CN205034288U - Bicycle front derailleur - Google Patents
Bicycle front derailleur Download PDFInfo
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- CN205034288U CN205034288U CN201520772771.2U CN201520772771U CN205034288U CN 205034288 U CN205034288 U CN 205034288U CN 201520772771 U CN201520772771 U CN 201520772771U CN 205034288 U CN205034288 U CN 205034288U
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Abstract
The utility model discloses a bicycle front derailleur (20), it includes base component (21), chain guide portion (22), hookup subassembly, cable guide portion (231) and cable fastening portion (232). Base components are installed is in bicycle frame (11). Chain guide portion is withdrawing the position and is expanding pivot between the position. The hookup subassembly includes first connection part (23) and second connection part (24). First connection part is around first pivot axis (X1) and second pivot axis (X2) pin joint in base member and chain guide portion. The second connection part is with chain guide portion pin joint in base component. Cable guide portion sets up on first connection part. Cable fastening inferior officer controls cable (B3) and is fixed in first connection part. Cable fastening portion is set up on first connection part between cable guide portion and second pivot axis. According to the utility model discloses a preceding group of chain ware can increase the clearance between rear tire and the cable fastening portion, prevents that cable fastening portion from interfering rear tire.
Description
Technical field
The utility model relates to bicycle art.Specifically, a kind of bicycle front derailleur is related to.
Background technology
Bicycle is a kind of traffic of commonly using of people and converter tools.People expect that the various parts by improving bicycle improve bicycle so that use.Can carry out in the bicycle of variable speed operation, rider with the front shift control apparatus of finger manipulation and rear shift control apparatus, thus mechanically operates corresponding front chain shifter and rear derailleur via cable.In either case, usually apply operating effort to operate control stalk by one of them finger of rider, and this operating effort is delivered to the actuating mechanism of bicycle chain puller by the cable being fixed to control stalk and actuating mechanism.
Utility model content
The purpose of this utility model is to provide a kind of bicycle front derailleur, and it can increase the gap between rear tire and cable fastening part, thus prevents cable fastening part from interfering rear tire.
According to the 1st aspect of the present utility model, provide a kind of bicycle front derailleur.This bicycle front derailleur can comprise base component, chain guide portion, coupling assembly, cable guide portion and cable fastening part.Base component can be configured to be installed on cycle frame.Chain guide portion can be pivotally supported between retrieving position and expanded position relative to base component.Expanded position than retrieving position further from cycle frame.Coupling assembly can comprise the first connection part and the second connection part.First connection part can be pivotally connected to base component around the first pivot axis and be pivotally connected to chain guide portion around the second pivot axis.Chain guide portion can be connected pivotally to base component by the second connection part.Be installed in the state of cycle frame at base component, comparable second connection part of the first connection part is further from cycle frame.Cable guide portion is arranged on the first connection part.Cable fastening part is configured to control cable to be fixed on the first connection part, and cable fastening part has and is being not orthogonal to the central axis that the direction of the axial direction of the first pivot axis extends.Cable fastening part is arranged on the first connection part between cable guide portion and the second pivot axis.Thus, relative to traditional front chain shifter, for the end controlling cable fastening part and the first connection part that cable is fixed on the first connection part is kept apart.Therefore, more Multiple level can be formed between cable fastening part and rear tire, avoid cable fastening part and interfere rear tire.
According to the 2nd aspect of the present utility model, the bicycle front derailleur according to the 1st aspect is configured to: cable guide portion can comprise cable guide surface, thus bootable control cable and receive to come from and control the pulling of cable.
According to the 3rd aspect of the present utility model, the bicycle front derailleur according to the 2nd aspect is configured to: cable guide surface can be configured to guide and control cable, to apply to the first connection part the motive force controlling cable.Thus, control cable by cable guide surface produce pull the first connection part pull moment.
According to the 4th aspect of the present utility model, the bicycle front derailleur according to the 1st aspect is configured to: the central axis of cable fastening part can extend on the direction of the axial direction along the first pivot axis.Thus the fixed form of cable fastening part can be more versatile and flexible.
According to the 5th aspect of the present utility model, the bicycle front derailleur according to the 4th aspect is configured to: the central axis of cable fastening part can extend on the direction of axial direction being parallel to the first pivot axis, thus makes the installation of cable fastening part easier.
According to the 6th aspect of the present utility model, bicycle front derailleur according to the 1st aspect is configured to: cable fastening part can comprise instrument and abut (access) part, instrument abutment portion is arranged on the rear surface of the first connection part, be installed in the state of cycle frame at base component, rear surface is towards rear.Thus user can install from rear easily, dismantles or even loosen cable fastening part.
According to the 7th aspect of the present utility model, the bicycle front derailleur according to the 1st aspect is configured to: cable guide portion at least can attach to the first connection part to adjust the guiding route controlling cable with adjusting between primary importance and the second place.Thus the direction controlling the motive force of cable and the moment that pulls produced by the motive force controlling cable are adjusted by the adjustment of guiding route.
According to the 8th aspect of the present utility model, the bicycle front derailleur according to the 7th aspect is configured to: cable guide portion attaches to the first connection part removedly.Thus, easily cable guide portion can be installed on the first connection part.
According to the 9th aspect of the present utility model, bicycle front derailleur according to the either side in the 1 to 8 aspect is configured to: the first connection part can comprise guide recess, and guide recess is arranged on the first connection part for guiding the end controlling cable from cable fastening part.Thus the end controlling cable down, upcountry or up can be guided at the first connection part place.Therefore, can prevent the control end of cable and the shank of rider from interfering.
According to the 10th aspect of the present utility model, be configured to according to the bicycle front derailleur of either side in the 1 to 8 aspect: cable guide portion can be arranged on the first end place of the first connection part, and the second pivot axis is arranged on the second end place of the first connection part, and first end and the second end are toward each other.Thus, can increase control cable motive force relative to the moment of the second pivot axis, and then increase produced by the motive force controlling cable pull moment.
According to the 11st aspect of the present utility model, be configured to: cable guide portion can comprise projection according to the bicycle front derailleur of either side in the 1 to 8 aspect, projection is configured to give prominence to from the first connection part, thus can carry and guide control cable.
According to the 12nd aspect of the present utility model, the bicycle front derailleur according to the 11st aspect is configured to: projection can be configured to give prominence to from the rear surface of the first connection part, and be installed in the state of cycle frame at base component, rear surface is towards rear.Thus the direction that projection is given prominence to is consistent with the direction that cable fastening part is given prominence to, and then can adjust the position of cable guide portion in the first connection part by dismantling or loosening cable fastening part.
According to the 13rd aspect of the present utility model, the bicycle front derailleur according to the 12nd aspect is configured to: the height that the aspect ratio cable fastening part that projection can be given prominence to from rear surface is given prominence to from rear surface is little.Thus, the installation of cable fastening part and cable guide portion can be made mutually to interfere on the one hand, and the operation controlling cable can be made on the other hand can not to be subject to the impact of cable fastening part.
According to the 14th aspect of the present utility model, be configured to: bicycle front derailleur can comprise lid further according to the bicycle front derailleur of either side in the 1 to 8 aspect, cover is configured to control cable to remain on cable guide portion place.Thus, control cable and can be maintained at cable guide portion place, and avoid cable guide portion slippage (slipoutofposition).
According to the 15th aspect of the present utility model, be configured to according to the bicycle front derailleur of either side in the 1 to 8 aspect: cover and attach to the first connection part by cable fastening part.Thus, conveniently lid is fixed on the first connection part.
According to the 16th aspect of the present utility model, be configured to according to the bicycle front derailleur of either side in the 1 to 8 aspect: be installed in the state of cycle frame at base component, the first pivot axis can be arranged on the vertical upper lateral part of the second pivot axis.Thus bicycle front derailleur can be arranged by bottom arrangement (downswingarrangement).
According to the 17th aspect of the present utility model, provide a kind of bicycle front derailleur.This bicycle front derailleur can comprise base component, chain guide portion, coupling assembly, cable guide portion and cable fastening part.Base component can be configured to be installed on cycle frame.Chain guide portion can be pivotally supported between retrieving position and expanded position relative to base component, and the comparable retrieving position of expanded position is further from cycle frame.Coupling assembly can comprise the first connection part and the second connection part.First connection part can be pivotally connected to base component around the first pivot axis and be pivotally connected to chain guide portion around the second pivot axis.Chain guide portion can be connected pivotally to base component by the second connection part.Be installed in the state of cycle frame at base component, comparable second connection part of the first connection part is further from cycle frame.Cable guide portion can be arranged on the first connection part.Cable guide portion at least can attach to the first connection part with adjusting between primary importance and the second place.Cable fastening part is configured to control cable to be fixed on the first connection part.Cable fastening part is arranged on the first connection part between cable guide portion and the second pivot axis.Thus, relative to traditional front chain shifter, for the end controlling cable fastening part and the first connection part that cable is fixed on the first connection part is kept apart.Therefore, more Multiple level can be formed between tire and cable fastening part.
According to the 18th aspect of the present utility model, the bicycle front derailleur according to the 17th aspect is configured to: cable guide portion attaches to the first connection part removedly.Thus, conveniently cable guide portion is fixed on the first connection part.
Compared to traditional front chain shifter, according to bicycle front derailleur of the present utility model, by the cable fastening part being used for control cable to be fixed on connection part is arranged to spaced apart with one end relative with the second pivot axis of connection part, more Multiple level can be formed between rear tire and cable fastening part, prevent cable fastening part to interfere the tire of trailing wheel.
In addition, cable guide portion is set to the one end relative with the second pivot axis closer to connection part, thus can increase control cable motive force produce pull moment.Therefore, cable fastener can be arranged on the below of cable guide portion, thus can increase the gap between rear tire and cable fastening part, prevents cable fastening part to interfere the tire of trailing wheel further.
In addition, according to this structure of the present utility model, the end controlling cable is guided downwards, inwardly or up at the first connection part, therefore prevents the shank of this interfere in ends rider controlling cable.
Accompanying drawing explanation
Accompanying drawing forms the part of this specification sheets, understands the utility model further for helping.Accompanying drawing illustrates embodiment of the present utility model, and is used for principle of the present utility model is described together with specification sheets.The identical label of parts identical in the accompanying drawings represents.Shown in the drawings of:
Fig. 1 is the lateral plan of the bicycle of the bicycle front derailleur be equipped with according to the utility model embodiment.
Fig. 2 is the rear perspective view of the bicycle front derailleur according to the utility model embodiment.
Fig. 3 is the back view of the first connection part of bicycle front derailleur according to the utility model embodiment, wherein the first connection part is provided with cable guide portion, cable fastening part and lid.
Fig. 4 is the partial perspective view of Fig. 3.
Fig. 5 is the sectional perspective exploded drawings of Fig. 3.
Fig. 6 is the view corresponding with Fig. 3, wherein for the sake of clarity remove lid, and cable guide portion is positioned at primary importance.
Fig. 7 is the view corresponding with Fig. 3, wherein for the sake of clarity remove lid, and guide portion is positioned at the second place.
Detailed description of the invention
Describe by the embodiment selected referring now to accompanying drawing.By the disclosure, be apparent that to those skilled in the art, the following description of embodiment is provided just to casehistory, instead of in order to limit the utility model, the utility model limited by appended claim and equivalent thereof.
First the lateral plan of the bicycle 10 of the bicycle front derailleur (hereinafter referred front chain shifter) 20 be equipped with according to the utility model embodiment is shown with reference to Fig. 1, Fig. 1.In this embodiment, bicycle 10 is a kind of road cycling, and it comprises cycle frame 11, is installed on the front fork 12 of cycle frame 11, is installed on the handle assembly 13 on the top of front fork 12, is rotatably attached to the front-wheel 14F of the bottom of front fork 12, the trailing wheel 14R being rotatably attached to the rear portion of cycle frame 11, chain 15, crank assemblies 16 and Rear Derailleur 17.Tire TF attaches to front-wheel 14F, and tire TR attaches to trailing wheel 14R.
Front-wheel brake 18F is arranged for braking front-wheel 14F, and rear wheel brake 18R is arranged for braking rear-wheel 14R.On the left end that known compound type braking/shift control apparatus 19L and 19R is arranged on handle assembly 13 respectively in a usual manner and right-hand member.The brake rod part being positioned at the braking/shift control apparatus 19L on the left side of handlebar assembly 13 is connected to front-wheel brake 18F, for braking front-wheel 14F by the rich control cable B1 stepping on (Bowden) cable form.The brake rod part being positioned at the braking/shift control apparatus 19R on the right side of handlebar assembly 13 is connected to rear wheel brake 18R, for braking rear-wheel 14R by the rich control cable B2 stepping on cable form.
Crank assemblies 16 is attached to the lower middle portion of cycle frame 11 or the machine assembly of bottom bracket, for the propulsive effort produced by rider is delivered to Rear Derailleur 17 via chain 15.Sprocket wheel G2 and gear crank C before sprocket wheel G1, second before crank assemblies 16 comprises first.Front chain shifter 20 is connected to the gear level part of braking/shift control apparatus 19L by the rich control cable B3 stepping on cable form.By optionally pulling and the interior lines B31 of release control cable B3 (shown in broken lines in Fig. 3-6), sprocket wheel G1 and G2 before chain 15 is optionally switched to first and second by front chain shifter 20.Before first and second, sprocket wheel G1 and G2 is arranged on the gear crank C that rotatably driven by pedal P, and before first, sprocket wheel G1 can have the tooth and little diameter that before than second, sprocket wheel G2 is few.
The propulsive effort transmitted by chain 15 is delivered to trailing wheel 14R by Rear Derailleur 17.Rear Derailleur 17 comprises multiple rear sprocket wheel R and rear derailleur 30.Rear derailleur 30 is connected to the gear level part of braking/shift control apparatus 19R by the rich control cable B4 stepping on cable form, so as to pass through optionally to pull and release control cable B4 interior lines (not shown) and make rear derailleur 30 optionally switch chain 15 between rear sprocket wheel R.The plurality of rear sprocket wheel R is installed on the hub portion of trailing wheel 14R with one heart, and the plurality of rear sprocket wheel R can have different teeth and diameter.
Below, composition graphs 2-6 describes the front chain shifter 20 according to the utility model embodiment in detail.
See Fig. 2, front chain shifter 20 comprises base component 21, chain guide portion 22, coupling assembly.
Base component 21 is configured to be installed on cycle frame 11.More specifically, base component 21 can be installed on the seat pipe 112 (see Fig. 1) of cycle frame 11.As shown in Figure 2, base component 21 can be endless belt-shaped fixture, and it is anchored on a pipe 112 around ground by fastener 211.Fastener 211 can be such as bolt etc.
Chain guide portion 22 is supported by coupling assembly (will describe in detail below).Chain guide portion 22 is pivotally supported between retrieving position and expanded position relative to base component 21, expanded position than retrieving position further from cycle frame 11.Chain guide portion 22 by moving between retrieving position and expanded position, thus by chain 34 in the past sprocket wheel G1 be directed to front sprocket wheel G2 or vice versa.Chain guide portion 22 can be formed at and guide chain 34 more than between three front sprocket wheels.
Coupling assembly comprises the first connection part 23 and the second connection part 24.First connection part 23 is pivotally connected to base component 21 around the first pivot axis X1 and is pivotally connected to chain guide portion 22 around the second pivot axis X2.Chain guide portion 22 is connected pivotally to base component 21 by the second connection part 24.More specifically, the second connection part 24 is pivotally connected to base component 21 around the 3rd pivot axis X3 and is pivotally connected to chain guide portion 22 around the 4th pivot axis X4, thus chain guide portion 22 is connected pivotally to base component 21.As shown in Figure 2, be installed in the state of cycle frame 11 at base component 21, the first connection part 23 to the second connection part 24 is further from cycle frame 11.
In this embodiment, as shown in Figure 2, when observing along the above-mentioned pivot axis of the first connection part 23 and the second connection part 24, base component 21, first connection part 23, chain guide portion 22 and the second connection part 24 define four-bar linkage, and wherein this four-bar linkage can be limited by the first pivot axis X1, the second pivot axis X2, the 3rd pivot axis X3, the 4th pivot axis X4.As will be explained below, first connection part 23 by by optionally pulling and the interior lines B31 (Fig. 3-6) of release control cable B3 and around the first pivot axis X1 and the second pivot axis X2 pivotable, thus activates the second connection part 24 and chain guide portion 22 around the first pivot axis X3 and the second pivot axis X4 pivotable.Therefore, achieve chain guide portion 22 and move between the retrieving position of cycle frame 11 and the expanded position away from cycle frame 11 close relative to base component 21, thus sprocket wheel G1 and G2 before chain 15 is optionally switched to first and second.
Preferably, be installed in the state of cycle frame 11 at base component 21, the first pivot axis X1 is arranged on the vertical upper lateral part of the second pivot axis X2, thus front chain shifter 20 can be arranged by bottom arrangement.
With reference to Fig. 3-6, control cable B3 to guide and control cable B3 be fixed on the first connection part 23 thus by optionally pulling and the interior lines B31 of release control cable B3 and activate the first connection part 23, front chain shifter 20 also comprises cable guide portion 231 and cable fastening part 232.Preferably, front chain shifter 20 also can comprise lid 233.Below, to cable guide portion 231, cable fastening part 232 and lid 233 structure be described in detail.
Cable guide portion 231 is arranged on the first connection part 23, and controls cable B3 (more specifically, guiding the interior lines B31 controlling cable B3) for guiding.
As Figure 4-Figure 6, cable guide portion 231 can comprise positioning seat 236 and integrally from the projection 237 that positioning seat 236 is outstanding.Positioning seat 236 attaches in the first connection part 23.Specifically, positioning seat 236 can be fixed in the detent 238 in the rear surface being formed at the first connection part 23, thus whole cable guide portion 231 can be fixed on the first connection part 23.
Be fixed in the state of the first connection part 23 at cable guide portion 231, projection 237 is configured to give prominence to from the first connection part 23.In the present embodiment, projection 237 adopts the form of pin.But the form of projection 237 is not limited to this.
More preferably, projection 237 can be configured to give prominence to from the rear surface of the first connection part 23, thus as seen in figures 3-6, projection 237 can support and guide the interior lines B31 controlling cable B3.
In the present embodiment, " rear surface " mentioned refers to the surface towards bicycle 10 rear of first connection part 23 under the normal state used of the bicycle 10 with front chain shifter 20.In other words, be installed in the state of cycle frame 11 at base component 21, this rear surface is towards rear.
In the present embodiment, direction term "front", "rear", " forward ", " backward ", "left", "right", " transverse direction ", " upwards " and " downwards " and other similar direction term any refer to based on the vehicle seat 111 of such as riding the bicycle 10 be seated at as shown in Figure 1 and towards the rider of handlebar assembly 13 and the direction determined.Therefore, when using these terms to describe front chain shifter 20, these terms should be explained relative to the bicycle used in upright ride position in the horizontal plane as shown in Figure 1.
It should be noted that, projection 237 can be selected as required from the direction that the first connection part 23 is outstanding.Projection 237 can project upwards in the side of the axial direction being not orthogonal to the first pivot axis X1.Such as, the central axis (not shown) of projection 237 can extend (such as, the central axis of projection 237 can extend on the direction at angle of the axial direction relative to the first pivot axis X1) on the direction of the axial direction along the first pivot axis X1.But consider the convenience to the guiding controlling cable B3, the central axis of projection 237 can extend on the direction of axial direction being parallel to the first pivot axis X1.
Cable guide portion 231 comprises cable guide surface S.Cable guide surface S is configured to guide and controls cable B3, to apply to the first connection part 23 the motive force F controlling cable B3.That is, cable guide surface S herein refers to such surface of cable guide portion 231, that is, this surface contact controls cable B3 and receives the motive force F controlling cable B3 upon actuation.In the present embodiment, cable guide surface S can be the outer surface of projection 237.When projection 237 is the form of pin, cable guide surface S can be the outer cylinder surface of pin.
As shown in the figures, cable guide portion 231 is arranged on the first end E1 place of the first connection part 23, and the second pivot axis X2 is arranged on the second end E2 place of the first connection part 23, and first end E1 and the second end E2 toward each other.Be appreciated that this set can increase the arm of force of motive force F relative to the second pivot axis X2, thus add produced by the motive force F controlling cable B3 pull moment.Therefore, cable fastener can be arranged on the below of cable guide portion 231, this makes to form more Multiple level between cable fastening part 232 (will be described in more detail below) and the tire TR of trailing wheel 14R, thus the problem of interference between the tire TR avoiding cable fastening part 232 and trailing wheel 14R.
Cable guide portion 231 at least can attach to the first connection part 23 to adjust the guiding route controlling cable B3 with adjusting between primary importance and the second place.By the adjustment of guiding route, the direction controlling the motive force F of cable B3 and the moment that pulls produced by the motive force F controlling cable B3 can be adjusted.
The primary importance of cable guide portion 231 in detent 238 and the second place can carry out arranging and adjusting as required.Such as, the primary importance of cable guide portion 231 in detent 238 can be as shown in Figure 6.In this primary importance, control first guiding route of interior lines B31 through being limited by cable fastening part 232, guide recess 234 (will be described below) and projection 237 of cable B3.By changing the position of cable guide portion 231 in detent 238 (such as, changing the angle of cable guide portion 231 relative to detent 238), the second place of cable guide portion 231 in detent 238 can be set.Such as, the described second place can be as shown in Figure 7.In this second place, control second guiding route of interior lines B31 through being limited by cable fastening part 232, guide recess 234 (will be described below) and the projection 237 after changing position of cable B3.The position of cable guide portion 231 can adjust between the position different more than three.
Preferably, cable guide portion 231 attaches to the first connection part 23 removedly, thus conveniently cable guide portion 231 is installed on the first connection part 23 or removes from the first connection part 23, such as to adjust the position of cable guide portion 231 in detent 238.But cable guide portion 231 can adopt other type being different from this removable type.Such as cable guide portion 231 can be removable type, thus can when cable guide portion 231 is not removed from the first connection part 23 mobile cable guide portion 231, such as to change the position of cable guide portion 231 between the first location and the second location.
Cable fastening part 232 is configured to control cable B3 to be fixed on the first connection part 23.For example, see Fig. 6, an end B32 of the interior lines B31 controlling cable B3 can fix in place by cable fastening part 232.Thus, when pull from the other end (not shown) contrary with end B32 of the interior lines B31 controlling cable B3 or the interior lines B31 of release control cable B3 time, the motive force F of interior lines B31 acts on the S of cable guide surface and then activates the first connection part 23, thus realizes the switching of chain 15 before first and second between sprocket wheel G1 and G2 by front chain shifter 20.Preferably, as shown in Figure 5, cable fastening part 232 can be made up of the screw and nut cooperatively interacted.
Cable fastening part 232 has central axis X 5.Central axis X 5 can extend on the direction of axial direction being not orthogonal to the first pivot axis X1.Such as, the central axis X 5 of cable fastening part 232 can extend (such as, the central axis X 5 of cable fastening part 232 can extend relative on axial direction inclination at angle (slanted) direction of the first pivot axis X1) on the direction of the axial direction along the first pivot axis X1.But alternatively, consider the convenience of the installation of cable fastening part 232, the central axis X 5 of cable fastening part 232 can preferably extend on the direction of axial direction being parallel to the first pivot axis X1.Certainly, the bearing of trend of cable fastening part 232 is not limited to this, and those skilled in the art can arrange the bearing of trend of cable fastening part 232 as required.
Cable fastening part 232 is arranged on the first connection part 23 between cable guide portion 231 and the second pivot axis X2.Therefore, according to the utility model, for the end (in the present embodiment, this end is end E1) controlling cable fastening part 232 and the first connection part 23 that cable B3 is fixed on the first connection part 23 is kept apart.Therefore, compared to traditional front chain shifter, more Multiple level can be formed between cable fastening part 232 and the tire TR of trailing wheel 14R, thus the problem of interference between the tire TR that further avoid cable fastening part 232 and trailing wheel 14R.
As mentioned above, cable fastening part 232 can be arranged between cable guide portion 231 and the second pivot axis X2.In practice, the setting position of cable fastening part 232 can have multiple choices.Such as, cable fastening part 232 can be arranged between the first pivot axis X1 and the second pivot axis X2.But preferably, as shown in figure, cable fastening part 232 can be arranged between cable guide portion 231 and the first pivot axis X1.
In addition, as shown in the figure, cable fastening part 232 comprises instrument abutment portion 235.Instrument abutment portion 235 is arranged on the rear surface of the first connection part 23.As described earlier, " rear surface " herein also refers to the surface at the rear towards bicycle 10 of the first connection part 23 under the state normally used at front chain shifter 20.In other words, be installed at base component 21 in the state of cycle frame 11, rear surface is towards rear.
The setting of instrument abutment portion 235 can make, be installed in the state of cycle frame 11 at base component 21, user can install from rear, dismantle or even loosen cable fastening part 232, such as to adjust the position (such as adjusting cable guide portion 231 between above-mentioned primary importance and the second place) of the cable guide portion 231 of the rear surface being installed on the first connection part 23 equally, thus convenient adjustment controls the guiding route of cable B3, and without the need to pulling down whole front chain shifter 20.
In order to avoid the installation of cable fastening part 232 and cable guide portion 231 is interfered mutually, the height that the aspect ratio cable fastening part 232 can being arranged to projection 237 is given prominence to from rear surface is given prominence to from rear surface is little.By such setting, the operation controlling cable B3 also can be made can not to be subject to the impact of cable fastening part 232.In addition, such setting also can avoid the interference between the tire TR of cable guide portion 231 and trailing wheel 14R.
In order to guide and retentive control cable B3, the first connection part 23 also can comprise guide recess 234.Guide recess 234 is arranged on the first connection part 23 for guiding the end B32 controlling cable B3 from cable fastening part 232.As in Fig. 6 be clearly shown that, in the present embodiment, guide recess 234 is arranged on the rear surface of the first connection part 23, and down extends in the side of cable fastening part 232.Therefore, compared to the front chain shifter of prior art, the end B32 controlling cable B3 is down guided, thus can prevent the shank of end B32 and rider from interfering.
Certainly, guide recess 234 can also adopt other any arrangement that can prevent the shank of end B32 and rider from interfering.Such as, guide recess 234 can be configured to control end B32 upcountry (that is, towards the direction close to cycle frame 11) guiding of cable B3.Alternatively, guide recess 234 can be configured to the end B32 controlling cable B3 up to guide.
By above-mentioned cable guide portion 231, cable fastening part 232 and guide recess 234, the guiding route controlling cable B3 can be limited.As shown in Figure 6, control cable B3 (particularly, control the interior lines B31 of cable B3) be directed into projection 237 from the outside of the first connection part 23, supported by projection 237 subsequently and be directed in the guide recess 234 of the first connection part 23, and end B32 is fixed by cable fastening part 232.
In addition, as being clearly shown that in Figure 4 and 5, front chain shifter 20 can comprise lid 233 further.Lid 233 is configured to control cable B1 to remain on cable guide portion 231 place, thus can avoid controlling cable B3 and cable guide portion 231 slippage.Lid 233 attaches to the first connection part 23 by cable fastening part 232.
In sum, describe front chain shifter 20 of the present utility model by reference to the accompanying drawings, it can increase the gap between the tire TR of trailing wheel 14R and cable fastening part 232, thus prevents cable fastening part 232 to interfere the tire TR of trailing wheel 14R.
Although more than describe with reference to the accompanying drawings according to embodiments more of the present utility model, the utility model is not limited to this.Such as, although the utility model is described for the road cycling shown in Fig. 1, bicycle 10 is not limited to this.Such as, the utility model can also be applied to the bicycle of mountain bike or any type.
When understanding scope of the present utility model, as used in this article, the term that term " comprises " and derivatives is intended to for opening, the term of these openings illustrate specify feature, element, parts, set, entirety and/or step existence, but do not get rid of and there is other unspecified feature, element, parts, set, entirety and/or step.Foregoing teachings is also applicable to the term with similar meaning, and such as term " comprises ", " having " and their derivatives.Similarly, term " parts ", " part ", " portion ", " element " or " part " can have the double meaning of single parts or multiple parts when used in a singular form.Therefore, in time being used to describe bicycle front derailleur, the bicycle being equipped with bicycle front derailleur when these terms should be used relative to normal ride position is explained.Finally, the same as used herein, the term of degree, such as " substantially ", " approximately " and " probably ", mean that the deviation of the fair amount of adorned term makes net result that larger change not occur.
Casehistory the utility model is carried out by the embodiment selected although only pick out, but to those skilled in the art, obviously do various changes and modifications here by the disclosure, and do not deviate from as in the following claims the scope of the present utility model that limits.Such as, the size of various element, shape, position or orientation can change as needed and/or desired.Be shown as the element being connected to each other directly or contacting and intermediate structure can be set between which.The function of an element can be performed by two elements, and vice versa.The 26S Proteasome Structure and Function of an embodiment can be used in another embodiment.All advantages need not be made to be present in a specific embodiment all simultaneously.Relative to each feature unique prior art individually or with further feature combined use time also should be considered to by the independent description of applicant to other utility model, comprise the structure implemented by this feature or these features and/or function is conceived.Therefore, to provide being only used to casehistory according to the description of embodiment of the present utility model above, instead of in order to limit the utility model of claim as appended and equivalents thereof.
Claims (18)
1. a bicycle front derailleur, is characterized in that, described bicycle front derailleur (20) comprising:
Base component (21), is configured to be installed on cycle frame (11);
Chain guide portion (22), is pivotally supported between retrieving position and expanded position relative to described base component (21), described expanded position than described retrieving position further from described cycle frame (11);
Coupling assembly, comprise the first connection part (23) and the second connection part (24), described first connection part (23) is pivotally connected to described base component (21) around the first pivot axis (X1), and be pivotally connected to described chain guide portion (22) around the second pivot axis (X2), described chain guide portion (22) is connected pivotally to described base component (21) by described second connection part (24), be installed in the state of described cycle frame (11) at described base component (21), described first connection part (23) than described second connection part (24) further from described cycle frame (11),
Cable guide portion (231), is arranged on described first connection part (23); And
Cable fastening part (232), control cable (B3) is configured to be fixed on described first connection part (23), described cable fastening part (232) has and is being not orthogonal to the central axis (X5) that the direction of the axial direction of described first pivot axis (X1) extends, and described cable fastening part (232) is arranged on described first connection part (23) between described cable guide portion (231) and described second pivot axis (X2).
2. bicycle front derailleur according to claim 1, is characterized in that,
Described cable guide portion (231) comprises cable guide surface (S).
3. bicycle front derailleur according to claim 2, is characterized in that,
Described cable guide surface (S) is configured to guide described control cable (B3), to apply the motive force (F) of described control cable (B3) to described first connection part (23).
4. bicycle front derailleur according to claim 1, is characterized in that,
The described central axis (X5) of described cable fastening part (232) extends on the direction of the described axial direction along described first pivot axis (X1).
5. bicycle front derailleur according to claim 4, is characterized in that,
The described central axis (X5) of described cable fastening part (232) extends on the direction of described axial direction being parallel to described first pivot axis (X1).
6. bicycle front derailleur according to claim 1, is characterized in that,
Described cable fastening part (232) comprises instrument abutment portion (235), described instrument abutment portion (235) is arranged on the rear surface of described first connection part (23), be installed in the state of described cycle frame (11) at described base component (21), described rear surface is towards rear.
7. bicycle front derailleur according to claim 1, is characterized in that,
Described cable guide portion (231) at least can attach to described first connection part (23) to adjust the guiding route of described control cable (B3) with adjusting between primary importance and the second place.
8. bicycle front derailleur according to claim 7, is characterized in that,
Described cable guide portion (231) attaches to described first connection part (23) removedly.
9. bicycle front derailleur according to any one of claim 1 to 8, is characterized in that,
Described first connection part (23) comprises guide recess (234), and described guide recess (234) is arranged on described first connection part (23) for the end (B32) guiding described control cable (B3) from described cable fastening part (232).
10. bicycle front derailleur according to any one of claim 1 to 8, is characterized in that,
Described cable guide portion (231) is arranged on first end (E1) place of described first connection part (23), and described second pivot axis (X2) is arranged on the second end (E2) place of described first connection part (23), described first end (E1) and described second end (E2) are toward each other.
11. bicycle front derailleurs according to any one of claim 1 to 8, is characterized in that,
Described cable guide portion (231) comprises projection (237), and described projection (237) is configured to give prominence to from described first connection part (23).
12. bicycle front derailleurs according to claim 11, is characterized in that,
Described projection (237) is configured to give prominence to from the rear surface of described first connection part (23), be installed in the state of described cycle frame (11) at described base component (21), described rear surface is towards rear.
13. bicycle front derailleurs according to claim 12, is characterized in that,
Described projection (237) is little from the height that cable fastening part (232) described in the outstanding aspect ratio in described rear surface is outstanding from described rear surface.
14. bicycle front derailleurs according to any one of claim 1 to 8, is characterized in that, described bicycle front derailleur (20) comprises further:
Lid (233), described lid (233) is configured to described control cable (B3) to remain on described cable guide portion (231) place.
15. bicycle front derailleurs according to any one of claim 1 to 8, is characterized in that,
Lid (233) attaches to described first connection part (23) by described cable fastening part (232).
16. bicycle front derailleurs according to any one of claim 1 to 8, is characterized in that,
Be installed in the state of described cycle frame (11) at described base component (21), described first pivot axis (X1) is arranged on the vertical upper lateral part of described second pivot axis (X2).
17. 1 kinds of bicycle front derailleurs, is characterized in that, described bicycle front derailleur (20) comprising:
Base component (21), is configured to be installed on cycle frame (11);
Chain guide portion (22), is pivotally supported between retrieving position and expanded position relative to described base component (21), described expanded position than described retrieving position further from described cycle frame (11);
Coupling assembly, comprise the first connection part (23) and the second connection part (24), described first connection part (23) is pivotally connected to described base component (21) around the first pivot axis (X1), and be pivotally connected to described chain guide portion (22) around the second pivot axis (X2), described chain guide portion (22) is connected pivotally to described base component (21) by described second connection part (24), be installed in the state of described cycle frame (11) at described base component (21), described first connection part (23) than described second connection part (24) further from described cycle frame (11),
Cable guide portion (231), be arranged on described first connection part (23), described cable guide portion (231) at least can attach to described first connection part (23) between primary importance and the second place with adjusting; And
Cable fastening part (232), be configured to control cable (B3) to be fixed on described first connection part (23), described cable fastening part (232) is arranged on described first connection part (23) between described cable guide portion (231) and described second pivot axis (X2).
18. bicycle front derailleurs according to claim 17, is characterized in that,
Described cable guide portion (231) attaches to described first connection part (23) removedly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520772771.2U CN205034288U (en) | 2015-09-30 | 2015-09-30 | Bicycle front derailleur |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520772771.2U CN205034288U (en) | 2015-09-30 | 2015-09-30 | Bicycle front derailleur |
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| CN205034288U true CN205034288U (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520772771.2U Active CN205034288U (en) | 2015-09-30 | 2015-09-30 | Bicycle front derailleur |
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| CN (1) | CN205034288U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108407966A (en) * | 2017-02-09 | 2018-08-17 | 株式会社岛野 | Bicycle front derailleur |
| CN112141259A (en) * | 2016-09-30 | 2020-12-29 | 株式会社岛野 | Bicycle chain puller |
| CN114162251A (en) * | 2020-09-11 | 2022-03-11 | 株式会社岛野 | Bicycle chain puller |
-
2015
- 2015-09-30 CN CN201520772771.2U patent/CN205034288U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112141259A (en) * | 2016-09-30 | 2020-12-29 | 株式会社岛野 | Bicycle chain puller |
| CN112141259B (en) * | 2016-09-30 | 2022-04-08 | 株式会社岛野 | Bicycle chain puller |
| CN108407966A (en) * | 2017-02-09 | 2018-08-17 | 株式会社岛野 | Bicycle front derailleur |
| CN114162251A (en) * | 2020-09-11 | 2022-03-11 | 株式会社岛野 | Bicycle chain puller |
| CN114162251B (en) * | 2020-09-11 | 2023-11-28 | 株式会社岛野 | bicycle derailleur |
| US11981398B2 (en) | 2020-09-11 | 2024-05-14 | Shimano Inc. | Bicycle derailleur |
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