JP2009029092A - Information equipment apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information apparatus equipped with a cover locking mechanism in which catches forming a pair and moving in conjunction with each other are disposed, and in a state where one of the catches is locked to one of locking pins, the other catch is not locked to the other locking pin. <P>SOLUTION: A receipt printer 100 includes an upper cover 13 which is disposed in an apparatus body 11 and is turned in an openable and closable manner, and the cover locking mechanism 21 which locks the upper cover 13 to a closed state with respect to the apparatus body 11. The cover locking mechanism 21 has the catches 33 forming a pair disposed in the upper cover 13 and moving in conjunction with each other and the locking pins 32, 32 forming a pair which are disposed in the apparatus body 11 and to which the catches 33 are respectively locked. The one of the catches 33 is so formed as to have a portion enlarged in contour having a size equivalent to an amount displaced by chattering of the upper cover 13 with respect to the apparatus body 11. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an information equipment device, and more particularly to an information equipment device provided with a cover locking mechanism that locks a cover that is pivotably opened and closed with respect to an apparatus body.

  One example of a recording apparatus (information apparatus apparatus) that uses roll paper as a recording medium is a receipt printer (see, for example, Patent Document 1). In the receipt printer, the roll paper is sandwiched from the front and back by a platen roller and a thermal head in the paper discharge unit, and a predetermined length is fed out. The fed paper is manually or automatically cut by a cutter provided in the main body opening.

Receipt printers increase the commercial value of being easy to load roll paper. A cover is provided on the upper portion of the recording apparatus main body so as to be freely opened and closed. By opening the cover, the roll paper accommodation unit is opened. It is desirable that the roll paper can be loaded only by opening and closing the cover.
On the other hand, the roll paper is fed out by being sandwiched between the platen roller and the thermal head. Therefore, when the input method (drop-in method) is adopted, the platen roller and the thermal head in the paper discharge unit are separated. That is, the thermal head is provided in the recording apparatus main body, and the platen roller is provided in the cover.

  Further, the cover of such a recording apparatus is locked to the apparatus main body during normal use, but the locked state is released by operating a button or lever provided on the upper surface of the apparatus, and the cover is opened. What is comprised is known (for example, refer nonpatent literature 1).

JP 2006-167842 A Product introduction homepage (http://www.grandi.cn/inc/pos58g.asp)

Incidentally, the cover of the above-described receipt printer is locked in a closed state with respect to the recording apparatus main body by cover locking mechanisms provided on the left and right sides in the width direction. 6A is a side view of the right cover locking mechanism as viewed from the outside of the apparatus, and FIG. 6B is a side view of the conventional cover locking mechanism of the left cover locking mechanism as viewed from the outside of the apparatus. It is principal part explanatory drawing.
The cover locking mechanisms 511R and 511L are provided on a cover (not shown) and are provided on a pair of hook-like locking claws 513R and 513L that move in conjunction with each other and on the left and right of the recording apparatus main body. , 513L have a pair of locking pins 515R and 515L. The locking claws 513R and 513L are connected to each other and are moved in conjunction with each other.

  However, in the cover locking mechanisms 511R and 511L in which the left and right locking claws 513R and 513L are interlocked and locked to the locking pins 515R and 515L, the locking claws 513R and 513L are not easily locked simultaneously on the left and right. Therefore, one of the left and right locking claws 513R and 513L (the locking claw 513L in the illustrated example) is not locked due to twisting of the cover with respect to the recording apparatus main body or backlash due to the positional displacement of the cover in the front-rear direction. In the state, the other (the locking claw 513R in the figure) may be locked.

  If the user misunderstands such a one-hanging state as a cover completely closed, and the one-stop hooking claw 513R is detected by the cover open detection switch 519, the receipt printer can be brought online. Although the transport of the recording medium may occur due to the inclination of the provided platen, etc., the receipt printer does not detect an error and considers that printing is normal even though it is not actually printed. There has been a risk that a normal termination will occur with the difference, and as a result, problems such as loss of recorded data may occur.

  The present invention has been made in view of the above situation, and includes a pair of locking claws that move in conjunction with each other, and when one locking claw is not locked, the other locking claw is not locked. An object of the present invention is to provide an information equipment device having a mechanism.

The above-described object according to the present invention is provided in the apparatus main body, and is a cover that is pivotably opened and closed.
A cover locking mechanism that locks the cover in a closed state with respect to the device main body, and an information equipment device comprising:
The cover locking mechanism is
A pair of locking claws provided on one of the cover or the apparatus main body and moving in conjunction with each other;
A pair of locking portions provided on the other side of the cover or the apparatus main body and locking the locking claws respectively;
At least one of the locking claws is formed by an information equipment device that is formed to have a contour enlarged portion corresponding to a backlash displacement amount of the cover with respect to the device main body.

  According to the information device having the above-described configuration, if the locking claw is not moved in the engagement direction by the amount of rattling displacement due to the twist of the cover or the positional deviation in the front-rear direction of the cover, the locking claw is engaged with the locking portion. I can not stop. Thereby, although one locking claw is locked, it is possible to prevent a one-hanging state in which the backlash displacement amount acts and the other locking claw is not locked.

  In the information device apparatus having the above-described configuration, the contour enlarged portion may be formed to have an enlarged dimension capable of canceling the backlash direction displacement amount of the cover and the backlash displacement amount generated by the left and right twists. desirable.

  According to the information device having such a configuration, even when the back-and-forth cover rattle and the back-and-forth twist are generated between the left and right locking claws, one locking claw is engaged. In spite of being stopped, it is possible to prevent a one-hanging state where the backlash displacement amount acts and the other locking claw is not locked.

  Moreover, in the information equipment device having the above-described configuration, it is preferable that only the locking state of one of the locking claws is detected by the cover open detection switch.

  According to the information device apparatus having such a configuration, the one-hanging state is prevented, and both the locking claws are locked at the same time. Therefore, one cover open detection switch that detects the locking state of the one-side locking claw Just opening and closing the cover can be reliably detected.

  In the information apparatus apparatus having the above-described configuration, it is preferable that the cover is a cover that covers a recording medium housing portion of the apparatus main body.

  According to the information equipment apparatus having such a configuration, the cover is prevented from being hooked on the apparatus main body, the medium discharge portion formed between the cover and the apparatus main body is inclined, and the recording medium is inclined and sent. This prevents the occurrence of poor transport.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a preferred embodiment of an information equipment device including a cover locking mechanism according to the invention will be described with reference to the accompanying drawings.
FIG. 1 is a perspective view of a part of an information equipment device provided with a cover locking mechanism according to an embodiment of the present invention, FIG. 2 is a side view of a part of the information equipment device shown in FIG. FIG. 3 is a side view when the release lever of the information device apparatus shown in FIG. 2 is operated.

  As shown in FIGS. 1 and 2, a receipt printer (information device apparatus) 100 includes an apparatus main body 11 and an upper cover (cover) that is provided in the apparatus main body 11 and is pivotable about a rotation shaft 15 so as to be opened and closed. ) 13 and a cover locking mechanism 21 that locks the upper cover 13 with respect to the apparatus main body 11 in a closed state. A paper outlet (medium discharge portion) 16 is formed between the opening front end of the upper cover 13 and the apparatus main body 11, and the paper outlet 16 is opened when the upper cover 13 is opened.

Inside the apparatus main body 11, a roll paper storage portion (recording medium storage portion) 11a into which roll paper (recording medium) is loaded is formed at a position where the upper cover 13 is opened (see FIG. 2).
That is, the upper cover 13 is a cover that covers the upper opening of the roll paper accommodation unit 11a.

  The roll paper accommodated in the roll paper accommodating portion 11a is a thermal head (not shown) provided on the apparatus main body 11 side by closing the upper cover 13 with the feeding end placed at the paper outlet 16. And a platen roller 28 (see FIG. 1) provided on the upper cover 13 side. A cutter (not shown) is disposed at the paper outlet 16, and the cutter is fixed to the frame of the apparatus main body 11.

  As shown in FIGS. 1 and 2, the upper cover 13 includes a cover frame 27 inside thereof, and the left and right rear ends of the cover frame 27 rotate with respect to the apparatus main body 11 via the rotary shaft 15. It is supported freely. At the front end of the cover frame 27, a platen roller 28 is rotatably supported on the inner side in the left-right direction, and a movable frame 26 is supported on the outer side in the left-right direction coaxially with the rotation axis of the platen roller 28. Yes.

  The movable frame 26 is formed over the entire length of the cover frame 27 in the left-right direction, and can swing up and down by being pivotally supported by the cover frame 27. The upper cover 13 is locked and released from the apparatus body 11 by the swinging operation.

  The movable frame 26 is also connected to the cover frame 27 by a tension coil spring (not shown), and is biased toward the apparatus main body 11 (downward) by the tension of the tension coil spring.

Locking claws 33 that can be engaged with locking pins (engaging portions) 32 provided in the apparatus main body 11 are formed on the left and right sides of the movable frame 26 at positions below the pivotally supported portions, respectively. . The locking claw 33 is moved forward by a downward displacement (clockwise in the figure) of the movable frame 26, and is locked to the lower side of the locking pin 32 at the swinging lower limit position of the movable frame 26. Is done.
That is, when the upper cover 13 is closed, the movable frame 26 is displaced to the swing lower limit position, and the upper cover 13 is moved relative to the apparatus main body 11 by the cover locking mechanism 21 including the locking pins 32 and the locking claws 33. And locked in the closed state.

Further, release levers (release operation portions) 25 for releasing the locking of the cover locking mechanism 21 are provided at the left and right rear ends of the movable frame 26, respectively.
When the upper cover 13 is closed and the cover locking mechanism 21 is in a locked state, the release lever 25 protrudes downward as shown in FIGS. 1 and 2. At that time, the lower surface 25a which is an operation surface of the release lever 25 is a substantially horizontal surface. When the lower surface 25a of the release lever 25 is pushed up, the movable frame 26 is turned upward (counterclockwise in the figure) in opposition to the urging force of the tension coil spring, and the locking claw 33 is locked by the locking pin 32. The cover locking mechanism 21 is released from the locked state (see FIG. 3).

  In addition, a recess 31 in which the contact pin 30 provided on the cover frame 27 is disposed inside is formed at a position between the locking claw 33 and the release lever 25 in the movable frame 26.

  As shown in FIG. 3, when the release lever 25 is operated and displaced upward, the contact pin 30 is in contact with the lower portion of the recess 31, and the force to lift the release lever 25 upward is This is transmitted to the cover frame 27 via the contact pin 30. Further, at this time, the upper part of the release lever 25 abuts on the inner side of the upper cover 13, and the force for lifting the release lever 25 upward is directly transmitted to the upper cover 13.

  By the way, the upper cover 13 is generally loose due to torsion of the upper cover 13 with respect to the apparatus main body 11 or displacement of the upper cover 13 in the front-rear direction. It is extremely difficult to completely remove the backlash, and even if it is removed, production with excessive and uneconomical quality is forced.

4 is a side view of the left side locking claw as viewed from the outside of the apparatus, FIG. 5 is a side view of the right side cover locking mechanism as viewed from the outside of the apparatus, and FIG. It is principal part explanatory drawing of the cover latching mechanism which concerns on the invention which showed the side view seen from the outside.
The cover locking mechanism 21 according to the present embodiment includes a right cover locking mechanism 21R shown in FIG. 5A disposed on the right side of the upper cover 13 and a left side of the upper cover 13 illustrated in FIG. b) and a left-side cover locking mechanism 21L.

  The right cover locking mechanism 21R includes a right locking claw 33R and a right locking pin 32R. The left cover locking mechanism 21L includes a left locking claw 33L and a left locking pin 32L. The right locking claw 33R and the left locking claw 33L move in conjunction with each other because the left and right are connected.

  In this cover locking mechanism 21, at least one locking claw (left locking claw 33L in this embodiment) of the right locking claw 33R and the left locking claw 33L is formed on the upper cover 13 as shown in FIG. A contour enlarged portion (shaded portion) 35 corresponding to the backlash displacement amount is formed. In addition, the dashed-two dotted line in FIG. 4 represents the outline of the right side latching claw 33R.

  The contour enlarging portion 35 has a contour enlarging size (in the present embodiment, the same size as δ1 and δ2) for canceling the backlash displacement amount δ1 in the front-rear direction and the backlash displacement amount δ2 generated by left and right twists. Is formed. That is, in the cover locking mechanism 21 that operates in conjunction with the left and right, the left locking claw 33L is provided with a shape in which the locking claw 33 hits the locking pin 32 when the upper cover 13 is open.

  Therefore, even when there is a backlash in the front-rear direction of the cover and a backlash between the right side lock claw 33R and the left side lock claw 33L, the one of the lock claws 513R (see FIG. 6). Despite being locked, it is possible to prevent a one-hanging state where the backlash displacement amount acts and the other locking claw 513L (see FIG. 6) is not locked.

  Furthermore, the cover locking mechanism 21 according to the present embodiment is formed so that only one left side locking claw 33L has the contour enlarged portion 35. Therefore, if the one left side locking claw 33L that is moved by the backlash displacement amount is moved in the engagement direction until it is in the locked state, the other right side locking claw 33R to which the contour enlarged portion 35 is not applied is also provided. It will always be swung to the locked position.

  In addition, since the pair of left side locking claws 33L and the right side locking claws 33R are moved in conjunction with each other, the left side locking claws 33L to which the contour enlarged portion 35 is applied are locked. In addition, the other right side locking claw 33R is not locked. That is, when the left latching claw 33L is in contact with the left latching pin 32L, the right latching claw 33R is not rotated in the latching direction, so that any latching claw 33 is latched to the latching pin 32. And the upper cover 13 is not closed.

  Further, the cover locking mechanism 21 of the present embodiment is configured such that only one locked state of the right locking claw 33R is detected by one cover open detection switch 36. In this cover locking mechanism 21, the one-hanging state is prevented and the left locking claw 33L and the right locking claw 33R are locked simultaneously, so that the locking state of the right locking claw 33R on one side is detected. The opening / closing of the upper cover 13 can be reliably detected with only one cover open detection switch 36.

  According to the above-described receipt printer 100 of the present embodiment, the left enlarged claw 33L in the cover locking mechanism 21 is provided with the contour enlarged portion 35 corresponding to the backlash displacement amount of the upper cover 13, so If the left side locking claw 33L is not moved in the engagement direction by the amount of backlash displacement due to the positional deviation in the front-rear direction of the cover, the right side locking claw 33R and the left side locking claw 33L are not locked to the locking pin 32. Therefore, it is possible to prevent a one-hanging state in which the amount of rattling displacement acts and the other locking claw is not locked even though one locking claw is locked.

  As a result, in the upper cover 13 provided with the right side locking claw 33R and the left side locking claw 33L that move left and right interlockingly, when one side is open, the other side cannot be closed, and both sides are closed. For the first time, the entire upper cover 13 can be fully closed.

And according to the receipt printer 100 provided with the said cover latching mechanism 21, since it will remain open if the upper cover 13 is not completely closed, it can check an open / close state easily.
Further, since the upper cover 13 is a cover that covers the roll paper accommodating portion 11 a of the apparatus main body 11, the upper cover 13 is not hooked on the apparatus main body 11, and is formed between the upper cover 13 and the apparatus main body 11. The sheet outlet 16 is inclined and no conveyance failure occurs such as roll paper cannot be fed.

  Furthermore, when the upper cover 13 is open (when the cover open detection switch 36 does not detect the closing), the recording data is generated by stopping the receipt printer 100 in an error state by preventing the receipt printer 100 from being in an online state. Problems such as disappearance can be prevented.

In the above-described embodiment, the case where the cover locking mechanism 21 of the upper cover 13 that covers the roll paper storage portion 11a is provided in the receipt printer 100 has been described as an example. In addition, the same effect as described above can be obtained even when a cover that is pivotably opened and closed is used in other information equipment (for example, a roll paper printer, a facsimile machine, etc.) provided in the apparatus main body.
Moreover, although the latching claw provided in the cover and the latching part provided in the apparatus main body have been described as the cover latching mechanism, the latching claw may be provided on the cover side and the latching claw provided on the apparatus main body side. Although it is conceivable that the operation of opening and closing the cover and the operation of releasing the cover locking mechanism are desirably performed continuously, it is desirable to provide a locking claw that rotates to the cover side.

It is the perspective view which saw through a part of information equipment device provided with the cover latching mechanism concerning one embodiment of the present invention. It is the side view which saw through a part of information equipment device shown in FIG. FIG. 3 is a side view when a release lever of the information device apparatus shown in FIG. 2 is operated. It is the side view which looked at the left latching claw from the outside of the device. (A) A side view of the right side cover locking mechanism as viewed from the outside of the apparatus, and (b) a main part of the cover locking mechanism according to the invention showing a side view of the left side cover locking mechanism as viewed from the outside of the apparatus. It is explanatory drawing. (A) A side view of the right side cover locking mechanism as viewed from the outside of the apparatus, and (b) a main part description of a conventional cover locking mechanism showing a side view of the left side cover locking mechanism as viewed from the outside of the apparatus. FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Recording device main body, 11a ... Roll paper accommodating part (recording medium accommodating part), 13 ... Upper cover (cover), 21 ... Cover locking mechanism, 32 ... Locking pin (engaging part), 33 ... Locking claw 35 ... Contour enlargement part, 36 ... Cover open detection switch, 100 ... Receipt printer (information equipment device), δ1 ... Backlash fluctuation amount of the cover in the front-rear direction, δ2: Backlash displacement amount caused by left / right twisting

Claims (3)

A cover that is provided in the apparatus main body and is pivotable to be opened and closed;
A cover locking mechanism that locks the cover in a closed state with respect to the device main body, and an information equipment device comprising:
The cover locking mechanism is
A pair of locking claws provided on one of the cover or the apparatus main body and moving in conjunction with each other;
A pair of locking portions provided on the other side of the cover or the apparatus main body and locking the locking claws respectively;
At least one of the locking claws is formed so as to have a contour enlarged portion corresponding to a backlash displacement amount of the cover with respect to the apparatus main body.   The information device apparatus according to claim 1, wherein only the locking state of the one of the locking claws is detected by a cover open detection switch.   The information device apparatus according to claim 1, wherein the cover is a cover that covers a recording medium housing portion of the apparatus main body.

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