JP6504853B2 - Ventilator structure - Google Patents

Description

  The present invention relates to a ventilator structure.

  In vehicles such as automobiles, an instrument panel is installed at the front of the vehicle compartment. The instrument panel is provided with a ventilator (grill) for blowing conditioned air into the vehicle compartment.

  In such a ventilator structure (ventilator structure), a louver blade is provided inside an air blowout cylinder having a spherical shell-like outer peripheral surface with respect to a spherical seat formed on the front end side of a cylindrical ventilator body. There is a movable louver mounted so as to be pivotable in all directions.

  At this time, a ball joint having a ball-like portion provided on one of the ventilator main body and the movable louver and a ball receiving portion provided on the other is provided at the center position of the spherical seat and an outer peripheral surface of the ball-like portion A friction generating member for generating friction is interposed between the inner peripheral surface of the ball receiving portion, to determine the rotation center of the movable louver, and to generate a required operation load. (See, for example, Patent Document 1 and Patent Document 2).

JP 2014-34280 A US2013 / 0210333A1

  However, in the ventilator structure described in Patent Document 1, the friction generating member is merely interposed between the outer peripheral surface of the ball-shaped portion and the inner peripheral surface of the ball receiving portion. Therefore, the operation load due to the friction generation member is changed due to temperature change, deterioration with time, etc., and the operation load can not be stabilized.

  Further, in the ventilator structure described in Patent Document 2 above, the friction generating member is interposed in the peripheral portion excluding the top of the ball, and the biasing member is directed toward the top of the ball. Since the biasing was performed, the installation position of the friction generating member and the biasing direction by the biasing member did not match, and the friction could not be generated efficiently. In addition, the change in the area and the positional relationship of the friction generation surface depending on the angle of the movable louver causes a problem that the operation load is changed and the operation feeling is bad.

  Therefore, the main object of the present invention is to solve the above-mentioned problems.

In order to solve the above problems, the present invention is
A movable louver having a louver blade attached to the inside of an air blowing cylinder having a spherical outer peripheral surface is disposed with respect to a spherical seat formed on the tip side of a cylindrical ventilator main body, and the movable louver is , Installed in the ventilator body in all directions via a universal joint ,
Wherein the center position of the spherical seat, and the ventilator body and a ball-shaped portion provided on one of the movable louver, a ventilator structure with a ball joint having a ball receiving portion provided on the other,
Between the outer peripheral surface of the ball-like portion and the inner peripheral surface of the ball receiving portion, a friction generating member for generating friction is interposed so as to wrap at least the top of the ball-like portion,
Furthermore, and said ball receiving portion and said ball-shaped portion, in a state in which the interposed friction generating member therebetween, by providing a biasing member capable of generating a biasing force toward the top of the ball-shaped portion,該付 It is characterized in that the biasing direction by the biasing member is matched with the installation position of the friction generating member .

  According to the present invention, with the above-described configuration, it is possible to efficiently generate the operation load, and to suppress and prevent the change of the operation load due to temperature change or aging deterioration.

It is a whole perspective view of the ventilator structure concerning this embodiment. It is a whole perspective view which shows the state which performed wind direction adjustment in FIG. It is a whole perspective view which shows the state which removed the movable louver of FIG. It is a longitudinal cross-sectional view of FIG. FIG. 5 is a partial enlarged cross-sectional view of FIG. 4; It is an expansion perspective view of the universal joint part of FIG. FIG. 6 is a perspective view of a biasing shaft including a shut valve and a valve opening and closing mechanism. It is a disassembled perspective view of FIG. It is the elements on larger scale of the rotation transmission part of FIG. It is the elements on larger scale of the valve opening and closing mechanism of FIG.

Hereinafter, the present embodiment will be described in detail with reference to the drawings.
1 to 10 are for describing this embodiment.

  <Configuration> The configuration of this embodiment will be described below.

  In vehicles such as automobiles, an instrument panel is installed at the front of the vehicle compartment. The instrument panel is provided with a ventilator (grill) for blowing conditioned air into the vehicle compartment.

  And, as shown in FIG. 1 and FIG. 2, the structure (ventilator structure) of such a ventilator has a spherical shell-like outer periphery with respect to the spherical seat 2 formed on the tip side of the cylindrical ventilator body 1. There is one in which a movable louver 5 having a louver blade 4 attached to the inside of an air blowout cylinder portion 3 having a surface is rotatably provided in all directions.

  At this time, as shown in FIG. 3 to FIG. 5 (mainly referring to FIG. 5), at the central position of the spherical seat 2, the ball shaped portion 6 provided on one of the ventilator main body 1 and the movable louver 5 A ball joint 8 having the provided ball receiving portion 7 is provided, and a friction generating member 9 for generating friction is interposed between the outer peripheral surface of the ball-like portion 6 and the inner peripheral surface of the ball receiving portion 7 It is like that.

  Here, a holding ring 11 (see FIG. 1) for holding the movable louver 5 housed in the spherical seat 2 is attached to the tip of the ventilator main body 1. The holding ring 11 is locked and fixed to the ventilator body 1 by the claw locking portion 12. Further, a seal portion 1 a for the air conditioning duct is provided on the outer periphery of the deep end portion of the ventilator main body 1.

  As shown in FIG. 3, at the central position of the spherical seat 2, a universal joint 13 for rotatably connecting the ventilator main body 1 and the movable louver 5 is provided. The universal joint 13 is connected to each other so as to be tiltable in two directions via a pair of joint shaft portions 16 and 17 orthogonal to each other and a ring-shaped intermediate connection member 18 between a pair of bifurcated joint pieces 14 and 15. It is assumed. The pair of joint pieces 14 and 15 of the universal joint 13 are provided on the ventilator body 1 and the movable louver 5 respectively.

  As shown in FIGS. 4 and 5, the above-described ball joint 8 is provided inside (the intermediate connection member 18 of) the universal joint 13. In this case, the ball-shaped portion 6 is provided on the side of the ventilator main body 1 and the ball receiving portion 7 is provided on the side of the movable louver 5. The ball receiving portion 7 is in the form of a hollow sphere capable of concentrically accommodating the ball portion 6 therein. However, the ball-shaped portion 6 and the ball receiving portion 7 may be provided opposite to the above.

  As described above, by providing the ball joint 8 and interposing the friction generation member 9 between the ball-shaped portion 6 and the ball receiving portion 7 which constitute the ball joint 8, the ball joint 8 rotates the movable louver 5. Since the friction generating member 9 serves as a single friction generation source with respect to the rotation of the movable louver 5 in all directions, the rotation of the movable louver 5 is stabilized, and the friction depends on the rotation direction and angle of the movable louver 5. There is no such thing that changes. On the other hand, for example, in the case where only the universal joint 13 is provided without providing the ball joint 8, the positional deviation occurs when a slight positional deviation is made between the two orthogonal joint shaft portions 16 and 17 of the universal joint 13. Or the friction is different depending on the rotation direction and the angle of the movable louver 5, and the operation feeling is poor.

  In contrast to the basic configuration as described above, in this embodiment, the following configuration is provided.

(1) As shown in FIG. 5, between the outer peripheral surface of the ball 6 and the inner peripheral surface of the ball receiver 7, at least the ball 6 is provided with the friction generating member 9 for generating friction described above. Intervene to wrap around the top of the
The biasing member 22 is capable of generating a biasing force toward the top of the ball portion 6 with the friction generating member 9 interposed between the ball portion 6 and the ball receiving portion 7. Set up.

  Here, the friction generation member 9 is integrally provided, for example, on (the entire surface of) the outer peripheral surface of the ball-shaped portion 6 by two-color molding or the like. Thus, by integrally forming the friction generation member 9 in the ball-shaped portion 6 by two-color molding, the friction generation member 9 has a uniform thickness, high accuracy, and good adhesion to the ball-shaped portion 6 . The friction generation member 9 is formed of a rubber-based material such as an elastomer. Incidentally, structurally, the friction generating member 9 may be integrally provided on the inner peripheral surface of the ball receiving portion 7 by two-color molding or the like, or between the ball shaped portion 6 and the ball receiving portion 7 as a separate part. It is also possible to install in

  The top of the ball-shaped portion 6 is the position on the most front side of the ball-shaped portion 6. Alternatively, it is the axial center position 21 or its peripheral portion at the tip of the biasing shaft 33 described later.

(2) More specifically, the ball portion 6 is held movably in the axial direction 32 of the ventilator main body 1 with respect to the shaft holding portion 31 provided at the axial center position of the ventilator main body 1 It is formed at the tip of the biasing shaft 33.
The biasing member 22 is capable of biasing the biasing shaft portion 33 toward the distal end side between the shaft holding portion 31 and the flange portion 34 formed on the biasing shaft portion 33. Be intervened.

  Here, the shaft holding portion 31 is provided at a position on the back side of the central position (the position of the ball joint 8) of the spherical seat 2 in the ventilator main body 1. The shaft holding portion 31 is provided as a cylindrical space (cylindrical space) extending in the axial direction 32 of the ventilator main body 1. Then, a flange portion 34 (piston-like) to be inserted into the inside of the cylindrical space is integrally formed at an intermediate portion of the biasing shaft portion 33. The biasing member 22 is, for example, a coil spring (compression spring) housed in a compressed state between the rear surface of the flange portion 34 and the bottom of the shaft holding portion 31.

(3) As shown in FIG. 4 (see also FIG. 7 and FIG. 8 together), the operation unit 41 is provided so as to be rotatable with respect to the movable louver 5.
Further, between the ball-shaped portion 6 and the ball receiving portion 7, a rotation transmitting portion 42 for transmitting a rotation operation to the operating portion 41 to the biasing shaft portion 33 is provided.
Further, an openable / closable shut valve 43 is attached to the rear end of the ventilator main body 1.
Between the shut valve 43 and the rear end of the biasing shaft 33, a valve opening / closing mechanism 44 is provided for opening / closing the shut valve 43 by rotation of the biasing shaft 33.

  Here, the operation unit 41 is a knob installed at the center position of the front side portion of the movable louver 5 and has a cap shape and a joint piece on the movable louver 5 side as shown in FIG. A plurality of claws 45 erected to form a cylindrical shape from the base of 14 are engaged so as to be able to perform a twisting operation around an axis. Then, as shown in FIG. 7, the above-mentioned ball receiving portion 7 is connected to the center position of the cap-like operation portion 41 via the connecting portion 46.

  As shown in FIG. 9, the rotation transmitting portion 42 is formed inside the ball receiving portion 7 and a slide shaft portion 47 extending in the radial direction, which is integrally protruded from both sides of the ball portion 6. And a slide groove 48 for guiding the movement of the slide shaft 47. In this case, the slide shaft 47 is parallel to the joint shaft 17 of the universal joint 13. The slide groove 48 has an arc shape extending in the circumferential direction through the top of the ball receiving portion 7.

  As shown in FIGS. 7 and 8, the shut valve 43 can open and close two semicircular valve pieces 51 whose half of the cross-sectional shape at the back of the ventilator main body 1 is half the hinge shaft 52. Thus, the end of the hinge shaft 52 is pivotally supported by the ventilator main body 1.

  The valve opening and closing mechanism 44 has a bevel gear 53 attached to the rear end of the biasing shaft 33 and a partial gear 54 attached to each valve piece 51. The partial gear 54 meshes with the bevel gear 53 to open and close the valve piece 51. In this case, the bevel gear 53 is integrally rotated with respect to the rear end portion of the biasing shaft portion 33, and is retained in the axial direction 32 via the claw portion 55.

(4) As shown in FIG. 5, the click feeling of rotating integrally with the biasing shaft portion 33 while pressing against the shaft holding portion 31 by the biasing force of the biasing member 22 to the biasing shaft portion 33 A generating plate 61 is provided.
Between the plate 61 for click feeling generation and the shaft holding portion 31, the click feeling generating lock portion 62 capable of generating a click feeling by being locked at the open / close position of the shut valve 43 is provided.

  Here, the click feeling generation plate 61 is interposed between the rear end portion of the biasing member 22 in the shaft holding portion 31 and the bottom portion of the shaft holding portion 31. Between the click feeling generating plate 61 and the shaft holding portion 31, a spline portion or the like formed of a rotation preventing spline groove 65 and a spline key 66 is provided. Further, the click feeling generating locking portion 62 is a protrusion 63 formed on one of the contact surfaces of the click feeling generating plate 61 and the bottom of the shaft holding portion 31 and a recess 64 formed on the other. . In addition to the open / close position of the shut valve 43, the click feeling generating locking portion 62 may be provided at an intermediate position thereof.

<Operation> The operation of this embodiment will be described below.
By rotating the movable louver 5 in the spherical seat 2 with respect to the ventilator main body 1, the wind direction can be adjusted in all directions. At this time, when the wind direction is adjusted by holding the operation unit 41 of the movable louver 5, it is easy to operate. The rotation of the movable louver 5 with respect to the ventilator main body 1 is performed around the ball joint 8.

  And, when the wind direction of the movable louver 5 is adjusted by the friction generated between the ball-shaped portion 6 provided on one of the ventilator main body 1 and the movable louver 5 and the ball receiving portion 7 provided on the other, it is necessary. The operation load of is obtained, and the orientation of the movable louver 5 is maintained.

  <Effects> According to this embodiment, the following effects can be obtained.

  (1) In the above, particularly, the friction generating member 9 is provided between the ball-shaped portion 6 and the ball receiving portion 7 which constitute the ball joint 8 so as to wrap the top of the ball-shaped portion 6, The biasing member 22 is provided to generate a biasing force toward the top of the disc. As a result, the installation position of the friction generating member 9 and the biasing direction by the biasing member 22 coincide with each other, so that the friction can be generated efficiently. Moreover, as described above, by efficiently urging toward the friction generation member 9, it is possible to suppress and prevent the change of the operation load due to the temperature change and the aged deterioration, and always stabilize the operation load. It becomes possible.

  Further, the friction generating member 9 was provided at the top of the ball-shaped portion 6. Thereby, even when the angle between the ball 6 and the ball receiver 7 changes due to the wind direction adjustment, the portion (friction generation surface) in which the ball 6 and the ball receiver 7 sandwich the friction generation member 9 The area can be kept constant at all times. That is, the area of the friction generation surface does not change depending on the direction of the movable louver 5. Therefore, the movable louver 5 can always be rotated with the same friction in all directions, and a stable operation feeling can be obtained.

  (2) Then, the above-mentioned ball-like portion 6 is formed at the tip of the biasing shaft 33, and the biasing member 22 is biased toward the tip of the biasing shaft 33. As a result, the biasing member 22 can be provided on the ventilator main body 1 without difficulty, and biasing can be performed in a direction parallel to the top of the ball-shaped portion 6. Further, the friction generating member 9 can be easily provided at the position of the top of the ball-shaped portion 6.

  (3) The shut valve 43 can be opened and closed via the rotation transmitting portion 42 in the ball joint 8, the biasing shaft portion 33, and the valve opening / closing mechanism 44 by turning (twisting) the operation portion 41. I was able to do it. Therefore, the opening / closing mechanism of the shut valve 43 can be incorporated without difficulty in the above-described ventilator structure in which the friction generation member 9 is biased at the top of the ball joint 8.

  (4) The click feeling generation plate 61 and the click feeling generation locking portion 62 are provided to generate the click feeling by utilizing the biasing force of the biasing member 22. As a result, when turning the operation unit 41, a click can be obtained at the open / close position of the shut valve 43. Further, since the biasing force of the biasing member 22 can be used both for the occurrence of friction at the ball joint 8 and the occurrence of the click feeling by the click feeling generation plate 61, the structure is simplified and simplified. be able to.

  While the embodiments of the present invention have been described in detail with reference to the drawings, the embodiments are merely illustrative of the present invention. Therefore, the present invention is not limited only to the configuration of the embodiment, and it is a matter of course that the present invention is included in the present invention even if there are changes in design and the like within the scope of the present invention. Further, for example, in the case where each embodiment includes a plurality of configurations, it goes without saying that possible combinations of these configurations are included even if there is no particular description. Further, in the case where a plurality of examples and modifications are disclosed as the present invention, it goes without saying that possible combinations of configurations across these are included even if there is no particular description. It is. Further, it goes without saying that the configuration depicted in the drawings is included even if there is no particular description. Furthermore, the term "etc" is used in the sense that it includes the equivalent. Moreover, when there is a term such as "approximately", "about", "degree", etc., it is used in the sense that it includes the range and accuracy that are accepted as common sense.

DESCRIPTION OF SYMBOLS 1 Ventilator main body 2 Spherical seat 3 Tube part for air blowout 4 Louver blade 5 Movable louver 6 Ball-like part 7 Ball receiving part 8 Ball joint 9 Friction generating member 22 Biasing member 31 Shaft holding part 32 Axial direction 33 Biasing shaft part 34 flange portion 41 operation portion 42 rotation transmitting portion 43 shut valve 44 valve opening and closing mechanism 61 plate for generating click feeling 62 locking portion for generation of click feeling

Claims (4)

A movable louver having a louver blade attached to the inside of an air blowing cylinder having a spherical outer peripheral surface is disposed with respect to a spherical seat formed on the tip side of a cylindrical ventilator main body, and the movable louver is , Installed in the ventilator body in all directions via a universal joint ,
Wherein the center position of the spherical seat, and the ventilator body and a ball-shaped portion provided on one of the movable louver, a ventilator structure with a ball joint having a ball receiving portion provided on the other,
Between the outer peripheral surface of the ball-like portion and the inner peripheral surface of the ball receiving portion, a friction generating member for generating friction is interposed so as to wrap at least the top of the ball-like portion,
Furthermore, and said ball receiving portion and said ball-shaped portion, in a state in which the interposed friction generating member therebetween, by providing a biasing member capable of generating a biasing force toward the top of the ball-shaped portion,該付 A ventilator structure characterized in that a direction of biasing by a biasing member is matched with an installation position of the friction generating member . In the ventilator structure according to claim 1,
The ball-shaped portion is formed at a tip end portion of a biasing shaft portion held movably in an axial direction of the ventilator main body with respect to a shaft holding portion provided at an axial center position of the ventilator main body.
The biasing member is interposed between the shaft holding portion and the flange portion formed on the biasing shaft portion such that the biasing shaft portion can be biased toward the distal end side. Characteristic ventilator structure. In the ventilator structure according to claim 2,
An operation unit is rotatably provided to the movable louver,
Between the ball-shaped portion and the ball receiving portion, there is provided a rotation transmission portion for transmitting a rotation operation to the operation portion to the biasing shaft portion.
An openable / closable shut valve is attached to the rear end of the ventilator body,
A valve opening / closing mechanism is provided between the shutoff valve and the rear end of the biasing shaft, and a valve opening / closing mechanism is provided for opening / closing the shut valve by rotation of the biasing shaft. In the ventilator structure according to claim 3,
The biasing shaft portion is provided with a click feeling generating plate that rotates integrally with the biasing shaft portion while being pressed against the shaft holding portion by the biasing force of the biasing member.
A click feeling generating locking portion capable of generating a click feeling by being locked at the open / close position of the shut valve is provided between the click feeling generating plate and the shaft holding portion. Ventilator structure.