TWI538752B - Chain structure - Google Patents

Description

Chainer structure

The present invention relates to an electric chainer, and more particularly to a method for clamping and fixing a chain for performing a chain detaching operation.

Because bicycles have the advantages of being able to travel and have both sports and environmental protection, they have a wide market and further expand the market for bicycles. Among them, the chain is an important component that affects the smoothness of bicycle riding. Therefore, it is necessary to adjust, maintain and replace the work frequently. In order to carry out the chain-breaking operation for the owner, the market has developed a chainer, which is a kind of The vehicle owner can easily apply force to drive the chain shaft of the chain to separate the links for maintenance and cleaning operations.

As shown in FIG. 1, a conventional chain driver 10 is shown, which includes a body 11, a set of grips 12 disposed under the front end of the base 11, and a piercing screw disposed at the rear end of the base 11. The rotating push rod 13 is provided with a concave space 14 at the front end of the seat body 11. The concave space 14 is fixed to the front end of the seat body 11 and has an embedded wall 15 . The upper edge of the insert wall 15 is provided with an arc recess. 151, a front end of the base 11 is provided with a recess 111 corresponding to the arc recess 151, and a distal end of the rotary push rod 13 is inserted into the concave space 14 and fits into the concave recess 14 and the recess 151 The slots 111 are on the same line. Thereby, by arranging two adjacent links of the chain on the embedded wall 15, A chain shaft connecting the two adjacent links is received in the arc recess 151 to obtain a positioning, and then the rotating push rod 13 is twisted, and the rod 131 is pushed against the pocket 111 of the seat body 11 until the column 131 is pushed up. The two links are separated to achieve the purpose of demolition.

It should be noted that the size of the bicycle chain and the assembly structure of the chain piece are not completely identical, and the chain piece itself is not completely a chain piece in the form of a flat plate; however, the aforementioned conventional chain driver 10 is mainly used for positioning the chain. When the embedded wall 15 is non-movably fixed to the seat body 21, the space between the insertion wall 15 and the front end of the seat body 11 is fixed, and a wide chain link cannot be placed, and a wide chain link is small. A gap is formed in the concave space 14 with the front end of the seat body 11, so that the pushing force of the rotary push rod 13 is completely applied to the insert wall 15, and the easy-insertion wall 15 is broken and damaged, so that not only the chain is struck. The device 10 completely loses the chain detaching function, and there is also a problem that the conventional chain driver 10 has extremely low applicability to the chain form.

Referring to FIG. 2 and FIG. 3, in order to improve the foregoing problems, a related arteller further proposes an electric chain driver 20 having an elastic adjusting structure, as shown in a partially enlarged structural diagram of FIG. 2, the chain driver 20 includes a rotary push. The rod group is disposed on the body 21 having a grip and a moving member elastically displaceably disposed on the base body, wherein the seat body 21 has a front end 211 and a rear end 212, and the front end of the seat body 21 A concave space 22 is disposed above the 211, and a sliding space 23 is recessed in the bottom of the concave space 22 for inserting a moving member 24. The moving member 24 includes a slider 241 and a shape formed on the slider 241. An embedding plate 242 having an arc recess 243 is provided, whereby the moving member 24 is reciprocated in the sliding space 23 by providing an elastic member 25 between the wall surface of the sliding space 23 and the slider 241. The elastic displacement is such that the distance between the inserting plate 242 and the front end 211 of the seat body 21 is changed. As shown in FIG. 2, the chain A is embedded and fixed on the inserting plate 242, and the elastic member 25 abuts against the seat. On the front end 211 of the body 21, the chain 20 is improved on different sizes of chains The adaptability reduces the probability of the embedded plate 242 being damaged by force.

Although the conventional chain driver 20 can clamp and fix different sizes of chains through the movable inserting plate 242 and reduce the probability of damage, however, as shown in FIG. 3, when the widths of the adjacent two links A1 are different. When the chain A is urged against the front end 211 of the seat body 21 by the abutting bar 261 of the rotary push rod 26, the chain A can still be unstable due to the size problem, and the chain axis A2 is deviated from the biasing direction of the abutting column 261, which is equivalent. It is easy to be damaged. In addition, as shown in FIG. 2, the conventional chain driver 20 is provided with a slope 244 on the upper edge of the inserting plate 242 to guide the displacement of the inserting plate 242 when the chain A is applied to the inclined surface 244, thereby embedding It is placed on the embedded plate 242; however, according to the size of the bicycle chain, the concave space 22 on the body 21 of the conventional chain driver 20 is limited, and when the chain structure is not easy to be embedded, the fingers do not easily protrude into the concave space 22, The embedding plate 242 which is continuously abutted by the elastic member 25 will be difficult to be operated and controlled, and the operation convenience of the conventional winder 20 is insufficient.

The object of the present invention is to provide a chain structure, which mainly provides a guiding and positioning structure on a base of the chain driver, which comprises a chain plate member and a push button, and a groove wall of the seat body A convex flange is disposed corresponding to the chain plate member, thereby controlling the displacement of the chain plate member for fixing the chain in the groove of the seat body through the push button operation, thereby adjusting the chain plate member and the convex contact The distance of the edge, the guiding chain is embedded and positioned on the chain plate member and clamped between the chain plate member and the convex flange to provide an ergonomic and easy to put the chain firmly into the chain. The operation of the chainer, at the same time, the application of a variety of chain sizes, as well as the high degree of positioning of the chain to avoid the improper use of force to cause the chain or chain damage and other technical effects.

Therefore, in order to achieve the above object, the present invention provides a chain drive structure, including: a rotary pusher is arranged on a body having a grip and a chain plate member and a push button elastically displaceably disposed on the base body, wherein: the base body has an opposite front end portion and a rear end a recess between the front end portion and the rear end portion, the recess being defined between a front wall of the front end portion and a rear wall of the rear end portion, the front end portion being more connected The groove is provided with a groove, and the rear end portion is provided with a screw hole communicating with the groove at a position corresponding to the groove; the rotary push rod sequentially forms a resisting column, a screw and a handle, the rotation The push rod is screwed into the screw hole by the screw, and the resisting rod extends into the groove and faces the receiving groove; wherein the front end portion of the seat body penetrates the front wall and is connected to the groove to provide a set of a flange is formed in the mouth of the group, and the front wall is connected to the groove to form a convex flange toward the groove; the chain plate member has a joint portion and an embedding portion. The upper edge of the inserting portion is provided with at least one arc concave, and the chain connecting plate member is accommodated in the concave position at a position corresponding to the position of the joint portion And the position of the arcuate concave portion of the embedded portion relative to the convex abutting edge and the rotating push rod; and the push button has a set of joint portions, a pressing portion and a connection between the pressing portion and the connecting portion The yoke of the set is sleeved with an elastic member extending through the set of openings into the groove and the joint portion of the chain plate member, and the pressing portion protrudes from the front end portion and is different from the groove One end of the position, and the two ends of the elastic member respectively abut against the abutting shoulder and the retaining edge and normally push the push button to pull the connecting plate member toward the convex abutting edge.

Preferably, the aforementioned chain drive structure of the present invention, wherein the elastic member is a coil spring.

The techniques, means, and other techniques employed in connection with the present invention to achieve the above objectives For the sake of efficacy, the preferred embodiments are described in detail with reference to the drawings.

[study]

A‧‧‧Chain

A1‧‧‧ link

A2‧‧‧Chain

10‧‧‧Chainer

11‧‧‧

111‧‧‧ 容容

12‧‧‧ Grip

13‧‧‧Rotary putter

131‧‧‧ arrived at the column

14‧‧‧ concave space

15‧‧‧ embedded wall

151‧‧‧ arc concave

20‧‧‧Chaper

21‧‧‧ body

211‧‧‧ front end

212‧‧‧ Backend

22‧‧‧ concave space

23‧‧‧Sliding space

24‧‧‧Mobile parts

241‧‧‧ Slider

242‧‧‧ embedded board

243‧‧‧ arc concave

244‧‧‧Bevel

25‧‧‧Flexible parts

26‧‧‧Rotating putter

261‧‧‧ arrived at the column

〔this invention〕

A‧‧‧Chain

A1‧‧‧ link

A2‧‧‧Chain

30‧‧‧ body

301‧‧‧ front end

302‧‧‧ Back end

31‧‧‧ Groove

311‧‧‧ front wall

312‧‧‧ Back wall

313‧‧‧High-order surface

314‧‧‧Low-order surface

315‧‧‧Facade

32‧‧‧Settings

321‧‧‧ 缘缘

33‧‧‧ 容容

34‧‧‧

35‧‧‧ screw holes

36‧‧‧Assemble slot

40‧‧‧Rotating putter

41‧‧‧ screw

42‧‧‧Handle

43‧‧‧Agreement

50‧‧‧Chain plate

51‧‧‧Combination Department

511‧‧‧ screw holes

52‧‧‧ embedded department

53‧‧‧ arc concave

60‧‧‧ push button

61‧‧‧Team

611‧‧ thread

62‧‧‧ Pressing Department

63‧‧‧ Shoulder

64‧‧‧Flexible components

65‧‧‧ Limit ring

70‧‧‧ Grip

71‧‧‧Connecting column

72‧‧‧shims

Figure 1 is a schematic side view showing the structure of a conventional fixed type chain drive.

2 is a side elevational, cross-sectional view showing a partial structure of a conventional movable type chain drive.

Fig. 3 is a schematic top view showing the state of use of the conventional movable type chain drive.

Figure 4 is a perspective view showing the exploded structure of the fastener of the present invention.

Fig. 5 is a perspective view showing the combined structure of the winder of the present invention.

Figure 6 is a side elevational view showing the combined structure of the winder of the present invention.

Fig. 7 is a schematic cross-sectional view showing the combined structure of the winder of the present invention.

Fig. 8A is a schematic cross-sectional view showing the combined structure of the chain driver of the present invention.

Figure 8B is an enlarged schematic view showing a partial combination structure of the fastener of Figure 8A of the present invention.

Fig. 9A is a schematic top view showing the combined structure of the chain former of the present invention.

Figure 9B is an enlarged schematic view showing a partial combination structure of the fastener of Figure 9A of the present invention.

Referring to FIG. 4 to FIG. 9B, a specific embodiment of the structure of the winder of the present invention will be described.

As shown in FIG. 2, FIG. 3 and FIG. 4, the chain structure of the present invention comprises a rotary pusher 40 that is rotated on a body 30 having a grip 70 and is disposed on the base 30 elastically displaceably. a chain plate member 50 and a push button 60, wherein: the base body 30 is substantially cylindrical in shape, having a front end portion 301 and a The rear end portion 302 defines a recess 31 between the front end portion 301 and the rear end portion 302. The recess 31 is defined by a front wall 311 and the rear end portion 302 of the front end portion 301. A front end portion 301 is formed through the front wall 311 and communicates with the recess 31 to form a plurality of openings 32. The assembly port 32 is formed with a retaining edge 321 at a position communicating with the recess 31, and the front end is formed. The portion 301 is further connected to the recess 31 and is provided with a receiving slot 33 for receiving the driven chain shaft. The front wall 311 of the base body 30 is connected to the recess 33 and is convex toward the recess 31. A convex flange 34 is formed, and the rear end portion 302 is provided with a screw hole 35 communicating with the groove 31 at a position corresponding to the groove 33.

In the present embodiment, as shown in FIG. 6, the bottom of the recess 31 of the base body 30 has a class structure having a front end portion 301 corresponding to the seat body 30 and a front wall 311 of the rear end portion 302. And a rear wall 312, the bottom of the recess 31 has a high-order surface 313 adjacent to the rear wall 312, a low-order surface 314 adjacent to the front wall 311, and a high-order surface 313 and the low-order surface The convex surface 315 of the base body 314 is protruded from the front wall 311. Further, the convex flange 34 of the present invention can be integrally formed on the groove 31. On the front wall 311, or at the front end portion 301 of the base body 30, a slot is preset, and a hollow cylindrical portion with a wire-shaped notch on the side is placed in the slot, and the end of the component is beyond the slot. The convex flange 34 is formed on the front wall 311 of the seat body 30.

The rotating push rod 40 sequentially forms a resisting rod 43, a screw 41 and a grip 42. The rotating push rod 40 is screwed into the screw hole 35 by the screw 41, and the resisting rod 43 extends into the recess 31 and Relative to the pocket 33.

The chain plate member 50 is disposed in the recess 31 of the base body 30 and is substantially a laterally extending plate-shaped member. The chain plate member 50 has a joint portion 51 in the form of a body and a mounting portion 52 in the form of a plate. The upper edge of the insert portion 52 is provided with a singular number of at least one arc recess 53 for accommodating the chain. a coupling shaft 51 is received in the recess 31 of the base body 30 corresponding to the assembly opening 32 of the base body 30, and the arcuate recess 53 of the inserting portion 52 is opposite to the convex flange 34 and the rotation The position of the push rod 40.

In this embodiment, the number of the arc recesses 53 is at least one, preferably three; wherein, when the chain link member 50 has more than one single arc recess 53, the embedded portion 52 extends laterally. And the plate-shaped structure having a length larger than the width of the base body 30, the joint portion 51 formed into the block structure is located below the positive central arc recess 53 of the singular number of arc recesses 53, so that the link plate member 50 is combined When the portion 51 is a bearing fulcrum, the fitting portion 52 can be balanced at both ends, so that the chain is firmly embedded.

The push button 60 has a plurality of connecting portions 61, a pressing portion 62, and an abutting shoulder 63 that is coupled between the pressing portion 62 and the connecting portion 61. The connecting portion 61 is sleeved with a resilient member 64. The elastic member 64 is a coil spring that accumulates an elastic force after being compressed, and the assembly portion 61 and the elastic member 64 are inserted into the assembly opening 32 of the base body 30, and the end of the assembly portion 61 and the chain. The joint portion 51 of the plate member 50 is assembled, and the two ends of the elastic member 64 are respectively abutted against the yoke 63 and the rim 321 and the push button 60 is normally pushed to pull the link member 50 to the convex portion. The edge 34 is close.

In this embodiment, the coupling portion 51 of the chain plate member 50 is provided with a screw hole 511. The end of the assembly portion 61 of the push button 60 is provided with a thread 611 for threading the push button 60 through the assembly portion 61. The 611 is locked with the screw hole 511 of the joint portion 51 of the chain plate member 50. In addition, in this embodiment, the rim 321 of the assembly port 32 of the base body 30 is in the form of a semicircle for arranging the grip 70, so that the assembly portion 61 of the push button 60 is sleeved with the elasticity. The component 64 and a limiting ring 65 are disposed at the end of the connecting portion 61 and the connecting portion 51 of the connecting plate member 50. The two ends of the elastic member 64 abut against the abutting shoulder 63 of the push button 60 and the limit. On the bit ring 65, the elastic member 64 is more stably disposed inside the seat body 30 by providing the stopper ring 65.

As shown in FIG. 4, the front end portion 301 of the base body 30 is opposite to the receiving slot 33, and an assembly slot 36 is disposed. The end of the grip 70 is provided with a connecting post 71 for inserting the grip 70 through its connecting post 71. The assembly groove 36 of the base body 30 is assembled and coupled to the front end portion 301 of the base body 30 opposite to the cavity 33 of the base body 30. The connecting post 71 and the assembly slot 36 may be screw-locked, or may be achieved by the common means of fixing the grip 70 and the base 30 in the technical field of the present invention; The connecting post 71 and the assembling groove 36 are respectively provided with a screw structure and are screwed and coupled by the screw, and the connecting post 71 is externally sleeved with a plurality of spacers 72 to stably lock the grip 70 to the seat. The front end portion 301 of the body 30.

Therefore, the joint portion 51 of the chain plate member 50 is pulled by the elastic member 64 of the push button 60 and normally abuts against the front wall 311 of the recess 31 of the seat body 30. The joint portion 51 of the button 60 pulling the chain plate member 50 is displaced between the front wall 311 and the elevation surface 315 of the recess 31 of the seat body 30, and the insert portion 52 and the convex flange 34 are adjusted. The distance between them.

The above is the main components of the embodiment of the present invention and the configuration description thereof. As for the operation mode and the function of the preferred embodiment of the present invention, please refer to FIG. 8 and FIG. .

The chain structure of the present invention is shown in FIG. 6 and FIG. 7 in a normal state. The chain plate member 50 is received in the recess 31 of the base 30 and is coupled to the push button 60, and the elastic member is transmitted through the elastic member. 64 causes the push button 60 to pull the chain link member 50 against the front wall 311 of the recess 31. When operating the chain drive of the present invention, the user's hands are held by one hand on the rotary push rod 40 to operate the rotary pusher 40 to rotate toward the chain A to drive the chain shaft A2, and the other hand to hold the grip 70 , for stabilizing the chain driver and balancing the screwing force of the rotary push rod 40; wherein, as shown in FIG. 8A and FIG. 8B, Before the operation, the chain A is embedded in the embedding portion 52 of the chain plate member 50. At this time, the pusher button of the present invention is disposed on the end surface of the base member 30, so that it is gripped on the grip 70. As long as the hand moves the thumb, the push button 60 can be pressed to pull the displacement of the chain member 50 in the groove 31, and the distance between the embedded portion 52 and the convex flange 34 can be easily adjusted to guide different sizes. The chain is stably embedded and positioned on the embedded portion 52, so that the chain driver of the present invention can not only adapt to the clamping of a plurality of sizes of chains, but also has the effect of greatly facilitating the operation of the embedded chain.

In the present embodiment, as shown in FIG. 6 and FIG. 8B, the groove 31 of the base body 30 of the present invention has a slot structure at the bottom, a front wall 311, a low step surface 314 of the groove 31, and the like. The fascia 315 defines a moving space of the joint portion 51 of the chain member 50 so that the insert portion 52 of the chain member 50 passes through the joint portion 51 in front of the recess 31 of the seat body 30. The wall 311 and the elevation 315 are displaced to adjust the distance between the insertion portion 52 and the convex flange 34. The resisting post 43 of the rotary push rod 40 is normally placed in the space defined by the rear wall 312 and the high-order surface 313 of the recess 31 as shown in FIG. 7 and is operated as shown in FIGS. 8A and 8B. Rotating above the moving space, the rotating push rod 40 can be placed in the space defined by the rear wall 312 and the high-order surface 313 to avoid the rotation of the rotating plate 40 when the chain plate 50 is adjusted in displacement. Column 43 collision is damaged.

Further, as shown in FIGS. 9A and 9B, when the chain A is embedded in the fitting portion 52 of the winder of the present invention and is biased by the abutting bar 43 of the rotary pusher 40 to strike the chain axis A2, the chain A is a chain. The structure of the circumferential side of the shaft A2 is abutted against the convex flange 34 of the base body 30, so that the force receiving point of the chain driver is the convex flange 34, in addition to effectively avoiding the width of the adjacent link A1 as shown in FIG. 9B. The changed chain A directly abuts against the floating phenomenon caused by the front wall 311 of the groove 31. Through the convex flange 34, the chain driver of the present invention further has a chain axis A2 for ensuring that the chain A is located at the rotary push rod 40. In the direction of the force, the effect of the positional displacement of the chain A is avoided and the damage is not caused by the force.

In summary, the present invention can achieve the above-mentioned operation convenience through the above-mentioned chainer structure, can be applied to a plurality of size chains, stabilize the chain, and has high positioning accuracy on the chain driver to avoid the chain driver. The structure or chain is improperly damaged and other effects, Cheng has already met the requirements of the patent application, and filed a patent application according to law, praying for review and early granting of patents.

30‧‧‧ body

301‧‧‧ front end

302‧‧‧ Back end

31‧‧‧ Groove

32‧‧‧Settings

321‧‧‧ 缘缘

33‧‧‧ 容容

34‧‧‧

35‧‧‧ screw holes

36‧‧‧Assemble slot

40‧‧‧Rotating putter

41‧‧‧ screw

42‧‧‧Handle

43‧‧‧Agreement

50‧‧‧Chain plate

51‧‧‧Combination Department

511‧‧‧ screw holes

52‧‧‧ embedded department

53‧‧‧ arc concave

60‧‧‧ push button

61‧‧‧Team

611‧‧ thread

62‧‧‧ Pressing Department

63‧‧‧ Shoulder

64‧‧‧Flexible components

65‧‧‧ Limit ring

70‧‧‧ Grip

71‧‧‧Connecting column

72‧‧‧shims

Claims (2)

The utility model relates to a chain driver structure, comprising a rotating push rod rotating group on a body having a grip rod and a chain plate member and a push button elastically displaceably disposed on the base body, wherein: the seat body has opposite a front end portion and a rear end portion, the seat body defines a groove between the front end portion and the rear end portion, the groove is defined by a front wall of the front end portion and a rear wall of the rear end portion The front end portion is further connected to the groove to provide a receiving groove, and the rear end portion is provided with a screw hole communicating with the groove at a position corresponding to the groove; the rotating push rod sequentially forms a resisting column and a screw And a handle, the rotary push rod is screwed into the screw hole by the screw, and the resisting rod extends into the groove and faces the receiving groove; wherein the front end portion of the seat body penetrates the front wall and communicates The groove is provided with a set of openings, and a set of edges is formed in the set of openings, and the front wall is coupled to the groove to protrude toward the groove to form a convex flange; the chain plate member has a joint portion And an embedding portion, the upper edge of the embedding portion is provided with at least one arc concave, and the connecting plate member corresponds to the position of the joint portion The position of the mouth is received in the groove, and the arc concave position of the insert portion is opposite to the position of the convex flange and the rotary push rod; and the push button has a set of joints, a pressing portion and a joint An abutting shoulder between the pressing portion and the connecting portion, the connecting portion is sleeved with an elastic member extending through the set opening into the groove and the connecting portion of the connecting plate member, and the pressing portion is protruded The end portion of the elastic member is different from the end of the groove, and the two ends of the elastic member respectively abut against the yoke and the rib and pushes the push button normally to pull the link member to approach the convex edge. . The chain drive structure of claim 1, wherein the elastic element is a coil spring.