JPH01231763A - Roll tape holder - Google Patents

Abstract

PURPOSE:To safely carry out the cutting of a tape by enabling a protection piece the top end of which is positioned above the blade of a cutter piece to be moved downward by means of the tension of the pull-out portion of a roll tape. CONSTITUTION:A first lever 10 on which a roller 11 having a knurling tool on its outer periphery is installed is provided in a case 5, while a second lever 12 having minute recessed and projecting portions on its surface is provided on the end of this first lever 10. A cutter 18 is fixed to the tape pull-out end portion of the body case 5 and a protecting piece 19 is vertically movably provided in front thereof. In this structure, when a tape is pulled out, the tape depresses the roller 11 downward causing a third lever 22 to be rotated via a link pin 16 to make the protecting piece 19 downwardly movable. Then, as the tape is pulled downward, the protecting piece 19 is moved downward and the tape is cut by the cutter piece 18.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a roll tape holder with a cutter.

BACKGROUND OF THE INVENTION In general, a roll of adhesive tape, such as Shichirohan Tape or gummed tape, is stored in a holder, the end of the tape is pinched, the desired amount is pulled out, and the tape is then cut with a cutter.

FIG. 4 shows a conventional example, in which a roll tape 1 is rotatably held in a main body 2 of a holder, and a part of the main body 2 of the holder is cut into a pulled-out portion of the roll tape 1. A cutter 3 for this purpose is protruded. In addition, 4 in the figure
is a roller that guides the roll tape 1 to be drawn out.

Problems to be Solved by the Invention The roll tape holder described above cuts the drawn-out tape with a cutter 3, but the blade of the cutter 3 protrudes from the upper surface of the main body 2, and when the tape is drawn out, the roll tape holder cuts the tape. There was a problem that the parts could touch and hurt the fingers.

The present invention has been made in consideration of the above-mentioned conventional problems, and an object of the present invention is to provide a roll tape holder with a safe cutter that is less likely to damage fingers.

Means for Solving the Problems In order to achieve the above object, the roll tape holder of the present invention includes a holder body having means for rotatably holding a roll tape, and a part of the holder body in the tape drawing direction. a cutter piece fixed with a blade facing upward; and a cutter piece provided along the cutter piece and movable up and down;
A protective piece that is biased upward and whose upper end is positioned above the blade of the cutter piece, and a downward movement regulating body that restricts the downward movement of the protective piece, are provided with The protection piece is configured to be able to move downward by releasing the restriction of the downward movement regulating body.

Function: The roll tape holder configured as described above usually prevents the upper end of the protective piece from being located above the blade of the cutter piece. When the roll tape is pulled out, the tension of the pull-out tape moves the downward motion regulating body to release the downward motion regulation of the protective piece. By releasing this restriction, the protective piece becomes freely movable downward, and as the protective piece is pushed down, the pull-out tape hits the blade of the cutter piece and is cut many times. After the cutting is performed, the tension on the pull-out tape is released, so that the protective piece moves upward again to perform its protective function.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 3.

In the figure, 5 is the main body case of the roll tape holder, and a cover 6 having a semicircular longitudinal section is detachably provided.
A tape core holding vibrator 7 is provided inside, and the roll tape 8 is rotatably held by this tape core holding pipe 7. The side plate of the main body case 5 has a first support shaft 9.
A lever 10 is pivotally attached to the lever 10, and a roller 11 having a knurl on the outer periphery is rotatably provided at the other end of the lever 10. This roller 11 is located at the tape outlet. An end of a second lever 12 extending in the tape pulling direction is pivotally connected to the tip of the first lever 10. This lever 12 has minute irregularities 13 on its surface,
Furthermore, a large concave portion 14 is provided in the center of the top surface. Furthermore, a member 15 extending downward is provided at the tip of the second lever 12, and a connecting pin 16 projecting laterally is provided at the bottom of this member 15. A stopper 1 for regulating the upward movement of the second lever 12 is provided inside the main body case 5.
7 is provided.

A cutter piece 18 having a blade on the upper side is fixed to the tape pull-out end of the main body case 6. In addition, a protection piece 19 is provided in front of the cutter piece 18 so as to extend along the cutter piece 18 and to be movable up and down. This protective piece 19 has a horizontal piece 19a bent in two stages in the middle, and is biased upward by a spring 2o, so that its upper end maintains a position higher than the upper side of the cutter piece 18 in the raised position. ing. A cam 21 is rotatably provided at the lower part of the horizontal piece 19iL of the protection piece 19. Although not shown, the protective piece 1
The width of the horizontal piece 19a of No. 9 is also larger than the width of the vertical piece 19b below the protective piece 19. The cam 2
1 is connected to a third lever 22 that rotates around a cam 21, and the third lever 22 has a retaining groove 23 formed at its rear end that connects to the connecting pin of the second lever 12. 16, thereby being connected to the second lever 12.

The third lever 22 is urged by a spring 24 to rotate upward.

The operation of the above configuration will be explained below. FIG. 2 shows a state in which the tape is not drawn out, and the drawn-out portion of the roll tape 8 is led out from the roller 11 along the surface of the second lever 120, and these rollers 11 and the second lever 1
No downward pressure was applied to 2. Therefore, the protective piece 19
is raised by the bias of the spring 20, and its upper end is located above the upper side of the cutter piece 18. When a finger is placed on the upper part of the cutter piece 18, it hits the protective piece 19 but does not hit the cutter piece 18. , Therefore, fingers are not injured by the cutter piece 18.

In this state, the third lever 22 is rotated upward by the spring 24, and the cam 21 connected to the third lever 22 extends its maximum diameter portion (protrusion in the drawing) to the protective piece 19. This corresponds to the lower surface of the horizontal piece 19a. Therefore, the downward movement of the protective piece 19 is regulated by the cam 21, and even if a finger touches the protective piece 19, the upper end of the protective piece 19 remains above the blade of the cutter piece 18, ensuring safety. It is something that can be done.

Note that the tape usually has an adhesive surface, but the roller 11
Since the surface of the second lever 12 has unevenness due to knurling or the like, it may be difficult to adhere or adhere weakly to the surfaces of the roller 11 and the second lever 12. It can be easily pulled out by lifting the end.

FIG. 3 shows the state in which the tape is cut after being pulled out. When tension is applied to the tape in the pulled-out state, the tape presses the groove roller 11 downward. This roller 11 rotates the first lever 10 in the forward direction, and lowers the connecting bin 16 at the front end of the second lever 12 connected thereto. This downward movement of the connecting bin 16 causes the third lever 22 to rotate so that its rear end moves downward against the spring 24, and the cam 22 connected thereto turns.
Rotate 1. As the cam 21 rotates, its maximum diameter part escapes from below the horizontal piece 19a of the protective piece 19, so that the protective piece 19 can move downward.

When the tip of the tape is pulled downward as shown in FIG. 3, the protective piece 19 is first pushed and moves downward against the spring 2o. The tape then hits the blade of the cutter piece 18 and is cut by the cutter piece 18.

After the tape is cut, the tension on the tape is released, so the protective piece 19 moves upward as shown in FIG. 2, and the cam 21
The rotation returns and the downward movement of the protective piece 19 is restricted. Also,
The second lever 12 and the first lever 10 also return to their original positions. Then, the danger caused by the cutter piece 18 is eliminated.

In the above embodiments, cellophane tape or the like is used as the tape, but duct tape or roll tape having no adhesive properties may also be used.

The shapes of the grooves and the connected levers are not limited to those shown in the drawings, and any mechanism may be used as long as the protection piece is released from the downward movement restriction by the tension of the tape and can be freely moved downward. Further, the tape holding body may have any structure as long as it holds a roll tape, and is not limited to the illustrated structure.

Effects of the Invention As is clear from the description of the above embodiments, the roll tape holder of the present invention utilizes the tension of the tape drawer to release the restriction on the downward movement of the protective piece, and also pushes down the protective piece.
Because the tape touches the cutter piece and the tape can be cut, only when the tape is pulled out and cut.
The blade of the cutter piece can be exposed to perform the required cutting operation, and it is usually protective and dynamic, so its practical value is great.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional side view of a roll tape holder according to an embodiment of the present invention, Fig. 2 is a sectional side view of the main part of the cutter piece of the roll tape holder in a protected state, and Fig. 3 is a drawing-out cutting of the same tape. FIG. 4 is a cross-sectional side view of a conventional roll tape holder.

Claims (3)

[Claims] (1) A holder body having a means for rotatably holding the roll tape, a cutter piece fixed to a part of the holder body in the tape pulling direction with the blade facing upward, and a cutter piece fixed along the cutter piece. A protective piece is provided on the blade and is movable up and down, and is biased upward so that its upper end is positioned above the blade of the cutter piece, and a downward movement regulating body that restricts the downward movement of the protective piece. . A roll tape holder in which the protection piece can be moved downward by releasing the regulation of the downward motion regulating body by tensioning the pull-out portion of the roll tape. (2) A holder body having means for rotatably holding the roll tape, a cutter piece fixed to a part of the holder body in the tape pulling direction with the blade facing upward, and a cutter piece fixed along the cutter piece. A protective piece is provided on the blade and is movable up and down, and is biased upward so that its upper end is positioned above the blade of the cutter piece, and a downward movement regulating body that restricts the downward movement of the protective piece. , the protective piece has a horizontal part in the middle,
The downward movement regulating body is formed by a cam and is arranged so that its outer periphery is in contact with the lower part of the horizontal portion of the protective piece,
A roller is provided in the pull-out part of the roll tape, and the roller is connected to the downward motion regulating body via a lever, and the downward movement of the roller releases the regulation of the downward motion regulating body. A roll tape holder configured to perform motion. (3) The roll tape holder according to claim 2, wherein an uneven portion is formed on the outer surface of both or one of the roller and the lever.