1377160 九、發明說明 【發明所屬之技術領域】 本發明係關於一種包裝薄膜裝置，是將食品等的包裝 所使用之包裝薄膜的捲狀物收容於容器內，且容易將包裝 薄膜拉出容器外。詳而言之，本發明所提供之包裝薄膜裝 置，能防止從容器拉出後的包裝薄膜因接觸切割刀而發生 之損傷包裝薄膜的「割傷」現象，且藉由凸片讓包裝薄膜 及其端緣（切斷緣部）離開容器壁面，俾用手指抓取包裝 薄膜的端緣並將包裝薄膜拉出容器外。 【先前技術】 習知之包裝薄膜裝置，係將食品等的包裝用的包裝薄 膜的捲狀物收容於容器內，在使用包裝薄膜時將既定量的 包裝薄膜用手拉出容器外，並用設於容器之切割刀切斷後 加以使用。專利文獻1揭示之包裝用薄膜容器，係具備： 用來收納捲狀包裝薄膜之容器本體11、以及在容器本體的 後面部的頂緣連接成可旋動之容器蓋部12。專利文獻1之 包裝用薄膜容器，在容器的前面壁部具備突出片15及可 剝離的黏著劑（stopperness) 19。 〔專利文獻1〕日本特開2005-178901號公報 【發明內容】 習知之包裝薄膜裝置，係將包裝薄膜的捲狀物收容於 容器內，在使用包裝薄膜時將既定長度的包裝薄膜用手拉 1377160 出容器外，並用設於容器之切割刀切斷後加以使用。習知 包裝薄膜裝置，在將捲狀物拉出容器外後，當切割刀移動 至切斷位置，通常是蓋體將開口部閉合後刀鋒最下降的位 置，這時切割刀之刀鋒會按壓從容器拉出後的包裝薄膜， 造成拉出後的包裝薄膜被切斷而發生損傷包裝薄膜之「割 傷」問題。該「割傷」，不僅會造成包裝薄膜損傷，且會 使包裝薄膜的端緣捲回捲狀物上，導致在下次使用時要拉 出包裝薄膜的端緣變困難的問題。 在習知的包裝薄膜裝置，若切斷後的包裝薄膜的端緣 全面附著於容器外壁，之後要使用包裝薄膜時，要用手抓 取包裝薄膜的端緣會有困難，爲解決此問題，係具備讓包 裝薄膜端緣的一部分離開容器外壁之凸片。該凸片，係讓 箱前壁的一部分突出，藉由來使包裝薄膜端緣的一部分離 開箱前壁。然而，若讓包裝薄膜端緣從箱前壁突出，在切 割刀旋動至包裝薄膜之切斷位置時，移動中的刀鋒會抵接 於突出的包裝薄膜部分，而發生前述的割傷問題。本發明 之其他目的及優點，從申請專利範圍、所附圖式及以下的 說明可充分明瞭。 本發明之包裝薄膜裝置，係將包裝薄膜的捲狀物收容 於容器內，並能將包裝薄膜拉出容器外。容器係含有箱本 體及蓋體。箱本體係具備：箱前壁、後壁、底壁、相對向 之2個箱端壁、以及被箱前壁上邊、後壁上邊及相對向之 2個箱端壁上邊所包圍之開口；又具備：連結於箱前壁上 邊，將箱本體內部大致沿箱前壁向下延伸之副前壁、用來 -5- 1377160 防止拉出後的包裝薄膜捲回捲狀物上之黏著劑層、 來讓拉出後的包裝薄膜端緣離開箱前壁之凸片。蓋 備：上壁、蓋前壁、以及固接於蓋前壁之切割刀； 結‘於後壁上邊；切割刀之刀鋒，在蓋體閉合開口時 於箱前壁的下方外面而配置，且形成具有向下突出 之v字形。箱前壁及副前壁係由一張厚紙形成，箱 邊係前述厚紙的彎折部，凸片連結部係彎折部的一 凸片係利用彎折部的復原力來相對於箱前壁進行旋 本發明，「前」代表以收容於箱本體之捲狀物爲基 近切割刀那側，「後」代表其相反側。又「上」代 容於箱本體之捲狀物爲基準而靠近開口那側。 本發明之包裝薄膜裝置中，將上壁（21)的寬 即後壁上邊（1 6 )與蓋前壁上邊（242 )之間的尺 A ’將上壁（21)相對於水平方向的旋轉角設爲R 前壁上邊（2 42 )至刀鋒（223)的尺寸設爲S，將 15)寬度、亦即後壁上邊（16)與凸片連結部（55 尺寸設爲B，將凸片連結部（55)與凸片下緣（51 最大尺寸設爲Η，將凸片（50)相對於垂直方向的 設爲X，且旋轉角R、X分別爲式（1)及（2) 0<R<45。..· ( 1 ) 0<Χ<45°·" ( 2 ) 範圍之數値時， 在凸片下緣之全區域，係符合式（3)及式（4: SxcosR = AxsinR + HxcosX _·· (3) 以及用 體係具 上壁連 係鄰接 的頂部 前壁上 部分， 轉。在 準而靠 表以收 度、亦 寸設爲 ，將蓋 開口（ )間的 )間的 旋轉角 13771601377160 IX. EMBODIMENT OF THE INVENTION [Technical Field] The present invention relates to a packaging film device in which a roll of a packaging film used for packaging a food or the like is housed in a container, and the packaging film is easily pulled out of the container. . In detail, the packaging film device provided by the present invention can prevent the "cutting" phenomenon of the packaging film which is caused by the contact with the cutting blade when the packaging film pulled out from the container is damaged, and the packaging film is caused by the tab. The end edge (cutting edge portion) leaves the wall surface of the container, and the end edge of the packaging film is grasped with fingers and the packaging film is pulled out of the container. [Prior Art] A conventional packaging film device stores a roll of a packaging film for packaging a food or the like in a container, and when the packaging film is used, a predetermined amount of the packaging film is taken out of the container and used for The cutter of the container is cut and used. The film container for packaging disclosed in Patent Document 1 includes a container body 11 for accommodating a roll-shaped packaging film, and a container lid portion 12 that is connected to the top edge of the rear portion of the container body so as to be rotatable. The film container for packaging of Patent Document 1 is provided with a protruding piece 15 and a peelable adhesive 19 in the front wall portion of the container. [Patent Document 1] JP-A-2005-178901 SUMMARY OF THE INVENTION A conventional packaging film device accommodates a roll of a packaging film in a container, and when a packaging film is used, a packaging film of a predetermined length is pulled by hand. 1377160 Out of the container, and cut with a cutting knife set in the container for use. The conventional packaging film device, after the roll is pulled out of the container, when the cutting blade is moved to the cutting position, usually the position where the blade is lowered after the opening is closed, and the blade of the cutting blade is pressed from the container. When the packaged film is pulled out, the packaged film after being pulled out is cut, and the "cutting" problem of the damaged packaging film occurs. This "cutting" not only causes damage to the packaging film, but also causes the end edge of the packaging film to be wound back onto the roll, which causes difficulty in pulling out the edge of the packaging film at the next use. In the conventional packaging film device, if the edge of the cut packaging film is completely attached to the outer wall of the container, and then the packaging film is used, it is difficult to grasp the edge of the packaging film by hand. To solve this problem, A tab having a portion of the end edge of the packaging film that exits the outer wall of the container. The tab is such that a portion of the front wall of the box protrudes to allow a portion of the edge of the wrap film to exit the front wall of the box. However, if the end edge of the packaging film protrudes from the front wall of the box, when the cutting blade is rotated to the cutting position of the packaging film, the moving blade will abut against the protruding portion of the packaging film, and the aforementioned cutting problem occurs. Other objects and advantages of the present invention will be apparent from the description of the appended claims and the appended claims. The packaging film device of the present invention accommodates a roll of a packaging film in a container and can pull the packaging film out of the container. The container contains the case body and the cover body. The box system has: a front wall, a rear wall, a bottom wall, two opposite end walls of the box, and an opening surrounded by the upper side of the front wall of the box, the upper side of the rear wall and the opposite sides of the two box end walls; The utility model is provided with a secondary front wall which is connected to the upper side of the front wall of the box, and extends the inside of the box body substantially along the front wall of the box, and is used for the adhesive layer on the roll of the packaging film which is used for preventing the pull-out of the product from -5 to 1377160 , to let the edge of the packaging film after the pull out of the box front wall of the tab. Covering: upper wall, front wall of the cover, and a cutting knife fixed to the front wall of the cover; the knot is on the upper side of the rear wall; the blade of the cutting blade is disposed outside the front wall of the box when the cover is closed, and A v-shape having a downward protrusion is formed. The front wall and the front front wall of the box are formed by a thick piece of paper, the box edge is a bent portion of the thick paper, and a tab of the bent portion of the tab connecting portion is used with respect to the front wall of the box by the restoring force of the bent portion. In the present invention, "front" represents the side of the cutting blade based on the roll contained in the case body, and "rear" represents the opposite side. Further, "upper" is placed on the side of the opening on the basis of the roll of the box body. In the packaging film device of the present invention, the width of the upper wall (21), that is, the upper side of the rear wall (16) and the upper edge (242) of the front wall of the cover, rotates the upper wall (21) with respect to the horizontal direction. The angle is set to R. The upper edge of the front wall (2 42 ) to the blade edge (223) is set to S, and the width of 15), that is, the upper edge of the rear wall (16) and the tab connection portion (55 size is set to B, the tab is used. The connecting portion (55) and the lower edge of the tab (51 has a maximum size of Η, the tab (50) is set to X with respect to the vertical direction, and the rotation angles R and X are respectively (1) and (2) 0<;R<45..·· (1) 0<Χ<45°·" ( 2 ) When the range is 値, the entire area of the lower edge of the tab conforms to equations (3) and (4: SxcosR = AxsinR + HxcosX _·· (3) and the upper part of the top front wall adjacent to the system with the upper wall connection, turn. On the basis of the table to collect, also set the inch, between the cover opening () Angle of rotation 1377160
HxsinX< ( AxcosR+SxsinR ) -B··· ( 4)。 藉由如此般設定尺寸A、B、S、H，可防止前述之「 割傷j 。式（4)係包含以下式（4a)及式（4b): HxsinXc ( AxcosR+SxsinR ) -B ··· ( 4a)HxsinX< ( AxcosR+SxsinR ) -B··· ( 4). By setting the dimensions A, B, S, and H in this way, the above-mentioned "cutting j" can be prevented. The formula (4) includes the following formulas (4a) and (4b): HxsinXc ( AxcosR + SxsinR ) -B ·· · ( 4a)
HxsinX= ( AxcosR+SxsinR ) -B ··· ( 4b ) 在式（4a)的情形，切割刀之刀鋒223不會接觸凸片 下緣，而不會切斷凸片下緣上方之包裝薄膜。在式（4b) 的情形，切割刀之刀鋒2 23雖會接觸凸片下緣，但並不會 按壓包裝薄膜，因此只會使柔軟的包裝薄膜產生小幅變形 ，但不致造成切斷。 本發明之包裝薄膜裝置係具備以下的構造。（1)箱 前壁及副前壁，係將一片厚紙在彎折部彎折而形成，箱前 壁上邊是由彎折部形成，前述凸片連結部係前述彎折部的 一部分。（2)切割刀形成具有頂部之V字形。（3)切割 刀之V字形的頂部係位於，相對向之2個箱端壁間之距離 之2等分線的附近。（4)使前述凸片相對於箱前壁旋轉 的力量，係利用凸片連結部的彎折部之復原力所產生。（ 5)前述黏著劑層，係配置於箱前壁的外面或前述凸片的 外面上。（6)含有：覆蓋切割刀的刀鋒且以可剝離的方 式固接於箱前壁之密封壁》( 7 )密封壁，係利用蓋前壁 之延長部所形成，且藉由容易破裂的連接部連接於蓋前壁 。容易破裂之連接部，例如爲接縫。（8)以在從箱前壁 剝離密封壁時可露出切割刀之刀鋒的方式，使連接部形成 V字形。（9)密封壁，係利用複數個黏著部來黏著於箱 1377160 前壁，且位於切割刀的v字形頂部附近之黏著部的面積， 係比位於遠離頂部的位置之黏著部的面積更小。 【實施方式】 參照圖式來說明本發明之實施形態。在圖式中，對相 同的構件賦予相同的符號而省略其說明。第1圖係本發明 的1實施例之包裝薄膜裝置之使用開始前的槪略立體圖。 第2A圖係將第1圖的包裝薄膜裝置之密封壁23卸下的狀 S. 態之包裝薄膜裝置的槪略立體圖。第2B圖係從箱前壁 1 2 1卸'下的密封壁23之前視圖。第3圖係第2A圖的包裝 薄膜裝置之蓋體位於打開位置的狀態之槪略立體圖。在第 2A圖，雖顯示出用來將密封壁23黏著於箱前壁121上之 圓形黏著部132、134，但在第3圖的箱前壁121上，則省 略圓形黏著部132、134之圖示。 第4圖係顯示，從第3圖的包裝薄膜裝置之容器10 將包裝薄膜用手61、62拉出的狀態之槪略立體截面圖。 第5圖係將第2A圖的包裝薄膜裝置之箱前壁121、副前 壁125等分解後展開之槪略立體圖。如第1圖至第5圖所 示，包裝薄膜裝置1的構造，係將包裝薄膜36的捲狀物 30收容於容器10內，且能將包裝薄膜36向容器外拉出。 容器10，係含有箱本體12及蓋體2〇。第4圖係顯示，用 左手61拿容器10並用右手62抓取包裝薄膜將其拉出的 狀態。凸片50配置於，相對向的2個箱端壁123間的距 離的2等分線上，或是偏離該2等分線的位置。 -8- 1377160 箱本體丨2係具備：箱前壁121、後壁122、底壁124 、相對向之2個箱端壁123、以及被箱前壁上邊17、後壁 上邊16及相對向之2個箱端壁上邊所包圍之開口 15。箱 本體12進一步具備：連結於箱前壁上邊17,將箱本體內 部大致沿箱前壁121向下延伸之副前壁125、用來防止拉 出後的包裝薄膜36捲回捲狀物30上之黏著劑層14(參照 第3圖）、以及用來讓包裝薄膜及其端緣361離開箱前壁 121之凸片50。如第5圖所示，蓋體20係具備相對應的2 個蓋端壁25。箱前壁121，係具備：在組裝成箱本體時可 固接於箱端壁123之固接部136。 蓋體20係具備：上壁21、蓋前壁24、以及固接於蓋 前壁之切割刀22。上壁21係連結於後壁上邊16。切割刀 22的刀鋒223，當蓋體20閉合箱本體的開口 15時係與箱 前壁121的下方外面鄰接配置，且形成具有向下突出的頂 部2 2 1之V字形。切割刀之V字形的頂部2 21，係位於相 對向的2個箱端壁123、123間的距離之2等分線2 (第1 圖）的附近。 第4圖係顯示，用左手61拿容器10並用右手62抓 取包裝薄膜36將其拉出的狀態。凸片50配置於’從相對 向之2個箱端壁123間之距離的2等分線2偏離的位置’ 但也能配置於包含相對向之2個箱端壁123間之距離的2 等分線之位置。 第6圖係顯示本發明的包裝薄膜裝置之凸片50之槪 略俯視圖。用來讓包裝薄膜及其端緣離開箱前壁121之凸 -9-HxsinX= ( AxcosR+SxsinR ) -B ··· ( 4b ) In the case of the formula (4a), the blade 223 of the cutter does not contact the lower edge of the tab without cutting the packaging film above the lower edge of the tab. In the case of the formula (4b), the blade 2 23 of the cutting blade contacts the lower edge of the tab, but does not press the packaging film, so that only a small deformation of the soft packaging film is caused, but the cutting is not caused. The packaging film device of the present invention has the following structure. (1) Case The front wall and the sub front wall are formed by bending a piece of thick paper at a bent portion, and the upper side of the front wall of the case is formed by a bent portion, and the above-mentioned piece connecting portion is a part of the bent portion. (2) The cutting blade is formed into a V shape having a top portion. (3) The top of the V-shaped shape of the cutting blade is located in the vicinity of the 2 bisector of the distance between the end walls of the two boxes. (4) The force for rotating the above-mentioned fin relative to the front wall of the box is caused by the restoring force of the bent portion of the tab connecting portion. (5) The adhesive layer is disposed on the outer surface of the front wall of the box or on the outer surface of the aforementioned tab. (6) Containing: a sealing wall covering the blade of the cutting blade and being detachably fixed to the front wall of the box. (7) The sealing wall is formed by the extension of the front wall of the cover, and is connected by being easily broken. The part is connected to the front wall of the cover. A joint that is easily broken, such as a seam. (8) The connecting portion is formed in a V shape so that the blade edge of the cutting blade can be exposed when the sealing wall is peeled off from the front wall of the tank. (9) The sealing wall is adhered to the front wall of the box 1377160 by a plurality of adhesive portions, and the area of the adhesive portion near the top of the v-shaped shape of the cutting blade is smaller than the area of the adhesive portion located far from the top. [Embodiment] An embodiment of the present invention will be described with reference to the drawings. In the drawings, the same reference numerals are given to the same members, and the description thereof will be omitted. Fig. 1 is a schematic perspective view showing the use of the packaging film device of the first embodiment of the present invention before the start of use. Fig. 2A is a schematic perspective view of the packaging film device in the state of S. state in which the sealing wall 23 of the packaging film device of Fig. 1 is removed. Figure 2B is a front view of the sealing wall 23 from the front wall 1 2 1 of the tank. Fig. 3 is a schematic perspective view showing the state in which the lid of the packaging film device of Fig. 2A is in an open position. In Fig. 2A, although the circular adhesive portions 132, 134 for adhering the sealing wall 23 to the front wall 121 of the box are shown, the circular adhesive portion 132 is omitted on the front wall 121 of the box of Fig. 3, Graphic of 134. Fig. 4 is a schematic perspective cross-sectional view showing a state in which the packaging film is pulled out by the hand 61, 62 from the container 10 of the packaging film device of Fig. 3. Fig. 5 is a schematic perspective view showing the box front wall 121, the sub front wall 125, and the like of the packaging film apparatus of Fig. 2A exploded. As shown in Figs. 1 to 5, the packaging film device 1 has a structure in which the roll 30 of the packaging film 36 is housed in the container 10, and the packaging film 36 can be pulled out of the container. The container 10 includes a case body 12 and a lid body 2''. Fig. 4 shows a state in which the container 10 is taken with the left hand 61 and the packaging film is taken by the right hand 62 to pull it out. The fins 50 are disposed on the bisector of the distance between the two opposing box end walls 123 or at positions deviating from the bisector. -8- 1377160 The box body 丨 2 system comprises: a box front wall 121, a rear wall 122, a bottom wall 124, two opposite box end walls 123, and a front side wall 17 and a rear wall upper side 16 and opposite sides of the box front wall The opening 15 surrounded by the upper side of the two box end walls. The box body 12 further includes a sub-front wall 125 connected to the front wall 17 of the box, and a sub-front wall 125 extending substantially downwardly along the box front wall 121 to prevent the package film 36 from being pulled back after being pulled out. The upper adhesive layer 14 (see Fig. 3) and the tabs 50 for leaving the packaging film and its end edge 361 away from the front wall 121 of the box. As shown in Fig. 5, the cover 20 is provided with two corresponding cover end walls 25. The box front wall 121 is provided with a fixing portion 136 that can be fixed to the box end wall 123 when assembled into a box body. The lid body 20 includes an upper wall 21, a lid front wall 24, and a cutter blade 22 fixed to the front wall of the lid. The upper wall 21 is coupled to the upper side 16 of the rear wall. The blade 223 of the cutter 22 is disposed adjacent to the lower outer surface of the front wall 121 of the case when the cover 20 closes the opening 15 of the case body, and is formed in a V shape having a top portion 2 2 1 which protrudes downward. The top portion 21 of the V-shape of the cutter is located in the vicinity of the bisector 2 (Fig. 1) of the distance between the opposite two end walls 123, 123. Fig. 4 shows a state in which the container 10 is taken with the left hand 61 and the packaging film 36 is grasped by the right hand 62 to pull it out. The fins 50 are disposed at a position 'from the 2 bisector 2 of the distance between the two end walls 123 of the box', but can also be disposed at a distance 2 including the distance between the two end walls 123 of the box. The location of the line. Fig. 6 is a schematic plan view showing the tab 50 of the packaging film device of the present invention. Used to make the packaging film and its end edge away from the front wall 121 of the box.
1377160 片50，如第.5圖及第6圖所示，係將箱前壁121 以保留與副前壁125的凸片連結部55的方式進 形成。凸片50之下緣51，係利用連結部55所產 而離開箱前壁121。藉由將凸片連結部55拉長，可 述彈性力。如第6圖所清楚顯示，從箱前壁切除與 的兩側鄰接之半圓形部分57、57。半圓形部分57 作用在於，能使凸片50的存在變明顯，便於用手 凸片50而使其隆起，又在用手指抓取包裝薄膜端 時較方便等等。 凸片50的形狀，其下緣51可呈直線狀或曲線 體而言，凸片50的形狀，可爲矩形（正方形、長 ，或以凸片連結部55或下緣51爲上底或下底之梯 緣呈曲線狀的情形，下緣51的中央部可形成凹形 由形成凹形，置於凹形52上之包裝薄膜會從凸片 凹陷，而產生抑制切割刀的「割傷」之效果，此外 取薄膜時，由於形成凹形，而具有容易抓取薄膜的 用來防止拉出後的包裝薄膜36捲回捲狀物30上之 層14(第3圖），可改變位置或以追加的方式配置 50的外面上。凸片50的外面，其下邊離開箱前壁 面而位於容易接觸包裝薄膜36的端緣的位置，因 50外面上的黏著劑層，可將拉出的包裝薄膜36的 確實地黏著並予以保持。 如第1圖、第2A圖及第2B圖所不’包裝薄膜 係含有：用來覆蓋切割刀22的刀鋒並以可剝離的 一部分 切割而 之彈力 增大前 凸片50 、57之 指抓取 緣 361 狀。具 方形） 形。下 52。藉 面稍微 ，在抓 效果。 黏著劑 於凸片 121外 此凸片 端緣更 丨裝置1 方式固 -10- 1377160 接於箱前壁121之密封壁23。密封壁23，係利用 24的延長部來形成，並藉由容易破裂的連接部241 蓋前壁24。連接部241，爲了在從箱前壁121剝離 切割刀22的刀鋒223露出，係形成與刀鋒223離 寸之V字形。如第2A圖及第2B圖所示，密封壁 藉由複數個黏著部132、134來黏著於箱前壁121。 黏著部，分別呈圓形，且相鄰的圓形之中心間的距 ，又接近切割刀22的V字形的頂部221的位置之 134面積，能比遠離頂部221的位置之黏著部132 更小。 第7圖係與包含凸片50之箱端壁123平行的 之包裝薄膜裝置的槪略截面圖，其顯示將蓋體20 放位置移動的狀態。如第7圖所示，切割刀22之刀 ’若蓋體20朝打開箱本體12開口 15的方向繞後 16以角度R旋轉，當從蓋前壁24之上邊242起算 方向尺寸S越大時，會與被拉出之包裝薄膜36隔 的距離。隨著尺寸S增大，切割刀22的刀鋒223 後的包裝薄膜36按壓並切斷之「割傷」現象有減 向。 然而，爲了減少「割傷」現象而增大尺寸S時 2B圖所示密封壁23的線2附近之垂直尺寸T會變 封壁23，必須覆蓋刀鋒223並以不破裂的方式從 121的表面剝離，又在包裝薄膜裝置之使用前，要 實黏著於箱前壁121的表面，以覆蓋切割刀之刀鋒 蓋前壁 連接於 後能使 既定尺 23，係 複數個 離相等 黏著部 的面積 平面上 梢往開 鋒223 壁上邊 之垂直 著更大 將拉出 少的傾 ，如第 小。密 箱前壁 求能確 223 ° -11 - 1377160 因此，密封壁23的2等分線2附近之垂直尺寸T，必須 爲一定値以上，例如1 0 m m以上。本發明中，如第2圖所 示’位於切割刀22之V字形的頂部221附近之黏著部 134、134的面積，可比遠離頂部221的位置之黏著部132 的面積更小。 第7圖中’當切割刀22之刀鋒223與凸片下緣51在 下上方向的位置一致時，在凸片下緣51之全區域，刀鋒 223不會按壓凸片50的狀態成爲不致發生「割傷」的條件 。本發明之包裝薄膜裝置中，將上壁21的寬度、亦即後 壁上邊16與蓋前壁上邊2 42之間的尺寸設爲A，將上壁 21相對於水平方向的旋轉角設爲R，將蓋前壁上邊242至 刀鋒223的尺寸設爲S，將開口 15寬度、亦即後壁上邊 16與凸片連結部55間的尺寸設爲B，將凸片連結部55與 凸片下緣51間的凸片尺寸設爲Η，將凸片50相對於垂直 方向的旋轉角設爲X，且旋轉角R、X分別爲0〜45°的數 値，亦即 0<R<45° …(1 ) 、0<X<45° …（2 )時， 在凸片下緣之全區域，尺寸A、B、S、Η符合以下條 件：The 1377160 piece 50, as shown in Fig. 5 and Fig. 6, is formed by retaining the front wall 121 of the case with the tab connecting portion 55 of the sub front wall 125. The lower edge 51 of the tab 50 is produced by the joint portion 55 and leaves the tank front wall 121. The elastic force can be described by elongating the tab coupling portion 55. As clearly shown in Fig. 6, the semicircular portions 57, 57 adjacent to both sides of the box are cut away from the front wall of the box. The semicircular portion 57 functions to make the presence of the tab 50 conspicuous, to facilitate the bulging of the tab 50 by hand, and to facilitate the grasping of the end of the packaging film with a finger. The shape of the tab 50 may be linear or curved. The shape of the tab 50 may be rectangular (square, long, or with the tab connecting portion 55 or the lower edge 51 as the upper or lower portion). In the case where the bottom edge of the bottom is curved, the central portion of the lower edge 51 may be concavely formed to form a concave shape, and the packaging film placed on the concave shape 52 may be recessed from the convex piece to cause "cutting" of the cutting blade. The effect, in addition to taking the film, is to form a concave shape, and has a layer 14 which is easy to grasp the film for preventing the drawn packaging film 36 from being wound back on the roll 30 (Fig. 3), and the position or The outer surface of the 50 is disposed in an additional manner. The outer surface of the tab 50 is separated from the front wall surface of the box to be in a position to easily contact the end edge of the packaging film 36, and the outer package can be pulled out due to the adhesive layer on the outer surface of the 50 The film 36 is surely adhered and held. As shown in Fig. 1, Fig. 2A and Fig. 2B, the packaging film contains: a blade for covering the blade of the cutting blade 22 and an elastic portion which is cut by a peelable portion. The front tab 50, 57 refers to the gripping edge 361. It has a square shape. . Next 52. By borrowing a little, I am catching the effect. Adhesive on the outside of the tab 121. The end edge of the tab is further fixed by the device 1 -10- 1377160 is connected to the sealing wall 23 of the front wall 121 of the box. The sealing wall 23 is formed by the extension of the 24, and the front wall 24 is covered by the connecting portion 241 which is easily broken. The connecting portion 241 is formed in a V shape that is separated from the blade edge 223 in order to expose the blade edge 223 of the cutting blade 22 from the tank front wall 121. As shown in Figs. 2A and 2B, the sealing wall is adhered to the front wall 121 of the tank by a plurality of adhesive portions 132, 134. The adhesive portions are respectively circular, and the distance between the centers of the adjacent circles, which is close to the position 134 of the V-shaped top portion 221 of the cutting blade 22, can be smaller than the adhesive portion 132 away from the position of the top portion 221. . Fig. 7 is a schematic cross-sectional view showing a packaging film device which is parallel to the box end wall 123 of the tab 50, and shows a state in which the lid body 20 is moved. As shown in Fig. 7, the blade of the cutting blade 22 is rotated at an angle R around the rear 16 in the direction of opening the opening 15 of the case body 12, and the larger the direction dimension S is from the upper side 242 of the front wall 24 of the cover. At the same time, it will be separated from the drawn packaging film 36 by a distance. As the size S increases, the "cutting" phenomenon in which the packaging film 36 after the blade edge 223 of the blade 22 is pressed and cut is reduced. However, in order to reduce the "cut" phenomenon, when the size S is increased, the vertical dimension T near the line 2 of the sealing wall 23 shown in Fig. 2B is changed to the sealing wall 23, and the blade edge 223 must be covered and the surface of the 121 is not broken. Peeling, and before the use of the packaging film device, it is adhered to the surface of the front wall 121 of the box to cover the front edge of the cutting edge of the cutting blade, which can be connected to the rear to enable the predetermined ruler 23, and a plurality of planes of equal adhesion The top of the wall to the front of the opening 223 will be pulled up less, such as the first small. The front wall of the tank is required to be 223 ° -11 - 1377160. Therefore, the vertical dimension T near the bisector 2 of the sealing wall 23 must be more than a certain ,, for example, 10 m or more. In the present invention, as shown in Fig. 2, the area of the adhesive portions 134, 134 located near the top 221 of the V-shape of the cutter blade 22 can be made smaller than the area of the adhesive portion 132 at a position away from the top portion 221. In Fig. 7, when the blade edge 223 of the cutter blade 22 and the lower blade edge 51 are aligned in the lower direction, the blade edge 223 does not press the tab 50 in the entire region of the lower edge 51 of the blade so as not to occur. The condition of the cut. In the packaging film device of the present invention, the width of the upper wall 21, that is, the size between the upper side 16 of the rear wall and the upper side 2 42 of the front wall of the lid is set to A, and the angle of rotation of the upper wall 21 with respect to the horizontal direction is set to R. The size of the front edge 242 of the cover front wall to the blade edge 223 is set to S, and the width of the opening 15 , that is, the dimension between the upper edge 16 of the rear wall and the tab connecting portion 55 is set to B, and the tab connecting portion 55 and the tab are placed under the tab. The size of the tabs between the rims 51 is set to Η, the angle of rotation of the tabs 50 with respect to the vertical direction is X, and the angles of rotation R and X are respectively 0 to 45°, that is, 0 < R < 45°. ...(1), 0 <X<45° (2), in the entire area of the lower edge of the tab, the dimensions A, B, S, and Η meet the following conditions:
SxcosR = AxsinR + HxcosX··· (3)SxcosR = AxsinR + HxcosX··· (3)
HxsinXs ( AxcosR+SxsinR ) -B ··· ( 4)。 作爲其一例，當χ = 4。時，關於切割刀之V字形的頂 部221與凸片下緣之最大尺寸部分接觸的角度，當 A = 4 3 m m、Β = 4 3 mm、S = 2 7 m m、Η = 2 0 m m 時 R 爲 9°。這時 ，代入計算式，HxsinX = 3.1〇mm， ( AxcosR + SxsinR) -12- 1377160 -B = 3.70mm’可知是符合上述關係。藉此可防止包裝薄膜 裝置之前述的「割傷」。 上述式（4)雖包含 HxsinX=(AxcosR + SxsinR) -B ··· (4b)的情形，這時，切割刀的刀鋒22 3僅接觸凸片下緣 ，並不會按壓包裝薄膜，因此柔軟的包裝薄膜不會發生切 斷（損傷）。亦即，實質上不會發生「割傷」。本發明之 包裝薄膜裝置中，用來防止被拉出的包裝薄膜捲回捲狀物 上之黏著劑層，可配置於凸片的外面上。凸片的外面，其 下邊離開箱前壁的外面，而位於包裝薄膜及其切斷緣容易 接觸的位置。因此，凸片外面上的黏著劑層，能將被拉出 的包裝薄膜的切斷緣更確實地黏著並予以保持而發揮優異 的效果。 本發明之包裝薄膜裝置中，密封壁，係利用蓋前壁的 延長部來形成，且藉由容易破裂的連接部來連接於蓋前壁 ，在從箱前壁剝離密封壁時會使切割刀之刀鋒露出。連接 部係形成與切割刀之刀鋒離既定尺寸之V字形，密封壁是 利用複數個黏著部來黏著於箱前壁，且位於切割刀的V字 形頂部附近之黏著部的面積，係比位於遠離頂部的位置之 黏著部的面積更小。因此，密封壁，可覆蓋刀鋒並以不破 裂的方式從箱前壁的表面剝離，又在包裝薄膜裝置之使用 前，能確實黏著於箱前壁的表面，以覆蓋切割刀之刀鋒。 【圖式簡單說明】 第1圖係本發明的1實施例之包裝薄膜裝置之使用開 -13- 1377160 始前的槪略立體圖。 第2A圖係將第1圖的包裝薄膜裝置之密封壁23除去 的狀態之包裝薄膜裝置的槪略立體圖。 第2B圖係從箱前壁121卸下的密封壁23之前視圖。 第3圖係第2A圖的包裝薄膜裝置之蓋體位於打開位 置的狀態之槪略立體圖。 第4圖係顯示，從第3圖的包裝薄膜裝置將包裝薄膜 用手拉出的狀態之槪略立體截面圖。 第5圖係將第2A圖的包裝薄膜裝置之箱前壁、副前 壁等展開之槪略立體圖。 第6圖係凸片之槪略立體圖。 第7圖係在與包含凸片之箱端壁平行的平面上之包裝 薄膜裝置之槪略截面圖。 【主要元件符號說明】 1 :包裝薄膜裝置 2 : 2等分線 1〇 :容器 1 2 :箱本體 1 4 :黏著劑層 1 5 :開口 1 6 :後壁上邊 17:箱前壁上邊（連結部） 20 :蓋體 -14- 1377160 上壁 切割刀 密封壁 蓋前壁 蓋端壁 捲狀物 包裝薄膜 凸片 凸片下緣 凸片連結部 半圓形部分 左手 右手 :箱前壁 :後壁 =箱端壁 :底壁 :副前壁 、134 :黏著部 :固接部 :頂部 :刀鋒 :連接部 :蓋前壁上邊 1377160 361 :包裝薄膜端緣 Η:凸片連結部55與凸片下緣51間之凸片尺寸HxsinXs ( AxcosR + SxsinR ) -B ··· ( 4). As an example, when χ = 4. The angle at which the top 221 of the V-shaped dicing blade contacts the largest dimension portion of the lower edge of the tab when A = 4 3 mm, Β = 4 3 mm, S = 2 7 mm, Η = 2 0 mm It is 9°. At this time, substituting the calculation formula, HxsinX = 3.1 〇 mm, (AxcosR + SxsinR) -12 - 1377160 - B = 3.70 mm' is understood to be in accordance with the above relationship. Thereby, the aforementioned "cutting" of the packaging film device can be prevented. The above formula (4) includes HxsinX=(AxcosR + SxsinR) -B (4b). At this time, the blade edge 22 3 of the cutter only contacts the lower edge of the tab, and does not press the packaging film, so that it is soft. The packaging film does not cut (damage). That is, there is virtually no "cutting". In the packaging film device of the present invention, the adhesive layer for preventing the drawn packaging film from being wound up on the roll may be disposed on the outer surface of the tab. The outer side of the tab has a lower edge that is outside the front wall of the box and is located at a position where the packaging film and its cutting edge are easily accessible. Therefore, the adhesive layer on the outer surface of the fin can exhibit an excellent effect by more reliably adhering and holding the cut edge of the drawn packaging film. In the packaging film device of the present invention, the sealing wall is formed by the extension of the front wall of the cover, and is connected to the front wall of the cover by a connection portion which is easily broken, and the cutting blade is formed when the sealing wall is peeled off from the front wall of the case. The blade is exposed. The connecting portion forms a V-shape with a cutting blade edge away from a predetermined size, and the sealing wall is adhered to the front wall of the box by a plurality of adhesive portions, and the area of the adhesive portion located near the top of the V-shaped shape of the cutting blade is located farther away The area of the adhesive at the top is smaller. Therefore, the sealing wall can cover the blade edge and peel off from the surface of the front wall of the box in a non-destructive manner, and can be surely adhered to the surface of the front wall of the box before the use of the packaging film device to cover the blade edge of the cutting blade. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic perspective view showing the use of the packaging film device of the first embodiment of the present invention from -13 to 1377160. Fig. 2A is a schematic perspective view of the packaging film device in a state where the sealing wall 23 of the packaging film device of Fig. 1 is removed. 2B is a front view of the sealing wall 23 removed from the front wall 121 of the tank. Fig. 3 is a schematic perspective view showing the state in which the lid of the packaging film device of Fig. 2A is in an open position. Fig. 4 is a schematic perspective cross-sectional view showing a state in which the packaging film is pulled out from the packaging film device of Fig. 3. Fig. 5 is a schematic perspective view showing the front wall, the sub front wall, and the like of the packaging film apparatus of Fig. 2A. Figure 6 is a schematic perspective view of the tab. Figure 7 is a schematic cross-sectional view of the packaging film unit on a plane parallel to the end wall of the box containing the tabs. [Description of main component symbols] 1 : Packaging film device 2 : 2 bisector 1 〇: container 1 2 : box body 1 4 : adhesive layer 1 5 : opening 1 6 : upper wall upper 17 : upper side of the box front wall (link Department) 20: Cover body-14- 1377160 Upper wall cutting blade Sealing wall cover Front wall cover End wall Rolling packaging film Tab tab Lower edge Tab connecting part Semicircular part Left hand Right hand: Box front wall: Back wall = box end wall: bottom wall: secondary front wall, 134: adhesive part: fixed part: top: blade front: connecting part: upper side of the front wall of the cover 1377160 361: end edge of the packaging film 凸: tab joint 55 and under the tab Tab size between edges 51
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