JPH05254712A - Tape cutter - Google Patents

Abstract

PURPOSE:To securely cut an adhesive tape by providing on a tape holding cylinder a means to apply a brake to the rotation of an adhesive tape roll in a tape cutter which is provided with the tape holding cylinder where the adhesive tape coiling body is externally fitted, a cutting blade or the like. CONSTITUTION:A tape cutter 1 is provided with a body 11 where a cutting blade 12 of saw-tooth shape is fitted to the outer surface of the edge folded in an approximate U-shape, and a tape holding cylinder 13 where the outer circumferential surface is turret-machined is welded to the other edge of the body 11. A metallic guide roll 14 and an affixing roller 15 made of synthetic rubber are rotatably pivotted between the cutting blade 12 and the tape holding cylinder 13, and a tape suppressing piece 16 is axially provided to the folded edge of the body 11 in a rotatable manner. When in use, after the adhesive tape(t) is pulled out and affixed to a thing to be affixed, the tape suppressing piece 16 is gripped, and cutting is made by setting the cutting blade 12 perpendicular to the adhesive tape(t) while the brake being applied to the pulling-out operation of the adhesive tape(t).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape cutter.

[0002]

2. Description of the Related Art Conventionally, a pressure-sensitive adhesive tape having a natural rubber pressure-sensitive adhesive layer provided on one surface of a support made of a stretched polypropylene film has excellent transparency, tensile strength, impact resistance, cold resistance,
Since it has moisture permeability, it is widely used for packaging. The pressure-sensitive adhesive tape has no hand-cutting property and requires a special cutting tool (cutter), but has a drawback that a sound is generated when it is rewound because of its heavy spreadability. Therefore, in order to eliminate this drawback,
The modified silicone is applied to the back surface of the support as a release agent.

[0003]

However, when a conventional cutter is applied to such an adhesive tape having improved spreadability, the adhesive tape is excessively pulled out or cut when it is attached to an adherend. Sometimes the adhesive tape was pulled out and it was difficult to cut.

An object of the present invention is to solve the above-mentioned conventional problems and to provide a tape cutter capable of braking the rotation of an adhesive tape winding body.

[0005]

According to the invention of claim 1, a tape holding cylinder for externally fitting an adhesive tape winding body, a guide roll,
The invention according to claim 2, wherein the tape holding cylinder is provided with a means for braking the rotation of the adhesive tape winding body, which has an adhesive roll and a cutting blade. It has a tape holding cylinder, a guide roll, a sticking roll and a cutting blade, and is provided with means for braking the rotation of the adhesive tape roll by temporarily stopping the withdrawal of the adhesive tape. , Its gist.

In the present invention, the means for braking the rotation of the adhesive tape winding body is not particularly limited, and, for example, friction between the inner peripheral surface of the core of the adhesive tape winding body and the outer peripheral surface of the tape holding cylinder is provided. Either increasing the force or temporarily stopping the withdrawal of the adhesive tape may be used.

In the present invention, the means for increasing the frictional force between the inner peripheral surface of the core of the adhesive tape winding body and the outer peripheral surface of the tape holding cylinder is not particularly limited. Even if rough surface processing such as turret processing is applied to the tape holding cylinder, the tape holding cylinders can be divided and the distance between the divided tape holding cylinders can be expanded, so that they are pressed against the inner peripheral surface of the core of the adhesive tape roll. May be. In addition, as a result of the inner peripheral surface of the winding core being abraded by friction with the outer peripheral surface of the tape holding cylinder, the adhesive tape is prevented from changing its deployability at the beginning and end of use of the adhesive tape roll. A metal cylinder may be inserted into the core of the winding body so that the cylinder slides and rotates on the outer circumference of the tape holding cylinder.

In the present invention, the means for temporarily stopping the withdrawal of the adhesive tape is not particularly limited, and, for example, teeth are engraved on the outer circumference of the guide roll, and a pawl rod pivotally mounted is provided. The pawl may be bitten by the tooth, or the rotatable pivotally attached stopper may be temporarily attached to the adhesive surface of the adhesive tape.

[0009]

The tape cutter of the present invention has a tape holding cylinder for externally fitting the adhesive tape roll, a guide roll, a sticking roll, and a cutting blade, and is designed to brake the rotation of the adhesive tape roll. Since the adhesive tape is not pulled out more than necessary, it can be cut smoothly.

[0010]

EXAMPLES Examples of the present invention will be specifically described below.
The invention is not limited to the examples. FIG. 1 is a partially enlarged side view showing a first embodiment of the present invention. A saw-toothed cutting blade 12 is screwed onto the outer surface of the end of the tape cutter 1 body 11 that is folded back into a substantially U shape. On the other end edge of the main body 11, as shown in a partially enlarged view, a tape holding cylinder 13 having an outer peripheral surface subjected to turret processing is welded,
A guide roll 14 made of metal and a sticking roll 15 made of synthetic rubber are rotatably axially mounted between the cutting blade 12 and the tape holding cylinder 13. Reference numeral 16 is a tape pressing piece rotatably attached to the folded end edge of the main body 11, and 17 is a tape free end temporary attachment projection. The inside of the circle C is an enlarged view of the surface shape of the tape holding cylinder 13.

At the time of use, as shown by a two-dot chain line, the adhesive tape winding body T is externally fitted to the tape holding cylinder 13,
The end of the adhesive tape t is pulled out from between the guide roll 14 and the sticking roll 15 and stuck to the side wall of the cardboard box to be sealed. Next, the inner surface of the tape holding cylinder 12 and the outer surface of the tape pressing piece 16 are gripped and pulled toward you, and the adhesive tape t
While pulling out, the pressure is applied from above the lid piece of the cardboard box with the sticking roll 15. After that, the cutting blade 12 is cut at a right angle to the adhesive tape t. The end of the adhesive tape t after cutting is stroked toward the tape holding cylinder 12 and temporarily attached to the protrusion 17.

FIG. 2 is a partially enlarged partial side view showing the tape holding cylinder portion of the second embodiment of the present invention. Inside the core D of the adhesive tape winding body T, a metal cylinder R is inserted,
The cylinder R is adapted to slide and rotate on the outer circumference of the turret-processed tape holding cylinder 13. The other parts are the same as in the first embodiment. In this embodiment, since the inner peripheral surface of the core of the adhesive tape winding body does not directly contact the outer peripheral surface of the tape holding cylinder, there is an advantage that it is not worn away by friction.

FIG. 3 is a partial side view showing the tape holding cylinder portion of the third embodiment of the present invention. The tape holding cylinder 13 is divided into two holding half cylinders 13a and 13b.
Are welded to the body 11. From the inner circumference of the other holding half cylinder 13b, an arm rod 18 having a long hole 19 formed near the tip is provided so as to project toward the center of the tape holding cylinder 13, and the main body 11
The male screw 20 protruding from is inserted into the long hole 19, and the female screw 21
The holding half cylinders 13a and 13b can be fixed at arbitrary intervals by screwing. The other parts are the same as in the first embodiment. In use, after inserting the tape holding cylinder 13 into the core of the adhesive tape winding body, loosen the female screw 21 to increase the distance between the holding half cylinders 13a and 13b, and The female screw 21 is tightened and fixed by pressing. When the distance between the holding half cylinders 13a and 13b is increased, the outer peripheral surfaces of the holding half cylinders 13a and 13b are brought into pressure contact with the inner peripheral surface of the winding core to exert a braking force. The holding half cylinders 13a and 13b may apply an outward pressing force by utilizing the elasticity of the spring.

FIG. 4 is a partially enlarged partial side view showing the guide roll portion of the fourth embodiment of the present invention. The guide roll 14 made of metal has a large resistance to rotation. The other parts are the same as in the first embodiment.

FIG. 5 is a partial side view showing the tape holding cylinder portion of the fifth embodiment of the present invention. The tape holding cylinder 13 is divided into two holding half cylinders 13a and 13b.
Are welded to the body 11. Arm rods 18a and 18b project inwardly from the inner circumferences of the holding half cylinders 13a and 13b, and both are rotatably coupled to each other. The other parts are the same as in the first embodiment. When using the arm tape 18a, pull out the desired length of adhesive tape.
Push up on the free end with your fingers in the direction of the arrow. Holding half cylinder 13a
The distance between the holding half cylinders 13a and 13b is enlarged, the outer peripheral surfaces of the holding half cylinders 13a and 13b are pressed against the inner peripheral surface of the winding core, and the withdrawal of the adhesive tape is temporarily stopped. As a result, the rotation of the adhesive tape winding body is braked.

FIG. 6 is a partial side view showing the tape holding cylinder portion of the sixth embodiment of the present invention. A metal cylinder R is inserted into the core C of the adhesive tape winding body T, and the arm rod 18a
By pushing up the free end in the direction of the arrow with a finger, the outer peripheral surfaces of the holding half cylinders 13a and 13b are pressed against the inner peripheral surface of the cylinder R, and the withdrawal of the adhesive tape is temporarily stopped. The other parts are the same as in the first embodiment. In this embodiment, since the inner peripheral surface of the core of the adhesive tape winding body does not directly contact the outer peripheral surface of the tape holding cylinder, there is an advantage that it is not worn away by friction.

FIG. 7 is a partial side view showing the guide roll portion of the seventh embodiment of the present invention. Teeth are engraved on the outer periphery of the guide roll 14 '. A pawl rod 3 having a pawl 31 at one end is rotatably attached to a shaft. The other parts are the same as in the first embodiment. In use, the nail 31 is pushed up by a finger against the elasticity of the spring 32 that is constantly biased in the direction of the arrow in the direction away from the guide roll, and the nail 33 is pushed up by the fingers. Are stopped by the teeth of the guide roll 14 ', and as a result, the rotation of the adhesive tape winding body is braked. When the fingers are released from the end portion 33, the elasticity of the spring 32 returns the pawl rod 3 to the original position, the pawl 31 is separated from the guide roll 14 ', and the adhesive tape winding body returns to a rotatable state.

FIG. 8 is an explanatory view showing the guide roll portion of the eighth embodiment of the present invention. Similar to the seventh embodiment, the outer circumference of the guide roll 14 'is provided with teeth. Nail 31 at one end
The nail rod 3 having is provided between the sticking roll 15 and the cutting blade 12,
It is pivotally mounted. The other parts are the same as in the first embodiment. In use, when the angle of the cutter is changed so that the cutting blade 12 is brought into contact with the adhesive tape t, the non-adhesive surface of the adhesive tape is pressed against the non-claw end 33 of the nail rod 3 and is shown by a chain line. As described above, it is pushed up in the direction of the arrow against the elasticity of the spring 32 which is always biased in the direction toward the adhesive tape. Then, the claws 31 are bitten by the teeth engraved on the outer circumference of the guide roll 14 ', the withdrawal of the adhesive tape is temporarily stopped, and as a result, the rotation of the adhesive tape winding body is braked. When the angle of the cutter is returned to its original position, the elasticity of the spring 32 returns the pawl rod 3 to the original position, the pawl 31 is separated from the guide roll 14 ', and the adhesive tape winding body returns to a rotatable state.

FIG. 9 is an explanatory view showing a stopper portion of the ninth embodiment of the present invention. The stopper 4 includes two arm rods 41 and 42 rotatably attached to the main body so as to be rotatable with respect to each other. In use, when the angle of the cutter is changed so that the cutting blade 12 comes into contact with the adhesive tape t, the non-adhesive surface of the adhesive tape is pressed against the free end 44 of the arm rod 41, and as shown by the one-dot chain line, The free end 44 of the arm rod 41 is pushed up in the direction of the arrow against the elasticity of the spring 43 which is constantly urged away from the tape. Then, the rotation shaft 47 slides in the elongated hole 46 formed in the arm rod 41, the connecting end 45 of the arm rod 41 is rotated downward, and the free end 48 of the arm rod 42 is rotated upward. To be done. A circular rod 49 extending on the back surface of the free end 48 is temporarily attached to the adhesive surface of the adhesive tape t, and the withdrawal of the adhesive tape is temporarily stopped. As a result, the rotation of the adhesive tape winding body is braked. Be done. When the angle of the cutter is returned to its original position, the elasticity of the spring 43 returns the arm rod 42 to the original position, the circular rod 49 is peeled from the adhesive surface of the adhesive tape, and the adhesive tape winding body returns to the rotatable state. The arm rod 41 may be pushed up by fingers.

[0020]

Since the tape cutter of the present invention is constructed as described above, it is possible to prevent the adhesive tape from being pulled out too much and to cut it easily and smoothly.

[Brief description of drawings]

FIG. 1 is a partially enlarged side view showing a first embodiment of a tape cutter of the present invention.

FIG. 2 is a partially enlarged partial side view showing a tape holding cylinder portion of a second embodiment of the tape cutter of the present invention.

FIG. 3 is a partial side view showing a tape holding cylinder portion of a third embodiment of the tape cutter of the present invention.

FIG. 4 is a partially enlarged partial side view showing a guide roll portion of a fourth embodiment of the tape cutter of the present invention.

FIG. 5 is a partial side view showing a tape holding cylinder portion of a fifth embodiment of the tape cutter of the present invention.

FIG. 6 is a partial side view showing a tape holding cylinder portion of a sixth embodiment of the tape cutter of the present invention.

FIG. 7 is a partial side view showing a guide roll portion of a seventh embodiment of the tape cutter of the present invention.

FIG. 8 is an explanatory view showing a guide roll portion of an eighth embodiment of the tape cutter of the present invention.

FIG. 9 is an explanatory view showing a stopper portion of a ninth embodiment of the tape cutter of the present invention.

[Explanation of symbols]

 1 Tape cutter 3 Claw rod 4 Stopper 11 Main body 12 Cutting blade 13 Tape holding cylinder 14 Guide roll 15 Adhesion roll 18 Arm rod 31 Claw 41 Arm rod 42 Arm rod C Core core R Cylinder T Adhesive tape Rolled body t Adhesive tape

Claims (2)

[Claims] 1. A tape holding cylinder for externally fitting the adhesive tape roll, a guide roll, a sticking roll, and a cutting blade, and means for braking the rotation of the adhesive tape roll is provided on the tape holding cylinder. A tape cutter characterized by 2. The adhesive tape roll has a tape holding cylinder for externally fitting the tape roll, a guide roll, a sticking roll, and a cutting blade, and by temporarily stopping the withdrawal of the adhesive tape, A tape cutter characterized by being provided with means for braking rotation.