JPS6126826Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field and Conventional Problems) The present invention relates to an insulating frame that is used by being attached to a base frame at a location where a ventilation fan is installed.

2. Description of the Related Art Conventional insulating frames of this kind are known to have a frame body formed integrally or a frame body formed by connecting frame pieces. However, since the sizes of ventilation fans are standardized in many different sizes, it is necessary to use insulating frames of appropriate sizes for each type, and it is necessary to prepare a variety of sizes.

(Purpose of the invention) Therefore, the present invention provides an apparatus in which the size of the frame can be changed to an appropriate standard size using connecting pieces.

(Embodiments) Hereinafter, illustrated embodiments of the present invention will be described.
In this example shown in FIG. 1, numeral 1 is a plastic L-shaped frame piece having bent corners, and is shaped so that when four frame pieces 1 are connected, a square frame body is formed. The frame piece 1 has an engaging protrusion 1a at the bent end.
is provided protrudingly, and an engagement hole 1c is provided at the end of the other side frame by a holding piece 1b formed by bending both sides.
is formed (see Figure 2). Further, an inner circumferential wall piece 1d that projects rearward is connected to the inner circumferential portion of the L-shaped frame piece 1. Incidentally, screw mounting holes may be formed in the inner circumferential wall piece 1d. Reference numeral 2 designates a connecting piece having an engaging protrusion 2a protruding from one end thereof and an engaging hole 2b opened at the other end (see FIGS. 3 and 4).

Further, an inner circumferential wall piece 2c that protrudes rearward is connected to one side of the connecting piece 2. The engaging protrusions 1a, 2a of the L-shaped frame piece 1 and the connecting piece 2, and the engaging holes 1c, 2b.
have the same structure.

Then, the engaging protrusion 1a is inserted into the adjacent engaging hole 1c, and the four L-shaped frame pieces 1 are connected to form a square insulating frame. If you want to make it larger, insert a connecting piece 2 into the engaging hole 1c of each L-shaped frame piece 1 as shown in FIG.
After the connecting pieces 2 are joined by inserting the engaging protrusions 2a, the engaging protrusions 1a of each L-shaped frame piece 1 may be inserted into the engaging holes 2b of the connecting pieces 2. This makes each side of the frame longer by the length of the connecting piece 2, making the insulating frame larger.

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Therefore, it is sufficient to connect a predetermined number of connecting pieces 2 to each side frame so that the frame body has a required size. In the embodiment shown in Fig. 1, two connecting pieces 2 are attached to each side frame.

In this way, according to this example, an insulating frame of the required standard size can be formed by joining the connecting pieces 2, and there is no need to provide frames of various sizes as in the past. There isn't.

Furthermore, since the frame pieces of this example are L-shaped, the number of connections is reduced, making them easier to handle.

Note that a rectangular frame can also be formed by changing the number of connecting pieces connected to each side frame.

(Structure of the invention) Although this example is structured as described above, the invention is not limited to this. For example, the shape of each frame piece does not matter, and the corner frame and side frame may be separable. Further, the number of connecting pieces to be joined is appropriate. Further, the structure of the engaging portions formed at both ends of the frame piece and the connecting piece is not limited, and may be formed of a protrusion and a fitting hole as shown in FIG. 5, for example.

In short, the present invention is a frame piece formed by forming an engaging part at one end and an engaging part that engages with the engaging part at the other end, which are engaged with each other to form a rectangular frame. In this method, an engaging portion capable of engaging with an engaging portion at one end of the frame piece is formed at one end, and an engaging portion capable of engaging with an engaging portion at the other end of the frame piece is formed at the other end. An insulating frame for a ventilation fan, comprising connecting pieces of a predetermined length, which can be formed into an appropriate standard size by engaging and splicing an appropriate number of connecting pieces with frame pieces. be.

(Effects of the invention) Therefore, according to the invention, an insulating frame of the required standard size can be formed by joining the connecting pieces, which is a great effect, and since only one type of frame piece is required, the cost is low. At the same time, there are also advantages in that inventory management becomes easy and only one type of frame piece and connecting piece need to be carried at all times during use.

[Brief explanation of the drawing]

Figure 1 is a front view showing one embodiment of the present invention;
3 is a perspective view from the front showing an example of the connection piece; FIG. 4 is a perspective view from the rear of the connection piece; FIG. 5 is a longitudinal cross-sectional view of a main part showing another example of the engaging portion. 1: Frame piece, 1a, 1c: Engagement part, 2: Connection piece,
2a, 2b: engaging portions. 〓〓〓〓

Claims (1)

[Claims for Utility Model Registration] (1) Frame pieces each having an engaging portion formed at one end and an engaging portion that engages with the engaging portion formed at the other end are shaped like squares that are engaged with each other. In the frame body, an engaging part that can be engaged with the engaging part at one end of the frame piece is formed at one end, and an engaging part that can be engaged with the engaging part at the other end of the frame piece is formed at the other end. It is characterized by comprising a connecting piece of a predetermined length formed at the end, and can be formed into an appropriate standard size by engaging and splicing an appropriate number of connecting pieces with a frame piece. Insulating frame for ventilation fan. (2) The insulating frame for a ventilation fan according to claim 1, in which each frame piece is L-shaped including the corners.