KR20040041292A - wheel assembly with a damping element on the spoke - Google Patents

Abstract

PURPOSE: A wheel having a shock absorber between a hub and a rim is provided to prevent the deformation of the wheel by equally dispersing impact and load to all of spokes and damping the external impact applied to the wheel and to reduce the fatigue of passengers by improving riding comfort. CONSTITUTION: A wheel including spokes(13), a hub(12), and a rim(11) inserts a shock absorber(14) longitudinally expanded and contracted to absorb shock into a spoke which is a straight steel wire. The wheel made from an aluminum alloy is inserted with a damper having predetermined elasticity and damping force between the hub and the rim to decrease the vibration and shock to a bicycle. Accordingly, the wheel having the shock absorber prevents the rim from being deformed by the external force by holding spokes of the upper and lower parts of the wheel to have tensile force by the elasticity of the spoke in receiving the external shock and absorbs shock by moving a center of wheel by finely expanding spokes positioned over the hub of the wheel and reducing the length of the spokes under the hub by the elasticity of the spoke.

Description

Wheel assembly with a damping element on the spoke}

The present invention is mainly used for two-wheeled vehicle in the wheel consisting of the rim 11 and the hub 12 and the spoke 13, the elastic component and the spoke 13 connecting the hub 12 and the rim 11 and The present invention relates to a wheel for inserting a mechanical element having a damping component to absorb an external impact during driving from the spoke so that it is not transmitted to the vehicle body.

Conventional representative wheels for motorcycles, the hub 12 and the rim 11 is connected to the spokes (13) usually formed of a straight steel wire to form a wheel. Therefore, when an external shock is applied to the wheel while driving, the shock is primarily absorbed by the rubber tire, and the remaining shock is transmitted to the vehicle body connected to the hub 12 through the rim 11 and the spoke 13 as it is. Therefore, in order to absorb such a shock, the fork 10 is fixed to the front wheel and the attenuator (shock absorber) is attached to various parts of the body, and the body also uses a special material or the body structure to withstand such an impact. Specially configured.

Conventional wheel pulls the hub 12 and the rim 11 with the spokes 13, which are usually straight steel wires, to connect the spokes 13 in a state in which tension is applied to the spokes 13 and the spokes 13 Is a structure that exerts force only in the direction in which it is tensioned, and does not function in the direction of compression. In other words, both the static load of the vehicle body and the rider and the dynamic load which changes rapidly depending on the road surface state are supported only by the tension of the spokes.

When a strong impact is applied to a part of the rim 11 having such a configuration from the road surface while driving, the impact from the rim 11 is transmitted to the hub 12 and the vehicle body without attenuation as it is through the spokes 13, and the length According to the characteristics of the spur 13 having no elasticity in the direction, the rim 11 of the specific part becomes the most vulnerable, so that the impact is concentrated, so the deformation is likely to occur in the part, and the shock is applied to the body, so the riding comfort is bad. As a result, passengers are easily tired.

The present invention is to solve the problems described above, the shock absorber 14 that can mitigate the external impact by the microscopic deformation in the longitudinal direction to the spoke 13 is usually composed of a straight steel wire By constructing the wheel to insert the wheel, the impact and load are evenly distributed to all the spokes 13 to attenuate the external shock applied to the wheel to prevent the deformation of the wheel, and to increase the ride comfort to reduce the fatigue of the rider. To provide.

1 is a structural diagram of an embodiment of a wheel according to the present invention;

2 is a view for explaining the operation of the wheel according to the present invention;

3 is a view for explaining the structure of a conventional wheel

* Explanation of symbols on the main parts of the drawings

11 rims

12 herbs

13 spoke

14 Shock Absorber

Figure 1 shows the simplest example of the invention. In this embodiment, the basic structure and constituent material are configured in the same manner as the known conventional wheel shown in FIG. However, the material of the spokes 13 connecting the rim 11 and the hub 12 is made of a more elastic steel wire, but as shown in FIG. 1-1, the shape of the spokes is modified to form a stretchable part having a simple shape, As shown in Figure 1-2, a separate shock absorber with a built-in spring is added to the spoke. Herein, only examples of the present invention may be applied to various structures in order to secure a necessary buffering force according to a use.

In addition, when fabricating the rim, the spoke and the hub by aluminum die casting, a damper having an optimal elasticity and attenuation force required according to the use environment may be inserted between the spoke and the rim to be molded.

2 is a view for explaining the operation of the present invention can be described based on the principle as follows.

In the conventional wheel as shown in Fig. 2-1, when a load (arrow direction) is applied to the lower part of the wheel, the rim 11 tries to deform into an ellipse, so that the applied load is located at the top of the hub with respect to the hub 12. All spokes and hubs and some spokes in the lower half near the horizontal plane (solid line) act as a tension force, but because the spokes cannot stretch in the longitudinal direction, the rim remains intact. However, the spokes placed near and under the load are subjected to a force (dotted line) in the compression direction, but the spokes 13 are fixed to the protruding jaws 15 on the outside of the rim to be assembled to act only on the tensile force. Since the spoke 13 does not mechanically act in this part because it is a structure, it is necessary to counter load with only the stiffness of the rim 11, so that the phenomenon of deformation of the rim 11 cannot be prevented against a large impact.

In the exemplary embodiment according to the present invention as shown in Fig. 2-2, even when there is an external impact (arrow direction), all the spokes of the upper half and the lower half of the wheel are held to have a tensile force by the elasticity of the spokes 13. As well as preventing the rim 11 from being deformed with respect to external forces, the spokes located in the upper half of the wheel hub are slightly stretched by the elasticity of the spokes 13, and the spokes located in the lower half thereof are Its length decreases, eventually absorbing the impact due to the wheel's center shifting effect.

As described above, the deformation of the wheel is fundamentally prevented by the external shock applied to the wheel according to the present invention, and the external shock can be attenuated to a certain part in the spoke portion, so that the mountain bike and the general road, which are mainly for the rough road driving, By effectively attenuating frequent external shocks in the motorcycle so that it is not transmitted to the rider, smoother driving can be performed, the fatigue of the rider is reduced, and the life of the vehicle body is extended.

Claims (2)

In the wheel composed of the spoke 13, the hub 12, and the rim 11, the shock absorber 14 which can elastically change in the longitudinal direction to the spoke 13 formed of a straight steel wire to mitigate the impact. The wheel structure is characterized by preventing the deformation of the wheel and attenuating the impact by dispersing the impact and load evenly over all spokes by constructing the wheel. In claim 1, Wheel structure, characterized in that the damping vibration and shock transmitted to the vehicle body by inserting a damper having a predetermined elasticity and damping force between the hub and the rim in a wheel formed of an aluminum alloy, etc.