TWI724245B - Air pump for hollow ball - Google Patents
Air pump for hollow ball Download PDFInfo
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- TWI724245B TWI724245B TW106134028A TW106134028A TWI724245B TW I724245 B TWI724245 B TW I724245B TW 106134028 A TW106134028 A TW 106134028A TW 106134028 A TW106134028 A TW 106134028A TW I724245 B TWI724245 B TW I724245B
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B41/00—Hollow inflatable balls
- A63B41/12—Tools or devices for blowing up or closing balls
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Abstract
Description
本發明涉及一種用於向軟式網球(soft tennis ball)等中空球內填充空氣的打氣筒。The invention relates to an inflator for filling air into hollow balls such as soft tennis balls.
軟式網球具有包含交聯橡膠的球殼和橡膠閥(rubber valve)。球殼為中空。在該球殼中填充空氣。通過該空氣,達成球殼的規定內壓。The soft tennis ball has a ball shell containing cross-linked rubber and a rubber valve. The spherical shell is hollow. The spherical shell is filled with air. With this air, the predetermined internal pressure of the spherical shell is achieved.
一旦經球拍(racket)反復擊打,空氣會逐漸從網球中洩漏,其內壓將逐漸下降。內壓為規定值以下的網球回彈性不夠充分,因此不耐使用。Once repeatedly hit by the racket, air will gradually leak from the tennis ball, and its internal pressure will gradually drop. Tennis balls whose internal pressure is below the specified value have insufficient resilience and are therefore not resistant to use.
向內壓下降的網球中再次填充空氣。在填充時使用打氣筒。打氣筒具有插針。該插針具有用於使空氣通過的孔和用於排出該空氣的出口。將該插針紮入橡膠閥中,向網球中填充空氣。The tennis ball whose internal pressure has dropped is filled with air again. Use a pump when filling. The pump has pins. The pin has a hole for passing air and an outlet for discharging the air. Stick the pin into the rubber valve and fill the tennis ball with air.
在日本專利特開2007-289763公報中,揭示有一種打氣筒,其具有插針和用於該插針的蓋(cap)。該蓋內置有潤滑劑塗佈體。潤滑劑從該潤滑劑塗佈體轉移至插針。該潤滑劑抑制因插針紮入橡膠閥時的摩擦引起的、橡膠閥的損傷。 現有技術文獻 專利文獻In Japanese Patent Laid-Open No. 2007-289763, an inflator is disclosed that has a pin and a cap for the pin. A lubricant coating body is built in the cover. The lubricant is transferred from the lubricant-coated body to the pin. This lubricant suppresses damage to the rubber valve caused by friction when the pin is inserted into the rubber valve. Prior Art Documents Patent Documents
專利文獻1:日本專利特開2007-289763公報Patent Document 1: Japanese Patent Laid-Open Publication 2007-289763
[發明所要解決的問題] 日本專利特開2007-289763公報中揭示的打氣筒中,插針是在由潤滑劑塗佈體覆蓋的狀態下予以保管。在保管中,有時潤滑劑會從插針的出口侵入孔內,並滯留於該孔中。該潤滑劑會堵塞孔。要利用孔被堵塞的狀態的打氣筒來填充空氣,必須將泵(pump)強力按壓至擠出潤滑劑的程度。強力的按壓對於作業者而言為負擔。[Problem to be Solved by the Invention] In the pump disclosed in Japanese Patent Application Laid-Open No. 2007-289763, the pins are stored in a state covered with a lubricant coating body. During storage, lubricant may intrude into the hole from the outlet of the pin and stay in the hole. The lubricant can clog the holes. To fill the air with the air pump with the hole blocked, the pump must be strongly pressed to the extent that the lubricant is squeezed out. The strong pressing is a burden for the operator.
本發明的目的在於提供一種潤滑劑難以侵入孔內,因而該孔難以堵塞的中空球用打氣筒。 [解決問題的技術手段]The object of the present invention is to provide a hollow ball pump in which lubricant is difficult to penetrate into the hole, and therefore the hole is hard to be blocked. [Technical means to solve the problem]
本發明的中空球用打氣筒包括具有插針的泵、和用於覆蓋該插針的針罩。該插針具有用於使空氣通過的孔、和用於排出該空氣的出口。針罩具有蓋和保持體,該保持體被收容於該蓋中,且含浸有潤滑劑。該保持體位於如下所述的位置,即,當針罩被安裝於泵時,插針紮入保持體且出口從保持體露出的位置。The hollow ball pump of the present invention includes a pump having a pin, and a needle cover for covering the pin. The pin has a hole for passing air and an outlet for discharging the air. The needle cover has a cover and a holding body, and the holding body is housed in the cover and is impregnated with lubricant. The holding body is located at a position as described below, that is, when the needle cover is attached to the pump, the pin is inserted into the holding body and the outlet is exposed from the holding body.
優選的是,保持體為發泡體。Preferably, the holding body is a foam.
蓋也可在其內面具有用於阻止保持體前進的階差。蓋也可在其內面具有用於阻止保持體前進的突起。保持體也可接合於蓋。 [發明的效果]The cover may have a step on its inner surface for preventing the holding body from advancing. The cover may also have a protrusion on its inner surface for preventing the advancement of the holding body. The holding body may also be joined to the cover. [Effects of the invention]
本發明的中空球用打氣筒中,在針罩被安裝於泵的狀態下,出口從保持體露出,因此可抑制潤滑劑從該出口侵入孔內。在該打氣筒中,孔難以堵塞。In the hollow ball pump of the present invention, when the needle cover is attached to the pump, the outlet is exposed from the holder. Therefore, it is possible to prevent lubricant from entering the hole from the outlet. In this pump, the hole is difficult to block.
以下,適當地參照附圖,並基於優選的實施方式來詳細說明本發明。Hereinafter, the present invention will be described in detail based on preferred embodiments with appropriate reference to the drawings.
圖1所示的中空球用打氣筒2具有泵4和針罩6。針罩6可安裝於泵4。該打氣筒2可用於對軟式網球填充空氣。The
圖2中表示泵4。該泵4具有氣腔(balloon)8及插針10。The
氣腔8是由交聯橡膠或軟質合成樹脂所形成。該氣腔8為可撓性。該氣腔8為中空。該氣腔8可在內部蓄積空氣。圖2表示未被按壓狀態的氣腔8。當受到按壓時,氣腔8凹陷。氣腔8具有吸入口12。The
圖3表示圖2的泵4的插針10的一部分的放大剖面圖。該插針10連結於氣腔8。該插針10為中空。針具有孔14及出口16。出口16較插針10的前端(圖3中的右端)位於稍後側(圖3中的左側)。Fig. 3 shows an enlarged cross-sectional view of a part of the
孔14可使空氣通過。孔14與氣腔8的內部連通。氣腔8內部的空氣可通過孔14。該空氣從出口16排出。作為插針10的材質,例示鋼(steel)及不鏽鋼(stainless steel)。The
圖4是表示圖1的打氣筒2的針罩6的放大正面圖,圖5是表示圖4的針罩6的左側面圖,圖6是沿著圖4的VI-VI線的剖面圖,圖7是沿著圖5的VII-VII線的剖面圖。該針罩6具有蓋18及保持體20。Fig. 4 is an enlarged front view showing the
蓋18為中空。蓋18的第一端22(圖7中的左端)開口,第二端24(圖7中的右端)封閉。蓋18的內徑從第一端22朝向第二端24而變細。蓋18的典型材質為樹脂組成物。優選的是,蓋18是透明的。具有透明的蓋18的針罩6中,可透過該蓋18看到保持體20。蓋18也可是半透明的。The
如圖7所示,保持體20被收容於蓋18中。保持體20未達第二端24。因而,在針罩6的、保持體20與第二端24之間,存在空間(space)26。保持體20包含具有連續氣泡的發泡體。該發泡體的基材為合成樹脂或橡膠。典型的基材為聚氨酯(polyurethane)。保持體20也可由織布、無紡布、針織品、棉等所形成。As shown in FIG. 7, the holding
在保持體20中含浸有潤滑劑。保持體20保持潤滑劑。作為潤滑劑的具體例,可列舉油(oil)。典型的潤滑劑為矽酮油。The
圖8是表示圖1的打氣筒2的局部切開剖面圖。圖8中,針罩6被安裝於泵4。在此狀態下,針罩6覆蓋插針10。在安裝時,插針10紮入保持體20中,且貫穿該保持體20。通過該貫穿,出口16較保持體20到達前側(圖8中的右側)。出口16位於空間26中。出口16從保持體20露出。Fig. 8 is a partially cut cross-sectional view showing the
當製造該打氣筒2時,該打氣筒2以圖8所示的狀態流通。購入該打氣筒2者是以圖8所示的狀態來保管該打氣筒2。使用該打氣筒2後,也以圖8所示的狀態來予以保管。When the
在圖8所示的狀態下,出口16不與保持體20接觸。因而,含浸在保持體20中的潤滑劑未到達出口16。該打氣筒2中,潤滑劑通過出口16而侵入孔14中的現象得到抑制。該打氣筒2中,孔14難以堵塞。In the state shown in FIG. 8, the
當針罩6被安裝於泵4時,插針10貫穿保持體20。換言之,插針10與保持體20相互摩擦。通過該相互摩擦,潤滑劑從保持體20轉移到插針10的外表面。從泵4取下針罩6時,插針10也與保持體20相互摩擦。通過該相互摩擦,潤滑劑從保持體20轉移到插針10的外表面。插針10的外表面被塗佈(coating)以潤滑劑。When the
當針罩6被安裝於泵4時,有時保持體20會***針10推向前方。通過保持體20具有適當的剛性,從而與蓋18的內徑相輔相成地變細,即使***針10推動,保持體20也難以朝前方移動。通過阻止保持體20朝向前方的移動,從而維持足夠的空間26。因而,出口16不與保持體20接觸。基於適度的剛性及潤滑劑保持的觀點,優選的保持體20的材質為發泡體。尤其優選高密度的發泡體。保持體20也可通過黏合劑等接合於蓋18。When the
圖9是將圖1的打氣筒2的一部分與軟式網球28一同表示的剖面圖。該軟式網球28具有球殼30與橡膠閥32。圖9中,插針10貫穿橡膠閥32。當在此狀態下用手指堵住氣腔8(參照圖1)的吸入口12,且按壓氣腔8時,該氣腔8凹陷,氣腔8的內壓上升。氣腔8內的空氣通過孔14(參照圖3)。該空氣從出口16移動到球殼30中。通過該移動,軟式網球28的內壓升高。當手指離開吸入口12時,氣腔8復原。復原時,空氣從吸入口12流入氣腔8的內部。泵4也可具有用於阻止空氣從軟式網球28逆流向氣腔8的止回閥。FIG. 9 is a cross-sectional view showing a part of the
為了達成圖9所示的狀態,必須將插針10***橡膠閥32中。在***時,插針10與橡膠閥32相互摩擦。如前所述,插針10被塗佈以潤滑劑。因而,該相互摩擦時的摩擦係數小。潤滑劑抑制橡膠閥32產生毛刺等損傷。In order to achieve the state shown in FIG. 9, the
當在圖9所示的狀態下完成對軟式網球28的空氣填充時,從橡膠閥32中拔出插針10。此時,插針10與橡膠閥32相互摩擦。如前所述,插針10被塗佈以潤滑劑。因而,該相互摩擦時的摩擦係數小。潤滑劑抑制橡膠閥32產生毛刺等損傷。When the air filling of the
該打氣筒2中,潤滑劑不會侵入孔14,因此可使用高黏度的潤滑劑。高黏度的潤滑劑能更好地防止橡膠閥32的損傷。高黏度的潤滑劑容易保持在保持體中,因而難以流出向空間26。高黏度的潤滑劑難以侵入孔14。In the
圖10是表示本發明的另一實施方式的中空球用打氣筒的一部分的剖面圖。圖10中表示了針罩34。該打氣筒具有與圖1至圖9所示的打氣筒2的泵4同樣的泵。Fig. 10 is a cross-sectional view showing a part of a hollow ball pump according to another embodiment of the present invention. The
該針罩34具有蓋36與保持體38。保持體38的材質及形狀與圖7所示的保持體20的材質及形狀同樣。蓋36在第二端40附近為厚壁。因而,蓋36在其內面具有階差42。保持體20抵接於該階差42。當針罩34被安裝於泵時,有時保持體38會***針推向前方。即使保持體38被推動,階差42也能阻止該保持體38朝前方移動。因而,可在蓋36中維持足夠的空間44。該打氣筒中,插針的出口不與保持體38接觸。該打氣筒中,潤滑劑通過出口而侵入孔中的現象得到抑制。該打氣筒中,孔難以堵塞。The
圖11是表示本發明的又一實施方式的中空球用打氣筒的一部分的剖面圖。圖11中表示了針罩46。該打氣筒具有與圖1至圖9所示的打氣筒2的泵4同樣的泵。Fig. 11 is a cross-sectional view showing a part of a hollow ball pump according to another embodiment of the present invention. The
該針罩46具有蓋48與保持體50。保持體50的材質與圖7所示的保持體20的材質同樣。蓋48在其內面具有第一階差52及第二階差54。保持體50抵接於第一階差52,也抵接於第二階差54。保持體50被這些階差52、54夾著。當針罩46被安裝於泵時,即使保持體50***針推向前方,第一階差52也阻止該保持體50朝前方移動。因而,可在蓋48中維持足夠的空間56。該打氣筒中,插針的出口不與保持體50接觸。該打氣筒中,潤滑劑通過出口而侵入孔中的現象得到抑制。該打氣筒中,孔難以堵塞。該蓋48中,第二階差54阻止保持體50朝後方移動。The
圖12是表示本發明的又一實施方式的中空球用打氣筒的一部分的剖面圖。圖12中表示了針罩58。該打氣筒具有與圖1至圖9所示的打氣筒2的泵4同樣的泵。Fig. 12 is a cross-sectional view showing a part of a hollow ball pump according to another embodiment of the present invention. The
該針罩58具有蓋60與保持體62。保持體50的材質與圖7所示的保持體20的材質同樣。蓋60在其內面具有肋部64。通過該肋部64,形成有階差66。保持體62抵接於階差66。當針罩58被安裝於泵時,即使保持體62***針推向前方,階差66也阻止該保持體62朝前方移動。因而,可在蓋60中維持足夠的空間68。該打氣筒中,插針的出口不與保持體62接觸。該打氣筒中,潤滑劑通過出口而侵入孔中的現象得到抑制。該打氣筒中,孔難以堵塞。The
圖13是表示本發明的又一實施方式的中空球用打氣筒的一部分的剖面圖。圖13中表示了針罩70。該打氣筒具有與圖1至圖9所示的打氣筒2的泵4同樣的泵。Fig. 13 is a cross-sectional view showing a part of a hollow ball pump according to another embodiment of the present invention. The
該針罩70具有蓋72與保持體74。保持體74的材質與圖7所示的保持體20的材質同樣。蓋72在其內面具有多個突起76。這些突起76按壓保持體74的外周面。當針罩70被安裝於泵時,即使保持體74***針推向前方,突起76也阻止該保持體74朝前方移動。因而,可在蓋72中維持足夠的空間78。該打氣筒中,插針的出口不與保持體74接觸。該打氣筒中,潤滑劑通過出口而侵入孔中的現象得到抑制。該打氣筒中,孔難以堵塞。The
圖14是表示本發明的又一實施方式的中空球用打氣筒的一部分的剖面圖。圖14中表示了針罩80。該打氣筒具有與圖1至圖9所示的打氣筒2的泵4同樣的泵。Fig. 14 is a cross-sectional view showing a part of a hollow ball pump according to another embodiment of the present invention. The
該針罩80具有蓋82與保持體84。保持體84的材質與圖7所示的保持體20的材質同樣。保持體84具有主部86與凸緣88。主部86***蓋82中。凸緣88抵接於蓋82的第一端90。當針罩80被安裝於泵時,即使保持體84***針推向前方,第一端90也阻止該保持體84朝前方移動。因而,可在蓋82中維持足夠的空間92。該打氣筒中,插針的出口不與保持體84接觸。該打氣筒中,潤滑劑通過出口而侵入孔中的現象得到抑制。該打氣筒中,孔難以堵塞。 [產業上的可利用性]The
本發明的打氣筒可用於各種中空球。The pump of the present invention can be used for various hollow balls.
2‧‧‧中空球用打氣筒4‧‧‧泵6、34、46、58、70、80‧‧‧針罩8‧‧‧氣腔10‧‧‧插針12‧‧‧吸入口14‧‧‧孔16‧‧‧出口18、36、48、60、72、82‧‧‧蓋20、38、50、62、74、84‧‧‧保持體22、90‧‧‧第一端24、40‧‧‧第二端26、44、56、68、78、92‧‧‧空間28‧‧‧軟式網球30‧‧‧球殼32‧‧‧橡膠閥42、66‧‧‧階差52‧‧‧第一階差54‧‧‧第二階差64‧‧‧肋部76‧‧‧突起86‧‧‧主部88‧‧‧凸緣VI-VI‧‧‧線VII-VII‧‧‧線2‧‧‧Pump for
圖1是表示本發明的一實施方式的中空球用打氣筒的分解立體圖。 圖2是表示圖1的打氣筒的泵的正面圖。 圖3是表示圖2的泵的一部分的放大剖面圖。 圖4是表示圖1的打氣筒的針罩的放大正面圖。 圖5是表示圖4的針罩的左側面圖。 圖6是沿著圖4的VI-VI線的剖面圖。 圖7是沿著圖5的VII-VII線的剖面圖。 圖8是表示圖1的打氣筒的局部切開剖面圖。 圖9是將圖1的打氣筒的一部分與軟式網球一同表示的剖面圖。 圖10是表示本發明的另一實施方式的中空球用打氣筒的一部分的剖面圖。 圖11是表示本發明的又一實施方式的中空球用打氣筒的一部分的剖面圖。 圖12是表示本發明的又一實施方式的中空球用打氣筒的一部分的剖面圖。 圖13是表示本發明的又一實施方式的中空球用打氣筒的一部分的剖面圖。 圖14是表示本發明的又一實施方式的中空球用打氣筒的一部分的剖面圖。Fig. 1 is an exploded perspective view showing an inflator for hollow balls according to an embodiment of the present invention. Fig. 2 is a front view showing a pump of the pump of Fig. 1. Fig. 3 is an enlarged cross-sectional view showing a part of the pump of Fig. 2. Fig. 4 is an enlarged front view showing the needle cover of the pump of Fig. 1. Fig. 5 is a left side view showing the needle cover of Fig. 4. Fig. 6 is a cross-sectional view taken along the line VI-VI of Fig. 4. Fig. 7 is a cross-sectional view taken along the line VII-VII in Fig. 5. Fig. 8 is a partially cut cross-sectional view showing the pump of Fig. 1. Fig. 9 is a cross-sectional view showing a part of the pump of Fig. 1 together with a soft tennis ball. Fig. 10 is a cross-sectional view showing a part of a hollow ball pump according to another embodiment of the present invention. Fig. 11 is a cross-sectional view showing a part of a hollow ball pump according to another embodiment of the present invention. Fig. 12 is a cross-sectional view showing a part of a hollow ball pump according to another embodiment of the present invention. Fig. 13 is a cross-sectional view showing a part of a hollow ball pump according to another embodiment of the present invention. Fig. 14 is a cross-sectional view showing a part of a hollow ball pump according to another embodiment of the present invention.
2‧‧‧中空球用打氣筒 2‧‧‧Hollow ball pump
4‧‧‧泵 4‧‧‧Pump
6‧‧‧針罩 6‧‧‧Needle cover
8‧‧‧氣腔 8‧‧‧Air cavity
10‧‧‧插針 10‧‧‧Pin
16‧‧‧出口 16‧‧‧Exit
18‧‧‧蓋 18‧‧‧cover
20‧‧‧保持體 20‧‧‧Maintenance
26‧‧‧空間 26‧‧‧Space
Claims (5)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2016-254581 | 2016-12-28 | ||
JP2016254581A JP6834477B2 (en) | 2016-12-28 | 2016-12-28 | Inflator for hollow balls |
Publications (2)
Publication Number | Publication Date |
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TW201822846A TW201822846A (en) | 2018-07-01 |
TWI724245B true TWI724245B (en) | 2021-04-11 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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TW106134028A TWI724245B (en) | 2016-12-28 | 2017-10-02 | Air pump for hollow ball |
Country Status (4)
Country | Link |
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JP (1) | JP6834477B2 (en) |
KR (1) | KR102396896B1 (en) |
CN (1) | CN108245849B (en) |
TW (1) | TWI724245B (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWM351093U (en) * | 2008-10-03 | 2009-02-21 | zhen-xiang Zhang | Structure of stainless pump needle made of steel glued with plastic steel |
JP4433489B2 (en) * | 2007-08-10 | 2010-03-17 | 昭和ホールディングス株式会社 | Pneumatic pump for soft tennis ball |
TWM520922U (en) * | 2015-08-07 | 2016-05-01 | zhen-xiang Zhang | Structure of pump needle |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2026933A (en) * | 1935-04-12 | 1936-01-07 | Seamless Rubber Company Inc | Self-lubricating inflating needle |
US2969082A (en) * | 1959-04-16 | 1961-01-24 | Dill Mfg Co | Lubricating holder for a side wall tire valve inflating needle |
JP4022467B2 (en) * | 2002-12-24 | 2007-12-19 | 昭和ゴム株式会社 | Soft tennis ball and air pump |
JP4500622B2 (en) * | 2004-08-19 | 2010-07-14 | 昭和ホールディングス株式会社 | Soft tennis ball and soft tennis ball manufacturing method |
JP4064970B2 (en) * | 2005-02-17 | 2008-03-19 | ナガセケンコー株式会社 | Air injection pump for hollow balls |
WO2012009534A2 (en) * | 2010-07-15 | 2012-01-19 | Revelc, Llc | Threaded valved inflation needle for facilitating inflation of pneumatic objects |
JP2012090842A (en) * | 2010-10-28 | 2012-05-17 | Shin Etsu Polymer Co Ltd | Needle piercing valve and hollow ball |
-
2016
- 2016-12-28 JP JP2016254581A patent/JP6834477B2/en active Active
-
2017
- 2017-09-14 KR KR1020170117650A patent/KR102396896B1/en active IP Right Grant
- 2017-09-25 CN CN201710877877.2A patent/CN108245849B/en active Active
- 2017-10-02 TW TW106134028A patent/TWI724245B/en active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4433489B2 (en) * | 2007-08-10 | 2010-03-17 | 昭和ホールディングス株式会社 | Pneumatic pump for soft tennis ball |
TWM351093U (en) * | 2008-10-03 | 2009-02-21 | zhen-xiang Zhang | Structure of stainless pump needle made of steel glued with plastic steel |
TWM520922U (en) * | 2015-08-07 | 2016-05-01 | zhen-xiang Zhang | Structure of pump needle |
Also Published As
Publication number | Publication date |
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JP6834477B2 (en) | 2021-02-24 |
KR20180077002A (en) | 2018-07-06 |
CN108245849A (en) | 2018-07-06 |
JP2018102763A (en) | 2018-07-05 |
CN108245849B (en) | 2020-07-10 |
TW201822846A (en) | 2018-07-01 |
KR102396896B1 (en) | 2022-05-11 |
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