JPH0687012U - Air outlet damper opening / closing device operating load application mechanism - Google Patents

Abstract

(57) [Abstract] [Purpose] An air outlet damper that has an inexpensive and simple structure and that suppresses the deformation of the pressing arm at high temperature to a small degree and maintains a moderate degree of moderation and reliable operability of the operation dial. Provided is an operating load applying mechanism for a switchgear. [Structure] A plurality of recesses 1 are formed on an outer peripheral portion of an operation dial 10.
4 is provided, and a pressing arm 87 having a pressure contact tip portion 89 that elastically presses against the sliding portion is provided from above the center of rotation of the operation dial to extend the operation dial. In the mechanism for applying an operation load to the operation dial, a protrusion 15 is provided on the upper side of the sliding portion of the operation dial, and the pressure contact tip of the pressing arm engages with the protrusion when the operation dial rotates. The sliding portion is configured to slide while being fitted.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a damper opening / closing device for an air outlet, and more particularly to a mechanism for applying an operating load thereof.

[0002]

[Prior art]

 Ventilation openings for ventilation and air conditioning in the passenger compartment are provided in or near the instrument panel in front of the front seats of the vehicle. This ventilation port is usually constructed by fitting an air outlet, which is made of a plastic molded tube or box. This air outlet is provided with a damper that switches the ventilation at the ventilation port or controls the ventilation amount.By operating a lever pivotally attached to the outer wall of the air outlet to rotate the damper, the ventilation opening of the air outlet is increased. Is controlled. An example is shown in FIGS. 6 and 7.

As shown in the figure, the damper opening / closing mechanism of the air outlet comprises an air outlet main body 50, a rotating arm 60, and an operation dial 70. The air outlet main body 50 is made of a plastic box-shaped product, and a vent 52 is opened and closed inside the air outlet main body 50, and a damper 52 that regulates the amount of ventilation is rotatably mounted on the shaft. Reference numeral 80 is an adjusting portion that is attached to the air outlet 53 of the air outlet body 50 and changes the direction of the air flow.

The rotation arm 60 is for rotating the operation dial 70 to open and close the damper 52, and is provided by connecting the damper 52 and the operation dial 70. Reference numeral 61 is a long hole, and reference numeral 62 is a connecting portion with the damper, which is fixed to the damper in the air outlet body 51 via a mounting hole 56 provided in the outer side wall 55.

The operation dial 70 is for adjusting the opening of the damper 52, and includes a dial body 71 and a connecting arm 72. On the outer peripheral portion of the dial body 71, a scale-like operation portion 74 is provided on the side that appears on the outside (visible portion) of the instrument panel, and a sliding portion 75 is provided on the opposite side. As shown in FIGS. 8 and 9, the sliding portion 75 is for switching and fixing the opening degree of the damper 52 in the air outlet body 51 with a moderation feeling, and includes a plurality of concave portions 76. I'm out. The recessed portion 76 has a tip of a pressing member 85, which will be described below, inserted therein, thereby giving an operator an appropriate switching feeling of the opening degree of the damper and fixing the opening degree stepwise. An appropriate number of the recessed portions 76 is provided according to the number of dampers to be switched. An engaging pin 73 is provided at substantially the tip of the connecting arm 72, and is slidably engaged with the elongated hole 61 of the rotating arm 60. Reference numeral 77 is a circular arc groove for stopping rotation, which engages with a pin member 57 provided upright on the outer side wall 55 to regulate the turning range of the operation dial 70.

In the operation dial 70, the bush portion 86 of the pressing member 85 is inserted into the center hole 78 provided at the center of the dial body 71, and the bush portion 86 is fixed to the boss portion 58 by the set screw 90. Thus, it is rotatably attached to the outer side wall 55.

Here, the boss portion 58 will be described. The boss portion 58 has a cylindrical boss body 54 that is inserted into the center hole 88 of the pressing member 85, and an annular rib 59 that projects from the outside of the boss body 54 and is in sliding contact with the back surface of the operation dial 70. Consists of. Reference numeral 81 is a circular spacer, and reference numeral 82 is a protrusion that engages with a notch (not shown) in the central hole 88 of the bush portion 86 to fix the position of the pressing member 85.

The pressing member 85 is made of resin or the like, and includes a bush portion 86 and a pressing arm 87. The bush portion 86 is fitted in the central hole 78 of the operation dial 70, and holds the operation dial 70 rotatably around it. The pressing arm 87 is extended from the center of the upper side of the bush portion 86, and as shown in FIGS. 8 and 9, the operation dial 70 rotates and the tip 89 of the arm enters the concave portion 76 of the sliding portion 75. The press-fitting temporarily fixes the rotation of the operation dial 70, thereby giving an appropriate moderation when switching the opening of the damper 52. Further, as understood from FIGS. 10 and 11, when the operation dial 70 is rotated and the pressing arm 87 rides on the sliding portion 75, the operation arm 70 elastically comes into pressure contact with the operation dial 70. Apply a simple operation load.

By the way, particularly in the summer, when the vehicle is left outdoors for a long time, the temperature inside the vehicle may rise to 80 ° C. or more. At that time, as shown in FIG. 11, when the pressing arm by the damper opening / closing mechanism is in a state of being in pressure contact with the sliding portion and riding up, the pressing arm remains in the riding shape due to the stress and the temperature inside the vehicle. It may be transformed into. With such a shape, it is not possible to apply an appropriate load when the pressing arm moves between the sliding portion and the recessed portion by the rotation of the operation dial, and not only the moderation of the dial is lost but also the damper. There is also a problem that the switching position of is not fixed securely.

Various methods and structures have been proposed to solve this problem. For example, there are a method of forming the pressing arm made of resin with metal, a method of forming the pressing arm with resin having high heat resistance, and a method of providing a rib on the pressing arm.

However, the first and second methods have a problem that the cost of the pressing arm increases. Further, in the third method, there is a problem that the elasticity of the pressing arm becomes too high due to the rib and the operability of the operation dial itself deteriorates.

[0012]

The present invention has been proposed in view of such problems, has an inexpensive and simple structure, and suppresses the deformation of the pressing arm at high temperature to be small, It is intended to provide an operation load imparting mechanism for a damper opening / closing device of an air outlet, which can maintain an appropriate degree of moderation and a reliable operability of an operation dial.

[0013]

[Means for Solving the Problems]

 That is, according to the present invention, by rotating the operation dial, the damper in the air outlet connected to the operation dial is rotated to adjust the opening thereof. A sliding portion including a plurality of recesses is provided in the portion, and a pressing arm having a pressure contact tip portion that elastically presses against the sliding portion is extended from above the rotation center of the operation dial. In the mechanism for applying an operation load to the operation dial, a protrusion is provided on the upper side of the sliding portion of the operation dial so that the pressure contact tip portion of the pressing arm protrudes when the operation dial rotates. The present invention relates to an operating load imparting mechanism in a damper opening / closing device for an air outlet, characterized in that the sliding portion is configured to slide while being engaged with the shape portion.

[0014]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a front view of an operation dial showing an example of a damper opening / closing mechanism for an air outlet of the present invention, FIG. 2 is a sectional view taken along line 2-2, and FIG. 3 is a rotating state of the operation dial shown in FIG. FIG. 4 is a front view of an operation dial showing another example of the present invention, and FIG. 5 is a sectional view taken along line 5-5 thereof.

The mechanism of the present invention is preferably used for the damper opening / closing mechanism of the general air outlet shown and described in FIGS. 6 and 7. Examples thereof are shown in FIGS. 1 and 2. In addition, in the reference numerals in the drawings, the same reference numerals as those in FIGS. 6 and 7 indicate the same members. As shown in the figure, in the operation dial 10 using the mechanism of the present invention, a protrusion 15 is provided on the upper side of the sliding portion 13 of the dial body 11. Reference numeral 12 is a connecting arm, 14 is a concave portion, 18 is an adjusting portion, and 19 is an engaging pin. The projecting portion 15 is provided so as to project outward from the outer periphery of the sliding portion 13 to a length such that the pressing arm 87 is not contacted and the rotation of the operation dial 10 is not hindered. .

When the sliding portion 13 passes under the pressing arm 87 by rotating the operation dial 10, the protrusion 15 engages with the pressure contact tip 89 of the pressing arm 87. That is, when the press-contact tip portion 89 of the pressing arm 87 is elastically press-contact deformed by the sliding portion 13, as shown in FIG. 3, the press-contact tip portion 89 abuts from the inner surface of the press-contact tip portion 89 to restrict the deformation. It is like this.

The protrusion 15 is made of a resin or metal piece formed in an appropriate shape, and is bonded according to the number and position of the sliding portions 13 through which the pressing arm 87 passes by the rotation of the operation dial 10. It is preferable to attach it with an agent or the like.

When the operation load at high temperature (80 ° C. × 4 hours) was measured using the operation dial having this structure, the pressing arm was hardly deformed and a sufficient operation load was applied during dial operation. At the same time, the moderation of switching the damper is maintained without fail.

4 and 5 show another example of the structure of the present invention. Reference numeral 20 is an operation dial, 21 is a dial body, and 22 is a connecting arm. In these figures, the same reference numerals as those in FIGS. 6 and 7 indicate the same members. The operation dial shown here is integrally provided on the upper side of the dial main body 21 with a projection 25 projecting outward in a flange shape from the ends of the sliding portion 23 and the recessed portion 24. .

[0020]

[Effect of device]

 As shown and described above, according to the operation load imparting mechanism of the damper opening / closing device of the air outlet of the present invention, the deformation of the holding arm for switching the opening / closing amount of the damper is suppressed to be small even when exposed to high temperature for a long time. be able to. Therefore, even in the interior of an automobile that tends to be hot, it is possible to maintain a proper sense of moderation and reliable operability of the operation dial.

[Brief description of drawings]

FIG. 1 is a front view of an operation dial showing an example of a damper opening / closing mechanism of an air outlet of the present invention.

FIG. 2 is a sectional view taken along the line 2-2.

FIG. 3 is a cross-sectional view showing a rotated state of the operation dial shown in FIG.

FIG. 4 is a front view of an operation dial showing another example of the present invention.

FIG. 5 is a sectional view taken along line 5-5.

FIG. 6 is a partially cutaway perspective view showing an example of a damper opening / closing device for a general air outlet.

FIG. 7 is an exploded perspective view thereof.

FIG. 8 is a front view of an operation dial.

FIG. 9 is a sectional view taken along the line 9-9.

10 is a plan view showing a rotated state of the operation dial shown in FIG.

FIG. 11 is a sectional view taken along the line 11-11.

[Explanation of symbols]

 10 Operation Dial 11 Dial Main Body 12 Connection Arm 13 Sliding Part 14 Recessed Part 15 Protruding Part 87 Pressing Arm 89 Pressing Tip Part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Kazuyasu Kitamura 8th Toei, Fujii-cho, Anjo City, Aichi Prefecture 1 Inoac Corporation Sakurai Plant

Claims (1)

[Scope of utility model registration request] 1. An outer peripheral portion of the operation dial, wherein a damper in an air outlet connected to the operation dial is rotated by rotating the operation dial to adjust an opening thereof. Is provided with a sliding portion including a plurality of recesses, and a pressing arm having a pressure contact tip portion elastically pressure-contacting the sliding portion is extended from the upper side of the center of rotation of the operation dial to perform the operation. In a mechanism adapted to apply an operation load to a dial, a protruding portion is provided on an upper side of a sliding portion of the operation dial, and a pressure contact tip end portion of the pressing arm engages with the protruding portion when the operation dial rotates. An operating load imparting mechanism in a damper opening / closing device for an air outlet, characterized in that the sliding portion is configured to slide together.