JPH10270867A - Cover opening/closing structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize convenience of handling and prevent a body case or a cover case from being broken due to incorrect operation procedure by such a structure for operation that the cover case can be rotated after it is slid or it can be slid after rotated. SOLUTION: This structure is provided with a groove 5 for sliding cover case along a direction of sliding operation of a cover case 2 on the outer side surface of a body case 1 and grooves 6A and 6B for rotary operation on both ends of the main body 1. The cover case 2 is provided with a sliding projection 7 on its inner side surface which is slidable in the groove 5 and rotatable in the grooves 6A and 6B, and when the projection 7 is at a closing position, it is within the groove 6A, and then it is rotated within the groove 6A to start opening operation from the closing state, or it is slid in the groove 5 to start opening operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover opening / closing structure, and more particularly to a cover opening / closing structure suitable for a cover opening / closing structure of a small electronic device.

[0002]

2. Description of the Related Art Small electronic devices such as calculators are designed so that a display case or a key operation unit disposed on an upper surface side of a main body case is protected by covering a main body case with a lid case for carrying. There are many. As for such a lid opening / closing structure of a small electronic device, many proposals have been made so far, in which the lid case is rotatable with respect to the main body case, or the lid case is slidable so that the lid case can be opened and closed with respect to the main body case. In the lid opening / closing structure in which the lid case is rotatable with respect to the main body case, the lid case is rotated by 360 degrees in order to eliminate the disadvantage that the open lid case swings up and down and is difficult to use. In some cases, it is rotatable with respect to the case and can be arranged on the lower surface of the main body case. In the case of a lid opening / closing structure in which the lid case is slidable with respect to the main body case, the lid case simply exposes the display or key operation part on the top of the main body case, and extra space is required for sliding the lid case. In order to solve the disadvantage that a large space is taken and the usability is not good, there is a method in which the lid case is once removed from the main body case, turned over, and then attached to the main body case. However, such a lid opening / closing structure has a disadvantage that the inner surface of the lid case is exposed and the external appearance is poor in the former rotation type, and the attachment / detachment work of the lid case to / from the main body case is complicated in the latter sliding type. There is a disadvantage that it is.

[0003] In order to solve the conventional drawbacks, for example, as disclosed in Japanese Utility Model Laid-Open Publication No. 5-53272, the lid case is moved relative to the main body case by the above-mentioned rotation type and slide type. As a structure with both functions, the lid case is rotatably supported by the hinge mechanism at the rear end of the main body case, and when not in use, the top case is covered with the lid case, so that the display section or key operation section In use, the lid case is rotated by the hinge mechanism at the rear end of the main body case at the time of use, and after a predetermined rotation, the lid case can be slid along the guide groove formed on the side wall of the main body case. In some cases, the lid case can be hidden under the main body case. According to such a lid opening / closing structure, since the inner surface of the lid case is not exposed, poor appearance is solved, and there is no complicated attaching / detaching operation such as removing the lid case from the main case.

[0004]

However, in the case of the lid opening / closing structure disclosed in Japanese Utility Model Laid-Open Publication No. 5-53272, there is an operation procedure to be followed by the user in opening / closing the lid case with respect to the main body case. From the viewpoint of the user, if there is no explanation about the operation procedure, there is a problem that the opening and closing operation of the lid case is confused and the handling is very inconvenient. If this problem is specifically described, in the lid opening / closing structure of this publication, it is unclear whether the lid case should be rotated and then slid, or whether the lid case should be slid and then rotated. When the worst case is considered, the main case or the lid case may be damaged due to an incorrect opening / closing operation procedure of the lid case.

[0005]

In the lid opening / closing structure according to the present invention, the lid case is operated from either a rotating operation or a sliding operation with respect to the main body case from a closed position where the lid case covers the upper surface of the main body case. The above-mentioned problem is solved by a configuration in which the two cases are engaged with each other so that an opening operation for releasing the upper surface of the main body case to the outside can be started.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a side view of a small electronic device such as a calculator provided with a lid opening / closing structure according to an embodiment of the present invention. FIG. 2 shows a main body case of FIG. 1, and FIG. 2B is a side view, FIG. 3 shows the lid case of FIG. 1, FIG. 3A is a plan view thereof, and FIG. 3B is a side view thereof. Referring to these drawings, the calculator as a small electronic device includes a main body case 1 and a lid case 2. The main body case 1 has a rectangular shape in a plan view, and a display unit 3 made of liquid crystal or the like is provided on the rear side of the upper surface 1a as viewed from the user side, and the front side of the upper surface 1a excluding the display unit 3 is provided. A key operation unit 4 including a plurality of keys is provided.

The main body case 1 has a slit-shaped slide operation groove 5 formed on each of both outer side surfaces 1b along a slide operation direction of the lid case 2 described later, and both ends of the slide operation groove 5 are formed. Rotational operation grooves 6A and 6B are formed in the respective portions in a circular shape having a groove depth deeper than the slide operation groove 5 and a diameter larger than the groove width of the slide operation groove 5.

The lid case 2 has a flat surface 2a having an area capable of covering the upper surface 1a of the main body case 1 and inner side surfaces 2b vertically bent at both side edges thereof.
In the closed position that covers the upper surface 1a of the main body case 1, both inner side surfaces 2b face the respective outer side surfaces 1b of the main body case 1. An elongated slide projection 7 is formed on the rear side of each of the inner side surfaces 2b so as to be slidable in the slide operation grooves 5 of the main body case 1 and rotatable in the rotation operation grooves 6A and 6B. Have been.

In the lid opening / closing structure of this embodiment, when the lid case 2 is opened / closed with respect to the main body case 1, the upper surface 1 a of the main body case 1 is covered and closed by the flat surface 2 a of the lid case 2. In the position, the slide projection 7 of the lid case 2 is turned to one of the rotation operation grooves 6A.
It is also possible to start the opening operation by rotating the slide projection 7 of the lid case 2 in the one rotation operation groove 6A from this closed position state. It is also possible to start the opening operation by sliding, and therefore, the operation procedure of opening the lid case 2 with respect to the main body case 1 is not limited to the operation procedure of performing the sliding operation after the rotating operation, or the operation procedure of performing the rotating operation after the sliding operation. The procedure is sufficient, so that the body case 1 and the lid case 2 are not damaged due to the above-described operation error.

Hereinafter, this operation will be described.

(1) Operation procedure for sliding the lid case 2 after the rotation operation (see FIG. 4): First, as shown in FIG. 4a, when the lid case 2 is in the closed position covering the upper surface of the main body case 1, Rotational operation groove 6A on the rear side of main body case 1
The slide projection 7 of the lid case 2 is located inside. When the lid case 2 is rotated from the closed position to lift the lid case 2 in the direction shown by the arrow, the slide projection 7 can rotate within the rear-side rotation operation groove 6A. It is rotated as shown in FIG. Further, in FIG. 4C, when the cover case 2 is rotated and the rotation operation angle is 180 degrees, the length direction of the slide projection 7 of the cover case 2 is aligned with the groove direction of the slide operation groove 5 of the main body case 1. , The slide projection 7
Can enter the slide operation groove 5. Accordingly, when the lid case 2 is slid from the state shown in FIG. 4C in the direction of the arrow, the slide projection 7 of the lid case 2 slides in the slide operation groove 5 of the main body case 1 as shown in FIG. Further, if this sliding operation is continued, eventually, the sliding protrusion 7 of the lid case 2
4e enters the front-side rotation operation groove 6B of the main body case 1 as shown in FIG. 4e. As a result, the lid case 2 can be slid after the rotation operation with respect to the main body case 1 so that the lid case 2 can be stored in the lower surface 1c of the main body case 1. The operation state of operation 4 becomes possible.

(2) Operation procedure for rotating the lid case 2 after the sliding operation (see FIG. 5): First, the lid case 2 is in the closed position covering the upper surface 1a of the main body case 1 as shown in FIG. 5a. In the figure, the slide projection 7 of the lid case 2 is located in the rotation operation groove 6A on the rear side of the main body case 1.
In this closed position, the slide projection 7 of the lid case 2 is located in line with the slide operation groove 5 of the main body case 1. Therefore, when the lid case 2 is slid in the direction shown by the arrow in FIG. The slide projection 7 slides into the slide operation groove 5 of the main body case 1. When the lid case 2 is further slid in the direction of the arrow, the slide projection 7 of the lid case 2 enters the front-side rotation operation groove 6A of the main body case 1 as shown in FIG. In this state, since the slide projection 7 of the lid case 2 is rotatable in the front side rotation operation groove 6A of the main body case 1, when the lid case 2 is rotated in the direction shown by the arrow, FIG. As shown in FIG. 5, the lid case 2 pivots around the front side pivoting operation groove 6A as a fulcrum, so that the lid case 2 can be stored in the lower surface 1c of the main body case 1 as shown in FIG.
The calculator is in a use state in which the key operation unit 4 on the exposed upper surface 1a of the main body case 1 can be operated.

As described above, in the lid opening / closing structure according to the present embodiment, the lid case 2 can be opened and closed with respect to the main body case 1 by any operation procedure. And body case 1 and lid case 2
Will not be damaged.

In the above-described embodiment, the slide projection 7 is provided on the lid case 2, the slide operation groove 5 is formed on the main body case 1, and the rotation operation groove 6A is formed on each end of the slide operation groove 5. , 6B are provided, a slide operation groove 5 is provided on the lid case 2, and rotation operation grooves 6A, 6B are provided at both ends of the slide operation groove 5, respectively.
Even when the slide projection 7 is provided on the main body case 1, the present invention can be similarly implemented.

[0016]

As described above, according to the present invention, the following effects can be obtained.

According to the first aspect of the present invention, the lid case can be moved from the closed position where the lid case covers the upper surface of the main body case to the main body case by any of a rotating operation and a sliding operation. Since these two cases are engaged with each other so that the opening operation of releasing the upper surface to the outside can be started, the lid case can be opened and closed with respect to the main body case by any operation procedure, as in the conventional case. The main body case and the lid case will not be damaged due to an incorrect operation procedure.

According to the second aspect of the present invention, at the closed position, the inner surface of the lid case faces the outer surface of the main case, and either the outer surface of the main case or the inner surface of the lid case is connected to the lid case. Has a slide operation groove along the slide operation direction and has a rotation operation groove at each end of the slide operation groove, and the other of the outer surface of the main body case or the inner surface of the lid case is A slide protrusion that is slidable in the slide operation groove and rotatable in the rotation operation groove, and in the closed position, the slide protrusion is engaged in one of the rotation operation grooves. Starting the opening operation of the lid case by rotating the slide protrusion in one of the rotation operation grooves from the state of the closed position also slides the slide operation groove to open the lid. Since it is also possible to start the opening operation of the case, the lid case can be opened and closed with respect to the main body case by any operation procedure, and the main body case or the lid case can be The slide projection of the lid case can be reliably slid in the slide operation groove or rotated in the rotation operation groove, and the operation is stabilized.

According to the third aspect of the present invention, the slide operation groove has a slit shape in the slide operation direction, and the rotation operation groove has a circular shape. As a result, the inside of the slide operation groove can be slid and the inside of the rotation operation groove can be rotated, so that the operation is stabilized.

According to the fourth aspect of the present invention, when the opening operation is an opening operation by rotating the slide projection in one of the rotation operation grooves, the slide projection is provided after the opening operation. The lid case is stored in the lower surface of the main body case by sliding the inside of the slide operation groove,
When the opening operation is an opening operation in which the slide projection is rotated in one rotation operation groove, the slide projection is rotated in the other rotation operation groove after the opening operation. By storing the lid case on the lower surface of the main case, the exposed upper surface of the main case can be used by storing the lid case on the lower surface of the main case. When applied to a small electronic device, its use becomes convenient.

[Brief description of the drawings]

FIG. 1 is a side view of a calculator to which a lid opening and closing structure according to an embodiment of the present invention is applied.

FIG. 2A is a plan view of the main body case of FIG. 1;
(B) is a side view.

3A is a plan view of the lid case of FIG. 1, and FIG.
Is a side view.

FIG. 4 is a diagram for explaining a case in which a sliding operation is performed after the lid case is rotated.

FIG. 5 is a diagram for explaining a case in which a lid case is rotated after a slide operation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body case 2 Lid case 3 Display part 4 Key operation part 5 Sliding operation groove 6A, 6B Rotation operation groove 7 Slide protrusion

Claims (4)

[Claims] An opening for releasing the upper surface of the main body case from the closed position in which the lid case covers the upper surface of the main body case by rotating or sliding the main body case with respect to the main body case. A lid opening / closing structure, wherein the two cases are engaged with each other so that operation can be started. 2. In the closed position, the inner surface of the lid case faces the outer surface of the main body case, and either the outer surface of the main case or the inner surface of the lid case slides along the sliding operation direction of the lid case. An operating groove, and a rotating operation groove at each end of the sliding operation groove; and either the outer surface of the main body case or the inner surface of the lid case slides in the sliding operation groove. A sliding projection that is rotatable and rotatable in the rotation operation groove. In the closed position, the slide projection is engaged in one of the rotation operation grooves. Starting the opening operation of the lid case by rotating the slide protrusion in one of the rotation operation grooves from the state also starts the opening operation of the lid case by sliding in the slide operation groove. Cover opening and closing structure according to claim 1, characterized in that Rukoto it was possible with. 3. The lid opening / closing structure according to claim 2, wherein the slide operation groove has a slit shape in the slide operation direction, and the rotation operation groove has a circular shape. 4. When the opening operation is an opening operation by rotating the slide projection in one of the rotation operation grooves,
After the opening operation, the lid case is housed in the lower surface of the main body case by sliding the slide protrusion in the slide operation groove, and the opening operation causes the slide protrusion to be rotated by one of the rotation operation grooves. When the opening operation is performed by rotating the inside, after the opening operation, the lid case is housed in the lower surface of the main body case by rotating the slide protrusion in the other rotation operation groove. The lid opening / closing structure according to claim 2 or 3, wherein: