JPH04287879A - Compact air compressor - Google Patents

Abstract

PURPOSE:To increase the capacity of an air tank while suppressing the volume of the whole compressor by providing the drum part of the air tank with an interference avoiding part formed at an interference part among a compressor body, plural operation control apparatus and the air tank. CONSTITUTION:A motor 1 and an air tank 2 are disposed parallel as closely as possible, and a compressor body 3 and operation control equipment 4 are provided being inclined as much as possible toward the air tank 2 side from the body case 1a side of the motor 1. The drum part 10 of the air tank 2 is provided with an interference avoiding part 11 formed to avoid the interference between the air tank 2 and the compressor body 3 and operation control equipment 4, and between an air tank safety valve 14 and the case. The capacity of the air tank can be thereby enlarged while suppressing the volume of the whole compressor to a minimum.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small air compressor, and more particularly to a small air compressor that is small, lightweight, and highly portable.

0002

2. Description of the Related Art Conventional small air compressors have generally been constructed as shown in FIGS. 3 and 4. In both figures, 1
2 is a motor, and 2 is an air tank, both of which are arranged in parallel and close to each other. On one longitudinal side of the main body case 1a of the motor 1 is a compressor main body 3, especially its cylinder.
The cylinder head portion 3a is coupled to the air tank 2 side as inclined as possible, and the operation control equipment 4 is similarly coupled to the other side as inclined as possible to the air tank 2 side. . Note that 5 is a fan connected to the rotating shaft of the motor 1, and 6 is a support leg provided with the main body case 1a of the motor 1 and the air tank 2. The entire compressor is covered by a case 7, and is arranged so that the entire volume of the case 7 is minimized without interfering with each other.

0003

[Problems to be Solved by the Invention] In such a compact air compressor, if the volume of the air tank 2 is increased, that is, the body diameter of the air tank 2 is increased, the air tank 2 and the compressor Interference with the cylinder/cylinder head portion 3a of the main body 3 and the operation control device 4 must be avoided, and the cylinder/cylinder head 3a of the compressor main body 3 and the operation control device 4 must be arranged in a vertical direction.
That is, it has no choice but to move in the direction A in FIG. For this reason, the overall height of the compressor increases and its volume increases, causing problems in portability and handling.

An object of the present invention is to increase the volume of the air tank while minimizing the overall volume of the compressor.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the present invention has the following configuration. That is, in a small air compressor in which a motor and an air tank are arranged close to each other in parallel, and a compressor main body and an operation control device are provided in a main body case of the motor so as to be inclined toward the air tank, the air The structure is characterized in that an interference avoidance part for avoiding interference with the compressor main body and operation control equipment is partially provided in the body of the tank.

[0006]

[Operation] With the above-described configuration, the present invention prevents interference between the compressor main body and operation control equipment and the air tank even if the diameter of the air tank is increased in order to increase the volume of the air tank. Since the interference avoidance part to be avoided is formed in the body of the air tank along its longitudinal direction, there is no need to move the compressor main body and operation control equipment from their conventional positions. Therefore, the capacity of the air tank can be increased while keeping the overall volume of the compressor to a minimum.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In the following figures, the same members as those shown in FIGS. 3 and 4 described above are designated by the same reference numerals, and their explanations will be omitted.

In this embodiment, the internal volume of the air tank 2 is set large enough that it does not come into contact with the case 7. As a result, the radial center of the air tank 2 is slightly moved to the outside and upper side of the case 6 compared to the conventional position. Note that the length of the air tank 2 in the longitudinal direction remains the same as before. However, an interference avoidance part 11 is formed in the body part 10 of the air tank 2 as a lever to avoid interference with the compressor main body 3 and the operation control equipment 4. The interference avoidance part 11 formed in the body part 10 of this air tank 2 is
A recess 1 formed by recessing 0 diagonally in the direction of one chord.
2, a flat part located in the middle of a recess in the chord direction similar to the recess 12, and a recess 13 formed by a recess in the chord direction different from the recess 12. The recessed portion 12 mainly corresponds to the cylinder/cylinder head portion 3a of the compressor main body 3, and the recessed portion 13 corresponds to the operation control device 4.
This is formed to avoid interference between the safety valve 14 installed upright in the air tank 2 and the case 6. The degree of inclination of the compressor body 3 and the operation control device 4 toward the air tank 2 and the position of the safety valve are set as before.

[0009] Here, if the safety valve 14 is installed at a position that is offset by about 45 degrees in the circumferential direction from directly above the air tank 2 and extends in the radial direction, the recess 13 can be omitted.

Therefore, even if the diameter of the air tank 2 is increased in order to increase the internal volume of the air tank 2, an interference avoidance part is required to avoid interference between the compressor main body 3 and the operation control equipment 4 and the air tank 2. 7 is formed in the body of the air tank 2 along its longitudinal direction, so there is no need to move the compressor main body 3 and the operation control device 4 from their conventional positions. Thereby, the capacity of the air tank 2 can be increased while keeping the volume of the entire compressor to a minimum.

[0011]

Effects of the Invention As is clear from the above explanation, since the interference avoidance part for avoiding interference between the air tank and the compressor main body and operation control equipment is formed in the body of the air tank, Since the body diameter of the air tank can be increased while keeping the volume to a minimum, that is, the capacity of the air tank can be increased, the range of use can be expanded while the size remains small.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a small air compressor according to the present invention.

FIG. 2 is a side view of the small air compressor shown in FIG. 1.

FIG. 3 is a plan view of a conventional small air compressor.

FIG. 4 is a side view of the small air compressor shown in FIG. 3.

[Explanation of symbols]

1 Motor 1a Main case 2 Air tank 3 Compressor main body 3a　Cylinder/cylinder head part 4 Operation control equipment 7 Case 10 Body part 11 Interference avoidance section 12 Recess 13 Recess

Claims (1)

[Claims] 1. A small air compressor in which a motor and an air tank are arranged close to each other in parallel, and a compressor main body and an operation control device are provided in a main body case of the motor so as to be inclined toward the air tank. A small air compressor, characterized in that an interference avoidance part for avoiding interference with the compressor main body and operation control equipment is partially provided in the body part of the air tank.