JPS6017550Y2 - Vibration isolator for installing vehicle air conditioners - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a vibration-proof mounting device for mounting a main body of a vehicle air conditioner on a vehicle.

This type of anti-vibration mounting device has conventionally been installed on a vehicle body as shown in Fig. 1.
The leg piece 3 provided above and protruding from the side of the device main body 2 is fixed thereto.

That is, 4 is a support base, 5 is a vibration isolator consisting of a lower vibration isolator 6 and an upper vibration isolator 7, 8 is a spacer collar, 9 is a mounting bolt, 10 is a nut, 11 is a spring washer, and 12 is a special washer. , 13 are special spacers.

By tightening the mounting bolts 9 and nuts 10, the device main body 2 can be mounted and fixed via the leg pieces 3, and can be held elastically.

Note that dimension control during tightening is performed by the spacer collar 8, so that the leg pieces 3 can be fixed uniformly.

By the way, the material of the spacer collar 8 is usually SUS, and this is the same as the support base 4 made of N material.
If it comes into direct contact with the support base 4, there is a risk that the support base 4 will be damaged.

To prevent this, a special spacer 13 made of SUS material is interposed between the support base 4 and the spacer collar 8.

However, the use of this special spacer 13 requires assembly and labor, and it is easily lost when the main body of the apparatus is removed during maintenance or the like, and is often forgotten during reassembly, resulting in damage and damage.

The present invention was made with attention to the above circumstances, and its purpose is to have a relatively simple structure, but to
It is an object of the present invention to provide a vibration isolating device for mounting an air conditioner for a vehicle, which improves the workability of assembly and maintenance, etc., and can reliably prevent scratches.

An embodiment of the present invention will be described below with reference to FIG. 2 and subsequent figures.

In the figure, reference numeral 20 denotes a vehicle, and an installation hole 22 is provided approximately in the center of the roof 21 of the vehicle.

Further, a support frame 24 is provided along the periphery of the installation hole 22 to support an airtight gasket 23 that is an airtight member.

The installation hole 22 is provided with a device main body 2 of the vehicle air conditioner.
5 is inserted, and the leg piece 26 provided on this side rests on the airtight gasket 23 to maintain airtightness.

The leg piece 26 is further extended and fixed to a mounting vibration isolator 8 provided on the roof 21.

That is, 27 is a support base, which is made of the same AI material as the roof 21 and is fixed to the roof 21 by means such as welding.

A through hole 27a is bored in the approximate center of the support base 27, and a bolt insertion hole 28a is formed in the upper surface facing the through hole 27a.
A lower vibration isolator 28 having a structure is mounted thereon.

The lower vibration isolator 28 is constructed as shown in FIG. 4 and is made of vibration isolator rubber 30 to which a metal piece 29 having the bolt insertion hole 28a is attached to the lower surface.

The vibration isolating rubber 30 is provided with a fitting hole 30a having a diameter Bφ larger than the diameter Aφ of the bolt insertion hole 28a.

Further, a thin metal piece 31 is attached to the peripheral edge of the upper surface.

These metal pieces 29 and 31 are made of SUS material.

As shown in FIG. 2, the leg piece 26 is extended to rest on the lower vibration isolator 28, and a mounting recess 32a provided in the upper vibration isolator 32 is fitted into a mounting hole 26a formed in the leg piece 26.

The upper vibration isolator 32 is made of a vibration isolator 34 with a metal piece 33 made of SUS material attached to the upper surface thereof, and has a fitting hole 32b.

The lower vibration isolator 28 and the upper vibration isolator 32 constitute a vibration isolator elastic member 35.

A spacer collar 36 fits into the vibration-proof elastic member 35, that is, into the fitting holes 30a and 32b.

This spacer collar 36 is made of SUS material and rests on the metal piece 29 of the lower vibration isolator 28 since its inner diameter is approximately the same as the bolt insertion hole 28a.

Further, the overall length is slightly shorter than the height of the vibration-proof elastic member 35 before being tightened with a mounting bolt 37, which will be described later.

There are S on these spacer collars 36 and vibration-proof elastic members 35.
The head 37a of the mounting bolt 37 is mounted via a special washer 38 made of US material and a spring washer 39.

The mounting bolt 37 fits into the spacer collar 36, the bolt insertion hole 28a, and the through hole 27a, and the threaded portion 37b projects downward from the support base 27.

The nut 4 is screwed into this protruding portion, and the vibration-proof elastic member 35, spacer collar 36, and leg piece 26 are tightened and fixed.

Therefore, the spacer collar 36 always rests on the metal piece 29 of the lower vibration isolator 28, and even if the vehicle body 20 vibrates during driving, it will not fall onto the support base 27. There is no damage to the support stand 27.

During assembly and maintenance, the spacer collar 36 only needs to be inserted into the vibration-proof elastic member 35, making the above operations extremely easy.

As explained above, according to the present invention, a metal piece is integrally provided on the support base abutting surface of the vibration-proof elastic member interposed between the support base and the leg piece of the device main body, and this metal piece has vibration-proof elastic properties. It is designed to fit into a member and receive a mounting bolt through which the mounting bolt is inserted.

Therefore, it is possible to reliably prevent the support base from being damaged and it will not be damaged.

In addition, there is no need for a special spacer as in the past, which improves assembly workability, eliminates the need to worry about removing the device body during maintenance, and can be provided at a low price.

Furthermore, since the leg piece is elastically supported by the airtight packing and the vibration-proof elastic member, a double buffering effect is obtained, and the durability of the air conditioner is improved.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional view of an attached vibration isolator showing a conventional example of the present invention, Fig. 2 is a longitudinal cross-sectional view of an attached vibration isolator showing an embodiment of the present invention, and Fig. 3 is a front view thereof. FIG. 4 is a partial vertical sectional view of the vibration-proof elastic member. 26...Leg piece, 25...Device body, 2
3...Airtight packing, 20...Vehicle,
27... Support stand, 35... Anti-vibration elastic member, 36... Spacer collar, 37...
・Mounting bolt, 40...Nut, 29...
··Metal piece.

Claims (1)

[Scope of utility model registration request] A vehicle air conditioner has a leg piece protruding from the main body of the vehicle, and the leg piece is supported on the vehicle via an airtight packing. a vibration-proofing elastic member interposed between the extending leg piece; a spacer collar that fits into the vibration-proofing elastic member; and a spacer collar inserted through the spacer collar to support the leg piece together with the vibration-proofing elastic member. A mounting bolt and a nut are provided to be tightened and fixed to the base, and a metal piece is integrally provided on the support base contact surface of the vibration-proof elastic member, and the spacer collar is received by the metal piece. A mounting vibration isolator for a vehicle air conditioner, characterized by: