CN104773245A

CN104773245A - Adjustable handlebar

Info

Publication number: CN104773245A
Application number: CN201510224320.XA
Authority: CN
Inventors: 周志伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-24
Filing date: 2009-04-24
Publication date: 2015-07-15
Also published as: CN101870325A; CN101870325B

Abstract

The invention relates to an adjustable handlebar. Holes distributed circumferentially are formed in the middle portion of a U-shaped structure of the handlebar, a sleeve coaxial with the middle portion of the handlebar is arranged outside the middle portion of the handlebar and can be fixed to a vehicle, a pin is arranged on the sleeve, and the sleeve is internally provided with an annular groove and a corresponding pin kind device. Separated handles are arranged on the two sides of the U-shaped structure, and shafts penetrate through end face tooth-shaped structures of the parts where a U-shaped component is opposite to the separated handles respectively. The adjustable handlebar is simple in structure, high in reliability and safety, easy to operate, capable of allowing various common or practical riding gestures and suitable for various bicycles, tricycles, light motor vehicles and fitness equipment.

Description

A kind of adjustable bicycle handlebar

The application is invention and created name is " adjustable bicycle handlebar ", and application number is 200910026487.X, and the applying date is the divisional application on April 24th, 2009.

Technical field

The present invention relates to a kind of adjustable bicycle handlebar, particularly a kind of structure is simple, easy to operate, safety, reliably, and the adjustable bicycle handlebar device of maintaining of being more convenient for.

Background technology

In the U.S.'s patent No. 4621805 file in 1986, circular cone bluff body is used at adjusting lever 2 two ends in the middle of this adjustable bicycle handlebar u-shaped component respectively, nut, screw rod, packing ring fixes the axial location of itself and pipe 1, U-shaped component adopts three sections of assemblings, complex structure, the demountable structure of exposure, easily loosens, come off, affect safe reliability and the daily service of handlebar; Due to complex structure, easily loosen, in order to make pin 51 through the hole 21 on adjusting lever 2 and the hole 12 on pipe 1, must add the gap of macropore and pin, could use, this more causes obviously rocking of handle, affects the comfortable of handlebar, reliably.With the localization method playing two ring 3 clamps 1 of packing ring effect play in two grooves 23 of step effect, the machining control difficulty of two groove 23 distances, this localization method easily produces comparatively wide arc gap.The hole 42 coordinated with circular cone bluff body fixed block 22 also must be circular cone bluff body, processing and manufacturing difficulty; Fixed block 22 all can produce the positional error of shape error and their relative cones with the bluff body in hole 42, and the gap produced after assembling, affects the comfortable of handlebar, reliably.Plastic solid fixed ring 3 is easy to by circular cone bluff body fixed block 22 groove 23 slipping into adjusting lever 2 two ends, not take measure, also makes ring 3 remove than being easier to, or the effect ring 3 being subject to power easily comes off.Handlebar uses, and maintaining is inconvenient, affects safe reliability.This is also that U-shaped component adopts three sections of reasons of assembling.In the U.S.'s patent No. 5133224 patent document in 1992, the U-shaped component 15 of this adjustable bicycle handlebar and handle 19 opposite segments have complementary groove, rotating nut 20, U-shaped component 15 two ends are opened or closes to make itself and handle 19 fix or depart from.Because U-shaped component needs enough rigidity, U-shaped component two ends are opened or the degree that closes is restricted, the fixing reliability of itself and handle 19 is also restricted, and therefore safe reliability is restricted.The existence of rotating nut 20 or increasing, make complex structure and heavy, and the existence of itself and the spindle that is connected, the large bamboo or wicker basket that will affect vehicle is installed.

Summary of the invention

For above prior art Problems existing, it is simple that task of the present invention is to provide a kind of structure, easy to operate, safety, reliably, and the adjustable bicycle handlebar device of maintaining of being more convenient for.

Task of the present invention has been come with the following method: on the handle bar device of certain class with U-shaped structure, U-shaped structure middle part has the hole of circle distribution, there is the cover coaxial with it outside, this cover can be fixed with vehicle, cover there is another to have interior step cover, spring is had in interior step cover, there is the pin of step, on pin head and U-shaped structure middle part, cone can be processed in the hole of circle distribution, this pin enters the hole on U-shaped structure middle part, both U-shaped structure can be fixed, pin exit holes, U-shaped structure is namely rotatable, a circular groove is processed outside U-shaped structure middle part He in its coaxial cover, at the local machining hole that U-shaped structure middle part is corresponding with circular groove, pin in hole can enter in circular groove, can rotate to make U-shaped structure, can make again U-shaped structure middle part and its coaxial be enclosed within axially relative fixing, U-shaped structure can be one, also can break rear pin therebetween to link into an integrated entity again, the corresponding hole of circular groove in U-shaped structure in cover can be unfair hole, elastomeric objects is put at the bottom of hole, elastomeric objects there is length be greater than the pin of annular groove depth, a hole can also be processed on circular groove, to maintain easily maintenance, or process a circular groove on U-shaped structure middle part, machining hole mount pin or screw on cover, a part for pin or screw can enter circular groove, also can make U-shaped structure middle part and its coaxial be enclosed within axial restraint.

At the other handle having two separation of the U-shaped structure of handlebar, in the end of each U-shaped structure and the end being separated handle, be horizontally installed with two covers, two overlap end in opposite directions well-distributed tooth or groove, or other device that can mutually locate, an axle is respectively had to be each passed through two covers, axle can there is step, spring, packing ring, to make two, the tooth of end or groove keep engagement or depart from engagement, even if handle can be fixed or adjustable in opposite directions.

Compared with the U.S. patent No. 4621805 file in 1986, due to the present invention's U-shaped structure middle part and its coaxial cooperation being enclosed within inner employing circular groove and pin, U-shaped structure can be rotated in cover, mutual axial location can be kept again, structure is simple, reliably, good concealment, is convenient to maintaining.The location fit of a circular groove of the present invention and pin, than the localization method of two ring 3 clamps 1 on two grooves 23 at bar 2 two ends, the gap of the tolerance fit produced is little, use more comfortable, reliably (with circular groove and pin be 5 and clamp 1 length be greater than 50, adopt free-running fit H8/g7 compare for example.The former upper limit of variation of pin is negative 0.004, and lower deviation is the upper limit of variation of negative 0.016. circular groove is positive 0.018, and lower deviation is 0.Gap is 0.004-0.034.The latter's two slot pitches from upper limit of variation be positive 0.046, lower deviation is 0.The upper limit of variation of the latter's pipe 1 length is negative 0.01, and lower deviation is negative 0.04.Gap is 0.01-0.086.The former gap only has the latter's 1/4).The U-shaped component of the present invention is outer at cover is one, is not three sections of assembly and connections, does not need processing circular cone bluff body, does not also produce the gap of combination assembling, easily manufactured, can not loosen, come off.Handlebar is safer, comfortable, reliably.Compared with the U.S. patent No. 5133224 file in 1992, due to the present invention's handle be separated with two that adopts diaxon to be each passed through U-shaped structure, just no longer need to rely on U-shaped component two ends to open or the degree that closes to make handle fix or to depart from, U-shaped component can guarantee enough security intensities, the groove of the circle distribution of the decile that U-shaped structure and handle opposite site respectively have can have enough depth of engagements, the fixing reliability of both engagements and safety can be increased, the large bamboo or wicker basket not affecting vehicle is installed, and structure is simpler.

Accompanying drawing explanation

Fig. 1 is design sketch of the present invention.

Fig. 2 is a kind of constructional drawing of the present invention.

Fig. 3 is the lateral plan of Fig. 2.

Fig. 4 is the another kind of constructional drawing of the present invention.

Detailed description of the invention

Fig. 1, shows the present invention's operable part handling position effect.

In fig. 2, the present invention is by U-shaped framing member (1), pin (3), spring (4), cover (5), first set (6), the second cover (9), pin (10), spring (11), key-ring (12), is separated handle (16), 3rd cover (17), axle (18), the 4th cover (19), spring (20), packing ring (21), pin (22) composition.Have the first circular groove (8) at first set (6) inwall, cover (5) connects firmly in the middle of U-shaped framing member (1), and the second cover (9) connects firmly with first set (6).Cover (5) there is the taper hole (7) of not all-pass hole (2) and some circle distribution.The length of pin (3) is greater than the degree of depth of the first circular groove (8), under the effect of spring (4), pin (3) part is in hole (2), a part is in the first circular groove (8), pin (10) in second cover (9) has step, be easy to enter taper hole (7) in the cone of effect downside pin (10) end of spring (11), pull key-ring (12), pin (10) departs from taper hole (7), component (1) just can rotate, but longitudinal travel can not occur.Also can in the upper machining screw of pin (10), second cover (9) interior nut processing plays similar action.First set (6) connects firmly with the standpipe of handlebar.3rd cover (17) and the 4th cover (19) opposed end have well-distributed tooth or groove.Separation handle (16) and the 3rd cover (17) connect firmly, 4th cover (19) and U-shaped framing member (1) connect firmly, axle (18) is through the 3rd cover (17) and the 4th cover (19), spring (20) helps the 3rd cover (17) and the second cover (19) to keep engagement, exert oneself left at the 3rd cover (17), be separated handle (16) namely to rotate relative to the axis of axle (18), to appropriate location, allow the 3rd cover (17) and the 4th cover (19) enter engagement, can use.In the position of packing ring (21), nut can also be adopted to increase safe reliability.Be separated the shape that handle (16) can be L or U, a word etc.

Show another kind of embodiment in the diagram, the upper mounting screw pin (14) of first set (6) of this adjustable bicycle handlebar, packing ring (15), cover (5) there is the second circular groove (13), screw pin (14) part enters in the second circular groove (13), U-shaped component (1) namely can rotate, and longitudinal travel can not occur again.Other parts and Fig. 2 structural similitude.

Structure of the present invention is simple, reliability and safety good, easily operate, can provide various conventional or practical posture by bike, suitable all kinds of bicycle, three-wheel vehicle, Portable power-driven car, body-building apparatus uses.

Claims

1. an adjustable bicycle handlebar, comprising U-shaped component (1), there is the hole (7) of circle distribution U-shaped component (1) middle part, first set (6) is had outside the hole (7) of circle distribution, first set (6) has and sells (10) accordingly with the hole of circle distribution (7), it is characterized in that: the middle part being provided with U-shaped component (1) in the first circular groove (8) or first set (6) in first set (6) is provided with the pin-type device of the second circular groove (13) and correspondence, U-shaped component (1) can be one outside first set (6).

2. the adjustable bicycle handlebar as described in right 1, is characterized in that: there is tapering hole (7) and pin (10) end of the circle distribution of U-shaped component (1) middle part.

3. the adjustable bicycle handlebar as described in right 1, is characterized in that: at upper second cover (9) in addition of first set (6), pin (10) is in cover (9).