JP6257452B2 - Printer - Google Patents

Description

  The present invention relates to a printer, for example, a label printer having a function of printing desired information such as characters, symbols, figures or barcodes on a label temporarily attached to a mount, and temporarily attaching the label to the mount. The present invention relates to a label printer that can be switched between a normal issuance state in which printing is performed as it is and a peeling issuance state in which a label is peeled off from a mount.

  The label printer is, for example, a plurality of labels temporarily attached to a long mount constituting the label continuous body in the course of feeding and conveying a continuous roll of roll (continuous paper) into a sheet. Each of the printers prints desired information (see, for example, Patent Documents 1 to 5).

  This type of label printer includes a dual-purpose label printer that can switch between a normal issue state and a peel issue state. The normal issue is a method in which the label is temporarily attached to the mount, and the release issue is a method in which the label is released from the mount. In the case of normal issuance, the mount with the required number of labels affixed can be created by cutting, and the label can be peeled off from the mount in the field, so the object to be labeled has moved away from the printer Suitable when in place. On the other hand, in the case of peeling issuance, since the labels are discharged one by one from the mount, it is suitable when the object to which the label is attached is near the operator. In the case of a dual-use type label printer, one unit can handle two situations, and is convenient and economical.

Japanese Patent No. 2537904 Japanese Patent No. 2585769 JP-A-11-147341 JP 2000-1118060 A JP 2010-222114 A

  However, in the dual-purpose label printer, there are cases where the operation of switching between the normal issue state and the peeling issue state is troublesome. In particular, in the case of a small-sized label printer such as a portable label printer, since each component is small, it may be difficult to handle at the time of switching work. Therefore, in the dual-use type label printer, there is a problem of how to easily perform the switching operation between the normal issue and the peeling issue.

  The present invention has been made from the above-described technical background, and an object thereof is to provide a technique capable of easily performing a switching operation between normal issue and release issue.

In order to solve the above problems, a printer of the present invention according to claim 1 is a printer that performs printing on a printing medium composed of a label temporarily attached to a mount, and can be opened and closed to the casing. and supported Ru cover, the provided al is to cover, to peel a platen roller for conveying the pre-Symbol printing medium, the opening and closing cover set vignetting, the label from the backing sheet at the time of peeling issuance of the printing medium peeling a mechanism, disposed in the housing, to support the closure during the closing cover of the open-close cover, the cover support mechanism is paired directed placed on the platen roller, provided in the cover support mechanism, before and a print head for performing printing on a serial print medium, wherein the release mechanism is provided in the extending direction of the platen roller of the cover, the at exfoliation issuance of the printing medium Puratenro Has a nip roller disposed in proximity to La, the platen roller, when the switch in the closed state the cover from the open state is moved to the nip roller direction of the release mechanism, open the cover from the closed state The printer is characterized by moving in a direction away from the nip roller of the peeling mechanism when switching to the printer.

According to a second aspect of the present invention, in the printer according to the first aspect, the peeling mechanism is capable of integrally moving the platen roller and a peeling bar disposed in proximity to the platen roller. A platen unit having a support plate that supports the platen unit, a platen unit support member that is provided at the one end of the open / close cover and supports the platen unit in a movable state, and is supported by the platen unit support member; And a nip roller disposed in proximity to the platen roller when the print medium is peeled and issued .

According to a third aspect of the present invention, in the printer according to the second aspect , the platen unit support member is provided with an opening for movably supporting the platen unit. .

According to the present invention, it is possible to easily switch between the normal issue mode and the peeling issue mode.

According to the present invention, the open / close cover can be reliably held at the peeling issue position.

According to the present invention, by providing a plurality of openings that regulate the position of the platen unit, the opening / closing cover can be reliably held at the normal issue position and the peeling issue position.

It is a perspective view which shows the external appearance of a label printer. It is the schematic which shows the structure of the principal part of a label printer. It is a side view which shows the state which opened the opening / closing cover of the label printer. It is a perspective view of the label continuum used with a label printer. It is a whole perspective view which shows the opening / closing cover of a label printer. It is a side view of the front-end | tip part of an opening / closing cover. It is a perspective view of the front-end | tip part of the opening / closing cover which removed the discharge guide and the side cover. It is a perspective view of the platen unit which comprises a part of peeling unit. It is the schematic which shows the structure of the principal part of a label printer at the time of a normal issue mode setting start. (A), (b) is the perspective view of the head bracket seen from the mutually opposite direction. It is a side view which shows the state before engagement of the front-end | tip part of an opening-and-closing cover and a head bracket. It is a side view which shows the engagement state of the front-end | tip part of an opening-and-closing cover and a head bracket. It is a side view which shows the engagement state of the front-end | tip part of an opening-and-closing cover and a head bracket. It is a perspective view of the front-end | tip part of an opening / closing cover. It is the schematic which shows the structure of the principal part of a label printer at the time of normal issuing mode setting. It is a side view which shows the engagement state of the front-end | tip part of an opening-and-closing cover and a head bracket. It is the schematic which shows the structure of the principal part of the label printer at the time of peeling issue mode setting start. It is the schematic which shows the structure of the principal part of the label printer at the time of peeling issue mode setting. It is an enlarged view of the printing part at the time of peeling issuance.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Note that components having the same function are denoted by the same reference symbols throughout the drawings for describing the embodiment, and the repetitive description thereof will be omitted.

  First, a schematic configuration of the label printer according to the present embodiment will be described with reference to FIGS. FIG. 1 is a perspective view showing an appearance of a label printer according to the present embodiment, FIG. 2 is a schematic view showing a configuration of main parts of the label printer, and FIG. 3 shows a state in which an opening / closing cover of the label printer is opened. FIG.

  A label printer 1 according to the present embodiment includes a main body case (housing) 2 as shown in FIG. 1, an opening / closing cover 3, a peeling unit (peeling mechanism) 4 incorporated in a part of the opening / closing cover 3, A front cover 5 attached to the upper part of the main body case 2 is provided. The label printer 1 has a simple operation of a normal issue mode in which a label 26 is issued without being peeled off from a mount 25 of a label continuum P, which will be described later, and a peeling issue mode in which the labels 26 are released one by one from the mount 25. It has a configuration that can be switched with.

  As shown in FIG. 2, the opening / closing cover 3 of the label printer 1 has a rear end portion (right end portion in the figure) pivotally supported by the main body case 2 by a hinge mechanism, and in a direction away from and approaching the main body case 2. It is designed to rotate. The open / close cover 3 is urged in a direction away from the main body case 2 by the elasticity of the torsion spring 6 attached to the rear end thereof.

  A peeling unit 4 is incorporated at the tip of the opening / closing cover 3. FIG. 2 schematically shows the frame 30 and the nip roller 37 among the members constituting the peeling unit 4. The specific configuration of the peeling unit 4 will be described in detail later.

  The latter half of the inside of the main body case 2 is a paper storage portion in which the label continuum (print medium) P is stored. FIG. 4 is a perspective view of a label continuum P used in the label printer 1 of the present embodiment. The label continuum P has a long mount 25 and a large number of labels 26 temporarily attached to the surface (label affixing surface) at a predetermined interval, and the labels are wound in a roll shape. The printer 1 is detachably accommodated in a paper accommodating portion of the printer 1. Further, position detection marks 27 for detecting the position of the label 26 are formed on the back surface of the mount 25 at a predetermined interval. Although illustration is omitted, the label application surface of the mount 25 is coated with a release agent such as silicone so that the label 26 can be easily peeled off. Further, the surface (printing surface) of the label 26 is coated with a thermosensitive coloring layer that develops color when it reaches a predetermined temperature range.

  A region adjacent to the paper storage unit in the main body case 2 of the label printer 1 is a printing unit. The printing unit is a functional unit that performs printing on the label continuum P fed out from the paper storage unit, and includes a head bracket (opening / closing cover support mechanism) 11, a thermal head (printing head) 12, and a coil spring (biasing) shown in FIG. Member) 13, a platen roller 32, and the like. Of these members constituting the printing unit, the head bracket 11, the thermal head 12, and the coil spring 13 are attached to the main body case 2. On the other hand, the platen roller 32 is attached to the tip of the opening / closing cover 3.

  The head bracket 11 attached to the main body case 2 is a member that maintains the open / close cover 3 in a closed state (the state shown in FIGS. 1 and 2), and is always close to the open / close cover 3 by the elasticity of the coil spring 13 (see FIG. 2 in the right direction). The head bracket 11 is disposed at a position facing the platen roller 32 attached to the opening / closing cover 3 when the opening / closing cover 3 is in a closed state. A specific configuration of the head bracket 11 will be described in detail later.

  The thermal head 12 is means for printing information such as characters, symbols, figures, and barcodes on the label continuum P. The thermal head 12 is mounted on the head bracket 11 while being mounted on a circuit board 14 that transmits a print signal to the thermal head 12. It is attached. The thermal head 12 is disposed so that its printing surface faces the platen roller 32 when the open / close cover 3 is closed. When the label printer 1 performs printing, in both the normal issue mode and the peel issue mode, the label continuum P that is fed out from the paper storage unit is between the print surface of the thermal head 12 and the platen roller 32. It is conveyed in a state of being sandwiched between the two. Although not shown, a plurality of heating resistors (heating elements) that generate heat when energized are provided on the printing surface of the thermal head 12.

  As shown in FIGS. 1 and 3, the front cover 5 is fixed to the main body case 2 so as to cover the upper portion of the main body case 2. Further, the front cover 5 includes an opening 5a for accommodating the opening / closing cover 3 and the peeling unit 4 in the main body case 2, and an operation portion is provided on the front side of the opening 5a (the front side of the label printer 1). A panel 15 and a cover open button 20 are attached.

  As shown in FIG. 1, the operation panel 15 has a display unit 16 for displaying operation commands and various messages of the label printer 1, operation buttons 17 and 18 for operating the label printer 1, and power on / off of the label printer 1. A power button 19 to be turned off is provided.

  As shown in FIG. 2, the lower end of the cover open button 20 is in contact with the head bracket 11. When the operator presses the cover open button 20 downward with a finger, the lower end portion applies a downward force to the head bracket 11, and the closed state of the open / close cover 3 is released by a mechanism described later. The cover open button 20 is always urged upward by the elasticity of a spring (not shown).

  A stepping motor 21 for driving the platen roller 32 of the printing unit is attached below the cover open button 20. The stepping motor 21 is configured such that when the opening / closing cover 3 is changed from an open state to a closed state, that is, when the opening / closing cover 3 is accommodated in the main body case 2, (Platen roller shaft) is engaged.

  The gap between the front end portion of the opening / closing cover 3 and the front cover 5 shown in FIG. 2 is an issuing port 8 through which the label continuous body P printed by the printing unit at the time of normal issuing is discharged. A cutter 9 for manually cutting the mount 25 (see FIG. 4) of the label continuum P discharged from the issue port 8 is attached to a part of the issue port 8. On the other hand, at the time of peeling issuance, the label 26 (see FIG. 4) peeled off from the mount 25 by the peeling unit 4 is discharged from the issuing port 8, and the unnecessary mount 25 is discharged from the rear of the peeling unit 4.

  In the main body case 2, a transmission type sensor composed of a light emitting element 10 a and a light receiving element 10 b is attached to the conveyance path of the label continuum P that is conveyed from the paper storage unit to the printing unit. The transmissive sensor irradiates the light from the light emitting element 10a to the gap between the light emitting element 10a and the light receiving element 10b (conveying path of the label continuum P), and receives the light transmitted through the label continuum P passing through the conveying path as the light receiving element. This is a sensor that detects the label position of the label continuum P by detecting at 10b. Although not shown, a reflective sensor is attached in the vicinity of the transmissive sensor. The reflective sensor is used, for example, to detect whether or not the label continuum P passes through the conveyance path.

  In the main body case 2, a control unit that controls printing timing and the like based on information detected by the above-described sensor is provided below the operation panel 15, but illustration thereof is omitted. When printing is performed, the heating resistor of the thermal head 12 selectively generates heat in accordance with the print signal transmitted from the control unit to the thermal head 12 of the printing unit, and the label 26 of the label continuum P shown in FIG. Is printed.

  A battery case 22 is provided below the main body case 2 shown in FIG. Inside the battery case 22, a battery 23 made of a lithium ion secondary battery or the like as a drive power source for the label printer 1 is detachably accommodated. As shown in FIGS. 1 and 3, a battery cover 22 a that covers the battery insertion port of the battery case 22 is attached to one side surface of the main body case 2.

  Next, the configuration of the peeling unit 4 provided at the tip of the opening / closing cover 3 will be described with reference to FIGS.

  5 is an overall perspective view of the opening / closing cover 3, FIG. 6 is a side view of the distal end portion of the opening / closing cover 3, FIG. 7 is a perspective view of the distal end portion of the opening / closing cover 3 with the discharge guide and side cover removed. FIG. 3 is a perspective view of a platen unit that constitutes a part of the peeling unit.

  A pair of frames (platen unit support members) 30 and 30 arranged at a predetermined interval, and a platen unit 31 and a nip roller 37 arranged between them are attached to the front end of the opening / closing cover 3.

  As shown in FIG. 8, the platen unit 31 is obtained by supporting a platen roller 32 and a peeling bar 33 disposed in the vicinity thereof with a pair of support plates 34 and 34. The platen roller 32, which is a conveying means for the label continuum P, has a platen roller shaft 35 and a platen roller bearing 35a at both ends inserted into the support plates 34, 34, and is capable of rotating in the forward and reverse directions. 34 is attached.

  The peeling bar 33 is a member that mechanically peels off the printed label 26 from the mount 25 of the label continuum P shown in FIG. 4 when printing is performed in the peeling issue mode. 34 is disposed in the vicinity of the platen roller 32 in a state of being inserted through the platen roller 34.

  A gear 36 is attached to one end of the platen roller shaft 35. The gear 36 is mechanically connected to the stepping motor 21 (see FIG. 2) of the main body case 2 via a gear and a timing belt (not shown) when the opening / closing cover 3 is closed, and thereby the stepping motor 21 The rotation is transmitted to the platen roller shaft 35.

  A columnar engagement protrusion 34 a that protrudes in the horizontal direction is provided at the upper end of the support plate 34. On the other hand, the frame 30 has a long groove (first opening) 30a through which the engagement protrusion 34a is inserted, and a long hole (second opening) 30b through which the platen roller shaft 35 and the platen roller bearing 35a are inserted. Is provided. That is, the platen unit 31 is formed along the long hole by the engagement protrusion 34a of the support plate 34 being inserted into the long groove 30a and the end portions of the platen roller shaft 35 and the platen roller bearing 35a being inserted into the long hole 30b. Are supported by a pair of support plates 34 in a movable state (movable up and down).

  Further, the frame 30 is provided with a notch 30c with which the end of the peeling bar 33 is engaged. When the platen unit 31 moves up and down with respect to the frame 30, the peeling is performed along the notch 30c. The bar 33 moves up and down. That is, the notch 30c of the frame 30 functions as a guide when the platen unit 31 moves up and down together with the long groove 30a and the long hole 30b.

  Furthermore, the frame 30 is provided with a columnar engagement protrusion 30d protruding in the horizontal direction. As will be described later, the engagement protrusion 30d is used to fix the opening / closing cover 3 to the main body case 2 when printing on a label.

  A nip roller 37 is attached obliquely above the platen unit 31 along the extending direction of the platen roller 32. The nip roller 37 is a member that peels off the printed label 26 from the mount 25 of the label continuum P in cooperation with the peeling bar 33 when printing is performed in the peeling issue mode.

  As shown in FIGS. 5 and 7, the nip roller 37 is attached to the frame 30 so as to be rotatable in the forward and reverse directions by inserting both ends of the nip roller shaft 38 into the frame 30. Further, one end side of the torsion spring 40 is fixed to both ends of the nip roller shaft 38 inserted through the frame 30, and the nip roller 37 is biased in the direction approaching the platen roller 32 by the elasticity of the torsion spring 40. Has been. That is, as will be described later, when printing is performed in the peeling issue mode, the nip roller 37 contacts the platen roller 32 through the mount 25 of the label continuum P, but the torsion spring 40 at this time This is a member for reliably contacting the platen roller 32.

  The torsion spring 40 is attached to the frame 30 by screws 41. The torsion spring 40 is covered with a side cover 42 so that an operator does not touch or remove it by mistake. The side cover 42 is attached to the frame 30 with screws 41 as with the torsion spring 40.

  The side cover 42 attached to each of the pair of frames 30 and 30 is a member that protects the torsion spring 40, and a U-shaped leaf spring 42a is integrally formed in a part thereof. As shown in FIG. 6, the leaf spring 42 a of the side cover 42 is in contact with the engagement protrusion 34 a of the support plate 34 inserted through the long groove 30 a of the frame 30. Thereby, since the engaging protrusion 34a is urged | biased in the width direction of the long groove 30a, rocking | fluctuation of the engaging protrusion 34a is prevented and it can move up and down smoothly.

  A discharge guide 43 is provided above the nip roller 37. The discharge guide 43 is a guide member for sending the mount 25 of the label continuum P that has passed between the nip roller 37 and the platen roller 32 to the rear of the opening / closing cover 3 when performing printing in the peeling issue mode. 44 is attached to the frame 30.

  The upper surface of the discharge guide 43 is a flat surface. As will be described later, when printing is performed, the operator presses down the upper surface of the discharge guide 43 with a finger to lower the frame 30 (the platen unit 31 and the nip roller 37).

  The platen unit 31 moves up and down with respect to the frame 30 by its own weight. Therefore, for example, immediately after the label printer 1 opens the opening / closing cover 3 in the horizontal position with the opening 5a of the front cover 5 facing upward, the platen unit 31 is positioned at the bottom of the frame 30 (see FIG. 3). ). At this time, the engagement protrusion 34 a of the support plate 34 is located at the lowermost part of the long groove 30 a of the frame 30, and the platen roller shaft 35 and the platen roller bearing 35 a are located at the lowermost part of the long hole 30 b of the frame 30. .

  Next, the operation of the peeling unit 4 in the normal issue mode and the peel issue mode of the label printer 1 of the present embodiment will be described.

  First, when printing is performed in the normal issue mode, as shown in FIG. 9, the operator manually pulls out the front end portion of the label continuous body P loaded in the paper storage portion of the main body case 2 and issues the front cover 5. Expose from mouth 8.

  Next, in this state, the operator presses the front end portion of the opening / closing cover 3 against the main body case 2 side to close the opening / closing cover 3. The operation of the front end portion of the opening / closing cover 3 and the head bracket 11 of the main body case 2 will be described with reference to FIGS. FIG. 10A and FIG. 10B are perspective views of the head bracket 11 viewed from opposite directions. FIG. 11 is a side view showing a state before the front end of the opening / closing cover and the head bracket are engaged.

  As shown in FIG. 10, the head bracket 11 has a pair of side walls bent in the direction of the distal end portion of the opening / closing cover 3, and a pair of engagements protruding in the direction of the distal end portion of the opening / closing cover 3 on each side wall. Claws 11a and 11b are provided. In each side wall, between the pair of engagement claws 11a and 11b, a substantially semicircular engagement groove having a diameter slightly larger than the diameter of the end of the platen roller shaft 35 attached to the opening / closing cover 3. 11c is provided.

  In the vicinity of the lower end portion of each side wall of the head bracket 11, a round hole 11d through which a rotation shaft (not shown) attached to the main body case 2 is inserted is provided. The head bracket 11 is attached to the main body case 2 so as to be rotatable about a rotation shaft inserted through the round holes 11d.

  At the center upper end of the head bracket 11, a turning lever 11e bent to the back side is provided. The cover open button 20 attached to the front cover 5 shown in FIGS. 1 to 3 is in contact with the upper surface of the rotating lever 11e at its lower end. Therefore, when the operator pushes the cover open button 20 downward with a finger, a downward force is applied to the rotation lever 11e, and the head bracket 11 rotates about the round hole 11d. When the operator removes his / her finger from the cover open button 20, the head bracket 11 rotates in the reverse direction due to the elasticity of the coil spring 13 and returns to its original position.

  When the front end portion of the opening / closing cover 3 shown in FIG. 9 is accommodated in the main body case 2 through the opening 5a of the front cover 5, as shown in FIG. 11, the platen roller bearing inserted through the elongated hole 30b of the frame 30. The end of 35a contacts the upper end of the engaging claw 11a of the head bracket 11. At this time, when the operator pushes the front end of the opening / closing cover 3 (the discharge guide 43 of the frame 30) downward with a finger, a downward force is applied to the engaging claw 11a of the head bracket 11, and the head bracket 11 is moved to the round hole 11d. Is rotated in the direction indicated by the arrow in FIG.

  Subsequently, as shown in FIG. 12, when the operator further depresses the tip of the opening / closing cover 3 (the discharge guide 43 of the frame 30), the platen roller shaft 35 and the platen roller inserted through the long hole 30 b of the frame 30. The bearing 35a enters the engaging groove 11c of the head bracket 11, and the platen unit 31 moves toward the nip roller 37 along the long groove 30a and the long hole 30b.

  Accordingly, the platen unit 31 is disposed at the highest position with respect to the frame 30, and the nip roller 37 is disposed at a position close to the platen roller 32 as shown in FIGS. 13 and 14.

  In this way, when the platen roller shaft 35 and the platen roller bearing 35a are fitted in the engagement grooves 11c of the head bracket 11 and the nip roller 37 is disposed at a position close to the platen roller 32, as shown in FIG. The label continuum P fed out from the paper storage unit is sandwiched between the thermal head 12 of the printing unit and the platen roller 32, and the label printer 1 is set to the normal issue mode. Thereafter, when the operator turns on the power button 19 of the operation panel 15 provided on the front cover 5 shown in FIG. 1 and inputs a predetermined operation command, printing in the normal issue mode is started.

  Next, a method for performing printing by switching from the normal issue mode to the peeling issue mode will be described.

  In this case, first, when the operator depresses the cover open button 20 of the front cover 5 and rotates the head bracket 11 in the direction indicated by the arrow in FIG. 16 (counterclockwise direction), the long hole 30b of the frame 30 is inserted. The inserted platen roller shaft 35 and platen roller bearing 35a are disengaged from the engaging groove 11c of the head bracket 11. Thereby, the opening / closing cover 3 and the frame 30 attached to the opening / closing cover 3 move in a direction away from the main body case 2 by the elasticity of the torsion spring 6. On the other hand, the platen unit 31 moves along the long groove 30a and the long hole 30b in the direction away from the nip roller 37 (the lower end direction of the long groove 30a and the long hole 30b) due to its own weight.

  Next, as shown in FIG. 17, the operator manually pulls out the leading end portion of the label continuum P and inserts it between the platen roller 32 and the nip roller 37 attached to the leading end portion of the opening / closing cover 3.

  Next, in this state, the operator presses the distal end portion of the opening / closing cover 3 against the main body case 2 side to close the opening / closing cover 3, and the platen roller shaft 35 according to the procedure described with reference to FIGS. 11 to 14. The platen roller bearing 35 a is fitted into the engagement groove 11 c of the head bracket 11, and the nip roller 37 is disposed at a position close to the platen roller 32.

  Thereby, as shown in FIG. 18, the label printer 1 is set to the peeling issue mode. Thereafter, when the operator turns on the power button 19 of the operation panel 15 provided on the front cover 5 shown in FIG. 1 and inputs a predetermined operation command, printing in the peeling issue mode is started.

  As described above, the operations of the opening / closing cover 3, the platen unit 31, and the head bracket 11 when the opening / closing cover 3 is switched from the open state to the closed state are the same in both the normal issue mode and the peeling issue mode. When the issue mode is set, as shown in FIG. 9, the tip of the label continuum P is exposed from the issue port 8 of the front cover 5 in advance, whereas when the release issue mode is set, as shown in FIG. The difference is that the leading end of the continuous label P is inserted between the platen roller 32 and the nip roller 37 in advance.

  As shown in FIG. 19, when printing is performed in the peeling issue mode, the label continuum P on which desired information is printed on the label 26 in the printing section is bent at a steep angle by the peeling bar 33 and the nip roller 37 and is opened and closed. 3 is pulled toward the rear end. As a result, the labels 26 temporarily attached to the mount 25 of the label continuum P are mechanically peeled from the mount 25 and discharged one by one from the issue port 8. On the other hand, the mount 25 that becomes unnecessary after the label 26 is peeled is discharged from the rear of the opening / closing cover 3.

  Since the switching from the peeling issue mode described above to the normal issue mode can be performed by a procedure opposite to the procedure described above, the description thereof is omitted.

  As described above in detail, according to the label printer 1 of the present embodiment, it is possible to switch between the normal issue mode and the peeling issue mode with a simple operation.

  As mentioned above, the invention made by the present inventor has been specifically described based on the embodiment. However, the embodiment disclosed in this specification is an example in all respects and is limited to the disclosed technology. It is not a thing. That is, the technical scope of the present invention should not be construed restrictively based on the description in the embodiment, but should be construed according to the description of the scope of claims. All modifications are included without departing from the spirit and scope of the claims and the equivalent technology.

1 Label printer 2 Body case
3 Open / close cover 4 Peeling unit (peeling mechanism)
5 Front cover 5a Opening 6 Torsion spring 8 Issuing port 9 Cutter 10a Light emitting element 10b Light receiving element 11 Head bracket (opening / closing cover support mechanism)
11a, 11b Engaging claw 11c Engaging groove 11d Round hole 11e Rotating lever 12 Thermal head (printing head)
13 Coil spring (biasing member)
14 Circuit board 15 Operation panel 16 Display unit 17, 18 Operation button 19 Power button 20 Cover open button 21 Stepping motor 22 Battery case 22a Battery cover 23 Battery 25 Mount 26 Label 27 Position detection mark 30 Frame (platen unit support member)
30a long groove (first opening)
30b slot (second opening)
30c Notch 30d Engaging projection 31 Platen unit 32 Platen roller 33 Peeling bar 34 Support plate 34a Engaging projection 35 Platen roller shaft 35a Platen roller bearing 36 Gear 37 Nip roller 38 Nip roller shaft 40 Torsion spring 41 Screw 42 Side cover 42a Leaf spring 43 Discharge guide 44 Screw P Label continuum (printing medium)

Claims (3)

A printer for printing on a printing medium consisting of a label temporarily attached to a mount,
A housing ,
A cover wherein Ru is openably supported on the housing,
The al is provided with opening and closing cover is, a platen roller for conveying the pre-Symbol print medium,
The open-close cover in setting vignetting, a peeling mechanism for peeling the labels from the backing sheet at the time of peeling issuance of the print medium,
Wherein provided on the housing to support the closure during the closing cover of the open-close cover, the cover support mechanism is paired directed placed on the platen roller,
Provided in the cover support mechanism, the printing head for performing printing before Symbol print medium,
With
The peeling mechanism is
Provided in the extending direction of the platen roller of the cover, it has a nip roller disposed in proximity to said platen roller during exfoliation issuance of the print medium,
The platen roller is
When switching the open / close cover from the open state to the closed state, the cover moves toward the nip roller of the peeling mechanism,
The printer, wherein the opening / closing cover is moved away from the nip roller of the peeling mechanism when the opening / closing cover is switched from the closed state to the open state . The peeling mechanism is
A platen unit having a support plate for supporting the platen roller and a peeling bar disposed in proximity to the platen roller in a state of being movable together;
A platen unit support member provided at the one end of the opening / closing cover and supporting the platen unit in a movable state;
A nip roller supported by the platen unit support member and disposed adjacent to the platen roller when the print medium is peeled and issued;
The printer according to claim 1, characterized in that it comprises. 3. The printer according to claim 2, wherein the platen unit support member is provided with an opening for movably supporting the platen unit .

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