JP7647802B2 - Switchgear - Google Patents

Description

The present invention relates to an opening and closing device used in electronic devices such as printers and electronic cash registers.

For example, as described in Patent Document 1, a printer is known that has a printer cover that can be opened and closed to cover the opening of a recording paper storage section provided inside the case body, and this printer cover is provided with support legs that are inserted into the case body through the opening, and a holding shaft provided inside the case body is rotatably attached to an axis hole provided in the support leg.

JP 2016-68551 A

In such printers, when the printer cover is fully open and standing, the printer cover's support legs are supported by the retaining shaft inside the case body, and the end of the printer cover is held in contact with the edge of the opening of the case body. For this reason, with this printer, there is a problem that if the printer cover is forcibly rotated further in the open direction while it is fully open and standing, the printer cover and other parts may be damaged.

An object of the present invention is to provide an opening and closing device that will not be damaged even if it is rotated in the opening direction in a fully open state.

One aspect of the present invention is a cover body including a cover body that closes an opening provided in a case in an openable and closable manner, a first arm portion protruding from a surface of the cover body on the opening side, and a second arm portion extending from an end of the first arm portion toward the cover body side at an acute angle, a rotational holding mechanism that rotatably holds the cover body, and a release mechanism that releases the hold of the cover body by the rotational holding mechanism, wherein the rotational holding mechanism includes a holding shaft provided on one of the second arm portion and the case side, and a shaft hole provided on the other of the second arm portion and the case side and into which the holding shaft is rotatably fitted, and the release mechanism includes a notch portion provided on a part of an outer periphery of the shaft hole to allow the holding shaft to be inserted and removed from the shaft hole. and when the cover body is released from the holding of the cover body by the rotating holding mechanism by the release mechanism, the cover body is held in a first state in which it abuts against its own device in an upright state at two points, a first abutment point which is a point of abutment between the end of the cover body on the second arm portion side and a rising surface of the device, and a second abutment point which is a point of abutment between the edge of the opening and a portion of the first arm portion on the second arm portion side, and opens the opening, and when the cover body is further moved in a direction to open the opening while the cover body is in the first state, the second arm portion climbs over the edge of the opening with the end of the cover body on the second arm portion side abutting the rising surface.

This invention makes it possible to prevent damage even when the door is fully open and rotated in the opening direction.

1 is a perspective view showing an embodiment of an electronic register to which the present invention is applied; FIG. 2 is a side view of the electronic register shown in FIG. 1 . 2 is a cross-sectional view of the electronic register shown in FIG. 1 taken along the line AA. 2 is a cross-sectional view of the electronic register shown in FIG. 1 taken along the line BB. 2 is a perspective view of the electronic cash register shown in FIG. 1 with the printer cover raised to expose the opening of the printer unit. FIG. 6 is a cross-sectional view of the electronic register shown in FIG. 5 taken along the line CC. 6 is an enlarged perspective view of a main portion showing an opening of the printer unit shown in FIG. 5. 6 is an exploded perspective view of a main portion of the printer cover rotation holding mechanism shown in FIG. 5 . FIG. 7 is an enlarged cross-sectional view of the main part of the electronic register shown in FIG. 6, showing a state in which the rotational holding mechanism is released from the rotational holding mechanism by the release mechanism of the printer cover. 2 is a perspective view of the electronic cash register shown in FIG. 1 with a drawer unit of the drawer device pulled out; FIG. FIG. 11 is a side view of the electronic register shown in FIG. 10.

An embodiment in which the present invention is applied to an electronic register will be described below with reference to FIGS.
1 to 3, the electronic cash register includes an equipment case 1. The equipment case 1 includes a lower case 2 and an upper case 3, which are formed into a substantially box-like shape.

As shown in Figures 1 to 3, the lower case 2 comprises a bottom plate 2a and a pair of side plate portions 2b that stand up on both sides of the bottom plate portion 2a, except for the rear end portion, and these are integrally formed from synthetic resin. In this case, legs 2c are provided at each of the four corners of the lower surface of the bottom plate portion 2a. The upper case 3 comprises a case main body portion 4 that is placed on the lower case 2, and a register case portion 5 that protrudes from the case main body portion 4, and these are integrally formed from synthetic resin.

As a result, as shown in Figures 1 to 3, the device case 1 is formed with a drawer case 6, which is the drawer body of the drawer device, by the case body 4 of the lower case 2 and the upper case 3. This drawer case 6 is configured so that a first opening 6a is open on the front side (the right side in Figure 3) and the drawer section 7 is stored inside so that it can be pulled out. In this case, the case body 4 of the upper case 3 is formed in a roughly rectangular box shape that is open on the bottom.

As shown in Figs. 1 to 3, the upper surface of the rear side of the case body 4 is inclined upward toward the rear so that the rear end (left end in Fig. 2) is higher than the front end (right end in Fig. 2). Therefore, the case body 4 is configured so that, with the upper surface of the rear side inclined upward toward the rear, it is placed on the top of the pair of side plate portions 2b of the lower case 2, and the rear end portion is placed on the bottom plate portion 2a.

As shown in Figures 1 to 3, the register case portion 5 of the upper case 3 is formed in a generally rectangular box shape that is open on the bottom, with a front-to-rear length that is approximately 2/3 of the front-to-rear length of the case body portion 4, and a left-to-right length that is perpendicular to the front-to-rear direction that is slightly shorter than the left-to-right length of the case body portion 4.

As a result, the register case part 5 is provided on the rear side of the case body part 4 in a state of inclination upward toward the rear, except for the front and both sides of the case body part 4, as shown in Figures 1 to 3. Therefore, the register case part 5 is provided with the front rising surface 5a and the rear rising surface 5b in a state of inclination toward the front and parallel to each other.

In this case, as shown in Figs. 1 to 3, the rear rising surface 4c of the case body 4 is inclined at the same angle as the rear rising surface 5b of the register case 5. The case body 4 also has a flat upper surface 4a located forward of the register case 5. The upper surface 4a has a tray recess 4b for placing small items such as writing implements, which is provided in front of the keyboard 8, which will be described later.

As shown in Figs. 1 to 3, the register case part 5 has a front rising surface 5a that protrudes above the mounting surface 4a of the case body part 4 and is formed in a stepped shape between the mounting surface 4a of the case body part 4 and the front rising surface 5a of the register case part 5. The upper side of the front rising surface 5a of the register case part 5 protrudes toward the front of the case body part 4 and the lower side is inclined at an inclination angle of, for example, about 15° so that it bites into the register case part 5.

As shown in Figs. 1 to 3, the register case 5 is provided with a keyboard section 8, a panel section 9, and a printer section 10. The keyboard section 8 is used to input and register information such as sales data, and is provided with various keys necessary for settlement, such as a numeric keypad, calculation keys, registration keys, and print keys, and is located on the right front side of the top surface of the register case 5. In this case, a communication section 12 is provided below the keyboard section 8 for wireless communication such as Bluetooth (registered trademark) with a mobile terminal 11, which will be described later.

As shown in FIG. 1, the panel section 9 has a locking section 9a for locking and unlocking the electronic register, and is located behind the keyboard section 8 on the top surface of the register case section 5. As shown in FIGS. 1 to 3, the printer section 10 prints information such as sales data entered on the keyboard section 8 onto recording paper 13 and issues a receipt from the discharge port 14, and is located to the left of the keyboard section 8 and panel section 9 on the register case section 5.

As shown in Figs. 1 to 3, the upper case 3 has a mounting section 15, which is a platform on which the mobile terminal 11 is placed. The mounting section 15 has a first support section 16 that engages one end 11a of the mobile terminal 11, and a second support section 17 that supports the back surface of the other end 11b of the mobile terminal 11.

1 and 4, the first support portion 16 is a generally V-shaped groove with an inclined surface 16a that is in contact with the back surface of one end 11a of the mobile terminal 11, and an abutment surface 16b that is in contact with one end 11a of the mobile terminal 11. The first support portion 16 is formed on the left side of the mounting surface 4a located on the front side of the case main body 4, that is, on the front end side of the mounting surface 4a corresponding to the front of the printer unit 10, and is longer than the length of the mobile terminal 11 in the short direction (width direction) perpendicular to the longitudinal direction.

As shown in Figs. 1 to 4, the second support portion 17 is provided at a higher position than the first support portion 16, and is provided on the front end portion of the printer portion 10 in the register case portion 5 with which the other end portion 11b of the mobile terminal 11 is placed in contact, with the extension line of the inclined surface 16a of the first support portion 16 as a tangent, as compared to the inclined surface 16a of the first support portion 16. As a result, the mobile terminal 11 is placed at an inclination angle θ1 in the range of 20° to 30°, preferably about 25°, so that the second support portion 17 side is higher due to the first support portion 16 and the second support portion 17.

As a result, as shown in Figs. 1 to 4, when the portable terminal 11 is placed at an angle on the placement section 15 by the first support section 16 and the second support section 17, a space 18 is formed between the front rising surface 5a of the register case section 5 corresponding to the printer section 10 and the placement surface 4a of the case main body section 4. In this case, when one end section 11a of the portable terminal 11 is engaged with the first support section 16 and the back surface of the other end section 11b is supported by the second support section 17, the other end section 11b is positioned so that it does not reach the discharge outlet 14 of the printer section 10 and does not block the discharge outlet 14.

As shown in Figs. 1 to 4, the top surface of the printer unit 10 is inclined at an inclination angle θ2 of, for example, about 10°, which is smaller than the inclination angle θ1 of the mobile terminal 11, which is inclined and positioned by the first support portion 16 and the second support portion 17. For this reason, the discharge port 14 of the printer unit 10 is not blocked by the mobile terminal 11, even if the other end portion 11b of the mobile terminal 11 is positioned above the discharge port 14.

In other words, as shown in Figures 1 to 4, the upper surface of the printer unit 10 is inclined at an inclination angle θ2 that is smaller than the inclination angle θ1 of the mobile terminal 11 that is arranged at an incline by the first support portion 16 and the second support portion 17 (θ2 < θ1). Therefore, even if the other end 11b side of the mobile terminal 11 is arranged above the discharge port 14, a gap that expands toward the rear is provided between the upper surface of the printer unit 10 and the back surface of the mobile terminal 11, and the recording paper 13 discharged from the discharge port 14 is sent out through this gap.

As shown in Figures 3 and 4, the printer unit 10 is equipped with a recording paper storage unit 20 that stores recording paper 13 wound in a roll, a printing unit 21 that prints information such as sales data on the recording paper 13 stored in the recording paper storage unit 20, an outlet 14 that discharges the recording paper 13 printed by the printing unit 21, a printer cover 22 that is an openable cover that opens and closes the second opening 20a of the recording paper storage unit 20, and an opening button 23 for opening the printer cover 22.

In this case, as shown in Figures 3 and 4, the printing unit 21 is equipped with a print head 21a and a platen roller 21b, and is configured so that, with the recording paper 13 sandwiched between them, the print head 21a presses the recording paper 13 against the platen roller 21b while printing information such as sales data onto the recording paper 13.

That is, as shown in Figures 3 and 4, the print head 21a is provided on the inside of the front edge of the second opening 20a of the recording paper storage unit 20. The platen roller 21b is provided on the underside of the front end of the cover body 24 (described later) of the printer cover 22 when the second opening 20a of the recording paper storage unit 20 is closed, and is configured to be close to and face the print head 21a.

3 and 4, the discharge port 14 is provided in a position that straddles the front edge of the second opening 20a of the recording paper storage unit 20 and the front end of the cover body 24 (described later) of the printer cover 22 when the second opening 20a of the recording paper storage unit 20 is closed, corresponding to the print head 21a and platen roller 21b of the printing unit 21. In this case, too, the discharge port 14 is provided so as not to be blocked by the other end 11b of the mobile terminal 11 on the second support unit 17 side when the mobile terminal 11 is supported by the first support unit 16 and the second support unit 17.

As shown in Figures 3 to 9, the printer cover 22 includes a cover body 24 that opens and closes the second opening 20a of the recording paper storage section 20 provided in the printer section 10 of the register case section 5, a rotational holding mechanism 25 that rotatably holds the cover body 24, a release mechanism 26 that releases the hold of the cover body 24 by the rotational holding mechanism 25 when the second opening 20a of the recording paper storage section 20 is opened and fully opened in an upright position, and a holding mechanism 27 that holds the cover body 24 in an upright position when the hold of the cover body 24 by the rotational holding mechanism 25 is released by the release mechanism 26.

As shown in Figures 4 to 9, the rotational holding mechanism 25 includes a pair of arms 28 that are provided on the rear side (left side in Figure 4) of the underside of the cover body 24 when the second opening 20a of the recording paper storage section 20 is closed and are inserted into the upper case 3 through the second opening 20a of the recording paper storage section 20, a pair of holding shafts 29 that are provided in the upper case 3 corresponding to the pair of arms 28 inserted into the upper case 3, and a pair of bearings 30 that are provided at the inner ends of the pair of arms 28 and are rotatably held by the pair of holding shafts 29 in the recording paper storage section 20.

As shown in Figures 4 to 9, each of the pair of arms 28 includes a first arm 28a that extends from the underside of the cover body 24 through the second opening 20a of the recording paper storage section 20 into the upper case 3 when the second opening 20a is closed, and a second arm 28b that extends from the inner end of the first arm 28a toward a retaining shaft 29 provided on the inner surface of the rear side inside the upper case 3.

As shown in Figs. 6 to 9, the pair of retaining shafts 29 are provided between each pair of guide ribs 34a of a pair of guide sections 34 (described later) provided on the inner surface of the rear side of the upper case 3 so as to correspond to the rear ends of each of the second arms 28b of the pair of arm sections 28. The pair of bearing sections 30 have respective shaft holes 30a in which the pair of retaining shafts 29 are rotatably arranged, and are provided at the rear ends of each of the second arms 28b corresponding to the pair of retaining shafts 29.

As shown in Figures 6 to 9, when the cover body 24 held by the rotating and holding mechanism 25 is in a fully open state in which the cover body 24 stands upright and opens the second opening 20a of the recording paper storage section 20, the release mechanism 26 is configured to release the hold of the cover body 24 by the rotating and holding mechanism 25 when the cover body 24 rotates in the opening direction due to an external force greater than the holding force of the rotating and holding mechanism 25.

As shown in Figures 6 to 9, when the cover body 24 rotates around the pair of retaining shafts 29 to open the second opening 20a of the recording paper storage section 20 and is in a fully open state, the release mechanism 26 includes a pair of fulcrum abutment portions 31 that abut the edge of the second opening 20a, a pair of cutout portions 32 that allow the pair of retaining shafts 29 to be inserted and removed into the respective shaft holes 30a of the pair of bearing portions 30, and a pair of notches 33 that facilitate elastic deformation so as to push apart the pair of cutout portions 32 and the pair of shaft holes 30a.

In this case, as shown in Figures 6 to 9, the pair of fulcrum abutment parts 31 are provided at locations on the cover body 24 side of each second arm 28b of the pair of arm parts 28. As a result, the release mechanism 26 is configured such that when the cover body 24, which is in a fully open state with the second opening 20a of the recording paper storage section 20 open and standing upright, receives an external force greater than the holding force of the rotation holding mechanism 25 and rotates, the pair of arm parts 28 rotate around the pair of fulcrum abutment parts 31 as fulcrums, and the pair of holding shafts 29 disengage from each shaft hole 30a of the pair of bearing parts 30 through the pair of cutout parts 32.

As shown in Figures 8 and 9, when the release mechanism 26 releases the pair of holding shafts 29 from the shaft holes 30a of the pair of bearings 30 through the pair of notches 32, the holding mechanism 27 is configured to hold the cover body 24 upright at two points: a first abutment point P1 where the lower end 24a of the cover body 24 abuts against the rear rising surface 5b of the register case section 5, and a second abutment point P2 where each first arm 28a of the pair of arm sections 28 abuts from above against the rear edge of the second opening 20a of the recording paper storage section 20.

As shown in Figures 8 and 9, the printer cover 22 has a first release state in which the cover body 24 is in a fully open state in which it stands up and opens the second opening 20a of the recording paper storage section 20, and when the rotational retention by the rotational retention mechanism 25 is released, the cover body 24 is held in an upright state by the retention mechanism 27 and held at two points, and a second release state in which the cover body 24 detaches from the printer section 10 of the register case section 5 when the cover body 24 is rotated further in the opening direction by an external force in this first release state.

In this case, the notch 32 of the release mechanism 26 is formed at a position where the retaining shaft 29 can be removed from the shaft hole 30a of the bearing part 30 when the cover body 24 is rotated in the opening direction from the fully open state where the second opening 20a is opened, as shown in FIG. 8. That is, when the cover body 24 is in the upright state, the notch 32 is provided from the shaft hole 30a of the bearing part 30 in which the retaining shaft 29 is arranged to the end face of the second arm 28b, which is the outer periphery of the bearing part 30. The notch 32 is formed at an angle so that the notch width on the side closer to the shaft hole 30a is slightly smaller than the outer diameter of the retaining shaft 29, and the notch width on the end face side of the second arm 28b, which is the side farther from the shaft hole 30a, is slightly larger than the outer diameter of the retaining shaft 29.

As shown in FIG. 8, the notch 33 is provided in the bearing 30 on the opposite side to the notch 32, that is, on the inner circumference of the shaft hole 30a, to facilitate elastic deformation of the notch 32 and the shaft hole 30a, so as to expand the width of the notch 32 and the inner diameter of the shaft hole 30a when the retaining shaft 29 is inserted through the notch 32.

In other words, as shown in FIG. 8, the bearing portion 30 is configured such that when the retaining shaft 29 is inserted through the notch portion 32 and into the shaft hole 30a, the notch width of the notch portion 32 and the inner diameter of the shaft hole 30a are gradually expanded by the notch portion 33, and when the retaining shaft 29 is fitted into the shaft hole 30a, it elastically returns to its original shape to retain the retaining shaft 29.

As shown in Figures 8 and 9, when the retaining shaft 29 is inserted through the notch 32 from within the shaft hole 30a against the retaining force, the notch width of the notch 32, which is smaller than the outer diameter of the retaining shaft 29, and the inner diameter of the shaft hole 30a are rapidly expanded by the notch 33, and the retaining shaft 29 is configured to be able to insert through the notch 32 and release from the shaft hole 30a.

In this case, as shown in Figures 7 and 8, a pair of guide sections 34 are provided within the recording paper storage section 20 to guide the pair of bearing sections 30 provided on the pair of arm sections 28 to the pair of retaining shafts 29. Each of the pair of guide sections 34 has a pair of guide ribs 34a provided along the vertical direction on the inner surface on the rear side within the upper case 3, and the retaining shaft 29 is provided between the pair of guide ribs 34a.

As a result, as shown in Figures 7 and 8, when the cover body 24 is in an upright position and each of the second arms 28b of the pair of arm sections 28 is inserted into the upper case 3 through the second opening 20a of the recording paper storage section 20, the pair of guide sections 34 are configured to move the pair of bearing sections 30 in the vertical direction while guiding them with the pair of bearing sections 30 positioned between each pair of guide ribs 34a of the pair of guide sections 34.

For this reason, as shown in Figs. 7 and 8, the pair of guide parts 34 are configured so that, with the pair of bearing parts 30 disposed between each pair of guide ribs 34a, the pair of bearing parts 30 are moved in the vertical direction to bring each of the notches 32 of the pair of bearing parts 30 into correspondence with the pair of retaining shafts 29. As a result, the pair of retaining shafts 29 are configured to be inserted into and pass through the pair of notches 32, thereby fitting into each of the shaft holes 30a of the pair of bearing parts 30.

As shown in Figures 1, 4 to 6, the opening button 23 of the printer cover 22 is a push button provided on the left front side of the top surface of the printer unit 10 of the register case 5. When pressed from above, this opening button 23 is configured to press one end 35a of the opening lever 35 provided inside the printer unit 10. In this case, the opening lever 35 is configured to swing up and down around a fulcrum shaft 35c provided in its middle part.

As a result, as shown in Figures 4 to 6, the printer cover 22 is configured such that one end 35a of the opening lever 35 is pushed from above by the opening button 23, causing the opening lever 35 to swing up and down around the fulcrum shaft 35c, and the other end 35b of the opening lever 35 is pushed up, which in turn pushes up the cover body 24, thereby opening the second opening 20a of the recording paper storage section 20.

In this case, as shown in FIG. 6, when the printer cover 22 is in a fully open state in which the cover body 24 opens the second opening 20a of the recording paper storage section 20 and stands up, the cover body 24 stands upright and is positioned behind the rear of the second opening 20a. In other words, the rear rising surface 5b of the register case section 5 located in the printer section 10 has its upper side inclined toward the front. Therefore, the cover body 24 in the upright state is configured to stand upright and inclined slightly toward the rear rather than perpendicular to the device case 1.

As shown in FIG. 9, when the printer cover 22 is in the first release state, the rotational retention by the rotational retention mechanism 25 is released, and the cover body 24 is held and stands up at two points: a first abutment point P1 where the lower end 24a of the cover body 24 abuts against the rear rising surface 5b of the register case part 5 located at the rear of the recording paper storage part 20, and a second abutment point P2 where each first arm 28a of the pair of arm parts 28 abuts from above against the edge of the second opening 20a of the recording paper storage part 20. Therefore, when the printer cover 22 is in the first release state, it can be easily removed from the printer part 10 by simply lifting the cover body 24.

When the cover body 24 is rotated further in the open direction by an external force in the first release state shown in FIG. 9, the cover body 24 rotates around the lower end 24a of the cover body 24 at the first contact point P1 that contacts the rear rising surface 5b of the register case section 5 as a fulcrum, and each second arm 28b of the pair of arm sections 28 overcomes the edge of the second opening 20a of the recording paper storage section 20, thereby entering a second release state in which the cover body 24 is detached to the rear of the printer section 10.

As shown in Figures 10 and 11, the drawer section 7 in the drawer case 6 of the drawer device of the device case 1 is formed so that the front panel 7a located on the drawer side tilts forward from the bottom surface of the drawer case 6 in the drawer direction of the drawer section 7 when closing the first opening 6a of the drawer case 6.

That is, as shown in Figures 10 and 11, the drawer section 7 in the drawer case 6 has a front panel 7a located on the drawer side formed on an inclined surface that is inclined at an inclination angle θ3 of, for example, 15° (see Figure 2) that makes it difficult for the front panel 7a to be seen from the line of sight of the operator when pulling out the drawer section 7. In addition, both sides of the first opening 6a of the drawer case 6 located on the side from which the drawer section 7 is pulled out, i.e., the front ends of the pair of side panels 2b of the lower case 2, are inclined at the same inclination angle θ3 as the front panel 7a of the drawer section 7.

As shown in Figures 10 and 11, a plurality of money storage sections 36 are provided inside the drawer section 7. These multiple money storage sections 36 store bills and coins by denomination, with multiple coin storage sections 36a arranged at the front side of the drawer section 7 and multiple bill storage sections 36b arranged at the rear side of the drawer section 7. In this case, the multiple money storage sections 36 are formed integrally with the drawer section 7.

As a result, the overall thickness of the drawer section 7 is thinner than when the multiple money storage sections 36 are provided separately, as shown in Figures 10 and 11. In addition, the multiple money storage sections 36 corresponding to the front panel 7a of the drawer section 7, i.e., the front inner surfaces of the multiple coin storage sections 36a, are inclined at the same inclination angle θ3 as the front panel 7a of the drawer section 7. Furthermore, each of the multiple banknote storage sections 36b on the rear side of the drawer section 7 has a paper holder 36c that holds down the stored banknotes.

Next, the operation of such an electronic register will be described.
When using this electronic register, first, the locking portion 9a of the panel portion 9 is unlocked. In this state, the mobile terminal 11 is placed on the placement portion 15, which is the placement base of the upper case 3. At this time, one end portion 11a of the mobile terminal 11 is engaged with the first support portion 16 of the placement portion 15, and the other end portion 11b of the mobile terminal 11 is supported by the second support portion 17 on the placement portion 15, which is the register case portion 5.

In this case, when one end 11a of the mobile terminal 11 is engaged with the first support portion 16 of the mounting portion 15, the back surface of the one end 11a of the mobile terminal 11 is placed in contact with the inclined surface 16a of the first support portion 16, and the one end 11a of the mobile terminal 11 abuts against the abutment surface 16b of the first support portion 16. This allows the one end 11a of the mobile terminal 11 to be stably engaged with the first support portion 16 of the mounting portion 15.

The other end 11b of the mobile terminal 11 is supported by the second support portion 17 on the register case portion 5. At this time, the second support portion 17 is provided on the front end portion of the printer portion 10 in the register case portion 5, which is located higher than the first support portion 16, and the other end 11b side on the back surface of the mobile terminal 11 is placed in contact with the second support portion 17 with the extension line in the inclination direction of the inclined surface 16a of the first support portion 16 as a tangent. As a result, the mobile terminal 11 is placed at an inclination angle θ1 of about 25° so that the second support portion 17 side is higher due to the first support portion 16 and the second support portion 17.

Therefore, the mobile terminal 11 is stably placed on the placement unit 15 in a state in which it is tilted by the first support part 16 and the second support part 17 so that the second support part 17 side is higher. As a result, even when the mobile terminal 11 is placed at an angle by the first support part 16 and the second support part 17, it can be operated smoothly, and does not get in the way of the printer part 10 and the keyboard part 8, allowing printing to be performed smoothly by the printer part 10 and input operation to be performed smoothly by the keyboard part 8.

The mobile terminal 11 also performs wireless communication such as Bluetooth (registered trademark) between the electronic cash register and the mobile terminal 11 through a communication unit 12 provided below the keyboard unit 8 of the cash register case unit 5. In this state, a space 18 is formed between the front rising surface 5a of the cash register case unit 5 corresponding to the printer unit 10 and the mounting surface 4a of the case body unit 4.

The space 18 allows the mobile terminal 11 to be placed in a tilted and stable state, and the two sides of the mobile terminal 11 that correspond to the space 18 can be easily grasped, improving the ease of attachment and detachment of the mobile terminal 11. In addition, it is possible to place small items such as writing implements on the placement surface 4a of the case body 4 located in the space 18.

In addition, at this time, the other end 11b of the mobile terminal 11 does not reach the discharge outlet 14 of the printer unit 10, so the mobile terminal 11 is positioned so as not to block the discharge outlet 14 for the recording paper 13 in the printer unit 10. In this case, the other end 11b of the mobile terminal 11 may be positioned above the discharge outlet 14.

In this way, the portable terminal 11 can be easily and satisfactorily placed on the mounting section 15 by simply engaging one end 11a with the first support portion 16 of the mounting section 15 and supporting the other end 11b of the portable terminal 11 on the second support portion 17 on the front end of the printer section 10 in the register case section 5, which is the mounting section 15. The portable terminal 11 can also be easily and simply removed from the mounting section 15 by simply lifting both sides in the short direction perpendicular to the long direction. This makes the portable terminal 11 easy to attach and remove.

Next, a case where sales data is registered while the mobile terminal 11 is placed on the placement section 15 will be described.
In this case, first, sales data and other information is entered by operating the keys on the keyboard 8 of the register case 5. Then, the registration key is operated to register the sales data and other information, and the print key is operated. The printing section 21 of the printer 10 then prints the sales data and other information on the recording paper 13, and the printed recording paper 13 is discharged from the discharge port 14 and issued as a receipt.

That is, when the printing unit 21 prints information such as sales data on the recording paper 13, the recording paper 13 wound in a roll stored in the recording paper storage unit 20 is fed between the print head 21a and the platen roller 21b of the printing unit 21, and in this state, the print head 21a presses the recording paper 13 against the platen roller 21b while printing information such as sales data on the recording paper 13. This printed recording paper 13 is discharged from the discharge port 14 of the printer unit 10.

At this time, the other end 11b of the mobile terminal 11 placed on the placement section 15 has not reached the discharge outlet 14 of the printer section 10, so the discharge outlet 14 of the printer section 10 is not blocked by the mobile terminal 11. Therefore, the printed recording paper 13 is discharged smoothly upward from the discharge outlet 14. In this case, even if the other end 11b of the mobile terminal 11 is positioned above the discharge outlet 14, the recording paper 13 discharged from the discharge outlet 14 is discharged without causing a paper jam.

That is, the inclination angle θ2 of the top surface of the printer unit 10 is inclined at a smaller inclination angle (θ2<θ1) than the inclination angle θ1 of the mobile terminal 11, which is arranged at an incline by the first support portion 16 and the second support portion 17. Therefore, even if the other end 11b side of the mobile terminal 11 is arranged above the discharge port 14, a gap is provided between the top surface of the printer unit 10 and the back surface of the mobile terminal 11, which widens toward the rear, and this gap allows the recording paper 13 discharged from the discharge port 14 to be sent out smoothly without causing a paper jam.

In this way, the recording paper 13 is issued as a receipt, and when the recording paper 13 runs out and needs to be replaced, the opening button 23 of the printer unit 10 is operated to open the printer cover 22. That is, when the opening button 23 is operated, the opening button 23 pushes down one end 35a of the opening lever 35, causing the opening lever 35 to rotate around the fulcrum shaft 35c, and the other end 35b of the opening lever 35 pushes up the cover body 24 of the printer cover 22. This opens the cover body 24, opening the second opening 20a of the recording paper storage unit 20, and new recording paper 13 can be stored in the recording paper storage unit 20 through this opened second opening 20a.

At this time, the pair of bearings 30 provided on the pair of arms 28 of the rotating and holding mechanism 25 in the printer cover 22 are rotatably held by the pair of holding shafts 29 in the upper case 3, so that the pair of arms 28 rotate around the pair of holding shafts 29. As a result, the cover body 24 rotates and stands up. In this state, with the pair of bearings 30 supported by the pair of holding shafts 29, that is, with the pair of holding shafts 29 fitted into the pair of shaft holes 30a, the pair of fulcrum abutment portions 31 of the release mechanism 26 abut against the edge of the second opening 20a of the recording paper storage section 20.

As a result, the cover body 24 stands up stably on the printer unit 10. The cover body 24 also stands up tilted slightly rearward from a perpendicular state to the device case 1 when positioned rearward of the rear of the second opening 20a. This also prevents the cover body 24 from accidentally rotating in the closing direction, and the cover body 24 stands up stably on the printer unit 10. In this state, the rolled recording paper 13 is inserted and positioned in the recording paper storage unit 20 through the second opening 20a. Thereafter, when the cover body 24 is rotated in the closing direction, the second opening 20a of the recording paper storage unit 20 is blocked by the cover body 24.

At this time, the platen roller 21b provided on the cover body 24 approaches and faces the print head 21a of the printer unit 10. Also, at this time, the discharge port 14 for discharging the recording paper 13 is provided corresponding to the print head 21a and platen roller 21b of the print unit 21, straddling the cover body 24 and the printer unit 10.

However, when the cover body 24 is rotated in the opening direction from the fully open state in which the cover body 24 is raised, due to an external force greater than the holding force of the rotation holding mechanism 25, the cover body 24 rotates by the principle of a lever, with the pair of fulcrum abutment parts 31 of the release mechanism 26 abutting the edge of the second opening 20a of the recording paper storage section 20 as the fulcrum, and the pair of holding shafts 29 are released from the pair of shaft holes 30a through the pair of cutout parts 32. That is, the cutout part 32 is formed so that the cutout width on the side closer to the shaft hole 30a is slightly smaller than the outer diameter of the holding shaft 29, and the cutout width on the end face side of the second arm 28b, which is the side farther from the shaft hole 30a, is slightly larger than the outer diameter of the holding shaft 29.

As a result, when the retaining shaft 29 is inserted through the notch 32, the shaft hole 30a and the notch 32 of the bearing portion 30 are elastically deformed and pushed open by the notch 33 provided in the bearing portion 30. In other words, when the retaining shaft 29 is removed from the shaft hole 30a, the notch 33 makes it easier for the retaining shaft 29 to elastically deform so as to push open the shaft hole 30a and the notch 32, and the retaining shaft 29 is removed from the shaft hole 30a through the notch 32. This places the printer cover 22 in the first release state.

In this first release state, the cover body 24 is held in an upright position by the holding mechanism 27. That is, the holding mechanism 27 holds the cover body 24 in an upright position at two points: a first abutment point P1 where the lower end 24a of the cover body 24 abuts against the rear rising surface 5b of the register case section 5, and a second abutment point P2 where each first arm 28a of the pair of arm sections 28 abuts against the rear edge of the second opening 20a of the recording paper storage section 20.

As a result, the printer cover 22 will not be damaged even if the cover body 24 rotates in the open direction due to an external force greater than the holding force of the rotation holding mechanism 25, and the cover body 24 is well held at two points, the first abutment point P1 and the second abutment point P2, by the holding mechanism 27. As a result, the printer cover 22 will not fall off the upper case 3 even if the holding shaft 29 comes out of the shaft hole 30a of the bearing portion 30.

As a result, in this first release state, not only is the printer cover 22 easy to handle, but the printer cover 22 does not get in the way and does not interfere with the operation of the printer unit 10. Also, in this first release state, the printer cover 22 can be easily removed from the printer unit 10 by simply lifting the cover body 24.

In addition, when the cover body 24 receives an external force and rotates further in the opening direction in this first release state, the cover body 24 separates from the printer section 10 of the register case section 5 and enters the second release state. That is, when the cover body 24 receives an external force and rotates further in the opening direction in the first release state, the cover body 24 rotates around the lower end section 24a of the cover body 24 at the first contact point P1, which is in contact with the rear rising surface 5b of the register case section 5, as a fulcrum, and each second arm 28b of the pair of arm sections 28 climbs over the edge of the second opening 20a of the recording paper storage section 20. This places the printer cover 22 in the second release state.

In this second release state, the cover body 24 detaches to the rear of the printer unit 10. Therefore, even if the cover body 24 receives an external force and rotates further in the opening direction in the first release state, the printer cover 22 is not damaged, and the cover body 24 detaches to the rear of the printer unit 10, and the printer cover 22 is removed from the printer unit 10.

When attaching the printer cover 22 thus removed to the printer unit 10, first, with the cover body 24 in an upright position, insert the second arm 28b into the recording paper storage unit 20, and position the pair of bearing parts 30 between each pair of guide ribs 34a in the pair of guide parts 34. In this state, move the pair of bearing parts 30 in the vertical direction while being guided by the pair of guide parts 34, so that each of the notches 32 provided in the pair of bearing parts 30 corresponds to the pair of holding shafts 29, respectively.

In this state, the pair of retaining shafts 29 are inserted into the pair of notches 32 and pushed into the shaft holes 30a of the pair of bearing parts 30. This causes the pair of bearing parts 30 to be held by the pair of retaining shafts 29. Therefore, even if the printer cover 22 is removed, it can be easily attached to the printer unit 10. At this time, the cover body 24 is positioned rearward of the rear of the second opening 20a of the recording paper storage unit 20, and is attached in an upright state to the printer unit 10 with the second opening 20a open.

On the other hand, when the printer unit 10 prints sales data and other information on the recording paper 13 and the printed recording paper 13 is discharged from the discharge port 14 to issue a receipt, the drawer section 7 is pulled out from within the drawer case 6 of the drawer device. At this time, the front panel 7a of the drawer section 7 is formed so that it tilts forward from the bottom surface of the drawer case 6 in the direction in which the drawer section 7 is pulled out when closing the first opening 6a of the drawer case 6.

That is, the front panel 7a of the drawer section 7 is inclined at a predetermined inclination angle θ3 so that its upper side protrudes forward and its lower side retracts, making it difficult to see from the operator's line of sight when pulling out the drawer section 7, which provides excellent security and makes it possible to prevent theft. In this case, both sides of the first opening 6a of the drawer case 6, i.e., the front ends of the pair of side panel portions 2b of the lower case 2, are also inclined at the same inclination angle θ3 as the front panel 7a of the drawer section 7, making them difficult to see from the operator's side, providing even better security and making it possible to prevent theft.

When the drawer section 7 is pulled out from within the drawer case 6, the multiple money storage sections 36 within the drawer section 7 are exposed to the outside, allowing for the transfer of money. In this case, the front inner surface of the coin storage section 36a arranged at the front of the drawer section 7 among the money storage sections 36 is inclined at the same inclination angle θ3 as the front panel 7a of the drawer section 7, so that when coins are removed from the coin storage section 36a, the coins can be easily removed by following the inclination of the inner surface of the coin storage section 36a.

In addition, the bills stored in the bill storage section 36b arranged at the rear of the drawer section 7 are held down by the paper holder 36c, preventing the bills from accidentally scattering. In this case, the money storage section 36 is formed integrally with the drawer section 7, so that the overall thickness of the drawer section 7 can be made thinner than when multiple money storage sections 36 are provided separately from the drawer section 7, thereby making the drawer case 6 and the device case 1 thinner overall.

The device case 1 of this electronic cash register is formed such that the front and rear sides of the drawer case 6, which is formed by the lower case 2 and the case body 4 of the upper case 3, are parallel to each other and inclined forward. This gives the device case 1 an improved appearance and design.

In addition, the rear side of the top surface of the case body 4 of this device case 1 is inclined upward toward the rear, and the register case section 5 is provided on this inclined top surface. This also enhances the appearance and design of the device case 1. In addition, the register case section 5 is formed with the front rising surface 5a and the rear rising surface 5b inclined toward the front side and parallel to each other. This also enhances the appearance and design of the device case 1.

In this case, the length of the register case part 5 in the front-to-rear direction of the device case 1 is short, about 2/3 of the length of the case main body part 4 in the front-to-rear direction, and the register case part 5 is provided on the case main body part 4 except for its front side, so that a flat mounting surface 4a is provided on the case main body part 4 located in front of the register case part 5, and small items such as writing instruments can be easily placed on this mounting surface 4a.

In addition, the top surface of the register case section 5 of this device case 1 is inclined upward toward the rear, just like the top surface of the rear side of the case body section 4, which also improves the appearance and design, and makes it easier to see the various keys of the keyboard section 8 located on the top surface of the register case section 5, improving key operability.

Thus, the printer cover 22, which is the opening and closing cover of this electronic register, includes a cover body 24 that closes the second opening 20a of the recording paper storage section 20 provided in the upper case 3 in an openable and closable manner, a rotational holding mechanism 25 that rotatably holds the cover body 24, and a release mechanism 26 that releases the holding of the cover body 24 by the rotational holding mechanism 25. The rotational holding mechanism 25 includes a holding shaft 29 provided on the cover body 24 side and an axial hole 30a provided on the upper case 3 side into which the holding shaft 29 rotatably fits. The release mechanism 26 includes a notch 32 provided on a part of the outer periphery of the axial hole 30a to allow the holding shaft 29 to be inserted and removed from the axial hole 30a. The notch 32 is formed in a position where the holding shaft 29 can be removed from the axial hole 30a when the cover body 24 is further rotated in the opening direction from the fully open state in which the second opening 20a is opened. This prevents damage to the printer cover 22 even when rotated in the opening direction in the fully open state.

In other words, in the printer cover 22 of this electronic register, when the cover body 24 is rotated further in the opening direction from the fully open state in which the second opening 20a is open, the retaining shaft 29 can be released from the shaft hole 30a via the notch 32 of the release mechanism 26, so that the release mechanism 26 can release the retention of the cover body 24 by the rotation retention mechanism 25, thereby preventing damage to the printer cover 22.

In this case, in the printer cover 22 of this electronic register, the rotating holding mechanism 25 has a holding shaft 29 provided in the upper case 3, and a bearing section 30 having a shaft hole 30a and a notch 32 provided on an arm section 28 inserted from the cover body 24 into the upper case 3. The notch 32 of the release mechanism 26 is formed so that the notch width on the side closer to the shaft hole 30a of the bearing section 30 is smaller than the outer diameter of the holding shaft 29, and the notch width on the side farther from the shaft hole 30a of the bearing section 30 is larger than the outer diameter of the holding shaft 29. This allows the bearing section 30 provided on the arm section 28 to be held on the holding shaft 29 in the upper case 3, thereby reliably and satisfactorily supporting the cover body 24, and allowing the second opening 20a of the recording paper storage section 20 to be opened and closed satisfactorily by rotating the cover body 24 around the holding shaft 29.

In addition, in the printer cover 22 of this electronic register, the release mechanism 26 further includes a fulcrum abutment portion 31 that is provided on the arm portion 28 and abuts against the edge of the second opening 20a of the recording paper storage portion 20 in the fully open state where the second opening 20a is open. Therefore, when the cover body 24 rotates in the opening direction in the fully open state in which it is upright, the cover body 24 can be smoothly rotated by the principle of leverage with the fulcrum abutment portion 31 of the arm portion 28 abutting against the edge of the second opening 20a as the fulcrum.

As a result, in the printer cover 22 of this electronic register, when the cover body 24 is rotated in the open direction in the upright, fully open state, the retaining shaft 29 can be released from the shaft hole 30a of the bearing portion 30 through the cutout portion 32, so that the release mechanism 26 can reliably and satisfactorily release the retention of the cover body 24 by the rotation retention mechanism 25, thereby preventing damage to the printer cover 22 even if the printer cover 22 is rotated in the open direction in the upright, fully open state.

The printer cover 22 of this electronic register is provided with a cover body 24 that can open and close the second opening 20a of the recording paper storage section 20 provided in the upper case 3, a rotational holding mechanism 25 that rotatably holds the cover body 24, a release mechanism 26 that releases the hold of the cover body 24 by the rotational holding mechanism 25 when the cover body 24 is rotated in the open direction in the fully open state that opens the second opening 20a of the upper case 3, and a holding mechanism 27 that holds the cover body 24 in an upright position when the hold of the cover body 24 by the rotational holding mechanism 25 is released by the release mechanism 26. This prevents damage to the printer cover 22 and prevents the printer cover 22 from accidentally falling off the upper case 3.

In other words, in the printer cover 22 of this electronic register, when the cover body 24 is fully open with the second opening 20a of the upper case 3 open and rotates in the open direction, and the release mechanism 26 releases the cover body 24 from the rotational holding mechanism 25, the holding mechanism 27 can hold the cover body 24 in an upright position, so that even if the cover body 24 is released from the rotational holding mechanism 25, the printer cover 22 can be reliably and effectively prevented from accidentally falling off the upper case 3.

In addition, in the printer cover 22 of this electronic register, when the holding of the cover body 24 by the rotating holding mechanism 25 is released by the release mechanism 26, the holding mechanism 27 holds the cover body 24 upright at two points: the first abutment point P1 where the lower end 24a of the cover body 24 abuts against the outer surface of the upper case 3, and the second abutment point P2 where the arm portion 28 abuts against the edge of the second opening 20a. This allows the first abutment point P1 and the second abutment point P2 of the holding mechanism 27 to reliably and satisfactorily hold the cover body 24 in an upright state when the holding of the cover body 24 by the rotating holding mechanism 25 is released.

As a result, the printer cover 22 of this electronic register can reliably and effectively prevent the cover body 24 from accidentally falling off the upper case 3, and because the cover body 24 is held in an upright position by the first abutment point P1 and the second abutment point P2 of the holding mechanism 27, the printer cover 22 can be easily removed from the upper case 3 by simply lifting the cover body 24, making it easy to handle the printer cover 22.

In addition, in the printer cover 22 of this electronic register, the arm portion 28 is provided with a first arm 28a that extends from the inner surface of the cover body 24 with the second opening 20a closed toward the recording paper storage section 20 of the upper case 3 through the second opening 20a, and a second arm 28b that extends from the inner end of the first arm 28a toward the retaining shaft 29 inside the upper case 3. Therefore, even if the retaining shaft 29 is provided on the inner surface of the rear side inside the upper case 3, the first arm 28a and the second arm 28b can reliably and satisfactorily support the cover body 24 in an openable and closable state when the retaining shaft 29 is inserted into the shaft hole 30a of the bearing portion 30 to retain the bearing portion 30.

In this case, in the printer cover 22 of this electronic register, the shaft hole 30a of the bearing part 30 and the notch part 32 are provided at the end of the second arm 28b corresponding to the holding shaft 29, so that even if the holding shaft 29 is provided on the inner surface of the rear side inside the upper case 3, the holding shaft 29 can be inserted into the shaft hole 30a of the bearing part 30 through the notch part 32, so that the bearing part 30 can be easily and satisfactorily held to the holding shaft 29, and the holding shaft 29 can be easily and satisfactorily removed from the shaft hole 30a of the bearing part 30 through the notch part 32.

In addition, in the printer cover 22 of this electronic register, the fulcrum abutment portion 31 is provided at the location of the second arm 28b located on the first arm 28a side, which eliminates the need to provide the fulcrum abutment portion 31 as a separate part, thereby simplifying the structure. In addition, the location where the first arm 28a abuts against the edge of the second opening 20a is the second abutment point P2, which also simplifies the structure, and the second abutment point P2 and the first abutment point P1 can reliably and satisfactorily hold the cover body 24 in an upright position.

In addition, with the printer cover 22 of this electronic register, the cover body 24 in the fully open state, which opens the second opening 20a of the recording paper storage section 20 of the upper case 3 and stands upright, is positioned behind the rear of the second opening 20a, so that the upright cover body 24 does not get in the way.

In addition, in the printer cover 22 of this electronic register, the rear rising surface 5b located at the rear of the upper case 3 is inclined toward the front side of the upper case 3, and the cover body 24 in the fully open upright state stands up at a slight rearward incline from the state perpendicular to the upper case 3, so that the cover body 24 in the fully open upright state can be stood up in a stable state so that it does not inadvertently rotate in the closing direction.

In addition, in the printer cover 22 of this electronic register, a notch 33 is provided in the bearing portion 30 to facilitate elastic deformation of the retaining shaft 29 so as to push the notch 32 and the shaft hole 30a wider when the retaining shaft 29 is inserted through the notch 32. This makes it easier for the retaining shaft 29 to elastically deform so as to push the notch width of the notch 32 and the inner diameter of the shaft hole 30a wider when the retaining shaft 29 is inserted through the notch 32. This allows the retaining shaft 29 to be reliably and satisfactorily removed from the shaft hole 30a of the bearing portion 30, and allows the retaining shaft 29 to be reliably and satisfactorily fitted into the shaft hole 30a of the bearing portion 30.

In addition, the printer cover 22 of this electronic register is provided with a guide section 34 that guides the bearing section 30, which has an axial hole 30a and a notch section 32, and leads it to the retaining shaft 29. This allows the guide section 34 to guide the bearing section 30 so that the notch section 32 of the bearing section 30 corresponds to the retaining shaft 29, so that the retaining shaft 29 can be securely and satisfactorily fitted into the axial hole 30a of the bearing section 30 through the notch section 32.

In this case, the guide section 34 has a pair of guide ribs 34a arranged along the vertical direction on the inner rear surface inside the recording paper storage section 20, and the retaining shaft 29 is arranged between the pair of guide ribs 34a. With the bearing section 30 positioned between the guide ribs 34a of the guide section 34, the pair of bearing sections 30 can be guided and moved in the vertical direction to align the notch portions 32 of the bearing sections 30 with the retaining shaft 29. This allows the retaining shaft 29 to be securely and satisfactorily fitted into the shaft hole 30a of the bearing section 30 through the notch portions 32.

Furthermore, the printer cover 22 of this electronic register includes a cover body 24 that closes the second opening 20a of the recording paper storage section 20 provided in the upper case 3 in an openable and closable manner, a rotational holding mechanism 25 that rotatably holds the cover body 24, and a release mechanism 26 that releases the holding of the cover body 24 by the rotational holding mechanism 25 when the cover body 24 in the fully open state with the second opening 20a open is rotated in the opening direction. The printer cover 22 can be prevented from being damaged and from accidentally falling off the upper case 3 by having a first release state in which the cover body 24 is held in an upright position when the rotational holding by the rotational holding mechanism 25 is released by the release mechanism 26, and a second release state in which the cover body 24 is released from the upper case 3 when the cover body 24 is further rotated in the opening direction in this first release state.

In other words, in the printer cover 22 of this electronic register, in the first release state, the cover body 24 is held upright at two points: a first contact point P1 where the lower end 24a of the cover body 24 contacts the rear rising surface 5b of the upper case 3, and a second contact point P2 where the arm portion 28 provided on the cover body 24 contacts the edge of the second opening 20a. Even if the rotational retention by the rotational retention mechanism 25 is released, the cover body 24 can be reliably held upright by the first contact point P1 and the second contact point P2.

As a result, in the printer cover 22 of this electronic register, when in the first release state, the cover body 24 can be reliably and effectively prevented from accidentally falling off the upper case 3, and since the cover body 24 is held in an upright position by the first abutment point P1 and the second abutment point P2 of the holding mechanism 27, the printer cover 22 can be easily removed from the upper case 3 by simply lifting the cover body 24, making it easy to handle the printer cover 22.

In addition, in the printer cover 22 of this electronic register, in the second release state in which the cover body 24 is further rotated in the open direction from the first release state, the cover body 24 rotates and detaches from the upper case 3 using the lower end portion 24a of the cover body 24 at the first abutment point P1 that abuts against the rear raised surface 5b of the upper case 3 as a fulcrum. This allows the cover body 24 to be detached from the upper case 3 even if the cover body 24 rotates further in the open direction in the first release state, thereby preventing damage to the printer cover 22.

In the above embodiment, the coin storage section 36a is arranged at the front of the drawer section 7 and the bill storage section 36b is arranged at the rear of the multiple money storage sections 36 provided in the drawer case 6 and the drawer case 7. However, the present invention is not limited to this. For example, the bill storage section 36b may be arranged at the front of the drawer section 7 and the coin storage section 36a may be arranged at the rear.

In addition, in the above embodiment, the front panel 7a of the drawer section 7 is integrally formed with the drawer section 7, but the present invention is not limited to this. For example, the front panel 7a may be formed separately and attached to the front end of the drawer section 7.

In the above embodiment, the retaining shaft 29 is provided on the upper case 3 side, and the bearing portion 30 having the shaft hole 30a and the notch portion 32 is provided on the cover body 24 side. However, the present invention is not limited to this. For example, the bearing portion 30 may be provided on the upper case 3 side, and the retaining shaft 29 may be provided on the cover body 24 side.

Furthermore, in the above embodiment, the invention has been described as being applied to the printer cover 22 of an electronic cash register, but this invention does not necessarily have to be applied to the printer cover 22 of an electronic cash register, and can be applied to any electronic device that has an opening and closing cover.

Although one embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and includes the inventions described in the claims and their equivalents.
The invention as set forth in the claims of this application is set forth below.

(Additional Note)
The invention described in claim 1 is an open-close cover comprising a cover body that closes and opens an opening in a case, a rotating holding mechanism that rotatably holds the cover body, and a release mechanism that releases the holding of the cover body by the rotating holding mechanism, wherein the rotating holding mechanism comprises a retaining shaft provided on either the cover body side or the case side, and an axial hole provided on the other of the cover body side or the case side into which the retaining shaft rotatably fits, the release mechanism comprising a notch portion provided on a part of the outer periphery of the axial hole to enable the retaining shaft to be inserted and removed from the axial hole, and the notch portion is formed in a position that allows the retaining shaft to be removed from the axial hole when the cover body is further rotated in the opening direction from the fully open state in which the opening is open.

The invention described in claim 2 is an openable cover described in claim 1, characterized in that the rotating and holding mechanism has the holding shaft provided in the case, and a bearing portion having the shaft hole and the notch portion is provided on an arm portion inserted from the cover body into the case, and the notch portion of the release mechanism is formed so that the notch width on the side of the bearing portion closer to the shaft hole is smaller than the outer diameter of the holding shaft, and the notch width on the side of the bearing portion farther from the shaft hole is larger than the outer diameter of the holding shaft.

The invention described in claim 3 is an open-close cover described in claim 1 or claim 2, characterized in that the release mechanism further includes a fulcrum abutment portion provided on the arm portion and abutting the edge of the opening in a fully open state with the opening open, and when the cover body rotates in the opening direction in a fully open state with the opening open, the cover body rotates around the fulcrum abutment to release the retaining shaft from the shaft hole through the cutout portion.

The invention described in claim 4 is an openable cover that includes a cover body that closes an opening in a case in an openable manner, a rotational holding mechanism that rotatably holds the cover body, a release mechanism that releases the hold of the cover body by the rotational holding mechanism when the cover body is rotated in the opening direction in a fully open state that opens the opening of the case, and a holding mechanism that holds the cover body in an upright position when the hold of the cover body by the rotational holding mechanism is released by the release mechanism.

The invention described in claim 5 is the openable cover described in claim 4, characterized in that the holding mechanism holds the cover body upright at two points: a first contact point where an end portion located on the lower side of the cover body contacts the outer surface of the case, and a second contact point where an arm portion inserted from the cover body into the case contacts the edge of the opening, when the release mechanism releases the hold of the cover body by the rotational holding mechanism.

The invention described in claim 6 is an openable cover according to any one of claims 2 to 5, characterized in that the arm portion includes a first arm that extends from the inner surface of the cover body when the opening is closed through the opening into the case, and a second arm that extends from the first arm toward the retaining shaft inside the case, the shaft hole and the notch are provided at the end of the second arm that corresponds to the retaining shaft, the fulcrum abutment portion is provided at a portion of the second arm located on the first arm side, and the portion where the first arm abuts against the edge of the opening is the second abutment point.

The invention described in claim 7 is an openable cover according to any one of claims 1 to 6, characterized in that in a fully open state in which the opening of the case is open, the cover body stands upright and is positioned behind the rear of the opening.

The invention described in claim 8 is an openable cover according to any one of claims 1 to 6, characterized in that the rising portion located at the rear of the case is inclined toward the front of the case, and the cover body in the fully open state stands at a slight rearward incline relative to the case when perpendicular.

The invention described in claim 9 is an openable cover according to any one of claims 1 to 7, characterized in that another part of the outer periphery of the shaft hole is provided with a notch for facilitating elastic deformation so as to push apart the notch and the shaft hole when the retaining shaft is inserted through the notch.

The invention described in claim 10 is an openable cover according to any one of claims 1 to 9, characterized in that it is provided with a guide portion that guides the bearing portion having the notch portion and the shaft hole to the retaining shaft.

The invention described in claim 11 is an openable cover comprising a cover body that closes an opening provided in a case in an openable and closable manner, a rotational holding mechanism that rotatably holds the cover body, and a release mechanism that releases the hold of the cover body by the rotational holding mechanism when the cover body is rotated in the opening direction in a fully open state that opens the opening of the case, and has a first release state in which the cover body is held in an upright state when the rotational holding by the rotational holding mechanism is released by the release mechanism, and a second release state in which the cover body detaches from the case when the cover body is further rotated in the opening direction in the first release state.

The invention described in claim 12 is the openable cover described in claim 11, characterized in that in the first release state, the cover body is held upright at two points: a first contact point where an end portion located on the lower side of the cover body contacts the outer surface of the case, and a second contact point where an arm portion provided on the cover body contacts the edge of the opening.

The invention described in claim 13 is the openable cover described in claim 11 or claim 12, characterized in that in the second release state, when the cover body is further rotated in the opening direction in the first release state, the cover body rotates and separates from the case, using the end of the cover body at the first contact point that contacts the outer surface of the case as a fulcrum.

The invention described in claim 14 is an electronic device characterized by having an opening and closing cover described in any one of claims 1 to 13.

REFERENCE SIGNS LIST 1 Device case 2 Lower case 3 Upper case 4 Case body 4a Placement surface 5 Register case 5a Front rising surface 5b Rear rising surface 6 Drawer case 6a First opening 7 Drawer section 7a Front panel 10 Printer section 11 Portable terminal 11a One end 11b Other end 12 Communication section 13 Recording paper 14 Discharge outlet 15 Placement section (placement stand)
16 First support portion 16a Inclined surface 16b Contact surface 17 Second support portion 18 Space portion 20 Recording paper storage portion 20a Second opening 21 Printing portion 22 Printer cover 23 Open button 24 Cover body 25 Rotation holding mechanism 26 Release mechanism 27 Holding mechanism 28 Arm portion 28a First arm 28b Second arm 29 Holding shaft 30 Bearing portion 30a Shaft hole 31 Fulcrum contact portion 32 Notch portion 33 Cutout portion 34 Guide portion 34a Guide rib 36 Money storage portion 36a Coin storage portion 36b Banknote storage portion 36c Paper retainer P1 First contact point P2 Second contact point

Claims (3)

a cover body including a cover body that closes an opening provided in a case in an openable and closable manner, a first arm portion that protrudes from a surface of the cover body on the opening side, and a second arm portion that extends from an end of the first arm portion toward the cover body at an acute angle;
a rotation holding mechanism that rotatably holds the cover body;
a release mechanism that releases the holding of the cover body by the rotation holding mechanism,
the rotation holding mechanism includes a holding shaft provided on one of the second arm portion and the case side, and a shaft hole provided on the other of the second arm portion and the case side, into which the holding shaft is rotatably fitted,
the release mechanism includes a notch portion provided on a part of an outer periphery of the shaft hole to allow the retaining shaft to be inserted into and removed from the shaft hole,
When the release mechanism releases the hold of the cover body by the rotation holding mechanism, the cover body is held in a first state in which the cover body abuts against the device at two points, i.e., a first abutment point which is a point of contact between the end of the cover body on the second arm portion side and a rising surface of the device, and a second abutment point which is a point of contact between an edge of the opening and a portion of the first arm portion on the second arm portion side, in an upright state and in which the opening is opened;
when the cover body is in the first state and the cover body is further moved in a direction to open the opening, the second arm portion rides over the edge of the opening while the end portion of the cover body on the second arm portion side is in contact with the rising surface;
An opening and closing device characterized by: When in the first state, the second arm portion is inserted into the opening.
The opening and closing device according to claim 1 . When in the first state, the cover body is inclined with respect to the vertical direction.
The opening and closing device according to claim 1 .

Images