JPS59109475A - Radiator 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 radiator device for a motorcycle.

In motorcycles, the radiator is generally placed diagonally above the rear of the front wheel where the running wind acts effectively, but in order to improve cooling efficiency, a sub-radiator is provided in addition to the above-mentioned radiator. A vehicle in which a radiator is disposed between the front wheels and the engine is known. At this location where the subradiator is installed, mud, sewage, etc. are often splashed up by the front wheels, so measures against mud, sewage, etc. are desired.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a radiator device for a motorcycle that can prevent mud, sewage, etc. from entering the device and can efficiently introduce only cooling air into the radiator.

In order to achieve this object, in the radiator device for a motorcycle according to the present invention, a radiator is provided on the front surface of the under cowl that covers the radiator disposed between the engine and the front wheel, and extends in the left-right direction of the vehicle body. A front grill consisting of a plurality of air guide plates arranged vertically and adjacently at predetermined intervals is provided, and a net-shaped rear grill is disposed behind the front grill so as not to come into contact with the radiator; An opening for draining water is formed on the bottom surface of the under cowl.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, an engine 4 is disposed between a front wheel 2 and a rear wheel 3 of a motorcycle 1, and is attached to a frame 5 via a stay (not shown).

A main radiator 6 is disposed diagonally above and behind the front wheel 2, and a sub-radiator 7 is further disposed between the front wheel 2 and the engine 4. The main radiator 6 is attached to the frame 5 via a stay 8 so as to be inclined forward with respect to the direction of travel of the vehicle (to the left in the figure), and the sub-radiator 7 is approximately upright with respect to the direction of travel, with its lower end facing the front wheel 2.
It is attached to the frame 5 via a stay 9 so as to be located below the zero rotation center O. Subradiator 7
is surrounded by an under cowl 10 as shown in FIGS. 2 to 4.

In FIGS. 2 to 4, the under cowl 10 has a front portion 11 that is slightly inclined rearward with respect to the traveling direction of the vehicle;
It consists of a lower part 12 that extends rearward from the front part 11 along the frame 5 and has a streamlined outer periphery.
An opening 288.2'8b for draining water is formed in a. Then, it is attached to the frame 5 by screwing through attachment holes 14a and 14b formed at the upper end of the front part 11 and the rear end of the lower part 12, respectively. One opening 28b for draining water is located at the rear of the Zabrajeta 7. A front grille 15 as shown in FIGS. 5 and 6 is provided in the front opening 13 of the under cowl 10 so as to be inclined rearward as a whole with respect to the direction in which the vehicle is traveling.

5 and 6, the front grille 15 consists of a plurality of air guide plates 16 extending in the left-right direction of the vehicle body (left-right direction in FIG. 5) and arranged vertically adjacent to each other at predetermined intervals.
Two protrusions 17a and 17b protruding from the upper end are fitted into fitting holes 18a and 181) (not shown in FIG. 4) provided above the front opening 13 of the under cowl 10, and from the lower end Mounting hole 1 with one mounting part extending in a generally inverted cross-section
9a is screwed to the bottom surface 10a (see FIG. 2) of the under cowl 10. As is particularly clear from Fig. 6, the plurality of air guide plates 16 are installed so that the front side of the vehicle body is higher than the rear side.According to this, generally speaking, the cooling air is mostly directed from above, and vice versa. Since most of the mud and the like fly from below, the cooling air easily enters the under cowl 10, while the mud and the like are repelled by the lower surface of the air guide plate 16 and are difficult to enter.

As is particularly clear from FIGS. 5 and 6, behind the front grill 15, there is a net-shaped rear side as shown in FIG. A grill 20 is provided, and a predetermined interval is provided between the rear grill 20 and the subradiator 7 so that they do not come into contact with each other. As shown in FIG. 7, the rear grille 20 has a mesh portion 21 made of steel, aluminum, plastic deck, etc. stretched over a holder 22, and the size of the mesh corresponds to the number of conductors in the front grille 15. The mesh is formed so that the distance between the wind plates 16 or less is equal to or less, and the opening direction of the mesh is directed upward rather than horizontally. According to this, mud and the like that have passed through the front grille 15 are reliably blocked by the rear grille 20. Rear grill 2
0 is fitted into the upper fitting hole 15a of the front grille 15 from the back side with a protrusion 23 fixed to the upper part of the holder 22, and is fitted with a screw 25 into the mounting hole 24a of the mounting part 24 fixed to the lower part of the holder 22. The screws 25 are screwed into the holes 26 formed in the mounting portion 19 of the front grill 15.
It has an outer diameter larger than the inner diameter of the hole 26, and is threaded into the hole 26 while cutting a screw hole. The rear grill 20 is removable from the under cowl 10 together with the front grill 15, and is configured such that the lower end of the mesh portion 21 extends downward from the lower end of the subradiator 7.

Next, the operation of the radiator device according to the present invention will be explained.

When the vehicle is running, the front fender 2 is attached to the front grille 15.
The traveling wind that entered from above along 7 is passed through multiple wind guide plates 1
6 and introduced into the under cowl 10,
Then, the air passes through the mesh portion 21 of the rear grille 20 and reaches the subradiator 7 due to the wind pressure. On the other hand, mud, sewage, etc. that splash up from below against the front grille 15 are prevented from directly entering the under cowl 10 by attaching them to the lower surface of the baffle plate 16, and the kinetic energy of the mud, sewage, etc. is guided. By attaching it to the wind plate 16, it is converted into potential energy, and by natural fall, it is attached to the mesh part 21 of the rear grille 20, and the surface tension of the mesh is used to transport mud, sewage, etc. to the lower end of the mesh part 21. Mud, sewage, etc. that have fallen from the lower end of the mesh portion 21, which is prevented from entering the under cowl 10 by removal, are discharged to the outside from the water-fire openings 28a, 28b of the under cowl 10.

Other embodiments of the present invention are shown in FIGS. 8 to 14. In this embodiment, a mounting hole 29 is formed in the lower part of the front grille 15 as shown in FIGS. 12 and 13.
As shown in FIG. 14, holes 30 for mounting are also formed in the lower part of the rear grille 20, and the front grille 15 and the rear grille 20 are connected to the under cowl 10 by an upper end projection 1.
7a.

17b is the fitting hole 18a, 18b1. l: Fitted and 8th
As shown in FIGS. 11 to 11, a screw (
(not shown) from the front of the under cowl 10 through the holes 29 and 30. According to this configuration, the front grill 15 and the rear grill 20 can be easily removed from the front of the under cowl 10 even when the under cowl 10 remains attached to the vehicle body.

The mesh of the mesh part 21 of the rear grille 20 is the 14th mesh.
As is clear from the figure, it is formed vertically and improves the downward flow of adhered mud and sewage. Further, the lower end of the mesh portion 21 extends downward from the lower end of the holder 22, so that even if a large subradiator 7 is used, the overall size of the rear grille 20 can be reduced. No change (but the lower extension part 21a of the mesh part 21
Since the subradiator 7 can be located below the lower end of the subradiator 7, mud, sewage, etc. adhering to the mesh portion 21 can be reliably dropped below the subradiator 7.

Further, as shown in FIGS. 8 to 11, the bottom surface 10a of the under cowl 10 is formed with openings 28a and 28b for water boiling, as in the above-described embodiment, and the rear grill 20 is provided with openings 28a and 28b. Mud, sewage, etc. that have fallen from the lower end of the mesh portion 21 are discharged to the outside through the openings 28a and 28b so as not to accumulate on the bottom surface 10a of the under cowl 10. In addition, in FIG. 10, 33 is an exhaust pipe.

A modification of the rear grille 20 is shown in FIG. 15, in which a connecting portion 3 is provided between the holder 22 and the mounting portions 23 and 24 in order to widen the distance between the rear grille 15 and the mesh portion 21.
2 are integrally provided. According to this configuration, the amount of mud, sewage, etc. that naturally falls from the air guide plate 16 of the front grille 15 and adheres to the mesh portion 21 is reduced, so that the cooling air can pass through the mesh portion 21 more easily.

In addition, as shown in FIG. 16, by attaching the rear grill 20 in a forwardly inclined state with respect to the front grill 15, the flow of cooling air can be used, so that dirt and sewage attached to the mesh part 21 can be lowered. This will improve the flow to.

Note that the present invention is not limited to application to a motorcycle equipped with two radiators, the main radiator 6 and the sub-radiator 7, but is equipped with a single radiator, and this radiator is connected to the front wheel 2 and the engine 4. The present invention can also be applied to a motorcycle having a configuration in which it is disposed between the two.

As described above, according to the present invention, on the front surface of the under cowl that covers the radiator disposed between the engine and the front wheels, the under cowl extends in the left-right direction of the vehicle body and is arranged vertically adjacent to each other at predetermined intervals. A front grill consisting of a plurality of air guide plates is provided, and a net-like rear grill is placed behind the front grill so as not to touch the radiator, thereby preventing dirt, sewage, etc. from entering the under cowl. This means that it can be reliably prevented and introduced into the radiator only for cooling purposes.

[Brief explanation of drawings]

FIG. 1 is a side view including a partial cross section of a motorcycle equipped with a radiator device according to the present invention, and FIGS. 2 to 7 are diagrams for explaining one embodiment of the present invention, and FIG. , 3rd
Figure 4 is a plan view, side view, and front view of the under cowl, Figure 5 is a front view of the front grill, Figure 6 is between A- and AftAft in Figure 5, and Figure 7 is the rear grill. Front view,
8 to 14 are diagrams for explaining the embodiment of the present invention, and FIGS. 8, 9, and 10 are a plan view, a side view, a front view, and a front view of the under cowl. Figure 11 is the first
12 is a front view of the front grill, FIG. 13 is a sectional view taken along C-C of FIG. 12, FIG. 14 is a front view of the rear grill, and FIG. FIG. 16 is a cross-sectional view showing a modified example of the rear grill. FIG. 16 is a cross-sectional view showing a modified example of the rear grill in a raised position. Explanation of symbols of main parts 2...Front wheel 4...Engine 6...Main radiator 7...Sub radiator 10...Under cowl 15 ...Front grille 16... Air guide plate 20 ... Rear grille Applicant Honda Motor Co., Ltd. Agent Patent Attorney Motohiko Fujimura Figure 12 Figure 13 Figure 16 3 9a Procedural formalities (methods) % formula % 1. Indication of the case 1982 Patent Application No. 220849 2. Name of the invention Motorcycle radiator device 3. Person making the amendment Case and relationship Patent applicant address 6-27-8 Jingumae, Shibuya-ku, Tokyo Name
Name (532) Honda Motor Co., Ltd. 4, Agent 104 Address 3-10-9-6, Ginza, Chuo-ku, Tokyo Subject of amendment Drawings

Claims (1)

[Claims] a radiator disposed between an engine and a front wheel; an under cowl that covers the radiator; and a plurality of radiators arranged vertically adjacent to each other at predetermined intervals and extending in the left-right direction of the vehicle body on the front surface of the under cowl. A radiator device for a motorcycle comprising a front grill made of an air guide plate, wherein a net-shaped rear grill is disposed behind the front grill without contacting the radiator, and the A radiator device for a motorcycle, characterized in that an opening for draining water is formed on the bottom surface of the radiator device.