TW201720594A - Flywheel retaining clip - Google Patents

Abstract

A flywheel retaining clip includes a first jaw and a second jaw, the first and second jaws are provided with a chain for clamping a chain ring, respectively, a first jaw distance is longer than a second jaw distance, such that when the flywheel retaining clip clamps the chain ring, the first jaw distance will produce a reverse force-applying direction to the chain ring, so as to improve the fastening force of the chain ring.

Description

Flywheel clamp

The present invention provides a flywheel retaining clip that is associated with a hand tool for fastening.

According to the bicycle, it is a kind of transportation vehicle with great environmental benefits and fitness effect. Based on this condition, the bicycle industry has a long history of production;

With the popularity of bicycles, more and more bicycle riders like to modify, clean and even upgrade the bicycles themselves, thus creating the demand for bicycle accessories DIY market, in the case of bicycle flywheels, due to bicycle flywheels. It is an important part of driving bicycles. When the bicycle is riding for a period of time, the bicycle flywheel will be worn or stained, and the above conditions will affect the smoothness of the driving, so it is necessary to disassemble and disassemble the bicycle flywheel for replacement or cleaning. The flywheel must be replaced by a flywheel positioning tool to stop the flywheel from rotating. After the stop, the flywheel cover is loosened by a flywheel cover sleeve to complete the replacement work;

As shown in FIG. 1 , a conventional flywheel positioning tool 10 includes a long handle 11 , a fixed chain 12 and a free chain 13 . The fixed chain 12 and the free chain 13 are respectively composed of a plurality of links. A link is formed, the links A are connected in sequence, and the two ends of the fixed chain 12 are respectively fixed on the long handle 11, and the link A at one end of the free chain 13 is fixed to the long handle 11 and the other end is connected. A is free to swing freely;

Each of the links A is composed of two opposite links A1, and there is a space between the two links A1 for the set of convex teeth. In use, the user must first connect the links A of the fixed chain 12. Corresponding to the convex tooth S1 on the toothed disc S of the flywheel, respectively, the free chain 13 is wound around the other convex teeth S1 on the toothed disc S, and can be held by the user with the long handle 11 Make the toothed disc unable to rotate, so that subsequent disassembly, repair or cleaning work can be carried out;

However, such a flywheel positioning tool 10 has a certain positioning stability because it is positioned by the link A in conjunction with the toothed disc S. However, in the process of using the flywheel positioning tool 10, the fixed chain 12 and the free chain must be simultaneously fixed. 13 is wound around the flywheel, and the free chain 13 has a state in which one end is completely free to swing, so in the process of winding the free chain 13 around the toothed disc S, the free aspect of the free chain 13 will In order to overcome the difficulty of the control, in order to overcome the difficulty of the control, the user must hold the chain A1 of each chain 12, 13 and arrange the protruding teeth S1 of the chain plate S one by one in sequence. Time-consuming, and the user's hand will be contaminated with oil during this process, affecting the comfort of use;

In view of this, the inventors have devoted themselves to research and intensively conceived, and after many trials and developments, finally developed a flywheel fixing clip.

The embodiment of the invention provides a flywheel fixing clip, the main purpose of which is to improve the loss of the conventional flywheel positioning tool which is difficult to control, has poor convenience and is uncomfortable to use.

In order to achieve the foregoing objective, the present invention provides a flywheel fixing clip, which comprises a first weir portion and a second weir portion disposed on a holding unit, and the first weir portion and the second weir portion are coupled through a joint structure. And the first side and the second side of the second side are respectively provided with a chain, wherein:

The first jaw is divided into a first clamping section and a first extension by the bonding structure, and the second jaw is also divided into a second clamping section and a second extension by the bonding structure. The first crotch portion and the second crotch portion are coupled to the coupling structure and are relatively close to or away from each other, and a side of the first crotch portion opposite to the second crotch portion is curved, and the first crotch portion is away from the The farthest end of the shape center point of the joint structure has a first lay length between the center point of the joint structure and the center point of the joint structure, and the farthest end of the shape center point of the joint structure and the joint structure Having a second lay length between the center points of the shape, the first lay length being greater than the second lay length;

Each of the chains respectively comprises a plurality of links, each of the links includes two oppositely disposed links, and a space is formed between the links, and each of the links of the chain is pivoted between the links. Connected pivotally.

The present invention mainly sets the first lay length to be larger than the second lay length. Therefore, when the flywheel fixing tool of the present invention is clamped to the toothed disc, the first lay length is relative to the toothed disc. The toothed disc generates a biasing direction of the barb, and based on this, the fastening force of the fastening toothed disc can be improved, and the stability of the operation is improved.

In order to enable the reviewing committee to have a better understanding and understanding of the purpose, features and effects of the embodiments of the present invention, the following is a brief description of the following:

As shown in FIG. 3 to FIG. 10, the flywheel fixing clip of the embodiment of the present invention comprises a first clamping portion 30 and a second clamping portion 40, and the first clamping portion 30 and the second jaw portion. The first dam portion 30 is divided into a first clamping portion 31 and a first extending portion 32 by the bonding structure 50, and the second dam portion 40 is also formed by the bonding structure 50. The boundary is divided into a second clamping section 41 and a second extension section 42, and a pair of chains 60 are respectively disposed on opposite sides of the first clamping section 31 and the second clamping section 41, wherein:

The first jaw portion 30 and the second jaw portion 40 are coupled to the coupling structure 50 and can be relatively close to or away from each other, and the side of the first jaw portion 30 opposite to the second jaw portion 40 is curved. The first weir portion 30 has a first lay length D1 between the farthest end of the shape center point C of the joint structure 50 and the shape center point C of the joint structure 50, and the second weir portion 40 is away from the joint structure. Between the farthest end of the shape center point C of 50 and the shape center point C of the joint structure 50, there is a second lay length D2, the first lay length D1 being greater than the second lay length D2;

Each of the chains 60 includes a plurality of links 61. Each of the links 61 includes two oppositely disposed links 611. A space P is formed between the links 611, and each chain of the chain 60 is formed. The segments 61 are pivotally coupled by a pivot pin 62.

The shape of the holding unit 20 is not limited. The holding unit 20 of FIG. 3 to FIG. 5 is a single handle. In this example, the second portion 40 is the second extending portion 42. Fixedly coupled to the holding unit 20, and the second structure 40 is fixedly disposed on the second body 40, and the first body 30 is pivotally coupled to the first extension 31. In addition, in this example, a tension spring 70 is further disposed between the first jaw portion 30 and the second jaw portion 40, and one end of the tension spring 70 is fixed to the first jaw portion 30. The first clamping portion 31 is fixed to the second clamping portion 41 of the second jaw portion 40. The tension spring 70 normally pulls the first jaw portion 30 and the second jaw portion 40 to The first weir portion 30 and the second weir portion 40 are normally relatively close to each other, but in this example, the first weir portion 30 and the second weir portion 40 are spaced apart by a distance without being staggered at all;

The first crotch portion 30 of the embodiment is substantially a curved piece body, and the overall length of the first crotch portion 30 is smaller than the sum of the lengths of the second crotch portion 40 and the grip unit 20.

In addition, as shown in FIG. 6 to FIG. 8 , another embodiment of the first crotch portion 30 and the second crotch portion 40 is displayed. The grip unit 20 shown in FIG. 6 is also a single handle, and the handle portion 20 is The second jaw portion 40 is also fixedly coupled to the grip unit 20 by the second extension portion 42 . The first jaw portion 30 is pivotally pivotally connected to the coupling structure via a pivotal coupling structure 50 . 50, and the first extension 31 of the first crotch portion 30 extends past the second crotch portion 40 to be in a staggered state, the first extension segment 31 crossing the end of the second crotch portion 40 and the second crotch portion 40 A tension spring 70 is further disposed between the second clamping jaws 41, and in this example, the tension spring 70 and the chain 60 are respectively located on opposite sides of the second clamping section 41.

Furthermore, referring to FIG. 9 and FIG. 10, the grip unit 20 is shown as two grips. In this example, the two grips of the grip unit 20 are respectively fixedly coupled to the grip. A dam portion 30 and the second dam portion 40 are pivotally coupled to each other through the coupling structure 50 between the first dam portion 30 and the second dam portion 40.

The above is the various embodiments of the flywheel fixing clip of the present invention. The following describes the manner of use of each embodiment. In operation, when the flywheel fixing clip of the embodiment of FIG. 3 to FIG. 5 is in the normal state, the tension spring 70 is normally pulled. Leading the first jaw portion 30 and the second jaw portion 40 such that the first jaw portion 30 and the second jaw portion 40 are relatively close together to be in a clamped state;

When the flywheel fixing clip is to be used, as shown in FIG. 4, the user's thumb is pressed against the first extension 32 of the first jaw 30, and the remaining four fingers are held on the holding unit 20. Pressing the extension 32 of the first jaw 30 to force the first jaw 30 to pull the tension spring 70 and move the first jaw 30 away from the second jaw 40. When the distance between the first jaw portion 30 and the second jaw portion 40 is greater than the toothed disc S to be clamped, the toothed disc S can be placed into the second jaw portion 40 and the first jaw portion 30. Aligning the convex teeth S1 of the toothed plate S with the user still pressing the control end 41, so that the convex teeth S1 of the toothed plate S correspond to the links 61 of the respective chains 60, and the convex teeth S1 are extended. In the space P of the link 61 corresponding to the position, when the position is aligned, the user only needs to loosen the output of the control end 41, the elastic spring of the tension spring 70 can automatically clamp the toothed disc S, and the completion is completed. Positioning.

When the flywheel fixing clip of the example of FIG. 6 is to be used, please refer to FIGS. 7 and 8 to first align the space P of the chain link 61 of the chain 60 on the first jaw 30 with the toothed disk S. The protruding tooth S1 is such that the chain 60 on the first jaw 30 and the toothed disc S are in a stable socket state, and then the joint between the first jaw 30 and the protruding tooth S1 is used as a fulcrum, so that the The first clamping portion 31 of the first jaw portion 30 is pivotally separated from the second clamping portion 41 of the second jaw portion 40, and the first extending portion 31 and the second extending portion 41 are relatively close to each other. Stretching the spring 70, and in a state where the second weir portion 40 is away from the first weir portion 30, the space of the link 61 of the chain 60 on the second weir portion 40 is aligned with the convex tooth S1 of the toothed plate S. Then, the urging force is released, and the tension spring 70 is reset to enable the respective chains 60 to be stably coupled to the protruding teeth 61 to form a fastening.

In addition, when the flywheel fixing clip of the example of FIG. 9 is to be used, the first jaw 30 and the second jaw 40 are made by manipulating the opening and closing of the holding unit 20 as shown in FIGS. The link 61 of the upper chain 60 is correspondingly fitted to the convex tooth S1 of the toothed disc S, and the fastening can be completed.

The above is the state of use of each embodiment of the flywheel fixing clip of the present invention. Although the state of use is different, the first embodiment of the present invention is after the clamping of the toothed disc S, because the first spacing D1 of the present invention is greater than the second The distance D2 is such that the first lay length D1 is a biasing direction of the barb S with respect to the toothed disc S when the clip S is clamped to the toothed disc S, thereby improving the fastening of the toothed disc. The tightening force of S improves the stability of operation.

In the example of FIG. 3 to FIG. 5 of the present invention, since the overall length of the first crotch portion 30 is smaller than the total length of the second crotch portion 40 and the grip unit 20, the overall single-handle structure can be miniaturized. The structural features, but at the same time have two clamping trusses structure, high stability of clamping, and the overall high added value of the product;

3 to FIG. 5 and the first crotch portion 30 and the second crotch portion 40 of the examples of FIGS. 6 to 8 are different, but the chain 60 is also fixedly disposed on the first crotch portion 30. A tension spring 70 is disposed between the first jaw portion 30 and the second jaw portion 40, so that the user can control the clamping or loosening the toothed disc S with one hand, and use the upper jaw portion 30. Very convenient;

In addition, in the second embodiment of the present invention, the two ends of the chain 60 are respectively disposed on the first dam portion 30 and the second dam portion 40, so that the chain 60 is in a stable state at a fixed position. The chain 60 does not have an unintended swing, and the user can surely control the position of the chain 60 through the second jaw 40, thereby having the advantage of good handling;

<Practical Technology>
10‧‧‧Flywheel positioning tool
11‧‧‧Long handle
12‧‧‧Fixed chain
13‧‧‧Free chain
S‧‧‧ tooth plate
S1‧‧‧ convex teeth
A‧‧‧ link
A1‧‧‧Legs <Invention>
20‧‧‧Bearing unit
30‧‧‧First Department
31‧‧‧First clamp section
32‧‧‧First extension
40‧‧‧ Second Ministry
41‧‧‧Second section
42‧‧‧Second extension
50‧‧‧Combination structure
60‧‧‧Chain
61‧‧‧ links
611‧‧‧Links
62‧‧‧ pivot
70‧‧‧ stretching spring
S‧‧‧ tooth plate
S1‧‧‧ convex teeth
P‧‧‧ Space
C‧‧‧shape center point
D1‧‧‧ first distance
D2‧‧‧second distance

Figure 1 is a schematic illustration of a conventional flywheel positioning tool. Figure 2 is a diagram showing the state of use of the conventional flywheel positioning tool. 3 is a perspective view of the flywheel fixing clip of the present invention. 4 is a schematic view showing the operation of the flywheel fixing clip of the present invention. FIG. 5 is a schematic view showing the use state of the flywheel fixing clip of the present invention. 6 is a schematic structural view of another embodiment of a flywheel fixing clip of the present invention. Fig. 7 is a view showing the state of use of the example of Fig. 6. Fig. 8 is a view showing the state of use of Fig. 7; FIG. 9 is a schematic structural view of still another embodiment of the flywheel fixing clip of the present invention. Fig. 10 is a view showing the state of use of the example of Fig. 9.

20‧‧‧Bearing unit

30‧‧‧First Department

31‧‧‧First clamp section

32‧‧‧First extension

40‧‧‧ Second Ministry

41‧‧‧Second section

42‧‧‧Second extension

50‧‧‧Combination structure

60‧‧‧Chain

61‧‧‧ links

611‧‧‧Links

62‧‧‧ pivot

70‧‧‧ stretching spring

P‧‧‧ Space

Claims (6)

A flywheel fixing clip includes a first weir portion and a second weir portion, wherein the first weir portion and the second weir portion are coupled by a joint structure, and the first weir portion and The opposite sides of the second jaw are respectively provided with a chain, wherein: the first jaw and the second jaw are coupled to the coupling structure and can be relatively close to or away from each other, and the first jaw and the second The opposite side of the crotch portion has an arc shape, and the first crotch portion has a first lay length from a farthest end of the shape center point of the joint structure and a shape center point of the joint structure, and the second crotch portion a second lay length between a farthest end of the shape center point of the combined structure and a shape center point of the joint structure, the first lay length being greater than the second lay length; and each of the chains respectively includes a plurality of links Each of the links comprises two oppositely disposed links, and a space is formed between the links, and each of the links of each of the links is pivotally coupled by a pivot pin. The flywheel fixing clip of claim 1, wherein the first jaw is divided by the joint structure into a first clamping section and a first extension, and the second jaw is also in the combined structure. Dividing into a second clamping segment and a second extending segment, the holding unit is a single handle, the second clamping portion is fixedly coupled to the holding unit by the second extending portion, and the second clamping portion The first structure is pivotally coupled to the joint structure, and the first jaw portion and the second jaw portion are further disposed between the first jaw portion and the second jaw portion. a tension spring, one end of the tension spring is fixed to the first clamping portion of the first crotch portion, and the other end is fixed to the second clamping portion of the second crotch portion, the tension spring normally pulls the first The crotch portion and the second crotch portion are such that the first crotch portion and the second crotch portion are relatively close to each other. The flywheel fixing clip of claim 1, wherein the first weir portion and the second weir portion are spaced apart by a distance without being staggered at all. The flywheel fixing clip of claim 1, wherein the first jaw portion is an arcuate sheet body, and an overall length of the first jaw portion is smaller than a sum of lengths of the second jaw portion and the grip unit. The flywheel fixing clip of claim 1, wherein the first jaw is divided by the joint structure into a first clamping section and a first extension, and the second jaw is also in the combined structure. Dividing into a second clamping section and a second extending section, the holding unit is a single handle, and the second jaw is fixedly coupled to the holding unit by the second extension, the first part The pivoting structure of the pivoting portion is pivotally coupled to the coupling structure, and the first extension of the first jaw extends beyond the second jaw to be in a staggered state, the first extension crossing the A tension spring is further disposed between one end of the second jaw and the second jaw of the second jaw, and the tension spring and the chain are respectively located at two sides of the second clamping section. The flywheel fixing clip of claim 1, wherein the holding unit is two grips, and the two grips of the grip unit are fixedly coupled to the first jaw and the second jaw, respectively. And the first crotch portion and the second crotch portion are pivotally coupled through the coupling structure.