JPS6082788A - Shroud for radiator - Google Patents

Abstract

PURPOSE:To obtain the shroud for a general-purpose radiator, which can be manufactured very easily and cost thereof is low, by forming the shroud by a cylindrical body and a stay. CONSTITUTION:A shroud 15 is formed by combining simple parts, such as a cylindrical body 18 covering a motor fan 14, an upper cover 17, an upper stay 16 and a lower side stay 19. Brackets 20, 20 are fixed to both side sections of the center on the back of a radiator proper, and both ends 19a, 19a of the lower side stay 19 for the shroud 15 are combined with the brackets 20, 20 by bolts, etc., thus fastening the shroud 15 and the motor fan 14 to the radiator proper. The cylindrical body 18 can be manufactured freely in dimensions because it can be formed by a wound ring material. The upper stay 16 and the lower side stay 19 can also be manufactured freely by properly bending a channel-shaped long- sized blank.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a shroud of a radiator having a novel structure.

Vehicles such as motorcycles and automobiles having a water-cooled internal combustion engine are equipped with a radiator, and this radiator has a motor fan, and the core is forcibly air-cooled by the rotation of the motor fan.

Conventionally, the motor fan mentioned above is equipped with a shroud,
The shroud is attached to the radiator body to cover the motor fan, and also has the function of fixing the motor fan to the radiator body.

The structure of a conventional shroud is generally formed by a full-drawing press method, using a special press mold to form a predetermined complex structure that includes a part of the cover that surrounds the fan, a frame part that attaches the motor fan, and an air vent hole. It is integrally formed into a shape, and is press-molded as a single member while removing unnecessary parts. Therefore, the cost is high due to the use of a special press mold and poor material yield, and the shroud itself can only be used as a special product, making it inflexible and inconvenient. are doing.

An object of the present invention is to provide a radiator shroud that has a simple structure and can be manufactured extremely easily, thereby reducing manufacturing costs, making it possible to use it for general purposes, and in particular, making it possible to produce a wide variety of products in small quantities. It is in.

A feature of the present invention is that, in a radiator for a vehicle, a shroud of the radiator is constituted by a cylindrical body surrounding the motor 7 and a stay that is fixed to the radiator body and supports the motor fan. There is a particular thing.

Embodiments of the present invention will be described below based on the accompanying drawings.

In Figure 1, the radiator 1 has tanks 2 on both sides of the core.
, 3, the tank 2 on the right side of the figure is provided with an inlet vibe 4 at the top, and the tank 3 on the left side is provided with an outlet pipe 5. That is, this radiator 1 is a horizontally long radiator, and a cross-flow type is adopted. 6 at the top of tank 3 is a feelernet.

A core 7 is provided between the tanks 2 and 3, and this core 7 includes a plurality of communication pipes 8 that communicate the tanks 2 and 3, and fins connected to the communication pipes and arranged around the communication pipes. It consists of 9. The core 7 and the tanks 2 and 3 are integrated by brazing or the like with plates 10 and 11ffi interposed therebetween. Further, plate-shaped members 12 and 13 are provided on the upper and lower surfaces of the core 7 to cover and protect the upper and lower surfaces of the core 7, respectively.

In the above, the cooling water that has been circulated from the engine flows through the tank 2, the communication pipe 8, and the tank 3 in this order, and when flowing through the communication pipe 8, the cooling water flows through the gap between the fins 9 and is filtered into the tank 9.
The cooling water is forcibly cooled by air. The air flow in the fins 9, that is, the cooling wind, is generated by the movement of the vehicle itself, but is mainly generated by the motor fan 14 disposed on the back side of the radiator core 7.

The motor fan 14 consists of a fan facing the core 7 and a motor attached to a shroud 15 forming a cover of the motor fan 14 to rotate the fan, and wind is generated by rotation of the fan.

If the shroud 15 is divided into component parts, the upper stay 1
6, an upper cover 17, a flat cylindrical body 18 made of a plate-shaped wound ring material, and a lower stay 19.

The cylindrical body 18 is a cylinder having a diameter that surrounds the lateral periphery of the motor fan 14, and is provided with an upper cover 17 extending slightly rearward at the upper part, and further has both ends bent downward on the upper surface of the upper cover 17. A channel-shaped upper stay 16 with a U-shaped curved cross section is provided, and a frame is provided on the other lower side to support the lower part of the cylindrical body 18 in a lateral direction in the radiator 1.The overall shape is approximately A channel-shaped lower stay 19 is provided which is U-shaped and has a U-shaped cross section.

The cylindrical body 18, the upper cover 17 and the lower stay 19, and the upper cover 17 and the upper stay 16 are integrated by welding or the like, and the shroud 15 is formed as a unit.

In the above, the rear bent end portion 16b of the upper stay 16
and the rear center portion of the lower stay 19 are included in the same vertical plane, and the attachment portion 16b-1 at the tip of the bent end portion 16b and the attachment portion 19-1.19-2 of the lower stay 19 is constructed to form a substantially equilateral triangle. Mounting part 16b-1, 19-
1 and 19-2, the motor of the motor fan 14 is fixed using bolts or the like. Further, the front bent end 16a of the upper stay 16 and both ends 4-19a, 19a of the lower stay 19 serve as joints for fixing the shroud 15 to the radiator body.

On the back of the radiator body, as shown in FIG. 1, platens 20.20 are fixedly installed on both sides of the center, and both ends 19at19a of the lower stay 19 of the shroud 15 are attached to brackets 20.20 with bolts or the like. The shroud 15 and the motor fan 14 are thereby fixed to the radiator body.

As described above, the shroud 15 according to the present invention can be formed by combining simple parts such as the cylindrical body 18 that covers the motor fan 14, the upper cover 17, the upper stay 16, and the lower stay 19. Since the cylindrical body 18 can be formed from a wound ring material, it can be made as appropriate depending on the size of the fan, and can be manufactured dimensionally freely. In addition, the upper stay 16 and the lower stay 19 are made of channel-shaped long material with fan size.
That is, since it is formed by appropriately folding and bending according to the diameter and width of the cylindrical body 18, dimensionally flexible manufacturing is possible.

Then, when the shroud 15 is formed by welding the cylinder 18, the upper cover 17, the upper stay 16, and the lower stay 19,
The stays 16 and 19 provide a means for attaching the shroud 15 to the radiator body and a means for attaching the motor fan 14 to the shroud 1.
5, and a space S1 for the air vent hole is also inevitably created by assembly.

The upper stay 16 and the lower stay 19 are formed in a channel shape and are strong in strength.

Note that in the above embodiment, since the upper cover 17 is provided,
The motor fan 14 can be shielded from above.

FIG. 2 shows a second embodiment of the shroud according to the invention.

In this embodiment, the upper cover 17 is omitted and the cylindrical body 28 is
and the shroud 2 from the upper stay 26 and the lower stay 29.
5. Since there is no portion that bulges out backwards due to the absence of the upper cover, there is an advantage that the stays 26 and 29 are dimensionally shorter. The shapes of the cylindrical body 28, upper stay 26, and lower stay 29 are the same as in the first embodiment.

FIG. 3 shows a central longitudinal sectional view of the shroud 25 in FIG. This makes it possible to clearly understand the positional relationship between the cylindrical body 28, the upper stay 26, and the lower stay 29, as well as the channel shape of the stays 26 and 29.

Of course, the shroud of the radiator according to the present invention can be applied to a down-flow radiator, and in the above embodiment, the cylindrical body 18 has a cylindrical shape made of a flat plate-like wound ring material. It may be a polygonal cylinder that can be used as a shroud for a motor fan, and is not limited to the embodiment.

As is clear from the above description, according to the present invention, since the shroud is formed by a cylinder and a separate stay, a device such as a dedicated press mold is not required, and the material yield is reduced. The simple shape of each part and the structure of the shroud make it easy to assemble.Furthermore, when a rolled ring material is used, it can be adapted to any fan size, and on the other hand, the stay Since the cutting and bending of the channel material can be changed as appropriate, the degree of freedom in design can be increased and versatility can be achieved. As a result, a wide variety of products can be produced in small quantities. In addition, since the stay is used to both attach the shroud itself to the radiator body and to attach and support the motor fan, there is an advantage that the structure is simpler.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a rear perspective view of a radiator according to the present invention, FIG. 2 is a perspective view showing a modified embodiment of the shroud, and FIG.
FIG. 3 is a central vertical cross-sectional view of the shroud in the figure. In the drawing, 1 is a radiator, 2 and 3 are tanks, 7 is a core, 8 is a communication pipe, 9 is a fin, 14 is a motor fan, 1
5.25Fi shroud, 16 and 26 are upper stays, 1
7 is an upper cover, 18.28 is a -Q-sM^ cylinder, and 19.29 is a lower stay. Patent applicant Honda Motor Co., Ltd. Toyo Radiator Co., Ltd. Representative Patent attorney 1) Yong - Immediate question Patent attorney Kuni Ohashi Patent attorney Yu Koyama -10-

Claims (1)

[Claims] A shroud for a radiator for a vehicle, characterized by comprising a cylindrical body surrounding a motor fan, and a separately formed stay that fixes the cylindrical body to a radiator body and supports the motor fan. .