1278292 坎、發明說明： t 相關美申請u * 2002年〇5月23日提出之6〇/382,316號美國暫時申請案之 權益係依35 U.S.C. § 119(e)而主張。 HJUiA之技術領域】 本發明大致上關於例如背包、組合包、實用包、文件袋 、公文袋、公事包及類似的行李。特別的是，本發明關於 具有音響組件、能輕易配置及收放的背包。 Γ先前技输1 背包及其它型式的行李係習知的技藝。人們通常使用背 包攜帶諸如衣物、書籍、工具及運動器材。人們也使用背 包運送諸如可攜式小型碟片放影機或行動電話的可攜式電 子裝置，且通常在穿戴其背包時操作這些電子裝置。例如 ，人們可收聽連接在其背包所儲放可攜式小型碟片放影機的 耳機，或者使用一組合耳機及麥克風裝置（通常稱為“耳球，，） 與其背部儲存的行動電話交談。然而，當這些可攜式電子 裝置放在背包内時，由於線路糾纏、控制受限及其它不便 等因素，其將難以舒適的收聽及操作。所以，需要的背包 及其它型式行李所具有的音響組件能易於存取及操作，以 及易於配置及收放的技藝。 Γ發明内容1 本發明關於一種行李袋，這個行李袋包括一個袋子、至 少一個與该袋相連的耳機，以及一條連接該耳機與電子裝 置的線路。該行李袋也包括一個選擇性在收縮位置及伸展 85645 1278292 位置間移動該線路的收縮機構。該線路可保持在延伸及/或 收縮位置。如一實施例，該線路也連接到電子裝置的耳機 (例如，在這情形耳機係一“耳球，，）。 該行李袋可包括至少一條連接該袋的肩帶，其中這條線 路延伸通過肩帶的至少一部份。該收縮機構也可包括一個 鉦於该肩帶上的收縮構件。如一實施例，這個收縮構件可 相對孩肩帶滑動。如另一實施例，此收縮構件可相對肩帶 旋轉。控制器也可提供在肩帶上，以調整電子裝置的音量 或其它功能。 如本發明内容，該袋可包括一個攜帶所將運送項目的第 一隔層，以及一個攜帶電子裝置的第二隔層。較佳地，該 苐一隔層可輕易地通過袋子的一層表層到達。 如本發明的另一實施例，這個收縮機構的操作可自動收 縮該線路至收縮位置。例如，該收縮機構可包括一個按鈕 、及壓下這個按鈕可使線路自動縮回至收縮位置。壓下該 按键可使得該線路沿著與該收縮裝置相連的線軸纏：。： 伸該線路朝向該移伸位置可壓縮一與線軸相連的彈箬。至 少一掣子與該線軸㈣，其中該掣予與線轴接合，:及= 該線路朝向該伸展位置延伸時防止彈簧減壓。按下該按I 可導致掣子與線軸分開，藉此使該彈簧減壓。 參考圖1及2，如本發明行李袋的圖示警 M不貫她例係如背包10 所π。雖然本發明參考一個背包作為說 久衣TF，但本發 明可使用於任何型式習知技藝的‘行李， 例如，帆布袋、公 85645 1278292 事包、電腦袋、皮包及文件袋等。 背包10包括一個袋子12，袋中可包括一個或多個攜帶所 將運送項目的隔層。袋子12可由尼龍、聚合體、棉、皮革 、羊皮，或者習知技藝的任何其它適合材料製成。背包i 〇 也包括一個或多個帶子14。在圖所示實施例中，背包 10包括一條連接至袋子12的肩帶14，以及容許一使用者使 用一條或兩條肩帶攜帶背包10。帶子14可由尼龍、聚合體 、棉、皮革、羊皮，或者任何適合的材料，經填塞或未填 塞方式製成。 再次參考圖1及2，背包10可具備一個或多個耳機16。如 内文所使用，“耳機”或“數個耳機，，指的是耳機、耳球、頭戴 耳機、助聽器，或任何其它可穿戴在使用者頭丨，或沿著 使用者耳朵穿戴的裝置，以產生聲音。耳機16可透過線路 20連接至一個儲存在袋12内的可攜式電子裝置18(如圖！及2 的虛、、泉所7F )。適合的電子裝置包括，但不限制，—無線電 收曰機、身聽、小型碟片播放機、MP3播放機、行動電話 、雙聲道收音機、或習知技藝的其它型式可攜式電子裝置 個或數個耳機16也可包括一個麥克風（可整合至耳機16 、連接至耳機16，或以其它方式與耳機16相連），這樣耳機 16可透過行動電話、雙向收音機、或其它通信裝置通信。 耳機/麥克風所組合的一實施例係俗稱的一個“耳球，，。 如圖1及2所不，線路2〇將耳機16連接至可攜式電子裝置 乂及傳送電子裝置1 8及耳機1 6間的信號。在所圖示的 實施例中’、線路20延伸進入電子裝置的隔層12Α内，此隔層 85645 1278292 12A的結構及尺寸能握持可攜式電子裝置18。線路2〇可至少 部份通過帶子14中所界定的一個通道（如圖！及2中的虛線所 示）以及進入袋子12的一個或多個隔層。該通道可在多層帶 子中提供於兩個或多層材料間的帶子14中，或可形成（例如 切割或壓模）成為一卓層或實心層，儘管如此，習於此技者 能瞭解，提供通遒的其它方法也能符合本發明的範圍。 線路20可選擇性地在一個收縮位置（如圖}所示）及一個伸 展位置（如圖2所示）之間移動。如此，使用者可延長耳機j 6 至該伸展位置，以便聽其聲音；以及在不使用時可方便移 動耳機16至儲存的收縮位置。耳機16也可維持一個或多個 在該收縮位置及伸展位置間的中間位置。 參考圖3，其表示一個包括收縮機構22的帶子14的圖示實 施例。收縮機構22可用以選擇移動該伸展位置及收縮位置 間的線路20。收縮機構22包括可相對於帶子14移動的收縮 構件24。在圖示實施例中，收縮構件24可沿著一條軌道％ 相對於帶子14滑動。帶子14也可包括一個閉合件28(為圖示 目的在圖3表為一個橡膠蓋），當在收縮位置時，用於至少 部份蓋著耳機1_6。為了從圖3所示的收縮位置移動線路別及 耳機16 土 3伸展位置，使用者能抓住耳機1 6，將其從帶子 14拉至一個所要的位置。為收縮線路2〇及耳機“回到該收 縮位置（或者伸展位置及收縮位置間的任何位置），該使用者 能移動收縮構件24回到圖3所示的位置，其將線路2〇收縮回 到帶子14内，以及將耳機16移入閉合件28中。 再回到圖3，背包10可具備一個操作可攜式電子裝置18各 85645 1278292 種力此的fe制為3 Ο ’諸如調整耳機丨6音量或控制電子裝置 1 8的功此（例如’改變收音機上的站台，啟動及停止CD播放 機的運轉’撥行動電話等等）。在圖3的圖示實施例中，控制 备30夾在其形成帶子14的兩層材料中間。控制器3〇可變換 製1，子14中，或利用黏合、缝製或習知技藝的任何其它 連接方法連接至帶子14。雖然控制器3〇位於圖3中帶子14上 另方面其也能提供於背包1 〇其它部份上，諸如袋丨2上 或袋内。 參考圖4，其詳細表示一收縮機構22的實施例。收縮機構 2、2可包括一個王體32 ’藉以界定能使收縮構件^滑入的軌 ^ 26收鈿構件24可包括一個與該線路20相連的第一部份 3 4 及一個由使用者操作在軌道26中滑動收縮構件24的第 崢6 36。收縮構件24也可包括一個配置於該第一部份34 及第_ ρ卩伤3 6之間的中間部份3 8。中間部份3 8可位於軌道 %中，而以該第一部份34定位於主體32内，以及將第二部 份36定位於主體32的外部。這樣，線路2〇、第一部份“及 :間部份38可大致上隱藏在主體32内，而將該第二部份36 疋位於主體32外側上且可由使用者操作；然而，習於此技 者將知道及瞭解，許多收縮機構22的其它結構也是可行的 。第一部份34、第二部份36及中間部份38較隹的結構及尺 寸此使收％構件24在軌道26中滑動，但這樣的收縮構件24 不能輕易地由執道2 6中脫落。 再次參考圖4，線路20與該第一部份34相連，而以一第一 自由端20Α從主體32向外延伸通過開口 4〇且連接至耳機16 85645 Ϊ278292 ，以及以一第二自由端20B延伸通過帶子且進入袋12内，藉 以連接電子裝置1 8。如圖4所示，線路2〇可圍繞收縮構件24 的第一部份34，且以可滑動方式配置在凹槽41内，在此情 形，收縮構件24的操作如同一滑輪，以改變第一自由端2〇A 及第二自由端20B的相對長度。然而，習於此技者將知道及 瞭解，有許多其它方式使線路2 〇與第一部份3 4相連。例如 ’線路2 0可藉由例如黏合、鑽孔、裝訂、缝製或習知技藝 的其它連接方法連接至第一部份34。一卡箍43可選擇性地 與開口40相連，以提供阻力以防線路2〇移動通過開口 4〇。 在圖4所示實施例中，卡箍43係一緊鄰開口 4〇定位的橡膠構 件，儘管其它結構也是可行的。 在軌道26中移動收縮構件24可調整線路2〇從帶子14通過 開口 40(在此稱為“曝露邵份42’，）的數量。儘量朝向軌道26第 一端26A移動的收縮構件24可收縮線路2〇至一收縮位置。在 該收縮位置中，曝露部份42較佳具有一相當短的長度，這 樣耳機16能接近帶子14夾持；然而，線路2〇及/或收縮機構 22對於曝露部份42的尺寸及結構（例如，改變軌道％的長度） ，在收縮位置可具有所想要的長度。朝向執道26第二端26B 移動的收縮構件24將線路20推過開口4〇，且藉此增加曝露 位置42的長度。或者或另外的，使用者能抓住耳機】6，以 及由帶子14拉開，並以手延伸線路2〇通過開口 4〇。當收縮 構件24儘量朝向軌道26的第二端26B移動時，線路2〇位於該 伸展位置中。在該伸展位置時，曝露部份42較佳具有一個 長度能充份使耳機16穿戴在使用者頭上或耳朵上。當收縮 85645 -11 - 1278292 構件24位於軌道26的第一端24A及第二端26B之間，線路2〇 將位於一個中間位置。習於此技者將知道及瞭解，線路2〇 可位於該收縮位置及伸展位置間任何數目的中間位置。 由收縮機構2 2提供的曝露位置4 2的加長或縮短，容許線 路2 0保持在該伸展位置。也就是說，線路2 〇大致上維持在 該伸展位置’除非某些外力（例如使用者施加的力）施加在耳 機16、線路20或收縮機構22，將線路2〇移至該收縮位置或 中間位置中的一個。同樣地，線路2〇可維持在各個中間位 置及該收縮位置。這樣，使用者可使用收縮機構22選擇性 將線路2 0 (例如調整曝露位置4 2的長度）相對於背包1 〇定位 ’且線路2 0將大致上維持在該位置。此線路2 〇的保留可進 一步例如由收縮機構24及軌道26間的磨擦，及/或線路20及 卡箍43間的磨擦輔助。 參考圖5，帶子14及收縮機構22以橫截面方式表示。在所 圖示的實施例中，收縮機構22配置於第一材料層44及第二 材料層46間’然而，本發明不限予任何特定的帶子i4結構 。這樣’收縮機構22可經變換方式連接至一單層的帶子（例 如，利用壓模、黏合’或缝製方式），或者可連接至一條具 有習知技藝的任何型式結構的帶子。第一層44開放式泡棉 、封閉式泡棉、橡膠、凝膠、纖維，或習知技藝的任何其 匕適合帶狀材料，且第二層46可為尼龍、聚合體、棉、皮 革羊皮’或習知技藝的其它適合的表皮材料。 重新參考圖5，帶子丨4可具備一個凹槽48，藉以容納收縮 機構22以及提供一個低度構型的帶子1 4。在該實施例中， 85645 -12- 1278292 如圖5所示，凹槽48提供认筮 » ., ^ 权仏万；罘一層44中，儘管其它位置為可 行。凹槽48可由習知技藝 N 版万法形成，包括但不限 制，如壓模、切割、恭私4糾、 田射切割、或熱形成等方式。帶子1 4 也可具備一選擇性面板5 〇，並 其可至少邵份配置於收縮機構 22及第二層46間。雖狹位认册 举…、仏於τ子14上的收縮機構22如内文 表示及說明，但本發明不限制收縮機構22位於任何特定的 位置。因A，收縮機構22可位於背包1〇的任何地方，包括 袋12内或袋上。 參考圖6,其表示一收縮機構的變換實施例。如本督施例 ，收縮機構60包括—個可相對於帶子14旋轉的收縮構㈣ ，藉以移動該伸展位置及收縮位置間的線路2〇。收縮機構 也可G括、泉軸64(如圖6虛線所示），當收縮機構62旋轉 時、、泉路20犯/α其繞上或繞下。收縮構件62及/或線軸64可 利用習知技蟄，例如輪軸或螺桿延伸通過帶子14，旋轉連 接至帶子14。另外，線軸64可隱藏在帶子14(例如，央在兩 層或數層材料内），或可位於帶子14外部可看見的地方。 就圖6所π收縮機構6〇的圖示實施例而言，收縮機構62以 一個第一方向（例如順時針）旋轉，將使得線路2〇纏繞線軸64 ，且因此將減少線路20曝露部份42的長度。當收縮機構62 在第一方向充份旋轉時，線路2〇移入該收縮位置。以一個 第二、相反方向（例如逆時針）旋轉收縮構件62，將使得線路 2〇從線軸64繞下以及增加該曝露部份42的長度。這樣，收 縮機構62在該第二方向的旋轉使線路2〇移入該伸展位置。 或者或另外地’使用者能抓取耳機16且將帶子14拉開，並 85645 -13- 1278292 用手將線路2 0朝向該伸展 、eB 甲展仏置延長。收縮機構60也能用以 峻擇將線路2 0定位於一徊 ^ ^ 、個或多個中間位置中。收縮機構60 ^上所紂顺相對於收縮機構22，將線路20保留在收縮 么置、伸展位置，或一個或多個中間位置。 多考圖7其表不一線路20的實施例。線路2〇可選擇性地 匕括插座66 ’其結構及尺寸可使線路2〇與電子裝置以連 、、及刀離插座66的選擇係取決於特定型式的電子裝置j 8 及其所使用的耳機，也可為習知技藝的一般插座。再者， 線路2〇可為在電子裝置間傳送信號、電力等習知技藝任何 型式的線管。如圖7所示，控制器3〇可連接至插座66及耳機 16間的線路2 〇。 參考圖8，其表示一個袋子12的圖示實施例。袋子12可包 括一背壁層70及-前壁層72，以及第—及第二侧壁層74、 76。袋子12也可包括一個攜帶所將運送項目的第一隔層78 及‘ T私子裝置1 8的第二隔層8 0。然而，習知技藝者 將知道及瞭解，袋子12可具有許多壁層及/或隔層。為能便 利通達電子裝置18，第二隔層8〇可經由其中一侧壁層以、 76而進入。舉例來說，第二隔層8〇可具一條拉鍊或維可牢 開口，其可通過侧壁層74、76之一打開。此外，第二隔層 80可經填塞處理來保護電子裝置18，以防撞擊等的損壞。 習知的任何一般填塞技術可用以填塞第二隔層8〇。 重新參考圖8，袋子12也可包括一個容納及裝載電子裝置 的可和動式小袋8 2。一條電線8 4可延伸通過小袋8 2及袋 子12之間，以連接小袋12至第二隔層8〇。電線以的長度較 85645 -14- 1278292 佳能充份容許小袋82能從第二隔層8Q移除，藉此通達電子 衣置1 8(例如更換CE)播放機中小型碟片），但儘可能短到 保持小袋82(及其中裝有電子裝置18)緊靠第二隔層.小袋 82的至少一邯份可由半透明或透明的、柔軟材料製成，藉 以容許使用者在位於小袋82内時，操控電子裝㈣（例如操 作包子I置1 8上的按赵或控制鍵）。小袋及電線μ可充擔 一種安全特性，以防電子裝置18不慎掉落及損壞。如本發 明實施例，電線84實質上具有彈性，如同一條鬆緊繩。 參考圖9,其表示如本發明背包的一第二實施例。背包1〇〇 類似於背包10的結構，如圖！至8的上述說明，除了背包1〇〇 包括一個可由使用者操作的收縮機構1〇2，以自動收縮線路 104至收縮機構102。也就是說，使用者可將線路1〇4及/或耳 機106拉至一所想要的位置，其將使得線路1〇4由收縮機構 102延伸，及該收縮機構1〇2將維持線路1〇4在該伸展位置。 使用者可隨後操作收縮機構102，使其自動收縮線路1〇4回 到收縮位置。例如，這可藉由壓下與收縮機構1〇2相連的按 鍵108來完成，這將使得收縮機構ι〇2收縮線路丨料。如同上 述的背包10—般，收縮機構102可包括一條或多條帶子11() ，且收縮機構1 02可位於其中一條帶子π 〇上，然而，其它 位置也同樣可行。或者或以另外的方式，線路1〇4可延伸 通過其中一條帶子11 〇的至少一部份。如圖9所示，背包丨〇〇 可包括一個控制器112，其利用諸如調整耳機1〇6音量或控 制電子裝置（例如改變收音機的站台、啟動及停止CD播放 機上的播放、撥打行動電話，等等）的其它功能，操作可攜 85645 -15- 1278292 式電子裝置的各種功能。如所示的圖示實施例中，控制哭 112可從-條帶子11G中所形成的口袋114延伸，然而控制器 112可以習於此技者所熟知的任何許多方式與帶子HQ或 背包1〇〇的任何其它部份相連。例如，控制器112可供於袋 子Π 6内或袋子上。 參考圖9，其表示一種收縮機構1〇2、線路1〇4、耳機 及控制器Π2的圖示結構。背包1〇〇可包括一插座118、其可 充擔一個將收縮機構102、耳機1〇6及控制器112連接至電子 裝置（未表示）的中心介面。插座118可取決電子裝置與其所 使用耳機的特定型式來選擇，且可為習知技藝的任何_般 插座。 參考圖10及11，其表示收縮機構1〇2的圖示實施例。如上 述討論，收縮機構102可包括一按键1〇8，其係由使用者操 作，可將線路104由-個伸展位置自動收縮至該收縮位置。 如圖11及12的收縮機構丨〇2大致上包括一個主體丨2〇，此主體 izo支撐著一個線路104所纏繞的線軸ι22。一彈簧為圖 示目的可表示為一扭曲彈簧，其一端126與主體12〇接合， 且另一端128與_線軸122接合，這樣線軸122的旋轉以一預定 方向使彈簧124壓縮（例如，捲起收縮機構1〇2也可包括一 個可延伸通過線軸122的滑閥13〇。滑閥13〇較佳能相對於主 晚120固疋旋轉，但線軸122可沿著滑閥13〇旋轉。滑閥I” 及/或線軸122可分別具有接觸表面132、134，其通常可例 如利用彈黃136彼此相互偏壓。表面132、134可共同操作 的掣子或彼此相互作用的滑行台，在彈簧力136下，容許 85645 •16- 1278292 線抽⑴沿著滑闕130以一纟向，但非反方向旋轉。㈣13〇 的一部份，諸如頭部138，可位於按鈕1〇8下方，這樣壓下 彈黃108可將滑閥130下向移動，以抵抗彈簧〗36的力量， 以及使得表面132、134從彼此接觸移開。如圖n&i2所示 ，按鈕1 08可例如由橡膠的柔敕材料製成，然而其它結構 也同樣可行。 線軸122及/或彈簧124可改變方向，這樣朝向該伸展位置 延伸的線路丨04能使彈簧124壓縮，藉以產生彈簧124的恢復 力，使其以一個將收縮線路104的相反方向旋轉線軸122。 此外，在表面132、U4上的共同操作掣子或滑行台可改變 方向，以防止線軸122以相反方向（即將使線路1〇4收縮的方 向）旋轉。如此結構，當使用者將耳機1〇6及/或線路ι〇4拉向 個伸展位置時，線軸122的旋轉將產生一個彈簧丨24的恢 復力。然而’在表面132、134上掣子或料台間的合作將 防止線軸122的收縮線路104回到收縮位置。這樣，使用者 可延伸線路1〇4至一所要的中間或完全延伸的位置，且收縮 機構102將不希望將線路1〇4收回收縮位置。當使用者希望 收、、、倍、、泉路1 04時_ ’其能按下按鍵！ 〇8，接著壓下滑間^ 3〇，且 使得表面132、134上的掣子或滑行台由接觸移開，藉以容 ，午、、泉軸122在彈餐124的旋轉力下旋轉。此線軸122旋轉力將 使線路104纏繞線軸122以及回到收縮位置。依據使用者壓 下按键108的時間長短，線路1〇4能完全回到收縮位置，或 該收縮及完全伸展位置間的其它中間位置。這樣，收縮機 構102可用以延伸線路1〇4到所要的位置及維持線路ι〇4在 85645 -17- 1278292 诸如使用耳機106的位置中，且後續利用按键丨〇8自動收縮 、、泉路1 〇 4至该收縮位置及一中間位置。必須注意的是，圖 1 〇至1 2的收縮機構不限制於内文所述的特定構造，也不限 於按键的使用。反而，習知技藝的任何數目收縮機構能在 所使用，且可使用任何數目的處發器收縮該線路。例如， 一收縮機構可使用的線路在短的、快速的延伸後自動收縮 線路，諸如習知的技藝及通常用於例如真空吸塵器的裝置 中。 重新參考圖9，背包100包括一個袋子116，而袋中具有一 個或多個攜帶所將運送項目的隔層。袋子116也可包括一個 备納及承載電子裝置（未表示）的第一口袋142。一個容納該 私子裝置的小裊144可透過例如一條電線146與該第一口袋 142相連。小袋144及電線146可充擔一種安全特性，以防電 子裝置不慎掉洛或損壞。势早 N ^ 衣予116也可包括一個由第二電線 152連接並具一對摺15〇的筮— v罘一口衣14 8。對摺的結構可裝承 電子裝置的媒體（例如 |剂 。 土莱片、笔腦碟片、快閃記憶卡 、微驅動器、卡帶，箬签a ^ ^ 寺）。不過，習知技藝者將能知道及 瞭解’本發明不限於今 万、邊裊子或口袋的任何特定結構。 雖然本發明各種揭靈 路已經如上面所說明，但必須睁解， 該各種的特性能單一式W甘7 、嗯解 ^ /、任何組合方式使用。特別的是 ，該各種發明觀念不需逵 幵別〇疋 , 反 運问使用，且僅提供本發明一種觀 念時也不會達背本發明。 - 斤以，本發明不僅限制於内文所 指7F的特疋貫施例。 再者，必須瞭解的是，Μ 付6本务明精神及範圍的各種變 85645 -18- 1278292 ，本發 式的行 、組合 修正能 符合本 例。本 的參考 示在 中的弄 ::及修正能由習於有關本發明技藝者所想到。例如 明不限於任何特定型式的行李 例如 李，諸如公事包、η 吏用万“種型 爭G小仃李、可攜式電腦箱、公文帶 包、及習知技藝的任何並仑 ^ 仕仃具匕仃李。因此，所有權宜 於此技者從内文陳述的揭露輕易得到，但其須 發明的精神及範圍，且將包括本發明進一步的實施 發明範圍因此可定義為申請專利附屬項中所陳述者 【遷式簡簟諸u 實施方式連同附圖將能得到更佳瞭解，其中相同 編號表示相同的組件，如下： 圖1係一如本發明背包圖示實施例的透視圖，且表 收縮位置中的耳機； 圖2係一圖1背包的透視圖，且表示在一伸展位置 機； 圖3係一具有如本發明收縮機構之肩帶的圖示實施例透 視圖； 圖4係一圖3收縮機構的部份立體分解圖。 圖5係一圖3中沿著線v_V所取的肩帶及收縮機構的橫截 面圖； 圖6係一具有如本發明收縮機構的肩帶的圖示實施例透 視圖； 圖7係一如本發明線路及耳機的圖示實施例的前視圖； 圖8係一圖1袋子圖示實施例的透視圖； 圖9係一如本發明背包的第二圖示實施例的透視圖； 85645 -19- 1278292 圖10係一圖9背包的插座、音量控制器、收縮機構、耳機 及相連線路的透視圖； 圖11係一圖10收縮機構圖示實施例的前視圖；及 圖12係一圖11沿著線ΧΙΙ-ΧΙΙ所取的收縮機構的橫截面 圖。 【圖式代表符號說明】 10 ^ 100 背凹 12、 116 袋子 12Α 隔層 14、 116 帶子 16 > 106 耳機 18 電子裝置 20、 104 線路 20Α 第一自由端 20Β 第二自由端 η、 60 ^ 102 收縮機構 24 ^ 62 收縮構件 26 - 軌道 26Α 第一端 26Β 第二端 28 閉合件 30 - 112 控制器 32 > 120 主體 34 第一部份 85645 -20- 1278292 36 第二部份 38 中間部份 40 開口 41、 48 凹槽 42 曝露部份 43 卡箍 44 第一材料層 46 第二材料層 50 面板 64、 122 線車由 66 ^ 118 插座 70 後壁層 72 前壁層 74、 76 第一及第二侧壁層 78 第一隔層 80 第二隔層 82、 144 小袋 84、 146 - 電線 108 按键 114 口袋 124 > 136 彈簧 126 一端 128 另一端 130 滑閥 -21- 85645 1278292 132 、 134 接觸表面 138 頭端 142 第一口袋 148 第二口袋 150 對摺 152 第二電線 85645 -22-1278292 Kan, invention description: t related US application u * The interest in the US temporary application of 6〇/382,316 filed on May 23, 2002 is based on 35 U.S.C. § 119(e). TECHNICAL FIELD OF THE INVENTION The present invention generally relates to, for example, backpacks, combination bags, utility bags, document bags, briefcases, briefcases, and the like. In particular, the present invention relates to a backpack having an audio component that can be easily deployed and retracted. ΓThe previous technology lost 1 backpack and other types of luggage is a well-known skill. People usually carry bags such as clothing, books, tools and sports equipment. People also use backpacks to carry portable electronic devices such as portable compact disc players or mobile phones, and typically operate these electronic devices while wearing their backpacks. For example, one can listen to headphones connected to a portable compact disc player in their backpack, or use a combination of earphones and microphone devices (commonly referred to as "ear balls,") to talk to mobile phones stored on their backs. However, when these portable electronic devices are placed in a backpack, it will be difficult to listen and operate comfortably due to factors such as entanglement, limited control, and other inconveniences. Therefore, the required backpack and other types of luggage have sound. The assembly can be easily accessed and operated, and is easy to configure and retract. The present invention relates to a duffel bag including a bag, at least one earphone connected to the bag, and a connection to the earphone and The circuit of the electronic device. The duffel bag also includes a retraction mechanism that selectively moves the line between the retracted position and the extended position 85564 1278292. The line can be maintained in an extended and/or retracted position. As an embodiment, the line is also connected to An earphone of an electronic device (for example, in this case, the earphone is an "ear ball,"). The duffel bag can include at least one shoulder strap attached to the bag, wherein the line extends through at least a portion of the shoulder strap. The retraction mechanism can also include a constricting member that rests on the shoulder strap. As an embodiment, the constricting member is slidable relative to the shoulder strap. As another embodiment, the constricting member is rotatable relative to the shoulder strap. The controller can also be provided on the shoulder strap to adjust the volume or other functions of the electronic device. As in the context of the present invention, the bag may include a first compartment carrying the item to be transported and a second compartment carrying the electronic device. Preferably, the barrier layer is easily accessible through a layer of the bag. According to another embodiment of the invention, the operation of the retraction mechanism automatically shrinks the line to the retracted position. For example, the retraction mechanism can include a button and depressing the button to automatically retract the line to the retracted position. Pressing the button causes the line to be wrapped along the spool that is connected to the retraction device: : Extending the line toward the extended position compresses a magazine attached to the spool. At least one dice and the bobbin (four), wherein the dip is engaged with the bobbin: and = the spring is prevented from decompressing as the line extends toward the extended position. Pressing the button I causes the forceps to separate from the spool, thereby depressurizing the spring. Referring to Figures 1 and 2, the graphical representation of the duffel bag of the present invention is not consistent with her example, such as the backpack 10 π. Although the present invention is directed to a backpack as a vestige TF, the present invention can be used for any type of prior art ‘baggage, for example, canvas bags, bags 85645 1278292, computer bags, purses, and file bags. The backpack 10 includes a bag 12 that may include one or more compartments carrying items to be transported. The bag 12 can be made of nylon, polymer, cotton, leather, sheepskin, or any other suitable material of the art. The backpack i 〇 also includes one or more straps 14. In the illustrated embodiment, the backpack 10 includes a shoulder strap 14 that is coupled to the bag 12 and allows a user to carry the backpack 10 using one or two shoulder straps. The strap 14 can be made of nylon, polymer, cotton, leather, sheepskin, or any suitable material, either in a stuffed or unfilled manner. Referring again to Figures 1 and 2, the backpack 10 can be provided with one or more earphones 16. As used herein, "headphones" or "several earphones" refers to earphones, ear balls, headphones, hearing aids, or any other device that can be worn on the user's head or worn along the user's ear. To produce sound, the earphone 16 can be connected via line 20 to a portable electronic device 18 stored in the bag 12 (such as the virtual, spring 7F of Figure! and 2). Suitable electronic devices include, but are not limited to, - a radio transceiver, a listening player, a compact disc player, an MP3 player, a mobile phone, a two-channel radio, or other types of portable electronic devices of the prior art, or a plurality of headphones 16 may also include a A microphone (which can be integrated into the headset 16, connected to the headset 16, or otherwise connected to the headset 16) such that the headset 16 can communicate via a mobile phone, two-way radio, or other communication device. An embodiment of a headset/microphone combination Commonly known as an "earball,,. As shown in Figures 1 and 2, the line 2 connects the earphone 16 to the portable electronic device and transmits signals between the electronic device 18 and the earphone 16. In the illustrated embodiment, the line 20 extends into the compartment 12 of the electronic device. The spacer 85645 1278292 12A is constructed and sized to hold the portable electronic device 18. Line 2 can be at least partially passed through a channel defined in band 14 (shown in phantom in Figures! and 2) and into one or more compartments of bag 12. The channel may be provided in a multi-layer tape in the tape 14 between two or more layers of material, or may be formed (eg, cut or stamped) into a layer or a solid layer, although it will be appreciated by those skilled in the art that Other methods of overnight use are also within the scope of the invention. Line 20 is selectively moveable between a retracted position (shown in Figure) and an extended position (shown in Figure 2). Thus, the user can extend the headphone j 6 to the extended position to listen to the sound; and conveniently move the earphone 16 to the stored retracted position when not in use. The earphone 16 can also maintain one or more intermediate positions between the retracted position and the extended position. Referring to Figure 3, an illustrative embodiment of a strap 14 including a retraction mechanism 22 is shown. The retraction mechanism 22 can be used to selectively move the line 20 between the extended position and the retracted position. The retraction mechanism 22 includes a constriction member 24 that is movable relative to the strap 14. In the illustrated embodiment, the contracting member 24 is slidable relative to the strap 14 along a track %. The strap 14 can also include a closure member 28 (shown in Figure 3 as a rubber cover for purposes of illustration) that, when in the retracted position, is used to at least partially cover the earphone 1_6. In order to move the line and the headphone 16 soil 3 extended position from the retracted position shown in Fig. 3, the user can grasp the earphone 16 and pull it from the belt 14 to a desired position. To contract the line 2 and the earpiece "back to the retracted position (or any position between the extended position and the retracted position), the user can move the contracting member 24 back to the position shown in Figure 3, which retracts the line 2 Inside the strap 14, and moving the earphone 16 into the closure member 28. Returning to Figure 3, the backpack 10 can be provided with an operating portable electronic device 18 each 85645 1278292. The force is 3 Ο 'such as adjusting the headset 丨6 volume or control electronics 18 (such as 'change station on the radio, start and stop the operation of the CD player' dial phone, etc.). In the illustrated embodiment of Figure 3, control device 30 clip Between the two layers of material from which the strip 14 is formed, the controller 3 can be coupled to the belt 14, or joined to the belt 14 by any other joining method of bonding, sewing or conventional techniques. The strap 14 of Fig. 3 can alternatively be provided on other portions of the backpack 1 such as the pocket 2 or in the pocket. Referring to Figure 4, an embodiment of a retraction mechanism 22 is shown in detail. Shrinking mechanism 2, 2 Can include a king body 32 ' The yoke member 24 defining the rail member 26 that can be slid into the contracting member can include a first portion 34 connected to the line 20 and a second portion 6 of the sliding contracting member 24 operated by the user in the rail 26. 36. The constriction member 24 can also include an intermediate portion 38 disposed between the first portion 34 and the first _p injury 36. The intermediate portion 38 can be located in the track %, with the first The portion 34 is positioned within the body 32 and the second portion 36 is positioned externally of the body 32. Thus, the line 2, the first portion "and: the portion 38 can be substantially concealed within the body 32, and The second portion 36 is located on the outside of the body 32 and is operable by the user; however, it will be appreciated and appreciated by those skilled in the art that many other configurations of the retraction mechanism 22 are possible. The relatively shallow structure and dimensions of the first portion 34, the second portion 36 and the intermediate portion 38 cause the receiving member 24 to slide in the track 26, but such a contracting member 24 cannot be easily detached from the road 26. . Referring again to FIG. 4, line 20 is coupled to first portion 34 and extends outwardly from body 32 through a first free end 20Α through opening 4〇 and to earphone 16 85645 Ϊ 278292, and to a second free end 20B. Extending through the strap and into the pocket 12, thereby connecting the electronic device 18. As shown in Figure 4, the wire 2 turns around the first portion 34 of the shrink member 24 and is slidably disposed within the groove 41, in which case the operation of the shrink member 24 is the same pulley to change the first The relative length of the free end 2〇A and the second free end 20B. However, it will be appreciated and appreciated by those skilled in the art that there are many other ways to connect line 2 to first portion 34. For example, 'line 20' may be coupled to first portion 34 by other attachment means such as bonding, drilling, stapling, sewing, or conventional techniques. A collar 43 is selectively connectable to the opening 40 to provide resistance to prevent the line 2 from moving through the opening 4. In the embodiment shown in Figure 4, the clip 43 is a rubber member positioned adjacent the opening 4, although other configurations are possible. Moving the contracting member 24 in the track 26 can adjust the number of lines 2 from the belt 14 through the opening 40 (referred to herein as "exposure portion 42'). The contracting member 24 moving as far as possible toward the first end 26A of the track 26 can contract. The line 2 is folded to a retracted position. In the retracted position, the exposed portion 42 preferably has a relatively short length such that the earphone 16 can be gripped adjacent to the strap 14; however, the line 2 and/or the retracting mechanism 22 are exposed The size and configuration of the portion 42 (e.g., changing the length of the track %) may have a desired length in the retracted position. The contracting member 24 moving toward the second end 26B of the track 26 pushes the line 20 through the opening 4〇, Thereby, the length of the exposure position 42 is increased. Alternatively or additionally, the user can grasp the earphone 6 and pull it apart by the strap 14 and extend the wire 2 through the opening 4 手. When the contracting member 24 is oriented as far as possible to the track When the second end 26B of the movement 26 is moved, the line 2 is positioned in the extended position. In the extended position, the exposed portion 42 preferably has a length sufficient to allow the earphone 16 to be worn on the user's head or on the ear. 85645 -11 - 1278292 The member 24 is located between the first end 24A and the second end 26B of the track 26, and the line 2〇 will be located at an intermediate position. It will be understood and appreciated by those skilled in the art that the line 2 can be located in the retracted position and the extended position. Any number of intermediate positions between. The lengthening or shortening of the exposure position 4 2 provided by the retraction mechanism 22 allows the line 20 to remain in the extended position. That is, the line 2 〇 is substantially maintained in the extended position 'unless Some external force (such as the force applied by the user) is applied to the earphone 16, the line 20 or the retraction mechanism 22, and the line 2 is moved to one of the retracted position or the intermediate position. Similarly, the line 2〇 can be maintained at each intermediate position. And the retracted position. Thus, the user can selectively use the retraction mechanism 22 to selectively position the line 20 (e.g., adjust the length of the exposure position 4 2) relative to the backpack 1 ' and the line 20 will remain substantially at that position. The retention of line 2 can be further assisted, for example, by friction between the retraction mechanism 24 and the track 26, and/or by friction between the line 20 and the clamp 43. Referring to Figure 5, the strap 14 and the retraction mechanism 22 are transverse In the illustrated embodiment, the shrink mechanism 22 is disposed between the first material layer 44 and the second material layer 46. However, the present invention is not limited to any particular belt i4 structure. Thus the 'shrink mechanism 22 The tape can be interchangeably connected to a single layer (for example, by stamping, bonding, or sewing), or can be attached to a belt of any type having conventional techniques. The first layer 44 is open foam. Any of the closed foam, rubber, gel, fiber, or conventional techniques suitable for the strip material, and the second layer 46 may be nylon, polymer, cotton, leather sheepskin or other suitable techniques of the art. Skin material. Referring back to Figure 5, the strap 4 can be provided with a recess 48 for receiving the retraction mechanism 22 and for providing a strap 14 of a low profile. In this embodiment, 85645 -12- 1278292, as shown in Figure 5, the recess 48 provides a 筮 筮 »., ^ 仏 仏 罘; 罘 one layer 44, although other positions are achievable. The recesses 48 can be formed by conventional techniques, including but not limited to, stamping, cutting, singularity, field cutting, or heat forming. The strap 14 may also be provided with an optional panel 5 〇 and may be disposed at least between the shrink mechanism 22 and the second layer 46. Although the contraction mechanism 22 on the tweezers 14 is shown and described in the text, the present invention does not limit the retraction mechanism 22 to any particular position. Because of A, the retraction mechanism 22 can be located anywhere in the backpack 1 , including in or on the bag 12 . Referring to Figure 6, there is shown a modified embodiment of a retraction mechanism. As in the present embodiment, the retraction mechanism 60 includes a contraction (4) that is rotatable relative to the belt 14 to move the line 2 between the extended position and the retracted position. The contraction mechanism may also include a spring shaft 64 (shown by a broken line in Fig. 6). When the contraction mechanism 62 rotates, the spring path 20 commits/α turns around or around. The constricting member 62 and/or the spool 64 can be rotatably coupled to the strap 14 by conventional techniques, such as an axle or screw extending through the strap 14. Additionally, the spool 64 can be hidden in the strap 14 (e.g., within two or more layers of material) or can be located externally of the strap 14. With respect to the illustrated embodiment of the π-contraction mechanism 6A of Figure 6, the retraction mechanism 62 is rotated in a first direction (e.g., clockwise) that will cause the wire 2 to be wound around the spool 64, and thus will reduce the exposed portion of the wire 20. The length of 42. When the retraction mechanism 62 is fully rotated in the first direction, the line 2 is moved into the retracted position. Rotating the constricting member 62 in a second, opposite direction (e.g., counterclockwise) will cause the wire 2 turns around the spool 64 and increases the length of the exposed portion 42. Thus, rotation of the contraction mechanism 62 in the second direction causes the line 2 to move into the extended position. Alternatively or additionally, the user can grasp the earphone 16 and pull the strap 14 apart, and 85645 - 13 - 1278292 manually extend the line 20 toward the extension, the eB armor. The retraction mechanism 60 can also be used to position the line 20 in one or more intermediate positions. The retraction mechanism 60 is slid relative to the retraction mechanism 22 to retain the line 20 in a collapsed, extended position, or one or more intermediate positions. An example of a different line 20 is shown in FIG. The line 2 can optionally include a socket 66' which is structured and sized to allow the line 2 to be connected to the electronic device, and the choice of the knife away from the socket 66 depends on the particular type of electronic device j 8 and its use. Headphones can also be general sockets for conventional techniques. Further, the line 2 can be any type of wire tube that transmits a signal, power, or the like between electronic devices. As shown in Fig. 7, the controller 3 can be connected to the line 2 between the socket 66 and the earphone 16. Referring to Figure 8, an illustrative embodiment of a bag 12 is shown. The bag 12 can include a back wall layer 70 and a front wall layer 72, as well as first and second side wall layers 74, 76. The bag 12 can also include a first compartment 78 carrying the item to be transported and a second compartment 80 of the 'T-child device 18. However, it will be appreciated by those skilled in the art that the bag 12 can have many wall layers and/or compartments. In order to facilitate the electronic device 18, the second barrier layer 8 can be accessed via one of the sidewall layers. For example, the second barrier layer 8 can have a zipper or a Velcro opening that can be opened by one of the sidewall layers 74, 76. In addition, the second barrier layer 80 can be tamped to protect the electronic device 18 from damage such as impact. Any conventional packing technique can be used to fill the second compartment 8〇. Referring back to Figure 8, the bag 12 can also include a movable pouch 8 2 that houses and loads the electronic device. A wire 84 can extend between the pocket 8 2 and the pocket 12 to connect the pocket 12 to the second compartment 8〇. The length of the wire is more than 85645 -14 - 1278292. Canon can fully allow the pouch 82 to be removed from the second compartment 8Q, thereby accessing the electronic clothing set 18 (for example, replacing the CE) medium and small discs), but as much as possible Short enough to hold the pouch 82 (and the electronic device 18 therein) against the second compartment. At least one portion of the pouch 82 can be made of a translucent or transparent, soft material to allow the user to be in the pouch 82. , control the electronic device (4) (for example, press the Zhao or control button on the operation of the package I I set 1 8). The pouch and the wire μ can be filled with a safety feature to prevent the electronic device 18 from being accidentally dropped and damaged. In accordance with an embodiment of the invention, the wire 84 is substantially elastic, like a bungee cord. Referring to Figure 9, there is shown a second embodiment of a backpack as in the present invention. Backpack 1〇〇 Similar to the structure of the backpack 10, as shown! The above description of 8 includes, in addition to the backpack 1 包括 a contraction mechanism 1 〇 2 operable by the user to automatically contract the line 104 to the retraction mechanism 102. That is, the user can pull the line 1〇4 and/or the earphone 106 to a desired position, which will cause the line 1〇4 to be extended by the retraction mechanism 102, and the retraction mechanism 1〇2 will maintain the line 1 〇 4 is in this extended position. The user can then operate the retraction mechanism 102 to automatically retract the line 1〇4 to the retracted position. For example, this can be accomplished by depressing the button 108 associated with the retraction mechanism 1〇2, which will cause the contraction mechanism ι2 to contract the line. As with the backpack 10 described above, the retraction mechanism 102 can include one or more straps 11(), and the retraction mechanism 102 can be located on one of the straps π ,, however, other positions are equally feasible. Alternatively or in addition, the line 1 〇 4 may extend through at least a portion of one of the strips 11 〇. As shown in FIG. 9, the backpack 丨〇〇 can include a controller 112 that utilizes, for example, adjusting the volume of the headphones 1 〇 6 or controlling the electronic device (eg, changing the station of the radio, starting and stopping playback on the CD player, making a mobile call) , and so on) other functions to operate the various functions of the portable 85645 -15-1278292 type electronic device. As shown in the illustrated embodiment, the control cry 112 can extend from the pocket 114 formed in the strip 11G, however the controller 112 can be in any of a number of ways well known to those skilled in the art with the strap HQ or backpack 1 Any other part of the 〇〇 is connected. For example, the controller 112 can be placed in the bag 6 or on the bag. Referring to Fig. 9, there is shown a pictorial structure of a contraction mechanism 1, 2, a line 1, a headphone, and a controller unit 2. The backpack 1 can include a receptacle 118 that can accommodate a central interface that connects the retraction mechanism 102, the earphones 1 and 6 and the controller 112 to an electronic device (not shown). The socket 118 can be selected depending on the particular type of electronic device and the headset it is used in, and can be any conventional socket of the prior art. Referring to Figures 10 and 11, there is shown an illustrative embodiment of a retraction mechanism 1〇2. As discussed above, the retraction mechanism 102 can include a button 1 〇 8 that is operated by the user to automatically retract the line 104 from the extended position to the retracted position. The retracting mechanism 丨〇 2 of Figs. 11 and 12 generally includes a main body izo2 which supports a bobbin ι 22 around which a line 104 is wound. A spring, for illustrative purposes, can be represented as a twisted spring having one end 126 engaged with the body 12 and the other end 128 engaged with the spool 122 such that rotation of the spool 122 compresses the spring 124 in a predetermined direction (eg, rolled up) The retraction mechanism 1 2 can also include a spool 13 可 that can extend through the spool 122. The spool 13 〇 is preferably rotatable relative to the main night 120, but the spool 122 is rotatable along the spool 13 滑. And/or the spools 122 may have contact surfaces 132, 134, respectively, which may generally be mutually biased with each other, for example, by a resilient yellow 136. The surfaces 132, 134 may operate in pairs or a sliding table that interact with each other, at a spring force 136. Next, allow 85645 •16 - 1278292 to draw (1) along the sliding raft 130 in one direction, but not in the opposite direction. (4) A part of 13 ,, such as the head 138, can be located below the button 1〇8, so that it is depressed The spring 108 can move the spool 130 downwardly to resist the force of the spring 36 and to cause the surfaces 132, 134 to move away from each other. As shown in Figures n & i2, the button 108 can be, for example, rubberized. Made of material, but other structures are the same The spool 122 and/or the spring 124 can be redirected such that the line 延伸04 extending toward the extended position can compress the spring 124 thereby creating a restoring force of the spring 124 that causes the spool to rotate in the opposite direction of the contracted line 104. 122. Furthermore, the cooperating tweezers or skids on the surfaces 132, U4 can be redirected to prevent the spool 122 from rotating in the opposite direction (the direction in which the line 1〇4 is to be contracted). Thus, when the user turns the headset When the 1〇6 and/or the line ι〇4 are pulled to an extended position, the rotation of the bobbin 122 will produce a restoring force of the spring 丨24. However, the cooperation between the rafters or the table on the surfaces 132, 134 will prevent the bobbin. The shrink line 104 of 122 returns to the retracted position. Thus, the user can extend the line 1 to 4 to a desired intermediate or fully extended position, and the retraction mechanism 102 will not wish to retract the line 1 to 4 in the retracted position. I hope that the collection, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Borrow The midday and spring shafts 122 rotate under the rotational force of the ammunition 124. The rotation force of the bobbin 122 will cause the wire 104 to wind around the bobbin 122 and return to the retracted position. Depending on the length of time the user pressed the button 108, the line 1〇4 Can be fully returned to the retracted position, or other intermediate position between the retracted and fully extended positions. Thus, the retraction mechanism 102 can be used to extend the line 1〇4 to the desired position and maintain the line ι4 at 85645 -17-1278292, such as In the position of the earphone 106, and subsequently, the button 丨〇8 is automatically contracted, and the spring path 1 〇4 to the retracted position and an intermediate position. It must be noted that the contraction mechanism of Figs. 1 to 12 is not limited to the specific configuration described in the text, nor is it limited to the use of a button. Rather, any number of contracting mechanisms of the prior art can be used and any number of dispensers can be used to contract the line. For example, a line that can be used by a retraction mechanism automatically retracts the line after a short, rapid extension, such as conventional techniques and commonly used in devices such as vacuum cleaners. Referring back to Figure 9, the backpack 100 includes a bag 116 having one or more compartments carrying the items to be transported. The bag 116 can also include a first pocket 142 that houses and carries electronic devices (not shown). A small raft 144 for receiving the private device can be coupled to the first pocket 142 via, for example, a wire 146. The pouch 144 and the wire 146 can be used to provide a safety feature to prevent the electronic device from being accidentally dropped or damaged. The early N^ clothing 116 may also include a 筮-v罘 one garment 14 8 joined by a second wire 152 and having a pair of folds 15 。. The folded-back structure can hold the media of the electronic device (for example, | agent. Tulai tablets, pens, flash memory cards, micro-drives, cassettes, and a ^ ^ temple). However, it will be apparent to those skilled in the art that the present invention is not limited to any particular structure of the present invention. Although the various methods of the present invention have been described above, it must be understood that the various features of the single type are used in any combination. In particular, the various inventive concepts are not required to be used, and the use of the invention is not intended to be exhaustive. - The invention is not limited to the specific application of the 7F referred to in the text. Furthermore, it must be understood that, in accordance with the various changes in the spirit and scope of the six spirits 85645 -18- 1278292, the line and combination correction of this model can be consistent with this example. The reference to this description and the modifications can be conceived by those skilled in the art. For example, it is not limited to any specific type of baggage such as Li, such as a briefcase, η 吏 万 “ “ “ “ “ “ 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 ^ ^ ^ ^ ^ ^ ^ ^ Therefore, the ownership should be readily obtained by the skilled person from the disclosure of the internal statement, but the spirit and scope of the invention must be included, and the scope of the further invention of the invention will be included as a patent application. The present invention will be better understood, and the same reference numerals will be used to refer to the same components, as follows: Figure 1 is a perspective view of a backpack embodiment of the present invention, and a table Figure 2 is a perspective view of the backpack of Figure 1 and showing the machine in an extended position; Figure 3 is a perspective view of an illustrative embodiment of a shoulder strap having a retraction mechanism according to the present invention; Figure 3 is a cross-sectional view of the shoulder strap and the retraction mechanism taken along line v_V in Figure 3; Figure 6 is a diagram of the shoulder strap having the retraction mechanism of the present invention. Embodiment perspective Figure 7 is a front elevational view of the illustrated embodiment of the circuit and earphone of the present invention; Figure 8 is a perspective view of the illustrated embodiment of the bag of Figure 1; Figure 9 is a second illustrative embodiment of the backpack of the present invention Figure 16 is a perspective view of the socket, volume control, retraction mechanism, earphones and connected lines of the backpack of Figure 9; Figure 11 is a front elevational view of the illustrated embodiment of the contraction mechanism of Figure 10; And Fig. 12 is a cross-sectional view of the shrinking mechanism taken along line ΧΙΙ-ΧΙΙ of Fig. 11. [Description of symbolic representation of the figure] 10 ^ 100 Back concave 12, 116 Bag 12 Α Spacer 14, 116 Tape 16 > 106 Headphones 18 Electronics 20, 104 Line 20 Α First free end 20 Β Second free end η, 60 ^ 102 Shrinking mechanism 24 ^ 62 Shrinking member 26 - Track 26 Α First end 26 Β Second end 28 Closer 30 - 112 Controller 32 > 120 Main body 34 First part 85645 -20- 1278292 36 Second part 38 Middle part 40 Opening 41, 48 Groove 42 Exposure part 43 Clamp 44 First material layer 46 Second material layer 50 Panel 64 122 line car consists of 66 ^ 118 socket 70 rear wall layer 72 front wall layer 74, 76 first and second side wall layer 78 first compartment 80 second compartment 82, 144 pouch 84, 146 - wire 108 button 114 Pocket 124 > 136 Spring 126 One end 128 The other end 130 Spool valve-21- 85645 1278292 132 , 134 Contact surface 138 Head end 142 First pocket 148 Second pocket 150 Folding 152 Second wire 85645 -22-