JP6143450B2 - Air outlet for vehicles - Google Patents

Description

  The present invention relates to a vehicle air outlet that blows air into a vehicle interior, for example, and more particularly to a structure of a shut valve in a vehicle air outlet.

  The vehicle air outlet is attached to, for example, an instrument panel of an automobile, and a hollow case body connected to a duct that is an air blowing portion, and connection / disconnection of air supplied through the duct in the case body. And a shut valve that performs the operation.

  The shut valve is pivotally supported inside the case body so that the shut valve can be rotated by operating means. Then, by rotating the shut valve, the communication opening area of the air supplied from the duct can be controlled to be an appropriate opening area between the fully open state and the shut off state.

  The shut valve is configured to include a valve body that can be rotated by operating means, and a seal body that is attached to the valve body and can be pressed against the inner wall surface of the case body. The seal body has an outer peripheral portion extending outward from the outer peripheral edge of the valve body, and the outer peripheral edge of the outer peripheral portion is pressed against the inner wall surface of the case body in the fully closed position of the shut valve. It is configured. And the communication opening area of the air supplied from the duct is made into the interruption | blocking state.

  The mounting structure for attaching the seal body to the valve body includes a structure in which the seal body is attached to the valve body by heat welding or the like. Formed in a donut shape corresponding to the outer peripheral shape of the groove, and the center part side of the hollowed seal body is supported by being fitted in the annular groove, and the valve body is formed as a pair of plate-like bodies A configuration in which a sealing body is sandwiched between a pair of plate-like bodies has been conventionally employed.

  The seal body is made of urethane foam, felt, sponge, foamed neoprene rubber or the like. And in order to improve the airtightness between the case bodies in the vehicle air outlet, the area surrounded by the outer peripheral edge of the seal body is configured to be larger than the area surrounded by the inner wall surface of the case body.

  And as a sealing body, while being comprised so that press-contact is possible with respect to the inner wall surface of a case body, the softness | flexibility which can track the inner wall surface shape of a case body is calculated | required. At the same time, a certain degree of hardness is also required as a measure for improving durability and making it difficult for wind noise to sound.

  However, by increasing the hardness of the seal body, when turning the shut valve to the fully closed position and bringing the seal body into pressure contact with the entire inner wall surface of the case body, in particular, the corner portion formed in the case body. When the sealing body is brought into pressure contact, it is difficult to cause the sealing body to deform along the shape of the corner portion of the case body.

  If the corners of the seal body are bent into a shape that does not conform to the shape of the corner portion, gaps and wrinkles are generated between the corner portion of the case body and the seal body, resulting in airtightness. May be damaged, and may cause wind leakage.

  If the seal body vibrates due to wind leakage, it may cause abnormal noise. Further, when air flows through a gap formed between the corner portion of the case body and the seal body, an eddy current is generated and abnormal noise is generated. If these abnormal noises leak into the vehicle from the vehicle air outlet, the quietness in the vehicle will be destroyed.

  As an invention that eliminates air leakage when the shut valve is in the fully closed position, an invention of a shutter valve structure for a vehicle ventilator (see Patent Document 1) has been proposed.

  In the invention described in Patent Document 1, as shown in FIG. 6, a shutter valve 50 (corresponding to the shut valve in the present invention) is formed by a valve body 51 formed of a first resin and having a corner portion 53, A seal portion 52 (corresponding to a seal body in the present invention) formed of a second resin and disposed on the peripheral portion of the valve main body 51 is integrally formed.

  In each corner portion 53 of the seal portion 52, slits 54 that are radially cut are formed, and by forming the slit 54, the outer peripheral edge 55 of the seal portion 52 is discontinuous by the slit 54. It is formed as an outer periphery.

JP-A-10-95228

  In the invention described in Patent Document 1, slits 54 are provided in each corner portion 53 of the seal portion 52, so that when the shutter valve 50 is fully closed, the slit 54 is provided in each corner portion 53 of the seal portion 52. It is possible to prevent the occurrence of wrinkles by being deformed into a state where they are brought together. In particular, by forming the seal portion 52 with an elastic resin, the generation of wrinkles can be more effectively prevented.

  However, the seal portion 52 and the valve body 51 are configured by molding using different resins, so-called two-color molding. Since the two-color molding causes an increase in manufacturing cost, further improvement is required to reduce the manufacturing cost even if the two-color molding is performed.

  Further, when the seal portion 52 is configured without using an elastic resin, for example, when the felt, which is currently the mainstream material, is used as the material of the seal portion 52, the end on the open side of the slit 54 is widened. It will end up. When the shutter valve 50 is closed, the ends of the slits 54 overlap with each other, and a gap may be generated between the corner portion of the case body and the seal portion 52.

  Alternatively, the ends of the slit 54 may be opened apart from each other without being brought together. If the gap between the ends of the slit 54 is opened, an area where the seal part 52 is not in contact with the corner part of the case body is generated, and a gap is formed between the corner part of the case body and the seal part 52. It will also occur. If a gap is generated between the corner portion of the case body and the seal portion 52 in this manner, the shielding property and airtightness by the shutter valve 50 are impaired.

The invention of the present application solves these problems, and even if the sealing body is made of urethane foam, felt, sponge, foamed neoprene rubber, elastic resin, etc., there is a gap between the corner of the case body and the sealing body. In addition, an object of the present invention is to provide an air outlet for a vehicle that prevents wrinkles from occurring at the corners of the seal body and improves shielding and airtightness.

The object of the present invention can be achieved by the vehicle air outlet described in claims 1 and 2 .
That is, the vehicle air outlet according to the present invention is connected to a duct, a hollow case body in which the cross-sectional shape of the inner wall surface is formed in a rectangular shape, and is pivotally supported inside the case body, A vehicle air outlet having a shut valve that is controlled to an appropriate rotation position between a fully open position and a fully closed position by an operating means,
The shut valve has a valve body pivotally supported inside the case body, and a seal body attached to the valve body and capable of being pressed against the inner wall surface of the case body, The seal body has an outer peripheral portion extending outward from the outer peripheral edge of the valve body,
The entire outer peripheral edge of the seal body is configured in a continuous shape, and each corner portion of the seal body that is pressed against the inner wall surface of the corner portion of the case body is spaced from the outer peripheral edge of the seal body. Discontinuous portions penetrating the front and back surfaces of the sealing body are respectively formed in
The discontinuous portion is formed as a hole or a slit, and is a line-symmetric shape with respect to a line segment that bisects a corner of the seal body or a point-symmetric shape with a point on the line segment as a center Formed into
The main feature is that the outer peripheral edge of the seal body is in pressure contact with the inner wall surface of the case body at the fully closed position of the shut valve.

  Furthermore, the main feature of the present invention is that a part of the discontinuous portion is attached to the valve body.

  In the present invention, the entire outer peripheral edge of the sealing body is configured in a continuous shape, and each corner of the sealing body is formed with discontinuous portions such as openings, slits, cuts and cuts. Yes. The discontinuous part formed in each corner is formed in a part separated from the outer peripheral edge of the seal body.

  By configuring the seal body in this manner, when the shut valve is rotated to the fully closed position, the entire outer peripheral edge of the seal body can be brought into pressure contact with the inner wall surface of the case body. Moreover, since the outer peripheral edge of the corner portion of the seal body is also continuous at the corner portion of the case body, one seal body is always inside the corner portion of the seal body at the fully closed position of the shut valve. It is in a state of being pressed against the wall surface.

  In addition, the discontinuous portion formed at each corner is formed at a portion separated from the outer peripheral edge of the seal body. Therefore, when the shut valve is rotated to the fully closed position, the seal body is the corner of the seal body. By press-contacting the inner wall surface, the deformation can be performed so that both side edges of the discontinuous portions overlap each other instead of generating wrinkles, and the discontinuous portions can be closed. And when both side edges overlap and overlap, the discontinuous part of a sealing body is plugged and airtightness can be maintained.

As described above, in the present invention, when the shut valve is rotated to the fully closed position, the entire outer peripheral edge of the seal body is in pressure contact with the inner wall surface of the case body, and particularly in the corner portion of the case body. There is no gap between the inner wall surface and the sealing body. And the discontinuous part formed in the corner | angular part of a sealing body can be closed. And the corner | angular part of a sealing body can press-contact to the corner part of a case body smoothly.

  According to the configuration of the present invention, the bending at the corner portion of the seal body easily follows the corner portion shape of the case body, and a gap is hardly generated between the corner portion of the seal body and the corner portion of the case body. In addition, wrinkles are less likely to occur at the corners of the seal body, and a vehicle air outlet with improved shielding and airtightness can be obtained.

  Furthermore, even for a distorted corner portion shape, the corner portion of the sealing body can be deformed by appropriately selecting the shape of the discontinuous portion. In other words, instead of generating wrinkles, the corners of the sealing body are deformed following the distorted corner shape by deforming so that the side edges forming the discontinuous portions overlap each other. be able to.

  Thereby, the variation at the time of manufacture of a case body and a shut valve can also be reduced. Further, even when the shut valve rotates from the fully closed position to the fully open position, the pressure contact state between the corner portion of the seal body and the corner portion of the case body can be smoothly released.

  In the present invention, the shape of the discontinuous portion can be formed in a hole shape or slit shape penetrating between the front and back surfaces of the seal body, a cut shape in which a cut is made in the seal body, or the like. And since the shape of the discontinuous portion can be formed into an appropriate shape, even if the shape of the corner portion of the case body is a distorted corner portion shape, the seal body caused by the corner portion of the case body Generation of wrinkles at the corners can be prevented. And the wrinkle which is going to generate | occur | produce can be absorbed by the deformation | transformation of a discontinuous part.

In the present invention, the shape of the discontinuous portion is formed in a line-symmetric shape with respect to a line segment that bisects the corner portion of the seal body or a point-symmetric shape centered on a point on the line segment. be able to.
Generally, when the shut valve is rotated to the fully closed position, a pressing force acts on the corners of the seal body from both side surfaces of the corner portion of the case body. And the wrinkles generate | occur | produce in the corner | angular part of a sealing body by the pressing force which acts from this both sides | surfaces.

  In the present invention, the discontinuous part may be formed in a line-symmetrical shape with respect to a line segment that bisects the corner of the seal body or a point-symmetrical shape centered on a point on the line segment. Therefore, wrinkles generated at the corners of the seal body can be efficiently absorbed by the deformation of the discontinuous portions.

  In this invention, it can be set as the structure which attached the partial site | part of the discontinuous part to the valve body. By comprising in this way, the edge part by the side of the valve body in a discontinuous part can be fixed. Then, the both side edges of the discontinuous portion are deformed so that they overlap each other with respect to both side edges of the discontinuous portion between the end portion close to the outer peripheral edge side of the seal body and the end portion on the valve body side. Can be performed efficiently. Wrinkles generated at the corners of the seal body can be efficiently absorbed by the discontinuous portions.

  In addition, since the generation of wrinkles can be absorbed even inside the seal body, the airtightness can be further improved. Even if the discontinuity is not completely closed on the inner side of the seal body, the inner side of the seal body is covered with the valve body, so the discontinuity of the discontinuity covered by the valve body It is possible to prevent air from leaking from the site.

It is a perspective view which shows the opening / closing apparatus of the shut valve in the air outlet for vehicles. (Example 1) It is a perspective view which shows the state before the assembly of a shut valve. (Example 1) It is a top view which shows the shape of the opening as a discontinuous part. (Example 1) It is a side view which shows the attachment state of a seal body. (Example 2) It is a side view which shows the other attachment state of a sealing body. (Example 2) It is the perspective view of the shutter valve which cut and showed the valve body and the seal part partially. (Conventional example)

  Preferred embodiments of the present invention will be specifically described below with reference to the accompanying drawings. As the configuration of the seal body in the vehicle air outlet according to the present invention, in addition to the shape and configuration described below, if the shape and configuration can solve the problems of the present invention, those shapes and configurations are adopted. can do. For this reason, this invention is not limited to the Example demonstrated below, A various change is possible.

  FIG. 1 shows a case body 1 of a vehicle air outlet for an automobile and a shut valve operating mechanism 2 for operating a shut valve 3 rotatably disposed in the case body 1. The case body 1 is connected to an air duct (not shown) on the left side as viewed in FIG. 1, and an air outlet 1a is formed in the opening on the right side as a discontinuous portion. The inner wall surface is formed in a hollow shape having a substantially rectangular cross section toward the front side. Further, a louver device (not shown) is attached to the air outlet 1a, and the air direction of the air blown out from the air outlet 1a can be adjusted.

  The shut valve operation mechanism 2 includes an operation dial 5 supported by a rotation support shaft 5a protruding from the side surface of the case body 1, and a link that transmits the rotation of the operation dial 5 to the rotation shaft 3a of the shut valve 3. It is the structure provided with the members 6-8. The link members 6 to 8 constitute a link mechanism. One end portion side of the link member 6 is rotatably supported by a portion of the operation dial 5 that is eccentric with respect to the rotation support shaft 5a, and the other end portion side of the link member 7 via the connecting shaft 9a. It is rotatably supported at one end.

  Further, the other end portion side of the link member 7 is rotatably supported by one end portion of the link member 8 via the connecting shaft 9b. The link member 8 is formed in a configuration that is refracted in an L shape, and the other end is connected to the rotating shaft 3a of the shut valve 3. A pair of rotating shafts 3a and 3a in the shut valve 3 are respectively supported on the side surfaces of the case body 1 so as to be rotatable.

  Then, as shown by the arrow in FIG. 1, when the operation dial 5 is rotated counterclockwise, the shut valve 3 can be rotated toward the fully closed position. Further, when the operation dial 5 is rotated in the clockwise direction, the shut valve 3 can be rotated to the fully open position.

  The configuration of the shut valve operating mechanism 2 does not constitute a characteristic part in the present invention. Therefore, as the configuration of the shut valve operating mechanism 2, a conventionally known appropriate configuration can be adopted in addition to the configuration described above. Further, instead of the configuration in which the shut valve 3 is rotated about the horizontal axis, a configuration in which the shut valve 3 is rotated about the vertical axis may be employed.

The shut valve 3 is configured to include a seal body 15 attached to the valve body 10. As shown in FIG. 2, the seal body 15 is sandwiched between a pair of body members 10 a and 10 b constituting the valve body 10. An outer peripheral portion 16 extending outward from the outer peripheral edge 10c of the valve main body 10 is configured, and the outer peripheral edge side of the outer peripheral portion 16 is not restricted by the valve main body 10.

  Each corner portion 17 of the seal body 15 is formed with an opening 18 as one form of a discontinuous portion, and when the shut valve 3 rotates toward the fully closed position, the corner portion 1b of the case body 1 The wrinkles generated at each corner 17 of the seal body 15 are absorbed by the deformation of the opening 18.

  The present invention is characterized in that an opening 18 as a discontinuous portion is formed in each corner portion 17 of the seal body 15, and as the opening 18 as shown in FIGS. 3 (a) to 3 (e), It can be formed in the hole-shaped openings 18 to 20, or can be formed as the slit-shaped openings 21 to 23. Hereinafter, the configuration of the openings 18 to 23 formed at each corner of the seal body 15 will be specifically described.

  As shown in FIG. 2, the shut valve 3 includes a valve body 10 (see FIG. 1) and a seal body 15. The valve body 10 is composed of a pair of body members 10a and 10b made of a plate-like body, and is composed of molding means such as injection molding of ABS resin, polypropylene resin or the like. The sealing body 15 sandwiched between the pair of main body members 10a and 10b is formed by forming or forming foam neoprene rubber, foamed urethane foam, elastic resin material, felt, sponge, or the like into a desired shape, etc. Can be configured.

  The main body member 10a constituting the valve main body 10 is formed with a plurality of engaging recesses 12 that respectively fit into the plurality of engaging protrusions 11 formed on the inner surface of the main body member 10b. In addition, rotation shafts 3a are formed at the centers of both end portions of the main body member 10b.

  In the seal body 15 sandwiched between the main body member 10a and the main body member 10b, a plurality of engagement holes 24 into which the engagement protrusions 11 are fitted are formed at portions corresponding to the engagement protrusions 11. The seal body 15 is placed on the inner surface of the main body member 10b, and the engagement holes 24 are fitted into the plurality of engagement protrusions 11. Thereafter, the inner surface side of the main body member 10a is covered from above the seal body 15, and the engagement recess 12 of the main body member 10a is fitted to the engagement protrusion 11 of the main body member 10b. As a result, as shown in FIG. 1, the shut valve 3 can be configured in which the pair of body members 10a and 10b are sandwiched and attached in a sandwich shape.

  A part of each opening 18 formed in each corner 17 of the seal body 15 is configured to be sandwiched between a pair of main body members 10a and 10b. With this configuration, the end of each opening 18 on the valve body 10 side can be fixed. Then, as the opening 18, both side edges of the opening 18 are deformed between the end of the opening 18 sandwiched between the pair of body members 10 a and 10 b and the end close to the outer peripheral edge 16 a side of the seal body 15. Can be made possible.

  As shown in FIG. 1, when the shut valve 3 is rotated to the fully closed position, wrinkles generated at each corner portion 17 of the seal body 15 are wrinkled between both side edges of the opening 18 forming the opening 18. Can be efficiently absorbed by deforming so as to overlap each other. By deforming the side edges of the opening 18 so as to overlap each other, the opening 18 is closed, and the airtightness of the shut valve 3 in the fully closed position can be greatly enhanced.

  Further, since the outer peripheral edge 16a of the seal body 15 is continuous at each corner portion 17, one seal body 15 is always attached to the inner wall surface of the case body 1 at each corner portion 1b of the case body 1. It is in a state of pressure contact. Since it can be configured in this manner, it is possible to improve the airtightness of the shut valve 3 in the fully closed position, and to provide an air outlet for a vehicle that has excellent shielding properties and sound insulation properties.

Thus, the bending at each corner portion 17 of the seal body 15 easily follows the shape at the corner portion 1b of the case body 1, so each corner portion 17 of the seal body 15 and each corner portion 1b of the case body 1 It becomes difficult to generate a gap between them. In addition, since it is difficult for wrinkles to occur at each corner 17 of the seal body 15, it is possible to configure the shut valve 3 with high airtightness.

  Further, it is possible to reduce the vibration generated at each corner portion 17 of the seal body 15 generated by the formation of the gap and the generation of the vortex generated in the gap. As a result, it is possible to reduce the occurrence of abnormal noise caused by these causes.

  1 and 2, the opening 18 is illustrated with respect to the shape of an elongated hole in which a line segment L that bisects each corner portion 17 of the seal body 15 is line-symmetrical. 1. It is not limited to the shape described in FIG. It can be formed as a round opening 19 as shown in FIG. 3 (a), or can be formed as a rectangular opening 20 as shown in FIG. 3 (b). It can also be formed as shown in FIG.

  Regardless of whether the openings formed in the respective corners 17 of the seal body 15 are round openings 19 or rectangular openings 20, the openings 19 and 20 are the outer peripheral edges 16a of the seal body 15. It is necessary to form it in a part that does not come into contact with. The openings 19 and 20 preferably have a configuration in which the line segment L that bisects each corner 17 of the seal body 15 has a line-symmetric shape.

  Further, instead of forming a hole in each corner portion 17 of the seal body 15, as shown in FIGS. 3C to 3E, the slit-shaped openings 21 to 23 cut by a sharp blade are used. It can also be formed as follows. When the slit-shaped openings 21 to 23 are formed, it is desirable to form the cutout holes 21a to 23a at both ends of the slit-shaped openings 21 to 23 so that the both ends of the slit cannot be unraveled. Become. Further, by forming the cutout holes 21a to 23a, the slit-like openings 21 to 23 that are deformed by the corner portion 1b of the case body 1 can be easily deformed starting from the cutout holes 21a to 23a. .

  As shown in FIGS. 3C and 3D, the slit-shaped openings 21 and 22 are on the line segment L that bisects each corner portion 17 of the seal body 15 or the line segment L is lined. It is desirable to form a symmetrical arrangement. Further, as shown in FIG. 3E, the slit-like opening 23 can be formed in an arrangement configuration in which the points on the line segment L are point-symmetric. Although FIG. 3E shows the slit-shaped opening 23 formed in an S shape, it can be formed as an inverted S-shaped opening or can be formed in a zigzag shape. .

  As the openings 18 to 23 formed in the respective corners 17 of the seal body 15, the shapes of the openings 18 to 23 are the same even if the shape of each corner 1b of the case body 1 is, for example, a distorted corner. By appropriately selecting, the corner portion 17 of the seal body 15 can be deformed by following the distorted corner portion shape. Then, instead of generating wrinkles, the side edges of the openings 18 to 23 are deformed so as to overlap each other, thereby forming a gap while following the corner portion 17 of the seal body 15 to the distorted corner portion shape. It can be transformed without

  In addition, it is possible to reduce the vibration generated in the corner portion 17 of the seal body 15 generated by the formation of the gap and the generation of the vortex generated in the gap. And generation | occurrence | production of the abnormal sound which generate | occur | produces by these causes can be reduced.

  An embodiment according to Example 2 of the present invention will be described with reference to FIGS. In the first embodiment, the configuration in which the seal body 15 is sandwiched between the pair of main body members 10a and 10b has been described. In the second embodiment, the seal bodies 26 and 29 have different mounting configurations, and the valve It is configured to be attached to the main bodies 25 and 27.

  As a configuration other than the mounting configuration of the sealing body and the configuration related to the mounting configuration, the configuration in the first embodiment or a conventionally known configuration can be adopted. Further, the openings formed at the respective corners of the seal bodies 26 and 29 are not shown in FIGS. 4 and 5, but may be formed by appropriately selecting the shapes of the openings 18 to 23 described in the first embodiment. it can.

  In FIG. 4, the seal body 26 is attached to one surface of the valve body 25. The valve body 25 can pivotally support the valve body 25 in a case body (not shown) by inserting a rotation shaft into shaft insertion holes 25a and 25b formed on the left and right sides in the drawing. The seal body 26 is formed in an annular shape in which a central portion is cut out in a plan view, and an annular inner portion is attached to the valve body 25 by heat welding or the like. The annular outer portion is formed in a shape extending from the outer peripheral edge of the valve body 25.

  In FIG. 5, an annular groove 27a is formed on the outer peripheral surface of the valve body 27, and the seal body 29 is formed in an annular shape in plan view. The inner end face side of the annular seal body 29 is fitted into and attached to the annular concave groove 27a. The valve body 27 is pivotally supported in a case body (not shown) by a rotating shaft 28 erected in a direction perpendicular to the paper surface.

  By configuring the seal bodies 15, 26, and 29 as in the present invention, the sealing performance of the shut valve 3 is improved, and the quality as a vehicle air outlet can be greatly improved.

  The present invention can be suitably applied as a configuration of a shut valve in a vehicle air outlet.

DESCRIPTION OF SYMBOLS 1 ... Case body, 1b ... Corner part, 2 ... Shut valve operating mechanism, 3 ... Shut valve, 10 ... Valve body, 10a, 10b ... Main body member, 15 ... Seal body, 16 ... outer peripheral part, 17 ... corner part, 18, 19, 20 ... opening, 21, 22, 23 ... slit-like opening, 25 ... valve body, 26 ... -Seal body, 27 ... Valve body, 29 ... Seal body, 50 ... Shutter valve, 51 ... Valve body, 52 ... Seal part, 54 ... Slit, L ... Two Isoline.

Claims (2)

A hollow case body that is connected to the duct and has a rectangular inner wall cross-sectional shape, and is pivotally supported inside the case body so that it can be rotated between the fully open position and the fully closed position by the operating means. An air outlet for a vehicle having a shut valve controlled to an appropriate rotation position at
The shut valve has a valve body pivotally supported inside the case body, and a seal body attached to the valve body and capable of being pressed against the inner wall surface of the case body,
The seal body has an outer peripheral portion extending outward from the outer peripheral edge of the valve body,
The entire outer peripheral edge of the seal body is configured in a continuous shape, and each corner portion of the seal body that is pressed against the inner wall surface of the corner portion of the case body is spaced from the outer peripheral edge of the seal body. Discontinuous portions penetrating the front and back surfaces of the sealing body are respectively formed in
The discontinuous portion is formed as a hole or a slit, and is a line-symmetric shape with respect to a line segment that bisects a corner of the seal body or a point-symmetric shape with a point on the line segment as a center Formed into
An air outlet for a vehicle, wherein an outer peripheral edge of the seal body is in pressure contact with an inner wall surface of the case body at a fully closed position of the shut valve. The portion site of discontinuities, air outlet for a vehicle according to claim 1, characterized in that attached to the valve body.

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