JPS628339Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement of a radiator equipped with a shroud.

[Conventional technology]

Conventionally, a radiator and a shroud have been installed using insert nuts in the resin lower tank 1 and the resin upper tank 2 of the radiator body R, respectively, as shown in Japanese Utility Model Application Publication No. 55-23443 or Figs. 1 to 3, respectively. 3 and 4, and shroud 5.
Bolt holes 8 in the lower mounting piece 6 and upper mounting piece 7
, and the shroud 5 is attached to the radiator body R using the bolts 9 and the insert nuts 3 and 4. In addition, in the figure, F is a fan attached to the shroud 5.

[Problem that the invention attempts to solve]

However, the radiator R equipped with the shroud 5 has the problem that the insert nuts 3 and 4 have to be embedded at the same time when forming the lower tank 1 and the upper tank 2, which makes tank forming complicated. . In addition, in order to securely fix the insert nuts 3 and 4, knurling is required on the outside, which tends to increase costs. Furthermore, since the shroud 5 is installed by tightening four bolts 9 and insert nuts 3 and 4 at four locations, the tightening work is naturally complicated.
Moreover, multiple bolts 9 and insert nuts 3,
4, the radiator body R and shroud 5 must be precisely processed, and the positioning must also be accurate.
Various problems arose.

[Purpose of invention]

This invention was devised in view of the actual situation,
A radiator with a shroud that can be easily molded into a tank to reduce molding costs, the shroud can be easily attached, the machining accuracy of the radiator body and the shroud is not required, and positioning can be easily performed. The purpose is to provide

[Means for solving problems]

In order to achieve this purpose, the present invention has a taper mounting system in which a mounting piece provided at the top of the shroud is screwed onto the resin upper tank, and a tapered mounting piece provided at the bottom of the shroud is fitted onto the resin lower tank. It has grooves.

[Effect of invention]

According to the present invention, it is only necessary to fit the tapered mounting piece at the lower part of the shroud into the tapered mounting groove of the lower tank, and to screw only the upper part of the shroud to the resin upper tank. This allows the shroud to be easily and reliably fixed to the radiator body with good stability.

[Example of idea]

Hereinafter, embodiments of the present invention will be described in detail based on FIGS. 4 to 12.

FIG. 4 is a rear view of a radiator R equipped with a shroud according to this embodiment, in which a resin lower tank 11 and a resin upper tank 12 are attached above and below the core 10. And in the lower tank 11,
As shown in FIG. 8, two tapered mounting grooves 14 having notches 13 are arranged in parallel, and the upper tank
As shown in FIG. 6, two U-shaped nut storage grooves 16 in which bolt holes 15 are bored are arranged side by side.

Reference numeral 17 denotes a shroud for guiding the fan wind of the fan F. At the bottom of this shroud 17, as shown in FIG. At the upper part of the shroud 17, a mounting piece 19 is provided which is screwed into the nut storage groove 16 via a bolt 22. In addition, 20 is a bolt hole drilled in the mounting piece 19, and 21 is a nut stored in the nut storage groove 16.

Then, as shown in FIG. 7, after fitting the taper mounting piece 18 of the shroud 17 into the tapered mounting groove 14 of the resin lower tank 11 and storing the nut 21 in the nut storage groove 16, the resin upper tank 1
A bolt 22 is inserted into the bolt hole 15 on the second side and the bolt hole 20 on the shroud 17 side, and the upper part of the shroud 17 is tightened with this bolt 22 and the nut 21, so that the shroud 17 is attached to the radiator body R. There is.

Since this embodiment is configured in this way, the tapered mounting piece 18 on the lower side of the shroud 17 is fitted into the tapered mounting groove 14 of the lower tank 11, and only the upper part of the shroud 17 is connected to the bolt 22 and nut 21.
You only need to tighten it in two places with the taper mounting groove 1.
The tapered mounting piece 1 is attached to the wide inclined receiving surface 14a of 4.
The inclined contact surface 18a of No. 8 comes into contact with the shroud 17, and the shroud 17 is easily and stably attached to the radiator body R.
Moreover, it will be securely fixed. Furthermore, the opening groove a', depth b', and taper angle of the taper mounting groove 14 are
c' and the top width a, depth b, and taper angle c of the tapered mounting piece 18 are a>a', b<b', c
＝c′.

Therefore, according to this embodiment, when molding the lower tank 11 and the upper tank 12, there is no need to embed an insert nut as in the conventional case, and the tank molding becomes very simple. Of course, there is no need for knurling to improve the adhesion between the resin body and the insert nut, resulting in a significant reduction in molding costs. Furthermore, Shroud 17
The installation of the shroud 17 is also easy, as it simply involves fitting the tapered mounting piece 18 on the lower side of the shroud 17 into the tapered mounting groove 14 of the lower tank 11, and tightening only the upper part of the shroud 17 with bolts 22 and nuts 21 at two locations. It also made the work easier. Furthermore, since the inclined contact surface 18a of the tapered mounting piece 18 comes into contact with the inclined wide receiving surface 14a of the taper mounting groove 14, the shroud 17 is fixed with good stability, and as a result, even when subjected to engine vibration, the shroud 17
will not come off from the radiator body R. Furthermore, when installing the shroud 17, the tapered mounting piece 18 on the lower side of the shroud 17 is fitted into the tapered mounting groove 14 of the lower tank 11. As shown in FIGS. 9 to 12, the tapered mounting piece 18 is always supported at at least two points by the two tapered mounting grooves 14, and the shroud 17 is securely fixed to the radiator body R. Furthermore, by fitting the tapered mounting piece 18 into the tapered mounting groove 14, the mounting position of the shroud 17 is accurately determined, so that the shroud 17 can be easily and quickly mounted to the radiator body R. It became possible.

In addition, in the above embodiment, the taper attachment piece 18
A cut 1 is made in the center of the tapered mounting groove 14 where the
3 is provided, but a tapered mounting groove without such a cut 13 may be used.

[Effect of idea]

As described above, according to the present invention, the tank can be easily formed and the molding cost can be significantly reduced. Furthermore, the number of tightening points is reduced, which improves the workability of installing the shroud, and the installation position of the shroud can be easily determined, making it possible to quickly attach the shroud to the radiator body. Furthermore, since the installation on the lower side of the shroud is structured such that the tapered mounting piece is fitted into the tapered mounting groove, there are many advantages such as not requiring much precision in the machining of the radiator body and shroud. .

[Brief explanation of the drawing]

Figure 1 is a rear view of a radiator equipped with a conventional shroud, Figure 2 is a sectional view taken along line A-A in Figure 1, Figure 3 is a sectional view taken along line B-B in Figure 1, and Figure 4 is a sectional view taken along line A-A in Figure 1. A rear view of a radiator equipped with a shroud according to an embodiment of the invention, FIG. 5 is a perspective view of the upper main part of the radiator showing the state after the shroud is installed, and FIG. 6 is a top view of the radiator showing the state before the shroud is installed. Fig. 7 is a perspective view of the lower main part of the radiator showing the state after the shroud is installed; Fig. 8 is a perspective view of the lower main part of the radiator showing the state before the shroud is installed; Fig. 9 12 are schematic cross-sectional views showing the tapered mounting pieces fitted into the tapered mounting grooves in various manners. DESCRIPTION OF SYMBOLS 11... Resin lower tank, 12... Resin upper tank, 14... Taper mounting groove, 16... Nut storage groove, 17... Shroud, 18... Taper mounting piece, 19... Mounting piece.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A mounting piece provided at the top of the shroud is screwed onto the resin upper tank, and a tapered mounting groove into which the tapered mounting piece provided at the bottom of the shroud is fitted into the resin lower tank. A radiator equipped with a shroud. (2) The shroud according to claim 1 of the utility model registration claim, wherein the resin upper tank has a nut storage groove in which a bolt hole is bored corresponding to the mounting piece provided on the upper part of the shroud. Equipped with radiator.