467734 A7 -----------B7 _ 五'發明説明（！） 發明截^ (請先閲讀背面之注意事項再填寫本頁} 本發明係有關牙刷及其製造方法，特別是在堅硬的刷 毛植入頭前部周圍具有柔軟的彈性緩衝物的牙刷。 MJLt. 如同那些在技術上熟知的技巧，典型的牙刷製造是藉 由將數個刷毛基座植入於牙刷前端桿狀或六面體型的堅硬 頭令’在典型的牙刷中，堅硬的刷毛基座植入頭在刷牙時 可能會對口腔中柔軟的齒根周圍組織表面產生抓傷、擦傷 或刺激等現象’關於這一點，前述的堅硬牙刷頭在口腔衛 生上可能具有不好的影響。 例如在美國專利第5, 630, 244號中所揭露的牙刷，沿 著刷頭侧邊周圍具有邊緣橡膠的填充物以部分解決上述的 問題’然而，在橡膠填充物之間仍有—塊堅硬的刷毛基 底’同樣地，在典型刷毛植入頭背面的堅硬材料在刷牙時 可能對柔軟齒根周圍組織有不利的影響。 經濟部智慧財產局員工消費合作社印製 今天的牙刷一般是藉由射出模製的方法製造，包括" 雙元件（dual component)”的牙刷，其多包含一個位於典型 …堅硬與平滑的塑膠手柄中的非滑動緊握的彈性插入物，在 這種雙元件牙刷中，彈性插入物在高壓下被射入一個在手 柄周圍的鋼模中’由於射出模製壓力可能高到 140MPa(20, 000psi)，如果前端手柄沒有穩固地置於模子 上，彈性插入物或其它第二元件將被壓入前端手柄與模子 之間，一種熟知的情況稱為飛邊現象（flashing)，這種飛 邊現象影響雙元件的接合，並且對雙元件牙刷的要求外觀 -3- 本紙張尺度適用中國國家標準（CNS ) A4规格（2丨0X297公釐} 88287a ^β?734467734 A7 ----------- B7 _ Five 'invention description (!) Cut of invention ^ (Please read the notes on the back before filling out this page} The present invention relates to toothbrushes and their manufacturing methods, especially Toothbrushes with soft elastic cushions around the front of the hard bristle implant head. MJLt. Like those skilled in the art, a typical toothbrush is manufactured by implanting several bristle bases in the shape of a rod on the front end of the toothbrush. Or a hexahedral hard head "in a typical toothbrush, the hard bristle base implant head may cause scratches, abrasions or irritation on the surface of the soft tooth root tissue in the mouth when brushing" For one thing, the aforementioned hard toothbrush head may have a bad effect on oral hygiene. For example, the toothbrush disclosed in US Patent No. 5,630, 244, has a rubber filling with edge rubber around the sides of the brush head to partially Solve the above problem 'However, there is still a hard bristle base between the rubber fillers'. Similarly, the hard material on the back of a typical bristle implant head may not have soft tissue around the roots when brushing The toothbrushes printed by employees ’cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs today are generally manufactured by injection molding, including " dual component 'toothbrushes, which mostly include a typical ... hard and smooth Non-sliding grip elastic insert in a plastic handle of this type, in this two-element toothbrush, the elastic insert is shot into a steel mold around the handle under high pressure 'because the injection molding pressure may be as high as 140 MPa ( 20,000 psi), if the front handle is not firmly placed on the mold, an elastic insert or other second element will be pressed between the front handle and the mold. A well-known situation is called flashing. The flash phenomenon affects the joining of the two elements, and the requirements for the two-element toothbrush Appearance -3- This paper size applies to the Chinese National Standard (CNS) A4 specification (2 丨 0X297 mm) 88287a ^ β? 734
、發明説明（ 造成扭曲，影響牙刷的消費者接受度。 ^消費者可接受的"雙轉,,相有—種需求，其中 入頭的前邊、側邊和其背面的堅硬材料同樣地被- 種柔軟或彈性晴料所_，以將對於易受傷口腔表面的 任何傷害減至最低。 發明之 本發明包含-種對柔軟齒根周圍組織溫和的射出模製 牙刷’包括-具有長㈣細長手柄；—連接於手柄的堅硬 ，毛植人刷頭，刷頭由下列元件組成：—緊接於手柄的後 端與-遠離手柄的前端…刷毛植人正面與其背面，與兩 面間的側邊，該元件具有一用於其上的彈性塗層；同時， 刷頭的一部分突伸經塗層，形成一個基底，基底位在縱軸 附近，提供機構以使射出模的上半部能夠抓住刷頭的刷毛 植入面，緊密地靠著模子的下半部，藉以避免彈性塗層的 飛邊現象。 經濟部智慧財產局員工消費合作杜印製 依據另一個具體實施例’堅硬刷毛植入頭的各部分可 藉由與該堅硬刷毛植入頭形成一體之一或更多的細樑架而 連結在一起’各部分一般是傾斜而彼此間成一銳角，其中 由堅硬刷毛頭之細樑架與鄰近部分形成的槽由與覆蓋刷毛 植入頭前端、侧邊及背面前部相同的彈性材料填滿，於其 周圍形成一緩衝物。如同在前述的第一具體實施例，堅硬 刷毛植入頭有一延伸部，其鄰近堅硬刷毛植入頭的面並與 其結合成一體，提供一基底，以使在將彈性材料射出模製 於堅硬刷毛植入頭周圍時，模子上半部牢固地抓住堅硬刷 -4- 私紙張尺度適用中國國家標準（CNS ) A4规格（210X297公釐） 467734 A7 ---___B7 五、發明説明（3 ) --- 毛植入頭的面’靠住模子的下半部。 附圃之簡單說明 第圖為說月依據本發明第一種具體實施例之堅硬刷 毛植入頭正面的前視圖，其中刷毛沒有繪出。 第二圖為第-圖中顯示之牙刷頭的側視圖。 第三圖為$1中顯示之牙刷頭的後視圖。 第四圖為第-圖中顯示之牙刷頭的第—種替代後視 圖。 第五圖為第一圖之牙刷具有第四圖之替代後視圖的剖 面圖，其剖面線為第四圖中的A_A。 第六圖為本發明第二種具體實施例之堅硬刷毛植入頭 正面的前視圖，其中刷毛沒有繪出。e * 第七圖為第六圓中顯示之牙刷頭的側視圖。 第八圖為第六圖中顯示之牙刷頭的後視圖。 第九圖為第一或第二種實施例之牙刷頭的第二種替代 後視圖。 第十圖為第一或第二種實施例之牙刷頭的第三種替代 後視圖。 較佳具體實施例之蛘細說明 現在參照第一圖，為一個具有正面14之牙刷刷毛植 入頭10與從其延伸出的手柄12之一部份的前視圖，具體 表現了本發明的特性與結構。雖然沒有完整地繪出，讀者 應該瞭解手柄延伸更長並且具有一縱韩，縱軸的横切面為 成簇排列的孔16，用以提供數個成簇刷毛的植入’刷毛在 ____-5- _ 本紙張又度逋用中國國家操準（CNS ) A4规格（210X297公釐）_ (請先閲讀背面之注意事項再填寫本頁} II, 經濟部智慧財產局員工消費合作社印製 467734 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明説明（4 ) 植入其中時是從刷頭的面14以直角延伸出，堅硬刷毛植 入頭10的前端、距離手柄12最遠處被塗佈有彈性的材料 18，其在刖端處周圍形成一緩衝物_ 〇為提供一種消費者可 以接受的緩衝物，彈性材料18的厚度應該在〇.3至3公 厘Onm)之間，較佳的是至少有〇.5公厘，而最佳的是約為 1. 5公歷。 第二圖為第一圖之牙刷刷毛植入頭的側視圖，說明彈 性塗層的延伸完全覆蓋了侧邊，從其頂端2〇到底端22。 第二囷為第一圖之牙刷刷毛植入頭的後視圖，說明彈性塗 層從牙刷前端24延伸至手柄12處，覆蓋了牙刷背面至少 ⑽或較佳的是30%或更多的面積，覆蓋面積標示為沈。 =性覆蓋區域26内部，堅硬植入頭之一部分沿著縱抽 周圍延伸突伸經彈性材料，此—暴露部28形成一個基 2提供機構在當使用傳統兩部模製時彈性材料被射出 =^刷頭Η)周圍時，使模子上半部用力並且抓住堅硬 ==入頭的面’緊靠著模子的τ半部，因而消除刷毛植 因上彈性物的任何飛邊現象，例如刷毛頭表面Η =量彈性物造成的難看情形，飛邊現象的消除提供了消 f可接受的外觀’並且促進彈性物接合於刷毛頭1〇 =避免彈性物與堅硬刷毛頭1〇分離，暴露基底找的面 積至應财i平方公厘W)，較佳的是約2平方公厘。 可選第九、第十岐第—圖巾_之牙綱的其它 ::擇的後視圖’其中第九圖與第十圖顯示不同的單—基 底構造’而在第四圖中顯示了—群分_基底別、32、 ( CNS ) Α4ίϋ7ΐΐ〇Χ297^ ) (請先聞讀背面之注意事項再填寫本頁) 訂、 Explanation of the invention (causes distortion and affects the consumer acceptance of toothbrushes. ^ Consumer acceptable " Double-turn, there is a kind of demand, in which the hard material on the front, side and back of the head are equally -A soft or elastic material_ to minimize any damage to the vulnerable oral surface. The invention of the invention includes-an injection molded toothbrush that is gentle on the tissues around the soft tooth root 'includes-has a long slender Handle;-The hard, hair-bristled brush head connected to the handle, the brush head consists of the following components:-close to the back of the handle and-away from the front of the handle ... the bristle is planted on the front and back, and on the side between the two sides The element has an elastic coating applied thereon; at the same time, a part of the brush head protrudes through the coating to form a base, the base is located near the longitudinal axis, and a mechanism is provided to enable the upper half of the injection mold to hold The bristles of the brush head are implanted close to the lower half of the mold to avoid flashing of the elastic coating. The consumer cooperation of the Intellectual Property Bureau of the Ministry of Economic Affairs is based on another specific embodiment. The various parts of the hard bristle implant head can be joined together by one or more thin beams that are integrated with the hard bristle implant head. 'The parts are generally inclined to form an acute angle with each other, where the hard bristle head The groove formed by the thin beam frame and the adjacent part is filled with the same elastic material as the front, side and back of the bristle implant head, forming a buffer around it. As in the first embodiment described above, The hard bristle implant head has an extension which is adjacent to and integrated with the face of the hard bristle implant head and provides a base so that when the elastic material is ejected and molded around the hard bristle implant head, the upper half of the mold Firmly grasp the hard brush -4- The size of the private paper is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) 467734 A7 ---___ B7 V. Description of the invention (3) --- The surface of the hair implant head The lower part of the mold is attached. The brief description attached to the garden is the front view of the front of the hard bristle implant head according to the first embodiment of the present invention, in which the bristles are not drawn. Shown in Side view of the toothbrush head. The third picture is the rear view of the toothbrush head shown in $ 1. The fourth picture is the first alternative rear view of the toothbrush head shown in the first picture. The fifth picture is the toothbrush of the first picture with The sectional view of the alternative rear view of the fourth figure, the section line of which is A_A in the fourth figure. The sixth figure is a front view of the front of the hard bristle implant head according to the second embodiment of the present invention, in which the bristles are not drawn E * The seventh figure is a side view of the toothbrush head shown in the sixth circle. The eighth figure is a rear view of the toothbrush head shown in the sixth figure. The ninth figure is the toothbrush head of the first or second embodiment. The second alternative rear view of the first. The tenth diagram is the third alternative rear view of the toothbrush head of the first or second embodiment. Detailed description of the preferred embodiment Now referring to the first diagram, there is a front view A front view of a part of the toothbrush bristle implantation head 14 and a part of the handle 12 extending from the toothbrush bristle implant head 10 specifically embodies the characteristics and structure of the present invention. Although it is not fully drawn, the reader should understand that the handle extends longer and has a longitudinal Korean. The cross section of the vertical axis is a cluster of holes 16 to provide the implantation of several clustered bristles. 'Bristles in ____- 5- _ This paper uses China National Standards (CNS) A4 specifications (210X297 mm) again. (Please read the precautions on the back before filling out this page} II, printed by the Consumers ’Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 467734 A7 B7 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of the invention (4) When implanted, it extends from the face 14 of the brush head at a right angle. The hard bristles are implanted at the front end of the head 10 and farthest from the handle 12. It is coated with elastic material 18, which forms a buffer around the stump. 〇 To provide a consumer-acceptable buffer, the thickness of the elastic material 18 should be between 0.3 and 3 mm (Onm). It is preferably at least 0.5 mm, and the most preferable is about 1.5 mm. The second figure is a side view of the toothbrush bristle implant head of the first figure, illustrating that the extension of the elastic coating completely covers the sides, from its top 20 to its bottom 22. The second part is a rear view of the toothbrush bristled implant head of the first figure, which shows that the elastic coating extends from the front end 24 of the toothbrush to the handle 12 and covers at least ⑽ or preferably 30% or more of the back of the toothbrush. The coverage area is marked as Shen. = Inside the sexual coverage area 26, a portion of the hard implant head extends along the longitudinal draw and protrudes through the elastic material, this—the exposed portion 28 forms a base 2 providing the mechanism that the elastic material is ejected when using conventional two-part molding = ^ Brush head Η) When you are around, make the upper half of the mold strong and hold the hard == the face of the head is close to the τ half of the mold, thus eliminating any flashing of the bristle plant due to the elastic, such as the bristles Head surface Η = Unsightly situation caused by the amount of elastics, the elimination of flashing provides an acceptable appearance and promotes the bonding of the elastics to the bristle heads 10 = Avoids separation of the elastics from the hard bristle heads 10, exposing the substrate The area to be found is up to 2 square millimeters, preferably about 2 square millimeters. Optional ninth, tenth Qidi—picture towel_zhigang other :: selected rear view 'where the ninth and tenth pictures show different single-basal structure' and the fourth picture shows— Grouping _ Basic Type, 32, (CNS) Α4ίϋ7ΐΐ〇Χ297 ^) (Please read the precautions on the back before filling this page) Order
Mr 467734 A7 --—-— 五、發明説明（5 ) 34。縱軸通過各種可選擇輪廊基底的中間；此種於縱_ 近均勻的間隔配置，在射出模製時對於均勻地將模子上丰 部的封閉力刀配至基底上同時將力傳遞過刷毛頭是 幫助的，以均句地抓住刷毛頭面14緊靠著模子下半部， 藉此可避免彈性物的任何飛邊現象。 第五圖為第-圖之牙刷具有第四圖之替代後視圖的剖 面圖’剖面線為第四圖中的A_A，用以說明刷毛頭内的彈 性物充填區36、38、40,與延伸穿過彈性物的基底42和 44。如第五圖所示，延伸在刷毛頭上的彈性物在刷毛頭的 面邊留有-缺口 46，如此一來彈性物可被更緊密地接合於 刷頭10上，如第五圖所示，該缺口具有一深度χ ’其值介 於0.2公厘至0.5公厘間，較佳的是約〇 5公厘。 第六、第七、第八圖說明本發明的另一個具體實施 例，與第一、第二、第三圖中的相似，除了本具體實施例 的堅硬刷毛頭具有一或多個堅硬刷毛植入頭材料的細樑 架’分離堅硬刷毛頭成數個部位，各部位一般呈傾斜而彼 此間成一銳角，如此一來，各部位對於其它部位將彎曲成 一個像關節連接的牙刷頭。堅硬刷毛頭上由細擁架與鄰近 部位形成的槽被以與堅硬刷毛植入頭之前、後及側邊周圍 的緩衝物内相同的彈性材料填充，這樣的關節連接式牙刷 在美國專利第5, 758, 383號中有更完整的說明，其主張之 權利在此以授權方式併入本發明。與第一具體實施例中的 一樣’第八圖所示的第二具體實施例提供基底以避免彈性 材料在其從缓衝物射出並且填滿槽時的飛邊現象。 -7- 本紙張尺度適用中國國-標率（CNS ) Α4規格（210X297公釐） ~~-- (請先閲讀背面之注$項再填寫本頁) -_ :> 經濟部智慧財產局員工消費合作社印製 467734 Α7 Β7 五、發明説明（6 ) 堅硬的刷毛植入頭與和其結合的手柄較佳的是使用聚 丙烯（polypropylene)模製’或是假如需要亮麗的外表則以 聚酯樹脂（polyester)，例如聚對苯二曱酸乙二醋 (polyethylene terephthalate)。具有較佳的聚丙烯堅硬 刷毛頭，用於刷頭10周圍作為緩衝物與充填其中任何槽 的彈性材料，可能是一種熱塑性彈性物或其組合，包括— 種熱塑性硫化橡膠（thermoplastic vulcanate，TPV)，其由 聚丙烯混合物與乙烯丙烯二烯單體（EPDM)組成，可由在美 國專利第5,393,796號中說明的Santoprene(品牌）得到； 或是Vyram(品牌）’另一種由聚丙稀混合物與天然橡膠組 成的熱塑性硫化橡膠，Santoprene與Vyram是Advanced Elastomer Systems LP(Akron，Ohio 44311)公司銷售的商 品。其它較佳的彈性物為Dynaflex G6713(品牌），是GLS 公司（Cary, Illinois 60013)銷售的一種熱塑性彈性物；這 些與其它適合的彈性物一般而言具有一蕭氏硬度值（Sh〇re A hardness)從13至94，而約29是較佳的硬度值。 很多在今日市場上可以得到的牙刷是”雙元件"，其意 思指一彈性材料被填入堅硬塑膠牙刷内部較大或較小的範 圍内’特別是在牙刷的手指抓握處。在工業技術上，以射 出模製的方法製造這類雙元件的牙刷是熟知的，依照本發 明的牙刷也能夠利用這一傳統的雙元件技術製造；例如， 依照本發明’彈性材料可能在堅硬刷毛植入頭與手柄的射 出模製後’藉由第二射出步驟而被導入頭部區域，在此第 二射出步驟，半成品的牙刷被放置於第二個模子上，在其 本紙張尺度適用中國國^^^(CNS) M規格（21〇χ297公董^ (請先閎讀背面之注意事項再填寫本買) 訂 經濟部智慧財產局員工消費合作社印製 Π 467734 A7 ——_________B7 五、發明説明（7 ) 内部彈性物被沿著堅硬刷毛植入頭周圍射出，而在其侧邊 前部、植入面正面部分與背面周圍形成緩衝物。如上所 述，堅硬刷毛頭背面的一部份延伸到第二模的表面，提供 彈性物填充區域内的基底，這樣的基底施力於堅硬刷毛植 入頭的面，使其緊靠著第一個模子以避免彈性物的任何飛 邊現象。在這樣的兩階段射出模製，牙刷可以利用—雙元 件模子模製，這樣的模子可從Machines Boucherie N.V.，Izegem，Belgium得到’對於這樣的兩階段射出程 序，模子可以被安裝於一傳統的射出模製機器，例如從安 大略省 Engel Canada 公司（Guelph, Ontario)可買到的 300 頓、雙元件射出模製機器，在模製程序後，牙刷的刷毛植 入頭接著可以利用傳統的纖維技術成簇地植入刷毛。 經濟部智慧財產局員工消費合作杜印製 9 墨 張 -紙 本 Μ 準 標 家 一國 一國 I釐 公 4 67 73 4 A7 B7 五、發明説明（ 主要元件代表符號之封照說明 10 牙刷刷毛植入頭 12 手柄 14 正面 16 孔 18 彈性材料 20 頂端 22 底端 24 牙刷前端 26 覆蓋面積 28 暴露部 30 基底 32 基底 34 基底 36 彈性物充填區 38 彈性物充填區 40 彈性物充填區 42 基底 44 基底 46 缺口 修 f梅尤 (請先閲讀背面之注意事項再填寫本頁) -裝- 訂 線. 經濟部智慧財產局員工消費合作社印製 - 9 本紙張又度適用中國國家標準（CNS ) A4規格（210X2.97公釐）Mr 467734 A7 ------ 5. Description of the invention (5) 34. The longitudinal axis passes through the middle of the base of the various optional raceways; this kind of arrangement is arranged at a uniform interval in the longitudinal direction. During injection molding, the closed force knife of the upper part of the mold is evenly distributed to the base while transmitting the force through the bristles. The head is helpful to grasp the bristle head surface 14 evenly against the lower half of the mold, thereby avoiding any flashing of the elastic. The fifth figure is a cross-sectional view of the toothbrush of the fourth figure having an alternative rear view of the fourth figure. The section line is A_A in the fourth figure, which is used to illustrate the elastic filling areas 36, 38, 40 in the bristle head, and the extension Passes through the bases 42 and 44 of the elastomer. As shown in the fifth figure, the elastomer extending on the bristle head has a notch 46 on the side of the bristle head, so that the elastic can be more tightly joined to the brush head 10, as shown in the fifth figure, The notch has a depth χ ′ having a value between 0.2 mm and 0.5 mm, and preferably about 0.05 mm. The sixth, seventh, and eighth figures illustrate another specific embodiment of the present invention, which is similar to the first, second, and third figures, except that the hard bristle head of this embodiment has one or more hard bristle plants. The thin beam frame of the head material 'separates the hard bristle head into several parts, and each part is generally inclined and forms an acute angle with each other. In this way, each part will bend into a toothbrush head connected to the joint like other parts. The groove formed on the hard bristle head by the thin holder and the adjacent part is filled with the same elastic material as the buffer material before, after and around the side of the hard bristle implant. Such an articulated toothbrush is described in US Patent No. 5, A more complete description is provided in Nos. 758, 383, and the claimed rights are hereby incorporated by reference into the present invention. As in the first embodiment, the second embodiment shown in the eighth figure provides a substrate to avoid flashing of the elastic material when it is ejected from the buffer and fills the groove. -7- This paper size applies to China's national standard (CNS) Α4 size (210X297mm) ~~-(Please read the note on the back before filling this page) -_: > Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the employee's consumer cooperative 467734 Α7 Β7 V. Description of the invention (6) The hard bristle implant head and the handle combined with it are preferably molded using polypropylene (polypropylene) or if a bright appearance is required An ester resin, such as polyethylene terephthalate. It has a better polypropylene hard bristle head, which is used around the brush head 10 as a buffer and an elastic material filling any groove therein, which may be a thermoplastic elastomer or a combination thereof, including a thermoplastic vulcanate (TPV), It consists of a mixture of polypropylene and ethylene propylene diene monomer (EPDM), which is available from Santoprene (brand) as described in US Patent No. 5,393,796; or Vyram (brand). Another consists of a polypropylene mixture and natural rubber Santoprene and Vyram are thermoplastic vulcanizates sold by Advanced Elastomer Systems LP (Akron, Ohio 44311). Other preferred elastomers are Dynaflex G6713 (brand), a thermoplastic elastomer sold by GLS Corporation (Cary, Illinois 60013); these and other suitable elastomers generally have a Shore hardness value (Shore A hardness) from 13 to 94, and about 29 is a preferred hardness value. Many toothbrushes available on the market today are "dual-element", which means that an elastic material is filled into a larger or smaller area inside a hard plastic toothbrush ', especially at the finger grip of the toothbrush. In the industry Technically, it is well known to manufacture such two-component toothbrushes by injection molding, and toothbrushes according to the present invention can also be manufactured using this traditional two-component technology; for example, according to the present invention, 'elastic materials may After injection molding of the head and the handle, it is introduced into the head area through the second injection step. In this second injection step, the semi-finished toothbrush is placed on the second mold, and the paper size is applicable to China. ^^^ (CNS) M specification (21〇χ297 公 董 ^ (Please read the notes on the back before filling out this purchase) Order printed by the Intellectual Property Bureau Employee Consumer Cooperatives of the Ministry of Economy Π 467734 A7 ——_________ B7 V. Description of the invention (7) The internal elastic is ejected around the hard bristle implant head, and a cushion is formed at the front of the side, the front part of the implantation surface, and around the back surface. As described above, the rigidity A part of the back of the bristle head extends to the surface of the second mold to provide a substrate in the elastic filling area. Such a substrate applies a force to the surface of the hard bristle implant head so that it rests against the first mold to avoid the elastic Any flashing phenomenon. In such two-stage injection molding, the toothbrush can be used-two-element mold molding, such a mold can be obtained from Machines Boucherie NV, Izegem, Belgium. 'For such a two-phase injection procedure, the mold can be used Installed on a conventional injection molding machine, such as a 300-ton, two-component injection molding machine available from Engel Canada, Guelph, Ontario. After the molding process, the bristles of the toothbrush can be implanted into the head. The bristles are implanted in clusters using traditional fiber technology. Consumption cooperation by employees of the Intellectual Property Bureau of the Ministry of Economic Affairs 9 ink sheets-paper M quasi-standard home country one country I centimeter 4 67 73 4 A7 B7 (Seal and description of the main component representative symbols 10 Toothbrush bristle implant head 12 Handle 14 Front 16 Hole 18 Elastic material 20 Top 22 Bottom 24 Toothbrush front 26 Cover Area 28 exposed part 30 base 32 base 34 base 36 36 elastomer filling area 38 elastomer filling area 40 elastomer filling area 42 base 44 base 46 -Ordering. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs-9 This paper is again applicable to China National Standard (CNS) A4 (210X2.97 mm)