JPS5933865Y2 - Compressor mounting structure - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in the structure for attaching a compressor to an engine in an engine-driven car air conditioner or the like.

Conventionally, the installation of a compressor engine has been carried out as shown in FIGS. 1 to 4.

FIG. 1 shows the mounting positions of a compressor for an air conditioner in a passenger car, where 1 is an engine, 2 is a compressor, and 3 is a front fender.

The compressor 2 is driven by a V-belt from the engine.

4 is the crankshaft pulley of engine 1, 6 is the magnetic clutch with pulley, 7 is the lower bracket attached to the engine with bolt 9, 8 is the upper bracket attached to the engine with bolt 8', 5 is the crankshaft pulley V interposed between 4 and magnetic clutch 6
It's a belt.

The upper bracket 8 is provided with an arcuate long hole.

2a. 2b is a lower mounting leg extending to the lower part of the compressor 2, and 2c is an upper mounting leg extending to the upper part of the compressor 2.

io and io' are bolts, 11 is a washer, and 12 is a nut.

When installing the compressor 2 on the engine 1, one worker supports the compressor 2, which weighs around 8 kg, at a predetermined position on the side of the engine 1 through the fender 3 in a half-sitting position, and another worker tightens the bolts 10. Mounting leg 2a.

2b and into the common holes of lower bracket 7, and then tighten washer 1.
1. Loosely tighten nut 12.

Next, attach the V-belt 5 between the crankshaft pulley 4 and the magnetic clutch 6, adjust the tension of the V-belt 5, attach the upper mounting leg 2c to the upper bracket 8 with the bolt 10', and tighten the bolts 10 and 10'. It was tightened.

However, this requires the worker to support the compressor in a half-slumped position during the work, which causes great pain.

Also, attach the bracket 7 and the mounting legs 2a and 2.
It takes a long time to insert the compressor into the common hole (b) because the compressor is heavy.

Also, at least two workers are required: one to support the compressor and one to install the bolts.

Furthermore, since the weight of the compressor is supported by the fastening surface pressure and shear stress of the bolts, there are drawbacks such as the need for high strength or thick bolts.

The present invention is for attaching a compressor to an engine by fixing the mounting legs provided at the top and bottom of the compressor with bolts to a pair of upper and lower brackets fixed to the engine, in which the lower part of the lower mounting leg has a downwardly convex arc shape. A bolt mounting hole is provided at the core position of the same arc shape, and a protrusion whose upper surface for mounting the lower mounting leg on the lower bracket follows the arc shape, and an inner arc on the upper surface of the protrusion above the protrusion. It is characterized by a bolt mounting hole provided at the core position of the shape, and its purpose is to eliminate the above-mentioned conventional drawbacks,
The objective is to provide a compressor mounting structure that can be easily and accurately mounted by one worker.

The present invention is constructed as described above, and when installing the compressor on the engine, first place the lower mounting leg of the compressor 7"L/bracket on the upper surface of the protrusion of the lower bracket fixed to the engine, and then Leave it leaning against the engine.

In this state, the bolt mounting holes of the mounting leg and bracket are aligned, and the two are loosely attached with bolts.

Next, ■ Attach the belt and swing the compressor around the same bolt. ■ When the belt tension reaches the specified level, attach the upper mounting leg to the upper bracket with the bolt.

Tighten both bolts firmly to complete the compressor installation.

As described above, according to the present invention, the compressor can be temporarily placed on the lower bracket protrusion, and the lower surface of the lower mounting leg of the compressor and the upper surface of the protrusion have the same arc shape. Since the bolt mounting holes are both located at the center of the arc shape, the lower bolts can be mounted in any direction of the compressor.

Therefore, the work of installing the compressor can be done by one person, in a short time, and with high precision.

Furthermore, since the weight of the compressor is also supported by the protrusions, the bolts can be made thinner than before, which improves installation accuracy and improves workability.

The present invention will now be described in detail with reference to the most preferred embodiment shown in FIGS. 5-8.

In the figures, the same reference numerals indicate the same parts as above.

The lower surfaces of the lower mounting legs 2a, 2b of the compressor 2 have an arc shape, and a mounting hole for a bolt 10 is provided at the center of the arc shape.

A protrusion 7a is provided on the outer surface of the lower bracket 7.

Although not shown, there is a mounting leg 2 at the other end of the bracket 7.
A protrusion 7b is provided corresponding to b.

The upper surfaces of the projections 7a and 7b are attached to the mounting legs 2a and 2.
It has the same arc shape as the lower surface of b, and a mounting hole for a bolt 10 is provided in the bracket 7 at a position above the arc shape, which corresponds to the center position of the arc shape.

In this embodiment, the protrusion has an integral structure with the bracket 7, but the structure is not limited thereto. For example, the protrusion may be formed separately and fixed to the bracket.

This embodiment is constructed as described above, and when installing the compressor 2 on the engine 1, the operator must first temporarily place the compressor 2 on the protrusions 7a and 7b of the lower bracket 7, and then lean it against the engine 1. Keep it hidden.

At this time, the bolt mounting holes of the bracket 7 and the protrusions 7a and 7b are in the same position, and the bolt 10 is inserted therein, and both are loosely tightened with a washer 11 and a nut 12.

Next, the V-belt 5 is installed between the crankshaft pulley 4 and the magnetic clutch 6, and the compressor 2 is swung around the bolt 10 in a direction that moves the compressor 2 away from the engine 1.
After adjusting the tension of bolt 5, attach upper mounting leg 2C to bolt 10'.
Attach it to the upper bracket 8 and firmly tighten the poles N0 and 10' to complete the installation of the compressor 2.

In this way, according to this embodiment, when the compressor is installed, it can be temporarily placed on the protrusion of the lower bracket, and even if the compressor is tilted in that state, both bolt mounting holes are always in the same position, so the work of installing the compressor is done in one step. It can be easily and quickly done by humans, greatly improving the installation workability.

Furthermore, since the weight of the compressor is supported by the protrusion, the diameter of the bolt can be reduced.

Furthermore, since the centering of the bolt mounting hole can be performed automatically, bolts can be installed even in small mounting holes.

As a result, the V-pulley alignment is less likely to go out of alignment after the compressor is installed, and the belt life is extended and troubles such as abnormal noise are reduced.

[Brief explanation of the drawings] Figure 1 is a cross-sectional view near the front end of the engine of a passenger car equipped with a car air conditioner compressor, Figure 2 is a front view showing a conventional compressor mounting structure, and Figure 3 is Figure 2. FIG. 4 is a partially enlarged sectional view of the compressor mounting part, FIGS. 5 to 8 show a compressor mounting structure according to an embodiment of the present invention, FIG. 5 is a front view, and FIG. 6 is a side view. Figure, 7th
The figure is a partially enlarged front view of the compressor mounting leg portion, and FIG. 8 is a sectional view taken along line AA in FIG. 7. 1...Engine, 2...Compressor, 2a. 2 b t 2 c...Mounting leg, 7...
・Lower bracket, 7a, 7b...protrusion, 10...bolt.

Claims (1)

[Scope of utility model registration request] In the case where the compressor is attached to the engine by fixing the upper and lower mounting legs of the compressor with bolts to a pair of upper and lower brackets fixed to the engine, the lower part of the lower mounting legs is shaped like a downwardly convex circular arc. A bolt mounting hole is provided at the center position of the shape, and a protrusion whose upper surface for mounting the lower mounting leg on the lower bracket follows the arc shape, and a center position of the arc shape of the upper surface of the protrusion above the same protrusion. A compressor mounting structure characterized by having bolt mounting holes.