JPS60205043A - Vibration isolating support construction - Google Patents

Abstract

PURPOSE:To prevent a blower from transmitting its vibration directly to a car body frame so as to improve a vibro-isolating effect, by providing a protruding part of circular or angular tube shape on at least one surface of a vibro-isolating rubber. CONSTITUTION:This vibration isolating construction is formed such that a blower is mounted to a car body frame integrally by an angular washer 5, bolt 6, washer 7 and nuts 8, 9 by placing vibro-isolating rubbers 23, 24 in both sides of a mounting leg 22. The vibro-isolating rubber 23 provides in its central part a cylindrically protruding part 23a for preventing the mounting leg 22 from being brought into direct contact with the bolt 6, further the vibro-isolating rubber 23 provides on its reverse surface column-shaped protrusions 23b for preventing the vibro-isolating rubber from rotating.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an improvement in a vibration-proof support structure for a vehicle-mounted electric blower.

[Background of the invention]

The prior art will be explained with reference to FIGS. 1 to 3.

As shown in FIG. 2, the conventional anti-vibration support structure includes anti-vibration rubbers 3 and 4 placed on both sides of the mounting legs 2 of the blower, and square washers 5. It was integrally tightened to the vehicle body frame 1 with bolts 6, washers 7, and nuts 8°9.

In this structure, when the nuts 8 and 9 are tightened, the rotational force of the nuts 8 and 9 is applied to the vibration isolating rubbers 3 and 4 and the frame l.

If the force is greater than the force exerted by the mounting foot 2, the vibration isolating rubber 3 will rotate as shown in Figure 3, and the end of the vibration isolating rubber 3 will hit the corner of the vehicle body frame l, reducing the vibration damping effect. There was also the possibility of cracks occurring at the ends of the vibration isolating rubber. In addition, if the vibration isolating rubbers 3 and 4 are misaligned due to rotation, the second
The bolts 6 and the mounting feet 2 come into contact at the ■ and ■ parts, and the vibration of the blower is directly transmitted to the vehicle body frame l through the bolts 6.
Improvements were desired because the ride comfort of the vehicle deteriorated and passengers felt uncomfortable.

[Purpose of the invention]

An object of the present invention is to provide a vibration-isolating support structure with high vibration-isolating effect.

[Summary of the invention]

The feature of the present invention is that the structure of the vibration isolator has been improved to prevent rotation of the vibration isolator and to prevent direct contact between the bolt and the mounting foot.

[Embodiments of the invention]

An embodiment of the present invention will be explained with reference to FIGS. 4 to 7. The outline of the structure is as shown in FIG. 5, where vibration-proof rubbers 23 and 24 are placed on both sides of the mounting foot 22, and square washers 5. It is integrally tightened to the vehicle body frame 21 with bolts 6, washers 7, and nuts 8 and 9. The details of the anti-vibration rubber 23 and 24 are shown in FIGS. 6 and 7. In other words, in order to prevent direct contact between the mounting foot 22 and the bolt 6, the anti-vibration rubber 23 has a central part as shown in FIG. to 2
A cylindrical protrusion 3a is provided, and a cylindrical protrusion 23b is provided on the opposite surface to prevent the vibration isolating rubber from rotating.

Similarly, the anti-vibration rubber 24 is also provided with a protrusion 24b.

The cylindrical projections 23b and 24b in FIG.
By fitting into the hole provided in 1 and the hole provided in the mounting foot 22, rotation of the vibration isolating rubber 23 and 24 is prevented. Also,
The mounting foot 22 and bolt 6 are not in contact with each other due to the protrusion of 23a.

This structure allows a part of the conventional structure (Fig. 2) to be easily modified, prevents a decrease in the vibration-proofing effect, and also prevents cracks in the vibration-proof rubber. In addition, the anti-vibration rubber 23.24 and the frame 21. Rotation can be prevented by applying an adhesive to the contact surface of the mounting foot 22, but this is not a good idea because it is difficult to replace the anti-vibration rubber during periodic inspections and the contact agent deteriorates over time.

〔Effect of the invention〕

According to the present invention, it can be applied not only to newly designed products but also to already delivered products, and the drawbacks of the conventional products can be completely covered.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of a conventional anti-vibration support structure, Fig. 2 is a view from the ■-■ arrow in Fig. 1, Fig. 3 is a plan view showing the state when the anti-vibration rubber is rotating, and Fig. 4 is a cross-sectional view of a conventional anti-vibration support structure. 3 is a top plan view, FIG. 5 is a sectional view of the anti-vibration support structure of the present invention, and FIGS. 6 (a), (b), and 7 (a) and (b) are the patent attorney Akio Takahashi. Ki II ￥1 謬 70 謬 3 Senko U mouth 1 hair 50

Claims (1)

[Scope of Claims] 1. In a vibration-proof support structure in which vibration-proof rubber is attached to both sides of the mounting foot of a product to be vibration-proofed and is integrally fastened to the other mounting part, at least one side of the vibration-proof rubber is provided with a cylindrical shape, Or an anti-vibration support structure characterized by having a square tubular protrusion. 2. The anti-vibration support structure according to claim 1, wherein a plurality of protrusions are provided on at least one side of the anti-vibration rubber.