CN206513767U - Chain and its inner chain sheet - Google Patents

Abstract

A kind of chain and its inner chain sheet, the inner chain sheet can define an engaging space jointly by relative chain piece with one, and comprising two along a spaced group connecting part of longitudinal centre line, and the connecting portion of a connection group connecting part, each group connecting part has a joining hole, the connecting portion has a direction toward the remote engaging space recessed and has the groove of the trough rim of two parallel intervals, the face chain includes several inner chain sheets, several outer chain sheets, and several chain rivets for concatenating the inner chain sheet and the outer chain sheet and there is a central axis respectively, all there is an axial line distance between two adjacent central axis, the ratio of one overall width of the axial line distance and the chain is 2.39 ± 0.12.The chain is thereby allowed to be more suitable for using in the higher field of variable hop count, while improving speed change smoothness.

Description

Chain and its inner chain sheet

Technical field

The utility model is, on a kind of chain, to particularly relate to a kind of chain for being adapted to be used on speed change field, and The inner chain sheet of the chain.

Background technology

The chain being made up of inner chain sheet, outer chain sheet, chain rivet and chain roller etc. part, often coordinates into action edge with sprocket wheel Transmission, when the chain is used on the bicycle with speed changing function, because the chain must be in different several of diameter Changed between sprocket wheel, therefore, it is necessary to which the structure of speed changing function can be improved by being set on chain.

Wherein, Taiwan has announced I500555 patents of invention and discloses a kind of inner chain link piece for bicycle chain, should Inner chain link piece has two ends part, and a connection end part coupling part, in the coupling part towards another The inner side of individual relative chain piece has a recess, and this recess has two arc sides for being respectively adjacent to the end part.Aforementioned invention Although patent can because of setting the recess in the coupling part, and expand the inner side of inner chain link piece chain piece relative with this away from From to improve the smoothness of speed change, but the arc side of the recess can increase degree of difficulty of the inner chain link piece in de- withdrawing pattern.

In addition, M338930 new patents have been announced in Taiwan discloses a kind of chain for being adapted to use on multi-speed bicycle Bar, the chain has several inner chain sheets being oppositely arranged two-by-two, several outer chain sheets being oppositely arranged two-by-two, and several concatenation phases The stage casing of the adjacent inner chain sheet and the chain rivet of the outer chain sheet, each inner chain sheet and each outer chain sheet is designed with one and oblique cut Enter portion, the oblique switch-in part of the corresponding inner chain sheet is tilted in opposite direction, and the corresponding outer chain sheet is oblique It is also to be tilted in opposite direction to switch-in part, using setting described oblique incision respectively in each inner chain sheet and each outer chain sheet Portion, can improve smoothness of the chain in speed change.

Foregoing new patent sets that asymmetrical this is oblique respectively on the corresponding inner chain sheet and the outer chain sheet Switch-in part, although can improve smoothness of the chain in speed change, but the card formed between the relative inner chain sheet Close space increase limited, therefore when the chain is carrying out speed change, each latch of the sprocket wheel is still less susceptible to be caught in corresponding The engaging space, therefore foregoing new patent is in addition to gear ratio relatively has some setbacks, also than less suitable for being used in variable hop count more High field.

And Taiwan has announced M287192 new patents and discloses a kind of speed varying chain that can be changed between several sprocket wheels Bar, the speed-changing chain equally includes outer chain sheet, inner chain sheet, and chain rivet, and each outer chain sheet has a protuberance, and this is convex Go out portion positioned at the chain engage with the sprocket wheel when the non-side contacted with the sprocket wheel bottom.The advantage of this structure is to increase Plus the thickness of the outer chain sheet, you can avoid the chain in speed change and adjacent sprocket wheel collision, generation noise.It is such a Although the chain known has the advantages that the above, the protuberance on each outer chain sheet is located at, and relative set can not be increased Width between the inner chain sheet put, therefore, the chain are also not suitable for being used in the higher occasion of variable-ratio hop count.

The content of the invention

The purpose of this utility model is to provide a kind of chain at least one shortcoming that can overcome prior art, and The inner chain sheet of the chain.

Inner chain sheet of the present utility model can define an engaging space jointly by relative chain piece with one, and the inner chain sheet is included Two connecting portions along a spaced group connecting part of longitudinal centre line, and a connection group connecting part, each group Socket part all has a joining hole, and the connecting portion has one toward the recessed groove in the direction away from the engaging space, and this is recessed Groove has the trough rim of two parallel intervals.

Further, the trough rim is perpendicular to the longitudinal centre line.

Further, this has one toward the recessed confronting grooves in the direction away from the engaging space with respect to chain piece, and this is relative Groove has the relative trough rim of two parallel intervals, and the trough rim favours the longitudinal centre line, the trough rim of the inner chain sheet The relative trough rim incline direction of chain piece relative with this is consistent.

Further, the groove crosses over the longitudinal centre line.

Further, the groove have two be located at the opposite side of the longitudinal centre line inclined planes, each inclined plane be by The longitudinal centre line is gradually tilted toward the outer peripheral edge of the inner chain sheet.

Further, each group connecting part has an outer ring surface away from this with respect to chain piece, and the connecting portion has a company Connect the outer joint face of the outer ring surface, the outer joint face and the outer ring surface be flush it is in the same plane.

Further, each group connecting part has an outer ring surface away from this with respect to chain piece, and the connecting portion has a company Connect the outer joint face of the outer ring surface, the outer joint face and the outer ring surface are non-in the same plane, and the outer joint face compared with The outer ring surface is protruding outside toward the remote engaging space.

Further, also surrounded comprising one and be connected to the group connecting part and the Xie Dao areas of the outer peripheral edge of the connecting portion, should Xie Dao areas are extended between the group connecting part along the outer peripheral edge, and are gradually tilted from the longitudinal centre line toward the outer peripheral edge.

Further, each group connecting part also have one toward the engaging space protrude protruded stigma, and the joining hole through should The protruded stigma.

Chain of the present utility model can in a chain wheel set speed change, the chain wheel set has 12 coaxial sprocket wheels, often Individual sprocket wheel all have it is several surround the latches that pivot is set, and the chain includes several described inner chain sheets, several Outer chain sheet, and the adjoining inner chain sheet of several concatenations and the outer chain sheet chain rivet, each chain rivet has in one Heart axis, all has axial line distance two-by-two between the central axis of the adjacent chain rivet, the axial line distance with it is every Distance on individual sprocket wheel between the adjacent latch is engaged；And each axial line distance of the chain and a beam overall of the chain The ratio of degree is 2.39 ± 0.12.

Further, each group connecting part has the outer ring surface of a neighbouring outer chain sheet, and the connecting portion has a connection The outer joint face of the outer ring surface, the outer joint face and the outer ring surface be flush it is in the same plane.

Further, each group connecting part has the outer ring surface of a neighbouring outer chain sheet, and the connecting portion has a connection The outer joint face of the outer ring surface, the outer joint face and the outer ring surface are non-in the same plane, and the outer joint face is compared with institute Outer ring surface is stated toward protruding outside, aforementioned axis distance and a maximum of the corresponding inner chain sheet away from the engaging space The ratio of outer width is 2.39 ± 0.12.

Further, the ratio that aforementioned axis distance engages a maximum internal width degree in space with this is 5.5 ± 0.12.This reality It is with effect of new beneficial：Expanded by the groove of the inner chain sheet on the width in the engaging space, and the groove The trough rim of parallel interval provides relatively broad entrance, each latch of the sprocket wheel can be facilitated to be caught in, foregoing knot Structure can also improve smoothness of the chain in speed change in addition to facilitating withdrawing pattern, can while allowing the chain also to be adapted for being used in Become the higher occasion of hop count.

Brief description of the drawings

Other features and effect of the present utility model, will clearly be presented in the embodiment with reference to schema, wherein：

Fig. 1 is the stereogram of a first embodiment of the utility model inner chain sheet；

Fig. 2 is a side view of the first embodiment；

Fig. 3 is that a section view of the first embodiment is used with reference to figure, the phase of the bright inner chain sheet relative chain piece with one To relation；

Fig. 4 is the profile that 4-4 lines are taken along along Fig. 2；

Fig. 5 is a use state schematic diagram of the first embodiment, illustrates the relative pass of the inner chain sheet and a chain System；

Fig. 6 is the chain that a use state of the first embodiment illustrates to assemble the inner chain sheet with reference to figure and one The relativeness of chain wheel set；

Fig. 7 be a second embodiment of the utility model inner chain sheet section view use refer to figure, the bright inner chain sheet and The relativeness of the relative chain piece；

Fig. 8 is a use state schematic diagram of second embodiment, illustrates the relativeness of the inner chain sheet and the chain；

Fig. 9 is a side view of a 3rd embodiment of the utility model inner chain sheet；

Figure 10 is the diagrammatic cross-section that 10-10 lines are taken along along Fig. 9, while illustrating the inner chain sheet, the relative chain piece With the relativeness of a latch；

Figure 11 is the side view of a fourth embodiment of the utility model inner chain sheet；And

Figure 12 is the side view of the 5th embodiment of the utility model inner chain sheet.

Embodiment

Refering to Fig. 1,2,3, a first embodiment of the inner chain sheet 1 of the utility model chain can be with a relative chain piece 2 are engaged, and define an engaging space 3 jointly, and this can be identical with the inner chain sheet 1 with respect to the structure of chain piece 2.This implementation The example inner chain sheet 1 connects the group connecting part comprising two along the spaced group connecting part 11 of a longitudinal centre line 10, one 11 connecting portion 12, and a Xie Dao area 13 for surrounding and being connected to the group connecting part 11 and the outer peripheral edge of connecting portion 12.Often Individual group connecting part 11 all have one with the basal wall 111 of the integrally connected of connecting portion 12, one from the basal wall 111 toward the relative chain piece 2 protruded stigmas 112 protruded, and a joining hole 113 through the basal wall 111 and the protruded stigma 112, the basal wall 111 have one Outer ring surface 114 away from this with respect to chain piece 2, and an inner ring surface 115 for surrounding the protruded stigma 112.

And the connecting portion 12 has one toward away from the direction of engaging space 3 recessed groove 121, and one away from should With respect to the outer joint face 122 of chain piece 2, the groove 121 has two intervals and is respectively adjacent to the trough rim 123 of the group connecting part 11, In the present embodiment, the trough rim 123 is vertical and crosses over the longitudinal centre line 10, and parallel interval, i.e., foregoing trough rim 123 is pair The leap of the title longitudinal centre line 10, in the present embodiment, the outer ring surface 114 of the outer joint face 122 and the group connecting part 11 connects Connect, and the position flushed is in approximately the same plane, and the longitudinal centre line 10 is rough can be by the center of each joining hole 113 Point.

Refering to Fig. 1,3,4, and the Xie Dao areas 13 towards this with respect to chain piece 2, and including two positions in the longitudinal centre line 10 The oblique surface 131 of opposite side, each oblique surface 131 is along the outer peripheral edge extension of the inner chain sheet 1, and is connected to described group and connects Between portion 11 and the connecting portion 12, above-mentioned oblique surface 131 is also all gradual low toward the outer peripheral edge from the longitudinal centre line 10 Tilt.

Refering to Fig. 1,2,3, the present embodiment inner chain sheet 1 when in use, can with structure identical this with respect to chain piece 2 inside and outside Set, and define the engaging space 3 jointly, it is preferred that this also has a phase towards the engaging space 3 with respect to chain piece 2 To groove 21, the confronting grooves 21 also have two relative trough rims 211 corresponding with the trough rim 123 of the inner chain sheet 1, I.e. foregoing relative trough rim 211 is parallel and wide with the trough rim 123 of the inner chain sheet 1.

Refering to Fig. 2,3,5,6, specifically, the present embodiment inner chain sheet 1 when in use, can with one group two-by-two, and and Several outer chain sheets 4 and several chain rivets 5 match one chain of charge-coupled vertical formation, and each chain rivet 5 has central axis 51, two All there is an axial line distance 52, the axial line distance 52 and the chain between the central axis 51 of two adjacent chain rivets 5 The ratio of one overall width 6 is 2.39 ± 0.12.

Chain with aforementioned structure, can speed change and operating in a chain wheel set 9, the chain wheel set 9 have 12 Coaxial sprocket wheel 90, each sprocket wheel 90 have it is several surround the latches 91 that pivot is set, and adjacent latch 91 it Between distance be engaged with each axial line distance 52 of the chain.

The present embodiment inner chain sheet 1 when in use, because the groove 121 of the inner chain sheet 1 is toward away from the engaging space 3 Direction it is recessed, this is also to have the confronting grooves 21 corresponding with the groove 121 with respect to chain piece 2, therefore the cooperation of aforementioned structure, The width in the engaging space 3 can effectively be expanded, along with the trough rim 123 of the groove 121 is parallel interval, therefore, It can effectively expand the A/F that is caught in of the latch 91 for each sprocket wheel 90 on the engaging space 3, therefore the present embodiment The chain is when carrying out speed change, and the latch 91 on each sprocket wheel 90 can be easier to be caught in the engaging space 3.In addition, The Xie Dao areas 13 of each inner chain sheet 1, can also allow the latch 91 of each sprocket wheel 90 to be easier to import the engaging space 3 It is interior, therefore foregoing Dao Xie areas 13 can increase smoothness and convenience of the assembling chain in engagement, the present embodiment is except that can carry Smoothness of the high chain in changed speed operation, and cause the chain to be more suitable for being used in outside the higher occasion of variable hop count, Because the trough rim 123 of each inner chain sheet 1 is parallel interval, therefore it can also increase the easness of withdrawing pattern.

Refering to Fig. 7,8, a second embodiment of the utility model inner chain sheet 1 is also to coordinate with the relative chain piece 2, and The engaging space 3 is defined jointly, the construction of the inner chain sheet 1 is similar with the first embodiment, different places are：The connecting portion The 12 outer joint face 122 and the non-position of outer ring surface 114 of each group connecting part 11 in approximately the same plane, wherein, the outer connection The outer ring surface 114 of face 122 is protruding outside toward the remote engaging space 3.The change of aforementioned structure, can further expand The width in the big engaging space 3.

Specifically, the present embodiment inner chain sheet 1 when in use, can also two-by-two one group, and with the outer chain sheet 4 and The chain rivet 5 match it is charge-coupled it is vertical form the chain, it is preferred that the connecting portion 12 of each inner chain sheet 1 is outwardly, and should The outer joint face 122 of connecting portion 12 is flushed with a lateral surface 41 of the corresponding outer chain sheet 4, two-by-two the adjacent chain The axial line distance 52 and the ratio of the outer width 7 of a maximum of the inner chain sheet 1 between axle 5 are 2.39 ± 0.12.In addition, Aforementioned axis distance 52 is 5.5 ± 0.12 with the ratio of each maximum internal width degree 8 for engaging space 3, so makes chain Each engagement space is all consistent, smooth when when can be effectively increased operating with speed change.The chain with aforementioned structure, is more suitable for Gearshift, speed change in the chain wheel set 9 (referring to Fig. 6) with 12 coaxial sprocket wheels 90.

Refering to Fig. 9,10, the structure of a 3rd embodiment of the utility model inner chain sheet 1 is similar with the first embodiment, The groove 121 also has two from the longitudinal centre line 10 toward the outer peripheral edge of the inner chain sheet 1 gradually low inclined inclined plane 124, the inclined plane 124 can allow the latch 91 more smoothly to slip into the engaging space 3.The utility model the 3rd The inclined plane 124 of embodiment, can further increase width of the engaging space 3 in the region justified close to periphery, convenient The latch 91 is allowed to be caught in, and foregoing inclined plane 124 is due to that will not expand the engaging space 3 close to the region of longitudinal centre line 10 Width, therefore, it can to allow the latch 91 being caught in be engaged with chain and more consolidates.

Refering to Figure 11, the structure of a fourth embodiment of the utility model inner chain sheet 1 is also and the first embodiment class Seemingly, different places is, the groove 121 of the connecting portion 12 be position in the side of the longitudinal centre line 10, and the groove 121 The trough rim 123 is perpendicular to the longitudinal centre line 10.

Refering to Figure 12, the structure of the 5th embodiment of the utility model inner chain sheet 1 is similar with the fourth embodiment, no Same place is that the trough rim 123 of the groove 121 favours the longitudinal centre line 10.The utility model the 4th and the 5th Embodiment allows the groove 121 to be located at the one side of the longitudinal centre line 10, equally has the effect as described in 3rd embodiment.

From described above, the structure of the utility model inner chain sheet 1 is not only novel, when the inner chain sheet 1 is arranged on should On chain, and chain piece 2 relative with this when defining the engaging space 3 jointly, because the groove 121 of the inner chain sheet 1 can expand The width in the big engaging space 3, and the trough rim 123 of parallel interval can also provide one and broad enter on the groove 121 Mouthful, facilitate the latch 91 of each sprocket wheel 90 to be caught in, therefore the utility model inner chain sheet 1 is except with facilitating withdrawing pattern and raising The chain also is adapted for being used in the higher occasion of variable hop count outside the smoothness in speed change.

Only as described above, embodiment only of the present utility model, when can not be limited with this utility model implement Scope, every simple equivalence changes made according to present utility model application the scope of the claims and patent specification content are with repairing Decorations, all still belong in the range of the utility model patent covers.

Claims (13)

1. a kind of inner chain sheet of chain, can define an engaging space jointly by relative chain piece, the inner chain sheet is included with one：

Two group connecting parts, are arranged at intervals, each group connecting part has a joining hole along a longitudinal centre line：And

One connecting portion, connects the group connecting part, and with one toward the groove that the direction away from the engaging space is recessed, this is recessed Groove has the trough rim of two parallel intervals.

2. the inner chain sheet of chain according to claim 1, it is characterised in that the trough rim is perpendicular to the longitudinal centre line.

3. the inner chain sheet of chain according to claim 1, this has one toward the side away from the engaging space with respect to chain piece To recessed confronting grooves, the confronting grooves have the relative trough rim of two parallel intervals, it is characterised in that the trough rim is tilted In the longitudinal centre line, the relative trough rim incline direction of trough rim chain piece relative with this of the inner chain sheet is consistent.

4. the inner chain sheet of chain according to claim 1, it is characterised in that the groove crosses over the longitudinal centre line.

5. the inner chain sheet of chain according to claim 1, it is characterised in that there are the groove two to be located at the longitudinal center The inclined plane of the opposite side of line, each inclined plane is gradually to be tilted from the longitudinal centre line toward the outer peripheral edge of the inner chain sheet.

6. the inner chain sheet of chain according to any one of claim 1 to 5, it is characterised in that each group connecting part has One outer ring surface away from this with respect to chain piece, the connecting portion has the outer joint face of a connection outer ring surface, the outer connection Face and the outer ring surface be flush it is in the same plane.

7. the inner chain sheet of chain according to any one of claim 1 to 5, it is characterised in that each group connecting part has One outer ring surface away from this with respect to chain piece, the connecting portion has the outer joint face of a connection outer ring surface, the outer connection Face is non-in the same plane with the outer ring surface, and the past outside away from the engaging space of the outer joint face outer ring surface It is prominent.

8. the inner chain sheet of chain according to claim 1, it is characterised in that also surrounded comprising one and be connected to described group The Xie Dao areas of the outer peripheral edge of socket part and the connecting portion, the Xie Dao areas are extended between the group connecting part along the outer peripheral edge, and by The longitudinal centre line is gradually tilted toward the outer peripheral edge.

9. the inner chain sheet of chain according to claim 8, it is characterised in that each group connecting part also has one toward the card The protruded stigma that space is protruded is closed, and the joining hole runs through the protruded stigma.

10. a kind of chain, can in a chain wheel set speed change, the chain wheel set has 12 coaxial sprocket wheels, each sprocket wheel It is equipped with several latches, it is characterised in that the chain is included：

Several inner chain sheets according to claim 1, are arranged at intervals and define the engaging space described in one jointly two-by-two；

Several outer chain sheets, are also arranged at intervals two-by-two；And

Several chain rivets, concatenate the adjacent inner chain sheet and the outer chain sheet, and each chain rivet has a central axis, two-by-two All there is an axial line distance, the axial line distance institute adjacent with each sprocket wheel between the central axis of adjacent chain rivet The distance stated between latch is engaged, and aforementioned axis distance and the ratio of an overall width of the chain are 2.39 ± 0.12.

11. chain according to claim 10, it is characterised in that each group connecting part has one adjacent to the outer chain sheet Outer ring surface, the connecting portion has the outer joint face of a connection outer ring surface, and the outer joint face is to flush with the outer ring surface Ground is in the same plane.

12. chain according to claim 10, it is characterised in that each group connecting part has one adjacent to the outer chain sheet Outer ring surface, the connecting portion has an outer joint face of a connection outer ring surface, the outer joint face with the outer ring surface is non-is located at On same plane, and the outer joint face outer ring surface is toward protruding outside away from the engaging space, aforementioned axis distance with The ratio of the outer width of one maximum of the corresponding inner chain sheet is 2.39 ± 0.12.

13. chain according to claim 10, it is characterised in that aforementioned axis distance engages a maximum in space with this The ratio of insied width is 5.5 ± 0.12.