JPH089560Y2 - Shutter valve opening / closing device for vehicle air conditioners - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to a device for opening and closing a shutter valve of a vehicle air conditioner.

(Prior Art) Conventionally, as a shutter valve opening / closing device for a vehicle air conditioner, as shown in Japanese Utility Model Laid-Open No. 63-10349, a moderation part 12 is provided on a part of the outer peripheral surface and is fitted in a hole in the center part. A knob body 11 rotatably provided around a shaft 13 and a plate spring 15 fixed so as not to rotate on the shaft 13 by extending and bending,
There is known a device in which a moderation portion 17 is provided on the inner surface to engage with the moderation portion 12.

(Problems to be solved by the invention) In the above-mentioned conventional technique, the shaft 13, the knob body 11, and the leaf spring 15 are assembled and screwed together, and the number of parts and the number of assembly steps are large. There is a problem that looseness of the screw easily causes looseness.

The present invention has been made in view of the above problems, and an object thereof is to provide an opening / closing operation device which can be easily assembled without using any screws and has a good feeling of moderation.

(Means for Solving the Problem) The present invention is intended to solve the above-mentioned problems, and an operation dial that operates an opening / closing arm of a shutter valve of an air conditioning case body via a connecting rod is provided on a side wall of the air conditioning case body. In the vehicle air conditioner mounted on the vehicle, a storage case for the operation dial, which has flexible side walls and has front and rear openings, is formed integrally with the air conditioning case body, and the operation dial boss shafts are provided on both side walls of the storage case. A shaft support portion was provided, and the operation dial was elastically expanded on the side wall of the storage case and inserted, and the boss shaft was fitted and supported on the shaft support portion, and was elastically pushed into and fixed to the side surface of the operation dial. It is characterized in that a click projection is erected on a metal press plate, and an uneven portion with which the click projection is engaged is formed on the rear edge of the storage case.

(Function) When the operation dial 25 is rotated, the tip of the click projection 32 is rotated.
32a elastically engages with and disengages from the unevenness 35 on the lower surface of the side wall 26a, and then articulates. Then, the stopper pins 33 on both sides are locked to the locking portion 34 to open / close the shutter valve 22. The center is neutral.

(Embodiment) An operation dial for actuating the opening / closing arm 23 of the shutter valve 22 of the air conditioning case body 21 with the front and back opened via the connecting rod 24.
In a device in which 25 is attached to the side surface of the air conditioning case body 21, a storage case for the operation dial 25 having a flexible side wall 26a parallel to the side wall 21a of the air conditioning case body 21 and having a front and rear opening. 26 is integrally provided, and shaft support portions 28a and 28b of operation dial boss shafts 27a and 27b are provided on both side walls of the storage case 26. Reference numeral 29 is a substantially rectangular metal press plate, and elastic locking pieces 29a that are cut and raised obliquely upward are provided on three sides of the metal pressing plate, and a detent rib 30 that prevents rotation of these three sides is integrated with the operation dial 25. It is erected. Further, the elastic locking piece 29a elastically intervenes in the elongated hole slit 31 formed in the lower central portion of the rotation preventing rib 30, and plays a role of preventing play. Also, metal press plate
The central portion of 29 is cut out in a circular shape, has radial slits, and is press-formed into a truncated cone shape. Therefore, when this is pressed into the boss 27 of the operation dial 25, the frustoconical upper edge portion is pressed against the boss 27 and is prevented from coming off. Reference numeral 32 denotes a click protruding piece that extends laterally from the remaining one side and rises at a right angle, and has a tip 32a curved in an arc shape. Also, from both sides of the click projection, use the operation dial 25 to
33,33 are erected. A concave-convex portion 35 that engages with the click projection 32a is formed at the rear edge of the side wall 26a, and further stopper pins 33, 33 are provided at the maximum open / close position of the shutter valve 22.
Locking portions 34, 34 with which the abutting contact is provided.

At the time of assembly, the metal press plate 29 is press-fitted into the boss 27, and the operation dial 25 is elastically opened at the side wall 26a of the storage case 26 and inserted from the lower opening to insert the boss shafts 27a and 27b into the storage case 26.
Is fitted to the shaft supporting portions 28a and 28b of the connecting rod 24 and the opening / closing arm 23.
To connect.

(Effect) According to the present invention, a vehicle air conditioner in which an operation dial for actuating the opening / closing arm of the shutter valve of the air conditioning case body via the connecting rod is mounted on the side wall of the air conditioning case body has flexibility. A storage case for the operation dial, which has side walls and is open at the front and rear, is formed integrally with the air conditioning case body, and the operation dial boss shaft support is provided on both side walls of this storage case. The boss shaft is fitted and supported on the shaft support part by elastically pushing it into the side surface of the operation dial, and the click projection is erected on the metal press plate that is fixed by fitting. Since the concavo-convex portion with which the click projection is engaged is formed at the rear edge, the following effects are obtained.

1. A snap-fit operation dial with a metal press plate sub-attached is inserted from the rear while expanding the side wall, and it is only necessary to pivotally support, so assembly is easy and the number of parts is small.

In addition, the complete fitting can be confirmed with a clicking sound during the assembly work.

2. It is possible to fully check the parts when sub-assembling.

3. Since no screws are used, loosening of screws due to rotation does not occur.

4. Since the click action part is made of resin and metal, wear is unlikely to occur.

5. Covered by the side wall integrated with the body, protected during transportation.

[Brief description of drawings]

1 is an external perspective view of an embodiment of the present invention, FIG. 2 is a partial sectional view taken along the line AA of FIG. 1, FIG. 3 is an exploded perspective view of the dial operation portion of FIG. 1, and FIG. 3 is a perspective view of the metal press plate of FIG.
FIG. 5 is an explanatory diagram of the click operation. 21 …… air conditioner case, 22 …… shutter valve, 23 …… opening / closing arm 24 …… connecting rod, 25 …… operating dial, 21a, 26a …… side wall 26 …… storage case, 27 …… boss, 27a, 27b …… Boss shafts 28a, 28b …… Shaft support, 29 …… Metal press plate, 29a …… Elastic locking pieces 30 …… Rotation stop ribs, 31 …… Slits, 32 …… Click projections 35 …… Uneven parts

Claims (1)

[Scope of utility model registration request] 1. A vehicle air conditioner in which an operation dial for operating an opening / closing arm of a shutter valve of an air conditioning case body is attached to a side wall of the air conditioning case body, and has a flexible side wall. A storage case for the operation dial, which is open at the front and back, is formed integrally with the air-conditioning case body, and the operation dial boss shaft shaft support is provided on both side walls of this storage case, and the operation dial elastically expands the side wall of the storage case. Then, insert the boss shaft into the shaft support part and fit it to the shaft support part.Then press the protruding piece upright on the metal press plate that is elastically pushed in and fixed to the side of the operation dial. A shutter valve opening / closing device for an air conditioner for a vehicle, characterized in that a concavo-convex portion with which the click projection is engaged is formed.