JP2019018831A - Radiator fan shroud structure and attachment/detachment method of fan shroud - Google Patents

Abstract

To provide a radiator fan shroud structure for facilitating the attachment/detachment of a fan shroud 30 from below without being hindered by a medium inlet/outlet of a tank, and an attachment/detachment method of the fan shroud 30.SOLUTION: A radiator fan shroud structure comprises a cross-flow type radiator having tanks at right and left sides, and the fan shroud 30. The fan shroud 30 is constituted of a shroud main body 31 for covering a core of the radiator, a first attachment part 32 attached to a position higher than an upper inlet 133 of the right tank, and a third attachment part 34 attached to the left tank. The shroud main body 31 comprises a notch 38 which is formed by notching an edge end portion adjoining an upper outlet 143 in a right-and-left direction, and the notch 38 is formed so that a linear line distance L1 from the first attachment part 32 becomes short with respect to a linear line distance L2 between the upper inlet 133 and the upper outlet 143.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a radiator fan shroud structure in which a fan shroud is mounted on a cross-flow type radiator having a tank on the left and right and a heat exchange medium flowing in one of the left and right directions in a vehicle such as an automobile, and the like. The present invention relates to a method for removing a fan shroud.

  In vehicles such as automobiles, the temperature rise of the engine or supercharger is suppressed by circulating cooling water, which is a heat exchange medium, inside the engine or supercharger. And the cooling water heated by the engine and the supercharger is air-cooled by passing the radiator which is a heat exchanger arrange | positioned in the vehicle front part, for example, and is supplied to an engine or a supercharger again.

  On the back side of such a radiator is an electric fan for increasing the amount of cooling air blown to the radiator, and a fan shroud that supports the electric fan and covers the back side of the radiator in order to improve the heat dissipation effect of the radiator Is arranged (see Patent Document 1).

  Specifically, in Patent Document 1, a cross flow having a right tank in which a medium inflow port into which a heat exchange medium flows is formed in an upper part and a left tank in which a medium outflow port from which a heat exchange medium flows out is formed in a lower part. A radiator of the formula is described.

  Further, in Patent Document 1, the right side of the fan shroud holding the electric fan is attached to the lower side of the medium inlet in the right tank and to the lower side of the right tank via an attachment portion, and the left side of the fan shroud is attached to the left tank. It is attached via an attachment part above the medium outlet in the upper part and the left tank.

  By the way, for example, when it is necessary to replace the fan shroud due to aging, etc., if there is not enough clearance between the fan shroud and the engine, etc., move the fan shroud backward and remove it. I can't. In such a case, the fan shroud is slid downward with respect to the radiator and removed.

  However, for example, in the case of a cross-flow type radiator as in Patent Document 1, if the fan shroud is slid downward, the attachment portion of the fan shroud interferes with the medium outlet of the left tank. There was a problem that the fan shroud could not be removed.

JP 2005-163758 A

  SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and an object thereof is to provide a radiator fan shroud structure and a fan shroud detaching method that make it easy to detach the fan shroud from below without being obstructed by the tank medium inlet / outlet. And

  The present invention is a radiator fan shroud structure including a cross flow type radiator having a right and left tank having a medium inlet / outlet through which a heat exchange medium flows in or out, and a fan shroud attached to the tank of the radiator. The fan shroud has a shroud main body that covers the core of the radiator, a first attachment portion that is attached to a position above the medium inlet / outlet in one of the tanks, and a second attachment portion that is attached to the other tank. The shroud body is provided with a notch formed by notching an edge portion adjacent to the medium inlet / outlet of the other tank in the left-right direction toward the one tank. The notch is in front of the linear distance between the medium inlet / outlet of the one tank and the medium inlet / outlet of the other tank. Linear distance from the first attachment portion is characterized in that it is formed to be shorter.

  The present invention also relates to a fan shroud having a structure including a cross flow type radiator having left and right tanks having a medium inlet / outlet through which a heat exchange medium flows in and out, and a fan shroud attached to the tank of the radiator. A desorption method comprising: releasing a first mounting portion of the fan shroud attached to a position above the medium inlet / outlet of one of the tanks; and a first of the fan shroud attached to the other tank. 2 A step of releasing the mounting portion, a step of moving the shroud body covering the radiator core in the left-right direction, and a linear distance between the medium inlet / outlet of the one tank and the medium inlet / outlet of the other tank On the other hand, adjacent to the medium inlet / outlet of the other tank so that the linear distance from the first mounting portion is shortened. A step of bringing a notch portion of the shroud main body, which has an end portion cut out toward the one tank, close to the medium inlet / outlet of the other tank, and a center of rotation of the medium inlet / outlet of the other tank And a step of rotating the fan shroud downward.

The radiator may be a radiator that cools a heat exchange medium that circulates inside an internal combustion engine or a water-cooled supercharger, an intercooler that cools air heated by a supercharger, or the like.
The notched portion may be a notched portion having a substantially trapezoidal shape when viewed from the rear side and having a short side on one tank side, or a notched portion having a substantially rectangular shape when viewed from the rear side.

According to the present invention, the fan shroud can be easily detached from the lower side without being obstructed by the medium inlet / outlet of the tank.
Specifically, by forming a notch in the shroud body, the radiator fan shroud structure and the fan shroud attachment / detachment method slide the fan shroud to the left and right compared to when the notch is not formed. Can be moved.

  For this reason, the notch part of the fan shroud is brought close to the medium inlet / outlet of the other tank, so that the radiator fan shroud structure and the fan shroud removal / removal method are compared with the case where the notch part is not formed. The first mounting portion of the shroud can be further separated from the medium inlet / outlet port of one tank.

  Further, since the notch is formed so that the linear distance from the first mounting portion is shorter than the linear distance between the medium inlet / outlet of one tank and the medium inlet / outlet of the other tank, The radius of rotation of the first attachment portion when the medium inlet / outlet of the tank is the rotation center is smaller than the linear distance between the medium inlet / outlet of one tank and the medium inlet / outlet of the other tank.

  Therefore, in the radiator fan shroud structure and the fan shroud removal method, when the fan shroud is rotated downward around the medium inlet / outlet of the other tank, the fan shroud is inserted into the medium inlet / outlet of one tank. It can prevent that a 1st attaching part interferes.

  Thus, the radiator fan shroud structure and the fan shroud detaching method can easily displace the first mounting portion of the fan shroud to a position below the medium inlet / outlet of one tank. Moving to can be facilitated.

On the other hand, when the fan shroud is mounted on the radiator, the radiator fan shroud structure and the fan shroud removal method are as follows. By rotating, the first mounting portion of the fan shroud can be easily displaced to a position above the medium inlet / outlet of one tank.
Therefore, the radiator fan shroud structure and the fan shroud removal method can easily remove the fan shroud from below without being obstructed by the medium inlet / outlet of the tank.

As an aspect of the present invention, the notch portion of the fan shroud is formed in a substantially trapezoidal shape in a rear view in which the one tank side is a short side.
According to the present invention, the radiator fan shroud structure can cause the oblique side portion of the notch portion having a substantially trapezoidal shape when viewed from the back to function as a guide means.

  Therefore, in the radiator fan shroud structure, when the fan shroud is slid toward the other tank, the short side portion of the notch can be easily brought closer to the medium inlet / outlet of the other tank. Thereby, the radiator fan shroud structure can make it easier to detach the fan shroud from below even in an environment where the detachability is poor.

As an aspect of the present invention, the heat exchange medium is a first heat exchange medium, the crossflow radiator is a first radiator, the one tank is one first tank, and the other tank is the other. As a first tank, a second radiator having a second tank arranged on the left and right sides of the first tank is provided below the first radiator, and is provided below the first tank. The second tank located is provided with a medium inflow port through which a second heat exchange medium flows in and a medium outflow port through which the second exchange medium flows out, and the medium inlet / outlet of the one first tank is the first tank It is arrange | positioned in the position above the substantially vertical center containing 2 radiators.
The second radiator may be a so-called U-flow radiator in which the second heat exchange medium reciprocates in the left-right direction.

  According to the present invention, the radiator fan shroud structure facilitates attachment / detachment of the fan shroud from below even when the medium inlet / outlet of the first tank and the first mounting portion of the fan shroud are close to each other. it can.

  Specifically, for example, when the crossflow type first radiator and the crossflow type second radiator are integrated, the shroud body moves below the other first tank as the fan shroud rotates. There is a possibility that the rotation of the fan shroud is hindered by interfering with the medium inlet / outlet provided in the second tank located.

  On the other hand, since the medium inlet and the medium outlet are provided in the second tank located below one of the first tanks, the second tank located below the other first tank has a fan. There is nothing that prevents the shroud from turning. For this reason, even if the radiator fan shroud structure is a combined radiator in which the first radiator and the second radiator are integrated, the fan shroud can be easily detached from below.

  Furthermore, for example, the fan shroud is not provided with a notch, and the smaller the distance between the medium inlet / outlet of one of the first tanks and the first mounting portion of the fan shroud, the more difficult it is to rotate the fan shroud. It becomes.

  On the other hand, in the radiator fan shroud structure, even when the distance between the medium inlet / outlet of one of the first tanks and the first mounting portion of the fan shroud is small, the fan shroud is not cut by the notch portion of the fan shroud. It can be easily rotated.

  Therefore, in the radiator fan shroud structure, in the composite radiator in which the first radiator and the second radiator are integrated, the medium inlet / outlet in one of the first tanks is positioned above the center in the vertical direction. Even when the distance between the medium inlet / outlet of one tank and the first mounting portion of the fan shroud is reduced, the fan shroud can be reliably detached from below.

  According to the present invention, it is possible to provide a radiator fan shroud structure and a fan shroud detaching method that make it easy to detach the fan shroud from below without being obstructed by the medium inlet / outlet of the tank.

The rear view which shows the external appearance of the radiator and fan shroud in a rear view. The rear view which shows the external appearance of the radiator in a rear view. The rear view which shows the external appearance of the fan shroud in a rear view. The rear view which shows the state which the fan shroud slid to the left direction. The rear view which shows the state which the fan shroud started to rotate below.

An embodiment of the present invention will be described below with reference to the drawings.
1 shows a rear view of the radiator 10 and the fan shroud 30, FIG. 2 shows a rear view of the radiator 10, and FIG. 3 shows a rear view of the fan shroud 30.
Further, FIGS. 1 to 3 each show a rear side surface in the front-rear direction.
Furthermore, in the figure, arrows R and L indicate the left-right direction, arrow R indicates the right direction, and arrow L indicates the left direction. In addition, the upper side in the figure is the upper side, and the lower side in the figure is the lower side.

  As shown in FIG. 1, the radiator fan shroud structure in the present embodiment supports a radiator 10 that is a heat exchanger, an electric fan 20 that is disposed on the rear surface of the radiator 10, and sucks cooling air, and supports the electric fan 20. A fan shroud 30 that covers the rear surface of the radiator 10 is also included.

  As shown in FIG. 1, the radiator 10 has a substantially rectangular shape in a rear view that is long in the left-right direction, and is supported inside a substantially frame-shaped radiator shroud 40 having an open front surface and rear surface.

  The radiator 10 is configured to be connectable to, for example, an engine (not shown) and a supercharger (not shown) via an internal hollow cooling hose (not shown). Cooling water, which is a heat exchange medium that absorbs the heat of the machine, is configured to flow.

  More specifically, as shown in FIG. 2, the radiator 10 includes an upper radiator 11 connected to the engine via a cooling hose and a lower radiator 12 connected to the supercharger via the cooling hose from above. They are connected in this order and configured integrally. Of the length of the radiator 10 in the vertical direction, the upper radiator 11 occupies about 3/4 and the lower radiator 12 occupies about 1/4.

  As shown in FIG. 2, the upper radiator 11 is a so-called cross-flow type radiator in which cooling water circulates in one direction from the right side in the rear view to the left side in the rear view, and is arranged at a predetermined interval in the left-right direction. The upper right tank 13, the upper left tank 14, and the upper core 15 disposed therebetween are configured.

  As shown in FIG. 2, the upper right tank 13 extends in the vertical direction and is disposed on the right tank body 131 having an internal hollow structure that temporarily stores cooling water and the right side surface near the upper end of the right tank body 131. At the same time, it is integrally formed with a first fixing portion 132 that is fastened and fixed to the radiator shroud 40.

As shown in FIG. 2, the right tank body 131 has an upper inlet 133 to which a cooling hose having one end connected to the engine, a first attached portion 134 to which the fan shroud 30 is attached, and a second attached portion. The part 135 is integrally formed.
The upper inlet 133 is formed as an inlet for introducing cooling water heated by the engine into the right tank body 131 via a cooling hose.

  Specifically, as shown in FIG. 2, the upper inlet 133 has a substantially cylindrical shape that communicates the internal space of the right tank main body 131 and the outside, and is substantially more than the vertical center of the radiator 10 in the rear view. It is formed so as to project from the upper position toward the rear upper side. Note that the upper inlet 133 is formed such that the tip thereof is located behind the first attached portion 134 and the second attached portion 135.

  As shown in FIG. 2, the first attached portion 134 is formed at a position above the upper inlet 133 and slightly below the first fixing portion 132. In addition, the 1st to-be-attached part 134 is formed so that the volt | bolt B (refer FIG. 1) for fastening and fixing the fan shroud 30 can be screwed together.

  As shown in FIG. 2, the second attached portion 135 is formed below the upper inlet 133 and at a position near the lower end of the upper right tank 13. In addition, the 2nd to-be-attached part 135 is formed like the 1st to-be-attached part so that the volt | bolt B (refer FIG. 1) for fastening and fixing the fan shroud 30 can be screwed together.

  On the other hand, as shown in FIG. 2, the upper left tank 14 extends in the vertical direction and is disposed on the left tank body 141 having an internal hollow structure that temporarily stores cooling water and the left side surface near the upper end of the left tank body 141. In addition, the second fixing portion 142 that is fastened and fixed to the radiator shroud 40 is integrally formed.

As shown in FIG. 2, the left tank body 141 is integrally formed with an upper outlet 143 to which a cooling hose having one end connected to the engine and a third attached portion 144 to which the fan shroud 30 is attached. Yes.
The upper outlet 143 is formed as a lead-out port for leading the cooling water cooled by the upper radiator 11 to the engine via the cooling hose.

  Specifically, as shown in FIG. 2, the upper outlet 143 has a substantially cylindrical shape that communicates the internal space of the left tank main body 141 with the outside, and is located at a substantially central position in the vertical direction of the radiator 10 in the rear view. It is formed so as to project downward from the rear. The upper outlet 143 is formed so that the tip thereof is located behind the third attached portion 144 and a fourth attached portion 173 described later.

  As shown in FIG. 2, the third attached portion 144 is formed at a position above the upper outlet 143 and slightly below the first attached portion 134. In addition, the 3rd to-be-attached part 144 is formed like the 1st to-be-attached part so that the volt | bolt B (refer FIG. 1) for fastening and fixing the fan shroud 30 can be screwed together.

  Although not shown in detail, the upper core 15 has an internal hollow shape communicating with the internal spaces of the upper right tank 13 and the upper left tank 14, and is integrally formed with a tube extending in the left-right direction, an upper surface and a lower surface of the tube. A plurality of fins having a substantially wavy shape when viewed from the back are stacked in the vertical direction.

  Further, as shown in FIG. 2, the lower radiator 12 is a U-flow type radiator in which cooling water reciprocates in the left-right direction from the right side when viewed from the rear, and a lower right tank 16 disposed at a predetermined interval in the left-right direction. , And a lower left tank 17 and a lower core 18 disposed therebetween.

  As shown in FIG. 2, the lower right tank 16 is disposed on the right tank body 161 having an internal hollow structure that continuously extends downward from the lower end of the upper right tank 13 in the upper radiator 11, and the lower surface of the right tank body 161. And a third fixing portion 162 that is fastened and fixed to the radiator shroud 40.

As shown in FIG. 2, the right tank body 161 is integrally formed with a lower inlet 163 to which a cooling hose having one end connected to a supercharger is connected, and a lower outlet 164 configured separately. Has been.
The lower inlet 163 is formed as an inlet for introducing the cooling water heated by the supercharger into the right tank body 161 via the cooling hose.

  Specifically, as shown in FIG. 2, the lower inlet 163 has a substantially cylindrical shape that communicates the internal space of the right tank main body 161 and the outside, and protrudes rearward from the upper portion of the right tank main body 161. It is formed to be installed. The lower inlet 163 is formed such that the tip thereof is located behind the first attached portion 134 and the second attached portion 135.

  The lower outlet 164 is connected to an opening (not shown) provided at the lower back of the right tank body 161, and serves as a lead-out port for leading the cooling water cooled by the lower radiator 12 to the supercharger via the cooling hose. It is configured.

  Specifically, as shown in FIG. 2, the lower outlet 164 has a front end connected to the right tank main body 161, a bottomed cylindrical portion having a bottom at the bottom, and a leftward view in the rear view from the bottomed cylindrical portion, and It is formed in a shape in which a substantially cylindrical tube portion extending slightly downward is integrated.

  On the other hand, as shown in FIG. 2, the lower left tank 17 is arranged on the left tank body 171 having an internal hollow structure continuously extending downward from the lower end of the upper left tank 14 in the upper radiator 11 and on the lower surface of the left tank body 171. And is integrally formed with a fourth fixing portion 172 that is fastened and fixed to the radiator shroud 40.

Further, as shown in FIG. 2, the left tank body 171 is integrally formed with a fourth attached portion 173 to which the fan shroud 30 is attached.
As shown in FIG. 2, the fourth attached portion 173 is formed at a position slightly below the substantially vertical center of the left tank main body 171. In addition, the 4th to-be-attached part 173 is formed like the 1st to-be-attached part so that the volt | bolt B (refer FIG. 1) for fastening and fixing the fan shroud 30 can be screwed together.

  Although not shown in detail, the lower core 18 has an internal hollow shape communicating with the internal spaces of the lower right tank 16 and the lower left tank 17, and is integrally formed with a tube extending in the left-right direction, an upper surface and a lower surface of the tube. A plurality of fins having a substantially wavy shape when viewed from the back are stacked in the vertical direction.

  Further, as shown in FIG. 3, the electric fan 20 includes an electric motor 21 and six blade portions 22 provided on the rotating shaft of the electric motor 21. As shown in FIG. 1, the electric fan 20 is disposed such that the rotating shaft is positioned at a position substantially in the vertical direction of the radiator 10 and slightly left of the horizontal direction in the rear view. Yes.

  As shown in FIG. 1, the fan shroud 30 is attached to the radiator 10 and the shroud body 31 that integrally covers the upper core 15 and the lower core 18 of the radiator 10, and is attached to the right side of the shroud body 31. The first mounting portion 32 and the second mounting portion 33 to be supported, and the third mounting portion 34 and the fourth mounting portion 35 that are attached to the radiator 10 and support the left side of the shroud body 31 are integrally formed. .

  As shown in FIGS. 1 and 3, the shroud body 31 includes a right tank (upper right tank 13 and lower right tank 16) and a left tank (upper left tank 14 and lower left tank 17) when viewed from the rear. In between, the upper core 15 and the lower core 18 of the radiator 10 are formed in a substantially rectangular shape when viewed from the back.

As shown in FIG. 3, the shroud main body 31 is formed with one circular opening 31a having a substantially circular shape when viewed from the back, and five slit-shaped slit openings 31b that are long in the left-right direction. ing.
The circular opening 31a is formed in an approximately circular shape when viewed from the back, with the position substantially the same as the rotation center of the electric fan 20 being the center.

Further, a substantially cylindrical motor holding portion 36 that holds the electric fan 20 in a substantially cylindrical shape extending in the front-rear direction is disposed at a substantially center of the circular opening 31a in the rear view.
As shown in FIG. 3, the motor holding portion 36 extends radially from the outer peripheral surface with the approximate center in the rear view as a center, and via a plurality of stay portions 37 connected to the edge of the circular opening 31 a. It is supported.
As shown in FIG. 3, five slit openings 31 b are arranged in the vertical direction on the right side of the circular opening 31 a and below, that is, on the lower right side of the shroud body 31 in the rear view.

  In addition, as shown in FIGS. 1 and 3, the rear side of the shroud main body 31 is between the third mounting portion 34 and the fourth mounting portion 35 that support the left side of the shroud main body 31. A notched portion 38 is formed by cutting out the left edge toward the right side in a substantially trapezoidal shape when viewed from the back.

  More specifically, as shown in FIGS. 1 and 3, the cutout portion 38 is formed by cutting out into a substantially trapezoidal shape in a rear view in which the left side in the rear view has a long side and the right side in the rear view has a short side. In the state where the notch 38 is attached to the radiator 10, the upper end of the short side portion 38 a that is an edge corresponding to the short side of the substantially trapezoidal shape when viewed from the back is substantially the same as the base of the upper outlet 143 in the vertical direction. It is formed to be in the same position.

As shown in FIG. 1, the notch 38 is formed such that the vertical length of the short side portion 38 a is longer than the vertical length of the base of the upper outlet 143.
Further, as shown in FIGS. 2 and 3, the short side portion 38 a of the notch portion 38 has a short side in the notch portion 38 from the tip of the first mounting portion 32 that supports the upper right of the shroud body 31 in the rear view. A straight line distance L1 to the upper end of the portion 38a is formed at a position in the left-right direction that is shorter than a straight line distance L2 from the left end of the upper inlet 133 to the right end of the upper outlet 143.

As shown in FIGS. 1 to 3, the first mounting portion 32 is a portion that is fastened and fixed to the first mounted portion 134 of the radiator 10, and extends from the upper right side of the shroud main body 31 to the right. Has been.
As shown in FIGS. 1 to 3, the second mounting portion 33 is a portion that is fastened and fixed to the second mounted portion 135 of the radiator 10, and extends in the right direction from the lower right side of the shroud body 31 when viewed from the back. Has been.

As shown in FIGS. 1 to 3, the third mounting portion 34 is a portion that is fastened and fixed to the third mounted portion 144 of the radiator 10, and extends from the upper left side of the shroud body 31 to the left. Has been.
As shown in FIGS. 1 to 3, the fourth mounting portion 35 is a portion that is fastened and fixed to the fourth mounted portion 173 of the radiator 10, and extends leftward from the lower left portion of the shroud body 31 when viewed from the back. Has been.

Next, in the radiator fan shroud structure having the above-described configuration, for example, a step of removing the fan shroud 30 from the radiator 10 disposed in the front portion of the vehicle such as an automobile and a step of attaching the fan shroud 30 to the radiator 10 are shown in FIG. This will be described in detail with reference to FIGS.
4 shows a rear view of the fan shroud 30 slid leftward, and FIG. 5 shows a rear view of the fan shroud 30 started to rotate downward.

First, the removal process for removing the fan shroud 30 mounted on the radiator 10 arranged at the front of the vehicle will be described.
As shown in FIG. 1, in a state where the fan shroud 30 is mounted on the radiator 10, the operator removes the four bolts B that fasten and fix the fan shroud 30 to the radiator 10, and the first mounting portion 32, The fastening state of the second attachment portion 33, the third attachment portion 34, and the fourth attachment portion 35 is released.

  When the fastening between the radiator 10 and the fan shroud 30 is released, as shown in FIG. 4, the operator moves the fan shroud 30 slightly rearward and then slides the fan shroud 30 to the left in the rear view. At this time, the operator slides the fan shroud 30 to the left in the rear view while bringing the oblique side portion that is the inclined edge of the notch 38 into contact with the upper outlet 143 of the radiator 10.

  Then, when the fan shroud 30 is slid until the notch 38 of the fan shroud 30 approaches or comes into contact with the upper outlet 143 of the radiator 10, as shown in FIG. With the upper outlet 143 as the center of rotation, the right side of the fan shroud 30 is rotated downward.

At this time, the operator rotates the fan shroud 30 until at least the first mounting portion 32 of the fan shroud 30 is positioned below the upper inlet 133 of the radiator 10.
Then, the operator removes the fan shroud 30 from the radiator 10 by moving the fan shroud 30 downward while rotating the fan shroud 30, and completes the removing process.

Next, the attachment process at the time of attaching the fan shroud 30 with respect to the radiator 10 with which the vehicle front part was mounted | worn is demonstrated. This attachment process is performed in the reverse process of the removal process.
Specifically, the operator places the fan shroud 30 tilted so that the lower left end of the fan shroud 30 is located above the lower right end of the fan shroud 30 on the rear surface of the radiator 10 attached to the front portion of the vehicle. On the other hand, it is slid from the bottom to the top.

  At this time, the worker moves the tilted fan shroud 30 to a position where the notch 38 of the fan shroud 30 is close to or abuts the upper outlet 143 of the radiator 10. Thereafter, when the notch 38 of the fan shroud 30 approaches or comes into contact with the upper outlet 143 of the radiator 10, the operator turns the right side of the fan shroud 30 upward with the upper outlet 143 of the radiator 10 as the center of rotation. To rotate.

  Then, the operator rotates the fan shroud 30 until the first mounting portion 32 of the fan shroud 30 is positioned above the upper inlet 133 of the radiator 10. When the first mounting portion 32 of the fan shroud 30 is positioned above the upper inlet 133 of the radiator 10, the operator slides the fan shroud 30 to the right, and the first mounting portion 32 of the fan shroud 30 and the radiator are moved. The ten first mounted portions 134 are made to substantially coincide with each other.

  Similarly, the second mounting portion 33 of the fan shroud 30 and the second mounted portion 135 of the radiator 10 are substantially matched, and the third mounting portion 34 of the fan shroud 30 and the third mounted portion 144 of the radiator 10 are approximately aligned. The fourth mounting portion 35 of the fan shroud 30 and the fourth mounted portion 173 of the radiator 10 are substantially matched.

  When the position of each attachment portion is aligned with each attachment portion, the operator attaches the first attachment portion 32, the second attachment portion 33, the third attachment portion 34, and the fourth attachment portion 35 of the fan shroud 30 to the bolt B. The mounting process is completed by fastening and fixing to the radiator 10 using.

  The radiator fan shroud structure capable of detaching the fan shroud 30 and the method of detaching the fan shroud 30 as described above are easy to detach the fan shroud 30 from below without being obstructed by the upper inlet 133 of the upper right tank 13. Can be.

  Specifically, since the notch 38 is formed in the shroud main body 31, the radiator fan shroud structure and the method for attaching and detaching the fan shroud 30 are compared with the case where the notch 38 is not formed. Can be slid to the left and right.

  For this reason, the notch part 38 of the fan shroud 30 is brought close to the upper outlet 143 of the upper left tank 14 so that the radiator fan shroud structure and the method of removing the fan shroud 30 are not formed. As compared with the above, the first mounting portion 32 of the fan shroud 30 can be further separated from the upper inlet 133 of the upper right tank 13.

  Further, the notch 38 is formed so that the linear distance L1 from the first mounting portion 32 is shorter than the linear distance L2 between the upper inlet 133 of the upper right tank 13 and the upper outlet 143 of the upper left tank 14. Therefore, the rotation radius of the first mounting portion 32 when the upper outlet 143 of the upper left tank 14 is the rotation center is the linear distance between the upper inlet 133 of the upper right tank 13 and the upper outlet 143 of the upper left tank 14. It becomes smaller than L2.

  For this reason, the radiator fan shroud structure and the method of attaching and detaching the fan shroud 30 are such that when the fan shroud 30 is rotated downward with the upper outlet 143 of the upper left tank 14 as the center of rotation, the upper inlet 133 of the upper right tank 13 is rotated. It can prevent that the 1st attaching part 32 of the fan shroud 30 interferes.

  Thereby, the radiator fan shroud structure and the method of attaching / detaching the fan shroud 30 can easily displace the first mounting portion 32 of the fan shroud 30 to a position below the upper inlet 133 of the upper right tank 13, The downward movement of the fan shroud 30 can be facilitated.

On the other hand, when the fan shroud 30 is mounted on the radiator 10, the radiator fan shroud structure and the method of detaching the fan shroud 30 are as follows: the notch 38 is brought close to the upper outlet 143 of the upper left tank 14 from below. By rotating the fan shroud 30 upward, the first mounting portion 32 of the fan shroud 30 can be easily displaced to a position above the upper inlet 133 of the upper right tank 13.
Therefore, the radiator fan shroud structure and the method for detaching the fan shroud 30 can easily remove the fan shroud 30 from below without being obstructed by the upper inlet 133 of the upper right tank 13.

  Further, the notched portion 38 of the fan shroud 30 is formed in a substantially trapezoidal shape in a rear view in which the upper right tank 13 side is a short side, so that the radiator fan shroud structure has a substantially trapezoidal shape in a rear view. The hypotenuse can be made to function as a guide means.

  Therefore, in the radiator fan shroud structure, when the fan shroud 30 is slid toward the upper left tank 14, the short side portion 38 a of the notch 38 can be easily brought closer to the upper outlet 143 of the upper left tank 14. Thereby, the radiator fan shroud structure can make it easier to detach the fan shroud 30 from below even in an environment where the detachability is poor.

  The lower radiator 12 is integrally provided below the upper radiator 11, and the lower right tank 16 positioned below the upper right tank 13 is provided with a lower inlet 163 and a lower outlet 164, and the upper inlet of the upper right tank 13 is provided. 133 is disposed at a position above the substantially vertical center including the lower radiator 12, the radiator fan shroud structure has an upper inlet 133 of the upper right tank 13 and a first mounting portion 32 of the fan shroud 30. Even in the case of proximity, the fan shroud 30 can be easily detached from the lower side.

  Specifically, for example, when the crossflow type upper radiator 11 and the crossflow type lower radiator are integrated, the shroud body 31 is positioned below the upper left tank 14 as the fan shroud rotates. The rotation of the fan shroud 30 may be hindered by interfering with the lower outlet provided in the lower left tank.

  On the other hand, since the lower inlet 163 and the lower outlet 164 are provided in the lower right tank 16 located below the upper right tank 13, the lower left tank 17 inhibits the rotation of the fan shroud 30. There is no. For this reason, even if the radiator fan shroud structure is a composite radiator 10 in which the upper radiator 11 and the lower radiator 12 are integrated, the fan shroud 30 can be easily detached from below.

  Further, for example, the fan shroud 30 is not provided with the notch 38, and the fan shroud 30 is rotated as the distance between the upper inlet 133 of the upper right tank 13 and the first mounting portion 32 of the fan shroud 30 is smaller. It becomes difficult to make it.

  On the other hand, the radiator fan shroud structure has the notch 38 of the fan shroud 30 even when the distance between the upper inlet 133 of the upper right tank 13 and the first mounting portion 32 of the fan shroud 30 is small. The fan shroud 30 can be easily rotated.

  Therefore, in the radiator fan shroud structure, in the composite radiator 10 in which the upper radiator 11 and the lower radiator 12 are integrated, the upper inlet 133 in the upper right tank 13 is positioned above the substantially vertical center, so that the upper right Even when the distance between the upper inlet 133 of the tank 13 and the first mounting portion 32 of the fan shroud 30 becomes small, the fan shroud 30 can be reliably detached from below.

  Further, for example, when there is a sufficient gap between the fan shroud 30 and an internal combustion engine such as an engine disposed behind the fan shroud 30, the radiator fan shroud structure of the present invention is hindered by the upper inlet 133, the upper outlet 143, and the like. The fan shroud 30 can be moved in the front-rear direction without being attached.

  Thereby, the radiator fan shroud structure can correspond to both the desorption of the fan shroud 30 from below and the desorption of the fan shroud 30 from the rear. For this reason, the radiator fan shroud structure does not require the use of a fan shroud that can be detached from the rear or a fan shroud that can be detached from below depending on the distance from the internal combustion engine, and the number of parts can be reduced. .

In correspondence between the configuration of the present invention and the above-described embodiment,
The heat exchange medium, the first heat exchange medium, and the second heat exchange medium of the present invention correspond to the cooling water of the embodiment,
Similarly,
The medium inlet / outlet corresponds to the upper inlet 133 and the upper outlet 143,
The tanks correspond to the upper right tank 13 and the upper left tank 14,
The cross flow type radiator and the first radiator correspond to the upper radiator 11,
The core of the radiator corresponds to the upper core 15,
One tank and one first tank correspond to the upper right tank 13,
The medium inlet / outlet in one tank corresponds to the upper inlet 133,
The other tank and the other first tank correspond to the upper left tank 14,
The second mounting portion corresponds to the third mounting portion 34,
The medium inlet / outlet of the other tank corresponds to the upper outlet 143,
The linear distance between the medium inlet / outlet of one tank and the medium inlet / outlet of the other tank corresponds to the linear distance L2 from the left end of the upper inlet 133 to the right end of the upper outlet 143,
The linear distance from the first mounting portion to the notch corresponds to the linear distance L1 from the tip of the first mounting portion 32 to the upper end of the short side portion 38a in the notch 38,
The second tank corresponds to the lower right tank 16 and the lower left tank 17,
The second radiator corresponds to the lower radiator 12,
The second tank located below one of the first tanks corresponds to the lower right tank 16,
The medium inlet of the second tank corresponds to the lower inlet 163,
The medium outlet of the second tank corresponds to the lower outlet 164,
The present invention is not limited only to the configuration of the above-described embodiment, and many embodiments can be obtained.

  For example, in the above-described embodiment, the upper radiator 11 connected to the engine and the lower radiator 12 connected to the supercharger are integrally connected to the radiator 10. Only the radiator 11 may be used. In this case, the fan shroud 30 is configured to have a size corresponding to the upper radiator 11, and a fourth mounted portion to which the fourth mounting portion 35 of the fan shroud 30 is mounted is disposed below the upper left tank 14.

Although the radiator 10 that cools the heated cooling water is used, the present invention is not limited to this, and a radiator that cools the air heated by a supercharger, that is, an intercooler may be used.
In addition, although the cutout portion 38 is provided on the left side of the fan shroud 30 when viewed from the back, the configuration is not limited thereto, and the cutout portion 38 may be provided on the right side of the fan shroud 30 when viewed from the back.
Further, although the cutout portion 38 of the fan shroud 30 is formed in a substantially trapezoidal shape when viewed from the back, it is not limited to this, and may be a cutout portion 38 having a substantially rectangular shape when viewed from the back.

  In addition, although the notch portion 38 is formed so that the upper end of the short side portion 38a in the substantially trapezoidal shape in the rear view is substantially in the same position as the base portion of the upper outlet 143 in the vertical direction, the present invention is not limited to this, and the fan shroud 30 is not limited thereto. The notch 38 and the base of the upper outlet 143 may be located at substantially the same position in the vertical direction. For example, the approximate vertical center of the short side portion 38a in the notch and the approximate vertical center of the base of the upper outlet 143 may be at substantially the same position in the vertical direction.

  In the upper radiator 11, the upper right tank 13 is provided with an upper inlet 133, and the upper left tank 14 is provided with an upper outlet 143. However, the upper right tank 13 is provided with an upper outlet. The upper left tank 14 may be provided with an upper inlet.

The lower radiator 12 has a lower inlet 163 above the lower right tank 16 and a lower outlet 164 below. However, the present invention is not limited to this, and a lower outlet is provided above the lower right tank 16. The lower inlet may be provided with a lower inlet.
Alternatively, the lower right tank 17 may have a lower outlet and a lower inlet. In this case, the notch 38 of the fan shroud 30 is formed on the right side of the shroud main body 31 when viewed from the back.

DESCRIPTION OF SYMBOLS 11 ... Upper radiator 12 ... Lower radiator 13 ... Upper right tank 14 ... Upper left tank 15 ... Upper core 16 ... Lower right tank 17 ... Lower left tank 30 ... Fan shroud 31 ... Shroud main body 32 ... 1st attaching part 34 ... 3rd Mounting part 38 ... Notch part 133 ... Upper inlet 143 ... Upper outlet 163 ... Lower inlet 164 ... Lower outlet L1 ... Linear distance L2 ... Linear distance

Claims (4)

A cross-flow radiator having left and right tanks having a medium inlet / outlet through which heat exchange medium flows in or out;
A radiator fan shroud structure comprising a fan shroud attached to the tank of the radiator,
The fan shroud is
A shroud body covering the core of the radiator;
A first attachment portion attached to a position above the medium inlet / outlet in one of the tanks;
A second attachment portion attached to the other tank,
The shroud body is
A notch portion formed by cutting out the edge portion adjacent to the medium inlet / outlet of the other tank in the left-right direction toward the one tank,
The notch is
A radiator fan shroud structure formed so that a linear distance from the first mounting portion is shorter than a linear distance between the medium inlet / outlet of the one tank and the medium inlet / outlet of the other tank. The notch of the fan shroud is
2. The radiator fan shroud structure according to claim 1, wherein the one tank side is formed in a substantially trapezoidal shape in a rear view in which the short side is a short side. The heat exchange medium as a first heat exchange medium, the crossflow radiator as a first radiator, the one tank as one first tank, and the other tank as the other first tank,
A second radiator integrally having a second tank arranged on the left and right sides of the first radiator is provided below the first radiator,
The second tank located below the one first tank,
A medium inlet through which the second heat exchange medium flows in, and a medium outlet through which the second exchange medium flows out,
The medium inlet / outlet of the one first tank is
3. The radiator fan shroud structure according to claim 1, wherein the radiator fan shroud structure is disposed at a position above a substantially vertical center including the second radiator. A method of detaching a fan shroud in a structure comprising a cross-flow type radiator having a medium inlet / outlet through which a heat exchange medium flows in or out and a fan shroud attached to the tank of the radiator. ,
Releasing the first mounting portion of the fan shroud mounted at a position above the medium inlet / outlet of one of the tanks;
Releasing the second mounting portion of the fan shroud attached to the other tank;
Moving the shroud body covering the radiator core in the left-right direction;
The medium inlet / outlet of the other tank is set so that a linear distance from the first mounting portion is shorter than a linear distance between the medium inlet / outlet of the one tank and the medium inlet / outlet of the other tank. A step of bringing a notch portion of the shroud body, in which an edge portion adjacent to the outlet is cut out toward the one tank, to be close to the medium inlet / outlet of the other tank;
And a step of rotating the fan shroud downward with the medium inlet / outlet of the other tank as a rotation center.

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