JPS6218660Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a radiator fan shroud that covers a radiator fan of an automobile.

As shown in Fig. 1, an automobile fan shroud a is interposed between an engine b and a radiator c to cover the radiator fan d and to eliminate the gap between the radiator c and the radiator fan d, thereby improving the cooling effect. It serves as a protective cover. When installing this fan shroud a, since the engine b, radiator c, and radiator fan d are already fixed, one end is divided into upper and lower halves via a hinge part e, as shown in Fig. 2. A device in which a locking pawl f and a locking hole g are engaged has been used. The reason why one end is made into a hinge part e is because it is difficult to engage the other end due to devices arranged around it. When such a fan shroud a is integrally molded from synthetic resin, the locking pawl f protrudes from the dividing surface, so that the locking pawl f can be molded while leaving the hinge portion e at one end, as shown in Fig. 3. It is necessary to widen and mold the space between the divided bodies a′ and a′ to the extent that the fan shroud a
This required a larger mold h than the mold itself, which was uneconomical. In addition, in order to provide hinge force to the hinge part e, the hinge part e of the fan shroud a is bent several times immediately after molding, but since the fan shroud a itself is quite large, there is a drawback that the workability is poor.

In view of the above-mentioned problems, the present invention has been developed in a radiator fan shroud in which a pair of synthetic resin fan shroud bodies that are divided into two parts at the diameter position are joined to each other at the dividing surface. A hinge portion located at the joint surface of the pair of divided bodies is formed on a protruding piece having an engaging part that engages with an engaged part formed at the end of the other divided body, so that the fan shroud main body is completely divided into two parts. The mold is made smaller during molding by dividing the body, and the engaging part of the protruding piece protruding from the end face of the divided surface of one divided body is engaged with the engaged part of the other divided body during installation. The divided bodies are connected by a hinge portion at their joint surfaces, thereby facilitating the installation work.

Next, the structure of an embodiment of the present invention will be explained with reference to FIGS. 4 and 5 of the accompanying drawings.

Reference numeral 1 denotes the fan shroud main body, which is divided into two vertically at the diametrical position to form fan shroud divided bodies 2, 2. From one end of the divided surface 3 of one divided body 2 toward the other divided body 2, there is a divided body 2, A protruding piece 5 having a hinge part 4 located on the joint surface of the two parts is integrally provided, and the tip of this protruding piece 5 is bent toward the other divided body 2 to form a bent part 6, and the hinge part 4 and the bent part 6, an engaging part 7 consisting of an engaging hook having a neck protruding toward the other divided body 2.
are integrally protruded. Further, the end face of the other divided body 2 has a recess 8 into which the bent portion 6 of the protruding piece 5 is fitted.
An engaged portion 9 formed on one side of the recess 8 is integrally formed with the engaging hole into which the engaging portion 7 is inserted. Further, cutout steps 10, 10 are formed on the end faces of the divided surfaces 3, 3 of the divided bodies 2, 2, to form a space for operating the hinge part 4 inside the hinge part 4. Furthermore, an engaging hook 11 is protruded from one side of the dividing surfaces 3, 3 of the divided bodies 2, 2 at appropriate intervals, and an engaging hole 12 into which the engaging hook 11 engages is formed on the other side.

Next, the operation of this embodiment will be explained.

When molding, as shown in Fig. 4, the divided body 2,
The protruding piece 5 as well as the locking pawl 11 are molded between the two in a mold A, or a mold 1/2 of the mold A is used. After that, the protruding piece 5 of one of the divided bodies 2 is held and the hinge portion 4 is bent several times to maintain the hinge force.

In addition, when the divided bodies 2 are connected, the bent part 6 of the protruding piece 5 of one divided body 2 and the engaging part 7 consisting of the engaging hook are engaged with the recess 8 of the other divided body 2 and the engaging part 7 constituted of the engaging hole. The divided bodies 2, 2 are connected at one end by being engaged with the joining part 9. Furthermore, a hinge portion 4 formed on the projecting piece 5 is located at one end of the joint surface of the divided bodies 2, 2, and the divided bodies 2, 2 are connected to each other by this hinge portion 4 so as to be openable and closable. This fan shroud main body 1 surrounds the outer periphery of the radiator fan, and the locking pawl 22 is engaged with the locking hole 12.

In the above embodiment, the engaging part 7 is an engaging hook and the engaged part 9 is an engaging hole, but it is also possible to use the engaging part 7 as an engaging hole and the engaged part 9 as an engaging hook. .

According to the present invention, in a radiator fan shroud in which a pair of synthetic resin fan shroud bodies that are divided into two at the diametrical position are joined to each other at the dividing surface, one of the divided bodies integrally protrudes from one end of the dividing surface, and the other Since the hinge portion located at the joint surface of the pair of divided bodies is formed on the protruding piece having the engaging part that engages with the engaged part formed at the end of the divided body, the two parts are separated during molding. When molding the divided bodies with one mold, it is sufficient to arrange the two divided bodies in parallel and leave a gap equal to the protrusion of the protrusion, so conventional fan shrouds can be opened and closed by connecting them together at the hinge part. When molding, the mold is tilted to the left and right to some extent from the hinge part, so it is necessary to make the mold larger, but the mold can be made smaller as shown in Figure 4. By molding the divided bodies separately, the mold can be halved and the molding machine can be made smaller. In addition, the large fan shroud body is divided into two parts, making it convenient for storage and transportation. Further, a projecting piece is provided protruding from one end of the dividing surface of one of the divided bodies, and an engaging part that engages with the engaged part of the other divided body is formed on this protruding piece. Since the hinge portion has been formed, when installing it to the radiator in the engine room, the engaging portion of the projecting piece of one divided body must be engaged with the engaged portion of the other divided body in advance. Since the hinge part is located at one end of the joint surface of the pair of divided bodies and acts as a hinge, installation work in a narrow work space is facilitated, and there is no need to attach the hinge member, which is a separate member, to the pair of divided bodies using screws, etc. Since there is no such thing, the number of members can be reduced, and the trouble of screwing a separate hinge member to both divided bodies can be saved. Furthermore, since the hinge portion only needs to be made thinner in part of the protruding piece forming the engaging portion, the structure of the molding die does not become complicated in order to form the hinge portion. Also, when forming a hinge part,
After molding, it is necessary to repeatedly bend the hinge part to adjust the molecular arrangement of that part and maintain the hinge force. The workability is good because all the user has to do is to bend the hinge part by holding the hinge part, and there is no need to grasp and bend the large left and right pieces of the fan shroud body which are connected together at the hinge part as in the conventional case.

[Brief explanation of the drawing]

Fig. 1 is an explanatory view showing the mounting position of the fan shroud, Fig. 2 is a perspective view of a conventional fan shroud, Fig. 3 is a front view of the same as above, and Fig. 4 is a front view of the fan shroud showing an example of implementation of the present invention. Figure 5 is an enlarged view of a portion of the same as above. 1...Fanshiroud main body, 2...Divided body,
3...Joint surface, 4...Hinge part, 5...Protrusion piece, 7
...Engaging part, 9...Engaged part.

Claims (1)

[Scope of utility model registration request] In a radiator fan shroud that connects a pair of synthetic resin fan shroud bodies that are divided into two parts at a diametrical position and joined to each other at the dividing surface, the end portion of the other dividing body protrudes integrally from one end of the dividing surface of one divided body. 1. A radiator ante shroud, characterized in that a hinge portion located at a joint surface of the pair of divided bodies is formed on a protruding piece having an engaging portion that engages with an engaged portion formed in the above.