TWM466030U - Ratchet base - Google Patents

Description

Ratchet seat

This creation is related to a ratchet seat, especially a ratchet seat for bicycle hubs.

The ratchet seat of the prior art is provided at one end of a bicycle hub, and the other end of the ratchet seat is provided for a plurality of flywheel sleeves. As disclosed in the patent TW M452915, the sleeve ring is provided with a plurality of grooves. The teeth of the flywheel are engaged. The number of grooves provided by the sleeve is usually a fixed value and can only be applied to the flywheel of the same structure. However, in general, the flywheels of different brands have different structures. The number of teeth and the number of teeth are also different. If the user wants to install a flywheel of different structure, the ratchet seat corresponding to the flywheel needs to be purchased, which causes additional cost, and if the user wants to replace the flywheel of different brands. It is inconvenient to first disassemble the ratchet seat to replace the structure of the flywheel that conforms to the label to be installed.

In addition, since the flywheels of different structures have different numbers of teeth, if the ratchet seat is to be recessed with a plurality of grooves and can be applied to the flywheels of different structures at the same time, the width of the partial grooves is often wide, resulting in loading. When the flywheel is provided, part of the tooth portion of the flywheel does not abut against the side wall of the groove, so that some of the tooth portions have no better supporting force, so that the teeth of the flywheel are less stressed than when the user rides the bicycle. When the teeth of the flywheel are unevenly stressed, the teeth of the flywheel are more likely to be deformed or even broken. In view of this, how to design a kind of supply The ratchet seat for the flywheels of different structures is in the direction of the industry.

The purpose of the present invention is to provide a ratchet seat which can be applied to the flywheel arrangement of two different structures, and the teeth of the flywheels can be more evenly stressed and can effectively avoid the deformation of the teeth of the flywheels.

To achieve the above object, the present invention provides a ratchet seat including a body. The body has a first end and a second end, the body is disposed at a first end thereof on a flower hub, and the second end of the body is substantially cylindrical and defines an imaginary circumferential surface. The outer ring surface is surrounded by four deep grooves near the second end, and the distance from the bottom of each deep groove to the circumferential surface is defined as the depth of the deep groove, and the deep grooves are used for accommodating a plurality of first flywheels. Each of the first tooth portions has a bottom surface and two side surfaces adjacent to the bottom surface, each of the deep grooves having a bottom portion and two side walls adjacent to the bottom portion, and the bottom surface of the first tooth portion is Facing the bottom of the deep groove, when the body of the present invention is applied to the first flywheel and the first flywheel is rotated by a bicycle chain, at least one side of each of the first tooth portions of the first flywheel can abut To one of the side walls of the deep groove, so that the first tooth portions of the first flywheel are relatively evenly stressed and are not easily deformed or even damaged due to uneven force.

The body is further provided with nine shallow grooves at the outer annular surface thereof near the second end, and the bottom to the circumferential surface of each shallow groove is defined as the depth of the shallow groove, and the depth of each shallow groove is smaller than any deep groove The shallow groove is adapted to receive a plurality of second tooth portions of a second flywheel, each of the shallow grooves having a bottom portion and at least one side wall adjacent to the bottom portion, each of the second tooth portions having a bottom portion a bottom surface adjacent to the bottom portion, the bottom surface of the second tooth portion is directed toward the bottom of the shallow groove, when the body of the present invention is applied to the second flywheel and the second flywheel is rotated by a bicycle chain, Second flight At least one side of each of the second tooth portions of the wheel can abut against one of the side walls of the shallow groove, so that the second tooth portions of the second flywheel are relatively evenly stressed and are not easily deformed due to uneven force. Or even damage and other issues.

Therefore, the ratchet seat provided by the present invention can be used for the flywheel installation of different brands. If the user wants to replace the flywheel with different structures of different brands, the ratchet seat can be directly replaced and replaced without replacing the ratchet seat. The flywheel of the card is more time-saving and convenient in assembly.

1‧‧‧ Ontology

11‧‧‧ first end

12‧‧‧ second end

131, 132, 133, 134‧‧ deep slots

The bottom of 1311, 1321, 1331, 1341‧‧

1312, 1322, 1332, 1342‧‧ side wall

2‧‧‧First Flywheel

21, 22, 23, 24‧‧‧ first tooth

211, 221, 231, 241‧‧‧ bottom

212, 222, 232, 242‧‧‧ side

25, 32‧‧‧ ratchets

3‧‧‧second flywheel

31‧‧‧Second tooth

311‧‧‧ bottom

312‧‧‧ side

141‧‧‧ first shallow trough

142‧‧‧Second shallow trough

143‧‧‧ third shallow trough

1411, 1421, 1431‧‧‧ bottom

1412, 1422, 1432‧‧‧ side wall

Figure 1 is a perspective view of the creation.

2 and 4 are cross-sectional views of the second end of the creation.

Figure 3 is a cross-sectional view of the present application applicable to the first flywheel.

Figure 5 is a cross-sectional view of the present application applicable to the second flywheel.

The following is a description of possible implementations of the present invention by way of example only, and is not intended to limit the scope of the creation of the present invention.

Referring to FIG. 1 and FIG. 2, the present invention provides a ratchet seat including a body 1. The body 1 has a first end 11 and a second end 12. The first end 11 of the body 1 is coupled to a hub (not shown). The second end 12 of the body 1 is cylindrical. And defining an imaginary circumferential surface, the body 1 is provided with four deep grooves 131, 132, 133, 134 near the outer end surface of the outer ring surface. More specifically, the first end 11 of the body 1 is The connecting direction of the second end 12 defines an axial direction, and the length extending direction of each of the deep grooves 131, 132, 133, 134 is parallel to the axial direction, and each of the deep grooves 131, 132, 133, 134 has a bottom. 1311, 1321, 1331, 1341 and the bottom 1311 The distance between the two adjacent sidewalls 1312, 1322, 1332, 1342, the bottom portions 1311, 1321, 1331, and 1341 of the deep trenches 131, 132, 133, and 134 to the circumferential surface is defined as the deep trench 131. The depth of 132, 133, 134, the closest distance between the two side walls 1312, 1322, 1332, 1342 of each of the deep grooves 131, 132, 133, 134 is defined as the width of the deep grooves 131, 132, 133, 134, The deep grooves 131, 132, 133, 134 are at least partially accommodated by the plurality of first tooth portions 21, 22, 23, 24 of the first flywheel 2.

It should be noted that the first flywheel 2 is annular and can be sleeved on the second end 12 of the body 1. The first flywheel 2 protrudes radially inward from the inner circumference thereof to form four first tooth portions 21 22, 23, 24, the first flywheel 2 protrudes radially outward from the outer periphery thereof with a plurality of ratchet portions 25 for a bicycle chain (not shown), the first tooth portions 21, 22, 23, 24 are arranged in an equidistant manner, and the distance from the one end of each of the first tooth portions 21, 22, 23, 24 farthest from the inner circumference to the inner circumference is defined as the first tooth portion 21, 22, The length of the deep grooves 131, 132, 133, 134 is slightly smaller than the length of the first tooth portions 21, 22, 23, 24 such that the first tooth portions 21, 22, 23, The second portion is disposed in the deep grooves 131, 132, 133, and 134. Of course, in other possible embodiments, the depth of each of the deep grooves may be substantially equal to the length of each of the first tooth portions to make the first teeth. The whole part is placed in the deep groove.

Each of the first tooth portions 21, 22, 23, 24 has a bottom surface 211, 221, 231, 241 and two side surfaces 212, 222, 232, 242 adjacent to the bottom surface 211, 221, 231, 241, each of which The bottom surfaces 211, 221, 231, 241 of the first tooth portions 21, 22, 23, 24 face the bottom portions 1311, 1321, 1331, 1341 of the corresponding deep grooves 131, 132, 133, 134, and each of the first teeth At least one side surface 212, 222, 232, 242 of the portion 21, 22, 23, 24 and one of the side walls 1312, 1332, 133, 1342 of the deep groove 131, 132, 133, 134 are not perpendicular to each other, preferably each The first tooth portions 21, 22, The closest distance of the sides 212, 222, 232, 242 of the 23, 24 bis is defined as the width of the first tooth portions 21, 22, 23, 24, and the widths of the deep grooves 131, 132, 133, 134 are respectively The widths of the first tooth portions 21, 22, 23, 24 correspond to each other. More specifically, the width of each of the deep grooves 131, 132, 133, 134 is slightly larger than the first tooth portions 21, 22, 23 corresponding thereto. And the width of 24, the profitable user installs the first tooth portions 21, 22, 23, 24 of the first flywheel 2 in the deep grooves 131, 132, 133, 134. The two side faces 212, 222, 232, and 242 of each of the first tooth portions 21, 22, 23, and 24 are corresponding to the two side walls 1312, 132, 133, and 134 of the deep groove 131, 132, 133, and 134. Parallelly, each of the first tooth portions 21, 22, 23, 24 can be limited to its corresponding deep groove 131, 132, 133, 134, whereby each of the first tooth portions 21, 22, 23, 24 The two sides 212, 222, 232, 242 are respectively parallel to the two side walls 1312, 1322, 1332, 1342 of the deep groove 131, 132, 133, 134, as shown in FIG. 3, when the body is suitable for the first When a flywheel is rotated by the bicycle chain, at least one side of each of the first tooth portions of the first flywheel can abut against one of the side walls of the deep groove, in other words, when the first flywheel When the flywheel 2 is sleeved on the body 1 and rotated by the chain of the bicycle, at least one side surface 212, 222, 232, 242 of the first tooth portions 21, 22, 23, 24 of the first flywheel 2 can Relying to one of the side walls 1312, 1322, 1332, 1342 of the corresponding deep grooves 131, 132, 133, 134 as a fulcrum, such deep grooves 131, 132, 1 The side walls 1312, 1322, 1332, 1342 of the 33, 134 can provide a supporting force of the first tooth portions 21, 22, 23, 24 of the first flywheel 2, and the first tooth portions 21, 22, 23, 24 is relatively evenly stressed, and the first tooth portions 21, 22, 23, 24 are prevented from being deformed or even broken due to uneven force.

It is to be noted that the four first tooth portions 21, 22, 23, 24 are sequentially placed in the deep grooves 131, 132, 133, 134, and in order to cooperate with the first tooth portions 21, 22, 23 24 wide The width of one of the deep grooves 131, 132, 133, 134 is smaller than the width of any of the other deep grooves 131, 132, 134 to form the first tooth portions 21, 22, 23, One of the first tooth portions 23 cooperates with each other, so that the user can find the corresponding deep groove 133 by the width of the first tooth portion 23, thereby enabling quick alignment of the first tooth portions 21, 22, and 23 And 24 are corresponding to the deep grooves 131, 132, 133, 134 to facilitate assembly of the first flywheel 2.

In addition, referring to FIG. 1 , FIG. 4 and FIG. 5 , the body 1 is further provided with nine shallow grooves at the outer ring surface thereof near the second end 12 , and the distance from the bottom of each shallow groove to the circumferential surface is defined as The depth of the shallow groove, the length direction of each of the shallow grooves is parallel to the axial direction of the body, and the depth of each of the shallow grooves is smaller than the depth of any of the deep grooves 131, 132, 133, 134, and the shallow grooves may be The second flywheel 3 is at least partially received by a second flywheel 3, wherein the second flywheel 3 is annularly disposed on the second end 12 of the body, and the second flywheel 3 is from the inner periphery thereof Radially inwardly protruding to form nine second tooth portions 31, the second flywheel 3 projecting radially outward from the outer periphery thereof with a plurality of ratchet portions 32 for a bicycle sprocket jam, the second teeth The portions 31 are arranged in an equidistant manner, and the distance from the one end of each of the second tooth portions 31 farthest from the inner circumference to the inner circumference is defined as the length of the second tooth portion 31, and the second portion of the second flywheel 3 The length of the tooth portion 31 is smaller than the length of any of the first tooth portions 21, 22, 23, 24 of the first flywheel 2.

Each of the shallow grooves has a bottom portion and at least one side wall adjacent to the bottom portion. More specifically, the shallow grooves are provided for the second flywheel 3 having the nine second tooth portions 31, and the shallow grooves are included The first shallow groove 141, the third second shallow groove 142 and the fourth third shallow groove 143, each of the first shallow grooves 141 has a bottom portion 1411 and a side wall 1412 adjacent to the bottom portion 1411, the first shallow groove The 141 series are respectively located on two sides of one of the deep grooves 131 and are in communication with each other to accommodate two adjacent second tooth portions 31 of the second flywheel 3, and the first shallow grooves 141 are connected thereto. A step is formed between the deep grooves 131 Ladder. Each of the second shallow grooves 142 has a bottom portion 1421 and a side wall 1422 adjacent to the bottom portion 1421. The positions of the three second shallow grooves 142 are partially overlapped with the positions of the remaining three deep grooves 132, 133, and 134, respectively. A stepped surface is formed between the deep grooves 132, 133, and 134, and each of the third shallow grooves 142 has a bottom portion 1431 and a second portion adjacent to the bottom portion 1431. Side wall 1432.

It should be noted that each of the second tooth portions 31 has a bottom surface 311 and two side surfaces 312 adjacent to the bottom surface 311. The bottom surface 311 of each of the second tooth portions 31 faces the bottom of the corresponding shallow groove. That is, the bottom surface 311 of each of the second tooth portions 31 faces the corresponding first shallow groove 141, the second shallow groove 142 or the bottom portion 1411, 1421, 1431 of the third shallow groove 143, and the second tooth portion 31 is at least One side 312 and the side wall of the shallow groove are not perpendicular to each other, and more specifically, one side 312 of the second tooth portion 31 corresponding to the first shallow groove 141 or the second shallow groove 142 is associated with the first The side walls 1412 and 1422 of the shallow groove 141 or the second shallow groove 142 are substantially flat, and the two side faces 312 of the second tooth portion 31 corresponding to the third shallow groove 143 are respectively opposite to the two side walls 1432 of the third shallow groove 143. In a parallel manner, as shown in FIG. 5, when the body is applied to the second flywheel and the second flywheel is rotated by the chain of the bicycle, at least one side of each of the second tooth portions of the second flywheel can abut One of the side walls of the shallow groove, in other words, when the second flywheel 3 is sleeved on the body 1 and rotated by the chain of the bicycle At least one side surface 312 of the second tooth portions 31 of the second flywheel 3 can abut against one of the first shallow groove 141, the second shallow groove 142 or the third shallow groove 143 corresponding to the sidewalls 1412, 1422 As a fulcrum, the side walls 1412, 1422, and 1432 of the first shallow groove 141, the second shallow groove 142, and the third shallow groove 143 can provide the second tooth portions 31 of the second flywheel 2 The supporting force is such that the second tooth portions 31 are relatively evenly stressed, and the second tooth portions 31 are prevented from being deformed or even broken due to uneven force.

The positions of the deep grooves 131, 132, 133, and 134 and the first shallow grooves 141, the second shallow grooves 142, and the third shallow grooves 143 are the third shallow grooves 143 in this embodiment. Located between any two adjacent deep grooves 131, 132, 133, 134, and further, between any two adjacent deep grooves 131, 132, 133, 134 having at least one shallow groove, more specifically, the two phases A first shallow groove 141 and a third shallow groove 143 are defined between the adjacent deep grooves 131 and 132. The second adjacent shallow grooves 132 and 133 have a third shallow groove 143 and a second shallow groove 142. Between the two adjacent deep grooves 133, 134, there is a third shallow groove 143 and a second shallow groove 142. The two adjacent deep grooves 134, 131 have a third shallow groove 143 and a first a shallow groove 141, whereby, in actual use, the deep grooves 131, 132, 133, 134, the first shallow grooves 141, the second shallow grooves 142, and the third shallow grooves 143 are all The first flywheel 2 or the second flywheel 3 is selectively sleeved on the body 1 by the user. For example, the user originally sets the first flywheel 2 to the body 1. User wants to use this Replacing flywheel 2 for the second flywheel 3, without the removable body 1 but may wish to use direct replacement of the second flywheel 3, and relatively more conveniently when assembled on the province.

In summary, the ratchet seat provided by the present invention can be applied to flywheels of different brands by using deep grooves and shallow grooves of different depths, if the user wants to replace different structures of different brands. When the flywheel is used, it is not necessary to disassemble and replace the ratchet seat to directly replace the flywheels of different brands, which is more time-saving and convenient in assembly. In addition, by recessing the deep grooves and shallow grooves, the body can be made lighter, which is extremely effective, conforms to the relevant provisions of the Patent Law, and is filed in accordance with the law. Patented, real sense of virtue.

1‧‧‧ Ontology

11‧‧‧ first end

12‧‧‧ second end

131, 132, 133, 134‧‧ deep slots

2‧‧‧First Flywheel

21, 22, 23, 24‧‧‧ first tooth

211, 221, 231, 241‧‧‧ bottom

212, 222, 232, 242‧‧‧ side

25, 32‧‧‧ ratchets

3‧‧‧second flywheel

31‧‧‧Second tooth

311‧‧‧ bottom

312‧‧‧ side

Claims (6)

A ratchet seat includes: a body having a first end and a second end, the body having a first end coupled to a hub, the second end of the body being cylindrical and defining a hypothetical a circumferential surface, the body is provided with four deep grooves at the outer ring surface near the second end, and the distance from the bottom of each deep groove to the circumferential surface is defined as the depth of the deep groove, and the deep grooves are available for one The plurality of first tooth portions of the first flywheel are at least partially received, and each of the first tooth portions has a bottom surface and two side surfaces adjacent to the bottom surface, each of the deep grooves having a bottom portion and two side walls adjacent to the bottom portion The bottom surface of the first tooth portion faces the bottom of the deep groove. When the body is applied to the first flywheel and the first flywheel is rotated by a bicycle chain, the first tooth of the first flywheel At least one side of the portion can abut against one of the side walls of the deep groove; the body is further provided with nine shallow grooves at the outer ring surface adjacent to the second end, and the distance from the bottom of each shallow groove to the circumferential surface is defined For the depth of the shallow groove, the depth of each shallow groove is less than the depth of any deep groove, The shallow groove is at least partially received by the plurality of second tooth portions of the second flywheel, each of the shallow grooves has a bottom portion and at least one side wall adjacent to the bottom portion, each of the second tooth portions having a bottom portion and the bottom portion Adjacent two sides, the bottom surface of the second tooth portion faces the bottom of the shallow groove, and when the body is applied to the second flywheel and the second flywheel is rotated by a bicycle chain, each of the second flywheels At least one side of the second tooth portion can abut against one of the side walls of the shallow groove. The ratchet seat according to claim 1, wherein the closest distance between the two side walls of each of the deep grooves is defined as the width of the deep groove, and the closest distance between the two sides of each of the first tooth portions is defined as the first tooth portion. The width of the deep grooves corresponds to the widths of the first tooth portions, and the two side surfaces of each of the first tooth portions are respectively parallel to the two side walls of the corresponding deep groove, so that each First A tooth can be confined to the deep groove. The ratchet seat of claim 2, wherein one of the deep grooves has a width smaller than a width of any of the other deep grooves. The ratchet seat of claim 1, wherein there are at least one shallow groove between any two adjacent deep grooves. The ratchet seat of claim 1, wherein the shallow grooves are provided by a second flywheel having nine second tooth portions, wherein the shallow grooves comprise two first shallow grooves, three second shallow grooves and four first portions. The first shallow groove has a bottom portion and a side wall adjacent to the bottom portion, and the two first shallow groove portions are respectively located on two sides of one of the deep grooves to communicate with each other to accommodate the second Two adjacent second tooth portions of the flywheel, wherein the positions of the three second shallow grooves are partially overlapped with the positions of the remaining three deep grooves and communicate with each other, and each of the third shallow grooves has a bottom and a bottom portion Adjacent to the two side walls, each of the third shallow grooves is located between any two adjacent deep grooves. The ratchet seat according to claim 5, wherein a step surface is formed between each of the first shallow grooves and the deep groove communicating with the first shallow groove, and a step surface is formed between the deep grooves and the deep groove.