JP3397994B2 - Peeling device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, a peeling device (hereinafter referred to as "peel device") for peeling a release paper from a tape with a release paper.

[0002]

2. Description of the Related Art As a conventional peeling device, Japanese Patent Laid-Open No. 5-1
The one described in Japanese Patent No. 69749 is known. This peeling device is provided as an accessory to the tape printing device, and the corners of the tape with release paper are sandwiched between the punch and the die to partially permanently deform the tape with release paper. ing. In this case, the release paper of the release paper-attached tape and the base tape have different restored shapes due to the permanent deformation due to the difference in material, and therefore the punching drive causes the release paper to be slightly released from the base tape. Therefore, by using this portion as a clue, the release paper can be peeled off from the tape.

[0003]

In such a conventional peeling device, the punch and the die are abutted in consideration of the rigidity and difference between the base tape and the release paper and the adhesive force of the adhesive to the release paper. The area and abutting depth had to be determined, and the reliability of peeling was poor, which was not satisfactory. Further, since the base tape is permanently deformed together with the release paper, a so-called bending tendency is generated in the base tape, unevenness is generated in the base tape adhered to the object to be adhered, or the base tape is adhered from the object to be adhered. There was a problem that the tape was easily peeled off.

An object of the present invention is to provide a peeling device which can carry out the work of peeling the release paper from the adhesive tape with high reliability and efficiency.

[0005]

The peeling device of the present invention is an adhesive formed by laminating a base tape having one surface coated with an adhesive and a release paper attached to the base tape via the adhesive. In a peeling device that partially peels the release paper from the tape,
A rotating body that is rotated by a drive source, a peeling protrusion that is provided on the end face of the rotating body, and that makes rotational contact with the base tape side of the end portion of the adhesive tape to bend and unbend it, and sticks toward the peeling protrusion. Holding means for guiding the insertion of the tape and holding the end portion of the adhesive tape leaving a free end facing the peeling projection , the holding means being a side of the end portion of the adhesive tape.
Side that guides the insert along the end face of the rotating body
It is characterized by having a guide wall .

According to this structure, when the end portion of the adhesive tape is made to face the peeling protrusion that rotates through the rotating body through the holding means, the free end of the adhesive tape is bent and released by the peeling protrusion. repeat. At that time, since the peeling protrusion is in rotational contact with the base tape side of the adhesive tape, the free end of the adhesive tape bends with the base tape side as the outside and the release paper side as the inside. Since the radius of curvature (R) due to this bending is small on the side of the release paper and large on the side of the base tape, interlayer slip occurs between the base tape and the release paper against the adhesive.
Further, due to this interlayer slip, the tip of the release paper slightly projects from the tip of the base tape. For this reason, when the peeling protrusions bend the adhesive tape to the maximum extent and then separate from the adhesive tape, the tips of the peeling protrusions first separate from the base tape and then separate from the release paper with a slight time lag. When the tip of the peeling protrusion is separated from the base tape, the tip of the peeling protrusion holds the release paper, and the (free end of) the base tape is in a free state and is bent from the original state with the adhesive. I try to restore it to a straight line. At that time, when the spring force for restoring the base tape exceeds the adhesive force of the adhesive to the release paper, the release paper peels from the base tape. Even if it is not peeled off, the adhesive strength of the adhesive to the release paper becomes small,
By repeating this operation, the release paper is released from the base tape. In addition, this bending is caused by (the free end of) the base tape.
Is in the area of elastic deformation for the release paper (the free end of)
If it is within the permanent deformation area, the base tape will return to its original shape after the flexure is released, but the release paper will remain bent, and the release paper after peeling may be reattached to the base tape. Absent. On the other hand, since the peeling protrusion is provided on the end face of the rotating body, the end portion of the base tape can be made sufficiently deep toward the center of the rotating body, and the peeling protrusion is provided on the peripheral surface of the rotating body. In comparison with the above, the entire structure can be made compact. Also, the edge of the adhesive tape is
Peel off the release paper most easily, so peel off the corners.
When rotating the release protrusions in rotation, use adhesive tape normally.
It is necessary to face the peeling protrusions at an angle. But this configuration
According to, the adhesive tape inserted toward the center of the rotating body
Rotate the peeling protrusion to one corner of the edge of the
Can be made. In other words, the adhesive tape on the peeling protrusion
Even when the edges are facing in parallel, the corners are not in rolling contact with the peeling protrusions.
Can be made. Therefore, Turkey to simplify the device configuration
And the trouble of inserting the adhesive tape at an angle
Can be eliminated.

[0007] In this case, it is preferable that the peeling projection is rotationally contacted with the end of the adhesive tape continuously with respect to the free end of the adhesive tape from its tip to its base.

With this structure, it is possible to gradually bend the free end of the adhesive tape from a portion having a small attachment area to a portion having a large attachment area. That is, the peeling operation is performed from the portion that is easily peeled to the portion that is hard to peel. The adhesive force of the pressure-sensitive adhesive on the release paper is relatively small, and when considering only the adhesive force, it is in a state of easy peeling, but it is difficult to create a trigger for peeling. Therefore,
By performing the peeling operation from the portion that is easy to peel to the portion that is hard to peel, the trigger for peeling can be easily made, and peeling of the release paper at the free end of the adhesive tape can be promoted. In addition, when the tip of the adhesive tape faces the center of the rotating body, the form of this rotating contact is such that the peeling protrusion (the contact surface thereof) is inclined or curved with respect to the radial direction of the rotating body, and peeling is performed. When the protrusion (the contact surface of the protrusion) is extended in the radial direction of the rotating body,
This is achieved by facing the tip of the adhesive tape toward a position eccentric from the center of the rotating body. On the other hand, when the tip of the adhesive tape is made to face in the axial direction of the rotating body, the peeling projection (contact surface of the peeling projection) is inclined or curved.

[0009]

[0010]

In these cases, the holding means may have a pair of surface guide walls for guiding the ends of the adhesive tape so that the ends are curved and inserted in the insertion direction.
preferable.

According to this structure, the end portion of the adhesive tape is curved, so that the adhesive tape is held by the holding means by rigidity. That is, the adhesive tape can be held by simply inserting it into the holding means without the need for any special parts such as pressing the adhesive tape. As a result, the adhesive tape can be smoothly inserted and pulled out from the holding means.

In these cases, it is preferable that the holding means is open to the outside at a portion facing the side guide wall.

According to this structure, the peeled adhesive tape can be easily pulled out from the holding means in the direction opposite to the direction of the side guide wall. Further, unlike the case where the adhesive tape is pulled out from the curved holding means in the opposite direction to the insertion, it is possible to prevent the peeled release paper from being re-attached. Moreover, various adhesive tapes can be inserted, that is, peeled off, regardless of the tape width.

In these cases, at least one of the pair of surface guide walls has the free end at the corner of the end portion of the adhesive tape at the tip of the release protrusion side of the surface guide wall located on the release paper side of the adhesive tape. It is preferable that a hypotenuse portion for receiving this is provided.

According to this structure, by simply inserting the adhesive tape into the holding means, it is possible to face the peeling projection with the corner portion of the edge of the adhesive tape which is most easily peeled as the free end.

In this case, it is preferable that the extremities of the peeling projections are formed parallel to the opposite hypotenuses.

With this structure, the corners (free ends) of the ends of the adhesive tape can be uniformly and sufficiently bent, and the peeling function can be stabilized.

Although it depends on the material of the base tape, specifically, the gap between the tips of the peeling protrusions facing in parallel and the hypotenuse is t ≦ gap, where t is the thickness of the adhesive tape. ≤
It is preferably 10t.

In these cases, the peeling projection is composed of a plurality of peeling projection pieces arranged substantially radially in the rotation direction on the end face of the rotating body. It is preferable that the short peeling projection pieces are mixed.

According to this structure, the long peeling projection piece bends the entire free end of the adhesive tape, and the short peeling projection piece bends the free end of the adhesive tape. become. For this reason, in the adhesive tape that is difficult to peel off, the long peeling projection pieces weaken the adhesive force of the adhesive to the entire release paper at the free end, and the short peeling projection pieces concentrate the tip portion of the free end that is easier to peel off. Try to peel it off. Therefore,
The peeling can be easily triggered, and the peeling of (the release paper of) the adhesive tape can be further promoted.

In these cases, it is preferable to further include drive control means for driving the drive source before the tip of the adhesive tape is inserted into the rotation locus of the peeling projection. Then, more preferably, the drive control means drives the drive source by detecting the tip of the adhesive tape which is inserted into the holding means.

According to this structure, since the rotating body starts rotating through the drive source during the insertion of the adhesive tape into the holding means, the adhesive tape is already peeled off when the end of the adhesive tape faces the peeling protrusion. The protrusion is rotating. That is, the end of the adhesive tape is gradually inserted into the rotation trajectory of the rotating peeling protrusion, and begins to be bent from the tip of the free end.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION A case where a peeling device (peel mechanism) according to an embodiment of the present invention is applied to a tape printer will be described below with reference to the accompanying drawings. This tape printing device prints (prints) desired characters or figures on a printing tape (adhesive tape) with release paper, and cuts the printed printing tape into a predetermined length to print a label. It constitutes a tape for use. Further, this tape printing device has a function of shaping and cutting the corners of the label-shaped printing tape into a round shape, and a function of partially peeling the release paper at the corners of the label-shaped printing tape. .

FIG. 1 is a perspective view of the tape printer, and FIG. 2 is a plan view thereof. As shown in both figures, the tape printing apparatus 1 includes a device case 2 for housing components, an input unit 3 having a plurality of input keys 3a arranged in the front half of the device case 2, and an apparatus case 2 The display unit 4 and the opening / closing lid 5 arranged in the latter half portion are provided. A tape cartridge 6 containing a printing tape T is mounted inside the opening / closing lid 5, and the mounting of the tape cartridge 6 can be confirmed from the outside through a transparent window 7 formed in the opening / closing lid 5. ing.

Further, inside the opening / closing lid 5, a print head 8 which is located near the tape cartridge 6 and constitutes a printing means, and which feeds the tape cartridge 6 facing the print head 8 is fed to the tape cartridge 6. Platen rollers 9 constituting the means are respectively arranged. Printing tape T
Is fed from the tape cartridge 6 by the platen roller 9 and further fed to the outside of the apparatus while being printed by the print head 8. Further, the cutter mechanism 10 is built in the device case 2 near the left side of the tape cartridge 6, and the printing tape T is provided outside the device on the left side of the device case 2 adjacent to the cutter mechanism 10. A tape discharge port 11 for sending out is formed. While the printing tape T is being printed, the tape ejection port 1
However, when the printing is completed, the feeding operation of the printing tape T is stopped, and at the same time, the cutter mechanism 10
Is activated and the printing tape T is moved to a predetermined length (printed portion +
Cut to the margin.

On the other hand, inside the device case 2 behind the display unit 4, the tape processing device 12 for shaping the end portion of the printing tape T into a round shape and peeling the release paper c from the printing tape T is cut. Is built in. Further, a tape introduction port 13 for feeding the end portion of the printing tape T to the tape processing device 12 is formed on the upper surface of the device case 2 corresponding to the tape processing device 12. The tape inlet 13
The shaping / cutting inlet 14 inclined toward the inside of the apparatus case 2 and the peeling inlet 15 provided so as to cross the shaping / cutting inlet 14 are integrally formed. When the printing tape T is inserted into the shaping cutting inlet 14, the tape processing device 12 is driven to shape and cut the corners of the end portion of the printing tape T into a round shape. Similarly, when the printing tape T is inserted into the peeling inlet 15, the tape processing device 1
2 drives to peel off the release paper c at the corner of the end of the printing tape T.

In this tape printer 1, first, the opening / closing lid 5 is opened, the tape cartridge 6 is mounted in the apparatus case 2, and the opening / closing lid 5 is closed. Next, the power switch (not shown) is operated to turn on the power, and the characters to be printed are input from the input unit 3. If necessary, the input character string is converted into kana-kanji characters, and when a predetermined input key 3a is operated to instruct printing, the print head 8 prints on the printing tape T fed from the tape cartridge 6. In parallel with the printing, the printing tape T is sent by the platen roller 9 and sent out from the tape discharge port 11 to the outside. When the printing is completed, the printing tape T
Is stopped, and the cutter mechanism 10 is driven to cut the printing tape T.

On the other hand, when the cut printing tape T is inserted into the shaping cutting inlet 14, the corner of the printing tape T is shaped and cut into a round shape. The opening width of the shaping cutting introduction port 14 corresponds to the printing tape T having the maximum width, and when the printing tape T having the maximum width is inserted therein, both corners are shaped and cut at the same time. When the printing tape T having a width narrower than this is inserted, the printing tape T is laterally moved in the shaping / cutting inlet 14 so that both corners are shaped and cut one by one. Further, if the front and rear of the printing tape T are reversed and the above-mentioned insertion is performed, the four corners of the printing tape T are shaped and cut. Further, when the printing tape T is inserted into the peeling introduction port 15 without the premise of shaping cutting, the peeling paper c at the corner of the printing tape T is peeled off at the end. Then, when the release paper c is peeled off from the printing tape T using the peeled portion as a clue, the printing tape T can be attached as a label to the attachment target.

The printing tape T is an adhesive tape with so-called release paper, and includes a base tape a having a back surface coated with an adhesive b and a release paper attached to the base tape a via the adhesive b. c (see FIG. 9). The base tape a is made of vinyl chloride resin, polypropylene resin or the like, and the release paper c is made of silicon-treated paper so that it can be easily released. The printing tape T has a tape width of, for example, 24 mm, 18 mm, 12 mm, and 9 mm, and various printing tapes T having different widths are accommodated in the tape cartridge 6 in a wound state. It is provided with the tape cartridge 6.

Next, the tape processing device 12 will be described in detail with reference to FIGS. 3 is a front view around the tape processing device 12, FIG. 4 is a plan view thereof, and FIG. 5 is a right side view thereof. As shown in these figures, the tape processing device 12 includes a motor (drive source) 21 that can rotate in the forward and reverse directions.
And a trim mechanism 2 for shaping and cutting the end portion of the printing tape T
2, a peeling mechanism 23 for partially peeling the release paper c from the printing tape T, and a clutch mechanism 24 for transmitting the power of the motor 21 to the trim mechanism 22 and the peeling mechanism 23.
And a main frame 25 and a sub frame 26 that support these components. The motor 21 is
When the trim switch 61, which will be described later, is turned on, it is rotated normally, and when the peel switch 91 is turned on, it is rotated backward. Then, the rotational power of the motor 21 is branched and transmitted to the trim mechanism 22 and the peel mechanism 23 via the clutch mechanism 24. At that time, the clutch mechanism 24 is discontinuously triggered by the forward / reverse rotation of the motor 21, transmits power to the trim mechanism 22 and the peel mechanism 23 when the motor 21 is normally rotating, and peels when the motor 21 is reversely rotating. Mechanism 23
Power is transmitted only to.

The main frame 25 has a lower frame portion 31.
And an upper frame portion 32 arranged in parallel with the lower frame portion 31 with a gap, a connecting frame portion 33 connecting the lower frame portion 31 and the upper frame portion 32, and arranged in parallel with the connecting frame portion 33. And the back frame portion 34. Further, the sub-frame 26 includes the lower frame portion 31.
It is arranged in the middle of the upper frame portion 32 and in parallel with them. The motor 21 is connected to the lower frame 3
1, the trim mechanism 22 is supported by the connecting frame portion 33 and the back frame portion 34, and the peel mechanism 23 is supported by the lower frame portion 31 and the sub-frame 26.

The motor 21 is attached to the lower frame portion 31 from below, and its drive shaft 27 extends through the lower frame portion 31 to the vicinity of the upper frame portion 32. A clutch mechanism 24 is incorporated in the drive shaft 27.

The clutch mechanism 24 includes an input side clutch 41 fixed to the drive shaft 27 of the motor 21 and an output side clutch 42 rotatably and axially slidably supported by the drive shaft 27 of the motor 21. It has and. The input side clutch 41 is disposed on the lower frame portion 31 side of the drive shaft 27,
A gear portion 43 that transmits power to the peel mechanism 23 and an input-side face ratchet 44 that projects upward from an end surface of the gear portion 43 are integrally formed. Output side clutch 42
Is provided on the side of the upper frame portion 32 of the drive shaft 27 and transmits the power to the trim mechanism 22. The output side face ratchet 46 projects downward from the end face of the worm.
And are integrally formed. Although not shown in the drawing, a highly viscous oil such as grease is interposed between the worm (output side clutch 42) 45 and the drive shaft 27, and this grease causes the worm to rotate as the drive shaft 27 rotates. The (output side clutch 42) 45 is adapted to rotate together.

The input-side face ratchet 44 and the output-side face ratchet 46 are provided so as to face each other, and the trim mechanism 22 is provided by bringing them into close contact with each other (engagement).
When the power is transmitted to the trim mechanism 22 and the engagement between the two is released, the power to the trim mechanism 22 is shut off. Specifically, when the input side face ratchet 44 and the output side face ratchet 46 are engaged with each other and the input side face ratchet 44 rotates forward, the engagement state is maintained and power is transmitted. When it rotates in the reverse direction, the input side ratchet 44 repels the output side ratchet 46 to release the engaged state and cut off the transmission of power.

On the other hand, a worm wheel 47 having a function of an idle gear on the trim mechanism 22 side is meshed with the worm 45. The worm wheel 47 is formed integrally with a crank wheel 56 described later,
It is rotatably supported by a shaft member 48 extending upward from the connection frame portion 33. Further, a stopper 49 is provided on the upper frame portion 32 so as to project downward coaxially with the drive shaft 27, and a small diameter portion of the stopper 49 is loosely inserted in an upper end portion of the worm 45. The stopper 49 regulates the upward movement of the worm 45, whereby the meshed state of the worm 45 and the worm wheel 47 is always maintained. A washer or the like may be attached to the small diameter portion of the stopper 49 to finely adjust the movement restricting position of the worm 45.

In the clutch mechanism 24 thus constructed, when the drive shaft 27 rotates in the normal direction via the motor 21, the input side clutch 41 rotates in the same direction, and the output side clutch 42 changes the viscosity of the grease. Receive and go around.
At this time, since the worm 45 of the output side clutch 42 meshes with the worm wheel 47, the worm wheel 47 tries to rotate, but on the contrary, receives a reaction force from the worm wheel 47 receiving the load of the trim mechanism 22. . For this reason, the output side clutch (worm 45) 42 moves downward on the drive shaft 27 and slowly hits the input side clutch 41 based on the screw pair of both. Input side clutch 41 to output side clutch 42
When it hits, the input side face ratchet 44 and the output side face ratchet 46 are engaged, the output side clutch 42 is connected to the input side clutch 41, and the rotational power of the motor 21 is transmitted to the output side clutch 42 and the worm wheel 47. Is transmitted to the trim mechanism 22 via.

On the contrary, when the drive shaft 27 rotates in the reverse direction via the motor 21, the input side ratchet 44 causes the output side ratchet 46 to be repelled, and conversely to the above, the screw pair of the worm 45 and the worm wheel 47 is reversed. The output side clutch (worm 45) 42 is
While slowly rotating, it moves upward on the drive shaft 27 and hits the stopper 49. By this series of operations, the output side clutch 42 is completely separated from the input side clutch 41, and the power transmission to the trim mechanism 22 is cut off.
On the other hand, the output side clutch 42 that hits the stopper 49
Stops its rotation while receiving the viscous resistance of grease. Power is transmitted to the peeling mechanism 23 by the gear portion 43 of the input side clutch 41 in both cases of forward and reverse rotation of the drive shaft 27.

As described above, the clutch mechanism 2 of this embodiment
According to FIG. 4, by combining the clutch composed of the input side face ratchet 44 and the output side face ratchet 46 and the worm gear composed of the worm 45 and the worm wheel 47, the connection and disconnection of both face ratchets 44 and 46 can be controlled. It can be done automatically by reverse rotation. Of course, as in the conventional case, the output side face ratchet 46 is connected to the input side face ratchet 44.
Both face ratchets 44, 46 can be interrupted by using a spring or a push rod that is pressed against, but unlike when using a spring, both face ratchets 44, 46 are completely separated at the time of disconnection. It is possible to prevent bullet noise (noise) generated in both face ratchets 44, 46 and wear of both face ratchets 44, 46. Also,
Unlike the case of using the push rod, the mechanism for operating it can be omitted. Therefore, with a simple structure, it is possible to reduce operating noise and improve durability.

The trim mechanism 22 will be described in detail later.
The operating load of the peeling mechanism 23 is large even when it is not disconnected, while the operating load of the peeling mechanism 23 is extremely small. Therefore, when the peeling mechanism 23 is peeled off, the load of the motor can be reduced by interrupting the transmission of power to the trim mechanism 22. Although the cost is increased, the clutch mechanism 2 of this kind is also provided on the peel mechanism 23 side.
4 may be provided.

Next, with reference to FIG. 11 and FIG. 12, another modified example of the light engaging means replacing the highly viscous oil and fat such as grease will be described. In the first modification of FIG. 11, a resin collar 101 is interposed between the worm (output side clutch 42) 45 and the drive shaft 27.
01 three inner peripheral projections 101a, 101
a and 101a are formed. Each tightening substitute projection 101
a is in contact with the drive shaft 27 and the tightening substitute projection 10
1a allows the worm (output side clutch 42) 45 to rotate with the rotation of the drive shaft 27.

Similarly, in the second modification shown in FIG. 12, a resin collar 102 is interposed between the worm (output side clutch 42) 45 and the drive shaft 27.
On the inner peripheral surface of 02, three spring pieces 102a, 102a, 10
2a is integrally formed. Each spring piece 102a is in contact with the drive shaft 27 so as to lightly urge the drive shaft 27, and the spring piece 102a causes the worm (output side clutch 42) 45 to rotate with the rotation of the drive shaft 27. Has become. In this case, the metal spring piece may be incorporated in the collar as a separate body. Also, color 10
1, 102 itself worm (output side clutch 42) 45
It may be formed integrally with.

The above-mentioned clutch mechanism 24 can be applied to various mechanical devices as a one-way clutch in addition to this type of electronic equipment.

Next, the trim mechanism 22 will be described.
As shown in FIGS. 3 to 5, the trim mechanism 22 is composed of a flat plate-shaped cutter 51 arranged so as to cover the clutch mechanism 24 from above and a crank mechanism 52 for cutting the cutter 51. There is.

The cutter 51 is composed of a fixed blade 53 and a movable blade 54, and is formed by punching and bending a thin plate of stainless steel or the like having a spring property with a press. Specifically, a rectangular thin plate is cut out in a substantially “U” shape, leaving a pair of left and right cutting portions (cutting lines are inserted in this portion) 55, 55, and a fixed blade 53 is inside and a fixed blade 53 is outside. The movable blade 54 is formed. Fixed blade 53
Is mounted on the upper end surface of the back frame portion 34 at the rear portion and is screwed to the upper frame portion 32 at the front portion. On the other hand, the movable blade 54 is connected to the crank mechanism 52 at the center of the rear part.

The pair of left and right cutting portions 55, 55 are portions for cutting the left and right corners of the printing tape T facing them into a round shape, respectively, and are arc-shaped cutting blade portions 55a formed on the fixed blade 53, respectively. And a cutting edge portion 55b of the movable blade 54 having a complementary shape. in this case,
Each cutting blade portion 55b of the movable blade 54 is bent so as to be twisted in the vertical direction, and when the movable blade 54 performs a cutting operation (rotation) in the vertical direction with the front end portion as a fulcrum, the cutting blade portion 55b.
Are rubbed against the cutting blade portion 55a of the fixed blade 53 like scissors. Then, the pair of left and right cutting parts 5
5, 55 are arranged in the device case 2 so as to face the shaping cutting inlet 14.

As shown in the rear view of FIG. 6, the crank mechanism 52 has a crank wheel 56 integrally formed with the worm wheel 47, an eccentric pin 57 projecting from the front end surface of the crank wheel 56, and an eccentric pin 57. The slider 58 has a long hole 58a with which the eccentric pin 57 is engaged. The slider 58 is sandwiched between the back frame portion 34 and a guide plate 59 disposed behind the back frame portion 34, and the two guide pins passed between the back frame portion 34 and the guide plate 59. Guides 60 and 60 are slidable in the vertical direction. At the top of the slider 58,
The rear portion of the movable blade 54 is fixed so as to be inserted, and the slider 58 slides in the vertical direction, whereby the movable blade 54 performs the cutting operation in the vertical direction.

The elongated hole 58a formed in the slider 58 extends in the left-right direction, and the eccentric pin 57 that rotates (revolves) via the crank wheel 56 slides in the elongated hole 58a in the left-right direction. Move up and down. That is, a crank mechanism that converts rotational movement into reciprocating linear movement is formed in this portion. The trim mechanism 22 configured as described above has a cutter 51 when the printing tape T is inserted into the shaping cutting inlet 14.
A trim switch 61 for rotating the motor 21 in the forward direction to operate the is further provided.

The trim switch 61, as shown in FIG.
A rotating arm 62 facing the tip of the orthopedic cutting inlet 14,
Switch arm 63 whose tip contacts the rotating arm 62
And a switch body 64 that contacts the base of the switch arm 63. The rotating arm 62 includes a cylindrical main body 62a rotatably supported by the device case 2 and a plurality of receiving portions 6 provided at an intermediate position in the axial direction of the main body 62a.
2b and a pushing portion 62 provided at the axial end portion of the main body 62a.
c and (see FIGS. 3, 4 and 6),
The receiving portion 62b faces the tip of the shaping cutting inlet 14, and the pushing portion 62c abuts on the tip of the switch arm 63. When the printing tape T is inserted into the shaping cutting introduction port 14, the printing tape T presses the receiving portion 62b,
The pushing portion 62c rotates around the main body 62a to push down the switch arm 63.

The switch arm 63 is composed of a leaf spring whose base end is fixed to the apparatus case 2, and the rotating arm 6 is provided.
The receiving portion 6 of the rotating arm 62 via the second pushing portion 62c.
The rotation arm 62 is weakly biased so that the 2b faces the shaping cutting inlet 14. The switch arm 63 in the standby state pushes up the pushing portion 62c by its spring force, and the switch main body 64 contacting this pushes off. On the other hand, when the push arm 62c pushes down the switch arm 63 against its springiness, the switch arm 63 pushes the switch body 64 to turn it on.

That is, when the printing tape T is properly inserted into the shaping cutting inlet 14, the switch main body 64 is turned on via the rotary arm 62 and the switch arm 63,
Switch body 64 when pulled out from the orthopedic cutting inlet 14
Turns off. Then, when the switch body 64 is turned on, the motor 21 rotates forward through the controller (CPU) 28 to cut the cutter 51, and when turned off, the motor 21 is stopped and the cutting operation of the cutter 51 is stopped.
That is, by inserting the printing tape T into the shaping / cutting inlet 14, the trim mechanism 22 automatically operates, and the end portion of the printing tape T is shaped and cut into a round shape.

Next, the peeling mechanism 23 will be described.
As shown in FIGS. 3, 4, and 6, the peel mechanism 23
Is an intermediate gear 71 that meshes with the gear portion 43 of the input side clutch 41, and an input gear 72 that meshes with the intermediate gear 71.
And a peel wheel (rotating body) 73 formed integrally with the input gear 72. A peeling protrusion 74 is provided on the upper end surface of the peel wheel 73.
Rotating together with the peel wheel 73 causes the end portion of the printing tape T to bend and release. On the other hand, the printing tape is peeled off by repeating the bending and the bending-releasing operation.
It is held by the peeling inlet (holding means) 15 so as to be a (see FIG. 8).

The intermediate gear 71 is rotatably supported by a support shaft 75 provided between the lower frame portion 31 and the subframe 26, and the integrally formed input gear 72 and peel wheel 73 are the lower frame portion. A shaft member 76 extending upward from 31 is rotatably supported. The peel wheel 73 rotates the gears 71, 72 as the motor 21 rotates in the forward and reverse directions.
The tape 21 for printing is separated by the rotation (see FIG. 7) when the motor 21 rotates in the reverse direction. here,
Before describing the structure of the peeling protrusion 74 in detail, the structure of the peeling introduction port 15 facing the rotating peeling protrusion 74 will be described.

The peeling introduction port 15 is formed integrally with the apparatus case 2, and guides the pair of surface guide walls 81, 81 for guiding the front and back directions of the printing tape T to be inserted and the lower side edge. And a side guide wall 82 for controlling. The side guide wall 82 guides the printing tape T so that the printing tape T is guided along the upper end surface of the peel wheel 73 and faces the peeling projection 74. Further, as shown in FIGS. 1 and 7, the pair of surface guide walls 81, 81 are curved in a substantially “S” shape with respect to the insertion direction. When the printing tape T is inserted into this,
The printing tape T is curved in a substantially "S" shape, and its end portion (free end) projects substantially toward the axial center of the peel wheel 73 and faces the peeling projection 74.

In this way, the pair of surface guide walls 81, 81
Since the tape is curved, the printing tape T inserted in this
Is a free end Ta facing the peeling protrusion 74 due to its own rigidity.
And is held by being stretched between the double-sided guide walls 81, 81. Therefore, the printing tape T can be held and the printing tape T can be smoothly inserted without requiring a special holding member. In addition, a portion facing the side guide wall 82, that is, a portion corresponding to the upper surface of the device case 2 is open, which allows insertion of various printing tapes T regardless of whether the tape width is wide or narrow, and printing is performed. The tape T is allowed to be pulled upward (see FIG. 1). As described above, since the printing tape T can be pulled out upward, it is not necessary to pull out the printing tape T after peeling through the curved surface guide wall 81, and the peeling paper c after peeling is used as a base. It is possible to prevent re-adhesion to the material tape a.

The peeling introduction port 15 and the peeling projection 74 of the embodiment are designed so that the printing tape T is inserted with the printing surface facing forward. This is because the user generally works while visually recognizing the printed surface when handling a printed tape. Therefore, a display to that effect is made on the peeling inlet 15 (not shown), and the user stands up the printing tape T so that the base tape a side is on the front side and the separator paper c side is the front side, and the peeling tape T is peeled off. Inlet 15
Will be inserted into. On the other hand, the peeling protrusion 74
Is rotated so as to contact the base tape a side to bend the printing tape T (see FIG. 7), and the pair of surface guide walls 8
1, 81 as a whole are curved in a direction opposite to the rotation direction. As a result, the peeling protrusion 74 bends the printing tape T against the bending force applied to it.

On the other hand, in this embodiment, the printing tape T
The corners (one by one) of the ends of the are bent, and this part is peeled off in a triangular shape. Therefore, of the pair of surface guide walls 81, 81, the oblique side portion 83a is located at the tip of the surface guide wall 81 on the release paper c side (the front side in the rotation direction).
A receiving member 83 having a is disposed (see FIGS. 3 and 6). The hypotenuse portion 83a of the receiving member 83 is adapted to face the rotating peeling protrusion 74, and the peeling protrusion 74
The printing tape T is received from the side of the release paper c such that the free end Ta of the printing tape T that bends with the rotation of is a triangle. Thereby, at the end of the printing tape T,
The corner, which is the easiest to peel off, can be positively peeled off.

As shown in FIG. 7, the peeling projection 74 is composed of four short short projection pieces 77 and four long long projection pieces 78, and each short projection piece 77 of the peel wheel 73. A circular projection 79 formed at the center of the upper end surface extends in the radial direction, and each long projection piece 78 extends from the base portion of the short projection piece 77 substantially at right angles thereto. In this case, the ends of the printing tape T facing the long protrusions 78 and the short protrusions 77 extend toward a position slightly eccentric from the axial center of the peel wheel 73, and the short protrusions 77 are The free end Ta of the printing tape T is continuously rotated in contact with the end portion (free end Ta) of the printing tape T from the tip end side to the base end side, and the free end Ta of the printing tape T is bent from the tip end side. Similarly, the long protrusion 78 is used for the peel wheel 73.
On the upper end surface of the printing tape T, extends substantially in the radial direction from the eccentric position, and continuously contacts the free end Ta of the printing tape T from the front end side to the base end side to bend it from the front end side. .

By the way, the adhesive force of the pressure-sensitive adhesive b to the release paper c is very small, and when the release paper c is released from the base tape a, a part which triggers the release is formed and the free end Ta is formed from this part. It is effective to spread the peeling over the entire area. Further, the free end Ta of the triangle has an extremely small adhering area as it approaches the tip, and is easily peeled off. Therefore, by flexing the free end Ta of the printing tape T from the front end side toward the base end side, the exfoliation of the free end Ta can be promoted and the free end Ta can be shortened. By using the protrusions 77 to perform the bending and the bending-releasing operation (peeling operation) in a concentrated manner, a portion that triggers the peeling can be formed. Further, from this state, the peeling operation by the long projection piece 78 spreads the peeling over the entire area of the free end Ta, and the release paper c at the free end Ta is peeled off. At the same time, the long projection piece 78 has one side of the free end Ta (a portion corresponding to the short side of the printing tape T).
And the short protrusion 77 strongly contacts with the other side (the portion corresponding to the long side of the printing tape T) as the center, and uniformly bends the entire free end Ta.

As described above, the peeling projection 74 is composed of the plurality of long projection pieces 78 and the plurality of short projection pieces 77, and is continuously brought into rotational contact with the printing tape T from the front end side to the base end side. Therefore, peeling of the printing tape T can be promoted. It should be noted that the peeling protrusion 74 may be configured by only a plurality of long protrusion pieces 78 or only a single long protrusion piece 78.

Further, the long protruding piece 78 and the short protruding piece 77
Has a peeling wheel 7 on the contact surface with the printing tape T.
3 are formed at right angles on the upper end surface of each of the three, and the tip ends thereof are chamfered so as to face the hypotenuse portion 83a of the receiving member 83 in parallel (see FIGS. 3 and 6).
In this case, in order to cause an appropriate bending for peeling at the end portion (free end Ta) of the printing tape T, it generally depends on the material of the printing tape T, but generally, the printing tape T It is preferable that t ≦ δ ≦ 10t, where t is the thickness and t is the gap between the tips of the long protrusions 78 facing in parallel and the hypotenuse portion 83a. This makes it possible to utilize the rigidity of the base tape a for peeling and prevent the base tape a from having a bending tendency (details will be described later).

In the peeling mechanism 23 constructed as described above, like the trimming mechanism 22, it is necessary to drive the motor 21 in the reverse direction when the printing tape T is inserted into the peeling introduction port 15. Therefore, the peel mechanism 23 of the embodiment is provided with a peel switch (drive control means) 91. As shown in FIGS. 3 and 4, the peel switch 9
A switch arm 92 is rotatably attached to the inner surface of the device case 2 above the peel wheel 73, and a switch body 93 that abuts on the switch arm 92. The switch arm 92 is formed in a substantially “L” shape, the tip end thereof faces the curved portion of the peeling introduction port 15, and the tail end thereof abuts the switch body 93.

The switch arm 92 in the standby state is
It is pressed by a spring (not shown) built in the switch main body 93, and the tip end portion projects to the curved portion of the peeling introduction port 15. When the printing tape T is inserted into the peeling introduction port 15 from this state, the switch arm 92 is pushed by the end portion of the printing tape T to rotate. Switch arm 92
When is rotated, the switch body 93 is resisted against the built-in spring.
Is pressed and turned on. That is, when the printing tape T is inserted into the peeling introduction port 15, the switch body 93 is turned on via the switch arm 92, and conversely, when the printing tape T is pulled out from the peeling introduction port 15, the switch body 93 is turned off. And
When the switch body 93 is turned on, the controller (CPU)
The motor 21 rotates in reverse through the peel wheel 73.
Is rotated to cause the peeling protrusion 74 to peel.

In this case, the motor 21 starts rotating when the tip of the inserted printing tape T reaches the curved portion of the peeling introduction port 15, so that the tip of the printing tape T rotates (the rotation of the peeling protrusion). When it reaches the position of (in the locus) 74, the peeling projection 74 has already rotated. Therefore, by the time the end of the printing tape T is deeply inserted into the peeling protrusion 74 side, the end of the printing tape T (free end T
In the case of a), the peeling operation is repeatedly performed by the long and short projection pieces 77 and 78 from the tip side. Therefore, this structure also promotes the peeling of the release paper c at the free end Ta.

Specifically, the free end Ta of the printing tape T is
Goes into the rotation locus of the long projection piece 78 from its tip and is repeatedly peeled from the long projection piece 78 (short projection piece 77) until it is inserted deeply. Therefore, at the beginning of insertion, the tip portion of the free end Ta, which is easily peeled off, undergoes a peeling operation, which causes the peeling. Then, the peeling progresses from this trigger portion to the entire area of the free end Ta. As a result, as shown in FIG. 13A, the release paper c is released in a curved manner. On the other hand, when the printing tape T is inserted into the rotation locus of the long projection piece 78 and then the long projection piece 78 (short projection piece 77) is rotated, as shown in FIG.
The release paper c is released by bending, but in such a case, the release is not triggered, and the release properties are slightly inferior.

The peel switch 91 may be composed of an optical sensor or the like. The peel switch 91 may have any position or structure as long as it is configured to rotate the free end Ta of the printing tape T before the free end Ta of the printing tape T enters into the rotation locus of the long protrusion 78.

Next, with reference to FIGS. 8 and 9, the peeling operation of the printing tape T by the peeling protrusions 74 will be described in more detail with the long protrusion piece 78 as an example. As shown in FIG. 8, the printing tape T is held by the double-sided guide walls 81 and 812 of the peeling introduction port 15 and the receiving member 83, leaving the free end Ta, and the long projection piece 78 comes into rotational contact therewith. . As described above, the long protrusion piece 78 contacts the base tape a side of the printing tape T and bends it. For this reason,
The free end Ta of the printing tape T bends with the side of the base tape a as the outside and the side of the release paper c as the inside. In the bending of the free end Ta, as shown in FIG. 9, the receiving member 83 that receives the bending is provided.
Since it can be bent around the hypotenuse portion 83a of the base tape a
Has a large radius of curvature (R), and the release paper c has a radius of curvature (R)
Can be bent small. Therefore, as the bending progresses, interlayer slip occurs between the pressure-sensitive adhesive b and the release paper c, and the adhesive force of the pressure-sensitive adhesive b to the release paper c is extremely reduced.

Further, after the bending of the free end Ta reaches the maximum, the tip of the long protruding piece 78 separates by tracing the tip of the free end Ta, and the free end Ta jumps back to its original state. Return. At that time, due to the interlayer slip,
The release paper c is projected from the base tape a, and the tip of the long protrusion 78 first separates from the base tape a.
Then, the release paper c is released. When the tip of the long protrusion 78 separates from the base tape a, the base tape a tries to return to its original linear state by its own spring force and against the adhesive force of the adhesive b to the release paper c. . At this time, if the spring force of the base tape a exceeds the sticking force of the adhesive b weakened by the interlayer slip, the release paper c is peeled from the base tape a. Even if it is not peeled off, the adhesive force of the adhesive b is further weakened,
By repeating this peeling operation, the release paper c is peeled from the base tape a.

On the other hand, after the long protrusions 78 separate from the base tape a, by the time the separation paper c separates from the base tape a, the release paper c slightly bends as much as the base paper a and is bent further. Become. By the way, the bending (deflection) of the free end Ta of the printing tape T by the long protrusions 78 reaches the region of permanent deformation for the release tape c so that it is within the limit of elastic deformation for the base tape a. Is set to. Therefore, in the state in which the bending due to the long protrusions 78 is released, as shown in FIG. 10, the base tape a returns to the original linear state, but the release paper c does not return to the linear state and has a bending tendency. It will be in a state of being. Therefore, the release paper c that has been bent and peeled off is not attached to the base tape (adhesive b) a again, and the release paper c is completely released.

[0070]

As described above, according to the peeling device of the present invention, with respect to the free end of the adhesive tape held by the holding means,
Since the peeling protrusions are brought into contact with each other in rotation, the pressure-sensitive adhesive on the base tape side and the peeling paper are utilized by the interlayer slip,
It can be peeled off efficiently. Further, the apparatus can be made compact by providing the peeling protrusions on the end surface of the rotating body.

[Brief description of drawings]

FIG. 1 is an external perspective view of a tape printer according to an embodiment of the present invention.

FIG. 2 is a plan view of the tape printer according to the embodiment.

FIG. 3 is a front view of a tape processing device incorporated in the tape printer.

FIG. 4 is a plan view of a tape processing device incorporated in the tape printer.

FIG. 5 is a right side view of the tape processing device incorporated in the tape printer.

FIG. 6 is a rear view of the tape processing device incorporated in the tape printer.

FIG. 7 is a plan view showing the relationship between a peeling protrusion and a peeling inlet of the tape processing device.

FIG. 8 is a plan view showing a peeling operation of the printing tape.

FIG. 9 is an enlarged plan view showing the peeling operation of the printing tape.

FIG. 10 is a perspective view showing a state in which the release paper is peeled from the printing tape by the tape processing device.

FIG. 11 is an enlarged cross-sectional view around a worm showing a first modified example of the light engagement means.

FIG. 12 is an enlarged sectional view around a worm showing a second modified example of the light engagement means.

FIG. 13 is a plan view showing two peeling modes of the printing tape.

[Explanation of symbols]

1 tape printer 2 device case 12 Tape processing device 15 Peeling inlet 21 motor 23 Peel mechanism 28 Controller 73 Peel Wheel 74 Peeling protrusion 77 Short protrusion 78 Long protrusion 81-side guide wall 82 Side guide wall 83 Receiving member 83a hypotenuse 91 Peel Switch T printing tape Ta free end a Base tape b Adhesive c Release paper

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshino Kameda 2-10-18 Higashi-Kanda, Chiyoda-ku, Tokyo Inside King Jim Co., Ltd. (72) Tomoyuki Niimura 2-10-18 Higashi-Kanda, Chiyoda-ku, Tokyo King Jim Co., Ltd. (72) Inventor Tomohiro Moriya 2-10-18 Higashi-Kanda, Chiyoda-ku, Tokyo King Jim Co., Ltd. (56) Reference JP-A-8-175744 (JP, A) JP-A-7-239553 ( JP, A) JP-A-4-129963 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) B65H 41/00

Claims (10)

(57) [Claims] 1. A release tape is partially formed from an adhesive tape obtained by laminating a base tape having one surface coated with an adhesive and a release paper attached to the base tape via the adhesive. In a peeling device for peeling, a rotating body that is rotated by a drive source, and a peeling device that is provided on the end surface of the rotating body and is in rotational contact with the base tape side of the end of the adhesive tape to bend and unbend it. includes a protrusion, and a holding means for holding the end of the adhesive tape leaving a free end facing said peeling projection with guiding the insertion of the adhesive tape toward the peeling projection, the retaining means, the adhesive If the side of the tape end is
A side guide that guides the insertion along the end face of the rolling element.
A peeling device having a wall . 2. The rotating contact of the peeling protrusion with the end of the adhesive tape is continuously performed from the front end to the free end of the adhesive tape. The peeling device according to. Wherein said holding means, according to claim 1, characterized in that it has a pair of faces guide wall end portion of the adhesive tape is guided to be inserted in a curved against the insertion direction in the front and back direction or The peeling device according to 2 . 4. The contracting means, wherein the holding means is open to the outside at a portion facing the side guide wall.
The stripping device according to claim 1, 2, or 3 . 5. Chi least Cormorants <br/> of the pair of surfaces guide walls, the tip of the peeling projection side of the adhesive tape of the release paper side position faces the guide wall, the corner of the end portion of the adhesive tape The peeling device according to claim 1, 2 or 3 , wherein a hypotenuse portion is provided so that the portion becomes a free end. Wherein the tip of said peeling projection is claimed, characterized in that it is parallel to to said inclined portion which faces
Item 5. The peeling device according to item 5 . Billing gap 7. a tip of said peeling projection which faces in parallel to the oblique side portion, the thickness of the adhesive tape when the t, which is a t ≦ gap ≦ 10t
Item 6. The peeling device according to Item 6 . 8. The peeling projections are composed of a plurality of peeling projection pieces arranged substantially radially on the end surface of the rotating body, and the plurality of peeling projection pieces have long peeling projection pieces and short peeling projection pieces. 2. The peeling projection pieces are mixed together.
7. The peeling device according to any one of 7 . 9. Before the tip of the adhesive tape is inserted into the rotation locus of said peeling projection, the driving control means for driving the drive source, characterized in that it comprises further claims
Item 9. The peeling device according to any one of items 1 to 8 . 10. The peeling device according to claim 9 , wherein the drive control means drives the drive source by detecting a tip of the adhesive tape that is inserted into the holding means.