JP2019006167A - Air-conditioning register - Google Patents

Abstract

To provide a register which can suppress air leakage, such that wind escapes from a clearance between two flaps and a shaft, with a simple structure when said two flaps are positioned at a closed position.SOLUTION: A shut-down damper 7 comprising two flaps 7T, 7B, which are rotatably provided on a damper shaft which so extends as to traverse a ventilation path on an upstream side with respect to an air outlet of the ventilation path, and which respectively extend to an upstream side from the damper shaft, is provided, on an upstream side face of two flaps 7T, 7B at a closed position of closing the ventilation path, with a rib, which is perpendicular to said upstream side face, along an edge near the damper shaft. Thus, the rib is interfered with air stream concentrated to the damper shaft along the upstream side face of two flaps 7T, 7B at the closed position of closing the ventilation path, and consequently, to generate turbulent flow, thereby weakening wind which passes a space between two flaps 7T, 7B.SELECTED DRAWING: Figure 3

Description

The present invention relates to an air-conditioning register that blows out air-conditioning air sent from an air-conditioning device from an air outlet of a ventilation passage, and more specifically, a shut damper composed of two flaps that open and close the ventilation passage is provided. The present invention relates to an air conditioning register.

In the air-conditioning registers of Patent Documents 1 to 5 described later, a damper structure composed of two flaps is arranged in the ventilation path, and the ventilation path is opened and closed by the rotation of the two flaps, and the conditioned air directed toward the passenger A register for controlling the flow rate is disclosed. For example, in the register of Patent Document 1, in order to control the flow rate of the fluid passing through the flow path, the two flaps rotate about the same axis between the open position and the closed position, and the degree of opening and closing of the ventilation path Adjust.

In such a register, since the two flaps rotate on the same axis, there is a gap between the two flaps and the rotation shaft. However, it is inevitable to pass through this gap. In particular, when the angle of the upstream surface of the two flaps is 180 ° or less, the pressure of air concentrated in this gap becomes very large. As a result, wind leakage occurs and the flow rate of the wind cannot be accurately controlled. (Patent Documents 1 to 5).

EP1577131 (A1) publication EP0672551 (A1) publication Japanese Patent No. 4303976 JP 2017-43172 A DE102011054035A1 publication

The present invention has been made in view of the above circumstances, and is capable of rotating about a shaft provided in a ventilation path and having a shut damper composed of two flaps each extending upstream from the shaft. An object of the present invention is to provide a register that can suppress, with a simple structure, wind leakage in which wind escapes from a gap with a shaft when two flaps are in the closed position.

In order to solve the above-described problems, the present invention provides a tubular body that forms a ventilation path and an outlet for air-conditioning air, and an upstream side of the outlet of the ventilation path. A damper shaft extending across the road, a shut damper comprising two flaps each having a gap at least partially in the damper shaft and extending to the upstream side, and a position at which an occupant can operate And an adjustment mechanism that can control the rotation of the two flaps, and the flap has a plate-like main body that closes the ventilation path at the closed position that closes the ventilation path, and the damper. An interference rib provided on the upstream surface of the end portion of the main body portion facing the shaft through a gap and deflecting air flowing along the main body portion to the upstream side of the gap, Air conditioning The static is for the subject matter.

By providing an interference rib along the end of the main body that faces the damper shaft, when the interference rib is closed, the interference rib interferes with the wind concentrated on the damper shaft and deflects so that it is between the flap and the damper shaft. Suppresses wind leakage from the gap.

It is a perspective view which shows the external appearance of the downstream of the assembly of the register | resistor of this invention. It is a perspective view which shows the closed state of the upstream of the assembly of the register | resistor of this invention. It is a perspective view which shows the open state of the upstream of the assembly of the register | resistor of this invention. It is a front view which shows the closed state of the upstream of the assembly of the register | resistor of this invention. It is a front view which shows the closed state of the downstream of the assembly of the register | resistor of this invention. It is a slope view which shows the closed state of the upstream of the shut damper of the closed state of this invention. It is sectional drawing of the AA position which shows the closed state of the assembly of the register | resistor of this invention. Sectional drawing of the AA position which shows the shut damper of the closed state of this invention. It is C enlarged view which shows the interference rib of the shut damper of the closed state of this invention. Sectional drawing of the AA position which shows the shut damper of the open state of this invention. It is D enlarged drawing which shows the interference rib of the shut damper of the open state of this invention. It is a slope view which shows the structure of the register | resistor of this invention. It is a slope view which shows the structure of the transmission mechanism of this invention. It is a slope view which shows the structure of the conversion mechanism of this invention.

Hereinafter, embodiments according to the present invention will be described in detail. In the following embodiments, the “front”, “rear”, “left”, “right”, “up”, and “down” directions used in the description are used when the occupant sits facing the front of the vehicle. , Which coincides with the direction of “front”, “rear”, “left”, “right”, “up” and “down” of the occupant.

The air-conditioning register 1 according to the first embodiment of the present invention is shown in FIGS. In the passenger compartment, an instrument panel (not shown) is provided in front of the front seats (driver's seat and front passenger seat) of the vehicle, and air-conditioning registers are provided at the center, side, etc. in the lateral direction (vehicle width direction). Is incorporated. The main function of the air-conditioning register 1 is to change the direction of air-conditioning air sent from the air-conditioning apparatus and blown out from the air outlet 1E into the vehicle interior, and to adjust the amount of air-conditioning air blown out. is there. The adjustment of the blowout amount includes stopping the blowout.

As shown in FIGS. 1 to 5, 7, and 12, the air conditioning register 1 includes a tubular body 2, a downstream fin group 5, an upstream fin group 6, a shut damper 7, and the downstream fin group 5 and the upstream fin group. 6 and an operation knob 8 as an adjustment mechanism for the shut damper 7, a transmission shaft 9 for transmitting the operation of the operation knob 8 to a corresponding structure, and a drive mechanism 10 for changing the rotation of the transmission shaft 9 to tilting of the shut damper 7. I have. Next, the structure of each part which comprises the air-conditioning register | resistor 1 is demonstrated.
Tubular body 2:

As shown in FIGS. 1 to 4, 7, and 12, the tubular body 2 forming the ventilation path 1 </ b> V includes an air duct (not shown) of the air conditioner and an opening (not shown) provided in the instrument panel. From the tubular body 2B, the bezel 4, the left support piece 3L, the upper support piece 3T, the right support piece 3R, and the lower support piece 3B sandwiched between the tubular body 2B and the bezel. Become.

The tubular body 2B, the bezel 4, and the tubular body 2 formed by assembling the left supporting piece 3L, the upper supporting piece 3T, the right supporting piece 3R, and the lower supporting piece 3B sandwiched between the tubular body 2B and the bezel. The internal space constitutes a ventilation path 1V for air for air conditioning (see FIG. 7). In this specification, “upstream” and “downstream” are based on the flow direction F of air for air conditioning.

The upper support piece 3T and the lower support piece 3B include an upstream fin bearing 2y corresponding to the upstream fin shaft 6s of the upstream fin.

The left support piece 3L and the right support piece 3R include a downstream fin bearing 2x corresponding to the downstream fin shaft 5s.

The bezel 4 is a member constituting the most downstream portion of the tubular body 2. The bezel 4 is locked to locking protrusions 2e provided at corresponding positions on the upper and lower sides of the tubular body 2B in locking holes 4h provided at a plurality of positions on the upper and lower positions. Thus, the left support piece 3L, the upper support piece 3T, the right support piece 3R and the lower support piece 3B are sandwiched and connected to the tubular body 2B. As shown in FIGS. 1, 5, and 7, in the bezel 4, an air outlet 1 </ b> E through which air for air conditioning is blown out is formed at a downstream end of the ventilation path 1 </ b> V. As shown in FIG. 1, the portion around the outlet 1 </ b> E on the downstream end surface of the bezel 4 constitutes the design surface of the air-conditioning register 1.

The tubular body 2 penetrates in the front-rear direction by assembling the tubular body body 2B and the bezel 4 with the left support piece 3L, the upper support piece 3T, the right support piece 3R and the lower support piece 3B interposed therebetween, and the left-right direction. The ventilation path 1V whose dimension is larger than the dimension in the vertical direction is formed. In addition, in order to enhance the airtightness in a state where the shut damper is in the closed position, the ventilation path 1V has a substantially cone-shaped inclination between the upstream portion and the downstream portion, the cross section of which decreases in accordance with the flow direction of the conditioned air. It is connected from the part 2t. In order to dispose downstream fins, which will be described later, in the ventilation path 1V, the upper support piece 3T and the lower support piece 3B on the downstream end are provided with tilting spaces TS that expand vertically, respectively, Provide a tiltable space.
Downstream fin group 5:

As shown in FIGS. 1, 5, 7, and 12, the downstream fin group 5 includes three downstream fins extending in the direction along the long side (vehicle width direction) in the vicinity of the air outlet 1E. The three downstream fins 51, 52, 53 of the downstream fin group 5 are each formed in a flat and slender shape having a predetermined width in the direction along the ventilation path 1V, and the direction along the short side (substantially up and down direction). Are arranged apart from each other.

Here, in order to distinguish the three downstream fins, those located at the upper and lower ends in the arrangement direction (vertical direction) are called downstream sub-fins 51 and 52, and those located in the center are called downstream main fins 53. And The downstream sub fins 51 and 52 are disposed in the vicinity of the tilting space TS that expands correspondingly. The downstream main fin 53 is disposed in the middle between the downstream sub-fins 51 and 52. An operation knob 8 is provided at an intermediate portion in the direction along the long side of the downstream main fin 53 (vehicle width direction) (see FIG. 1).

As shown in FIG. 12, each of the downstream sub-fins 51 and 52 and the downstream main fin 53 is both end faces in the direction along the long side thereof, and the downstream fins in the direction along the ventilation path 1V are respectively downstream fins. A shaft 5s is provided. These downstream fin shafts 5s are rotatably engaged with downstream fin bearings 2x provided on the left support piece 3L and the right support piece 3R of the tubular body 2. Therefore, each of the downstream sub fins 51 and 52 and the downstream main fin 53 can rotate around the downstream fin shaft 5s.

The downstream edge of each downstream fin 51, 52, 53 extends linearly in the left-right direction along the downstream fin axis 5s. In each downstream fin, a downstream fin connecting pin 5p extending in parallel to the downstream fin shaft 5s is provided at a location biased upstream from one downstream fin shaft 5s. These downstream fin connection pins 5p are connected to a downstream connection rod 54 extending substantially in the vertical direction via a downstream engagement hole 5h. Thereby, the downstream link mechanism which tilts so that the downstream fin group 5 may become the same inclination is comprised.

The first downstream sub-fin 51 has a “<” shape as a whole. Similarly, the second downstream sub-fin 52 may have a “<” shape. In this way, when the corresponding fin is tilted and the upstream end is separated from the retainer, the portion extending to the tilt space is connected to the retainer main body upstream of the tilt space, and the upstream side of the fin and the retainer By blocking the corner and avoiding the generation of vortex flow in the corner, air can be smoothly guided into the passenger compartment to reduce pressure loss.

As shown in FIG. 1, FIG. 5, FIG. 7 and FIG. 12, the downstream main fin 53 is composed of two upper and lower pieces 53f, which are connected at both left and right ends, with two connecting ribs 53r at the center. Concatenated and configured. Thus, a gap 53g penetrating from the upstream end to the downstream end is integrally formed at the central portion of the downstream main fin 53 in the vertical direction.

A central portion in the left-right direction of the two pieces 53f of the downstream main fin 53 has a recess 53c that is recessed from the upstream side to the downstream end in a range approximately corresponding to the sliding range of the operation knob 8. Yes. The two connecting ribs 53r define the left and right ends of the left / right slide range of the operation knob 8.
Upstream fin group 6:

As shown in FIG. 1, the upstream fin group 6 includes a plurality of upstream fins 61 arranged in the ventilation path 1V on the upstream side of the downstream fin group 5 and on the downstream side of the inclined portion 2t. Each upstream fin 61 is used in order to change the angle of the left-right direction of the air which blows off from the blower outlet 1E. Each upstream fin 61 is configured by a plate-like body extending in the up-down direction and the air-conditioning air flow direction F in the ventilation path 1V. The plurality of upstream fins are disposed in a state of being spaced substantially parallel to each other at substantially equal intervals in the left-right direction.

An upstream fin shaft 6s extending in the same direction is provided on both end surfaces of each upstream fin 61 in the vertical direction. Each upstream fin shaft 6s is rotatably engaged with an upstream fin bearing 2y provided on the upper support piece 3T and the lower support piece 3B of the tubular body 2. (See FIGS. 1, 2, 5, and 12).

For each upstream fin 61, a rectangular notch 6c and an upstream fin connecting pin 6p are provided. Each notch 6 c is located downstream of each upstream fin 61 in the air flow direction F. Moreover, each notch 6c is located in the center part for every upstream fin 61 about the up-down direction. Each of the upstream fin connecting pins 6p protrudes upward from a position on the lower surface of the notch 6c, which is biased downstream from the upstream fin shaft 6s. The upstream fin connection pin 6p for each upstream fin 61 is connected to an upstream connection rod 62 extending in the left-right direction via an upstream engagement hole 6h. Thus, an upstream link mechanism is configured to tilt the upstream fin shaft 6s supported by the upstream upstream fin bearing 2y in a synchronized state so that the upstream fin group 6 has the same inclination.
Shut damper 7:

As shown in FIGS. 7 to 12 and 14, the shut damper 7 is provided on the upstream side of the upstream fin group 6 in the tubular body 2 at a position approximately corresponding to the inclined portion 2 t, and the amount of ventilation is To open and close the ventilation path 1V. The shut damper 7 is supported by disposing a damper shaft 7s on a shut damper bearing 2z of the tubular body 2B provided at a central position in the vertical direction substantially downstream of the inclined portion 2t. The shut damper 7 is composed of two flaps 7T and 7B and a damper shaft 7s at the downstream edge thereof.

The shut damper 7 includes two flaps 7T and 7B and a damper shaft 7s divided into four. Each of the flaps 7T and 7B is formed integrally with two divided damper shafts 7s. Concave portions 7c or convex portions 7p are formed at both axial ends of each of the divided damper shafts. The divided damper shaft 7s functions as one damper shaft 7s when two flaps are combined by engaging the concave portion 7c and the convex portion 7p.

As shown in FIGS. 7 to 11, a groove portion 7 t is provided along the vehicle width direction in a portion other than the convex portion 7 p and the concave portion 7 c on the downstream side of the damper shaft 7 s, and the thickness of the damper shaft 7 s. Is substantially equal to the thickness of the two flaps 7T and 7B.

As shown in FIG. 9, on the upstream side surface of the lower flap 7B when the shut damper 7 is in the closed position, the wind F ′ toward the gap 7b with the other flap along the downstream edge is deflected upstream. Interference ribs 7r having guide surfaces 7x are provided. The interference rib 7r is provided such that the angle between the guide surface 7x and the upstream side surface of the flap is 15 ° to 90 °, and the height is 2 mm to 3 mm. Note that interference ribs having the same shape are also provided at the corners of the damper shaft 7s and the upstream side surface of the upper flap 7T to suppress the generation of vortex flow at the corners. As a result, the interference rib 7r is provided over the entire length of both the flaps 7T and 7B.

Further, a driven drive arm 7a belonging to the drive mechanism 10 described later is provided on the downstream side of the flaps 7T and 7B to which it belongs.

The flaps 7T and 7B are assembled like a hinge so that the drive arm 7a is held on the downstream side, and the damper shaft 7s including the convex portions 7p at both ends is supported by the tubular shut damper bearing 2z. The assembly of the shut damper 7 is completed.

The two flaps 7T and 7B are each provided with a soft seal portion 7g along an edge other than the downstream edge (that is, an outer edge of the shut damper 7). The flap seal part 7g is an open position O where the shut damper 7 opens the ventilation path, the opposing surface is a flat surface extending from the opposing surface of the flap body, and the tip has a substantially semicircular cross section. (See FIG. 10). As a result of the test, the pressure loss in the open position of the shut damper of the present invention is reduced by about 20% as compared with the prior art including the soft seal extended from the opposite side of the opposite side.

As shown in FIGS. 6 to 11, both flaps 7 </ b> T and 7 </ b> B of the shut damper 7 can tilt between the open position O and the closed position C. In the open position O, both flaps 7T and 7B are substantially parallel to the flow direction F of the air for air conditioning, as shown in FIGS. 10 and 11, and open the ventilation path 1V at the maximum. Both flaps 7T and 7B are in the closed position C, as shown in FIG. 6, FIG. 7, FIG. 8, and FIG. Is set larger in the range of 0 ° to + 10 ° than the inclination angle of the inclined portion 2t of the upper and lower walls. That is, both flaps at the closed position C are seal portions 7g having end portions with a semicircular cross section, and are in contact with the corresponding inclined portions 2t substantially in parallel, thereby tightly closing the ventilation path 1V.
Operation knob 8:

As shown in FIGS. 1, 5, and 12, the operation knob 8 is a member that is operated by a passenger's finger when the downstream fin group 5, the upstream fin group 6, and the shut damper 7 are tilted. The operation knob 8 is rotatable relative to the knob body 8b and a knob body 8b mounted so as to be slidable in the left-right direction with respect to the central portion of the gap 53g defined by the connecting rib 53r. A rotating portion 8r to be inserted is provided.

The rotating portion 8r includes a knob portion 8k and a knob shaft 8s. The knob 8k is rotatably attached to the knob body 8b. With respect to the knob body 8b, the knob 8k is allowed to rotate between a closed position and an open position after rotating 90 ° from the closed position. The knob shaft 8s extends from the center of the upstream side surface of the knob 8k to the upstream side so that the center axis matches the center axis of the knob 8k, and is rotatable with respect to the knob body 8b. Inserted and assembled.

The upstream end of the knob shaft 8s is connected to the downstream universal joint UJ1, and the rotation of the knob 8k is transmitted to the transmission shaft 9 described later by the downstream universal joint UJ1.
Transmission shaft 9:

Further, as shown in FIGS. 12 and 13, the following configuration is adopted to transmit the movement of the operation knob 8 to the downstream fin group 5, the upstream fin group 6 and the shut damper 7 and tilt them. ing. A transmission shaft 9 extending along the flow direction F of the air for air conditioning is transmitted between the upstream connecting rods 62 between the plurality of upstream fins 61 adjacent to each other at the central portion in the left-right direction (a pair of central upstream fins). It arrange | positions in the state which penetrates the hole 62E.

A spherical engagement portion 9 e is formed at the upstream end portion of the transmission shaft 9. The engaging portion 9e is formed with an upstream transmission pin 9p that protrudes in the radial direction and in opposite directions. On the other hand, at the intermediate portion in the length direction of the transmission shaft 9 and closer to the downstream end, it is larger than the diameter of the transmission shaft 9 and slightly larger than the width in the left-right direction of the transmission hole 62E of the upstream connecting rod 62 A spherical transmitter 9t having a small diameter is formed.

The engaging portion 9e is slidably engaged with the engaging recess 10e in a state where the outer surface thereof is in contact with the inner surface of a cylindrical base portion 10B having the engaging recess 10e of the drive mechanism 10 described later. ing. Both upstream transmission pins 9p are engaged with the corresponding engaging grooves 10c of the base. Then, the engaging recess 10e (including the engaging groove portion 10c) and the engaging portion 9e (including the upstream transmission pin 9p) are connected to drive the drive mechanism 10 and the transmission shaft 9 so that the upstream universal joint UJ2 is configured. To do. In this upstream universal joint UJ2, the transmission shaft 9 can swing with respect to the engaging recess 10e with a spherical engaging portion 9e as a fulcrum. Further, the transmission shaft 9 can transmit the rotation of the transmission shaft 9 to the cylindrical base portion 10B on the drive side by both upstream transmission pins 9p of the engaging portion 9e and the engaging groove portion 10c of the engaging concave portion 10e. Further, each upstream transmission pin 9p can slide in the air-conditioning air flow direction F and the opposite direction along the corresponding engagement groove 10c.

The downstream end of the transmission shaft 9 is drivingly connected to the upstream end of the knob shaft 8s by a downstream universal joint UJ1.
Drive mechanism 10:

As shown in FIG. 14, the engaging portion 9 e at the upstream end of the transmission shaft 9 is drivingly connected to both flaps 7 T and 7 B of the shut damper 7 via the driving mechanism 10.

The drive mechanism 10 has a cylindrical base portion 10 </ b> B mounted rotatably by a cylindrical support portion 2 s supported on the wall of the tubular body 2. The upstream end of the cylindrical base 10B has a guide groove 10g on the outer peripheral surface with which the end of the drive arm 7a is slidably engaged. The guide groove 10g is formed over the entire circumference on the outer surface of the cylindrical base portion 10B and has an endless shape. The guide groove 10g is provided so that each of the flaps 7T and 7B can tilt between the open position and the closed position according to the rotation of the transmission shaft through the end of the drive arm 7a.

As shown in FIG. 14, a connecting cylinder 10P is used to connect the cylindrical base portion 10B and the flaps 7T and 7B. The connecting cylinder 10P is provided with a hole 10h as a bearing in the left-right direction, and supports the corresponding protrusion 7p of the damper shaft 7s. Further, since the end of the drive arm 7a can come into contact with the guide groove 10g of the cylindrical base 10B inserted into the connecting cylinder, the connecting cylinder 10P is provided with a cut 10n in the vertical direction.
Transmission mechanism TM:

As shown in FIG. 13, the portion of the transmission shaft 9 located between the central upstream fins (transmitter 9t) and the portion of the upstream connecting rod 62 located between the central upstream fins (transmission 62t). Is provided with a transmission mechanism TM having the following two functions. The first function is to transmit the swing in the left-right direction about the engaging portion 9e of the transmission shaft 9 accompanying the slide of the operation knob 8 to the upstream fin 61. The second function is to block the transmission of the vertical swing about the engaging portion of the transmission shaft accompanying the operation of the operation knob 8 for tilting the downstream fin group 5 from being transmitted to the upstream fin 61. It is to be.

As shown in FIG. 12, a transmission portion 62t having a transmission hole 62E is formed integrally with a portion of the upstream connecting rod 62 positioned between the upstream fins at the center. Further, on both sides of the transmission portion 62t having the transmission hole 62E, a left rod arm 62l and a right rod arm 62r having an upstream engagement hole 6h that engages with the upstream fin connection pin 6p are provided.

The transmission hole 62E is formed in a vertically long slot shape. This is because the inner wall surface of the transmission hole 62E in the transmission portion 62t is oscillated only when the transmission shaft 9 swings in the left-right direction with the upstream end as a fulcrum as the operation knob 8 slides. Because it is to convey to.

A transmission mechanism part TM is configured by the transmission part 62t provided on the upstream connecting rod 62 and having the transmission hole 62E and the transmission element 9t on the transmission shaft.
Conversion mechanism CM:

As shown in FIGS. 13 and 14, in the conversion mechanism CM, the rotary operation of the knob rotating portion 8 r is performed by the shut damper 7 regardless of whether the operation knob 8 is in a sliding state or in a tilted state. In order to switch to the tilting operation of the flaps 7T and 7B, the following structure is provided.

The downstream universal joint UJ1 connects the upstream end of the knob shaft 8s and the downstream end of the transmission shaft 9, and even if the relative angle between the knob shaft 8s and the transmission shaft 9 is changed within a certain range, the knob shaft 8s It is ensured that the rotational motion can be transmitted to the transmission shaft 9.

Even when the upstream universal joint UJ2 connects the upstream end of the transmission shaft 9 and the cylindrical base 10B of the drive structure, the relative angle between the transmission shaft 9 and the cylindrical base 10B of the drive mechanism 10 is changed within a certain range. The rotation operation of the transmission shaft 9 is guaranteed to be transmitted to the cylindrical base portion 10B of the drive mechanism 10.

In the upstream universal joint UJ2, an engagement recess 10e of the cylindrical base portion 10B of the drive mechanism 10 is provided in the engagement recess 10e, and is parallel to the central axis of the cylindrical base portion in the air flow direction F. The transmission shaft 9 is connected to the cylindrical base portion 10B by the engagement of the engagement groove portion 10c extending along the engagement portion 9e at the upstream end portion of the transmission shaft and the upstream transmission pin 9p provided in the engagement portion 9e. On the other hand, it can move along the flow direction F of the air-conditioning air, so that the relative angle between the knob shaft 8s and the transmission shaft 9 and the relative angle between the transmission shaft 9 and the cylindrical base portion 10B can be changed.

A cylindrical base portion 10B (including an engagement recess portion 10e and an engagement groove portion 10c) having an outer surface of the drive arm 7a and the guide groove 10g with which an end portion of the drive arm 7a is slidably engaged. And the rotation mechanism of the knob rotating portion 8r by the switching mechanism CM including the transmission shaft 9 (including the engaging portion 9e and the upstream transmission pin 9p), whether the operation knob 8 is slid or tilted. Can be switched to the tilting operation of both the flaps 7T and 7B of the shut damper 7.
assembly:

As described above, the two flaps 7T and 7B supported in the middle by the connecting cylinder 10P and engaged by the respective convex portions 7p and the concave portions 7c are assembled like a hinge and divided into two parts. The damper shaft 7s is integrally formed, and the soft damper 7g provided on the outer periphery and the shut damper 7 having the interference rib 7r are formed.

The upstream fin connecting pin 6p and the upstream engaging hole 6h of the upstream connecting rod 62 are engaged with each other so that the transmission portion 62t of the upstream connecting rod 62 is disposed between the two central plates of the upstream fin. The fins 61 are connected to constitute the upstream fin group 6.

The operation knob 8 is assembled with the side opening and the central portion of the piece 53f of the downstream main fin 53 fitted to each other so that the knob body 8b can slide left and right, and the knob rotating portion 8r is assembled from the downstream direction. The downstream sub-fins 51 and 52 are connected by the downstream engaging hole 5h of the downstream connecting rod 54 and the downstream fin connecting pin 5p of the downstream fin to constitute the downstream fin group 5.

The cylindrical base portion 10B is inserted into the support portion 2s with the base portion downstream and passes through the guide groove 10g, the upstream drive arm 7a of the shut damper 7, and the upper and lower cuts 10n of the connecting cylinder 10P. And the damper shaft 7s is supported by the shut damper bearing 2z, the upstream fin group 6 is sandwiched between the upper support piece 3T and the lower support piece 3B, and the upstream fin shaft 6s is correspondingly fitted. Supported by the upstream fin bearing 2y, the downstream fin group 5 is sandwiched between the left support piece 3L and the right support piece 3R, and the downstream fin shaft 5s is supported by the corresponding downstream fin bearing 2x, and the transmission shaft The upper support piece 3T, the lower support piece 3B, and the left support piece 9 are connected to the knob shaft 8s and the cylindrical base portion 10B by the downstream universal joint UJ1 and the upstream universal joint UJ2, respectively. The holding piece 3L and the right support piece 3R are sequentially inserted into the corresponding positions of the tubular body main body 2B, fitted together, and the bezel 4 is assembled from the downstream side of the tubular body main body 2B. By connecting with the engaging holes 4h of the bezel 4, the assembly of the air-conditioning register 1 is completed.
test:

In order to confirm the effect of the present invention, the following tests were conducted.
Test conditions: The input power to the blower is kept constant, and the pressure difference between the upstream side and the downstream side of the shut damper is maintained at 392 Pa. The damper was installed in the closing direction to close the damper, and the amount of air leakage between the two flaps was measured.
Example: Example shown in the drawings. Angle of guide surface of interference rib: 15 °, same height: 2 mm.
Comparative example: Same as the example except that no interference rib is provided.
Test results: air leakage amount embodiment 9.6 m ³ / h, Comparative Example was 11.9 m ³ / h.

DESCRIPTION OF SYMBOLS 1 Air-conditioning register 1V Ventilation path 1E Air outlet 2 Tubular body 2B Tubular body main body 2t Inclination part 2s Support part 2e Locking protrusion 3L Left support piece 3R Right support piece 3T Upper support piece 3B Lower support piece TS Inclination space 4 Bezel 4h Stop hole 5 Downstream fin group 51 First downstream sub fin 52 Second downstream sub fin 53 Downstream main fin 53f Piece 53c Recess 53r Connection rib 53g Gap 54 Downstream connection rod 5s Downstream fin shaft 5p Downstream fin connection pin 5h Downstream engagement hole 6 Upstream fin group 61 Upstream fin 62 Upstream connecting rod 62E Transmission hole 62t Transmission portion 62l Left rod arm 62r Right rod arm 6s Upstream fin shaft 6p Upstream fin connection pin 6c Notch 6h Upstream engagement hole 7 Shut damper 7T Upper flap 7B Below Flap 7b clearance 7r interference rib 7x guide surface 7g seal part 7p convex part 7c Recess 7s Damper shaft 7a Drive arm 8 Operation knob (adjustment mechanism)
8b Knob body 8r Rotating part 8k Knob part 8s Knob shaft 9 Transmission shaft 9e Engaging part 9p Upstream transmission pin 9t Transmitter 10 Drive mechanism 10B Cylindrical base part 10e Engaging recess part 10c Engaging groove part 10g Guide groove 10P Connecting cylinder 10n Cut

F Air flow direction CM Conversion mechanism TM Transmission mechanism TS Tilt space

Claims (3)

A tubular body that forms a ventilation path and a blowout opening for air conditioning air, a damper shaft that extends across the ventilation path upstream from the blowout opening of the ventilation path,
A shut damper comprising two flaps each having a clearance at least partially in the damper shaft and provided rotatably and extending upstream,
An adjustment mechanism that is arranged at a position where an occupant can operate and can control the rotation of the two flaps;
With
The flap has a plate-like main body for closing the ventilation path at a closed position for closing the ventilation path;
An interference rib is provided on the upstream surface of the end portion of the main body portion facing the damper shaft via a gap, and deflects air flowing along the main body portion to the upstream side of the gap. And air conditioning register. In the air-conditioning register according to claim 1,
The flap is provided along an edge other than the downstream edge of the main body part, and has a soft seal part that can come into contact with the wall of the tubular body,
The seal portion is an open position that opens the ventilation path,
The facing surface becomes a plane extended from the facing surface of the main body,
An air-conditioning register having a tip having a substantially semicircular cross section. In the air-conditioning register according to any one of claims 1 and 2,
The damper shaft is at least partially formed integrally with one main body portion, and the interference rib is provided on at least the other main body portion facing the partial shaft. register.

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