CN2818318Y - Driver on front wheel of bicycle - Google Patents

Abstract

The utility model relates to a driving device for a front wheel of a bicycle, which is mainly composed of a central rod, a shaft sleeve group, a gearwheel disc and two rocking rods. When the utility model is combined, the central rod is assembled on a support shaft of a front fork, the shaft sleeve group is assembled on the central rod, and the gearwheel disc is arranged on the right side of the shaft sleeve group. The two rocking rods are respectively arranged on the shaft center end of the shaft sleeve group from both sides, a ratchet is arranged on the shaft center of a front wheel of a bicycle, and the gearwheel disc is provided with a chain connected with the ratchet. The gearwheel disc is driven by rotating the rocking rods with hands to drive the chain, and meanwhile, the ratchet is driven to rotate so as to drive the front wheel. Thus, the utility model achieves the purposes that the front wheel and a rear wheel can simultaneously drive the bicycle to move forwards and users move the upper parts of bodies.

Description

Bicycle front-wheel drive device

Technical field

The utility model is relevant a kind of bicycle front-wheel drive device, is meant a kind of actuating device that is arranged at bicycle front-wheel top especially, can drive the chain drive front-wheel by the hand rotating rocker, and the bicycle f-w-d is advanced.

Background technology

Bicycle is a kind of for the vehicle, because the progress of epoch and science and technology, existing now many than bicycle more the vehicle of quick and convenient go out (as the popular vehicle such as locomotive, automobile or bus, rapid transit etc.) mutually then, make bicycle become the sports equipment of a kind of leisure and motion gradually, also slowly become a kind of motion agitation and drive bicycle.

So, standard bicycle all adopts the transmission of back-wheel drive mode, it is provided with the chain that a transmission is used in frame below toothed disc outer rim, this chain is connected to the gear on the rear axle, when utilizing foot, the user tramples said gear dish both sides pedal, the mode application of force driven gear disc spins of trampling with intersection, by rotating by the chain indirect drive rear axle gear on this toothed disc, can drive bicycle advances, control direction and the control brake mechanism that bicycle advances with hand again, but and easy operation bicycle person.

But, when driving bicycle because of adopting the mode transmission of back-wheel drive, make the rider only can be movable to foot, its hand is used to control the chance that bicycle also can't obtain moving, and the mode of motion of this single form makes for a long time to drive the user of bicycle as motion, also can only move to lower part of the body position, make lower part of the body muscle flourishing (like the cyclist), it but can't obtain the motion of appropriateness in position above the waist, causes its user's stature ratio and figure inhomogeneous.The standard bicycle very convenient in design use of type of drive thereafter, but how to provide the mode of an isostatic movement, the space that still still haves much room for improvement.

The utility model content

Main purpose of the present utility model aims to provide a kind of bicycle front-wheel drive device, advances by using hand and foot to drive bicycle simultaneously by this bicycle front-wheel drive device, to reach the labour-saving effect.

An of the present utility model purpose aims to provide a kind of bicycle front-wheel drive device, utilizes hand to come rotating rocker to drive bicycle and advances, and user's motion health purpose at position above the waist is provided.

In order to achieve the above object, the utility model mainly includes:

One center rod is to be connected on the frame-front fork fulcrum.

One axle sleeve group is to be fixedly arranged on the center rod with an axle sleeve, axes sleeve is located in the axle sleeve again, wears the axle center with a bearing, with a hexagonal (hexagon)nut bearing and axle center is screwed togather.

One toothed disc, this toothed disc is to be assembled from the fluted disc both sides by two antifouling bluff pieces, utilizes fluted disc center shaft borehole jack to be located on the axle center of axle sleeve group, and the tooth portion of this fluted disc outer rim is a sheathed chain, this chain is to extend in conjunction with a ratchet downwards, and this ratchet is located at front wheel spindle in the heart.

One rocking bar is to utilize the shrinkage pool of hand lever one end to be screwed together in the place, axle center of axle sleeve group, and the end in addition of its hand lever is to extend a handle, and this handle outside is to coat a plastics handle.

By forming bicycle front-wheel drive device by above-mentioned member, the user can use hand to drive bicycle to advance, also can drive bicycle with foot simultaneously, make that driving bicycle can temper upper and lower half body muscle simultaneously, can reach the purpose of isostatic movement for the user.

The detailed description that sees also following relevant the utility model one preferred embodiment is accompanying drawing extremely, can further understand technology contents of the present utility model and purpose effect thereof; The accompanying drawing of relevant this embodiment is:

Description of drawings

Fig. 1 is a thin parts exploded drawings of the present utility model;

Fig. 1-1 is the exploded drawings of Fig. 1 axle sleeve group;

Fig. 2 is a big parts exploded drawings of the present utility model;

Fig. 3 is preferred embodiment figure of the present utility model;

Fig. 4 is the ratchet enlarged drawing of Fig. 3;

Fig. 5 is the front-wheel drive enlarged drawing of Fig. 3;

Fig. 6 is a side-looking action scheme drawing of the present utility model.

[primary clustering nomenclature]

10.. center rod

11.. front fork fulcrum

20.. axle sleeve group

21.. axle sleeve

22.. bearing

23.. axle center

24.. hexagonal (hexagon)nut

30.. toothed disc

31.. antifouling bluff piece

321.. tooth portion

322.. central axis hole

32.. fluted disc

33.. chain

34.. ratchet

40.. rocking bar

41.. hand lever

42.. shrinkage pool

43.. handle

44.. plastics handle

The specific embodiment

Now for further structure of the present utility model, use and feature thereof being had darker one deck, clear and definite, full and accurate understanding and understanding, utility model people enumerates preferred embodiment, cooperates graphic being described in detail as follows:

At first see also Fig. 1 to shown in Figure 3, the utility model is to be a kind of bicycle front-wheel drive device, and it mainly comprises:

One center rod 10 is to be connected on the frame-front fork fulcrum 11.

One axle sleeve group 20 is to be fixedly arranged on the center rod 10 with an axle sleeve 21, axle center 23 is sheathed in the axle sleeve 21 again, wears axle center 23 with a bearing 22, with a hexagonal (hexagon)nut 24 bearing 22 and axle center 23 is screwed togather.

One toothed disc 30, this toothed disc 30 is to be assembled from fluted disc 32 both sides by two antifouling bluff pieces 31, utilize fluted disc 32 central axis holes 322 to be sheathed on the axle center 23 of axle sleeve group 20, the tooth portion 321 of these fluted disc 32 outer rims is sheathed chains 33, this chain 33 is to extend in conjunction with a ratchet 34 downwards, and this ratchet 34 is located at front wheel spindle in the heart.

One rocking bar 40 is to utilize the shrinkage pool 42 of hand lever 41 1 ends to be screwed together in 23 places, axle center of axle sleeve group 20, and the end in addition of its hand lever 41 is to extend a handle 43, and these handle 43 outsides are to coat a plastics handle 44.

The utility model is when combination, be that this center rod 10 is arranged on front fork fulcrum 11 central parts, be positioned the axle sleeve group 20 that combines on the center rod 10 again and with its combination, and the ratchet 34 of said gear dish 30 is to insert bicycle front-wheel axle center, with toothed disc 30 same sides (as shown in Figure 4), again this toothed disc 30 was worn the axle center 23 of axle sleeve group 20 with central axis hole 322, and the chain 33 that is linked to ratchet 34 and fluted disc 32 outer rims can be complied with needed length adjustment degree of tightness state, when can being rotated because of toothed disc 30, ratchet 34 driven by chain 33, rotate and drive the front-wheel axle center indirectly, be connected with axle sleeve group 20 axle center 23 respectively from axle sleeve group 20 both sides with two rocking bars 40 again, and it is fixing to use screw nut that it is combined closely, as the point of application (as shown in Figure 5) that drives.

Please consult Fig. 6 again, the utility model is when manipulating, be to grip plastics handle 44 places on the rocking bar 40 1 end handles 43 with hand, and rotate this rocking bar 40 (the utility model is to rotate forward) with single hand of rotation, make axle center 23 rotation driven gear dishes, 30 rotations, can f-w-d be advanced by drive ratchet 34 rotations by chain 33.

And advance when desiring to stop when bicycle, be direction with above-mentioned rotation toward backward rotation, make toothed disc 30 reverse revolutions, utilizing chain 33 to drive ratchet 34 reverses, ratchet 34 card is stopped the front-wheel axle center, and front-wheel is stopped operating, allow bicycle no longer drive to advance and progressively stop.

By by device of the present utility model, install front-wheel drive in tradition on foot-powered bicycle frame-front fork fulcrum 11, make it when driving bicycle, can use the trick double driving bicycle at any time, using hand to drive bicycle advances, can temper muscle above the waist, promote the health motion at position above the waist.

But the above, it only is preferred embodiment of the present utility model, when not limiting the scope that the utility model is implemented with this, promptly the simple equivalent of being done according to the utility model claim and utility model description generally changes and modifies, and all should still belong in the scope that the utility model patent contains.

Claims (1)

1. a bicycle front-wheel drive device is characterized in that, includes:

One center rod is to be connected on the frame-front fork fulcrum;

One axle sleeve group is to be fixedly arranged on the center rod with an axle sleeve, axes sleeve is located in the axle sleeve again, wears the axle center with a bearing, with a hexagonal (hexagon)nut bearing and axle center is screwed togather;

One toothed disc, this toothed disc is to be assembled from the fluted disc both sides by two antifouling bluff pieces, utilizes fluted disc center shaft borehole jack to be located on the axle center of axle sleeve group, and the tooth portion of this fluted disc outer rim is a sheathed chain, this chain is to extend in conjunction with a ratchet downwards, and this ratchet is located at front wheel spindle in the heart;

One rocking bar is to utilize the shrinkage pool of hand lever one end to be screwed together in the place, axle center of axle sleeve group, and the end in addition of its hand lever is to extend a handle, and this handle outside is to coat a plastics handle.

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