JPS6329575Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a lid opening/closing mechanism for, for example, a printer case.

[Conventional technology and its problems]

Conventionally, for example, in desktop printers, a lid is provided on a part of the case that can be opened and closed in order to change the recording paper, and levers and knobs are used to open and close this lid, but these are all attached to the case. Since it is largely exposed to the outside, it does not look dull on the outside,
This reduced the product value, and the levers and knobs were easily damaged by external shocks.

There are also known lid opening/closing mechanisms with a magnetic catch type locking mechanism, but the conventional type has the disadvantage that the structure of the magnetic catch part is complicated and the cost is high. In order to maintain the lid in a half-open state using the Yatsuchi method, the structure was complicated.

[Purpose of invention]

Therefore, the purpose of this invention is to provide a lid opening/closing mechanism equipped with a magnetic catch type locking mechanism.
To easily open and close a lid by easily holding the lid in a half-open state.

[Means to achieve the purpose]

In order to achieve the above object, the lid opening/closing mechanism according to the present invention provides a case that has an opening and a lid that covers the opening. A magnet is provided on one side, and a magnet or magnetic material is provided on the other side, and an operation button is slidably provided in the case so as to face the lid in the same plane. An upwardly inclined surface is formed on the opposite end surface of the operating button, and a downwardly inclined surface is formed on the opposite end surface of the lid, and the operating button is springed in the backward direction by a return spring. In order to hold the lid in a half-open state, a position holding protrusion is provided on one side of the back side of the lid and on the top surface of the tip of the operation button, and the other side is capable of engaging and disengaging from the position holding protrusion. A position holding groove is formed.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, an opening 2 is provided at the top of a printer case 1, and this opening is covered with a lid 3. A locking piece 3a is integrally provided on the left side of the lid 3, and this locking piece 3a engages with the back surface of the left side edge of the opening 2. In addition, a flat magnet 4 is attached to the back side of the right edge of the lid 3.
This magnet is attracted to a magnet 5 attached to the edge 1a of the opening 2, thereby locking the lid.

The right side of the case opening 2 is a recess 1b, and an operation button 6 is disposed within this recess.
The button 6 is positioned so as to be substantially flush with the lid 3 in the closed state, and is provided so as to be slidable toward the magnets 4 and 5. The opposing end surfaces of the lid 3 and the operation button 6 are respectively formed into an upwardly inclined surface 6a on the operation button 6 side and a downwardly inclined surface 3b on the lid 3 side. This allows the tip of the operation button 6 to slip into the back surface of the lid 3 and lift the right side of the lid 3. Furthermore, a position holding groove 3c is formed on the right edge of the back surface of the lid 3.
A position holding protrusion 6b is formed at the top end of the operation button 6, which engages with the position holding groove 3c to hold the lid 3 in a half-open state when the top end of the operation button 6 slips into the back surface of the lid 3. It has been done. The entire upper surface of the operation button 6 is made into a finely uneven surface by forming a large number of small protrusions having the same shape as the position holding protrusions 6b.

On the other hand, a support portion 7 is provided protruding from the back surface of the operation button 6, and this support portion movably passes through a guide groove 1c provided in the case 1. A hole 7a is provided in the support portion 7 in a penetrating manner in a direction intersecting the sliding direction of the operation button 6 (leftward direction in FIG. 1), and a return spring 8 made of piano wire is passed through the hole 7a. ing. Both ends 8 of return spring 8
a and 8b are bent in opposite directions and are respectively hooked onto a pair of protrusions 9, 9a and 10, 10a protruding from the back surface of the case 1, making it easy to incorporate the spring and making it difficult to remove it. be. Therefore, to assemble the operation button 6 into the case 1, insert the support part 7 of the operation button 6 into the guide groove 1c from the outside of the case 1, insert the return spring 8 into the hole 7a, and then insert the return spring 8 into the hole 7a. Both ends 8a, 8b of are connected to protrusions 9, 9
This can be accomplished by simply hooking it to a, 10, and 10a.

Note that 11 is a recording paper, which is stored in a storage chamber 12 that is integrally formed with the case 1. The recording paper 11 is sent to a recording device (not shown) through the paper feed port 3 of the case 1, and after being recorded, is discharged from the case 1 through the discharge port 14 of the case 1.

Next, the opening/closing operation of the lid will be explained.

When the operating button 6 is slid to the left from the position shown in FIG. 3 against the spring force of the return spring 8, the upwardly inclined surface 6a of the operating button 6 and the downwardly inclined surface 3b of the lid 3 cooperate. The tip of the operation button 6 enters the back side of the lid 3. As a result, as shown in FIG. 4, the attraction of the magnets 4 and 5 is released, and the lid 3 is lifted to a half-open state. At this time, the position holding protrusion 6b of the operation button 6 engages with the position holding groove 3c of the lid 3, and the operation button 6 cannot be moved back even if the pressure is released, so that the lid 3 is in a half-open state. will be retained. In this state, the user holds the lid 3 and removes it to store or take out the recording paper 11. When the lid 3 is removed, the position holding protrusion 6b
The position holding groove member 3c is disengaged, and the operation button 6 is released.
is automatically returned to the right by the return spring 8.

To close the opening 2, engage the locking piece 3a on the left side of the lid 3 with the back side of the left edge of the opening 2, and then the magnet 4 on the lid 3 side will touch the magnet 5 on the case 1 side. The lid 3 is magnetically locked and opened at the opening 2.
will be blocked.

Note that the present invention is not limited to printer cases.

In addition, in the above embodiment, the case 1 is
Although the lid 3 is attracted to the lid 3, one side may be a magnet and the other side may be made of a magnetic material such as iron.

[Effect of idea]

According to the lid opening/closing mechanism according to the present invention described in detail above, the lid can be lifted to a half-open state by sliding the operation button, and this half-open state can be temporarily maintained. The lid can be opened and closed very easily with one hand. In addition, the structure is simple, so it is easy to assemble, the appearance is clean, and product value can be increased.Furthermore, it is less likely to be damaged by external impacts, and it fits easily in packaging boxes. have an effect.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
FIG. 1 is a partially cutaway sectional view thereof, FIG. 2 is a sectional view of a main part taken along the line of FIG. 1, and FIGS. 3 and 4 are enlarged sectional views for explaining the opening/closing operation of the lid. 1... Case, 2... Opening, 3... Lid, 3b
...Downward inclined surface, 3c...Position holding groove, 4,
5...Magnet, 6...Operation button, 6a...Upward inclined surface, 6b...Position holding protrusion, 8...Return spring.

Claims (1)

[Scope of Claim for Utility Model Registration] An opening provided in the case, a lid covering the opening, a magnet provided on one side edge of the opening and the back surface of the lid opposite thereto, and a magnet or magnetic body provided on the other side; an operation button slidably provided on the case so as to face the lid on the same plane; and an upwardly inclined surface formed on the opposite end surface of the operation button. , A downwardly inclined surface formed on the opposite end surface of the lid, a return spring that springs the operation button in the backward direction, and a back surface of one side edge of the lid and an upper surface of the tip of the operation button can be locked to each other. A lid opening/closing mechanism comprising a position holding protrusion and a position holding groove formed in the lid.