JPS6141999Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in the finger guard mounting structure of a small fan.

In recent years, as electronic devices have become smaller and more sophisticated, there has been a trend toward using a large number of small fans in order to prevent temperature rises and improve reliability and extend the lifespan of devices.

In this situation, consideration must be given to reducing the number of parts and machining man-hours in order to improve work efficiency during installation and removal, and to reduce the cost of the fan itself.

Conventional finger guards typically have a structure as shown in FIGS. 1A and 1B.

FIG. 1A is a perspective view showing a state in which a finger guard is attached to a fan, and FIG. 1B is an enlarged view of the attachment portion.

In relation to diagrams A and B, 1 is fan and 2
It has a structure in which the tips of the four legs 4 of the finger guard 3 are fixed to the outside of the fan 1 into the mounting holes 5 at the four corners of the mounting frame 2 with screws 6. It's summery. The screw 6 is tightened and fixed with a nut 8 using washers 7, 7' between them.

In the above conventional structure, mounting holes 5 at the four corners of the mounting frame 2 must be provided in order to install the screws 6, and washers 7,
7' and nuts 8 are required for each mounting part, and the work for mounting and dismounting is difficult, requiring a lot of work when replacing or cleaning, and a large number of parts such as screws, washers, nuts, etc. are also prepared. The problem was that it was extremely inefficient and uneconomical.

The present invention has been devised in view of the above problems, and its purpose is to provide an economical finger guard structure that is easy to install and remove.

This purpose is to construct a finger guard made of a wire rod having spring properties and provided on a rectangular mounting frame holding a fan, and to configure the leg part of the finger guard into a U-shape, and to form a U-shape. The tips of the legs are bent so as to engage with the opposite side of the rectangular mounting frame with the upper surface side of the corner of the rectangular mounting frame as a reference point, and the center part of the finger guard is bent to engage with the opposite side of the rectangular mounting frame. This is achieved by a finger guard characterized by being configured to have a convex shape as a fulcrum.

An embodiment of the present invention will be described below with reference to the drawings.

FIGS. 2A and 2B are perspective views showing the attached state of the finger guard of the present invention and an enlarged perspective view of the attachment part. It is engaged with the opposite side of the frame 2 and fixed at the four corners of the mounting frame using the spring force of the finger guard wire.

That is, the mounting frame 2 with the finger guard
A spring force acts on the surface of the mounting frame 2 to push the mounting frame surface and the finger guard against each other, so that the U-shaped leg 4 engages with the opposite surface of the mounting frame 2.

When attaching or detaching the finger guard 3 according to the shape described above, the spring properties of the legs 4 are used to open the legs and fit them into the four corners of the mounting frame 2.

The finger guard 3 fitted in this manner is fixed to the frame 2 by its sling property.

When removing the finger guard 3, use a large force due to the spring force engaged on the opposite side.
Expand the legs 4 outward by pressing the center part of the
It is removed using a removal jig 9 (such as a rod-shaped jig whose tip is bent into an inclined shape 10) as shown in FIG.

As explained above, with the structure of the finger guard according to the present invention, when installing or removing the finger guard, there is no need to fix each of the four corners with screws as in the conventional case, and the tips of the legs are attached to the mounting frame. By making it possible to easily fix the product by fitting it into the product, the number of steps required for mounting and dismounting is greatly reduced, eliminating the need for screws, nuts, and washers, and eliminating the need to process threaded holes. As a result, processing costs can be reduced, and the effect is extremely large.

[Brief explanation of the drawing]

FIG. 1A is a perspective view showing the structure of a conventional finger guard, FIG. 1B is an enlarged view of the attachment part in FIG. 1A, and FIG. Figure B is an enlarged view of the attachment part in Figure 2A, Figure 3A is a side view for explaining the installation and removal of the finger guard of the present invention, and Figure 3B is a side view of the removal jig. . In the figure, 1...Fan, 2...Mounting frame, 3
...Finger guard, 4...Guard leg, 5...
...Mounting hole, 6...Screw (screw), 7, 7'...Washer, 8...Nut, 9...Removal jig, 10...
...Magabe.

Claims (1)

[Scope of utility model registration request] In a finger guard that is provided on a rectangular mounting frame that holds a fan and is made of a wire material that has sprig properties, the leg portion of the finger guard is configured in a U-shape, and the tip of the U-shaped leg portion is It is bent so as to engage with the opposite side of the rectangular mounting frame using the upper surface side of the corner of the rectangular mounting frame as a reference point, and furthermore, the center part of the finger guard has a convex shape with the reference point as a fulcrum. A finger guard characterized by being configured as follows.