JP2015137018A - Air-conditioning register - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the sealing property of a ventilation passage when a shut damper is tilted to a close position.SOLUTION: A shut damper 30 is tilted between an open position at which the shut damper largely opens a ventilation passage 11 of a retainer 10, and a close position at which the shut damper abuts on both opposite wall portions 13 and 14 of the retainer 10 at a pair of end edge portions 31 and 32 to block the ventilation passage 11. A hole 16 of a coupling wall portion 15 with which a supporting shaft 35 of the shut damper 30 is engaged is extended in a circulating direction of conditioning air A1. An elastic portion 42 for energizing the supporting shaft 35 to one side (a downstream side) in the extending direction of the hole 16 is provided. At a position immediately before closing which is close to the close position, the shut dumper 30 abuts on the opposite wall portion 13 only one (the end edge portion 31) of both end edge portions 31 and 32. When tilting from the position immediately before closing to the closed position, the supporting shaft 35 is moved to an upstream side in the hole 16 against the elastic portion 42, thereby tilting the shut damper 30 to the upstream side from the end edge portion 31 to make the end edge portion 32 abut on the opposite wall portion 14.

Description

  The present invention relates to an air-conditioning register provided with a shut damper that opens and closes an air passage in a retainer.

  For example, an air conditioning register that blows out air-conditioning air sent from an air-conditioning device from an air outlet of a ventilation passage in the retainer is incorporated in an instrument panel of the vehicle. In this air-conditioning register, the direction of the air-conditioning air blown out from the air outlet is adjusted by tilting the fins arranged upstream of the air outlet in the retainer. In addition, a shut damper is disposed upstream of the fins of the ventilation path in the retainer. With the shaft as a fulcrum, the shut damper is tilted between an open position where the ventilation path is largely opened and a closed position where the ventilation path is closed.

In the air-conditioning register having the above-described configuration, various contrivances have been made to improve the sealing performance when the ventilation path is closed by the shut damper.
For example, the shut damper described in Patent Document 1 is composed of two parts, a damper main body and a seal body. The damper main body is formed in a plate shape from a hard material. The seal body is formed in a ring shape from a soft material such as urethane, and is attached to the periphery of the damper main body. When the ventilation path is closed by the shut damper, the seal body comes into contact with the inner wall surface of the retainer and restricts the flow of air-conditioning air downstream from the shut damper. However, since the shut damper has a two-part configuration of a damper main body and a seal body, the parts cost and assembly man-hours of the seal body increase, leading to an increase in manufacturing cost.

  Thus, various shut dampers in which a seal body is formed integrally with a damper main body have been proposed (see, for example, Patent Document 2). In this case, since the shut damper is composed of a single component, the manufacturing cost can be reduced.

Utility Model Registration No. 2570855 JP 2013-39924 A

  However, when the shut damper is tilted to the closed position, there may be a case where the pair of edge portions of the shut damper cannot be brought into contact with the inner wall surface of the retainer due to variations in dimensions of the shut damper and the retainer. . In this case, air-conditioning air leaks from a gap formed between one end edge of the shut damper and the inner wall surface of the retainer.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide an air-conditioning register that can improve the airtightness of the ventilation path when the shut damper is tilted to the closed position. There is.

  An air conditioning register that solves the above problems includes a pair of opposing wall portions and a pair of connecting wall portions that connect the opposing side edge portions of the opposing wall portions and have holes, and have an internal space. A retainer serving as a ventilation path for air-conditioning air, and a shut damper disposed in the ventilation path and engaged with the hole by a support shaft, the shut damper being parallel or parallel to the flow direction of the air-conditioning air Between the open position that opens the ventilation path and closes the flow direction and closes the ventilation path by contacting the opposing wall portions at a pair of edge portions. The air conditioning register is tilted at a position immediately before closing close to the closing position, and is configured such that only one of both end edges of the shut damper contacts the opposing wall portion, and the hole is By a long hole extending in the flow direction And an elastic portion for urging the support shaft in one of the extending directions of the hole is further provided, and the support shaft is opposed to the elastic portion when tilting from the position immediately before closing to the closed position. Then, by moving in the hole, the shut damper is tilted with the one end edge as a fulcrum, and the other end is brought into contact with the opposing wall.

  According to said structure, a shut damper becomes a state parallel or near parallel with the distribution direction of the air for air conditioning in an open position, and opens a ventilation path large. Therefore, the air for air conditioning can flow downstream from the shut damper.

  When the shut damper is tilted from the open position to the closed position with the support shaft as a fulcrum, the shut damper intersects the flow direction. As the tilt of the shut damper progresses, the tilt angle of the shut damper with respect to the flow direction increases. Then, when the shut damper is tilted to the position immediately before closing close to the closing position, only one of the both end edges of the shut damper comes into contact with the opposing wall portion of the retainer. However, when the shut damper is tilted from the position immediately before closing to the closing position, the support shaft is moved in the hole against the elastic portion. The shut damper is tilted with one end edge serving as a fulcrum, and the other end is brought into contact with the opposing wall. That is, when the shut damper tilts from the position immediately before closing to the closing position, the tilting fulcrum is switched from the support shaft to one end edge. Then, the gap between the other end edge portion and the opposing wall portion that existed at the position immediately before closing is absorbed when the shut damper is tilted toward the closing position, and this gap becomes small at the closing position. The gap is absorbed even if it occurs due to variations in the dimensions of the shut damper and retainer. The air-conditioning air upstream of the shut damper is restricted from flowing downstream of the shut damper through the gaps between the end edges and the opposing wall.

In addition, rattling of the support shaft in the hole is suppressed by the support shaft being urged by the elastic portion.
In the air conditioning register, the elastic portion is provided so as to be able to rotate integrally with the support shaft, and a support wall that comes into contact with the elastic portion in an elastically deformed state is provided at a location near the hole in the connecting wall portion. It is preferable to be provided.

  According to the above configuration, when the shut damper is tilted, the elastic portion is rotated integrally with the shaft of the shut damper. The elastic portion slidably contacts the support wall while being elastically deformed as the support shaft rotates, thereby biasing the support shaft in one direction in which the hole extends.

  When the shut damper is tilted from the position immediately before closing to the closing position, the shaft is moved in the hole against the urging force of the elastic portion, so that the shut damper tilts with one end edge as a fulcrum. Be made. In the closed position, not only one edge but also the other edge is brought into contact with the opposing wall.

  In the air conditioning register, a restriction wall is provided at a position facing the support wall across the hole in the connection wall portion, and the elastic portion and the support portion are provided between the support shaft and the elastic portion. The shaft is rotated integrally with the shaft, and is pressed against the restriction wall by the elastic portion at the open position of the shut damper, and at the tilt position different from the open position of the shut damper, the support wall and the restriction Of the walls, it is preferable that a cam that is spaced apart from the main body wall protruding from the connecting wall is provided.

According to said structure, in the open position of a shut damper, the cam urged | biased by the elastic part is pressed on a control wall. This pressing restricts the movement of the cam.
When the shut damper is tilted in a region different from the open position, the cam is rotated integrally with the shaft of the shut damper together with the elastic portion. The elastic portion slidably contacts the support wall while being elastically deformed as the support shaft rotates, thereby biasing the support shaft in one direction in which the hole extends. At this time, since the cam is separated from the main body wall portions of the support wall and the restriction wall, the operation of the elastic portion is hardly hindered.

  In the air-conditioning register, the elastic portion includes a spring attached to the connecting wall portion, and directly or indirectly abuts on the support shaft in an elastically deformed state so that the support shaft extends in the direction of the hole. It is preferable to always urge one of these.

  According to said structure, it consists of the spring attached to the connection wall part, and the elastic part which contact | abutted directly or indirectly to the spindle in the elastically deformed state is the direction in which a hole extends the spindle by its own restoring force. Always energize one of these. When the shut damper is tilted from the position immediately before closing to the closed position, the support shaft is moved in the hole against the elastic portion, so that the shut damper is tilted with one end edge as a fulcrum. The other edge is brought into contact with the opposing wall.

  In the air-conditioning register, the support shaft is located in a central portion between the opposing wall portions, and the shut damper is configured to be separated from the support shaft at an edge portion that is in contact with the opposing wall portion at a position immediately before the closing. Is preferably set to be longer than the length from the support shaft of the end edge that is not in contact with the opposing wall at the position immediately before closing.

  According to the above configuration, when the shut damper is tilted with the support shaft as a fulcrum, the amount by which both end edges turn around the support shaft varies depending on the length from the support shaft to the end edge. As for the end edge part, the longer one from the support shaft turns more than the shorter one. Therefore, under the condition that the support shaft is located in the center between the opposing wall portions, when the shut damper is tilted to the position immediately before closing, the end portion on the longer side from the support shaft Comes into contact with the opposing wall portion, and the end edge portion on the short side does not come into contact with the opposing wall portion.

  According to the air conditioning register, it is possible to improve the airtightness of the ventilation path when the shut damper is tilted to the closed position.

It is a figure which shows 1st Embodiment of the register | resistor for air conditioning, and is a perspective view of the register | resistor for air conditioning in which the shut damper was tilted to the open position. The partial exploded perspective view of the shut damper and its peripheral parts in a 1st embodiment. The side view of the register for air conditioning of FIG. FIG. 4 is a partial side cross-sectional view showing a positional relationship between a shaft of a shut damper and its peripheral components in the air conditioning register of FIG. 3. (A) is a fragmentary flat sectional view which shows the structure of the register part for an air conditioning along the 5a-5a line of FIG. 3, (b) is a fragmentary flat sectional view which expands and shows a part of (a). FIG. 4 is a side sectional view of the air conditioning register of FIG. 3. The side view of the air-conditioning register | resistor of 1st Embodiment by which the shut damper was tilted to the position just before closing. The partial sectional side view which shows the positional relationship of the spindle of a shut damper, and its peripheral component in the air-conditioning register | resistor of FIG. (A) is a fragmentary flat sectional view which shows the structure of the side part for air-conditioning register | resistor along the 9a-9a line | wire of FIG. 7, (b) is a fragmentary flat sectional view which expands and shows a part of (a). The partial sectional side view which shows a mode that the shut damper in 1st Embodiment is tilted from the position just before closing to a closed position. It is a figure which shows 2nd Embodiment of the register | resistor for air conditioning, and is a perspective view of the register | resistor for air conditioning in which the shut damper was tilted to the open position. The partial exploded perspective view of the shut damper and its peripheral parts in a 2nd embodiment. The side view of the register for air conditioning of FIG. FIG. 14 is a partial side cross-sectional view showing the positional relationship between the shaft of the shut damper and its peripheral components in the air conditioning register of FIG. 13. FIG. 14 is a side sectional view of the air-conditioning register of FIG. 13. The side view of the air-conditioning register | resistor of 2nd Embodiment in which the shut damper was tilted to the position just before closing. The fragmentary sectional side view which shows the hole in 2nd Embodiment with the spindle of a shut damper. The partial sectional side view which shows a mode that the shut damper in 2nd Embodiment is tilted from the position just before closing to a closed position. The partial sectional side view which shows the positional relationship of the spindle of a shut damper, and its peripheral component in the air-conditioning register | resistor of 2nd Embodiment in which the shut damper was tilted to the position just before closing. The partial sectional side view which shows the positional relationship of the spindle of a shut damper, and its peripheral component in the air-conditioning register | resistor of 2nd Embodiment by which the shut damper was tilted to the closed position. The fragmentary sectional side view which shows the modification of the hole in 2nd Embodiment with the spindle of a shut damper. The fragmentary sectional side view which shows the modification of the shut damper and retainer in 1st Embodiment. The fragmentary sectional side view which shows the modification of the shut damper and retainer in 2nd Embodiment.

(First embodiment)
Hereinafter, a first embodiment embodied in an air-conditioning register incorporated in an instrument panel of a vehicle will be described with reference to FIGS.

In the following description, it is assumed that the traveling direction (forward direction) of the vehicle is the front, the backward direction is the rear, and the height direction is the vertical direction.
In the passenger compartment, an instrument panel is provided in front of the front seats (driver's seat and front passenger seat) of the vehicle, and the air-conditioning register according to the first embodiment is incorporated in the center and both sides in the vehicle width direction. It is.

As shown in FIGS. 1 and 6, the air conditioning register includes a retainer 10 and fins as basic components. Next, the configuration of each part will be described.
<Retainer 10>
The retainer 10 is composed of a plurality of members formed of a hard resin material, and has a cylindrical shape with both ends open. The internal space of the retainer 10 constitutes a flow path (hereinafter referred to as “ventilation path 11”) of air-conditioning air A1 sent from an air conditioner (not shown). Here, regarding the flow direction of the air conditioning air A1 in the ventilation path 11, the side closer to the air conditioner (left side in FIG. 6) is the upstream side, and the side far from the air conditioner (right side in FIG. 6) is the downstream side. . The downstream end of the ventilation path 11 constitutes an air outlet 12 for the air-conditioning air A1.

  The ventilation path 11 is surrounded by four wall portions of the retainer 10. A pair of wall portions facing each other in the up-down direction for distinguishing these four wall portions are referred to as “opposing wall portions 13, 14”. A pair of wall portions that connect the side edge portions facing each other are referred to as “connection wall portions 15”. An upper step portion 13 a is provided in the upstream portion of the upper facing wall portion 13. In the upper facing wall portion 13, the upstream portion of the upper step portion 13 a is positioned slightly higher than the downstream portion. On the other hand, in the upstream part of the lower opposing wall part 14, a lower step part 14a is provided at a position slightly upstream of the upper step part 13a. In the lower facing wall portion 14, the upstream portion of the lower step portion 14 a is located slightly higher than the downstream portion. Note that the inner wall surfaces of both the connecting wall portions 15 are formed flat unlike the opposing wall portions 13 and 14.

  As shown in FIGS. 2 and 4, a hole 16 is provided in the upstream portion of each connecting wall portion 15 and in the central portion between the upper and lower opposing wall portions 13 and 14. The hole 16 for each connection wall portion 15 is configured by a long hole extending in the flow direction of the air-conditioning air A1 in the ventilation path 11. Here, the opening shape of the long hole is an ellipse. An ellipse is obtained by dividing a circle into two semicircles by a dividing line passing through the center thereof, separating the semicircles in a direction perpendicular to the dividing line, and separating the ends of the separated semicircles into two. It is a shape formed by tying a book with straight lines. In the first embodiment, both semicircles are slightly separated from each other, and the ellipse has a shape that is relatively close to a circle.

<Fin>
As shown in FIGS. 5A and 6, the fin includes a plurality of downstream fins 23 and a plurality of upstream fins 21. The plurality of downstream fins 23 are arranged in a state of being spaced apart from each other in the vertical direction in the vicinity of the upstream side of the air outlet 12 in the ventilation path 11. From both end surfaces in the vehicle width direction of each downstream fin 23, the support shaft 24 protrudes outward in the same direction. Each downstream fin 23 is supported by both connecting walls 15 on both support shafts 24. Therefore, each downstream fin 23 can tilt in the vertical direction with both support shafts 24 as fulcrums.

  The plurality of upstream fins 21 are arranged in a state of being separated from each other in the vehicle width direction on the upstream side of the downstream fins 23 of the ventilation path 11. From both end surfaces in the vertical direction of each upstream fin 21, the support shaft 22 protrudes outward in the same direction. Each upstream fin 21 is supported by both opposing wall portions 13 and 14 on both support shafts 22. Therefore, each upstream fin 21 can tilt in the vehicle width direction with both support shafts 22 as fulcrums.

  In the air conditioning register, air conditioning air A <b> 1 flows along each upstream fin 21 and each downstream fin 23 in the process of passing through the ventilation path 11. When each upstream fin 21 is tilted in the vehicle width direction with the support shaft 22 as a fulcrum, the inclination of the upstream fin 21 in the same direction is changed. When each downstream fin 23 is tilted in the vertical direction with the support shaft 24 as a fulcrum, the inclination of the downstream fin 23 in the same direction is changed. The air-conditioning air A <b> 1 flows in a direction corresponding to the inclination of each upstream fin 21 and each downstream fin 23 and blows out from the outlet 12.

As shown in FIGS. 2, 5, and 6, the air-conditioning register includes a shut damper 30 in addition to the above basic configuration. Next, the shut damper 30 will be described.
<Shut damper 30>
The shut damper 30 is formed of a hard resin material, and is disposed on the upstream side of the upstream fins 21 of the ventilation path 11. The main portion of the shut damper 30 has a rectangular plate shape with a uniform thickness and includes four edges. In order to distinguish these four edge portions, a pair of edge portions extending in the vehicle width direction in a state of being opposed to each other is referred to as “end edge portions 31 and 32”, and a direction along the connecting wall portion 15 in a state of being opposed to each other. The pair of edges extending to the side are referred to as “side edges 33”. Both edge portions 31 and 32 are slightly bent with respect to a portion between both edge portions 31 and 32 of the shut damper 30. This is because the edge portions 31 and 32 are brought into contact with the upper step portion 13a and the lower step portion 14a on the surface.

  Each side edge 33 of the shut damper 30 is formed with a coupling recess 34 having a non-cylindrical shape, in this case a rectangular parallelepiped shape. A support shaft 35 extending in the vehicle width direction is engaged with the hole 16 of each connecting wall portion 15 so as to be rotatable and movable in the direction in which the hole 16 extends. The support shaft 35 is made of a hard resin material. One end portion of the support shaft 35 is provided with a non-cylindrical coupling protrusion 36 having a rectangular parallelepiped shape. In this case, the connection protrusion 36 is fitted into the coupling recess 34 so that the support shaft 35 is fitted. 35 is coupled to the shut damper 30 so as to be integrally rotatable. Note that, unlike the patent document 1, the shut damper 30 does not use a sealing body made of a soft material.

  The shut damper 30 can tilt between an open position and a closed position. In the open position, as shown in FIG. 6, the shut damper 30 is in a state near the parallel portion with respect to the flow direction of the air-conditioning air A1, at the central portion between the opposing wall portions 13, 14, and here, slightly toward the downstream side. The air passage 11 is largely opened with a slight inclination with respect to the horizontal plane. In the closed position, the shut damper 30 is inclined in a state of being nearly orthogonal to the opposing wall portions 13 and 14 as shown by a two-dot chain line in FIG. At this time, the end edge portion 31 of the shut damper 30 contacts the upper step portion 13a, and the end edge portion 32 contacts the lower step portion 14a.

  Further, as shown by the solid line in FIG. 10, when the shut damper 30 is tilted to the position immediately before closing, which is close to the closing position, only the one edge 31 is brought into contact with the upper step 13a. The positional relationship of the step part 13a, the lower step part 14a, the hole 16, etc. is set. This setting is made in consideration of variations in dimensions of the shut damper 30 and the retainer 10.

  As shown in FIG. 2 and FIG. 5 (b), on the outer surface in the vehicle width direction of one of the connecting wall portions 15, a support wall 37 is provided at a location approaching the hole 16 upstream of the hole 16. Is provided. The support wall 37 includes a main body wall portion 37a that protrudes outward from the connecting wall portion 15 in the vehicle width direction, and an auxiliary wall portion 37b that extends from the outer end portion of the main body wall portion 37a to the support shaft 35 side. Yes. The main body wall portion 37a plays a role of abutting in a state where an elastic portion 42 described later is elastically deformed. The auxiliary wall portion 37b controls the outward movement of the cam 39 in the vehicle width direction, which will be described later, and plays a role of suppressing the falling of the cam 39, the support shaft 35, and the lever 51 from the connecting wall portion 15. Yes.

  A restriction wall 38 is provided at a location in the flow direction of the air-conditioning air A <b> 1 and facing the support wall 37 across the hole 16 in the connection wall portion 15, that is, at a location downstream of the hole 16. The restriction wall 38 includes a main body wall portion 38a that protrudes outward in the vehicle width direction from the connecting wall portion 15, and an auxiliary wall portion 38b that extends from the outer end portion of the main body wall portion 38a to the support shaft 35 side. Yes. The main body wall 38 a plays a role in which the cam 39 is pressed in the open position of the shut damper 30. The auxiliary wall portion 38b regulates the outward movement of the cam 39 in the vehicle width direction and plays a role of suppressing the cam 39, the support shaft 35, and the lever 51 from falling off from the connecting wall portion 15. .

  The support shaft 35 is provided with a plate-like cam 39 made of an eccentric cam so as to be integrally rotatable. As shown in FIG. 4, the cam 39 has an arcuate surface on the outer periphery. A projecting portion 41 that protrudes radially outward is formed on the outer peripheral portion. The radial dimension of the cam 39 (including the protrusion 41) is set to be approximately the same as the distance between the main body wall portions 37a and 38a of the support wall 37 and the regulating wall 38 at the largest portion.

  An elastic portion 42 for urging the support shaft 35 to one side in the direction in which the hole 16 extends (on the downstream side in the first embodiment) is provided at the protruding end of the protruding portion 41. The urging direction of the elastic portion 42 is a direction facing a direction in which a link member 53 described later is moved when the shut damper 30 is tilted from the position immediately before closing to the closed position (the direction opposite to the moving direction of the link member 53). It is.

  The elastic portion 42 starts from the protruding end of the protruding portion 41, and is separated from the outer surface of the cam 39 in one direction (counterclockwise direction in FIG. 4) in the rotational direction of the support shaft 35. It extends along 39 arcuate surfaces. The elastic part 42 is formed such that the distance D1 from the center of the support shaft 35 to the outer surface of the elastic part 42 is minimum at the boundary with the protrusion 41 and gradually increases as the distance from the protrusion 41 in the circumferential direction increases. Has been.

  The cam 39 and the elastic portion 42 are rotated integrally with the support shaft 35. In the open position of the shut damper 30 (FIG. 4), the location where the radial dimension of the cam 39 (including the protrusion 41) is maximum is located between the main body wall portions 37a, 38a. At this time, the boundary portion of the elastic portion 42 with the projection 41 contacts the main body wall portion 37 a, and most of the elastic portion 42 other than the boundary portion is separated from the main body wall portion 37 a in the circumferential direction of the cam 39.

  Further, when the shut damper 30 tilts at a tilt position different from the open position, as shown in FIG. 8, the cam 39 is separated from both the body wall portions 37a and 38a, and the elastic portion 42 is elastic. While deforming, it comes into sliding contact with the main body wall portion 37a.

The air conditioning register is provided with a damper drive mechanism 45 for tilting the shut damper 30.
<Damper drive mechanism 45>
As shown in FIGS. 1 and 3, the damper drive mechanism 45 includes an operation dial 46 and a rotation transmission unit 50. The operation dial 46 is arranged in an upright state, and is rotatably supported by the connecting wall portion 15 of the retainer 10 by a support shaft 47. A part of the operation dial 46 is exposed to the downstream side of the downstream end of the retainer 10.

  The rotation transmitting portion 50 is for transmitting the rotation of the operation dial 46 to the support shaft 35 of the shut damper 30, and is located outward in the vehicle width direction from the connecting wall portion 15. And the support shaft 35. The rotation transmission part 50 is comprised by the link mechanism, the gear mechanism, etc. In the first embodiment, a pin 48 protruding outward in the vehicle width direction is provided on the operation dial 46 and below the support shaft 47. A lever 51 is provided on one support shaft 35 of the shut damper 30 so as to be integrally rotatable. The tip of the lever 51 is located below the support shaft 35, and a pin 52 that protrudes outward in the vehicle width direction is provided at the tip. The both pins 48 and 52 are disposed below the support shaft 47 of the operation dial 46 and the support shaft 35 of the shut damper 30 and are elongated link members extending substantially in the ventilation direction of the air-conditioning air A1. 53 are connected.

  As shown in FIG. 3, when the shut damper 30 is in the open position, the pin 48 of the operation dial 46 is positioned downstream of the support shaft 47, and the pin 52 of the lever 51 is connected to the support shaft 35 of the shut damper 30. Is also located downstream. On the other hand, as shown in FIG. 7, when the shut damper 30 is in the position immediately before closing, the pin 48 of the operation dial 46 is positioned upstream of the support shaft 47, and the pin 52 of the lever 51 is connected to the shut damper 30. It is located on the upstream side of the support shaft 35. In both the open position and the closed position, the link member 53 is inclined so as to be slightly lower toward the downstream side.

Next, the operation of the air conditioning register of the first embodiment configured as described above will be described.
3 and 6 show a state when the shut damper 30 is in the open position. In this state, the shut damper 30 is in a state close to parallel to the flow direction of the air-conditioning air A1 at the central portion between the opposing wall portions 13 and 14. The ventilation path 11 is greatly opened (becomes fully open), and the air for air conditioning A1 can flow downstream from the shut damper 30. The air conditioning air A1 flows separately on the upper side and the lower side of the shut damper 30. The air-conditioning air A1 that has passed through the shut damper 30 flows along the upstream fins 21 and the downstream fins 23 and then blows out from the outlet 12.

  At this time, as shown in FIG. 4, the protrusion 41 of the cam 39 is positioned on the upstream side of the support shaft 35, and the largest portion in the radial direction of the cam 39 (including the protrusion 41) is the support wall 37 and The restriction wall 38 is located between the two main body wall portions 37a and 38a. The maximum radial dimension of the cam 39 (including the protrusion 41) is approximately the same as the distance between the two main body wall portions 37a and 38a. The boundary portion of the elastic portion 42 with the projection 41 contacts the main body wall portion 37a of the support wall 37 and elastically deforms to urge the cam 39 to the downstream side. It is pressed against the wall 38a. Therefore, the movement of the cam 39 in the flow direction of the air-conditioning air A1 is restricted, and the backlash of the cam 39 is suppressed.

  Further, the support shaft 35 is held (positioned) in the vicinity of the upstream end 16a of the inner wall surface of the hole 16 with respect to the flow direction of the air-conditioning air A1 in accordance with the above regulation, and the backlash of the support shaft 35 is suppressed. Yes. A gap G <b> 1 is generated between the downstream end 16 b of the inner wall surface of the hole 16 and the support shaft 35.

  When the operation dial 46 is rotated downward to tilt the shut damper 30 from the open position to the closed position, the rotation causes the pin 48, the link member 53, the pin 52, the lever 51, and the support shaft 35 to rotate. To the shut damper 30. The pin 48 pivots around the support shaft 47 of the operation dial 46 in the clockwise direction of FIG. 3, and the pin 52 rotates around the support shaft 35 of the shut damper 30 in the clockwise direction of FIG. Is moved upstream while maintaining the inclined state.

  Further, the support shaft 35 is rotated integrally with the cam 39 and the elastic portion 42 in the clockwise direction of FIG. 3, and the shut damper 30 starts to tilt in the same direction with the support shaft 35 as a fulcrum. Cross over. With this rotation, the cam 39 moves away from the main body wall portion 38 a of the restriction wall 38 in addition to the main body wall portion 37 a of the support wall 37.

  As the rotation of the support shaft 35 proceeds, the contact location of the elastic portion 42 with the main body wall portion 37a changes. Since the distance D1 from the center of the support shaft 35 to the outer surface of the elastic portion 42 gradually increases as the distance from the protrusion 41 in the circumferential direction, the force for pressing the cam 39 downstream increases. The support shaft 35 is moved downstream in the hole 16. This movement is stopped when the support shaft 35 comes into contact with the downstream end 16b of the inner wall surface of the hole 16 as shown in FIG. At this time, a gap G <b> 2 is generated between the support shaft 35 and the upstream end 16 a of the inner wall surface of the hole 16. Since the support shaft 35 is urged by the elastic portion 42, the support shaft 35 is less likely to rattle in the flow direction of the air-conditioning air A <b> 1 in the hole 16. At this time, since the cam 39 is separated from both the main body wall portions 37a and 38a, the operation of the elastic portion 42 is hardly hindered.

  As the tilt of the shut damper 30 proceeds, the tilt angle of the shut damper 30 with respect to the flow direction of the air-conditioning air A1 increases. Then, as shown in FIGS. 9A and 9B, when the shut damper 30 is tilted to the position just before closing close to the closing position, both end edges of the shut damper 30 are shown as indicated by solid lines in FIG. Of the portions 31 and 32, only one end edge portion 31 contacts the retainer 10 (upper step portion 13a).

At this time, as shown in FIG. 7, the pin 48 is positioned upstream of the support shaft 47 of the operation dial 46, and the pin 52 is positioned upstream of the support shaft 35 of the shut damper 30.
However, in this case, the operation dial 46 is further rotated downward to move the link member 53 to the upstream side, so that the elastic portion 42 is bent more than the state shown in FIG. 8 against its urging force. The support shaft 35 can be moved upstream in the hole 16 by being elastically deformed. By this movement, as shown in FIG. 10, the shut damper 30 is tilted in the clockwise direction of FIG. 10 with the corner portion of one end edge portion 31 as a fulcrum. Then, when the shut damper 30 is tilted to the closed position, the end edge portion 32 is brought into contact with the retainer 10 (lower step portion 14a) on the surface, as shown by a two-dot chain line in FIG. That is, when the shut damper 30 tilts from the position immediately before closing to the closing position, the tilting fulcrum is switched from the support shaft 35 to the corner of one end edge 31. The gap between the edge portion 32 and the lower stepped portion 14a existing at the position immediately before closing is absorbed when the shut damper 30 is tilted toward the closed position, and the gap becomes smaller at the closed position. The gap is absorbed even if it occurs due to variations in the dimensions of the shut damper 30 and the retainer 10. The air conditioning air A1 upstream of the shut damper 30 passes from the shut damper 30 through the gap between the end edge portion 31 and the upper stepped portion 13a and the gap between the end edge portion 32 and the lower stepped portion 14a. Are also restricted from flowing downstream.

  When tilting the shut damper 30 from the above state to the open position, the operation dial 46 is rotated upward, contrary to the above. Along with this turning operation, the air-conditioning register performs an operation opposite to the above. That is, in accordance with the turning operation, the pin 48 turns around the support shaft 47 of the operation dial 46 in the counterclockwise direction, and the pin 52 turns around the support shaft 35 of the shut damper 30 in the counterclockwise direction. The link member 53 is moved downstream while maintaining the inclined state.

  Due to the above movement of the link member 53, the force for elastically deforming the elastic portion 42 is reduced. Therefore, the elastic portion 42 is elastically restored to the upstream side (side away from the support shaft 35 and the cam 39), and the support shaft 35 is moved downstream in the hole 16. With the movement of the support shaft 35, the shut damper 30 is tilted counterclockwise in FIG. 10 with the corner portion of the end edge portion 31 as a fulcrum. At the position immediately before closing, as shown by a solid line in FIG. 10, the end edge portion 32 is separated from the lower step portion 14a. As shown in FIG. 8, the movement of the support shaft 35 to the downstream side stops when the support shaft 35 contacts the downstream end 16 b of the inner wall surface of the hole 16.

  When the operation dial 46 is further rotated upward, the support shaft 35 is pressed against the downstream end 16b of the inner wall surface of the hole 16 by the urging force of the elastic portion 42, and is accompanied by the cam 39 and the elastic portion 42. 8 is rotated counterclockwise. Further, with the support shaft 35 as a fulcrum, the shut damper 30 is tilted in the same direction, and the inclination angle of the shut damper 30 with respect to the flow direction decreases. However, the force by which the elastic portion 42 tries to press the support shaft 35 against the downstream end 16b of the inner wall surface of the hole 16 decreases as the support shaft 35 rotates.

  Then, as shown in FIG. 4, the cam 39 is located until the projection 41 is located on the upstream side of the support shaft 35 and the portion having the largest radial dimension of the cam 39 is located between the main body wall portions 37a and 38a. Is rotated. Then, with the rotation of the cam 39, the shut damper 30 is tilted to the open position. At this time, the cam 39 comes into contact with the main body wall portion 38 a of the restriction wall 38, and the support shaft 35 is moved upstream in the hole 16. A gap G <b> 1 is formed between the downstream end 16 b of the inner wall surface of the hole 16 and the support shaft 35.

  In addition, when the temperature in the passenger compartment increases in summer or the like, the elastic portion 42 made of resin may be deformed by heat, and the elastic force and elastic restoring force of the elastic portion 42 may be reduced. However, the elastic portion 42 is most deformed when the shut damper 30 is tilted to the closed position. The elastic part 42 does not deform more greatly than this. Therefore, even when the elastic portion 42 is deformed by heat in this way, the end edge portion 32 of the shut damper 30 is brought into contact with the retainer 10 (the lower step portion 14a) in the closed position. The gap between the end edge portion 32 and the lower step portion 14a is small, and the airtightness of the ventilation path 11 is ensured.

According to the first embodiment described in detail above, the following effects can be obtained.
(1) At the position immediately before closing, which is close to the closing position, only one end (end edge 31) of both end edges 31, 32 of the shut damper 30 is configured to abut against the retainer 10 (upper step 13a) (FIG. 10 solid lines). The hole 16 with which the support shaft 35 of the shut damper 30 is engaged is constituted by a long hole extending in the flow direction of the air-conditioning air A1 (FIG. 4). An elastic portion 42 that urges the support shaft 35 to one side (downstream side) in the direction in which the hole 16 extends is provided. Then, when tilting from the position immediately before closing to the closing position, the support shaft 35 is moved upstream in the hole 16 against the elastic portion 42, so that the corner damper of one end edge portion 31 serves as a fulcrum. 30 is tilted upstream, and the other end edge 32 is brought into contact with the retainer 10 (lower step 14a) (two-dot chain line in FIG. 10).

  Therefore, even if the shut damper 30 and the retainer 10 have dimensional variations, when the shut damper 30 is tilted to the closed position, the end edge portion 31 is brought into contact with the upper step portion 13a, and the end edge portion 32 can be brought into contact with the lower stepped portion 14a to improve the airtightness of the ventilation path 11.

Regardless of the inclination of the shut damper 30, the support shaft 35 can be prevented from rattling in the hole 16 by urging the support shaft 35 with the elastic portion 42.
(2) The elastic portion 42 is provided on the support shaft 35 so as to be integrally rotatable. A support wall 37 having a main body wall portion 37a that abuts in a state where the elastic portion 42 is elastically deformed is provided at a location near the hole 16 in the connecting wall portion 15 (FIG. 8).

  Therefore, when the shut damper 30 is tilted, the support shaft 35 is slidably contacted with the main body wall portion 37a while being elastically deformed while rotating the elastic portion 42 integrally with the support shaft 35, so that the support shaft 35 is slidable. Can be urged to the downstream side. When the shut damper 30 tilts from the position immediately before closing to the closing position, the support shaft 35 is moved upstream in the hole 16 against the urging force of the elastic portion 42, thereby The end portion 32 can be brought into contact with the lower step portion 14a by tilting the shut damper 30 upstream with the portion as a fulcrum.

  (3) The main body wall portion 38a of the regulating wall 38 is provided at a location facing the main body wall portion 37a of the support wall 37 across the hole 16 in the connecting wall portion 15. Between the support shaft 35 and the elastic portion 42, it is rotated together with the support shaft 35 together with the elastic portion 42, and is pressed against the main body wall 38 a by the elastic portion 42 at the open position of the shut damper 30, and A cam 39 is provided at a tilt position different from the open position of the shut damper 30 so as to be separated from both main body wall portions 37a and 38a (FIG. 4).

Therefore, in the open position of the shut damper 30, the cam 39 can be pressed against the main body wall portion 38a by the elastic portion 42, and the movement of the cam 39 and thus the support shaft 35 can be restricted.
When the shut damper 30 is tilted in a region different from the open position, the cam 39 is rotated together with the support shaft 35 together with the elastic portion 42. The support shaft 35 can be urged to the downstream side of the hole 16 by sliding the elastic portion 42 against the main body wall portion 37 a while being elastically deformed as the support shaft 35 rotates.

Further, the cam 39 can be prevented from hindering the operation of the elastic portion 42 by separating the cam 39 from both the body wall portions 37a and 38a during the tilting.
(Second Embodiment)
Next, a second embodiment of the air conditioning register will be described with reference to FIGS.

<Retainer>
As shown in FIGS. 11 and 15, the retainer 10 includes a pair of opposing wall portions 13 and 14 and a pair of connecting wall portions 15, as in the first embodiment. However, the upper facing wall portion 13 is not provided with the upper step portion 13a, and the lower facing wall portion 14 is not provided with the lower step portion 14a. The inner wall surfaces of the opposing wall portions 13, 14 are formed flat like the connecting wall portions 15.

  A hole 16 extending in the flow direction of the air-conditioning air A <b> 1 is provided in an upstream portion of each connecting wall portion 15 and in a central portion between the opposing wall portions 13 and 14. As shown in FIGS. 17 and 18, the hole 16 is formed longer than in the first embodiment. Then, the hole 16 has a locus T1 along which the support shaft 35 moves when the shut damper 30 is tilted between the position immediately before closing indicated by the solid line in FIG. 18 and the closing position indicated by the two-dot chain line in FIG. It is formed in the shape along. The trajectory T1 is expressed by a circular arc that is centered on the corner portion of the end edge portion 32 (the portion marked with a dot (•) in FIG. 18) and becomes higher toward the downstream side. Considering this, the hole 16 is inclined so as to be higher toward the downstream side. In the second embodiment, the opening shape of the hole 16 extends straight along the tangent line of the locus T1, but may be curved along the locus T1.

  As shown in FIGS. 12 and 14, a locking hole 17 is provided in a state of penetrating the connecting wall portion 15 slightly downstream from the hole 16 of the connecting wall portion 15 and below the hole 16. Yes. Further, a support protrusion 18 is provided on the outer surface of the connecting wall 15 in the vehicle width direction and at an intermediate portion between the locking hole 17 and the restriction wall 38.

<Shut damper 30>
In the second embodiment, unlike the first embodiment, both end edges 31 and 32 of the shut damper 30 are not bent, and the entire shut damper 30 has a rectangular flat plate shape. The point that the seal body made of a soft material is not used for the shut damper 30 is the same as that of the first embodiment.

  As shown in FIG. 15, in the open position, the shut damper 30 is in a state parallel to the flow direction of the air-conditioning air A <b> 1 at the central portion between the opposing wall portions 13 and 14. Further, since the upper step portion 13a and the lower step portion 14a are eliminated from both the opposing wall portions 13 and 14, the shut damper 30 is in the closed position with respect to the flow direction as shown by a two-dot chain line in FIG. It is in a slightly inclined (smaller) inclined state than in the first embodiment.

  Furthermore, in 2nd Embodiment, it is comprised so that only one side (end edge part 32) of the both-ends edge parts 31 and 32 of the shut damper 30 may contact | abut to the retainer 10 (opposing wall part 14) in the position just before closing. . Therefore, in the shut damper 30, the length L2 from the support shaft 35 of the lower end edge portion 32 at the position immediately before closing is longer than the length L1 from the support shaft 35 of the upper end edge portion 31. Is also set longer.

  As shown in FIG. 14, a plate-like cam 39 is integrally provided on the support shaft 35 of the shut damper 30, but a protrusion 41 and an elastic portion 42 are provided on the outer periphery of the cam 39. Not. The cam 39 has an arcuate surface on the outer periphery. At least part of this surface is formed with a groove 39a curved along the arc-shaped surface (see FIG. 12).

  In the second embodiment, an elastic portion 55 configured by a metal wire spring is used instead of the resin elastic portion 42 in the first embodiment. The elastic portion 55 is disposed on the outer side of the connecting wall portion 15 in the vehicle width direction so as to extend in the vertical direction. The lower end portion of the elastic portion 55 is bent inward in the vehicle width direction and is inserted and locked in the locking hole 17. The elastic portion 55 extends upward from the locking hole 17 and is located on the upstream side of the support protrusion 18. The portion of the elastic portion 55 above the support protrusion 18 is in contact with the groove portion 39a of the cam 39 from the downstream side while being bent (elastically deformed) to the downstream side, and the support shaft 35 is It is always biased to the upstream side, which is one of the extending directions of the holes 16. The urging direction of the elastic portion 55 is a direction opposite to the direction in which the link member 53 is moved when the shut damper 30 is tilted from the position immediately before closing to the closed position (the direction opposite to the moving direction of the link member 53). .

<Damper drive mechanism 45>
As shown in FIGS. 11 and 13, the pin 48 protruding outward in the vehicle width direction from the operation dial 46 is located at a location above the support shaft 47. The pin 52 that protrudes outward in the vehicle width direction from the lever 51 is positioned above the support shaft 35 of the shut damper 30. The link member 53 that extends substantially in the direction of ventilation of the air-conditioning air A <b> 1 and connects the pins 48 and 52 is positioned above the both support shafts 47 and 35.

  When the shut damper 30 is in the open position, the pin 48 of the operation dial 46 is positioned upstream of the support shaft 47, and the pin 52 of the lever 51 is positioned upstream of the support shaft 35 of the shut damper 30. On the other hand, as shown in FIG. 16, when the shut damper 30 is in the position immediately before closing, the pin 48 of the operation dial 46 is located downstream of the support shaft 47, and the pin 52 of the lever 51 is connected to the shut damper 30. It is located downstream of the support shaft 35. The link member 53 is almost horizontal at any of the opening position and the position immediately before closing.

In addition, the same code | symbol is attached | subjected to the element similar to what was demonstrated in 1st Embodiment, and the overlapping description is abbreviate | omitted.
Next, the operation of the air conditioning register of the second embodiment configured as described above will be described.

  13 and 15 show the state when the shut damper 30 is in the open position. In this state, the shut damper 30 is in a state parallel to the flow direction of the air-conditioning air A1 at the central portion between the opposing wall portions 13 and 14. The ventilation path 11 is greatly opened (becomes fully open), and the air for air conditioning A1 can flow downstream from the shut damper 30. Therefore, the air-conditioning air A <b> 1 flows separately on the upper side and the lower side of the shut damper 30. The air-conditioning air A1 that has passed through the shut damper 30 flows along the upstream fins 21 and the downstream fins 23 and then blows out from the outlet 12.

  At this time, as shown in FIG. 14, the cam 39 is urged upstream by the elastic portion 55, and the support shaft 35 is pressed against the upstream end 16 a of the inner wall surface of the hole 16. The support shaft 35 is positioned in the flow direction, and the support shaft 35 is restricted from moving in the flow direction in the hole 16. A gap G <b> 1 is generated between the downstream end 16 b of the inner wall surface of the hole 16 and the support shaft 35.

  When the operation dial 46 is rotated downward to tilt the shut damper 30 from the open position to the closed position, the rotation is performed as shown in FIG. 13 by the pin 48, the link member 53, the pin 52, and the lever. It is transmitted to the shut damper 30 via 51 and the support shaft 35. The pin 48 turns around the support shaft 47 of the operation dial 46 in the clockwise direction of FIG. 13, the pin 52 turns around the support shaft 35 of the shut damper 30 in the clockwise direction of FIG. It is moved downstream while maintaining a horizontal posture.

  Further, the support shaft 35 is rotated integrally with the cam 39 in the clockwise direction of FIG. 13, and the shut damper 30 starts to tilt in the clockwise direction of FIG. It intersects with the distribution direction of A1. When the shut damper 30 is tilted between the open position and the position immediately before closing, as shown in FIG. 19, the support shaft 35 has the upstream end 16 a of the inner wall surface of the hole 16 by the urging force of the elastic portion 55. Will continue to be pressed. Since the support shaft 35 is urged by the elastic portion 55, it is difficult for the support shaft 35 to rattle within the hole 16.

  As the tilt of the shut damper 30 advances, the tilt angle of the shut damper 30 with respect to the flow direction increases. Then, as shown by a solid line in FIG. 18, when the shut damper 30 is tilted to the position immediately before closing, only one end edge 32 of the both end edges 31, 32 of the shut damper 30 is the retainer 10 (opposing wall). Part 14). That is, when the shut damper 30 is tilted with the support shaft 35 as a fulcrum, the amount of rotation of the end edges 31 and 32 around the support shaft 35 is the length from the support shaft 35 to the end edges 31 and 32. It depends on L1 and L2. The end edges 31, 32 swirl a greater amount than those having a long length L2 than those having a short length L1. Therefore, in the second embodiment in which the support shaft 35 is located at the center between the opposing wall portions 13 and 14, when the shut damper 30 is tilted to the position immediately before closing, only a long length L2 from the support shaft 35 is obtained. The separated edge portion 32 contacts the opposing wall portion 14 at a timing earlier than the timing when the edge portion 31 separated by a short length L1 contacts the opposing wall portion 13. A situation occurs in which only one end edge portion 32 abuts on the retainer 10 (opposing wall portion 14).

  At this time, as shown in FIG. 16, the pin 48 is positioned downstream of the support shaft 47 of the operation dial 46, and the pin 52 is positioned downstream of the support shaft 35 of the shut damper 30.

  However, in this case, the operation dial 46 is further rotated downward to move the link member 53 to the downstream side, so that the elastic portion 55 is resisted against the biasing force as shown in FIG. It is possible to move the support shaft 35 to the downstream side in the hole 16 by bending it to the side (elastically deforming). By moving the support shaft 35 to the downstream side in this manner, the shut damper 30 is tilted clockwise with the corner portion of the end edge portion 32 as a fulcrum as shown by a two-dot chain line in FIG. At this time, as shown in FIG. 17, since the hole 16 is inclined so as to become higher toward the downstream side along the trajectory T1 of the support shaft 35, the support shaft 35 is moved along the trajectory T1. It is difficult to interfere with the inner wall surface of the hole 16. When the shut damper 30 is tilted to the closed position, the end edge portion 31 is brought into contact with the opposing wall portion 13 in addition to the contact with the opposing wall portion 14 of the end edge portion 32. That is, when the shut damper 30 tilts from the position immediately before closing to the closed position, the tilting fulcrum is switched from the support shaft 35 to the corner of one end edge 32. The gap between the edge portion 31 and the opposing wall portion 13 that existed immediately before the closing is absorbed when the shut damper 30 is tilted toward the closing position, and the gap becomes small at the closing position. The gap is absorbed even if it occurs due to variations in the dimensions of the shut damper 30 and the retainer 10. The air conditioning air A1 upstream of the shut damper 30 passes from the shut damper 30 through the gap between the end edge portion 31 and the opposing wall portion 13 or the gap between the end edge portion 32 and the opposing wall portion 14. Are also restricted from flowing downstream.

  As described above, the elastic portion 55 is made of a spring attached to the connecting wall portion 15 and is elastically deformed and is in contact with the cam 39 in an elastically deformed state. The elastic portion 55 thus urged the supporting shaft 35 to one side (upstream side) in the direction in which the hole 16 extends by its own restoring force. When the shut damper 30 is tilted from the position immediately before closing to the closing position, the support shaft 35 is moved downstream in the hole 16 against the elastic portion 55, so that the corner portion of the end edge portion 32 is moved. The shut damper 30 is tilted clockwise as a fulcrum, and the end edge portion 31 is brought into contact with the opposing wall portion 13.

  When tilting the shut damper 30 from the above state to the open position, the operation dial 46 is rotated upward, contrary to the above. Along with this turning operation, the air-conditioning register performs an operation opposite to the above. That is, with the turning operation, the pin 48 turns around the support shaft 47 of the operation dial 46 in the counterclockwise direction, and the pin 52 turns around the support shaft 47 of the shut damper 30 in the counterclockwise direction. The link member 53 is moved upstream while maintaining the posture substantially horizontal.

  As the pin 48 turns counterclockwise around the support shaft 47 of the operation dial 46, the force for bending the elastic portion 55 to the downstream side (elastic deformation) is reduced. Therefore, the elastic portion 55 is elastically restored, and the support shaft 35 is moved upstream in the hole 16. With the movement of the support shaft 35, as shown in FIG. 18, the shut damper 30 is tilted counterclockwise in FIG. 18 with the corner portion of one end edge portion 32 as a fulcrum, and the end edge portion 31 faces. It is slightly separated from the wall 13. The movement of the support shaft 35 toward the upstream side stops when the support shaft 35 contacts the upstream end 16 a of the inner wall surface of the hole 16. At this time, since the hole 16 is inclined so as to become lower toward the upstream side along the trajectory T1 of the support shaft 35, it is difficult to interfere with the inner wall surface of the hole 16 when the support shaft 35 is moved.

  When the operation dial 46 is further rotated upward, the support shaft 35 is pressed against the upstream end 16a of the inner wall surface of the hole 16 by the urging force of the elastic portion 55, and the counterclockwise of FIG. It is turned in the turning direction. Further, the shut damper 30 is tilted counterclockwise in FIG. 18 with the support shaft 35 as a fulcrum, and the tilt angle of the shut damper 30 with respect to the flow direction decreases.

  As shown in FIG. 13, the operation is performed until the pin 48 of the operation dial 46 is positioned upstream of the support shaft 47 and the pin 52 of the lever 51 is positioned upstream of the support shaft 35 of the shut damper 30. When the dial 46 is turned upward, the shut damper 30 is tilted to the open position. Also at this time, as shown in FIG. 14, the state in which the support shaft 35 urged upstream by the elastic portion 55 is pressed against the upstream end 16a of the inner wall surface of the hole 16 is maintained, and the air conditioning air A1 is maintained. The support shaft 35 is positioned in the flow direction, and rattling of the support shaft 35 in the hole 16 is suppressed.

Therefore, according to the second embodiment, in addition to the same effect as the above (1), the following effect can be obtained.
(4) The support shaft 35 is positioned at the center between the opposing wall portions 13 and 14. In the shut damper 30, the length L2 of the end edge portion 32 from the support shaft 35 is set to be longer than the length L1 of the end edge portion 31 from the support shaft 35 (FIG. 18).

  Therefore, when the shut damper 30 is tilted to a position immediately before closing, the end edge portion 32 that is separated from the support shaft 35 by a long length L2 is brought into contact with the opposing wall portion 14, and the short length from the support shaft 35 is shortened. The edge part 31 separated by L1 can be prevented from coming into contact with the opposing wall part 13.

  (5) The elastic portion 55 is configured by a spring attached to the connecting wall portion 15. Further, by indirectly contacting the support shaft 35 via the cam 39 in a state where the elastic portion 55 is elastically deformed, the support shaft 35 is always urged to the upstream side which is one of the extending directions of the hole 16. (FIG. 14).

  Therefore, it is possible to prevent the support shaft 35 from rattling in the hole 16 when the shut damper 30 is tilted. When the shut damper 30 is tilted from the position immediately before closing to the closing position, the support shaft 35 is moved downstream in the hole 16 against the elastic portion 55 (FIG. 20), so that one end edge portion is moved. The end damper 31 can be brought into contact with the opposing wall 13 by tilting the shut damper 30 in the clockwise direction of FIG.

  (6) The shape of the hole 16 along the trajectory T1 along which the support shaft 35 moves when the shut damper 30 is tilted between the position immediately before closing and the closed position (a shape inclined so as to become higher toward the downstream side). (FIG. 17).

Therefore, interference with the inner wall surface of the hole 16 when the support shaft 35 is moved can be suppressed, and the support shaft 35 can be moved more smoothly in the hole 16.
In addition, said each embodiment can also be implemented as a modification which changed this as follows.

<About hole 16>
-As shown in FIG. 21, the opening shape of the hole 16 in 2nd Embodiment may be changed into what combined the circular arc of a different diameter in an upstream part and a downstream part. FIG. 21 shows an example in which the downstream portion is configured by an arc having a larger diameter than the upstream portion.

Also in this case, similarly to the second embodiment, when the support shaft 35 is moved, the support shaft 35 is less likely to interfere with the inner wall surface of the hole 16, and the support shaft 35 moves more smoothly in the hole 16.
In the second embodiment, the hole 16 is inclined with respect to the flow direction of the air-conditioning air A1 so as to follow the trajectory T1, but if the support shaft 35 can be moved in the hole 16, the hole 16 May be changed to a shape extending along the flow direction (extending in parallel).

<Retainer 10 and shut damper 30>
As shown in FIG. 22, a concave portion 56 that is recessed toward the downstream side is formed in the upper step portion 13a of the opposing wall portion 13 in the first embodiment, and the lower step portion 14a of the opposing wall portion 14 A recess 57 that is recessed toward the upstream side may be formed. Further, as shown by a solid line in FIG. 22, a protrusion 58 that can engage with the recess 56 at the closed position is formed at the end edge 31 of the shut damper 30 and at the end 32 at the closed position. A protrusion 59 that can engage with the recess 57 may be formed.

  According to this modification, in the closed position, the air-conditioning air A1 that attempts to pass through the gap between the end edge portion 31 and the upper step portion 13a has to change direction greatly after entering the inner portion of the recess 56. , It becomes difficult to flow downstream from the upper step portion 13a. Similarly, the air-conditioning air A1 that attempts to pass through the gap between the end edge portion 32 and the lower step portion 14a has to change direction after entering the inner portion of the recess 57, which is more than the lower step portion 14a. It becomes difficult to flow downstream.

Therefore, it becomes possible to further improve the sealing performance of the ventilation path 11 when the shut damper 30 is tilted to the closed position.
As shown in FIG. 23, a locking projection 62 having a recess 61 that is recessed toward the downstream side is formed on the inner wall surface of the facing wall portion 13 in the second embodiment, and the inner wall surface of the facing wall portion 14. In addition, a locking protrusion 64 having a recess 63 that is recessed toward the upstream side may be formed. Further, as shown by a solid line in FIG. 23, a protrusion 65 that can be engaged with the recess 61 in the closed position is formed at the end edge 31 of the shut damper 30 and at the end 32 at the closed position. A protrusion 66 that can engage with the recess 63 may be formed.

  Also in this modified example, as in FIG. 22, in the closed position, the air-conditioning air A <b> 1 that tries to pass through the gap between the end edge portion 31 and the locking projection 62 is also separated from the end edge portion 32 and the locking projection 64. The air conditioning air A <b> 1 that is about to pass through the gap must also change its direction after entering the depths of the recesses 61 and 63, and is less likely to flow downstream than the locking protrusions 62 and 64. As a result, it is possible to further improve the sealing performance of the ventilation path 11 when the shut damper 30 is tilted to the closed position.

  The support shaft 35 is disposed at the center between the opposing wall portions 13 and 14, and in the shut damper 30, the length L 2 from the support shaft 35 of the end edge portion 32 and the support shaft 35 of the end edge portion 31. Is different from the length L1 in one of the configurations for bringing only the longer end edge portions 31 and 32 of the lengths L1 and L2 into contact with the opposing wall portions 13 and 14 at the position immediately before closing. is there.

  This configuration is effective when the opposing wall portions 13 and 14 of the retainer 10 have locations where the corner portions of the end edge portions 31 and 32 of the shut damper 30 are brought into contact with each other immediately before the closing. Therefore, this configuration is not limited to the second embodiment, and can be widely applied to air-conditioning registers using the retainer 10 that satisfies the above conditions.

<About elastic parts 42 and 55>
-The elastic part 55 in 2nd Embodiment is changed to the structure which always urges | biases the support shaft 35 to the one (upstream side) of the extension direction of the hole 16 by contact | abutting directly to the support shaft 35 in the elastically deformed state. May be.

<About fins>
-At least one of the upstream fin 21 and the downstream fin 23 may be omitted. Further, other fins may be added to the upstream fins 21 and the downstream fins 23.

<Applicable points>
The air-conditioning register can be applied to a part that is different from the instrument panel in the passenger compartment, for example, a type incorporated in a dashboard.

  The above air conditioning register may be used for vehicles as long as it has a shut damper that opens and closes the ventilation path in addition to changing the direction of air conditioning air sent from the air conditioner and blown into the room from the air outlet. The present invention is not limited to this and can be widely applied as an air conditioning register for other fields.

  DESCRIPTION OF SYMBOLS 10 ... Retainer, 11 ... Ventilation path, 13, 14 ... Opposite wall part, 15 ... Connection wall part, 16 ... Hole, 22, 24, 35, 47 ... Spindle, 30 ... Shut damper, 31, 32 ... End edge part , 37 ... support wall, 37a and 38a ... main body wall part, 38 ... regulating wall, 39 ... cam, 42 and 55 ... elastic part, A1 ... air for air conditioning, L1, L2 ... length.

Claims (5)

A retainer that includes a pair of opposing wall portions opposed to each other and a pair of connecting wall portions that connect the opposing side edge portions of the opposing wall portions and have holes, and the internal space is used as a ventilation path for air-conditioning air; A shut damper disposed in the ventilation path and engaged with the hole by a support shaft, and the shut damper is in a state parallel or nearly parallel to the flow direction of the air for air conditioning. An air-conditioning register that is tilted between an open position that opens and a closed position that intersects the flow direction and abuts the opposing wall portions at a pair of edge portions to close the ventilation path. ,
In the position immediately before closing close to the closing position, only one of the end edges of the shut damper is configured to abut against the opposing wall.
The hole is constituted by a long hole extending in the flow direction,
An elastic portion for biasing the support shaft to one of the extending directions of the hole is further provided,
When tilting from the position immediately before closing to the closed position, the support shaft is moved in the hole against the elastic portion, so that the shut damper is tilted with the one end edge as a fulcrum. An air-conditioning register configured to bring an end edge portion of the air-conditioner into contact with the opposing wall portion. The elastic portion is provided so as to be integrally rotatable with the support shaft,
The air-conditioning register according to claim 1, wherein a support wall that abuts in a state in which the elastic portion is elastically deformed is provided at a location near the hole in the connection wall portion. A restriction wall is provided at a location facing the support wall across the hole in the connecting wall portion,
Between the support shaft and the elastic portion, it is rotated integrally with the elastic portion and the support shaft, and is pressed against the restriction wall by the elastic portion at the open position of the shut damper, and The air conditioning apparatus according to claim 2, wherein a cam that is separated from a main body wall portion that protrudes from the connection wall portion of the support wall and the restriction wall is provided at a tilt position different from the open position of the shut damper. register. The elastic portion is made of a spring attached to the connecting wall portion, and is always urged toward one of the extending directions of the hole by directly or indirectly contacting the support shaft in an elastically deformed state. The air-conditioning register according to claim 1. The support shaft is located in the center between the opposing wall portions,
In the shut damper, the length from the support shaft of the end edge portion that is in contact with the opposing wall portion at the position immediately before closing is the length of the end edge portion that is not in contact with the opposing wall portion at the position immediately before closing. The air-conditioning register according to any one of claims 1 to 4, wherein the air-conditioning register is set longer than a length from the support shaft.