JPS645703Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention mainly focuses on the mounting structure of a fan guard installed on an outdoor unit in a separate type air conditioner. This invention relates to a mounting structure for mounting a circular fan guard with a book stay.

(Prior Art) As a conventional mounting structure for this type of fan guard, the one described in, for example, Japanese Utility Model Application Publication No. 56-36067 is known, and as shown in FIG. The board 1 is placed at the outer circumferential position of the ventilation hole.
A plurality of support pieces a are formed by cutting and raising a part of the fan guard 2, and a mounting leg b extending outward is integrally formed at the tip of each stay 22 constituting the fan guard 2. By press-fitting the mounting legs b inward from the open side of each support piece a formed on the substrate 1, each support piece a fixes and supports each of the mounting legs b in a pinched manner.

(Problems to be Solved by the Invention) However, in the conventional fan guard mounting structure, the mounting legs b of each stay 21 are press-fitted into the support pieces a of the base plate 1 to be supported. The paint applied to the substrate 1 or the stay 22 may peel off, or due to processing errors in the support piece a and the mounting leg b, rattling may occur when the mounting leg b is attached to the support piece a. Furthermore, if a plurality of support pieces a are cut and raised on the mounting board 1, there is a risk of touching the support pieces a when performing installation work.

This invention was devised in view of the above-mentioned problems, and its purpose is to provide a good appearance without peeling off the paint applied to the mounting board, etc., and to provide a secure and easy installation without wobbling. The purpose of the present invention is to provide a mounting structure for a fan guard that is capable of providing safety and is also highly safe.

(Means for Solving the Problems) The configuration of the present invention is as shown in FIGS. 1 to 8.
In the mounting structure for mounting a circular fan guard 2 having a plurality of stays 22 extending radially, one of the stays 22
A is provided with a holding part 23 capable of holding the mounting screw 3, and the remaining stays 22b to 22f are bent in the circumferential direction with respect to the length direction of each of these stays 22b to 22f, and the tip is bent relative to the bent base. Mounting board 1
In addition to providing the engaging portions 24 that are inclined to the side, the mounting board 1 is provided with a plurality of elongated locking holes 1 corresponding to the remaining plurality of stays 22b to 22f.
2, and a screw hole 13 which corresponds to the one stay 22a and matches the holding part 23 at the pressing engagement position of each of the engaging parts 24 to each of the locking holes 12 is provided.

(Function) When attaching the fan guard 2 to the mounting board 1, each engaging portion 24 of each of the second stays 22b... is inserted into each locking hole 12 of the board 1, and the locking By rotating the engaging portions 24 in the circumferential direction within the range of the holes 12, the respective engaging portions 24 are aligned with the respective locking holes 12.
In this state, from the holding part 23 of the first stay 22a to the screw hole 13 of the substrate 1,
By screwing one mounting screw 3 into the fan guard 2, the fan guard 2 can be firmly fixed and supported on the mounting board 1 without wobbling.

(Example) The mounting structure of the fan guard according to the present invention will be described below with reference to an example shown in the drawings.

Fig. 3 shows an outdoor unit of a separate type air conditioner.A mounting board 1 having a ventilation hole 11 is attached to the upper end of a main body casing C in which a heat exchanger, a compressor, etc. are installed. A circular fan guard 2 is attached at a location opposite to the fan guard 11.

As shown in detail in FIG. 1, the fan guard 2 includes a spirally wound winding 21 and a stay 22.
and six first ones extending in the radial direction from the support plate 20 arranged at the center of the fan guard 2.
The sixth stays 22a to 22f are protruded at equal angles, and the winding 21 is integrally connected to the upper side of each stay 22a.

Of the stays 22 constituting the fan guard 2, one of the first stays 22a is folded inward at the tip end in the protruding direction to form a holding portion 23 for the mounting screw 3, and the remaining Second
An engaging portion 24 is integrally formed on the tip side of the sixth stays 22b...22f, which is bent perpendicularly toward the circumferential direction and whose bent tip is inclined toward the mounting board 1 side with respect to the bent base.

Further, as shown in detail in FIG. 2, the mounting board 1 includes the second to sixth stays 22b...22.
Five elongated locking holes 12 are formed corresponding to each of the engaging portions 24 of f, and the second to sixth
When each of the engaging portions 24 of the stays 22b...22f is pressed into the engaging position with each of the locking holes 12 of the base plate 1, one screw hole 13 corresponding to the holding portion 23 of the first stay 22a is inserted. Form.

In this way, the second to sixth stays 22b...2
Each engaging portion 24 formed in 2f is attached to the mounting board 1.
By inserting the engaging portions 24 into the respective locking holes 12 and rotating them in the circumferential direction, the respective engaging portions 24 are pressed into engagement with the edges of the respective locking holes 12. As shown in FIG.
The fan guard 2 is fixedly supported on the mounting board 1 by making the holding part 23 of the stay 22a and the screw hole 13 face each other and screwing the mounting screw 3 from the holding part 23 to the screw hole 13. Let it happen.

In forming the engaging portions 24 on the second and sixth stays 22b and 22f, which are located on both sides of the first stay 22a, among the stays 22 constituting the fan guard 2, As shown in FIG. 6, each of the engaging portions 24 is inclined at an angle of about 45 degrees toward the mounting board 1 with respect to the axis of each of the stays 22b, 22f.

In addition, the remaining third to fifth stays 22c...22
When forming the engaging portions 24 on the respective stays 22c...22e, as shown in FIGS. It is tilted approximately 25 degrees to the first side.

In this way, the second and sixth stays 22b, 22
The protrusion length L1 from the axis of f to the tip of each engaging portion 24 is the third to fifth stay 22c.
...The protrusion length from the axis of 22e to the tip of each engaging portion 24 is made larger than L2.

Therefore, the second to sixth stays 22b to 22
When inserting each engaging portion 24 of f into each locking hole 12 of the mounting board 1, the second and sixth stays 24
2b, 22f are first inserted into the locking hole 12 prior to the other stays 22c to 22e, and the second and sixth stays 22b, 22f are guided for insertion into the locking hole 12. As a result, the other stays 22c to 22e described above can be inserted, and the stays 22b to 22f can be inserted into the locking hole 12 more easily than when the same stays 22b to 22f are inserted into the locking hole 12 at the same time. It will become.

Moreover, by configuring as described above, when each of the stays 22 is engaged with the locking hole 12, each engagement portion 2 of the second and sixth stays 22b, 22f
4 comes into contact with the edge of each of the locking holes 12,
The respective engaging portions 24 of the third to fifth stays 22c...22e are connected to the respective locking holes 12 in the respective engaging portions 24.
While applying an elastic deformation force in the vertical direction by the edge portion, the material is press-fitted deep inside the edge portion,
Even if there is some processing error in each stay 22,
Each of the stays 22 is fixedly and firmly supported in each of the locking holes 12 without wobbling.

The present invention is constructed as described above, and when attaching the fan guard 2 to the mounting board 1, the second to sixth stays 22b...22
The fan guard 2 , and in this state, the first stay 2
The mounting screw 3 is screwed into the screw hole 13 of the board 1 from the holding part 23 of 2a, and thus the fan guard 2 has a connection between each of the engaging parts 24 and the edge part of the locking hole 12. It is fixedly supported by the mounting board 1 by engagement.

(Effect of the invention) As explained above, in the fan guard mounting structure according to the present invention, one of the stays 22a of the stays 22 constituting the fan guard 2 is provided with a holding part 23 capable of holding the mounting screw 3, Each of these stays 22 is attached to the remaining plurality of stays 22b to 22f.
b to 22f are provided with engaging portions 24 that are bent in the circumferential direction with respect to the length direction and whose tips are inclined toward the mounting board 1 side with respect to the bent base, and the remaining plurality of stays 22b are provided on the mounting board 1. The holding portion 23 corresponds to the plurality of long hole-shaped locking holes 12 corresponding to 22f and the one stay 22a, and the holding portion 23 corresponds to the one stay 22a.
Since the screw holes 13 that correspond to the screw holes 13 are provided, the engaging portions 24 formed on the remaining plurality of stays 22b to 22f are connected to the respective locking holes 12 of the mounting board 1.
The fan guard 2 is attached to the substrate 1 by a simple operation of inserting the fan guard 2 into the substrate 1, rotating it, and screwing one mounting screw 3 between the holding part 23 of the one stay 22a and the screw hole 13 of the substrate 1. It can be fixedly supported. In addition, when attaching the fan guard 2 to the mounting board 1, each of the engaging portions 2
4 is inserted and locked deep inside each of the locking holes 12, so that a good appearance can be achieved without peeling off the painted surface applied to the outer surface of the mounting board 1 as in the conventional case. and the engaging portion 24 is engaged with the locking hole 12 in a pressing manner,
By fixing the holding part 23 to the board 1 with the mounting screws 3 in this state, the fan guard 2
Since the fan guard 2 is fixedly supported on the substrate 1, the fan guard 2 can be securely and firmly attached to the substrate 1 without wobbling. Since there are no protruding pieces, the product not only has a good appearance, but also has excellent safety.

[Brief description of the drawings]

Fig. 1 is a partially omitted front view of a fan guard showing an embodiment of the present invention, Fig. 2 is a plan view of a mounting board,
Figure 3 is a perspective view of the outdoor unit with the fan guard attached, Figure 4 is a sectional view showing how the first stay is attached to the mounting board, and Figures 5 to 8 are the mounting board of the second stay... FIG. 9 is a cross-sectional view illustrating the state of attachment to the conventional example. 1... Mounting board, 11... Ventilation hole, 12... Locking hole, 13... Screw hole, 2... Fan guard, 2
2...Stay, 22a...First stay, 22b~
22f...2nd to 6th stay, 23...Holding part, 2
4...Engagement part.

Claims (1)

[Scope of utility model registration request] This is a mounting structure in which a circular fan guard 2 having a plurality of radially extending stays 22 is attached to a mounting board 1 having a ventilation hole 11.
One of the two stays 22a is provided with a holding part 23 capable of holding the mounting screw 3, and the remaining stays 22b to 22f are provided with a holding part 23 that can hold the mounting screw 3 in the circumferential direction with respect to the length direction of each of the remaining plurality of stays 22b to 22f. A plurality of long hole-shaped locking portions are provided on the mounting substrate 1, which are bent in a direction, and whose tips are inclined toward the mounting board 1 side with respect to the bent base, and a plurality of elongated hole-shaped locking portions are provided on the mounting board 1, corresponding to the remaining plurality of stays 22b to 22f. A hole 12 and a screw hole 13 corresponding to the one stay 22a and matching the holding part 23 at the press engagement position of each of the engaging parts 24 to each of the locking holes 12 are provided. Mounting structure of the fan guard.