1341895 八、發明說明： 【發明所屬之技術領域】 本發明係有關於一種錄匙:胚’尤其是指在一桿體側面 上剖設外剖溝，並在外剖溝内端一側剖設一内剖溝，使得 對應該鑰匙胚之鎖具於使用上，其鎖孔不易遭開鎖工具強 行插入進行開鎖，而必須使用相對應之鑰匙方能順利進行 開鎖，係具有極佳防盜功效之鑰匙胚結構創新應用者。 【先前技術】 按，請參閱第十三圖所示，係為現有之一種鑰匙胚立 體圖，其主要係在一矩形桿體（9)的表面上，經由滾刀齒 刀滾輾刨出適寬與適深的溝槽（91)，該溝槽（91)只能由表 面往内形成上下同寬的直溝，或由表面往内形成上寬下窄 之倒八溝，之後，再將桿體（9)組設於鑰匙的前端以形成 一鑰匙桿，且於該桿體（9)上切削、凹具有諸多不同形狀 之齒溝（92)，使得於將該鑰匙之鑰匙桿插掣入相對應鎖具 之鎖孔中時，能轉動該鑰匙達到開鎖或上鎖之功效目的 者。 然而，上述鑰匙胚形成之鑰匙桿雖可達到利用切削、 凹具之各種不同形狀齒溝，供與相對應設計之鎖具的鎖孔 相配合插掣入内，以進行開鎖或上鎖之預期功效，但也在 其實際實施操作使用中發現，該鑰匙胚形成之鑰匙桿其表 面所具之溝槽要不是上下同寬的直溝就是上寬下窄之倒 八溝，使得與該鑰匙桿相對應之鎖具的鎖孔只能形成線條 狀而無法形成彎線狀，造成易令不肖人士利用扁平狀之開 鎖工具插掣入該鎖具之鎖孔内強行轉動進行開鎖，致使民 5 眾於財物上之重大損失’更甚至是嚴重的對民取之生命安 全產生莫大的戚脅、危害者。 緣是’發明人有鑑於此，秉持多年相關行業實際之設 計與製造經驗，針對現有之缺失予以研究改良，提供一種 創新的鑰匙胚，以期完全改善現有之所有缺失者。 【發明内容】 本發明係有關於一種鑰匙胚，其主要係分別在一桿體 之上、下端面近中央處之不同側，各剖設有往外斜向之外 剖溝’並於各外剖溝内端往中間剖設一比外剖溝寬且與外 剖溝呈銳角交又之内剖溝； 又’本發明亦可分別在一桿體之上、下端面不同側’ 各剖設有直向之外剖溝，並於各外剖溝之内端分別往中間 剖設有一與外剖溝呈銳角交叉之内剖溝，並於内剖溝之尾 端形成一弧fe端； 復’本發明亦可分別在一桿體之上、下端面不同側’ 各剖設有直向之外剖溝，並於各外剖溝内端往中間剖設一 與外剖溝呈垂直交叉之0剖溝，並於内剖溝之尾端形成尖 角端； 據此，不但可使鑰逛胚從造型上更富變化特性，以增 加產品的價值性，更令與該鑰匙胚相對應之鎖具的鎖孔亦 形成彎線狀，使不肖人士無法洲扁平狀之開鎖工具，強 行插入進行開鎖，使具有更佳的防盜效果。 【實施方式】 而為令本發明之技術手段能夠更完整且清楚的揭 露，兹請-併參閱所附®式及圖號’並詳細說明如下. 首先，本發明係有，-_匙胚’請參閱第一、二 圖所示，第一圖為本發明其一較佳實施例之鑰匙胚立體 圖，第二圖為本發明其一較佳實施例之鑰匙胚斷面剖視 圖，該鑰匙胚主要係在一桿體（1)之左側面上近底端面處 設有一弧凹狀溝槽（11)，且在桿體（1)之右側面上近頂端 面處亦設有一對稱之弧凹狀溝槽（11)，再者，分別在桿體 (1)之上、下端面近中央處之不同側，各剖設有往外斜向 之外剖溝（12)，並於各外剖溝G2)内端往中間剖設以形成 一與外剖溝（12)呈銳角交叉之内剖溝（13)，令該内剖溝 (13)之寬度比外剖溝（12)之寬度寬，且内、外剖溝（ι3)、 (12)恰呈一「厶」字造形。 於實施加工製造時，請參閱第一圖所示，係先在一矩 形桿體（1)工件的左側面上近底端面處及右側面上近頂端 面處，利用滾刀刀具分別滾輾刨出一弧凹狀溝槽（H);再 分別於該矩形桿體（1)工件之上、下端面上近中央處之不 同側，加工製造一外剖溝（丨2)及其内端之内剖溝（13),併 請參閱第三圖所示，係為本發明鑰匙胚其外剖溝及内剖溝 加工製造使用之刀具立體圖，主要係將諸多第一刀模 直線串接組設在刀座（3)上，第一刀模（2)上設有諸多呈直 線排列的第一刨刀（21)，每一第一刨刀（21)均具有一斜向 朝上之刀鋒，且每一第一刀模（2)上之所有第一刨刀（21) 其刀鋒係呈由前往後逐漸高凸狀，同時，令組設在刀座（3) 上呈一直線之所有第一刀模（2)上之所有第一刨刀（21)之 刀鋒亦呈由前往後逐漸高凸狀’之後，再將諸多第二刀模 (4)組設在刀座（3)上，該第二刀模（4)係直線串接組設在 前述之第一刀模（2)後方，第二刀模（4)上亦設有諸多呈直 線排列的第二刨刀（41)，每一第二刨刀（41)均具有一斜向 1341895 朝j及朝側之刀鋒，該朝側之刀鋒係與斜向朝上之刀鋒呈 預疋之銳角角度，且母一第二刀模（4)上之所有第二刨刀 (41)其斜向朝上刀鋒亦呈由前往後逐漸高凸狀，又每一第 厂刀模（4)上之所有第二刨刀（41)其朝側刀鋒係呈由前往 後逐漸側凸狀，同時，令組設在刀座（ 有第二刀模⑷上之所有第二刀⑷)之斜向朝 呈由刖往後逐漸高凸狀，且組設在刀座（3)上呈一直線之 所有第一刀模⑷上之所有第二削刀⑷）之朝側刀鋒亦呈 由前往後逐漸側凸狀，然後，併請參閱第四〜九圖所示， 均係為本發日㈣匙胚其外剖溝及内剖溝加工製造過程之 前視剖面示㈣’將矩形桿體⑴工件其加卫面朝下並採 固定局度平行推移方式，將矩形桿體⑴工件由刀座⑶之 :方往刀座⑶方向並沿著呈直線排列的第一刀模⑵及 J-尸⑷推移’令該矩形桿體⑴卫件往刀座⑶推移 伸超過矩形桿體⑴工件之加工面，而= :體，牛之加工面㈣一對應深度之外剖溝⑽（如 =之所广)楚又矩形桿體(1)工件繼續推移時，因第-刀 ，⑵之次-第i刀⑵）其斜向朝上 :刀υ之斜向朝上刀鋒高凸，故又可將矩形桿體(『)工 jni2)·刮—對應之深度（如第五圖所示）， ::推，當矩形桿體⑴工件被固定高度且平行推移至 一有第-刀模（2)之最後第1刀⑵）後，將促使所 刀模（2)之所有第一剖刀⑵）可逐漸將矩形桿體⑴工 之外剖溝（12)刨刮出一要求深度（ 次矩形㈣⑴4料人k賴⑷ 13418951341895 VIII. Description of the Invention: [Technical Field] The present invention relates to a keylogger: an embryo, in particular, an external section groove is formed on a side surface of a rod body, and a section is formed on the inner end side of the outer section groove. The internal sulcus is such that the lock corresponding to the key embryo is used, and the keyhole is not easily inserted and unlocked by the unlocking tool, and the corresponding key must be used for smooth unlocking, and the key embryo structure with excellent anti-theft function is used. Innovative application. [Prior Art] Press, please refer to the thirteenth figure, which is a perspective view of a prior art key embryo, which is mainly on the surface of a rectangular rod body (9), and is rolled out by a hob cutter And the deep groove (91), the groove (91) can only form a straight groove of the same width and the upper side from the surface, or form an upper and a narrow upper and lower groove from the surface, and then the rod The body (9) is set at the front end of the key to form a key rod, and the tooth body (92) is cut and recessed on the rod body (9), so that the key shaft of the key is inserted into the body. When the lock is in the lock hole of the lock, the key can be rotated to achieve the purpose of unlocking or locking. However, the key stem formed by the key embryo can reach various shapes of the groove using the cutting and the concave tool, and can be inserted into the locking hole of the correspondingly designed lock to perform the intended function of unlocking or locking. However, it is also found in the actual implementation of the operation that the key stem formed by the key embryo has a groove on the surface which is not a vertical groove which is wide and narrow, and is an upper and a lower narrow groove, so that it corresponds to the key bar. The lock hole of the lock can only form a line shape and cannot form a curved line shape, which makes it easy for the unscrupulous person to use the flat unlocking tool to insert into the lock hole of the lock to forcibly rotate and unlock, so that the public 5 is on the property. The major loss' is even more serious and poses a great threat to the life safety of the people. The reason is that the inventor, in view of this, adheres to the actual design and manufacturing experience of relevant industries for many years, and researches and improves the existing defects, and provides an innovative key embryo to completely improve all the existing missing. SUMMARY OF THE INVENTION The present invention relates to a key blank, which is mainly disposed on a different side of a rod body and a lower end near the center, each of which is cut outwardly and obliquely outwardly and is externally sectioned. The inner end of the groove is formed with an inner section groove which is wider than the outer section groove and which is perpendicular to the outer section groove; and the invention can also be respectively disposed on the upper side of the rod body and the different side of the lower end surface. Straightening outside the trench, and at the inner end of each outer trench, respectively, an inner trench is formed at an acute angle to the outer trench, and an arc is formed at the end of the inner trench; The invention can also respectively form a straight out-out groove on each of the upper side and the lower end of the upper end face, and a vertical cross-section with the outer cut groove at the inner end of each outer cut groove. The groove is formed, and a sharp end is formed at the end of the inner groove; accordingly, not only the key of the key can be changed from the shape, but also the value of the product is increased, and the lock corresponding to the key embryo is further The keyhole is also formed into a curved line shape, so that the unspeakable person cannot open the flat-shaped unlocking tool, forcibly inserting and unlocking, so that Has a better anti-theft effect. [Embodiment] In order to make the technical means of the present invention more complete and clear, please refer to - and refer to the attached ® formula and figure number ' and explain in detail as follows. First, the present invention is related to -_spoon embryo' Please refer to the first and second figures. The first figure is a perspective view of a key embryo according to a preferred embodiment of the present invention. The second figure is a cross-sectional view of a key embryo according to a preferred embodiment of the present invention. The key embryo is mainly An arc-shaped concave groove (11) is disposed on the left end surface of the left side of the rod body (1), and a symmetrical arc concave shape is also provided on the right side surface of the rod body (1). The groove (11), in addition, on the different sides of the rod body (1) and the lower end surface near the center, respectively, each of the outwardly obliquely outwardly dividing the groove (12), and in each of the outer cutting grooves G2 The inner end is cut in the middle to form an inner groove (13) which intersects the outer groove (12) at an acute angle, so that the width of the inner groove (13) is wider than the width of the outer groove (12), and The inner and outer grooves (ι3) and (12) are shaped like a "厶". For the implementation of the manufacturing process, please refer to the first figure, first on the left side of the workpiece on the left side of the rectangular rod body (1) near the bottom end surface and the right side surface near the top end surface, using a hob cutter to separate the planer An arc-shaped concave groove (H) is formed; and an outer cutting groove (丨2) and an inner end thereof are processed and manufactured on different sides of the rectangular rod body (1) on the upper and lower end faces of the workpiece. The inner section groove (13), and referring to the third figure, is a perspective view of the tool for manufacturing the outer and lower groove of the key embryo of the present invention, mainly by arranging a plurality of first cutters in series. On the seat (3), the first die (2) is provided with a plurality of first planers (21) arranged in a straight line, each of the first planers (21) having an upwardly directed blade edge, and each All of the first planers (21) on a first die (2) have a blade that is gradually convex from the front to the rear, and at the same time, all the first die set in a straight line on the seat (3) ( 2) After the first blade of the first planer (21) is also gradually raised from the front to the rear, then a plurality of second die (4) are set on the seat (3). The second die (4) is arranged in a straight line in the rear of the first die (2), and the second die (4) is also provided with a plurality of second planers (41) arranged in a straight line. A second planing knives (41) each have an oblique 1341895 toward the j and the side of the blade, the blade side of the blade facing the obliquely upwardly facing blade at an acute angle, and the second die (4) All the second planing knives (41) on the upper side of the blade are also gradually convex upwards, and all the second planers (41) on each of the first die (4) are facing the blade. The gradual convex shape is formed from the direction of travel, and at the same time, the slanting direction of the second knives (4) having the second dies (4) is gradually convex toward the rear, and is set in the slanting direction. The side blade edge of all the second cutting blades (4) on all the first die (4) on the tool holder (3) is also gradually convex from the side to the rear, and then see the fourth to the nine figure , are the front of the four (four) key embryos, the outer section of the trench and the inner section of the trench manufacturing process before the process of the cross-section (4) 'the rectangular rod body (1) workpiece with its defending surface facing down and adopting a fixed degree of parallel In the shifting mode, the rectangular rod body (1) workpiece is moved from the knife seat (3) to the knife seat (3) direction along the first die (2) and the J-corpse (4) arranged in a straight line to make the rectangular rod body (1) The seat (3) is stretched beyond the processing surface of the rectangular rod body (1), and the body is replaced by the groove (10) (for example, = wide) and the rectangular rod body (1) continues to move. When, because of the first knife, (2) - the i-th knife (2)), the oblique direction is upward: the oblique direction of the knife is upward and the blade is highly convex, so the rectangular rod body (") jni2) can be scraped. The depth (as shown in the fifth figure), :: push, when the rectangular rod body (1) workpiece is fixed height and parallel to a first knife (2) with the first knife (2), will promote the knife All the first cutting knives (2) of the mold (2) can gradually scrape out the required depth of the rectangular rib (12) outside the rectangular rod body (1) (sub-rectangular (four) (1) 4 material person k Lai (4) 1341895
刨刀（41)，則同樣地，因第二刀模（4)之最前端第二刨刀 (41)其斜向朝上刀鋒係比第一刀模（2)之最後第一刨刀 (21)之斜向朝上刀鋒高凸，且第二刀模（4)之最前端第二 包刀（41)其朝側刀鋒係比第一刀模（2)之最後第一创刀 (21)之側邊側凸，故第二刀模（4)之最前端第二刨刀（41) 其斜向朝上刀鋒可將矩形桿體⑴I件之外剖溝⑽再创 到-對應之深度，同時’第二刀模⑷之最前端第二刨刀 (41)其朝側刀鋒則可在矩形桿體⑴工件之外剖溝（⑵内 端刨刮一對應深度之内剖溝（13)(如第七圖所示），接 矩形柃體（1)工件繼續推移時，因第二刀模（4)之次一二 创刀（41)其斜向朝上刀鋒係比前―第二创刀⑷）之斜: 朝上刀鋒高凸，且其朝側刀鋒係比前―第二包彳刀⑷）之 侧刀鋒側凸，故次-第二_(41)之斜向朝上及朝側 ^可將矩形桿體⑴工件之外剖溝⑽及内剖溝⑽㈣ 之深度（如第八圖所示），依此類推，當矩形桿 ^(1)工件被13定*度且平行推移至所有第二刀模⑷之 =^刀（41)後’將促使所有第二刀模⑷之所有第 I，將矩形桿體⑴工件之外剖溝(12)及内 d溝（13)剖刮出-要求深度（如第九圖所示）。 面二^^㈣第十圖所示，由於該錄匙胚表 内戚二二二。凹°又形成一外剖溝(12) ’更可於外剖溝(12) C二=形^一銳角交又之之内剖溝（13)，使得與該 =:==亦形成f線狀，因此㈣人士 4鎖工具插掣入該鎖具之鎖孔内強 門鎖因破且：必須使用相對應之鑰匙方能順利進行 開鎖，因此其確具錢佳之防盜功效。 9 1341895 又，請參閱第十一圖所示，係為本發明其二較佳實施 例之鑰匙胚斷面剖視圖，該鑰匙胚主要係在一桿體〇)之 之上、下端面近中央處分別對應設有二弧凹狀溝槽（n)， 且分別於上、下端面上對應位於該二弧凹狀溝槽（11)之不 同側，各剖設有直向之外剖溝（12)，並於各外剖溝（12)之 内端分別往中間剖設有一與外剖溝（12)呈銳角之内剖溝 (13)，該内剖溝（13)可與外剖溝（12)呈尖角交叉，亦或呈 弧f角交叉，且内剖溝（13)之内溝壁（131)尾端往另一端 • 面弧翹，而内剖溝（13)之外溝壁（132)則往内溝壁（131)方 向逐漸弧曲縮合以使内剖溝（13)之尾端形成一弧翹端 (133)，斷面觀之，令内剖溝（ϊ3)尾端類呈豎起大拇指之 弧翹狀。 . 復，請參閲第十二圖所示，係為本發明其三較佳實施 1 例之鑰匙胚斷面剖視圖，該鑰匙胚主要係在一桿體（1)之 左側面上近頂端面處設有一弧凹狀溝槽（11)，且在桿體（1) 之右側面上近底端面處亦設有一對稱之弧凹狀溝槽 藝 （11)，再者，分別在桿體（1)之上、下端面上之不同側， 各剖設有直向之外剖溝（12)，並於各外剖溝（12)内端往中 間剖設一内剖溝（13)，令該内剖溝（13)之内溝壁（131)與 外溝（12)呈垂直之尖角狀或弧彎角狀，而内剖溝（⑶之 外溝壁（132)逐漸斜向内剖溝（13)之内溝壁（131)，並於内 剖溝（13)之尾端形成尖角端〇34)。 由上所述，本發明之結構組成及實施說明可知，本發 明具有如下優點： 1.由於本發明之錄匙胚於桿體表面不只剖設形成一外剖 溝，更於外剖溝内端一側剖設一内剖溝，使得該鑰匙胚 10 1341895 從造型上更富變化特性，因此該鑰匙胚確實可增加該產 品之價值性。 2.正如上所述，由於本發明之鑰匙胚於桿體表面剖設一外 剖溝之外，更於外剖溝内端一側剖設一内剖溝，使得與 該鑰匙胚相對應之鎖具的鎖孔亦形成彎線狀，因此不肖 人士無法利用扁平狀之開鎖工具插掣入該鎖具之鎖孔 内強行轉動進行開鎖，而必須使用相對應之鑰匙方能順 利進行開鎖，所以該鑰匙胚確實具有更佳之防盜功效。 綜上所述，本發明實施例確能達到所預期之使用功 效，又其所揭露之具體構造，不僅未曾見諸於同類產品 中，亦未曾公開於申請前，誠已完全符合專利法之規定與 要求，爰依法提出發明專利之申請，懇請惠予審查，並賜 准專利，則實感德便。The planer blade (41) is similarly the second blade (41) which is the front end of the second die (4), which is inclined upward toward the upper blade than the last first blade (21) of the first die (2) The obliquely upwardly facing blade is highly convex, and the front end of the second die (4) has a second blade (41) whose side blade is closer to the side of the last blade (21) of the first die (2) The side is convex, so the front end of the second die (4), the second planer (41), which is inclined upward toward the upper blade, can recreate the outer groove (10) of the rectangular rod body (1) to the corresponding depth, and at the same time The front end of the second die (4), the second planer (41), the side blade can be grooved outside the workpiece of the rectangular bar (1) ((2) the inner end of the planer is scraped within a corresponding depth (13) (as shown in the seventh figure) As shown in the figure), when the workpiece of the rectangular body (1) continues to move, the second knife (4) is the second to the second knife (41). The oblique upward direction is higher than the front second (4). Oblique: The upward blade is highly convex, and its side blade is convexer than the side of the front-second trowel (4). Therefore, the second-second (41) is inclined upward and toward the side. The depth of the rectangular rod body (1) outside the workpiece (10) and the inner section groove (10) (4) As shown in the eighth figure, and so on, when the rectangular rod ^ (1) workpiece is 13 degrees and parallel to all the second die (4) = ^ knife (41) 'will prompt all the second knife For all the first parts of the mold (4), the rectangular rod body (1) is cut out by the outer groove (12) and the inner d groove (13) - the required depth (as shown in the ninth figure). Face two ^ ^ (four) shown in the tenth figure, because the key in the embryo is 222. The concave portion forms an outer sulcus (12), and the outer sulcus (12) can be used to form a d-line (13), and an acute angle is intersected with the sulcus (13), so that the f-line is also formed with the =:== Therefore, (4) The person 4 lock tool is inserted into the lock hole of the lock. The strong door lock is broken: the corresponding key must be used to smoothly unlock the lock, so it has the security function of Qian Jia. 9 1341895 Also, as shown in FIG. 11 , is a cross-sectional view of a key embryo according to a second preferred embodiment of the present invention, the key embryo is mainly placed on the upper side and the lower end of the lower end. Correspondingly, there are two arc-shaped concave grooves (n) corresponding to the different sides of the two-arc concave grooves (11) on the upper and lower end faces, respectively, and each of the straight-shaped outer grooves (12) And an inner digging groove (13) is formed at an inner end of each outer digging groove (12) at an acute angle to the outer digging groove (12), and the inner ditches (13) can be combined with the outer ditches (13) 12) intersecting at a sharp angle, or intersecting at an arc f angle, and the inner end of the inner wall (13) is at the end of the groove wall (131) to the other end • the surface is curved, and the inner groove (13) is outside the groove wall (132) gradually condensing toward the inner trench wall (131) to form an arc-shaped end (133) at the end of the inner trench (13), and the cross-section is used to make the end of the inner trench (ϊ3) The class has a curved shape with a thumbs up. Referring to Figure 12, there is shown a cross-sectional view of a key blank of a preferred embodiment of the present invention, which is mainly on the left side of the left side of a rod (1). There is an arc-shaped concave groove (11), and a symmetrical arc-shaped concave groove art (11) is also arranged on the right end surface of the right side of the rod body (1), and further, respectively, in the rod body ( 1) on the different sides of the upper and lower end faces, each of which is provided with a straight outwardly dividing groove (12), and an inner cutting groove (13) is arranged at the inner end of each outer cutting groove (12). The inner trench wall (131) of the inner trench (13) is perpendicular to the outer trench (12) in a sharp angle or arcuate angle, and the inner trench (the outer trench (132) is gradually obliquely inward. The inner wall (131) of the groove (13) forms a sharp end end 34) at the end of the inner groove (13). From the above, the structural composition and the implementation description of the present invention show that the present invention has the following advantages: 1. Since the key implant of the present invention is not only formed on the surface of the rod body to form an outer section groove, but also the inner end of the outer section groove. An inner section groove is formed on one side, so that the key embryo 10 1341895 is more versatile in shape, so the key embryo can indeed increase the value of the product. 2. As described above, since the key embryo of the present invention has an outer section groove formed on the surface of the rod body, an inner section groove is formed on the inner end side of the outer section groove so as to correspond to the key embryo. The lock hole of the lock also forms a curved line shape. Therefore, the unspeakable person cannot use the flat unlocking tool to insert and lock into the lock hole of the lock to forcibly rotate and unlock, and the corresponding key must be used for smooth unlocking, so the key The embryo does have a better anti-theft effect. In summary, the embodiments of the present invention can achieve the expected use efficiency, and the specific structure disclosed therein has not been seen in similar products, nor has it been disclosed before the application, and has completely complied with the provisions of the Patent Law. And the request, the application for the invention of a patent in accordance with the law, please forgive the review, and grant the patent, it is really sensible.
11 1341895 【圖式簡單說明】 第一圖：本發明其一較佳實施例之鑰匙胚立體圖 第二圖：本發明其一較佳實施例之鑰匙胚斷面剖視圖 第三圖：本發明鑰匙胚加工製造使用之刀具立體圖 第四圖：本發明鑰匙胚製造過程之前視剖面示意圖 第五圖：本發明鑰匙胚製造過程之前視剖面示意圖 第六圖：本發明鑰匙胚製造過程之前視剖面示意圖 第七圖：本發明鑰匙胚製造過程之前視剖面示意圖 第八圖：本發明鑰匙胚製造過程之前視剖面示意圖 第九圖：本發明鑰匙胚製造過程之前視剖面示意圖 第十圖：本發明其一較佳實施例之立體使用示意圖 第十一圖：本發明其二較佳實施例之鑰匙胚斷面剖視圖 第十二圖：本發明其二較佳實施例之鑰匙胚斷面剖視圖 第十三圖：現有之鑰匙胚立體圖 【主要元件符號說明】 <本發明> (1) 桿體 (11) 弧凹狀溝槽 (12) 外剖溝 (13) 内剖溝 031) 内溝壁 (132) 外溝壁 (133) 弧翹端 (134) 尖角端 (2) 第一刀模 (21) 第一刨刀 (3) 刀座 (4) 第二刀模 (41) 第二刨刀 <現 有> (9) 桿體 (91) 溝槽 (92) 齒溝 1211 1341895 BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a key embryo according to a preferred embodiment of the present invention. FIG. 2 is a cross-sectional view of a key embryo according to a preferred embodiment of the present invention. FIG. Fig. 4 is a perspective view of the tool used in the manufacturing process. Fig. 5 is a front view showing the key blank manufacturing process of the present invention. Fig. 6 is a front view showing the key embryo manufacturing process of the present invention. Figure: Schematic diagram of the front view of the key blank manufacturing process of the present invention. FIG. 8 is a front view of the key blank manufacturing process of the present invention. FIG. 9 is a front view of the key blank manufacturing process of the present invention. FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 11 is a cross-sectional view of a key embryo according to a second preferred embodiment of the present invention. FIG. 12 is a cross-sectional view of a key embryo according to a second preferred embodiment of the present invention. FIG. Key embryo perspective view [Main component symbol description] <Invention> (1) Rod body (11) Arc concave groove (12) Outer groove (13) Inner groove 031) Inner groove wall (132) Outer groove wall (133) Arc end (134) Sharp end (2) First die (21) First planer (3) Tool holder (4) Second knife Mold (41) Second Planer <Existing > (9) Rod (91) Groove (92) Groove 12