JP2020001204A - Print device - Google Patents

Abstract

To ensure a smooth reverse direction transportation of label tape even if a thermal head projects out to a carrying path side rather than a guiding member.SOLUTION: A label producing device 1 has a platen roller 66; a thermal head 51; a heat radiation member 52 for supporting the thermal head 51 on a lower side; and a guiding member 60 adjacently provided on a front side of the heat radiation member 52, and guiding a label tape 10A carried in the reversed direction. The guiding member 60 is equipped with an extending portion 62 configured in a platy shape with the same thickness as the thickness of the thermal head 51 and extending to the thermal head 51 side, near an end portion on the rear and lower side. The extending portion 62 is provided so that a vicinity of a rear side end portion is formed so as to vertically deform and while an upper surface 62b contacts with a lower surface 52a of a front side end portion of the heat radiation member 52, a rear side end portion lower surface 62a is at the vertically same position as the lower surface 51a of the thermal head 51.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a printing device that prints on a label tape.

  2. Description of the Related Art A printing apparatus that performs printing on a label tape is known (for example, see Patent Document 1). In this conventional printing apparatus, desired printing is performed by a thermal head on a conveyed label tape (label paper). In that case, a configuration is disclosed in which a guide member (guide member) is provided downstream of the thermal head in the transport direction. In this way, the guide member bends (curves) the label tape downward when the label tape is transported in the reverse direction (hereinafter, simply referred to as “reverse transport” as appropriate), so that the end of the label becomes the thermal head. It is possible to prevent the smooth reverse conveyance from being hindered by, for example, being peeled off by being interfered (trapped) with a corner.

JP 2011-104904 A

  By the way, in the above-mentioned prior art, it is preferable that the degree of bending of the label tape is as small as possible in consideration of the transport load of the label tape. That is, it is conceivable to make the lower end surface of the guide member and the lower end surface of the thermal head the same height. However, even in this case, the lower end surface of the thermal head is lower than the lower end surface of the guide member (ie, when the label tape is conveyed) due to variations in the dimensions of the respective components of the guide member and the thermal head, assembling errors, and the like. If it protrudes (to the side of the path), the problem of obstruction of the reverse conveyance due to interference of the label still occurs.

  SUMMARY OF THE INVENTION It is an object of the present invention to provide a printing apparatus that can ensure smooth reverse conveyance of a label tape even when a thermal head protrudes toward a conveyance path from a guide member.

  In order to achieve the above object, the present invention is a printing apparatus that performs printing on a label tape, and a frame, provided on the frame, the label tape, a forward direction along a predetermined transport path, and A transport roller capable of transporting in any of the opposite directions, a thermal head for performing desired printing on the label tape transported to one side in the first direction along the transport path by the transport roller, A heat dissipating member provided on the frame and supporting the thermal head on one side in a second direction substantially orthogonal to the first direction; and a heat dissipating member provided on the frame adjacent to the first direction one side of the heat dissipating member. And a guide member for guiding the label tape, wherein the guide member is provided on the other side in the first direction and near an end on one side in the second direction. An extension portion is formed in a flat plate shape having substantially the same thickness as the thickness and extends toward the thermal head, and the extension portion deforms in the second direction near an end on the other side in the first direction. The other surface in the first direction is formed so that the surface on the other side in the second direction is in contact with the surface on the one side in the second direction at one end of the heat dissipation member on the one side in the first direction. A surface of the thermal head at one end in the second direction is provided at substantially the same position in the second direction as a surface of the thermal head on one side in the second direction. I do.

  In the printing apparatus of the present invention, the label tape is transported by the transport roller to one side (for example, the front side of the printing apparatus placed horizontally) in the first direction (for example, the horizontal direction; hereinafter, the same applies in parentheses), and the transport is performed. Desired printing is performed on the label tape to be printed by the thermal head. The thermal head is supported by a heat radiating member provided on the other side (for example, the upper side) in the second direction (for example, the vertical direction), and heat generated by the thermal head at the time of performing the printing is transmitted to the heat radiating member and radiated. .

  Here, in the present invention, as the transport of the label tape by the transport means, in addition to the forward transport performed when performing the above-described printing, for positioning the label tape before starting printing, and the like. There is also a conveyance in the reverse direction that is performed. A guide member is provided adjacent to one side of the heat dissipation member in the first direction (in other words, a downstream side in the transport direction) for performing the reverse transport, and when the label tape is transported in the reverse direction. Guide.

  Specifically, an extension is provided near the end of the guide member on the other side in the first direction (for example, on the rear side of the printing apparatus) and on the one side in the second direction (for example, on the lower side). Then, the second direction position (for example, the vertical position) of the surface (lower surface) on one side in the second direction of the extension portion is the second direction position (lower position) of the surface (lower surface) on the one side in the second direction of the thermal head. (Up and down direction positions) are substantially the same. As a result, the label tape abutted on the thermal head as described above to form a print and led out to the one side in the first direction (the front side of the printing apparatus) from the thermal head is moved to the first direction by the reverse conveyance. When the guide member is returned to the other side (rear side of the printing apparatus), the guide member is smoothly guided to the thermal head side from the extended portion of the guide member.

  However, even if the surface of the extension portion of the guide member on the one side in the second direction and the surface of the thermal head on the one side in the second direction are configured to be aligned as described above, the manufacturing process may be difficult. Actually, dimensional variation within the manufacturing tolerance occurs in the heat radiation member and the guide member. For this reason, for example, when the dimension of the heat radiating member in the second direction (vertical direction) is larger than the design reference value, the surface (lower surface) on one side of the thermal head in the second direction is in the second direction of the extending portion. There is a possibility that it may protrude from one surface (lower surface) to one side (lower side, in other words, the transport path side) in the second direction. In this case, when the label tape is returned to the other side in the first direction by the reverse conveyance as it is, the label tape interferes with the step between the thermal head and the extending portion (step in the riding direction) caused by the protrusion and smoothly. Reverse conveyance may be hindered.

  Therefore, in the present invention, the vicinity of the end of the extension portion on the other side in the first direction (the rear side of the printing apparatus) is formed so as to be deformable in the second direction (vertical direction). Thus, in the case where the heat radiation member has a large dimension in the second direction (vertical dimension) as described above, for example, the extending portion may be connected to one end of the heat radiation member in the first direction (the front side of the printing apparatus). As a result, it can be deformed to one side in the second direction by being pushed to one side (downward) in the second direction. As a result, the step can be alleviated, so that unlike the above-described conventional structure, conveyance inhibition is suppressed, and smooth reverse conveyance of the label tape can be ensured.

  ADVANTAGE OF THE INVENTION According to this invention, even if the thermal head protrudes to the conveyance path side rather than a guide member, the smooth reverse conveyance of a label tape can be ensured.

It is the perspective view which looked at the external appearance of the label production apparatus of one Embodiment of this invention from the front upper right. It is the perspective view which looked at the state which opened the upper cover of the label production apparatus from the front upper right. It is the perspective view seen from the front right upper part showing the state which opened the upper cover of the label production apparatus and attached the tape roll. It is a sectional side view showing the internal structure of a label production device. FIG. 5 is a side cross-sectional view extracting and representing main parts in FIG. 4. It is the elements on larger scale of FIG. FIG. 3 is a perspective view illustrating a detailed structure of a guide member in a vertically inverted state. Explanatory drawing showing the case where the lower surface of the thermal head is located at the same position in the vertical direction as the lower surface of the extension of the guide member, and the case where the lower surface of the thermal head protrudes below the lower surface of the extension of the guide member. FIG. 5 is an explanatory diagram illustrating a case where the lower surface of the thermal head is located above the lower surface of the extending portion of the guide member.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

<Schematic structure of label producing device>
First, referring to FIG. 1, a schematic external structure of a label producing apparatus 1 (corresponding to an example of a printing apparatus) of the present embodiment will be described. In the following description, the up-down direction, the front-rear direction, and the left-right direction correspond to the arrow directions appropriately shown in each drawing such as FIG.

  In FIG. 1, the label producing apparatus 1 includes a housing 2 (corresponding to an example of a frame). The housing 2 includes a box-shaped housing main body 3 and an upper cover 5 that covers an upper portion of the housing main body 3. The housing body 3 and the upper cover 5 are made of, for example, resin.

  A release knob 8 is provided on the side wall of the housing main body 3 to release the locking of the upper cover 5 to the housing main body 3 by a user's manual operation so that the upper cover 5 can be opened. I have.

  At the upper end of the front surface of the housing body 3 is provided a discharge unit 6 for discharging a printed label tape (described later) from the inside of the housing 2 to the outside.

  The upper cover 5 is rotatably connected to the housing body 3 at a rear end portion, so that the upper cover 5 can be opened and closed with respect to the housing body 3.

  An operation unit 7 including buttons such as a power button 7A and a feed button 7B for discharging the label tape by a predetermined length is disposed at a position near the front of the upper surface of the upper cover 5. A display unit 5A is provided at a substantially central position on the upper surface of the upper cover 5. The display unit 5A displays various information related to printing of the label tape. A cutting blade 32 (see FIGS. 4 and 5) for cutting the label tape is provided at the lower end of the front surface of the upper cover 5. Details of the cutting blade 32 will be described later.

<Internal structure of label producing device>
Next, the internal structure of the label producing apparatus 1 will be described with reference to FIGS.

  As shown in FIGS. 2 and 3, the label producing apparatus 1 has a concave roll storage unit 4 behind the internal space of the housing body 3. The roll storage unit 4 rotatably stores a tape roll 10 in which a label tape 10A having a predetermined width is wound in a roll shape.

  A pair of support members that rotatably support the tape roll 10 by mounting shaft portions (not shown) at both left and right ends of the tape roll 10 stored in the roll storage unit 4 inside the left and right side walls of the housing body 3. 30 and 30 are provided. An inclined surface portion 4A for guiding the label tape 10A fed from the tape roll 10 obliquely upward and forward is provided at a front portion of the bottom surface portion of the roll storage portion 4.

  The label tape 10A is a so-called die-cut label tape having a plurality of label portions 11 (for example, made of thermal paper) cut in a predetermined shape (a rectangular shape in the example of FIG. 3) in advance. The plurality of label portions 11 are discretely arranged along the longitudinal direction at a position in the center of the release paper 12 in the width direction by sticking to the release paper 12 with an adhesive layer.

  At this time, in the label producing apparatus 1, a usage mode in which the label tape 10A is stored in the roll storage unit 4 so as to be fed out from the lower side of the tape roll 10, and the label tape 10A is fed out from the upper side of the tape roll 10. As described above, any of the usage modes of storing in the roll storage unit 4 is possible. In particular, in this example, as shown in FIG. 3, the tape roll 10 is housed in the roll housing so that the label tape 10A is fed from the lower side of the roll. In the tape roll 10, the label tape 10 </ b> A is wound so that the printing surface of the label portion 11 is radially inside (relative to the release paper 12).

  A platen roller 66 (corresponding to an example of a transport roller) that transports the label tape 10A fed from the tape roll 10 is provided at a front end of the housing body 3. As shown in FIGS. 2 and 3, brackets 68 are provided at left and right inner positions of the front end of the housing body 3 to rotatably support both axial ends of a roller shaft 66 </ b> A of the platen roller 66. . A gear 67 for driving the platen roller 66 is fixed to one shaft end of the roller shaft 66A. The gear 67 meshes with a gear train connected to a drive motor (not shown) on the housing body 3 side.

  A thermal head 51 for printing on the label tape 10A is attached to the lower side of the front end of the upper cover 5. The mounting position of the thermal head 51 on the upper cover 5 corresponds to the platen roller 66 of the housing body 3. By closing the upper cover 5, the label tape 10A is sandwiched between the thermal head 51 provided on the upper cover 5 side and the platen roller 66 provided on the housing body 3 side. Thus, the label tape 10A can be transported by the platen roller 66, and the label head 10A can be printed by the thermal head 51.

  At this time, as described above, the label tape 10 </ b> A is wound around the tape roll 10 stored in the roll storage unit 4 so that the label portion 11 is located inside in the radial direction. As shown in FIGS. 3 and 4, the label tape 10 </ b> A is fed from the lower side of the tape roll 10 with the printing surface of the label portion 11 facing upward, and is conveyed (in the forward direction) by the platen roller 66. You. Then, at a position where the thermal head 51 and the platen roller 66 are opposed to each other, the label tape 10A is moved forward (corresponding to the first direction) in the horizontal direction (corresponding to the first direction) by the platen roller 66 (to one side in the first direction). (Equivalent). The thermal head 51 forms a desired print on the label portion 11 of the conveyed label tape 10A. In FIG. 4, the above-described transport path of the label tape 10 </ b> A fed and transported from the tape roll 10 is indicated by a two-dot chain line. Further, the forward direction during the transport is indicated by an arrow in FIG.

  As shown in FIGS. 4 and 5, the cutting blade 32 is disposed above the discharge unit 6 with a gap through which the label tape 10A can pass when the upper cover 5 is closed. The side cross-sectional shape of the cutting blade 32 is substantially V-shaped, and the lower end (tip) is sharp. The user grips the label tape 10A printed on the label portion 11 and discharged from the discharge portion 6, and cuts the release paper 12 between the printed label portion 11 and the unprinted label portion 11 following the label portion. It hits the blade 32 and cuts it. Thus, a tape fragment of the label tape 10A having the printed label portion 11, that is, a print label is generated.

<Internal structure of front end of label making device>
Next, the internal structure of the front end of the label producing apparatus 1 according to the main part of the present embodiment will be described with reference to FIGS. As shown in FIGS. 4 to 6, a pair of right and left mounting frames 45, 45 are installed below the front end of the upper cover 5 (see also FIGS. 2 and 3). At the lower part of the front part of the mounting frame 45, two protruding pieces 45A, 45A are provided. A cut-out recess 46 is provided between the projecting pieces 45A, 45A to be loosely fitted to the shaft end of the roller shaft 66A of the platen roller 66 from above.

  A support plate 53 is mounted between the upper ends of the pair of mounting frames 45. The heat radiation member 52 is attached to the lower side of the support plate 53 (corresponding to one side in the second direction). The thermal head 51 is attached to the lower end of the heat radiating member 52. That is, the heat radiating member 52 supports the thermal head 51. The heat generated by the thermal head 51 during printing is transmitted to the heat radiating member 52 and radiated.

<Guiding member>
By the way, when the platen roller 66 is driven to rotate forward, the label tape 10A is transported in the forward direction (see the two-dot chain line with arrow in FIG. 4 and the two-dot chain line with left arrow in FIG. 6). On the other hand, when the platen roller 66 is driven to rotate in the reverse direction, the label tape 10A is transported in the reverse direction opposite to the forward direction (see a two-dot chain line with a rightward arrow in FIG. 6). When printing is performed on the label tape 10A, the label tape 10A is transported in the forward direction. When positioning the label tape 10A before starting printing, the label tape 10A is transported in the reverse direction. In the label producing apparatus 1, the guide member 60 is provided adjacent to the front side (in other words, the downstream side in the transport direction) of the heat radiation member 52. The guide member 60 provides guidance when the label tape 10A is transported in the forward and reverse directions.

<Detailed structure of guide member>
The detailed structure of the guide member 60 will be described with reference to FIGS.

  As shown in FIG. 6, the guide member 60 is attached to the lower surface of the support plate 53. The guide member 60 has a guide surface 61 for guiding the label tape 10A on the lower surface side. The guide surface 61 is an inclined surface that rises toward the front. The guide member 60 has an extension 62 extending toward the thermal head 51 at the rear side of the guide surface 61 (corresponding to the other side in the first direction) and near the lower end. . The extension portion 62 is formed in a flat plate shape having substantially the same thickness as the thermal head 51. The lower surface 62a of the rear end of the extension 62 and the lower surface 51a of the thermal head 51 are configured so that the vertical position is substantially the same. Thereby, the label tape 10A is smoothly transported in both the forward direction and the reverse direction along the guide surface 61 and the lower surface 62a of the extension portion 62.

<Generation of dimensional variation>
As described above, the lower surface 62a of the extending portion 62 of the guide member 60 and the lower surface 51a of the thermal head 51 are configured so that the positions in the vertical direction are aligned. However, in practice, the radiating member 53 and the guide member 60 each have a dimensional variation (hereinafter, referred to as a dimensional variation) due to an error in component manufacturing. Also, an assembling error when assembling the heat radiating member 53 and the guide member 60 affects the dimensional variation. Therefore, the lower surface 62a of the extension 62 of the guide member 60 and the lower surface 51a of the thermal head 51 may be displaced in the vertical direction due to the dimensional variation due to the above error. For example, when the vertical dimension of the heat radiating member 52 is larger than the original design reference value by a predetermined length (corresponding to a first predetermined length), the lower surface 51 a of the thermal head 51 is Project below. In this case, when the label tape 10A is returned to the rear side by the reverse conveyance, it interferes with the step (step in the riding direction) between the thermal head 51 and the extending portion 62 caused by the protrusion, and the smooth conveyance is hindered. May be done.

  Therefore, in the present embodiment, in the guide member 60, the upper surface (corresponding to the other side in the second direction) of the extension portion 62 (upper surface) contacts the lower surface 52 a of the front end of the heat radiation member 52. The vicinity of the rear end of the extending portion 62 is formed so as to be deformable in the up-down direction. FIG. 7 shows a detailed structure of the extending portion 62. However, FIG. 7 is a perspective view of a state in which the guide member 60 is turned upside down for convenience of explanation.

  As shown in FIG. 7, in the guide member 60, the extending portion 62 has a configuration in which a plurality of small tongue pieces 62A extending in the front-rear direction are arranged in a comb shape along the left-right direction. The rear end of the small tongue piece 62A is vertically deformable. In addition, a concave portion 64 (see also FIG. 6 and FIG. 8 to be described later) for promoting the deformation of the extending portion 62 is formed at a base above the extending portion 62. Further, the extending portion 62 includes a curved portion 63 near the rear end of the lower surface 62a. In other words, the curved portion 63 is a portion where the rear edge of the lower surface 62a of the extension portion 62 is rounded. A plurality of ridges 61a in the front-back direction are arranged on the guide surface 61 along the left-right direction. When the label tape 10A is transported, the lower end of the ridge 61a guides the label tape 10A, so that the contact area is reduced and the label tape 10A is transported smoothly.

<Behavior when dimensional variation occurs>
The behavior of the extending portion 62 configured as described above when the dimensional variation occurs will be described with reference to FIGS.

<When there is no variation>
In the present embodiment, at the time of manufacturing the label producing apparatus 1, the heat radiating member 52 and the thermal head 51 are first attached to the support plate 53, and then the guide member 60 is attached to the support plate 53. On the premise of such an assembling order, first, the dimensional variation does not occur (or the variation does not affect the protrusion), and the lower surface 51a of the thermal head 51 and the extension portion 62 FIG. 8A shows a case where the vertical position with the lower surface 62a substantially coincides. In this case, as described above, when the label tape 10 </ b> A is returned to the rear side by the reverse conveyance, the label tape 10 </ b> A is smoothly conveyed from the extending portion 62 of the guide member 60 to the thermal head 51 side.

<When the heat radiation member is large>
On the other hand, due to the dimensional variation, the vertical dimension of the heat radiating member 52 is larger than the design reference value by the predetermined length, and the vertical position of the lower surface 51 a of the thermal head 51 is the vertical position of the lower surface 62 a of the extension 62. It may be lower than that. In this case, unlike FIG. 8A, as described above, the lower surface 51a of the thermal head 51 protrudes below the lower surface 62a of the rear end of the extending portion 62 as it is, as described above, and the reverse direction is smooth. There is a possibility that conveyance will be hindered.

  At this time, in the present embodiment, the extending portion 62 is configured to be deformable as described above. In particular, the position of the front end 52b of the heat dissipating member 52 in the front-rear direction (horizontal direction in the drawing) is more than the predetermined size t (see FIG. 3) than the position in the front-rear direction (horizontal direction in the drawing) of the rear end 62c of the extension portion 62a. 8 (a)) is located on the front side. In other words, the front end 52b of the heat radiating member 52 and the rear end 62c of the extending portion 62 overlap by the dimension t in the front-rear direction. For this reason, at the time of the above-mentioned assembling, the lower surface 52a of the front end of the heat-dissipating member 52 that has been previously assembled pushes the extending portion 62 of the guide member 60 that is to be assembled later, so that FIG. The extension 62 can be deformed to the lower side as shown in FIG. In this example, as a result of this deformation, the rear end of the upper surface 62b of the extension portion 62 is located above the lower surface 51a of the thermal head 51, and the lower surface 62a of the rear end of the extension portion 62 Is located below the lower surface 51 a of the thermal head 51. The lower end portion (the curved portion 63 in this example) of the extending portion 62 projects downward by, for example, 0.15 mm from the lower surface 51a of the thermal head 51. As a result of such a deformation, the influence of the above-mentioned step (step in the riding direction) can be eliminated, so that the above-mentioned inhibition of conveyance is suppressed, and smooth reverse conveyance of the label tape 10A is ensured as shown in the figure. be able to.

<When the heat radiation member is small>
Further, due to the above-mentioned dimensional variation, for example, the vertical dimension of the heat radiating member 52 is smaller by a predetermined length (corresponding to a second predetermined length) than the design reference value, and as shown in FIG. There is a case where the vertical position of the lower surface 51a is higher than the vertical position of the lower surface 62a of the extension 62.

  In this case, in the above configuration of the present embodiment, the rear end of the upper surface 62b of the extending portion 62 is separated from the lower surface 52a of the front end of the heat radiation member 52, and the upper surface 62b of the extending portion 62 Is located above the lower surface 51 a of the thermal head 51. The lower end (the lower surface 62a in this example) of the extending portion 62 is located, for example, 0.6 mm below the lower surface 51a of the thermal head 51.

  In this case, when the label tape 10A is returned to the rear side (the right side in the figure) by the reverse conveyance, a reverse step (a step in the downward direction) occurs between the extending portion 62 and the thermal head 51. The reverse step does not hinder the conveyance of the label tape 10A, and can ensure smooth conveyance.

  Also, as shown in FIG. 8C, when the label tape 10A is transported in the forward direction, the rear label tape 10A can be transported smoothly without being caught by the extension portion 62. In particular, since the curved portion 63 is provided near the rear end of the lower surface 62a of the extension portion 62, smooth conveyance can be performed more reliably.

<Effects of Embodiment>
As described above, in the present embodiment, the guide member 60 extending toward the thermal head 51 is provided adjacent to the front side (in other words, the downstream side in the transport direction) of the heat radiation member 52 supporting the thermal head 51. Guide when the label tape 10A is transported in the reverse direction. At this time, the extension portion 62 is provided on the rear side of the guide member 60 and near the lower end, and the vicinity of the rear end of the extension portion 62 is configured to be vertically deformable. The vertical position of the lower surface 62 a of the extension 62 is substantially the same as the vertical position of the lower surface 51 a of the thermal head 51. Thereby, when the vertical dimension of the heat radiating member 52 is larger than the design reference value, the extending portion 62 is deformed downward. As a result, it is possible to reduce the level difference between the extending portion 62 and the thermal head 51 which may occur at the time of the reverse transport, and to smoothly transport the label tape 10A in the reverse direction.

  Further, in the present embodiment, especially when the vertical dimension of the heat radiation member 52 is larger than the design reference value and the lower surface 51a of the thermal head 51 is located below the lower surface 62a of the extension portion 62, the heat radiation member The extension 62 is deformed downward by the front end 52 b of the thermal head 52, and the lower surface 62 a of the rear end of the extension 62 is positioned lower than the lower surface 51 a of the thermal head 51. Thereby, the step difference between the extending portion 62 and the thermal head 51, which may occur during the reverse transport, can be reliably reduced, and the label tape 10A can be transported smoothly in the reverse direction. Also, the rear end of the upper surface 62b of the extension 62 is located above the lower surface 51a of the thermal head 51. Therefore, even when the label tape 10A is transported in the forward direction, the label tape 10A is It can be smoothly transported without being caught by the extension portion 62.

  Further, in the present embodiment, particularly, when the vertical dimension of the heat radiating member 52 is smaller than the design reference value and the lower surface 51a of the thermal head 51 is located above the lower surface 62a of the extending portion 62, The rear end of the upper surface 62b of the portion 62 is separated from the front end of the lower surface 52a of the heat radiating member 52, and the upper surface 62b of the rear end of the extending portion 62 is located above the lower surface 51a of the thermal head 51. . In this case, during the reverse transport, the reverse step between the thermal head 51 and the extension portion 62 does not hinder the transport of the label tape 10A, so that smooth transport can be ensured. The tape 10A can be smoothly transported without being caught on the extension portion 62.

  In the present embodiment, in particular, the extending portion 62 includes a curved portion 63 near the rear end of the lower surface 62a. As a result, the following effects are obtained.

  In other words, as described above, when the vertical dimension of the heat radiating member 52 is small, the reverse step occurs during the reverse transport. This means that a step in the running direction occurs between the thermal head 51 and the extension 62 when viewed in the forward transport. In the present embodiment, by providing the curved portion 63 on the lower surface 62a near the rear end of the extension portion 62, an invitation shape is formed when the label tape 10A is transported in the forward direction. Thus, the label tape 10A can be smoothly transported in the forward direction.

  In the present embodiment, in particular, the extension portion 62 is configured by arranging a plurality of small tongue pieces 62A in a comb shape. Thereby, the strength of the extension portion 62 of the guide member 60 can be made relatively small, and it can be easily deformed.

  In the present embodiment, in particular, the guide member 60 has a concave portion 64 on the upper side of the extending portion 62 for promoting the deformation of the extending portion 62. As described above, by forming the concave portion 64 above the extending portion 62 of the guide member 60, the strength in the vicinity thereof can be made relatively small, and the deformation of the extending portion 62 can be promoted.

  In the present embodiment, in particular, in the roll storage unit 4, the tape roll 10 is a tape label tape 10 </ b> A in which a plurality of label units 11 are discretely adhered on a release paper 12, and the print surface of the label unit 11 is It is wound so as to be on the radial inside. This has the following significance.

  If the label tape 10A is a so-called die-cut type tape in which a plurality of label portions 11 are discretely adhered on a release paper 12, the above-described extension portion 62 and the thermal head There is a possibility that the label portion 11 is peeled off from the release paper 12 due to a step with respect to 51. In particular, such a tendency is remarkable when the label tape 10A is wound as a tape roll such that the printing surface of the label portion 11 is on the inner side in the radial direction.

  In the present embodiment, as described above, the extension 62 of the guide member 60 is deformed to reduce the step, so that the label 11 can be prevented from peeling from the release paper 12.

<Others>
In the above description, the label producing apparatus 1 shows a case where the thermal head 51 and the heat radiating member 52 are installed on the upper cover 5 side, and the platen roller 66 is installed on the housing body 3 side. Absent. That is, for example, even when the thermal head 51 and the heat radiating member 52 are installed on the housing body 3 side and the platen roller 66 is installed on the upper cover 5 side, the present invention can be applied, and the same effects as above can be obtained.

  In the above description, the case where the die-cut type label tape 10A is used has been described as an example, but the present invention is not limited to this. That is, an indefinite-length label tape, in which a print label is prepared by cutting the label into desired individual label lengths after printing, can be used. In this case, the same effect as described above can be obtained.

  Further, in the above description, when there is a description such as “identical”, “equal”, “different” or the like, the description is not strictly meaning. That is, the terms “identical”, “equal”, and “different” mean that “substantially the same”, “substantially the same”, and “substantially different” are acceptable in terms of design and manufacturing tolerances and errors. .

  In addition to the methods described above, the methods according to the above-described embodiments may be appropriately combined and used.

  Although not specifically exemplified, the present invention is embodied with various changes without departing from the spirit thereof.

1 Label making device (printing device)
2 Case (frame)
DESCRIPTION OF SYMBOLS 10 Tape roll 10A Label tape 11 Label part 12 Release paper 51 Thermal head 52 Heat dissipation member 60 Guide member 62 Extension part 62a Small tongue piece 63 Curved shape part 64 Depression 66 Platen roller (conveyance roller)

Claims (7)

A printing device for printing on a label tape,
Frame and
A transport roller provided on the frame and capable of transporting the label tape in both the forward and reverse directions along a predetermined transport path,
A thermal head that performs desired printing on the label tape that is transported to one side in a first direction along the transport path by the transport roller;
A heat dissipating member provided on the frame and supporting the thermal head on one side in a second direction substantially orthogonal to the first direction;
A guide member provided on the frame adjacent to the one side in the first direction than the heat dissipation member, for guiding the label tape;
Has,
The guide member is
On the other side in the first direction and near the end on the one side in the second direction, there is provided an extending portion which is formed in a flat plate shape having substantially the same thickness as the thermal head and extends toward the thermal head. Prepare,
The extension portion,
Near the end on the other side in the first direction is formed so as to be deformable in the second direction,
And,
The other surface in the second direction is in contact with the one surface in the second direction of the one end in the first direction of the heat radiating member, and the second surface in the second direction is in contact with the second surface in the first direction. A printing apparatus, wherein a surface on one side in two directions is provided at substantially the same position in the second direction as a surface on one side in the second direction of the thermal head. When the dimension of the heat dissipation member in the second direction is larger than a design reference value by a first predetermined length,
The extension portion is deformed by being pushed to one side in the second direction at an end of the heat dissipation member on one side in the first direction,
The end of the extension portion on the other side in the second direction in the surface on the other side in the second direction is located on the other side in the second direction relative to the surface on the one side in the second direction of the thermal head,
The other end in the first direction of the surface of the extension portion on the one side in the second direction is located on the one side in the second direction with respect to the surface on the one side in the second direction of the thermal head. The printing apparatus according to claim 1, wherein: When the dimension of the heat radiation member in the second direction is smaller than the design reference value by a second predetermined length,
A surface on the other side in the second direction of the end on the other side in the first direction of the extension portion is separated from a surface on the one side in the second direction of an end on the one side in the first direction of the heat dissipation member. 3. The printing apparatus according to claim 1, wherein the thermal head is located on the other side in the second direction with respect to the surface on the one side in the second direction. 4. The extension portion,
4. The printing apparatus according to claim 1, further comprising a curved portion near one end in the first direction on a surface on one side in the second direction. 5. The printing device according to any one of claims 1 to 4, wherein the extension portion is configured by arranging a plurality of small tongue pieces in a comb shape. The guide member further comprises:
The printing apparatus according to any one of claims 2 to 5, further comprising a concave portion on the other side in the second direction of the extending portion for promoting the deformation of the extending portion. . The label tape,
A plurality of label portions, each of which has been previously cut into a predetermined shape, are discretely attached to a release paper by an adhesive layer,
The printing device further comprises:
7. A roll storage unit for rotatably storing a tape roll around which the label tape is wound so that the printing surface of the label paper is radially inward. The printing device according to any one of the preceding claims.

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