1246450 五、發明說明（1) 【發明所屬之技術領域 本發明係有關於扳手，尤指 構。 勤擺頭扳手改良結 【先前技術】 人類自有文明以來’手工且就 =以來，扳手在手工具領域就；=位而自螺絲 承生活中常見的用品、家具，.或工、之地位，且於曰 作業工具，幾乎都會 所使用的機械、 的「扳手」，便成為現場工作者不栓、螺· 大小的螺栓與螺帽，自備有不同使用特性的工且组同。形式、 定位公告編號第421111號「活動扳頭扳手角度 利案’其扳頭體1之框接端12外緣形成為 固弧面，碎圓弧面的左半部形成一環設有齒部的卡掣部ΐ2ΐ 與呈光滑緣面之調節部122。並於該樞接端12與握柄件2之 接合端間另設置一掣制件3，該掣制件3 一端為呈门字型之嵌 槽部32，恰巧可跨置於接合端21之内緣處滑移，而其另端則 係内凹呈弧形狀之弧齒部31，恰巧可與扳頭體1之卡掣部1 呈嚙合構態。然該掣制件3另端呈弧形狀之弧齒部3丨係較為 内凹，使弧齒部31的二端的凸部31 a相對較為凸出，造成扳 頭體1僅可與握柄件2產生單邊約75 °的樞擺，因為扳頭體i 會受到凸部3 1 a的擋止限位。該扳頭體1無法與握柄件2產生1246450 V. INSTRUCTION DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to a wrench, and more particularly to a wrench. The swaying head wrench improved knot [previous technology] Since the human civilization, 'hands and since =, the wrench is in the field of hand tools; = the position of furniture, furniture, or work, which is common in the life of screws. Moreover, the "wrench" of the machine used in almost all of the work tools has become a bolt and nut for the field workers who are not bolted or screwed, and have their own characteristics and work. Form, Positioning Bulletin No. 421111 "Active wrench wrench angle case", the outer edge of the frame end 12 of the wrench body 1 is formed as a solid curved surface, and the left half of the broken circular arc surface forms a ring with teeth The clamping portion ΐ2ΐ and the adjusting portion 122 having a smooth rim surface, and a tamping member 3 is further disposed between the pivoting end 12 and the engaging end of the grip member 2, and the tamping member 3 has a gate shape at one end. The groove portion 32 is adapted to be slidable across the inner edge of the joint end 21, and the other end is an arc-shaped tooth portion 31 having an arc-shaped concave shape, which coincides with the latch portion 1 of the wrench body 1. In the meshing configuration, the arc-shaped tooth portion 3 of the other end of the curved member 3 is concave, so that the convex portions 31 a of the two ends of the curved tooth portion 31 are relatively convex, thereby causing the wrench body 1 Only a pivot of about 75° on one side can be produced with the grip member 2, because the wrench body i is blocked by the projection 3 1 a. The wrench body 1 cannot be produced with the grip member 2
1^· 第5頁 !24645〇 _ 1 11 — 九、發明說明（2) =，90。，樞擺，使得該習知的活動扳頭扳手並不適用於狹 二空間下操作，大幅降低了扳手的操作性能，操作使用上呈 有較多的限制。 八 參照第一圖及第二圖，該樞接端12右半部呈光滑緣面之 碉=部122必需略低於卡掣部121的齒根，如此掣制件3才可 順暢的左右滑移。若調節部丨22設為略高於卡掣部丨2 j的齒 根，掣制件3會受到調節部122的擋止而無法滑移至調節部 1 2 2的光滑緣面上。因此，使得該較為内縮的調節部1 2 2的肉 厚較卡掣邛1 21更為減少，該調節部1 2 2與轴孔1 3間的肉厚為 L。參照第三圖，顯示扳頭體i的樞接端丨2於扳動操作時的 力狀態，當扳手順時鐘方向扳動時，扳頭體i的受力段丨、 13b會直接承受扳動力。然受力段丨3b的肉厚L因結構限制而 大巾田的減少’故當施加於擺頭扳手的扳動力過大時，該受力 奴13b的肉壁極易產生裂痕14或破壞，嚴重的影響到扳手所 能承受的扭力值。為求定位結構的設置而犧牲了扳手最重要 的扭力值，明顯為一本末倒置的設計。該習知活動扳頭扳手 所衍生之種種缺失，實有加以研發改良之必要。 因此，本發明想排除或至少減輕先前技藝所遭遇的問 題。 參 【發明内容】 本發明之『活動擺頭扳手改良結構』所欲解決之技術問 題在於習知擺頭扳手的扳頭體僅可與握柄件產生單邊約7 5。 的搞擺，無法達到單邊90。的樞擺，並不適用於狹小空間内1^· Page 5 !24645〇 _ 1 11 — IX. Invention description (2) =, 90. The pivoting pendulum makes the conventional movable wrench is not suitable for operation in a narrow space, which greatly reduces the operating performance of the wrench and has more restrictions on operation. Referring to the first and second figures, the right half of the pivoting end 12 has a smooth rim surface. The portion 122 must be slightly lower than the root of the latching portion 121, so that the squeezing member 3 can smoothly slide left and right. shift. If the adjustment portion 22 is set to be slightly higher than the root of the latch portion j 2 j , the dam member 3 is blocked by the adjustment portion 122 and cannot be slid to the smooth rim surface of the adjustment portion 12 2 . Therefore, the thickness of the more retracted adjusting portion 1 2 2 is made smaller than that of the cassette 211, and the thickness between the adjusting portion 1 2 2 and the shaft hole 13 is L. Referring to the third figure, the state of the force of the pivoting end 丨2 of the wrench body i during the pulling operation is displayed. When the wrench is pulled clockwise, the force receiving sections 13, 13b of the wrench body i are directly subjected to the pulling force. . However, the thickness L of the force section b3b is reduced due to the structural limitation. Therefore, when the pulling force applied to the oscillating wrench is too large, the meat wall of the slave 13b is prone to cracks 14 or damage. It affects the torque that the wrench can withstand. In order to locate the positioning structure, the most important torque value of the wrench is sacrificed, which is obviously an inverted design. The various shortcomings derived from the conventional activity wrench are necessary for research and development. Accordingly, the present invention is intended to obviate or at least alleviate the problems encountered in the prior art. SUMMARY OF THE INVENTION The technical problem to be solved by the "improved structure of the movable oscillating wrench" of the present invention is that the wrench body of the conventional oscillating wrench can only produce a single side of about 75 with the grip member. The pendulum can't reach 90 on one side. Pivot, not suitable for use in tight spaces
第6頁 1246450 五、發明說明（3) 的操作。且扳頭體的 部與銷孔間的肉厚相 大時’驅動頭受力段 響到扳手所能承受的 限於卡掣結構的設置，使調節 當施加於擺頭扳手的扳動力過 易產生裂痕或破壞，嚴重的影 本發 才區部的第 該圓弧面 厚，該圓 間的肉厚 段的厚實 效的提昇 齒係較為 不會受到 右極擺， 提高了扳 其他 述與相關 樞接端受 對減少， 的肉壁極 扭力值。 種活動擺 齒，其第 齒根，其 齒的齒根 。當施加 較大的力 所能承受 的齒根南 止限位， 手可更適 能。 和本發明 顯明。 明係提供一 一區段設有 不高於#的 弧面不低於 為L1(L1>L) 肉壁可承受 了擺頭板手 凸出，且齒 卡掣件的擋 俾使擺頭扳 手的操作性 目的、優點 的附圖更加 頭扳手改良 二區段設有 弟三區段的 ’且第三區 扳動力於擺 曰 1，不易產 的扭力值。 於左、右二 而可與握柄 用於狹小空 結構，其驅 較内縮的圓 圓弧面則為 段的圓弧面 頭扳手時， 生裂痕或破 而其卡掣件 端面，故驅 產生單邊90 間内的操作 動頭的 弧面， 全肉 與銷孔 其受力 壞， 一側的. 動頭並 °的左_ ’大幅 的新穎特性將從以下詳細的描 【實施方式】 可件根據本發明的第-個實施例，該擺頭扳♦ 參照第五圖，該擺頭扳手3〇包括·一 50及一 +螌钍以 驅勁頭40、一握和 i ^ 驅動頭40的一端樞設於握柄50。卡掣件f 設於驅動頭4 0盥；n ^ ^ ^ 下拳件t 初嗎W畀握柄50間，亚可選擇性的限制驅動頭4〇與Page 6 1246450 V. Operation of the invention (3). And when the thickness of the body between the wrench body and the pin hole is large, the driving force receiving portion of the driving head is responsive to the setting of the latching structure which is limited by the wrench, so that the adjustment force applied to the swinging wrench is easy to crack. Or damage, the serious arc of the shadow area is thicker, and the thick and effective lifting tooth of the thick section of the circle is less likely to be subjected to the right pole swing, which improves the other and related pivotal ends. Subject to the reduction, the extreme value of the meat wall torque. The movable tooth, the root of the tooth, the root of the tooth. The hand can be more adaptable when a large force is applied to the tooth root south limit. And the present invention is apparent. The Ming Department provides one-to-one section with a curved surface not higher than #, which is not less than L1 (L1>L). The meat wall can withstand the swaying of the swaying hand, and the shackles of the toothed shackle make the swaying wrench The operational purpose and the advantages of the figure are further improved. The second section is provided with the third section of the third section, and the third zone is powered by the pendulum 1 and the torque value is not easy to produce. The left and right sides can be used with a grip for a narrow hollow structure, and when the circular arc surface that is inwardly retracted is a circular arc face wrench of a segment, the crack is broken or the end face of the clip is broken, so The arc surface of the operating head within 90 sides of the single side is generated, and the whole meat and the pin hole are weakly subjected to the force, and the one side of the moving head and the left side of the left _ 'large and novel characteristics will be described in detail below. According to the first embodiment of the present invention, the oscillating head wrench ♦ refers to the fifth figure, and the oscillating weight wrench 3 includes a 50 and a + 螌钍 to drive the head 40, a grip and the i ^ drive head 40 One end is pivoted to the handle 50. The clamping member f is disposed on the driving head 40 盥; n ^ ^ ^ under the fist t initial W 畀 grip 50, the sub-selectively limit the driving head 4 〇
第7頁 1246450 五、發明說明（4) 柄5 0間的相對樞擺關係。 驅動頭40包括有第一端及第二端，其第一端設有一可供 螺件設置的棘輪環41及單向棘動機構（圖中未示）。於第一個 實施例中該驅動頭40的面緣標示有記號42，該記號42的箭頭 方向係不出扳手的扳動方向，而非是空轉方向。其第二端設 有一樞部43，該樞部43的中段並橫向設有一銷孔44。同時參 照第=圖，該枢部43包括有一第一區段431、一第二區段432 及一第二區段433，該第一區段431設有齒，該第二區段432 设有較内縮的圓孤面，該第二區段4 3 2的圓弧面不高於齒的 齒根’該第二區段4 3 3的圓弧面則為全肉厚，沒有任何肉 的減少，該第三區段433的圓弧面不低於齒的齒根，參照P 七圖’第三區段433的圓弧面與銷孔44間的肉厚為 L1 (L1 >L)。值得注意的是，設於樞部43的齒相對位於擺頭扳 手30的板動方向端。於第一個實施中，擺頭扳手3〇的扳動方 向為順時鐘方向，故齒設於樞部4 3的第一區段4 31。 握柄50包括有第一端及第二端，其第一端設有一概呈u 字型的卡部51，該卡部51包括有二顎52，該二顎52的適處橫 向没有一穿孔53 ’二顎52間形成有一可供驅動頭40第二端容 置的開口 5 4。並藉一銷5 8穿設於穿孔5 3及驅動頭4 0的銷孔 44 ’該銷58中段的壓花紋581係迫緊於銷孔44，使驅動頭4参 的第二端樞設於握柄50的第一端。該第一端並轴向設一卡孔 55 ’該卡孔55由開口 54的端緣開放，並供一彈性體57及一鋼 珠5 6容置。其第二端可供使用者握持。 卡掣件6 0係設於驅動頭4 0與握柄5 0間，卡掣件6 〇 —侧的Page 7 1246450 V. Description of invention (4) Relative pivotal relationship between handles 50. The driving head 40 includes a first end and a second end, and the first end is provided with a ratchet ring 41 and a one-way ratchet mechanism (not shown). In the first embodiment, the face edge of the drive head 40 is marked with a mark 42 whose direction of the arrow does not extend in the direction of the wrench, rather than the direction of idling. The second end is provided with a pivot portion 43. The middle portion of the pivot portion 43 is laterally provided with a pin hole 44. Referring to FIG. 4, the pivot portion 43 includes a first section 431, a second section 432, and a second section 433. The first section 431 is provided with teeth, and the second section 432 is provided. The rounded surface of the second section 4 3 2 is not higher than the root of the tooth. The arc surface of the second section 4 3 3 is full fleshy and has no flesh. The arc surface of the third section 433 is not lower than the tooth root of the tooth, and the thickness between the arc surface of the third section 433 and the pin hole 44 is referred to as L1 (L1 > L). . It is to be noted that the teeth provided at the pivot portion 43 are located opposite to the plate end direction of the oscillating weight wrench 30. In the first embodiment, the oscillating weight of the oscillating weight wrench 3 is clockwise, so that the teeth are provided in the first section 4 31 of the pivot portion 43. The handle 50 includes a first end and a second end, and the first end is provided with a U-shaped card portion 51. The card portion 51 includes a second 52. The second portion 52 has no perforation in the lateral direction. An opening 54 for the second end of the drive head 40 is formed between the two sections 52. The embossing 581 of the middle portion of the pin 58 is pressed against the pin hole 44 by a pin 5 8 and is inserted through the pin hole 5 3 and the driving hole 40. The second end of the driving head 4 is pivoted at the second end. The first end of the handle 50. The first end is axially disposed with a card hole 55'. The card hole 55 is open by the end edge of the opening 54 and is received by an elastic body 57 and a steel ball 56. Its second end is for the user to hold. The latch member 60 is disposed between the driving head 40 and the grip 50, and the latch member 6 is 〇-side
1246450 五、發明說明（5) 二端設有擋緣61，並設有一珠孔62。卡掣件60的另側凸設有 齒63，齒63的齒根高於左、右二端面64、65。 又 參照第八圖，顯示卡掣件60的齒63嚙合於驅動頭4〇第一 區段431的齒，而限件了驅動頭4〇與握柄5〇間的相對位移。 且設於握柄50内的鋼珠56受彈性體57的彈抵而卡固於卡掣件 60的珠孔62内，俾使卡掣件6〇獲得確實的定位。1246450 V. INSTRUCTION DESCRIPTION (5) The two ends are provided with a retaining edge 61 and a bead hole 62 is provided. The other side of the latch member 60 is convexly provided with teeth 63, and the root of the teeth 63 is higher than the left and right end faces 64, 65. Referring again to the eighth drawing, the teeth 63 of the latch member 60 are engaged with the teeth of the first section 431 of the drive head 4, and the relative displacement between the drive head 4's and the grip 5'' is limited. The steel ball 56 disposed in the handle 50 is elastically abutted by the elastic body 57 to be engaged in the bead hole 62 of the latching member 60, so that the latching member 6 is reliably positioned.
參照第九圖，顯示驅動頭4〇的樞部43於扳動操作時的 力狀態，當擺頭扳手30順時鐘方向扳動時，驅動頭4〇的受力 段44a、44b會直接承受扳動力。然受力段44b的肉厚為全 厚li(li>l)，因為該第三區段433的圓弧面不低於齒的齒 根。當施加扳動力於擺頭板手3〇時，該 的 P 壁可承受較大的力量，不易產生裂痕或破壞，的厚貝〜· 擺頭扳手30所能承受的扭力值。 气们扠升了 ^照第十圖’當卡掣件6G受外力的推動 40的第二區段432時，卡製株Rfl m ^ ^Referring to the ninth figure, the force state of the pivoting portion 43 of the driving head 4〇 during the pulling operation is displayed. When the oscillating weight wrench 30 is pulled clockwise, the force receiving sections 44a and 44b of the driving head 4 会 are directly subjected to the pulling force. power. However, the thickness of the force section 44b is the full thickness li (li > 1) because the arcuate surface of the third section 433 is not lower than the root of the tooth. When the pulling force is applied to the oscillating wrench 3 ,, the P wall can withstand a large force, is not prone to cracks or damage, and the thickness of the yoke wrench 30 can withstand the torque value. The gas is lifted up. According to the tenth figure, when the 6G of the card is pushed by the external force 40, the second section 432 of the card 40, the plant strain Rfl m ^ ^
Ml，#田卞I件60的齒63會離開驅動頭4〇的齒 431 ’使用者可調整驅動頭在Q盘摇 夂日力筮I ^ a 動頭40與握柄5〇間的相對樞擺位移。 士卡掣件6°的齒63係較為凸出，且齒63的 件60的擋止限位，而可I握6柄5二二】4◦並不會受到卡掣 俾使擺隸年可產生單邊90。的左右樞擺， 手適用於狹小空間内的操作，大幅提高了· 個實明的第二個實施例。第二 三區段433。參照第十四圖示了取1設置驅動頭4〇的第 口 由於卡掣件60的齒63係較為凸Ml, #田卞 I 60 teeth 63 will leave the drive head 4 〇 teeth 431 'user can adjust the drive head in the Q disk shake 夂 筮 I ^ a between the head 40 and the handle 5 相对 relative pivot Pendulum displacement. The teeth of the 6° teeth 63 are more convex, and the teeth of the teeth 63 are blocked by the limit of 60, and the handle of the handle 6 can be held by the handle of the handle. Produces a single side 90. The left and right pivoting, the hand is suitable for operation in a small space, and the second embodiment is greatly improved. The second three sections 433. Referring to the fourteenth embodiment, the first opening of the driving head 4 is set. Since the teeth 63 of the latching member 60 are convex,
1246450 五、發明說明（6) 出’且歯63的齒根其协士 . _ 不會受到卡掣件60的拎…端面64、65 ’故驅動頭40並 ^ ^ 的擋止限位，而可與握柄50產生單邊90。 的左右樞擺，俾偻搞涵4 ^ υ 大巾5摇古*r k 4擺頭扳手可更適用於狹小空間内的操作， 大ΐ田k问了扳手的操作性能。 广Ϊ 土所述可以歸納出本發明具有以下之優點： 部的第一 ^段設有：動f 良結構』，其驅動頭的樞 圓弧面不高於齒的uc内縮的圓弧面，該 該0弧面不低於齒的齒根， 上厚 肉厚為li(li>l)。者旅Λ —又的0弧面與銷孔間的 厚實肉壁可承受較動=頭扳手時，其受力段· “了擺頭扳手所能承受的扭力值。 衣以的. 2.本發明之『活動擺頭扳手改良结構』，1 +螌杜 的齒係較為凸出，且m ρ 。構』其卡料一側 並不會受到卡ΐ株i:?根面於左、右二端面，故驅動頭 A ^ ^ 、擋止限位，而可與握柄產生單邊90。的 =擺，俾使擺頭扳手可更適用於狹小 ： 幅提高了扳手的操作性能。 的楝作大 觀ί，本發明極具產業上利用價值；且又未見有相 =，明出現於國内外刊物或公開使用，實已符ί ί J，規疋之積極及消極要件，理應准予發明專利。 | 夕阳Ϊ ^所述者，僅為本發明之較佳實施例而已，當不能以 置實施之範圍，故舉凡數值之變更或等效元件之 / 5又本發明申請專利範圍所作之均等變化與修飾，比 應仍屬本發明專利涵蓋之範轉。 白1246450 V. INSTRUCTIONS (6) Out of the tooth root of the 歯63 and its symposium. _ will not be subjected to the 端面...the end faces 64, 65' of the clamping member 60, so the driving head 40 and the blocking limit of the ^ ^ A single side 90 can be created with the handle 50. The left and right pivoting, 俾偻 涵 4 ^ υ large towel 5 shake ancient * r k 4 oscillating head wrench can be more suitable for operation in a small space, Datian k asked the operating performance of the wrench. According to the broad soil, the present invention has the following advantages: The first section of the section is provided with: a good structure of the movable body, and the pivotal surface of the driving head is not higher than the circular surface of the uc of the tooth. The 0 arc surface is not lower than the tooth root of the tooth, and the upper thick meat is li (li>1). Traveler - The thick flesh wall between the 0 arc surface and the pin hole can withstand the movement = the head wrench, the force section · "The torque value that the swing head wrench can withstand. Clothes. 2. In the invention, "the improved structure of the movable oscillating wrench", the tooth system of the 1 + 螌 Du is more convex, and m ρ. The structure of the card is not affected by the card stalk i: the root surface is left and right The end face, so the drive head A ^ ^, the stop limit, and the handle can produce a single side 90. = pendulum, so that the swing wrench can be more suitable for narrow: the width improves the operating performance of the wrench. Daguan, the invention is of great industrial value; and there is no such thing as the fact that it appears in domestic and foreign publications or in public use. It has already been ί ί, and the positive and negative elements of the regulations should be granted invention patents. The present invention is merely a preferred embodiment of the present invention, and variations in numerical values or equivalent elements are equivalent to variations in the scope of the present invention. Modifications, which are still covered by the patents of the present invention.
第10頁 1246450 圖式簡單說明 —~_ 【圖式簡單說明】 的驅動頭的前視圖 的驅動頭的右侧視 圖，表齒的齒根 第一圖為習知擺頭扳手 第二圖為習知擺頭扳手 與銷孔間的肉厚為L。 第三圖為習知擺頭扳手扳動狀態的部 第四圖為本發明的立體組合圖。 現圖 第五圖為本發明的立體分解圖。 第六圖為本發明的驅動頭的前視圖。 第七圖為本發明的驅動頭的左側視圖， 面與銷孔間的肉厚為L1。 表第三區段的圓弧 第八圖為本發明的正視圖，表驅 · 的樞擺。 項無法與握柄產生相對胃 第九圖為本發明扳動狀態的部份正剖 第十圖為本發明的正視圖，表驅動，。 擺。 頌可與握柄產生相對樞 第十一圖為本發明的部份侧剖視圖， 9 0 °的樞擺。 表驅動頭與握柄產生 第十二圖為本發明第二個實施例的立 第十三圖為本發明第二個實施例的立俨=合圖。 第十四圖為本發明第二個實施例的分解圖。 — 頭與握柄產生90。的樞擺。 ° 77側剖視圖，表驅動· 附件一為公告編號第421111號「活勤 構改良」專利案。 勒板頭扳手角度定位結 1246450 圖式簡單說明 【元件符號之簡單說明】 1 扳頭體 12 樞接端 121 卡掣部 122 調節部 13 軸孔 13a 受力段 13b 受力段 14 裂痕 30 擺頭扳 40 驅動頭 41 棘輪環 42 記號 43 樞部 431 第一區段 432 第二區 433 第三區段 44 極孑L 44a 受力段 44b 受力段 50 握柄 51 卡部 52 顎 53 穿孔 54 開口 55 卡孔 56 鋼珠 57 彈性體 58 銷 581 壓花紋 60 卡掣件 61 擋緣 6 2 珠孔 63 齒 64 端面 65 端面 L 調節部與轴孔間的肉 厚 LI 圓弧面與銷孔間的肉 厚Page 10 1246450 Simple illustration of the diagram -~_ [Simple description of the diagram] The right side view of the drive head of the front view of the drive head, the root of the tooth of the table is the second figure of the conventional oscillating wrench It is known that the thickness between the oscillating head wrench and the pin hole is L. The third figure is a part of the conventional swinging state of the swinging wrench. The fourth figure is a three-dimensional combination of the present invention. Figure 5 is a perspective exploded view of the present invention. The sixth figure is a front view of the drive head of the present invention. The seventh figure is a left side view of the drive head of the present invention, and the thickness between the face and the pin hole is L1. Arc of the third section of the table The eighth diagram is a front view of the invention, the pivot of the watch. The item cannot produce a relative stomach with the handle. The ninth figure is a partial cross-section of the pulling state of the present invention. The tenth figure is a front view of the present invention, which is table driven. put.颂 can be relatively pivoted with the grip. Figure 11 is a partial side cross-sectional view of the present invention, a 90 ° pivot. Table Driving Head and Grip Generation Twelfth Figure is a second embodiment of the present invention. Figure 13 is a second embodiment of the present invention. Figure 14 is an exploded view of a second embodiment of the present invention. — The head and grip produce 90. The pivoting pendulum. ° 77 side sectional view, table drive · Annex 1 is the patent number of the "Life Improvement" patent No. 421111. Le head wrench angle positioning knot 1246450 Brief description of the drawing [Simple description of the component symbol] 1 wrench body 12 pivot end 121 latching portion 122 adjustment portion 13 shaft hole 13a force section 13b force section 14 crack 30 swing head Pull 40 drive head 41 ratchet ring 42 mark 43 pivot 431 first section 432 second zone 433 third section 44 pole 44 L 44a force section 44b force section 50 grip 51 card portion 52 颚 53 perforation 54 opening 55 card hole 56 steel ball 57 elastic body 58 pin 581 embossed pattern 60 card element 61 retaining edge 6 2 bead hole 63 tooth 64 end face 65 end face L between the adjustment part and the shaft hole thickness LI between the arc surface and the pin hole thick
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