CN2463300Y

CN2463300Y - Damping device of front fork

Info

Publication number: CN2463300Y
Application number: CN 01204845
Authority: CN
Inventors: 刘雄飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-01-19
Filing date: 2001-01-19
Publication date: 2001-12-05
Anticipated expiration: 2011-01-19

Abstract

The utility model relates to a novel front fork device for damping vibration, which is mainly used for bicycles, and simultaneously, the utility model can be also used for tricycles and motorcycles. The utility model is mainly composed of a front sleeve pipe (17), a guide pipe (3), a front fork (1), the upper part of which is provided with a sliding rod (D), a vibration damping spring (7), a regulating nut (12), a steering rod (6), etc. The utility model has the advantages of compact structural design, novelty and beautiful appearance, favorable performance of vibration damping, convenient operation and high safety, and the upper part of the front sleeve pipe (17) is provided with a vehicle lock (14).

Description

Novel front fork shock attenuation unit

The present invention is a kind of front fork shock attenuation unit of the novelty that is mainly used in bicycle, also can uses on three-wheel vehicle, motor bike simultaneously.

At present, in the bicycle front fork bottom mainly by orienting sleeve, slide bar, the shock attenuation unit that damper spring is formed, reasonable inadequately because of its structure, in its processing, assembling, to make the orienting sleeve of bicycle front fork during maintenance, the axis of slide bar about, former and later two directions all keeping parallelism be that bigger difficulty is arranged, therefore, orienting sleeve, the relative frictional resistance between the slide bar strengthens, sensitivity reduces, and has weakened its due effectiveness in vibration suppression greatly.

In order further to improve bicycle front fork effectiveness in vibration suppression partly, the present invention will provide a kind of compact conformation, novel and beautiful appearance, the front fork shock attenuation unit of the better a kind of novelty of cushioning performance, its basic structure: in the anterior cannula (17) on vehicle frame (18) orienting sleeve (3) is housed, and steel ball (2) is housed up and down between two ends at anterior cannula (17) and orienting sleeve (3), (9), locate by setting nut (12) in orienting sleeve (3) upper end, nut (11) assembly fastens, front fork (1) top slide bar (D) is housed in orienting sleeve (3), and and orienting sleeve (3) between cavity in damper spring (7) is housed, have on the slide bar (D) on front fork (1) top spline and with spline that orienting sleeve (3) top (A) is located be directed bearing fit, bind fixing in slide bar (D) upper end by screw (8), in anterior cannula (17) upper end top cover (10) is housed, deflecting bar (6) is housed on orienting sleeve (3), between deflecting bar (6) and orienting sleeve (3), pressing plate (5) is housed, and it is fixing by screw (4), on anterior cannula (17) top lock (14) is housed, and it is fixing by screw (13), cooperate for multiple screw thread between the guide pin bushing (E) on tapered end (16) and the lock (14), tapered end (16) latter half of have with lock (14) on the elongated slot (F) of shifting block (C) bearing fit, with orienting sleeve (3) top of the corresponding cooperation of tapered end (16) on the lock (14) one elongated slot (B) is arranged.

By accompanying drawing the present invention is described in further detail below:

Fig. 1 cutaway view of the present invention

Unclamp screw (4), deflecting bar (6) can move up and down in orienting sleeve (3), and piece together tight screw (4) at the height of needs and go up deflecting bar (6) fixing at orienting sleeve (3), since have on the slide bar (D) on front fork (1) top spline and with spline that orienting sleeve (3) top (A) is located be directed bearing fit, in the time of by bike, because the effect of human body gravity, when whole vehicle frame (18) compresses damper spring (7) together with the orienting sleeve (3) in the anterior cannula (17), along a sink segment distance and remain on certain height of the slide bar (D) on front fork (1) top, when running into rugged road surface, the continuously strong and weak impact shock that varies in size makes the damper spring (7) between slide bar (D) and the orienting sleeve (3) make continuously fore and aft motion up and down, thereby weakened the influence of impact shock greatly to human body, because the slide bar (D) and the concentricity between the orienting sleeve (3) on front fork (1) top are higher, friction drag is very little relatively, the reaction of damper spring (7) impact vibration is just very sensitive, on the less flat road of fluctuation, can make the people feel a kind of unusual light comfortable sensation by bike, when constantly adjusting balance or turning, stir the deflecting bar (6) that is fixed on the orienting sleeve (3), at this moment, orienting sleeve (3) is driving front fork (1) top slide bar (D) together in same rotational, orienting sleeve (3) in vehicle frame (18) and the anterior cannula (17) slides up and down along the axis direction of front fork (1) top slide bar (D) together, because tapered end (16) cooperates for multiple screw thread with guide pin bushing (E) on the lock (14), simultaneously, tapered end (16) latter half of have one with lock (14) on the elongated slot (F) that is slidingly fitted of shifting block (C), after the parking, when rotating with vehicle frame (18) front fork (1) into about miter angle, in the time of key (15) two circles, shifting block (C) on the lock (14) drives tapered end (16) and rotates, and in the elongated slot (B) on orienting sleeve (3) top, insert, at this moment, can not rotate between orienting sleeve (3) and the anterior cannula (17), extract key (15), bicycle is just very convenient like this pins safely and reliably.

Structure design compactness of the present invention, novel and beautiful appearance, and have the favorable damping effect, load onto lock (14) on anterior cannula (17) top, use more convenient, safe and reliable, the present invention can also be used widely on three-wheel vehicle, motor bike except that mainly using on bicycle simultaneously.

Claims

1. the present invention is a kind of bicycle that is mainly used in, simultaneously also can be used for three-wheel vehicle, the front fork shock attenuation unit of the novelty on the motor bike, it is characterized in that: in the anterior cannula (17) on vehicle frame (18) orienting sleeve (3) is housed, and steel ball (2) is housed up and down between two ends in anterior cannula (17) and orienting sleeve (3), (9), locate by setting nut (12) in orienting sleeve (3) upper end, nut (11) assembly fastens, front fork (1) top slide bar (D) is housed in orienting sleeve (3), and and orienting sleeve (3) between cavity in damper spring (7) is housed, bind fixing in front fork (1) slide bar (D) upper end by screw (8), be contained in top cover (10) in anterior cannula (17) upper end, deflecting bar (6) is housed on orienting sleeve (3), pressing plate (5) and fixing by screw (4) is housed between deflecting bar (6) and orienting sleeve (3).

2. according to the front fork shock attenuation unit of the described novelty of claim (1), it is characterized in that: on the slide bar (D) on front fork (1) top, have spline and with spline that orienting sleeve (3) top (A) is located be bearing fit.

3. the front fork shock attenuation unit of novelty according to claim 1, it is characterized in that: lock (14) is housed on anterior cannula (17) top, and fixing by screw (13), simultaneously, orienting sleeve (3) top (A) locate one with lock (14) on the elongated slot (B) of the corresponding cooperation of tapered end (16).