CN2313101Y - Chain - Google Patents

Abstract

The utility model relates to a chain, which is composed of an outer chain plate, an inner chain plate, a chain roller and a combined element, wherein, both ends of the inner chain plate and both ends of the inner chain plate are respectively provided with a circular arc face and are engaged with each other through a lumbar part; the diameter of the circular arc face of the outer chain plate is equal to the diameter of the circular arc face of the inner chain plate but is less than or equal to the diameter of the chain roller; the chain can be cooperated with a speed changing fluted disc by the structure design with favorable gearing; when the utility model is matched with a single speed fluted disc, because the diameter of the circular arc face of the inner chain plate is less than or equal to the diameter of the chain roller, the contact noise between a clamping tooth and the inner chain plate caused by the deformation of the fluted disc or assembling errors can be reduced; the volume of the material of a single chain can be reduced by the structure design and weight can be lightened.

Description

Chain

The utility model relates to the chain that is mainly used in transmission in a kind of engineering part of mechanical engineering field common engineering, particularly relate to a kind of can be with performing fast and reducing noise, reduce the chain of the new structure of effects such as material volume and weight reduction.

In recent years, in order to make chain structure that breakthrough development be arranged, and its effect is improved more, the design people actively is devoted to the structure improvement of chain, make it from moulding, innovation is all arranged on the function, wherein the design on function is at first paid attention to cooperate with the latch of Variable speed fluted disc, if the structural design of chain is proper, can when carry out speed change, reach apace and go up, lower gear and can prevent the effect of chain releasing, therefore, in order to keep on improving, not not therefore and self-satisfied the design people, still makes great efforts to be devoted to further develop the work of research again after a series of innovative designs obtain certainly.

Present existing chain is according to the needs of different occasions, generally divide into two kinds of structural types of speed-changing chain and single speed chain, wherein speed-changing chain is its main demand with functional design, the single speed chain is its main demand with smoothness and reduction noise then, under the different situation of appeal point, speed-changing chain is just different with the structural design of single speed chain at present, therefore the producer need provide the chain of different structure type to comply with and need choose for the Consumer, the design people i.e. research idea repeatedly, though the chain of two kinds of structural types has different structural designs according to its different demand, yet if can design a kind of chain of common type, this chain both can be used for speed-changing chain, also can use for the single speed chain, and can solve present existing speed-changing chain and the existing problem of single speed chain simultaneously, production line is simplified more, and can improve the Applicable scope of chain, be necessary in fact, so the design people is at first at present existing speed-changing chain, the problem definition that the single speed chain exists is as follows:

(1) discusses with speed-changing chain earlier, the design of speed-changing chain is main demand target with " being easy to perform " mostly, therefore the design people once designed multiple chain with the effect that is easy to perform, as " improved type chain " etc., it is demand with the arc surface diameter of outer plate greater than the diameter of inner plate arc surface promptly, make chain when performing, the space that can perform is strengthened, and can reach the effect that is easy to perform; Yet probe into from the technical field of multi-speed bicycle, the effect that " is easy to perform ", it is not the design of depending on chain fully, especially in recent years Variable speed fluted disc, dialling relevant its structural design of speed change member such as chain device more and more adds superior, whether be easy to perform and be that the ratio of principal element is more and more littler with the chain, and need only chain in the process of speed change, it can more press close to desire the fluted disc of gear shift, can be by Variable speed fluted disc, dial the matching design of chain device, reach the effect that makes chain be easy to perform, therefore the design direction of speed-changing chain should be revised again, more to be close to the design of fluted disc, is main demand and reach with the purpose that performs fast.

(2) discuss with the structure of single speed chain again, because of the structure of single speed chain need not speed-change and gearshift, therefore the smoothness and the noise problem of its running when the appeal point of its structure is to cooperate with fluted disc, and this two problem has direct related with the structure of fluted disc, because of general fluted disc all is to be stamped to form by sheet metal, it is in manufacture process, can be because of many external factors, and cause fluted disc to produce a little torsional deformation phenomenon, and when current rear tooth disk is installed on the bicycle, also can be because of the error in the assembling, fluted disc is not in same plane before and after causing, therefore when chain is installed on the fluted disc of front and back, the problem that not only can cause action to have some setbacks, and because of the structure of single speed chain for as shown in figure 10, the diameter of its inner plate 80 is all greater than the diameter of chain roller 81, so make inner plate 80 and 81 on chain roller can form drop, as shown in figure 11, make latch can't block incoming link roll 81 places smoothly, but pull in inner plate 80 in the top, though latch still can be slided incoming link roll 81 places, yet, therefore on-streamly promptly can produce bigger noise because of the impact noise that drop produced is quite big.

When the design people improves the structure of single speed chain in desire, once considered if with the structure applications of I " improved type chain " on the single speed chain, when can inner plate and the isometrical design of chain roller, solve the problem that present single speed chain exists, yet because of the structure that preceding case disclosed also can't satisfy the requirement of speed-changing chain now, in use still have flaw to exist, wherein especially so that problem that can't fast slewing is the most remarkable owing to be subjected to the restriction of outer plate, because of the structure shown in the case before being somebody's turn to do, the diameter of its outer plate arc surface is the diameter greater than the inner plate arc surface, therefore in the process of performing, be subject to the restriction of outer plate, make that it must be through the shift procedure of about four latches, just can finish the action of performing, relatively, promptly can't reach the demand of fast slewing, therefore for providing a kind of while with speed-changing chain, the double effects that the single speed chain all is suitable for, the design people is then again through repeatedly research and development repeatedly, finally design the chain of the utility model new structure, hope is with the structure improved chain of the utility model, can not only be applicable to Variable speed fluted disc or single speed fluted disc simultaneously, and by this structural design, make the reduction in bulk and the weight saving of chain, and the load of speed change member is alleviated, and can reach the effect smoothly that turns round.

Main purpose of the present utility model is, overcome the defective of existing chain, and provide a kind of chain of new structure, make this chain by outer plate, inner plate, chain roller and other elements are formed, wherein, outer plate is connected waist by the both sides arc surface and forms, and the equal diameters of the arc surface diameter of inner plate and outer plate arc surface, and the diameter that all is less than or equal to the chain roller, so after combination, because the cause of outer plate arc surface diameter reduction, make the latch that chain can more be pressed close to desire to perform when performing, and finish the program of performing in the shortest shift time, with the design of this kind new structure, can cooperate other speed change members, reach the effect that performs fast, have more functional speed-changing chain and become one.

Another purpose of the present utility model is, a kind of chain of new structure is provided, make its diameter be less than or equal to the design of chain roller diameter by the inner plate arc surface, make chain when cooperating with the single speed fluted disc, can reduce because of the distortion of fluted disc own or assembly error make latch contact the noise that is produced with inner plate, and it is more smooth and easy and can reduce the single speed chain of noise to become a running.

Another purpose of the present utility model is, a kind of chain of new structure is provided, make its structural design by the arc surface diameter reduction of chain outer plate, inner plate, make its integral material reduction in bulk, not only can save material volume, and can make the weight saving of whole chain, and can reduce the load of speed change member.

The purpose of this utility model is to be realized by following technological scheme.

According to a kind of chain that the utility model proposes, this chain is made up of with composition element outer plate, inner plate and chain roller, this outer plate and inner plate two ends are the structural design of arc surface, be connected mutually with waist between arc surface, it is characterized in that the arc surface diameter of above-mentioned outer plate equals the diameter of inner plate arc surface, and the diameter of inner plate, outer plate arc surface is less than the diameter of chain roller.

According to a kind of chain that the utility model proposes, this chain is made up of with composition element outer plate, inner plate and chain roller, this outer plate and inner plate two ends are the structural design of arc surface, be connected mutually with waist between arc surface, it is characterized in that the arc surface diameter of above-mentioned outer plate equals the diameter of inner plate arc surface, and the diameter of inner plate, outer plate arc surface equals the diameter of chain roller.

The utility model compared with prior art has tangible advantage and good effect.By above technological scheme as can be known, the utility model chain is by outer plate, inner plate, chain roller and composition element are formed, wherein, the outer plate two ends are arc surface, and be connected mutually with waist, and the equal diameters of the diameter of outer plate arc surface and inner plate arc surface, but the diameter that all is less than or equal to the chain roller, with this new structure design, after combination because the cause of outer plate arc surface diameter reduction, make the latch that chain can more be pressed close to desire to perform when performing, and finish the program of performing, and can cooperate other speed change members in the shortest shift time, reach fast and perform, and have the better effect of function of use; Its diameter by the inner plate arc surface is less than or equal to the design of chain roller diameter, make chain when cooperating with the single speed fluted disc, can reduce because of the distortion of fluted disc own or assembly error make latch contact the noise that is produced with inner plate, it is more smooth and easy and can reduce the single speed chain of noise to become a running; It makes its integral material reduction in bulk by the structural design of the arc surface diameter reduction of chain outer plate, inner plate, not only can save material volume, and can make the weight saving of whole chain, and can reduce the load of speed change member.Therefore as can be known, the utility model chain can cooperate with Variable speed fluted disc and performs smoothly, and when cooperating with the single speed fluted disc, can reduce fluted disc itself is out of shape or assembly error causes latch and the contact noise between inner plate, and the material volume of single chain is reduced, but and weight reduction.

In sum, the utility model is to the overall structure improvement of chain, can provide a kind of can cooperate as speed-changing chain with Variable speed fluted disc, or cooperate new structure with the single speed chain as the single speed chain, and have and perform smoothly, the advantage that noise is low, while is with the structural design of this innovation, have and to reduce material volume, alleviate the good effect of chain own wt, it is in limited field, chain technical development space, bigger improvement is arranged technically, and produced handy and practical excellent results, and has the effect of enhancement really, thereby be suitable for practicality more, no matter it structurally or bigger improvement is all arranged on the function, really is a novelty, progressive, practical new design.

Concrete structure of the present utility model is provided in detail by following examples and accompanying drawing thereof.

Fig. 1 is the stereoscopic schematic representation of the utility model chain.

Fig. 2 is the front elevational schematic of the utility model chain.

Fig. 3 is the cross-sectional schematic of the utility model chain.

Fig. 4 is the cross-sectional schematic of the another kind of structural type of the utility model chain.

Fig. 5 be the utility model be speed-changing chain analyse and observe the action schematic representation.

Fig. 6 is that the utility model is the planar gesture schematic representation of speed-changing chain.

Fig. 7 is that the utility model is the cross-sectional schematic of single speed chain.

Fig. 8 is that the utility model is the plan cross-section schematic representation of single speed chain.

Fig. 9 is a floor map of the present utility model.

Figure 10 is the structure cross-sectional schematic of existing chain.

Figure 11 is the structural plan cross-sectional schematic of existing chain.

Below in conjunction with accompanying drawing and preferred embodiment, to its concrete structure of chain, feature and effect thereof according to the new structure that the utility model proposes, describe in detail as after.

See also shown in Figure 1, the chain of the utility model new structure, its chain roller 10 with central authorities is the center, both sides are respectively inner plate 11, the outside of inner plate 11 is an outer plate 12, and outer plate 12, inner plate 11 and chain roller 10 is formed the structure kenel of chain by the chain pin 13 of composition element.

The both sides of outer plate 12 are the structural design of arc surface 121, and by waist 122 linkings two arc surfaces 121, and form specific structure kenel, and the both sides of inner plate 11 also are the structural design of arc surface 111, and be connected two arc surfaces 111 by waist 112 equally, and arc surface 121 diameters of outer plate 12 equal arc surface 111 diameters of inner plate 11, and the diameter of inner plate 11 arc surfaces 111 and outer plate 12 arc surfaces 121 is slightly less than or equals to be chain roller 10 diameters cylindraceous, as Fig. 1, Fig. 2, shown in Figure 3, for the diameter of inner plate 11 arc surfaces 111 and outer plate 12 arc surfaces 121 all less than chain roller 10 diameters, shown in Figure 4 then is that the diameter of inner plate 11 arc surfaces 111 and outer plate 12 arc surfaces 121 is equal to chain roller 10 diameters.

Design focal point of the present utility model has three, and one is arc surface 121 diameter reduction of outer plate 12, make when performing, and because of the interrupted reduction of latch, and the latch that makes chain more be pressed close to desire to perform, and in the shortest time, finish the program of performing; It two is equal to or less than the structural design of chain roller 10 for arc surface 111 diameters of inner plate 11, when chain is cooperated with the single speed fluted disc, both made slightly torsional deformation of fluted disc itself, or produce error in the fluted disc assembling, still can avoid latch bump inner plate, and then can reduce noise and increase the smoothness that turns round; It three is by outer plate 12 structural design with the arc surface diameter reduction of inner plate 11, the volume of chain and weight is all reduced, and can reduce the load of dirivig member.For the ease of further understanding improvement structure of the present utility model and using effect, conjunction with figs. explains detailedly as follows now:

(1) situation that cooperates Variable speed fluted disc to use: please cooperate and consult Fig. 5 and shown in Figure 6, the diameter of the utility model outer plate 12 arc surfaces 121 is the design of reduction, therefore when performing, latch cooperated when performing program with existing speed-changing chain in the past, chain may can't be close to latch because of the restriction of outer plate, therefore must can perform smoothly through the shift procedure about four latches, yet design of the present utility model by among Fig. 5 and Fig. 6 as can be seen, because the innovation structure of outer plate 12 design, can be when performing, because of the restriction of outer plate reduces, therefore make chain can be close to latch 20, so only need to finish the program of performing, therefore can reach the good rapidly effect that performs via two latches shown in Figure 6.

(2) situation that cooperates the single speed fluted disc to use: please cooperate and consult Fig. 7 and shown in Figure 8, latch 30 should be at chain roller 10 places with the cooperation position of chain under the normal state, yet as if distortion because of fluted disc itself, or the deviation in the fluted disc assembling, and the cooperation position that causes latch 30 and chain is at inner plate 11 during with chain roller 10 joining places, because the structural relation that inner plate 11 of the present utility model and chain roller are 10, be less than or equal to the design of chain roller 10 diameters for inner plate 11 arc surfaces 111 diameters, and the width of general latch is the thickness greater than inner plate 11, therefore can not make latch touch any drop place, relatively, in the process of running, promptly can not produce the noise of bump, not only can reach and move effect smoothly, and can make noise reduce to minimum level.

(3) discuss with overall structure: see also shown in Figure 9, the utility model is with the structural design of outer plate 12 with inner plate 11 arc surface diameter reduction, can make the volume in zone shown in the imaginary line among the chain minimizing figure, therefore the material volume of whole chain is obviously reduced, relatively, also make the weight saving of chain, therefore the manufacture cost of chain is significantly reduced, the load of dirivig member is reduced.

Claims (2)

1, a kind of chain, this chain is made up of with composition element outer plate, inner plate and chain roller, and this outer plate and inner plate two ends are the structural design of arc surface, are connected mutually with waist between arc surface, it is characterized in that:

The arc surface diameter of above-mentioned outer plate equals the diameter of inner plate arc surface, and the diameter of inner plate, outer plate arc surface is less than the diameter of chain roller.

2, a kind of chain, this chain is made up of with composition element outer plate, inner plate and chain roller, and this outer plate and inner plate two ends are the structural design of arc surface, are connected mutually with waist between arc surface, it is characterized in that:

The arc surface diameter of above-mentioned outer plate equals the diameter of inner plate arc surface, and the diameter of inner plate, outer plate arc surface equals the diameter of chain roller.

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