TWI259814B - Hub driving unit for positioning ratchet pawls - Google Patents

Abstract

A hub driving unit for positioning ratchet pawls, including: a body; plural ratchet pawls, plural elastic components and a stopping member. The body includes plural receiving slots indenting from an inner end along an axial direction and plural positioning holes. The ratchet pawls and elastic components are mounted in respective receiving slots. The stopping member includes a ring plate and plural positioning pots facing the inner end of the body. The positioning posts are each tightly fitted and inserted in the positioning holes such that the ring plate would tightly urge against the inner end to prevent the ratchet pawls and elastic components from disengaging from the receiving slots. The use of the stopping member ensures that the ratchet pawls and elastic components can be positioned in the receiving slots so as to enhance easiness in assembly, maintain driving torques and prolong lifespan of the ratchet pawls.

Description

1259814 IX. Description of the Invention: [Technical Field] The present invention relates to a drive unit for a flower hub, and more particularly to a flower hub drive unit that can clamp a pawl. [Prior Art] 1. One is rotatable and unidirectionally linked. Referring to FIG. 1, a flower hub mainly includes a hub unit 2 and a hub unit 2 that are pivotally supported on the mandrel 1. Drive unit 3.

The hub unit 2 is rotatably supported on the mandrel and has a ratchet ring 202 disposed on an inner peripheral surface 201. The drive unit 3 is also rotatably supported on the mandrel 1. Referring to Figures 2 and 3, the drive unit 3 further has a body 3〇1, a plurality of jaws 302 and a plurality of elastic members 3〇3. The main body 301 has an inner end surface 305, an outer annular surface 3〇6, and a plurality of receiving grooves 3 凹 recessed from the inner end surface 305 and penetrate the outer annular surface 306: 'the receiving groove 307 It can be defined that the open end tears corresponding to the inner end faces 3〇5 are slidably mounted in the accommodating grooves 307, respectively. The elastic members 303 are respectively inserted into the accommodating grooves 3〇7, and the elastic force thereof is constantly pushed against the claws 3〇2 to be meshed with the ratchet ring (as shown in Fig. 1). The outer ring surface 3〇6 of the body 301 is further integrally formed with a sprocket piece 3 (10) for power input. 1259814 _ bite to the purpose of interlocking the body unit 2 early, but there are still the following defects: the pre-one, the drive unit 3 has not been with the mandrel 1, the hub unit 2 - the claws 302 may be from the receiving slot 3〇7:, there is a lack of assembly inconvenience. 8 falls out. 2. Even if the hub is successfully assembled, the claws 302 are prone to axial dissipation. The open end 308 of the bicycle will cause the driving torque to decrease. ...exposed to the support of the right hand and other hand claws 3〇2 for a long time in the free full support, there are also the claws 3〇2 service life is shortened to the end four, in addition, the elastic 亓 Du 1 Free problem. MU is similarly detached. SUMMARY OF THE INVENTION Accordingly, the object of the present invention is to improve the convenience, the % pull, and the assembly of the torque, and to increase the torque and increase the pawl to drive the hub drive unit. ^ · The square and the 掣 of the 掣 掣 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , :: include: a body surface, an outer ring surface, a plurality of self-body accommodating grooves having an inner end, and μ 轴向 axially recessed and penetrated the outer ring surface to define a ":" face recessed in the axial direction Fixing hole, the receiving groove. "The open end of the complex wheel surface and the - elastic element corresponding to the outer ring surface are erected separately in the accommodating groove I. Second, thank you for the elasticity of the __" Having a ring Η n ^ with respect to the inner end surface of the body 6 l2S98l4, a fixed column protruding from the ring piece in the axial direction, and the solid/porting holes are inserted into the fixing holes, And the claws m / garments, the inner end and the elastic parts are detached from the open ends. In this case, the stop member of the present invention is located between the 兮 卞 卞 隹戸 将 将 将 将 将 及 及 及 及 及 及 及 及 及 及 及 及 及 。 。 。 。 。 。 。实施 驱 【 实施 实施 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 Τ A A A A A A A A A A A A A A A A A A "" "The detailed description of the column will be described before the present invention is described in detail, and the upper part of the file is in the following valley. The similar element is the condition" The same number is used to indicate. 4 4 ' ' ' ' ' ' ' 本 本 本 本 * * * * * * * * * * * * * * * * * * * * * * * * * * * 手 手 手 私 私 私 私 私 私 私 私 私 私The bearing is an example of a first bearing-bearing 12, a "needle 2: a self-lubricating bearing as an example of a first shaft' 1 乂 needle bearing as an example of a third bearing i3-20, the drive unit 30 and the two side cover sheets a 4〇. ^ The early 兀 extends along an axial direction, the body unit 2 〇 Ris, the middle, the sinus mandrel 10 is earlier than the first bearing u on the mandrel 10 And having a ratchet ring 22 disposed on the _ _ _ θ + 円 circumferential surface 21, the driving soap element 30 疋 by the second, second and second bearings 12, U amp, the shaft 10, and The hub body can be unidirectionally linked, and the two side cover sheets are screwed to the ends of the mandrel 10 to axially position the members. See Figure 5, 6 'δ海驱动驱动 unit 3 Included is a body 3 1 , a mushroom | a claw 32 , a plurality of elastic members 33 and a stopper 34. The number of hands 1259814 The body 31 has an inner end surface 311, an outer annular surface 312, and a plurality of edges from the inner end surface 311 axis The accommodating grooves 313 are recessed and penetrated through the outer ring surface 312. The accommodating grooves 313 are respectively connected to the groove bottom surface 314 of the outer ring surface 312, and are connected to the bottom surface 314 of the groove and are in a circular shape. The first limit arc portion 315 and a second limit arc portion 316 which is connected to the other side of the groove bottom surface 314 with respect to the first limit arc portion 315 and which is formed in a circular shape. The arranging groove 313 defines a pair of open ends 317 which should be the inner end surface 311 and a pair of openings 3 1 8 which should be the outer ring surface 312. The claws 32 are swingably mounted on the equal volumes respectively. Each of the slots 313 has a pivotal end portion 32 呈 in a circular block shape and is pivotally received in the first limit arc 邛 3 1 5 , and is opposite to the pivot end portion 321 . A pawl portion 322 having a large extension 4 opening 3 1 8 and a middle portion 323 interposed between the pivot end portion 32 i and the pawl portion 322 are provided. The elastic member 33 is bent by an elastic steel sheet. And each has a flexing portion 331 that can be mounted in the second limiting arc portion 316, a positioning portion 332 that is attached to the side of the flexing portion 331 and is attached to the bottom surface 314 of the trough. In 忒杌曲邛3 The other side of the protrusion 3 3 3 that extends to the opening 3丨8, the ballistic abutting portion 333 is abutted against the middle portion 323 of the corresponding pawl 32, and the physical force is pushed against the pawl 32. The tendon is sprayed onto the ratchet ring 22 (as shown in Fig. 4). The body 31 can define a plurality of fixing holes 3 19 which are axially recessed from the inner end surface 3 11 by the flexures 331. The stopper 34 is made of a plastic material and has a ring piece 341 opposite to the inner end surface 3U of the body 1 and a plurality of solid 8 1259814 fixed posts 342 ′ which protrude from the ring piece 34丨 in the axial direction. The fixed branch θ & mad 342 疋 is also counted as being insertable into the fixing holes 3 1 9 and in a tight fit, so that the disturbance y 2 jumps/the piece 341 can be closely attached to the inner end face 3 11 to prevent The claws 32 and the elastic element strains are issued on the day of the mountain. The temple is accommodated in the slot 313 (as shown in Figure 4). Preferably, the body 3 has a sprocket piece 35 integrally formed from the outer ring surface 3 12 for power input.

In summary, the flower hub driving unit of the present invention for positioning the pawl has the following effects:

The ¥ 卞 卞 L L L L L 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该2. When the user rides the bicycle, the claws 32 are not free, and the entire driving unit 30 can maintain a good driving torque. 2. Since the claws 32 are correctly positioned, they are completely affected by the arc portion 315. Alternatively, the service life of the pawls 32 can be increased / the I threshold elastic member 33 does not cause the problem of shedding or dissociation. Referring to FIG. 7, the first embodiment of the present invention is substantially the same as the first sinus, and the driving unit 3〇, the 扛丄 扛丄 施 也 也 也 也 也 也 也 也 也 也 也 也 也 也 也 也 也 也Element 33, and - stopper 34, = hand 32, plural system ^ - the difference is that the body Ή, 曰 by a claw 5, and a sprocket seat 3 plate 31 疋 35, With the same capacity: axial screw lock... the jaw seat, available - sprocket two V: with an external thread. Go, (not) screw lock combination. Then, the second embodiment can achieve the effects of the first embodiment described above. &Example also 1259814 爹 8 8 8 , , , 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木 木The limb 31, the plurality of claws 32", the plurality of elastic members 33" and the one of the cymbals + yu" "stops 34. The body 31, also has an inner end face 3U,, - outer ring surface 312,,, plural The inner end surface 3 ι ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” The body 3丨 is also screw-locked in the axial direction by the pawl seat 35" and the sprocket seat 36". The stopper μ, also a ring piece 341 and a plurality of the ring 342, the difference is in (4) the solid IV: the axially protruding fixed column 隹趴β seeks the boring hole 319, Between the 313" and the 313", the elastic members, the 曰6,, 1 are made of compression springs, and the outer teeth 361 of the granules 36 are arbitrarily sleeved. The third embodiment can also be achieved. The above-mentioned first embodiment is only for the preferred embodiment of the present invention, and is not limited thereto to the scope of the present invention, that is, the simplicity of the invention and the simplicity of the description of the invention. Equivalent variant: It is within the scope of the patent of the present invention. / Whitening is still [Simplified illustration] A wide-view view of the figure - Description - a kind of well-known flower valley - mandrel, - hub moon bean early and a drive unit "Specially" "Fig. 2" - a perspective view showing the conventional drive unit - the present - ... number of jaws and complex elastic elements; ordinary body, Figure 3, front view of Figure 2; Figure 4 Figure, says θ Τ疋 position of the claw of the flower hub drive 10 1259814 :=!:, the preferred embodiment is applied to - flower valley 'this flower The present invention comprises a centering unit, the driving unit and the two side cover units; FIG. 5 is a perspective view of a preferred embodiment of the "dead element", illustrating the driving unit, the number of jaws, the plurality of elastic elements and the first block Figure 6 is a part of a front view and a cross-sectional view of the preferred embodiment, said to define: a number of fixed columns are tightly fitted to insert the elastic a plurality of fixed holes that are ejected by the component;

Figure 7 is a different Λ-/Τ _ is made by - 掣 "- the preferred embodiment - a half-section view 1 shows the body calendar and a threaded sprocket seat screw lock combination; Figure § _ _ has a long bolt The sprocket seat of the tooth portion is screwed together; and FIG. 9 is a partial front view and a cross-sectional view of the third preferred embodiment of the body, and the plurality of fixed positions of the body are fixed, and the U-shaped hole is Hold slot spacing settings.

11 1259814 [Description of main component symbols] 1 0... ...... mandrel 33 ...*· ... ♦ elastic element 100 ^ ... singular 331 ... ... flexure 1 1 - ... first bearing 332 ... ... positioning part 12- ...... First bearing 333... •...Bounce part 1 3... ...... Third bearing 34*·... •... Stopper 2 0... ...... Hub body unit 341 *** •... Ring piece 21... ... inner circumferential surface 342 ... ... fixed column 22 ... ... ratchet gear 35 ... sprocket wheel 30 ... ... < drive unit 4 〇 ... ... side unit 31 ... ... body 30, .... Unit 31... inner end surface 31, ..... body 312 * outer ring surface 313, ... accommodating groove 313 » accommodating groove 32, ... ...... 掣 claw 314 ♦ ... groove bottom surface 33 , "...elastic element 315 * ...the first limit arc portion 34, "...stop member 316 ^ ... - second limit arc portion 35, .... ... claw seat, 317 · ... Open end 36, ·*... sprocket seat 318. ... opening 361, ... external thread 319 ^ ... fixed 孑 L 30,, ... * ... drive unit 32 ... ... 掣 claw 31,, ... ... body 321 - only £ turn and mouth P 3 11" ... ...inner end face 322 * ...... pawl portion 312,,... * · · 环 环 面 323 - ... t segment 313" ... accommodating groove 12 1259814 319" ... fixing hole 342, ... ... fixed column 3 2,,...' ...the pawl 35,,....the claw seat 3 3,,....the elastic element 36,,...·...the sprocket seat 34,,...the support member 361,,... Bolt tooth 3 4 1,,... ring

13

Claims (1)

The scope of application for patents: 1. The #, drive unit that can position the claws, includes: a carrier body having a mountain end face recessed along the axial direction, an end face, an outer ring face, and a plurality of inner inner ends Ma ° and Abbott the outer ring surface of the receiving groove, and a plurality of axial recesses from the / mouth should be the open end of the inner end face and: = groove can define - to the complex number of claws, θ σ The opening of the abutment; the middle; the king can be oscillated and mounted in the accommodating slots, the plurality of bullets #^^ „gn, respectively, which are installed in the accommodating slots, and the spring force &掣 趋 τ 丰 丰 丰 丰 面向 面向 面向 丰 丰 丰 丰 丰 丰 丰 丰 丰 丰 丰 τ τ τ τ τ τ τ τ τ τ τ τ τ τ τ τ τ τ τ τ τ τ τ τ τ τ τ τ The protruding fixing column, the fixed column such as Yanhai can be inserted into the fixing holes tightly, respectively, and the wearing piece is closely attached to the inner end surface to prevent the side seeking claw and the elastic member from being separated from the open ends. 2. According to the scope of the patent application 帛(10)一4 1 ^ J", the flower hub of the claw is driven early, wherein the accommodating slots Each is a bottom surface of the groove of the outer surface of the ground surface, a first limit arc portion that is connected to the bottom surface of the groove, and a first limit arc portion along the circumferential direction relative to the first limit arc The second limit arc portion is defined by being connected to the other side of the bottom surface of the groove and having a circular shape. 3. According to the application of the patent (4) 2 items, the claw drive unit of the claw can be determined, wherein the 'the claws each have a circular block shape and can be rotatably accommodated in the first-limit anvil. a pivoting end portion, a pawl portion disposed opposite to the frame and projecting from the opening, and a middle portion between the end portion and the pawl portion. 1259814 'The hub of the positionable claws described in item 3 of the profit range: 7L #中' The #elastic element is made of elastic steel sheets, and has □ can be installed in the second limit of Yanhai The winding portion _, the flexure portion-side and the positioning portion attached to the bottom surface of the groove, and the connection: on the other side of the flexure portion of the έ海 and extending to 嗲η Μ „, 'σ 5 is abutting in the corresponding 开二开_, the _: according to the scope of claim 4, the positionable early -, wherein the fixed holes of the body:: (d) around the definition.曲部所6·(4) Shen If patent _ 丨 所述 所述 ( 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 自 自 自 自 自 四 四 四 四 四 四 四 自The flower valley drive lock is combined with the claw seat # # _ " The chain spoke seat is threaded along the axial direction. +Kinzhuang 5 has 5 Hai Temple accommodating trough 'The sprocket seat is provided - the outer 8 · according to the patent unit scope i item of the heart unit, wherein the body is combined by a 掣 "chemical yi drive lock, The "seat is provided with the accommodation; the wheel base is along the axial bolt teeth. The θ, 5 sprocket wheel seat is provided with an outer element, wherein the body is more sturdy and has a slewing wheel according to the patent application unit, wherein ό is set again. The hub of the fixed positionable jaws of the body described in the first item of the scope is spaced apart from the accommodating slots.