JPH0223516Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a motorcycle handlebar balancer that reduces steering wheel vibration.

On a motorcycle, the vibrations of the engine while driving are
Vibrations are transmitted through the vehicle body to the steering wheel, making it uncomfortable when the vibrations are transmitted to the hands holding the steering wheel. The engine is
Although it is mounted on the car body via an elastic body to reduce vibrations transmitted to the car body, vibrations are still transmitted to the steering wheel. In particular, when the vibration of the engine reaches a point where the rotational speed matches the natural frequency of the steering wheel, the steering wheel resonates and the vibration increases. In order to remove this resonant point from its normal position, it has been done to change the unique vibration frequency of the handle by fixing a jute to the end of the handle. However, since the weight of the balancer is determined based on general driving conditions, drivers with different driving conditions may be dissatisfied with the use of parts that experience increased vibration due to resonance. remain.

In view of these points, this invention allows the balancer to be adjusted according to the driving conditions of each individual driver, so that the resonance point of the steering wheel can be changed to suit the driver, and vibration can be reduced. An improved embodiment of the present invention will be described below with reference to the drawings.

A balancer weight 2 is fixed to the tip of a support shaft 1. The support shaft 1 has a screw carved into it, and the support piece 3
Screw them into appropriate positions and secure with lock nuts 4. Further, an elastic holding piece 5 is screwed onto the other end of the support shaft 1. Then, the support shaft 1 is inserted into the handle pipe 6 from the end of the handle pipe 6 so that the balancer weight 2 is located on the inside of the handle pipe 6, and is held by the support piece 3 and the elastic holding piece 5. A balancer weight 2 is held cantilevered within the end of a handle pipe 6. In the part where the balancer weight 2 is inserted, a partition piece 7 may be inserted into the handle pipe 6 as shown in FIG. 3, and a viscous fluid 8 may be sealed therein. A grip 9 to be held by a driver is attached to the outer periphery of the end of the handle pipe 6.

Therefore, due to the vibration of the handle pipe 6, the balancer weight 2 vibrates around the support piece 3 so as to dampen the vibration, thereby reducing the vibration of the handle pipe 6. The branch 3 changes its position and becomes 1 in Fig. 2.
By changing the relationship between ₁ and 1 ₂ , the unique frequency of the entire handle pipe 6 can be changed, and the resonance frequency can be changed. Therefore, the driver can adjust the resonance point to a location that is not within the range that he or she uses. In this way, grip 9
It can reduce the vibration to the hand that holds it. Furthermore, if the viscous fluid 8 is sealed in the balancer weight 2 portion, vibrations can be damped and vibrations can be further prevented.

As explained above, this invention has an elastic holding piece attached to the other end of the spindle that has a balancer weight attached to its tip, and a support piece that is adjustable in position in the middle of the spindle. Insert the above spindle into the tip of the handle pipe so that the balancer weight is located on the inside of the handle pipe,
Since the above-mentioned support piece and elastic holding piece are attached to the handle pipe, the balancer weight vibrates to suppress the vibration of the handle pipe, thereby reducing the vibration. Moreover, since the end of the support shaft opposite to the balancer weight is supported on the inner surface of the handle pipe via the elastic holding piece, the rise of the peak of the natural frequency of the balancer weight supported in a one-sided manner is caused by the elastic holding piece mentioned above. The resonant frequency can be made less noticeable and the riding feeling can be improved. In addition, by adjusting the positions of the support piece and the elastic holding piece, the natural frequency of the handle pipe as a whole can be changed, and the resonance point can be moved to a position that is not normally used by the driver, thereby reducing vibration. can be reduced. Furthermore, if the balancer weight is placed in a viscous fluid, vibrations can be damped, making it even more effective.

[Brief explanation of the drawing]

Figure 1 is a front view showing the place where this invention is used;
The drawings are an enlarged vertical cross-sectional view of the portion indicated by the arrow A in FIG. 1, showing one embodiment of the present invention, and FIG. 3 is an enlarged longitudinal cross-sectional view showing another embodiment of the present invention. 1... Support shaft, 2... Balancer weight, 3...
...branch piece, 5...elastic holding piece, 6...handle pipe.

Claims (1)

[Scope of utility model registration request] An elastic holding piece is attached to the other end of the spindle that has a balancer weight attached to the tip, and a piece is attached to the middle of the spindle so that its position can be adjusted, so that the balancer weight is placed on the inside of the handle pipe. The handlebar balancer for a motorcycle is characterized in that the support shaft is inserted into the tip of the handle pipe so that the support shaft is positioned at the tip of the handle pipe, and the support piece and the elastic holding piece are attached to the handle pipe.