JP6335076B2 - Ventilator for vehicle - Google Patents

Description

  The present invention relates to a vehicle ventilator that blows out air-conditioned air.

  Patent Document 1 discloses a vehicle ventilator in which a finisher is attached to a front end opening of a cylindrical case in which mechanical parts (louvers, shutter valves) for operating air blowing are arranged. In this ventilator, mounting pieces each having a claw portion at the tip and a hole portion formed at the base end side project from the finisher, while a claw portion and a hole portion are formed in order from the opening end side on the case peripheral surface, The finisher is attached to the front end opening of the case by engaging the pawl of the finisher with the hole of the case and engaging the pawl of the case with the hole of the finisher.

  And even if the claw part of the case detaches from the hole part of the finisher due to the impact at the time of the vehicle collision, the finisher claw part is hooked on the claw part of the case by this two-stage locking claw structure. It prevents jumping out and does not harm passengers.

JP-A-8-25955 (paragraphs 0009 and 0010, FIGS. 3, 5, and 6)

  However, in Patent Document 1 described above, when the impact is large, the claw portion of the finisher may be detached from the claw portion of the case, and the finisher is not completely prevented from popping out.

  By the way, a fitting hole may be formed in a finisher and another part may be fitted and attached. For example, a first mechanism part (louver, shutter valve) for operating air flow is arranged inside the case, and a second mechanism part (dial, link) linked to the first mechanism part is arranged outside the case. This is a case where an operation port through which the second mechanism part (dial) faces is formed in a fitting part which is a separate part. In this case, even if the two-stage locking claw structure as in Patent Document 1 is applied, the position of the claw part or the hole part is distorted due to manufacturing error, heat shrinkage, etc., and one claw part becomes the other claw part. It may happen that the proper locking relationship cannot be obtained due to the hindrance to the above, and there is a concern that the fitting part may pop out due to an impact at the time of a vehicle collision.

  Further, if the locking is not appropriate and is in a semi-engaged state, the claw portion is bent and comes into contact with the second mechanism part (dial), the movement of the second mechanism part (dial), and consequently the first mechanism part (louver). It is also conceivable that the movement of the shutter valve) will be hindered.

  The present invention has been made in view of such a point, and an object of the present invention is to prevent the fitting parts from falling off from the finisher by properly locking and not removing the locking claws. It is to prevent the pawls from interfering with the movement of the mechanical parts.

  In order to achieve the above object, the present invention is characterized by devising a two-stage locking claw structure and appropriately setting the positional relationship with a mechanical component.

  Specifically, the present invention is directed to a vehicle ventilator that blows out air-conditioned air, and has taken the following solution.

  That is, according to the first aspect of the present invention, a cylindrical case in which a first mechanism component for operating air flow is disposed inside, and a second mechanism component linked to the first mechanism component is disposed outside, and a front end of the case A finisher attached to the opening and having a fitting hole; and a fitting part fitted into the fitting hole of the finisher from the front side and having an operation port facing the second mechanism part. A first claw portion that is engaged with the back of the periphery of the fitting hole of the finisher and attaches the fitting component to the finisher, and is separated from the back side of the periphery of the fitting hole when the fitting component is attached. When the first claw portion is detached from the back side of the periphery of the fitting hole, a second claw portion is provided that is engaged with the back side of the periphery of the fitting hole. Close to the back surface of the second claw so as to regulate the bending of the Characterized in that it is arranged.

  The second invention is characterized in that, in the first invention, the second claw portion is more easily bent than the first claw portion and protrudes greatly in the locking direction.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the fitting part is provided with a protruding piece having a substantially U-shaped slit integrally protruding toward the back side, It is comprised by the tongue piece-like part enclosed by the slit, and the said 1st nail | claw part is each comprised by two places of the said slit outer part of the said tongue piece-like part both sides.

  According to the first invention, in a state where the fitting component is attached to the finisher, the first claw portion is locked to the back side of the fitting hole periphery of the finisher, and the second claw portion is located on the periphery of the fitting hole. Since it is separated from the back side, even if a position error has occurred between the first claw part and the second claw part due to manufacturing error or heat shrinkage, the second claw part can lock the first claw part. Appropriate locking relationship can be obtained without interruption.

  On the other hand, even if the first claw part is separated from the back side of the periphery of the fitting hole due to the impact at the time of the vehicle collision, the impact is applied at the time of the vehicle collision because the second claw part is locked to the back side of the periphery of the fitting hole. But the fitting parts do not pop out.

  In addition, since the second mechanism component is disposed in close proximity to the back surface of the second claw portion and the bending of the second claw portion is restricted by the second mechanism component, the fitting component does not come off the finisher. In addition, the second claw portion does not obstruct the movement of the second mechanism part, the movement of the first mechanism part is performed smoothly, and the air blowing operation of the first mechanism part is appropriately performed.

  According to the second invention, even if the second claw portion protrudes greatly in the locking direction, it is easily bent when the fitting component is attached to the finisher, so that attachment is not hindered. Further, even if the first claw part is detached from the back side of the periphery of the fitting hole due to an impact at the time of a vehicle collision, the second claw part is reliably locked to the back side of the periphery of the fitting hole.

  According to the third invention, the two first claws are engaged with the back of the peripheral edge of the fitting hole of the finisher, and the second claws are provided between them. The portion is surely positioned away from the peripheral edge of the fitting hole of the finisher, and the locking of the first claw portion is ensured. Moreover, the space | interval of a 2nd mechanism component and the back surface of a 2nd nail | claw part can be taken reliably.

FIG. 1 is a perspective view of an instrument panel to which a vehicle ventilator according to an embodiment of the present invention is applied. FIG. 2 is a perspective view of the ventilator as seen from the back side. 3A is a cross-sectional view taken along line AA in FIG. 2, and FIG. 3B is a view taken in the direction of arrow B in FIG. It is a front view of a ventilator. It is a disassembled perspective view before attaching a fitting component to a finisher. It is the perspective view which looked at the fitting component from the back side.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows an instrument panel 1 provided under a windshield in front of a driver's seat of a vehicle, and a rectangular opening 1a is formed at both ends in the vehicle width direction of the instrument panel 1 to blow out air-conditioned air. Ventilators 3 are respectively attached to the openings 1a.

  As shown in FIG. 2, the ventilator 3 includes a square cylindrical case 5, and a duct (not shown) is connected to the rear end opening (right end in FIG. 2) of the case 5, and the air conditioner generated by the air conditioning unit. Air is blown toward an air outlet 7 (see FIG. 4) provided at the front end opening (left end in FIG. 2) of the case 5. Reference numeral 9 denotes a sealing material that is attached to the rear end opening (right end in FIG. 2) of the case 5 and interposed between the duct and the duct.

  As shown in FIG. 4, a louver 11 including five vertical fins 11 a and three horizontal fins 11 b is disposed on the air outlet 7 side inside the case 5. The vertical fins 11a and the horizontal fins 11b are connected by links (not shown), respectively, and the operation knob 13 is moved to the left and right to move the vertical fins 11a in synchronization with the left and right to change the angle of the operation knob 13. The direction of the air-conditioning air blown out from the air outlet 7 is changed by rotating up and down and moving the horizontal fins 11b synchronously and changing the angle.

  As shown in FIG. 2, a shutter valve 15 is pivotally supported on the rear end opening (right end in FIG. 2) inside the case 5 so as to be pivotable up and down. The shutter valve 15 is connected to a disk-shaped dial 21 via links 17 and 19 disposed outside the case 5, and the shutter valve 15 is fully opened via the links 17 and 19 by rotating the dial 21. The airflow of the air-conditioning air is adjusted by rotating to a position, a fully closed position, or an intermediate position.

  Therefore, the louver 11 and the shutter valve 15 constitute a first mechanism component 23 for operating air blowing. Further, the links 17 and 19 and the dial 21 constitute a second mechanism part 25 linked to the shutter valve 15 (first mechanism part 23).

  A substantially rectangular ring-shaped finisher 27 is attached to the front end opening (left end in FIG. 2) of the case 5 as shown in FIGS. The upper edge of the finisher 27 is formed with three upper engagement holes 31 for engaging the three upper engagement claws 33 at the upper edge of the front end opening (left end in FIG. 2) of the case 5 (FIG. 2). reference). On the other hand, at the upper edge of the front end opening (left end in FIG. 2) of the case 5 are formed two upper hooking claws 29 that hook onto the upper edge of the opening 1a of the instrument panel 1 (see FIGS. 2 and 4). ).

  Further, the lower edge of the finisher 27 has two lower hooking claws 35 that are hooked on the lower edge of the opening 1a of the instrument panel 1, and two lower edges of the lower edge of the front end opening (left end in FIG. 2) of the case 5. Two lower engagement holes 37 with which engagement claws (not shown) are engaged are formed (see FIGS. 2 and 5).

  A side engagement hole 39 that engages a side engagement claw (not shown) on the side edge of the front end opening (left end of FIG. 2) of the case 5 is also formed on one side edge (left side of FIG. 5) of the finisher 27. ing.

  A recess 41 is formed on the inner side of the other side edge (right side in FIG. 5) of the finisher 27. A bottom surface 41a of the recess 41 is formed with a fitting hole 43 formed of a substantially rectangular long hole. As shown in FIG. 4, a fitting component 45 is fitted into 41 and the fitting hole 43 from the front side.

  The fitting part 45 is formed with an operation port 45a composed of a substantially rectangular long hole, and the dial 21 constituting a part of the second mechanism component 25 faces the operation port 45a (see FIG. 4). . As shown in FIG. 3, a rotary shaft 47 composed of two arcuate projecting pieces 47 a facing each other is integrally projected at the rotation center of the dial 21, and is inserted into the shaft hole 5 b of the support portion 5 a extending from the case 5. The rotary shaft 47 is inserted, and the dial 21 rotates about the rotary shaft 47. As shown in FIG. 2, an arc-shaped sliding surface 21a is formed on the side of the outer periphery of the dial 21, and a guide pin 49 protruding from the case 5 is in sliding contact with the sliding surface 21a. The rotation range of the dial 21 is defined within the range of the length of the sliding surface 21a. In addition, the rubber material 51 which a finger | toe hits at the time of dial 21 rotation operation is integrally formed in the location except the sliding surface 21a formation location of dial 21 outer periphery.

  On the upper and lower short sides of the fitting component 45, as shown in FIG. 6, one engagement claw 53 is integrally projected one by one, while on the upper and lower short sides of the recess 41 of the finisher 27. The engaging hole 55 is formed, and the fitting part 45 is attached to the finisher 27 by engaging the engaging claw 53 with the engaging hole 55.

  In the middle of one long side of the fitting part 45, as shown in FIGS. 5 and 6, a protruding piece 57 is integrally projected toward the back side. The projecting piece 57 is integrally formed with two first claw portions 59 and one second claw portion 61.

  Specifically, the protruding piece 57 is formed with a substantially U-shaped slit 57a, and the second claw portion 61 is formed of a tongue-shaped portion surrounded by the slit 57a, and the first claw The portions 59 are respectively configured at two locations on the outer side of the slit 57a on both sides of the tongue-like portion (second claw portion 61). Further, the second claw portion 61 is more easily bent than the first claw portion 59 because the three sides are surrounded by the slits 57a, and protrudes greatly in the locking direction.

  The first claw portion 59 is for attaching the fitting component 45 to the finisher 27 and is locked to the back side of the fitting hole peripheral edge 43a of the finisher 27 (see FIG. 3).

  The second claw portion 61 is separated from the back side of the fitting hole periphery 43a with the fitting component 45 attached, and opens a gap C1 with the fitting hole periphery 43a (see FIG. 3). When the first claw portion 59 is detached from the back side of the fitting hole peripheral edge 43a, the first claw portion 59 is locked to the back side of the fitting hole peripheral edge 43a. And the dial 21 which comprises a part of said 2nd mechanism component 25 has the protrusion 21b for space | interval adjustment of the dial 21 on the back surface of the said 2nd nail | claw part 61 so that the bending of the said 2nd claw part 61 may be controlled. Are arranged close to each other with a gap C2.

  In the middle of the other long side of the fitting part 45, a contact rib 63 is integrally projected so as to face the protruding piece 57, so that the fitting state of the fitting part 45 is stabilized. On the periphery of the fitting hole 43 of the finisher 27, a notch 43a for accommodating the protruding piece 57 and the abutting rib 63 is formed to face each other.

  In FIG. 3A, reference numeral 65 denotes a bush attached to the front end opening of the case 5, and a pin 11c protruding from the lateral fin 11b of the louver 11 is inserted into the bush 65 to rotatably support the lateral fin 11b. ing.

  To assemble the ventilator 3, first, the first mechanical component 23 (louver 11, shutter valve 15) and the second mechanical component 25 (links 17, 19, dial 21) are assembled to the case 5. Further, the fitting component 45 is attached to the finisher 27. In this mounted state, the first claw portion 59 of the fitting component 45 is locked to the back side of the fitting hole peripheral edge 43a of the finisher 27, but the second claw portion 61 is spaced from the back side of the fitting hole peripheral edge 43a. Are spaced apart. At the time of this assembly, the second claw portion 61 bends while slidingly contacting the fitting hole peripheral edge 43a, but at this stage there is nothing that obstructs the bending of the second claw part 61, and the fitting hole peripheral edge 43a smoothly Separated on the back side.

  Next, the finisher 27 to which the fitting component 45 is attached is attached to the front end opening (left end in FIG. 2) of the case 5. At this time, the upper engagement claw 33 of the case 5 is engaged with the upper engagement hole 31 of the finisher 27 and the lower engagement claw (not shown) of the case 5 is engaged with the lower engagement hole 37 of the finisher 27. Let Further, the side engaging claws (not shown) of the case 5 are engaged with the side engaging holes 39 of the finisher 27. Thereby, the ventilator 3 is assembled. In this assembled state, the dial 21 that constitutes a part of the second mechanical component 25 is disposed close to the back surface of the second claw portion 61 with a distance C2 between the distance adjustment protrusions 21b of the dial 21. (See FIG. 3). Therefore, when the ventilator 3 is assembled, the second claw portion 61 does not come into contact with the dial 21 and does not hinder the assembly of the ventilator 3.

  The ventilator 3 assembled in this manner hooks the upper latching claw 29 of the case 5 on the upper edge of the opening 1a of the instrument panel 1, and presses the ventilator 3 against the instrument panel 1 from this state, thereby finishing the finisher. 27 is latched on the lower edge of the opening 1 a of the instrument panel 1. As a result, the ventilator 3 is attached to the opening 1 a of the instrument panel 1.

  Thus, in this embodiment, the fitting part 45 is provided with the first claw part 59 and the second claw part 61 protruding, and the first claw part 59 is locked to the back side of the fitting hole peripheral edge 43a of the finisher 27. Then, the fitting component 45 is attached to the finisher 27. Since the second claw portion 61 is spaced apart from the back side of the fitting hole peripheral edge 43a with the fitting component 45 attached, a manufacturing error is generated between the first claw portion 59 and the second claw portion 61. Even if the position is misaligned due to heat shrinkage or the like, the second claw portion 61 does not interfere with the locking of the first claw portion 59 and an appropriate locking relationship can be obtained.

  On the other hand, even if the first claw portion 59 is detached from the back side of the fitting hole peripheral edge 43a due to an impact at the time of the vehicle collision, the second claw portion 61 is locked to the back side of the fitting hole peripheral edge 43a. Even if an impact is sometimes applied, the fitting part 45 can be prevented from popping out.

  Further, since the dial 21 constituting a part of the second mechanism component 25 is disposed close to the back surface of the second claw portion 61 with a gap C2, the bending of the second claw portion 61 at the time of a vehicle collision is dialed. 21, the second claw portion 61 is not detached from the back side of the fitting hole peripheral edge 43 a, and the fitting component 45 can be prevented from being detached from the finisher 27. In addition, the second claw portion 61 does not obstruct the movement of the dial 21, and the shutter valve 15, which is the first mechanical component 23, can smoothly move to appropriately perform the air volume adjustment operation of the shutter valve 15. it can.

  Further, since the second claw portion 61 is more easily bent than the first claw portion 59 and protrudes greatly in the locking direction, the second claw portion 61 can be easily bent when the fitting component 45 is attached to the finisher 27. Therefore, even if the first claw portion 59 is detached from the back side of the fitting hole peripheral edge 43a due to an impact at the time of a vehicle collision, the second claw portion 61 is securely fitted. Locks to the back side of the hole periphery 43a.

  In addition, a second claw portion 61 surrounded by a substantially U-shaped slit 57a is integrally provided on the protruding piece 57 of the fitting component 45, and the first claw is provided on both sides of the second claw portion 61 with the slit 57a interposed therebetween. Since the two claw portions 59 are integrally projected, the first claw portion 59 is securely fitted by securely separating the second claw portion 61 from the fitting hole peripheral edge 43a of the finisher 27 with the fitting component 45 attached. It can be locked to the back side of the joint hole periphery 43a. In addition, the distance C <b> 2 between the dial 21 constituting a part of the second mechanical component 25 and the back surface of the second claw portion 61 can be ensured.

  The present invention is useful for a vehicle ventilator that blows out air-conditioned air.

3 Ventilator 5 Case 11 Louver 15 Shutter valve 17, 19 Link 21 Dial 23 First mechanism part 25 Second mechanism part 27 Finisher 43 Fit hole 43a Fit hole peripheral edge 45 Fit part 45a Operation port 57 Projection piece 57a Slit 59 First 1 nail (2 locations on the outside of the slit)
61 Second claw (tongue piece)
C1 clearance C2 spacing

Claims (3)

A vehicle ventilator that blows out air-conditioned air,
A cylindrical case (5) in which a first mechanism part (23) for operating air flow is arranged inside, and a second mechanism part (25) linked to the first mechanism part (23) is arranged outside;
A finisher (27) attached to the front end opening of the case (5) and having a fitting hole (43);
A fitting part (45) having an operation port (45a) which is fitted into the fitting hole (43) of the finisher (27) from the front side and the second mechanism part (25) faces;
The fitting part (45) has a first claw part (59) which is engaged with the back side of the fitting hole periphery (43a) of the finisher (27) and attaches the fitting part (45) to the finisher (27). When the fitting part (45) is attached, the first claw portion (59) is separated from the back side of the fitting hole periphery (43a) by the impact at the time of a vehicle collision. A second claw portion (61) that is engaged with the back side of the fitting hole periphery (43a) when detached,
The second mechanism component (25) is disposed close to the back surface of the second claw portion (61) with a gap (C2) so as to restrict the bending of the second claw portion (61). Ventilator for vehicles. The vehicle ventilator according to claim 1,
The vehicle ventilator, wherein the second claw portion (61) is more flexible than the first claw portion (59) and protrudes greatly in the locking direction. The vehicle ventilator according to claim 1 or 2,
In the fitting part (45), a protruding piece (57) having a substantially U-shaped slit (57a) is integrally projected toward the back side,
The second claw portion (61) is composed of a tongue-like portion surrounded by the slit (57a),
The vehicle first ventilator is characterized in that the first claw portion (59) is formed at two locations on the outer side of the slit (57a) on both sides of the tongue-like portion.

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