JPH0796955A - Box shaped case - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to provide a means for securely opening and closing the main body case even when the cover case is deformed in a box-shaped case used for a printing device or the like. A bar 11 provided in the main body case 2 is bent in a V shape to form a recessed portion 12 having a tapered surface 13 on a lower surface thereof, and a rib 14 fitted into the recessed portion 12 is formed in the main body case 2. When the bar 11 is formed, the rib 14 is slidably contacted with the tapered surface 13 by the sliding operation of the bar 11 to transform the bar 11 into a V-shaped bent shape and a straight correction shape. Hook 9 of 3
Let a engage and disengage. Therefore, no matter which part of the cover case 3 is pushed to close the main body case 2 side, the hook 7
The a and 9a can be reliably engaged with each other, and even if the cover case 3 is slightly deformed outward, it can be reliably engaged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an openable and closable box-shaped case used as a case for electronic equipment such as a hand-held printer and an electronic notebook.

[0002]

2. Description of the Related Art As a box-shaped case for an electronic device such as a hand-held printing device or an electronic notebook, a main body case and a cover case that are openably and closably connected like a hinge are widely used. The conventional box-shaped case of this type will be described below.

FIG. 6 is a perspective view of a conventional printing device, FIG. 7 is a sectional view of the same, and FIG. 8 is a front view of a bar arranged inside a main body case of the conventional printing device. The box-shaped case 1 is assembled by connecting one end of a main body case 2 and a cover case 3 which is a bottom lid of the main case 2 so as to be openable and closable like a hinge. As shown in FIG. 7, the printing unit 4 is housed inside the main body case 2, and the platen 5 made of a flat plate facing the printing unit 4 is housed inside the cover case 3. The platen 5 is elastically urged by the spring member 6 provided on the back surface thereof so as to be pressed against the printing unit 4.

The bar 7 is arranged inside the main body case 2 along the front edge thereof, and one end of the bar 7 is joined to the spring member 10. On the bottom of the bar 7 is a hook 7
a, 7b, 7c are projected (the hook 7b,
7c is not shown), and a projection 7d on which the spring material 10 is locked is provided on the upper surface of one end portion thereof, and a slide operation button 8 is integrally formed on the front surface of the central portion thereof. The central hook 7b is on the back surface of the slide operation button 8 and is not shown in the figure.

At the front edge of the cover case 3, hook-shaped hooks 9a, 9b, 9c that engage with the hooks 7a, 7b, 7c of the main body case 2 in a detachable manner are provided. Figure 7
3, the bar 7 is slidably arranged in the main body case 2 in the longitudinal direction thereof, and the spring member 10 allows the hooks 7a, 7b, 7c to engage with the hooks 9a, 9b, 9c on the left side in the drawing. It has been raped in the direction of doing.

The box-shaped case 1 is constructed as described above. Next, a method of opening and closing the cover case 3 will be described. With the cover case 3 closed, the hooks 7a, 7b, 7
Since c and the hooks 9a, 9b, 9c are engaged with each other, the cover case 3 does not open unnecessarily. Cover case 3
When opening, the fingertip is put on the slide operation button 8 shown in FIG. 8, and the bar 7 is slid rightward against the spring force of the spring member 10. Then, the hooks 7a, 7 of the main body case 2
b and 7c are detached from the hooks 9a, 9b and 9c of the cover case 3, and the spring member 6 that presses the platen 5 against the printing unit 4 is removed.
The cover case 3 is opened by the reaction force of the spring force. Therefore, the printing paper is replenished on the cover case 3.

When closing the cover case 3, the cover case 3 is pressed against the main body case 2. At this time, the bar 7 is pulled leftward in FIG. 7 by the spring material 10. When the cover case 3 is pressed against the main body case 2, the tapered lower surface a of the tips of the hooks 7a, 7b, 7c.
And the tapered upper surface b of the tip portions of the hooks 9a, 9b, 9c come into contact with each other, and the cover case 3 is strongly pushed toward the main body case 2 side, so that the tapered lower surface a of the hooks 7a, 7b, 7c becomes the hooks 9a, 9b, The tapered upper surface b of 9c is slid slightly to the right in FIG.
By being pulled to the left by 0, the hook 7a,
7b and 7c engage the hooks 9a, 9b and 9c.

[0008]

As described above, the conventional box-shaped case 1 can easily open and close the cover case 3 by one-touch operation, but has the following problems. That is, since the cover case 3 is formed of a flexible material such as a synthetic resin in a thin plate shape, the cover case 3 is easily deformed, and in particular, due to the reaction force of the spring member 6 that elastically pushes the platen 5 upward, It is easily deformed outward. The cover case 3 shown by the chain line in FIG. 7 shows the case deformed outward.

When the cover case 3 is thus deformed outward, the positions of the hooks 9a, 9b, 9c are displaced downward, and even if the cover case 3 is pressed against the main body case 2 by the above-mentioned operation, it is closed. , Hook 7a, 7
b and 7c cannot be engaged with the hooks 9a, 9b and 9c. Particularly in this type of printing apparatus, the platen 5 is shown in FIG.
The cover case 3 is arranged near the right end of the cover case 3 as shown in FIG. 3, and therefore, the cover case 3 has an outside near the end where the platen 5 is arranged due to the reaction force of the spring force of the spring member 6. It is easy to deform toward. However, the user
Since the cover case 3 tends to be closed to the main body case 2 side by pushing near the center part of the cover case 3 in which the central hook 9b is formed, the hook 9 on the platen 5 side at the right end is formed.
There is a problem that it becomes more difficult to engage the hook 7a with the hook 7a. From the above, in the conventional printing device or the like, an instruction sticker or an instruction mark for instructing to press near the right end portion where the platen 5 is arranged may be provided on the cover case 3, or the instruction manual may indicate that. It was taken measures such as explaining.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a box-shaped case having an opening / closing mechanism that can open and close the cover case simply and securely with one touch.

[0011]

To this end, according to the present invention, a bar of an opening / closing mechanism provided in a main body case is bent in a V shape, and a recessed portion having a tapered surface is formed on a lower surface thereof. By forming a rib that fits into this recess on the main body case and sliding this rib against the tapered surface by sliding operation of the bar, the bar is deformed into a V-shaped bent shape and a straight correction shape. The bar hook and the cover case hook are engaged and disengaged.

[0012]

With the above structure, the hook of the main body case and the hook of the cover case can be securely engaged with each other regardless of which part of the cover case is pushed and closed on the main body case side. Even if it is slightly deformed,
The engagement can be ensured.

[0013]

Embodiments of the present invention will now be described with reference to the drawings. 1 is a perspective view of a printer according to an embodiment of the present invention, and FIG. 2 is a sectional view of the same. The same components as those of the conventional example shown in FIGS. 6 and 7 are designated by the same reference numerals and the description thereof will be omitted.

FIG. 3 is a front view of the bar arranged inside the main body case of the printer according to the embodiment of the present invention. The bar 11 has hooks 7 similar to the conventional bar 7 shown in FIG.
a, 7b, 7c, a protrusion 7d, and a slide operation button 8 are integrally formed. In FIG. 3, the central hook 7b is hidden by the slide operation button 8 and is not shown. This bar 11 is different from the conventional bar 7 shown in FIG. 8 in that it is bent in a V shape at an angle α and that a recess 12 is formed on the left side of the hook 7a at the right end. . The bar 11 is made of a flexible material such as synthetic resin.

FIG. 4 is a partial perspective view of the main body case of the printer according to the embodiment of the present invention in the vicinity of the recessed portion. Body case 2
A rib 14 is provided on the side. The rib 14 is fitted inside the recess 12, and the upper end of the rib 14 has the tapered surface 13.
Is in sliding contact with. 5A and 5B are partial front views of the opening / closing mechanism of the main body case and the cover case of the printing apparatus according to the embodiment of the present invention. Next, the opening / closing operation of the main body case 2 and the cover case 3 will be described with reference to the drawings.

In the hook 7a shown by a solid line in FIG. 2, the cover case 3 is closed to the main body case 2 side and the cover case 3 is
It shows a state of being engaged with the hook 9a on the side. In this state, all the hooks 7a, 7b, 7 on the main body case 2 side
c is all hooks 9a, 9b, 9 on the cover case 3 side
c is engaged. Further, in this state, the rib 14 on the main body case 2 side abuts the lower portion of the tapered surface 13 of the recessed portion 12,
The right end portion of the bar 11 is pushed upward, and the bar 11 is deformed from the V-shaped bent shape shown in FIG. 3 to the linear correction shape.

Now, when opening the cover case 3, as shown in FIG.
Put your fingertip on the slide operation button 8 shown in, and
The bar 11 is slid rightward (arrow N1) against the spring force of. FIG. 5A shows the vicinity of the right end portion of the bar 11 during this slide. When the bar 11 slides to the right N1 in FIG. 5 (a), the rib 14 fits into the inner part (upper part) of the recessed part 12 along the tapered surface 13, so that the right end side of the bar 11 has its own elasticity. Down (arrow N2)
Deformed into a V-shaped bent shape (natural shape) as shown in FIG.
Return to. As the bar 11 bends in the V-shape in this way, the hook 7a of the bar 11 slightly descends in the direction of the arrow N2 and wraps around the hook 9a of the cover case 3 as shown in FIG. 5A. Bar 1 indicated by a broken line in FIG.
1 indicates the state at this time. Then, when the fingertip is released from the slide operation button 8, the bar 11 slides to the left (arrow N3) by the spring force of the spring material 10, and the hook 7
2a is engaged with the hook 9a to be in the engaged state shown by the solid line in FIG. 2, and the cover case 3 is firmly closed. Of course, the other hooks 7b and 7c are also engaged with and disengaged from the hooks 9b and 9c on the cover case 3 side similarly to the hook 7a. When the bar 11 is slid to the right N1 in this manner, the hook 7a turns downward N2, whereby the cover case 3 is deformed downward and the hook 9a is slightly displaced downward as shown by a chain line in FIG. However, the hook 7a can be reliably engaged with the hook 9a. When the slide operation button 8 is slid to the right, the hooks 7a, 7b, 7c are disengaged from the hooks 9a, 9b, 9c, and the cover case 3 is easily opened by the reaction force of the spring member 6.

[0018]

As described above, in the box-shaped case of the present invention, when the slide operation button is operated, the bar is deformed by its elasticity, so that the hook on the main body case side can be securely fixed to the hook on the cover case side. It can be engaged and disengaged, and the cover case can be opened and closed with one touch. Especially when the cover case is deformed outward and the position of the hook is slightly displaced, it is possible to close the cover case by securely engaging the hooks with each other. Can be surely closed.

[Brief description of drawings]

FIG. 1 is a perspective view of a printer according to an embodiment of the present invention.

FIG. 2 is a sectional view of a printer according to an embodiment of the present invention.

FIG. 3 is a front view of a bar arranged inside a main body case of the printing apparatus according to the embodiment of the present invention.

FIG. 4 is a partial perspective view of the vicinity of a recessed portion of the main body case of the printer according to the embodiment of the present invention.

5A is a partial front view of an opening / closing mechanism of a main body case and a cover case of the printing apparatus according to the embodiment of the present invention. FIG. 5B is an opening / closing mechanism of the main body case and the cover case of the printing apparatus according to the embodiment of the present invention. Partial front view

FIG. 6 is a perspective view of a conventional printing device.

FIG. 7 is a sectional view of a conventional printing device.

FIG. 8 is a front view of a bar arranged inside a main body case of a conventional printing device.

[Explanation of symbols]

 1 Box-shaped case 2 Main body case 3 Cover case 4 Printing part 5 Platen 6 Spring material 7a, 7b, 7c, 9a, 9b, 9c Hook 8 Slide operation button 10 Spring material 11 Bar 12 Recessed portion 13 Tapered surface 14 Rib

Claims (2)

[Claims] 1. A box-shaped case comprising a main body case and a cover case hingeably connected to the main body case so as to be slidable in a longitudinal direction thereof along a front edge of the main body case. And a flexible bar formed with a hook and a slide operation button which are detachably engaged with a hook formed on the front edge of the cover case, and the hook of the cover case. A spring member that repels the bar in a direction in which the hook of the bar engages, the bar is bent in a V shape, and a concave portion having a tapered surface is formed on the lower surface thereof, and Forming a rib that fits into this recess, and sliding the rib into sliding contact with the tapered surface to transform the bar into a V-shaped bent shape and a straight correction shape. Ri, box-shaped case, characterized in that so as to perform disengaging the hook of the cover case and the hooks of the bar. 2. A printing section is provided inside the main body case, and a platen facing the printing section and a spring member for pressing the platen against the printing section are provided inside the cover case. The box-shaped case according to claim 1.