CN1709649A

CN1709649A - Chain breakage device with a shell as handle

Info

Publication number: CN1709649A
Application number: CN 200510026430
Authority: CN
Inventors: 江威
Original assignee: Giant China Co Ltd
Current assignee: Giant China Co Ltd
Priority date: 2005-06-03
Filing date: 2005-06-03
Publication date: 2005-12-21

Abstract

A kind of sever-chin device which can be used as the crust of knob can fulfill the movement of a pin between two chin-boards. It comprises a base, a push part screwed set inside the base and a crust which can wrap the base and the part. The base has a quad set on the peripheral, the curst has a wall which can borderline a container and a joint part set around the outside of the wall, the part is a complement to the quad and can be nested connected to the base, make the curst contains the base, the push part and also has the character of connecting to the base to has the function of the knob.

Description

Specification has can be as the China breakage device of shell outside the handle

Technical field

The invention relates to a kind of accessory of bicycle, be meant a kind of China breakage device that to treat as shell outside the handle that has especially.

Background technology

The bicycle that generally has speed changing function is to utilize operation one variable-speed unit to close with the chain drum Nie in different circles footpath to stir chain, and reaches the speed change purpose.And using a period of time or improper, be easy to cause the carrier bar generation distortion of this chain even damage, and when carrier bar distortion, damage, will cause variable speed operation to have some setbacks, also be easy to make chain to derail because of variable speed operation.

With regard to regard to the rider of contest or sparetime, when the carrier bar of chain had distortion, damage, it was necessary repairing chain immediately, and therefore, the general higher bicycle of progression all can dispose a China breakage device.

As shown in Figure 1, existing a kind of China breakage device includes a dozen chain seats 1, one and is arranged in pushing away of this dozen chain seat 1 inside part 2, of pulling and is articulated in this and pushes away adapter 3, on the part 2 of pulling and be hubbed on the cylinder 5 that holding rod 4 and on this adapter 3 is installed in this dozen chain seat 1 bottom.This dozen chain seat 1 has a dented space 102 and that is arranged with in this location division 101 1 sides for this location division 101, one that pushes away the part 2 spiral shells setting position of pulling and is convexly equipped with in this dented space 102 and the fastening part 103 that supplies chain to bridge and locate.When bridging, chain is positioned on this fastening part 103, and the pin rod that makes chain pushes away when pulling part 2 corresponding to this, the user with wherein one hold and be held on this cylinder 5, push away the part 2 of pulling with moving this of another hand operated spiral shell again, pin rod is broken away from the carrier bar of chain, or pin rod is located between the carrier bar of chain, repair the chain purpose and reach.

Though this China breakage device has the function of repairing chain, and utilize this holding rod 4 and cylinder 5 to produce folding, can reach the purpose of reduced volume with respect to this dozen chain seat 1.But the taking in property after the whole folding of this China breakage device and the polarization of member are not good, and for example, this holding rod 4 is easy to be subjected to foreign object to stir and drives this adapter 3 and outward winding with respect to pushing away the part 2 of pulling.And in order to make this cylinder 5 produce the function of handles, the member of this cylinder 5 and this dozen chain seat 1 junction is many, complexity, cost are also higher for structure, and the function that provides as handle also only is provided this cylinder 1, does not have other additional function.

The patent of invention content

Therefore, the present invention's purpose, promptly provide a kind of utilize the set room of an enclosure take in a pedestal and push away pull part and utilize this shell be located at one of the linking part of periphery and this pedestal embedding part link can be used as having of handle function can be as the China breakage device of shell outside the handle

So, the present invention has can be as the China breakage device of shell outside the handle, be to push between two groups of carrier bars for operation one of one chain pin rod, this China breakage device comprises a pedestal, and is arranged in pushing away of this pedestal inside part and of pulling and can takes in this pedestal and push away the shell of the part of pulling.This pedestal has one along location division that an axis extend to be provided with, one be arranged on the embedding part that fastening part and that the dented space and of this location division one side is convexly equipped with by one of this dented space bottom surface is located at periphery along this axis, this location division has a screw that extends along this axis, and this fastening part is for this chain location that bridges.This pushes away the part of pulling is to be arranged in the screw of this pedestal, and has a pair of stopper end and that should fastening part and be the operative end of opposite setting with this stopper end.This shell has the linking part that a perisporium and that can define a room is arranged on this perisporium periphery, and spiral shell is provided with this pedestal that pushes away the part of pulling and can be accommodated in this room, and this linking part is that embedding part with this pedestal is concavo-convex complementation, and can nested against one anotherly link.

By this, shell is to utilize this linking part nested with the embedding part of this pedestal outside the present invention, can more can take in this pedestal for outside the handle function of grippings, pushes away member such as the part of pulling and produce, and integrated member relatively is not easy loss.

Description of drawings

About addressing other technologies content, characteristics and effect before the patent of the present invention, in the following detailed description that cooperates with reference to one of a graphic preferred embodiment, can clearly present.

Fig. 1 is the combined planar schematic diagram of existing a kind of China breakage device;

Fig. 2 is a three-dimensional exploded view, illustrates that the present invention has the preferred embodiment that can treat as the China breakage device of shell outside the handle;

Fig. 3 is one of the above-mentioned preferred embodiment of a present invention three-dimensional combination figure, the interlocking of a shell and a pedestal is described and produce can be for the handle function of gripping;

Fig. 4 is the profile along the line 4-4 among Fig. 3:

Fig. 5 is one of the above-mentioned preferred embodiment of a present invention three-dimensional combination figure, illustrates that this pedestal, pushes away pull part and a lid and all is accommodated in this enclosure; And

Fig. 6 is that flat assembly drawing is taken in one of above-mentioned preferred embodiment of the present invention.

The specific embodiment

As shown in Figure 2, the present invention has can be as China breakage device 100 preferred embodiments of shell outside the handle, be to push between two groups of carrier bars 220 for operation one of one chain 200 pin rod 210, this China breakage device 100 comprises a pedestal 10, and is arranged in pushing away of these pedestal 10 inside part 20, of pulling and is hubbed on the shell 40 that cover plate 30 and on this pedestal 10 can be taken in this pedestal 10, push away pull part 20 and cover plate 30.

This pedestal 10 is to make rectangular block shape, and have a first end 11, one with this first end 11 be opposite setting the second end 12, a pair of should first end 11 and the location division 13 of extending along an axis L, a pair of should the second end 12 and and the pin plate portion 14, that is oppositely arranged of this location division 13 be arranged on fastening part 16 and that the dented space 15 and between this pin plate portion 14 and this location division 13 is convexly equipped with by one of this dented space 15 bottom surface and be arranged on corresponding to the second end 12 and the embedding part 17 that be arranged in parallel with this axis L.This location division 13 has a screw 131 that is provided with along this axis L, and this pivot connecting plate 14 has a pair of perforation 141 that should axis L, and this fastening part 16 is for this chain 200 location that bridges.This embedding part 17 is to make inner width, outer narrow groove shape, and has one and be the wide position 171 that lacks the circle shape and a corresponding opening part and the width narrow position 172 less than this wide position 161.

This pushes away the part 20 of pulling has a mobile jib 21 that extends along this axis L and and is the action bars 22 of T font with these mobile jib 21 bindings.This mobile jib 21 is to be arranged in the screw 131 of this pedestal 10, and have a pair of stopper end 211 and that should fastening part 16 and be the operative end 212 of opposite setting with this stopper end 211, this operative end 212 has a perforation 213 perpendicular to this axis L, this action bars 22 is to be removably to be located in this perforation 213, and has a round bar portion 221, one be located at this round bar portion 221 wherein an end and circle footpath greater than the expansion section 222 of this round bar portion 221, one is located at the spring steel ball group 223 of these round bar portion 221 the other end, and the circle footpath of this round bar portion 221 is to wide position 171 that should embedding part 17.

This cover plate 30 is to make to engrave empty frame shape, and has a pivot joint end 31 that is articulated in pin plate plate 14 tops of this pedestal 10, and be the swing end 32 of opposite setting with this pivot joint end 31.This swing end 32 can be by the detent position of a closing on this location division 13, is operable to an enable possition that is away from this location division 13.

This shell 40 is to make the rectangle shelly, has the linking part 43 that a perisporium 42 and that can define a room 41 outwards is convexly equipped with by these perisporium 42 corners.This perisporium 42 have a base plate 421, two by these base plate 421 2 relative sides extend upward the narrow side portion that forms 422, two by this base plate 421 in addition two relative sides extend upward and be attached at the circular hole 424 that wide side plate 423 and two between these narrow side portions 422 relatively is located in these narrow side portions 422 and is penetration state.This linking part 43 is that the embedding part 17 with this pedestal 10 is concavo-convex complementation, and be to make identical and be outer big, interior little abaculus shape with the cross section of this embedding part 17, and have one be lack circular large-diameter portion position 431 and one between this large-diameter portion position 431 and this perisporium 42 width less than the neck 432 of this large-diameter portion position 431.

As shown in Figure 3, Figure 4, be to show that this China breakage device is normal use and can operates the state of chain, at this moment, this action bars 22 is to be located in the perforation 213 of this mobile jib 21, and utilization is positioned at the expansion section 222 and the spring steel ball group 223 of two ends, can prevent that this action bars 22 from arbitrarily dropping out in 213 from boring a hole, and this shell 40 is to utilize this linking part 43 to be nested in the embedding part 17 of this pedestal 10, and can produces the handle function of use of a hand gripping wherein for the user.And when the swing end 32 of this cover plate 30 is operable to the enable possition by detent position, just can insert in this dented space 15 with chain (figure do not show) and locator card on this fastening part 16, and after this cover plate 30 covered back detent position, just can the another hand-drive this push away the action bars 22 of the part 20 of pulling and make this mobile jib 21 do the spiral shell precession and do along this axis L, and can reach purpose to chain operation.

After finishing using, the user can push the spring steel ball group 223 of this action bars 22, and this action bars 22 can successfully be shifted out in the perforation 213 of this mobile jib 21, and the linking part 43 of this shell 40 is shifted out in the embedding part 17 of this pedestal 10, again this mobile jib 21 is screwed in towards these pedestal 10 inside a little, protrude from the length of these pedestal 10 outsides with shortening.And as Fig. 5 and shown in Figure 6, the pedestal 10 that will be combined into one, mobile jib 21, cover plate 30 grades are inserted in the room 41 of this shell 40, and make this embedding part 17 be symmetrical in these circular holes 424, and be provided with one of spring steel ball group 223 end and penetrate by a circular hole 424 wherein with being about to this action bars 22, up to this spring steel ball group 223 when another circular hole 424 protrudes, utilization is positioned at the expansion section 222 of these action bars 22 2 ends, spring steel ball group 223 is an outside at these circular holes 424 respectively, this action bars 22 is positioned in this shell 40, simultaneously, utilize this action bars 22 also to pass in the embedding part 17 of this pedestal 10, can make this pedestal 10 produce positioning action, and can be with easily in this room 41, not dropping out, and has preferable polarization.

Therefore, shell 40 outside the present invention, nested except utilizing this linking part 43 with the embedding part 17 of this pedestal 10, can be and produce for outside the handle function of gripping, more can be under this shell 40 and pedestal 10 separated attitudes, can be with the pedestal 10 that is combined into one, mobile jib 21, cover plate 30 members such as grade are accommodated in the room 41 of this shell 40, especially bad, utilize this action bars 22 that pushes away the part 20 of pulling to be located in the circular hole 424 of this shell 40, more can make this action bars 22 and this embedding part 17 produce fit, that is, when this action bars 22 is located in this shell 40, this action bars 22 also produces the interlocking effect with pedestal 10, impels this pedestal 10 to have preferable binding polarization with this shell 40, and integrated member relatively is not easy to lose.

The above person of thought, only for the present invention's preferred embodiment, when the scope that can not limit the invention process with this, promptly the simple equivalent of being done according to the present patent application claim and invention description content generally changes and modifies, and all still belongs in the scope that patent of the present invention contains.

Claims

1. one kind has and can it is characterized in that as the China breakage device of shell outside the handle, pushes between two groups of carrier bars for one of operation one chain pin rod, and this China breakage device comprises:

One pedestal, have one along location division that an axis extend to be provided with, one be arranged on the embedding part that fastening part and that the dented space and of this location division one side is convexly equipped with by one of this dented space bottom surface is located at periphery along this axis, this location division has a screw that extends along this axis, and this fastening part is for this chain location that bridges;

One pushes away the part of pulling, and is to be arranged in the screw of this pedestal, and has a pair of stopper end and that should fastening part and be the operative end of opposite setting with this stopper end; And

One shell has the linking part that a perisporium and that can define a room is arranged on this perisporium periphery, and spiral shell is provided with this pedestal that pushes away the part of pulling and can be accommodated in this room, and this linking part is that embedding part with this pedestal is concavo-convex complementation, and can nested against one anotherly link.

According to claim 1 described have can be as the China breakage device of shell outside the handle, it is characterized by, the embedding part of this pedestal is arranged on the bottom corresponding to the second end, and be to make inner width, outer narrow groove shape, the linking part of this shell is outwards to be convexly equipped with by this perisporium, and is to make identical with the cross section of this embedding part and be outer big, interior little abaculus shape.

According to claim 2 described have can be as the China breakage device of shell outside the handle, it is characterized by, the embedding part of this pedestal is to be arranged in parallel with this axis, and have one and be the wide position that lacks the circle shape and a corresponding opening part and width narrow position less than this wide position, this shell is to make the rectangle shelly, and this linking part is arranged on the corner of this perisporium, and have one be lack circular large-diameter portion position and one between this large-diameter portion position and this perisporium width less than the neck of this large-diameter portion position.

According to claim 3 described have can be as the China breakage device of shell outside the handle, it is characterized by, this shell has the two corresponding circular holes that are provided with and run through this perisporium, and this pushes away the part of pulling and has more a mobile jib and that extends along this axis and be and removably link the action bars that is the T font with this mobile jib, this mobile jib is that system is arranged in the screw of this pedestal, and have should braking end portion and this operative end, this action bars has the expansion section of an end located therein, one is located at the spring steel ball group of the other end, this action bars is can be located on this operative end, or pushes this spring steel ball group and can separate and be located in these circular holes on this operative end and be contained in the embedding part of this pedestal.