Chain dismounting tool and chain dismounting assembly

Abstract

The invention discloses a chain dismounting tool. The chain dismounting tool is provided with a main body, the slide way is arranged in the main body; the driving shaft is pivoted in the main body in an in-situ rotating manner; the two slide blocks are arranged in the slide way, each slide block is provided with a jaw, and the two jaws are exposed out of the main body from one side of the main body; when the driving shaft is in a rotating direction, the driving shaft drives the two sliding blocks to synchronously move in opposite directions and get close to each other; when the driving shaft is in the other rotating direction, the driving shaft drives the two sliding blocks to synchronously and reversely move to be far away from each other; the two jaws move along with the two sliding blocks. A chain disassembling assembly comprises the chain disassembling tool, and a seat part, a concave chamber and an abutting seat which are arranged on the main body, and the lifting pin is screwed in a lifting pin screw hole formed in the seat part, and when the lifting pin rotates, the lifting pin moves into or out of the concave chamber.

Description

Technical Field

[0001] The invention relates to a hand tool used for a bicycle, and more particularly to a disassembly tool and a disassembly component for disassembling and assembling a quick-release chain. Background Art

[0002] The types of bicycle chains include a quick-release chain having a pair of cleats that can be quickly coupled to and separated from the links of the chain, so that the bicycle chain can be easily assembled or disassembled.

[0003] In order to allow bicycle enthusiasts to easily disassemble and assemble bicycle chains, the inventor developed my country's I779856 chain quick-release device invention patent. This prior art provides a quick-release chain disassembler that can disassemble and assemble a quick-release chain. It is small in size and easy to carry, and has practical effects.

[0004] The inventor adheres to the spirit of continuous improvement and continuously innovates and develops special tools for disassembling quick release chains, and completes the present invention through research and development. Summary of the invention

[0005] An object of the present invention is to provide a chain disassembly tool for disassembling and assembling a quick release chain.

[0006] Another object of the present invention is to provide a chain disassembly assembly that can disassemble and assemble a quick-release chain and has the function of disconnecting and connecting chain links.

[0007] The present invention provides a chain disassembly tool, comprising:

[0008] A main body; a slideway disposed in the main body;

[0009] a drive shaft pivotally mounted in the main body in a manner of rotating in situ;

[0010] Two sliders are slidably disposed in the slideway; each of the two sliders is provided with a jaw, and the two jaws are exposed from one side of the main body;

[0011] When the driving shaft rotates in one direction, it drives the two sliders to move toward each other synchronously and approach each other; when the driving shaft rotates in another direction, it drives the two sliders to move in the opposite direction synchronously and move away from each other; the two jaws move along with the two sliders respectively.

[0012] Thus, when the drive shaft is rotated, the two sliders can be driven to move synchronously, so that the two jaws can be synchronously moved closer to or farther from each other to disassemble or assemble the quick-release chain. When the chain disassembly tool is used, the drive shaft does not move and there is no axial position change.

[0013] Preferably, the drive shaft is pivoted in the slideway, and a first threaded portion and a second threaded portion are provided on the shaft, and the two threaded portions are opposite threads; the two sliders are each provided with a first screw hole and a second screw hole, and the two screw holes have opposite threads; the two sliders are respectively screwed to the first threaded portion and the second threaded portion of the drive shaft with the first screw hole and the second screw hole.

[0014] Preferably, two end plugs are respectively arranged at two ends of the slideway; the two ends of the drive shaft are respectively pivoted in the two end plugs, the drive shaft is constrained by the two end plugs, and the two ends of the drive shaft are supported by the two end plugs. Preferably, the circumference of the slideway is provided with at least one first embedded part; the circumference of the two sliders is respectively provided with at least one second embedded part, and the second embedded parts of the two sliders are embedded in the first embedded part of the slideway, so that the slider will not rotate when it moves in the slideway.

[0015] Preferably, the shaft of the drive shaft has a central portion located between the first and second threaded portions; the central portion of the drive shaft is supported in the slideway.

[0016] The present invention also provides a chain disassembly assembly, comprising:

[0017] The aforementioned chain removal tool; and

[0018] A seat, a recess and a stop are provided on the main body; a push pin screw hole passes through the seat, one end of which is connected to the recess; a recess is provided in the stop, one end of which is connected to the recess;

[0019] A push pin has a screw portion, a head portion and a pin portion, which are respectively arranged at the two ends of the screw portion. The push pin is screwed to the push pin screw hole of the seat portion through the screw portion, and the pin portion faces the recessed chamber and the support seat; when the push pin rotates, the push pin and the pin portion move into or out of the recessed chamber.

[0020] Preferably, the main body is provided with a coupling portion, so that the chain can be disassembled and coupled to other items, such as a folding tool set.

[0021] Preferably, the head is formed with a pivoting portion, so that the chain can be disassembled to be pivotally connected to other objects, such as a folding tool set.

[0022] Preferably, the jaws of the two sliders are exposed on the first side of the main body; the seat, the recess and the stop are arranged on the second side of the main body; the axial direction of the ejector screw hole is parallel to the axial direction of the slideway. The folding tool has a compact size.

[0023] Beneficial effects of the invention: The invention is used for disassembling and assembling quick-release chains. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The purpose, features and effects of the present invention can be understood from the following description and drawings of the preferred embodiments, in which:

[0025] Figure 1 It is a cross-sectional view of a chain removal tool according to a preferred embodiment of the present invention.

[0026] Figure 2 It is a three-dimensional diagram of the chain disassembly assembly of a preferred embodiment of the present invention.

[0027] Figure 3 yes Figure 2 Exploded three-dimensional diagram.

[0028] Figure 4 yes Figure 2 Sectional view along section line 4-4.

[0029] Figure 5 yes Figure 2 A three-dimensional view of the chain removal tool and the chain removal assembly at another angle.

[0030] Figure 6 yes Figure 5 Exploded three-dimensional diagram.

[0031] Figure 7 and Figure 8 This is an application example of the chain disassembly assembly of the present invention combined with a folding tool set.

[0032] Fig. 9 The chain removal tool of the present invention is shown in Figure 7 An example of an application is a perspective view of disassembling a quick release chain.

[0033] Fig.10 yes Fig. 9 Longitudinal section of .

[0034] Fig.11 yes Figure 7 Schematic diagram of the chain disassembly composition for use with broken chain.

[0035] Fig.12 and Fig.13 This is another application example of the chain disassembly assembly of the present invention combined with a folding tool set. Fig.14 The chain removal tool of the present invention is shown in Fig.12 An example of an application is a perspective view of disassembling a quick release chain.

[0036] Fig.15 yes Fig.14 Longitudinal section of .

[0037] 10 Chain removal tools 15 Chain removal components

[0038] 20 main body 201 back plate 21 first end

[0039] 22 second end 24 slideway 25 joint

[0040] 251 perforation 26 end plug 261 pivot hole

[0041] 27 flange 28 opening 29 first engaging portion

[0042] 30 driving shaft 31 end 32 first threaded portion

[0043] 34 second threaded portion 35 central portion 36 operating portion

[0044] 40, 41 Sliding block 42 First screw hole 44 Second screw hole

[0045] 46 jaw 48 second engaging portion

[0046] 50 seat portion 51 ejector screw hole 54 recessed chamber

[0047] 55 positioning block 57 seat 58 recessed

[0048] 60, 60' ejector pin 62 screw rod 63, 63' head

[0049] 631 operating portion 64 pin portion

[0050] 70 folding tool set 72 shaft 75 hexagonal wrench

[0051] 76 Hand Tools

[0052] 80 quick-release chain 82 buckle 821 buckle hole

[0053] 84, 85 buckle pin 86 roller

[0054] C1, C2 axial DETAILED DESCRIPTION

[0055] Figure 1 2 is a cross-sectional view of a preferred embodiment of the chain removal tool 10 provided by the present invention. Figures 2 to 6 A chain disassembly assembly 15 of a preferred embodiment of the present invention is shown. The chain disassembly assembly 15 is a composite tool set, comprising: Figure 1 The structure of the chain removing tool 10 is shown.

[0056] See also Figures 1 to 3 The chain disassembly tool (hereinafter referred to as disassembly tool) 10 comprises: a main body 20, a drive shaft 30 and two sliders 40, 41. The main body 20 has a first end 21 and a second end 22; a slideway 24 is provided in the main body 20 and is located between the first end 21 and the second end 22.

[0057] The front section and the rear section of the shaft of the drive shaft 30 are respectively provided with a first threaded portion 32 and a second threaded portion 34, and the two threaded portions 32 and 34 are opposite threads, that is, one threaded portion is a clockwise thread, and the other threaded portion is a counterclockwise thread. The drive shaft 30 is pivoted in the main body 20 in a manner of rotating in situ. In detail, in this embodiment, the two ends of the slideway 24 penetrate the first end 21 and the second end 22 of the main body 20, and the two end plugs 26 are respectively screwed to the two ends of the slideway 24 to close the slideway 24. The drive shaft 30 is installed in the slideway 24, and its two ends 31 are cylindrical, and are respectively penetrated and pivoted in the pivot holes 261 of the two end plugs 26. In this way, the drive shaft 30 is constrained by the two end plugs 26 and can only rotate in situ in the slideway 24, and will not escape from the slideway. In addition, a cylindrical central portion 35 is formed on the shaft of the drive shaft 30 and is located between the two threaded portions 32 and 34. The central portion 35 is supported by an annular flange 27 provided in the slideway 24. Figure 1 , and the two ends 31 of the driving shaft 30 are supported by the two end plugs 26. In this way, in the slideway 24, the two ends 31 and the central portion 35 of the driving shaft 30 are supported, so that the driving shaft 30 can rotate stably and can drive the sliders 40 and 41 to move smoothly and stably.

[0058] The two sliders 40 and 41 are respectively provided with a first screw hole 42 and a second screw hole 44 penetrating through the two end surfaces thereof. The two screw holes 42 and 44 are threads in opposite directions. Two jaws 46 are respectively fixed to the two sliders 40 and 41. The jaws and the sliders are integrally formed. The two sliders 40 and 41 are slidably mounted in the slideway 24. The screw holes 42 and 44 are respectively screwed to the two threaded portions 32 and 34 of the drive shaft 30. When the drive shaft 30 rotates, the two sliders 40 and 41 can be driven to move synchronously. The two jaws 46 are provided from the first side (e.g., Figure 2 and Figure 3 The opening 28 provided on the top side of the main body 20 is exposed and corresponds to the main body 20. When the drive shaft 30 rotates in a clockwise direction, such as a clockwise direction, the two sliders 40 and 41 are driven to move toward each other synchronously, that is, the two sliders 40 and 41 move inwardly and approach each other, and the two jaws 46 move toward each other as the two sliders move toward each other, thereby reducing the distance between them. When the drive shaft 30 rotates in another clockwise direction, such as a counterclockwise direction, the two sliders 40 and 41 are driven to move in the opposite direction synchronously, that is, the two sliders 40 and 41 move outwardly and move away from each other, and the two jaws 46 move away from each other as the two sliders 40 and 41 move in the opposite direction, thereby increasing the distance between them.

[0059] In order to prevent the sliders 40 and 41 from rotating when they are displaced in the slideway 24, the peripheral wall of the slideway 24 is axially provided with at least one first interlocking portion 29, and the peripheral surface of each slider is provided with at least one second interlocking portion 48, which is interlocked with the first interlocking portion 29. The first and second interlocking portions 29 and 48 are concave-convex matching structures, interlocked with each other. The interlocking structure can prevent the sliders from rotating. There are other implementations for preventing the sliders from rotating, which are not limited to those shown in this embodiment.

[0060] Please refer to Figures 4 to 6 The chain disassembly assembly (hereinafter referred to as the disassembly assembly) 15 comprises a main body 20 of the chain disassembly tool 10 and a chain breaking assembly disposed on the main body 20. A second side (referring to the side other than the first side) of the circumference of the main body 20 is linearly provided with a seat 50, a recess 54 and a stop 57 in sequence. A push pin screw hole 51 passes through the seat 50 and communicates with the recess 54. A plurality of positioning blocks 55 are disposed in the recess 54. A recess 58 is disposed in the stop 57, one end of which is communicated with the recess 54, and the recess 58 is aligned with the axial direction of the push pin screw hole 57.

[0061] A push pin 60 has a screw portion 62, a head portion 63 and a pin portion 64, which are respectively arranged at the outer end and the inner end of the screw portion 62. The push pin 60 is screwed to the push pin screw hole 51 of the seat 50 by the screw portion 62, and the pin portion 64 faces the recess 54 and the stop 57. The push pin 60 can be rotated from the head portion 63 to move into or out of the recess 54. The seat, the recess, the stop and the push pin 60 form the chain breaking assembly.

[0062] In order to save the volume of the disassembly assembly 15 and the main body 20, the axial direction C1 of the slideway 24 and the axial direction C2 of the ejector screw hole 51 are parallel. Figure 4 .

[0063] The present invention is applied, such as Figure 2 and Figure 5 As shown, a coupling portion 25 may be further provided on the main body 20. The coupling portion 25 is provided with a through hole 251, which can be pivotally mounted on a shaft 72 of a folding tool set 70. Figure 7 By the design that the joint 25 is pivotally connected to the shaft 72, the chain disassembly assembly 15 can be stored in the disassembly tool set 70, or as Figure 8 As shown, the disassembly assembly 15 is pulled outward for use. Preferably, the coupling portion 25 is fixedly connected to the other end of the stop 57.

[0064] Figure 1 The main body 20 of the chain removal tool 10 may also be provided with the coupling portion 25 so that the removal tool 10 can be pivotally connected and stored in a folding tool set.

[0065] See also Fig. 9 and Fig.10 , showing the use of the chain disassembly tool 10 of the chain disassembly assembly 15 to disassemble a quick release chain 80. The quick release chain 80 has a pair of buckles 82, and the chain link formed by the pair of buckles 82 has two buckle pins 84 and 85. The buckle pin 84 buckles the buckle hole 821 of one buckle plate 82; similarly, the buckle pin 55 buckles the buckle hole of the other buckle plate.

[0066] When the quick release chain 80 is to be disassembled, the chain is placed on the disassembly tool 10 so that the two jaws 46 extend into the chain and contact the rollers 86 of the two buckle pins 84, 85. The main body 20 is provided with a support plate 201 on the circumference of the first side for the chain 80 to lean against so that it will not bend.

[0067] The drive shaft 30 is rotated with a hand tool, for example, a hexagonal wrench 75 is inserted into the hexagonal hole-shaped operating portion 36 provided at one end of the drive shaft 30, and the drive member 30 is rotated in a clockwise direction (for example, clockwise direction) from the operating portion 36. The drive member 30 rotates in situ and synchronously drives the two sliders 40 and 41 to move toward each other through the first and second threaded portions 32 and 34. The two sliders drive the two jaws 46 to approach each other synchronously, so that the two jaws 46 drive the two buckle pins 84 and 85 to move closer to each other, so that the two buckle pins 84 and 85 no longer buckle the buckle hole 821 of the buckle plate 82. Fig. 9 and Fig.10 The two buckle pins 84 and 85 are shown to be in a state of not buckling the buckle holes. Thus, the two buckle pins 84 and 85 can be separated from the two buckle plates 82 respectively to unlock the quick release chain 80.

[0068] See also Fig.11 The chain disassembly assembly 15 can be used to disconnect the chain. When the chain is to be disconnected, a chain 88 (which can be a conventional chain or a quick-release chain) is placed across the recess 54, and the pin 64 of the ejector pin 60 is aligned with a chain pin of the chain 88. Then, the ejector pin 60 is rotated from the head 63 with a hand tool 76, such as a hexagonal wrench inserted into a hexagonal hole-shaped operating portion 631 provided in the head 63 to rotate the ejector pin 60, so that the ejector pin moves toward the recess 54 and the stop 57. The pin portion 64 extends into the chain 88, and a chain pin of the chain is ejected from the chain, and the ejected chain pin falls into the recess 58 of the stop 57. In this way, the links of the chain 88 can be disconnected and connected, thereby reducing or increasing the links and adjusting the length or tightness of the chain.

[0069] Fig.12 , 13Another application example of the chain disassembly assembly 15 of the present invention combined with a folding tool set is shown, wherein: the head 63' of the ejector pin 60' is set in a ring shape to form a pivoting portion with a through hole, and the head 63' is pivotally connected to a shaft 72 of a folding tool set 70, and the ejector pin 60' becomes a rotating arm for storing the disassembly assembly 15 in the folding tool set 70 or pulling it out for use. In this application example, the main body 20 is not provided with a joint portion.

[0070] Fig.14 and Fig.15 Display Fig.12 The chain disassembly tool 10 of the chain disassembly assembly 15 is used to disassemble a quick release chain 80. When the quick release chain 80 is to be disassembled, the chain is placed on the disassembly tool 10, and the two jaws 46 are extended into the chain and contact the rollers 86 of the two buckle pins 84 and 85 of the chain. The driving member 30 is rotated in a clockwise direction by a tool 74 of the folding tool set 70, and the driving member 30 rotates in place, and the two sliders 40 and 41 are synchronously driven to move toward each other through the first and second threaded portions 32 and 34, driving the two jaws 46 to synchronously approach each other, and the two jaws 46 drive the two buckle pins 84 and 85 to move closer to each other, so that the two buckle pins 84 and 85 no longer buckle the buckle holes 821 of the buckle plate 82, so as to unlock the quick release chain 80.

[0071] Fig.14 The chain disassembly assembly 15 shown can also be used to disconnect the chain in the same manner as the chain disassembly assembly 15. Fig.11 What is shown is the same and will not be elaborated on.

[0072] The actuation relationship of the chain disassembly tool 10 of the present invention adopts a method in which the drive shaft 30 does not move linearly to drive the two sliders 40 and 41 to move synchronously toward or away from each other, and its structural design is different from similar items. The drive shaft 30 only rotates and does not move. The drive shaft 30 does not move in the axial direction, so it does not protrude from the main body 20. The drive shaft does not change its position in the axial direction at any time (for example, during use or when stored), which is convenient for use and storage. The chain disassembly component 15 of the present invention is a tool set with multiple functions, which has the dual functions of disassembling and assembling quick-release chains and breaking and combining chains, and has high applicability and convenience. The chain disassembly tool 10 is arranged on the first side of the circumference of the main body 20, and the chain breaking component with the chain breaking function is arranged on the second side of the circumference of the main body. The first side and the second side are preferably opposite sides of the main body, such as the top side and the bottom side of the main body. In this way, the chain disassembly component 15 is light in size, does not take up space, and is easy to carry.

[0073] The above embodiments are only for illustrating the features of the present invention and are not intended to limit the present invention. Any equivalent modifications of the present invention shall be deemed to be within the protection scope of the present invention. The present invention is a pioneering structure of similar articles and has improved efficacy, which is in line with the patent requirements.

Claims

1. A chain disassembly tool, characterized in that: Contains: A main body having a first end and a second end; a slideway disposed in the main body and formed between the first end and the second end; a drive shaft pivotally mounted in the main body in a manner of rotating in situ; Two sliders are slidably disposed in the slideway; each of the two sliders is provided with a jaw, and the two jaws are exposed from one side of the main body; When the driving shaft rotates in one direction, it drives the two sliders to move toward each other synchronously; when the driving shaft rotates in another direction, it drives the two sliders to move in the opposite direction synchronously; the two jaws move along with the two sliders respectively.

2. The chain removal tool according to claim 1, characterized in that: A first threaded portion and a second threaded portion are arranged on the shaft body of the driving shaft, and the two threaded portions are opposite threads; the driving shaft is pivoted in the slideway; the two sliding blocks are respectively provided with a first screw hole and a second screw hole, and the two screw holes have opposite threads; the two sliding blocks are respectively screwed to the first threaded portion and the second threaded portion of the driving shaft through the first screw hole and the second screw hole.

3. The chain removal tool according to claim 2, characterized in that: Two end plugs are respectively arranged at two ends of the slideway; and two ends of the driving shaft are respectively pivotally arranged in the two end plugs.

4. The chain removal tool according to claim 1, characterized in that: At least one first embedding portion is axially arranged on the circumference of the slideway; the circumferences of the two sliders are each provided with at least one second embedding portion, and the second embedding portions of the two sliders are embedded in the first embedding portion of the slideway.

5. The chain removal tool according to claim 2, characterized in that: The shaft of the driving shaft has a central portion located between the first and second threaded portions; in the slideway, two ends of the driving shaft and the central portion are supported.

6. A chain disassembly assembly, characterized in that: Contains: A chain removal tool as claimed in any one of claims 1 to 5; A seat, a recess and a stop are provided on the main body; a push pin screw hole passes through the seat and communicates with the recess; a recess is provided in the stop, one end of the recess is communicated with the recess, and the recess is aligned with the axial direction of the push pin screw hole; A push pin has a screw portion, a head portion and a pin portion, which are respectively arranged at the two ends of the screw portion. The push pin is screwed to the push pin screw hole of the seat portion through the screw portion, and the pin portion faces the recessed chamber and the support seat; when the push pin rotates, it moves into or out of the recessed chamber.

7. The chain disassembly assembly according to claim 6, characterized in that: The main body is provided with a combining portion.

8. The chain disassembly assembly according to claim 6, characterized in that: The head is formed with a pivoting portion.

9. The chain disassembly assembly according to claim 6, characterized in that: The circumference of the main body has a first side and a second side different from the first side; the two jaws are exposed on the first side; the seat, the recess and the abutment are arranged on the second side of the main body; the axial direction of the ejector screw hole is parallel to the axial direction of the slideway.

Images