FI61351B - ANSLUTNINGSORGAN FOER INBLAOSNINGS- ELLER UTBLAOSNINGSORGAN - Google Patents

Description

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JOA lJ 1 'UTLAGGN I NGSSKRIFT O f O D I

• • / Λί? C (45) Patent lySnneity 12 07 1002

Patent raeJdelnt ^ v ^ (51) Kv.lk?/lnt.CL3 F 24 F 13/06 SUOMI — FINLAND (21) p »t.nttjh * k * mu * -ρκ · Μ · η · Μ« ΐπι 800317 ( 22) HakamtipUvt - Ameknlnpdtg 01.02.80 ^ ^ (M) AlkupUvl — GHtlgh «tsdag 01.02.80 (41) Tullut lulklsukal - Blivlt off« mill 02.08.8l

Patent and Registration Office ............. . , _ ^ ^,,. (44) Date of shipment. - is a-j flp

Patent and registration authorities' AraBkan uthfd and utl. »Krtften pubUcersd (32) (33) (31) Pyy * 1 · ** / otuolkou * —Begird prlorttat (71) Haiton Oy, 47UOO Kausala, Finland-Finland (Fl) ( 72) Erkki Aalto, Kausala, Arvi Toiminen, Kausala, Finland-Finland (FI) (74) Forssen & Salomaa Oy (54) Connector of supply or exhaust element -Anslutningsorgan för inbläsnings- eller utbläsningsorgan

The invention relates to a connecting member of a supply or exhaust member, comprising a body part delimiting the flow channel, which connecting member is provided with a connecting collar and at least one plate-like adjusting member for restricting the flow opening delimited by the connecting collar of the connecting member.

Such connecting members of the supply-in or exhaust-blowing member are used, for example, as a connecting member of the floor-in-blowing-in or exhaust-blowing members. Several different solutions are known for controlling the volume flow of the supply or exhaust element. One such solution is to use a so-called plug valve. However, this known solution is expensive and also has the disadvantage of the loudness of the control device. In addition, the flow channel is difficult to clean. In addition, this known control device has a relatively limited control possibility and the control device always causes a relatively high pressure drop.

A solution is also known from the prior art, such as from U.S. Pat. No. 2,909,983, in which a single adjusting plate is arranged, which is arranged in one of the grooves on both edges to restrict the flow opening defined by the connection collar in the connecting member. However, such an adjustment plate is insecure in operation and particularly prone to damage. In addition, it is practically impossible to replace such an adjustment plate with another type of adjustment plate. If very loose tolerances are used, the control flap makes a harmful noise when moving due to the air flow. In this case, the adjustment plate may also move accidentally, resulting in an incorrect adjustment position. In addition, this known control solution is relatively expensive.

The object of the invention is to eliminate the above-mentioned drawbacks. It is a more detailed object of the invention to provide a connecting member of the blow-in or blow-out member, in which the volume flow adjustment of the blow-in or blow-out member can be performed in a simple and reliable manner. Other more detailed objects and advantages of the invention will become apparent from the description of the invention.

The objects of the invention are achieved by a connecting member of the supply or exhaust member, which is characterized in that the adjusting member is a detachable adjusting member for changing the throttling, the other end edge of which can be pressed into the groove in the bottom of the connecting member. Other features of the invention are set out in claims 2-8.

Numerous significant advantages are achieved with the connecting element according to the invention and its control device. Removable adjusting plates allow a flexible change from the adjusting plate to another type of adjusting plate, whereby e.g. a closed adjusting plate can be changed to a perforated adjusting plate or a perforated adjusting plate to a control plate with larger holes. The edges of the control plate are preferably rounded, giving access to a very low-noise control device.

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.

Figure 1 shows a front view of the connecting member of the supply or exhaust blow member according to the invention.

Fig. 2 shows a side view of the connecting member according to Fig. 1.

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Fig. 3 shows a top view of the connecting member according to Fig. 1.

The connecting member according to the invention is indicated in Figure 1 by the general reference numeral 10. According to Figures 1-3, the connecting member 10 comprises a body part formed by a front plate 11, a rear plate 12, side plates 13 and 14 and a base plate 15.

In this embodiment, the connecting member 10 is substantially rectangular in cross section. The connecting member 10 is provided with a connecting collar 16 by means of which the connecting member 10 can be connected to an air conditioning duct. In this embodiment, the connection collar 16 delimits a substantially circular opening 16a through which air flows from the air conditioning duct to the connection member 10.

The connecting member 10 is provided with an intermediate collar 17. The connecting member 10 according to the invention is intended as a connecting member of the supply or exhaust blow member 18. In this embodiment, the blow-in or blow-out member 18 is a grille-like blow-in or blow-out member having a substantially rectangular cross-section. The intermediate collar 17 of the connecting member 10 according to the invention thus acts as a fastening part of the supply-or-blow-out member 18. The intermediate collar 17 can be adjusted in the up-down direction, whereby the intermediate collar 17 can be used as a telescopic part between the connecting member 10 and the blowing-in or out-blowing member 18. The blow-in or out-blow member 18 is preferably provided with a spring device 19, whereby the blow-in or out-blow member 18 is reliably attached to the intermediate collar 17. The intermediate collar 17 according to the invention is dimensioned so that the intermediate collar 17 exceeds the extreme dimensions of the blow-in or exhaust member 18.

In this embodiment, the volume flow control device of the blow-in or exhaust blow-off member 18 comprises two control flaps 20, the operation of which will become clear later. There is a scale 21 for reading the adjustment position. The connecting element 10 is sound-insulated by means of an insulator 22. As can be seen from Figure 2, a groove is formed between the insulator 22 on the preferably oblique base plate 15 of the connecting member 10 and the front plate 11 of the connecting member 10, whereby the control flaps 20 can be pressed into such a groove. The edge of the adjustment flaps 20 serves as a numerical indicator for determining the adjustment position, since preferably the scale 21 provided with a velcro fastening is placed at the edge of said groove. The adjustment flaps 20 are easily detachable from said groove and pressed again into said groove to provide the desired adjustment position. The edge of the control flaps 20 is preferably rounded on the airflow side through the opening 16a. To protect the edge of the sound insulating material 22, a strip 23 of suitable metal is preferably printed. The compression friction holding the control flap 20 in place is provided by the resilience of the sound insulating material 22. In Figures 1 and 2, reference numerals 25 denote spot welds by means of which the connection member 10 is brought together.

The intermediate collar 17 is preferably formed of a non-electrically conductive material which insulates the metallic blowing or exhausting member from electrically conductive building components or soil. In this case, it is not necessary to ground the electrical sockets in the vicinity of the supply or discharge element 18 for safety reasons. The use of such an intermediate collar 17 is even safer in solution than the previously used earthing of electrical sockets.

According to the basic idea of the invention, the throttling of the flow opening 16a delimited by the connecting collar 16 of the connecting member 10 is provided by at least one removable plate-like adjusting member 20, the other end edge of which adjusting member 20 is pressable into the groove in the bottom of the connecting member 10. The edge of the plate-shaped control flap 20 serves as a numeric mark to determine the control position. At the edge of the groove in which the adjustment flap 20 is pressed, there is preferably a scale 21 with a sticker attachment for determining the adjustment position. The edge of the control flap 20 is preferably rounded on the flow side, giving access to a very low noise connecting member 10. The mounting groove of the adjusting flap 20 is formed by a sound insulating material 22 printed on the bottom of the connecting member 10. The metal groove 23 widening, creating a space at the bottom for debris and other contaminants. The compression friction holding the control flap 20 in place is provided by the resilience of the sound-absorbing material 22.

The base plate 15 of the body part of the connecting member 10 is preferably oblique, whereby the sound-insulating material 22 is also located at the bottom of the connecting member 10 so as to form a certain angle with respect to the horizontal. This solution is more streamlined in terms of air flow, in which case the air flow is smoother. The oblique base plate 15 also offers the advantage that the manufacturing technique is

Claims (8)

A connecting member of an supply or exhaust member, comprising a body part (11,12,13,14,15) delimiting the flow channel, said connecting member (10) being provided with a connecting collar (16) and at least one plate-shaped adjusting member (20) for connecting the connecting member. (10) for throttling the flow opening (16a) delimited by the connection collar (16), characterized in that the adjusting member (20) is a detachable adjusting member for changing the throttling, the other end edge of which can be pressed into the groove in the bottom of the connecting member (10). Coupling element according to Claim 1, characterized in that the plate-shaped adjusting element (20) also acts as a numerical sign for determining the adjusting position. Coupling element according to claim 1 or 2, characterized in that there is a scale (21) at the edge of said groove for determining the adjustment position. 6 61351 Connecting element according to Claim 1, 2 or 3, characterized in that the edge of the plate-shaped control element (20) is rounded on the side of the air flow coming through the flow opening (16a). Connecting member according to one of Claims 1 to 4, characterized in that said groove is formed by a sound-insulating material (22) arranged at the bottom of the connecting member (10). 5 61351 significantly cheaper compared to a flat bottom. In addition, the flow opening 16a delimited by the connection collar 16 is made as low as possible if desired. When the volume flow control device comprises two opposably displaceable plate-like control flaps 20, in each control position a symmetrical volume flow is provided through the flow opening 16a delimited by the connection collar 16 of the connection guarantee 1. In this case, also in the connecting member 10, the pressure difference measuring point can always be arranged in the middle of the flow opening 16a delimited by the connecting collar 16. Only one preferred embodiment of the invention has been described above and it will be clear to a person skilled in the art that it can be modified in a number of different ways within the scope of the inventive idea set out in the appended claims. Connecting element according to Claim 5, characterized in that the edge of the sound-insulating material (22) is provided with a strip (23). Connecting member according to any one of claims 1 to 6, characterized in that said groove is widening towards the bottom. Coupling element according to one of Claims 5 to 7, characterized in that the compressive friction holding the plate-like adjusting element (20) in place is provided by resilience of the sound-insulating material (22).