M273524 v 八、新型說明： 【新型所屬之技術領域】 本創作係屬於自行車零部件之技術領域，尤指一種組M273524 v 8. Description of the new type: [Technical field to which the new type belongs] This creation belongs to the technical field of bicycle parts, especially a group
裝於車輪轂内，使後齒盤與車輪轂單向連結轉動之棘爪裝 置。 X 【先前技術】 請同時參閱第四、五圖所示，現有自行車之後輪軸（ φ A)上組裝有一後輪轂（5 0)以及一鏈輪支撐構件（6 0)，以供後輪以及後齒盤固定，另於後輪轂（5〇)與 鏈輪支撐構件（6 0 )之間設有一單向棘輪（7 〇 )，使 來自於後齒#正轉時之動力#以傳輸至後輪，並且使後齿 盤反轉時可以產生空轉而不影響後輪之運行。其中，該^ :棘輪（7 G )包括-設於後輪較（5 Q )内周壁之= 衩（71)，以及一設於鏈輪支撐構件（6〇) 一端並 且相應位於内齒環（川範圍内之棘輪體（72)，該 #棘輪體（7 2 )之外周圍以-具有彈性之c形扣環（7 4 ):住三支棘爪（7 3 )，而各棘爪（7 3 )之自由端係 置在内齒環（71)之棘齒（710)上，當後齒 盤正轉時’各棘爪（7 3 )即會扣入棘齒（7丄〇 )内， 使=輪較（5 〇)連同後輪一起轉動，反之，當倒踩踏板 专㈤盤反轉時，各棘爪（73)之自由端即會沿著内 衣（7 1 )之各棘齒（7丄〇 )跳動而空轉。 ’:：現有單向棘輪（7 0 )之結構具有數項缺失： 由於各棘爪（7 3 )係藉由-c形扣ί裒（7 4) 4 M273524 一起扣設於棘輪體（7 2 )上，故當C形扣環（7 4 )產 生彈性疲乏時，即會影響各棘爪（7 3 )與内齒環（7工 )之咬合，需予更換。 2 ·由於其棘輪體（7 2 )需要設以供棘爪（7 3 ) 偏轉之空間，故其可設置之棘爪（7 3 ) t量有限，並且 各棘爪（7 3 )中段需設以供c形扣冑（7 4 )扣設之凹 槽，致使負荷較低，當其安裝於如登山車、越野車等較大 負荷之車種時，極易斷裂而不堪使用。 3 ·倘若要增加單向棘輪（7 〇 )之負荷，使其可以 適用於登山車、越野車時，必需加大棘爪（7 3 )之體積 ，並且，於鋁合金製成的後輪轂（5 0)内周壁另需結入 鐵製的内齒環（71)，以供棘爪（73)推頂，：：二 重量。 9 是以，現有自行車之單向棘輪因為具有上述缺失而 加以改良之必要。 【新型内容】 為了改善上述缺失，本創作之主要目的在於提供一種 ^棘爪不互相關聯，可以減輕重量、增加負荷並且精^ 高之車輪轂之棘爪裴置。 又 基於上述目的，本創作之主要技術手段係於自行車 車輪較與鏈輪支撑構件之間設—棘爪裝置，車輪數鄰近= 輪支擇構件該端凹設有-容#，所㉛之棘爪裝置包括 個凹設於容槽内周壁之嵌槽；一設於鏈輪支撐構件其中— 端，並且相應位於容槽範圍内之棘輪，該棘 〜,緣設 M273524 筆 」有％狀设置的單向棘齒部；數個分別設於後槽内之棘爪件 _ 丨件L括以犬出之樞軸樞設於嵌槽槽底之棘爪本 _ 、彈力推頂棘爪本體常態壓制於單向棘齒部之彈簧 〇 只施上述技術手段以後，本創作可以衍生數項優點： 1 ·由於各棘爪本體係分別獨立，藉由一彈簧保持壓 制於棘輪之狀態，即使有其中一扭力彈簧彈性疲乏時，仍 春不影響其他棘爪本體運作，而可以繼續使用，藉以改善現 有產品c型扣環彈性疲乏時，即無法使用之缺失。 2·由於各棘爪本體係樞設於車輪轂上而卡制於鏈輪 支撐構件之棘輪上，故其可設置之數量較多，具有較大的 負荷力，適用於登山車、越野車等高負荷之車種。以改善 現有產品可設置之棘爪數量太小，負荷力太小之缺失。 3 ·由於本創作各棘爪本體係樞設於車輪穀上，而推 抵於鏈輪支撐構件之棘輪，故在車輪轂内周緣不需要另外 φ 增設整環鋼製品，故可以減輕重量，降低騎乘者的負擔。 【實施方式】 請參閱第一圖所示，本創作所提供之車輪轂之棘爪裝 置（1 )係設於自行車之車輪轂（3 〇)與鏈輪支撐構件 (40)之間，車輪轂（30)鄰近鏈輪支撐構件（4〇 )該端凹設有一容槽（31)，所述之棘爪裝置（1)係 包括數個凹設於容槽（31)内周壁之嵌槽（31〇)， 樞設於各嵌槽（3 1 0 )内之棘爪件（i 〇 )、設於鏈輪 支撐構件（4 0 )其中一端並且相應位於容槽（3 1 )範 6 M273524 圍内之棘輪（41) ’該棘輪（41)之外周緣設有環狀 設置的單向棘齒部（4 1 〇 )，各棘爪件（丄〇 )係相靡 卡設於單向棘齒部（410)。 u 其中’所述棘爪件（1 〇 )進一步包括一棘爪本體（ 11)、一扭力彈簧（12)、以及一鋼片（is)，今 棘爪本體（1 1 )為一派形塊體，其中—端突設一樞軸（ 110)，棘爪本體（11)設有枢軸（11〇)該端並 且凹設有卡槽（111)，以供所述扭力彈箬（12)套 Λ於樞軸（1 1 〇)上，並且以其中一端鉤設於卡槽（1 1 1 )内，使棘爪本體（i )常態保持壓向棘輪（4工 )之單向棘齒部（41〇)，而所述之鋼片（13)係以 耐疲勞、耐蝕性均極佳的磷青銅所製成，其貼附在嵌槽（ 3 1 0 )周壁，並且夾制於棘爪本體（i i )與嵌槽（3 1 0 )周壁之間。 θ 當踩踏自行車之踏板，使後齒盤正轉時，鍵輪支樓構 件（4 0 )即為正轉而使棘輪（4工）與各棘爪本體（丄 1 )之自由端卡制一起旋轉，又當踩踏踏板為反轉時即 會形成空轉。 述可知，由於各棘爪本體（1 1 )係分別獨立而 藉由扭力彈筹（1 Q/全 / 1 2 )保持壓制於棘輪（4 1 )，即使有 其中一扭力彈箐 貫（1 2 )弹性疲乏時，仍不影響其他棘爪 本體’（1 1 )之運作，而可以繼續使用。 並且由於各棘爪本體（1 1 )係樞設於車輪轂（3 〇 卡制於鏈輪支撐構件（40)之棘輪（41)上 7 M273524 ，故其可設置之數量較多，而具有較大的負荷力，適用 登山車、越野車等高負荷之車種。 【圖式簡單說明】 第一圖係本創作之局部立體外觀分解示意圖。 第二圖係本創作之局部側視剖面示意圖。 第三圖係本創作之斷面示意圖。 第四圖係現有自行車輪轂之局部側視剖面示意圖。 第五圖係現有自行車輪轂之斷面示意圖。A pawl device which is installed in a wheel hub to rotate the rear gear and the wheel hub in one direction. X [Prior art] Please also refer to the fourth and fifth figures, a rear wheel hub (50) and a sprocket support member (60) are assembled on the rear axle (φ A) of the existing bicycle for the rear wheel and the rear The tooth plate is fixed, and a one-way ratchet (70) is provided between the rear wheel hub (50) and the sprocket support member (60), so that the power from the rear teeth #forward rotation is transmitted to the rear wheels. And, when the rear gear is reversed, idling can be produced without affecting the operation of the rear wheels. Wherein, the ^: ratchet wheel (7 G) includes-provided on the inner peripheral wall of the rear wheel (5 Q) = 衩 (71), and one provided on one end of the sprocket support member (60) and correspondingly located on the inner ring gear ( The ratchet body (72) within the Sichuan range, the outside of the # ratchet body (7 2) is surrounded by an elastic c-shaped buckle (7 4): three pawls (7 3) are held, and each paw ( The free end of 7 3) is attached to the ratchet teeth (710) of the inner ring gear (71). When the rear tooth disk is rotating forward, each pawl (7 3) will buckle into the ratchet teeth (7 丄 〇). Make the wheel turn (50) rotate with the rear wheel. On the other hand, when the pedal is turned backwards, the free end of each pawl (73) will follow the ratchet teeth of the underwear (7 1). (7 丄 〇) beating and idling. ':: The structure of the existing unidirectional ratchet (7 0) has several missing items: Because each pawl (7 3) is connected by a -c-shaped buckle (7 4) 4 M273524 They are buckled together on the ratchet body (7 2), so when the C-shaped buckle (7 4) is elastically fatigued, it will affect the engagement between each pawl (7 3) and the inner ring gear (7 workers). Replace. 2 · Because its ratchet body (7 2) needs to be provided for deflection of the pawl (7 3) Space, so the amount of pawl (7 3) t that can be set is limited, and the middle section of each pawl (7 3) needs to be provided with a groove for c-shaped buckle (7 4) buckle, resulting in lower load. When it is installed on a heavy-duty vehicle such as a mountain bike or off-road vehicle, it will easily break and become unusable. 3 • If the load of the unidirectional ratchet (70) is increased, it can be applied to mountain bikes and off-road vehicles. At this time, the volume of the pawl (7 3) must be increased, and the inner peripheral wall of the rear wheel hub (50) made of aluminum alloy must also be connected with an iron ring gear (71) for the pawl (73). ) Pushing up :: two weights. 9 Therefore, the existing unidirectional ratchets of bicycles need to be improved because of the above-mentioned deficiencies. [New content] In order to improve the above deficiencies, the main purpose of this creation is to provide a detent Interrelated, it can reduce the weight, increase the load, and increase the detent of the wheel hub. Also based on the above purpose, the main technical means of this creation is to set the detent mechanism between the bicycle wheel and the sprocket support member. , The number of wheels is adjacent = the end of the wheel support member is recessed有-容 #, the pawl device includes a recess recessed in the inner peripheral wall of the tank; a ratchet wheel which is provided at the end of the sprocket support member and correspondingly lies within the range of the tank. "Set M273524 pen" has a unidirectional ratchet part with a% -like setting; several pawl pieces set in the rear slot _ 丨 L includes a pawl book which is pivoted at the bottom of the recessed slot by a dog shaft_ 2. The spring that pushes the pawl body normally pressed against the unidirectional ratchet teeth. After applying the above-mentioned technical methods, this creation can derive several advantages: 1 As each pawl system is independent, it is maintained by a spring. In the state of being pressed in the ratchet, even if one of the torsion springs is fatigued, the spring does not affect the operation of the other pawl bodies, and can continue to be used to improve the lack of unusability when the elasticity of the existing c-type buckle is fatigued. 2. Since each pawl is pivoted on the wheel hub and locked on the ratchet of the sprocket support member, it can be installed in a large number and has a large load force, suitable for mountain bikes, off-road vehicles High load vehicles. To improve the existing products, the number of detents that can be set is too small, and the load is too small. 3 · As the pawl system of this creation is pivoted on the wheel valley and pushes against the ratchet of the sprocket support member, there is no need to add a whole ring steel product at the inner periphery of the wheel hub, so it can reduce weight and reduce The burden for the rider. [Embodiment] Please refer to the first figure, the pawl device (1) of the wheel hub provided by this creation is located between the wheel hub (30) of the bicycle and the sprocket support member (40), and the wheel hub (30) A receiving groove (31) is recessed adjacent to the end of the sprocket support member (40), and the detent device (1) includes a plurality of recessed grooves recessed in the inner peripheral wall of the receiving groove (31) ( 31〇), a pawl piece (i 〇) pivotally located in each indentation groove (3 1 0), one end of the sprocket support member (40), and correspondingly located in the receptacle groove (3 1) Fan 6 M273524 Inner ratchet (41) 'The outer periphery of the ratchet (41) is provided with a ring-shaped unidirectional ratchet portion (4 1 〇), and each pawl member (丄 〇) is snapped on the unidirectional ratchet. Department (410). u wherein 'the pawl member (10) further includes a pawl body (11), a torsion spring (12), and a steel sheet (is), and the pawl body (1 1) is a faction-shaped block body Among them, one end is provided with a pivot (110), the pawl body (11) is provided with the pivot (11), and the end is recessed with a clamping slot (111) for the torsion spring (12) sleeve Λ It is pivoted on the pivot (1 1 0), and one end is hooked into the slot (1 1 1), so that the pawl body (i) is normally kept pressed against the unidirectional ratchet portion (41) of the ratchet (4 workers). 〇), and the steel sheet (13) is made of phosphor bronze with excellent fatigue resistance and corrosion resistance, which is attached to the peripheral wall of the recessed groove (3 1 0) and clamped to the pawl body ( ii) and the peripheral wall of the slot (310). θ When the pedal of the bicycle is stepped on to make the rear gear rotate forward, the key wheel support member (40) is turned forward and the ratchet (4 workers) is clamped with the free end of each pawl body (丄 1). Rotate and idling occurs when the pedal is reversed. As can be seen from the description, since each pawl body (1 1) is independent, it is kept pressed against the ratchet (4 1) by a torsion spring (1 Q / full / 1 2), even if one of the torsion springs penetrates (1 2 ) When the elasticity is fatigued, it still does not affect the operation of other pawl bodies' (1 1), and can continue to be used. And since each pawl body (1 1) is pivotally mounted on the wheel hub (30 locked on the ratchet wheel (41) of the sprocket support member (40) 7 M273524), it can be installed in a large number, and Large load capacity, suitable for high-load vehicles such as mountain bikes and off-road vehicles. [Simplified illustration of the drawing] The first picture is a schematic illustration of the partial three-dimensional appearance of this creation. The second picture is a partial side view of this creation. The third figure is a schematic sectional view of this creation. The fourth figure is a partial side sectional schematic view of an existing bicycle hub. The fifth figure is a schematic sectional view of an existing bicycle hub.
【主要元件符號說明】 (1 )棘爪裝置 （1 0 )棘爪件 (1 1 )棘爪本體 （1 1 0 )樞軸 (111)卡槽 (13)銅片 (31)容槽 (1 2 )扭力彈簧 (3 0 )車輪轂 (3 1 0 )嵌槽 (4 0 )鏈輪支撐構件（4 1 )棘輪[Description of main component symbols] (1) Pawl device (1 0) Pawl piece (1 1) Pawl body (1 1 0) Pivot shaft (111) Clamping slot (13) Copper sheet (31) Receiving slot (1 2) Torsion spring (3 0), wheel hub (3 1 0), recess (4 0), sprocket support member (4 1), ratchet
(410)棘齒部 （50)後輪轂 (60)鏈輪支撐構件（70)單向棘輪 (7 1 )内齒環 （7 1 0 )棘齒 (7 2 )棘輪體 （7 3 )棘爪 (7 4 ) C形扣環 （A )後輪軸(410) Ratchet portion (50) Rear hub (60) Sprocket support member (70) Unidirectional ratchet (7 1) Internal gear ring (7 1 0) Ratchet (7 2) Ratchet body (7 3) Paw (7 4) C-shaped retaining ring (A) rear axle