JPH07290977A - Radiator support cushion - Google Patents

Abstract

PURPOSE:To provide a radiator support cushion easy to manufacture in simple structure, hard to be influenced by heat and a load and excellent in durability. CONSTITUTION:This is a radiator support cushion to support the upper end or the lower end of a radiator R, and it has a base part 1 fixed on a vehicle main body, a cushion part 2 forming a cantilever spring by way of extending from the base part 1 and to elastically deform by specified spring force and a radiator holding part 3 provided on the head end of this cushion part 2 and to support the upper end or the lower end of the radiator R. These base part 1, cushion part 2 and radiator holding part 3 are integrally formed of a metal plate.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiator support cushion for supporting a radiator mounted on a vehicle.

[0002]

2. Description of the Related Art Conventionally, the top and bottom of a radiator are elastically supported through a radiator support cushion,
The dynamic damper is configured by the mass of the radiator and the spring action of the radiator support cushion to suppress the vehicle body vibration.

FIG. 5 shows a general structure of such a radiator support cushion. In the figure, the radiator R is supported at its upper end and lower end by an upper support 7 and a lower support 8, respectively. The upper support 7 has a metal mounting portion 71 whose one end is fixed to the vehicle body, and a metal base 72 curved in an inverted U shape is joined to the lower surface of the mounting portion 71 on the other end side. ing. A hollow rubber body 73 is joined to the inner surface of the base body 72, and an inverted U-shaped holding plate 74 is attached to the lower end surface of the rubber body 73.
Are arranged by insert molding and hold the upper end of the lower radiator R.

The lower support 8 comprises a metal base 81 fixed on the vehicle body, a metal support plate 83 for supporting the lower end portion of the radiator R, and a rubber body 82 interposed therebetween. The rubber body 82 is arranged so as to cover the upper opening of the base body 81, and the support plate 8 is provided on the upper surface thereof.
3 are joined. The support plate 83 and the rubber body 82 are provided with a mounting hole penetrating them, into which a projection R1 projecting from the lower end of the radiator R is inserted and fixed.

In the radiator support structure as described above, the upper support 7 and the lower support 8 elastically support the radiator R by the action of the rubber bodies 73 and 82, respectively. Further, by adjusting the resonance point of the vibration system determined by the mass of the radiator R and the spring constants of the radiator supports 7 and 8 to an appropriate range, it is possible to reduce the vibration of the vehicle body.

[0006]

However, since the conventional radiator support cushion uses a rubber body,
The cost tends to be high, for example, it is necessary to perform vulcanization adhesion. In addition, the fact that the temperature near the radiator becomes extremely high and that vibration is constantly received is an important design factor for ensuring durability, which has also been a factor of high cost.

On the other hand, as a simple structure, there is a radiator support integrally formed of a resin material, which is advantageous in cost because it can be extruded. However,
In addition to the required spring property, when used in an environment susceptible to salt damage and the like, it is necessary to have excellent chemical resistance, and it is not easy to select a material. Moreover, the resistance to heat and load was not always sufficient.

It is therefore an object of the present invention to provide a radiator support cushion which has a simple structure, can be manufactured at a reduced cost, is not affected by heat and load, and is excellent in chemical resistance.

[0009]

The structure of the present invention will be described with reference to FIG. 1. The radiator support supports the upper end or the lower end of the radiator R, and the base 1 fixed to the vehicle body, and A cushion portion 2 extending from the base portion 1 to form a cantilever spring and elastically deformed by a predetermined spring force, and a radiator support portion 3 provided at a tip of the cushion portion 2 and supporting an upper end or a lower end of the radiator R are provided. Have. The base portion 1, the cushion portion 2, and the radiator holding portion 3 are integrally formed of a metal plate (claim 1).

In the radiator support cushion for supporting the upper end of the radiator R, a frame-shaped stopper portion 4 can be provided integrally with the base portion 1 above the cushion portion 2 and the radiator holding portion 3, whereby the radiator can be provided. The vertical displacement of R is restricted (claim 2). As a radiator support cushion for supporting the lower end of the radiator R (FIG. 2), one end of a metal plate is used as a base 1 fixed to the vehicle body, and this is bent in an arc shape at an intermediate part to form the above-mentioned base. A cantilever spring extending in one direction is formed to form a cushion portion 2, and a hole for penetrating a plate surface is provided at a tip end portion of the cushion portion 2 for inserting a radiator lower end portion and holding the radiator holding portion. There is a configuration with 3 (claim 3).

[0011]

The vibration of the radiator R is absorbed by the bending deformation of the cushion portion 2 constituting the cantilever spring, and the upper end portion or the lower end portion thereof is elastically supported to suppress the transmission of the vibration. Since the cushion portion is made of metal, it is less susceptible to heat and load, and there is no risk of deterioration due to aging. Therefore, the resonance point is stable and the reliability is improved. Further, since the surface treatment can be easily performed as compared with a conventional rubber material or the like, the chemical resistance can be easily improved by performing an appropriate treatment. Further, since no rubber material is used, there is no need for vulcanization adhesion and the like, and the production is easy and the cost can be reduced.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1A and 1B show an example in which the present invention is applied to an upper support that supports the upper end portion of a radiator.
In the upper support of this embodiment, one end of a metal plate is attached to the base 1
As an example, a bolt hole 11 for attachment is provided, and a bolt is inserted through the bolt hole 11 and fixed to a vehicle frame (not shown). A cantilever spring extending diagonally downward from the base 1 with a constant width is provided as a cushion portion 2. The cushion part 2 is adjusted so as to have a predetermined spring constant depending on its plate thickness and the like. The tip portion of the cushion portion 2 is curved in a semicircular shape that follows the shape of the upper tank of the radiator R (FIG. 1 (B)), and forms a radiator holding portion 3.

A frame-shaped stopper portion 4 continuing from the base portion 1 is provided above the cushion portion 2 and the radiator holding portion 3 to regulate the vertical displacement of the radiator. Reinforcing ribs 41 are provided on the upper surface of the stopper portion 4 so as to surround the outer peripheral edge. When the radiator vibrates greatly and the radiator holder 3 rotates a large amount in the counterclockwise direction in the figure, the radiator may come off from the holder 3, but the stopper 4 comes into contact with the upper side of the radiator and is displaced further. To prevent the radiator from coming off.

FIG. 2 shows an example in which the present invention is applied to a lower support that supports the lower end of a radiator. The lower support of this embodiment is formed by bending a metal plate, and has one end as a base portion 1 attached to a vehicle body. The base portion 1 has a fitting portion 12 formed by recessing the central portion and projecting downward, and is fixed by fitting the fitting portion 12 into a through hole F1 provided in a vehicle frame F below. . A cantilever spring, which is continuous with the base 1 and is bent in an arc shape and further extends in the direction of the base 1, is formed above the base 1, and does not form a cushion portion 2 which is elastically deformed by a predetermined spring force. There is. A through hole is provided in the central portion of the plate surface at the tip of the cushion portion 2 to form a radiator holding portion 3,
The projection R1 protruding from the lower end of the lower tank of the radiator R is fitted and fixed to this.

The upper and lower supports elastically retain the upper and lower portions of the radiator, and the cushion portion 2 is elastically deformed to prevent radiator vibration. Further, by setting the upper support and the lower support to predetermined spring constants, a dynamic damper having a radiator as a mass body is configured to reduce vibration of the vehicle body.

Since both the upper support and the lower support having the above construction are made of a metal material, they have excellent heat resistance and there is no fear of deterioration due to repeated load. Therefore,
The initial spring characteristics can be maintained and the resonance point becomes stable. Further, since it can be formed by processing a single metal plate, it is easy to manufacture and the cost can be reduced.

FIG. 3 shows another example of the upper support.
In this embodiment, the tip of the stopper 4 above the radiator holder 3 is bent obliquely downward so that the bent portion 42 and the radiator holder 3 are substantially parallel to each other. If an excessive load is applied to the radiator in the front-rear direction (left-right direction in the figure), the radiator may come off from the holding portion 3. However, since the bent portion 42 supports this, the radiator does not fall and the radiator can be prevented from falling. .

FIG. 4 is an example of another shape of the upper support. In this embodiment, a metal plate is bent in a substantially V-shape at an intermediate portion to form the bent portion as a base portion 1, and the base portion 1 is fixed to a vehicle frame F below by bolts 5. A lower half portion that extends obliquely downward from the base portion 1 by forming a cantilever spring is a cushion portion 2, and a tip end portion thereof is curved in a semicircular shape to form a radiator holding portion 3. An upper half portion that extends obliquely upward from the base portion 1 serves as a stopper portion 4 and regulates the displacement of the radiator holding portion 3 in the vertical direction. A through hole is formed in the upper surface of the radiator holding portion 3 and a stopper rubber 61 is fitted and fixed therein, and a stopper rubber 62 is formed on the lower surface of the stopper portion 4 facing the stopper rubber 61.
Are joined together. When the vibration is large, the radiator holding portion 3 may come into contact with the lower surface of the stopper portion 4 to generate abnormal noise. In the present embodiment, the stopper rubber 61,
62 serves as a cushioning material and prevents metal surfaces from hitting each other, thus preventing generation of abnormal noise. The stopper rubber 6
Only one of the stopper rubber 62 and the stopper rubber 62 may be provided.

[0019]

Since the radiator support of the present invention is integrally formed of metal, it has a simple structure and is easy to manufacture. Moreover, since it is less susceptible to heat and load, the resonance point is stable, the spring characteristics are not deteriorated, and the reliability is excellent. Further, since no rubber material is used, vulcanization adhesion is not required, which is economical.

[Brief description of drawings]

FIG. 1 is an embodiment of the present invention, (A) is an overall perspective view of an upper radiator support, and (B) is an overall side view of an upper radiator support.

FIG. 2 is an overall side view of a lower radiator support according to a second embodiment of the present invention.

FIG. 3 is an overall perspective view of an upper radiator support according to a third embodiment of the present invention.

FIG. 4 is an overall side view of an upper radiator support according to a fourth embodiment of the present invention.

FIG. 5 is a cross-sectional view showing a conventional radiator support structure using a radiator support.

[Explanation of symbols]

 1 Base 11 Bolt Hole 2 Cushion 3 Radiator Holding 4 Stopper 41 Rib

Front Page Continuation (72) Inventor Tatsuo Suzuki 1 Nagachibata, Ochiai, Kasuga-cho, Nishikasugai-gun, Aichi Toyoda Gosei Co., Ltd. In the company

Claims (3)

[Claims] 1. A radiator support cushion for supporting an upper end or a lower end of a radiator, the base portion being fixed to a vehicle body, and a cantilever spring extending from the base portion, the cushion being elastically deformed by a predetermined spring force. And a radiator holding portion provided at a tip portion of the cushion portion and supporting an upper end or a lower end of the radiator, and the base portion, the cushion portion and the radiator holding portion are integrally formed of a metal plate. Radiator support cushion featuring. 2. A radiator support cushion for supporting the upper end of the radiator is provided with a frame-shaped stopper portion integrally with the base portion above the cushion portion and the radiator holding portion so as to regulate the displacement of the radiator in the vertical direction. The radiator support cushion according to claim 1, wherein the radiator support cushion is provided. 3. A radiator support cushion for supporting a lower end of a radiator, wherein one end of a metal plate serves as a base fixed to a vehicle body, and the base is bent in an arc shape at an intermediate portion. A cantilever spring extending in the direction is formed to form a cushion portion, a hole penetrating the plate surface is provided at the tip of the cushion portion, and a radiator holding portion for inserting and holding the lower end portion of the radiator is formed. Radiator support cushion characterized by that.