FI62901B - ADJUSTMENT OF VOLUME FLOWS FOR USED UT- OCH / ELLER INBLAOSNINGSORGAN - Google Patents

Description

1 62901

Volume flow control device for the exhaust and / or supply element

Regulation on the volume of consumption by the competent authorities

The invention relates to a volume flow control device for an exhaust and / or blowing member, comprising a body part, slats adapted to pivot against the body part and a sliding device to which the slats adapted to pivot are operatively connected, the pivoting movement of a slat being adapted. by means of a slide device to other slats, in which the ends of the slats are cold-formed by grooving the grooved projecting ends projecting, adapted to act as slat pivots, and optionally having a spring wire in their position and cannot vibrate.

Rectangular grilles are used for both air supply and exhaust. Applications include e.g. eg apartments, offices, industry, hospitals, etc. The standard grille consists of a collar and horizontal and vertical grilles. The swiveling grilles of the grille can be used to change the inflow pattern and throw length in both height and lateral directions. In conventional grilles, the rotation of the grilles is 0-45 ° from the neutral axis.

The exhaust and / or blowing members also use a volume flow control device comprising oppositely rotating slats. In such a structure, the slats are fixed to the slider, whereby, for example, when one slat is turned, the slider transmits the turning movement to the other slats. The angle of rotation of the slats is generally less than or equal to 60 °, but usually about 45 °. The counter-turning slats are tightened by means of a spring wire, i.e. a piano wire, whereby sufficient friction is provided so that the counter-turning slats remain in the respective position non-30 and also cannot vibrate.

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In the volume flow control devices for the exhaust and / or blowing members, locking plates are used at the ends of the rotating slats, thanks to which the grille stays together, e.g. when welding the end plates of the grille. The locking plates prevent the side plates of the grille from spreading and the slats from falling off. The locking plates also prevent the spring wire, or piano wire, from coming loose.

In previously known volume flow control devices for exhaust and / or blowing members, a circular pivot axis must be formed in the halls in order to achieve the axis 10 of the pivoting slats.

In addition, the pivoting slats must have other shorter axes at the ends of the slat, through which the slats communicate with the slide.

The round pivot shaft is easy to achieve in aluminum slats by profiling the finished-15 racket slats. However, such aluminum profiling is a relatively expensive solution in terms of manufacturing costs.

Another known way to achieve circular axing is to use a closed or slatted slat, in which the closed slats are pushed into the round pins at their ends.

A solution is also known in which a profiled recess is made in the slat, to which the round pins are attached, e.g. by welding.

25 The three manufacturing techniques described above have also been used in pivoting slats, which require not only an axis of rotation but also a second axis operatively connected to the slide.

It is an object of the invention to provide an improvement to the previously known volume flow control devices for the exhaust and / or blowing members. It is a more detailed object of the invention to provide a volume flow control device in which the acceleration of the inverted louvres can be carried out in a simpler and substantially lower manufacturing cost. Yet another object of the invention is to provide a volume flow control device which makes it possible to completely omit the locking plates previously used at the ends of the slats.

The objects of the invention are achieved by a volume flow control device for the discharge and / or blowing member 3 62901, characterized in that the sides of the grooved ends acting as pivot pivot shafts are applied at their tips to lock the slats in place and hold the volume flow control device in place.

Numerous significant advantages are achieved with the volume flow control device for the exhaust and / or blowing element according to the invention. In the solution according to the invention, the axle-10 of the counter-rotating slats has been successfully carried out without the previously necessary separate circular axis. As a result, approx. 70% is saved in manufacturing costs for each slat, e.g. compared to an aluminum profiled slat. The structure according to the invention is also substantially simpler. The substantially U-shaped groove 15 acting as a pivot axis protruding from the ends of the slat can be applied from the tip, whereby the slat locks securely in place without necessarily having to use locking plates. Applying the sides of the substantially U-shaped groove from its tip also reliably ensures that the slats cannot fall off. In addition, the string wire, or piano wire, remains reliably in place 20.

The invention will be explained in detail with reference to a preferred embodiment of the invention shown in the figures of the accompanying drawing, to which, however, the invention is not intended to be exclusively limited.

25

Figure 1 shows a partially sectioned side view of a volume flow control device according to the invention for an exhaust and / or blowing member.

Fig. 2 shows a rear view of the volume flow control device according to Fig. 1 in the open position.

Figure 3 shows a section along the line III-III in Figure 1.

Figure 4 shows a top view of a preferred embodiment of the slat used in the volume flow control device according to the invention.

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Fig. 5 shows the slat according to Fig. 4 in cross section.

In the embodiment according to Figures 1-3, the volume flow control device according to the invention for the discharge and / or blow-in member is generally indicated by reference numeral 10. Since the discharge and / or blow-in member is a generally known structure, it is not shown in Figures 1-3 for clarity. . The volume flow control device 10 comprises side plates 11 and end plates 16. The volume flow control device 10 is provided with opposing pivoting slats 13 operatively connected to the slider 10 12, whereby by turning one slat 13, e.g. The shaft-like parts at the ends of the slats 13 are indicated by the reference numeral 17 and the shorter shaft-like parts at the ends of the slats 13 are indicated by the reference number 18. The shaft-like parts 17 act as a pivot axis 15 of the slat 13 and the shaft-like parts 18 cooperate with the slide 12.

Reference numeral 14 denotes a spring wire, i.e. a piano wire, which generates sufficient friction so that the slats 13 remain in their respective positions and cannot vibrate. Locking plates 15 are further arranged in the axial parts 17 of the edge grilles 13, which prevent the spring wire 14 from coming loose.

20

According to the basic idea of the invention, the slats 13 are produced by cold rolling, using e.g. a suitable roll forming method, so that the ends of the slats 13 protrude from the ends of the slats 13, which act as a pivot axis of the slats 13. As best seen in Figures 4 and 5, such a groove 17 is preferably a substantially U-shaped groove.

In addition, since the volume flow control device 10 shown in Figs. In addition, a rigid edge 19 is preferably, but not necessarily, formed in the side-30 edge of the slats 13.

The production of the slats according to Figures 4 and 5 is simple and easy by rolling a strip-like strip-like steel or aluminum strip 35 and by making the necessary cutting with shape cutters.

The slats 13 according to the invention can be locked in place in the bushings in the side plates 11 62901 by applying the sides of the U-shaped groove 17 at their tip, whereby the possibility of the slats 13 falling out is reliably prevented. In this case, in addition, the spring wire, i.e. the piano wire 14, remains reliably in place. Despite the spreading of the sides of the U-groove 17, the slats 13 5 can turn without hindrance. Such a solution makes it possible to omit the locking plates 15 completely. Of course, the lock plates 15 can still be used in the volume flow control device 10 according to the invention, if this is desired.

Only one preferred embodiment of the invention has been described above, and it will be clear to a person skilled in the art that numerous modifications can be made to it within the scope of the inventive idea set out in the appended claims.

Claims (1)

62901 P atentious volume volume flow control device for an exhaust and / or blowing member, comprising a body part (11,16), slats (13) adapted to pivot against the body part (11,16) and a slide device (12) , to which the loosely arranged slats (13) are operatively connected, the pivoting movement of one slat (13) being adapted to be transmitted by means of a slide device (12) to other slats (13), in which the ends of the slats (13) are formed by cold rolling the slats (13). ) projecting end-like grooved ends (17) adapted to act as pivot axes of the slats (13), 10 and optionally having a spring wire (14) adapted to run alternately above and below the pivot axes (17) of the slats (13) to provide sufficient friction, so that the slats (13) remain in their respective positions and cannot vibrate, characterized in that the side of the grooved ends (17) acting as pivot axes of the slats (13) t is applied at its tip to lock the slats (13) in place in the body part (11, 16) of the volume flow control device (10) and to hold any spring wire (14) in place.