JP2021146856A - Register and fin - Google Patents

Abstract

To provide a register in which ventilation directivity can be ensured when rotating a fin in a swing direction from a front direction while reducing generation of wind noise.SOLUTION: In a register, a ventilation path 13 is so provided in a retainer 12 as to communicate with an air port 11a of a bezel 11, a cross fin type front movable louver 2 and a rear movable louver 4 are so provided inside the air port 11a that fins are located orthogonally to each other. A marginal part on an upstream side of at least one rear fin 50 comprises an irregular marginal part 51 in which a semi-columnar surface 50d is provided in a longer direction of the marginal part, and many notched recesses 52 are alternatively provided along the longer direction on both sides of a straight line L in the longer direction that passes an apex of the marginal part in the semi-columnar surface 50d.SELECTED DRAWING: Figure 4

Description

The present invention relates to a register used for an air outlet for ventilation or air conditioning in an automobile interior or the like, and relates to a register capable of ensuring the directivity of ventilation while reducing the generation of wind noise of the register.

Conventionally, in Patent Document 1 below, as a register used for an air outlet for ventilation and air conditioning in an automobile, a retainer in which a ventilation path for supplying air is formed and a retainer are arranged in the ventilation path to control the wind direction. A register having a louver in which a plurality of adjusting fins are rotatably arranged side by side is known. In this register, a serrated portion in which a large number of serrations are arranged side by side is formed on the upstream edge of the fin, and this serrated portion positively disturbs the flow of supply air to form an irregular and small vortex. This prevents the formation of a large vortex in the register. As a result, this register is intended to reduce the wind noise of the register.

Japanese Unexamined Patent Publication No. 2019-098878

The register arranged in the interior of the automobile blows the adjusted air to the passenger, and adjusts the direction of the air by swinging the fins for adjusting the wind direction up, down, left and right.

However, the conventional register described in Patent Document 1 prevents the formation of a large eddy current by forming a serrated portion in which a large number of serrations of fins for adjusting the wind direction are arranged side by side, thereby preventing the formation of a large eddy current, and thus the windbreak of the register. Although it is possible to reduce the sound, it has not been studied that the directivity of the air blown is reduced when the movable fins are swung up, down, left and right from the front direction.

That is, as shown in FIG. 16, in the conventional register, a large number of notches 58 are formed between a large number of saw teeth 57 arranged side by side in the serrated portion 56 of the rear fin 50 (fin). For example, even if the rear fin 50 is swung from the front direction to the left and right at the maximum swing angle and the upstream side edge portion of the fin is brought into contact with the inner wall 14 of the air passage 13, the inner wall 14 and the upstream side edge portion of the rear fin 50 A gap 59 is created between the two by a large number of notches 58. By creating the gap 59, the air flowing through the ventilation path of the conventional register passes through the gap 59 and flows along the surface of the inner wall 14 of the ventilation path 13. The air flowing along the surface of the inner wall 14 has strong directivity in the front direction, which is the direction along the inner wall 14, and blows air when the rear fin 50 is rotated in the swing direction at the maximum swing angle. The direction is disturbed by the air flow through the gap 59. Therefore, the conventional register has a problem that the directivity when the fin (rear fin 50) is rotated in the swing direction is not sufficient.

The present invention has been made in view of the above points, and it is possible to secure the directivity of the blown air when the fins are rotated from the front direction to the swing direction while reducing the generation of wind noise of the register. The purpose is to provide a register that can be used.

In the register according to the present invention, a louver in which a plurality of fins for adjusting the wind direction are rotatably arranged side by side is provided in a ventilation path in the retainer, and when the louver is swung, the edge on the upstream side of the fins is provided. A register that approaches the inner wall of the ventilation path.
A semi-cylindrical surface is provided in the longitudinal direction of the upstream edge of at least one of the fins.
The fin is characterized by having concave-convex edges in which a large number of notched recesses are alternately provided along the longitudinal direction on both sides of a straight line in the longitudinal direction passing through the apex of the edge on the semi-cylindrical surface. ..

According to the register of the present invention, when the air flowing in the ventilation path flows through the edge on the upstream side of the fin, a part of the air flows into the notch recess of the uneven edge, and the direction of the air flowing into the notch recess is It is altered and actively disturbs the flow of supply air to form irregular and small eddy currents. As a result, the formation of a large eddy current at the edge of the fin is suppressed, and the wind noise of the register can be reduced. Further, since the notch recess does not appear on the straight line in the longitudinal direction passing through the apex of the upstream edge of the fin approaching the inner wall of the ventilation path, the upstream edge of the fin is a straight wall. Become. Therefore, when the louver is swung, the upstream edge of the linear fin approaches the inner wall of the ventilation path and closes the gap between the louver and the inner wall, and the air flows straight along the surface of the inner wall of the retainer. Suppress the amount of. Therefore, the register of the present invention suppresses a problem that the blowing direction is disturbed by the air flow traveling straight when the fins of the louver are rotated in the swing direction, and blows air when the louver is rotated in the swing direction. The directivity of can be ensured.

Here, in the register, the notch recess may have two surfaces in which the inner surfaces intersect at substantially right angles.

According to this, the flow direction of the air flowing in the concave shape is accurately changed by the two surfaces where the inner surfaces intersect at right angles, and the flow of the supply air is more positively disturbed to form an irregular and small vortex. Let me. As a result, the wind noise of the register can be further reduced.

Further, in the register, a plurality of the fins are arranged side by side, and at least one fin has a sawtooth shape in which a plurality of saw teeth are arranged side by side in the longitudinal direction on the edge portion on the upstream side, except for the fin provided with the uneven edge portion. It can be configured to include a part.

According to this, the fins having the serrated portion can more positively disturb the flow of the supply air to form an irregular and small vortex, and can further promote the reduction of the wind noise of the register. Moreover, the wind noise can be further reduced together with the fins having the uneven edge portion.

Further, in the register, when the fin provided with the uneven edge portion is arranged near the inner wall of the ventilation path in the retainer and the fin is rotated to the maximum swing angle, the fin The concave-convex edge portion may be configured to approach the inner wall of the ventilation path.

According to this, when the louver is swung to the maximum swing angle, the upstream edge of the linear fin approaches the inner wall of the ventilation path and substantially closes the gap with the inner wall, so that the inner wall of the retainer The air flowing straight along the surface is blocked. For this reason, when the fins of the louver are rotated to the maximum swing angle in the swing direction, the problem that the blowing direction is disturbed by the straight air flow is solved, and the louver is rotated to the maximum swing angle in the swing direction. It is possible to ensure the directivity of the air blown when the air is blown.

The fin according to the present invention is a fin that is rotatably supported in a retainer of a register.
The fin is provided with a semi-cylindrical surface in the longitudinal direction of the edge on the upstream side, and a large number of notched recesses are provided along the longitudinal direction on both sides of a straight line in the longitudinal direction passing through the apex of the edge on the semi-cylindrical surface. It is characterized by having uneven edges provided alternately.

According to the fin of the present invention, when the air flowing in the ventilation path flows through the edge on the upstream side of the fin, a part of the air flows into the notch recess of the uneven edge, and the direction of the air flowing into the notch recess is It is altered and actively disturbs the flow of supply air to form irregular and small vortices. As a result, it is possible to prevent the formation of a large vortex in the register and reduce the wind noise of the register. Further, since the notch recess does not appear on the straight line in the longitudinal direction passing through the apex of the upstream edge of the fin approaching the inner wall of the ventilation path, the upstream edge of the fin is a straight wall. Become. For this reason, it is placed near the inner wall of the ventilation path, and when the louver is swung, the upstream edge of the linear fin approaches the inner wall of the ventilation path, almost closing the gap with the inner wall, and the inner wall of the retainer. Controls the amount of air flowing straight along the surface of the wall. For this reason, when the fins are rotated in the swing direction, the problem that the blowing direction is disturbed by the air flow traveling straight is suppressed, and the directivity of the blowing when the louver is rotated in the swing direction can be ensured. can.

According to the register of the present invention, it is possible to secure the directivity of the blown air when the fins are rotated in the swing direction from the front while reducing the generation of the wind noise of the register.

It is a perspective view seen from the front side of the register of 1st Embodiment of this invention. It is an exploded perspective view of the register. A is a plan view of the rear fin provided with the uneven edge portion, B is a left side view thereof, and C is a rear view thereof. A is a perspective view seen from the back side of the fin, and B is a partially enlarged view of the uneven edge portion thereof. A is a sectional view taken along line VV of FIG. 3C, and B is a partially enlarged view of the upstream end portion thereof. A is an enlarged side view of the notch recess, B is an enlarged side view of the notch recess of the other embodiment, and C is an enlarged side view of the notch recess of the other embodiment. A is a plan view of the rear fin provided with a serrated portion, B is a left side view thereof, and C is a rear view thereof. It is an exploded perspective view of the rear movable louver. It is a perspective view seen from the back side of a rear fin and a link bar. It is a perspective view seen from the back side of the rear fin and the link bar of the 2nd Embodiment of this invention. It is a perspective view seen from the back side of the rear fin and the link bar of the 3rd Embodiment of this invention. It is a perspective view seen from the back side of the rear fin and the link bar of the 4th Embodiment of this invention. A is a plan view of the front fin to which the operation knob is fitted, and B is a perspective view seen from the back side thereof. It is a cross-sectional view of XIV-XIV of FIG. 1 when the vertical fin is directed in the front direction. It is a cross-sectional view of XIV-XIV of FIG. 1 when the vertical fin is rotated to the left. It is a perspective view with the partial enlarged view seen from the back side of the register when the vertical fin of a conventional register is rotated to the left.

Hereinafter, the register according to the first embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, this register has a duct-like shape with a substantially rectangular cross section, has a ventilation passage 13 inside, and has a retainer 12 as a housing and a bezel fitted to the front portion of the retainer 12. It is equipped with 11. Inside the retainer 12, the ventilation passage 13 and the air outlet 11a of the bezel 11 communicate with each other. Inside (upstream side) of the air outlet 11a, a front movable louver 2 and a rear movable louver 4 of a cross fin type are provided with fins arranged orthogonally to each other. The register according to the first embodiment is a register that is arranged in the center of the front dashboard of the automobile and blows air to the left and right passengers in the front seats, respectively, and the register that blows air to the passenger on the left side will be described as an example. do. In this specification, the front and rear of each part of the register are the air outlet side (downstream side) in the front and the suction port side (upstream side) in the rear, and the top, bottom, left, and right are viewed from the state where the passenger is seated. Same as up, down, left and right.

As shown in FIG. 1, the front movable louver 2 is provided on the front side in the retainer 12. As shown in FIG. 2, the three lateral front fins 21 are rotatably (tilted up and down) via fin support shafts 21a provided at both left and right ends. In order to make the fin support shaft 21a of the front fin 21 rotatable, the left and right fin support shafts 21a of the front fin 21 are pivotally supported by the left bearing portion 22 and the right bearing portion 23. Each front fin 21 has a structure in which the connecting shafts (not shown) of the front fins 21 are connected by one link bar 24, and all the front fins 21 can be synchronously changed in their orientations up and down. ..

As shown in FIGS. 1 and 13, a slide knob 3 is slidably fitted to the front fin 21 at the center in the vertical direction so as to be slidable to the left and right. The slide knob 3 is formed into a separate upper and lower body, and is fitted from above and below so as to be slidable to the left and right with respect to the central front fin 21. An arm member 34 having a set of engaging legs 34a is provided at the rear portion of the slide knob 3, and as shown in FIGS. 14 and 15, the arm member 34 is a rear fin at the center of the rear movable louver 4 in the left-right direction. By tilting the linked portion 44 provided on the front side of the 50 to the left and right, each rear fin 50 is tilted to the left and right. As a result, the slide knob 3 can tilt the front movable louver 2 up and down by touching the slide knob 3 with a finger, and can slide the front movable louver 2 left and right to tilt the rear movable louver 4 left and right.

As shown in FIG. 14, in the register of the embodiment, the center line CLO in the left-right direction of the air outlet 11a is shifted to the left with respect to the center line CLV in the left-right direction of the ventilation path 13. Therefore, at the rear end of the slide knob 3, the arm member 34 is provided on the right side of the slide knob 3, and as shown in FIG. 13B, the left side has a flat shape. A turbulent protrusion 35 that positively disturbs the flow of supply air is provided at the left end of the rear end of the slide knob 3, and positively disturbs the flow of supply air that flows to the rear of the slide knob 3 when blowing air. To form an irregular and small vortex. As a result, it is possible to prevent the formation of a large eddy current generated by the rear portion of the slide knob 3 and reduce the wind noise of the register.

As shown in FIGS. 1 and 2, a rear movable louver 4 is provided in the retainer 12 on the rear side of the front movable louver 2. In the rear movable louver 4, five rear fins 50 are arranged at intervals in the vertical direction, and as shown in FIG. 8, each rear fin 50 has an upper bearing portion 42 and a lower bearing portion arranged vertically. With respect to 43, the rear fins 50 are rotatably supported via the upper and lower fin support shafts 50a. A connecting shaft 50b is projected from the upper end side of each rear fin 50, a link bar 41 is connected to the connecting shaft 50b, and all the rear fins 50 have a structure capable of synchronously changing their orientations to the left and right. (FIGS. 14 and 15).

On the front side of one rear fin 50 located at the center of the rear movable louver 4 in the left-right direction, a linked portion 44 linked with the arm member 34 of the slide knob 3 is provided (FIG. 8), FIGS. 14 and 15. As shown in the above, when the slide knob 3 is slid in the left-right direction, the direction of each rear fin 50 of the rear movable louver 4 is adjusted to the left and right. As a result, the slide knob 3 adjusts the direction of each front fin 21 of the front movable louver 2 upward or downward by the vertical rotation operation thereof, and the rear movable louver 4 is rearward by the left and right sliding operation. The orientation of the fins 50 can be adjusted to the left or right.

As each rear fin 50 of the rear movable louver 4, two types, a rear fin 50 having an uneven edge portion 51 and a rear fin 50 having a serrated portion 56, are used depending on the shape of the edge portion on the upstream side. As shown in FIGS. 8 and 9, the register according to the first embodiment is composed of rear fins 50 having three concave-convex edge portions 51 on the right side and two rear fins having serrated portions 56 on the left side. It is composed of 50.

As shown in FIG. 7, the rear fin 50 having the serrated portion 56 has the serrated portion 56 on the upstream edge portion, and the serrated portion 56 has a large number on the upstream edge portion of the rear fin 50. Saw teeth 57 are arranged side by side. By forming the serrated portion 56 on the upstream edge of the rear fin 50, the serrated portion 56 positively disturbs the flow of the supply air to form an irregular and small eddy current in the register. It is possible to prevent the formation of a large eddy current and reduce the wind noise of the register by half. The height H (FIG. 7B) of the saw blade 57 of the sawtooth portion 56 is 2 to 15 mm, and the pitch P (FIG. 7B) of the saw tooth 57 and the saw tooth 57 of the sawtooth portion 56 is 2 to 12 mm. Thereby, the wind noise can be preferably reduced.

As shown in FIGS. 3 to 5, the rear fin 50 having the uneven edge portion 51 is provided with the uneven edge portion 51 on the upstream edge portion. The concave-convex edge portion 51 is based on a semi-cylindrical surface 50d in which the upstream side edge portion of the rear fin 50 is in the longitudinal direction, and as shown in FIG. 4B, from a straight line L passing through the apex of the trailing edge portion in the longitudinal direction of the semi-cylindrical surface 50d. A large number of notched recesses 52 are alternately formed on both the left and right sides along the longitudinal direction. As shown in FIG. 5B, the notch recess 52 has two surfaces, a vertical cross section 53 in the front-rear direction and a cross section 54 in the left-right direction, on the inner surface, and the vertical cross section 53 and the cross section 54 intersect at a substantially right angle ( The outer angle α≈90 °), the cross section 54 intersects the side surface 50c of the rear fin 50 at a substantially right angle (inner angle β≈90 °), and the longitudinal section 53 and the semi-cylindrical surface 50d of the rear fin 50 intersect at a substantially right angle (external angle α≈90 °). Internal angle γ ≈ 90 °). As for the air flowing from the upstream of the ventilation passage 13, a part of the air flows into the notch recess 52 of the uneven edge portion 51 at the upstream side edge portion of the rear fin 50. The direction of air flowing through the notch recess 52 is changed by a substantially right angle formed by the vertical cross section 53 and the cross section 54, and the direction of the side surface 50c of the rear fin 50, which is the blowing direction of the air that does not flow into the notch recess 52. It intersects (main air blowing direction) at a substantially right angle from the cross section 54. Therefore, the air flowing in the notch recess 52 positively disturbs the flow of the air flowing in the main air blowing direction to form an irregular and small vortex flow. As a result, the formation of a large eddy current at the upstream side edge of the rear fin 50 is suppressed, and the wind noise of the register can be reduced.

In the register of the first embodiment, the shape of the notch recess 52 is a U-shape with an opening on the upstream side as shown in FIGS. 4B and 6A, but a U-shape with a wide opening on the upstream side as shown in FIG. 6B. , A semicircular shape with an opening on the upstream side shown in FIG. 6C, or a combination thereof can also be adopted.

Since the notch recess 52 does not appear on the straight line L in the longitudinal direction passing through the apex of the trailing edge portion on the upstream side of the trailing edge portion 50 having the uneven edge portion 51, the trailing edge portion on the upstream side of the fin is formed. It becomes a straight wall. Therefore, when the rear movable louver 4 is swung to the left as much as possible, as shown in FIG. 15, the linear shape of the trailing edge portion on the upstream side of the rear fin 50 having the uneven edge portion 51 arranged on the far right side. The wall approaches the inner wall 14 on the right side of the ventilation passage 13 and closes the gap between the inner wall 14 and the inner wall 14, and suppresses the amount of air flowing straight along the surface of the inner wall 14 of the ventilation passage 13. The air flowing straight along the surface of the inner wall 14 on the left side of the ventilation passage 13 has a straight wall at the leading edge on the downstream side of the rear fin 50 arranged on the leftmost side, and the inner wall 14 on the left side of the ventilation passage 13. Closes the gap between the air and the inner wall 14, and suppresses the amount of air flowing straight along the surface of the inner wall 14 of the ventilation passage 13. Therefore, in the register according to the embodiment, when the rear fin 50 of the rear movable louver 4 is rotated to the maximum to the left, the problem that the blowing direction is disturbed by the air flow traveling straight is suppressed, and the rear movable louver 4 is prevented from being disturbed. It is possible to secure the directivity of the air blow when the louver is rotated in the swing direction (left).

In the register according to the embodiment, when the concave-convex edge portion 51 is provided on the upstream side edge portion of the rear fin 50, or when the serrated portion 56 is provided, the register has an irregular and small vortex flow regardless of which rear fin 50 is provided. However, the combination of the concave-convex edge portion 51 and the serrated portion 56 of the upstream side edge portion of the rear fin 50 is set depending on the size, shape, air volume, or air blowing speed of the register. be able to. The effect of reducing wind noise is superior to the rear fin 50 having the serrated portion 56 than to the rear fin 50 having the uneven edge portion 51.

The register according to the first embodiment is a register that is arranged in the center of the front dashboard of the automobile and blows air to the left and right passengers in the front seats, and is a register that blows air to the passengers on the left side. Therefore, the directivity of the air blown when the rear fin 50 of the rear movable louver 4 is rotated to the right to the maximum is not considered. That is, for the passenger on the right side, a register symmetrical with the register according to the first embodiment is arranged on the right side of the register according to the first embodiment, and the symmetrical register swings the rear movable louver 4 in the swing direction ( The directivity of the air blown when rotated to the right) is ensured.

At the time of manufacture, as shown in FIG. 2, the register is movable from the front to the upstream side in the retainer 12 to which the damper 7 (the damper plate 71 and the dial knob 72 for opening and closing the damper plate 71) is mounted. The louver 4 is fitted by inserting the upper bearing portion 42 and the lower bearing portion 43 into the upper wall portion and the lower wall portion in the retainer 12. On the downstream side of the rear movable louver 4, the front movable louver 2 is fitted by inserting the left bearing portion 22 and the right bearing portion 23 into the left wall portion and the right wall portion in the retainer 12. The bezel 11 is finally fitted to the front of the retainer 12 to complete the assembly. In this state, the arm member 34 of the slide knob 3 of the front movable louver 2 engages with the linked portion 44 of the rear fin 50 at the center of the rear movable louver 4 (FIGS. 14 and 15). As a result, the operator can adjust the direction of each front fin 21 of the front movable louver 2 up or down by rotating the slide knob 3 up and down, and by sliding left and right. , The direction of each rear fin 50 of the rear movable louver 4 can be adjusted to the left or right. That is, the slide knob 3 can adjust the wind direction in the vertical direction and the horizontal direction.

The register having the above configuration is attached to the center portion of the dashboard inside the automobile so as to connect the rear end portion of the retainer 12 to a ventilation duct (not shown). The air sent from the ventilation duct is blown out from the ventilation passage 13 in the retainer 12 through the air outlet 11a.

When adjusting the air blowing direction up or down, when the slide knob 3 is operated up or down, each front fin 21 of the front movable louver 2 rotates up or down around the fin support shaft 21a. Its orientation changes up and down, and the register is adjusted up and down in the direction of air blowing. When adjusting the air blowing direction to the left or right, when the slide knob 3 is slid to the left or right, as shown in FIGS. 14 and 15, the arm member 34 at the rear of the slide knob 3 passes through the linked portion 44. Then, one rear fin 50 located at the center of the rear movable louver 4 in the left-right direction is rotated to the left or right. The left and right directions of all the rear fins 50 of the rear movable louver 4 change within a predetermined angle range via the link bars 41 (FIGS. 8 and 9), and the register adjusts the air blowing direction to the left and right. Will be done.

The air sent from the ventilation duct is blown out from the ventilation passage 13 in the retainer 12 through the air outlet 11a. At this time, the air flowing on the surface of the rear fin 50 having the serrated portion 56 on the upstream edge actively disturbs the flow of the supply air by the serrated portion 56 to form an irregular and small vortex. Prevents the formation of large eddy currents in the register and halves the wind noise of the register. Further, as for the air flowing on the surface of the rear fin 50 having the concave-convex edge portion 51 on the upstream edge portion, a part of the air flows into the notch recess 52 of the concave-convex edge portion 51, and the direction of flow in the notch recess 52 is changed. The flow of the supply air is positively disturbed to form an irregular and small vortex, the formation of a large vortex at the edge of the rear fin 50 is suppressed, and the wind noise of the register is reduced.

FIG. 15 is a cross-sectional view of the register in the horizontal direction when the rear fin 50 of the rear movable louver 4 is rotated to the left as much as possible. At this time, the linear wall of the trailing edge portion on the upstream side of the rear fin 50 having the uneven edge portion 51 arranged on the rightmost side approaches the inner wall 14 on the right side of the ventilation passage 13 and substantially with the inner wall 14. The gap between them is closed, and the amount of air flowing straight along the surface of the inner wall 14 of the ventilation passage 13 is suppressed. Further, the straight wall of the leading edge portion on the downstream side of the rear fin 50 arranged on the leftmost side approaches the inner wall 14 on the left side of the ventilation passage 13 and closes the gap between the inner wall 14 and the ventilation passage 13. The amount of air flowing straight along the surface of the inner wall 14 of the road 13 is suppressed. Therefore, in the register of the present invention, when the rear fin 50 of the rear movable louver 4 is rotated to the maximum to the left, the problem that the blowing direction is disturbed by the air flow traveling straight is suppressed, and the rear movable louver 4 can be operated. The directivity of the air blown when rotated in the swing direction is ensured.

Next, the registers according to the second to fourth embodiments of the present invention will be described with reference to FIGS. 10 to 12. These registers differ from the registers according to the first embodiment in the combination of the rear fins 50 of the rear movable louver 4.

The register according to the second to fourth embodiments is a rear fin 50 in which the rear fins 50 at both left and right ends both have an uneven edge portion 51. As a result, when the rear fin 50 is rotated to the maximum to the left, the straight wall at the trailing edge that is the upstream side of the rear fin 50 arranged on the far right side is the inner wall 14 on the right side of the ventilation passage 13. Closes the gap between the air passage and the inner wall 14, and suppresses the amount of air flowing straight along the surface of the inner wall 14 of the ventilation passage 13. When the rear fin 50 is rotated to the maximum to the right, the straight wall at the trailing edge, which is the upstream side of the rear fin 50 arranged on the leftmost side, approaches the inner wall 14 on the left side of the ventilation passage 13. It closes the gap between the inner wall 14 and the air passage 13 and suppresses the amount of air flowing straight along the surface of the inner wall 14. That is, the directivity of the air blown when the rear movable louver 4 is rotated to the left and right is ensured.

As shown in FIG. 10, the register according to the second embodiment is a rear fin 50 in which all the rear fins 50 have an uneven edge portion 51, and the rear fins 50 do not have a serrated portion 56. Although the effect of reducing the amount of air is inferior to that of the register according to the first embodiment, it is suitable for specifications in which the amount of air blown or the air blown speed is suppressed.

As shown in FIG. 11, the register according to the third embodiment is a rear fin 50 having both left and right end portions and a concave-convex edge portion 51 at the center, and the second register from the left and right end portions between the left and right ends is serrated. The rear fin 50 including the portion 56. Since the two rear fins 50 are provided with the serrated portion 56, the effect of reducing wind noise is excellent as compared with the register according to the second embodiment.

As shown in FIG. 12, the register according to the fourth embodiment is a rear fin 50 having an uneven edge portion 51 for one of the rear fins 50 having two serrated portions 56 of the register according to the third embodiment. It is a modified version. Since one rear fin 50 is provided with the serrated portion 56, the effect of reducing wind noise is excellent as compared with the register according to the second embodiment, but is inferior to that of the register according to the third embodiment. It is a thing.

2 ... front movable louver, 3 ... slide knob, 4 ... rear movable louver, 7 ... damper, 11 ... bezel, 11a ... air outlet, 12 ... retainer, 13 ... ventilation path, 14 ... inner wall, 21 ... front fin, 21a ... Fin support shaft, 22 ... left bearing, 23 ... right bearing, 24 ... link bar, 34 ... arm member, 34a ... engaging leg, 35 ... turbulent protrusion, 41 ... link bar, 42 ... upper bearing, 43 ... Lower bearing part, 44 ... Linked part, 50 ... Rear fin, 50a ... Fin support shaft, 50b ... Connecting shaft, 50c ... Side surface, 50d ... Semi-cylindrical surface, 51 ... Concavo-convex edge, 52 ... Notched recess, 53 ... Vertical section, 54 ... Cross section, 56 ... Sawtoothed part, 57 ... Sawtooth, 58 ... Notch, 59 ... Gap, 71 ... Damper plate, 72 ... Dial knob, CLO ... Center line (air outlet), CLV ... Center line (ventilation path), H ... height, L ... straight line, P ... pitch, α ... outer angle, β ... inner angle, γ ... inner angle.

Claims (5)

A louver in which a plurality of fins for adjusting the wind direction are rotatably arranged side by side is provided in the ventilation passage in the retainer, and when the louver is shaken, the upstream edge of the fin approaches the inner wall of the ventilation passage. It is a register to do
A semi-cylindrical surface is provided in the longitudinal direction of the upstream edge of at least one of the fins.
The fin is characterized by having concave-convex edges in which a large number of notched recesses are alternately provided along the longitudinal direction on both sides of a straight line in the longitudinal direction passing through the apex of the edge on the semi-cylindrical surface. register. The register according to claim 1, wherein the notch recess has two surfaces whose inner surfaces intersect at substantially right angles. A plurality of the fins are arranged side by side, and except for the fin provided with the uneven edge portion, at least one fin is provided with a sawtooth-shaped portion in which a plurality of saw teeth are arranged side by side in the longitudinal direction at the edge portion on the upstream side. The register according to claim 1. When the fin provided with the uneven edge portion is arranged near the inner wall of the ventilation path in the retainer and the fin is rotated to the maximum swing angle, the uneven edge portion of the fin is ventilated. The register according to claim 1, wherein the register approaches the inner wall of the road. A fin that is rotatably pivotally supported in a register retainer.
The fin is provided with a semi-cylindrical surface in the longitudinal direction of the edge on the upstream side, and a large number of notched recesses are provided along the longitudinal direction on both sides of a straight line in the longitudinal direction passing through the apex of the edge on the semi-cylindrical surface. A fin characterized by having uneven edges provided alternately.

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