200540053 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種把手柄，特別係關於安裝於自行車之 轉向柱之上部，並裝設有把手桿之自行車用把手柄。 【先前技術】 於自行車之前叉之上端之轉向柱，安裝有用於將把手桿 固定於轉向柱之把手柄。先前之把手柄係將管體焊接製成 (例如，參照專利文獻丨之圖2)。具體言之，其包含：中空 之本體構件、固定於本體構件之基端之柱體固定部、及固 疋於本體構件之頂端與柱體固定部交錯之方向之把手桿固 定部。柱體㈣部與把手桿固定部均Μ狀構件，焊接接 合於本體構件之兩端。於該等各固定部形成狹縫，並藉由 央住狹縫並用螺栓鎖緊使狹縫變窄，而能夠固定轉向柱及 把手桿。 2 [專利文獻1]參照日本專利特開平5_147568號公報之圖 【發明内容】 於前述先前之構成φ，< 和 中由於把手柄係由焊接接合之3個 管體構件構成，因此能夠雜姓 ^ 月b约維持較鬲之剛性，但是難以使把 手柄輕量化。 本發明之課題在於，剩_认ώ 、+於自仃車用把手柄，維持其剛性 並實現輕量化。 發明1之自行車用扣车4 h 手柄係女裝於自行車之轉向柱之上 部，且裝設有把手桿之鉍知 車柄’其包含：中空之本體構件、 98972.doc 200540053 柱體安裝部、筒狀構件、柱體 部。柱體安裝部係設於本體構件之一端，實==裝 之安裝孔部，用來㈣… ^㈣上包含圓形 凸緣部，於凸緣部扣主-狀構件包含至少-個 安裝部接合，1鱼内… 外側之狀態下與柱體 件。柱體以料Λ體Λ向柱之本體構件係不同構 _之另-端，用=;;:rw，設於本 向者。 將把手杯文裝於與轉向柱交錯之方 於該把手柄中，於中空 部，於其圓m 之本體構件之•端設有柱體安裝 兮芮狀構件# *、孔部接合有包含凸緣部之筒狀構件。 安=!於凸緣部扣止於安裝孔部之外側之狀態下與 定、在此1 #轉向柱插穿其内部而藉由柱體固定部固 :。在此，由於與設於本趙構件之一端 筒狀構件包含凸緣部，因此即使用薄壁構 ::，亦能夠維持筒狀構件之高剛性。而且，於= 1M:止於安裝孔部之外側之狀態，所以筒狀構件之長声！ :!將安裝孔部之長度加上凸緣部之厚度之尺寸即可二:： 夠貫現柱體安裝部及筒狀構件之輕量化。故而，能夠维； 軸柄整體之剛性，實現輕量化。 此约維持 ^2之自行車用把手柄如發明1之轴柄，其中筒 係猎接法或釺焊接法接合於柱體安裝部。於該^ 下’㈣維持強度’並能將筒狀構件接合於安裝孔 於該情形下，由於凸緣部設於兩 立發明3之自行車用把手柄如發明之軸柄，其中 部係於兩端各設一個 ...... 、’ 98972.doc 200540053 端，因此更能提高筒狀構件之剛性。 發明4之自行車用把手柄如發明丨至3中任一項之軸柄， 其中凸緣部藉由熔接法或釺焊接法接合於安裝孔部。由於 筒狀構件係於凸緣部藉由焊接法或釺焊接法接合於安裝孔 部，因此能夠使各面彼此接合，且能夠將柱體安裝部和筒 狀構件穩固地接合。 發明5之自行車用把手柄如發明1至*中任一項之軸柄， 〃中柱體S]疋#係藉由溶接法或釺焊接法接合於柱體安裝 部。於該情形下’能夠維持強度，且能夠將柱體固定部接 合於柱體安裝部。 發明6之自行車用把手柄如發明⑴中任一項之軸柄， 其中把手桿安裝部包含：於本體構件之另一端於與前述安 裝孔部父錯之方向上形成略半圓形之安裝凹部，·接合於安 裝凹部之略半圓筒形狀之第1半圓筒部；包含與第!半圓筒 f㈣配置之第2半圓筒部之心構件；及將固定構件固 裝凹部之把手桿固定部。於該情形下，由純手桿 女〇由兩個半圓筒部份構成，因此把手桿之裝卸容易。 [發明效果] 根據本發明，由於與設於本幾構件之-端之安裝孔部接 合之筒狀構件包含凸緣部，因此即 ::;亦_持筒狀構件之高剛性。而且，：:處成:： 。二A°止於安裝孔部之外側之狀態’所《筒狀構件之長戶 ，、要為將安裝孔部之長度加上凸緣部之厚 - 能夠實現柱體安裳部及筒狀構件二、即可， 里亿因此，能夠維 98972.doc 200540053 持軸柄整體之剛性，實現輕量化。 【實施方式】 本發明之一實施形態所採用之自行車10，如圖丨所示， 包含車架11、以及安裝於車之前後可自由回轉之車輪 12、13。車架11包含主車架14，其係分別於前部和後部安 裝有可自由轉動之雙肩式避震前又15和懸臂式後又16。主 車架14包含於前部安裝可自由回轉之避震前叉15之轉向舵 管14a。避震前叉丨5包含向上部延伸之轉向柱15a，將轉向 柱1 5a回轉自如地支持於轉向舱管14a。 於避震前叉15之轉向柱15a，安裝有本發明之一實施形 態之把手柄20。把手柄20係安裝於轉向柱15a之上部，用 來將把手桿21裝設於轉向柱15a。 把手柄20如圖2至6所示，包含··中空之本體構件3〇、設 於本體構件30之一端（圖3及圖4之右端），並安裝有轉向柱 15a之柱體安裝部31、接合於柱體安裝部31之筒狀構件 32、設於柱體安裝部31之柱體固定部33、以及設於本體構 件30之另一端（圖3及圖4之左端）之把手桿安裝部34。 本體構件3 0例如使用鋁合金製之管體構件，其係衝壓成 型使兩端於交錯方向形成矩形剖面。 柱體安裝部31實質上包含圓形之安裝孔部4〇。柱體安裝 部31係將本體構件30之一端衝壓成型，形成矩形剖面。然 後’於衝壓成型後將其切斷加工成U字狀，且進一步藉由 對ϋ字之兩端向内側進行彎曲加工使其彎曲，形成安裝孔 部40 〇 98972.doc 200540053200540053 IX. Description of the invention: [Technical field to which the invention belongs] The present invention relates to a handlebar, in particular to a handlebar for a bicycle which is installed on the upper part of a steering column of a bicycle and is provided with a handlebar. [Prior Art] A steering column on the upper end of the front fork of a bicycle is provided with a handlebar for fixing the handlebar to the steering column. Previously, the handle was made by welding the pipe body (for example, refer to FIG. 2 of the patent document). Specifically, it includes a hollow body member, a column fixing portion fixed to the base end of the body member, and a handle fixing portion fixed in a direction where the top end of the body member intersects with the column fixing portion. Both the cymbal part of the cylinder and the fixed part of the handle bar are M-shaped members, and are welded to both ends of the body member. A slit is formed in each of these fixing portions, and the steering column and the handlebar can be fixed by centering the slit and tightening it with bolts to narrow the slit. 2 [Patent Document 1] Refer to Japanese Patent Application Laid-Open No. 5_147568. [Summary of the invention] The aforementioned previous configuration φ, < ^ Month b remains relatively rigid, but it is difficult to make the handle lighter. The subject of the present invention is to maintain the rigidity and weight reduction of the handlebars for self-driving cars. The 4h handlebar for bicycle buckle of invention 1 is a woman's upper part of the steering column of the bicycle, and a bismuth handlebar equipped with a handlebar is included, which includes: a hollow body member, 98972.doc 200540053 column mounting section, Cylindrical member and cylinder. The column mounting portion is provided at one end of the body member, and the mounting hole portion is actually used to ㈣ ... ^ 包含 includes a circular flange portion, and the flange-shaped main-shaped member includes at least one mounting portion. Joining, 1 fish inside ... with the pillar in the outer state. The body of the column is made of the material Λ, and the body of the column is the other end of the different _. Use = ;;: rw to set it to the original. The handle cup is mounted on the side of the handle staggered with the steering column. In the hollow part, a column is installed at the end of the body member of the circle m. The shape is attached to the hole part. A tubular member at the edge. Ann =! In a state where the flange portion is locked on the outside of the mounting hole portion, here, the # 1 steering column is inserted through the inside and fixed by the column fixing portion:. Here, since the cylindrical member provided at one end of the present Zhao member includes a flange portion, even if a thin-walled structure :: is used, the high rigidity of the cylindrical member can be maintained. And, = 1M: the state outside the mounting hole, so the long sound of the cylindrical member! :! You can add the length of the mounting hole and the thickness of the flange to the size. 2 :: It is enough to realize the light weight of the column mounting part and the cylindrical member. Therefore, it can maintain the rigidity of the overall shaft and reduce the weight. The bicycle handlebar of this bicycle is maintained at ^ 2, such as the shaft handle of the invention 1, in which the barrel is connected to the column mounting portion by the hunting method or the stern welding method. Under this condition, '㈣ maintain strength' and can join the cylindrical member to the mounting hole. In this case, since the flange portion is provided on the bicycle handlebar of the invention 3, such as the shaft handle of the invention, the middle portion is connected to the two Each end is provided with a ..., 98972.doc 200540053 end, so the rigidity of the cylindrical member can be improved more. The handlebar for a bicycle according to the invention 4 is the shaft handle according to any one of the inventions 1 to 3, wherein the flange portion is joined to the mounting hole portion by a welding method or a 釺 welding method. Since the cylindrical member is connected to the flange portion by the welding method or the osmosis welding method, the surfaces can be joined to each other, and the cylindrical mounting portion and the cylindrical member can be firmly joined. The handlebar for a bicycle according to the fifth invention is the shaft handle according to any one of the first to the ninth invention, and the 〃 中 柱 S] 疋 # is joined to the column mounting portion by a welding method or a 釺 weld method. In this case, the strength can be maintained, and the pillar fixing portion can be joined to the pillar mounting portion. The handlebar for bicycle according to invention 6 is like the shaft handle of any one of invention 其中, wherein the handlebar mounting portion includes: forming a slightly semi-circular mounting recess on the other end of the main body member in a direction away from the mounting hole. · A first semi-cylindrical part of a slightly semi-cylindrical shape joined to the mounting recess; a core member including a second semi-cylindrical part arranged with the first semi-cylinder f㈣; and a handle bar fixing part for fixing the fixing member to the recess. In this case, the pure lever 〇 is composed of two semi-cylindrical parts, so the mounting and dismounting of the lever is easy. [Effects of the Invention] According to the present invention, since the cylindrical member that is in contact with the mounting hole provided at the -end of the present member includes the flange portion, that is, ::; and _ holds the high rigidity of the cylindrical member. And, :: 处 成 ::. Two A ° ends at the outside of the mounting hole. "The long household of the cylindrical member must add the thickness of the mounting hole to the length of the flange-the column body and the cylindrical member can be realized. Second, you can, Li billion. Therefore, it can maintain the rigidity of the entire shaft handle and achieve weight reduction. [Embodiment] As shown in FIG. 丨, a bicycle 10 used in an embodiment of the present invention includes a frame 11 and wheels 12 and 13 that can be freely rotated before and after the bicycle is installed. The frame 11 includes a main frame 14 which is provided with freely rotatable front and rear shock absorbers 15 and 16 of a cantilever rear respectively at the front and rear. The main frame 14 includes a steering rudder tube 14a on which a shock-absorbing front fork 15 which is freely rotatable is mounted on the front portion. The suspension front fork 5 includes a steering column 15a extending upward, and the steering column 15a is rotatably supported by the steering cabin tube 14a. A steering handle 15a of the suspension front fork 15 is provided with a handlebar 20 according to an embodiment of the present invention. The handle 20 is attached to the upper portion of the steering column 15a, and the handle bar 21 is attached to the steering column 15a. As shown in Figs. 2 to 6, the handle 20 includes a hollow body member 30, provided at one end of the body member 30 (right end of Figs. 3 and 4), and a column mounting portion 31 of a steering column 15a is installed. A cylindrical member 32 connected to the column mounting portion 31, a column fixing portion 33 provided on the column mounting portion 31, and a handle bar mounted on the other end of the body member 30 (the left end of FIGS. 3 and 4)部 34。 34. The main body member 30 is, for example, a pipe body member made of aluminum alloy, which is punched into a rectangular cross section at both ends in a staggered direction. The pillar mounting portion 31 substantially includes a circular mounting hole portion 40. The pillar mounting portion 31 is formed by punching one end of the main body member 30 into a rectangular cross section. After that, it is cut and processed into a U-shape after punching, and further bending is performed by bending both ends of the ϋ character inward to form a mounting hole 40 〇 98972.doc 200540053
筒狀構件32係使用例如鋁合金製之薄壁管體構件，於兩 端包含扣止於安裝孔部40之外側之！對凸緣部32a、3几。 筒狀構件32係將於一端預先形成有凸緣部32a之管體構件 自安裝孔部40之一側插入，並將凸緣部32a扣止於安裝孔 部40之外侧後，將自另一側突出之部分衝壓成型形成凸緣 部32b，且於安裝孔部4〇之周圍與柱體安裝部31釺焊接合 者。此外，柱體安裝部31及筒狀構件32包含將筒狀構件32 固定於柱體安裝部31後形成之狹縫31a、32^夹緊該狹縫 31a、32c並使柱體固定部33與柱體安裝部31釺焊接合。 柱體固定部33包含夾緊狹縫31a、32c且上下排列配置之 2組螺栓安裝部33a及螺母部33b。該螺栓安裝部33&包含可 以穿過内六角孔螺栓即柱體固定螺栓35之螺栓通過孔Me 及可收納頭部之頭部收納部33d。此夕卜螺母部规包含旋 入柱體固定螺栓35之母螺紋33e。在此，#由將柱體固定 螺栓35安裝於螺栓安裝部33a並旋入螺母部33b，將把手柄 20安裝於轉向柱I5a。 把手桿安裝部34係將本體構件3〇之另—端衝壓成型，形 成矩形剖面。此外，於矩形剖面之中心部分，#由衝麼成 型使用來安裝後述之螺母構件仏之丨對螺母安裝部“a，， 向外侧突出形成u字狀。把手桿安裝部34於本體構件3〇之 另-端包含於與安裝孔部4G交錯之方向形成略半圓狀之安 裝凹部。此外，把手桿安裝部抑含：固定於安裝凹部 41之略半圓筒形狀之第！半圓筒部42、用來固定把手桿η 之固定構件43、 以及將固疋構件43固定於安裝凹部4〗之把 98972.doc -10- 200540053 手桿固定部44。 第1半圓筒部42係例如紹合金製之薄壁構件，於兩端包 含半圓凸緣部42a、42b。^半圓筒部42係於半圓凸緣部 42a、42b之周圍與衝壓成型部分釺焊接合。 固定構件43係例如鋁合金製之構件，用於將把手桿 緊於把手桿安裝部34加以固定。固定構件43包含與第^半 圓筒部42相對配置、並與把手捍21之外周面接觸之第2半 圓筒部仏。此外，固定構件43包含用來安裝例如内六角 孔螺栓即把手桿固定螺栓46之半圓形之i對螺栓安裝部 43b、43b。螺栓安裝部杨、仙包含可穿過把手桿固定螺 栓46之螺栓通過孔43 c。 把手桿固定部44包含螺合把手桿固定螺栓46之螺母構件 45。螺母構件45係鋁合金製之構件，與螺母安裝部3乜、 34b釺焊接合。 當將如上構成之把手柄20安裝於轉向柱…時，準備如 圖2所示之鎖緊螺母50與螺帽51。鎖緊螺母5〇包含略呈星 形之2個彈簧構件5〇a，其可以安裝於轉向柱…内之適宜 位置。此外’ 4 了防止分別安裝於轉向艇管…之上下端 之轴承（未作圖示）之晃動，將填塞把手柄2〇與轉向般管… 之縫隙之墊片53(^)安裝於轉向柱…。在該狀態下將接 合於柱體安裝部31之筒狀構件32安裝於轉向柱…。接 者’將柱體固定螺栓35輕輕旋入螺母部说，且將把手柄 固定於轉向柱15ae暫時固定把手柄2。後，將螺帽 轉向柱…之上端，再將固定螺栓55自螺帽51插 98972.doc 200540053 牙並紋入文裝於轉向柱15a内之鎖緊螺母50。將固定螺栓 55旋入^鎖緊螺母5〇，介以把手柄及塾片^按壓安裝於 轉向舵管14a之軸承，藉此能夠抑制軸承之晃動。安裝固 定螺才王55後’接著將暫時固定之柱體固定螺栓35緊緊旋入 螺母部33b，使轉向柱15a止動。The cylindrical member 32 is a thin-walled pipe body member made of, for example, an aluminum alloy, and both ends thereof are locked to the outside of the mounting hole portion 40! The flange portions 32a, 3a are a few. The tubular member 32 is inserted from one side of the mounting hole portion 40 of a pipe body member in which a flange portion 32a is formed in advance at one end, and the flange portion 32a is fastened to the outer side of the mounting hole portion 40, and then the other The side protruding part is press-formed to form a flange portion 32b, and it is welded to the column mounting portion 31 around the mounting hole portion 40. In addition, the pillar mounting portion 31 and the cylindrical member 32 include slits 31a and 32 formed after the cylindrical member 32 is fixed to the pillar mounting portion 31. The slits 31a and 32c are clamped and the pillar fixing portion 33 and The column mounting portion 31 is welded together. The column fixing portion 33 includes two sets of bolt mounting portions 33a and a nut portion 33b, which are clamped by the slits 31a and 32c and arranged in an up and down direction. This bolt mounting portion 33 & includes a bolt passage hole Me through which a hexagon socket hole bolt, i.e., a column fixing bolt 35 can be passed, and a head receiving portion 33d that can receive a head. In addition, the nut gauge includes a female thread 33e screwed into the column fixing bolt 35. Here, # the column fixing bolt 35 is mounted on the bolt mounting portion 33a and screwed into the nut portion 33b, and the handle 20 is mounted on the steering column I5a. The handle bar mounting portion 34 is formed by punching the other end of the main body member 30 into a rectangular cross section. In addition, in the center portion of the rectangular cross section, # is used for punching to form a nut member 对 described later, and the pair of nut mounting portions "a" protrudes outward to form a U-shape. The handle bar mounting portion 34 is formed on the main body member 30. The other end includes a slightly semicircular mounting recess in a direction intersecting with the mounting hole 4G. In addition, the handlebar mounting portion includes: a slightly semi-cylindrical shape fixed to the mounting recess 41! The fixing member 43 for fixing the handle bar η, and the handle fixing part 44 for fixing the fixing member 43 to the mounting recess 4 98972.doc -10- 200540053. The first semi-cylindrical portion 42 is made of, for example, a thin alloy. The wall member includes semi-circular flange portions 42a and 42b at both ends. The semi-cylindrical portion 42 is welded to the press-molded portion around the semi-circular flange portions 42a and 42b. The fixing member 43 is, for example, a member made of aluminum alloy, It is used to fasten and fix the handlebar to the handlebar mounting portion 34. The fixing member 43 includes a second half-cylindrical portion 配置 disposed opposite to the second half-cylindrical portion 42 and in contact with the outer peripheral surface of the handle 21. In addition, the fixing member 43 Contains For example, hex socket bolts, i.e., semi-circular i-pair bolt mounting portions 43b and 43b of the handlebar fixing bolt 46. The bolt mounting portions Yang and Xian include bolt passage holes 43c through which the handlebar fixing bolt 46 can be passed. The fixing portion 44 includes a nut member 45 that screws the handlebar fixing bolt 46. The nut member 45 is a member made of aluminum alloy and is welded to the nut mounting portions 3 乜 and 34b 釺. When the handle 20 is configured as described above, it is mounted on the steering column ..., prepare the lock nut 50 and nut 51 as shown in Fig. 2. The lock nut 50 includes two spring members 50a, which are slightly star-shaped, and can be installed in a suitable position in the steering column. In addition, '4' is used to prevent the bearings (not shown) mounted on the steering tube pipe from being shaken. The gasket 53 (^) which fills the gap between the handle 20 and the steering tube ... is installed on the steering column. .... In this state, the cylindrical member 32 joined to the column mounting portion 31 is mounted on the steering column .... Then, 'the column fixing bolt 35 is slightly screwed into the nut portion, and the handle is fixed to the steering column. 15ae temporarily fixes the handle 2. Then, turn the nut … On the upper end, insert the fixing bolt 55 from the nut 51 into 98972.doc 200540053 and thread into the lock nut 50 installed in the steering column 15a. Screw the fixing bolt 55 into the ^ lock nut 50 and pass By pressing the handle and the cymbal ^ on the bearing mounted on the steering rudder tube 14a, the bearing can be prevented from shaking. After installing the fixing screw king 55 ', then the temporarily fixed column fixing bolt 35 is tightly screwed into the nut portion 33b. The steering column 15a is stopped.
女裝把手桿21時，係將把手桿21安裝於第1半圓筒部 42，且進一步將固定構件43覆蓋於把手桿21上，藉由把手 才干固疋螺栓46將把手桿固定螺栓46旋入螺母構件45，而使 固定構件43固定，並固定把手桿21。 以下對製造如上構成之把手柄2 〇之製造工序之一例進行 說明。 在製造把手柄20時，如圖7(a)所示，準備作為預先切斷 之本體構件30之鋁合金製之管體構件58。為了減少衝壓成 聖時之變形，於該管體構件58上形成有安裝孔部4〇及安裝 凹部4 1之表面形成槽部6〇。 另然後，如圖7(b)所示，將作為柱體安裝部31及把手桿安 裴部34之部分衝壓成型，使其形成為矩形剖面。此外，與 同夺或於其他工序中’藉以衝壓成型形成用以安裝螺母 構件45之螺母安裝部34a、34b。 衝壓成型結束後，如圖7⑷所示，藉由切斷加工，於作 為安袋孔部40之部分，形成ϋ字狀之切口 61及作為安裝凹 部41之半圓形切口 62。 切斷加工結束後，如圖7⑷所示，進行使切口 61之直線 部分彎曲成Ϊ形之冑曲加X，使端部相對，形成安裝孔部 98972.doc 12 200540053 40。 在此狀態下，將作為柱體固定部33之2個棒狀構件63 釺焊接合，並將螺母構件45安裝於螺母安裝部34a、3仆並 釺焊接合。此外，將第1半圓筒部42釺焊接合於安裝凹部 41。 再者，於棒狀構件63上，預先形成有螺栓通過孔 33c、頭部收納部33d及母螺紋部33e。 最後’自其中一側將形成有單側之凸緣部32&之筒狀構 件32安裝於安裝孔部4〇，並將凸緣部32a扣止於柱體安裝 鲁 部31之外側面。然後，將自另一側突出之部分衝壓成型形 成凸緣部32b，使其扣止於柱體安裝部3丨之外側面。而如 圖7(e)所示，在安裝孔部40之周圍，將筒狀構件32釺焊接 合於柱體安裝部31，並形成狹縫32c、31a。據此，製成除 去固定構件43之把手柄20。 於如此構成之把手柄20中，由於與設於本體構件3〇之一 端之安裝孔部40接合之筒狀構件32包含凸緣部32a、32b， 因此即使用薄壁構件構成筒狀構件32，亦能夠維持筒狀構 φ 件32之高剛性。而且，由於凸緣部32a、32b係處於扣止於 安裝孔部40之外側之狀態，因此筒狀構件32之長度只要為 將安裝孔部40之長度凸緣部32a、32b之厚度之尺寸即可， 能夠實現柱體安裝部31及筒狀構件32之輕量化。因此，能 夠維持軸柄整體之剛性，實現輕量化。 [其他實施方式] (a)於前述實施形態中’係將把手桿安裝部34設計為包含 固定構件43之對開構造，但亦可仿照柱體安裝部3丨，採用 與包含狹縫之本體構件3 0 —體化構成之構造。 98972.doc -13- 200540053 (b)於前述實施形態中，作為接 人、 安0方法，採用了釺焊接 a法（釺焊接法之一例），但亦可採 木用通常之電性熔接或氣 體熔接等之焊接法。 ⑷於前述實施形態中’係藉由·彎曲加工形成安裝孔部， 但亦可藉由切削加工形成。 (d)於前述實施形態中，係於筒狀構件之兩端設置凸緣 部’但亦可僅於一端設置凸緣部。In the women's handlebar 21, the handlebar 21 is mounted on the first semi-cylindrical portion 42 and the fixing member 43 is further covered on the handlebar 21, and the handlebar fixing bolt 46 is screwed by the handle. The nut member 45 fixes the fixing member 43 and fixes the handle bar 21. An example of a manufacturing process for manufacturing the handle 20 configured as described above will be described below. When the handle 20 is manufactured, as shown in Fig. 7 (a), a pipe body member 58 made of an aluminum alloy is prepared as a body member 30 cut in advance. In order to reduce the deformation at the time of stamping and holiness, a mounting hole portion 40 and a mounting recess portion 41 are formed in the pipe body member 58 on the surface thereof. Then, as shown in Fig. 7 (b), the portions serving as the column mounting portion 31 and the handle lever safety portion 34 are press-formed to have a rectangular cross-section. In addition, the nut mounting portions 34a and 34b for mounting the nut member 45 are formed by stamping with the same or in other processes. After the press forming is completed, as shown in FIG. 7 (a), a cut-out 61 and a semi-circular cutout 62 as a mounting recess 41 are formed in the portion serving as the sack hole portion 40 by cutting. After the cutting process is completed, as shown in FIG. 7 (a), the straight portion of the cutout 61 is bent into a zigzag shape plus X, and the ends are opposed to form a mounting hole portion 98972.doc 12 200540053 40. In this state, the two rod-shaped members 63 as the pillar fixing portions 33 are welded together, and the nut member 45 is attached to the nut mounting portions 34a and 3a and welded together. The first semi-cylindrical portion 42 is welded to the mounting recess 41 by welding. In addition, the rod-shaped member 63 is previously formed with a bolt passage hole 33c, a head receiving portion 33d, and a female screw portion 33e. Finally, a cylindrical member 32 having a flange portion 32 & formed on one side is mounted on the mounting hole portion 40 from one side thereof, and the flange portion 32a is fastened to the outer side surface of the pillar mounting portion 31. Then, a portion protruding from the other side is press-formed to form a flange portion 32b, and the flange portion 32b is fastened to the outer side surface of the column mounting portion 3 丨. On the other hand, as shown in Fig. 7 (e), the cylindrical member 32 is welded to the column mounting portion 31 around the mounting hole portion 40 to form slits 32c and 31a. Based on this, the handle 20 with the fixing member 43 removed is manufactured. In the thus constructed handle 20, since the cylindrical member 32 engaged with the mounting hole portion 40 provided at one end of the body member 30 includes the flange portions 32a and 32b, even if the cylindrical member 32 is constituted by a thin-walled member, It is also possible to maintain the high rigidity of the tubular structure φ member 32. Furthermore, since the flange portions 32a and 32b are locked to the outside of the mounting hole portion 40, the length of the cylindrical member 32 is only required to be the size of the thickness of the flange portions 32a and 32b of the mounting hole portion 40. Yes, it is possible to reduce the weight of the pillar mounting portion 31 and the cylindrical member 32. Therefore, the overall rigidity of the shank can be maintained, and the weight can be reduced. [Other Embodiments] (a) In the foregoing embodiment, 'the handlebar mounting portion 34 is designed as a split structure including a fixing member 43, but it can also be modeled after the pillar mounting portion 3 丨 and a body member including a slit 3 0 — the structure of corporatization. 98972.doc -13- 200540053 (b) In the foregoing embodiment, as a method for accessing people and safety, the 釺 welding method a (an example of 釺 welding method) is used, but ordinary electrical welding or Gas welding and other welding methods. In the foregoing embodiment, '' is to form the mounting hole portion by bending, but it can also be formed by cutting. (d) In the foregoing embodiment, flange portions are provided on both ends of the cylindrical member, but flange portions may be provided only on one end.
【圖式簡單說明】 圖1係採用本發明之一實施形態之自行車之側面圖。 圖2係根據本發明之一實施形態之把手柄之立體圖。 圖3為其側面半截剖面圖。 圖4為其平面半截剖面圖。 圖5為其正面圖。 圖6為其背面圖。 圖7(a)〜(e)係表示其製造工序之一例之模式圖。 【主要元件符號說明】 10 自行車 11 車架 12, 13 車輪 14 主車架 14a 轉向舵管 15 避震前叉 15a 轉向柱 16 懸臂式後叉 98972.doc -14- 200540053[Brief description of the drawings] FIG. 1 is a side view of a bicycle adopting one embodiment of the present invention. FIG. 2 is a perspective view of a handle according to an embodiment of the present invention. Fig. 3 is a half cross-sectional view of the side. Fig. 4 is a plan half-section cross-sectional view thereof. Figure 5 is its front view. Fig. 6 is a rear view thereof. 7 (a) to (e) are schematic diagrams showing an example of the manufacturing process. [Symbol description of main components] 10 Bicycles 11 Frame 12, 13 Wheels 14 Main Frame 14a Steering Steering Tube 15 Suspension Fork 15a Steering Column 16 Cantilever Rear Fork 98972.doc -14- 200540053
20 把手柄 21 把手桿 30 本體構件 31 柱體安裝部 31a 狹縫 32 筒狀構件 32a，32b 凸緣部 32c 狹縫 33 柱體固定部 33a 螺栓安裝部 33b 螺母部 33c 螺栓通過孔 33d 頭部收納部 33e 母螺紋 34 把手桿安裝部 34a, 34b 螺母安裝部 35 柱體固定螺栓 40 安裝孔部 41 安裝凹部 42 第1半圓筒部 42a，42b 半圓凸緣部 43 固定構件 43a 第2半圓筒部 43b 螺栓安裝部 98972.doc -15- 200540053 43c 螺栓通過孔 44 把手桿固定部 45 螺母構件 46 把手桿固定螺栓 50 鎖緊螺母 50a 彈簧構件 51 螺帽 53 墊片 55 固定螺栓 58 管體構件 60 槽部 61 切口 62 半圓形切口 63 棒狀構件 98972.doc - 16-20 handles 21 handle bar 30 body member 31 cylinder mounting portion 31a slit 32 cylindrical member 32a, 32b flange portion 32c slit 33 cylinder fixing portion 33a bolt mounting portion 33b nut portion 33c bolt passing hole 33d head storage Portion 33e Female thread 34 Handlebar mounting portion 34a, 34b Nut mounting portion 35 Cylinder fixing bolt 40 Mounting hole portion 41 Mounting recessed portion 42 First semi-cylindrical portion 42a, 42b Semi-circular flange portion 43 Fixing member 43a Second semi-cylindrical portion 43b Bolt mounting part 98972.doc -15- 200540053 43c Bolt passage hole 44 Hand lever fixing part 45 Nut member 46 Hand lever fixing bolt 50 Lock nut 50a Spring member 51 Nut 53 Washer 55 Fixing bolt 58 Tube body member 60 Slot 61 notch 62 semi-circular cut 63 rod-shaped member 98972.doc-16-