CN2464619Y

CN2464619Y - Improved steering mechanism for bicycle

Info

Publication number: CN2464619Y
Application number: CN 01201789
Authority: CN
Inventors: 李坤元
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-01-22
Filing date: 2001-01-22
Publication date: 2001-12-12
Anticipated expiration: 2011-01-22

Abstract

The utility model relates to an improved bicycle head device which mainly comprises a bicycle bibcock, a nut cap, a cover, a bearing pulley, a topping body and a loop bar, wherein a clamp part is convexly extended at the appropriate position of the outer edge of the cover. A protrusion is convexly extended at the appropriate position of the outer edge of the topping body. When the bicycle head drives the cover to rotate 180 DEG, the clamp part formed by the outer edge of the cover is fastened with the protrusion at the outer edge of the topping body and generates topping force to the bicycle head, so the rotation angle of the bicycle head is not bigger than 180 DEG, and the accident of a rider because the bicycle head is deflected too much can be prevented. The improved bicycle head device has simple and steady structure and high security, which is especially suitable for serving as a bicycle head device.

Description

Improved bicycle headstock mechanism

The utility model relates to a kind of bicycle headstock mechanism, particularly relates to a kind of bicycle headstock mechanism that only makes headstock do 180 ° of rotations.

As everyone knows, the Regular Bicycle headstock all can be done 360 ° of rotations, and this structure is easy to be subjected to unexpected injury because of overswing makes the bicyclist, the firm inadequately and safety of therefore existing bicycle headstock mechanism.

In view of this, the inventor is active development research, and the phase can suitably improve bicycle headstock mechanism, and makes it have more practicality.Yet, Providence doesn't let down a man who does his best at long last, the inventor is based on being engaged in this series products manufacturing experience and long-term endeavour research and test for many years, and development and Design goes out the improved bicycle headstock of the utility model mechanism finally, and can all customer and the industrial communitys in Jiahui.

The purpose of this utility model promptly is to provide a kind of improved bicycle headstock mechanism, so that bicycle head only can be done 180 ° of deflections, thereby avoids causing unexpected injury because of the excessive bicyclist of making of deflection.

To achieve these goals, the utility model protrudes out a card division in the lid outer rim appropriate location of bicycle headstock mechanism, and the external edge appropriate location of pulling on bicycle headstock mechanism top is provided with the protuberance that can engage mutually with the card division.

Headstock mechanism to said structure, the rotation of headstock will drive lid and rotate, and when headstock forwards 180 ° to, the formed card division of lid outer rim will be sticked in the protuberance that pushes up the external edge of pulling, thereby headstock is produced the power of pulling of pushing up, make the rotational angle of headstock not surpass 180 °, and then can prevent to cause unexpected injury because of the excessive bicyclist of making of headstock deflection.

Be described in further detail below in conjunction with the technical characterictic of specific embodiment the improved bicycle headstock of the utility model mechanism.

Fig. 1 is the scheme drawing of the improved bicycle headstock of the utility model mechanism;

Fig. 2 is the decomposing schematic representation of the improved bicycle headstock of the utility model mechanism;

Fig. 3 is the action scheme drawing of the improved bicycle headstock of the utility model mechanism;

Fig. 4 is the action generalized section of the improved bicycle headstock of the utility model mechanism.

Shown in figure 1,2, the improved bicycle headstock of the utility model mechanism mainly comprises handlebar 10, nut 20, lid 30, patent sheave 40 and top pull body 50 and loop bar 60.

Form hollow form in the handlebar 10, and lid 30 is provided with the containing hole 31 that is used to penetrate handlebar 10, its outer rim appropriate location is provided with card division 32.Push up the body 50 of pulling and also be provided with the containing hole 51 that is used to penetrate handlebar 10, its outer rim appropriate location is formed with protuberance 52.Be formed with threaded column 61 on the loop bar 60.

During the utility model assembling, handlebar 10 is passed nut 20, lid 30, patent sheave 40 and top pulls behind the body 50, again with loop bar 60 on threaded column 61 be screwed, and nut 20, lid 30, patent sheave 40 and the top body 50 of pulling is coated between handlebar 10 and the loop bar 60, so be integral structure of the present utility model.

With reference to figure 3, shown in Figure 4, when the utility model uses, headstock rotates and will drive lid 30 rotations, and when headstock rotates 180 °, the formed card division 32 of lid 30 outer rims will be sticked in the protuberance 52 that pushes up body 50 outer rims of pulling, thereby headstock is produced one push up the power of pulling, make the headstock rotational angle surpass 180 °, and then can prevent to cause unexpected injury because of the excessive bicyclist of making of deflection angle.

By the structure of the above improved bicycle headstock mechanism as can be known, the utility model can overcome the shortcoming of existing bicycle headstock mechanism in use fully, has stronger practicality and higher industrial utilization.

In sum as can be known, the improved bicycle headstock of the utility model mechanism is at structure design, practicality and cost benefit aspects, and it is required to meet industry development really fully, so propose patent application in accordance with the law, would like to ask the examination and approval early of an ancient unit of weight office.

Claims

1, a kind of improved bicycle headstock mechanism comprises handlebar, nut, lid, patent sheave and top pull body and loop bar; The inner hollow form that forms of handlebar, lid is provided with the containing hole that is used to penetrate handlebar; Push up the body of pulling and also be provided with the containing hole that is used to place handlebar, be formed with threaded column on the loop bar; The outer rim appropriate location of described lid that is characterised in that of the present utility model is formed with the card division, and the external edge appropriate location of pulling, top is formed with the protuberance that can engage mutually with the card division.