JPH0420656Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to a wind direction adjustment device at an air outlet for air conditioning of automobiles, etc.

(Prior technology) As a conventional wind direction adjustment device of this type,
- As shown in Publication No. 137013, a plurality of front louvers that rotate in conjunction with each other are provided in parallel on the inside front part of the case body which is open at the front and back, and they also interlock with each other at the inside rear part of the case body. A plurality of rear louvers are provided in parallel in a direction orthogonal to the front louver, and an operation knob is slidably provided on one of the front louvers, and a rear louver is attached to the rear of the operation knob in front of the rear louver. Some devices have a pair of engaging pieces protruding from both sides of the edge, and the rear louver is rotated by sliding an operating knob along the front louver.

(Problem to be solved by the invention) In the conventional wind direction adjustment device described above, the operation knob that is fitted from the front to the front louver only holds the front louver from both sides. There was a problem in that the clamping force was insufficient, and sliding torque could not be obtained for the operation knob, and the operation knob easily fell off the front louver.

The present invention was devised in view of these points, and is a wind direction adjustment device in which the rear louver is operated by sliding the operation knob fitted into the front louver from the front along the front louver. The purpose of this is to generate sufficient sliding torque and to make it difficult for the operating knob to fall off.

[Structure of the idea]

(Means for Solving the Problems) The wind direction adjustment device of the present invention includes a plurality of front louvers 2, 2a provided in parallel at the inner front part of a case body 1 with front and rear openings, and an inner side of the case body 1. A plurality of rear louvers 3, 3a provided in parallel in a direction orthogonal to the front louvers 2, 2a are provided at the rear,
In a wind direction adjustment device in which at least the rear louvers 3, 3a are rotatably supported and interlocked with each other, a pair of clamping parts 12 clamping both sides of one of the front louvers 2, 2a, and this pair of clamping parts 12 on the front edge side of the front louver 2a,
The front louver 2a is provided with an operation knob 11 slidably fitted from the front, and a pair of U-shaped engagement pieces 15 are provided protruding from the rear of at least one of the pair of clamping parts 12 of the operation knob 11. , a curved portion 15a is formed in the middle part of the pair of U-shaped engagement pieces 15 to engage with both sides of the front edge of one of the rear louvers 3, 3a, and the pair of U-shaped engagement pieces 15 The distal end of the joint piece 15 is provided with an abutting part 15b that elastically abuts on the rear edge corner of the adjacent front louver 2.

(Function) In the wind direction adjusting device of the present invention, by sliding the operation knob 11 along the front louver 2a, the rear louvers 3, 3a can be rotated. The contact portion 15b of the U-shaped engagement piece 15 slides on the rear edge of the adjacent front louver 2 to generate sliding torque, and the engagement piece 15
The operating knob 11 is prevented from falling off due to the elastic contact between the contact portion 15b and the rear edge corner of the front louver 2.

(Embodiment) Hereinafter, the structure of an embodiment of the wind direction adjusting device of the present invention will be described with reference to FIGS. 1 to 5.

In the figure, 1 is a case body made of synthetic resin. This case body 1 has a rectangular hollow shape with openings at the front and back. The inside front part of this case body 1 has three front louvers 2,
2a are integrally formed parallel to the upper and lower walls of the case body 1 at a predetermined interval, and
At the inner rear part of the case body 1, three rear louvers 3, 3a made of synthetic resin are arranged at predetermined positions parallel to the left and right walls of the case body 1, facing in a direction perpendicular to the front louvers 2, 2a. It is rotatably supported in the left-right direction by shaft portions 4 provided at both upper and lower ends at intervals,
These three rear louvers 3, 3a are connected by an interlocking rod 6 via a shaft portion 5 protruding from the rear portion of the upper end thereof.
They are designed to rotate in conjunction with each other.

A pair of left and right support shafts 7 are protruded from the outside of the left and right walls of the case body 1, and the central front louver 2a of the three front louvers 2, 2a is located at the front. The front louver 2a has a tapered shape in which the thickness gradually increases from the edge to the rear edge, and a pair of left and right locking protrusions 8 are protruded from the rear edge of the tapered front louver 2a. , the central rear louver 3a of the three rear louvers 3, 3a.
An umbrella-shaped engaging portion 9 is formed at the front edge of the handle.

Reference numeral 11 denotes an operation knob made of synthetic resin, and this operation knob 11 holds a pair of upper and lower clamping portions 12 that clamp both upper and lower sides of the tapered front louver 2a.
A pair of left and right locking pawls 14 are formed at the rear of the upper clamping part 12 to engage with the rear edge of the front louver 2a. Both sides of the front edge of the rear louver 3a and the front louver 2a provided with the umbrella-shaped engaging portion 9
A pair of left and right U-shaped engagement pieces 15 are provided protruding from the rear edge of the front louver 3 adjacent to the lower side, and the rear surface of the connecting portion 13 to the front edge of the front louver 2a forms an arcuate inner surface 16. ing.

The pair of U-shaped engagement pieces 15 have a curved part 1 in the middle that engages both sides of the front edge of the rear louver 3a.
5a, and a contact portion 15b that elastically abuts on the rear edge corner of the front louver 2 adjacent to the tip.

Then, the operation knob 11 is assembled from the front to the tapered front louver 2a of the case body 1, and the curved portion 1 in the middle of the pair of left and right engagement pieces 15 is assembled from the front.
5a is engaged between the front louver 2a and the front louver 2 below it, and the pair of upper and lower clamping parts 12
by engaging the upper and lower sides of the front edge of the front louver 2a and pressing the operating knob 11 backward, the pair of U
The letter-shaped engagement piece 15 contracts and closes using the curved portion 15a as a fulcrum, and the pair of clamping portions 12 gradually expands using the connecting portion 13 as a fulcrum in accordance with the taper of the front louver 2a. When the retaining pawl 14 and the pair of engagement pieces 15 pass through the front louver 2a, the pair of upper and lower clamping parts 12 are restored, and thereby the clamping parts 1
2 clamps the front louver 2a from both upper and lower sides, and each of its locking claws 14 locks on the rear edge of the front louver 2a. The recurved portions 15a of the pair of engagement pieces 15 sandwich the umbrella-shaped engagement portion 9 of the rear louver 3a from both sides, and the pair of engagement pieces 15 abut against the front edge of the front louver 2a. When the abutment part 15b at the tip passes through the lower front louver 2 by pushing in, the pair of engagement pieces 15 are restored,
As a result, the abutment portion 1 of the pair of engagement pieces 15
5b elastically abuts on the lower corner of the rear edge of the lower front louver 2.

In the assembled state as described above, the curved surfaces 15a of the pair of left and right engaging pieces 15 of the operation knob 11 remain engaged with the umbrella-shaped engaging portions 9 of the rear louver 3a.
The operation knob 11 can be slid in the left-right direction along the front louver 2a, thereby allowing the rear louvers 3, 3a to be rotated in the left-right direction.
At this time, there is no play between the operating knob 11 and the front louver 2a, and the curved portions 15a of the pair of engagement pieces 15 of the operating knob 11 are fixed as shown in FIGS. 3 and 4. Umbrella-shaped engaging portion 9 is always present in any position
In addition, since the recurved portion 15a has an arcuate shape in plan view and smoothly slides into contact with the umbrella-shaped engaging portion 9, the operation becomes smooth.

In addition, the rear part of the connecting part 13 where deformation is large during assembly and where stress is concentrated is an arcuate inner surface 16, and similarly,
Since the inner surface of the recurved portion 15a of the U-shaped engagement piece 15, which undergoes large deformation during assembly and where stress is concentrated, is also arcuate, these parts may be plastically deformed or cracked due to stress concentration. Never.

Further, during assembly, the U-shaped engagement piece 15 of the operating knob 11 contracts and closes using the recurved portion 15a as a fulcrum, and the holding portion 12 of the operating knob 11 closes the front louver 2a.
Since the connecting portion 13 is expanded according to the taper, assembly is easy, and after assembly, the front louver 2a is held by the gripping portion 12 of the operation knob 11, and the operation knob 11 is not engaged with the front louver 2a. Since the contact portion 15b of the piece 15 elastically contacts the rear edge corner of the lower front louver 2, the necessary sliding torque of the operation knob 11 can be obtained.

The airflow direction adjustment device is installed at the air conditioning outlet of an automobile or the like, and adjusts the air blowing direction vertically and horizontally.In the case of this embodiment, the rear louver 3, 3a is rotatable in the left and right directions with respect to the case body 1, but since the front louvers 2 and 2a are integral with the case body 1, in order to adjust the air blowing direction up and down, the case body 1 must be It is provided so as to be freely rotatable in the vertical direction with respect to the air outlet via a support shaft 7, so that the entire case body 1 can be rotated up and down.

Note that when implementing the present invention, the present invention is not limited to the embodiments described above, and for example, as shown in FIG. The front louver 2, 2a may be elastically abutted on the upper corner of the rear edge of the front louver 2, and can be applied not only to a structure in which the front louvers 2 and 2a are fixed, but also to a structure in which the front louver is movable.

[Effect of idea]

According to the present invention, in a wind direction adjustment device in which the rear louver is rotated by sliding the operation knob along the front louver, when assembling the operation knob to the front louver, the operation knob is moved from the front to the front. It can be assembled to the louver, and after assembly, the contact part of the pair of engagement pieces of the operation knob elastically abuts the rear edge corner of the adjacent front louver, so that the operation knob has sufficient sliding movement. Torque can be obtained, and the operating knob can be made difficult to fall off.

[Brief explanation of the drawing]

The figures show an embodiment of the wind direction adjusting device of the present invention, in which Fig. 1 is a longitudinal cross-sectional view of a part thereof, Fig. 2 is a perspective view of a part thereof, Fig. 3 is a cross-sectional view of a part thereof, and Fig. 3 is a cross-sectional view of a part thereof. FIG. 4 is a cross-sectional view of a part in a different state, FIG. 5 is a perspective view of the whole, and FIG. 6 is a longitudinal cross-sectional view of a part of a modified example. 1...Case body, 2, 2a...Front louver, 3,
3a...Rear louver, 11...Operation knob, 12...
Clamping part, 13... Connection part, 15... Engagement piece, 15
a...Recurved portion, 15b... Contact portion.

Claims (1)

[Claims for Utility Model Registration] A plurality of front louvers provided in parallel on the inner front part of a case body with front and rear openings, and a plurality of front louvers provided in parallel on the inner rear part of the case body in a direction perpendicular to the front louvers. A wind direction adjustment device comprising a plurality of rear louvers provided in the front louver, and at least the rear louvers are rotatably supported and interlocked with each other, a pair of clamping portions clamping both sides of one of the front louvers; a connecting part that connects the pair of clamping parts on the front edge side of the front louver, and an operation knob that is slidably fitted to the front louver from the front, and at least one of the pair of clamping parts of the operation knob. A pair of U-shaped engagement pieces are provided protruding from the rear part, and a curved part that engages with both sides of the front edge of one of the rear louvers is formed at the middle part of the pair of U-shaped engagement pieces. The wind direction adjusting device is further characterized in that the pair of U-shaped engaging pieces includes a contact portion at the tip thereof that elastically abuts on a rear edge corner of an adjacent front louver.