Claims (10)
一種用於自行車花鼓之離合裝置，包含有：一離合件，具有一開口位於其一端的螺孔及一開口位於其另一端且與該螺孔同軸連通的套孔；一第一阻力件，佈置於該離合件之套孔內且具有一筒身及一位於該筒身一端且外徑大於該筒身的凸環，該凸環與該筒身交接處界定出一承靠壁，該筒身之另一端具有至少一外凸緣；一第二阻力件，具有一套環部及一位於該套環部之內環面之內凸緣，該套環部與該內凸緣之間形成一階面，該套環部設於該離合件且可轉動地套設於該第一阻力件之筒身，該套環部之外環面抵接於該離合件之套孔的孔壁，該套環部之一側端面抵接於該第一阻力件之承靠壁；以及一彈性件，套設於該第一阻力件之筒身且彈性頂抵於該第一阻力件之外凸緣與該第二阻力件之階面之間。A clutch device for a bicycle hub comprises: a clutch member having a screw hole having an opening at one end thereof and a sleeve hole having an opening at the other end thereof and coaxially communicating with the screw hole; a first resistance member disposed The sleeve has a tubular body and a convex ring at one end of the tubular body and having an outer diameter larger than the tubular body, and the convex ring and the tubular body define a bearing wall, the tubular body The other end has at least one outer flange; a second resistance member has a ring portion and an inner flange located on the inner ring surface of the collar portion, and the collar portion and the inner flange form a joint a stepped surface, the collar portion is disposed on the clutch member and rotatably sleeved on the barrel of the first resistance member, and the outer ring surface of the sleeve portion abuts against the hole wall of the sleeve hole of the clutch member, One side end surface of the collar portion abuts against the bearing wall of the first resistance member; and an elastic member sleeved on the barrel of the first resistance member and elastically abuts against the flange of the first resistance member Between the step surface of the second resistance member.
如請求項1所述之用於自行車花鼓之離合裝置，其中該第一阻力件之筒身的一端具有多數呈環狀排列之剖溝，相鄰二該剖溝之間形成一爪部，各該爪部之外周面具有一該外凸緣。The clutch device for a bicycle hub according to claim 1, wherein one end of the barrel of the first resistance member has a plurality of annular grooves arranged in a ring shape, and a claw portion is formed between the two adjacent grooves. The outer peripheral mask of the claw has an outer flange.
如請求項1所述之用於自行車花鼓之離合裝置，其中該離合件具有一離合部與一連接該離合部之套接部，該螺孔位於該離合部，該套孔位於該套接部，該套接部至少具有一徑向連通該套孔之嵌卡槽，該第二阻力件之套環部至少設
有一嵌卡部，該嵌卡部卡接於該離合件之套接部的嵌卡槽內。The clutch device for a bicycle hub according to claim 1, wherein the clutch member has a clutch portion and a socket portion connecting the clutch portion, the screw hole is located at the clutch portion, and the sleeve hole is located at the socket portion. The socket portion has at least one embedded slot that radially communicates with the sleeve hole, and the collar portion of the second resistance member is at least
The latching portion is engaged in the card slot of the socket portion of the clutch member.
如請求項1所述之用於自行車花鼓之離合裝置，更包含有二墊圈，該二墊圈分別佈置於該彈性件之兩端。The clutch device for a bicycle hub according to claim 1, further comprising two washers respectively disposed at two ends of the elastic member.
一種自行車花鼓，包含有：一心軸；一花鼓殼，可轉動地套設於該心軸；一鏈輪，可轉動地套設於該心軸之一端且具有一螺桿部，該螺桿部自該花鼓殼之一端伸入該花鼓殼內；以及一如請求項1所述之離合裝置，以可對該花鼓產生離合作用之方式設於該花鼓殼內，其中該離合件之螺孔螺設於該鏈輪之螺桿部，該套孔，該螺孔及該第一阻力件被該心軸所穿設，該第一阻力件之筒身固定於該心軸。a bicycle hub comprising: a mandrel; a flower drum shell rotatably sleeved on the mandrel; a sprocket rotatably sleeved on one end of the mandrel and having a screw portion, the screw portion One end of the flower drum shell extends into the flower drum shell; and the clutch device as claimed in claim 1 is disposed in the hub of the hub in such a manner that the hub is disengaged, wherein the screw hole of the clutch member is screwed to a screw portion of the sprocket, the sleeve hole, the screw hole and the first resistance member are pierced by the spindle, and the barrel of the first resistance member is fixed to the spindle.
如請求項5所述之自行車花鼓，其中該第一阻力件之筒身的一端具有多數呈環狀排列之剖溝，相鄰二該剖溝之間形成一爪部，各該爪部之外周面具有一該外凸緣。The bicycle hub according to claim 5, wherein one end of the barrel of the first resistance member has a plurality of annular grooves arranged in a ring shape, and a claw portion is formed between the two adjacent grooves, and each of the claw portions is formed. The mask has an outer flange.
如請求項5所述之自行車花鼓，其中該離合件具有一離合部與一連接該離合部之套接部，該螺孔位於該離合部，該套孔位於該套接部，該套接部至少具有一徑向連通該套孔之嵌卡槽，該第二阻力件之套環部至少設有一嵌卡部，該嵌卡部卡接於該離合件之套接部的嵌卡槽內。The bicycle hub according to claim 5, wherein the clutch member has a clutch portion and a sleeve portion connecting the clutch portion, the screw hole is located at the clutch portion, and the sleeve hole is located at the sleeve portion, the sleeve portion The sleeve portion of the second resistance member is at least provided with a card insertion portion, and the card portion is engaged in the card slot of the socket portion of the clutch member.
如請求項7所述之自行車花鼓，其中該花鼓殼內設有一驅動環，該驅動環具有一內錐面，該離合件之離合部具有一
外錐面，該外錐面以可相對移動之方式抵接於該驅動環之內錐面。The bicycle hub according to claim 7, wherein the hub is provided with a driving ring, the driving ring has an inner tapered surface, and the clutch portion of the clutch has a
The outer tapered surface abuts against the inner tapered surface of the drive ring in a relatively movable manner.
如請求項5所述之自行車花鼓，其中該離合裝置更具有二墊圈，該二墊圈分別佈置於該彈性件之兩端。The bicycle hub according to claim 5, wherein the clutch device further has two washers, and the two washers are respectively disposed at two ends of the elastic member.
如請求項5所述之自行車花鼓，其中該心軸具有一第一切平面，該第一阻力件之筒身具有一第二切平面，該第二切平面抵接於該心軸之第一切平面。The bicycle hub of claim 5, wherein the mandrel has a first tangential plane, the barrel of the first resistance member has a second tangential plane, and the second tangential plane abuts the first of the mandrel Cut the plane.