201219179 六、發明說明： 【發明所屬之技術領域】 本發明大體上係關於一種將纖維材料分配至自一喷搶施 配之一樹脂材料流中之切割器裝置。特定言之，本發明係 關於一種用於控制一旋轉切割機刀頭與一旋轉砧之間之張 力之裝置。 本申請案主張依據35 U.S.C. §120之發明者Jonathan R. McMichael 及 Corey D. Johnson 於 2010年 9 月 13 日申請之名 稱為「ADJUSTABLE TENSIONING DEVICE」之美國臨時 申請案第61/382,069號之優先權，該案之全文以引用方式 併入。 本申請案主張依據35 U.S.C. §119之發明者James H· Rohrer及 Jonathan R. McMichael於 2010年 11 月 23 日申請之 名稱為「CUTTER BLADE HEAD FOR FIBER ROVING CHOPPER」之PCT申請案第PCT/2010/003029號之優先 權，該案之全文以引用方式併入。 【先前技術】 切割器搶常用在複合材料業中以形成大的成形產品，諸 如用在航海與船舶業及泳池與水療業中。切割器槍包括一 纖維切割器與一液體喷搶之總成。通常，供應壓縮空氣以 給噴搶中之一泵送機構及纖維切割器中之一氣動馬達供 電。喷槍通常接收一液體樹脂材料及一液體觸媒材料。搶 上之一扳機之致動使材料在自槍之一喷嘴喷出之前施配至 一混合腔室中。觸媒與樹脂之混合開始一凝固製程，此最 158778.doc 201219179 終導致材料完全固化後所形成之—剛硬材^纖維切割器 通常係安裝在喷搶頂上。纖維切割器接收穿行於一空轉 輪、一站與—切割器刀頭之間之—纖維材料（諸如玻_ 維)之粗紗。纖維粗紗在砧與切割機刀頭之間被切成小 段，同時因氣動馬達旋轉砧及切割機刀頭而自切割器推出 纖維粗紗。纖維之分段被混人至樹脂與觸媒之噴射混合物 中使得最終固化產品係經纖維強化。 纖維切割器之切割機刀頭及砧包含在超過一臨限磨損程 度後必須替換之可消耗件。例如，切割機刀頭通常包含複 數個剃刀片’且石占包含軟材料之一輥子，剃刀片穿入至該 輥子中同時分割或切割纖維粗紗。然而，即使在需要替換 剃刀片及輥子之前，纖維切割器之性能亦會受可消耗件之 磨損影響。特定言之’剃刀片會變鈍且因此無法完全切割 纖維粗紗。剃刀片亦因有效減小砧之直徑而使砧輥降級， 此亦導致不完全切割。 無需替換剃刀片或砧輥，可藉由將砧重新定位在切割機 刀片之更靠近處而暫時改良纖維切割器之降級性能。先前 技術設計通常需要拆卸切割器槍以執行此等調整。此一操 作之不便通常導致調整在實踐中被忽視。其他外部啟動裝 置（諸如Krohn等人之美國專利第4,〇〇1，935號及J〇nes之美 國專利第3,155,320號中所述之裝置）需要操作者精確調整 切割器刀頭與站之間之張力。若調整不當，則此等機構可 導致不元全切割或快速磨損刺刀片。其他自動調整張力裝 置需要易出故障之精細及複雜機構’諸如Frarn之美國專利 158778.doc 201219179 第3,491，443號中所述之機構。因此，兩 致動系統以自動調整一纖維粗紗：種簡單之外部 與-站之間之張力。 機刀頭 【發明内容】 本發明係針對一種用於調整一纖維粗紗切割器中之可旋 轉接合之切割器頭部之間之位置 包括-安裝板、一滑桿、一可調整頌^置。該張力裝置 擋件'-鎖定裝置、-第—軸及以 壯上a t 禾切割益頭部。該安 匕括…平坦表面’頭部係'經組態以抵著該平扭表面 旋轉；及-狹槽’其佈置在該平坦表面中且具有自一第一 端延伸至一第二端之一滑動表面。該滑桿係佈置在該狹槽 内且在該第一端與該第二端之間且可沿該滑動表面線性移 位。該可調整硬止擋件係佈置在該狹槽之㈣—端處以限 制該滑桿之線性移位。該固定軟止擋件係佈置在該狹槽之 該第二端處以將該滑桿偏壓向該可調整硬止擋件^該鎖定 裝置使該滑桿固定在該狹槽内。該第—軸自該滑桿延伸。 該第一切割器頭部係耦合至該第一軸。 【實施方式】 圖1係其中可使用本發明之一可調整張力裝置之液體喷 搶〗〇與纖維粗紗切割器〗2之一總成之一分解圖。圖丨中顯 不相對於液體喷搶i 0而略微放大之纖維粗紗切割器i 2。液 體喷搶10包括具有手柄14、閥體16、噴嘴18及扳機20之一 雙組分内部混合搶。纖維粗紗切割器12包含氣動馬達22、 外殼24及蓋罩26。噴搶10之閥體16包含閥總成28、空氣入 158778.doc 201219179 口30、材料入口32、觸媒入口34及空氣出口 ％。纖維粗紗 切割器12之外殼24包含纖維入口 38 '鎖定機構4〇、可調整 硬止擋件41、緊固件43 A與43B、旋鈕45，且蓋罩26包含 施配器滑槽42。 在所示實施例十，喷槍10包括一雙組分混合搶，其接收 在經施配以產生固化成一硬化材料之一混合物時混合之兩 種液體組分。-第-組分包括一樹脂材料(諸如聚酯樹脂 或乙烯酯）且經由材料入口 32而供給至閥體16中。一第_ 組分包括導致該樹脂材料硬化之一觸媒材料（諸如過氧化 甲乙酮（MEKP))且經由觸媒入口 34而供給至閥體丨6中。材 料入口 32及觸媒入口 34將各自材料供給至位於閥體16内且 連接至閥總成2 8之閥中。槍1 〇給其他流體（諸如一溶劑）提 供其他入口。扳機20之致動同時導致閥總成28之閥打開及 導致加壓組分流入至喷嘴18中。如圖所示，喷搶1〇包括一 内部混合器，其中兩種組分於入口 32及34處由一外部源 (圖中未顯示）加壓且在進入喷嘴18之前於管件44内被混 合。亦可將加壓空氣提供至喷嘴18以定形或導引混合流動 流。在其他實施例中，在由一外部源（諸如一泵）於閥體16 内加壓材料之後，材料在搶10之外側與來自入口31之空氣 混合且由一混合喷嘴霧化。 來自空氣入口 3 0之加壓空氣係通過閥體丨6而供給至與纖 維切割器12之一氣動馬達22上之一入口（圖中未顯示）連接 之出口 36。一纖維材料（諸如玻璃纖維）之粗紗或股線係通 過纖维入口 38而供給至蓋罩26中。由致動扳機2〇引起之氣 158778.doc 7- 201219179 動馬達22之啟動導致安裝在外殼24上之與一空轉輪接合之 一砧頭將粗紗牽引至一切割機刀頭中，如參考圖3A及圖 3B而更詳細所論述。使用可調整張力裝置52之鎖定機構4〇 及可調整硬止擋件41來調整該砧頭及該空轉輪相對於該切 割機刀頭之位置。短切粗紗段係自施配器滑槽42排入至來 自喷嘴1 8之樹脂材料與觸媒材料之混合流中，使得硬化材 料包含使成品強度增加之纖維增強材料。 在喷搶10及纖維切割器12操作一段時間之後，切割機刀 頭之刀片及砧頭之一切割面被磨損’這是因為刀片因切割 粗紗而變鈍且切割面因刀片而被到傷。然而，在需要替換 此等組件之前，可相對於切割機刀片而重新定位砧頭以尤 其重新校準切割機刀頭之刀片切入至砧頭之一切割面甲之 深度。本發明之可調整張力裝置允許用自外殼24及蓋罩26 外側取得之控制件來重新定位站頭，同時亦自動控制切割 刀片與切割面之間之張力。 圖2A係圓1之纖维粗紗切割器12之一透視圖，其顯示可 調整張力裝置52之固定軟止擋件39及鎖定機構4〇。圖⑶係 圖1之纖維粗紗切割器12之一後端視圖，其顯示可調整張 力裝置52之鎖定機構4〇及可調整硬止擋件41。圖3八係圖ι 之纖維粗紗切割器12之一透視圖，其中已移除蓋罩％以顯 不切割機刀頭46、砧頭48及空轉輪50。圖3B係圖3A之纖 "隹粗切割器12之一透視圖，其中已移除砧頭48及空轉輪 50以顯示可調整張力裝置52之滑桿72。 就此而言，可調整張力裝置52包括耦合至滑桿72之固定 158778.doc 201219179 軟止擋件39、鎖疋機構4〇及可調整硬止擋件41。2A及圖 2B中示纖維粗紗切割器】2之外部組件且參考圖2八及圖 2B而論述纖维粗紗切割器12之外部組件。圖3A中顯示纖 ’准粗、v切割器12之内部組件且參考圖3A及同時參考圖2八及 圖2B而論述纖維粗紗切割器12之操作。圖3B中顯示可調整 張力裝置52之組件且參考圖3B而論述可調整張力裝置52之 組件。參考圖4及圖5而論述可調整張力裝置52之操作。 纖維切割器12包含氣動馬達22、外殼24、纖維入口 38、 固定軟止擋件39、鎖定機構4〇、可調整硬止擋件41、施配 器π ί曰42緊固件43 Α與43Β、旋紐45、可調整張力裝置 52及管件55。切割機刀頭46包含刀片“、刀片g56、間隔 卷軸58及固持帽6〇。砧頭48包含輥子以、固持帽以及緊固 件66。空轉輪5〇包含親子68及緊固件7〇。 參考圖2A及圖2B，蓋罩26包括-多面體，纟具有與外 成24配&之一開口以遮住切割機刀頭46、砧頭及空轉輪 50。蓋罩26包含一開口以允許來自切割機刀頭粍之短切粗 紗經由切割器12而撚成線。施配器滑槽42經由該開口附近 之緊固件43Α及43Β而安装至蓋罩26以接收來自切割機刀 頭46之短切粗紗。施配器滑槽42包括一三面角形板，短切 粗紗在被切割機刀頭總成46切割之後沿該板通過。可使用 緊固件43Β來調整施配器滑槽42基於緊固件43Α之角度以 改變短切粗紗段之轨跡。旋鈕45延伸至蓋罩26中以接合管 件55(圖3Α)及使蓋罩26與外殼24保持接合。 參考圖3Α，切割機刀頭46、砧頭48及空轉輪50係經安裝 158778.doc 201219179 以在外设24上旋轉。外殼24包括一板，切割機刀頭46及砧 頭48係抵著該板而安裝。外殼24包括平坦切割機表面24A 及邊緣周邊24B。特定言之，切割機刀頭46係直接安裝至 自氣動馬達22之轴機構57(圖2B)、穿過外殼24而延伸至固 持帽60中之一驅動軸上。砧頭48及空轉輪5〇係安裝至自外 忒24中之可調整張力裝置52伸出之軸。緊固件66及7〇通常 與軸螺旋接合以分別保持砧頭48及空轉輪5〇。 可調整張力裝置52包括一滑桿（圖3B)，其延伸至可調整 硬止擋件41與固定軟止擋件39之間之外殼24之一對應狹槽 (圖3B)中。固定軟止擋件39之一彈簧使滑桿自動偏離固定 軟止擋件39以在一適當壓力下推動站頭以使其與切割機 刀頭46接觸以切割纖維粗紗。相對於砧頭48而固定空轉輪 50在可5周整張力裝置52之滑桿上之位置。可調整張力裝置 52之滑桿之移動使砧頭48及空轉輪5〇相對於切割機刀頭牝 而移動。可調整硬止擋件41之調整允許不同尺寸之切割機 刀頭46用在切割器12中。另外，可調整硬止擋件41之調整 允許站頭48被移動以補償輥子62之降級。在經可調整硬止 擋件41調整之後，使用鎖定機構4〇來鎖定滑桿之位置。 氣動馬達22藉由旋轉自氣動馬達22之軸機構57延伸之一 驅動軸而旋轉切割機刀頭46。刀片54與輥子62之接合導致 砧頭48亦旋轉。砧頭48通過與輥子68接合而驅動空轉輪5〇 之旋轉。供給至纖維入口 3 8中之粗紗係由站頭4 8及空轉輪 50抓取且被牽引於砧頭48與切割機刀頭钋之間。切割機刀 頭46之刀片54被牵引至包括一可變形材料之輥子62中。當 I58778.doc •10· 201219179 刀片54使石占頭48旋轉且切入至輥子62中時，於刀片54與輥 子62之間將粗紗切成小段。間隔卷軸58使刀片54維持均等 間距使得纖維被一致切成近似尺寸長度。刀片54及輥子62 被磨損且最終需要被替換以防止纖維切割器12之不可接受 之性能降級。例如’在移除蓋罩26之後，移除固持帽64及 60以允許輥子62及刀片匣56自其等各自.安裝軸滑出以執行 維護。然而，在授權進行此維護之前，本發明之可調整張 力裝置5 2可用以將石占頭4 8有利地定位在切割器刀頭4 6之更 靠近處以在可期望深度處再次切割粗紗。 圖3 B係圖3 A之纖維粗紗切割器12之一透視圖，其中已 移除站頭48及空轉輪50以顯示插入至狹槽73中之可調整張 力裝置52之滑桿72。滑桿72包含砧孔74、橢圓形葉片76、 空轉孔78及操縱桿孔80。可調整張力裝置52包含定位在狹 槽73之一第一端處之可調整硬止擋件41及定位在狹槽乃之 第二端處之固定軟止擋件39。就此而言，狹槽73係延長於 硬止擋件41與軟止擋件39之間。可調整硬止擋件41包含螺 紋軸82、旋鈕84及夾具86。固定軟止擋件39包含端止擋件 肫、彈簧90及緊固件92。可調整張力裝置52亦包含鎖定機 構40 ’其包含軸94及操縱桿％。 滑桿72係定位在狹槽73内之可調整硬止擋件“與固定軟 止私件39之間。滑桿72因此可線性移位於軸82與端帽“之 間。彈簧90係定位在端帽88與滑桿72之 向硬止擅件41。在本發明之其他實施财，其他== 或材料（諸如一可變形聚合物止擋件）可用來取代彈簧9〇。 158778.doc 201219179 緊固件92係螺合至外殼24中使得硬止撐㈣之抽82延伸至 狹槽73中。軸82之端部限制彈脊9〇可將滑㈣推入狹㈣ 内之數量。夾具86防止軸82自外殼24沖出。鎖定機構刊之 T紋軸94延伸穿過外殼24以接合滑桿72之螺紋孔8卜操縱 桿96自軸94延伸以實現軸94之旋轉。 空轉輪50之-袖自空轉孔78内之橢圓形葉另％延伸。砧 頭48之另一軸自螺紋孔74延伸。就此而言，固定空轉輪5〇 與石占頭48之間之相對位置1而，可藉由轉動可調整硬止 擋件41之旋鈕84而調整滑桿72(包含砧頭48及空轉輪5〇)相 對於切割機刀頭46之位置，如參考圖4所論述。 圖4係圖3B之截面4_4處取得之可調整張力裝置52之橫截 面圖，其顯示用於將砧頭48及空轉輪50分別附接至可調整 張力裝置52之滑桿72之軸98及99。首先移除鎖定機構4〇及 軟止擋件39以組裝可調整張力裝置52。藉由將軸82螺合至 螺紋孔100中直至軸82之末端穿入狹槽73而安裝硬止擋件 41。夾具86係圍繞轴82而定位在末端附近以防止自外殼24 移除軸82。橢圓形葉片76係定位在與空轉孔78相鄰之橢圓 形狹槽101内，且滑桿72接著係插入至狹槽73中。如圖5中 所示，滑桿72(及端止擋件88)包含外伸特徵以防止滑桿72 側向脫離狹槽73。彈箐90係插入至狹槽73中以接合滑桿72 之端部處之孔102 »端帽88係經由面向彈簧9〇之孔1〇4而插 入至狹槽73中。緊固件92係插入穿過分別在端止擋件88及 外殼24中之對準孔106及108。孔106包含一埋頭孔以接收 緊固件92之一頭部使得蓋罩26可裝配至外殼24 β就此而 158778.doc 12 201219179 言’彈簧90係壓縮於孔102與孔l〇4之間。彈簧90係足夠長 或否則經定尺寸以在可調整硬止擋件41之螺紋軸8 2係完全 縮入孔100内時保持壓縮。即，彈簧9〇將維持滑桿72與緊 固件92末端之接合。基於切割機刀頭46之剃刀54之銳度及 砧頭48之輥子62之彈性（圖3 A)而選擇彈簧90之力以產生足 以切割纖維粗紗之力且無需推動剃刀54完全通過輥子62。 藉由首先圍繞螺紋軸94定位墊圈1 〇9且接著使螺紋軸94 插入穿過調整狹槽11〇並進入螺紋孔8〇而組裝鎖定機構 4〇。軸94將鎖定機構40緊固至滑桿72。狹槽11〇允許軸94 在外殼24内移動，同時滑桿72在狹槽73内移動。如圖4中 所描繪，狹槽110提供與滑桿72之線性移動相當之軸94之 上下移動，同時限制自圖4平面之移入及移出，如參考圖5 所ew述。墊圈1〇9覆蓋狹槽11〇且允許鎖定機構4〇抵著外殼 24滑動。墊圈109亦允許鎖定機構在操縱桿％被旋轉時牽引 /月才干72以使其與外设24側向接合，亦如參考圖5所論述。 軸98及99係分別插入穿過砧頭48及空轉輪5〇以完成切割 器12之組裝。軸98係插入穿過砧頭48中之一中心孔且螺合 至螺紋孔74中。緊固件66係附接至軸98以抵著滑桿緊固 砧頭48。類似地，軸99係插入穿過空轉輪％中之一 _心孔 且螺合至橢圓形葉片76中。緊固件係附接至軸99以抵著 滑桿72緊固空轉輪5〇。收緊軸的以使葉片顺空轉孔π接 合。橢圓形葉片76防止軸99之旋轉，同時擴圓形狹槽ι〇ι 之使用允許相對於軸99而調整軸在滑桿72上之位置。替代 地’可在將滑桿72插人至狹槽73中之前將軸98及99組裝至 158778.doc -13- 201219179 滑桿72。 在操縱桿96經定位以便鬆開墊圈1〇9與外殼24n & 合之後’滑桿72係、藉由彈簧9G之力及可調整硬止擋 固持在適當位1緊固件92將端⑽牢緊㈣在適當位置 使得彈簀90將滑桿推離端⑽。彈簀％在適合於待切割及 施配之纖維粗紗類型之—壓力或張力下將料48推入i切 割機刀頭46中。接著，旋紐84係收緊至孔⑽内之螺紋轴 82以接合滑桿72且防止刀片54進-步進入至輥子62中。最 後’旋轉鎖錢構4G之操縱桿96以防止滑桿72在切割器12 之操作期間移動。例如，刀片54將趨向於在旋轉期間將石占 頭48推離切割機刀頭46以壓縮彈菁9〇。另夕卜，螺紋轴可在 刀割器12之‘作期間自適當位置振動以導致彈脊％進—步 推動滑桿72。鎖定機構4〇防止滑㈣在此等事件 動。 圖5係圖3之截面5_5處取得之可調整張力裝置^之—端 橫截面圖，其顯示用於使滑桿72側向保持在滑動狹槽乃内 之外伸特徵U2。除外伸特徵112之外，狹槽73亦包括滑動 表面U4,同時滑桿72包含與外伸特徵ιΐ2配合之凸緣 ⑴。如所提及，滑桿72係沿線性方向插入至狹槽7”。 此外，硬止擋件41限制滑桿72線性移人至圓5之平面中， 同時軟止擋件39限制滑桿72自圓5之平面線性移出。滑動 表面滑桿72向右側向移動，同時凸緣ιΐ6與外伸特 徵⑴之接合限制向左側向移動。在所示實施例中，外伸 特徵U2使狹槽73呈—τ形輪廓。在其他實施例中，可使用 J58778.doc 201219179 其他形狀，諸如一鳩尾形狀或一樅樹形狀。 在鬆開鎖定裝置4G之後，滑桿72在狹槽73内沿滑動表面 由線度移動。藉此，在調整狹槽J J 〇内牵引鎖定機構 40之轴94。如參考®4所論述，狹槽11G允許軸94之此線性 移動，但限制轴94之上下移動（參考圖5)。然而，狹槽ιι〇 係經定尺寸以不抑制滑桿？2之鎖定機構之移動，因為㈣ 之最終移動係受限於滑桿72在狹槽73内之移動。當滑的 係移動至期望位置時，鎖定機構4〇之操縱桿96係旋轉至孔 8〇内之螺紋軸94，肖此側向牽弓丨滑桿72以使其與狹槽73之 ㈣表面U4接合且使滑桿72固定。墊圈⑽允許鎖定機構 抵者外喊2 4流暢旋轉。 本發月提供-種用於使―纖維粗紗切割器中之頭部旋轉 之調整系統。可藉由轉動定位在該切割器之-外部上之一 調整旋紐而手動設切割機刀頭與—簡之間之距離。 就此而言，在進行調整時無f拆卸該㈣器。 包含-偏壓彈著《在—預設覆力或張力下將料頭推= _割機刀頭中。就此而言’該切割器之一操作者在將該 石占頭移動至該切割機刀頭時不必靠得报近。在該偏壓彈簧 將該等頭部固持接合之後’該操作者可接合一外部啟動鎖 定機構以使該石占頭暫時固定且實現該切割器之操作。在該 切割器（其中該石占頭經屛-& ! _ 歷負面影響切斷纖維股線之長度之 降級)之操作之後，一操作者僅需在停止該切割器之摔作 之後釋放鎖定機構且鬆開調整旋紅以使該石占頭更靠近該切 割機刀頭。該偏壓彈簧確保適當刀片塵力抵著石占，藉此延 158778.doc -15- 201219179 長剃刀片之使用期限。可重新接合鎖定機構以恢復該 器之操作。 ° 雖然已參考一（若干）例示性實施例而描述本發明，但熟 習技術者應瞭解在不背離本發明之範鳴之情況下可作出各 種改變且等效物可替代本發明之元件。另外，可在不背離 本發明之基本範疇之情況下作出諸多修改以使一特定情形 或材料適合於本發明之教示。因此，意欲本發明不受限於 所揭不之該（等）特定實施例且本發明將包含落在附屬申請 專利範圍之範疇内之全部實施例。 【圖式簡單說明】 圖1係其中使用本發明之一可調整張力裝置之一液體喷 搶與一纖維粗紗切割器之總成之一分解圖。 圖2A係圖！之纖維粗紗切割器之一透視圖，其顯示可調 整張力裝置之一固定軟止擋件及—鎖定機構。 圖2B係圖1之纖維粗紗切割器之一後端視圖，其顯示可 5周整張力裝置之鎖定機構及一可調整硬止擋件。 圖3A係圖1之纖維粗紗切割器之一透視圖，其中已移除 一蓋罩以顯示一切割機刀頭、—站頭及一空轉輪。 圖3B係圖3A之纖維粗紗切割器之一透視圖，其中已移 除砧頭及空轉輪以顯示可調整張力裝置之一滑桿。 圖4係圖3B之截面4-4處取得之可調整張力裝置之一側橫 截面圖，其顯示用於將砧頭及空轉輪附接至可調整張力裝 置之滑桿之轴。 圖5係圖3B之截面5-5處取得之可調整張力裝置之一端橫 158778.doc -16- 201219179 截面圖，其顯示用於使滑桿保持在一滑動狹槽内之一外伸 特徵。 【主要元件符號說明】 10 喷槍 12 粗紗切割器 14 手柄 16 閥體 18 喷嘴 20 扳機 22 氣動馬達 24 外殼 24A 平坦切割器表面 24B 邊緣周邊 26 蓋罩 28 閥總成 30 空氣入口 31 入口 32 材料入口 34 觸媒入口 36 空氣出口 38 纖維入口 39 固定軟止擋件 40 鎖定機構 41 可調整硬止擋件 158778.doc - 17- 201219179 42 施配器滑槽 43A 緊固件 43B 緊固件 44 管件 45 旋鈕 46 切割機刀頭 48 石占頭 50 空轉輪 52 可調整張力裝置 54 刀片 55 管件 56 刀片匣 57 軸機構 58 間隔卷軸 60 固持帽 62 親子 64 固持帽 66 緊固件 68 輥子 70 緊固件 72 滑桿 73 狹槽 74 砧孔 76 橢圓形葉片 158778.doc - 18- 201219179 78 空轉孔 80 操縱桿孔 82 螺紋軸 84 旋紐 86 夾具 88 端止擋件/端帽 90 彈簧 92 緊固件 94 螺紋軸 96 操縱桿 98 軸 99 轴 100 螺紋孔 101 擴圓形葉片 102 104 孔 106 子L 108 子L 109 墊圈 110 調整狹槽 112 外伸特徵 114 滑動表面 116 凸緣 158778.doc -19201219179 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention generally relates to a cutter apparatus for dispensing a fibrous material into a flow of a resin material from a spray application. In particular, the invention relates to a device for controlling the tension between a rotary cutter head and a rotary anvil. The present application claims priority to US Provisional Application No. 61/382,069, entitled "ADJUSTABLE TENSIONING DEVICE", filed on September 13, 2010, by Jonathan R. McMichael, 35 Inventor § 120, and Corey D. Johnson. The full text of the case is incorporated by reference. This application claims to be based on PCT Application No. PCT/2010/ filed on November 23, 2010, by the inventors of the US-A-C. Priority is claimed to 003029, the entire contents of which is incorporated by reference. [Prior Art] Cutter is commonly used in the composites industry to form large shaped products, such as in the marine and marine industries and in the pool and spa industry. The cutter gun includes a fiber cutter and a liquid spray assembly. Typically, compressed air is supplied to power one of the pumping mechanisms and one of the fiber cutters in the jet cutter. The spray gun typically receives a liquid resin material and a liquid catalyst material. The actuation of one of the triggers causes the material to be dispensed into a mixing chamber before it is ejected from one of the nozzles of the gun. The mixing of the catalyst and the resin begins a solidification process, which is the result of the 158778.doc 201219179, which results in the complete solidification of the material - the rigid hard fiber fiber cutter is usually mounted on the spray top. The fiber cutter receives a roving of a fibrous material (such as glass) that travels between an idler, a station and a cutter head. The fiber roving is cut into small pieces between the anvil and the cutter head, and the fiber roving is pushed out from the cutter by the air motor rotating anvil and the cutter head. The segmentation of the fibers is mixed into the spray mixture of resin and catalyst such that the final cured product is fiber reinforced. The cutter head and anvil of the fiber cutter contain consumables that must be replaced after a threshold of wear. For example, a cutter head typically includes a plurality of razor blades' and the stone occupies one of the rollers comprising a soft material into which the razor blade penetrates while dividing or cutting the fiber roving. However, the performance of the fiber cutter is affected by the wear of consumables even before the razor blades and rollers need to be replaced. In particular, the 'razor blade' becomes dull and therefore cannot completely cut the fiber roving. The razor blade also degrades the anvil roll by effectively reducing the diameter of the anvil, which also results in incomplete cutting. There is no need to replace the razor blade or anvil roll, and the degradation performance of the fiber cutter can be temporarily improved by repositioning the anvil closer to the cutter blade. Previous technical designs often required disassembly of the cutter gun to perform these adjustments. The inconvenience of this operation usually leads to adjustments being ignored in practice. Other external actuating devices (such as those described in U.S. Patent No. 4, 935, 355 to Krohn et al., and U.S. Patent No. 3,155,320, to J. The tension. If not properly adjusted, these mechanisms can cause full cutting or rapid wear of the blade. Other automatic adjustment of the tensioning device requires a fine and complex mechanism that is prone to failure, such as the one described in U.S. Patent No. 5, 158, 778, issued to Frar. Therefore, the two actuating systems automatically adjust a fiber roving: a simple tension between the external and the station. BACKGROUND OF THE INVENTION The present invention is directed to a position for adjusting the position of a rotatable cutter head in a fiber roving cutter comprising a mounting plate, a slider, and an adjustable jaw. The tensioning device's '-locking device', the -th shaft, and the ab-cutting head. The ampule includes a flat surface 'head system' configured to rotate against the flat surface; and a slot ' disposed in the flat surface and extending from a first end to a second end a sliding surface. The slider is disposed within the slot and between the first end and the second end and is linearly displaceable along the sliding surface. The adjustable hard stop is disposed at the (four)-end of the slot to limit linear displacement of the slider. The fixed soft stop is disposed at the second end of the slot to bias the slider toward the adjustable hard stop. The locking device secures the slider within the slot. The first axis extends from the slider. The first cutter head is coupled to the first shaft. [Embodiment] Fig. 1 is an exploded view of an assembly of a liquid jet squeegee and a fiber roving cutter 2 in which a tensioning device of the present invention can be used. The fiber roving cutter i 2 which is slightly enlarged in comparison with the liquid spray i 0 is shown in the figure. The liquid spray 10 includes a two-component internal mixing with a handle 14, a valve body 16, a nozzle 18, and a trigger 20. The fiber roving cutter 12 includes a pneumatic motor 22, a housing 24, and a cover 26. The valve body 16 of the spray blast 10 includes a valve assembly 28, air inlet 158778.doc 201219179 port 30, material inlet 32, catalyst inlet 34, and air outlet %. The outer casing 24 of the fiber roving cutter 12 includes a fiber inlet 38' locking mechanism 4'', an adjustable hard stop 41, fasteners 43A and 43B, a knob 45, and the cover 26 includes a dispenser chute 42. In the illustrated embodiment ten, the spray gun 10 includes a two-component mixing that receives the two liquid components that are mixed as they are dispensed to produce a mixture of one of the hardened materials. The -th component comprises a resin material such as a polyester resin or a vinyl ester and is supplied into the valve body 16 via the material inlet 32. A _ component includes a catalyst material (such as methyl ethyl ketone peroxide (MEKP)) which causes the resin material to harden and is supplied to the valve body 6 via the catalyst inlet 34. Material inlet 32 and catalyst inlet 34 supply the respective materials to valves located within valve body 16 and to valve assembly 28. Gun 1 提 provides additional access to other fluids, such as a solvent. Actuation of the trigger 20 also causes the valve of the valve assembly 28 to open and cause pressurized components to flow into the nozzle 18. As shown, the sprayer includes an internal mixer in which the two components are pressurized at an inlet 32 and 34 by an external source (not shown) and are mixed within the tube 44 prior to entering the nozzle 18. . Pressurized air may also be provided to the nozzle 18 to shape or direct the mixed flow stream. In other embodiments, after the material is pressurized in the valve body 16 by an external source, such as a pump, the material mixes with the air from the inlet 31 on the outer side of the grab 10 and is atomized by a mixing nozzle. The pressurized air from the air inlet 30 is supplied through the valve body 丨 6 to an outlet 36 that is connected to an inlet (not shown) of the air motor 22 of the fiber cutter 12. A roving or strand of a fibrous material, such as glass fibers, is fed into the cover 26 through the fiber inlet 38. The gas caused by the actuation of the trigger 2 158778.doc 7- 201219179 The activation of the motor 22 causes an anvil mounted on the outer casing 24 to engage an idler wheel to draw the roving into a cutter head, as shown in the reference drawing. 3A and FIG. 3B are discussed in more detail. The lock mechanism 4' of the adjustable tensioning device 52 and the adjustable hard stop 41 are used to adjust the position of the anvil and the idler relative to the cutter head. The chopped roving section is discharged from the applicator chute 42 into a mixed flow of the resin material and the catalytic material from the nozzle 18 such that the hardened material contains a fiber reinforcing material which increases the strength of the finished product. After the blasting 10 and the fiber cutter 12 have been operated for a period of time, the cutting face of one of the blade of the cutter head and the anvil is worn' because the blade becomes dull due to the cutting of the roving and the cut surface is injured by the blade. However, prior to the need to replace such components, the anvil can be repositioned relative to the cutter blade to particularly re-align the blade of the cutter head into the depth of the cutting face of one of the anvils. The adjustable tensioning device of the present invention allows the station head to be repositioned with controls from the outer casing 24 and the outer side of the cover 26, while also automatically controlling the tension between the cutting blade and the cutting surface. 2A is a perspective view of a fiber roving cutter 12 of the circle 1 showing the fixed soft stop 39 and the locking mechanism 4 of the adjustable tensioning device 52. Figure (3) is a rear end view of the fiber roving cutter 12 of Figure 1, showing the locking mechanism 4 of the adjustable tensioning device 52 and the adjustable hard stop 41. Figure 3 is a perspective view of one of the fiber roving cutters 12 of Figure VIII, wherein the cover % has been removed to show the cutter head 46, the anvil 48 and the idler wheel 50. 3B is a perspective view of the fiber "upper cutter 12 of FIG. 3A with the anvil 48 and idler wheel 50 removed to show the slide bar 72 of the adjustable tensioning device 52. In this regard, the adjustable tensioning device 52 includes a fixed 158778.doc 201219179 soft stop 39, a locking mechanism 4〇 and an adjustable hard stop 41 coupled to the slide bar 72. 2A and 2B show the fiber roving cut The external components of the fiber roving cutter 12 are discussed with reference to FIGS. 2-8 and 2B. The operation of the fiber roving cutter 12 is illustrated in Figure 3A, which shows the internal components of the fiber'bumper, v-cutter 12 and with reference to Figure 3A and with reference to Figures 2 and 2B. The components of the adjustable tensioning device 52 are shown in Figure 3B and the components of the adjustable tensioning device 52 are discussed with reference to Figure 3B. The operation of the adjustable tensioning device 52 is discussed with reference to Figures 4 and 5. The fiber cutter 12 includes a pneumatic motor 22, a housing 24, a fiber inlet 38, a fixed soft stop 39, a locking mechanism 4, an adjustable hard stop 41, a dispenser π 曰 42 fasteners 43 Β and 43 Β, a rotary Button 45, adjustable tension device 52 and tube member 55. The cutter head 46 includes a blade ", a blade g56, a spacer spool 58 and a retaining cap 6". The anvil 48 includes a roller, a retaining cap, and a fastener 66. The idler wheel 5 includes a parent 68 and a fastener 7". 2A and 2B, the cover 26 includes a polyhedron having an opening with the outer cover 24 to cover the cutter head 46, the anvil and the idler wheel 50. The cover 26 includes an opening to allow The chopped roving from the cutter head 捻 is threaded through the cutter 12. The dispenser chute 42 is mounted to the cover 26 via fasteners 43 and 43 in the vicinity of the opening to receive the short from the cutter head 46. The roving chute 42 includes a trihedral gusset that passes along the plate after being cut by the cutter head assembly 46. The fastener 43 can be used to adjust the applicator chute 42 based on the fastener 43. The angle is to change the trajectory of the chopped roving section. The knob 45 extends into the cover 26 to engage the tubular member 55 (Fig. 3A) and to maintain the cover 26 in engagement with the outer casing 24. Referring to Fig. 3, the cutter head 46, the anvil Head 48 and idler 50 are mounted on 158778.doc 201219179 to rotate on peripheral 24 The outer casing 24 includes a plate to which the cutter head 46 and the anvil 48 are attached. The outer casing 24 includes a flat cutter surface 24A and an edge periphery 24B. In particular, the cutter head 46 is directly mounted. The shaft mechanism 57 (Fig. 2B) from the air motor 22 extends through the outer casing 24 to one of the drive shafts 60. The anvil 48 and the idler 5 are mounted to the outer casing 24. The shafts of the tensioning device 52 are adjusted. The fasteners 66 and 7 are generally screwed into the shaft to hold the anvil 48 and the idler pulley 5, respectively. The adjustable tensioning device 52 includes a slider (Fig. 3B) that extends to One of the outer casings 24 between the adjustable hard stop 41 and the fixed soft stop 39 corresponds to a slot (Fig. 3B). One of the springs of the fixed soft stop 39 causes the slider to automatically deviate from the fixed soft stop 39. The station head is pushed at a suitable pressure to contact the cutter head 46 to cut the fiber roving. The idler wheel 50 is fixed relative to the anvil 48 at a position on the slide of the tensioning device 52 for 5 weeks. The movement of the slider of the adjustable tensioning device 52 causes the anvil 48 and the idler pulley 5 to move relative to the cutter head The adjustment of the adjustable hard stop 41 allows different sizes of the cutter head 46 to be used in the cutter 12. Additionally, the adjustment of the adjustable hard stop 41 allows the station 48 to be moved to compensate for the degradation of the roller 62. After adjustment by the adjustable hard stop 41, the locking mechanism 4 is used to lock the position of the slider. The air motor 22 rotates the cutter head 46 by rotating one of the shaft mechanisms 57 extending from the shaft mechanism 57 of the air motor 22. Engagement of the blade 54 with the roller 62 causes the anvil 48 to also rotate. The anvil 48 drives the rotation of the idler pulley 5 by engaging the roller 68. The rovings supplied to the fiber inlets 38 are taken by the station heads 48 and the idler wheels 50 and are drawn between the anvils 48 and the cutter heads. The blade 54 of the cutter head 46 is drawn into a roller 62 that includes a deformable material. When the blade 54 rotates the stone head 48 and cuts into the roller 62, the roving is cut into small pieces between the blade 54 and the roller 62 when I58778.doc •10·201219179. The spacer spool 58 maintains the blades 54 at equal intervals such that the fibers are uniformly cut to an approximate length. Blade 54 and roller 62 are worn and eventually need to be replaced to prevent unacceptable performance degradation of fiber cutter 12. For example, after removal of the cover 26, the retaining caps 64 and 60 are removed to allow the roller 62 and the blade raft 56 to slide out of their respective mounting shafts for maintenance. However, prior to authorizing this maintenance, the adjustable tensioning device 52 of the present invention can be used to position the stone head 48 advantageously closer to the cutter head 46 to cut the roving again at a desired depth. Figure 3B is a perspective view of one of the fiber roving cutters 12 of Figure 3A with the station head 48 and idler wheel 50 removed to show the slide bar 72 of the adjustable tension device 52 inserted into the slot 73. The slide bar 72 includes an anvil hole 74, an elliptical blade 76, an idle hole 78, and a lever hole 80. The adjustable tensioning device 52 includes an adjustable hard stop 41 positioned at one of the first ends of the slot 73 and a fixed soft stop 39 positioned at the second end of the slot. In this regard, the slot 73 extends between the hard stop 41 and the soft stop 39. The adjustable hard stop 41 includes a threaded shaft 82, a knob 84, and a clamp 86. The fixed soft stop 39 includes an end stop member 肫, a spring 90, and a fastener 92. The adjustable tensioning device 52 also includes a locking mechanism 40' that includes a shaft 94 and a lever %. The slide bar 72 is positioned between the adjustable hard stop "with the fixed soft stop 39" in the slot 73. The slide bar 72 is thus linearly movable between the shaft 82 and the end cap. The spring 90 is positioned in the direction of the end cap 88 and the slide bar 72. In other implementations of the invention, other == or materials (such as a deformable polymer stop) may be used in place of the spring 9〇. 158778.doc 201219179 The fastener 92 is threaded into the outer casing 24 such that the draw 82 of the hard stop (4) extends into the slot 73. The end of the shaft 82 limits the amount by which the ridge 9 推 can push the slip (four) into the narrow (four). The clamp 86 prevents the shaft 82 from rushing out of the outer casing 24. The T-axis 94 of the locking mechanism extends through the housing 24 to engage the threaded bore 8 of the slider 72. The lever 96 extends from the shaft 94 to effect rotation of the shaft 94. The elliptical leaves in the idler wheel 50 are extended from the elliptical leaves in the hollow hole 78. The other axis of the anvil 48 extends from the threaded bore 74. In this regard, the relative position 1 between the fixed idler 5 〇 and the stone occupant 48 can be adjusted by rotating the knob 84 of the adjustable hard stop 41 (including the anvil 48 and idling) The position of the wheel 5) relative to the cutter head 46 is as discussed with reference to FIG. 4 is a cross-sectional view of the adjustable tensioning device 52 taken at section 4_4 of FIG. 3B showing the shaft 98 for attaching the anvil 48 and the idler wheel 50 to the slide bar 72 of the adjustable tensioning device 52, respectively. And 99. The locking mechanism 4A and the soft stop 39 are first removed to assemble the adjustable tensioning device 52. The hard stop 41 is mounted by screwing the shaft 82 into the threaded hole 100 until the end of the shaft 82 penetrates the slot 73. A clamp 86 is positioned about the shaft 82 near the end to prevent removal of the shaft 82 from the outer casing 24. The elliptical vane 76 is positioned within the elliptical slot 101 adjacent the idler bore 78 and the slide bar 72 is then inserted into the slot 73. As shown in Figure 5, the slider 72 (and the end stop 88) includes an overhanging feature to prevent the slider 72 from laterally disengaging the slot 73. The magazine 90 is inserted into the slot 73 to engage the hole 102 at the end of the slider 72. The end cap 88 is inserted into the slot 73 via the hole 1〇4 facing the spring 9〇. Fasteners 92 are inserted through alignment holes 106 and 108 in end stop 88 and outer casing 24, respectively. The aperture 106 includes a counterbore to receive one of the heads of the fastener 92 such that the cover 26 can be assembled to the outer casing 24[beta]. 158778.doc 12 201219179 The spring 90 is compressed between the aperture 102 and the aperture 104. The spring 90 is sufficiently long or otherwise sized to maintain compression when the threaded shaft 8 2 of the adjustable hard stop 41 is fully retracted into the bore 100. That is, the spring 9 will maintain engagement of the slider 72 with the end of the fastener 92. The force of the spring 90 is selected based on the sharpness of the razor 54 of the cutter head 46 and the elasticity of the roller 62 of the anvil 48 (Fig. 3A) to create the force sufficient to cut the fiber roving without pushing the razor 54 completely through the roller 62. The locking mechanism 4〇 is assembled by first positioning the washer 1 〇 9 around the threaded shaft 94 and then inserting the threaded shaft 94 through the adjustment slot 11〇 and into the threaded bore 8〇. The shaft 94 secures the locking mechanism 40 to the slide bar 72. The slot 11 〇 allows the shaft 94 to move within the outer casing 24 while the slide bar 72 moves within the slot 73. As depicted in Figure 4, the slot 110 provides up and down movement of the shaft 94 that is comparable to the linear movement of the slider 72 while limiting the movement in and out of the plane of Figure 4, as described with reference to Figure 5. The washer 1〇9 covers the slot 11〇 and allows the locking mechanism 4 to slide against the outer casing 24. The washer 109 also allows the locking mechanism to pull the lug 72 when the lever % is rotated to laterally engage the peripheral 24, as also discussed with reference to FIG. The shafts 98 and 99 are inserted through the anvil 48 and the idler pulley 5, respectively, to complete the assembly of the cutter 12. The shaft 98 is inserted through a central bore in the anvil 48 and screwed into the threaded bore 74. A fastener 66 is attached to the shaft 98 to secure the anvil 48 against the slide bar. Similarly, the shaft 99 is inserted through one of the idler wheels _ core holes and screwed into the elliptical blades 76. A fastener is attached to the shaft 99 to secure the idler 5 抵 against the slide bar 72. The shaft is tightened so that the blades are slid into the hole π. The elliptical vane 76 prevents rotation of the shaft 99, while the use of the expanded circular slot ιι ι allows the position of the shaft on the slide bar 72 to be adjusted relative to the shaft 99. Alternatively, the shafts 98 and 99 can be assembled to the 158778.doc -13 - 201219179 slide bar 72 prior to insertion of the slide bar 72 into the slot 73. After the lever 96 is positioned to release the washer 1〇9 and the outer casing 24n & the slider 7 is fastened by the force of the spring 9G and the adjustable hard stop is held in the appropriate position 1 fastener 92 to secure the end (10) Tight (four) causes the magazine 90 to push the slider away from the end (10) in place. The magazine % pushes the material 48 into the i-cutting cutter head 46 under pressure or tension suitable for the type of fiber roving to be cut and dispensed. Next, the knob 84 is tightened to the threaded shaft 82 in the bore (10) to engage the slide bar 72 and prevent the blade 54 from entering the roller 62. Finally, the joystick 96 of the 4G is rotated to prevent the slider 72 from moving during operation of the cutter 12. For example, the blade 54 will tend to push the stone head 48 away from the cutter head 46 during rotation to compress the cartridge 9 〇. In addition, the threaded shaft can be vibrated from the appropriate position during the "cutting of the cutter 12" to cause the ridge to advance to the slider 72. The locking mechanism 4 prevents slipping (4) during such events. Figure 5 is an end cross-sectional view of the adjustable tensioning device taken at section 5_5 of Figure 3 showing the outwardly extending feature U2 for retaining the slider 72 laterally within the sliding slot. In addition to the extension feature 112, the slot 73 also includes a sliding surface U4, while the slider 72 includes a flange (1) that mates with the overhanging feature ι2. As mentioned, the slide bar 72 is inserted into the slot 7" in a linear direction. Further, the hard stop 41 limits the linear movement of the slide bar 72 into the plane of the circle 5, while the soft stop 39 limits the slide bar 72. The plane is linearly removed from the plane of the circle 5. The sliding surface slider 72 is moved to the right while the engagement of the flange ΐ6 with the overhanging feature (1) restricts movement to the left. In the illustrated embodiment, the overhanging feature U2 causes the slot 73 In other embodiments, other shapes of J58778.doc 201219179 may be used, such as a dovetail shape or a eucalyptus shape. After the locking device 4G is released, the slide bar 72 follows the sliding surface within the slot 73. Movement by the linearity. Thereby, the shaft 94 of the locking mechanism 40 is pulled within the adjustment slot JJ. As discussed with reference to the reference 4, the slot 11G allows this linear movement of the shaft 94, but limits the movement of the shaft 94 up and down (Reference) Figure 5). However, the slot is sized to not inhibit the movement of the locking mechanism of the slider 2, since the final movement of (4) is limited by the movement of the slider 72 within the slot 73. When the system is moved to the desired position, the locking mechanism of the locking mechanism 4 is rotated. To the threaded shaft 94 in the bore 8 ,, the slide lever 72 is laterally pulled to engage the (4) surface U4 of the slot 73 and the slide bar 72 is fixed. The washer (10) allows the lock mechanism to shout outside the door 2 4 Smooth rotation. This month provides an adjustment system for rotating the head in the fiber roving cutter. The cutter can be manually set by rotating the positioning knob on one of the outside of the cutter. The distance between the head and the simplification. In this regard, there is no f to disassemble the (4) device when making adjustments. Included-biased "Pushing the head under the preset force or tension = _ cutter head In this regard, 'one of the cutters does not have to be close when moving the stone head to the cutter head. After the biasing spring holds the heads engaged, the operator An external actuating locking mechanism can be engaged to temporarily fix the stone head and effect the operation of the cutter. In the cutter (where the stone takes the lead -&! _ calendar negatively affects the length of the fiber strand After the operation of the downgrade), an operator only needs to stop after the cutter is stopped. Locking mechanism and loosening adjustment knob to bring the stone head closer to the cutter head. The bias spring ensures proper blade dust force against the stone, thereby extending 158778.doc -15- 201219179 long razor blade The term of use may be re-engaged to restore the operation of the device. ° While the invention has been described with reference to one (sever) of the exemplary embodiments, those skilled in the art will appreciate that the invention may be practiced without departing from the invention. Various changes may be made and equivalents may be substituted for the elements of the present invention. Further, many modifications may be made to adapt a particular situation or material to the teachings of the present invention without departing from the basic scope of the invention. The invention is not limited to the specific embodiments, and the invention is intended to cover all embodiments within the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded view of an assembly of a liquid squirt and a fiber roving cutter in which one of the adjustable tension devices of the present invention is used. Figure 2A is a diagram! A perspective view of a fiber roving cutter showing one of the adjustable tensioning devices and a locking mechanism. Figure 2B is a rear end view of the fiber roving cutter of Figure 1 showing the locking mechanism for a five-week tensioning device and an adjustable hard stop. Figure 3A is a perspective view of one of the fiber roving cutters of Figure 1 with a cover removed to reveal a cutter head, a station head and an idler. Figure 3B is a perspective view of one of the fiber roving cutters of Figure 3A with the anvil and idler removed to show one of the adjustable tensioning devices. Figure 4 is a side cross-sectional view of one of the adjustable tensioning devices taken at section 4-4 of Figure 3B showing the shaft for attaching the anvil and idler to the slider of the adjustable tensioning device. Figure 5 is a cross-sectional view of one of the adjustable tensioning devices taken at section 5-5 of Figure 3B, 158778.doc -16 - 201219179, showing an overhanging feature for retaining the slider in a sliding slot. [Main component symbol description] 10 Spray gun 12 Roving cutter 14 Handle 16 Body 18 Nozzle 20 Trigger 22 Air motor 24 Housing 24A Flat cutter surface 24B Edge perimeter 26 Cover 28 Valve assembly 30 Air inlet 31 Entrance 32 Material inlet 34 Catalyst inlet 36 Air outlet 38 Fiber inlet 39 Fixed soft stop 40 Locking mechanism 41 Adjustable hard stop 158778.doc - 17- 201219179 42 Dispenser chute 43A Fastener 43B Fastener 44 Fitting 45 Knob 46 Cutting Machine head 48 Stone head 50 Air wheel 52 Adjustable tension device 54 Blade 55 Pipe 56 Blade 匣 57 Shaft mechanism 58 Spacer 60 Retaining cap 62 Parent-child 64 Retaining cap 66 Fastener 68 Roller 70 Fastener 72 Slider 73 Narrow Slot 74 Anvil hole 76 Elliptical blade 158778.doc - 18- 201219179 78 Slot hole 80 Joystick hole 82 Threaded shaft 84 Knob 86 Clamp 88 End stop / end cap 90 Spring 92 Fastener 94 Threaded shaft 96 Joystick 98 Axis 99 Axis 100 Threaded hole 101 Expanded round blade 102 104 Hole 106 Sub L 108 Sub L 109 Pad Ring 110 adjustment slot 112 overhang feature 114 sliding surface 116 flange 158778.doc -19