JP3734824B1 - Bicycle handle anti-vibration device - Google Patents

Abstract

Vibrations generated on a bicycle handle are absorbed or significantly reduced.
The handle is constituted by a handlebar 32 supported on the vehicle body 10 so as to be axially rotatable and a grip 33 provided so as to intersect with both ends of the handlebar, and the vehicle body 10 and the handle are connected to each other. A compression spring 4 is provided therebetween, one end of the compression spring 4 is fixed to the handlebar 32, the other end is fixed to the vehicle body 10, and the bicycle vehicle body 10 receives an impact from the uneven road surface or the like. In some cases, the grip 33 wrenches the handle bar 32, and the handle bar 32 rotates around the axis in conjunction with the grip bar 32, while the compression spring 4 causes the handle bar 32 to rotate in the axial direction. The vibration generated in the bicycle handle by the biasing force of the compression spring 4 is applied in the reverse direction. Absorption or to relieve.
[Selection] Figure 2

Description

The present invention relates to a vibration damping device of a bicycle wheel, in particular, effectively absorb the vibration generated in the bicycle wheel, to anti-vibration device of a bicycle wheel suitable for relaxation.

  Bicycles are really convenient means of transportation, so you can see the sights of riding around the globe. Bicycles are the most popular means of transportation in both civilized and undeveloped countries.

  However, when the bicycle travels on an uneven road surface, the bicycle often jumps up and vibrates due to repulsive impact power (stress) from the road surface, which may cause injury to the human body. Therefore, bicycle manufacturers have always tried to improve it.

  For example, for this vibration isolation: 1. The front fork is equipped with a spring or hydraulic system. 2. Strengthen the saddle cushion. A measure such as attaching a cushion to the lower center part of the frame (see FIG. 12) is adopted. As a result, although a certain degree of improvement effect appears, a remarkable improvement effect has not yet been seen. Is the actual situation.

  If you try to ride a bicycle that is actually going downstream, the vibration transmitted from the road surface to the steering wheel when the bicycle runs on an uneven road surface will feel painful.

  Moreover, the vibration transmitted to the handle does not disappear when it hits the palm of the hand holding the handle grip.

  When gripping the grip with both palms and maneuvering the bicycle to run the bicycle, if the bicycle body shakes a little, both palms instinctively grip the grip instantly.

  Furthermore, the natural instinctive action of human beings is to grab the grip with greater force when shaken more greatly.

  The vibration transmitted to the handle passes from the wrist joint to the shoulder, and further to the neck and eventually to the brain. If such vibration is repeatedly applied, the human body may be damaged and replaced. No results.

  Note that the above-described prior art does not relate to a known literature invention.

The present invention has been made in view of such circumstances, and an object of the present invention is to absorb or significantly relieve vibration from the road surface transmitted to the bicycle handle and prevent the above-mentioned obstacles from occurring. An object of the present invention is to provide a vibration isolator for a bicycle handle.

In order to achieve the above object, a vibration isolator for a bicycle handle according to the present invention comprises a handle portion, a body portion, and a compression spring. When the bicycle travels on an uneven road surface or the like, An anti-vibration device for a bicycle handle that absorbs or alleviates vibration generated in the bicycle handle due to an impact received by the bicycle body, wherein the handle portion is provided across the handle bar and both ends of the handle bar. A pair of grips and a drive kit fixed to the center of the handlebar, and the body portion includes a pedestal for inserting and fixing the handle stem at the rear portion, and the front end of the pedestal is opposed to A pair of vanes provided, and a bar hole is formed in the center of the vanes, and the handle bar The compression spring is inserted and supported, and one end of the compression spring is attached to a hook formed in the drive kit, and the other end is attached to a step stopper formed in both outer edges of the pair of blades. It is characterized by.

Here, the term "body" is, in the entire bicycle, intends saying the portion excluding the handle and wheels.

  Since all the conventional bicycles have the handle and handle stem connected directly or connected via a bracket between them (see Fig. 12), the only motion that the handle can do is move the handle to the left and right to steer the bicycle. However, in the present invention, the handle not only moves left and right, but can also rotate around the axis.

  That is, in the present invention, the bicycle can be operated by moving the handle in the left-right direction as in the prior art, and the handlebar is pivoted around the axis by operating the grip of the handle as a wrench. Rotate.

  On the other hand, a compression spring provided between the handlebar and the vehicle body is biased in the direction opposite to the rotational direction of the shaft. By the biasing force of this compression spring, the bicycle receives an impact from the uneven road surface. The vibration generated in the handle can be absorbed or greatly reduced.

  There are many types of bicycles that are dazzling, and there are two types of bicycles, one with the handle grip tilted forward and the other with the handle tilted backwards. The structure of the vibration isolator for a bicycle handle according to the present invention is applicable to both types. The mechanism of the vibration isolator for a bicycle handle according to the present invention is a major revolution of the bicycle handle.

Further, in the invention of claim 2, wherein a vibration damping device of the handle of a bicycle according to claim 1, wherein the pedestal is adapted to integrate with the body of the bicycle and connected with the handle stem, the burr hole of the vane The handlebar inserted and supported is in a state in which the handlebar can rotate about its axis by the wrench operation of the grip.

The term “wrench operation” as used herein means that the hand holding the grip is reflectively pushed down so as to resist an impact from an uneven road surface.

Further, in the invention of claim 3, wherein a vibration damping device of the handle of a bicycle according to claim 1, in the handlebar, has been tightened snap ring and in contact with the outer side of the vane, the grip Even when the wrench is operated, the handle bar can be rotated about the axis without shifting laterally.

Further, in the invention of claim 4, wherein a vibration damping device of the handle of a bicycle according to claim 1, wherein the compression spring is rotatable, the said blade, can restrict the rotation range of the compression spring And two adjustments are formed, and an adjustment hole for inserting and fixing one of the application pads is formed. The adjustment hole can change the fixing position of the application plate and The rotational width of the compression spring can be adjusted by the fixing position of the compression spring.

According to a fifth aspect of the present invention, in the bicycle handle vibration isolator according to the fourth aspect , the compression spring moves to a position where the compression spring is attached to a step stop provided on the outer edge of the pair of blades. Thus, the biasing force can be adjusted.

According to a sixth aspect of the present invention, in the bicycle handle vibration isolator of the fifth aspect , the compression spring can be adjusted in the urging force by removing the pad and applying no pressure to the step. The stop port is formed in a U-shape and is characterized in that both the attachment and removal of the compression spring to and from the blade plate are both simple and robust.

  Here, the “no-pressure state” means a state in which the urging force of the compression spring does not act on the handlebar.

In the bicycle handle vibration isolator according to the present invention , the pedestal is connected to the handle stem and integrated with the bicycle body, and the handle bar inserted and supported in the bar hole of the wing plate is operated by the wrench operation of the grip. Since it is configured so that it can rotate around its axis, the impact (stress) that the bicycle receives from the road surface when the bicycle runs on an uneven road surface is first transmitted by a compression spring before it is transmitted to the steering wheel. In response to this stress, the urging force of the compression spring absorbs or greatly relaxes this stress, and does not cause damage to the human body due to vibration caused by this stress, or it can be kept to a minimum.

  Further, in the bicycle handle vibration isolator according to the present invention, the handlebar is configured so that the snap ring is tightened so as to be in contact with the outside of the wing plate, so that the grip wrench is operated. The handlebar can be rotated about the axis without shifting laterally.

  Further, in the vibration isolator for a bicycle handle according to the present invention, the compression spring can be rotated, and two swivels are fixed to the wing plate, so that the rotation width of the compression spring can be regulated. It is possible to prevent the compression spring from rotating excessively. In addition, an adjustment hole for inserting and fixing one of the stoppers is formed in the blade plate, and the fixing position of the stopper to the adjustment hole is variable, so that the compression spring can be adjusted by adjusting the fixing position of the stopper. The rotation width can be adjusted according to the user's preference.

  Also, in the bicycle handle vibration isolator according to the present invention, the compression spring mounting position can be changed to the step stop provided on the outer edge of the blade, so that the biasing force of the compression spring can be set according to the user's preference. Can be adjusted.

  Moreover, in the vibration isolator for a bicycle handle according to the present invention, the compression spring can be adjusted easily by adjusting the biasing force by removing the stopper and setting the pressureless state. Furthermore, since the step stop is formed in a U-shape, it is easy and robust enough to attach and remove the compression spring to and from the vane.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a conceptual diagram showing the principle of operation of a bicycle handle vibration isolation method according to this embodiment, and FIG. 2 is an external perspective view of the bicycle handle vibration isolation device according to this embodiment.

  First, the operation principle of vibration isolation of the bicycle handle according to this embodiment will be described with reference to FIGS. 1 and 2.

  As shown in FIG. 1, when the bicycle travels on the uneven road surface 7, the wheel 6 receives an impact from the uneven road surface 7, and a repulsive power F <b> 1 (stress) that causes the vehicle body 10 to bounce upward. Arise.

  In the vibration isolating method for a handle according to the present invention, a handle bar 32 and a pair of grips 33 connected to intersect both ends of the handle bar 32 are provided. The handle bar 32 operates the grip 33 with a wrench. Then the shaft rotates.

  Since the grip 33 can rotate the handlebar 32 by operating a wrench, the bicycle body 10 receives the repulsive power F1 upward from the road surface, and at the same time, both hands holding the grip 33 also face downward. The power F2 is emitted in response.

  Squeeze from both the top and bottom and put it in a pinched state. In other words, the compression spring 40 provided between the handlebar 32 and the vehicle body 10 corresponds to F1 with F2, and makes the impact generated on the vehicle body 10 by the action of the spring "0" or significantly relieves it.

  Since the compression spring 40 has one end attached to the vehicle body 10 and the other end attached to the handle 20, the impact generated on the vehicle body 10 is absorbed and canceled throughout the compression spring 40.

  Next, one embodiment of a vibration isolator for a bicycle handle according to the present invention will be described with reference to FIGS.

  A bicycle handle vibration isolator 1 includes a body portion 2, a handle portion 3, and a compression spring 4.

  The body portion 2 includes a pedestal 21, a metal fitting 22, a metal fitting 23, and a stopper 24.

  The pedestal 21 includes a joint 211 at one end, and the handle stem 9 is fitted and fixed to the joint 211, and a pair of wing plates 212 are formed at the other end of the pedestal 21 so as to face each other through a space. ing.

  A plurality of U-shaped step stoppers 213 are formed on the outer edge of the wing plate 212, a bar hole 214 is formed at the center thereof, and an adjustment hole 215 is formed behind the bar hole 214.

  The metal fitting 22 is composed of a bolt-shaped upper metal plate 221 and a lower metal plate 222. The upper abutment 221 is inserted into a hole in the upper rear part of the wing plate 212, and the lower abutment 222 is inserted into the adjustment hole 215, and is inserted into the wing plate 212 so as to sandwich both the wing plates 212 facing each other through the space. It is bolted.

  Soft bodies 223 are coated on the outer edges of the upper and lower cover plates 221 and 222.

  The stopper 23 includes a bolt having a through hole for attaching one end of the compression spring 4, and a U-shaped step formed on the wing plate 212 in a state where one end of the compression spring is passed through the through hole of the bolt. The stopper 213 is fixed with screws using washers and nuts.

  The stopper 24 is inserted into the step stop port 213 at the tip of the two blade plates 212 and attached between the two blade plates 212 in order to correctly regulate the distance between the two blade plates 212.

  The handle portion 3 includes a drive kit 31, a handle bar 32, and two grips 33.

  The drive kit 31 is formed with a bar hole 311 with a split groove at the center thereof. A handle bar 32 is inserted into the bar hole 311, and the drive kit 31 and the handle bar 32 are fixed to each other at the center of the handle bar 32.

  A crow mouth-shaped hook 312 is formed at the tip of the drive kit 31, and one end of the compression spring 4 is hooked on the hook 312.

  The compression spring 4 is of a type in which two torsion springs are connected (double type), and the joint portion of each torsion spring is formed in a U-shape, and this portion becomes one end, and this end is It is hung on the hanging port 312 of the drive kit 31. On the other hand, the other end of the compression spring 4 is composed of two pointed ends, and each pointed end is fixed to each blade 212 in a state of being inserted into the through hole of the stopper 23 as described above.

  Next, the mounting configuration (setup) of the body portion 2, the handle portion 3, and the compression spring 4 configured as described above will be described.

  First, the drive kit 31 with one end of the compression spring 4 hooked on the hook 312 of the drive kit 31 is inserted between the blades 212. At this time, the bar hole 311 of the drive kit 31, the hole of the compression spring 4, and the bar holes 214 of both wing plates 212 are all aligned.

  Next, one end of the handle bar 32 is inserted from the outside of the bar hole 214 of one blade 212, and the hole of the compression spring 4, the bar hole 311 of the drive kit 31, and the bar hole 214 of the other blade 212 are inserted. The handle bar 32 is inserted until it passes through and the center portion of the handle bar 32 is located between the two blades 212. In this state, the split groove of the drive kit 31 is firmly tightened with a bolt.

  Next, the snap rings 216 and 216 are inserted from both ends of the handle bar 32, and are inserted to a position where they come into contact with the outer edges of the two blade plates 212, and then tightened to the handle bar 32 using bolts. In this way, even when the handle bar 32 is rotating about the axis by the wrench operation, the handle bar 32 can be kept in an accurate position without being displaced laterally.

  Thereafter, the grip 33 is connected to both ends of the handle bar 32.

  Further, the compression spring 4 is set. That is, with one end of the compression spring being hooked on the hook 312 of the drive kit 31 as described above, the other end is passed through the through hole of the bolt of the fastener 23, and the U-shaped step of the outer edges of the two blade plates 212 is inserted. Bolts are fastened to the stoppers 213, and the other end and both blades 212 are fixed. This completes the setup.

  As shown in FIGS. 5 and 6, the set-up vibration isolator for the bicycle handle of the present invention is fitted and fixed to the joint 211 of the pedestal 21 so as to fit the handlebar stem 9 of the present invention. The vibration isolator is attached to the bicycle body 10. At this time, the handle bar 32 is supported by the pedestal 21 but is not restrained by the pedestal 21 and is independent. Neither of them is tying them together, they are simply bringing them together and working together. Therefore, the handle bar 32 is in a state where the shaft can be rotated by the wrench operation of the grip 33 in the bar holes 214 of the both blades 212 of the base 21.

  When the bicycle handle vibration isolator according to the present invention having such a configuration is attached to a bicycle and travels on an uneven road surface, the wheels receive an impact (stress) from the uneven road surface. Then, the hand holding the grip 33 reflexively pushes down the grip 33 and operates the handle bar 32 to which the grip 33 is fixed as a wrench. The wrench-operated handlebar 32 tends to rotate about its axis, but the compression spring 4 biases the handlebar 32 in the direction opposite to the axial rotation direction, so that the compression spring 4 This urging force absorbs or significantly reduces the vibration generated in the handlebar 32.

  In the bicycle handle vibration isolator according to the present invention, as described above, after the handle bar 32 is inserted into the bar hole 214 of the wing plate 212, the snaps are made so as to be in contact with the wing plate 212 on the outside of the both wing plates 212. Since the ring 216 is attached to the handlebar 32, the handlebar 32 is not displaced laterally, and can be stably rotated while the wrench is operating without being shaken.

  Bolt-shaped fittings 22 are fitted and fixed to both wing plates 212. The abutment metal fitting 22 is inserted into a hole provided at the upper rear part of both blade plates 212, and is inserted into an upper metal fitting 221 attached using nuts and an adjustment hole provided at the lower rear portion of both blade plates 212. , And a base metal 222 attached with a nut.

  The upper and lower limits of the swing width of the grip 33 can be determined by the upper cover 221 and the lower cover 222, whereby the grip 33 can be prevented from swinging excessively during bicycle travel.

  Specifically, when the grip 33 operates as a wrench, the handlebar 32 rotates along with this, and the drive kit 31 fixed to the central portion of the handlebar 32 also rotates along with this. Then, the tip end portion of the drive kit 31 that has been rotated about the shaft contacts the lower metal plate 222 and cannot be rotated any further.

  If the grip 33 is shaken too much during the running of the bicycle, the running performance may be deteriorated and the danger may be accompanied. Therefore, by providing the pads 221 and 222, the running performance is good and the danger can be avoided. It becomes.

  Further, a soft body 223 is covered on the outer shaft edges of the upper and lower pads 221 and 222. When the soft body 223 is covered in this way, when the drive kit 31 rotates and contacts the upper and lower pads 221 and 222, it plays a role as a cushioning material to alleviate the collision.

  In addition, the adjustment hole 215 into which the lower support 222 is inserted is formed in a vertically long ellipse shape, and the attachment position of the lower support 222 to the blade plate 212 can be adjusted within the regulation of the adjustment hole 215. Yes, the swing width of the grip 33 can be adjusted by this mounting position.

  Further, the urging force of the compression spring 4 can be adjusted (strong or weak) depending on the attachment position of the compression spring 4 to the blade plate 212.

  A method of adjusting the urging force of the compression spring 4 will be described below with reference to FIGS. 8A and 8B.

  First, the upper cover 221 is removed from the setup state. Then, the urging force (pressure) applied to the compression spring 4 is released and the pressureless state is established. In this state, the nut attached to the step stop 213 of the blade 212 is loosened with the stopper 23 into which one end of the compression spring 4 is inserted.

  Thereafter, the urging force of the compression spring 4 can be adjusted by changing the attachment position of the stopper 23 to the step stopper 213.

  That is, when the position of the step stop 213 is moved one step forward from the current position, the urging force is increased by an amount shifted by one step from the current position. On the other hand, if the step stop 213 is shifted backward by one step from the current position, the biasing force is weakened by the amount shifted by one step.

  In this way, the urging force of the compression spring 4 can be increased or decreased simply by changing the attachment position of the stopper 23 to the step stopper 213, and the strength of the operation of the grip 33 is adjusted to the user's preference. be able to.

  Further, if the step stopper 213 is formed in a U-shape as shown in FIGS. 8A and 8B and the upper part is opened, it is easy to attach or remove the stopper 23.

  After the urging force of the compression spring 4 is set, it is sufficient to fasten the stopper 221 with a nut.

  The anti-vibration device for a bicycle handle according to the present invention can be applied to both types in which the grip 33 is tilted forward and tilted backward. In FIGS. FIG. 9 shows a case where the present invention is applied to a type in which the grip 33 is tilted rearward, and FIG.

  When switching from the former to the latter, it is only necessary to simply turn the pedestal 21 upside down, which is extremely simple.

  Moreover, the case where the vibration isolator for a bicycle handle of the present invention is applied to the most popular type of handle is shown in FIGS. The grip 5 is provided with a split groove 51 at the tip so that the handle bar 32 can be easily cut. Further, the grip 5 is connected to the handle bar 32 and is fixed by a snap ring 216. Different types of handles are finished in the same way.

The conceptual diagram showing the principle of operation of the vibration isolating method of the steering wheel of the bicycle concerning the present invention. The perspective view of the vibration isolator of the steering wheel of the bicycle which concerns on this invention. The exploded view of FIG. The combination side view of FIG. The side view showing the use condition of the vibration isolator of the steering wheel of the bicycle concerning the present invention. The side view showing the use condition of the vibration isolator of the steering wheel of the bicycle concerning the present invention. The side view showing the use condition of the vibration isolator of the steering wheel of the bicycle concerning the present invention. Explanatory drawing which shows the adjustment method of the urging | biasing force of a compression spring. Explanatory drawing which shows the adjustment method of the urging | biasing force of a compression spring. The side view at the time of applying the handle | steering-wheel which the grip inclines forward to this invention. The perspective view at the time of applying a popular type handle to the present invention. FIG. 11 is an exploded view of FIG. 10. External view of a conventional bicycle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bicycle handle vibration isolator 2 Body part 20 Handle 21 Base 211 Joint 212 Wing plate 213 Step stop 214 Bar hole 215 Adjustment hole 216 Snap ring 22 Bracket 221 Upper pad 222 Lower pad 223 Soft body 23 Bracket 24 Stopper 3 Handle part 30 Arm 31 Drive kit 311 Bar hole 312 Entrance 32 Handle bar 33 Grip 4 Compression spring 40 Compression spring 5 Grip 51 Split groove 6 Wheel 7 Road surface 9 Handle stem 10 Car body a Body b Spring c Front fork d Prevention Oscillator e grip f handle stem g saddle h bracket

Claims (6)

A bicycle that includes a handle portion, a body portion, and a compression spring, and absorbs or alleviates vibration generated in the bicycle handle due to an impact received by the bicycle body from the road surface when the bicycle travels on an uneven road surface or the like. The vibration isolator for the handle of
The handle part is
A handlebar, a pair of grips provided to intersect both ends of the handlebar, and a drive kit fixed to the center of the handlebar;
The body part is
A pedestal for inserting and fixing the handle stem at the rear part is provided,
At the tip of the pedestal,
A pair of vanes provided opposite to each other, and a bar hole is formed at the center of the vane plate, and the handle bar is inserted and supported in the bar hole.
The compression spring is
A vibration isolator for a bicycle handle, characterized in that one end is attached to a hook formed in the drive kit and the other end is attached to a step stop formed on both outer edges of the pair of blades. The pedestal is
The handlebar is connected to the handlebar stem and integrated with the bicycle body, and the handlebar inserted and supported in the bar hole of the wing plate is in a state in which the handlebar can rotate about its axis by operating the grip wrench. The vibration isolator for a bicycle handle according to claim 1 . The handlebar above
The snap ring is tightened so as to be in contact with the outside of the blade, and the handlebar can be rotated about the axis without being laterally displaced even when the wrench of the grip is operated. The vibration isolator for a bicycle handle according to claim 1 . The compression spring is pivotable,
In the wing plate,
Two stoppers capable of regulating the rotation width of the compression spring are fixed, and an adjustment hole for inserting and fixing one of the stoppers is formed.
The adjustment holes, both to varying the fixing position of the straps, the fixing position of the corresponding Te alloy bicycle according to claim 1, characterized in that the adjustable pivot width of the compression spring of the handle Anti-vibration device. The compression spring is
5. The vibration isolator for a bicycle handle according to claim 4 , wherein the urging force can be adjusted by moving a mounting position to a step stop provided on the outer edges of the pair of blade plates. The compression spring is
The urging force can be adjusted by removing the pad and making it under no pressure,
The step stop is
6. The vibration isolator for a bicycle handle according to claim 5 , wherein the bicycle handle is formed in a U-shape and is easy and robust enough to attach and detach the compression spring to and from the wing plate.

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