CN2818315Y

CN2818315Y - Speed-adjuster of rotary handlebar of bicycle

Info

Publication number: CN2818315Y
Application number: CN 200520014268
Authority: CN
Inventors: 周名岳
Original assignee: SAIGUAN VEHICLE INDUSTRY Co Ltd NINGBO
Current assignee: SAIGUAN VEHICLE INDUSTRY Co Ltd NINGBO
Priority date: 2005-08-18
Filing date: 2005-08-18
Publication date: 2006-09-20
Anticipated expiration: 2015-08-18

Abstract

The utility model relates to a speed adjuster, particularly to a speed adjuster of a rotary handlebar of a speed variable bicycle. The speed adjuster of a rotary handlebar of a bicycle comprises a base, a rotary handlebar, a traction element and a stroke positioning mechanism for adjusting the traction element. The utility model is characterized in that the stroke positioning mechanism is matched with the rotary handlebar. The stroke positioning mechanism comprises a stroke wheel of a tension spring, an elastic ratchet pawl whose tail end is fixed on the stroke wheel, and an inner ratchet loop which is arranged on the base and matched with the elastic ratchet pawl. Aiming at the problem that an inner ratchet of the prior art is easy to abrade, which makes speed changing become inaccurate, and a complete set of adjuster is replaced when the inner ratchet is damaged, so the adjuster is complicated and not economic, and the gear position is displayed indistinctly. The utility model provides a speed adjuster of a rotary handlebar of a bicycle, which has labor-saving operation, stable and light gear changing, accurate positioning, convenient replacement for easily-worn parts and low manufacturing cost. A gear position display device on the speed adjuster of a rotary handlebar of a bicycle is further improved, so the gear position is displayed distinctly, visually and accurately.

Description

Bicycle handle governor

[affiliated technical field]

The utility model relates to a kind of speed setting controller, relates in particular to a kind of variable speed bicycle handle speed setting controller.

[background technology]

Existing variable speed bicycle handle speed setting controller, the mesh ratchet gear pair was done the traverse location in its traverse detent mechanism adopted usually, its location set-up mode has two kinds: a kind of locate mode is to rotate handgrip to cooperate with pedestal, this rotation handgrip contains interior ratchet, traverse radius of curvature ring, interior ratchet directly is formed at and rotates on the handgrip, and the location ratchet that cooperates with interior ratchet is arranged on the pawl base in the pedestal, and pawl base can be made one group of chain " leading amount " for ratchet and moves; Another kind of locate mode is that interior ratchet is arranged on the base internal wall, the location ratchet is arranged on the traverse wheel, traverse wheel outer rim is provided with traverse radius of curvature ring, its male splines cooperates with the female splines that rotates handgrip, the pawl base lateral surface be provided with one with the projection of click-fit, and pawl base can be made one group of chain " leading amount " for ratchet and moves.In two kinds of above-mentioned locate modes, because ratchet is with being with the steel bending to make, when moving back grade speed change, operate effort greatly because of moment, it is not steady to drive a vehicle when causing speed change, has certain potential safety hazard, and the time one is of a specified duration, and interior ratchet is easy to wear, makes speed change inaccurate.In case if the damage to change a whole set of controller, not only loaded down with trivial details but also uneconomical.

In addition, the gear display mode of existing variable speed bicycle handle speed setting controller generally has two kinds: a kind of is with lacquer China ink printing mark tooth position on the rotation handgrip of variable speed bicycle handle speed setting controller and pedestal respectively, different corresponding relations by sign tooth position show different gears, its shortcoming is, tooth bit-identify with the lacquer ink print, be positioned at the side, not eye-catching, be difficult for identification and enamelled coating and easily disappear because of friction; Another kind of gear display mode then is to scribe corresponding gear sign on the tumbler of variable speed bicycle handle speed setting controller, observe the gear sign with the identification gear by the gear display window on the speed setting controller pedestal, its shortcoming is, display window is positioned at the side, window area is limited, is difficult for observing.

[utility model content]

The purpose of this utility model is to overcome the above-mentioned shortcoming of variable speed bicycle handle speed setting controller traverse detent mechanism, provide that a kind of rapid operation, gear shift are steadily brisk, accurate positioning, the bicycle handle governor that be convenient to change high-mortality parts simultaneously, reduces manufacturing cost.The further purpose of the utility model is the gear display device that improves on the bicycle handle governor, makes the gear can clear, intuitive and accurate demonstration.

The technical scheme that the prior art problem that solves the utility model is adopted is: bicycle handle governor, comprise pedestal, rotation handgrip, traction element and the traverse detent mechanism of regulating traction element, it is characterized in that, described traverse detent mechanism with rotate handgrip and cooperate, it comprises elastic pawl that the traverse wheel, the tail end that are provided with tension spring be fixed on traverse and take turns, is arranged on the pedestal and the inner ratchet ring that cooperates with elastic pawl; Described traverse wheel places on the tubular axis of pedestal, and the one side is provided with " C " shape groove that is used to place tension spring, and described elastic pawl inlay card is by " C " shape groove; The centre of traverse wheel is provided with a traverse radius of curvature ring, and described traction element is around being arranged in the traverse radius of curvature ring, and draws through the travel adjustment of being located on the pedestal; Described pedestal inner chamber is provided with the draw-in groove of symmetry, and inner ratchet ring places between the draw-in groove; Described handle be provided with a protruding bearing and a paw fond of gossip, described protruding bearing cooperates with tension spring on being located at traverse wheel, described paw is fond of gossip to be cooperated with elastic pawl.

At interior ratchet in the prior art all is to be formed on pedestal or the rotation handgrip, if any wearing and tearing, can only change the situation of whole pedestal or rotation handgrip, the utility model is provided with an inner ratchet ring separately, it is installed between the two adherent draw-in grooves of pedestal inner chamber, and between two draw-in grooves, leave the limit range that certain Gong inner ratchet ring moves, make inner ratchet ring in two draw-in grooves, move one group of chain " leading amount " along circumferentially drawing, so make in grade speed change chain on flywheel, locate rapidly, accurate.Because inner ratchet ring is made separately and is formed, not only be convenient to change, keep in repair and make, also can avoid occurring because failsafety need be changed the problem of whole pedestal or rotation handgrip, also increased simultaneously the commonality of whole pedestal, it can have been cooperated with different inner ratchet rings realize different speed adjustable ranges; On the traverse wheel, a tension spring is set, when the rotation handgrip advances shelves, insert tension spring inner chamber and compressive tension spring by the small column on the protruding bearing on it, make the certain elastic force of its savings, form a ratchet force closure release gear, when moving back grade, can overcome the elastic force of ratchet by the elastic force of tension spring, be convenient to rapidly, the labour-saving regulation stall.

Described tension spring is a cylindroid helical-coil compression spring, a retaining contact matching of one end and " C " shape groove, and the other end cooperates with protruding bearing on the rotation handgrip.

Angle between described outlet elbow and pedestal are axial is 15 degree.Help improving steel cable cabling friction drag.

Described travel adjustment is one the helix outlet elbow of pitch to be arranged.Can finely tune the elasticity of traction element by regulating pitch.

Described paw head fond of gossip has a cammed surface.Increase the paw working area with elastic pawl fond of gossip, prevented the outstanding and influence cooperation between the two of paw driving surface fond of gossip.

Described pedestal is provided with a pointer gear display device, comprise gear display panel, pointer and dual gear, described pointer bottom is passed the gear display panel and is formed a gear part, dual gear forms a driven tooth that cooperates with gear part at first, second forms a driving tooth, this driving tooth and the interlock of traverse wheel.On existing handle speed setting controller, increase the one-level gear transmission, when making the action of traverse wheel, the action of drive dual gear, drive the gear part action of pointer simultaneously by dual gear, pointer is done corresponding rotation on the gear display panel, make the residing gear of governor can visual and clear being read out on the gear display panel.

Described gear display panel is provided with a transparent cover.Can waterproof and dustproof, also can prevent accidental impact.

Offer an axis hole in the middle of the gear part of described pointer, cooperate with the jack-post of pedestal.

Offer a deep-slotted chip breaker that supplies jack-post to pass on the described dual gear.Jack-post passes deep-slotted chip breaker, the rotational angle of restriction dual gear.

Major advantage of the present utility model is embodied in respectively: 1, " three change " requirement that meets normalisation, universalization, seriation is set in the axial hub of pedestal, can implement the equipped interchangeable inner ratchet ring of (6 grades, 7 grades, 8 grades) required specification, reduce the quantity of mould assembling like this, save mould-manufacturing man-hour, reduce cost, shortened the trial-produce period of new product exponentially.2, inner ratchet ring influences the accurate location of elastic pawl if any wearing and tearing, can change separately.3, inner ratchet ring and elastic pawl tooth engagement radius of curvature is big, and be provided with inner ratchet ring and in limit range, can come and go to draw and move one group of chain " leading amount ", and then, make in grade speed change that chain locate rapidly, accurate, noiseless on flywheel.4, the ratchet that is fixed on the traverse wheel is realized with the sealing of inner ratch gear engagement force more reliable.5, be provided with ratchet force closure release gear in the traverse detent mechanism, when moving back grade speed change, rotate handgrip handle moment and reduce, thereby reach more brisk, steady, the comfortable effect of operation, interior ratchet wear and tear because of ratchet is force-closed when having avoided moving back grade speed change.6, increase the one-level gear transmission on traverse wheel, utilize the gear matched characteristic of accurate, the corresponding relation by different numerical value on pointer and the gear display panel can show the residing gear of variable speed bicycle accurate, clear, intuitively.

Below in conjunction with the drawings and specific embodiments the utility model is further described.

[description of drawings]

Fig. 1 is the utility model structural representation;

Fig. 2 is the A-A cutaway view of Fig. 1;

Fig. 3 is the B-B cutaway view of Fig. 1;

Fig. 4 is that the K of Fig. 2 is to cutaway view.

Among the figure: 1, pedestal; 2, fixing clamping ring; 3, screw; 4, traverse wheel; 5, inner ratch gear; 6, elastic pawl; 7, steel cable; 8, tension spring; 9, rotate handgrip; 10, grip; 11 lock tubes; 12, dual gear; 13, gear display panel; 14, pointer; 15, transparent cover; 16, fine-tuning nut; 17, outlet elbow.

[specific embodiment]

Shown in Fig. 1 to 4, bicycle handle governor, comprise pedestal 1, traverse detent mechanism and gear display device, be provided with a tubular axis that is used for the socket handlebar in the hub of pedestal 1, its head is provided with and can governor be fixed in fixedly clamping ring 2 on the handlebar by screw 3, afterbody is provided with a secondary symmetrically arranged fore shaft, and the corresponding position of lock tube inwall is provided with protruding pintle hook lock, and fore shaft cooperates with pintle hook lock and the rotation handgrip 9 that is with grip 10 can be positioned on the pedestal 1.Axial hub one side of pedestal 1 also is provided with the travel adjustment (being the outlet elbow 17 that pitch is arranged in the present embodiment) that penetrates for traction element (being steel cable 7 in the present embodiment the inside), is provided with the fine-tuning nut 16 of an adjusting steel cable elasticity near it.

The traverse detent mechanism comprises that the traverse wheel 4, the tail end that rotate handgrip 9, be provided with tension spring 8 are fixed on elastic pawl 6 on the traverse wheel 4, are arranged on the pedestal 1 and the inner ratchet ring 5 that cooperates with elastic pawl 6; In above-mentioned traverse detent mechanism, traverse wheel 4 places in the axial hub of pedestal 1, traverse radius of curvature ring for passing through in the middle of this traverse wheel 4 for steel cable 7, one side is provided with elastic pawl 6 and " C " type groove that is used to place tension spring 8, " C " type groove two ends are provided with a retaining, rotate handgrip 9 and be provided with that a paw is fond of gossip to be cooperated with elastic pawl 6, make it be in contact and treat pressure condition, simultaneously, rotate on the handgrip 9 and also be provided with a protruding bearing, be connected with the tension spring 8 that places " C " type groove, compressive tension spring when being used to into grade, inner ratchet ring 5 places between 1 two adherent draw-in grooves of pedestal, and leaves the limit range that certain Gong inner ratchet ring 5 moves between adherent draw-in groove, above-mentioned traverse wheel 4, elastic pawl 6 and inner ratchet ring 5 constitute a ratchet force closure release gear.

Gear display device comprises gear display panel 13, pointer 14 and dual gear 12, pointer 14 bottoms are provided with a gear part, offer an axis hole in the middle of the gear part, cooperatively interact with a jack-post on the pedestal 1, pointer 14 can be rotated around this jack-post, dual gear 12 one side outer rims are provided with driving tooth, take turns the interlock of 4 outer rim gears with traverse, be provided with driven tooth in the middle of the another side, the gear part of pointer 14 is passed gear display panel 13 and is cooperated with the flower wheel of dual gear 12, offers a deep-slotted chip breaker that supplies jack-post to pass in the middle of the dual gear 12.Above-mentioned gear display panel 13 is provided with a transparent cover 15.

During use, by screw 3 and fixedly clamping ring 2 bicycle handle governor is fixed on the handlebar, and will cause by the steel cable 7 of drawing in the outlet elbow 17 and dial on the chain device and adjusted.When advancing grade speed change, inwardly rotate handgrip 9, projection areal of support contact matching by aft end face fond of gossip on the rotation handgrip 9 and traverse wheel 4, driving traverse wheel 4 rotates synchronously, the elastic pawl of being located on the traverse wheel 46 drives the draw-in groove (dialling not speed change of chain " leading amount ") that inner ratchet ring 5 slides onto pedestal 1 axial hub inwall one side, subsequently, elastic pawl 6 rotates synchronously with traverse wheel 4, elastic pawl 6 is slid onto in another in ratchet slot from an interior ratchet slot of inner ratchet ring 5, and realize ratchet force-closed to internal tooth by the elasticity of elastic pawl 6.At this moment, be fixed on the steel cable 7 synchronous radius of curvature quilt tensions in various degree on the traverse wheel 4 around its upward wiring, under the tractive force transmission and traverse control of steel cable 7, dial the chain device and finish group chain action, dialling under the effect of chain device speed change torsion spring reseting torque simultaneously, inner ratchet ring 5 returns to reference position, and upward the engagement location is rapid, accurate at flywheels at different levels (or sprocket wheel) thereby guaranteed chain; Meanwhile, the protruding bearing compression of rotating on the handgrip 9 is positioned at the tension spring 8 that traverse is taken turns 4 " C " shape groove, makes it be in the compressed power of holding state.When moving back grade speed change, outwards rotate handgrip 9, the cammed surface pushing elastic pawl 6 that rotates the head fond of gossip on the handgrip 9 rotates, the elastic force of ratchet is overcome, make its with inner ratchet ring 5 between force closure separate, tension spring 8 elastic force that are in compressive state simultaneously discharge, help elastic pawl 6 actions, its interior ratchet slot by inner ratchet ring 5 is slid onto in another in ratchet slot, realized driving force-closed between elastic pawl 6 and the inner ratchet ring 5 steel cable 7 and do corresponding action.Therefore, when shifted each time, its steel cable 7 traction traverses, location are consistent with the moving interval of dialling the chain guide wheel, make bicycle can be fast, light, the pulsation-free realization is shifted.

When shifted, along with 4 actions of traverse wheel, carry out vertical drive by tip edge on the traverse wheel 4 and the driving wheel of being located at the dual gear 12 on pedestal 1 hub, to drive the gear part of pointer 14 be that corresponding the rotation done at the center with the jack-post to flower wheel by dual gear 12 again, and then, pointer 14 is rotated, realize that synchronously pointer 14 is corresponding with the gear Digital ID on the gear digitizing tablet 13, the user can see through transparent cover 15 and discern the residing gear of bicycle clearly.

Claims

1, bicycle handle governor, comprise pedestal (1), rotation handgrip (9), traction element and the traverse detent mechanism of regulating traction element, it is characterized in that described traverse detent mechanism and rotate handgrip (9) and cooperates that it comprises that the traverse wheel (4), the tail end that are provided with tension spring (8) are fixed on elastic pawl (6) on the traverse wheel (4), are arranged on the pedestal (1) and the inner ratchet ring (5) that cooperates with elastic pawl (6);

Described traverse wheel (4) places on the tubular axis of pedestal (1), and the one side is provided with " C " shape groove that is used to place tension spring, and the two ends of " C " shape groove are provided with a retaining, and described elastic pawl (6) inlay card is by " C " shape groove; The centre of traverse wheel (4) is provided with a traverse radius of curvature ring, and described traction element is around being arranged in the traverse radius of curvature ring, and draws through the travel adjustment of being located on the pedestal (1);

Described pedestal (1) inner chamber is provided with two draw-in grooves of symmetry, and inner ratchet ring (5) places between two draw-in grooves;

Described rotation handgrip (9) be provided with a protruding bearing and a paw fond of gossip, described protruding bearing cooperates with tension spring (8) on being located at traverse wheel (4), described paw is fond of gossip to be cooperated with elastic pawl (6).

2, bicycle handle governor according to claim 1 is characterized in that described tension spring (6) is a cylindroid helical-coil compression spring, a retaining contact matching of one end and " C " shape groove, and the other end cooperates with protruding bearing on the rotation handgrip (9).

3, bicycle handle governor according to claim 2 is characterized in that the angle between described travel adjustment and the pedestal (1) is 15 degree.

4, bicycle handle governor according to claim 3 is characterized in that described travel adjustment is one the helix outlet elbow (17) of pitch to be arranged.

5, bicycle handle governor according to claim 4 is characterized in that described paw head fond of gossip has a cammed surface.

6, bicycle handle governor according to claim 1, it is characterized in that described pedestal (1) is provided with a pointer gear display device, comprise gear display panel (13), pointer (14) and dual gear (12), described pointer (14) bottom is passed gear display panel (13) and is formed a gear part, dual gear (12) forms a driven tooth that cooperates with gear part at first, second forms a driving tooth, this driving tooth and traverse wheel (4) interlock.

7, bicycle handle governor according to claim 6 is characterized in that described gear display panel (13) is provided with a transparent cover (15).

8, bicycle handle governor according to claim 7 is characterized in that the gear part centre of described pointer (14) offers an axis hole, cooperates with the jack-post of pedestal (1).

9, bicycle handle governor according to claim 8 is characterized in that offering on the described dual gear (12) deep-slotted chip breaker that supplies jack-post to pass.