JP2011140157A - Structure of printer section in device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To ensure accuracy of a bonding position between a printer and a rolled paper transporting section and detachability of the rolled paper, and to allow a cover to be adequately opened in good appearance without interfering with an another in-vehicle device, an attachment face or the like. <P>SOLUTION: The cover 8 is provided at a front part of a case 2 of a device 1, the printer 4 is placed at an upper part in the case 2 to be inclined such that the front side thereof is higher than the rear side, the rolled paper transporting section 5 is provided on the cover in the closed state to face the front lower side of the printer and to be inclined such that the front side thereof is higher than the rear side, and a rotational center 9 for opening and closing is set at the lower part of the cover in the closed state in a direction of connecting the printer and the rolled paper transporting section. The printer 4 is fixed to a wall part 10 in the case 2 to be inclined such that the rear side thereof is higher than the front side and the rolled paper transporting section 5 is fixed to a wall part 26 of the cover 8 to be inclined such that the rear side thereof is higher than the front side. A distance L from the rotational center 9 to a front face 8a of the cover is set to be equal to or smaller than a distance H from the rotational center to a lower face 8c of the cover. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a printer unit structure of a device in which a cover of a printer unit of a digital tachograph, for example, can be opened and closed without interference with the outside.

  3 to 5 show an embodiment of a printer unit structure of a conventional device.

  This structure is such that the internal roll paper 54 is detachable by opening the cover 53 in the printer unit 52 of the device (tachograph or taximeter) 51 shown in FIG. 3 downward as shown in FIGS. is there.

  In FIG. 3, reference numeral 55 denotes a case made of synthetic resin, 56 denotes a front panel thereof, 57 denotes a display unit for operation information and tolls, 58 denotes an actual vehicle / empty vehicle, a general road / highway, reset, start, An operation button 59 for payment, etc., indicates a roll paper cutter.

  As shown in FIG. 4, the printer 60 and the roll paper feeding unit 61 are disposed close to each other in the upper part of the case 55, the roll paper 54 is disposed at the lower rear of the case 55, and the cover 53 is disposed in front of the lower part of the case 55. The hinge axis (rotation center) 62 of the cover 53 is arranged in front of the lower portion of the roll paper 54, and the cover 53 feeds the roll paper around the hinge shaft 62 as a fulcrum as shown in FIG. Together with the part 61, it pivots forward and downward and opens horizontally. In FIG. 4, the position of the hinge shaft 62 is within a slight angle range from just below the printer 60 (below directly below the printer 60) in order to maintain the joining (fitting) accuracy between the printer 60 and the roll paper feeding unit 61. Set slightly forward).

  As a printer unit structure (not shown) other than the above, Patent Document 1 discloses that a cover is slidable in the lateral direction on the front surface of the printer unit of the taximeter, a roll paper is disposed behind the cover, and the rear of the roll paper. Describes that a print head having a heating element as a printer unit and a platen roller are disposed to face each other, and Patent Document 2 discloses a print head using an ink ribbon as a printer disposed in a POS terminal or the like. It is described that the platen and paper feed roller for the print head are arranged in the main body frame, and the open / close frame is arranged.

JP 2008-246727 A (FIGS. 1 to 3) JP 2004-82721 A (FIG. 4)

  However, in the conventional printer portion structure of the device shown in FIGS. 3 to 5, for example, when the device is inserted into a horizontal opening formed in a vehicle compartment panel in the height direction of the vehicle, the cover 53 is attached. It is necessary to pull out and attach the device 51 to the front of the vehicle compartment panel surface so that it does not interfere with the bottom surface of the opening when the door is opened. There is a concern that the cover 53 may interfere with other in-vehicle devices to be attached. In addition, when there is no space for mounting the device 51 in the opening of the passenger compartment panel, as an alternative, even if the device 51 is mounted directly on the dashboard with double-sided tape or the like, There is a concern that the degree of freedom of mounting is limited due to interference.

  Further, when the arrangement of the cover 53 (position of the rotation center) is easily changed to eliminate these concerns, the joining position accuracy (fitting accuracy) between the printer 60 and the roll paper feeding unit 61, that is, the printing accuracy. There is a concern that this may decrease or the detachability of the roll paper 54 may decrease.

  In view of the above points, the present invention has a good opening position of the cover while ensuring good bonding position accuracy between the printer and the roll paper feed unit and detachability of the roll paper. It is an object of the present invention to provide a printer unit structure of a device that can be satisfactorily performed without interference or the like.

  In order to achieve the above object, the printer part structure of the device according to claim 1 of the present invention is provided with a cover at the front part of the case of the device, and the printer is disposed so as to be inclined upward in the upper part of the case. The roll paper feed section is inclined forward and facing the front lower side of the printer and is provided on the closed cover, and the closed state is provided in the direction connecting the printer and the roll paper feed section. A rotation center for opening and closing is set at the bottom of the cover.

  With the above configuration, the printer and the roll paper feeding unit are positioned in the case where the printer and the roll paper feeding unit are inclined upward in the case with the cover closed, and the rotation center in the direction connecting the printer and the roll paper feeding unit is the printer and the roll paper feeding unit. Is positioned forward compared to the case where the printer is placed horizontally, so that the accuracy of the joining position between the printer and the roll paper feed unit is ensured, and the roll paper can be attached to the front upper part of the printer when the cover is opened. The fully open position of the cover is defined high while ensuring a wide space.

  The printer section structure of the apparatus according to claim 2 is the printer section structure of the apparatus according to claim 1, wherein the printer is fixed to a wall section inclined rearwardly upward in the case, and the roll paper feeding section is the cover. It is characterized in that it is fixed to a wall portion that slopes upward.

  With the above configuration, by fixing the printer to the wall sloped upward and backward in the case by screwing or the like, the printer is inclined forward and the roll paper is fed to the wall sloped backward and upward. By fixing the part by screw tightening or the like, the roll paper feed part is disposed so as to incline forward. Note that the directionality of “the wall portion inclined to the rearward rise of the cover” and “the roll paper feeding portion is inclined to the frontward rise” is in the cover closed state.

  The printer unit structure of the device according to claim 3 is the printer unit structure of the device according to claim 1 or 2, wherein a distance from the rotation center to the front surface of the cover is a distance from the rotation center to a lower surface of the cover. It is characterized by being set equal or smaller.

  With the above configuration, the position of the front surface (front surface) when the cover is opened is defined to be higher than the position of the lower surface when the cover is closed, thereby reliably preventing the front surface of the cover from interfering with the device mounting surface or the like. .

  According to the first aspect of the present invention, the printer and the roll paper feeding unit are inclined forward and upward to secure a space for attaching and detaching the roll paper in front of the printer and rotate in the direction connecting the printer and the roll paper feeding unit. The center of rotation is placed forward of the previous position while ensuring good bonding position accuracy, that is, printing accuracy between the printer and the roll paper feed unit at the center, so that the fully open position of the cover can be defined higher than before. Thus, it is possible to prevent the cover from interfering with the device mounting surface on the vehicle side, other in-vehicle devices, etc., to make the cover open and improve the degree of freedom of the mounting position of the device.

  According to the second aspect of the present invention, the printer and the roll paper feed unit can be easily and accurately defined by arranging the printer and the roll paper feed unit along the inclined wall portions.

  According to the third aspect of the invention, by defining the position of the front surface (front surface) when the cover is opened higher than the position of the lower surface when the cover is closed, interference between the front surface of the cover and the device mounting surface is ensured. Can be prevented.

It is a longitudinal cross-sectional view which shows one Embodiment of the printer part structure of the apparatus which concerns on this invention. FIG. 6 is a longitudinal sectional view showing a state where the cover of the printer unit is opened. It is a front view which shows one form of the conventional apparatus (The external appearance is substantially the same as the apparatus which concerns on this invention). It is AA sectional drawing of FIG. 3 which shows one form of the printer part structure of the conventional apparatus. FIG. 4 is a cross-sectional view corresponding to AA in FIG. 3 showing a state where the cover of the printer unit is also opened.

  1 to 2 show an embodiment of a printer unit structure of a device according to the present invention.

  This structure is in a device (digital tachograph or taximeter) 1 having substantially the same appearance as the conventional device of FIG. 3, and corresponds to FIG. 1 (FIG. 4 which is a cross section taken along the line AA of FIG. 3). As shown in the sectional view, the printer 4 and the roll paper feed unit 5 are disposed in the vicinity of the upper portion of the case 2 near the synthetic resin front panel 3 so as to incline forward (rearward) and roll paper feed unit. A roll paper (recording paper) 6 is disposed on the lower rear side of the paper 5, a case bottom wall 7 is disposed adjacent to the lower side of the roll paper 6, and is closed in front of the roll paper 6 and below the front panel 3. A hinge shaft (rotation center) 9 is arranged at the lower part of the first half in the thickness direction of the cover 8, and the cover 8 and the roll paper feed portion 5 support the hinge shaft 9 as a fulcrum as shown in FIG. When you open it forward and downward, A bottom wall 7 and the cover surface 8a is positioned horizontally on the same plane.

  As shown in FIG. 1, an inclined wall (wall portion) 10 made of metal or the like that is inclined rearward at a steep angle is provided inside the case 2, and the substrate portion 12 of the printer 4 is attached to the front surface of the inclined wall 10 with screws 11. A substantially plate-like print head (thermal head) 13 and a printer main body 14 on the upper side thereof are fixed so as to be inclined upwardly and perpendicularly to the inclined substrate portion 12. The thin plate-like rear end 13a of the print head 13 is engaged and positioned in a guide concave portion 15 provided on the front surface of the substrate portion 12, and the printer main body portion 14 is used for pressing the head between the upper and lower parallel plate portions 14a and 14b ( A coil spring 16 for bending) and a bearing 18 supported by a shaft portion 17 near the substrate portion 12. The printer main body 14 and the print head 13 constitute a printer 4.

  The upper end 12 a of the substrate portion 12 is engaged and positioned with the hook portion 10 a folded back at the upper end of the inclined wall 10. The print head 13 extends in the left-right direction with the width of the roll paper 6. A roll paper guide plate 18 is provided so as to incline forward from the lower end of the substrate portion 12 to the vicinity of the print head 13. The horizontal plate portion 10 b extending into the case 22 at the top of the inclined wall 10 is fastened together with a spacer 35 swaged to the upper wall 19 made of metal or the like of the case 2 with a screw 34 together with the substrate 20.

  A long arc-shaped roll paper guide wall 21 is provided on the lower end side of the roll paper guide plate 18 in the vicinity of the rear of the roll paper 6, and a short arc-shaped roll paper guide wall 22 in the vicinity of the lower front side of the roll paper 6. Is provided. Also, a roll paper guide plate 23 made of synthetic resin on the cover 8 side is arranged facing the front side of the roll paper guide plate 18 with a gap slightly wider than the thickness (paper thickness) of the roll paper 6. The roll paper guide plate 23 is an inclined plate portion (wall portion) 26 that rises rearward from a metal plate wall 25 fixed to the back surface of the cover 8 made of synthetic resin or the like via an integral wall portion 24 having an arc-shaped cross section. It is fixed with screws 27.

  The wall portion 24 having an arcuate cross section follows the vertical wall portion 28 at the left and right ends, and a paper feed roller 29 is rotatably supported on the vertical wall portion 28. For example, a gear (not shown) is fixed to a shaft portion (not shown) of the paper feed roller 29, and the gear is driven in mesh with a gear (not shown) on the motor side in the case 2. The inclined plate portion 26 is integrally connected to the roll paper guide plate 30 that is inclined upward in the orthogonal direction, and a wedge-shaped guide between the upper wall of the front panel 3 and the upper end of the cover 8 is located at the front end of the roll paper guide plate 30. Close to the space 31, the guide space 31 continues to a discharge port 31a having a roll paper cutter (not shown).

  The paper feed roller 29, its shaft, gears, roll paper guide plates 23, 30 and wall 24 constitute a roll paper feed unit 5. The paper feed roller 29 and the print head 13 are accurately joined (opposed) via the roll paper 6a with high positional accuracy. When the cover 8 is closed with the hinge shaft 9 as the center, the print head 13 is brought into contact with the paper feed roller 29 obliquely in a tapered manner, so that the joining position accuracy between the both 13 and 29 is improved. The coil spring 16 presses the print head 13 against the roll paper 29 between the paper feed roller 29 without any gap.

  The roll paper 6 a passes between the upper and lower guide plates 18 and 23 from the upper end of the rear guide wall 21 and is sent between the upper surface of the paper feed roller 29 and the lower surface of the print head 13, and is printed by the print head 13. The paper feed roller 29 feeds the discharge guide 31a along the front inclined guide plate 30.

  As shown in FIG. 1, a horizontal hinge shaft 9 is disposed in front of the front arc-shaped roll paper guide wall 22 at the lower half of the cover 8 and in the front half position near the cover surface (front surface) 8a. The hinge shaft of the conventional example in FIG. 4 is disposed behind the cover, whereas the hinge shaft 9 of the present example is offset forward than the conventional one. In this example, the horizontal distance L from the hinge shaft 9 to the cover front surface 8a and the vertical distance H from the cover lower surface 8c are set to be equal.

  The hinge shaft 9 is disposed on a virtual straight line connecting the print surface (contact surface with the paper feed roller 29) 13b of the print head 13 of the printer 4 and the center of the paper feed roller 29. The horizontal distance L to the cover front surface 8a is preferably set to be equal to or smaller than the vertical distance H to the cover lower surface 8c. When the bottom wall 7 of the case 2 is below the lower surface 8c of the cover 8 when closed, the hinge shaft 9 is within the thickness of the cover 8 (the surface 8a of the cover 8 when opened is the lower surface of the bottom wall 7). It may be provided at the lower part of the cover 8 (in a range that does not protrude downward).

  In any case, on the imaginary straight line connecting the printing surface (contact surface with the paper feed roller 29) 13b of the print head 13 of the printer 4 and the center of the paper feed roller 29 (there is a slight tolerance in the front-rear direction). Since the hinge shaft 9 is disposed on the hinge shaft 9, the position of the paper feed roller 29 with the hinge shaft 9 as a proof (reference) is accurately defined, and the print head 13 and the paper feed roller 29 are misaligned by the hinge shaft 9. It is supported without backlash, and the joining position accuracy between the print head 13 and the paper feed roller 29, that is, the joining position accuracy between the printer 4 and the roll paper feed unit 5 is increased, and printing is performed cleanly and accurately.

  As the hinge shaft 9 is offset forward, the printer 4 and the roll paper feed portion 5 are positioned so as to incline forward so as to rotate backward (counterclockwise) about the hinge shaft 9. ing. Thus, a wide space 32 for attaching and detaching the roll paper is secured between the printer 4 and the upper portion of the front panel 3 when the cover 8 of FIG. 2 is opened. In FIG. 1, the cover 8 has a display section for operating information, charges, etc. in a display window 33 a on the front surface 8 a, and the display section 33 is connected to an output section (not shown) in the case 2 by an electric wire (not shown). ing.

  As shown in FIG. 2, when the cover 8 is opened, the front surface 8 a of the cover 8 is positioned in the same horizontal plane as the bottom wall 7 of the case 2, and the back surface 8 b of the cover 8 is higher than the lower end of the roll paper 6 in the case 2. To position. The paper feed roller 29 on the back side of the cover and the roll paper guide plate 23 on the upper side thereof are positioned higher than the center of the roll paper 6, but the hinge shaft 9 is disposed forward compared to the conventional example of FIG. The cover 8 protrudes forward than before, and the opening 32a between the roll paper guide plate 23 and the front panel 3 is widely defined as in the conventional case, and the detachability of the roll paper 6 into the case 2 is ensured satisfactorily. .

  Further, since the cover 8 does not protrude below the bottom wall 7 of the case 2, the case 2 is inserted into a horizontal opening formed in a vehicle compartment panel (not shown) in the vehicle height direction, for example. When the cover 1 is opened, the case 8 can be attached with good appearance without interfering with the bottom surface of the opening (not shown) when the cover 8 is opened and without protruding the case 2 from the opening. In addition, when there is no space for mounting the case 2 in the opening, the horizontal mounting surface (dashboard surface) when the cover 8 is opened even if the case 2 is fixed directly to the dashboard with double-sided tape or the like as an alternative. ), The degree of freedom in mounting the device 1 is increased.

  The printer unit structure of the device according to the present invention can smoothly cover the cover of the printer unit without interference with the outside while ensuring the printing accuracy of the printer unit that prints operation information of a digital tachograph, taxi fare, etc. Can be used to open and close.

DESCRIPTION OF SYMBOLS 1 Apparatus 2 Case 4 Printer 5 Roll paper feeding part 8 Cover 8a Front surface 8c Lower surface 9 Hinge axis (rotation center)
10 Inclined wall (wall)
26 Inclined plate (wall)
L, H distance

Claims (3)

  A cover is provided at the front part of the case of the device, and the printer is inclined to the front upper part in the upper part of the case, and the roll paper feeding part is inclined to the front upper part to face the front lower side of the printer. A printer unit structure of an apparatus provided on the cover in the closed state, wherein a rotation center for opening and closing is set at a lower portion of the cover in the closed state in a direction connecting the printer and the roll paper feeding unit .   2. The apparatus according to claim 1, wherein the printer is fixed to a wall portion inclined rearwardly in the case, and the roll paper feeding portion is fixed to a wall portion inclined rearwardly of the cover. Printer part structure.   3. A printer unit structure according to claim 1, wherein a distance from the rotation center to the front surface of the cover is set to be equal to or smaller than a distance from the rotation center to the lower surface of the cover. .

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