JPH0770845B2 - Shutter device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a cassette car stereo, an electronic device such as a video recorder,
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shutter device for a panel which is a sound and image device and has a shutter at a pack insertion port.

[Conventional technology]

3 to 5 show a conventional panel structure of this type, in which 1 is a panel, 2 is a cassette port provided on one side of the panel for inserting a cassette pack 3, and 4 is a cassette port. A shutter pivotally mounted on the back side of the cassette opening by shafts 5a and 5b.
A spring 6 is provided on the same axis 5c as a and 5b, and the shutter shafts 5a and 5b are inserted into bearing holes 7a and 7b provided on both sides of the panel 1.

Next, the operation will be described. The shutter 4 mounted on the panel 1 is rotatably attached around the shutter shafts 5a and 5b on both sides, and has a restoring force by a spring 6. The shutter 4 opens when the cassette pack 3 is inserted from the cassette port 2 and closes when pulled out.

[Problems to be Solved by the Invention]

The bearings of the conventional shutter device are bearing holes 7a and 7b,
Since it was bent and inserted within the elastic limit of the shutter, only elastic materials could be used. Further, since the shutter shaft 5a is bent and inserted, it is necessary to lengthen one shutter shaft 5a, which is a limitation. Further, since it is inserted into the hole, there is a problem that the workability is extremely poor.

The present invention has been made to solve the above problems, and an object of the present invention is to obtain a shutter device that can shorten the shutter shaft, eliminates space restrictions, and is inexpensive and easy to install without material restrictions. And

[Means for Solving the Problems]

In the shutter device according to the present invention, U-grooves into which the shutter shaft is fitted are formed in guide ribs provided on both sides of the back of the cassette opening, and pressing ribs for preventing the shutter shaft from coming off are arranged above the U-grooves. .

[Action]

In the shutter according to the present invention, when the pressing rib is pushed along the guide rib, the pressing rib is expanded and bent,
The shutter shaft is fitted in the U groove bearing. The shutter shaft mounted in the U groove is prevented from coming off by the pressing rib.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1 and FIG. 2, 8 is a guide rib installed on both sides of the back of the cassette mouth 2, and has U grooves 9a, b as bearings on the upper surface and guide ribs from the U groove 9a, b opening. A sloped surface for inserting the shutter shafts 5a, 5b is formed toward the back. Further, 11 is arranged above the U-grooves 9a, b (open side), and when the shutter shafts 5a, b are in the U-grooves 9a, b, they serve as stoppers so that the shutter shafts do not come off the U-grooves. It is a presser rib that fulfills the purpose. Since the other configurations are the same as those of the conventional example, description thereof will be omitted.

In such a structure, the shutter 4 is pushed in the direction of the arrow (A) in FIG. 2, the shutter shafts 5a, 5b are guided along the inclined surface of the guide rib 8, and the pressing rib 11 which is free at one end is expanded. Are fitted into the U grooves 9a, b. The shutter shafts 5a and 5b are mounted so that the shutter shafts 5a and 5b can be freely opened and closed by using the U shafts 9a and 9b as bearings, and the spring 6 is restored to the closed state. Therefore, according to the present embodiment, there is no restriction that an elastic material must be used for the constituent members such as the shutter 4, and a shutter device having a simple structure can be provided.

〔The invention's effect〕

As described above, according to the present invention, it is not necessary to use a material such as a resin having elasticity such as a resin for the shutter by a simple configuration in which the bearing portion is U-shaped and the pressing rib is provided on the opening side thereof. The shutter device can be attached to the bearing portion simply by pushing the shaft along the guide ribs, so that an inexpensive shutter device with good workability can be obtained.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention, FIG. 2 is a sectional view of FIG. 1, FIG. 3 is a cassette and set main body view, and FIG. 4 is an exploded perspective view showing a conventional shutter device. ,
FIG. 5 is a sectional view of FIG. In the figure, 4 is a shutter, 5a and 5b are shutter shafts, 8 is a guide rib, 9a and 9b are U grooves, 10 is a slope, and 11 is a holding rib. The same reference numerals in the drawings indicate the same or corresponding parts.

Claims (2)

[Claims] 1. A shutter device comprising a shutter rotatably supported by a shaft fitted in a bearing on the panel side as a fulcrum, and a guide rib provided on the panel side and having a U groove as a bearing portion, A shutter device comprising: a shutter having a shutter shaft fitted in the U groove; and a holding rib arranged on the opening side of the U groove so that the shutter shaft does not come off. 2. A shutter device according to claim 1, wherein a guide slope is formed from the U groove opening of the guide rib in the shutter shaft insertion direction.