M399044 五、新型說明： 【新型所屬之技術領域】 本創作係關於一種自行車心軸之軸承。 【先前技術】 、轴承係機械結構t，常見設於兩轉動元件之辅助零件，用 以令躺元件之嶋動概，減少機械損耗。 • 制軸承例如TW_28G號專利所揭，其第4圖揭示習 • 用軸承之使用狀態，可見習用軸承之内殼911除了内表面會與 轉轴930接觸而承受徑向應力外，該内殼9ιι更會承受傳動元 件940之階面所給予的軸向應力，如此會導致該内殼叫易受 軸向應力作用而致略微歪斜，輕則導致軸承運轉不順，重則當 轉軸930 n軌轉且應力過大時，有致元件獅、受損或損壞 之虞。 、、 冑鑑於此，如何確絲承受力啦地轉動，自係本業界人 — 士亟待努力之方向。 【新型内容】 本創作之主要目的係提供—種可降低機械損耗的自行車 心軸之軸承。 ，為了達成上述目的所提供之自行車心軸之軸承包括一環 ^卜成秘喊、以動件及-鑛獅件。於該内、 夕殼之間圍構有一滾動槽，且該内殼具有一頂面及一内環面， 雜滾動件係可轉動地設於該滾動槽内，令内、外殼可相對- 3 M399044 軸線轉動，該轉動輔助件具有一環形管部及一環形擋止部，該 環形管部係套設於該内殼内，該環形管部具有一外環面，該外 環面係供與内環面相抵靠，該擋止部係設於該環形管部一端， 且該擋止部係自該環形管部之周緣徑向延伸，該擋止部更覆蓋 該内殼頂面之至少一部分。 藉此，減少内殼承受軸向應力情形，從而使得内殼受力平 均且可順利地相料殼轉動，糊減少機械損耗。 【實施方式】 以下將糟由較佳實_朗本創作之結構·及其預期 達成之功效，惟非用以限制本創作所欲保護之範嘴，合先敛明。 請參考圖1至圖6。在本創作之較佳實施例中，該自行車 心軸之轴承包括—獅外殼1G、—麻蓋2 '—環形内殼加、 多個滚動件3G、—轉動_件4G及至少-雜油封50。 本創作卿該肢1G、_ 2G與難承蓋2係相對_ 设置者’該外殼K)外係供設置—該軸承蓋2，_殼2〇M399044 V. New description: [New technical field] This creation is about a bicycle mandrel bearing. [Prior Art] The bearing mechanical structure t is usually provided as an auxiliary part of the two rotating elements, so as to reduce the mechanical loss of the lying element. • The bearing is disclosed, for example, in the TW_28G patent, and the fourth figure discloses the state of use of the conventional bearing. It can be seen that the inner casing 911 of the conventional bearing has a radial stress in addition to the inner surface contacting the rotating shaft 930. 9 ι will further withstand the axial stress given by the step of the transmission element 940, which will cause the inner casing to be susceptible to axial stress and slightly skewed, which will result in the bearing not running smoothly, and when the shaft 930 n is rotated When the stress is too large, there is a flaw in the component lion, damage or damage. 、 、 胄 胄 胄 胄 胄 , 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 胄 如何 如何 如何 如何 如何 如何 如何 如何 如何[New content] The main purpose of this creation is to provide a bearing for a bicycle mandrel that reduces mechanical wear. The bearing of the bicycle mandrel provided for the above purpose includes a ring of Bu Cheng, the moving parts and the - lion pieces. A rolling groove is defined between the inner and outer casings, and the inner casing has a top surface and an inner annular surface, and the miscible rolling member is rotatably disposed in the rolling groove, so that the inner and outer casings are opposite to each other - 3 The rotation of the M399044 has an annular tube portion and an annular stop portion. The annular tube portion is sleeved in the inner casing. The annular tube portion has an outer annular surface, and the outer annular surface is provided for The inner ring surface abuts, the stopping portion is disposed at one end of the annular pipe portion, and the stopping portion extends radially from a circumference of the annular pipe portion, and the stopping portion covers at least a portion of the top surface of the inner casing . Thereby, the axial stress of the inner casing is reduced, so that the inner casing is stressed uniformly and the phase shell can be smoothly rotated, and the paste reduces mechanical loss. [Embodiment] The following is the result of the structure created by the better version of Langben and its intended effect, but it is not used to limit the scope of the creation of this creation. Please refer to Figure 1 to Figure 6. In a preferred embodiment of the present invention, the bicycle mandrel bearing includes a lion shell 1G, a hemp cover 2'-ring inner casing, a plurality of rolling members 3G, a rotating_piece 4G, and at least a miscellaneous oil seal. 50. The creation of the 1G, _ 2G and difficult cover 2 series relative _ setter 'the outer shell K) external set - the bearing cover 2, _ shell 2 〇
供f 一轴件（未繪示），鋪元件係可相對該婦轉動I 於該内、外殼之間圍構有—滾動槽Μ，且該内殼加具 有頂面21及—内環面22。 _滾動件30係可轉動地設於該滾動槽Μ内 線轉動，該些滚動件-可為滚珠或滚柱，其： 又以成球形的滾珠為較佳。 該轉動輔助件4〇具有一環形管部41及-環形播止部42, 4 ivuyy〇44 其可為—金屬材質者，且該環形管部41係套設於該内殼2〇 内，該環形管部41具有一外環面43，該外環面43係供與内 環面22相抵靠。 該環狀油封5〇係用以封閉該滾動槽15，且在滾動槽15 中可填充有潤滑劑。 轴承蓋2，係以包覆方式設於該軸承與轉動輔助件之端 邛者，其結構為一環形片體，可為一橡膠或塑膠材質者，相對 該軸承為一環形檔緣設計，藉此包覆該轉動輔助件4〇，令軸 承結構不外露，可有效避免騎乘時塵土進入；如圖5、6所示， 即為一自行車之心軸A，該心軸A裝設有本創作之軸承與軸 承蓋2。 在S知轴承與軸承蓋2間運作時，因軸向壓力會撥壓到幸由 承的滾珠’使得影_軸承運轉，本創作因具有該轉動輔助件 40能抵頂該轴向壓力，而不會迫緊到軸承，令軸承之剛性增 強，使軸承在運轉時不易受外力壓迫而增加阻力，進而影響^ 承轉動順暢度。 曰 在本創作中，由於該轉動輔助件4〇具有擋止部42，可避 免内设直躲雜向應力而導致傾斜，更進—步地避免轴承偏 向某-特定部位而有致内殼受力不均之虞，確確實實地増進細 承轉動順暢度，俾減少機械損耗，提升機械結構之間的工作 率。 ^ 由上可知，本創作不僅結構新穎實用，更具有顯著進步之 5 功效，付合專利法相關規定，爰依法提起專利申請 局早曰核予專利，實感德便。 【圖式簡單說明】 圖 鑑請鈞 係本創作自行車心軸之軸承之部分分解圖。 圖2係本創作自行車心軸之轴承之組合圖。 =:=j作自行車心軸之軸承之部分分解剖面圖 圖4係本創作自行車„承之剖面圖。 圖5係本創作自行車㈣之部分分解圖。 ，本創作自行車心料之部分組合圖。 【主要元件符號說明】 A :心轴 10 :外殼 3〇 :滾動件 15 .滾動槽 4〇 :轉動輔助件 2 :軸承蓋 41 :環形管部 20 :内殼 42 :擋止部 :頂面 43 :外環面 22 :内環面 50 :油封 6For the f-axis member (not shown), the paving element is rotatable relative to the woman, and the inner and outer casings are surrounded by a rolling groove, and the inner casing is provided with a top surface 21 and an inner annular surface 22 . The rolling member 30 is rotatably disposed inside the rolling groove, and the rolling members may be balls or rollers, which are preferably spherical balls. The rotation assisting member 4 has an annular tube portion 41 and a ring-shaped stopping portion 42, 4 ivuyy 〇 44 which may be made of a metal material, and the annular tube portion 41 is sleeved in the inner casing 2〇, The annular tube portion 41 has an outer annulus 43 that abuts against the inner annulus 22. The annular oil seal 5 is used to close the rolling groove 15, and the rolling groove 15 may be filled with a lubricant. The bearing cover 2 is disposed on the end of the bearing and the rotating auxiliary component in a covering manner, and the structure is an annular piece body, which can be a rubber or plastic material, and is designed as an annular flange relative to the bearing. The covering of the rotating auxiliary member 4〇 makes the bearing structure not exposed, and can effectively avoid dust entering when riding; as shown in FIGS. 5 and 6, it is a bicycle spindle A, and the spindle A is equipped with the present Created bearing and bearing cover 2. When the S-bearing bearing and the bearing cap 2 are operated, the axial pressure will be pressed to the ball of the bearing, so that the shadow bearing is operated, and the present invention has the rotation assisting member 40 capable of abutting the axial pressure. It does not tighten the bearing, so that the rigidity of the bearing is enhanced, so that the bearing is not easily pressed by the external force during operation to increase the resistance, thereby affecting the smoothness of the bearing. In the present invention, since the rotation assisting member 4 has a stopper portion 42, it is possible to avoid the inclination of the direct hiding force and the inclination, and further prevent the bearing from being biased toward a certain portion to cause the inner casing to be stressed. Unevenness, it is true that the fine rotation of the fine bearing is smooth, the mechanical loss is reduced, and the working rate between the mechanical structures is improved. ^ As can be seen from the above, this creation is not only novel and practical, but also has significant effects. It pays for the relevant provisions of the Patent Law, and the patent application is filed in accordance with the law. [Simple description of the diagram] Please refer to the partial exploded view of the bearing of the bicycle shaft. Figure 2 is a combination of the bearings of the bicycle shaft of the present invention. =:=j is a partial exploded sectional view of the bearing of the bicycle mandrel. Figure 4 is a sectional view of the bicycle of this creation. Figure 5 is a partial exploded view of the bicycle (4). [Description of main component symbols] A: Mandrel 10: Housing 3〇: Rolling member 15. Rolling groove 4〇: Rotating aid 2: Bearing cover 41: Annular pipe portion 20: Inner casing 42: Stopping portion: Top surface 43 : Outer ring surface 22: Inner ring surface 50: oil seal 6