JPH0517543Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an airflow direction switching device for a ceiling-mounted outlet.

[Conventional technology]

The ceiling-mounted air outlet serves as an air conditioning air outlet.
There are two types: a multilayer cone type and a pan type.The multilayer cone type has the advantage that the primary air of the blown air attracts a large amount of secondary air in the room, making it possible to perform air conditioning by creating an extremely large difference in the temperature of the blown air. In the case of a mold, the diffusion radius is large even with a small amount of blown air, so it has the advantage of being able to air condition a relatively large floor area.

Furthermore, in both the multilayer cone type and pan type, the inner cone is configured to be movable up and down, and the direction of the airflow can be changed downward or horizontally between the inner cone and the outer cone installed on the ceiling. ing.

During heating in winter, the inner cone is pushed up to set the airflow direction downward, and during cooling in summer, it is pulled down and adjusted so that the airflow direction is horizontal.

When setting the middle cone in the upper and lower positions, the following methods are conventionally known.

FIG. 6 shows a side cross section of a conventional airflow direction switching device for a ceiling-mounted outlet.

In the figure, 20 is an outer cone, and 21 is an inner cone. 233 leaf springs with wavy inner surfaces are attached to the neck plate 22 on the outer cone 20 side, and the wavy surface of the leaf springs 23 is pressed. , same plate spring 23
An adjuster string 24 is attached to the inner cone 21 side, and is locked by the adjuster string 24.

The middle cone 21 is further provided with a fall prevention fitting 25 formed to be inserted into the inside of the adjuster string 24, and after the adjuster string 24 is pressed against the plate spring 23, the middle cone 21 is inserted.
is rotated and the fall prevention fitting 25 is inserted into the inside of the adjuster string 24 to prevent the inner cone 21 from falling in case of an emergency.

Another example is shown in FIG.

In this example, a protrusion 28 is provided on the inner side of the neck plate 27 on the outer cone 26 side, and an adjuster plate 30 is provided on the inner cone 29 side, which engages with this protrusion 28 and locks the inner cone 29. .

An engagement groove 31 is opened in the adjustment plate 30,
Hook portions 31a are provided at the upper and lower portions of the engaging groove 31.
The inner cone 29 is rotated with the protrusion 28 engaged with the engagement groove 31, the protrusion 28 is engaged with the hook portion 31a, and the inner cone 29 is rotated.
can be set in the upper and lower positions.

[Problem that the invention attempts to solve]

However, with the conventional structure described above, when the middle cone is moved up and down to set the middle cone in the upper and lower positions, the middle cone must be rotated, making handling complicated. It was hot.

Another disadvantage is that parts are easily damaged, and adjustments cannot be made by those who are not accustomed to handling them.

Furthermore, the structure is complicated and manufacturing costs such as processing and assembly are high.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an airflow direction switching device for a ceiling-mounted air outlet that eliminates the above-mentioned drawbacks, has a small number of parts, is compact, and is easy to handle.

[Means for solving problems]

In order to achieve the above purpose, the present invention pushes the blades toward the outer frame during heating to change the airflow direction downward, and during cooling, the blades are pulled down in the opposite direction to the outer frame to change the airflow direction horizontally. The ceiling-mounted air outlet configured as shown in FIG. , integrally opening a horizontally elongated protrusion guide groove and a vertically elongated switching groove that engages with the protrusion;
On the back side of the switching fitting, a switching leaf spring is fixed to one side and extends to press the tip of the protrusion engaged with the switching groove, and the switching leaf spring has the protrusion positioned above and below the switching groove. It has a structure in which a protrusion for fixing is formed.

[Effect]

Therefore, the inner cone can be stably set in the upper and lower positions simply by moving it up and down without rotating it.

〔Example〕

Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

Note that the same parts as in the conventional example are given the same reference numerals.

Fig. 1 is a perspective view of essential parts of an embodiment of the present invention, Fig. 2 is a side sectional view of the locking structure, Fig. 3 is a front view of the switching fitting, and Fig. 4 is a ceiling-mounting device according to the present invention. An exploded perspective view of the air outlet and FIG. 5 are explanatory views of the attachment of the attachment pin and the bracket.

In the figure, reference numeral 1 denotes an outer cone that is attached to the ceiling as an outer frame, and a neck plate 2 is fitted into the neck portion of the outer cone 1 and attached with screws or the like.

A bracket 3 is attached to the inner wall of the neck plate 2 for connection to an intermediate duct (not shown).

A mounting pin 4 having a hollow structure is crimped and attached to this bracket 3. After crimping, a threaded portion is formed in the hollow part of the mounting pin 4, and the connecting plate 2
The neck portion of the outer cone 1 and the bracket 3 are fastened together with screws.

The bracket 3 and the mounting pin 4 are provided on the inner wall of the neck plate 2 at three equally spaced locations.

Further, 5 is a middle cone, which has a structure in which blades such as a center cone (not shown), a first cone 6, a second cone 7, etc. are assembled integrally.

A cylindrical main shaft 8 is crimped and joined to the center cone, and three stays 9 are fixed to this main shaft 8 with blind rivets 10.

That is, the stay 9 has a joint surface that is in contact with the outer diameter surface of the main shaft 8, and further has a vertical surface extending in the radial direction of the main shaft 8 with the back of the main shaft 8.
L-shaped ears 9a and 9b are formed for attaching the No. 6 cone and the No. 2 cone 7.

On the other hand, the other end side portion of the stay 9 that is joined to the main shaft 8 has the adjacent stay 9 in contact with the turned portion 9c,
It is screwed on with screws.

A switching fitting 11 is further provided at the outer end of the stay 9.
is removably attached with screw 12.

The switching fitting 11 has a projection engaging surface 11a formed at a position where it can engage the mounting pin 4 protruding from the inner wall on the outer cone 1 side, and a flank surface 11b formed at a position not contacting the mounting pin 4. a vertical surface, a stay joint surface 11c bent at right angles to the vertical surface, that is, in the radial direction of the main shaft 8; and this stay joint surface 11
Outer cone support portion 11 formed by extending c downwardly and outwardly.
It has d.

As mentioned above, the stay joint surface 11c is
2, it is screwed onto the stay 9.

Furthermore, as shown in FIG.
A and flank surfaces 11b are provided with switching grooves 13 that engage with the mounting pins 4.

That is, a vertically elongated switching groove 13 is opened in the protrusion engaging surface 11a, and a laterally elongated protrusion guide groove 14 is further provided from the bottom of the switching groove 13 to the flank surface 11b.

The length of the switching groove 13 is the same as the adjustment stroke of the middle cone 5, and
3 is the cooling set position 13a, and the lowest part is the heating set position 13b.

Further, on the back side of the flank 11b of the switching fitting 11, a switching leaf spring 15 is extended with one side thereof crimped. The switching plate spring 15 is formed to cover the flank surface 11b and the back side of the protrusion engaging surface 11a, and on the back side of the protrusion engaging surface 11a,
The mounting pin 4 is configured to strongly press the switching leaf spring 15.

In a portion on the back side of the switching groove 13, the switching leaf spring 15 has a protrusion 15a whose intermediate portion protrudes forward in the shape of a mountain when viewed from the mounting pin 4 side. The upper cooling set position 13a and the lower heating set position 13b are relatively recessed through the portion 15a.

However, the mounting pin 4 and the switching leaf spring 15 are also in a pressed state at the cooling set position 13a and the heating set position 13b, and support the middle cone 5.

When the inner cone 5 is moved up and down, when the mounting pin 4 comes into contact with the protrusion 15a of the switching leaf spring 15, the switching leaf spring 15 is pushed inward using the caulking part 16 as a fulcrum, and the mounting pin 4 When the mounting pin 4 and the switching plate spring 15 go over the slope of the projection 15a, the mounting pin 4 and the switching plate spring 15 are in a stable pressed state. (See Figure 2) The present invention is constructed as described above, and the mounting pin 4 remains engaged with the longitudinal switching groove 13.
Since the switching leaf spring 15 presses the tip of the mounting pin 4, the inner cone 5 can be adjusted up and down by simply moving it up and down directly.

When removing the middle cone 5, push up the middle cone 5 and rotate it further to the left to move the mounting pin 4 from the lowest position of the switching groove 13 to the protrusion guide groove 1.
4, the mounting pin 4 can be removed from the switching fitting 11 at the flank 11b.

In the above embodiment, a round multi-layered cone type was described, but the present invention can of course be applied to a round bread type and a square diff user.

Moreover, when the protrusion guide groove 14 is formed horizontally from the top of the switching groove 13, and when the protrusion guide groove 14 is formed horizontally from the top of the switching groove 13,
Shapes other than mountain shapes also belong to the technical scope of the present invention.

[Effect of idea]

As explained above, according to the present invention, the following effects are produced.

() The vertical position of the middle cone can be adjusted by simply moving the middle cone up and down in a straight line.

() Unlike conventional methods, there is no need to rotate the inner cone, so there is no damage to the equipment.

() Due to the compact structure, manufacturing costs are low and failures occur less frequently.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the main parts of an embodiment of the present invention, Fig. 2 is a side sectional view of the locking structure, Fig. 3 is a front view of the switching fitting, and Fig. 4 is an exploded view of the anemo type differential user. A perspective view and FIG. 5 are explanatory views of the attachment of a mounting pin and a bracket, and FIGS. 6 and 7 are a side sectional view and an overall perspective view, respectively, of the conventional example. 1...Outer cone, 2...Network plate, 3...Bracket, 4...Mounting pin, 5...Inner cone, 6...
...No. 1 cone, 7... No. 2 cone, 8... Main shaft,
9... Stay, 9a, 9b... Ear part, 9c... Return part, 10... Blind rivet, 11... Switching fitting, 11a... Projection engaging surface, 11b... Flank surface, 11c... Stay Joint surface, 11d... Outer cone support part, 12... Screw, 13... Switching groove, 13
a...Cooling set position, 13b...Heating set position, 14...Protrusion guide groove, 15...Switching plate spring, 15a...Protrusion, 16...Clinching part.

Claims (1)

[Scope of utility model registration request] In a ceiling-mounted air outlet configured to push the blades up toward the outer frame during heating to change the airflow direction downward, and to change the airflow direction horizontally by pulling the blades down in the opposite direction to the outer frame during cooling, It has a switching fitting that is removably attached to a stay that is connected to the blade, and a protrusion that projects inwardly on the outer frame side,
The switching fitting is integrally formed with a horizontally elongated protrusion guide groove and a vertically elongated switching groove that engages with the protrusion, and the tip of the protrusion that engages with the switching groove is pressed on the back side of the switching fitting. For ceiling mounting, the switching plate spring is fixed and extended on one side, and the switching plate spring is provided with protrusions for fixing the protrusions at the upper and lower positions of the switching groove. Airflow direction switching device at the outlet.