JPS624074Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a radiator cover mounting structure for a motorcycle equipped with a water-cooled engine.

For motorcycles equipped with water-cooled engines, a radiator is essential for cooling the engine, and the radiator is usually placed above the space formed by the main pipe and down tube of the body frame. . A radiator has a large number of small-diameter pipes, fins, etc. through which cooling water flows, and is vulnerable to external shocks, so it is usually covered and protected with a radiator cover.

By the way, conventionally, the radiator cover was attached to the main body using fasteners such as brackets and bolts, which resulted in an increase in the number of parts.
In addition, the manufacturing process of the cover requires an increase in man-hours, and the processing of the mounting portion requires high precision, resulting in disadvantageous results such as a decrease in productivity and a rise in production costs.

The inventor of the present invention has devised the present invention in view of the above-mentioned inconveniences in mounting this type of radiator cover, and to effectively and rationally solve these problems.

The purpose of the present invention is to arrange a radiator cover integrally molded from an elastic material such as synthetic resin so as to be continuous from the lower side of the fuel tank located at the upper rear of the radiator and to cover the radiator. At the same time, a pair of engaging protrusions are provided on the lower surface of the radiator to serve as attachment parts to the vehicle body, and these engaging protrusions are engaged and held by the down tube,
It is easy to install without requiring special fasteners or tools, reduces the number of components of the cover itself, and does not require a high degree of processing precision when manufacturing it.
It is an object of the present invention to provide a radiator cover mounting structure for a motorcycle, which can improve productivity and reduce manufacturing costs by reducing the number of processing steps.

A preferred embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

Fig. 1 is a side view of a motorcycle equipped with a radiator cover according to the present invention, Fig. 2 is a perspective view of the radiator cover, Fig. 3 is an enlarged view of the vicinity of the radiator in Fig. 1, and Fig. 4 is a side view of a motorcycle equipped with a radiator cover according to the present invention. 3 is a sectional view taken along line 4-4, FIG. 5 is a view taken in the X direction of FIG. 3, and FIG. 6 is a view taken in the Y direction of FIG.

In FIG. 1, the body frame of a motorcycle 1 consists of a main frame 2, a down tube 3, a sub frame 4, etc., and a water-cooled engine 5 is mounted in the space formed by the main frame 2 and the down tube 3. Further, a radiator 6 for cooling the engine 5 is arranged above the same space. A carburetor 7 and an exhaust pipe 8 are connected to the engine 5.

A fuel tank 9 is located above and behind the radiator 6.
is provided, and a seat 10 is further installed behind this. A radiator cover 11 is attached and supported continuously from the lower side of the fuel tank 9 and so as to cover the radiator 6 by a method described later.

A rear fork 12 has its front end pivoted to the center of the vehicle body by a pivot shaft 13 so as to be able to swing up and down, and a rear wheel 14 is rotatably supported at the rear end of the rear fork 12.

On the other hand, a front wheel 17 is rotatably supported on the lower end of a front fork 16 extending below the front handle 15.

By the way, the radiator cover 11 is made of an elastic material such as synthetic resin and is integrally molded into a substantially box shape as shown in FIG. Also, a pair of engagement protrusions 18, 18 forming a substantially figure eight shape are provided on the lower surface, and these protrusions 18, 18 have engagement parts 18a, 18a that open outward in a semicircular shape.
are formed respectively. Also, both side walls 1 of the cover 11
Rod-shaped engaging protrusions 19, 19 are integrally provided on the upper portions of 1c, 11c so as to protrude inwardly and face each other.

On the other hand, as shown in FIGS. 3 and 4, an engagement hole 20 is formed at a substantially intermediate position between the seam flanges 9a, 9a provided on the lower side of the fuel tank 9, and each engagement hole 20 is filled with rubber. A grommet 21 formed of an elastic material such as the
It is set somewhat smaller than the outer diameter of 9.

The radiator cover 11 is attached to the vehicle body in the following manner.

That is, first, the engaging portions 18a, 18a of the engaging protrusions 18, 18 provided on the lower surface of the cover 11 are engaged with the two left and right down tubes 3a, 3b as shown in FIGS. 5 and 6. Slide the entire cover 11 upward. Therefore, two down tubes 3
Since the distance between a and 3b is gradually narrowed upward, the lower part of the cover 11 is gradually firmly attached to the down tubes 3a and 3b by the elastic force of the engaging protrusions 18 and 18. will be retained.

When the entire cover 11 is positioned at the height shown in FIG.
The distance between the engagement holes 20 and 20 is expanded to a greater extent,
When these protrusions 19, 19 are inserted into the grommets 21, 21 fitted into the engagement holes 20, 20, as shown in FIG. 4, the cover 11 is completely attached and supported to the vehicle body.

Since the radiator cover 11 is thus integrally molded, the number of its constituent parts can be reduced. In addition, since the cover 11 is installed using its own elastic force, there is no need for mounting brackets, bolts, or other fasteners, and the cover 11 can be installed without the need for tools.
In addition to being able to be easily and quickly removed, since the manufacturing of the cover 11 does not require precision in processing the attachment part, the number of processing steps can be reduced.
It is possible to improve productivity and reduce manufacturing costs.

In the above embodiments, the engaging protrusion was provided on the radiator cover side and the engaging hole was provided on the fuel tank side.
On the contrary, the engagement protrusion may be provided on the fuel tank side and the engagement hole may be provided on the radiator cover side.

As is clear from the above description, according to the present invention, the radiator cover integrally formed of an elastic material such as synthetic resin is continuous from the lower side of the fuel tank located at the upper rear part of the radiator and covers the radiator. In addition, a pair of engaging protrusions are provided on the lower surface of the radiator cover to serve as an attachment part to the vehicle body, and these engaging protrusions are engaged and held in the down tube, so special fasteners and Installation is easy without the need for tools, and the number of component parts of the cover itself can be reduced.Also, it does not require a high level of machining precision to manufacture it, reducing machining man-hours, improving productivity and reducing manufacturing costs. can be achieved.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a side view of a motorcycle equipped with a radiator cover according to the present invention, FIG. 2 is a perspective view of the radiator cover, and FIG. An enlarged view of the vicinity of the radiator section, FIG. 4 is a sectional view taken along the line 4-4 in FIG. 3, FIG. 5 is a view in the X direction of FIG. 3, and FIG. 6 is a view in the Y direction of FIG. . In the drawings, 2 is a main frame, 3 is a down tube, 5 is a water-cooled engine, 6 is a radiator, 9 is a fuel tank, 11 is a radiator cover, and 18 is an engaging protrusion.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) Water cooling is installed above the space formed by the main pipe above the vehicle body frame and a pair of left and right down tubes whose space gradually narrows as they move upward. In a motorcycle in which an engine radiator is arranged and a fuel tank is arranged above and rearward of the radiator, a radiator cover that continuously covers the radiator from the lower side of the fuel tank is integrated with an elastic material such as synthetic resin. At the same time, a semicircular engaging part opening outward is formed on the pair of left and right engaging protrusions provided on the lower surface of the radiator cover, and the pair of left and right engaging protrusions are inserted through the engaging part. A radiator cover mounting structure for a motorcycle, characterized in that the radiator cover is elastically engaged and held inside the pair of left and right down tubes, and an upper side wall of the radiator cover is attached to a lower side of the fuel tank. (2) Forming a recess on one of the lower side of the fuel tank and the upper side of the side wall of the radiator cover, and a protrusion on the other, and fitting the recess and the protrusion to attach the radiator cover. A radiator cover mounting structure for a motorcycle as set forth in claim 1 of the utility model registration claim, characterized in that the radiator cover mounting structure is supported.