JP3362124B2 - register - Google Patents

Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a register which is mainly assembled to an instrument panel of a vehicle and is used as an air-conditioning air outlet. Regarding the mechanism. 2. Description of the Related Art A register shown in FIG. 7 is known which includes a rotating body for adjusting the wind direction by manual operation and a damper plate for opening and closing an air passage. In the figure, a barrel assembly (rotating body) 52 and a damper plate 53 are incorporated in a plastic bezel (outer frame) 51 so as to be rotatable around a horizontal axis 52a and a horizontal axis 53a, respectively. The barrel assembly 52 has a horizontal fin 55 integrally formed with the barrel main body 54 and a vertical fin 56 that can rotate around a vertical axis. By operating an operation knob 57, the vertical direction of the entire barrel assembly 52 is changed. The left and right directions of the vertical fins 56 can be freely changed within the respective adjustment ranges. Further, a sector gear 58 is formed on the outer peripheral portion of the barrel main body 54, and a small gear 59 that can mesh with the sector gear 58 is fixed to the horizontal shaft 53 a of the damper plate 53. In the state shown in FIG. 7 in which the damper plate 53 is in the fully opened position, the sector gear 58 and the small gear 59 are separated from each other, and the posture adjustment of the barrel assembly 52 does not narrow the air passage, that is, regardless of the damper plate 53. You can do it. Then, the barrel assembly 52 is moved downward beyond the wind direction adjustment range by, for example, about 60 °.
When the barrel gear 54 is rotated to the extent, the sector gear 58 and the small gear 59 mesh with each other, and thereafter the barrel body 54 slightly rotates (about 30
In (°), the posture of the damper plate 53 is changed from the fully open position to the fully closed position (see FIG. 8). [0004] However, in the above-mentioned sector gear (gear) type air passage opening / closing mechanism,
When the sector gear 58 and the small gear 59 are not fully engaged with each other, the damper plate 53 may be lowered due to vibration or the like and may block the air passage. In addition, the position of the engagement is likely to change due to vibration or rattling during operation, and the fully open and fully closed positions of the damper plate 53 become uncertain. In an extreme case, the sector gear 58 and the small gear 59 do not engage with each other or are disengaged from each other, so that they do not operate. Therefore, the operation of the stopper mechanism for holding the damper plate 53 at the fully open position and the operation of the small gear 59 with small teeth
In order to ensure the engagement with the sector gear 58,
It is necessary to increase the rigidity of the stopper mechanism and the entire bezel (outer frame) 51, and furthermore, the accuracy of positioning is required, which hinders cost reduction. SUMMARY OF THE INVENTION The present invention has been made to solve the above problem, and an object of the present invention is to provide a register having an air passage opening / closing mechanism capable of performing a reliable switching operation with a simple mechanism. A means for solving this problem is to make the register have the same structure as described in claim 1. Note that the damper plate in the structure includes an operating member such as an arm provided integrally with the damper plate. In the register having the above configuration, when the rotating body and the damper plate are engaged with each other via the cam groove of the cam mechanism, the rotating body is manually operated to rotate the damper plate, thereby forming the air passage. Open and close. Then, when the damper plate reaches the substantially fully opened position, the cam surface comes into sliding contact with the damper plate, and the rotation of the damper plate in the closing direction is prevented. In other words, while the cam surface is in sliding contact, the damper plate is reliably kept in a substantially open state, so that there is no possibility that the damper plate is closed due to vibration or the like and the air volume is reduced, and the wind direction adjustment by the rotating body is effective. become. Next, an embodiment of the present invention will be described. FIG. 1 is an exploded perspective view of the register, and FIG. 2 is a longitudinal sectional view of the register. As shown in both figures, a register 1 assembled to an instrument panel of a vehicle and used as an air-conditioning outlet is provided on a bezel 2 which is an outer frame forming an air passage, by a rotating body for adjusting the wind direction by manual operation. This is a schematic configuration in which a barrel assembly 3 and a damper plate assembly (hereinafter, simply referred to as a damper plate) 6 that opens and closes an air passage are rotatably mounted. The above-mentioned bezel 2 is made of plastic, and has a flange 2b integrally formed with a front end edge of a bezel body 2a formed in a substantially rectangular tube shape which is open front and rear.
A support shaft 2d for supporting the barrel assembly 3 is provided so as to protrude inward at a position closer to the front of the center of c and 2c, and rotatably supports the damper plate 6 at a position closer to the rear. Mounting hole 2e. The front part of the bezel body 2a bulges up and down to form an arcuate curved surface, and the barrel assembly 3 mounted on the front part thereof
Are supported from both sides by a support shaft 2d, and can rotate along an arcuate curved surface. The barrel body 3a of the barrel assembly 3
Are formed in a substantially cylindrical shape that is open front and rear, and horizontal fins 3b to 3b extending in the left-right direction are integrally formed on the front side. A plurality of mounting holes 3e are formed in the upper plate portion 3c and the lower plate portion 3d of the barrel main body 3a, and a plurality (five in this example) of vertical fins 4a to 4 are arranged in a horizontal direction.
e is rotatably supported around the vertical axis by inserting the support pins 4f to 4f into the mounting holes 3e. Connecting pins 4h to 4h are provided on the vertical fins 4a to 4e at positions rearward of the support pins 4f.
The vertical fins 4a to 4e are connected so as to move in synchronism by fitting the holes 5a. An operation knob 4j is formed on the vertical fin 4c so as to pass through the horizontal fin 3b and protrude forward from the barrel body 3a. When the operation knob 4j is operated to be shifted left and right, the vertical fins 4a to 4e are oriented in the same direction. Change your posture. When the operation knob 4j is pushed up and down, the entire barrel assembly 3 is turned on the spindle 2.
It rotates around d. As will be described in detail later, a first cam surface 7a, a second cam surface 7b, and a cam groove 7c constituting a cam mechanism for driving the damper plate 6 are provided on one side plate outer peripheral portion 3f of the barrel main body 3a. Is provided. The first cam surface 7a among them corresponds to the cam surface in the present invention. In FIG. 1, reference numeral 3h denotes a hole into which the support shaft 2d is fitted, and reference numeral 3i denotes a guide groove for guiding the support shaft 2d during assembly. The plate body 6 of the damper plate 6
f is formed in a substantially rectangular shape corresponding to the cross-sectional shape of the air passage of the bezel body 2a, and the lateral support shafts 6a, 6a provided at positions deviated to one side from the center line of the rectangle are provided with mounting holes for the bezel body 2a. 2e, and can be opened and closed by rotating about 90 ° about the axis of the support shaft 6a. 6b in FIG. 2 is a stopper. In addition,
Although not shown, it is preferable that a sealing member such as a soft rubber is attached to the plate body 6f to close the air passage without gap. A damper arm 6c of the illustrated shape is fixed to one side edge of the plate body 6f. in this case,
The support shaft 6a, the damper arm 6c, and the plate main body 6f that constitute the damper plate (assembly) 6 are integrally formed. The damper arm 6c is a follower of a cam mechanism provided in the barrel assembly 3, and an operating pin 6d protruding from the damper arm 6c is
A cam groove which is slidably in contact with a first cam surface 7a provided in an arc shape around the support shaft 2d on a side plate outer peripheral portion 3f of the barrel main body 3a, and which is formed continuously with the first cam surface 7a and extends toward the center of rotation. 7c is formed so that it can be engaged and disengaged (in and out). A second cam surface 7b is provided on the side opposite to the first cam surface 7a at the opening edge of the cam groove 7c so as to be slightly raised, and an operation pin 6d protruding from the cam groove 7c is provided on the second cam surface. 7b. An operating pin 7d protrudes from the barrel main body 3a. When the barrel assembly 3 rotates to a predetermined angular position, the operating pin 7d is engaged with an engaging portion (engaging claw) 6e of the damper arm 6c. , The damper plate 6 rotates, and at the same time, the operating pin 6d is drawn into the cam groove 7c, and the damper plate 6 rotates following the barrel main body 3a. Next, the operation of the air passage opening / closing mechanism of the register 1 configured as described above will be described. FIG. 3 is a sectional view of the register 1, in which the damper plate 6 is fully opened and the barrel assembly 3 is in the neutral position. In this state, the register 1 blows the wind straight from the air passage,
The user operates the operation knob 4j to rotate the barrel assembly 3 while changing the direction of the vertical fins 4a to 4e to adjust the wind direction. At this time, since the operating pin 6d at the tip of the damper arm 6c is in contact with or slidably in contact with the first cam surface 7a, the damper plate 6 cannot rotate in the direction of closing the air passage (counterclockwise in the drawing), and the stopper 6b It is maintained in the fully open state in combination with the contact with the bezel body 2a. Therefore, there is no possibility that the air passage is closed due to vibration or rattling. As the adjustment range when rotating the barrel assembly 3 (the vertical wind direction adjustment range when the barrel assembly 3 is fully opened), the upward posture is the operation pin 6d.
Is separated from the first cam surface 7a and until the operating pin 7d comes into contact with the engaging portion 6e (see FIG. 4), and the downward posture is set to the stepped portion 2f (see FIG. 3) of the bezel body 2a. This is until the stepped portion near the two cam surfaces 7b abuts. In this example, the upper and lower sides are about 30 °. When the amount of air blown from the register 1 is reduced or cut off, the barrel assembly 3 is further rotated upward from the state shown in FIG. Then, the operating pin 7d pushes down the engaging portion 6e to transmit a downward rotation to the damper arm 6c. Since the operating pin 6d is located at a position facing the cam groove 7c adjacent to the first cam surface 7a, the operating pin 6d enters the cam groove 7c with the rotation of the damper arm 6c. When the barrel assembly 3 is further rotated, torque is transmitted mainly from the cam groove 7c to the operating pin 6d of the damper arm 6c, and the damper plate 6 rotates in the counterclockwise direction in the drawing following the barrel assembly 3. . FIG. 5 shows a state in which the operating pin 6d has entered the depth of the cam groove 7c. FIG. 6 shows the state where the barrel assembly 3 is rotated by about 70 ° from the state shown in FIG. 4, and shows a state in which the damper plate 6 almost completely closes the air passage. In this state, the operating pin 6d is disengaged from the cam groove 7c, but since the operating pin 6d is in contact with the second cam surface 7b, the damper plate 6 does not return in the opening direction. In this state, the lower plate 3d of the barrel body 3a is
The opening a is closed without creating a large gap.
Moreover, since the outer surface of the lower plate portion 3d appears on the design surface, the appearance can be easily improved. In order to open the damper plate 6 from the fully closed state in FIG. 6 to allow air to be blown, the above procedure is reversed. That is, the barrel assembly 3 is rotated downward (counterclockwise rotation in FIG. 6), and the distal end of the damper arm 6c is pushed up by the operating pin 7d.
The torque in the clockwise direction is transmitted to the damper plate 6.
Then, the operating pin 6d enters the cam groove 7c, and subsequently, the damper plate 6 rotates according to the rotation angle of the barrel assembly 3 to open the air passage. As described above, in the air passage opening / closing mechanism of the register 1 according to the present embodiment, the barrel assembly 3 and the damper plate 6 always cooperate with each other via the cam mechanism. Up to cam groove 7c
The operating pin 6d engaged with the first cam surface comes into sliding contact with the first cam surface 7a, and the damper plate 6 is reliably maintained in the fully opened state. Therefore, the wind direction can be adjusted by rotating the barrel assembly 3, and at this time, the opening degree of the damper plate 6 is prevented from changing due to vibration or the like. Further, the on / off switching operation of the blowing can be performed continuously and reliably. As described above, in the register of the present invention, the operation of adjusting the wind direction and switching the air flow can be performed continuously and reliably, so that the operational feeling is good. In addition, the ventilation path opening and closing mechanism,
Since it does not engage with gears such as sector gears as in the prior art, accurate positioning is not required, and there is no inconvenience such as poor meshing of gears, so that it is easy to assemble with a relatively simple structure.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a register according to an embodiment. FIG. 2 is a longitudinal sectional view of the register according to the embodiment. FIG. 3 is a cross-sectional view illustrating an air passage opening / closing mechanism, showing a state in which a damper plate is fully opened and a barrel assembly is in a neutral position. FIG. 4 is a cross-sectional view illustrating an air passage opening / closing mechanism, and shows a state where a barrel assembly is tilted upward. FIG. 5 is a cross-sectional view illustrating an air passage opening / closing mechanism, and shows a state where a barrel assembly is inclined upward. FIG. 6 is a cross-sectional view illustrating an air passage opening / closing mechanism, showing a state in which a damper plate and a barrel assembly are closed. FIG. 7 is a partially cutaway perspective view of a register according to a conventional example. FIG. 8 is a longitudinal sectional view of a register according to a conventional example. [Description of Signs] 1 register 2 bezel (outer frame) 3 barrel assembly (rotary body) 4a to 4e vertical fin 4j operation knob 6 damper plate assembly (damper plate) 6c damper arm 6d operating pin 6e engaging part 6f plate body 7a first cam surface 7b second cam surface 7c cam groove 7d operating pin

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B60H 1/34 F24F 13/15

Claims (1)

(57) [Claim 1] An outer frame forming an air passage, a damper plate rotatably provided in the outer frame and opening and closing the air passage, A register having a rotating body rotatably provided by a manual operation and adjusting a wind direction blown from the outer frame body, comprising: a cam mechanism for interlocking the rotating body with the damper plate; The mechanism includes a cam groove for engaging and disengaging the rotator with the damper plate such that the damper plate rotates by a predetermined angle following the rotator, and slides into contact with the damper plate at a substantially full open position. A register having a structure in which a damper plate and a cam surface for preventing rotation of the damper plate in the closing direction are provided continuously.