CN2467388Y

CN2467388Y - Fly wheel sleeve fluted disc combination structure

Info

Publication number: CN2467388Y
Application number: CN 01208279
Authority: CN
Inventors: 陈富雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-03-09
Filing date: 2001-03-09
Publication date: 2001-12-26
Anticipated expiration: 2011-03-09

Abstract

The utility model relates to a combined structure of a fly wheel sleeve barrel and a fluted disc. The utility model comprises a sleeve barrel, a plurality of fluted discs, at least one connecting element and a nut, wherein, the circumference of the surface of the outer diameter of the sleeve barrel is provided with outer cogs; the inner diameter of the sleeve barrel is provided with internal threads; the inner diameters of central holes of the fluted discs are provided with inner cogs which can be embedded in outset discs; the outer surface of the connecting member is provided with the outer cogs; the upper and the lower end of the connecting element is provided with threads to extend the length of the traditional sleeve barrel; the outer cogs of the connecting element can be embedded in the inner cogs of the fluted discs to increase the number of the fluted discs. Finally, the nut is locked to a first external thread of the connecting element to cause the fluted discs to be fixed on the sleeve barrel.

Description

Flywheel sleeve fluted disc unitized construction

The utility model relates to a kind of flywheel sleeve fluted disc unitized construction, is meant a kind of Connection Element that can be combined in sleeve especially, makes the sleeve that is the regular length specification traditionally can prolong the structure of its length, and then can make up more fluted disc.

Be installed in the Flywheel fluted disc on the general variable speed bicycle flower-drum at present, be by class's fluted disc that several fluted discs were concatenated into 20 octadentates, 24 teeth, 21 teeth, 19 teeth, 17 teeth, 15 teeth and 13 teeth, and, because of being subject to the fixedly specification of flower-drum, its string is located in several fluted discs on the sleeve, the number of teeth of minimum fluted disc is restricted to 13 teeth, can't install the fluted disc that is less than 13 numbers of teeth again, thereby rotating speed can't promote further again.

The Flywheel fluted disc of Regular Bicycle is that the teeth counting disc that will have the different numbers of teeth respectively is fixed on the flywheel sleeve to form an integral body mostly at present, for the steadiness between fluted disc and the sleeve, be fluted disc for good and all to be fixed on sleeve traditionally mostly with " pin ", but thus the time of not only making longer, and can't increase and decrease the quantity of fluted disc at any time or change the fluted disc of the different numbers of teeth.

Moreover, at present the bicycle that has 11 tooth fluted discs in the Flywheel fluted disc installing only limits to have competing for speed of special requirement flower-drum and uses bicycle, but because of costing an arm and a leg of flower-drum, and it is different and incompatible with the specification of Regular Bicycle with bicycle to compete for speed, thereby the flower-drum of competing for speed with bicycle can't be installed in Regular Bicycle, therefore if the fluted disc that will install 11 teeth on the flywheel sleeve of Regular Bicycle trailing wheel is to improve vehicle wheel rotational speed, the design of the known flywheel sleeve that then only changes just can reach.

Further say it, tradition is competed for speed with the Flywheel fluted disc of bicycle, because of being subject to the reason of flywheel sleeve diameter, it at most also can only assemble a fluted disc with 11 tooth numbers of teeth again, but then may develop fluted disc again in the bicycle industry later, thereby no matter present stage obviously can't adapt to later needs at the Regular Bicycle or the Flywheel fluted disc design of competing for speed with bicycle with ten teeth or nine teeth.

The purpose of this utility model is to propose a kind of flywheel sleeve fluted disc unitized construction of being made up of sleeve, fluted disc, Connection Element and nut, owing to the length that can supply between sleeve and the Connection Element to prolong sleeve by the sealed mode of screw thread, and can make up several fluted discs at sleeve and Connection Element, increase fluted disc quantity so as to the restriction that breaks through the flywheel length sleeve, and its assembling, convenient disassembly and freely-increased/decreased fluted disc quantity, thereby solved the existing in prior technology problem.

The technical scheme that the utility model adopted is that it includes:

One sleeve is provided with several outer inserted tooths that are parallel to its central axis the ring week of its external diameter surface, then is provided with negative thread at the internal diameter of this sleeve; Several fluted discs, the centre hole internal diameter of those fluted discs is equipped with the interior inserted tooth that can be embedded in aforementioned outer inserted tooth, uses several fluted discs to be serially connected with this sleeve; At least one Connection Element, it is provided with the outer inserted tooth that ring week distributes at the outside face of circular body, and the upper and lower end at this Connection Element is respectively equipped with first outside thread and second outside thread, and this first outside thread is positioned at the top of this outer inserted tooth, second outside thread of its at least one Connection Element can be locked on the negative thread of aforementioned sleeve, and is somebody's turn to do the interior inserted tooth that outer inserted tooth can be embedded in an aforementioned wherein set fluted disc;

One nut, it has can be locked on the aforementioned first externally threaded negative thread.

Characteristics of the present utility model are, can combine the length that prolongs sleeve by the sealed mode of screw thread owing between sleeve and the Connection Element, and can make up several fluted discs at sleeve and Connection Element, use the restriction that breaks through the flywheel length sleeve and increase fluted disc quantity;

Because it can comprise Connection Element more than two, wherein a Connection Element can be combined in sleeve, and also can combination with one another between two Connection Elements, and then can assemble more fluted disc.

Between fluted disc and the sleeve, or the array mode between fluted disc and the Connection Element, be chimeric mutually in the direction of center shaft, thereby make and can relatively not rotate between embedding dish and sleeve and the Connection Element, and assembly and disassembly are all very convenient by outer inserted tooth and interior inserted tooth.

Fig. 1 is the three-dimensional exploded view of main element syntagmatic of the present utility model.

Fig. 2 is the plan cross-section exploded drawings of main element syntagmatic of the present utility model.

Fig. 3 is the section plan of the structure after each unit construction of Fig. 2.

Fig. 4 is the three-dimensional exploded view of another kind of embodiment unitized construction of the present utility model.

Further specify preferred embodiment of the present utility model in conjunction with above-mentioned each accompanying drawing now.

As shown in Figure 1, flywheel sleeve fluted disc unitized construction provided by the utility model, it includes a sleeve 1; Several

fluted discs

2,2A, 2B; An at least one Connection Element 4 and a nut 5.Sleeve 1 wherein is a kind of tubular body of circle, is provided with several classes at the external diameter of sleeve 1, and the surface of each class ring week is provided with the outer inserted tooth 11 that several are parallel to its central axis, then is provided with negative thread 12 at the internal diameter of sleeve 1.Aforesaid several fluted discs 2 have different external diameters respectively, and are distributed with the different numbers of teeth respectively at excircle; General variable speed bicycle institute general-duty Flywheel fluted disc comprise have 20 octadentates respectively, the fluted disc 2 of seven kinds of numbers of teeth such as 24 teeth, 21 teeth, 19 teeth, 17 teeth, 15 teeth and 13 teeth, to reach the function of seven sections speed changes; These fluted discs 2 are except having the different external diameter and the number of teeth, and the fluted disc of its different size also has the centre hole 20 of different-diameter, in order to be matched with the different classes diameter of sleeve 1 external diameter; Centre hole 20 inner peripherys of each fluted disc 2 then are provided with inserted tooth 21 in several, and the centre hole 20 of fluted disc 2 can be sleeved on sleeve 1; When fluted disc 2 makes up with sleeve 1, be that first fluted disc 2 with maximum gauge is sleeved on sleeve 1 bottom, then a ring 3 is inserted in sleeve 1 and is positioned on the maximum fluted disc 2, again the second large diameter fluted disc 2 is sleeved on sleeve 1 and places on this ring 3, be inserted in a ring subsequently more in regular turn, one fluted disc, one ring, the rest may be inferred, till seven set fluted discs are combined in sleeve 1, inserted tooth 21 is embedded in the outer inserted tooth 11 that is located at sleeve 1 in allowing simultaneously, make and relatively to rotate between fluted disc 2 and the sleeve 1, and reach according to this most fluted discs 2 strings are located at sleeve 1 purpose of (as shown in Figure 2).

Because aforesaid Regular Bicycle flywheel sleeve 1 length is to adapt to the specification of trailing wheel flower-drum and must stipulate in this kind length, therefore can only assemble seven fluted discs at most, can't increase the fluted disc of the following number of teeth of 13 teeth again; Based on this, feature of the present utility model is to produce Connection Element 4 in addition independently, the end that is combined in sleeve 1 by this Connection Element 4 to be prolonging the length of sleeve 1, and then the fluted disc that will have 11 teeth is combined in Connection Element 4, to reach the function of amplification fluted disc number.

The Connection Element 4 of Figure 1 and Figure 2, its outside face at circular body is provided with a prominent plate 41, Connection Element 4 rings of prominent plate 41 tops are distributed with several outer inserted tooths 42 week, Connection Element 4 outside faces of inserted tooth 42 tops are provided with first outside thread 43 outside, Connection Element 4 outside faces of prominent plate 41 belows then are provided with second outside thread 44, after seven fluted discs such as aforementioned 13 teeth to two, ten octadentates are combined in sleeve 1, again second outside thread 44 of Connection Element 4 is locked on the negative thread 12 of sleeve 1, make Connection Element 4 and sleeve 1 be fixed together, just the fluted disc 2A centre hole with 11 teeth can be placed in Connection Element 4 then and fluted disc 2A is placed on the prominent plate 41, and make the set interior inserted tooth 2A1 of fluted disc 2A be embedded in the outer inserted tooth 42 of Connection Element 4, make and to rotate relatively between embedding dish 2A and the Connection Element 4, the last negative thread 51 that utilizes nut 5 again is locked on first outside thread 43 of Connection Element 4, and then fluted disc 2A is lock onto Connection Element 4 by nut 5, reach the purpose that increases fluted disc.Structure after its combination as shown in Figure 3.

Except the fluted disc of aforementioned increase by 11 teeth, the utility model can also increase a Connection Element again to increase a fluted disc with ten teeth or nine teeth again.As shown in Figure 4, another embodiment of the present utility model includes two Connection Elements 4,4A and increase by two

fluted disc

2A, 2B; Wherein the structure of Connection Element 4,4A is identical substantially, both all are provided with a prominent plate 41,4A1 at the outside face of circular body, prominent plate 41,4A1 top be distributed with several outer inserted tooths 42,4A2 Connection Element ring week, the Connection Element outside face of inserted tooth 42,4A2 top is provided with first outside thread 43,4A3 outside, the Connection Element outside face of prominent plate 41,4A1 below then is provided with second outside thread 44,4A4, just the size of Connection Element 4 is greater than Connection Element 4A, and the internal diameter at Connection Element 4 is provided with negative thread 45, but Connection Element 4A is not located at negative thread.In structure shown in Figure 4, the negative thread 51 of nut 5 must be the first outside thread 4A3 that can be locked on fluted disc 4A.

By element shown in Figure 4 and structure, during its combination, it is the negative thread 12 that second outside thread 44 of Connection Element 4 is locked on sleeve 1, make Connection Element 4 and sleeve 1 be fixed together, the fluted disc 2A centre hole that will have 11 teeth then is placed in Connection Element 4 and fluted disc 2A is placed on the prominent plate 41, and make the set interior inserted tooth 2A1 of fluted disc 2A be embedded in the outer inserted tooth 42 of Connection Element 4, make and to rotate relatively between fluted disc 2A and the Connection Element 4; Then the second outside thread 4A4 of Connection Element 4A is locked on the negative thread 45 of Connection Element 4, make Connection Element 4 and 4A be fixed together, the fluted disc 2B centre hole that will have ten teeth or nine teeth then is placed in Connection Element 4A and fluted disc 2B is placed on the prominent plate 4A1, and make the set interior inserted tooth 2B1 of fluted disc 2B be embedded in the outer inserted tooth 4A2 of Connection Element 4A, cause between fluted disc 2B and the Connection Element 4A and cannot rotate relatively, the last negative thread 51 that utilizes nut 5 again is locked on the first outside thread 4A3 of Connection Element 4A, and then by nut 5 fluted disc 2B is lock onto Connection Element 4A and reach integral body and increase to and have the purpose of nine fluted discs.Certainly, utilize more multi-link element of the present utility model, also can increase the more fluted disc of combination again, break through the restriction of flywheel length sleeve and increase the more function of multistage speed change.

Above-described only is in order to explain preferred embodiment of the present utility model; be not that attempt is done any pro forma restriction to the utility model according to this; so; all have under identical creation spirit relevant any modification of the present utility model or a change, all must be included in the category of the utility model claims protection.

Claims

1, a kind of flywheel sleeve fluted disc unitized construction is characterized in that it includes:

One sleeve is provided with several outer inserted tooths that are parallel to its central axis the ring week of its external diameter surface, then is provided with negative thread at the internal diameter of this sleeve; Several fluted discs, the centre hole internal diameter of those fluted discs is equipped with the interior inserted tooth that several fluted discs can be serially connected with this sleeve that can be embedded in described outer inserted tooth, at least one Connection Element, its outside face at circular body is provided with the outer inserted tooth that ring week distributes, and the upper and lower end at this Connection Element is respectively equipped with first outside thread and second outside thread, and this first outside thread is positioned at the top of this outer inserted tooth, second outside thread of its at least one Connection Element can be locked on the negative thread of aforementioned sleeve, and is somebody's turn to do the interior inserted tooth that outer inserted tooth can be embedded in a described wherein set fluted disc;

One nut, it has can be locked on the described first externally threaded negative thread.

2, flywheel sleeve fluted disc unitized construction as claimed in claim 1, it is characterized in that, described Connection Element has more than two, the inside face of the circular body of this Connection Element is provided with negative thread, and this negative thread can be locked on second outside thread of other Connection Element, and described nut has the first externally threaded negative thread that can be locked together in Connection Element.