JP3284467B2 - Air outlet suction device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air outlet / suction device having a wind direction adjusting function, which is used for an indoor air outlet and an outdoor air inlet of an air conditioner or the like.

[0002]

2. Description of the Related Art As a conventional air outlet / inlet device, for example, a universal grill type is known. In this configuration, blades are attached to a frame body in parallel in a vertical direction and a horizontal direction with a rotating shaft, and each blade is rotated to change a wind direction.

[0003] In this type of air blow-in / suction-out device, the structure of attaching the blade to the frame is as follows.

(1) A structure in which a rotating shaft of a blade is attached to a silk pin fixed to a side plate portion of a frame to apply a load suitable for the rotating shaft to the rotating shaft.

(2) The rotation axis of the blade is attached to the side plate of the frame body.
By attaching with pier spice and tapping screw,
A structure that applies a load suitable for the rotation to the rotating shaft.

(3) Insert the rotary shaft of the blade into the hole of the side plate of the frame, pass the piano wire through the hole provided at the tip of the rotary shaft protruding from the side plate, and push the piano wire from above onto the tip. A structure in which a load suitable for the rotation is applied to the rotating shaft by attaching a nut.

[0007]

However, in the conventional air blowing / suction device, as described above, the silk pin,
Since a structure is used in which components such as piercing screws, tapping screws, piano wires, push nuts and the like are used to apply a load suitable for rotating the blades, there is a problem that the material cost is increased by using the components.

In addition, the use of the above-mentioned parts causes a problem that the number of assembling steps is increased and the manufacturing cost is increased.

The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide an air blowing / suction apparatus capable of reducing material costs and manufacturing costs.

[0010]

According to the present invention, there is provided an air outlet / inlet apparatus provided with a blade having a blade main body, a rotary shaft thereof, and a hole having both ends of the rotary shaft provided in side plate portions. An air blowing and suction port device comprising a frame body inserted and attached to the rotating shaft and the root body,
In each case, one rectangular metal plate is divided into two at the middle part in the longitudinal direction.
The folded part is a cylindrical body part and the folded part is a plate body part . When both ends in the width direction of the plate part are removed,
The cylindrical body with slits and the narrow plate
The diameter of the hole in the side plate portion of the frame body is the width of the plate body portion.
Slit by spring back when both ends are removed
Is open and the diameter of the cylindrical body with the slit
It is characterized by being slightly smaller than the diameter .

[0011]

According to the present invention, the cylindrical body serving as the rotation axis of the blade is formed by folding a single rectangular metal plate into two at the middle part in the longitudinal direction, and forming the bent part into the cylindrical body part and the folded part into the cylindrical part. It is a plate body portion, and since it is a portion left after removing both end portions in the width direction of the plate body portion, it is a cylindrical body with a slit, and it occurs when both end portions of the plate body portion are removed. Due to springback, the slit is opened and the diameter is increased.

The diameter of the cylindrical portion having the slit , that is, the diameter of the rotating shaft is slightly larger than the diameter of the hole in the side plate portion of the frame.
Because there, when plugged it into the hole, slit width decreases by elastic deformation, to the inner peripheral surface and the elastic contact hole.

As a result, when the blade is rotated, friction occurs between the rotation shaft and the hole, and this exerts a load on the rotation of the blade. The blade is set at an arbitrary angle by this load.

[0014]

Embodiments of the present invention will be described below with reference to embodiments.

[0015]

FIG. 1 is a front view of an air outlet / suction device according to an embodiment, and FIG. 2 is an enlarged cross-sectional view taken along line AA of FIG.

In the figure, W is a frame, and F is a blade attached to a side plate 4 of the frame W so as to be rotatable about a rotating shaft 2.
Attachment of the blade F is performed by attaching both ends of the rotating shaft 2 to the side plate portion 4.
This is done by inserting it into a hole 5 which will be described later.

The blades F are composed of vertical blades arranged in the horizontal direction and horizontal blades arranged in the vertical direction. When viewed from the front, the vertical blades are arranged on the outside and the horizontal blades are arranged on the inside.

The air outlet / inlet apparatus S of the embodiment comprises the above-mentioned frame W and blades F. D is a duct attached to the air outlet / inlet device S with a screw n.

The blade F, as shown in FIG. 2, is composed of a blade main body 1 and a rotary shaft 2 integrated therewith, and is manufactured as follows.

(1) One rectangular stainless steel plate a shown in FIG. 3 is folded in two at the middle part m in the width direction as shown in FIGS. At this time, the bent portion is formed in a cylindrical shape to be a cylindrical body portion t, and the folded portion is a two-layer plate body portion p.

(2) Both ends b, c of the plate body portion p are formed by bending one end b and covering the other end c, and caulking the both ends.

(3) Both end portions of the plate portion p are obliquely cut along cut lines BB and CC in FIG. 4 and removed, and as shown in FIG. 6, the remaining cylindrical portion t is removed. The rotating shaft 2 is used, and the remaining plate portion p is used as the blade main body 1.

Since the rotating shaft 2 formed in this manner is obtained by cutting and removing both ends of the plate portion p, as shown in FIG. 7, it is a cylindrical body having a slit 3 therein. In addition, the slit 3 is opened by the spring back that occurs when cutting and removing, and the outer diameter is increased. In this embodiment, it is 0.4 mm larger than before cutting and removing.
It is 4 mm. Therefore, when the open ends 2a and 2b along the slit 3 are pushed from both sides, the diameter is reduced due to elastic deformation. The length of both ends (projections) of the rotating shaft 2 is 4.0
mm.

FIG. 7 shows an open end 2 along the slit 3 of the rotating shaft 2 by cutting and removing both ends of the plate portion p.
a and 2b show the state opened by springback. The degree of opening is clear by comparing with FIG. 5 before cutting and removing.

FIG. 8 shows a hole 5 provided in the side plate portion 4 of the frame W into which both ends of the rotary shaft 2 are inserted. This hole 5
Is a 3.9 mm long cylindrical hole provided by bar link processing. The inner diameter is 4.2 mm on the insertion side and 4.
1 mm.

Since the air outlet / inlet apparatus S of the embodiment has the above-described configuration, when the rotary shaft 2 is inserted into the hole 5 of the side plate portion 4 of the frame W, the rotary shaft 2 is elastically deformed. As a result, the diameter of the hole 5 is reduced, and the elastic force at that time makes elastic contact with the inner peripheral surface of the hole 5.

For this reason, friction occurs between the rotary shaft 2 and the hole 5 when the rotary shaft 2 rotates, which exerts a load on the rotation of the blade F. Therefore, according to this embodiment, it is possible to arbitrarily change the set angle of the blade F by using this load and adjust the wind direction of the blown air.

[0028]

As described above, according to the present invention, since the rotary shaft of the blade is formed by utilizing the spring back generated when processing a single metal plate, the conventionally used shaft mounting It is not necessary to use parts for the use, and material cost can be reduced. In addition, since it is not necessary to perform the assembling work of the parts which has been conventionally performed, the number of assembling steps is reduced, and the manufacturing cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view of an air outlet / suction device of an embodiment.

FIG. 2 is an enlarged cross-sectional view taken along line AA of FIG. 1;

FIG. 3 is a plan view of a stainless steel plate used for manufacturing the blade of the embodiment.

FIG. 4 is a side view of an intermediate member obtained by bending the stainless steel plate of FIG. 3;

FIG. 5 is an enlarged side view of the intermediate member of FIG. 4;

6 is a side view of the blade of the embodiment obtained by cutting and removing a part of the intermediate member of FIG. 4;

FIG. 7 is an enlarged side view of the blade of FIG. 6;

8 is a cross-sectional view of a hole into which the rotation shaft of the blade of FIG. 6 is inserted.

[Explanation of symbols]

 S Air blow-in / suction device W Frame body F Blade 1 Blade body 2 Rotating shaft 2a, 2b Open end 3 Slit 4 Side plate 5 Hole t Tube body p Plate body a Stainless steel plate b One edge c The other The edge of the middle part

Claims (1)

(57) [Claims] 1. An air blowing / suction device comprising: a blade main body; a blade including a rotation shaft thereof; and a frame body having both ends of the rotation shaft inserted into holes provided in a side plate portion. And the rotating shaft and the root body are each
It is, folded into two by a single rectangular metallic plate length direction intermediate portion
The folded portion is a tubular body portion, the folded portion is a plate body portion, and remains when both widthwise ends of the plate body portion are removed.
Composed of a cylindrical body with slits and a narrow plate
The diameter of the hole in the side plate portion of the frame body is in the width direction of the plate body portion.
When both ends are removed, the slits
The diameter of the cylindrical part with the slit that has opened and has a larger diameter
An air outlet device characterized by being slightly smaller .