JPS58194681A - Shaft drive device for motorcycle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a shaft drive main current for a two-wheeled motor vehicle.

The applicant of the present application previously developed a device that connects the output shaft of an engine mounted in the middle of a vehicle body having front and rear wheels in the axial direction of a propeller shaft in a shaft cover extending rearward and a cam-type torque lifter on the shaft. A hydraulic damper is provided to buffer the forward and backward movements of the machine, and the hydraulic damper prevents the self-excited vibration of the body. However, in this case, the temperature of the oil inside the hydraulic pipe is raised by its operation, and it is desirable to provide an oil cooling means.

The object of the present invention is to provide a device that satisfies such demands, and the output of an engine mounted in the middle of a vehicle body having front and rear wheels is transmitted to a propeller 2 shaft in a shaft cover extending rearward. (Sail surprise 1, so that it rotates with the shaft.

The workpiece consists of an outer case of pigeon hydraulic dunnons with fins protruding from the outer periphery.

Next, an example of implementing the present invention will be described in a separate sheet.

In the drawing, (1) shows the body of a motorcycle, and the wrinkled body (1)
is equipped with front and rear wheels (2) (31) and an intermediate engine (4) as shown in FIG. 1, and the output shaft (5) of the engine (4) is connected to the rear as shown in FIG. Shaft cup consisting of rear fork supporting wheel (3) -+6
) and the propeller shaft (7) extending inside the shaft (7).
) The input shaft (9) K connected to the rear wheel (3) is connected via the cam type torque head/arm (6) on the rear wheel (3), and the input shaft (9) is connected to the rear wheel (3). wheel hub (38)K
The torque damper 4 (8) is composed of a binion shaft that integrally extends forward from a binion aυ that meshes with a bevel gear Ql that is connected via a driven 7 lange (3b). (8a
) and the front glue lid (8b) which is pressed by the K spring (8b).
C), the lifter (8C) is engaged with a spline so as to be able to slide freely in the direction of the K-axis, and 1 the Dan A cam (8a) fI: on the rear end outer periphery. The wrinkle input shaft (9) K is connected via the joint a3, and thus the damper cam (8a) and the lifter (
According to the relative rotation with 8e), the lifter (8c) is jI
As shown by the dotted line in Fig. 5, the #Dan iR cam (8a) is pushed forward in the axial direction against the armpit spring (8b), so that the engine torque fluctuation is learned from this, and furthermore, the A hydraulic damper α3 is provided on the propeller shaft (7) to dampen the forward and backward movement of the lifter (8@) in the axial direction.

In this case, the hydraulic pressure damper is connected to the torque damper (
Although it is possible to provide it separately from .

That is, the propeller shaft (force), the torque arm (8
) and covers it oil-tightly.
i4t-installed to rotate together, the lifter (8C)
At the same time, the lifter (8c) is brought into contact with the case (141K li!) via the screw 11 ton ring CLe on the outer periphery, and this is connected to the hydraulic damper J (piston 11). It was designed to have a reduced size that can also be used as a.

The above is not completely different from the previous proposal, but according to the present invention, the outer case α of the hydraulic cylinder /] 9α and the outer periphery of the outer case α? ) was installed.

In the illustrated example, the skeleton fin αD is formed in a spiral shape as shown in FIG.
) According to the rotation of the outer case α due to the rotation of the outer case α, outside air is blown from the front ventilation hole Q barrel toward the rear ventilation hole αK. , in this case, the shaft cover (even if there is no ventilation hole Q8 (li)
6) The stirring of the air inside by the fins ut) prevents hot air from staying near the outer circumferential surface of the outer case Q4), and the hot air reaches the entire circumferential surface of the shaft cover (6), causing the shaft cover ( 6) The entire circumferential surface effectively functions as a heat dissipation surface to the outside, providing effective cooling of the oil in the outer case 00, which forms radial fins aη as shown in Figure 84. The same is true.

The drawing shows a protective net placed over the ventilation hole 08 to prevent foreign matter from entering.

Next, to explain its operation, when the lifter (8c) moves back and forth in the axial direction due to torque fluctuation, its kinetic energy is absorbed by the buffering action of the hydraulic damper 0, that is, the damping action by the viscous resistance of the oil flowing through the orifice hole ai. hand,
The lifter (8
This is prevented by the self-excited vibration of the outer case (14), which causes a rise in the temperature of the oil inside the outer case (α), but the heat is absorbed by the fins on the outer periphery of the outer case (14) as it rotates.
When based on DgK Honsha & A, fins on the outer periphery are installed protruding from the outer case of the hydraulic damper R attached to rotate together with the Zoropera shaft.In addition to increasing the heat dissipation area of the sales outer case, the shaft The heat from the 19-layer outer case has the effect of preventing shading due to the agitation and blowing action of the air within the cover.

[Brief explanation of the drawing]

FIG. 1 is a side view of an example of a two-wheeled motor vehicle equipped with the device of the present invention, FIG. 2 is a cutaway plan view of an example of the device of the present invention, FIG. 3 is a perspective view of the main parts, and FIG. The figure is a perspective view of the main part of the modified example, and FIG. 5 is a diagram illustrating the operation of the torque damper 9. (1)...Vehicle body (2)...Front wheels (
3)...Rear wheel (4)...Engine (
5)...Output shaft (6)...Shaft cutter 9-(force...Zorobera 7yaft (8)...Torque Danno (8c)...Lifter (9)...Input shaft 〇4・・Hydraulic damper θ lift...Outer case α force...2 people outside the fin ・1 Figure Atsushi 4

Claims (1)

[Claims] The output shaft of the engine, which is mounted in the middle of the vehicle body with front and rear wheels, is connected to the input shaft (connected A hydraulic damper is provided on the shaft to buffer the axial forward and backward movement of the lifter of the torque damper, and a hydraulic damper is provided on the shaft, and a hydraulic damper is provided on the shaft.
: A shirt drying device for a two-wheeled motor vehicle, which has outer fins protruding from the outer case of the hydraulic damper which is rotatably mounted.