JPH0612471Y2 - Desktop clean fan device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a clean air blower that creates a working environment in which clean air is required.

[Prior Art] Conventionally, in the semiconductor manufacturing process and biotechnology, there is a work that must be performed in clean air, and in many cases such a case is usually performed in a clean room. However, not only is it very expensive to make a large-scale device such as a clean room, but there are many inconveniences and waste such that the person involved in the work has to wear crisp and dust-free clothes.

In addition, equipment such as a clean room is too burdensome for small and medium-sized enterprises and individuals, and there are some things that require only a small area to be cleaned depending on the work. As shown in
Conventionally, the inside of the hood case 13 that is shielded from the outside air by a simple blower 10 is placed in a clean state.

Furthermore, there is a clean fan device in which a clean fan is hung on a large stand with a wire or the like so that the height and angle can be adjusted to some extent.

[Problems to be solved by the device]

However, in such a conventional clean air blower, even though the inside of the hood case 3 can be made highly clean, the hood case 3 is made to always maintain its shape, There is a problem that the height angle of the device cannot be changed. Further, since a large stand is used, there is a problem that the entire apparatus becomes large. Therefore, the present invention aims to solve such a problem.

[Means for Solving the Problems]

In order to solve the above problems, the present invention has a structure in which a stand is provided with a ratchet mechanism capable of changing the height and angle of a simple clean fan. It is the one that has no obstruction.

[Action]

According to the clean air blower having such a configuration, the height angle of the air blower can be freely changed by using the ratchet mechanism at the joint portion in order to change the height and angle of the predetermined area for supplying clean air. The work area can be set as required.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings. First
The figure is a side view of the clean stand according to the present invention. In the figure, the lower ratchet 1, the upper ratchet 2, the main body mounting pipe 3, the lower pipe 4, the stand pipe 5, the joint pipe 6, and the net 7 are formed, and the height is increased. In both the case of changing the angle and the case of changing the angle, it is possible to freely select by changing the angle of both the lower ratchet 1 and the upper ratchet 2, that is, the angle indicated by arrow a in the figure and the height change indicated by arrow b. Can be adjusted.

Further, as shown in the side view of FIG. 2, the installation of the net 7 allows a clean air flow to pass through the net as indicated by an arrow c, so that the flow is less obstructed and turbulent flow is less likely to occur in a clean area. Is obtained.

Further, by providing the clean area display line 7'in the net, the clean area can be made clearer and the working range can be easily secured.

In addition, in order to reduce the number of man-hours at the time of processing and to reduce the production unit price, it is possible to process the same size, that is, as shown in the plan views of FIGS. ) And lower pipe 4 (B), left and right D view of stand pipe 5, left and right of joint pipe 6 (C) and left and right of lower ratchet 1 and upper ratchet 2 of FIG. A mesh 7 is attached to the upper surface 4 ′ of 4.

In the above embodiment, the pipe has a round tubular shape, but the pipe may have a square sectional shape, an elliptical sectional shape, a triangular sectional shape, etc., in addition to the circular sectional shape.

[Effect of device]

As described above, according to the present invention, it is possible to freely create a clean area as necessary in height and angle and perform work in a desired clean state.

In addition, by creating a clean state without using a conventional hood case, it is possible to freely perform work without being disturbed by the hood case.

In addition, the air blown from the main unit due to the net effect improves the cleanliness without turbulent flow due to direct rebound to the workbench, and the clean area of the clean work is clearly displayed to ensure the work range. You can

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention, FIG. 2 is a side view of an improved embodiment of the present invention, and FIGS. 3 (A) (B) (C) (D) are pipes according to the present invention. FIG. 4 is a plan view of the shape, FIG. 4 is a plan view of the present invention, and FIG. 5 is a perspective view of a conventional simple clean stand. 1 …… Lower ratchet 2 …… Upper ratchet 3 …… Main body mounting pipe 4 …… Lower pipe 4 ′ …… Upper surface 5 …… Stand pipe 6 …… Joint pipe 7 …… Mesh 7 ′ …… Display line 9 …… Simple Clean fan 10 …… Simple blower 13 …… Food case

Claims (2)

[Scope of utility model registration request] 1. A desk-top clean fan device capable of freely moving by supplying clean air locally, at least two ratchet mechanisms are provided on a stand to be fixed, and a member for connecting the at least two ratchet mechanisms is provided. A desktop clean fan device characterized by the ability to adjust the angle and height of a simple clean fan. 2. The desk-top clean fan device according to claim 1, wherein a flat net is provided below the stand to which clean air is supplied.