TWM536595U - Chain disassembling tool - Google Patents

Description

Chain removal tool

This creation is related to the structure of the hand tool for disassembling the chain, especially a chain removal tool that is easy to carry and easy to use.

According to the chain, the chain is a common transmission tool in the machine, which can be driven between the shaft and the shaft through the connection of the chain. In the bicycle field, the chain is sleeved on the axle of the axle and the crankshaft of the crank, and when the crank drives the axle to rotate due to the pedaling action, the axle can be rotated by the chain transmission, so that the wheel of the bicycle is Driving on the road.

Moreover, the chain traditionally used for bicycles is composed of a plurality of chain links which are assembled by pins. If it is to be disassembled for maintenance or cleaning, the pins must be detached from the two links by a special tool, but the conventional chain It is not easy to disassemble, so there are improved links that can be quickly disassembled.

As shown in Fig. 8, the link that can be quickly disassembled and used is mainly provided at the two ends of the chain 9 with two outer chain plates 91 on the two sides of the symmetry, and each outer chain plate 91 has a pin respectively. The member 92 has a through hole 93, and the through hole 93 has a large diameter section 931 and a small diameter section 932.

When the two ends of the chain 9 are assembled by the two outer chain plates 91, the pin members 92 of the outer chain plates 91 are placed in the large diameter segments 931 of the through holes 93 of the other outer chain plates 91, and then force is applied to make the links on both sides. The rollers 95 are separated from each other, so that the pin member 92 is moved from the large diameter section 931 to the small diameter section 932 and fixed, and the fastening of the two ends of the chain 9 is completed.

On the other hand, when the two ends of the chain 9 are to be detached, as shown in FIG. 9, the clamp 95 is reversely pressed against the rollers 95 on both sides of the outer chain plate 91, and When the forceps 96 is pulled out and the rollers 95 of the two side links are brought close to each other, and the pin member 92 is moved from the small diameter section 932 to the large diameter section 931, the pin member 92 can be withdrawn from the large diameter section 931 to Complete the disassembly work at both ends of the chain 9.

However, in the case of riding a bicycle, the rider is hoping to reduce the load when riding, and it is not possible to carry too much or a large tool on the body. Therefore, the inventor of this case has A problem is proposed to improve the program, which is the new type of "chain tool" patent of 104204437, and the chain tool provided by the patent is composed of two plate-shaped rods that are pivotally connected together, and each The plate-shaped bars respectively have a first end and a second end opposite to the first end, and at the first end are provided with a hook portion for inserting into a chain link, and at the first end An opening is formed between the second end and the second end, and the opening is mutually engageable with the opening of the other plate-shaped member, so that the plate-shaped member and the other plate-shaped member can be interlocked with each other as an axis. Pivot, and then the disassembly work can be disassembled. However, although the pre-existing patent case is indeed light and easy to carry, in practical use, since the two-plate type members are fastened to each other only by the openings of the two, the openings of the two-plate type members are It does not have any structural design for positioning, so there is a problem that the two-plate type members are easily separated and detached from each other after being assembled and fastened to each other, which is unfavorable for the one-hand operation of the user.

In view of this, the inventor of this case is in the spirit of excellence, after continuous hard work and trials, finally the creation of this creation.

The main purpose of the present invention is to provide a chain removal tool that is easy to carry and easy to use by one hand.

For the purpose of the foregoing, the present invention provides a chain detaching tool having two rods that can be pivotally connected together, wherein each of the rods includes a first end and a first and a first a second end opposite to the end, the first end is provided with a hook portion for inserting into a chain link, and an opening is formed on one of the first side edges of the two rod members, the opening is available for another The openings of one of the rods are fastened to each other such that one of the rod members and the other of the rod members are pivotally pivoted relative to each other; wherein the two rod members are respectively opposite to the first side of the first side a groove corresponding to the opening is disposed on the two side recesses, and a guiding groove connecting the opening and the groove is laterally recessed between the opening and the groove, and the depth of the groove is Slightly larger than the depth of the guiding groove, and a rib is disposed on the first side of the two rods, and the rib extends along the first side thereof and protrudes toward the opening to form a protrusion, and When one of the rods and the other of the rods are respectively fastened to each other by their openings, the two rods The protrusions of the pieces can be respectively snapped into the grooves of the other rod along the guide grooves of the other rod.

Preferably, the hook portion is bent toward one side to form an actuating surface that can abut against the link, and each of the rods is provided with two parallel spaced grooves at the first end thereof. The hook portion is formed between the two grooves, and an auxiliary hook portion bent in the same direction as the hook portion is formed on both sides of the hook portion.

Preferably, the distance from the first side to the second side is defined as the width of the rod, and the opening width of the opening is about one-half of the width.

Preferably, the first ends of the two rods are respectively formed with a first oblique guiding surface on a side end surface adjacent to the opening thereof, and the second ends of the two rod members are respectively formed on the opposite end surfaces adjacent to the opening thereof. There is a second oblique guiding surface, and the first inclined guiding surface and the second inclined guiding surface extend in the same oblique direction.

Preferably, the second ends of the two rods respectively form a spoon-shaped scooping portion at the extending end thereof.

Preferably, the extending direction of the second end of each of the rods is a horizontal reference plane, and the extending direction of the first end thereof is inclined downward with respect to the second end to have an angle.

The above objects and advantages of the present invention are not difficult to understand from the detailed description of the selected embodiments and the accompanying drawings.

Referring first to FIGS. 1 to 3, a chain removal tool 10 is provided for the present invention, which is mainly composed of two rod members 11 which can be pivotally connected to each other in a rapid manner, wherein:

The two rods 11 are in the form of a plate, and each of the rods 11 includes a first end 12 and a second end 13 opposite to the first end 12, and a first end 12 is provided on the first end 12. The hook portion 14 is inserted into a chain link (not shown), and the hook portion 14 is bent toward one side to form an actuating surface 141 which can abut against the roller in the chain link. In this embodiment, each of the rods 11 is preferably provided with two parallel spaced grooves 15 at the first end 12 thereof, such that the hook portion 14 is formed between the two grooves 15 . An auxiliary hook portion 16 bent in the same direction as the hook portion 14 is formed on each side of the hook portion 14 .

And an opening 17 is defined in each of the first side edges 111 of each of the rods 11, and the opening 17 is connected to the outside to be fastened to the opening 17 of the other rod member 11, so that one of the rod members 11 and The other rod members 11 can be pivoted relative to each other in a crosswise manner, and the two rod members 11 are respectively recessed and disposed on the second side 112 of the first side edge 111 opposite to the opening. 17 is a groove 18 disposed at a relatively spaced interval, and a guiding groove 19 communicating with the opening 17 and the groove 18 is laterally recessed between the opening 17 and the groove 18, wherein the guiding groove 19 and the groove 18 is perpendicularly intersecting, and the depth h1 of the groove 18 is slightly larger than the depth h2 of the guide groove 19, and a rib 21 is respectively disposed on the first side 111 of the two rod members 11, and the rib 21 is along the rib 21 The first side edge 111 extends and protrudes toward the opening 17 thereof. A protrusion 22 is protruded from the opening 17 and the length of the protrusion 22 is equal to the depth h1 of the groove 18, and one of the protrusions 22 is formed. When the member 11 and the other member 11 are respectively fastened to each other with their openings 17, the protruding portions 22 of the two members 11 can be respectively buckled to the other member along the guiding groove 19 of the other member 11. 11 in the groove 18.

In the present embodiment, as shown in FIG. 2, the distance from the first side 111 to the second side 112 is defined as the width D of the rod 11, and the opening width D1 of the opening 17 is defined. The first end 12 of the two rods 11 is respectively formed with a first oblique guiding surface 121 on the side end surface adjacent to the opening 17 thereof, and the second inclined portion 121 is formed on the side end surface of the first rod 12 adjacent to the opening 17 thereof. A second inclined end surface 131 is formed on the opposite end surface of the second end 13 of the rod member 11 adjacent to the opening 17 thereof. The first oblique guiding surface 121 and the second oblique guiding surface 131 extend in the same oblique direction. And a scoop-shaped scooping portion 132 is formed at an extending end of the second end 13 of the two rods 11, respectively, and thereby the scooping portion formed by the second end 13 of each rod member 11 is formed. 132 can be used as a bicycle digging rod, and when the rod 11 is used as a digging rod, the opening 17 can be snapped and positioned on a rim strip (not shown), and the An oblique guide surface 121 and a second Guide surface 131 is more available to the rim should be relatively spoke against.

Then, referring to FIG. 3, the extending direction of the second end 13 of the rod member 11 is a horizontal reference plane L, and the extending direction of the first end 12 is inclined downward relative to the second end 13 to have a In the present embodiment, the angle θ is about 8 degrees, and thus the two rod members 11 can be fastened to each other with the opening 17 thereof, so that the second end 13 of the two rod members 11 can be And the opening angle between the first ends 12 of the two rods 11 is more suitable for the user to use and operate with one hand.

When the chain removal tool provided by the present invention is actually assembled, as shown in FIGS. 4 and 5, the two rod members 11 are first fastened to each other by the opening 17 to the opening 17, and the two rods are fastened together. The protrusions 22 of the piece 11 are respectively slid along the guide groove 19 of the other rod 11 into the groove 18 of the other rod member 11, and then the two rod members 11 can be made to protrude by their own weight. 22 can be relatively buckled to the groove 18 of the other rod member 11, that is, after the protrusion 22 of the rod member 11 is slid to the groove 18 of the other rod member 11, the rod member 11 is Falling down into the groove 18 of the other rod 11 by its own weight, the protrusion 22 can be blocked by the inner wall of the groove 18 to block its lateral displacement action, and thereby complete the The assembly of the two rods is such that the rod member 11 and the other rod member 11 can be pivoted relative to each other at a position where the shaft member 11 is fastened to each other, and after the assembly of the two rod members 11 is completed, the rod member 11 is protruded. The snap relationship between the 22 and the groove 18 of the other member 11 is even more The effect of the mutual interference positioning between the two rod members 11 ensures that the two rod members 11 can have the effect of being difficult to separate and fall off during operation, which is beneficial to the user's one-hand operation and greatly Increase the practicality of the creative chain removal tool 10.

When the original composition of the above structure is used to actually disassemble the link, as shown in FIGS. 6 and 7, when both ends of a chain 30 are fastened by a link 31 which can be quickly disassembled, this If the link 31 is to be disassembled, only the hooks 14 of the two rods 11 that are snapped together and pivoted together are placed in the links 21 of the chain 20 and are respectively positioned on the two rollers 32. The outer side of the second rod member 11 is then biased against the second end 13 of the second rod member 11, and the actuating surface 141 of the first end portion 12 of the second rod member 11 is pivoted. The abutment drives the two rollers 32 to be displaced in a relatively close direction, so that the work of disassembling the links 21 can be successfully completed.

Through the above description, it is not difficult to find that the present invention only needs to be pivotally connected to each other by the plate-shaped rods 11, and then the chain removal tool 10 for disassembling the links can be formed, and the two can be used when not in use. The rods 11 are stored in a stacked manner, so that the chain removal tool 10 of the present invention has the advantages of not occupying space and being convenient to carry, compared with the conventionally used clamp for disassembling the chain links. The creation of the chain detaching tool 10 composed of the two rod members 11 further has the function of interfering with each other between the two rod members 11, thereby ensuring that the two rod members 11 are in operation and use. The two rod members 11 have the effect of being difficult to separate and fall off from each other, and are advantageous for the single-handed operation of the user, so that the chain removal tool 10 provided by the present invention has excellent practicability.

However, the above description of the embodiments is merely illustrative of the present invention and is not intended to limit the present invention. Therefore, the replacement of equivalent elements should still be within the scope of the present invention.

To sum up, it is possible for the person skilled in the art to understand that the creation can achieve the aforementioned objectives, and it has already complied with the provisions of the Patent Law, so the application is made according to law.

(customized part)
9‧‧‧Chain 91‧‧‧External chain plate 92‧‧‧Spinning 93‧‧‧Perforation 931‧‧‧ Large-diameter section 932‧‧‧ Small-diameter section 95‧‧‧Roller 96‧‧‧ clamps ( Part of this creation)
10‧‧‧Chain dismantling tools 11‧‧‧ rods 111‧‧‧ First side 112‧‧‧Second side 12‧‧‧ First end 121‧‧‧ First oblique guide 13‧‧‧ Second end 131‧‧‧Second oblique guide 132‧‧‧Shovel part 14‧‧‧Hook part 141‧‧‧Activity surface 15‧‧‧ Groove 16‧‧‧Auxiliary hook 17‧‧‧ Opening 18‧ ‧ ‧ Groove 19 ‧ ‧ Guide trough 21 ‧ ‧ rib 22 ‧ ‧ protrusion h1, h2 ‧ ‧ depth D, D1 ‧ ‧ width L ‧ ‧ horizontal datum θ ‧ ‧ angle 30 ‧ ‧ ‧ chain 31‧‧‧ link 32‧‧ ‧roller

The first picture is a three-dimensional exploded view of the creation. Figure 2 is a top view of the creation of the rod. Figure 3 is a side view of the creation of the rod. Figure 4 is a schematic view of the assembly of the present invention for showing the state of the projection as it slides along the guide groove. Figure 5 is a schematic view of the structure after assembly of the present invention, showing the state when the protrusion is snapped into the groove. Figure 6 is a schematic diagram of the state of use of the creation and disassembly link. Figure 7 is a schematic diagram of the creation of the disassembly chain. Figure 8 is a schematic view of the assembly of the quick-disconnectable link. Figure 9 is a schematic view showing the state of use of the detachment link of the tongs.

10‧‧‧Chain removal tool

111‧‧‧First side

12‧‧‧ first end

13‧‧‧ second end

132‧‧‧digger

141‧‧‧ actuation surface

16‧‧‧Auxiliary hook

18‧‧‧ Groove

21‧‧‧ rib

11‧‧‧ rods

112‧‧‧Second side

121‧‧‧First oblique guide

131‧‧‧Second oblique guide

14‧‧‧Hook

15‧‧‧ trench

17‧‧‧ openings

19‧‧‧ Guide slot

22‧‧‧Protruding

Claims (6)

A chain removal tool having two rods that are pivotally coupled together, wherein each of the rods includes a first end and a second end opposite the first end, the One end is provided with a hook portion for inserting into a chain link, and an opening is formed on one of the first side edges of the two rod members, the opening being detachable from the opening of the other rod member Having one of the rod members and the other of the rod members being pivoted relative to each other as a shaft; wherein: the two rod members are respectively recessed on the second side opposite one of the first side edges The opening is disposed at a relatively spaced groove, and a guiding groove connecting the opening and the groove is laterally recessed between the opening and the groove, and the depth of the groove is slightly larger than the depth of the guiding groove, and A rib is disposed on the first side of the two rods, and the rib extends along the first side thereof and protrudes toward the opening to form a protrusion, and one of the rods and the other rod When the pieces are respectively fastened to each other by their openings, the protruding parts of the two rods can be respectively along the other The guide groove of one rod is relatively buckled in the groove of the other rod. The chain detaching tool of claim 1, wherein the hook portion is bent toward one side to form an actuating surface that can abut against the link, and each of the rods is respectively open at the first end thereof. The two parallel spaced grooves are formed between the two grooves, and an auxiliary hook portion bent in the same direction as the hook portion is formed on both sides of the hook portion. The chain removing tool of claim 1, wherein the distance from the first side to the second side is defined as the width of the rod, and the opening width of the opening is about one-half of the width. The chain removing tool of claim 1, wherein the first end of the two rods is respectively formed with a first oblique guiding surface on a side end surface adjacent to the opening thereof, and the second ends of the two rod members are respectively A second oblique guiding surface is formed on the opposite end surface of the opening, and the first inclined guiding surface and the second inclined guiding surface extend in the same oblique direction. The chain removing tool according to claim 1, wherein the second ends of the two rods respectively form a spoon-shaped scooping portion at an extending end thereof. The chain removing tool of claim 1, wherein the extending direction of the second end of each of the rods is a horizontal reference plane, and the extending direction of the first end is inclined downwardly relative to the second end to have a Angle.