JP2009107439A - Register - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a register capable of restricting a leakage of air to the minimum when movable fins of a turning louver are fully closed and further preventing whistling sound from being generated. <P>SOLUTION: A cylindrical turning louver 2 is turnably arranged within a cylindrical retainer 1 around an axis in parallel with an air blowing direction, and a first movable fin 21 and a second movable fin 22 are turnably pivoted within a blowing-out port 5 of a cylindrical frame 20 of the turning louver 2 around a pivot perpendicular to a turning axis of the turning louver 2. The first movable fin 21 has an overlapping part 213 overlapping the second movable fin 22 when it is fully closed to close the blowing-out port 5. A protrusion 214 is continuously protruded at the upstream side of the overlapping part 213 of the first movable fin 21 in such a way that it may close a clearance on the overlapped portions when it is closed, and a protrusion 215 for use in guiding disturbance air flow is formed discontinuously at the downstream side of the overlapping part of the first movable fin 21 to cross the clearance on the overlapping part. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a register mainly used for air blowing adjustment of an air conditioner such as an automobile, and in particular, has a round rotating louver that can rotate around an axis parallel to the blowing direction. The present invention relates to a round register having a movable fin pivotally supported in a louver about an axis perpendicular to the air blowing direction.

  Conventionally, as a round register having a cylindrical air outlet, a register having a round rotation louver that can rotate around a central axis along the air blowing direction of the air outlet is disclosed in Patent Document 1 below. Are known.

  This type of register includes a retainer and a bezel formed in a cylindrical shape, and a substantially cylindrical rotation louver is rotatably disposed inside the bezel and the retainer. This rotating louver is formed by pivotally supporting one or more movable fins on the inner side of a cylindrical frame so as to be rotatable about an axis parallel to the front surface of the cylindrical frame, that is, an axis perpendicular to the blowing direction. Is fitted and fitted inside the bezel and the retainer so as to be rotatable.

Also, in this type of round register, the movable fin that is pivotally supported on the inner side of the cylindrical frame with the axis parallel to the front surface as a supporting shaft covers the front surface of the cylindrical frame, that is, the front surface of the outlet. Is a so-called shut-type register that closes the air outlet by rotating it in a parallel state. The movable fin is manually operated to rotate around an axis perpendicular to the air blowing direction. For example, the movable fin is opened obliquely downward, and the rotating louver having the movable fin in that state is movable. It is operated to change the direction of the wind left, right, up and down by rotating around the axis parallel to the blowing direction with the fins.
JP 2001-280682 A

  In this type of shut-type register, when the movable fin of the rotating louver is closed, the movable fin covers the front surface of the circular outlet and blocks air flow. Although the movable fin arranged at the circular outlet has the function of closing the outlet at the front surface, it is mainly formed with the function of adjusting the direction of blowing air, so the movable fin is fully closed. Even if it is in a state, a slight gap is generated between the peripheral edge of the movable fin and the inner wall of the cylindrical frame, or between the movable fin and the movable fin. I try not to interfere.

  Also, when manufacturing a register, a dimensional error (variation in dimensions) usually occurs when molding each part. When the movable fin of the rotating louver is fully closed, the movable fin protrudes from the design surface. In order to stop the movable fin in a precise closed position with good moderation, the resistor is manufactured so as to create a slight gap at the peripheral edge of the movable fin when fully closed. For this reason, even when the movable fin is in the fully closed state, there may be a slight gap around the movable fin. there were.

  On the other hand, the movable fin of such a rotating louver is located at the forefront of the register, and considering the good design and handling by the user's hand, a sealing material such as a rubber-like elastic body is used. It is not preferable to use the attached shape, and it is not realistic to employ a sealing material in order to reduce wind leakage and prevent whistling noise.

  The present invention solves the above-described problems, and provides a register capable of minimizing wind leakage and preventing whistling noise when the movable fins of the rotating louver are fully closed. The purpose is to do.

  In order to achieve the above object, the register of the present invention has a cylindrical rotating louver mounted in a cylindrical retainer so as to be rotatable about an axis parallel to the blowing direction. A plurality of movable fins are pivotally supported in the air outlet so as to be rotatable about an axis perpendicular to the rotation axis of the rotation louver, and at least a pair of adjacent movable fins overlap each other when fully closed. In a register having an overlapping portion and closing the blowout port, a ridge is continuously provided on the upstream side of the overlapping portion of the one movable fin so as to block a gap on the overlapping portion when closed. A convex row for turbulent guides is formed intermittently on the downstream side of the overlapping portion of the one movable fin so as to cross the gap on the overlapping portion. And the convex row is the weight of the other movable fin when the movable fin is fully closed. Characterized in that disposed to substantially abut the inner surface of the mating portion. The upstream side and the downstream side are the upstream side and the downstream side when the air flow passes through the gap generated in the overlapping portion when fully closed.

  Here, the edge of the overlapping portion of the pair of movable fins is formed in an arc shape, and the upstream ridge protrudes along the arc-shaped edge of the overlapping portion of the one movable fin. The downstream row of convex portions can be intermittently arranged along an arc shape near the center of the overlapping portion of the one movable fin.

  Moreover, the overlapping part of one movable fin can be formed with a recess into which the overlapping part of the other movable fin can enter when fully closed.

  Further, the convex row formed near the center of the overlapping portion of one movable fin has a flat surface as a flat surface, and the flat surface as an inclined surface, and one edge of the convex portion row is an inner plane of the overlapping portion. It can be formed to be continuous without a step.

  According to the register of the above configuration, when the movable fins of the rotating louver are fully closed, a slight amount is caused in the overlapping portion of the pair of movable fins and the movable fins due to dimensional variation (dimensional error) during manufacturing. There may be gaps. In such a case, the ridge formed continuously on the upstream side of the overlapping portion of one movable fin first minimizes the amount of air leaking from the gap and overlaps the airflow with the minimum airflow. By passing between the turbulent wind guide projections provided on the downstream side of the mating portion, the air flow is disturbed, and the generation of whistling noise can be effectively prevented.

  The pair of movable fins has an edge of the overlapping portion formed in an arcuate shape, and the upstream ridge protrudes along the arcuate edge of the overlapping portion of one movable fin, and the downstream If the convex row on the side is intermittently arranged along the arc shape near the center of the overlapping portion of one movable fin, when the movable fin is in a fully closed state, a gap with the other movable fin is formed. It can be effectively reduced and wind leakage can be further suppressed.

  Further, if a concave portion is formed in the overlapping portion of one movable fin so that the overlapping portion of the other movable fin can enter when fully closed, when the movable fin is fully closed, the front surface is flushed. The design property can be improved.

  Furthermore, the convex row formed near the center of the overlapping portion of one movable fin has a flat surface as a square shape, and the flat surface as an inclined surface so that one edge of the convex row is an inner plane of the overlapping portion. If it is formed so as to be continuous without a step, it is possible to prevent the occurrence of whistling noise due to wind leakage while improving the appearance of the register so that the convex row on the movable fin is not conspicuous.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a perspective view when the register is closed, and FIG. 2 shows a perspective view in a state in which the movable fins of the register are opened. 3 shows an exploded perspective view of the register, and FIG. 4 shows a cross-sectional view along the axial direction of the register.

  In general, the register has a cylindrical rotating louver 2 mounted in a cylindrical retainer 1 so as to be rotatable about an axis parallel to the air blowing direction. The first movable fin 21 and the second movable fin 22 are pivotally supported in the air outlet 5 so as to be pivotable about an axis perpendicular to the central rotational shaft 6 of the rotational louver 2, and when fully closed, The adjacent first movable fins 21 and second movable fins 22 are configured to turn to a state in which the blowout port 5 is shielded while closing the blowout port 5 while forming an overlapping portion 213 that overlaps each other. The

  As shown in FIGS. 3 and 4, the front portion of the cylindrical retainer 1 is opened as a whole, and the rear cylindrical portion 12 at the rear portion is provided with a honeycomb-shaped mesh portion 4 (FIG. 4) for preventing small items from falling. ) Is provided so as to cover the opening. The front cylindrical portion of the retainer 1 is formed to have a larger diameter than the rear cylindrical portion 12, and the cylindrical frame 20 of the rotating louver 2 is rotatably inserted therein.

  Further, an operation load applying portion 9 is formed at a step portion at the boundary between the front cylindrical portion and the rear cylindrical portion 12 of the retainer 1. The operation load applying unit 9 is formed by continuously arranging a large number of tooth shapes on the circumference, and an elastic leg member 26 to be described later attached to the cylindrical frame 20 is provided with elasticity to the operation load applying unit 9. By holding and engaging, when operating the rotating louver 2, an appropriate operation load is applied, and the rotating louver 2 can be rotated and stopped with a good sense of moderation. .

  As shown in FIGS. 1 and 2, the locking claws 11 lock the locking pieces 31 of the bezel 3 to be described later at intervals of about 120 degrees at three locations on the outer peripheral surface of the front portion of the retainer 1. Provided. Further, as shown in FIG. 3, a sealing material 13 such as a sponge is attached to the outer peripheral portion of the rear cylindrical portion 12 in order to seal a gap when the register is connected to an air duct for air conditioning. . The retainer 1 having such a structure can be formed by integral molding of synthetic resin.

  A rotation louver 2 that is rotatably inserted into the retainer 1 is rotated around a cylinder frame 20 constituting a cylindrical support frame and an axis perpendicular to the center rotation axis 6 in the cylinder frame 20. The first movable fin 21 and the second movable fin 22 that are pivotally supported are provided, and the auxiliary movable fin 23 is formed integrally with the first movable fin 21. An air outlet 5 is formed inside the cylindrical frame 20 of the rotating louver 2, and the inclination angle of the first movable fin 21, the second movable fin 22, and the auxiliary movable fin 23 is changed, and the rotating louver 2 is centered. The structure is such that the wind blowing direction is adjusted up, down, left, right, or diagonally by rotating around the rotation shaft 6 to change the inclination direction of the movable fin.

  As shown in FIG. 3, flat portions 27 having thick inner walls are provided on the left and right sides of the inner peripheral portion of the cylindrical frame 20 of the rotating louver 2, and the first movable fin 21 is provided on one flat portion 27. And a shaft hole of a bearing portion that supports the rotating shafts 211 and 221 of the second movable fin 22 is provided. A concave portion is formed in the other flat portion 27, and a shaft support member 25 is fitted into the concave portion. The shaft support member 25 is formed with a shaft hole for the rotating shafts 211 and 221, and the first movable member. Assembling so that the shaft support member 25 is fitted inside the flat portion 27 in a state where one of the rotating shafts 211 and 221 of the fin 21 and the second movable fin 22 is fitted in the shaft hole of the shaft support member 25. Can do.

  As shown in FIG. 4, the cylindrical frame 20 of the rotating louver 2 is rotatably inserted into the front cylindrical portion of the retainer 1, but the central axis of the cylindrical frame 20 and the central axis of the retainer 1 are on the same axis. In order to support, the central rotation shaft 6 is attached to the center of the mesh portion 4 provided in the rear cylindrical portion 12 of the retainer 1, and the central rotational shaft 6 is positioned on the central axis of the rear cylindrical portion 12 of the retainer 1. To do.

  On the other hand, as shown in FIG. 3, on the rotating louver 2 side, a support frame 7 is provided in the transverse direction of the rear portion of the cylindrical frame 20, and a central shaft support portion having a shaft hole at the center of the support frame 7. 8 is provided, and the central shaft support 8 is located on the central axis of the cylindrical frame 20. Therefore, when the cylindrical frame 20 of the rotating louver 2 is inserted into the retainer 1, the rotating louver is fitted with the center rotating shaft 6 fitted into the shaft hole of the center shaft supporting portion 8 and accurately maintaining the center position. 2 is rotatably supported in the cylindrical frame 20 of the retainer 1. As shown in FIG. 4, the air outlet 5 of the cylindrical frame 20 of the rotating louver 2 rotates both movable fins so that the first movable fin 21 overlaps the overlapping portion 213 inside the second movable fin 22. When it is done, the structure is fully closed. Note that the overlapping portion of the second movable fin 22 is not shown with a reference numeral, but as shown in FIG. 4, the lower portion of the second movable fin 22 where the overlapping portion 213 of the first movable fin 21 overlaps. This is the part that corresponds to this.

  As shown in FIGS. 5 and 7, the first movable fin 21 of the rotating louver 2 has a fin main body formed in a substantially crescent moon shape, and side plates 210 on both sides of the fin main body are perpendicular to the fin main body. It is integrally molded. Further, the auxiliary movable fins 23 are integrally formed in parallel with the first movable fins 21 at a predetermined interval so as to extend at right angles to the lower portions of the side plates 210 on both sides. As shown in FIG. 4, the auxiliary movable fins 23 are positioned so as to be hidden inside when the movable fins are fully closed, and when the movable fins are opened, the first movable fins 21 and the second movable fins are disposed as shown in FIG. 22 is a structure for adjusting the wind direction in cooperation with No. 22.

  At the rear part of the first movable fin 21, an overlapping part 213 is formed in a shape in which an upper surface is recessed through an arc-shaped step part, and a concave part 216 is formed on the upper surface of the overlapping part 213. A part of the lower side of 22 is made to enter and can be superposed. In other words, in order to allow a part of the second movable fin 22 to be overlapped, the concave portion 216 is formed on the overlapping portion 213 of the first movable fin in accordance with the shape of the front portion of the second movable fin. ing. By forming the concave portion 216 in the overlapping portion 213, when the first movable fin 21 and the second movable fin 22 are fully closed, the lower side portion of the second movable fin 22 enters the concave portion 216 and the first movable fin 213 is moved. When the front surfaces of the fins 21 and the second movable fins 22 are fully closed, they are flush with each other.

  Further, as shown in FIGS. 5, 7, and 11, the convex strip 214 is formed along the arc-shaped edge on the upper surface of the overlapping portion 213 of the first movable fin 21, that is, on the edge of the recess 216. It protrudes continuously from the front side of the recess 216. The width and height of the cross-section of the ridge 214 are very thin, about 0.5 mm × 0.5 mm, and when the movable fin is fully closed, the first movable fin 21 and the second movable fin The ridge 214 is formed so that when a slight gap occurs in the overlapping portion between the 22, the upstream side of the gap can be closed.

  Further, a turbulent guide convex row 215 is arranged in an arc shape near the center of the upper surface of the overlapping portion 213 of the first movable fin 21. The convex row 215 is formed by arranging thin convex portions in a single row on the concave portion 216 side of the arc-shaped step portion, and the turbulent guide convex row 215 is formed from the gap between the convex portions. The protrusions are formed so as to protrude intermittently at intervals so as to allow the wind to pass therethrough. In other words, when the movable fin is in the fully closed state, if a slight gap occurs in the overlapped portion between the first movable fin 21 and the second movable fin 22, the convex portion is divided so that the downstream side of the gap is divided. The partial row 215 is formed. Further, the convex portion row 215 is formed to project intermittently in a circular arc shape at a predetermined interval near the center of the upper surface of the overlapping portion 213 on the concave portion 216.

  A slight sheet-like gap is generated between the upper surface of the overlapping portion 213 of the first movable fin 21 and the inner side surface of the second movable fin 22 due to a dimensional error of each component in which the movable fin is fully closed. In some cases, if a sheet-like airflow flows through the gap, a whistling sound may be generated. In the movable fin of the rotating louver, when a sheet-like gap is generated between the overlapping portion 213 of the first movable fin 21 and the second movable fin 22, the sheet-like gap is divided by the convex row 215. It acts to disturb the sheet-like air flow flowing through the gap and suppress the generation of whistling noise. For this reason, when the first movable fin 21 and the second movable fin 22 are fully closed, a portion of the inner surface of the second movable fin 22 that is slightly closer to the inner side of the arc-shaped edge is substantially applied to the upper surface of the convex row 215. In contact with each other, the sheet-like gap is divided.

  As described above, the height of the convex portion row 215 is formed to be as low as about 0.3 mm, and the appearance is not conspicuous to prevent the appearance from deteriorating. Further, as shown in FIG. 7, the plane of the convex row 215 is formed in a substantially square shape, and as shown in FIG. 11, the plane is inclined as an inclined surface. The edge (near the center) is formed to be continuous with the flat surface of the recess 216 without a step.

  Thus, by making the upper surface of the convex part row | line | column 215 into an inclined surface, while maintaining the function which disturbs a sheet-like air flow and suppresses a whistling sound, an external appearance is not conspicuous, and also at the time of manufacture When the first movable fin 21 is integrally formed with the auxiliary movable fin 23, the mold can be easily opened by sliding the mold so that the mold can be formed easily.

  Therefore, as described above, when the first movable fin 21 and the second movable fin 22 are fully closed, the protruding portion 214 provided on the edge of the first movable fin 21 causes the overlapping portion 213 of the first movable fin 21 to The gap between the second movable fins 22 is closed to almost zero gap, and the sheet-like gap that is likely to occur between the overlapping portion 213 of the first movable fin 21 and the second movable fin 22 is divided by the convex row 215. Thus, the sheet-like air flow caused by the gap that is likely to occur when fully closed is disturbed, and whistling noise that is likely to occur when fully closed is suppressed.

  As shown in FIG. 8, the second movable fin 22 is configured by integrally forming side plates 220 at right angles on both sides of one fin body formed in the shape of a generally crescent moon. A concave / convex portion 224 is provided on one arcuate edge of the second movable fin 22 so that the concave / convex portion 224 disturbs the sheet-like air flow flowing through the gap between the cylindrical frame 20 when fully closed. , The generation of whistling noise is suppressed. The arc-shaped edge provided with the concavo-convex portion 224 is aligned with the inner peripheral surface of the cylindrical frame 20 when fully closed, and is formed to have substantially the same curvature as that of the inner peripheral surface. Similarly, the arc-shaped edge on the side entering the recess 216 of the overlapping portion 213 of the first movable fin 21 is formed with substantially the same curvature as the curvature of the arc-shaped step portion of the first movable fin 21. .

  Furthermore, a recess 223 is formed in the center of the front surface of the second movable fin 22 so that when the closed movable fin is opened, the edge side of the second movable fin 22 is pushed easily with the tip of a finger or the like. . The side plates 220 on both sides are provided with pivot shafts 221 projecting outward, and one of the side plates 220 has a coupling shaft 222 projecting at a biased position. Further, the other side plate 220 is provided with a protruding portion 225 for generating a moderation feeling. When the first movable fin 21 and the second movable fin 22 are assembled in the cylindrical frame 20 so that the air outlet 5 can be opened and closed, and the lower portion of the second movable fin 22 is pushed into the fully closed state, the projection 225 is The structure is such that a small protrusion provided on the arc portion of the shaft support member 25 is overcome and a sense of moderation is obtained when fully closed.

  As shown in FIG. 3, when the first movable fin 21 and the second movable fin 22 with the auxiliary movable fins 23 are assembled in the cylindrical frame 20, the pivot shaft 211 and the pivot shaft 221 on one side are One shaft support member 25 having a hole is fitted, and one link member 24 is connected between the connecting shaft 212 and the connecting shaft 222 protruding from the side plate 210 and the side plate 220 on the other side.

  Further, the cylindrical frame 20 in which the first movable fins 21 and the second movable fins 22 with the auxiliary movable fins 23 are assembled on the inner side is inserted into the retainer 1 from the front side thereof. The cylindrical frame 20 is mounted so as to be fitted in a square hole 29 provided in a thickened part of the inner wall portion, and an elastic leg is brought into contact with the operation load applying portion 9 provided on the retainer 1 side, thereby rotating the louver. When 2 is turned, an appropriate operation load is generated.

  As shown in FIG. 3, the elastic leg member 26 is formed by protruding a bifurcated leg portion from the fitting portion so as to be elastically deformable, and a contact portion is formed in the retainer 1 at the tip of the bifurcated leg portion. It contacts with each tooth | gear part of the operation load provision part 9 provided in this, and it forms so that an appropriate operation load may be generated at the time of rotation operation. The elastic force of the leg portion of the elastic leg member 26 is set so as to generate an appropriate elastic load when the rotating louver 2 is inserted into a fixed position in the retainer 1.

  As shown in FIG. 3, the bezel 3 is formed in an annular shape and can be fitted to the front portion of the retainer 1, and the first movable fin 21 and the second movable fin 21 inside the cylindrical frame 20 in the rotating louver 2. It is formed in a shape that covers the gap with the movable fin 22 from the front side. In order to fit the bezel 3 to the front portion of the retainer 1, the bezel 3 is provided with a locking piece 31 having a locking hole at an interval of about 120 degrees on the circumferential portion. A locking claw 11 that is locked to the locking piece 31 protrudes from the outer peripheral surface of the portion.

  When assembling the register having the above configuration at the time of manufacture, first, as shown in FIG. 3, the shaft hole of the shaft support member 25 is formed on one of the rotating shafts 211 and 221 of the first movable fin 21 and the second movable fin 22. The link member 24 is fitted into the connecting shafts 212 and 222 on the other side. The movable fin assembly in this state is inserted into the cylindrical frame 20, and the other pivot shafts 211 and 221 are fitted into the shaft holes provided in the thick wall portion of the inner wall of the cylindrical frame 20, and the pivot support member 25. Is fitted into a fitting recess provided in the thick part of the inner wall of the cylindrical frame 20, and the first movable fin 21 and the second movable fin 22 with the auxiliary movable fins 23 are mounted in the cylindrical frame 20 of the rotating louver 2.

  As a result, the first movable fin 21 and the second movable fin 22 mounted in the cylindrical frame 20 are rotated from the fully closed position in FIG. 4 to the fully opened position in FIG. It will be able to rotate. Since the first movable fin 21 and the second movable fin 22 are connected to each other by the link member 24 between the connecting shafts 212 and 222 that are deviated from the rotation shaft, the second movable fin 22 is connected to a finger or the like as shown in FIG. When the first movable fin 21 with the auxiliary movable fins 23 is rotated in conjunction with it, the first movable fin 21 with the auxiliary movable fins 23 is also rotated and opened and closed.

  Further, the elastic leg member 26 is fitted into the square hole 29 provided in the flat portion of the cylindrical frame 20, and the cylindrical frame 20, that is, the rotating louver 2 in this state is inserted into the retainer 1 from the front side. As a result, the leg portion of the elastic leg member 26 comes into contact with the operation load applying portion 9 on the retainer 1 side, and the cylindrical frame 20 can be rotated and stopped in the retainer 1 with an appropriate operation load. Finally, the annular bezel 3 is fitted into the front portion of the retainer 1, the locking hole of the locking piece 31 is locked to the locking claw 11 on the retainer 1 side, and the bezel 3 is fitted into a fixed position. Thus, the rotation louver 2 is rotatably held in the retainer 1, and the first movable fin 21 with the auxiliary movable fins 23 and the second movable fin 22 in the rotation louver 2 are held to be tiltable.

  The register having such a configuration is used by being mounted on, for example, an air outlet of an air conditioner provided in a part of an instrument panel of an automobile. When the first movable fin 21 and the second movable fin 22 located at the outlet 5 of the register are closed as shown in FIG. 4, for example, the depression 223 of the second movable fin 22 on the upper front side is pushed with a finger or the like. The first movable fin 21 with the auxiliary movable fin 23 and the second movable fin 22 are interlocked by the link member 24, and the counterclockwise direction of the drawing around the rotation shaft 211 and the rotation shaft 221 as shown in FIG. The outlet 5 is gradually opened according to the operation. And as shown in FIG. 10, when the 1st movable fin 21 with the auxiliary movable fin 23 and the 2nd movable fin 22 will be in a substantially horizontal state, the blower outlet 5 will be in a full open state.

  On the other hand, when the lower part of the second movable fin 22 is pushed down with a finger or the like in a state where the first movable fin 21 with the auxiliary movable fin 23 and the second movable fin 22 are opened as shown in FIG. The first movable fins 21 and the second movable fins 22 with the auxiliary movable fins 23 can be tilted downward from the horizontal state as shown in FIG. 9, and the air blowing direction can be directed downward.

  In this state, holding the edge of the first movable fin 21 or the second movable fin 22 and rotating the rotation louver 2 around the central rotation shaft 6, the first movable with the auxiliary movable fin 23 is provided. The inclination direction of the fins 21 and the second movable fins 22 can be freely changed up and down, left and right, and the air blowing direction can be changed to an arbitrary direction. At this time, the rotating operation of the rotating louver 2 is performed with an appropriate operating load by the action of the elastic leg member 26 that comes into contact with the operation load applying portion 9, and the rotating louver 2 is stopped at an arbitrary angular position. Can do.

  On the other hand, when the lower portion of the second movable fin 22 is pushed with a finger or the like to close the blowout port 5, as shown in FIG. 9, the first movable fin 21 and the second movable fin 22 further rotate clockwise in the figure. The lower part of the second movable fin 22 moves into the concave part 216 on the upper part of the first movable fin 21 and is superposed on the overlapping part 213, and the convex line on the arcuate edge on the upper side of the first movable fin 21. 214 substantially contacts the inner surface of the second movable fin 22. At the same time, the inner surface of the second movable fin 22 substantially abuts on the convex portion row 215 closer to the center of the first movable fin 21. At this time, the first movable fin 21 and the second movable fin 22 are in contact with each other while the protrusion 225 of the second movable fin 22 gets over the small convex portion provided on the arcuate portion of the shaft support member 25 and generates a moderate feeling of moderation. The blower outlet 5 is fully closed.

  When the first movable fin 21 and the second movable fin 22 are fully closed, there is a slight amount of overlap between the first movable fin 21 and the second movable fin 22 due to dimensional variation (dimensional error) during manufacturing. A sheet-like gap may occur. In such a case, the gap at the time of full closure is first reduced to the minimum on the upstream side by the protruding ribs 214 protruding from the arcuate edge of the overlapping portion 213 of the first movable fin 21, and wind leakage from there Is suppressed to a minimum, and on the downstream side near the center of the overlapping portion 213, the turbulent guide convex portion row 215 substantially contacts the inner surface of the second movable fin 22, and the sheet-like gap is the convex portion. Divided by column 215.

  Therefore, even if a slight gap is generated between them, the air flow with the minimum air volume passes between the convex row 215 in a state of being divided, not in a sheet form. For this reason, the sheet-like air flow does not flow through the gap between the first movable fin 21 and the second movable fin 22, thereby causing the sheet-like air flowing through the gap between the movable fins and easily causing whistling noise. The air flow can be blocked and the generation of whistling noise can be effectively prevented.

  In the above embodiment, the protrusion 214 is provided on the arcuate edge of the overlapping portion 213 of the first movable fin 21 and the protrusion row 215 is provided closer to the center thereof. A convex line can be provided near the center of the inner side surface serving as the mating portion, and the convex row is formed in an arc shape on the inner side surface of the lower circular arc edge of the overlapping portion of the second movable fin 22. It can also be arranged. Furthermore, although the planar shape of the convex portion row 215 is a square, it may be a triangle.

It is a perspective view of a register showing one embodiment of the present invention. It is a perspective view at the time of opening of the movable fin of the register. It is a disassembled perspective view of the register. It is sectional drawing of the state which closed the movable fin. It is a perspective view of the 1st movable fin with an auxiliary movable fin. It is a perspective view of a 2nd movable fin. It is the front view (a) of the 1st movable fin with an auxiliary movable fin, the top view (b), the right side view (c), and the back view (d). It is the front view (a) of the 2nd movable fin, the same top view (b), and the same right side view (c). It is sectional drawing of the state which opened the movable fin slightly. It is sectional drawing of the state which opened the movable fin fully. It is an AA line expanded sectional view (a) of Drawing 7 (a), and a BB line expanded sectional view (b) of Drawing 7 (a).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Retainer 2 Rotating louver 3 Bezel 5 Outlet 6 Center rotating shaft 9 Operation load provision part 20 Cylindrical frame 21 1st movable fin 22 2nd movable fin 23 Auxiliary movable fin 24 Link member 25 Shaft support member 26 Elastic leg member 211 Rotating shaft 212 Connecting shaft 213 Overlapping portion 214 Convex 215 Convex portion 216 Concavity

Claims (4)

A cylindrical rotating louver is mounted in the cylindrical retainer so as to be rotatable about an axis parallel to the air blowing direction, and a plurality of movable fins are disposed in the outlet of the cylindrical frame of the rotating louver. The pivot is pivotally supported about an axis perpendicular to the pivot axis, and at least one pair of adjacent movable fins has an overlapping portion that overlaps each other when fully closed to close the outlet. In the register to
On the upstream side of the overlapping portion of the one movable fin, a protrusion is continuously projected so as to block the gap on the overlapping portion when closed, and the overlapping portion of the one movable fin On the downstream side, a row of convex portions for turbulent guides is formed so as to cross the gap on the overlapped portion, and the convex strip and the convex portion row are movable when the other fin is fully closed. A register provided so as to be substantially in contact with an inner surface of an overlapping portion of fins.   The pair of movable fins has an edge of the overlapped portion formed in an arc shape, and the upstream ridge protrudes along the arcuate edge of the overlapped portion of the one movable fin, The register according to claim 1, wherein the downstream convex row is intermittently arranged along an arc shape near the center of the overlapping portion of the one movable fin.   The register according to claim 1 or 2, wherein the overlapping portion of the one movable fin is formed with a recess into which the overlapping portion of the other movable fin can enter when fully closed. The convex row formed near the center of the overlapping portion of the one movable fin has a flat surface as a plane, and the flat surface as an inclined surface, and one edge of the convex portion row is an inner plane of the overlapping portion. 3. The register according to claim 2, wherein the register is formed so as to be continuous without a step.

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