JPH05116427A - Opening/closing mechanism for printer cover - Google Patents

Abstract

PURPOSE:To provide an opening/closing mechanism for a printer cover, which has high safety characteristics and is capable of preventing breakage of the printer cover and enhancing its durability, in relation to an opening/closing mechanism for a printer cover mounted on a printer case. CONSTITUTION:In this mechanism, a printer cover 12 has a pair of hinges 16 and one or more stoppers 19, which are provided protrusively at one of end portions thereof, and a case 11 has: supports 17 for supporting one of end portions of the printer cover 12; guides 18 for guiding the hinges 16 when the printer cover 12 supported by the supports 17 is rotated to be opened or closed; and locking parts 20 for locking the stoppers 19 when the printer cover 12 is opened up to its opening position. The overlapping degree of the stoppers 19 on the locking parts 20, with which the stoppers are engaged, is set to the extent wherein the stoppers 19 are disengaged from the locking parts 20 when the printer cover 12 is further opened from its opening position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer cover opening / closing mechanism which is attached to a printer case so as to be openable and closable.

[0002]

2. Description of the Related Art FIG. 5 is a perspective view showing the appearance of a conventional printer. In the figure, 1 is a case for accommodating various devices including a printing mechanism, 2 is a front cover (printer cover), 3 is a single-cut guide. Is. The case 1 is divided into an upper case 4 and a lower case 5, and the front cover 2 is supported by the upper case 4. The opening / closing mechanism of the front cover 2 will be described below with reference to FIG.

FIG. 6 (A) is a side view of the printer of FIG. 5, and FIG. 6 (B) is a detailed view of the essential parts of FIG. 6 (A). The front cover 2 is provided with a pair of hinges 6. Upper case 4
The guide rib 8 with which the shaft 7 of the hinge portion 6 is engaged.
Is provided. When the front cover 2 is opened from the closed position shown by the chain line in FIG. 6A to the open position shown by the solid line, the shut 7 of the hinge 6 engages with the guide rib 8 as shown in FIG. Positioned. When closing the front cover 2, the shaft 7 is separated from the guide rib 8 and then guided by a guide (not shown) on the upper case 4 side to close the front cover 2.

[0004]

However, in the above-mentioned conventional structure, the shaft 7 may be broken when an abnormal force is applied to the front cover 2 and there is a problem in durability. In addition, if the shape of each part is made large as a remedy, the problem of durability will disappear, but on the other hand, the cover cost will increase and it will also become a problem in terms of safety. May be).

SUMMARY OF THE INVENTION It is an object of the present invention to provide a highly safe printer cover opening / closing mechanism capable of preventing damage to the printer cover and improving durability.

[0006]

In order to achieve the above-mentioned object, according to the present invention, in a printer in which a printer cover is openably and closably supported by a case, a pair of hinge parts and a pair of hinge parts are provided at one end of the printer cover. When one or more stopper portions are provided to project, and a support portion for mounting and supporting one end of the printer cover on the case is supported, and the printer cover supported by the support portion is rotated to open and close. A guide part for guiding the hinge part, and a locking part for abutting and locking the stopper part when the printer cover is opened to the open position. The overlapping amount of the stopper portions is set so that the stopper portions are disengaged from the locking portions when the printer cover is further opened from the open position.

[0007]

The printer cover can be opened and closed smoothly because one end of the printer cover is supported by the support part and the hinge part is guided by the guide part. The printer cover that has been opened to the open position is kept in the open position by the stopper portion being locked by the locking portion. When an abnormal force that further tries to open is applied to the printer cover in this state, the stopper part is disengaged from the locking part, so that it is possible to prevent the printer cover from being broken and human injury.

[0008]

Embodiments of the present invention will be described below with reference to FIGS.

FIG. 4 is a perspective view showing the appearance of a printer to which the present invention is applied. In the figure, 11 is a case, 12 is a front cover (printer cover), 13 is a single-cut guide, and 14 is a separator. The front cover 12 is supported by the upper case 15 of the case 11 and can be opened and closed. The structure and operation of the opening / closing mechanism of the froutont cover 12 will be described below with reference to FIGS.

FIG. 1 is a perspective view showing the outline of the structure of the printer cover opening / closing mechanism. In the figure, E is a pair of parts for supporting and guiding the front cover 12, and F is for positioning the front cover 12 at the open position. It is a part. It should be noted that the example in which the F portion is provided at three locations is shown in this figure, but this may be at least one location.

The structure of the upper case 15 side and the front cover 12 side of the E portion will be described with reference to FIG.
A hinge portion 16 is projectingly provided at one end of the frouton cover 12, and a support portion 17 and a guide portion 18 are provided on the upper case 15.
And are provided. Further, in the F portion, as shown in FIG.
As shown in (A), a stopper portion 19 is projectingly provided at one end of the front cover 12, and a locking portion 20 is provided on the upper case 15.
Is provided. The above-mentioned supporting portion 17 is provided in the entire width of the upper case 15, and also exists in the E portion.

The front cover 12 is supported by one end of which is supported by the support portion 17 and is rotatable. The chain line in FIGS. 2 and 3 shows the front cover in the closed position. When the front cover 12 is opened from this state, the front cover 12
2 and 3 with the portion supported by the support portion 17 as a fulcrum.
Then, the stopper portion 19 abuts on the locking portion 20 and is locked and positioned. When the cover is rotated, the guide portion 18 guides the pin 21 (see FIG. 2) protruding from the hinge portion 16, so that the rotation proceeds smoothly. 3A shows the overlapping amount of the tip of the stopper portion 19 with respect to the locking portion 20.

The front cover 12 is further extended from this open position.
When an abnormal force is applied to open the stopper portion 19, the stopper portion 19 is disengaged from the locking portion 20 as shown in FIG. 3B due to elastic deformation of the stopper portion 19 or the like. Therefore, it is possible to prevent the front cover from being broken and human injury which has been a problem in the past. In order to return the detached front cover 12 to its original position, the tip of the stopper portion 19 may be pushed under the locking portion 20 so that one end of the front cover 12 is supported by the support portion 17.

When closing the opened front cover 12, the front cover 12 may be rotated in the closing direction with the portion supported by the supporting portion 17 as a fulcrum.
In the latter stage of this rotation, the pin 21 of the hinge portion 16 is disengaged from the guide portion 18, each hinge portion 16 and each stopper portion 19 are locked to the back side of the support portion 17, and the front cover 12 is positioned at the closed position. To be done.

[0015]

As described above, according to the present invention, even if an abnormal force is applied to an open printer cover, the printer cover is not destroyed or injured, and reliability, It becomes possible to improve safety.

[Brief description of drawings]

FIG. 1 is a perspective view showing a structural outline of a printer cover opening / closing mechanism according to an embodiment of the present invention.

FIG. 2 is a detailed view of a portion E of FIG.

FIG. 3 is a detailed view of an F portion of FIG. 1, FIG. 3 (A) shows an entire structure of the F portion, and FIG. 3 (B) shows an operation of the stopper portion when an abnormal force is applied.

FIG. 4 is a perspective view showing the external appearance of a printer to which the present invention is applied.

FIG. 5 is a perspective view showing an appearance of a conventional printer.

6 is an explanatory view of a conventional printer cover opening / closing mechanism, and FIG.
6A is a side view of the printer, and FIG. 6B is a detailed view of a main part of FIG. 6A.

[Explanation of symbols]

 11 case 12 front cover (printer cover) 16 hinge part 17 support part 18 guide part 19 stopper part 20 locking part

Claims (1)

[Claims] 1. A printer cover (1) is attached to a case (11).
In a printer in which 2) is openably and closably supported, a pair of hinge parts (16) and one or more stopper parts (19) are provided to project from one end of the printer cover (12), and the case is provided. A support part (17) on which one end of the printer cover (12) is placed and supported on the (11) and the printer cover (12) supported by the support part (17) are rotated to open and close. At this time, a guide part (18) for guiding the hinge part (16) and a locking part (abutment) for abutting and locking the stopper part (19) when the printer cover (12) is opened to the open position. 20) and the stopper portion (19) that abuts on the locking portion (20).
The opening and closing of the printer cover is characterized in that the overlapping amount is set so that the stopper portion (19) is disengaged from the locking portion (20) when the printer cover (12) is further opened from the open position. mechanism.