JPH0583651U - Ventilator wind direction adjustment device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a wind direction adjusting device for a ventilator, which can change the wind direction without restricting the air volume, and which does not easily cause the belt to bend. [Structure] A belt 20 pushed by the dampers 16 by rotating a pair of dampers 16 interlocking with each other in the front-rear and reverse directions.
Moves into and out of the air passage 12 of the ventilator case 11. This belt and the part of one belt 20 where the damper 16 contacts
The surface of the belt 20 between the support shaft 22a and the support shaft 22b and the portion of the other belt 20 in contact with the damper 16 and the support shaft of the belt 20.
The surface between 22a or the support shaft 22b faces. Both belts
The direction of the air passage 12 can be changed between the 20 faces, and the wind direction can be adjusted. Since the support shaft 22b of the belt 20 is movably supported by the long hole 23 and is urged by the wire spring 26, a constant tension is constantly applied to the belt 20 without giving elasticity to the belt 20. The belt 20 is less likely to bend.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wind direction adjusting device for a ventilator used for air conditioning of a vehicle, for example.

[0002]

[Prior Art]

 Conventionally, as a wind direction adjusting device of this type of ventilator, for example, a configuration described in Japanese Utility Model Laid-Open No. 1-120043 is known.

As shown in FIG. 4, the structure disclosed in Japanese Utility Model Laid-Open No. 1-120043 is arranged such that one end of the air passage 2 of the ventilator case 1 formed in a substantially rectangular cross section has one end thereof rotated near the inner wall 1a. A damper 3 movably supported is attached, and a rotatable front support shaft 4a and a rear support shaft 3b are attached at positions close to the inner walls 1a at both ends of the damper 3, respectively. An elastic belt 5 is stretched between the support shafts 4b.

When the air passage 2 is blown with the air passage 2 fully opened, the damper 3 is positioned in parallel with the inner wall 1a as shown by the alternate long and short dash line, and the elastic belt 5 is placed along the inner wall 1a. Set to the maximum open state.

Further, when closing the air passage 2, as shown by the chain double-dashed line, the tips of the dampers 3, 3 are brought into close contact with each other, and the cross section of the ventilator case 1 is closed by the elastic belt 5.

Further, when changing the direction in which air is blown from the air passage 2, as shown by the solid line, the opposing dampers 3, 3 are positioned on different sides in the front-rear direction, and the opposing elastic belts 5, 5 are opposed. Are parallel to the inner wall 1a with a predetermined angle.

[0007]

However, in the structure described in Japanese Utility Model Laid-Open No. 1-120043, the damper 3 for closing the ventilator is parallel to the inner wall 1a and does not press the elastic belt 5. In addition, when the length of the elastic belt 5 becomes the shortest, and the damper 3 rotates and the damper 3 presses the elastic belt 5 instead of being parallel to the inner wall 1a, the elastic belt 5 Stretch occurs. Therefore, it is necessary to use a highly elastic material such as rubber for the elastic belt 5, and there is a problem that the elastic belt 5 is stretched due to aging and the elastic belt 5 bends. ing.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a wind direction adjusting device for a ventilator that can change the wind direction without limiting the air volume and that does not easily cause the belt to bend. To aim.

[0009]

[Means for Solving the Problems]

 The present invention provides a pair of dampers, each of which has an inner portion facing away from the inside of an air passage having a substantially rectangular cross section of a ventilator case, and an outer portion rotatably supported near an inner wall of the ventilator case. The front and rear ends are supported at positions separated from each other in the front-rear direction of the damper and close to the inner walls of the ventilator case, and a pair of belts whose middle part located between the both ends contacts the tip of the damper. In the wind direction adjusting device provided, a movable supporting means for movably supporting at least one end of the belt along an extension line between the front and rear ends, and an end supported by the movable supporting means. An urging means for urging the other end portion in a direction away from the other end portion is provided.

[0010]

[Action]

 According to the present invention, by rotating a pair of dampers interlockingly with each other in the front-rear direction, the belt pushed by the inner side of the damper advances and retreats into the air passage of the ventilator case, and the damper of one of the belts moves. The belt surface between the contacting portion and the front end or the rear end and the belt surface between the contacting portion of the other belt damper and the rear end or the front end face each other. The direction of the air passage can be changed between the belt surfaces to adjust the wind direction. Further, at least one end of the belt is movably supported by a movable supporting means along an extension line between the front and rear ends, and the end supported by the movable supporting means is urged by the urging means. Since the belt is urged away from the belt, it is not necessary to give the belt elasticity, and the belt is less likely to bend.

[0011]

【Example】

 Hereinafter, a configuration of an embodiment of a wind direction adjusting device for a ventilator according to the present invention will be described with reference to the drawings.

In FIGS. 1 and 2, reference numeral 11 denotes a ventilator case, which has an air passage 12 having a substantially rectangular cross section that opens in the front-rear direction. A flange 14 is provided on the peripheral portion, and a plurality of louvers 15 for adjusting the wind direction in the upward and downward directions are rotatably installed inside the air outlet 13 in a linked manner.

Further, a pair of left and right dampers 16 are arranged in the air passage 12 behind the air outlet 13 of the ventilator case 11, and each of the dampers 16 has a width substantially equal to the width of the air passage 12 divided into two. It is composed of a rectangular plate having the same width, and is rotatably supported by the ventilator case 11 by a shaft portion 17 provided on the outer upper and lower portions. The shaft portion 17 is rotatably supported in close proximity to the left and right inner walls 11a formed on the ventilator case 11, and the wall portion 11b formed on the upper side of the ventilator case 11 is on the upper side of the shaft portion 17. A quadrangular fitting projection 18 that rotatably fits in is provided so as to project, and the lower side of the shaft 17 is inserted through the lower wall 11c of the ventilator case 11.

Further, a pair of left and right belts 20 is provided on the left and right sides of the air passage 12 of the ventilator case 11 so as to cover the respective dampers 16. The belt 20 has a vertical width in the vertical dimension of the damper 16, that is, the ventilator case 11 The upper and lower walls 11b and 11c are substantially the same in size, and the front and rear ends of the belt 20 are pivotally supported at the front and rear positions of the dampers 16 and close to the inner walls 11a of the ventilator case 11. It is attached to the support shafts 22a and 22b. Further, the support shaft 22b is fitted into a long hole 23 formed as a movable supporting means along the longitudinal direction of the air passage 12 formed in the walls 11b and 11c, and is movable in the longitudinal direction of the air passage 12. ing. Further, a locking projection 24 is formed so as to project on the outer surface of the wall portion 11b of the ventilator case 11, and the locking projection 24 has a locking portion 25 formed of a winding portion at the center. A wire spring 26 as a biasing means is fixed. The wire spring 26 is fixed to the locking projection 24, and both ends of the wire spring 26 urge the support shaft 22b toward the rear side of the ventilator case 11 opposite to the support shaft 22a. The front and rear support shafts 22a and 22b are set so that they can be stretched without slack.

On the other hand, both dampers 16 are interlocked by an interlocking mechanism 31, and this interlocking mechanism 31 is fitted to a fitting projection 18 of each damper 16 protruding from the upper surface of the ventilator case 11. The gear 33 is fitted through the bush 32 and is fixed by tightening the screw 34. Further, a gear 35 that meshes with both gears 33 is rotatably fixed to a support shaft portion 36 protruding from the upper surface of the ventilator case 11 via a bush 37 with a screw 38. Further, the operating body 41 that meshes with the gear 35 is rotatably fixed to the support shaft portion 42 protruding from the upper surface of the ventilator case 11 via the bush 43 by the screw 44. Then, by rotating the operating body 41, the gears 33 are interlocked in the same rotational direction via the gears 35, and the dampers 16 are rotated in the air passage 12 in the front-rear and reverse directions. To move.

The operation body 41 has a tooth portion 45 that meshes with the gear 35 and a dial portion 46 that protrudes to the front through a window hole 14a provided in the flange 14 of the ventilator case 11 at the peripheral edge portion. Two large and small groove holes 47 and 48 are provided in a circular arc shape, and an uneven edge portion 49 is continuously formed on the inner edge portion of the outer groove hole 48. The concave portion of the concave-convex edge portion 49 is engaged with the rotational position of the operating body 41, that is, the rotational position of the damper 16, and the convex portion of the concave-convex edge portion 49 is rotated by operating the operating body 41. By the portion overcoming the pin 50 and the adjacent recess engaging with the pin 50, the rotational position of the operating body 41, that is, the rotational position of the damper 16 can be changed. The groove hole 47 facilitates the deformation of the uneven edge portion 49 and facilitates the rotation of the operating body 41.

Then, in the state where the operation body 41 is rotated most in the counterclockwise direction, when one damper 16 is rotated forward as shown in the state A shown by the one-dot chain line in FIG. At the same time, the other damper 16 rotates rearward so that each damper 16 is parallel to the inner wall 11a of the ventilator case 11, and the belts 20 between the front and rear support shafts 22a and 22b are also the inner wall 11a. In the parallel state, the air passage 12 of the ventilator case 11 is completely opened, and the air sent into the air passage 12 is blown straight out from the outlet 13 of the ventilator case 11. At this time, since the belt 20 is not pressed by the damper 16, the distance between the support shaft 22a and the support shaft 22b becomes the longest, and the support shaft 22b is pressed rearward by the bias of the wire spring 26.

When the operating body 41 is slightly rotated from the A state, one damper 16 is slightly rotated from the front and the other damper 16 is rotated as in the B state shown by the solid line in FIG. The belt 20 is rotated in a slightly interlocking manner from the rear side, and the tip end of each of the dampers 16 presses the belt 20 inward of the air passage 12. In this state, air is blown along the gap between the opposing belts 20, 20. At this time, since the belt 20 is slightly pressed by the damper 16, the distance between the support shafts 22a and 22b is slightly shorter than that in the A state, and the belt 20 is pressed to the rear by the urging force. Axis 22b is located slightly forward.

Further, when the operating body 41 is in the center of the amount of rotation, both dampers 16 are positioned perpendicular to the inner walls 11a, 11a, respectively, as in the C state shown by the chain double-dashed line in FIG. Since the air passage 12 is closed, air is not blown. At this time, since the belt 20 is pressed by the damper 16, the distance between the support shaft 22a and the support shaft 22b becomes the shortest, and the support shaft 22b is positioned in front of the bias of the wire spring 26.

In the state before and after the state in which the operation body 41 is set to the center of the rotation amount, the space between the belts 20 and 20 narrowed by the dampers 16 and 16 is narrowed, so that the air to be blown is narrowed and blown. Can be sent far.

Furthermore, when the operating body 41 is rotated, air is blown in the direction opposite to the state B in FIG.

As described above, by rotating the operating body 41, the pair of dampers 16 respectively rotate in the front-rear reverse direction, and the air is generated between the parallel inclined surfaces formed on both belts 20. The direction of the passage 12 is changed to the left and right, and the wind direction in the left and right is adjusted. In addition, since the passage width between both belts 20 is sufficiently secured, the decrease in the air volume in the state of adjusting the air flow direction in the left and right directions is slight. Further, by arranging the dampers 16 and 16 vertically with respect to the inner walls 11a and 11a, the air passage 12 is closed and the ventilation is stopped.

When the damper 16 rotates, the shape of the belt 20 is deformed while the outer portion of the damper 16 slides on the surface of the belt 20, and the wire spring 26 urges the distance between the support shafts 22a and 22b. However, since it is variable, the belt 20 is always stretched with a constant tension, so that the belt 20 does not bend. Further, since the belt 20 does not need to have elasticity, the wire spring 26 can provide a certain amount of tension without taking into consideration the elongation due to aging.

Further, in the above embodiment, the interlocking mechanism 31 has the gear interlocking structure having the operating body 41, but the damper 16 may be interlocked and rotated by a structure using an operating lever.

Further, a roller may be provided on the tip side of the damper 16, and in this case, the sliding resistance of the belt 20 can be reduced and the damper 16 can be easily opened and closed.

[0026]

[Effect of the device]

 According to the ventilator air-direction adjusting device of the present invention, by rotating the pair of dampers interlockingly with each other in the forward and backward directions, the belt pushed by the inner side of the damper advances and retreats into the air passage of the ventilator case. The surface of the belt between the part of the belt that contacts the damper and the front or rear end, and the part of the belt that contacts the damper of the other belt and the surface of the belt between the rear or front end. The air passages are opposed to each other and the direction of the air passage is changed between the surfaces of the two belts, and the wind direction can be adjusted. Further, at least one end of the belt is movably supported by a movable supporting means along an extension line between the front and rear ends, and the end supported by the movable supporting means is urged by the urging means. Since the belt is urged in the direction away from the belt, it is not necessary to give the belt elasticity and it is possible to prevent the belt from bending.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a ventilator of the present invention.

FIG. 2 is a perspective view showing a state after assembling the same as above.

FIG. 3 is a cross-sectional view showing the same operation.

FIG. 4 is a cross-sectional view showing a conventional ventilator.

[Explanation of symbols]

 11 Ventilator case 11a Inner wall 12 Air passage 16 Damper 20 Belt 23 Long hole as movable support 26 Wire spring as biasing means

Claims (1)

[Scope of utility model registration request] 1. A pair of dampers, each of which has an inner portion facing and separated from each other in an air passage having a substantially rectangular cross section of a ventilator case, and an outer portion rotatably supported in proximity to an inner wall of the ventilator case. A pair of belts, which are separated from each other in the front-rear direction of the damper and are close to the inner walls of the ventilator case, have both front and rear end portions supported, and an intermediate portion located between the both end portions contacts the tip of the damper. In the wind direction adjusting device of a ventilator, the movable support means for movably supporting at least one end of the belt along an extension line between the front and rear ends, and the other end supported by the movable support means And a biasing means for biasing the end of the fan in a direction away from the end of the ventilator.