JPH09202514A - Tape dispenser - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and accurately mount an adhesive tape with a liner continuously without delay along a bent route extending in various bent states on an object surface. SOLUTION: A tape dispenser 10 comprises a base part 12; a guide means 14; a separating means 16, and a nipping means 18. A base part 12 carries a tape roll 202 by a roll carrying part 24. The guide means 14 has a guide passage 42 partitioned between first and second protrusion parts 38 and 40 and guides an adhesive tape 200 with a liner unrolled from the tape roll 202 in a given direction. The separating means 16 has a cross edge part 60 situated downstream of the guide passage 42 and arranged at the second protrusion part 40 and automatically peels a liner 206 from the adhesive tape 200 with a liner. A nipping means 18 has a press roller 66 brought into resilient contact with the flat side 50 of the second protrusion part 40, and holds an adhesive tape 210 in a flat state under a given pressure with advance of the adhesive tape being allowed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape dispenser capable of continuously delivering an adhesive tape under a tensile force in the longitudinal direction, and more particularly, to a liner attached to an adhesive layer on one surface of an extensible support. Adhesive tape with liner
The present invention relates to a handheld tape dispenser which automatically separates a liner and continuously delivers the liner. The tape dispenser according to the present invention, the contour peripheral portion of the plate having various planar shapes such as road signs and the like extending in a variety of bends, for example, adhesive tape for surface protection continuously without wrinkling or peeling. It can be used particularly preferably for sticking.

[0002]

2. Description of the Related Art In the case where an adhesive tape having an adhesive layer on one surface of a strip-shaped support made of a plastic film, cloth or the like is continuously attached along a bending path that is bent in various ways on a target surface. Has a tendency that wrinkles and creases are formed on the adhesive tape in the bent region. Such wrinkles and folds
Not only does this impair the appearance of the target surface, but it also causes peeling of the adhesive tape. At this time, it is known that wrinkles and creases can be eliminated by sticking the adhesive tape on the target surface while stretching it in the longitudinal direction. This method determines whether wrinkles or folds can be eliminated depending on the extensibility of the support of the adhesive tape and the curvature of the bending region in the bending path.

An example of application of an adhesive tape that is continuously applied along a curved path on a target surface is a protective tape that is applied to the peripheral edge of the contour of a road sign. In general, road signs are formed by attaching a retroreflective sheet (see, for example, Japanese Patent Publication No. 40-7870) to the main surface of a substrate having various planar shapes with, for example, an adhesive. In this case, the retroreflective sheet is extended to the vicinity of the peripheral portion of the main surface of the substrate, but the peripheral portion of the road sign is easily damaged by a collision with another object, and this damage also occurs in the peripheral portion of the retroreflective sheet. If it extends, there is a risk that the retroreflective sheet will be damaged or peeled off. In order to eliminate such a fear, conventionally, a transparent resin protective tape is attached along the peripheral edge of the retroreflective sheet across the retroreflective sheet and the substrate.

In order to uniformly and surely protect the entire peripheral portion of the retroreflective sheet, it is desirable that the resin protective tape be continuously attached to the peripheral portion of the sheet without being divided into a plurality of portions. . In the case of a road sign, the substrate and the retroreflective sheet have various plane shapes such as a circle, a triangle, and a quadrangle. Therefore, it is possible to continuously attach a protective tape to the peripheral edge of the sheet that is bent and extends in such various contours. Required. At this time, since wrinkles and creases are likely to occur in the resin protective tape in the bent region of the sheet peripheral portion, the method of attaching the protective tape to the sheet peripheral portion while stretching the protective tape in the longitudinal direction is performed as described above.

By the way, when the adhesive tape is stored and stored in a sheet form or a roll form, in order to protect the adhesive layer and prevent the tape from being stretched or broken, the adhesive layer is provided with a liner (that is, releasability). It is well known to attach a backing paper). Therefore, when the adhesive tape with such a liner is attached along a bending path (for example, the peripheral edge portion of the above-mentioned road sign) that is bent in various ways on the target surface, the operation of peeling the liner, It is required that the operation of stretching the adhesive tape from which the liner has been peeled off in the bending region and the operation of sticking the stretched adhesive tape on the target surface while positioning are performed continuously and accurately without delay. Conventionally, the work of sticking such an adhesive tape with a liner has been performed by careful manual work by a skilled worker.

A liner-attached pressure-sensitive adhesive tape obtained by attaching a liner to a pressure-sensitive adhesive layer provided on one surface of a resin support,
An example of a hand-operable tape applying device for automatically separating the liner and continuously delivering the liner is disclosed in Japanese Patent Laid-Open No. 5-338627.
No. 6,086,045.

[0007]

In order to make an adhesive tape follow a bent area of a right angle or an acute angle such as a corner of a triangle or a quadrangle on a target surface, and to attach it while eliminating wrinkles and folds, It is necessary that the support of the pressure-sensitive adhesive tape is formed of a plastic film or cloth that can be easily stretched without breaking, that is, has a large elongation at break. Such an easily extensible pressure-sensitive adhesive tape (hereinafter referred to as extensible pressure-sensitive adhesive tape) is advantageous in that a liner is attached to the pressure-sensitive adhesive layer. Adhering the tape to various bent areas on the target surface requires more careful manual work by a skilled person.

In particular, when the stretchable pressure-sensitive adhesive tape from which the liner has been peeled off is stretched, the pressure-sensitive adhesive tape is likely to cause many longitudinal wrinkles extending in the longitudinal direction as the tensile force increases.
When the wrinkles are deep, the pressure-sensitive adhesive layer tends to self-adhere at that portion. The work of applying the stretchable adhesive tape while removing such vertical wrinkles and self-adhesion is a considerable physical and mental burden even for a skilled person, and it is necessary to continue the operation for a long time. Are expected to cause problems such as slow work speed and poor work quality.

The tape sticking device disclosed in Japanese Patent Laid-Open No. 5-338627 is a device for sticking an adhesive tape onto a target surface by means of a sticking head provided in itself, and the target surface has various curved surfaces. Also in the case of, it is possible to stick the tape by following the target surface while stretching the adhesive tape between the sticking head and the target surface by the pressing force. However, in this case, it is necessary to prepare a sticking head having a surface shape that matches the shape of the target surface so that an unnecessary gap is not generated between the surface of the sticking head and the target surface. In order to apply it, for example, many kinds of replaceable sticking heads are required, which poses a problem in actual work.

Further, the action of stretching the adhesive tape by pressing the application head is not sufficient to cause the adhesive tape to follow a right-angled or acute-angled bent region such as a triangular or quadrangular corner on the target surface. In order to obtain sufficient elongation of the adhesive tape, it is necessary to hold the part of the adhesive tape adhered to the target surface fixedly on the target surface and pull the adhesive tape away from the target surface of the application head of the application device. Although conceivable, in this case, it is difficult to avoid the occurrence of vertical wrinkles and self-adhesion as described above.

Therefore, the main object of the present invention is to enable the adhesive tape with liner to be easily and accurately adhered continuously and without delay along a bending path that extends by bending variously on the target surface. It is to provide a tape dispenser that functions as a sticking aid. Another object of the present invention is to provide a tape dispenser capable of applying stretchable adhesive tape to various bending areas on a target surface while avoiding vertical wrinkles or self-sticking when stretching the tape. To provide.

[0012]

In order to achieve the above object, the present invention provides a liner-containing pressure-sensitive adhesive tape comprising a liner attached to a pressure-sensitive adhesive layer provided on one surface of an extensible belt-shaped support. A tape dispenser that can be manually carried out while automatically separating and is provided, which is a guide means for guiding a base portion and an adhesive tape with a liner, which is provided on the base portion and advances under a tensile force in a longitudinal direction, in a predetermined direction. And a separating means which is provided at the base portion on the downstream side of the guide means in the tape advancing direction and which automatically separates the liner from the adhesive tape with liner advancing along the guide means, and a base portion on the downstream side of the separating means in the tape advancing direction. Clamping means which is provided and which passes through the separating means and has no liner and which clamps the pressure-sensitive adhesive layer of the pressure-sensitive adhesive tape in a flat state while allowing the pressure-sensitive adhesive tape to advance. To provide a tape dispenser which is characterized by comprising.

The present invention further provides the above tape dispenser, wherein the holding means has a length corresponding to at least the entire width of the support wall provided on the base and the adhesive tape supported by the base and having no liner. A pressure roller that is elastically abutted against the support wall under a predetermined pressure, and the pressure roller does not have a liner and enters between the support wall and the pressure roller. Provided is a tape dispenser configured to contact a layer over the full width of the adhesive layer and to press the support of the adhesive tape against the support wall over the full width of the support.

The present invention further provides the above tape dispenser, wherein the holding means further comprises an urging member for elastically urging the pressing roller toward the supporting wall.

The present invention further provides the above tape dispenser, wherein the holding means is at least at the contact portion between the supporting wall and the pressing roller in the longitudinal direction of the adhesive tape passing through the contact portion without the liner. Provided is a tape dispenser configured to further include guide walls extending adjacent to and facing opposite side edges.

The present invention further provides the above tape dispenser, wherein the supporting wall is composed of an auxiliary roller axially mounted on the base in parallel with the pressing roller.

The present invention further includes, in the above tape dispenser, a delivery section which is provided at the base portion on the downstream side of the pinching means in the tape advancing direction and which feeds out the adhesive tape that has passed through the pinching means while holding it in a flat state. And a tape dispenser configured to.

The present invention further provides, in the tape dispenser described above, the delivery section is provided with a delivery roller which is supported by the base section and has a shaft which is orthogonal to the forward direction of the adhesive tape passing through the holding means and which rotates. Provided is a tape dispenser in which a roller has an adhesive portion on at least a part of its outer peripheral surface and is configured to make adhesive contact with a support of an adhesive tape over the entire width of the support.

The present invention further provides, in the above tape dispenser, the guide means comprises a guide passage defined by two mutually opposing fixed walls provided on the base, and the distance between the two fixed walls. Provided is a tape dispenser configured to be larger than the thickness of the adhesive tape with liner and smaller than the width of the adhesive tape with liner that advances along the guide passage.

The present invention further provides the above tape dispenser, wherein the separating means includes an end edge portion provided on one fixed wall facing the support of the adhesive tape with liner at the downstream end of the guide passage in the tape advancing direction. Adhesive with liner in the guide passage is provided at the base on the downstream side of the tape advancing direction of the edge part, the support of the adhesive tape with liner is brought into contact with the edge part, and the adhesive tape without liner is bent to bend. And a second guide means for guiding the tape in a direction intersecting the forward direction of the tape.

The present invention further provides, in the above tape dispenser, a roll carrying portion which is provided at the base upstream of the guide means in the tape advancing direction and rotatably carries a tape roll formed by winding an adhesive tape with a liner in a roll shape. And a tape dispenser configured to further include:

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on preferred embodiments with reference to the accompanying drawings. In the drawings, the same or similar components are denoted by common reference numerals. With reference to FIGS. 1 to 4, a tape dispenser 10 according to an embodiment of the present invention includes a base 12, a guide unit 14, a separating unit 16, and a sandwiching unit 18. The tape dispenser 10 supports an adhesive tape with a liner, which is stored in a roll form, in a roll form, and removes the adhesive tape from the roll under a pulling force applied in the longitudinal direction by an operator's hand or a machine. It is a sticking aid that can be hand-held to automatically separate and continuously deliver. However, the present invention can also be applied as a sticking assisting tool for automatically delivering a liner-attached pressure-sensitive adhesive tape stored in a sheet form while automatically separating the liner.

In the illustrated embodiment, the base portion 12 is provided on the main surface 22 of the supporting portion 20 in the vicinity of the flat supporting portion 20 having a substantially trapezoidal planar shape and the longitudinal end portion of the supporting portion 20. And a roll carrier 24. The support portion 20 is a base portion that directly or indirectly supports all the components of the tape dispenser 10 described later, and the roll support portion 24.
Is a portion that can carry a roll-shaped adhesive tape with a liner and can be held by one hand when an operator operates the tape dispenser 10.

The roll carrying portion 24 is formed to include a substrate portion 24a attached to the main surface 22 of the supporting portion 20 and a raised portion 24b protruding from the substrate portion 24a in an upright state. The base portion 24a comprises a bearing surface 25 extending substantially parallel to the main surface 22. The raised portions 24 b are substantially orthogonal to the main surface 22 and extend in parallel with both longitudinal edges 20 a, 20 b of the supporting portion 20. The pair of parallel flat side surfaces 26 are connected to the flat side surfaces 26 and are substantially connected to the main surface 22. A pair of arc-shaped side surfaces 28 that extend orthogonally and are arranged so as to be convex outward are provided, and a top surface 30 that extends substantially parallel to the main surface 22 from each edge of the flat side surface 26 and the arc-shaped side surface 28. The pair of arc-shaped side surfaces 28 rotatably carry a tape roll 202 formed by winding the liner adhesive tape 200 in a roll form.

The tape roll 202 is formed, for example, by winding an adhesive tape with liner 200 around a hollow cylindrical core 204 with the liner 206 facing inward.
4 is an arcuate side surface 28 of the roll carrier 24.
Is slidably contacted with and carried. In addition, it is preferable that the roll supporting portion 24 has a raised portion 24b from the substrate portion 24a.
The protrusion height of is set to be substantially equal to or slightly larger than the axial dimension of the tape roll 202 (that is, the transverse dimension of the adhesive tape 200 with liner).

On the top surface 30 of the roll carrying portion 24, a claw 32 projecting on a part of the arc side surface 28 is selectively arranged. The claw 32 engages with the core 204 of the tape roll 202 carried on the arc side surface 28, and prevents the tape roll 202 from falling off the roll carrying part 24. That is, at this time, the tape roll 20 rotating on the roll carrier 24
2 is held on the arc side 28 between the bearing surface 25 and the pawl 32. The roll supporting portion 24 may be configured such that the substrate portion 24a is omitted and the raised portion 24b is directly connected to the supporting portion 20.

Further, between the top surface 30 of the roll carrying portion 24 and the back surface 34 of the supporting portion 20 opposite to the main surface 22,
A through hole 36 is formed so that the operator's finger can be engaged. For the same purpose, bottomed recesses (not shown) may be formed in the top surface 30 and the back surface 34 instead of the through holes 36. Therefore, the operator can operate the tape dispenser 10 in a state in which the roll carrying portion 24 of the tape dispenser 10 is held with one hand and the through hole 36 is hooked with the finger. As described above, since the roll-carrying portion 24 can be used as the gripping portion, the adhesive tape 210 from which the liner 206 has been peeled off in the tape attaching operation described later is performed.
When the tape is stretched, the worker can stop the rotation of the tape roll 202 with the hand holding the tape dispenser 10, and the sticking work becomes easy.

The guide means 14 is provided adjacent to the roll carrying portion 24 and guides the liner-attached adhesive tape 200 which is unrolled and advanced from the tape roll 202 under a tensile force in the longitudinal direction in a predetermined direction. In the illustrated embodiment, the guide means 14 includes a first protruding portion 38 that is provided on the main surface 22 so as to be adjacent to the roll carrying portion 24 at a substantially central portion of the support portion 20, and a roll that is adjacent to the first protruding portion 38. A second projecting portion 40 projecting from the main surface 22 on the opposite side of the carrying portion 24, and a first projecting portion 3
8 and the guide passage 42 defined between the second protrusion 40.

The first protruding portion 38 has a pair of parallel flat side surfaces 44 extending substantially orthogonal to the main surface 22 of the supporting portion 20 along both longitudinal edges 20a and 20b of the supporting portion 20, respectively.
46 and a first guide surface 48 that is connected to the flat side surfaces 44, 46 by obliquely intersecting with each other and extends substantially orthogonal to the main surface 22.
And The second protrusion 40 has a flat side surface 50 that extends substantially orthogonal to the main surface 22 along the longitudinal edge portion 20b of the support portion 20, and a flat side surface that extends substantially parallel to the flat side surface 50 at the center of the main surface 22 in the transverse direction. 52 and their flat sides 50, 5
2 and a second guide surface 54 that is diagonally crossed and connected and that extends substantially parallel to the first guide surface 48.

The first guide surface 48 and the second guide surface 54 are fixed walls spaced apart from each other on the main surface 22 and cooperate with the main surface 22 to define the guide passage 42. Guide passage 4
2 is a tape roll 20 carried by the roll carrying part 24
The liner-attached adhesive tape 200 fed out from No. 2 is accurately guided toward the separating means 16 while reducing its bending and twisting as much as possible, and at the time of stopping the feeding-out operation (that is, when the sticking operation is stopped). It acts so as to reduce flexure and twist of the adhesive tape with liner 200 that may occur. Therefore, the distance between the first guide surface 48 and the second guide surface 54 is preferably set to be larger than the thickness of the adhesive tape with liner 200 advancing along the guide passage 42 and smaller than its width (transverse dimension). . With such an arrangement, the bending and twisting of the adhesive tape with liner 200 passing through the guide passage 42 are effectively reduced.

Further, preferably, the projecting height of the first projecting portion 38 and the second projecting portion 40 from the main surface 22 of the supporting portion is set to be at least equal to the entire width (transverse direction dimension) of the adhesive tape 200 with liner. Thereby, the guide passage 42 having a width equal to or wider than the entire width of the adhesive tape with liner 200 is formed.

As shown in the figure, the liner-attached adhesive tape 200 fed from the tape roll 202 enters the guide passage 42 from the side of the flat side surface 44 of the first protrusion 38 which intersects the first guide surface 48 at an obtuse angle. The flat side surface 46 side that intersects the first guide surface 48 at an acute angle is reached. At this time, the intersecting edge portion 56 between the flat side surface 44 of the first protruding portion 38 and the first guide surface 48 has the liner 20 of the adhesive tape 200 with liner.
It is preferable to arrange it at a position where it always contacts 6. The intersecting edge portion 56 is substantially orthogonal to the main surface 22 of the support portion 20 and extends linearly over the length corresponding to the entire width of the adhesive tape 200 with liner.

According to the structure of the guiding means 14 as described above,
The liner-attached adhesive tape 200 fed from the tape roll 202 is sent to the downstream separating means 16 in the guide passage 42 in a state of being at least slightly tensioned in the longitudinal direction by the frictional force received from the cross edge portion 56. Moreover, even if the tape feeding out progresses and the diameter of the tape roll 202 decreases, the liner-attached adhesive tape 20 in the guide passage 42
The zero forward path is maintained at a predetermined straight path. As a result, the action of reducing the bending and twisting of the above-described adhesive tape with liner 200 is improved, and the separating means 16 described later is provided.
The separating action of the liner 206 is improved.

The guide means 14 can further optionally include a pair of guide walls 58 extending from the flat side surface 44 of the first protruding portion 38 to the main surface 22 of the support portion 20 substantially in parallel. The pair of guide walls 58 define an auxiliary passage 59 through which the liner-attached pressure-sensitive adhesive tape 200 passes, and prevent the liner-attached pressure-sensitive adhesive tape 200 from dropping off from the guide passage 42 when the liner-shaped pressure-sensitive adhesive tape 200 is fed out. For such a purpose, the guide wall 58 can be extended and provided also on the first guide surface 48 side. At least the guide wall 58 adjacent to the support portion 20 preferably has a thickness substantially the same as the thickness of the substrate portion 24a of the roll carrying portion 24.

The separating means 16 is provided on the downstream side of the guiding means 14 in the tape advancing direction, and the liner-attached adhesive tape 200 is provided.
As is advanced along the guide means 14, the liner 206 is automatically peeled off from the adhesive tape with liner 200. In the illustrated embodiment, the separating means 16 is located at the downstream end of the guide passage 42 in the tape advancing direction, and has an intersecting edge portion 60 formed between the flat side surface 50 of the second protrusion 40 and the second guide surface 54. And second guide means 62 for guiding the adhesive tape 210 not having the liner 206 in a direction crossing the forward direction of the adhesive tape with liner 200 in the guide passage 42, on the downstream side of the guide passage 42 in the tape advance direction. .

As shown in enlarged form in FIG.
Is arranged at the downstream end of the guide passage 42 in the tape advancing direction so that it can always come into contact with the support 212 of the adhesive tape with liner 200 that advances through the guide passage 42. Such a crossed edge portion 60 extends substantially orthogonal to the main surface 22 of the support portion 20 and extends linearly over a length corresponding to the entire width of the adhesive tape with liner 200. Further, due to the relative positional relationship between the intersecting edge portion 60 and the intersecting edge portion 56 of the first protruding portion 38, the intersecting edge portion 56 is always in contact with the liner 206 of the adhesive tape with liner 200 as described above.

The second guide means 62 is supported by the base 12 and a second guide passage 64 defined by the main surface 22 of the support portion 20 and the flat side surface 50 of the second protrusion 40, and has a liner 206. The second protrusion 40 is provided under a predetermined pressure over at least the entire width of the adhesive tape 210.
And a rotatable pressing roller 66 elastically abutted on the flat side surface 50 of the. The pressure roller 66 is provided in the guide passage 42.
The support 212 of the pressure-sensitive adhesive tape with liner 200 advancing through it is brought into contact with the cross edge portion 60 to bend only the pressure-sensitive adhesive tape 110, thereby causing the liner 206 to move to the pressure-sensitive adhesive tape 2.
Remove the adhesive tape 210 only from the second
The vehicle is advanced along the guide passage 64. In this embodiment,
The pressing roller 66 is also a component of the holding means 18, and its details will be described later.

According to the structure of the separating means 16 as described above,
Since the liner 206 is generally coated with silicon and is stronger than the adhesive tape 210, the adhesive tape with liner 200 is moved forward along the guide passage 42, so that the liner 206 advances along the guide passage 42 and crosses the downstream edge of the guide passage 42. At 60, the liner 206 and the adhesive tape 210 are easily and automatically separated. As described above, this separating action is performed by the guide passage 42.
Since the pressure-sensitive adhesive tape with liner 200 has a predetermined straight path therein, even if the pressure-sensitive adhesive tape with liner 200 is fed out and the diameter of the tape roll 202 is decreased, the pressure-sensitive adhesive tape 200 functions reliably without changing accuracy. Then, as shown in FIG. 5, the adhesive tape 210 is sent to the holding means 18 on the downstream side along the second guide passage 64, and at the same time, the liner 206 is
The tape is discharged from the tape dispenser 10 through a gap 68 provided on the opposite side of the second guide passage 64 with respect to the pressing roller 66.

The sandwiching means 18 is provided on the downstream side of the separating means 16 in the tape advancing direction, and allows the adhesive tape 210 having no liner 206 passing through the separating means 16 to move forward under the predetermined pressure while allowing the adhering tape 210 to advance. It makes it possible to eject the adhesive tape 210 from the tape dispenser 10 while sandwiching and holding the exposed adhesive layer 214 (see FIG. 5) of the adhesive tape 210 in a flat state. In the illustrated embodiment, the sandwiching means 18 includes a flat side surface 50 of the second projecting portion 40 provided on the support portion 20 of the base portion 12, and a pressing roller 66 supported by the base portion 12. The flat side surface 50 constitutes a supporting wall against which the pressing roller 66 abuts.

The pressing roller 66 has a cylindrical outer peripheral surface 70 having an axial length corresponding to at least the entire width of the adhesive tape 210. Further, the pressing roller 66 has the second protrusion 4
Below the flat side surface 50 of 0, two arms 72 of different lengths
A support arm member 72 having a and 72b is rotatably supported near the tip of a long arm 72a via a shaft 74. The support arm member 72 is rotatably supported by both arms 72 a and 72 b via a shaft 78 on a stationary base 76 protruding from the flat side surface 46 of the first protrusion 38 provided on the base 12. Further, the support arm member 72 is a urging member 80 disposed between the connecting portion 72c and the flat side surface 46 of the first protruding portion 38 at a connecting portion 72c that interconnects the base ends of both arms 72a and 72b.
Thereby receives an elastic biasing force in the clockwise direction (arrow A in FIG. 5) about the shaft 78.

The shaft 74 is the main surface 2 of the supporting portion of the base 12.
2, and the shaft 78 is fixedly arranged substantially orthogonal to the main surface 22. Further, the pressing roller 66 can be formed of, for example, a cylindrical core 82 fixed concentrically to the shaft 74 and a cylindrical coating 84 fixed concentrically to the outer peripheral surface of the cylindrical core 82 (see FIG. 5). The biasing member 80 can be formed of a compression coil spring, a leaf spring, or the like.

The pressing roller 6 is pressed by the pressing member 80.
6 is elastically abutted against the flat side surface 50 of the second protruding portion 40 under a predetermined pressure when the adhesive tape with liner 200 does not pass through the separating means 16. When the liner-attached adhesive tape 200 passes through the separating means 16 to separate the liner 206, the adhesive tape 2 without the liner 206
Reference numeral 10 indicates the pressing roller 66 slightly counterclockwise with respect to the shaft 78 against the elastic biasing force of the biasing member 80 (arrow B in FIG. 5).
While moving to the second position, the second protrusion 40 enters between the flat side surface 50 and the pressing roller 66. And adhesive tape 210
Covers the pressure-sensitive adhesive layer 214 over its entire width.
Of the pressure roller 66 to the shaft 74.
With respect to, while rotating in the counterclockwise direction (arrow C in FIG. 5), it advances along the second guide passage 64 in a direction substantially orthogonal to the shaft 74. At this time, in the adhesive tape 210, the support body 212 is pressed against the flat side surface 50 over the entire width by the action of the pressing roller 66, and slides on the flat side surface 50.

According to the structure of the sandwiching means 18 as described above,
The adhesive tape 210, which has passed through the separating means 16 and separated from the liner 206, is separated from the outer peripheral surface 70 of the pressing roller 66 by the second tape.
The tape is dispensed from the tape dispenser 10 while maintaining a flat shape under a predetermined pressure between the flat side surface 50 of the protrusion 40. Therefore, even when the adhesive tape 210 is stretched in the tape attaching operation described later, the adhesive tape 210
Since a flat shape is maintained between the pressing roller 66 and the flat side surface 50, it is possible to prevent a large number of vertical wrinkles from being formed on the entire adhesive tape 210 and self-sticking on the adhesive layer 214. Further, in the adhesive tape 210 advancing through the second guide passage 64, the adhesive layer 214 is in adhesive contact with the outer peripheral surface 70 of the pressing roller 66, so the tape dispenser 1
Even when 0 is suddenly operated to feed the adhesive tape 210 at a high speed, the adhesive tape 210 is prevented from falling off between the pressing roller 66 and the flat side surface 50.

Further, the pressure roller 66 is attached to the adhesive tape 21.
The pressing force exerted on 0 and the support 21 of the adhesive tape 210
2 by the frictional force between the flat side surface 50 and the adhesive tape 2
10 is the second unless a predetermined tensile force in the longitudinal direction is applied.
It is difficult to move forward and backward on the guide passage 64.
Therefore, the adhesive tape 210 stays in the second guide passage 6 until the next work is started after one sticking work is completed.
4 is easily held in the state shown in FIG. 5, for example, to prevent the liner-attached adhesive tape 200 from being unwound onto the tape roll 202. At the same time, the first guide surface 48 and the second guide surface 54 of the guide passage 42 and the liner-attached adhesive tape 20.
In cooperation with the mutual interference action with 0, unnecessary feeding of the liner-attached adhesive tape 200 from the tape roll 202 is prevented, and the liner-attached adhesive tape 20 from the guide passage 42.
The loss of 0 is surely prevented. In this way, the clamping means 18
According to the above, the tape dispenser 10 is always placed in the adhering work preparation state, and the next adhering work can be started quickly and accurately.

In order to improve such a sticking preparation action, the sandwiching means 18 is further provided on the pressing roller 66, and the detent (stops the rotation of the shaft 74 in the clockwise direction (arrow D in FIG. 5). (Not shown) may be optionally provided.

In order to securely hold the adhesive tape 210 that advances at a high speed along the second guide passage 64 between the pressing roller 66 and the flat side surface 50, the holding means 18 is further provided.
A pair of guide walls 86 extending substantially parallel to the main surface 22 of the supporting portion 20 from the flat side surface 50 can be selectively provided at least at a portion sandwiching the adhesive tape 210.
These guide walls 86 are adjacent to and opposed to both side edges of the adhesive tape 210 which define the second guide passage 64 between them and extend in the longitudinal direction of the adhesive tape 210.
Surely prevent the falling off. At least the support portion 20
It is preferable that the guide wall 86 on the side adjacent to has a thickness substantially the same as the thickness of the substrate portion 24a of the roll carrier 24.

As described above, the pressing roller 66 is also a constituent element of the separating means 16, but especially from the liner-attached adhesive tape 200 which advances in the guide passage 42 at high speed.
In order to reliably separate 06, it is preferable to arrange the adhesive tape with liner 200 on the extension of the straight path in the guide passage 42. More specifically, the rotation axis of the pressing roller 66 is preferably the intersection edge 5 of the first protrusion 38.
From the plane connecting 6 and the intersecting edge portion 60 of the second protrusion 40,
It is arranged at a position slightly displaced from the second protrusion 40 side. With such a configuration, even when the adhesive tape with liner 200 is fed out at a high speed, the liner 206 separated from the adhesive tape 210 collides with the pressing roller 66 and a gap between the pressing roller 66 and the stationary table 76. It is reliably ejected from the tape dispenser 10 through 68.

The tape dispenser 10 is further provided with a feeding portion 88 provided on the downstream side of the holding means 18 in the tape advancing direction.
Is provided. The delivery unit 88 further facilitates the delivery of the adhesive tape 210 that has passed through the holding means 18 from the tape dispenser 10 while holding it in a flat shape. In the illustrated embodiment, the delivery unit 88 includes a delivery roller 92 that is rotatably supported by a shaft 90 provided upright on the support unit 20 of the base 12.

The shaft 90 is fixedly disposed substantially orthogonal to the main surface 22 of the supporting portion of the base 12, that is, substantially orthogonal to the advancing direction of the adhesive tape 210 in the second guide passage 64. The delivery roller 92 includes a cylindrical outer peripheral surface 94 having an axial length corresponding to at least the entire width of the adhesive tape 210. At the outer peripheral surface 94, the entire width of the support 212 of the adhesive tape 210 that has passed through the holding means 18. It is possible to contact it. Therefore, when the adhesive tape 210 is delivered, if the support 212 of the adhesive tape 210 is brought into contact with the outer peripheral surface 94 of the delivery roller 92 by appropriately operating the tape dispenser 10, the delivery roller 92 will be attached while rotating about the shaft 90. Supports tape 210, and thus adhesive tape 2
Hold 10 flat.

The delivery roller 92 is preferably an outer peripheral surface 94.
Has an adhesive portion (not shown) on at least a part thereof to make adhesive contact with the support 212 of the adhesive tape 210 over its entire width. According to such a configuration, the adhesive tape 210
The adhesive tape 210 can be more surely held in a flat shape when the sheet is sent. Further, when the adhesive tape 210 is delivered while being stretched, it is possible to supplementarily prevent vertical wrinkles from occurring in the adhesive tape 210 that has passed through the holding means 18. Further, after the sticking work is completed, the adhesive tape 210 retracts through the second guide passage 64 and the guide passage 42 and the tape roll 20.
It can prevent being rewound to 2.

The delivery section 88 is preferably, as shown,
It is arranged at the longitudinal end of the support 20 of the base 12 opposite to the roll carrier 24. As a result, the delivery section 88 can be brought as close as possible to the target surface (not shown) to which the adhesive tape 210 is attached, and as a result, the adhesive tape 210 can be delivered while being stretched. It is possible to effectively prevent the generation of vertical wrinkles. Further, preferably, the support portion 20 of the base portion 12 has an inclined edge portion 20c at a portion adjacent to the delivery portion 88. Thereby, when the delivery portion 88 is brought close to the target surface (not shown), careless contact between the tape dispenser 10 and the target surface can be prevented.

An example of a work procedure for sticking the adhesive tape 210 on the target surface using the tape dispenser 10 described above will be described below. First, the tape roll 202 is mounted on the roll carrier 24 of the base 12, and the tip of the adhesive tape 200 with liner is pulled out from the tape roll 202 and passed through the guide passage 42. Next, adhesive tape with liner 200
Is separated into the liner 206 and the adhesive tape 210, and the pressing roller 66 is pushed down in the counterclockwise direction with respect to the shaft 78, so that only the adhesive tape 210 is separated from the pressing roller 66 and the second.
It is inserted between the flat side surface 50 of the protrusion 40. On the other hand, the liner 206 extends outward from the gap 68 between the pressing roller 66 and the base 76.

In order to facilitate the arrangement of the adhesive tape 210 and the liner 206, the pressing roller 66 is urged by the urging member 80, and the pressing roller 66 is
The support by the arm 72a of the book has an advantageous effect. Also,
The substrate portion 24a and the claw 32 of the roll carrier 24, a pair of guide walls 58 that define an auxiliary passage 59 of the first protrusion 38,
The pair of guide walls 86 that define the second guide passage 64 of the second protrusion 40 facilitates the feeding of the liner-attached adhesive tape 200 in parallel to the main support surface 22 of the substrate 12 and accurately.

In this state, the pressing roller 66 is returned to its original position by the urging force of the urging member 80, and the adhesive tape 21 is pressed under a predetermined pressure.
0 is sandwiched between the pressing roller 66 and the flat side surface 50. The tip of the adhesive tape 210 is further pulled from there to tension the adhesive tape with liner 200 in the guide passage 42, and the tip of the adhesive tape 210 is adhesively held on the outer peripheral surface 94 of the delivery roller 92 with the adhesive portion.
Thus, the preparation for the sticking work is completed (Fig. 1).

The operator holds the tape dispenser 10 with one hand and pulls out the adhesive tape 210 from the tape dispenser 10 in the preparation state for the sticking work with the other hand, and sticks the tip of the sticky tape 210. Stick on the target surface. Subsequently, when the adhesive tape 210 is attached along the straight line path on the target surface, the tape dispenser 10 is pulled away from the target surface without touching the tape roll 202 with the hand holding the tape dispenser 10. With this operation, the adhesive tape 210 is continuously delivered from the tape dispenser 10 while the liner 206 is automatically separated from the adhesive tape 200 with liner at the cross edge portion 60. Therefore, the worker attaches the adhesive tape 210 to the target surface with the other hand.

When sticking the adhesive tape 210 on the target surface along various bending paths, the operator brings the hand holding the tape dispenser 10 into contact with the tape roll 202 to rotate the tape roll 202. Then, the tape dispenser 10 is operated so as to be separated from the target surface in that state. As a result, the adhesive tape 210 arranged between the tape dispenser 10 and the target surface is stretched. Therefore, the operator attaches the adhesive tape 210 stretched so as to be able to follow the desired bending path with the other hand so as not to cause wrinkles or creases on the target surface. At this time, by the action of the pressing roller 66 and the sending roller 92,
Since the adhesive tape 210 is held flat and does not cause vertical wrinkles or self-adhesion even when stretched, the adhesive tape 2
It is possible to easily and accurately attach 10 to the target surface with one hand.

The adhesive tape 210 for the target surface
In the case of both the straight path and the curved path, the positioning is performed after attaching the tip of the adhesive tape 210 to the target surface,
This can be easily performed by stopping the rotation of the tape roll 202 with the hand holding the tape dispenser 10 and moving the tape dispenser 10 laterally in that state.

In the tape dispenser 10,
Without mounting the tape roll 202 on the roll carrier 24,
The strip-shaped adhesive tape with liner stored in sheet form is arranged along the upper flat side surface 26 of the roll carrier 24, the auxiliary passage 59 of the first protrusion 38, and the guide passage 42, and in the same manner as above. By placing the adhesive tape with liner in a sheet form in a preparation state for sticking work, it is possible to continuously deliver the liner while automatically separating the liner.

The tape dispenser according to the present invention can take various forms other than the above. For example, as shown in FIG. 6, the base portion has a substrate portion 100a attached to the main surface 22 of the supporting portion 20, and a substantially circular planar rotating portion 100b rotatably supported by the substrate portion 100a. A roll carrier 100 can be provided. In this case, the rotating portion 100b contacts the inner peripheral surface 208 of the core 204 of the tape roll 202 shown in FIG. The roll carrier 100 has the same structure as the roll carrier 24 of FIG.
A claw 32 protruding from a part of the circumferential surface 102 and engaged with the core 204 of the tape roll 202, and a recess or a through hole 36 for engaging a finger when an operator grips the roll carrier 100 are provided. it can. Also, the rotating part 100b
From the tape roll 202 to the liner adhesive tape 20
A detent (not shown) may be provided so as to rotate only in the direction of feeding 0.

A tape roll having no core 204 is mounted on the roll carrier 100, or the rotating part 100 is used.
The adhesive tape 200 with a liner can be directly wound around the circumferential surface 102 of b. Such a configuration is effective from the viewpoint of resource saving. In particular, when the rotating portion 100b is detachable from the substrate portion 100a, the tape dispenser manufacturer supplies the user with the adhesive tape 200 with a liner directly wound around the rotating portion 100b as a product, and the user supplies the liner. A circulation system is established in which the manufacturer collects the rotating portion 100b and supplies a new product when the attached adhesive tape 200 is used up.

As shown in FIG. 7, the sandwiching means is composed of a pressing roller 10 which is axially mounted on a stationary table 76 provided on the first projecting portion 38.
4 and the support portion 20 of the base portion 12 parallel to the pressing roller 104.
And an auxiliary roller 106 that is pivotally mounted on the. In this case, the auxiliary roller 106 is the pressing roller 104.
A supporting wall that abuts against. The pressing roller 104 and the auxiliary roller 106 are the second constituent elements of the separating means.
It also acts as a guide. An edge portion which is another component of the separating means is adjacent to the auxiliary roller 104, and the supporting portion 20.
It can be formed from the sharp edge 110 of the second protrusion 108 protruding from the edge.

Pressing roller 104 and auxiliary roller 106
Includes cylindrical outer peripheral surfaces 112 and 114 each having an axial length corresponding to at least the entire width of the adhesive tape 210. Further, the pressing roller 104 is rotatably supported near the tip of the support arm member 116 via a shaft 118, and the auxiliary roller 106 is above the shaft 118 and the main surface 22 of the support portion 22.
It is rotatably supported by a shaft 120 that is fixed to the support portion 20 at right angles to the shaft 118 and in parallel with the shaft 118. Support arm member 11
6 is rotatably supported by the stationary table 76 via a shaft 122.

The pressing roller 104 can be formed by a cylindrical core 124 fixed concentrically to the shaft 118 and a cylindrical coating 126 fixed concentrically to the outer peripheral surface of the cylindrical core 124. Similarly, the auxiliary roller 106 can be formed of a cylindrical core 128 that is concentrically fixed to the shaft 120 and a cylindrical coating 130 that is concentrically fixed to the outer peripheral surface of the cylindrical core 128. Preferably, the cylindrical coatings 126, 130 are formed from an elastically deformable material. In this case, if the support arm member 116 can be fixed to the stationary base 76 by forming the shaft 122 with, for example, bolts and nuts, the pressing roller 104 and the auxiliary roller 106 can be used.
Respective cylindrical coatings 126 when abutting each other,
Due to the elastic deformation of 130, a desired pressing force for holding the adhesive tape 210 in a flat shape can be obtained. In this case, the adhesive tape 2 with liner after the attachment work is completed.
In order to prevent unnecessary rewinding of 00, the pressing roller 1
It is desirable that at least one of 04 and the auxiliary roller 106 is provided with a detent (not shown) for stopping the rotation in the direction of retracting the adhesive tape 210.

The holding means is an element that allows the adhesive tape 210 to move forward while being in contact with the adhesive layer 214 in order to hold the adhesive layer 214 of the adhesive tape 210 in a flat state, as described above. It is preferable to have a rotating element (eg, pressing rollers 66, 104) that is rotatable about an axis orthogonal to the forward direction of 210. As such a rotating element, a polygonal prism-shaped rotating body such as a regular decagonal column having an axial length corresponding to at least the entire width of the adhesive tape 210, a spur gear having the same length, and a gear-shaped rotating body such as a worm. It is possible to employ a rotating body group formed by arranging a plurality of these rotating bodies including cylindrical rollers in parallel, a conveyor-like feeding member formed by winding a belt around such rotating body group, and the like.

As shown in FIG. 7, the delivery section can be provided with a column 132 fixedly erected on the support section 20 of the base section 12. The support column 132 is fixedly disposed substantially orthogonal to the main surface 22 of the support portion, and includes a circular arc surface 134 having an axial length corresponding to at least the entire width of the adhesive tape 210. The arcuate surface 134 of the support column 132 can contact the entire width of the support body of the adhesive tape 210 that has passed through the holding means. Therefore, when the adhesive tape 210 is delivered, if the tape dispenser 10 is appropriately operated to bring the support of the adhesive tape 210 into contact with the arc surface 134 of the support column 132, the adhesive tape 210 slides on the arc surface 134. Holds flat.

As shown in FIG. 8, the base portion can further be provided with a cutter blade 136 for cutting the adhesive tape 210, which has been attached, to a desired length. Cutter blade 1
36 is arranged adjacent to the second projecting portion 40 so as to be movable in the longitudinal direction of the support portion 20, and the inclined edge portion 20 c of the support portion 20.
It is preferable that the cutting edge can be taken in and out.

As shown in FIG. 9, the guide means is arranged in two rows on the main surface 22 of the supporting portion 20 along the respective surfaces substantially the same as the first guide surface 48 and the second guide surface 54 shown in FIG. It can be composed of a plurality of protruding columnar protrusions 138 and a guide passage 140 defined between the protrusion rows and similar to the guide passage 42 of FIG. In this case, the columnar protrusion 138a arranged at the tape entry end of the guide passage 140 has the same tape tensioning action as the cross edge 56 shown in FIG. Further, the columnar protrusion 13 arranged at the tape feeding end of the guide passage 140.
8b has the same tape separating action as the cross edge 60 shown in FIG. That is, the columnar protrusion 138b is also a component of the separating means. At least the columnar protrusion 138
If a and 138b are formed as a rotating roll having an adhesive portion on the outer peripheral surface, the adhesive tape with liner is used as the guide passage 1.
Advantageously, it can be held exactly at 40.

As shown in FIG. 9, the separating means is a columnar projection 138b arranged at the downstream end of the guide means and a rotatable portion fixedly supported on the main surface 22 of the supporting portion on the upstream side of the pressing roller 66. The separation roller 142 can be used. In this case, by passing the adhesive tape 210 having no liner 206 between the columnar protrusion 138b and the separation roller 142, the support 2 of the adhesive tape 200 with liner is formed.
12 (FIG. 5) is brought into contact with the columnar projection 138b and only the adhesive tape 210 is bent, whereby the liner 206 is automatically separated from the adhesive tape 200 with liner as it advances. In this case, the holding means is the pressing roller 6
6 and a supporting wall 144 fixedly provided on the main surface 22 of the supporting portion so as to face the pressing roller 66.

The tape dispenser according to the present invention can be manufactured from various materials by various methods. Figure 1
In the embodiment, the supporting portion 20, the roll supporting portion 24, and the claw 3 are provided.
2, the first projecting portion 38, the second projecting portion 40, the stationary table 76, the support arm member 72, and the shafts 74, 78, 90 are made of a polymer material such as polyacetal copolymer, MC nylon (trademark), or aluminum. It can be manufactured from metal materials. Particularly, the polyacetal copolymer is a preferable material because it can reduce the weight of the tape dispenser, improve the mechanical strength, and prevent the adhesive tape from breaking due to the low friction.

The above-mentioned components can be connected to each other by integral molding, bolt / nut, screw structure, adhesive, double-sided adhesive tape, or the like. In particular, it is preferable that the roll carrying portion 24 be detachably attached to the support portion 20 of the base portion 12 with a bolt or the like. In this case, in order for the tape dispenser to carry tape rolls with different core inner diameters,
This is convenient because it can be replaced as appropriate with another roll carrier having a radius of curvature corresponding to the desired inner diameter of the core.

In particular, the bearing surface 25 of the roll carrier 24
The circular arc side surface 28 is preferably formed of a low friction material such as a fluoropolymer such as polytetrafluoroethylene, a polyacetal copolymer, or polyethylene in order to smoothly rotate the tape roll 202. On the contrary, by increasing the friction between the circular arc side surface 28 and the inner peripheral surface 208 of the core of the tape roll 202 to slow down the rotation of the tape roll 202, the tension of the adhesive tape with liner 200 in the guide passage 42 is increased. It can also be increased.

The pressing roller 66 can be formed of a cylindrical core 82 made of a metal material such as aluminum and a cylindrical coating 84 made of a highly peelable polymer material such as polytetrafluoroethylene rubber. Alternatively, a cylindrical core 8 made of urethane rubber
The cylindrical coating 84 may be formed by winding an adhesive tape having a polytetrafluoroethylene base material around 2. The delivery roller 92 can be formed by including a plastic or metal core and a rubber surface layer having a large friction coefficient. Alternatively, the core may be wrapped with a double-sided adhesive tape to form a surface layer having adhesiveness.

The tape dispenser according to the present invention can have various sizes and shapes. The preferred dimensions are
For example, in the tape dispenser 10, the longitudinal dimension L of the base 12 is 100 mm to 300 mm and the transverse dimension W is 20.
mm to 70 mm, and the thickness D is 3 mm to 10 mm. The diameter d of the through hole 36 of the roll holding portion 24 is 10 mm to 70 mm, the radius of curvature r of the arc side surface 28 is 10 mm to 60 mm, and the raised portion 24b.
The projecting height h of is 5 mm to 50 mm. The crossing angle α of the crossing edge portion 56 of the first projecting portion 38 is 90 ° to 150 °, and the crossing angle β of the crossing edge portion 60 of the second projecting portion 40 is 10 ° to 170 °.
The distance S between the first guide surface 48 and the second guide surface 54 of the guide passage 42 is 2 mm to 10 mm. The outer diameter O1 of the pressing roller 66 is 10 mm to 30 mm, and the axial length P1 is 10 mm to 45.
mm, the outer diameter O2 of the delivery roller 92 is 5 mm to 15 mm, and the axial length P2 is 10 mm to 55 mm.

The adhesive tape 200 with a liner which can be used in the tape dispenser 10 has a width of 5 mm to 40 mm, and the thickness of the support 212 of the adhesive tape 210 is 10 μm to 150 μm.
m, the pressure-sensitive adhesive layer 214 has a thickness of 5 μm to 100 μm, and the liner 206 has a thickness of 10 μm to 150 μm. The winding length of the liner-attached adhesive tape 200 on the tape roll 202 is 2 m to 50 m. The pressing force of the pressing roller 66 (that is, the repulsive force of the urging member 80) that can reliably hold the liner-attached adhesive tape 200 even when the tape dispenser 10 is roughly operated is preferably 0.29 N to 9 N. 8N. If the pressing force is smaller than this range, it becomes difficult to prevent vertical wrinkles when the adhesive tape is stretched, and if it is larger than this range, it becomes difficult to smoothly deliver the adhesive tape. The tensile force applied to the adhesive tape with liner 200 in the longitudinal direction is preferably 0.10N to 5.9N.

When the adhesive tape 210 is made of an extensible adhesive tape, the tape dispenser 10 may be used to make a two-dimensional sharp bend at a corner of a triangular or quadrangular flat plate such as a road sign. The adhesive tape 210 can be continuously attached without causing wrinkles or peeling. Such a stretchable pressure-sensitive adhesive tape is a pressure-sensitive adhesive comprising a support made of a film having an elongation at break of 100% or more when the thickness is 50 μm or more, and a pressure-sensitive adhesive that easily extends in accordance with the extension of the support. With layers. The elongation at break is about 2 mm at room temperature (about 2 mm) for a tape-shaped sample with a width of 25 mm.
It is obtained by measuring at a tensile speed of 300 mm / min by a tensile tester in an environment of 5 ° C.) normal humidity (about 50% RH). Such a support film can be formed from a copolymer containing a polyethylene unit in its molecule such as an ethylene-acrylic acid copolymer, an aliphatic polyurethane resin, an ionomer resin, or the like.

In particular, a film made of an ethylene-acrylic acid copolymer has excellent mechanical strength and transparency,
It can be suitably used as a support for a protective tape around the contour of a road sign. The carboxyl group derived from the acrylic acid of the ethylene-acrylic acid copolymer molecule forms an effective hydrogen bond between adjacent polymer molecules, causes internal toughness in the film, and improves tensile strength. An extensible pressure-sensitive adhesive tape having such a film containing an ethylene-acrylic acid copolymer as a support is disclosed in, for example, JP-A-62-184080.

When this extensible adhesive tape is used for adherends placed outdoors such as road signs, it may contain a stabilizer such as an ultraviolet absorber or an antioxidant in order to improve weather resistance. preferable. As the stabilizer, one or more kinds of compounds used for ordinary polyethylene-containing polymers, for example, hindered phenol type, hindered amine type, organic phosphite type, organic thioether type, metal salt of higher fatty acid, etc., are used. it can. The content of the stabilizer is selected within a range that does not impair elongation and transparency,
For example, it is 0.01 to 10 parts by weight with respect to 100 parts by weight of the polymer.

The content of acrylic acid in the ethylene-acrylic acid copolymer is, for example, 3 to 20% by weight. If it is less than this range, the mechanical strength and transparency tend to be poor, and if it exceeds this range, the elongation at break tends to decrease. As the pressure-sensitive adhesive, for example, an acrylic pressure-sensitive adhesive is suitable from the viewpoint of the adhesive force and the followability to the elongation of the support.

[0079]

EXAMPLE A tape dispenser 10 has a base 12
Has a longitudinal dimension L of 220 mm and a transverse dimension W of 45 m
m, the thickness D is 7 mm, the diameter d of the through hole 36 of the roll holding portion 24 is 30 mm, the radius of curvature r of the arc side surface 28 is 38 mm, the protruding height h of the raised portion 24b is 32 mm, and the crossing edge of the first protruding portion 38 is The intersection angle α of the portion 56 is 120 °, and the second protrusion 40
The crossing angle β of the crossing edge portion 60 is 120 °, and the guide passage 42
The distance S between the first guide surface 48 and the second guide surface 54 is 5 mm,
An outer diameter O1 of the pressing roller 66 was 20 mm, an axial length P1 thereof was 25 mm, an outer diameter O2 of the delivery roller 92 was 10 mm, and an axial length P2 thereof was 35 mm.

An acrylic adhesive (isooctyl acrylate / acrylic acid = 94/6) was applied to a liner coated with silicon and dried, and Primacor 3340 (trade name) manufactured by Dow Chemical Co. was formed to a thickness of 75 μm. The extruded film was affixed with a corona treated product to form a stretchable pressure-sensitive adhesive tape with a liner having a width of 15 mm.

The stretchable pressure-sensitive adhesive tape with liner is attached to the tape dispenser 10 having the above-mentioned size, and the stretchable pressure-sensitive adhesive tape 300 with the liner automatically separated by operating the tape dispenser 10 as described above is shown in FIG. The road sign 302 having a triangular shape was attached to the peripheral edge portion of the road sign so as to straddle the road sign 302 and the retroreflective sheet 304. As a result, the sticking workability is extremely good, and the stretchable pressure-sensitive adhesive tape 300 can be stretched even along the corners 306 of the triangle without causing wrinkles or folds and can be stuck quickly and accurately. It was

[0082]

As is apparent from the above description, according to the present invention, the liner-attached pressure-sensitive adhesive tape can be easily and continuously formed without delay along a bending path extending by bending variously on the target surface. Provided is a tape dispenser that functions as a sticking aid that enables accurate sticking. This tape dispenser makes it possible to attach the stretchable adhesive tape to various bending areas on the target surface while avoiding the occurrence of vertical wrinkles or self-sticking when the tape is stretched.

[Brief description of drawings]

FIG. 1 is a front view showing a tape dispenser according to an embodiment of the present invention in a state in which a tape roll is carried and a bonding operation is prepared.

FIG. 2 is a front view showing the tape dispenser of FIG. 1 with a tape roll removed.

FIG. 3 is a plan view of the tape dispenser of FIG. 2 viewed from an arrow III.

FIG. 4 is a bottom view of the tape dispenser of FIG. 2 viewed from arrow IV.

5 is a partially enlarged cross-sectional view of the tape dispenser of FIG.

6A and 6B are diagrams showing a roll carrier of a tape dispenser according to a modified example, and FIG. 6A is a front view and FIG. 6B is a plan view.

FIG. 7 is a partially enlarged front view showing a holding means and a feeding means of a tape dispenser according to a modified example.

FIG. 8 is a partially enlarged front view of a tape dispenser according to a modification.

FIG. 9 is a partially enlarged front view of a tape dispenser according to a modification.

FIG. 10 is a diagram showing an application example of a sticking work using a tape dispenser, (a) a plan view of a road sign, and (b) an XX cross-sectional view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Tape dispenser 12 ... Base part 14 ... Guide means 16 ... Separation means 18 ... Clamping means 20 ... Supporting part 24 ... Roll carrying part 38 ... First protruding part 40 ... Second protruding part 42 ... Guide passage 48 ... First guide surface 54 ... Second guide surface 62 ... Second guide means 64 ... Second guide passage 66 ... Pressing roller 80 ... Biasing member 88 ... Sending section 92 ... Sending roller 200 ... Liner adhesive tape 202 ... Tape roll 206 ... Liner 210 ... Adhesive tape

Claims (10)

[Claims] 1. A hand-operable tape dispenser for continuously feeding a liner-attached pressure-sensitive adhesive tape obtained by attaching a liner to a pressure-sensitive adhesive layer provided on one surface of an extensible belt-shaped support while automatically separating the liner. A base part, guide means provided on the base part for guiding the adhesive tape with a liner that advances under tensile force in the longitudinal direction in a predetermined direction, and the base part on the downstream side in the tape advancing direction of the guide means. And separating means for automatically separating the liner from the adhesive tape with liner that advances along the guide means, and a separating means that is provided at the base on the downstream side of the separating means in the tape advancing direction and passes through the separating means. And a liner-free adhesive tape for holding the adhesive tape so that the adhesive layer of the adhesive tape is held flat while allowing the adhesive tape to move forward,
A tape dispenser comprising: 2. The holding means includes a support wall provided on the base and a length of the pressure-sensitive adhesive tape which is supported by the base and has no liner and which corresponds to at least the entire width thereof under a predetermined pressure. A rotatable pressing roller elastically abutted against the supporting wall, the pressing roller entering the space between the supporting wall and the pressing roller without having a liner. The tape dispenser according to claim 1, wherein the tape dispenser is in contact with the layer over the entire width of the pressure-sensitive adhesive layer, and the support of the adhesive tape is pressed against the supporting wall over the entire width of the support. 3. The tape dispenser according to claim 2, wherein the holding means further includes a biasing member that elastically biases the pressing roller toward the supporting wall. 4. The sandwiching means is adjacent to both side edges extending in the longitudinal direction of the adhesive tape passing through the contact portion without a liner at least at the contact portion between the supporting wall and the pressing roller. The tape dispenser according to claim 2 or 3, further comprising guide walls extending to face each other. 5. The tape dispenser according to claim 2, wherein the support wall comprises an auxiliary roller axially attached to the base in parallel with the pressing roller. 6. The delivery system further comprises a delivery unit provided on the base portion on the downstream side in the tape advancing direction of the sandwiching means and delivering the adhesive tape that has passed through the sandwiching means while holding it in a flat state. The tape dispenser according to any one of 1. 7. The delivery section comprises a delivery roller which is supported by the base section and rotates with an axis orthogonal to the forward direction of the adhesive tape that has passed through the sandwiching means. 7. The tape dispenser according to claim 6, wherein the tape dispenser has an adhesive portion on at least a part of the outer peripheral surface and is in adhesive contact with the support of the adhesive tape over the entire width of the support. 8. The guide means comprises a guide passage defined by two mutually opposing fixed walls provided on the base, and the distance between the two fixed walls is set along the guide passage. The tape dispenser according to any one of claims 1 to 7, wherein the tape dispenser is set to have a thickness larger than a thickness of the adhesive tape with a liner and a width smaller than the width of the adhesive tape with a liner. 9. The separating means has an end edge portion provided on one of the fixed walls facing the support of the adhesive tape with liner, at the downstream end of the guide passage in the tape advancing direction, and the end edge portion. Provided on the base portion on the downstream side of the tape advancing direction,
A support of the adhesive tape with liner is brought into contact with the edge portion,
9. A second guide means for bending the pressure-sensitive adhesive tape having no liner and guiding the pressure-sensitive adhesive tape in a direction intersecting the forward direction of the pressure-sensitive adhesive tape with liner in the guide passage.
The tape dispenser described in. 10. A roll carrier provided on the base upstream of the guide means in the tape advancing direction and rotatably carrying a tape roll formed by winding the adhesive tape with liner in a roll shape. The tape dispenser according to any one of 1 to 9.