CN2557400Y

CN2557400Y - Chain hiding component for bicycle

Info

Publication number: CN2557400Y
Application number: CN 02220919
Authority: CN
Inventors: 周铭恩
Original assignee: Geant China Co ltd
Current assignee: Geant China Co ltd; Giant China Co Ltd
Priority date: 2002-06-03
Filing date: 2002-06-03
Publication date: 2003-06-25
Anticipated expiration: 2012-06-03

Abstract

The utility model provides a chain hiding component for bicycle comprising a car frame unit, a drive unit and a hiding unit. The car frame has a communication pipe and a connecting piece arranged in the communication pipe with backward extending. The drive unit has a front fluted disc, a rear fluted disc, a connecting piece and a chain arranged between the front and the rear fluted disc. The hiding unit is composed of a front cover to cover the front fluted disc, a chain cover fixed to the connecting piece with backward extending using for breaking-through of the chain and a set of rear covers jointed with the chain cover to cover the external rear fluted disc. Therefore, the chain can be hidden in the hiding unit to prevent the foreign body from twisting in the chain, achieving the efficiency of maintaining safe riding.

Description

Hide the body frame structure for automotive spare of chain

Technical field

The utility model relates to a kind of vehicle frame, is meant that especially a kind of foreign matter that can prevent twists the body frame structure for automotive spare into the hiding chain of chain.

Background technology

As shown in Figure 1, commonly use a kind of bicycle 10 and comprise a vehicle frame unit 11, one gear units 12 and an open chain lid 13.This vehicle frame unit 11 has a connecting pipe (figure does not show), the rod member once 111 that is consolidated in this communicating pipe respectively and up tiltedly stretches forward, the one seat pipe 112 that up extends, one extends the Chain stay 113 of establishing a trailing wheel 14 for group backward, one is cemented in the Seat stay 114 between this pipe 112 and this Chain stay 113, one is cemented in the preceding pipe 115 of this time rod member 111 front ends, and a upper lever 116 that is cemented between this preceding pipe 115 and this pipe 112.This gear unit 12 has one and is the rotating pivot of wearing in the crank assembly 121 of this communicating pipe, one group of preceding fluted disc 122 of tying outside this crank assembly 121 can rotate thereupon and be positioned at this side communicating pipe one, tie in the rear tooth disk 123 of the wheel shaft 141 of this trailing wheel 14 for one group, and one hangs the chain 124 that is connected between this forward and backward fluted disc 122,123.This opening chain lid 13 is microscler plate bodys, has the preceding cap 131 of a locking outside this preceding fluted disc 122, reaches the back cap 132 that an extension is backward put above this chain 124 for cover and is locked in this Seat stay 114.

Because this chain 124 still has partly to reveal to put at this opening chain and covers outside 13, very easily twist into this chain 124 so there is foreign matter, cause influencing and drive safe shortcoming.

As shown in Figure 2, commonly use another kind of bicycle 20 and comprise a vehicle frame unit 21, one gear units 22 and sealed joint lid 23.Put in it though this sealed joint lid 23 can conceal chain (diagram is shown),, cause the heavy shortcoming of these bicycle 20 whole sights because of shared volume is bigger.

Goal of the invention

Therefore, the purpose of this utility model be provide a kind of prevent foreign matter twist into chain, and then can keep driving the body frame structure for automotive spare of safe hiding chain.

So the body frame structure for automotive spare of a kind of hiding chain of the above-mentioned utility model purpose of foundation comprises:

One vehicle frame unit has a connecting pipe, and one is consolidated in the following rod member that extends this communicating pipe forward, and one is mounted on the connecting piece that this communicating pipe extends backward;

One gear unit has one and is the rotating outer preceding fluted disc of a side that is installed in this communicating pipe, and one is mounted on the rear tooth disk of a wheel shaft of this trailing wheel, and one hangs the chain that is connected between this preceding fluted disc and this rear tooth disk; This chain has more a top chain portion and an end chain portion;

One hides and to put the unit, comprises that one puts protecgulum in this preceding fluted disc outside for lid, tie to extend for this chain in this connecting piece for one group to place chain lid in it, and one group is tied in this chain lid and can shelves puts bonnet in this rear tooth disk outside backward; This chain lid has lateral mass in the all-in-one-piece one, the one closedtop piece that the top of lateral mass extends toward the outside in being somebody's turn to do, the one outer lateral mass that down extends from this closedtop piece, reach one and be connected in the inner face of this inside and outside lateral mass and first spacer block that axially extends along this chain lid, the closedtop piece of the end face of this first spacer block and this two inner face and top this top chain portion of key way confession that defines place, and the bottom surface of this first spacer block and this two inner face then define an end key way and place for this chain portion;

In addition, this chain lid can have lateral mass in, one outer lateral mass, one is connected in the inner face of this inside and outside lateral mass and first spacer block that axially extends along this chain lid, the closedtop lid in the top of this inside and outside lateral mass is tied in one embedding, reach an embedding and tie in the underseal lid of the bottom of this inside and outside lateral mass, the end face of this first spacer block and this two inner face and this closedtop cover and define a top key way and place for this top chain portion, and the bottom surface of this first spacer block and this two inner face then define an end key way with this underseal lid and place for this end chain portion;

By above-mentioned composition, chain can be hidden in this Tibetan and put in the unit, reach and prevent that foreign matter from twisting the use effect into this chain.

Advantage of the present utility model:

Because this top chain portion 441,441 ' of the utility model can place in this top key way 526,928, this end chain portion 442,442 ' can place in this end key way 528,929, so being become, this chain 44,44 ' hides design, and then can prevent that foreign matter from twisting into this chain 44,44 ' and take advantage of safety to keep riding the, so can reach the purpose of utility model really, in addition, because of the Tibetan put unit 50,90 overall volume commonly use sealed joint cover 23 small and exquisite, so can make this bicycle integral body seem lighter and handier.

Description of drawings:

Fig. 1 is a kind of front elevation of commonly using bicycle, illustrates that this bicycle has an open chain lid;

Fig. 2 is the front elevation that another kind is commonly used bicycle, illustrates that this bicycle has sealed joint lid;

Fig. 3 is not complete front elevation, illustrates that first preferred embodiment of the body frame structure for automotive spare of the hiding chain of the utility model is installed in the state of a bicycle;

Fig. 4 is a local combination and a cutaway view of this first preferred embodiment, and wherein a protecgulum is removed, and illustrates that a chain is set in a Tibetan and puts in the unit;

Fig. 5 is a partial top view of this first preferred embodiment, and the stationary state of chain lid is described;

Fig. 6 is the exploded block diagram of this first preferred embodiment, illustrates that this Tibetan puts the unit;

Fig. 7 illustrates the design of chain lid along the section-drawing of the line 7-7 among Fig. 6;

Fig. 8 is not complete front elevation, illustrates that second preferred embodiment of the body frame structure for automotive spare of the hiding chain of the utility model is installed in the state of a bicycle;

Fig. 9 is a local combination and a cutaway view of this second preferred embodiment, and wherein a protecgulum is removed, and illustrates that a chain is set in a Tibetan and puts in the unit;

Figure 10 is the exploded block diagram of this second preferred embodiment, illustrates that this Tibetan puts the unit; And

Figure 11 is a combination section, and the assembled state that chain lid and closedtop lid, a underseal cover is described.

The specific embodiment

Shown in Fig. 3,4,5, first preferred embodiment that the utility model is hidden the body frame structure for automotive spare of chain comprises: a vehicle frame unit 30, one gear units 40 and are hidden and are put unit 50.

This vehicle frame unit 30, it is the example explanation that present embodiment is lifted a vehicle frame with incabloc function, has a connecting pipe 31, one is consolidated in the following rod member of up tiltedly stretching this communicating pipe 31 32 forward, one is the pivot that can swing ties the connecting piece 33 that backward extends in this communicating pipe 31, be consolidated in preceding pipe 34, one upper lever 35 of this time rod member 32 respectively, and a shock-absorbing fabricate block 36 that is installed between this upper lever 35 and this connecting piece 33.In addition, a front fork 37 pivots are tied before this pipe 34 and are down extended and organize knot one front-wheel 62, and leader's fabricate block 38 pivots tie that pipe 34 up extends before this, and a chair configuration body 39 is to organize to be located on this upper lever 35.

This gear unit 40 has one and is the rotating pivot of wearing in the crank assembly 41 of this communicating pipe 31, one group of preceding fluted disc 42 of tying outside this crank assembly 41 can rotate thereupon and be positioned at these side communicating pipes 31 1, one is combined in the rear tooth disk 43 of a wheel shaft 61 of this trailing wheel 60, and one hangs the chain 44 that is connected between this forward and backward fluted disc 42,43.This chain 44 has more a top chain portion 441 and an end chain portion 442.

This Tibetan is put unit 50 and is comprised that a lid puts protecgulum 51, this preceding fluted disc 42 outside and be consolidated in the chain lid 52 that this connecting piece 33 extends backward, and one group is tied in this chain and covers 52 and the bonnet 53 that protects to put outside this rear tooth disk 43.

As shown in Figure 6, this protecgulum 51 is to cover this crank assembly 41, and ties in a leading section of this chain lid 52 and can be installed with in these preceding fluted disc 42 outsides by two lock knot parts, 54 locks.

Shown in Fig. 6,7, this chain lid 52 has lateral mass 521 in the all-in-one-piece one, the one closedtop piece 522 that establish toward excurvation on lateral mass 521 tops in being somebody's turn to do, the one outer lateral mass 523 that down extends from this closedtop piece 522, one connects lateral mass 521 in this with relative inner face that should outer lateral mass 523 and along these chain lid 52 first spacer blocks 524 that axially extend, and this two inner face of connection covers 52 second spacer blocks 525 that axially extend and be positioned at these first spacer block, 524 belows along this chain.Between this first spacer block 524 and this two inner face and this closedtop piece 522 and define a top key way 526 that wears for this top chain portion 441, between this first spacer block 524 and this two inner face and this second spacer block 525 and define an intermediate channel 527 that can wear for speed change rope or brake rope or electric wire (figure does not show), then define an end key way 528 that can supply this end chain portion 442 to wear between this second block 525 and this two inner face.Because should be the bottom open design by end key way 528, so still have the function that to be convenient to keep in repair this gear unit 40.

This bonnet 53 has a knot 531 that is consolidated in a rearward end of this chain lid 52, and a lock caking 532 that is in reverse to this knot 531.This lock caking 532 has a fluting 533 and can wear for this wheel shaft 61, again with a nut 55 screw locks in this wheel shaft 61 and push against this lock caking 532, just can make this Tibetan put the 50 whole location (seeing Fig. 3,4,5) that obtain, unit, this bonnet 53 has had the functions of use of hook concurrently simultaneously.

As shown in Figure 4, for this end chain 442 is not exposed in this end key way 528 position really, this first preferred embodiment more comprises an idle pulley fabricate block 70 that is mounted on this connecting piece 33, and this idle pulley fabricate block 70 is positioned at this preceding fluted disc 42 rear sides, can be rotating idle pulley 71 by one should end chain portion 442 up hold, can make this end chain portion 442 really the functions of use in this end key way 528 of position except having, also have can adjust this chain 44 degree of tension to keep the functions of use of best drive state.

In addition, shown in Fig. 4,7, when rotating, produce noise in order to prevent this chain 44, this first preferred embodiment more comprises a noise reduction unit 80, have the hollow top silencing block 81 of inserting in this top key way 526, and silencing block 82 at the bottom of the open hollow of inserting in this end key way 528 in bottom side.When these chain 44 generations are rocked, can make this top, end chain portion 441,442 directly touch this top, end silencing block 81,82 to prevent the noise generation.

In addition, when this first spacer block 524 is not set, can in this second spacer block 525 and this two inner face and these closedtop piece 522 formed spaces, insert font silencing block on the one, can separate out a top key way and an intermediate channel equally, and have the functions of use that can prevent that noise from producing.

Shown in Fig. 8,9,10,11, the utility model second preferred embodiment comprises a vehicle frame unit 30 ', one rotating unit 40 ' and unit 90 is put in a Tibetan.This vehicle frame unit 30 ' is identical with vehicle frame unit 30, the gear unit 40 of this first preferred embodiment with the composition structure of this gear unit 40 ', so repeat no more.

This Tibetan is put unit 90 and is comprised a protecgulum 91, chain lid 92, one bonnet 93, closedtop lid 94 and one underseal lid 95.

The design of this protecgulum 91, bonnet 93 and this protecgulum 51, bonnet 53 are identical.

This chain lid 92 has lateral mass 921, one outer lateral mass 922 in, links one first spacer block 923, one second spacer block 924 and one the 3rd spacer block 925 of a relative inner face of this inside and outside lateral mass 921,922 respectively.This first spacer block 923 can define one first conduit 926 with this two inner face and this second spacer block 924, one second conduit 927 that defines of this second spacer block 924 and this two inner face and the 3rd spacer block 925, this first and second conduit 926,927 can wear for speed change rope or brake rope or electric wire (figure does not show).

This closedtop lid 94 is to make with rubber, plastic material in the present embodiment, supplies to embed a top that is enclosed within this inside and outside lateral mass 921,922, and defines the top key way 928 that wears for a top chain 441 ' with this two inner face and this first spacer block 923.

This underseal lid 95 is to make with rubber, plastic material in the present embodiment, supplies to be nested in the bottom of this inside and outside lateral mass 921,922, and defines the end key way 929 that wears for an end chain 442 ' with this two inner face and the 3rd spacer block 925.

In addition, this second preferred embodiment more comprises one and the idle pulley fabricate block 70 ' (see figure 9) that should end chain 442 ' upwards holds can be had the functions of use that can adjust this chain 44 ' degree of tension.

In addition, this second preferred embodiment also can comprise the unit 80 ' that disappears only, has to insert respectively that one in this top, the end key way 928,929 pushes up, end silencing block 83,84.When this chain 44 ' generation is rocked, can prevent that noise from producing.

Claims

1. the body frame structure for automotive spare of a hiding chain is characterized in that:

One vehicle frame unit has a connecting pipe, and one group is tied in the connecting piece that extends this communicating pipe backward;

One gear unit has one and is the rotating outer preceding fluted disc of this communicating pipe that is installed in, and one is the rotating rear tooth disk that is mounted on a rear axle, and one hangs the chain that is connected between this preceding fluted disc and this rear tooth disk; This chain can be divided into a top chain portion and an end chain portion;

One hides and to put the unit, comprises that a lid puts the protecgulum in this preceding fluted disc outside, and one is consolidated in this connecting piece and extends for this chain backward and place chain lid in it; This chain lid has lateral mass in, the one closedtop piece that the top of lateral mass extends toward the outside in being somebody's turn to do, the one outer lateral mass that down extends from this closedtop piece, reach one and be connected in an inner face of this inside and outside lateral mass and first spacer block that axially extends along this chain lid, this first spacer block and this two inner face and this closedtop piece and top this top chain portion of key way confession that defines place, and this first spacer block and this two inner face then define an end key way and place for this end chain portion.

2. the body frame structure for automotive spare of a hiding chain is characterized in that:

One hides and to put the unit, comprises that a lid puts the protecgulum in this preceding fluted disc outside, and one is consolidated in this connecting piece and extends for this chain backward and place chain lid in it; This chain lid has lateral mass in, one outer lateral mass, one connects an inner face of this inside and outside lateral mass and first spacer block that axially extends along this chain lid, and an embedding is tied in the closedtop lid at a top of this inside and outside lateral mass, this first spacer block and this two inner face and this closedtop cover and define a top key way and place for this top chain portion, and this first spacer block and this two inner face then define an end key way and place for this bottom.

3. the body frame structure for automotive spare of hiding chain according to claim 1 and 2 is characterized in that, this Tibetan is put the unit and more comprised tying in this chain lid for one group and can keep off the bonnet of putting in this rear tooth disk outside.

4. the body frame structure for automotive spare of hiding chain according to claim 1 and 2 is characterized in that, more comprises an idle pulley fabricate block that is mounted on this connecting piece, can will should end chain portion up hold to guarantee to be positioned at this end key way.

5. the body frame structure for automotive spare of hiding chain according to claim 1 and 2, it is characterized in that, more comprise a noise reduction unit, have the top silencing block of a device in this top key way, and the end of device in this end key way monolithic that disappears, can prevent that this chain from touching this chain lid and producing noise.

6. the body frame structure for automotive spare of hiding chain according to claim 1, it is characterized in that, this chain lid more can have this two inner face of connection and cover second spacer block that axially extends and be positioned at this first spacer block below along this chain, and this first and second spacer block and this two inner face can define an intermediate channel.

7. the body frame structure for automotive spare of hiding chain according to claim 2 is characterized in that, this chain lid more can have embedding and tie in the underseal lid of a bottom of this inside and outside lateral mass.

8. according to the body frame structure for automotive spare of claim 2 or 7 described hiding chains, it is characterized in that, this chain lid more can have one and be connected in this two inner face and axially extend and be positioned at second spacer block of this first spacer block below along this chain lid, and this first and second spacer block and this two inner face can define one first conduit.

9. the body frame structure for automotive spare of hiding chain according to claim 8, it is characterized in that, this chain lid has more one and is connected in this two inner face and axially extends and be positioned at the 3rd spacer block of this second spacer block below along this chain lid, and this second and third spacer block and this two inner face can define one second conduit.