JPS58194102A - Dust cover open-shut device - Google Patents

Abstract

PURPOSE:To prevent an insertion part of a dust cover from getting out of the fitted place suddenly, by providing a rugged shape or a through-hole for the inside of the fitting part between the insertion part of the dust cover and a hinge. CONSTITUTION:The dust cover 2 is fitted to a record disc player main body 3 with the hinges 1. A projection part 2C is provided to the upper surface of the insertion part 2b of the dust cover 2, while a recess part 1g corresponding to the projection part 2C is provided to a fitting part 1f of a turning part 1C of the hinge. In opening the dust cover 2, the projection part 2C of the insertion part 2b and the recess part 1g of the fitting part 1f are fitted with each other with the own-weight and the restoring force of a spring 1d, allowing to prevent the insertion part 2b from getting out of place.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dust cover opening/closing device for a record player. It is related to the device.

Conventionally, a dust cover opening/closing device in which a part of the dust cover can be separated from a hinge has been used. 1st
The figure is an external perspective view showing an example of such a conventional dust cover opening/closing device.

In FIG. 1, 1 is a hinge with one end fixed to the rear of the record player body, 2 is a dust cover attached to the hinge, and 3 is the record player body. FIG. 2 is a perspective view showing the state in which the dust cover 2 is rotated and opened by a hinge.

FIG. 3 is a sectional view showing the hinge, dust cover, and fitting portion into the record player body in a closed state, and FIG. 4 is a sectional view in an open state.

The hinge 1 is attached to a holding portion 3a at the rear of the record player body 3.
A fixed part 1a fitted into the shaft 1b, a rotating part 1c rotatably provided on the shaft 1b, and a spring 1d fitted into the shaft 1b and applying an elastic force between the fixed part 1a and the rotating part 1C. It is configured. Further, the rotating portion 1C is provided with a fitting portion 1e that fits into the insertion portion 2a of the dust cover 2. spring 1d
In the closed state shown in FIG. 3, a load is applied, and in the open state shown in FIG. 4, it is almost free and unloaded. Therefore, if the spring load and the dust cover 2's own weight are adjusted appropriately,
FIG. 2 from the closed state of FIGS. 1 and 3.

It is possible to keep the dust cover stationary at any rotation angle of the dust cover up to just before the open position shown in FIG. 4. Further, by moving the dust cover 2 in parallel in the direction of the arrow in the state shown in FIG. 4, the insertion portion 2a and the fitting portion 1e can be separated and attached.

However, in such a conventional dust cover opening/closing device, the insertion part 2 of the dust cover is attached to the fitting part 1e of the rotating part 1C of the hinge.
When a is mated, there is a slight gap to allow separation and installation, so you can rotate the dust cover by holding both the left and right sides of the dust cover with both hands, or by holding the center with one hand. When you try to rotate the dust cover 2, the fitting condition between the left and right fitting parts and the insertion part becomes uneven, and the dust cover 2
There was a serious drawback in that it was more likely to come off than the rotating part 1c.

The present invention provides a dust cover opening/closing device that solves the above-mentioned conventional drawbacks. Below, the first aspect of the present invention
An embodiment will be described based on FIGS. 5 and 6.

Fig. 5 is a cross-sectional view showing the dust cover in the closed state, and Fig. 6 is a cross-sectional view showing the same in the open state. Explanation will be omitted. A convex portion 2c is provided on the upper surface of the insertion portion 2b of the dust cover 2.
On the other hand, the fitting portion 1g of the rotating portion 1C is provided with four portions 1q at positions corresponding to the convex portions 2c of the insertion portion 2b.

In the configuration of the above embodiment, when the dust cover is opened as shown in FIGS. 1 to 2, the difference in the dust cover due to the own weight of the dust cover 2 and the restoring force of the spring 1d as shown in FIG. When the convex part 2c of the recessed part 2b and the recessed part 1q of the fitting part 1f are fitted together and the state shown in FIG. 2 is to be closed to the state shown in FIG. At the same time, the amount of the vertical gap formed by the insertion part 2b of the dust cover and the fitting part 1f of the rotating part 1C is reversed, and the convex part 2C and the concave part are separated in the same way as when opening the dust cover. 1q are fitted together, and from the fitting part 1f to the insertion part 2
b can be prevented from falling out.

Moreover, when the dust cover is opened and cut as shown in FIG. 6, by slightly moving the dust cover 2 in the closing direction, the insertion portion 2b can be inserted while disengaging the convex portion 2C and the recessed portion 1q. It can be pulled out from the joint 11 and easily separated. On the other hand, it is also easy to install.

FIG. 7 is a cross-sectional view of the embodiment shown in FIG.
A convex portion 2d is provided at the tip. Furthermore, FIG. 8 shows the embodiment of FIG. 3, in which a locking pawl 11 is provided on the inner surface of the fitting portion 1f of the rotating portion 1C, and a locking pawl 11 is provided on the upper surface of the insertion portion 2b. A locking claw 2e is provided.

In each of the embodiments shown in FIGS. 7 and 8, it is possible to obtain the same effects as described above.

It goes without saying that in the embodiments shown in FIGS. 5 and 7, the unevenness, protrusion, and through hole may be provided in either the fitting part or the insertion part.

As described above, according to the present invention, by providing the uneven shape and the through hole in the insertion part of the dust cover and the inner surface of the fitting part of the hinge, the insertion part of the dust cover can be prevented from accidentally coming off from the fitting part. This eliminates the drawbacks of the dust cover, so the dust cover will not fall off during normal opening/closing operations. When the cover is in the open state, an excellent effect can be obtained in that the dust cover can be easily separated and attached.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the dust cover opening/closing device in the closed state, Fig. 2 is a perspective view showing the dust cover in the open state, and Fig. 3 is a perspective view showing the dust cover opening/closing device in the closed state.
The figure is a cross-sectional view showing a conventional dust cover and a hinge in a closed state, FIG. 4 is a cross-sectional view of the same in an open state, and FIG. 5 is a cross-sectional view showing a dust cover and a hinge in an embodiment of the present invention in a closed state. A sectional view, FIG. 6 is a sectional view of the open state, and FIG. 7 is a sectional view of the open state.
8 are sectional views showing other embodiments in a closed state, respectively. 1... Hinge, 1a... Fixed part, 1C.
... Rotating part, 11 f... Fitting part, 1q
...Recess, 1h...Through hole, 3...
...Record player body, 3a...Holding section. Name of agent: Patent attorney Toshio Nakao and one other person II
Garden @ Figure 2 Figure 3 @ Figure 5

Claims (3)

[Claims] (1) A dust cover that is composed of a fixed part and a rotating part, and has a hinge with the fixed part fixed to the record player, and an insertion part that fits into a fitting part formed in the rotating part of this hinge. A dust cover opening/closing device, characterized in that a retaining portion that engages with each other is provided on both the inner surface of the fitting portion of the hinge and the surface of the insertion portion of the dust cover, and the retaining portion is releasable. Device. (2) The dust cover opening/closing device according to claim 1, wherein one of the retaining parts is a convex part and the other part is a concave part or a through hole. (3) Both engaging parts are locking claws that protrude from each other.