JP2013133105A - Peeling device and label printer equipped with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem of obstruction or the like of discharge of a label by a peeling bar when discharging the label while temporarily adhering it to a mount or using a mount-free label continuum in a peeling device or the like peeling off the label from the mount and discharging it.SOLUTION: A peeling device includes a platen roller drawing out a label continuum from a roll body and conveying it, a peeling member disposed at a first position for abutting on the label continuum conveyed by the platen roller to peel off the label from the mount in a first state of peeling off the label from the mount and discharging it, and disposed at a second position for withdrawing from a discharge course of the label continuum conveyed by the platen roller in a second state of discharging the printed label while leaving it temporarily adhered onto the mount, and a moving part operated to switch between the first state and the second state to move the peeling member between the first position and the second position.

Description

  In the present invention, when a label continuous body in which a plurality of labels are temporarily attached on a belt-like mount is drawn out from the roll body wound in a roll shape and discharged, the label is peeled from the mount. The present invention relates to a peeling device used for the above. Furthermore, the present invention relates to a label printer that prints on a label temporarily attached on a belt-like mount and / or a label without a mount.

  In a label printer that prints on a label, as a printing medium (hereinafter also referred to as “paper”), for example, a continuous label in which a plurality of labels are temporarily attached at a predetermined interval on a long strip (separator) The body is used. The paper is conveyed by a platen roller, and printing is performed on the label using a thermal head provided to face the platen roller. The printed label is peeled off from the mount using a peeling member such as a peeling bar and issued (see, for example, Patent Document 1).

  In addition, the label printer can be switched between the issue state where the printed label is released from the mount and issued, and the normal issue state where the printed label is issued while temporarily attached to the mount. Yes. In addition, a continuous label without a mount may be used as the paper. However, in the normal issue state or when using a continuous label without a mount, not only the peeling bar is unnecessary, but also the following problems occur.

(1) In a label continuum with a mount or a label continuum without a mount, the leading end of the printed label is caught by the peeling bar, or the label is caught between the peeling bar and the platen roller. Issuance may be hindered. In order to avoid this, if the distance between the peeling bar and the platen roller is reduced, a sufficient peeling angle cannot be obtained. In addition, a member that fills the gap between the peeling bar and the platen roller may be required. In particular, when using a continuous label without a backing sheet, the pressure-sensitive adhesive layer that is exposed sticks to the peeling bar, and the above-mentioned problems are likely to occur.

(2) In order to prevent the pressure-sensitive adhesive layer provided on the back surface of the label continuous body having no mount from adhering to the peeling bar, it is necessary to apply a non-stick coating to the peeling bar. In that case, the cost of the label printer increases, or the conveyance load increases due to the surface unevenness of the non-adhesive coating, and the paper becomes slack.

(3) If the operator holds the peeling bar when performing normal operations such as paper replacement, the peeling bar may be deformed.

JP-A-11-245467 (paragraphs 0016-0017, FIG. 2)

  Therefore, in view of the above points, the present invention provides a peeling device that can peel and discharge a label from a backing sheet, or a label printer equipped with a peeling device, when discharging a label while temporarily attached to the backing paper. It is another object of the present invention to eliminate problems such as the label being peeled off and transported by the peeling member when a continuous label without a mount is used.

  In order to solve the above-described problems, a peeling apparatus according to one aspect of the present invention includes a label continuous body in which a plurality of labels are temporarily attached on a belt-like mount, and a label continuous from a roll body wound in a roll shape. A peeling apparatus for peeling a label from a backing sheet when the body is pulled out and discharged, a platen roller for pulling and conveying a continuous label body from a roll body, and a first for peeling and discharging the label from the backing sheet In the state, the second label is disposed at the first position so as to come into contact with the label continuum conveyed by the platen roller and peel the label from the mount, and the printed label is ejected while temporarily attached to the mount. In the state, the separation member disposed at the second position for retreating from the discharge path of the label continuous body conveyed by the platen roller is separated from the first state and the second state. It is manipulated to obtain, comprising a moving unit that moves the release member between a first position and a second position.

  Moreover, the label printer which concerns on one viewpoint of this invention comprises the peeling apparatus which concerns on this invention, and the thermal head which is arrange | positioned facing a platen roller and prints on a label.

  According to one aspect of the present invention, when the label is released from the mount, the label is released from the mount by bringing the release member into contact with the label continuous body, and the label is temporarily attached to the mount. When ejecting or using a label continuum without mount, the peeling member is retracted from the discharge path of the label continuum to eliminate problems such as hindering label ejection and conveyance by the peeling member. be able to.

It is a perspective view showing the appearance of a label printer provided with the peeling device concerning one embodiment of the present invention. It is a perspective view which expands and shows the front panel shown in FIG. It is a perspective view which shows the structure of the peeling unit shown in FIG. It is a side view for demonstrating rotation operation | movement of the turning roller holding | maintenance part shown in FIG. It is an internal side view for demonstrating operation | movement of the label printer shown in FIG. It is a perspective view for demonstrating the slide operation | movement of the peeling unit shown in FIG. It is a side view for demonstrating the movement in the guide groove of the slide piece and positioning piece shown in FIG. It is a side view for demonstrating the slide operation | movement of the peeling bar shown in FIG. It is an internal side view for demonstrating operation | movement of the opening / closing cover in a normal issuing state. It is an internal side view which shows the state by which the opening / closing cover is locked by the peeling unit in the peeling issuing state. It is a front view which shows the structure of the locking mechanism of a peeling unit. It is a side view for demonstrating operation | movement of the locking mechanism shown in FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same component and the overlapping description is abbreviate | omitted.
FIG. 1 is a perspective view showing an appearance of a label printer provided with a peeling apparatus according to an embodiment of the present invention. In this label printer, as a printing medium (paper), a label continuous body in which a plurality of labels are temporarily attached at a predetermined interval on a long strip-shaped mount (separator) or a label continuous body without a mount is used. .

  For example, a continuous label without a mount is formed by continuously forming a plurality of labels in a strip-like label base material without separation, by forming cut portions such as perforations and slits in the width direction at predetermined intervals. It is what. A pressure-sensitive adhesive layer is provided on the back surface of the label base material, a release agent layer is provided on the surface of the label base material, and is wound in a roll shape with the pressure-sensitive adhesive layer and the release agent layer facing each other. Yes.

  Referring to FIG. 1, the label printer 1 includes a main body 2, a top panel 3, a front panel 4, an opening / closing cover 5, and a peeling unit 6. The upper panel 3 is attached to the upper surface of the main body 2 and is provided with operation buttons 31 that are operated to perform various inputs related to the printing operation. The front panel 4 is attached to the upper front portion of the main body 2. The main body 2, the top panel 3, and the front panel 4 constitute a housing of the label printer 1. Inside the housing, a storage unit for storing a roll body in which a print medium (paper) is wound in a roll shape is formed, and a printing unit for printing on a label is provided.

  The open / close cover 5 is a cover that can be opened and closed by rotating with respect to the housing, and is supported by the lower front portion of the main body 2. An open lever 7 is provided to open and close the open / close cover 5. The peeling unit (moving unit) 6 is mounted on the front panel 4 so as to be movable (slidable) in the vertical direction that is close to and away from the discharge port 8. The printed label is discharged from a discharge port 8 formed between the housing and the opening / closing cover 5.

  The label printer shown in FIG. 1 has a peeling issue state in which the printed label is peeled off from the mount and is issued, and a normal issue state (also referred to as a continuous issue state) in which the printed label is temporarily attached to the mount. It can be used by switching. That is, by operating the operation button 31, switching between the peeling issue mode and the normal issue mode (also referred to as continuous issue mode) in the electric control system is performed, and the peeling unit 6 is slid to release the peeling in the peeling mechanism. Switching between the state and the normal issue state is performed. Even when a continuous label without a mount is used, the normal issue mode is set and label is issued in the normal issue state.

  Further, mode setting switching in the electric control system may be automatically performed by detecting the slide position of the peeling unit or the peeling bar using a sensor (not shown). For example, when the control unit provided in the main body 2 detects that the peeling bar is in the first position (or that the peeling unit is in the lower limit position), the mode of the electric control system is changed to the peeling issue mode. And the mode of the electric control system may be set to the normal issue mode when it is detected that the peeling bar is in the second position (or that the peeling unit is in the upper limit position).

  2 is an enlarged perspective view showing the front panel shown in FIG. The front panel 4 is provided with a peeling unit attachment portion 41 to which the peeling unit 6 is slidably mounted. A guide groove 42 for guiding the slide of the peeling unit 6 is formed on the side surface of the peeling unit mounting portion 41, and a positioning member 43 for positioning the peeling unit 6 is provided in the guide groove 42, and is continuous with the guide groove 42. An opening 44 is formed. In FIG. 2, only the guide groove 42 to the opening 44 formed on the right side surface of the peeling unit mounting portion 41 are shown. However, the guide groove 42 is also formed on the left side surface of the peeling unit mounting portion 41 and positioned. A member 43 is provided.

  3 is a perspective view showing the configuration of the peeling unit shown in FIG. 1, wherein (a) is a view seen from the front side, and (b) is a view seen from the back side. 4A and 4B are side views for explaining the rotation operation of the turning roller holding portion shown in FIG. 3, in which FIG. 4A shows a state where it is not swung, and FIG. 4B shows a state where it is swung. Show.

  The peeling unit 6 includes a slide portion 61 and a turning roller support portion 62, and a label discharge port 63 is formed between the slide portion 61 and the turning roller support portion 62. The slide part 61 is slidable along the guide groove 42a (FIG. 7) formed in the peeling unit attachment part 41. The turning roller support portion 62 is rotatably supported by the slide portion 61 to support the turning roller 10 so as to be rotatable, and along the guide groove 42 b (FIG. 7) formed in the peeling unit attachment portion 41. It can slide.

  An opening 611 through which the open lever 7 passes is formed in the slide portion 61. In addition, slide pieces 612 to 615 that are slidable along guide grooves 42 a (FIG. 7) formed on the side surface of the peeling unit attachment portion 41 are provided on the side surface of the slide portion 61.

  The turning roller support portion 62 is provided with a pair of arm portions 621 extending in a direction substantially orthogonal to the rotation axis of the turning roller 10 to be supported. The tip ends of the pair of arm portions 621 are rotatably supported by the side surfaces of the slide portion 61, and the torsion spring 11 as a biasing member presses the turning roller 10 against the housing (or cover 5) side. The support part 62 is urged.

  Therefore, when the external force does not act on the turning roller support portion 62, the turning roller 10 is urged in a direction to be pressed against the housing side as shown in FIG. When a force in the direction of pulling 10 away from the housing acts on the turning roller support portion 62, the turning roller support portion 62 is swung as shown in FIG.

  A pair of positioning pieces 622 slidable along the guide grooves 42b (FIG. 7) formed on the side surface of the peeling unit attachment portion 41 are provided on the outer side surfaces of the pair of arm portions 621 in the turning roller support portion 62. Each is provided.

  FIG. 5 is an internal side view for explaining the operation of the label printer shown in FIG. 1, (a) shows a normal issue state, and (b) shows a peeling issue state. A print medium (paper) wound in a roll shape is rotatably held in a storage portion formed in the casing of the label printer. In FIG. 5, the print medium is a label continuum configured by temporarily attaching a plurality of labels 12 to a mount 13 so as to be peelable. As the label 12, for example, thermal paper that develops a specific color (such as black or red) when a certain temperature region is reached is used.

  A thermal head 14 is provided in the casing of the label printer. The open / close cover 5 rotatably supports the platen roller 15 and also supports a peeling bar (shaft) 16 that is a peeling member so as to be slidable. Although not shown in FIG. 5, the label printer housing is provided with a stepping motor that rotates the platen roller 15 via a gear and the like, and a label sensor that detects the position of the label 12. .

  The platen roller 15 is rotated by being driven by a stepping motor, and pulls out and conveys the sheet from the storage unit. The conveyance of the sheet by the platen roller 15 is controlled based on the detection result of the label sensor. In addition, when conveying the label continuous body without a base_sheet | mounting_paper, the platen roller 15 may use what gave the process which is easy to peel on the surface.

  The thermal head 14 is disposed so as to face the platen roller 15 through the paper, and prints on the label 12. The thermal head 14 has a set of fine heating elements that generate heat when an electric current is applied. Printing is performed by applying a voltage to these heat generating elements to cause the heat generating elements to generate heat by applying a current and coloring the thermal coloring layer provided on the surface of the label 12.

  The peeling unit 6 is operated to switch between a peeling issuance state in which the printed label is peeled off from the mount and issued and a normal issuance state in which the printed label is issued as it is, and the peeling bar 16 is moved in conjunction therewith. Let As shown in FIG. 5A, the peeling unit 6 moves upward (in a direction away from the discharge port 8 and the peeling bar 16) in the normal issuing state, and in the peeling issuing state, FIG. As shown in FIG. 4, the movement is in the downward direction (the direction close to the discharge port 8 and the peeling bar 16).

  As shown in FIG. 5B, in the peeling issue state, the peeling bar 16 comes into contact with the print medium conveyed by the platen roller 15 and peels the label 12 from the mount 13 in the first position ( It is arranged on the upper side in the figure. Here, the first position is a position facing the discharge path from the platen roller 15 to the discharge port 8, and the peeling issue operation is performed by bringing the peeling bar 16 into contact with the mount 13 at this position. It becomes possible. Further, the peeling unit 6 turns the carrying direction of the mount separated by the peeling bar 16. In this way, the peeling unit 6 and the peeling bar 16 peel the printed label 12 from the mount 13.

  As shown in FIG. 5A, in the normal issuing state, the peeling bar 16 is disposed at the second position (lower side in the figure) in order to retreat from the discharge path of the paper conveyed by the platen roller 15. The Here, the second position is a position away from the printing medium conveyed along the discharge path from the platen roller 15 to the discharge port 8, and is discharged toward the discharge port at this position. By retracting the peeling bar 16 so as not to contact the print medium, it is possible to perform a continuous issuing operation without the print medium contacting the peel bar 16.

  As a result, the leading end of the printed label 12 is not caught on the peeling bar 16 or the label 12 is not caught between the peeling bar 16 and the platen roller 15, so that the issue of the label 12 is not hindered. Further, it is not necessary to apply a non-adhesive coating to the peeling bar 16 in order to prevent the pressure-sensitive adhesive layer provided on the back surface of the label continuous body without the mount from adhering to the peeling bar. Furthermore, the risk of the operator holding the peeling bar 16 when performing normal operations such as paper replacement is reduced.

Next, the switching operation of the issuing operation by sliding the peeling unit in this embodiment will be described with reference to FIGS.
6A and 6B are perspective views for explaining the sliding operation of the peeling unit shown in FIG. 1, in which FIG. 6A shows a normal issuing state, and FIG. 6B shows a peeling issuing state. 7A and 7B are side views for explaining the movement of the slide piece and the positioning piece shown in FIG. 4 in the guide groove. FIG. 7A shows a normal issuance state, and FIG. 7B shows a state during movement. (C) shows a peeling issue state.

  As shown in FIGS. 5A and 6A, in the normal issue state, the peeling unit 6 is positioned at the upper limit of the slide range, and the turning roller 10 is positioned above the discharge port 8. The label 12 printed by the thermal head 14 is discharged from the discharge port 8 while being temporarily attached to the mount 13.

  FIG. 7A shows a state in which the slide pieces 612 to 613 and the positioning piece 622 are slidable along the guide groove 42 formed on the left side surface of the peeling unit mounting portion 41 of the front panel 4 shown in FIG. Indicates the position. By the positioning piece 622 coming into contact with the upper surface 43a of the positioning member provided in the guide groove 42, the downward sliding of the peeling unit 6 is restricted, and the peeling unit 6 is positioned in the normal issue state.

  The upper surface 43a of the positioning member is inclined with respect to the sliding direction of the slide portion 61, but in a direction in which the turning roller support portion 62 (positioning piece 622) is pressed against the housing side by the torsion spring 11 (FIG. 3). Since it is biased, the positioning piece 622 comes into contact with the positioning member 43 and the downward sliding of the peeling unit 6 is restricted.

  In this state, when a predetermined force is applied to the peeling unit 6 in the downward direction, the turning roller support portion 62 is in a direction against the urging force of the torsion spring 11 along the slope of the upper surface 43a of the positioning member 43. Since it swings, the peeling unit 6 can be slid.

  As shown in FIGS. 5B and 6B, in the peeling issue state, the peeling unit 6 is positioned at the lower limit of the slide range, and the turning roller 10 is positioned below the discharge port 8. As a result, the turning roller 10 comes into contact with the platen roller 15, and the label discharge port 63 of the peeling unit 6 is disposed at a position corresponding to the position of the discharge port 8.

  Therefore, the mount 13 discharged from the discharge port 8 with the printed label 12 temporarily attached is folded back by the peeling bar 16 and separated from the label 12, and is sandwiched between the turning roller 10 and the platen roller 15. Thus, the transport direction of the mount 13 is turned. As a result, the label 12 is peeled from the mount 13 and discharged from the label discharge port 63, and the mount 13 separated from the label 12 is discharged from the lower side of the peeling unit 6.

  In the peeling issue state, the turning roller 10 that contacts the platen roller 15 is urged in a direction to be pressed against the housing by the urging force of the torsion spring 11 (FIG. 3), so that the turning roller 10 presses against the platen roller 15. Is done. Therefore, the turning roller 10 and the platen roller 15 can pinch and convey the mount 13 separated from the label 12 while rotating. As a result, a sufficient tension can be applied to the mount 13 that is folded back by the release bar 16, and the label 12 can be peeled off from the mount 13 satisfactorily.

  FIG. 7C shows the positions of the slide pieces 612 to 613 and the positioning pieces 622 that are slidable along the guide grooves 42 formed on the front panel in the peeling issue state. When the positioning piece 622 comes into contact with the lower surface 43b of the positioning member formed in the guide groove 42, the upward sliding of the peeling unit 6 is restricted, and the peeling unit 6 is positioned in the peeling issue state. Note that the lower surface 43 b of the positioning member is a surface that is substantially orthogonal to the sliding direction of the sliding portion 61.

  When the peeling unit 6 slides in the vertical direction, the slide pieces 612 to 613 and the positioning piece 622 slide along the guide groove 42. The guide groove 42 is divided into two guide grooves by the positioning member 43. Has been. As shown in FIG. 7, the guide groove 42 includes a first guide groove 42 a that guides the slide in the vertical direction such as the slide pieces 612 to 613 and a second guide groove 42 b that guides the slide of the positioning piece 622. Contains.

  Further, in the second guide groove 42b, the upper surface 43a of the positioning member regulates the downward sliding of the positioning piece 622, and regulates the switching from the normal issuing state to the peeling issuing state. Function as. Further, the lower surface 43b of the positioning member functions as a second restriction surface that restricts upward sliding of the positioning piece 622 and restricts switching from the peeling issue state to the normal issue state.

  Switching from the normal issuing state to the peeling issuing state can be performed by simply pressing down the peeling unit 6 with a hand or the like and sliding the peeling unit 6 downward with the mount 13 protruding from the discharge port 8. That is, when the peeling unit 6 is pushed down, the positioning piece 622 is pushed by the upper surface 43a of the positioning member that is an inclined surface with respect to the sliding direction of the sliding portion 61, and a force acts in a direction in which the positioning piece 622 is separated from the casing. Therefore, as shown in FIG. 4B, the turning roller support portion 62 is swung.

  Accordingly, the positioning piece 622 moves along the inclination of the upper surface 43a of the positioning member as shown by the arrow in FIG. 7A, and gets over the positioning member 43 as shown in FIG. It switches to the peeling issue state shown in c). At that time, the slide pieces 612 to 613 move along the guide groove 42a. Further, at least the surface of the positioning piece 622 that contacts the positioning member 43 is a convex curved surface, and the positioning piece 622 is configured to move smoothly along the guide groove 42b.

  By sliding the peeling unit 6 downward with the mount 13 protruding from the discharge port 8, the mount 13 is sandwiched between the turning roller 10 and the platen roller 15, as shown in FIG. It is folded at the peeling bar 16.

  To switch from the peeling issue state to the normal issue state, the peeling unit 6 is pushed up by hand while the turning roller support portion 62 is swung in a direction in which the turning roller 10 of the peeling unit 6 is separated from the casing, and the peeling unit 6 is moved. This can be done by simply sliding it upward. That is, as shown in FIG. 4B, when the turning roller support part 62 is swung in the direction in which the turning roller 10 is separated from the housing, the positioning piece 622 becomes as shown by an arrow in FIG. The positioning member moves to a position where the upper slide restriction by the lower surface 43b of the positioning member is released. When the peeling unit 6 is pushed up in this state, the positioning piece 622 gets over the positioning member 43 as shown in FIG. 7B and switches to the normal issuing state shown in FIG. At that time, the slide pieces 612 to 613 move along the guide groove 42a.

  FIG. 8 is a side view for explaining the sliding operation of the peeling bar shown in FIG. 5, (a) shows a normal issuing state, (b) shows a moving state, and (c) shows The peeling issue state is shown. The peeling bar 16 is attached to the opening / closing cover 5 so as to be slidable in substantially the same direction as the sliding direction of the sliding portion 61.

  In addition, a pair of coil springs 17 is provided as an opening / closing cover as a peeling bar biasing member that biases the peeling bar 16 to move from the first position (upper side in the figure) to the second position (lower side in the figure). 5 is attached. For example, a storage groove for storing the coil spring 17 may be formed inside the left and right side surfaces of the opening / closing cover 5, and the coil spring 17 may be inserted into the storage groove. One end (upper end in FIG. 8) of the coil spring 17 is fixed to the opening / closing cover 5, and the other end (lower end in FIG. 8) of the coil spring 17 urges the peeling bar 16 downward.

  As shown in FIG. 8A, in the normal issuance state, the peeling unit 6 is positioned at the upper limit of the slide range, and the peeling bar 16 is urged downward by the coil spring 17 to lower the lower limit of the slide range. Retreat to the second position. Therefore, the peeling unit 6 and the peeling bar 16 do not affect the sheet conveyance.

  On the other hand, as shown in FIG. 8C, in the peeling issuance state, the peeling unit 6 is located at the lower limit of the slide range, and the inclined surface 62a of the turning roller support part comes into contact with the peeling bar 16 and peels off. The bar 16 moves to the upper second position within the slide range. Thereby, the peeling bar 16 can fold the mount 13 discharged from the discharge port 8 and guide it between the turning roller 10 and the platen roller 15.

  Switching between the normal issue state and the release issue state of the peeling bar 16 is performed in conjunction with the slide of the peeling unit 6. When switching from the normal issuing state to the peeling issuing state, the turning unit 6 of the peeling unit 6 moves along the guide groove 42b shown in FIG. 7 by sliding the peeling unit 6 downward. Accordingly, the turning roller 10 moves in a direction away from the casing as indicated by an arrow in FIG. 8A, and then moves in a direction approaching the casing as indicated by an arrow in FIG. 8B. Then, as shown in FIG. Further, the inclined surface 62a inclined with respect to the rotation direction of the turning roller support portion 62 pushes up the peeling bar 16 against the urging force of the coil spring 17 and moves it from the second position to the first position. As a result, the peeling bar 16 switches to the peeling issue state.

  When switching from the separation issuing state to the normal issuing state, the separation unit 6 is pushed up by a hand or the like while the turning roller support part 62 is swung in a direction away from the casing, and the separation unit 6 is slid upward. Thereby, the turning roller support part 62 of the peeling unit 6 moves along the guide groove 42b shown in FIG. Accordingly, the turning roller 10 moves in a direction away from the housing as indicated by an arrow in FIG. 8C, and then moves in a direction approaching the housing through the state shown in FIG. 8B. By doing so, as shown in FIG. Further, since the inclined surface 62a of the turning roller support part is separated from the peeling bar 16, the peeling spring 16 is normally issued by the coil spring 17 pushing the peeling bar 16 down and moving from the first position to the second position. Switch to.

Next, the lock mechanism of the open / close cover in the present embodiment will be described with reference to FIGS. 9 and 10.
9A and 9B are internal side views for explaining the operation of the opening / closing cover in the normal issuing state. FIG. 9A shows a state where the opening / closing cover is closed, and FIG. 9B shows a state where the opening / closing cover is opened. . FIG. 10 is an internal side view showing a state in which the opening / closing cover is locked by the peeling unit in the peeling issuing state.

  In FIG. 9, the peeling unit 6 is in a normal issue state. In the opening 611 through which the open lever 7 passes, there is a space for operating the open lever 7 upward, and the open lever 7 is moved upward to a position where the axis of the platen roller 15 is released from the stopper 71. Be able to.

  As shown in FIG. 9A, when the opening / closing cover 5 is closed, the platen roller 15 attached to the opening / closing cover 5 is stopped by a “U” -shaped stopper 71 interlocked with the open lever 7. The axis is held. On the other hand, when the open lever 7 is moved upward, the shaft of the platen roller 15 is released from the stopper 71 and the opening / closing cover 5 can be opened as shown in FIG. 9B.

  On the other hand, as shown in FIG. 10, when the peeling unit 6 is in the peeling issue state, there is sufficient space in the opening 611 through which the open lever 7 passes to move the open lever 7 upward. Does not exist. Therefore, even if the open lever 7 is moved upward, the open lever 7 contacts the upper surface of the opening 611. Therefore, the open lever 7 is moved upward until the shaft of the platen roller 15 is released from the stopper 71. I can't.

  Thus, in the normal issue state, the open / close cover 5 can be opened by operating the open lever 7, but in the release issue state, the open lever 7 is locked so that the open / close cover 5 cannot be opened. The Thereby, it is possible to prevent an accident such as tearing of the paper wound around the peeling bar 16 and the turning roller 10 by opening the opening / closing cover 5 in the peeling issue state.

Next, the peeling mechanism of the peeling unit in this embodiment will be described with reference to FIGS. 11 and 12.
FIG. 11 is a front view illustrating a configuration of a locking mechanism of the peeling unit. 12 is a side view for explaining the operation of the locking mechanism shown in FIG. 11. FIG. 12A shows a state in which the open / close cover is open, and FIG. 12B shows a state in which the open / close cover is closed. Indicates the state. In the present embodiment, switching from the normal issue state to the peel issue state, that is, sliding downward of the peel unit 6 positioned above is prohibited when the open / close cover 5 is opened.

  As shown in FIG. 11, among the slide pieces 612 to 615 formed on the slide portion 61 of the peeling unit 6, the lower right slide piece 615 when viewed from the front is formed longer than the depth of the guide groove 42. Yes. Therefore, the slide piece 615 penetrates the guide groove 42 through the opening 44 shown in FIG. When the opening / closing cover 5 is opened, the slide piece 615 that has penetrated the guide groove 42 is locked by the locking piece 23, thereby preventing the peeling unit 6 from sliding downward.

  Referring to FIGS. 11 and 12, the lock mechanism for locking the peeling unit 6 includes a rotating member 22, a locking piece 23, a release lever 24, and a torsion spring 25. The rotating member 22 is rotatably supported by a side plate 21 provided in the main body 2 (FIG. 1). As the rotation member 22 rotates, the locking piece 23 moves between a position where the slide piece 615 is locked and a position where the locking of the slide piece 615 is released. When the release lever 24 comes into contact with the opening / closing cover 5, the release member 24 turns the turning member 22 to release the locking of the slide piece 615 by the locking piece 23. The torsion spring 25 is provided on the rotation shaft of the rotation member 22 and biases the locking piece 23 to a position where the slide piece 615 is locked.

  FIG. 12A shows a state of the lock mechanism when the opening / closing cover 5 is opened. Since the locking piece 23 is biased to the position where the sliding piece 615 is locked by the torsion spring 25, the sliding piece 615 that has penetrated the guide groove 42 is locked by the locking piece 23, and thus the peeling unit 6. Sliding downward is prohibited.

  FIG. 12B shows a state of the lock mechanism when the opening / closing cover 5 is closed. The release lever 24 contacts the opening / closing cover 5 to rotate the rotating member 22 against the urging force of the torsion spring 25. As a result, the locking of the slide piece 615 by the locking piece 23 is released, and the peeling unit 6 can be slid downward.

  As described above, according to this embodiment, by operating the peeling unit, the peeling bar can be moved in conjunction with the movement of the peeling unit. Therefore, even when the label printer is worn on the body or wearing a work glove, the switching operation between the normal issue state and the peeling issue state can be easily performed, so that the operability is improved. In addition, when a printed label is temporarily attached to a mount, or when a continuous label without a mount is used, problems such as the label being prevented from being issued by a peeling bar can be solved. Furthermore, when the present invention is applied to a dual-purpose type label printer that can use both a continuous label without a mount and a continuous label with a plurality of labels temporarily mounted on a belt-like mount, the operability is further improved. To do.

  The embodiment of the label printer has been described above. However, the present invention can also be applied to a peeling apparatus that excludes the printing function from the label printer. Such a peeling device is configured to pull a label continuous body from a roll body in which a label continuous body having a plurality of labels temporarily attached on a belt-shaped mount is wound in a roll shape and eject the label from the mount. Used for peeling.

  DESCRIPTION OF SYMBOLS 1 ... Label printer, 2 ... Main body, 3 ... Top panel, 4 ... Front panel, 5 ... Opening / closing cover, 6 ... Peeling unit, 7 ... Open lever, 8 ... Discharge port, 10 ... Turning roller, 11 ... Torsion spring, 12 ... Label, 13 ... Mount, 14 ... Thermal head, 15 ... Platen roller, 16 ... Release bar, 17 ... Coil spring, 21 ... Side plate, 22 ... Rotating member, 23 ... Locking piece, 24 ... Release lever, 25 ... Torsion spring, 31 ... operation button, 41 ... peeling unit mounting part, 42, 42a, 42b ... guide groove, 43 ... positioning member, 43a ... upper surface of positioning member, 43b ... lower surface of positioning member, 44 ... opening, 61 ... slide Part, 611 ... opening, 612 to 615 ... slide piece, 62 ... turning roller support part, 62a ... inclined surface of turning roller support part, 621 ... a Arm portion, 622 ... positioning piece, 63 ... label discharge port 71 ... Stopper

Claims (9)

A stripping device for stripping the label from the mount when the continuous label is continuously rolled out in the form of a roll. There,
A platen roller that pulls out and conveys the label continuous body from the roll body;
In the first state where the label is peeled from the mount and discharged, the printed label is placed at the first position so as to come into contact with the label continuum conveyed by the platen roller and peel the label from the mount. In the second state of discharging while being temporarily attached on the mount, a peeling member disposed at a second position for retreating from the discharge path of the label continuum conveyed by the platen roller;
A moving unit that is operated to switch between the first state and the second state, and moves the peeling member between the first position and the second position;
A peeling apparatus comprising:   The peeling apparatus according to claim 1, wherein the moving unit turns a carrying direction of the mount separated by the peeling member in the first state. A peeling member urging member that urges the peeling member to move from the first position to the second position;
When the moving unit switches from the second state to the first state, the moving member is moved from the second position to the first position against the urging force of the detaching member urging member. The peeling apparatus according to claim 1, wherein the peeling apparatus is moved. A housing in which a storage portion for storing the roll body is formed;
The platen roller can be opened and closed by rotating with respect to the casing, and the peeling member can be moved between the first position and the second position. The peeling apparatus according to claim 1, further comprising a cover to be supported. The moving unit is
A slide portion slidable along a first guide groove formed in the housing;
A turning roller for turning the carrying direction of the mount by sandwiching the mount separated by the peeling member with the platen roller;
While being rotatably supported by the slide portion, the turning roller is rotatably supported, and is slidable along a second guide groove formed in the housing. In the first state, the peeling is performed. A turning roller support that contacts the member;
An urging member that urges the turning roller support portion so as to press the turning roller against the housing;
The peeling apparatus according to claim 4, comprising:   When the turning roller support portion slides along the second guide groove, the turning roller moves in a direction away from the housing and then moves in a direction approaching the housing. Item 6. The peeling device according to Item 5.   The peeling apparatus according to any one of claims 1 to 6, wherein in the second state, a label continuous body without a mount is pulled out and discharged. The peeling apparatus according to any one of claims 1 to 7,
A thermal head that is disposed opposite the platen roller and prints on a label;
A label printer comprising:   The label printer according to claim 8, wherein a peeling issue mode and a normal issue mode in the electric control system are switched by operating the moving unit.

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