CN1520368A - Handlebar structure of two-wheeled motor vehicle - Google Patents

Abstract

A handle structure for autobicycles, comprising a handle post Y-shaped as viewed from the front and fixed to a steering shaft, the handle post supporting the right and left side portions and lower portion of a handle bar through elsstic members. Right left upper supports supporting the right and left side portions of the handle bar are disposed forwardly of the axis of the steering shaft and adapted to clamp an elastic member from the front and rear. A lower support supporting the lower portion of the handle bar is disposed rearwardly of the axis of the steering shaft and adapted to clamp the elastic member from the rear. Therefore, the longitudinal inclination of the handle bar against longitudinal force can be reduced. The clamp portion can be prevented from interfering with handle with handle attachment. Longitudinal vibrations transmissible to the handle can be absorbed.

Description

Handlebar structure of two-wheeled motor vehicle

technical field

The present invention relates to a handlebar structure of a motor vehicle.

Background technique

As a handlebar structure of a motorcycle, there is, for example, the structure shown in Japanese Patent No. 2552839 "Handlebar Mounting Structure for Motorcycles, etc.". The handlebar attachment structure of this motorcycle or the like is as shown in FIG. 3 of the publication, in which a bracket 6 is attached to a steering shaft 7 via a fastener 8 . Furthermore, as shown in FIG. 2 of this publication, mounting brackets 12 , 12 , 12 of the handlebar 4 are attached to the bracket 6 via rubber members 9 , 9 , 9 .

In this way, in the handlebar mounting structure of this publication, since the handlebar 4 is supported at three points, even if unnecessary fastening is not performed, front and rear shaking can be eliminated, and the anti-vibration effect of the rubber members 9, 9, 9 is not reduced. . Therefore, the vibration transmitted to the handlebar 4 can be moderated.

However, in the handlebar mounting structure of the aforementioned publication, when a force in the front-rear direction acts on the handlebar 4, since the rubber member 9 is likely to be elastically deformed in the shearing direction, the force of this back-and-forth wobble is relatively low. Anti-vibration performance may decrease.

In addition, although the handlebar attachment structure of the publication is suitable for the vibration of the pitching, the rubber member 9 is too soft for the vibration of the pitching, and the anti-vibration performance may be lowered.

Furthermore, the bracket 6 and the mounting brackets 12 , 12 protrude far forward with respect to the axis of the steering shaft 7 . In this way, if the amount of protrusion of the fastening portion is large, the handlebar cover needs to be enlarged. In particular, there are various devices such as lamps and meters around the handlebar, and the handlebar cover needs to be enlarged in order to store them without interfering with these devices.

Contents of the invention

The object of the present invention is to provide a handlebar structure of a motor vehicle, which can reduce the inclination of the handle bar in the front-rear direction relative to the force in the front-rear direction, prevent the interference of the connecting part where the handlebar is installed, and absorb the transmission. Give the vibration of the front-back direction of the handlebar.

According to the present invention, there is provided a handlebar structure of a motorized two-wheeled vehicle, which fixes a Y-shaped handlebar post on the steering shaft, and supports the left and right sides and the lower part of the handle bar on the steering shaft respectively through elastic members. On the strut, it is characterized in that the left and right upper support parts supporting the left and right sides of the handle bar are arranged in front of the axis of the steering shaft, and the elastic members are fastened front and rear, and the lower support part supporting the lower part of the handle bar is lower than that of the steering shaft. The axis of the above-mentioned steering shaft is disposed toward the rear, and the elastic member is fastened from the rear side.

In this way, since the present invention arranges the left and right elastic members to be fastened front and rear with respect to the axis of the steering shaft, and arranges the elastic members to be fastened from the rear side with respect to the axis, the force in the front-rear direction , The 3-point elastic parts all produce elastic deformation in the compression direction and support the handle rod at the same time. As a result, the amount of movement of the handle bar due to the elastic deformation of the elastic member is small, and the inclination angle of the handle bar in the front-rear direction becomes small.

Furthermore, since the upper support portion of the handle bar is constructed by fastening elastic members to the front and rear, the amount of protrusion protruding forward from the handle bar is small, and does not interfere with electronic components such as the left and right front turn signals.

In addition, since the elastic member is attached to the upper support part so as to be fastened front and rear, and the elastic member is attached to the lower support part so as to be fastened from the rear side, the elastic member elastically deforms in the direction of compression with respect to the vibration in the front-rear direction. , thereby absorbing the vibration. Therefore, anti-vibration performance is improved.

In the present invention, a substantially horizontal engine with cylinders facing forward is suspended from the lower part of the main frame of the two-wheeled motor vehicle. In this way, by making the cylinder face forward and suspending the engine approximately horizontally, the vertical vibration generated by the engine is reduced, and the vertical vibration transmitted from the main frame to the handle bar is reduced. In addition, coupled with the elastic member fastened in the front-rear direction, it is possible to effectively absorb the vibration of the engine in the front-rear direction and prevent the vibration from being transmitted to the handlebar.

Furthermore, in the present invention, a handlebar cover attachment portion is provided on the lower support portion of the handle bar. In this way, the mounting portion of the handlebar cover is provided on the lower support portion, thereby making the mounting portion integrally with the lower support portion, thereby reducing the number of parts. Furthermore, since all three points for fastening the handlebar cover can be provided on the handlebar, it is not necessary to attach the attachment part to a separate elastic member.

Also, in the present invention, the handlebar stay has both arms formed by bending a tube to a base mounted on the steering shaft. In this way, the strength of both arms is ensured by attaching both arms formed by bending the pipe. As a result, the shape of both arms becomes simple, and the weight and size of the handlebar post can be reduced.

Description of drawings

Fig. 1 is the side view of the motor two-wheeled vehicle that adopts the handlebar structure of the present invention;

Fig. 2 is the 2-2 arrow direction view of Fig. 1;

Fig. 3 is the 3-3 arrow direction view of Fig. 1;

Fig. 4 is the side view of handlebar structure of the present invention;

Fig. 5 is a perspective view of a handlebar post and a handle bar of the present invention;

Specific implementation form

1 is a side view of a motorized two-wheeled vehicle that adopts the handlebar structure of the present invention. The motorized two-wheeled vehicle 10 is a vehicle that has a vehicle body frame 13 composed of a main frame 11 and a frame mounted on the main frame 11. The rear frame 12 at the rear of the main frame 11 is provided with a head pipe 15 at the front of the main frame 11, and a front fork 16 is installed on the head pipe 15 in a steerable direction, and a front wheel 17 is installed at the lower end of the front fork 16. A handlebar 18 is installed on the upper end of the front fork 16, an engine 21 is suspended on the lower part of the main frame 11, and a swing arm 22 is swingably installed, and a rear wheel 23 is installed on the rear end of the swing arm 22, and a pair of The lower ends of the rear shock absorbers 24, 24 (inside marks 24 are not shown), the upper ends of these rear shock absorbers 24, 24 are mounted on the rear frame 12, and the fuel tank 25 and the vehicle seat 26 are mounted on the rear frame 12. .

Among the figure, 31 is a headlight, 32 is a handlebar cover, 33 is a handlebar pillar, 34 is a handle bar, 35 is a front cover, 36 is a leg guard, 37 is a front fender, and 38 is a side cover.

The engine 21 inclines the cylinder block 39 which is a cylinder substantially horizontally forward, and is an engine itself which faces substantially horizontally forward. 21a is an air cleaner, and 21b is an exhaust device.

Fig. 2 is the 2-2 arrow direction view of Fig. 1, shows the handlebar structure of the two-wheeled motor vehicle of the present invention.

The handlebar structure includes a Y-shaped handlebar post 33 fixed on the steering shaft 41 in the head pipe 15 and a handle that supports the left side part 42 , the right side part 43 and the lower part 44 on the handlebar post 33 . Lever 34. 45 denotes a left front turn signal provided beside the headlight 31, 46 represents a right front turn signal, 47, 47 represent handles, 48, 48 represent levers, and 49 represents a rearview mirror.

Fig. 3 is a view in the direction of arrow 3-3 in Fig. 1, showing that the left side part 42 and the right side part 43 of the handle bar 34 are installed on the handlebar pillar 33, and the left and right front turn signals 45, 46 are arranged on the left side 42 and the front side of the right side part 43. 51 and 51 are light bulbs for turn signals, and 52 are instruments such as speedometers.

As shown in the figure, by closely assembling electronic components such as the meters 52 , the headlights 31 , and the left and right front turn signals 45 and 46 , the productivity can be improved and the size can be reduced.

Fig. 4 is a side view of the handlebar structure of the present invention, showing that the handlebar pillar 33 is fixed on the steering shaft 41 by a fixing mechanism 55, and the handle bar 34 is fixed by elastic members 56, 56 (not shown), and 57. The left side part 42 , the right side part 43 (see FIG. 3 ), and the lower part 44 are respectively supported by the handlebar post 33 . 58 is the axis of the steering shaft 41 .

The structure of the handlebar post 33 is as follows. On the base 61 installed on the steering shaft 41, two arm portions 63, 63 (not shown) formed by bending the pipe 62 are installed. Fitting members 64 and 64 (not shown) are attached so as to be forward (direction of arrow a) from the axis 58 of the steering shaft 41, and are attached and connected at the center so as to be rearward of the axis 58 of the steering shaft 41 (direction of arrow b). Components 65 and 66 represent clips for supporting cables or the like.

The structure of the handle bar 34 is as follows. The upper support parts 71, 71 (not shown) are installed on the upper part in a manner more forward than the axis 58 of the steering shaft 41, and the elastic members 56 are fastened front and rear by bolts 72. The lower support portion 73 is attached behind the axis 58 of the steering shaft 41 , and the elastic member 57 is fastened with bolts 74 from the rear side. 75 is a mounting part of the handlebar cover 32 provided on the lower supporting part 73, 76 is a corner piece supporting parts such as the handlebar cover 32 provided on the upper part, 77 is a mirror mounting part, and 78 is a lever support part.

The handle cover 32 is composed of a front cover 32a and a rear cover 32b. The rear cover 32b includes a first seat portion 32c formed on the lower side, second and third seat portions 32d and 32e (not shown) formed in the center, and a cover joint portion 32f formed on the upper side. 91 represents small screws, and 92 and 93 represent self-tapping screws. In addition, the form of the 3rd seat part 32e is the same as that of the 2nd seat part 32d.

Figure 5 is a perspective view of the handlebar post and the handle bar of the present invention, showing the two wrists 63, 63 of the handlebar post 33, the fitting parts 64, 64, the upper support parts 71, 71 of the handle bar 34, and the corner piece 76, 76, and elastic members 56, 56.

The elastic member 56 has a groove 81 in the center of the outer periphery. The elastic member 57 also has a groove 82 on its outer periphery.

A hole 83 into which the groove 81 of the elastic member 56 is fitted is formed in the fitting member 64 of the handlebar stay 33 . 84 , 84 are snap rings fitted into the elastic member 56 .

A hole 85 into which the groove 82 of the elastic member 57 fits is formed in the lower support portion 73 of the handle bar 34 . 86 is a snap ring fitted into the elastic member 57 .

The attaching portion 75 of the handlebar cover 32 is a plate continuously formed integrally with the lower side of the lower support portion 73 , and a hole 87 and a nut 88 are provided in the center.

Here, an example of the assembly procedure will be described. First, after the handlebar post 33 and the handle bar 34 are assembled as shown by the arrows through the elastic members 56, 56, 57, they are installed on the steering wheel by using the fixing mechanism 55 (washers 55a, 55b, bolts 55c, and stoppers 55d). On the shaft, after that, assemble the various components such as electronic components. Finally, the handlebar cover 32 is installed.

When installing the handlebar cover 32, as shown in Figure 4, first, the first seat portion 32c of the rear cover 32b is installed on the mounting portion 75 of the handlebar cover 32 with a small screw 91, and the second and third seat portions 32d, 32e are installed on the corner pieces 76, 76 with self-tapping screws 92, 92, and all three fastening points of the first to third seats 32c, 32d, 32e are attached to the handle bar 34. Then, the front cover 32a is attached to the cover engaging portion 32f of the rear cover 32b with tapping screws 93 .

Next, the operation of the handlebar structure of the above-mentioned motorcycle will be described.

As shown in FIG. 4 , if the force F acts on the handle bar 34 as indicated by arrow ①, the two points of the upper support parts 71 and 71 (refer to FIG. 5 ) arranged ahead of the axis 58 of the steering shaft 41 and the ratio axis 58 The force F is supported by 1 point of the lower support part 73 arranged at the rear and a total of 3 points, and the force F is supported by the elastic deformation of the elastic members 56, 56, 57 fastened to the front and rear in the compression direction, so the force F can be reduced. Inclination angles θf and θr of the handle bar 34 in the front direction (direction of arrow ②) and rearward direction (direction of arrow ③).

In addition, since the upper support parts 71, 71 (see FIG. 3 ) of the handle bar 34 are configured to fasten the elastic members 56, 56 front and rear, the protrusion amount Lf protruding forward from the handle bar 34 can be reduced. As a result, a large space can be provided in front of the handle bar 34, and the upper support parts 71, 71 can be prevented from contacting the instruments 52, the headlights 31, the left front turn signal lamp 45, and the right front turn signal lamp 46 (refer to FIG. 3 ) in the handlebar cover 32. ) interference of electronic components such as light bulbs 51, 51.

Moreover, since the upper support parts 71, 71 of the handle bar 34 fasten the elastic members 56, 56 front and rear, and the lower support part 73 fastens the elastic member 57 from the rear side, if the front and rear shake like arrow ④, Vibration is transmitted from the main frame 11 to the handlebar post 33, and the elastic members 56, 56, 57 can absorb the vibration of the front and rear shaking by utilizing the elastic deformation in the compression direction, and can effectively absorb the vibration of the front and rear direction.

As shown in FIG. 1 , since a substantially horizontal engine is suspended on the lower part of the main frame 11 of the motorcycle 10 with the cylinder block 39 facing forward, vertical vibrations generated by the engine 21 can be reduced. That is, up and down vibration sources can be reduced to reduce up and down vibration, and front and rear vibration can be absorbed by the handlebar structure of the present invention.

As shown in FIG. 4, since the mounting portion 75 of the handlebar cover 32 is provided on the lower support portion 73 of the handle bar 34, it is not necessary to separately manufacture parts for supporting the lower part of the handlebar cover 32, thereby reducing the number of parts. At the same time, man-hours are saved, thereby reducing production costs.

In addition, since the handlebar cover 32 (front cover 32a, rear cover 32b) is attached to the mounting portion 75 and corner pieces 76, 76 (see FIG. 5 ) of the handlebar cover 32 of the handlebar 34, the elastic member 56, 56 and 57 are used for anti-vibration, and there is no need to attach the handlebar cover 32 to anti-vibration mechanisms such as other elastic members, which can reduce production costs.

Since the handlebar post 33 of FIG. 4 is a structure in which both arms 63, 63 formed by bending a pipe 62 are mounted on a base 61 mounted on a steering shaft 41, strength can be ensured in a simple shape, and light weight can be achieved. While quantizing and miniaturizing, it is possible to prevent interference with other components.

In addition, the shape of the elastic members 56, 56, 57 shown in the embodiment of the present invention is not limited to this shape, and may be any shape. For example, the plate may be bonded to the elastic member or the hardness may be adjusted using the shape of the elastic member.

Although the handle post 33 is formed in a Y shape, the shape of the handle post is not limited to the Y shape.

The shapes of the upper support parts 71 and 71 and the lower support part 73 of the handle bar 34 are arbitrary shapes.

Industrial Applicability

In the present invention, since the left and right upper support parts supporting the left and right side parts of the handle rod are arranged in front of the axis of the steering shaft, and the elastic members are fastened front and rear, the lower support part supporting the lower part of the handle rod is closer to the axis of the steering shaft. The elastic member is arranged rearwardly and fastened from the rear side, so if the force in the front-rear direction acts on the handle bar in the horizontal direction, the two points of the upper support part arranged in front of the axis of the steering shaft and the rear of the axis are used. The support force is supported by 1 point in total of 3 points of the lower support part, and the force is supported by the elasticity of the elastic members fastened to the front and rear in the compression direction, so the inclination angle of the handle bar in the front direction and the rear direction can be reduced.

In addition, since the upper support portion of the handle rod has a structure in which elastic members are fastened front and rear, the amount of protrusion protruding forward from the handle rod can be reduced. As a result, a large space can be provided on the front side of the handle bar, and interference between the upper support portion and electronic components such as instruments, headlights, left and right front turn signals in the handle bar can be prevented.

In addition, the upper support part of the handle bar fastens the elastic member from the front and rear, and the lower support part fastens the elastic member from the rear side, so if the vibration of the front and rear shaking is transmitted from the main frame to the handlebar post, the elastic member can utilize the compression. The elastic deformation in the direction absorbs the vibration of the swaying back and forth, and can effectively absorb the vibration of the swaying in the front-back direction.

In addition, in the present invention, since the substantially horizontal engine with the cylinder facing forward is suspended at the lower part of the main frame of the motorcycle, the vertical vibration generated by the engine can be reduced, and the vertical vibration transmitted to the handle bar can be reduced. . Moreover, coupled with the elastic member fastened in the front-rear direction, the vibration of the engine in the front-rear direction can be effectively absorbed, and the vibration transmitted to the handlebar can be reduced.

Moreover, in the present invention, since the mounting portion of the handlebar cover is provided on the lower support portion of the handle bar, it is not necessary to separately manufacture components for supporting the lower part of the handlebar cover, and the production cost can be reduced. In addition, by supporting the lower part of the handlebar cover on the mounting part of the handlebar cover and supporting the upper part of the handlebar cover on the handle bar, the vibration of the handlebar cover can be suppressed without using the mounting parts for attaching the handlebar cover. The part is additionally installed on the elastic member, which can reduce the production cost.

Furthermore, in the present invention, since the handlebar stay has a structure in which both arms formed by bending a pipe are attached to the base attached to the steering shaft, strength can be ensured in a simple shape, and weight reduction and miniaturization can be achieved. At the same time, interference with other components can be prevented.

As described above, according to the present invention, since the inclination angle of the handle bar in the front-rear direction with respect to the force in the front-rear direction is reduced, the interference of the connection portion on which the handlebar is mounted is prevented, and the vibration in the front-rear direction transmitted to the handlebar is absorbed. , so it is useful to use as a handlebar structure of a motorized two-wheeled vehicle.

Claims (4)

1. A handlebar structure of a motorized two-wheeled vehicle, the handlebar pillar is fixed on the steering shaft as a Y-shaped handlebar pillar in the front view, and the left and right sides and the bottom of the handle bar are respectively supported on the handlebar pillar by elastic components, It is characterized in that, The left and right upper support parts supporting the left and right side parts of the handle bar are arranged in front of the axis of the above-mentioned steering shaft, and the elastic members are fastened front and rear, The lower support portion supporting the lower portion of the handle bar is arranged behind the axis of the steering shaft, and fastens the elastic member from the rear side. 2. The handlebar structure of a two-wheeled motor vehicle according to claim 1, wherein a substantially horizontal engine with cylinders facing forward is suspended from the lower part of the main frame of the two-wheeled motor vehicle. 3. The handlebar structure of a motorcycle according to claim 1, wherein a handlebar cover mounting portion is provided on the lower support portion of the handle bar. 4. The handlebar structure of a motorcycle according to claim 1, wherein the handlebar stay has a structure in which two arms formed by bending a tube are attached to a base attached to a steering shaft.

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