JP6221672B2 - Tape dispenser - Google Patents

Description

  The present invention relates to a tape dispenser for cutting a tape fed from a wound state into a desired length.

  Conventionally, various tape dispensers for cutting the tape into a desired length in a state where a wound tape such as an adhesive tape or a wrap film is fed out have been proposed. And in such a tape dispenser, what can cut | disconnect a tape suitably also in the case of continued use by comprising a cutting blade so that replacement | exchange is possible is proposed (for example, patent document 1 and patent document 2) reference).

  However, the material of the tape to be cut by such a cutting blade is not limited to a tape mainly composed of cellophane, but may be polypropylene (PP) or the like even if it is limited to a tape dispenser that can be suitably used in an office or home, for example. Various materials such as polyethylene terephthalate (PET) are applied. At present, depending on the material of these tapes, it may be necessary to frequently replace the cutting blade. That is, at present, there is a demand for an aspect that allows easy and reliable replacement of the cutting blade.

Japanese Utility Model Publication No. 57-147863 Japanese Utility Model Publication No. 58-54442

  The present invention focuses on such problems, and an object of the present invention is to provide a tape dispenser capable of easily and reliably exchanging cutting blades.

  In order to achieve such an object, the present invention takes the following measures.

  That is, the tape dispenser according to the present invention includes a reel for holding a refill formed by winding the tape in an annular shape, a main body for rotatably holding the reel, and a detachably provided main body for cutting the tape. A tape dispenser comprising: a cutting blade having a cutting edge for cutting the tape; a cover for detachably holding the cutting blade; and the cutting blade. And an orientation determining mechanism that can be attached only to a predetermined position and direction with respect to the cover.

  If it is such, in addition to being able to replace the cutting blade with the blade attached to the main body removed, the cutting blade can be definitely attached to the predetermined orientation by the orientation determining mechanism. Therefore, the cutting blade can be easily and accurately replaced.

  Particularly, in the above configuration, even if the cutting blade has an asymmetric shape in the thickness direction, the orientation determining mechanism can be attached to the cover only in one of the front and back sides of the cutting blade. Thus, the present invention can be easily applied to cutting blades having various aspects.

  The orientation determining mechanism includes a central portion that engages with the cover at the center in the width direction of the cutting blade, and a plurality of orientation determination portions provided at positions that are not line-symmetric with each other from the center in the width direction.

  And in order to comprise an orientation determination part with a simple structure, it is desirable to make the said center part and the said orientation determination part into the hole pierced by the said cutting blade.

  In order to effectively secure the performance of cutting the tape of the mounted cutting blade with a simple configuration, the cover may be provided with a blade pressing portion that presses and positions the cutting blade in the thickness direction.

  ADVANTAGE OF THE INVENTION According to this invention, the tape dispenser which can perform replacement | exchange of a cutting blade easily and reliably can be provided.

The perspective view which concerns on one Embodiment of this invention. FIG. The perspective view of the principal part which concerns on the same embodiment. FIG. Structure explanatory drawing of the principal part which concerns on the same embodiment. Other composition explanatory views. Action | operation explanatory drawing which concerns on the same embodiment. FIG. Same as above. The AA partial fragmentary sectional view concerning FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  The tape dispenser according to the present embodiment is suitably used in offices, store cash registers, homes, and the like. The tape dispenser holds a refill RT (FIG. 7) in which a tape such as an adhesive tape using cellophane or another resin as a base material is wound around a paper core, and is used when a tape is used. Only the length is drawn and cut.

  As shown in FIGS. 1 to 10, the tape dispenser includes a reel 2 for holding a refill RT in which a tape is wound in an annular shape, a main body 1 for rotatably holding the reel 2, and the main body. 1 and a blade portion 3 having a cutting blade 33 that is detachably provided to cut the tape.

  The main body 1 has a reel holding part 11 for holding the reel 2 and a blade holding part 12 for holding a detachable cartridge-like blade part 3. The reel holding unit 11 includes a bearing 14 for holding the reel 2 rotatably, and a guide unit 13 for guiding the reel 2 to the bearing 14. The blade holding portion 12 includes a claw receiver 15 for engaging with the blade portion 3 on both sides in the width direction, and a pinching portion 16 for pinching from the front-rear direction, which is a tape drawing direction orthogonal to the width direction. Yes. Further, the forward-facing surface located on the rear side of the pinching portion 16 serves as an auxiliary pressing surface 17 for indirectly pressing the cutting blade 33.

  Here, in the tape dispenser according to the present embodiment, the blade 3 has a cutting blade 33 having a cutting edge 34 for cutting the tape, an outer cover 31 serving as a cover for detachably holding the cutting blade 33, and It is characterized by comprising an inner cover 32 and a central hole 36 and an orientation hole 37 as an orientation mechanism capable of attaching the cutting blade 33 to the cover only in a predetermined position and direction.

  Hereinafter, the structure regarding the reel 2 and the blade part 3 in the tape dispenser according to the present embodiment will be described.

  The reel 2 is formed with a first member 2a and a second member 2b, which are substantially molded shapes, for example, which are resin molded products, through an engaging portion 2c formed between the first member 2a and the second member 2b. Being done. That is, since the reel 2 has a substantially right and left contrast shape, it may be attached to the main body 1 in any direction. The engaging portion 2c is formed by engaging the first member 2a and the second member 2b so as to be able to contact and separate, but the specific shape of the engaging portion 2c has a normal structure. Detailed description is omitted. The reel 2 formed by the first member 2a, the second member 2b, and the engaging portion 2c includes a rotating shaft 21 positioned at the center, an inner core 22 formed in the vicinity of the rotating shaft 21, and an inner An arm 23 that rises radially in three directions from the outer side of the core 22 in the width direction, an outer core 24 that is formed between the tips of the arms 23 and that holds the refill RT, and a positioning portion 25 for positioning the refill RT in the width direction. And have. The rotating shaft 21 is a protrusion protruding in a circular shape from both sides in the width direction, and is inserted into the guide portion 13 when being mounted on the main body 1 and is slid obliquely downward, for example, to the bearing 14. The inner core 22 is for holding other refills having a standard with a small diameter. When the other refill is held in the inner center, the first member 2a and the second member 2b are disengaged at one end, and the first member 2a and the second member 2b are mounted so as to sandwich the other refill. The inner core 22 is held so as to be rotatable relative to other refills. Then, the tape drawn from other refills is guided to the blade portion 3 through between the arms 23. In this case, although not shown in the figure, when the tape is ejected from another refill, the reel 2 itself slightly rotates together with the other refill, so that the tape comes into contact with the arm 23. A sliding motion is performed with respect to the arm 23 by abutting on the non-contact surface. Therefore, the tape can be pulled out smoothly from other refills, and the tape can be fed out stably. In the present embodiment, the arm 23 rises from three places at intervals of 120 ° depending on the number of positioning portions 25 provided. Of course, the arm 23 rises from the whole circumference, or radiates from four or more places. You may make it stand up. In this embodiment, the outer core 24 is formed at three equiangular intervals in the circumferential direction. The outer core 24 is for holding by press-contacting from the inside of the refill RT. The outer core 24 is provided with two pressing ribs 24 a in the circumferential direction. Since the pressing rib 24a has a rounded surface 24b that is curved so that the center in the width direction is most raised, the refill RT can be mounted smoothly.

  The positioning portion 25 is provided for each outer core 24. That is, three positioning portions 25 are provided at equal intervals in the circumferential direction of the core. Further, the positioning portion 25 is provided on the outer edge of the outer core 24 and has a wide edge 27 having a width of, for example, 24 mm which is the widest of the refills RT, and the refill having the narrowest width from the wide edge 27. It has a narrow edge 26 having a width dimension of 12 mm, which is the width dimension of RT, and a connecting portion 28 for connecting the wide edge 27 to the narrow edge 26. The connecting portion 28 has a concave edge 28a having a tapered shape that is continuously connected while being curved concavely between the wide edge 27 and the narrow edge 26, and a partial spherical shape continuously to the concave edge 28a. And a finger receiving surface 28b formed to be recessed.

  The blade part 3 has a cutting blade 33 formed as a cutting edge 34 so that the upper edge cuts the tape, and an outer cover 31 and an inner cover 32 that are covers that hold the cutting blade 33 detachably. Yes. In this embodiment, the cutting edge 33 is formed such that the cutting edge 34 has an asymmetric shape in the thickness direction, for example. More specifically, the cutting edge 34 has an asymmetric shape in the thickness direction by forming a cross-sectional shape that is sharply projected by 0.2 mm on the outer cover 31 side, which is the front end side of the tape. As a result, as shown in the drawing, it is possible to avoid the formation of a sharp front view shape that gives a stimulus to the fingertip, and to ensure the safety of the tape while ensuring safety. As shown in FIGS. 5 and 6, the cutting blade 33 has a cutting edge 34 for cutting the tape, a central hole 36 as a central portion positioned at the center in the width direction and the vertical direction, and an oblique direction from the central hole 36. A plurality of, ie, two, orienting holes 37 that are point-symmetrical rather than line-symmetric, and a lower edge 35 that faces the cutting edge 34 and has a partially circular cut-out shape in the width direction. ing. In the present embodiment, the tape cannot be cut by the lower edge 35. However, as shown in the figure, the lower cutting edge 34U that can cut the tape in the same manner as the cutting edge 34 is formed instead of the lower edge 35. The blade 33W may be applied. The outer cover 31 includes a central convex portion 311 that fits in the central hole 36, an orientation convex portion 312 that fits in the orientation hole 37, an engaging claw 313 that engages with the claw receiver 15 of the blade holding portion 12, and an inner cover And a pin receiver 314 which can be engaged with the pin 32 in a relatively rotatable manner. The inner cover 32 urges the cutting blade 33 toward the outer cover 31, in other words, the blade pressing portion 321 that presses the cutting blade 33 in the thickness direction, and the auxiliary pressing surface 17 when attached to the blade holding portion 12. A pressed surface 322 to be pressed, an upper pressing surface 323 that presses the vicinity of the cutting edge 34, and an engagement pin 324 that engages with the pin receiver 314 of the outer cover 31 are provided.

  Thus, in the present embodiment, as shown in FIG. 7, by providing the positioning portion 25 on the reel 2, it is provided so as to be symmetrical on both sides of the outer core 24. The positioning part 25 positions the center of the width dimension of the refill RT and the center of the width dimension of the reel 2. The normal refill RT is a standard type (S) having a width of 15 mm as shown in the middle of the figure, a narrow type (N) having a width of 12 mm as shown in the upper part of the figure, and a 24 mm width shown in the lower part of the figure. The wide type (W) and the 18 mm wide type refill RT (not shown) can be selectively used depending on the application. When the reel 2 of the present embodiment is used, when the refill RT is mounted on the reel 2, the finger is pressed against the connecting portion 28 by, for example, a finger so that the finger is a narrow edge 26, a wide edge 27, and a connecting portion 28. By touching the refill RT while touching any one, the center of the width direction of the refill RT having any width dimension matches the center of the reel 2 in the width direction. Further, at that time, the connecting portion 28 has a concave edge 28a having a concave shape in a curved shape and a finger receiving surface 28b that is concave in a spherical shape. Therefore, the user can comfortably attach the refill RT.

  Moreover, in this embodiment, since the blade part 3 includes an orientation determining mechanism that allows the cutting blade 33 to be attached only to a predetermined position and direction with respect to the cover, either one of the front and back of the cutting blade 33 is oriented. It is mounted between the outer cover 31 and the inner cover 32 without making a mistake only.

  Here, the aspect in which the cutting blade 33 is securely attached to the main body 1 side without making a mistake in the direction and without rattling will be described with reference to FIGS.

  FIG. 8 shows a state before the cutting blade 33 is mounted on the outer cover 31 side. The outer cover 31 and the inner cover 32 are assembled so as to be rotatable with respect to each other via an engagement pin 324 and a pin receiver 314. Here, the cutting blade 33 cannot be attached to the outer cover 31 side unless the positions of the center hole 36 and the orientation hole 37 are correctly matched with the positions of the center projection 311 and the orientation projection 312. That is, in this embodiment, when the cutting blade 33 is mistakenly installed upside down, the position of the orientation convex portion 312 and the position of the orientation hole 37 do not match, and therefore cannot be attached.

  FIG. 9 shows a state in which the cutting blade 33 is clamped by the inner cover 32 and the outer cover 31 in a state where the cutting blade 33 is correctly attached to the outer cover 31 side. At this time, the blade pressing portion 321 of the inner cover 32 elastically biases the cutting blade 33 in the thickness direction by the pressing surface 321a. Thus, in the blade portion 3 with the cutting blade 33 mounted, the cutting blade 33 does not wobble unexpectedly.

  FIG. 10 shows a state in which the blade part 3 is mounted on the blade holding part 12. At this time, the blade portion 3 is positioned in the width direction so that the center in the width direction of the cutting blade 33 matches the center in the width direction of the reel 2 due to the engagement between the claw receiver 15 and the engagement claw 313. The pinching portion 16 also positions the tape in the moving direction at the same time. In particular, in the present embodiment, the auxiliary pressing surface 17 of the clamping unit 16 presses the pressed surface 322 of the inner cover 32 to strongly press the upper end portion, that is, the vicinity of the cutting edge 34, with the upper pressing surface 323. When the tape is cut, there is no rattling in the tape traveling direction, and the operation force for cutting the tape is transmitted to the tape side without waste, so that smooth tape cutting is ensured.

  With the configuration as described above, the tape dispenser according to the present embodiment allows the cutting blade 33 to be replaced with the blade 3 attached to the main body 1 removed, and the orientation determining mechanism. Thus, the cutting blade 33 can be attached to the predetermined direction without fail, so that the cutting blade 33 can be easily and accurately replaced.

  In particular, in this embodiment, the cutting blade 33 has an asymmetric shape in the thickness direction, but the orientation determining mechanism can be attached to the cover only in one of the front and back directions of the cutting blade 33. Thus, accurate attachment of the cutting blade 33 is realized.

  As a specific aspect of the orientation determining mechanism, a central hole 36 as a central portion that engages with the cover at the center in the width direction of the cutting blade 33, and a plurality of positions provided at positions that are not line-symmetric with each other from the center in the width direction. By providing the orientation determining hole 37 as the orientation determining portion, the cutting blade 33 can be assembled with a simple configuration.

  In particular, in order to realize the orientation determination mechanism with the simple configuration in which the cutting blade 33 has a simple plate shape, in the present embodiment, the hole drilled in the cutting blade 33 as the center portion and the orientation determining portion, that is, the center A hole 36 and an orientation hole 37 are provided.

  In addition, by providing the orientation determining hole 37 at a position that is point-symmetric with respect to the center of the central hole 36, a mode in which the user can easily recognize the predetermined orientation of the cutting blade 33 is realized. .

  As shown in FIGS. 5 and 6, in this embodiment, the cutting edge 34 for cutting the tape may be a cutting blade 33 provided at only one place, but the cutting edge 34 and the lower cutting are respectively provided on opposite sides. The cutting blade 33W provided with the edge 34 may be applied to increase the period and number of times that one blade itself can be used.

  In this embodiment, in order to effectively secure the performance of the mounted cutting blade 33 with a simple configuration, the inner cover 32 is provided with a blade pressing portion 321 that presses and positions the cutting blade 33 in the thickness direction. Yes. In order to further secure the performance of the cutting blade 33, the auxiliary pressing surface 17 that presses and positions the cutting blade 33 indirectly via the inner cover 32 is also provided on the main body 1 side. ing.

  Although the embodiment of the present invention has been described above, the specific configuration of each unit is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

  For example, in the above embodiment, an aspect in which an opening is made in the cutting blade as the orientation determining mechanism has been disclosed, but of course, it may be uneven by pressing, or an uneven shape may be formed by bonding different things. May be. Further, specific aspects of the cutting edge and the reel are not limited to those of the above-described embodiment, and various aspects including the existing ones can be applied.

  In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

  The present invention can be used as a tape dispenser for cutting a tape fed out from a wound state into a desired length.

DESCRIPTION OF SYMBOLS 1 ... Main body 2 ... Reel 3 ... Blade part 33 ... Cutting blade 31 ... Cover (front cover)
32. Cover (rear cover)
36 ... Orientation mechanism (center hole)
37 ... Orientation mechanism (orientation hole)

Claims (4)

A reel for holding a refill formed by winding a tape in an annular shape, a main body for rotatably holding the reel, and a blade portion that is detachably provided on the main body and cuts the tape. A tape dispenser,
The blade portion may have a cutting blade having a cutting edge for cutting the tape, a cover for detachably holding the cutting blade, and the cutting blade attached to the cover only in a predetermined position and direction. An orientation determining mechanism ,
The orientation determining mechanism has a central portion that engages with the cover at the center in the width direction of the cutting blade, and a plurality of orientation determination portions provided at positions that are not line-symmetric with each other from the center in the width direction. Features tape dispenser.   The tape dispenser according to claim 1, wherein the cutting blade has an asymmetric shape in the thickness direction, and the orientation determining mechanism can be attached to the cover only in one of the front and back directions of the cutting blade. The tape dispenser according to claim 1 or 2, wherein the central portion and the orientation determining portion are holes formed in the cutting blade. The tape dispenser according to claim 1, 2 or 3, wherein the cover has a blade pressing portion for pressing and positioning the cutting blade in the thickness direction.

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