JPH03217329A - Upper support device for radiator - Google Patents

Abstract

PURPOSE:To facilitate ensurance of a proper clearance size enough to allow vertical vibration of a radiator by coupling the two end parts of a bracket to a car body frame and an upper resilient body, and coupling a regulating bolt between the bracket and the car body frame. CONSTITUTION:The under surface of a lower tank 1a of a radiator 1 is supported to a lower member 2 of a car body frame through a lower resilient body 4. In this case, the one end part of a bracket 6 is fastened against an upper member 3 by means of a bolt 7, an upper resilient body 9 is engaged with an engaging hole 8 formed in the other end part of the bracket, and engaged with a guide pin 5 protruded from an upper tank 1b of the radiator 1. A regulating bolt 10 inserted in the middle part of the bracket 6 is inserted in a staged part 3a formed by bending an upper member 3 and screwed in a nut 11. By rotating operation of the regulating bolt 10, a clearance size be tween the upper tank 1b and the upper resilient body 9 is set to an optimum value.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention constitutes a vibration system by elastically supporting a lasier for an internal combustion engine mounted on an automobile against the body frame of the automobile. In an elastic support device that uses the vibrations of a radiator to attenuate vehicle body vibrations, that is, the dynamic damper effect of the radiator, the vehicle body vibrations are damped. This invention relates to improvements in support devices.

[Conventional technology]

This type of elastic support device generally supports the lower part of the radiator on the body frame of an automobile via a lower elastic body, while the upper part of the radiator is supported on a bracket attached to the body frame via an upper elastic body. By doing so, it is configured to allow vertical vibration of the radiator.

Because there are considerable errors in the height of the radiator and the height of the body frame due to machining errors in the radiator and the body frame, we simply supported the top of the radiator on a bracket attached to the body frame. In a configuration in which the upper part of the radiator is not provided, the vertical distance between the upper part of the radiator and the bracket varies, and the amount of deformation of the lower elastic body and the upper elastic body, in other words, the dynamic spring constant of the lower elastic body and the upper elastic body varies. As a result, the dynamic damper effect of the radiator fluctuates greatly, and it may become impossible to obtain a predetermined dynamic damper effect.

Therefore, Japanese Utility Model Application Publication No. 61-129615 as a prior art discloses that the bracket in the upper support device is a vehicle body side bracket fixed to the vehicle body frame and having an L-shape in side view.
The radiator side bracket is separated from the radiator side bracket, which has an inverted L shape when viewed from the side, to which the upper elastic body is attached, and the vertical part of the radiator side bracket is attached to guide means formed on the vertical part of the vehicle body side bracket so as to be vertically slidable. Furthermore, it is proposed that the height of the radiator side bracket be made adjustable by threading adjustment bolts between horizontal pieces projecting laterally from the vertical portions of both brackets.

[Problem to be Solved by the Invention] However, in this prior art, the height position of the radiator side bracket can be freely adjusted, so even if there is an error in the dimensions of the vehicle body frame or the height dimension of the radiator, the upper part of the radiator can be adjusted. On the other hand, since the radiator side bracket is attached to the vehicle body side bracket so that it can slide vertically, the distance between the vehicle body side bracket and the rasheater side bracket can be maintained constant. Because the brackets had to be machined into complicated shapes, it took a lot of effort to process both brackets.
There was a problem in that the manufacturing cost of the upper support device increased significantly.

Moreover, since the vehicle body side bracket must be formed in an L-shape when viewed from the side, and the radiator side bracket must be formed into an inverted L-shape when viewed from the side, the entire upper support device becomes larger, resulting in an increase in weight and space. was there.

Furthermore, in the prior art, in which the vertical part of the radiator side bracket is slidably mounted up and down relative to the guide means formed on the vertical part of the vehicle body side bracket, the radiator vibrates in the horizontal direction, causing the radiator to vibrate in the horizontal direction. When a horizontal force is applied to the side bracket, rattling is likely to occur at the point where it is attached to the vehicle body side bracket, which impedes the smooth horizontal vibration of the lasiator and prevents the desired dynamic damper effect from being achieved. There was also a problem in that there was a risk that it would not be possible to do so.

SUMMARY OF THE INVENTION An object of the present invention is to provide an upper support device that solves the problems of manufacturing cost, increase in size, and vibration of the radiator in the horizontal direction.

[Means to solve the problem]

In order to achieve this object, the present invention supports a lower part of a radiator on a body frame of an automobile via a lower elastic body, and supports an upper part of the radiator on a bracket attached to the body frame via an upper elastic body. In the radiator support device, one end of the bracket is fixed to the vehicle body frame, the upper elastic body is provided at the other end of the bracket, and the upper elastic body is provided between the one end and the other end of the bracket. An adjustment bolt for adjusting the height of the other end of the bracket is provided between the midway portion and the vehicle body frame.

[Action/effect of the invention]

With this configuration, the height of the other end of the bracket can be adjusted by rotating the adjustment bolt, so it is possible to avoid machining errors in the dimensions of the vehicle body frame or errors in the height of the radiator. Even if there is, the distance between the upper part of the radiator and the other end of the bracket can be adjusted to an appropriate dimension that allows smooth vertical vibration of the radiator.

Moreover, since there is only one bracket, the bracket will not shake at all when the radiator vibrates in the horizontal direction, so it is possible to ensure smooth vibration of the radiator in the horizontal direction. This, together with the fact that the distance between the top of the radiator and the other end of the bracket can be adjusted to an appropriate dimension that allows smooth vertical vibration of the radiator, ensures the desired dynamic damper effect. You will be able to get it.

Furthermore, since it has an extremely simple structure, just one bracket is provided extending from the vehicle body frame toward the top of the radiator, and an adjustment bolt is provided between this bracket and the vehicle body frame, the entire device can be made compact. Furthermore, the weight can be reduced, and since there is no need to perform complicated processing on the bracket, manufacturing costs can be significantly reduced.

Therefore, according to the present invention, an upper support device that can obtain a predetermined dynamic damper effect regardless of errors in the dimensions of the vehicle body frame or the height dimensions of the radiator can be manufactured at an extremely low cost, and can also be made more compact. It also has the effect of reducing weight.

〔Example〕

Next, an embodiment of the present invention will be described based on the drawings (Figs. 1 to 4). In the drawings, reference numeral 1 indicates a radiator including a lower tank 1a and an upper tank 1b, and reference numeral 2 indicates a lower member of the body frame of an automobile. Reference numeral 3 indicates an upper member of a body frame of an automobile. A guide pin 5 is projected upward from the upper surface of the Atsupa tank 1b.

One end of a plate-shaped bracket 6 extending upward of the radiator 1 is fastened to the upper surface of the upper member 3 of the vehicle body frame with one bolt 7, and the other end of the bracket 6 is bored. A push-shaped upper elastic body 9 made of an elastic material such as rubber is fitted into the engagement hole 8 , and the upper elastic body 9 is fitted onto the guide pin 5 .

Then, a step portion 3a is bent and formed on the upper surface plate of the upper member 3 of the vehicle body frame, and the adjustment bolt 10 inserted into the middle portion between one end portion and the other end portion of the bracket 6 is inserted into the step portion 3a. Screw it into the nut 11 fixed to.

Note that the inner diameter d of the upper elastic body 9 is formed to be considerably larger than the outer diameter dimension D of the guide pin 5 so that the guide pin 5 can be tilted significantly, and the inner circumferential surface 9a of the upper elastic body 9 is By integrally molding annular protrusions 9b that come into contact with the guide pin 5 at appropriate height positions above and below,
The dynamic damper effect is improved by holding the radiator 1 so that it can be tilted greatly and smoothly guiding the vertical movement of the radiator 1 without causing distortion.

In the above configuration, when the adjustment bolt 10 is screwed in, the bracket 6 is curved and deformed downward as shown by the dashed line in FIG. 4, and the other end of the bracket 6 moves downward, while the adjustment bolt 10 is When the bracket 6 is unscrewed, the elasticity of the bracket 6 causes it to move back upwards, and the other end of the bracket 6 moves upwards. Since the height H from the top to the tip of the bracket 6 can be freely adjusted, it is possible to prevent errors in the distance between the upper and lower members 2 and 3 in the vehicle body frame, or in the height of the radiator L. Even if the distance e between the upper tank 1b and the upper elastic body 9 is
The dimensions can be set to allow smooth vertical vibration.

Furthermore, since there is only one bracket 6, even if the radiator 1 vibrates in the horizontal direction, the bracket 6 will not rattle due to the vibration, ensuring smooth vibration of the radiator 1 in the horizontal direction. This, together with the fact that the gap e between the upper tank 1b and the upper elastic body 9 can be maintained at a predetermined value, reduces the height between the upper and lower members 2 and 3 in the vehicle body frame. A predetermined dynamic damper effect can be reliably obtained irrespective of the length dimension or the height dimension of the rashik 1.

Furthermore, since the structure is extremely simple, just fixing one bracket 6 to the upper member 3 of the vehicle body frame and providing an adjustment bolt IO between the middle part of the bracket 6 and the upper member 3 of the vehicle body frame, the device is easy to use. The entire structure can be made compact and lightweight, and since there is no need to process the bracket 6 into a complicated shape, manufacturing costs can be kept extremely low.

The base end of the bracket 6 may be fixed to an appropriate part of the upper member 3 on the vehicle body frame by welding or the like, but as in the embodiment, one When the bracket 6 is fixed with the bolt 7, the adjustment bolt 10 plays the role of positioning the bracket 6,
Even if the bracket 6 is only fastened with one bolt 7, the adjusting bolt 10 can prevent the bracket 6 from rotating in the horizontal direction when fastening with the bolt 7. There is an advantage that the elastic body 9 and the guide pin 5 can be very easily fastened in a predetermined posture without twisting.

As a means for configuring the height of the other end of the bracket 6 to be freely adjustable using the adjustment bolt 10, as shown by the dashed line in FIG.
A horizontal member 12 protruding laterally toward the radiator 1 may be fixed, and a bolt 10 may be provided between the horizontal member 12 and the middle part of the bracket 6, or, as shown in FIG. It goes without saying that other means may be employed, such as forming the upper and lower parts by bending them in different levels and providing a bolt 10 between the upper part and the upper member 3 of the vehicle body frame.

In addition, the forms of the lower elastic body and the upper elastic body, and the support structure of the lower elastic body and the upper elastic body are not limited to the embodiments. Needless to say, it may be in the form of

[Brief explanation of drawings]

The drawings show embodiments of the present invention, with FIG. 1 being a longitudinal sectional view and FIG.
The figure is a plan view, and Figure 3 is an enlarged view of the peripheral part of the upper elastic body.
FIG. 4 is a diagram showing the operation, and FIG. 5 is a diagram showing another embodiment. 1...Radiator, la...Lower tank, lb
...Atsuba tank, 2..Lower member of the vehicle body frame, 3..Upper member of the vehicle body frame, 4..
Lower elastic body, 5... Guide pin, 6... Bracket, 7... Fastening bolt, 9... Upper elastic body, 10... Adjustment bolt.

Claims (1)

[Claims] (1) Supporting a radiator in which the lower part of the radiator is supported on the vehicle body frame of the automobile via a lower elastic body, and the upper part of the radiator is supported on a bracket attached to the vehicle body frame via an upper elastic body. In the device, one end of the bracket is fixed to the vehicle body frame, and the upper elastic body is provided at the other end of the bracket, and a midway portion between the one end and the other end of the bracket is fixed to the vehicle body. An upper support device for a radiator, characterized in that an adjustment bolt for adjusting the height of the other end of the bracket is provided between the bracket and the frame.