JPS63151099A - Apparatus for opening and closing cover - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a lid opening/closing device for an electrical appliance in which an operation button or the like is formed in a recess that is opened and closed by the lid.

BACKGROUND OF THE INVENTION A conventional lid opening/closing device, as shown in FIGS. 4 and 6,
A protruding shaft 12 protruding into the recess 2 of the cabinet 2 of the device main body is fitted into a hole in one of the support pieces provided on the back side of the lid 1, and an operation button 14 is arranged in the recess 2. That's what I did. In this lid opening/closing device, in order to open the lid 1, the locking mechanism 13 that fixes the lid 1 in the closed state is released, and the lid 1 incorporated in the cabinet 2 is pivoted. It rotates in the opening direction about 12 and becomes open as shown by the dotted line. Conversely, to close the lid 1f, press the lid 1.
The locking mechanism 1 is rotated in the closing direction about the shaft 12.
By locking 3, it becomes closed.

Problems to be Solved by the Invention However, in the conventional device, when the lid 1 is in the open state shown by the dotted line in the case of FIG. 4, most of the lid 1 protrudes beyond the surface 16 of the cabinet 2. Therefore, when operating the operation button 14, there is a problem that your hand hits the lid 1, impairing the operability, and if you do not look in the direction of the arrow, the cabinet 2
There was a problem in that the display section and operation section 14 provided on the surface of the recess 25 could not be seen. In order to improve this problem, as illustrated in FIG. 6, a method may be adopted in which the position of the shaft 12 is moved upward in the recess 2A to reduce the amount of protrusion of the lid 1 from the cabinet 2. However, in this case, the lid body 1
Since the locus drawn by the lower surface 16 of the lid 1 when the lid 1 opens and closes has a large range as shown in the imaginary line, it is necessary to take up a considerable amount of space than the lid opening/closing part in order to place parts, mechanisms, etc. at the bottom of the lid opening/closing part. This has the drawback of making the main body of the device large.

The present invention solves these conventional problems, and has a simple structure that reduces the amount of protrusion of the lid from the main body of the device.
It is an object of the present invention to provide an excellent lid opening/closing device in which the lower surface of the lid does not penetrate into the lower part.

Means for Solving the Problems In order to achieve the above objects, the lid opening/closing device of the present invention has the following features:
A support piece is provided at the lower end of the back surface of the lid surface and extends in a direction perpendicular to the lid surface, and a first support piece is provided on the outer surface of the support piece in the extending direction of the support piece. A lid body with second protruding shafts arranged in parallel and a first protruding shaft on the side close to the lid surface are fitted, and the first salient shaft is movably guided in a direction perpendicular to the lid surface. a device main body provided with a guide groove; a rotating arm rotatably provided in the device main body and having a hole into which a second protruding shaft on a side farther from the lid surface is inserted; and a rotating arm held in the device main body. and includes a spring member whose one end is constantly pressed against the first protruding shaft across the guide groove, and when the lid body is opened and closed, the first protruding shaft moves linearly and the second protruding shaft moves. It is characterized by being configured to rotate.

Function The lid opening/closing device of the present invention is provided with two protruding shafts on the outer surface of a support piece extending perpendicularly to the lid surface at the lower end of the rear surface of the lid surface of the lid, and Of these, the first protruding shaft on the side close to the lid surface is attached to the guide groove provided in the device main body, and the other protruding shaft is attached to the hole provided in the rotating arm provided in the device main body. Since it is configured to be inserted, when the lid is opened and closed, the first protruding shaft on the side close to the lid surface moves linearly, and the other protruding shaft performs rotational movement, so that the lower surface of the lid moves when the lid is opened and closed. Because the lid does not go into the bottom at times, and even when the lid is open, the amount of the lid protrudes from the main body of the device is small.
The operability and quality of the operation button are improved, and parts, mechanisms, etc. can be easily arranged in a small space under the lid opening/closing part.

Embodiment Hereinafter, a lid opening/closing device according to an embodiment of the present invention will be explained with reference to the drawings. In FIG. 1, the lid body 1 has a support piece 1 extending perpendicularly to the lid surface at the lower part of the back surface of the lid surface, and a first support piece 1 on the outer surface of the support piece. The second protruding shafts 3 and 4 are integrally constructed, and the first protruding shaft 3 is placed in the guide groove 1o provided in the cabinet 2, and the second protruding shaft 4 is placed in the cabinet 2 with the axis 7 centered thereon. It is inserted into a hole 6 of a rotating arm 5, which is provided so as to be rotatable. and,
The toggle spring 8 is inserted into a shaft 9 provided in the cabinet 2, and the dogleg-shaped tip of the toggle spring 8 is hooked onto the first protruding shaft 3 of the lid body 1 incorporated in the cabinet 2. .

The operation of the lid opening/closing device configured as described above will be explained below with reference to FIGS. 2 and 3.

First, regarding the opening operation, as shown in FIG. 2, by pressing the lid 1 in the direction of the arrow with the finger 11, the first protrusion @3 moves in the direction of the arrow along the guide groove 10 of the cabinet 20. Also, the second protruding shaft 4 is guided by the rotating arm 6 and rotates in the direction of arrow B. Here, the first protruding shaft 3 moves in the entry direction, and when it overcomes the dogleg-shaped bent part of the toggle spring 8, the toggle spring 8 moves in the direction of arrow C shown in FIG.
The lid body 1 is held in the open state by pressing the lid body 1.

Next, for the closing operation, perform the opposite operation to the opening operation,
That is, in FIG. 3, by pressing the lid 1 with the finger 11 in the direction of arrow A', the first protruding shaft 3 moves in the direction of arrow A', and the second protruding shaft 4 rotates in the direction of arrow B'. Then, the first
When the protruding shaft 3 passes over the dogleg-shaped bent portion of the toggle spring 8, the toggle spring 8 presses in the direction of arrow C' shown in FIG. 2, thereby holding the lid 1 in the open state.

By the above-described operation, it is possible to make the locus drawn by the lower surface of the lid body 1 very small as shown in the range of the imaginary line shown in FIG.

Effects of the Invention As described above, the lid opening/closing device of the present invention has a support piece extending perpendicularly to the lid surface at the lower end of the back surface of the lid surface, and an extension of the support piece on the outer surface of the support piece. 1st in the direction of installation. A lid body with second protruding shafts arranged in parallel and a first protruding shaft on the side close to the lid surface are fitted, and the first salient shaft is guided to a movable part in a direction perpendicular to the lid surface. a device body provided with a guide groove; a rotating arm rotatably provided on the device body and having a hole into which a second protruding shaft on the side farther from the lid surface is fitted; a spring member that is held and one end of which is constantly pressed against the first protruding shaft across the guide groove; the first protruding shaft moves linearly when the lid body is opened and closed, and the second protruding shaft Since it is configured to rotate, the trajectory drawn by the lower surface of the lid when it enters the cabinet when opening and closing is extremely small, improving the quality and operability of the operation buttons. Since parts and the like can be placed close to the lower part of the lid, it is possible to downsize the device body.

Further, since a toggle spring is used instead of a locking mechanism as a device for fixing the lid in the closed state and the open state, there is an advantage that the operability of opening and closing the lid is improved.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view showing a lid opening/closing device according to an embodiment of the present invention, FIG. 2 is a sectional view showing the lid of the device in a closed state, and FIG. 3 is a sectional view of the lid of the device. A sectional view showing the open state;
FIG. 4 and FIG. 6 are cross-sectional views showing a conventional lid opening/closing device. 1...Lid body, 1mm...Support piece, 2...
... Cabinet, 3 ... First protruding shaft, 4
...Second protruding shaft, 5...Rotating arm,
8... Toggle spring, 1o... Guide groove. 1 t-J Figure 4 Figure 5

Claims (1)

[Claims] A lid having a support piece extending perpendicularly to the lid surface at the lower end of the back surface of the lid surface, and first and second protruding shafts arranged in parallel on the outer surface of the support piece in the extending direction of the support piece. a device main body provided with a guide groove into which a first protruding shaft on the side close to the lid surface is fitted and guides the first protruding shaft so as to be movable in a direction perpendicular to the lid surface; a rotating arm that is rotatably provided on the device body and has a hole into which the second protruding shaft on the side farther from the lid surface is fitted; A spring member is provided which is always pressed against the first protruding shaft, and the first protruding shaft is configured to move linearly and the second protruding shaft is rotated when the lid body is opened and closed. Lid opening/closing device.