JPS6226867Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a new lid opening/closing device used for modular stereo or record player racks.By holding the lid on two moving axes, the lid can be balanced. This allows for a smooth opening/closing feeling.

According to the drawing, in Fig. 1, there is a glass lid 2 on the top of the separate type stereo rack 1.
is attached so that it can be opened and closed freely. The opening/closing device according to this invention is installed on both sides of the rear end of the glass lid 2.To explain only one side of the opening/closing device, in FIGS. A substrate 3 made of synthetic resin, for example, is embedded and fixed in the portion, and this substrate 3 has a relatively long first guide groove 4 extending in the vertical direction and a relatively short second guide groove 5 extending diagonally. The upper end of the first guide groove 4 has a slightly narrower width. A first slider 6 made of synthetic resin or a plate spring is press-fitted into the first guide groove 4 and has an approximately X-shape in plan and has a shaft insertion hole 6a in the center. It is slidable up and down within the first guide groove. A second slider 7, also made of synthetic resin or a leaf spring, is press-fitted into the second guide groove 5 and has a substantially U-shape in plan and has a central shaft insertion hole 7a. It can be slid diagonally up and down at short intervals. On the other hand, a holding member 8 having a front U-shape is fitted into one side of the rear end of the glass lid 2, and is fixed via a backing plate 9 with screws 10a and 10b. This holding member 8 has two shaft parts 1 on the sides.
1 and 12 are provided protrudingly, and as shown in FIG.
It is rotatably inserted into a.

Next, to explain the function and effect, when the glass lid is closed, the first slider 6, the second slider
Both sliders 7 are located at the upper ends of the first guide groove 4 and the second guide groove 5, respectively, and especially the first slider 6
The first guide groove 4 is in a strong pressure contact state because the width of the first guide groove 4 at that portion is narrowed.

Now, when you hold the front side of the glass lid 2 and lift it upward, the shaft parts 11 and 12 protruding from the holding member 8 rotate within the first slider 6 and the second slider 7, and at the same time As the second slider 7 slides down the first slider 6 through the respective first guide grooves 4 and second guide grooves 5, some resistance will be encountered at first, but once the first slider 6 is opened to a certain extent, Because the glass lid 2 tends to fall toward the lower end of each guide groove 4, 5 due to its weight, it opens lightly and smoothly, and in experiments, it was opened with approximately half the torque of the lid's weight. was completed.

Then, either the first slider 6 or the second slider 7 is connected to the first guide groove 4 and the second slider 7, respectively.
When the lower end of the guide groove 5 is reached, the guide groove 5 is not opened any further and is maintained in a state in which it does not close naturally.

Next, when closing the glass lid 2, it is preferable to pull the glass lid 2 toward you and push it down, or alternatively, simply push it down a little forcefully so that it can be closed smoothly. Just before the first slider 6 is completely closed, the first slider 6 moves to the upper part of the first guide groove 4, which suddenly becomes narrower, so that the resulting braking action prevents the glass lid 2 from closing suddenly.

Note that the lid may be made of wood or synthetic resin instead of the glass lid.

FIG. 4 shows another embodiment, in which the first guide groove 13
is provided with a convex portion 13a at an intermediate position thereof, and the slider 1 moves within this guide groove 13.
4 is adapted to be caught on this protrusion 13a.

This configuration has the advantage that it is possible to easily hold the glass lid 2 at a click stop and hold it at a brake stop at an intermediate opening angle.

Of course, a concave portion may be used instead of a convex portion, and the caught slider 14 can overcome this convex portion or concave portion by strongly pushing the lid upward or downward.

In addition, by changing the position and angle of each guide groove, the moment with respect to the holding member changes, so it is possible to adjust the holding and opening/closing structure to suit the balance depending on the shape, material, and type of the lid other than the example. It is also possible to obtain the same feeling individually.

As explained in detail above, according to this idea,
With a simple structure, the lid can be opened and closed smoothly with a well-structured opening/closing feeling without feeling the weight of the lid, and can be easily held at an intermediate opening angle.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention, and FIG. 1 is a perspective view of a stereo rack using this invention;
Figure 2 is a side view of the same part, Figure 3 is an exploded perspective view of the same part,
FIG. 4 is a partial side view showing another embodiment. 1... Rack, 2... Glass lid, 4... First guide groove, 5... Second guide groove, 6... First slider, 7... Second slider, 8... Holding member,
11, 12...Axle part.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A pair of guide grooves at different positions are provided on the side plate side of the box body, sliders are fitted into the guide grooves, and each slider has a pair of shaft parts protruding from the lid side. A lid opening/closing device, characterized in that it is rotatably mounted, and a slider moves in a guide groove in conjunction with the opening/closing operation of the lid to permit opening/closing of the lid. 2. characterized in that the slider is configured to move in the guide groove while encountering frictional resistance,
A lid opening/closing device according to claim 1 of the utility model registration claim. 3. The lid opening/closing device according to claim 1, wherein the guide groove is provided with a convex portion or a concave portion for inhibiting movement of the slider.