JP5502591B2 - register - Google Patents

Description

  The present invention has a blower outlet that is long in the longitudinal direction, and a single front fin that is provided in the blower outlet along the longitudinal direction of the blower outlet. The present invention relates to a vehicle air-conditioning register in which a mountain-shaped ridge having a first inclined surface that is inclined inward so as to approach the front fin is formed along the longitudinal opening edge of the air outlet.

  In recent years, in order to increase the area of the front window of a vehicle in the design of the vehicle, there is a tendency to reduce the space by lowering the upper end position of the instrument panel. Therefore, the registers arranged in the instrument panel are also required to have narrower outlets, and the number of front fins (design fins) provided in the outlets tends to be reduced accordingly. For example, a vehicle air-conditioning register as in Patent Document 1 has been reported.

The register of Patent Document 1 has an air outlet 10 that is long in the longitudinal direction, and a single lateral fin 13 that is provided in the air outlet 10 along the longitudinal direction of the air outlet 10. On the inner surface in the vicinity of 10, there are angle-shaped ridges 11, 12 having inclined surfaces 11 a, 11 b on the upstream side that incline inward so as to approach the lateral fin 13 toward the downstream side in the blowing direction (hereinafter abbreviated as downstream side). It is formed along the longitudinal opening edge of the air outlet 10.
And when the airflow which flows through the ventilation path 21 is blown out from the air blower outlet 10, it is bent in the direction of the horizontal fin 13 along the inclined surfaces 11a and 11b of the air blower outlet 10, and the horizontal fin 13 which is a design fin. Even if there is only one sheet, the directivity of the wind when the direction of the horizontal fins 13 is changed is good.

JP 2009-160981 A

  Here, there may be a request from a vehicle manufacturer or the like to design the front surface of the register in a substantially arc shape when viewed from the side. For example, when it is desired to make the overall design of the vehicle interior round and have a soft impression. However, in a register having only one design fin as in Patent Document 1, if the front surface is designed to have a substantially arc shape when viewed from the side, there is a problem that the performance of the front fin is greatly degraded.

It is assumed that the register front surface of the patent document 1 that is substantially linear in side view is deformed into a substantially arc shape in side view. Then, the longitudinal opening edge of the air outlet 10 is deformed into a substantially arc shape in a side view projecting downstream.
Further, since the front end edge of the horizontal fin 13 is deformed into a substantially arc shape protruding downstream along the longitudinal opening edge of the air outlet 10, the chord length in the vicinity of the end in the longitudinal direction of the horizontal fin 13 is short. Become. Thereby, in the longitudinal direction end part of the horizontal fin 13, the directivity of the wind when the direction of the horizontal fin 13 is changed will fall significantly.

  In the first place, the problem with the shape of the mountain-shaped ridges 11 and 12 of Patent Document 1 is that the pressure loss of the air flow passing through the air outlet 10 is large. In particular, since the wind speed is higher at the central portion of the air outlet 10, the pressure loss tends to increase.

  Therefore, the present invention has been made to solve the above-described problems, and when the design of the front surface of the register having only one front fin is a substantially arc shape in a side view, the longitudinal end of the front fin is obtained. An object of the present invention is to provide a register capable of improving directivity in the vicinity of the section and reducing the pressure loss of the airflow passing through the outlet as a whole.

  In order to achieve the above object, a register according to claim 1 has a blower outlet that is long in the longitudinal direction and a front fin provided in the blower outlet along the longitudinal direction of the blower outlet, and in the vicinity of the blower outlet. On the inner side surface of the vehicle, a mountain-shaped ridge having a first inclined surface on the upstream side inclined inward so as to approach the front fin toward the downstream side is formed along the longitudinal opening edge of the air outlet. In the register, the longitudinal opening edge protrudes downstream and is formed in a substantially arc shape in a side view, and the front fin also has a front end edge portion formed in a substantially arc shape along the longitudinal opening edge. The inclination angle of the first inclined surface increases in the longitudinal direction of the air outlet as it goes from the central portion to the end portion.

  The register according to claim 2 is characterized in that, in the register according to claim 1, the rear portion of the vicinity of the front fin is extended so as to lengthen the chord length of the vicinity of the end in the longitudinal direction.

  The register according to claim 3 is the register according to claim 1 or 2, wherein the rotating shaft is arranged upstream of the front fin in the outlet and in the same direction as the short direction of the outlet. A plurality of back fins are provided, and each of the back fins has a front center portion cut out.

  Further, the register of claim 4 has a ventilation path that is continuous with the air outlet in the register according to claim 3, and the inner wall along the short direction of the air outlet in the ventilation path faces the downstream side. A leak preventing portion having a second inclined surface that is inclined inward so as to approach the inner fin is formed.

In the register according to claim 1, since the front surface is designed to have a substantially arc shape when viewed from the side, the longitudinal opening edge of the air outlet protrudes downstream and is formed into a substantially arc shape when viewed from the side. A part is formed in the substantially circular arc shape along the longitudinal opening edge of a blower outlet. As a result, the chord length of the front fin becomes shorter as it approaches the longitudinal end of the front fin. On the other hand, the inclination angle of the first inclined surface increases as it goes from the central portion to the end portion in the longitudinal direction of the outlet.
Therefore, especially in the vicinity of the longitudinal end portion of the blow outlet where the chord length of the front fin is short, by increasing the inclination angle of the first inclined surface, the wind flowing in the blowing direction hits the first inclined surface and increases its direction. Change. Therefore, the wind whose direction is changed by the first inclined surface can easily hit the front fin, and the directivity of the front fin can be improved. Further, the pressure loss of the wind passing through the outlet tends to be smaller as the inclination angle of the first inclined surface is smaller, but the angle of the first inclined surface is increased near the longitudinal end of the outlet having a relatively low wind speed. Even so, the pressure loss of the air flow is not so great.
Moreover, since the chord length of the front fin becomes longer toward the longitudinal center portion of the air outlet, the pressure loss that tends to increase toward the longitudinal center portion of the air outlet can be reduced.
As described above, in the register of claim 1, the directivity of the front fin in the vicinity of the end in the longitudinal direction can be increased while reducing the entire pressure loss of the air flow passing through the outlet.

  In the register of claim 2, the rear portion of the vicinity portion is extended so as to increase the chord length of the vicinity portion of the front fin in the longitudinal direction. Therefore, the chord length in the vicinity of the longitudinal end portion of the front fin is increased without affecting the design of the front surface of the register, so that more air flows on the surface of the front fin even in the vicinity of the longitudinal end portion. The directivity in the vicinity of the end portion in the longitudinal direction can be increased. Also, the rigidity of the front fin is improved.

According to a third aspect of the present invention, the rotary shaft has a plurality of back fins disposed in the outlet in the substantially same direction as the short direction of the outlet, upstream of the front fin in the outlet.
Here, the front end edge portion of the front fin has a substantially arc shape, so that the rotation shaft provided at the end portion in the longitudinal direction of the front fin is the register of Patent Document 1 in which the front end edge portion of the front fin is formed in a substantially linear shape. Compared to this, it must be arranged upstream. Then, in order to avoid contact | abutting with a back fin and a front fin, the rotation axis | shaft of several back fins arrange | positioned in the substantially same direction as the transversal direction of a blower outlet is compared with the register | resistor of patent document 1. It will be arranged on the upstream side farther from the air outlet. Here, the directivity of the back fin depends on how small the distance between the rotation axis of the back fin and the air outlet can be. This is because, if the distance from the air outlet is long, even if the air flow in the linear direction is bent in another direction by the back fin, the air flow hits the inner surface of the air outlet and the direction is disturbed. Therefore, when the register front surface is designed to have a substantially arc shape when viewed from the side, there arises a problem that the directivity of the back fin is lowered.
However, in the register of claim 3, since the front center portion of each of the back fins is cut away, the position of the rotation axis of the back fin can be brought closer to the front end of the front fin outlet, The directivity of the wind by the fin can be improved.

According to a fourth aspect of the present invention, there is provided a ventilation passage that is continuous with the air outlet, and the inner wall along the short direction of the air outlet in the air passage is inclined inward so as to approach the back fin toward the downstream side. A leak preventing portion having two inclined surfaces is formed.
Therefore, the air flow passing near the inner wall along the short direction of the air outlet in the ventilation path is bent toward the back fin side by the second inclined surface of the leakage preventing portion. For this reason, it is prevented that the air flow that passes through the vicinity of the inner wall of the ventilation path along the short direction of the outlet exits through the gap between the inner fin and the inner wall of the ventilation path, and more air flow follows the surface of the inner fin. The directionality of the back fin can be further improved.

It is a front view of the register | resistor of 1st Embodiment. It is a perspective view of the register | resistor of 1st Embodiment. It is a side view of the register | resistor of 1st Embodiment. It is a disassembled perspective view of the register | resistor of 1st Embodiment. It is AA sectional drawing of the register | resistor of 1st Embodiment. It is sectional drawing which cut | disconnected the register | resistor of FIG. 5 by the BB line | wire which is a line | wire substantially orthogonal to the rotational axis of a front fin. It is sectional drawing which cut | disconnected the register | resistor of FIG. 5 by CC line which is a line | wire substantially orthogonal to the rotational axis of a front fin. It is sectional drawing which cut | disconnected the register | resistor of FIG. 5 by the DD line | wire which is a line | wire substantially orthogonal to the rotational axis of a front fin. It is a figure which shows the notch shape of each back fin. (A) is a top view, (B) is the perspective view seen from the right side. It is sectional drawing which cut | disconnected the register | resistor of 2nd Embodiment in the AA position of FIG. It is a side view of the retainer of 2nd Embodiment.

Hereinafter, a register according to the present invention will be described in detail based on two specific embodiments with reference to the drawings.
The register 1 according to the first embodiment described based on FIGS. 1 to 9 and the register 100 according to the second embodiment described based on FIGS. 10 and 11 are provided on both sides of the navigation screen on the instrument panel of the vehicle. Arranged. Hereinafter, the left in FIG. 1 is referred to as the left direction of the register 1, the right in FIG. 1 is referred to as the right direction of the register 1, the lower side in FIG. The forward direction in FIG. 1 is referred to as the forward direction or the downstream side of the register 1, and the rearward direction in FIG. The directions in each direction are the same in the second embodiment.

As shown in FIGS. 1 to 4, the register 1 of the first embodiment includes a bezel 10 having a front plate portion 11 that constitutes a front portion of the register 1, and a duct-like retainer 20 that is fitted and connected to the bezel 1. And have.
As shown in FIG. 1, the front plate portion 11 is a substantially rectangular shape that is long in the longitudinal direction and short in the lateral direction when viewed from the front. The front plate portion 11 is opened with a substantially rectangular air outlet 2 having a longitudinal direction substantially the same as the longitudinal direction of the front plate portion 11.
Here, as shown in FIG. 3, the front plate portion 11 of the bezel 10 has a curved plate shape that is curved in a substantially arc shape in a side view so as to protrude downstream. Therefore, 11 A of long opening edges which comprise the short side edge of the blower outlet 2 are also carrying out substantially arc shape in the side view.

A front fin 50 is disposed in the air outlet 2 along the longitudinal direction of the air outlet 2. As shown in FIG. 2, the front fin 50 has rotating shafts 51 and 52, which will be described later, disposed respectively just inside the central portion of the short opening edge 11 </ b> B of the air outlet 2. A straight line passing through the rotary shafts 51 and 52 substantially coincides with a center line that bisects the outlet 2 in the short direction, and a straight line passing through the rotary shafts 51 and 52 appears to be substantially parallel to the longitudinal direction of the outlet 2.
Although hidden behind the bezel 10 in FIG. 3, the substantially arc formed by the front end edge portion 50 </ b> A of the front fin 50 in a state of facing the front is a substantially arc shape formed when the longitudinal opening edge 11 </ b> A of the air outlet 2 is viewed from the side. It is located on the inner side so as to follow the substantially arc. The substantially arc of the front end edge 50A of the front fin 50 has a slightly smaller radius than the approximately arc formed by the longitudinal opening edge 11A, but has a similar central angle. Further, the straight line passing through the rotation shafts 51 and 52 of the front fin 50 is substantially parallel to a tangent line passing through the center point of a substantially circular arc formed when the front plate portion 11 is viewed from the side. As shown in FIG. 3, the front plate portion 11 has a shape in which the left portion protrudes slightly from the right portion in a side view.
In this way, the design of the front surface of the register 1 is formed so as to have a substantially arc shape when viewed from the side.

  As shown in FIGS. 2 and 3, the straight lines in the longitudinal direction of the register 1 are both directed upward and obliquely rearward, and the register 1 as a whole has a shape inclined upward and backward. As shown in FIG. 3, the tangent line passing through the center point of the substantially arc also inclines about 10 ° with respect to the vertical direction.

  In addition, as shown in FIGS. 1 to 3, a plurality of back fins 80 are upstream of the front fin 50, and the rotation shaft 82 is substantially orthogonal to the rotation shafts 51 and 52 of the front fin 50. It arrange | positions so that it may face substantially the same direction as the transversal direction of the blower outlet 2. FIG. The pivot shafts 82 of the respective rear fins 80 are arranged so as to be aligned along a straight line that is directed upward and obliquely rearward in accordance with the inclination of the register 1 described above.

Next, each part constituting the register 1 will be outlined with reference to FIG.
The register 1 supports the bezel 10, the retainer 20, the front fin 50, the back fin 80, the operation knob 60 that is slidably attached to the front fin 50, and the rotating shafts 51 and 52 of the front fin 50. The plate-like bearing portions 70 and 75 and the rack-like tooth portion 62 that fits the operation knob 60 are provided.

The bezel 20 includes the front plate portion 11 and the frame portion 15 that protrudes rearward from the front plate portion 11. The frame portion 15 is fitted so as to surround the front edge portion of the retainer 20 by a rear end edge portion 15B that is substantially rectangular when viewed from the rear, and at the same time, the side wall portion 15A continuous with the longitudinal opening edge 11A of the front plate portion 11 is provided. The side wall portion 15A has angle-shaped ridges 13 and 14, which will be described later, on the inner surface thereof.
On the other hand, the retainer 20 has a duct shape having a substantially parallelogram in side view (see FIG. 10) due to the inclined shape of the register 1, and forms a ventilation path 25 therein.
The frame portion 15 of the bezel 10 has a plate-like protrusion 16 for fitting to the retainer 20, and this is inserted into the outer wall hole portion 21 formed on the outer wall surface of the retainer 21. Then, the square hole 12 opened in the plate-like protrusion 11 engages with the locking protrusion 22 on the outer wall surface of the retainer 20, and the bezel 10 is fitted to the retainer 20. Thereby, the blower outlet 2 opened to the front of the front plate part 10 of the bezel 10 and the retainer 20 communicate with each other.

Further, as described above, the front fin 50 has a substantially arc-shaped front end edge portion 50A, and rotating shafts 51 and 52 are erected from both ends in the longitudinal direction in the outward direction.
Further, the lower rotation shaft 51 is rotatably supported by the shaft hole 71 of the lower bearing portion 70 and the upper rotation shaft 52 is rotatably supported by the shaft hole 76 of the upper bearing portion 75. Further, a shaft portion 53 is erected in the substantially same direction as the rotation shaft 52 immediately behind the upper rotation shaft 52. The shaft portion 53 is inserted into the long hole 77 of the upper bearing portion 1, and the rotation angle of the front fin 50 is restricted by the contact between the shaft portion 53 and the long hole 77.
The lower bearing portion 70 is fitted to the lower fitting portion 23 of the front edge portion of the retainer 20, and the upper bearing portion 75 is fitted to the upper fitting portion 24. When the bezel 10 is fitted to the retainer 20 in this state, the front ends of the bearing portions 70 and 75 abut against the inner side surface of the front plate portion 11 and are firmly fixed (see FIGS. 5 and 10).

  Further, the operation knob 60 is externally fitted so as to be slidable in the vertical direction along the longitudinal direction of the front fin 50 so as to sandwich the substantially central portion of the front fin 50. A rack-like tooth portion 62 is provided at the rear portion of the operation knob 60 that covers the front fin 50.

Further, as shown in FIG. 4, the plurality of back fins 80 are each provided with a rotation shaft 82 projecting outward from the left and right end faces, and these rotation shafts 82 are respectively connected to the left and right bearing portions 85 and 85. It is fitted so that it can rotate. When the bezel 10 is fitted to the retainer 20 in a state where the left and right bearing portions 85 and 85 are disposed inside the left wall and the right wall of the front edge portion of the retainer 20, the bearing portions 85 and 85 are framed. The bearing portions 85 and 85 are fixed firmly in contact with the inner surface of the portion 15 (see FIG. 6 and the like).
Further, as shown in FIG. 9A, each of the inner fins 80 includes a substantially rectangular front part and a substantially rectangular rear part narrower than the front part, and from the rear part, it is substantially the same as the right rotation shaft 82. Protrusions 88 are provided in the same direction. And since each projection part 88 is mutually connected by the link member 90, each back fin 80 rotates in response and can change the direction all at once. The link member 90 is located inside the retainer 20.

Further, the above-described sector gear 87 is fitted to the fourth back fin 80 from the top so as to protrude forward. The sector gear 87 is disposed so as to mesh with the above-described tooth portion 62 provided at the rear portion of the operation knob 60 on the front fin 50 positioned in front of the sector gear 87. Therefore, by sliding the operation knob 60 in the vertical direction along the front fin 13, the direction of the back fin 80 that rotates in conjunction can be changed.
In addition, the notch shape of each back fin 80 is mentioned later.

Next, the structure of the front fin 50 will be described in detail with reference to FIG.
5 is a cross-sectional view taken along the line AA of FIG. 1 and shows a substantially arc shape of the front end edge portion 50A of the front fin 50 in a side view. Further, the distance L and the distance M in FIG. 5 are both the length of a line segment that is substantially orthogonal to the straight line passing through the rotation axes 51 and 52 of the front fin 50, and the straight line passing through the rotation axes 51 and 52 of the front fin 50. The distance from the front fin front edge 50A is shown. The distance L at the location closest to the longitudinal end of the front fin 50 is the shortest distance between the straight line passing through the rotation shafts 51 and 52 and the front fin front edge 50A, and the distance M at the substantially central portion of the front fin 50 is The longest distance between the straight line passing through the rotation shafts 51 and 52 and the front edge of the front fin 50. In the present embodiment, the shortest distance L is four times or longer than the longest distance M, indicating that the approximate arc of the front fin 50 is a large arc. The substantially arc shape of the front end edge portion of the front fin 50 is desirably a large arc in which the difference between the shortest distance L and the longest distance M is 7 mm or more. That is, when the difference between the shortest distance L and the longest distance M is 7 mm or more, the effect of the present invention is great.

Therefore, in order to increase the chord length r of the front fin 50 in the vicinity of the end portion in the longitudinal direction (the length of the line segment that connects the front end to the rear end of the front fin 50 and is substantially orthogonal to the rotation shafts 51 and 52). In addition, the rear part is extended in the vicinity.
In FIG. 5, the extended portion is indicated by hatching. Such extension is performed on the end side from a portion where the chord length r is two-thirds or more with respect to the longest chord length (string length R in FIG. 5) in the substantially central portion of the front fin 50 in the longitudinal direction. Shall be. For example, in FIG. 5, below the center of the front fin 50, the chord length r <b> 1 of the portion that is the starting point of the extension is about 0.8 times the longest chord length R and is larger than two-thirds. In FIG. 5, the extension width of the extension portion toward the rear portion is 0 at the location that is the starting point of the extension, and increases toward the end portion side. When the predetermined width is reached, the predetermined width is maintained near the end portion.
In FIG. 5, the chord length r is greater than or equal to two-thirds of the longest chord length R in most of the front fins 50.

Here, the leakage prevention parts 26 and 27 provided in the inner wall of the ventilation path 25 are demonstrated.
As shown in FIG. 5 and the like, leak prevention portions 26 and 27 are formed in the vicinity of the air outlet 2 in the upper and lower inner walls of the ventilation path 25 (that is, the upper and lower inner walls of the retainer 20) along the short direction of the air outlet 2. As shown in FIG. 5, the upper leakage prevention portion 26 has a substantially trapezoidal shape in a side sectional view, and has an upstream inclined surface 26 </ b> A that is inclined inward so as to approach the downstream fin 80 toward the downstream side. The upstream inclined surface 26A is inclined about 120 ° with respect to the rear upper wall of the horizontal retainer 20. On the other hand, the lower leakage prevention portion 27 has a single wall shape and is inclined by about 70 ° with respect to the lower wall of the horizontal retainer 20 in a side sectional view. These leak preventing portions 26 and 27 are formed continuously along the short direction of the air outlet 2 with substantially the same side cross section.
Since both the upstream inclined surface 26A and the single-walled leak prevention portion 27 face the direction of the inner fin 80, the airflow in the ventilation direction passing through the vicinity of the inner wall of the ventilation path 25 along the short direction of the outlet 2 is It hits the upstream inclined surface 26A of the leakage prevention portion 26 and the leakage prevention portion 27 and is directed to the back fin 80 side. Therefore, it is possible to prevent the airflow passing through the vicinity of the inner wall of the air passage 25 along the short direction of the air outlet 2 from passing through the gap between the upper and lower inner walls of the air passage 25 and the inner fin 80, and the directivity of the inner fin 80. Can be increased.

Then, the structure of the blower outlet 2 of this embodiment is explained in full detail based on FIGS. 6 to 8 are front sectional views of the register 1, which are cut in three stages from the longitudinal center of the front fin 50 to the vicinity of the end. As described above, the front fin 50 extends in the vicinity of the end portion in the longitudinal direction to the rear side. However, as shown in FIGS. The chord length of the fin 13 is gradually shortened.
As shown in FIGS. 6 to 8, the left and right inner surfaces of the air outlet 2 are provided with left and right chevron strips 13, 14 on the left and right sides of the air outlet 2 immediately opposite to the front plate portion 11. Is formed. The chevron ridges 13 and the chevron ridges 14 are formed substantially symmetrically with respect to the center line in the short direction of the air outlet 2 and are continuously formed along the longitudinal opening edge 11 </ b> A of the air outlet 2. The chevron ridges 13 and 14 are formed as the inner surface shape of the side wall portion 15A of the frame portion 15 described above.
The chevron ridges 13 and 14 are composed of downstream inclined surfaces 13B and 14B and upstream inclined surfaces 13A and 14A. The upstream inclined surfaces 13 </ b> A and 14 </ b> A are inclined inward of the air outlet 2 so as to approach the front fin 50 toward the downstream side. Further, the downstream inclined surfaces 13B and 14B are inclined toward the downstream side so as to spread to the outside of the air outlet 2, that is, toward the front diagonal left and the front diagonal right.

6-8, the front end edge portion 50A of the front fin 50 is located slightly downstream from the downstream end portions of the upstream inclined surfaces 13A, 14A and hits the upstream inclined surfaces 13A, 14A. This makes it easy for the air flow having changed to hit the front fin 50.
6 to 8, the rear end edge portion of the front fin 50 is located at substantially the same position as the upstream end portions of the upstream inclined surfaces 13A and 14A or slightly upstream.

Here, as shown in FIGS. 6 to 8, the downstream inclined surfaces 13 </ b> B and 14 </ b> B have substantially the same width and inclination angle with respect to the front plate portion 11 at each position along the longitudinal direction of the front plate portion 11. This gives a neat beauty to the design on the front of the register 1 (see FIG. 1).
On the other hand, as shown in FIGS. 6 to 8, the inclination angle of the upstream inclined surfaces 13 </ b> A and 14 </ b> A with respect to the horizontal direction becomes larger as it goes from the central portion to the end portion in the longitudinal direction of the air outlet 2. The inclination angle of the upstream inclined surfaces 13A and 14A is 21.6 ° at the BB position of the longitudinal central portion of the blowout port 2 in FIG. 6, and as shown in FIG. The position is 22.7 ° at the CC position, and is 30.2 ° at the DD position on the further end side as shown in FIG.
In association with this, the widths of the upstream inclined surfaces 13A and 14A are shorter toward the end in the longitudinal direction of the air outlet 2.

  In this way, when the inclination angle of the upstream inclined surfaces 13A and 14A changes along the longitudinal direction of the air outlet 2, for example, the chord length of the front fin 50 is long as shown in FIG. Most of the flowing air flow easily flows along the surface of the front fin 50, and in the central portion in the longitudinal direction of the air outlet 2 where good directivity is easily obtained, even if the inclination angles of the upstream inclined surfaces 13A and 14A are reduced, The directivity of the fin 50 is not reduced, while the pressure loss of the airflow due to the high wind speed can be reduced.

On the other hand, as shown in FIG. 8, the upstream inclined surfaces 13 </ b> A and 14 </ b> A are disposed in the vicinity of the longitudinal end of the air outlet 2 where the chord length of the front fin 50 is short and the air flow hardly collects on the surface of the front fin 50 in the air outlet 2. Increase the tilt angle. As a result, the wind flowing in the ventilation direction of the ventilation path 25 hits the upstream inclined surfaces 13A and 14A and changes its direction more easily, making it easier to face the front fin 50 side. Thereby, more airflow will flow along the front fin 50 surface, and the directivity of the front fin 50 can be improved.
Moreover, since the wind speed is lower in the vicinity of the longitudinal end portion of the air outlet 2 than the central portion, even if the inclination angle of the upstream inclined surfaces 13A and 14A is increased, the pressure loss of the air flow does not increase so much.

Next, the notch shape of the back fin 80 will be described based on FIG. FIG. 9A is a plan view of the back fin 80 in a state where it is pivotally supported by the bearing portions 85, 85, and FIG. 10B is a perspective view seen from the right side. 9A and 9B show a state in which the above-described sector gear 87 is removed from the fourth back fin 80 from the top in order to make the notch shape easy to see.
As shown in FIGS. 9A and 9B, each of the inner fins 80 has a notch 81 at the front center portion in order to arrange the position of the rotation shaft 82 on the downstream side. Here, the notch portion 81 is a substantially central portion of the front portion of each back fin 80. The left and right rotations of the back fins 80 with respect to a straight line passing through the rotation shafts 51 and 52 of the front fin 50. This is because the shaft 82 is in a substantially symmetrical position. The shape of the notch portion 81 of each back fin 80 is substantially arc-shaped in order to escape the rotation of the rear portion of the front fin 80 and reduce the notch area to maintain the back fin 80 performance.
However, as shown in FIG. 9B, the cutout portion 81A of the fourth back fin 80 from the top is fitted with the sector gear 87, so that the rear central portion of the substantially arc-shaped portion is further convex. It is cut out. In addition, the rear center portion of the substantially arcuate portion further has two steps so that the notch portion 81B of the third back fin 80 from the top does not contact the tooth portion 62 attached to the rear side of the operation knob 60. It is cut out in a convex shape.

The size of the notch shape of each back fin 80 is determined by the performance (directivity) maintenance of each back fin 80 and the contact relationship with the rear portion of the front fin 80.
When the front center portion of each back fin 80 is cut out in this way, the distance from the air outlet 2 can be reduced by setting the position of the rotation shaft 82 of the back fin 80 to the downstream side.

Next, the register 100 according to the second embodiment will be described with reference to FIGS. The register 100 of the second embodiment has almost the same configuration as the register 1 of the first embodiment, and the same reference numerals are given to the same configuration, and description thereof is omitted.
As shown in FIGS. 5 and 10, the difference between the register 100 according to the second embodiment and the register 1 according to the first embodiment is the shape of the leakage prevention portions 126 and 127 provided on the upper and lower inner walls of the retainer 20.
Unlike the first embodiment, each of the leakage prevention portions 126 and 127 of the second embodiment has upstream inclined surfaces 126A and 127A that are inclined inward so as to approach the back fins 80 toward the downstream side.
The upstream inclined surfaces 126 </ b> A and 127 </ b> A both extend slightly upstream from each pivot shaft 82 of the back fin 80 to the rear side in the front-rear direction center of the upper and lower inner walls of the retainer 20. The inclination angle of the upstream inclined surface 126A with respect to the horizontal upper wall of the rear portion of the retainer 20 is about 160 °, and the inclination angle of the downstream inclined surface 127A with respect to the horizontal lower wall of the rear portion of the retainer 20 is about 145 °. Compared with the inclination angle of the leakage prevention walls 26 and 27 of the form, it is a gentle gentle slope. Therefore, the pressure loss of the air flow passing through the vicinity of the upper and lower walls of the ventilation path 25 is significantly smaller in the register 100 of the second embodiment than in the register 1 of the first embodiment.

  Also, the upstream inclined surfaces 126A and 127A according to the second embodiment are inclined inward toward the downstream side, unlike the leak prevention portion 27 according to the first embodiment that is inclined inward toward the upstream side. The air flow whose direction is changed by the inclined surfaces 126A and 127A can easily flow smoothly toward the back fin, and the directivity of the back fin 80 can be further improved. The inclination angle of the upstream inclined surfaces 126A and 127A is set to an angle that reduces the pressure loss of the air flow through the ventilation path 25 and maintains the directivity of the back fin 80, and is 10 ° to 50 ° (the horizontal angle of the rear portion of the retainer). A range of 130 ° to 170 ° with respect to the upper wall or the lower wall is preferable.

  The upper leakage prevention wall 126 has a downstream inclined surface 126B that is inclined obliquely upward toward the downstream side. Therefore, when the direction of the back fin 80 is changed to the upper side, the air flow is guided obliquely upward by the downstream inclined surface 126B. The lower leakage prevention portion 127 has a downstream inclined portion 127B inclined obliquely downward toward the downstream side, and when the direction of the back fin 80 is changed downward, the downstream inclined surface 127B causes the air flow to be inclined. Guide down. Since these downstream inclined surfaces 126B and 127B are inclined in a direction that spreads outside the air outlet 2, the direction of the wind passing through the vicinity of the air outlet 2 on the inner wall of the air passage 25 is not disturbed by the presence of the downstream inclined surfaces 126B and 127B.

Similar to the leakage prevention portions 26 and 27 of the first embodiment, the leakage prevention portions 126 and 127 of the second embodiment are also formed with substantially the same side cross section continuously along the short direction of the air outlet 2. The retainer 20 of the second embodiment has a shape in which the gentle slopes of the upstream inclined surfaces 126A and 127A can be clearly seen in a side view as shown in FIG.
As described above, the other configuration of the register 100 of the second embodiment is exactly the same as that of the register 1 of the first embodiment, and the second embodiment is formed by temporarily fitting the bezel 10 to the retainer 20 of FIG. A perspective view and a side view of the register 100 according to the embodiment are modified so that gentle slopes such as 126A, 127B, and 127A are provided on the upper and lower walls of the retainer 20 in the register 1 of FIGS.

  Here, the upstream inclined surfaces 13A and 14A function as the first inclined surfaces of the claims. The upstream inclined surfaces 26A, 126A, and 127A function as the second inclined surface of the claims.

As described above in detail, in the register 1 of the first embodiment and the register 100 of the second embodiment, the front opening is designed to have a substantially arc shape when viewed from the side, and therefore the longitudinal opening edge 11A of the air outlet 2 projects downstream. The front fin 50 is also formed in a substantially arc shape along the longitudinal opening edge 11A of the air outlet. For this reason, the chord length of the front fin 50 becomes shorter as it approaches the longitudinal direction end of the front fin 50. On the other hand, the inclination angle of the upstream inclined surfaces 13A and 14A of the mountain-shaped ridges 13 and 14 increases in the longitudinal direction of the air outlet 2 from the central portion toward the end.
Therefore, the directivity of the front fin 50 can be improved particularly in the vicinity of the end in the longitudinal direction of the air outlet 2 where the chord length of the front fin 50 is short. Further, in the vicinity of the longitudinal end portion of the air outlet 2 where the wind speed is relatively low, the pressure loss of the air flow does not increase so much even if the inclination angle of the upstream inclined surfaces 13A and 14A is increased.
Further, since the chord length of the front fin 50 becomes longer toward the longitudinal center portion of the air outlet 2, the pressure loss that tends to increase toward the longitudinal center portion of the air outlet 2 can be reduced.
From the above, in the register 1 of the first embodiment and the register 100 of the second embodiment, the directivity of the front fin 50 in the vicinity of the end in the longitudinal direction is increased while reducing the overall pressure loss of the airflow passing through the outlet 2. be able to.

  In the register 1 of the first embodiment and the register 100 of the second embodiment, the rear portion of the vicinity portion is extended so as to increase the chord length of the vicinity portion of the front end of the front fin 50 in the longitudinal direction. Therefore, the chord length in the vicinity of the end portion in the longitudinal direction of the front fin 50 is increased without affecting the design on the front surface of the register 1, 100, and the surface of the front fin 50 is in the vicinity of the end portion in the longitudinal direction. By directing more airflow, the directivity in the vicinity of the end portion in the longitudinal direction can be increased. Further, the rigidity of the entire front fin 50 is also improved.

  Further, in the register 1 of the first embodiment and the register 100 of the second embodiment, the rotary shafts 51 and 52 are arranged in the air outlet 2 on the upstream side of the front fin 50 in substantially the same direction as the short direction of the air outlet 2. A plurality of back fins 80 are provided, but since the front center portion of each of the back fins 80 is cut away, the position of the rotation shaft 82 of the back fin 80 is correspondingly set to the front end of the outlet 2. The directivity of the wind by the back fin 80 can be improved.

Further, the register 1 of the first embodiment and the register 100 of the second embodiment have the ventilation path 25 continuous with the air outlet 2, and the inner wall along the short direction of the air outlet 2 in the ventilation path 25 has a downstream side. Leakage preventing portions 26, 126, and 127 having upstream inclined surfaces 26A or 126A and 127A that are inclined inward so as to approach the rear fins 80 are formed.
Therefore, the air flow passing near the inner wall along the short direction of the air outlet 2 in the ventilation path 25 is bent toward the back fin 80 by the upstream inclined surfaces 26A, 126A, 127A of the leak prevention portions 26, 126, 127. For this reason, it is prevented that the airflow which passes along the inner wall vicinity of the ventilation path 2 along the transversal direction of the blower outlet 2 passes through the clearance between the inner fin 80 and the inner wall of the ventilation path 25, and more airflow is generated in the inner fin. It will flow along the surface of 80, and the directivity of the back fin 80 can further be improved.

In addition, this invention is not limited to the said embodiment, Of course, various improvement and deformation | transformation are possible within the range which does not deviate from the summary of this invention.
For example, the leakage prevention portions 26, 126, 127 formed on the upper and lower inner walls of the retainer 20 on the outlet side are formed in a substantially trapezoidal shape when viewed from the side cross section. There may be.
Further, the registers 1 and 100 of the embodiment are formed in a shape inclined upward and rearward in a side view, but it is needless to say that the present invention is not limited thereto.
Moreover, although the longitudinal direction of the blower outlet 2 faced the up-down direction in the register 1 of embodiment vertically, the longitudinal direction of the blower outlet 2 may face the left-right direction as horizontal placement.
Further, in the register 1 of the embodiment, a damper is not provided in the ventilation path 25, but it may be provided.

DESCRIPTION OF SYMBOLS 1,100 Resistor 2 Air outlet 11 Front board part 11A Longitudinal opening edge 13,14 Angle-shaped convex 13A, 14A The upstream inclined surface of an air outlet 20 Retainer 25 Ventilation path 26,27,126,127 Leak prevention part 26A, 126A, 127A Upstream inclined surface of ventilation path 50 Front fin 50A Front end edge portion 51, 52 of rotation fin
60 Operation knob 80 Back fin 81 Notch r String length R Longest chord length L Shortest distance between the straight line passing through the rotation axis of the front fin and the front edge of the front fin M Straight line passing through the rotation axis of the front fin and the front edge of the front fin Longest distance to

Claims (4)

A blower outlet that is long in the longitudinal direction, and a single front fin provided in the blower outlet along the longitudinal direction of the blower outlet, on the inner surface in the vicinity of the blower outlet, on the front fin toward the downstream side In the vehicular air conditioning register in which a mountain-shaped ridge having a first inclined surface inclined inward so as to approach is formed along the longitudinal opening edge of the outlet,
The longitudinal opening edge protrudes downstream and is formed in a substantially arc shape in a side view, and the front fin is also formed in a substantially arc shape along the longitudinal opening edge of the front fin,
The register according to claim 1, wherein an inclination angle of the first inclined surface of the mountain-shaped ridge is increased from a central portion toward an end portion in a longitudinal direction of the air outlet.   2. The register according to claim 1, wherein the rear portion of the front fin is extended so as to increase the chord length of the vicinity of the end portion in the longitudinal direction. In the air outlet, on the upstream side of the front fin, the rotating shaft has a plurality of back fins arranged in substantially the same direction as the short direction of the air outlet,
The register according to claim 1, wherein a front center portion of each of the back fins is cut away. An air passage that is continuous with the air outlet;
A leakage prevention portion having a second inclined surface inclined inward so as to approach the back fin toward the downstream side is formed on the inner wall along the short direction of the air outlet in the ventilation path. The register according to claim 3.

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