outer ring member 1 is moved toward the wide side by the spring 14 in the compression space portion 12, and is freely rotated. Therefore, the outer ring member 10 and the inner ring member 11 are in an independent state. As a result, with the handle 20, the outer ring member 1 转动 is rotated in a state where the inner ring member 1 1 is idling. -18- (14) 1284620 On the other hand, in the second one-way clutch 9, when the tension is generated on the first belt 1, the direction in which the belt winding shaft 7 rewinds (the direction of the arrow A is the reverse direction) The force acts on the inner wheel member 1 1. Therefore, at this time, the outer ring member 10 is moved to the narrow side of the space portion 1 2 by the roller member 13 as in the case of the force in the arrow direction A (opening direction), and the inner wheel is engaged by the roller member 13 The state of the member 1 1 and the outer wheel member 1 . At this time, the outer ring member 1 of the second one-way clutch 9 is prohibited from rotating by the second latch buckle 31 provided on the main body frame 3. Thereby, when the handle 20 is rotated in the lock direction, although the outer ring member 10 and the inner ring member 11 of the first one-way clutch 8 are freely movable, since the second one-way clutch 9 prohibits the rotation of the belt winding shaft 7, the belt winding shaft 7 is prohibited from rotating. The first belt 1 does not rewind. Therefore, when the first latch buckle 25 comes into contact with the protruding portion 30a of the brake member 30, the rotation in the lock direction can be prohibited. Next, as shown in Fig. 4, when the handle 20 is rotated in the opening direction (arrow direction A), the outer wheel member 10 of the first one-way clutch 8 engaged with the first latch buckle 25 of the handle 20 is subjected to The force in the open direction. As a result, the roller member 13 moves to the narrow side of the space portion 12 and forms a state in which the outer ring member 10 and the inner wheel member 11 are engaged. Thereby, the belt winding shaft 7 supported by the inner ring member 1 is rotated in the opening direction, and the first belt 1 is wound around the belt winding shaft 7. Therefore, as shown in Figs. 2(a) and 2(b), the first belt 1 is wound around the belt winding shaft 7 by the repeated rotation of the handle 20 in the opening direction and the blocking direction to generate tension. Further, when the handle 20 is rotated, the first and second latching buckles 25, 3 1 do not cause the impact of the spur gear -19-(15) 1284620 as in the conventional ratchet belt fastening device. Thereafter, when the tension is sufficiently generated, as shown in Fig. 5, the lifting portion 25a of the first latch buckle 25 can be lifted, and the front end of the first latch buckle 25 is set to be higher than the brake member 30. Set the position of the part 3 0 a. Therefore, when the handle 20 is further rotated in the blocking direction and exceeds the projecting portion 3a, the first latch buckle 25 can be pulled down. Thereby, the state in which the first latching hook 25 is prohibited from rotating in the opening direction by the protruding portion 3 〇 a is formed. As a result, the free end side of the handle 20 approaches or contacts the rotating lever 4 7 of the belt releasing mechanism 6 to form a state in which the locking belt releasing mechanism 6 capable of releasing the second belt 2 to be described later is formed. (Remove operation) As described above, when the belt fastening tool 100 generates a sufficiently large tension against the first belt 1 and the second belt 2, when the cargo is unloaded, the belt can be first released by the rotation of the handle 20 in the opening direction. Relax the locked state of the mechanism 6. Thereafter, as shown in Fig. 7, the rotation lever 47 of the belt releasing mechanism 6 is rotated in the direction of the arrow. Thereby, the second shaft 45 coupled to the rotating lever 47 is rotated. At this time, as shown in FIG. 9 on the second shaft 45, the second belt 2 is re-rolled, and is pushed in the direction of the first shaft 42 with a large tension, as shown in Fig. 8(a), ( b), the second shaft 45 moves up and down in the long hole 41 while touching the inclined surface 4b of the frame plate 4 by the rotation, and therefore the second belt 2 is slightly rewinded. Therefore, as shown in Fig. 9, the portion where the second belt 2 is loose can be pulled out from between the first shaft 42 and the belt pressing member 48. Also, use the turning rod -20- (17) 1284620 Table 1
比較例 實施例 車箱內 95dB 60dB 車箱外 85dB 60dB ※外部噪音水平爲60 dB左右 且，在室內測定了皮帶繫緊用具100操作時的矂音（ 實施例）。測定位置位於皮帶繫緊用具100水平方向 500mm處。使用的皮帶繫緊用具100與上例相同。又’ 在同一條件下測定了使用棘輪式皮帶繫緊用具時的矂音（ 對比例）。測定結果如表2所示。Comparative Example The inside of the car 95dB 60dB Outside the car 85dB 60dB * The external noise level is about 60 dB. The sound of the belt tightening tool 100 is measured indoors (Example). The measurement position is located 500 mm in the horizontal direction of the belt tightening tool 100. The belt tightening tool 100 used is the same as the above example. Further, the voice (comparative) when the ratchet belt fastening device was used was measured under the same conditions. The measurement results are shown in Table 2.
比較例 實施例 88.3dB 57.2dBComparative Example Example 88.3dB 57.2dB
※環境噪音水平爲4 8.4 d B 如上前述，本實施例的皮帶繋緊用具1 00如第1圖所 不，是第1皮帶1和第2皮帶2分別連結在其一^端部和另 一端部上，進行産生與解除對兩皮帶1、2的張力的裝置 。在皮帶繫緊用具100中，設有主體框架3;設於主體框 架3的一端部並能捲繞和反卷第1皮帶1的皮帶捲繞機構 5 ;設於主體框架3的另一端部並能以少量單位反卷第2 -22- (18) 1284620 皮帶2的皮帶放鬆機構6。皮帶放鬆機構6由下列構件構 成，即：重疊並引導第2皮帶2的第1軸42 ;呈從第1 軸42向遠離方向延伸地形成於主體框架3上的長孔41a ;移動自如及轉動自如地軸支承於長孔4 1 a中並與此長孔 41a的軸線大致垂直的平面接觸，並且，將由第1軸42 引導的第2皮帶2捲繞並導引到第1軸42的第2軸45 ; 設於第2軸45的一端部並使此第2軸45轉動的轉動桿 47 〇 藉此，因爲能利用使第2軸4 5轉動將第2皮帶2放 鬆並回卷少量單位，所以能抑制解除張力時卡車側壁的振 動並降低噪音。 再者，在本實施例中，對使用了框架板4作爲與長孔 4 1 a的軸線大致垂直的平面進行了說明，然而不僅限於此 ，也可以是並設於框架板4上的平面構件，還可以在框架 板4本身設置長孔和平面。 又，本實施例的皮帶繫緊用具100的第2軸45除兩 端部外的部分製成橫斷面爲六邊形’此部分呈觸及框架板 4的傾斜部4 b的結構。藉此，能夠確實地進行第2皮帶2 的捲繞。 再者，第2軸45不必爲橫斷面是六邊形，也可以爲 橫斷面爲三角形以上的多邊形及圓形、橢圓形，如第1 3 圖所示，也可以爲凸輪形。又，第2軸45最好至少在觸 及傾斜部4b的部分爲斷面是多邊形或橢圓形、凸輪形。 且，第2軸45最好在外表面實施相對第2皮帶的滾花加 -23- (19) 1284620 工等防滑加工。藉此，能夠進一步確實地進行第2皮帶2 的捲繞。 又，本實施例的皮帶繫緊用具100具有將第2軸45 的轉動進行規制的鎖定裝置的結構。即如第3圖（a)、（b) 所示，將手柄2 0作爲鎖定裝置使用，並利用將此手柄2 〇 形成鎖定狀態，在第1皮帶1及第2皮帶2上充分地産生 張力後，能夠防止因第2軸4 5轉動産生的張力下降。再 者，鎖定裝置的結構也可以如第1 4圖所示，具有形成於 轉動桿47的內部且使長徑方向與轉動桿47的縱向方向一 致的鎖定用長孔47a;進退自如地設於此鎖定用長孔47a 中的鎖定板5 0 ;形成於放鬆支承板4 1上且能卡合鎖定板 5 〇前端部的缺口部4 1 b。在此情況下，能無須介意手柄 20的狀態而僅利用皮帶放鬆機構6變爲鎖定狀態。進一 步，在此情況下，第2軸45也可以爲圓形，只是轉動自 如地支承在主體框架3上。 又，本實施例的皮帶放鬆機構6具有轉動自如地支承 於主體框架3上並利用一端壓緊第2皮帶2另一端在第1 軸42之間挾持第2皮帶2的皮帶按壓構件48(皮帶按壓 機構）的結構。藉此，能夠防止第2皮帶2的鬆動。 又，本實施例的皮帶繋緊用具1 〇〇的捲繞機構5具有 下列結構，即：軸支承於主體框架3上並捲繞第1皮帶的 皮帶捲繞軸7 ;與皮帶捲繞軸7呈同軸狀地軸支承於主體 框架3上的手柄20 ;固定於皮帶捲繞軸7上且將空轉狀 態與嚙合狀態設定在同一方向的第1單向離合器8及第2 -24 - (20) 1284620 單向離合器9 ;設於手柄2 0上、向皮帶捲繞軸7側彈推 而能與第1方向離合器8卡合、脫離的第1閂鎖搭扣25 ;設於主體框架3上、向皮帶捲繞軸7側彈推而能與第2 方向離合器9卡合、脫離的第2閂鎖搭扣3 1。 藉此，能夠降低在第1皮帶1及第2皮帶2上産成張 力和解除此張力的兩項作業時産生的噪音。再者，雖然本 突實施例中具有皮帶捲繞機構5和皮帶放鬆機構6兩種機 構，但不僅限於此，也可以只具有皮帶捲繞機構5 —種機 構。 且，皮帶捲繞機構5如第1 5圖所示，也可以具有下 列結構，即：軸支承於主體框架3上並捲繞第1皮帶的皮 帶捲繞軸7 ;與皮帶捲繞軸7呈同軸狀地軸支承於主體框 架3上的手柄20 ;固定於皮帶捲繞軸7上的棘輪5 i ;設 於手柄20上、向皮帶捲繞軸7側彈推而能與棘輪5丨卡合 、脫離的第1閂鎖搭扣25 ;設於主體框架3上、向皮帶 捲繞軸7側彈推而能與棘輪5 1卡合、脫離的第2閂鎖搭 扣3 1。此時能簡單地構成皮帶繫緊用具1 〇 〇。 【産業上應用的可能性】 以上說明的皮帶繋緊用具能夠應用於固定卡車等中裝 載的貨物的用途。 【圖式簡單說明】 第1圖爲皮帶繫緊用具的斜視圖。 -25- (21) 1284620 第2圖爲顯示皮帶繫緊用具捲繞狀態的說明圖，（a) 爲平面視狀態，（b)爲正面視狀態。 第3圖爲皮帶繫緊用具鎖定狀態的說明圖，（a)爲平 面視狀態，（b)爲正面視狀態。 第4圖爲皮帶繫緊用具主要部位的槪略結構圖。 第5圖爲將皮帶繫緊用具的局部破斷後所顯示的槪略 結構圖。 第6圖爲顯示單向離合器與閂鎖搭扣的卡合狀態的說 明圖。 第7圖爲皮帶放鬆機構的槪略結構圖。 第8圖爲顯示第2軸在長孔內轉動的狀態的說明圖， (a)爲在長孔中下降的狀態，（b)爲在長孔中上升的狀態。 第9圖爲顯示皮帶放鬆機構的第2皮帶引導路徑的說 明圖。 第1 〇圖爲顯示皮帶放鬆機構的第2皮帶從皮帶按壓 構件鬆開後的狀態的說明圖。 第1 1圖爲顯示皮帶放鬆機構的第2皮帶受到皮帶按 壓構件所挾持後的狀態的說明圖。 第1 2圖爲顯示設於卡車上的狀態的說明圖。 第1 3圖爲皮帶放鬆機構的說明圖。 第1 4圖爲已被鎖定的狀態的皮帶放鬆機構的說明圖 〇 第15圖爲皮帶繫緊用具的槪略結構圖。 -26- (22)1284620 【圖號說明】 1 第 1 皮 帶 2 第 2 皮 帶 3 主 體 框 架 4 框 架 板 4 a 手 柄 卡 止 部 4b 傾 斜 面 5 皮 帶 捲 繞 機 構 6 皮 帶 放 鬆 機 構 7 皮 帶 捲 繞 軸 7a 軸 構 件 7b 軸 構 件 8 第 1 單 向 離 合 器 9 第 2 單 向 離 合 器 10 外 击八 m 構 件 10a 凹 部 10b 凸 部 11 內 輪 構 件 11a 分 隔 部 lib 軸 構 件 貫 通 孔 12 空 間 部 13 滾 筒 構 件 14 彈 簧 15 卡 止 構 件 -27- 手柄 手柄支承板 手柄支承板 把持構件 補強構件 第1閂鎖搭扣 提起部 卡合部 卡合避開部 收容凹部 彈簧構件 支承板構件 制動構件 突設部 卡止凹部 第2閂鎖搭扣 卡合部 卡合避開部 收容凹部 彈簧 放鬆支承板 長孔 第1軸 螺帽 -28-※The ambient noise level is 4 8.4 d B. As described above, the belt fastening tool 100 of the present embodiment is as shown in Fig. 1, and the first belt 1 and the second belt 2 are respectively coupled to one end and the other end. On the part, means for generating and releasing the tension between the two belts 1, 2 is performed. In the belt fastening device 100, a main body frame 3 is provided; a belt winding mechanism 5 provided at one end of the main body frame 3 and capable of winding and rewinding the first belt 1 is provided at the other end of the main body frame 3 and The belt release mechanism 6 of the 2nd -22- (18) 1284620 belt 2 can be rewinded in a small number of units. The belt detaching mechanism 6 is composed of a member that overlaps and guides the first shaft 42 of the second belt 2, and has a long hole 41a formed in the main body frame 3 so as to extend away from the first shaft 42 in a direction away from the first shaft 42; The shaft 2 is axially supported by the long hole 4 1 a and is in contact with a plane substantially perpendicular to the axis of the long hole 41a, and the second belt 2 guided by the first shaft 42 is wound and guided to the second shaft 42. A shaft 45; a rotation lever 47 provided at one end of the second shaft 45 and rotating the second shaft 45, whereby the second belt 2 can be loosened and a small number of units can be retracted by rotating the second shaft 45, Therefore, it is possible to suppress the vibration of the side wall of the truck when the tension is released and to reduce the noise. Further, in the present embodiment, the frame plate 4 is used as a plane substantially perpendicular to the axis of the long hole 4 1 a. However, the present invention is not limited thereto, and may be a planar member provided on the frame plate 4 . It is also possible to provide long holes and planes in the frame plate 4 itself. Further, the second shaft 45 of the belt fastening tool 100 of the present embodiment has a hexagonal cross section except for the both end portions. This portion has a configuration in which the inclined portion 4b of the frame plate 4 is touched. Thereby, the winding of the second belt 2 can be surely performed. Further, the second axis 45 does not have to have a hexagonal cross section, and may have a polygonal shape having a triangular cross section or more, a circular shape, or an elliptical shape. As shown in Fig. 1, it may be a cam shape. Further, it is preferable that the second shaft 45 has a polygonal or elliptical cross section and a cam shape at least in a portion that touches the inclined portion 4b. Further, it is preferable that the second shaft 45 is subjected to anti-slip processing on the outer surface with respect to the knurling of the second belt -23-(19) 1284620. Thereby, the winding of the second belt 2 can be further reliably performed. Moreover, the belt fastening tool 100 of the present embodiment has a structure in which a locking device that regulates the rotation of the second shaft 45 is provided. That is, as shown in Fig. 3 (a) and (b), the handle 20 is used as a locking device, and the handle 2 〇 is locked, and the tension is sufficiently generated on the first belt 1 and the second belt 2 After that, it is possible to prevent the tension from being lowered due to the rotation of the second shaft 45. Further, as shown in FIG. 14, the locking device may have a locking long hole 47a formed in the inside of the rotating lever 47 and having a major axis direction aligned with the longitudinal direction of the rotating lever 47. The locking plate 50 in the locking long hole 47a is formed on the loose supporting plate 41 and can engage the notch portion 4 1 b of the front end portion of the locking plate 5 . In this case, it is possible to change to the locked state by only the belt releasing mechanism 6 without having to mind the state of the handle 20. Further, in this case, the second shaft 45 may be circular, but rotatably supported on the main body frame 3. Further, the belt releasing mechanism 6 of the present embodiment has a belt pressing member 48 (belt) that is rotatably supported by the main body frame 3 and that presses the second belt 2 between the first shafts 42 by pressing the other end of the second belt 2 at one end. The structure of the pressing mechanism). Thereby, the looseness of the second belt 2 can be prevented. Further, the winding mechanism 5 of the belt fastening device 1 of the present embodiment has the following structure, that is, a belt winding shaft 7 that is pivotally supported on the main body frame 3 and wound around the first belt; and the belt winding shaft 7 a handle 20 that is coaxially supported on the main body frame 3; a first one-way clutch 8 that is fixed to the belt winding shaft 7 and that sets the idle state and the engaged state in the same direction, and the second -24 - (20) 1284620 The one-way clutch 9 is provided on the handle 20 and is biased toward the belt winding shaft 7 to be engaged with and disengaged from the first direction clutch 8; the first latch buckle 25 is provided on the main body frame 3 The second latch buckle 31 that can be engaged with and disengaged from the second direction clutch 9 by the belt winding shaft 7 side. As a result, it is possible to reduce the noise generated when the tension is generated on the first belt 1 and the second belt 2 and the tension is released. Further, although the present embodiment has both the belt winding mechanism 5 and the belt releasing mechanism 6, it is not limited thereto, and only the belt winding mechanism 5 may be provided. Further, as shown in FIG. 15, the belt winding mechanism 5 may have a structure in which the shaft is supported on the main body frame 3 and the belt winding shaft 7 of the first belt is wound; a handle 20 coaxially supported by the main body frame 3; a ratchet 5 i fixed to the belt winding shaft 7; provided on the handle 20 and pushed toward the belt winding shaft 7 to be engaged with the ratchet 5丨, The first latch buckle 25 that has been detached, and the second latch buckle 31 that is provided on the main body frame 3 and that is pushed toward the belt winding shaft 7 to be engaged with and detached from the ratchet wheel 5 1 . At this time, the belt fastening device 1 〇 can be simply constructed. [Possibility of Industrial Application] The belt fastening tool described above can be applied to the use of goods loaded in a truck or the like. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a belt fastening device. -25- (21) 1284620 Fig. 2 is an explanatory view showing the winding state of the belt tightening device, (a) is a plan view state, and (b) is a front view state. Fig. 3 is an explanatory view showing a state in which the belt fastening device is locked, wherein (a) is a flat view state and (b) is a front view state. Figure 4 is a schematic structural view of the main part of the belt fastening device. Fig. 5 is a schematic structural view showing a part of the belt fastening device after being broken. Fig. 6 is an explanatory view showing the engagement state of the one-way clutch and the latch buckle. Figure 7 is a schematic structural view of the belt relaxing mechanism. Fig. 8 is an explanatory view showing a state in which the second shaft is rotated in the long hole, wherein (a) is a state of being lowered in the long hole, and (b) is a state of being raised in the long hole. Fig. 9 is an explanatory view showing a second belt guiding path of the belt releasing mechanism. The first drawing is an explanatory view showing a state in which the second belt of the belt releasing mechanism is released from the belt pressing member. Fig. 1 is an explanatory view showing a state in which the second belt of the belt releasing mechanism is held by the belt pressing member. Fig. 1 is an explanatory view showing a state of being placed on a truck. Fig. 13 is an explanatory view of the belt relaxing mechanism. Fig. 14 is an explanatory view of the belt releasing mechanism in the locked state. Fig. 15 is a schematic structural view of the belt fastening device. -26- (22)1284620 [Description of the figure] 1 1st belt 2 2nd belt 3 Main frame 4 Frame board 4 a Handle locking part 4b Inclined surface 5 Belt winding mechanism 6 Belt relaxation mechanism 7 Belt winding shaft 7a Shaft member 7b Shaft member 8 1st one-way clutch 9 2nd one-way clutch 10 Externally hit eight m member 10a recessed portion 10b convex portion 11 inner wheel member 11a partition portion lib shaft member through hole 12 space portion 13 roller member 14 spring 15 card Stop member -27- handle handle support plate handle support plate grip member reinforcing member first latch buckle lift portion engagement portion engagement avoidance portion accommodation recess spring member support plate member brake member projection portion locking recess portion second latch Lock buckle engagement part snap-in avoidance part accommodation recess spring relax support plate long hole first shaft nut -28-