JP2000073952A - Door opening device for package type fluid machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door opening device for a package type fluid machine in which an opening door is opened to such a degree that a finger can be inserted when a fixing metal of the opening door is released for facilitating opening/closing it. SOLUTION: When an opening door is closed by a fixing metal, at least either of the opening door and a member on the side facing the opening door to be closed generates elastic deformation by a protruded part 8. When the fixing metal is released, the opening door is opened to such a degree that a finger can be inserted by utilizing returning force of elastic deformation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening device for a packaged fluid machine, and more particularly to at least one of a door and a member which is closed to face the door when the door is closed with a fixing bracket. The present invention relates to a door opening device for a package type fluid machine, wherein an opening / closing door is opened by utilizing a force of returning elastic deformation when a fixing bracket is released by generating elastic deformation of one of them. Things.

[0002]

2. Description of the Related Art An opening / closing door of a packaged fluid machine is usually provided to open the door during maintenance.
This opening / closing door uses a fixing metal so that the door is not easily opened when tightened, and the door is closed without a gap to have a soundproofing effect or the like. Therefore, when opening the door during maintenance, the fixing metal is first removed, and then the door is opened. However, since the ceiling door is particularly lifted up and opened among the doors,
It was hard to lift when there was no place for the finger to hang over part of the ceiling door. For this reason, a handle is attached to at least one of the front, side, and upper surfaces of the ceiling door so that fingers may be applied to the ceiling door, or a handle may be attached to a part of the ceiling door or a part of a member facing the ceiling door. A cut-out structure was formed to allow access. In addition, the ceiling door was made larger so that it protruded from the front than the front door, and the protruding part was configured so that a hand would be required. Also, the ceiling door,
A configuration that automatically lifted and opened with compressed air was also used.

[0003]

The structure in which the opening / closing door is automatically lifted and opened with compressed air complicates the package structure and causes an increase in manufacturing cost. Further, in the configuration of the handle, cutout, and protrusion provided on the package, there is a problem in terms of transportation and installation due to a problem that processing and mounting are difficult and an increase in the outer dimensions of the package. Therefore, the present invention provides an elastic deformation when the fixing bracket is released without opening the opening / closing door at the time of maintenance and without providing any means of lifting, cutting, and popping out of the means for lifting with compressed air or a place visible from the exterior of the package. An object of the present invention is to provide a door opening device of a package type fluid machine in which an opening / closing door is opened using a force returning to the original state.

[0004]

According to the present invention, a fluid machine and its driving source are housed in a package comprising a fixed wall and an opening / closing door, and at least one of the opening / closing doors can be freely opened and closed by a fixing bracket. In the package type fluid machine attached to the above, when the opening / closing door is closed with a fixture, at least one of the opening / closing door and a member on the side closed to face the opening / closing door is elastically deformed. As means for causing the elastic deformation, a projection is formed on at least one of the inside of the opening and closing door and at least one of the members that are closed to face the inside of the opening and closing door.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 shows a package-type fluid machine in which a compressor such as reciprocating, rotating, scrolling or the like and a vacuum pump including a scroll and a motor or an engine (not shown) as a driving source thereof are arranged in a package 1. Thus, the package may be fixed or wheeled and portable. The package 1 includes a fixed wall and a door. A front panel 3A, a right side panel 3B, a left side panel 3C, a top panel 3D,
A rear panel 3E is attached, and a duct panel (not shown) is provided for the purpose of introducing and discharging cooling air as necessary.
Is attached. A fluid machine (not shown) such as an air compressor and a vacuum pump, and a motor and an engine (not shown) as its driving source are arranged in the package 1 surrounded by the panels. Here, the front panel 3
A is a front door, a right side panel 3B is a right side door, a left side panel 3C is a left side door, a top panel 3D is a ceiling door, a rear panel 3E is a rear door, and a duct panel is replaced with a duct door. . Each door is formed in a rectangular shape, and as shown in FIG. 2, the periphery of each door is bent twice inward at a right angle, and the bent portion is
It has a U-shaped cross section 4. Also, on the inner surface of each door,
A sound absorbing material 5 such as a foamed resin is stuck to achieve a noise reduction effect.

Now, the opening and closing of the ceiling door 3D will be described as an example. The ceiling door 3D includes a front door 3A and a right side door 3D.
B, the left side door 3C, and the rear door 3E are placed so as to cover the respective upper surfaces. The back side of the ceiling door 3E is openably and closably attached to the back door 3E and a hinge 6, and the hinge door 6 is used to open and close the ceiling door 3D. Above the left and right side surfaces of the ceiling door 3D and the left and right side doors 3B and 3C, fixing brackets 7 (for example, product name catch clips) for fixing when the ceiling door 3D is closed are provided. Now, a projection 8 is formed on at least one of the upper surface of the rear door 3E, the upper surfaces of the left and right side doors 3B and 3C, or the lower surface of the ceiling door 3D by attaching screws (small screws). Ceiling door 3
When D is closed and fixed with the fixing bracket 7, the protrusion 8
Abuts against the member on the side to be closed facing the projection 8;
This member is elastically deformed.

Next, when the fixing bracket 7 is removed, the protrusion 8
A force to return to the member on the side that is closed and elastically deformed, that is, the lower surface of the ceiling door 3D acts,
The state where the ceiling door 3D opens from the fulcrum, that is, the hinge 6, toward the front door 3A is maintained. Accordingly, a gap 9 is formed between the upper surface of the front door 3A and the lower surface of the ceiling door 3D on the side of the front door 3A so that a finger can enter. To fasten and fix the ceiling door 3D from this state, push the ceiling door 3D downward and fix
And fix it with. At this time, the lower surface of the ceiling door 3D, which is in contact with the head of the screw serving as the projection 8, does not undergo plastic deformation, but stays within the range of elastic deformation. Next, when the ceiling door 3D is opened and maintenance is performed, when the fixing metal 7 is released, the pressing force by the fixing metal 7 is released. A gap 9 is provided to allow a finger to enter the front of the ceiling door 3D by applying a force for returning elastic deformation to the lower surface of the deformed ceiling door 3D or the upper surface of the rear door 3E or the left and right side doors 3B and 3C. , The ceiling door 3D can be easily lifted and opened by putting a finger there. Projection 8
Although a screw is used as the material, a projection 8 formed by pressing or the like is provided on one of the members corresponding to the lower surface of the ceiling door 3D or the lower surface of the ceiling door 3D when the ceiling door 3D is closed. The same operation and effect can be obtained.

[0010] In the next embodiment shown in FIG. 4, a U is attached to the lower surface of the ceiling door 3 D at a position corresponding to the head of the screw as the projection 8.
When the U-shaped notch groove 31D is formed and the ceiling door 3D is closed, a protrusion 8 is formed on a part of the U-shaped notch groove 31D on the lower surface of the ceiling door 3D or on the upper surface of the rear door 3E or the left and right side doors 3B and 3C. The structure has a structure in which the head of the screw provided as abuts. Note that the mounting positional relationship between the U-shaped notch groove 31D and the head of the screw as the projection 8 may be reversed. Further, the shape of the notch groove 31D that performs elastic deformation is not limited to the U-shape. With the above configuration, when the ceiling door 3D is closed with the fixing bracket 7, the head of the screw as the projection 8 hits a part of the U-shaped notch groove 31D and closes.
At this time, the U-shaped cutout groove 31D is formed within the range of elastic deformation, not plastic deformation. Therefore, when the fixture 7 is released at the time of maintenance, a force to return to the original shape is exerted on the U-shaped notch groove 31D which has been elastically deformed, so that the ceiling door 3D opens from the fulcrum, that is, the hinge 6, toward the front door 3A. A gap 9 is formed between the upper surface of the front door 3A and the lower surface of the ceiling door 3D on the side of the front door 3A so that a finger can enter.

The embodiment has been described by taking the ceiling door 3D as an example.
The present invention can be applied to an opening / closing door other than the ceiling door 3D. Further, the present invention can be applied even if the opening / closing door has a single opening configuration or a double opening configuration. The present invention, when the door is closed,
This utilizes the elastic deformation of a member facing the projection, and is achieved by forming the projection at a desired position corresponding to the member to be elastically deformed.

[0010]

In the means for opening the lid of the package type fluid machine with the fingers, when the fixing bracket is released by utilizing the elastic deformation of the member facing the projection without separately forming a catch portion of the finger, The opening and closing door can be opened using the force to return to the elastic deformation, so that a gap can be created in which fingers can enter, without using compressed air such as an air cylinder or a separate coil spring. The goal can be achieved with the minimum number of components.

The projection can be achieved by a simple means of attaching a screw. Further, even when the door is formed by pressing without attaching a separate member called a screw, the same effect can be produced by forming the projection at the same time. In the configuration of the projection by this press,
There is no increase in man-hours or the number of parts because it can be performed in the same press process. Further, the structure according to the present invention does not appear at all on the exterior of the package when the door is closed, so that the design can be simplified. Further, there is no part such as a handle protruding outward from the door, and the problem of transport installation can be solved.

[0012]

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an arrangement of doors in a package according to the present invention.

FIG. 2 is an explanatory diagram when the ceiling door of the present invention in FIG. 1 is opened.

FIG. 3 is an enlarged explanatory view of a protrusion of the present invention in FIG. 1;

FIG. 4 is an enlarged explanatory view of a protrusion and a cutout groove of the present invention in FIG. 1;

[Explanation of symbols]

 3D ceiling door 6 Hinge 7 Fixing bracket 8 Protrusion 9 Gap enough for fingers 31D Notch groove

Claims (2)

[Claims] A package in which a fluid machine and its driving source are housed in a package comprising a fixed wall and an opening / closing door, and at least one of the opening / closing doors is mounted to be freely opened and closed by a fixing bracket. In a hydraulic fluid machine, when the opening / closing door is closed with a fixing bracket, at least one of the opening / closing door and a member facing the opening / closing door is elastically deformed, and when the fixing bracket is released, the elastic deformation is caused. A door opening device for a packaged fluid machine, wherein the opening / closing door is opened using a force returning to the door. The elastic deformation is caused by a projection formed on at least one of the inside of the door and a member that is closed to face the inside of the door when the door is opened and closed by a fixing bracket. 2. The door opening device for a package type fluid machine according to claim 1, wherein the door opening device is formed on a member on a door or a side to be closed.