JPH0651746U - Louver mechanism - Google Patents

Abstract

(57) [Summary] [Purpose] Permanently and reliably fix and maintain the louver member that adjusts the air volume and direction of the air blown from the duct mouth, with an appropriate tilt. [Structure] A support case 10 having an air inlet 12 and an opening 11, and a louver member 20 pivotally supported in the support case 10. An elastic ring 30 is interposed in the pivotal support between the louver member 20 and the support case 10.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a louver mechanism provided at an outlet for hot air or cold air that is blown out from an air blowing space provided inside a room wall or inside a partition board provided inside a room. The present invention relates to a louver mechanism with a built-in louver member that can appropriately change the wind direction.

[0002]

[Prior art]

 When blowing hot or cold air into the room for air conditioning, a ventilation space is provided inside the room wall or inside the partition board to simplify the appearance of the room. In recent years, a method has been widely used in which hot air or cold air is blown into a room from an air outlet provided on the interior wall or the like by utilizing this air blowing space, and in this case, the direction of the blown air is changed. A louver mechanism incorporating a louver member 200 as shown in FIG. 13 is provided at the air outlet of the indoor wall or the like so as to be appropriately changed.

However, in the conventional louver mechanism of this type, the louver member 200 for varying the air flow direction of the air sent into the louver mechanism pivotally supports both ends of the louver member 200 at both ends of the main body case 100. It is attached to the main body case 100, and the wind direction is changed by rotating the louver member 200 around the shaft 201 and tilting the louver member 200 toward one of the side edges of the main body case 100. In order to fix the inclined position of the louver member 200 against the wind pressure of the blown air, one end is fixed to the body case 100 and the other end is fixed to the louver member 200 as shown in FIG. A disk shape having a hole, which is in close contact with the peripheral portion of the shaft hole 101 and the surface of the flange 202 on which the shaft 201 is erected, and through which the shaft 201 is inserted, between the shaft 201 whose portion is the flange portion 202. Felt cushioning material 300 is interposed.

[0004]

However, in the felt cushioning material used in the conventional louver mechanism, after changing the inclination of the louver member 200 with respect to the main body case 100 against wind pressure, There is a disadvantage that the inclination cannot be fixed and maintained constantly and reliably. That is, since the felt material is a material that maintains high dimensional accuracy and is difficult to form, the thickness of the conventional cushioning material 300 is likely to vary, and as a result, the cushion material 300 is too thin, resulting in the surface of the shaft hole 101 edge and the flange 202 surface. A situation may occur in which the cushioning material 202 that does not come into close contact with is mistakenly assembled. In addition, in some cases, the cushioning material 300 has a thickness that is in close contact with the edge of the shaft hole 101 and the surface of the flange 202, but also has a thin portion that does not have such a thickness. However, even if an attempt is made to fix the louver member 200 after changing the inclination of the louver member 200 with respect to the main body case 100, a gap is created between the edge of the shaft hole 101 and the surface of the flange 202. There is a problem that no force is obtained and, as a result, the inclination of the louver member 200 with respect to the main body case cannot be maintained against the blown air. Further, the felt material is apt to be pressed and worn between the edge of the shaft hole 101 and the surface of the flange 202 by continuing the operation of changing the inclination of the louver member 200 with respect to the main body case, and the louver member 200 of the louver member 200 is also aged over time. It was difficult to maintain a sufficient thickness for fixing. Therefore, the present invention corrects the inconvenience of the above-mentioned conventional louver mechanism, that is, the tilt of the louver member against the body pressure against the wind pressure of the blown air can be appropriately adjusted, and the louver thus adjusted can be adjusted. An object of the present invention is to provide a louver mechanism having a structure capable of constantly and reliably fixing and maintaining the inclination of members.

[0005]

[Means for Solving the Problems]

 In order to solve the inconvenience of the conventional louver mechanism in the present invention, in the invention of claim 1, the louver mechanism is attached to a duct case having an air inlet 12 and an opening 11 for sending the inflowing air. And a louver member 20 which is housed in the support case 10 and whose both ends are pivotally supported by the support case 10, and the louver member 20 is pivotally supported by the louver member 20 and the support case 10. The elastic rings 30 that are in close contact with both ends and the support case 10 are interposed. Further, in the invention of claim 2, the louver member 20 of the louver mechanism of claim 1 is provided with independent rectifying vanes 24 having a surface orthogonal to the plate surface of the louver member 20 in the longitudinal direction of the louver member 20. A plurality of metal plates 23 are provided so as to be swingable toward both ends of the louver member and connected to the rectifying vanes 24 and movable toward both ends of the louver member 20. The louver mechanism is configured as an attached structure.

[0006]

[Action]

 In this invention, a louver mechanism is attached to a duct case having an air inlet 12 and an opening 11 for sending out the inflow air, a support case 10 housed in the support case 10, and both ends of the support case 10. The louver member 20 is pivotally supported, and an elastic ring 30 that is in close contact with both ends of the louver member 20 and the support case 10 is provided at a pivotal support portion between the louver member 20 and the support case 10. Since the louver member 20 is mounted, the louver member 20 can be rotated with respect to the support case 10 to appropriately change the inclination of the louver member 20 with respect to the support case 10. The member 20 can be temporarily fixed to the support case 10 via the elastic ring 30 and fixed and maintained against the blown air.

[0007]

【Example】

 Hereinafter, a typical embodiment of the louver mechanism according to the present invention will be described with reference to FIGS.

1 and 2 are exploded perspective views of a louver mechanism according to this embodiment, FIG. 3 is an exploded perspective view of a louver member of the same louver mechanism, and FIGS. 4 and 5 are cross-sectional views of main parts of the louver mechanism. 6 and 7 are side views of the louver mechanism, FIG. 8 is a front view thereof, FIG. 9 is a sectional view taken along the line AA in FIG. 8, FIG. FIG. 12 is a sectional view showing an assembled state of the louver member, and FIG. 12 is an enlarged perspective view of the same.

As shown in FIGS. 1 and 2 and FIGS. 8 to 10, the louver mechanism according to this embodiment includes a support case 10 and a louver member 20.

In the support case 10, one side surface in the longitudinal direction is a flat surface portion, and the side surface in the longitudinal direction opposite to the flat surface portion is a bent surface portion having a semi-arc cross-sectional shape. The opening is formed in a rectangular shape over the longitudinal direction of the support case 10 to form an opening 11 for sending out inflowing air. Further, one of the side surfaces of the supporting case 10 in the longitudinal direction, which is in contact with both the flat surface portion and the curved surface portion, is opened in a rectangular shape in the longitudinal direction of the supporting case, and is fed from the duct. An air inlet 12 is formed to receive the incoming air. Further, from the four circumferences of the opening 11 toward the outside of the support case 10, the support case 10 is provided on the same surface as the opening 11 and at the duct opening D of the partition board P or the like as shown in FIG. A mounting auxiliary plate 13 for mounting is provided. A reinforcing rib 13a is provided on the plate surface of the attachment assisting plate 13 on the side of the bending surface portion, the reinforcing rib 13a continuing to the side surface contacting both the flat surface portion and the bending surface portion, and the reinforcing rib 13a is the longitudinal direction of the support case 10. A plurality of strips are provided independently of each other along the side edge extending in the direction. As shown in FIGS. 1 and 2, the support case 10 described above has a front part 10a on the side of the opening 11 and a back part 10b on the side of the bent surface at a position approximately in the middle in the width direction of the support case 10. Both parts are provided with locking claws 10a 'which are appropriately provided on the edge of the front part 10a on the side opposite to the edge of the opening 11 and which are appropriately provided on the edge of the rear part 10b. The support case 10 is formed by being locked in correspondence with the stop recess 10b '.

As shown in FIG. 3, the louver member 20 includes an elongated plate-shaped base plate 21, an attachment plate 22 that covers one side surface of the base plate 21, the base plate 21 and the attachment plate 22. The base plate 21 includes a plurality of elongated metal plates 23 that are housed in the space between them, and a plurality of rectifying vanes 24 that are independently provided in the longitudinal direction of the base plate 21.

The base plate 21 has recesses 21 a at equal intervals at one edge of the one side face in the longitudinal direction. The bottom face of the recess 21 a has holes 2 extending from the one side face to the other side face. 1b is transparently provided. Further, a mounting shaft 21c is projected from a position in the middle of the one side surface. A mounting rod 21d having a substantially elliptical cross section is formed from one end surface of the base plate 21, and a substantially circular cross section is formed from the other end surface, and a groove extending from the front end toward the base is provided on four circumferences. Mounting rods 21e are provided so as to project toward the outside of the base plate 21, respectively. Engaging projections 21f, 21f are provided on the base plate 21 near the mounting rods 21d, 21e.

The attachment plate 22 has a fitting edge 22 a into which the base plate 21 is fitted as a bottom plate, and a cover surface 22 b that covers one side surface of the base plate 21, and one side edge extending in the longitudinal direction. An arcuate bent portion 22c is formed from the fitting edge 22a to the cover surface 22b. A part of the attachment plate 22 at a substantially middle portion in the longitudinal direction is cut out in an arc shape toward the inside of the attachment plate 22 to form an operation window 22f. The side of the bent portion facing the bent portion 22c is made an opening 22d by fitting the base plate 21 into the fitting edge 22a. The attachment plate 22 and the base plate 21 are provided with engagement protrusions 21f and 21f provided on both end faces of the base plate 21 at engagement ports 22e and 22e provided on both end face portions of the attachment plate 22, respectively. It is assembled by engaging with each other, and a space for storing a metal plate 23 described later is formed between the base plate 21 and the attachment plate 22.

The metal plate 23 has a vertical length shorter than the lengths of the base plate 21 and the attachment plate 22, and the inner side of the metal plate is substantially evenly spaced on one side edge in the length direction. Has an engaging recess 23a facing toward. Further, it has a substantially elliptical hole 23b at a position approximately in the middle of the longitudinal direction, with the long-axis direction edge of the hole 23b facing the edge side of the metal plate 23 extending in the longitudinal direction. Grooves 23c, 23c, which are substantially parallel to the side edges of the metal plate 23 in the longitudinal direction, are provided at target positions of the metal plate 23 with the hole 23b interposed therebetween. The side edge of the metal plate 23 on the side where the engaging recess 23a is not provided is bent so as to be orthogonal to the surface of the metal plate 23.

The straightening vane 24 is a thin plate made of synthetic resin, has an arc-shaped edge 24a that covers approximately three-fourths of the entire circumference, and is provided with a fitting recess 24b from the remaining edge side toward the inside. There is. An engaging tongue piece 24c projects toward the opening side of the fitting recessed portion 24b from a position approximately in the middle of the end edge of the fitting tongue portion 24b. A projection 24d having a substantially circular cross-sectional shape is projected toward one side edge of the fitting recess 24b. Corresponding to the protrusion 24d, a protrusion 24e having a substantially circular cross section is provided from one side edge of the fitting recess 24b toward the protrusion 24d, and between the protrusions 24d and 24e. The interval is slightly smaller than the wall thickness of the base plate 21. Of the end edge of the fitting recess 24b, the portion on the other side edge side of the fitting recess 24b from the protruding position of the engaging tongue piece 24c is bulged outward of the flow straightening vane 24. A columnar portion 24f having a substantially circular cross section is formed, and an engagement window 24g is provided between the columnar portion 24f and the arcuate edge 24a.

Next, an assembled state of the base plate 21, the attachment plate 22, the metal plate 23, and the rectifying vane 24 which constitute the louver member will be described. First, the metal plate 23 is assembled with an operation lever 25 having a substantially fan-shaped operation plate portion 25a and a piece portion 25b extending from the main portion of the fan-shaped portion to the outside of the operation plate portion 25a. This assembling is carried out by accommodating the projection 25c projecting from the one end surface of the piece 25b of the operation lever 25 into the substantially elliptical hole 23b of the metal plate 23. The assembled metal plate 23 is inserted into the mounting shaft 21c of the base plate 21 through a hole 25d which is provided through the fan-shaped main portion of the operation lever 25 having a substantially fan shape. The base plate 23 is mounted on the surface of the base plate 21 so that the base plate 21 can be mounted on the base plate 23. Since the metal plate 23 is assembled by pivotally supporting the mounting shaft 21c of the base plate 21 in the hole 25d of the operating lever 25, the operating lever 25 is rotated about the mounting shaft 21c. Then, the metal plate 23 assembled to the operation lever 25 by the projection 25c of the operation lever 25 is temporarily moved in the direction opposite to the rotating direction of the operation lever 25. In order to stabilize the movement of the metal plate 23, the grooves 23c, 23c of the metal plate 23 are projected to the positions corresponding to the groove 23c on the side surface of the base plate 21 on the side in contact with the metal plate 23. The provided pins 21g and 21g are slidably accommodated. Next, a plurality of the rectifying vanes 24..24 are assembled in the recesses 21a..21a of the base plate 21, respectively. In this assembly, the recess 21a of the base plate 21 is housed in the fitting recess 24b of the flow straightening vane 24, and the projections 24d and 24e provided in the fitting recess 24b of the flow straightening vane 24 are provided on the base. It is made by fitting it into a hole 21b provided in the bottom surface of the concave portion 21a of the plate 21. Of the both projections 24d and 24e of the rectifying blade 24, the projection 24d is provided at the tip of the engaging tongue piece 24c made of synthetic resin as described above, and therefore the interval between the projections 24d and 24e is When the edge of the base plate 21 on the concave portion 21a side is received between the protrusions 24d and 24e, the engaging tongue piece 24c having the protrusion 24d is pushed outward to be expanded, and the opening of the hole 21b is opened. The engaging tongue piece 24c elastically returns again when it comes into contact with, and narrows back to the original shape. Here, as described above, the distance between the protrusions 24d and 24e is slightly smaller than the wall thickness of the base plate 21, and thus the distance between the engagement protrusions 24d and 24e is the same as the above. After returning to the above state, the engaging protrusions 24d and 24e will not come out of the hole 21b of the base plate 21 as it is, and the assembled state of the flow straightening vane 24 to the base plate 21 is maintained. That is, the assembly of the rectifying vane plate 24 with respect to the base plate 21 can be performed with one touch by the engaging protrusions 24 d and 24 e and the hole 21 b of the base plate 21. Further, the metal plate 23 is accommodated in the fitting recessed portion 24b of the straightening vane 24 in the space where the recessed portion 21a of the base plate 21 is not housed, from the side where the engaging recessed portion 23a is provided. The rectifying vane 24 and the metal plate 23 are assembled so that the engagement recess 23a fits with the columnar portion 24f of the rectifying vane 24. Next, the mounting plate 22 is assembled to the base plate 21 so as to cover the side surface of the base plate 21 on which the metal plate 23 and the rectifying vane 24 are assembled in this manner, on which the metal plate 23 is assembled. The base plate 21 and the attachment plate 22 are attached so that the operation plate portion 25a of the operation lever 25 assembled to the base plate 21 projects outward from the operation window 22f of the attachment plate 22. The plate 22 is arranged on the base plate 21, and both inner end surfaces of the attachment plate 22 are brought into contact with both outer end surfaces of the base plate 21 and are provided on both end surfaces of the attachment plate 22. It is assembled by accommodating the engaging protrusions 21f, 21f provided on both end surfaces of the base plate 21 in the engaging openings 22e, 22e. The attachment plate 22 assembled in this manner is also housed in the fitting recess 24b of the flow straightening vane 24, and the flow straightening vane 24 is outward from the side of the opening 22d of the flow straightening vane 24. Is sticking out.

As described above, in this embodiment, by rotating the operation lever 25 about the attachment shaft 21c, the metal that is assembled to the operation lever 25 by the protrusion 25c of the operation lever 25. The plate 23 can be temporarily moved in the direction opposite to the rotating direction of the operation lever 25, and the engaging recess 23a of the metal plate 23 is engaged with the columnar portion 24f of the flow regulating vane 24. Moreover, since the rectifying vane 24 is pivotally supported in the hole 21b of the base plate 21 by both projections 24d and 24e, the operation plate portion of the operation lever 25 protruding from the operation window 22f of the attachment plate 22. By appropriately rotating 25a in the longitudinal direction of the attachment plate 22, the plate surface on either side of the rectifying vane 24 in the direction opposite to the rotation direction, the attachment plate 22. Can be tilted so as to approach the opening 22d formed by the base plate.

Next, the assembled state of the support case 10 and the louver member 20 will be described. Mounting holes 14 and 14 are provided substantially in the center of both end surfaces of the supporting case 10. The supporting case 10 is provided with the mounting holes 14 and 14 via an O-ring 30 made of synthetic rubber NBR, for example. Flange members 15 and 16 having different shapes are attached to the left and right mounting holes 14 and 14, respectively.

The flange member 15 assembled in the mounting hole 14 on the right side when viewed from the opening 11 side of the support case 10 includes a cylindrical main body 15a and an outer edge of one end of the cylindrical main body 15a. And a first flange portion 15b which is circumferentially provided in the direction of the first flange portion 15b, and a first flange portion 15b which is circumferentially provided outwardly from a substantially middle position of the main body portion 15a with a proper gap from the first flange portion 15b. It has two flange portions 15c. Fixing grooves 15d, 15d recessed inward in the diametrical direction are formed in the thick portion of the main body portion 15a from the opening edge of the main body portion 15a on the side where the first flange portion 15b is not provided. It is provided up to the second flange portion 15c surface. Further, on the inner wall surface of the main body portion 15a, grooves 15e ... 15e which are recessed outward in the diametrical direction of the main body portion are provided from one opening edge of the main body portion 15a to the other opening edge. ing. A portion of the edge of the first flange portion 15b that occupies approximately one-third of the entire outer circumference of the flange portion 15b has a longer dimension from the axial center of the main body portion 15a to the edge with respect to the remaining portion. The enlarged diameter portion 15f is defined as The O-ring 30 is fitted between the first flange portion 15b and the second flange portion 15c, so that the O-ring is closely contacted with the edge of the opening 11 of the support case 10. The flange member 15 is attached to the support case 10 by contacting the surface of the first flange portion 15b on the side of the second flange portion 15c with the peripheral surface of the mounting hole 14 on the right side of the support case. Therefore, the flange member 15 is rotatably fitted into the hole edge of the mounting hole 14 of the support case 10 via the O-ring 30. Here, the end face on the right side of the opening 11 side of the support case 10 is installed in the attachment hole 14 from the back side of the support case 10 toward the attachment hole 14 of the support case 10. The rotation restricting convex portion 15h is provided which is in contact with the stepped portions 15g and 15g formed by the enlarged diameter portion 15f of the first flange portion 15b of the flange member 15. Therefore, the rotation of the flange member 15 is within a range in which the step portions 15g, 15g are in contact with the rotation restricting convex portion 15h, that is, the enlarged diameter portion 15f is approximately three-thirds of the entire outer circumference of the first flange portion 15b. Since it occupies one part, the flange member 15 is rotatable within a range of approximately 240 degrees around the contact position between the rotation restricting convex portion 15h and any one of the step portions 15g and 15g. ing.

The flange member 16 assembled in the mounting hole 14 on the left side when viewed from the opening 11 side of the support case 10 includes a cylindrical main body 16a and an outer edge of one opening of the cylindrical main body 16a. And a first flange portion 16b which is circumferentially provided in a direction facing the first flange portion 16b, and a first flange portion 16b which is circumferentially provided outwardly from a substantially middle position of the main body portion 16a with an appropriate interval. It has two flange portions 16c. 16e are provided on the inner wall surface of the main body portion 16a inwardly in the diametrical direction of the main body portion 16a, and the opening edge of the main body portion 16a on the side where the first flange portion 16b is not provided. Further, it is provided up to approximately the middle of the main body 16a. A portion of the edge of the first flange portion 16b which occupies approximately one-fifth of the entire outer circumference of the flange portion 16b has a shorter dimension from the axis of the main body portion 15a to the edge with respect to the remaining portion. The reduced diameter portion 16f is formed. The O-ring 30 is fitted between the first flange portion 16b and the second flange portion 16c, and the O-ring 30 is tightly contacted with the edge of the opening 11 of the support case 10 so that the flange is closed. The member 16 is assembled to the support case 10 with the surface of the first flange portion 16b on the side of the second flange portion 16c in contact with the peripheral surface of the left mounting hole 14 of the support case. Therefore, the flange member 16 is rotatably fitted into the hole edge of the mounting hole 14 of the support case 10 via the O-ring 30. Here, on the end face on the left side of the support case 10 when viewed from the opening 11 side, the support case 10 is incorporated into the mounting hole 14 from the opening 11 side toward the mounting hole 14 of the support case 10. The rotation restricting convex portion 15h is provided so as to abut on the stepped portions 16g and 16g formed by the reduced diameter portion 16f of the first flange portion 16b of the flange member 16. Therefore, the rotation of the flange member 16 is within a range in which the step portions 16g, 16g contact the rotation restricting convex portion 16h, that is, the enlarged diameter portion 16f is approximately one third of the entire outer circumference of the first flange portion 16b. Therefore, the flange member 16 is configured to be rotatable within a range of approximately 70 degrees around the contact position between the rotation control convex portion 16h and any one of the step portions 16g and 16g. There is.

Here, the inside of the support case 10 further has a length dimension substantially equal to the length dimension of the opening 11 of the support case 10 and an air volume having a diameter substantially equal to the width dimension of the opening 11. The adjusting cylinder 40 is assembled by pivotally supporting both ends of the air volume adjusting cylinder 40 on the inner surfaces of both ends of the support case 10. The air volume adjusting cylinder 40 has an open end 41 extending in the longitudinal direction at a portion reaching approximately two-thirds of the circumference in its cross-sectional shape, leaving both end portions thereof, and the remaining approximately one-third portion. Is an air shield plate portion 42 having an arc-shaped cross section in the longitudinal direction, and the remaining both edge portions are used when the air volume adjusting cylinder 40 is rotated in the support case 10 as described later. The operation peripheral surface portion 43 is formed of The operation peripheral surface portion 43 is provided with appropriate knurling. Further, pivotal support holes 44, 44 are provided substantially in the middle of both end faces of the air volume adjusting cylinder 40, and a pair of inner walls of the pivotal support holes 44, 44 are provided with a pair of inward radial directions. Protrusions 44a, 44a are provided.

The air flow rate adjusting cylinder 40 is provided with the protrusions 44 a and 44 a on the main body portion 15 a of the flange member 15 assembled in the mounting hole 14 located on the right side of the opening 11 of the support case 10. The protrusions 44a, 44a are fitted into the fixing holes 15d, 15d recessed in the main body portion 15b by aligning the protrusions 44a, 44a into the pivot hole 44 formed in the main body portion 15b. The collar 50 is attached to the body portion 16a of the flange member 16 which is assembled in the mounting hole 14 located at the position of the flange member 16 through the annular collar 50 loosely fitted to the first flange portion 16b of the body portion 16a. By being inserted into the other pivotal support hole 44 of the air volume adjusting cylinder 40 while being fitted therein, it is housed and assembled in the support case 10.

The louver member 20 has a substantially elliptical cross-sectional shape in the hole of the main body portion 16a of the flange member 16 that is assembled in the mounting hole 14 located on the left side of the opening 11 of the support case 10. The mounting rod 21d is inserted, the mounting rod 21d is fixed by the projections 16e ... 16e provided in the hole, and is located on the right side of the opening 11 of the supporting case 10. By mounting the mounting shaft 21c in the collar 60 through the tubular collar 60 that is loosely fitted in the hole of the flange member 15 assembled in the mounting hole 14, the housing is housed and assembled in the support case 10. To be

Therefore, the louver member 20 and the air volume adjusting cylinder 40 thus assembled can be operated with respect to the support case 10 as follows. First, the louver member 20 has a substantially elliptical cross section in the hole of the main body portion 16a of the flange member 16 which is assembled in the mounting hole 14 located on the left side of the opening 11 of the support case 10. The mounting rod 21d is fitted, and the mounting rod 21d is fixed by the ridges 16e ... 16e provided in the hole, and the mounting hole 14 is located on the right side of the opening 11 of the support case 10. Since the mounting shaft 21c is fitted in the collar 60 through the tubular collar 60 which is loosely fitted in the hole of the flange member 15 to be assembled to the louver member 20, the flange member 15 is rotated by the louver member 20. Without using the collar 60 and the edge of the mounting hole 14 on the side where the flange member 16 of the support case 10 is assembled as a bearing, the inside of the support case 10 can be rotated, that is, the loop. The inclination of the member 10 in the vertical direction with respect to the support case 10 can be appropriately changed, and the changed state is used by utilizing the resistance of the contact surface between the O-ring 30 fitted in the flange member 16 and the edge of the mounting hole 14. And can be maintained. Next, in the air volume adjusting cylinder 40, the main body 15a of the flange member 15 assembled in the mounting hole 14 located on the right side of the opening 11 of the support case 10 is provided with the protrusions 44a, 44a. The protrusions 44a, 44a are fitted in the support holes 44 in the fixing grooves 15d, 15d recessed in the main body 15b, and the mounting is located on the left side of the opening 11 of the support case 10. The collar 50 is attached to the body portion 16a of the flange member 16 assembled in the hole 14 via the annular collar 50 loosely fitted to the first flange portion 16b of the body portion 16a. Since it is fitted in the other pivot hole 44 of the collar 40 while being installed therein, the air flow control cylinder 40 does not rotate the flange member 16 and the flange of the collar 50 and the support case 10 does not rotate. Using the edge of the mounting hole 14 on the side where the jig member 15 is assembled as a bearing, the rotation in the case, that is, the inclination of the air flow rate adjusting cylinder 40 in the vertical direction with respect to the support case 10 can be appropriately changed and changed. This state can be maintained by utilizing the resistance of the contact surface between the O-ring 30 fitted in the flange member 15 and the edge of the mounting hole 14.

Therefore, according to this embodiment, the blowing direction of the air sent from the inside of the duct through the air inlet 12 is appropriately changed by changing the angle of the louver member 20 with respect to the opening 11 of the support case 10. By temporarily fixing it against the air, it can be arbitrarily adjusted in the width direction of the opening 11. Further, the air volume of the air is adjusted by appropriately rotating the air volume adjusting cylinder 40 in the support case 10 and fixing it against the air so that the opening 11 or the air inlet 12 of the support case 10 can be fixed. Can be arbitrarily adjusted by appropriately closing it by the wind-shielding plate portion 42 of the air volume adjusting cylinder 40. Particularly, in this embodiment, the louver member 20 and the air volume adjusting tube 40 are both pivotally supported to the support case 10 by using the mounting holes 14 and 14 provided on both side surfaces of the support case 10 as bearing holes. It is not necessary to provide a bearing hole or the like for separately pivoting the adjusting cylinder 40 with respect to the support case 10, and the louver mechanism has the feature of being simple in appearance and structure.

[0026]

[Effect of device]

 In this invention, the louver member can be rotated with respect to the support case to appropriately change the inclination of the louver member with respect to the support case, and the louver member with the inclination thus changed is temporarily fixed to the support case, Since it is fixed and maintained against the blown-out air by elastic rings that can be molded with high dimensional stability and is less likely to wear over time, it is tightly contacted with both ends of the louver member and the supporting case. The inclination of the louver member thus adjusted can be fixed and maintained constantly and reliably. The louver member is provided with a surface orthogonal to the surface of the louver member, independent of each other, and a plurality of louver members can be swung freely toward both ends of the louver member in the longitudinal direction. The rectifying blades provided are connected to the rectifying blades attached to the louver member, and are swung toward both ends of the louver member by metal plates movable toward both ends of the louver member. Since the metal plate is operated, the metal plate is not easily bent or deformed due to the strength of the metal plate, and the straightening vane can be reliably rotated even if the metal plate is thin. As a result, according to the present invention, the thickness of the louver member itself having the rectifying blades can be reduced by making the metal plate thin, and the louver member itself does not block the opening of the louver mechanism more than necessary. Therefore, even if the opening of the louver mechanism is made small, the inflowing air can be sufficiently sent out, and the louver mechanism itself can be made compact.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a louver mechanism.

FIG. 2 is an exploded perspective view of a louver mechanism.

FIG. 3 is an exploded perspective view of a louver member 20 that constitutes a louver mechanism.

FIG. 4 is a sectional view of a main part of a louver mechanism.

FIG. 5 is a cross-sectional view of a main part of a louver mechanism.

FIG. 6 is a side view of the louver mechanism.

FIG. 7 is a side view of the louver mechanism.

FIG. 8 is a front view of the louver mechanism.

9 is a cross-sectional view taken along the line AA in FIG.

FIG. 10 is a partially cutaway plan view of the louver mechanism.

FIG. 11 is a cross-sectional view showing the louver member 20 of the louver mechanism, including the rectifying blades 24 of the louver member 20.

FIG. 12 is a flow regulating vane 24 of the louver member 20 of the louver mechanism.
FIG. 3 is an enlarged perspective view and a plan view showing FIG.

FIG. 13 is a sectional view of a main part of a conventional louver.

[Explanation of symbols]

 10 Support Case 10a Front Part 10b Rear Part 10a 'Locking Claw 10b' Locking Recess 11 Opening 12 Air Inlet 13 Mounting Auxiliary Plate 13a Reinforcing Rib 14 Mounting Hole 15 Flange Member 15a Main Body 15b First Flange 15c No. 2 flange part 15d fixed groove 15e groove 15f expanded diameter part 15g stepped part 15h rotation restriction convex part 16 flange member 16a main body part 16b first flange part 16c second flange part 16e convex line 16f reduced diameter part 16g step part 16h Rotation restriction convex portion 20 Louver member 21 Base plate 21a Recessed portion 21b Hole 21c Mounting shaft 21d Mounting rod 21e Mounting rod 21f Engagement protrusion 21g Pin 22 Attachment plate 22a Fitting edge 22b Cover surface 22c Bending portion 22d Opening portion 22e Abutment 22f Operation window 23 Metal plate 23a Recess 23b hole 23c groove 24 straightening vane 24a arcuate edge 24b fitting recess 24c engaging tongue piece 24d protrusion 24e protrusion 24f columnar portion 24g engaging window 25 operating lever 25a operating plate portion 25b one portion 25c protruding portion 25d hole 30 O-ring 40 Air Volume Control Cylinder 41 Opening Part 42 Wind Barrier Plate 43 Operation Peripheral Surface Part 44 Pivoting Hole 44a Protrusion 50 Color 60 Color

Claims (2)

[Scope of utility model registration request] 1. A support case attached to a duct opening having an air inlet and an opening for sending out the inflowing air,
A louver member housed in the support case and pivotally supported at both ends by the support case, and at both end portions of the louver member and the support case at a pivotal support portion between the louver member and the support case. A louver mechanism characterized by having an elastic ring in close contact therewith. 2. The louver member is provided with a plurality of independent rectifying vanes each having a surface orthogonal to the surface of the louver member and directed toward both ends of the louver member in the longitudinal direction of the louver member. 2. The louver mechanism according to claim 1, further comprising a metal plate attached to the rectifying vane and movable to both ends of the louver member. .