JPH07293241A - Screen of radiator - Google Patents

Abstract

PURPOSE:To provide a screen for a radiator capable of easily quickly providing a mounting bracket on a trim member and of low cost production. CONSTITUTION:Trim members 2A, 2B are caulked fixedly to the outer periphery of a net material 1 having a plurality of vent holes 1a. A mounting bracket 3 to be fixed to front surface of a radiator is caulked fixedly to the trim members 2A, 2B. Since the mounting bracket 3 is caulked fixedly to the trim members 2A, 2B, it can be easily quickly mounted compared with welding. Also, the trim members are formed integrally with the mounting bracket, so that the a mounting operation of the mounting bracket can be dispensed with while the number of part items is reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen for covering and protecting the front surface of a radiator in a vehicle such as a motorcycle equipped with a water-cooled engine.

[0002]

2. Description of the Related Art In a motorcycle equipped with a water-cooled engine, a radiator for radiating cooling water of the engine is disposed on the front side of the engine and supported by a pair of left and right down tubes in a vehicle body frame. A screen for protecting the radiator by covering it with foreign matters such as small stones is provided on the front side (see Japanese Utility Model Laid-Open No. 58-114826). This screen is composed of a net material having a large number of air passage holes, a reinforcing trim member that is caulked along the outer periphery of the net material, and a bracket for mounting to the down tube.

[0003]

Two mounting brackets are attached to each of a pair of opposing sides of the net material having a substantially rectangular shape, and a total of four mounting brackets are provided. However, since this mounting bracket is attached by welding one end to the outer surface of the trim member,
It is a troublesome work to weld the individual mounting brackets. Therefore, the conventional screen has a problem that the number of man-hours increases due to the welding work and the manufacturing cost becomes high, although the screen has a simple structure of a flat mesh body.

Therefore, an object of the present invention is to provide a radiator screen which can be easily and quickly provided with a mounting bracket on a trim member and which can be manufactured at low cost.

[0005]

In order to achieve the above object, a radiator screen according to claim 1 of the present invention is a screen mounted on the front surface of a radiator for radiating heat of cooling water for an engine, A trim member is caulked to the outer periphery of a net material having a large number of air passage holes, and a mounting bracket fixed to a radiator is caulked to the trim member.

Further, in the radiator screen according to claim 2 of the present invention, the trim member is caulked to the outer periphery of the net material having a large number of air passage holes.
A mounting bracket fixed to the radiator is integrally formed.

[0007]

According to the radiator screen of claim 1,
Since the mounting bracket is caulked to the trim member, it is much easier and quicker to mount the mounting bracket to the trim member than the conventional welding-based mounting means, reducing man-hours and manufacturing costs. it can.

Further, according to the radiator screen of claim 2, since the mounting bracket is integrally formed with the trim member, the number of parts can be reduced and the mounting work of the mounting bracket on the trim member can be reduced. The cost can be further reduced.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings. 1 is a front view showing a screen S of a radiator according to an embodiment of the present invention.
(A), (b), (c) are all lines A-A and B in FIG.
The expanded transverse cross section each cut | disconnected along line -B and CC is shown.

In FIG. 1, a net material 1 is a vertically long rectangular metal net, and a large number of air passage holes 1 are formed on the entire surface thereof.
a is formed by the mesh of wire mesh. The two trim members 2A, 2B are formed in a U shape along substantially half of the outer circumference of the net material 1, and have a cross section bent in a U shape as shown in FIG. This trim member 2
A and 2B are attached to the peripheral edge of the net material 1 so as to sandwich the net material 1 and are caulked to prevent the net material 1
Is stuck to. At this time, the portions shown by the parallel lines in FIG. 1 of both end portions 2a, 2b are particularly strongly caulked.

Mounting brackets 3 are attached to the net material 1 at positions near the four corners thereof. As shown in FIG. 2B, the mounting bracket 3 is mounted such that the central base portion 3a is bent and wound around the trim members 2A and 2B, and is caulked and fixed to the trim members 2A and 2B. Has been done. Mounting pieces 3b having the same shape extend inwardly of the screen S from both front and back sides of the base portion 3a. As shown in FIG. Has been formed. On the other hand, an insertion hole 1b is provided at a portion of the net material 1 facing the both mounting holes 3c. This insertion hole 1b is used for the net material 1
In some cases, the mesh of is used as it is.

Next, the manufacturing procedure of the screen S will be described with reference to FIG. First, the trim members 2A and 2B are attached to the net member 1 from both sides in the longitudinal direction of the net member 1, as shown by the chain line in FIG.
At this time, the edge portions along the long sides on both the left and right sides of the net material 1 are inserted into the inside of the bent portions having a U-shaped cross section from both ends of the trim members 2A and 2B, and are slid. When the trim members 2A and 2B are pushed into the net material 1 until the edges along the upper and lower short sides of the trim members 2A and 2B are inserted into the bent portions at the center of the trim members 2A and 2B, as shown in FIG. The trim members 2A and 2B are attached to the net material 1. after that,
The trim members 2A, 2B are subjected to the first stage caulking process over the entire length of the trim members 2A, 2B, and the trim members 2A, 2B at both ends 2a, 2b.
Is fixed to the net material 1 in a temporarily fixed state where it is not pulled out.

Subsequently, as shown in FIG. 3 (c), the mounting bracket 4 having the base portion 3a folded in two is placed on the trim members 2A and 2B in the vicinity of the four corners thereof. Finally, the portion indicated by the parallel lines of the base portion 3a and the portions indicated by the parallel lines of the end portions 2a, 2b of the trim members 2A, 2B are subjected to the second stage caulking process, and the base portions 3a are changed to the trim members 2A, 2B. In addition to caulking, both end portions 2a, 2b are net material 1
Strongly crimp. Simultaneously with the caulking process, punching process is performed to form the mounting holes 3c and the insertion holes 1b in the opposing mounting pieces 3b and the net material 1 which face each other. In addition,
The punching process may be performed after the mounting bracket 3 is fixed by caulking.

As described above, since the mounting bracket 3 is fixed to the trim members 2A and 2B by caulking, the number of working steps is reduced as compared with the conventional complicated fixing means by welding, and the manufacturing cost is reduced accordingly. it can. Further, in the conventional screen S, the mounting bracket is mounted in a state of protruding outward from the trim member, whereas in the mounting bracket 3 of the above-described embodiment, the mounting piece 3a is located on the inner side and is attached to the net material 1. They are mounted in a superposed state, and this configuration has an advantage described later when mounting to the down tube.

FIG. 4 is a rear view of an essential part of the motorcycle equipped with the screen S, FIG. 5 is an enlarged transverse sectional view taken along line VV of FIG. 4, and FIG. 6 is VI of FIG. -VI
Each shows an enlarged cross-sectional view taken along the line. Figure 4
In the longitudinal radiator 10 that radiates the cooling water of the water-cooled engine (not shown), side plates 12 and 12 are fixed to the left and right side surfaces of the radiator 10.
The radiator 10 is arranged between a pair of left and right down tubes 11, 11 in a vehicle body frame, the left and right upper portions are supported by the down tubes 11, 11 via side plates 12, 12, and the left lower portion is moved toward the left side. The portion is supported by the down tubes 11 and 11 via the cross pipe 13. The down tubes 11, 11 have their upper ends fixed to the bed pipe and their rear ends connected to the main frame. A fork supporting a front wheel is supported on the head pipe so as to be steerable and rotatable.

As shown in FIG. 6, a pair of mounting flange portions 12a and 12b are provided in parallel at three upper and lower ends and an intermediate portion of the side plates 12 and 12 to have a U-shaped cross section. Has become. On the other hand, down tubes 11, 11
The mounting bracket 14 is fixed to the base plate by welding, as will be described later. On the rear side mounting flange portion 12b at the upper ends of both side plates 12, 12,
As shown in FIG. 5, one end of the mounting bracket 14 having a U-shaped vertical section is fixed.

That is, as shown in FIG.
The mounting bracket 16 having the U-shape fixed by welding is mounted so as to be sandwiched between the mounting flanges 12b. The member 17 made of an elastic material such as rubber is laid on top of each other, and the bolts 18 are attached to the washer 19, the rubber member 17, and the mounting bracket 1.
4, one end of the mounting bracket 14 is fixed to the rear mounting flange portion 12b of the side plate 12 by being inserted into the respective mounting holes of the mounting bracket 16 and the mounting flange portion 12b and screwed into the nut 15. On the other hand, the protruding portion on the other end side of the mounting bracket 14 is the down tube 1
The curved surface 14a that matches the outer peripheral surface of the down tube 11
It is fixed to the outer surface of the by welding.

The screen S is arranged on the front side of the radiator 10 and the front side F of each of the side plates 12 in the up, down, left and right directions via the above four mounting brackets 3.
Is attached to the mounting flange portion 12a. For mounting the mounting bracket 3 to the mounting flange portion 12a, as shown in FIGS. 5 and 6, a mounting metal fitting 16 to which the nut 15 similar to the one described above is fixed by welding is attached to the front side of the mounting member of the side plate 12. A fixing means is used in which the screw 20 is mounted in a state of being sandwiched by the mounting flange portion 12a of F, and the screw 20 is inserted into each of the mounting holes 3c of the mounting bracket 3, the mounting bracket 16 and the mounting flange portion 12a and screwed into the nut 15. There is.

A fan 2 for forcibly cooling the radiator 10 is provided at a lower portion on the rear surface side of the radiator 10.
1 is installed. In this fan 21, the end portions of the three mounting legs 21a, 21b, 21c are connected to both side plates 1
It is supported by being fixed to the mounting bracket portions 12b on the rear side R in the lower portions of the reference numerals 2 and 12 and the intermediate portion of the right side plate 12, respectively. For fixing the same, the same means as the above-described method of attaching the screen S to the attaching flange portion 12a of the attaching bracket 3 is used.

By the way, the conventional screen S is mounted by fixing the end portion of the mounting bracket projecting outward from the trim member to the down tube. On the other hand, in the screen S, the mounting piece 3b of the mounting bracket 3 provided on the inner side of the trim members 2A and 2B is
It is supported by being attached to the side plate 12 of the radiator 10. Therefore, the screen S of the present invention includes the trim members 2A and 2B to the mounting bracket 3
Does not project, it is possible to widen the width dimension on the left and right greatly within a range that does not exceed the gap between the both down tubes 11, 11. Therefore, as clearly shown in FIG. 4, there is an advantage that most of the gap d between the down tube 11 and the radiator 10 on both the left and right sides can be covered with the net material 1 for protection.

FIG. 7 is a front view showing another embodiment of the present invention. In the embodiment of FIG. 1, the case of using the inexpensive off-the-shelf trim members 2A and 2B as a standard product is illustrated, whereas in this embodiment, as shown in FIG. 8, the trim members 20A and 20B are used. Attaching piece 30
b and 30b are formed integrally by protruding laterally.

When the trim members 20A and 20B are bent along the folding curve shown by the broken line in FIG.
The mounting bracket 30 as shown in FIG. 7 is formed such that b and 30b face each other. This mounting bracket 30
The mounting hole 30C is formed at the same time when the portions of the trim members 20A and 20B indicated by the horizontal parallel lines are caulked and fixed to the net material 1, or after the caulking. Therefore, in this embodiment, in addition to the same effects as those of the embodiment of FIG. 1 described above, there are advantages that the number of parts can be reduced, the mounting work of the mounting bracket 30 can be reduced, and the cost can be further reduced.

[0023]

As described above, according to the first aspect of the present invention.
According to the radiator screen S, since the mounting bracket is fixed to the trim member by caulking, the mounting bracket can be attached to the trim member much more easily and quickly than the welding. The number of steps can be reduced and the manufacturing cost can be reduced.

According to the radiator screen S of claim 2 of the present invention, since the mounting bracket is integrally formed with the trim member, the number of parts is reduced and at the same time,
The work of mounting the mounting bracket to the trim member can be reduced,
The manufacturing cost can be further reduced.

[Brief description of drawings]

FIG. 1 is a front view showing a screen S of a radiator according to an embodiment of the present invention.

2A is an enlarged cross-sectional view taken along line AA of FIG. 1, FIG. 2B is an enlarged transverse cross-sectional view taken along line BB of FIG. 1, and FIG. The enlarged cross-sectional view cut along the CC line of FIG. 1 is shown, respectively.

3 (a) to 3 (d) are front views showing manufacturing steps of the above-mentioned embodiment.

FIG. 4 is a rear view showing the radiator with the screen S according to the above embodiment attached thereto.

5 is an enlarged cross-sectional view taken along line VV of FIG.

6 is an enlarged vertical sectional view taken along line VI-VI in FIG.

FIG. 7 is a front view showing a screen S of a radiator according to another embodiment of the present invention.

FIG. 8 is a front view showing a trim member of the embodiment.

[Explanation of symbols]

1 ... Net material, 1a ... Air passage hole, 2A, 2B, 20
A, 20B ... Trim member, 3, 30 ... Mounting bracket,
10 ... radiator.

Claims (2)

[Claims] 1. A screen mounted on the front surface of a radiator for radiating heat of cooling water for an engine, wherein a trim member is caulked around the outer periphery of a net material having a large number of air passage holes. Radiator screen with a mounting bracket fixed to the radiator that is not caulked. 2. A screen mounted on the front surface of a radiator for radiating heat of cooling water for an engine, wherein a trim member is caulked to the outer periphery of a net material having a large number of air passage holes. Radiator screen integrally formed with a mounting bracket that is fixed to the radiator.