TWM488408U - Improved hub structure - Google Patents

Description

Flower hub structure improvement

The present invention provides a flower hub structure improvement that is related to the bicycle transmission structure.

The flower hub is one of the main transmission members in the bicycle, and in addition to the general flower hub which is mainly driven by the transmission, as shown in FIG. 1 , it is a flower hub 10 having a clutch switching function, which mainly comprises a mandrel 11 A constant hole 111 is disposed on the hole 111. The through hole 111 is disposed with a spring 112 and a bead body 113. The two ends of the spring 112 respectively abut against a bead body 113 and are locked to the through hole 111 through the two limiting members 114. The second normal portion of the bead body 113 is passed through a through hole 115 of each of the limiting members 114; the mandrel 11 is received in a hub shell 12; one end of the clutch sleeve 13 has an internal thread segment 131 and The outer push-out section 132 has an inner abutting surface 133. The clutch sleeve 13 is received in the hub shell 12 and is end-to-end with the inner end surface 133. The position of the bead 113 is normally pushed against the inner abutment surface 133 of the clutch sleeve 13; a transmission member 14 has an externally threaded section 141 and a toothed disk portion 142, and the transmission member 14 is formed by the externally threaded section 141. The hub shell 12 is inserted into the hub shell 12 and locked to the internal thread segment 131 of the clutch sleeve 13, and the toothed disc portion 142 is exposed to the hub shell 12, and finally The screw lock is locked to the two ends of the hub shell 12 to form a positioning; when the hub 10 is operated, the spindle 11 is rotated by the toothed disc portion 142 of the transmission member 14 when the clutch sleeve 13 is inside. Threaded section 131 and externally threaded section 141 of the transmission member 14 When in the screwing state, the rotation of the transmission member 14 causes the clutch sleeve 13 to linearly shift, and the hub shell 12 and the spindle 11 are in a non-driven state of relative idling, thereby providing special users (such as stunt performances). In use, there is a transmission neutral for other performances or special effects; and when the mandrel 11 continues to rotate to displace the clutch sleeve 13 until the outer push-out section 132 is engaged with the hub shell 12, the mandrel 11 and The hub shell 12 is in a phase-driven power transmission state; wherein the hub 10 is used to ensure the screwing certainty of the transmission member 14 and the clutch sleeve 13, so that the normal thrust clutch sleeve 13 is disposed on the spindle 11 The bead body 113 is disposed by the cooperation of the beads 113, the spring 112 and the limiting member 114, so that the bead body 113 normally pushes the inner abutting surface 133 of one end of the clutch sleeve 13, thereby making the other end of the clutch sleeve 13 The threaded portion 131 can be more securely screwed to the externally threaded section 141 of the transmission member 14 to improve the stability of the structure; however, the restriction member 114 is a necessary member for avoiding the separation of the beads 113, and must be assembled one by one. The grounding is attached, the assembly process is extremely cumbersome, and there is a lack of assembly efficiency. In view of this, the creators conceived and concentrated more in-depth research, and finally create a flower hub structure improvement.

The present invention provides an improvement of the flower hub structure, which is mainly for improving the limit of the ball which is used for pushing the clutch sleeve in the general flower hub to be coupled with the locking method, and the assembly process is complicated and the production efficiency is not high.

In order to achieve the above object, the present invention provides a flower hub structure improvement, comprising: a mandrel extending along an axial length, and the mandrel is provided with a plurality of receiving grooves on the outer surface; and a pushing unit comprising the corresponding number of receiving grooves a spring, a bead body corresponding to the number of the receiving groove, and an elastic clasp, the spring and the bead are sequentially received in the receiving groove of the mandrel, The spring is normally pushed to the outside of the accommodating groove, and the elastic gusset is a C-shaped piece made of an elastic material, and the elastic gusset is provided with a corresponding number of accommodating grooves, and the elastic buckle is fastened. In the mandrel, the position of the opening of the elastic clasp is corresponding to the position of each bead, so that each of the bead bodies and each of the springs is confined in the receiving groove, and the local normal state of each of the beads is worn out. The hub; the hub is disposed in the hub, the hub is coupled to the wheel; and the clutch sleeve has an internal threaded section and an externally pushed section at one end and the other end An inner abutting surface, the inner abutting surface is a smooth circumferential surface, the clutch sleeve is axially displaceably received in the hub shell, and the end having the inner abutting surface is sleeved on the mandrel corresponding to each The position of the bead body is such that the bead body is normally pushed against the inner abutting surface of the clutch sleeve, and the outer push-pull portion and the hub shell are in a rotationally driven relationship; a transmission member includes an externally threaded portion to engage a gear portion, the transmission member penetrates into the hub shell with the external thread segment and is locked to an internal thread segment of the clutch sleeve, and the tooth plate The portion is exposed to the hub shell; and two screw lock members are locked to the hub shell to limit the hub shell and the transmission member.

The creation pushes one end of the clutch sleeve through the pushing unit normally, so that the other end of the clutch sleeve is screwed with the transmission member, and the spring and the bead of the pushing unit are restricted by the elastic buckle, and need not be assembled during assembly. The locking action greatly simplifies the assembly process and improves assembly efficiency and economic efficiency. Moreover, regardless of the number of springs and beads, the limit can be achieved through an elastic buckle, which can simplify the number of components and reduce the cost. benefit.

[study]

10‧‧‧Flower hub

11‧‧‧ mandrel

111‧‧‧through holes

112‧‧‧ Spring

113‧‧‧ beads

114‧‧‧ Limits

115‧‧‧ wearing a mouth

12‧‧‧ Hub shell

13‧‧‧Clutch sleeve

131‧‧‧Threaded Department

132‧‧‧Extrapolation

133‧‧

14‧‧‧ Transmission parts

141‧‧‧External thread section

142‧‧‧The tooth plate department

[this creation]

20‧‧‧ mandrel

21‧‧‧ accommodating slots

30‧‧‧Pushing unit

31‧‧‧ Spring

32‧‧‧ beads

33‧‧‧Flexible clasps

331‧‧‧ wearing a mouth

40‧‧‧ Hub shell

50‧‧‧Clutch sleeve

51‧‧‧Threaded section

52‧‧‧External push

521‧‧‧ first end

522‧‧‧ second end

Meet within 53‧‧

60‧‧‧ Transmission parts

61‧‧‧ external thread section

62‧‧‧The tooth plate department

70‧‧‧ Screw locks

X‧‧‧ axial

Figure 1 is an exploded perspective view of a general flower hub.

Figure 2 is a three-dimensional combination of a class of flower hubs.

Figure 3 is a combined cross-sectional view of a general flower hub.

Fig. 4 is a schematic exploded view of the three-dimensional structure of the artificial flower hub structure.

Figure 5 is a three-dimensional combination of the improved flower hub structure.

Figure 6 is a combined sectional view of the improved flower hub structure.

In order to enable your review committee to have a better understanding and understanding of the purpose, characteristics and efficacy of this creation, please refer to the following [Simplified Description of the Drawings] for details: The preferred implementation of the improved flower hub structure is shown in Figure 4. As shown in FIG. 6 , a mandrel 20 extends along an axial direction X, and the mandrel 20 is provided with a plurality of accommodating grooves 21 on the outer surface. This embodiment is equiangularly spaced from the outer surface of the mandrel 20 . Three accommodating slots 21 are provided. The pushing unit 30 includes a spring 31 corresponding to the number of accommodating slots 21, a bead body 32 corresponding to the number of accommodating slots 21, and an elastic buckle 33. The pushing unit 30 of this embodiment The spring 31 and the bead body 32 are sequentially received in the accommodating groove 21 of the mandrel 20, and the spring 31 normally faces the accommodating groove. The elastic body 33 is a C-shaped body made of an elastic material, and the elastic fastening piece 33 is provided with a corresponding opening 331 corresponding to the number of the receiving grooves 21, and the elastic fastening piece 33 is provided. The clips 331 are fastened to the mandrel 20, and the position of the opening 331 of the elastic clasp 33 corresponds to the position of each of the beads 32, whereby each of the beads 32 is thereby made. Each of the springs 31 is confined in the accommodating groove 21, and a partial normal state of each of the beads 32 passes through the through opening 331; a hub shell 40, the mandrel 20 is inserted into the hub shell 40, The hub shell 40 is coupled to the wheel; A clutch sleeve 50 has an internal thread segment 51 and an external push-out portion 52 at one end, and an inner abutting surface 53 at the other end. The outer push-out portion 52 of the clutch sleeve 50 has a proximity and abutment a first end 521 and a second end 522 of the surface 53 , the outer diameter of the first end 521 is larger than the outer diameter of the second end 522 , the inner abutting surface 53 is a smooth circumferential surface, and the clutch sleeve 50 can be Displaced in the hub shell 40 in the axial direction X, and the end having the inner abutting surface 53 is inserted over the position of the mandrel 32 corresponding to each of the beads 32, so that the beads 32 are normally pushed to the same. The inner abutting surface 53 of the clutch sleeve 50, and the outer push-pull portion 52 of the clutch sleeve 50 and the hub shell 40 are in a rotationally driven relationship; a transmission member 60 includes an externally threaded portion 61 engaging a toothed disk portion 62, the transmission member 60 penetrates into the hub shell 40 with the external thread segment 61 and is locked to the internal thread segment 51 of the clutch sleeve 50, and the toothed disc portion 62 is exposed to the hub shell 40; The lock member 70 is locked to the both ends of the hub shell 40 to restrain the hub shell 40 and the transmission member 60.

The above is an improved structural configuration and features of the creative flower hub structure, and in operation, mainly drives the toothed disc portion 62 of the transmission member 60, and when the internal thread segment 51 of the clutch sleeve 50 is the transmission member When the externally threaded section 61 of the 60 is in a screwed state, and the clutch sleeve 50 has not been displaced to the end of the externally threaded section 61 of the transmission member 60, the rotation of the transmission member 60 causes the clutch sleeve 50 to follow the external thread. The segment 61 is linearly displaced relative to the transmission member 60. At this time, the power of the transmission member 60 is converted into the linear displacement force of the clutch sleeve 50, and the hub shell 40 is in a non-driven state, and a special user is provided at this time. (such as a bicycle stunt performer) can have a driven neutral in a continuously driven condition, and can perform a special performance or action required during the neutral time; and when the user continues to drive the toothed portion 62, the mandrel When the 20 is continuously rotated, the clutch sleeve 50 continues to be displaced, and when the clutch sleeve 50 is continuously displaced to the external thread segment 61 of the transmission member 60 At the end of the clutch sleeve 50, the clutch sleeve 50 can not continue to be linearly displaced relative to the transmission member 60 to be in a state of being driven, and the clutch sleeve 50 can be converted into a driving state of the hub shell 40 by rotation. The power is transmitted to the wheel to drive the wheel to rotate. The bead 32 of the push unit 30 of the present invention can be normally pushed against the inner abutment surface 53 of one end of the clutch sleeve 50. The female threaded section 51 at the other end of the clutch sleeve 50 can be more securely screwed with the externally threaded section 61 of the transmission member, thereby improving the stability and certainty of the structure and operation: In addition, the pushing unit 30 of the present invention Regardless of the number of springs 31 and beads 32, only one elastic buckle 33 needs to be used to create a limit, and only one snap action is required during assembly, without increasing the number of beads 32, which can be simplified. Assembly process to improve production efficiency and economic efficiency.

20‧‧‧ mandrel

21‧‧‧ accommodating slots

30‧‧‧Pushing unit

31‧‧‧ Spring

32‧‧‧ beads

33‧‧‧Flexible clasps

331‧‧‧ wearing a mouth

50‧‧‧Clutch sleeve

51‧‧‧Threaded section

52‧‧‧External push

521‧‧‧ first end

522‧‧‧ second end

Meet within 53‧‧

60‧‧‧ Transmission parts

61‧‧‧ external thread section

62‧‧‧The tooth plate department

X‧‧‧ axial

Claims (3)

A flower hub structure improvement comprising: a mandrel extending along an axial length, wherein the mandrel is provided with a plurality of accommodating grooves on the outer surface; and a pushing unit comprising a spring corresponding to the number of accommodating grooves and a corresponding number of accommodating grooves The bead body and an elastic clasp, the spring and the bead are sequentially received in the receiving groove of the mandrel, and the spring normally pushes the bead outside the receiving groove, and the elastic cleat is elastic a C-shaped piece made of a material, and the elastic clasp is provided with a corresponding number of receiving slots, the elastic clasp is clamped to the mandrel, and the opening position of the elastic clasp is corresponding to each bead Positioning such that each of the beads, each of the springs is confined in the receiving groove, and a local normal of each of the beads passes through the opening; a hub shell, the mandrel is inserted into the hub shell, The hub shell is connected with the wheel; a clutch sleeve has an inner threaded section and an outer push-out section at one end, and an inner abutting surface at the other end, the inner abutting surface is a smooth circumferential surface, and the clutch sleeve can be Displaced axially into the hub shell and threaded with one end having the inner abutting surface on the mandrel corresponding to each of the beads The position of the body is such that the beads are normally pushed against the inner abutting surface of the clutch sleeve, and the outer push-pull portion and the hub shell are in a rotationally driven relationship; a transmission member including an externally threaded portion is coupled to a tooth a disk portion, the transmission member penetrates into the hub shell with the external thread segment and is locked to the internal thread segment of the clutch sleeve, and the toothed disk portion is exposed to the hub shell; and the two screw lock members are locked Both ends of the hub shell limit the hub shell and the transmission member. The flower hub structure improvement according to the first aspect of the invention, wherein the outer surface of the mandrel is equiangularly spaced apart from three receiving grooves, and the pushing unit comprises three of the springs, three of the beads, and One of the elastic clasps. The flower hub structure improvement according to the first aspect of the invention, wherein the outer push-out section of the clutch sleeve has a first end and a second end adjacent to and away from the inner abutting surface, the first end The outer diameter is greater than the outer diameter of the second end.