JP3010760U - Cutter device for adhesive tape magazine - Google Patents

Abstract

(57) [Abstract] [Purpose] To make it possible to easily fix the protective cover for protecting the cutter blade of the cutter device when it is not in use. [Structure] A suction piece 32 for adsorbing the adhesive tape 15, and a cutter blade 33 protruding from the suction piece with its blade edge facing
While the short side portion 312 is fixed in contact with the cutter blade in the L shape which is bent to the long side portion 3 and the long side portion 3,
A pressing blade 31 in which 11 is extended in the opposite direction to the cutting edge of the cutter blade, and a pivoting shaft rotatably inward of the bending portion of the pressing blade, and the other end of the cutter blade 31 in response to the rotation. And a protective cover 20 that exposes the blade edge and is displaced to a position along the pressing blade, and the protective cover 20 covers the blade edge of the cutter blade at the outer edge of the protective cover 20 on the pivot side. There is provided a ridge 226 that comes into pressure contact with the surface of the pressing blade when the rotating blade is rotated to the open position and the position along the pressing blade.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cutter device in an adhesive tape magazine, and more specifically, in a cutter device in an adhesive tape magazine used for sealing work such as a carton case, the structure of a protective cover that covers the blade for safety when not in use. To improve.

[0002]

[Prior art]

 Conventionally, in this type of cutter device, as shown in FIGS. 5 and 6, a cutter device 12 is attached to an adhesive tape magazine 10. In the figure, the magazine main body 11 provided with a handle 112 supports a roll-shaped adhesive tape 15 by a take-up shaft 113 rotatably mounted on the rear portions of the side frames 111 on both sides. The adhesive tape 15 is sent to an adhesive surface 100 such as a carton case via a pressure roller 114 rotatably provided in the front part of the magazine body 11 and a cutter device 12.

The cutter device 12 includes a suction piece 120 that is provided in the tangential direction of the pressure roller 114 and that is made of an insulating material such as resin and that has a flat plate portion 121 that is charged electrostatically by friction with the adhesive tape 15. The adhesive tape 15 is adsorbed with its adhesive surface facing up, and the adhesive tape 15 is rubbed and moved along the adhesive surface 100 of the carton case arranged approximately in the extension line direction of the handle 112 to move the seal tape. It is designed so that the working work is performed.

After the sealing, when the handle 112 is lifted by a required angle and tilted, the suction piece 120 rises and abuts on the cutter blade 123 protruding from the bent elbow portion of the bent mounting portion 122 to bend the adhesive tape 15. Then, the entire magazine 10 is twisted, and the adhesive tape 15 is cut by the blade 123.

Further, the suction piece 120 is provided with a longer pressing blade 124 which is bent in a direction opposite to the flat plate portion 121 at a substantially right angle from the mounting portion 122. Since the pressing blade 124 has a long length, it has flexibility, and the adhesive tape 15 adhered to the adhesion surface 100 with the flexibility is further rubbed from above to bring it into close contact with the whole.

Inside the bent elbow portion of the pressing blade 124 and the mounting portion 122, a protective cover 14 whose one end side 140 is curved is formed, and the other end side 141 is rotatably pivoted from both sides. There is. The width of the protective cover 14 is such that the curved side edge 140 just covers the blade 123 from above when the blade is rotated to the side of the blade 123, and during the sealing operation, the adhesive is stretched and tensioned to a flat surface. It is pushed up by the tape 15 and slidably contacts the back side of the adhesive tape 15 in the state shown by the alternate long and short dash line in the figure.

[0007]

[Problems to be solved by the device]

 According to the above-described conventional cutter device 12, the protective cover 14 fulfills the protective function only when it is rotated on the blade 123 by its own weight. Also, since the adhesive tape 15 has not been pulled out yet at the start of the sealing work, it is necessary to rotate it by hand to withdraw it from the blade 123, and to support it until the adhesive tape 15 is pulled out. However, it is inconvenient and time-consuming.

In addition, the above operation needs to be repeated every time the work is restarted after cutting the adhesive tape 15, which hinders the smooth progress of the work and reduces the efficiency. In addition, since it is rotatable when not in use, it rotates to the side away from the tip of the blade 123 depending on how the tape magazine is placed and the posture it holds, and does not function as a protective cover, so it is safe. Problems such as inability to play the role of protection arise.

The present invention has a problem with the cutter device in the conventional adhesive tape magazine, that is, the protective cover of the cutter blade can be freely rotated, so that the cutter cover rotates in the direction in which it is covered by the blade due to its own weight during use. Therefore, it may hinder smooth work and, on the contrary, does not necessarily protect the cutter blade securely when not in use, which is not sufficient in terms of safety and also in terms of workability. The purpose of the present invention is to provide a cutter device that is excellent in both safety and workability, with the aim of eliminating the drawbacks of having to manually rotate the protective cover each time.

[0010]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention according to claim 1, wherein the cutter blade of the cutter device attached to the adhesive tape magazine is covered with a protective cover when not in use, and exposed from the protective cover when in use. An adsorption piece that adsorbs the adhesive tape by static electricity generated by friction, a cutter blade that protrudes with the cutting edge facing the adsorption piece, and an L shape in which a flat plate is bent into two long and short portions that are substantially orthogonal to each other. While holding in contact with the cutter blade, the pressing blade has a long side extending in the opposite direction to the cutting edge of the cutter blade, and one end side of which is rotatably pivoted near the inside of the bending portion of the pressing blade. Then, depending on the mounting and rotation of the cutter blade, the other end of the cutter blade may be displaced so that it covers the blade edge of the cutter blade and the blade edge is exposed to the position along the pressing blade. A protective cover is provided, and when the protective cover is rotated to a position covering the cutting edge of the cutter blade and a position along the pressing blade, the outer surface of the pivot side end of the protective cover is pressed against the surface of the pressing blade. The present invention provides a cutter device for an adhesive tape magazine, which is characterized in that it is provided with a ridge.

The protective cover is provided with a claw piece of a required length protruding along the longitudinal direction of the outwardly facing surface at the projecting edge on the side that is rotated and covers the cutter blade, and the claw piece is operated during operation. I'm pushing it. (Claim 2) Further, a ring-shaped bearing is provided on the protective cover, and the short axis of the pressing blade is pivotally supported by the ring-shaped bearing to pivotally support it, and one point of the outer ridgeline of the ring-shaped bearing is supported. The chamfer is formed into a beveled surface so that the short axis of the pressing blade can be easily fitted into the ring-shaped bearing. (Claim 3)

[0012]

[Action]

 In the device according to claim 1, both when the protective cover is rotated to a position covering the cutting edge of the cutter blade and to a position substantially along the pressing blade, the outer peripheral portion of the pivot-side end of the protective cover is shown. Since the ridges provided on the press contact the surface of the pressing blade, the protective cover is fixed so that it does not rotate under its own weight unless it is manually operated. In this way, after the protective cover is rotated, the protrusion on the outer edge on the pivot side is pressed against one of the surfaces of the pushing blade, and the protective cover is rotated by its own weight unless it is manually operated. Since it can be fixed so that it will not move, it will be locked and fixed at the position of the cutter blade when not in use, and the protection function will work perfectly and safety is high. On the other hand, during the sealing work, since the work is fixed and locked at a position along the pressing blade, the work can be performed smoothly and the work performance is improved.

When the pawl piece is provided as described in claim 2, the protective cover can be easily displaced from the unused position to the used position by pushing the pawl piece. When the protective cover is pivoted on the pressing blade as described in claim 3, it can be attached without the need for an assembling jig, and it does not loosen or come off after the attachment.

[0014]

【Example】

 An embodiment of a cutter device in an adhesive tape magazine according to the present invention will be described below with reference to the drawings. Since the structure of the adhesive tape magazine 50 provided with the cutter device 30 of the present invention is substantially the same as the structure of the conventional adhesive tape magazine 10 of FIGS. 5 and 6, detailed description thereof will be omitted. .

As shown in FIG. 1, the cutter device 30 is attached to the adhesive tape magazine 50. In the adhesive tape magazine 50, a reel 514 is provided at the rear of the frame 51 provided at the tip of the handle 512 via a winding shaft 514, and the reel 514 rolls the adhesive tape 15 (not shown). I try to hold the roll. The mounting frame 40 is fixed to the frame 51 at the front part of the frame 51, and the pressing roller 114 and the suction piece 32 of the cutter device 30 are supported by the frame 51 and the mounting frame 40.

The cutter device 30 includes a suction piece 32, a cutter blade 33 having its blade exposed at the end side of the suction piece 32, and a flat plate bent into long and short two portions 311 and 312 which are substantially orthogonal to each other. A pushing blade 31 having a V shape is provided. The pressing blade 31 has its short side portion 312 in contact with and fixed to the cutter blade 33, while the long side portion 311 is extended from the side opposite to the cutting edge of the cutter blade 33. On both sides of the bending elbow of the pushing blade 31, side plates 313 and 313 are provided so as to project from the long side portion 311 to the short side portion 312, and they are inwardly opposed to each other at substantially central positions of the side plates 313. The protruding short shafts 314 and 314 are provided. Each of the short shafts 314 has a tapered taper, and both sides of the short shafts 314 are rotatably pivoted to attach the protective cover 20.

As shown in FIG. 2, the protective cover 20 has protruding edges 22 formed by curving the edges of both long sides of a horizontally flat plate 21 having a width substantially equal to that of the adhesive tape 15 downward at substantially right angles. , 23. The one projecting edge 22 has only one short section in the center so as not to be interfered with by the assembling screw 34 of the pushing blade 31, and both end faces 227, 227 are formed into an arcuate curved surface so as not to interfere with the head of the screw 34. In addition, a longitudinal ridge 226 is formed over the entire length on the outward facing surface.

Notch grooves 221 and 221 are provided near both ends on the extension line of the projecting edge 22, and a ring that pivotally supports the short shafts 314 and 314 of the pressing blade 31 in these notch grooves 221 and 221. Bearings 222 and 222 are provided. The distance between both bearings 222, 222 is slightly shorter than the distance between the tips of both short shafts 314, 314. From the outer peripheral surface of each bearing 222 to the tip surface, one corresponding corner is chamfered to form a slope. 225, the bearings 222 and 222 are fitted into the short shafts 314 and 314 by pressing them into the shaft holes 224 by utilizing the property of elastic deformation of the material.

On the other projecting edge 23, a claw piece 231 having an appropriate length is projected along the longitudinal direction, and an arrow mark 232 indicating the rotating direction of the protective cover 20 is attached.

Next, the operation of the protective cover 20 will be described with reference to FIGS. 3 and 4. The tip end portion of the adhesive tape 15 mounted on the reel 514 of the tape magazine 50 is brought into contact with the suction piece 32 via the pressure contact roller 41 with the adhesive surface of the adhesive piece facing upward, and in the direction of the extension line of the handle 512. When feeding, rubbing and moving along the adhesive surface 100 of a carton case or the like to perform a sealing operation, the fingertips of the fingertips 231 of the protective cover 20 are pressed against the protective cover 20 in the position shown in FIG. Then, the protective cover 20 is rotated in the direction indicated by the arrow 232 and in contact with the long side portion 311 of the pressing blade 31. By this rotation, as shown in FIG. 4, the protective cover 20 is disengaged, the cutting edge of the cutter blade 33 is exposed, and the ridge 226 of the projecting edge 22 of the protective cover is the short side portion of the pressing blade 31. It rotates until it comes into pressure contact with the surface of 312.

During the above-mentioned opening operation, there is little risk of scratching the hand, and during use, the ridge 226 is pressed and locked to the short side portion 312 of the pressing blade 31, and the protective cover 20 is fixed. The protective cover 20 does not move freely and is easy to use.

When not in use, if the protective cover 20 is pivotally operated with the fingertip from the position shown in FIG. 4 toward the edge of the blade of the cutter blade 33, as shown in FIG. The strip 226 is fixed to the surface of the long side portion 311 of the pressing blade 31 by press contact locking. Therefore, even if the entire cutter device 30 is gripped upside down, the protection cover 20 is fixed and the function of protecting the cutter blade is not lost.

[0023]

[Effect of device]

 As is clear from the above description, according to the cutter device of the present invention, the protection cover for protecting the cutter blade is provided on the protection cover when the cutter cover is rotated to operate the use position and the non-use position, respectively. Since the ridge is fixed by pressing it against the pushing blade, it does not move from the operating position by its own weight. Therefore, when not in use, the protection cover can be fixed to the position that covers the cutting edge of the cutter blade to protect the cutter blade reliably, while at the time of use, the blade edge can be exposed and the adhesive tape can be pressed against the adhesive surface. It can be securely fixed to the machine and workability can be improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view of the protective cover of the above embodiment, which is viewed inside out.

FIG. 3 is a cross-sectional view showing a position of a protective cover when the cutter device is not used.

FIG. 4 is a cross-sectional view showing a position of a protective cover when the cutter device is used.

FIG. 5 is a front view of an adhesive tape magazine provided with a conventional cutter device.

FIG. 6 is a partial plan view of FIG.

[Explanation of symbols]

50 ... Adhesive tape magazine 15 ... Adhesive tape 20 ... Protective cover 22 ... Projection edge 222 ... Ring bearing 225 ... Slope 226 ... Projection 231 ... Claw piece 30・ ・ ・ Cutter device 31 ・ ・ ・ Pushing blade 311 ・ ・ ・ Long side part 312 ・ ・ ・ Short side part 314 ・ ・ ・ Short axis 32 ・ ・ ・ Suction piece 33 ・ ・ ・ Cutter blade

Claims (3)

[Scope of utility model registration request] 1. A suction piece for covering a cutter blade of a cutter device attached to an adhesive tape magazine with a protective cover when not in use and exposing it from the protective cover when in use, which attracts the adhesive tape by static electricity generated by friction. And a cutter blade projecting from the suction piece so that the cutting edge faces the flat plate, and a flat plate having an L shape in which two long and short portions that are substantially orthogonal to each other are bent, and the short side portion is fixed in contact with the cutter blade.
A pressing blade having a long side portion extended in the opposite direction to the cutting edge of the cutter blade, and one end side of which is rotatably pivotally attached near the inside of the bending portion of the pressing blade, depending on the rotation. , A protective cover that is displaced to the position where the other end side covers the cutting edge of the cutter blade and the position that exposes the cutting edge and is along the pressing blade, and at the outer edge of the pivot side end of the protective cover, A cutter device in an adhesive tape magazine, characterized in that when the protective cover is rotated to a position covering the cutting edge of the cutter blade and to a position along the pressing blade, a ridge is provided that presses against the surface of the pressing blade. . 2. The protective cover is provided with a claw piece of a required length projecting along a longitudinal direction of a surface facing outwardly on a projecting edge on a side which is rotated and covers the cutter blade. The cutter device in the adhesive tape magazine according to claim 1. 3. A ring-shaped bearing is provided on the protective cover, and a short shaft of the pressing blade is pivotally supported by the ring-shaped bearing to pivotally support the outer ridgeline of the ring-shaped bearing. The cutter device for an adhesive tape magazine according to claim 1, wherein the cutter device is formed on a slope.